/*******************************************************************************
* Function Name : Standard_GetStatus.
* Description : Copy the device request data to "StatusInfo buffer".
* Input : - Length - How many bytes are needed.
* Output : None.
* Return : Return 0, if the request is at end of data block,
* or is invalid when "Length" is 0.
*******************************************************************************/
u8 *Standard_GetStatus(u16 Length)
{
if (Length == 0)
{
pInformation->Ctrl_Info.Usb_wLength = 2;
return 0;
}
StatusInfo.w = 0;
/* Reset Status Information */
if (Type_Recipient == (STANDARD_REQUEST | DEVICE_RECIPIENT))
{
u8 Feature = pInformation->Current_Feature; /*Get Device Status */
if (ValBit(Feature, 5)) /* Remote Wakeup enabled */
{
SetBit(StatusInfo0, 1);
}
if (ValBit(Feature, 6)) /* Bus-powered */
{
ClrBit(StatusInfo0, 0);
}
else
{
SetBit(StatusInfo0, 0); /* Self-powered */
}
}
else if (Type_Recipient == (STANDARD_REQUEST | INTERFACE_RECIPIENT))
{ /*Interface Status*/
return (u8 *)&StatusInfo;
}
else if (Type_Recipient == (STANDARD_REQUEST | ENDPOINT_RECIPIENT))
{ /*Get EndPoint Status*/
u8 Related_Endpoint;
u8 wIndex0 = pInformation->USBwIndex0;
Related_Endpoint = (wIndex0 & 0x0f);
if (ValBit(wIndex0, 7))
{ /* IN endpoint */
if (_GetTxStallStatus(Related_Endpoint))
{
SetBit(StatusInfo0, 0); /* IN Endpoint stalled */
}
}
else
{ /* OUT endpoint */
if (_GetRxStallStatus(Related_Endpoint))
{
SetBit(StatusInfo0, 0); /* OUT Endpoint stalled */
}
}
}
else
return NULL;
pUser_Standard_Requests->User_GetStatus();
return (u8 *)&StatusInfo;
}
/*******************************************************************************
* Function Name : Standard_ClearFeature.
* Description : Clear or disable a specific feature.
* Input : None.
* Output : None.
* Return : - Return USB_SUCCESS, if the request is performed.
* - Return USB_UNSUPPORT, if the request is invalid.
*******************************************************************************/
RESULT Standard_ClearFeature(void) {
uint32_t Type_Rec = Type_Recipient;
uint32_t Status;
if(Type_Rec == (STANDARD_REQUEST | DEVICE_RECIPIENT)) { /*Device Clear Feature*/
ClrBit(pInformation->Current_Feature, 5);
return USB_SUCCESS;
} else if(Type_Rec == (STANDARD_REQUEST | ENDPOINT_RECIPIENT)) { /*EndPoint Clear Feature*/
DEVICE* pDev;
uint32_t Related_Endpoint;
uint32_t wIndex0;
uint32_t rEP;
if((pInformation->USBwValue != ENDPOINT_STALL) || (pInformation->USBwIndex1 != 0)) {
return USB_UNSUPPORT;
}
pDev = &Device_Table;
wIndex0 = pInformation->USBwIndex0;
rEP = wIndex0 & ~0x80;
Related_Endpoint = ENDP0 + rEP;
if(ValBit(pInformation->USBwIndex0, 7)) {
/*Get Status of endpoint & stall the request if the related_ENdpoint
is Disabled*/
Status = _GetEPTxStatus(Related_Endpoint);
} else {
Status = _GetEPRxStatus(Related_Endpoint);
}
if((rEP >= pDev->Total_Endpoint) || (Status == 0) || (pInformation->Current_Configuration == 0)) {
return USB_UNSUPPORT;
}
if(wIndex0 & 0x80) {
/* IN endpoint */
if(_GetTxStallStatus(Related_Endpoint)) {
#ifndef STM32F10X_CL
ClearDTOG_TX(Related_Endpoint);
#endif /* STM32F10X_CL */
SetEPTxStatus(Related_Endpoint, EP_TX_VALID);
}
} else {
/* OUT endpoint */
if(_GetRxStallStatus(Related_Endpoint)) {
if(Related_Endpoint == ENDP0) {
/* After clear the STALL, enable the default endpoint receiver */
SetEPRxCount(Related_Endpoint, Device_Property.MaxPacketSize);
_SetEPRxStatus(Related_Endpoint, EP_RX_VALID);
} else {
#ifndef STM32F10X_CL
ClearDTOG_RX(Related_Endpoint);
#endif /* STM32F10X_CL */
_SetEPRxStatus(Related_Endpoint, EP_RX_VALID);
}
}
}
pUser_Standard_Requests->User_ClearFeature();
return USB_SUCCESS;
}
return USB_UNSUPPORT;
}