File content as of revision 24:040cdcb2ff14:

/*
 * main.cpp
 * SpiSequencerSender_test
 *
 * 2016.08.20 mbed Rev 121 / mbed-rtos Rev 117で動作確認
 *
 */

#include "mbed.h"
#include "rtos.h"
#include "st7565LCD.h"
#include "PinDetect.h"
#include "RotaryEncoder.h"
#include "AverageAnalogIn.h"

#define UART_TRACE  (0)
#include "SpiSequenceSender.h"
#include "EnvelopeGenerator.h"
#include "SpiAmpController.h"
#include "SpiFilterController.h"
#include "ST7565_SequencerDisplay.h"

#define TITLE_STR1  ("BaseMachine Sequencer")
#define TITLE_STR2  ("20160823")

#define SEQUENCE_N  (16)
#define SPI_RATE    (8000000)

const int samplingPeriod = 1;   // ms
const int bpm = 120;
const int envelopeLength = (60 * 1000 / (bpm * 4)) / samplingPeriod;
const int waveShape = SpiSequenceSender::WAVESHAPE_SQUARE;
const int baseNoteNumber = 36;
const int pitchMax = 12;
const int bpmMax = 240;
const int bpmMin = 60;

// Initial Sequence
const int noteOn[SEQUENCE_N] = { 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0 };
const int octave[SEQUENCE_N] = {-1,-1,-1, 0, 0,-1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 };
const int pitch[SEQUENCE_N]  = { 9, 7, 3, 0, 0, 3, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0 };
const int tie[SEQUENCE_N]    = { 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0 };

// Devices
//
//SPI (PinName mosi, PinName miso, PinName sclk, PinName ssel=NC)
SPI spiMaster(PA_7, PA_6, PA_5);

//ST7565(PinName mosi, PinName sclk, PinName cs, PinName rst, PinName a0);
ST7565 gLCD(PB_15, PB_13, PB_12, PB_2, PB_1);

AverageAnalogIn AinPulseWidth(PC_2);
AverageAnalogIn AinCutOff(PB_0);
AverageAnalogIn AinResonance(PC_1);
AverageAnalogIn AinEnvMod(PC_3);
AverageAnalogIn AinLevel(PC_0);
AverageAnalogIn AinDuration(PA_4);
AverageAnalogIn AinDecay(PA_1);
AverageAnalogIn AinSustain(PA_0);

RotaryEncoder RotEncStep(D2, D3, 0, SEQUENCE_N - 1, 0);
RotaryEncoder RotEncPitch(D4, D5, 0, pitchMax, 0);
RotaryEncoder RotEncBpm(D14, D15, bpmMin, bpmMax, 120);

PinDetect PinWaveShape(PD_2, PullUp);
PinDetect PinModNumber(PC_11, PullUp);
PinDetect PinOctaveUp(PC_10, PullUp);
PinDetect PinOctaveDown(PC_12, PullUp);
PinDetect PinNoteOnOff(PA_13, PullUp);
PinDetect PinTie(PA_14, PullUp);
PinDetect PinAccent(PA_15, PullUp);
PinDetect PinRunStop(PB_7, PullUp);

// Grobal Variables
//
Sequence sequences[SEQUENCE_N];
SpiSequenceSender sequenceSender(&spiMaster, D9, sequences, SEQUENCE_N, samplingPeriod, bpm);

Envelope envelope(4095, envelopeLength, envelopeLength*3/4, envelopeLength/2, 2047);
EnvelopeGenerator envelopeGenerator;
SpiAmpController ampController(&spiMaster, D8, D7);

SpiFilterController filterController(&spiMaster, D10);

ST7565_SequencerDisplay sequencerDisplay(&gLCD, sequences, SEQUENCE_N);

volatile int currentStep = 0;
volatile bool isRunning = false;
volatile bool isDirty = false;
volatile uint8_t pinFlag = 0x00;

enum PinBit {
    bWaveShape  = 0x01,
    bModNumber  = 0x02,
    bOctaveUp   = 0x04,
    bOctaveDown = 0x08,
    bNoteOnOff  = 0x10,
    bTie        = 0x20,
    bAccent     = 0x40,
    bRunStop    = 0x80
};

// とりあえずの変数(後でClassのメンバ変数に格納)
#define MOD_NUMBER_MAX 1
volatile int modNumber = 0;
volatile uint8_t envMod = 127;

//------------------------------------------------------------------------
// Callback functions
//------------------------------------------------------------------------
void updateFunction(int ticks)
{
    if (ticks == 0) {
        envelopeGenerator.init(envelope);
    }

    if (sequenceSender.getSequences()[sequenceSender.getStep()].isNoteOn()) {
        uint16_t level = envelopeGenerator.getModLevel();
        ampController.outDca(level);
    } else {
        ampController.outDca(0);
    }
    envelopeGenerator.update();
    
    filterController.outDcf();
    
