Commit 11f5b30d authored by Rakesh Iyer's avatar Rakesh Iyer Committed by Dmitry Torokhov

Input: tegra-kbc - add tegra keyboard driver

This patch adds support for the internal matrix keyboard controller for
Nvidia Tegra platforms.
Signed-off-by: default avatarRakesh Iyer <riyer@nvidia.com>
Reviewed-by: default avatarTrilok Soni <tsoni@codeaurora.org>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent 94a8cab8
/*
* Platform definitions for tegra-kbc keyboard input driver
*
* Copyright (c) 2010-2011, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef ASMARM_ARCH_TEGRA_KBC_H
#define ASMARM_ARCH_TEGRA_KBC_H
#include <linux/types.h>
#include <linux/input/matrix_keypad.h>
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
#define KBC_MAX_GPIO 24
#define KBC_MAX_KPENT 8
#else
#define KBC_MAX_GPIO 20
#define KBC_MAX_KPENT 7
#endif
#define KBC_MAX_ROW 16
#define KBC_MAX_COL 8
#define KBC_MAX_KEY (KBC_MAX_ROW * KBC_MAX_COL)
struct tegra_kbc_pin_cfg {
bool is_row;
unsigned char num;
};
struct tegra_kbc_wake_key {
u8 row:4;
u8 col:4;
};
struct tegra_kbc_platform_data {
unsigned int debounce_cnt;
unsigned int repeat_cnt;
unsigned int wake_cnt; /* 0:wake on any key >1:wake on wake_cfg */
const struct tegra_kbc_wake_key *wake_cfg;
struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO];
const struct matrix_keymap_data *keymap_data;
bool wakeup;
};
#endif
......@@ -343,6 +343,16 @@ config KEYBOARD_NOMADIK
To compile this driver as a module, choose M here: the
module will be called nmk-ske-keypad.
config KEYBOARD_TEGRA
tristate "NVIDIA Tegra internal matrix keyboard controller support"
depends on ARCH_TEGRA
help
Say Y here if you want to use a matrix keyboard connected directly
to the internal keyboard controller on Tegra SoCs.
To compile this driver as a module, choose M here: the
module will be called tegra-kbc.
config KEYBOARD_OPENCORES
tristate "OpenCores Keyboard Controller"
help
......
......@@ -41,6 +41,7 @@ obj-$(CONFIG_KEYBOARD_SPEAR) += spear-keyboard.o
obj-$(CONFIG_KEYBOARD_STMPE) += stmpe-keypad.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
obj-$(CONFIG_KEYBOARD_TEGRA) += tegra-kbc.o
obj-$(CONFIG_KEYBOARD_TNETV107X) += tnetv107x-keypad.o
obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
......
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