1e444839e0
Improved network error recovery so that it it possible to reconnect after some types of network error have occurred Corrected calculation of temperatures to give more accurate results towards the limits of the ADC range
1257 lines
27 KiB
C++
1257 lines
27 KiB
C++
/****************************************************************************************************
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RepRapFirmware - Platform: RepRapPro Mendel with Prototype Arduino Due controller
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Platform contains all the code and definitons to deal with machine-dependent things such as control
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pins, bed area, number of extruders, tolerable accelerations and speeds and so on.
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-----------------------------------------------------------------------------------------------------
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Version 0.1
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18 November 2012
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Adrian Bowyer
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RepRap Professional Ltd
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http://reprappro.com
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Licence: GPL
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****************************************************************************************************/
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#include "RepRapFirmware.h"
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// Arduino initialise and loop functions
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// Put nothing in these other than calls to the RepRap equivalents
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void setup()
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{
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reprap.Init();
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//reprap.GetMove()->InterruptTime(); // Uncomment this line to time the interrupt routine on startup
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}
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void loop()
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{
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reprap.Spin();
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}
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//*************************************************************************************************
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Platform::Platform()
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{
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fileStructureInitialised = false;
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line = new Line();
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// Files
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massStorage = new MassStorage(this);
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for(int8_t i=0; i < MAX_FILES; i++)
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files[i] = new FileStore(this);
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network = new Network();
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active = false;
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}
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//*******************************************************************************************************************
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void Platform::Init()
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{
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byte i;
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compatibility = me;
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line->Init();
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messageIndent = 0;
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//network->Init();
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massStorage->Init();
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for(i=0; i < MAX_FILES; i++)
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files[i]->Init();
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fileStructureInitialised = true;
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mcp.begin();
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sysDir = SYS_DIR;
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configFile = CONFIG_FILE;
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ipAddress = IP_ADDRESS;
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netMask = NET_MASK;
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gateWay = GATE_WAY;
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// DRIVES
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stepPins = STEP_PINS;
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directionPins = DIRECTION_PINS;
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enablePins = ENABLE_PINS;
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disableDrives = DISABLE_DRIVES;
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lowStopPins = LOW_STOP_PINS;
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highStopPins = HIGH_STOP_PINS;
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maxFeedrates = MAX_FEEDRATES;
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accelerations = ACCELERATIONS;
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driveStepsPerUnit = DRIVE_STEPS_PER_UNIT;
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instantDvs = INSTANT_DVS;
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potWipes = POT_WIPES;
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senseResistor = SENSE_RESISTOR;
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maxStepperDigipotVoltage = MAX_STEPPER_DIGIPOT_VOLTAGE;
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zProbePin = -1; // Default is to use the switch
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zProbeCount = 0;
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zProbeSum = 0;
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zProbeValue = 0;
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zProbeADValue = Z_PROBE_AD_VALUE;
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zProbeStopHeight = Z_PROBE_STOP_HEIGHT;
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// AXES
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axisLengths = AXIS_LENGTHS;
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homeFeedrates = HOME_FEEDRATES;
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headOffsets = HEAD_OFFSETS;
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// HEATERS - Bed is assumed to be the first
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tempSensePins = TEMP_SENSE_PINS;
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heatOnPins = HEAT_ON_PINS;
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thermistorBetas = THERMISTOR_BETAS;
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thermistorSeriesRs = THERMISTOR_SERIES_RS;
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thermistorInfRs = THERMISTOR_25_RS;
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usePID = USE_PID;
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pidKis = PID_KIS;
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pidKds = PID_KDS;
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pidKps = PID_KPS;
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fullPidBand = FULL_PID_BAND;
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pidMin = PID_MIN;
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pidMax = PID_MAX;
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dMix = D_MIX;
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heatSampleTime = HEAT_SAMPLE_TIME;
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standbyTemperatures = STANDBY_TEMPERATURES;
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activeTemperatures = ACTIVE_TEMPERATURES;
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coolingFanPin = COOLING_FAN_PIN;
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turnHeatOn = HEAT_ON;
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webDir = WEB_DIR;
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gcodeDir = GCODE_DIR;
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tempDir = TEMP_DIR;
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for(i = 0; i < DRIVES; i++)
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{
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if(stepPins[i] >= 0)
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{
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if(i > Z_AXIS)
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pinModeNonDue(stepPins[i], OUTPUT);
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else
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pinMode(stepPins[i], OUTPUT);
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}
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if(directionPins[i] >= 0)
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{
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if(i > Z_AXIS)
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pinModeNonDue(directionPins[i], OUTPUT);
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else
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pinMode(directionPins[i], OUTPUT);
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}
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if(enablePins[i] >= 0)
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{
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if(i >= Z_AXIS)
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pinModeNonDue(enablePins[i], OUTPUT);
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else
