void handlePageReadCommand(ts_channel_s *tsChannel, ts_response_format_e mode, uint16_t pageId, uint16_t offset,
uint16_t count) {
tsState.readPageCommandsCounter++;
currentPageId = pageId;
#if EFI_TUNER_STUDIO_VERBOSE
scheduleMsg(&tsLogger, "READ m=%d p=%d o=%d c=%d", mode, (int) currentPageId, offset, count);
printTsStats();
#endif
if (currentPageId >= PAGE_COUNT) {
// something is not right here
currentPageId = 0;
tunerStudioError("ERROR: invalid page number");
return;
}
int size = getTunerStudioPageSize(currentPageId);
if (size < offset + count) {
scheduleMsg(&tsLogger, "invalid offset/count %d/%d", offset, count);
sendErrorCode(tsChannel);
return;
}
const uint8_t *addr = (const uint8_t *) (getWorkingPageAddr(currentPageId) + offset);
tsSendResponse(tsChannel, mode, addr, count);
#if EFI_TUNER_STUDIO_VERBOSE
scheduleMsg(&tsLogger, "Sending %d done", count);
#endif
}
void handlePageReadCommand(ts_response_format_e mode, uint16_t pageId, uint16_t offset, uint16_t count) {
tsState.readPageCommandsCounter++;
tunerStudioDebug("got R (Read page)");
tsState.currentPageId = pageId;
#if EFI_TUNER_STUDIO_VERBOSE
scheduleMsg(&logger, "Page requested: page %d offset=%d count=%d", (int)tsState.currentPageId, offset, count);
#endif
if (tsState.currentPageId > MAX_PAGE_ID) {
scheduleMsg(&logger, "invalid Page number %x", tsState.currentPageId);
// something is not right here
tsState.currentPageId = 0;
tunerStudioError("ERROR: invalid page");
return;
}
int size = getTunerStudioPageSize(tsState.currentPageId);
if (size < offset + count) {
scheduleMsg(&logger, "invalid offset/count %d/%d", offset, count);
sendErrorCode();
return;
}
const uint8_t *addr = (const uint8_t *) (getWorkingPageAddr(tsState.currentPageId) + offset);
tsSendResponse(mode, addr, count);
#if EFI_TUNER_STUDIO_VERBOSE
scheduleMsg(&logger, "Sending %d done", count);
#endif
}
///<summary> Handles the network negotiation of an outgoing connection. Uses synchronous reads and sends. </summary>
///<param name='ipAddress'> The IP address string to connect to. </param>
///<param name='l4Port'> The transport layer port to connection to. </param>
///<param name='protocol'> The protocol the connection will use. </param>
///<param name='out_connectionPointer'> (OUT) The connection object for the newly initialized connection. </param>
///<returns> Error code on failure, result code from remote server on success. <returns>
uint16_t initializeOutgoingConnection(char *ipAddress, uint16_t l4Port, uint8_t protocol, POLYM_CONNECTION_INFO **out_connectionInfo)
{
POLYM_CONNECTION_INFO *connection_info;
uint16_t connectionID = allocateNewPeer(&connection_info);
char l4PortString[6];
_itoa(l4Port, l4PortString, 10);
void *connection = openNewConnection(ipAddress, l4PortString, &connection_info, protocol);
if (connection == NULL)
return POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL;
uint8_t buffer[500];
if (6 != sockRecv(connection, buffer, 6)) // recieve "POLY v" from greeting
{
sendErrorCode(POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL, connection);
removeConnection(connection_info);
return POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL;
}
int index = 6;
for (; index <= POLYM_GREETING_MAX_LENGTH; ++index) // recieve the rest of the greeting
{
if (1 != sockRecv(connection, &buffer[index], 1))
{
sendErrorCode(POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL, connection);
removeConnection(connection_info);
return POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL;
}
if (buffer[index] == '\n')
