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/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google LLC
*
* 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; version 2 of the License.
*
* 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.
*/
#ifndef EC_GOOGLE_COMMON_MEC_H
#define EC_GOOGLE_COMMON_MEC_H
#include <stddef.h>
#include <stdint.h>
/* Indicate read or write from MEC IO region */
enum mec_io_type {
MEC_IO_READ,
MEC_IO_WRITE
};
/*
* mec_io_bytes - Read / write bytes to MEC EMI port
*
* @type: Indicate read or write operation
* @base: Base address for MEC EMI region
* @offset: Base read / write address
* @buffer: Destination / source buffer
* @size: Number of bytes to read / write
*
* @returns 8-bit checksum of all bytes read or written
*/
uint8_t mec_io_bytes(enum mec_io_type type, uint16_t base,
uint16_t offset, void *buffer, size_t size);
#endif /* EC_GOOGLE_COMMON_MEC_H */
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