gronod/squeezelite-esp32-gronod
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97144f7f5bdd4ea82035d2f0feb24c6cdb402548
squeezelite-esp32-gronod/main/esp32.c
Sebastien Leclerc 97144f7f5b BT ring buffering
2019-06-11 16:02:23 -04:00

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#include <signal.h>
#include "sdkconfig.h"
#include "esp_system.h"
#include "squeezelite.h"
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/timers.h"
#include "nvs.h"
#include "nvs_flash.h"
#include "esp_system.h"
#include "esp_log.h"
#include "perf_trace.h"
#include "esp_bt.h"
#include "bt_app_core.h"
#include "esp_bt_main.h"
#include "esp_bt_device.h"
#include "esp_gap_bt_api.h"
#include "esp_a2dp_api.h"
#include "esp_avrc_api.h"
#include "esp_pthread.h"
#include "pthread.h"
const char * art_a2dp_connected[]={"\n\n",
" ___ _____ _____ _____ _ _ _ \n",
" /\\ |__ \\| __ \\| __ \\ / ____| | | | | |\n",
" / \\ ) | | | | |__) | | | ___ _ __ _ __ ___ ___| |_ ___ __| | |\n",
" / /\\ \\ / /| | | | ___/ | | / _ \\| '_ \\| '_ \\ / _ \\/ __| __/ _ \\/ _` | |\n",
" / ____ \\ / /_| |__| | | | |___| (_) | | | | | | | __/ (__| || __/ (_| |_|\n",
" /_/ \\_\\____|_____/|_| \\_____\\___/|_| |_|_| |_|\\___|\\___|\\__\\___|\\__,_(_)\n\n",
"\0"};
const char * art_a2dp_connecting[]= {"\n\n",
" ___ _____ _____ _____ _ _ \n",
" /\\ |__ \\| __ \\| __ \\ / ____| | | (_) \n",
" / \\ ) | | | | |__) | | | ___ _ __ _ __ ___ ___| |_ _ _ __ __ _ \n",
" / /\\ \\ / /| | | | ___/ | | / _ \\| '_ \\| '_ \\ / _ \\/ __| __| | '_ \\ / _` | \n",
" / ____ \\ / /_| |__| | | | |___| (_) | | | | | | | __/ (__| |_| | | | | (_| |_ _ _ \n",
" /_/ \\_\\____|_____/|_| \\_____\\___/|_| |_|_| |_|\\___|\\___|\\__|_|_| |_|\\__, (_|_|_)\n",
" __/ | \n",
" |___/ \n\n",
"\0"};
char * get_output_state_desc(output_state state){
switch (state) {
case OUTPUT_OFF:
return STR(OUTPUT_OFF);
case OUTPUT_STOPPED:
return STR(OUTPUT_STOPPED);
case OUTPUT_BUFFER:
return STR(OUTPUT_BUFFER);
case OUTPUT_RUNNING:
return STR(OUTPUT_RUNNING);
case OUTPUT_PAUSE_FRAMES:
return STR(OUTPUT_PAUSE_FRAMES);
case OUTPUT_SKIP_FRAMES:
return STR(OUTPUT_SKIP_FRAMES);
case OUTPUT_START_AT:
return STR(OUTPUT_START_AT);
default:
return "OUTPUT_UNKNOWN_STATE";
}
return "";
}
#define BT_AV_TAG "BT_AV"
extern log_level loglevel;
extern struct outputstate output;
extern struct buffer *outputbuf;
#ifdef USE_BT_RING_BUFFER
#define LOCK_BT mutex_lock(btbuf->mutex)
#define UNLOCK_BT mutex_unlock(btbuf->mutex)
extern struct buffer *btbuf;
#else
extern uint8_t * btout;
#endif
time_t disconnect_time=0;
#define LOCK mutex_lock(outputbuf->mutex)
#define UNLOCK mutex_unlock(outputbuf->mutex)
int64_t connecting_timeout = 0;
#ifndef CONFIG_A2DP_SINK_NAME
#define CONFIG_A2DP_SINK_NAME "btspeaker" // fix some compile errors when BT is not chosen
#endif
#ifndef CONFIG_A2DP_CONNECT_TIMEOUT_MS
#define CONFIG_A2DP_CONNECT_TIMEOUT_MS 2000
#endif
#ifndef CONFIG_A2DP_DEV_NAME
#define CONFIG_A2DP_DEV_NAME "espsqueezelite"
#endif
#ifndef CONFIG_A2DP_CONTROL_DELAY_MS
#define CONFIG_A2DP_CONTROL_DELAY_MS 1000
#endif
static void bt_app_av_state_connecting(uint16_t event, void *param);
#define A2DP_TIMER_INIT connecting_timeout = esp_timer_get_time() +(CONFIG_A2DP_CONNECT_TIMEOUT_MS * 1000)