{
break;
}
}
if (index > POLYM_GREETING_MAX_LENGTH) // greeting is too long, close the connection
closeConnectionSocket(connection);
insertShortIntoBuffer(buffer, POLY_ENC_NONE); // encryption mode
insertShortIntoBuffer(&buffer[2], POLY_REALM_PEER); // realm code
sockSend(connection, buffer, 4); // send the connection request
if (2 != sockRecv(connection, buffer, 2))
{
sendErrorCode(POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL, connection);
removeConnection(connection_info);
return POLY_COMMAND_CONNECT_ERROR_CONNECTION_FAIL;
}
initializeNewPeerInfo(connection_info, connection, connectionID);
// TODO: send service update request
*out_connectionInfo = connection_info;
return getShortFromBuffer(buffer); //return result code recieved from remote server
}
void runBinaryProtocolLoop(ts_channel_s *tsChannel, bool_t isConsoleRedirect) {
int wasReady = false;
while (true) {
int isReady = ts_serial_ready(isConsoleRedirect);
if (!isReady) {
chThdSleepMilliseconds(10);
wasReady = false;
continue;
}
if (!wasReady) {
wasReady = true;
// scheduleSimpleMsg(&logger, "ts channel is now ready ", hTimeNow());
}
tsState.tsCounter++;
int recieved = chnReadTimeout(tsChannel->channel, &firstByte, 1, TS_READ_TIMEOUT);
if (recieved != 1) {
// tunerStudioError("ERROR: no command");
continue;
}
// scheduleMsg(logger, "Got first=%x=[%c]", firstByte, firstByte);
if (handlePlainCommand(tsChannel, firstByte))
continue;
recieved = chnReadTimeout(tsChannel->channel, &secondByte, 1, TS_READ_TIMEOUT);
if (recieved != 1) {
tunerStudioError("ERROR: no second");
continue;
}
// scheduleMsg(logger, "Got secondByte=%x=[%c]", secondByte, secondByte);
uint32_t incomingPacketSize = firstByte * 256 + secondByte;
if (incomingPacketSize == BINARY_SWITCH_TAG) {
// we are here if we get a binary switch request while already in binary mode. We will just ignore it.
tunerStudioWriteData(tsChannel, (const uint8_t *) &BINARY_RESPONSE, 2);
continue;
}
if (incomingPacketSize == 0 || incomingPacketSize > (sizeof(tsChannel->crcReadBuffer) - CRC_WRAPPING_SIZE)) {
scheduleMsg(&tsLogger, "TunerStudio: invalid size: %d", incomingPacketSize);
tunerStudioError("ERROR: CRC header size");
sendErrorCode(tsChannel);
continue;
}
recieved = chnReadTimeout(tsChannel->channel, (uint8_t* )tsChannel->crcReadBuffer, 1, TS_READ_TIMEOUT);
if (recieved != 1) {
tunerStudioError("ERROR: did not receive command");
continue;
}
char command = tsChannel->crcReadBuffer[0];
if (!isKnownCommand(command)) {
scheduleMsg(&tsLogger, "unexpected command %x", command);
sendErrorCode(tsChannel);
continue;
}
// scheduleMsg(logger, "TunerStudio: reading %d+4 bytes(s)", incomingPacketSize);
recieved = chnReadTimeout(tsChannel->channel, (uint8_t * ) (tsChannel->crcReadBuffer + 1),
incomingPacketSize + CRC_VALUE_SIZE - 1, TS_READ_TIMEOUT);
int expectedSize = incomingPacketSize + CRC_VALUE_SIZE - 1;
if (recieved != expectedSize) {
scheduleMsg(&tsLogger, "got ONLY %d for packet size %d/%d for command %c", recieved, incomingPacketSize,
expectedSize, command);
tunerStudioError("ERROR: not enough");
continue;
}
uint32_t expectedCrc = *(uint32_t*) (tsChannel->crcReadBuffer + incomingPacketSize);
expectedCrc = SWAP_UINT32(expectedCrc);
uint32_t actualCrc = crc32(tsChannel->crcReadBuffer, incomingPacketSize);
if (actualCrc != expectedCrc) {
scheduleMsg(&tsLogger, "TunerStudio: CRC %x %x %x %x", tsChannel->crcReadBuffer[incomingPacketSize + 0],
tsChannel->crcReadBuffer[incomingPacketSize + 1], tsChannel->crcReadBuffer[incomingPacketSize + 2],
