This commit is contained in:
lathoub 2018-11-10 20:07:47 -05:00
parent c3f40ace79
commit 920fbe1644
3 changed files with 78 additions and 40 deletions

View File

@ -1,6 +1,3 @@
// Select your device
#define ESP32
#include "BleMidi.h"
BLEMIDI_CREATE_INSTANCE(bm);

View File

@ -14,9 +14,9 @@ class BleMidiInterface : public AbstractMidiInterface
{
protected:
// ESP32
BLEServer *pServer;
BLEAdvertising *pAdvertising;
BLECharacteristic *pCharacteristic;
BLEServer * _server;
BLEAdvertising * _advertising;
BLECharacteristic *_characteristic;
bool _connected;
@ -28,7 +28,7 @@ public:
void(*_disconnectedCallback)() = NULL;
protected:
void getMidiTimestamp (uint8_t *header, uint8_t *timestamp)
inline static void getMidiTimestamp (uint8_t *header, uint8_t *timestamp)
{
/*
The first byte of all BLE packets must be a header byte. This is followed by timestamp bytes and MIDI messages.
@ -74,6 +74,9 @@ protected:
*timestamp = (currentTimeStamp & 0x7F) | 0x80; // 7 bits plus MSB
}
// serialize towards hardware
void serialize(DataByte b1)
{
getMidiTimestamp(&_midiPacket[0], &_midiPacket[1]);
@ -82,8 +85,8 @@ protected:
// TODO: quid running status
pCharacteristic->setValue(_midiPacket, 3);
pCharacteristic->notify();
_characteristic->setValue(_midiPacket, 3);
_characteristic->notify();
};
void serialize(DataByte b1, DataByte b2)
@ -95,8 +98,8 @@ protected:
// TODO: quid running status
pCharacteristic->setValue(_midiPacket, 4);
pCharacteristic->notify();
_characteristic->setValue(_midiPacket, 4);
_characteristic->notify();
};
void serialize(DataByte b1, DataByte b2, DataByte b3)
@ -109,8 +112,8 @@ protected:
// TODO: quid running status
pCharacteristic->setValue(_midiPacket, 5);
pCharacteristic->notify();
_characteristic->setValue(_midiPacket, 5);
_characteristic->notify();
};
@ -123,10 +126,17 @@ public:
{
}
// TODO why must these functions be inline??
inline bool begin(const char* deviceName);
inline void receive(uint8_t *buffer, uint8_t bufferSize);
inline void run()
{
// n/a, data comes in async (see onWrite callbacks)
}
inline void receive(uint8_t *buffer, uint8_t bufferSize);
void onConnected(void(*fptr)()) {
_connected = true;
_connectedCallback = fptr;
@ -146,12 +156,12 @@ public:
protected:
BleMidiInterface* _bleMidiInterface;
void onConnect(BLEServer* pServer) {
void onConnect(BLEServer* server) {
if (_bleMidiInterface->_connectedCallback)
_bleMidiInterface->_connectedCallback();
};
void onDisconnect(BLEServer* pServer) {
void onDisconnect(BLEServer* server) {
if (_bleMidiInterface->_disconnectedCallback)
_bleMidiInterface->_disconnectedCallback();
}
@ -162,11 +172,12 @@ public:
MyCharacteristicCallbacks(BleMidiInterface* bleMidiInterface) {
_bleMidiInterface = bleMidiInterface;
}
protected:
BleMidiInterface* _bleMidiInterface;
void onWrite(BLECharacteristic *pCharacteristic) {
std::string rxValue = pCharacteristic->getValue();
void onWrite(BLECharacteristic * characteristic) {
std::string rxValue = characteristic->getValue();
if (rxValue.length() > 0) {
_bleMidiInterface->receive((uint8_t *)(rxValue.c_str()), rxValue.length());
}
@ -177,23 +188,23 @@ bool BleMidiInterface::begin(const char* deviceName)
{
BLEDevice::init(deviceName);
pServer = BLEDevice::createServer();
pServer->setCallbacks(new MyServerCallbacks(this));
_server = BLEDevice::createServer();
_server->setCallbacks(new MyServerCallbacks(this));
// Create the BLE Service
auto pService = pServer->createService(BLEUUID(SERVICE_UUID));
auto service = _server->createService(BLEUUID(SERVICE_UUID));
// Create a BLE Characteristic
pCharacteristic = pService->createCharacteristic(
_characteristic = service->createCharacteristic(
BLEUUID(CHARACTERISTIC_UUID),
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE |
BLECharacteristic::PROPERTY_NOTIFY |
BLECharacteristic::PROPERTY_WRITE_NR
);
pCharacteristic->setCallbacks(new MyCharacteristicCallbacks(this));
_characteristic->setCallbacks(new MyCharacteristicCallbacks(this));
// Start the service
pService->start();
service->start();
auto advertisementData = BLEAdvertisementData();
advertisementData.setFlags(0x04);
@ -201,9 +212,9 @@ bool BleMidiInterface::begin(const char* deviceName)
advertisementData.setName(deviceName);
// Start advertising
pAdvertising = pServer->getAdvertising();
pAdvertising->setAdvertisementData(advertisementData);
pAdvertising->start();
_advertising = _server->getAdvertising();
_advertising->setAdvertisementData(advertisementData);
_advertising->start();
return true;
}
@ -275,8 +286,8 @@ void BleMidiInterface::receive(uint8_t *buffer, uint8_t bufferSize)
// TODO: switch for type
if (_noteOnCallback)
_noteOnCallback(0, 1, 2);
if (_noteOnCallback) // if an attached function exisist, call it here
_noteOnCallback(0, 1, 2);
// MIDI.send(command, buffer[lPtr + 1], buffer[lPtr + 2], channel);
} else {

