void gpsEnablePassthrough(serialPort_t *gpsPassthroughPort)
{
waitForSerialPortToFinishTransmitting(gpsState.gpsPort);
waitForSerialPortToFinishTransmitting(gpsPassthroughPort);
if(!(gpsState.gpsPort->mode & MODE_TX))
serialSetMode(gpsState.gpsPort, gpsState.gpsPort->mode | MODE_TX);
LED0_OFF;
LED1_OFF;
char c;
while(1) {
if (serialRxBytesWaiting(gpsState.gpsPort)) {
LED0_ON;
c = serialRead(gpsState.gpsPort);
serialWrite(gpsPassthroughPort, c);
LED0_OFF;
}
if (serialRxBytesWaiting(gpsPassthroughPort)) {
LED1_ON;
c = serialRead(gpsPassthroughPort);
serialWrite(gpsState.gpsPort, c);
LED1_OFF;
}
}
}
void gpsEnablePassthrough(serialPort_t *gpsPassthroughPort)
{
waitForSerialPortToFinishTransmitting(gpsPort);
waitForSerialPortToFinishTransmitting(gpsPassthroughPort);
if(!(gpsPort->mode & MODE_TX))
serialSetMode(gpsPort, gpsPort->mode | MODE_TX);
#ifdef DISPLAY
if (feature(FEATURE_DISPLAY)) {
displayShowFixedPage(PAGE_GPS);
}
#endif
serialPassthrough(gpsPort, gpsPassthroughPort, &gpsHandlePassthrough, NULL);
}
gpsEnablePassthroughResult_e gpsEnablePassthrough(void)
{
if (gpsData.state != GPS_RECEIVING_DATA)
return GPS_PASSTHROUGH_NO_GPS;
serialPort_t *gpsPassthroughPort = findOpenSerialPort(FUNCTION_GPS_PASSTHROUGH);
if (gpsPassthroughPort) {
waitForSerialPortToFinishTransmitting(gpsPassthroughPort);
serialSetBaudRate(gpsPassthroughPort, serialConfig->gps_passthrough_baudrate);
} else {
gpsPassthroughPort = openSerialPort(FUNCTION_GPS_PASSTHROUGH, NULL, serialConfig->gps_passthrough_baudrate, MODE_RXTX, SERIAL_NOT_INVERTED);
if (!gpsPassthroughPort) {
return GPS_PASSTHROUGH_NO_SERIAL_PORT;
}
}
LED0_OFF;
LED1_OFF;
while(1) {
if (serialTotalBytesWaiting(gpsPort)) {
LED0_ON;
serialWrite(gpsPassthroughPort, serialRead(gpsPort));
LED0_OFF;
}
if (serialTotalBytesWaiting(gpsPassthroughPort)) {
LED1_ON;
serialWrite(gpsPort, serialRead(gpsPassthroughPort));
LED1_OFF;
}
}
return GPS_PASSTHROUGH_ENABLED;
}
void gpsEnablePassthrough(serialPort_t *gpsPassthroughPort)
{
waitForSerialPortToFinishTransmitting(gpsPort);
waitForSerialPortToFinishTransmitting(gpsPassthroughPort);
if(!(gpsPort->mode & MODE_TX))
serialSetMode(gpsPort, gpsPort->mode | MODE_TX);
LED0_OFF;
LED1_OFF;
#ifdef DISPLAY
if (feature(FEATURE_DISPLAY)) {
displayShowFixedPage(PAGE_GPS);
}
#endif
char c;
while(1) {
if (serialRxBytesWaiting(gpsPort)) {
LED0_ON;
c = serialRead(gpsPort);
gpsNewData(c);
serialWrite(gpsPassthroughPort, c);
LED0_OFF;
}
if (serialRxBytesWaiting(gpsPassthroughPort)) {
LED1_ON;
c = serialRead(gpsPassthroughPort);
serialWrite(gpsPort, c);
LED1_OFF;
}
#ifdef DISPLAY
if (feature(FEATURE_DISPLAY)) {
updateDisplay();
}
#endif
}
}
/*
A high-level serial passthrough implementation. Used by cli to start an
arbitrary serial passthrough "proxy". Optional callbacks can be given to allow
for specialized data processing.
*/
void serialPassthrough(serialPort_t *left, serialPort_t *right, serialConsumer
*leftC, serialConsumer *rightC)
{
waitForSerialPortToFinishTransmitting(left);
waitForSerialPortToFinishTransmitting(right);
if (!leftC)
leftC = &nopConsumer;
if (!rightC)
rightC = &nopConsumer;
LED0_OFF;
LED1_OFF;
// Either port might be open in a mode other than MODE_RXTX. We rely on
// serialRxBytesWaiting() to do the right thing for a TX only port. No
// special handling is necessary OR performed.
while(1) {
// TODO: maintain a timestamp of last data received. Use this to
// implement a guard interval and check for `+++` as an escape sequence
// to return to CLI command mode.
// https://en.wikipedia.org/wiki/Escape_sequence#Modem_control
if (serialRxBytesWaiting(left)) {
LED0_ON;
uint8_t c = serialRead(left);
serialWrite(right, c);
leftC(c);
LED0_OFF;
}
if (serialRxBytesWaiting(right)) {
LED0_ON;
uint8_t c = serialRead(right);
serialWrite(left, c);
rightC(c);
LED0_OFF;
}
}
}
void mspApplyVideoConfigurationFn(mspPort_t *msp)
{
waitForSerialPortToFinishTransmitting(msp->port);
osdApplyConfiguration();
}
void mspRebootFn(mspPort_t *msp)
{
waitForSerialPortToFinishTransmitting(msp->port); // TODO - postpone reboot, allow all modules to react
systemReset();
}
static void cliReboot(void) {
cliPrint("\r\nRebooting...");
waitForSerialPortToFinishTransmitting(cliPort);
systemReset(false);
}