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add AtomSPK Example code
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@Gitshaoxiang
Gitshaoxiang committed Feb 26, 2021
1 parent db70dd8 commit e7e726e
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87 changes: 87 additions & 0 deletions examples/ATOM_BASE/ATOM_SPK/PlayMP3FromSD/PlayMP3FromSD.ino
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/*
Description:
Use ATOM SPK play mp3 files from TF Card
Before runing put the music file to the TF card
MP3 file link: http://gitfile.oss-cn-beijing.aliyuncs.com/11-fanfare.mp3
Please install library before compiling:
ESP8266Audio: https://github.com/earlephilhower/ESP8266Audio
*/

#include "M5Atom.h"
#include <WiFi.h>

#include "AudioFileSourceSD.h"
#include "AudioGeneratorMP3.h"
#include "AudioOutputI2S.h"
#include "AudioFileSourceID3.h"

AudioGeneratorMP3 *mp3;
AudioFileSourceSD *file;
AudioOutputI2S *out;
AudioFileSourceID3 *id3;

#define SCK 23
#define MISO 33
#define MOSI 19

// Called when there's a warning or error (like a buffer underflow or decode hiccup)
void StatusCallback(void *cbData, int code, const char *string)
{
const char *ptr = reinterpret_cast<const char *>(cbData);
// Note that the string may be in PROGMEM, so copy it to RAM for printf
char s1[64];
strncpy_P(s1, string, sizeof(s1));
s1[sizeof(s1)-1]=0;
Serial.printf("STATUS(%s) '%d' = '%s'\n", ptr, code, s1);
Serial.flush();
}

void MDCallback(void *cbData, const char *type, bool isUnicode, const char *string)
{
(void)cbData;
Serial.printf("ID3 callback for: %s = '", type);

if (isUnicode) {
string += 2;
}

while (*string) {
char a = *(string++);
if (isUnicode) {
string++;
}
Serial.printf("%c", a);
}
Serial.printf("'\n");
Serial.flush();
}

void setup(){
M5.begin(true,false,true);
SPI.begin(SCK, MISO, MOSI, -1);
if(!SD.begin(-1, SPI, 40000000)){
Serial.println("Card Mount Failed");
return;
}
M5.dis.drawpix(0, 0xf00000);
audioLogger = &Serial;
file = new AudioFileSourceSD("/11-fanfare.mp3");
id3 = new AudioFileSourceID3(file);
id3->RegisterMetadataCB(MDCallback, (void*)"ID3TAG");
out = new AudioOutputI2S();
out->SetPinout(22, 21, 25);
mp3 = new AudioGeneratorMP3();
mp3->RegisterStatusCB(StatusCallback, (void*)"mp3");
mp3->begin(id3, out);
}

void loop(){

if (mp3->isRunning()) {
if (!mp3->loop()) mp3->stop();
} else {
Serial.printf("MP3 done\n");
delay(1000);
}
}

231 changes: 231 additions & 0 deletions examples/ATOM_BASE/ATOM_SPK/PlayRawPCM/AtomSPK.cpp
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#include "AtomSPK.h"

