int IPU1dma()
{
int ipu1cycles = 0;
int totalqwc = 0;
//We need to make sure GIF has flushed before sending IPU data, it seems to REALLY screw FFX videos
if(!ipu1ch.chcr.STR || IPU1Status.DMAMode == 2)
{
//We MUST stop the IPU from trying to fill the FIFO with more data if the DMA has been suspended
//if we don't, we risk causing the data to go out of sync with the fifo and we end up losing some!
//This is true for Dragons Quest 8 and probably others which suspend the DMA.
DevCon.Warning("IPU1 running when IPU1 DMA disabled! CHCR %x QWC %x", ipu1ch.chcr._u32, ipu1ch.qwc);
return 0;
}
IPU_LOG("IPU1 DMA Called QWC %x Finished %d In Progress %d tadr %x", ipu1ch.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress, ipu1ch.tadr);
switch(IPU1Status.DMAMode)
{
case DMA_MODE_NORMAL:
{
IPU_LOG("Processing Normal QWC left %x Finished %d In Progress %d", ipu1ch.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress);
if(IPU1Status.InProgress) totalqwc += IPU1chain();
}
break;
case DMA_MODE_CHAIN:
{
if(IPU1Status.InProgress) //No transfer is ready to go so we need to set one up
{
IPU_LOG("Processing Chain QWC left %x Finished %d In Progress %d", ipu1ch.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress);
totalqwc += IPU1chain();
}
if(!IPU1Status.InProgress && !IPU1Status.DMAFinished) //No transfer is ready to go so we need to set one up
{
tDMA_TAG* ptag = dmaGetAddr(ipu1ch.tadr, false); //Set memory pointer to TADR
if (!ipu1ch.transfer("IPU1", ptag))
{
return totalqwc;
}
ipu1ch.madr = ptag[1]._u32;
ipu1cycles += 1; // Add 1 cycles from the QW read for the tag
IPU1Status.ChainMode = ptag->ID;
if(ipu1ch.chcr.TTE) DevCon.Warning("TTE?");
IPU1Status.DMAFinished = hwDmacSrcChain(ipu1ch, ptag->ID);
if(ipu1ch.qwc > 0) IPU1Status.InProgress = true;
IPU_LOG("dmaIPU1 dmaChain %8.8x_%8.8x size=%d, addr=%lx, fifosize=%x",
ptag[1]._u32, ptag[0]._u32, ipu1ch.qwc, ipu1ch.madr, 8 - g_BP.IFC);
if (ipu1ch.chcr.TIE && ptag->IRQ) //Tag Interrupt is set, so schedule the end/interrupt
IPU1Status.DMAFinished = true;
IPU_LOG("Processing Start Chain QWC left %x Finished %d In Progress %d", ipu1ch.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress);
totalqwc += IPU1chain();
//Set the TADR forward
}
}
break;
}
//Do this here to prevent double settings on Chain DMA's
if(totalqwc > 0 || ipu1ch.qwc == 0)
{
IPU_INT_TO(totalqwc * BIAS);
IPUProcessInterrupt();
}
else
{
cpuRegs.eCycle[4] = 0x9999;//IPU_INT_TO(2048);
}
IPU_LOG("Completed Call IPU1 DMA QWC Remaining %x Finished %d In Progress %d tadr %x", ipu1ch.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress, ipu1ch.tadr);
return totalqwc;
}
void IPU0dma()
{
if(!ipuRegs.ctrl.OFC)
{
IPU_INT_FROM( 64 );
IPUProcessInterrupt();
return;
}
int readsize;
tDMA_TAG* pMem;
if ((!(ipu0ch.chcr.STR) || (cpuRegs.interrupt & (1 << DMAC_FROM_IPU))) || (ipu0ch.qwc == 0))
{
DevCon.Warning("How??");
return;
}
pxAssert(!(ipu0ch.chcr.TTE));
IPU_LOG("dmaIPU0 chcr = %lx, madr = %lx, qwc = %lx",
ipu0ch.chcr._u32, ipu0ch.madr, ipu0ch.qwc);
pxAssert(ipu0ch.chcr.MOD == NORMAL_MODE);
pMem = dmaGetAddr(ipu0ch.madr, true);
readsize = std::min(ipu0ch.qwc, (u16)ipuRegs.ctrl.OFC);
ipu_fifo.out.read(pMem, readsize);
ipu0ch.madr += readsize << 4;
ipu0ch.qwc -= readsize; // note: qwc is u16
if (dmacRegs.ctrl.STS == STS_fromIPU) // STS == fromIPU
{
dmacRegs.stadr.ADDR = ipu0ch.madr;
switch (dmacRegs.ctrl.STD)
{
case NO_STD:
break;
case STD_GIF: // GIF
//DevCon.Warning("GIFSTALL");
g_nDMATransfer.GIFSTALL = true;
break;
case STD_VIF1: // VIF
//DevCon.Warning("VIFSTALL");
g_nDMATransfer.VIFSTALL = true;
break;
case STD_SIF1:
// DevCon.Warning("SIFSTALL");
g_nDMATransfer.SIFSTALL = true;
break;
}
}
//Fixme ( voodoocycles ):
//This was IPU_INT_FROM(readsize*BIAS );
//This broke vids in Digital Devil Saga
//Note that interrupting based on totalsize is just guessing..
