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-rw-r--r--package/broadcom-diag/src/Makefile18
-rw-r--r--package/broadcom-diag/src/diag.c939
2 files changed, 957 insertions, 0 deletions
diff --git a/package/broadcom-diag/src/Makefile b/package/broadcom-diag/src/Makefile
new file mode 100644
index 0000000..a43f5f3
--- /dev/null
+++ b/package/broadcom-diag/src/Makefile
@@ -0,0 +1,18 @@
+# $Id$
+#
+# Makefile for diag driver
+#
+# Copyright (C) 2005 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.
+#
+
+obj-m := diag.o
+
+ifeq ($(MAKING_MODULES),1)
+
+-include $(TOPDIR)/Rules.make
+endif
diff --git a/package/broadcom-diag/src/diag.c b/package/broadcom-diag/src/diag.c
new file mode 100644
index 0000000..b7c6731
--- /dev/null
+++ b/package/broadcom-diag/src/diag.c
@@ -0,0 +1,939 @@
+/*
+ * diag.c - GPIO interface driver for Broadcom boards
+ *
+ * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>,
+ * 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.
+ *
+ * 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, MA 02111-1307, USA.
+ *
+ * $Id:$
+ */
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/kmod.h>
+#include <linux/proc_fs.h>
+#include <linux/timer.h>
+#include <linux/version.h>
+#include <asm/uaccess.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+#include <linux/kobject.h>
+#include <linux/workqueue.h>
+#define hotplug_path uevent_helper
+#else
+#include <linux/tqueue.h>
+#define INIT_WORK INIT_TQUEUE
+#define schedule_work schedule_task
+#define work_struct tq_struct
+#define sbh bcm947xx_sbh
+#define sbh_lock bcm947xx_sbh_lock
+#endif
+
+#include <typedefs.h>
+#include <osl.h>
+#include <bcmdevs.h>
+#include <sbutils.h>
+#include <sbconfig.h>
+#include <sbchipc.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+#include <sbmips.h>
+#else
+#include <hndcpu.h>
+#endif
+
+#define MODULE_NAME "diag"
+
+#define MAX_GPIO 8
+#define FLASH_TIME HZ/6
+
+#define EXTIF_ADDR 0x1f000000
+#define EXTIF_UART (EXTIF_ADDR + 0x00800000)
+
+/* For LEDs */
+#define GPIO_TYPE_NORMAL (0x0 << 24)
+#define GPIO_TYPE_EXTIF (0x1 << 24)
+#define GPIO_TYPE_MASK (0xf << 24)
+
+static unsigned int gpiomask = 0;
+module_param(gpiomask, int, 0644);
+
+enum polarity_t {
+ REVERSE = 0,
+ NORMAL = 1,
+};
+
+enum {
+ PROC_BUTTON,
+ PROC_LED,
+ PROC_MODEL,
+ PROC_GPIOMASK
+};
+
+struct prochandler_t {
+ int type;
+ void *ptr;
+};
+
+struct button_t {
+ struct prochandler_t proc;
+ char *name;
+ u16 gpio;
+ u8 polarity;
+ u8 pressed;
+ unsigned long seen;
+};
+
+struct led_t {
+ struct prochandler_t proc;
+ char *name;
+ u32 gpio;
+ u8 polarity;
+ u8 flash;
+ u8 state;
+};
+
+struct platform_t {
+ char *name;
+ struct button_t buttons[MAX_GPIO];
+ struct led_t leds[MAX_GPIO];
+};
+
+enum {
+ /* Linksys */
+ WAP54GV1,
+ WAP54GV3,
+ WRT54GV1,
+ WRT54G,
+ WRTSL54GS,
+ WRT54G3G,
+
+ /* ASUS */
+ WLHDD,
+ WL300G,
+ WL500G,
+ WL500GD,
+ WL500GP,
+ ASUS_4702,
+
+ /* Buffalo */
+ WBR2_G54,
+ WHR_G54S,
+ WHR_HP_G54,
+ WHR2_A54G54,
+ WLA2_G54L,
+ BUFFALO_UNKNOWN,
+ BUFFALO_UNKNOWN_4710,
+
+ /* Siemens */
+ SE505V1,
+ SE505V2,
+
+ /* US Robotics */
+ USR5461,
+
+ /* Dell */
+ TM2300,
+
+ /* Motorola */
+ WE800G,
+ WR850GV1,
