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initial upload

This commit is contained in:
lathoub 2019-08-15 14:44:11 +02:00
parent 01edf0c6be
commit 253f3e4b51
13 changed files with 360 additions and 498 deletions
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27
examples/Esp32_NoteOnOffEverySec/Esp32_NoteOnOffEverySec.ino → examples/MidiBle/MidiBle.ino
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@ -1,6 +1,11 @@
#include "BleMidi.h" #include <MIDI.h>
BLEMIDI_CREATE_INSTANCE(bm); #include <midi_bleTransport.h>
#include <Ble_esp32.h>
bleMidi::BluetoothEsp32 sBluetoothEsp32;
bleMidi::BleMidiTransport<bleMidi::BluetoothEsp32> bm((bleMidi::BluetoothEsp32&) sBluetoothEsp32);
midi::MidiInterface<bleMidi::BleMidiTransport<bleMidi::BluetoothEsp32>> MIDI((bleMidi::BleMidiTransport<bleMidi::BluetoothEsp32>&)bm);
// ----------------------------------------------------------------------------- // -----------------------------------------------------------------------------
// //
@ -9,17 +14,15 @@ void setup()
{ {
// Serial communications and wait for port to open: // Serial communications and wait for port to open:
Serial.begin(115200); Serial.begin(115200);
while (!Serial) { while (!Serial);
; // wait for serial port to connect. Needed for Leonardo only
}
bm.begin("hehe"); MIDI.begin("hihi", 1);
bm.onConnected(OnBleMidiConnected); bm.onConnected(OnBleMidiConnected);
bm.onDisconnected(OnBleMidiDisconnected); bm.onDisconnected(OnBleMidiDisconnected);
bm.setHandleNoteOn(OnBleMidiNoteOn); MIDI.setHandleNoteOn(OnBleMidiNoteOn);
bm.setHandleNoteOff(OnBleMidiNoteOff); MIDI.setHandleNoteOff(OnBleMidiNoteOff);
Serial.println(F("looping")); Serial.println(F("looping"));
} }
@ -29,8 +32,10 @@ void setup()
// ----------------------------------------------------------------------------- // -----------------------------------------------------------------------------
void loop() void loop()
{ {
bm.sendNoteOn(60, 127, 1); // note 60, velocity 127 on channel 1 MIDI.read();
bm.sendNoteOff(60, 127, 1);
MIDI.sendNoteOn(60, 127, 1); // note 60, velocity 127 on channel 1
MIDI.sendNoteOff(60, 127, 1);
delay(1000); delay(1000);
} }
@ -78,4 +83,4 @@ void OnBleMidiNoteOff(byte channel, byte note, byte velocity) {
Serial.print(F(" velocity:")); Serial.print(F(" velocity:"));
Serial.print(velocity); Serial.print(velocity);
Serial.println(); Serial.println();
} }

7
keywords.txt
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@ -1,12 +1,13 @@
####################################### #######################################
# Syntax Coloring Map for AppleMIDI # Syntax Coloring Map for BLEMIDI
####################################### #######################################
####################################### #######################################
# Datatypes (KEYWORD1) # Datatypes (KEYWORD1)
####################################### #######################################
BLEMIDI KEYWORD1 midi_bleTransport KEYWORD1
BLEMIDI.h KEYWORD1 midi_bleTransport.h KEYWORD1
Ble_esp32.h KEYWORD1
####################################### #######################################
# Methods and Functions (KEYWORD2) # Methods and Functions (KEYWORD2)

15
library.properties
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@ -1,10 +1,11 @@
name=BLE-MIDI name=MIDI BLE Library
version=0.0.1 version=2.0.0
author=lathoub author=lathoub
maintainer=lathoub <lathoub@gmail.com> maintainer=lathoub
sentence=MIDI over Bluetooth Low Energy (BLE-MIDI) 1.0 for Arduino sentence=BLE MIDI I/Os for Arduino
paragraph=MIDI over Bluetooth Low Energy paragraph=Read & send MIDI messages over BLE
category=Communication category=Communication
url=https://github.com/lathoub/Arduino-BLE-MIDI url=
architectures=* architectures=*
includes=BLEMIDI.h includes=midi_bleTransport.h
dependency=https://github.com/FortySevenEffects/arduino_midi_library

1
src/BleMidi.cpp
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@ -1 +0,0 @@
#include "BleMidi.h"

