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

   1 Index: linux-2.6.21.7/arch/arm/mach-at91/board-vlink.c
   2 ===================================================================
   3 --- linux-2.6.21.7.orig/arch/arm/mach-at91/board-vlink.c
   4 +++ linux-2.6.21.7/arch/arm/mach-at91/board-vlink.c
   5 @@ -61,7 +61,7 @@ static void __init vlink_map_io(void)
   6         at91rm9200_initialize(18432000, AT91RM9200_PQFP);
   7
   8         /* Setup the LEDs */
   9 -//     at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
  10 +       at91_init_leds(AT91_PIN_PC14, AT91_PIN_PC15);
  11
  12         /* Setup the serial ports and console */
  13         at91_init_serial(&vlink_uart_config);
  14 @@ -81,10 +81,12 @@ static struct at91_usbh_data __initdata
  15         .ports          = 1,
  16  };
  17
  18 +/*
  19  static struct at91_udc_data __initdata vlink_udc_data = {
  20         .vbus_pin       = AT91_PIN_PD4,
  21         .pullup_pin     = AT91_PIN_PD5,
  22  };
  23 +*/
  24
  25  static struct at91_mmc_data __initdata vlink_mmc_data = {
  26  //     .det_pin        = AT91_PIN_PB27,
  27 @@ -108,18 +110,19 @@ static struct spi_board_info vlink_spi_d
  28  #endif
  29  };
  30
  31 -static struct at91_gpio_led vlink_leds[] = {
  32 +/*static struct at91_gpio_led vlink_leds[] = {
  33         {
  34                 .name           = "led0",
  35 -               .gpio           = AT91_PIN_PB1,
  36 +               .gpio           = AT91_PIN_PC14,
  37                 .trigger        = "heartbeat",
  38         },
  39         {
  40                 .name           = "led1",
  41 -               .gpio           = AT91_PIN_PB2,
  42 +               .gpio           = AT91_PIN_PC15,
  43                 .trigger        = "timer",
  44         }
  45  };
  46 +*/
  47
  48  static void __init vlink_board_init(void)
  49  {
  50 @@ -130,8 +133,8 @@ static void __init vlink_board_init(void
  51         /* USB Host */
  52         at91_add_device_usbh(&vlink_usbh_data);
  53         /* USB Device */
  54 -       at91_add_device_udc(&vlink_udc_data);
  55 -       at91_set_multi_drive(vlink_udc_data.pullup_pin, 1);     /* pullup_pin is connected to reset */
  56 +//     at91_add_device_udc(&vlink_udc_data);
  57 +//     at91_set_multi_drive(vlink_udc_data.pullup_pin, 1);     /* pullup_pin is connected to reset */
  58         /* I2C */
  59         at91_add_device_i2c();
  60         /* SPI */
  61 @@ -145,7 +148,7 @@ static void __init vlink_board_init(void
  62         at91_add_device_mmc(0, &vlink_mmc_data);
  63  #endif
  64         /* LEDs */
  65 -       at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds));
  66 +//     at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds));
  67  }
  68
  69  MACHINE_START(VLINK, "FDL VersaLink")
  70 Index: linux-2.6.21.7/arch/arm/mach-at91/Makefile
  71 ===================================================================
  72 --- linux-2.6.21.7.orig/arch/arm/mach-at91/Makefile
  73 +++ linux-2.6.21.7/arch/arm/mach-at91/Makefile
  74 @@ -52,7 +52,7 @@ led-$(CONFIG_MACH_CSB337)     += leds.o
  75  led-$(CONFIG_MACH_CSB637)      += leds.o
  76  led-$(CONFIG_MACH_KB9200)      += leds.o
  77  led-$(CONFIG_MACH_KAFA)                += leds.o
  78 -led-$(CONFIG_MACH_VLINK)       += leds.o
  79 +led-$(CONFIG_MACH_VLINK)       += vlink_leds.o
  80  obj-$(CONFIG_LEDS) += $(led-y)
  81
  82  # VGA support
  83 Index: linux-2.6.21.7/arch/arm/mach-at91/vlink_leds.c
  84 ===================================================================
  85 --- /dev/null
  86 +++ linux-2.6.21.7/arch/arm/mach-at91/vlink_leds.c
  87 @@ -0,0 +1,105 @@
  88 +/*
  89 + * LED driver for Atmel AT91-based boards.