const double sinmap[] = {
0.0, 0.01745240643728351, 0.03489949670250097, 0.05233595624294383, 0.0697564737441253, 0.08715574274765817, 0.10452846326765346, 0.12186934340514748, 0.13917310096006544, 0.15643446504023087, 0.17364817766693033, 0.1908089953765448, 0.20791169081775931, 0.224951054343865, 0.24192189559966773, 0.25881904510252074, 0.27563735581699916, 0.29237170472273677, 0.3090169943749474, 0.32556815445715664, 0.3420201433256687, 0.35836794954530027, 0.374606593415912, 0.3907311284892737, 0.40673664307580015, 0.42261826174069944, 0.4383711467890774, 0.45399049973954675, 0.4694715627858908, 0.48480962024633706, 0.49999999999999994, 0.5150380749100542, 0.5299192642332049, 0.5446390350150271, 0.5591929034707469, 0.573576436351046, 0.5877852522924731, 0.6018150231520483, 0.6156614753256582, 0.6293203910498374, 0.6427876096865393, 0.6560590289905072, 0.6691306063588582, 0.6819983600624985, 0.6946583704589973, 0.7071067811865476, 0.7193398003386511, 0.7313537016191705,
0.7431448254773941, 0.754709580222772, 0.766044443118978, 0.7771459614569708, 0.788010753606722, 0.7986355100472928, 0.8090169943749475, 0.8191520442889918, 0.8290375725550417, 0.8386705679454239, 0.8480480961564261, 0.8571673007021122, 0.8660254037844386, 0.8746197071393957, 0.8829475928589269, 0.8910065241883678, 0.898794046299167, 0.9063077870366499, 0.9135454576426009, 0.9205048534524403, 0.9271838545667874, 0.9335804264972017, 0.9396926207859083, 0.9455185755993167, 0.9510565162951535, 0.9563047559630354, 0.9612616959383189, 0.9659258262890683, 0.9702957262759965, 0.9743700647852352, 0.9781476007338056, 0.981627183447664, 0.984807753012208, 0.9876883405951378, 0.9902680687415703, 0.992546151641322, 0.9945218953682733, 0.9961946980917455, 0.9975640502598242, 0.9986295347545738, 0.9993908270190958, 0.9998476951563913,
1.0, 0.9998476951563913, 0.9993908270190958, 0.9986295347545738, 0.9975640502598242, 0.9961946980917455, 0.9945218953682734, 0.9925461516413221, 0.9902680687415704, 0.9876883405951377, 0.984807753012208, 0.981627183447664, 0.9781476007338057, 0.9743700647852352, 0.9702957262759965, 0.9659258262890683, 0.9612616959383189, 0.9563047559630355, 0.9510565162951536, 0.9455185755993168, 0.9396926207859084, 0.9335804264972017, 0.9271838545667874, 0.9205048534524404, 0.913545457642601, 0.90630778703665, 0.8987940462991669, 0.8910065241883679, 0.8829475928589271, 0.8746197071393959, 0.8660254037844387, 0.8571673007021123, 0.8480480961564261, 0.838670567945424, 0.8290375725550417, 0.819152044288992, 0.8090169943749475, 0.7986355100472927, 0.788010753606722, 0.777145961456971, 0.766044443118978, 0.7547095802227718, 0.7431448254773942, 0.7313537016191706, 0.7193398003386514, 0.7071067811865476, 0.6946583704589971,
0.6819983600624985, 0.6691306063588583, 0.6560590289905073, 0.6427876096865395, 0.6293203910498377, 0.6156614753256584, 0.6018150231520482, 0.5877852522924732, 0.5735764363510464, 0.5591929034707469, 0.5446390350150269, 0.5299192642332049, 0.5150380749100544, 0.49999999999999994, 0.48480962024633717, 0.4694715627858911, 0.45399049973954686, 0.4383711467890773, 0.4226182617406995, 0.40673664307580043, 0.39073112848927416, 0.37460659341591224, 0.3583679495453002, 0.3420201433256689, 0.32556815445715703, 0.3090169943749475, 0.29237170472273705, 0.27563735581699966, 0.258819045102521, 0.24192189559966773, 0.22495105434386478, 0.20791169081775931, 0.19080899537654497, 0.17364817766693028, 0.15643446504023098, 0.13917310096006574, 0.12186934340514755, 0.10452846326765373, 0.08715574274765864, 0.06975647374412552, 0.05233595624294381, 0.0348994967025007, 0.01745240643728344,
