Commit d39a7a63 authored by Kristoffer Ericson's avatar Kristoffer Ericson Committed by Richard Purdie
Browse files

leds: Add HP Jornada 6xx driver 



Add support for the LEDs on the HP Jornada 620/660/680/690 devices.

Signed-off-by: default avatarKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: default avatarRichard Purdie <rpurdie@rpsys.net>
parent 8fe217e7

drivers/leds/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -91,6 +91,13 @@ config LEDS_COBALT_RAQ 
	help

	  This option enables support for the Cobalt Raq series LEDs.



config LEDS_HP6XX

	tristate "LED Support for the HP Jornada 6xx"

	depends on LEDS_CLASS && SH_HP6XX

	help

	  This option enables led support for the handheld

	  HP Jornada 620/660/680/690.



config LEDS_GPIO

	tristate "LED Support for GPIO connected LEDs"

	depends on LEDS_CLASS && GENERIC_GPIO

drivers/leds/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ obj-$(CONFIG_LEDS_COBALT_RAQ) += leds-cobalt-raq.o 
obj-$(CONFIG_LEDS_GPIO)			+= leds-gpio.o

obj-$(CONFIG_LEDS_CM_X270)              += leds-cm-x270.o

obj-$(CONFIG_LEDS_CLEVO_MAIL)		+= leds-clevo-mail.o

obj-$(CONFIG_LEDS_HP6XX)		+= leds-hp6xx.o



# LED Triggers

obj-$(CONFIG_LEDS_TRIGGER_TIMER)	+= ledtrig-timer.o

drivers/leds/leds-hp6xx.c

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+120 −0
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/*

 * 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/kernel.h>

#include <linux/init.h>

#include <linux/platform_device.h>

#include <linux/leds.h>

#include <asm/hd64461.h>

#include <asm/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,

};



static struct led_classdev hp6xx_green_led = {

	.name			= "hp6xx:green",

	.default_trigger	= "ide-disk",

	.brightness_set		= hp6xxled_green_set,

};



#ifdef CONFIG_PM

static int hp6xxled_suspend(struct platform_device *dev, pm_message_t state)

{

	led_classdev_suspend(&hp6xx_red_led);

	led_classdev_suspend(&hp6xx_green_led);

	return 0;

}



static int hp6xxled_resume(struct platform_device *dev)

{

	led_classdev_resume(&hp6xx_red_led);

	led_classdev_resume(&hp6xx_green_led);

	return 0;

}

#endif



static int hp6xxled_probe(struct platform_device *pdev)

{

	int ret;



	ret = led_classdev_register(&pdev->dev, &hp6xx_red_led);

	if (ret < 0)

		return ret;



	ret = led_classdev_register(&pdev->dev, &hp6xx_green_led);

	if (ret < 0)

		led_classdev_unregister(&hp6xx_red_led);



	return ret;

}



static int hp6xxled_remove(struct platform_device *pdev)

{

	led_classdev_unregister(&hp6xx_red_led);

	led_classdev_unregister(&hp6xx_green_led);



	return 0;

}



static struct platform_driver hp6xxled_driver = {

	.probe		= hp6xxled_probe,

	.remove		= hp6xxled_remove,

#ifdef CONFIG_PM

	.suspend	= hp6xxled_suspend,

	.resume		= hp6xxled_resume,

#endif

	.driver		= {

		.name		= "hp6xx-led",

	},

};



static int __init hp6xxled_init(void)

{

	return platform_driver_register(&hp6xxled_driver);

}



static void __exit hp6xxled_exit(void)

{

	platform_driver_unregister(&hp6xxled_driver);

}



module_init(hp6xxled_init);

module_exit(hp6xxled_exit);



MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");

MODULE_DESCRIPTION("HP Jornada 6xx LED driver");

MODULE_LICENSE("GPL");