diff options
Diffstat (limited to 'target/linux/adm5120-2.6/files/drivers/leds/leds-gpio.c')
| -rwxr-xr-x | target/linux/adm5120-2.6/files/drivers/leds/leds-gpio.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/target/linux/adm5120-2.6/files/drivers/leds/leds-gpio.c b/target/linux/adm5120-2.6/files/drivers/leds/leds-gpio.c deleted file mode 100755 index b1a1f1c..0000000 --- a/target/linux/adm5120-2.6/files/drivers/leds/leds-gpio.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * $Id$ - * - * Driver for LEDs connected to GPIO lines - * - * Copyright (C) 2007 OpenWrt.org - * Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org> - * - * This file was derived from: - * /drivers/led/leds-s3c24xx.c - * (c) 2006 Simtec Electronics, Ben Dooks <ben@simtec.co.uk> - * - * 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., 51 Franklin Street, Fifth Floor, - * Boston, MA 02110-1301, USA. - * - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/leds.h> -#include <linux/err.h> - -#include <linux/gpio_leds.h> - -#include <asm/io.h> -#include <asm/gpio.h> - -#define DRV_NAME "gpio-led" -#define DRV_DESC "GPIO LEDs driver" - -struct gpio_led_device { - struct led_classdev cdev; - struct gpio_led_platform_data *pdata; -}; - -static inline struct gpio_led_device *pdev_to_led(struct platform_device *dev) -{ - return platform_get_drvdata(dev); -} - -static inline struct gpio_led_device *class_to_led(struct led_classdev *led_cdev) -{ - return container_of(led_cdev, struct gpio_led_device, cdev); -} - -static void gpio_led_set(struct led_classdev *led_cdev, - enum led_brightness brightness) -{ - struct gpio_led_device *led; - struct gpio_led_platform_data *pdata; - - led = class_to_led(led_cdev); - pdata = led->pdata; - - switch (brightness) { - case LED_FULL: - gpio_direction_output(pdata->gpio, pdata->value_on); - break; - case LED_OFF: - gpio_direction_output(pdata->gpio, pdata->value_off); - break; - default: - gpio_direction_output(pdata->gpio, brightness); - break; - } -} - -static int __devinit gpio_led_probe(struct platform_device *dev) -{ - struct gpio_led_platform_data *pdata; - struct gpio_led_device *led; - int ret; - - pdata = dev->dev.platform_data; - if (pdata == NULL) { - dev_err(&dev->dev, "no platform data, id=%d\n", dev->id); - ret = -EINVAL; - goto err; - } - - if (pdata->name == NULL) { - dev_err(&dev->dev, "no led name specified\n"); - ret = -EINVAL; - goto err; - } - - ret = gpio_request(pdata->gpio, pdata->name); - if (ret) { - dev_err(&dev->dev, "gpio_request failed\n"); - goto err; - } - - led = kzalloc(sizeof(*led), GFP_KERNEL); - if (led == NULL) { - dev_err(&dev->dev, "no memory for device"); - ret = -ENOMEM; - goto err_free_gpio; - } - - platform_set_drvdata(dev, led); - led->pdata = pdata; - led->cdev.name = pdata->name; - led->cdev.brightness_set = gpio_led_set; -#ifdef CONFIG_LEDS_TRIGGERS - led->cdev.default_trigger = pdata->trigger; -#endif - - ret = led_classdev_register(&dev->dev, &led->cdev); - if (ret < 0) { - dev_err(&dev->dev, "led_classdev_register failed"); - goto err_free_led; - } - - return 0; - -err_free_led: - kfree(led); -err_free_gpio: - gpio_free(pdata->gpio); -err: - return ret; -} - -static int __devexit gpio_led_remove(struct platform_device *dev) -{ - struct gpio_led_device *led; - struct gpio_led_platform_data *pdata; - - pdata = dev->dev.platform_data; - - led = pdev_to_led(dev); - led_classdev_unregister(&led->cdev); - kfree(led); - - gpio_free(pdata->gpio); - - return 0; -} - -#ifdef CONFIG_PM -static int gpio_led_suspend(struct platform_device *dev, - pm_message_t state) -{ - struct gpio_led_device *led; - - led = pdev_to_led(dev); - led_classdev_suspend(&led->cdev); - - return 0; -} - -static int gpio_led_resume(struct platform_device *dev) -{ - struct gpio_led_device *led; - - led = pdev_to_led(dev); - led_classdev_resume(&led->cdev); - - return 0; -} -#endif /* CONFIG_PM */ - -static struct platform_driver gpio_led_driver = { - .probe = gpio_led_probe, - .remove = __devexit_p(gpio_led_remove), -#ifdef CONFIG_PM - .suspend = gpio_led_suspend, - .resume = gpio_led_resume, -#endif - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, -}; - -static int __init gpio_led_init(void) -{ - int ret; - - ret = platform_driver_register(&gpio_led_driver); - if (ret) - printk(KERN_ALERT DRV_DESC " register failed\n"); - else - printk(KERN_INFO DRV_DESC " registered\n"); - - return ret; -} - -static void __exit gpio_led_exit(void) -{ - platform_driver_unregister(&gpio_led_driver); -} - -module_init(gpio_led_init); -module_exit(gpio_led_exit); - -MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>"); -MODULE_DESCRIPTION(DRV_DESC); -MODULE_LICENSE("GPL"); |