target/linux/at91-2.6/patches-2.6.21/002-led-driver.patch

   1 diff -urN linux-2.6.21.1.orig/arch/arm/mach-at91/board-vlink.c linux-2.6.21.1/arch/arm/mach-at91/board-vlink.c
   2 --- linux-2.6.21.1.orig/arch/arm/mach-at91/board-vlink.c        2007-05-28 13:33:41.000000000 +0200
   3 +++ linux-2.6.21.1/arch/arm/mach-at91/board-vlink.c     2007-05-28 14:43:28.000000000 +0200
   4 @@ -61,7 +61,7 @@
   5         at91rm9200_initialize(18432000, AT91RM9200_PQFP);
   6
   7         /* Setup the LEDs */
   8 -//     at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
   9 +       at91_init_leds(AT91_PIN_PC14, AT91_PIN_PC15);
  10
  11         /* Setup the serial ports and console */
  12         at91_init_serial(&vlink_uart_config);
  13 @@ -81,10 +81,12 @@
  14         .ports          = 1,
  15  };
  16
  17 +/*
  18  static struct at91_udc_data __initdata vlink_udc_data = {
  19         .vbus_pin       = AT91_PIN_PD4,
  20         .pullup_pin     = AT91_PIN_PD5,
  21  };
  22 +*/
  23
  24  static struct at91_mmc_data __initdata vlink_mmc_data = {
  25  //     .det_pin        = AT91_PIN_PB27,
  26 @@ -108,18 +110,19 @@
  27  #endif
  28  };
  29
  30 -static struct at91_gpio_led vlink_leds[] = {
  31 +/*static struct at91_gpio_led vlink_leds[] = {
  32         {
  33                 .name           = "led0",
  34 -               .gpio           = AT91_PIN_PB1,
  35 +               .gpio           = AT91_PIN_PC14,
  36                 .trigger        = "heartbeat",
  37         },
  38         {
  39                 .name           = "led1",
  40 -               .gpio           = AT91_PIN_PB2,
  41 +               .gpio           = AT91_PIN_PC15,
  42                 .trigger        = "timer",
  43         }
  44  };
  45 +*/
  46
  47  static void __init vlink_board_init(void)
  48  {
  49 @@ -130,8 +133,8 @@
  50         /* USB Host */
  51         at91_add_device_usbh(&vlink_usbh_data);
  52         /* USB Device */
  53 -       at91_add_device_udc(&vlink_udc_data);
  54 -       at91_set_multi_drive(vlink_udc_data.pullup_pin, 1);     /* pullup_pin is connected to reset */
  55 +//     at91_add_device_udc(&vlink_udc_data);
  56 +//     at91_set_multi_drive(vlink_udc_data.pullup_pin, 1);     /* pullup_pin is connected to reset */
  57         /* I2C */
  58         at91_add_device_i2c();
  59         /* SPI */
  60 @@ -145,7 +148,7 @@
  61         at91_add_device_mmc(0, &vlink_mmc_data);
  62  #endif
  63         /* LEDs */
  64 -       at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds));
  65 +//     at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds));
  66  }
  67
  68  MACHINE_START(VLINK, "FDL VersaLink")
  69 diff -urN linux-2.6.21.1.orig/arch/arm/mach-at91/Makefile linux-2.6.21.1/arch/arm/mach-at91/Makefile
  70 --- linux-2.6.21.1.orig/arch/arm/mach-at91/Makefile     2007-05-28 13:13:15.000000000 +0200
  71 +++ linux-2.6.21.1/arch/arm/mach-at91/Makefile  2007-05-28 14:19:06.000000000 +0200
  72 @@ -52,7 +52,7 @@
  73  led-$(CONFIG_MACH_CSB637)      += leds.o
  74  led-$(CONFIG_MACH_KB9200)      += leds.o
  75  led-$(CONFIG_MACH_KAFA)                += leds.o
  76 -led-$(CONFIG_MACH_VLINK)       += leds.o
  77 +led-$(CONFIG_MACH_VLINK)       += vlink_leds.o
  78  obj-$(CONFIG_LEDS) += $(led-y)
  79
  80  # VGA support
  81 diff -urN linux-2.6.21.1.orig/arch/arm/mach-at91/vlink_leds.c linux-2.6.21.1/arch/arm/mach-at91/vlink_leds.c
  82 --- linux-2.6.21.1.orig/arch/arm/mach-at91/vlink_leds.c 1970-01-01 01:00:00.000000000 +0100
  83 +++ linux-2.6.21.1/arch/arm/mach-at91/vlink_leds.c      2007-05-28 14:41:03.000000000 +0200
  84 @@ -0,0 +1,105 @@
  85 +/*
  86 + * LED driver for Atmel AT91-based boards.
