示例#1
0
uint8_t Pipe_WaitUntilReady(void)
{
	#if (USB_STREAM_TIMEOUT_MS < 0xFF)
	uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;	
	#else
	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
	#endif
	
	for (;;)
	{
		if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
		{
			if (Pipe_IsINReceived())
			  return PIPE_READYWAIT_NoError;
		}
		else
		{
			if (Pipe_IsOUTReady())
			  return PIPE_READYWAIT_NoError;		
		}

		if (Pipe_IsStalled())
		  return PIPE_READYWAIT_PipeStalled;
		else if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_READYWAIT_DeviceDisconnected;
			  
		if (USB_INT_HasOccurred(USB_INT_HSOFI))
		{
			USB_INT_Clear(USB_INT_HSOFI);

			if (!(TimeoutMSRem--))
			  return PIPE_READYWAIT_Timeout;
		}
	}
}
示例#2
0
文件: Pipe_AVR8.c 项目: 40000ft/lufa
uint8_t Pipe_WaitUntilReady(void)
{
	#if (USB_STREAM_TIMEOUT_MS < 0xFF)
	uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
	#else
	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
	#endif

	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();

	for (;;)
	{
		if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
		{
			if (Pipe_IsINReceived())
			  return PIPE_READYWAIT_NoError;
		}
		else
		{
			if (Pipe_IsOUTReady())
			  return PIPE_READYWAIT_NoError;
		}

		if (Pipe_IsStalled())
		  return PIPE_READYWAIT_PipeStalled;
		else if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_READYWAIT_DeviceDisconnected;

		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();

		if (CurrentFrameNumber != PreviousFrameNumber)
		{
			PreviousFrameNumber = CurrentFrameNumber;

			if (!(TimeoutMSRem--))
			  return PIPE_READYWAIT_Timeout;
		}
	}
}
示例#3
0
文件: Pipe.c 项目: C3MA/hexabus
bool Pipe_IsEndpointBound(const uint8_t EndpointAddress)
{
	uint8_t PrevPipeNumber = Pipe_GetCurrentPipe();

	for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
	{
		Pipe_SelectPipe(PNum);

		if (!(Pipe_IsConfigured()))
		  continue;

		uint8_t PipeToken        = Pipe_GetPipeToken();
		bool    PipeTokenCorrect = true;

		if (PipeToken != PIPE_TOKEN_SETUP)
		  PipeTokenCorrect = (PipeToken == ((EndpointAddress & PIPE_EPDIR_MASK) ? PIPE_TOKEN_IN : PIPE_TOKEN_OUT));

		if (PipeTokenCorrect && (Pipe_BoundEndpointNumber() == (EndpointAddress & PIPE_EPNUM_MASK)))
		  return true;
	}

	Pipe_SelectPipe(PrevPipeNumber);
	return false;
}