diff options
Diffstat (limited to 'target/linux/generic-2.6/files')
63 files changed, 872 insertions, 22659 deletions
diff --git a/target/linux/generic-2.6/files/drivers/char/gpio_dev.c b/target/linux/generic-2.6/files/drivers/char/gpio_dev.c deleted file mode 100644 index 4dc6374..0000000 --- a/target/linux/generic-2.6/files/drivers/char/gpio_dev.c +++ /dev/null @@ -1,201 +0,0 @@ -/* - * character device wrapper for generic gpio layer - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA02111-1307USA - * - * Feedback, Bugs... blogic@openwrt.org - * - */ - -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/init.h> -#include <asm/uaccess.h> -#include <asm/io.h> -#include <asm/gpio.h> -#include <asm/atomic.h> -#include <linux/init.h> -#include <linux/genhd.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/gpio_dev.h> - -#define DRVNAME "gpiodev" -#define DEVNAME "gpio" - -static int dev_major; -static unsigned int gpio_access_mask; -static struct class *gpiodev_class; - -/* Counter is 1, if the device is not opened and zero (or less) if opened. */ -static atomic_t gpio_open_cnt = ATOMIC_INIT(1); - -static int -gpio_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg) -{ - int retval = 0; - - if (((1 << arg) & gpio_access_mask) != (1 << arg)) - { - retval = -EINVAL; - goto out; - } - - switch (cmd) - { - case GPIO_GET: - retval = gpio_get_value(arg); - break; - - case GPIO_SET: - gpio_set_value(arg, 1); - break; - - case GPIO_CLEAR: - gpio_set_value(arg, 0); - break; - - case GPIO_DIR_IN: - gpio_direction_input(arg); - break; - - case GPIO_DIR_OUT: - gpio_direction_output(arg, 0); - break; - - default: - retval = -EINVAL; - break; - } - -out: - return retval; -} - -static int -gpio_open(struct inode *inode, struct file *file) -{ - int result = 0; - unsigned int dev_minor = MINOR(inode->i_rdev); - - if (dev_minor != 0) - { - printk(KERN_ERR DRVNAME ": trying to access unknown minor device -> %d\n", dev_minor); - result = -ENODEV; - goto out; - } - - /* FIXME: We should really allow multiple applications to open the device - * at the same time, as long as the apps access different IO pins. - * The generic gpio-registration functions can be used for that. - * Two new IOCTLs have to be introduced for that. Need to check userspace - * compatibility first. --mb */ - if (!atomic_dec_and_test(&gpio_open_cnt)) { - atomic_inc(&gpio_open_cnt); - printk(KERN_ERR DRVNAME ": Device with minor ID %d already in use\n", dev_minor); - result = -EBUSY; - goto out; - } - -out: - return result; -} - -static int -gpio_close(struct inode * inode, struct file * file) -{ - smp_mb__before_atomic_inc(); - atomic_inc(&gpio_open_cnt); - - return 0; -} - -struct file_operations gpio_fops = { - ioctl: gpio_ioctl, - open: gpio_open, - release: gpio_close -}; - -static int -gpio_probe(struct platform_device *dev) -{ - int result = 0; - - dev_major = register_chrdev(0, DEVNAME, &gpio_fops); - if (!dev_major) - { - printk(KERN_ERR DRVNAME ": Error whilst opening %s \n", DEVNAME); - result = -ENODEV; - goto out; - } - - gpiodev_class = class_create(THIS_MODULE, DRVNAME); - class_device_create(gpiodev_class, NULL, MKDEV(dev_major, 0), NULL, DEVNAME); - - printk(KERN_INFO DRVNAME ": gpio device registered with major %d\n", dev_major); - - if (dev->num_resources != 1) - { - printk(KERN_ERR DRVNAME ": device may only have 1 resource\n"); - result = -ENODEV; - goto out; - } - - gpio_access_mask = dev->resource[0].start; - - printk(KERN_INFO DRVNAME ": gpio platform device registered with access mask %08X\n", gpio_access_mask); -out: - return result; -} - -static int -gpio_remove(struct platform_device *dev) -{ - unregister_chrdev(dev_major, DEVNAME); - return 0; -} - -static struct -platform_driver gpio_driver = { - .probe = gpio_probe, - .remove = gpio_remove, - .driver = { - .name = "GPIODEV", - .owner = THIS_MODULE, - }, -}; - -static int __init -gpio_mod_init(void) -{ - int ret = platform_driver_register(&gpio_driver); - if (ret) - printk(KERN_INFO DRVNAME ": Error registering platfom driver!"); - - return ret; -} - -static void __exit -gpio_mod_exit(void) -{ - platform_driver_unregister(&gpio_driver); -} - -module_init (gpio_mod_init); -module_exit (gpio_mod_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("John Crispin / OpenWrt"); -MODULE_DESCRIPTION("Character device for for generic gpio api"); diff --git a/target/linux/generic-2.6/files/drivers/input/misc/gpio_buttons.c b/target/linux/generic-2.6/files/drivers/input/misc/gpio_buttons.c deleted file mode 100644 index 83a8178..0000000 --- a/target/linux/generic-2.6/files/drivers/input/misc/gpio_buttons.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * Driver for buttons on GPIO lines not capable of generating interrupts - * - * Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org> - * - * This file was based on: /drivers/input/misc/cobalt_btns.c - * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> - * - * also was based on: /drivers/input/keyboard/gpio_keys.c - * Copyright 2005 Phil Blundell - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> - -#include <linux/input.h> -#include <linux/input-polldev.h> -#include <linux/ioport.h> -#include <linux/platform_device.h> - -#include <linux/gpio_buttons.h> - -#include <asm/gpio.h> - -#define DRV_NAME "gpio-buttons" -#define DRV_VERSION "0.1.1" -#define PFX DRV_NAME ": " - -struct gpio_buttons_dev { - struct input_polled_dev *poll_dev; - struct gpio_buttons_platform_data *pdata; -}; - -static void gpio_buttons_poll(struct input_polled_dev *dev) -{ - struct gpio_buttons_dev *bdev = dev->private; - struct gpio_buttons_platform_data *pdata = bdev->pdata; - struct input_dev *input = dev->input; - int i; - - for (i = 0; i < bdev->pdata->nbuttons; i++) { - struct gpio_button *button = &pdata->buttons[i]; - unsigned int type = button->type ?: EV_KEY; - int state; - - state = gpio_get_value(button->gpio) ? 1 : 0; - state ^= button->active_low; - - if (state) { - button->count++; - } else { - if (button->count >= button->threshold) { - input_event(input, type, button->code, 1); - input_sync(input); - } - button->count = 0; - } - - if (button->count == button->threshold) { - input_event(input, type, button->code, 0); - input_sync(input); - } - } -} - -static int __devinit gpio_buttons_probe(struct platform_device *pdev) -{ - struct gpio_buttons_platform_data *pdata = pdev->dev.platform_data; - struct gpio_buttons_dev *bdev; - struct input_polled_dev *poll_dev; - struct input_dev *input; - int error, i; - - - if (!pdata) - return -ENXIO; - - bdev = kzalloc(sizeof(*bdev), GFP_KERNEL); - if (!bdev) { - printk(KERN_ERR DRV_NAME "no memory for device\n"); - return -ENOMEM; - } - - poll_dev = input_allocate_polled_device(); - if (!poll_dev) { - printk(KERN_ERR DRV_NAME "no memory for polled device\n"); - error = -ENOMEM; - goto err_free_bdev; - } - - poll_dev->private = bdev; - poll_dev->poll = gpio_buttons_poll; - poll_dev->poll_interval = pdata->poll_interval; - - input = poll_dev->input; - - input->evbit[0] = BIT(EV_KEY); - input->name = pdev->name; - input->phys = "gpio-buttons/input0"; - input->dev.parent = &pdev->dev; - - input->id.bustype = BUS_HOST; - input->id.vendor = 0x0001; - input->id.product = 0x0001; - input->id.version = 0x0100; - - for (i = 0; i < pdata->nbuttons; i++) { - struct gpio_button *button = &pdata->buttons[i]; - unsigned int gpio = button->gpio; - unsigned int type = button->type ?: EV_KEY; - - error = gpio_request(gpio, button->desc ? - button->desc : DRV_NAME); - if (error) { - printk(KERN_ERR PFX "unable to claim gpio %u, " - "error %d\n", gpio, error); - goto err_free_gpio; - } - - error = gpio_direction_input(gpio); - if (error) { - printk(KERN_ERR PFX "unable to set direction on " - "gpio %u, error %d\n", gpio, error); - goto err_free_gpio; - } - - input_set_capability(input, type, button->code); - button->count = 0; - } - - bdev->poll_dev = poll_dev; - bdev->pdata = pdata; - platform_set_drvdata(pdev, bdev); - - error = input_register_polled_device(poll_dev); - if (error) { - printk(KERN_ERR PFX "unable to register polled device, " - "error %d\n", error); - goto err_free_gpio; - } - - return 0; - -err_free_gpio: - for (i = i - 1; i >= 0; i--) - gpio_free(pdata->buttons[i].gpio); - - input_free_polled_device(poll_dev); - -err_free_bdev: - kfree(bdev); - - platform_set_drvdata(pdev, NULL); - return error; -} - -static int __devexit gpio_buttons_remove(struct platform_device *pdev) -{ - struct gpio_buttons_dev *bdev = platform_get_drvdata(pdev); - struct gpio_buttons_platform_data *pdata = bdev->pdata; - int i; - - input_unregister_polled_device(bdev->poll_dev); - - for (i = 0; i < pdata->nbuttons; i++) - gpio_free(pdata->buttons[i].gpio); - - input_free_polled_device(bdev->poll_dev); - - kfree(bdev); - platform_set_drvdata(pdev, NULL); - - return 0; -} - -static struct platform_driver gpio_buttons_driver = { - .probe = gpio_buttons_probe, - .remove = __devexit_p(gpio_buttons_remove), - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init gpio_buttons_init(void) -{ - printk(KERN_INFO DRV_NAME " driver version " DRV_VERSION "\n"); - return platform_driver_register(&gpio_buttons_driver); -} - -static void __exit gpio_buttons_exit(void) -{ - platform_driver_unregister(&gpio_buttons_driver); -} - -module_init(gpio_buttons_init); -module_exit(gpio_buttons_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>"); -MODULE_VERSION(DRV_VERSION); -MODULE_DESCRIPTION("Polled buttons driver for CPU GPIOs"); - diff --git a/target/linux/generic-2.6/files/drivers/leds/leds-alix.c b/target/linux/generic-2.6/files/drivers/leds/leds-alix.c deleted file mode 100644 index 103ca7d..0000000 --- a/target/linux/generic-2.6/files/drivers/leds/leds-alix.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * LEDs driver for PCEngines ALIX 2/3 series - * - * Copyright (C) 2007 Petr Liebman - * - * Based on leds-wrap.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/leds.h> -#include <linux/err.h> -#include <asm/io.h> - -#define DRVNAME "alix-led" - -#define ALIX_LED1_PORT (0x6100) -#define ALIX_LED1_ON (1<<22) -#define ALIX_LED1_OFF (1<<6) - -#define ALIX_LED2_PORT (0x6180) -#define ALIX_LED2_ON (1<<25) -#define ALIX_LED2_OFF (1<<9) - -#define ALIX_LED3_PORT (0x6180) -#define ALIX_LED3_ON (1<<27) -#define ALIX_LED3_OFF (1<<11) - - -static struct platform_device *pdev; - -static void alix_led_set_1(struct led_classdev *led_cdev, - enum led_brightness value) -{ - if (value) - outl(ALIX_LED1_ON, ALIX_LED1_PORT); - else - outl(ALIX_LED1_OFF, ALIX_LED1_PORT); -} - -static void alix_led_set_2(struct led_classdev *led_cdev, - enum led_brightness value) -{ - if (value) - outl(ALIX_LED2_ON, ALIX_LED2_PORT); - else - outl(ALIX_LED2_OFF, ALIX_LED2_PORT); -} - -static void alix_led_set_3(struct led_classdev *led_cdev, - enum led_brightness value) -{ - if (value) - outl(ALIX_LED3_ON, ALIX_LED3_PORT); - else - outl(ALIX_LED3_OFF, ALIX_LED3_PORT); -} - -static struct led_classdev alix_led_1 = { - .name = "alix:1", - .brightness_set = alix_led_set_1, -}; - -static struct led_classdev alix_led_2 = { - .name = "alix:2", - .brightness_set = alix_led_set_2, -}; - -static struct led_classdev alix_led_3 = { - .name = "alix:3", - .brightness_set = alix_led_set_3, -}; - - -#ifdef CONFIG_PM -static int alix_led_suspend(struct platform_device *dev, - pm_message_t state) -{ - led_classdev_suspend(&alix_led_1); - led_classdev_suspend(&alix_led_2); - led_classdev_suspend(&alix_led_3); - return 0; -} - -static int alix_led_resume(struct platform_device *dev) -{ - led_classdev_resume(&alix_led_1); - led_classdev_resume(&alix_led_2); - led_classdev_resume(&alix_led_3); - return 0; -} -#else -#define alix_led_suspend NULL -#define alix_led_resume NULL -#endif - -static int alix_led_probe(struct platform_device *pdev) -{ - int ret; - - ret = led_classdev_register(&pdev->dev, &alix_led_1); - if (ret >= 0) - { - ret = led_classdev_register(&pdev->dev, &alix_led_2); - if (ret >= 0) - { - ret = led_classdev_register(&pdev->dev, &alix_led_3); - if (ret < 0) - led_classdev_unregister(&alix_led_2); - } - if (ret < 0) - led_classdev_unregister(&alix_led_1); - } - return ret; -} - -static int alix_led_remove(struct platform_device *pdev) -{ - led_classdev_unregister(&alix_led_1); - led_classdev_unregister(&alix_led_2); - led_classdev_unregister(&alix_led_3); - return 0; -} - -static struct platform_driver alix_led_driver = { - .probe = alix_led_probe, - .remove = alix_led_remove, - .suspend = alix_led_suspend, - .resume = alix_led_resume, - .driver = { - .name = DRVNAME, - .owner = THIS_MODULE, - }, -}; - -static int __init alix_led_init(void) -{ - int ret; - - ret = platform_driver_register(&alix_led_driver); - if (ret < 0) - goto out; - - pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0); - if (IS_ERR(pdev)) { - ret = PTR_ERR(pdev); - platform_driver_unregister(&alix_led_driver); - goto out; - } - -out: - return ret; -} - -static void __exit alix_led_exit(void) -{ - platform_device_unregister(pdev); - platform_driver_unregister(&alix_led_driver); -} - -module_init(alix_led_init); -module_exit(alix_led_exit); - -MODULE_AUTHOR("Petr Liebman"); -MODULE_DESCRIPTION("PCEngines ALIX LED driver"); -MODULE_LICENSE("GPL"); - diff --git a/target/linux/generic-2.6/files/drivers/leds/ledtrig-default-on.c b/target/linux/generic-2.6/files/drivers/leds/ledtrig-default-on.c deleted file mode 100644 index 92995e4..0000000 --- a/target/linux/generic-2.6/files/drivers/leds/ledtrig-default-on.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * LED Kernel Default ON Trigger - * - * Copyright 2008 Nick Forbes <nick.forbes@incepta.com> - * - * Based on Richard Purdie's ledtrig-timer.c. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/leds.h> -#include "leds.h" - -static void defon_trig_activate(struct led_classdev *led_cdev) -{ - led_set_brightness(led_cdev, LED_FULL); -} - -static struct led_trigger defon_led_trigger = { - .name = "default-on", - .activate = defon_trig_activate, -}; - -static int __init defon_trig_init(void) -{ - return led_trigger_register(&defon_led_trigger); -} - -static void __exit defon_trig_exit(void) -{ - led_trigger_unregister(&defon_led_trigger); -} - -module_init(defon_trig_init); -module_exit(defon_trig_exit); - -MODULE_AUTHOR("Nick Forbes <nick.forbes@incepta.com>"); -MODULE_DESCRIPTION("Default-ON LED trigger"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c b/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c deleted file mode 100644 index cb47480..0000000 --- a/target/linux/generic-2.6/files/drivers/leds/ledtrig-morse.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * LED Morse Trigger - * - * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> - * - * This file was based on: drivers/led/ledtrig-timer.c - * Copyright 2005-2006 Openedhand Ltd. - * Author: Richard Purdie <rpurdie@openedhand.com> - * - * also based on the patch '[PATCH] 2.5.59 morse code panics' posted - * in the LKML by Tomas Szepe at Thu, 30 Jan 2003 - * Copyright (C) 2002 Andrew Rodland <arodland@noln.com> - * Copyright (C) 2003 Tomas Szepe <szepe@pinerecords.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - */ - -#include <linux/kernel.h> -#include <linux/version.h> -#include <linux/module.h> -#include <linux/jiffies.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/spinlock.h> -#include <linux/device.h> -#include <linux/sysdev.h> -#include <linux/timer.h> -#include <linux/ctype.h> -#include <linux/leds.h> - -#include "leds.h" - -#define MORSE_DELAY_BASE (HZ/2) - -#define MORSE_STATE_BLINK_START 0 -#define MORSE_STATE_BLINK_STOP 1 - -#define MORSE_DIT_LEN 1 -#define MORSE_DAH_LEN 3 -#define MORSE_SPACE_LEN 7 - -struct morse_trig_data { - unsigned long delay; - char *msg; - - unsigned char morse; - unsigned char state; - char *msgpos; - struct timer_list timer; -}; - -const unsigned char morsetable[] = { - 0122, 0, 0310, 0, 0, 0163, /* "#$%&' */ - 055, 0155, 0, 0, 0163, 0141, 0152, 0051, /* ()*+,-./ */ - 077, 076, 074, 070, 060, 040, 041, 043, 047, 057, /* 0-9 */ - 0107, 0125, 0, 0061, 0, 0114, 0, /* :;<=>?@ */ - 006, 021, 025, 011, 002, 024, 013, 020, 004, /* A-I */ - 036, 015, 022, 007, 005, 017, 026, 033, 012, /* J-R */ - 010, 003, 014, 030, 016, 031, 035, 023, /* S-Z */ - 0, 0, 0, 0, 0154 /* [\]^_ */ -}; - -static inline unsigned char tomorse(char c) { - if (c >= 'a' && c <= 'z') - c = c - 'a' + 'A'; - if (c >= '"' && c <= '_') { - return morsetable[c - '"']; - } else - return 0; -} - -static inline unsigned long dit_len(struct morse_trig_data *morse_data) -{ - return MORSE_DIT_LEN*morse_data->delay; -} - -static inline unsigned long dah_len(struct morse_trig_data *morse_data) -{ - return MORSE_DAH_LEN*morse_data->delay; -} - -static inline unsigned long space_len(struct morse_trig_data *morse_data) -{ - return MORSE_SPACE_LEN*morse_data->delay; -} - -static void morse_timer_function(unsigned long data) -{ - struct led_classdev *led_cdev = (struct led_classdev *)data; - struct morse_trig_data *morse_data = led_cdev->trigger_data; - unsigned long brightness = LED_OFF; - unsigned long delay = 0; - - if (!morse_data->msg) - goto set_led; - - switch (morse_data->state) { - case MORSE_STATE_BLINK_START: - /* Starting a new blink. We have a valid code in morse. */ - delay = (morse_data->morse & 001) ? dah_len(morse_data): - dit_len(morse_data); - brightness = LED_FULL; - morse_data->state = MORSE_STATE_BLINK_STOP; - morse_data->morse >>= 1; - break; - case MORSE_STATE_BLINK_STOP: - /* Coming off of a blink. */ - morse_data->state = MORSE_STATE_BLINK_START; - - if (morse_data->morse > 1) { - /* Not done yet, just a one-dit pause. */ - delay = dit_len(morse_data); - break; - } - - /* Get a new char, figure out how much space. */ - /* First time through */ - if (!morse_data->msgpos) - morse_data->msgpos = (char *)morse_data->msg; - - if (!*morse_data->msgpos) { - /* Repeating */ - morse_data->msgpos = (char *)morse_data->msg; - delay = space_len(morse_data); - } else { - /* Inter-letter space */ - delay = dah_len(morse_data); - } - - if (!(morse_data->morse = tomorse(*morse_data->msgpos))) { - delay = space_len(morse_data); - /* And get us back here */ - morse_data->state = MORSE_STATE_BLINK_STOP; - } - morse_data->msgpos++; - break; - } - - mod_timer(&morse_data->timer, jiffies + msecs_to_jiffies(delay)); - -set_led: - led_set_brightness(led_cdev, brightness); -} - -static ssize_t _morse_delay_show(struct led_classdev *led_cdev, char *buf) -{ - struct morse_trig_data *morse_data = led_cdev->trigger_data; - - sprintf(buf, "%lu\n", morse_data->delay); - - return strlen(buf) + 1; -} - -static ssize_t _morse_delay_store(struct led_classdev *led_cdev, - const char *buf, size_t size) -{ - struct morse_trig_data *morse_data = led_cdev->trigger_data; - char *after; - unsigned long state = simple_strtoul(buf, &after, 10); - size_t count = after - buf; - int ret = -EINVAL; - - if (*after && isspace(*after)) - count++; - - if (count == size) { - morse_data->delay = state; - mod_timer(&morse_data->timer, jiffies + 1); - ret = count; - } - - return ret; -} - -static ssize_t _morse_msg_show(struct led_classdev *led_cdev, char *buf) -{ - struct morse_trig_data *morse_data = led_cdev->trigger_data; - - if (!morse_data->msg) - sprintf(buf, "<none>\n"); - else - sprintf(buf, "%s\n", morse_data->msg); - - return strlen(buf) + 1; -} - -static ssize_t _morse_msg_store(struct led_classdev *led_cdev, - const char *buf, size_t size) -{ - struct morse_trig_data *morse_data = led_cdev->trigger_data; - char *m; - - m = kmalloc(size, GFP_KERNEL); - if (!m) - return -ENOMEM; - - memcpy(m,buf,size); - m[size]='\0'; - - if (morse_data->msg) - kfree(morse_data->msg); - - morse_data->msg = m; - morse_data->msgpos = NULL; - morse_data->state = MORSE_STATE_BLINK_STOP; - - mod_timer(&morse_data->timer, jiffies + 1); - - return size; -} - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,23) -static ssize_t morse_delay_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - - return _morse_delay_show(led_cdev, buf); -} - -static ssize_t morse_delay_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - - return _morse_delay_store(led_cdev, buf, size); -} - -static ssize_t morse_msg_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - - return _morse_msg_show(led_cdev, buf); -} - -static ssize_t morse_msg_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - - return _morse_msg_store(led_cdev, buf, size); -} - -static DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store); -static DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store); - -#define led_device_create_file(leddev, attr) \ - device_create_file(leddev->dev, &dev_attr_ ## attr) -#define led_device_remove_file(leddev, attr) \ - device_remove_file(leddev->dev, &dev_attr_ ## attr) - -#else -static ssize_t morse_delay_show(struct class_device *dev, char *buf) -{ - struct led_classdev *led_cdev = class_get_devdata(dev); - - return _morse_delay_show(led_cdev, buf); -} - -static ssize_t morse_delay_store(struct class_device *dev, const char *buf, - size_t size) -{ - struct led_classdev *led_cdev = class_get_devdata(dev); - - return _morse_delay_store(led_cdev, buf, size); -} - -static ssize_t morse_msg_show(struct class_device *dev, char *buf) -{ - struct led_classdev *led_cdev = class_get_devdata(dev); - - return _morse_msg_show(led_cdev, buf); -} - -static ssize_t morse_msg_store(struct class_device *dev, const char *buf, - size_t size) -{ - struct led_classdev *led_cdev = class_get_devdata(dev); - - return _morse_msg_store(led_cdev, buf, size); -} - -static CLASS_DEVICE_ATTR(delay, 0644, morse_delay_show, morse_delay_store); -static CLASS_DEVICE_ATTR(message, 0644, morse_msg_show, morse_msg_store); - -#define led_device_create_file(leddev, attr) \ - class_device_create_file(leddev->class_dev, &class_device_attr_ ## attr) -#define led_device_remove_file(leddev, attr) \ - class_device_remove_file(leddev->class_dev, &class_device_attr_ ## attr) - -#endif - -static void morse_trig_activate(struct led_classdev *led_cdev) -{ - struct morse_trig_data *morse_data; - int rc; - - morse_data = kzalloc(sizeof(*morse_data), GFP_KERNEL); - if (!morse_data) - return; - - morse_data->delay = MORSE_DELAY_BASE; - init_timer(&morse_data->timer); - morse_data->timer.function = morse_timer_function; - morse_data->timer.data = (unsigned long)led_cdev; - - rc = led_device_create_file(led_cdev, delay); - if (rc) goto err; - - rc = led_device_create_file(led_cdev, message); - if (rc) goto err_delay; - - led_cdev->trigger_data = morse_data; - - return; - -err_delay: - led_device_remove_file(led_cdev, delay); -err: - kfree(morse_data); -} - -static void morse_trig_deactivate(struct led_classdev *led_cdev) -{ - struct morse_trig_data *morse_data = led_cdev->trigger_data; - - if (!morse_data) - return; - - led_device_remove_file(led_cdev, message); - led_device_remove_file(led_cdev, delay); - - del_timer_sync(&morse_data->timer); - if (morse_data->msg) - kfree(morse_data->msg); - - kfree(morse_data); -} - -static struct led_trigger morse_led_trigger = { - .name = "morse", - .activate = morse_trig_activate, - .deactivate = morse_trig_deactivate, -}; - -static int __init morse_trig_init(void) -{ - return led_trigger_register(&morse_led_trigger); -} - -static void __exit morse_trig_exit(void) -{ - led_trigger_unregister(&morse_led_trigger); -} - -module_init(morse_trig_init); -module_exit(morse_trig_exit); - -MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>"); -MODULE_DESCRIPTION("Morse LED trigger"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/generic-2.6/files/drivers/leds/ledtrig-netdev.c b/target/linux/generic-2.6/files/drivers/leds/ledtrig-netdev.c deleted file mode 100644 index fac3571..0000000 --- a/target/linux/generic-2.6/files/drivers/leds/ledtrig-netdev.c +++ /dev/null @@ -1,451 +0,0 @@ -/* - * LED Kernel Netdev Trigger - * - * Toggles the LED to reflect the link and traffic state of a named net device - * - * Copyright 2007 Oliver Jowett <oliver@opencloud.com> - * - * Derived from ledtrig-timer.c which is: - * Copyright 2005-2006 Openedhand Ltd. - * Author: Richard Purdie <rpurdie@openedhand.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/jiffies.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/spinlock.h> -#include <linux/device.h> -#include <linux/sysdev.h> -#include <linux/netdevice.h> -#include <linux/timer.h> -#include <linux/ctype.h> -#include <linux/leds.h> -#include <linux/version.h> - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) -#include <net/net_namespace.h> -#endif - -#include "leds.h" - -/* - * Configurable sysfs attributes: - * - * device_name - network device name to monitor - * - * interval - duration of LED blink, in milliseconds - * - * mode - either "none" (LED is off) or a space separated list of one or more of: - * link: LED's normal state reflects whether the link is up (has carrier) or not - * tx: LED blinks on transmitted data - * rx: LED blinks on receive data - * - * Some suggestions: - * - * Simple link status LED: - * $ echo netdev >someled/trigger - * $ echo eth0 >someled/device_name - * $ echo link >someled/mode - * - * Ethernet-style link/activity LED: - * $ echo netdev >someled/trigger - * $ echo eth0 >someled/device_name - * $ echo "link tx rx" >someled/mode - * - * Modem-style tx/rx LEDs: - * $ echo netdev >led1/trigger - * $ echo ppp0 >led1/device_name - * $ echo tx >led1/mode - * $ echo netdev >led2/trigger - * $ echo ppp0 >led2/device_name - * $ echo rx >led2/mode - * - */ - -#define MODE_LINK 1 -#define MODE_TX 2 -#define MODE_RX 4 - -struct led_netdev_data { - rwlock_t lock; - - struct timer_list timer; - struct notifier_block notifier; - - struct led_classdev *led_cdev; - struct net_device *net_dev; - - char device_name[IFNAMSIZ]; - unsigned interval; - unsigned mode; - unsigned link_up; - unsigned last_activity; -}; - -static void set_baseline_state(struct led_netdev_data *trigger_data) -{ - if ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up) - led_set_brightness(trigger_data->led_cdev, LED_FULL); - else - led_set_brightness(trigger_data->led_cdev, LED_OFF); - - if ((trigger_data->mode & (MODE_TX | MODE_RX)) != 0 && trigger_data->link_up) - mod_timer(&trigger_data->timer, jiffies + trigger_data->interval); - else - del_timer(&trigger_data->timer); -} - -static ssize_t led_device_name_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - - read_lock(&trigger_data->lock); - sprintf(buf, "%s\n", trigger_data->device_name); - read_unlock(&trigger_data->lock); - - return strlen(buf) + 1; -} - -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) -extern struct net init_net; -#endif - -static ssize_t led_device_name_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - - if (size < 0 || size >= IFNAMSIZ) - return -EINVAL; - - write_lock(&trigger_data->lock); - - strcpy(trigger_data->device_name, buf); - if (size > 0 && trigger_data->device_name[size-1] == '\n') - trigger_data->device_name[size-1] = 0; - - if (trigger_data->device_name[0] != 0) { - /* check for existing device to update from */ -#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) - trigger_data->net_dev = dev_get_by_name(&init_net, trigger_data->device_name); -#else - trigger_data->net_dev = dev_get_by_name(trigger_data->device_name); -#endif - if (trigger_data->net_dev != NULL) - trigger_data->link_up = (dev_get_flags(trigger_data->net_dev) & IFF_LOWER_UP) != 0; - set_baseline_state(trigger_data); /* updates LEDs, may start timers */ - } - - write_unlock(&trigger_data->lock); - return size; -} - -static DEVICE_ATTR(device_name, 0644, led_device_name_show, led_device_name_store); - -static ssize_t led_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - - read_lock(&trigger_data->lock); - - if (trigger_data->mode == 0) { - strcpy(buf, "none\n"); - } else { - if (trigger_data->mode & MODE_LINK) - strcat(buf, "link "); - if (trigger_data->mode & MODE_TX) - strcat(buf, "tx "); - if (trigger_data->mode & MODE_RX) - strcat(buf, "rx "); - strcat(buf, "\n"); - } - - read_unlock(&trigger_data->lock); - - return strlen(buf)+1; -} - -static ssize_t led_mode_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - char copybuf[1024]; - int new_mode = -1; - char *p, *token; - - /* take a copy since we don't want to trash the inbound buffer when using strsep */ - strncpy(copybuf, buf, sizeof(copybuf)); - copybuf[1023] = 0; - p = copybuf; - - while ((token = strsep(&p, " \t\n")) != NULL) { - if (!*token) - continue; - - if (new_mode == -1) - new_mode = 0; - - if (!strcmp(token, "none")) - new_mode = 0; - else if (!strcmp(token, "tx")) - new_mode |= MODE_TX; - else if (!strcmp(token, "rx")) - new_mode |= MODE_RX; - else if (!strcmp(token, "link")) - new_mode |= MODE_LINK; - else - return -EINVAL; - } - - if (new_mode == -1) - return -EINVAL; - - write_lock(&trigger_data->lock); - trigger_data->mode = new_mode; - set_baseline_state(trigger_data); - write_unlock(&trigger_data->lock); - - return size; -} - -static DEVICE_ATTR(mode, 0644, led_mode_show, led_mode_store); - -static ssize_t led_interval_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - - read_lock(&trigger_data->lock); - sprintf(buf, "%u\n", jiffies_to_msecs(trigger_data->interval)); - read_unlock(&trigger_data->lock); - - return strlen(buf) + 1; -} - -static ssize_t led_interval_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) -{ - struct led_classdev *led_cdev = dev_get_drvdata(dev); - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - int ret = -EINVAL; - char *after; - unsigned long value = simple_strtoul(buf, &after, 10); - size_t count = after - buf; - - if (*after && isspace(*after)) - count++; - - /* impose some basic bounds on the timer interval */ - if (count == size && value >= 5 && value <= 10000) { - write_lock(&trigger_data->lock); - trigger_data->interval = msecs_to_jiffies(value); - set_baseline_state(trigger_data); // resets timer - write_unlock(&trigger_data->lock); - ret = count; - } - - return ret; -} - -static DEVICE_ATTR(interval, 0644, led_interval_show, led_interval_store); - -static int netdev_trig_notify(struct notifier_block *nb, - unsigned long evt, - void *dv) -{ - struct net_device *dev = dv; - struct led_netdev_data *trigger_data = container_of(nb, struct led_netdev_data, notifier); - - if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER) - return NOTIFY_DONE; - - write_lock(&trigger_data->lock); - - if (strcmp(dev->name, trigger_data->device_name)) - goto done; - - if (evt == NETDEV_REGISTER) { - if (trigger_data->net_dev != NULL) - dev_put(trigger_data->net_dev); - dev_hold(dev); - trigger_data->net_dev = dev; - trigger_data->link_up = 0; - goto done; - } - - if (evt == NETDEV_UNREGISTER && trigger_data->net_dev != NULL) { - dev_put(trigger_data->net_dev); - trigger_data->net_dev = NULL; - goto done; - } - - /* UP / DOWN / CHANGE */ - - trigger_data->link_up = (evt != NETDEV_DOWN && netif_carrier_ok(dev)); - set_baseline_state(trigger_data); - -done: - write_unlock(&trigger_data->lock); - return NOTIFY_DONE; -} - -/* here's the real work! */ -static void netdev_trig_timer(unsigned long arg) -{ - struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg; - struct net_device_stats *dev_stats; - unsigned new_activity; - - write_lock(&trigger_data->lock); - - if (!trigger_data->link_up || !trigger_data->net_dev || (trigger_data->mode & (MODE_TX | MODE_RX)) == 0) { - /* we don't need to do timer work, just reflect link state. */ - led_set_brightness(trigger_data->led_cdev, ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up) ? LED_FULL : LED_OFF); - goto no_restart; - } - - dev_stats = trigger_data->net_dev->get_stats(trigger_data->net_dev); - new_activity = - ((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) + - ((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0); - - if (trigger_data->mode & MODE_LINK) { - /* base state is ON (link present) */ - /* if there's no link, we don't get this far and the LED is off */ - - /* OFF -> ON always */ - /* ON -> OFF on activity */ - if (trigger_data->led_cdev->brightness == LED_OFF) { - led_set_brightness(trigger_data->led_cdev, LED_FULL); - } else if (trigger_data->last_activity != new_activity) { - led_set_brightness(trigger_data->led_cdev, LED_OFF); - } - } else { - /* base state is OFF */ - /* ON -> OFF always */ - /* OFF -> ON on activity */ - if (trigger_data->led_cdev->brightness == LED_FULL) { - led_set_brightness(trigger_data->led_cdev, LED_OFF); - } else if (trigger_data->last_activity != new_activity) { - led_set_brightness(trigger_data->led_cdev, LED_FULL); - } - } - - trigger_data->last_activity = new_activity; - mod_timer(&trigger_data->timer, jiffies + trigger_data->interval); - -no_restart: - write_unlock(&trigger_data->lock); -} - -static void netdev_trig_activate(struct led_classdev *led_cdev) -{ - struct led_netdev_data *trigger_data; - int rc; - - trigger_data = kzalloc(sizeof(struct led_netdev_data), GFP_KERNEL); - if (!trigger_data) - return; - - rwlock_init(&trigger_data->lock); - - trigger_data->notifier.notifier_call = netdev_trig_notify; - trigger_data->notifier.priority = 10; - - setup_timer(&trigger_data->timer, netdev_trig_timer, (unsigned long) trigger_data); - - trigger_data->led_cdev = led_cdev; - trigger_data->net_dev = NULL; - trigger_data->device_name[0] = 0; - - trigger_data->mode = 0; - trigger_data->interval = msecs_to_jiffies(50); - trigger_data->link_up = 0; - trigger_data->last_activity = 0; - - led_cdev->trigger_data = trigger_data; - - rc = device_create_file(led_cdev->dev, &dev_attr_device_name); - if (rc) - goto err_out; - rc = device_create_file(led_cdev->dev, &dev_attr_mode); - if (rc) - goto err_out_device_name; - rc = device_create_file(led_cdev->dev, &dev_attr_interval); - if (rc) - goto err_out_mode; - - register_netdevice_notifier(&trigger_data->notifier); - return; - -err_out_mode: - device_remove_file(led_cdev->dev, &dev_attr_mode); -err_out_device_name: - device_remove_file(led_cdev->dev, &dev_attr_device_name); -err_out: - led_cdev->trigger_data = NULL; - kfree(trigger_data); -} - -static void netdev_trig_deactivate(struct led_classdev *led_cdev) -{ - struct led_netdev_data *trigger_data = led_cdev->trigger_data; - - if (trigger_data) { - unregister_netdevice_notifier(&trigger_data->notifier); - - device_remove_file(led_cdev->dev, &dev_attr_device_name); - device_remove_file(led_cdev->dev, &dev_attr_mode); - device_remove_file(led_cdev->dev, &dev_attr_interval); - - write_lock(&trigger_data->lock); - - if (trigger_data->net_dev) { - dev_put(trigger_data->net_dev); - trigger_data->net_dev = NULL; - } - - write_unlock(&trigger_data->lock); - - del_timer_sync(&trigger_data->timer); - - kfree(trigger_data); - } -} - -static struct led_trigger netdev_led_trigger = { - .name = "netdev", - .activate = netdev_trig_activate, - .deactivate = netdev_trig_deactivate, -}; - -static int __init netdev_trig_init(void) -{ - return led_trigger_register(&netdev_led_trigger); -} - -static void __exit netdev_trig_exit(void) -{ - led_trigger_unregister(&netdev_led_trigger); -} - -module_init(netdev_trig_init); -module_exit(netdev_trig_exit); - -MODULE_AUTHOR("Oliver Jowett <oliver@opencloud.com>"); -MODULE_DESCRIPTION("Netdev LED trigger"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/generic-2.6/files/drivers/net/phy/swconfig.c b/target/linux/generic-2.6/files/drivers/net/phy/swconfig.c new file mode 100644 index 0000000..ade2842 --- /dev/null +++ b/target/linux/generic-2.6/files/drivers/net/phy/swconfig.c @@ -0,0 +1,872 @@ +/* + * swconfig.c: Switch configuration API + * + * Copyright (C) 2008 Felix Fietkau <nbd@openwrt.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/list.h> +#include <linux/if.h> +#include <linux/if_ether.h> +#include <linux/capability.h> +#include <linux/skbuff.h> +#include <linux/switch.h> + +//#define DEBUG 1 +#ifdef DEBUG +#define DPRINTF(format, ...) printk("%s: " format, __func__, ##__VA_ARGS__) +#else +#define DPRINTF(...) do {} while(0) +#endif + +MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>"); +MODULE_LICENSE("GPL"); + +static int swdev_id = 0; +static struct list_head swdevs; +static spinlock_t swdevs_lock = SPIN_LOCK_UNLOCKED; +struct swconfig_callback; + +struct swconfig_callback +{ + struct sk_buff *msg; + struct genlmsghdr *hdr; + struct genl_info *info; + int cmd; + + /* callback for filling in the message data */ + int (*fill)(struct swconfig_callback *cb, void *arg); + + /* callback for closing the message before sending it */ + int (*close)(struct swconfig_callback *cb, void *arg); + + struct nlattr *nest[4]; + int args[4]; +}; + +/* defaults */ + +static int +swconfig_get_vlan_ports(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val) +{ + int ret; + if (val->port_vlan >= dev->vlans) + return -EINVAL; + + if (!dev->get_vlan_ports) + return -EOPNOTSUPP; + + ret = dev->get_vlan_ports(dev, val); + printk("SET PORTS %d\n", val->len); + return ret; +} + +static int +swconfig_set_vlan_ports(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val) +{ + int i; + + if (val->port_vlan >= dev->vlans) + return -EINVAL; + + /* validate ports */ + if (val->len > dev->ports) + return -EINVAL; + + for (i = 0; i < val->len; i++) { + if (val->value.ports[i].id >= dev->ports) + return -EINVAL; + } + + if (!dev->set_vlan_ports) + return -EOPNOTSUPP; + + printk("SET PORTS %d\n", val->len); + return dev->set_vlan_ports(dev, val); +} + +static int +swconfig_apply_config(struct switch_dev *dev, struct switch_attr *attr, struct switch_val *val) +{ + /* don't complain if not supported by the switch driver */ + if (!dev->apply_config) + return 0; + + return dev->apply_config(dev); +} + + +enum global_defaults { + GLOBAL_APPLY, +}; + +enum vlan_defaults { + VLAN_PORTS, +}; + +enum port_defaults { + PORT_LINK, +}; + +static struct switch_attr default_global[] = { + [GLOBAL_APPLY] = { + .type = SWITCH_TYPE_NOVAL, + .name = "apply", + .description = "Activate changes in the hardware", + .set = swconfig_apply_config, + } +}; + +static struct switch_attr default_port[] = { + [PORT_LINK] = { + .type = SWITCH_TYPE_INT, + .name = "link", + .description = "Current link speed", + } +}; + +static struct switch_attr default_vlan[] = { + [VLAN_PORTS] = { + .type = SWITCH_TYPE_PORTS, + .name = "ports", + .description = "VLAN port mapping", + .set = swconfig_set_vlan_ports, + .get = swconfig_get_vlan_ports, + }, +}; + + +static void swconfig_defaults_init(struct switch_dev *dev) +{ + dev->def_global = 0; + dev->def_vlan = 0; + dev->def_port = 0; + + if (dev->get_vlan_ports || dev->set_vlan_ports) + set_bit(VLAN_PORTS, &dev->def_vlan); + + /* always present, can be no-op */ + set_bit(GLOBAL_APPLY, &dev->def_global); +} + + +static struct genl_family switch_fam = { + .id = GENL_ID_GENERATE, + .name = "switch", + .hdrsize = 0, + .version = 1, + .maxattr = SWITCH_ATTR_MAX, +}; + +static const struct nla_policy switch_policy[SWITCH_ATTR_MAX+1] = { + [SWITCH_ATTR_ID] = { .type = NLA_U32 }, + [SWITCH_ATTR_OP_ID] = { .type = NLA_U32 }, + [SWITCH_ATTR_OP_PORT] = { .type = NLA_U32 }, + [SWITCH_ATTR_OP_VLAN] = { .type = NLA_U32 }, + [SWITCH_ATTR_OP_VALUE_INT] = { .type = NLA_U32 }, + [SWITCH_ATTR_OP_VALUE_STR] = { .type = NLA_NUL_STRING }, + [SWITCH_ATTR_OP_VALUE_PORTS] = { .type = NLA_NESTED }, + [SWITCH_ATTR_TYPE] = { .type = NLA_U32 }, +}; + +static const struct nla_policy port_policy[SWITCH_PORT_ATTR_MAX+1] = { + [SWITCH_PORT_ID] = { .type = NLA_U32 }, + [SWITCH_PORT_FLAG_TAGGED] = { .type = NLA_FLAG }, +}; + +static inline void +swconfig_lock(void) +{ + spin_lock(&swdevs_lock); +} + +static inline void +swconfig_unlock(void) +{ + spin_unlock(&swdevs_lock); +} + +static struct switch_dev * +swconfig_get_dev(struct genl_info *info) +{ + struct switch_dev *dev = NULL; + struct switch_dev *p; + int id; + + if (!info->attrs[SWITCH_ATTR_ID]) + goto done; + + id = nla_get_u32(info->attrs[SWITCH_ATTR_ID]); + swconfig_lock(); + list_for_each_entry(p, &swdevs, dev_list) { + if (id != p->id) + continue; + + dev = p; + break; + } + if (dev) + spin_lock(&dev->lock); + else + DPRINTF("device %d not found\n", id); + swconfig_unlock(); +done: + return dev; +} + +static inline void +swconfig_put_dev(struct switch_dev *dev) +{ + spin_unlock(&dev->lock); +} + +static int +swconfig_dump_attr(struct swconfig_callback *cb, void *arg) +{ + struct switch_attr *op = arg; + struct genl_info *info = cb->info; + struct sk_buff *msg = cb->msg; + int id = cb->args[0]; + void *hdr; + + hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, &switch_fam, + NLM_F_MULTI, SWITCH_CMD_NEW_ATTR); + if (IS_ERR(hdr)) + return -1; + + NLA_PUT_U32(msg, SWITCH_ATTR_OP_ID, id); + NLA_PUT_U32(msg, SWITCH_ATTR_OP_TYPE, op->type); + NLA_PUT_STRING(msg, SWITCH_ATTR_OP_NAME, op->name); + if (op->description) + NLA_PUT_STRING(msg, SWITCH_ATTR_OP_DESCRIPTION, + op->description); + + return genlmsg_end(msg, hdr); +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +/* spread multipart messages across multiple message buffers */ +static int +swconfig_send_multipart(struct swconfig_callback *cb, void *arg) +{ + struct genl_info *info = cb->info; + int restart = 0; + int err; + + do { + if (!cb->msg) { + cb->msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (cb->msg == NULL) + goto error; + } + + if (!(cb->fill(cb, arg) < 0)) + break; + + /* fill failed, check if this was already the second attempt */ + if (restart) + goto error; + + /* try again in a new message, send the current one */ + restart = 1; + if (cb->close) { + if (cb->close(cb, arg) < 0) + goto error; + } + err = genlmsg_unicast(cb->msg, info->snd_pid); + cb->msg = NULL; + if (err < 0) + goto error; + + } while (restart); + + return 0; + +error: + if (cb->msg) + nlmsg_free(cb->msg); + return -1; +} + +static int +swconfig_list_attrs(struct sk_buff *skb, struct genl_info *info) +{ + struct genlmsghdr *hdr = nlmsg_data(info->nlhdr); + const struct switch_attrlist *alist; + struct switch_dev *dev; + struct swconfig_callback cb; + int err = -EINVAL; + int i; + + /* defaults */ + struct switch_attr *def_list; + unsigned long *def_active; + int n_def; + + dev = swconfig_get_dev(info); + if (!dev) + return -EINVAL; + + switch(hdr->cmd) { + case SWITCH_CMD_LIST_GLOBAL: + alist = &dev->attr_global; + def_list = default_global; + def_active = &dev->def_global; + n_def = ARRAY_SIZE(default_global); + break; + case SWITCH_CMD_LIST_VLAN: + alist = &dev->attr_vlan; + def_list = default_vlan; + def_active = &dev->def_vlan; + n_def = ARRAY_SIZE(default_vlan); + break; + case SWITCH_CMD_LIST_PORT: + alist = &dev->attr_port; + def_list = default_port; + def_active = &dev->def_port; + n_def = ARRAY_SIZE(default_port); + break; + default: + WARN_ON(1); + goto out; + } + + memset(&cb, 0, sizeof(cb)); + cb.info = info; + cb.fill = swconfig_dump_attr; + for (i = 0; i < alist->n_attr; i++) { + if (alist->attr[i].disabled) + continue; + cb.args[0] = i; + err = swconfig_send_multipart(&cb, &alist->attr[i]); + if (err < 0) + goto error; + } + + /* defaults */ + for (i = 0; i < n_def; i++) { + if (!test_bit(i, def_active)) + continue; + cb.args[0] = SWITCH_ATTR_DEFAULTS_OFFSET + i; + err = swconfig_send_multipart(&cb, &def_list[i]); + if (err < 0) + goto error; + } + swconfig_put_dev(dev); + + if (!cb.msg) + return 0; + + return genlmsg_unicast(cb.msg, info->snd_pid); + +error: + if (cb.msg) + nlmsg_free(cb.msg); +out: + swconfig_put_dev(dev); + return err; +} + +static struct switch_attr * +swconfig_lookup_attr(struct switch_dev *dev, struct genl_info *info, + struct switch_val *val) +{ + struct genlmsghdr *hdr = nlmsg_data(info->nlhdr); + const struct switch_attrlist *alist; + struct switch_attr *attr = NULL; + int attr_id; + + /* defaults */ + struct switch_attr *def_list; + unsigned long *def_active; + int n_def; + + if (!info->attrs[SWITCH_ATTR_OP_ID]) + goto done; + + switch(hdr->cmd) { + case SWITCH_CMD_SET_GLOBAL: + case SWITCH_CMD_GET_GLOBAL: + alist = &dev->attr_global; + def_list = default_global; + def_active = &dev->def_global; + n_def = ARRAY_SIZE(default_global); + break; + case SWITCH_CMD_SET_VLAN: + case SWITCH_CMD_GET_VLAN: + alist = &dev->attr_vlan; + def_list = default_vlan; + def_active = &dev->def_vlan; + n_def = ARRAY_SIZE(default_vlan); + if (!info->attrs[SWITCH_ATTR_OP_VLAN]) + goto done; + val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_VLAN]); + break; + case SWITCH_CMD_SET_PORT: + case SWITCH_CMD_GET_PORT: + alist = &dev->attr_port; + def_list = default_port; + def_active = &dev->def_port; + n_def = ARRAY_SIZE(default_port); + if (!info->attrs[SWITCH_ATTR_OP_PORT]) + goto done; + val->port_vlan = nla_get_u32(info->attrs[SWITCH_ATTR_OP_PORT]); + break; + default: + WARN_ON(1); + goto done; + } + + if (!alist) + goto done; + + attr_id = nla_get_u32(info->attrs[SWITCH_ATTR_OP_ID]); + if (attr_id >= SWITCH_ATTR_DEFAULTS_OFFSET) { + attr_id -= SWITCH_ATTR_DEFAULTS_OFFSET; + if (attr_id >= n_def) + goto done; + if (!test_bit(attr_id, def_active)) + goto done; + attr = &def_list[attr_id]; + } else { + if (attr_id >= alist->n_attr) + goto done; + attr = &alist->attr[attr_id]; + } + + if (attr->disabled) + attr = NULL; + +done: + if (!attr) + DPRINTF("attribute lookup failed\n"); + val->attr = attr; + return attr; +} + +static int +swconfig_parse_ports(struct sk_buff *msg, struct nlattr *head, + struct switch_val *val, int max) +{ + struct nlattr *nla; + int rem; + + val->len = 0; + nla_for_each_nested(nla, head, rem) { + struct nlattr *tb[SWITCH_PORT_ATTR_MAX+1]; + struct switch_port *port = &val->value.ports[val->len]; + + if (val->len >= max) + return -EINVAL; + + if (nla_parse_nested(tb, SWITCH_PORT_ATTR_MAX, nla, + port_policy)) + return -EINVAL; + + if (!tb[SWITCH_PORT_ID]) + return -EINVAL; + + port->id = nla_get_u32(tb[SWITCH_PORT_ID]); + if (tb[SWITCH_PORT_FLAG_TAGGED]) + port->flags |= (1 << SWITCH_PORT_FLAG_TAGGED); + val->len++; + } + + return 0; +} + +static int +swconfig_set_attr(struct sk_buff *skb, struct genl_info *info) +{ + struct switch_attr *attr; + struct switch_dev *dev; + struct switch_val val; + int err = -EINVAL; + + dev = swconfig_get_dev(info); + if (!dev) + return -EINVAL; + + memset(&val, 0, sizeof(val)); + attr = swconfig_lookup_attr(dev, info, &val); + if (!attr || !attr->set) + goto error; + + val.attr = attr; + switch(attr->type) { + case SWITCH_TYPE_NOVAL: + break; + case SWITCH_TYPE_INT: + if (!info->attrs[SWITCH_ATTR_OP_VALUE_INT]) + goto error; + val.value.i = + nla_get_u32(info->attrs[SWITCH_ATTR_OP_VALUE_INT]); + break; + case SWITCH_TYPE_STRING: + if (!info->attrs[SWITCH_ATTR_OP_VALUE_STR]) + goto error; + val.value.s = + nla_data(info->attrs[SWITCH_ATTR_OP_VALUE_STR]); + break; + case SWITCH_TYPE_PORTS: + val.value.ports = dev->portbuf; + memset(dev->portbuf, 0, + sizeof(struct switch_port) * dev->ports); + + /* TODO: implement multipart? */ + if (info->attrs[SWITCH_ATTR_OP_VALUE_PORTS]) { + err = swconfig_parse_ports(skb, + info->attrs[SWITCH_ATTR_OP_VALUE_PORTS], &val, dev->ports); + if (err < 0) + goto error; + } else { + val.len = 0; + err = 0; + } + break; + default: + goto error; + } + + err = attr->set(dev, attr, &val); +error: + swconfig_put_dev(dev); + return err; +} + +static int +swconfig_close_portlist(struct swconfig_callback *cb, void *arg) +{ + if (cb->nest[0]) + nla_nest_end(cb->msg, cb->nest[0]); + return 0; +} + +static int +swconfig_send_port(struct swconfig_callback *cb, void *arg) +{ + const struct switch_port *port = arg; + struct nlattr *p = NULL; + + if (!cb->nest[0]) { + cb->nest[0] = nla_nest_start(cb->msg, cb->cmd); + if (!cb->nest[0]) + return -1; + } + + p = nla_nest_start(cb->msg, SWITCH_ATTR_PORT); + if (!p) + goto error; + + NLA_PUT_U32(cb->msg, SWITCH_PORT_ID, port->id); + if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) + NLA_PUT_FLAG(cb->msg, SWITCH_PORT_FLAG_TAGGED); + + nla_nest_end(cb->msg, p); + return 0; + +nla_put_failure: + nla_nest_cancel(cb->msg, p); +error: + nla_nest_cancel(cb->msg, cb->nest[0]); + return -1; +} + +static int +swconfig_send_ports(struct sk_buff **msg, struct genl_info *info, int attr, + const struct switch_val *val) +{ + struct swconfig_callback cb; + int err = 0; + int i; + + if (!val->value.ports) + return -EINVAL; + + memset(&cb, 0, sizeof(cb)); + cb.cmd = attr; + cb.msg = *msg; + cb.info = info; + cb.fill = swconfig_send_port; + cb.close = swconfig_close_portlist; + + cb.nest[0] = nla_nest_start(cb.msg, cb.cmd); + for (i = 0; i < val->len; i++) { + err = swconfig_send_multipart(&cb, &val->value.ports[i]); + if (err) + goto done; + } + err = val->len; + swconfig_close_portlist(&cb, NULL); + *msg = cb.msg; + +done: + return err; +} + +static int +swconfig_get_attr(struct sk_buff *skb, struct genl_info *info) +{ + struct genlmsghdr *hdr = nlmsg_data(info->nlhdr); + struct switch_attr *attr; + struct switch_dev *dev; + struct sk_buff *msg = NULL; + struct switch_val val; + int err = -EINVAL; + int cmd = hdr->cmd; + + dev = swconfig_get_dev(info); + if (!dev) + return -EINVAL; + + memset(&val, 0, sizeof(val)); + attr = swconfig_lookup_attr(dev, info, &val); + if (!attr || !attr->get) + goto error_dev; + + if (attr->type == SWITCH_TYPE_PORTS) { + val.value.ports = dev->portbuf; + memset(dev->portbuf, 0, + sizeof(struct switch_port) * dev->ports); + } + + err = attr->get(dev, attr, &val); + if (err) + goto error; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + goto error; + + hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, &switch_fam, + 0, cmd); + if (IS_ERR(hdr)) + goto nla_put_failure; + + switch(attr->type) { + case SWITCH_TYPE_INT: + NLA_PUT_U32(msg, SWITCH_ATTR_OP_VALUE_INT, val.value.i); + break; + case SWITCH_TYPE_STRING: + NLA_PUT_STRING(msg, SWITCH_ATTR_OP_VALUE_STR, val.value.s); + break; + case SWITCH_TYPE_PORTS: + err = swconfig_send_ports(&msg, info, + SWITCH_ATTR_OP_VALUE_PORTS, &val); + if (err < 0) + goto nla_put_failure; + break; + default: + DPRINTF("invalid type in attribute\n"); + err = -EINVAL; + goto error; + } + err = genlmsg_end(msg, hdr); + if (err < 0) + goto nla_put_failure; + + swconfig_put_dev(dev); + return genlmsg_unicast(msg, info->snd_pid); + +nla_put_failure: + if (msg) + nlmsg_free(msg); +error_dev: + swconfig_put_dev(dev); +error: + if (!err) + err = -ENOMEM; + return err; +} + +static int +swconfig_send_switch(struct sk_buff *msg, u32 pid, u32 seq, int flags, + const struct switch_dev *dev) +{ + void *hdr; + + hdr = genlmsg_put(msg, pid, seq, &switch_fam, flags, + SWITCH_CMD_NEW_ATTR); + if (IS_ERR(hdr)) + return -1; + + NLA_PUT_U32(msg, SWITCH_ATTR_ID, dev->id); + NLA_PUT_STRING(msg, SWITCH_ATTR_NAME, dev->name); + NLA_PUT_STRING(msg, SWITCH_ATTR_DEV_NAME, dev->devname); + NLA_PUT_U32(msg, SWITCH_ATTR_VLANS, dev->vlans); + NLA_PUT_U32(msg, SWITCH_ATTR_PORTS, dev->ports); + + return genlmsg_end(msg, hdr); +nla_put_failure: + genlmsg_cancel(msg, hdr); + return -EMSGSIZE; +} + +static int swconfig_dump_switches(struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct switch_dev *dev; + int start = cb->args[0]; + int idx = 0; + + swconfig_lock(); + list_for_each_entry(dev, &swdevs, dev_list) { + if (++idx <= start) + continue; + if (swconfig_send_switch(skb, NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + dev) < 0) + break; + } + swconfig_unlock(); + cb->args[0] = idx; + + return skb->len; +} + +static int +swconfig_done(struct netlink_callback *cb) +{ + return 0; +} + +static struct genl_ops swconfig_ops[] = { + { + .cmd = SWITCH_CMD_LIST_GLOBAL, + .doit = swconfig_list_attrs, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_LIST_VLAN, + .doit = swconfig_list_attrs, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_LIST_PORT, + .doit = swconfig_list_attrs, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_GET_GLOBAL, + .doit = swconfig_get_attr, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_GET_VLAN, + .doit = swconfig_get_attr, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_GET_PORT, + .doit = swconfig_get_attr, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_SET_GLOBAL, + .doit = swconfig_set_attr, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_SET_VLAN, + .doit = swconfig_set_attr, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_SET_PORT, + .doit = swconfig_set_attr, + .policy = switch_policy, + }, + { + .cmd = SWITCH_CMD_GET_SWITCH, + .dumpit = swconfig_dump_switches, + .policy = switch_policy, + .done = swconfig_done, + } +}; + +int +register_switch(struct switch_dev *dev, struct net_device *netdev) +{ + INIT_LIST_HEAD(&dev->dev_list); + if (netdev) { + dev->netdev = netdev; + if (!dev->devname) + dev->devname = netdev->name; + } + BUG_ON(!dev->devname); + + if (dev->ports > 0) { + dev->portbuf = kzalloc(sizeof(struct switch_port) * dev->ports, + GFP_KERNEL); + if (!dev->portbuf) + return -ENOMEM; + } + dev->id = ++swdev_id; + swconfig_defaults_init(dev); + spin_lock_init(&dev->lock); + swconfig_lock(); + list_add(&dev->dev_list, &swdevs); + swconfig_unlock(); + + return 0; +} +EXPORT_SYMBOL_GPL(register_switch); + +void +unregister_switch(struct switch_dev *dev) +{ + kfree(dev->portbuf); + spin_lock(&dev->lock); + swconfig_lock(); + list_del(&dev->dev_list); + swconfig_unlock(); +} +EXPORT_SYMBOL_GPL(unregister_switch); + + +static int __init +swconfig_init(void) +{ + int i, err; + + INIT_LIST_HEAD(&swdevs); + err = genl_register_family(&switch_fam); + if (err) + return err; + + for (i = 0; i < ARRAY_SIZE(swconfig_ops); i++) { + err = genl_register_ops(&switch_fam, &swconfig_ops[i]); + if (err) + goto unregister; + } + + return 0; + +unregister: + genl_unregister_family(&switch_fam); + return err; +} + +static void __exit +swconfig_exit(void) +{ + genl_unregister_family(&switch_fam); +} + +module_init(swconfig_init); +module_exit(swconfig_exit); + diff --git a/target/linux/generic-2.6/files/drivers/spi/spi_gpio.c b/target/linux/generic-2.6/files/drivers/spi/spi_gpio.c deleted file mode 100644 index 31048ac..0000000 --- a/target/linux/generic-2.6/files/drivers/spi/spi_gpio.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * Bitbanging SPI bus driver using GPIO API - * - * Copyright (c) 2008 Piotr Skamruk - * Copyright (c) 2008 Michael Buesch - * - * based on spi_s3c2410_gpio.c - * Copyright (c) 2006 Ben Dooks - * Copyright (c) 2006 Simtec Electronics - * and on i2c-gpio.c - * Copyright (C) 2007 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/workqueue.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/spi/spi.h> -#include <linux/spi/spi_bitbang.h> -#include "linux/spi/spi_gpio.h" //XXX -#include <asm/gpio.h> - - -struct spi_gpio { - struct spi_bitbang bitbang; - struct spi_gpio_platform_data *info; - struct platform_device *pdev; - struct spi_board_info bi; -}; - - -static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev) -{ - return dev->controller_data; -} - -static inline void setsck(struct spi_device *dev, int val) -{ - struct spi_gpio *sp = spidev_to_sg(dev); - gpio_set_value(sp->info->pin_clk, val ? 1 : 0); -} - -static inline void setmosi(struct spi_device *dev, int val ) -{ - struct spi_gpio *sp = spidev_to_sg(dev); - gpio_set_value(sp->info->pin_mosi, val ? 1 : 0); -} - -static inline u32 getmiso(struct spi_device *dev) -{ - struct spi_gpio *sp = spidev_to_sg(dev); - return gpio_get_value(sp->info->pin_miso) ? 1 : 0; -} - -static inline void do_spidelay(struct spi_device *dev, unsigned nsecs) -{ - struct spi_gpio *sp = spidev_to_sg(dev); - - if (!sp->info->no_spi_delay) - ndelay(nsecs); -} - -#define spidelay(nsecs) do { \ - /* Steal the spi_device pointer from our caller. \ - * The bitbang-API should probably get fixed here... */ \ - do_spidelay(spi, nsecs); \ - } while (0) - -#define EXPAND_BITBANG_TXRX -#include <linux/spi/spi_bitbang.h> - -static u32 spi_gpio_txrx_mode0(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits) -{ - return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits); -} - -static u32 spi_gpio_txrx_mode1(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits) -{ - return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits); -} - -static u32 spi_gpio_txrx_mode2(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits) -{ - return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits); -} - -static u32 spi_gpio_txrx_mode3(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits) -{ - return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits); -} - -static void spi_gpio_chipselect(struct spi_device *dev, int on) -{ - struct spi_gpio *sp = spidev_to_sg(dev); - - if (sp->info->cs_activelow) - on = !on; - gpio_set_value(sp->info->pin_cs, on ? 1 : 0); -} - -static int spi_gpio_probe(struct platform_device *pdev) -{ - struct spi_master *master; - struct spi_gpio_platform_data *pdata; - struct spi_gpio *sp; - struct spi_device *spidev; - int err; - - pdata = pdev->dev.platform_data; - if (!pdata) - return -ENXIO; - - err = -ENOMEM; - master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio)); - if (!master) - goto err_alloc_master; - - sp = spi_master_get_devdata(master); - platform_set_drvdata(pdev, sp); - sp->info = pdata; - - err = gpio_request(pdata->pin_clk, "spi_clock"); - if (err) - goto err_request_clk; - err = gpio_request(pdata->pin_mosi, "spi_mosi"); - if (err) - goto err_request_mosi; - err = gpio_request(pdata->pin_miso, "spi_miso"); - if (err) - goto err_request_miso; - err = gpio_request(pdata->pin_cs, "spi_cs"); - if (err) - goto err_request_cs; - - sp->bitbang.master = spi_master_get(master); - sp->bitbang.master->bus_num = -1; - sp->bitbang.master->num_chipselect = 1; - sp->bitbang.chipselect = spi_gpio_chipselect; - sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0; - sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1; - sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2; - sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3; - - gpio_direction_output(pdata->pin_clk, 0); - gpio_direction_output(pdata->pin_mosi, 0); - gpio_direction_output(pdata->pin_cs, - pdata->cs_activelow ? 1 : 0); - gpio_direction_input(pdata->pin_miso); - - err = spi_bitbang_start(&sp->bitbang); - if (err) - goto err_no_bitbang; - err = pdata->boardinfo_setup(&sp->bi, master, - pdata->boardinfo_setup_data); - if (err) - goto err_bi_setup; - sp->bi.controller_data = sp; - spidev = spi_new_device(master, &sp->bi); - if (!spidev) - goto err_new_dev; - - return 0; - -err_new_dev: -err_bi_setup: - spi_bitbang_stop(&sp->bitbang); -err_no_bitbang: - spi_master_put(sp->bitbang.master); - gpio_free(pdata->pin_cs); -err_request_cs: - gpio_free(pdata->pin_miso); -err_request_miso: - gpio_free(pdata->pin_mosi); -err_request_mosi: - gpio_free(pdata->pin_clk); -err_request_clk: - kfree(master); - -err_alloc_master: - return err; -} - -static int __devexit spi_gpio_remove(struct platform_device *pdev) -{ - struct spi_gpio *sp; - struct spi_gpio_platform_data *pdata; - - pdata = pdev->dev.platform_data; - sp = platform_get_drvdata(pdev); - - gpio_free(pdata->pin_clk); - gpio_free(pdata->pin_mosi); - gpio_free(pdata->pin_miso); - gpio_free(pdata->pin_cs); - spi_bitbang_stop(&sp->bitbang); - spi_master_put(sp->bitbang.master); - - return 0; -} - -static struct platform_driver spi_gpio_driver = { - .driver = { - .name = "spi-gpio", - .owner = THIS_MODULE, - }, - .probe = spi_gpio_probe, - .remove = __devexit_p(spi_gpio_remove), -}; - -static int __init spi_gpio_init(void) -{ - int err; - - err = platform_driver_register(&spi_gpio_driver); - if (err) - printk(KERN_ERR "spi-gpio: register failed: %d\n", err); - - return err; -} -module_init(spi_gpio_init); - -static void __exit spi_gpio_exit(void) -{ - platform_driver_unregister(&spi_gpio_driver); -} -module_exit(spi_gpio_exit); - -MODULE_AUTHOR("Piot Skamruk <piotr.skamruk at gmail.com>"); -MODULE_AUTHOR("Michael Buesch"); -MODULE_DESCRIPTION("Platform independent GPIO bitbangling SPI driver"); -MODULE_LICENSE("GPL v2"); diff --git a/target/linux/generic-2.6/files/drivers/ssb/Kconfig b/target/linux/generic-2.6/files/drivers/ssb/Kconfig deleted file mode 100644 index d976660..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/Kconfig +++ /dev/null @@ -1,117 +0,0 @@ -menu "Sonics Silicon Backplane" - -config SSB_POSSIBLE - bool - depends on HAS_IOMEM - default y - -config SSB - tristate "Sonics Silicon Backplane support" - depends on SSB_POSSIBLE - help - Support for the Sonics Silicon Backplane bus. - You only need to enable this option, if you are - configuring a kernel for an embedded system with - this bus. - It will be auto-selected if needed in other - environments. - - The module will be called ssb. - - If unsure, say N. - -config SSB_PCIHOST_POSSIBLE - bool - depends on SSB && (PCI = y || PCI = SSB) - default y - -config SSB_PCIHOST - bool "Support for SSB on PCI-bus host" - depends on SSB_PCIHOST_POSSIBLE - default y - help - Support for a Sonics Silicon Backplane on top - of a PCI device. - - If unsure, say Y - -config SSB_PCMCIAHOST_POSSIBLE - bool - depends on SSB && (PCMCIA = y || PCMCIA = SSB) && EXPERIMENTAL - default y - -config SSB_PCMCIAHOST - bool "Support for SSB on PCMCIA-bus host (EXPERIMENTAL)" - depends on SSB_PCMCIAHOST_POSSIBLE - help - Support for a Sonics Silicon Backplane on top - of a PCMCIA device. - - If unsure, say N - -config SSB_SILENT - bool "No SSB kernel messages" - depends on SSB && EMBEDDED - help - This option turns off all Sonics Silicon Backplane printks. - Note that you won't be able to identify problems, once - messages are turned off. - This might only be desired for production kernels on - embedded devices to reduce the kernel size. - - Say N - -config SSB_DEBUG - bool "SSB debugging" - depends on SSB && !SSB_SILENT - help - This turns on additional runtime checks and debugging - messages. Turn this on for SSB troubleshooting. - - If unsure, say N - -config SSB_SERIAL - bool - depends on SSB - # ChipCommon and ExtIf serial support routines. - -config SSB_DRIVER_PCICORE_POSSIBLE - bool - depends on SSB_PCIHOST - default y - -config SSB_DRIVER_PCICORE - bool "SSB PCI core driver" - depends on SSB_DRIVER_PCICORE_POSSIBLE - help - Driver for the Sonics Silicon Backplane attached - Broadcom PCI core. - - If unsure, say Y - -config SSB_PCICORE_HOSTMODE - bool "Hostmode support for SSB PCI core (EXPERIMENTAL)" - depends on SSB_DRIVER_PCICORE && SSB_DRIVER_MIPS && EXPERIMENTAL - help - PCIcore hostmode operation (external PCI bus). - -config SSB_DRIVER_MIPS - bool "SSB Broadcom MIPS core driver (EXPERIMENTAL)" - depends on SSB && MIPS && EXPERIMENTAL - select SSB_SERIAL - help - Driver for the Sonics Silicon Backplane attached - Broadcom MIPS core. - - If unsure, say N - -config SSB_DRIVER_EXTIF - bool "SSB Broadcom EXTIF core driver (EXPERIMENTAL)" - depends on SSB_DRIVER_MIPS && EXPERIMENTAL - help - Driver for the Sonics Silicon Backplane attached - Broadcom EXTIF core. - - If unsure, say N - -endmenu diff --git a/target/linux/generic-2.6/files/drivers/ssb/Makefile b/target/linux/generic-2.6/files/drivers/ssb/Makefile deleted file mode 100644 index 7be3975..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/Makefile +++ /dev/null @@ -1,18 +0,0 @@ -# core -ssb-y += main.o scan.o - -# host support -ssb-$(CONFIG_SSB_PCIHOST) += pci.o pcihost_wrapper.o -ssb-$(CONFIG_SSB_PCMCIAHOST) += pcmcia.o - -# built-in drivers -ssb-y += driver_chipcommon.o -ssb-$(CONFIG_SSB_DRIVER_MIPS) += driver_mipscore.o -ssb-$(CONFIG_SSB_DRIVER_EXTIF) += driver_extif.o -ssb-$(CONFIG_SSB_DRIVER_PCICORE) += driver_pcicore.o - -# b43 pci-ssb-bridge driver -# Not strictly a part of SSB, but kept here for convenience -ssb-$(CONFIG_SSB_PCIHOST) += b43_pci_bridge.o - -obj-$(CONFIG_SSB) += ssb.o diff --git a/target/linux/generic-2.6/files/drivers/ssb/b43_pci_bridge.c b/target/linux/generic-2.6/files/drivers/ssb/b43_pci_bridge.c deleted file mode 100644 index 2d27d6d..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/b43_pci_bridge.c +++ /dev/null @@ -1,50 +0,0 @@ -/* - * Broadcom 43xx PCI-SSB bridge module - * - * This technically is a separate PCI driver module, but - * because of its small size we include it in the SSB core - * instead of creating a standalone module. - * - * Copyright 2007 Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/pci.h> -#include <linux/ssb/ssb.h> - -#include "ssb_private.h" - - -static const struct pci_device_id b43_pci_bridge_tbl[] = { - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4301) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4307) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4311) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4312) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4318) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4319) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4320) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4321) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4324) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4325) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4328) }, - { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4329) }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, b43_pci_bridge_tbl); - -static struct pci_driver b43_pci_bridge_driver = { - .name = "b43-pci-bridge", - .id_table = b43_pci_bridge_tbl, -}; - - -int __init b43_pci_ssb_bridge_init(void) -{ - return ssb_pcihost_register(&b43_pci_bridge_driver); -} - -void __exit b43_pci_ssb_bridge_exit(void) -{ - ssb_pcihost_unregister(&b43_pci_bridge_driver); -} diff --git a/target/linux/generic-2.6/files/drivers/ssb/driver_chipcommon.c b/target/linux/generic-2.6/files/drivers/ssb/driver_chipcommon.c deleted file mode 100644 index 6fbf1c5..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/driver_chipcommon.c +++ /dev/null @@ -1,445 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom ChipCommon core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/ssb/ssb.h> -#include <linux/ssb/ssb_regs.h> -#include <linux/pci.h> - -#include "ssb_private.h" - - -/* Clock sources */ -enum ssb_clksrc { - /* PCI clock */ - SSB_CHIPCO_CLKSRC_PCI, - /* Crystal slow clock oscillator */ - SSB_CHIPCO_CLKSRC_XTALOS, - /* Low power oscillator */ - SSB_CHIPCO_CLKSRC_LOPWROS, -}; - - -static inline u32 chipco_read32(struct ssb_chipcommon *cc, - u16 offset) -{ - return ssb_read32(cc->dev, offset); -} - -static inline void chipco_write32(struct ssb_chipcommon *cc, - u16 offset, - u32 value) -{ - ssb_write32(cc->dev, offset, value); -} - -static inline void chipco_write32_masked(struct ssb_chipcommon *cc, u16 offset, - u32 mask, u32 value) -{ - value &= mask; - value |= chipco_read32(cc, offset) & ~mask; - chipco_write32(cc, offset, value); -} - -void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc, - enum ssb_clkmode mode) -{ - struct ssb_device *ccdev = cc->dev; - struct ssb_bus *bus; - u32 tmp; - - if (!ccdev) - return; - bus = ccdev->bus; - /* chipcommon cores prior to rev6 don't support dynamic clock control */ - if (ccdev->id.revision < 6) - return; - /* chipcommon cores rev10 are a whole new ball game */ - if (ccdev->id.revision >= 10) - return; - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - switch (mode) { - case SSB_CLKMODE_SLOW: - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp |= SSB_CHIPCO_SLOWCLKCTL_FSLOW; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - break; - case SSB_CLKMODE_FAST: - ssb_pci_xtal(bus, SSB_GPIO_XTAL, 1); /* Force crystal on */ - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; - tmp |= SSB_CHIPCO_SLOWCLKCTL_IPLL; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - break; - case SSB_CLKMODE_DYNAMIC: - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_FSLOW; - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_IPLL; - tmp &= ~SSB_CHIPCO_SLOWCLKCTL_ENXTAL; - if ((tmp & SSB_CHIPCO_SLOWCLKCTL_SRC) != SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL) - tmp |= SSB_CHIPCO_SLOWCLKCTL_ENXTAL; - chipco_write32(cc, SSB_CHIPCO_SLOWCLKCTL, tmp); - - /* for dynamic control, we have to release our xtal_pu "force on" */ - if (tmp & SSB_CHIPCO_SLOWCLKCTL_ENXTAL) - ssb_pci_xtal(bus, SSB_GPIO_XTAL, 0); - break; - default: - SSB_WARN_ON(1); - } -} - -/* Get the Slow Clock Source */ -static enum ssb_clksrc chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc) -{ - struct ssb_bus *bus = cc->dev->bus; - u32 uninitialized_var(tmp); - - if (cc->dev->id.revision < 6) { - if (bus->bustype == SSB_BUSTYPE_SSB || - bus->bustype == SSB_BUSTYPE_PCMCIA) - return SSB_CHIPCO_CLKSRC_XTALOS; - if (bus->bustype == SSB_BUSTYPE_PCI) { - pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp); - if (tmp & 0x10) - return SSB_CHIPCO_CLKSRC_PCI; - return SSB_CHIPCO_CLKSRC_XTALOS; - } - } - if (cc->dev->id.revision < 10) { - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - tmp &= 0x7; - if (tmp == 0) - return SSB_CHIPCO_CLKSRC_LOPWROS; - if (tmp == 1) - return SSB_CHIPCO_CLKSRC_XTALOS; - if (tmp == 2) - return SSB_CHIPCO_CLKSRC_PCI; - } - - return SSB_CHIPCO_CLKSRC_XTALOS; -} - -/* Get maximum or minimum (depending on get_max flag) slowclock frequency. */ -static int chipco_pctl_clockfreqlimit(struct ssb_chipcommon *cc, int get_max) -{ - int uninitialized_var(limit); - enum ssb_clksrc clocksrc; - int divisor = 1; - u32 tmp; - - clocksrc = chipco_pctl_get_slowclksrc(cc); - if (cc->dev->id.revision < 6) { - switch (clocksrc) { - case SSB_CHIPCO_CLKSRC_PCI: - divisor = 64; - break; - case SSB_CHIPCO_CLKSRC_XTALOS: - divisor = 32; - break; - default: - SSB_WARN_ON(1); - } - } else if (cc->dev->id.revision < 10) { - switch (clocksrc) { - case SSB_CHIPCO_CLKSRC_LOPWROS: - break; - case SSB_CHIPCO_CLKSRC_XTALOS: - case SSB_CHIPCO_CLKSRC_PCI: - tmp = chipco_read32(cc, SSB_CHIPCO_SLOWCLKCTL); - divisor = (tmp >> 16) + 1; - divisor *= 4; - break; - } - } else { - tmp = chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL); - divisor = (tmp >> 16) + 1; - divisor *= 4; - } - - switch (clocksrc) { - case SSB_CHIPCO_CLKSRC_LOPWROS: - if (get_max) - limit = 43000; - else - limit = 25000; - break; - case SSB_CHIPCO_CLKSRC_XTALOS: - if (get_max) - limit = 20200000; - else - limit = 19800000; - break; - case SSB_CHIPCO_CLKSRC_PCI: - if (get_max) - limit = 34000000; - else - limit = 25000000; - break; - } - limit /= divisor; - - return limit; -} - -static void chipco_powercontrol_init(struct ssb_chipcommon *cc) -{ - struct ssb_bus *bus = cc->dev->bus; - - if (bus->chip_id == 0x4321) { - if (bus->chip_rev == 0) - chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0x3A4); - else if (bus->chip_rev == 1) - chipco_write32(cc, SSB_CHIPCO_CHIPCTL, 0xA4); - } - - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - if (cc->dev->id.revision >= 10) { - /* Set Idle Power clock rate to 1Mhz */ - chipco_write32(cc, SSB_CHIPCO_SYSCLKCTL, - (chipco_read32(cc, SSB_CHIPCO_SYSCLKCTL) & - 0x0000FFFF) | 0x00040000); - } else { - int maxfreq; - - maxfreq = chipco_pctl_clockfreqlimit(cc, 1); - chipco_write32(cc, SSB_CHIPCO_PLLONDELAY, - (maxfreq * 150 + 999999) / 1000000); - chipco_write32(cc, SSB_CHIPCO_FREFSELDELAY, - (maxfreq * 15 + 999999) / 1000000); - } -} - -static void calc_fast_powerup_delay(struct ssb_chipcommon *cc) -{ - struct ssb_bus *bus = cc->dev->bus; - int minfreq; - unsigned int tmp; - u32 pll_on_delay; - - if (bus->bustype != SSB_BUSTYPE_PCI) - return; - if (!(cc->capabilities & SSB_CHIPCO_CAP_PCTL)) - return; - - minfreq = chipco_pctl_clockfreqlimit(cc, 0); - pll_on_delay = chipco_read32(cc, SSB_CHIPCO_PLLONDELAY); - tmp = (((pll_on_delay + 2) * 1000000) + (minfreq - 1)) / minfreq; - SSB_WARN_ON(tmp & ~0xFFFF); - - cc->fast_pwrup_delay = tmp; -} - -void ssb_chipcommon_init(struct ssb_chipcommon *cc) -{ - if (!cc->dev) - return; /* We don't have a ChipCommon */ - chipco_powercontrol_init(cc); - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); - calc_fast_powerup_delay(cc); -} - -void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state) -{ - if (!cc->dev) - return; - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW); -} - -void ssb_chipco_resume(struct ssb_chipcommon *cc) -{ - if (!cc->dev) - return; - chipco_powercontrol_init(cc); - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST); -} - -/* Get the processor clock */ -void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, - u32 *plltype, u32 *n, u32 *m) -{ - *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N); - *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); - switch (*plltype) { - case SSB_PLLTYPE_2: - case SSB_PLLTYPE_4: - case SSB_PLLTYPE_6: - case SSB_PLLTYPE_7: - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS); - break; - case SSB_PLLTYPE_3: - /* 5350 uses m2 to control mips */ - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2); - break; - default: - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB); - break; - } -} - -/* Get the bus clock */ -void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, - u32 *plltype, u32 *n, u32 *m) -{ - *n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N); - *plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); - switch (*plltype) { - case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS); - break; - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - if (cc->dev->bus->chip_id != 0x5365) { - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2); - break; - } - /* Fallthough */ - default: - *m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB); - } -} - -void ssb_chipco_timing_init(struct ssb_chipcommon *cc, - unsigned long ns) -{ - struct ssb_device *dev = cc->dev; - struct ssb_bus *bus = dev->bus; - u32 tmp; - - /* set register for external IO to control LED. */ - chipco_write32(cc, SSB_CHIPCO_PROG_CFG, 0x11); - tmp = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */ - tmp |= DIV_ROUND_UP(40, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 40ns */ - tmp |= DIV_ROUND_UP(240, ns); /* Waitcount-0 = 240ns */ - chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */ - - /* Set timing for the flash */ - tmp = DIV_ROUND_UP(10, ns) << SSB_FLASH_WCNT_3_SHIFT; /* Waitcount-3 = 10nS */ - tmp |= DIV_ROUND_UP(10, ns) << SSB_FLASH_WCNT_1_SHIFT; /* Waitcount-1 = 10nS */ - tmp |= DIV_ROUND_UP(120, ns); /* Waitcount-0 = 120nS */ - if ((bus->chip_id == 0x5365) || - (dev->id.revision < 9)) - chipco_write32(cc, SSB_CHIPCO_FLASH_WAITCNT, tmp); - if ((bus->chip_id == 0x5365) || - (dev->id.revision < 9) || - ((bus->chip_id == 0x5350) && (bus->chip_rev == 0))) - chipco_write32(cc, SSB_CHIPCO_PCMCIA_MEMWAIT, tmp); - - if (bus->chip_id == 0x5350) { - /* Enable EXTIF */ - tmp = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT; /* Waitcount-3 = 10ns */ - tmp |= DIV_ROUND_UP(20, ns) << SSB_PROG_WCNT_2_SHIFT; /* Waitcount-2 = 20ns */ - tmp |= DIV_ROUND_UP(100, ns) << SSB_PROG_WCNT_1_SHIFT; /* Waitcount-1 = 100ns */ - tmp |= DIV_ROUND_UP(120, ns); /* Waitcount-0 = 120ns */ - chipco_write32(cc, SSB_CHIPCO_PROG_WAITCNT, tmp); /* 0x01020a0c for a 100Mhz clock */ - } -} - -/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */ -void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks) -{ - /* instant NMI */ - chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks); -} - -u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc, u32 mask) -{ - return chipco_read32(cc, SSB_CHIPCO_GPIOIN) & mask; -} - -void ssb_chipco_gpio_out(struct ssb_chipcommon *cc, u32 mask, u32 value) -{ - chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUT, mask, value); -} - -void ssb_chipco_gpio_outen(struct ssb_chipcommon *cc, u32 mask, u32 value) -{ - chipco_write32_masked(cc, SSB_CHIPCO_GPIOOUTEN, mask, value); -} - -#ifdef CONFIG_SSB_SERIAL -int ssb_chipco_serial_init(struct ssb_chipcommon *cc, - struct ssb_serial_port *ports) -{ - struct ssb_bus *bus = cc->dev->bus; - int nr_ports = 0; - u32 plltype; - unsigned int irq; - u32 baud_base, div; - u32 i, n; - - plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT); - irq = ssb_mips_irq(cc->dev); - - if (plltype == SSB_PLLTYPE_1) { - /* PLL clock */ - baud_base = ssb_calc_clock_rate(plltype, - chipco_read32(cc, SSB_CHIPCO_CLOCK_N), - chipco_read32(cc, SSB_CHIPCO_CLOCK_M2)); - div = 1; - } else { - if (cc->dev->id.revision >= 11) { - /* Fixed ALP clock */ - baud_base = 20000000; - div = 1; - /* Set the override bit so we don't divide it */ - chipco_write32(cc, SSB_CHIPCO_CORECTL, - SSB_CHIPCO_CORECTL_UARTCLK0); - } else if (cc->dev->id.revision >= 3) { - /* Internal backplane clock */ - baud_base = ssb_clockspeed(bus); - div = chipco_read32(cc, SSB_CHIPCO_CLKDIV) - & SSB_CHIPCO_CLKDIV_UART; - } else { - /* Fixed internal backplane clock */ - baud_base = 88000000; - div = 48; - } - - /* Clock source depends on strapping if UartClkOverride is unset */ - if ((cc->dev->id.revision > 0) && - !