pxa27x_keypad.h 1.7 KB

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  1. #ifndef __ASM_ARCH_PXA27x_KEYPAD_H
  2. #define __ASM_ARCH_PXA27x_KEYPAD_H
  3. #include <linux/input.h>
  4. #include <linux/input/matrix_keypad.h>
  5. #define MAX_MATRIX_KEY_ROWS (8)
  6. #define MAX_MATRIX_KEY_COLS (8)
  7. #define MATRIX_ROW_SHIFT (3)
  8. #define MAX_DIRECT_KEY_NUM (8)
  9. /* pxa3xx keypad platform specific parameters
  10. *
  11. * NOTE:
  12. * 1. direct_key_num indicates the number of keys in the direct keypad
  13. * _plus_ the number of rotary-encoder sensor inputs, this can be
  14. * left as 0 if only rotary encoders are enabled, the driver will
  15. * automatically calculate this
  16. *
  17. * 2. direct_key_map is the key code map for the direct keys, if rotary
  18. * encoder(s) are enabled, direct key 0/1(2/3) will be ignored
  19. *
  20. * 3. rotary can be either interpreted as a relative input event (e.g.
  21. * REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT)
  22. *
  23. * 4. matrix key and direct key will use the same debounce_interval by
  24. * default, which should be sufficient in most cases
  25. */
  26. struct pxa27x_keypad_platform_data {
  27. /* code map for the matrix keys */
  28. unsigned int matrix_key_rows;
  29. unsigned int matrix_key_cols;
  30. unsigned int *matrix_key_map;
  31. int matrix_key_map_size;
  32. /* direct keys */
  33. int direct_key_num;
  34. unsigned int direct_key_map[MAX_DIRECT_KEY_NUM];
  35. /* rotary encoders 0 */
  36. int enable_rotary0;
  37. int rotary0_rel_code;
  38. int rotary0_up_key;
  39. int rotary0_down_key;
  40. /* rotary encoders 1 */
  41. int enable_rotary1;
  42. int rotary1_rel_code;
  43. int rotary1_up_key;
  44. int rotary1_down_key;
  45. /* key debounce interval */
  46. unsigned int debounce_interval;
  47. };
  48. extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info);
  49. #endif /* __ASM_ARCH_PXA27x_KEYPAD_H */