import esp audio lib

2021-08-27 16:42:43 +02:00
parent 489174fdc8
commit 3d437de0e6
567 changed files with 267532 additions and 38 deletions
--- a/FW/leo_muziekdoos_sam51/lib/ESP8266Audio/src/AudioOutputI2S.h
+++ b/FW/leo_muziekdoos_sam51/lib/ESP8266Audio/src/AudioOutputI2S.h
@@ -0,0 +1,69 @@
+/*
+  AudioOutputI2S
+  Base class for an I2S output port
+  
+  Copyright (C) 2017  Earle F. Philhower, III
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "AudioOutput.h"
+
+#if defined(__SAMD51__)
+  #include "I2C.h"
+  
+#endif
+
+class AudioOutputI2S : public AudioOutput
+{
+  public:
+#if defined(ESP32) || defined(ESP8266)
+    AudioOutputI2S(int port=0, int output_mode=EXTERNAL_I2S, int dma_buf_count = 8, int use_apll=APLL_DISABLE);
+    bool SetPinout(int bclkPin, int wclkPin, int doutPin);
+    enum : int { APLL_AUTO = -1, APLL_ENABLE = 1, APLL_DISABLE = 0 };
+    enum : int { EXTERNAL_I2S = 0, INTERNAL_DAC = 1, INTERNAL_PDM = 2 };
+#elif defined(ARDUINO_ARCH_RP2040)
+    AudioOutputI2S(long sampleRate = 44100, pin_size_t sck = 26, pin_size_t data = 28);
+#endif
+    virtual ~AudioOutputI2S() override;
+    virtual bool SetRate(int hz) override;
+    virtual bool SetBitsPerSample(int bits) override;
+    virtual bool SetChannels(int channels) override;
+    virtual bool begin() override { return begin(true); }
+    virtual bool ConsumeSample(int16_t sample[2]) override;
+    virtual void flush() override;
+    virtual bool stop() override;
+    
+    bool begin(bool txDAC);
+    bool SetOutputModeMono(bool mono);  // Force mono output no matter the input
+
+  protected:
+    bool SetPinout();
+    virtual int AdjustI2SRate(int hz) { return hz; }
+    uint8_t portNo;
+    int output_mode;
+    bool mono;
+    bool i2sOn;
+    int dma_buf_count;
+    int use_apll;
+    // We can restore the old values and free up these pins when in NoDAC mode
+    uint32_t orig_bck;
+    uint32_t orig_ws;
+    
+    uint8_t bclkPin;
+    uint8_t wclkPin;
+    uint8_t doutPin;
+};