(chipco_read32(cc, SSB_CHIPCO_CORECTL) & SSB_CHIPCO_CORECTL_UARTCLK0)) { - if ((cc->capabilities & SSB_CHIPCO_CAP_UARTCLK) == - SSB_CHIPCO_CAP_UARTCLK_INT) { - /* Internal divided backplane clock */ - baud_base /= div; - } else { - /* Assume external clock of 1.8432 MHz */ - baud_base = 1843200; - } - } - } - - /* Determine the registers of the UARTs */ - n = (cc->capabilities & SSB_CHIPCO_CAP_NRUART); - for (i = 0; i < n; i++) { - void __iomem *cc_mmio; - void __iomem *uart_regs; - - cc_mmio = cc->dev->bus->mmio + (cc->dev->core_index * SSB_CORE_SIZE); - uart_regs = cc_mmio + SSB_CHIPCO_UART0_DATA; - /* Offset changed at after rev 0 */ - if (cc->dev->id.revision == 0) - uart_regs += (i * 8); - else - uart_regs += (i * 256); - - nr_ports++; - ports[i].regs = uart_regs; - ports[i].irq = irq; - ports[i].baud_base = baud_base; - ports[i].reg_shift = 0; - } - - return nr_ports; -} -#endif /* CONFIG_SSB_SERIAL */ diff --git a/target/linux/generic-2.6/files/drivers/ssb/driver_extif.c b/target/linux/generic-2.6/files/drivers/ssb/driver_extif.c deleted file mode 100644 index fe55eb8..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/driver_extif.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom EXTIF core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> - * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org> - * Copyright 2007, Aurelien Jarno <aurelien@aurel32.net> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/serial.h> -#include <linux/serial_core.h> -#include <linux/serial_reg.h> - -#include "ssb_private.h" - - -static inline u32 extif_read32(struct ssb_extif *extif, u16 offset) -{ - return ssb_read32(extif->dev, offset); -} - -static inline void extif_write32(struct ssb_extif *extif, u16 offset, u32 value) -{ - ssb_write32(extif->dev, offset, value); -} - -static inline void extif_write32_masked(struct ssb_extif *extif, u16 offset, - u32 mask, u32 value) -{ - value &= mask; - value |= extif_read32(extif, offset) & ~mask; - extif_write32(extif, offset, value); -} - -#ifdef CONFIG_SSB_SERIAL -static bool serial_exists(u8 *regs) -{ - u8 save_mcr, msr = 0; - - if (regs) { - save_mcr = regs[UART_MCR]; - regs[UART_MCR] = (UART_MCR_LOOP | UART_MCR_OUT2 | UART_MCR_RTS); - msr = regs[UART_MSR] & (UART_MSR_DCD | UART_MSR_RI - | UART_MSR_CTS | UART_MSR_DSR); - regs[UART_MCR] = save_mcr; - } - return (msr == (UART_MSR_DCD | UART_MSR_CTS)); -} - -int ssb_extif_serial_init(struct ssb_extif *extif, struct ssb_serial_port *ports) -{ - u32 i, nr_ports = 0; - - /* Disable GPIO interrupt initially */ - extif_write32(extif, SSB_EXTIF_GPIO_INTPOL, 0); - extif_write32(extif, SSB_EXTIF_GPIO_INTMASK, 0); - - for (i = 0; i < 2; i++) { - void __iomem *uart_regs; - - uart_regs = ioremap_nocache(SSB_EUART, 16); - if (uart_regs) { - uart_regs += (i * 8); - - if (serial_exists(uart_regs) && ports) { - extif_write32(extif, SSB_EXTIF_GPIO_INTMASK, 2); - - nr_ports++; - ports[i].regs = uart_regs; - ports[i].irq = 2; - ports[i].baud_base = 13500000; - ports[i].reg_shift = 0; - } - iounmap(uart_regs); - } - } - return nr_ports; -} -#endif /* CONFIG_SSB_SERIAL */ - -void ssb_extif_timing_init(struct ssb_extif *extif, unsigned long ns) -{ - u32 tmp; - - /* Initialize extif so we can get to the LEDs and external UART */ - extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN); - - /* Set timing for the flash */ - tmp = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT; - tmp |= DIV_ROUND_UP(40, ns) << SSB_PROG_WCNT_1_SHIFT; - tmp |= DIV_ROUND_UP(120, ns); - extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp); - - /* Set programmable interface timing for external uart */ - tmp = DIV_ROUND_UP(10, ns) << SSB_PROG_WCNT_3_SHIFT; - tmp |= DIV_ROUND_UP(20, ns) << SSB_PROG_WCNT_2_SHIFT; - tmp |= DIV_ROUND_UP(100, ns) << SSB_PROG_WCNT_1_SHIFT; - tmp |= DIV_ROUND_UP(120, ns); - extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp); -} - -void ssb_extif_get_clockcontrol(struct ssb_extif *extif, - u32 *pll_type, u32 *n, u32 *m) -{ - *pll_type = SSB_PLLTYPE_1; - *n = extif_read32(extif, SSB_EXTIF_CLOCK_N); - *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB); -} - -u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask) -{ - return extif_read32(extif, SSB_EXTIF_GPIO_IN) & mask; -} - -void ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value) -{ - return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUT(0), - mask, value); -} - -void ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value) -{ - return extif_write32_masked(extif, SSB_EXTIF_GPIO_OUTEN(0), - mask, value); -} - diff --git a/target/linux/generic-2.6/files/drivers/ssb/driver_mipscore.c b/target/linux/generic-2.6/files/drivers/ssb/driver_mipscore.c deleted file mode 100644 index a9e7eb4..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/driver_mipscore.c +++ /dev/null @@ -1,225 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom MIPS core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/ssb/ssb.h> - -#include <linux/serial.h> -#include <linux/serial_core.h> -#include <linux/serial_reg.h> -#include <linux/time.h> - -#include "ssb_private.h" - - -static inline u32 mips_read32(struct ssb_mipscore *mcore, - u16 offset) -{ - return ssb_read32(mcore->dev, offset); -} - -static inline void mips_write32(struct ssb_mipscore *mcore, - u16 offset, - u32 value) -{ - ssb_write32(mcore->dev, offset, value); -} - -static const u32 ipsflag_irq_mask[] = { - 0, - SSB_IPSFLAG_IRQ1, - SSB_IPSFLAG_IRQ2, - SSB_IPSFLAG_IRQ3, - SSB_IPSFLAG_IRQ4, -}; - -static const u32 ipsflag_irq_shift[] = { - 0, - SSB_IPSFLAG_IRQ1_SHIFT, - SSB_IPSFLAG_IRQ2_SHIFT, - SSB_IPSFLAG_IRQ3_SHIFT, - SSB_IPSFLAG_IRQ4_SHIFT, -}; - -static inline u32 ssb_irqflag(struct ssb_device *dev) -{ - return ssb_read32(dev, SSB_TPSFLAG) & SSB_TPSFLAG_BPFLAG; -} - -/* Get the MIPS IRQ assignment for a specified device. - * If unassigned, 0 is returned. - */ -unsigned int ssb_mips_irq(struct ssb_device *dev) -{ - struct ssb_bus *bus = dev->bus; - u32 irqflag; - u32 ipsflag; - u32 tmp; - unsigned int irq; - - irqflag = ssb_irqflag(dev); - ipsflag = ssb_read32(bus->mipscore.dev, SSB_IPSFLAG); - for (irq = 1; irq <= 4; irq++) { - tmp = ((ipsflag & ipsflag_irq_mask[irq]) >> ipsflag_irq_shift[irq]); - if (tmp == irqflag) - break; - } - if (irq == 5) - irq = 0; - - return irq; -} - -static void clear_irq(struct ssb_bus *bus, unsigned int irq) -{ - struct ssb_device *dev = bus->mipscore.dev; - - /* Clear the IRQ in the MIPScore backplane registers */ - if (irq == 0) { - ssb_write32(dev, SSB_INTVEC, 0); - } else { - ssb_write32(dev, SSB_IPSFLAG, - ssb_read32(dev, SSB_IPSFLAG) | - ipsflag_irq_mask[irq]); - } -} - -static void set_irq(struct ssb_device *dev, unsigned int irq) -{ - unsigned int oldirq = ssb_mips_irq(dev); - struct ssb_bus *bus = dev->bus; - struct ssb_device *mdev = bus->mipscore.dev; - u32 irqflag = ssb_irqflag(dev); - - dev->irq = irq + 2; - - ssb_dprintk(KERN_INFO PFX - "set_irq: core 0x%04x, irq %d => %d\n", - dev->id.coreid, oldirq, irq); - /* clear the old irq */ - if (oldirq == 0) - ssb_write32(mdev, SSB_INTVEC, (~(1 << irqflag) & ssb_read32(mdev, SSB_INTVEC))); - else - clear_irq(bus, oldirq); - - /* assign the new one */ - if (irq == 0) { - ssb_write32(mdev, SSB_INTVEC, ((1 << irqflag) | ssb_read32(mdev, SSB_INTVEC))); - } else { - irqflag <<= ipsflag_irq_shift[irq]; - irqflag |= (ssb_read32(mdev, SSB_IPSFLAG) & ~ipsflag_irq_mask[irq]); - ssb_write32(mdev, SSB_IPSFLAG, irqflag); - } -} - -static void ssb_mips_serial_init(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - - if (bus->extif.dev) - mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports); - else if (bus->chipco.dev) - mcore->nr_serial_ports = ssb_chipco_serial_init(&bus->chipco, mcore->serial_ports); - else - mcore->nr_serial_ports = 0; -} - -static void ssb_mips_flash_detect(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - - mcore->flash_buswidth = 2; - if (bus->chipco.dev) { - mcore->flash_window = 0x1c000000; - mcore->flash_window_size = 0x02000000; - if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG) - & SSB_CHIPCO_CFG_DS16) == 0) - mcore->flash_buswidth = 1; - } else { - mcore->flash_window = 0x1fc00000; - mcore->flash_window_size = 0x00400000; - } -} - -u32 ssb_cpu_clock(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus = mcore->dev->bus; - u32 pll_type, n, m, rate = 0; - - if (bus->extif.dev) { - ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m); - } else if (bus->chipco.dev) { - ssb_chipco_get_clockcpu(&bus->chipco, &pll_type, &n, &m); - } else - return 0; - - if ((pll_type == SSB_PLLTYPE_5) || (bus->chip_id == 0x5365)) { - rate = 200000000; - } else { - rate = ssb_calc_clock_rate(pll_type, n, m); - } - - if (pll_type == SSB_PLLTYPE_6) { - rate *= 2; - } - - return rate; -} - -void ssb_mipscore_init(struct ssb_mipscore *mcore) -{ - struct ssb_bus *bus; - struct ssb_device *dev; - unsigned long hz, ns; - unsigned int irq, i; - - if (!mcore->dev) - return; /* We don't have a MIPS core */ - - ssb_dprintk(KERN_INFO PFX "Initializing MIPS core...\n"); - - bus = mcore->dev->bus; - hz = ssb_clockspeed(bus); - if (!hz) - hz = 100000000; - ns = 1000000000 / hz; - - if (bus->extif.dev) - ssb_extif_timing_init(&bus->extif, ns); - else if (bus->chipco.dev) - ssb_chipco_timing_init(&bus->chipco, ns); - - /* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */ - for (irq = 2, i = 0; i < bus->nr_devices; i++) { - dev = &(bus->devices[i]); - dev->irq = ssb_mips_irq(dev) + 2; - switch (dev->id.coreid) { - case SSB_DEV_USB11_HOST: - /* shouldn't need a separate irq line for non-4710, most of them have a proper - * external usb controller on the pci */ - if ((bus->chip_id == 0x4710) && (irq <= 4)) { - set_irq(dev, irq++); - break; - } - /* fallthrough */ - case SSB_DEV_PCI: - case SSB_DEV_ETHERNET: - case SSB_DEV_80211: - case SSB_DEV_USB20_HOST: - /* These devices get their own IRQ line if available, the rest goes on IRQ0 */ - if (irq <= 4) { - set_irq(dev, irq++); - break; - } - } - } - - ssb_mips_serial_init(mcore); - ssb_mips_flash_detect(mcore); -} diff --git a/target/linux/generic-2.6/files/drivers/ssb/driver_pcicore.c b/target/linux/generic-2.6/files/drivers/ssb/driver_pcicore.c deleted file mode 100644 index 2faaa90..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/driver_pcicore.c +++ /dev/null @@ -1,576 +0,0 @@ -/* - * Sonics Silicon Backplane - * Broadcom PCI-core driver - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/ssb/ssb.h> -#include <linux/pci.h> -#include <linux/delay.h> - -#include "ssb_private.h" - - -static inline -u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset) -{ - return ssb_read32(pc->dev, offset); -} - -static inline -void pcicore_write32(struct ssb_pcicore *pc, u16 offset, u32 value) -{ - ssb_write32(pc->dev, offset, value); -} - -/************************************************** - * Code for hostmode operation. - **************************************************/ - -#ifdef CONFIG_SSB_PCICORE_HOSTMODE - -#include <asm/paccess.h> -/* Probe a 32bit value on the bus and catch bus exceptions. - * Returns nonzero on a bus exception. - * This is MIPS specific */ -#define mips_busprobe32(val, addr) get_dbe((val), ((u32 *)(addr))) - -/* Assume one-hot slot wiring */ -#define SSB_PCI_SLOT_MAX 16 - -/* Global lock is OK, as we won't have more than one extpci anyway. */ -static DEFINE_SPINLOCK(cfgspace_lock); -/* Core to access the external PCI config space. Can only have one. */ -static struct ssb_pcicore *extpci_core; - -static u32 ssb_pcicore_pcibus_iobase = 0x100; -static u32 ssb_pcicore_pcibus_membase = SSB_PCI_DMA; - -int pcibios_plat_dev_init(struct pci_dev *d) -{ - struct resource *res; - int pos, size; - u32 *base; - - ssb_printk(KERN_INFO "PCI: Fixing up device %s\n", - pci_name(d)); - - /* Fix up resource bases */ - for (pos = 0; pos < 6; pos++) { - res = &d->resource[pos]; - if (res->flags & IORESOURCE_IO) - base = &ssb_pcicore_pcibus_iobase; - else - base = &ssb_pcicore_pcibus_membase; - if (res->end) { - size = res->end - res->start + 1; - if (*base & (size - 1)) - *base = (*base + size) & ~(size - 1); - res->start = *base; - res->end = res->start + size - 1; - *base += size; - pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start); - } - /* Fix up PCI bridge BAR0 only */ - if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0) - break; - } - /* Fix up interrupt lines */ - d->irq = ssb_mips_irq(extpci_core->dev) + 2; - pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq); - - return 0; -} - -static void __init ssb_fixup_pcibridge(struct pci_dev *dev) -{ - if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0) - return; - - ssb_printk(KERN_INFO "PCI: fixing up bridge\n"); - - /* Enable PCI bridge bus mastering and memory space */ - pci_set_master(dev); - pcibios_enable_device(dev, ~0); - - /* Enable PCI bridge BAR1 prefetch and burst */ - pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3); - - /* Make sure our latency is high enough to handle the devices behind us */ - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8); -} -DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge); - -int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - return ssb_mips_irq(extpci_core->dev) + 2; -} - -static u32 get_cfgspace_addr(struct ssb_pcicore *pc, - unsigned int bus, unsigned int dev, - unsigned int func, unsigned int off) -{ - u32 addr = 0; - u32 tmp; - - if (unlikely(pc->cardbusmode && dev > 1)) - goto out; - if (bus == 0) { - /* Type 0 transaction */ - if (unlikely(dev >= SSB_PCI_SLOT_MAX)) - goto out; - /* Slide the window */ - tmp = SSB_PCICORE_SBTOPCI_CFG0; - tmp |= ((1 << (dev + 16)) & SSB_PCICORE_SBTOPCI1_MASK); - pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, tmp); - /* Calculate the address */ - addr = SSB_PCI_CFG; - addr |= ((1 << (dev + 16)) & ~SSB_PCICORE_SBTOPCI1_MASK); - addr |= (func << 8); - addr |= (off & ~3); - } else { - /* Type 1 transaction */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, - SSB_PCICORE_SBTOPCI_CFG1); - /* Calculate the address */ - addr = SSB_PCI_CFG; - addr |= (bus << 16); - addr |= (dev << 11); - addr |= (func << 8); - addr |= (off & ~3); - } -out: - return addr; -} - -static int ssb_extpci_read_config(struct ssb_pcicore *pc, - unsigned int bus, unsigned int dev, - unsigned int func, unsigned int off, - void *buf, int len) -{ - int err = -EINVAL; - u32 addr, val; - void __iomem *mmio; - - SSB_WARN_ON(!pc->hostmode); - if (unlikely(len != 1 && len != 2 && len != 4)) - goto out; - addr = get_cfgspace_addr(pc, bus, dev, func, off); - if (unlikely(!addr)) - goto out; - err = -ENOMEM; - mmio = ioremap_nocache(addr, len); - if (!mmio) - goto out; - - if (mips_busprobe32(val, mmio)) { - val = 0xffffffff; - goto unmap; - } - - val = readl(mmio); - val >>= (8 * (off & 3)); - - switch (len) { - case 1: - *((u8 *)buf) = (u8)val; - break; - case 2: - *((u16 *)buf) = (u16)val; - break; - case 4: - *((u32 *)buf) = (u32)val; - break; - } - err = 0; -unmap: - iounmap(mmio); -out: - return err; -} - -static int ssb_extpci_write_config(struct ssb_pcicore *pc, - unsigned int bus, unsigned int dev, - unsigned int func, unsigned int off, - const void *buf, int len) -{ - int err = -EINVAL; - u32 addr, val = 0; - void __iomem *mmio; - - SSB_WARN_ON(!pc->hostmode); - if (unlikely(len != 1 && len != 2 && len != 4)) - goto out; - addr = get_cfgspace_addr(pc, bus, dev, func, off); - if (unlikely(!addr)) - goto out; - err = -ENOMEM; - mmio = ioremap_nocache(addr, len); - if (!mmio) - goto out; - - if (mips_busprobe32(val, mmio)) { - val = 0xffffffff; - goto unmap; - } - - switch (len) { - case 1: - val = readl(mmio); - val &= ~(0xFF << (8 * (off & 3))); - val |= *((const u8 *)buf) << (8 * (off & 3)); - break; - case 2: - val = readl(mmio); - val &= ~(0xFFFF << (8 * (off & 3))); - val |= *((const u16 *)buf) << (8 * (off & 3)); - break; - case 4: - val = *((const u32 *)buf); - break; - } - writel(val, mmio); - - err = 0; -unmap: - iounmap(mmio); -out: - return err; -} - -static int ssb_pcicore_read_config(struct pci_bus *bus, unsigned int devfn, - int reg, int size, u32 *val) -{ - unsigned long flags; - int err; - - spin_lock_irqsave(&cfgspace_lock, flags); - err = ssb_extpci_read_config(extpci_core, bus->number, PCI_SLOT(devfn), - PCI_FUNC(devfn), reg, val, size); - spin_unlock_irqrestore(&cfgspace_lock, flags); - - return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; -} - -static int ssb_pcicore_write_config(struct pci_bus *bus, unsigned int devfn, - int reg, int size, u32 val) -{ - unsigned long flags; - int err; - - spin_lock_irqsave(&cfgspace_lock, flags); - err = ssb_extpci_write_config(extpci_core, bus->number, PCI_SLOT(devfn), - PCI_FUNC(devfn), reg, &val, size); - spin_unlock_irqrestore(&cfgspace_lock, flags); - - return err ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL; -} - -static struct pci_ops ssb_pcicore_pciops = { - .read = ssb_pcicore_read_config, - .write = ssb_pcicore_write_config, -}; - -static struct resource ssb_pcicore_mem_resource = { - .name = "SSB PCIcore external memory", - .start = SSB_PCI_DMA, - .end = SSB_PCI_DMA + SSB_PCI_DMA_SZ - 1, - .flags = IORESOURCE_MEM, -}; - -static struct resource ssb_pcicore_io_resource = { - .name = "SSB PCIcore external I/O", - .start = 0x100, - .end = 0x7FF, - .flags = IORESOURCE_IO, -}; - -static struct pci_controller ssb_pcicore_controller = { - .pci_ops = &ssb_pcicore_pciops, - .io_resource = &ssb_pcicore_io_resource, - .mem_resource = &ssb_pcicore_mem_resource, - .mem_offset = 0x24000000, -}; - -static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc) -{ - u32 val; - - if (WARN_ON(extpci_core)) - return; - extpci_core = pc; - - ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n"); - /* Reset devices on the external PCI bus */ - val = SSB_PCICORE_CTL_RST_OE; - val |= SSB_PCICORE_CTL_CLK_OE; - pcicore_write32(pc, SSB_PCICORE_CTL, val); - val |= SSB_PCICORE_CTL_CLK; /* Clock on */ - pcicore_write32(pc, SSB_PCICORE_CTL, val); - udelay(150); /* Assertion time demanded by the PCI standard */ - val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */ - pcicore_write32(pc, SSB_PCICORE_CTL, val); - val = SSB_PCICORE_ARBCTL_INTERN; - pcicore_write32(pc, SSB_PCICORE_ARBCTL, val); - udelay(1); /* Assertion time demanded by the PCI standard */ - - /*TODO cardbus mode */ - - /* 64MB I/O window */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI0, - SSB_PCICORE_SBTOPCI_IO); - /* 64MB config space */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI1, - SSB_PCICORE_SBTOPCI_CFG0); - /* 1GB memory window */ - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, - SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA); - - /* Enable PCI bridge BAR0 prefetch and burst */ - val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; - ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 2); - /* Clear error conditions */ - val = 0; - ssb_extpci_write_config(pc, 0, 0, 0, PCI_STATUS, &val, 2); - - /* Enable PCI interrupts */ - pcicore_write32(pc, SSB_PCICORE_IMASK, - SSB_PCICORE_IMASK_INTA); - - /* Ok, ready to run, register it to the system. - * The following needs change, if we want to port hostmode - * to non-MIPS platform. */ - set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000)); - /* Give some time to the PCI controller to configure itself with the new - * values. Not waiting at this point causes crashes of the machine. */ - mdelay(10); - register_pci_controller(&ssb_pcicore_controller); -} - -static int pcicore_is_in_hostmode(struct ssb_pcicore *pc) -{ - struct ssb_bus *bus = pc->dev->bus; - u16 chipid_top; - u32 tmp; - - chipid_top = (bus->chip_id & 0xFF00); - if (chipid_top != 0x4700 && - chipid_top != 0x5300) - return 0; - - if (bus->sprom.r1.boardflags_lo & SSB_PCICORE_BFL_NOPCI) - return 0; - - /* The 200-pin BCM4712 package does not bond out PCI. Even when - * PCI is bonded out, some boards may leave the pins floating. */ - if (bus->chip_id == 0x4712) { - if (bus->chip_package == SSB_CHIPPACK_BCM4712S) - return 0; - if (bus->chip_package == SSB_CHIPPACK_BCM4712M) - return 0; - } - if (bus->chip_id == 0x5350) - return 0; - - return !mips_busprobe32(tmp, (bus->mmio + (pc->dev->core_index * SSB_CORE_SIZE))); -} -#endif /* CONFIG_SSB_PCICORE_HOSTMODE */ - - -/************************************************** - * Generic and Clientmode operation code. - **************************************************/ - -static void ssb_pcicore_init_clientmode(struct ssb_pcicore *pc) -{ - /* Disable PCI interrupts. */ - ssb_write32(pc->dev, SSB_INTVEC, 0); -} - -void ssb_pcicore_init(struct ssb_pcicore *pc) -{ - struct ssb_device *dev = pc->dev; - struct ssb_bus *bus; - - if (!dev) - return; - bus = dev->bus; - if (!ssb_device_is_enabled(dev)) - ssb_device_enable(dev, 0); - -#ifdef CONFIG_SSB_PCICORE_HOSTMODE - pc->hostmode = pcicore_is_in_hostmode(pc); - if (pc->hostmode) - ssb_pcicore_init_hostmode(pc); -#endif /* CONFIG_SSB_PCICORE_HOSTMODE */ - if (!pc->hostmode) - ssb_pcicore_init_clientmode(pc); -} - -static u32 ssb_pcie_read(struct ssb_pcicore *pc, u32 address) -{ - pcicore_write32(pc, 0x130, address); - return pcicore_read32(pc, 0x134); -} - -static void ssb_pcie_write(struct ssb_pcicore *pc, u32 address, u32 data) -{ - pcicore_write32(pc, 0x130, address); - pcicore_write32(pc, 0x134, data); -} - -static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, - u8 address, u16 data) -{ - const u16 mdio_control = 0x128; - const u16 mdio_data = 0x12C; - u32 v; - int i; - - v = 0x80; /* Enable Preamble Sequence */ - v |= 0x2; /* MDIO Clock Divisor */ - pcicore_write32(pc, mdio_control, v); - - v = (1 << 30); /* Start of Transaction */ - v |= (1 << 28); /* Write Transaction */ - v |= (1 << 17); /* Turnaround */ - v |= (u32)device << 22; - v |= (u32)address << 18; - v |= data; - pcicore_write32(pc, mdio_data, v); - /* Wait for the device to complete the transaction */ - udelay(10); - for (i = 0; i < 10; i++) { - v = pcicore_read32(pc, mdio_control); - if (v & 0x100 /* Trans complete */) - break; - msleep(1); - } - pcicore_write32(pc, mdio_control, 0); -} - -static void ssb_broadcast_value(struct ssb_device *dev, - u32 address, u32 data) -{ - /* This is used for both, PCI and ChipCommon core, so be careful. */ - BUILD_BUG_ON(SSB_PCICORE_BCAST_ADDR != SSB_CHIPCO_BCAST_ADDR); - BUILD_BUG_ON(SSB_PCICORE_BCAST_DATA != SSB_CHIPCO_BCAST_DATA); - - ssb_write32(dev, SSB_PCICORE_BCAST_ADDR, address); - ssb_read32(dev, SSB_PCICORE_BCAST_ADDR); /* flush */ - ssb_write32(dev, SSB_PCICORE_BCAST_DATA, data); - ssb_read32(dev, SSB_PCICORE_BCAST_DATA); /* flush */ -} - -static void ssb_commit_settings(struct ssb_bus *bus) -{ - struct ssb_device *dev; - - dev = bus->chipco.dev ? bus->chipco.dev : bus->pcicore.dev; - if (WARN_ON(!dev)) - return; - /* This forces an update of the cached registers. */ - ssb_broadcast_value(dev, 0xFD8, 0); -} - -int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, - struct ssb_device *dev) -{ - struct ssb_device *pdev = pc->dev; - struct ssb_bus *bus; - int err = 0; - u32 tmp; - - might_sleep(); - - if (!pdev) - goto out; - bus = pdev->bus; - - /* Enable interrupts for this device. */ - if (bus->host_pci && - ((pdev->id.revision >= 6) || (pdev->id.coreid == SSB_DEV_PCIE))) { - u32 coremask; - - /* Calculate the "coremask" for the device. */ - coremask = (1 << dev->core_index); - - err = pci_read_config_dword(bus->host_pci, SSB_PCI_IRQMASK, &tmp); - if (err) - goto out; - tmp |= coremask << 8; - err = pci_write_config_dword(bus->host_pci, SSB_PCI_IRQMASK, tmp); - if (err) - goto out; - } else { - u32 intvec; - - intvec = ssb_read32(pdev, SSB_INTVEC); - if ((bus->chip_id & 0xFF00) == 0x4400) { - /* Workaround: On the BCM44XX the BPFLAG routing - * bit is wrong. Use a hardcoded constant. */ - intvec |= 0x00000002; - } else { - tmp = ssb_read32(dev, SSB_TPSFLAG); - tmp &= SSB_TPSFLAG_BPFLAG; - intvec |= tmp; - } - ssb_write32(pdev, SSB_INTVEC, intvec); - } - - /* Setup PCIcore operation. */ - if (pc->setup_done) - goto out; - if (pdev->id.coreid == SSB_DEV_PCI) { - tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); - tmp |= SSB_PCICORE_SBTOPCI_PREF; - tmp |= SSB_PCICORE_SBTOPCI_BURST; - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); - - if (pdev->id.revision < 5) { - tmp = ssb_read32(pdev, SSB_IMCFGLO); - tmp &= ~SSB_IMCFGLO_SERTO; - tmp |= 2; - tmp &= ~SSB_IMCFGLO_REQTO; - tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; - ssb_write32(pdev, SSB_IMCFGLO, tmp); - ssb_commit_settings(bus); - } else if (pdev->id.revision >= 11) { - tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); - tmp |= SSB_PCICORE_SBTOPCI_MRM; - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); - } - } else { - WARN_ON(pdev->id.coreid != SSB_DEV_PCIE); - //TODO: Better make defines for all these magic PCIE values. - if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) { - /* TLP Workaround register. */ - tmp = ssb_pcie_read(pc, 0x4); - tmp |= 0x8; - ssb_pcie_write(pc, 0x4, tmp); - } - if (pdev->id.revision == 0) { - const u8 serdes_rx_device = 0x1F; - - ssb_pcie_mdio_write(pc, serdes_rx_device, - 2 /* Timer */, 0x8128); - ssb_pcie_mdio_write(pc, serdes_rx_device, - 6 /* CDR */, 0x0100); - ssb_pcie_mdio_write(pc, serdes_rx_device, - 7 /* CDR BW */, 0x1466); - } else if (pdev->id.revision == 1) { - /* DLLP Link Control register. */ - tmp = ssb_pcie_read(pc, 0x100); - tmp |= 0x40; - ssb_pcie_write(pc, 0x100, tmp); - } - } - pc->setup_done = 1; -out: - return err; -} -EXPORT_SYMBOL(ssb_pcicore_dev_irqvecs_enable); diff --git a/target/linux/generic-2.6/files/drivers/ssb/main.c b/target/linux/generic-2.6/files/drivers/ssb/main.c deleted file mode 100644 index 9028ed5..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/main.c +++ /dev/null @@ -1,1169 +0,0 @@ -/* - * Sonics Silicon Backplane - * Subsystem core - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include "ssb_private.h" - -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/ssb/ssb.h> -#include <linux/ssb/ssb_regs.h> -#include <linux/dma-mapping.h> -#include <linux/pci.h> - -#include <pcmcia/cs_types.h> -#include <pcmcia/cs.h> -#include <pcmcia/cistpl.h> -#include <pcmcia/ds.h> - - -MODULE_DESCRIPTION("Sonics Silicon Backplane driver"); -MODULE_LICENSE("GPL"); - - -/* Temporary list of yet-to-be-attached buses */ -static LIST_HEAD(attach_queue); -/* List if running buses */ -static LIST_HEAD(buses); -/* Software ID counter */ -static unsigned int next_busnumber; -/* buses_mutes locks the two buslists and the next_busnumber. - * Don't lock this directly, but use ssb_buses_[un]lock() below. */ -static DEFINE_MUTEX(buses_mutex); - -/* There are differences in the codeflow, if the bus is - * initialized from early boot, as various needed services - * are not available early. This is a mechanism to delay - * these initializations to after early boot has finished. - * It's also used to avoid mutex locking, as that's not - * available and needed early. */ -static bool ssb_is_early_boot = 1; - -static void ssb_buses_lock(void); -static void ssb_buses_unlock(void); - - -#ifdef CONFIG_SSB_PCIHOST -struct ssb_bus *ssb_pci_dev_to_bus(struct pci_dev *pdev) -{ - struct ssb_bus *bus; - - ssb_buses_lock(); - list_for_each_entry(bus, &buses, list) { - if (bus->bustype == SSB_BUSTYPE_PCI && - bus->host_pci == pdev) - goto found; - } - bus = NULL; -found: - ssb_buses_unlock(); - - return bus; -} -#endif /* CONFIG_SSB_PCIHOST */ - -static struct ssb_device *ssb_device_get(struct ssb_device *dev) -{ - if (dev) - get_device(dev->dev); - return dev; -} - -static void ssb_device_put(struct ssb_device *dev) -{ - if (dev) - put_device(dev->dev); -} - -static int ssb_bus_resume(struct ssb_bus *bus) -{ - int err; - - ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); - err = ssb_pcmcia_init(bus); - if (err) { - /* No need to disable XTAL, as we don't have one on PCMCIA. */ - return err; - } - ssb_chipco_resume(&bus->chipco); - - return 0; -} - -static int ssb_device_resume(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv; - struct ssb_bus *bus; - int err = 0; - - bus = ssb_dev->bus; - if (bus->suspend_cnt == bus->nr_devices) { - err = ssb_bus_resume(bus); - if (err) - return err; - } - bus->suspend_cnt--; - if (dev->driver) { - ssb_drv = drv_to_ssb_drv(dev->driver); - if (ssb_drv && ssb_drv->resume) - err = ssb_drv->resume(ssb_dev); - if (err) - goto out; - } -out: - return err; -} - -static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state) -{ - ssb_chipco_suspend(&bus->chipco, state); - ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); - - /* Reset HW state information in memory, so that HW is - * completely reinitialized on resume. */ - bus->mapped_device = NULL; -#ifdef CONFIG_SSB_DRIVER_PCICORE - bus->pcicore.setup_done = 0; -#endif -#ifdef CONFIG_SSB_DEBUG - bus->powered_up = 0; -#endif -} - -static int ssb_device_suspend(struct device *dev, pm_message_t state) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv; - struct ssb_bus *bus; - int err = 0; - - if (dev->driver) { - ssb_drv = drv_to_ssb_drv(dev->driver); - if (ssb_drv && ssb_drv->suspend) - err = ssb_drv->suspend(ssb_dev, state); - if (err) - goto out; - } - - bus = ssb_dev->bus; - bus->suspend_cnt++; - if (bus->suspend_cnt == bus->nr_devices) { - /* All devices suspended. Shutdown the bus. */ - ssb_bus_suspend(bus, state); - } - -out: - return err; -} - -#ifdef CONFIG_SSB_PCIHOST -int ssb_devices_freeze(struct ssb_bus *bus) -{ - struct ssb_device *dev; - struct ssb_driver *drv; - int err = 0; - int i; - pm_message_t state = PMSG_FREEZE; - - /* First check that we are capable to freeze all devices. */ - for (i = 0; i < bus->nr_devices; i++) { - dev = &(bus->devices[i]); - if (!dev->dev || - !dev->dev->driver || - !device_is_registered(dev->dev)) - continue; - drv = drv_to_ssb_drv(dev->dev->driver); - if (!drv) - continue; - if (!drv->suspend) { - /* Nope, can't suspend this one. */ - return -EOPNOTSUPP; - } - } - /* Now suspend all devices */ - for (i = 0; i < bus->nr_devices; i++) { - dev = &(bus->devices[i]); - if (!dev->dev || - !dev->dev->driver || - !device_is_registered(dev->dev)) - continue; - drv = drv_to_ssb_drv(dev->dev->driver); - if (!drv) - continue; - err = drv->suspend(dev, state); - if (err) { - ssb_printk(KERN_ERR PFX "Failed to freeze device %s\n", - dev->dev->bus_id); - goto err_unwind; - } - } - - return 0; -err_unwind: - for (i--; i >= 0; i--) { - dev = &(bus->devices[i]); - if (!dev->dev || - !dev->dev->driver || - !device_is_registered(dev->dev)) - continue; - drv = drv_to_ssb_drv(dev->dev->driver); - if (!drv) - continue; - if (drv->resume) - drv->resume(dev); - } - return err; -} - -int ssb_devices_thaw(struct ssb_bus *bus) -{ - struct ssb_device *dev; - struct ssb_driver *drv; - int err; - int i; - - for (i = 0; i < bus->nr_devices; i++) { - dev = &(bus->devices[i]); - if (!dev->dev || - !dev->dev->driver || - !device_is_registered(dev->dev)) - continue; - drv = drv_to_ssb_drv(dev->dev->driver); - if (!drv) - continue; - if (SSB_WARN_ON(!drv->resume)) - continue; - err = drv->resume(dev); - if (err) { - ssb_printk(KERN_ERR PFX "Failed to thaw device %s\n", - dev->dev->bus_id); - } - } - - return 0; -} -#endif /* CONFIG_SSB_PCIHOST */ - -static void ssb_device_shutdown(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv; - - if (!dev->driver) - return; - ssb_drv = drv_to_ssb_drv(dev->driver); - if (ssb_drv && ssb_drv->shutdown) - ssb_drv->shutdown(ssb_dev); -} - -static int ssb_device_remove(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver); - - if (ssb_drv && ssb_drv->remove) - ssb_drv->remove(ssb_dev); - ssb_device_put(ssb_dev); - - return 0; -} - -static int ssb_device_probe(struct device *dev) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv = drv_to_ssb_drv(dev->driver); - int err = 0; - - ssb_device_get(ssb_dev); - if (ssb_drv && ssb_drv->probe) - err = ssb_drv->probe(ssb_dev, &ssb_dev->id); - if (err) - ssb_device_put(ssb_dev); - - return err; -} - -static int ssb_match_devid(const struct ssb_device_id *tabid, - const struct ssb_device_id *devid) -{ - if ((tabid->vendor != devid->vendor) && - tabid->vendor != SSB_ANY_VENDOR) - return 0; - if ((tabid->coreid != devid->coreid) && - tabid->coreid != SSB_ANY_ID) - return 0; - if ((tabid->revision != devid->revision) && - tabid->revision != SSB_ANY_REV) - return 0; - return 1; -} - -static int ssb_bus_match(struct device *dev, struct device_driver *drv) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - struct ssb_driver *ssb_drv = drv_to_ssb_drv(drv); - const struct ssb_device_id *id; - - for (id = ssb_drv->id_table; - id->vendor || id->coreid || id->revision; - id++) { - if (ssb_match_devid(id, &ssb_dev->id)) - return 1; /* found */ - } - - return 0; -} - -static int ssb_device_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - struct ssb_device *ssb_dev = dev_to_ssb_dev(dev); - - if (!dev) - return -ENODEV; - - return add_uevent_var(env, - "MODALIAS=ssb:v%04Xid%04Xrev%02X", - ssb_dev->id.vendor, ssb_dev->id.coreid, - ssb_dev->id.revision); -} - -static struct bus_type ssb_bustype = { - .name = "ssb", - .match = ssb_bus_match, - .probe = ssb_device_probe, - .remove = ssb_device_remove, - .shutdown = ssb_device_shutdown, - .suspend = ssb_device_suspend, - .resume = ssb_device_resume, - .uevent = ssb_device_uevent, -}; - -static void ssb_buses_lock(void) -{ - /* See the comment at the ssb_is_early_boot definition */ - if (!ssb_is_early_boot) - mutex_lock(&buses_mutex); -} - -static void ssb_buses_unlock(void) -{ - /* See the comment at the ssb_is_early_boot definition */ - if (!ssb_is_early_boot) - mutex_unlock(&buses_mutex); -} - -static void ssb_devices_unregister(struct ssb_bus *bus) -{ - struct ssb_device *sdev; - int i; - - for (i = bus->nr_devices - 1; i >= 0; i--) { - sdev = &(bus->devices[i]); - if (sdev->dev) - device_unregister(sdev->dev); - } -} - -void ssb_bus_unregister(struct ssb_bus *bus) -{ - ssb_buses_lock(); - ssb_devices_unregister(bus); - list_del(&bus->list); - ssb_buses_unlock(); - - /* ssb_pcmcia_exit(bus); */ - ssb_pci_exit(bus); - ssb_iounmap(bus); -} -EXPORT_SYMBOL(ssb_bus_unregister); - -static void ssb_release_dev(struct device *dev) -{ - struct __ssb_dev_wrapper *devwrap; - - devwrap = container_of(dev, struct __ssb_dev_wrapper, dev); - kfree(devwrap); -} - -static int ssb_devices_register(struct ssb_bus *bus) -{ - struct ssb_device *sdev; - struct device *dev; - struct __ssb_dev_wrapper *devwrap; - int i, err = 0; - int dev_idx = 0; - - for (i = 0; i < bus->nr_devices; i++) { - sdev = &(bus->devices[i]); - - /* We don't register SSB-system devices to the kernel, - * as the drivers for them are built into SSB. */ - switch (sdev->id.coreid) { - case SSB_DEV_CHIPCOMMON: - case SSB_DEV_PCI: - case SSB_DEV_PCIE: - case SSB_DEV_PCMCIA: - case SSB_DEV_MIPS: - case SSB_DEV_MIPS_3302: - case SSB_DEV_EXTIF: - continue; - } - - devwrap = kzalloc(sizeof(*devwrap), GFP_KERNEL); - if (!devwrap) { - ssb_printk(KERN_ERR PFX - "Could not allocate device\n"); - err = -ENOMEM; - goto error; - } - dev = &devwrap->dev; - devwrap->sdev = sdev; - - dev->release = ssb_release_dev; - dev->bus = &ssb_bustype; - snprintf(dev->bus_id, sizeof(dev->bus_id), - "ssb%u:%d", bus->busnumber, dev_idx); - - switch (bus->bustype) { - case SSB_BUSTYPE_PCI: -#ifdef CONFIG_SSB_PCIHOST - sdev->irq = bus->host_pci->irq; - dev->parent = &bus->host_pci->dev; -#endif - break; - case SSB_BUSTYPE_PCMCIA: -#ifdef CONFIG_SSB_PCMCIAHOST - sdev->irq = bus->host_pcmcia->irq.AssignedIRQ; - dev->parent = &bus->host_pcmcia->dev; -#endif - break; - case SSB_BUSTYPE_SSB: - break; - } - - sdev->dev = dev; - err = device_register(dev); - if (err) { - ssb_printk(KERN_ERR PFX - "Could not register %s\n", - dev->bus_id); - /* Set dev to NULL to not unregister - * dev on error unwinding. */ - sdev->dev = NULL; - kfree(devwrap); - goto error; - } - dev_idx++; - } - - return 0; -error: - /* Unwind the already registered devices. */ - ssb_devices_unregister(bus); - return err; -} - -/* Needs ssb_buses_lock() */ -static int ssb_attach_queued_buses(void) -{ - struct ssb_bus *bus, *n; - int err = 0; - int drop_them_all = 0; - - list_for_each_entry_safe(bus, n, &attach_queue, list) { - if (drop_them_all) { - list_del(&bus->list); - continue; - } - /* Can't init the PCIcore in ssb_bus_register(), as that - * is too early in boot for embedded systems - * (no udelay() available). So do it here in attach stage. - */ - err = ssb_bus_powerup(bus, 0); - if (err) - goto error; - ssb_pcicore_init(&bus->pcicore); - ssb_bus_may_powerdown(bus); - - err = ssb_devices_register(bus); -error: - if (err) { - drop_them_all = 1; - list_del(&bus->list); - continue; - } - list_move_tail(&bus->list, &buses); - } - - return err; -} - -static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - return readw(bus->mmio + offset); -} - -static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - return readl(bus->mmio + offset); -} - -static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - writew(value, bus->mmio + offset); -} - -static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value) -{ - struct ssb_bus *bus = dev->bus; - - offset += dev->core_index * SSB_CORE_SIZE; - writel(value, bus->mmio + offset); -} - -/* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */ -static const struct ssb_bus_ops ssb_ssb_ops = { - .read16 = ssb_ssb_read16, - .read32 = ssb_ssb_read32, - .write16 = ssb_ssb_write16, - .write32 = ssb_ssb_write32, -}; - -static int ssb_fetch_invariants(struct ssb_bus *bus, - ssb_invariants_func_t get_invariants) -{ - struct ssb_init_invariants iv; - int err; - - memset(&iv, 0, sizeof(iv)); - err = get_invariants(bus, &iv); - if (err) - goto out; - memcpy(&bus->boardinfo, &iv.boardinfo, sizeof(iv.boardinfo)); - memcpy(&bus->sprom, &iv.sprom, sizeof(iv.sprom)); -out: - return err; -} - -static int ssb_bus_register(struct ssb_bus *bus, - ssb_invariants_func_t get_invariants, - unsigned long baseaddr) -{ - int err; - - spin_lock_init(&bus->bar_lock); - INIT_LIST_HEAD(&bus->list); - - /* Powerup the bus */ - err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); - if (err) - goto out; - ssb_buses_lock(); - bus->busnumber = next_busnumber; - /* Scan for devices (cores) */ - err = ssb_bus_scan(bus, baseaddr); - if (err) - goto err_disable_xtal; - - /* Init PCI-host device (if any) */ - err = ssb_pci_init(bus); - if (err) - goto err_unmap; - /* Init PCMCIA-host device (if any) */ - err = ssb_pcmcia_init(bus); - if (err) - goto err_pci_exit; - - /* Initialize basic system devices (if available) */ - err = ssb_bus_powerup(bus, 0); - if (err) - goto err_pcmcia_exit; - ssb_chipcommon_init(&bus->chipco); - ssb_mipscore_init(&bus->mipscore); - err = ssb_fetch_invariants(bus, get_invariants); - if (err) { - ssb_bus_may_powerdown(bus); - goto err_pcmcia_exit; - } - ssb_bus_may_powerdown(bus); - - /* Queue it for attach. - * See the comment at the ssb_is_early_boot definition. */ - list_add_tail(&bus->list, &attach_queue); - if (!ssb_is_early_boot) { - /* This is not early boot, so we must attach the bus now */ - err = ssb_attach_queued_buses(); - if (err) - goto err_dequeue; - } - next_busnumber++; - ssb_buses_unlock(); - -out: - return err; - -err_dequeue: - list_del(&bus->list); -err_pcmcia_exit: -/* ssb_pcmcia_exit(bus); */ -err_pci_exit: - ssb_pci_exit(bus); -err_unmap: - ssb_iounmap(bus); -err_disable_xtal: - ssb_buses_unlock(); - ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); - return err; -} - -#ifdef CONFIG_SSB_PCIHOST -int ssb_bus_pcibus_register(struct ssb_bus *bus, - struct pci_dev *host_pci) -{ - int err; - - bus->bustype = SSB_BUSTYPE_PCI; - bus->host_pci = host_pci; - bus->ops = &ssb_pci_ops; - - err = ssb_bus_register(bus, ssb_pci_get_invariants, 0); - if (!err) { - ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on " - "PCI device %s\n", host_pci->dev.bus_id); - } - - return err; -} -EXPORT_SYMBOL(ssb_bus_pcibus_register); -#endif /* CONFIG_SSB_PCIHOST */ - -#ifdef CONFIG_SSB_PCMCIAHOST -int ssb_bus_pcmciabus_register(struct ssb_bus *bus, - struct pcmcia_device *pcmcia_dev, - unsigned long baseaddr) -{ - int err; - - bus->bustype = SSB_BUSTYPE_PCMCIA; - bus->host_pcmcia = pcmcia_dev; - bus->ops = &ssb_pcmcia_ops; - - err = ssb_bus_register(bus, ssb_pcmcia_get_invariants, baseaddr); - if (!err) { - ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on " - "PCMCIA device %s\n", pcmcia_dev->devname); - } - - return err; -} -EXPORT_SYMBOL(ssb_bus_pcmciabus_register); -#endif /* CONFIG_SSB_PCMCIAHOST */ - -int ssb_bus_ssbbus_register(struct ssb_bus *bus, - unsigned long baseaddr, - ssb_invariants_func_t get_invariants) -{ - int err; - - bus->bustype = SSB_BUSTYPE_SSB; - bus->ops = &ssb_ssb_ops; - - err = ssb_bus_register(bus, get_invariants, baseaddr); - if (!err) { - ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found at " - "address 0x%08lX\n", baseaddr); - } - - return err; -} - -int __ssb_driver_register(struct ssb_driver *drv, struct module *owner) -{ - drv->drv.name = drv->name; - drv->drv.bus = &ssb_bustype; - drv->drv.owner = owner; - - return driver_register(&drv->drv); -} -EXPORT_SYMBOL(__ssb_driver_register); - -void ssb_driver_unregister(struct ssb_driver *drv) -{ - driver_unregister(&drv->drv); -} -EXPORT_SYMBOL(ssb_driver_unregister); - -void ssb_set_devtypedata(struct ssb_device *dev, void *data) -{ - struct ssb_bus *bus = dev->bus; - struct ssb_device *ent; - int i; - - for (i = 0; i < bus->nr_devices; i++) { - ent = &(bus->devices[i]); - if (ent->id.vendor != dev->id.vendor) - continue; - if (ent->id.coreid != dev->id.coreid) - continue; - - ent->devtypedata = data; - } -} -EXPORT_SYMBOL(ssb_set_devtypedata); - -static u32 clkfactor_f6_resolve(u32 v) -{ - /* map the magic values */ - switch (v) { - case SSB_CHIPCO_CLK_F6_2: - return 2; - case SSB_CHIPCO_CLK_F6_3: - return 3; - case SSB_CHIPCO_CLK_F6_4: - return 4; - case SSB_CHIPCO_CLK_F6_5: - return 5; - case SSB_CHIPCO_CLK_F6_6: - return 6; - case SSB_CHIPCO_CLK_F6_7: - return 7; - } - return 0; -} - -/* Calculate the speed the backplane would run at a given set of clockcontrol values */ -u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m) -{ - u32 n1, n2, clock, m1, m2, m3, mc; - - n1 = (n & SSB_CHIPCO_CLK_N1); - n2 = ((n & SSB_CHIPCO_CLK_N2) >> SSB_CHIPCO_CLK_N2_SHIFT); - - switch (plltype) { - case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ - if (m & SSB_CHIPCO_CLK_T6_MMASK) - return SSB_CHIPCO_CLK_T6_M0; - return SSB_CHIPCO_CLK_T6_M1; - case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ - case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ - n1 = clkfactor_f6_resolve(n1); - n2 += SSB_CHIPCO_CLK_F5_BIAS; - break; - case SSB_PLLTYPE_2: /* 48Mhz, 4 dividers */ - n1 += SSB_CHIPCO_CLK_T2_BIAS; - n2 += SSB_CHIPCO_CLK_T2_BIAS; - SSB_WARN_ON(!((n1 >= 2) && (n1 <= 7))); - SSB_WARN_ON(!((n2 >= 5) && (n2 <= 23))); - break; - case SSB_PLLTYPE_5: /* 25Mhz, 4 dividers */ - return 100000000; - default: - SSB_WARN_ON(1); - } - - switch (plltype) { - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ - clock = SSB_CHIPCO_CLK_BASE2 * n1 * n2; - break; - default: - clock = SSB_CHIPCO_CLK_BASE1 * n1 * n2; - } - if (!clock) - return 0; - - m1 = (m & SSB_CHIPCO_CLK_M1); - m2 = ((m & SSB_CHIPCO_CLK_M2) >> SSB_CHIPCO_CLK_M2_SHIFT); - m3 = ((m & SSB_CHIPCO_CLK_M3) >> SSB_CHIPCO_CLK_M3_SHIFT); - mc = ((m & SSB_CHIPCO_CLK_MC) >> SSB_CHIPCO_CLK_MC_SHIFT); - - switch (plltype) { - case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ - case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ - case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ - case SSB_PLLTYPE_7: /* 25Mhz, 4 dividers */ - m1 = clkfactor_f6_resolve(m1); - if ((plltype == SSB_PLLTYPE_1) || - (plltype == SSB_PLLTYPE_3)) - m2 += SSB_CHIPCO_CLK_F5_BIAS; - else - m2 = clkfactor_f6_resolve(m2); - m3 = clkfactor_f6_resolve(m3); - - switch (mc) { - case SSB_CHIPCO_CLK_MC_BYPASS: - return clock; - case SSB_CHIPCO_CLK_MC_M1: - return (clock / m1); - case SSB_CHIPCO_CLK_MC_M1M2: - return (clock / (m1 * m2)); - case SSB_CHIPCO_CLK_MC_M1M2M3: - return (clock / (m1 * m2 * m3)); - case SSB_CHIPCO_CLK_MC_M1M3: - return (clock / (m1 * m3)); - } - return 0; - case SSB_PLLTYPE_2: - m1 += SSB_CHIPCO_CLK_T2_BIAS; - m2 += SSB_CHIPCO_CLK_T2M2_BIAS; - m3 += SSB_CHIPCO_CLK_T2_BIAS; - SSB_WARN_ON(!((m1 >= 2) && (m1 <= 7))); - SSB_WARN_ON(!((m2 >= 3) && (m2 <= 10))); - SSB_WARN_ON(!((m3 >= 2) && (m3 <= 7))); - - if (!(mc & SSB_CHIPCO_CLK_T2MC_M1BYP)) - clock /= m1; - if (!(mc & SSB_CHIPCO_CLK_T2MC_M2BYP)) - clock /= m2; - if (!(mc & SSB_CHIPCO_CLK_T2MC_M3BYP)) - clock /= m3; - return clock; - default: - SSB_WARN_ON(1); - } - return 0; -} - -/* Get the current speed the backplane is running at */ -u32 ssb_clockspeed(struct ssb_bus *bus) -{ - u32 rate; - u32 plltype; - u32 clkctl_n, clkctl_m; - - if (ssb_extif_available(&bus->extif)) - ssb_extif_get_clockcontrol(&bus->extif, &plltype, - &clkctl_n, &clkctl_m); - else if (bus->chipco.dev) - ssb_chipco_get_clockcontrol(&bus->chipco, &plltype, - &clkctl_n, &clkctl_m); - else - return 0; - - if (bus->chip_id == 0x5365) { - rate = 100000000; - } else { - rate = ssb_calc_clock_rate(plltype, clkctl_n, clkctl_m); - if (plltype == SSB_PLLTYPE_3) /* 25Mhz, 2 dividers */ - rate /= 2; - } - - return rate; -} -EXPORT_SYMBOL(ssb_clockspeed); - -static u32 ssb_tmslow_reject_bitmask(struct ssb_device *dev) -{ - u32 rev = ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV; - - /* The REJECT bit changed position in TMSLOW between - * Backplane revisions. */ - switch (rev) { - case SSB_IDLOW_SSBREV_22: - return SSB_TMSLOW_REJECT_22; - case SSB_IDLOW_SSBREV_23: - return SSB_TMSLOW_REJECT_23; - case SSB_IDLOW_SSBREV_24: /* TODO - find the proper REJECT bits */ - case SSB_IDLOW_SSBREV_25: /* same here */ - case SSB_IDLOW_SSBREV_26: /* same here */ - case SSB_IDLOW_SSBREV_27: /* same here */ - return SSB_TMSLOW_REJECT_23; /* this is a guess */ - default: - printk(KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev); - WARN_ON(1); - } - return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23); -} - -int ssb_device_is_enabled(struct ssb_device *dev) -{ - u32 val; - u32 reject; - - reject = ssb_tmslow_reject_bitmask(dev); - val = ssb_read32(dev, SSB_TMSLOW); - val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | reject; - - return (val == SSB_TMSLOW_CLOCK); -} -EXPORT_SYMBOL(ssb_device_is_enabled); - -static void ssb_flush_tmslow(struct ssb_device *dev) -{ - /* Make _really_ sure the device has finished the TMSLOW - * register write transaction, as we risk running into - * a machine check exception otherwise. - * Do this by reading the register back to commit the - * PCI write and delay an additional usec for the device - * to react to the change. */ - ssb_read32(dev, SSB_TMSLOW); - udelay(1); -} - -void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags) -{ - u32 val; - - ssb_device_disable(dev, core_specific_flags); - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_RESET | SSB_TMSLOW_CLOCK | - SSB_TMSLOW_FGC | core_specific_flags); - ssb_flush_tmslow(dev); - - /* Clear SERR if set. This is a hw bug workaround. */ - if (ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_SERR) - ssb_write32(dev, SSB_TMSHIGH, 0); - - val = ssb_read32(dev, SSB_IMSTATE); - if (val & (SSB_IMSTATE_IBE | SSB_IMSTATE_TO)) { - val &= ~(SSB_IMSTATE_IBE | SSB_IMSTATE_TO); - ssb_write32(dev, SSB_IMSTATE, val); - } - - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_CLOCK | SSB_TMSLOW_FGC | - core_specific_flags); - ssb_flush_tmslow(dev); - - ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_CLOCK | - core_specific_flags); - ssb_flush_tmslow(dev); -} -EXPORT_SYMBOL(ssb_device_enable); - -/* Wait for a bit in a register to get set or unset. - * timeout is in units of ten-microseconds */ -static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask, - int timeout, int set) -{ - int i; - u32 val; - - for (i = 0; i < timeout; i++) { - val = ssb_read32(dev, reg); - if (set) { - if (val & bitmask) - return 0; - } else { - if (!(val & bitmask)) - return 0; - } - udelay(10); - } - printk(KERN_ERR PFX "Timeout waiting for bitmask %08X on " - "register %04X to %s.\n", - bitmask, reg, (set ? "set" : "clear")); - - return -ETIMEDOUT; -} - -void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags) -{ - u32 reject; - - if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET) - return; - - reject = ssb_tmslow_reject_bitmask(dev); - ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK); - ssb_wait_bit(dev, SSB_TMSLOW, reject, 1000, 1); - ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0); - ssb_write32(dev, SSB_TMSLOW, - SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | - reject | SSB_TMSLOW_RESET | - core_specific_flags); - ssb_flush_tmslow(dev); - - ssb_write32(dev, SSB_TMSLOW, - reject | SSB_TMSLOW_RESET | - core_specific_flags); - ssb_flush_tmslow(dev); -} -EXPORT_SYMBOL(ssb_device_disable); - -u32 ssb_dma_translation(struct ssb_device *dev) -{ - switch (dev->bus->bustype) { - case SSB_BUSTYPE_SSB: - return 0; - case SSB_BUSTYPE_PCI: - case SSB_BUSTYPE_PCMCIA: - return SSB_PCI_DMA; - } - return 0; -} -EXPORT_SYMBOL(ssb_dma_translation); - -int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask) -{ - struct device *dev = ssb_dev->dev; - -#ifdef CONFIG_SSB_PCIHOST - if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI && - !dma_supported(dev, mask)) - return -EIO; -#endif - dev->coherent_dma_mask = mask; - dev->dma_mask = &dev->coherent_dma_mask; - - return 0; -} -EXPORT_SYMBOL(ssb_dma_set_mask); - -int ssb_bus_may_powerdown(struct ssb_bus *bus) -{ - struct ssb_chipcommon *cc; - int err = 0; - - /* On buses where more than one core may be working - * at a time, we must not powerdown stuff if there are - * still cores that may want to run. */ - if (bus->bustype == SSB_BUSTYPE_SSB) - goto out; - - cc = &bus->chipco; - ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW); - err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0); - if (err) - goto error; -out: -#ifdef CONFIG_SSB_DEBUG - bus->powered_up = 0; -#endif - return err; -error: - ssb_printk(KERN_ERR PFX "Bus powerdown failed\n"); - goto out; -} -EXPORT_SYMBOL(ssb_bus_may_powerdown); - -int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl) -{ - struct ssb_chipcommon *cc; - int err; - enum ssb_clkmode mode; - - err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1); - if (err) - goto error; - cc = &bus->chipco; - mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST; - ssb_chipco_set_clockmode(cc, mode); - -#ifdef CONFIG_SSB_DEBUG - bus->powered_up = 1; -#endif - return 0; -error: - ssb_printk(KERN_ERR PFX "Bus powerup failed\n"); - return err; -} -EXPORT_SYMBOL(ssb_bus_powerup); - -u32 ssb_admatch_base(u32 adm) -{ - u32 base = 0; - - switch (adm & SSB_ADM_TYPE) { - case SSB_ADM_TYPE0: - base = (adm & SSB_ADM_BASE0); - break; - case SSB_ADM_TYPE1: - SSB_WARN_ON(adm & SSB_ADM_NEG); /* unsupported */ - base = (adm & SSB_ADM_BASE1); - break; - case SSB_ADM_TYPE2: - SSB_WARN_ON(adm & SSB_ADM_NEG); /* unsupported */ - base = (adm & SSB_ADM_BASE2); - break; - default: - SSB_WARN_ON(1); - } - - return base; -} -EXPORT_SYMBOL(ssb_admatch_base); - -u32 ssb_admatch_size(u32 adm) -{ - u32 size = 0; - - switch (adm & SSB_ADM_TYPE) { - case SSB_ADM_TYPE0: - size = ((adm & SSB_ADM_SZ0) >> SSB_ADM_SZ0_SHIFT); - break; - case SSB_ADM_TYPE1: - SSB_WARN_ON(adm & SSB_ADM_NEG); /* unsupported */ - size = ((adm & SSB_ADM_SZ1) >> SSB_ADM_SZ1_SHIFT); - break; - case SSB_ADM_TYPE2: - SSB_WARN_ON(adm & SSB_ADM_NEG); /* unsupported */ - size = ((adm & SSB_ADM_SZ2) >> SSB_ADM_SZ2_SHIFT); - break; - default: - SSB_WARN_ON(1); - } - size = (1 << (size + 1)); - - return size; -} -EXPORT_SYMBOL(ssb_admatch_size); - -static int __init ssb_modinit(void) -{ - int err; - - /* See the comment at the ssb_is_early_boot definition */ - ssb_is_early_boot = 0; - err = bus_register(&ssb_bustype); - if (err) - return err; - - /* Maybe we already registered some buses at early boot. - * Check for this and attach them - */ - ssb_buses_lock(); - err = ssb_attach_queued_buses(); - ssb_buses_unlock(); - if (err) - bus_unregister(&ssb_bustype); - - err = b43_pci_ssb_bridge_init(); - if (err) { - ssb_printk(KERN_ERR "Broadcom 43xx PCI-SSB-bridge " - "initialization failed"); - /* don't fail SSB init because of this */ - err = 0; - } - - return err; -} -/* ssb must be initialized after PCI but before the ssb drivers. - * That means we must use some initcall between subsys_initcall - * and device_initcall. */ -fs_initcall(ssb_modinit); - -static void __exit ssb_modexit(void) -{ - b43_pci_ssb_bridge_exit(); - bus_unregister(&ssb_bustype); -} -module_exit(ssb_modexit) diff --git a/target/linux/generic-2.6/files/drivers/ssb/pci.c b/target/linux/generic-2.6/files/drivers/ssb/pci.c deleted file mode 100644 index b434df7..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/pci.c +++ /dev/null @@ -1,790 +0,0 @@ -/* - * Sonics Silicon Backplane PCI-Hostbus related functions. - * - * Copyright (C) 2005-2006 Michael Buesch <mb@bu3sch.de> - * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> - * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> - * Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> - * - * Derived from the Broadcom 4400 device driver. - * Copyright (C) 2002 David S. Miller (davem@redhat.com) - * Fixed by Pekka Pietikainen (pp@ee.oulu.fi) - * Copyright (C) 2006 Broadcom Corporation. - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/ssb/ssb.h> -#include <linux/ssb/ssb_regs.h> -#include <linux/pci.h> -#include <linux/delay.h> - -#include "ssb_private.h" - - -/* Define the following to 1 to enable a printk on each coreswitch. */ -#define SSB_VERBOSE_PCICORESWITCH_DEBUG 0 - - -/* Lowlevel coreswitching */ -int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx) -{ - int err; - int attempts = 0; - u32 cur_core; - - while (1) { - err = pci_write_config_dword(bus->host_pci, SSB_BAR0_WIN, - (coreidx * SSB_CORE_SIZE) - + SSB_ENUM_BASE); - if (err) - goto error; - err = pci_read_config_dword(bus->host_pci, SSB_BAR0_WIN, - &cur_core); - if (err) - goto error; - cur_core = (cur_core - SSB_ENUM_BASE) - / SSB_CORE_SIZE; - if (cur_core == coreidx) - break; - - if (attempts++ > SSB_BAR0_MAX_RETRIES) - goto error; - udelay(10); - } - return 0; -error: - ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx); - return -ENODEV; -} - -int ssb_pci_switch_core(struct ssb_bus *bus, - struct ssb_device *dev) -{ - int err; - unsigned long flags; - -#if SSB_VERBOSE_PCICORESWITCH_DEBUG - ssb_printk(KERN_INFO PFX - "Switching to %s core, index %d\n", - ssb_core_name(dev->id.coreid), - dev->core_index); -#endif - - spin_lock_irqsave(&bus->bar_lock, flags); - err = ssb_pci_switch_coreidx(bus, dev->core_index); - if (!err) - bus->mapped_device = dev; - spin_unlock_irqrestore(&bus->bar_lock, flags); - - return err; -} - -/* Enable/disable the on board crystal oscillator and/or PLL. */ -int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on) -{ - int err; - u32 in, out, outenable; - u16 pci_status; - - if (bus->bustype != SSB_BUSTYPE_PCI) - return 0; - - err = pci_read_config_dword(bus->host_pci, SSB_GPIO_IN, &in); - if (err) - goto err_pci; - err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out); - if (err) - goto err_pci; - err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, &outenable); - if (err) - goto err_pci; - - outenable |= what; - - if (turn_on) { - /* Avoid glitching the clock if GPRS is already using it. - * We can't actually read the state of the PLLPD so we infer it - * by the value of XTAL_PU which *is* readable via gpioin. - */ - if (!(in & SSB_GPIO_XTAL)) { - if (what & SSB_GPIO_XTAL) { - /* Turn the crystal on */ - out |= SSB_GPIO_XTAL; - if (what & SSB_GPIO_PLL) - out |= SSB_GPIO_PLL; - err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); - if (err) - goto err_pci; - err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, - outenable); - if (err) - goto err_pci; - msleep(1); - } - if (what & SSB_GPIO_PLL) { - /* Turn the PLL on */ - out &= ~SSB_GPIO_PLL; - err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); - if (err) - goto err_pci; - msleep(5); - } - } - - err = pci_read_config_word(bus->host_pci, PCI_STATUS, &pci_status); - if (err) - goto err_pci; - pci_status &= ~PCI_STATUS_SIG_TARGET_ABORT; - err = pci_write_config_word(bus->host_pci, PCI_STATUS, pci_status); - if (err) - goto err_pci; - } else { - if (what & SSB_GPIO_XTAL) { - /* Turn the crystal off */ - out &= ~SSB_GPIO_XTAL; - } - if (what & SSB_GPIO_PLL) { - /* Turn the PLL off */ - out |= SSB_GPIO_PLL; - } - err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); - if (err) - goto err_pci; - err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, outenable); - if (err) - goto err_pci; - } - -out: - return err; - -err_pci: - printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n"); - err = -EBUSY; - goto out; -} - -/* Get the word-offset for a SSB_SPROM_XXX define. */ -#define SPOFF(offset) (((offset) - SSB_SPROM_BASE) / sizeof(u16)) -/* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */ -#define SPEX(_outvar, _offset, _mask, _shift) \ - out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift)) - -static inline u8 ssb_crc8(u8 crc, u8 data) -{ - /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ - static const u8 t[] = { - 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, - 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, - 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, - 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, - 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, - 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, - 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, - 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, - 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, - 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, - 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, - 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, - 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, - 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, - 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, - 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, - 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, - 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, - 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, - 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, - 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, - 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, - 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, - 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, - 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, - 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, - 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, - 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, - 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, - 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, - 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, - 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, - }; - return t[crc ^ data]; -} - -static u8 ssb_sprom_crc(const u16 *sprom, u16 size) -{ - int word; - u8 crc = 0xFF; - - for (word = 0; word < size - 1; word++) { - crc = ssb_crc8(crc, sprom[word] & 0x00FF); - crc = ssb_crc8(crc, (sprom[word] & 0xFF00) >> 8); - } - crc = ssb_crc8(crc, sprom[size - 1] & 0x00FF); - crc ^= 0xFF; - - return crc; -} - -static int sprom_check_crc(const u16 *sprom, u16 size) -{ - u8 crc; - u8 expected_crc; - u16 tmp; - - crc = ssb_sprom_crc(sprom, size); - tmp = sprom[size - 1] & SSB_SPROM_REVISION_CRC; - expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; - if (crc != expected_crc) - return -EPROTO; - - return 0; -} - -static void sprom_do_read(struct ssb_bus *bus, u16 *sprom) -{ - int i; - - for (i = 0; i < bus->sprom_size; i++) - sprom[i] = ioread16(bus->mmio + SSB_SPROM_BASE + (i * 2)); -} - -static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom) -{ - struct pci_dev *pdev = bus->host_pci; - int i, err; - u32 spromctl; - u16 size = bus->sprom_size; - - ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n"); - err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); - if (err) - goto err_ctlreg; - spromctl |= SSB_SPROMCTL_WE; - err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); - if (err) - goto err_ctlreg; - ssb_printk(KERN_NOTICE PFX "[ 0%%"); - msleep(500); - for (i = 0; i < size; i++) { - if (i == size / 4) - ssb_printk("25%%"); - else if (i == size / 2) - ssb_printk("50%%"); - else if (i == (size * 3) / 4) - ssb_printk("75%%"); - else if (i % 2) - ssb_printk("."); - writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2)); - mmiowb(); - msleep(20); - } - err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); - if (err) - goto err_ctlreg; - spromctl &= ~SSB_SPROMCTL_WE; - err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); - if (err) - goto err_ctlreg; - msleep(500); - ssb_printk("100%% ]\n"); - ssb_printk(KERN_NOTICE PFX "SPROM written.\n"); - - return 0; -err_ctlreg: - ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n"); - return err; -} - -static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in, - u16 mask, u16 shift) -{ - u16 v; - u8 gain; - - v = in[SPOFF(SSB_SPROM1_AGAIN)]; - gain = (v & mask) >> shift; - if (gain == 0xFF) - gain = 2; /* If unset use 2dBm */ - if (sprom_revision == 1) { - /* Convert to Q5.2 */ - gain <<= 2; - } else { - /* Q5.2 Fractional part is stored in 0xC0 */ - gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2); - } - - return (s8)gain; -} - -static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) -{ - int i; - u16 v; - s8 gain; - u16 loc[3]; - - if (out->revision == 3) { /* rev 3 moved MAC */ - loc[0] = SSB_SPROM3_IL0MAC; - loc[1] = SSB_SPROM3_ET0MAC; - loc[2] = SSB_SPROM3_ET1MAC; - } else { - loc[0] = SSB_SPROM1_IL0MAC; - loc[1] = SSB_SPROM1_ET0MAC; - loc[2] = SSB_SPROM1_ET1MAC; - } - for (i = 0; i < 3; i++) { - v = in[SPOFF(loc[0]) + i]; - *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); - } - for (i = 0; i < 3; i++) { - v = in[SPOFF(loc[1]) + i]; - *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v); - } - for (i = 0; i < 3; i++) { - v = in[SPOFF(loc[2]) + i]; - *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v); - } - SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0); - SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A, - SSB_SPROM1_ETHPHY_ET1A_SHIFT); - SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14); - SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15); - SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0); - SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE, - SSB_SPROM1_BINF_CCODE_SHIFT); - SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA, - SSB_SPROM1_BINF_ANTA_SHIFT); - SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG, - SSB_SPROM1_BINF_ANTBG_SHIFT); - SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0); - SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0); - SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0); - SPEX(pa1b0, SSB_SPROM1_PA1B0, 0xFFFF, 0); - SPEX(pa1b1, SSB_SPROM1_PA1B1, 0xFFFF, 0); - SPEX(pa1b2, SSB_SPROM1_PA1B2, 0xFFFF, 0); - SPEX(gpio0, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P0, 0); - SPEX(gpio1, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P1, - SSB_SPROM1_GPIOA_P1_SHIFT); - SPEX(gpio2, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P2, 0); - SPEX(gpio3, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P3, - SSB_SPROM1_GPIOB_P3_SHIFT); - SPEX(maxpwr_a, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_A, - SSB_SPROM1_MAXPWR_A_SHIFT); - SPEX(maxpwr_bg, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_BG, 0); - SPEX(itssi_a, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_A, - SSB_SPROM1_ITSSI_A_SHIFT); - SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0); - SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0); - if (out->revision >= 2) - SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0); - - /* Extract the antenna gain values. */ - gain = r123_extract_antgain(out->revision, in, - SSB_SPROM1_AGAIN_BG, - SSB_SPROM1_AGAIN_BG_SHIFT); - out->antenna_gain.ghz24.a0 = gain; - out->antenna_gain.ghz24.a1 = gain; - out->antenna_gain.ghz24.a2 = gain; - out->antenna_gain.ghz24.a3 = gain; - gain = r123_extract_antgain(out->revision, in, - SSB_SPROM1_AGAIN_A, - SSB_SPROM1_AGAIN_A_SHIFT); - out->antenna_gain.ghz5.a0 = gain; - out->antenna_gain.ghz5.a1 = gain; - out->antenna_gain.ghz5.a2 = gain; - out->antenna_gain.ghz5.a3 = gain; -} - -static void sprom_extract_r4(struct ssb_sprom *out, const u16 *in) -{ - int i; - u16 v; - - /* extract the equivalent of the r1 variables */ - for (i = 0; i < 3; i++) { - v = in[SPOFF(SSB_SPROM4_IL0MAC) + i]; - *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); - } - for (i = 0; i < 3; i++) { - v = in[SPOFF(SSB_SPROM4_ET0MAC) + i]; - *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v); - } - for (i = 0; i < 3; i++) { - v = in[SPOFF(SSB_SPROM4_ET1MAC) + i]; - *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v); - } - SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0); - SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A, - SSB_SPROM4_ETHPHY_ET1A_SHIFT); - SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0); - SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0); - SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0); - SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A, - SSB_SPROM4_ANTAVAIL_A_SHIFT); - SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG, - SSB_SPROM4_ANTAVAIL_BG_SHIFT); - SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0); - SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG, - SSB_SPROM4_ITSSI_BG_SHIFT); - SPEX(maxpwr_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_MAXP_A_MASK, 0); - SPEX(itssi_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_ITSSI_A, - SSB_SPROM4_ITSSI_A_SHIFT); - SPEX(gpio0, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P0, 0); - SPEX(gpio1, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P1, - SSB_SPROM4_GPIOA_P1_SHIFT); - SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0); - SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3, - SSB_SPROM4_GPIOB_P3_SHIFT); - - /* Extract the antenna gain values. */ - SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01, - SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT); - SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01, - SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT); - SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23, - SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT); - SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23, - SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT); - memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24, - sizeof(out->antenna_gain.ghz5)); - - /* TODO - get remaining rev 4 stuff needed */ -} - -static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out, - const u16 *in, u16 size) -{ - memset(out, 0, sizeof(*out)); - - out->revision = in[size - 1] & 0x00FF; - ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision); - if ((bus->chip_id & 0xFF00) == 0x4400) { - /* Workaround: The BCM44XX chip has a stupid revision - * number stored in the SPROM. - * Always extract r1. */ - out->revision = 1; - sprom_extract_r123(out, in); - } else if (bus->chip_id == 0x4321) { - /* the BCM4328 has a chipid == 0x4321 and a rev 4 SPROM */ - out->revision = 4; - sprom_extract_r4(out, in); - } else { - if (out->revision == 0) - goto unsupported; - if (out->revision >= 1 && out->revision <= 3) { - sprom_extract_r123(out, in); - } - if (out->revision == 4) - sprom_extract_r4(out, in); - if (out->revision >= 5) - goto unsupported; - } - - return 0; -unsupported: - ssb_printk(KERN_WARNING PFX "Unsupported SPROM revision %d " - "detected. Will extract v1\n", out->revision); - sprom_extract_r123(out, in); - return 0; -} - -static int ssb_pci_sprom_get(struct ssb_bus *bus, - struct ssb_sprom *sprom) -{ - int err = -ENOMEM; - u16 *buf; - - buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL); - if (!buf) - goto out; - bus->sprom_size = SSB_SPROMSIZE_WORDS_R123; - sprom_do_read(bus, buf); - err = sprom_check_crc(buf, bus->sprom_size); - if (err) { - /* check for rev 4 sprom - has special signature */ - if (buf[32] == 0x5372) { - kfree(buf); - buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), - GFP_KERNEL); - if (!buf) - goto out; - bus->sprom_size = SSB_SPROMSIZE_WORDS_R4; - sprom_do_read(bus, buf); - err = sprom_check_crc(buf, bus->sprom_size); - } - if (err) - ssb_printk(KERN_WARNING PFX "WARNING: Invalid" - " SPROM CRC (corrupt SPROM)\n"); - } - err = sprom_extract(bus, sprom, buf, bus->sprom_size); - - kfree(buf); -out: - return err; -} - -static void ssb_pci_get_boardinfo(struct ssb_bus *bus, - struct ssb_boardinfo *bi) -{ - pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID, - &bi->vendor); - pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID, - &bi->type); - pci_read_config_word(bus->host_pci, PCI_REVISION_ID, - &bi->rev); -} - -int ssb_pci_get_invariants(struct ssb_bus *bus, - struct ssb_init_invariants *iv) -{ - int err; - - err = ssb_pci_sprom_get(bus, &iv->sprom); - if (err) - goto out; - ssb_pci_get_boardinfo(bus, &iv->boardinfo); - -out: - return err; -} - -#ifdef CONFIG_SSB_DEBUG -static int ssb_pci_assert_buspower(struct ssb_bus *bus) -{ - if (likely(bus->powered_up)) - return 0; - - printk(KERN_ERR PFX "FATAL ERROR: Bus powered down " - "while accessing PCI MMIO space\n"); - if (bus->power_warn_count <= 10) { - bus->power_warn_count++; - dump_stack(); - } - - return -ENODEV; -} -#else /* DEBUG */ -static inline int ssb_pci_assert_buspower(struct ssb_bus *bus) -{ - return 0; -} -#endif /* DEBUG */ - -static u16 ssb_pci_read16(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - - if (unlikely(ssb_pci_assert_buspower(bus))) - return 0xFFFF; - if (unlikely(bus->mapped_device != dev)) { - if (unlikely(ssb_pci_switch_core(bus, dev))) - return 0xFFFF; - } - return ioread16(bus->mmio + offset); -} - -static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - - if (unlikely(ssb_pci_assert_buspower(bus))) - return 0xFFFFFFFF; - if (unlikely(bus->mapped_device != dev)) { - if (unlikely(ssb_pci_switch_core(bus, dev))) - return 0xFFFFFFFF; - } - return ioread32(bus->mmio + offset); -} - -static void ssb_pci_write16(struct ssb_device *dev, u16 offset, u16 value) -{ - struct ssb_bus *bus = dev->bus; - - if (unlikely(ssb_pci_assert_buspower(bus))) - return; - if (unlikely(bus->mapped_device != dev)) { - if (unlikely(ssb_pci_switch_core(bus, dev))) - return; - } - iowrite16(value, bus->mmio + offset); -} - -static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value) -{ - struct ssb_bus *bus = dev->bus; - - if (unlikely(ssb_pci_assert_buspower(bus))) - return; - if (unlikely(bus->mapped_device != dev)) { - if (unlikely(ssb_pci_switch_core(bus, dev))) - return; - } - iowrite32(value, bus->mmio + offset); -} - -/* Not "static", as it's used in main.c */ -const struct ssb_bus_ops ssb_pci_ops = { - .read16 = ssb_pci_read16, - .read32 = ssb_pci_read32, - .write16 = ssb_pci_write16, - .write32 = ssb_pci_write32, -}; - -static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len, u16 size) -{ - int i, pos = 0; - - for (i = 0; i < size; i++) - pos += snprintf(buf + pos, buf_len - pos - 1, - "%04X", swab16(sprom[i]) & 0xFFFF); - pos += snprintf(buf + pos, buf_len - pos - 1, "\n"); - - return pos + 1; -} - -static int hex2sprom(u16 *sprom, const char *dump, size_t len, u16 size) -{ - char tmp[5] = { 0 }; - int cnt = 0; - unsigned long parsed; - - if (len < size * 2) - return -EINVAL; - - while (cnt < size) { - memcpy(tmp, dump, 4); - dump += 4; - parsed = simple_strtoul(tmp, NULL, 16); - sprom[cnt++] = swab16((u16)parsed); - } - - return 0; -} - -static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev, - struct device_attribute *attr, - char *buf) -{ - struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); - struct ssb_bus *bus; - u16 *sprom; - int err = -ENODEV; - ssize_t count = 0; - - bus = ssb_pci_dev_to_bus(pdev); - if (!bus) - goto out; - err = -ENOMEM; - sprom = kcalloc(bus->sprom_size, sizeof(u16), GFP_KERNEL); - if (!sprom) - goto out; - - /* Use interruptible locking, as the SPROM write might - * be holding the lock for several seconds. So allow userspace - * to cancel operation. */ - err = -ERESTARTSYS; - if (mutex_lock_interruptible(&bus->pci_sprom_mutex)) - goto out_kfree; - sprom_do_read(bus, sprom); - mutex_unlock(&bus->pci_sprom_mutex); - - count = sprom2hex(sprom, buf, PAGE_SIZE, bus->sprom_size); - err = 0; - -out_kfree: - kfree(sprom); -out: - return err ? err : count; -} - -static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); - struct ssb_bus *bus; - u16 *sprom; - int res = 0, err = -ENODEV; - - bus = ssb_pci_dev_to_bus(pdev); - if (!bus) - goto out; - err = -ENOMEM; - sprom = kcalloc(bus->sprom_size, sizeof(u16), GFP_KERNEL); - if (!sprom) - goto out; - err = hex2sprom(sprom, buf, count, bus->sprom_size); - if (err) { - err = -EINVAL; - goto out_kfree; - } - err = sprom_check_crc(sprom, bus->sprom_size); - if (err) { - err = -EINVAL; - goto out_kfree; - } - - /* Use interruptible locking, as the SPROM write might - * be holding the lock for several seconds. So allow userspace - * to cancel operation. */ - err = -ERESTARTSYS; - if (mutex_lock_interruptible(&bus->pci_sprom_mutex)) - goto out_kfree; - err = ssb_devices_freeze(bus); - if (err == -EOPNOTSUPP) { - ssb_printk(KERN_ERR PFX "SPROM write: Could not freeze devices. " - "No suspend support. Is CONFIG_PM enabled?\n"); - goto out_unlock; - } - if (err) { - ssb_printk(KERN_ERR PFX "SPROM write: Could not freeze all devices\n"); - goto out_unlock; - } - res = sprom_do_write(bus, sprom); - err = ssb_devices_thaw(bus); - if (err) - ssb_printk(KERN_ERR PFX "SPROM write: Could not thaw all devices\n"); -out_unlock: - mutex_unlock(&bus->pci_sprom_mutex); -out_kfree: - kfree(sprom); -out: - if (res) - return res; - return err ? err : count; -} - -static DEVICE_ATTR(ssb_sprom, 0600, - ssb_pci_attr_sprom_show, - ssb_pci_attr_sprom_store); - -void ssb_pci_exit(struct ssb_bus *bus) -{ - struct pci_dev *pdev; - - if (bus->bustype != SSB_BUSTYPE_PCI) - return; - - pdev = bus->host_pci; - device_remove_file(&pdev->dev, &dev_attr_ssb_sprom); -} - -int ssb_pci_init(struct ssb_bus *bus) -{ - struct pci_dev *pdev; - int err; - - if (bus->bustype != SSB_BUSTYPE_PCI) - return 0; - - pdev = bus->host_pci; - mutex_init(&bus->pci_sprom_mutex); - err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom); - if (err) - goto out; - -out: - return err; -} diff --git a/target/linux/generic-2.6/files/drivers/ssb/pcihost_wrapper.c b/target/linux/generic-2.6/files/drivers/ssb/pcihost_wrapper.c deleted file mode 100644 index 82a10ab..