+ WR850GV2,
+
+ /* Belkin */
+ BELKIN_UNKNOWN,
+};
+
+static struct platform_t platforms[] = {
+ /* Linksys */
+ [WAP54GV1] = {
+ .name = "Linksys WAP54G V1",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 0 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 3 },
+ { .name = "wlan", .gpio = 1 << 4 },
+ },
+ },
+ [WAP54GV3] = {
+ .name = "Linksys WAP54G V3",
+ .buttons = {
+ /* FIXME: verify this */
+ { .name = "reset", .gpio = 1 << 7 },
+ { .name = "ses", .gpio = 1 << 0 },
+ },
+ .leds = {
+ /* FIXME: diag? */
+ { .name = "ses", .gpio = 1 << 1 },
+ },
+ },
+ [WRT54GV1] = {
+ .name = "Linksys WRT54G V1.x",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 0x13 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
+ { .name = "dmz", .gpio = 0x12 | GPIO_TYPE_EXTIF, .polarity = NORMAL },
+ },
+ },
+ [WRT54G] = {
+ .name = "Linksys WRT54G*",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ { .name = "ses", .gpio = 1 << 4 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
+ { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
+ { .name = "ses_white", .gpio = 1 << 2, .polarity = REVERSE },
+ { .name = "ses_orange", .gpio = 1 << 3, .polarity = REVERSE },
+ { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
+ },
+ },
+ [WRTSL54GS] = {
+ .name = "Linksys WRTSL54GS",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ { .name = "ses", .gpio = 1 << 4 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
+ { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
+ { .name = "ses_white", .gpio = 1 << 5, .polarity = REVERSE },
+ { .name = "ses_orange", .gpio = 1 << 7, .polarity = REVERSE },
+ },
+ },
+ [WRT54G3G] = {
+ .name = "Linksys WRT54G3G",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ { .name = "3g", .gpio = 1 << 4 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 1, .polarity = NORMAL },
+ { .name = "dmz", .gpio = 1 << 7, .polarity = REVERSE },
+ { .name = "3g_green", .gpio = 1 << 2, .polarity = NORMAL },
+ { .name = "3g_blue", .gpio = 1 << 3, .polarity = NORMAL },
+ { .name = "3g_blink", .gpio = 1 << 5, .polarity = NORMAL },
+ },
+ },
+ /* Asus */
+ [WLHDD] = {
+ .name = "ASUS WL-HDD",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
+ },
+ },
+ [WL300G] = {
+ .name = "ASUS WL-500g",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
+ },
+ },
+ [WL500G] = {
+ .name = "ASUS WL-500g",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
+ },
+ },
+ [WL500GD] = {
+ .name = "ASUS WL-500g Deluxe",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
+ },
+ },
+ [WL500GP] = {
+ .name = "ASUS WL-500g Premium",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 0 },
+ { .name = "ses", .gpio = 1 << 4 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 1, .polarity = REVERSE },
+ },
+ },
+ [ASUS_4702] = {
+ .name = "ASUS (unknown, BCM4702)",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 6 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 0, .polarity = REVERSE },
+ },
+ },
+ /* Buffalo */
+ [WHR_G54S] = {
+ .name = "Buffalo WHR-G54S",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 4 },
+ { .name = "ses", .gpio = 1 << 0 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
