USBMIDI.h

#include "soc/soc_caps.h"
#if SOC_USB_OTG_SUPPORTED
#include "esp32-hal-tinyusb.h"
#include "sdkconfig.h"

#if CONFIG_TINYUSB_MIDI_ENABLED

#pragma once

#define MIDI_EP_HEADER_CN_GET(x) (x >> 4)
#define MIDI_EP_HEADER_CIN_GET(x) ((midi_code_index_number_t)((x)&0xF))

typedef struct {
    uint8_t header;
    uint8_t byte1;
    uint8_t byte2;
    uint8_t byte3;
} midiEventPacket_t;

class USBMIDI {
public:
    USBMIDI(void);
    void begin(void);
    void end(void);

    /* User-level API */

    // Note On
    void noteOn(uint8_t note, uint8_t velocity = 0, uint8_t channel = 1);
    // Note Off
    void noteOff(uint8_t note, uint8_t velocity = 0, uint8_t channel = 1);
    // Program Change
    void programChange(uint8_t inProgramNumber, uint8_t channel = 1);
    // Control Change (Continuous Controller)
    void controlChange(uint8_t inControlNumber, uint8_t inControlValue = 0, uint8_t channel = 1);
    // Polyphonic Key Pressure (Aftertouch)
    void polyPressure(uint8_t note, uint8_t pressure, uint8_t channel = 1);
    // Channel Pressure (Aftertouch)
    void channelPressure(uint8_t pressure, uint8_t channel = 1);
    // Pitch Bend Change [-8192,0,8191]
    void pitchBend(int16_t pitchBendValue, uint8_t channel = 1);
    // Pitch Bend Change [0,8192,16383]
    void pitchBend(uint16_t pitchBendValue, uint8_t channel = 1);
    // Pitch Bend Change [-1.0,0,1.0]
    void pitchBend(double pitchBendValue, uint8_t channel = 1);

    /* USB MIDI 1.0 interface */

    // Attempt to read a USB MIDI packet from the USB Bus
    bool readPacket(midiEventPacket_t *packet);
    // Attempt to write a USB MIDI packet to the USB Bus
    bool writePacket(midiEventPacket_t *packet);

    /* Serial MIDI 1.0 interface */

    // Write a Serial MIDI byte (status or data) to the USB Bus
    size_t write(uint8_t c);
};

#endif /* CONFIG_TINYUSB_MIDI_ENABLED */
#endif /* SOC_USB_OTG_SUPPORTED */