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/* 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 */
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