+bool RNDIS_Device_IsPacketReceived(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) ||
+ (RNDISInterfaceInfo->State.CurrRNDISState != RNDIS_Data_Initialized))
+ {
+ return false;
+ }
+
+ Endpoint_SelectEndpoint(RNDISInterfaceInfo->Config.DataOUTEndpointNumber);
+ return Endpoint_IsOUTReceived();
+}
+
+uint8_t RNDIS_Device_ReadPacket(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
+ void* Buffer,
+ uint16_t* const PacketLength)
+{
+ if ((USB_DeviceState != DEVICE_STATE_Configured) ||
+ (RNDISInterfaceInfo->State.CurrRNDISState != RNDIS_Data_Initialized))
+ {
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+ }
+
+ Endpoint_SelectEndpoint(RNDISInterfaceInfo->Config.DataOUTEndpointNumber);
+
+ *PacketLength = 0;
+
+ if (!(Endpoint_IsOUTReceived()))
+ return ENDPOINT_RWSTREAM_NoError;
+
+ RNDIS_Packet_Message_t RNDISPacketHeader;
+ Endpoint_Read_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t), NULL);
+
+ if (RNDISPacketHeader.DataLength > ETHERNET_FRAME_SIZE_MAX)
+ {
+ Endpoint_StallTransaction();
+
+ return RNDIS_ERROR_LOGICAL_CMD_FAILED;
+ }
+
+ *PacketLength = (uint16_t)RNDISPacketHeader.DataLength;
+
+ Endpoint_Read_Stream_LE(Buffer, RNDISPacketHeader.DataLength, NULL);
+ Endpoint_ClearOUT();
+
+ return ENDPOINT_RWSTREAM_NoError;
+}
+
+uint8_t RNDIS_Device_SendPacket(USB_ClassInfo_RNDIS_Device_t* const RNDISInterfaceInfo,
+ void* Buffer,
+ const uint16_t PacketLength)
+{
+ uint8_t ErrorCode;
+
+ if ((USB_DeviceState != DEVICE_STATE_Configured) ||
+ (RNDISInterfaceInfo->State.CurrRNDISState != RNDIS_Data_Initialized))
+ {
+ return ENDPOINT_RWSTREAM_DeviceDisconnected;
+ }
+
+ Endpoint_SelectEndpoint(RNDISInterfaceInfo->Config.DataINEndpointNumber);
+
+ if ((ErrorCode = Endpoint_WaitUntilReady()) != ENDPOINT_READYWAIT_NoError)
+ return ErrorCode;
+
+ RNDIS_Packet_Message_t RNDISPacketHeader;
+
+ memset(&RNDISPacketHeader, 0, sizeof(RNDIS_Packet_Message_t));
+
+ RNDISPacketHeader.MessageType = REMOTE_NDIS_PACKET_MSG;
+ RNDISPacketHeader.MessageLength = (sizeof(RNDIS_Packet_Message_t) + PacketLength);
+ RNDISPacketHeader.DataOffset = (sizeof(RNDIS_Packet_Message_t) - sizeof(RNDIS_Message_Header_t));
+ RNDISPacketHeader.DataLength = PacketLength;
+
+ Endpoint_Write_Stream_LE(&RNDISPacketHeader, sizeof(RNDIS_Packet_Message_t), NULL);
+ Endpoint_Write_Stream_LE(Buffer, PacketLength, NULL);
+ Endpoint_ClearIN();
+
+ return ENDPOINT_RWSTREAM_NoError;
+}
+