1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef HDC_USB_H 16 #define HDC_USB_H 17 #include "common.h" 18 19 namespace Hdc { 20 class HdcUSBBase { 21 public: 22 HdcUSBBase(const bool serverOrDaemonIn, void *ptrMainBase); 23 virtual ~HdcUSBBase(); 24 virtual bool ReadyForWorkThread(HSession hSession); CancelUsbIo(HSession hSession)25 virtual void CancelUsbIo(HSession hSession) {}; 26 int SendUSBBlock(HSession hSession, uint8_t *data, const int length); 27 28 protected: SendUSBRaw(HSession hSession,uint8_t * data,const int length)29 virtual int SendUSBRaw(HSession hSession, uint8_t *data, const int length) 30 { 31 return 0; 32 } UsbToHdcProtocol(uv_stream_t * stream,uint8_t * appendData,int dataSize)33 virtual int UsbToHdcProtocol(uv_stream_t *stream, uint8_t *appendData, int dataSize) 34 { 35 return 0; 36 }; 37 int SendToHdcStream(HSession hSession, uv_stream_t *stream, uint8_t *appendData, int dataSize); 38 int GetSafeUsbBlockSize(uint16_t wMaxPacketSizeSend); 39 bool IsUsbPacketHeader(uint8_t *ioBuf, int ioBytes); 40 41 void *clsMainBase; 42 bool modRunning; 43 bool serverOrDaemon; 44 const string USB_PACKET_FLAG = "UB"; // must 2bytes 45 46 private: 47 static void ReadUSB(uv_stream_t *stream, ssize_t nread, const uv_buf_t *buf); 48 vector<uint8_t> BuildPacketHeader(uint32_t sessionId, uint8_t option, uint32_t dataSize); 49 int CheckPacketOption(HSession hSession, uint8_t *appendData, int dataSize); 50 void PreSendUsbSoftReset(HSession hSession, uint32_t sessionIdOld); 51 }; 52 } // namespace Hdc 53 54 #endif