0.0, -0.017452406437283192, -0.0348994967025009, -0.052335956242943564, -0.06975647374412483, -0.08715574274765794, -0.10452846326765305, -0.12186934340514774, -0.13917310096006552, -0.15643446504023073, -0.17364817766693047, -0.19080899537654472, -0.20791169081775907, -0.22495105434386498, -0.2419218955996675, -0.25881904510252035, -0.275637355816999, -0.2923717047227364, -0.30901699437494773, -0.32556815445715676, -0.34202014332566866, -0.35836794954530043, -0.374606593415912, -0.39073112848927355, -0.4067366430757998, -0.4226182617406993, -0.43837114678907707, -0.45399049973954625, -0.46947156278589086, -0.48480962024633695, -0.5000000000000001, -0.5150380749100542, -0.5299192642332048, -0.5446390350150271, -0.5591929034707467, -0.5735764363510458, -0.587785252292473, -0.601815023152048, -0.6156614753256578, -0.6293203910498376, -0.6427876096865393, -0.6560590289905074, -0.6691306063588582,
-0.6819983600624984, -0.6946583704589973, -0.7071067811865475, -0.7193398003386509, -0.7313537016191701, -0.743144825477394, -0.7547095802227717, -0.7660444431189779, -0.7771459614569711, -0.7880107536067221, -0.7986355100472928, -0.8090169943749473, -0.8191520442889916, -0.8290375725550414, -0.8386705679454242, -0.848048096156426, -0.8571673007021121, -0.8660254037844385, -0.8746197071393959, -0.882947592858927, -0.8910065241883678, -0.8987940462991668, -0.9063077870366497, -0.913545457642601, -0.9205048534524403, -0.9271838545667873, -0.9335804264972016, -0.9396926207859082, -0.9455185755993168, -0.9510565162951535, -0.9563047559630353, -0.961261695938319, -0.9659258262890683, -0.9702957262759965, -0.9743700647852351, -0.9781476007338056, -0.9816271834476639, -0.984807753012208, -0.9876883405951377, -0.9902680687415704, -0.9925461516413221, -0.9945218953682734, -0.9961946980917455,-0.9975640502598242, -0.9986295347545738, -0.9993908270190957, -0.9998476951563913,
-1.0, -0.9998476951563913, -0.9993908270190958, -0.9986295347545738, -0.9975640502598243, -0.9961946980917455, -0.9945218953682734, -0.992546151641322, -0.9902680687415704, -0.9876883405951378, -0.9848077530122081, -0.9816271834476641, -0.9781476007338058, -0.9743700647852352, -0.9702957262759966, -0.9659258262890682, -0.9612616959383188, -0.9563047559630354, -0.9510565162951536, -0.945518575599317, -0.9396926207859085, -0.9335804264972021, -0.9271838545667874, -0.9205048534524405, -0.9135454576426008, -0.9063077870366498, -0.898794046299167, -0.891006524188368, -0.8829475928589271, -0.8746197071393961, -0.8660254037844386, -0.8571673007021123, -0.8480480961564261, -0.8386705679454243, -0.8290375725550421, -0.8191520442889918, -0.8090169943749476, -0.798635510047293, -0.7880107536067218, -0.7771459614569708, -0.7660444431189781, -0.7547095802227722, -0.7431448254773946, -0.731353701619171,
-0.7193398003386517, -0.7071067811865477, -0.6946583704589976, -0.6819983600624983, -0.6691306063588581, -0.6560590289905074, -0.6427876096865396, -0.6293203910498378, -0.6156614753256588, -0.6018150231520483, -0.5877852522924734, -0.5735764363510465, -0.5591929034707473, -0.544639035015027, -0.5299192642332058, -0.5150380749100545, -0.5000000000000004, -0.4848096202463369, -0.4694715627858908, -0.45399049973954697, -0.438371146789077, -0.4226182617407, -0.40673664307580015, -0.3907311284892747, -0.37460659341591235, -0.35836794954530077, -0.3420201433256686, -0.32556815445715753, -0.3090169943749477, -0.29237170472273627, -0.2756373558169998, -0.2588190451025207, -0.24192189559966787, -0.22495105434386534, -0.20791169081775987, -0.19080899537654467, -0.17364817766693127, -0.1564344650402311, -0.13917310096006588, -0.12186934340514811, -0.10452846326765342, -0.08715574274765832, -0.06975647374412476, -0.05233595624294437, -0.034899496702500823, -0.01745240643728445
};

