mirror of
https://github.com/tillitis/tillitis-key1.git
synced 2024-12-30 01:46:26 -05:00
c80dc53027
We introduce an explicit state machine (see README). With the new states we: - combine setting size and USS to a single command. - start the device app immediatiely when having receceived the last data chunk and returning the digest. - Loop forever and wait for the stick to be removed if we end up in unknown state. Signed-off-by: Michael Cardell Widerkrantz <mc@tillitis.se>
62 lines
1.1 KiB
C
62 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2022 - 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,
|
|
};
|
|
// clang-format on
|
|
|
|
enum status {
|
|
STATUS_OK,
|
|
STATUS_BAD
|
|
};
|
|
|
|
struct frame_header {
|
|
uint8_t id;
|
|
enum endpoints endpoint;
|
|
enum cmdlen len;
|
|
};
|
|
|
|
uint8_t genhdr(uint8_t id, uint8_t endpoint, uint8_t status, enum cmdlen len);
|
|
int parseframe(uint8_t b, struct frame_header *hdr);
|
|
void fwreply(struct frame_header hdr, enum fwcmd rspcode, uint8_t *buf);
|
|
void writebyte(uint8_t b);
|
|
void write(uint8_t *buf, size_t nbytes);
|
|
uint8_t readbyte();
|
|
uint8_t readbyte_ledflash(int ledvalue, int loopcount);
|
|
void read(uint8_t *buf, size_t nbytes);
|
|
|
|
#endif
|