void usb_isr(void)
{
ULONG i_st;
//IOWR(PIO_SEG7_B_BASE,0, 0xAAAAAAAA);
disable();
Hal4D13_LockDevice(0);
bD13flags.bits.At_IRQL1 = 1;
i_st = Hal4D13_ReadInterruptRegister();
if(i_st != 0)
{
//IOWR_ALTERA_AVALON_PIO_DATA(PIO_SEG7_A_BASE, i_st);
//USB_ISR_DEBUG(("[ISR]i_st=%lX\r\n", i_st));
if(i_st & D13REG_INTSRC_BUSRESET){ // 0x01
USB_ISR_DEBUG(("[USB ISR] Bus Reset\r\n"));
Isr_BusReset();
}else if(i_st & D13REG_INTSRC_SUSPEND){ // 0x04
USB_ISR_DEBUG(("[USB ISR] Suspend\r\n"));
Isr_SuspendChange();
}else if(i_st & D13REG_INTSRC_EOT){
USB_ISR_DEBUG(("[USB ISR] EOT (End of Tx)\r\n"));
Isr_DmaEot();
}else if(i_st & (D13REG_INTSRC_SOF|D13REG_INTSRC_PSEUDO_SOF)){
USB_ISR_DEBUG(("[USB ISR] SOF (start of frame)\r\n"));
Isr_SOF();
}else if(i_st & D13REG_INTSRC_SHORT_PACKET){
USB_ISR_DEBUG(("[USB ISR] short packet\r\n"));
Isr_SHORT_PACKET();
}else if(i_st & D13REG_INTSRC_RESUME){
USB_ISR_DEBUG(("[USB ISR] resume\n"));
Hal4D13_LockDevice(0);
}
else
{
USB_ISR_DEBUG(("[USB ISR] other, i_st = %lXh....resume\n", i_st));
if(i_st & D13REG_INTSRC_EP0OUT)
Isr_Ep00RxDone();
if(i_st & D13REG_INTSRC_EP0IN)
Isr_Ep00TxDone();
if(i_st & D13REG_INTSRC_EP01)
Isr_Ep01Done();
if(i_st & D13REG_INTSRC_EP02)
Isr_Ep02Done();
if(i_st & D13REG_INTSRC_EP03)
Isr_Ep03Done();
if(i_st & D13REG_INTSRC_EP04)
Isr_Ep04Done();
if(i_st & D13REG_INTSRC_EP05)
Isr_Ep05Done();
if(i_st & D13REG_INTSRC_EP06)
Isr_Ep06Done();
}
}
enable();
bD13flags.bits.At_IRQL1 = 0;
}
void Hal4D13_RegAccess(void)
{
USHORT c;
USHORT i;
ULONG l;
Hal4D13_ResetDevice();
printf("Reseting\n");
i = Hal4D13_ReadChipID();
printf(" ChipId = %hx\n",i);
i = Hal4D13_GetDataFromChipRam();
printf(" Chip RAM = %hx\n",i);
printf("Writing 0x55AA,");
Hal4D13_SetDataToChipRam(0x55AA);
i = Hal4D13_GetDataFromChipRam();
printf(" Chip RAM = %hx\n",i);
l = Hal4D13_GetIntEnable();
printf("Hal4D13_GetIntEnable = %lx\n",l);
l = Hal4D13_ReadInterruptRegister();
printf("Hal4D13_ReadInterruptRegister = %lx\n",l);
i = Hal4D13_GetDevConfig();
printf("Hal4D13_GetDevConfig = %hx\n",i);
i = Hal4D13_GetDMAConfig();
printf("Hal4D13_GetDMAConfig = %hx\n",i);
i = Hal4D13_GetDMACounter();
printf("Hal4D13_GetDMACounter = %hx\n",i);
i = Hal4D13_ReadCurrentFrameNumber();
printf("Hal4D13_ReadCurrentFrameNumber = %hx\n",i);
c = Hal4D13_GetMode();
printf("Hal4D13_GetMode = %x\n",c);
c = Hal4D13_GetEndpointStatusWOInteruptClear(EPINDEX4EP0_CONTROL_OUT);
printf("Hal4D13_GetEndpointStatus EP0 = %x\n",c);
c = Hal4D13_GetAddress();
// printf("Hal4D13_GetAddress = %x\n",c);
}
void Isr_Ep00TxDone(void)
{
short i = ControlData.wLength - ControlData.wCount;
UCHAR ep_last;
Hal4D13_ReadInterruptRegister();
ep_last = Hal4D13_GetEndpointStatusWInteruptClear(EPINDEX4EP0_CONTROL_IN); /* Clear interrupt flag */
switch (bD13flags.bits.DCP_state)
{
case USBFSM4DCP_HANDSHAKE:
break;
case USBFSM4DCP_DATAIN:
if( i >= EP0_PACKET_SIZE)
{
Hal4D13_WriteEndpoint(EPINDEX4EP0_CONTROL_IN,ControlData.Addr.pData + ControlData.wCount, EP0_PACKET_SIZE);
ControlData.wCount += EP0_PACKET_SIZE;
// State remains at USBFSM4DCP_DATAIN
}
else if( i != 0)
{
Hal4D13_WriteEndpoint(1, ControlData.Addr.pData + ControlData.wCount, i);
ControlData.wCount += i;
bD13flags.bits.DCP_state = USBFSM4DCP_HANDSHAKE;
}
else if (i == 0)
{
bD13flags.bits.DCP_state = USBFSM4DCP_HANDSHAKE;
Hal4D13_SingleTransmitEP0(0, 0);
}
break;
case USBFSM4DCP_REQUESTPROC: break;
case USBFSM4DCP_IDLE: break;
case USBFSM4DCP_SETUPPROC: break;
case USBFSM4DCP_STALL: break;
case USBFSM4DCP_DATAOUT: break;
default:
USB_ISR_DEBUG(("Fatal Error: Isr_Ep0TxDone Unexpected FSMState=%x\r\n",bD13flags.bits.DCP_state));
bD13flags.bits.DCP_state = USBFSM4DCP_STALL;
Hal4D13_StallEP0InControlRead();
break;
}
}