#define IS_A2DP_TIMER_OVER esp_timer_get_time() >= connecting_timeout
#define FRAME_TO_BYTES(f) f*BYTES_PER_FRAME
#define BYTES_TO_FRAME(b) b/BYTES_PER_FRAME
#define RESET_ALL_MIN_MAX RESET_MIN_MAX(req); RESET_MIN_MAX(rec); RESET_MIN_MAX(bt);RESET_MIN_MAX_DURATION(lock_bt_time);RESET_MIN_MAX(under); RESET_MIN_MAX_DURATION(lock_out_time)
DECLARE_MIN_MAX(req);
DECLARE_MIN_MAX(rec);
DECLARE_MIN_MAX(bt);
DECLARE_MIN_MAX_DURATION(lock_bt_time);
DECLARE_MIN_MAX(under);
DECLARE_MIN_MAX_DURATION(lock_out_time);
static void filter_inquiry_scan_result(esp_bt_gap_cb_param_t *param);
void get_mac(u8_t mac[]) {
esp_read_mac(mac, ESP_MAC_WIFI_STA);
}
_sig_func_ptr signal(int sig, _sig_func_ptr func) {
return NULL;
}
void *audio_calloc(size_t nmemb, size_t size) {
return calloc(nmemb, size);
}
struct codec *register_mpg(void) {
LOG_INFO("mpg unavailable");
return NULL;
}
#if !CONFIG_INCLUDE_FAAD
struct codec *register_faad(void) {
LOG_INFO("aac unavailable");
return NULL;
}
#endif
#if !CONFIG_INCLUDE_MAD
struct codec *register_mad(void) {
LOG_INFO("mad unavailable");
return NULL;
}
#endif
#if !CONFIG_INCLUDE_FLAC
struct codec *register_flac(void) {
LOG_INFO("flac unavailable");
return NULL;
}
#endif
#if !CONFIG_INCLUDE_VORBIS
struct codec *register_vorbis(void) {
LOG_INFO("vorbis unavailable");
return NULL;
}
#endif
#if !CONFIG_INCLUDE_ALAC
struct codec *register_alac(void) {
LOG_INFO("alac unavailable");
return NULL;
}
#endif
#define LOG_DEBUG_EVENT(e) LOG_DEBUG("evt: " STR(e))
#define LOG_SDEBUG_EVENT(e) LOG_SDEBUG("evt: " STR(e))
/* event for handler "bt_av_hdl_stack_up */
enum {
BT_APP_EVT_STACK_UP = 0,
};
/* A2DP global state */
enum {
APP_AV_STATE_IDLE,
APP_AV_STATE_DISCOVERING,
APP_AV_STATE_DISCOVERED,
APP_AV_STATE_UNCONNECTED,
APP_AV_STATE_CONNECTING,
APP_AV_STATE_CONNECTED,
APP_AV_STATE_DISCONNECTING,
};
char * APP_AV_STATE_DESC[] = {
"APP_AV_STATE_IDLE",
"APP_AV_STATE_DISCOVERING",
"APP_AV_STATE_DISCOVERED",
"APP_AV_STATE_UNCONNECTED",
"APP_AV_STATE_CONNECTING",
"APP_AV_STATE_CONNECTED",
"APP_AV_STATE_DISCONNECTING"
};
/* sub states of APP_AV_STATE_CONNECTED */
enum {
APP_AV_MEDIA_STATE_IDLE,
APP_AV_MEDIA_STATE_STARTING,
APP_AV_MEDIA_STATE_BUFFERING,
APP_AV_MEDIA_STATE_STARTED,
APP_AV_MEDIA_STATE_STOPPING,
APP_AV_MEDIA_STATE_WAIT_DISCONNECT
};
#define BT_APP_HEART_BEAT_EVT (0xff00)
/// handler for bluetooth stack enabled events
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param);
/// callback function for A2DP source
static void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param);
/// callback function for A2DP source audio data stream
static void a2d_app_heart_beat(void *arg);
/// A2DP application state machine
static void bt_app_av_sm_hdlr(uint16_t event, void *param);
/* A2DP application state machine handler for each state */
static void bt_app_av_state_unconnected(uint16_t event, void *param);
static void bt_app_av_state_connecting(uint16_t event, void *param);
static void bt_app_av_state_connected(uint16_t event, void *param);
static void bt_app_av_state_disconnecting(uint16_t event, void *param);
static esp_bd_addr_t s_peer_bda = {0};
static uint8_t s_peer_bdname[ESP_BT_GAP_MAX_BDNAME_LEN + 1];
static int s_a2d_state = APP_AV_STATE_IDLE;
static int s_media_state = APP_AV_MEDIA_STATE_IDLE;
