[people/ms/u-boot.git] / include / cros_ec_message.h

/*
 * Chromium OS Matrix Keyboard Message Protocol definitions
 *
 * Copyright (c) 2012 The Chromium OS Authors.
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#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_HOST_PARAM_SIZE + MSG_PROTO_BYTES,
};

#endif
Commit	Line	Data
88364387 HT	1	/*
	2	* Chromium OS Matrix Keyboard Message Protocol definitions
	3	*
	4	* Copyright (c) 2012 The Chromium OS Authors.
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#ifndef _CROS_MESSAGE_H
	25	#define _CROS_MESSAGE_H
	26
	27	/*
	28	* Command interface between EC and AP, for LPC, I2C and SPI interfaces.
	29	*
	30	* This is copied from the Chromium OS Open Source Embedded Controller code.
	31	*/
	32	enum {
	33	/* The header byte, which follows the preamble */
	34	MSG_HEADER = 0xec,
	35
	36	MSG_HEADER_BYTES = 3,
	37	MSG_TRAILER_BYTES = 2,
	38	MSG_PROTO_BYTES = MSG_HEADER_BYTES + MSG_TRAILER_BYTES,
	39
	40	/* Max length of messages */
	41	MSG_BYTES = EC_HOST_PARAM_SIZE + MSG_PROTO_BYTES,
	42	};
	43
	44	#endif