IPU_INT_FROM( readsize * BIAS );
if(ipuRegs.ctrl.IFC > 0) IPUProcessInterrupt();
//return readsize;
}
int IPU1dma()
{
int ipu1cycles = 0;
int totalqwc = 0;
//We need to make sure GIF has flushed before sending IPU data, it seems to REALLY screw FFX videos
if(ipu1dma.chcr.STR == false || IPU1Status.DMAMode == 2)
{
//We MUST stop the IPU from trying to fill the FIFO with more data if the DMA has been suspended
//if we don't, we risk causing the data to go out of sync with the fifo and we end up losing some!
//This is true for Dragons Quest 8 and probably others which suspend the DMA.
DevCon.Warning("IPU1 running when IPU1 DMA disabled! CHCR %x QWC %x", ipu1dma.chcr._u32, ipu1dma.qwc);
return 0;
}
IPU_LOG("IPU1 DMA Called QWC %x Finished %d In Progress %d tadr %x", ipu1dma.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress, ipu1dma.tadr);
switch(IPU1Status.DMAMode)
{
case DMA_MODE_NORMAL:
{
IPU_LOG("Processing Normal QWC left %x Finished %d In Progress %d", ipu1dma.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress);
if(IPU1Status.InProgress == true) totalqwc += IPU1chain();
}
break;
case DMA_MODE_CHAIN:
{
if(IPU1Status.InProgress == true) //No transfer is ready to go so we need to set one up
{
IPU_LOG("Processing Chain QWC left %x Finished %d In Progress %d", ipu1dma.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress);
totalqwc += IPU1chain();
//Set the TADR forward
}
if(IPU1Status.InProgress == false && IPU1Status.DMAFinished == false) //No transfer is ready to go so we need to set one up
{
tDMA_TAG* ptag = dmaGetAddr(ipu1dma.tadr, false); //Set memory pointer to TADR
if (!ipu1dma.transfer("IPU1", ptag))
{
return totalqwc;
}
ipu1cycles += 1; // Add 1 cycles from the QW read for the tag
IPU1Status.ChainMode = ptag->ID;
if(ipu1dma.chcr.TTE) DevCon.Warning("TTE?");
switch (IPU1Status.ChainMode)
{
case TAG_REFE: // refe
// do not change tadr
//ipu1dma.tadr += 16;
ipu1dma.tadr += 16;
ipu1dma.madr = ptag[1]._u32;
IPU_LOG("Tag should end on %x", ipu1dma.tadr);
break;
case TAG_CNT: // cnt
ipu1dma.tadr += 16;
ipu1dma.madr = ipu1dma.tadr;
IPU_LOG("Tag should end on %x", ipu1dma.madr + ipu1dma.qwc * 16);
//ipu1dma.tadr = ipu1dma.madr + (ipu1dma.qwc * 16);
// Set the taddr to the next tag
//IPU1Status.DMAFinished = false;
break;
case TAG_NEXT: // next
ipu1dma.madr = ipu1dma.tadr + 16;
IPU1Status.NextMem = ptag[1]._u32;
IPU_LOG("Tag should end on %x", IPU1Status.NextMem);
//IPU1Status.DMAFinished = false;
break;
case TAG_REF: // ref
ipu1dma.madr = ptag[1]._u32;
ipu1dma.tadr += 16;
IPU_LOG("Tag should end on %x", ipu1dma.tadr);
//IPU1Status.DMAFinished = false;
break;
case TAG_END: // end
// do not change tadr
ipu1dma.madr = ipu1dma.tadr + 16;
//ipu1dma.tadr += 16;
IPU_LOG("Tag should end on %x", ipu1dma.madr + ipu1dma.qwc * 16);
break;
default:
DevCon.Error("IPU ERROR: different transfer mode!, Please report to PCSX2 Team");
break;
}
//if(ipu1dma.qwc == 0) Console.Warning("Blank QWC!");
if(ipu1dma.qwc > 0) IPU1Status.InProgress = true;
IPU_LOG("dmaIPU1 dmaChain %8.8x_%8.8x size=%d, addr=%lx, fifosize=%x",
ptag[1]._u32, ptag[0]._u32, ipu1dma.qwc, ipu1dma.madr, 8 - g_BP.IFC);
if (ipu1dma.chcr.TIE && ptag->IRQ) //Tag Interrupt is set, so schedule the end/interrupt
IPU1Status.DMAFinished = true;
IPU_LOG("Processing Start Chain QWC left %x Finished %d In Progress %d", ipu1dma.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress);
totalqwc += IPU1chain();
//Set the TADR forward
}
}
break;
}
//Do this here to prevent double settings on Chain DMA's
if(totalqwc > 0 || ipu1dma.qwc == 0)
{
IPU_INT_TO(totalqwc * BIAS);
IPUProcessInterrupt();
}
else
{
cpuRegs.eCycle[4] = 0x9999;//IPU_INT_TO(2048);
}
IPU_LOG("Completed Call IPU1 DMA QWC Remaining %x Finished %d In Progress %d tadr %x", ipu1dma.qwc, IPU1Status.DMAFinished, IPU1Status.InProgress, ipu1dma.tadr);
return totalqwc;
}