arch/arm/mach-tegra/include/mach/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 #ifdef CONFIG_ARCH_TEGRA_2x_SOC
  28 #define KBC_MAX_GPIO    24
  29 #define KBC_MAX_KPENT   8
  30 #else
  31 #define KBC_MAX_GPIO    20
  32 #define KBC_MAX_KPENT   7
  33 #endif
  34
  35 #define KBC_MAX_ROW     16
  36 #define KBC_MAX_COL     8
  37 #define KBC_MAX_KEY     (KBC_MAX_ROW * KBC_MAX_COL)
  38
  39 struct tegra_kbc_pin_cfg {
  40         bool is_row;
  41         unsigned char num;
  42 };
  43
  44 struct tegra_kbc_wake_key {
  45         u8 row:4;
  46         u8 col:4;
  47 };
  48
  49 struct tegra_kbc_platform_data {
  50         unsigned int debounce_cnt;
  51         unsigned int repeat_cnt;
  52
  53         struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO];
  54         const struct matrix_keymap_data *keymap_data;
  55
  56         bool wakeup;
  57         bool use_fn_map;
  58         bool use_ghost_filter;
  59 };
  60 #endif