1 /*
2  * Platform definitions for tegra-kbc keyboard input driver
3  *
4  * Copyright (c) 2010-2011, NVIDIA Corporation.
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 as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
14  * more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with this program; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
19  */
20 
21 #ifndef ASMARM_ARCH_TEGRA_KBC_H
22 #define ASMARM_ARCH_TEGRA_KBC_H
23 
24 #include <linux/types.h>
25 #include <linux/input/matrix_keypad.h>
26 
27 #define KBC_MAX_GPIO	24
28 #define KBC_MAX_KPENT	8
29 
30 #define KBC_MAX_ROW	16
31 #define KBC_MAX_COL	8
32 #define KBC_MAX_KEY	(KBC_MAX_ROW * KBC_MAX_COL)
33 
34 enum tegra_pin_type {
35 	PIN_CFG_IGNORE,
36 	PIN_CFG_COL,
37 	PIN_CFG_ROW,
38 };
39 
40 struct tegra_kbc_pin_cfg {
41 	enum tegra_pin_type type;
42 	unsigned char num;
43 };
44 
45 struct tegra_kbc_wake_key {
46 	u8 row:4;
47 	u8 col:4;
48 };
49 
50 struct tegra_kbc_platform_data {
51 	unsigned int debounce_cnt;
52 	unsigned int repeat_cnt;
53 
54 	struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO];
55 	const struct matrix_keymap_data *keymap_data;
56 
57 	u32 wakeup_key;
58 	bool wakeup;
59 	bool use_fn_map;
60 	bool use_ghost_filter;
61 };
62 #endif
63