#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include "esp_log.h"
#include "esp_bt.h"
#include "esp_bt_device.h"
#include "esp_bt_main.h"
#include "esp_gap_bt_api.h"
#include "esp_a2dp_api.h"
#include "esp_console.h"
#include "esp_pthread.h"
#include "esp_system.h"
#include "esp_wifi.h"
#include "freertos/timers.h"
#include "argtable3/argtable3.h"
#include "bt_app_core.h"
#include "trace.h"
static const char * TAG = "platform";
extern int32_t output_bt_data(uint8_t *data, int32_t len);
extern void output_bt_tick(void);
extern char* output_state_str(void);
extern bool output_stopped(void);
int64_t connecting_timeout = 0;
static const char * art_a2dp_connected[]={"\n",
" ___ _____ _____ _____ _ _ _ ",
" /\\ |__ \\| __ \\| __ \\ / ____| | | | | |",
" / \\ ) | | | | |__) | | | ___ _ __ _ __ ___ ___| |_ ___ __| | |",
" / /\\ \\ / /| | | | ___/ | | / _ \\| '_ \\| '_ \\ / _ \\/ __| __/ _ \\/ _` | |",
" / ____ \\ / /_| |__| | | | |___| (_) | | | | | | | __/ (__| || __/ (_| |_|",
" /_/ \\_\\____|_____/|_| \\_____\\___/|_| |_|_| |_|\\___|\\___|\\__\\___|\\__,_(_)\n",
"\0"};
static const char * art_a2dp_connecting[]= {"\n",
" ___ _____ _____ _____ _ _ ",
" /\\ |__ \\| __ \\| __ \\ / ____| | | (_) ",
" / \\ ) | | | | |__) | | | ___ _ __ _ __ ___ ___| |_ _ _ __ __ _ ",
" / /\\ \\ / /| | | | ___/ | | / _ \\| '_ \\| '_ \\ / _ \\/ __| __| | '_ \\ / _` | ",
" / ____ \\ / /_| |__| | | | |___| (_) | | | | | | | __/ (__| |_| | | | | (_| |_ _ _ ",
" /_/ \\_\\____|_____/|_| \\_____\\___/|_| |_|_| |_|\\___|\\___|\\__|_|_| |_|\\__, (_|_|_)",
" __/ | ",
" |___/ \n",
"\0"};
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
static void filter_inquiry_scan_result(esp_bt_gap_cb_param_t *param);
/* 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;
static struct {
int control_delay;
int connect_timeout_delay;
char sink_name[32];
} squeezelite_conf;
void hal_bluetooth_init(const char * options)
{
struct {
struct arg_str *sink_name;
struct arg_int *control_delay;
struct arg_int *connect_timeout_delay;
struct arg_end *end;
} squeezelite_args;
ESP_LOGD(TAG,"Initializing Bluetooth HAL");
squeezelite_args.sink_name = arg_str1("n", "name", "<sink name>", "the name of the bluetooth to connect to");
squeezelite_args.control_delay = arg_int0("d", "delay", "<control delay>", "the delay between each pass at the A2DP control loop");
squeezelite_args.connect_timeout_delay = arg_int0("t","timeout", "<timeout>", "the timeout duration for connecting to the A2DP sink");
squeezelite_args.end = arg_end(2);
ESP_LOGD(TAG,"Copying parameters");
char * opts = strdup(options);
char **argv = malloc(sizeof(char**)*15);
size_t argv_size=15;
// change parms so ' appear as " for parsing the options
for (char* p = opts; (p = strchr(p, '\'')); ++p) *p = '"';
ESP_LOGD(TAG,"Splitting arg line: %s", opts);
argv_size = esp_console_split_argv(opts, argv, argv_size);
ESP_LOGD(TAG,"Parsing parameters");
int nerrors = arg_parse(argv_size , argv, (void **) &squeezelite_args);
if (nerrors != 0) {
ESP_LOGD(TAG,"Parsing Errors");
arg_print_errors(stdout, squeezelite_args.end, "BT");
arg_print_glossary_gnu(stdout, (void **) &squeezelite_args);
free(opts);
free(argv);
return;
}
if(squeezelite_args.sink_name->count == 0)
{
ESP_LOGD(TAG,"Using default sink name : %s",CONFIG_A2DP_SINK_NAME);
strncpy(squeezelite_conf.sink_name, CONFIG_A2DP_SINK_NAME, 32);
} else {
strncpy(squeezelite_conf.sink_name, squeezelite_args.sink_name->sval[0], 32);
}
if(squeezelite_args.connect_timeout_delay->count == 0)
{
ESP_LOGD(TAG,"Using default connect timeout");
squeezelite_conf.connect_timeout_delay=CONFIG_A2DP_CONNECT_TIMEOUT_MS;
} else {
squeezelite_conf.connect_timeout_delay=squeezelite_args.connect_timeout_delay->ival[0];
}
