p720t-leds.c 1.5 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768
  1. /*
  2. * linux/arch/arm/mach-clps711x/leds.c
  3. *
  4. * Integrator LED control routines
  5. *
  6. * Copyright (C) 2000 Deep Blue Solutions Ltd
  7. *
  8. * This program is free software; you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation; either version 2 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  21. */
  22. #include <linux/kernel.h>
  23. #include <linux/init.h>
  24. #include <linux/io.h>
  25. #include <mach/hardware.h>
  26. #include <asm/leds.h>
  27. #include <asm/system.h>
  28. #include <asm/mach-types.h>
  29. #include <asm/hardware/clps7111.h>
  30. #include <asm/hardware/ep7212.h>
  31. static void p720t_leds_event(led_event_t ledevt)
  32. {
  33. unsigned long flags;
  34. u32 pddr;
  35. local_irq_save(flags);
  36. switch(ledevt) {
  37. case led_idle_start:
  38. break;
  39. case led_idle_end:
  40. break;
  41. case led_timer:
  42. pddr = clps_readb(PDDR);
  43. clps_writeb(pddr ^ 1, PDDR);
  44. break;
  45. default:
  46. break;
  47. }
  48. local_irq_restore(flags);
  49. }
  50. static int __init leds_init(void)
  51. {
  52. if (machine_is_p720t())
  53. leds_event = p720t_leds_event;
  54. return 0;
  55. }
  56. arch_initcall(leds_init);