    // ToDo: 再生中のLCD表示を検討→SPI1とSPI2の信号のタイミングを調査
    //sequencerDisplay.update(SequencerDisplay::stop, sequenceSender.getStep());
}

//------------------------------------------------------------------------
// PinDetect ISR
//------------------------------------------------------------------------
void swWaveShapePressed()
{
    pinFlag |= bWaveShape;
}

void swModNumberPressed()
{
    pinFlag |= bModNumber;
}

void swOctaveUpPressed()
{
    pinFlag |= bOctaveUp;
}

void swOctaveDownPressed()
{
    pinFlag |= bOctaveDown;
}

void swNoteOnOffPressed()
{
    pinFlag |= bNoteOnOff;
}

void swTiePressed()
{
    pinFlag |= bTie;
}

void swAccentPressed()
{
    pinFlag |= bAccent;
}

void swRunStopPressed()
{
    pinFlag |= bRunStop;
}

//------------------------------------------------------------------------
// Functions
//------------------------------------------------------------------------
void pollingPots()
{
    //pulseWidth = AinPulseWidth.read_u16() >> 8;

    filterController.setCutoff(AinCutOff.read_u16() >> 8);
    filterController.setResonance(AinResonance.read_u16() >> 8);
    //envMod = AinEnvMod.read_u16() >> 8;
    
    //envelope.setLevel(AinLevel.read_u16() >> 4);
    envelope.setLevel(4095);
    envelope.setDuration(AinDuration.read() * envelopeLength);
    envelope.setDecay(AinDecay.read() * envelopeLength);
    envelope.setSustain(AinSustain.read() * 4095);
}

void pollingRotEncs()
{
    int _bpm = RotEncBpm.getVal();
    if (_bpm != sequenceSender.getBpm()) {
        sequenceSender.setBpm(_bpm);
        isDirty = true;
    }
    
    int _step = RotEncStep.getVal();
    if (_step != currentStep) {
        currentStep = _step;
        // syncronize sequence value & Rotary Encoder's value
        RotEncPitch.setVal(sequences[currentStep].getPitch());
        isDirty = true;
    }
    
    int _pitch = RotEncPitch.getVal();
    if (_pitch != sequences[currentStep].getPitch()) {
        sequences[currentStep].setPitch(_pitch);
        isDirty = true;
    }
}

void pollingPins()
{
    if (pinFlag & bWaveShape) {
        #if (UART_TRACE)
        printf("PinWaveShape Pushed\r\n");
        #endif
        uint8_t waveShape = sequenceSender.getWaveShape();
        waveShape++;
        if (waveShape < SpiSequenceSender::WAVESHAPE_N) {
            sequenceSender.setWaveShape(waveShape);
        } else {
            sequenceSender.setWaveShape(0);
        }
        pinFlag &= ~bWaveShape;
    }
    
    if (pinFlag & bModNumber) {
        #if (UART_TRACE)
        printf("PinModNumber Pushed\r\n");
        #endif
        modNumber++;
        if (modNumber > MOD_NUMBER_MAX) {
            modNumber = 0;
        }
        pinFlag &= ~bModNumber;
    }
    
    if (pinFlag & bOctaveUp) {
        #if (UART_TRACE)
        printf("PinOctaveUp Pushed\r\n");
        #endif
        sequences[currentStep].setOctave(sequences[currentStep].getOctave() + 1);
        pinFlag &= ~bOctaveUp;
    }

    if (pinFlag & bOctaveDown) {
        #if (UART_TRACE)
        printf("PinOctaveDown Pushed\r\n");
        #endif
        sequences[currentStep].setOctave(sequences[currentStep].getOctave() - 1);
        pinFlag &= ~bOctaveDown;
    }
    
    if (pinFlag & bNoteOnOff) {
        #if (UART_TRACE)
        printf("PinNoteOnOff Pushed\r\n");
        #endif
        sequences[currentStep].setNoteOn(!sequences[currentStep].isNoteOn());
        pinFlag &= ~bNoteOnOff;
    }
    
    if (pinFlag & bTie) {
        #if (UART_TRACE)
        printf("PinTie Pushed\r\n");
        #endif
        sequences[currentStep].setTie(!sequences[currentStep].isTie());
        pinFlag &= ~bTie;
    }
    
    if (pinFlag & bAccent) {
        #if (UART_TRACE)
        printf("PinAccent Pushed\r\n");
        #endif
        sequences[currentStep].setAccent(!sequences[currentStep].isAccent());
        pinFlag &= ~bAccent;
    }
    
    if (pinFlag & bRunStop) {
        #if (UART_TRACE)
        printf("PinRunStop Pushed\r\n");
        #endif
        if (isRunning) {
            ampController.outDca(0);
            sequenceSender.stop();
            isRunning = false;
        } else {
            sequenceSender.run(currentStep);
            isRunning = true;
        }
        pinFlag &= ~bRunStop;
    }
}

