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> -- SVN-Revision: 9748
This commit is contained in:
Felix Fietkau
parent
2da3f6a256
commit
985ee9fc8f
4 changed files with 217 additions and 2 deletions
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@ -334,6 +334,22 @@ endef
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$(eval $(call KernelPackage,leds-wrap))
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define KernelPackage/leds-alix
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SUBMENU:=$(OTHER_MENU)
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TITLE:=PCengines ALIX LED support
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DEPENDS:=@TARGET_x86
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KCONFIG:=CONFIG_LEDS_ALIX
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FILES:=$(LINUX_DIR)/drivers/leds/leds-alix.$(LINUX_KMOD_SUFFIX)
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AUTOLOAD:=$(call AutoLoad,50,leds-alix)
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endef
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define KernelPackage/leds-alix/description
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Kernel module for PCengines ALIX LEDs
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endef
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$(eval $(call KernelPackage,leds-alix))
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define KernelPackage/ledtrig-morse
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SUBMENU:=$(OTHER_MENU)
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TITLE:=LED Morse Trigger
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172
target/linux/generic-2.6/files/drivers/leds/leds-alix.c
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172
target/linux/generic-2.6/files/drivers/leds/leds-alix.c
Normal file
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@ -0,0 +1,172 @@
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/*
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* LEDs driver for PCEngines ALIX 2/3 series
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*
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* Copyright (C) 2007 Petr Liebman
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*
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* Based on leds-wrap.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/leds.h>
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#include <linux/err.h>
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#include <asm/io.h>
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#define DRVNAME "alix-led"
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#define ALIX_LED1_PORT (0x6100)
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#define ALIX_LED1_ON (1<<22)
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#define ALIX_LED1_OFF (1<<6)
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#define ALIX_LED2_PORT (0x6180)
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#define ALIX_LED2_ON (1<<25)
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#define ALIX_LED2_OFF (1<<9)
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#define ALIX_LED3_PORT (0x6180)
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#define ALIX_LED3_ON (1<<27)
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#define ALIX_LED3_OFF (1<<11)
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static struct platform_device *pdev;
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static void alix_led_set_1(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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if (value)
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outl(ALIX_LED1_ON, ALIX_LED1_PORT);
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else
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outl(ALIX_LED1_OFF, ALIX_LED1_PORT);
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}
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static void alix_led_set_2(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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if (value)
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outl(ALIX_LED2_ON, ALIX_LED2_PORT);
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else
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outl(ALIX_LED2_OFF, ALIX_LED2_PORT);
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}
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static void alix_led_set_3(struct led_classdev *led_cdev,
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enum led_brightness value)
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{
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if (value)
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outl(ALIX_LED3_ON, ALIX_LED3_PORT);
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else
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outl(ALIX_LED3_OFF, ALIX_LED3_PORT);
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}
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static struct led_classdev alix_led_1 = {
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.name = "alix:1",
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.brightness_set = alix_led_set_1,
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};
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static struct led_classdev alix_led_2 = {
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.name = "alix:2",
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.brightness_set = alix_led_set_2,
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};
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static struct led_classdev alix_led_3 = {
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.name = "alix:3",
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.brightness_set = alix_led_set_3,
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};
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#ifdef CONFIG_PM
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static int alix_led_suspend(struct platform_device *dev,
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pm_message_t state)
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{
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led_classdev_suspend(&alix_led_1);
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led_classdev_suspend(&alix_led_2);
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led_classdev_suspend(&alix_led_3);
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return 0;
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}
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static int alix_led_resume(struct platform_device *dev)
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{
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led_classdev_resume(&alix_led_1);
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led_classdev_resume(&alix_led_2);
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led_classdev_resume(&alix_led_3);
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return 0;
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}
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#else
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#define alix_led_suspend NULL
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#define alix_led_resume NULL
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#endif
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static int alix_led_probe(struct platform_device *pdev)
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{
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int ret;
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ret = led_classdev_register(&pdev->dev, &alix_led_1);
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if (ret >= 0)
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{
