eb25cb9956
This patch converts the IDE specific LED trigger to a generic disk activity LED trigger. The libata core is now a trigger source just like before the IDE disk driver. It's merely a replacement of the string ide by disk. The patch is taken from http://dev.gentoo.org/~josejx/ata.patch and is widely used by any ibook/powerbook owners with great satisfaction. Likewise, it is very often used successfully on different ARM platforms. Unlike the original patch, the existing 'ide-disk' trigger is still available for backward compatibility. That reduce the amount of patches in affected device trees out of the mainline kernel. For further development, the new name 'disk-activity' should be used. Cc: Joseph Jezak <josejx@gentoo.org> Cc: Jörg Sommer <joerg@alea.gnuu.de> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Stephan Linz <linz@li-pro.net> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
|
|
* LED Triggers Core
|
|
* For the HP Jornada 620/660/680/690 handhelds
|
|
*
|
|
* Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
|
|
* this driver is based on leds-spitz.c by Richard Purdie.
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/leds.h>
|
|
#include <asm/hd64461.h>
|
|
#include <mach/hp6xx.h>
|
|
|
|
static void hp6xxled_green_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
u8 v8;
|
|
|
|
v8 = inb(PKDR);
|
|
if (value)
|
|
outb(v8 & (~PKDR_LED_GREEN), PKDR);
|
|
else
|
|
outb(v8 | PKDR_LED_GREEN, PKDR);
|
|
}
|
|
|
|
static void hp6xxled_red_set(struct led_classdev *led_cdev,
|
|
enum led_brightness value)
|
|
{
|
|
u16 v16;
|
|
|
|
v16 = inw(HD64461_GPBDR);
|
|
if (value)
|
|
outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR);
|
|
else
|
|
outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR);
|
|
}
|
|
|
|
static struct led_classdev hp6xx_red_led = {
|
|
.name = "hp6xx:red",
|
|
.default_trigger = "hp6xx-charge",
|
|
.brightness_set = hp6xxled_red_set,
|
|
.flags = LED_CORE_SUSPENDRESUME,
|
|
};
|
|
|
|
static struct led_classdev hp6xx_green_led = {
|
|
.name = "hp6xx:green",
|
|
.default_trigger = "disk-activity",
|
|
.brightness_set = hp6xxled_green_set,
|
|
.flags = LED_CORE_SUSPENDRESUME,
|
|
};
|
|
|
|
static int hp6xxled_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
ret = devm_led_classdev_register(&pdev->dev, &hp6xx_red_led);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return devm_led_classdev_register(&pdev->dev, &hp6xx_green_led);
|
|
}
|
|
|
|
static struct platform_driver hp6xxled_driver = {
|
|
.probe = hp6xxled_probe,
|
|
.driver = {
|
|
.name = "hp6xx-led",
|
|
},
|
|
};
|
|
|
|
module_platform_driver(hp6xxled_driver);
|
|
|
|
MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
|
|
MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:hp6xx-led");
|