基于qt的ymodem协议上位机实现

/** ****************************************************************************** * @file Ymodem.cpp * @author XinLi * @version v1.0 * @date 21-January-2018 * @brief Ymodem protocol module source file. ****************************************************************************** * @attention * * <h2><center>Copyright &copy; 2018 XinLi</center></h2> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. * ****************************************************************************** */ /* Header includes -----------------------------------------------------------*/ #include "Ymodem.h" #include <string.h> /* Macro definitions ---------------------------------------------------------*/ /* Type definitions ----------------------------------------------------------*/ /* Variable declarations -----------------------------------------------------*/ /* Variable definitions ------------------------------------------------------*/ /* Function declarations -----------------------------------------------------*/ /* Function definitions ------------------------------------------------------*/ /** * @brief Ymodem constructor. * @param [in] timeDivide: The fractional factor of the time the ymodem is called. * @param [in] timeMax: The maximum time when calling the ymodem. * @param [in] errorMax: The maximum error count when calling the ymodem. * @note The longest waiting time = call time / (@timeDivide + 1) * (@timeMax + 1). * @return None. */ Ymodem::Ymodem(uint32_t timeDivide, uint32_t timeMax, uint32_t errorMax) { this->timeDivide = timeDivide; this->timeMax = timeMax; this->errorMax = errorMax; this->timeCount = 0; this->errorCount = 0; this->dataCount = 0; this->code = CodeNone; this->stage = StageNone; } /** * @brief Set the fractional factor of the time the ymodem is called. * @param [in] timeDivide: The fractional factor of the time the ymodem is called. * @return None. */ void Ymodem::setTimeDivide(uint32_t timeDivide) { this->timeDivide = timeDivide; } /** * @brief Get the fractional factor of the time the ymodem is called. * @param None. * @return The fractional factor of the time the ymodem is called. */ uint32_t Ymodem::getTimeDivide() { return timeDivide; } /** * @brief Set the maximum time when calling the ymodem. * @param [in] timeMax: The maximum time when calling the ymodem. * @return None. */ void Ymodem::setTimeMax(uint32_t timeMax) { this->timeMax = timeMax; } /** * @brief Get the maximum time when calling the ymodem. * @param None. * @return The maximum time when calling the ymodem. */ uint32_t Ymodem::getTimeMax() { return timeMax; } /** * @brief Set the maximum error count when calling the ymodem. * @param [in] errorMax: The maximum error count when calling the ymodem. * @return None. */ void Ymodem::setErrorMax(uint32_t errorMax) { this->errorMax = errorMax; } /** * @brief Get the maximum error count when calling the ymodem. * @param None. * @return The maximum error count when calling the ymodem. */ uint32_t Ymodem::getErrorMax() { return errorMax; } /** * @brief Ymodem receive. * @param None. * @return None. */ void Ymodem::receive() { switch(stage) { case StageNone: { receiveStageNone(); break; } case StageEstablishing: { receiveStageEstablishing(); break; } case StageEstablished: { receiveStageEstablished(); break; } case StageTransmitting: { receiveStageTransmitting(); break; } case StageFinishing: { receiveStageFinishing(); break; } default: { receiveStageFinished(); } } } /** * @brief Ymodem transmit. * @param None. * @return None. */ void Ymodem::transmit() { switch(stage) { case StageNone: { transmitStageNone(); break; } case StageEstablishing: { transmitStageEstablishing(); break; } case StageEstablished: { transmitStageEstablished(); break; } case StageTransmitting: { transmitStageTransmitting(); break; } case StageFinishing: { transmitStageFinishing(); break; } default: { transmitStageFinished(); } } } /** * @brief Ymodem abort. * @param None. * @return None. */ void Ymodem::abort() { timeCount = 0; errorCount = 0; dataCount = 0; code = CodeNone; stage = StageNone; for(txLength = 0; txLength < YMODEM_CODE_CAN_NUMBER; txLength++) { txBuffer[txLength] = CodeCan; } write(txBuffer, txLength); } /** * @brief Receives a packet of data. * @param None. * @return Packet type. */ Ymodem::Code Ymodem::receivePacket() { if(code == CodeNone) { if(read(&(rxBuffer[0]), 1) > 0) { if(rxBuffer[0] == CodeSoh) { uint32_t len = read(&(rxBuffer[1]), YMODEM_PACKET_SIZE + YMODEM_PACKET_OVERHEAD - 1); if(len < (YMODEM_PACKET_SIZE + YMODEM_PACKET_OVERHEAD - 1)) { rxLength = len + 1; code = CodeSoh; return CodeNone; } else { return CodeSoh; } } else if(rxBuffer[0] == CodeStx) { uint32_t len = read(&(rxBuffer[1]), YMODEM_PACKET_1K_SIZE + YMODEM_PACKET_OVERHEAD - 1); if(len < (YMODEM_PACKET_1K_SIZE + YMODEM_PACKET_OVERHEAD - 1)) { rxLength = len + 1; code = CodeStx; return CodeNone; } else { return CodeStx; } } else { return (Code)(rxBuffer[0]); } } else { return CodeNone; } } else { if(code == CodeSoh) { uint32_t len = read(&(rxBuffer[rxLength]), YMODEM_PACKET_SIZE + YMODEM_PACKET_OVERHEAD - rxLength); if(len < (YMODEM_PACKET_SIZE + YMODEM_PACKET_OVERHEAD - rxLength)) { rxLength += len; return CodeNone; } else { code = CodeNone; return CodeSoh; } } else if(code == CodeStx) { uint32_t len = read(&(rxBuffer[rxLength]), YMODEM_PACKET_1K_SIZE + YMODEM_PACKET_OVERHEAD - rxLength); if(len < (YMODEM_PACKET_1K_SIZE + YMODEM_PACKET_OVERHEAD - rxLength)) { rxLength += len; return CodeNone; } else { code = CodeNone; return CodeStx; } } else { code = CodeNone; return CodeNone; } } } /** * @brief Receive none stage. * @param None. * @return None. */ void Ymodem::receiveStageNone() { timeCount = 0; errorCount = 0; dataCount = 0; code = CodeNone; stage = StageEstablishing; txBuffer[0] = CodeC; txLength = 1; write(txBuffer, txLength); } /** * @brief Receive establishing stage. * @param None. * @return None. */ void Ymodem::receiveStageEstablishing() { switch(receivePacket()) { case CodeSoh: { uint16_t crc = ((uint16_t)(rxBuffer[YMODEM_PACKET_SIZE + YMODEM_PACKET_OVERHEAD - 2]) << 8) | ((uint16_t)(rxBuffer[YMODEM_PACKET_SIZE + YMODEM_PACKET_OVERHEAD - 1]) << 0); if((rxBuffer[1] == 0x00) && (rxBuffer[2] == 0xFF) &&