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832180a4e446fd1c60f62a42e4edcbe6e44a3f31
squeezelite-esp32/main/esp32.c
Sebastien Leclerc 832180a4e4 Ring buffer implementation 
First stab at implementing a ring buffer. Now tuning should be done.
The statistics report causes jitters and can be deactivated by lowering
the output verbosity.
2019-06-06 08:41:28 -04:00

889 lines
28 KiB
C
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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 "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"
#define BT_AV_TAG "BT_AV"
u8_t *bt_optr;
extern log_level loglevel;
extern struct outputstate output;
extern struct buffer *outputbuf;
extern struct buffer *streambuf;
#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
#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 FRAMES_TO_MS(f) 1000*f/output.current_sample_rate
#define BYTES_TO_MS(b) FRAMES_TO_MS(BYTES_TO_FRAME(b))
#define SET_MIN_MAX(val,var) var=val; if(var<min_##var) min_##var=var; if(var>max_##var) max_##var=var
#define RESET_MIN_MAX(var,mv) min_##var=mv##_MAX; max_##var=mv##_MIN
#define DECLARE_MIN_MAX(var,t,mv) static t min_##var = mv##_MAX, max_##var = mv##_MIN; t var=0
#define DECLARE_ALL_MIN_MAX DECLARE_MIN_MAX(req, long,LONG); DECLARE_MIN_MAX(o, long,LONG); DECLARE_MIN_MAX(s, long,LONG); DECLARE_MIN_MAX(d, long,LONG);
#define RESET_ALL_MIN_MAX RESET_MIN_MAX(d,LONG); RESET_MIN_MAX(o,LONG); RESET_MIN_MAX(s,LONG); RESET_MIN_MAX(req,LONG);
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_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 int32_t bt_app_a2d_data_cb(uint8_t *data, int32_t len);
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 int s_intv_cnt = 0;
static uint32_t s_pkt_cnt = 0;
static TimerHandle_t s_tmr;
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;
}
void hal_bluetooth_init(log_level level)
{
/*
* Bluetooth audio source init Start
*/
loglevel = 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 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("--\nDevice name is %s",s_peer_bdname);
}
if (strcmp((char *)s_peer_bdname, CONFIG_A2DP_SINK_NAME) == 0) {
LOG_INFO("Found a target device, address %s, name %s", bda_str, s_peer_bdname);
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.");
}
}
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)
{
if(esp_a2d_source_connect(s_peer_bda)!=ESP_ERR_INVALID_STATE)
{
s_a2d_state = APP_AV_STATE_CONNECTING;
LOG_INFO("Device discovery stopped. a2dp connecting to peer: %s", s_peer_bdname);
A2DP_TIMER_INIT;
}
else
{
// not discovered, continue to discover
LOG_INFO("Attempt at connecting failed, resuming discover...");
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
}
}
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 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;
}
}
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);
}
static int32_t bt_app_a2d_data_cb(uint8_t *data, int32_t len)
{
frames_t frames;
static int count = 0;
DECLARE_ALL_MIN_MAX;
if (len < 0 || data == NULL ) {
return 0;
}
// bail out if A2DP isn't connected
LOCK;
// if(s_media_state != APP_AV_MEDIA_STATE_STARTED)
// {
// UNLOCK;
// return 0;
// }
//
///* Normally, we would want BT to not call us back unless we are not in BUFFERING state.
