HRESULT UmxSender::Transmit(bool log)
{
if (!transferAllocated)
return -1;
HRESULT hr = -1;
hr = SoraURadioTx(Radio::Current()->GetRadioNum(), txID);
if (log)
{
logger->Log(LOG_FUNC_CALL, L"SoraURadioTx called for radio %d\n", Radio::Current()->GetRadioNum());
}
if (FAILED(hr))
{
logger->Log(LOG_ERROR, L"SoraURadioTx failed. ret = %x\r\n", hr);
return -1;
}
else
{
if (log)
{
logger->Log(LOG_SUCCESS, L"success\n");
}
return S_OK;
}
}
BOOLEAN DoDot11BTx(void* ctx)
{
// Alias
Monitor& monitor = ((TxContext *)ctx)->monitor;
const Config& config = ((TxContext *)ctx)->config;
monitor.Query(true);
HRESULT hr = SoraURadioTx(TARGET_RADIO, TxID);
if (FAILED(hr))
{
printf("[dot11b:tx] tx failed\n");
//break;
}
else
{
monitor.IncGoodCounter();
monitor.IncThroughput(config.GetPayloadLength());
}
// Note: if we send too fast, the RX part cannot demodulate all the frames,
// and the performance depends on the entry time, ie. not same in every experiment.
SoraStallWait(&tsinfo, 10000); // not to send too fast
return TRUE;
}
// Transit a buffer of <size> complex16 numbers
// ptr has to be 16 aligned and has to have space for x8 complex16 numbers, due to efficien packing to complex8
void writeSora(BlinkParams *params, complex16 *ptr, ULONG size)
{
HRESULT hr;
ULONG TxID;
ULONG dbg=0;
if (size*2 > params->radioParams.TXBufferSize)
{
fprintf (stderr, "Error: Sora Tx buffer too small (%ld needed)!\n", 2*size );
exit(1);
}
// Saturated packing need 16-bit aligned pointers since it uses SSE
if ((ULONG)ptr & 0xF > 0)
{
fprintf (stderr, "Error: Tx ptr has to be 16 aligned!\n");
exit(1);
}
// Saturated pack from complex16 (default Blink TX type) to complex8
vcs *vPtr = (vcs*)ptr;
unsigned int index = 0;
for(int i=0; i<size/4; i+=2)
{
vcs s1, s2;
s1 = vPtr[i];
s2 = vPtr[i+1];
vcb b = (vcb)saturated_pack((vs&)s1, (vs&)s2);
char *dst = (char *) params->TXBuffer;
memcpy((void*)(dst+index), (void*) (&b), sizeof(vcb));
index += sizeof(vcb);
}
// DEBUG:
//hr = SoraURadioTransferEx(params->radioParams.radioId, params->TXBuffer, 2*size, &TxID);
hr = SoraURadioTransferEx(params->radioParams.radioId, params->TXBuffer, 4*size, &TxID);
if (!SUCCEEDED(hr))
{
fprintf (stderr, "Error: Fail to transfer Sora Tx buffer!\n" );
exit(1);
}
hr = SoraURadioTx(params->radioParams.radioId, TxID);
if (!SUCCEEDED(hr))
{
fprintf (stderr, "Error: Fail to transmit Sora Tx buffer!\n" );
exit(1);
}
hr = SoraURadioTxFree(params->radioParams.radioId, TxID);
}
BOOLEAN DoDot11ATx(void* ctx)
{
// Alias
Monitor& monitor = ((TxContext *)ctx)->monitor;
const Config& config = ((TxContext *)ctx)->config;
monitor.Query(true);
HRESULT hr = SoraURadioTx(TARGET_RADIO, TxID);
if (FAILED(hr))
{
printf("[dot11b:tx] tx failed\n");
//break;
}
else
{
monitor.IncGoodCounter();
monitor.IncThroughput(config.GetPayloadLength());
}
SoraStallWait(&tsinfo, 10000); // not to send too fast
return TRUE;
}
// Buffers are ready, transfer them
DWORD WINAPI SoraTXWorker(void * pParam)
{
HRESULT hr = S_OK;
