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Merge pull request #3216 from netmindz/AC-ES8388

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ES8388 Support
This commit is contained in:
Blaž Kristan 2023-07-18 18:48:40 +02:00 committed by GitHub
commit 286e057fae
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9
usermods/audioreactive/audio_reactive.h
View File

@ -1149,6 +1149,13 @@ 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);
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:
@ -1738,6 +1745,8 @@ class AudioReactive : public Usermod {
#if !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3)
oappend(SET_F("addOption(dd,'Generic I2S PDM',5);"));
#endif
oappend(SET_F("addOption(dd,'ES8388',6);"));
oappend(SET_F("dd=addDropdown('AudioReactive','config:AGC');"));
oappend(SET_F("addOption(dd,'Off',0);"));
oappend(SET_F("addOption(dd,'Normal',1);"));

116
usermods/audioreactive/audio_source.h
View File

@ -427,6 +427,122 @@ public:
}
};
/* ES8388 Sound Modude
This is an I2S sound processing unit that requires ininitialization over
I2C before I2S data can be received.
*/
class ES8388Source : public I2SSource {
private:
void _es8388I2cWrite(uint8_t reg, uint8_t val) {
#ifndef ES8388_ADDR
Wire.beginTransmission(0x10);
#define ES8388_ADDR 0x10 // default address
#else
Wire.beginTransmission(ES8388_ADDR);
#endif
Wire.write((uint8_t)reg);
Wire.write((uint8_t)val);
uint8_t i2cErr = Wire.endTransmission(); // i2cErr == 0 means OK
if (i2cErr != 0) {
DEBUGSR_PRINTF("AR: ES8388 I2C write failed with error=%d (addr=0x%X, reg 0x%X, val 0x%X).\n", i2cErr, ES8388_ADDR, reg, val);
}
}
void _es8388InitAdc() {
// https://dl.radxa.com/rock2/docs/hw/ds/ES8388%20user%20Guide.pdf Section 10.1
// http://www.everest-semi.com/pdf/ES8388%20DS.pdf Better spec sheet, more clear.
// https://docs.google.com/spreadsheets/d/1CN3MvhkcPVESuxKyx1xRYqfUit5hOdsG45St9BCUm-g/edit#gid=0 generally
// Sets ADC to around what AudioReactive expects, and loops line-in to line-out/headphone for monitoring.
// Registries are decimal, settings are binary as that's how everything is listed in the docs
// ...which makes it easier to reference the docs.
//
_es8388I2cWrite( 8,0b00000000); // I2S to slave
_es8388I2cWrite( 2,0b11110011); // Power down DEM and STM
_es8388I2cWrite(43,0b10000000); // Set same LRCK
_es8388I2cWrite( 0,0b00000101); // Set chip to Play & Record Mode
_es8388I2cWrite(13,0b00000010); // Set MCLK/LRCK ratio to 256
_es8388I2cWrite( 1,0b01000000); // Power up analog and lbias
_es8388I2cWrite( 3,0b00000000); // Power up ADC, Analog Input, and Mic Bias
_es8388I2cWrite( 4,0b11111100); // Power down DAC, Turn on LOUT1 and ROUT1 and LOUT2 and ROUT2 power
_es8388I2cWrite( 2,0b01000000); // Power up DEM and STM and undocumented bit for "turn on line-out amp"
// #define use_es8388_mic
#ifdef use_es8388_mic
// The mics *and* line-in are BOTH connected to LIN2/RIN2 on the AudioKit
// so there's no way to completely eliminate the mics. It's also hella noisy.
// Line-in works OK on the AudioKit, generally speaking, as the mics really need
// amplification to be noticable in a quiet room. If you're in a very loud room,
// the mics on the AudioKit WILL pick up sound even in line-in mode.
// TL;DR: Don't use the AudioKit for anything, use the LyraT.
