/*******************************************************************************
* Function Name : DataStageIn.
* Description : Data stage of a Control Read Transfer.
* Input : None.
* Output : None.
* Return : None.
*******************************************************************************/
void DataStageIn(void) {
ENDPOINT_INFO* pEPinfo = &pInformation->Ctrl_Info;
uint32_t save_wLength = pEPinfo->Usb_wLength;
uint32_t ControlState = pInformation->ControlState;
uint8_t* DataBuffer;
uint32_t Length;
if((save_wLength == 0) && (ControlState == LAST_IN_DATA)) {
if(Data_Mul_MaxPacketSize == TRUE) {
/* No more data to send and empty packet */
Send0LengthData();
ControlState = LAST_IN_DATA;
Data_Mul_MaxPacketSize = FALSE;
} else {
/* No more data to send so STALL the TX Status*/
ControlState = WAIT_STATUS_OUT;
#ifdef STM32F10X_CL
PCD_EP_Read(ENDP0, 0, 0);
#endif /* STM32F10X_CL */
#ifndef STM32F10X_CL
vSetEPTxStatus(EP_TX_STALL);
#endif /* STM32F10X_CL */
}
goto Expect_Status_Out;
}
Length = pEPinfo->PacketSize;
ControlState = (save_wLength <= Length) ? LAST_IN_DATA : IN_DATA;
if(Length > save_wLength) {
Length = save_wLength;
}
DataBuffer = (*pEPinfo->CopyData)(Length);
#ifdef STM32F10X_CL
PCD_EP_Write(ENDP0, DataBuffer, Length);
#else
UserToPMABufferCopy(DataBuffer, GetEPTxAddr(ENDP0), Length);
#endif /* STM32F10X_CL */
SetEPTxCount(ENDP0, Length);
pEPinfo->Usb_wLength -= Length;
pEPinfo->Usb_wOffset += Length;
vSetEPTxStatus(EP_TX_VALID);
USB_StatusOut(); /* Expect the host to abort the data IN stage */
Expect_Status_Out:
pInformation->ControlState = ControlState;
}
/*******************************************************************************
* Function Name : USB_SIL_Write
* Description : Write a buffer of data to a selected endpoint.
* Input : - bEpAddr: The address of the non control endpoint.
* - pBufferPointer: The pointer to the buffer of data to be written
* to the endpoint.
* - wBufferSize: Number of data to be written (in bytes).
* Output : None.
* Return : Status.
*******************************************************************************/
uint32_t USB_SIL_Write(uint8_t bEpAddr, uint8_t* pBufferPointer, uint32_t wBufferSize)
{
#ifndef STM32F10X_CL
/* Use the memory interface function to write to the selected endpoint */
UserToPMABufferCopy(pBufferPointer, GetEPTxAddr(bEpAddr & 0x7F), wBufferSize);
/* Update the data length in the control register */
SetEPTxCount((bEpAddr & 0x7F), wBufferSize);
#else
/* Use the PCD interface layer function to write to the selected endpoint */
PCD_EP_Write (bEpAddr, pBufferPointer, wBufferSize);
#endif /* STM32F10X_CL */
return 0;
}