Files
OpenCellular/include/button.h
Nicolas Boichat 90ae18655c button: Check volume up/down status and set recovery mode
Add support for entering recovery mode using volume up/down keys.

BRANCH=none
BUG=chrome-os-partner:61930
TEST=Press Power+Volume Up+Volume Down, poppy enters recovery

Change-Id: Id40a144e9b430cfb9dfd47048e9e96d598bc3db8
Reviewed-on: https://chromium-review.googlesource.com/428530
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2017-01-20 00:05:06 -08:00

58 lines
1.2 KiB
C

/* 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[];
/*
* Button initialization, called from main.
*/
void button_init(void);
/*
* Interrupt handler for button.
*
* @param signal Signal which triggered the interrupt.
*/
void button_interrupt(enum gpio_signal signal);
#endif /* __CROS_EC_BUTTON_H */