static uint32_t s_pkt_cnt = 0;
static TimerHandle_t s_tmr;
void hal_bluetooth_init(log_level level)
{
/*
* Bluetooth audio source init Start
*/
loglevel = level;
bt_set_log_level(level);
//running_test = false;
ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_BLE));
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
if (esp_bt_controller_init(&bt_cfg) != ESP_OK) {
LOG_ERROR("%s initialize controller failed\n", __func__);
return;
}
if (esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT) != ESP_OK) {
LOG_ERROR("%s enable controller failed\n", __func__);
return;
}
if (esp_bluedroid_init() != ESP_OK) {
LOG_ERROR("%s initialize bluedroid failed\n", __func__);
return;
}
if (esp_bluedroid_enable() != ESP_OK) {
LOG_ERROR("%s enable bluedroid failed\n", __func__);
return;
}
/* create application task */
bt_app_task_start_up();
/* Bluetooth device name, connection mode and profile set up */
bt_app_work_dispatch(bt_av_hdl_stack_evt, BT_APP_EVT_STACK_UP, NULL, 0, NULL);
#if (CONFIG_BT_SSP_ENABLED == true)
/* Set default parameters for Secure Simple Pairing */
esp_bt_sp_param_t param_type = ESP_BT_SP_IOCAP_MODE;
esp_bt_io_cap_t iocap = ESP_BT_IO_CAP_IO;
esp_bt_gap_set_security_param(param_type, &iocap, sizeof(uint8_t));
#endif
/*
* Set default parameters for Legacy Pairing
* Use variable pin, input pin code when pairing
*/
esp_bt_pin_type_t pin_type = ESP_BT_PIN_TYPE_VARIABLE;
esp_bt_pin_code_t pin_code;
esp_bt_gap_set_pin(pin_type, 0, pin_code);
}
static int32_t bt_app_a2d_data_cb(uint8_t *data, int32_t len)
{
#ifdef USE_BT_RING_BUFFER
int32_t avail_data=0,wanted_len=0, start_timer=0;
if (len < 0 || data == NULL ) {
return 0;
}
// This is how the BTC layer calculates the number of bytes to
// for us to send. (BTC_SBC_DEC_PCM_DATA_LEN * sizeof(OI_INT16) - availPcmBytes
wanted_len=len;
TIME_MEASUREMENT_START(start_timer);
SET_MIN_MAX(len,req);
LOCK_BT;
SET_MIN_MAX_SIZED(_buf_used(btbuf),bt,btbuf->size);
do {
avail_data=min(_buf_cont_read(btbuf),wanted_len);
if(avail_data>0){
memcpy(data,btbuf->readp,avail_data);
_buf_inc_readp(btbuf,avail_data);
wanted_len-=avail_data;
data+=avail_data;
}
else {
assert(wanted_len>0);
assert(avail_data==0);
SET_MIN_MAX(wanted_len, under);
}
} while (wanted_len > 0 && avail_data != 0);
UNLOCK_BT;
SET_MIN_MAX(TIME_MEASUREMENT_GET(start_timer),lock_bt_time);
SET_MIN_MAX((len-wanted_len), rec);
TIME_MEASUREMENT_START(start_timer);
output_bt_check_buffer();
SET_MIN_MAX(TIME_MEASUREMENT_GET(start_timer),lock_out_time);
return len-wanted_len;
#else
int32_t avail_data=0,wanted_len=0, start_timer=0;
if (len < 0 || data == NULL ) {
return 0;
}
btout=data;
// This is how the BTC layer calculates the number of bytes to
// for us to send. (BTC_SBC_DEC_PCM_DATA_LEN * sizeof(OI_INT16) - availPcmBytes
wanted_len=len;
SET_MIN_MAX(len,req);
TIME_MEASUREMENT_START(start_timer);
LOCK;
SET_MIN_MAX_SIZED(_buf_used(outputbuf),bt,outputbuf->size);
do {
avail_data = _output_frames( wanted_len/BYTES_PER_FRAME )*BYTES_PER_FRAME; // Keep the transfer buffer full
wanted_len-=avail_data;
} while (wanted_len > 0 && avail_data != 0);
if(wanted_len>0)
{
SET_MIN_MAX(wanted_len, under);
}
output.device_frames = 0; // todo: check if this is the right way do to this.
