bool FLASH_LoadNV(const uint8* data, uint32 size)
{
FlashFileHeader header;
std::vector<uint8> flashdata;
//Initialise the internal flash configuration
block_count = 0;
//Read flash buffer header
if (size < sizeof(FlashFileHeader))
return false;
memcpy((uint8 *)&header, data, sizeof(FlashFileHeader));
//Verify correct flash id
if (header.valid_flash_id != FLASH_VALID_ID)
{
return false;
//throw MDFN_Error(0, _("FLASH header ID is bad!"));
}
if (header.total_file_length < sizeof(FlashFileHeader) || header.total_file_length > 16384 * 1024)
{
return false;
//throw MDFN_Error(0, _("FLASH header total_file_length is bad!"));
}
if (size < header.total_file_length)
return false;
flashdata.resize(header.total_file_length);
memcpy(&flashdata[0], data, flashdata.size());
if (!do_flash_read(&flashdata[0]))
return false;
return true;
}
uint8_t cmd_loop() {
uint8_t cmd;
do {
uint32_t args[4];
uint32_t len = SLIP_recv(&cmd, 1);
if (len != 1) {
continue;
}
uint8_t resp = 0xff;
switch (cmd) {
case CMD_FLASH_ERASE: {
len = SLIP_recv(args, sizeof(args));
if (len == 8) {
resp = do_flash_erase(args[0] /* addr */, args[1] /* len */);
} else {
resp = 0x31;
}
break;
}
case CMD_FLASH_WRITE: {
len = SLIP_recv(args, sizeof(args));
if (len == 12) {
resp = do_flash_write(args[0] /* addr */, args[1] /* len */,
args[2] /* erase */);
} else {
resp = 0x41;
}
break;
}
case CMD_FLASH_READ: {
len = SLIP_recv(args, sizeof(args));
if (len == 16) {
resp = do_flash_read(args[0] /* addr */, args[1], /* len */
args[2] /* block_size */,
args[3] /* max_in_flight */);
} else {
resp = 0x51;
}
break;
}
case CMD_FLASH_DIGEST: {
len = SLIP_recv(args, sizeof(args));
if (len == 12) {
resp = do_flash_digest(args[0] /* addr */, args[1], /* len */
args[2] /* digest_block_size */);
} else {
resp = 0x61;
}
break;
}
case CMD_FLASH_READ_CHIP_ID: {
resp = do_flash_read_chip_id();
break;
}
case CMD_FLASH_ERASE_CHIP: {
resp = SPIEraseChip();
break;
}
case CMD_BOOT_FW:
case CMD_REBOOT: {
resp = 0;
SLIP_send(&resp, 1);
return cmd;
}
}
SLIP_send(&resp, 1);
} while (cmd != CMD_BOOT_FW && cmd != CMD_REBOOT);
return cmd;
}
