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/* SPDX-License-Identifier: Apache-2.0 */
/* Copyright (C) 2018 IBM Corp. */
#ifndef MBOXD_MSG_H
#define MBOXD_MSG_H
#include <stdint.h>
struct mbox_context;
struct transport_ops;
/* Command Values */
#define MBOX_C_RESET_STATE 0x01
#define MBOX_C_GET_MBOX_INFO 0x02
#define MBOX_C_GET_FLASH_INFO 0x03
#define MBOX_C_READ_WINDOW 0x04
#define MBOX_C_CLOSE_WINDOW 0x05
#define MBOX_C_WRITE_WINDOW 0x06
#define MBOX_C_WRITE_DIRTY 0x07
#define MBOX_C_WRITE_FLUSH 0x08
#define MBOX_C_ACK 0x09
#define MBOX_C_WRITE_ERASE 0x0a
#define NUM_MBOX_CMDS MBOX_C_WRITE_ERASE
/* Response Values */
#define MBOX_R_SUCCESS 0x01
#define MBOX_R_PARAM_ERROR 0x02
#define MBOX_R_WRITE_ERROR 0x03
#define MBOX_R_SYSTEM_ERROR 0x04
#define MBOX_R_TIMEOUT 0x05
#define MBOX_R_BUSY 0x06
#define MBOX_R_WINDOW_ERROR 0x07
#define MBOX_R_SEQ_ERROR 0x08
/* MBOX Registers */
#define MBOX_HOST_PATH "/dev/aspeed-mbox"
#define MBOX_HOST_TIMEOUT_SEC 1
#define MBOX_ARGS_BYTES 11
#define MBOX_REG_BYTES 16
#define MBOX_HOST_EVENT 14
#define MBOX_BMC_EVENT 15
struct mbox_msg {
uint8_t command;
uint8_t seq;
uint8_t args[MBOX_ARGS_BYTES];
uint8_t response;
};
union mbox_regs {
uint8_t raw[MBOX_REG_BYTES];
struct mbox_msg msg;
};
int transport_mbox_dispatch(struct mbox_context *context);
int transport_mbox_init(struct mbox_context *context,
const struct transport_ops **ops);
void transport_mbox_free(struct mbox_context *context);
#endif /* MBOXD_MSG_H */
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