output.updated = gettime_ms();
output.frames_played_dmp = output.frames_played;
UNLOCK;
SET_MIN_MAX(TIME_MEASUREMENT_GET(start_timer),lock_out_time);
SET_MIN_MAX((len-wanted_len), rec);
TIME_MEASUREMENT_START(start_timer);
output_bt_check_buffer();
return len-wanted_len;
#endif
}
static void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param)
{
bt_app_work_dispatch(bt_app_av_sm_hdlr, event, param, sizeof(esp_a2d_cb_param_t), NULL);
}
void bt_app_gap_cb(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)
{
switch (event) {
case ESP_BT_GAP_DISC_RES_EVT: {
filter_inquiry_scan_result(param);
break;
}
case ESP_BT_GAP_DISC_STATE_CHANGED_EVT: {
if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STOPPED)
{
if (s_a2d_state == APP_AV_STATE_DISCOVERED)
{
LOG_INFO("Discovery completed. Ready to start connecting to %s. ",s_peer_bdname);
s_a2d_state = APP_AV_STATE_UNCONNECTED;
}
else
{
// not discovered, continue to discover
LOG_INFO("Device discovery failed, continue to discover...");
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
}
}
else if (param->disc_st_chg.state == ESP_BT_GAP_DISCOVERY_STARTED) {
LOG_INFO("Discovery started.");
}
else
{
LOG_DEBUG("This shouldn't happen. Discovery has only 2 states (for now).");
}
break;
}
case ESP_BT_GAP_RMT_SRVCS_EVT:
LOG_DEBUG_EVENT(ESP_BT_GAP_RMT_SRVCS_EVT);
break;
case ESP_BT_GAP_RMT_SRVC_REC_EVT:
LOG_DEBUG_EVENT(ESP_BT_GAP_RMT_SRVC_REC_EVT);
break;
case ESP_BT_GAP_AUTH_CMPL_EVT: {
if (param->auth_cmpl.stat == ESP_BT_STATUS_SUCCESS) {
LOG_INFO("authentication success: %s", param->auth_cmpl.device_name);
//esp_log_buffer_hex(param->auth_cmpl.bda, ESP_BD_ADDR_LEN);
} else {
LOG_ERROR("authentication failed, status:%d", param->auth_cmpl.stat);
}
break;
}
case ESP_BT_GAP_PIN_REQ_EVT: {
LOG_INFO("ESP_BT_GAP_PIN_REQ_EVT min_16_digit:%d", param->pin_req.min_16_digit);
if (param->pin_req.min_16_digit) {
LOG_INFO("Input pin code: 0000 0000 0000 0000");
esp_bt_pin_code_t pin_code = {0};
esp_bt_gap_pin_reply(param->pin_req.bda, true, 16, pin_code);
} else {
LOG_INFO("Input pin code: 1234");
esp_bt_pin_code_t pin_code;
pin_code[0] = '1';
pin_code[1] = '2';
pin_code[2] = '3';
pin_code[3] = '4';
esp_bt_gap_pin_reply(param->pin_req.bda, true, 4, pin_code);
}
break;
}
#if (CONFIG_BT_SSP_ENABLED == true)
case ESP_BT_GAP_CFM_REQ_EVT:
LOG_INFO("ESP_BT_GAP_CFM_REQ_EVT Please compare the numeric value: %d", param->cfm_req.num_val);
esp_bt_gap_ssp_confirm_reply(param->cfm_req.bda, true);
break;
case ESP_BT_GAP_KEY_NOTIF_EVT:
LOG_INFO("ESP_BT_GAP_KEY_NOTIF_EVT passkey:%d", param->key_notif.passkey);
break;
LOG_INFO("ESP_BT_GAP_KEY_REQ_EVT Please enter passkey!");
break;
#endif
default: {
LOG_INFO("event: %d", event);
break;
}
}
return;
}
static void a2d_app_heart_beat(void *arg)
{
bt_app_work_dispatch(bt_app_av_sm_hdlr, BT_APP_HEART_BEAT_EVT, NULL, 0, NULL);
}
static void bt_app_av_sm_hdlr(uint16_t event, void *param)
{
//LOG_DEBUG("%s state %s, evt 0x%x, output state: %d", __func__, APP_AV_STATE_DESC[s_a2d_state], event, output.state);
switch (s_a2d_state) {
case APP_AV_STATE_DISCOVERING:
LOG_SDEBUG("state %s, evt 0x%x, output state: %s", APP_AV_STATE_DESC[s_a2d_state], event, get_output_state_desc(output.state));
break;
case APP_AV_STATE_DISCOVERED:
LOG_SDEBUG("state %s, evt 0x%x, output state: %s", APP_AV_STATE_DESC[s_a2d_state], event, get_output_state_desc(output.state));
break;
case APP_AV_STATE_UNCONNECTED:
bt_app_av_state_unconnected(event, param);
break;
case APP_AV_STATE_CONNECTING:
bt_app_av_state_connecting(event, param);
