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; } } }
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; } } }
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; }