| /* Copyright (c) 2014 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| /* Button API for Chrome EC */ |
| |
| #ifndef __CROS_EC_BUTTON_H |
| #define __CROS_EC_BUTTON_H |
| |
| #include "common.h" |
| #include "gpio.h" |
| |
| #define BUTTON_FLAG_ACTIVE_HIGH (1 << 0) |
| |
| enum keyboard_button_type { |
| KEYBOARD_BUTTON_POWER = 0, |
| KEYBOARD_BUTTON_VOLUME_DOWN, |
| KEYBOARD_BUTTON_VOLUME_UP, |
| KEYBOARD_BUTTON_CAPSENSE_1, |
| KEYBOARD_BUTTON_CAPSENSE_2, |
| KEYBOARD_BUTTON_CAPSENSE_3, |
| KEYBOARD_BUTTON_CAPSENSE_4, |
| KEYBOARD_BUTTON_CAPSENSE_5, |
| KEYBOARD_BUTTON_CAPSENSE_6, |
| KEYBOARD_BUTTON_CAPSENSE_7, |
| KEYBOARD_BUTTON_CAPSENSE_8, |
| |
| KEYBOARD_BUTTON_COUNT |
| }; |
| |
| struct button_config { |
| const char *name; |
| enum keyboard_button_type type; |
| enum gpio_signal gpio; |
| uint32_t debounce_us; |
| int flags; |
| }; |
| |
| /* |
| * Defined in board.c. Should be CONFIG_BUTTON_COUNT elements long. |
| */ |
| extern const struct button_config buttons[]; |
| |
| /* |
| * Interrupt handler for button. |
| * |
| * @param signal Signal which triggered the interrupt. |
| */ |
| void button_interrupt(enum gpio_signal signal); |
| |
| #endif /* __CROS_EC_BUTTON_H */ |