/********************************************************************\ Class interfacing to FAD board \********************************************************************/ #include "FADBoard.h" using namespace std; // // Constructor // FADBoard::FADBoard(string Server, unsigned short ServerPort, class FAD *Parent, unsigned int Num) { int Ret; // Initialization m = Parent; Active = false; Continue = true; CommOK = false; ACalib.Time = -1; Status.Update.tv_sec = -1; Port = ServerPort; Status.Frequency = 0; Status.Rate = 0; Status.BoardID = 0; Name = new char [Server.size()+1]; // Name in permanent memory for DIM service strcpy(Name, Server.c_str()); // Initialise mutex for synchronization pthread_mutexattr_t Attr; if ((Ret = pthread_mutexattr_init(&Attr)) != 0) { m->Message(m->ERROR, "pthread_mutex_init() failed in FADBoard constructor (%s)", strerror(Ret)); } if ((Ret = pthread_mutexattr_settype(&Attr, PTHREAD_MUTEX_ERRORCHECK)) != 0) { m->Message(m->ERROR, "pthread_mutex_settype() failed in FADBoard constructor (%s)", strerror(Ret)); } if ((Ret = pthread_mutex_init(&Mutex, &Attr)) != 0) { m->Message(m->FATAL, "pthread_mutex_init() failed in FADBoard constructor (%s)", strerror(Ret)); } // Initialise condition variable for synchronization if ((Ret = pthread_cond_init(&CondVar, NULL)) != 0) { m->Message(m->FATAL, "pthread_cond_init() failed in FADBoard constructor (%s)", strerror(Ret)); } // Construct DIM service name prefix stringstream ID; ID << SERVER_NAME"/Board" << setfill('0') << setw(2) << Num << "/"; DIM_Name = new DimService((ID.str()+"Server").c_str(), Name); DIM_Status = new DimService((ID.str()+"Status").c_str(), (char *) ""); DIM_ID = new DimService((ID.str()+"BoardID").c_str(), (char *) "S", NULL, 0); DIM_Rate = new DimService((ID.str()+"RateHz").c_str(), Status.Rate); DIM_Frequency = new DimService((ID.str()+"Frequency").c_str(), Status.Frequency); DIM_TriggerNum = new DimService((ID.str()+"TriggerNum").c_str(), (char *) "I", &Status.TriggerNum, sizeof(Status.TriggerNum)); DIM_Temp = new DimService((ID.str()+"Temperature").c_str(), (char *) "F", NULL, 0); DIM_DAC = new DimService((ID.str()+"DAC").c_str(), (char *) "S", NULL, 0); DIM_ROI = new DimService((ID.str()+"ROI").c_str(), (char *) "S", NULL, 0); DIM_ACalData = new DimService((ID.str()+"ACalData").c_str(), (char *) "F", NULL, 0); // Create thread that connects and receives data SetStatus("Trying to connect..."); if ((Ret = pthread_create(&Thread, NULL, (void * (*)(void *)) LaunchThread, (void *) this)) != 0) { m->Message(m->FATAL, "pthread_create() failed in FADBoard() (%s)", strerror(Ret)); } // Start thread to connect to other sockets DimThread::start(); } // // Destructor // FADBoard::~FADBoard() { int Ret; // Cancel thread (if it did not quit already) and wait for it to quit if ((Ret = pthread_cancel(Thread)) != 0 && Ret != ESRCH) { m->Message(m->ERROR, "pthread_cancel() failed in ~FADBoard() (%s)", strerror(Ret)); } if ((Ret = pthread_join(Thread, NULL)) != 0) { m->Message(m->ERROR, "pthread_join() failed in ~FADBoard (%s)", strerror(Ret)); } // Delete condition variable if ((Ret = pthread_cond_destroy(&CondVar)) != 0) { m->Message(m->ERROR, "pthread_cond_destroy() failed for %s in ~FADBoard (%s)", Name, strerror(Ret)); } // Delete mutex if ((Ret = pthread_mutex_destroy(&Mutex)) != 0) { m->Message(m->ERROR, "pthread_mutex_destroy() failed for %s in ~FADBoard (%s)", Name, strerror(Ret)); } delete DIM_Name; delete DIM_Status; delete DIM_ID; delete DIM_Rate; delete DIM_Frequency; delete DIM_TriggerNum; delete DIM_Temp; delete DIM_DAC; delete DIM_ROI; delete DIM_ACalData; delete[] Name; } // // Send data to board // void FADBoard::Send(const void *Data, size_t Bytes) { // Do not send if not active or communication problem if (!Active || !CommOK) return; // Write data ssize_t Result = write(Socket, Data, Bytes); // Check result if (Result == -1) m->PrintMessage("Error: Could not write to socket (%s)\n", strerror(errno)); else if ((size_t) Result < Bytes) m->PrintMessage("Error: Could only write %d bytes out of %d to socket\n", Result, Bytes); } void FADBoard::Send(unsigned short Data) { unsigned short Buffer = htons(Data); Send(&Buffer, sizeof(unsigned short)); } // // Get board status (mutex protected to avoid concurrent access in ReadLoop) // struct FADBoard::BoardStatus FADBoard::GetStatus() { int Ret; struct BoardStatus S; // Lock if ((Ret = pthread_mutex_lock(&Mutex)) != 0) { m->Message(m->FATAL, "pthread_mutex_lock() failed in ReadLoop() (%s)", strerror(Ret)); } S = Status; // Unlock if ((Ret = pthread_mutex_unlock(&Mutex)) != 0) { m->Message(m->FATAL, "pthread_mutex_unlock() failed in Unlock() (%s)", strerror(Ret)); } return S; } // // Perform amplitude calibration in steps // // The steps are intended to assure that up to date data is available void FADBoard::AmplitudeCalibration() { vector ROICmd; unsigned short DACCmd[] = {htons(CMD_Write | (BADDR_DAC + 1)), 0, htons(CMD_Write | (BADDR_DAC + 2)), 0, htons(CMD_Write | (BADDR_DAC + 3)), 0}; string Message = string("ACALIBDONE")+Name+"\n"; switch (State) { // ====== Part A: Check if amplitude calibration should start and initialise ===== case standbye: if (m->Mode != m->acalib) break; // Invalidate current calibration ACalib.Time = -1; Count = 0; // Save initial board status, set all ROIs to 1024 and set DAC values (no triggers while setting ROI) InitialStatus = GetStatus(); Send(CMD_TRIGGERS_OFF); usleep(500000); for (unsigned int i=0; iMode != m->acalib) { State = cleanup; break; } // Average for (unsigned int Chip=0; ChipNumEventsRequested) break; for (unsigned int i=0; iNumEventsRequested; } } } // Set new DAC values and start accumulation DACCmd[1] = htons(50000); DACCmd[3] = htons(50000); DACCmd[5] = htons(50000); Send(DACCmd, sizeof(DACCmd)); // Clear sum vector and set state to accumulate memset(Sum, 0, sizeof(Sum)); Count = 0; State = gain; break; // ====== Part C: Gain calibration ===== case gain: // Check for stopping if (m->Mode != m->acalib) { State = cleanup; break; } // Average for (unsigned int Chip=0; ChipNumEventsRequested) break; for (unsigned int i=0; iNumEventsRequested) - ACalib.Baseline[i][j][k]; } } } // Set new DAC values and start accumulation DACCmd[1] = htons(0); DACCmd[3] = htons(0); DACCmd[5] = htons(0); Send(DACCmd, sizeof(DACCmd)); // Clear sum vector and set state to accumulate memset(Sum, 0, sizeof(Sum)); Count = 0; State = secondary; break; // ====== Part D: Secondary calibration ===== case secondary: // Check for stopping if (m->Mode != m->acalib) { State = cleanup; break; } // Average for (unsigned int