Commit 4276fd73 authored by Yoichi Yuasa's avatar Yoichi Yuasa Committed by Richard Purdie
Browse files

leds: Update Cobalt Qube series front LED support 



Update Cobalt Qube series front LED support.

Signed-off-by: default avatarYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: default avatarRalf Baechle <ralf@linux-mips.org>
Signed-off-by: default avatarRichard Purdie <rpurdie@rpsys.net>
parent 97da7aaf

drivers/leds/leds-cobalt-qube.c

+77 −18
Original line number Diff line number Diff line
@@ -3,40 +3,99 @@ 
 *

 * Control the Cobalt Qube/RaQ front LED

 */



#include <linux/init.h>

#include <linux/io.h>

#include <linux/ioport.h>

#include <linux/leds.h>

#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/types.h>

#include <linux/kernel.h>

#include <linux/device.h>

#include <linux/leds.h>

#include <asm/mach-cobalt/cobalt.h>



static void cobalt_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)

#define LED_FRONT_LEFT	0x01

#define LED_FRONT_RIGHT	0x02



static void __iomem *led_port;

static u8 led_value;



static void qube_front_led_set(struct led_classdev *led_cdev,

                               enum led_brightness brightness)

{

	if (brightness)

		COBALT_LED_PORT = COBALT_LED_BAR_LEFT | COBALT_LED_BAR_RIGHT;

		led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;

	else

		COBALT_LED_PORT = 0;

		led_value = ~(LED_FRONT_LEFT | LED_FRONT_RIGHT);

	writeb(led_value, led_port);

}



static struct led_classdev cobalt_led = {

       .name = "cobalt-front-led",

       .brightness_set = cobalt_led_set,

static struct led_classdev qube_front_led = {

	.name			= "qube-front",

	.brightness		= LED_FULL,

	.brightness_set		= qube_front_led_set,

	.default_trigger	= "ide-disk",

};



static int __init cobalt_led_init(void)

static int __devinit cobalt_qube_led_probe(struct platform_device *pdev)

{

	struct resource *res;

	int retval;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res)

		return -EBUSY;



	led_port = ioremap(res->start, res->end - res->start + 1);

	if (!led_port)

		return -ENOMEM;



	led_value = LED_FRONT_LEFT | LED_FRONT_RIGHT;

	writeb(led_value, led_port);



	retval = led_classdev_register(&pdev->dev, &qube_front_led);

	if (retval)

		goto err_iounmap;



	return 0;



err_iounmap:

	iounmap(led_port);

	led_port = NULL;



	return retval;

}



static int __devexit cobalt_qube_led_remove(struct platform_device *pdev)

{

	led_classdev_unregister(&qube_front_led);



	if (led_port) {

		iounmap(led_port);

		led_port = NULL;

	}



	return 0;

}



static struct platform_driver cobalt_qube_led_driver = {

	.probe	= cobalt_qube_led_probe,

	.remove	= __devexit_p(cobalt_qube_led_remove),

	.driver	= {

		.name	= "cobalt-qube-leds",

		.owner	= THIS_MODULE,

	},

};



static int __init cobalt_qube_led_init(void)

{

	return led_classdev_register(NULL, &cobalt_led);

	return platform_driver_register(&cobalt_qube_led_driver);

}



static void __exit cobalt_led_exit(void)

static void __exit cobalt_qube_led_exit(void)

{

	led_classdev_unregister(&cobalt_led);

	platform_driver_unregister(&cobalt_qube_led_driver);

}



module_init(cobalt_led_init);

module_exit(cobalt_led_exit);

module_init(cobalt_qube_led_init);

module_exit(cobalt_qube_led_exit);



MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("Front LED support for Cobalt Server");