if(squeezelite_args.control_delay->count == 0)
{
ESP_LOGD(TAG,"Using default control delay");
squeezelite_conf.control_delay=CONFIG_A2DP_CONTROL_DELAY_MS;
} else {
squeezelite_conf.control_delay=squeezelite_args.control_delay->ival[0];
}
ESP_LOGD(TAG,"Freeing options");
free(argv);
free(opts);
/*
* Bluetooth audio source init Start
*/
//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) {
ESP_LOGE(TAG,"%s initialize controller failed\n", __func__);
return;
}
if (esp_bt_controller_enable(ESP_BT_MODE_CLASSIC_BT) != ESP_OK) {
ESP_LOGE(TAG,"%s enable controller failed\n", __func__);
return;
}
if (esp_bluedroid_init() != ESP_OK) {
ESP_LOGE(TAG,"%s initialize bluedroid failed\n", __func__);
return;
}
if (esp_bluedroid_enable() != ESP_OK) {
ESP_LOGE(TAG,"%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);
}
void hal_bluetooth_stop(void) {
/* this still does not work, can't figure out how to stop properly this BT stack */
bt_app_task_shut_down();
ESP_LOGI(TAG, "bt_app_task shutdown successfully");
if (esp_bluedroid_disable() != ESP_OK) return;
ESP_LOGI(TAG, "esp_bluedroid_disable called successfully");
if (esp_bluedroid_deinit() != ESP_OK) return;
ESP_LOGI(TAG, "esp_bluedroid_deinit called successfully");
if (esp_bt_controller_disable() != ESP_OK) return;
ESP_LOGI(TAG, "esp_bt_controller_disable called successfully");
if (esp_bt_controller_deinit() != ESP_OK) return;
ESP_LOGI(TAG, "bt stopped successfully");
}
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 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)
{
ESP_LOGI(TAG,"Discovery completed. Ready to start connecting to %s. ",s_peer_bdname);
s_a2d_state = APP_AV_STATE_UNCONNECTED;
}
else
{
// not discovered, continue to discover
ESP_LOGI(TAG,"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) {
ESP_LOGI(TAG,"Discovery started.");
}
else
{
ESP_LOGD(TAG,"This shouldn't happen. Discovery has only 2 states (for now).");
}
break;
}
case ESP_BT_GAP_RMT_SRVCS_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_BT_GAP_RMT_SRVCS_EVT));
break;
case ESP_BT_GAP_RMT_SRVC_REC_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_BT_GAP_RMT_SRVC_REC_EVT));
break;
case ESP_BT_GAP_AUTH_CMPL_EVT: {
if (param->auth_cmpl.stat == ESP_BT_STATUS_SUCCESS) {
ESP_LOGI(TAG,"authentication success: %s", param->auth_cmpl.device_name);
//esp_log_buffer_hex(param->auth_cmpl.bda, ESP_BD_ADDR_LEN);
} else {
ESP_LOGE(TAG,"authentication failed, status:%d", param->auth_cmpl.stat);
}
break;
}
case ESP_BT_GAP_PIN_REQ_EVT: {
ESP_LOGI(TAG,"ESP_BT_GAP_PIN_REQ_EVT min_16_digit:%d", param->pin_req.min_16_digit);
if (param->pin_req.min_16_digit) {
ESP_LOGI(TAG,"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 {
ESP_LOGI(TAG,"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:
ESP_LOGI(TAG,"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:
ESP_LOGI(TAG,"ESP_BT_GAP_KEY_NOTIF_EVT passkey:%d", param->key_notif.passkey);
break;
ESP_LOGI(TAG,"ESP_BT_GAP_KEY_REQ_EVT Please enter passkey!");
break;
#endif
default: {
ESP_LOGI(TAG,"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)
{
switch (s_a2d_state) {
case APP_AV_STATE_DISCOVERING:
ESP_LOGV(TAG,"state %s, evt 0x%x, output state: %s", APP_AV_STATE_DESC[s_a2d_state], event, output_state_str());
break;
case APP_AV_STATE_DISCOVERED:
ESP_LOGV(TAG,"state %s, evt 0x%x, output state: %s", APP_AV_STATE_DESC[s_a2d_state], event, output_state_str());
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:
ESP_LOGE(TAG,"%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;
}
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;
if(s_a2d_state != APP_AV_STATE_DISCOVERING)
{
// Ignore messages that might have been queued already
// when we've discovered the target device.