15
src/BleMidi.h
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@ -1,15 +0,0 @@
/*!
* @file BleMidi.h
*/
#pragma once
#include "utility/BleMidi_Settings.h"
#include "utility/BleMidi_Defs.h"
#define SERVICE_UUID "03b80e5a-ede8-4b33-a751-6ce34ec4c700"
#define CHARACTERISTIC_UUID "7772e5db-3868-4112-a1a9-f2669d106bf3"
#if defined(ESP32)
#include "Ble_esp32.h"
#endif

532
src/Ble_esp32.h Normal file → Executable file
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@ -1,395 +1,137 @@
#pragma once #pragma once
// Headers for ESP32 BLE // Headers for ESP32 BLE
#include <BLEDevice.h> #include <BLEDevice.h>
#include <BLEUtils.h> #include <BLEUtils.h>
#include <BLEServer.h> #include <BLEServer.h>
#include <BLE2902.h> #include <BLE2902.h>
#include "common/midiCommon.h" #define SERVICE_UUID "03b80e5a-ede8-4b33-a751-6ce34ec4c700"
using namespace Midi; #define CHARACTERISTIC_UUID "7772e5db-3868-4112-a1a9-f2669d106bf3"
BEGIN_BLEMIDI_NAMESPACE BEGIN_BLEMIDI_NAMESPACE
class BleMidiInterface : public MidiCommonInterface class BluetoothEsp32
{ {
protected: private:
// ESP32 BLEServer* _server;
BLEServer * _server; BLEAdvertising* _advertising;
BLEAdvertising * _advertising; BLECharacteristic* _characteristic;
BLECharacteristic *_characteristic;
BleMidiTransport<class BluetoothEsp32>* _bleMidiTransport;
bool _connected;
public:
uint8_t _midiPacket[5]; // outgoing BluetoothEsp32()
: _server(NULL),
public: _advertising(NULL),
// callbacks _characteristic(NULL),
void(*_connectedCallback)() = NULL; _bleMidiTransport(NULL)
void(*_disconnectedCallback)() = NULL; {
}
protected:
inline static void getMidiTimestamp (uint8_t *header, uint8_t *timestamp) ~BluetoothEsp32()
{ {
/* }
The first byte of all BLE packets must be a header byte. This is followed by timestamp bytes and MIDI messages.
Header Byte bool begin(const char*, BleMidiTransport<class BluetoothEsp32>*);
bit 7 Set to 1.
bit 6 Set to 0. (Reserved for future use) inline void write(uint8_t* data, uint8_t length)
bits 5-0 timestampHigh:Most significant 6 bits of timestamp information. {
The header byte contains the topmost 6 bits of timing information for MIDI events in the BLE _characteristic->setValue(data, length);
packet. The remaining 7 bits of timing information for individual MIDI messages encoded in a _characteristic->notify();
packet is expressed by timestamp bytes. }
Timestamp Byte
bit 7 Set to 1. inline void receive(uint8_t* buffer, uint8_t length)
bits 6-0 timestampLow: Least Significant 7 bits of timestamp information. {
The 13-bit timestamp for the first MIDI message in a packet is calculated using 6 bits from the _bleMidiTransport->receive(buffer, length);
header byte and 7 bits from the timestamp byte. }
Timestamps are 13-bit values in milliseconds, and therefore the maximum value is 8,191 ms.
Timestamps must be issued by the sender in a monotonically increasing fashion. inline void connected()
timestampHigh is initially set using the lower 6 bits from the header byte while the timestampLow is {
formed of the lower 7 bits from the timestamp byte. Should the timestamp value of a subsequent if (_bleMidiTransport->_connectedCallback)
MIDI message in the same packet overflow/wrap (i.e., the timestampLow is smaller than a _bleMidiTransport->_connectedCallback();
preceding timestampLow), the receiver is responsible for tracking this by incrementing the }
timestampHigh by one (the incremented value is not transmitted, only understood as a result of the
overflow condition). inline void disconnected()
In practice, the time difference between MIDI messages in the same BLE packet should not span {
more than twice the connection interval. As a result, a maximum of one overflow/wrap may occur if (_bleMidiTransport->_disconnectedCallback)