break;
case APP_AV_STATE_CONNECTED:
bt_app_av_state_connected(event, param);
break;
case APP_AV_STATE_DISCONNECTING:
bt_app_av_state_disconnecting(event, param);
break;
default:
LOG_ERROR("%s invalid state %d", __func__, s_a2d_state);
break;
}
}
static char *bda2str(esp_bd_addr_t bda, char *str, size_t size)
{
if (bda == NULL || str == NULL || size < 18) {
return NULL;
}
uint8_t *p = bda;
sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
p[0], p[1], p[2], p[3], p[4], p[5]);
return str;
}
static bool get_name_from_eir(uint8_t *eir, uint8_t *bdname, uint8_t *bdname_len)
{
uint8_t *rmt_bdname = NULL;
uint8_t rmt_bdname_len = 0;
if (!eir) {
return false;
}
rmt_bdname = esp_bt_gap_resolve_eir_data(eir, ESP_BT_EIR_TYPE_CMPL_LOCAL_NAME, &rmt_bdname_len);
if (!rmt_bdname) {
rmt_bdname = esp_bt_gap_resolve_eir_data(eir, ESP_BT_EIR_TYPE_SHORT_LOCAL_NAME, &rmt_bdname_len);
}
if (rmt_bdname) {
if (rmt_bdname_len > ESP_BT_GAP_MAX_BDNAME_LEN) {
rmt_bdname_len = ESP_BT_GAP_MAX_BDNAME_LEN;
}
if (bdname) {
memcpy(bdname, rmt_bdname, rmt_bdname_len);
bdname[rmt_bdname_len] = '\0';
}
if (bdname_len) {
*bdname_len = rmt_bdname_len;
}
return true;
}
return false;
}
#define LOG_INFO_NO_LF(fmt, ...) if (loglevel >= lINFO) logprint(fmt, ##__VA_ARGS__)
static void filter_inquiry_scan_result(esp_bt_gap_cb_param_t *param)
{
char bda_str[18];
uint32_t cod = 0;
int32_t rssi = -129; /* invalid value */
uint8_t *eir = NULL;
uint8_t nameLen = 0;
esp_bt_gap_dev_prop_t *p;
memset(s_peer_bdname, 0x00,sizeof(s_peer_bdname));
LOG_INFO("\n=======================\nScanned device: %s", bda2str(param->disc_res.bda, bda_str, 18));
for (int i = 0; i < param->disc_res.num_prop; i++) {
p = param->disc_res.prop + i;
switch (p->type) {
case ESP_BT_GAP_DEV_PROP_COD:
cod = *(uint32_t *)(p->val);
LOG_INFO_NO_LF("\n-- Class of Device: 0x%x", cod);
break;
case ESP_BT_GAP_DEV_PROP_RSSI:
rssi = *(int8_t *)(p->val);
LOG_INFO_NO_LF("\n-- RSSI: %d", rssi);
break;
case ESP_BT_GAP_DEV_PROP_EIR:
eir = (uint8_t *)(p->val);
LOG_INFO_NO_LF("\n-- EIR: %d", eir);
break;
case ESP_BT_GAP_DEV_PROP_BDNAME:
nameLen = (p->len > ESP_BT_GAP_MAX_BDNAME_LEN) ? ESP_BT_GAP_MAX_BDNAME_LEN : (uint8_t)p->len;
memcpy(s_peer_bdname, (uint8_t *)(p->val), nameLen);
s_peer_bdname[nameLen] = '\0';
LOG_INFO_NO_LF("\n-- Name: %s", s_peer_bdname);
break;
default:
break;
}
}
if (!esp_bt_gap_is_valid_cod(cod)){
/* search for device with MAJOR service class as "rendering" in COD */
LOG_INFO_NO_LF("\n--Invalid class of device. Skipping.\n");
return;
}
else if (!(esp_bt_gap_get_cod_srvc(cod) & ESP_BT_COD_SRVC_RENDERING))
{
LOG_INFO_NO_LF("\n--Not a rendering device. Skipping.\n");
return;
}
/* search for device named "ESP_SPEAKER" in its extended inqury response */
if (eir) {
LOG_INFO_NO_LF("\n--Getting details from eir.\n");
get_name_from_eir(eir, s_peer_bdname, NULL);
LOG_INFO_NO_LF("\n--Device name is %s\n",s_peer_bdname);
}
if (strcmp((char *)s_peer_bdname, CONFIG_A2DP_SINK_NAME) == 0) {
LOG_INFO_NO_LF("Found a target device! address %s, name %s", bda_str, s_peer_bdname);
LOG_INFO_NO_LF("\n=======================\n");
if(esp_bt_gap_cancel_discovery()!=ESP_ERR_INVALID_STATE)
{
LOG_INFO("Cancel device discovery ...");
memcpy(s_peer_bda, param->disc_res.bda, ESP_BD_ADDR_LEN);
s_a2d_state = APP_AV_STATE_DISCOVERED;
}
else
{
LOG_ERROR("Cancel device discovery failed...");
}
}
else
{
LOG_INFO("Not the device we are looking for. Continuing scan.");
}
}
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param)
{
switch (event) {