  90 + *
  91 + *  Copyright (C) SAN People (Pty) Ltd
  92 + *     Modified for FDL VersaLink Copyright (C) Guthrie Consulting
  93 + *
  94 + * This program is free software; you can redistribute it and/or
  95 + * modify it under the terms of the GNU General Public License
  96 + * as published by the Free Software Foundation; either version
  97 + * 2 of the License, or (at your option) any later version.
  98 +*/
  99 +
 100 +#include <linux/kernel.h>
 101 +#include <linux/module.h>
 102 +#include <linux/init.h>
 103 +
 104 +#include <asm/mach-types.h>
 105 +#include <asm/leds.h>
 106 +#include <asm/arch/board.h>
 107 +#include <asm/arch/gpio.h>
 108 +
 109 +
 110 +static inline void at91_led_on(unsigned int led)
 111 +{
 112 +       at91_set_gpio_value(led, 0);
 113 +}
 114 +
 115 +static inline void at91_led_off(unsigned int led)
 116 +{
 117 +       at91_set_gpio_value(led, 1);
 118 +}
 119 +
 120 +static inline void at91_led_toggle(unsigned int led)
 121 +{
 122 +       unsigned long is_off = at91_get_gpio_value(led);
 123 +       if (is_off) {
 124 +               at91_led_on(led);
 125 +               at91_led_off(at91_leds_cpu);
 126 +               }
 127 +       else {
 128 +               at91_led_on(at91_leds_cpu);
 129 +               at91_led_off(led);
 130 +               }
 131 +}
 132 +
 133 +
 134 +/*
 135 + * Handle LED events.
 136 + */
 137 +
 138 +/*
 139 + * VersaLink has a single bi-coloured LED which changes colour when the
 140 + * polarity is reversed
 141 + */
 142 +static void at91_leds_event(led_event_t evt)
 143 +{
 144 +       unsigned long flags;
 145 +
 146 +       local_irq_save(flags);
 147 +
 148 +       switch(evt) {
 149 +       case led_start:         /* System startup */
 150 +               at91_led_toggle(at91_leds_timer);
 151 +               break;
 152 +
 153 +       case led_stop:          /* System stop / suspend */
 154 +               at91_led_toggle(at91_leds_timer);
 155 +               break;
 156 +
 157 +#ifdef CONFIG_LEDS_TIMER
 158 +       case led_timer:         /* Every 50 timer ticks */
 159 +               at91_led_toggle(at91_leds_timer);
 160 +               break;
 161 +#endif
 162 +
 163 +#ifdef CONFIG_LEDS_CPU
 164 +       case led_idle_start:    /* Entering idle state */
 165 +               at91_led_toggle(at91_leds_timer);
 166 +               break;
 167 +
 168 +       case led_idle_end:      /* Exit idle state */
 169 +               at91_led_toggle(at91_leds_timer);
 170 +               break;
 171 +#endif
 172 +
 173 +       default:
 174 +               break;
 175 +       }
 176 +
 177 +       local_irq_restore(flags);
 178 +}
 179 +
 180 +
 181 +static int __init leds_init(void)
 182 +{
 183 +       if (!at91_leds_timer || !at91_leds_cpu)
 184 +               return -ENODEV;
 185 +
 186 +       leds_event = at91_leds_event;
 187 +
 188 +       leds_event(led_start);
 189 +       return 0;
 190 +}
 191 +
 192 +__initcall(leds_init);