include/asm-arm/arch-omap/keypad.h

   1 /*
   2  *  linux/include/asm-arm/arch-omap/keypad.h
   3  *
   4  *  Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef ASMARM_ARCH_KEYPAD_H
  11 #define ASMARM_ARCH_KEYPAD_H
  12
  13 struct omap_kp_platform_data {
  14         int rows;
  15         int cols;
  16         int *keymap;
  17         unsigned int rep:1;
  18         /* specific to OMAP242x*/
  19         unsigned int *row_gpios;
  20         unsigned int *col_gpios;
  21 };
  22
  23 /* Group (0..3) -- when multiple keys are pressed, only the
  24  * keys pressed in the same group are considered as pressed. This is
  25  * in order to workaround certain crappy HW designs that produce ghost
  26  * keypresses. */
  27 #define GROUP_0         (0 << 16)
  28 #define GROUP_1         (1 << 16)
  29 #define GROUP_2         (2 << 16)
  30 #define GROUP_3         (3 << 16)
  31 #define GROUP_MASK      GROUP_3
  32
  33 #define KEY(col, row, val) (((col) << 28) | ((row) << 24) | (val))
  34
  35 #endif
  36