125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*
|
|
* drivers/leds/leds-cm-x270.c
|
|
*
|
|
* Copyright 2007 CompuLab Ltd.
|
|
* Author: Mike Rapoport <mike@compulab.co.il>
|
|
*
|
|
* Based on leds-corgi.c
|
|
* 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/arch/hardware.h>
|
|
#include <asm/arch/pxa-regs.h>
|
|
|
|
#define GPIO_RED_LED (93)
|
|
#define GPIO_GREEN_LED (94)
|
|
|
|
static void cmx270_red_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
if (value)
|
|
GPCR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED);
|
|
else
|
|
GPSR(GPIO_RED_LED) = GPIO_bit(GPIO_RED_LED);
|
|
}
|
|
|
|
static void cmx270_green_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
if (value)
|
|
GPCR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED);
|
|
else
|
|
GPSR(GPIO_GREEN_LED) = GPIO_bit(GPIO_GREEN_LED);
|
|
}
|
|
|
|
static struct led_classdev cmx270_red_led = {
|
|
.name = "cm-x270:red",
|
|
.default_trigger = "nand-disk",
|
|
.brightness_set = cmx270_red_set,
|
|
};
|
|
|
|
static struct led_classdev cmx270_green_led = {
|
|
.name = "cm-x270:green",
|
|
.default_trigger = "heartbeat",
|
|
.brightness_set = cmx270_green_set,
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static int cmx270led_suspend(struct platform_device *dev, pm_message_t state)
|
|
{
|
|
led_classdev_suspend(&cmx270_red_led);
|
|
led_classdev_suspend(&cmx270_green_led);
|
|
return 0;
|
|
}
|
|
|
|
static int cmx270led_resume(struct platform_device *dev)
|
|
{
|
|
led_classdev_resume(&cmx270_red_led);
|
|
led_classdev_resume(&cmx270_green_led);
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static int cmx270led_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &cmx270_red_led);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = led_classdev_register(&pdev->dev, &cmx270_green_led);
|
|
if (ret < 0)
|
|
led_classdev_unregister(&cmx270_red_led);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int cmx270led_remove(struct platform_device *pdev)
|
|
{
|
|
led_classdev_unregister(&cmx270_red_led);
|
|
led_classdev_unregister(&cmx270_green_led);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver cmx270led_driver = {
|
|
.probe = cmx270led_probe,
|
|
.remove = cmx270led_remove,
|
|
#ifdef CONFIG_PM
|
|
.suspend = cmx270led_suspend,
|
|
.resume = cmx270led_resume,
|
|
#endif
|
|
.driver = {
|
|
.name = "cm-x270-led",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init cmx270led_init(void)
|
|
{
|
|
return platform_driver_register(&cmx270led_driver);
|
|
}
|
|
|
|
static void __exit cmx270led_exit(void)
|
|
{
|
|
platform_driver_unregister(&cmx270led_driver);
|
|
}
|
|
|
|
module_init(cmx270led_init);
|
|
module_exit(cmx270led_exit);
|
|
|
|
MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
|
|
MODULE_DESCRIPTION("CM-x270 LED driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:cm-x270-led");
|