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/*
* LED Triggers Core
*
* Copyright 2005-2006 Openedhand Ltd.
*
* Author: Richard Purdie <rpurdie@openedhand.com>
*
* 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/config.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <asm/mach-types.h>
#include <asm/arch/corgi.h>
#include <asm/arch/hardware.h>
#include <asm/arch/pxa-regs.h>
#include <asm/hardware/scoop.h>
static void corgiled_amber_set(struct led_classdev *led_cdev, enum led_brightness value)
{
if (value)
GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
else
GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
}
static void corgiled_green_set(struct led_classdev *led_cdev, enum led_brightness value)
{
if (value)
set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
else
reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
}
static struct led_classdev corgi_amber_led = {
.name = "corgi:amber",
.default_trigger = "sharpsl-charge",
.brightness_set = corgiled_amber_set,
};
static struct led_classdev corgi_green_led = {
.name = "corgi:green",
.default_trigger = "nand-disk",
.brightness_set = corgiled_green_set,
};
#ifdef CONFIG_PM
static int corgiled_suspend(struct platform_device *dev, pm_message_t state)
{
#ifdef CONFIG_LEDS_TRIGGERS
if (corgi_amber_led.trigger && strcmp(corgi_amber_led.trigger->name, "sharpsl-charge"))
#endif
led_classdev_suspend(&corgi_amber_led);
led_classdev_suspend(&corgi_green_led);
return 0;
}
static int corgiled_resume(struct platform_device *dev)
{
led_classdev_resume(&corgi_amber_led);
led_classdev_resume(&corgi_green_led);
return 0;
}
#endif
static int corgiled_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &corgi_amber_led);
if (ret < 0)
return ret;
ret = led_classdev_register(&pdev->dev, &corgi_green_led);
if (ret < 0)
led_classdev_unregister(&corgi_amber_led);
return ret;
}
static int corgiled_remove(struct platform_device *pdev)
{
led_classdev_unregister(&corgi_amber_led);
led_classdev_unregister(&corgi_green_led);
return 0;
}
static struct platform_driver corgiled_driver = {
.probe = corgiled_probe,
.remove = corgiled_remove,
#ifdef CONFIG_PM
.suspend = corgiled_suspend,
.resume = corgiled_resume,
#endif
.driver = {
.name = "corgi-led",
},
};
static int __init corgiled_init(void)
{
return platform_driver_register(&corgiled_driver);
}
static void __exit corgiled_exit(void)
{
platform_driver_unregister(&corgiled_driver);
}
module_init(corgiled_init);
module_exit(corgiled_exit);
MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
MODULE_DESCRIPTION("Corgi LED driver");
MODULE_LICENSE("GPL");
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