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pinMode(enablePins[i], OUTPUT);
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}
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Disable(i);
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driveEnabled[i] = false;
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}
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for(i = 0; i < AXES; i++)
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{
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if(lowStopPins[i] >= 0)
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{
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pinMode(lowStopPins[i], INPUT);
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digitalWrite(lowStopPins[i], HIGH); // Turn on pullup
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}
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if(highStopPins[i] >= 0)
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{
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pinMode(highStopPins[i], INPUT);
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digitalWrite(highStopPins[i], HIGH); // Turn on pullup
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}
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}
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if(heatOnPins[0] >= 0)
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pinMode(heatOnPins[0], OUTPUT);
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thermistorInfRs[0] = ( thermistorInfRs[0]*exp(-thermistorBetas[0]/(25.0 - ABS_ZERO)) );
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for(i = 1; i < HEATERS; i++)
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{
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if(heatOnPins[i] >= 0)
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pinModeNonDue(heatOnPins[i], OUTPUT);
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thermistorInfRs[i] = ( thermistorInfRs[i]*exp(-thermistorBetas[i]/(25.0 - ABS_ZERO)) );
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}
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if(zProbePin >= 0)
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pinMode(zProbePin, INPUT);
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if(coolingFanPin >= 0)
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{
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pinMode(coolingFanPin, OUTPUT);
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analogWrite(coolingFanPin, 0);
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}
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InitialiseInterrupts();
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addToTime = 0.0;
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lastTimeCall = 0;
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lastTime = Time();
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longWait = lastTime;
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active = true;
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}
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void Platform::StartNetwork()
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{
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network->Init();
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}
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void Platform::Spin()
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{
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if(!active)
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return;
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network->Spin();
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line->Spin();
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if(Time() - lastTime < 0.006)
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return;
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PollZHeight();
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lastTime = Time();
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ClassReport("Platform", longWait);
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}
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//*****************************************************************************************************************
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// Interrupts
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void TC3_Handler()
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{
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TC_GetStatus(TC1, 0);
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reprap.Interrupt();
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}
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void Platform::InitialiseInterrupts()
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{
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pmc_set_writeprotect(false);
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pmc_enable_periph_clk((uint32_t)TC3_IRQn);
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TC_Configure(TC1, 0, TC_CMR_WAVE | TC_CMR_WAVSEL_UP_RC | TC_CMR_TCCLKS_TIMER_CLOCK4);
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TC1->TC_CHANNEL[0].TC_IER=TC_IER_CPCS;
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TC1->TC_CHANNEL[0].TC_IDR=~TC_IER_CPCS;
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SetInterrupt(STANDBY_INTERRUPT_RATE);
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}
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void Platform::DisableInterrupts()
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{
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NVIC_DisableIRQ(TC3_IRQn);
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}
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//*************************************************************************************************
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void Platform::Diagnostics()
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{
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Message(HOST_MESSAGE, "Platform Diagnostics:\n");
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}
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extern char _end;
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extern "C" char *sbrk(int i);
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void Platform::PrintMemoryUsage()
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{
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char *ramstart=(char *)0x20070000;
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char *ramend=(char *)0x20088000;
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char *heapend=sbrk(0);
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register char * stack_ptr asm ("sp");
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struct mallinfo mi=mallinfo();
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Message(HOST_MESSAGE, "\n");
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Message(HOST_MESSAGE, "Memory usage:\n\n");
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snprintf(scratchString, STRING_LENGTH, "Dynamic ram used: %d\n",mi.uordblks);
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Message(HOST_MESSAGE, scratchString);
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snprintf(scratchString, STRING_LENGTH, "Program static ram used: %d\n",&_end - ramstart);
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Message(HOST_MESSAGE, scratchString);
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snprintf(scratchString, STRING_LENGTH, "Stack ram used: %d\n",ramend - stack_ptr);
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Message(HOST_MESSAGE, scratchString);
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snprintf(scratchString, STRING_LENGTH, "Guess at free mem: %d\n\n",stack_ptr - heapend + mi.fordblks);
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Message(HOST_MESSAGE, scratchString);
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}
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void Platform::ClassReport(char* className, float &lastTime)
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{
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if(!reprap.Debug())
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return;
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if(Time() - lastTime < LONG_TIME)
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return;
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lastTime = Time();
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snprintf(scratchString, STRING_LENGTH, "Class %s spinning.\n", className);
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Message(HOST_MESSAGE, scratchString);
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}
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//===========================================================================
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//=============================Thermal Settings ============================
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//===========================================================================
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// See http://en.wikipedia.org/wiki/Thermistor#B_or_.CE.B2_parameter_equation
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// BETA is the B value
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// RS is the value of the series resistor in ohms
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// R_INF is R0.exp(-BETA/T0), where R0 is the thermistor resistance at T0 (T0 is in kelvin)
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// Normally T0 is 298.15K (25 C). If you write that expression in brackets in the #define the compiler
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// should compute it for you (i.e. it won't need to be calculated at run time).