Chip=0; ChipNumEventsRequested) break; for (unsigned int i=0; iNumEventsRequested; } } } // Store calibration time and temperature ACalib.DNA = Status.DNA; ACalib.Frequency = Status.Frequency; ACalib.Time = time(NULL); ACalib.Temp = 0; for (unsigned int i=0; iPipe[1], Message.data(), Message.size()) == -1) { m->Message(m->ERROR, "write() to Pipe[1] failed in class FADBoard::AmplitudeCalibration (%s)", strerror(errno)); } SetStatus("Finished calibration"); State = cleanup; break; // ====== Part E: Write back original ROI and DAC settings ===== case cleanup: // ROI values Send(CMD_TRIGGERS_OFF); usleep(100000); ROICmd.clear(); for (unsigned int i=0; iupdateService(ACalData, 3*NChips*NChannels*NBins*sizeof(float)); State = wait; break; // ====== Wait for Mode not being idle ===== case wait: if (m->Mode == m->idle) State = standbye; break; } } // // Connect to board and read data // void FADBoard::ReadLoop() { char Buffer[READ_BUFFER_SIZE]; unsigned int Pos = 0, Count = 0; const PEVNT_HEADER *Header = (PEVNT_HEADER *) Buffer; ssize_t Result; struct sockaddr_in SocketAddress; struct BoardStatus PrevStatus; int Ret; // Resolve hostname struct hostent *Host = gethostbyname(Name); if (Host == 0) { SetStatus("Could not resolve host name '%s'", Name); return; } SocketAddress.sin_family = PF_INET; SocketAddress.sin_port = htons(Port); SocketAddress.sin_addr = *(struct in_addr*) Host->h_addr; // Open socket descriptor if ((Socket = socket(PF_INET, SOCK_STREAM, 0)) == -1) { m->Message(m->ERROR, "Could not open socket for %s (%s)\n", Name, strerror(errno)); return; } // Connect to server if (connect(Socket, (struct sockaddr *) &SocketAddress, sizeof(SocketAddress)) == -1) { SetStatus("Could not connect to port %hu (%s)", Port, strerror(errno)); } else { CommOK = true; Active = true; SetStatus("Connected"); } memset(&PrevStatus, 0, sizeof(PrevStatus)); // Leave loop if program termination requested or board communication not OK while (!m->ExitRequest && CommOK) { // Read data from socket Result = read(Socket, Buffer + Pos, sizeof(Buffer)-Pos); // Check result of read if (Result == -1) { m->Message(m->ERROR, "Could not read from socket for %s, exiting read loop (%s)\n", Name, strerror(errno)); CommOK = false; break; } else if (Result == 0) { SetStatus("Server not existing anymore, exiting read loop"); CommOK = false; break; } // If not active, discard incoming data if (!Active) continue; // Advance write pointer Pos += Result; // Check if internal buffer full if (Pos == sizeof(Buffer)) { SetStatus("Internal buffer full, deleting all data in buffer"); Pos = 0; continue; } // Check if buffer starts with start_package_flag, remove data if not unsigned int Temp = 0; while (ntohs(*((unsigned short *) (Buffer+Temp))) != 0xfb01 && Temppackage_length)*2*sizeof(char); if (Pos < Length) continue; // Extract data if event end package flag correct if (ntohs(*(unsigned short *) (Buffer+Length-sizeof(unsigned short))) == 0x04FE) { // Prepare pointers to channel data (channels stored in order 0,9,18,27 - 1,10,19,28 - ... - 8,17,26,35) PCHANNEL *Channel[NChips*NChannels], *Pnt=(PCHANNEL *) (Header+1); for(unsigned int i=0; iroi)); } // Wait until event thread processed the previous data and lock to avoid concurrent access in GetStatus() Lock(); while (!Continue) { struct