126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
#include <Arduino.h>
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#include <Keyboard.h>
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#include <MIDIUSB.h>
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#include <cstddef>
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#include "keyers.h"
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#include "adapter.h"
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#include "polybuzzer.h"
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#define MILLISECOND 1
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#define SECOND (1000 * MILLISECOND)
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VailAdapter::VailAdapter(unsigned int PiezoPin) {
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this->buzzer = new PolyBuzzer(PiezoPin);
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this->txToneFrequency = 440;
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}
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// Send a MIDI Key Event
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void VailAdapter::midiKey(uint8_t key, bool down) {
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midiEventPacket_t event = {uint8_t(down?9:8), uint8_t(down?0x90:0x80), key, 0x7f};
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MidiUSB.sendMIDI(event);
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MidiUSB.flush();
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}
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// Send a keyboard key event
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void VailAdapter::keyboardKey(uint8_t key, bool down) {
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if (down) {
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Keyboard.press(key);
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} else {
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Keyboard.release(key);
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}
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}
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// Begin transmitting
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void VailAdapter::BeginTx() {
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this->buzzer->Tone(0, this->txToneFrequency);
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if (this->keyboardMode) {
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this->keyboardKey(KEY_LEFT_CTRL, true);
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} else {
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this->midiKey(0, true);
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}
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}
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// Stop transmitting
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void VailAdapter::EndTx() {
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this->buzzer->NoTone(0);
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if (this->keyboardMode) {
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this->keyboardKey(KEY_LEFT_CTRL, false);
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} else {
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this->midiKey(0, false);
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}
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}
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// Handle a paddle being pressed.
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//
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// The caller needs to debounce keys and deal with keys wired in parallel.
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void VailAdapter::HandlePaddle(Paddle paddle, bool pressed) {
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switch (paddle) {
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case PADDLE_STRAIGHT:
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if (pressed) {
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this->BeginTx();
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} else {
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this->EndTx();
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}
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return;
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case PADDLE_DIT:
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if (this->keyer) {
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this->keyer->Key(paddle, pressed);
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} else if (this->keyboardMode) {
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this->keyboardKey(KEY_LEFT_CTRL, pressed);
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} else {
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this->midiKey(1, pressed);
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}
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break;
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case PADDLE_DAH:
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if (this->keyer) {
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this->keyer->Key(paddle, pressed);
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} else if (this->keyboardMode) {
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this->keyboardKey(KEY_RIGHT_CTRL, pressed);
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} else {
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this->midiKey(2, pressed);
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}
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break;
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}
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}
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// Handle a MIDI event.
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//
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// We act as a MIDI
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void VailAdapter::HandleMIDI(midiEventPacket_t event) {
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uint16_t msg = (event.byte1 << 8) | (event.byte2 << 0);
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switch (event.byte1) {
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case 0xB0: // Controller Change
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switch (event.byte2) {
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case 0: // turn keyboard mode on/off
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this->keyboardMode = (event.byte3 > 0x3f);
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MidiUSB.sendMIDI(event); // Send it back to acknowledge
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break;
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case 1: // set dit duration (0-254) *2ms
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this->ditDuration = event.byte3 * 2 * MILLISECOND;
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if (this->keyer) {
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this->keyer->SetDitDuration(this->ditDuration);
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}
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break;
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}
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break;
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case 0xC0: // Program Change
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if (this->keyer) {
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this->keyer->Release();
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}
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this->keyer = GetKeyerByNumber(event.byte2, this);
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this->keyer->SetDitDuration(this->ditDuration);
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break;
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case 0x80: // Note off
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this->buzzer->NoTone(1);
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break;
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case 0x90: // Note on
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this->buzzer->Note(1, event.byte2);
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break;
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}
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}
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void VailAdapter::Tick(unsigned millis) {
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if (this->keyer) {
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this->keyer->Tick(millis);
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}
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} |