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

   1 #ifndef __ASM_ARCH_PXA27x_KEYPAD_H
   2 #define __ASM_ARCH_PXA27x_KEYPAD_H
   3
   4 #include <linux/input.h>
   5 #include <linux/input/matrix_keypad.h>
   6
   7 #define MAX_MATRIX_KEY_ROWS     (8)
   8 #define MAX_MATRIX_KEY_COLS     (8)
   9 #define MATRIX_ROW_SHIFT        (3)
  10 #define MAX_DIRECT_KEY_NUM      (8)
  11
  12 /* pxa3xx keypad platform specific parameters
  13  *
  14  * NOTE:
  15  * 1. direct_key_num indicates the number of keys in the direct keypad
  16  *    _plus_ the number of rotary-encoder sensor inputs,  this can be
  17  *    left as 0 if only rotary encoders are enabled,  the driver will
  18  *    automatically calculate this
  19  *
  20  * 2. direct_key_map is the key code map for the direct keys, if rotary
  21  *    encoder(s) are enabled, direct key 0/1(2/3) will be ignored
  22  *
  23  * 3. rotary can be either interpreted as a relative input event (e.g.
  24  *    REL_WHEEL/REL_HWHEEL) or specific keys (e.g. UP/DOWN/LEFT/RIGHT)
  25  *
  26  * 4. matrix key and direct key will use the same debounce_interval by
  27  *    default, which should be sufficient in most cases
  28  */
  29 struct pxa27x_keypad_platform_data {
  30
  31         /* code map for the matrix keys */
  32         unsigned int    matrix_key_rows;
  33         unsigned int    matrix_key_cols;
  34         unsigned int    *matrix_key_map;
  35         int             matrix_key_map_size;
  36
  37         /* direct keys */
  38         int             direct_key_num;
  39         unsigned int    direct_key_map[MAX_DIRECT_KEY_NUM];
  40
  41         /* rotary encoders 0 */
  42         int             enable_rotary0;
  43         int             rotary0_rel_code;
  44         int             rotary0_up_key;
  45         int             rotary0_down_key;
  46
  47         /* rotary encoders 1 */
  48         int             enable_rotary1;
  49         int             rotary1_rel_code;
  50         int             rotary1_up_key;
  51         int             rotary1_down_key;
  52
  53         /* key debounce interval */
  54         unsigned int    debounce_interval;
  55 };
  56
  57 extern void pxa_set_keypad_info(struct pxa27x_keypad_platform_data *info);
  58
  59 #endif /* __ASM_ARCH_PXA27x_KEYPAD_H */