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// If the A->D converter has a range of 0..1023 and the measured voltage is V (between 0 and 1023)
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// then the thermistor resistance, R = V.RS/(1024 - V)
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// and the temperature, T = BETA/ln(R/R_INF)
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// To get degrees celsius (instead of kelvin) add -273.15 to T
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//#define THERMISTOR_R_INFS ( THERMISTOR_25_RS*exp(-THERMISTOR_BETAS/298.15) ) // Compute in Platform constructor
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// Result is in degrees celsius
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float Platform::GetTemperature(int8_t heater)
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{
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// If the ADC reading is N then for an ideal ADC, the input voltage is at least N/(ADC_RANGE + 1) and less than (N + 1)/(ADC_RANGE + 1), times the analog reference.
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// So we add 0.5 to to the reading to get a better estimate of the input. We don't care whether or not we get exactly zero with the thermistor disconnected.
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float r = (float)GetRawTemperature(heater) + 0.5;
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return ABS_ZERO + thermistorBetas[heater]/log( (r*thermistorSeriesRs[heater]/((AD_RANGE + 1) - r))/thermistorInfRs[heater] );
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}
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// power is a fraction in [0,1]
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void Platform::SetHeater(int8_t heater, const float& power)
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{
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if(heatOnPins[heater] < 0)
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return;
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byte p = (byte)(255.0*fmin(1.0, fmax(0.0, power)));
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if(turnHeatOn == 0)
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p = 255 - p;
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if(heater == 0)
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analogWrite(heatOnPins[heater], p);
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else
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analogWriteNonDue(heatOnPins[heater], p);
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}
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EndStopHit Platform::Stopped(int8_t drive)
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{
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if(zProbePin >= 0)
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{ // Z probe is used for both X and Z.
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if(drive != Y_AXIS)
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{
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if(ZProbe() > zProbeADValue)
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return lowHit;
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else
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return noStop;
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}
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}
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if(lowStopPins[drive] >= 0)
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{
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if(digitalRead(lowStopPins[drive]) == ENDSTOP_HIT)
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return lowHit;
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}
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if(highStopPins[drive] >= 0)
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{
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if(digitalRead(highStopPins[drive]) == ENDSTOP_HIT)
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return highHit;
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}
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return noStop;
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}
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/*********************************************************************************
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Files & Communication
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*/
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MassStorage::MassStorage(Platform* p)
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{
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platform = p;
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}
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void MassStorage::Init()
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{
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hsmciPinsinit();
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// Initialize SD MMC stack
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sd_mmc_init();
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delay(5);
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int sdPresentCount = 0;
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while ((CTRL_NO_PRESENT == sd_mmc_check(0)) && (sdPresentCount < 5))
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{
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//platform->Message(HOST_MESSAGE, "Please plug in the SD card.\n");
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//delay(1000);
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sdPresentCount++;
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}
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if(sdPresentCount >= 5)
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{
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platform->Message(HOST_MESSAGE, "Can't find the SD card.\n");
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return;
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}
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//print card info
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// SerialUSB.print("sd_mmc_card->capacity: ");
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// SerialUSB.print(sd_mmc_get_capacity(0));
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// SerialUSB.print(" bytes\n");
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// SerialUSB.print("sd_mmc_card->clock: ");
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// SerialUSB.print(sd_mmc_get_bus_clock(0));
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// SerialUSB.print(" Hz\n");
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// SerialUSB.print("sd_mmc_card->bus_width: ");
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// SerialUSB.println(sd_mmc_get_bus_width(0));
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memset(&fileSystem, 0, sizeof(FATFS));
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//f_mount (LUN_ID_SD_MMC_0_MEM, NULL);
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//int mounted = f_mount(LUN_ID_SD_MMC_0_MEM, &fileSystem);
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int mounted = f_mount(0, &fileSystem);
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if (mounted != FR_OK)
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{
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platform->Message(HOST_MESSAGE, "Can't mount filesystem 0: code ");
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snprintf(scratchString, STRING_LENGTH, "%d", mounted);
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platform->Message(HOST_MESSAGE, scratchString);
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platform->Message(HOST_MESSAGE, "\n");
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}
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}
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char* MassStorage::CombineName(char* directory, char* fileName)
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{
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int out = 0;
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int in = 0;
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// scratchString[out] = '/';
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// out++;
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if(directory != NULL)
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{
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//if(directory[in] == '/')
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// in++;
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while(directory[in] != 0 && directory[in] != '\n')// && directory[in] != '/')
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{
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scratchString[out] = directory[in];
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in++;
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out++;
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if(out >= STRING_LENGTH)
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{
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platform->Message(HOST_MESSAGE, "CombineName() buffer overflow.");
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out = 0;
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}
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}
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}
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//scratchString[out] = '/';
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// out++;
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in = 0;
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while(fileName[in] != 0 && fileName[in] != '\n')// && fileName[in] != '/')
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{
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scratchString[out] = fileName[in];
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in++;
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out++;
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if(out >= STRING_LENGTH)
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{
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platform->Message(HOST_MESSAGE, "CombineName() buffer overflow.");
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out = 0;
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}
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}
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scratchString[out] = 0;
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return scratchString;
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}
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// List the flat files in a directory. No sub-directories or recursion.