+ { .name = "internal", .gpio = 1 << 3, .polarity = REVERSE },
+ { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
+ },
+ },
+ [WBR2_G54] = {
+ .name = "Buffalo WBR2-G54",
+ /* FIXME: verify */
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 7 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
+ },
+ },
+ [WHR_HP_G54] = {
+ .name = "Buffalo WHR-HP-G54",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 4 },
+ { .name = "bridge", .gpio = 1 << 5 },
+ { .name = "ses", .gpio = 1 << 0 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
+ { .name = "bridge", .gpio = 1 << 1, .polarity = REVERSE },
+ { .name = "ses", .gpio = 1 << 6, .polarity = REVERSE },
+ },
+ },
+ [WHR2_A54G54] = {
+ .name = "Buffalo WHR2-A54G54",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 4 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
+ },
+ },
+ [WLA2_G54L] = {
+ .name = "Buffalo WLA2-G54L",
+ /* FIXME: verify */
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 7 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
+ },
+ },
+ [BUFFALO_UNKNOWN] = {
+ .name = "Buffalo (unknown)",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 7 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
+ },
+ },
+ [BUFFALO_UNKNOWN_4710] = {
+ .name = "Buffalo (unknown, BCM4710)",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 4 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
+ },
+ },
+ /* Siemens */
+ [SE505V1] = {
+ .name = "Siemens SE505 V1",
+ .buttons = {
+ /* No usable buttons */
+ },
+ .leds = {
+ { .name = "dmz", .gpio = 1 << 4, .polarity = REVERSE },
+ { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
+ },
+ },
+ [SE505V2] = {
+ .name = "Siemens SE505 V2",
+ .buttons = {
+ /* No usable buttons */
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 5, .polarity = REVERSE },
+ { .name = "dmz", .gpio = 1 << 0, .polarity = REVERSE },
+ { .name = "wlan", .gpio = 1 << 3, .polarity = REVERSE },
+ },
+ },
+ /* US Robotics */
+ [USR5461] = {
+ .name = "U.S. Robotics USR5461",
+ .buttons = {
+ /* No usable buttons */
+ },
+ .leds = {
+ { .name = "wlan", .gpio = 1 << 0, .polarity = REVERSE },
+ { .name = "printer", .gpio = 1 << 1, .polarity = REVERSE },
+ },
+ },
+ /* Dell */
+ [TM2300] = {
+ .name = "Dell TrueMobile 2300",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 0 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 7, .polarity = REVERSE },
+ },
+ },
+ /* Motorola */
+ [WE800G] = {
+ .name = "Motorola WE800G",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 0 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
+ { .name = "diag", .gpio = 1 << 2, .polarity = REVERSE },
+ { .name = "wlan_amber", .gpio = 1 << 1, .polarity = NORMAL },
+ },
+ },
+ [WR850GV1] = {
+ .name = "Motorola WR850G V1",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 0 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 4, .polarity = NORMAL },
+ { .name = "diag", .gpio = 1 << 3, .polarity = REVERSE },
+ { .name = "modem", .gpio = 1 << 6, .polarity = NORMAL },
+ { .name = "wlan_red", .gpio = 1 << 5, .polarity = REVERSE },
+ { .name = "wlan_green", .gpio = 1 << 7, .polarity = REVERSE },
+ },
+ },
+ [WR850GV2] = {