timespec Wakeup; Wakeup.tv_sec = time(NULL)+5; Wakeup.tv_nsec = 0; if ((Ret = pthread_cond_timedwait(&CondVar, &Mutex, &Wakeup)) != 0) { if (Ret == ETIMEDOUT) printf("Board %s timed out (5 s) waiting for condition\n", Name); else m->Message(m->ERROR, "pthread_cond_wait() failed (%s)", strerror(Ret)); } } gettimeofday(&Status.Update, NULL); // Extract board and trigger information Status.BoardID = ntohs(Header->board_id); Status.FirmwareRevision = ntohs(Header->version_no); Status.BoardTime = ntohl(Header->time); Status.EventCounter = ntohl(Header->fad_evt_counter); Status.TriggerNum = ntohl(Header->trigger_id); Status.Runnumber = ntohl(Header->runnumber); Status.TriggerType = ntohs(Header->trigger_type); Status.TriggerCRC = ntohs(Header->trigger_crc); Status.DNA = Header->DNA; // Extract frequency related information Status.Frequency = ntohl(Header->REFCLK_frequency)/1.0e3*2.048; Status.PhaseShift = Header->adc_clock_phase_shift; for (unsigned int i=0; iPLLLCK)>>12 & (1<PLLLCK) & (1<<11) ); Status.dwrite = (bool) ( ntohs(Header->PLLLCK) & (1<<10) ); Status.DCM_lock = (bool) ( ntohs(Header->PLLLCK) & (1<<9) ); Status.DCM_ready = (bool) ( ntohs(Header->PLLLCK) & (1<<8) ); Status.spi_clk = (bool) ( ntohs(Header->PLLLCK) & (1<<7) ); // Extract temperatures (MSB indicates if temperature is positive or negative) for (unsigned int i=0; idrs_temperature[i]) & 0x8000) == 0) Status.Temp[i] = float(ntohs(Header->drs_temperature[i]) >> 3)/16; else Status.Temp[i] = float(0xE000 | (ntohs(Header->drs_temperature[i])) >> 3)/16; } // Extract DAC channels for (unsigned int i=0; idac[i]); short Buf; for (unsigned int Chip=0; Chipstart_cell); for (unsigned int Chan=0; Chanroi); // Extract ADC data (stored in 12 bit signed twis complement with out-of-range-bit and leading zeroes) for (int i=0; iadc_data[i]); (Buf <<= 4) >>= 4; //delete the sign-bit by shifting left and shift back Data[Chip][Chan][i] = Buf; } } } // Prepare predicate for condition variable Continue = false; Count++; Unlock(); // Amplitude calibration (will check if Mode is acalib) AmplitudeCalibration(); // Update DIM services if necessary if (Status.Update.tv_sec - PrevStatus.Update.tv_sec > m->EventUpdateDelay) { // Determine event rate Status.Rate = Count / (double(Status.Update.tv_sec-PrevStatus.Update.tv_sec) + (Status.Update.tv_usec-PrevStatus.Update.tv_usec)/1000000.0); Count = 0; if (PrevStatus.Frequency != Status.Frequency) DIM_Frequency->updateService(); if (PrevStatus.TriggerNum != Status.TriggerNum) DIM_TriggerNum->updateService(); if (PrevStatus.Rate != Status.Rate) DIM_Rate->updateService(); if (memcmp(PrevStatus.Temp, Status.Temp, sizeof(Status.Temp)) != 0) { DIM_Temp->updateService(Status.Temp, sizeof(Status.Temp)); } if (memcmp(PrevStatus.DAC, Status.DAC, sizeof(Status.DAC)) != 0) { DIM_DAC->updateService(Status.DAC, sizeof(Status.DAC)); } if (memcmp(PrevStatus.ROI, Status.ROI, sizeof(Status.ROI)) != 0) { DIM_ROI->updateService(Status.ROI, sizeof(Status.ROI)); } if (PrevStatus.BoardID != Status.BoardID) { DIM_ID->updateService(&Status.BoardID, sizeof(Status.BoardID)); } PrevStatus = Status; } // Inform event thread of new data string Message = string("EVENT")+Name+"\n"; if (write(m->Pipe[1], Message.data(), Message.size()) == -1) { m->Message(m->ERROR, "write() to Pipe[1] failed