include/linux/input/tegra_kbc.h

   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