return;
}
memset(s_peer_bdname, 0x00,sizeof(s_peer_bdname));
ESP_LOGI(TAG,"\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);
ESP_LOGI(TAG,"-- Class of Device: 0x%x", cod);
break;
case ESP_BT_GAP_DEV_PROP_RSSI:
rssi = *(int8_t *)(p->val);
ESP_LOGI(TAG,"-- RSSI: %d", rssi);
break;
case ESP_BT_GAP_DEV_PROP_EIR:
eir = (uint8_t *)(p->val);
ESP_LOGI(TAG,"-- EIR: %u", *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';
ESP_LOGI(TAG,"-- 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 */
ESP_LOGI(TAG,"--Invalid class of device. Skipping.\n");
return;
}
else if (!(esp_bt_gap_get_cod_srvc(cod) & ESP_BT_COD_SRVC_RENDERING))
{
ESP_LOGI(TAG,"--Not a rendering device. Skipping.\n");
return;
}
/* search for device named "ESP_SPEAKER" in its extended inqury response */
if (eir) {
ESP_LOGI(TAG,"--Getting details from eir.\n");
get_name_from_eir(eir, s_peer_bdname, NULL);
ESP_LOGI(TAG,"--Device name is %s\n",s_peer_bdname);
}
if (strcmp((char *)s_peer_bdname, squeezelite_conf.sink_name) == 0) {
ESP_LOGI(TAG,"Found a target device! address %s, name %s", bda_str, s_peer_bdname);
ESP_LOGI(TAG,"=======================\n");
if(esp_bt_gap_cancel_discovery()!=ESP_ERR_INVALID_STATE)
{
ESP_LOGI(TAG,"Cancel device discovery ...");
memcpy(s_peer_bda, param->disc_res.bda, ESP_BD_ADDR_LEN);
s_a2d_state = APP_AV_STATE_DISCOVERED;
}
else
{
ESP_LOGE(TAG,"Cancel device discovery failed...");
}
}
else
{
ESP_LOGI(TAG,"Not the device we are looking for (%s). Continuing scan", squeezelite_conf.sink_name);
}
}
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param)
{
switch (event) {
case BT_APP_EVT_STACK_UP: {
ESP_LOGI(TAG,"BT Stack going up.");
/* set up device name */
char *dev_name = CONFIG_A2DP_DEV_NAME;
esp_bt_dev_set_device_name(dev_name);
ESP_LOGI(TAG,"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(&output_bt_data);
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 */
ESP_LOGI(TAG,"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:
ESP_LOGE(TAG,"%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_stopped())
{
ESP_LOGI(TAG,"Output state is %s, Checking if A2DP is ready.", output_state_str());
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
) {
ESP_LOGI(TAG,"a2dp media ready, starting 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) {
ESP_LOGI(TAG,"a2dp media started successfully.");
s_media_state = APP_AV_MEDIA_STATE_STARTED;
} else {
// not started succesfully, transfer to idle state
ESP_LOGI(TAG,"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_stopped()) {
ESP_LOGI(TAG,"Output state is %s. Stopping a2dp media ...", output_state_str());
s_media_state = APP_AV_MEDIA_STATE_STOPPING;
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
} else {
output_bt_tick();
}
}
break;
}
case APP_AV_MEDIA_STATE_STOPPING: {
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(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) {
ESP_LOGI(TAG,"a2dp media stopped successfully...");
s_media_state = APP_AV_MEDIA_STATE_IDLE;
} else {
ESP_LOGI(TAG,"a2dp media stopping...");
esp_a2d_media_ctrl(ESP_A2D_MEDIA_CTRL_STOP);
}
}
break;
}
case APP_AV_MEDIA_STATE_WAIT_DISCONNECT:{
esp_a2d_source_disconnect(s_peer_bda);
s_a2d_state = APP_AV_STATE_DISCONNECTING;
ESP_LOGI(TAG,"a2dp disconnecting...");
}
}
}
static void bt_app_av_state_unconnected(uint16_t event, void *param)
{