void dumpToLCD()
{
    char buff[64];
    int col = 0;
    
    gLCD.clear();

    sprintf(buff, "Run:%d BPM:%03d", isRunning, sequenceSender.getBpm());
    gLCD.drawstring(0, col++, buff);

    sprintf(buff, "Stp:%02d Nto:%d Pch:%02d",
        currentStep, sequences[currentStep].isNoteOn(), sequences[currentStep].getPitch());
    gLCD.drawstring(0, col++, buff);
    
    sprintf(buff, "Oct:%-2d Tie:%d Acc:%d", 
        sequences[currentStep].getOctave(), sequences[currentStep].isTie(),sequences[currentStep].isAccent());
    gLCD.drawstring(0, col++, buff);

    sprintf(buff, "Wsp:%d Mdn:%d", sequenceSender.getWaveShape(), modNumber);
    gLCD.drawstring(0, col++, buff);
    
    sprintf(buff, "PW :%4d   CO :%4d", sequenceSender.getPulseWidth(), filterController.getCutoff());
    gLCD.drawstring(0, col++, buff);
    sprintf(buff, "RSO:%4d   ENV:%4d", filterController.getResonance(), envMod);
    gLCD.drawstring(0, col++, buff);
    sprintf(buff, "LVL:%4d   DUR:%4d", envelope.getLevel(), envelope.getDuration());
    gLCD.drawstring(0, col++, buff);
    sprintf(buff, "DCY:%4d   SUS:%4d", envelope.getDecay(), envelope.getSustain());
    gLCD.drawstring(0, col++, buff);
    
    gLCD.display();
}

//------------------------------------------------------------------------
// Main routine
//------------------------------------------------------------------------
int main()
{
    #if (UART_TRACE)
    printf("*** BaseMachine Sequencer ***\r\n");
    #endif
    
    //--------------------------------------------------------------------
    // Setup Devices
    //
    spiMaster.format(8, 0);
    spiMaster.frequency(SPI_RATE);
    
    // Mute output
    ampController.outDca(0);
    
    gLCD.begin(0x12);
    gLCD.clear();
    gLCD.drawstring(0, 0, TITLE_STR1);
    gLCD.drawstring(0, 1, TITLE_STR2);
    gLCD.display();
    Thread::wait(1000);
    
    RotEncStep.setInterval(100);
    RotEncPitch.setInterval(100);
    RotEncBpm.setInterval(100);
    
    PinWaveShape.attach_asserted(&swWaveShapePressed);
    PinWaveShape.setAssertValue(0);
    PinWaveShape.setSampleFrequency();  
    
    PinModNumber.attach_asserted(&swModNumberPressed);
    PinModNumber.setAssertValue(0);
    PinModNumber.setSampleFrequency();
    
    PinOctaveUp.attach_asserted(&swOctaveUpPressed);
    PinOctaveUp.setAssertValue(0);
    PinOctaveUp.setSampleFrequency();  

    PinOctaveDown.attach_asserted(&swOctaveDownPressed);
    PinOctaveDown.setAssertValue(0);
    PinOctaveDown.setSampleFrequency();
    
    PinNoteOnOff.attach_asserted(&swNoteOnOffPressed);
    PinNoteOnOff.setAssertValue(0);
    PinNoteOnOff.setSampleFrequency();  
    
    PinTie.attach_asserted(&swTiePressed);
    PinTie.setAssertValue(0);
    PinTie.setSampleFrequency();  
    
    PinAccent.attach_asserted(&swAccentPressed);
    PinAccent.setAssertValue(0);
    PinAccent.setSampleFrequency();    
    
    PinRunStop.attach_asserted(&swRunStopPressed);
    PinRunStop.setAssertValue(0);
    PinRunStop.setSampleFrequency(); 
    
    //--------------------------------------------------------------------
    // Initialize objects
    //
    Sequence::setBaseNoteNumber(baseNoteNumber);
    
    for (int i = 0; i < SEQUENCE_N; i++) {
        Sequence& seq = sequenceSender.getSequences()[i];
        seq.setPitch(pitch[i]);
        seq.setOctave(octave[i]);
        seq.setNoteOn(noteOn[i]);
        seq.setTie(tie[i]);
    }
    
    envelopeGenerator.init(envelope);

    sequenceSender.attachUpdate(&updateFunction);
    sequenceSender.setWaveShape(waveShape);
    //sequenceSender.run(0);
    
    //--------------------------------------------------------------------
    // Main loop
    //
    for (;;) {
        pollingPots();
        pollingRotEncs();
        pollingPins();
        if (!isRunning) {
            sequencerDisplay.update(SequencerDisplay::stop, currentStep);
            //dumpToLCD();
        }
    }
}