int eCableScan::nextChannel()
{
ePtr<iDVBFrontend> fe;
m_SDT = NULL;
if (scanChannels.empty())
{
m_channel = NULL;
createBouquets();
return 1;
}
scanProgress(100 - (scanChannels.size() * 90) / totalChannels);
currentScanChannel = scanChannels.front();
scanChannels.pop_front();
if (m_channel->getFrontend(fe))
{
m_channel = NULL;
scanCompleted(-1);
return -1;
}
if (fe->tune(*currentScanChannel))
return nextChannel();
m_SDT = new eTable<ServiceDescriptionSection>;
CONNECT(m_SDT->tableReady, eCableScan::SDTReady);
m_SDT->start(m_demux, eDVBSDTSpec());
return 0;
}
RESULT eDVBScan::nextChannel()
{
ePtr<iDVBFrontend> fe;
m_SDT = 0; m_PAT = 0; m_BAT = 0; m_NIT = 0, m_PMT = 0;
m_ready = 0;
m_pat_tsid = eTransportStreamID();
/* check what we need */
m_ready_all = readySDT;
if (m_flags & scanNetworkSearch)
m_ready_all |= readyNIT;
if (m_flags & scanSearchBAT)
m_ready_all |= readyBAT;
if (m_usePAT)
m_ready_all |= readyPAT;
if (!m_ch_blindscan.empty())
{
/* keep iterating with the same 'channel' till we get a tune failure */
SCAN_eDebug("[eDVBScan] blindscan channel iteration");
m_ch_current = m_ch_blindscan.front();
}
else
{
m_ch_blindscan_result = NULL;
if (m_ch_toScan.empty())
{
SCAN_eDebug("[eDVBScan] no channels left: %zd scanned, %zd unavailable, %zd database.",
m_ch_scanned.size(), m_ch_unavailable.size(), m_new_channels.size());
m_event(evtFinish);
return -ENOENT;
}
m_ch_current = m_ch_toScan.front();
m_ch_toScan.pop_front();
}
if (m_channel->getFrontend(fe))
{
m_event(evtFail);
return -ENOTSUP;
}
m_chid_current = eDVBChannelID();
m_channel_state = iDVBChannel::state_idle;
if (fe->tune(*m_ch_current, !m_ch_blindscan.empty()))
return nextChannel();
m_event(evtUpdate);
return 0;
}
void eCableScan::SDTReady(int error)
{
eDebug("[eCableScan] SDTReady %d", error);
if (!error)
{
parseSDT();
}
nextChannel();
}
static UInt32 allocChannel(TChannelPriority prio, IChannelObserver* pObserver)
{
UInt32 chid = nextChannel();
ERROR_CODE err = ::allocateChannel(prio, chid, pObserver);
if (err != ERR_OK)
{
LOG4CPLUS_ERROR(msLogger, "allocateChannel err = " + convertIntegerToString((int)err));
assert(err != ERR_OK);
}
return chid;
}
RESULT eDVBScan::nextChannel()
{
ePtr<iDVBFrontend> fe;
m_SDT = 0; m_PAT = 0; m_BAT = 0; m_NIT = 0, m_PMT = 0;
m_ready = 0;
m_pat_tsid = eTransportStreamID();
/* check what we need */
m_ready_all = readySDT;
if (m_flags & scanNetworkSearch)
m_ready_all |= readyNIT;
if (m_flags & scanSearchBAT)
m_ready_all |= readyBAT;
if (m_usePAT)
m_ready_all |= readyPAT;
if (m_ch_toScan.empty())
{
SCAN_eDebug("[eDVBScan] no channels left to scan.");
SCAN_eDebug("[eDVBScan] %zd channels scanned, %zd were unavailable.",
m_ch_scanned.size(), m_ch_unavailable.size());
SCAN_eDebug("[eDVBScan] %zd channels in database.", m_new_channels.size());
m_event(evtFinish);
return -ENOENT;
}
m_ch_current = m_ch_toScan.front();
m_ch_toScan.pop_front();
if (m_channel->getFrontend(fe))
{
m_event(evtFail);
return -ENOTSUP;
}
m_chid_current = eDVBChannelID();
m_channel_state = iDVBChannel::state_idle;
if (fe->tune(*m_ch_current))
return nextChannel();
m_event(evtUpdate);
return 0;
}
void eCableScan::NITReady(int error)
{
eDebug("[eCableScan] NITReady %d", error);
if (!error)
{
parseNIT();
nextChannel();
}
else
{
scanCompleted(-1);
}
m_NIT = NULL;
}
void eDVBScan::stateChange(iDVBChannel *ch)
{
