gpio.h 1.7 KB

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  1. /*
  2. * arch/arm/mach-ks8695/include/mach/gpio.h
  3. *
  4. * Copyright (C) 2006 Andrew Victor
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License version 2 as
  8. * published by the Free Software Foundation.
  9. */
  10. #ifndef __ASM_ARCH_GPIO_H_
  11. #define __ASM_ARCH_GPIO_H_
  12. #include <linux/kernel.h>
  13. #define KS8695_GPIO_0 0
  14. #define KS8695_GPIO_1 1
  15. #define KS8695_GPIO_2 2
  16. #define KS8695_GPIO_3 3
  17. #define KS8695_GPIO_4 4
  18. #define KS8695_GPIO_5 5
  19. #define KS8695_GPIO_6 6
  20. #define KS8695_GPIO_7 7
  21. #define KS8695_GPIO_8 8
  22. #define KS8695_GPIO_9 9
  23. #define KS8695_GPIO_10 10
  24. #define KS8695_GPIO_11 11
  25. #define KS8695_GPIO_12 12
  26. #define KS8695_GPIO_13 13
  27. #define KS8695_GPIO_14 14
  28. #define KS8695_GPIO_15 15
  29. /*
  30. * Configure GPIO pin as external interrupt source.
  31. */
  32. int __init_or_module ks8695_gpio_interrupt(unsigned int pin, unsigned int type);
  33. /*
  34. * Configure the GPIO line as an input.
  35. */
  36. int __init_or_module gpio_direction_input(unsigned int pin);
  37. /*
  38. * Configure the GPIO line as an output, with default state.
  39. */
  40. int __init_or_module gpio_direction_output(unsigned int pin, unsigned int state);
  41. /*
  42. * Set the state of an output GPIO line.
  43. */
  44. void gpio_set_value(unsigned int pin, unsigned int state);
  45. /*
  46. * Read the state of a GPIO line.
  47. */
  48. int gpio_get_value(unsigned int pin);
  49. /*
  50. * Map GPIO line to IRQ number.
  51. */
  52. int gpio_to_irq(unsigned int pin);
  53. /*
  54. * Map IRQ number to GPIO line.
  55. */
  56. int irq_to_gpio(unsigned int irq);
  57. #include <asm-generic/gpio.h>
  58. static inline int gpio_request(unsigned int pin, const char *label)
  59. {
  60. return 0;
  61. }
  62. static inline void gpio_free(unsigned int pin)
  63. {
  64. might_sleep();
  65. }
  66. #endif