void GSMConfig::createCombinationI(TransceiverManager& TRX, unsigned CN, unsigned TN)
{
LOG_ASSERT((CN!=0)||(TN!=0));
LOG(NOTICE) << "Configuring combination I on C" << CN << "T" << TN;
ARFCNManager *radio = TRX.ARFCN(CN);
radio->setSlot(TN,1); // (pat) 1 => Transciever.h enum ChannelCombination = I
TCHFACCHLogicalChannel* chan = new TCHFACCHLogicalChannel(CN,TN,gTCHF_T[TN]);
chan->downstream(radio);
Thread* thread = new Thread;
thread->start((void*(*)(void*))Control::DCCHDispatcher,dynamic_cast<L3LogicalChannel*>(chan));
chan->lcinit();
if (CN == 0 && !testStart) chan->lcstart(); // Everything on C0 must broadcast continually.
gBTS.addTCH(chan);
}
// 6-2014 pat: The channel is now returned with T3101 running but un-started, which means it is not yet transmitting.
// The caller is responsible for setting the Timing Advance and then starting it.
TCHFACCHLogicalChannel *GSMConfig::getTCH(
bool forGPRS, // If true, allocate the channel to gprs, else to RR use.
bool onlyCN0) // If true, allocate only channels on the lowest ARFCN.
{
LOG(DEBUG);
ScopedLock lock(mLock);
//if (GPRS::GPRSDebug) {
// const unsigned sz = mTCHPool.size();
// char buf[300]; int n = 0;
// for (unsigned i=0; i<sz; i++) {
// TCHFACCHLogicalChannel *chan = mTCHPool[i];
// n += sprintf(&buf[n],"ch=%d:%d,g=%d,r=%d ",chan->CN(),chan->TN(),
// chan->inUseByGPRS(),chan->recyclable());
// }
// LOG(WARNING)<<"getTCH list:"<<buf;
//}
TCHFACCHLogicalChannel *chan = getChan<TCHFACCHLogicalChannel>(mTCHPool,forGPRS);
// (pat) We have to open it or set gprs mode before returning to avoid a race.
if (chan) {
// The channels are searched in order from low to high, so if the first channel
// found is not on CN0, we have failed.
//LOG(DEBUG)<<"getTCH returns"<<LOGVAR2("chan->CN",chan->CN());
if (onlyCN0 && chan->CN()) {
return NULL;
}
if (forGPRS) {
// (pat) Reserves channel for GPRS, but does not start delivering bursts yet.
chan->lcGetL1()->setGPRS(true,NULL);
return chan;
}
gReports.incr("OpenBTS.GSM.RR.ChannelAssignment");
chan->lcinit();
} else {
//LOG(DEBUG)<<"getTCH returns NULL";
}
LOG(DEBUG);
return chan;
}