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Merge branch 'feature/btdm_add_bt_ble_coex_demo' into 'master'

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Component/bt: add a2dp_gatts_coex demo

See merge request idf/esp-idf!1945
This commit is contained in:
Jiang Jiang Jian 2018-05-25 19:57:45 +08:00
parent 7b96e70755 97a4332ed9
commit 5b88d90a6c
9 changed files with 1182 additions and 0 deletions
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7
examples/bluetooth/a2dp_gatts_coex/README.md Executable file
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ESP-IDF A2DP-GATTS_COEX demo
======================
This demo showcases APIs to create a GATT service and A2DP profile and demonstrates BLE and classic Bluetooth coexistence.
The BLE GATT SERVER part of demo creates a GATT service and then starts advertising, waiting to be connected by a GATT client. After the program is started, the GATT client can discover a device named "ESP_COEX_BLE_DEMO". Once a connection is established, GATT client can read or write data to the device. Or GATT client can receive notification or indication data.
The classic bluetooth A2DP part of the demo implements Advanced Audio Distribution Profile to receive an audio stream. After the program is started, other bluetooth devices such as smart phones can discover a device named "ESP_COEX_A2DP_DEMO". Once a connection is established, audio data can be transmitted. This will be visible in the application log including a count of audio data packets.

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examples/bluetooth/a2dp_gatts_coex/main/Kconfig.projbuild Normal file
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menu "A2DP Example Configuration"
choice A2DP_SINK_OUTPUT
prompt "A2DP Sink Output"
default A2DP_SINK_OUTPUT_EXTERNAL_I2S
help
Select to use Internal DAC or external I2S driver
config A2DP_SINK_OUTPUT_INTERNAL_DAC
bool "Internal DAC"
help
Select this to use Internal DAC sink output
config A2DP_SINK_OUTPUT_EXTERNAL_I2S
bool "External I2S Codec"
help
Select this to use External I2S sink output
endchoice
config I2S_LRCK_PIN
int "I2S LRCK (WS) GPIO"
default 22
depends on A2DP_SINK_OUTPUT_EXTERNAL_I2S
help
GPIO number to use for I2S LRCK(WS) Driver.
config I2S_BCK_PIN
int "I2S BCK GPIO"
default 26
depends on A2DP_SINK_OUTPUT_EXTERNAL_I2S
help
GPIO number to use for I2S BCK Driver.
config I2S_DATA_PIN
int "I2S DATA GPIO"
default 25
depends on A2DP_SINK_OUTPUT_EXTERNAL_I2S
help
GPIO number to use for I2S Data Driver.
endmenu

