/**
* Sends a package over given port
* (blocking function)
* \param[in] port COM port
* \param[in] buffer character buffer
* \param[in] len buffer length
* \return -1 if port not available
* \return 0 on success
*/
int32_t PIOS_COM_SendBuffer(uint32_t com_id, const uint8_t *buffer, uint16_t len)
{
struct pios_com_dev * com_dev = PIOS_COM_find_dev(com_id);
if (!PIOS_COM_validate(com_dev)) {
/* Undefined COM port for this board (see pios_board.c) */
return -1;
}
PIOS_Assert(com_dev->has_tx);
int32_t rc;
do {
rc = PIOS_COM_SendBufferNonBlocking(com_id, buffer, len);
#if defined(PIOS_INCLUDE_FREERTOS)
if (rc == -2) {
/* Make sure the transmitter is running while we wait */
if (com_dev->driver->tx_start) {
(com_dev->driver->tx_start)(com_dev->lower_id,
fifoBuf_getUsed(&com_dev->tx));
}
if (xSemaphoreTake(com_dev->tx_sem, portMAX_DELAY) != pdTRUE) {
return -3;
}
}
#endif
} while (rc == -2);
return len;
}
/**
* Forward data from UAVTalk out the serial port
* \param[in] data Data buffer to send
* \param[in] length Length of buffer
* \return -1 on failure
* \return number of bytes transmitted on success
*/
static int32_t send_data(uint8_t *data, int32_t length)
{
if( PIOS_COM_SendBufferNonBlocking(uavorelay_com_id, data, length) < 0)
return -1;
return length;
}
/**
* Sends a formatted string (-> printf) over given port
* \param[in] port COM port
* \param[in] *format zero-terminated format string - 128 characters supported maximum!
* \param[in] ... optional arguments,
* 128 characters supported maximum!
* \return -2 if non-blocking mode activated: buffer is full
* caller should retry until buffer is free again
* \return 0 on success
*/
int32_t PIOS_COM_SendFormattedStringNonBlocking(uint8_t port, char *format, ...)
{
uint8_t buffer[128]; // TODO: tmp!!! Provide a streamed COM method later!
va_list args;
va_start(args, format);
vsprintf((char *)buffer, format, args);
return PIOS_COM_SendBufferNonBlocking(port, buffer, (uint16_t)strlen((char *)buffer));
}
/**
* Sends a package over given port
* (blocking function)
* \param[in] port COM port
* \param[in] buffer character buffer
* \param[in] len buffer length
* \return -1 if port not available
* \return number of bytes transmitted on success
*/
int32_t PIOS_COM_SendBuffer(uintptr_t com_id, const uint8_t *buffer, uint16_t len)
{
struct pios_com_dev * com_dev = (struct pios_com_dev *)com_id;
if (!PIOS_COM_validate(com_dev)) {
/* Undefined COM port for this board (see pios_board.c) */
return -1;
}
PIOS_Assert(com_dev->has_tx);
uint32_t max_frag_len = fifoBuf_getSize(&com_dev->tx);
uint32_t bytes_to_send = len;
while (bytes_to_send) {
uint32_t frag_size;
if (bytes_to_send > max_frag_len) {
frag_size = max_frag_len;
} else {
frag_size = bytes_to_send;
}
int32_t rc = PIOS_COM_SendBufferNonBlocking(com_id, buffer, frag_size);
if (rc >= 0) {
bytes_to_send -= rc;
buffer += rc;
} else {
switch (rc) {
case -1:
/* Device is invalid, this will never work */
return -1;
case -2:
/* Device is busy, wait for the underlying device to free some space and retry */
/* Make sure the transmitter is running while we wait */
if (com_dev->driver->tx_start) {
(com_dev->driver->tx_start)(com_dev->lower_id,
fifoBuf_getUsed(&com_dev->tx));
}
#if defined(PIOS_INCLUDE_FREERTOS)
if (xSemaphoreTake(com_dev->tx_sem, 5000) != pdTRUE) {
return -3;
}
#endif
continue;
default:
/* Unhandled return code */
return rc;
}
}
}
return len;
}
/**
* Transmit data buffer to the modem or USB port.