in class FADBoard (%s)", strerror(errno)); break; } } else SetStatus("End package flag incorrect, removing corrupt event"); // Remove event data from internal buffer memmove(Buffer, Buffer+Length, Pos-Length); Pos = Pos-Length; } // while() // Set inactive and close socket descriptor Active = false; if (close(Socket) == -1) { m->Message(m->ERROR, "Could not close socket descriptor for board %s (%s)", Name, strerror(errno)); } } // // Install cleanup handler and launch read thread inside class // void FADBoard::LaunchThread(class FADBoard *m) { pthread_cleanup_push((void (*)(void *)) FADBoard::ThreadCleanup, (void *) m); m->ReadLoop(); pthread_cleanup_pop(0); } // // Set status message // void FADBoard::SetStatus(const char *Format, ...) { int Ret; // Assemble message va_list ArgumentPointer; va_start(ArgumentPointer, Format); Lock(); Ret = vsnprintf(Status.Message, sizeof(Status.Message), Format, ArgumentPointer); Unlock(); va_end(ArgumentPointer); if (Ret == -1) m->Message(m->FATAL, "snprintf() in FADBoard::SetStatus() failed (%s)", strerror(errno)); // Update status service DIM_Status->updateService(Status.Message); } // // Lock and unlock mutex // void FADBoard::Lock() { int Ret; if ((Ret = pthread_mutex_lock(&Mutex)) != 0) { m->Message(m->FATAL, "pthread_mutex_lock() failed in class FADBoard (%s)", strerror(Ret)); } } void FADBoard::Unlock() { int Ret; if ((Ret = pthread_mutex_unlock(&Mutex)) != 0) { m->Message(m->FATAL, "pthread_mutex_unlock() failed in class FADBoard (%s)", strerror(Ret)); } } // Ensure that mutex is unlocked when before cancelling thread void FADBoard::ThreadCleanup(class FADBoard *This) { int Ret; if ((Ret = pthread_mutex_trylock(&This->Mutex)) != 0) { if (Ret != EBUSY) This->m->Message(This->m->FATAL, "pthread_mutex_trylock() failed in FADBoard::ThreadCleanup (%s)", strerror(Ret)); } This->Unlock(); } // // Open other sockets // // Error reporting is limited as this function is expected to be removed when firmware allows single socket // void FADBoard::threadHandler() { int List[] = {5001, 5002, 5003, 5004, 5005, 5006, 5007}; int Socket[sizeof(List)/sizeof(int)], MaxSocketNum, Ret; fd_set DescriptorList; char Buffer[1000000]; // Resolve hostname struct hostent *Host = gethostbyname(Name); if (Host == 0) return; // Connect to server struct sockaddr_in SocketAddress; SocketAddress.sin_family = PF_INET; SocketAddress.sin_addr = *(struct in_addr*) Host->h_addr; for (unsigned int i=0; iMessage(m->ERROR, "OtherSockets: Could not open socket for port %d (%s)\n", List[i], strerror(errno)); return; } MaxSocketNum = *max_element(Socket, Socket+sizeof(List)/sizeof(int)); // Connect to server SocketAddress.sin_port = htons((unsigned short) List[i]); if (connect(Socket[i], (struct sockaddr *) &SocketAddress, sizeof(SocketAddress)) == -1) return; } while(true) { // Wait for data from sockets FD_ZERO(&DescriptorList); for (unsigned int i=0; iMessage(m->ERROR, "OtherSockets: Error with select() (%s)\n", strerror(errno)); break; } // Data from socket for (unsigned int i=0; iMessage(m->ERROR, "OtherSockets: Error reading from port %d (%s)\n", List[i], strerror(errno)); } } // Close all sockets for (unsigned int i=0; iMessage(m->ERROR, "OtherSockets: Could not close socket of port %d (%s)", List[i], strerror(errno)); } } }