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9c48895225
This patch declares recovery_buttons array, where each board lists recovery buttons. Pressing those while the board reboots makes the system enter recovery mode. BUG=none BRANCH=none TEST=buildall Change-Id: I1f204156efbd6d2a507d67ba90f75ce857b03559 Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/486944
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Button API for Chrome EC */
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#ifndef __CROS_EC_BUTTON_H
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#define __CROS_EC_BUTTON_H
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#include "common.h"
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#include "gpio.h"
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#define BUTTON_FLAG_ACTIVE_HIGH (1 << 0)
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enum keyboard_button_type {
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KEYBOARD_BUTTON_POWER = 0,
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KEYBOARD_BUTTON_VOLUME_DOWN,
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KEYBOARD_BUTTON_VOLUME_UP,
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KEYBOARD_BUTTON_CAPSENSE_1,
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KEYBOARD_BUTTON_CAPSENSE_2,
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KEYBOARD_BUTTON_CAPSENSE_3,
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KEYBOARD_BUTTON_CAPSENSE_4,
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KEYBOARD_BUTTON_CAPSENSE_5,
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KEYBOARD_BUTTON_CAPSENSE_6,
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KEYBOARD_BUTTON_CAPSENSE_7,
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KEYBOARD_BUTTON_CAPSENSE_8,
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KEYBOARD_BUTTON_COUNT
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};
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struct button_config {
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const char *name;
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enum keyboard_button_type type;
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enum gpio_signal gpio;
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uint32_t debounce_us;
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int flags;
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};
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/*
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* Defined in board.c. Should be CONFIG_BUTTON_COUNT elements long.
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*/
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extern const struct button_config buttons[];
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/*
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* Buttons used to decide whether recovery is requested or not
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*/
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extern const struct button_config *recovery_buttons[];
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extern const int recovery_buttons_count;
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/*
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* Button initialization, called from main.
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*/
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void button_init(void);
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/*
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* Interrupt handler for button.
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*
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* @param signal Signal which triggered the interrupt.
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*/
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void button_interrupt(enum gpio_signal signal);
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#endif /* __CROS_EC_BUTTON_H */
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