From e7fd0006360d75c5a24fd92dea219f1d7257a2f8 Mon Sep 17 00:00:00 2001
From: Will Tatam <will@netmindz.net>
Date: Tue, 22 Nov 2022 20:07:49 +0000
Subject: [PATCH] Work in progress on building ES8388Source from es8388arduino
 library

---
 platformio.ini                          |  2 +
 usermods/audioreactive/audio_reactive.h |  7 ++++
 usermods/audioreactive/audio_source.h   | 53 +++++++++++++++++++++++++
 3 files changed, 62 insertions(+)

diff --git a/platformio.ini b/platformio.ini
index 3ba5c7c6..6c3da961 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -559,6 +559,8 @@ build_flags_min =
 
 lib_deps_min =
   https://github.com/kosme/arduinoFFT#develop @ 1.9.2 ; used for USERMOD_AUDIOREACTIVE
+  https://github.com/netmindz/es8388arduino.git @ 0.0.1 ; used for USERMOD_AUDIOREACTIVE ES8388 source
+
 ; monitor_filters = esp32_exception_decoder ; used to show crash details
 
 build_flags_max = 
diff --git a/usermods/audioreactive/audio_reactive.h b/usermods/audioreactive/audio_reactive.h
index d96a6fb4..ff2f7f66 100644
--- a/usermods/audioreactive/audio_reactive.h
+++ b/usermods/audioreactive/audio_reactive.h
@@ -1220,6 +1220,13 @@ class AudioReactive : public Usermod {
           if (audioSource) audioSource->initialize(i2swsPin, i2ssdPin);
           break;
         #endif
+        case 6:
+          DEBUGSR_PRINTLN(F("AR: ES8388 Source"));
+          audioSource = new ES8388Source(SAMPLE_RATE, BLOCK_SIZE, sdaPin, sclPin);
+          delay(100);
+          if (audioSource) audioSource->initialize(i2swsPin, i2ssdPin, i2sckPin, mclkPin);
+          break;
+
         #if  !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
         // ADC over I2S is only possible on "classic" ESP32
         case 0:
diff --git a/usermods/audioreactive/audio_source.h b/usermods/audioreactive/audio_source.h
index e51b2671..7adc9a69 100644
--- a/usermods/audioreactive/audio_source.h
+++ b/usermods/audioreactive/audio_source.h
@@ -15,6 +15,7 @@
 #else
 #define SRate_t int
 #endif
+#include "ES8388.h"
 
 //#include <driver/i2s_std.h>
 //#include <driver/i2s_pdm.h>
@@ -437,6 +438,58 @@ public:
     int8_t pin_ES7243_SCL;
 };
 
+class ES8388Source : public I2SSource {
+  private:
+
+    void _es8388InitAdc() {
+      if (!es8388.init()) Serial.println("Init Fail");
+       es8388.inputSelect(IN2);
+       es8388.setInputGain(8);
+       es8388.outputSelect(OUT2);
+       es8388.setOutputVolume(12);
+       es8388.mixerSourceSelect(MIXADC, MIXADC);
+       es8388.mixerSourceControl(DACOUT);
+       uint8_t *reg;
+       for (uint8_t i = 0; i < 53; i++) {
+         reg = es8388.readAllReg();
+         Serial.printf("Reg-%02d = 0x%02x\r\n", i, reg[i]);
+       }
+    }
+
+public:
+    ES8388Source(int sampleRate, int blockSize, int sdaPin, int sclPin) :
+      I2SSource(sampleRate, blockSize) {
+      _config.channel_format = I2S_CHANNEL_FMT_ONLY_LEFT;
+      pin_ES8388_SDA = sdaPin;
+      pin_ES8388_SCL = sclPin;
+    };
+
+    void initialize(int8_t i2swsPin, int8_t i2ssdPin, int8_t i2sckPin) {
+      // Reserve SDA and SCL pins of the I2C interface
+      if (!pinManager.allocatePin(pin_ES8388_SDA, true, PinOwner::HW_I2C) ||
+          !pinManager.allocatePin(pin_ES8388_SCL, true, PinOwner::HW_I2C)) {
+        return;
+      }
+
+      _es8388InitAdc();
+      I2SSource::initialize(i2swsPin, i2ssdPin, i2sckPin);
+    }
+
+    void deinitialize() {
+      // Release SDA and SCL pins of the I2C interface
+      pinManager.deallocatePin(pin_ES8388_SDA, PinOwner::HW_I2C);
+      pinManager.deallocatePin(pin_ES8388_SCL, PinOwner::HW_I2C);
+      I2SSource::deinitialize();
+    }
+
+  private:
+    int8_t pin_ES8388_SDA;
+    int8_t pin_ES8388_SCL;
+    ES8388 es8388 = ES8388(pin_ES8388_SDA, pin_ES8388_SCL, 400000);
+};
+
+
+
 #if !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S3)
 // ADC over I2S is only availeable in "classic" ESP32