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examples/bluetooth/a2dp_gatts_coex/main/bt_app_av.c Normal file
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/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdint.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include "esp_log.h"
#include "bt_app_core.h"
#include "bt_app_av.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 "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/i2s.h"
/* a2dp event handler */
static void bt_av_hdl_a2d_evt(uint16_t event, void *p_param);
/* avrc event handler */
static void bt_av_hdl_avrc_evt(uint16_t event, void *p_param);
static uint32_t m_pkt_cnt = 0;
static esp_a2d_audio_state_t m_audio_state = ESP_A2D_AUDIO_STATE_STOPPED;
static const char *m_a2d_conn_state_str[] = {"Disconnected", "Connecting", "Connected", "Disconnecting"};
static const char *m_a2d_audio_state_str[] = {"Suspended", "Stopped", "Started"};
/* callback for A2DP sink */
void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param)
{
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT:
case ESP_A2D_AUDIO_STATE_EVT:
case ESP_A2D_AUDIO_CFG_EVT: {
bt_app_work_dispatch(bt_av_hdl_a2d_evt, event, param, sizeof(esp_a2d_cb_param_t), NULL);
break;
}
default:
ESP_LOGE(BT_AV_TAG, "Invalid A2DP event: %d", event);
break;
}
}
void bt_app_a2d_data_cb(const uint8_t *data, uint32_t len)
{
i2s_write_bytes(0, (const char *)data, len, portMAX_DELAY);
if (++m_pkt_cnt % 100 == 0) {
ESP_LOGI(BT_AV_TAG, "Audio packet count %u", m_pkt_cnt);
}
}
void bt_app_alloc_meta_buffer(esp_avrc_ct_cb_param_t *param)
{
esp_avrc_ct_cb_param_t *rc = (esp_avrc_ct_cb_param_t *)(param);
uint8_t *attr_text = (uint8_t *) malloc (rc->meta_rsp.attr_length + 1);
if(!attr_text) {
ESP_LOGI(BT_AV_TAG, "malloc failed ");
return;
}
memcpy(attr_text, rc->meta_rsp.attr_text, rc->meta_rsp.attr_length);
attr_text[rc->meta_rsp.attr_length] = 0;
rc->meta_rsp.attr_text = attr_text;
}
void bt_app_rc_ct_cb(esp_avrc_ct_cb_event_t event, esp_avrc_ct_cb_param_t *param)
{
switch (event) {
case ESP_AVRC_CT_METADATA_RSP_EVT:
bt_app_alloc_meta_buffer(param);
case ESP_AVRC_CT_CONNECTION_STATE_EVT:
case ESP_AVRC_CT_PASSTHROUGH_RSP_EVT:
case ESP_AVRC_CT_CHANGE_NOTIFY_EVT:
case ESP_AVRC_CT_REMOTE_FEATURES_EVT: {
bt_app_work_dispatch(bt_av_hdl_avrc_evt, event, param, sizeof(esp_avrc_ct_cb_param_t), NULL);
break;
}
default:
ESP_LOGE(BT_AV_TAG, "Invalid AVRC event: %d", event);
break;
}
}
static void bt_av_hdl_a2d_evt(uint16_t event, void *p_param)
{
ESP_LOGD(BT_AV_TAG, "%s evt %d", __func__, event);
esp_a2d_cb_param_t *a2d = NULL;
switch (event) {
case ESP_A2D_CONNECTION_STATE_EVT: {
a2d = (esp_a2d_cb_param_t *)(p_param);
uint8_t *bda = a2d->conn_stat.remote_bda;
ESP_LOGI(BT_AV_TAG, "A2DP connection state: %s, [%02x:%02x:%02x:%02x:%02x:%02x]",
m_a2d_conn_state_str[a2d->conn_stat.state], bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
break;
}
case ESP_A2D_AUDIO_STATE_EVT: {
a2d = (esp_a2d_cb_param_t *)(p_param);
ESP_LOGI(BT_AV_TAG, "A2DP audio state: %s", m_a2d_audio_state_str[a2d->audio_stat.state]);
m_audio_state = a2d->audio_stat.state;
if (ESP_A2D_AUDIO_STATE_STARTED == a2d->audio_stat.state) {
m_pkt_cnt = 0;
}
break;
}
case ESP_A2D_AUDIO_CFG_EVT: {
a2d = (esp_a2d_cb_param_t *)(p_param);
ESP_LOGI(BT_AV_TAG, "A2DP audio stream configuration, codec type %d", a2d->audio_cfg.mcc.type);
// for now only SBC stream is supported
if (a2d->audio_cfg.mcc.type == ESP_A2D_MCT_SBC) {
int sample_rate = 16000;
char oct0 = a2d->audio_cfg.mcc.cie.sbc[0];
if (oct0 & (0x01 << 6)) {
sample_rate = 32000;
} else if (oct0 & (0x01 << 5)) {
sample_rate = 44100;
} else if (oct0 & (0x01 << 4)) {
sample_rate = 48000;
}
i2s_set_clk(0, sample_rate, 16, 2);
ESP_LOGI(BT_AV_TAG, "Configure audio player 0x%x-0x%x-0x%x-0x%x",
a2d->audio_cfg.mcc.cie.sbc[0],
a2d->audio_cfg.mcc.cie.sbc[1],
a2d->audio_cfg.mcc.cie.sbc[2],
a2d->audio_cfg.mcc.cie.sbc[3]);
ESP_LOGI(BT_AV_TAG, "Audio player configured, sample rate=%d", sample_rate);
}
break;
}
default:
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
break;
}
}
static void bt_av_new_track()
{
//Register notifications and request metadata
esp_avrc_ct_send_metadata_cmd(0, ESP_AVRC_MD_ATTR_TITLE | ESP_AVRC_MD_ATTR_ARTIST | ESP_AVRC_MD_ATTR_ALBUM | ESP_AVRC_MD_ATTR_GENRE);
esp_avrc_ct_send_register_notification_cmd(1, ESP_AVRC_RN_TRACK_CHANGE, 0);
}
void bt_av_notify_evt_handler(uint8_t event_id, uint32_t event_parameter)
{
switch (event_id) {
case ESP_AVRC_RN_TRACK_CHANGE:
bt_av_new_track();
break;
}
}
static void bt_av_hdl_avrc_evt(uint16_t event, void *p_param)
{
ESP_LOGD(BT_AV_TAG, "%s evt %d", __func__, event);
esp_avrc_ct_cb_param_t *rc = (esp_avrc_ct_cb_param_t *)(p_param);
switch (event) {
case ESP_AVRC_CT_CONNECTION_STATE_EVT: {
uint8_t *bda = rc->conn_stat.remote_bda;
ESP_LOGI(BT_AV_TAG, "AVRC conn_state evt: state %d, [%02x:%02x:%02x:%02x:%02x:%02x]",
rc->conn_stat.connected, bda[0], bda[1], bda[2], bda[3], bda[4], bda[5]);
if (rc->conn_stat.connected) {
bt_av_new_track();
}
break;
}
case ESP_AVRC_CT_PASSTHROUGH_RSP_EVT: {
ESP_LOGI(BT_AV_TAG, "AVRC passthrough rsp: key_code 0x%x, key_state %d", rc->psth_rsp.key_code, rc->psth_rsp.key_state);
break;
}
case ESP_AVRC_CT_METADATA_RSP_EVT: {
ESP_LOGI(BT_AV_TAG, "AVRC metadata rsp: attribute id 0x%x, %s", rc->meta_rsp.attr_id, rc->meta_rsp.attr_text);
free(rc->meta_rsp.attr_text);
break;
}
case ESP_AVRC_CT_CHANGE_NOTIFY_EVT: {
ESP_LOGI(BT_AV_TAG, "AVRC event notification: %d, param: %d", rc->change_ntf.event_id, rc->change_ntf.event_parameter);
bt_av_notify_evt_handler(rc->change_ntf.event_id, rc->change_ntf.event_parameter);
break;
}
case ESP_AVRC_CT_REMOTE_FEATURES_EVT: {
ESP_LOGI(BT_AV_TAG, "AVRC remote features 0x%x", rc->rmt_feats.feat_mask);
break;
}
default:
ESP_LOGE(BT_AV_TAG, "%s unhandled evt %d", __func__, event);
break;
}
}