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/pcihost_wrapper.c +++ /dev/null @@ -1,104 +0,0 @@ -/* - * Sonics Silicon Backplane - * PCI Hostdevice wrapper - * - * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de> - * Copyright (c) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org> - * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> - * Copyright (c) 2005-2007 Michael Buesch <mbuesch@freenet.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/pci.h> -#include <linux/ssb/ssb.h> - - -#ifdef CONFIG_PM -static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state) -{ - pci_save_state(dev); - pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); - - return 0; -} - -static int ssb_pcihost_resume(struct pci_dev *dev) -{ - int err; - - pci_set_power_state(dev, 0); - err = pci_enable_device(dev); - if (err) - return err; - pci_restore_state(dev); - - return 0; -} -#else /* CONFIG_PM */ -# define ssb_pcihost_suspend NULL -# define ssb_pcihost_resume NULL -#endif /* CONFIG_PM */ - -static int ssb_pcihost_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - struct ssb_bus *ssb; - int err = -ENOMEM; - const char *name; - - ssb = kzalloc(sizeof(*ssb), GFP_KERNEL); - if (!ssb) - goto out; - err = pci_enable_device(dev); - if (err) - goto err_kfree_ssb; - name = dev->dev.bus_id; - if (dev->driver && dev->driver->name) - name = dev->driver->name; - err = pci_request_regions(dev, name); - if (err) - goto err_pci_disable; - pci_set_master(dev); - - err = ssb_bus_pcibus_register(ssb, dev); - if (err) - goto err_pci_release_regions; - - pci_set_drvdata(dev, ssb); - -out: - return err; - -err_pci_release_regions: - pci_release_regions(dev); -err_pci_disable: - pci_disable_device(dev); -err_kfree_ssb: - kfree(ssb); - return err; -} - -static void ssb_pcihost_remove(struct pci_dev *dev) -{ - struct ssb_bus *ssb = pci_get_drvdata(dev); - - ssb_bus_unregister(ssb); - pci_release_regions(dev); - pci_disable_device(dev); - kfree(ssb); - pci_set_drvdata(dev, NULL); -} - -int ssb_pcihost_register(struct pci_driver *driver) -{ - driver->probe = ssb_pcihost_probe; - driver->remove = ssb_pcihost_remove; - driver->suspend = ssb_pcihost_suspend; - driver->resume = ssb_pcihost_resume; - - return pci_register_driver(driver); -} -EXPORT_SYMBOL(ssb_pcihost_register); diff --git a/target/linux/generic-2.6/files/drivers/ssb/pcmcia.c b/target/linux/generic-2.6/files/drivers/ssb/pcmcia.c deleted file mode 100644 index 46816cd..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/pcmcia.c +++ /dev/null @@ -1,287 +0,0 @@ -/* - * Sonics Silicon Backplane - * PCMCIA-Hostbus related functions - * - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * Copyright 2007 Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/ssb/ssb.h> -#include <linux/delay.h> -#include <linux/io.h> - -#include <pcmcia/cs_types.h> -#include <pcmcia/cs.h> -#include <pcmcia/cistpl.h> -#include <pcmcia/ciscode.h> -#include <pcmcia/ds.h> -#include <pcmcia/cisreg.h> - -#include "ssb_private.h" - - -/* Define the following to 1 to enable a printk on each coreswitch. */ -#define SSB_VERBOSE_PCMCIACORESWITCH_DEBUG 0 - - -int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus, - u8 coreidx) -{ - struct pcmcia_device *pdev = bus->host_pcmcia; - int err; - int attempts = 0; - u32 cur_core; - conf_reg_t reg; - u32 addr; - u32 read_addr; - - addr = (coreidx * SSB_CORE_SIZE) + SSB_ENUM_BASE; - while (1) { - reg.Action = CS_WRITE; - reg.Offset = 0x2E; - reg.Value = (addr & 0x0000F000) >> 12; - err = pcmcia_access_configuration_register(pdev, ®); - if (err != CS_SUCCESS) - goto error; - reg.Offset = 0x30; - reg.Value = (addr & 0x00FF0000) >> 16; - err = pcmcia_access_configuration_register(pdev, ®); - if (err != CS_SUCCESS) - goto error; - reg.Offset = 0x32; - reg.Value = (addr & 0xFF000000) >> 24; - err = pcmcia_access_configuration_register(pdev, ®); - if (err != CS_SUCCESS) - goto error; - - read_addr = 0; - - reg.Action = CS_READ; - reg.Offset = 0x2E; - err = pcmcia_access_configuration_register(pdev, ®); - if (err != CS_SUCCESS) - goto error; - read_addr |= ((u32)(reg.Value & 0x0F)) << 12; - reg.Offset = 0x30; - err = pcmcia_access_configuration_register(pdev, ®); - if (err != CS_SUCCESS) - goto error; - read_addr |= ((u32)reg.Value) << 16; - reg.Offset = 0x32; - err = pcmcia_access_configuration_register(pdev, ®); - if (err != CS_SUCCESS) - goto error; - read_addr |= ((u32)reg.Value) << 24; - - cur_core = (read_addr - SSB_ENUM_BASE) / SSB_CORE_SIZE; - if (cur_core == coreidx) - break; - - if (attempts++ > SSB_BAR0_MAX_RETRIES) - goto error; - udelay(10); - } - - return 0; -error: - ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx); - return -ENODEV; -} - -int ssb_pcmcia_switch_core(struct ssb_bus *bus, - struct ssb_device *dev) -{ - int err; - -#if SSB_VERBOSE_PCMCIACORESWITCH_DEBUG - ssb_printk(KERN_INFO PFX - "Switching to %s core, index %d\n", - ssb_core_name(dev->id.coreid), - dev->core_index); -#endif - - err = ssb_pcmcia_switch_coreidx(bus, dev->core_index); - if (!err) - bus->mapped_device = dev; - - return err; -} - -int ssb_pcmcia_switch_segment(struct ssb_bus *bus, u8 seg) -{ - int attempts = 0; - conf_reg_t reg; - int res; - - SSB_WARN_ON((seg != 0) && (seg != 1)); - reg.Offset = 0x34; - reg.Function = 0; - while (1) { - reg.Action = CS_WRITE; - reg.Value = seg; - res = pcmcia_access_configuration_register(bus->host_pcmcia, ®); - if (unlikely(res != CS_SUCCESS)) - goto error; - reg.Value = 0xFF; - reg.Action = CS_READ; - res = pcmcia_access_configuration_register(bus->host_pcmcia, ®); - if (unlikely(res != CS_SUCCESS)) - goto error; - - if (reg.Value == seg) - break; - - if (unlikely(attempts++ > SSB_BAR0_MAX_RETRIES)) - goto error; - udelay(10); - } - bus->mapped_pcmcia_seg = seg; - - return 0; -error: - ssb_printk(KERN_ERR PFX "Failed to switch pcmcia segment\n"); - return -ENODEV; -} - -static int select_core_and_segment(struct ssb_device *dev, - u16 *offset) -{ - struct ssb_bus *bus = dev->bus; - int err; - u8 need_segment; - - if (*offset >= 0x800) { - *offset -= 0x800; - need_segment = 1; - } else - need_segment = 0; - - if (unlikely(dev != bus->mapped_device)) { - err = ssb_pcmcia_switch_core(bus, dev); - if (unlikely(err)) - return err; - } - if (unlikely(need_segment != bus->mapped_pcmcia_seg)) { - err = ssb_pcmcia_switch_segment(bus, need_segment); - if (unlikely(err)) - return err; - } - - return 0; -} - -static u16 ssb_pcmcia_read16(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - unsigned long flags; - int err; - u16 value = 0xFFFF; - - spin_lock_irqsave(&bus->bar_lock, flags); - err = select_core_and_segment(dev, &offset); - if (likely(!err)) - value = readw(bus->mmio + offset); - spin_unlock_irqrestore(&bus->bar_lock, flags); - - return value; -} - -static u32 ssb_pcmcia_read32(struct ssb_device *dev, u16 offset) -{ - struct ssb_bus *bus = dev->bus; - unsigned long flags; - int err; - u32 lo = 0xFFFFFFFF, hi = 0xFFFFFFFF; - - spin_lock_irqsave(&bus->bar_lock, flags); - err = select_core_and_segment(dev, &offset); - if (likely(!err)) { - lo = readw(bus->mmio + offset); - hi = readw(bus->mmio + offset + 2); - } - spin_unlock_irqrestore(&bus->bar_lock, flags); - - return (lo | (hi << 16)); -} - -static void ssb_pcmcia_write16(struct ssb_device *dev, u16 offset, u16 value) -{ - struct ssb_bus *bus = dev->bus; - unsigned long flags; - int err; - - spin_lock_irqsave(&bus->bar_lock, flags); - err = select_core_and_segment(dev, &offset); - if (likely(!err)) - writew(value, bus->mmio + offset); - mmiowb(); - spin_unlock_irqrestore(&bus->bar_lock, flags); -} - -static void ssb_pcmcia_write32(struct ssb_device *dev, u16 offset, u32 value) -{ - struct ssb_bus *bus = dev->bus; - unsigned long flags; - int err; - - spin_lock_irqsave(&bus->bar_lock, flags); - err = select_core_and_segment(dev, &offset); - if (likely(!err)) { - writew((value & 0x0000FFFF), bus->mmio + offset); - writew(((value & 0xFFFF0000) >> 16), bus->mmio + offset + 2); - } - mmiowb(); - spin_unlock_irqrestore(&bus->bar_lock, flags); -} - -/* Not "static", as it's used in main.c */ -const struct ssb_bus_ops ssb_pcmcia_ops = { - .read16 = ssb_pcmcia_read16, - .read32 = ssb_pcmcia_read32, - .write16 = ssb_pcmcia_write16, - .write32 = ssb_pcmcia_write32, -}; - -#include <linux/etherdevice.h> -int ssb_pcmcia_get_invariants(struct ssb_bus *bus, - struct ssb_init_invariants *iv) -{ - //TODO - random_ether_addr(iv->sprom.il0mac); - return 0; -} - -int ssb_pcmcia_init(struct ssb_bus *bus) -{ - conf_reg_t reg; - int err; - - if (bus->bustype != SSB_BUSTYPE_PCMCIA) - return 0; - - /* Switch segment to a known state and sync - * bus->mapped_pcmcia_seg with hardware state. */ - ssb_pcmcia_switch_segment(bus, 0); - - /* Init IRQ routing */ - reg.Action = CS_READ; - reg.Function = 0; - if (bus->chip_id == 0x4306) - reg.Offset = 0x00; - else - reg.Offset = 0x80; - err = pcmcia_access_configuration_register(bus->host_pcmcia, ®); - if (err != CS_SUCCESS) - goto error; - reg.Action = CS_WRITE; - reg.Value |= 0x04 | 0x01; - err = pcmcia_access_configuration_register(bus->host_pcmcia, ®); - if (err != CS_SUCCESS) - goto error; - - return 0; -error: - return -ENODEV; -} diff --git a/target/linux/generic-2.6/files/drivers/ssb/scan.c b/target/linux/generic-2.6/files/drivers/ssb/scan.c deleted file mode 100644 index 63ee5cf..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/scan.c +++ /dev/null @@ -1,424 +0,0 @@ -/* - * Sonics Silicon Backplane - * Bus scanning - * - * Copyright (C) 2005-2007 Michael Buesch <mb@bu3sch.de> - * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> - * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> - * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> - * Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> - * Copyright (C) 2006 Broadcom Corporation. - * - * Licensed under the GNU/GPL. See COPYING for details. - */ - -#include <linux/ssb/ssb.h> -#include <linux/ssb/ssb_regs.h> -#include <linux/pci.h> -#include <linux/io.h> - -#include <pcmcia/cs_types.h> -#include <pcmcia/cs.h> -#include <pcmcia/cistpl.h> -#include <pcmcia/ds.h> - -#include "ssb_private.h" - - -const char *ssb_core_name(u16 coreid) -{ - switch (coreid) { - case SSB_DEV_CHIPCOMMON: - return "ChipCommon"; - case SSB_DEV_ILINE20: - return "ILine 20"; - case SSB_DEV_SDRAM: - return "SDRAM"; - case SSB_DEV_PCI: - return "PCI"; - case SSB_DEV_MIPS: - return "MIPS"; - case SSB_DEV_ETHERNET: - return "Fast Ethernet"; - case SSB_DEV_V90: - return "V90"; - case SSB_DEV_USB11_HOSTDEV: - return "USB 1.1 Hostdev"; - case SSB_DEV_ADSL: - return "ADSL"; - case SSB_DEV_ILINE100: - return "ILine 100"; - case SSB_DEV_IPSEC: - return "IPSEC"; - case SSB_DEV_PCMCIA: - return "PCMCIA"; - case SSB_DEV_INTERNAL_MEM: - return "Internal Memory"; - case SSB_DEV_MEMC_SDRAM: - return "MEMC SDRAM"; - case SSB_DEV_EXTIF: - return "EXTIF"; - case SSB_DEV_80211: - return "IEEE 802.11"; - case SSB_DEV_MIPS_3302: - return "MIPS 3302"; - case SSB_DEV_USB11_HOST: - return "USB 1.1 Host"; - case SSB_DEV_USB11_DEV: - return "USB 1.1 Device"; - case SSB_DEV_USB20_HOST: - return "USB 2.0 Host"; - case SSB_DEV_USB20_DEV: - return "USB 2.0 Device"; - case SSB_DEV_SDIO_HOST: - return "SDIO Host"; - case SSB_DEV_ROBOSWITCH: - return "Roboswitch"; - case SSB_DEV_PARA_ATA: - return "PATA"; - case SSB_DEV_SATA_XORDMA: - return "SATA XOR-DMA"; - case SSB_DEV_ETHERNET_GBIT: - return "GBit Ethernet"; - case SSB_DEV_PCIE: - return "PCI-E"; - case SSB_DEV_MIMO_PHY: - return "MIMO PHY"; - case SSB_DEV_SRAM_CTRLR: - return "SRAM Controller"; - case SSB_DEV_MINI_MACPHY: - return "Mini MACPHY"; - case SSB_DEV_ARM_1176: - return "ARM 1176"; - case SSB_DEV_ARM_7TDMI: - return "ARM 7TDMI"; - } - return "UNKNOWN"; -} - -static u16 pcidev_to_chipid(struct pci_dev *pci_dev) -{ - u16 chipid_fallback = 0; - - switch (pci_dev->device) { - case 0x4301: - chipid_fallback = 0x4301; - break; - case 0x4305 ... 0x4307: - chipid_fallback = 0x4307; - break; - case 0x4403: - chipid_fallback = 0x4402; - break; - case 0x4610 ... 0x4615: - chipid_fallback = 0x4610; - break; - case 0x4710 ... 0x4715: - chipid_fallback = 0x4710; - break; - case 0x4320 ... 0x4325: - chipid_fallback = 0x4309; - break; - case PCI_DEVICE_ID_BCM4401: - case PCI_DEVICE_ID_BCM4401B0: - case PCI_DEVICE_ID_BCM4401B1: - chipid_fallback = 0x4401; - break; - default: - ssb_printk(KERN_ERR PFX - "PCI-ID not in fallback list\n"); - } - - return chipid_fallback; -} - -static u8 chipid_to_nrcores(u16 chipid) -{ - switch (chipid) { - case 0x5365: - return 7; - case 0x4306: - return 6; - case 0x4310: - return 8; - case 0x4307: - case 0x4301: - return 5; - case 0x4401: - case 0x4402: - return 3; - case 0x4710: - case 0x4610: - case 0x4704: - return 9; - default: - ssb_printk(KERN_ERR PFX - "CHIPID not in nrcores fallback list\n"); - } - - return 1; -} - -static u32 scan_read32(struct ssb_bus *bus, u8 current_coreidx, - u16 offset) -{ - switch (bus->bustype) { - case SSB_BUSTYPE_SSB: - offset += current_coreidx * SSB_CORE_SIZE; - break; - case SSB_BUSTYPE_PCI: - break; - case SSB_BUSTYPE_PCMCIA: - if (offset >= 0x800) { - ssb_pcmcia_switch_segment(bus, 1); - offset -= 0x800; - } else - ssb_pcmcia_switch_segment(bus, 0); - break; - } - return readl(bus->mmio + offset); -} - -static int scan_switchcore(struct ssb_bus *bus, u8 coreidx) -{ - switch (bus->bustype) { - case SSB_BUSTYPE_SSB: - break; - case SSB_BUSTYPE_PCI: - return ssb_pci_switch_coreidx(bus, coreidx); - case SSB_BUSTYPE_PCMCIA: - return ssb_pcmcia_switch_coreidx(bus, coreidx); - } - return 0; -} - -void ssb_iounmap(struct ssb_bus *bus) -{ - switch (bus->bustype) { - case SSB_BUSTYPE_SSB: - case SSB_BUSTYPE_PCMCIA: - iounmap(bus->mmio); - break; - case SSB_BUSTYPE_PCI: -#ifdef CONFIG_SSB_PCIHOST - pci_iounmap(bus->host_pci, bus->mmio); -#else - SSB_BUG_ON(1); /* Can't reach this code. */ -#endif - break; - } - bus->mmio = NULL; - bus->mapped_device = NULL; -} - -static void __iomem *ssb_ioremap(struct ssb_bus *bus, - unsigned long baseaddr) -{ - void __iomem *mmio = NULL; - - switch (bus->bustype) { - case SSB_BUSTYPE_SSB: - /* Only map the first core for now. */ - /* fallthrough... */ - case SSB_BUSTYPE_PCMCIA: - mmio = ioremap(baseaddr, SSB_CORE_SIZE); - break; - case SSB_BUSTYPE_PCI: -#ifdef CONFIG_SSB_PCIHOST - mmio = pci_iomap(bus->host_pci, 0, ~0UL); -#else - SSB_BUG_ON(1); /* Can't reach this code. */ -#endif - break; - } - - return mmio; -} - -static int we_support_multiple_80211_cores(struct ssb_bus *bus) -{ - /* More than one 802.11 core is only supported by special chips. - * There are chips with two 802.11 cores, but with dangling - * pins on the second core. Be careful and reject them here. - */ - -#ifdef CONFIG_SSB_PCIHOST - if (bus->bustype == SSB_BUSTYPE_PCI) { - if (bus->host_pci->vendor == PCI_VENDOR_ID_BROADCOM && - bus->host_pci->device == 0x4324) - return 1; - } -#endif /* CONFIG_SSB_PCIHOST */ - return 0; -} - -int ssb_bus_scan(struct ssb_bus *bus, - unsigned long baseaddr) -{ - int err = -ENOMEM; - void __iomem *mmio; - u32 idhi, cc, rev, tmp; - int dev_i, i; - struct ssb_device *dev; - int nr_80211_cores = 0; - - mmio = ssb_ioremap(bus, baseaddr); - if (!mmio) - goto out; - bus->mmio = mmio; - - err = scan_switchcore(bus, 0); /* Switch to first core */ - if (err) - goto err_unmap; - - idhi = scan_read32(bus, 0, SSB_IDHIGH); - cc = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT; - rev = (idhi & SSB_IDHIGH_RCLO); - rev |= (idhi & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT; - - bus->nr_devices = 0; - if (cc == SSB_DEV_CHIPCOMMON) { - tmp = scan_read32(bus, 0, SSB_CHIPCO_CHIPID); - - bus->chip_id = (tmp & SSB_CHIPCO_IDMASK); - bus->chip_rev = (tmp & SSB_CHIPCO_REVMASK) >> - SSB_CHIPCO_REVSHIFT; - bus->chip_package = (tmp & SSB_CHIPCO_PACKMASK) >> - SSB_CHIPCO_PACKSHIFT; - if (rev >= 4) { - bus->nr_devices = (tmp & SSB_CHIPCO_NRCORESMASK) >> - SSB_CHIPCO_NRCORESSHIFT; - } - tmp = scan_read32(bus, 0, SSB_CHIPCO_CAP); - bus->chipco.capabilities = tmp; - } else { - if (bus->bustype == SSB_BUSTYPE_PCI) { - bus->chip_id = pcidev_to_chipid(bus->host_pci); - pci_read_config_word(bus->host_pci, PCI_REVISION_ID, - &bus->chip_rev); - bus->chip_package = 0; - } else { - bus->chip_id = 0x4710; - bus->chip_rev = 0; - bus->chip_package = 0; - } - } - if (!bus->nr_devices) - bus->nr_devices = chipid_to_nrcores(bus->chip_id); - if (bus->nr_devices > ARRAY_SIZE(bus->devices)) { - ssb_printk(KERN_ERR PFX - "More than %d ssb cores found (%d)\n", - SSB_MAX_NR_CORES, bus->nr_devices); - goto err_unmap; - } - if (bus->bustype == SSB_BUSTYPE_SSB) { - /* Now that we know the number of cores, - * remap the whole IO space for all cores. - */ - err = -ENOMEM; - iounmap(mmio); - mmio = ioremap(baseaddr, SSB_CORE_SIZE * bus->nr_devices); - if (!mmio) - goto out; - bus->mmio = mmio; - } - - /* Fetch basic information about each core/device */ - for (i = 0, dev_i = 0; i < bus->nr_devices; i++) { - err = scan_switchcore(bus, i); - if (err) - goto err_unmap; - dev = &(bus->devices[dev_i]); - - idhi = scan_read32(bus, i, SSB_IDHIGH); - dev->id.coreid = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT; - dev->id.revision = (idhi & SSB_IDHIGH_RCLO); - dev->id.revision |= (idhi & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT; - dev->id.vendor = (idhi & SSB_IDHIGH_VC) >> SSB_IDHIGH_VC_SHIFT; - dev->core_index = i; - dev->bus = bus; - dev->ops = bus->ops; - - ssb_dprintk(KERN_INFO PFX - "Core %d found: %s " - "(cc 0x%03X, rev 0x%02X, vendor 0x%04X)\n", - i, ssb_core_name(dev->id.coreid), - dev->id.coreid, dev->id.revision, dev->id.vendor); - - switch (dev->id.coreid) { - case SSB_DEV_80211: - nr_80211_cores++; - if (nr_80211_cores > 1) { - if (!we_support_multiple_80211_cores(bus)) { - ssb_dprintk(KERN_INFO PFX "Ignoring additional " - "802.11 core\n"); - continue; - } - } - break; - case SSB_DEV_EXTIF: -#ifdef CONFIG_SSB_DRIVER_EXTIF - if (bus->extif.dev) { - ssb_printk(KERN_WARNING PFX - "WARNING: Multiple EXTIFs found\n"); - break; - } - bus->extif.dev = dev; -#endif /* CONFIG_SSB_DRIVER_EXTIF */ - break; - case SSB_DEV_CHIPCOMMON: - if (bus->chipco.dev) { - ssb_printk(KERN_WARNING PFX - "WARNING: Multiple ChipCommon found\n"); - break; - } - bus->chipco.dev = dev; - break; - case SSB_DEV_MIPS: - case SSB_DEV_MIPS_3302: -#ifdef CONFIG_SSB_DRIVER_MIPS - if (bus->mipscore.dev) { - ssb_printk(KERN_WARNING PFX - "WARNING: Multiple MIPS cores found\n"); - break; - } - bus->mipscore.dev = dev; -#endif /* CONFIG_SSB_DRIVER_MIPS */ - break; - case SSB_DEV_PCI: - case SSB_DEV_PCIE: -#ifdef CONFIG_SSB_DRIVER_PCICORE - if (bus->bustype == SSB_BUSTYPE_PCI) { - /* Ignore PCI cores on PCI-E cards. - * Ignore PCI-E cores on PCI cards. */ - if (dev->id.coreid == SSB_DEV_PCI) { - if (bus->host_pci->is_pcie) - continue; - } else { - if (!bus->host_pci->is_pcie) - continue; - } - } - if (bus->pcicore.dev) { - ssb_printk(KERN_WARNING PFX - "WARNING: Multiple PCI(E) cores found\n"); - break; - } - bus->pcicore.dev = dev; -#endif /* CONFIG_SSB_DRIVER_PCICORE */ - break; - default: - break; - } - - dev_i++; - } - bus->nr_devices = dev_i; - - err = 0; -out: - return err; -err_unmap: - ssb_iounmap(bus); - goto out; -} diff --git a/target/linux/generic-2.6/files/drivers/ssb/ssb_private.h b/target/linux/generic-2.6/files/drivers/ssb/ssb_private.h deleted file mode 100644 index a789364..0000000 --- a/target/linux/generic-2.6/files/drivers/ssb/ssb_private.h +++ /dev/null @@ -1,136 +0,0 @@ -#ifndef LINUX_SSB_PRIVATE_H_ -#define LINUX_SSB_PRIVATE_H_ - -#include <linux/ssb/ssb.h> -#include <linux/types.h> - - -#define PFX "ssb: " - -#ifdef CONFIG_SSB_SILENT -# define ssb_printk(fmt, x...) do { /* nothing */ } while (0) -#else -# define ssb_printk printk -#endif /* CONFIG_SSB_SILENT */ - -/* dprintk: Debugging printk; vanishes for non-debug compilation */ -#ifdef CONFIG_SSB_DEBUG -# define ssb_dprintk(fmt, x...) ssb_printk(fmt , ##x) -#else -# define ssb_dprintk(fmt, x...) do { /* nothing */ } while (0) -#endif - -#ifdef CONFIG_SSB_DEBUG -# define SSB_WARN_ON(x) WARN_ON(x) -# define SSB_BUG_ON(x) BUG_ON(x) -#else -static inline int __ssb_do_nothing(int x) { return x; } -# define SSB_WARN_ON(x) __ssb_do_nothing(unlikely(!!(x))) -# define SSB_BUG_ON(x) __ssb_do_nothing(unlikely(!!(x))) -#endif - - -/* pci.c */ -#ifdef CONFIG_SSB_PCIHOST -extern int ssb_pci_switch_core(struct ssb_bus *bus, - struct ssb_device *dev); -extern int ssb_pci_switch_coreidx(struct ssb_bus *bus, - u8 coreidx); -extern int ssb_pci_xtal(struct ssb_bus *bus, u32 what, - int turn_on); -extern int ssb_pci_get_invariants(struct ssb_bus *bus, - struct ssb_init_invariants *iv); -extern void ssb_pci_exit(struct ssb_bus *bus); -extern int ssb_pci_init(struct ssb_bus *bus); -extern const struct ssb_bus_ops ssb_pci_ops; - -#else /* CONFIG_SSB_PCIHOST */ - -static inline int ssb_pci_switch_core(struct ssb_bus *bus, - struct ssb_device *dev) -{ - return 0; -} -static inline int ssb_pci_switch_coreidx(struct ssb_bus *bus, - u8 coreidx) -{ - return 0; -} -static inline int ssb_pci_xtal(struct ssb_bus *bus, u32 what, - int turn_on) -{ - return 0; -} -static inline void ssb_pci_exit(struct ssb_bus *bus) -{ -} -static inline int ssb_pci_init(struct ssb_bus *bus) -{ - return 0; -} -#endif /* CONFIG_SSB_PCIHOST */ - - -/* pcmcia.c */ -#ifdef CONFIG_SSB_PCMCIAHOST -extern int ssb_pcmcia_switch_core(struct ssb_bus *bus, - struct ssb_device *dev); -extern int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus, - u8 coreidx); -extern int ssb_pcmcia_switch_segment(struct ssb_bus *bus, - u8 seg); -extern int ssb_pcmcia_get_invariants(struct ssb_bus *bus, - struct ssb_init_invariants *iv); -extern int ssb_pcmcia_init(struct ssb_bus *bus); -extern const struct ssb_bus_ops ssb_pcmcia_ops; -#else /* CONFIG_SSB_PCMCIAHOST */ -static inline int ssb_pcmcia_switch_core(struct ssb_bus *bus, - struct ssb_device *dev) -{ - return 0; -} -static inline int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus, - u8 coreidx) -{ - return 0; -} -static inline int ssb_pcmcia_switch_segment(struct ssb_bus *bus, - u8 seg) -{ - return 0; -} -static inline int ssb_pcmcia_init(struct ssb_bus *bus) -{ - return 0; -} -#endif /* CONFIG_SSB_PCMCIAHOST */ - - -/* scan.c */ -extern const char *ssb_core_name(u16 coreid); -extern int ssb_bus_scan(struct ssb_bus *bus, - unsigned long baseaddr); -extern void ssb_iounmap(struct ssb_bus *ssb); - - -/* core.c */ -extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m); -extern int ssb_devices_freeze(struct ssb_bus *bus); -extern int ssb_devices_thaw(struct ssb_bus *bus); -extern struct ssb_bus *ssb_pci_dev_to_bus(struct pci_dev *pdev); - -/* b43_pci_bridge.c */ -#ifdef CONFIG_SSB_PCIHOST -extern int __init b43_pci_ssb_bridge_init(void); -extern void __exit b43_pci_ssb_bridge_exit(void); -#else /* CONFIG_SSB_PCIHOST */ -static inline int b43_pci_ssb_bridge_init(void) -{ - return 0; -} -static inline void b43_pci_ssb_bridge_exit(void) -{ -} -#endif /* CONFIG_SSB_PCIHOST */ - -#endif /* LINUX_SSB_PRIVATE_H_ */ diff --git a/target/linux/generic-2.6/files/fs/yaffs2/Kconfig b/target/linux/generic-2.6/files/fs/yaffs2/Kconfig deleted file mode 100644 index 7b6f836..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/Kconfig +++ /dev/null @@ -1,175 +0,0 @@ -# -# YAFFS file system configurations -# - -config YAFFS_FS - tristate "YAFFS2 file system support" - default n - depends on MTD - select YAFFS_YAFFS1 - select YAFFS_YAFFS2 - help - YAFFS2, or Yet Another Flash Filing System, is a filing system - optimised for NAND Flash chips. - - To compile the YAFFS2 file system support as a module, choose M - here: the module will be called yaffs2. - - If unsure, say N. - - Further information on YAFFS2 is available at - <http://www.aleph1.co.uk/yaffs/>. - -config YAFFS_YAFFS1 - bool "512 byte / page devices" - depends on YAFFS_FS - default y - help - Enable YAFFS1 support -- yaffs for 512 byte / page devices - - Not needed for 2K-page devices. - - If unsure, say Y. - -config YAFFS_9BYTE_TAGS - bool "Use older-style on-NAND data format with pageStatus byte" - depends on YAFFS_YAFFS1 - default n - help - - Older-style on-NAND data format has a "pageStatus" byte to record - chunk/page state. This byte is zero when the page is discarded. - Choose this option if you have existing on-NAND data using this - format that you need to continue to support. New data written - also uses the older-style format. Note: Use of this option - generally requires that MTD's oob layout be adjusted to use the - older-style format. See notes on tags formats and MTD versions. - - If unsure, say N. - -config YAFFS_DOES_ECC - bool "Lets Yaffs do its own ECC" - depends on YAFFS_FS && YAFFS_YAFFS1 && !YAFFS_9BYTE_TAGS - default n - help - This enables Yaffs to use its own ECC functions instead of using - the ones from the generic MTD-NAND driver. - - If unsure, say N. - -config YAFFS_ECC_WRONG_ORDER - bool "Use the same ecc byte order as Steven Hill's nand_ecc.c" - depends on YAFFS_FS && YAFFS_DOES_ECC && !YAFFS_9BYTE_TAGS - default n - help - This makes yaffs_ecc.c use the same ecc byte order as Steven - Hill's nand_ecc.c. If not set, then you get the same ecc byte - order as SmartMedia. - - If unsure, say N. - -config YAFFS_YAFFS2 - bool "2048 byte (or larger) / page devices" - depends on YAFFS_FS - default y - help - Enable YAFFS2 support -- yaffs for >= 2K bytes per page devices - - If unsure, say Y. - -config YAFFS_AUTO_YAFFS2 - bool "Autoselect yaffs2 format" - depends on YAFFS_YAFFS2 - default y - help - Without this, you need to explicitely use yaffs2 as the file - system type. With this, you can say "yaffs" and yaffs or yaffs2 - will be used depending on the device page size (yaffs on - 512-byte page devices, yaffs2 on 2K page devices). - - If unsure, say Y. - -config YAFFS_DISABLE_LAZY_LOAD - bool "Disable lazy loading" - depends on YAFFS_YAFFS2 - default n - help - "Lazy loading" defers loading file details until they are - required. This saves mount time, but makes the first look-up - a bit longer. - - Lazy loading will only happen if enabled by this option being 'n' - and if the appropriate tags are available, else yaffs2 will - automatically fall back to immediate loading and do the right - thing. - - Lazy laoding will be required by checkpointing. - - Setting this to 'y' will disable lazy loading. - - If unsure, say N. - -config YAFFS_CHECKPOINT_RESERVED_BLOCKS - int "Reserved blocks for checkpointing" - depends on YAFFS_YAFFS2 - default 10 - help - Give the number of Blocks to reserve for checkpointing. - Checkpointing saves the state at unmount so that mounting is - much faster as a scan of all the flash to regenerate this state - is not needed. These Blocks are reserved per partition, so if - you have very small partitions the default (10) may be a mess - for you. You can set this value to 0, but that does not mean - checkpointing is disabled at all. There only won't be any - specially reserved blocks for checkpointing, so if there is - enough free space on the filesystem, it will be used for - checkpointing. - - If unsure, leave at default (10), but don't wonder if there are - always 2MB used on your large page device partition (10 x 2k - pagesize). When using small partitions or when being very small - on space, you probably want to set this to zero. - -config YAFFS_DISABLE_WIDE_TNODES - bool "Turn off wide tnodes" - depends on YAFFS_FS - default n - help - Wide tnodes are only used for NAND arrays >=32MB for 512-byte - page devices and >=128MB for 2k page devices. They use slightly - more RAM but are faster since they eliminate chunk group - searching. - - Setting this to 'y' will force tnode width to 16 bits and save - memory but make large arrays slower. - - If unsure, say N. - -config YAFFS_ALWAYS_CHECK_CHUNK_ERASED - bool "Force chunk erase check" - depends on YAFFS_FS - default n - help - Normally YAFFS only checks chunks before writing until an erased - chunk is found. This helps to detect any partially written - chunks that might have happened due to power loss. - - Enabling this forces on the test that chunks are erased in flash - before writing to them. This takes more time but is potentially - a bit more secure. - - Suggest setting Y during development and ironing out driver - issues etc. Suggest setting to N if you want faster writing. - - If unsure, say Y. - -config YAFFS_SHORT_NAMES_IN_RAM - bool "Cache short names in RAM" - depends on YAFFS_FS - default y - help - If this config is set, then short names are stored with the - yaffs_Object. This costs an extra 16 bytes of RAM per object, - but makes look-ups faster. - - If unsure, say Y. diff --git a/target/linux/generic-2.6/files/fs/yaffs2/Makefile b/target/linux/generic-2.6/files/fs/yaffs2/Makefile deleted file mode 100644 index 73f4658..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# -# Makefile for the linux YAFFS filesystem routines. -# - -obj-$(CONFIG_YAFFS_FS) += yaffs.o - -yaffs-y := yaffs_ecc.o yaffs_fs.o yaffs_guts.o yaffs_checkptrw.o -yaffs-y += yaffs_packedtags2.o yaffs_nand.o yaffs_qsort.o -yaffs-y += yaffs_tagscompat.o yaffs_tagsvalidity.o -yaffs-y += yaffs_mtdif1.o yaffs_packedtags1.o -yaffs-y += yaffs_mtdif.o yaffs_mtdif2.o diff --git a/target/linux/generic-2.6/files/fs/yaffs2/devextras.h b/target/linux/generic-2.6/files/fs/yaffs2/devextras.h deleted file mode 100644 index fcf2690..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/devextras.h +++ /dev/null @@ -1,264 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* - * This file is just holds extra declarations used during development. - * Most of these are from kernel includes placed here so we can use them in - * applications. - * - */ - -#ifndef __EXTRAS_H__ -#define __EXTRAS_H__ - -#if defined WIN32 -#define __inline__ __inline -#define new newHack -#endif - -#if !(defined __KERNEL__) || (defined WIN32) - -/* User space defines */ - -typedef unsigned char __u8; -typedef unsigned short __u16; -typedef unsigned __u32; - -/* - * Simple doubly linked list implementation. - * - * Some of the internal functions ("__xxx") are useful when - * manipulating whole lists rather than single entries, as - * sometimes we already know the next/prev entries and we can - * generate better code by using them directly rather than - * using the generic single-entry routines. - */ - -#define prefetch(x) 1 - -struct list_head { - struct list_head *next, *prev; -}; - -#define LIST_HEAD_INIT(name) { &(name), &(name) } - -#define LIST_HEAD(name) \ - struct list_head name = LIST_HEAD_INIT(name) - -#define INIT_LIST_HEAD(ptr) do { \ - (ptr)->next = (ptr); (ptr)->prev = (ptr); \ -} while (0) - -/* - * Insert a new entry between two known consecutive entries. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static __inline__ void __list_add(struct list_head *new, - struct list_head *prev, - struct list_head *next) -{ - next->prev = new; - new->next = next; - new->prev = prev; - prev->next = new; -} - -/** - * list_add - add a new entry - * @new: new entry to be added - * @head: list head to add it after - * - * Insert a new entry after the specified head. - * This is good for implementing stacks. - */ -static __inline__ void list_add(struct list_head *new, struct list_head *head) -{ - __list_add(new, head, head->next); -} - -/** - * list_add_tail - add a new entry - * @new: new entry to be added - * @head: list head to add it before - * - * Insert a new entry before the specified head. - * This is useful for implementing queues. - */ -static __inline__ void list_add_tail(struct list_head *new, - struct list_head *head) -{ - __list_add(new, head->prev, head); -} - -/* - * Delete a list entry by making the prev/next entries - * point to each other. - * - * This is only for internal list manipulation where we know - * the prev/next entries already! - */ -static __inline__ void __list_del(struct list_head *prev, - struct list_head *next) -{ - next->prev = prev; - prev->next = next; -} - -/** - * list_del - deletes entry from list. - * @entry: the element to delete from the list. - * Note: list_empty on entry does not return true after this, the entry is - * in an undefined state. - */ -static __inline__ void list_del(struct list_head *entry) -{ - __list_del(entry->prev, entry->next); -} - -/** - * list_del_init - deletes entry from list and reinitialize it. - * @entry: the element to delete from the list. - */ -static __inline__ void list_del_init(struct list_head *entry) -{ - __list_del(entry->prev, entry->next); - INIT_LIST_HEAD(entry); -} - -/** - * list_empty - tests whether a list is empty - * @head: the list to test. - */ -static __inline__ int list_empty(struct list_head *head) -{ - return head->next == head; -} - -/** - * list_splice - join two lists - * @list: the new list to add. - * @head: the place to add it in the first list. - */ -static __inline__ void list_splice(struct list_head *list, - struct list_head *head) -{ - struct list_head *first = list->next; - - if (first != list) { - struct list_head *last = list->prev; - struct list_head *at = head->next; - - first->prev = head; - head->next = first; - - last->next = at; - at->prev = last; - } -} - -/** - * list_entry - get the struct for this entry - * @ptr: the &struct list_head pointer. - * @type: the type of the struct this is embedded in. - * @member: the name of the list_struct within the struct. - */ -#define list_entry(ptr, type, member) \ - ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member))) - -/** - * list_for_each - iterate over a list - * @pos: the &struct list_head to use as a loop counter. - * @head: the head for your list. - */ -#define list_for_each(pos, head) \ - for (pos = (head)->next, prefetch(pos->next); pos != (head); \ - pos = pos->next, prefetch(pos->next)) - -/** - * list_for_each_safe - iterate over a list safe against removal - * of list entry - * @pos: the &struct list_head to use as a loop counter. - * @n: another &struct list_head to use as temporary storage - * @head: the head for your list. - */ -#define list_for_each_safe(pos, n, head) \ - for (pos = (head)->next, n = pos->next; pos != (head); \ - pos = n, n = pos->next) - -/* - * File types - */ -#define DT_UNKNOWN 0 -#define DT_FIFO 1 -#define DT_CHR 2 -#define DT_DIR 4 -#define DT_BLK 6 -#define DT_REG 8 -#define DT_LNK 10 -#define DT_SOCK 12 -#define DT_WHT 14 - -#ifndef WIN32 -#include <sys/stat.h> -#endif - -/* - * Attribute flags. These should be or-ed together to figure out what - * has been changed! - */ -#define ATTR_MODE 1 -#define ATTR_UID 2 -#define ATTR_GID 4 -#define ATTR_SIZE 8 -#define ATTR_ATIME 16 -#define ATTR_MTIME 32 -#define ATTR_CTIME 64 -#define ATTR_ATIME_SET 128 -#define ATTR_MTIME_SET 256 -#define ATTR_FORCE 512 /* Not a change, but a change it */ -#define ATTR_ATTR_FLAG 1024 - -struct iattr { - unsigned int ia_valid; - unsigned ia_mode; - unsigned ia_uid; - unsigned ia_gid; - unsigned ia_size; - unsigned ia_atime; - unsigned ia_mtime; - unsigned ia_ctime; - unsigned int ia_attr_flags; -}; - -#define KERN_DEBUG - -#else - -#ifndef WIN32 -#include <linux/types.h> -#include <linux/list.h> -#include <linux/fs.h> -#include <linux/stat.h> -#endif - -#endif - -#if defined WIN32 -#undef new -#endif - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/moduleconfig.h b/target/linux/generic-2.6/files/fs/yaffs2/moduleconfig.h deleted file mode 100644 index 016391c..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/moduleconfig.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Martin Fouts <Martin.Fouts@palmsource.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_CONFIG_H__ -#define __YAFFS_CONFIG_H__ - -#ifdef YAFFS_OUT_OF_TREE - -/* DO NOT UNSET THESE THREE. YAFFS2 will not compile if you do. */ -#define CONFIG_YAFFS_FS -#define CONFIG_YAFFS_YAFFS1 -#define CONFIG_YAFFS_YAFFS2 - -/* These options are independent of each other. Select those that matter. */ - -/* Default: Not selected */ -/* Meaning: Yaffs does its own ECC, rather than using MTD ECC */ -//#define CONFIG_YAFFS_DOES_ECC - -/* Default: Not selected */ -/* Meaning: ECC byte order is 'wrong'. Only meaningful if */ -/* CONFIG_YAFFS_DOES_ECC is set */ -//#define CONFIG_YAFFS_ECC_WRONG_ORDER - -/* Default: Selected */ -/* Meaning: Disables testing whether chunks are erased before writing to them*/ -#define CONFIG_YAFFS_DISABLE_CHUNK_ERASED_CHECK - -/* Default: Selected */ -/* Meaning: Cache short names, taking more RAM, but faster look-ups */ -#define CONFIG_YAFFS_SHORT_NAMES_IN_RAM - -/* Default: 10 */ -/* Meaning: set the count of blocks to reserve for checkpointing */ -#define CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS 10 - -/* -Older-style on-NAND data format has a "pageStatus" byte to record -chunk/page state. This byte is zeroed when the page is discarded. -Choose this option if you have existing on-NAND data in this format -that you need to continue to support. New data written also uses the -older-style format. -Note: Use of this option generally requires that MTD's oob layout be -adjusted to use the older-style format. See notes on tags formats and -MTD versions. -*/ -/* Default: Not selected */ -/* Meaning: Use older-style on-NAND data format with pageStatus byte */ -#define CONFIG_YAFFS_9BYTE_TAGS - -#endif /* YAFFS_OUT_OF_TREE */ - -#endif /* __YAFFS_CONFIG_H__ */ diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.c deleted file mode 100644 index 933a33f..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_checkptrw_c_version = - "$Id: yaffs_checkptrw.c,v 1.14 2007-05-15 20:07:40 charles Exp $"; - - -#include "yaffs_checkptrw.h" - - -static int yaffs_CheckpointSpaceOk(yaffs_Device *dev) -{ - - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("checkpt blocks available = %d" TENDSTR), - blocksAvailable)); - - - return (blocksAvailable <= 0) ? 0 : 1; -} - - -static int yaffs_CheckpointErase(yaffs_Device *dev) -{ - - int i; - - - if(!dev->eraseBlockInNAND) - return 0; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR), - dev->internalStartBlock,dev->internalEndBlock)); - - for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); - if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i)); - if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){ - bi->blockState = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } - else { - dev->markNANDBlockBad(dev,i); - bi->blockState = YAFFS_BLOCK_STATE_DEAD; - } - } - } - - dev->blocksInCheckpoint = 0; - - return 1; -} - - -static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev) -{ - int i; - int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks; - T(YAFFS_TRACE_CHECKPOINT, - (TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR), - dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock)); - - if(dev->checkpointNextBlock >= 0 && - dev->checkpointNextBlock <= dev->internalEndBlock && - blocksAvailable > 0){ - - for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); - if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){ - dev->checkpointNextBlock = i + 1; - dev->checkpointCurrentBlock = i; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i)); - return; - } - } - } - T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR))); - - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; -} - -static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev) -{ - int i; - yaffs_ExtendedTags tags; - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start: blocks %d next %d" TENDSTR), - dev->blocksInCheckpoint, dev->checkpointNextBlock)); - - if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks) - for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){ - int chunk = i * dev->nChunksPerBlock; - int realignedChunk = chunk - dev->chunkOffset; - - dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags); - T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR), - i, tags.objectId,tags.sequenceNumber,tags.eccResult)); - - if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){ - /* Right kind of block */ - dev->checkpointNextBlock = tags.objectId; - dev->checkpointCurrentBlock = i; - dev->checkpointBlockList[dev->blocksInCheckpoint] = i; - dev->blocksInCheckpoint++; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i)); - return; - } - } - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR))); - - dev->checkpointNextBlock = -1; - dev->checkpointCurrentBlock = -1; -} - - -int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting) -{ - - /* Got the functions we need? */ - if (!dev->writeChunkWithTagsToNAND || - !dev->readChunkWithTagsFromNAND || - !dev->eraseBlockInNAND || - !dev->markNANDBlockBad) - return 0; - - if(forWriting && !yaffs_CheckpointSpaceOk(dev)) - return 0; - - if(!dev->checkpointBuffer) - dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk); - if(!dev->checkpointBuffer) - return 0; - - - dev->checkpointPageSequence = 0; - - dev->checkpointOpenForWrite = forWriting; - - dev->checkpointByteCount = 0; - dev->checkpointSum = 0; - dev->checkpointXor = 0; - dev->checkpointCurrentBlock = -1; - dev->checkpointCurrentChunk = -1; - dev->checkpointNextBlock = dev->internalStartBlock; - - /* Erase all the blocks in the checkpoint area */ - if(forWriting){ - memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); - dev->checkpointByteOffset = 0; - return yaffs_CheckpointErase(dev); - - - } else { - int i; - /* Set to a value that will kick off a read */ - dev->checkpointByteOffset = dev->nDataBytesPerChunk; - /* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully) - * going to be way more than we need */ - dev->blocksInCheckpoint = 0; - dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2; - dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks); - for(i = 0; i < dev->checkpointMaxBlocks; i++) - dev->checkpointBlockList[i] = -1; - } - - return 1; -} - -int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum) -{ - __u32 compositeSum; - compositeSum = (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF); - *sum = compositeSum; - return 1; -} - -static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev) -{ - - int chunk; - int realignedChunk; - - yaffs_ExtendedTags tags; - - if(dev->checkpointCurrentBlock < 0){ - yaffs_CheckpointFindNextErasedBlock(dev); - dev->checkpointCurrentChunk = 0; - } - - if(dev->checkpointCurrentBlock < 0) - return 0; - - tags.chunkDeleted = 0; - tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */ - tags.chunkId = dev->checkpointPageSequence + 1; - tags.sequenceNumber = YAFFS_SEQUENCE_CHECKPOINT_DATA; - tags.byteCount = dev->nDataBytesPerChunk; - if(dev->checkpointCurrentChunk == 0){ - /* First chunk we write for the block? Set block state to - checkpoint */ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock); - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - dev->blocksInCheckpoint++; - } - - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk; - - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR), - chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId)); - - realignedChunk = chunk - dev->chunkOffset; - - dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags); - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; - if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){ - dev->checkpointCurrentChunk = 0; - dev->checkpointCurrentBlock = -1; - } - memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk); - - return 1; -} - - -int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes) -{ - int i=0; - int ok = 1; - - - __u8 * dataBytes = (__u8 *)data; - - - - if(!dev->checkpointBuffer) - return 0; - - if(!dev->checkpointOpenForWrite) - return -1; - - while(i < nBytes && ok) { - - - - dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; - - dev->checkpointByteOffset++; - i++; - dataBytes++; - dev->checkpointByteCount++; - - - if(dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) - ok = yaffs_CheckpointFlushBuffer(dev); - - } - - return i; -} - -int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes) -{ - int i=0; - int ok = 1; - yaffs_ExtendedTags tags; - - - int chunk; - int realignedChunk; - - __u8 *dataBytes = (__u8 *)data; - - if(!dev->checkpointBuffer) - return 0; - - if(dev->checkpointOpenForWrite) - return -1; - - while(i < nBytes && ok) { - - - if(dev->checkpointByteOffset < 0 || - dev->checkpointByteOffset >= dev->nDataBytesPerChunk) { - - if(dev->checkpointCurrentBlock < 0){ - yaffs_CheckpointFindNextCheckpointBlock(dev); - dev->checkpointCurrentChunk = 0; - } - - if(dev->checkpointCurrentBlock < 0) - ok = 0; - else { - - chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + - dev->checkpointCurrentChunk; - - realignedChunk = chunk - dev->chunkOffset; - - /* read in the next chunk */ - /* printf("read checkpoint page %d\n",dev->checkpointPage); */ - dev->readChunkWithTagsFromNAND(dev, realignedChunk, - dev->checkpointBuffer, - &tags); - - if(tags.chunkId != (dev->checkpointPageSequence + 1) || - tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA) - ok = 0; - - dev->checkpointByteOffset = 0; - dev->checkpointPageSequence++; - dev->checkpointCurrentChunk++; - - if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock) - dev->checkpointCurrentBlock = -1; - } - } - - if(ok){ - *dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset]; - dev->checkpointSum += *dataBytes; - dev->checkpointXor ^= *dataBytes; - dev->checkpointByteOffset++; - i++; - dataBytes++; - dev->checkpointByteCount++; - } - } - - return i; -} - -int yaffs_CheckpointClose(yaffs_Device *dev) -{ - - if(dev->checkpointOpenForWrite){ - if(dev->checkpointByteOffset != 0) - yaffs_CheckpointFlushBuffer(dev); - } else { - int i; - for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]); - if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY) - bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT; - else { - // Todo this looks odd... - } - } - YFREE(dev->checkpointBlockList); - dev->checkpointBlockList = NULL; - } - - dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock; - dev->nErasedBlocks -= dev->blocksInCheckpoint; - - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR), - dev->checkpointByteCount)); - - if(dev->checkpointBuffer){ - /* free the buffer */ - YFREE(dev->checkpointBuffer); - dev->checkpointBuffer = NULL; - return 1; - } - else - return 0; - -} - -int yaffs_CheckpointInvalidateStream(yaffs_Device *dev) -{ - /* Erase the first checksum block */ - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR))); - - if(!yaffs_CheckpointSpaceOk(dev)) - return 0; - - return yaffs_CheckpointErase(dev); -} - - - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.h deleted file mode 100644 index d3ff174..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_CHECKPTRW_H__ -#define __YAFFS_CHECKPTRW_H__ - -#include "yaffs_guts.h" - -int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting); - -int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes); - -int yaffs_CheckpointRead(yaffs_Device *dev,void *data, int nBytes); - -int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum); - -int yaffs_CheckpointClose(yaffs_Device *dev); - -int yaffs_CheckpointInvalidateStream(yaffs_Device *dev); - - -#endif - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_ecc.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_ecc.c deleted file mode 100644 index e286039..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_ecc.c +++ /dev/null @@ -1,331 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * This code implements the ECC algorithm used in SmartMedia. - * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. - * The two unused bit are set to 1. - * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC - * blocks are used on a 512-byte NAND page. - * - */ - -/* Table generated by gen-ecc.c - * Using a table means we do not have to calculate p1..p4 and p1'..p4' - * for each byte of data. These are instead provided in a table in bits7..2. - * Bit 0 of each entry indicates whether the entry has an odd or even parity, and therefore - * this bytes influence on the line parity. - */ - -const char *yaffs_ecc_c_version = - "$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 wookey Exp $"; - -#include "yportenv.h" - -#include "yaffs_ecc.h" - -static const unsigned char column_parity_table[] = { - 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, - 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, - 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, - 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, - 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, - 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, - 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, - 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, - 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, - 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, - 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, - 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, - 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, - 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, - 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, - 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, - 0xa9, 0xfc, 0xf0, 0xa5, 0xcc, 0x99, 0x95, 0xc0, - 0xc0, 0x95, 0x99, 0xcc, 0xa5, 0xf0, 0xfc, 0xa9, - 0x3c, 0x69, 0x65, 0x30, 0x59, 0x0c, 0x00, 0x55, - 0x55, 0x00, 0x0c, 0x59, 0x30, 0x65, 0x69, 0x3c, - 0x30, 0x65, 0x69, 0x3c, 0x55, 0x00, 0x0c, 0x59, - 0x59, 0x0c, 0x00, 0x55, 0x3c, 0x69, 0x65, 0x30, - 0xa5, 0xf0, 0xfc, 0xa9, 0xc0, 0x95, 0x99, 0xcc, - 0xcc, 0x99, 0x95, 0xc0, 0xa9, 0xfc, 0xf0, 0xa5, - 0x0c, 0x59, 0x55, 0x00, 0x69, 0x3c, 0x30, 0x65, - 0x65, 0x30, 0x3c, 0x69, 0x00, 0x55, 0x59, 0x0c, - 0x99, 0xcc, 0xc0, 0x95, 0xfc, 0xa9, 0xa5, 0xf0, - 0xf0, 0xa5, 0xa9, 0xfc, 0x95, 0xc0, 0xcc, 0x99, - 0x95, 0xc0, 0xcc, 0x99, 0xf0, 0xa5, 0xa9, 0xfc, - 0xfc, 0xa9, 0xa5, 0xf0, 0x99, 0xcc, 0xc0, 0x95, - 0x00, 0x55, 0x59, 0x0c, 0x65, 0x30, 0x3c, 0x69, - 0x69, 0x3c, 0x30, 0x65, 0x0c, 0x59, 0x55, 0x00, -}; - -/* Count the bits in an unsigned char or a U32 */ - -static int yaffs_CountBits(unsigned char x) -{ - int r = 0; - while (x) { - if (x & 1) - r++; - x >>= 1; - } - return r; -} - -static int yaffs_CountBits32(unsigned x) -{ - int r = 0; - while (x) { - if (x & 1) - r++; - x >>= 1; - } - return r; -} - -/* Calculate the ECC for a 256-byte block of data */ -void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc) -{ - unsigned int i; - - unsigned char col_parity = 0; - unsigned char line_parity = 0; - unsigned char line_parity_prime = 0; - unsigned char t; - unsigned char b; - - for (i = 0; i < 256; i++) { - b = column_parity_table[*data++]; - col_parity ^= b; - - if (b & 0x01) // odd number of bits in the byte - { - line_parity ^= i; - line_parity_prime ^= ~i; - } - - } - - ecc[2] = (~col_parity) | 0x03; - - t = 0; - if (line_parity & 0x80) - t |= 0x80; - if (line_parity_prime & 0x80) - t |= 0x40; - if (line_parity & 0x40) - t |= 0x20; - if (line_parity_prime & 0x40) - t |= 0x10; - if (line_parity & 0x20) - t |= 0x08; - if (line_parity_prime & 0x20) - t |= 0x04; - if (line_parity & 0x10) - t |= 0x02; - if (line_parity_prime & 0x10) - t |= 0x01; - ecc[1] = ~t; - - t = 0; - if (line_parity & 0x08) - t |= 0x80; - if (line_parity_prime & 0x08) - t |= 0x40; - if (line_parity & 0x04) - t |= 0x20; - if (line_parity_prime & 0x04) - t |= 0x10; - if (line_parity & 0x02) - t |= 0x08; - if (line_parity_prime & 0x02) - t |= 0x04; - if (line_parity & 0x01) - t |= 0x02; - if (line_parity_prime & 0x01) - t |= 0x01; - ecc[0] = ~t; - -#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER - // Swap the bytes into the wrong order - t = ecc[0]; - ecc[0] = ecc[1]; - ecc[1] = t; -#endif -} - - -/* Correct the ECC on a 256 byte block of data */ - -int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc) -{ - unsigned char d0, d1, d2; /* deltas */ - - d0 = read_ecc[0] ^ test_ecc[0]; - d1 = read_ecc[1] ^ test_ecc[1]; - d2 = read_ecc[2] ^ test_ecc[2]; - - if ((d0 | d1 | d2) == 0) - return 0; /* no error */ - - if (((d0 ^ (d0 >> 1)) & 0x55) == 0x55 && - ((d1 ^ (d1 >> 1)) & 0x55) == 0x55 && - ((d2 ^ (d2 >> 1)) & 0x54) == 0x54) { - /* Single bit (recoverable) error in data */ - - unsigned byte; - unsigned bit; - -#ifdef CONFIG_YAFFS_ECC_WRONG_ORDER - // swap the bytes to correct for the wrong order - unsigned char t; - - t = d0; - d0 = d1; - d1 = t; -#endif - - bit = byte = 0; - - if (d1 & 0x80) - byte |= 0x80; - if (d1 & 0x20) - byte |= 0x40; - if (d1 & 0x08) - byte |= 0x20; - if (d1 & 0x02) - byte |= 0x10; - if (d0 & 0x80) - byte |= 0x08; - if (d0 & 0x20) - byte |= 0x04; - if (d0 & 0x08) - byte |= 0x02; - if (d0 & 0x02) - byte |= 0x01; - - if (d2 & 0x80) - bit |= 0x04; - if (d2 & 0x20) - bit |= 0x02; - if (d2 & 0x08) - bit |= 0x01; - - data[byte] ^= (1 << bit); - - return 1; /* Corrected the error */ - } - - if ((yaffs_CountBits(d0) + - yaffs_CountBits(d1) + - yaffs_CountBits(d2)) == 1) { - /* Reccoverable error in ecc */ - - read_ecc[0] = test_ecc[0]; - read_ecc[1] = test_ecc[1]; - read_ecc[2] = test_ecc[2]; - - return 1; /* Corrected the error */ - } - - /* Unrecoverable error */ - - return -1; - -} - - -/* - * ECCxxxOther does ECC calcs on arbitrary n bytes of data - */ -void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, - yaffs_ECCOther * eccOther) -{ - unsigned int i; - - unsigned char col_parity = 0; - unsigned line_parity = 0; - unsigned line_parity_prime = 0; - unsigned char b; - - for (i = 0; i < nBytes; i++) { - b = column_parity_table[*data++]; - col_parity ^= b; - - if (b & 0x01) { - /* odd number of bits in the byte */ - line_parity ^= i; - line_parity_prime ^= ~i; - } - - } - - eccOther->colParity = (col_parity >> 2) & 0x3f; - eccOther->lineParity = line_parity; - eccOther->lineParityPrime = line_parity_prime; -} - -int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, - yaffs_ECCOther * read_ecc, - const yaffs_ECCOther * test_ecc) -{ - unsigned char cDelta; /* column parity delta */ - unsigned lDelta; /* line parity delta */ - unsigned lDeltaPrime; /* line parity delta */ - unsigned bit; - - cDelta = read_ecc->colParity ^ test_ecc->colParity; - lDelta = read_ecc->lineParity ^ test_ecc->lineParity; - lDeltaPrime = read_ecc->lineParityPrime ^ test_ecc->lineParityPrime; - - if ((cDelta | lDelta | lDeltaPrime) == 0) - return 0; /* no error */ - - if (lDelta == ~lDeltaPrime && - (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) - { - /* Single bit (recoverable) error in data */ - - bit = 0; - - if (cDelta & 0x20) - bit |= 0x04; - if (cDelta & 0x08) - bit |= 0x02; - if (cDelta & 0x02) - bit |= 0x01; - - if(lDelta >= nBytes) - return -1; - - data[lDelta] ^= (1 << bit); - - return 1; /* corrected */ - } - - if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) + - yaffs_CountBits(cDelta)) == 1) { - /* Reccoverable error in ecc */ - - *read_ecc = *test_ecc; - return 1; /* corrected */ - } - - /* Unrecoverable error */ - - return -1; - -} - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_ecc.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_ecc.h deleted file mode 100644 index 79bc3d1..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_ecc.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - /* - * This code implements the ECC algorithm used in SmartMedia. - * - * The ECC comprises 22 bits of parity information and is stuffed into 3 bytes. - * The two unused bit are set to 1. - * The ECC can correct single bit errors in a 256-byte page of data. Thus, two such ECC - * blocks are used on a 512-byte NAND page. - * - */ - -#ifndef __YAFFS_ECC_H__ -#define __YAFFS_ECC_H__ - -typedef struct { - unsigned char colParity; - unsigned lineParity; - unsigned lineParityPrime; -} yaffs_ECCOther; - -void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc); -int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc, - const unsigned char *test_ecc); - -void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes, - yaffs_ECCOther * ecc); -int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes, - yaffs_ECCOther * read_ecc, - const yaffs_ECCOther * test_ecc); -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_fs.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_fs.c deleted file mode 100644 index 67001b1..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_fs.c +++ /dev/null @@ -1,2299 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * Acknowledgements: - * Luc van OostenRyck for numerous patches. - * Nick Bane for numerous patches. - * Nick Bane for 2.5/2.6 integration. - * Andras Toth for mknod rdev issue. - * Michael Fischer for finding the problem with inode inconsistency. - * Some code bodily lifted from JFFS - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * - * This is the file system front-end to YAFFS that hooks it up to - * the VFS. - * - * Special notes: - * >> 2.4: sb->u.generic_sbp points to the yaffs_Device associated with - * this superblock - * >> 2.6: sb->s_fs_info points to the yaffs_Device associated with this - * superblock - * >> inode->u.generic_ip points to the associated yaffs_Object. - */ - -const char *yaffs_fs_c_version = - "$Id: yaffs_fs.c,v 1.63 2007-09-19 20:35:40 imcd Exp $"; -extern const char *yaffs_guts_c_version; - -#include <linux/version.h> -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) -#include <linux/config.h> -#endif -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/list.h> -#include <linux/fs.h> -#include <linux/proc_fs.h> -#include <linux/smp_lock.h> -#include <linux/pagemap.h> -#include <linux/mtd/mtd.h> -#include <linux/interrupt.h> -#include <linux/string.h> -#include <linux/ctype.h> - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - -#include <linux/statfs.h> /* Added NCB 15-8-2003 */ -#include <asm/statfs.h> -#define UnlockPage(p) unlock_page(p) -#define Page_Uptodate(page) test_bit(PG_uptodate, &(page)->flags) - -/* FIXME: use sb->s_id instead ? */ -#define yaffs_devname(sb, buf) bdevname(sb->s_bdev, buf) - -#else - -#include <linux/locks.h> -#define BDEVNAME_SIZE 0 -#define yaffs_devname(sb, buf) kdevname(sb->s_dev) - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)) -/* added NCB 26/5/2006 for 2.4.25-vrs2-tcl1 kernel */ -#define __user -#endif - -#endif - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -#define WRITE_SIZE_STR "writesize" -#define WRITE_SIZE(mtd) (mtd)->writesize -#else -#define WRITE_SIZE_STR "oobblock" -#define WRITE_SIZE(mtd) (mtd)->oobblock -#endif - -#include <asm/uaccess.h> - -#include "yportenv.h" -#include "yaffs_guts.h" - -#include <linux/mtd/mtd.h> -#include "yaffs_mtdif.h" -#include "yaffs_mtdif1.h" -#include "yaffs_mtdif2.h" - -unsigned int yaffs_traceMask = YAFFS_TRACE_BAD_BLOCKS; -unsigned int yaffs_wr_attempts = YAFFS_WR_ATTEMPTS; - -/* Module Parameters */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -module_param(yaffs_traceMask,uint,0644); -module_param(yaffs_wr_attempts,uint,0644); -#else -MODULE_PARM(yaffs_traceMask,"i"); -MODULE_PARM(yaffs_wr_attempts,"i"); -#endif - -/*#define T(x) printk x */ - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) -#define yaffs_InodeToObjectLV(iptr) (iptr)->i_private -#else -#define yaffs_InodeToObjectLV(iptr) (iptr)->u.generic_ip -#endif - -#define yaffs_InodeToObject(iptr) ((yaffs_Object *)(yaffs_InodeToObjectLV(iptr))) -#define yaffs_DentryToObject(dptr) yaffs_InodeToObject((dptr)->d_inode) - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->s_fs_info) -#else -#define yaffs_SuperToDevice(sb) ((yaffs_Device *)sb->u.generic_sbp) -#endif - -static void yaffs_put_super(struct super_block *sb); - -static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, - loff_t * pos); - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_file_flush(struct file *file, fl_owner_t id); -#else -static int yaffs_file_flush(struct file *file); -#endif - -static int yaffs_sync_object(struct file *file, struct dentry *dentry, - int datasync); - -static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir); - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, - struct nameidata *n); -static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, - struct nameidata *n); -#else -static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode); -static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry); -#endif -static int yaffs_link(struct dentry *old_dentry, struct inode *dir, - struct dentry *dentry); -static int yaffs_unlink(struct inode *dir, struct dentry *dentry); -static int yaffs_symlink(struct inode *dir, struct dentry *dentry, - const char *symname); -static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode); - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, - dev_t dev); -#else -static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, - int dev); -#endif -static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry); -static int yaffs_setattr(struct dentry *dentry, struct iattr *attr); - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_sync_fs(struct super_block *sb, int wait); -static void yaffs_write_super(struct super_block *sb); -#else -static int yaffs_sync_fs(struct super_block *sb); -static int yaffs_write_super(struct super_block *sb); -#endif - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf); -#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf); -#else -static int yaffs_statfs(struct super_block *sb, struct statfs *buf); -#endif -static void yaffs_read_inode(struct inode *inode); - -static void yaffs_put_inode(struct inode *inode); -static void yaffs_delete_inode(struct inode *); -static void yaffs_clear_inode(struct inode *); - -static int yaffs_readpage(struct file *file, struct page *page); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_writepage(struct page *page, struct writeback_control *wbc); -#else -static int yaffs_writepage(struct page *page); -#endif -static int yaffs_prepare_write(struct file *f, struct page *pg, - unsigned offset, unsigned to); -static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, - unsigned to); - -static int yaffs_readlink(struct dentry *dentry, char __user * buffer, - int buflen); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); -#else -static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd); -#endif - -static struct address_space_operations yaffs_file_address_operations = { - .readpage = yaffs_readpage, - .writepage = yaffs_writepage, - .prepare_write = yaffs_prepare_write, - .commit_write = yaffs_commit_write, -}; - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)) -static struct file_operations yaffs_file_operations = { - .read = do_sync_read, - .write = do_sync_write, - .aio_read = generic_file_aio_read, - .aio_write = generic_file_aio_write, - .mmap = generic_file_mmap, - .flush = yaffs_file_flush, - .fsync = yaffs_sync_object, - .splice_read = generic_file_splice_read, - .splice_write = generic_file_splice_write, -}; - -#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)) - -static struct file_operations yaffs_file_operations = { - .read = do_sync_read, - .write = do_sync_write, - .aio_read = generic_file_aio_read, - .aio_write = generic_file_aio_write, - .mmap = generic_file_mmap, - .flush = yaffs_file_flush, - .fsync = yaffs_sync_object, - .sendfile = generic_file_sendfile, -}; - -#else - -static struct file_operations yaffs_file_operations = { - .read = generic_file_read, - .write = generic_file_write, - .mmap = generic_file_mmap, - .flush = yaffs_file_flush, - .fsync = yaffs_sync_object, -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - .sendfile = generic_file_sendfile, -#endif -}; -#endif - -static struct inode_operations yaffs_file_inode_operations = { - .setattr = yaffs_setattr, -}; - -static struct inode_operations yaffs_symlink_inode_operations = { - .readlink = yaffs_readlink, - .follow_link = yaffs_follow_link, - .setattr = yaffs_setattr, -}; - -static struct inode_operations yaffs_dir_inode_operations = { - .create = yaffs_create, - .lookup = yaffs_lookup, - .link = yaffs_link, - .unlink = yaffs_unlink, - .symlink = yaffs_symlink, - .mkdir = yaffs_mkdir, - .rmdir = yaffs_unlink, - .mknod = yaffs_mknod, - .rename = yaffs_rename, - .setattr = yaffs_setattr, -}; - -static struct file_operations yaffs_dir_operations = { - .read = generic_read_dir, - .readdir = yaffs_readdir, - .fsync = yaffs_sync_object, -}; - -static struct super_operations yaffs_super_ops = { - .statfs = yaffs_statfs, - .read_inode = yaffs_read_inode, - .put_inode = yaffs_put_inode, - .put_super = yaffs_put_super, - .delete_inode = yaffs_delete_inode, - .clear_inode = yaffs_clear_inode, - .sync_fs = yaffs_sync_fs, - .write_super = yaffs_write_super, -}; - -static void yaffs_GrossLock(yaffs_Device * dev) -{ - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs locking\n")); - - down(&dev->grossLock); -} - -static void yaffs_GrossUnlock(yaffs_Device * dev) -{ - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs unlocking\n")); - up(&dev->grossLock); - -} - -static int yaffs_readlink(struct dentry *dentry, char __user * buffer, - int buflen) -{ - unsigned char *alias; - int ret; - - yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; - - yaffs_GrossLock(dev); - - alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry)); - - yaffs_GrossUnlock(dev); - - if (!alias) - return -ENOMEM; - - ret = vfs_readlink(dentry, buffer, buflen, alias); - kfree(alias); - return ret; -} - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) -static void *yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -#else -static int yaffs_follow_link(struct dentry *dentry, struct nameidata *nd) -#endif -{ - unsigned char *alias; - int ret; - yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; - - yaffs_GrossLock(dev); - - alias = yaffs_GetSymlinkAlias(yaffs_DentryToObject(dentry)); - - yaffs_GrossUnlock(dev); - - if (!alias) - { - ret = -ENOMEM; - goto out; - } - - ret = vfs_follow_link(nd, alias); - kfree(alias); -out: -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) - return ERR_PTR (ret); -#else - return ret; -#endif -} - -struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, - yaffs_Object * obj); - -/* - * Lookup is used to find objects in the fs - */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - -static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry, - struct nameidata *n) -#else -static struct dentry *yaffs_lookup(struct inode *dir, struct dentry *dentry) -#endif -{ - yaffs_Object *obj; - struct inode *inode = NULL; /* NCB 2.5/2.6 needs NULL here */ - - yaffs_Device *dev = yaffs_InodeToObject(dir)->myDev; - - yaffs_GrossLock(dev); - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_lookup for %d:%s\n", - yaffs_InodeToObject(dir)->objectId, dentry->d_name.name)); - - obj = - yaffs_FindObjectByName(yaffs_InodeToObject(dir), - dentry->d_name.name); - - obj = yaffs_GetEquivalentObject(obj); /* in case it was a hardlink */ - - /* Can't hold gross lock when calling yaffs_get_inode() */ - yaffs_GrossUnlock(dev); - - if (obj) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_lookup found %d\n", obj->objectId)); - - inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); - - if (inode) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_loookup dentry \n")); -/* #if 0 asserted by NCB for 2.5/6 compatability - falls through to - * d_add even if NULL inode */ -#if 0 - /*dget(dentry); // try to solve directory bug */ - d_add(dentry, inode); - - /* return dentry; */ - return NULL; -#endif - } - - } else { - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_lookup not found\n")); - - } - -/* added NCB for 2.5/6 compatability - forces add even if inode is - * NULL which creates dentry hash */ - d_add(dentry, inode); - - return NULL; - /* return (ERR_PTR(-EIO)); */ - -} - -/* For now put inode is just for debugging - * Put inode is called when the inode **structure** is put. - */ -static void yaffs_put_inode(struct inode *inode) -{ - T(YAFFS_TRACE_OS, - ("yaffs_put_inode: ino %d, count %d\n", (int)inode->i_ino, - atomic_read(&inode->i_count))); - -} - -/* clear is called to tell the fs to release any per-inode data it holds */ -static void yaffs_clear_inode(struct inode *inode) -{ - yaffs_Object *obj; - yaffs_Device *dev; - - obj = yaffs_InodeToObject(inode); - - T(YAFFS_TRACE_OS, - ("yaffs_clear_inode: ino %d, count %d %s\n", (int)inode->i_ino, - atomic_read(&inode->i_count), - obj ? "object exists" : "null object")); - - if (obj) { - dev = obj->myDev; - yaffs_GrossLock(dev); - - /* Clear the association between the inode and - * the yaffs_Object. - */ - obj->myInode = NULL; - yaffs_InodeToObjectLV(inode) = NULL; - - /* If the object freeing was deferred, then the real - * free happens now. - * This should fix the inode inconsistency problem. - */ - - yaffs_HandleDeferedFree(obj); - - yaffs_GrossUnlock(dev); - } - -} - -/* delete is called when the link count is zero and the inode - * is put (ie. nobody wants to know about it anymore, time to - * delete the file). - * NB Must call clear_inode() - */ -static void yaffs_delete_inode(struct inode *inode) -{ - yaffs_Object *obj = yaffs_InodeToObject(inode); - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, - ("yaffs_delete_inode: ino %d, count %d %s\n", (int)inode->i_ino, - atomic_read(&inode->i_count), - obj ? "object exists" : "null object")); - - if (obj) { - dev = obj->myDev; - yaffs_GrossLock(dev); - yaffs_DeleteFile(obj); - yaffs_GrossUnlock(dev); - } -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,13)) - truncate_inode_pages (&inode->i_data, 0); -#endif - clear_inode(inode); -} - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_file_flush(struct file *file, fl_owner_t id) -#else -static int yaffs_file_flush(struct file *file) -#endif -{ - yaffs_Object *obj = yaffs_DentryToObject(file->f_dentry); - - yaffs_Device *dev = obj->myDev; - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_file_flush object %d (%s)\n", obj->objectId, - obj->dirty ? "dirty" : "clean")); - - yaffs_GrossLock(dev); - - yaffs_FlushFile(obj, 1); - - yaffs_GrossUnlock(dev); - - return 0; -} - -static int yaffs_readpage_nolock(struct file *f, struct page *pg) -{ - /* Lifted from jffs2 */ - - yaffs_Object *obj; - unsigned char *pg_buf; - int ret; - - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage at %08x, size %08x\n", - (unsigned)(pg->index << PAGE_CACHE_SHIFT), - (unsigned)PAGE_CACHE_SIZE)); - - obj = yaffs_DentryToObject(f->f_dentry); - - dev = obj->myDev; - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - BUG_ON(!PageLocked(pg)); -#else - if (!PageLocked(pg)) - PAGE_BUG(pg); -#endif - - pg_buf = kmap(pg); - /* FIXME: Can kmap fail? */ - - yaffs_GrossLock(dev); - - ret = - yaffs_ReadDataFromFile(obj, pg_buf, pg->index << PAGE_CACHE_SHIFT, - PAGE_CACHE_SIZE); - - yaffs_GrossUnlock(dev); - - if (ret >= 0) - ret = 0; - - if (ret) { - ClearPageUptodate(pg); - SetPageError(pg); - } else { - SetPageUptodate(pg); - ClearPageError(pg); - } - - flush_dcache_page(pg); - kunmap(pg); - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_readpage done\n")); - return ret; -} - -static int yaffs_readpage_unlock(struct file *f, struct page *pg) -{ - int ret = yaffs_readpage_nolock(f, pg); - UnlockPage(pg); - return ret; -} - -static int yaffs_readpage(struct file *f, struct page *pg) -{ - return yaffs_readpage_unlock(f, pg); -} - -/* writepage inspired by/stolen from smbfs */ - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_writepage(struct page *page, struct writeback_control *wbc) -#else -static int yaffs_writepage(struct page *page) -#endif -{ - struct address_space *mapping = page->mapping; - loff_t offset = (loff_t) page->index << PAGE_CACHE_SHIFT; - struct inode *inode; - unsigned long end_index; - char *buffer; - yaffs_Object *obj; - int nWritten = 0; - unsigned nBytes; - - if (!mapping) - BUG(); - inode = mapping->host; - if (!inode) - BUG(); - - if (offset > inode->i_size) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG - "yaffs_writepage at %08x, inode size = %08x!!!\n", - (unsigned)(page->index << PAGE_CACHE_SHIFT), - (unsigned)inode->i_size)); - T(YAFFS_TRACE_OS, - (KERN_DEBUG " -> don't care!!\n")); - unlock_page(page); - return 0; - } - - end_index = inode->i_size >> PAGE_CACHE_SHIFT; - - /* easy case */ - if (page->index < end_index) { - nBytes = PAGE_CACHE_SIZE; - } else { - nBytes = inode->i_size & (PAGE_CACHE_SIZE - 1); - } - - get_page(page); - - buffer = kmap(page); - - obj = yaffs_InodeToObject(inode); - yaffs_GrossLock(obj->myDev); - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_writepage at %08x, size %08x\n", - (unsigned)(page->index << PAGE_CACHE_SHIFT), nBytes)); - T(YAFFS_TRACE_OS, - (KERN_DEBUG "writepag0: obj = %05x, ino = %05x\n", - (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); - - nWritten = - yaffs_WriteDataToFile(obj, buffer, page->index << PAGE_CACHE_SHIFT, - nBytes, 0); - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "writepag1: obj = %05x, ino = %05x\n", - (int)obj->variant.fileVariant.fileSize, (int)inode->i_size)); - - yaffs_GrossUnlock(obj->myDev); - - kunmap(page); - SetPageUptodate(page); - UnlockPage(page); - put_page(page); - - return (nWritten == nBytes) ? 0 : -ENOSPC; -} - -static int yaffs_prepare_write(struct file *f, struct page *pg, - unsigned offset, unsigned to) -{ - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_prepair_write\n")); - if (!Page_Uptodate(pg) && (offset || to < PAGE_CACHE_SIZE)) - return yaffs_readpage_nolock(f, pg); - - return 0; - -} - -static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset, - unsigned to) -{ - - void *addr = page_address(pg) + offset; - loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset; - int nBytes = to - offset; - int nWritten; - - unsigned spos = pos; - unsigned saddr = (unsigned)addr; - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr, - spos, nBytes)); - - nWritten = yaffs_file_write(f, addr, nBytes, &pos); - - if (nWritten != nBytes) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG - "yaffs_commit_write not same size nWritten %d nBytes %d\n", - nWritten, nBytes)); - SetPageError(pg); - ClearPageUptodate(pg); - } else { - SetPageUptodate(pg); - } - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_commit_write returning %d\n", - nWritten == nBytes ? 0 : nWritten)); - - return nWritten == nBytes ? 