1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 #ifndef EC_GOOGLE_COMMON_MEC_H 4 #define EC_GOOGLE_COMMON_MEC_H 5 6 #include <stddef.h> 7 #include <stdint.h> 8 9 /* Indicate read or write from MEC IO region */ 10 enum mec_io_type { 11 MEC_IO_READ, 12 MEC_IO_WRITE 13 }; 14 15 /* 16 * mec_io_bytes - Read / write bytes to MEC EMI port 17 * 18 * @type: Indicate read or write operation 19 * @base: Base address for MEC EMI region 20 * @offset: Base read / write address 21 * @buffer: Destination / source buffer 22 * @size: Number of bytes to read / write 23 * 24 * @returns 8-bit checksum of all bytes read or written 25 */ 26 27 uint8_t mec_io_bytes(enum mec_io_type type, uint16_t base, 28 uint16_t offset, void *buffer, size_t size); 29 30 #endif /* EC_GOOGLE_COMMON_MEC_H */ 31