Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ac67e23b authored by Phil Sutter's avatar Phil Sutter Committed by Richard Purdie
Browse files

leds: Add rb532 LED driver for the User LED 



Mikrotik built six LEDs into the Routerboard 532, from which one is
destined for custom use, the so called "User LED". This patch adds a
driver for it, based on the LEDs class.

Signed-off-by: default avatarPhil Sutter <n0-1@freewrt.org>
Acked-by: default avatarFlorian Fainelli <florian@openwrt.org>
Signed-off-by: default avatarRichard Purdie <rpurdie@linux.intel.com>
parent defb512d

drivers/leds/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -31,6 +31,13 @@ config LEDS_LOCOMO 
	  This option enables support for the LEDs on Sharp Locomo.

	  Zaurus models SL-5500 and SL-5600.



config LEDS_MIKROTIK_RB532

	tristate "LED Support for Mikrotik Routerboard 532"

	depends on LEDS_CLASS && MIKROTIK_RB532

	help

	  This option enables support for the so called "User LED" of

	  Mikrotik's Routerboard 532.



config LEDS_S3C24XX

	tristate "LED Support for Samsung S3C24XX GPIO LEDs"

	depends on LEDS_CLASS && ARCH_S3C2410

drivers/leds/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ obj-$(CONFIG_LEDS_TRIGGERS) += led-triggers.o 
# LED Platform Drivers

obj-$(CONFIG_LEDS_ATMEL_PWM)		+= leds-atmel-pwm.o

obj-$(CONFIG_LEDS_LOCOMO)		+= leds-locomo.o

obj-$(CONFIG_LEDS_MIKROTIK_RB532)	+= leds-rb532.o

obj-$(CONFIG_LEDS_S3C24XX)		+= leds-s3c24xx.o

obj-$(CONFIG_LEDS_AMS_DELTA)		+= leds-ams-delta.o

obj-$(CONFIG_LEDS_NET48XX)		+= leds-net48xx.o

drivers/leds/leds-rb532.c

0 → 100644
+77 −0
Original line number Diff line number Diff line 
/*

 * LEDs driver for the "User LED" on Routerboard532

 *

 * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>

 *

 * Based on leds-cobalt-qube.c by Florian Fainelly and

 * rb-diag.c (my own standalone driver for both LED and

 * button of Routerboard532).

 */



#include <linux/leds.h>

#include <linux/module.h>

#include <linux/platform_device.h>



#include <asm/mach-rc32434/gpio.h>

#include <asm/mach-rc32434/rb.h>



static void rb532_led_set(struct led_classdev *cdev,

                          enum led_brightness brightness)

{

	if (brightness)

		set_latch_u5(LO_ULED, 0);



	else

		set_latch_u5(0, LO_ULED);

}



static enum led_brightness rb532_led_get(struct led_classdev *cdev)

{

	return (get_latch_u5() & LO_ULED) ? LED_FULL : LED_OFF;

}



static struct led_classdev rb532_uled = {

	.name = "uled",

	.brightness_set = rb532_led_set,

	.brightness_get = rb532_led_get,

	.default_trigger = "nand-disk",

};



static int __devinit rb532_led_probe(struct platform_device *pdev)

{

	return led_classdev_register(&pdev->dev, &rb532_uled);

}



static int __devexit rb532_led_remove(struct platform_device *pdev)

{

	led_classdev_unregister(&rb532_uled);

	return 0;

}



static struct platform_driver rb532_led_driver = {

	.probe = rb532_led_probe,

	.remove = __devexit_p(rb532_led_remove),

	.driver = {

		.name = "rb532-led",

		.owner = THIS_MODULE,

	},

};



static int __init rb532_led_init(void)

{

	return platform_driver_register(&rb532_led_driver);

}



static void __exit rb532_led_exit(void)

{

	platform_driver_unregister(&rb532_led_driver);

}



module_init(rb532_led_init);

module_exit(rb532_led_exit);



MODULE_ALIAS("platform:rb532-led");



MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("User LED support for Routerboard532");

MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");