0 : nWritten; - -} - -static void yaffs_FillInodeFromObject(struct inode *inode, yaffs_Object * obj) -{ - if (inode && obj) { - - - /* Check mode against the variant type and attempt to repair if broken. */ - __u32 mode = obj->yst_mode; - switch( obj->variantType ){ - case YAFFS_OBJECT_TYPE_FILE : - if( ! S_ISREG(mode) ){ - obj->yst_mode &= ~S_IFMT; - obj->yst_mode |= S_IFREG; - } - - break; - case YAFFS_OBJECT_TYPE_SYMLINK : - if( ! S_ISLNK(mode) ){ - obj->yst_mode &= ~S_IFMT; - obj->yst_mode |= S_IFLNK; - } - - break; - case YAFFS_OBJECT_TYPE_DIRECTORY : - if( ! S_ISDIR(mode) ){ - obj->yst_mode &= ~S_IFMT; - obj->yst_mode |= S_IFDIR; - } - - break; - case YAFFS_OBJECT_TYPE_UNKNOWN : - case YAFFS_OBJECT_TYPE_HARDLINK : - case YAFFS_OBJECT_TYPE_SPECIAL : - default: - /* TODO? */ - break; - } - - inode->i_ino = obj->objectId; - inode->i_mode = obj->yst_mode; - inode->i_uid = obj->yst_uid; - inode->i_gid = obj->yst_gid; -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) - inode->i_blksize = inode->i_sb->s_blocksize; -#endif -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - - inode->i_rdev = old_decode_dev(obj->yst_rdev); - inode->i_atime.tv_sec = (time_t) (obj->yst_atime); - inode->i_atime.tv_nsec = 0; - inode->i_mtime.tv_sec = (time_t) obj->yst_mtime; - inode->i_mtime.tv_nsec = 0; - inode->i_ctime.tv_sec = (time_t) obj->yst_ctime; - inode->i_ctime.tv_nsec = 0; -#else - inode->i_rdev = obj->yst_rdev; - inode->i_atime = obj->yst_atime; - inode->i_mtime = obj->yst_mtime; - inode->i_ctime = obj->yst_ctime; -#endif - inode->i_size = yaffs_GetObjectFileLength(obj); - inode->i_blocks = (inode->i_size + 511) >> 9; - - inode->i_nlink = yaffs_GetObjectLinkCount(obj); - - T(YAFFS_TRACE_OS, - (KERN_DEBUG - "yaffs_FillInode mode %x uid %d gid %d size %d count %d\n", - inode->i_mode, inode->i_uid, inode->i_gid, - (int)inode->i_size, atomic_read(&inode->i_count))); - - switch (obj->yst_mode & S_IFMT) { - default: /* fifo, device or socket */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - init_special_inode(inode, obj->yst_mode, - old_decode_dev(obj->yst_rdev)); -#else - init_special_inode(inode, obj->yst_mode, - (dev_t) (obj->yst_rdev)); -#endif - break; - case S_IFREG: /* file */ - inode->i_op = &yaffs_file_inode_operations; - inode->i_fop = &yaffs_file_operations; - inode->i_mapping->a_ops = - &yaffs_file_address_operations; - break; - case S_IFDIR: /* directory */ - inode->i_op = &yaffs_dir_inode_operations; - inode->i_fop = &yaffs_dir_operations; - break; - case S_IFLNK: /* symlink */ - inode->i_op = &yaffs_symlink_inode_operations; - break; - } - - yaffs_InodeToObjectLV(inode) = obj; - - obj->myInode = inode; - - } else { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_FileInode invalid parameters\n")); - } - -} - -struct inode *yaffs_get_inode(struct super_block *sb, int mode, int dev, - yaffs_Object * obj) -{ - struct inode *inode; - - if (!sb) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_get_inode for NULL super_block!!\n")); - return NULL; - - } - - if (!obj) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_get_inode for NULL object!!\n")); - return NULL; - - } - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_get_inode for object %d\n", obj->objectId)); - - inode = iget(sb, obj->objectId); - - /* NB Side effect: iget calls back to yaffs_read_inode(). */ - /* iget also increments the inode's i_count */ - /* NB You can't be holding grossLock or deadlock will happen! */ - - return inode; -} - -static ssize_t yaffs_file_write(struct file *f, const char *buf, size_t n, - loff_t * pos) -{ - yaffs_Object *obj; - int nWritten, ipos; - struct inode *inode; - yaffs_Device *dev; - - obj = yaffs_DentryToObject(f->f_dentry); - - dev = obj->myDev; - - yaffs_GrossLock(dev); - - inode = f->f_dentry->d_inode; - - if (!S_ISBLK(inode->i_mode) && f->f_flags & O_APPEND) { - ipos = inode->i_size; - } else { - ipos = *pos; - } - - if (!obj) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_file_write: hey obj is null!\n")); - } else { - T(YAFFS_TRACE_OS, - (KERN_DEBUG - "yaffs_file_write about to write writing %d bytes" - "to object %d at %d\n", - n, obj->objectId, ipos)); - } - - nWritten = yaffs_WriteDataToFile(obj, buf, ipos, n, 0); - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_file_write writing %d bytes, %d written at %d\n", - n, nWritten, ipos)); - if (nWritten > 0) { - ipos += nWritten; - *pos = ipos; - if (ipos > inode->i_size) { - inode->i_size = ipos; - inode->i_blocks = (ipos + 511) >> 9; - - T(YAFFS_TRACE_OS, - (KERN_DEBUG - "yaffs_file_write size updated to %d bytes, " - "%d blocks\n", - ipos, (int)(inode->i_blocks))); - } - - } - yaffs_GrossUnlock(dev); - return nWritten == 0 ? -ENOSPC : nWritten; -} - -static int yaffs_readdir(struct file *f, void *dirent, filldir_t filldir) -{ - yaffs_Object *obj; - yaffs_Device *dev; - struct inode *inode = f->f_dentry->d_inode; - unsigned long offset, curoffs; - struct list_head *i; - yaffs_Object *l; - - char name[YAFFS_MAX_NAME_LENGTH + 1]; - - obj = yaffs_DentryToObject(f->f_dentry); - dev = obj->myDev; - - yaffs_GrossLock(dev); - - offset = f->f_pos; - - T(YAFFS_TRACE_OS, ("yaffs_readdir: starting at %d\n", (int)offset)); - - if (offset == 0) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_readdir: entry . ino %d \n", - (int)inode->i_ino)); - if (filldir(dirent, ".", 1, offset, inode->i_ino, DT_DIR) - < 0) { - goto out; - } - offset++; - f->f_pos++; - } - if (offset == 1) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_readdir: entry .. ino %d \n", - (int)f->f_dentry->d_parent->d_inode->i_ino)); - if (filldir - (dirent, "..", 2, offset, - f->f_dentry->d_parent->d_inode->i_ino, DT_DIR) < 0) { - goto out; - } - offset++; - f->f_pos++; - } - - curoffs = 1; - - /* If the directory has changed since the open or last call to - readdir, rewind to after the 2 canned entries. */ - - if (f->f_version != inode->i_version) { - offset = 2; - f->f_pos = offset; - f->f_version = inode->i_version; - } - - list_for_each(i, &obj->variant.directoryVariant.children) { - curoffs++; - if (curoffs >= offset) { - l = list_entry(i, yaffs_Object, siblings); - - yaffs_GetObjectName(l, name, - YAFFS_MAX_NAME_LENGTH + 1); - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_readdir: %s inode %d\n", name, - yaffs_GetObjectInode(l))); - - if (filldir(dirent, - name, - strlen(name), - offset, - yaffs_GetObjectInode(l), - yaffs_GetObjectType(l)) - < 0) { - goto up_and_out; - } - - offset++; - f->f_pos++; - } - } - - up_and_out: - out: - - yaffs_GrossUnlock(dev); - - return 0; -} - -/* - * File creation. Allocate an inode, and we're done.. - */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, - dev_t rdev) -#else -static int yaffs_mknod(struct inode *dir, struct dentry *dentry, int mode, - int rdev) -#endif -{ - struct inode *inode; - - yaffs_Object *obj = NULL; - yaffs_Device *dev; - - yaffs_Object *parent = yaffs_InodeToObject(dir); - - int error = -ENOSPC; - uid_t uid = current->fsuid; - gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; - - if((dir->i_mode & S_ISGID) && S_ISDIR(mode)) - mode |= S_ISGID; - - if (parent) { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_mknod: parent object %d type %d\n", - parent->objectId, parent->variantType)); - } else { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_mknod: could not get parent object\n")); - return -EPERM; - } - - T(YAFFS_TRACE_OS, ("yaffs_mknod: making oject for %s, " - "mode %x dev %x\n", - dentry->d_name.name, mode, rdev)); - - dev = parent->myDev; - - yaffs_GrossLock(dev); - - switch (mode & S_IFMT) { - default: - /* Special (socket, fifo, device...) */ - T(YAFFS_TRACE_OS, (KERN_DEBUG - "yaffs_mknod: making special\n")); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - obj = - yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, - gid, old_encode_dev(rdev)); -#else - obj = - yaffs_MknodSpecial(parent, dentry->d_name.name, mode, uid, - gid, rdev); -#endif - break; - case S_IFREG: /* file */ - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); - obj = - yaffs_MknodFile(parent, dentry->d_name.name, mode, uid, - gid); - break; - case S_IFDIR: /* directory */ - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_mknod: making directory\n")); - obj = - yaffs_MknodDirectory(parent, dentry->d_name.name, mode, - uid, gid); - break; - case S_IFLNK: /* symlink */ - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mknod: making file\n")); - obj = NULL; /* Do we ever get here? */ - break; - } - - /* Can not call yaffs_get_inode() with gross lock held */ - yaffs_GrossUnlock(dev); - - if (obj) { - inode = yaffs_get_inode(dir->i_sb, mode, rdev, obj); - d_instantiate(dentry, inode); - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_mknod created object %d count = %d\n", - obj->objectId, atomic_read(&inode->i_count))); - error = 0; - } else { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_mknod failed making object\n")); - error = -ENOMEM; - } - - return error; -} - -static int yaffs_mkdir(struct inode *dir, struct dentry *dentry, int mode) -{ - int retVal; - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_mkdir\n")); - retVal = yaffs_mknod(dir, dentry, mode | S_IFDIR, 0); -#if 0 - /* attempt to fix dir bug - didn't work */ - if (!retVal) { - dget(dentry); - } -#endif - return retVal; -} - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode, - struct nameidata *n) -#else -static int yaffs_create(struct inode *dir, struct dentry *dentry, int mode) -#endif -{ - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_create\n")); - return yaffs_mknod(dir, dentry, mode | S_IFREG, 0); -} - -static int yaffs_unlink(struct inode *dir, struct dentry *dentry) -{ - int retVal; - - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_unlink %d:%s\n", (int)(dir->i_ino), - dentry->d_name.name)); - - dev = yaffs_InodeToObject(dir)->myDev; - - yaffs_GrossLock(dev); - - retVal = yaffs_Unlink(yaffs_InodeToObject(dir), dentry->d_name.name); - - if (retVal == YAFFS_OK) { - dentry->d_inode->i_nlink--; - dir->i_version++; - yaffs_GrossUnlock(dev); - mark_inode_dirty(dentry->d_inode); - return 0; - } - yaffs_GrossUnlock(dev); - return -ENOTEMPTY; -} - -/* - * Create a link... - */ -static int yaffs_link(struct dentry *old_dentry, struct inode *dir, - struct dentry *dentry) -{ - struct inode *inode = old_dentry->d_inode; - yaffs_Object *obj = NULL; - yaffs_Object *link = NULL; - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_link\n")); - - obj = yaffs_InodeToObject(inode); - dev = obj->myDev; - - yaffs_GrossLock(dev); - - if (!S_ISDIR(inode->i_mode)) /* Don't link directories */ - { - link = - yaffs_Link(yaffs_InodeToObject(dir), dentry->d_name.name, - obj); - } - - if (link) { - old_dentry->d_inode->i_nlink = yaffs_GetObjectLinkCount(obj); - d_instantiate(dentry, old_dentry->d_inode); - atomic_inc(&old_dentry->d_inode->i_count); - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_link link count %d i_count %d\n", - old_dentry->d_inode->i_nlink, - atomic_read(&old_dentry->d_inode->i_count))); - - } - - yaffs_GrossUnlock(dev); - - if (link) { - - return 0; - } - - return -EPERM; -} - -static int yaffs_symlink(struct inode *dir, struct dentry *dentry, - const char *symname) -{ - yaffs_Object *obj; - yaffs_Device *dev; - uid_t uid = current->fsuid; - gid_t gid = (dir->i_mode & S_ISGID) ? dir->i_gid : current->fsgid; - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_symlink\n")); - - dev = yaffs_InodeToObject(dir)->myDev; - yaffs_GrossLock(dev); - obj = yaffs_MknodSymLink(yaffs_InodeToObject(dir), dentry->d_name.name, - S_IFLNK | S_IRWXUGO, uid, gid, symname); - yaffs_GrossUnlock(dev); - - if (obj) { - - struct inode *inode; - - inode = yaffs_get_inode(dir->i_sb, obj->yst_mode, 0, obj); - d_instantiate(dentry, inode); - T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink created OK\n")); - return 0; - } else { - T(YAFFS_TRACE_OS, (KERN_DEBUG "symlink not created\n")); - - } - - return -ENOMEM; -} - -static int yaffs_sync_object(struct file *file, struct dentry *dentry, - int datasync) -{ - - yaffs_Object *obj; - yaffs_Device *dev; - - obj = yaffs_DentryToObject(dentry); - - dev = obj->myDev; - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_object\n")); - yaffs_GrossLock(dev); - yaffs_FlushFile(obj, 1); - yaffs_GrossUnlock(dev); - return 0; -} - -/* - * The VFS layer already does all the dentry stuff for rename. - * - * NB: POSIX says you can rename an object over an old object of the same name - */ -static int yaffs_rename(struct inode *old_dir, struct dentry *old_dentry, - struct inode *new_dir, struct dentry *new_dentry) -{ - yaffs_Device *dev; - int retVal = YAFFS_FAIL; - yaffs_Object *target; - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_rename\n")); - dev = yaffs_InodeToObject(old_dir)->myDev; - - yaffs_GrossLock(dev); - - /* Check if the target is an existing directory that is not empty. */ - target = - yaffs_FindObjectByName(yaffs_InodeToObject(new_dir), - new_dentry->d_name.name); - - - - if (target && - target->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && - !list_empty(&target->variant.directoryVariant.children)) { - - T(YAFFS_TRACE_OS, (KERN_DEBUG "target is non-empty dir\n")); - - retVal = YAFFS_FAIL; - } else { - - /* Now does unlinking internally using shadowing mechanism */ - T(YAFFS_TRACE_OS, (KERN_DEBUG "calling yaffs_RenameObject\n")); - - retVal = - yaffs_RenameObject(yaffs_InodeToObject(old_dir), - old_dentry->d_name.name, - yaffs_InodeToObject(new_dir), - new_dentry->d_name.name); - - } - yaffs_GrossUnlock(dev); - - if (retVal == YAFFS_OK) { - if(target) { - new_dentry->d_inode->i_nlink--; - mark_inode_dirty(new_dentry->d_inode); - } - - return 0; - } else { - return -ENOTEMPTY; - } - -} - -static int yaffs_setattr(struct dentry *dentry, struct iattr *attr) -{ - struct inode *inode = dentry->d_inode; - int error; - yaffs_Device *dev; - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_setattr of object %d\n", - yaffs_InodeToObject(inode)->objectId)); - - if ((error = inode_change_ok(inode, attr)) == 0) { - - dev = yaffs_InodeToObject(inode)->myDev; - yaffs_GrossLock(dev); - if (yaffs_SetAttributes(yaffs_InodeToObject(inode), attr) == - YAFFS_OK) { - error = 0; - } else { - error = -EPERM; - } - yaffs_GrossUnlock(dev); - if (!error) - error = inode_setattr(inode, attr); - } - return error; -} - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_statfs(struct dentry *dentry, struct kstatfs *buf) -{ - yaffs_Device *dev = yaffs_DentryToObject(dentry)->myDev; - struct super_block *sb = dentry->d_sb; -#elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_statfs(struct super_block *sb, struct kstatfs *buf) -{ - yaffs_Device *dev = yaffs_SuperToDevice(sb); -#else -static int yaffs_statfs(struct super_block *sb, struct statfs *buf) -{ - yaffs_Device *dev = yaffs_SuperToDevice(sb); -#endif - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_statfs\n")); - - yaffs_GrossLock(dev); - - buf->f_type = YAFFS_MAGIC; - buf->f_bsize = sb->s_blocksize; - buf->f_namelen = 255; - if (sb->s_blocksize > dev->nDataBytesPerChunk) { - - buf->f_blocks = - (dev->endBlock - dev->startBlock + - 1) * dev->nChunksPerBlock / (sb->s_blocksize / - dev->nDataBytesPerChunk); - buf->f_bfree = - yaffs_GetNumberOfFreeChunks(dev) / (sb->s_blocksize / - dev->nDataBytesPerChunk); - } else { - - buf->f_blocks = - (dev->endBlock - dev->startBlock + - 1) * dev->nChunksPerBlock * (dev->nDataBytesPerChunk / - sb->s_blocksize); - buf->f_bfree = - yaffs_GetNumberOfFreeChunks(dev) * (dev->nDataBytesPerChunk / - sb->s_blocksize); - } - buf->f_files = 0; - buf->f_ffree = 0; - buf->f_bavail = buf->f_bfree; - - yaffs_GrossUnlock(dev); - return 0; -} - - -/** -static int yaffs_do_sync_fs(struct super_block *sb) -{ - - yaffs_Device *dev = yaffs_SuperToDevice(sb); - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_do_sync_fs\n")); - - if(sb->s_dirt) { - yaffs_GrossLock(dev); - - if(dev) - yaffs_CheckpointSave(dev); - - yaffs_GrossUnlock(dev); - - sb->s_dirt = 0; - } - return 0; -} -**/ - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static void yaffs_write_super(struct super_block *sb) -#else -static int yaffs_write_super(struct super_block *sb) -#endif -{ - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_write_super\n")); -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) - return 0; /* yaffs_do_sync_fs(sb);*/ -#endif -} - - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_sync_fs(struct super_block *sb, int wait) -#else -static int yaffs_sync_fs(struct super_block *sb) -#endif -{ - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_sync_fs\n")); - - return 0; /* yaffs_do_sync_fs(sb);*/ - -} - - -static void yaffs_read_inode(struct inode *inode) -{ - /* NB This is called as a side effect of other functions, but - * we had to release the lock to prevent deadlocks, so - * need to lock again. - */ - - yaffs_Object *obj; - yaffs_Device *dev = yaffs_SuperToDevice(inode->i_sb); - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_read_inode for %d\n", (int)inode->i_ino)); - - yaffs_GrossLock(dev); - - obj = yaffs_FindObjectByNumber(dev, inode->i_ino); - - yaffs_FillInodeFromObject(inode, obj); - - yaffs_GrossUnlock(dev); -} - -static LIST_HEAD(yaffs_dev_list); - -#if 0 // not used -static int yaffs_remount_fs(struct super_block *sb, int *flags, char *data) -{ - yaffs_Device *dev = yaffs_SuperToDevice(sb); - - if( *flags & MS_RDONLY ) { - struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; - - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_remount_fs: %s: RO\n", dev->name )); - - yaffs_GrossLock(dev); - - yaffs_FlushEntireDeviceCache(dev); - - yaffs_CheckpointSave(dev); - - if (mtd->sync) - mtd->sync(mtd); - - yaffs_GrossUnlock(dev); - } - else { - T(YAFFS_TRACE_OS, - (KERN_DEBUG "yaffs_remount_fs: %s: RW\n", dev->name )); - } - - return 0; -} -#endif - -static void yaffs_put_super(struct super_block *sb) -{ - yaffs_Device *dev = yaffs_SuperToDevice(sb); - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_put_super\n")); - - yaffs_GrossLock(dev); - - yaffs_FlushEntireDeviceCache(dev); - - yaffs_CheckpointSave(dev); - - if (dev->putSuperFunc) { - dev->putSuperFunc(sb); - } - - yaffs_Deinitialise(dev); - - yaffs_GrossUnlock(dev); - - /* we assume this is protected by lock_kernel() in mount/umount */ - list_del(&dev->devList); - - if(dev->spareBuffer){ - YFREE(dev->spareBuffer); - dev->spareBuffer = NULL; - } - - kfree(dev); -} - - -static void yaffs_MTDPutSuper(struct super_block *sb) -{ - - struct mtd_info *mtd = yaffs_SuperToDevice(sb)->genericDevice; - - if (mtd->sync) { - mtd->sync(mtd); - } - - put_mtd_device(mtd); -} - - -static void yaffs_MarkSuperBlockDirty(void *vsb) -{ - struct super_block *sb = (struct super_block *)vsb; - - T(YAFFS_TRACE_OS, (KERN_DEBUG "yaffs_MarkSuperBlockDirty() sb = %p\n",sb)); -// if(sb) -// sb->s_dirt = 1; -} - -typedef struct { - int inband_tags; - int skip_checkpoint_read; - int skip_checkpoint_write; - int no_cache; -} yaffs_options; - -#define MAX_OPT_LEN 20 -static int yaffs_parse_options(yaffs_options *options, const char *options_str) -{ - char cur_opt[MAX_OPT_LEN+1]; - int p; - int error = 0; - - /* Parse through the options which is a comma seperated list */ - - while(options_str && *options_str && !error){ - memset(cur_opt,0,MAX_OPT_LEN+1); - p = 0; - - while(*options_str && *options_str != ','){ - if(p < MAX_OPT_LEN){ - cur_opt[p] = *options_str; - p++; - } - options_str++; - } - - if(!strcmp(cur_opt,"inband-tags")) - options->inband_tags = 1; - else if(!strcmp(cur_opt,"no-cache")) - options->no_cache = 1; - else if(!strcmp(cur_opt,"no-checkpoint-read")) - options->skip_checkpoint_read = 1; - else if(!strcmp(cur_opt,"no-checkpoint-write")) - options->skip_checkpoint_write = 1; - else if(!strcmp(cur_opt,"no-checkpoint")){ - options->skip_checkpoint_read = 1; - options->skip_checkpoint_write = 1; - } else { - printk(KERN_INFO "yaffs: Bad mount option \"%s\"\n",cur_opt); - error = 1; - } - - } - - return error; -} - -static struct super_block *yaffs_internal_read_super(int yaffsVersion, - struct super_block *sb, - void *data, int silent) -{ - int nBlocks; - struct inode *inode = NULL; - struct dentry *root; - yaffs_Device *dev = 0; - char devname_buf[BDEVNAME_SIZE + 1]; - struct mtd_info *mtd; - int err; - char *data_str = (char *)data; - - yaffs_options options; - - sb->s_magic = YAFFS_MAGIC; - sb->s_op = &yaffs_super_ops; - - if (!sb) - printk(KERN_INFO "yaffs: sb is NULL\n"); - else if (!sb->s_dev) - printk(KERN_INFO "yaffs: sb->s_dev is NULL\n"); - else if (!yaffs_devname(sb, devname_buf)) - printk(KERN_INFO "yaffs: devname is NULL\n"); - else - printk(KERN_INFO "yaffs: dev is %d name is \"%s\"\n", - sb->s_dev, - yaffs_devname(sb, devname_buf)); - - if(!data_str) - data_str = ""; - - printk(KERN_INFO "yaffs: passed flags \"%s\"\n",data_str); - - memset(&options,0,sizeof(options)); - - if(yaffs_parse_options(&options,data_str)){ - /* Option parsing failed */ - return NULL; - } - - - sb->s_blocksize = PAGE_CACHE_SIZE; - sb->s_blocksize_bits = PAGE_CACHE_SHIFT; - T(YAFFS_TRACE_OS, ("yaffs_read_super: Using yaffs%d\n", yaffsVersion)); - T(YAFFS_TRACE_OS, - ("yaffs_read_super: block size %d\n", (int)(sb->s_blocksize))); - -#ifdef CONFIG_YAFFS_DISABLE_WRITE_VERIFY - T(YAFFS_TRACE_OS, - ("yaffs: Write verification disabled. All guarantees " - "null and void\n")); -#endif - - T(YAFFS_TRACE_ALWAYS, ("yaffs: Attempting MTD mount on %u.%u, " - "\"%s\"\n", - MAJOR(sb->s_dev), MINOR(sb->s_dev), - yaffs_devname(sb, devname_buf))); - - /* Check it's an mtd device..... */ - if (MAJOR(sb->s_dev) != MTD_BLOCK_MAJOR) { - return NULL; /* This isn't an mtd device */ - } - /* Get the device */ - mtd = get_mtd_device(NULL, MINOR(sb->s_dev)); - if (!mtd) { - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device #%u doesn't appear to exist\n", - MINOR(sb->s_dev))); - return NULL; - } - /* Check it's NAND */ - if (mtd->type != MTD_NANDFLASH) { - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device is not NAND it's type %d\n", mtd->type)); - return NULL; - } - - T(YAFFS_TRACE_OS, (" erase %p\n", mtd->erase)); - T(YAFFS_TRACE_OS, (" read %p\n", mtd->read)); - T(YAFFS_TRACE_OS, (" write %p\n", mtd->write)); - T(YAFFS_TRACE_OS, (" readoob %p\n", mtd->read_oob)); - T(YAFFS_TRACE_OS, (" writeoob %p\n", mtd->write_oob)); - T(YAFFS_TRACE_OS, (" block_isbad %p\n", mtd->block_isbad)); - T(YAFFS_TRACE_OS, (" block_markbad %p\n", mtd->block_markbad)); - T(YAFFS_TRACE_OS, (" %s %d\n", WRITE_SIZE_STR, WRITE_SIZE(mtd))); - T(YAFFS_TRACE_OS, (" oobsize %d\n", mtd->oobsize)); - T(YAFFS_TRACE_OS, (" erasesize %d\n", mtd->erasesize)); - T(YAFFS_TRACE_OS, (" size %d\n", mtd->size)); - -#ifdef CONFIG_YAFFS_AUTO_YAFFS2 - - if (yaffsVersion == 1 && -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - mtd->writesize >= 2048) { -#else - mtd->oobblock >= 2048) { -#endif - T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs2\n")); - yaffsVersion = 2; - } - - /* Added NCB 26/5/2006 for completeness */ - if (yaffsVersion == 2 && -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - mtd->writesize == 512) { -#else - mtd->oobblock == 512) { -#endif - T(YAFFS_TRACE_ALWAYS,("yaffs: auto selecting yaffs1\n")); - yaffsVersion = 1; - } - -#endif - - if (yaffsVersion == 2) { - /* Check for version 2 style functions */ - if (!mtd->erase || - !mtd->block_isbad || - !mtd->block_markbad || - !mtd->read || - !mtd->write || -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - !mtd->read_oob || !mtd->write_oob) { -#else - !mtd->write_ecc || - !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { -#endif - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device does not support required " - "functions\n"));; - return NULL; - } - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - if (mtd->writesize < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -#else - if (mtd->oobblock < YAFFS_MIN_YAFFS2_CHUNK_SIZE || -#endif - mtd->oobsize < YAFFS_MIN_YAFFS2_SPARE_SIZE) { - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device does not have the " - "right page sizes\n")); - return NULL; - } - } else { - /* Check for V1 style functions */ - if (!mtd->erase || - !mtd->read || - !mtd->write || -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - !mtd->read_oob || !mtd->write_oob) { -#else - !mtd->write_ecc || - !mtd->read_ecc || !mtd->read_oob || !mtd->write_oob) { -#endif - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device does not support required " - "functions\n"));; - return NULL; - } - - if (WRITE_SIZE(mtd) < YAFFS_BYTES_PER_CHUNK || - mtd->oobsize != YAFFS_BYTES_PER_SPARE) { - T(YAFFS_TRACE_ALWAYS, - ("yaffs: MTD device does not support have the " - "right page sizes\n")); - return NULL; - } - } - - /* OK, so if we got here, we have an MTD that's NAND and looks - * like it has the right capabilities - * Set the yaffs_Device up for mtd - */ - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) - sb->s_fs_info = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); -#else - sb->u.generic_sbp = dev = kmalloc(sizeof(yaffs_Device), GFP_KERNEL); -#endif - if (!dev) { - /* Deep shit could not allocate device structure */ - T(YAFFS_TRACE_ALWAYS, - ("yaffs_read_super: Failed trying to allocate " - "yaffs_Device. \n")); - return NULL; - } - - memset(dev, 0, sizeof(yaffs_Device)); - dev->genericDevice = mtd; - dev->name = mtd->name; - - /* Set up the memory size parameters.... */ - - nBlocks = mtd->size / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK); - dev->startBlock = 0; - dev->endBlock = nBlocks - 1; - dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK; - dev->nDataBytesPerChunk = YAFFS_BYTES_PER_CHUNK; - dev->nReservedBlocks = 5; - dev->nShortOpCaches = (options.no_cache) ? 0 : 10; - - /* ... and the functions. */ - if (yaffsVersion == 2) { - dev->writeChunkWithTagsToNAND = - nandmtd2_WriteChunkWithTagsToNAND; - dev->readChunkWithTagsFromNAND = - nandmtd2_ReadChunkWithTagsFromNAND; - dev->markNANDBlockBad = nandmtd2_MarkNANDBlockBad; - dev->queryNANDBlock = nandmtd2_QueryNANDBlock; - dev->spareBuffer = YMALLOC(mtd->oobsize); - dev->isYaffs2 = 1; -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - dev->nDataBytesPerChunk = mtd->writesize; - dev->nChunksPerBlock = mtd->erasesize / mtd->writesize; -#else - dev->nDataBytesPerChunk = mtd->oobblock; - dev->nChunksPerBlock = mtd->erasesize / mtd->oobblock; -#endif - nBlocks = mtd->size / mtd->erasesize; - - dev->nCheckpointReservedBlocks = CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS; - dev->startBlock = 0; - dev->endBlock = nBlocks - 1; - } else { -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - /* use the MTD interface in yaffs_mtdif1.c */ - dev->writeChunkWithTagsToNAND = - nandmtd1_WriteChunkWithTagsToNAND; - dev->readChunkWithTagsFromNAND = - nandmtd1_ReadChunkWithTagsFromNAND; - dev->markNANDBlockBad = nandmtd1_MarkNANDBlockBad; - dev->queryNANDBlock = nandmtd1_QueryNANDBlock; -#else - dev->writeChunkToNAND = nandmtd_WriteChunkToNAND; - dev->readChunkFromNAND = nandmtd_ReadChunkFromNAND; -#endif - dev->isYaffs2 = 0; - } - /* ... and common functions */ - dev->eraseBlockInNAND = nandmtd_EraseBlockInNAND; - dev->initialiseNAND = nandmtd_InitialiseNAND; - - dev->putSuperFunc = yaffs_MTDPutSuper; - - dev->superBlock = (void *)sb; - dev->markSuperBlockDirty = yaffs_MarkSuperBlockDirty; - - -#ifndef CONFIG_YAFFS_DOES_ECC - dev->useNANDECC = 1; -#endif - -#ifdef CONFIG_YAFFS_DISABLE_WIDE_TNODES - dev->wideTnodesDisabled = 1; -#endif - - dev->skipCheckpointRead = options.skip_checkpoint_read; - dev->skipCheckpointWrite = options.skip_checkpoint_write; - - /* we assume this is protected by lock_kernel() in mount/umount */ - list_add_tail(&dev->devList, &yaffs_dev_list); - - init_MUTEX(&dev->grossLock); - - yaffs_GrossLock(dev); - - err = yaffs_GutsInitialise(dev); - - T(YAFFS_TRACE_OS, - ("yaffs_read_super: guts initialised %s\n", - (err == YAFFS_OK) ? "OK" : "FAILED")); - - /* Release lock before yaffs_get_inode() */ - yaffs_GrossUnlock(dev); - - /* Create root inode */ - if (err == YAFFS_OK) - inode = yaffs_get_inode(sb, S_IFDIR | 0755, 0, - yaffs_Root(dev)); - - if (!inode) - return NULL; - - inode->i_op = &yaffs_dir_inode_operations; - inode->i_fop = &yaffs_dir_operations; - - T(YAFFS_TRACE_OS, ("yaffs_read_super: got root inode\n")); - - root = d_alloc_root(inode); - - T(YAFFS_TRACE_OS, ("yaffs_read_super: d_alloc_root done\n")); - - if (!root) { - iput(inode); - return NULL; - } - sb->s_root = root; - - T(YAFFS_TRACE_OS, ("yaffs_read_super: done\n")); - return sb; -} - - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs_internal_read_super_mtd(struct super_block *sb, void *data, - int silent) -{ - return yaffs_internal_read_super(1, sb, data, silent) ? 0 : -EINVAL; -} - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs_read_super(struct file_system_type *fs, - int flags, const char *dev_name, - void *data, struct vfsmount *mnt) -{ - - return get_sb_bdev(fs, flags, dev_name, data, - yaffs_internal_read_super_mtd, mnt); -} -#else -static struct super_block *yaffs_read_super(struct file_system_type *fs, - int flags, const char *dev_name, - void *data) -{ - - return get_sb_bdev(fs, flags, dev_name, data, - yaffs_internal_read_super_mtd); -} -#endif - -static struct file_system_type yaffs_fs_type = { - .owner = THIS_MODULE, - .name = "yaffs", - .get_sb = yaffs_read_super, - .kill_sb = kill_block_super, - .fs_flags = FS_REQUIRES_DEV, -}; -#else -static struct super_block *yaffs_read_super(struct super_block *sb, void *data, - int silent) -{ - return yaffs_internal_read_super(1, sb, data, silent); -} - -static DECLARE_FSTYPE(yaffs_fs_type, "yaffs", yaffs_read_super, - FS_REQUIRES_DEV); -#endif - - -#ifdef CONFIG_YAFFS_YAFFS2 - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -static int yaffs2_internal_read_super_mtd(struct super_block *sb, void *data, - int silent) -{ - return yaffs_internal_read_super(2, sb, data, silent) ? 0 : -EINVAL; -} - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static int yaffs2_read_super(struct file_system_type *fs, - int flags, const char *dev_name, void *data, - struct vfsmount *mnt) -{ - return get_sb_bdev(fs, flags, dev_name, data, - yaffs2_internal_read_super_mtd, mnt); -} -#else -static struct super_block *yaffs2_read_super(struct file_system_type *fs, - int flags, const char *dev_name, - void *data) -{ - - return get_sb_bdev(fs, flags, dev_name, data, - yaffs2_internal_read_super_mtd); -} -#endif - -static struct file_system_type yaffs2_fs_type = { - .owner = THIS_MODULE, - .name = "yaffs2", - .get_sb = yaffs2_read_super, - .kill_sb = kill_block_super, - .fs_flags = FS_REQUIRES_DEV, -}; -#else -static struct super_block *yaffs2_read_super(struct super_block *sb, - void *data, int silent) -{ - return yaffs_internal_read_super(2, sb, data, silent); -} - -static DECLARE_FSTYPE(yaffs2_fs_type, "yaffs2", yaffs2_read_super, - FS_REQUIRES_DEV); -#endif - -#endif /* CONFIG_YAFFS_YAFFS2 */ - -static struct proc_dir_entry *my_proc_entry; - -static char *yaffs_dump_dev(char *buf, yaffs_Device * dev) -{ - buf += sprintf(buf, "startBlock......... %d\n", dev->startBlock); - buf += sprintf(buf, "endBlock........... %d\n", dev->endBlock); - buf += sprintf(buf, "nDataBytesPerChunk. %d\n", dev->nDataBytesPerChunk); - buf += sprintf(buf, "chunkGroupBits..... %d\n", dev->chunkGroupBits); - buf += sprintf(buf, "chunkGroupSize..... %d\n", dev->chunkGroupSize); - buf += sprintf(buf, "nErasedBlocks...... %d\n", dev->nErasedBlocks); - buf += sprintf(buf, "nReservedBlocks.... %d\n", dev->nReservedBlocks); - buf += sprintf(buf, "nCheckptResBlocks.. %d\n", dev->nCheckpointReservedBlocks); - buf += sprintf(buf, "blocksInCheckpoint. %d\n", dev->blocksInCheckpoint); - buf += sprintf(buf, "nTnodesCreated..... %d\n", dev->nTnodesCreated); - buf += sprintf(buf, "nFreeTnodes........ %d\n", dev->nFreeTnodes); - buf += sprintf(buf, "nObjectsCreated.... %d\n", dev->nObjectsCreated); - buf += sprintf(buf, "nFreeObjects....... %d\n", dev->nFreeObjects); - buf += sprintf(buf, "nFreeChunks........ %d\n", dev->nFreeChunks); - buf += sprintf(buf, "nPageWrites........ %d\n", dev->nPageWrites); - buf += sprintf(buf, "nPageReads......... %d\n", dev->nPageReads); - buf += sprintf(buf, "nBlockErasures..... %d\n", dev->nBlockErasures); - buf += sprintf(buf, "nGCCopies.......... %d\n", dev->nGCCopies); - buf += - sprintf(buf, "garbageCollections. %d\n", dev->garbageCollections); - buf += - sprintf(buf, "passiveGCs......... %d\n", - dev->passiveGarbageCollections); - buf += sprintf(buf, "nRetriedWrites..... %d\n", dev->nRetriedWrites); - buf += sprintf(buf, "nShortOpCaches..... %d\n", dev->nShortOpCaches); - buf += sprintf(buf, "nRetireBlocks...... %d\n", dev->nRetiredBlocks); - buf += sprintf(buf, "eccFixed........... %d\n", dev->eccFixed); - buf += sprintf(buf, "eccUnfixed......... %d\n", dev->eccUnfixed); - buf += sprintf(buf, "tagsEccFixed....... %d\n", dev->tagsEccFixed); - buf += sprintf(buf, "tagsEccUnfixed..... %d\n", dev->tagsEccUnfixed); - buf += sprintf(buf, "cacheHits.......... %d\n", dev->cacheHits); - buf += sprintf(buf, "nDeletedFiles...... %d\n", dev->nDeletedFiles); - buf += sprintf(buf, "nUnlinkedFiles..... %d\n", dev->nUnlinkedFiles); - buf += - sprintf(buf, "nBackgroudDeletions %d\n", dev->nBackgroundDeletions); - buf += sprintf(buf, "useNANDECC......... %d\n", dev->useNANDECC); - buf += sprintf(buf, "isYaffs2........... %d\n", dev->isYaffs2); - - return buf; -} - -static int yaffs_proc_read(char *page, - char **start, - off_t offset, int count, int *eof, void *data) -{ - struct list_head *item; - char *buf = page; - int step = offset; - int n = 0; - - /* Get proc_file_read() to step 'offset' by one on each sucessive call. - * We use 'offset' (*ppos) to indicate where we are in devList. - * This also assumes the user has posted a read buffer large - * enough to hold the complete output; but that's life in /proc. - */ - - *(int *)start = 1; - - /* Print header first */ - if (step == 0) { - buf += sprintf(buf, "YAFFS built:" __DATE__ " " __TIME__ - "\n%s\n%s\n", yaffs_fs_c_version, - yaffs_guts_c_version); - } - - /* hold lock_kernel while traversing yaffs_dev_list */ - lock_kernel(); - - /* Locate and print the Nth entry. Order N-squared but N is small. */ - list_for_each(item, &yaffs_dev_list) { - yaffs_Device *dev = list_entry(item, yaffs_Device, devList); - if (n < step) { - n++; - continue; - } - buf += sprintf(buf, "\nDevice %d \"%s\"\n", n, dev->name); - buf = yaffs_dump_dev(buf, dev); - break; - } - unlock_kernel(); - - return buf - page < count ? buf - page : count; -} - -/** - * Set the verbosity of the warnings and error messages. - * - * Note that the names can only be a..z or _ with the current code. - */ - -static struct { - char *mask_name; - unsigned mask_bitfield; -} mask_flags[] = { - {"allocate", YAFFS_TRACE_ALLOCATE}, - {"always", YAFFS_TRACE_ALWAYS}, - {"bad_blocks", YAFFS_TRACE_BAD_BLOCKS}, - {"buffers", YAFFS_TRACE_BUFFERS}, - {"bug", YAFFS_TRACE_BUG}, - {"checkpt", YAFFS_TRACE_CHECKPOINT}, - {"deletion", YAFFS_TRACE_DELETION}, - {"erase", YAFFS_TRACE_ERASE}, - {"error", YAFFS_TRACE_ERROR}, - {"gc_detail", YAFFS_TRACE_GC_DETAIL}, - {"gc", YAFFS_TRACE_GC}, - {"mtd", YAFFS_TRACE_MTD}, - {"nandaccess", YAFFS_TRACE_NANDACCESS}, - {"os", YAFFS_TRACE_OS}, - {"scan_debug", YAFFS_TRACE_SCAN_DEBUG}, - {"scan", YAFFS_TRACE_SCAN}, - {"tracing", YAFFS_TRACE_TRACING}, - - {"verify", YAFFS_TRACE_VERIFY}, - {"verify_nand", YAFFS_TRACE_VERIFY_NAND}, - {"verify_full", YAFFS_TRACE_VERIFY_FULL}, - {"verify_all", YAFFS_TRACE_VERIFY_ALL}, - - {"write", YAFFS_TRACE_WRITE}, - {"all", 0xffffffff}, - {"none", 0}, - {NULL, 0}, -}; - -#define MAX_MASK_NAME_LENGTH 40 -static int yaffs_proc_write(struct file *file, const char *buf, - unsigned long count, void *data) -{ - unsigned rg = 0, mask_bitfield; - char *end; - char *mask_name; - const char *x; - char substring[MAX_MASK_NAME_LENGTH+1]; - int i; - int done = 0; - int add, len = 0; - int pos = 0; - - rg = yaffs_traceMask; - - while (!done && (pos < count)) { - done = 1; - while ((pos < count) && isspace(buf[pos])) { - pos++; - } - - switch (buf[pos]) { - case '+': - case '-': - case '=': - add = buf[pos]; - pos++; - break; - - default: - add = ' '; - break; - } - mask_name = NULL; - - mask_bitfield = simple_strtoul(buf + pos, &end, 0); - if (end > buf + pos) { - mask_name = "numeral"; - len = end - (buf + pos); - pos += len; - done = 0; - } else { - for(x = buf + pos, i = 0; - (*x == '_' || (*x >='a' && *x <= 'z')) && - i <MAX_MASK_NAME_LENGTH; x++, i++, pos++) - substring[i] = *x; - substring[i] = '\0'; - - for (i = 0; mask_flags[i].mask_name != NULL; i++) { - if(strcmp(substring,mask_flags[i].mask_name) == 0){ - mask_name = mask_flags[i].mask_name; - mask_bitfield = mask_flags[i].mask_bitfield; - done = 0; - break; - } - } - } - - if (mask_name != NULL) { - done = 0; - switch(add) { - case '-': - rg &= ~mask_bitfield; - break; - case '+': - rg |= mask_bitfield; - break; - case '=': - rg = mask_bitfield; - break; - default: - rg |= mask_bitfield; - break; - } - } - } - - yaffs_traceMask = rg | YAFFS_TRACE_ALWAYS; - - printk("new trace = 0x%08X\n",yaffs_traceMask); - - if (rg & YAFFS_TRACE_ALWAYS) { - for (i = 0; mask_flags[i].mask_name != NULL; i++) { - char flag; - flag = ((rg & mask_flags[i].mask_bitfield) == mask_flags[i].mask_bitfield) ? '+' : '-'; - printk("%c%s\n", flag, mask_flags[i].mask_name); - } - } - - return count; -} - -/* Stuff to handle installation of file systems */ -struct file_system_to_install { - struct file_system_type *fst; - int installed; -}; - -static struct file_system_to_install fs_to_install[] = { -//#ifdef CONFIG_YAFFS_YAFFS1 - {&yaffs_fs_type, 0}, -//#endif -//#ifdef CONFIG_YAFFS_YAFFS2 - {&yaffs2_fs_type, 0}, -//#endif - {NULL, 0} -}; - -static int __init init_yaffs_fs(void) -{ - int error = 0; - struct file_system_to_install *fsinst; - - T(YAFFS_TRACE_ALWAYS, - ("yaffs " __DATE__ " " __TIME__ " Installing. \n")); - - /* Install the proc_fs entry */ - my_proc_entry = create_proc_entry("yaffs", - S_IRUGO | S_IFREG, - &proc_root); - - if (my_proc_entry) { - my_proc_entry->write_proc = yaffs_proc_write; - my_proc_entry->read_proc = yaffs_proc_read; - my_proc_entry->data = NULL; - } else { - return -ENOMEM; - } - - /* Now add the file system entries */ - - fsinst = fs_to_install; - - while (fsinst->fst && !error) { - error = register_filesystem(fsinst->fst); - if (!error) { - fsinst->installed = 1; - } - fsinst++; - } - - /* Any errors? uninstall */ - if (error) { - fsinst = fs_to_install; - - while (fsinst->fst) { - if (fsinst->installed) { - unregister_filesystem(fsinst->fst); - fsinst->installed = 0; - } - fsinst++; - } - } - - return error; -} - -static void __exit exit_yaffs_fs(void) -{ - - struct file_system_to_install *fsinst; - - T(YAFFS_TRACE_ALWAYS, ("yaffs " __DATE__ " " __TIME__ - " removing. \n")); - - remove_proc_entry("yaffs", &proc_root); - - fsinst = fs_to_install; - - while (fsinst->fst) { - if (fsinst->installed) { - unregister_filesystem(fsinst->fst); - fsinst->installed = 0; - } - fsinst++; - } - -} - -module_init(init_yaffs_fs) -module_exit(exit_yaffs_fs) - -MODULE_DESCRIPTION("YAFFS2 - a NAND specific flash file system"); -MODULE_AUTHOR("Charles Manning, Aleph One Ltd., 2002-2006"); -MODULE_LICENSE("GPL"); diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c deleted file mode 100644 index 2ab8146..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.c +++ /dev/null @@ -1,7469 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_guts_c_version = - "$Id: yaffs_guts.c,v 1.49 2007-05-15 20:07:40 charles Exp $"; - -#include "yportenv.h" - -#include "yaffsinterface.h" -#include "yaffs_guts.h" -#include "yaffs_tagsvalidity.h" - -#include "yaffs_tagscompat.h" -#ifndef CONFIG_YAFFS_USE_OWN_SORT -#include "yaffs_qsort.h" -#endif -#include "yaffs_nand.h" - -#include "yaffs_checkptrw.h" - -#include "yaffs_nand.h" -#include "yaffs_packedtags2.h" - - -#ifdef CONFIG_YAFFS_WINCE -void yfsd_LockYAFFS(BOOL fsLockOnly); -void yfsd_UnlockYAFFS(BOOL fsLockOnly); -#endif - -#define YAFFS_PASSIVE_GC_CHUNKS 2 - -#include "yaffs_ecc.h" - - -/* Robustification (if it ever comes about...) */ -static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND); -static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk); -static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * tags); -static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, - const yaffs_ExtendedTags * tags); - -/* Other local prototypes */ -static int yaffs_UnlinkObject( yaffs_Object *obj); -static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj); - -static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList); - -static int yaffs_WriteNewChunkWithTagsToNAND(yaffs_Device * dev, - const __u8 * buffer, - yaffs_ExtendedTags * tags, - int useReserve); -static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, - int chunkInNAND, int inScan); - -static yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, - yaffs_ObjectType type); -static void yaffs_AddObjectToDirectory(yaffs_Object * directory, - yaffs_Object * obj); -static int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, - int force, int isShrink, int shadows); -static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj); -static int yaffs_CheckStructures(void); -static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, - int chunkOffset, int *limit); -static int yaffs_DoGenericObjectDeletion(yaffs_Object * in); - -static yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blockNo); - -static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo); -static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, - int lineNo); - -static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND); - -static int yaffs_UnlinkWorker(yaffs_Object * obj); -static void yaffs_DestroyObject(yaffs_Object * obj); - -static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, - int chunkInObject); - -loff_t yaffs_GetFileSize(yaffs_Object * obj); - -static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr); - -static void yaffs_VerifyFreeChunks(yaffs_Device * dev); - -static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in); - -#ifdef YAFFS_PARANOID -static int yaffs_CheckFileSanity(yaffs_Object * in); -#else -#define yaffs_CheckFileSanity(in) -#endif - -static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in); -static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId); - -static void yaffs_InvalidateCheckpoint(yaffs_Device *dev); - -static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, - yaffs_ExtendedTags * tags); - -static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos); -static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, - yaffs_FileStructure * fStruct, - __u32 chunkId); - - -/* Function to calculate chunk and offset */ - -static void yaffs_AddrToChunk(yaffs_Device *dev, loff_t addr, __u32 *chunk, __u32 *offset) -{ - if(dev->chunkShift){ - /* Easy-peasy power of 2 case */ - *chunk = (__u32)(addr >> dev->chunkShift); - *offset = (__u32)(addr & dev->chunkMask); - } - else if(dev->crumbsPerChunk) - { - /* Case where we're using "crumbs" */ - *offset = (__u32)(addr & dev->crumbMask); - addr >>= dev->crumbShift; - *chunk = ((__u32)addr)/dev->crumbsPerChunk; - *offset += ((addr - (*chunk * dev->crumbsPerChunk)) << dev->crumbShift); - } - else - YBUG(); -} - -/* Function to return the number of shifts for a power of 2 greater than or equal - * to the given number - * Note we don't try to cater for all possible numbers and this does not have to - * be hellishly efficient. - */ - -static __u32 ShiftsGE(__u32 x) -{ - int extraBits; - int nShifts; - - nShifts = extraBits = 0; - - while(x>1){ - if(x & 1) extraBits++; - x>>=1; - nShifts++; - } - - if(extraBits) - nShifts++; - - return nShifts; -} - -/* Function to return the number of shifts to get a 1 in bit 0 - */ - -static __u32 ShiftDiv(__u32 x) -{ - int nShifts; - - nShifts = 0; - - if(!x) return 0; - - while( !(x&1)){ - x>>=1; - nShifts++; - } - - return nShifts; -} - - - -/* - * Temporary buffer manipulations. - */ - -static int yaffs_InitialiseTempBuffers(yaffs_Device *dev) -{ - int i; - __u8 *buf = (__u8 *)1; - - memset(dev->tempBuffer,0,sizeof(dev->tempBuffer)); - - for (i = 0; buf && i < YAFFS_N_TEMP_BUFFERS; i++) { - dev->tempBuffer[i].line = 0; /* not in use */ - dev->tempBuffer[i].buffer = buf = - YMALLOC_DMA(dev->nDataBytesPerChunk); - } - - return buf ? YAFFS_OK : YAFFS_FAIL; - -} - -static __u8 *yaffs_GetTempBuffer(yaffs_Device * dev, int lineNo) -{ - int i, j; - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].line == 0) { - dev->tempBuffer[i].line = lineNo; - if ((i + 1) > dev->maxTemp) { - dev->maxTemp = i + 1; - for (j = 0; j <= i; j++) - dev->tempBuffer[j].maxLine = - dev->tempBuffer[j].line; - } - - return dev->tempBuffer[i].buffer; - } - } - - T(YAFFS_TRACE_BUFFERS, - (TSTR("Out of temp buffers at line %d, other held by lines:"), - lineNo)); - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - T(YAFFS_TRACE_BUFFERS, (TSTR(" %d "), dev->tempBuffer[i].line)); - } - T(YAFFS_TRACE_BUFFERS, (TSTR(" " TENDSTR))); - - /* - * If we got here then we have to allocate an unmanaged one - * This is not good. - */ - - dev->unmanagedTempAllocations++; - return YMALLOC(dev->nDataBytesPerChunk); - -} - -static void yaffs_ReleaseTempBuffer(yaffs_Device * dev, __u8 * buffer, - int lineNo) -{ - int i; - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].buffer == buffer) { - dev->tempBuffer[i].line = 0; - return; - } - } - - if (buffer) { - /* assume it is an unmanaged one. */ - T(YAFFS_TRACE_BUFFERS, - (TSTR("Releasing unmanaged temp buffer in line %d" TENDSTR), - lineNo)); - YFREE(buffer); - dev->unmanagedTempDeallocations++; - } - -} - -/* - * Determine if we have a managed buffer. - */ -int yaffs_IsManagedTempBuffer(yaffs_Device * dev, const __u8 * buffer) -{ - int i; - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - if (dev->tempBuffer[i].buffer == buffer) - return 1; - - } - - for (i = 0; i < dev->nShortOpCaches; i++) { - if( dev->srCache[i].data == buffer ) - return 1; - - } - - if (buffer == dev->checkpointBuffer) - return 1; - - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: unmaged buffer detected.\n" TENDSTR))); - return 0; -} - - - -/* - * Chunk bitmap manipulations - */ - -static Y_INLINE __u8 *yaffs_BlockBits(yaffs_Device * dev, int blk) -{ - if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs: BlockBits block %d is not valid" TENDSTR), - blk)); - YBUG(); - } - return dev->chunkBits + - (dev->chunkBitmapStride * (blk - dev->internalStartBlock)); -} - -static Y_INLINE void yaffs_VerifyChunkBitId(yaffs_Device *dev, int blk, int chunk) -{ - if(blk < dev->internalStartBlock || blk > dev->internalEndBlock || - chunk < 0 || chunk >= dev->nChunksPerBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs: Chunk Id (%d:%d) invalid"TENDSTR),blk,chunk)); - YBUG(); - } -} - -static Y_INLINE void yaffs_ClearChunkBits(yaffs_Device * dev, int blk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - memset(blkBits, 0, dev->chunkBitmapStride); -} - -static Y_INLINE void yaffs_ClearChunkBit(yaffs_Device * dev, int blk, int chunk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - yaffs_VerifyChunkBitId(dev,blk,chunk); - - blkBits[chunk / 8] &= ~(1 << (chunk & 7)); -} - -static Y_INLINE void yaffs_SetChunkBit(yaffs_Device * dev, int blk, int chunk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - - yaffs_VerifyChunkBitId(dev,blk,chunk); - - blkBits[chunk / 8] |= (1 << (chunk & 7)); -} - -static Y_INLINE int yaffs_CheckChunkBit(yaffs_Device * dev, int blk, int chunk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - yaffs_VerifyChunkBitId(dev,blk,chunk); - - return (blkBits[chunk / 8] & (1 << (chunk & 7))) ? 1 : 0; -} - -static Y_INLINE int yaffs_StillSomeChunkBits(yaffs_Device * dev, int blk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - int i; - for (i = 0; i < dev->chunkBitmapStride; i++) { - if (*blkBits) - return 1; - blkBits++; - } - return 0; -} - -static int yaffs_CountChunkBits(yaffs_Device * dev, int blk) -{ - __u8 *blkBits = yaffs_BlockBits(dev, blk); - int i; - int n = 0; - for (i = 0; i < dev->chunkBitmapStride; i++) { - __u8 x = *blkBits; - while(x){ - if(x & 1) - n++; - x >>=1; - } - - blkBits++; - } - return n; -} - -/* - * Verification code - */ - -static int yaffs_SkipVerification(yaffs_Device *dev) -{ - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY | YAFFS_TRACE_VERIFY_FULL)); -} - -static int yaffs_SkipFullVerification(yaffs_Device *dev) -{ - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_FULL)); -} - -static int yaffs_SkipNANDVerification(yaffs_Device *dev) -{ - return !(yaffs_traceMask & (YAFFS_TRACE_VERIFY_NAND)); -} - -static const char * blockStateName[] = { -"Unknown", -"Needs scanning", -"Scanning", -"Empty", -"Allocating", -"Full", -"Dirty", -"Checkpoint", -"Collecting", -"Dead" -}; - -static void yaffs_VerifyBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) -{ - int actuallyUsed; - int inUse; - - if(yaffs_SkipVerification(dev)) - return; - - /* Report illegal runtime states */ - if(bi->blockState <0 || bi->blockState >= YAFFS_NUMBER_OF_BLOCK_STATES) - T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has undefined state %d"TENDSTR),n,bi->blockState)); - - switch(bi->blockState){ - case YAFFS_BLOCK_STATE_UNKNOWN: - case YAFFS_BLOCK_STATE_SCANNING: - case YAFFS_BLOCK_STATE_NEEDS_SCANNING: - T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has bad run-state %s"TENDSTR), - n,blockStateName[bi->blockState])); - } - - /* Check pages in use and soft deletions are legal */ - - actuallyUsed = bi->pagesInUse - bi->softDeletions; - - if(bi->pagesInUse < 0 || bi->pagesInUse > dev->nChunksPerBlock || - bi->softDeletions < 0 || bi->softDeletions > dev->nChunksPerBlock || - actuallyUsed < 0 || actuallyUsed > dev->nChunksPerBlock) - T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has illegal values pagesInUsed %d softDeletions %d"TENDSTR), - n,bi->pagesInUse,bi->softDeletions)); - - - /* Check chunk bitmap legal */ - inUse = yaffs_CountChunkBits(dev,n); - if(inUse != bi->pagesInUse) - T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has inconsistent values pagesInUse %d counted chunk bits %d"TENDSTR), - n,bi->pagesInUse,inUse)); - - /* Check that the sequence number is valid. - * Ten million is legal, but is very unlikely - */ - if(dev->isYaffs2 && - (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || bi->blockState == YAFFS_BLOCK_STATE_FULL) && - (bi->sequenceNumber < YAFFS_LOWEST_SEQUENCE_NUMBER || bi->sequenceNumber > 10000000 )) - T(YAFFS_TRACE_VERIFY,(TSTR("Block %d has suspect sequence number of %d"TENDSTR), - n,bi->sequenceNumber)); - -} - -static void yaffs_VerifyCollectedBlock(yaffs_Device *dev,yaffs_BlockInfo *bi,int n) -{ - yaffs_VerifyBlock(dev,bi,n); - - /* After collection the block should be in the erased state */ - /* TODO: This will need to change if we do partial gc */ - - if(bi->blockState != YAFFS_BLOCK_STATE_EMPTY){ - T(YAFFS_TRACE_ERROR,(TSTR("Block %d is in state %d after gc, should be erased"TENDSTR), - n,bi->blockState)); - } -} - -static void yaffs_VerifyBlocks(yaffs_Device *dev) -{ - int i; - int nBlocksPerState[YAFFS_NUMBER_OF_BLOCK_STATES]; - int nIllegalBlockStates = 0; - - - if(yaffs_SkipVerification(dev)) - return; - - memset(nBlocksPerState,0,sizeof(nBlocksPerState)); - - - for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++){ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i); - yaffs_VerifyBlock(dev,bi,i); - - if(bi->blockState >=0 && bi->blockState < YAFFS_NUMBER_OF_BLOCK_STATES) - nBlocksPerState[bi->blockState]++; - else - nIllegalBlockStates++; - - } - - T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); - T(YAFFS_TRACE_VERIFY,(TSTR("Block summary"TENDSTR))); - - T(YAFFS_TRACE_VERIFY,(TSTR("%d blocks have illegal states"TENDSTR),nIllegalBlockStates)); - if(nBlocksPerState[YAFFS_BLOCK_STATE_ALLOCATING] > 1) - T(YAFFS_TRACE_VERIFY,(TSTR("Too many allocating blocks"TENDSTR))); - - for(i = 0; i < YAFFS_NUMBER_OF_BLOCK_STATES; i++) - T(YAFFS_TRACE_VERIFY, - (TSTR("%s %d blocks"TENDSTR), - blockStateName[i],nBlocksPerState[i])); - - if(dev->blocksInCheckpoint != nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT]) - T(YAFFS_TRACE_VERIFY, - (TSTR("Checkpoint block count wrong dev %d count %d"TENDSTR), - dev->blocksInCheckpoint, nBlocksPerState[YAFFS_BLOCK_STATE_CHECKPOINT])); - - if(dev->nErasedBlocks != nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY]) - T(YAFFS_TRACE_VERIFY, - (TSTR("Erased block count wrong dev %d count %d"TENDSTR), - dev->nErasedBlocks, nBlocksPerState[YAFFS_BLOCK_STATE_EMPTY])); - - if(nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING] > 1) - T(YAFFS_TRACE_VERIFY, - (TSTR("Too many collecting blocks %d (max is 1)"TENDSTR), - nBlocksPerState[YAFFS_BLOCK_STATE_COLLECTING])); - - T(YAFFS_TRACE_VERIFY,(TSTR(""TENDSTR))); - -} - -/* - * Verify the object header. oh must be valid, but obj and tags may be NULL in which - * case those tests will not be performed. - */ -static void yaffs_VerifyObjectHeader(yaffs_Object *obj, yaffs_ObjectHeader *oh, yaffs_ExtendedTags *tags, int parentCheck) -{ - if(yaffs_SkipVerification(obj->myDev)) - return; - - if(!(tags && obj && oh)){ - T(YAFFS_TRACE_VERIFY, - (TSTR("Verifying object header tags %x obj %x oh %x"TENDSTR), - (__u32)tags,(__u32)obj,(__u32)oh)); - return; - } - - if(oh->type <= YAFFS_OBJECT_TYPE_UNKNOWN || - oh->type > YAFFS_OBJECT_TYPE_MAX) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header type is illegal value 0x%x"TENDSTR), - tags->objectId, oh->type)); - - if(tags->objectId != obj->objectId) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header mismatch objectId %d"TENDSTR), - tags->objectId, obj->objectId)); - - - /* - * Check that the object's parent ids match if parentCheck requested. - * - * Tests do not apply to the root object. - */ - - if(parentCheck && tags->objectId > 1 && !obj->parent) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header mismatch parentId %d obj->parent is NULL"TENDSTR), - tags->objectId, oh->parentObjectId)); - - - if(parentCheck && obj->parent && - oh->parentObjectId != obj->parent->objectId && - (oh->parentObjectId != YAFFS_OBJECTID_UNLINKED || - obj->parent->objectId != YAFFS_OBJECTID_DELETED)) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header mismatch parentId %d parentObjectId %d"TENDSTR), - tags->objectId, oh->parentObjectId, obj->parent->objectId)); - - - if(tags->objectId > 1 && oh->name[0] == 0) /* Null name */ - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header name is NULL"TENDSTR), - obj->objectId)); - - if(tags->objectId > 1 && ((__u8)(oh->name[0])) == 0xff) /* Trashed name */ - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d header name is 0xFF"TENDSTR), - obj->objectId)); -} - - - -static int yaffs_VerifyTnodeWorker(yaffs_Object * obj, yaffs_Tnode * tn, - __u32 level, int chunkOffset) -{ - int i; - yaffs_Device *dev = obj->myDev; - int ok = 1; - int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tn) { - if (level > 0) { - - for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ - if (tn->internal[i]) { - ok = yaffs_VerifyTnodeWorker(obj, - tn->internal[i], - level - 1, - (chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i); - } - } - } else if (level == 0) { - int i; - yaffs_ExtendedTags tags; - __u32 objectId = obj->objectId; - - chunkOffset <<= YAFFS_TNODES_LEVEL0_BITS; - - for(i = 0; i < YAFFS_NTNODES_LEVEL0; i++){ - __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); - - if(theChunk > 0){ - /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),tags.objectId,tags.chunkId,theChunk)); */ - yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); - if(tags.objectId != objectId || tags.chunkId != chunkOffset){ - T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), - objectId, chunkOffset, theChunk, - tags.objectId, tags.chunkId)); - } - } - chunkOffset++; - } - } - } - - return ok; - -} - - -static void yaffs_VerifyFile(yaffs_Object *obj) -{ - int requiredTallness; - int actualTallness; - __u32 lastChunk; - __u32 x; - __u32 i; - int ok; - yaffs_Device *dev; - yaffs_ExtendedTags tags; - yaffs_Tnode *tn; - __u32 objectId; - - if(obj && yaffs_SkipVerification(obj->myDev)) - return; - - dev = obj->myDev; - objectId = obj->objectId; - - /* Check file size is consistent with tnode depth */ - lastChunk = obj->variant.fileVariant.fileSize / dev->nDataBytesPerChunk + 1; - x = lastChunk >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; - while (x> 0) { - x >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - actualTallness = obj->variant.fileVariant.topLevel; - - if(requiredTallness > actualTallness ) - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d had tnode tallness %d, needs to be %d"TENDSTR), - obj->objectId,actualTallness, requiredTallness)); - - - /* Check that the chunks in the tnode tree are all correct. - * We do this by scanning through the tnode tree and - * checking the tags for every chunk match. - */ - - if(yaffs_SkipNANDVerification(dev)) - return; - - for(i = 1; i <= lastChunk; i++){ - tn = yaffs_FindLevel0Tnode(dev, &obj->variant.fileVariant,i); - - if (tn) { - __u32 theChunk = yaffs_GetChunkGroupBase(dev,tn,i); - if(theChunk > 0){ - /* T(~0,(TSTR("verifying (%d:%d) %d"TENDSTR),objectId,i,theChunk)); */ - yaffs_ReadChunkWithTagsFromNAND(dev,theChunk,NULL, &tags); - if(tags.objectId != objectId || tags.chunkId != i){ - T(~0,(TSTR("Object %d chunkId %d NAND mismatch chunk %d tags (%d:%d)"TENDSTR), - objectId, i, theChunk, - tags.objectId, tags.chunkId)); - } - } - } - - } - -} - -static void yaffs_VerifyDirectory(yaffs_Object *obj) -{ - if(obj && yaffs_SkipVerification(obj->myDev)) - return; - -} - -static void yaffs_VerifyHardLink(yaffs_Object *obj) -{ - if(obj && yaffs_SkipVerification(obj->myDev)) - return; - - /* Verify sane equivalent object */ -} - -static void yaffs_VerifySymlink(yaffs_Object *obj) -{ - if(obj && yaffs_SkipVerification(obj->myDev)) - return; - - /* Verify symlink string */ -} - -static void yaffs_VerifySpecial(yaffs_Object *obj) -{ - if(obj && yaffs_SkipVerification(obj->myDev)) - return; -} - -static void yaffs_VerifyObject(yaffs_Object *obj) -{ - yaffs_Device *dev; - - __u32 chunkMin; - __u32 chunkMax; - - __u32 chunkIdOk; - __u32 chunkIsLive; - - if(!obj) - return; - - dev = obj->myDev; - - if(yaffs_SkipVerification(dev)) - return; - - /* Check sane object header chunk */ - - chunkMin = dev->internalStartBlock * dev->nChunksPerBlock; - chunkMax = (dev->internalEndBlock+1) * dev->nChunksPerBlock - 1; - - chunkIdOk = (obj->chunkId >= chunkMin && obj->chunkId <= chunkMax); - chunkIsLive = chunkIdOk && - yaffs_CheckChunkBit(dev, - obj->chunkId / dev->nChunksPerBlock, - obj->chunkId % dev->nChunksPerBlock); - if(!obj->fake && - (!chunkIdOk || !chunkIsLive)) { - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has chunkId %d %s %s"TENDSTR), - obj->objectId,obj->chunkId, - chunkIdOk ? "" : ",out of range", - chunkIsLive || !chunkIdOk ? "" : ",marked as deleted")); - } - - if(chunkIdOk && chunkIsLive &&!yaffs_SkipNANDVerification(dev)) { - yaffs_ExtendedTags tags; - yaffs_ObjectHeader *oh; - __u8 *buffer = yaffs_GetTempBuffer(dev,__LINE__); - - oh = (yaffs_ObjectHeader *)buffer; - - yaffs_ReadChunkWithTagsFromNAND(dev, obj->chunkId,buffer, &tags); - - yaffs_VerifyObjectHeader(obj,oh,&tags,1); - - yaffs_ReleaseTempBuffer(dev,buffer,__LINE__); - } - - /* Verify it has a parent */ - if(obj && !obj->fake && - (!obj->parent || obj->parent->myDev != dev)){ - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has parent pointer %p which does not look like an object"TENDSTR), - obj->objectId,obj->parent)); - } - - /* Verify parent is a directory */ - if(obj->parent && obj->parent->variantType != YAFFS_OBJECT_TYPE_DIRECTORY){ - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d's parent is not a directory (type %d)"TENDSTR), - obj->objectId,obj->parent->variantType)); - } - - switch(obj->variantType){ - case YAFFS_OBJECT_TYPE_FILE: - yaffs_VerifyFile(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - yaffs_VerifySymlink(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - yaffs_VerifyDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - yaffs_VerifyHardLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - yaffs_VerifySpecial(obj); - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: - default: - T(YAFFS_TRACE_VERIFY, - (TSTR("Obj %d has illegaltype %d"TENDSTR), - obj->objectId,obj->variantType)); - break; - } - - -} - -static void yaffs_VerifyObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - int i; - struct list_head *lh; - - if(yaffs_SkipVerification(dev)) - return; - - /* Iterate through the objects in each hash entry */ - - for(i = 0; i < YAFFS_NOBJECT_BUCKETS; i++){ - list_for_each(lh, &dev->objectBucket[i].list) { - if (lh) { - obj = list_entry(lh, yaffs_Object, hashLink); - yaffs_VerifyObject(obj); - } - } - } - -} - - -/* - * Simple hash function. Needs to have a reasonable spread - */ - -static Y_INLINE int yaffs_HashFunction(int n) -{ - n = abs(n); - return (n % YAFFS_NOBJECT_BUCKETS); -} - -/* - * Access functions to useful fake objects - */ - -yaffs_Object *yaffs_Root(yaffs_Device * dev) -{ - return dev->rootDir; -} - -yaffs_Object *yaffs_LostNFound(yaffs_Device * dev) -{ - return dev->lostNFoundDir; -} - - -/* - * Erased NAND checking functions - */ - -int yaffs_CheckFF(__u8 * buffer, int nBytes) -{ - /* Horrible, slow implementation */ - while (nBytes--) { - if (*buffer != 0xFF) - return 0; - buffer++; - } - return 1; -} - -static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND) -{ - - int retval = YAFFS_OK; - __u8 *data = yaffs_GetTempBuffer(dev, __LINE__); - yaffs_ExtendedTags tags; - int result; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunkInNAND, data, &tags); - - if(tags.eccResult > YAFFS_ECC_RESULT_NO_ERROR) - retval = YAFFS_FAIL; - - - if (!yaffs_CheckFF(data, dev->nDataBytesPerChunk) || tags.chunkUsed) { - T(YAFFS_TRACE_NANDACCESS, - (TSTR("Chunk %d not erased" TENDSTR), chunkInNAND)); - retval = YAFFS_FAIL; - } - - yaffs_ReleaseTempBuffer(dev, data, __LINE__); - - return retval; - -} - - -static int yaffs_WriteNewChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, - const __u8 * data, - yaffs_ExtendedTags * tags, - int useReserve) -{ - int attempts = 0; - int writeOk = 0; - int chunk; - - yaffs_InvalidateCheckpoint(dev); - - do { - yaffs_BlockInfo *bi = 0; - int erasedOk = 0; - - chunk = yaffs_AllocateChunk(dev, useReserve, &bi); - if (chunk < 0) { - /* no space */ - break; - } - - /* First check this chunk is erased, if it needs - * checking. The checking policy (unless forced - * always on) is as follows: - * - * Check the first page we try to write in a block. - * If the check passes then we don't need to check any - * more. If the check fails, we check again... - * If the block has been erased, we don't need to check. - * - * However, if the block has been prioritised for gc, - * then we think there might be something odd about - * this block and stop using it. - * - * Rationale: We should only ever see chunks that have - * not been erased if there was a partially written - * chunk due to power loss. This checking policy should - * catch that case with very few checks and thus save a - * lot of checks that are most likely not needed. - */ - if (bi->gcPrioritise) { - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - /* try another chunk */ - continue; - } - - /* let's give it a try */ - attempts++; - -#ifdef CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED - bi->skipErasedCheck = 0; -#endif - if (!bi->skipErasedCheck) { - erasedOk = yaffs_CheckChunkErased(dev, chunk); - if (erasedOk != YAFFS_OK) { - T(YAFFS_TRACE_ERROR, - (TSTR ("**>> yaffs chunk %d was not erased" - TENDSTR), chunk)); - - /* try another chunk */ - continue; - } - bi->skipErasedCheck = 1; - } - - writeOk = yaffs_WriteChunkWithTagsToNAND(dev, chunk, - data, tags); - if (writeOk != YAFFS_OK) { - yaffs_HandleWriteChunkError(dev, chunk, erasedOk); - /* try another chunk */ - continue; - } - - /* Copy the data into the robustification buffer */ - yaffs_HandleWriteChunkOk(dev, chunk, data, tags); - - } while (writeOk != YAFFS_OK && attempts < yaffs_wr_attempts); - - if (attempts > 1) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs write required %d attempts" TENDSTR), - attempts)); - - dev->nRetriedWrites += (attempts - 1); - } - - return chunk; -} - -/* - * Block retiring for handling a broken block. - */ - -static void yaffs_RetireBlock(yaffs_Device * dev, int blockInNAND) -{ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); - - yaffs_InvalidateCheckpoint(dev); - - yaffs_MarkBlockBad(dev, blockInNAND); - - bi->blockState = YAFFS_BLOCK_STATE_DEAD; - bi->gcPrioritise = 0; - bi->needsRetiring = 0; - - dev->nRetiredBlocks++; -} - -/* - * Functions for robustisizing TODO - * - */ - -static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * tags) -{ -} - -static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, - const yaffs_ExtendedTags * tags) -{ -} - -void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi) -{ - if(!bi->gcPrioritise){ - bi->gcPrioritise = 1; - dev->hasPendingPrioritisedGCs = 1; - bi->chunkErrorStrikes ++; - - if(bi->chunkErrorStrikes > 3){ - bi->needsRetiring = 1; /* Too many stikes, so retire this */ - T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Block struck out" TENDSTR))); - - } - - } -} - -static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND, int erasedOk) -{ - - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockInNAND); - - yaffs_HandleChunkError(dev,bi); - - - if(erasedOk ) { - /* Was an actual write failure, so mark the block for retirement */ - bi->needsRetiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Block %d needs retiring" TENDSTR), blockInNAND)); - - - } - - /* Delete the chunk */ - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); -} - - -/*---------------- Name handling functions ------------*/ - -static __u16 yaffs_CalcNameSum(const YCHAR * name) -{ - __u16 sum = 0; - __u16 i = 1; - - YUCHAR *bname = (YUCHAR *) name; - if (bname) { - while ((*bname) && (i < (YAFFS_MAX_NAME_LENGTH/2))) { - -#ifdef CONFIG_YAFFS_CASE_INSENSITIVE - sum += yaffs_toupper(*bname) * i; -#else - sum += (*bname) * i; -#endif - i++; - bname++; - } - } - return sum; -} - -static void yaffs_SetObjectName(yaffs_Object * obj, const YCHAR * name) -{ -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - if (name && yaffs_strlen(name) <= YAFFS_SHORT_NAME_LENGTH) { - yaffs_strcpy(obj->shortName, name); - } else { - obj->shortName[0] = _Y('\0'); - } -#endif - obj->sum = yaffs_CalcNameSum(name); -} - -/*-------------------- TNODES ------------------- - - * List of spare tnodes - * The list is hooked together using the first pointer - * in the tnode. - */ - -/* yaffs_CreateTnodes creates a bunch more tnodes and - * adds them to the tnode free list. - * Don't use this function directly - */ - -static int yaffs_CreateTnodes(yaffs_Device * dev, int nTnodes) -{ - int i; - int tnodeSize; - yaffs_Tnode *newTnodes; - __u8 *mem; - yaffs_Tnode *curr; - yaffs_Tnode *next; - yaffs_TnodeList *tnl; - - if (nTnodes < 1) - return YAFFS_OK; - - /* Calculate the tnode size in bytes for variable width tnode support. - * Must be a multiple of 32-bits */ - tnodeSize = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - /* make these things */ - - newTnodes = YMALLOC(nTnodes * tnodeSize); - mem = (__u8 *)newTnodes; - - if (!newTnodes) { - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs: Could not allocate Tnodes" TENDSTR))); - return YAFFS_FAIL; - } - - /* Hook them into the free list */ -#if 0 - for (i = 0; i < nTnodes - 1; i++) { - newTnodes[i].internal[0] = &newTnodes[i + 1]; -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - newTnodes[i].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; -#endif - } - - newTnodes[nTnodes - 1].internal[0] = dev->freeTnodes; -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - newTnodes[nTnodes - 1].internal[YAFFS_NTNODES_INTERNAL] = (void *)1; -#endif - dev->freeTnodes = newTnodes; -#else - /* New hookup for wide tnodes */ - for(i = 0; i < nTnodes -1; i++) { - curr = (yaffs_Tnode *) &mem[i * tnodeSize]; - next = (yaffs_Tnode *) &mem[(i+1) * tnodeSize]; - curr->internal[0] = next; - } - - curr = (yaffs_Tnode *) &mem[(nTnodes - 1) * tnodeSize]; - curr->internal[0] = dev->freeTnodes; - dev->freeTnodes = (yaffs_Tnode *)mem; - -#endif - - - dev->nFreeTnodes += nTnodes; - dev->nTnodesCreated += nTnodes; - - /* Now add this bunch of tnodes to a list for freeing up. - * NB If we can't add this to the management list it isn't fatal - * but it just means we can't free this bunch of tnodes later. - */ - - tnl = YMALLOC(sizeof(yaffs_TnodeList)); - if (!tnl) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs: Could not add tnodes to management list" TENDSTR))); - return YAFFS_FAIL; - - } else { - tnl->tnodes = newTnodes; - tnl->next = dev->allocatedTnodeList; - dev->allocatedTnodeList = tnl; - } - - T(YAFFS_TRACE_ALLOCATE, (TSTR("yaffs: Tnodes added" TENDSTR))); - - return YAFFS_OK; -} - -/* GetTnode gets us a clean tnode. Tries to make allocate more if we run out */ - -static yaffs_Tnode *yaffs_GetTnodeRaw(yaffs_Device * dev) -{ - yaffs_Tnode *tn = NULL; - - /* If there are none left make more */ - if (!dev->freeTnodes) { - yaffs_CreateTnodes(dev, YAFFS_ALLOCATION_NTNODES); - } - - if (dev->freeTnodes) { - tn = dev->freeTnodes; -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - if (tn->internal[YAFFS_NTNODES_INTERNAL] != (void *)1) { - /* Hoosterman, this thing looks like it isn't in the list */ - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: Tnode list bug 1" TENDSTR))); - } -#endif - dev->freeTnodes = dev->freeTnodes->internal[0]; - dev->nFreeTnodes--; - } - - return tn; -} - -static yaffs_Tnode *yaffs_GetTnode(yaffs_Device * dev) -{ - yaffs_Tnode *tn = yaffs_GetTnodeRaw(dev); - - if(tn) - memset(tn, 0, (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); - - return tn; -} - -/* FreeTnode frees up a tnode and puts it back on the free list */ -static void yaffs_FreeTnode(yaffs_Device * dev, yaffs_Tnode * tn) -{ - if (tn) { -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - if (tn->internal[YAFFS_NTNODES_INTERNAL] != 0) { - /* Hoosterman, this thing looks like it is already in the list */ - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: Tnode list bug 2" TENDSTR))); - } - tn->internal[YAFFS_NTNODES_INTERNAL] = (void *)1; -#endif - tn->internal[0] = dev->freeTnodes; - dev->freeTnodes = tn; - dev->nFreeTnodes++; - } -} - -static void yaffs_DeinitialiseTnodes(yaffs_Device * dev) -{ - /* Free the list of allocated tnodes */ - yaffs_TnodeList *tmp; - - while (dev->allocatedTnodeList) { - tmp = dev->allocatedTnodeList->next; - - YFREE(dev->allocatedTnodeList->tnodes); - YFREE(dev->allocatedTnodeList); - dev->allocatedTnodeList = tmp; - - } - - dev->freeTnodes = NULL; - dev->nFreeTnodes = 0; -} - -static void yaffs_InitialiseTnodes(yaffs_Device * dev) -{ - dev->allocatedTnodeList = NULL; - dev->freeTnodes = NULL; - dev->nFreeTnodes = 0; - dev->nTnodesCreated = 0; - -} - - -void yaffs_PutLevel0Tnode(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos, unsigned val) -{ - __u32 *map = (__u32 *)tn; - __u32 bitInMap; - __u32 bitInWord; - __u32 wordInMap; - __u32 mask; - - pos &= YAFFS_TNODES_LEVEL0_MASK; - val >>= dev->chunkGroupBits; - - bitInMap = pos * dev->tnodeWidth; - wordInMap = bitInMap /32; - bitInWord = bitInMap & (32 -1); - - mask = dev->tnodeMask << bitInWord; - - map[wordInMap] &= ~mask; - map[wordInMap] |= (mask & (val << bitInWord)); - - if(dev->tnodeWidth > (32-bitInWord)) { - bitInWord = (32 - bitInWord); - wordInMap++;; - mask = dev->tnodeMask >> (/*dev->tnodeWidth -*/ bitInWord); - map[wordInMap] &= ~mask; - map[wordInMap] |= (mask & (val >> bitInWord)); - } -} - -static __u32 yaffs_GetChunkGroupBase(yaffs_Device *dev, yaffs_Tnode *tn, unsigned pos) -{ - __u32 *map = (__u32 *)tn; - __u32 bitInMap; - __u32 bitInWord; - __u32 wordInMap; - __u32 val; - - pos &= YAFFS_TNODES_LEVEL0_MASK; - - bitInMap = pos * dev->tnodeWidth; - wordInMap = bitInMap /32; - bitInWord = bitInMap & (32 -1); - - val = map[wordInMap] >> bitInWord; - - if(dev->tnodeWidth > (32-bitInWord)) { - bitInWord = (32 - bitInWord); - wordInMap++;; - val |= (map[wordInMap] << bitInWord); - } - - val &= dev->tnodeMask; - val <<= dev->chunkGroupBits; - - return val; -} - -/* ------------------- End of individual tnode manipulation -----------------*/ - -/* ---------Functions to manipulate the look-up tree (made up of tnodes) ------ - * The look up tree is represented by the top tnode and the number of topLevel - * in the tree. 0 means only the level 0 tnode is in the tree. - */ - -/* FindLevel0Tnode finds the level 0 tnode, if one exists. */ -static yaffs_Tnode *yaffs_FindLevel0Tnode(yaffs_Device * dev, - yaffs_FileStructure * fStruct, - __u32 chunkId) -{ - - yaffs_Tnode *tn = fStruct->top; - __u32 i; - int requiredTallness; - int level = fStruct->topLevel; - - /* Check sane level and chunk Id */ - if (level < 0 || level > YAFFS_TNODES_MAX_LEVEL) { - return NULL; - } - - if (chunkId > YAFFS_MAX_CHUNK_ID) { - return NULL; - } - - /* First check we're tall enough (ie enough topLevel) */ - - i = chunkId >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; - while (i) { - i >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - if (requiredTallness > fStruct->topLevel) { - /* Not tall enough, so we can't find it, return NULL. */ - return NULL; - } - - /* Traverse down to level 0 */ - while (level > 0 && tn) { - tn = tn-> - internal[(chunkId >> - ( YAFFS_TNODES_LEVEL0_BITS + - (level - 1) * - YAFFS_TNODES_INTERNAL_BITS) - ) & - YAFFS_TNODES_INTERNAL_MASK]; - level--; - - } - - return tn; -} - -/* AddOrFindLevel0Tnode finds the level 0 tnode if it exists, otherwise first expands the tree. - * This happens in two steps: - * 1. If the tree isn't tall enough, then make it taller. - * 2. Scan down the tree towards the level 0 tnode adding tnodes if required. - * - * Used when modifying the tree. - * - * If the tn argument is NULL, then a fresh tnode will be added otherwise the specified tn will - * be plugged into the ttree. - */ - -static yaffs_Tnode *yaffs_AddOrFindLevel0Tnode(yaffs_Device * dev, - yaffs_FileStructure * fStruct, - __u32 chunkId, - yaffs_Tnode *passedTn) -{ - - int requiredTallness; - int i; - int l; - yaffs_Tnode *tn; - - __u32 x; - - - /* Check sane level and page Id */ - if (fStruct->topLevel < 0 || fStruct->topLevel > YAFFS_TNODES_MAX_LEVEL) { - return NULL; - } - - if (chunkId > YAFFS_MAX_CHUNK_ID) { - return NULL; - } - - /* First check we're tall enough (ie enough topLevel) */ - - x = chunkId >> YAFFS_TNODES_LEVEL0_BITS; - requiredTallness = 0; - while (x) { - x >>= YAFFS_TNODES_INTERNAL_BITS; - requiredTallness++; - } - - - if (requiredTallness > fStruct->topLevel) { - /* Not tall enough,gotta make the tree taller */ - for (i = fStruct->topLevel; i < requiredTallness; i++) { - - tn = yaffs_GetTnode(dev); - - if (tn) { - tn->internal[0] = fStruct->top; - fStruct->top = tn; - } else { - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs: no more tnodes" TENDSTR))); - } - } - - fStruct->topLevel = requiredTallness; - } - - /* Traverse down to level 0, adding anything we need */ - - l = fStruct->topLevel; - tn = fStruct->top; - - if(l > 0) { - while (l > 0 && tn) { - x = (chunkId >> - ( YAFFS_TNODES_LEVEL0_BITS + - (l - 1) * YAFFS_TNODES_INTERNAL_BITS)) & - YAFFS_TNODES_INTERNAL_MASK; - - - if((l>1) && !tn->internal[x]){ - /* Add missing non-level-zero tnode */ - tn->internal[x] = yaffs_GetTnode(dev); - - } else if(l == 1) { - /* Looking from level 1 at level 0 */ - if (passedTn) { - /* If we already have one, then release it.