* \param[in] data Data buffer to send
* \param[in] length Length of buffer
* \return -1 on failure
* \return number of bytes transmitted on success
*/
static int32_t pack_data(uint8_t * data, int32_t length)
{
if( PIOS_COM_SendBufferNonBlocking(pios_com_overo_id, data, length) < 0)
goto fail;
overosync->sent_bytes += length;
return length;
fail:
overosync->failed_objects++;
return -1;
}
/**
* Transmit data buffer to the modem or USB port.
* \param[in] data Data buffer to send
* \param[in] length Length of buffer
* \return 0 Success
*/
static int32_t transmitData(uint8_t * data, int32_t length)
{
uint32_t outputPort;
// Determine input port (USB takes priority over telemetry port)
#if defined(PIOS_INCLUDE_USB_HID)
if (PIOS_USB_HID_CheckAvailable(0)) {
outputPort = PIOS_COM_TELEM_USB;
} else
#endif /* PIOS_INCLUDE_USB_HID */
{
outputPort = telemetryPort;
}
return PIOS_COM_SendBufferNonBlocking(outputPort, data, length);
}
/* long SendBuffer(unsigned char *,unsigned int): sends a buffer content to picoc serial port */
void SystemSendBuffer(struct ParseState *Parser, struct Value *ReturnValue, struct Value **Param, int NumArgs)
{
if ((PIOS_COM_PICOC) && (Param[0]->Val->Pointer != NULL)) {
uint8_t *buffer = Param[0]->Val->Pointer;
uint16_t buf_len = Param[1]->Val->UnsignedInteger;
ReturnValue->Val->LongInteger = 0;
while (buf_len > 0) {
int32_t rc = PIOS_COM_SendBufferNonBlocking(PIOS_COM_PICOC, buffer, buf_len);
if (rc > 0) {
buf_len -= rc;
buffer += rc;
ReturnValue->Val->LongInteger += rc;
} else if (rc == 0) {
PIOS_Thread_Sleep(1);
} else {
ReturnValue->Val->LongInteger = rc;
return;
}
}
} else {
ReturnValue->Val->LongInteger = -1;
}
}
/**
* Sends a string over given port
* \param[in] port COM port
* \param[in] str zero-terminated string
* \return -1 if port not available
* \return -2 buffer is full
* caller should retry until buffer is free again
* \return 0 on success
*/
int32_t PIOS_COM_SendStringNonBlocking(uint8_t port, char *str)
{
return PIOS_COM_SendBufferNonBlocking(port, (uint8_t *)str, (uint16_t)strlen(str));
}
/**
* Sends a single character over given port
* \param[in] port COM port
* \param[in] c character
* \return -1 if port not available
* \return -2 buffer is full
* caller should retry until buffer is free again
* \return 0 on success
*/
int32_t PIOS_COM_SendCharNonBlocking(uint8_t port, char c)
{
return PIOS_COM_SendBufferNonBlocking(port, (uint8_t *)&c, 1);
}
/**
* Sends a string over given port
* \param[in] port COM port
* \param[in] str zero-terminated string
* \return -1 if port not available
* \return -2 buffer is full
* caller should retry until buffer is free again
* \return 0 on success
*/
int32_t PIOS_COM_SendStringNonBlocking(uint32_t com_id, const char *str)
{
return PIOS_COM_SendBufferNonBlocking(com_id, (uint8_t *)str, (uint16_t)strlen(str));
}
/**
* Sends a single character over given port
* \param[in] port COM port
* \param[in] c character
* \return -1 if port not available
* \return -2 buffer is full
* caller should retry until buffer is free again
* \return 0 on success
*/
int32_t PIOS_COM_SendCharNonBlocking(uint32_t com_id, char c)
{
return PIOS_COM_SendBufferNonBlocking(com_id, (uint8_t *)&c, 1);
}
/**
* Processes queue events
*/
static void processObjEvent(UAVObjEvent * ev)
{
UAVObjMetadata metadata;