//
// The LyraT does a reasonable job with mic input as configured below.
// Pick one of these. If you have to use the mics, use a LyraT over an AudioKit if you can:
_es8388I2cWrite(10,0b00000000); // Use Lin1/Rin1 for ADC input (mic on LyraT)
//_es8388I2cWrite(10,0b01010000); // Use Lin2/Rin2 for ADC input (mic *and* line-in on AudioKit)
_es8388I2cWrite( 9,0b10001000); // Select Analog Input PGA Gain for ADC to +24dB (L+R)
_es8388I2cWrite(16,0b00000000); // Set ADC digital volume attenuation to 0dB (left)
_es8388I2cWrite(17,0b00000000); // Set ADC digital volume attenuation to 0dB (right)
_es8388I2cWrite(38,0b00011011); // Mixer - route LIN1/RIN1 to output after mic gain
_es8388I2cWrite(39,0b01000000); // Mixer - route LIN to mixL, +6dB gain
_es8388I2cWrite(42,0b01000000); // Mixer - route RIN to mixR, +6dB gain
_es8388I2cWrite(46,0b00100001); // LOUT1VOL - 0b00100001 = +4.5dB
_es8388I2cWrite(47,0b00100001); // ROUT1VOL - 0b00100001 = +4.5dB
_es8388I2cWrite(48,0b00100001); // LOUT2VOL - 0b00100001 = +4.5dB
_es8388I2cWrite(49,0b00100001); // ROUT2VOL - 0b00100001 = +4.5dB
// Music ALC - the mics like Auto Level Control
// You can also use this for line-in, but it's not really needed.
//
_es8388I2cWrite(18,0b11111000); // ALC: stereo, max gain +35.5dB, min gain -12dB
_es8388I2cWrite(19,0b00110000); // ALC: target -1.5dB, 0ms hold time
_es8388I2cWrite(20,0b10100110); // ALC: gain ramp up = 420ms/93ms, gain ramp down = check manual for calc
_es8388I2cWrite(21,0b00000110); // ALC: use "ALC" mode, no zero-cross, window 96 samples
_es8388I2cWrite(22,0b01011001); // ALC: noise gate threshold, PGA gain constant, noise gate enabled
#else
_es8388I2cWrite(10,0b01010000); // Use Lin2/Rin2 for ADC input ("line-in")
_es8388I2cWrite( 9,0b00000000); // Select Analog Input PGA Gain for ADC to 0dB (L+R)
_es8388I2cWrite(16,0b01000000); // Set ADC digital volume attenuation to -32dB (left)
_es8388I2cWrite(17,0b01000000); // Set ADC digital volume attenuation to -32dB (right)
_es8388I2cWrite(38,0b00001001); // Mixer - route LIN2/RIN2 to output
_es8388I2cWrite(39,0b01010000); // Mixer - route LIN to mixL, 0dB gain
_es8388I2cWrite(42,0b01010000); // Mixer - route RIN to mixR, 0dB gain
_es8388I2cWrite(46,0b00011011); // LOUT1VOL - 0b00011110 = +0dB, 0b00011011 = LyraT balance fix
_es8388I2cWrite(47,0b00011110); // ROUT1VOL - 0b00011110 = +0dB
_es8388I2cWrite(48,0b00011110); // LOUT2VOL - 0b00011110 = +0dB
_es8388I2cWrite(49,0b00011110); // ROUT2VOL - 0b00011110 = +0dB
#endif
}
public:
ES8388Source(SRate_t sampleRate, int blockSize, float sampleScale = 1.0f, bool i2sMaster=true) :
I2SSource(sampleRate, blockSize, sampleScale) {
_config.channel_format = I2S_CHANNEL_FMT_ONLY_LEFT;
};
void initialize(int8_t i2swsPin, int8_t i2ssdPin, int8_t i2sckPin, int8_t mclkPin) {
if ((i2sckPin < 0) || (mclkPin < 0)) {
DEBUGSR_PRINTF("\nAR: invalid I2S pin: SCK=%d, MCLK=%d\n", i2sckPin, mclkPin);
return;
}
// First route mclk, then configure ADC over I2C, then configure I2S
_es8388InitAdc();
I2SSource::initialize(i2swsPin, i2ssdPin, i2sckPin, mclkPin);
}
void deinitialize() {
I2SSource::deinitialize();
}
};
#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 2, 0)
#if !defined(SOC_I2S_SUPPORTS_ADC) && !defined(SOC_I2S_SUPPORTS_ADC_DAC)