int state;
if (ch->getState(state))
return;
if (m_channel_state == state)
return;
if (state == iDVBChannel::state_ok)
{
startFilter();
m_channel_state = state;
} else if (state == iDVBChannel::state_failed)
{
if (m_ch_current && m_channel)
{
int type;
m_ch_current->getSystem(type);
m_ch_unavailable.push_back(m_ch_current);
if (type == iDVBFrontend::feTerrestrial)
{
eDVBFrontendParametersTerrestrial parm;
m_ch_current->getDVBT(parm);
if (parm.system == eDVBFrontendParametersTerrestrial::System_DVB_T_T2)
{
/* we have to scan T2 as well as T */
ePtr<iDVBFrontend> fe;
eDVBFrontendParameters eparm;
parm.system = eDVBFrontendParametersTerrestrial::System_DVB_T2;
eparm.setDVBT(parm);
m_channel->getFrontend(fe);
if (fe)
{
ePtr<iDVBFrontendParameters> feparm = new eDVBFrontendParameters(eparm);
/* but only if the frontend supports T2 */
if (fe->isCompatibleWith(feparm))
{
addChannelToScan(feparm);
}
}
}
}
}
nextChannel();
}
/* unavailable will timeout, anyway. */
}
void eDVBScan::stateChange(iDVBChannel *ch)
{
int state;
if (ch->getState(state))
return;
if (m_channel_state == state)
return;
if (state == iDVBChannel::state_ok)
{
if (m_ch_current && m_channel)
{
int type;
m_ch_current->getSystem(type);
if (type == iDVBFrontend::feTerrestrial)
{
eDVBFrontendParametersTerrestrial parm;
m_ch_current->getDVBT(parm);
if (parm.system == eDVBFrontendParametersTerrestrial::System_DVB_T_T2)
{
/* we have a lock, this is a valid DVB-T transponder, set our system parameter */
parm.system = eDVBFrontendParametersTerrestrial::System_DVB_T;
m_ch_current->setDVBT(parm);
}
}
}
if (!m_ch_blindscan.empty())
{
/* update current blindscan iteration channel with scanned parameters */
if (m_ch_current && m_channel)
{
ePtr<iDVBFrontend> fe;
m_channel->getFrontend(fe);
if (fe)
{
ePtr<iDVBTransponderData> tp;
fe->getTransponderData(tp, false);
if (tp)
{
ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
int type;
m_ch_current->getSystem(type);
switch (type)
{
case iDVBFrontend::feSatellite:
{
eDVBFrontendParametersSatellite parm;
m_ch_current->getDVBS(parm);
parm.system = tp->getSystem();
parm.frequency = tp->getFrequency();
parm.symbol_rate = tp->getSymbolRate();
parm.modulation = tp->getModulation();
feparm->setDVBS(parm);
break;
}
case iDVBFrontend::feCable:
{
eDVBFrontendParametersCable parm;
m_ch_current->getDVBC(parm);
parm.system = tp->getSystem();
parm.frequency = tp->getFrequency();
parm.symbol_rate = tp->getSymbolRate();
parm.modulation = tp->getModulation();
feparm->setDVBC(parm);
break;
}
case iDVBFrontend::feTerrestrial:
{
eDVBFrontendParametersTerrestrial parm;
m_ch_current->getDVBT(parm);
parm.system = tp->getSystem();
parm.frequency = tp->getFrequency();
parm.bandwidth = tp->getBandwidth();
parm.modulation = tp->getConstellation();
feparm->setDVBT(parm);
break;
}
case iDVBFrontend::feATSC:
{
eDVBFrontendParametersATSC parm;
m_ch_current->getATSC(parm);
parm.system = tp->getSystem();
parm.frequency = tp->getFrequency();
feparm->setATSC(parm);
break;
}
}
m_ch_current = m_ch_blindscan_result = feparm;
}
}
}
}
startFilter();
m_channel_state = state;
} else if (state == iDVBChannel::state_failed)
{
if (m_ch_current && m_channel)
{
int type;
m_ch_current->getSystem(type);
m_ch_unavailable.push_back(m_ch_current);
if (type == iDVBFrontend::feTerrestrial)
{
eDVBFrontendParametersTerrestrial parm;