case BT_APP_EVT_STACK_UP: {
LOG_INFO("BT Stack going up.");
/* set up device name */
char *dev_name = CONFIG_A2DP_DEV_NAME;
esp_bt_dev_set_device_name(dev_name);
LOG_INFO("Preparing to connect to device: %s",CONFIG_A2DP_SINK_NAME);
/* register GAP callback function */
esp_bt_gap_register_callback(bt_app_gap_cb);
/* initialize A2DP source */
esp_a2d_register_callback(&bt_app_a2d_cb);
esp_a2d_source_register_data_callback(bt_app_a2d_data_cb);
esp_a2d_source_init();
/* set discoverable and connectable mode */
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
/* start device discovery */
LOG_INFO("Starting device discovery...");
s_a2d_state = APP_AV_STATE_DISCOVERING;
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
/* create and start heart beat timer */
do {
int tmr_id = 0;
s_tmr = xTimerCreate("connTmr", (CONFIG_A2DP_CONTROL_DELAY_MS / portTICK_RATE_MS),
pdTRUE, (void *)tmr_id, a2d_app_heart_beat);
xTimerStart(s_tmr, portMAX_DELAY);
} while (0);
break;
}
default:
LOG_ERROR("%s unhandled evt %d", __func__, event);
break;
}
}
#ifdef BTAUDIO
bool test_open(const char *device, unsigned rates[], bool userdef_rates) {
// running_test = true;
// while(running_test)
// {
// // wait until BT playback has started
// // this will allow querying the sample rate
// usleep(100000);
// }
memset(rates, 0, MAX_SUPPORTED_SAMPLERATES * sizeof(unsigned));
if (!strcmp(device, "BT")) {
rates[0] = 44100;
} else {
unsigned _rates[] = { 96000, 88200, 48000, 44100, 32000, 0 };
memcpy(rates, _rates, sizeof(_rates));
}
return true;
}
#endif
static void bt_app_av_media_proc(uint16_t event, void *param)
{
esp_a2d_cb_param_t *a2d = NULL;
LOCK;
output_state out_state=output.state;
unsigned start_frames = output.start_frames;
UNLOCK;
#ifdef USE_BT_RING_BUFFER
LOCK_BT;
unsigned bt_buffer_used=_buf_used(btbuf);
UNLOCK_BT;
#endif
switch (s_media_state) {
case APP_AV_MEDIA_STATE_IDLE: {
if (event == BT_APP_HEART_BEAT_EVT) {
if(out_state > OUTPUT_OFF)
{
LOG_INFO("Output state is %s, a2dp media ready and connected. Checking if A2DP is ready.", get_output_state_desc(out_state));
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_CHECK_SRC_RDY);
}
} else if (event == ESP_A2D_MEDIA_CTRL_ACK_EVT) {
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->media_ctrl_stat.cmd == ESP_A2D_MEDIA_CTRL_CHECK_SRC_RDY &&
a2d->media_ctrl_stat.status == ESP_A2D_MEDIA_CTRL_ACK_SUCCESS
) {
LOG_INFO("a2dp media ready, waiting for media buffering ...");
s_media_state = APP_AV_MEDIA_STATE_BUFFERING;
}
}
break;
}
case APP_AV_MEDIA_STATE_BUFFERING: {
if (event == BT_APP_HEART_BEAT_EVT) {
switch (out_state) {
case OUTPUT_RUNNING :
case OUTPUT_PAUSE_FRAMES :
case OUTPUT_SKIP_FRAMES:
case OUTPUT_START_AT:
#ifndef USE_BT_RING_BUFFER
case OUTPUT_BUFFER:
#endif
// Buffer is ready, local buffer has some data, start playback!
LOG_INFO("Buffering complete, out state is %s, a2dp media ready and connected. Starting playback! ", get_output_state_desc(out_state));
s_media_state = APP_AV_MEDIA_STATE_STARTING;
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_START);
#ifdef USE_BT_RING_BUFFER
break;
case OUTPUT_BUFFER:
LOG_DEBUG("Buffering... BT Buffer: %d bytes. Start threshold: %u, ",bt_buffer_used, start_frames*BYTES_PER_FRAME);
#endif
break;
case OUTPUT_STOPPED:
case OUTPUT_OFF:
LOG_DEBUG("Output state is %s. Changing app status to ",get_output_state_desc(out_state));
s_media_state = APP_AV_MEDIA_STATE_STOPPING;
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
#ifdef USE_BT_RING_BUFFER
output_bt_check_buffer();
#endif