per BLE packet. _bleMidiTransport->_disconnectedCallback();
Timestamps are in the sender’s clock domain and are not allowed to be scheduled in the future. }
Correlation between the receiver’s clock and the received timestamps must be performed to };
ensure accurate rendering of MIDI messages, and is not addressed in this document.
*/ class MyServerCallbacks: public BLEServerCallbacks {
/* public:
Calculating a Timestamp MyServerCallbacks(BluetoothEsp32* bluetoothEsp32)
To calculate the timestamp, the built-in millis() is used. : _bluetoothEsp32(bluetoothEsp32) {
The BLE standard only specifies 13 bits worth of millisecond data though, }
so it’s bitwise anded with 0x1FFF for an ever repeating cycle of 13 bits.
This is done right after a MIDI message is detected. It’s split into a 6 upper bits, 7 lower bits, protected:
and the MSB of both bytes are set to indicate that this is a header byte. BluetoothEsp32* _bluetoothEsp32;
Both bytes are placed into the first two position of an array in preparation for a MIDI message.
*/ void onConnect(BLEServer* server) {
auto currentTimeStamp = millis() & 0x01FFF; _bluetoothEsp32->connected();
};
*header = ((currentTimeStamp >> 7) & 0x3F) | 0x80; // 6 bits plus MSB
*timestamp = (currentTimeStamp & 0x7F) | 0x80; // 7 bits plus MSB void onDisconnect(BLEServer* server) {
} _bluetoothEsp32->disconnected();
}
};
// serialize towards hardware
class MyCharacteristicCallbacks: public BLECharacteristicCallbacks {
void write(DataByte b1) public:
{ MyCharacteristicCallbacks(BluetoothEsp32* bluetoothEsp32)
getMidiTimestamp(&_midiPacket[0], &_midiPacket[1]); : _bluetoothEsp32(bluetoothEsp32 ) {
}
_midiPacket[2] = b1;
protected:
// TODO: quid running status BluetoothEsp32* _bluetoothEsp32;
_characteristic->setValue(_midiPacket, 3); void onWrite(BLECharacteristic * characteristic) {
_characteristic->notify(); std::string rxValue = characteristic->getValue();
}; if (rxValue.length() > 0) {
_bluetoothEsp32->receive((uint8_t *)(rxValue.c_str()), rxValue.length());
void write(DataByte b1, DataByte b2) }
{ }
getMidiTimestamp(&_midiPacket[0], &_midiPacket[1]); };
_midiPacket[2] = b1; bool BluetoothEsp32::begin(const char* deviceName, BleMidiTransport<class BluetoothEsp32>* bleMidiTransport)
_midiPacket[3] = b2; {
_bleMidiTransport = bleMidiTransport;
// TODO: quid running status
BLEDevice::init(deviceName);
_characteristic->setValue(_midiPacket, 4);
_characteristic->notify(); _server = BLEDevice::createServer();
}; _server->setCallbacks(new MyServerCallbacks(this));
void write(DataByte b1, DataByte b2, DataByte b3) // Create the BLE Service
{ auto service = _server->createService(BLEUUID(SERVICE_UUID));
getMidiTimestamp(&_midiPacket[0], &_midiPacket[1]);
// Create a BLE Characteristic
_midiPacket[2] = b1; _characteristic = service->createCharacteristic(
_midiPacket[3] = b2; BLEUUID(CHARACTERISTIC_UUID),
_midiPacket[4] = b3; BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE |
// TODO: quid running status BLECharacteristic::PROPERTY_NOTIFY |
BLECharacteristic::PROPERTY_WRITE_NR
_characteristic->setValue(_midiPacket, 5); );
_characteristic->notify(); // Add CCCD 0x2902 to allow notify
}; _characteristic->addDescriptor(new BLE2902());
_characteristic->setCallbacks(new MyCharacteristicCallbacks(this));
public: // Start the service
BleMidiInterface() service->start();
{
} auto advertisementData = BLEAdvertisementData();
advertisementData.setFlags(0x04);
~BleMidiInterface() advertisementData.setCompleteServices(BLEUUID(SERVICE_UUID));
{ advertisementData.setName(deviceName);
}
// Start advertising
// TODO why must these functions be inline?? _advertising = _server->getAdvertising();
_advertising->setAdvertisementData(advertisementData);
inline bool begin(const char* deviceName); _advertising->start();
inline void read() return true;
