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/* Copyright (c) 2012 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.
*
* The functions implemented by keyboard component of EC core.
*/
#ifndef __CROS_EC_KEYBOARD_H
#define __CROS_EC_KEYBOARD_H
#include "common.h"
#define MAX_SCAN_CODE_LEN 4
/* Called by keyboard scan code once any key state change (after de-bounce),
*
* This function will look up matrix table and convert scancode host.
*/
void keyboard_state_changed(int row, int col, int is_pressed);
/* Handle the port 0x60 writes from host.
*
* This functions returns the number of bytes stored in *output buffer.
*/
int handle_keyboard_data(uint8_t data, uint8_t *output);
/* Handle the port 0x64 writes from host.
*
* This functions returns the number of bytes stored in *output buffer.
* BUT theose bytes will appear at port 0x60.
*/
int handle_keyboard_command(uint8_t command, uint8_t *output);
/* Clear the keyboard buffer to host. */
void keyboard_clear_underlying_buffer(void);
/* Send make/break code of power button to host. */
void keyboard_set_power_button(int pressed);
/* Log the keyboard-related information */
void kblog_put(char type, uint8_t byte);
#endif /* __CROS_EC_KEYBOARD_H */
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