static QueueHandle_t i2sstateQueue = nullptr;
static QueueHandle_t i2sAudioEndQueue = nullptr;

IRAM_ATTR double fastSin(double deg)
{
int integer = (int)deg%360;
//int point = deg - integer;
return sinmap[integer];
}

void speakerPlayTask(void *arg)
{
i2sQueueMsg_t QueueMsg;
while (1)
{
if (xQueueReceive(i2sstateQueue, &QueueMsg, portMAX_DELAY) == pdTRUE)
{
if (QueueMsg.type == kTypeAudio)
{
audioParameters_t *pam = (audioParameters_t *)QueueMsg.dataptr;
size_t bytes_written = 0;
i2s_write(SPAKER_I2S_NUMBER, pam->pAudioData, pam->length, &bytes_written, portMAX_DELAY);
//Serial.printf("point :%p\r\n",pam->pAudioData);
if( pam->freeFlag == true ) xQueueSend(i2sAudioEndQueue, &pam->pAudioData, (TickType_t)0);
//delay(1);
//delete (uint16_t*)pam->pAudioData;
delete pam;
}
else if (QueueMsg.type == kTypeBeep)
{
beepParameters_t *pam = (beepParameters_t *)QueueMsg.dataptr;
size_t bytes_written = 0;
size_t count = 0, length = 0;

double t = (1 / (double)pam->freq) * (double)pam->rate;

if (pam->time > 1000)
{
length = pam->rate * (pam->time % 1000) / 1000;
count = pam->time / 1000;
}
else
{
length = pam->rate * pam->time / 1000;
count = 0;
}
int rawLength = ( count == 0 ) ? length : pam->rate;
rawLength -= (int)((int)(rawLength % (int)t));

int16_t *raw = (int16_t *)calloc(rawLength, sizeof(int16_t));
for (int i = 0; i < rawLength; i++)
{
double val = 0;
if( i < 1000 )
{
val = pam->maxval * i / 1000;
}
else if( i > ( rawLength - 1000 ))
{
val = pam->maxval - pam->maxval * ( 1000 - ( rawLength - i )) / 1000;
}
else
{
val = pam->maxval;
}
if( pam->freq == 0 )
{
raw[i] = 0;
}
else
{
raw[i] = (int16_t)(((fastSin(360 * i / t ) + 0 ) * val));
}
}
if (rawLength != 0)
{
i2s_write(SPAKER_I2S_NUMBER, raw, ( rawLength ) * 2 , &bytes_written, portMAX_DELAY);
Serial.printf("I2S Write\r\n");
}
delete pam;
delete raw;
}
}
delay(1);
}
}


bool ATOMSPK::begin(int __rate)
{
esp_err_t err = ESP_OK;

i2s_driver_uninstall(SPAKER_I2S_NUMBER);
i2s_config_t i2s_config = {
.mode = (i2s_mode_t)(I2S_MODE_MASTER),
.sample_rate = __rate,
.bits_per_sample = I2S_BITS_PER_SAMPLE_16BIT, // is fixed at 12bit, stereo, MSB
.channel_format = I2S_CHANNEL_FMT_ONLY_RIGHT,
.communication_format = I2S_COMM_FORMAT_I2S,
.intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,
.dma_buf_count = 2,
.dma_buf_len = 128,
};
i2s_config.mode = (i2s_mode_t)(I2S_MODE_MASTER | I2S_MODE_TX);
i2s_config.use_apll = false;
i2s_config.tx_desc_auto_clear = true;

err += i2s_driver_install(SPAKER_I2S_NUMBER, &i2s_config, 0, NULL);
i2s_pin_config_t tx_pin_config;

tx_pin_config.bck_io_num = CONFIG_I2S_BCK_PIN;
tx_pin_config.ws_io_num = CONFIG_I2S_LRCK_PIN;
tx_pin_config.data_out_num = CONFIG_I2S_DATA_PIN;
tx_pin_config.data_in_num = CONFIG_I2S_DATA_IN_PIN;

err += i2s_set_pin(SPAKER_I2S_NUMBER, &tx_pin_config);

err += i2s_set_clk(SPAKER_I2S_NUMBER, __rate, I2S_BITS_PER_SAMPLE_16BIT, I2S_CHANNEL_MONO);

_rate = __rate;
i2sAudioEndQueue = xQueueCreate(1024, sizeof(uint16_t*));
i2sstateQueue = xQueueCreate(1024, sizeof(i2sQueueMsg_t));
if (i2sstateQueue == 0)
{
return false;
}
xTaskCreatePinnedToCore(speakerPlayTask, "speakerPlayTask", 4096, nullptr, 10, nullptr, 0);
return (err == ESP_OK) ? true : false;
}

