1/* 2 * Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com> 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8#ifndef __KEYPAD_OMAP_H 9#define __KEYPAD_OMAP_H 10 11#ifndef CONFIG_ARCH_OMAP1 12#warning Please update the board to use matrix-keypad driver 13#define omap_readw(reg) 0 14#define omap_writew(val, reg) do {} while (0) 15#endif 16#include <linux/input/matrix_keypad.h> 17 18struct omap_kp_platform_data { 19 int rows; 20 int cols; 21 const struct matrix_keymap_data *keymap_data; 22 bool rep; 23 unsigned long delay; 24 bool dbounce; 25 /* specific to OMAP242x*/ 26 unsigned int *row_gpios; 27 unsigned int *col_gpios; 28}; 29 30/* Group (0..3) -- when multiple keys are pressed, only the 31 * keys pressed in the same group are considered as pressed. This is 32 * in order to workaround certain crappy HW designs that produce ghost 33 * keypresses. Two free bits, not used by neither row/col nor keynum, 34 * must be available for use as group bits. The below GROUP_SHIFT 35 * macro definition is based on some prior knowledge of the 36 * matrix_keypad defined KEY() macro internals. 37 */ 38#define GROUP_SHIFT 14 39#define GROUP_0 (0 << GROUP_SHIFT) 40#define GROUP_1 (1 << GROUP_SHIFT) 41#define GROUP_2 (2 << GROUP_SHIFT) 42#define GROUP_3 (3 << GROUP_SHIFT) 43#define GROUP_MASK GROUP_3 44#if KEY_MAX & GROUP_MASK 45#error Group bits in conflict with keynum bits 46#endif 47 48 49#endif 50 51