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|
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char* MassStorage::FileList(char* directory, bool fromLine)
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{
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// File dir, entry;
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DIR dir;
|
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FILINFO entry;
|
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FRESULT res;
|
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char loc[64];
|
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int len = 0;
|
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char fileListBracket = FILE_LIST_BRACKET;
|
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char fileListSeparator = FILE_LIST_SEPARATOR;
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if(fromLine)
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{
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if(platform->Emulating() == marlin)
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{
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fileListBracket = 0;
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fileListSeparator = '\n';
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}
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}
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len = strlen(directory);
|
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strncpy(loc,directory,len-1);
|
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loc[len - 1 ] = 0;
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|
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// if(reprap.debug()) {
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// platform->Message(HOST_MESSAGE, "Opening: ");
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// platform->Message(HOST_MESSAGE, loc);
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// platform->Message(HOST_MESSAGE, "\n");
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// }
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res = f_opendir(&dir,loc);
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if(res == FR_OK)
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{
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// if(reprap.debug()) {
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// platform->Message(HOST_MESSAGE, "Directory open\n");
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// }
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|
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int p = 0;
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// int q;
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int foundFiles = 0;
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|
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f_readdir(&dir,0);
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while((f_readdir(&dir,&entry) == FR_OK) && (foundFiles < 24))
|
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{
|
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foundFiles++;
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|
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if(strlen(entry.fname) > 0)
|
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{
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int q = 0;
|
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if(fileListBracket)
|
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fileList[p++] = fileListBracket;
|
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while(entry.fname[q])
|
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{
|
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fileList[p++] = entry.fname[q];
|
|
//SerialUSB.print(entry.fname[q]);
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q++;
|
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if(p >= FILE_LIST_LENGTH - 10) // Caution...
|
|
{
|
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platform->Message(HOST_MESSAGE, "FileList - directory: ");
|
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platform->Message(HOST_MESSAGE, directory);
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platform->Message(HOST_MESSAGE, " has too many files!\n");
|
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return "";
|
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}
|
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}
|
|
if(fileListBracket)
|
|
fileList[p++] = fileListBracket;
|
|
fileList[p++] = fileListSeparator;
|
|
}
|
|
}
|
|
|
|
if(foundFiles <= 0)
|
|
return "NONE";
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|
|
fileList[--p] = 0; // Get rid of the last separator
|
|
return fileList;
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
// Delete a file
|
|
bool MassStorage::Delete(char* directory, char* fileName)
|
|
{
|
|
char* location = platform->GetMassStorage()->CombineName(directory, fileName);
|
|
if( f_unlink (location) != FR_OK)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Can't delete file ");
|
|
platform->Message(HOST_MESSAGE, location);
|
|
platform->Message(HOST_MESSAGE, "\n");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------------------------
|
|
|
|
|
|
FileStore::FileStore(Platform* p)
|
|
{
|
|
platform = p;
|
|
}
|
|
|
|
|
|
void FileStore::Init()
|
|
{
|
|
bufferPointer = 0;
|
|
inUse = false;
|
|
writing = false;
|
|
lastBufferEntry = 0;
|
|
}
|
|
|
|
|
|
// Open a local file (for example on an SD card).
|
|
// This is protected - only Platform can access it.
