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squeezelite-esp32/components/driver_bt/bt_app_source.c
Sebastien 3870b86a31 JTAG debugging script work now. - release 
under the build directory, a number of new files will be written with
prefixes like flash_dbg_* and dbg_*. These can be used to debug using
jtag.  the flash_dbg* files will flash the binaries to the dbg target
and, if necessary, set the offset for debugging (e.g. when running
squeezelite, the debugger needs to know that it's running in an offset
that's not the same as recovery). These files can be used in a command
like : xtensa-esp32-elf-gdb.exe --command=build/flash_dbg_squeezelite
2020-03-15 10:46:40 -04:00

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#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include "bt_app_core.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 "platform_config.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;
} 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)
{
squeezelite_conf.sink_name = config_alloc_get_default(NVS_TYPE_STR, "a2dp_sink_name", CONFIG_A2DP_SINK_NAME, 0);
if(squeezelite_conf.sink_name == NULL){
ESP_LOGW(TAG,"Unable to retrieve the a2dp sink name from nvs");
squeezelite_conf.sink_name = strdup(CONFIG_A2DP_SINK_NAME);
}
} else {
squeezelite_conf.sink_name=strdup(squeezelite_args.sink_name->sval[0]);
}
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 * a2dp_dev_name = config_alloc_get_default(NVS_TYPE_STR, "a2dp_dev_name", CONFIG_A2DP_DEV_NAME, 0);
if(a2dp_dev_name == NULL){
ESP_LOGW(TAG,"Unable to retrieve the a2dp device name from nvs");
esp_bt_dev_set_device_name(CONFIG_A2DP_DEV_NAME);
}
else {
esp_bt_dev_set_device_name(a2dp_dev_name);
free(a2dp_dev_name);
}
ESP_LOGI(TAG,"Preparing to connect");
/* 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;
}
}
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