arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h

   1 /*
   2  * arch/arm/mach-ep93xx/include/mach/ep93xx_keypad.h
   3  */
   4
   5 #ifndef __ASM_ARCH_EP93XX_KEYPAD_H
   6 #define __ASM_ARCH_EP93XX_KEYPAD_H
   7
   8 #define MAX_MATRIX_KEY_ROWS             (8)
   9 #define MAX_MATRIX_KEY_COLS             (8)
  10
  11 /* flags for the ep93xx_keypad driver */
  12 #define EP93XX_KEYPAD_DISABLE_3_KEY     (1<<0)  /* disable 3-key reset */
  13 #define EP93XX_KEYPAD_DIAG_MODE         (1<<1)  /* diagnostic mode */
  14 #define EP93XX_KEYPAD_BACK_DRIVE        (1<<2)  /* back driving mode */
  15 #define EP93XX_KEYPAD_TEST_MODE         (1<<3)  /* scan only column 0 */
  16 #define EP93XX_KEYPAD_KDIV              (1<<4)  /* 1/4 clock or 1/16 clock */
  17 #define EP93XX_KEYPAD_AUTOREPEAT        (1<<5)  /* enable key autorepeat */
  18
  19 /**
  20  * struct ep93xx_keypad_platform_data - platform specific device structure
  21  * @matrix_key_rows:            number of rows in the keypad matrix
  22  * @matrix_key_cols:            number of columns in the keypad matrix
  23  * @matrix_key_map:             array of keycodes defining the keypad matrix
  24  * @matrix_key_map_size:        ARRAY_SIZE(matrix_key_map)
  25  * @debounce:                   debounce start count; terminal count is 0xff
  26  * @prescale:                   row/column counter pre-scaler load value
  27  * @flags:                      see above
  28  */
  29 struct ep93xx_keypad_platform_data {
  30         unsigned int    matrix_key_rows;
  31         unsigned int    matrix_key_cols;
  32         unsigned int    *matrix_key_map;
  33         int             matrix_key_map_size;
  34         unsigned int    debounce;
  35         unsigned int    prescale;
  36         unsigned int    flags;
  37 };
  38
  39 /* macro for creating the matrix_key_map table */
  40 #define KEY(row, col, val)      (((row) << 28) | ((col) << 24) | (val))
  41
  42 #endif  /* __ASM_ARCH_EP93XX_KEYPAD_H */