/*******************************************************************************
* Function Name : In0_Process
* Description : Process the IN token on all default endpoint.
* Input : None.
* Output : None.
* Return : Post0_Process.
*******************************************************************************/
uint8_t In0_Process(void) {
uint32_t ControlState = pInformation->ControlState;
if((ControlState == IN_DATA) || (ControlState == LAST_IN_DATA)) {
DataStageIn();
/* ControlState may be changed outside the function */
ControlState = pInformation->ControlState;
}
else if(ControlState == WAIT_STATUS_IN) {
if((pInformation->USBbRequest == SET_ADDRESS) && (Type_Recipient == (STANDARD_REQUEST | DEVICE_RECIPIENT))) {
SetDeviceAddress(pInformation->USBwValue0);
pUser_Standard_Requests->User_SetDeviceAddress();
}
(*pProperty->Process_Status_IN)();
ControlState = STALLED;
}
else {
ControlState = STALLED;
}
pInformation->ControlState = ControlState;
return Post0_Process();
}
/*******************************************************************************
* Function Name : Out0_Process
* Description : Process the OUT token on all default endpoint.
* Input : None.
* Output : None.
* Return : Post0_Process.
*******************************************************************************/
uint8_t Out0_Process(void) {
uint32_t ControlState = pInformation->ControlState;
if((ControlState == IN_DATA) || (ControlState == LAST_IN_DATA)) {
/* host aborts the transfer before finish */
ControlState = STALLED;
} else if((ControlState == OUT_DATA) || (ControlState == LAST_OUT_DATA)) {
DataStageOut();
ControlState = pInformation->ControlState; /* may be changed outside the function */
}
else if(ControlState == WAIT_STATUS_OUT) {
(*pProperty->Process_Status_OUT)();
#ifndef STM32F10X_CL
ControlState = STALLED;
#endif /* STM32F10X_CL */
}
/* Unexpect state, STALL the endpoint */
else {
ControlState = STALLED;
}
pInformation->ControlState = ControlState;
return Post0_Process();
}
/*******************************************************************************
* 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;
uint16_t offset = 1;
pBuf.b = PMAAddr + (uint8_t *)(_GetEPRxAddr(ENDP0) * 2); /* *2 for 32 bits addr */
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();
}
/*******************************************************************************
* 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;
uint16_t offset = 1;
pBuf.b = USB_PMAADDR + (uint8_t *)(GetEPRxAddr(ENDP0) * 2); // *2 for 32 bits addr
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();
}
/*******************************************************************************
* 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();
}
/*******************************************************************************
* Function Name : Out0_Process
* Description : Process the OUT token on all default endpoint.
* Input : None.
* Output : None.
* Return : Post0_Process.
*******************************************************************************/
uint8_t Out0_Process(void) {
uint32_t ControlState = pInformation->ControlState;
if ((ControlState == IN_DATA) || (ControlState == LAST_IN_DATA)) {
// host aborts the transfer before finish
ControlState = STALLED;
} else if ((ControlState == OUT_DATA) || (ControlState == LAST_OUT_DATA)) {
DataStageOut();
ControlState = pInformation->ControlState; // may be changed outside the function
} else if (ControlState == WAIT_STATUS_OUT) {
(*pProperty->Process_Status_OUT)();
ControlState = STALLED;
} else {
// Unexpect state, STALL the endpoint
ControlState = STALLED;
}
pInformation->ControlState = ControlState;
return Post0_Process();
}
/*******************************************************************************
* Function Name : Out0_Process
* Description : Process the OUT token on all default endpoint.
* Input : None.
* Output : None.
* Return : Post0_Process.
*******************************************************************************/
u8 Out0_Process(void)
{
u32 ControlState = pInformation->ControlState;
#ifdef DEBUG_EP0
putchar('U');
#endif
#ifdef DEBUG_EP0
putchar('q');
#endif
if ((ControlState == OUT_DATA) || (ControlState == LAST_OUT_DATA))
{
DataStageOut();
ControlState = pInformation->ControlState; /* may be changed outside the function */
}
else if (ControlState == WAIT_STATUS_OUT)
{
(*pProperty->Process_Status_OUT)();
ControlState = STALLED;
}
else if ((ControlState == IN_DATA) || (ControlState == LAST_IN_DATA))
{
/* host aborts the transfer before finish */
ControlState = STALLED;
}
/* Unexpect state, STALL the endpoint */
else
{
ControlState = STALLED;
}
pInformation->ControlState = ControlState;
return Post0_Process();
}