{ }
// n/a no need to call read() in loop, as incoming data comes in async via onWrite
} END_BLEMIDI_NAMESPACE
inline void sendMIDI(StatusByte, DataByte data1 = 0, DataByte data2 = 0);
inline void receive(uint8_t *buffer, uint8_t bufferSize);
void onConnected(void(*fptr)()) {
_connected = true;
_connectedCallback = fptr;
}
void onDisconnected(void(*fptr)()) {
_connected = false;
_disconnectedCallback = fptr;
}
};
class MyServerCallbacks: public BLEServerCallbacks {
public:
MyServerCallbacks(BleMidiInterface* bleMidiInterface) {
_bleMidiInterface = bleMidiInterface;
}
protected:
BleMidiInterface* _bleMidiInterface;
void onConnect(BLEServer* server) {
if (_bleMidiInterface->_connectedCallback)
_bleMidiInterface->_connectedCallback();
};
void onDisconnect(BLEServer* server) {
if (_bleMidiInterface->_disconnectedCallback)
_bleMidiInterface->_disconnectedCallback();
}
};
class MyCharacteristicCallbacks: public BLECharacteristicCallbacks {
public:
MyCharacteristicCallbacks(BleMidiInterface* bleMidiInterface) {
_bleMidiInterface = bleMidiInterface;
}
protected:
BleMidiInterface* _bleMidiInterface;
void onWrite(BLECharacteristic * characteristic) {
std::string rxValue = characteristic->getValue();
if (rxValue.length() > 0) {
_bleMidiInterface->receive((uint8_t *)(rxValue.c_str()), rxValue.length());
}
}
};
bool BleMidiInterface::begin(const char* deviceName)
{
BLEDevice::init(deviceName);
_server = BLEDevice::createServer();
_server->setCallbacks(new MyServerCallbacks(this));
// Create the BLE Service
auto service = _server->createService(BLEUUID(SERVICE_UUID));
// Create a BLE Characteristic
_characteristic = service->createCharacteristic(
BLEUUID(CHARACTERISTIC_UUID),
BLECharacteristic::PROPERTY_READ |
BLECharacteristic::PROPERTY_WRITE |
BLECharacteristic::PROPERTY_NOTIFY |
BLECharacteristic::PROPERTY_WRITE_NR
);
// Add CCCD 0x2902 to allow notify
_characteristic->addDescriptor(new BLE2902());
_characteristic->setCallbacks(new MyCharacteristicCallbacks(this));
// Start the service
service->start();
auto advertisementData = BLEAdvertisementData();
advertisementData.setFlags(0x04);
advertisementData.setCompleteServices(BLEUUID(SERVICE_UUID));
advertisementData.setName(deviceName);
// Start advertising
_advertising = _server->getAdvertising();
_advertising->setAdvertisementData(advertisementData);
_advertising->start();
return true;
}
void BleMidiInterface::sendMIDI(StatusByte status, DataByte data1, DataByte data2)
{
MidiType type = getTypeFromStatusByte(status);
Channel channel = getChannelFromStatusByte(status);
switch (type) {
case NoteOff:
if (_noteOffCallback) _noteOffCallback(channel, data1, data2);
break;
case NoteOn:
if (_noteOnCallback) _noteOnCallback(channel, data1, data2);
break;
case AfterTouchPoly:
if (_afterTouchPolyCallback) _afterTouchPolyCallback(channel, data1, data2);
break;
case ControlChange:
if (_controlChangeCallback) _controlChangeCallback(channel, data1, data2);
break;
case ProgramChange:
if (_programChangeCallback) _programChangeCallback(channel, data1);
break;
case AfterTouchChannel:
if (_afterTouchChannelCallback) _afterTouchChannelCallback(channel, data1);
break;
case PitchBend:
if (_pitchBendCallback) {
int value = (int) ((data1 & 0x7f) | ((data2 & 0x7f) << 7)) + MIDI_PITCHBEND_MIN;
_pitchBendCallback(channel, value);
}
break;
case SystemExclusive:
break;
case TimeCodeQuarterFrame:
if (_timeCodeQuarterFrameCallback) _timeCodeQuarterFrameCallback(data1);
break;
case SongPosition:
if (_songPositionCallback) {
unsigned short value = unsigned((data1 & 0x7f) | ((data2 & 0x7f) << 7));
_songPositionCallback(value);
}
break;
case SongSelect:
if (_songSelectCallback) _songSelectCallback(data1);
break;
case TuneRequest:
if (_tuneRequestCallback) _tuneRequestCallback();
break;
case Clock:
if (_clockCallback) _clockCallback();
break;
case Tick:
break;
case Start:
if (_startCallback) _startCallback();
break;
case Continue:
if (_continueCallback) _continueCallback();
break;
case Stop:
if (_stopCallback) _stopCallback();
break;
case ActiveSensing:
if (_activeSensingCallback) _activeSensingCallback();
break;
case SystemReset:
if (_resetCallback) _resetCallback();
break;
}
}
void BleMidiInterface::receive(uint8_t *buffer, uint8_t bufferSize)
{
/*
The general form of a MIDI message follows:
n-byte MIDI Message
Byte 0 MIDI message Status byte, Bit 7 is Set to 1.
Bytes 1 to n-1 MIDI message Data bytes, if n > 1. Bit 7 is Set to 0
There are two types of MIDI messages that can appear in a single packet: full MIDI messages and
Running Status MIDI messages. Each is encoded differently.
A full MIDI message is simply the MIDI message with the Status byte included.
A Running Status MIDI message is a MIDI message with the Status byte omitted. Running Status
MIDI messages may only be placed in the data stream if the following criteria are met:
1. The original MIDI message is 2 bytes or greater and is not a System Common or System
Real-Time message.
2. The omitted Status byte matches the most recently preceding full MIDI message’s Status
byte within the same BLE packet.
In addition, the following rules apply with respect to Running Status:
1. A Running Status MIDI message is allowed within the packet after at least one full MIDI
message.
2. Every MIDI Status byte must be preceded by a timestamp byte. Running Status MIDI
messages may be preceded by a timestamp byte. If a Running Status MIDI message is not
preceded by a timestamp byte, the timestamp byte of the most recently preceding message
in the same packet is used.
3. System Common and System Real-Time messages do not cancel Running Status if
interspersed between Running Status MIDI messages. However, a timestamp byte must
precede the Running Status MIDI message that follows.
4. The end of a BLE packet does cancel Running Status.
In the MIDI 1.0 protocol, System Real-Time messages can be sent at any time and may be
inserted anywhere in a MIDI data stream, including between Status and Data bytes of any other
MIDI messages. In the MIDI BLE protocol, the System Real-Time messages must be deinterleaved
from other messages – except for System Exclusive messages.
*/
//Pointers used to search through payload.
uint8_t lPtr = 0;
uint8_t rPtr = 0;
//lastStatus used to capture runningStatus
uint8_t lastStatus;
//Decode first packet -- SHALL be "Full MIDI message"
lPtr = 2; //Start at first MIDI status -- SHALL be "MIDI status"
//While statement contains incrementing pointers and breaks when buffer size exceeded.
while(1){
lastStatus = buffer[lPtr];
if( (buffer[lPtr] < 0x80) ){
//Status message not present, bail
return;
}
//Point to next non-data byte
rPtr = lPtr;
while( (buffer[rPtr + 1] < 0x80)&&(rPtr < (bufferSize - 1)) ){
rPtr++;
}
//look at l and r pointers and decode by size.
if( rPtr - lPtr < 1 ){
//Time code or system
sendMIDI(lastStatus);
} else if( rPtr - lPtr < 2 ) {
sendMIDI(lastStatus, buffer[lPtr + 1]);
} else if( rPtr - lPtr < 3 ) {
sendMIDI(lastStatus, buffer[lPtr + 1], buffer[lPtr + 2]);
} else {
//Too much data
//If not System Common or System Real-Time, send it as running status
switch( buffer[lPtr] & 0xF0 )
{
case NoteOff:
case NoteOn:
case AfterTouchPoly:
case ControlChange:
case PitchBend:
for(int i = lPtr; i < rPtr; i = i + 2)
sendMIDI(lastStatus, buffer[i + 1], buffer[i + 2]);
break;
case ProgramChange:
case AfterTouchChannel:
for(int i = lPtr; i < rPtr; i = i + 1)
sendMIDI(lastStatus, buffer[i + 1]);
break;
default:
break;
}
}
//Point to next status
lPtr = rPtr + 2;
if(lPtr >= bufferSize){
//end of packet
return;
}
}
}
END_BLEMIDI_NAMESPACE