// FlightTelemetryStatsData flightStats;
// GCSTelemetryStatsData gcsTelemetryStatsData;
// int32_t retries;
// int32_t success;
if (ev->obj == 0) {
updateTelemetryStats();
} else if (ev->obj == GCSTelemetryStatsHandle()) {
gcsTelemetryStatsUpdated();
} else if (ev->obj == TelemetrySettingsHandle()) {
updateSettings();
} else {
// Get object metadata
UAVObjGetMetadata(ev->obj, &metadata);
// If this is a metaobject then make necessary telemetry updates
if (UAVObjIsMetaobject(ev->obj)) {
updateObject(UAVObjGetLinkedObj(ev->obj)); // linked object will be the actual object the metadata are for
}
mavlink_message_t msg;
mavlink_system.sysid = 20;
mavlink_system.compid = MAV_COMP_ID_IMU;
mavlink_system.type = MAV_TYPE_FIXED_WING;
uint8_t mavClass = MAV_AUTOPILOT_OPENPILOT;
AlarmsClear(SYSTEMALARMS_ALARM_TELEMETRY);
// Setup type and object id fields
uint32_t objId = UAVObjGetID(ev->obj);
// uint64_t timeStamp = 0;
switch(objId) {
case BAROALTITUDE_OBJID:
{
BaroAltitudeGet(&baroAltitude);
pressure.press_abs = baroAltitude.Pressure*10.0f;
pressure.temperature = baroAltitude.Temperature*100.0f;
mavlink_msg_scaled_pressure_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &pressure);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
break;
}
case FLIGHTTELEMETRYSTATS_OBJID:
{
// FlightTelemetryStatsData flightTelemetryStats;
FlightTelemetryStatsGet(&flightStats);
// XXX this is a hack to make it think it got a confirmed
// connection
flightStats.Status = FLIGHTTELEMETRYSTATS_STATUS_CONNECTED;
GCSTelemetryStatsGet(&gcsTelemetryStatsData);
gcsTelemetryStatsData.Status = GCSTELEMETRYSTATS_STATUS_CONNECTED;
//
//
// //mavlink_msg_heartbeat_send(MAVLINK_COMM_0,mavlink_system.type,mavClass);
// mavlink_msg_heartbeat_pack(mavlink_system.sysid, mavlink_system.compid, &msg, mavlink_system.type, mavClass);
// // Copy the message to the send buffer
// uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// // Send buffer
// PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
break;
}
case SYSTEMSTATS_OBJID:
{
FlightStatusData flightStatus;
FlightStatusGet(&flightStatus);
uint8_t system_state = MAV_STATE_UNINIT;
uint8_t base_mode = 0;
uint8_t custom_mode = 0;
// Set flight mode
switch (flightStatus.FlightMode)
{
case FLIGHTSTATUS_FLIGHTMODE_MANUAL:
base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED;
break;
case FLIGHTSTATUS_FLIGHTMODE_POSITIONHOLD:
base_mode |= MAV_MODE_FLAG_GUIDED_ENABLED;
break;
case FLIGHTSTATUS_FLIGHTMODE_STABILIZED1:
base_mode |= MAV_MODE_FLAG_STABILIZE_ENABLED;
break;
case FLIGHTSTATUS_FLIGHTMODE_STABILIZED2:
base_mode |= MAV_MODE_FLAG_GUIDED_ENABLED;
break;
case FLIGHTSTATUS_FLIGHTMODE_STABILIZED3:
base_mode |= MAV_MODE_FLAG_AUTO_ENABLED;
break;
case FLIGHTSTATUS_FLIGHTMODE_VELOCITYCONTROL:
base_mode |= MAV_MODE_FLAG_GUIDED_ENABLED;
break;
default:
base_mode |= MAV_MODE_FLAG_MANUAL_INPUT_ENABLED;
break;
}
// Set arming state
switch (flightStatus.Armed)
{
case FLIGHTSTATUS_ARMED_ARMING:
case FLIGHTSTATUS_ARMED_ARMED:
system_state = MAV_STATE_ACTIVE;
base_mode |= MAV_MODE_FLAG_SAFETY_ARMED;
break;
case FLIGHTSTATUS_ARMED_DISARMED:
system_state = MAV_STATE_STANDBY;
base_mode &= !MAV_MODE_FLAG_SAFETY_ARMED;
break;
}
// Set HIL
if (hilEnabled) base_mode |= MAV_MODE_FLAG_HIL_ENABLED;
