vs1053 streaming midi

Author: pschatzmann

examples/examples-vs1053/streams-memory_midi-vs1053/streams-memory_midi-vs1053.ino

@@ -1,7 +1,7 @@
 /**
  * @file streams-memory_midi-vs1953.ino
  * @author Phil Schatzmann
- * @brief The module can play Midi Files: Compile with Partition Scheme Hughe APP.
+ * @brief The module can play Midi Files: Compile with Partition Scheme Hughe APP. The midi file was converted with xxd to a header file.
  * It seems that only midi files type 0 are supported.
  * @version 0.1
  * @date 2021-01-24

examples/examples-vs1053/streams-midi-vs1053/streams-midi-vs1053.ino

@@ -0,0 +1,60 @@
+/**
+ * @file streams-midi-vs1053.ino
+ * @author Phil Schatzmann
+ * @brief Demo that shows how to send midi commands to the vs1053
+ * @version 0.1
+ * @date 2022-08-23
+ * 
+ * @copyright Copyright (c) 2022
+ * 
+ */
+#include "AudioTools.h"
+#include "AudioLibs/VS1053Stream.h"
+
+
+VS1053Stream vs1053; // final output
+MidiStreamOut out(vs1053);
+uint16_t note = 65; // 0 to 128
+uint16_t amplitude = 128; // 0 to 128
+int channel = 0;
+
+//Send a MIDI note-on message.  Like pressing a piano key
+void noteOn(uint8_t channel, uint8_t note, uint8_t attack_velocity=100) {
+  vs1053.sendMidiMessage( (0x90 | channel), note, attack_velocity);
+}
+
+//Send a MIDI note-off message.  Like releasing a piano key
+void noteOff(uint8_t channel, uint8_t note, uint8_t release_velocity=100) {
+  vs1053.sendMidiMessage( (0x80 | channel), note, release_velocity);
+}
+
+
+void setup() {
+    Serial.begin(115200);
+    AudioLogger::instance().begin(Serial, AudioLogger::Info);  
+
+ // setup vs1053
+  auto cfg = vs1053.defaultConfig();
+  cfg.is_midi = true; // vs1053 is accepting streaming midi data
+  // Use your custom pins or define in AudioCodnfig.h
+  //cfg.cs_pin = VS1053_CS; 
+  //cfg.dcs_pin = VS1053_DCS;
+  //cfg.dreq_pin = VS1053_DREQ;
+  //cfg.reset_pin = VS1053_RESET;
+  vs1053.begin(cfg);
+
+}
+
+void loop() {
+    Serial.println();
+    Serial.print("playing ");
+    Serial.println(++note);
+
+    out.noteOn(channel, note, amplitude );
+    delay(900);
+    out.noteOff(channel, note, 20 );
+    delay(200);
+    if (note>=90) {
+      note = 64;
+    }
+}

src/AudioLibs/VS1053Stream.h

@@ -44,6 +44,7 @@ class VS1053BaseStream : public AudioStreamX {
             digitalWrite(_reset_pin, HIGH);
             delay(200);
         }
+    
 
         p_vs1053->begin();
         p_vs1053->startSong();
@@ -200,7 +201,7 @@ class VS1053Config : public AudioBaseInfo {
     uint8_t cs_sd_pin = VS1053_CS_SD; 
     RxTxMode mode;
     bool is_encoded_data = false;
-    bool is_midi_mode = false;
+    bool is_midi = false;
     bool is_start_spi = true; 
 };
 
@@ -237,12 +238,13 @@ class VS1053Stream : public AudioStreamX {
         LOGI(LOG_METHOD);
         bool result = true;
         // enfornce encoded data for midi mode
-        if (cfg.is_midi_mode){
+        if (cfg.is_midi){
             cfg.is_encoded_data = true;
         }
         this->cfg = cfg;
         setAudioInfo(cfg);
         LOGI("is_encoded_data: %s", cfg.is_encoded_data?"true":"false");
+        LOGI("is_midi: %s", cfg.is_midi?"true":"false");
         LOGI("cs_pin: %d", cfg.cs_pin);
         LOGI("dcs_pin: %d", cfg.dcs_pin);
         LOGI("dreq_pin: %d", cfg.dreq_pin);
@@ -260,11 +262,11 @@ class VS1053Stream : public AudioStreamX {
         // hack to treat midi as separate mode
         const int MIDI_MODE = 100;
         int mode = cfg.mode;
-        if (cfg.is_midi_mode){
+        if (cfg.is_midi){
             mode = MIDI_MODE;
         }
 
-        switch(cfg.mode){
+        switch(mode){
 
             case TX_MODE:
                 p_out->begin(cfg);      
@@ -273,6 +275,8 @@ class VS1053Stream : public AudioStreamX {
                 break;
 #if VS1053_EXT
             case MIDI_MODE:
+                LOGI("Using MIDI")
+                p_out->begin(cfg);      
                 getVS1053().beginMIDI();
                 delay(100);
                 setVolume(VS1053_DEFAULT_VOLUME);   
@@ -310,7 +314,7 @@ class VS1053Stream : public AudioStreamX {
 
     /// Sets the volume: value from 0 to 1.0
     void setVolume(float volume){
-        LOGI(LOG_METHOD);
+        LOGI("setVolume: %f", volume);
         if (p_driver==nullptr) {
             logError(__FUNCTION__);
             return;
@@ -438,6 +442,21 @@ class VS1053Stream : public AudioStreamX {
         }
         p_driver->setBassFrequencyLimit(value);
     }
+
+    /// Sends a midi message to the VS1053
+    void sendMidiMessage(uint8_t cmd, uint8_t data1, uint8_t data2) {
+        LOGI(LOG_METHOD);
+        if (!cfg.is_midi){
+            LOGE("start with is_midi=true");
+            return;
+        }
+        if (p_driver==nullptr) {
+            logError(__FUNCTION__);
+            return;
+        }
+        getVS1053().sendMidiMessage(cmd, data1, data2);
+    }
+
 #endif
 
 protected: