forked from rrcarlosr/Jetpack
30 lines
651 B
C
30 lines
651 B
C
|
/*
|
||
|
|
* Chromium OS Matrix Keyboard Message Protocol definitions
|
||
|
|
*
|
||
|
|
* Copyright (c) 2012 The Chromium OS Authors.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: GPL-2.0+
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _CROS_MESSAGE_H
|
||
|
|
#define _CROS_MESSAGE_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Command interface between EC and AP, for LPC, I2C and SPI interfaces.
|
||
|
|
*
|
||
|
|
* This is copied from the Chromium OS Open Source Embedded Controller code.
|
||
|
|
*/
|
||
|
|
enum {
|
||
|
|
/* The header byte, which follows the preamble */
|
||
|
|
MSG_HEADER = 0xec,
|
||
|
|
|
||
|
|
MSG_HEADER_BYTES = 3,
|
||
|
|
MSG_TRAILER_BYTES = 2,
|
||
|
|
MSG_PROTO_BYTES = MSG_HEADER_BYTES + MSG_TRAILER_BYTES,
|
||
|
|
|
||
|
|
/* Max length of messages */
|
||
|
|
MSG_BYTES = EC_PROTO2_MAX_PARAM_SIZE + MSG_PROTO_BYTES,
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|