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