View File

@ -71,6 +71,7 @@ typedef byte MIDI_PRESSURE;
enum MidiType : uint8_t
{
InvalidType = 0x00, ///< For notifying errors
NoteOff = 0x80, ///< Note Off
NoteOn = 0x90, ///< Note On
AfterTouchPoly = 0xA0, ///< Polyphonic AfterTouch
@ -78,13 +79,16 @@ enum MidiType : uint8_t
ProgramChange = 0xC0, ///< Program Change
AfterTouchChannel = 0xD0, ///< Channel (monophonic) AfterTouch
PitchBend = 0xE0, ///< Pitch Bend
SystemExclusive = 0xF0, ///< System Exclusive
SystemExclusiveStart = SystemExclusive,
SystemExclusiveEnd = 0xF7, ///< System Exclusive End
TimeCodeQuarterFrame = 0xF1, ///< System Common - MIDI Time Code Quarter Frame
SongPosition = 0xF2, ///< System Common - Song Position Pointer
SongSelect = 0xF3, ///< System Common - Song Select
TuneRequest = 0xF6, ///< System Common - Tune Request
Clock = 0xF8, ///< System Real Time - Timing Clock
Tick = 0xF9, ///< System Real Time - Tick
Start = 0xFA, ///< System Real Time - Start
@ -311,44 +315,61 @@ public:
send(MidiType::AfterTouchChannel, note, pressure, channel);
}
void sendSysEx(const byte*, uint16_t inLength) {
// TODO
}
void sendTimeCodeQuarterFrame(DataByte typeNibble, DataByte valuesNibble) {
// TODO f(typeNibble, valuesNibble);
send(MidiType::TimeCodeQuarterFrame);
}
void sendTimeCodeQuarterFrame(DataByte data) {
send(MidiType::TimeCodeQuarterFrame, data);
}
void sendSongPosition(unsigned short beats) {
send(MidiType::SongPosition, beats);
}
void sendSongSelect(DataByte number) {
send(MidiType::SongSelect, number);
}
void sendTuneRequest() {
send(MidiType::TuneRequest);
}
void sendActiveSensing() {
}
send(MidiType::ActiveSensing);
}
void sendStart() {
send(MidiType::Start);
}
void sendContinue() {
}
send(MidiType::Continue);
}
void sendStop() {
send(MidiType::Stop);
}
void sendClock() {
send(MidiType::Clock);
}
void sendTick() {
send(MidiType::Tick);
}
void sendReset() {
send(MidiType::SystemReset);
}
void sendClock() {
}
void sendTick() {
}
//receiving
void setHandleNoteOn(void (*fptr)(byte channel, byte note, byte velocity)) {
@ -418,8 +439,10 @@ protected:
return; // Don't send anything
}
if (type <= MidiType::PitchBend) // Channel messages
if (type <= MidiType::PitchBend)
{
// Channel messages
// Protection: remove MSBs on data
data1 &= 0x7f;
data2 &= 0x7f;
@ -437,22 +460,29 @@ protected:
}
else if (type >= MidiType::Clock && type <= MidiType::SystemReset)
{
serialize(type); // System Real-time and 1 byte.
send(type); // System Real-time and 1 byte.
}
}
// SystemCommon message
virtual void send(MidiType type, DataByte data1, DataByte data2)
virtual void send(MidiType type, DataByte data1)
{
}
// realTime
// realTime messages
virtual void send(MidiType type)
{
}
virtual bool begin(const char*) = 0;
virtual void run() = 0;
// serialize from the hardware
// serialize towards to hardware
virtual void serialize(DataByte) = 0;
virtual void serialize(DataByte, DataByte) = 0;
virtual void serialize(DataByte, DataByte, DataByte) = 0;