+ .name = "Motorola WR850G V2",
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 5 },
+ },
+ .leds = {
+ { .name = "diag", .gpio = 1 << 1, .polarity = REVERSE },
+ { .name = "wlan", .gpio = 1 << 0, .polarity = NORMAL },
+ { .name = "modem_green",.gpio = 1 << 6, .polarity = REVERSE },
+ { .name = "modem_red", .gpio = 1 << 7, .polarity = REVERSE },
+ },
+ },
+ /* Belkin */
+ [BELKIN_UNKNOWN] = {
+ .name = "Belkin (unknown)",
+ /* FIXME: verify & add detection */
+ .buttons = {
+ { .name = "reset", .gpio = 1 << 7 },
+ },
+ .leds = {
+ { .name = "power", .gpio = 1 << 5, .polarity = NORMAL },
+ { .name = "wlan", .gpio = 1 << 3, .polarity = NORMAL },
+ { .name = "connected", .gpio = 1 << 0, .polarity = NORMAL },
+ },
+ },
+};
+
+extern void *sbh;
+extern spinlock_t sbh_lock;
+extern char *nvram_get(char *str);
+
+static struct proc_dir_entry *diag, *leds;
+static struct platform_t platform;
+static void led_flash(unsigned long dummy);
+
+#define getvar(str) (nvram_get(str)?:"")
+
+static void set_led_extif(struct led_t *led)
+{
+ volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (led->gpio & ~GPIO_TYPE_MASK);
+ if (led->state)
+ *addr = 0xFF;
+ else
+ *addr;
+}
+
+static struct platform_t __init *platform_detect(void)
+{
+ char *boardnum, *boardtype, *buf;
+
+ boardnum = getvar("boardnum");
+ boardtype = getvar("boardtype");
+ if (strncmp(getvar("pmon_ver"), "CFE", 3) == 0) {
+ /* CFE based - newer hardware */
+ if (!strcmp(boardnum, "42")) { /* Linksys */
+ if (!strcmp(boardtype, "0x0101"))
+ return &platforms[WRT54G3G];
+
+ if (!strcmp(getvar("et1phyaddr"),"5") && !strcmp(getvar("et1mdcport"), "1"))
+ return &platforms[WRTSL54GS];
+
+ /* default to WRT54G */
+ return &platforms[WRT54G];
+ }
+
+ if (!strcmp(boardnum, "45")) { /* ASUS */
+ if (!strcmp(boardtype,"0x042f"))
+ return &platforms[WL500GP];
+ else
+ return &platforms[WL500GD];
+ }
+
+ if (!strcmp(boardnum, "10496"))
+ return &platforms[USR5461];
+ } else { /* PMON based - old stuff */
+ if (!strncmp(boardtype, "bcm94710dev", 11)) {
+ if (!strcmp(boardnum, "42"))
+ return &platforms[WRT54GV1];
+ if (simple_strtoul(boardnum, NULL, 9) == 2)
+ return &platforms[WAP54GV1];
+ }
+ if (!strncmp(getvar("hardware_version"), "WL500-", 6))
+ return &platforms[WL500G];
+ if (!strncmp(getvar("hardware_version"), "WL300-", 6)) {
+ /* Either WL-300g or WL-HDD, do more extensive checks */
+ if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
+ (simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 1))
+ return &platforms[WLHDD];
+ if ((simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 0) &&
+ (simple_strtoul(getvar("et1phyaddr"), NULL, 9) == 10))
+ return &platforms[WL300G];
+ }
+
+ /* unknown asus stuff, probably bcm4702 */
+ if (!strncmp(boardnum, "asusX", 5))
+ return &platforms[ASUS_4702];
+
+ if ((simple_strtoul(getvar("GemtekPmonVer"), NULL, 0) == 9) &&
+ (simple_strtoul(getvar("et0phyaddr"), NULL, 0) == 30)) {
+ if (!strncmp(getvar("ModelId"),"WE800G", 6))
+ return &platforms[WE800G];
+ else
+ return &platforms[WR850GV1];
+ }
+ }
+
+ if ((buf = (nvram_get("melco_id") ?: nvram_get("buffalo_id")))) {
+ /* Buffalo hardware, check id for specific hardware matches */