|
|
|
|
bool FileStore::Open(char* directory, char* fileName, bool write)
|
|
{
|
|
char* location = platform->GetMassStorage()->CombineName(directory, fileName);
|
|
|
|
writing = write;
|
|
lastBufferEntry = FILE_BUF_LEN - 1;
|
|
FRESULT openReturn;
|
|
|
|
if(writing)
|
|
{
|
|
openReturn = f_open(&file, location, FA_CREATE_ALWAYS | FA_WRITE);
|
|
if (openReturn != FR_OK)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Can't open ");
|
|
platform->Message(HOST_MESSAGE, location);
|
|
platform->Message(HOST_MESSAGE, " to write to. Error code: ");
|
|
snprintf(scratchString, STRING_LENGTH, "%d", openReturn);
|
|
platform->Message(HOST_MESSAGE, scratchString);
|
|
platform->Message(HOST_MESSAGE, "\n");
|
|
return false;
|
|
}
|
|
bufferPointer = 0;
|
|
} else
|
|
{
|
|
openReturn = f_open(&file, location, FA_OPEN_EXISTING | FA_READ);
|
|
if (openReturn != FR_OK)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Can't open ");
|
|
platform->Message(HOST_MESSAGE, location);
|
|
platform->Message(HOST_MESSAGE, " to read from. Error code: ");
|
|
snprintf(scratchString, STRING_LENGTH, "%d", openReturn);
|
|
platform->Message(HOST_MESSAGE, scratchString);
|
|
platform->Message(HOST_MESSAGE, "\n");
|
|
return false;
|
|
}
|
|
bufferPointer = FILE_BUF_LEN;
|
|
}
|
|
|
|
inUse = true;
|
|
return true;
|
|
}
|
|
|
|
void FileStore::Close()
|
|
{
|
|
if(writing)
|
|
WriteBuffer();
|
|
f_close(&file);
|
|
platform->ReturnFileStore(this);
|
|
inUse = false;
|
|
writing = false;
|
|
lastBufferEntry = 0;
|
|
}
|
|
|
|
void FileStore::GoToEnd()
|
|
{
|
|
if(!inUse)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Attempt to seek on a non-open file.\n");
|
|
return;
|
|
}
|
|
unsigned long e = Length();
|
|
f_lseek(&file, e);
|
|
}
|
|
|
|
unsigned long FileStore::Length()
|
|
{
|
|
if(!inUse)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Attempt to size non-open file.\n");
|
|
return 0;
|
|
}
|
|
return file.fsize;
|
|
return 0;
|
|
}
|
|
|
|
int8_t FileStore::Status()
|
|
{
|
|
if(!inUse)
|
|
return nothing;
|
|
|
|
if(lastBufferEntry == FILE_BUF_LEN)
|
|
return byteAvailable;
|
|
|
|
if(bufferPointer < lastBufferEntry)
|
|
return byteAvailable;
|
|
|
|
return nothing;
|
|
}
|
|
|
|
void FileStore::ReadBuffer()
|
|
{
|
|
FRESULT readStatus;
|
|
readStatus = f_read(&file, buf, FILE_BUF_LEN, &lastBufferEntry); // Read a chunk of file
|
|
if (readStatus)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Error reading file.\n");
|
|
}
|
|
bufferPointer = 0;
|
|
}
|
|
|
|
bool FileStore::Read(char& b)
|
|
{
|
|
if(!inUse)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Attempt to read from a non-open file.\n");
|
|
return false;
|
|
}
|
|
|
|
if(bufferPointer >= FILE_BUF_LEN)
|
|
ReadBuffer();
|
|
|
|
if(bufferPointer >= lastBufferEntry)
|
|
{
|
|
b = 0; // Good idea?
|
|
return false;
|
|
}
|
|
|
|
b = (char)buf[bufferPointer];
|
|
bufferPointer++;
|
|
|
|
return true;
|
|
}
|
|
|
|
void FileStore::WriteBuffer()
|
|
{
|
|
FRESULT writeStatus;
|
|
writeStatus = f_write(&file, buf, bufferPointer, &lastBufferEntry);
|
|
if((writeStatus != FR_OK) || (lastBufferEntry != bufferPointer))
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Error writing file. Disc may be full.\n");
|
|
}
|
|
bufferPointer = 0;
|
|
}
|
|
|
|
|
|
void FileStore::Write(char b)
|
|
{
|
|
if(!inUse)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Attempt to write byte to a non-open file.\n");
|
|
return;
|
|
}
|
|
buf[bufferPointer] = b;
|
|
bufferPointer++;
|
|
if(bufferPointer >= FILE_BUF_LEN)
|
|
WriteBuffer();
|
|
}
|
|
|
|
void FileStore::Write(char* b)
|
|
{
|
|
if(!inUse)
|
|
{
|
|
platform->Message(HOST_MESSAGE, "Attempt to write string to a non-open file.\n");
|
|
return;
|
|
}
|
|
int i = 0;
|
|
while(b[i])
|
|
Write(b[i++]);
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------------------------------
|
|
|
|
FileStore* Platform::GetFileStore(char* directory, char* fileName, bool write)
|
|
{
|
|
FileStore* result = NULL;
|
|
|
|
if(!fileStructureInitialised)
|
|
return NULL;
|
|
|
|
for(int i = 0; i < MAX_FILES; i++)
|
|
if(!files[i]->inUse)
|
|
{
|
|
files[i]->inUse = true;
|
|
if(files[i]->Open(directory, fileName, write))
|
|
return files[i];
|
|
else
|
|
{
|
|
files[i]->inUse = false;
|
|
return NULL;
|
|
}
|
|
}
|
|
Message(HOST_MESSAGE, "Max open file count exceeded.\n");
|
|
return NULL;
|
|
}
|
|
|
|
|
|
MassStorage* Platform::GetMassStorage()
|
|
{
|
|
return massStorage;
|
|
}
|
|
|
|
void Platform::ReturnFileStore(FileStore* fs)
|
|
{
|
|
for(int i = 0; i < MAX_FILES; i++)
|
|
if(files[i] == fs)
|
|
{
|
|
files[i]->inUse = false;
|
|
return;
|
|
}
|
|
}
|
|
|
|
void Platform::Message(char type, char* message)
|
|
{
|
|
switch(type)
|
|
{
|
|
case FLASH_LED:
|
|
// Message that is to flash an LED; the next two bytes define
|
|
// the frequency and M/S ratio.
