blob: cc1dec04b2906c34c34b1c46cfc5fb9904b38d25 [file] [log] [blame]
/* Copyright 2013 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.
*
* MKBP keyboard protocol
*/
#ifndef __CROS_EC_KEYBOARD_MKBP_H
#define __CROS_EC_KEYBOARD_MKBP_H
#include "common.h"
#include "keyboard_config.h"
/**
* Add keyboard state into FIFO
*
* @return EC_SUCCESS if entry added, EC_ERROR_OVERFLOW if FIFO is full
*/
int keyboard_fifo_add(const uint8_t *buffp);
/**
* Add an element to the common MKBP FIFO.
*
* @param event_type The MKBP event type.
* @param buffp Pointer to the event data to enqueue.
* @return EC_SUCCESS if entry added, EC_ERROR_OVERFLOW if FIFO is full.
*/
int mkbp_fifo_add(uint8_t event_type, const uint8_t *buffp);
/**
* Clear the MKBP common FIFO.
*/
void mkbp_clear_fifo(void);
/**
* Send KEY_BATTERY keystroke.
*/
#ifdef CONFIG_KEYBOARD_PROTOCOL_MKBP
void keyboard_send_battery_key(void);
#else
static inline void keyboard_send_battery_key(void) { }
#endif
/**
* Update the state of the switches.
*
* @param sw The switch that changed.
* @param state The state of the switch.
*/
void mkbp_update_switches(uint32_t sw, int state);
#endif /* __CROS_EC_KEYBOARD_MKBP_H */