mirror of https://github.com/hak5/openwrt.git
110 lines
2.3 KiB
C
110 lines
2.3 KiB
C
/*
|
|
* 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/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/err.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
#define LED_VAL 0x8000384C // the data ofset of gpio 0~30
|
|
|
|
static struct platform_device *pdev;
|
|
|
|
static void rdc3211_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
|
|
{
|
|
unsigned long ul_ledstat = 0xffffffff;
|
|
unsigned long led_bit = 1 << (led_cdev->flags);
|
|
|
|
if (brightness)
|
|
ul_ledstat &= ~led_bit;
|
|
else
|
|
ul_ledstat|= led_bit;
|
|
|
|
outl(LED_VAL, 0xcf8);
|
|
outl(ul_ledstat, 0xcfc);
|
|
}
|
|
|
|
static struct led_classdev rdc3211_power_led = {
|
|
.name = "rdc3211:power",
|
|
.flags = 15,
|
|
.brightness_set = rdc3211_led_set,
|
|
};
|
|
|
|
static struct led_classdev rdc3211_dmz_led = {
|
|
.name = "rdc3211:dmz",
|
|
.flags = 16,
|
|
.brightness_set = rdc3211_led_set,
|
|
};
|
|
|
|
static int rdc3211_leds_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &rdc3211_power_led);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &rdc3211_dmz_led);
|
|
if (ret < 0)
|
|
led_classdev_unregister(&rdc3211_power_led);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int rdc3211_leds_remove(struct platform_device *pdev)
|
|
{
|
|
led_classdev_unregister(&rdc3211_power_led);
|
|
led_classdev_unregister(&rdc3211_dmz_led);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver rdc3211_leds_driver = {
|
|
.probe = rdc3211_leds_probe,
|
|
.remove = rdc3211_leds_remove,
|
|
.driver = {
|
|
.name = "rdc3211-leds",
|
|
}
|
|
};
|
|
|
|
static int __init rdc3211_leds_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = platform_driver_register(&rdc3211_leds_driver);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
pdev = platform_device_register_simple("rdc3211-leds", -1, NULL, 0);
|
|
if (IS_ERR(pdev)) {
|
|
ret = PTR_ERR(pdev);
|
|
platform_driver_unregister(&rdc3211_leds_driver);
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static void __exit rdc3211_leds_exit(void)
|
|
{
|
|
platform_driver_unregister(&rdc3211_leds_driver);
|
|
}
|
|
|
|
module_init(rdc3211_leds_init);
|
|
module_exit(rdc3211_leds_exit);
|
|
|
|
MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
|
|
MODULE_DESCRIPTION("RDC3211 LED driver");
|
|
MODULE_LICENSE("GPL");
|