led.c 1.6 KB

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  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. #include <common.h>
  25. #include <asm/arch/at91sam9260.h>
  26. #include <asm/arch/at91_pmc.h>
  27. #include <asm/arch/gpio.h>
  28. #include <asm/arch/io.h>
  29. #define RED_LED AT91_PIN_PA9 /* this is the power led */
  30. #define GREEN_LED AT91_PIN_PA6 /* this is the user led */
  31. void red_LED_on(void)
  32. {
  33. at91_set_gpio_value(RED_LED, 1);
  34. }
  35. void red_LED_off(void)
  36. {
  37. at91_set_gpio_value(RED_LED, 0);
  38. }
  39. void green_LED_on(void)
  40. {
  41. at91_set_gpio_value(GREEN_LED, 0);
  42. }
  43. void green_LED_off(void)
  44. {
  45. at91_set_gpio_value(GREEN_LED, 1);
  46. }
  47. void coloured_LED_init(void)
  48. {
  49. /* Enable clock */
  50. at91_sys_write(AT91_PMC_PCER, 1 << AT91SAM9260_ID_PIOA);
  51. at91_set_gpio_output(RED_LED, 1);
  52. at91_set_gpio_output(GREEN_LED, 1);
  53. at91_set_gpio_value(RED_LED, 0);
  54. at91_set_gpio_value(GREEN_LED, 1);
  55. }