tillitis-key/hw/application_fpga/fw/tk1/proto.h
2023-03-27 10:58:16 +02:00

58 lines
974 B
C

/*
* Copyright (C) 2022, 2023 - Tillitis AB
* SPDX-License-Identifier: GPL-2.0-only
*/
#include "types.h"
#ifndef PROTO_H
#define PROTO_H
enum endpoints {
DST_HW_IFPGA,
DST_HW_AFPGA,
DST_FW,
DST_SW
};
enum cmdlen {
LEN_1,
LEN_4,
LEN_32,
LEN_128
};
#define CMDLEN_MAXBYTES 128
// clang-format off
enum fwcmd {
FW_CMD_NAME_VERSION = 0x01,
FW_RSP_NAME_VERSION = 0x02,
FW_CMD_LOAD_APP = 0x03,
FW_RSP_LOAD_APP = 0x04,
FW_CMD_LOAD_APP_DATA = 0x05,
FW_RSP_LOAD_APP_DATA = 0x06,
FW_RSP_LOAD_APP_DATA_READY = 0x07,
FW_CMD_GET_UDI = 0x08,
FW_RSP_GET_UDI = 0x09,
FW_CMD_MAX = 0x0a,
};
// clang-format on
enum status {
STATUS_OK,
STATUS_BAD
};
struct frame_header {
uint8_t id;
enum endpoints endpoint;
enum cmdlen len;
};
void writebyte(uint8_t b);
uint8_t readbyte();
void fwreply(struct frame_header hdr, enum fwcmd rspcode, uint8_t *buf);
int readcommand(struct frame_header *hdr, uint8_t *cmd, int state);
#endif