m_ch_current->getDVBT(parm);
if (parm.system == eDVBFrontendParametersTerrestrial::System_DVB_T_T2)
{
/* we have to scan T2 as well as T */
ePtr<iDVBFrontend> fe;
eDVBFrontendParameters eparm;
parm.system = eDVBFrontendParametersTerrestrial::System_DVB_T2;
eparm.setDVBT(parm);
m_channel->getFrontend(fe);
if (fe)
{
ePtr<iDVBFrontendParameters> feparm = new eDVBFrontendParameters(eparm);
/* but only if the frontend supports T2 */
if (fe->isCompatibleWith(feparm))
{
addChannelToScan(feparm);
}
}
}
}
}
if (!m_ch_blindscan.empty())
{
/* tune failure, this means the blindscan channel iteration run has completed */
SCAN_eDebug("[eDVBScan] blindscan channel completed");
m_ch_blindscan.pop_front();
}
nextChannel();
}
/* unavailable will timeout, anyway. */
}
rx_spi_received_e frSkyDHandlePacket(uint8_t * const packet, uint8_t * const protocolState)
{
static timeUs_t lastPacketReceivedTime = 0;
static timeUs_t telemetryTimeUs;
rx_spi_received_e ret = RX_SPI_RECEIVED_NONE;
const timeUs_t currentPacketReceivedTime = micros();
switch (*protocolState) {
case STATE_STARTING:
listLength = 47;
initialiseData(0);
*protocolState = STATE_UPDATE;
nextChannel(1);
cc2500Strobe(CC2500_SRX);
break;
case STATE_UPDATE:
lastPacketReceivedTime = currentPacketReceivedTime;
*protocolState = STATE_DATA;
if (rxSpiCheckBindRequested(false)) {
lastPacketReceivedTime = 0;
timeoutUs = 50;
missingPackets = 0;
*protocolState = STATE_INIT;
break;
}
FALLTHROUGH; //!!TODO -check this fall through is correct
// here FS code could be
case STATE_DATA:
if (cc2500getGdo()) {
uint8_t ccLen = cc2500ReadReg(CC2500_3B_RXBYTES | CC2500_READ_BURST) & 0x7F;
if (ccLen >= 20) {
cc2500ReadFifo(packet, 20);
if (packet[19] & 0x80) {
missingPackets = 0;
timeoutUs = 1;
if (packet[0] == 0x11) {
if ((packet[1] == rxFrSkySpiConfig()->bindTxId[0]) &&
(packet[2] == rxFrSkySpiConfig()->bindTxId[1])) {
rxSpiLedOn();
nextChannel(1);
cc2500setRssiDbm(packet[18]);
#if defined(USE_RX_FRSKY_SPI_TELEMETRY)
if ((packet[3] % 4) == 2) {
telemetryTimeUs = micros();
buildTelemetryFrame(packet);
*protocolState = STATE_TELEMETRY;
} else
#endif
{
cc2500Strobe(CC2500_SRX);
*protocolState = STATE_UPDATE;
}
ret = RX_SPI_RECEIVED_DATA;
lastPacketReceivedTime = currentPacketReceivedTime;
}
}
}
}
}
if (cmpTimeUs(currentPacketReceivedTime, lastPacketReceivedTime) > (timeoutUs * SYNC_DELAY_MAX)) {
#if defined(USE_RX_CC2500_SPI_PA_LNA)
cc2500TxDisable();
#endif
if (timeoutUs == 1) {
#if defined(USE_RX_CC2500_SPI_PA_LNA) && defined(USE_RX_CC2500_SPI_DIVERSITY) // SE4311 chip
if (missingPackets >= 2) {
cc2500switchAntennae();
}
#endif
if (missingPackets > MAX_MISSING_PKT) {
timeoutUs = 50;
setRssiDirect(0, RSSI_SOURCE_RX_PROTOCOL);
}
missingPackets++;
nextChannel(1);
} else {
rxSpiLedToggle();
setRssi(0, RSSI_SOURCE_RX_PROTOCOL);
nextChannel(13);
}
cc2500Strobe(CC2500_SRX);
*protocolState = STATE_UPDATE;
}
break;
#if defined(USE_RX_FRSKY_SPI_TELEMETRY)
case STATE_TELEMETRY:
if (cmpTimeUs(micros(), telemetryTimeUs) >= 1380) {
cc2500Strobe(CC2500_SIDLE);
cc2500SetPower(6);
cc2500Strobe(CC2500_SFRX);
#if defined(USE_RX_CC2500_SPI_PA_LNA)
cc2500TxEnable();
#endif
cc2500Strobe(CC2500_SIDLE);
cc2500WriteFifo(frame, frame[0] + 1);
*protocolState = STATE_DATA;
ret = RX_SPI_RECEIVED_DATA;
lastPacketReceivedTime = currentPacketReceivedTime;
}
break;
#endif
}
return ret;
}
