public SMAP_State(DEV9_State parDev9)
{
dev9 = parDev9;
//Init SMAP
int rxbi;
for (rxbi = 0; rxbi < (DEV9Header.SMAP_BD_SIZE / 8); rxbi++)
{
SMAP_bd pbd;
pbd = new SMAP_bd(dev9.dev9R, (int)((DEV9Header.SMAP_BD_RX_BASE & 0xffff) + (SMAP_bd.GetSize() * rxbi)));
pbd.CtrlStat = (UInt16)DEV9Header.SMAP_BD_RX_EMPTY;
pbd.Length = 0;
}
adapter = new AdapterLoader(this, dev9);
}
public void RxProcess(ref NetPacket pk)
{
if (!RxFifoCanRx())
{
Log_Error("ERROR : !rx_fifo_can_rx at rx_process");
return;
}
//smap_bd_t* pbd = ((smap_bd_t*)&dev9.dev9R[SMAP_BD_RX_BASE & 0xffff]) + dev9.rxbdi;
int soff = (int)((DEV9Header.SMAP_BD_RX_BASE & 0xffff) + dev9.rxbdi * SMAP_bd.GetSize());
SMAP_bd pbd = new SMAP_bd(dev9.dev9R, soff);
int bytes = (pk.size + 3) & (~3);
if (!((pbd.CtrlStat & DEV9Header.SMAP_BD_RX_EMPTY) != 0))
{
Log_Info("(!(pbd->ctrl_stat & SMAP_BD_RX_EMPTY))");
Log_Info("Discarding " + bytes + " bytes (RX" + dev9.rxbdi + " not ready)");
return;
}
int pstart = (dev9.rxFifoWrPtr) & 16383;
int i = 0;
while (i < bytes)
{
dev9.Dev9RxFifoWrite(pk.buffer[i++]);
dev9.rxFifoWrPtr &= 16383;
}
lock (resetSentry)
{
//increase RXBD
dev9.rxbdi++;
dev9.rxbdi &= ((DEV9Header.SMAP_BD_SIZE / 8u) - 1u);
//Fill the BD with info !
pbd.Length = (ushort)pk.size;
pbd.Pointer = (ushort)(0x4000 + pstart);
unchecked //Allow -int to uint
{
pbd.CtrlStat &= (ushort)~DEV9Header.SMAP_BD_RX_EMPTY;
}
//increase frame count
lock (counterSentry)
{
byte framecount = dev9.Dev9Ru8((int)DEV9Header.SMAP_R_RXFIFO_FRAME_CNT);
framecount++;
dev9.Dev9Wu8((int)DEV9Header.SMAP_R_RXFIFO_FRAME_CNT, framecount);
}
}
//spams// emu_printf("Got packet, %d bytes (%d fifo)\n", pk->size,bytes);
fireIntR = true;
//DEV9._DEV9irq(DEV9Header.SMAP_INTR_RXEND, 0);//now ? or when the fifo is full ? i guess now atm
//note that this _is_ wrong since the IOP interrupt system is not thread safe.. but nothing i can do about that
}
//tx_process
private void TxProcess()
{
//Error.WriteLine("TX");
//we loop based on count ? or just *use* it ?
UInt32 cnt = dev9.Dev9Ru8((int)DEV9Header.SMAP_R_TXFIFO_FRAME_CNT);
//spams// printf("tx_process : %d cnt frames !\n",cnt);
NetPacket pk = new NetPacket();
int fc = 0;
for (fc = 0; fc < cnt; fc++)
{
//smap_bd_t *pbd= ((smap_bd_t *)&dev9.dev9R[SMAP_BD_TX_BASE & 0xffff])+dev9.txbdi;
SMAP_bd pbd;
pbd = new SMAP_bd(dev9.dev9R, (int)((DEV9Header.SMAP_BD_TX_BASE & 0xffff) + (SMAP_bd.GetSize() * dev9.txbdi)));
if (!((pbd.CtrlStat & DEV9Header.SMAP_BD_TX_READY) != 0))
{
Log_Error("ERROR : !pbd->ctrl_stat&SMAP_BD_TX_READY\n");
break;
}
if ((pbd.Length & 3) != 0)
{
//spams// emu_printf("WARN : pbd->length not alligned %d\n",pbd->length);
}
if (pbd.Length > 1514)
{
Log_Error("ERROR : Trying to send packet too big.\n");
}
else
{
UInt32 _base = (UInt32)((pbd.Pointer - 0x1000) & 16383);
Log_Verb("Sending Packet from base " + _base.ToString("X") + ", size " + pbd.Length);
//The 1st packet we send should be base 0, size 1514
//spams// emu_printf("Sending Packet from base %x, size %d\n", base, pbd->length);
pk.size = pbd.Length;
if (!(pbd.Pointer >= 0x1000))
{
Log_Error("ERROR: odd , !pbd->pointer>0x1000 | 0x" + pbd.Pointer.ToString("X") + " " + pbd.Length.ToString());
}
if (_base + pbd.Length > 16384)
{
UInt32 was = 16384 - _base;
Utils.memcpy(ref pk.buffer, 0, dev9.txFifo, (int)_base, (int)was);
Utils.memcpy(ref pk.buffer, (int)was, dev9.txFifo, 0, (int)(pbd.Length - was)); //I thingk this was a bug in the original plugin
Log_Verb("Warped read, was=" + was + ", sz=" + pbd.Length + ", sz-was=" + (pbd.Length - was));
}
else
{
Utils.memcpy(ref pk.buffer, 0, dev9.txFifo, (int)_base, (int)pbd.Length);
}
adapter.net.TxPut(ref pk);
}
unchecked
{
pbd.CtrlStat &= (UInt16)(~DEV9Header.SMAP_BD_TX_READY);
}
//increase TXBD
dev9.txbdi++;
dev9.txbdi &= (DEV9Header.SMAP_BD_SIZE / 8) - 1;
//decrease frame count -- this is not thread safe
//dev9Ru8(SMAP_R_TXFIFO_FRAME_CNT)--;
dev9.Dev9Wu8((int)DEV9Header.SMAP_R_TXFIFO_FRAME_CNT, (byte)(dev9.Dev9Ru8((int)DEV9Header.SMAP_R_TXFIFO_FRAME_CNT) - 1));
}
//spams// emu_printf("processed %d frames, %d count, cnt = %d\n",fc,dev9Ru8(SMAP_R_TXFIFO_FRAME_CNT),cnt);
//if some error/early exit signal TXDNV
if (fc != cnt || cnt == 0)
{
Log_Error("WARN : (fc!=cnt || cnt==0) but packet send request was made oO..");
dev9.DEV9irq(DEV9Header.SMAP_INTR_TXDNV, 0);
}
//if we actualy send something send TXEND
if (fc != 0)
dev9.DEV9irq(DEV9Header.SMAP_INTR_TXEND, 100);//now ? or when the fifo is empty ? i guess now atm
}