*/ - if(tn->internal[x]) - yaffs_FreeTnode(dev,tn->internal[x]); - tn->internal[x] = passedTn; - - } else if(!tn->internal[x]) { - /* Don't have one, none passed in */ - tn->internal[x] = yaffs_GetTnode(dev); - } - } - - tn = tn->internal[x]; - l--; - } - } else { - /* top is level 0 */ - if(passedTn) { - memcpy(tn,passedTn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); - yaffs_FreeTnode(dev,passedTn); - } - } - - return tn; -} - -static int yaffs_FindChunkInGroup(yaffs_Device * dev, int theChunk, - yaffs_ExtendedTags * tags, int objectId, - int chunkInInode) -{ - int j; - - for (j = 0; theChunk && j < dev->chunkGroupSize; j++) { - if (yaffs_CheckChunkBit - (dev, theChunk / dev->nChunksPerBlock, - theChunk % dev->nChunksPerBlock)) { - yaffs_ReadChunkWithTagsFromNAND(dev, theChunk, NULL, - tags); - if (yaffs_TagsMatch(tags, objectId, chunkInInode)) { - /* found it; */ - return theChunk; - - } - } - theChunk++; - } - return -1; -} - - -/* DeleteWorker scans backwards through the tnode tree and deletes all the - * chunks and tnodes in the file - * Returns 1 if the tree was deleted. - * Returns 0 if it stopped early due to hitting the limit and the delete is incomplete. - */ - -static int yaffs_DeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, __u32 level, - int chunkOffset, int *limit) -{ - int i; - int chunkInInode; - int theChunk; - yaffs_ExtendedTags tags; - int foundChunk; - yaffs_Device *dev = in->myDev; - - int allDone = 1; - - if (tn) { - if (level > 0) { - - for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; - i--) { - if (tn->internal[i]) { - if (limit && (*limit) < 0) { - allDone = 0; - } else { - allDone = - yaffs_DeleteWorker(in, - tn-> - internal - [i], - level - - 1, - (chunkOffset - << - YAFFS_TNODES_INTERNAL_BITS) - + i, - limit); - } - if (allDone) { - yaffs_FreeTnode(dev, - tn-> - internal[i]); - tn->internal[i] = NULL; - } - } - - } - return (allDone) ? 1 : 0; - } else if (level == 0) { - int hitLimit = 0; - - for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0 && !hitLimit; - i--) { - theChunk = yaffs_GetChunkGroupBase(dev,tn,i); - if (theChunk) { - - chunkInInode = - (chunkOffset << - YAFFS_TNODES_LEVEL0_BITS) + i; - - foundChunk = - yaffs_FindChunkInGroup(dev, - theChunk, - &tags, - in->objectId, - chunkInInode); - - if (foundChunk > 0) { - yaffs_DeleteChunk(dev, - foundChunk, 1, - __LINE__); - in->nDataChunks--; - if (limit) { - *limit = *limit - 1; - if (*limit <= 0) { - hitLimit = 1; - } - } - - } - - yaffs_PutLevel0Tnode(dev,tn,i,0); - } - - } - return (i < 0) ? 1 : 0; - - } - - } - - return 1; - -} - -static void yaffs_SoftDeleteChunk(yaffs_Device * dev, int chunk) -{ - - yaffs_BlockInfo *theBlock; - - T(YAFFS_TRACE_DELETION, (TSTR("soft delete chunk %d" TENDSTR), chunk)); - - theBlock = yaffs_GetBlockInfo(dev, chunk / dev->nChunksPerBlock); - if (theBlock) { - theBlock->softDeletions++; - dev->nFreeChunks++; - } -} - -/* SoftDeleteWorker scans backwards through the tnode tree and soft deletes all the chunks in the file. - * All soft deleting does is increment the block's softdelete count and pulls the chunk out - * of the tnode. - * Thus, essentially this is the same as DeleteWorker except that the chunks are soft deleted. - */ - -static int yaffs_SoftDeleteWorker(yaffs_Object * in, yaffs_Tnode * tn, - __u32 level, int chunkOffset) -{ - int i; - int theChunk; - int allDone = 1; - yaffs_Device *dev = in->myDev; - - if (tn) { - if (level > 0) { - - for (i = YAFFS_NTNODES_INTERNAL - 1; allDone && i >= 0; - i--) { - if (tn->internal[i]) { - allDone = - yaffs_SoftDeleteWorker(in, - tn-> - internal[i], - level - 1, - (chunkOffset - << - YAFFS_TNODES_INTERNAL_BITS) - + i); - if (allDone) { - yaffs_FreeTnode(dev, - tn-> - internal[i]); - tn->internal[i] = NULL; - } else { - /* Hoosterman... how could this happen? */ - } - } - } - return (allDone) ? 1 : 0; - } else if (level == 0) { - - for (i = YAFFS_NTNODES_LEVEL0 - 1; i >= 0; i--) { - theChunk = yaffs_GetChunkGroupBase(dev,tn,i); - if (theChunk) { - /* Note this does not find the real chunk, only the chunk group. - * We make an assumption that a chunk group is not larger than - * a block. - */ - yaffs_SoftDeleteChunk(dev, theChunk); - yaffs_PutLevel0Tnode(dev,tn,i,0); - } - - } - return 1; - - } - - } - - return 1; - -} - -static void yaffs_SoftDeleteFile(yaffs_Object * obj) -{ - if (obj->deleted && - obj->variantType == YAFFS_OBJECT_TYPE_FILE && !obj->softDeleted) { - if (obj->nDataChunks <= 0) { - /* Empty file with no duplicate object headers, just delete it immediately */ - yaffs_FreeTnode(obj->myDev, - obj->variant.fileVariant.top); - obj->variant.fileVariant.top = NULL; - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: Deleting empty file %d" TENDSTR), - obj->objectId)); - yaffs_DoGenericObjectDeletion(obj); - } else { - yaffs_SoftDeleteWorker(obj, - obj->variant.fileVariant.top, - obj->variant.fileVariant. - topLevel, 0); - obj->softDeleted = 1; - } - } -} - -/* Pruning removes any part of the file structure tree that is beyond the - * bounds of the file (ie that does not point to chunks). - * - * A file should only get pruned when its size is reduced. - * - * Before pruning, the chunks must be pulled from the tree and the - * level 0 tnode entries must be zeroed out. - * Could also use this for file deletion, but that's probably better handled - * by a special case. - */ - -static yaffs_Tnode *yaffs_PruneWorker(yaffs_Device * dev, yaffs_Tnode * tn, - __u32 level, int del0) -{ - int i; - int hasData; - - if (tn) { - hasData = 0; - - for (i = 0; i < YAFFS_NTNODES_INTERNAL; i++) { - if (tn->internal[i] && level > 0) { - tn->internal[i] = - yaffs_PruneWorker(dev, tn->internal[i], - level - 1, - (i == 0) ? del0 : 1); - } - - if (tn->internal[i]) { - hasData++; - } - } - - if (hasData == 0 && del0) { - /* Free and return NULL */ - - yaffs_FreeTnode(dev, tn); - tn = NULL; - } - - } - - return tn; - -} - -static int yaffs_PruneFileStructure(yaffs_Device * dev, - yaffs_FileStructure * fStruct) -{ - int i; - int hasData; - int done = 0; - yaffs_Tnode *tn; - - if (fStruct->topLevel > 0) { - fStruct->top = - yaffs_PruneWorker(dev, fStruct->top, fStruct->topLevel, 0); - - /* Now we have a tree with all the non-zero branches NULL but the height - * is the same as it was. - * Let's see if we can trim internal tnodes to shorten the tree. - * We can do this if only the 0th element in the tnode is in use - * (ie all the non-zero are NULL) - */ - - while (fStruct->topLevel && !done) { - tn = fStruct->top; - - hasData = 0; - for (i = 1; i < YAFFS_NTNODES_INTERNAL; i++) { - if (tn->internal[i]) { - hasData++; - } - } - - if (!hasData) { - fStruct->top = tn->internal[0]; - fStruct->topLevel--; - yaffs_FreeTnode(dev, tn); - } else { - done = 1; - } - } - } - - return YAFFS_OK; -} - -/*-------------------- End of File Structure functions.-------------------*/ - -/* yaffs_CreateFreeObjects creates a bunch more objects and - * adds them to the object free list. - */ -static int yaffs_CreateFreeObjects(yaffs_Device * dev, int nObjects) -{ - int i; - yaffs_Object *newObjects; - yaffs_ObjectList *list; - - if (nObjects < 1) - return YAFFS_OK; - - /* make these things */ - newObjects = YMALLOC(nObjects * sizeof(yaffs_Object)); - list = YMALLOC(sizeof(yaffs_ObjectList)); - - if (!newObjects || !list) { - if(newObjects) - YFREE(newObjects); - if(list) - YFREE(list); - T(YAFFS_TRACE_ALLOCATE, - (TSTR("yaffs: Could not allocate more objects" TENDSTR))); - return YAFFS_FAIL; - } - - /* Hook them into the free list */ - for (i = 0; i < nObjects - 1; i++) { - newObjects[i].siblings.next = - (struct list_head *)(&newObjects[i + 1]); - } - - newObjects[nObjects - 1].siblings.next = (void *)dev->freeObjects; - dev->freeObjects = newObjects; - dev->nFreeObjects += nObjects; - dev->nObjectsCreated += nObjects; - - /* Now add this bunch of Objects to a list for freeing up. */ - - list->objects = newObjects; - list->next = dev->allocatedObjectList; - dev->allocatedObjectList = list; - - return YAFFS_OK; -} - - -/* AllocateEmptyObject gets us a clean Object. Tries to make allocate more if we run out */ -static yaffs_Object *yaffs_AllocateEmptyObject(yaffs_Device * dev) -{ - yaffs_Object *tn = NULL; - - /* If there are none left make more */ - if (!dev->freeObjects) { - yaffs_CreateFreeObjects(dev, YAFFS_ALLOCATION_NOBJECTS); - } - - if (dev->freeObjects) { - tn = dev->freeObjects; - dev->freeObjects = - (yaffs_Object *) (dev->freeObjects->siblings.next); - dev->nFreeObjects--; - - /* Now sweeten it up... */ - - memset(tn, 0, sizeof(yaffs_Object)); - tn->myDev = dev; - tn->chunkId = -1; - tn->variantType = YAFFS_OBJECT_TYPE_UNKNOWN; - INIT_LIST_HEAD(&(tn->hardLinks)); - INIT_LIST_HEAD(&(tn->hashLink)); - INIT_LIST_HEAD(&tn->siblings); - - /* Add it to the lost and found directory. - * NB Can't put root or lostNFound in lostNFound so - * check if lostNFound exists first - */ - if (dev->lostNFoundDir) { - yaffs_AddObjectToDirectory(dev->lostNFoundDir, tn); - } - } - - return tn; -} - -static yaffs_Object *yaffs_CreateFakeDirectory(yaffs_Device * dev, int number, - __u32 mode) -{ - - yaffs_Object *obj = - yaffs_CreateNewObject(dev, number, YAFFS_OBJECT_TYPE_DIRECTORY); - if (obj) { - obj->fake = 1; /* it is fake so it has no NAND presence... */ - obj->renameAllowed = 0; /* ... and we're not allowed to rename it... */ - obj->unlinkAllowed = 0; /* ... or unlink it */ - obj->deleted = 0; - obj->unlinked = 0; - obj->yst_mode = mode; - obj->myDev = dev; - obj->chunkId = 0; /* Not a valid chunk. */ - } - - return obj; - -} - -static void yaffs_UnhashObject(yaffs_Object * tn) -{ - int bucket; - yaffs_Device *dev = tn->myDev; - - /* If it is still linked into the bucket list, free from the list */ - if (!list_empty(&tn->hashLink)) { - list_del_init(&tn->hashLink); - bucket = yaffs_HashFunction(tn->objectId); - dev->objectBucket[bucket].count--; - } - -} - -/* FreeObject frees up a Object and puts it back on the free list */ -static void yaffs_FreeObject(yaffs_Object * tn) -{ - - yaffs_Device *dev = tn->myDev; - -#ifdef __KERNEL__ - if (tn->myInode) { - /* We're still hooked up to a cached inode. - * Don't delete now, but mark for later deletion - */ - tn->deferedFree = 1; - return; - } -#endif - - yaffs_UnhashObject(tn); - - /* Link into the free list. */ - tn->siblings.next = (struct list_head *)(dev->freeObjects); - dev->freeObjects = tn; - dev->nFreeObjects++; -} - -#ifdef __KERNEL__ - -void yaffs_HandleDeferedFree(yaffs_Object * obj) -{ - if (obj->deferedFree) { - yaffs_FreeObject(obj); - } -} - -#endif - -static void yaffs_DeinitialiseObjects(yaffs_Device * dev) -{ - /* Free the list of allocated Objects */ - - yaffs_ObjectList *tmp; - - while (dev->allocatedObjectList) { - tmp = dev->allocatedObjectList->next; - YFREE(dev->allocatedObjectList->objects); - YFREE(dev->allocatedObjectList); - - dev->allocatedObjectList = tmp; - } - - dev->freeObjects = NULL; - dev->nFreeObjects = 0; -} - -static void yaffs_InitialiseObjects(yaffs_Device * dev) -{ - int i; - - dev->allocatedObjectList = NULL; - dev->freeObjects = NULL; - dev->nFreeObjects = 0; - - for (i = 0; i < YAFFS_NOBJECT_BUCKETS; i++) { - INIT_LIST_HEAD(&dev->objectBucket[i].list); - dev->objectBucket[i].count = 0; - } - -} - -static int yaffs_FindNiceObjectBucket(yaffs_Device * dev) -{ - static int x = 0; - int i; - int l = 999; - int lowest = 999999; - - /* First let's see if we can find one that's empty. */ - - for (i = 0; i < 10 && lowest > 0; i++) { - x++; - x %= YAFFS_NOBJECT_BUCKETS; - if (dev->objectBucket[x].count < lowest) { - lowest = dev->objectBucket[x].count; - l = x; - } - - } - - /* If we didn't find an empty list, then try - * looking a bit further for a short one - */ - - for (i = 0; i < 10 && lowest > 3; i++) { - x++; - x %= YAFFS_NOBJECT_BUCKETS; - if (dev->objectBucket[x].count < lowest) { - lowest = dev->objectBucket[x].count; - l = x; - } - - } - - return l; -} - -static int yaffs_CreateNewObjectNumber(yaffs_Device * dev) -{ - int bucket = yaffs_FindNiceObjectBucket(dev); - - /* Now find an object value that has not already been taken - * by scanning the list. - */ - - int found = 0; - struct list_head *i; - - __u32 n = (__u32) bucket; - - /* yaffs_CheckObjectHashSanity(); */ - - while (!found) { - found = 1; - n += YAFFS_NOBJECT_BUCKETS; - if (1 || dev->objectBucket[bucket].count > 0) { - list_for_each(i, &dev->objectBucket[bucket].list) { - /* If there is already one in the list */ - if (i - && list_entry(i, yaffs_Object, - hashLink)->objectId == n) { - found = 0; - } - } - } - } - - - return n; -} - -static void yaffs_HashObject(yaffs_Object * in) -{ - int bucket = yaffs_HashFunction(in->objectId); - yaffs_Device *dev = in->myDev; - - list_add(&in->hashLink, &dev->objectBucket[bucket].list); - dev->objectBucket[bucket].count++; - -} - -yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number) -{ - int bucket = yaffs_HashFunction(number); - struct list_head *i; - yaffs_Object *in; - - list_for_each(i, &dev->objectBucket[bucket].list) { - /* Look if it is in the list */ - if (i) { - in = list_entry(i, yaffs_Object, hashLink); - if (in->objectId == number) { -#ifdef __KERNEL__ - /* Don't tell the VFS about this one if it is defered free */ - if (in->deferedFree) - return NULL; -#endif - - return in; - } - } - } - - return NULL; -} - -yaffs_Object *yaffs_CreateNewObject(yaffs_Device * dev, int number, - yaffs_ObjectType type) -{ - - yaffs_Object *theObject; - yaffs_Tnode *tn; - - if (number < 0) { - number = yaffs_CreateNewObjectNumber(dev); - } - - theObject = yaffs_AllocateEmptyObject(dev); - if(!theObject) - return NULL; - - if(type == YAFFS_OBJECT_TYPE_FILE){ - tn = yaffs_GetTnode(dev); - if(!tn){ - yaffs_FreeObject(theObject); - return NULL; - } - } - - - - if (theObject) { - theObject->fake = 0; - theObject->renameAllowed = 1; - theObject->unlinkAllowed = 1; - theObject->objectId = number; - yaffs_HashObject(theObject); - theObject->variantType = type; -#ifdef CONFIG_YAFFS_WINCE - yfsd_WinFileTimeNow(theObject->win_atime); - theObject->win_ctime[0] = theObject->win_mtime[0] = - theObject->win_atime[0]; - theObject->win_ctime[1] = theObject->win_mtime[1] = - theObject->win_atime[1]; - -#else - - theObject->yst_atime = theObject->yst_mtime = - theObject->yst_ctime = Y_CURRENT_TIME; -#endif - switch (type) { - case YAFFS_OBJECT_TYPE_FILE: - theObject->variant.fileVariant.fileSize = 0; - theObject->variant.fileVariant.scannedFileSize = 0; - theObject->variant.fileVariant.shrinkSize = 0xFFFFFFFF; /* max __u32 */ - theObject->variant.fileVariant.topLevel = 0; - theObject->variant.fileVariant.top = tn; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - INIT_LIST_HEAD(&theObject->variant.directoryVariant. - children); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - case YAFFS_OBJECT_TYPE_HARDLINK: - case YAFFS_OBJECT_TYPE_SPECIAL: - /* No action required */ - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* todo this should not happen */ - break; - } - } - - return theObject; -} - -static yaffs_Object *yaffs_FindOrCreateObjectByNumber(yaffs_Device * dev, - int number, - yaffs_ObjectType type) -{ - yaffs_Object *theObject = NULL; - - if (number > 0) { - theObject = yaffs_FindObjectByNumber(dev, number); - } - - if (!theObject) { - theObject = yaffs_CreateNewObject(dev, number, type); - } - - return theObject; - -} - - -static YCHAR *yaffs_CloneString(const YCHAR * str) -{ - YCHAR *newStr = NULL; - - if (str && *str) { - newStr = YMALLOC((yaffs_strlen(str) + 1) * sizeof(YCHAR)); - if(newStr) - yaffs_strcpy(newStr, str); - } - - return newStr; - -} - -/* - * Mknod (create) a new object. - * equivalentObject only has meaning for a hard link; - * aliasString only has meaning for a sumlink. - * rdev only has meaning for devices (a subset of special objects) - */ - -static yaffs_Object *yaffs_MknodObject(yaffs_ObjectType type, - yaffs_Object * parent, - const YCHAR * name, - __u32 mode, - __u32 uid, - __u32 gid, - yaffs_Object * equivalentObject, - const YCHAR * aliasString, __u32 rdev) -{ - yaffs_Object *in; - YCHAR *str; - - yaffs_Device *dev = parent->myDev; - - /* Check if the entry exists. If it does then fail the call since we don't want a dup.*/ - if (yaffs_FindObjectByName(parent, name)) { - return NULL; - } - - in = yaffs_CreateNewObject(dev, -1, type); - - if(type == YAFFS_OBJECT_TYPE_SYMLINK){ - str = yaffs_CloneString(aliasString); - if(!str){ - yaffs_FreeObject(in); - return NULL; - } - } - - - - if (in) { - in->chunkId = -1; - in->valid = 1; - in->variantType = type; - - in->yst_mode = mode; - -#ifdef CONFIG_YAFFS_WINCE - yfsd_WinFileTimeNow(in->win_atime); - in->win_ctime[0] = in->win_mtime[0] = in->win_atime[0]; - in->win_ctime[1] = in->win_mtime[1] = in->win_atime[1]; - -#else - in->yst_atime = in->yst_mtime = in->yst_ctime = Y_CURRENT_TIME; - - in->yst_rdev = rdev; - in->yst_uid = uid; - in->yst_gid = gid; -#endif - in->nDataChunks = 0; - - yaffs_SetObjectName(in, name); - in->dirty = 1; - - yaffs_AddObjectToDirectory(parent, in); - - in->myDev = parent->myDev; - - switch (type) { - case YAFFS_OBJECT_TYPE_SYMLINK: - in->variant.symLinkVariant.alias = str; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - in->variant.hardLinkVariant.equivalentObject = - equivalentObject; - in->variant.hardLinkVariant.equivalentObjectId = - equivalentObject->objectId; - list_add(&in->hardLinks, &equivalentObject->hardLinks); - break; - case YAFFS_OBJECT_TYPE_FILE: - case YAFFS_OBJECT_TYPE_DIRECTORY: - case YAFFS_OBJECT_TYPE_SPECIAL: - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* do nothing */ - break; - } - - if (yaffs_UpdateObjectHeader(in, name, 0, 0, 0) < 0) { - /* Could not create the object header, fail the creation */ - yaffs_DestroyObject(in); - in = NULL; - } - - } - - return in; -} - -yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_FILE, parent, name, mode, - uid, gid, NULL, NULL, 0); -} - -yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_DIRECTORY, parent, name, - mode, uid, gid, NULL, NULL, 0); -} - -yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SPECIAL, parent, name, mode, - uid, gid, NULL, NULL, rdev); -} - -yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid, - const YCHAR * alias) -{ - return yaffs_MknodObject(YAFFS_OBJECT_TYPE_SYMLINK, parent, name, mode, - uid, gid, NULL, alias, 0); -} - -/* yaffs_Link returns the object id of the equivalent object.*/ -yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, - yaffs_Object * equivalentObject) -{ - /* Get the real object in case we were fed a hard link as an equivalent object */ - equivalentObject = yaffs_GetEquivalentObject(equivalentObject); - - if (yaffs_MknodObject - (YAFFS_OBJECT_TYPE_HARDLINK, parent, name, 0, 0, 0, - equivalentObject, NULL, 0)) { - return equivalentObject; - } else { - return NULL; - } - -} - -static int yaffs_ChangeObjectName(yaffs_Object * obj, yaffs_Object * newDir, - const YCHAR * newName, int force, int shadows) -{ - int unlinkOp; - int deleteOp; - - yaffs_Object *existingTarget; - - if (newDir == NULL) { - newDir = obj->parent; /* use the old directory */ - } - - if (newDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragendy: yaffs_ChangeObjectName: newDir is not a directory" - TENDSTR))); - YBUG(); - } - - /* TODO: Do we need this different handling for YAFFS2 and YAFFS1?? */ - if (obj->myDev->isYaffs2) { - unlinkOp = (newDir == obj->myDev->unlinkedDir); - } else { - unlinkOp = (newDir == obj->myDev->unlinkedDir - && obj->variantType == YAFFS_OBJECT_TYPE_FILE); - } - - deleteOp = (newDir == obj->myDev->deletedDir); - - existingTarget = yaffs_FindObjectByName(newDir, newName); - - /* If the object is a file going into the unlinked directory, - * then it is OK to just stuff it in since duplicate names are allowed. - * else only proceed if the new name does not exist and if we're putting - * it into a directory. - */ - if ((unlinkOp || - deleteOp || - force || - (shadows > 0) || - !existingTarget) && - newDir->variantType == YAFFS_OBJECT_TYPE_DIRECTORY) { - yaffs_SetObjectName(obj, newName); - obj->dirty = 1; - - yaffs_AddObjectToDirectory(newDir, obj); - - if (unlinkOp) - obj->unlinked = 1; - - /* If it is a deletion then we mark it as a shrink for gc purposes. */ - if (yaffs_UpdateObjectHeader(obj, newName, 0, deleteOp, shadows)>= 0) - return YAFFS_OK; - } - - return YAFFS_FAIL; -} - -int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, - yaffs_Object * newDir, const YCHAR * newName) -{ - yaffs_Object *obj; - yaffs_Object *existingTarget; - int force = 0; - -#ifdef CONFIG_YAFFS_CASE_INSENSITIVE - /* Special case for case insemsitive systems (eg. WinCE). - * While look-up is case insensitive, the name isn't. - * Therefore we might want to change x.txt to X.txt - */ - if (oldDir == newDir && yaffs_strcmp(oldName, newName) == 0) { - force = 1; - } -#endif - - obj = yaffs_FindObjectByName(oldDir, oldName); - /* Check new name to long. */ - if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK && - yaffs_strlen(newName) > YAFFS_MAX_ALIAS_LENGTH) - /* ENAMETOOLONG */ - return YAFFS_FAIL; - else if (obj->variantType != YAFFS_OBJECT_TYPE_SYMLINK && - yaffs_strlen(newName) > YAFFS_MAX_NAME_LENGTH) - /* ENAMETOOLONG */ - return YAFFS_FAIL; - - if (obj && obj->renameAllowed) { - - /* Now do the handling for an existing target, if there is one */ - - existingTarget = yaffs_FindObjectByName(newDir, newName); - if (existingTarget && - existingTarget->variantType == YAFFS_OBJECT_TYPE_DIRECTORY && - !list_empty(&existingTarget->variant.directoryVariant.children)) { - /* There is a target that is a non-empty directory, so we fail */ - return YAFFS_FAIL; /* EEXIST or ENOTEMPTY */ - } else if (existingTarget && existingTarget != obj) { - /* Nuke the target first, using shadowing, - * but only if it isn't the same object - */ - yaffs_ChangeObjectName(obj, newDir, newName, force, - existingTarget->objectId); - yaffs_UnlinkObject(existingTarget); - } - - return yaffs_ChangeObjectName(obj, newDir, newName, 1, 0); - } - return YAFFS_FAIL; -} - -/*------------------------- Block Management and Page Allocation ----------------*/ - -static int yaffs_InitialiseBlocks(yaffs_Device * dev) -{ - int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - - dev->blockInfo = NULL; - dev->chunkBits = NULL; - - dev->allocationBlock = -1; /* force it to get a new one */ - - /* If the first allocation strategy fails, thry the alternate one */ - dev->blockInfo = YMALLOC(nBlocks * sizeof(yaffs_BlockInfo)); - if(!dev->blockInfo){ - dev->blockInfo = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockInfo)); - dev->blockInfoAlt = 1; - } - else - dev->blockInfoAlt = 0; - - if(dev->blockInfo){ - - /* Set up dynamic blockinfo stuff. */ - dev->chunkBitmapStride = (dev->nChunksPerBlock + 7) / 8; /* round up bytes */ - dev->chunkBits = YMALLOC(dev->chunkBitmapStride * nBlocks); - if(!dev->chunkBits){ - dev->chunkBits = YMALLOC_ALT(dev->chunkBitmapStride * nBlocks); - dev->chunkBitsAlt = 1; - } - else - dev->chunkBitsAlt = 0; - } - - if (dev->blockInfo && dev->chunkBits) { - memset(dev->blockInfo, 0, nBlocks * sizeof(yaffs_BlockInfo)); - memset(dev->chunkBits, 0, dev->chunkBitmapStride * nBlocks); - return YAFFS_OK; - } - - return YAFFS_FAIL; - -} - -static void yaffs_DeinitialiseBlocks(yaffs_Device * dev) -{ - if(dev->blockInfoAlt && dev->blockInfo) - YFREE_ALT(dev->blockInfo); - else if(dev->blockInfo) - YFREE(dev->blockInfo); - - dev->blockInfoAlt = 0; - - dev->blockInfo = NULL; - - if(dev->chunkBitsAlt && dev->chunkBits) - YFREE_ALT(dev->chunkBits); - else if(dev->chunkBits) - YFREE(dev->chunkBits); - dev->chunkBitsAlt = 0; - dev->chunkBits = NULL; -} - -static int yaffs_BlockNotDisqualifiedFromGC(yaffs_Device * dev, - yaffs_BlockInfo * bi) -{ - int i; - __u32 seq; - yaffs_BlockInfo *b; - - if (!dev->isYaffs2) - return 1; /* disqualification only applies to yaffs2. */ - - if (!bi->hasShrinkHeader) - return 1; /* can gc */ - - /* Find the oldest dirty sequence number if we don't know it and save it - * so we don't have to keep recomputing it. - */ - if (!dev->oldestDirtySequence) { - seq = dev->sequenceNumber; - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; - i++) { - b = yaffs_GetBlockInfo(dev, i); - if (b->blockState == YAFFS_BLOCK_STATE_FULL && - (b->pagesInUse - b->softDeletions) < - dev->nChunksPerBlock && b->sequenceNumber < seq) { - seq = b->sequenceNumber; - } - } - dev->oldestDirtySequence = seq; - } - - /* Can't do gc of this block if there are any blocks older than this one that have - * discarded pages. - */ - return (bi->sequenceNumber <= dev->oldestDirtySequence); - -} - -/* FindDiretiestBlock is used to select the dirtiest block (or close enough) - * for garbage collection. - */ - -static int yaffs_FindBlockForGarbageCollection(yaffs_Device * dev, - int aggressive) -{ - - int b = dev->currentDirtyChecker; - - int i; - int iterations; - int dirtiest = -1; - int pagesInUse = 0; - int prioritised=0; - yaffs_BlockInfo *bi; - int pendingPrioritisedExist = 0; - - /* First let's see if we need to grab a prioritised block */ - if(dev->hasPendingPrioritisedGCs){ - for(i = dev->internalStartBlock; i < dev->internalEndBlock && !prioritised; i++){ - - bi = yaffs_GetBlockInfo(dev, i); - //yaffs_VerifyBlock(dev,bi,i); - - if(bi->gcPrioritise) { - pendingPrioritisedExist = 1; - if(bi->blockState == YAFFS_BLOCK_STATE_FULL && - yaffs_BlockNotDisqualifiedFromGC(dev, bi)){ - pagesInUse = (bi->pagesInUse - bi->softDeletions); - dirtiest = i; - prioritised = 1; - aggressive = 1; /* Fool the non-aggressive skip logiv below */ - } - } - } - - if(!pendingPrioritisedExist) /* None found, so we can clear this */ - dev->hasPendingPrioritisedGCs = 0; - } - - /* If we're doing aggressive GC then we are happy to take a less-dirty block, and - * search harder. - * else (we're doing a leasurely gc), then we only bother to do this if the - * block has only a few pages in use. - */ - - dev->nonAggressiveSkip--; - - if (!aggressive && (dev->nonAggressiveSkip > 0)) { - return -1; - } - - if(!prioritised) - pagesInUse = - (aggressive) ? dev->nChunksPerBlock : YAFFS_PASSIVE_GC_CHUNKS + 1; - - if (aggressive) { - iterations = - dev->internalEndBlock - dev->internalStartBlock + 1; - } else { - iterations = - dev->internalEndBlock - dev->internalStartBlock + 1; - iterations = iterations / 16; - if (iterations > 200) { - iterations = 200; - } - } - - for (i = 0; i <= iterations && pagesInUse > 0 && !prioritised; i++) { - b++; - if (b < dev->internalStartBlock || b > dev->internalEndBlock) { - b = dev->internalStartBlock; - } - - if (b < dev->internalStartBlock || b > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> Block %d is not valid" TENDSTR), b)); - YBUG(); - } - - bi = yaffs_GetBlockInfo(dev, b); - -#if 0 - if (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT) { - dirtiest = b; - pagesInUse = 0; - } - else -#endif - - if (bi->blockState == YAFFS_BLOCK_STATE_FULL && - (bi->pagesInUse - bi->softDeletions) < pagesInUse && - yaffs_BlockNotDisqualifiedFromGC(dev, bi)) { - dirtiest = b; - pagesInUse = (bi->pagesInUse - bi->softDeletions); - } - } - - dev->currentDirtyChecker = b; - - if (dirtiest > 0) { - T(YAFFS_TRACE_GC, - (TSTR("GC Selected block %d with %d free, prioritised:%d" TENDSTR), dirtiest, - dev->nChunksPerBlock - pagesInUse,prioritised)); - } - - dev->oldestDirtySequence = 0; - - if (dirtiest > 0) { - dev->nonAggressiveSkip = 4; - } - - return dirtiest; -} - -static void yaffs_BlockBecameDirty(yaffs_Device * dev, int blockNo) -{ - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, blockNo); - - int erasedOk = 0; - - /* If the block is still healthy erase it and mark as clean. - * If the block has had a data failure, then retire it. - */ - - T(YAFFS_TRACE_GC | YAFFS_TRACE_ERASE, - (TSTR("yaffs_BlockBecameDirty block %d state %d %s"TENDSTR), - blockNo, bi->blockState, (bi->needsRetiring) ? "needs retiring" : "")); - - bi->blockState = YAFFS_BLOCK_STATE_DIRTY; - - if (!bi->needsRetiring) { - yaffs_InvalidateCheckpoint(dev); - erasedOk = yaffs_EraseBlockInNAND(dev, blockNo); - if (!erasedOk) { - dev->nErasureFailures++; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Erasure failed %d" TENDSTR), blockNo)); - } - } - - if (erasedOk && - ((yaffs_traceMask & YAFFS_TRACE_ERASE) || !yaffs_SkipVerification(dev))) { - int i; - for (i = 0; i < dev->nChunksPerBlock; i++) { - if (!yaffs_CheckChunkErased - (dev, blockNo * dev->nChunksPerBlock + i)) { - T(YAFFS_TRACE_ERROR, - (TSTR - (">>Block %d erasure supposedly OK, but chunk %d not erased" - TENDSTR), blockNo, i)); - } - } - } - - if (erasedOk) { - /* Clean it up... */ - bi->blockState = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - bi->pagesInUse = 0; - bi->softDeletions = 0; - bi->hasShrinkHeader = 0; - bi->skipErasedCheck = 1; /* This is clean, so no need to check */ - bi->gcPrioritise = 0; - yaffs_ClearChunkBits(dev, blockNo); - - T(YAFFS_TRACE_ERASE, - (TSTR("Erased block %d" TENDSTR), blockNo)); - } else { - dev->nFreeChunks -= dev->nChunksPerBlock; /* We lost a block of free space */ - - yaffs_RetireBlock(dev, blockNo); - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>> Block %d retired" TENDSTR), blockNo)); - } -} - -static int yaffs_FindBlockForAllocation(yaffs_Device * dev) -{ - int i; - - yaffs_BlockInfo *bi; - - if (dev->nErasedBlocks < 1) { - /* Hoosterman we've got a problem. - * Can't get space to gc - */ - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs tragedy: no more eraased blocks" TENDSTR))); - - return -1; - } - - /* Find an empty block. */ - - for (i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) { - dev->allocationBlockFinder++; - if (dev->allocationBlockFinder < dev->internalStartBlock - || dev->allocationBlockFinder > dev->internalEndBlock) { - dev->allocationBlockFinder = dev->internalStartBlock; - } - - bi = yaffs_GetBlockInfo(dev, dev->allocationBlockFinder); - - if (bi->blockState == YAFFS_BLOCK_STATE_EMPTY) { - bi->blockState = YAFFS_BLOCK_STATE_ALLOCATING; - dev->sequenceNumber++; - bi->sequenceNumber = dev->sequenceNumber; - dev->nErasedBlocks--; - T(YAFFS_TRACE_ALLOCATE, - (TSTR("Allocated block %d, seq %d, %d left" TENDSTR), - dev->allocationBlockFinder, dev->sequenceNumber, - dev->nErasedBlocks)); - return dev->allocationBlockFinder; - } - } - - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs tragedy: no more eraased blocks, but there should have been %d" - TENDSTR), dev->nErasedBlocks)); - - return -1; -} - - -// Check if there's space to allocate... -// Thinks.... do we need top make this ths same as yaffs_GetFreeChunks()? -static int yaffs_CheckSpaceForAllocation(yaffs_Device * dev) -{ - int reservedChunks; - int reservedBlocks = dev->nReservedBlocks; - int checkpointBlocks; - - checkpointBlocks = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; - if(checkpointBlocks < 0) - checkpointBlocks = 0; - - reservedChunks = ((reservedBlocks + checkpointBlocks) * dev->nChunksPerBlock); - - return (dev->nFreeChunks > reservedChunks); -} - -static int yaffs_AllocateChunk(yaffs_Device * dev, int useReserve, yaffs_BlockInfo **blockUsedPtr) -{ - int retVal; - yaffs_BlockInfo *bi; - - if (dev->allocationBlock < 0) { - /* Get next block to allocate off */ - dev->allocationBlock = yaffs_FindBlockForAllocation(dev); - dev->allocationPage = 0; - } - - if (!useReserve && !yaffs_CheckSpaceForAllocation(dev)) { - /* Not enough space to allocate unless we're allowed to use the reserve. */ - return -1; - } - - if (dev->nErasedBlocks < dev->nReservedBlocks - && dev->allocationPage == 0) { - T(YAFFS_TRACE_ALLOCATE, (TSTR("Allocating reserve" TENDSTR))); - } - - /* Next page please.... */ - if (dev->allocationBlock >= 0) { - bi = yaffs_GetBlockInfo(dev, dev->allocationBlock); - - retVal = (dev->allocationBlock * dev->nChunksPerBlock) + - dev->allocationPage; - bi->pagesInUse++; - yaffs_SetChunkBit(dev, dev->allocationBlock, - dev->allocationPage); - - dev->allocationPage++; - - dev->nFreeChunks--; - - /* If the block is full set the state to full */ - if (dev->allocationPage >= dev->nChunksPerBlock) { - bi->blockState = YAFFS_BLOCK_STATE_FULL; - dev->allocationBlock = -1; - } - - if(blockUsedPtr) - *blockUsedPtr = bi; - - return retVal; - } - - T(YAFFS_TRACE_ERROR, - (TSTR("!!!!!!!!! Allocator out !!!!!!!!!!!!!!!!!" TENDSTR))); - - return -1; -} - -static int yaffs_GetErasedChunks(yaffs_Device * dev) -{ - int n; - - n = dev->nErasedBlocks * dev->nChunksPerBlock; - - if (dev->allocationBlock > 0) { - n += (dev->nChunksPerBlock - dev->allocationPage); - } - - return n; - -} - -static int yaffs_GarbageCollectBlock(yaffs_Device * dev, int block) -{ - int oldChunk; - int newChunk; - int chunkInBlock; - int markNAND; - int retVal = YAFFS_OK; - int cleanups = 0; - int i; - int isCheckpointBlock; - int matchingChunk; - - int chunksBefore = yaffs_GetErasedChunks(dev); - int chunksAfter; - - yaffs_ExtendedTags tags; - - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, block); - - yaffs_Object *object; - - isCheckpointBlock = (bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT); - - bi->blockState = YAFFS_BLOCK_STATE_COLLECTING; - - T(YAFFS_TRACE_TRACING, - (TSTR("Collecting block %d, in use %d, shrink %d, " TENDSTR), block, - bi->pagesInUse, bi->hasShrinkHeader)); - - /*yaffs_VerifyFreeChunks(dev); */ - - bi->hasShrinkHeader = 0; /* clear the flag so that the block can erase */ - - /* Take off the number of soft deleted entries because - * they're going to get really deleted during GC. - */ - dev->nFreeChunks -= bi->softDeletions; - - dev->isDoingGC = 1; - - if (isCheckpointBlock || - !yaffs_StillSomeChunkBits(dev, block)) { - T(YAFFS_TRACE_TRACING, - (TSTR - ("Collecting block %d that has no chunks in use" TENDSTR), - block)); - yaffs_BlockBecameDirty(dev, block); - } else { - - __u8 *buffer = yaffs_GetTempBuffer(dev, __LINE__); - - yaffs_VerifyBlock(dev,bi,block); - - for (chunkInBlock = 0, oldChunk = block * dev->nChunksPerBlock; - chunkInBlock < dev->nChunksPerBlock - && yaffs_StillSomeChunkBits(dev, block); - chunkInBlock++, oldChunk++) { - if (yaffs_CheckChunkBit(dev, block, chunkInBlock)) { - - /* This page is in use and might need to be copied off */ - - markNAND = 1; - - yaffs_InitialiseTags(&tags); - - yaffs_ReadChunkWithTagsFromNAND(dev, oldChunk, - buffer, &tags); - - object = - yaffs_FindObjectByNumber(dev, - tags.objectId); - - T(YAFFS_TRACE_GC_DETAIL, - (TSTR - ("Collecting page %d, %d %d %d " TENDSTR), - chunkInBlock, tags.objectId, tags.chunkId, - tags.byteCount)); - - if(object && !yaffs_SkipVerification(dev)){ - if(tags.chunkId == 0) - matchingChunk = object->chunkId; - else if(object->softDeleted) - matchingChunk = oldChunk; /* Defeat the test */ - else - matchingChunk = yaffs_FindChunkInFile(object,tags.chunkId,NULL); - - if(oldChunk != matchingChunk) - T(YAFFS_TRACE_ERROR, - (TSTR("gc: page in gc mismatch: %d %d %d %d"TENDSTR), - oldChunk,matchingChunk,tags.objectId, tags.chunkId)); - - } - - if (!object) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("page %d in gc has no object: %d %d %d " - TENDSTR), oldChunk, - tags.objectId, tags.chunkId, tags.byteCount)); - } - - if (object && object->deleted - && tags.chunkId != 0) { - /* Data chunk in a deleted file, throw it away - * It's a soft deleted data chunk, - * No need to copy this, just forget about it and - * fix up the object. - */ - - object->nDataChunks--; - - if (object->nDataChunks <= 0) { - /* remeber to clean up the object */ - dev->gcCleanupList[cleanups] = - tags.objectId; - cleanups++; - } - markNAND = 0; - } else if (0 - /* Todo object && object->deleted && object->nDataChunks == 0 */ - ) { - /* Deleted object header with no data chunks. - * Can be discarded and the file deleted. - */ - object->chunkId = 0; - yaffs_FreeTnode(object->myDev, - object->variant. - fileVariant.top); - object->variant.fileVariant.top = NULL; - yaffs_DoGenericObjectDeletion(object); - - } else if (object) { - /* It's either a data chunk in a live file or - * an ObjectHeader, so we're interested in it. - * NB Need to keep the ObjectHeaders of deleted files - * until the whole file has been deleted off - */ - tags.serialNumber++; - - dev->nGCCopies++; - - if (tags.chunkId == 0) { - /* It is an object Id, - * We need to nuke the shrinkheader flags first - * We no longer want the shrinkHeader flag since its work is done - * and if it is left in place it will mess up scanning. - * Also, clear out any shadowing stuff - */ - - yaffs_ObjectHeader *oh; - oh = (yaffs_ObjectHeader *)buffer; - oh->isShrink = 0; - oh->shadowsObject = -1; - tags.extraShadows = 0; - tags.extraIsShrinkHeader = 0; - - yaffs_VerifyObjectHeader(object,oh,&tags,1); - } - - newChunk = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &tags, 1); - - if (newChunk < 0) { - retVal = YAFFS_FAIL; - } else { - - /* Ok, now fix up the Tnodes etc. */ - - if (tags.chunkId == 0) { - /* It's a header */ - object->chunkId = newChunk; - object->serial = tags.serialNumber; - } else { - /* It's a data chunk */ - yaffs_PutChunkIntoFile - (object, - tags.chunkId, - newChunk, 0); - } - } - } - - yaffs_DeleteChunk(dev, oldChunk, markNAND, __LINE__); - - } - } - - yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - - - /* Do any required cleanups */ - for (i = 0; i < cleanups; i++) { - /* Time to delete the file too */ - object = - yaffs_FindObjectByNumber(dev, - dev->gcCleanupList[i]); - if (object) { - yaffs_FreeTnode(dev, - object->variant.fileVariant. - top); - object->variant.fileVariant.top = NULL; - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: About to finally delete object %d" - TENDSTR), object->objectId)); - yaffs_DoGenericObjectDeletion(object); - object->myDev->nDeletedFiles--; - } - - } - - } - - yaffs_VerifyCollectedBlock(dev,bi,block); - - if (chunksBefore >= (chunksAfter = yaffs_GetErasedChunks(dev))) { - T(YAFFS_TRACE_GC, - (TSTR - ("gc did not increase free chunks before %d after %d" - TENDSTR), chunksBefore, chunksAfter)); - } - - dev->isDoingGC = 0; - - return YAFFS_OK; -} - -/* New garbage collector - * If we're very low on erased blocks then we do aggressive garbage collection - * otherwise we do "leasurely" garbage collection. - * Aggressive gc looks further (whole array) and will accept less dirty blocks. - * Passive gc only inspects smaller areas and will only accept more dirty blocks. - * - * The idea is to help clear out space in a more spread-out manner. - * Dunno if it really does anything useful. - */ -static int yaffs_CheckGarbageCollection(yaffs_Device * dev) -{ - int block; - int aggressive; - int gcOk = YAFFS_OK; - int maxTries = 0; - - int checkpointBlockAdjust; - - if (dev->isDoingGC) { - /* Bail out so we don't get recursive gc */ - return YAFFS_OK; - } - - /* This loop should pass the first time. - * We'll only see looping here if the erase of the collected block fails. - */ - - do { - maxTries++; - - checkpointBlockAdjust = (dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint); - if(checkpointBlockAdjust < 0) - checkpointBlockAdjust = 0; - - if (dev->nErasedBlocks < (dev->nReservedBlocks + checkpointBlockAdjust + 2)) { - /* We need a block soon...*/ - aggressive = 1; - } else { - /* We're in no hurry */ - aggressive = 0; - } - - block = yaffs_FindBlockForGarbageCollection(dev, aggressive); - - if (block > 0) { - dev->garbageCollections++; - if (!aggressive) { - dev->passiveGarbageCollections++; - } - - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: GC erasedBlocks %d aggressive %d" TENDSTR), - dev->nErasedBlocks, aggressive)); - - gcOk = yaffs_GarbageCollectBlock(dev, block); - } - - if (dev->nErasedBlocks < (dev->nReservedBlocks) && block > 0) { - T(YAFFS_TRACE_GC, - (TSTR - ("yaffs: GC !!!no reclaim!!! erasedBlocks %d after try %d block %d" - TENDSTR), dev->nErasedBlocks, maxTries, block)); - } - } while ((dev->nErasedBlocks < dev->nReservedBlocks) && (block > 0) - && (maxTries < 2)); - - return aggressive ? gcOk : YAFFS_OK; -} - -/*------------------------- TAGS --------------------------------*/ - -static int yaffs_TagsMatch(const yaffs_ExtendedTags * tags, int objectId, - int chunkInObject) -{ - return (tags->chunkId == chunkInObject && - tags->objectId == objectId && !tags->chunkDeleted) ? 1 : 0; - -} - - -/*-------------------- Data file manipulation -----------------*/ - -static int yaffs_FindChunkInFile(yaffs_Object * in, int chunkInInode, - yaffs_ExtendedTags * tags) -{ - /*Get the Tnode, then get the level 0 offset chunk offset */ - yaffs_Tnode *tn; - int theChunk = -1; - yaffs_ExtendedTags localTags; - int retVal = -1; - - yaffs_Device *dev = in->myDev; - - if (!tags) { - /* Passed a NULL, so use our own tags space */ - tags = &localTags; - } - - tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); - - if (tn) { - theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); - - retVal = - yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, - chunkInInode); - } - return retVal; -} - -static int yaffs_FindAndDeleteChunkInFile(yaffs_Object * in, int chunkInInode, - yaffs_ExtendedTags * tags) -{ - /* Get the Tnode, then get the level 0 offset chunk offset */ - yaffs_Tnode *tn; - int theChunk = -1; - yaffs_ExtendedTags localTags; - - yaffs_Device *dev = in->myDev; - int retVal = -1; - - if (!tags) { - /* Passed a NULL, so use our own tags space */ - tags = &localTags; - } - - tn = yaffs_FindLevel0Tnode(dev, &in->variant.fileVariant, chunkInInode); - - if (tn) { - - theChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); - - retVal = - yaffs_FindChunkInGroup(dev, theChunk, tags, in->objectId, - chunkInInode); - - /* Delete the entry in the filestructure (if found) */ - if (retVal != -1) { - yaffs_PutLevel0Tnode(dev,tn,chunkInInode,0); - } - } else { - /*T(("No level 0 found for %d\n", chunkInInode)); */ - } - - if (retVal == -1) { - /* T(("Could not find %d to delete\n",chunkInInode)); */ - } - return retVal; -} - -#ifdef YAFFS_PARANOID - -static int yaffs_CheckFileSanity(yaffs_Object * in) -{ - int chunk; - int nChunks; - int fSize; - int failed = 0; - int objId; - yaffs_Tnode *tn; - yaffs_Tags localTags; - yaffs_Tags *tags = &localTags; - int theChunk; - int chunkDeleted; - - if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { - /* T(("Object not a file\n")); */ - return YAFFS_FAIL; - } - - objId = in->objectId; - fSize = in->variant.fileVariant.fileSize; - nChunks = - (fSize + in->myDev->nDataBytesPerChunk - 1) / in->myDev->nDataBytesPerChunk; - - for (chunk = 1; chunk <= nChunks; chunk++) { - tn = yaffs_FindLevel0Tnode(in->myDev, &in->variant.fileVariant, - chunk); - - if (tn) { - - theChunk = yaffs_GetChunkGroupBase(dev,tn,chunk); - - if (yaffs_CheckChunkBits - (dev, theChunk / dev->nChunksPerBlock, - theChunk % dev->nChunksPerBlock)) { - - yaffs_ReadChunkTagsFromNAND(in->myDev, theChunk, - tags, - &chunkDeleted); - if (yaffs_TagsMatch - (tags, in->objectId, chunk, chunkDeleted)) { - /* found it; */ - - } - } else { - - failed = 1; - } - - } else { - /* T(("No level 0 found for %d\n", chunk)); */ - } - } - - return failed ? YAFFS_FAIL : YAFFS_OK; -} - -#endif - -static int yaffs_PutChunkIntoFile(yaffs_Object * in, int chunkInInode, - int chunkInNAND, int inScan) -{ - /* NB inScan is zero unless scanning. - * For forward scanning, inScan is > 0; - * for backward scanning inScan is < 0 - */ - - yaffs_Tnode *tn; - yaffs_Device *dev = in->myDev; - int existingChunk; - yaffs_ExtendedTags existingTags; - yaffs_ExtendedTags newTags; - unsigned existingSerial, newSerial; - - if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { - /* Just ignore an attempt at putting a chunk into a non-file during scanning - * If it is not during Scanning then something went wrong! - */ - if (!inScan) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy:attempt to put data chunk into a non-file" - TENDSTR))); - YBUG(); - } - - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); - return YAFFS_OK; - } - - tn = yaffs_AddOrFindLevel0Tnode(dev, - &in->variant.fileVariant, - chunkInInode, - NULL); - if (!tn) { - return YAFFS_FAIL; - } - - existingChunk = yaffs_GetChunkGroupBase(dev,tn,chunkInInode); - - if (inScan != 0) { - /* If we're scanning then we need to test for duplicates - * NB This does not need to be efficient since it should only ever - * happen when the power fails during a write, then only one - * chunk should ever be affected. - * - * Correction for YAFFS2: This could happen quite a lot and we need to think about efficiency! TODO - * Update: For backward scanning we don't need to re-read tags so this is quite cheap. - */ - - if (existingChunk != 0) { - /* NB Right now existing chunk will not be real chunkId if the device >= 32MB - * thus we have to do a FindChunkInFile to get the real chunk id. - * - * We have a duplicate now we need to decide which one to use: - * - * Backwards scanning YAFFS2: The old one is what we use, dump the new one. - * Forward scanning YAFFS2: The new one is what we use, dump the old one. - * YAFFS1: Get both sets of tags and compare serial numbers. - */ - - if (inScan > 0) { - /* Only do this for forward scanning */ - yaffs_ReadChunkWithTagsFromNAND(dev, - chunkInNAND, - NULL, &newTags); - - /* Do a proper find */ - existingChunk = - yaffs_FindChunkInFile(in, chunkInInode, - &existingTags); - } - - if (existingChunk <= 0) { - /*Hoosterman - how did this happen? */ - - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: existing chunk < 0 in scan" - TENDSTR))); - - } - - /* NB The deleted flags should be false, otherwise the chunks will - * not be loaded during a scan - */ - - newSerial = newTags.serialNumber; - existingSerial = existingTags.serialNumber; - - if ((inScan > 0) && - (in->myDev->isYaffs2 || - existingChunk <= 0 || - ((existingSerial + 1) & 3) == newSerial)) { - /* Forward scanning. - * Use new - * Delete the old one and drop through to update the tnode - */ - yaffs_DeleteChunk(dev, existingChunk, 1, - __LINE__); - } else { - /* Backward scanning or we want to use the existing one - * Use existing. - * Delete the new one and return early so that the tnode isn't changed - */ - yaffs_DeleteChunk(dev, chunkInNAND, 1, - __LINE__); - return YAFFS_OK; - } - } - - } - - if (existingChunk == 0) { - in->nDataChunks++; - } - - yaffs_PutLevel0Tnode(dev,tn,chunkInInode,chunkInNAND); - - return YAFFS_OK; -} - -static int yaffs_ReadChunkDataFromObject(yaffs_Object * in, int chunkInInode, - __u8 * buffer) -{ - int chunkInNAND = yaffs_FindChunkInFile(in, chunkInInode, NULL); - - if (chunkInNAND >= 0) { - return yaffs_ReadChunkWithTagsFromNAND(in->myDev, chunkInNAND, - buffer,NULL); - } else { - T(YAFFS_TRACE_NANDACCESS, - (TSTR("Chunk %d not found zero instead" TENDSTR), - chunkInNAND)); - /* get sane (zero) data if you read a hole */ - memset(buffer, 0, in->myDev->nDataBytesPerChunk); - return 0; - } - -} - -void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn) -{ - int block; - int page; - yaffs_ExtendedTags tags; - yaffs_BlockInfo *bi; - - if (chunkId <= 0) - return; - - - dev->nDeletions++; - block = chunkId / dev->nChunksPerBlock; - page = chunkId % dev->nChunksPerBlock; - - - if(!yaffs_CheckChunkBit(dev,block,page)) - T(YAFFS_TRACE_VERIFY, - (TSTR("Deleting invalid chunk %d"TENDSTR), - chunkId)); - - bi = yaffs_GetBlockInfo(dev, block); - - T(YAFFS_TRACE_DELETION, - (TSTR("line %d delete of chunk %d" TENDSTR), lyn, chunkId)); - - if (markNAND && - bi->blockState != YAFFS_BLOCK_STATE_COLLECTING && !dev->isYaffs2) { - - yaffs_InitialiseTags(&tags); - - tags.chunkDeleted = 1; - - yaffs_WriteChunkWithTagsToNAND(dev, chunkId, NULL, &tags); - yaffs_HandleUpdateChunk(dev, chunkId, &tags); - } else { - dev->nUnmarkedDeletions++; - } - - /* Pull out of the management area. - * If the whole block became dirty, this will kick off an erasure. - */ - if (bi->blockState == YAFFS_BLOCK_STATE_ALLOCATING || - bi->blockState == YAFFS_BLOCK_STATE_FULL || - bi->blockState == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - bi->blockState == YAFFS_BLOCK_STATE_COLLECTING) { - dev->nFreeChunks++; - - yaffs_ClearChunkBit(dev, block, page); - - bi->pagesInUse--; - - if (bi->pagesInUse == 0 && - !bi->hasShrinkHeader && - bi->blockState != YAFFS_BLOCK_STATE_ALLOCATING && - bi->blockState != YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - yaffs_BlockBecameDirty(dev, block); - } - - } else { - /* T(("Bad news deleting chunk %d\n",chunkId)); */ - } - -} - -static int yaffs_WriteChunkDataToObject(yaffs_Object * in, int chunkInInode, - const __u8 * buffer, int nBytes, - int useReserve) -{ - /* Find old chunk Need to do this to get serial number - * Write new one and patch into tree. - * Invalidate old tags. - */ - - int prevChunkId; - yaffs_ExtendedTags prevTags; - - int newChunkId; - yaffs_ExtendedTags newTags; - - yaffs_Device *dev = in->myDev; - - yaffs_CheckGarbageCollection(dev); - - /* Get the previous chunk at this location in the file if it exists */ - prevChunkId = yaffs_FindChunkInFile(in, chunkInInode, &prevTags); - - /* Set up new tags */ - yaffs_InitialiseTags(&newTags); - - newTags.chunkId = chunkInInode; - newTags.objectId = in->objectId; - newTags.serialNumber = - (prevChunkId >= 0) ? prevTags.serialNumber + 1 : 1; - newTags.byteCount = nBytes; - - newChunkId = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, - useReserve); - - if (newChunkId >= 0) { - yaffs_PutChunkIntoFile(in, chunkInInode, newChunkId, 0); - - if (prevChunkId >= 0) { - yaffs_DeleteChunk(dev, prevChunkId, 1, __LINE__); - - } - - yaffs_CheckFileSanity(in); - } - return newChunkId; - -} - -/* UpdateObjectHeader updates the header on NAND for an object. - * If name is not NULL, then that new name is used. - */ -int yaffs_UpdateObjectHeader(yaffs_Object * in, const YCHAR * name, int force, - int isShrink, int shadows) -{ - - yaffs_BlockInfo *bi; - - yaffs_Device *dev = in->myDev; - - int prevChunkId; - int retVal = 0; - int result = 0; - - int newChunkId; - yaffs_ExtendedTags newTags; - yaffs_ExtendedTags oldTags; - - __u8 *buffer = NULL; - YCHAR oldName[YAFFS_MAX_NAME_LENGTH + 1]; - - yaffs_ObjectHeader *oh = NULL; - - yaffs_strcpy(oldName,"silly old name"); - - if (!in->fake || force) { - - yaffs_CheckGarbageCollection(dev); - yaffs_CheckObjectDetailsLoaded(in); - - buffer = yaffs_GetTempBuffer(in->myDev, __LINE__); - oh = (yaffs_ObjectHeader *) buffer; - - prevChunkId = in->chunkId; - - if (prevChunkId >= 0) { - result = yaffs_ReadChunkWithTagsFromNAND(dev, prevChunkId, - buffer, &oldTags); - - yaffs_VerifyObjectHeader(in,oh,&oldTags,0); - - memcpy(oldName, oh->name, sizeof(oh->name)); - } - - memset(buffer, 0xFF, dev->nDataBytesPerChunk); - - oh->type = in->variantType; - oh->yst_mode = in->yst_mode; - oh->shadowsObject = shadows; - -#ifdef CONFIG_YAFFS_WINCE - oh->win_atime[0] = in->win_atime[0]; - oh->win_ctime[0] = in->win_ctime[0]; - oh->win_mtime[0] = in->win_mtime[0]; - oh->win_atime[1] = in->win_atime[1]; - oh->win_ctime[1] = in->win_ctime[1]; - oh->win_mtime[1] = in->win_mtime[1]; -#else - oh->yst_uid = in->yst_uid; - oh->yst_gid = in->yst_gid; - oh->yst_atime = in->yst_atime; - oh->yst_mtime = in->yst_mtime; - oh->yst_ctime = in->yst_ctime; - oh->yst_rdev = in->yst_rdev; -#endif - if (in->parent) { - oh->parentObjectId = in->parent->objectId; - } else { - oh->parentObjectId = 0; - } - - if (name && *name) { - memset(oh->name, 0, sizeof(oh->name)); - yaffs_strncpy(oh->name, name, YAFFS_MAX_NAME_LENGTH); - } else if (prevChunkId>=0) { - memcpy(oh->name, oldName, sizeof(oh->name)); - } else { - memset(oh->name, 0, sizeof(oh->name)); - } - - oh->isShrink = isShrink; - - switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* Should not happen */ - break; - case YAFFS_OBJECT_TYPE_FILE: - oh->fileSize = - (oh->parentObjectId == YAFFS_OBJECTID_DELETED - || oh->parentObjectId == - YAFFS_OBJECTID_UNLINKED) ? 0 : in->variant. - fileVariant.fileSize; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - oh->equivalentObjectId = - in->variant.hardLinkVariant.equivalentObjectId; - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - yaffs_strncpy(oh->alias, - in->variant.symLinkVariant.alias, - YAFFS_MAX_ALIAS_LENGTH); - oh->alias[YAFFS_MAX_ALIAS_LENGTH] = 0; - break; - } - - /* Tags */ - yaffs_InitialiseTags(&newTags); - in->serial++; - newTags.chunkId = 0; - newTags.objectId = in->objectId; - newTags.serialNumber = in->serial; - - /* Add extra info for file header */ - - newTags.extraHeaderInfoAvailable = 1; - newTags.extraParentObjectId = oh->parentObjectId; - newTags.extraFileLength = oh->fileSize; - newTags.extraIsShrinkHeader = oh->isShrink; - newTags.extraEquivalentObjectId = oh->equivalentObjectId; - newTags.extraShadows = (oh->shadowsObject > 0) ? 1 : 0; - newTags.extraObjectType = in->variantType; - - yaffs_VerifyObjectHeader(in,oh,&newTags,1); - - /* Create new chunk in NAND */ - newChunkId = - yaffs_WriteNewChunkWithTagsToNAND(dev, buffer, &newTags, - (prevChunkId >= 0) ? 1 : 0); - - if (newChunkId >= 0) { - - in->chunkId = newChunkId; - - if (prevChunkId >= 0) { - yaffs_DeleteChunk(dev, prevChunkId, 1, - __LINE__); - } - - if(!yaffs_ObjectHasCachedWriteData(in)) - in->dirty = 0; - - /* If this was a shrink, then mark the block that the chunk lives on */ - if (isShrink) { - bi = yaffs_GetBlockInfo(in->myDev, - newChunkId /in->myDev-> nChunksPerBlock); - bi->hasShrinkHeader = 1; - } - - } - - retVal = newChunkId; - - } - - if (buffer) - yaffs_ReleaseTempBuffer(dev, buffer, __LINE__); - - return retVal; -} - -/*------------------------ Short Operations Cache ---------------------------------------- - * In many situations where there is no high level buffering (eg WinCE) a lot of - * reads might be short sequential reads, and a lot of writes may be short - * sequential writes. eg. scanning/writing a jpeg file. - * In these cases, a short read/write cache can provide a huge perfomance benefit - * with dumb-as-a-rock code. - * In Linux, the page cache provides read buffering aand the short op cache provides write - * buffering. - * - * There are a limited number (~10) of cache chunks per device so that we don't - * need a very intelligent search. - */ - -static int yaffs_ObjectHasCachedWriteData(yaffs_Object *obj) -{ - yaffs_Device *dev = obj->myDev; - int i; - yaffs_ChunkCache *cache; - int nCaches = obj->myDev->nShortOpCaches; - - for(i = 0; i < nCaches; i++){ - cache = &dev->srCache[i]; - if (cache->object == obj && - cache->dirty) - return 1; - } - - return 0; -} - - -static void yaffs_FlushFilesChunkCache(yaffs_Object * obj) -{ - yaffs_Device *dev = obj->myDev; - int lowest = -99; /* Stop compiler whining. */ - int i; - yaffs_ChunkCache *cache; - int chunkWritten = 0; - int nCaches = obj->myDev->nShortOpCaches; - - if (nCaches > 0) { - do { - cache = NULL; - - /* Find the dirty cache for this object with the lowest chunk id. */ - for (i = 0; i < nCaches; i++) { - if (dev->srCache[i].object == obj && - dev->srCache[i].dirty) { - if (!cache - || dev->srCache[i].chunkId < - lowest) { - cache = &dev->srCache[i]; - lowest = cache->chunkId; - } - } - } - - if (cache && !cache->locked) { - /* Write it out and free it up */ - - chunkWritten = - yaffs_WriteChunkDataToObject(cache->object, - cache->chunkId, - cache->data, - cache->nBytes, - 1); - cache->dirty = 0; - cache->object = NULL; - } - - } while (cache && chunkWritten > 0); - - if (cache) { - /* Hoosterman, disk full while writing cache out. */ - T(YAFFS_TRACE_ERROR, - (TSTR("yaffs tragedy: no space during cache write" TENDSTR))); - - } - } - -} - -/*yaffs_FlushEntireDeviceCache(dev) - * - * - */ - -void yaffs_FlushEntireDeviceCache(yaffs_Device *dev) -{ - yaffs_Object *obj; - int nCaches = dev->nShortOpCaches; - int i; - - /* Find a dirty object in the cache and flush it... - * until there are no further dirty objects. - */ - do { - obj = NULL; - for( i = 0; i < nCaches && !obj; i++) { - if (dev->srCache[i].object && - dev->srCache[i].dirty) - obj = dev->srCache[i].object; - - } - if(obj) - yaffs_FlushFilesChunkCache(obj); - - } while(obj); - -} - - -/* Grab us a cache chunk for use. - * First look for an empty one. - * Then look for the least recently used non-dirty one. - * Then look for the least recently used dirty one...., flush and look again. - */ -static yaffs_ChunkCache *yaffs_GrabChunkCacheWorker(yaffs_Device * dev) -{ - int i; - int usage; - int theOne; - - if (dev->nShortOpCaches > 0) { - for (i = 0; i < dev->nShortOpCaches; i++) { - if (!dev->srCache[i].object) - return &dev->srCache[i]; - } - - return NULL; - - theOne = -1; - usage = 0; /* just to stop the compiler grizzling */ - - for (i = 0; i < dev->nShortOpCaches; i++) { - if (!dev->srCache[i].dirty && - ((dev->srCache[i].lastUse < usage && theOne >= 0) || - theOne < 0)) { - usage = dev->srCache[i].lastUse; - theOne = i; - } - } - - - return theOne >= 0 ? &dev->srCache[theOne] : NULL; - } else { - return NULL; - } - -} - -static yaffs_ChunkCache *yaffs_GrabChunkCache(yaffs_Device * dev) -{ - yaffs_ChunkCache *cache; - yaffs_Object *theObj; - int usage; - int i; - int pushout; - - if (dev->nShortOpCaches > 0) { - /* Try find a non-dirty one... */ - - cache = yaffs_GrabChunkCacheWorker(dev); - - if (!cache) { - /* They were all dirty, find the last recently used object and flush - * its cache, then find again. - * NB what's here is not very accurate, we actually flush the object - * the last recently used page. - */ - - /* With locking we can't assume we can use entry zero */ - - theObj = NULL; - usage = -1; - cache = NULL; - pushout = -1; - - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object && - !dev->srCache[i].locked && - (dev->srCache[i].lastUse < usage || !cache)) - { - usage = dev->srCache[i].lastUse; - theObj = dev->srCache[i].object; - cache = &dev->srCache[i]; - pushout = i; - } - } - - if (!cache || cache->dirty) { - /* Flush and try again */ - yaffs_FlushFilesChunkCache(theObj); - cache = yaffs_GrabChunkCacheWorker(dev); - } - - } - return cache; - } else - return NULL; - -} - -/* Find a cached chunk */ -static yaffs_ChunkCache *yaffs_FindChunkCache(const yaffs_Object * obj, - int chunkId) -{ - yaffs_Device *dev = obj->myDev; - int i; - if (dev->nShortOpCaches > 0) { - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object == obj && - dev->srCache[i].chunkId == chunkId) { - dev->cacheHits++; - - return &dev->srCache[i]; - } - } - } - return NULL; -} - -/* Mark the chunk for the least recently used algorithym */ -static void yaffs_UseChunkCache(yaffs_Device * dev, yaffs_ChunkCache * cache, - int isAWrite) -{ - - if (dev->nShortOpCaches > 0) { - if (dev->srLastUse < 0 || dev->srLastUse > 100000000) { - /* Reset the cache usages */ - int i; - for (i = 1; i < dev->nShortOpCaches; i++) { - dev->srCache[i].lastUse = 0; - } - dev->srLastUse = 0; - } - - dev->srLastUse++; - - cache->lastUse = dev->srLastUse; - - if (isAWrite) { - cache->dirty = 1; - } - } -} - -/* Invalidate a single cache page. - * Do this when a whole page gets written, - * ie the short cache for this page is no longer valid. - */ -static void yaffs_InvalidateChunkCache(yaffs_Object * object, int chunkId) -{ - if (object->myDev->nShortOpCaches > 0) { - yaffs_ChunkCache *cache = yaffs_FindChunkCache(object, chunkId); - - if (cache) { - cache->object = NULL; - } - } -} - -/* Invalidate all the cache pages associated with this object - * Do this whenever ther file is deleted or resized. - */ -static void yaffs_InvalidateWholeChunkCache(yaffs_Object * in) -{ - int i; - yaffs_Device *dev = in->myDev; - - if (dev->nShortOpCaches > 0) { - /* Invalidate it. */ - for (i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].object == in) { - dev->srCache[i].object = NULL; - } - } - } -} - -/*--------------------- Checkpointing --------------------*/ - - -static int yaffs_WriteCheckpointValidityMarker(yaffs_Device *dev,int head) -{ - yaffs_CheckpointValidity cp; - - memset(&cp,0,sizeof(cp)); - - cp.structType = sizeof(cp); - cp.magic = YAFFS_MAGIC; - cp.version = YAFFS_CHECKPOINT_VERSION; - cp.head = (head) ? 1 : 0; - - return (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp))? - 1 : 0; -} - -static int yaffs_ReadCheckpointValidityMarker(yaffs_Device *dev, int head) -{ - yaffs_CheckpointValidity cp; - int ok; - - ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); - - if(ok) - ok = (cp.structType == sizeof(cp)) && - (cp.magic == YAFFS_MAGIC) && - (cp.version == YAFFS_CHECKPOINT_VERSION) && - (cp.head == ((head) ? 1 : 0)); - return ok ? 1 : 0; -} - -static void yaffs_DeviceToCheckpointDevice(yaffs_CheckpointDevice *cp, - yaffs_Device *dev) -{ - cp->nErasedBlocks = dev->nErasedBlocks; - cp->allocationBlock = dev->allocationBlock; - cp->allocationPage = dev->allocationPage; - cp->nFreeChunks = dev->nFreeChunks; - - cp->nDeletedFiles = dev->nDeletedFiles; - cp->nUnlinkedFiles = dev->nUnlinkedFiles; - cp->nBackgroundDeletions = dev->nBackgroundDeletions; - cp->sequenceNumber = dev->sequenceNumber; - cp->oldestDirtySequence = dev->oldestDirtySequence; - -} - -static void yaffs_CheckpointDeviceToDevice(yaffs_Device *dev, - yaffs_CheckpointDevice *cp) -{ - dev->nErasedBlocks = cp->nErasedBlocks; - dev->allocationBlock = cp->allocationBlock; - dev->allocationPage = cp->allocationPage; - dev->nFreeChunks = cp->nFreeChunks; - - dev->nDeletedFiles = cp->nDeletedFiles; - dev->nUnlinkedFiles = cp->nUnlinkedFiles; - dev->nBackgroundDeletions = cp->nBackgroundDeletions; - dev->sequenceNumber = cp->sequenceNumber; - dev->oldestDirtySequence = cp->oldestDirtySequence; -} - - -static int yaffs_WriteCheckpointDevice(yaffs_Device *dev) -{ - yaffs_CheckpointDevice cp; - __u32 nBytes; - __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); - - int ok; - - /* Write device runtime values*/ - yaffs_DeviceToCheckpointDevice(&cp,dev); - cp.structType = sizeof(cp); - - ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); - - /* Write block info */ - if(ok) { - nBytes = nBlocks * sizeof(yaffs_BlockInfo); - ok = (yaffs_CheckpointWrite(dev,dev->blockInfo,nBytes) == nBytes); - } - - /* Write chunk bits */ - if(ok) { - nBytes = nBlocks * dev->chunkBitmapStride; - ok = (yaffs_CheckpointWrite(dev,dev->chunkBits,nBytes) == nBytes); - } - return ok ? 1 : 0; - -} - -static int yaffs_ReadCheckpointDevice(yaffs_Device *dev) -{ - yaffs_CheckpointDevice cp; - __u32 nBytes; - __u32 nBlocks = (dev->internalEndBlock - dev->internalStartBlock + 1); - - int ok; - - ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); - if(!ok) - return 0; - - if(cp.structType != sizeof(cp)) - return 0; - - - yaffs_CheckpointDeviceToDevice(dev,&cp); - - nBytes = nBlocks * sizeof(yaffs_BlockInfo); - - ok = (yaffs_CheckpointRead(dev,dev->blockInfo,nBytes) == nBytes); - - if(!ok) - return 0; - nBytes = nBlocks * dev->chunkBitmapStride; - - ok = (yaffs_CheckpointRead(dev,dev->chunkBits,nBytes) == nBytes); - - return ok ? 1 : 0; -} - -static void yaffs_ObjectToCheckpointObject(yaffs_CheckpointObject *cp, - yaffs_Object *obj) -{ - - cp->objectId = obj->objectId; - cp->parentId = (obj->parent) ? obj->parent->objectId : 0; - cp->chunkId = obj->chunkId; - cp->variantType = obj->variantType; - cp->deleted = obj->deleted; - cp->softDeleted = obj->softDeleted; - cp->unlinked = obj->unlinked; - cp->fake = obj->fake; - cp->renameAllowed = obj->renameAllowed; - cp->unlinkAllowed = obj->unlinkAllowed; - cp->serial = obj->serial; - cp->nDataChunks = obj->nDataChunks; - - if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) - cp->fileSizeOrEquivalentObjectId = obj->variant.fileVariant.fileSize; - else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) - cp->fileSizeOrEquivalentObjectId = obj->variant.hardLinkVariant.equivalentObjectId; -} - -static void yaffs_CheckpointObjectToObject( yaffs_Object *obj,yaffs_CheckpointObject *cp) -{ - - yaffs_Object *parent; - - obj->objectId = cp->objectId; - - if(cp->parentId) - parent = yaffs_FindOrCreateObjectByNumber( - obj->myDev, - cp->parentId, - YAFFS_OBJECT_TYPE_DIRECTORY); - else - parent = NULL; - - if(parent) - yaffs_AddObjectToDirectory(parent, obj); - - obj->chunkId = cp->chunkId; - obj->variantType = cp->variantType; - obj->deleted = cp->deleted; - obj->softDeleted = cp->softDeleted; - obj->unlinked = cp->unlinked; - obj->fake = cp->fake; - obj->renameAllowed = cp->renameAllowed; - obj->unlinkAllowed = cp->unlinkAllowed; - obj->serial = cp->serial; - obj->nDataChunks = cp->nDataChunks; - - if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) - obj->variant.fileVariant.fileSize = cp->fileSizeOrEquivalentObjectId; - else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) - obj->variant.hardLinkVariant.equivalentObjectId = cp->fileSizeOrEquivalentObjectId; - - if(obj->objectId >= YAFFS_NOBJECT_BUCKETS) - obj->lazyLoaded = 1; -} - - - -static int yaffs_CheckpointTnodeWorker(yaffs_Object * in, yaffs_Tnode * tn, - __u32 level, int chunkOffset) -{ - int i; - yaffs_Device *dev = in->myDev; - int ok = 1; - int nTnodeBytes = (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8; - - if (tn) { - if (level > 0) { - - for (i = 0; i < YAFFS_NTNODES_INTERNAL && ok; i++){ - if (tn->internal[i]) { - ok = yaffs_CheckpointTnodeWorker(in, - tn->internal[i], - level - 1, - (chunkOffset<<YAFFS_TNODES_INTERNAL_BITS) + i); - } - } - } else if (level == 0) { - __u32 baseOffset = chunkOffset << YAFFS_TNODES_LEVEL0_BITS; - /* printf("write tnode at %d\n",baseOffset); */ - ok = (yaffs_CheckpointWrite(dev,&baseOffset,sizeof(baseOffset)) == sizeof(baseOffset)); - if(ok) - ok = (yaffs_CheckpointWrite(dev,tn,nTnodeBytes) == nTnodeBytes); - } - } - - return ok; - -} - -static int yaffs_WriteCheckpointTnodes(yaffs_Object *obj) -{ - __u32 endMarker = ~0; - int ok = 1; - - if(obj->variantType == YAFFS_OBJECT_TYPE_FILE){ - ok = yaffs_CheckpointTnodeWorker(obj, - obj->variant.fileVariant.top, - obj->variant.fileVariant.topLevel, - 0); - if(ok) - ok = (yaffs_CheckpointWrite(obj->myDev,&endMarker,sizeof(endMarker)) == - sizeof(endMarker)); - } - - return ok ? 1 : 0; -} - -static int yaffs_ReadCheckpointTnodes(yaffs_Object *obj) -{ - __u32 baseChunk; - int ok = 1; - yaffs_Device *dev = obj->myDev; - yaffs_FileStructure *fileStructPtr = &obj->variant.fileVariant; - yaffs_Tnode *tn; - int nread = 0; - - ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); - - while(ok && (~baseChunk)){ - nread++; - /* Read level 0 tnode */ - - - /* printf("read tnode at %d\n",baseChunk); */ - tn = yaffs_GetTnodeRaw(dev); - if(tn) - ok = (yaffs_CheckpointRead(dev,tn,(dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8) == - (dev->tnodeWidth * YAFFS_NTNODES_LEVEL0)/8); - else - ok = 0; - - if(tn && ok){ - ok = yaffs_AddOrFindLevel0Tnode(dev, - fileStructPtr, - baseChunk, - tn) ? 1 : 0; - - } - - if(ok) - ok = (yaffs_CheckpointRead(dev,&baseChunk,sizeof(baseChunk)) == sizeof(baseChunk)); - - } - - T(YAFFS_TRACE_CHECKPOINT,( - TSTR("Checkpoint read tnodes %d records, last %d. ok %d" TENDSTR), - nread,baseChunk,ok)); - - return ok ? 1 : 0; -} - - -static int yaffs_WriteCheckpointObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - yaffs_CheckpointObject cp; - int i; - int ok = 1; - struct list_head *lh; - - - /* Iterate through the objects in each hash entry, - * dumping them to the checkpointing stream. - */ - - for(i = 0; ok && i < YAFFS_NOBJECT_BUCKETS; i++){ - list_for_each(lh, &dev->objectBucket[i].list) { - if (lh) { - obj = list_entry(lh, yaffs_Object, hashLink); - if (!obj->deferedFree) { - yaffs_ObjectToCheckpointObject(&cp,obj); - cp.structType = sizeof(cp); - - T(YAFFS_TRACE_CHECKPOINT,( - TSTR("Checkpoint write object %d parent %d type %d chunk %d obj addr %x" TENDSTR), - cp.objectId,cp.parentId,cp.variantType,cp.chunkId,(unsigned) obj)); - - ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); - - if(ok && obj->variantType == YAFFS_OBJECT_TYPE_FILE){ - ok = yaffs_WriteCheckpointTnodes(obj); - } - } - } - } - } - - /* Dump end of list */ - memset(&cp,0xFF,sizeof(yaffs_CheckpointObject)); - cp.structType = sizeof(cp); - - if(ok) - ok = (yaffs_CheckpointWrite(dev,&cp,sizeof(cp)) == sizeof(cp)); - - return ok ? 1 : 0; -} - -static int yaffs_ReadCheckpointObjects(yaffs_Device *dev) -{ - yaffs_Object *obj; - yaffs_CheckpointObject cp; - int ok = 1; - int done = 0; - yaffs_Object *hardList = NULL; - - while(ok && !done) { - ok = (yaffs_CheckpointRead(dev,&cp,sizeof(cp)) == sizeof(cp)); - if(cp.structType != sizeof(cp)) { - T(YAFFS_TRACE_CHECKPOINT,(TSTR("struct size %d instead of %d ok %d"TENDSTR), - cp.structType,sizeof(cp),ok)); - ok = 0; - } - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("Checkpoint read object %d parent %d type %d chunk %d " TENDSTR), - cp.objectId,cp.parentId,cp.variantType,cp.chunkId)); - - if(ok && cp.objectId == ~0) - done = 1; - else if(ok){ - obj = yaffs_FindOrCreateObjectByNumber(dev,cp.objectId, cp.variantType); - if(obj) { - yaffs_CheckpointObjectToObject(obj,&cp); - if(obj->variantType == YAFFS_OBJECT_TYPE_FILE) { - ok = yaffs_ReadCheckpointTnodes(obj); - } else if(obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - obj->hardLinks.next = - (struct list_head *) - hardList; - hardList = obj; - } - - } - } - } - - if(ok) - yaffs_HardlinkFixup(dev,hardList); - - return ok ? 1 : 0; -} - -static int yaffs_WriteCheckpointSum(yaffs_Device *dev) -{ - __u32 checkpointSum; - int ok; - - yaffs_GetCheckpointSum(dev,&checkpointSum); - - ok = (yaffs_CheckpointWrite(dev,&checkpointSum,sizeof(checkpointSum)) == sizeof(checkpointSum)); - - if(!ok) - return 0; - - return 1; -} - -static int yaffs_ReadCheckpointSum(yaffs_Device *dev) -{ - __u32 checkpointSum0; - __u32 checkpointSum1; - int ok; - - yaffs_GetCheckpointSum(dev,&checkpointSum0); - - ok = (yaffs_CheckpointRead(dev,&checkpointSum1,sizeof(checkpointSum1)) == sizeof(checkpointSum1)); - - if(!ok) - return 0; - - if(checkpointSum0 != checkpointSum1) - return 0; - - return 1; -} - - -static int yaffs_WriteCheckpointData(yaffs_Device *dev) -{ - - int ok = 1; - - if(dev->skipCheckpointWrite || !dev->isYaffs2){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint write" TENDSTR))); - ok = 0; - } - - if(ok) - ok = yaffs_CheckpointOpen(dev,1); - - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); - ok = yaffs_WriteCheckpointValidityMarker(dev,1); - } - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint device" TENDSTR))); - ok = yaffs_WriteCheckpointDevice(dev); - } - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint objects" TENDSTR))); - ok = yaffs_WriteCheckpointObjects(dev); - } - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("write checkpoint validity" TENDSTR))); - ok = yaffs_WriteCheckpointValidityMarker(dev,0); - } - - if(ok){ - ok = yaffs_WriteCheckpointSum(dev); - } - - - if(!yaffs_CheckpointClose(dev)) - ok = 0; - - if(ok) - dev->isCheckpointed = 1; - else - dev->isCheckpointed = 0; - - return dev->isCheckpointed; -} - -static int yaffs_ReadCheckpointData(yaffs_Device *dev) -{ - int ok = 1; - - if(dev->skipCheckpointRead || !dev->isYaffs2){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("skipping checkpoint read" TENDSTR))); - ok = 0; - } - - if(ok) - ok = yaffs_CheckpointOpen(dev,0); /* open for read */ - - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); - ok = yaffs_ReadCheckpointValidityMarker(dev,1); - } - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint device" TENDSTR))); - ok = yaffs_ReadCheckpointDevice(dev); - } - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint objects" TENDSTR))); - ok = yaffs_ReadCheckpointObjects(dev); - } - if(ok){ - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint validity" TENDSTR))); - ok = yaffs_ReadCheckpointValidityMarker(dev,0); - } - - if(ok){ - ok = yaffs_ReadCheckpointSum(dev); - T(YAFFS_TRACE_CHECKPOINT,(TSTR("read checkpoint checksum %d" TENDSTR),ok)); - } - - if(!yaffs_CheckpointClose(dev)) - ok = 0; - - if(ok) - dev->isCheckpointed = 1; - else - dev->isCheckpointed = 0; - - return ok ? 1 : 0; - -} - -static void yaffs_InvalidateCheckpoint(yaffs_Device *dev) -{ - if(dev->isCheckpointed || - dev->blocksInCheckpoint > 0){ - dev->isCheckpointed = 0; - yaffs_CheckpointInvalidateStream(dev); - if(dev->superBlock && dev->markSuperBlockDirty) - dev->markSuperBlockDirty(dev->superBlock); - } -} - - -int yaffs_CheckpointSave(yaffs_Device *dev) -{ - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("save entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); - - yaffs_VerifyObjects(dev); - yaffs_VerifyBlocks(dev); - yaffs_VerifyFreeChunks(dev); - - if(!dev->isCheckpointed) { - yaffs_InvalidateCheckpoint(dev); - yaffs_WriteCheckpointData(dev); - } - - T(YAFFS_TRACE_ALWAYS,(TSTR("save exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); - - return dev->isCheckpointed; -} - -int yaffs_CheckpointRestore(yaffs_Device *dev) -{ - int retval; - T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore entry: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); - - retval = yaffs_ReadCheckpointData(dev); - - if(dev->isCheckpointed){ - yaffs_VerifyObjects(dev); - yaffs_VerifyBlocks(dev); - yaffs_VerifyFreeChunks(dev); - } - - T(YAFFS_TRACE_CHECKPOINT,(TSTR("restore exit: isCheckpointed %d"TENDSTR),dev->isCheckpointed)); - - return retval; -} - -/*--------------------- File read/write ------------------------ - * Read and write have very similar structures. - * In general the read/write has three parts to it - * An incomplete chunk to start with (if the read/write is not chunk-aligned) - * Some complete chunks - * An incomplete chunk to end off with - * - * Curve-balls: the first chunk might also be the last chunk. - */ - -int yaffs_ReadDataFromFile(yaffs_Object * in, __u8 * buffer, loff_t offset, - int nBytes) -{ - - int chunk; - int start; - int nToCopy; - int n = nBytes; - int nDone = 0; - yaffs_ChunkCache *cache; - - yaffs_Device *dev; - - dev = in->myDev; - - while (n > 0) { - //chunk = offset / dev->nDataBytesPerChunk + 1; - //start = offset % dev->nDataBytesPerChunk; - yaffs_AddrToChunk(dev,offset,&chunk,&start); - chunk++; - - /* OK now check for the curveball where the start and end are in - * the same chunk. - */ - if ((start + n) < dev->nDataBytesPerChunk) { - nToCopy = n; - } else { - nToCopy = dev->nDataBytesPerChunk - start; - } - - cache = yaffs_FindChunkCache(in, chunk); - - /* If the chunk is already in the cache or it is less than a whole chunk - * then use the cache (if there is caching) - * else bypass the cache. - */ - if (cache || nToCopy != dev->nDataBytesPerChunk) { - if (dev->nShortOpCaches > 0) { - - /* If we can't find the data in the cache, then load it up. */ - - if (!cache) { - cache = yaffs_GrabChunkCache(in->myDev); - cache->object = in; - cache->chunkId = chunk; - cache->dirty = 0; - cache->locked = 0; - yaffs_ReadChunkDataFromObject(in, chunk, - cache-> - data); - cache->nBytes = 0; - } - - yaffs_UseChunkCache(dev, cache, 0); - - cache->locked = 1; - -#ifdef CONFIG_YAFFS_WINCE - yfsd_UnlockYAFFS(TRUE); -#endif - memcpy(buffer, &cache->data[start], nToCopy); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_LockYAFFS(TRUE); -#endif - cache->locked = 0; - } else { - /* Read into the local buffer then copy..