uint8_t Endpoint_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 (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN) { if (Endpoint_IsINReady()) return ENDPOINT_READYWAIT_NoError; } else { if (Endpoint_IsOUTReceived()) return ENDPOINT_READYWAIT_NoError; } if (USB_DeviceState == DEVICE_STATE_Unattached) return ENDPOINT_READYWAIT_DeviceDisconnected; else if (Endpoint_IsStalled()) return ENDPOINT_READYWAIT_EndpointStalled; if (USB_INT_HasOccurred(USB_INT_SOFI)) { USB_INT_Clear(USB_INT_SOFI); if (!(TimeoutMSRem--)) return ENDPOINT_READYWAIT_Timeout; } } }
uint8_t Endpoint_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_Device_GetFrameNumber(); for (;;) { if (Endpoint_GetEndpointDirection() == ENDPOINT_DIR_IN) { if (Endpoint_IsINReady()) return ENDPOINT_READYWAIT_NoError; } else { if (Endpoint_IsOUTReceived()) return ENDPOINT_READYWAIT_NoError; } uint8_t USB_DeviceState_LCL = USB_DeviceState; if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) return ENDPOINT_READYWAIT_DeviceDisconnected; else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) return ENDPOINT_READYWAIT_BusSuspended; else if (Endpoint_IsStalled()) return ENDPOINT_READYWAIT_EndpointStalled; uint16_t CurrentFrameNumber = USB_Device_GetFrameNumber(); if (CurrentFrameNumber != PreviousFrameNumber) { PreviousFrameNumber = CurrentFrameNumber; if (!(TimeoutMSRem--)) return ENDPOINT_READYWAIT_Timeout; } } }