uint8_t Pipe_Read_Stream_BE(void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, uint8_t (* const Callback)(void)
#endif
)
{
uint8_t* DataStream = (uint8_t*)(Buffer + Length - 1);
uint8_t ErrorCode;
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
while (Length--)
{
if (!(Pipe_ReadWriteAllowed()))
{
Pipe_ClearCurrentBank();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return PIPE_RWSTREAM_ERROR_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
*(DataStream--) = Pipe_Read_Byte();
}
return PIPE_RWSTREAM_ERROR_NoError;
}
uint8_t Pipe_Read_Stream_LE(void* Buffer, uint16_t Length
#if !defined(NO_STREAM_CALLBACKS)
, uint8_t (* const Callback)(void)
#endif
)
{
uint8_t* DataStream = (uint8_t*)Buffer;
uint8_t ErrorCode;
while (Length)
{
if (!(Pipe_ReadWriteAllowed()))
{
Pipe_ClearCurrentBank();
#if !defined(NO_STREAM_CALLBACKS)
if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
return ENDPOINT_RWSTREAM_ERROR_CallbackAborted;
#endif
if ((ErrorCode = Pipe_WaitUntilReady()))
return ErrorCode;
}
*(DataStream++) = Pipe_Read_Byte();
Length--;
if (!(USB_IsConnected))
return PIPE_RWSTREAM_ERROR_DeviceDisconnected;
else if (Pipe_IsStalled())
return PIPE_RWSTREAM_ERROR_PipeStalled;
}
return PIPE_RWSTREAM_ERROR_NoError;
}
static int CDC_getchar(FILE *stream)
{
int c;
Pipe_SelectPipe(CDC_DATAPIPE_IN);
for (;;)
{
if (Pipe_WaitUntilReady())
return -1;
if (!(Pipe_BytesInPipe()))
{
Pipe_ClearOUT();
}
else
{
c = Pipe_Read_Byte();
break;
}
}
return c;
}
uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
{
uint8_t* HeaderStream = (uint8_t*)&USB_ControlRequest;
uint8_t* DataStream = (uint8_t*)BufferPtr;
bool BusSuspended = USB_Host_IsBusSuspended();
uint8_t ReturnStatus = HOST_SENDCONTROL_Successful;
uint16_t DataLen = USB_ControlRequest.wLength;
USB_Host_ResumeBus();
if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
goto End_Of_Control_Send;
Pipe_SetPipeToken(PIPE_TOKEN_SETUP);
Pipe_ClearErrorFlags();
Pipe_Unfreeze();
for (uint8_t HeaderByte = 0; HeaderByte < sizeof(USB_Request_Header_t); HeaderByte++)
Pipe_Write_Byte(*(HeaderStream++));
Pipe_ClearSETUP();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_SetupSent)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
Pipe_Freeze();
if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
goto End_Of_Control_Send;
if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_DIRECTION) == REQDIR_DEVICETOHOST)
{
Pipe_SetPipeToken(PIPE_TOKEN_IN);
if (DataStream != NULL)
{
while (DataLen)
{
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
if (!(Pipe_BytesInPipe()))
DataLen = 0;
while (Pipe_BytesInPipe() && DataLen)
{
*(DataStream++) = Pipe_Read_Byte();
DataLen--;
}
Pipe_Freeze();
Pipe_ClearIN();
}
}
Pipe_SetPipeToken(PIPE_TOKEN_OUT);
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
Pipe_ClearOUT();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
}
else
{
if (DataStream != NULL)
{
Pipe_SetPipeToken(PIPE_TOKEN_OUT);
Pipe_Unfreeze();
while (DataLen)
{
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
while (DataLen && (Pipe_BytesInPipe() < USB_ControlPipeSize))
{
Pipe_Write_Byte(*(DataStream++));
DataLen--;
}
Pipe_ClearOUT();
}
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
Pipe_Freeze();
}
Pipe_SetPipeToken(PIPE_TOKEN_IN);
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
goto End_Of_Control_Send;
Pipe_ClearIN();
}
End_Of_Control_Send:
Pipe_Freeze();
if (BusSuspended)
USB_Host_SuspendBus();
Pipe_ResetPipe(PIPE_CONTROLPIPE);
return ReturnStatus;
}