1
src/common

@ -1 +0,0 @@
Subproject commit 8f745084c39e6016f0ea7afad95973342c6f7e0e

1
src/midi_bleTransport.cpp Executable file
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@ -0,0 +1 @@
#include "midi_bleTransport.h"

129
src/midi_bleTransport.h Executable file
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@ -0,0 +1,129 @@
/*!
* @file midi_bleTransport.h
*/
#pragma once
#include "utility/midi_bleSettings.h"
#include "utility/midi_bleDefs.h"
#include <midi_RingBuffer.h>
BEGIN_BLEMIDI_NAMESPACE
template<class BleClass>
class BleMidiTransport
{
private:
uint8_t _midiPacket[5]; // outgoing
typedef midi::RingBuffer<byte, 44> TxBuffer;
typedef midi::RingBuffer<byte, 44> RxBuffer;
TxBuffer mTxBuffer;
RxBuffer mRxBuffer;
bool _connected;
private:
BleClass& mBleClass;
public:
inline BleMidiTransport(BleClass& inBleClass)
: mBleClass(inBleClass)
{
}
inline ~BleMidiTransport() {}
inline bool begin(int baudrate) {} // n/a
inline bool begin(const char* deviceName)
{
return mBleClass.begin(deviceName, this);
}
inline unsigned available() { return mRxBuffer.getLength(); }
inline byte read() { return mRxBuffer.read(); }
inline void beginWrite() { mTxBuffer.clear(); }
inline void write(byte inData) { mTxBuffer.write(inData); }
inline void endWrite()
{
getMidiTimestamp(&_midiPacket[0], &_midiPacket[1]);
mTxBuffer.read(_midiPacket + 2, mTxBuffer.getLength());
mBleClass.write((uint8_t*)_midiPacket, mTxBuffer.getLength() + 2);
}
public:
void receive(uint8_t* buffer, uint8_t length)
{
mRxBuffer.read(buffer, length);
}
protected:
/*
The first byte of all BLE packets must be a header byte. This is followed by timestamp bytes and MIDI messages.
Header Byte
bit 7 Set to 1.
bit 6 Set to 0. (Reserved for future use)
bits 5-0 timestampHigh:Most significant 6 bits of timestamp information.
The header byte contains the topmost 6 bits of timing information for MIDI events in the BLE
packet. The remaining 7 bits of timing information for individual MIDI messages encoded in a
packet is expressed by timestamp bytes.
Timestamp Byte
bit 7 Set to 1.
bits 6-0 timestampLow: Least Significant 7 bits of timestamp information.
The 13-bit timestamp for the first MIDI message in a packet is calculated using 6 bits from the
header byte and 7 bits from the timestamp byte.
Timestamps are 13-bit values in milliseconds, and therefore the maximum value is 8,191 ms.
Timestamps must be issued by the sender in a monotonically increasing fashion.
timestampHigh is initially set using the lower 6 bits from the header byte while the timestampLow is
formed of the lower 7 bits from the timestamp byte. Should the timestamp value of a subsequent
MIDI message in the same packet overflow/wrap (i.e., the timestampLow is smaller than a
preceding timestampLow), the receiver is responsible for tracking this by incrementing the
timestampHigh by one (the incremented value is not transmitted, only understood as a result of the
overflow condition).
In practice, the time difference between MIDI messages in the same BLE packet should not span
more than twice the connection interval. As a result, a maximum of one overflow/wrap may occur
per BLE packet.
Timestamps are in the sender’s clock domain and are not allowed to be scheduled in the future.
Correlation between the receiver’s clock and the received timestamps must be performed to
ensure accurate rendering of MIDI messages, and is not addressed in this document.
*/
/*
Calculating a Timestamp
To calculate the timestamp, the built-in millis() is used.
The BLE standard only specifies 13 bits worth of millisecond data though,
so it’s bitwise anded with 0x1FFF for an ever repeating cycle of 13 bits.
This is done right after a MIDI message is detected. It’s split into a 6 upper bits, 7 lower bits,
and the MSB of both bytes are set to indicate that this is a header byte.
Both bytes are placed into the first two position of an array in preparation for a MIDI message.
*/
inline static void getMidiTimestamp (uint8_t *header, uint8_t *timestamp)
{
auto currentTimeStamp = millis() & 0x01FFF;
*header = ((currentTimeStamp >> 7) & 0x3F) | 0x80; // 6 bits plus MSB
*timestamp = (currentTimeStamp & 0x7F) | 0x80; // 7 bits plus MSB
}
public:
// callbacks
void(*_connectedCallback)() = NULL;
void(*_disconnectedCallback)() = NULL;
public:
void onConnected(void(*fptr)()) {
_connected = true;
_connectedCallback = fptr;
}
void onDisconnected(void(*fptr)()) {
_connected = false;
_disconnectedCallback = fptr;
}
};
END_BLEMIDI_NAMESPACE

