target/linux/au1000-2.6/patches/011-mtx1_leds.patch

   1 diff -urN linux-2.6.19.2/drivers/leds/Kconfig linux-2.6.19.2.new/drivers/leds/Kconfig
   2 --- linux-2.6.19.2/drivers/leds/Kconfig 2007-01-10 20:10:37.000000000 +0100
   3 +++ linux-2.6.19.2.new/drivers/leds/Kconfig     2007-03-02 13:50:28.000000000 +0100
   4 @@ -76,6 +76,13 @@
   5           This option enables support for the Soekris net4801 and net4826 error
   6           LED.
   7
   8 +config LEDS_MTX1
   9 +       tristate "LED Support for MTX-1 boards"
  10 +       depends on LEDS_CLASS && MIPS_MTX1
  11 +       help
  12 +         This option enables support for the MTX-1 power and status LED.
  13 +
  14 +
  15  comment "LED Triggers"
  16
  17  config LEDS_TRIGGERS
  18 diff -urN linux-2.6.19.2/drivers/leds/Makefile linux-2.6.19.2.new/drivers/leds/Makefile
  19 --- linux-2.6.19.2/drivers/leds/Makefile        2007-01-10 20:10:37.000000000 +0100
  20 +++ linux-2.6.19.2.new/drivers/leds/Makefile    2007-03-02 13:49:35.000000000 +0100
  21 @@ -13,6 +13,7 @@
  22  obj-$(CONFIG_LEDS_S3C24XX)             += leds-s3c24xx.o
  23  obj-$(CONFIG_LEDS_AMS_DELTA)           += leds-ams-delta.o
  24  obj-$(CONFIG_LEDS_NET48XX)             += leds-net48xx.o
  25 +obj-$(CONFIG_LEDS_MTX1)                        += leds-mtx1.o
  26
  27  # LED Triggers
  28  obj-$(CONFIG_LEDS_TRIGGER_TIMER)       += ledtrig-timer.o
  29 diff -urN linux-2.6.19.2/drivers/leds/leds-mtx1.c linux-2.6.19.2.new/drivers/leds/leds-mtx1.c
  30 --- linux-2.6.19.2/drivers/leds/leds-mtx1.c     1970-01-01 01:00:00.000000000 +0100
  31 +++ linux-2.6.19.2.new/drivers/leds/leds-mtx1.c 2007-03-02 13:49:08.000000000 +0100
  32 @@ -0,0 +1,116 @@
  33 +/*
  34 + * LED driver for MTX-1 boards
  35 + *
  36 + * Copyright 2007 Florian Fainelli <florian@openwrt.org>
  37 + *
  38 + * This program is free software; you can redistribute it and/or modify
  39 + * it under the terms of the GNU General Public License version 2 as
  40 + * published by the Free Software Foundation.
  41 + *
  42 + */
  43 +
  44 +#include <linux/kernel.h>
  45 +#include <linux/init.h>
  46 +#include <linux/platform_device.h>
  47 +#include <linux/leds.h>
  48 +#include <linux/err.h>
  49 +#include <asm/mach-au1x00/au1000.h>
  50 +
  51 +static struct platform_device *pdev;
  52 +
  53 +static void mtx1_green_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
  54 +{
  55 +       /* The power LED cannot be controlled the same way as for the Status LED */
  56 +       if (brightness) {
  57 +               au_writel( 0x18000800, GPIO2_OUTPUT );
  58 +       } else {
  59 +               au_writel( 0x18000000, GPIO2_OUTPUT);
  60 +       }
  61 +}
  62 +
  63 +static void mtx1_red_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
  64 +{
  65 +       /* We store GPIO address (originally address - 200) in the "flags" field*/
  66 +       unsigned long pinmask = 1 << led_cdev->flags;
  67 +       if (brightness) {
  68 +               au_writel((pinmask << 16) | pinmask, GPIO2_OUTPUT);
  69 +       } else {
  70 +               au_writel((pinmask << 16) | 0, GPIO2_OUTPUT);
  71 +       }
  72 +}
  73 +
  74 +static struct led_classdev mtx1_green_led = {
  75 +       .name = "mtx1:green",
  76 +       .brightness_set = mtx1_green_led_set,
  77 +};
  78 +
  79 +static struct led_classdev mtx1_red_led = {
  80 +       .name = "mtx1:red",
  81 +       .flags = 12,
  82 +       .brightness_set = mtx1_red_led_set,
  83 +       .default_trigger = "ide-disk",
  84 +};
  85 +
  86 +static int mtx1_leds_probe(struct platform_device *pdev)
  87 +{
  88 +       int ret;
  89 +
  90 +       ret = led_classdev_register(&pdev->dev, &mtx1_green_led);
  91 +       if (ret < 0)
  92 +               goto out;
  93 +
  94 +       ret = led_classdev_register(&pdev->dev, &mtx1_red_led);
  95 +       if (ret < 0)
  96 +               led_classdev_unregister(&mtx1_green_led);
  97 +
  98 +out:
  99 +       return ret;
 100 +}
 101 +
 102 +static int mtx1_leds_remove(struct platform_device *pdev)
 103 +{
 104 +       led_classdev_unregister(&mtx1_green_led);
 105 +       led_classdev_unregister(&mtx1_red_led);
 106 +       return 0;
 107 +}
 108 +
 109 +static struct platform_driver mtx1_leds_driver = {
 110 +       .probe = mtx1_leds_probe,
 111 +       .remove = mtx1_leds_remove,
 112 +       .driver = {
 113 +               .name = "mtx1-leds",
 114 +       }
 115 +};
 116 +
 117 +static int __init mtx1_leds_init(void)
 118 +{
 119 +       int ret;
 120 +
 121 +        ret = platform_driver_register(&mtx1_leds_driver);
 122 +        if (ret < 0)
 123 +                goto out;
 124 +
 125 +        pdev = platform_device_register_simple("mtx1-leds", -1, NULL, 0);
 126 +        if (IS_ERR(pdev)) {
 127 +                ret = PTR_ERR(pdev);
 128 +                platform_driver_unregister(&mtx1_leds_driver);
 129 +                goto out;
 130 +        }
 131 +
 132 +out:
 133 +        return ret;
 134 +
 135 +}
 136 +
 137 +static void __exit mtx1_leds_exit(void)
 138 +{
 139 +       platform_device_unregister(pdev);
 140 +       platform_driver_unregister(&mtx1_leds_driver);
 141 +}
 142 +
 143 +module_init(mtx1_leds_init);
 144 +module_exit(mtx1_leds_exit);
 145 +
 146 +MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
 147 +MODULE_DESCRIPTION("MTX-1 LED driver");
 148 +MODULE_LICENSE("GPL");