+ if (!strcmp(buf, "29bb0332"))
+ return &platforms[WBR2_G54];
+ if (!strcmp(buf, "29129"))
+ return &platforms[WLA2_G54L];
+ if (!strcmp(buf, "30189"))
+ return &platforms[WHR_HP_G54];
+ if (!strcmp(buf, "30182"))
+ return &platforms[WHR_G54S];
+ if (!strcmp(buf, "290441dd"))
+ return &platforms[WHR2_A54G54];
+ }
+
+ if (buf || !strcmp(boardnum, "00")) {/* probably buffalo */
+ if (!strncmp(boardtype, "bcm94710ap", 10))
+ return &platforms[BUFFALO_UNKNOWN_4710];
+ else
+ return &platforms[BUFFALO_UNKNOWN];
+ }
+
+ if (!strcmp(getvar("CFEver"), "MotoWRv203"))
+ return &platforms[WR850GV2];
+
+ /* not found */
+ return NULL;
+}
+
+static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos);
+static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data);
+static struct file_operations diag_proc_fops = {
+ read: diag_proc_read,
+ write: diag_proc_write
+};
+
+
+
+static ssize_t diag_proc_read(struct file *file, char *buf, size_t count, loff_t *ppos)
+{
+#ifdef LINUX_2_4
+ struct inode *inode = file->f_dentry->d_inode;
+ struct proc_dir_entry *dent = inode->u.generic_ip;
+#else
+ struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
+#endif
+ char *page;
+ int len = 0;
+
+ if ((page = kmalloc(1024, GFP_KERNEL)) == NULL)
+ return -ENOBUFS;
+
+ if (dent->data != NULL) {
+ struct prochandler_t *handler = (struct prochandler_t *) dent->data;
+ switch (handler->type) {
+ case PROC_LED: {
+ struct led_t * led = (struct led_t *) handler->ptr;
+ if (led->flash) {
+ len = sprintf(page, "f\n");
+ } else {
+ if (led->gpio & GPIO_TYPE_EXTIF) {
+ len = sprintf(page, "%d\n", led->state);
+ } else {
+ int in = (sb_gpioin(sbh) & led->gpio ? 1 : 0);
+ int p = (led->polarity == NORMAL ? 0 : 1);
+ len = sprintf(page, "%d\n", ((in ^ p) ? 1 : 0));
+ }
+ }
+ break;
+ }
+ case PROC_MODEL:
+ len = sprintf(page, "%s\n", platform.name);
+ break;
+ case PROC_GPIOMASK:
+ len = sprintf(page, "%d\n", gpiomask);
+ break;
+ }
+ }
+ len += 1;
+
+ if (*ppos < len) {
+ len = min_t(int, len - *ppos, count);
+ if (copy_to_user(buf, (page + *ppos), len)) {
+ kfree(page);
+ return -EFAULT;
+ }
+ *ppos += len;
+ } else {
+ len = 0;
+ }
+
+ return len;
+}
+
+
+static ssize_t diag_proc_write(struct file *file, const char *buf, size_t count, void *data)
+{
+#ifdef LINUX_2_4
+ struct inode *inode = file->f_dentry->d_inode;
+ struct proc_dir_entry *dent = inode->u.generic_ip;
+#else
+ struct proc_dir_entry *dent = PDE(file->f_dentry->d_inode);
+#endif
+ char *page;
+ int ret = -EINVAL;
+
+ if ((page = kmalloc(count + 1, GFP_KERNEL)) == NULL)
+ return -ENOBUFS;
+
+ if (copy_from_user(page, buf, count)) {
+ kfree(page);
+ return -EINVAL;
+ }
+ page[count] = 0;
+
+ if (dent->data != NULL) {
+ struct prochandler_t *handler = (struct prochandler_t *) dent->data;
+ switch (handler->type) {
+ case PROC_LED: {
+ struct led_t *led = (struct led_t *) handler->ptr;
+ int p = (led->polarity == NORMAL ? 0 : 1);
+
+ if (!(led->gpio & GPIO_TYPE_EXTIF) && (led->gpio & gpiomask))
+ break;
+
+ if (page[0] == 'f') {
+ led->flash = 1;
+ led_flash(0);
+ } else {
+ led->flash = 0;
+ if (led->gpio & GPIO_TYPE_EXTIF) {
+ led->state = p ^ ((page[0] == '1') ? 1 : 0);