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src/utility/.DS_Store vendored
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50
src/utility/BleMidi_Defs.h → src/utility/midi_bleDefs.h Normal file → Executable file
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@ -1,25 +1,25 @@
#pragma once #pragma once
#include "BleMidi_Namespace.h" #include "midi_bleNamespace.h"
#if ARDUINO #if ARDUINO
#include <Arduino.h> #include <Arduino.h>
#else #else
#include <inttypes.h> #include <inttypes.h>
typedef uint8_t byte; typedef uint8_t byte;
#endif #endif
BEGIN_BLEMIDI_NAMESPACE BEGIN_BLEMIDI_NAMESPACE
/*! \brief Create an instance of the library /*! \brief Create an instance of the library
*/ */
#define BLEMIDI_CREATE_INSTANCE(Name) \ #define BLEMIDI_CREATE_INSTANCE(Type, Name) \
BLEMIDI_NAMESPACE::BleMidiInterface Name; BLEMIDI_NAMESPACE::BleMidiTransport<Type> Name((Type&)SerialPort);
/*! \brief /*! \brief
*/ */
#define BLEMIDI_CREATE_DEFAULT_INSTANCE() \ #define BLEMIDI_CREATE_DEFAULT_INSTANCE() \
BLEMIDI_CREATE_INSTANCE(bm); BLEMIDI_CREATE_INSTANCE(bm);
END_BLEMIDI_NAMESPACE END_BLEMIDI_NAMESPACE

22
src/utility/BleMidi_Namespace.h → src/utility/midi_bleNamespace.h Normal file → Executable file
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@ -1,11 +1,11 @@
#pragma once #pragma once
#define BLEMIDI_NAMESPACE bleMidi #define BLEMIDI_NAMESPACE bleMidi
#define BEGIN_BLEMIDI_NAMESPACE namespace BLEMIDI_NAMESPACE { #define BEGIN_BLEMIDI_NAMESPACE namespace BLEMIDI_NAMESPACE {
#define END_BLEMIDI_NAMESPACE } #define END_BLEMIDI_NAMESPACE }
#define USING_NAMESPACE_BLEMIDI using namespace BLEMIDI_NAMESPACE; #define USING_NAMESPACE_BLEMIDI using namespace BLEMIDI_NAMESPACE;
BEGIN_BLEMIDI_NAMESPACE BEGIN_BLEMIDI_NAMESPACE
END_BLEMIDI_NAMESPACE END_BLEMIDI_NAMESPACE

58
src/utility/BleMidi_Settings.h → src/utility/midi_bleSettings.h Normal file → Executable file
View File

@ -1,29 +1,29 @@
#pragma once #pragma once
#include "BleMidi_Namespace.h" #include "midi_bleNamespace.h"
//#define DEBUG //#define DEBUG
#define RELEASE #define RELEASE
#if defined(RELEASE) #if defined(RELEASE)
#define RELEASE_BUILD #define RELEASE_BUILD
#undef DEBUG_BUILD #undef DEBUG_BUILD
#endif #endif
#if defined(DEBUG) #if defined(DEBUG)
#define DEBUG_BUILD #define DEBUG_BUILD
#undef RELEASE_BUILD #undef RELEASE_BUILD
#endif #endif
#if defined(RELEASE_BUILD) #if defined(RELEASE_BUILD)
#undef BLEMIDI_DEBUG #undef BLEMIDI_DEBUG
#undef BLEMIDI_DEBUG_VERBOSE #undef BLEMIDI_DEBUG_VERBOSE
#endif #endif
#if defined(DEBUG_BUILD) #if defined(DEBUG_BUILD)
#define BLEMIDI_DEBUG 1 #define BLEMIDI_DEBUG 1
#undef BLEMIDI_DEBUG_VERBOSE #undef BLEMIDI_DEBUG_VERBOSE
#define BLEMIDI_DEBUG_PARSING #define BLEMIDI_DEBUG_PARSING
#endif #endif