/*******************************************************************************
* Function Name : Post0_Process
* Description : Stall the Endpoint 0 in case of error.
* Input : None.
* Output : None.
* Return : - 0 if the control State is in PAUSE
* - 1 if not.
*******************************************************************************/
uint8_t Post0_Process(void) {
#ifdef STM32F10X_CL
USB_OTG_EP* ep;
#endif /* STM32F10X_CL */
SetEPRxCount(ENDP0, Device_Property.MaxPacketSize);
if(pInformation->ControlState == STALLED) {
vSetEPRxStatus(EP_RX_STALL);
vSetEPTxStatus(EP_TX_STALL);
}
#ifdef STM32F10X_CL
else if((pInformation->ControlState == OUT_DATA) || (pInformation->ControlState == WAIT_STATUS_OUT)) {
ep = PCD_GetInEP(0);
ep->is_in = 0;
OTGD_FS_EP0StartXfer(ep);
vSetEPTxStatus(EP_TX_VALID);
}
else if((pInformation->ControlState == IN_DATA) || (pInformation->ControlState == WAIT_STATUS_IN)) {
ep = PCD_GetInEP(0);
ep->is_in = 1;
OTGD_FS_EP0StartXfer(ep);
}
#endif /* STM32F10X_CL */
return (pInformation->ControlState == PAUSE);
}
/*******************************************************************************
* Function Name : USBF_EP_Write
* Description : Read data from Fifo
* Input : ep
* Output : None
* Return : status
*******************************************************************************/
uint32_t PCD_EP_Write (uint8_t ep_addr, uint8_t *pbuf, uint32_t buf_len)
{
USB_OTG_EP *ep;
ep = PCD_GetInEP(ep_addr & 0x7f);
/* assign data to EP structure buffer */
ep->xfer_buff = pbuf;
/* Setup and start the Transfer */
ep->xfer_count = 0;
ep->xfer_len = buf_len;
ep->is_in = 1;
ep->num = ep_addr & 0x7F;
if ( ep->num == 0 )
{
OTGD_FS_EP0StartXfer(ep);
}
else
{
OTGD_FS_EPStartXfer( ep );
}
return 0;
}
/*******************************************************************************
* Function Name : PCD_EP_Read
* Description : Read data from Fifo
* Input : Endpoint address.
* Output : None
* Return : status
*******************************************************************************/
uint32_t PCD_EP_Read (uint8_t ep_addr, uint8_t *pbuf, uint32_t buf_len)
{
USB_OTG_EP *ep;
uint32_t i = 0;
ep = PCD_GetOutEP(ep_addr & 0x7F);
/* copy received data into application buffer */
for (i = 0 ; i < buf_len ; i++)
{
pbuf[i] = ep->xfer_buff[i];
}
/*setup and start the Xfer */
ep->xfer_buff = pbuf;
ep->xfer_len = buf_len;
ep->xfer_count = 0;
ep->is_in = 0;
ep->num = ep_addr & 0x7F;
if ( ep->num == 0 )
{
OTGD_FS_EP0StartXfer(ep);
}
else
{
OTGD_FS_EPStartXfer( ep );
}
return 0;
}
/*******************************************************************************
* Function Name : Setup0_Process
* Description : Get the device request data and dispatch to individual process.
* Input : None.
* Output : None.
* Return : Post0_Process.
*******************************************************************************/
uint8_t Setup0_Process(void)
{
union
{
uint8_t* b;
uint16_t* w;
} pBuf;
#ifdef STM32F10X_CL
USB_OTG_EP *ep;
uint16_t offset = 0;
ep = PCD_GetOutEP(ENDP0);
pBuf.b = ep->xfer_buff;
OTGD_FS_EP0StartXfer(ep);
#else
uint16_t offset = 1;
pBuf.b = PMAAddr + (uint8_t *)(_GetEPRxAddr(ENDP0) * 2); /* *2 for 32 bits addr */
#endif /* STM32F10X_CL */
if (pInformation->ControlState != PAUSE)
{
pInformation->USBbmRequestType = *pBuf.b++; /* bmRequestType */
pInformation->USBbRequest = *pBuf.b++; /* bRequest */
pBuf.w += offset; /* word not accessed because of 32 bits addressing */
pInformation->USBwValue = ByteSwap(*pBuf.w++); /* wValue */
pBuf.w += offset; /* word not accessed because of 32 bits addressing */
pInformation->USBwIndex = ByteSwap(*pBuf.w++); /* wIndex */
pBuf.w += offset; /* word not accessed because of 32 bits addressing */
pInformation->USBwLength = *pBuf.w; /* wLength */
}
pInformation->ControlState = SETTING_UP;
if (pInformation->USBwLength == 0)
{
/* Setup with no data stage */
NoData_Setup0();
}
else
{
/* Setup with data stage */
Data_Setup0();
}
return Post0_Process();
}