*/ - - __u8 *localBuffer = - yaffs_GetTempBuffer(dev, __LINE__); - yaffs_ReadChunkDataFromObject(in, chunk, - localBuffer); -#ifdef CONFIG_YAFFS_WINCE - yfsd_UnlockYAFFS(TRUE); -#endif - memcpy(buffer, &localBuffer[start], nToCopy); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_LockYAFFS(TRUE); -#endif - yaffs_ReleaseTempBuffer(dev, localBuffer, - __LINE__); - } - - } else { -#ifdef CONFIG_YAFFS_WINCE - __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); - - /* Under WinCE can't do direct transfer. Need to use a local buffer. - * This is because we otherwise screw up WinCE's memory mapper - */ - yaffs_ReadChunkDataFromObject(in, chunk, localBuffer); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_UnlockYAFFS(TRUE); -#endif - memcpy(buffer, localBuffer, dev->nDataBytesPerChunk); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_LockYAFFS(TRUE); - yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); -#endif - -#else - /* A full chunk. Read directly into the supplied buffer. */ - yaffs_ReadChunkDataFromObject(in, chunk, buffer); -#endif - } - - n -= nToCopy; - offset += nToCopy; - buffer += nToCopy; - nDone += nToCopy; - - } - - return nDone; -} - -int yaffs_WriteDataToFile(yaffs_Object * in, const __u8 * buffer, loff_t offset, - int nBytes, int writeThrough) -{ - - int chunk; - int start; - int nToCopy; - int n = nBytes; - int nDone = 0; - int nToWriteBack; - int startOfWrite = offset; - int chunkWritten = 0; - int nBytesRead; - - yaffs_Device *dev; - - dev = in->myDev; - - while (n > 0 && chunkWritten >= 0) { - //chunk = offset / dev->nDataBytesPerChunk + 1; - //start = offset % dev->nDataBytesPerChunk; - yaffs_AddrToChunk(dev,offset,&chunk,&start); - chunk++; - - /* OK now check for the curveball where the start and end are in - * the same chunk. - */ - - if ((start + n) < dev->nDataBytesPerChunk) { - nToCopy = n; - - /* Now folks, to calculate how many bytes to write back.... - * If we're overwriting and not writing to then end of file then - * we need to write back as much as was there before. - */ - - nBytesRead = - in->variant.fileVariant.fileSize - - ((chunk - 1) * dev->nDataBytesPerChunk); - - if (nBytesRead > dev->nDataBytesPerChunk) { - nBytesRead = dev->nDataBytesPerChunk; - } - - nToWriteBack = - (nBytesRead > - (start + n)) ? nBytesRead : (start + n); - - } else { - nToCopy = dev->nDataBytesPerChunk - start; - nToWriteBack = dev->nDataBytesPerChunk; - } - - if (nToCopy != dev->nDataBytesPerChunk) { - /* An incomplete start or end chunk (or maybe both start and end chunk) */ - if (dev->nShortOpCaches > 0) { - yaffs_ChunkCache *cache; - /* If we can't find the data in the cache, then load the cache */ - cache = yaffs_FindChunkCache(in, chunk); - - if (!cache - && yaffs_CheckSpaceForAllocation(in-> - myDev)) { - cache = yaffs_GrabChunkCache(in->myDev); - cache->object = in; - cache->chunkId = chunk; - cache->dirty = 0; - cache->locked = 0; - yaffs_ReadChunkDataFromObject(in, chunk, - cache-> - data); - } - else if(cache && - !cache->dirty && - !yaffs_CheckSpaceForAllocation(in->myDev)){ - /* Drop the cache if it was a read cache item and - * no space check has been made for it. - */ - cache = NULL; - } - - if (cache) { - yaffs_UseChunkCache(dev, cache, 1); - cache->locked = 1; -#ifdef CONFIG_YAFFS_WINCE - yfsd_UnlockYAFFS(TRUE); -#endif - - memcpy(&cache->data[start], buffer, - nToCopy); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_LockYAFFS(TRUE); -#endif - cache->locked = 0; - cache->nBytes = nToWriteBack; - - if (writeThrough) { - chunkWritten = - yaffs_WriteChunkDataToObject - (cache->object, - cache->chunkId, - cache->data, cache->nBytes, - 1); - cache->dirty = 0; - } - - } else { - chunkWritten = -1; /* fail the write */ - } - } else { - /* An incomplete start or end chunk (or maybe both start and end chunk) - * Read into the local buffer then copy, then copy over and write back. - */ - - __u8 *localBuffer = - yaffs_GetTempBuffer(dev, __LINE__); - - yaffs_ReadChunkDataFromObject(in, chunk, - localBuffer); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_UnlockYAFFS(TRUE); -#endif - - memcpy(&localBuffer[start], buffer, nToCopy); - -#ifdef CONFIG_YAFFS_WINCE - yfsd_LockYAFFS(TRUE); -#endif - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, - localBuffer, - nToWriteBack, - 0); - - yaffs_ReleaseTempBuffer(dev, localBuffer, - __LINE__); - - } - - } else { - -#ifdef CONFIG_YAFFS_WINCE - /* Under WinCE can't do direct transfer. Need to use a local buffer. - * This is because we otherwise screw up WinCE's memory mapper - */ - __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); -#ifdef CONFIG_YAFFS_WINCE - yfsd_UnlockYAFFS(TRUE); -#endif - memcpy(localBuffer, buffer, dev->nDataBytesPerChunk); -#ifdef CONFIG_YAFFS_WINCE - yfsd_LockYAFFS(TRUE); -#endif - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, localBuffer, - dev->nDataBytesPerChunk, - 0); - yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); -#else - /* A full chunk. Write directly from the supplied buffer. */ - chunkWritten = - yaffs_WriteChunkDataToObject(in, chunk, buffer, - dev->nDataBytesPerChunk, - 0); -#endif - /* Since we've overwritten the cached data, we better invalidate it. */ - yaffs_InvalidateChunkCache(in, chunk); - } - - if (chunkWritten >= 0) { - n -= nToCopy; - offset += nToCopy; - buffer += nToCopy; - nDone += nToCopy; - } - - } - - /* Update file object */ - - if ((startOfWrite + nDone) > in->variant.fileVariant.fileSize) { - in->variant.fileVariant.fileSize = (startOfWrite + nDone); - } - - in->dirty = 1; - - return nDone; -} - - -/* ---------------------- File resizing stuff ------------------ */ - -static void yaffs_PruneResizedChunks(yaffs_Object * in, int newSize) -{ - - yaffs_Device *dev = in->myDev; - int oldFileSize = in->variant.fileVariant.fileSize; - - int lastDel = 1 + (oldFileSize - 1) / dev->nDataBytesPerChunk; - - int startDel = 1 + (newSize + dev->nDataBytesPerChunk - 1) / - dev->nDataBytesPerChunk; - int i; - int chunkId; - - /* Delete backwards so that we don't end up with holes if - * power is lost part-way through the operation. - */ - for (i = lastDel; i >= startDel; i--) { - /* NB this could be optimised somewhat, - * eg. could retrieve the tags and write them without - * using yaffs_DeleteChunk - */ - - chunkId = yaffs_FindAndDeleteChunkInFile(in, i, NULL); - if (chunkId > 0) { - if (chunkId < - (dev->internalStartBlock * dev->nChunksPerBlock) - || chunkId >= - ((dev->internalEndBlock + - 1) * dev->nChunksPerBlock)) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("Found daft chunkId %d for %d" TENDSTR), - chunkId, i)); - } else { - in->nDataChunks--; - yaffs_DeleteChunk(dev, chunkId, 1, __LINE__); - } - } - } - -} - -int yaffs_ResizeFile(yaffs_Object * in, loff_t newSize) -{ - - int oldFileSize = in->variant.fileVariant.fileSize; - int newSizeOfPartialChunk; - int newFullChunks; - - yaffs_Device *dev = in->myDev; - - yaffs_AddrToChunk(dev, newSize, &newFullChunks, &newSizeOfPartialChunk); - - yaffs_FlushFilesChunkCache(in); - yaffs_InvalidateWholeChunkCache(in); - - yaffs_CheckGarbageCollection(dev); - - if (in->variantType != YAFFS_OBJECT_TYPE_FILE) { - return yaffs_GetFileSize(in); - } - - if (newSize == oldFileSize) { - return oldFileSize; - } - - if (newSize < oldFileSize) { - - yaffs_PruneResizedChunks(in, newSize); - - if (newSizeOfPartialChunk != 0) { - int lastChunk = 1 + newFullChunks; - - __u8 *localBuffer = yaffs_GetTempBuffer(dev, __LINE__); - - /* Got to read and rewrite the last chunk with its new size and zero pad */ - yaffs_ReadChunkDataFromObject(in, lastChunk, - localBuffer); - - memset(localBuffer + newSizeOfPartialChunk, 0, - dev->nDataBytesPerChunk - newSizeOfPartialChunk); - - yaffs_WriteChunkDataToObject(in, lastChunk, localBuffer, - newSizeOfPartialChunk, 1); - - yaffs_ReleaseTempBuffer(dev, localBuffer, __LINE__); - } - - in->variant.fileVariant.fileSize = newSize; - - yaffs_PruneFileStructure(dev, &in->variant.fileVariant); - } else { - /* newsSize > oldFileSize */ - in->variant.fileVariant.fileSize = newSize; - } - - - - /* Write a new object header. - * show we've shrunk the file, if need be - * Do this only if the file is not in the deleted directories. - */ - if (in->parent->objectId != YAFFS_OBJECTID_UNLINKED && - in->parent->objectId != YAFFS_OBJECTID_DELETED) { - yaffs_UpdateObjectHeader(in, NULL, 0, - (newSize < oldFileSize) ? 1 : 0, 0); - } - - return newSize; -} - -loff_t yaffs_GetFileSize(yaffs_Object * obj) -{ - obj = yaffs_GetEquivalentObject(obj); - - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - return obj->variant.fileVariant.fileSize; - case YAFFS_OBJECT_TYPE_SYMLINK: - return yaffs_strlen(obj->variant.symLinkVariant.alias); - default: - return 0; - } -} - - - -int yaffs_FlushFile(yaffs_Object * in, int updateTime) -{ - int retVal; - if (in->dirty) { - yaffs_FlushFilesChunkCache(in); - if (updateTime) { -#ifdef CONFIG_YAFFS_WINCE - yfsd_WinFileTimeNow(in->win_mtime); -#else - - in->yst_mtime = Y_CURRENT_TIME; - -#endif - } - - retVal = - (yaffs_UpdateObjectHeader(in, NULL, 0, 0, 0) >= - 0) ? YAFFS_OK : YAFFS_FAIL; - } else { - retVal = YAFFS_OK; - } - - return retVal; - -} - -static int yaffs_DoGenericObjectDeletion(yaffs_Object * in) -{ - - /* First off, invalidate the file's data in the cache, without flushing. */ - yaffs_InvalidateWholeChunkCache(in); - - if (in->myDev->isYaffs2 && (in->parent != in->myDev->deletedDir)) { - /* Move to the unlinked directory so we have a record that it was deleted. */ - yaffs_ChangeObjectName(in, in->myDev->deletedDir,"deleted", 0, 0); - - } - - yaffs_RemoveObjectFromDirectory(in); - yaffs_DeleteChunk(in->myDev, in->chunkId, 1, __LINE__); - in->chunkId = -1; - - yaffs_FreeObject(in); - return YAFFS_OK; - -} - -/* yaffs_DeleteFile deletes the whole file data - * and the inode associated with the file. - * It does not delete the links associated with the file. - */ -static int yaffs_UnlinkFile(yaffs_Object * in) -{ - - int retVal; - int immediateDeletion = 0; - - if (1) { -#ifdef __KERNEL__ - if (!in->myInode) { - immediateDeletion = 1; - - } -#else - if (in->inUse <= 0) { - immediateDeletion = 1; - - } -#endif - if (immediateDeletion) { - retVal = - yaffs_ChangeObjectName(in, in->myDev->deletedDir, - "deleted", 0, 0); - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: immediate deletion of file %d" TENDSTR), - in->objectId)); - in->deleted = 1; - in->myDev->nDeletedFiles++; - if (0 && in->myDev->isYaffs2) { - yaffs_ResizeFile(in, 0); - } - yaffs_SoftDeleteFile(in); - } else { - retVal = - yaffs_ChangeObjectName(in, in->myDev->unlinkedDir, - "unlinked", 0, 0); - } - - } - return retVal; -} - -int yaffs_DeleteFile(yaffs_Object * in) -{ - int retVal = YAFFS_OK; - - if (in->nDataChunks > 0) { - /* Use soft deletion if there is data in the file */ - if (!in->unlinked) { - retVal = yaffs_UnlinkFile(in); - } - if (retVal == YAFFS_OK && in->unlinked && !in->deleted) { - in->deleted = 1; - in->myDev->nDeletedFiles++; - yaffs_SoftDeleteFile(in); - } - return in->deleted ? YAFFS_OK : YAFFS_FAIL; - } else { - /* The file has no data chunks so we toss it immediately */ - yaffs_FreeTnode(in->myDev, in->variant.fileVariant.top); - in->variant.fileVariant.top = NULL; - yaffs_DoGenericObjectDeletion(in); - - return YAFFS_OK; - } -} - -static int yaffs_DeleteDirectory(yaffs_Object * in) -{ - /* First check that the directory is empty. */ - if (list_empty(&in->variant.directoryVariant.children)) { - return yaffs_DoGenericObjectDeletion(in); - } - - return YAFFS_FAIL; - -} - -static int yaffs_DeleteSymLink(yaffs_Object * in) -{ - YFREE(in->variant.symLinkVariant.alias); - - return yaffs_DoGenericObjectDeletion(in); -} - -static int yaffs_DeleteHardLink(yaffs_Object * in) -{ - /* remove this hardlink from the list assocaited with the equivalent - * object - */ - list_del(&in->hardLinks); - return yaffs_DoGenericObjectDeletion(in); -} - -static void yaffs_DestroyObject(yaffs_Object * obj) -{ - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - yaffs_DeleteFile(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - yaffs_DeleteDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - yaffs_DeleteSymLink(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - yaffs_DeleteHardLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - yaffs_DoGenericObjectDeletion(obj); - break; - case YAFFS_OBJECT_TYPE_UNKNOWN: - break; /* should not happen. */ - } -} - -static int yaffs_UnlinkWorker(yaffs_Object * obj) -{ - - if (obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - return yaffs_DeleteHardLink(obj); - } else if (!list_empty(&obj->hardLinks)) { - /* Curve ball: We're unlinking an object that has a hardlink. - * - * This problem arises because we are not strictly following - * The Linux link/inode model. - * - * We can't really delete the object. - * Instead, we do the following: - * - Select a hardlink. - * - Unhook it from the hard links - * - Unhook it from its parent directory (so that the rename can work) - * - Rename the object to the hardlink's name. - * - Delete the hardlink - */ - - yaffs_Object *hl; - int retVal; - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - - hl = list_entry(obj->hardLinks.next, yaffs_Object, hardLinks); - - list_del_init(&hl->hardLinks); - list_del_init(&hl->siblings); - - yaffs_GetObjectName(hl, name, YAFFS_MAX_NAME_LENGTH + 1); - - retVal = yaffs_ChangeObjectName(obj, hl->parent, name, 0, 0); - - if (retVal == YAFFS_OK) { - retVal = yaffs_DoGenericObjectDeletion(hl); - } - return retVal; - - } else { - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - return yaffs_UnlinkFile(obj); - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - return yaffs_DeleteDirectory(obj); - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - return yaffs_DeleteSymLink(obj); - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - return yaffs_DoGenericObjectDeletion(obj); - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - case YAFFS_OBJECT_TYPE_UNKNOWN: - default: - return YAFFS_FAIL; - } - } -} - - -static int yaffs_UnlinkObject( yaffs_Object *obj) -{ - - if (obj && obj->unlinkAllowed) { - return yaffs_UnlinkWorker(obj); - } - - return YAFFS_FAIL; - -} -int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name) -{ - yaffs_Object *obj; - - obj = yaffs_FindObjectByName(dir, name); - return yaffs_UnlinkObject(obj); -} - -/*----------------------- Initialisation Scanning ---------------------- */ - -static void yaffs_HandleShadowedObject(yaffs_Device * dev, int objId, - int backwardScanning) -{ - yaffs_Object *obj; - - if (!backwardScanning) { - /* Handle YAFFS1 forward scanning case - * For YAFFS1 we always do the deletion - */ - - } else { - /* Handle YAFFS2 case (backward scanning) - * If the shadowed object exists then ignore. - */ - if (yaffs_FindObjectByNumber(dev, objId)) { - return; - } - } - - /* Let's create it (if it does not exist) assuming it is a file so that it can do shrinking etc. - * We put it in unlinked dir to be cleaned up after the scanning - */ - obj = - yaffs_FindOrCreateObjectByNumber(dev, objId, - YAFFS_OBJECT_TYPE_FILE); - yaffs_AddObjectToDirectory(dev->unlinkedDir, obj); - obj->variant.fileVariant.shrinkSize = 0; - obj->valid = 1; /* So that we don't read any other info for this file */ - -} - -typedef struct { - int seq; - int block; -} yaffs_BlockIndex; - - -static void yaffs_HardlinkFixup(yaffs_Device *dev, yaffs_Object *hardList) -{ - yaffs_Object *hl; - yaffs_Object *in; - - while (hardList) { - hl = hardList; - hardList = (yaffs_Object *) (hardList->hardLinks.next); - - in = yaffs_FindObjectByNumber(dev, - hl->variant.hardLinkVariant. - equivalentObjectId); - - if (in) { - /* Add the hardlink pointers */ - hl->variant.hardLinkVariant.equivalentObject = in; - list_add(&hl->hardLinks, &in->hardLinks); - } else { - /* Todo Need to report/handle this better. - * Got a problem... hardlink to a non-existant object - */ - hl->variant.hardLinkVariant.equivalentObject = NULL; - INIT_LIST_HEAD(&hl->hardLinks); - - } - - } - -} - - - - - -static int ybicmp(const void *a, const void *b){ - register int aseq = ((yaffs_BlockIndex *)a)->seq; - register int bseq = ((yaffs_BlockIndex *)b)->seq; - register int ablock = ((yaffs_BlockIndex *)a)->block; - register int bblock = ((yaffs_BlockIndex *)b)->block; - if( aseq == bseq ) - return ablock - bblock; - else - return aseq - bseq; - -} - -static int yaffs_Scan(yaffs_Device * dev) -{ - yaffs_ExtendedTags tags; - int blk; - int blockIterator; - int startIterator; - int endIterator; - int nBlocksToScan = 0; - int result; - - int chunk; - int c; - int deleted; - yaffs_BlockState state; - yaffs_Object *hardList = NULL; - yaffs_BlockInfo *bi; - int sequenceNumber; - yaffs_ObjectHeader *oh; - yaffs_Object *in; - yaffs_Object *parent; - int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - - int alloc_failed = 0; - - - __u8 *chunkData; - - yaffs_BlockIndex *blockIndex = NULL; - - if (dev->isYaffs2) { - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan is not for YAFFS2!" TENDSTR))); - return YAFFS_FAIL; - } - - //TODO Throw all the yaffs2 stuuf out of yaffs_Scan since it is only for yaffs1 format. - - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan starts intstartblk %d intendblk %d..." TENDSTR), - dev->internalStartBlock, dev->internalEndBlock)); - - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - - dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - - if (dev->isYaffs2) { - blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); - if(!blockIndex) - return YAFFS_FAIL; - } - - /* Scan all the blocks to determine their state */ - for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { - bi = yaffs_GetBlockInfo(dev, blk); - yaffs_ClearChunkBits(dev, blk); - bi->pagesInUse = 0; - bi->softDeletions = 0; - - yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); - - bi->blockState = state; - bi->sequenceNumber = sequenceNumber; - - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, - state, sequenceNumber)); - - if (state == YAFFS_BLOCK_STATE_DEAD) { - T(YAFFS_TRACE_BAD_BLOCKS, - (TSTR("block %d is bad" TENDSTR), blk)); - } else if (state == YAFFS_BLOCK_STATE_EMPTY) { - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block empty " TENDSTR))); - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - - /* Determine the highest sequence number */ - if (dev->isYaffs2 && - sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && - sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { - - blockIndex[nBlocksToScan].seq = sequenceNumber; - blockIndex[nBlocksToScan].block = blk; - - nBlocksToScan++; - - if (sequenceNumber >= dev->sequenceNumber) { - dev->sequenceNumber = sequenceNumber; - } - } else if (dev->isYaffs2) { - /* TODO: Nasty sequence number! */ - T(YAFFS_TRACE_SCAN, - (TSTR - ("Block scanning block %d has bad sequence number %d" - TENDSTR), blk, sequenceNumber)); - - } - } - } - - /* Sort the blocks - * Dungy old bubble sort for now... - */ - if (dev->isYaffs2) { - yaffs_BlockIndex temp; - int i; - int j; - - for (i = 0; i < nBlocksToScan; i++) - for (j = i + 1; j < nBlocksToScan; j++) - if (blockIndex[i].seq > blockIndex[j].seq) { - temp = blockIndex[j]; - blockIndex[j] = blockIndex[i]; - blockIndex[i] = temp; - } - } - - /* Now scan the blocks looking at the data. */ - if (dev->isYaffs2) { - startIterator = 0; - endIterator = nBlocksToScan - 1; - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); - } else { - startIterator = dev->internalStartBlock; - endIterator = dev->internalEndBlock; - } - - /* For each block.... */ - for (blockIterator = startIterator; !alloc_failed && blockIterator <= endIterator; - blockIterator++) { - - if (dev->isYaffs2) { - /* get the block to scan in the correct order */ - blk = blockIndex[blockIterator].block; - } else { - blk = blockIterator; - } - - bi = yaffs_GetBlockInfo(dev, blk); - state = bi->blockState; - - deleted = 0; - - /* For each chunk in each block that needs scanning....*/ - for (c = 0; !alloc_failed && c < dev->nChunksPerBlock && - state == YAFFS_BLOCK_STATE_NEEDS_SCANNING; c++) { - /* Read the tags and decide what to do */ - chunk = blk * dev->nChunksPerBlock + c; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, - &tags); - - /* Let's have a good look at this chunk... */ - - if (!dev->isYaffs2 && tags.chunkDeleted) { - /* YAFFS1 only... - * A deleted chunk - */ - deleted++; - dev->nFreeChunks++; - /*T((" %d %d deleted\n",blk,c)); */ - } else if (!tags.chunkUsed) { - /* An unassigned chunk in the block - * This means that either the block is empty or - * this is the one being allocated from - */ - - if (c == 0) { - /* We're looking at the first chunk in the block so the block is unused */ - state = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - } else { - /* this is the block being allocated from */ - T(YAFFS_TRACE_SCAN, - (TSTR - (" Allocating from %d %d" TENDSTR), - blk, c)); - state = YAFFS_BLOCK_STATE_ALLOCATING; - dev->allocationBlock = blk; - dev->allocationPage = c; - dev->allocationBlockFinder = blk; - /* Set it to here to encourage the allocator to go forth from here. */ - - /* Yaffs2 sanity check: - * This should be the one with the highest sequence number - */ - if (dev->isYaffs2 - && (dev->sequenceNumber != - bi->sequenceNumber)) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs: Allocation block %d was not highest sequence id:" - " block seq = %d, dev seq = %d" - TENDSTR), blk,bi->sequenceNumber,dev->sequenceNumber)); - } - } - - dev->nFreeChunks += (dev->nChunksPerBlock - c); - } else if (tags.chunkId > 0) { - /* chunkId > 0 so it is a data chunk... */ - unsigned int endpos; - - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - in = yaffs_FindOrCreateObjectByNumber(dev, - tags. - objectId, - YAFFS_OBJECT_TYPE_FILE); - /* PutChunkIntoFile checks for a clash (two data chunks with - * the same chunkId). - */ - - if(!in) - alloc_failed = 1; - - if(in){ - if(!yaffs_PutChunkIntoFile(in, tags.chunkId, chunk,1)) - alloc_failed = 1; - } - - endpos = - (tags.chunkId - 1) * dev->nDataBytesPerChunk + - tags.byteCount; - if (in && - in->variantType == YAFFS_OBJECT_TYPE_FILE - && in->variant.fileVariant.scannedFileSize < - endpos) { - in->variant.fileVariant. - scannedFileSize = endpos; - if (!dev->useHeaderFileSize) { - in->variant.fileVariant. - fileSize = - in->variant.fileVariant. - scannedFileSize; - } - - } - /* T((" %d %d data %d %d\n",blk,c,tags.objectId,tags.chunkId)); */ - } else { - /* chunkId == 0, so it is an ObjectHeader. - * Thus, we read in the object header and make the object - */ - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, - chunkData, - NULL); - - oh = (yaffs_ObjectHeader *) chunkData; - - in = yaffs_FindObjectByNumber(dev, - tags.objectId); - if (in && in->variantType != oh->type) { - /* This should not happen, but somehow - * Wev'e ended up with an objectId that has been reused but not yet - * deleted, and worse still it has changed type. Delete the old object. - */ - - yaffs_DestroyObject(in); - - in = 0; - } - - in = yaffs_FindOrCreateObjectByNumber(dev, - tags. - objectId, - oh->type); - - if(!in) - alloc_failed = 1; - - if (in && oh->shadowsObject > 0) { - yaffs_HandleShadowedObject(dev, - oh-> - shadowsObject, - 0); - } - - if (in && in->valid) { - /* We have already filled this one. We have a duplicate and need to resolve it. */ - - unsigned existingSerial = in->serial; - unsigned newSerial = tags.serialNumber; - - if (dev->isYaffs2 || - ((existingSerial + 1) & 3) == - newSerial) { - /* Use new one - destroy the exisiting one */ - yaffs_DeleteChunk(dev, - in->chunkId, - 1, __LINE__); - in->valid = 0; - } else { - /* Use existing - destroy this one. */ - yaffs_DeleteChunk(dev, chunk, 1, - __LINE__); - } - } - - if (in && !in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) { - /* We only load some info, don't fiddle with directory structure */ - in->valid = 1; - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; -#endif - in->chunkId = chunk; - - } else if (in && !in->valid) { - /* we need to load this info */ - - in->valid = 1; - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; -#endif - in->chunkId = chunk; - - yaffs_SetObjectName(in, oh->name); - in->dirty = 0; - - /* directory stuff... - * hook up to parent - */ - - parent = - yaffs_FindOrCreateObjectByNumber - (dev, oh->parentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); - if (parent->variantType == - YAFFS_OBJECT_TYPE_UNKNOWN) { - /* Set up as a directory */ - parent->variantType = - YAFFS_OBJECT_TYPE_DIRECTORY; - INIT_LIST_HEAD(&parent->variant. - directoryVariant. - children); - } else if (parent->variantType != - YAFFS_OBJECT_TYPE_DIRECTORY) - { - /* Hoosterman, another problem.... - * We're trying to use a non-directory as a directory - */ - - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: attempting to use non-directory as" - " a directory in scan. Put in lost+found." - TENDSTR))); - parent = dev->lostNFoundDir; - } - - yaffs_AddObjectToDirectory(parent, in); - - if (0 && (parent == dev->deletedDir || - parent == dev->unlinkedDir)) { - in->deleted = 1; /* If it is unlinked at start up then it wants deleting */ - dev->nDeletedFiles++; - } - /* Note re hardlinks. - * Since we might scan a hardlink before its equivalent object is scanned - * we put them all in a list. - * After scanning is complete, we should have all the objects, so we run through this - * list and fix up all the chains. - */ - - switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* Todo got a problem */ - break; - case YAFFS_OBJECT_TYPE_FILE: - if (dev->isYaffs2 - && oh->isShrink) { - /* Prune back the shrunken chunks */ - yaffs_PruneResizedChunks - (in, oh->fileSize); - /* Mark the block as having a shrinkHeader */ - bi->hasShrinkHeader = 1; - } - - if (dev->useHeaderFileSize) - - in->variant.fileVariant. - fileSize = - oh->fileSize; - - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - in->variant.hardLinkVariant. - equivalentObjectId = - oh->equivalentObjectId; - in->hardLinks.next = - (struct list_head *) - hardList; - hardList = in; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); - if(!in->variant.symLinkVariant.alias) - alloc_failed = 1; - break; - } - - if (parent == dev->deletedDir) { - yaffs_DestroyObject(in); - bi->hasShrinkHeader = 1; - } - } - } - } - - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - /* If we got this far while scanning, then the block is fully allocated.*/ - state = YAFFS_BLOCK_STATE_FULL; - } - - bi->blockState = state; - - /* Now let's see if it was dirty */ - if (bi->pagesInUse == 0 && - !bi->hasShrinkHeader && - bi->blockState == YAFFS_BLOCK_STATE_FULL) { - yaffs_BlockBecameDirty(dev, blk); - } - - } - - if (blockIndex) { - YFREE(blockIndex); - } - - - /* Ok, we've done all the scanning. - * Fix up the hard link chains. - * We should now have scanned all the objects, now it's time to add these - * hardlinks. - */ - - yaffs_HardlinkFixup(dev,hardList); - - /* Handle the unlinked files. Since they were left in an unlinked state we should - * just delete them. - */ - { - struct list_head *i; - struct list_head *n; - - yaffs_Object *l; - /* Soft delete all the unlinked files */ - list_for_each_safe(i, n, - &dev->unlinkedDir->variant.directoryVariant. - children) { - if (i) { - l = list_entry(i, yaffs_Object, siblings); - yaffs_DestroyObject(l); - } - } - } - - yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - - if(alloc_failed){ - return YAFFS_FAIL; - } - - T(YAFFS_TRACE_SCAN, (TSTR("yaffs_Scan ends" TENDSTR))); - - - return YAFFS_OK; -} - -static void yaffs_CheckObjectDetailsLoaded(yaffs_Object *in) -{ - __u8 *chunkData; - yaffs_ObjectHeader *oh; - yaffs_Device *dev = in->myDev; - yaffs_ExtendedTags tags; - int result; - int alloc_failed = 0; - - if(!in) - return; - -#if 0 - T(YAFFS_TRACE_SCAN,(TSTR("details for object %d %s loaded" TENDSTR), - in->objectId, - in->lazyLoaded ? "not yet" : "already")); -#endif - - if(in->lazyLoaded){ - in->lazyLoaded = 0; - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - - result = yaffs_ReadChunkWithTagsFromNAND(dev,in->chunkId,chunkData,&tags); - oh = (yaffs_ObjectHeader *) chunkData; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; - -#endif - yaffs_SetObjectName(in, oh->name); - - if(in->variantType == YAFFS_OBJECT_TYPE_SYMLINK){ - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh->alias); - if(!in->variant.symLinkVariant.alias) - alloc_failed = 1; /* Not returned to caller */ - } - - yaffs_ReleaseTempBuffer(dev,chunkData, __LINE__); - } -} - -static int yaffs_ScanBackwards(yaffs_Device * dev) -{ - yaffs_ExtendedTags tags; - int blk; - int blockIterator; - int startIterator; - int endIterator; - int nBlocksToScan = 0; - - int chunk; - int result; - int c; - int deleted; - yaffs_BlockState state; - yaffs_Object *hardList = NULL; - yaffs_BlockInfo *bi; - int sequenceNumber; - yaffs_ObjectHeader *oh; - yaffs_Object *in; - yaffs_Object *parent; - int nBlocks = dev->internalEndBlock - dev->internalStartBlock + 1; - int itsUnlinked; - __u8 *chunkData; - - int fileSize; - int isShrink; - int foundChunksInBlock; - int equivalentObjectId; - int alloc_failed = 0; - - - yaffs_BlockIndex *blockIndex = NULL; - int altBlockIndex = 0; - - if (!dev->isYaffs2) { - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_ScanBackwards is only for YAFFS2!" TENDSTR))); - return YAFFS_FAIL; - } - - T(YAFFS_TRACE_SCAN, - (TSTR - ("yaffs_ScanBackwards starts intstartblk %d intendblk %d..." - TENDSTR), dev->internalStartBlock, dev->internalEndBlock)); - - - dev->sequenceNumber = YAFFS_LOWEST_SEQUENCE_NUMBER; - - blockIndex = YMALLOC(nBlocks * sizeof(yaffs_BlockIndex)); - - if(!blockIndex) { - blockIndex = YMALLOC_ALT(nBlocks * sizeof(yaffs_BlockIndex)); - altBlockIndex = 1; - } - - if(!blockIndex) { - T(YAFFS_TRACE_SCAN, - (TSTR("yaffs_Scan() could not allocate block index!" TENDSTR))); - return YAFFS_FAIL; - } - - dev->blocksInCheckpoint = 0; - - chunkData = yaffs_GetTempBuffer(dev, __LINE__); - - /* Scan all the blocks to determine their state */ - for (blk = dev->internalStartBlock; blk <= dev->internalEndBlock; blk++) { - bi = yaffs_GetBlockInfo(dev, blk); - yaffs_ClearChunkBits(dev, blk); - bi->pagesInUse = 0; - bi->softDeletions = 0; - - yaffs_QueryInitialBlockState(dev, blk, &state, &sequenceNumber); - - bi->blockState = state; - bi->sequenceNumber = sequenceNumber; - - if(bi->sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA) - bi->blockState = state = YAFFS_BLOCK_STATE_CHECKPOINT; - - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block scanning block %d state %d seq %d" TENDSTR), blk, - state, sequenceNumber)); - - - if(state == YAFFS_BLOCK_STATE_CHECKPOINT){ - dev->blocksInCheckpoint++; - - } else if (state == YAFFS_BLOCK_STATE_DEAD) { - T(YAFFS_TRACE_BAD_BLOCKS, - (TSTR("block %d is bad" TENDSTR), blk)); - } else if (state == YAFFS_BLOCK_STATE_EMPTY) { - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("Block empty " TENDSTR))); - dev->nErasedBlocks++; - dev->nFreeChunks += dev->nChunksPerBlock; - } else if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - - /* Determine the highest sequence number */ - if (dev->isYaffs2 && - sequenceNumber >= YAFFS_LOWEST_SEQUENCE_NUMBER && - sequenceNumber < YAFFS_HIGHEST_SEQUENCE_NUMBER) { - - blockIndex[nBlocksToScan].seq = sequenceNumber; - blockIndex[nBlocksToScan].block = blk; - - nBlocksToScan++; - - if (sequenceNumber >= dev->sequenceNumber) { - dev->sequenceNumber = sequenceNumber; - } - } else if (dev->isYaffs2) { - /* TODO: Nasty sequence number! */ - T(YAFFS_TRACE_SCAN, - (TSTR - ("Block scanning block %d has bad sequence number %d" - TENDSTR), blk, sequenceNumber)); - - } - } - } - - T(YAFFS_TRACE_SCAN, - (TSTR("%d blocks to be sorted..." TENDSTR), nBlocksToScan)); - - - - YYIELD(); - - /* Sort the blocks */ -#ifndef CONFIG_YAFFS_USE_OWN_SORT - yaffs_qsort(blockIndex, nBlocksToScan, - sizeof(yaffs_BlockIndex), ybicmp); -#else - { - /* Dungy old bubble sort... */ - - yaffs_BlockIndex temp; - int i; - int j; - - for (i = 0; i < nBlocksToScan; i++) - for (j = i + 1; j < nBlocksToScan; j++) - if (blockIndex[i].seq > blockIndex[j].seq) { - temp = blockIndex[j]; - blockIndex[j] = blockIndex[i]; - blockIndex[i] = temp; - } - } -#endif - - YYIELD(); - - T(YAFFS_TRACE_SCAN, (TSTR("...done" TENDSTR))); - - /* Now scan the blocks looking at the data. */ - startIterator = 0; - endIterator = nBlocksToScan - 1; - T(YAFFS_TRACE_SCAN_DEBUG, - (TSTR("%d blocks to be scanned" TENDSTR), nBlocksToScan)); - - /* For each block.... backwards */ - for (blockIterator = endIterator; !alloc_failed && blockIterator >= startIterator; - blockIterator--) { - /* Cooperative multitasking! This loop can run for so - long that watchdog timers expire. */ - YYIELD(); - - /* get the block to scan in the correct order */ - blk = blockIndex[blockIterator].block; - - bi = yaffs_GetBlockInfo(dev, blk); - - - state = bi->blockState; - - deleted = 0; - - /* For each chunk in each block that needs scanning.... */ - foundChunksInBlock = 0; - for (c = dev->nChunksPerBlock - 1; - !alloc_failed && c >= 0 && - (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - state == YAFFS_BLOCK_STATE_ALLOCATING); c--) { - /* Scan backwards... - * Read the tags and decide what to do - */ - - chunk = blk * dev->nChunksPerBlock + c; - - result = yaffs_ReadChunkWithTagsFromNAND(dev, chunk, NULL, - &tags); - - /* Let's have a good look at this chunk... */ - - if (!tags.chunkUsed) { - /* An unassigned chunk in the block. - * If there are used chunks after this one, then - * it is a chunk that was skipped due to failing the erased - * check. Just skip it so that it can be deleted. - * But, more typically, We get here when this is an unallocated - * chunk and his means that either the block is empty or - * this is the one being allocated from - */ - - if(foundChunksInBlock) - { - /* This is a chunk that was skipped due to failing the erased check */ - - } else if (c == 0) { - /* We're looking at the first chunk in the block so the block is unused */ - state = YAFFS_BLOCK_STATE_EMPTY; - dev->nErasedBlocks++; - } else { - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING || - state == YAFFS_BLOCK_STATE_ALLOCATING) { - if(dev->sequenceNumber == bi->sequenceNumber) { - /* this is the block being allocated from */ - - T(YAFFS_TRACE_SCAN, - (TSTR - (" Allocating from %d %d" - TENDSTR), blk, c)); - - state = YAFFS_BLOCK_STATE_ALLOCATING; - dev->allocationBlock = blk; - dev->allocationPage = c; - dev->allocationBlockFinder = blk; - } - else { - /* This is a partially written block that is not - * the current allocation block. This block must have - * had a write failure, so set up for retirement. - */ - - bi->needsRetiring = 1; - bi->gcPrioritise = 1; - - T(YAFFS_TRACE_ALWAYS, - (TSTR("Partially written block %d being set for retirement" TENDSTR), - blk)); - } - - } - - } - - dev->nFreeChunks++; - - } else if (tags.chunkId > 0) { - /* chunkId > 0 so it is a data chunk... */ - unsigned int endpos; - __u32 chunkBase = - (tags.chunkId - 1) * dev->nDataBytesPerChunk; - - foundChunksInBlock = 1; - - - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - in = yaffs_FindOrCreateObjectByNumber(dev, - tags. - objectId, - YAFFS_OBJECT_TYPE_FILE); - if(!in){ - /* Out of memory */ - alloc_failed = 1; - } - - if (in && - in->variantType == YAFFS_OBJECT_TYPE_FILE - && chunkBase < - in->variant.fileVariant.shrinkSize) { - /* This has not been invalidated by a resize */ - if(!yaffs_PutChunkIntoFile(in, tags.chunkId, - chunk, -1)){ - alloc_failed = 1; - } - - /* File size is calculated by looking at the data chunks if we have not - * seen an object header yet. Stop this practice once we find an object header. - */ - endpos = - (tags.chunkId - - 1) * dev->nDataBytesPerChunk + - tags.byteCount; - - if (!in->valid && /* have not got an object header yet */ - in->variant.fileVariant. - scannedFileSize < endpos) { - in->variant.fileVariant. - scannedFileSize = endpos; - in->variant.fileVariant. - fileSize = - in->variant.fileVariant. - scannedFileSize; - } - - } else if(in) { - /* This chunk has been invalidated by a resize, so delete */ - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - - } - } else { - /* chunkId == 0, so it is an ObjectHeader. - * Thus, we read in the object header and make the object - */ - foundChunksInBlock = 1; - - yaffs_SetChunkBit(dev, blk, c); - bi->pagesInUse++; - - oh = NULL; - in = NULL; - - if (tags.extraHeaderInfoAvailable) { - in = yaffs_FindOrCreateObjectByNumber - (dev, tags.objectId, - tags.extraObjectType); - } - - if (!in || -#ifdef CONFIG_YAFFS_DISABLE_LAZY_LOAD - !in->valid || -#endif - tags.extraShadows || - (!in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == YAFFS_OBJECTID_LOSTNFOUND)) - ) { - - /* If we don't have valid info then we need to read the chunk - * TODO In future we can probably defer reading the chunk and - * living with invalid data until needed. - */ - - result = yaffs_ReadChunkWithTagsFromNAND(dev, - chunk, - chunkData, - NULL); - - oh = (yaffs_ObjectHeader *) chunkData; - - if (!in) - in = yaffs_FindOrCreateObjectByNumber(dev, tags.objectId, oh->type); - - } - - if (!in) { - /* TODO Hoosterman we have a problem! */ - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: Could not make object for object %d " - "at chunk %d during scan" - TENDSTR), tags.objectId, chunk)); - - } - - if (in->valid) { - /* We have already filled this one. - * We have a duplicate that will be discarded, but - * we first have to suck out resize info if it is a file. - */ - - if ((in->variantType == YAFFS_OBJECT_TYPE_FILE) && - ((oh && - oh-> type == YAFFS_OBJECT_TYPE_FILE)|| - (tags.extraHeaderInfoAvailable && - tags.extraObjectType == YAFFS_OBJECT_TYPE_FILE)) - ) { - __u32 thisSize = - (oh) ? oh->fileSize : tags. - extraFileLength; - __u32 parentObjectId = - (oh) ? oh-> - parentObjectId : tags. - extraParentObjectId; - unsigned isShrink = - (oh) ? oh->isShrink : tags. - extraIsShrinkHeader; - - /* If it is deleted (unlinked at start also means deleted) - * we treat the file size as being zeroed at this point. - */ - if (parentObjectId == - YAFFS_OBJECTID_DELETED - || parentObjectId == - YAFFS_OBJECTID_UNLINKED) { - thisSize = 0; - isShrink = 1; - } - - if (isShrink && - in->variant.fileVariant. - shrinkSize > thisSize) { - in->variant.fileVariant. - shrinkSize = - thisSize; - } - - if (isShrink) { - bi->hasShrinkHeader = 1; - } - - } - /* Use existing - destroy this one. */ - yaffs_DeleteChunk(dev, chunk, 1, __LINE__); - - } - - if (!in->valid && - (tags.objectId == YAFFS_OBJECTID_ROOT || - tags.objectId == - YAFFS_OBJECTID_LOSTNFOUND)) { - /* We only load some info, don't fiddle with directory structure */ - in->valid = 1; - - if(oh) { - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; - -#endif - } else { - in->variantType = tags.extraObjectType; - in->lazyLoaded = 1; - } - - in->chunkId = chunk; - - } else if (!in->valid) { - /* we need to load this info */ - - in->valid = 1; - in->chunkId = chunk; - - if(oh) { - in->variantType = oh->type; - - in->yst_mode = oh->yst_mode; -#ifdef CONFIG_YAFFS_WINCE - in->win_atime[0] = oh->win_atime[0]; - in->win_ctime[0] = oh->win_ctime[0]; - in->win_mtime[0] = oh->win_mtime[0]; - in->win_atime[1] = oh->win_atime[1]; - in->win_ctime[1] = oh->win_ctime[1]; - in->win_mtime[1] = oh->win_mtime[1]; -#else - in->yst_uid = oh->yst_uid; - in->yst_gid = oh->yst_gid; - in->yst_atime = oh->yst_atime; - in->yst_mtime = oh->yst_mtime; - in->yst_ctime = oh->yst_ctime; - in->yst_rdev = oh->yst_rdev; -#endif - - if (oh->shadowsObject > 0) - yaffs_HandleShadowedObject(dev, - oh-> - shadowsObject, - 1); - - - yaffs_SetObjectName(in, oh->name); - parent = - yaffs_FindOrCreateObjectByNumber - (dev, oh->parentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); - - fileSize = oh->fileSize; - isShrink = oh->isShrink; - equivalentObjectId = oh->equivalentObjectId; - - } - else { - in->variantType = tags.extraObjectType; - parent = - yaffs_FindOrCreateObjectByNumber - (dev, tags.extraParentObjectId, - YAFFS_OBJECT_TYPE_DIRECTORY); - fileSize = tags.extraFileLength; - isShrink = tags.extraIsShrinkHeader; - equivalentObjectId = tags.extraEquivalentObjectId; - in->lazyLoaded = 1; - - } - in->dirty = 0; - - /* directory stuff... - * hook up to parent - */ - - if (parent->variantType == - YAFFS_OBJECT_TYPE_UNKNOWN) { - /* Set up as a directory */ - parent->variantType = - YAFFS_OBJECT_TYPE_DIRECTORY; - INIT_LIST_HEAD(&parent->variant. - directoryVariant. - children); - } else if (parent->variantType != - YAFFS_OBJECT_TYPE_DIRECTORY) - { - /* Hoosterman, another problem.... - * We're trying to use a non-directory as a directory - */ - - T(YAFFS_TRACE_ERROR, - (TSTR - ("yaffs tragedy: attempting to use non-directory as" - " a directory in scan. Put in lost+found." - TENDSTR))); - parent = dev->lostNFoundDir; - } - - yaffs_AddObjectToDirectory(parent, in); - - itsUnlinked = (parent == dev->deletedDir) || - (parent == dev->unlinkedDir); - - if (isShrink) { - /* Mark the block as having a shrinkHeader */ - bi->hasShrinkHeader = 1; - } - - /* Note re hardlinks. - * Since we might scan a hardlink before its equivalent object is scanned - * we put them all in a list. - * After scanning is complete, we should have all the objects, so we run - * through this list and fix up all the chains. - */ - - switch (in->variantType) { - case YAFFS_OBJECT_TYPE_UNKNOWN: - /* Todo got a problem */ - break; - case YAFFS_OBJECT_TYPE_FILE: - - if (in->variant.fileVariant. - scannedFileSize < fileSize) { - /* This covers the case where the file size is greater - * than where the data is - * This will happen if the file is resized to be larger - * than its current data extents. - */ - in->variant.fileVariant.fileSize = fileSize; - in->variant.fileVariant.scannedFileSize = - in->variant.fileVariant.fileSize; - } - - if (isShrink && - in->variant.fileVariant.shrinkSize > fileSize) { - in->variant.fileVariant.shrinkSize = fileSize; - } - - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - if(!itsUnlinked) { - in->variant.hardLinkVariant.equivalentObjectId = - equivalentObjectId; - in->hardLinks.next = - (struct list_head *) hardList; - hardList = in; - } - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - /* Do nothing */ - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - if(oh){ - in->variant.symLinkVariant.alias = - yaffs_CloneString(oh-> - alias); - if(!in->variant.symLinkVariant.alias) - alloc_failed = 1; - } - break; - } - - } - - } - - } /* End of scanning for each chunk */ - - if (state == YAFFS_BLOCK_STATE_NEEDS_SCANNING) { - /* If we got this far while scanning, then the block is fully allocated. */ - state = YAFFS_BLOCK_STATE_FULL; - } - - bi->blockState = state; - - /* Now let's see if it was dirty */ - if (bi->pagesInUse == 0 && - !bi->hasShrinkHeader && - bi->blockState == YAFFS_BLOCK_STATE_FULL) { - yaffs_BlockBecameDirty(dev, blk); - } - - } - - if (altBlockIndex) - YFREE_ALT(blockIndex); - else - YFREE(blockIndex); - - /* Ok, we've done all the scanning. - * Fix up the hard link chains. - * We should now have scanned all the objects, now it's time to add these - * hardlinks. - */ - yaffs_HardlinkFixup(dev,hardList); - - - /* - * Sort out state of unlinked and deleted objects. - */ - { - struct list_head *i; - struct list_head *n; - - yaffs_Object *l; - - /* Soft delete all the unlinked files */ - list_for_each_safe(i, n, - &dev->unlinkedDir->variant.directoryVariant. - children) { - if (i) { - l = list_entry(i, yaffs_Object, siblings); - yaffs_DestroyObject(l); - } - } - - /* Soft delete all the deletedDir files */ - list_for_each_safe(i, n, - &dev->deletedDir->variant.directoryVariant. - children) { - if (i) { - l = list_entry(i, yaffs_Object, siblings); - yaffs_DestroyObject(l); - - } - } - } - - yaffs_ReleaseTempBuffer(dev, chunkData, __LINE__); - - if(alloc_failed){ - return YAFFS_FAIL; - } - - T(YAFFS_TRACE_SCAN, (TSTR("yaffs_ScanBackwards ends" TENDSTR))); - - return YAFFS_OK; -} - -/*------------------------------ Directory Functions ----------------------------- */ - -static void yaffs_RemoveObjectFromDirectory(yaffs_Object * obj) -{ - yaffs_Device *dev = obj->myDev; - - if(dev && dev->removeObjectCallback) - dev->removeObjectCallback(obj); - - list_del_init(&obj->siblings); - obj->parent = NULL; -} - - -static void yaffs_AddObjectToDirectory(yaffs_Object * directory, - yaffs_Object * obj) -{ - - if (!directory) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: Trying to add an object to a null pointer directory" - TENDSTR))); - YBUG(); - } - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: Trying to add an object to a non-directory" - TENDSTR))); - YBUG(); - } - - if (obj->siblings.prev == NULL) { - /* Not initialised */ - INIT_LIST_HEAD(&obj->siblings); - - } else if (!list_empty(&obj->siblings)) { - /* If it is holed up somewhere else, un hook it */ - yaffs_RemoveObjectFromDirectory(obj); - } - /* Now add it */ - list_add(&obj->siblings, &directory->variant.directoryVariant.children); - obj->parent = directory; - - if (directory == obj->myDev->unlinkedDir - || directory == obj->myDev->deletedDir) { - obj->unlinked = 1; - obj->myDev->nUnlinkedFiles++; - obj->renameAllowed = 0; - } -} - -yaffs_Object *yaffs_FindObjectByName(yaffs_Object * directory, - const YCHAR * name) -{ - int sum; - - struct list_head *i; - YCHAR buffer[YAFFS_MAX_NAME_LENGTH + 1]; - - yaffs_Object *l; - - if (!name) { - return NULL; - } - - if (!directory) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: null pointer directory" - TENDSTR))); - YBUG(); - } - if (directory->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); - YBUG(); - } - - sum = yaffs_CalcNameSum(name); - - list_for_each(i, &directory->variant.directoryVariant.children) { - if (i) { - l = list_entry(i, yaffs_Object, siblings); - - yaffs_CheckObjectDetailsLoaded(l); - - /* Special case for lost-n-found */ - if (l->objectId == YAFFS_OBJECTID_LOSTNFOUND) { - if (yaffs_strcmp(name, YAFFS_LOSTNFOUND_NAME) == 0) { - return l; - } - } else if (yaffs_SumCompare(l->sum, sum) || l->chunkId <= 0) - { - /* LostnFound cunk called Objxxx - * Do a real check - */ - yaffs_GetObjectName(l, buffer, - YAFFS_MAX_NAME_LENGTH); - if (yaffs_strncmp(name, buffer,YAFFS_MAX_NAME_LENGTH) == 0) { - return l; - } - - } - } - } - - return NULL; -} - - -#if 0 -int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, - int (*fn) (yaffs_Object *)) -{ - struct list_head *i; - yaffs_Object *l; - - if (!theDir) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: null pointer directory" - TENDSTR))); - YBUG(); - } - if (theDir->variantType != YAFFS_OBJECT_TYPE_DIRECTORY) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("tragedy: yaffs_FindObjectByName: non-directory" TENDSTR))); - YBUG(); - } - - list_for_each(i, &theDir->variant.directoryVariant.children) { - if (i) { - l = list_entry(i, yaffs_Object, siblings); - if (l && !fn(l)) { - return YAFFS_FAIL; - } - } - } - - return YAFFS_OK; - -} -#endif - -/* GetEquivalentObject dereferences any hard links to get to the - * actual object. - */ - -yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj) -{ - if (obj && obj->variantType == YAFFS_OBJECT_TYPE_HARDLINK) { - /* We want the object id of the equivalent object, not this one */ - obj = obj->variant.hardLinkVariant.equivalentObject; - yaffs_CheckObjectDetailsLoaded(obj); - } - return obj; - -} - -int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize) -{ - memset(name, 0, buffSize * sizeof(YCHAR)); - - yaffs_CheckObjectDetailsLoaded(obj); - - if (obj->objectId == YAFFS_OBJECTID_LOSTNFOUND) { - yaffs_strncpy(name, YAFFS_LOSTNFOUND_NAME, buffSize - 1); - } else if (obj->chunkId <= 0) { - YCHAR locName[20]; - /* make up a name */ - yaffs_sprintf(locName, _Y("%s%d"), YAFFS_LOSTNFOUND_PREFIX, - obj->objectId); - yaffs_strncpy(name, locName, buffSize - 1); - - } -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - else if (obj->shortName[0]) { - yaffs_strcpy(name, obj->shortName); - } -#endif - else { - int result; - __u8 *buffer = yaffs_GetTempBuffer(obj->myDev, __LINE__); - - yaffs_ObjectHeader *oh = (yaffs_ObjectHeader *) buffer; - - memset(buffer, 0, obj->myDev->nDataBytesPerChunk); - - if (obj->chunkId >= 0) { - result = yaffs_ReadChunkWithTagsFromNAND(obj->myDev, - obj->chunkId, buffer, - NULL); - } - yaffs_strncpy(name, oh->name, buffSize - 1); - - yaffs_ReleaseTempBuffer(obj->myDev, buffer, __LINE__); - } - - return yaffs_strlen(name); -} - -int yaffs_GetObjectFileLength(yaffs_Object * obj) -{ - - /* Dereference any hard linking */ - obj = yaffs_GetEquivalentObject(obj); - - if (obj->variantType == YAFFS_OBJECT_TYPE_FILE) { - return obj->variant.fileVariant.fileSize; - } - if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { - return yaffs_strlen(obj->variant.symLinkVariant.alias); - } else { - /* Only a directory should drop through to here */ - return obj->myDev->nDataBytesPerChunk; - } -} - -int yaffs_GetObjectLinkCount(yaffs_Object * obj) -{ - int count = 0; - struct list_head *i; - - if (!obj->unlinked) { - count++; /* the object itself */ - } - list_for_each(i, &obj->hardLinks) { - count++; /* add the hard links; */ - } - return count; - -} - -int yaffs_GetObjectInode(yaffs_Object * obj) -{ - obj = yaffs_GetEquivalentObject(obj); - - return obj->objectId; -} - -unsigned yaffs_GetObjectType(yaffs_Object * obj) -{ - obj = yaffs_GetEquivalentObject(obj); - - switch (obj->variantType) { - case YAFFS_OBJECT_TYPE_FILE: - return DT_REG; - break; - case YAFFS_OBJECT_TYPE_DIRECTORY: - return DT_DIR; - break; - case YAFFS_OBJECT_TYPE_SYMLINK: - return DT_LNK; - break; - case YAFFS_OBJECT_TYPE_HARDLINK: - return DT_REG; - break; - case YAFFS_OBJECT_TYPE_SPECIAL: - if (S_ISFIFO(obj->yst_mode)) - return DT_FIFO; - if (S_ISCHR(obj->yst_mode)) - return DT_CHR; - if (S_ISBLK(obj->yst_mode)) - return DT_BLK; - if (S_ISSOCK(obj->yst_mode)) - return DT_SOCK; - default: - return DT_REG; - break; - } -} - -YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj) -{ - obj = yaffs_GetEquivalentObject(obj); - if (obj->variantType == YAFFS_OBJECT_TYPE_SYMLINK) { - return yaffs_CloneString(obj->variant.symLinkVariant.alias); - } else { - return yaffs_CloneString(_Y("")); - } -} - -#ifndef CONFIG_YAFFS_WINCE - -int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr) -{ - unsigned int valid = attr->ia_valid; - - if (valid & ATTR_MODE) - obj->yst_mode = attr->ia_mode; - if (valid & ATTR_UID) - obj->yst_uid = attr->ia_uid; - if (valid & ATTR_GID) - obj->yst_gid = attr->ia_gid; - - if (valid & ATTR_ATIME) - obj->yst_atime = Y_TIME_CONVERT(attr->ia_atime); - if (valid & ATTR_CTIME) - obj->yst_ctime = Y_TIME_CONVERT(attr->ia_ctime); - if (valid & ATTR_MTIME) - obj->yst_mtime = Y_TIME_CONVERT(attr->ia_mtime); - - if (valid & ATTR_SIZE) - yaffs_ResizeFile(obj, attr->ia_size); - - yaffs_UpdateObjectHeader(obj, NULL, 1, 0, 0); - - return YAFFS_OK; - -} -int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr) -{ - unsigned int valid = 0; - - attr->ia_mode = obj->yst_mode; - valid |= ATTR_MODE; - attr->ia_uid = obj->yst_uid; - valid |= ATTR_UID; - attr->ia_gid = obj->yst_gid; - valid |= ATTR_GID; - - Y_TIME_CONVERT(attr->ia_atime) = obj->yst_atime; - valid |= ATTR_ATIME; - Y_TIME_CONVERT(attr->ia_ctime) = obj->yst_ctime; - valid |= ATTR_CTIME; - Y_TIME_CONVERT(attr->ia_mtime) = obj->yst_mtime; - valid |= ATTR_MTIME; - - attr->ia_size = yaffs_GetFileSize(obj); - valid |= ATTR_SIZE; - - attr->ia_valid = valid; - - return YAFFS_OK; - -} - -#endif - -#if 0 -int yaffs_DumpObject(yaffs_Object * obj) -{ - YCHAR name[257]; - - yaffs_GetObjectName(obj, name, 256); - - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("Object %d, inode %d \"%s\"\n dirty %d valid %d serial %d sum %d" - " chunk %d type %d size %d\n" - TENDSTR), obj->objectId, yaffs_GetObjectInode(obj), name, - obj->dirty, obj->valid, obj->serial, obj->sum, obj->chunkId, - yaffs_GetObjectType(obj), yaffs_GetObjectFileLength(obj))); - - return YAFFS_OK; -} -#endif - -/*---------------------------- Initialisation code -------------------------------------- */ - -static int yaffs_CheckDevFunctions(const yaffs_Device * dev) -{ - - /* Common functions, gotta have */ - if (!dev->eraseBlockInNAND || !dev->initialiseNAND) - return 0; - -#ifdef CONFIG_YAFFS_YAFFS2 - - /* Can use the "with tags" style interface for yaffs1 or yaffs2 */ - if (dev->writeChunkWithTagsToNAND && - dev->readChunkWithTagsFromNAND && - !dev->writeChunkToNAND && - !dev->readChunkFromNAND && - dev->markNANDBlockBad && dev->queryNANDBlock) - return 1; -#endif - - /* Can use the "spare" style interface for yaffs1 */ - if (!dev->isYaffs2 && - !dev->writeChunkWithTagsToNAND && - !dev->readChunkWithTagsFromNAND && - dev->writeChunkToNAND && - dev->readChunkFromNAND && - !dev->markNANDBlockBad && !dev->queryNANDBlock) - return 1; - - return 0; /* bad */ -} - - -static int yaffs_CreateInitialDirectories(yaffs_Device *dev) -{ - /* Initialise the unlinked, deleted, root and lost and found directories */ - - dev->lostNFoundDir = dev->rootDir = NULL; - dev->unlinkedDir = dev->deletedDir = NULL; - - dev->unlinkedDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_UNLINKED, S_IFDIR); - - dev->deletedDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_DELETED, S_IFDIR); - - dev->rootDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_ROOT, - YAFFS_ROOT_MODE | S_IFDIR); - dev->lostNFoundDir = - yaffs_CreateFakeDirectory(dev, YAFFS_OBJECTID_LOSTNFOUND, - YAFFS_LOSTNFOUND_MODE | S_IFDIR); - - if(dev->lostNFoundDir && dev->rootDir && dev->unlinkedDir && dev->deletedDir){ - yaffs_AddObjectToDirectory(dev->rootDir, dev->lostNFoundDir); - return YAFFS_OK; - } - - return YAFFS_FAIL; -} - -int yaffs_GutsInitialise(yaffs_Device * dev) -{ - int init_failed = 0; - unsigned x; - int bits; - - T(YAFFS_TRACE_TRACING, (TSTR("yaffs: yaffs_GutsInitialise()" TENDSTR))); - - /* Check stuff that must be set */ - - if (!dev) { - T(YAFFS_TRACE_ALWAYS, (TSTR("yaffs: Need a device" TENDSTR))); - return YAFFS_FAIL; - } - - dev->internalStartBlock = dev->startBlock; - dev->internalEndBlock = dev->endBlock; - dev->blockOffset = 0; - dev->chunkOffset = 0; - dev->nFreeChunks = 0; - - if (dev->startBlock == 0) { - dev->internalStartBlock = dev->startBlock + 1; - dev->internalEndBlock = dev->endBlock + 1; - dev->blockOffset = 1; - dev->chunkOffset = dev->nChunksPerBlock; - } - - /* Check geometry parameters. */ - - if ((dev->isYaffs2 && dev->nDataBytesPerChunk < 1024) || - (!dev->isYaffs2 && dev->nDataBytesPerChunk != 512) || - dev->nChunksPerBlock < 2 || - dev->nReservedBlocks < 2 || - dev->internalStartBlock <= 0 || - dev->internalEndBlock <= 0 || - dev->internalEndBlock <= (dev->internalStartBlock + dev->nReservedBlocks + 2) // otherwise it is too small - ) { - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs: NAND geometry problems: chunk size %d, type is yaffs%s " - TENDSTR), dev->nDataBytesPerChunk, dev->isYaffs2 ? "2" : "")); - return YAFFS_FAIL; - } - - if (yaffs_InitialiseNAND(dev) != YAFFS_OK) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: InitialiseNAND failed" TENDSTR))); - return YAFFS_FAIL; - } - - /* Got the right mix of functions? */ - if (!yaffs_CheckDevFunctions(dev)) { - /* Function missing */ - T(YAFFS_TRACE_ALWAYS, - (TSTR - ("yaffs: device function(s) missing or wrong\n" TENDSTR))); - - return YAFFS_FAIL; - } - - /* This is really a compilation check. */ - if (!yaffs_CheckStructures()) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs_CheckStructures failed\n" TENDSTR))); - return YAFFS_FAIL; - } - - if (dev->isMounted) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: device already mounted\n" TENDSTR))); - return YAFFS_FAIL; - } - - /* Finished with most checks. One or two more checks happen later on too. */ - - dev->isMounted = 1; - - - - /* OK now calculate a few things for the device */ - - /* - * Calculate all the chunk size manipulation numbers: - */ - /* Start off assuming it is a power of 2 */ - dev->chunkShift = ShiftDiv(dev->nDataBytesPerChunk); - dev->chunkMask = (1<<dev->chunkShift) - 1; - - if(dev->nDataBytesPerChunk == (dev->chunkMask + 1)){ - /* Yes it is a power of 2, disable crumbs */ - dev->crumbMask = 0; - dev->crumbShift = 0; - dev->crumbsPerChunk = 0; - } else { - /* Not a power of 2, use crumbs instead */ - dev->crumbShift = ShiftDiv(sizeof(yaffs_PackedTags2TagsPart)); - dev->crumbMask = (1<<dev->crumbShift)-1; - dev->crumbsPerChunk = dev->nDataBytesPerChunk/(1 << dev->crumbShift); - dev->chunkShift = 0; - dev->chunkMask = 0; - } - - - /* - * Calculate chunkGroupBits. - * We need to find the next power of 2 > than internalEndBlock - */ - - x = dev->nChunksPerBlock * (dev->internalEndBlock + 1); - - bits = ShiftsGE(x); - - /* Set up tnode width if wide tnodes are enabled. */ - if(!dev->wideTnodesDisabled){ - /* bits must be even so that we end up with 32-bit words */ - if(bits & 1) - bits++; - if(bits < 16) - dev->tnodeWidth = 16; - else - dev->tnodeWidth = bits; - } - else - dev->tnodeWidth = 16; - - dev->tnodeMask = (1<<dev->tnodeWidth)-1; - - /* Level0 Tnodes are 16 bits or wider (if wide tnodes are enabled), - * so if the bitwidth of the - * chunk range we're using is greater than 16 we need - * to figure out chunk shift and chunkGroupSize - */ - - if (bits <= dev->tnodeWidth) - dev->chunkGroupBits = 0; - else - dev->chunkGroupBits = bits - dev->tnodeWidth; - - - dev->chunkGroupSize = 1 << dev->chunkGroupBits; - - if (dev->nChunksPerBlock < dev->chunkGroupSize) { - /* We have a problem because the soft delete won't work if - * the chunk group size > chunks per block. - * This can be remedied by using larger "virtual blocks". - */ - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: chunk group too large\n" TENDSTR))); - - return YAFFS_FAIL; - } - - /* OK, we've finished verifying the device, lets continue with initialisation */ - - /* More device initialisation */ - dev->garbageCollections = 0; - dev->passiveGarbageCollections = 0; - dev->currentDirtyChecker = 0; - dev->bufferedBlock = -1; - dev->doingBufferedBlockRewrite = 0; - dev->nDeletedFiles = 0; - dev->nBackgroundDeletions = 0; - dev->nUnlinkedFiles = 0; - dev->eccFixed = 0; - dev->eccUnfixed = 0; - dev->tagsEccFixed = 0; - dev->tagsEccUnfixed = 0; - dev->nErasureFailures = 0; - dev->nErasedBlocks = 0; - dev->isDoingGC = 0; - dev->hasPendingPrioritisedGCs = 1; /* Assume the worst for now, will get fixed on first GC */ - - /* Initialise temporary buffers and caches. */ - if(!yaffs_InitialiseTempBuffers(dev)) - init_failed = 1; - - dev->srCache = NULL; - dev->gcCleanupList = NULL; - - - if (!init_failed && - dev->nShortOpCaches > 0) { - int i; - __u8 *buf; - int srCacheBytes = dev->nShortOpCaches * sizeof(yaffs_ChunkCache); - - if (dev->nShortOpCaches > YAFFS_MAX_SHORT_OP_CACHES) { - dev->nShortOpCaches = YAFFS_MAX_SHORT_OP_CACHES; - } - - buf = dev->srCache = YMALLOC(srCacheBytes); - - if(dev->srCache) - memset(dev->srCache,0,srCacheBytes); - - for (i = 0; i < dev->nShortOpCaches && buf; i++) { - dev->srCache[i].object = NULL; - dev->srCache[i].lastUse = 0; - dev->srCache[i].dirty = 0; - dev->srCache[i].data = buf = YMALLOC_DMA(dev->nDataBytesPerChunk); - } - if(!buf) - init_failed = 1; - - dev->srLastUse = 0; - } - - dev->cacheHits = 0; - - if(!init_failed){ - dev->gcCleanupList = YMALLOC(dev->nChunksPerBlock * sizeof(__u32)); - if(!dev->gcCleanupList) - init_failed = 1; - } - - if (dev->isYaffs2) { - dev->useHeaderFileSize = 1; - } - if(!init_failed && !yaffs_InitialiseBlocks(dev)) - init_failed = 1; - - yaffs_InitialiseTnodes(dev); - yaffs_InitialiseObjects(dev); - - if(!init_failed && !yaffs_CreateInitialDirectories(dev)) - init_failed = 1; - - - if(!init_failed){ - /* Now scan the flash. */ - if (dev->isYaffs2) { - if(yaffs_CheckpointRestore(dev)) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("yaffs: restored from checkpoint" TENDSTR))); - } else { - - /* Clean up the mess caused by an aborted checkpoint load - * and scan backwards. - */ - yaffs_DeinitialiseBlocks(dev); - yaffs_DeinitialiseTnodes(dev); - yaffs_DeinitialiseObjects(dev); - - - dev->nErasedBlocks = 0; - dev->nFreeChunks = 0; - dev->allocationBlock = -1; - dev->allocationPage = -1; - dev->nDeletedFiles = 0; - dev->nUnlinkedFiles = 0; - dev->nBackgroundDeletions = 0; - dev->oldestDirtySequence = 0; - - if(!init_failed && !yaffs_InitialiseBlocks(dev)) - init_failed = 1; - - yaffs_InitialiseTnodes(dev); - yaffs_InitialiseObjects(dev); - - if(!init_failed && !yaffs_CreateInitialDirectories(dev)) - init_failed = 1; - - if(!init_failed && !yaffs_ScanBackwards(dev)) - init_failed = 1; - } - }else - if(!yaffs_Scan(dev)) - init_failed = 1; - } - - if(init_failed){ - /* Clean up the mess */ - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: yaffs_GutsInitialise() aborted.\n" TENDSTR))); - - yaffs_Deinitialise(dev); - return YAFFS_FAIL; - } - - /* Zero out stats */ - dev->nPageReads = 0; - dev->nPageWrites = 0; - dev->nBlockErasures = 0; - dev->nGCCopies = 0; - dev->nRetriedWrites = 0; - - dev->nRetiredBlocks = 0; - - yaffs_VerifyFreeChunks(dev); - yaffs_VerifyBlocks(dev); - - - T(YAFFS_TRACE_TRACING, - (TSTR("yaffs: yaffs_GutsInitialise() done.\n" TENDSTR))); - return YAFFS_OK; - -} - -void yaffs_Deinitialise(yaffs_Device * dev) -{ - if (dev->isMounted) { - int i; - - yaffs_DeinitialiseBlocks(dev); - yaffs_DeinitialiseTnodes(dev); - yaffs_DeinitialiseObjects(dev); - if (dev->nShortOpCaches > 0 && - dev->srCache) { - - for (i = 0; i < dev->nShortOpCaches; i++) { - if(dev->srCache[i].data) - YFREE(dev->srCache[i].data); - dev->srCache[i].data = NULL; - } - - YFREE(dev->srCache); - dev->srCache = NULL; - } - - YFREE(dev->gcCleanupList); - - for (i = 0; i < YAFFS_N_TEMP_BUFFERS; i++) { - YFREE(dev->tempBuffer[i].buffer); - } - - dev->isMounted = 0; - } - -} - -static int yaffs_CountFreeChunks(yaffs_Device * dev) -{ - int nFree; - int b; - - yaffs_BlockInfo *blk; - - for (nFree = 0, b = dev->internalStartBlock; b <= dev->internalEndBlock; - b++) { - blk = yaffs_GetBlockInfo(dev, b); - - switch (blk->blockState) { - case YAFFS_BLOCK_STATE_EMPTY: - case YAFFS_BLOCK_STATE_ALLOCATING: - case YAFFS_BLOCK_STATE_COLLECTING: - case YAFFS_BLOCK_STATE_FULL: - nFree += - (dev->nChunksPerBlock - blk->pagesInUse + - blk->softDeletions); - break; - default: - break; - } - - } - - return nFree; -} - -int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev) -{ - /* This is what we report to the outside world */ - - int nFree; - int nDirtyCacheChunks; - int blocksForCheckpoint; - -#if 1 - nFree = dev->nFreeChunks; -#else - nFree = yaffs_CountFreeChunks(dev); -#endif - - nFree += dev->nDeletedFiles; - - /* Now count the number of dirty chunks in the cache and subtract those */ - - { - int i; - for (nDirtyCacheChunks = 0, i = 0; i < dev->nShortOpCaches; i++) { - if (dev->srCache[i].dirty) - nDirtyCacheChunks++; - } - } - - nFree -= nDirtyCacheChunks; - - nFree -= ((dev->nReservedBlocks + 1) * dev->nChunksPerBlock); - - /* Now we figure out how much to reserve for the checkpoint and report that... */ - blocksForCheckpoint = dev->nCheckpointReservedBlocks - dev->blocksInCheckpoint; - if(blocksForCheckpoint < 0) - blocksForCheckpoint = 0; - - nFree -= (blocksForCheckpoint * dev->nChunksPerBlock); - - if (nFree < 0) - nFree = 0; - - return nFree; - -} - -static int yaffs_freeVerificationFailures; - -static void yaffs_VerifyFreeChunks(yaffs_Device * dev) -{ - int counted; - int difference; - - if(yaffs_SkipVerification(dev)) - return; - - counted = yaffs_CountFreeChunks(dev); - - difference = dev->nFreeChunks - counted; - - if (difference) { - T(YAFFS_TRACE_ALWAYS, - (TSTR("Freechunks verification failure %d %d %d" TENDSTR), - dev->nFreeChunks, counted, difference)); - yaffs_freeVerificationFailures++; - } -} - -/*---------------------------------------- YAFFS test code ----------------------*/ - -#define yaffs_CheckStruct(structure,syze, name) \ - if(sizeof(structure) != syze) \ - { \ - T(YAFFS_TRACE_ALWAYS,(TSTR("%s should be %d but is %d\n" TENDSTR),\ - name,syze,sizeof(structure))); \ - return YAFFS_FAIL; \ - } - -static int yaffs_CheckStructures(void) -{ -/* yaffs_CheckStruct(yaffs_Tags,8,"yaffs_Tags") */ -/* yaffs_CheckStruct(yaffs_TagsUnion,8,"yaffs_TagsUnion") */ -/* yaffs_CheckStruct(yaffs_Spare,16,"yaffs_Spare") */ -#ifndef CONFIG_YAFFS_TNODE_LIST_DEBUG - yaffs_CheckStruct(yaffs_Tnode, 2 * YAFFS_NTNODES_LEVEL0, "yaffs_Tnode") -#endif - yaffs_CheckStruct(yaffs_ObjectHeader, 512, "yaffs_ObjectHeader") - - return YAFFS_OK; -} diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.h deleted file mode 100644 index ea06c1a..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_guts.h +++ /dev/null @@ -1,902 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_GUTS_H__ -#define __YAFFS_GUTS_H__ - -#include "devextras.h" -#include "yportenv.h" - -#define YAFFS_OK 1 -#define YAFFS_FAIL 0 - -/* Give us a Y=0x59, - * Give us an A=0x41, - * Give us an FF=0xFF - * Give us an S=0x53 - * And what have we got... - */ -#define YAFFS_MAGIC 0x5941FF53 - -#define YAFFS_NTNODES_LEVEL0 16 -#define YAFFS_TNODES_LEVEL0_BITS 4 -#define YAFFS_TNODES_LEVEL0_MASK 0xf - -#define YAFFS_NTNODES_INTERNAL (YAFFS_NTNODES_LEVEL0 / 2) -#define YAFFS_TNODES_INTERNAL_BITS (YAFFS_TNODES_LEVEL0_BITS - 1) -#define YAFFS_TNODES_INTERNAL_MASK 0x7 -#define YAFFS_TNODES_MAX_LEVEL 6 - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -#define YAFFS_BYTES_PER_SPARE 16 -#define YAFFS_BYTES_PER_CHUNK 512 -#define YAFFS_CHUNK_SIZE_SHIFT 9 -#define YAFFS_CHUNKS_PER_BLOCK 32 -#define YAFFS_BYTES_PER_BLOCK (YAFFS_CHUNKS_PER_BLOCK*YAFFS_BYTES_PER_CHUNK) -#endif - -#define YAFFS_MIN_YAFFS2_CHUNK_SIZE 1024 -#define YAFFS_MIN_YAFFS2_SPARE_SIZE 32 - -#define YAFFS_MAX_CHUNK_ID 0x000FFFFF - -#define YAFFS_UNUSED_OBJECT_ID 0x0003FFFF - -#define YAFFS_ALLOCATION_NOBJECTS 100 -#define YAFFS_ALLOCATION_NTNODES 100 -#define YAFFS_ALLOCATION_NLINKS 100 - -#define YAFFS_NOBJECT_BUCKETS 256 - - -#define YAFFS_OBJECT_SPACE 0x40000 - -#define YAFFS_CHECKPOINT_VERSION 3 - -#ifdef CONFIG_YAFFS_UNICODE -#define YAFFS_MAX_NAME_LENGTH 127 -#define YAFFS_MAX_ALIAS_LENGTH 79 -#else -#define YAFFS_MAX_NAME_LENGTH 255 -#define YAFFS_MAX_ALIAS_LENGTH 159 -#endif - -#define YAFFS_SHORT_NAME_LENGTH 15 - -/* Some special object ids for pseudo objects */ -#define YAFFS_OBJECTID_ROOT 1 -#define YAFFS_OBJECTID_LOSTNFOUND 2 -#define YAFFS_OBJECTID_UNLINKED 3 -#define YAFFS_OBJECTID_DELETED 4 - -/* Sseudo object ids for checkpointing */ -#define YAFFS_OBJECTID_SB_HEADER 0x10 -#define YAFFS_OBJECTID_CHECKPOINT_DATA 0x20 -#define YAFFS_SEQUENCE_CHECKPOINT_DATA 0x21 - -/* */ - -#define YAFFS_MAX_SHORT_OP_CACHES 20 - -#define YAFFS_N_TEMP_BUFFERS 4 - -/* We limit the number attempts at sucessfully saving a chunk of data. - * Small-page devices have 32 pages per block; large-page devices have 64. - * Default to something in the order of 5 to 10 blocks worth of chunks. - */ -#define YAFFS_WR_ATTEMPTS (5*64) - -/* Sequence numbers are used in YAFFS2 to determine block allocation order. - * The range is limited slightly to help distinguish bad numbers from good. - * This also allows us to perhaps in the future use special numbers for - * special purposes. - * EFFFFF00 allows the allocation of 8 blocks per second (~1Mbytes) for 15 years, - * and is a larger number than the lifetime of a 2GB device. - */ -#define YAFFS_LOWEST_SEQUENCE_NUMBER 0x00001000 -#define YAFFS_HIGHEST_SEQUENCE_NUMBER 0xEFFFFF00 - -/* ChunkCache is used for short read/write operations.*/ -typedef struct { - struct yaffs_ObjectStruct *object; - int chunkId; - int lastUse; - int dirty; - int nBytes; /* Only valid if the cache is dirty */ - int locked; /* Can't push out or flush while locked. */ -#ifdef CONFIG_YAFFS_YAFFS2 - __u8 *data; -#else - __u8 data[YAFFS_BYTES_PER_CHUNK]; -#endif -} yaffs_ChunkCache; - - - -/* Tags structures in RAM - * NB This uses bitfield. Bitfields should not straddle a u32 boundary otherwise - * the structure size will get blown out. - */ - -#ifndef CONFIG_YAFFS_NO_YAFFS1 -typedef struct { - unsigned chunkId:20; - unsigned serialNumber:2; - unsigned byteCount:10; - unsigned objectId:18; - unsigned ecc:12; - unsigned unusedStuff:2; - -} yaffs_Tags; - -typedef union { - yaffs_Tags asTags; - __u8 asBytes[8]; -} yaffs_TagsUnion; - -#endif - -/* Stuff used for extended tags in YAFFS2 */ - -typedef enum { - YAFFS_ECC_RESULT_UNKNOWN, - YAFFS_ECC_RESULT_NO_ERROR, - YAFFS_ECC_RESULT_FIXED, - YAFFS_ECC_RESULT_UNFIXED -} yaffs_ECCResult; - -typedef enum { - YAFFS_OBJECT_TYPE_UNKNOWN, - YAFFS_OBJECT_TYPE_FILE, - YAFFS_OBJECT_TYPE_SYMLINK, - YAFFS_OBJECT_TYPE_DIRECTORY, - YAFFS_OBJECT_TYPE_HARDLINK, - YAFFS_OBJECT_TYPE_SPECIAL -} yaffs_ObjectType; - -#define YAFFS_OBJECT_TYPE_MAX YAFFS_OBJECT_TYPE_SPECIAL - -typedef struct { - - unsigned validMarker0; - unsigned chunkUsed; /* Status of the chunk: used or unused */ - unsigned objectId; /* If 0 then this is not part of an object (unused) */ - unsigned chunkId; /* If 0 then this is a header, else a data chunk */ - unsigned byteCount; /* Only valid for data chunks */ - - /* The following stuff only has meaning when we read */ - yaffs_ECCResult eccResult; - unsigned blockBad; - - /* YAFFS 1 stuff */ - unsigned chunkDeleted; /* The chunk is marked deleted */ - unsigned serialNumber; /* Yaffs1 2-bit serial number */ - - /* YAFFS2 stuff */ - unsigned sequenceNumber; /* The sequence number of this block */ - - /* Extra info if this is an object header (YAFFS2 only) */ - - unsigned extraHeaderInfoAvailable; /* There is extra info available if this is not zero */ - unsigned extraParentObjectId; /* The parent object */ - unsigned extraIsShrinkHeader; /* Is it a shrink header? */ - unsigned extraShadows; /* Does this shadow another object? */ - - yaffs_ObjectType extraObjectType; /* What object type? */ - - unsigned extraFileLength; /* Length if it is a file */ - unsigned extraEquivalentObjectId; /* Equivalent object Id if it is a hard link */ - - unsigned validMarker1; - -} yaffs_ExtendedTags; - -/* Spare structure for YAFFS1 */ -typedef struct { - __u8 tagByte0; - __u8 tagByte1; - __u8 tagByte2; - __u8 tagByte3; - __u8 pageStatus; /* set to 0 to delete the chunk */ - __u8 blockStatus; - __u8 tagByte4; - __u8 tagByte5; - __u8 ecc1[3]; - __u8 tagByte6; - __u8 tagByte7; - __u8 ecc2[3]; -} yaffs_Spare; - -/*Special structure for passing through to mtd */ -struct yaffs_NANDSpare { - yaffs_Spare spare; - int eccres1; - int eccres2; -}; - -/* Block data in RAM */ - -typedef enum { - YAFFS_BLOCK_STATE_UNKNOWN = 0, - - YAFFS_BLOCK_STATE_SCANNING, - YAFFS_BLOCK_STATE_NEEDS_SCANNING, - /* The block might have something on it (ie it is allocating or full, perhaps empty) - * but it needs to be scanned to determine its true state. - * This state is only valid during yaffs_Scan. - * NB We tolerate empty because the pre-scanner might be incapable of deciding - * However, if this state is returned on a YAFFS2 device, then we expect a sequence number - */ - - YAFFS_BLOCK_STATE_EMPTY, - /* This block is empty */ - - YAFFS_BLOCK_STATE_ALLOCATING, - /* This block is partially allocated. - * At least one page holds valid data. - * This is the one currently being used for page - * allocation. Should never be more than one of these - */ - - YAFFS_BLOCK_STATE_FULL, - /* All the pages in this block have been allocated. - */ - - YAFFS_BLOCK_STATE_DIRTY, - /* All pages have been allocated and deleted. - * Erase me, reuse me. - */ - - YAFFS_BLOCK_STATE_CHECKPOINT, - /* This block is assigned to holding checkpoint data. - */ - - YAFFS_BLOCK_STATE_COLLECTING, - /* This block is being garbage collected */ - - YAFFS_BLOCK_STATE_DEAD - /* This block has failed and is not in use */ -} yaffs_BlockState; - -#define YAFFS_NUMBER_OF_BLOCK_STATES (YAFFS_BLOCK_STATE_DEAD + 1) - - -typedef struct { - - int softDeletions:10; /* number of soft deleted pages */ - int pagesInUse:10; /* number of pages in use */ - yaffs_BlockState blockState:4; /* One of the above block states */ - __u32 needsRetiring:1; /* Data has failed on this block, need to get valid data off */ - /* and retire the block. */ - __u32 skipErasedCheck: 1; /* If this is set we can skip the erased check on this block */ - __u32 gcPrioritise: 1; /* An ECC check or blank check has failed on this block. - It should be prioritised for GC */ - __u32 chunkErrorStrikes:3; /* How many times we've had ecc etc failures on this block and tried to reuse it */ - -#ifdef CONFIG_YAFFS_YAFFS2 - __u32 hasShrinkHeader:1; /* This block has at least one shrink object header */ - __u32 sequenceNumber; /* block sequence number for yaffs2 */ -#endif - -} yaffs_BlockInfo; - -/* -------------------------- Object structure -------------------------------*/ -/* This is the object structure as stored on NAND */ - -typedef struct { - yaffs_ObjectType type; - - /* Apply to everything */ - int parentObjectId; - __u16 sum__NoLongerUsed; /* checksum of name. No longer used */ - YCHAR name[YAFFS_MAX_NAME_LENGTH + 1]; - - /* Thes following apply to directories, files, symlinks - not hard links */ - __u32 yst_mode; /* protection */ - -#ifdef CONFIG_YAFFS_WINCE - __u32 notForWinCE[5]; -#else - __u32 yst_uid; - __u32 yst_gid; - __u32 yst_atime; - __u32 yst_mtime; - __u32 yst_ctime; -#endif - - /* File size applies to files only */ - int fileSize; - - /* Equivalent object id applies to hard links only. */ - int equivalentObjectId; - - /* Alias is for symlinks only. */ - YCHAR alias[YAFFS_MAX_ALIAS_LENGTH + 1]; - - __u32 yst_rdev; /* device stuff for block and char devices (major/min) */ - -#ifdef CONFIG_YAFFS_WINCE - __u32 win_ctime[2]; - __u32 win_atime[2]; - __u32 win_mtime[2]; - __u32 roomToGrow[4]; -#else - __u32 roomToGrow[10]; -#endif - - int shadowsObject; /* This object header shadows the specified object if > 0 */ - - /* isShrink applies to object headers written when we shrink the file (ie resize) */ - __u32 isShrink; - -} yaffs_ObjectHeader; - -/*--------------------------- Tnode -------------------------- */ - -union yaffs_Tnode_union { -#ifdef CONFIG_YAFFS_TNODE_LIST_DEBUG - union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL + 1]; -#else - union yaffs_Tnode_union *internal[YAFFS_NTNODES_INTERNAL]; -#endif -/* __u16 level0[YAFFS_NTNODES_LEVEL0]; */ - -}; - -typedef union yaffs_Tnode_union yaffs_Tnode; - -struct yaffs_TnodeList_struct { - struct yaffs_TnodeList_struct *next; - yaffs_Tnode *tnodes; -}; - -typedef struct yaffs_TnodeList_struct yaffs_TnodeList; - -/*------------------------ Object -----------------------------*/ -/* An object can be one of: - * - a directory (no data, has children links - * - a regular file (data.... not prunes :->). - * - a symlink [symbolic link] (the alias). - * - a hard link - */ - -typedef struct { - __u32 fileSize; - __u32 scannedFileSize; - __u32 shrinkSize; - int topLevel; - yaffs_Tnode *top; -} yaffs_FileStructure; - -typedef struct { - struct list_head children; /* list of child links */ -} yaffs_DirectoryStructure; - -typedef struct { - YCHAR *alias; -} yaffs_SymLinkStructure; - -typedef struct { - struct yaffs_ObjectStruct *equivalentObject; - __u32 equivalentObjectId; -} yaffs_HardLinkStructure; - -typedef union { - yaffs_FileStructure fileVariant; - yaffs_DirectoryStructure directoryVariant; - yaffs_SymLinkStructure symLinkVariant; - yaffs_HardLinkStructure hardLinkVariant; -} yaffs_ObjectVariant; - -struct yaffs_ObjectStruct { - __u8 deleted:1; /* This should only apply to unlinked files. */ - __u8 softDeleted:1; /* it has also been soft deleted */ - __u8 unlinked:1; /* An unlinked file. The file should be in the unlinked directory.