|
|
|
|
break;
|
|
|
|
case DISPLAY_MESSAGE:
|
|
// Message that is to appear on a local display; \f and \n should be supported.
|
|
case HOST_MESSAGE:
|
|
default:
|
|
|
|
// FileStore* m = GetFileStore(GetWebDir(), MESSAGE_FILE, true);
|
|
// if(m != NULL)
|
|
// {
|
|
// m->GoToEnd();
|
|
// m->Write(message);
|
|
// m->Close();
|
|
// } else
|
|
// line->Write("Can't open message file.\n");
|
|
for(uint8_t i = 0; i < messageIndent; i++)
|
|
line->Write(' ');
|
|
line->Write(message);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
//***************************************************************************************************
|
|
|
|
// Serial/USB class
|
|
|
|
Line::Line()
|
|
{
|
|
}
|
|
|
|
void Line::Init()
|
|
{
|
|
// alternateInput = NULL;
|
|
// alternateOutput = NULL;
|
|
SerialUSB.begin(BAUD_RATE);
|
|
//while (!SerialUSB.available());
|
|
}
|
|
|
|
//***************************************************************************************************
|
|
|
|
// Network/Ethernet class
|
|
|
|
// C calls to interface with LWIP (http://savannah.nongnu.org/projects/lwip/)
|
|
// These are implemented in, and called from, a modified version of httpd.c
|
|
// in the network directory.
|
|
|
|
extern "C"
|
|
{
|
|
|
|
//void ResetEther();
|
|
|
|
// Transmit data to the Network
|
|
|
|
void RepRapNetworkSendOutput(char* data, int length, void* pbuf, void* pcb, void* hs);
|
|
|
|
// When lwip releases storage, set the local copy of the pointer to 0 to stop
|
|
// it being used again.
|
|
|
|
void RepRapNetworkInputBufferReleased(void* pb)
|
|
{
|
|
reprap.GetPlatform()->GetNetwork()->InputBufferReleased(pb);
|
|
}
|
|
|
|
void RepRapNetworkConnectionError(void* h)
|
|
{
|
|
reprap.GetPlatform()->GetNetwork()->ConnectionError(h);
|
|
reprap.GetWebserver()->ConnectionError();
|
|
}
|
|
|
|
// Called to put out a message via the RepRap firmware.
|
|
|
|
void RepRapNetworkMessage(char* s)
|
|
{
|
|
reprap.GetPlatform()->Message(HOST_MESSAGE, s);
|
|
}
|
|
|
|
// Called to push data into the RepRap firmware.
|
|
|
|
void RepRapNetworkReceiveInput(char* data, int length, void* pbuf, void* pcb, void* hs)
|
|
{
|
|
reprap.GetPlatform()->GetNetwork()->ReceiveInput(data, length, pbuf, pcb, hs);
|
|
}
|
|
|
|
// Called when transmission of outgoing data is complete to allow
|
|
// the RepRap firmware to write more.
|
|
|
|
void RepRapNetworkAllowWriting()
|
|
{
|
|
reprap.GetPlatform()->GetNetwork()->SetWriteEnable(true);
|
|
}
|
|
|
|
bool RepRapNetworkHasALiveClient()
|
|
{
|
|
return reprap.GetPlatform()->GetNetwork()->Status() & clientLive;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
Network::Network()
|
|
{
|
|
active = false;
|
|
|
|
ethPinsInit();
|
|
|
|
//ResetEther();
|
|
|
|
// Construct the ring buffer
|
|
|
|
netRingAddPointer = new NetRing(NULL);
|
|
netRingGetPointer = netRingAddPointer;
|
|
for(int8_t i = 1; i < HTTP_STATE_SIZE; i++)
|
|
netRingGetPointer = new NetRing(netRingGetPointer);
|
|
netRingAddPointer->SetNext(netRingGetPointer);
|
|
}
|
|
|
|
// Reset the network to its disconnected and ready state.
