mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-11-19 15:05:12 +01:00
102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/*
|
|
* LED driver for MTX-1 boards
|
|
*
|
|
* Copyright 2007 Florian Fainelli <florian@openwrt.org>
|
|
*
|
|
* 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/gpio.h>
|
|
|
|
static struct platform_device *pdev;
|
|
|
|
static void mtx1_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
|
|
{
|
|
if (!strcmp("mtx1:green", led_cdev->name))
|
|
gpio_set_value(211, brightness ? 1 : 0);
|
|
else
|
|
gpio_set_value(212, brightness ? 1 : 0);
|
|
}
|
|
|
|
static struct led_classdev mtx1_green_led = {
|
|
.name = "mtx1:green",
|
|
.brightness_set = mtx1_led_set,
|
|
};
|
|
|
|
static struct led_classdev mtx1_red_led = {
|
|
.name = "mtx1:red",
|
|
.brightness_set = mtx1_led_set,
|
|
};
|
|
|
|
static int mtx1_leds_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &mtx1_green_led);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &mtx1_red_led);
|
|
if (ret < 0)
|
|
led_classdev_unregister(&mtx1_green_led);
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static int mtx1_leds_remove(struct platform_device *pdev)
|
|
{
|
|
led_classdev_unregister(&mtx1_green_led);
|
|
led_classdev_unregister(&mtx1_red_led);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver mtx1_leds_driver = {
|
|
.probe = mtx1_leds_probe,
|
|
.remove = mtx1_leds_remove,
|
|
.driver = {
|
|
.name = "mtx1-leds",
|
|
}
|
|
};
|
|
|
|
static int __init mtx1_leds_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = platform_driver_register(&mtx1_leds_driver);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
pdev = platform_device_register_simple("mtx1-leds", -1, NULL, 0);
|
|
if (IS_ERR(pdev)) {
|
|
ret = PTR_ERR(pdev);
|
|
platform_driver_unregister(&mtx1_leds_driver);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
|
|
}
|
|
|
|
static void __exit mtx1_leds_exit(void)
|
|
{
|
|
platform_device_unregister(pdev);
|
|
platform_driver_unregister(&mtx1_leds_driver);
|
|
}
|
|
|
|
module_init(mtx1_leds_init);
|
|
module_exit(mtx1_leds_exit);
|
|
|
|
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
|
|
MODULE_DESCRIPTION("MTX-1 LED driver");
|
|
MODULE_LICENSE("GPL");
|