*/ - __u8 fake:1; /* A fake object has no presence on NAND. */ - __u8 renameAllowed:1; /* Some objects are not allowed to be renamed. */ - __u8 unlinkAllowed:1; - __u8 dirty:1; /* the object needs to be written to flash */ - __u8 valid:1; /* When the file system is being loaded up, this - * object might be created before the data - * is available (ie. file data records appear before the header). - */ - __u8 lazyLoaded:1; /* This object has been lazy loaded and is missing some detail */ - - __u8 deferedFree:1; /* For Linux kernel. Object is removed from NAND, but is - * still in the inode cache. Free of object is defered. - * until the inode is released. - */ - - __u8 serial; /* serial number of chunk in NAND. Cached here */ - __u16 sum; /* sum of the name to speed searching */ - - struct yaffs_DeviceStruct *myDev; /* The device I'm on */ - - struct list_head hashLink; /* list of objects in this hash bucket */ - - struct list_head hardLinks; /* all the equivalent hard linked objects */ - - /* directory structure stuff */ - /* also used for linking up the free list */ - struct yaffs_ObjectStruct *parent; - struct list_head siblings; - - /* Where's my object header in NAND? */ - int chunkId; - - int nDataChunks; /* Number of data chunks attached to the file. */ - - __u32 objectId; /* the object id value */ - - __u32 yst_mode; - -#ifdef CONFIG_YAFFS_SHORT_NAMES_IN_RAM - YCHAR shortName[YAFFS_SHORT_NAME_LENGTH + 1]; -#endif - -#ifndef __KERNEL__ - __u32 inUse; -#endif - -#ifdef CONFIG_YAFFS_WINCE - __u32 win_ctime[2]; - __u32 win_mtime[2]; - __u32 win_atime[2]; -#else - __u32 yst_uid; - __u32 yst_gid; - __u32 yst_atime; - __u32 yst_mtime; - __u32 yst_ctime; -#endif - - __u32 yst_rdev; - -#ifdef __KERNEL__ - struct inode *myInode; - -#endif - - yaffs_ObjectType variantType; - - yaffs_ObjectVariant variant; - -}; - -typedef struct yaffs_ObjectStruct yaffs_Object; - -struct yaffs_ObjectList_struct { - yaffs_Object *objects; - struct yaffs_ObjectList_struct *next; -}; - -typedef struct yaffs_ObjectList_struct yaffs_ObjectList; - -typedef struct { - struct list_head list; - int count; -} yaffs_ObjectBucket; - - -/* yaffs_CheckpointObject holds the definition of an object as dumped - * by checkpointing. - */ - -typedef struct { - int structType; - __u32 objectId; - __u32 parentId; - int chunkId; - - yaffs_ObjectType variantType:3; - __u8 deleted:1; - __u8 softDeleted:1; - __u8 unlinked:1; - __u8 fake:1; - __u8 renameAllowed:1; - __u8 unlinkAllowed:1; - __u8 serial; - - int nDataChunks; - __u32 fileSizeOrEquivalentObjectId; - -}yaffs_CheckpointObject; - -/*--------------------- Temporary buffers ---------------- - * - * These are chunk-sized working buffers. Each device has a few - */ - -typedef struct { - __u8 *buffer; - int line; /* track from whence this buffer was allocated */ - int maxLine; -} yaffs_TempBuffer; - -/*----------------- Device ---------------------------------*/ - -struct yaffs_DeviceStruct { - struct list_head devList; - const char *name; - - /* Entry parameters set up way early. Yaffs sets up the rest.*/ - int nDataBytesPerChunk; /* Should be a power of 2 >= 512 */ - int nChunksPerBlock; /* does not need to be a power of 2 */ - int nBytesPerSpare; /* spare area size */ - int startBlock; /* Start block we're allowed to use */ - int endBlock; /* End block we're allowed to use */ - int nReservedBlocks; /* We want this tuneable so that we can reduce */ - /* reserved blocks on NOR and RAM. */ - - - /* Stuff used by the shared space checkpointing mechanism */ - /* If this value is zero, then this mechanism is disabled */ - - int nCheckpointReservedBlocks; /* Blocks to reserve for checkpoint data */ - - - - - int nShortOpCaches; /* If <= 0, then short op caching is disabled, else - * the number of short op caches (don't use too many) - */ - - int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */ - - int useNANDECC; /* Flag to decide whether or not to use NANDECC */ - - void *genericDevice; /* Pointer to device context - * On an mtd this holds the mtd pointer. - */ - void *superBlock; - - /* NAND access functions (Must be set before calling YAFFS)*/ - - int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev, - int chunkInNAND, const __u8 * data, - const yaffs_Spare * spare); - int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev, - int chunkInNAND, __u8 * data, - yaffs_Spare * spare); - int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev, - int blockInNAND); - int (*initialiseNAND) (struct yaffs_DeviceStruct * dev); - -#ifdef CONFIG_YAFFS_YAFFS2 - int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev, - int chunkInNAND, const __u8 * data, - const yaffs_ExtendedTags * tags); - int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev, - int chunkInNAND, __u8 * data, - yaffs_ExtendedTags * tags); - int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo); - int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo, - yaffs_BlockState * state, int *sequenceNumber); -#endif - - int isYaffs2; - - /* The removeObjectCallback function must be supplied by OS flavours that - * need it. The Linux kernel does not use this, but yaffs direct does use - * it to implement the faster readdir - */ - void (*removeObjectCallback)(struct yaffs_ObjectStruct *obj); - - /* Callback to mark the superblock dirsty */ - void (*markSuperBlockDirty)(void * superblock); - - int wideTnodesDisabled; /* Set to disable wide tnodes */ - - - /* End of stuff that must be set before initialisation. */ - - /* Checkpoint control. Can be set before or after initialisation */ - __u8 skipCheckpointRead; - __u8 skipCheckpointWrite; - - /* Runtime parameters. Set up by YAFFS. */ - - __u16 chunkGroupBits; /* 0 for devices <= 32MB. else log2(nchunks) - 16 */ - __u16 chunkGroupSize; /* == 2^^chunkGroupBits */ - - /* Stuff to support wide tnodes */ - __u32 tnodeWidth; - __u32 tnodeMask; - - /* Stuff to support various file offses to chunk/offset translations */ - /* "Crumbs" for nDataBytesPerChunk not being a power of 2 */ - __u32 crumbMask; - __u32 crumbShift; - __u32 crumbsPerChunk; - - /* Straight shifting for nDataBytesPerChunk being a power of 2 */ - __u32 chunkShift; - __u32 chunkMask; - - -#ifdef __KERNEL__ - - struct semaphore sem; /* Semaphore for waiting on erasure.*/ - struct semaphore grossLock; /* Gross locking semaphore */ - __u8 *spareBuffer; /* For mtdif2 use. Don't know the size of the buffer - * at compile time so we have to allocate it. - */ - void (*putSuperFunc) (struct super_block * sb); -#endif - - int isMounted; - - int isCheckpointed; - - - /* Stuff to support block offsetting to support start block zero */ - int internalStartBlock; - int internalEndBlock; - int blockOffset; - int chunkOffset; - - - /* Runtime checkpointing stuff */ - int checkpointPageSequence; /* running sequence number of checkpoint pages */ - int checkpointByteCount; - int checkpointByteOffset; - __u8 *checkpointBuffer; - int checkpointOpenForWrite; - int blocksInCheckpoint; - int checkpointCurrentChunk; - int checkpointCurrentBlock; - int checkpointNextBlock; - int *checkpointBlockList; - int checkpointMaxBlocks; - __u32 checkpointSum; - __u32 checkpointXor; - - /* Block Info */ - yaffs_BlockInfo *blockInfo; - __u8 *chunkBits; /* bitmap of chunks in use */ - unsigned blockInfoAlt:1; /* was allocated using alternative strategy */ - unsigned chunkBitsAlt:1; /* was allocated using alternative strategy */ - int chunkBitmapStride; /* Number of bytes of chunkBits per block. - * Must be consistent with nChunksPerBlock. - */ - - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; - int allocationBlockFinder; /* Used to search for next allocation block */ - - /* Runtime state */ - int nTnodesCreated; - yaffs_Tnode *freeTnodes; - int nFreeTnodes; - yaffs_TnodeList *allocatedTnodeList; - - int isDoingGC; - - int nObjectsCreated; - yaffs_Object *freeObjects; - int nFreeObjects; - - yaffs_ObjectList *allocatedObjectList; - - yaffs_ObjectBucket objectBucket[YAFFS_NOBJECT_BUCKETS]; - - int nFreeChunks; - - int currentDirtyChecker; /* Used to find current dirtiest block */ - - __u32 *gcCleanupList; /* objects to delete at the end of a GC. */ - int nonAggressiveSkip; /* GC state/mode */ - - /* Statistcs */ - int nPageWrites; - int nPageReads; - int nBlockErasures; - int nErasureFailures; - int nGCCopies; - int garbageCollections; - int passiveGarbageCollections; - int nRetriedWrites; - int nRetiredBlocks; - int eccFixed; - int eccUnfixed; - int tagsEccFixed; - int tagsEccUnfixed; - int nDeletions; - int nUnmarkedDeletions; - - int hasPendingPrioritisedGCs; /* We think this device might have pending prioritised gcs */ - - /* Special directories */ - yaffs_Object *rootDir; - yaffs_Object *lostNFoundDir; - - /* Buffer areas for storing data to recover from write failures TODO - * __u8 bufferedData[YAFFS_CHUNKS_PER_BLOCK][YAFFS_BYTES_PER_CHUNK]; - * yaffs_Spare bufferedSpare[YAFFS_CHUNKS_PER_BLOCK]; - */ - - int bufferedBlock; /* Which block is buffered here? */ - int doingBufferedBlockRewrite; - - yaffs_ChunkCache *srCache; - int srLastUse; - - int cacheHits; - - /* Stuff for background deletion and unlinked files.*/ - yaffs_Object *unlinkedDir; /* Directory where unlinked and deleted files live. */ - yaffs_Object *deletedDir; /* Directory where deleted objects are sent to disappear. */ - yaffs_Object *unlinkedDeletion; /* Current file being background deleted.*/ - int nDeletedFiles; /* Count of files awaiting deletion;*/ - int nUnlinkedFiles; /* Count of unlinked files. */ - int nBackgroundDeletions; /* Count of background deletions. */ - - - yaffs_TempBuffer tempBuffer[YAFFS_N_TEMP_BUFFERS]; - int maxTemp; - int unmanagedTempAllocations; - int unmanagedTempDeallocations; - - /* yaffs2 runtime stuff */ - unsigned sequenceNumber; /* Sequence number of currently allocating block */ - unsigned oldestDirtySequence; - -}; - -typedef struct yaffs_DeviceStruct yaffs_Device; - -/* The static layout of bllock usage etc is stored in the super block header */ -typedef struct { - int StructType; - int version; - int checkpointStartBlock; - int checkpointEndBlock; - int startBlock; - int endBlock; - int rfu[100]; -} yaffs_SuperBlockHeader; - -/* The CheckpointDevice structure holds the device information that changes at runtime and - * must be preserved over unmount/mount cycles. - */ -typedef struct { - int structType; - int nErasedBlocks; - int allocationBlock; /* Current block being allocated off */ - __u32 allocationPage; - int nFreeChunks; - - int nDeletedFiles; /* Count of files awaiting deletion;*/ - int nUnlinkedFiles; /* Count of unlinked files. */ - int nBackgroundDeletions; /* Count of background deletions. */ - - /* yaffs2 runtime stuff */ - unsigned sequenceNumber; /* Sequence number of currently allocating block */ - unsigned oldestDirtySequence; - -} yaffs_CheckpointDevice; - - -typedef struct { - int structType; - __u32 magic; - __u32 version; - __u32 head; -} yaffs_CheckpointValidity; - -/* Function to manipulate block info */ -static Y_INLINE yaffs_BlockInfo *yaffs_GetBlockInfo(yaffs_Device * dev, int blk) -{ - if (blk < dev->internalStartBlock || blk > dev->internalEndBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>> yaffs: getBlockInfo block %d is not valid" TENDSTR), - blk)); - YBUG(); - } - return &dev->blockInfo[blk - dev->internalStartBlock]; -} - -/*----------------------- YAFFS Functions -----------------------*/ - -int yaffs_GutsInitialise(yaffs_Device * dev); -void yaffs_Deinitialise(yaffs_Device * dev); - -int yaffs_GetNumberOfFreeChunks(yaffs_Device * dev); - -int yaffs_RenameObject(yaffs_Object * oldDir, const YCHAR * oldName, - yaffs_Object * newDir, const YCHAR * newName); - -int yaffs_Unlink(yaffs_Object * dir, const YCHAR * name); -int yaffs_DeleteFile(yaffs_Object * obj); - -int yaffs_GetObjectName(yaffs_Object * obj, YCHAR * name, int buffSize); -int yaffs_GetObjectFileLength(yaffs_Object * obj); -int yaffs_GetObjectInode(yaffs_Object * obj); -unsigned yaffs_GetObjectType(yaffs_Object * obj); -int yaffs_GetObjectLinkCount(yaffs_Object * obj); - -int yaffs_SetAttributes(yaffs_Object * obj, struct iattr *attr); -int yaffs_GetAttributes(yaffs_Object * obj, struct iattr *attr); - -/* File operations */ -int yaffs_ReadDataFromFile(yaffs_Object * obj, __u8 * buffer, loff_t offset, - int nBytes); -int yaffs_WriteDataToFile(yaffs_Object * obj, const __u8 * buffer, loff_t offset, - int nBytes, int writeThrough); -int yaffs_ResizeFile(yaffs_Object * obj, loff_t newSize); - -yaffs_Object *yaffs_MknodFile(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid); -int yaffs_FlushFile(yaffs_Object * obj, int updateTime); - -/* Flushing and checkpointing */ -void yaffs_FlushEntireDeviceCache(yaffs_Device *dev); - -int yaffs_CheckpointSave(yaffs_Device *dev); -int yaffs_CheckpointRestore(yaffs_Device *dev); - -/* Directory operations */ -yaffs_Object *yaffs_MknodDirectory(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid); -yaffs_Object *yaffs_FindObjectByName(yaffs_Object * theDir, const YCHAR * name); -int yaffs_ApplyToDirectoryChildren(yaffs_Object * theDir, - int (*fn) (yaffs_Object *)); - -yaffs_Object *yaffs_FindObjectByNumber(yaffs_Device * dev, __u32 number); - -/* Link operations */ -yaffs_Object *yaffs_Link(yaffs_Object * parent, const YCHAR * name, - yaffs_Object * equivalentObject); - -yaffs_Object *yaffs_GetEquivalentObject(yaffs_Object * obj); - -/* Symlink operations */ -yaffs_Object *yaffs_MknodSymLink(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid, - const YCHAR * alias); -YCHAR *yaffs_GetSymlinkAlias(yaffs_Object * obj); - -/* Special inodes (fifos, sockets and devices) */ -yaffs_Object *yaffs_MknodSpecial(yaffs_Object * parent, const YCHAR * name, - __u32 mode, __u32 uid, __u32 gid, __u32 rdev); - -/* Special directories */ -yaffs_Object *yaffs_Root(yaffs_Device * dev); -yaffs_Object *yaffs_LostNFound(yaffs_Device * dev); - -#ifdef CONFIG_YAFFS_WINCE -/* CONFIG_YAFFS_WINCE special stuff */ -void yfsd_WinFileTimeNow(__u32 target[2]); -#endif - -#ifdef __KERNEL__ - -void yaffs_HandleDeferedFree(yaffs_Object * obj); -#endif - -/* Debug dump */ -int yaffs_DumpObject(yaffs_Object * obj); - -void yaffs_GutsTest(yaffs_Device * dev); - -/* A few useful functions */ -void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); -void yaffs_DeleteChunk(yaffs_Device * dev, int chunkId, int markNAND, int lyn); -int yaffs_CheckFF(__u8 * buffer, int nBytes); -void yaffs_HandleChunkError(yaffs_Device *dev, yaffs_BlockInfo *bi); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif.c deleted file mode 100644 index 466e5a4..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_mtdif_c_version = - "$Id: yaffs_mtdif.c,v 1.19 2007-02-14 01:09:06 wookey Exp $"; - -#include "yportenv.h" - - -#include "yaffs_mtdif.h" - -#include "linux/mtd/mtd.h" -#include "linux/types.h" -#include "linux/time.h" -#include "linux/mtd/nand.h" - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)) -static struct nand_oobinfo yaffs_oobinfo = { - .useecc = 1, - .eccbytes = 6, - .eccpos = {8, 9, 10, 13, 14, 15} -}; - -static struct nand_oobinfo yaffs_noeccinfo = { - .useecc = 0, -}; -#endif - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) -static inline void translate_spare2oob(const yaffs_Spare *spare, __u8 *oob) -{ - oob[0] = spare->tagByte0; - oob[1] = spare->tagByte1; - oob[2] = spare->tagByte2; - oob[3] = spare->tagByte3; - oob[4] = spare->tagByte4; - oob[5] = spare->tagByte5 & 0x3f; - oob[5] |= spare->blockStatus == 'Y' ? 0: 0x80; - oob[5] |= spare->pageStatus == 0 ? 0: 0x40; - oob[6] = spare->tagByte6; - oob[7] = spare->tagByte7; -} - -static inline void translate_oob2spare(yaffs_Spare *spare, __u8 *oob) -{ - struct yaffs_NANDSpare *nspare = (struct yaffs_NANDSpare *)spare; - spare->tagByte0 = oob[0]; - spare->tagByte1 = oob[1]; - spare->tagByte2 = oob[2]; - spare->tagByte3 = oob[3]; - spare->tagByte4 = oob[4]; - spare->tagByte5 = oob[5] == 0xff ? 0xff : oob[5] & 0x3f; - spare->blockStatus = oob[5] & 0x80 ? 0xff : 'Y'; - spare->pageStatus = oob[5] & 0x40 ? 0xff : 0; - spare->ecc1[0] = spare->ecc1[1] = spare->ecc1[2] = 0xff; - spare->tagByte6 = oob[6]; - spare->tagByte7 = oob[7]; - spare->ecc2[0] = spare->ecc2[1] = spare->ecc2[2] = 0xff; - - nspare->eccres1 = nspare->eccres2 = 0; /* FIXME */ -} -#endif - -int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, const yaffs_Spare * spare) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - struct mtd_oob_ops ops; -#endif - size_t dummy; - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - __u8 spareAsBytes[8]; /* OOB */ - - if (data && !spare) - retval = mtd->write(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data); - else if (spare) { - if (dev->useNANDECC) { - translate_spare2oob(spare, spareAsBytes); - ops.mode = MTD_OOB_AUTO; - ops.ooblen = 8; /* temp hack */ - } else { - ops.mode = MTD_OOB_RAW; - ops.ooblen = YAFFS_BYTES_PER_SPARE; - } - ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen; - ops.datbuf = (u8 *)data; - ops.ooboffs = 0; - ops.oobbuf = spareAsBytes; - retval = mtd->write_oob(mtd, addr, &ops); - } -#else - __u8 *spareAsBytes = (__u8 *) spare; - - if (data && spare) { - if (dev->useNANDECC) - retval = - mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, spareAsBytes, - &yaffs_oobinfo); - else - retval = - mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, spareAsBytes, - &yaffs_noeccinfo); - } else { - if (data) - retval = - mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); - if (spare) - retval = - mtd->write_oob(mtd, addr, YAFFS_BYTES_PER_SPARE, - &dummy, spareAsBytes); - } -#endif - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, - yaffs_Spare * spare) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - struct mtd_oob_ops ops; -#endif - size_t dummy; - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - __u8 spareAsBytes[8]; /* OOB */ - - if (data && !spare) - retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data); - else if (spare) { - if (dev->useNANDECC) { - ops.mode = MTD_OOB_AUTO; - ops.ooblen = 8; /* temp hack */ - } else { - ops.mode = MTD_OOB_RAW; - ops.ooblen = YAFFS_BYTES_PER_SPARE; - } - ops.len = data ? dev->nDataBytesPerChunk : ops.ooblen; - ops.datbuf = data; - ops.ooboffs = 0; - ops.oobbuf = spareAsBytes; - retval = mtd->read_oob(mtd, addr, &ops); - if (dev->useNANDECC) - translate_oob2spare(spare, spareAsBytes); - } -#else - __u8 *spareAsBytes = (__u8 *) spare; - - if (data && spare) { - if (dev->useNANDECC) { - /* Careful, this call adds 2 ints */ - /* to the end of the spare data. Calling function */ - /* should allocate enough memory for spare, */ - /* i.e. [YAFFS_BYTES_PER_SPARE+2*sizeof(int)]. */ - retval = - mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, spareAsBytes, - &yaffs_oobinfo); - } else { - retval = - mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, spareAsBytes, - &yaffs_noeccinfo); - } - } else { - if (data) - retval = - mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); - if (spare) - retval = - mtd->read_oob(mtd, addr, YAFFS_BYTES_PER_SPARE, - &dummy, spareAsBytes); - } -#endif - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); - __u32 addr = - ((loff_t) blockNumber) * dev->nDataBytesPerChunk - * dev->nChunksPerBlock; - struct erase_info ei; - int retval = 0; - - ei.mtd = mtd; - ei.addr = addr; - ei.len = dev->nDataBytesPerChunk * dev->nChunksPerBlock; - ei.time = 1000; - ei.retries = 2; - ei.callback = NULL; - ei.priv = (u_long) dev; - - /* Todo finish off the ei if required */ - - sema_init(&dev->sem, 0); - - retval = mtd->erase(mtd, &ei); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd_InitialiseNAND(yaffs_Device * dev) -{ - return YAFFS_OK; -} - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif.h deleted file mode 100644 index 317600c..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif.h +++ /dev/null @@ -1,27 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_MTDIF_H__ -#define __YAFFS_MTDIF_H__ - -#include "yaffs_guts.h" - -int nandmtd_WriteChunkToNAND(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, const yaffs_Spare * spare); -int nandmtd_ReadChunkFromNAND(yaffs_Device * dev, int chunkInNAND, __u8 * data, - yaffs_Spare * spare); -int nandmtd_EraseBlockInNAND(yaffs_Device * dev, int blockNumber); -int nandmtd_InitialiseNAND(yaffs_Device * dev); -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1-compat.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1-compat.c deleted file mode 100644 index 6a376f1..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1-compat.c +++ /dev/null @@ -1,434 +0,0 @@ -From ian@brightstareng.com Fri May 18 15:06:49 2007 -From ian@brightstareng.com Fri May 18 15:08:21 2007 -Received: from 206.173.66.57.ptr.us.xo.net ([206.173.66.57] helo=zebra.brightstareng.com) - by apollo.linkchoose.co.uk with esmtp (Exim 4.60) - (envelope-from <ian@brightstareng.com>) - id 1Hp380-00011e-T6 - for david.goodenough@linkchoose.co.uk; Fri, 18 May 2007 15:08:21 +0100 -Received: from localhost (localhost.localdomain [127.0.0.1]) - by zebra.brightstareng.com (Postfix) with ESMTP - id 4819F28C004; Fri, 18 May 2007 10:07:49 -0400 (EDT) -Received: from zebra.brightstareng.com ([127.0.0.1]) - by localhost (zebra [127.0.0.1]) (amavisd-new, port 10024) with ESMTP - id 05328-06; Fri, 18 May 2007 10:07:16 -0400 (EDT) -Received: from pippin (unknown [192.168.1.25]) - by zebra.brightstareng.com (Postfix) with ESMTP - id 8BEF528C1BC; Fri, 18 May 2007 10:06:53 -0400 (EDT) -From: Ian McDonnell <ian@brightstareng.com> -To: David Goodenough <david.goodenough@linkchoose.co.uk> -Subject: Re: something tested this time -- yaffs_mtdif1-compat.c -Date: Fri, 18 May 2007 10:06:49 -0400 -User-Agent: KMail/1.9.1 -References: <200705142207.06909.ian@brightstareng.com> <200705171131.53536.ian@brightstareng.com> <200705181334.32166.david.goodenough@linkchoose.co.uk> -In-Reply-To: <200705181334.32166.david.goodenough@linkchoose.co.uk> -Cc: Andrea Conti <alyf@alyf.net>, - Charles Manning <manningc2@actrix.gen.nz> -MIME-Version: 1.0 -Content-Type: Multipart/Mixed; - boundary="Boundary-00=_5LbTGmt62YoutxM" -Message-Id: <200705181006.49860.ian@brightstareng.com> -X-Virus-Scanned: by amavisd-new at brightstareng.com -Status: R -X-Status: NT -X-KMail-EncryptionState: -X-KMail-SignatureState: -X-KMail-MDN-Sent: - ---Boundary-00=_5LbTGmt62YoutxM -Content-Type: text/plain; - charset="iso-8859-15" -Content-Transfer-Encoding: 7bit -Content-Disposition: inline - -David, Andrea, - -On Friday 18 May 2007 08:34, you wrote: -> Yea team. With this fix in place (I put it in the wrong place -> at first) I can now mount and ls the Yaffs partition without -> an error messages! - -Good news! - -Attached is a newer yaffs_mtdif1.c with a bandaid to help the -2.6.18 and 2.6.19 versions of MTD not trip on the oob read. -See the LINUX_VERSION_CODE conditional in -nandmtd1_ReadChunkWithTagsFromNAND. - --imcd - ---Boundary-00=_5LbTGmt62YoutxM -Content-Type: text/x-csrc; - charset="iso-8859-15"; - name="yaffs_mtdif1.c" -Content-Transfer-Encoding: 7bit -Content-Disposition: attachment; - filename="yaffs_mtdif1.c" - -/* - * YAFFS: Yet another FFS. A NAND-flash specific file system. - * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND. - * - * Copyright (C) 2002 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * This module provides the interface between yaffs_nand.c and the - * MTD API. This version is used when the MTD interface supports the - * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17, - * and we have small-page NAND device. - * - * These functions are invoked via function pointers in yaffs_nand.c. - * This replaces functionality provided by functions in yaffs_mtdif.c - * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are - * called in yaffs_mtdif.c when the function pointers are NULL. - * We assume the MTD layer is performing ECC (useNANDECC is true). - */ - -#include "yportenv.h" -#include "yaffs_guts.h" -#include "yaffs_packedtags1.h" -#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC - -#include "linux/kernel.h" -#include "linux/version.h" -#include "linux/types.h" -#include "linux/mtd/mtd.h" - -/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - -const char *yaffs_mtdif1_c_version = "$Id$"; - -#ifndef CONFIG_YAFFS_9BYTE_TAGS -# define YTAG1_SIZE 8 -#else -# define YTAG1_SIZE 9 -#endif - -#if 0 -/* Use the following nand_ecclayout with MTD when using - * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout. - * If you have existing Yaffs images and the byte order differs from this, - * adjust 'oobfree' to match your existing Yaffs data. - * - * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the - * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to - * the 9th byte. - * - * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5 - * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P - * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus - * byte and B is the small-page bad-block indicator byte. - */ -static struct nand_ecclayout nand_oob_16 = { - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15 }, - .oobavail = 9, - .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } -}; -#endif - -/* Write a chunk (page) of data to NAND. - * - * Caller always provides ExtendedTags data which are converted to a more - * compact (packed) form for storage in NAND. A mini-ECC runs over the - * contents of the tags meta-data; used to valid the tags when read. - * - * - Pack ExtendedTags to PackedTags1 form - * - Compute mini-ECC for PackedTags1 - * - Write data and packed tags to NAND. - * - * Note: Due to the use of the PackedTags1 meta-data which does not include - * a full sequence number (as found in the larger PackedTags2 form) it is - * necessary for Yaffs to re-write a chunk/page (just once) to mark it as - * discarded and dirty. This is not ideal: newer NAND parts are supposed - * to be written just once. When Yaffs performs this operation, this - * function is called with a NULL data pointer -- calling MTD write_oob - * without data is valid usage (2.6.17). - * - * Any underlying MTD error results in YAFFS_FAIL. - * Returns YAFFS_OK or YAFFS_FAIL. - */ -int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) -{ - struct mtd_info * mtd = dev->genericDevice; - int chunkBytes = dev->nDataBytesPerChunk; - loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; - struct mtd_oob_ops ops; - yaffs_PackedTags1 pt1; - int retval; - - /* we assume that PackedTags1 and yaffs_Tags are compatible */ - compile_time_assertion(sizeof(yaffs_PackedTags1) == 12); - compile_time_assertion(sizeof(yaffs_Tags) == 8); - - yaffs_PackTags1(&pt1, etags); - yaffs_CalcTagsECC((yaffs_Tags *)&pt1); - - /* When deleting a chunk, the upper layer provides only skeletal - * etags, one with chunkDeleted set. However, we need to update the - * tags, not erase them completely. So we use the NAND write property - * that only zeroed-bits stick and set tag bytes to all-ones and - * zero just the (not) deleted bit. - */ -#ifndef CONFIG_YAFFS_9BYTE_TAGS - if (etags->chunkDeleted) { - memset(&pt1, 0xff, 8); - /* clear delete status bit to indicate deleted */ - pt1.deleted = 0; - } -#else - ((__u8 *)&pt1)[8] = 0xff; - if (etags->chunkDeleted) { - memset(&pt1, 0xff, 8); - /* zero pageStatus byte to indicate deleted */ - ((__u8 *)&pt1)[8] = 0; - } -#endif - - memset(&ops, 0, sizeof(ops)); - ops.mode = MTD_OOB_AUTO; - ops.len = (data) ? chunkBytes : 0; - ops.ooblen = YTAG1_SIZE; - ops.datbuf = (__u8 *)data; - ops.oobbuf = (__u8 *)&pt1; - - retval = mtd->write_oob(mtd, addr, &ops); - if (retval) { - yaffs_trace(YAFFS_TRACE_MTD, - "write_oob failed, chunk %d, mtd error %d\n", - chunkInNAND, retval); - } - return retval ? YAFFS_FAIL : YAFFS_OK; -} - -/* Return with empty ExtendedTags but add eccResult. - */ -static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) -{ - if (etags) { - memset(etags, 0, sizeof(*etags)); - etags->eccResult = eccResult; - } - return retval; -} - -/* Read a chunk (page) from NAND. - * - * Caller expects ExtendedTags data to be usable even on error; that is, - * all members except eccResult and blockBad are zeroed. - * - * - Check ECC results for data (if applicable) - * - Check for blank/erased block (return empty ExtendedTags if blank) - * - Check the PackedTags1 mini-ECC (correct if necessary/possible) - * - Convert PackedTags1 to ExtendedTags - * - Update eccResult and blockBad members to refect state. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ -int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, - int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) -{ - struct mtd_info * mtd = dev->genericDevice; - int chunkBytes = dev->nDataBytesPerChunk; - loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; - int eccres = YAFFS_ECC_RESULT_NO_ERROR; - struct mtd_oob_ops ops; - yaffs_PackedTags1 pt1; - int retval; - int deleted; - - memset(&ops, 0, sizeof(ops)); - ops.mode = MTD_OOB_AUTO; - ops.len = (data) ? chunkBytes : 0; - ops.ooblen = YTAG1_SIZE; - ops.datbuf = data; - ops.oobbuf = (__u8 *)&pt1; - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) - /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; - * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. - */ - ops.len = (ops.datbuf) ? ops.len : ops.ooblen; -#endif - /* Read page and oob using MTD. - * Check status and determine ECC result. - */ - retval = mtd->read_oob(mtd, addr, &ops); - if (retval) { - yaffs_trace(YAFFS_TRACE_MTD, - "read_oob failed, chunk %d, mtd error %d\n", - chunkInNAND, retval); - } - - switch (retval) { - case 0: - /* no error */ - break; - - case -EUCLEAN: - /* MTD's ECC fixed the data */ - eccres = YAFFS_ECC_RESULT_FIXED; - dev->eccFixed++; - break; - - case -EBADMSG: - /* MTD's ECC could not fix the data */ - dev->eccUnfixed++; - /* fall into... */ - default: - rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0); - etags->blockBad = (mtd->block_isbad)(mtd, addr); - return YAFFS_FAIL; - } - - /* Check for a blank/erased chunk. - */ - if (yaffs_CheckFF((__u8 *)&pt1, 8)) { - /* when blank, upper layers want eccResult to be <= NO_ERROR */ - return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK); - } - -#ifndef CONFIG_YAFFS_9BYTE_TAGS - /* Read deleted status (bit) then return it to it's non-deleted - * state before performing tags mini-ECC check. pt1.deleted is - * inverted. - */ - deleted = !pt1.deleted; - pt1.deleted = 1; -#else - (void) deleted; /* not used */ -#endif - - /* Check the packed tags mini-ECC and correct if necessary/possible. - */ - retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); - switch (retval) { - case 0: - /* no tags error, use MTD result */ - break; - case 1: - /* recovered tags-ECC error */ - dev->tagsEccFixed++; - eccres = YAFFS_ECC_RESULT_FIXED; - break; - default: - /* unrecovered tags-ECC error */ - dev->tagsEccUnfixed++; - return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL); - } - - /* Unpack the tags to extended form and set ECC result. - * [set shouldBeFF just to keep yaffs_UnpackTags1 happy] - */ - pt1.shouldBeFF = 0xFFFFFFFF; - yaffs_UnpackTags1(etags, &pt1); - etags->eccResult = eccres; - - /* Set deleted state. - */ -#ifndef CONFIG_YAFFS_9BYTE_TAGS - etags->chunkDeleted = deleted; -#else - etags->chunkDeleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7); -#endif - return YAFFS_OK; -} - -/* Mark a block bad. - * - * This is a persistant state. - * Use of this function should be rare. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ -int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) -{ - struct mtd_info * mtd = dev->genericDevice; - int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; - int retval; - - yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); - - retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); - return (retval) ? YAFFS_FAIL : YAFFS_OK; -} - -/* Check any MTD prerequists. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ -static int nandmtd1_TestPrerequists(struct mtd_info * mtd) -{ - /* 2.6.18 has mtd->ecclayout->oobavail */ - /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ - int oobavail = mtd->ecclayout->oobavail; - - if (oobavail < YTAG1_SIZE) { - yaffs_trace(YAFFS_TRACE_ERROR, - "mtd device has only %d bytes for tags, need %d", - oobavail, YTAG1_SIZE); - return YAFFS_FAIL; - } - return YAFFS_OK; -} - -/* Query for the current state of a specific block. - * - * Examine the tags of the first chunk of the block and return the state: - * - YAFFS_BLOCK_STATE_DEAD, the block is marked bad - * - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use - * - YAFFS_BLOCK_STATE_EMPTY, the block is clean - * - * Always returns YAFFS_OK. - */ -int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * pState, int *pSequenceNumber) -{ - struct mtd_info * mtd = dev->genericDevice; - int chunkNo = blockNo * dev->nChunksPerBlock; - yaffs_ExtendedTags etags; - int state = YAFFS_BLOCK_STATE_DEAD; - int seqnum = 0; - int retval; - - /* We don't yet have a good place to test for MTD config prerequists. - * Do it here as we are called during the initial scan. - */ - if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { - return YAFFS_FAIL; - } - - retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); - if (etags.blockBad) { - yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, - "block %d is marked bad", blockNo); - state = YAFFS_BLOCK_STATE_DEAD; - } - else if (etags.chunkUsed) { - state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - seqnum = etags.sequenceNumber; - } - else { - state = YAFFS_BLOCK_STATE_EMPTY; - } - - *pState = state; - *pSequenceNumber = seqnum; - - /* query always succeeds */ - return YAFFS_OK; -} - -#endif /*KERNEL_VERSION*/ - ---Boundary-00=_5LbTGmt62YoutxM-- - - - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1.c deleted file mode 100644 index 36d5ade..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1.c +++ /dev/null @@ -1,363 +0,0 @@ -/* - * YAFFS: Yet another FFS. A NAND-flash specific file system. - * yaffs_mtdif1.c NAND mtd interface functions for small-page NAND. - * - * Copyright (C) 2002 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * This module provides the interface between yaffs_nand.c and the - * MTD API. This version is used when the MTD interface supports the - * 'mtd_oob_ops' style calls to read_oob and write_oob, circa 2.6.17, - * and we have small-page NAND device. - * - * These functions are invoked via function pointers in yaffs_nand.c. - * This replaces functionality provided by functions in yaffs_mtdif.c - * and the yaffs_TagsCompatability functions in yaffs_tagscompat.c that are - * called in yaffs_mtdif.c when the function pointers are NULL. - * We assume the MTD layer is performing ECC (useNANDECC is true). - */ - -#include "yportenv.h" -#include "yaffs_guts.h" -#include "yaffs_packedtags1.h" -#include "yaffs_tagscompat.h" // for yaffs_CalcTagsECC - -#include "linux/kernel.h" -#include "linux/version.h" -#include "linux/types.h" -#include "linux/mtd/mtd.h" - -/* Don't compile this module if we don't have MTD's mtd_oob_ops interface */ -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - -const char *yaffs_mtdif1_c_version = "$Id: yaffs_mtdif1.c,v 1.3 2007/05/15 20:16:11 ian Exp $"; - -#ifndef CONFIG_YAFFS_9BYTE_TAGS -# define YTAG1_SIZE 8 -#else -# define YTAG1_SIZE 9 -#endif - -#if 0 -/* Use the following nand_ecclayout with MTD when using - * CONFIG_YAFFS_9BYTE_TAGS and the older on-NAND tags layout. - * If you have existing Yaffs images and the byte order differs from this, - * adjust 'oobfree' to match your existing Yaffs data. - * - * This nand_ecclayout scatters/gathers to/from the old-yaffs layout with the - * pageStatus byte (at NAND spare offset 4) scattered/gathered from/to - * the 9th byte. - * - * Old-style on-NAND format: T0,T1,T2,T3,P,B,T4,T5,E0,E1,E2,T6,T7,E3,E4,E5 - * We have/need PackedTags1 plus pageStatus: T0,T1,T2,T3,T4,T5,T6,T7,P - * where Tn are the tag bytes, En are MTD's ECC bytes, P is the pageStatus - * byte and B is the small-page bad-block indicator byte. - */ -static struct nand_ecclayout nand_oob_16 = { - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15 }, - .oobavail = 9, - .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } } -}; -#endif - -/* Write a chunk (page) of data to NAND. - * - * Caller always provides ExtendedTags data which are converted to a more - * compact (packed) form for storage in NAND. A mini-ECC runs over the - * contents of the tags meta-data; used to valid the tags when read. - * - * - Pack ExtendedTags to PackedTags1 form - * - Compute mini-ECC for PackedTags1 - * - Write data and packed tags to NAND. - * - * Note: Due to the use of the PackedTags1 meta-data which does not include - * a full sequence number (as found in the larger PackedTags2 form) it is - * necessary for Yaffs to re-write a chunk/page (just once) to mark it as - * discarded and dirty. This is not ideal: newer NAND parts are supposed - * to be written just once. When Yaffs performs this operation, this - * function is called with a NULL data pointer -- calling MTD write_oob - * without data is valid usage (2.6.17). - * - * Any underlying MTD error results in YAFFS_FAIL. - * Returns YAFFS_OK or YAFFS_FAIL. - */ -int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device *dev, - int chunkInNAND, const __u8 * data, const yaffs_ExtendedTags * etags) -{ - struct mtd_info * mtd = dev->genericDevice; - int chunkBytes = dev->nDataBytesPerChunk; - loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; - struct mtd_oob_ops ops; - yaffs_PackedTags1 pt1; - int retval; - - /* we assume that PackedTags1 and yaffs_Tags are compatible */ - compile_time_assertion(sizeof(yaffs_PackedTags1) == 12); - compile_time_assertion(sizeof(yaffs_Tags) == 8); - - dev->nPageWrites++; - - yaffs_PackTags1(&pt1, etags); - yaffs_CalcTagsECC((yaffs_Tags *)&pt1); - - /* When deleting a chunk, the upper layer provides only skeletal - * etags, one with chunkDeleted set. However, we need to update the - * tags, not erase them completely. So we use the NAND write property - * that only zeroed-bits stick and set tag bytes to all-ones and - * zero just the (not) deleted bit. - */ -#ifndef CONFIG_YAFFS_9BYTE_TAGS - if (etags->chunkDeleted) { - memset(&pt1, 0xff, 8); - /* clear delete status bit to indicate deleted */ - pt1.deleted = 0; - } -#else - ((__u8 *)&pt1)[8] = 0xff; - if (etags->chunkDeleted) { - memset(&pt1, 0xff, 8); - /* zero pageStatus byte to indicate deleted */ - ((__u8 *)&pt1)[8] = 0; - } -#endif - - memset(&ops, 0, sizeof(ops)); - ops.mode = MTD_OOB_AUTO; - ops.len = (data) ? chunkBytes : 0; - ops.ooblen = YTAG1_SIZE; - ops.datbuf = (__u8 *)data; - ops.oobbuf = (__u8 *)&pt1; - - retval = mtd->write_oob(mtd, addr, &ops); - if (retval) { - yaffs_trace(YAFFS_TRACE_MTD, - "write_oob failed, chunk %d, mtd error %d\n", - chunkInNAND, retval); - } - return retval ? YAFFS_FAIL : YAFFS_OK; -} - -/* Return with empty ExtendedTags but add eccResult. - */ -static int rettags(yaffs_ExtendedTags * etags, int eccResult, int retval) -{ - if (etags) { - memset(etags, 0, sizeof(*etags)); - etags->eccResult = eccResult; - } - return retval; -} - -/* Read a chunk (page) from NAND. - * - * Caller expects ExtendedTags data to be usable even on error; that is, - * all members except eccResult and blockBad are zeroed. - * - * - Check ECC results for data (if applicable) - * - Check for blank/erased block (return empty ExtendedTags if blank) - * - Check the PackedTags1 mini-ECC (correct if necessary/possible) - * - Convert PackedTags1 to ExtendedTags - * - Update eccResult and blockBad members to refect state. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ -int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device *dev, - int chunkInNAND, __u8 * data, yaffs_ExtendedTags * etags) -{ - struct mtd_info * mtd = dev->genericDevice; - int chunkBytes = dev->nDataBytesPerChunk; - loff_t addr = ((loff_t)chunkInNAND) * chunkBytes; - int eccres = YAFFS_ECC_RESULT_NO_ERROR; - struct mtd_oob_ops ops; - yaffs_PackedTags1 pt1; - int retval; - int deleted; - - dev->nPageReads++; - - memset(&ops, 0, sizeof(ops)); - ops.mode = MTD_OOB_AUTO; - ops.len = (data) ? chunkBytes : 0; - ops.ooblen = YTAG1_SIZE; - ops.datbuf = data; - ops.oobbuf = (__u8 *)&pt1; - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)) - /* In MTD 2.6.18 to 2.6.19 nand_base.c:nand_do_read_oob() has a bug; - * help it out with ops.len = ops.ooblen when ops.datbuf == NULL. - */ - ops.len = (ops.datbuf) ? ops.len : ops.ooblen; -#endif - /* Read page and oob using MTD. - * Check status and determine ECC result. - */ - retval = mtd->read_oob(mtd, addr, &ops); - if (retval) { - yaffs_trace(YAFFS_TRACE_MTD, - "read_oob failed, chunk %d, mtd error %d\n", - chunkInNAND, retval); - } - - switch (retval) { - case 0: - /* no error */ - break; - - case -EUCLEAN: - /* MTD's ECC fixed the data */ - eccres = YAFFS_ECC_RESULT_FIXED; - dev->eccFixed++; - break; - - case -EBADMSG: - /* MTD's ECC could not fix the data */ - dev->eccUnfixed++; - /* fall into... */ - default: - rettags(etags, YAFFS_ECC_RESULT_UNFIXED, 0); - etags->blockBad = (mtd->block_isbad)(mtd, addr); - return YAFFS_FAIL; - } - - /* Check for a blank/erased chunk. - */ - if (yaffs_CheckFF((__u8 *)&pt1, 8)) { - /* when blank, upper layers want eccResult to be <= NO_ERROR */ - return rettags(etags, YAFFS_ECC_RESULT_NO_ERROR, YAFFS_OK); - } - -#ifndef CONFIG_YAFFS_9BYTE_TAGS - /* Read deleted status (bit) then return it to it's non-deleted - * state before performing tags mini-ECC check. pt1.deleted is - * inverted. - */ - deleted = !pt1.deleted; - pt1.deleted = 1; -#else - deleted = (yaffs_CountBits(((__u8 *)&pt1)[8]) < 7); -#endif - - /* Check the packed tags mini-ECC and correct if necessary/possible. - */ - retval = yaffs_CheckECCOnTags((yaffs_Tags *)&pt1); - switch (retval) { - case 0: - /* no tags error, use MTD result */ - break; - case 1: - /* recovered tags-ECC error */ - dev->tagsEccFixed++; - if (eccres == YAFFS_ECC_RESULT_NO_ERROR) - eccres = YAFFS_ECC_RESULT_FIXED; - break; - default: - /* unrecovered tags-ECC error */ - dev->tagsEccUnfixed++; - return rettags(etags, YAFFS_ECC_RESULT_UNFIXED, YAFFS_FAIL); - } - - /* Unpack the tags to extended form and set ECC result. - * [set shouldBeFF just to keep yaffs_UnpackTags1 happy] - */ - pt1.shouldBeFF = 0xFFFFFFFF; - yaffs_UnpackTags1(etags, &pt1); - etags->eccResult = eccres; - - /* Set deleted state */ - etags->chunkDeleted = deleted; - return YAFFS_OK; -} - -/* Mark a block bad. - * - * This is a persistant state. - * Use of this function should be rare. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ -int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) -{ - struct mtd_info * mtd = dev->genericDevice; - int blocksize = dev->nChunksPerBlock * dev->nDataBytesPerChunk; - int retval; - - yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, "marking block %d bad", blockNo); - - retval = mtd->block_markbad(mtd, (loff_t)blocksize * blockNo); - return (retval) ? YAFFS_FAIL : YAFFS_OK; -} - -/* Check any MTD prerequists. - * - * Returns YAFFS_OK or YAFFS_FAIL. - */ -static int nandmtd1_TestPrerequists(struct mtd_info * mtd) -{ - /* 2.6.18 has mtd->ecclayout->oobavail */ - /* 2.6.21 has mtd->ecclayout->oobavail and mtd->oobavail */ - int oobavail = mtd->ecclayout->oobavail; - - if (oobavail < YTAG1_SIZE) { - yaffs_trace(YAFFS_TRACE_ERROR, - "mtd device has only %d bytes for tags, need %d\n", - oobavail, YTAG1_SIZE); - return YAFFS_FAIL; - } - return YAFFS_OK; -} - -/* Query for the current state of a specific block. - * - * Examine the tags of the first chunk of the block and return the state: - * - YAFFS_BLOCK_STATE_DEAD, the block is marked bad - * - YAFFS_BLOCK_STATE_NEEDS_SCANNING, the block is in use - * - YAFFS_BLOCK_STATE_EMPTY, the block is clean - * - * Always returns YAFFS_OK. - */ -int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * pState, int *pSequenceNumber) -{ - struct mtd_info * mtd = dev->genericDevice; - int chunkNo = blockNo * dev->nChunksPerBlock; - yaffs_ExtendedTags etags; - int state = YAFFS_BLOCK_STATE_DEAD; - int seqnum = 0; - int retval; - - /* We don't yet have a good place to test for MTD config prerequists. - * Do it here as we are called during the initial scan. - */ - if (nandmtd1_TestPrerequists(mtd) != YAFFS_OK) { - return YAFFS_FAIL; - } - - retval = nandmtd1_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &etags); - if (etags.blockBad) { - yaffs_trace(YAFFS_TRACE_BAD_BLOCKS, - "block %d is marked bad", blockNo); - state = YAFFS_BLOCK_STATE_DEAD; - } - else if (etags.chunkUsed) { - state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - seqnum = etags.sequenceNumber; - } - else { - state = YAFFS_BLOCK_STATE_EMPTY; - } - - *pState = state; - *pSequenceNumber = seqnum; - - /* query always succeeds */ - return YAFFS_OK; -} - -#endif /*KERNEL_VERSION*/ diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1.h deleted file mode 100644 index c4f6197..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif1.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * YAFFS: Yet another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_MTDIF1_H__ -#define __YAFFS_MTDIF1_H__ - -int nandmtd1_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, const yaffs_ExtendedTags * tags); - -int nandmtd1_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, - __u8 * data, yaffs_ExtendedTags * tags); - -int nandmtd1_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); - -int nandmtd1_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * state, int *sequenceNumber); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif2.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif2.c deleted file mode 100644 index cdad073..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif2.c +++ /dev/null @@ -1,232 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* mtd interface for YAFFS2 */ - -const char *yaffs_mtdif2_c_version = - "$Id: yaffs_mtdif2.c,v 1.17 2007-02-14 01:09:06 wookey Exp $"; - -#include "yportenv.h" - - -#include "yaffs_mtdif2.h" - -#include "linux/mtd/mtd.h" -#include "linux/types.h" -#include "linux/time.h" - -#include "yaffs_packedtags2.h" - -int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * tags) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - struct mtd_oob_ops ops; -#else - size_t dummy; -#endif - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; - - yaffs_PackedTags2 pt; - - T(YAFFS_TRACE_MTD, - (TSTR - ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p" - TENDSTR), chunkInNAND, data, tags)); - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - if (tags) - yaffs_PackTags2(&pt, tags); - else - BUG(); /* both tags and data should always be present */ - - if (data) { - ops.mode = MTD_OOB_AUTO; - ops.ooblen = sizeof(pt); - ops.len = dev->nDataBytesPerChunk; - ops.ooboffs = 0; - ops.datbuf = (__u8 *)data; - ops.oobbuf = (void *)&pt; - retval = mtd->write_oob(mtd, addr, &ops); - } else - BUG(); /* both tags and data should always be present */ -#else - if (tags) { - yaffs_PackTags2(&pt, tags); - } - - if (data && tags) { - if (dev->useNANDECC) - retval = - mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, (__u8 *) & pt, NULL); - else - retval = - mtd->write_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, (__u8 *) & pt, NULL); - } else { - if (data) - retval = - mtd->write(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); - if (tags) - retval = - mtd->write_oob(mtd, addr, mtd->oobsize, &dummy, - (__u8 *) & pt); - - } -#endif - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, - __u8 * data, yaffs_ExtendedTags * tags) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - struct mtd_oob_ops ops; -#endif - size_t dummy; - int retval = 0; - - loff_t addr = ((loff_t) chunkInNAND) * dev->nDataBytesPerChunk; - - yaffs_PackedTags2 pt; - - T(YAFFS_TRACE_MTD, - (TSTR - ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p" - TENDSTR), chunkInNAND, data, tags)); - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,17)) - if (data && !tags) - retval = mtd->read(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data); - else if (tags) { - ops.mode = MTD_OOB_AUTO; - ops.ooblen = sizeof(pt); - ops.len = data ? dev->nDataBytesPerChunk : sizeof(pt); - ops.ooboffs = 0; - ops.datbuf = data; - ops.oobbuf = dev->spareBuffer; - retval = mtd->read_oob(mtd, addr, &ops); - } -#else - if (data && tags) { - if (dev->useNANDECC) { - retval = - mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, dev->spareBuffer, - NULL); - } else { - retval = - mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk, - &dummy, data, dev->spareBuffer, - NULL); - } - } else { - if (data) - retval = - mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy, - data); - if (tags) - retval = - mtd->read_oob(mtd, addr, mtd->oobsize, &dummy, - dev->spareBuffer); - } -#endif - - memcpy(&pt, dev->spareBuffer, sizeof(pt)); - - if (tags) - yaffs_UnpackTags2(tags, &pt); - - if(tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) - tags->eccResult = YAFFS_ECC_RESULT_UNFIXED; - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - -int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); - int retval; - T(YAFFS_TRACE_MTD, - (TSTR("nandmtd2_MarkNANDBlockBad %d" TENDSTR), blockNo)); - - retval = - mtd->block_markbad(mtd, - blockNo * dev->nChunksPerBlock * - dev->nDataBytesPerChunk); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; - -} - -int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * state, int *sequenceNumber) -{ - struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice); - int retval; - - T(YAFFS_TRACE_MTD, - (TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo)); - retval = - mtd->block_isbad(mtd, - blockNo * dev->nChunksPerBlock * - dev->nDataBytesPerChunk); - - if (retval) { - T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR))); - - *state = YAFFS_BLOCK_STATE_DEAD; - *sequenceNumber = 0; - } else { - yaffs_ExtendedTags t; - nandmtd2_ReadChunkWithTagsFromNAND(dev, - blockNo * - dev->nChunksPerBlock, NULL, - &t); - - if (t.chunkUsed) { - *sequenceNumber = t.sequenceNumber; - *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - } else { - *sequenceNumber = 0; - *state = YAFFS_BLOCK_STATE_EMPTY; - } - } - T(YAFFS_TRACE_MTD, - (TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber, - *state)); - - if (retval == 0) - return YAFFS_OK; - else - return YAFFS_FAIL; -} - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif2.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif2.h deleted file mode 100644 index b67ba52..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_mtdif2.h +++ /dev/null @@ -1,29 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_MTDIF2_H__ -#define __YAFFS_MTDIF2_H__ - -#include "yaffs_guts.h" -int nandmtd2_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * tags); -int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, - __u8 * data, yaffs_ExtendedTags * tags); -int nandmtd2_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); -int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * state, int *sequenceNumber); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nand.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nand.c deleted file mode 100644 index 4e25033..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nand.c +++ /dev/null @@ -1,134 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -const char *yaffs_nand_c_version = - "$Id: yaffs_nand.c,v 1.7 2007-02-14 01:09:06 wookey Exp $"; - -#include "yaffs_nand.h" -#include "yaffs_tagscompat.h" -#include "yaffs_tagsvalidity.h" - - -int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, - __u8 * buffer, - yaffs_ExtendedTags * tags) -{ - int result; - yaffs_ExtendedTags localTags; - - int realignedChunkInNAND = chunkInNAND - dev->chunkOffset; - - /* If there are no tags provided, use local tags to get prioritised gc working */ - if(!tags) - tags = &localTags; - - if (dev->readChunkWithTagsFromNAND) - result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer, - tags); - else - result = yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(dev, - realignedChunkInNAND, - buffer, - tags); - if(tags && - tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){ - - yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock); - yaffs_HandleChunkError(dev,bi); - } - - return result; -} - -int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, - int chunkInNAND, - const __u8 * buffer, - yaffs_ExtendedTags * tags) -{ - chunkInNAND -= dev->chunkOffset; - - - if (tags) { - tags->sequenceNumber = dev->sequenceNumber; - tags->chunkUsed = 1; - if (!yaffs_ValidateTags(tags)) { - T(YAFFS_TRACE_ERROR, - (TSTR("Writing uninitialised tags" TENDSTR))); - YBUG(); - } - T(YAFFS_TRACE_WRITE, - (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND, - tags->objectId, tags->chunkId)); - } else { - T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR))); - YBUG(); - } - - if (dev->writeChunkWithTagsToNAND) - return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer, - tags); - else - return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev, - chunkInNAND, - buffer, - tags); -} - -int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo) -{ - blockNo -= dev->blockOffset; - -; - if (dev->markNANDBlockBad) - return dev->markNANDBlockBad(dev, blockNo); - else - return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo); -} - -int yaffs_QueryInitialBlockState(yaffs_Device * dev, - int blockNo, - yaffs_BlockState * state, - unsigned *sequenceNumber) -{ - blockNo -= dev->blockOffset; - - if (dev->queryNANDBlock) - return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber); - else - return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo, - state, - sequenceNumber); -} - - -int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND) -{ - int result; - - blockInNAND -= dev->blockOffset; - - - dev->nBlockErasures++; - result = dev->eraseBlockInNAND(dev, blockInNAND); - - return result; -} - -int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev) -{ - return dev->initialiseNAND(dev); -} - - - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nand.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nand.h deleted file mode 100644 index 5fa334b..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nand.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_NAND_H__ -#define __YAFFS_NAND_H__ -#include "yaffs_guts.h" - - - -int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND, - __u8 * buffer, - yaffs_ExtendedTags * tags); - -int yaffs_WriteChunkWithTagsToNAND(yaffs_Device * dev, - int chunkInNAND, - const __u8 * buffer, - yaffs_ExtendedTags * tags); - -int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo); - -int yaffs_QueryInitialBlockState(yaffs_Device * dev, - int blockNo, - yaffs_BlockState * state, - unsigned *sequenceNumber); - -int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND); - -int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev); - -#endif - diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nandemul2k.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nandemul2k.h deleted file mode 100644 index cd2e96f..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_nandemul2k.h +++ /dev/null @@ -1,39 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* Interface to emulated NAND functions (2k page size) */ - -#ifndef __YAFFS_NANDEMUL2K_H__ -#define __YAFFS_NANDEMUL2K_H__ - -#include "yaffs_guts.h" - -int nandemul2k_WriteChunkWithTagsToNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 * data, - yaffs_ExtendedTags * tags); -int nandemul2k_ReadChunkWithTagsFromNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, __u8 * data, - yaffs_ExtendedTags * tags); -int nandemul2k_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockNo); -int nandemul2k_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo, - yaffs_BlockState * state, int *sequenceNumber); -int nandemul2k_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, - int blockInNAND); -int nandemul2k_InitialiseNAND(struct yaffs_DeviceStruct *dev); -int nandemul2k_GetBytesPerChunk(void); -int nandemul2k_GetChunksPerBlock(void); -int nandemul2k_GetNumberOfBlocks(void); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags1.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags1.c deleted file mode 100644 index f480bf1..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags1.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_packedtags1.h" -#include "yportenv.h" - -void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t) -{ - pt->chunkId = t->chunkId; - pt->serialNumber = t->serialNumber; - pt->byteCount = t->byteCount; - pt->objectId = t->objectId; - pt->ecc = 0; - pt->deleted = (t->chunkDeleted) ? 0 : 1; - pt->unusedStuff = 0; - pt->shouldBeFF = 0xFFFFFFFF; - -} - -void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt) -{ - static const __u8 allFF[] = - { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, -0xff }; - - if (memcmp(allFF, pt, sizeof(yaffs_PackedTags1))) { - t->blockBad = 0; - if (pt->shouldBeFF != 0xFFFFFFFF) { - t->blockBad = 1; - } - t->chunkUsed = 1; - t->objectId = pt->objectId; - t->chunkId = pt->chunkId; - t->byteCount = pt->byteCount; - t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; - t->chunkDeleted = (pt->deleted) ? 0 : 1; - t->serialNumber = pt->serialNumber; - } else { - memset(t, 0, sizeof(yaffs_ExtendedTags)); - - } -} diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags1.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags1.h deleted file mode 100644 index 776c5c2..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags1.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* This is used to pack YAFFS1 tags, not YAFFS2 tags. */ - -#ifndef __YAFFS_PACKEDTAGS1_H__ -#define __YAFFS_PACKEDTAGS1_H__ - -#include "yaffs_guts.h" - -typedef struct { - unsigned chunkId:20; - unsigned serialNumber:2; - unsigned byteCount:10; - unsigned objectId:18; - unsigned ecc:12; - unsigned deleted:1; - unsigned unusedStuff:1; - unsigned shouldBeFF; - -} yaffs_PackedTags1; - -void yaffs_PackTags1(yaffs_PackedTags1 * pt, const yaffs_ExtendedTags * t); -void yaffs_UnpackTags1(yaffs_ExtendedTags * t, const yaffs_PackedTags1 * pt); -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags2.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags2.c deleted file mode 100644 index e420f95..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags2.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_packedtags2.h" -#include "yportenv.h" -#include "yaffs_tagsvalidity.h" - -/* This code packs a set of extended tags into a binary structure for - * NAND storage - */ - -/* Some of the information is "extra" struff which can be packed in to - * speed scanning - * This is defined by having the EXTRA_HEADER_INFO_FLAG set. - */ - -/* Extra flags applied to chunkId */ - -#define EXTRA_HEADER_INFO_FLAG 0x80000000 -#define EXTRA_SHRINK_FLAG 0x40000000 -#define EXTRA_SHADOWS_FLAG 0x20000000 -#define EXTRA_SPARE_FLAGS 0x10000000 - -#define ALL_EXTRA_FLAGS 0xF0000000 - -/* Also, the top 4 bits of the object Id are set to the object type. */ -#define EXTRA_OBJECT_TYPE_SHIFT (28) -#define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT) - -static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt) -{ - T(YAFFS_TRACE_MTD, - (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), - pt->t.objectId, pt->t.chunkId, pt->t.byteCount, - pt->t.sequenceNumber)); -} - -static void yaffs_DumpTags2(const yaffs_ExtendedTags * t) -{ - T(YAFFS_TRACE_MTD, - (TSTR - ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte " - "%d del %d ser %d seq %d" - TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId, - t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber, - t->sequenceNumber)); - -} - -void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t) -{ - pt->t.chunkId = t->chunkId; - pt->t.sequenceNumber = t->sequenceNumber; - pt->t.byteCount = t->byteCount; - pt->t.objectId = t->objectId; - - if (t->chunkId == 0 && t->extraHeaderInfoAvailable) { - /* Store the extra header info instead */ - /* We save the parent object in the chunkId */ - pt->t.chunkId = EXTRA_HEADER_INFO_FLAG - | t->extraParentObjectId; - if (t->extraIsShrinkHeader) { - pt->t.chunkId |= EXTRA_SHRINK_FLAG; - } - if (t->extraShadows) { - pt->t.chunkId |= EXTRA_SHADOWS_FLAG; - } - - pt->t.objectId &= ~EXTRA_OBJECT_TYPE_MASK; - pt->t.objectId |= - (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); - - if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { - pt->t.byteCount = t->extraEquivalentObjectId; - } else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) { - pt->t.byteCount = t->extraFileLength; - } else { - pt->t.byteCount = 0; - } - } - - yaffs_DumpPackedTags2(pt); - yaffs_DumpTags2(t); - -#ifndef YAFFS_IGNORE_TAGS_ECC - { - yaffs_ECCCalculateOther((unsigned char *)&pt->t, - sizeof(yaffs_PackedTags2TagsPart), - &pt->ecc); - } -#endif -} - -void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt) -{ - - memset(t, 0, sizeof(yaffs_ExtendedTags)); - - yaffs_InitialiseTags(t); - - if (pt->t.sequenceNumber != 0xFFFFFFFF) { - /* Page is in use */ -#ifdef YAFFS_IGNORE_TAGS_ECC - { - t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; - } -#else - { - yaffs_ECCOther ecc; - int result; - yaffs_ECCCalculateOther((unsigned char *)&pt->t, - sizeof - (yaffs_PackedTags2TagsPart), - &ecc); - result = - yaffs_ECCCorrectOther((unsigned char *)&pt->t, - sizeof - (yaffs_PackedTags2TagsPart), - &pt->ecc, &ecc); - switch(result){ - case 0: - t->eccResult = YAFFS_ECC_RESULT_NO_ERROR; - break; - case 1: - t->eccResult = YAFFS_ECC_RESULT_FIXED; - break; - case -1: - t->eccResult = YAFFS_ECC_RESULT_UNFIXED; - break; - default: - t->eccResult = YAFFS_ECC_RESULT_UNKNOWN; - } - } -#endif - t->blockBad = 0; - t->chunkUsed = 1; - t->objectId = pt->t.objectId; - t->chunkId = pt->t.chunkId; - t->byteCount = pt->t.byteCount; - t->chunkDeleted = 0; - t->serialNumber = 0; - t->sequenceNumber = pt->t.sequenceNumber; - - /* Do extra header info stuff */ - - if (pt->t.chunkId & EXTRA_HEADER_INFO_FLAG) { - t->chunkId = 0; - t->byteCount = 0; - - t->extraHeaderInfoAvailable = 1; - t->extraParentObjectId = - pt->t.chunkId & (~(ALL_EXTRA_FLAGS)); - t->extraIsShrinkHeader = - (pt->t.chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0; - t->extraShadows = - (pt->t.chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0; - t->extraObjectType = - pt->t.objectId >> EXTRA_OBJECT_TYPE_SHIFT; - t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; - - if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { - t->extraEquivalentObjectId = pt->t.byteCount; - } else { - t->extraFileLength = pt->t.byteCount; - } - } - } - - yaffs_DumpPackedTags2(pt); - yaffs_DumpTags2(t); - -} diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags2.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags2.h deleted file mode 100644 index c2242ff..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_packedtags2.h +++ /dev/null @@ -1,38 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -/* This is used to pack YAFFS2 tags, not YAFFS1tags. */ - -#ifndef __YAFFS_PACKEDTAGS2_H__ -#define __YAFFS_PACKEDTAGS2_H__ - -#include "yaffs_guts.h" -#include "yaffs_ecc.h" - -typedef struct { - unsigned sequenceNumber; - unsigned objectId; - unsigned chunkId; - unsigned byteCount; -} yaffs_PackedTags2TagsPart; - -typedef struct { - yaffs_PackedTags2TagsPart t; - yaffs_ECCOther ecc; -} yaffs_PackedTags2; - -void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t); -void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt); -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_qsort.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_qsort.c deleted file mode 100644 index 474be9c..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_qsort.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include "yportenv.h" -//#include <linux/string.h> - -/* - * Qsort routine from Bentley & McIlroy's "Engineering a Sort Function". - */ -#define swapcode(TYPE, parmi, parmj, n) { \ - long i = (n) / sizeof (TYPE); \ - register TYPE *pi = (TYPE *) (parmi); \ - register TYPE *pj = (TYPE *) (parmj); \ - do { \ - register TYPE t = *pi; \ - *pi++ = *pj; \ - *pj++ = t; \ - } while (--i > 0); \ -} - -#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long) || \ - es % sizeof(long) ? 2 : es == sizeof(long)? 0 : 1; - -static __inline void -swapfunc(char *a, char *b, int n, int swaptype) -{ - if (swaptype <= 1) - swapcode(long, a, b, n) - else - swapcode(char, a, b, n) -} - -#define swap(a, b) \ - if (swaptype == 0) { \ - long t = *(long *)(a); \ - *(long *)(a) = *(long *)(b); \ - *(long *)(b) = t; \ - } else \ - swapfunc(a, b, es, swaptype) - -#define vecswap(a, b, n) if ((n) > 0) swapfunc(a, b, n, swaptype) - -static __inline char * -med3(char *a, char *b, char *c, int (*cmp)(const void *, const void *)) -{ - return cmp(a, b) < 0 ? - (cmp(b, c) < 0 ? b : (cmp(a, c) < 0 ? c : a )) - :(cmp(b, c) > 0 ? b : (cmp(a, c) < 0 ? a : c )); -} - -#ifndef min -#define min(a,b) (((a) < (b)) ? (a) : (b)) -#endif - -void -yaffs_qsort(void *aa, size_t n, size_t es, - int (*cmp)(const void *, const void *)) -{ - char *pa, *pb, *pc, *pd, *pl, *pm, *pn; - int d, r, swaptype, swap_cnt; - register char *a = aa; - -loop: SWAPINIT(a, es); - swap_cnt = 0; - if (n < 7) { - for (pm = (char *)a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; - pl -= es) - swap(pl, pl - es); - return; - } - pm = (char *)a + (n / 2) * es; - if (n > 7) { - pl = (char *)a; - pn = (char *)a + (n - 1) * es; - if (n > 40) { - d = (n / 8) * es; - pl = med3(pl, pl + d, pl + 2 * d, cmp); - pm = med3(pm - d, pm, pm + d, cmp); - pn = med3(pn - 2 * d, pn - d, pn, cmp); - } - pm = med3(pl, pm, pn, cmp); - } - swap(a, pm); - pa = pb = (char *)a + es; - - pc = pd = (char *)a + (n - 1) * es; - for (;;) { - while (pb <= pc && (r = cmp(pb, a)) <= 0) { - if (r == 0) { - swap_cnt = 1; - swap(pa, pb); - pa += es; - } - pb += es; - } - while (pb <= pc && (r = cmp(pc, a)) >= 0) { - if (r == 0) { - swap_cnt = 1; - swap(pc, pd); - pd -= es; - } - pc -= es; - } - if (pb > pc) - break; - swap(pb, pc); - swap_cnt = 1; - pb += es; - pc -= es; - } - if (swap_cnt == 0) { /* Switch to insertion sort */ - for (pm = (char *) a + es; pm < (char *) a + n * es; pm += es) - for (pl = pm; pl > (char *) a && cmp(pl - es, pl) > 0; - pl -= es) - swap(pl, pl - es); - return; - } - - pn = (char *)a + n * es; - r = min(pa - (char *)a, pb - pa); - vecswap(a, pb - r, r); - r = min((long)(pd - pc), (long)(pn - pd - es)); - vecswap(pb, pn - r, r); - if ((r = pb - pa) > es) - yaffs_qsort(a, r / es, es, cmp); - if ((r = pd - pc) > es) { - /* Iterate rather than recurse to save stack space */ - a = pn - r; - n = r / es; - goto loop; - } -/* yaffs_qsort(pn - r, r / es, es, cmp);*/ -} diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_qsort.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_qsort.h deleted file mode 100644 index 610b7ec..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_qsort.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - -#ifndef __YAFFS_QSORT_H__ -#define __YAFFS_QSORT_H__ - -extern void yaffs_qsort (void *const base, size_t total_elems, size_t size, - int (*cmp)(const void *, const void *)); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagscompat.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagscompat.c deleted file mode 100644 index 7622b1a..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagscompat.c +++ /dev/null @@ -1,530 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_guts.h" -#include "yaffs_tagscompat.h" -#include "yaffs_ecc.h" - -static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND); -#ifdef NOTYET -static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND); -static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_Spare * spare); -static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, - const yaffs_Spare * spare); -static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND); -#endif - -static const char yaffs_countBitsTable[256] = { - 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7, - 4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8 -}; - -int yaffs_CountBits(__u8 x) -{ - int retVal; - retVal = yaffs_countBitsTable[x]; - return retVal; -} - -/********** Tags ECC calculations *********/ - -void yaffs_CalcECC(const __u8 * data, yaffs_Spare * spare) -{ - yaffs_ECCCalculate(data, spare->ecc1); - yaffs_ECCCalculate(&data[256], spare->ecc2); -} - -void yaffs_CalcTagsECC(yaffs_Tags * tags) -{ - /* Calculate an ecc */ - - unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; - unsigned i, j; - unsigned ecc = 0; - unsigned bit = 0; - - tags->ecc = 0; - - for (i = 0; i < 8; i++) { - for (j = 1; j & 0xff; j <<= 1) { - bit++; - if (b[i] & j) { - ecc ^= bit; - } - } - } - - tags->ecc = ecc; - -} - -int yaffs_CheckECCOnTags(yaffs_Tags * tags) -{ - unsigned ecc = tags->ecc; - - yaffs_CalcTagsECC(tags); - - ecc ^= tags->ecc; - - if (ecc && ecc <= 64) { - /* TODO: Handle the failure better. Retire? */ - unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes; - - ecc--; - - b[ecc / 8] ^= (1 << (ecc & 7)); - - /* Now recvalc the ecc */ - yaffs_CalcTagsECC(tags); - - return 1; /* recovered error */ - } else if (ecc) { - /* Wierd ecc failure value */ - /* TODO Need to do somethiong here */ - return -1; /* unrecovered error */ - } - - return 0; -} - -/********** Tags **********/ - -static void yaffs_LoadTagsIntoSpare(yaffs_Spare * sparePtr, - yaffs_Tags * tagsPtr) -{ - yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; - - yaffs_CalcTagsECC(tagsPtr); - - sparePtr->tagByte0 = tu->asBytes[0]; - sparePtr->tagByte1 = tu->asBytes[1]; - sparePtr->tagByte2 = tu->asBytes[2]; - sparePtr->tagByte3 = tu->asBytes[3]; - sparePtr->tagByte4 = tu->asBytes[4]; - sparePtr->tagByte5 = tu->asBytes[5]; - sparePtr->tagByte6 = tu->asBytes[6]; - sparePtr->tagByte7 = tu->asBytes[7]; -} - -static void yaffs_GetTagsFromSpare(yaffs_Device * dev, yaffs_Spare * sparePtr, - yaffs_Tags * tagsPtr) -{ - yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr; - int result; - - tu->asBytes[0] = sparePtr->tagByte0; - tu->asBytes[1] = sparePtr->tagByte1; - tu->asBytes[2] = sparePtr->tagByte2; - tu->asBytes[3] = sparePtr->tagByte3; - tu->asBytes[4] = sparePtr->tagByte4; - tu->asBytes[5] = sparePtr->tagByte5; - tu->asBytes[6] = sparePtr->tagByte6; - tu->asBytes[7] = sparePtr->tagByte7; - - result = yaffs_CheckECCOnTags(tagsPtr); - if (result > 0) { - dev->tagsEccFixed++; - } else if (result < 0) { - dev->tagsEccUnfixed++; - } -} - -static void yaffs_SpareInitialise(yaffs_Spare * spare) -{ - memset(spare, 0xFF, sizeof(yaffs_Spare)); -} - -static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, const __u8 * data, - yaffs_Spare * spare) -{ - if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) { - T(YAFFS_TRACE_ERROR, - (TSTR("**>> yaffs chunk %d is not valid" TENDSTR), - chunkInNAND)); - return YAFFS_FAIL; - } - - dev->nPageWrites++; - return dev->writeChunkToNAND(dev, chunkInNAND, data, spare); -} - -static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev, - int chunkInNAND, - __u8 * data, - yaffs_Spare * spare, - yaffs_ECCResult * eccResult, - int doErrorCorrection) -{ - int retVal; - yaffs_Spare localSpare; - - dev->nPageReads++; - - if (!spare && data) { - /* If we don't have a real spare, then we use a local one. */ - /* Need this for the calculation of the ecc */ - spare = &localSpare; - } - - if (!dev->useNANDECC) { - retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare); - if (data && doErrorCorrection) { - /* Do ECC correction */ - /* Todo handle any errors */ - int eccResult1, eccResult2; - __u8 calcEcc[3]; - - yaffs_ECCCalculate(data, calcEcc); - eccResult1 = - yaffs_ECCCorrect(data, spare->ecc1, calcEcc); - yaffs_ECCCalculate(&data[256], calcEcc); - eccResult2 = - yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc); - - if (eccResult1 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error fix performed on chunk %d:0" - TENDSTR), chunkInNAND)); - dev->eccFixed++; - } else if (eccResult1 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error unfixed on chunk %d:0" - TENDSTR), chunkInNAND)); - dev->eccUnfixed++; - } - - if (eccResult2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error fix performed on chunk %d:1" - TENDSTR), chunkInNAND)); - dev->eccFixed++; - } else if (eccResult2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>yaffs ecc error unfixed on chunk %d:1" - TENDSTR), chunkInNAND)); - dev->eccUnfixed++; - } - - if (eccResult1 || eccResult2) { - /* We had a data problem on this page */ - yaffs_HandleReadDataError(dev, chunkInNAND); - } - - if (eccResult1 < 0 || eccResult2 < 0) - *eccResult = YAFFS_ECC_RESULT_UNFIXED; - else if (eccResult1 > 0 || eccResult2 > 0) - *eccResult = YAFFS_ECC_RESULT_FIXED; - else - *eccResult = YAFFS_ECC_RESULT_NO_ERROR; - } - } else { - /* Must allocate enough memory for spare+2*sizeof(int) */ - /* for ecc results from device. */ - struct yaffs_NANDSpare nspare; - retVal = - dev->readChunkFromNAND(dev, chunkInNAND, data, - (yaffs_Spare *) & nspare); - memcpy(spare, &nspare, sizeof(yaffs_Spare)); - if (data && doErrorCorrection) { - if (nspare.eccres1 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error fix performed on chunk %d:0" - TENDSTR), chunkInNAND)); - } else if (nspare.eccres1 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error unfixed on chunk %d:0" - TENDSTR), chunkInNAND)); - } - - if (nspare.eccres2 > 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error fix performed on chunk %d:1" - TENDSTR), chunkInNAND)); - } else if (nspare.eccres2 < 0) { - T(YAFFS_TRACE_ERROR, - (TSTR - ("**>>mtd ecc error unfixed on chunk %d:1" - TENDSTR), chunkInNAND)); - } - - if (nspare.eccres1 || nspare.eccres2) { - /* We had a data problem on this page */ - yaffs_HandleReadDataError(dev, chunkInNAND); - } - - if (nspare.eccres1 < 0 || nspare.eccres2 < 0) - *eccResult = YAFFS_ECC_RESULT_UNFIXED; - else if (nspare.eccres1 > 0 || nspare.eccres2 > 0) - *eccResult = YAFFS_ECC_RESULT_FIXED; - else - *eccResult = YAFFS_ECC_RESULT_NO_ERROR; - - } - } - return retVal; -} - -#ifdef NOTYET -static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev, - int chunkInNAND) -{ - - static int init = 0; - static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK]; - static __u8 data[YAFFS_BYTES_PER_CHUNK]; - /* Might as well always allocate the larger size for */ - /* dev->useNANDECC == true; */ - static __u8 spare[sizeof(struct yaffs_NANDSpare)]; - - dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare); - - if (!init) { - memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK); - init = 1; - } - - if (memcmp(cmpbuf, data, YAFFS_BYTES_PER_CHUNK)) - return YAFFS_FAIL; - if (memcmp(cmpbuf, spare, 16)) - return YAFFS_FAIL; - - return YAFFS_OK; - -} -#endif - -/* - * Functions for robustisizing - */ - -static void yaffs_HandleReadDataError(yaffs_Device * dev, int chunkInNAND) -{ - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - - /* Mark the block for retirement */ - yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; - T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS, - (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND)); - - /* TODO: - * Just do a garbage collection on the affected block - * then retire the block - * NB recursion - */ -} - -#ifdef NOTYET -static void yaffs_CheckWrittenBlock(yaffs_Device * dev, int chunkInNAND) -{ -} - -static void yaffs_HandleWriteChunkOk(yaffs_Device * dev, int chunkInNAND, - const __u8 * data, - const yaffs_Spare * spare) -{ -} - -static void yaffs_HandleUpdateChunk(yaffs_Device * dev, int chunkInNAND, - const yaffs_Spare * spare) -{ -} - -static void yaffs_HandleWriteChunkError(yaffs_Device * dev, int chunkInNAND) -{ - int blockInNAND = chunkInNAND / dev->nChunksPerBlock; - - /* Mark the block for retirement */ - yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1; - /* Delete the chunk */ - yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__); -} - -static int yaffs_VerifyCompare(const __u8 * d0, const __u8 * d1, - const yaffs_Spare * s0, const yaffs_Spare * s1) -{ - - if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 || - s0->tagByte0 != s1->tagByte0 || - s0->tagByte1 != s1->tagByte1 || - s0->tagByte2 != s1->tagByte2 || - s0->tagByte3 != s1->tagByte3 || - s0->tagByte4 != s1->tagByte4 || - s0->tagByte5 != s1->tagByte5 || - s0->tagByte6 != s1->tagByte6 || - s0->tagByte7 != s1->tagByte7 || - s0->ecc1[0] != s1->ecc1[0] || - s0->ecc1[1] != s1->ecc1[1] || - s0->ecc1[2] != s1->ecc1[2] || - s0->ecc2[0] != s1->ecc2[0] || - s0->ecc2[1] != s1->ecc2[1] || s0->ecc2[2] != s1->ecc2[2]) { - return 0; - } - - return 1; -} -#endif /* NOTYET */ - -int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, - int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * - eTags) -{ - yaffs_Spare spare; - yaffs_Tags tags; - - yaffs_SpareInitialise(&spare); - - if (eTags->chunkDeleted) { - spare.pageStatus = 0; - } else { - tags.objectId = eTags->objectId; - tags.chunkId = eTags->chunkId; - tags.byteCount = eTags->byteCount; - tags.serialNumber = eTags->serialNumber; - - if (!dev->useNANDECC && data) { - yaffs_CalcECC(data, &spare); - } - yaffs_LoadTagsIntoSpare(&spare, &tags); - - } - - return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare); -} - -int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, - int chunkInNAND, - __u8 * data, - yaffs_ExtendedTags * eTags) -{ - - yaffs_Spare spare; - yaffs_Tags tags; - yaffs_ECCResult eccResult; - - static yaffs_Spare spareFF; - static int init; - - if (!init) { - memset(&spareFF, 0xFF, sizeof(spareFF)); - init = 1; - } - - if (yaffs_ReadChunkFromNAND - (dev, chunkInNAND, data, &spare, &eccResult, 1)) { - /* eTags may be NULL */ - if (eTags) { - - int deleted = - (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0; - - eTags->chunkDeleted = deleted; - eTags->eccResult = eccResult; - eTags->blockBad = 0; /* We're reading it */ - /* therefore it is not a bad block */ - eTags->chunkUsed = - (memcmp(&spareFF, &spare, sizeof(spareFF)) != - 0) ? 