mavlink_msg_heartbeat_send(MAVLINK_COMM_0, mavlink_system.type, mavClass, base_mode, custom_mode, system_state);
SystemStatsData stats;
SystemStatsGet(&stats);
FlightBatteryStateData flightBatteryData;
FlightBatteryStateGet(&flightBatteryData);
FlightBatterySettingsData flightBatterySettings;
FlightBatterySettingsGet(&flightBatterySettings);
uint16_t batteryVoltage = (uint16_t)(flightBatteryData.Voltage*1000.0f);
int16_t batteryCurrent = -1; // -1: Not present / not estimated
int8_t batteryPercent = -1; // -1: Not present / not estimated
// if (flightBatterySettings.SensorCalibrations[FLIGHTBATTERYSETTINGS_SENSORCALIBRATIONS_CURRENTFACTOR] == 0)
// {
// Factor is zero, sensor is not present
// Estimate remaining capacity based on lipo curve
batteryPercent = 100.0f*((flightBatteryData.Voltage - 9.6f)/(12.6f - 9.6f));
// }
// else
// {
// // Use capacity and current
// batteryPercent = 100.0f*((flightBatterySettings.Capacity - flightBatteryData.ConsumedEnergy) / flightBatterySettings.Capacity);
// batteryCurrent = flightBatteryData.Current*100;
// }
mavlink_msg_sys_status_send(MAVLINK_COMM_0, 0xFF, 0xFF, 0xFF, ((uint16_t)stats.CPULoad*10), batteryVoltage, batteryCurrent, batteryPercent, 0, 0, 0, 0, 0, 0);
// // Copy the message to the send buffer
// uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// // Send buffer
// PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
break;
}
case ATTITUDERAW_OBJID:
{
AttitudeRawGet(&attitudeRaw);
// Copy data
attitude_raw.xacc = attitudeRaw.accels[ATTITUDERAW_ACCELS_X];
attitude_raw.yacc = attitudeRaw.accels[ATTITUDERAW_ACCELS_Y];
attitude_raw.zacc = attitudeRaw.accels[ATTITUDERAW_ACCELS_Z];
attitude_raw.xgyro = attitudeRaw.gyros[ATTITUDERAW_GYROS_X];
attitude_raw.ygyro = attitudeRaw.gyros[ATTITUDERAW_GYROS_Y];
attitude_raw.zgyro = attitudeRaw.gyros[ATTITUDERAW_GYROS_Z];
attitude_raw.xmag = attitudeRaw.magnetometers[ATTITUDERAW_MAGNETOMETERS_X];
attitude_raw.ymag = attitudeRaw.magnetometers[ATTITUDERAW_MAGNETOMETERS_Y];
attitude_raw.zmag = attitudeRaw.magnetometers[ATTITUDERAW_MAGNETOMETERS_Z];
mavlink_msg_raw_imu_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &attitude_raw);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
if (hilEnabled)
{
mavlink_hil_controls_t controls;
// Copy data
controls.roll_ailerons = 0.1;
controls.pitch_elevator = 0.1;
controls.yaw_rudder = 0.0;
controls.throttle = 0.8;
mavlink_msg_hil_controls_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &controls);
// Copy the message to the send buffer
len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
}
break;
}
case ATTITUDEMATRIX_OBJID:
{
AttitudeMatrixGet(&attitudeMatrix);
// Copy data
attitude.roll = attitudeMatrix.Roll;
attitude.pitch = attitudeMatrix.Pitch;
attitude.yaw = attitudeMatrix.Yaw;
attitude.rollspeed = attitudeMatrix.AngularRates[0];
attitude.pitchspeed = attitudeMatrix.AngularRates[1];
attitude.yawspeed = attitudeMatrix.AngularRates[2];
mavlink_msg_attitude_encode(mavlink_system.sysid,
mavlink_system.compid, &msg, &attitude);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
break;
}
case GPSPOSITION_OBJID:
{
GPSPositionGet(&gpsPosition);
gps_raw.time_usec = 0;
gps_raw.lat = gpsPosition.Latitude*10;
gps_raw.lon = gpsPosition.Longitude*10;
gps_raw.alt = gpsPosition.Altitude*10;
gps_raw.eph = gpsPosition.HDOP*100;