// That requires BT to not start until we are > OUTPUT_BUFFER
// // come back later, we are buffering (or stopped, need to handle that case ...) but we don't want silence */
// if (output.state == OUTPUT_BUFFER) {
// UNLOCK;
// int32_t silence_bytes = (len >MAX_SILENCE_FRAMES * BYTES_PER_FRAME?MAX_SILENCE_FRAMES * BYTES_PER_FRAME:len;
// memcpy(bt_optr, (u8_t *)silencebuf, silence_bytes);
// return actual_len;
// }
// 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
frames = len / BYTES_PER_FRAME;
output.device_frames = 0;
output.updated = gettime_ms();
output.frames_played_dmp = output.frames_played;
//if (output.threshold < 20) output.threshold = 20;
frames_t wanted_frames=len/BYTES_PER_FRAME;
bt_optr = data; // needed for the _write_frames callback
do {
frames = _output_frames(wanted_frames);
wanted_frames -= frames;
} while (wanted_frames > 0 && frames != 0);
if (wanted_frames > 0) {
LOG_DEBUG("need to pad with silence");
memset(bt_optr, 0, wanted_frames * BYTES_PER_FRAME);
}
UNLOCK;
SET_MIN_MAX(_buf_used(outputbuf),o);
SET_MIN_MAX(_buf_used(streambuf),s);
SET_MIN_MAX(frames,req);
if (!(count++ & 0x1ff)) {
LOG_INFO( "count:%d"
"\n ----------+----------+-----------+ +----------+----------+----------------+"
"\n max | min | current| | max | min | current |"
"\n (ms) | (ms) | (ms)| | (frames) | (frames) | (frames)|"
"\n ----------+----------+-----------+ +----------+----------+----------------+"
"\nout %10d|%10d|%11d|" " |%10d|%10d|%16d|"
"\nstream %10d|%10d|%11d|" " |%10d|%10d|%16d|"
"\nN/A %10d|%10d|%11d|" " |%10d|%10d|%16d|"
"\nrequested %10d|%10d|%11d|" " |%10d|%10d|%16d|"
"\n ----------+----------+-----------+ +----------+----------+----------------+",
count,
BYTES_TO_MS(max_o), BYTES_TO_MS(min_o),BYTES_TO_MS(o),max_o,min_o,o,
BYTES_TO_MS(max_s), BYTES_TO_MS(min_s),BYTES_TO_MS(s),max_s,min_s,s,
BYTES_TO_MS(max_d),BYTES_TO_MS(min_d),BYTES_TO_MS(d),max_d,min_d,d,
FRAMES_TO_MS(req),FRAMES_TO_MS(req),FRAMES_TO_MS(req), req, req,req);
RESET_ALL_MIN_MAX;
}
return frames * BYTES_PER_FRAME;
}
#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 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_DEBUG("state %s, evt 0x%x, output state: %d", APP_AV_STATE_DESC[s_a2d_state], event, output.state);
break;
case APP_AV_STATE_DISCOVERED:
LOG_DEBUG("state %s, evt 0x%x, output state: %d", APP_AV_STATE_DESC[s_a2d_state], event, 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 void bt_app_av_state_unconnected(uint16_t event, void *param)
{
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT:
LOG_DEBUG_EVENT(ESP_A2D_CONNECTION_STATE_EVT);
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_INFO("BlueDroid Status is ESP_BLUEDROID_STATUS_UNINITIALIZED.");
break;
case ESP_BLUEDROID_STATUS_INITIALIZED:
LOG_INFO("BlueDroid Status is ESP_BLUEDROID_STATUS_INITIALIZED.");
break;
case ESP_BLUEDROID_STATUS_ENABLED:
LOG_INFO("BlueDroid Status is ESP_BLUEDROID_STATUS_ENABLED.");
break;
default:
break;
}
if(esp_a2d_source_connect(s_peer_bda)!=ESP_ERR_INVALID_STATE)
{
s_a2d_state = APP_AV_STATE_CONNECTING;
LOG_INFO("a2dp connecting to peer: %s", s_peer_bdname);
A2DP_TIMER_INIT;
}
else
{
// not discovered, continue to discover
LOG_INFO("Attempt at connecting failed, resuming 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) {
LOG_INFO("a2dp connected! Stopping scan. ");
s_a2d_state = APP_AV_STATE_CONNECTED;
s_media_state = APP_AV_MEDIA_STATE_IDLE;
esp_bt_gap_set_scan_mode(ESP_BT_NON_CONNECTABLE, ESP_BT_NON_DISCOVERABLE);
} 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_DEBUG("Connect timed out. Setting state to Unconnected. ");
}
LOG_SDEBUG("BT_APP_HEART_BEAT_EVT");
break;
default:
LOG_ERROR("%s unhandled evt %d", __func__, event);
break;
}
}
static void bt_app_av_media_proc(uint16_t event, void *param)
{
esp_a2d_cb_param_t *a2d = NULL;
switch (s_media_state) {
case APP_AV_MEDIA_STATE_IDLE: {
if (event == BT_APP_HEART_BEAT_EVT) {
if(output.state < OUTPUT_STOPPED )
{
// TODO: anything to do while we are waiting? Should we check if we're still connected?
}
else if(output.state >= OUTPUT_BUFFER )
{
LOG_INFO("buffering output, a2dp media ready and connected. Starting checking if ready...");
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_CHECK_SRC_RDY);
}
// else if(running_test)
// {
// LOG_INFO("buffering output, a2dp media ready and connected. Starting checking if ready...");
//
// 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, starting media playback ...");
s_media_state = APP_AV_MEDIA_STATE_STARTING;
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_START);
}
}
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_intv_cnt = 0;
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(output.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);
s_intv_cnt = 0;
}
}
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;
s_media_state = APP_AV_MEDIA_STATE_IDLE;
// todo: should we disconnect?
// esp_a2d_source_disconnect(s_peer_bda);
// s_a2d_state = APP_AV_STATE_DISCONNECTING;
} else {
LOG_INFO("a2dp media stopping...");
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
}
}
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_DEBUG_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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