include/asm-arm/arch-pxa/pxa27x_keypad.h

   1 #ifndef __ASM_ARCH_PXA27x_KEYPAD_H
   2 #define __ASM_ARCH_PXA27x_KEYPAD_H
   3
   4 #include <linux/input.h>
   5
   6 #define MAX_MATRIX_KEY_ROWS     (8)
   7 #define MAX_MATRIX_KEY_COLS     (8)
   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
  28         /* code map for the matrix keys */
  29         unsigned int    matrix_key_rows;
  30         unsigned int    matrix_key_cols;
  31         unsigned int    *matrix_key_map;
  32         int             matrix_key_map_size;
  33
  34         /* direct keys */
  35         int             direct_key_num;
  36         unsigned int    direct_key_map[8];
  37
  38         /* rotary encoders 0 */
  39         int             enable_rotary0;
  40         int             rotary0_rel_code;
  41         int             rotary0_up_key;
  42         int             rotary0_down_key;
  43
  44         /* rotary encoders 1 */
  45         int             enable_rotary1;
  46         int             rotary1_rel_code;
  47         int             rotary1_up_key;
  48         int             rotary1_down_key;
  49
  50         /* key debounce interval */
  51         unsigned int    debounce_interval;
  52 };
  53
  54 #define KEY(row, col, val)      (((row) << 28) | ((col) << 24) | (val))
  55
  56 extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info);
  57
  58 #endif /* __ASM_ARCH_PXA27x_KEYPAD_H */