tsChannel->crcReadBuffer[incomingPacketSize + 3]);
scheduleMsg(&tsLogger, "TunerStudio: command %c actual CRC %x/expected %x", tsChannel->crcReadBuffer[0],
actualCrc, expectedCrc);
tunerStudioError("ERROR: CRC issue");
continue;
}
// scheduleMsg(logger, "TunerStudio: P00-07 %x %x %x %x %x %x %x %x", crcIoBuffer[0], crcIoBuffer[1],
// crcIoBuffer[2], crcIoBuffer[3], crcIoBuffer[4], crcIoBuffer[5], crcIoBuffer[6], crcIoBuffer[7]);
int success = tunerStudioHandleCrcCommand(tsChannel, tsChannel->crcReadBuffer, incomingPacketSize);
if (!success)
print("got unexpected TunerStudio command %x:%c\r\n", command, command);
}
}
static msg_t tsThreadEntryPoint(void *arg) {
(void) arg;
chRegSetThreadName("tunerstudio thread");
int wasReady = false;
while (true) {
int isReady = ts_serail_ready();
if (!isReady) {
chThdSleepMilliseconds(10);
wasReady = false;
continue;
}
if (!wasReady) {
wasReady = TRUE;
// scheduleSimpleMsg(&logger, "ts channel is now ready ", hTimeNow());
}
tsCounter++;
int recieved = chSequentialStreamRead(getTsSerialDevice(), &firstByte, 1);
if (recieved != 1) {
tunerStudioError("ERROR: no command");
continue;
}
// scheduleMsg(&logger, "Got first=%x=[%c]", firstByte, firstByte);
if (handlePlainCommand(firstByte))
continue;
recieved = chSequentialStreamRead(getTsSerialDevice(), &secondByte, 1);
if (recieved != 1) {
tunerStudioError("ERROR: no second");
continue;
}
// scheduleMsg(&logger, "Got secondByte=%x=[%c]", secondByte, secondByte);
uint32_t incomingPacketSize = firstByte * 256 + secondByte;
if (incomingPacketSize == 0 || incomingPacketSize > (sizeof(crcIoBuffer) - CRC_WRAPPING_SIZE)) {
scheduleMsg(&logger, "TunerStudio: invalid size: %d", incomingPacketSize);
tunerStudioError("ERROR: size");
sendErrorCode();
continue;
}
recieved = chnReadTimeout(getTsSerialDevice(), crcIoBuffer, 1, MS2ST(TS_READ_TIMEOUT));
if (recieved != 1) {
tunerStudioError("ERROR: did not receive command");
continue;
}
char command = crcIoBuffer[0];
if (!isKnownCommand(command)) {
scheduleMsg(&logger, "unexpected command %x", command);
sendErrorCode();
continue;
}
// scheduleMsg(&logger, "TunerStudio: reading %d+4 bytes(s)", incomingPacketSize);
recieved = chnReadTimeout(getTsSerialDevice(), (uint8_t * ) (crcIoBuffer + 1), incomingPacketSize + CRC_VALUE_SIZE - 1,
MS2ST(TS_READ_TIMEOUT));
int expectedSize = incomingPacketSize + CRC_VALUE_SIZE - 1;
if (recieved != expectedSize) {
scheduleMsg(&logger, "got ONLY %d for packet size %d/%d for command %c", recieved, incomingPacketSize,
expectedSize, command);
tunerStudioError("ERROR: not enough");
continue;
}
uint32_t expectedCrc = *(uint32_t*) (crcIoBuffer + incomingPacketSize);
expectedCrc = SWAP_UINT32(expectedCrc);
uint32_t actualCrc = crc32(crcIoBuffer, incomingPacketSize);
if (actualCrc != expectedCrc) {
scheduleMsg(&logger, "TunerStudio: CRC %x %x %x %x", crcIoBuffer[incomingPacketSize + 0],
crcIoBuffer[incomingPacketSize + 1], crcIoBuffer[incomingPacketSize + 2],
crcIoBuffer[incomingPacketSize + 3]);
scheduleMsg(&logger, "TunerStudio: command %c actual CRC %x/expected %x", crcIoBuffer[0], actualCrc,
expectedCrc);
tunerStudioError("ERROR: CRC issue");
continue;
}
// scheduleMsg(&logger, "TunerStudio: P00-07 %x %x %x %x %x %x %x %x", crcIoBuffer[0], crcIoBuffer[1],
// crcIoBuffer[2], crcIoBuffer[3], crcIoBuffer[4], crcIoBuffer[5], crcIoBuffer[6], crcIoBuffer[7]);
int success = tunerStudioHandleCrcCommand(crcIoBuffer, incomingPacketSize);
if (!success)
print("got unexpected TunerStudio command %x:%c\r\n", command, command);
}
#if defined __GNUC__
return 0;
#endif
}
