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ep93xx_keypad.h

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

#ifndef __ASM_ARCH_EP93XX_KEYPAD_H
#define __ASM_ARCH_EP93XX_KEYPAD_H

#define MAX_MATRIX_KEY_ROWS         (8)
#define MAX_MATRIX_KEY_COLS         (8)

/* flags for the ep93xx_keypad driver */
#define EP93XX_KEYPAD_DISABLE_3_KEY (1<<0)      /* disable 3-key reset */
#define EP93XX_KEYPAD_DIAG_MODE           (1<<1)      /* diagnostic mode */
#define EP93XX_KEYPAD_BACK_DRIVE    (1<<2)      /* back driving mode */
#define EP93XX_KEYPAD_TEST_MODE           (1<<3)      /* scan only column 0 */
#define EP93XX_KEYPAD_KDIV          (1<<4)      /* 1/4 clock or 1/16 clock */
#define EP93XX_KEYPAD_AUTOREPEAT    (1<<5)      /* enable key autorepeat */

/**
 * struct ep93xx_keypad_platform_data - platform specific device structure
 * @matrix_key_rows:          number of rows in the keypad matrix
 * @matrix_key_cols:          number of columns in the keypad matrix
 * @matrix_key_map:           array of keycodes defining the keypad matrix
 * @matrix_key_map_size:      ARRAY_SIZE(matrix_key_map)
 * @debounce:                 debounce start count; terminal count is 0xff
 * @prescale:                 row/column counter pre-scaler load value
 * @flags:              see above
 */
00029 struct ep93xx_keypad_platform_data {
      unsigned int      matrix_key_rows;
      unsigned int      matrix_key_cols;
      unsigned int      *matrix_key_map;
      int         matrix_key_map_size;
      unsigned int      debounce;
      unsigned int      prescale;
      unsigned int      flags;
};

/* macro for creating the matrix_key_map table */
#define KEY(row, col, val)    (((row) << 28) | ((col) << 24) | (val))

#endif      /* __ASM_ARCH_EP93XX_KEYPAD_H */

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