unsigned char *uscanf(char retstr[],uint8_t elements,uint8_t onoff) {
unsigned char str[50];
strcpy(str,"");
switch (onoff) {
case ON:
for(x=0;x<elements;x++) {
str[x] = rxb();
if(str[x] == '\r'){str[x] = 0;x = elements;}
}
break;
case OFF:
for(x=0;x<elements;x++) {
str[x] = rxb();
}
break;
}
strcpy(retstr,str);
return str;
}
// Send the specified BitVector at the specified block time.
void PDCHL1Downlink::transmit(RLCBSN_t bsn, BitVector *mI, const int *qbits, int transceiverflags)
{
parent()->debug_test();
// Format the bits into the bursts.
// GSM 05.03 4.1.5, 05.02 5.2.3
// NO! Dont do a wait here. The MAC serviceloop does this for all channels.
// waitToSend(); // Don't get too far ahead of the clock.
ARFCNManager *radio = getRadio();
if (!radio) {
// For some testing, we might not have a radio connected.
// That's OK, as long as we know it.
GLOG(INFO) << "XCCHL1Encoder with no radio, dumping frames";
return;
}
int fn = bsn.FN();
int tn = TN();
for (int qi=0,B=0; B<4; B++) {
Time nextWriteTime(fn,tn | transceiverflags);
mchBurst.time(nextWriteTime);
// Copy in the "encrypted" bits, GSM 05.03 4.1.5, 05.02 5.2.3.
//OBJLOG(DEBUG) << "transmit mI["<<B<<"]=" << mI[B];
mI[B].segment(0,57).copyToSegment(mchBurst,3);
mI[B].segment(57,57).copyToSegment(mchBurst,88);
mchBurst.Hl(qbits[qi++]);
mchBurst.Hu(qbits[qi++]);
// Send it to the radio.
//OBJLOG(DEBUG) << "transmit mchBurst=" << mchBurst;
if (gConfig.getBool("Control.GSMTAP.GPRS")) {
// Send to GSMTAP.
gWriteGSMTAP(ARFCN(),TN(),gBSNNext.FN(),
TDMA_PDCH,
false, // not SACCH
false, // this is a downlink
mchBurst,
GSMTAP_TYPE_UM_BURST);
}
#if FEC_DEBUG
if (1) {
// Try decoding the frame we just encoded to see if it is correct.
devassert(mchBurst.size() == gSlotLen);
RxBurst rxb(mchBurst);
ChannelCodingType cc;
decodeLowSide(rxb, B, debugDecoder, &cc);
}
#endif
radio->writeHighSideTx(mchBurst,"GPRS");
fn++; // This cannot overflow because it is within an RLC block.
}
}