  87 + *
  88 + *  Copyright (C) SAN People (Pty) Ltd
  89 + *     Modified for FDL VersaLink Copyright (C) Guthrie Consulting
  90 + *
  91 + * This program is free software; you can redistribute it and/or
  92 + * modify it under the terms of the GNU General Public License
  93 + * as published by the Free Software Foundation; either version
  94 + * 2 of the License, or (at your option) any later version.
  95 +*/
  96 +
  97 +#include <linux/kernel.h>
  98 +#include <linux/module.h>
  99 +#include <linux/init.h>
 100 +
 101 +#include <asm/mach-types.h>
 102 +#include <asm/leds.h>
 103 +#include <asm/arch/board.h>
 104 +#include <asm/arch/gpio.h>
 105 +
 106 +
 107 +static inline void at91_led_on(unsigned int led)
 108 +{
 109 +       at91_set_gpio_value(led, 0);
 110 +}
 111 +
 112 +static inline void at91_led_off(unsigned int led)
 113 +{
 114 +       at91_set_gpio_value(led, 1);
 115 +}
 116 +
 117 +static inline void at91_led_toggle(unsigned int led)
 118 +{
 119 +       unsigned long is_off = at91_get_gpio_value(led);
 120 +       if (is_off) {
 121 +               at91_led_on(led);
 122 +               at91_led_off(at91_leds_cpu);
 123 +               }
 124 +       else {
 125 +               at91_led_on(at91_leds_cpu);
 126 +               at91_led_off(led);
 127 +               }
 128 +}
 129 +
 130 +
 131 +/*
 132 + * Handle LED events.
 133 + */
 134 +
 135 +/*
 136 + * VersaLink has a single bi-coloured LED which changes colour when the
 137 + * polarity is reversed
 138 + */
 139 +static void at91_leds_event(led_event_t evt)
 140 +{
 141 +       unsigned long flags;
 142 +
 143 +       local_irq_save(flags);
 144 +
 145 +       switch(evt) {
 146 +       case led_start:         /* System startup */
 147 +               at91_led_toggle(at91_leds_timer);
 148 +               break;
 149 +
 150 +       case led_stop:          /* System stop / suspend */
 151 +               at91_led_toggle(at91_leds_timer);
 152 +               break;
 153 +
 154 +#ifdef CONFIG_LEDS_TIMER
 155 +       case led_timer:         /* Every 50 timer ticks */
 156 +               at91_led_toggle(at91_leds_timer);
 157 +               break;
 158 +#endif
 159 +
 160 +#ifdef CONFIG_LEDS_CPU
 161 +       case led_idle_start:    /* Entering idle state */
 162 +               at91_led_toggle(at91_leds_timer);
 163 +               break;
 164 +
 165 +       case led_idle_end:      /* Exit idle state */
 166 +               at91_led_toggle(at91_leds_timer);
 167 +               break;
 168 +#endif
 169 +
 170 +       default:
 171 +               break;
 172 +       }
 173 +
 174 +       local_irq_restore(flags);
 175 +}
 176 +
 177 +
 178 +static int __init leds_init(void)
 179 +{
 180 +       if (!at91_leds_timer || !at91_leds_cpu)
 181 +               return -ENODEV;
 182 +
 183 +       leds_event = at91_leds_event;
 184 +
 185 +       leds_event(led_start);
 186 +       return 0;
 187 +}
 188 +
 189 +__initcall(leds_init);