+ set_led_extif(led);
+ } else {
+ sb_gpioouten(sbh, led->gpio, led->gpio, GPIO_DRV_PRIORITY);
+ sb_gpiocontrol(sbh, led->gpio, 0, GPIO_DRV_PRIORITY);
+ sb_gpioout(sbh, led->gpio, ((p ^ (page[0] == '1')) ? led->gpio : 0), GPIO_DRV_PRIORITY);
+ }
+ }
+ break;
+ }
+ case PROC_GPIOMASK:
+ gpiomask = simple_strtoul(page, NULL, 16);
+ break;
+ }
+ ret = count;
+ }
+
+ kfree(page);
+ return ret;
+}
+
+struct event_t {
+ struct work_struct tq;
+ char buf[256];
+ char *argv[3];
+ char *envp[6];
+};
+
+static void hotplug_button(struct event_t *event)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+ call_usermodehelper (event->argv[0], event->argv, event->envp, 1);
+#else
+ call_usermodehelper (event->argv[0], event->argv, event->envp);
+#endif
+ kfree(event);
+}
+
+static void set_irqenable(int enabled)
+{
+ unsigned int coreidx;
+ unsigned long flags;
+ chipcregs_t *cc;
+
+ spin_lock_irqsave(sbh_lock, flags);
+ coreidx = sb_coreidx(sbh);
+ if ((cc = sb_setcore(sbh, SB_CC, 0))) {
+ int intmask;
+
+ intmask = readl(&cc->intmask);
+ if (enabled)
+ intmask |= CI_GPIO;
+ else
+ intmask &= ~CI_GPIO;
+ writel(intmask, &cc->intmask);
+ }
+ sb_setcoreidx(sbh, coreidx);
+ spin_unlock_irqrestore(sbh_lock, flags);
+}
+
+
+static irqreturn_t button_handler(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct button_t *b;
+ int in = sb_gpioin(sbh);
+ struct event_t *event;
+
+ set_irqenable(0);
+ for (b = platform.buttons; b->name; b++) {
+ if (b->gpio & gpiomask)
+ continue;
+
+ if (b->polarity != (in & b->gpio)) {
+ b->pressed ^= 1;
+
+ if ((event = (struct event_t *)kmalloc (sizeof(struct event_t), GFP_ATOMIC))) {
+ int i;
+ char *scratch = event->buf;
+
+ i = 0;
+ event->argv[i++] = hotplug_path;
+ event->argv[i++] = "button";
+ event->argv[i] = 0;
+
+ i = 0;
+ event->envp[i++] = "HOME=/";
+ event->envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+ event->envp[i++] = scratch;
+ scratch += sprintf (scratch, "ACTION=%s", b->pressed?"pressed":"released") + 1;
+ event->envp[i++] = scratch;
+ scratch += sprintf (scratch, "BUTTON=%s", b->name) + 1;
+ event->envp[i++] = scratch;
+ scratch += sprintf (scratch, "SEEN=%ld", (jiffies - b->seen)/HZ) + 1;
+ event->envp[i] = 0;
+
+ INIT_WORK(&event->tq, (void *)(void *)hotplug_button, (void *)event);
+ schedule_work(&event->tq);
+ }
+
+ b->seen = jiffies;
+ b->polarity ^= b->gpio;
+ sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
+ }
+ }
+ set_irqenable(1);
+ return IRQ_HANDLED;
+}
+
+static struct timer_list led_timer = {
+ function: &led_flash
+};
+
+static void led_flash(unsigned long dummy) {
+ struct led_t *l;
+ unsigned mask = 0;
+ unsigned extif_blink = 0;
+
+ for (l = platform.leds; l->name; l++) {
+ if (l->flash) {
+ if (l->gpio & GPIO_TYPE_EXTIF) {
+ extif_blink = 1;
+ l->state = !l->state;
+ set_led_extif(l);
+ } else {
+ mask |= l->gpio;
+ }
+ }
+ }
+
+ mask &= ~gpiomask;
+ if (mask) {
+ unsigned val;
+
+ val = ~sb_gpioin(sbh);
+ val &= mask;
+
+ sb_gpioouten(sbh, mask, mask, GPIO_DRV_PRIORITY);
+ sb_gpiocontrol(sbh, mask, 0, GPIO_DRV_PRIORITY);
+ sb_gpioout(sbh, mask, val, GPIO_DRV_PRIORITY);
+ }
+ if (mask || extif_blink) {
+ mod_timer(&led_timer, jiffies + FLASH_TIME);