gps_raw.epv = gpsPosition.VDOP*100;
gps_raw.cog = gpsPosition.Heading*100;
gps_raw.satellites_visible = gpsPosition.Satellites;
gps_raw.fix_type = gpsPosition.Status;
mavlink_msg_gps_raw_int_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &gps_raw);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
// mavlink_msg_gps_raw_int_send(MAVLINK_COMM_0, gps_raw.usec, gps_raw.lat, gps_raw.lon, gps_raw.alt, gps_raw.eph, gps_raw.epv, gps_raw.hdg, gps_raw.satellites_visible, gps_raw.fix_type, 0);
break;
}
case POSITIONACTUAL_OBJID:
{
PositionActualData pos;
PositionActualGet(&pos);
mavlink_local_position_ned_t m_pos;
m_pos.time_boot_ms = 0;
m_pos.x = pos.North;
m_pos.y = pos.East;
m_pos.z = pos.Down;
m_pos.vx = 0.0f;
m_pos.vy = 0.0f;
m_pos.vz = 0.0f;
mavlink_msg_local_position_ned_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &m_pos);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
}
break;
case ACTUATORCOMMAND_OBJID:
{
mavlink_rc_channels_scaled_t rc;
float val;
ManualControlCommandRollGet(&val);
rc.chan1_scaled = val*1000;
ManualControlCommandPitchGet(&val);
rc.chan2_scaled = val*1000;
ManualControlCommandYawGet(&val);
rc.chan3_scaled = val*1000;
ManualControlCommandThrottleGet(&val);
rc.chan4_scaled = val*1000;
ActuatorCommandData act;
ActuatorCommandGet(&act);
rc.chan5_scaled = act.Channel[0];
rc.chan6_scaled = act.Channel[1];
rc.chan7_scaled = act.Channel[2];
rc.chan8_scaled = act.Channel[3];
ManualControlCommandData cmd;
ManualControlCommandGet(&cmd);
rc.rssi = ((uint8_t)(cmd.Connected == MANUALCONTROLCOMMAND_CONNECTED_TRUE))*255;
rc.port = 0;
mavlink_msg_rc_channels_scaled_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &rc);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(PIOS_COM_TELEM_RF, mavlinkTxBuf, len);
break;
}
case MANUALCONTROLCOMMAND_OBJID:
{
mavlink_rc_channels_scaled_t rc;
float val;
ManualControlCommandRollGet(&val);
rc.chan1_scaled = val*1000;
ManualControlCommandPitchGet(&val);
rc.chan2_scaled = val*1000;
ManualControlCommandYawGet(&val);
rc.chan3_scaled = val*1000;
ManualControlCommandThrottleGet(&val);
rc.chan4_scaled = val*1000;
rc.chan5_scaled = 0;
rc.chan6_scaled = 0;
rc.chan7_scaled = 0;
rc.chan8_scaled = 0;
ManualControlCommandData cmd;
ManualControlCommandGet(&cmd);
rc.rssi = ((uint8_t)(cmd.Connected == MANUALCONTROLCOMMAND_CONNECTED_TRUE))*255;
rc.port = 0;
mavlink_msg_rc_channels_scaled_encode(mavlink_system.sysid, mavlink_system.compid, &msg, &rc);
// Copy the message to the send buffer
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, &msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(PIOS_COM_TELEM_RF, mavlinkTxBuf, len);
break;
}
default:
{
//printf("unknown object: %x\n",(unsigned int)objId);
break;
}
}
}
}
/*
* @brief Sends a MAVLink message over UDP
*/
void mavlink_missionlib_send_message(mavlink_message_t* msg)
{
uint16_t len = mavlink_msg_to_send_buffer(mavlinkTxBuf, msg);
// Send buffer
PIOS_COM_SendBufferNonBlocking(telemetryPort, mavlinkTxBuf, len);
}
void trans_process(void)
{ // copy data from comm-port RX buffer to RF packet handler TX buffer, and from RF packet handler RX buffer to comm-port TX buffer
// ********************
// decide which comm-port we are using (usart or usb)
bool usb_comms = false; // TRUE if we are using the usb port for comms.
