/**
* @brief USBD_StdEPReq
* Handle standard usb endpoint requests
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
USBD_StatusTypeDef USBD_StdEPReq (USBD_HandleTypeDef *pdev , USBD_SetupReqTypedef *req)
{
uint8_t ep_addr;
USBD_StatusTypeDef ret = USBD_OK;
USBD_EndpointTypeDef *pep;
ep_addr = LOBYTE(req->wIndex);
/* Check if it is a class request */
if ((req->bmRequest & 0x60) == 0x20)
{
pdev->pClass->Setup (pdev, req);
return USBD_OK;
}
switch (req->bRequest)
{
case USB_REQ_SET_FEATURE :
switch (pdev->dev_state)
{
case USBD_STATE_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
USBD_LL_StallEP(pdev , ep_addr);
}
break;
case USBD_STATE_CONFIGURED:
if (req->wValue == USB_FEATURE_EP_HALT)
{
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
USBD_LL_StallEP(pdev , ep_addr);
}
}
pdev->pClass->Setup (pdev, req);
USBD_CtlSendStatus(pdev);
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
case USB_REQ_CLEAR_FEATURE :
switch (pdev->dev_state)
{
case USBD_STATE_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
USBD_LL_StallEP(pdev , ep_addr);
}
break;
case USBD_STATE_CONFIGURED:
if (req->wValue == USB_FEATURE_EP_HALT)
{
if ((ep_addr & 0x7F) != 0x00)
{
USBD_LL_ClearStallEP(pdev , ep_addr);
pdev->pClass->Setup (pdev, req);
}
USBD_CtlSendStatus(pdev);
}
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
case USB_REQ_GET_STATUS:
switch (pdev->dev_state)
{
case USBD_STATE_ADDRESSED:
if ((ep_addr & 0x7F) != 0x00)
{
USBD_LL_StallEP(pdev , ep_addr);
}
break;
case USBD_STATE_CONFIGURED:
pep = ((ep_addr & 0x80) == 0x80) ? &pdev->ep_in[ep_addr & 0x7F]:\
&pdev->ep_out[ep_addr & 0x7F];
if(USBD_LL_IsStallEP(pdev, ep_addr))
{
pep->status = 0x0001;
}
else
{
pep->status = 0x0000;
}
USBD_CtlSendData (pdev,
(uint8_t *)&pep->status,
2);
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
default:
break;
}
return ret;
}
/**
* @brief USBD_StdEPReq
* Handle standard usb endpoint requests
* @param pdev: device instance
* @param req: usb request
* @retval status
*/
USBD_StatusTypeDef USBD_StdEPReq (USBD_HandleTypeDef *pdev , USBD_SetupReqTypedef *req)
{
uint8_t ep_addr;
USBD_StatusTypeDef ret = USBD_OK;
USBD_EndpointTypeDef *pep;
ep_addr = LOBYTE(req->wIndex);
switch (req->bRequest)
{
case USB_REQ_SET_FEATURE :
switch (pdev->dev_state)
{
case USBD_STATE_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
USBD_LL_StallEP(pdev , ep_addr);
}
break;
case USBD_STATE_CONFIGURED:
if (req->wValue == USB_FEATURE_EP_HALT)
{
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
USBD_LL_StallEP(pdev , ep_addr);
}
}
pdev->pEventSource->UsbEventSender.raiseEvent(stm32plus::usb::DeviceClassSdkSetupEvent(*req));
USBD_CtlSendStatus(pdev);
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
case USB_REQ_CLEAR_FEATURE :
switch (pdev->dev_state)
{
case USBD_STATE_ADDRESSED:
if ((ep_addr != 0x00) && (ep_addr != 0x80))
{
USBD_LL_StallEP(pdev , ep_addr);
}
break;
case USBD_STATE_CONFIGURED:
if (req->wValue == USB_FEATURE_EP_HALT)
{
if ((ep_addr & 0x7F) != 0x00)
{
USBD_LL_ClearStallEP(pdev , ep_addr);
pdev->pEventSource->UsbEventSender.raiseEvent(stm32plus::usb::DeviceClassSdkSetupEvent(*req));
}
USBD_CtlSendStatus(pdev);
}
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
case USB_REQ_GET_STATUS:
switch (pdev->dev_state)
{
case USBD_STATE_ADDRESSED:
if ((ep_addr & 0x7F) != 0x00)
{
USBD_LL_StallEP(pdev , ep_addr);
}
break;
case USBD_STATE_CONFIGURED:
pep = ((ep_addr & 0x80) == 0x80) ? &pdev->ep_in[ep_addr & 0x7F]:\
&pdev->ep_out[ep_addr & 0x7F];
if(USBD_LL_IsStallEP(pdev, ep_addr))
{
pep->status = 0x0001;
}
else
{
pep->status = 0x0000;
}
USBD_CtlSendData (pdev,
(uint8_t *)&pep->status,
2);
break;
default:
USBD_CtlError(pdev , req);
break;
}
break;
default:
break;
}
return ret;
}