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 19namespace Hdc { 20class HdcUSBBase { 21public: 22 HdcUSBBase(const bool serverOrDaemonIn, void *ptrMainBase); 23 virtual ~HdcUSBBase(); 24 virtual bool ReadyForWorkThread(HSession hSession); 25 virtual void CancelUsbIo(HSession hSession) {}; 26 int SendUSBBlock(HSession hSession, uint8_t *data, const int length); 27 28protected: 29 virtual int SendUSBRaw(HSession hSession, uint8_t *data, const int length) 30 { 31 return 0; 32 } 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 vector<uint8_t> BuildPacketHeader(uint32_t sessionId, uint8_t option, uint32_t dataSize); 41 42 void *clsMainBase; 43 bool modRunning; 44 bool serverOrDaemon; 45 const string USB_PACKET_FLAG = "UB"; // must 2bytes 46 47private: 48 static void ReadUSB(uv_stream_t *stream, ssize_t nread, const uv_buf_t *buf); 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