bool transferred = false;
bool idle_detected = FALSE;
writeSoraCtx *ctx = (writeSoraCtx *)pParam;
ULONG firstTx32, lastTx32;
ULONG cnt_tx = 0, cnt_rx = 0;
ULONG samp_PC_queue_ptr = 0;
ULONG samp_FPGA_queue_ptr = 0;
ULONG samp_queue_subsample = 0;
memset(samp_PC_queue, 0, sizeof(ULONGLONG)*MAX_NO_TX_BUFS);
memset(samp_FPGA_queue, 0, sizeof(ULONGLONG)*MAX_CMD_FIFO_QUEUE_SIZE);
samp_RX_queue_full = 0;
samp_RX_queue_free = 0;
bool blockPC = false;
bool blockFPGA = false;
ctx->idleTXDetected = 0;
ULONGLONG cnt_rnd = 0;
cnt_samp_FPGA_underflow = 0;
memset(samp_FPGA_underflow, 0, sizeof(ULONGLONG)* DEB_MAX_UNDERFLOW_QUEUE);
while (!rx_init_done || !tx_init_done);
// Synchronize initial queue positions
hr = ReadRegister(0x0550, &lastTx32);
hr = ReadRegister(0x0554, &firstTx32);
ctx->lastTx = lastTx32;
ctx->firstTx = firstTx32;
// TODO: here we might want to cache-align all the data to avoid cache misses
while (true)
{
bool bPC = ctx->transferBuf != ctx->prepareBuf;
bool bFPGA = diff_wrap(ctx->lastTx, ctx->firstTx) < cmd_fifo_queue_size;
blockPC = blockPC || (!bPC);
blockFPGA = blockFPGA || (!bFPGA);
if (bPC && bFPGA)
{
int queuePos = ctx->lastTx % cmd_fifo_queue_size;
hr = SoraURadioTransferEx(TARGET_RADIO_TX, ctx->TXBuffers[ctx->transferBuf],
ctx->TXBufferSize * sizeof(complex16), &(ctx->BufID[queuePos]));
hr = SoraURadioTx(TARGET_RADIO_TX, ctx->BufID[queuePos]);
ctx->lastTx++;
if (!SUCCEEDED(hr))
{
printf("SoraURadioTransferEx %d failed!\n", ctx->transferBuf);
return FALSE;
}
ctx->transferBuf = (ctx->transferBuf + 1) % no_tx_bufs;
// Store queue size samples for debugging
ULONG d1 = diff_wrap_max((ULONG)ctx->prepareBuf, (ULONG)ctx->transferBuf, no_tx_bufs);
d1 = min(d1, MAX_NO_TX_BUFS);
ULONG d2 = diff_wrap_max(ctx->lastTx, ctx->firstTx, cmd_fifo_queue_size);
d2 = min(d2, MAX_CMD_FIFO_QUEUE_SIZE);
samp_PC_queue[d1] ++;
samp_FPGA_queue[d2] ++;
if (d2 < 6) {
samp_FPGA_underflow[cnt_samp_FPGA_underflow] = cnt_rnd + 1;
cnt_samp_FPGA_underflow = min(cnt_samp_FPGA_underflow + 1, DEB_MAX_UNDERFLOW_QUEUE);
}
if (blockPC) ctx->transferBlocked++;
if (blockFPGA) ctx->transferBlockedFPGA++;
blockPC = false;
blockFPGA = false;
}
hr = ReadRegister(0x0550, &lastTx32);
hr = ReadRegister(0x0554, &firstTx32);
// Don't free the one just dequeued as the transmission could still be ongoing
// Only free once the subsequent has been dequeued
// Althoug 1 here makes sense, empirically seems that 2 is the minimum
while (diff_wrap(firstTx32, ctx->firstTx) > 2)
{
hr = SoraURadioTxFree(TARGET_RADIO_TX, ctx->BufID[ctx->firstTx % cmd_fifo_queue_size]);
ctx->firstTx++;
}
/*
// Indeed, it never happened so removed to speed up the code
if (lastTx32 != ctx->lastTx)
{
printf("This should not happen!\n");
}
*/
// For some reason we cannot read Sora from this thread, as timing collapses. Didn't spend much time investigating this issue.
/*
#ifdef READ_IN_WORKER_THREAD
readSoraAndQueue();
#endif
*/
cnt_rnd++;
}
ctx->TXRunning = false;
return 0;
}