break;
default:
LOG_ERROR("Unknown output status while waiting for buffering to complete %d",out_state);
break;
}
}
else{
LOG_WARN("Received unknown event while in state APP_AV_MEDIA_STATE_BUFFERING");
}
break;
}
case APP_AV_MEDIA_STATE_STARTING: {
if (event == ESP_A2D_MEDIA_CTRL_ACK_EVT) {
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->media_ctrl_stat.cmd == ESP_A2D_MEDIA_CTRL_START &&
a2d->media_ctrl_stat.status == ESP_A2D_MEDIA_CTRL_ACK_SUCCESS) {
LOG_INFO("a2dp media started successfully.");
s_media_state = APP_AV_MEDIA_STATE_STARTED;
} else {
// not started succesfully, transfer to idle state
LOG_INFO("a2dp media start failed.");
s_media_state = APP_AV_MEDIA_STATE_IDLE;
}
}
break;
}
case APP_AV_MEDIA_STATE_STARTED: {
if (event == BT_APP_HEART_BEAT_EVT) {
if(out_state <= OUTPUT_STOPPED) {
LOG_INFO("Output state is stopped. Stopping a2dp media ...");
s_media_state = APP_AV_MEDIA_STATE_STOPPING;
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
#ifdef USE_BT_RING_BUFFER
output_bt_check_buffer();
#endif
}
else
{
static time_t lastTime=0;
if (lastTime <= gettime_ms() )
{
lastTime = gettime_ms() + 15000;
LOG_DEBUG( " +==========+==========+================+=====+================+");
LOG_DEBUG( " | max | min | average | avg | count |");
LOG_DEBUG( " | (bytes) | (bytes) | (bytes) | pct | |");
LOG_DEBUG( " +==========+==========+================+=====+================+");
LOG_DEBUG(LINE_MIN_MAX_FORMAT,LINE_MIN_MAX("available",bt));
LOG_DEBUG(LINE_MIN_MAX_FORMAT,LINE_MIN_MAX("requested",req));
LOG_DEBUG(LINE_MIN_MAX_FORMAT,LINE_MIN_MAX("received",rec));
LOG_DEBUG(LINE_MIN_MAX_FORMAT,LINE_MIN_MAX("underrun",under));
LOG_DEBUG( " +==========+==========+================+=====+================+");
LOG_DEBUG("\n");
LOG_DEBUG(" ==========+==========+===========+===========+ ");
LOG_DEBUG(" max (us) | min (us) | avg(us) | count | ");
LOG_DEBUG(" ==========+==========+===========+===========+ ");
LOG_DEBUG(LINE_MIN_MAX_DURATION_FORMAT,LINE_MIN_MAX_DURATION("BT Buf Lock",lock_bt_time));
LOG_DEBUG(LINE_MIN_MAX_DURATION_FORMAT,LINE_MIN_MAX_DURATION("Out Buf Lock",lock_out_time));
LOG_DEBUG(" ==========+==========+===========+===========+");
RESET_ALL_MIN_MAX;
}
}
}
break;
}
case APP_AV_MEDIA_STATE_STOPPING: {
LOG_DEBUG_EVENT(APP_AV_MEDIA_STATE_STOPPING);
if (event == ESP_A2D_MEDIA_CTRL_ACK_EVT) {
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->media_ctrl_stat.cmd == ESP_A2D_MEDIA_CTRL_STOP &&
a2d->media_ctrl_stat.status == ESP_A2D_MEDIA_CTRL_ACK_SUCCESS) {
LOG_INFO("a2dp media stopped successfully...");
//s_media_state = APP_AV_MEDIA_STATE_WAIT_DISCONNECT;
// if(CONFIG_A2DP_DISCONNECT_MS==0){
// we're not going to disconnect.
s_media_state = APP_AV_MEDIA_STATE_IDLE;
// }
// else
// {
// disconnect_time = gettime_ms()+CONFIG_A2DP_DISCONNECT_MS;
// s_media_state = APP_AV_MEDIA_STATE_WAIT_DISCONNECT;
// }
} else {
LOG_INFO("a2dp media stopping...");
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
}
}
break;
}
case APP_AV_MEDIA_STATE_WAIT_DISCONNECT:{
if(gettime_ms()>disconnect_time){
// we've reached timeout
esp_a2d_source_disconnect(s_peer_bda);
s_a2d_state = APP_AV_STATE_DISCONNECTING;
}
}
}
}
static void bt_app_av_state_unconnected(uint16_t event, void *param)
{
// LOCK;
// output_state out_state= output.state;
// UNLOCK;
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT:
LOG_DEBUG_EVENT(ESP_A2D_CONNECTION_STATE_EVT);
// this could happen if connection was established
// right after we timed out. Pass the call down to the connecting
// handler.