|
|
|
|
void Network::Reset()
|
|
{
|
|
//reprap.GetPlatform()->Message(HOST_MESSAGE, "Reset.\n");
|
|
inputPointer = 0;
|
|
inputLength = -1;
|
|
outputPointer = 0;
|
|
writeEnabled = false;
|
|
closePending = false;
|
|
status = nothing;
|
|
}
|
|
|
|
void Network::CleanRing()
|
|
{
|
|
for(int8_t i = 0; i <= HTTP_STATE_SIZE; i++)
|
|
{
|
|
netRingGetPointer->Free();
|
|
netRingGetPointer = netRingGetPointer->Next();
|
|
}
|
|
netRingAddPointer = netRingGetPointer;
|
|
}
|
|
|
|
void Network::Init()
|
|
{
|
|
CleanRing();
|
|
Reset();
|
|
// if(LinkIsUp())
|
|
// reprap.GetPlatform()->SetHeater(0,1.0);
|
|
// else
|
|
// reprap.GetPlatform()->SetHeater(0,0.0);
|
|
if(!NETWORK) // NETWORK needs to be true to turn on the ethernet. It is defined in Configuration.h
|
|
return;
|
|
init_ethernet(reprap.GetPlatform()->IPAddress(), reprap.GetPlatform()->NetMask(), reprap.GetPlatform()->GateWay());
|
|
active = true;
|
|
}
|
|
|
|
void Network::Spin()
|
|
{
|
|
if(!active)
|
|
{
|
|
//ResetEther();
|
|
return;
|
|
}
|
|
|
|
// Keep the Ethernet running
|
|
|
|
ethernet_task();
|
|
|
|
// Anything come in from the network to act on?
|
|
|
|
if(!netRingGetPointer->Active())
|
|
return;
|
|
|
|
// Finished reading the active ring element?
|
|
|
|
if(!netRingGetPointer->ReadFinished())
|
|
{
|
|
// No - Finish reading any data that's been received.
|
|
|
|
if(inputPointer < inputLength)
|
|
return;
|
|
|
|
// Haven't started reading it yet - set that up.
|
|
|
|
inputPointer = 0;
|
|
inputLength = netRingGetPointer->Length();
|
|
inputBuffer = netRingGetPointer->Data();
|
|
}
|
|
}
|
|
|
|
// Webserver calls this to read bytes that have come in from the network
|
|
|
|
bool Network::Read(char& b)
|
|
{
|
|
if(inputPointer >= inputLength)
|
|
{
|
|
inputLength = -1;
|
|
inputPointer = 0;
|
|
netRingGetPointer->SetReadFinished(); // Past tense...
|
|
SetWriteEnable(true);
|
|
//reprap.GetPlatform()->Message(HOST_MESSAGE, "Network - data read.\n");
|
|
return false;
|
|
}
|
|
b = inputBuffer[inputPointer];
|
|
inputPointer++;
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
// Webserver calls this to write bytes that need to go out to the network
|
|
|
|
void Network::Write(char b)
|
|
{
|
|
// Check for horrible things...
|
|
|
|
if(!writeEnabled)
|
|
{
|
|
reprap.GetPlatform()->Message(HOST_MESSAGE, "Network::Write(char b) - Attempt to write when disabled.\n");
|
|
return;
|
|
}
|
|
|
|
if(outputPointer >= STRING_LENGTH)
|
|
{
|
|
reprap.GetPlatform()->Message(HOST_MESSAGE, "Network::Write(char b) - Output buffer overflow! \n");
|
|
return;
|
|
}
|
|
|
|
// Add the byte to the buffer
|
|
|
|
outputBuffer[outputPointer] = b;
|
|
outputPointer++;
|
|
|
|
// Buffer full? If so, send it.
|
|
|
|
if(outputPointer >= STRING_LENGTH - 5) // 5 is for safety
|
|
{
|
|
SetWriteEnable(false); // Stop further writing from Webserver until the network tells us that this has gone
|
|
RepRapNetworkSendOutput(outputBuffer, outputPointer, netRingGetPointer->Pbuf(), netRingGetPointer->Pcb(), netRingGetPointer->Hs());
|
|
outputPointer = 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
void Network::InputBufferReleased(void* pb)
|
|
{
|
|
if(netRingGetPointer->Pbuf() != pb)
|
|
{
|
|
reprap.GetPlatform()->Message(HOST_MESSAGE, "Network::InputBufferReleased() - Pointers don't match!\n");
|
|
return;
|
|
}
|
|
netRingGetPointer->ReleasePbuf();
|
|
}
|
|
|
|
void Network::ConnectionError(void* h)
|
|
{
|
|
// h points to an http state block that the caller is about to release, so we need to stop referring to it.
|
|
// The state block is usually but not always in use by the current http request being processed, in which case we abandon the current request.
|
|
if (netRingGetPointer != netRingAddPointer && netRingGetPointer->Hs() == h)
|
|
{
|
|
netRingGetPointer->Free();
|
|
netRingGetPointer = netRingGetPointer->Next();
|
|
}
|
|
|
|
// Reset the network layer. In particular, this clears the output buffer to make sure nothing more gets sent,
|
|
// and sets statue to 'nothing' so that we can accept another connection attempt.