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(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:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_STATE_EVT));
break;
case ESP_A2D_AUDIO_CFG_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_CFG_EVT));
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_MEDIA_CTRL_ACK_EVT));
break;
case BT_APP_HEART_BEAT_EVT: {
switch (esp_bluedroid_get_status()) {
case ESP_BLUEDROID_STATUS_UNINITIALIZED:
ESP_LOGV(TAG,"BlueDroid Status is ESP_BLUEDROID_STATUS_UNINITIALIZED.");
break;
case ESP_BLUEDROID_STATUS_INITIALIZED:
ESP_LOGV(TAG,"BlueDroid Status is ESP_BLUEDROID_STATUS_INITIALIZED.");
break;
case ESP_BLUEDROID_STATUS_ENABLED:
ESP_LOGV(TAG,"BlueDroid Status is ESP_BLUEDROID_STATUS_ENABLED.");
break;
default:
break;
}
for(uint8_t l=0;art_a2dp_connecting[l][0]!='\0';l++){
ESP_LOGI(TAG,"%s",art_a2dp_connecting[l]);
}
ESP_LOGI(TAG,"Device: %s", s_peer_bdname);
if(esp_a2d_source_connect(s_peer_bda)==ESP_OK) {
A2DP_TIMER_INIT;
s_a2d_state = APP_AV_STATE_CONNECTING;
}
else {
// there was an issue connecting... continue to discover
ESP_LOGE(TAG,"Attempt at connecting failed, restart at discover...");
esp_bt_gap_start_discovery(ESP_BT_INQ_MODE_GENERAL_INQUIRY, 10, 0);
}
break;
}
default:
ESP_LOGE(TAG,"%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;
ESP_LOGD(TAG,"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);
ESP_LOGD(TAG,"Done setting scan mode. App state is now CONNECTED and media state IDLE.");
for(uint8_t l=0;art_a2dp_connected[l][0]!='\0';l++){
ESP_LOGI(TAG,"%s",art_a2dp_connected[l]);
}
} 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:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_STATE_EVT));
break;
case ESP_A2D_AUDIO_CFG_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_CFG_EVT));
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(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;
ESP_LOGW(TAG,"A2DP Connect time out! Setting state to Unconnected. ");
}
ESP_LOGV(TAG,"BT_APP_HEART_BEAT_EVT");
break;
default:
ESP_LOGE(TAG,"%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) {
ESP_LOGI(TAG,"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: {
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(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
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_CFG_EVT));
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:{
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_MEDIA_CTRL_ACK_EVT));
bt_app_av_media_proc(event, param);
break;
}
case BT_APP_HEART_BEAT_EVT: {
ESP_LOGV(TAG,QUOTE(BT_APP_HEART_BEAT_EVT));
bt_app_av_media_proc(event, param);
break;
}
default:
ESP_LOGE(TAG,"%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: {
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_CONNECTION_STATE_EVT));
a2d = (esp_a2d_cb_param_t *)(param);
if (a2d->conn_stat.state == ESP_A2D_CONNECTION_STATE_DISCONNECTED) {
ESP_LOGI(TAG,"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:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_STATE_EVT));
break;
case ESP_A2D_AUDIO_CFG_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_AUDIO_CFG_EVT));
break;
case ESP_A2D_MEDIA_CTRL_ACK_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(ESP_A2D_MEDIA_CTRL_ACK_EVT));
break;
case BT_APP_HEART_BEAT_EVT:
ESP_LOG_DEBUG_EVENT(TAG,QUOTE(BT_APP_HEART_BEAT_EVT));
break;
default:
ESP_LOGE(TAG,"%s unhandled evt %d", __func__, event);
break;
}
}