204 lines
6.7 KiB
C++
204 lines
6.7 KiB
C++
#include "libJelling/bluetooth.h"
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Bluetooth::Bluetooth(){
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this->sentPacketsTotalSize = 0;
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this->receivedPacketsTotalSize = 0;
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this->unread = 0;
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this->allowReception = 1;
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srand(RTC_GetTicks());
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this->caltoID = rand();
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this->secondTry = 0;
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memcpy(this->sender, "HC-06\0", 6);
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}
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int Bluetooth::listen(int maxSize, int timer, void(*func)(void), int time){
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unsigned char conf[6] = {0, 5, 0, 0, 0, 0};
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max = maxSize;
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this->ptr = (char*)malloc(maxSize);
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this->ptr1ko = (char*)malloc(SIZE_DATA_RX);
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if(this->ptr == NULL || this->ptr1ko == NULL) return NOT_ENOUGH_RAM;
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this->timer = Timer_Install(timer, func, time);
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if(Serial_Open(conf) == 3) return SERIAL_ALREADY_OPEN;
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Timer_Start(this->timer);
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return 0;
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}
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int Bluetooth::stop(){
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Serial_Close(1);
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return 0;
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}
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int Bluetooth::setSender(const char *senderName){
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if(strlen(senderName)+1 <= 10){
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if(strlen(senderName) > 0){
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memcpy(this->sender, senderName, strlen(senderName)+1);
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}else{
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return TOO_SHORT;
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}
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}else{
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return TOO_LONG;
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}
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return 0;
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}
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int Bluetooth::sendMessage(Message *message){
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int RTCTime, tempInt;
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unsigned short tempShort, split;
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char *ptr2;
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unsigned char dateEx[] = "YYYY-MM-DD-HH-MM-SS";
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split = (unsigned short)(message->getLength()/SIZE_DATA_TX + (message->getLength()%SIZE_DATA_TX == 0 ? 0:1));
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if((ptr2 = (char*)malloc(SIZE_TX)) == NULL) return NOT_ENOUGH_RAM;
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Timer_Stop(this->timer);
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for(unsigned short i=0; i<split; i++){
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Serial_ClearTransmitBuffer();
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memcpy(ptr2,dateEx, 19);
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*(ptr2+TYPE_POS) = (message->getType() != NULL) ? message->getType() : RQT;
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if(message->getID() != -1){
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tempInt = message->getID();
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memcpy(ptr2+ID_POS, &tempInt, sizeof(int));
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}else memcpy(ptr2+ID_POS, &this->caltoID, sizeof(int));
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memcpy(ptr2+SENDER_POS, (message->getSender() != NULL) ? message->getSender() : this->sender, 10);
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tempInt = message->getLength();
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memcpy(ptr2+MESSAGE_LENGTH_POS, &tempInt, sizeof(int));
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tempInt = (i+1)*SIZE_DATA_TX > message->getLength() ? message->getLength()-i*SIZE_DATA_TX : SIZE_DATA_TX;
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memcpy(ptr2+PACKET_LENGTH_POS, &tempInt, sizeof(int));
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tempShort = i+1;
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memcpy(ptr2+PART_POS, &tempShort, sizeof(unsigned short));
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memcpy(ptr2+NUMBER_PART_POS, &split, sizeof(unsigned short));
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memcpy(ptr2+SIZE_HEADER, (char*)message->getMessage()+i*SIZE_DATA_TX, tempInt);
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Serial_WriteBytes((unsigned char*)ptr2,SIZE_HEADER+tempInt);
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RTCTime = RTC_GetTicks();
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while(Serial_GetTxBufferFreeCapacity() < SIZE_TX){
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if((RTC_GetTicks() - RTCTime)/RTC > 300){
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free(ptr2);
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Timer_Start(this->timer);
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return UNKNOWN_ERROR;
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}
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}
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}
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RTCTime = RTC_GetTicks();
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isWaitingAck = true;
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while(this->lastID != this->caltoID){
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if((RTC_GetTicks() - RTCTime)/RTC > 300){
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free(ptr2);
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Timer_Start(this->timer);
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isWaitingAck = false;
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return MISSING_ACK;
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}
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}
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isWaitingAck = false;
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free(ptr2);
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this->caltoID++;
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Timer_Start(this->timer);
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return 0;
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}
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Message& Bluetooth::getLastMessage(){
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return msg;
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}
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void Bluetooth::receptMessage(){
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int size, errorID;
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int RTCTime;
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int messageLength = SIZE_HEADER;
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char buffer[50];
