LED driver for PCEngines ALIX boards

This patch adds a driver for the three LEDs that exists on the
PCEngines ALIX 2 and 3 series boards.

The driver is also added to the Alix profile.

Signed-off-by: Petr Liebman <petrliebman@gmail.com>

--


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9748 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2007-12-14 00:52:15 +00:00
parent b85354ab6e
commit 613ab757a3
4 changed files with 217 additions and 2 deletions

View File

@ -334,6 +334,22 @@ endef
$(eval $(call KernelPackage,leds-wrap)) $(eval $(call KernelPackage,leds-wrap))
define KernelPackage/leds-alix
SUBMENU:=$(OTHER_MENU)
TITLE:=PCengines ALIX LED support
DEPENDS:=@TARGET_x86
KCONFIG:=CONFIG_LEDS_ALIX
FILES:=$(LINUX_DIR)/drivers/leds/leds-alix.$(LINUX_KMOD_SUFFIX)
AUTOLOAD:=$(call AutoLoad,50,leds-alix)
endef
define KernelPackage/leds-alix/description
Kernel module for PCengines ALIX LEDs
endef
$(eval $(call KernelPackage,leds-alix))
define KernelPackage/ledtrig-morse define KernelPackage/ledtrig-morse
SUBMENU:=$(OTHER_MENU) SUBMENU:=$(OTHER_MENU)
TITLE:=LED Morse Trigger TITLE:=LED Morse Trigger

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@ -0,0 +1,172 @@
/*
* LEDs driver for PCEngines ALIX 2/3 series
*
* Copyright (C) 2007 Petr Liebman
*
* Based on leds-wrap.c
*
* 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 <linux/err.h>
#include <asm/io.h>
#define DRVNAME "alix-led"
#define ALIX_LED1_PORT (0x6100)
#define ALIX_LED1_ON (1<<22)
#define ALIX_LED1_OFF (1<<6)
#define ALIX_LED2_PORT (0x6180)
#define ALIX_LED2_ON (1<<25)
#define ALIX_LED2_OFF (1<<9)
#define ALIX_LED3_PORT (0x6180)
#define ALIX_LED3_ON (1<<27)
#define ALIX_LED3_OFF (1<<11)
static struct platform_device *pdev;
static void alix_led_set_1(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
outl(ALIX_LED1_ON, ALIX_LED1_PORT);
else
outl(ALIX_LED1_OFF, ALIX_LED1_PORT);
}
static void alix_led_set_2(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
outl(ALIX_LED2_ON, ALIX_LED2_PORT);
else
outl(ALIX_LED2_OFF, ALIX_LED2_PORT);
}
static void alix_led_set_3(struct led_classdev *led_cdev,
enum led_brightness value)
{
if (value)
outl(ALIX_LED3_ON, ALIX_LED3_PORT);
else
outl(ALIX_LED3_OFF, ALIX_LED3_PORT);
}
static struct led_classdev alix_led_1 = {
.name = "alix:1",
.brightness_set = alix_led_set_1,
};
static struct led_classdev alix_led_2 = {
.name = "alix:2",
.brightness_set = alix_led_set_2,
};
static struct led_classdev alix_led_3 = {
.name = "alix:3",
.brightness_set = alix_led_set_3,
};
#ifdef CONFIG_PM
static int alix_led_suspend(struct platform_device *dev,
pm_message_t state)
{
led_classdev_suspend(&alix_led_1);
led_classdev_suspend(&alix_led_2);
led_classdev_suspend(&alix_led_3);
return 0;
}
static int alix_led_resume(struct platform_device *dev)
{
led_classdev_resume(&alix_led_1);
led_classdev_resume(&alix_led_2);
led_classdev_resume(&alix_led_3);
return 0;
}
#else
#define alix_led_suspend NULL
#define alix_led_resume NULL
#endif
static int alix_led_probe(struct platform_device *pdev)
{
int ret;
ret = led_classdev_register(&pdev->dev, &alix_led_1);
if (ret >= 0)
{
ret = led_classdev_register(&pdev->dev, &alix_led_2);
if (ret >= 0)
{
ret = led_classdev_register(&pdev->dev, &alix_led_3);
if (ret < 0)
led_classdev_unregister(&alix_led_2);
}
if (ret < 0)
led_classdev_unregister(&alix_led_1);
}
return ret;
}
static int alix_led_remove(struct platform_device *pdev)
{
led_classdev_unregister(&alix_led_1);
led_classdev_unregister(&alix_led_2);
led_classdev_unregister(&alix_led_3);
return 0;
}
static struct platform_driver alix_led_driver = {
.probe = alix_led_probe,
.remove = alix_led_remove,
.suspend = alix_led_suspend,
.resume = alix_led_resume,
.driver = {
.name = DRVNAME,
.owner = THIS_MODULE,
},
};
static int __init alix_led_init(void)
{
int ret;
ret = platform_driver_register(&alix_led_driver);
if (ret < 0)
goto out;
pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
if (IS_ERR(pdev)) {
ret = PTR_ERR(pdev);
platform_driver_unregister(&alix_led_driver);
goto out;
}
out:
return ret;
}
static void __exit alix_led_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&alix_led_driver);
}
module_init(alix_led_init);
module_exit(alix_led_exit);
MODULE_AUTHOR("Petr Liebman");
MODULE_DESCRIPTION("PCEngines ALIX LED driver");
MODULE_LICENSE("GPL");

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@ -0,0 +1,27 @@
diff -Nur linux-2.6.23.1.orig/drivers/leds/Kconfig linux-2.6.23.1/drivers/leds/Kconfig
--- linux-2.6.23.1.orig/drivers/leds/Kconfig 2007-10-12 12:43:44.000000000 -0400
+++ linux-2.6.23.1/drivers/leds/Kconfig 2007-10-31 02:36:22.000000000 -0400
@@ -81,6 +81,12 @@
help
This option enables support for the PCEngines WRAP programmable LEDs.
+config LEDS_ALIX
+ tristate "LED Support for the ALIX 2/3 boards"
+ depends on LEDS_CLASS
+ help
+ This option enables support for the three LEDs on the PCEngines ALIX 2/3 boards.
+
config LEDS_H1940
tristate "LED Support for iPAQ H1940 device"
depends LEDS_CLASS && ARCH_H1940
diff -Nur linux-2.6.23.1.orig/drivers/leds/Makefile linux-2.6.23.1/drivers/leds/Makefile
--- linux-2.6.23.1.orig/drivers/leds/Makefile 2007-10-12 12:43:44.000000000 -0400
+++ linux-2.6.23.1/drivers/leds/Makefile 2007-10-31 02:36:17.000000000 -0400
@@ -14,6 +14,7 @@
obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o
+obj-$(CONFIG_LEDS_ALIX) += leds-alix.o
obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
obj-$(CONFIG_LEDS_COBALT) += leds-cobalt.o
obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o

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@ -7,10 +7,10 @@
define Profile/Alix define Profile/Alix
NAME:=PCEngines Alix NAME:=PCEngines Alix
PACKAGES:=kmod-via-rhine PACKAGES:=kmod-via-rhine kmod-leds-alix
endef endef
define Profile/Alix/Description define Profile/Alix/Description
Package set compatible with the PCEngines Alix. Contains VIA Rhine III VT6105M support Package set compatible with the PCEngines Alix. Contains VIA Rhine III VT6105M and LED support
endef endef
$(eval $(call Profile,Alix)) $(eval $(call Profile,Alix))