uint32_t comm_port = PIOS_COM_SERIAL; // default to using the usart comm-port
#if defined(PIOS_INCLUDE_USB)
if (PIOS_USB_CheckAvailable(0))
{ // USB comms is up, use the USB comm-port instead of the USART comm-port
usb_comms = true;
comm_port = PIOS_COM_TELEM_USB;
}
#endif
// ********************
// check to see if the local communication port has changed (usart/usb)
if (trans_previous_com_port == 0 && trans_previous_com_port != comm_port)
{ // the local communications port has changed .. remove any data in the buffers
trans_temp_buffer2_wr = 0;
}
else
if (usb_comms)
{ // we're using the USB for comms - keep the USART rx buffer empty
uint8_t c;
while (PIOS_COM_ReceiveBuffer(PIOS_COM_SERIAL, &c, 1, 0) > 0);
}
trans_previous_com_port = comm_port; // remember the current comm-port we are using
// ********************
uint16_t connection_index = 0; // the RF connection we are using
// ********************
// send the data received down the comm-port to the RF packet handler TX buffer
if (saved_settings.mode == MODE_NORMAL || saved_settings.mode == MODE_STREAM_TX)
{
// free space size in the RF packet handler tx buffer
uint16_t ph_num = ph_putData_free(connection_index);
// set the USART RTS handshaking line
if (!usb_comms)
{
if (ph_num < 32 || !ph_connected(connection_index))
SERIAL_RTS_CLEAR; // lower the USART RTS line - we don't have space in the buffer for anymore bytes
else
SERIAL_RTS_SET; // release the USART RTS line - we have space in the buffer for now bytes
}
else
SERIAL_RTS_SET; // release the USART RTS line
// limit number of bytes we will get to the size of the temp buffer
if (ph_num > sizeof(trans_temp_buffer1))
ph_num = sizeof(trans_temp_buffer1);
// copy data received down the comm-port into our temp buffer
register uint16_t bytes_saved = 0;
bytes_saved = PIOS_COM_ReceiveBuffer(comm_port, trans_temp_buffer1, ph_num, 0);
// put the received comm-port data bytes into the RF packet handler TX buffer
if (bytes_saved > 0)
{
trans_rx_timer = 0;
ph_putData(connection_index, trans_temp_buffer1, bytes_saved);
}
}
else
{ // empty the comm-ports rx buffer
uint8_t c;
while (PIOS_COM_ReceiveBuffer(comm_port, &c, 1, 0) > 0);
}
// ********************
// send the data received via the RF link out the comm-port
if (saved_settings.mode == MODE_NORMAL || saved_settings.mode == MODE_STREAM_RX)
{
if (trans_temp_buffer2_wr < sizeof(trans_temp_buffer2))
{
// get number of data bytes received via the RF link
uint16_t ph_num = ph_getData_used(connection_index);
// limit to how much space we have in the temp buffer
if (ph_num > sizeof(trans_temp_buffer2) - trans_temp_buffer2_wr)
ph_num = sizeof(trans_temp_buffer2) - trans_temp_buffer2_wr;
if (ph_num > 0)
{ // fetch the data bytes received via the RF link and save into our temp buffer
ph_num = ph_getData(connection_index, trans_temp_buffer2 + trans_temp_buffer2_wr, ph_num);
trans_temp_buffer2_wr += ph_num;
}
}
#if (defined(PIOS_COM_DEBUG) && (PIOS_COM_DEBUG == PIOS_COM_SERIAL))
if (!usb_comms)
{ // the serial-port is being used for debugging - don't send data down it
trans_temp_buffer2_wr = 0;
trans_tx_timer = 0;
return;
}
#endif
if (trans_temp_buffer2_wr > 0)
{ // we have data in our temp buffer that needs sending out the comm-port
if (usb_comms || (!usb_comms && GPIO_IN(SERIAL_CTS_PIN)))
{ // we are OK to send the data out the comm-port
// send the data out the comm-port
int32_t res = PIOS_COM_SendBufferNonBlocking(comm_port, trans_temp_buffer2, trans_temp_buffer2_wr); // this one doesn't work properly with USB :(
if (res >= 0)
{ // data was sent out the comm-port OK .. remove the sent data from the temp buffer
trans_temp_buffer2_wr = 0;
trans_tx_timer = 0;
}
else
{ // failed to send the data out the comm-port
#if defined(TRANS_DEBUG)
DEBUG_PRINTF("PIOS_COM_SendBuffer %d %d\r\n", trans_temp_buffer2_wr, res);
#endif
if (trans_tx_timer >= 5000)
trans_temp_buffer2_wr = 0; // seems we can't send our data for at least the last 5 seconds - delete it
}
}
}
}
else
{ // empty the buffer
trans_temp_buffer2_wr = 0;
trans_tx_timer = 0;
}
// ********************
}
