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Commit 373b32ab authored by Russell King's avatar Russell King
Browse files

ARM: move LED support code out of arch/arm/kernel/time.c 



Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 7921fc4a

arch/arm/kernel/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ obj-y := compat.o elf.o entry-armv.o entry-common.o irq.o \ 
		   process.o ptrace.o return_address.o setup.o signal.o \

		   sys_arm.o stacktrace.o time.o traps.o



obj-$(CONFIG_LEDS)		+= leds.o

obj-$(CONFIG_OC_ETM)		+= etm.o



obj-$(CONFIG_ISA_DMA_API)	+= dma.o

arch/arm/kernel/leds.c

0 → 100644
+115 −0
Original line number Diff line number Diff line 
/*

 * LED support code, ripped out of arch/arm/kernel/time.c

 *

 *  Copyright (C) 1994-2001 Russell King

 *

 * 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/init.h>

#include <linux/sysdev.h>



#include <asm/leds.h>



static void dummy_leds_event(led_event_t evt)

{

}



void (*leds_event)(led_event_t) = dummy_leds_event;



struct leds_evt_name {

	const char	name[8];

	int		on;

	int		off;

};



static const struct leds_evt_name evt_names[] = {

	{ "amber", led_amber_on, led_amber_off },

	{ "blue",  led_blue_on,  led_blue_off  },

	{ "green", led_green_on, led_green_off },

	{ "red",   led_red_on,   led_red_off   },

};



static ssize_t leds_store(struct sys_device *dev,

			struct sysdev_attribute *attr,

			const char *buf, size_t size)

{

	int ret = -EINVAL, len = strcspn(buf, " ");



	if (len > 0 && buf[len] == '\0')

		len--;



	if (strncmp(buf, "claim", len) == 0) {

		leds_event(led_claim);

		ret = size;

	} else if (strncmp(buf, "release", len) == 0) {

		leds_event(led_release);

		ret = size;

	} else {

		int i;



		for (i = 0; i < ARRAY_SIZE(evt_names); i++) {

			if (strlen(evt_names[i].name) != len ||

			    strncmp(buf, evt_names[i].name, len) != 0)

				continue;

			if (strncmp(buf+len, " on", 3) == 0) {

				leds_event(evt_names[i].on);

				ret = size;

			} else if (strncmp(buf+len, " off", 4) == 0) {

				leds_event(evt_names[i].off);

				ret = size;

			}

			break;

		}

	}

	return ret;

}



static SYSDEV_ATTR(event, 0200, NULL, leds_store);



static int leds_suspend(struct sys_device *dev, pm_message_t state)

{

	leds_event(led_stop);

	return 0;

}



static int leds_resume(struct sys_device *dev)

{

	leds_event(led_start);

	return 0;

}



static int leds_shutdown(struct sys_device *dev)

{

	leds_event(led_halted);

	return 0;

}



static struct sysdev_class leds_sysclass = {

	.name		= "leds",

	.shutdown	= leds_shutdown,

	.suspend	= leds_suspend,

	.resume		= leds_resume,

};



static struct sys_device leds_device = {

	.id		= 0,

	.cls		= &leds_sysclass,

};



static int __init leds_init(void)

{

	int ret;

	ret = sysdev_class_register(&leds_sysclass);

	if (ret == 0)

		ret = sysdev_register(&leds_device);

	if (ret == 0)

		ret = sysdev_create_file(&leds_device, &attr_event);

	return ret;

}



device_initcall(leds_init);



EXPORT_SYMBOL(leds_event);

arch/arm/kernel/time.c

+0 −104
Original line number Diff line number Diff line
@@ -79,110 +79,6 @@ static unsigned long dummy_gettimeoffset(void) 
}

#endif



#ifdef CONFIG_LEDS



static void dummy_leds_event(led_event_t evt)

{

}



void (*leds_event)(led_event_t) = dummy_leds_event;



struct leds_evt_name {

	const char	name[8];

	int		on;

	int		off;

};



static const struct leds_evt_name evt_names[] = {

	{ "amber", led_amber_on, led_amber_off },

	{ "blue",  led_blue_on,  led_blue_off  },

	{ "green", led_green_on, led_green_off },

	{ "red",   led_red_on,   led_red_off   },

};



static ssize_t leds_store(struct sys_device *dev,

			struct sysdev_attribute *attr,

			const char *buf, size_t size)

{

	int ret = -EINVAL, len = strcspn(buf, " ");



	if (len > 0 && buf[len] == '\0')

		len--;



	if (strncmp(buf, "claim", len) == 0) {

		leds_event(led_claim);

		ret = size;

	} else if (strncmp(buf, "release", len) == 0) {

		leds_event(led_release);

		ret = size;

	} else {

		int i;



		for (i = 0; i < ARRAY_SIZE(evt_names); i++) {

			if (strlen(evt_names[i].name) != len ||

			    strncmp(buf, evt_names[i].name, len) != 0)

				continue;

			if (strncmp(buf+len, " on", 3) == 0) {

				leds_event(evt_names[i].on);

				ret = size;

			} else if (strncmp(buf+len, " off", 4) == 0) {

				leds_event(evt_names[i].off);

				ret = size;

			}

			break;

		}

	}

	return ret;

}



static SYSDEV_ATTR(event, 0200, NULL, leds_store);



static int leds_suspend(struct sys_device *dev, pm_message_t state)

{

	leds_event(led_stop);

	return 0;

}



static int leds_resume(struct sys_device *dev)

{

	leds_event(led_start);

	return 0;

}



static int leds_shutdown(struct sys_device *dev)

{

	leds_event(led_halted);

	return 0;

}



static struct sysdev_class leds_sysclass = {

	.name		= "leds",

	.shutdown	= leds_shutdown,

	.suspend	= leds_suspend,

	.resume		= leds_resume,

};



static struct sys_device leds_device = {

	.id		= 0,

	.cls		= &leds_sysclass,

};



static int __init leds_init(void)

{

	int ret;

	ret = sysdev_class_register(&leds_sysclass);

	if (ret == 0)

		ret = sysdev_register(&leds_device);

	if (ret == 0)

		ret = sysdev_create_file(&leds_device, &attr_event);

	return ret;

}



device_initcall(leds_init);



EXPORT_SYMBOL(leds_event);

#endif



#ifdef CONFIG_LEDS_TIMER

static inline void do_leds(void)

{