board/atmel/at91sam9rlek/led.c

   1 /*
   2  * (C) Copyright 2007-2008
   3  * Stelian Pop <stelian.pop@leadtechdesign.com>
   4  * Lead Tech Design <www.leadtechdesign.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 #include <common.h>
  26 #include <asm/arch/at91sam9rl.h>
  27 #include <asm/arch/at91_pmc.h>
  28 #include <asm/arch/gpio.h>
  29 #include <asm/arch/io.h>
  30
  31 #define RED_LED         AT91_PIN_PD14   /* this is the power led */
  32 #define GREEN_LED       AT91_PIN_PD15   /* this is the user1 led */
  33 #define YELLOW_LED      AT91_PIN_PD16   /* this is the user2 led */
  34
  35 void red_LED_on(void)
  36 {
  37         at91_set_gpio_value(RED_LED, 1);
  38 }
  39
  40 void red_LED_off(void)
  41 {
  42         at91_set_gpio_value(RED_LED, 0);
  43 }
  44
  45 void green_LED_on(void)
  46 {
  47         at91_set_gpio_value(GREEN_LED, 0);
  48 }
  49
  50 void green_LED_off(void)
  51 {
  52         at91_set_gpio_value(GREEN_LED, 1);
  53 }
  54
  55 void yellow_LED_on(void)
  56 {
  57         at91_set_gpio_value(YELLOW_LED, 0);
  58 }
  59
  60 void yellow_LED_off(void)
  61 {
  62         at91_set_gpio_value(YELLOW_LED, 1);
  63 }
  64
  65 void coloured_LED_init(void)
  66 {
  67         /* Enable clock */
  68         at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9RL_ID_PIOD);
  69
  70         at91_set_gpio_output(RED_LED, 1);
  71         at91_set_gpio_output(GREEN_LED, 1);
  72         at91_set_gpio_output(YELLOW_LED, 1);
  73
  74         at91_set_gpio_value(RED_LED, 0);
  75         at91_set_gpio_value(GREEN_LED, 1);
  76         at91_set_gpio_value(YELLOW_LED, 1);
  77 }