esp_a2d_cb_param_t *a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_CONNECTED){
bt_app_av_state_connecting(event, param);
}
break;
case ESP_A2D_AUDIO_STATE_EVT:
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_STATE_EVT);
break;
case ESP_A2D_AUDIO_CFG_EVT:
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_CFG_EVT);
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
LOG_DEBUG_EVENT(ESP_A2D_MEDIA_CTRL_ACK_EVT);
break;
case BT_APP_HEART_BEAT_EVT: {
// uint8_t *p = s_peer_bda;
// LOG_INFO("BT_APP_HEART_BEAT_EVT a2dp connecting to peer: %02x:%02x:%02x:%02x:%02x:%02x",p[0], p[1], p[2], p[3], p[4], p[5]);
switch (esp_bluedroid_get_status()) {
case ESP_BLUEDROID_STATUS_UNINITIALIZED:
LOG_SDEBUG("BlueDroid Status is ESP_BLUEDROID_STATUS_UNINITIALIZED.");
break;
case ESP_BLUEDROID_STATUS_INITIALIZED:
LOG_SDEBUG("BlueDroid Status is ESP_BLUEDROID_STATUS_INITIALIZED.");
break;
case ESP_BLUEDROID_STATUS_ENABLED:
LOG_SDEBUG("BlueDroid Status is ESP_BLUEDROID_STATUS_ENABLED.");
break;
default:
break;
}
// if(out_state > OUTPUT_STOPPED){
// only attempt a connect when playback isn't stopped
if(esp_a2d_source_connect(s_peer_bda)==ESP_OK) {
s_a2d_state = APP_AV_STATE_CONNECTING;
for(uint8_t l=0;art_a2dp_connecting[l][0]!='\0';l++){
LOG_INFO_NO_LF("%s",art_a2dp_connecting[l]);
}
LOG_INFO("********** A2DP CONNECTING TO %s", s_peer_bdname);
A2DP_TIMER_INIT;
}
else {
// there was an issue connecting... continue to discover
LOG_ERROR("Attempt at connecting failed, restart at discover...");
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
// }
}
break;
}
default:
LOG_ERROR("%s unhandled evt %d", __func__, event);
break;
}
}
static void bt_app_av_state_connecting(uint16_t event, void *param)
{
esp_a2d_cb_param_t *a2d = NULL;
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT: {
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_CONNECTED) {
s_a2d_state = APP_AV_STATE_CONNECTED;
s_media_state = APP_AV_MEDIA_STATE_IDLE;
for(uint8_t l=0;art_a2dp_connected[l][0]!='\0';l++){
LOG_INFO_NO_LF("%s",art_a2dp_connected[l]);
}
LOG_DEBUG("Setting scan mode to ESP_BT_NON_CONNECTABLE, ESP_BT_NON_DISCOVERABLE");
esp_bt_gap_set_scan_mode(ESP_BT_NON_CONNECTABLE, ESP_BT_NON_DISCOVERABLE);
LOG_DEBUG("Done setting scan mode. App state is now CONNECTED and media state IDLE.");
} else if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
s_a2d_state = APP_AV_STATE_UNCONNECTED;
}
break;
}
case ESP_A2D_AUDIO_STATE_EVT:
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_STATE_EVT);
break;
case ESP_A2D_AUDIO_CFG_EVT:
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_CFG_EVT);
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
LOG_DEBUG_EVENT(ESP_A2D_MEDIA_CTRL_ACK_EVT);
break;
case BT_APP_HEART_BEAT_EVT:
if (IS_A2DP_TIMER_OVER)
{
s_a2d_state = APP_AV_STATE_UNCONNECTED;
LOG_ERROR("A2DP Connect time out! Setting state to Unconnected. ");
A2DP_TIMER_INIT;
}
LOG_SDEBUG("BT_APP_HEART_BEAT_EVT");
break;
default:
LOG_ERROR("%s unhandled evt %d", __func__, event);
break;
}
}
static void bt_app_av_state_connected(uint16_t event, void *param)
{
esp_a2d_cb_param_t *a2d = NULL;
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT: {
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
LOG_INFO("a2dp disconnected");
s_a2d_state = APP_AV_STATE_UNCONNECTED;
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
}
break;
}
case ESP_A2D_AUDIO_STATE_EVT: {
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_STATE_EVT);
a2d = (esp_a2d_cb_param_t *)(param);
if (ESP_A2D_AUDIO_STATE_STARTED == a2d->audio_stat.state) {
s_pkt_cnt = 0;
}
break;
}
case ESP_A2D_AUDIO_CFG_EVT:
// not suppposed to occur for A2DP source
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_CFG_EVT);
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:{
LOG_SDEBUG_EVENT(ESP_A2D_MEDIA_CTRL_ACK_EVT);
bt_app_av_media_proc(event, param);
break;
}
case BT_APP_HEART_BEAT_EVT: {
LOG_SDEBUG_EVENT(BT_APP_HEART_BEAT_EVT);
bt_app_av_media_proc(event, param);
break;
}
default:
LOG_ERROR("%s unhandled evt %d", __func__, event);
break;
}
}
static void bt_app_av_state_disconnecting(uint16_t event, void *param)
{
esp_a2d_cb_param_t *a2d = NULL;
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT: {
LOG_DEBUG_EVENT(ESP_A2D_CONNECTION_STATE_EVT);
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
LOG_INFO("a2dp disconnected");
s_a2d_state = APP_AV_STATE_UNCONNECTED;
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
}
break;
}
case ESP_A2D_AUDIO_STATE_EVT:
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_STATE_EVT);
break;
case ESP_A2D_AUDIO_CFG_EVT:
LOG_DEBUG_EVENT(ESP_A2D_AUDIO_CFG_EVT);
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
LOG_DEBUG_EVENT(ESP_A2D_MEDIA_CTRL_ACK_EVT);
break;
case BT_APP_HEART_BEAT_EVT:
LOG_DEBUG_EVENT(BT_APP_HEART_BEAT_EVT);
break;
default:
LOG_ERROR("%s unhandled evt %d", __func__, event);
break;
}
}
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