1 : 0; - - if (eTags->chunkUsed) { - yaffs_GetTagsFromSpare(dev, &spare, &tags); - - eTags->objectId = tags.objectId; - eTags->chunkId = tags.chunkId; - eTags->byteCount = tags.byteCount; - eTags->serialNumber = tags.serialNumber; - } - } - - return YAFFS_OK; - } else { - return YAFFS_FAIL; - } -} - -int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, - int blockInNAND) -{ - - yaffs_Spare spare; - - memset(&spare, 0xff, sizeof(yaffs_Spare)); - - spare.blockStatus = 'Y'; - - yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL, - &spare); - yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1, - NULL, &spare); - - return YAFFS_OK; - -} - -int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, - int blockNo, yaffs_BlockState * - state, - int *sequenceNumber) -{ - - yaffs_Spare spare0, spare1; - static yaffs_Spare spareFF; - static int init; - yaffs_ECCResult dummy; - - if (!init) { - memset(&spareFF, 0xFF, sizeof(spareFF)); - init = 1; - } - - *sequenceNumber = 0; - - yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL, - &spare0, &dummy, 1); - yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL, - &spare1, &dummy, 1); - - if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7) - *state = YAFFS_BLOCK_STATE_DEAD; - else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0) - *state = YAFFS_BLOCK_STATE_EMPTY; - else - *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING; - - return YAFFS_OK; -} diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagscompat.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagscompat.h deleted file mode 100644 index a61e3ba..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagscompat.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFS_TAGSCOMPAT_H__ -#define __YAFFS_TAGSCOMPAT_H__ - -#include "yaffs_guts.h" -int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device * dev, - int chunkInNAND, - const __u8 * data, - const yaffs_ExtendedTags * - tags); -int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device * dev, - int chunkInNAND, - __u8 * data, - yaffs_ExtendedTags * - tags); -int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev, - int blockNo); -int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev, - int blockNo, yaffs_BlockState * - state, int *sequenceNumber); - -void yaffs_CalcTagsECC(yaffs_Tags * tags); -int yaffs_CheckECCOnTags(yaffs_Tags * tags); -int yaffs_CountBits(__u8 byte); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagsvalidity.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagsvalidity.c deleted file mode 100644 index 9e0bd1c..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagsvalidity.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * YAFFS: Yet Another Flash File System. A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include "yaffs_tagsvalidity.h" - -void yaffs_InitialiseTags(yaffs_ExtendedTags * tags) -{ - memset(tags, 0, sizeof(yaffs_ExtendedTags)); - tags->validMarker0 = 0xAAAAAAAA; - tags->validMarker1 = 0x55555555; -} - -int yaffs_ValidateTags(yaffs_ExtendedTags * tags) -{ - return (tags->validMarker0 == 0xAAAAAAAA && - tags->validMarker1 == 0x55555555); - -} diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagsvalidity.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagsvalidity.h deleted file mode 100644 index 2fd0c24..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_tagsvalidity.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - -#ifndef __YAFFS_TAGS_VALIDITY_H__ -#define __YAFFS_TAGS_VALIDITY_H__ - -#include "yaffs_guts.h" - -void yaffs_InitialiseTags(yaffs_ExtendedTags * tags); -int yaffs_ValidateTags(yaffs_ExtendedTags * tags); -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffsinterface.h b/target/linux/generic-2.6/files/fs/yaffs2/yaffsinterface.h deleted file mode 100644 index 810837a..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yaffsinterface.h +++ /dev/null @@ -1,21 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - -#ifndef __YAFFSINTERFACE_H__ -#define __YAFFSINTERFACE_H__ - -int yaffs_Initialise(unsigned nBlocks); - -#endif diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yportenv.h b/target/linux/generic-2.6/files/fs/yaffs2/yportenv.h deleted file mode 100644 index 15ac281..0000000 --- a/target/linux/generic-2.6/files/fs/yaffs2/yportenv.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * YAFFS: Yet another Flash File System . A NAND-flash specific file system. - * - * Copyright (C) 2002-2007 Aleph One Ltd. - * for Toby Churchill Ltd and Brightstar Engineering - * - * Created by Charles Manning <charles@aleph1.co.uk> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 2.1 as - * published by the Free Software Foundation. - * - * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL. - */ - - -#ifndef __YPORTENV_H__ -#define __YPORTENV_H__ - -#if defined CONFIG_YAFFS_WINCE - -#include "ywinceenv.h" - -#elif defined __KERNEL__ - -#include "moduleconfig.h" - -/* Linux kernel */ -#include <linux/version.h> -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)) -#include <linux/config.h> -#endif -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/vmalloc.h> - -#define YCHAR char -#define YUCHAR unsigned char -#define _Y(x) x -#define yaffs_strcpy(a,b) strcpy(a,b) -#define yaffs_strncpy(a,b,c) strncpy(a,b,c) -#define yaffs_strncmp(a,b,c) strncmp(a,b,c) -#define yaffs_strlen(s) strlen(s) -#define yaffs_sprintf sprintf -#define yaffs_toupper(a) toupper(a) - -#define Y_INLINE inline - -#define YAFFS_LOSTNFOUND_NAME "lost+found" -#define YAFFS_LOSTNFOUND_PREFIX "obj" - -/* #define YPRINTF(x) printk x */ -#define YMALLOC(x) kmalloc(x,GFP_KERNEL) -#define YFREE(x) kfree(x) -#define YMALLOC_ALT(x) vmalloc(x) -#define YFREE_ALT(x) vfree(x) -#define YMALLOC_DMA(x) YMALLOC(x) - -// KR - added for use in scan so processes aren't blocked indefinitely. -#define YYIELD() schedule() - -#define YAFFS_ROOT_MODE 0666 -#define YAFFS_LOSTNFOUND_MODE 0666 - -#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) -#define Y_CURRENT_TIME CURRENT_TIME.tv_sec -#define Y_TIME_CONVERT(x) (x).tv_sec -#else -#define Y_CURRENT_TIME CURRENT_TIME -#define Y_TIME_CONVERT(x) (x) -#endif - -#define yaffs_SumCompare(x,y) ((x) == (y)) -#define yaffs_strcmp(a,b) strcmp(a,b) - -#define TENDSTR "\n" -#define TSTR(x) KERN_WARNING x -#define TOUT(p) printk p - -#define yaffs_trace(mask, fmt, args...) \ - do { if ((mask) & (yaffs_traceMask|YAFFS_TRACE_ERROR)) \ - printk(KERN_WARNING "yaffs: " fmt, ## args); \ - } while (0) - -#define compile_time_assertion(assertion) \ - ({ int x = __builtin_choose_expr(assertion, 0, (void)0); (void) x; }) - -#elif defined CONFIG_YAFFS_DIRECT - -/* Direct interface */ -#include "ydirectenv.h" - -#elif defined CONFIG_YAFFS_UTIL - -/* Stuff for YAFFS utilities */ - -#include "stdlib.h" -#include "stdio.h" -#include "string.h" - -#include "devextras.h" - -#define YMALLOC(x) malloc(x) -#define YFREE(x) free(x) -#define YMALLOC_ALT(x) malloc(x) -#define YFREE_ALT(x) free(x) - -#define YCHAR char -#define YUCHAR unsigned char -#define _Y(x) x -#define yaffs_strcpy(a,b) strcpy(a,b) -#define yaffs_strncpy(a,b,c) strncpy(a,b,c) -#define yaffs_strlen(s) strlen(s) -#define yaffs_sprintf sprintf -#define yaffs_toupper(a) toupper(a) - -#define Y_INLINE inline - -/* #define YINFO(s) YPRINTF(( __FILE__ " %d %s\n",__LINE__,s)) */ -/* #define YALERT(s) YINFO(s) */ - -#define TENDSTR "\n" -#define TSTR(x) x -#define TOUT(p) printf p - -#define YAFFS_LOSTNFOUND_NAME "lost+found" -#define YAFFS_LOSTNFOUND_PREFIX "obj" -/* #define YPRINTF(x) printf x */ - -#define YAFFS_ROOT_MODE 0666 -#define YAFFS_LOSTNFOUND_MODE 0666 - -#define yaffs_SumCompare(x,y) ((x) == (y)) -#define yaffs_strcmp(a,b) strcmp(a,b) - -#else -/* Should have specified a configuration type */ -#error Unknown configuration - -#endif - -/* see yaffs_fs.c */ -extern unsigned int yaffs_traceMask; -extern unsigned int yaffs_wr_attempts; - -/* - * Tracing flags. - * The flags masked in YAFFS_TRACE_ALWAYS are always traced. - */ - -#define YAFFS_TRACE_OS 0x00000002 -#define YAFFS_TRACE_ALLOCATE 0x00000004 -#define YAFFS_TRACE_SCAN 0x00000008 -#define YAFFS_TRACE_BAD_BLOCKS 0x00000010 -#define YAFFS_TRACE_ERASE 0x00000020 -#define YAFFS_TRACE_GC 0x00000040 -#define YAFFS_TRACE_WRITE 0x00000080 -#define YAFFS_TRACE_TRACING 0x00000100 -#define YAFFS_TRACE_DELETION 0x00000200 -#define YAFFS_TRACE_BUFFERS 0x00000400 -#define YAFFS_TRACE_NANDACCESS 0x00000800 -#define YAFFS_TRACE_GC_DETAIL 0x00001000 -#define YAFFS_TRACE_SCAN_DEBUG 0x00002000 -#define YAFFS_TRACE_MTD 0x00004000 -#define YAFFS_TRACE_CHECKPOINT 0x00008000 - -#define YAFFS_TRACE_VERIFY 0x00010000 -#define YAFFS_TRACE_VERIFY_NAND 0x00020000 -#define YAFFS_TRACE_VERIFY_FULL 0x00040000 -#define YAFFS_TRACE_VERIFY_ALL 0x000F0000 - - -#define YAFFS_TRACE_ERROR 0x40000000 -#define YAFFS_TRACE_BUG 0x80000000 -#define YAFFS_TRACE_ALWAYS 0xF0000000 - - -#define T(mask,p) do{ if((mask) & (yaffs_traceMask | YAFFS_TRACE_ALWAYS)) TOUT(p);} while(0) - -#ifndef CONFIG_YAFFS_WINCE -#define YBUG() T(YAFFS_TRACE_BUG,(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),__LINE__)) -#endif - -#endif diff --git a/target/linux/generic-2.6/files/include/linux/gpio_buttons.h b/target/linux/generic-2.6/files/include/linux/gpio_buttons.h deleted file mode 100644 index f5e6297..0000000 --- a/target/linux/generic-2.6/files/include/linux/gpio_buttons.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * Definitions for the GPIO buttons interface driver - * - * Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org> - * - * This file was based on: /include/linux/gpio_keys.h - * The original gpio_keys.h seems not to have a license. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#ifndef _GPIO_BUTTONS_H_ -#define _GPIO_BUTTONS_H_ - -struct gpio_button { - int gpio; /* GPIO line number */ - int active_low; - char *desc; /* button description */ - int type; /* input event type (EV_KEY, EV_SW) */ - int code; /* input event code (KEY_*, SW_*) */ - int count; - int threshold; /* count threshold */ -}; - -struct gpio_buttons_platform_data { - struct gpio_button *buttons; - int nbuttons; /* number of buttons */ - int poll_interval; /* polling interval */ -}; - -#endif /* _GPIO_BUTTONS_H_ */ - diff --git a/target/linux/generic-2.6/files/include/linux/gpio_dev.h b/target/linux/generic-2.6/files/include/linux/gpio_dev.h deleted file mode 100644 index 3f3c9c7..0000000 --- a/target/linux/generic-2.6/files/include/linux/gpio_dev.h +++ /dev/null @@ -1,11 +0,0 @@ -#ifndef _GPIODEV_H__ -#define _GPIODEV_H__ - -#define IOC_GPIODEV_MAGIC 'B' -#define GPIO_GET _IO(IOC_GPIODEV_MAGIC, 10) -#define GPIO_SET _IO(IOC_GPIODEV_MAGIC, 11) -#define GPIO_CLEAR _IO(IOC_GPIODEV_MAGIC, 12) -#define GPIO_DIR_IN _IO(IOC_GPIODEV_MAGIC, 13) -#define GPIO_DIR_OUT _IO(IOC_GPIODEV_MAGIC, 14) - -#endif diff --git a/target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h b/target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h deleted file mode 100644 index 8e7d4b1..0000000 --- a/target/linux/generic-2.6/files/include/linux/spi/spi_gpio.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * spi_gpio interface to platform code - * - * Copyright (c) 2008 Piotr Skamruk - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#ifndef _LINUX_SPI_SPI_GPIO -#define _LINUX_SPI_SPI_GPIO - -#include <linux/types.h> -#include <linux/spi/spi.h> - - -/** struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device. - * This structure holds information about a GPIO-based SPI device. - * - * @pin_clk: The GPIO pin number of the CLOCK pin. - * - * @pin_miso: The GPIO pin number of the MISO pin. - * - * @pin_mosi: The GPIO pin number of the MOSI pin. - * - * @pin_cs: The GPIO pin number of the CHIPSELECT pin. - * - * @cs_activelow: If true, the chip is selected when the CS line is low. - * - * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging. - * Note that doing no delay is not standards compliant, - * but it might be needed to speed up transfers on some - * slow embedded machines. - * - * @boardinfo_setup: This callback is called after the - * SPI master device was registered, but before the - * device is registered. - * @boardinfo_setup_data: Data argument passed to boardinfo_setup(). - */ -struct spi_gpio_platform_data { - unsigned int pin_clk; - unsigned int pin_miso; - unsigned int pin_mosi; - unsigned int pin_cs; - bool cs_activelow; - bool no_spi_delay; - int (*boardinfo_setup)(struct spi_board_info *bi, - struct spi_master *master, - void *data); - void *boardinfo_setup_data; -}; - -#endif /* _LINUX_SPI_SPI_GPIO */ diff --git a/target/linux/generic-2.6/files/include/linux/ssb/ssb.h b/target/linux/generic-2.6/files/include/linux/ssb/ssb.h deleted file mode 100644 index 9d5da8b..0000000 --- a/target/linux/generic-2.6/files/include/linux/ssb/ssb.h +++ /dev/null @@ -1,404 +0,0 @@ -#ifndef LINUX_SSB_H_ -#define LINUX_SSB_H_ - -#include <linux/device.h> -#include <linux/list.h> -#include <linux/types.h> -#include <linux/spinlock.h> -#include <linux/pci.h> -#include <linux/mod_devicetable.h> - -#include <linux/ssb/ssb_regs.h> - - -struct pcmcia_device; -struct ssb_bus; -struct ssb_driver; - -struct ssb_sprom { - u8 revision; - u8 il0mac[6]; /* MAC address for 802.11b/g */ - u8 et0mac[6]; /* MAC address for Ethernet */ - u8 et1mac[6]; /* MAC address for 802.11a */ - u8 et0phyaddr; /* MII address for enet0 */ - u8 et1phyaddr; /* MII address for enet1 */ - u8 et0mdcport; /* MDIO for enet0 */ - u8 et1mdcport; /* MDIO for enet1 */ - u8 board_rev; /* Board revision number from SPROM. */ - u8 country_code; /* Country Code */ - u8 ant_available_a; /* A-PHY antenna available bits (up to 4) */ - u8 ant_available_bg; /* B/G-PHY antenna available bits (up to 4) */ - u16 pa0b0; - u16 pa0b1; - u16 pa0b2; - u16 pa1b0; - u16 pa1b1; - u16 pa1b2; - u8 gpio0; /* GPIO pin 0 */ - u8 gpio1; /* GPIO pin 1 */ - u8 gpio2; /* GPIO pin 2 */ - u8 gpio3; /* GPIO pin 3 */ - u16 maxpwr_a; /* A-PHY Amplifier Max Power (in dBm Q5.2) */ - u16 maxpwr_bg; /* B/G-PHY Amplifier Max Power (in dBm Q5.2) */ - u8 itssi_a; /* Idle TSSI Target for A-PHY */ - u8 itssi_bg; /* Idle TSSI Target for B/G-PHY */ - u16 boardflags_lo; /* Boardflags (low 16 bits) */ - u16 boardflags_hi; /* Boardflags (high 16 bits) */ - - /* Antenna gain values for up to 4 antennas - * on each band. Values in dBm/4 (Q5.2). Negative gain means the - * loss in the connectors is bigger than the gain. */ - struct { - struct { - s8 a0, a1, a2, a3; - } ghz24; /* 2.4GHz band */ - struct { - s8 a0, a1, a2, a3; - } ghz5; /* 5GHz band */ - } antenna_gain; - - /* TODO - add any parameters needed from rev 2, 3, or 4 SPROMs */ -}; - -/* Information about the PCB the circuitry is soldered on. */ -struct ssb_boardinfo { - u16 vendor; - u16 type; - u16 rev; -}; - - -struct ssb_device; -/* Lowlevel read/write operations on the device MMIO. - * Internal, don't use that outside of ssb. */ -struct ssb_bus_ops { - u16 (*read16)(struct ssb_device *dev, u16 offset); - u32 (*read32)(struct ssb_device *dev, u16 offset); - void (*write16)(struct ssb_device *dev, u16 offset, u16 value); - void (*write32)(struct ssb_device *dev, u16 offset, u32 value); -}; - - -/* Core-ID values. */ -#define SSB_DEV_CHIPCOMMON 0x800 -#define SSB_DEV_ILINE20 0x801 -#define SSB_DEV_SDRAM 0x803 -#define SSB_DEV_PCI 0x804 -#define SSB_DEV_MIPS 0x805 -#define SSB_DEV_ETHERNET 0x806 -#define SSB_DEV_V90 0x807 -#define SSB_DEV_USB11_HOSTDEV 0x808 -#define SSB_DEV_ADSL 0x809 -#define SSB_DEV_ILINE100 0x80A -#define SSB_DEV_IPSEC 0x80B -#define SSB_DEV_PCMCIA 0x80D -#define SSB_DEV_INTERNAL_MEM 0x80E -#define SSB_DEV_MEMC_SDRAM 0x80F -#define SSB_DEV_EXTIF 0x811 -#define SSB_DEV_80211 0x812 -#define SSB_DEV_MIPS_3302 0x816 -#define SSB_DEV_USB11_HOST 0x817 -#define SSB_DEV_USB11_DEV 0x818 -#define SSB_DEV_USB20_HOST 0x819 -#define SSB_DEV_USB20_DEV 0x81A -#define SSB_DEV_SDIO_HOST 0x81B -#define SSB_DEV_ROBOSWITCH 0x81C -#define SSB_DEV_PARA_ATA 0x81D -#define SSB_DEV_SATA_XORDMA 0x81E -#define SSB_DEV_ETHERNET_GBIT 0x81F -#define SSB_DEV_PCIE 0x820 -#define SSB_DEV_MIMO_PHY 0x821 -#define SSB_DEV_SRAM_CTRLR 0x822 -#define SSB_DEV_MINI_MACPHY 0x823 -#define SSB_DEV_ARM_1176 0x824 -#define SSB_DEV_ARM_7TDMI 0x825 - -/* Vendor-ID values */ -#define SSB_VENDOR_BROADCOM 0x4243 - -/* Some kernel subsystems poke with dev->drvdata, so we must use the - * following ugly workaround to get from struct device to struct ssb_device */ -struct __ssb_dev_wrapper { - struct device dev; - struct ssb_device *sdev; -}; - -struct ssb_device { - /* Having a copy of the ops pointer in each dev struct - * is an optimization. */ - const struct ssb_bus_ops *ops; - - struct device *dev; - struct ssb_bus *bus; - struct ssb_device_id id; - - u8 core_index; - unsigned int irq; - - /* Internal-only stuff follows. */ - void *drvdata; /* Per-device data */ - void *devtypedata; /* Per-devicetype (eg 802.11) data */ -}; - -/* Go from struct device to struct ssb_device. */ -static inline -struct ssb_device * dev_to_ssb_dev(struct device *dev) -{ - struct __ssb_dev_wrapper *wrap; - wrap = container_of(dev, struct __ssb_dev_wrapper, dev); - return wrap->sdev; -} - -/* Device specific user data */ -static inline -void ssb_set_drvdata(struct ssb_device *dev, void *data) -{ - dev->drvdata = data; -} -static inline -void * ssb_get_drvdata(struct ssb_device *dev) -{ - return dev->drvdata; -} - -/* Devicetype specific user data. This is per device-type (not per device) */ -void ssb_set_devtypedata(struct ssb_device *dev, void *data); -static inline -void * ssb_get_devtypedata(struct ssb_device *dev) -{ - return dev->devtypedata; -} - - -struct ssb_driver { - const char *name; - const struct ssb_device_id *id_table; - - int (*probe)(struct ssb_device *dev, const struct ssb_device_id *id); - void (*remove)(struct ssb_device *dev); - int (*suspend)(struct ssb_device *dev, pm_message_t state); - int (*resume)(struct ssb_device *dev); - void (*shutdown)(struct ssb_device *dev); - - struct device_driver drv; -}; -#define drv_to_ssb_drv(_drv) container_of(_drv, struct ssb_driver, drv) - -extern int __ssb_driver_register(struct ssb_driver *drv, struct module *owner); -static inline int ssb_driver_register(struct ssb_driver *drv) -{ - return __ssb_driver_register(drv, THIS_MODULE); -} -extern void ssb_driver_unregister(struct ssb_driver *drv); - - - - -enum ssb_bustype { - SSB_BUSTYPE_SSB, /* This SSB bus is the system bus */ - SSB_BUSTYPE_PCI, /* SSB is connected to PCI bus */ - SSB_BUSTYPE_PCMCIA, /* SSB is connected to PCMCIA bus */ -}; - -/* board_vendor */ -#define SSB_BOARDVENDOR_BCM 0x14E4 /* Broadcom */ -#define SSB_BOARDVENDOR_DELL 0x1028 /* Dell */ -#define SSB_BOARDVENDOR_HP 0x0E11 /* HP */ -/* board_type */ -#define SSB_BOARD_BCM94306MP 0x0418 -#define SSB_BOARD_BCM4309G 0x0421 -#define SSB_BOARD_BCM4306CB 0x0417 -#define SSB_BOARD_BCM4309MP 0x040C -#define SSB_BOARD_MP4318 0x044A -#define SSB_BOARD_BU4306 0x0416 -#define SSB_BOARD_BU4309 0x040A -/* chip_package */ -#define SSB_CHIPPACK_BCM4712S 1 /* Small 200pin 4712 */ -#define SSB_CHIPPACK_BCM4712M 2 /* Medium 225pin 4712 */ -#define SSB_CHIPPACK_BCM4712L 0 /* Large 340pin 4712 */ - -#include <linux/ssb/ssb_driver_chipcommon.h> -#include <linux/ssb/ssb_driver_mips.h> -#include <linux/ssb/ssb_driver_extif.h> -#include <linux/ssb/ssb_driver_pci.h> - -struct ssb_bus { - /* The MMIO area. */ - void __iomem *mmio; - - const struct ssb_bus_ops *ops; - - /* The core in the basic address register window. (PCI bus only) */ - struct ssb_device *mapped_device; - /* Currently mapped PCMCIA segment. (bustype == SSB_BUSTYPE_PCMCIA only) */ - u8 mapped_pcmcia_seg; - /* Lock for core and segment switching. - * On PCMCIA-host busses this is used to protect the whole MMIO access. */ - spinlock_t bar_lock; - - /* The bus this backplane is running on. */ - enum ssb_bustype bustype; - /* Pointer to the PCI bus (only valid if bustype == SSB_BUSTYPE_PCI). */ - struct pci_dev *host_pci; - /* Pointer to the PCMCIA device (only if bustype == SSB_BUSTYPE_PCMCIA). */ - struct pcmcia_device *host_pcmcia; - -#ifdef CONFIG_SSB_PCIHOST - /* Mutex to protect the SPROM writing. */ - struct mutex pci_sprom_mutex; -#endif - - /* ID information about the Chip. */ - u16 chip_id; - u16 chip_rev; - u16 sprom_size; /* number of words in sprom */ - u8 chip_package; - - /* List of devices (cores) on the backplane. */ - struct ssb_device devices[SSB_MAX_NR_CORES]; - u8 nr_devices; - - /* Reference count. Number of suspended devices. */ - u8 suspend_cnt; - - /* Software ID number for this bus. */ - unsigned int busnumber; - - /* The ChipCommon device (if available). */ - struct ssb_chipcommon chipco; - /* The PCI-core device (if available). */ - struct ssb_pcicore pcicore; - /* The MIPS-core device (if available). */ - struct ssb_mipscore mipscore; - /* The EXTif-core device (if available). */ - struct ssb_extif extif; - - /* The following structure elements are not available in early - * SSB initialization. Though, they are available for regular - * registered drivers at any stage. So be careful when - * using them in the ssb core code. */ - - /* ID information about the PCB. */ - struct ssb_boardinfo boardinfo; - /* Contents of the SPROM. */ - struct ssb_sprom sprom; - - /* Internal-only stuff follows. Do not touch. */ - struct list_head list; -#ifdef CONFIG_SSB_DEBUG - /* Is the bus already powered up? */ - bool powered_up; - int power_warn_count; -#endif /* DEBUG */ -}; - -/* The initialization-invariants. */ -struct ssb_init_invariants { - struct ssb_boardinfo boardinfo; - struct ssb_sprom sprom; -}; -/* Type of function to fetch the invariants. */ -typedef int (*ssb_invariants_func_t)(struct ssb_bus *bus, - struct ssb_init_invariants *iv); - -/* Register a SSB system bus. get_invariants() is called after the - * basic system devices are initialized. - * The invariants are usually fetched from some NVRAM. - * Put the invariants into the struct pointed to by iv. */ -extern int ssb_bus_ssbbus_register(struct ssb_bus *bus, - unsigned long baseaddr, - ssb_invariants_func_t get_invariants); -#ifdef CONFIG_SSB_PCIHOST -extern int ssb_bus_pcibus_register(struct ssb_bus *bus, - struct pci_dev *host_pci); -#endif /* CONFIG_SSB_PCIHOST */ -#ifdef CONFIG_SSB_PCMCIAHOST -extern int ssb_bus_pcmciabus_register(struct ssb_bus *bus, - struct pcmcia_device *pcmcia_dev, - unsigned long baseaddr); -#endif /* CONFIG_SSB_PCMCIAHOST */ - -extern void ssb_bus_unregister(struct ssb_bus *bus); - -extern u32 ssb_clockspeed(struct ssb_bus *bus); - -/* Is the device enabled in hardware? */ -int ssb_device_is_enabled(struct ssb_device *dev); -/* Enable a device and pass device-specific SSB_TMSLOW flags. - * If no device-specific flags are available, use 0. */ -void ssb_device_enable(struct ssb_device *dev, u32 core_specific_flags); -/* Disable a device in hardware and pass SSB_TMSLOW flags (if any). */ -void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags); - - -/* Device MMIO register read/write functions. */ -static inline u16 ssb_read16(struct ssb_device *dev, u16 offset) -{ - return dev->ops->read16(dev, offset); -} -static inline u32 ssb_read32(struct ssb_device *dev, u16 offset) -{ - return dev->ops->read32(dev, offset); -} -static inline void ssb_write16(struct ssb_device *dev, u16 offset, u16 value) -{ - dev->ops->write16(dev, offset, value); -} -static inline void ssb_write32(struct ssb_device *dev, u16 offset, u32 value) -{ - dev->ops->write32(dev, offset, value); -} - - -/* Translation (routing) bits that need to be ORed to DMA - * addresses before they are given to a device. */ -extern u32 ssb_dma_translation(struct ssb_device *dev); -#define SSB_DMA_TRANSLATION_MASK 0xC0000000 -#define SSB_DMA_TRANSLATION_SHIFT 30 - -extern int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask); - - -#ifdef CONFIG_SSB_PCIHOST -/* PCI-host wrapper driver */ -extern int ssb_pcihost_register(struct pci_driver *driver); -static inline void ssb_pcihost_unregister(struct pci_driver *driver) -{ - pci_unregister_driver(driver); -} - -static inline -void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state) -{ - if (sdev->bus->bustype == SSB_BUSTYPE_PCI) - pci_set_power_state(sdev->bus->host_pci, state); -} -#else -static inline void ssb_pcihost_unregister(struct pci_driver *driver) -{ -} - -static inline -void ssb_pcihost_set_power_state(struct ssb_device *sdev, pci_power_t state) -{ -} -#endif /* CONFIG_SSB_PCIHOST */ - - -/* If a driver is shutdown or suspended, call this to signal - * that the bus may be completely powered down. SSB will decide, - * if it's really time to power down the bus, based on if there - * are other devices that want to run. */ -extern int ssb_bus_may_powerdown(struct ssb_bus *bus); -/* Before initializing and enabling a device, call this to power-up the bus. - * If you want to allow use of dynamic-power-control, pass the flag. - * Otherwise static always-on powercontrol will be used. */ -extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl); - - -/* Various helper functions */ -extern u32 ssb_admatch_base(u32 adm); -extern u32 ssb_admatch_size(u32 adm); - - -#endif /* LINUX_SSB_H_ */ diff --git a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h b/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h deleted file mode 100644 index 4cb9954..0000000 --- a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_chipcommon.h +++ /dev/null @@ -1,396 +0,0 @@ -#ifndef LINUX_SSB_CHIPCO_H_ -#define LINUX_SSB_CHIPCO_H_ - -/* SonicsSiliconBackplane CHIPCOMMON core hardware definitions - * - * The chipcommon core provides chip identification, SB control, - * jtag, 0/1/2 uarts, clock frequency control, a watchdog interrupt timer, - * gpio interface, extbus, and support for serial and parallel flashes. - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, Michael Buesch <mb@bu3sch.de> - * - * Licensed under the GPL version 2. See COPYING for details. - */ - -/** ChipCommon core registers. **/ - -#define SSB_CHIPCO_CHIPID 0x0000 -#define SSB_CHIPCO_IDMASK 0x0000FFFF -#define SSB_CHIPCO_REVMASK 0x000F0000 -#define SSB_CHIPCO_REVSHIFT 16 -#define SSB_CHIPCO_PACKMASK 0x00F00000 -#define SSB_CHIPCO_PACKSHIFT 20 -#define SSB_CHIPCO_NRCORESMASK 0x0F000000 -#define SSB_CHIPCO_NRCORESSHIFT 24 -#define SSB_CHIPCO_CAP 0x0004 /* Capabilities */ -#define SSB_CHIPCO_CAP_NRUART 0x00000003 /* # of UARTs */ -#define SSB_CHIPCO_CAP_MIPSEB 0x00000004 /* MIPS in BigEndian Mode */ -#define SSB_CHIPCO_CAP_UARTCLK 0x00000018 /* UART clock select */ -#define SSB_CHIPCO_CAP_UARTCLK_INT 0x00000008 /* UARTs are driven by internal divided clock */ -#define SSB_CHIPCO_CAP_UARTGPIO 0x00000020 /* UARTs on GPIO 15-12 */ -#define SSB_CHIPCO_CAP_EXTBUS 0x000000C0 /* External buses present */ -#define SSB_CHIPCO_CAP_FLASHT 0x00000700 /* Flash Type */ -#define SSB_CHIPCO_FLASHT_NONE 0x00000000 /* No flash */ -#define SSB_CHIPCO_FLASHT_STSER 0x00000100 /* ST serial flash */ -#define SSB_CHIPCO_FLASHT_ATSER 0x00000200 /* Atmel serial flash */ -#define SSB_CHIPCO_FLASHT_PARA 0x00000700 /* Parallel flash */ -#define SSB_CHIPCO_CAP_PLLT 0x00038000 /* PLL Type */ -#define SSB_PLLTYPE_NONE 0x00000000 -#define SSB_PLLTYPE_1 0x00010000 /* 48Mhz base, 3 dividers */ -#define SSB_PLLTYPE_2 0x00020000 /* 48Mhz, 4 dividers */ -#define SSB_PLLTYPE_3 0x00030000 /* 25Mhz, 2 dividers */ -#define SSB_PLLTYPE_4 0x00008000 /* 48Mhz, 4 dividers */ -#define SSB_PLLTYPE_5 0x00018000 /* 25Mhz, 4 dividers */ -#define SSB_PLLTYPE_6 0x00028000 /* 100/200 or 120/240 only */ -#define SSB_PLLTYPE_7 0x00038000 /* 25Mhz, 4 dividers */ -#define SSB_CHIPCO_CAP_PCTL 0x00040000 /* Power Control */ -#define SSB_CHIPCO_CAP_OTPS 0x00380000 /* OTP size */ -#define SSB_CHIPCO_CAP_OTPS_SHIFT 19 -#define SSB_CHIPCO_CAP_OTPS_BASE 5 -#define SSB_CHIPCO_CAP_JTAGM 0x00400000 /* JTAG master present */ -#define SSB_CHIPCO_CAP_BROM 0x00800000 /* Internal boot ROM active */ -#define SSB_CHIPCO_CAP_64BIT 0x08000000 /* 64-bit Backplane */ -#define SSB_CHIPCO_CORECTL 0x0008 -#define SSB_CHIPCO_CORECTL_UARTCLK0 0x00000001 /* Drive UART with internal clock */ -#define SSB_CHIPCO_CORECTL_SE 0x00000002 /* sync clk out enable (corerev >= 3) */ -#define SSB_CHIPCO_BIST 0x000C -#define SSB_CHIPCO_OTPS 0x0010 /* OTP status */ -#define SSB_CHIPCO_OTPS_PROGFAIL 0x80000000 -#define SSB_CHIPCO_OTPS_PROTECT 0x00000007 -#define SSB_CHIPCO_OTPS_HW_PROTECT 0x00000001 -#define SSB_CHIPCO_OTPS_SW_PROTECT 0x00000002 -#define SSB_CHIPCO_OTPS_CID_PROTECT 0x00000004 -#define SSB_CHIPCO_OTPC 0x0014 /* OTP control */ -#define SSB_CHIPCO_OTPC_RECWAIT 0xFF000000 -#define SSB_CHIPCO_OTPC_PROGWAIT 0x00FFFF00 -#define SSB_CHIPCO_OTPC_PRW_SHIFT 8 -#define SSB_CHIPCO_OTPC_MAXFAIL 0x00000038 -#define SSB_CHIPCO_OTPC_VSEL 0x00000006 -#define SSB_CHIPCO_OTPC_SELVL 0x00000001 -#define SSB_CHIPCO_OTPP 0x0018 /* OTP prog */ -#define SSB_CHIPCO_OTPP_COL 0x000000FF -#define SSB_CHIPCO_OTPP_ROW 0x0000FF00 -#define SSB_CHIPCO_OTPP_ROW_SHIFT 8 -#define SSB_CHIPCO_OTPP_READERR 0x10000000 -#define SSB_CHIPCO_OTPP_VALUE 0x20000000 -#define SSB_CHIPCO_OTPP_READ 0x40000000 -#define SSB_CHIPCO_OTPP_START 0x80000000 -#define SSB_CHIPCO_OTPP_BUSY 0x80000000 -#define SSB_CHIPCO_IRQSTAT 0x0020 -#define SSB_CHIPCO_IRQMASK 0x0024 -#define SSB_CHIPCO_IRQ_GPIO 0x00000001 /* gpio intr */ -#define SSB_CHIPCO_IRQ_EXT 0x00000002 /* ro: ext intr pin (corerev >= 3) */ -#define SSB_CHIPCO_IRQ_WDRESET 0x80000000 /* watchdog reset occurred */ -#define SSB_CHIPCO_CHIPCTL 0x0028 /* Rev >= 11 only */ -#define SSB_CHIPCO_CHIPSTAT 0x002C /* Rev >= 11 only */ -#define SSB_CHIPCO_JCMD 0x0030 /* Rev >= 10 only */ -#define SSB_CHIPCO_JCMD_START 0x80000000 -#define SSB_CHIPCO_JCMD_BUSY 0x80000000 -#define SSB_CHIPCO_JCMD_PAUSE 0x40000000 -#define SSB_CHIPCO_JCMD0_ACC_MASK 0x0000F000 -#define SSB_CHIPCO_JCMD0_ACC_IRDR 0x00000000 -#define SSB_CHIPCO_JCMD0_ACC_DR 0x00001000 -#define SSB_CHIPCO_JCMD0_ACC_IR 0x00002000 -#define SSB_CHIPCO_JCMD0_ACC_RESET 0x00003000 -#define SSB_CHIPCO_JCMD0_ACC_IRPDR 0x00004000 -#define SSB_CHIPCO_JCMD0_ACC_PDR 0x00005000 -#define SSB_CHIPCO_JCMD0_IRW_MASK 0x00000F00 -#define SSB_CHIPCO_JCMD_ACC_MASK 0x000F0000 /* Changes for corerev 11 */ -#define SSB_CHIPCO_JCMD_ACC_IRDR 0x00000000 -#define SSB_CHIPCO_JCMD_ACC_DR 0x00010000 -#define SSB_CHIPCO_JCMD_ACC_IR 0x00020000 -#define SSB_CHIPCO_JCMD_ACC_RESET 0x00030000 -#define SSB_CHIPCO_JCMD_ACC_IRPDR 0x00040000 -#define SSB_CHIPCO_JCMD_ACC_PDR 0x00050000 -#define SSB_CHIPCO_JCMD_IRW_MASK 0x00001F00 -#define SSB_CHIPCO_JCMD_IRW_SHIFT 8 -#define SSB_CHIPCO_JCMD_DRW_MASK 0x0000003F -#define SSB_CHIPCO_JIR 0x0034 /* Rev >= 10 only */ -#define SSB_CHIPCO_JDR 0x0038 /* Rev >= 10 only */ -#define SSB_CHIPCO_JCTL 0x003C /* Rev >= 10 only */ -#define SSB_CHIPCO_JCTL_FORCE_CLK 4 /* Force clock */ -#define SSB_CHIPCO_JCTL_EXT_EN 2 /* Enable external targets */ -#define SSB_CHIPCO_JCTL_EN 1 /* Enable Jtag master */ -#define SSB_CHIPCO_FLASHCTL 0x0040 -#define SSB_CHIPCO_FLASHCTL_START 0x80000000 -#define SSB_CHIPCO_FLASHCTL_BUSY SSB_CHIPCO_FLASHCTL_START -#define SSB_CHIPCO_FLASHADDR 0x0044 -#define SSB_CHIPCO_FLASHDATA 0x0048 -#define SSB_CHIPCO_BCAST_ADDR 0x0050 -#define SSB_CHIPCO_BCAST_DATA 0x0054 -#define SSB_CHIPCO_GPIOIN 0x0060 -#define SSB_CHIPCO_GPIOOUT 0x0064 -#define SSB_CHIPCO_GPIOOUTEN 0x0068 -#define SSB_CHIPCO_GPIOCTL 0x006C -#define SSB_CHIPCO_GPIOPOL 0x0070 -#define SSB_CHIPCO_GPIOIRQ 0x0074 -#define SSB_CHIPCO_WATCHDOG 0x0080 -#define SSB_CHIPCO_GPIOTIMER 0x0088 /* LED powersave (corerev >= 16) */ -#define SSB_CHIPCO_GPIOTIMER_ONTIME_SHIFT 16 -#define SSB_CHIPCO_GPIOTOUTM 0x008C /* LED powersave (corerev >= 16) */ -#define SSB_CHIPCO_CLOCK_N 0x0090 -#define SSB_CHIPCO_CLOCK_SB 0x0094 -#define SSB_CHIPCO_CLOCK_PCI 0x0098 -#define SSB_CHIPCO_CLOCK_M2 0x009C -#define SSB_CHIPCO_CLOCK_MIPS 0x00A0 -#define SSB_CHIPCO_CLKDIV 0x00A4 /* Rev >= 3 only */ -#define SSB_CHIPCO_CLKDIV_SFLASH 0x0F000000 -#define SSB_CHIPCO_CLKDIV_SFLASH_SHIFT 24 -#define SSB_CHIPCO_CLKDIV_OTP 0x000F0000 -#define SSB_CHIPCO_CLKDIV_OTP_SHIFT 16 -#define SSB_CHIPCO_CLKDIV_JTAG 0x00000F00 -#define SSB_CHIPCO_CLKDIV_JTAG_SHIFT 8 -#define SSB_CHIPCO_CLKDIV_UART 0x000000FF -#define SSB_CHIPCO_PLLONDELAY 0x00B0 /* Rev >= 4 only */ -#define SSB_CHIPCO_FREFSELDELAY 0x00B4 /* Rev >= 4 only */ -#define SSB_CHIPCO_SLOWCLKCTL 0x00B8 /* 6 <= Rev <= 9 only */ -#define SSB_CHIPCO_SLOWCLKCTL_SRC 0x00000007 /* slow clock source mask */ -#define SSB_CHIPCO_SLOWCLKCTL_SRC_LPO 0x00000000 /* source of slow clock is LPO */ -#define SSB_CHIPCO_SLOWCLKCTL_SRC_XTAL 0x00000001 /* source of slow clock is crystal */ -#define SSB_CHIPCO_SLOECLKCTL_SRC_PCI 0x00000002 /* source of slow clock is PCI */ -#define SSB_CHIPCO_SLOWCLKCTL_LPOFREQ 0x00000200 /* LPOFreqSel, 1: 160Khz, 0: 32KHz */ -#define SSB_CHIPCO_SLOWCLKCTL_LPOPD 0x00000400 /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */ -#define SSB_CHIPCO_SLOWCLKCTL_FSLOW 0x00000800 /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */ -#define SSB_CHIPCO_SLOWCLKCTL_IPLL 0x00001000 /* IgnorePllOffReq, 1/0: power logic ignores/honors PLL clock disable requests from core */ -#define SSB_CHIPCO_SLOWCLKCTL_ENXTAL 0x00002000 /* XtalControlEn, 1/0: power logic does/doesn't disable crystal when appropriate */ -#define SSB_CHIPCO_SLOWCLKCTL_XTALPU 0x00004000 /* XtalPU (RO), 1/0: crystal running/disabled */ -#define SSB_CHIPCO_SLOWCLKCTL_CLKDIV 0xFFFF0000 /* ClockDivider (SlowClk = 1/(4+divisor)) */ -#define SSB_CHIPCO_SLOWCLKCTL_CLKDIV_SHIFT 16 -#define SSB_CHIPCO_SYSCLKCTL 0x00C0 /* Rev >= 3 only */ -#define SSB_CHIPCO_SYSCLKCTL_IDLPEN 0x00000001 /* ILPen: Enable Idle Low Power */ -#define SSB_CHIPCO_SYSCLKCTL_ALPEN 0x00000002 /* ALPen: Enable Active Low Power */ -#define SSB_CHIPCO_SYSCLKCTL_PLLEN 0x00000004 /* ForcePLLOn */ -#define SSB_CHIPCO_SYSCLKCTL_FORCEALP 0x00000008 /* Force ALP (or HT if ALPen is not set */ -#define SSB_CHIPCO_SYSCLKCTL_FORCEHT 0x00000010 /* Force HT */ -#define SSB_CHIPCO_SYSCLKCTL_CLKDIV 0xFFFF0000 /* ClkDiv (ILP = 1/(4+divisor)) */ -#define SSB_CHIPCO_SYSCLKCTL_CLKDIV_SHIFT 16 -#define SSB_CHIPCO_CLKSTSTR 0x00C4 /* Rev >= 3 only */ -#define SSB_CHIPCO_PCMCIA_CFG 0x0100 -#define SSB_CHIPCO_PCMCIA_MEMWAIT 0x0104 -#define SSB_CHIPCO_PCMCIA_ATTRWAIT 0x0108 -#define SSB_CHIPCO_PCMCIA_IOWAIT 0x010C -#define SSB_CHIPCO_IDE_CFG 0x0110 -#define SSB_CHIPCO_IDE_MEMWAIT 0x0114 -#define SSB_CHIPCO_IDE_ATTRWAIT 0x0118 -#define SSB_CHIPCO_IDE_IOWAIT 0x011C -#define SSB_CHIPCO_PROG_CFG 0x0120 -#define SSB_CHIPCO_PROG_WAITCNT 0x0124 -#define SSB_CHIPCO_FLASH_CFG 0x0128 -#define SSB_CHIPCO_FLASH_WAITCNT 0x012C -#define SSB_CHIPCO_UART0_DATA 0x0300 -#define SSB_CHIPCO_UART0_IMR 0x0304 -#define SSB_CHIPCO_UART0_FCR 0x0308 -#define SSB_CHIPCO_UART0_LCR 0x030C -#define SSB_CHIPCO_UART0_MCR 0x0310 -#define SSB_CHIPCO_UART0_LSR 0x0314 -#define SSB_CHIPCO_UART0_MSR 0x0318 -#define SSB_CHIPCO_UART0_SCRATCH 0x031C -#define SSB_CHIPCO_UART1_DATA 0x0400 -#define SSB_CHIPCO_UART1_IMR 0x0404 -#define SSB_CHIPCO_UART1_FCR 0x0408 -#define SSB_CHIPCO_UART1_LCR 0x040C -#define SSB_CHIPCO_UART1_MCR 0x0410 -#define SSB_CHIPCO_UART1_LSR 0x0414 -#define SSB_CHIPCO_UART1_MSR 0x0418 -#define SSB_CHIPCO_UART1_SCRATCH 0x041C - - - -/** Clockcontrol masks and values **/ - -/* SSB_CHIPCO_CLOCK_N */ -#define SSB_CHIPCO_CLK_N1 0x0000003F /* n1 control */ -#define SSB_CHIPCO_CLK_N2 0x00003F00 /* n2 control */ -#define SSB_CHIPCO_CLK_N2_SHIFT 8 -#define SSB_CHIPCO_CLK_PLLC 0x000F0000 /* pll control */ -#define SSB_CHIPCO_CLK_PLLC_SHIFT 16 - -/* SSB_CHIPCO_CLOCK_SB/PCI/UART */ -#define SSB_CHIPCO_CLK_M1 0x0000003F /* m1 control */ -#define SSB_CHIPCO_CLK_M2 0x00003F00 /* m2 control */ -#define SSB_CHIPCO_CLK_M2_SHIFT 8 -#define SSB_CHIPCO_CLK_M3 0x003F0000 /* m3 control */ -#define SSB_CHIPCO_CLK_M3_SHIFT 16 -#define SSB_CHIPCO_CLK_MC 0x1F000000 /* mux control */ -#define SSB_CHIPCO_CLK_MC_SHIFT 24 - -/* N3M Clock control magic field values */ -#define SSB_CHIPCO_CLK_F6_2 0x02 /* A factor of 2 in */ -#define SSB_CHIPCO_CLK_F6_3 0x03 /* 6-bit fields like */ -#define SSB_CHIPCO_CLK_F6_4 0x05 /* N1, M1 or M3 */ -#define SSB_CHIPCO_CLK_F6_5 0x09 -#define SSB_CHIPCO_CLK_F6_6 0x11 -#define SSB_CHIPCO_CLK_F6_7 0x21 - -#define SSB_CHIPCO_CLK_F5_BIAS 5 /* 5-bit fields get this added */ - -#define SSB_CHIPCO_CLK_MC_BYPASS 0x08 -#define SSB_CHIPCO_CLK_MC_M1 0x04 -#define SSB_CHIPCO_CLK_MC_M1M2 0x02 -#define SSB_CHIPCO_CLK_MC_M1M2M3 0x01 -#define SSB_CHIPCO_CLK_MC_M1M3 0x11 - -/* Type 2 Clock control magic field values */ -#define SSB_CHIPCO_CLK_T2_BIAS 2 /* n1, n2, m1 & m3 bias */ -#define SSB_CHIPCO_CLK_T2M2_BIAS 3 /* m2 bias */ - -#define SSB_CHIPCO_CLK_T2MC_M1BYP 1 -#define SSB_CHIPCO_CLK_T2MC_M2BYP 2 -#define SSB_CHIPCO_CLK_T2MC_M3BYP 4 - -/* Type 6 Clock control magic field values */ -#define SSB_CHIPCO_CLK_T6_MMASK 1 /* bits of interest in m */ -#define SSB_CHIPCO_CLK_T6_M0 120000000 /* sb clock for m = 0 */ -#define SSB_CHIPCO_CLK_T6_M1 100000000 /* sb clock for m = 1 */ -#define SSB_CHIPCO_CLK_SB2MIPS_T6(sb) (2 * (sb)) - -/* Common clock base */ -#define SSB_CHIPCO_CLK_BASE1 24000000 /* Half the clock freq */ -#define SSB_CHIPCO_CLK_BASE2 12500000 /* Alternate crystal on some PLL's */ - -/* Clock control values for 200Mhz in 5350 */ -#define SSB_CHIPCO_CLK_5350_N 0x0311 -#define SSB_CHIPCO_CLK_5350_M 0x04020009 - - -/** Bits in the config registers **/ - -#define SSB_CHIPCO_CFG_EN 0x0001 /* Enable */ -#define SSB_CHIPCO_CFG_EXTM 0x000E /* Extif Mode */ -#define SSB_CHIPCO_CFG_EXTM_ASYNC 0x0002 /* Async/Parallel flash */ -#define SSB_CHIPCO_CFG_EXTM_SYNC 0x0004 /* Synchronous */ -#define SSB_CHIPCO_CFG_EXTM_PCMCIA 0x0008 /* PCMCIA */ -#define SSB_CHIPCO_CFG_EXTM_IDE 0x000A /* IDE */ -#define SSB_CHIPCO_CFG_DS16 0x0010 /* Data size, 0=8bit, 1=16bit */ -#define SSB_CHIPCO_CFG_CLKDIV 0x0060 /* Sync: Clock divisor */ -#define SSB_CHIPCO_CFG_CLKEN 0x0080 /* Sync: Clock enable */ -#define SSB_CHIPCO_CFG_BSTRO 0x0100 /* Sync: Size/Bytestrobe */ - - -/** Flash-specific control/status values */ - -/* flashcontrol opcodes for ST flashes */ -#define SSB_CHIPCO_FLASHCTL_ST_WREN 0x0006 /* Write Enable */ -#define SSB_CHIPCO_FLASHCTL_ST_WRDIS 0x0004 /* Write Disable */ -#define SSB_CHIPCO_FLASHCTL_ST_RDSR 0x0105 /* Read Status Register */ -#define SSB_CHIPCO_FLASHCTL_ST_WRSR 0x0101 /* Write Status Register */ -#define SSB_CHIPCO_FLASHCTL_ST_READ 0x0303 /* Read Data Bytes */ -#define SSB_CHIPCO_FLASHCTL_ST_PP 0x0302 /* Page Program */ -#define SSB_CHIPCO_FLASHCTL_ST_SE 0x02D8 /* Sector Erase */ -#define SSB_CHIPCO_FLASHCTL_ST_BE 0x00C7 /* Bulk Erase */ -#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00B9 /* Deep Power-down */ -#define SSB_CHIPCO_FLASHCTL_ST_RSIG 0x03AB /* Read Electronic Signature */ - -/* Status register bits for ST flashes */ -#define SSB_CHIPCO_FLASHSTA_ST_WIP 0x01 /* Write In Progress */ -#define SSB_CHIPCO_FLASHSTA_ST_WEL 0x02 /* Write Enable Latch */ -#define SSB_CHIPCO_FLASHSTA_ST_BP 0x1C /* Block Protect */ -#define SSB_CHIPCO_FLASHSTA_ST_BP_SHIFT 2 -#define SSB_CHIPCO_FLASHSTA_ST_SRWD 0x80 /* Status Register Write Disable */ - -/* flashcontrol opcodes for Atmel flashes */ -#define SSB_CHIPCO_FLASHCTL_AT_READ 0x07E8 -#define SSB_CHIPCO_FLASHCTL_AT_PAGE_READ 0x07D2 -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_READ /* FIXME */ -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_READ /* FIXME */ -#define SSB_CHIPCO_FLASHCTL_AT_STATUS 0x01D7 -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_WRITE 0x0384 -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_WRITE 0x0387 -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_ERASE_PRGM 0x0283 /* Erase program */ -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_ERASE_PRGM 0x0286 /* Erase program */ -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_PROGRAM 0x0288 -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_PROGRAM 0x0289 -#define SSB_CHIPCO_FLASHCTL_AT_PAGE_ERASE 0x0281 -#define SSB_CHIPCO_FLASHCTL_AT_BLOCK_ERASE 0x0250 -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_WRER_PRGM 0x0382 /* Write erase program */ -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_WRER_PRGM 0x0385 /* Write erase program */ -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_LOAD 0x0253 -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_LOAD 0x0255 -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_COMPARE 0x0260 -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_COMPARE 0x0261 -#define SSB_CHIPCO_FLASHCTL_AT_BUF1_REPROGRAM 0x0258 -#define SSB_CHIPCO_FLASHCTL_AT_BUF2_REPROGRAM 0x0259 - -/* Status register bits for Atmel flashes */ -#define SSB_CHIPCO_FLASHSTA_AT_READY 0x80 -#define SSB_CHIPCO_FLASHSTA_AT_MISMATCH 0x40 -#define SSB_CHIPCO_FLASHSTA_AT_ID 0x38 -#define SSB_CHIPCO_FLASHSTA_AT_ID_SHIFT 3 - - -/** OTP **/ - -/* OTP regions */ -#define SSB_CHIPCO_OTP_HW_REGION SSB_CHIPCO_OTPS_HW_PROTECT -#define SSB_CHIPCO_OTP_SW_REGION SSB_CHIPCO_OTPS_SW_PROTECT -#define SSB_CHIPCO_OTP_CID_REGION SSB_CHIPCO_OTPS_CID_PROTECT - -/* OTP regions (Byte offsets from otp size) */ -#define SSB_CHIPCO_OTP_SWLIM_OFF (-8) -#define SSB_CHIPCO_OTP_CIDBASE_OFF 0 -#define SSB_CHIPCO_OTP_CIDLIM_OFF 8 - -/* Predefined OTP words (Word offset from otp size) */ -#define SSB_CHIPCO_OTP_BOUNDARY_OFF (-4) -#define SSB_CHIPCO_OTP_HWSIGN_OFF (-3) -#define SSB_CHIPCO_OTP_SWSIGN_OFF (-2) -#define SSB_CHIPCO_OTP_CIDSIGN_OFF (-1) - -#define SSB_CHIPCO_OTP_CID_OFF 0 -#define SSB_CHIPCO_OTP_PKG_OFF 1 -#define SSB_CHIPCO_OTP_FID_OFF 2 -#define SSB_CHIPCO_OTP_RSV_OFF 3 -#define SSB_CHIPCO_OTP_LIM_OFF 4 - -#define SSB_CHIPCO_OTP_SIGNATURE 0x578A -#define SSB_CHIPCO_OTP_MAGIC 0x4E56 - - -struct ssb_device; -struct ssb_serial_port; - -struct ssb_chipcommon { - struct ssb_device *dev; - u32 capabilities; - /* Fast Powerup Delay constant */ - u16 fast_pwrup_delay; -}; - -extern void ssb_chipcommon_init(struct ssb_chipcommon *cc); - -#include <linux/pm.h> -extern void ssb_chipco_suspend(struct ssb_chipcommon *cc, pm_message_t state); -extern void ssb_chipco_resume(struct ssb_chipcommon *cc); - -extern void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, - u32 *plltype, u32 *n, u32 *m); -extern void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc, - u32 *plltype, u32 *n, u32 *m); -extern void ssb_chipco_timing_init(struct ssb_chipcommon *cc, - unsigned long ns_per_cycle); - -enum ssb_clkmode { - SSB_CLKMODE_SLOW, - SSB_CLKMODE_FAST, - SSB_CLKMODE_DYNAMIC, -}; - -extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc, - enum ssb_clkmode mode); - -extern void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, - u32 ticks); - -u32 ssb_chipco_gpio_in(struct ssb_chipcommon *cc, u32 mask); - -void ssb_chipco_gpio_out(struct ssb_chipcommon *cc, u32 mask, u32 value); - -void ssb_chipco_gpio_outen(struct ssb_chipcommon *cc, u32 mask, u32 value); - -#ifdef CONFIG_SSB_SERIAL -extern int ssb_chipco_serial_init(struct ssb_chipcommon *cc, - struct ssb_serial_port *ports); -#endif /* CONFIG_SSB_SERIAL */ - -#endif /* LINUX_SSB_CHIPCO_H_ */ diff --git a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_extif.h b/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_extif.h deleted file mode 100644 index a916435..0000000 --- a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_extif.h +++ /dev/null @@ -1,204 +0,0 @@ -/* - * Hardware-specific External Interface I/O core definitions - * for the BCM47xx family of SiliconBackplane-based chips. - * - * The External Interface core supports a total of three external chip selects - * supporting external interfaces. One of the external chip selects is - * used for Flash, one is used for PCMCIA, and the other may be - * programmed to support either a synchronous interface or an - * asynchronous interface. The asynchronous interface can be used to - * support external devices such as UARTs and the BCM2019 Bluetooth - * baseband processor. - * The external interface core also contains 2 on-chip 16550 UARTs, clock - * frequency control, a watchdog interrupt timer, and a GPIO interface. - * - * Copyright 2005, Broadcom Corporation - * Copyright 2006, Michael Buesch - * - * Licensed under the GPL version 2. See COPYING for details. - */ -#ifndef LINUX_SSB_EXTIFCORE_H_ -#define LINUX_SSB_EXTIFCORE_H_ - -/* external interface address space */ -#define SSB_EXTIF_PCMCIA_MEMBASE(x) (x) -#define SSB_EXTIF_PCMCIA_IOBASE(x) ((x) + 0x100000) -#define SSB_EXTIF_PCMCIA_CFGBASE(x) ((x) + 0x200000) -#define SSB_EXTIF_CFGIF_BASE(x) ((x) + 0x800000) -#define SSB_EXTIF_FLASH_BASE(x) ((x) + 0xc00000) - -#define SSB_EXTIF_NR_GPIOOUT 5 -/* GPIO NOTE: - * The multiple instances of output and output enable registers - * are present to allow driver software for multiple cores to control - * gpio outputs without needing to share a single register pair. - * Use the following helper macro to get a register offset value. - */ -#define SSB_EXTIF_GPIO_OUT(index) ({ \ - BUILD_BUG_ON(index >= SSB_EXTIF_NR_GPIOOUT); \ - SSB_EXTIF_GPIO_OUT_BASE + ((index) * 8); \ - }) -#define SSB_EXTIF_GPIO_OUTEN(index) ({ \ - BUILD_BUG_ON(index >= SSB_EXTIF_NR_GPIOOUT); \ - SSB_EXTIF_GPIO_OUTEN_BASE + ((index) * 8); \ - }) - -/** EXTIF core registers **/ - -#define SSB_EXTIF_CTL 0x0000 -#define SSB_EXTIF_CTL_UARTEN (1 << 0) /* UART enable */ -#define SSB_EXTIF_EXTSTAT 0x0004 -#define SSB_EXTIF_EXTSTAT_EMODE (1 << 0) /* Endian mode (ro) */ -#define SSB_EXTIF_EXTSTAT_EIRQPIN (1 << 1) /* External interrupt pin (ro) */ -#define SSB_EXTIF_EXTSTAT_GPIOIRQPIN (1 << 2) /* GPIO interrupt pin (ro) */ -#define SSB_EXTIF_PCMCIA_CFG 0x0010 -#define SSB_EXTIF_PCMCIA_MEMWAIT 0x0014 -#define SSB_EXTIF_PCMCIA_ATTRWAIT 0x0018 -#define SSB_EXTIF_PCMCIA_IOWAIT 0x001C -#define SSB_EXTIF_PROG_CFG 0x0020 -#define SSB_EXTIF_PROG_WAITCNT 0x0024 -#define SSB_EXTIF_FLASH_CFG 0x0028 -#define SSB_EXTIF_FLASH_WAITCNT 0x002C -#define SSB_EXTIF_WATCHDOG 0x0040 -#define SSB_EXTIF_CLOCK_N 0x0044 -#define SSB_EXTIF_CLOCK_SB 0x0048 -#define SSB_EXTIF_CLOCK_PCI 0x004C -#define SSB_EXTIF_CLOCK_MII 0x0050 -#define SSB_EXTIF_GPIO_IN 0x0060 -#define SSB_EXTIF_GPIO_OUT_BASE 0x0064 -#define SSB_EXTIF_GPIO_OUTEN_BASE 0x0068 -#define SSB_EXTIF_EJTAG_OUTEN 0x0090 -#define SSB_EXTIF_GPIO_INTPOL 0x0094 -#define SSB_EXTIF_GPIO_INTMASK 0x0098 -#define SSB_EXTIF_UART_DATA 0x0300 -#define SSB_EXTIF_UART_TIMER 0x0310 -#define SSB_EXTIF_UART_FCR 0x0320 -#define SSB_EXTIF_UART_LCR 0x0330 -#define SSB_EXTIF_UART_MCR 0x0340 -#define SSB_EXTIF_UART_LSR 0x0350 -#define SSB_EXTIF_UART_MSR 0x0360 -#define SSB_EXTIF_UART_SCRATCH 0x0370 - - - - -/* pcmcia/prog/flash_config */ -#define SSB_EXTCFG_EN (1 << 0) /* enable */ -#define SSB_EXTCFG_MODE 0xE /* mode */ -#define SSB_EXTCFG_MODE_SHIFT 1 -#define SSB_EXTCFG_MODE_FLASH 0x0 /* flash/asynchronous mode */ -#define SSB_EXTCFG_MODE_SYNC 0x2 /* synchronous mode */ -#define SSB_EXTCFG_MODE_PCMCIA 0x4 /* pcmcia mode */ -#define SSB_EXTCFG_DS16 (1 << 4) /* destsize: 0=8bit, 1=16bit */ -#define SSB_EXTCFG_BSWAP (1 << 5) /* byteswap */ -#define SSB_EXTCFG_CLKDIV 0xC0 /* clock divider */ -#define SSB_EXTCFG_CLKDIV_SHIFT 6 -#define SSB_EXTCFG_CLKDIV_2 0x0 /* backplane/2 */ -#define SSB_EXTCFG_CLKDIV_3 0x40 /* backplane/3 */ -#define SSB_EXTCFG_CLKDIV_4 0x80 /* backplane/4 */ -#define SSB_EXTCFG_CLKEN (1 << 8) /* clock enable */ -#define SSB_EXTCFG_STROBE (1 << 9) /* size/bytestrobe (synch only) */ - -/* pcmcia_memwait */ -#define SSB_PCMCIA_MEMW_0 0x0000003F /* waitcount0 */ -#define SSB_PCMCIA_MEMW_1 0x00001F00 /* waitcount1 */ -#define SSB_PCMCIA_MEMW_1_SHIFT 8 -#define SSB_PCMCIA_MEMW_2 0x001F0000 /* waitcount2 */ -#define SSB_PCMCIA_MEMW_2_SHIFT 16 -#define SSB_PCMCIA_MEMW_3 0x1F000000 /* waitcount3 */ -#define SSB_PCMCIA_MEMW_3_SHIFT 24 - -/* pcmcia_attrwait */ -#define SSB_PCMCIA_ATTW_0 0x0000003F /* waitcount0 */ -#define SSB_PCMCIA_ATTW_1 0x00001F00 /* waitcount1 */ -#define SSB_PCMCIA_ATTW_1_SHIFT 8 -#define SSB_PCMCIA_ATTW_2 0x001F0000 /* waitcount2 */ -#define SSB_PCMCIA_ATTW_2_SHIFT 16 -#define SSB_PCMCIA_ATTW_3 0x1F000000 /* waitcount3 */ -#define SSB_PCMCIA_ATTW_3_SHIFT 24 - -/* pcmcia_iowait */ -#define SSB_PCMCIA_IOW_0 0x0000003F /* waitcount0 */ -#define SSB_PCMCIA_IOW_1 0x00001F00 /* waitcount1 */ -#define SSB_PCMCIA_IOW_1_SHIFT 8 -#define SSB_PCMCIA_IOW_2 0x001F0000 /* waitcount2 */ -#define SSB_PCMCIA_IOW_2_SHIFT 16 -#define SSB_PCMCIA_IOW_3 0x1F000000 /* waitcount3 */ -#define SSB_PCMCIA_IOW_3_SHIFT 24 - -/* prog_waitcount */ -#define SSB_PROG_WCNT_0 0x0000001F /* waitcount0 */ -#define SSB_PROG_WCNT_1 0x00001F00 /* waitcount1 */ -#define SSB_PROG_WCNT_1_SHIFT 8 -#define SSB_PROG_WCNT_2 0x001F0000 /* waitcount2 */ -#define SSB_PROG_WCNT_2_SHIFT 16 -#define SSB_PROG_WCNT_3 0x1F000000 /* waitcount3 */ -#define SSB_PROG_WCNT_3_SHIFT 24 - -#define SSB_PROG_W0 0x0000000C -#define SSB_PROG_W1 0x00000A00 -#define SSB_PROG_W2 0x00020000 -#define SSB_PROG_W3 0x01000000 - -/* flash_waitcount */ -#define SSB_FLASH_WCNT_0 0x0000001F /* waitcount0 */ -#define SSB_FLASH_WCNT_1 0x00001F00 /* waitcount1 */ -#define SSB_FLASH_WCNT_1_SHIFT 8 -#define SSB_FLASH_WCNT_2 0x001F0000 /* waitcount2 */ -#define SSB_FLASH_WCNT_2_SHIFT 16 -#define SSB_FLASH_WCNT_3 0x1F000000 /* waitcount3 */ -#define SSB_FLASH_WCNT_3_SHIFT 24 - -/* watchdog */ -#define SSB_EXTIF_WATCHDOG_CLK 48000000 /* Hz */ - - - -#ifdef CONFIG_SSB_DRIVER_EXTIF - -struct ssb_extif { - struct ssb_device *dev; -}; - -static inline bool ssb_extif_available(struct ssb_extif *extif) -{ - return (extif->dev != NULL); -} - -extern void ssb_extif_get_clockcontrol(struct ssb_extif *extif, - u32 *plltype, u32 *n, u32 *m); - -extern void ssb_extif_timing_init(struct ssb_extif *extif, - unsigned long ns); - -u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask); - -void ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value); - -void ssb_extif_gpio_outen(struct ssb_extif *extif, u32 mask, u32 value); - -#ifdef CONFIG_SSB_SERIAL -extern int ssb_extif_serial_init(struct ssb_extif *extif, - struct ssb_serial_port *ports); -#endif /* CONFIG_SSB_SERIAL */ - - -#else /* CONFIG_SSB_DRIVER_EXTIF */ -/* extif disabled */ - -struct ssb_extif { -}; - -static inline bool ssb_extif_available(struct ssb_extif *extif) -{ - return 0; -} - -static inline -void ssb_extif_get_clockcontrol(struct ssb_extif *extif, - u32 *plltype, u32 *n, u32 *m) -{ -} - -#endif /* CONFIG_SSB_DRIVER_EXTIF */ -#endif /* LINUX_SSB_EXTIFCORE_H_ */ diff --git a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_mips.h b/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_mips.h deleted file mode 100644 index 5f44e97..0000000 --- a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_mips.h +++ /dev/null @@ -1,46 +0,0 @@ -#ifndef LINUX_SSB_MIPSCORE_H_ -#define LINUX_SSB_MIPSCORE_H_ - -#ifdef CONFIG_SSB_DRIVER_MIPS - -struct ssb_device; - -struct ssb_serial_port { - void *regs; - unsigned long clockspeed; - unsigned int irq; - unsigned int baud_base; - unsigned int reg_shift; -}; - - -struct ssb_mipscore { - struct ssb_device *dev; - - int nr_serial_ports; - struct ssb_serial_port serial_ports[4]; - - u8 flash_buswidth; - u32 flash_window; - u32 flash_window_size; -}; - -extern void ssb_mipscore_init(struct ssb_mipscore *mcore); -extern u32 ssb_cpu_clock(struct ssb_mipscore *mcore); - -extern unsigned int ssb_mips_irq(struct ssb_device *dev); - - -#else /* CONFIG_SSB_DRIVER_MIPS */ - -struct ssb_mipscore { -}; - -static inline -void ssb_mipscore_init(struct ssb_mipscore *mcore) -{ -} - -#endif /* CONFIG_SSB_DRIVER_MIPS */ - -#endif /* LINUX_SSB_MIPSCORE_H_ */ diff --git a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_pci.h b/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_pci.h deleted file mode 100644 index 9cfffb7..0000000 --- a/target/linux/generic-2.6/files/include/linux/ssb/ssb_driver_pci.h +++ /dev/null @@ -1,106 +0,0 @@ -#ifndef LINUX_SSB_PCICORE_H_ -#define LINUX_SSB_PCICORE_H_ - -#ifdef CONFIG_SSB_DRIVER_PCICORE - -/* PCI core registers. */ -#define SSB_PCICORE_CTL 0x0000 /* PCI Control */ -#define SSB_PCICORE_CTL_RST_OE 0x00000001 /* PCI_RESET Output Enable */ -#define SSB_PCICORE_CTL_RST 0x00000002 /* PCI_RESET driven out to pin */ -#define SSB_PCICORE_CTL_CLK_OE 0x00000004 /* Clock gate Output Enable */ -#define SSB_PCICORE_CTL_CLK 0x00000008 /* Gate for clock driven out to pin */ -#define SSB_PCICORE_ARBCTL 0x0010 /* PCI Arbiter Control */ -#define SSB_PCICORE_ARBCTL_INTERN 0x00000001 /* Use internal arbiter */ -#define SSB_PCICORE_ARBCTL_EXTERN 0x00000002 /* Use external arbiter */ -#define SSB_PCICORE_ARBCTL_PARKID 0x00000006 /* Mask, selects which agent is parked on an idle bus */ -#define SSB_PCICORE_ARBCTL_PARKID_LAST 0x00000000 /* Last requestor */ -#define SSB_PCICORE_ARBCTL_PARKID_4710 0x00000002 /* 4710 */ -#define SSB_PCICORE_ARBCTL_PARKID_EXT0 0x00000004 /* External requestor 0 */ -#define SSB_PCICORE_ARBCTL_PARKID_EXT1 0x00000006 /* External requestor 1 */ -#define SSB_PCICORE_ISTAT 0x0020 /* Interrupt status */ -#define SSB_PCICORE_ISTAT_INTA 0x00000001 /* PCI INTA# */ -#define SSB_PCICORE_ISTAT_INTB 0x00000002 /* PCI INTB# */ -#define SSB_PCICORE_ISTAT_SERR 0x00000004 /* PCI SERR# (write to clear) */ -#define SSB_PCICORE_ISTAT_PERR 0x00000008 /* PCI PERR# (write to clear) */ -#define SSB_PCICORE_ISTAT_PME 0x00000010 /* PCI PME# */ -#define SSB_PCICORE_IMASK 0x0024 /* Interrupt mask */ -#define SSB_PCICORE_IMASK_INTA 0x00000001 /* PCI INTA# */ -#define SSB_PCICORE_IMASK_INTB 0x00000002 /* PCI INTB# */ -#define SSB_PCICORE_IMASK_SERR 0x00000004 /* PCI SERR# */ -#define SSB_PCICORE_IMASK_PERR 0x00000008 /* PCI PERR# */ -#define SSB_PCICORE_IMASK_PME 0x00000010 /* PCI PME# */ -#define SSB_PCICORE_MBOX 0x0028 /* Backplane to PCI Mailbox */ -#define SSB_PCICORE_MBOX_F0_0 0x00000100 /* PCI function 0, INT 0 */ -#define SSB_PCICORE_MBOX_F0_1 0x00000200 /* PCI function 0, INT 1 */ -#define SSB_PCICORE_MBOX_F1_0 0x00000400 /* PCI function 1, INT 0 */ -#define SSB_PCICORE_MBOX_F1_1 0x00000800 /* PCI function 1, INT 1 */ -#define SSB_PCICORE_MBOX_F2_0 0x00001000 /* PCI function 2, INT 0 */ -#define SSB_PCICORE_MBOX_F2_1 0x00002000 /* PCI function 2, INT 1 */ -#define SSB_PCICORE_MBOX_F3_0 0x00004000 /* PCI function 3, INT 0 */ -#define SSB_PCICORE_MBOX_F3_1 0x00008000 /* PCI function 3, INT 1 */ -#define SSB_PCICORE_BCAST_ADDR 0x0050 /* Backplane Broadcast Address */ -#define SSB_PCICORE_BCAST_ADDR_MASK 0x000000FF -#define SSB_PCICORE_BCAST_DATA 0x0054 /* Backplane Broadcast Data */ -#define SSB_PCICORE_GPIO_IN 0x0060 /* rev >= 2 only */ -#define SSB_PCICORE_GPIO_OUT 0x0064 /* rev >= 2 only */ -#define SSB_PCICORE_GPIO_ENABLE 0x0068 /* rev >= 2 only */ -#define SSB_PCICORE_GPIO_CTL 0x006C /* rev >= 2 only */ -#define SSB_PCICORE_SBTOPCI0 0x0100 /* Backplane to PCI translation 0 (sbtopci0) */ -#define SSB_PCICORE_SBTOPCI0_MASK 0xFC000000 -#define SSB_PCICORE_SBTOPCI1 0x0104 /* Backplane to PCI translation 1 (sbtopci1) */ -#define SSB_PCICORE_SBTOPCI1_MASK 0xFC000000 -#define SSB_PCICORE_SBTOPCI2 0x0108 /* Backplane to PCI translation 2 (sbtopci2) */ -#define SSB_PCICORE_SBTOPCI2_MASK 0xC0000000 - -/* SBtoPCIx */ -#define SSB_PCICORE_SBTOPCI_MEM 0x00000000 -#define SSB_PCICORE_SBTOPCI_IO 0x00000001 -#define SSB_PCICORE_SBTOPCI_CFG0 0x00000002 -#define SSB_PCICORE_SBTOPCI_CFG1 0x00000003 -#define SSB_PCICORE_SBTOPCI_PREF 0x00000004 /* Prefetch enable */ -#define SSB_PCICORE_SBTOPCI_BURST 0x00000008 /* Burst enable */ -#define SSB_PCICORE_SBTOPCI_MRM 0x00000020 /* Memory Read Multiple */ -#define SSB_PCICORE_SBTOPCI_RC 0x00000030 /* Read Command mask (rev >= 11) */ -#define SSB_PCICORE_SBTOPCI_RC_READ 0x00000000 /* Memory read */ -#define SSB_PCICORE_SBTOPCI_RC_READL 0x00000010 /* Memory read line */ -#define SSB_PCICORE_SBTOPCI_RC_READM 0x00000020 /* Memory read multiple */ - - -/* PCIcore specific boardflags */ -#define SSB_PCICORE_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */ - - -struct ssb_pcicore { - struct ssb_device *dev; - u8 setup_done:1; - u8 hostmode:1; - u8 cardbusmode:1; -}; - -extern void ssb_pcicore_init(struct ssb_pcicore *pc); - -/* Enable IRQ routing for a specific device */ -extern int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, - struct ssb_device *dev); - - -#else /* CONFIG_SSB_DRIVER_PCICORE */ - - -struct ssb_pcicore { -}; - -static inline -void ssb_pcicore_init(struct ssb_pcicore *pc) -{ -} - -static inline -int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, - struct ssb_device *dev) -{ - return 0; -} - -#endif /* CONFIG_SSB_DRIVER_PCICORE */ -#endif /* LINUX_SSB_PCICORE_H_ */ diff --git a/target/linux/generic-2.6/files/include/linux/ssb/ssb_regs.h b/target/linux/generic-2.6/files/include/linux/ssb/ssb_regs.h deleted file mode 100644 index ebad0ba..0000000 --- a/target/linux/generic-2.6/files/include/linux/ssb/ssb_regs.h +++ /dev/null @@ -1,357 +0,0 @@ -#ifndef LINUX_SSB_REGS_H_ -#define LINUX_SSB_REGS_H_ - - -/* SiliconBackplane Address Map. - * All regions may not exist on all chips. - */ -#define SSB_SDRAM_BASE 0x00000000U /* Physical SDRAM */ -#define SSB_PCI_MEM 0x08000000U /* Host Mode sb2pcitranslation0 (64 MB) */ -#define SSB_PCI_CFG 0x0c000000U /* Host Mode sb2pcitranslation1 (64 MB) */ -#define SSB_SDRAM_SWAPPED 0x10000000U /* Byteswapped Physical SDRAM */ -#define SSB_ENUM_BASE 0x18000000U /* Enumeration space base */ -#define SSB_ENUM_LIMIT 0x18010000U /* Enumeration space limit */ - -#define SSB_FLASH2 0x1c000000U /* Flash Region 2 (region 1 shadowed here) */ -#define SSB_FLASH2_SZ 0x02000000U /* Size of Flash Region 2 */ - -#define SSB_EXTIF_BASE 0x1f000000U /* External Interface region base address */ -#define SSB_FLASH1 0x1fc00000U /* Flash Region 1 */ -#define SSB_FLASH1_SZ 0x00400000U /* Size of Flash Region 1 */ - -#define SSB_PCI_DMA 0x40000000U /* Client Mode sb2pcitranslation2 (1 GB) */ -#define SSB_PCI_DMA_SZ 0x40000000U /* Client Mode sb2pcitranslation2 size in bytes */ -#define SSB_PCIE_DMA_L32 0x00000000U /* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), low 32 bits */ -#define SSB_PCIE_DMA_H32 0x80000000U /* PCIE Client Mode sb2pcitranslation2 (2 ZettaBytes), high 32 bits */ -#define SSB_EUART (SSB_EXTIF_BASE + 0x00800000) -#define SSB_LED (SSB_EXTIF_BASE + 0x00900000) - - -/* Enumeration space constants */ -#define SSB_CORE_SIZE 0x1000 /* Size of a core MMIO area */ -#define SSB_MAX_NR_CORES ((SSB_ENUM_LIMIT - SSB_ENUM_BASE) / SSB_CORE_SIZE) - - -/* mips address */ -#define SSB_EJTAG 0xff200000 /* MIPS EJTAG space (2M) */ - - -/* SSB PCI config space registers. */ -#define SSB_PMCSR 0x44 -#define SSB_PE 0x100 -#define SSB_BAR0_WIN 0x80 /* Backplane address space 0 */ -#define SSB_BAR1_WIN 0x84 /* Backplane address space 1 */ -#define SSB_SPROMCTL 0x88 /* SPROM control */ -#define SSB_SPROMCTL_WE 0x10 /* SPROM write enable */ -#define SSB_BAR1_CONTROL 0x8c /* Address space 1 burst control */ -#define SSB_PCI_IRQS 0x90 /* PCI interrupts */ -#define SSB_PCI_IRQMASK 0x94 /* PCI IRQ control and mask (pcirev >= 6 only) */ -#define SSB_BACKPLANE_IRQS 0x98 /* Backplane Interrupts */ -#define SSB_GPIO_IN 0xB0 /* GPIO Input (pcirev >= 3 only) */ -#define SSB_GPIO_OUT 0xB4 /* GPIO Output (pcirev >= 3 only) */ -#define SSB_GPIO_OUT_ENABLE 0xB8 /* GPIO Output Enable/Disable (pcirev >= 3 only) */ -#define SSB_GPIO_SCS 0x10 /* PCI config space bit 4 for 4306c0 slow clock source */ -#define SSB_GPIO_HWRAD 0x20 /* PCI config space GPIO 13 for hw radio disable */ -#define SSB_GPIO_XTAL 0x40 /* PCI config space GPIO 14 for Xtal powerup */ -#define SSB_GPIO_PLL 0x80 /* PCI config space GPIO 15 for PLL powerdown */ - - -#define SSB_BAR0_MAX_RETRIES 50 - -/* Silicon backplane configuration register definitions */ -#define SSB_IPSFLAG 0x0F08 -#define SSB_IPSFLAG_IRQ1 0x0000003F /* which sbflags get routed to mips interrupt 1 */ -#define SSB_IPSFLAG_IRQ1_SHIFT 0 -#define SSB_IPSFLAG_IRQ2 0x00003F00 /* which sbflags get routed to mips interrupt 2 */ -#define SSB_IPSFLAG_IRQ2_SHIFT 8 -#define SSB_IPSFLAG_IRQ3 0x003F0000 /* which sbflags get routed to mips interrupt 3 */ -#define SSB_IPSFLAG_IRQ3_SHIFT 16 -#define SSB_IPSFLAG_IRQ4 0x3F000000 /* which sbflags get routed to mips interrupt 4 */ -#define SSB_IPSFLAG_IRQ4_SHIFT 24 -#define SSB_TPSFLAG 0x0F18 -#define SSB_TPSFLAG_BPFLAG 0x0000003F /* Backplane flag # */ -#define SSB_TPSFLAG_ALWAYSIRQ 0x00000040 /* IRQ is always sent on the Backplane */ -#define SSB_TMERRLOGA 0x0F48 -#define SSB_TMERRLOG 0x0F50 -#define SSB_ADMATCH3 0x0F60 -#define SSB_ADMATCH2 0x0F68 -#define SSB_ADMATCH1 0x0F70 -#define SSB_IMSTATE 0x0F90 /* SB Initiator Agent State */ -#define SSB_IMSTATE_PC 0x0000000f /* Pipe Count */ -#define SSB_IMSTATE_AP_MASK 0x00000030 /* Arbitration Priority */ -#define SSB_IMSTATE_AP_BOTH 0x00000000 /* Use both timeslices and token */ -#define SSB_IMSTATE_AP_TS 0x00000010 /* Use timeslices only */ -#define SSB_IMSTATE_AP_TK 0x00000020 /* Use token only */ -#define SSB_IMSTATE_AP_RSV 0x00000030 /* Reserved */ -#define SSB_IMSTATE_IBE 0x00020000 /* In Band Error */ -#define SSB_IMSTATE_TO 0x00040000 /* Timeout */ -#define SSB_INTVEC 0x0F94 /* SB Interrupt Mask */ -#define SSB_INTVEC_PCI 0x00000001 /* Enable interrupts for PCI */ -#define SSB_INTVEC_ENET0 0x00000002 /* Enable interrupts for enet 0 */ -#define SSB_INTVEC_ILINE20 0x00000004 /* Enable interrupts for iline20 */ -#define SSB_INTVEC_CODEC 0x00000008 /* Enable interrupts for v90 codec */ -#define SSB_INTVEC_USB 0x00000010 /* Enable interrupts for usb */ -#define SSB_INTVEC_EXTIF 0x00000020 /* Enable interrupts for external i/f */ -#define SSB_INTVEC_ENET1 0x00000040 /* Enable interrupts for enet 1 */ -#define SSB_TMSLOW 0x0F98 /* SB Target State Low */ -#define SSB_TMSLOW_RESET 0x00000001 /* Reset */ -#define SSB_TMSLOW_REJECT_22 0x00000002 /* Reject (Backplane rev 2.2) */ -#define SSB_TMSLOW_REJECT_23 0x00000004 /* Reject (Backplane rev 2.3) */ -#define SSB_TMSLOW_CLOCK 0x00010000 /* Clock Enable */ -#define SSB_TMSLOW_FGC 0x00020000 /* Force Gated Clocks On */ -#define SSB_TMSLOW_PE 0x40000000 /* Power Management Enable */ -#define SSB_TMSLOW_BE 0x80000000 /* BIST Enable */ -#define SSB_TMSHIGH 0x0F9C /* SB Target State High */ -#define SSB_TMSHIGH_SERR 0x00000001 /* S-error */ -#define SSB_TMSHIGH_INT 0x00000002 /* Interrupt */ -#define SSB_TMSHIGH_BUSY 0x00000004 /* Busy */ -#define SSB_TMSHIGH_TO 0x00000020 /* Timeout. Backplane rev >= 2.3 only */ -#define SSB_TMSHIGH_COREFL 0x1FFF0000 /* Core specific flags */ -#define SSB_TMSHIGH_COREFL_SHIFT 16 -#define SSB_TMSHIGH_DMA64 0x10000000 /* 64bit DMA supported */ -#define SSB_TMSHIGH_GCR 0x20000000 /* Gated Clock Request */ -#define SSB_TMSHIGH_BISTF 0x40000000 /* BIST Failed */ -#define SSB_TMSHIGH_BISTD 0x80000000 /* BIST Done */ -#define SSB_BWA0 0x0FA0 -#define SSB_IMCFGLO 0x0FA8 -#define SSB_IMCFGLO_SERTO 0x00000007 /* Service timeout */ -#define SSB_IMCFGLO_REQTO 0x00000070 /* Request timeout */ -#define SSB_IMCFGLO_REQTO_SHIFT 4 -#define SSB_IMCFGLO_CONNID 0x00FF0000 /* Connection ID */ -#define SSB_IMCFGLO_CONNID_SHIFT 16 -#define SSB_IMCFGHI 0x0FAC -#define SSB_ADMATCH0 0x0FB0 -#define SSB_TMCFGLO 0x0FB8 -#define SSB_TMCFGHI 0x0FBC -#define SSB_BCONFIG 0x0FC0 -#define SSB_BSTATE 0x0FC8 -#define SSB_ACTCFG 0x0FD8 -#define SSB_FLAGST 0x0FE8 -#define SSB_IDLOW 0x0FF8 -#define SSB_IDLOW_CFGSP 0x00000003 /* Config Space */ -#define SSB_IDLOW_ADDRNGE 0x00000038 /* Address Ranges supported */ -#define SSB_IDLOW_ADDRNGE_SHIFT 3 -#define SSB_IDLOW_SYNC 0x00000040 -#define SSB_IDLOW_INITIATOR 0x00000080 -#define SSB_IDLOW_MIBL 0x00000F00 /* Minimum Backplane latency */ -#define SSB_IDLOW_MIBL_SHIFT 8 -#define SSB_IDLOW_MABL 0x0000F000 /* Maximum Backplane latency */ -#define SSB_IDLOW_MABL_SHIFT 12 -#define SSB_IDLOW_TIF 0x00010000 /* This Initiator is first */ -#define SSB_IDLOW_CCW 0x000C0000 /* Cycle counter width */ -#define SSB_IDLOW_CCW_SHIFT 18 -#define SSB_IDLOW_TPT 0x00F00000 /* Target ports */ -#define SSB_IDLOW_TPT_SHIFT 20 -#define SSB_IDLOW_INITP 0x0F000000 /* Initiator ports */ -#define SSB_IDLOW_INITP_SHIFT 24 -#define SSB_IDLOW_SSBREV 0xF0000000 /* Sonics Backplane Revision code */ -#define SSB_IDLOW_SSBREV_22 0x00000000 /* <= 2.2 */ -#define SSB_IDLOW_SSBREV_23 0x10000000 /* 2.3 */ -#define SSB_IDLOW_SSBREV_24 0x40000000 /* ?? Found in BCM4328 */ -#define SSB_IDLOW_SSBREV_25 0x50000000 /* ?? Not Found yet */ -#define SSB_IDLOW_SSBREV_26 0x60000000 /* ?? Found in some BCM4311/2 */ -#define SSB_IDLOW_SSBREV_27 0x70000000 /* ?? Found in some BCM4311/2 */ -#define SSB_IDHIGH 0x0FFC /* SB Identification High */ -#define SSB_IDHIGH_RCLO 0x0000000F /* Revision Code (low part) */ -#define SSB_IDHIGH_CC 0x00008FF0 /* Core Code */ -#define SSB_IDHIGH_CC_SHIFT 4 -#define SSB_IDHIGH_RCHI 0x00007000 /* Revision Code (high part) */ -#define SSB_IDHIGH_RCHI_SHIFT 8 /* yes, shift 8 is right */ -#define SSB_IDHIGH_VC 0xFFFF0000 /* Vendor Code */ -#define SSB_IDHIGH_VC_SHIFT 16 - -/* SPROM shadow area. If not otherwise noted, fields are - * two bytes wide. Note that the SPROM can _only_ be read - * in two-byte quantinies. - */ -#define SSB_SPROMSIZE_WORDS 64 -#define SSB_SPROMSIZE_BYTES (SSB_SPROMSIZE_WORDS * sizeof(u16)) -#define SSB_SPROMSIZE_WORDS_R123 64 -#define SSB_SPROMSIZE_WORDS_R4 220 -#define SSB_SPROMSIZE_BYTES_R123 (SSB_SPROMSIZE_WORDS_R123 * sizeof(u16)) -#define SSB_SPROMSIZE_BYTES_R4 (SSB_SPROMSIZE_WORDS_R4 * sizeof(u16)) -#define SSB_SPROM_BASE 0x1000 -#define SSB_SPROM_REVISION 0x107E -#define SSB_SPROM_REVISION_REV 0x00FF /* SPROM Revision number */ -#define SSB_SPROM_REVISION_CRC 0xFF00 /* SPROM CRC8 value */ -#define SSB_SPROM_REVISION_CRC_SHIFT 8 - -/* SPROM Revision 1 */ -#define SSB_SPROM1_SPID 0x1004 /* Subsystem Product ID for PCI */ -#define SSB_SPROM1_SVID 0x1006 /* Subsystem Vendor ID for PCI */ -#define SSB_SPROM1_PID 0x1008 /* Product ID for PCI */ -#define SSB_SPROM1_IL0MAC 0x1048 /* 6 bytes MAC address for 802.11b/g */ -#define SSB_SPROM1_ET0MAC 0x104E /* 6 bytes MAC address for Ethernet */ -#define SSB_SPROM1_ET1MAC 0x1054 /* 6 bytes MAC address for 802.11a */ -#define SSB_SPROM1_ETHPHY 0x105A /* Ethernet PHY settings */ -#define SSB_SPROM1_ETHPHY_ET0A 0x001F /* MII Address for enet0 */ -#define SSB_SPROM1_ETHPHY_ET1A 0x03E0 /* MII Address for enet1 */ -#define SSB_SPROM1_ETHPHY_ET1A_SHIFT 5 -#define SSB_SPROM1_ETHPHY_ET0M (1<<14) /* MDIO for enet0 */ -#define SSB_SPROM1_ETHPHY_ET1M (1<<15) /* MDIO for enet1 */ -#define SSB_SPROM1_BINF 0x105C /* Board info */ -#define SSB_SPROM1_BINF_BREV 0x00FF /* Board Revision */ -#define SSB_SPROM1_BINF_CCODE 0x0F00 /* Country Code */ -#define SSB_SPROM1_BINF_CCODE_SHIFT 8 -#define SSB_SPROM1_BINF_ANTBG 0x3000 /* Available B-PHY and G-PHY antennas */ -#define SSB_SPROM1_BINF_ANTBG_SHIFT 12 -#define SSB_SPROM1_BINF_ANTA 0xC000 /* Available A-PHY antennas */ -#define SSB_SPROM1_BINF_ANTA_SHIFT 14 -#define SSB_SPROM1_PA0B0 0x105E -#define SSB_SPROM1_PA0B1 0x1060 -#define SSB_SPROM1_PA0B2 0x1062 -#define SSB_SPROM1_GPIOA 0x1064 /* General Purpose IO pins 0 and 1 */ -#define SSB_SPROM1_GPIOA_P0 0x00FF /* Pin 0 */ -#define SSB_SPROM1_GPIOA_P1 0xFF00 /* Pin 1 */ -#define SSB_SPROM1_GPIOA_P1_SHIFT 8 -#define SSB_SPROM1_GPIOB 0x1066 /* General Purpuse IO pins 2 and 3 */ -#define SSB_SPROM1_GPIOB_P2 0x00FF /* Pin 2 */ -#define SSB_SPROM1_GPIOB_P3 0xFF00 /* Pin 3 */ -#define SSB_SPROM1_GPIOB_P3_SHIFT 8 -#define SSB_SPROM1_MAXPWR 0x1068 /* Power Amplifier Max Power */ -#define SSB_SPROM1_MAXPWR_BG 0x00FF /* B-PHY and G-PHY (in dBm Q5.2) */ -#define SSB_SPROM1_MAXPWR_A 0xFF00 /* A-PHY (in dBm Q5.2) */ -#define SSB_SPROM1_MAXPWR_A_SHIFT 8 -#define SSB_SPROM1_PA1B0 0x106A -#define SSB_SPROM1_PA1B1 0x106C -#define SSB_SPROM1_PA1B2 0x106E -#define SSB_SPROM1_ITSSI 0x1070 /* Idle TSSI Target */ -#define SSB_SPROM1_ITSSI_BG 0x00FF /* B-PHY and G-PHY*/ -#define SSB_SPROM1_ITSSI_A 0xFF00 /* A-PHY */ -#define SSB_SPROM1_ITSSI_A_SHIFT 8 -#define SSB_SPROM1_BFLLO 0x1072 /* Boardflags (low 16 bits) */ -#define SSB_SPROM1_AGAIN 0x1074 /* Antenna Gain (in dBm Q5.2) */ -#define SSB_SPROM1_AGAIN_BG 0x00FF /* B-PHY and G-PHY */ -#define SSB_SPROM1_AGAIN_BG_SHIFT 0 -#define SSB_SPROM1_AGAIN_A 0xFF00 /* A-PHY */ -#define SSB_SPROM1_AGAIN_A_SHIFT 8 - -/* SPROM Revision 2 (inherits from rev 1) */ -#define SSB_SPROM2_BFLHI 0x1038 /* Boardflags (high 16 bits) */ -#define SSB_SPROM2_MAXP_A 0x103A /* A-PHY Max Power */ -#define SSB_SPROM2_MAXP_A_HI 0x00FF /* Max Power High */ -#define SSB_SPROM2_MAXP_A_LO 0xFF00 /* Max Power Low */ -#define SSB_SPROM2_MAXP_A_LO_SHIFT 8 -#define SSB_SPROM2_PA1LOB0 0x103C /* A-PHY PowerAmplifier Low Settings */ -#define SSB_SPROM2_PA1LOB1 0x103E /* A-PHY PowerAmplifier Low Settings */ -#define SSB_SPROM2_PA1LOB2 0x1040 /* A-PHY PowerAmplifier Low Settings */ -#define SSB_SPROM2_PA1HIB0 0x1042 /* A-PHY PowerAmplifier High Settings */ -#define SSB_SPROM2_PA1HIB1 0x1044 /* A-PHY PowerAmplifier High Settings */ -#define SSB_SPROM2_PA1HIB2 0x1046 /* A-PHY PowerAmplifier High Settings */ -#define SSB_SPROM2_OPO 0x1078 /* OFDM Power Offset from CCK Level */ -#define SSB_SPROM2_OPO_VALUE 0x00FF -#define SSB_SPROM2_OPO_UNUSED 0xFF00 -#define SSB_SPROM2_CCODE 0x107C /* Two char Country Code */ - -/* SPROM Revision 3 (inherits most data from rev 2) */ -#define SSB_SPROM3_IL0MAC 0x104A /* 6 bytes MAC address for 802.11b/g */ -#define SSB_SPROM3_ET0MAC 0x1050 /* 6 bytes MAC address for Ethernet ?? */ -#define SSB_SPROM3_ET1MAC 0x1050 /* 6 bytes MAC address for 802.11a ?? */ -#define SSB_SPROM3_OFDMAPO 0x102C /* A-PHY OFDM Mid Power Offset (4 bytes, BigEndian) */ -#define SSB_SPROM3_OFDMALPO 0x1030 /* A-PHY OFDM Low Power Offset (4 bytes, BigEndian) */ -#define SSB_SPROM3_OFDMAHPO 0x1034 /* A-PHY OFDM High Power Offset (4 bytes, BigEndian) */ -#define SSB_SPROM3_GPIOLDC 0x1042 /* GPIO LED Powersave Duty Cycle (4 bytes, BigEndian) */ -#define SSB_SPROM3_GPIOLDC_OFF 0x0000FF00 /* Off Count */ -#define SSB_SPROM3_GPIOLDC_OFF_SHIFT 8 -#define SSB_SPROM3_GPIOLDC_ON 0x00FF0000 /* On Count */ -#define SSB_SPROM3_GPIOLDC_ON_SHIFT 16 -#define SSB_SPROM3_CCKPO 0x1078 /* CCK Power Offset */ -#define SSB_SPROM3_CCKPO_1M 0x000F /* 1M Rate PO */ -#define SSB_SPROM3_CCKPO_2M 0x00F0 /* 2M Rate PO */ -#define SSB_SPROM3_CCKPO_2M_SHIFT 4 -#define SSB_SPROM3_CCKPO_55M 0x0F00 /* 5.5M Rate PO */ -#define SSB_SPROM3_CCKPO_55M_SHIFT 8 -#define SSB_SPROM3_CCKPO_11M 0xF000 /* 11M Rate PO */ -#define SSB_SPROM3_CCKPO_11M_SHIFT 12 -#define SSB_SPROM3_OFDMGPO 0x107A /* G-PHY OFDM Power Offset (4 bytes, BigEndian) */ - -/* SPROM Revision 4 */ -#define SSB_SPROM4_IL0MAC 0x104C /* 6 byte MAC address for a/b/g/n */ -#define SSB_SPROM4_ET0MAC 0x1018 /* 6 bytes MAC address for Ethernet ?? */ -#define SSB_SPROM4_ET1MAC 0x1018 /* 6 bytes MAC address for 802.11a ?? */ -#define SSB_SPROM4_ETHPHY 0x105A /* Ethernet PHY settings ?? */ -#define SSB_SPROM4_ETHPHY_ET0A 0x001F /* MII Address for enet0 */ -#define SSB_SPROM4_ETHPHY_ET1A 0x03E0 /* MII Address for enet1 */ -#define SSB_SPROM4_ETHPHY_ET1A_SHIFT 5 -#define SSB_SPROM4_ETHPHY_ET0M (1<<14) /* MDIO for enet0 */ -#define SSB_SPROM4_ETHPHY_ET1M (1<<15) /* MDIO for enet1 */ -#define SSB_SPROM4_CCODE 0x1052 /* Country Code (2 bytes) */ -#define SSB_SPROM4_ANTAVAIL 0x105D /* Antenna available bitfields */ -#define SSB_SPROM4_ANTAVAIL_A 0x00FF /* A-PHY bitfield */ -#define SSB_SPROM4_ANTAVAIL_A_SHIFT 0 -#define SSB_SPROM4_ANTAVAIL_BG 0xFF00 /* B-PHY and G-PHY bitfield */ -#define SSB_SPROM4_ANTAVAIL_BG_SHIFT 8 -#define SSB_SPROM4_BFLLO 0x1044 /* Boardflags (low 16 bits) */ -#define SSB_SPROM4_AGAIN01 0x105E /* Antenna Gain (in dBm Q5.2) */ -#define SSB_SPROM4_AGAIN0 0x00FF /* Antenna 0 */ -#define SSB_SPROM4_AGAIN0_SHIFT 0 -#define SSB_SPROM4_AGAIN1 0xFF00 /* Antenna 1 */ -#define SSB_SPROM4_AGAIN1_SHIFT 8 -#define SSB_SPROM4_AGAIN23 0x1060 -#define SSB_SPROM4_AGAIN2 0x00FF /* Antenna 2 */ -#define SSB_SPROM4_AGAIN2_SHIFT 0 -#define SSB_SPROM4_AGAIN3 0xFF00 /* Antenna 3 */ -#define SSB_SPROM4_AGAIN3_SHIFT 8 -#define SSB_SPROM4_BFLHI 0x1046 /* Board Flags Hi */ -#define SSB_SPROM4_MAXP_BG 0x1080 /* Max Power BG in path 1 */ -#define SSB_SPROM4_MAXP_BG_MASK 0x00FF /* Mask for Max Power BG */ -#define SSB_SPROM4_ITSSI_BG 0xFF00 /* Mask for path 1 itssi_bg */ -#define SSB_SPROM4_ITSSI_BG_SHIFT 8 -#define SSB_SPROM4_MAXP_A 0x108A /* Max Power A in path 1 */ -#define SSB_SPROM4_MAXP_A_MASK 0x00FF /* Mask for Max Power A */ -#define SSB_SPROM4_ITSSI_A 0xFF00 /* Mask for path 1 itssi_a */ -#define SSB_SPROM4_ITSSI_A_SHIFT 8 -#define SSB_SPROM4_GPIOA 0x1056 /* Gen. Purpose IO # 0 and 1 */ -#define SSB_SPROM4_GPIOA_P0 0x00FF /* Pin 0 */ -#define SSB_SPROM4_GPIOA_P1 0xFF00 /* Pin 1 */ -#define SSB_SPROM4_GPIOA_P1_SHIFT 8 -#define SSB_SPROM4_GPIOB 0x1058 /* Gen. Purpose IO # 2 and 3 */ -#define SSB_SPROM4_GPIOB_P2 0x00FF /* Pin 2 */ -#define SSB_SPROM4_GPIOB_P3 0xFF00 /* Pin 3 */ -#define SSB_SPROM4_GPIOB_P3_SHIFT 8 -#define SSB_SPROM4_PA0B0 0x1082 /* The paXbY locations are */ -#define SSB_SPROM4_PA0B1 0x1084 /* only guesses */ -#define SSB_SPROM4_PA0B2 0x1086 -#define SSB_SPROM4_PA1B0 0x108E -#define SSB_SPROM4_PA1B1 0x1090 -#define SSB_SPROM4_PA1B2 0x1092 - -/* Values for SSB_SPROM1_BINF_CCODE */ -enum { - SSB_SPROM1CCODE_WORLD = 0, - SSB_SPROM1CCODE_THAILAND, - SSB_SPROM1CCODE_ISRAEL, - SSB_SPROM1CCODE_JORDAN, - SSB_SPROM1CCODE_CHINA, - SSB_SPROM1CCODE_JAPAN, - SSB_SPROM1CCODE_USA_CANADA_ANZ, - SSB_SPROM1CCODE_EUROPE, - SSB_SPROM1CCODE_USA_LOW, - SSB_SPROM1CCODE_JAPAN_HIGH, - SSB_SPROM1CCODE_ALL, - SSB_SPROM1CCODE_NONE, -}; - -/* Address-Match values and masks (SSB_ADMATCHxxx) */ -#define SSB_ADM_TYPE 0x00000003 /* Address type */ -#define SSB_ADM_TYPE0 0 -#define SSB_ADM_TYPE1 1 -#define SSB_ADM_TYPE2 2 -#define SSB_ADM_AD64 0x00000004 -#define SSB_ADM_SZ0 0x000000F8 /* Type0 size */ -#define SSB_ADM_SZ0_SHIFT 3 -#define SSB_ADM_SZ1 0x000001F8 /* Type1 size */ -#define SSB_ADM_SZ1_SHIFT 3 -#define SSB_ADM_SZ2 0x000001F8 /* Type2 size */ -#define SSB_ADM_SZ2_SHIFT 3 -#define SSB_ADM_EN 0x00000400 /* Enable */ -#define SSB_ADM_NEG 0x00000800 /* Negative decode */ -#define SSB_ADM_BASE0 0xFFFFFF00 /* Type0 base address */ -#define SSB_ADM_BASE0_SHIFT 8 -#define SSB_ADM_BASE1 0xFFFFF000 /* Type1 base address for the core */ -#define SSB_ADM_BASE1_SHIFT 12 -#define SSB_ADM_BASE2 0xFFFF0000 /* Type2 base address for the core */ -#define SSB_ADM_BASE2_SHIFT 16 - - -#endif /* LINUX_SSB_REGS_H_ */ |