diff options
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/kbc.h')
-rw-r--r-- | arch/arm/mach-tegra/include/mach/kbc.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/kbc.h b/arch/arm/mach-tegra/include/mach/kbc.h new file mode 100644 index 000000000000..4725c9815d0b --- /dev/null +++ b/arch/arm/mach-tegra/include/mach/kbc.h @@ -0,0 +1,77 @@ +/* + * arch/arm/mach-tegra/include/mach/kbc.h + * + * Platform definitions for tegra-kbc keyboard input driver + * + * Copyright (c) 2010, 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> + +#define KBC_MAX_ROW 16 +#define KBC_MAX_COL 8 +#define KBC_MAX_GPIO (KBC_MAX_ROW + KBC_MAX_COL) +#define KBC_MAX_KPRESS_EVENT 8 +#define KBC_MAX_KEY (KBC_MAX_ROW * KBC_MAX_COL) + +enum { + kbc_pin_unused = 0, + kbc_pin_row, + kbc_pin_col, +}; + +struct tegra_kbc_wake_key { + u8 row:4; + u8 col:4; +}; + +struct tegra_kbc_pin_cfg { + int pin_type; + unsigned char num; +}; +/** + * struct tegra_kbc_platform_data - Tegra kbc specific platform data for kbc + * driver. + * @debounce_cnt: Debaunce count in terms of clock ticks of 32KHz + * @repeat_cnt: The time to start next scan after completing the current scan + * in terms of clock ticks of 32KHz clock + * @scan_timeout_cnt: Number of clock count (32KHz) to keep scanning of keys + * after any key is pressed. + * @plain_keycode: The key code array for keys in normal mode. + * @fn_keycode: The key code array for keys with function key pressed. + * @is_filter_keys: Tells whether filter algorithms applied or not. + * @kbc_pin_type: The type of kbc pin whether unused or column or row. + * @is_wake_on_any_key: System whouls wakeup on any key or the key list from + * wake_cfg. + * @wake_key_cnt: Number of key count in wakeup list. + */ +struct tegra_kbc_platform_data { + unsigned int debounce_cnt; + unsigned int repeat_cnt; + unsigned int scan_timeout_cnt; + int *plain_keycode; + int *fn_keycode; + bool is_filter_keys; + struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO]; + bool is_wake_on_any_key; + struct tegra_kbc_wake_key *wake_cfg; + int wake_key_cnt; +}; +#endif |