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/*
* LED driver for RDC3211 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/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <asm/gpio.h>
/* This is just for testing purpose */
int gpio=-1;
module_param(gpio, int, 0444);
MODULE_PARM_DESC(gpio, " GPIO line");
static void rdc321x_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
{
gpio_set_value(gpio, brightness ? 1 : 0);
}
/* The DMZ led is at GPIO line 1 */
static struct led_classdev rdc321x_dmz_led = {
.name = "rdc321x:dmz",
.brightness_set = rdc321x_led_set,
};
static int rdc321x_leds_probe(struct platform_device *pdev)
{
return led_classdev_register(&pdev->dev, &rdc321x_dmz_led);
}
static int rdc321x_leds_remove(struct platform_device *pdev)
{
led_classdev_unregister(&rdc321x_dmz_led);
return 0;
}
static struct platform_driver rdc321x_leds_driver = {
.probe = rdc321x_leds_probe,
.remove = rdc321x_leds_remove,
.driver = {
.name = "rdc321x-leds",
.owner = THIS_MODULE,
}
};
static int __init rdc321x_leds_init(void)
{
int ret;
ret = gpio+1?platform_driver_register(&rdc321x_leds_driver):-EINVAL;
return ret;
}
static void __exit rdc321x_leds_exit(void)
{
platform_driver_unregister(&rdc321x_leds_driver);
}
module_init(rdc321x_leds_init);
module_exit(rdc321x_leds_exit);
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
MODULE_DESCRIPTION("RDC321x LED driver");
MODULE_LICENSE("GPL");
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