|
|
Reset();
|
|
}
|
|
|
|
|
|
void Network::ReceiveInput(char* data, int length, void* pbuf, void* pcb, void* hs)
|
|
{
|
|
status = clientLive;
|
|
if(netRingAddPointer->Active())
|
|
{
|
|
reprap.GetPlatform()->Message(HOST_MESSAGE, "Network::ReceiveInput() - Ring buffer full!\n");
|
|
return;
|
|
}
|
|
netRingAddPointer->Set(data, length, pbuf, pcb, hs);
|
|
netRingAddPointer = netRingAddPointer->Next();
|
|
//reprap.GetPlatform()->Message(HOST_MESSAGE, "Network - input received.\n");
|
|
}
|
|
|
|
|
|
|
|
bool Network::CanWrite()
|
|
{
|
|
return writeEnabled;
|
|
}
|
|
|
|
void Network::SetWriteEnable(bool enable)
|
|
{
|
|
writeEnabled = enable;
|
|
if(!writeEnabled)
|
|
return;
|
|
if(closePending)
|
|
Close();
|
|
}
|
|
|
|
// This is not called for data, only for internally-
|
|
// generated short strings at the start of a transmission,
|
|
// so it should never overflow the buffer (which is checked
|
|
// anyway).
|
|
|
|
void Network::Write(char* s)
|
|
{
|
|
int i = 0;
|
|
while(s[i])
|
|
Write(s[i++]);
|
|
}
|
|
|
|
|
|
|
|
void Network::Close()
|
|
{
|
|
if(Status() && clientLive)
|
|
{
|
|
if(outputPointer > 0)
|
|
{
|
|
SetWriteEnable(false);
|
|
RepRapNetworkSendOutput(outputBuffer, outputPointer, netRingGetPointer->Pbuf(), netRingGetPointer->Pcb(), netRingGetPointer->Hs());
|
|
outputPointer = 0;
|
|
closePending = true;
|
|
return;
|
|
}
|
|
RepRapNetworkSendOutput((char*)NULL, 0, netRingGetPointer->Pbuf(), netRingGetPointer->Pcb(), netRingGetPointer->Hs());
|
|
netRingGetPointer->Free();
|
|
netRingGetPointer = netRingGetPointer->Next();
|
|
//reprap.GetPlatform()->Message(HOST_MESSAGE, "Network - output sent and closed.\n");
|
|
} else
|
|
reprap.GetPlatform()->Message(HOST_MESSAGE, "Network::Close() - Attempt to close a closed connection!\n");
|
|
closePending = false;
|
|
status = nothing;
|
|
//Reset();
|
|
}
|
|
|
|
int8_t Network::Status()
|
|
{
|
|
if(inputPointer >= inputLength)
|
|
return status;
|
|
return status | clientConnected | byteAvailable;
|
|
}
|
|
|
|
|
|
NetRing::NetRing(NetRing* n)
|
|
{
|
|
next = n;
|
|
Free();
|
|
}
|
|
|
|
void NetRing::Free()
|
|
{
|
|
pbuf = 0;
|
|
pcb = 0;
|
|
hs = 0;
|
|
data = "";
|
|
length = 0;
|
|
read = false;
|
|
active = false;
|
|
}
|
|
|
|
bool NetRing::Set(char* d, int l, void* pb, void* pc, void* h)
|
|
{
|
|
if(active)
|
|
return false;
|
|
pbuf = pb;
|
|
pcb = pc;
|
|
hs = h;
|
|
data = d;
|
|
length = l;
|
|
read = false;
|
|
active = true;
|
|
return true;
|
|
}
|
|
|
|
NetRing* NetRing::Next()
|
|
{
|
|
return next;
|
|
}
|
|
|
|
char* NetRing::Data()
|
|
{
|
|
return data;
|
|
}
|
|
|
|
int NetRing::Length()
|
|
{
|
|
return length;
|
|
}
|
|
|
|
bool NetRing::ReadFinished()
|
|
{
|
|
return read;
|
|
}
|
|
|
|
void NetRing::SetReadFinished()
|
|
{
|
|
read = true;
|
|
}
|
|
|
|
bool NetRing::Active()
|
|
{
|
|
return active;
|
|
}
|
|
|
|
void NetRing::SetNext(NetRing* n)
|
|
{
|
|
next = n;
|
|
}
|
|
|
|
void* NetRing::Pbuf()
|
|
{
|
|
return pbuf;
|
|
}
|
|
|
|
void NetRing::ReleasePbuf()
|
|
{
|
|
pbuf = 0;
|
|
}
|
|
|
|
void* NetRing::Pcb()
|
|
{
|
|
return pcb;
|
|
}
|
|
|
|
void* NetRing::Hs()
|
|
{
|
|
return hs;
|
|
}
|
|
|
|
void NetRing::ReleaseHs()
|
|
{
|
|
hs = 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|