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authorFlorian Fainelli <florian@openwrt.org>2007-03-02 13:03:50 +0000
committerFlorian Fainelli <florian@openwrt.org>2007-03-02 13:03:50 +0000
commit3e952891496fe1309fc93bc64c69906227d2e6de (patch)
treeeba9f0c16a1d5203aba9de96ff8f7619e0eb33b0 /target/linux/au1000-2.6/patches
parent28ab697fae8067ac8b46c34953767b5d071db44b (diff)
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Add a LED driver for MTX-1 boards, yeah baby
SVN-Revision: 6454
Diffstat (limited to 'target/linux/au1000-2.6/patches')
-rw-r--r--target/linux/au1000-2.6/patches/011-mtx1_leds.patch148
1 files changed, 148 insertions, 0 deletions
diff --git a/target/linux/au1000-2.6/patches/011-mtx1_leds.patch b/target/linux/au1000-2.6/patches/011-mtx1_leds.patch
new file mode 100644
index 0000000000..350c531fbe
--- /dev/null
+++ b/target/linux/au1000-2.6/patches/011-mtx1_leds.patch
@@ -0,0 +1,148 @@
+diff -urN linux-2.6.19.2/drivers/leds/Kconfig linux-2.6.19.2.new/drivers/leds/Kconfig
+--- linux-2.6.19.2/drivers/leds/Kconfig 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.new/drivers/leds/Kconfig 2007-03-02 13:50:28.000000000 +0100
+@@ -76,6 +76,13 @@
+ This option enables support for the Soekris net4801 and net4826 error
+ LED.
+
++config LEDS_MTX1
++ tristate "LED Support for MTX-1 boards"
++ depends on LEDS_CLASS && MIPS_MTX1
++ help
++ This option enables support for the MTX-1 power and status LED.
++
++
+ comment "LED Triggers"
+
+ config LEDS_TRIGGERS
+diff -urN linux-2.6.19.2/drivers/leds/Makefile linux-2.6.19.2.new/drivers/leds/Makefile
+--- linux-2.6.19.2/drivers/leds/Makefile 2007-01-10 20:10:37.000000000 +0100
++++ linux-2.6.19.2.new/drivers/leds/Makefile 2007-03-02 13:49:35.000000000 +0100
+@@ -13,6 +13,7 @@
+ obj-$(CONFIG_LEDS_S3C24XX) += leds-s3c24xx.o
+ obj-$(CONFIG_LEDS_AMS_DELTA) += leds-ams-delta.o
+ obj-$(CONFIG_LEDS_NET48XX) += leds-net48xx.o
++obj-$(CONFIG_LEDS_MTX1) += leds-mtx1.o
+
+ # LED Triggers
+ obj-$(CONFIG_LEDS_TRIGGER_TIMER) += ledtrig-timer.o
+diff -urN linux-2.6.19.2/drivers/leds/leds-mtx1.c linux-2.6.19.2.new/drivers/leds/leds-mtx1.c
+--- linux-2.6.19.2/drivers/leds/leds-mtx1.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.19.2.new/drivers/leds/leds-mtx1.c 2007-03-02 13:49:08.000000000 +0100
+@@ -0,0 +1,116 @@
++/*
++ * LED driver for MTX-1 boards
++ *
++ * Copyright 2007 Florian Fainelli <florian@openwrt.org>
++ *
++ * 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/mach-au1x00/au1000.h>
++
++static struct platform_device *pdev;
++
++static void mtx1_green_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
++{
++ /* The power LED cannot be controlled the same way as for the Status LED */
++ if (brightness) {
++ au_writel( 0x18000800, GPIO2_OUTPUT );
++ } else {
++ au_writel( 0x18000000, GPIO2_OUTPUT);
++ }
++}
++
++static void mtx1_red_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
++{
++ /* We store GPIO address (originally address - 200) in the "flags" field*/
++ unsigned long pinmask = 1 << led_cdev->flags;
++ if (brightness) {
++ au_writel((pinmask << 16) | pinmask, GPIO2_OUTPUT);
++ } else {
++ au_writel((pinmask << 16) | 0, GPIO2_OUTPUT);
++ }
++}
++
++static struct led_classdev mtx1_green_led = {
++ .name = "mtx1:green",
++ .brightness_set = mtx1_green_led_set,
++};
++
++static struct led_classdev mtx1_red_led = {
++ .name = "mtx1:red",
++ .flags = 12,
++ .brightness_set = mtx1_red_led_set,
++ .default_trigger = "ide-disk",
++};
++
++static int mtx1_leds_probe(struct platform_device *pdev)
++{
++ int ret;
++
++ ret = led_classdev_register(&pdev->dev, &mtx1_green_led);
++ if (ret < 0)
++ goto out;
++
++ ret = led_classdev_register(&pdev->dev, &mtx1_red_led);
++ if (ret < 0)
++ led_classdev_unregister(&mtx1_green_led);
++
++out:
++ return ret;
++}
++
++static int mtx1_leds_remove(struct platform_device *pdev)
++{
++ led_classdev_unregister(&mtx1_green_led);
++ led_classdev_unregister(&mtx1_red_led);
++ return 0;
++}
++
++static struct platform_driver mtx1_leds_driver = {
++ .probe = mtx1_leds_probe,
++ .remove = mtx1_leds_remove,
++ .driver = {
++ .name = "mtx1-leds",
++ }
++};
++
++static int __init mtx1_leds_init(void)
++{
++ int ret;
++
++ ret = platform_driver_register(&mtx1_leds_driver);
++ if (ret < 0)
++ goto out;
++
++ pdev = platform_device_register_simple("mtx1-leds", -1, NULL, 0);
++ if (IS_ERR(pdev)) {
++ ret = PTR_ERR(pdev);
++ platform_driver_unregister(&mtx1_leds_driver);
++ goto out;
++ }
++
++out:
++ return ret;
++
++}
++
++static void __exit mtx1_leds_exit(void)
++{
++ platform_device_unregister(pdev);
++ platform_driver_unregister(&mtx1_leds_driver);
++}
++
++module_init(mtx1_leds_init);
++module_exit(mtx1_leds_exit);
++
++MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
++MODULE_DESCRIPTION("MTX-1 LED driver");
++MODULE_LICENSE("GPL");