mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 13:22:23 +00:00
6c152beefb
As discussed on LKML some notion of 'function' is needed in LED naming. This patch adds this to the documentation and standardises existing LED drivers. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
127 lines
3.0 KiB
C
127 lines
3.0 KiB
C
/*
|
|
* 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/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/leds.h>
|
|
#include <asm/hardware/scoop.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/pxa-regs.h>
|
|
#include <asm/arch/spitz.h>
|
|
|
|
static void spitzled_amber_set(struct led_classdev *led_cdev, enum led_brightness value)
|
|
{
|
|
if (value)
|
|
set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
|
|
else
|
|
reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE);
|
|
}
|
|
|
|
static void spitzled_green_set(struct led_classdev *led_cdev, enum led_brightness value)
|
|
{
|
|
if (value)
|
|
set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
|
|
else
|
|
reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN);
|
|
}
|
|
|
|
static struct led_classdev spitz_amber_led = {
|
|
.name = "spitz:amber:charge",
|
|
.default_trigger = "sharpsl-charge",
|
|
.brightness_set = spitzled_amber_set,
|
|
};
|
|
|
|
static struct led_classdev spitz_green_led = {
|
|
.name = "spitz:green:hddactivity",
|
|
.default_trigger = "ide-disk",
|
|
.brightness_set = spitzled_green_set,
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static int spitzled_suspend(struct platform_device *dev, pm_message_t state)
|
|
{
|
|
#ifdef CONFIG_LEDS_TRIGGERS
|
|
if (spitz_amber_led.trigger && strcmp(spitz_amber_led.trigger->name, "sharpsl-charge"))
|
|
#endif
|
|
led_classdev_suspend(&spitz_amber_led);
|
|
led_classdev_suspend(&spitz_green_led);
|
|
return 0;
|
|
}
|
|
|
|
static int spitzled_resume(struct platform_device *dev)
|
|
{
|
|
led_classdev_resume(&spitz_amber_led);
|
|
led_classdev_resume(&spitz_green_led);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int spitzled_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
if (machine_is_akita()) {
|
|
spitz_green_led.name = "spitz:green:mail";
|
|
spitz_green_led.default_trigger = "nand-disk";
|
|
}
|
|
|
|
ret = led_classdev_register(&pdev->dev, &spitz_amber_led);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &spitz_green_led);
|
|
if (ret < 0)
|
|
led_classdev_unregister(&spitz_amber_led);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int spitzled_remove(struct platform_device *pdev)
|
|
{
|
|
led_classdev_unregister(&spitz_amber_led);
|
|
led_classdev_unregister(&spitz_green_led);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver spitzled_driver = {
|
|
.probe = spitzled_probe,
|
|
.remove = spitzled_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = spitzled_suspend,
|
|
.resume = spitzled_resume,
|
|
#endif
|
|
.driver = {
|
|
.name = "spitz-led",
|
|
},
|
|
};
|
|
|
|
static int __init spitzled_init(void)
|
|
{
|
|
return platform_driver_register(&spitzled_driver);
|
|
}
|
|
|
|
static void __exit spitzled_exit(void)
|
|
{
|
|
platform_driver_unregister(&spitzled_driver);
|
|
}
|
|
|
|
module_init(spitzled_init);
|
|
module_exit(spitzled_exit);
|
|
|
|
MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
|
|
MODULE_DESCRIPTION("Spitz LED driver");
|
|
MODULE_LICENSE("GPL");
|