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ret = led_classdev_register(&pdev->dev, &alix_led_2);
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if (ret >= 0)
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{
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ret = led_classdev_register(&pdev->dev, &alix_led_3);
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if (ret < 0)
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led_classdev_unregister(&alix_led_2);
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}
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if (ret < 0)
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led_classdev_unregister(&alix_led_1);
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}
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return ret;
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}
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static int alix_led_remove(struct platform_device *pdev)
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{
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led_classdev_unregister(&alix_led_1);
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led_classdev_unregister(&alix_led_2);
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led_classdev_unregister(&alix_led_3);
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return 0;
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}
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static struct platform_driver alix_led_driver = {
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.probe = alix_led_probe,
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.remove = alix_led_remove,
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.suspend = alix_led_suspend,
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.resume = alix_led_resume,
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.driver = {
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.name = DRVNAME,
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.owner = THIS_MODULE,
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},
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};
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static int __init alix_led_init(void)
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{
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int ret;
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ret = platform_driver_register(&alix_led_driver);
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if (ret < 0)
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goto out;
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pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0);
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if (IS_ERR(pdev)) {
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ret = PTR_ERR(pdev);
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platform_driver_unregister(&alix_led_driver);
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goto out;
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}
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out:
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return ret;
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}
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static void __exit alix_led_exit(void)
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{
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platform_device_unregister(pdev);
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platform_driver_unregister(&alix_led_driver);
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}
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module_init(alix_led_init);
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module_exit(alix_led_exit);
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MODULE_AUTHOR("Petr Liebman");
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MODULE_DESCRIPTION("PCEngines ALIX LED driver");
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MODULE_LICENSE("GPL");
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27
target/linux/generic-2.6/patches-2.6.23/401-led_alix.patch
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27
target/linux/generic-2.6/patches-2.6.23/401-led_alix.patch
Normal file
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@ -0,0 +1,27 @@
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diff -Nur linux-2.6.23.1.orig/drivers/leds/Kconfig linux-2.6.23.1/drivers/leds/Kconfig
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--- linux-2.6.23.1.orig/drivers/leds/Kconfig 2007-10-12 12:43:44.000000000 -0400
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+++ linux-2.6.23.1/drivers/leds/Kconfig 2007-10-31 02:36:22.000000000 -0400
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@@ -81,6 +81,12 @@
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help
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This option enables support for the PCEngines WRAP programmable LEDs.
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+config LEDS_ALIX
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+ tristate "LED Support for the ALIX 2/3 boards"
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+ depends on LEDS_CLASS
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+ help
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+ This option enables support for the three LEDs on the PCEngines ALIX 2/3 boards.
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+
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config LEDS_H1940
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tristate "LED Support for iPAQ H1940 device"
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depends LEDS_CLASS && ARCH_H1940
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diff -Nur linux-2.6.23.1.orig/drivers/leds/Makefile linux-2.6.23.1/drivers/leds/Makefile
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--- linux-2.6.23.1.orig/drivers/leds/Makefile 2007-10-12 12:43:44.000000000 -0400
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+++ linux-2.6.23.1/drivers/leds/Makefile 2007-10-31 02:36:17.000000000 -0400
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@@ -14,6 +14,7 @@
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obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
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obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
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obj-$(CONFIG_LEDS_WRAP) += leds-wrap.o
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+obj-$(CONFIG_LEDS_ALIX) += leds-alix.o
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obj-$(CONFIG_LEDS_H1940) += leds-h1940.o
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obj-$(CONFIG_LEDS_COBALT) += leds-cobalt.o
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obj-$(CONFIG_LEDS_GPIO) += leds-gpio.o
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@ -7,10 +7,10 @@
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define Profile/Alix
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NAME:=PCEngines Alix
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PACKAGES:=kmod-via-rhine
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PACKAGES:=kmod-via-rhine kmod-leds-alix
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endef
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define Profile/Alix/Description
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Package set compatible with the PCEngines Alix. Contains VIA Rhine III VT6105M support
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Package set compatible with the PCEngines Alix. Contains VIA Rhine III VT6105M and LED support
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endef
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$(eval $(call Profile,Alix))
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