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int lengthPackets[2];
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unsigned short partsNumber[2] = {(unsigned short)0,(unsigned short)1};
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const char err[1][4] = {"ERR"};
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unsigned int messageID;
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Message sendBack;
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if((this->secondTry = Serial_GetRxBufferSize()) == SIZE_DATA_RX || ((int)this->secondTry==Serial_GetRxBufferSize() && this->secondTry != 0)){
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Serial_ReadBytes((unsigned char*)this->ptr1ko, SIZE_DATA_RX,(short*)&size);
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this->secondTry = 0;
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switch((unsigned char)*(this->ptr1ko+TYPE_POS)){
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case ACK:
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if(isWaitingAck){
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this->lastType = ACK;
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memcpy(&this->lastID, (unsigned int*)this->ptr1ko+SIZE_HEADER, sizeof(unsigned int));
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}
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RETURN
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case SYN:
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this->caltoID = rand();
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sendBack.init(SYN+ACK, this->caltoID, this->sender, "test");
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sendMessage(&sendBack);
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RETURN
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case RQT:
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case END:
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case ASW:
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// if allowReception. else, send back a FUL packet to the device
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if(this->allowReception){
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if(size >= ID_POS + 4) memcpy(&messageID, (unsigned int*)this->ptr1ko+ID_POS, sizeof(unsigned int));
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if(size < SIZE_HEADER){
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if(size >= ID_POS + 4)sendBack.init(HED, this->caltoID, this->sender, (char*)messageID);
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else sendBack.init(HED, this->caltoID, this->sender, "\0");
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sendMessage(&sendBack);
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RETURN
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}
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memcpy(this->sender, this->ptr1ko+ID_POS + 4, 10);
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for(unsigned short i=0; i<partsNumber[1]; i++){
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memcpy(&messageID, (unsigned int*)this->ptr1ko+ID_POS, sizeof(unsigned int));
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if(messageID != this->androidID){
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sprintf(buffer,"INCORRECT ID %d-%d",messageID,this->androidID);
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sendBack.init(ERR, messageID, this->sender, buffer);
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sendMessage(&sendBack);
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RETURN
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}
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memcpy(lengthPackets, this->ptr1ko+PACKET_LENGTH_POS, sizeof(lengthPackets));
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sprintf(buffer,"%d", i+1);
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if(partsNumber[0] != i+1){
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if(partsNumber[0] > i+1){
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sendBack.init(ERR, messageID, this->sender, buffer);
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sendMessage(&sendBack);
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}else{
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sendBack.init(ACK, messageID, this->sender, buffer);
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sendMessage(&sendBack);
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}
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}else if(lengthPackets[1] != size-SIZE_HEADER){
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sprintf(buffer, "INCOMPLETE PACKET SIZE %d", this->androidID);
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sendBack.init(ERR, messageID, this->sender, buffer);
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sendMessage(&sendBack);
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RETURN
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}else{
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messageLength+=size-SIZE_HEADER;
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memcpy(this->ptr+SIZE_HEADER+i*SIZE_DATA_RX, this->ptr1ko+SIZE_HEADER, SIZE_DATA_RX);
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sendBack.init(ACK, messageID, this->sender, buffer);
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sendMessage(&sendBack);
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if(messageLength-SIZE_HEADER == lengthPackets[0] && partsNumber[0] == partsNumber[1]){
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if(!(errorID = msg.setTotalMessage(this->ptr))){
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this->unread = 1;
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this->allowReception = 0;
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this->androidID++;
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RETURN
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}else{
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sendBack.init(ERR, messageID, this->sender, (char*)&err[errorID]);
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sendMessage(&sendBack);
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RETURN
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}
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}
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}
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RTCTime = RTC_GetTicks();
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while(Serial_GetRxBufferSize() != (lengthPackets[0]-messageLength-SIZE_HEADER>SIZE_DATA_RX ? SIZE_DATA_RX : lengthPackets[0]-messageLength-SIZE_HEADER)){
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if((RTC_GetTicks() - RTCTime)/RTC > 300){
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RETURN
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}
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}
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memcpy(partsNumber, this->ptr1ko+PART_POS, sizeof(partsNumber));
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}
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}else{
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sprintf(buffer, "%d",this->androidID);
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sendBack.init(FUL, this->caltoID, this->sender, buffer);
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sendMessage(&sendBack);
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RETURN
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}
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break;
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}
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}else if(Serial_GetRxBufferSize()>0){
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this->secondTry = Serial_GetRxBufferSize();
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RETURN
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}
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} |