size_t ATOMSPK::playRAW(const uint8_t *__audioPtr, size_t __size, bool modal, bool freeFlag,TickType_t __ticksToWait)
{
size_t writeSize = 0;
if (modal == false)
{
audioParameters_t *pam = (audioParameters_t *)malloc(sizeof(audioParameters_t));
pam->pAudioData = (void *)__audioPtr;
pam->length = __size;
pam->freeFlag = freeFlag;
i2sQueueMsg_t msg = {.type = kTypeAudio, .dataptr = pam};
xQueueSend(i2sstateQueue, &msg, (TickType_t)0);
//xTaskCreatePinnedToCore(speakerAudioTask, "speakerAudioTask", 4096, pam, 3, NULL, 0);
}
else
{
i2s_write(SPAKER_I2S_NUMBER, __audioPtr, __size, &writeSize, __ticksToWait);
}
return writeSize;
}


size_t ATOMSPK::playBeep(int __freq, int __timems, int __maxval, bool __modal)
{
size_t writeSize = 0;

if (__modal == false)
{
beepParameters_t *pam = (beepParameters_t *)malloc(sizeof(beepParameters_t));
pam->freq = __freq;
pam->time = __timems;
pam->rate = _rate;
pam->maxval = __maxval;

i2sQueueMsg_t msg = {.type = kTypeBeep, .dataptr = pam};
xQueueSend(i2sstateQueue, &msg, (TickType_t)0);
}
else
{
size_t bytes_written = 0;
size_t count = 0, length = 0;

double t = (1 / (double)__freq) * (double)_rate;

if (__timems > 1000)
{
length = _rate * (__timems % 1000) / 1000;
count = __timems / 1000;
}
else
{
length = _rate * __timems / 1000;
count = 0;
}
int rawLength = ( count == 0 ) ? length : _rate;

uint16_t *raw = (uint16_t *)ps_calloc(rawLength, sizeof(uint16_t));

for (int i = 0; i < rawLength; i++)
{
int val = 0;
if( i < 100 )
{
val = __maxval * i / 100;
}
else if( i > ( rawLength - 1000 ))
{

val = __maxval - __maxval * ( 1000 - ( rawLength - i )) / 1000;
}
else
{
val = __maxval;
}
raw[i] = (uint16_t)((fastSin(360 / t * i)) * val);
}

for (int i = 0; i < count; i++)
{
i2s_write(SPAKER_I2S_NUMBER, raw, _rate, &bytes_written, portMAX_DELAY);
}
if (length != 0)
{
i2s_write(SPAKER_I2S_NUMBER, raw, length, &bytes_written, portMAX_DELAY);
}
delete raw;
}
return writeSize;
}
67 changes: 67 additions & 0 deletions examples/ATOM_BASE/ATOM_SPK/PlayRawPCM/AtomSPK.h
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#ifndef _ATOMSPK_H_
#define _ATOMSPK_H_

#include "M5Atom.h"
#include "Arduino.h"
#include <driver/i2s.h>
#include "FS.h"

#define CONFIG_I2S_BCK_PIN 22
#define CONFIG_I2S_LRCK_PIN 21
#define CONFIG_I2S_DATA_PIN 25
#define CONFIG_I2S_DATA_IN_PIN -1

#define SPAKER_I2S_NUMBER I2S_NUM_0

typedef struct beepParameters
{
int rate;
int freq;
int maxval;
size_t time;
//beepParameters() :rate(44100),freq(2000),maxval(10000),time(500){}
//beepParameters(int rate,int freq,int maxval,size_t time) :rate(rate),freq(freq),maxval(maxval),time(time){}
}beepParameters_t;

typedef struct
{
void *pAudioData;
int length;
bool freeFlag;
}audioParameters_t;

enum playType
{
kTypeNull = 0,
kTypeAudio,
kTypeBeep,
};

typedef struct
{
int type;
void *dataptr;
}i2sQueueMsg_t;

typedef struct audioList
{
size_t _num;
int type;
void *dataptr;
audioList *nextPtr;
}audioList_t;

class ATOMSPK
{
public:
bool begin(int __rate = 44100);
size_t playRAW( const uint8_t* __audioPtr, size_t __size, bool __modal = false, bool freeFlag = true,TickType_t __ticksToWait = portMAX_DELAY );
size_t playBeep( int __freq = 2000, int __timems = 200,int __maxval = 10000, bool __modal = false );
private:
size_t _rate = 44100;
size_t listLength = 0;

};


#endif
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