+ }
+}
+
+static void __init register_buttons(struct button_t *b)
+{
+ int irq = sb_irq(sbh) + 2;
+
+ request_irq(irq, button_handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", button_handler);
+
+ for (; b->name; b++) {
+ if (b->gpio & gpiomask)
+ continue;
+
+ sb_gpioouten(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
+ sb_gpiocontrol(sbh, b->gpio,0, GPIO_DRV_PRIORITY);
+ b->polarity = sb_gpioin(sbh) & b->gpio;
+ sb_gpiointpolarity(sbh, b->gpio, b->polarity, GPIO_DRV_PRIORITY);
+ sb_gpiointmask(sbh, b->gpio, b->gpio, GPIO_DRV_PRIORITY);
+ }
+ set_irqenable(1);
+}
+
+static void __exit unregister_buttons(struct button_t *b)
+{
+ int irq = sb_irq(sbh) + 2;
+
+ for (; b->name; b++)
+ sb_gpiointmask(sbh, b->gpio, 0, GPIO_DRV_PRIORITY);
+
+ free_irq(irq, button_handler);
+}
+
+static void __init register_leds(struct led_t *l)
+{
+ struct proc_dir_entry *p;
+
+ leds = proc_mkdir("led", diag);
+ if (!leds)
+ return;
+
+ for(; l->name; l++) {
+ if (l->gpio & gpiomask)
+ continue;
+
+ if (l->gpio & GPIO_TYPE_EXTIF) {
+ l->state = 0;
+ set_led_extif(l);
+ } else {
+ sb_gpioouten(sbh, l->gpio, l->gpio, GPIO_DRV_PRIORITY);
+ sb_gpiocontrol(sbh, l->gpio, 0, GPIO_DRV_PRIORITY);
+ sb_gpioout(sbh, l->gpio, (l->polarity == NORMAL)?0:l->gpio, GPIO_DRV_PRIORITY);
+ }
+
+ if ((p = create_proc_entry(l->name, S_IRUSR, leds))) {
+ l->proc.type = PROC_LED;
+ l->proc.ptr = l;
+ p->data = (void *) &l->proc;
+ p->proc_fops = &diag_proc_fops;
+ }
+ }
+}
+
+static void __exit unregister_leds(struct led_t *l)
+{
+ for(; l->name; l++)
+ remove_proc_entry(l->name, leds);
+
+ remove_proc_entry("led", diag);
+}
+
+static void __exit diag_exit(void)
+{
+
+ del_timer(&led_timer);
+
+ if (platform.buttons)
+ unregister_buttons(platform.buttons);
+
+ if (platform.leds)
+ unregister_leds(platform.leds);
+
+ remove_proc_entry("model", diag);
+ remove_proc_entry("gpiomask", diag);
+ remove_proc_entry("diag", NULL);
+}
+
+static struct prochandler_t proc_model = { .type = PROC_MODEL };
+static struct prochandler_t proc_gpiomask = { .type = PROC_GPIOMASK };
+
+static int __init diag_init(void)
+{
+ static struct proc_dir_entry *p;
+ static struct platform_t *detected;
+
+ detected = platform_detect();
+ if (!detected) {
+ printk(MODULE_NAME ": Router model not detected.\n");
+ return -ENODEV;
+ }
+ memcpy(&platform, detected, sizeof(struct platform_t));
+
+ printk(MODULE_NAME ": Detected '%s'\n", platform.name);
+
+ if (!(diag = proc_mkdir("diag", NULL))) {
+ printk(MODULE_NAME ": proc_mkdir on /proc/diag failed\n");
+ return -EINVAL;
+ }
+
+ if ((p = create_proc_entry("model", S_IRUSR, diag))) {
+ p->data = (void *) &proc_model;
+ p->proc_fops = &diag_proc_fops;
+ }
+
+ if ((p = create_proc_entry("gpiomask", S_IRUSR | S_IWUSR, diag))) {
+ p->data = (void *) &proc_gpiomask;
+ p->proc_fops = &diag_proc_fops;
+ }
+
+ if (platform.buttons)
+ register_buttons(platform.buttons);
+
+ if (platform.leds)
+ register_leds(platform.leds);
+
+ return 0;
+}
+
+module_init(diag_init);
+module_exit(diag_exit);
+
+MODULE_AUTHOR("Mike Baker, Felix Fietkau / OpenWrt.org");
+MODULE_LICENSE("GPL");
generated by cgit v1.1 at 2024-12-23 08:38:08 +0000