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examples/bluetooth/a2dp_gatts_coex/main/bt_app_av.h Normal file
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/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#ifndef __BT_APP_AV_H__
#define __BT_APP_AV_H__
#include <stdint.h>
#include "esp_a2dp_api.h"
#include "esp_avrc_api.h"
#define BT_AV_TAG "BT_AV"
/**
* @brief callback function for A2DP sink
*/
void bt_app_a2d_cb(esp_a2d_cb_event_t event, esp_a2d_cb_param_t *param);
/**
* @brief callback function for A2DP sink audio data stream
*/
void bt_app_a2d_data_cb(const uint8_t *data, uint32_t len);
/**
* @brief callback function for AVRCP controller
*/
void bt_app_rc_ct_cb(esp_avrc_ct_cb_event_t event, esp_avrc_ct_cb_param_t *param);
#endif /* __BT_APP_AV_H__*/

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examples/bluetooth/a2dp_gatts_coex/main/bt_app_core.c Normal file
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/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include "freertos/xtensa_api.h"
#include "freertos/FreeRTOSConfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "bt_app_core.h"
static void bt_app_task_handler(void *arg);
static bool bt_app_send_msg(bt_app_msg_t *msg);
static void bt_app_work_dispatched(bt_app_msg_t *msg);
static xQueueHandle bt_app_task_queue = NULL;
static xTaskHandle bt_app_task_handle = NULL;
bool bt_app_work_dispatch(bt_app_cb_t p_cback, uint16_t event, void *p_params, int param_len, bt_app_copy_cb_t p_copy_cback)
{
ESP_LOGD(BT_APP_CORE_TAG, "%s event 0x%x, param len %d", __func__, event, param_len);
bt_app_msg_t msg = { };
msg.sig = BT_APP_SIG_WORK_DISPATCH;
msg.event = event;
msg.cb = p_cback;
if (param_len == 0) {
return bt_app_send_msg(&msg);
} else if (p_params && param_len > 0) {
if ((msg.param = malloc(param_len)) != NULL) {
memcpy(msg.param, p_params, param_len);
/* check if caller has provided a copy callback to do the deep copy */
if (p_copy_cback) {
p_copy_cback(&msg, msg.param, p_params);
}
return bt_app_send_msg(&msg);
}
}
return false;
}
static bool bt_app_send_msg(bt_app_msg_t *msg)
{
if (msg == NULL) {
return false;
}
if (xQueueSend(bt_app_task_queue, msg, 10 / portTICK_RATE_MS) != pdTRUE) {
ESP_LOGE(BT_APP_CORE_TAG, "%s xQueue send failed", __func__);
return false;
}
return true;
}
static void bt_app_work_dispatched(bt_app_msg_t *msg)
{
if (msg->cb) {
msg->cb(msg->event, msg->param);
}
}
static void bt_app_task_handler(void *arg)
{
bt_app_msg_t msg;
for (;;) {
if (pdTRUE == xQueueReceive(bt_app_task_queue, &msg, (portTickType)portMAX_DELAY)) {
ESP_LOGD(BT_APP_CORE_TAG, "%s, sig 0x%x, 0x%x", __func__, msg.sig, msg.event);
switch (msg.sig) {
case BT_APP_SIG_WORK_DISPATCH:
bt_app_work_dispatched(&msg);
break;
default:
ESP_LOGW(BT_APP_CORE_TAG, "%s, unhandled sig: 0x%x", __func__, msg.sig);
break;
} // switch (msg.sig)
if (msg.param) {
free(msg.param);
}
}
}
}
void bt_app_task_start_up(void)
{
bt_app_task_queue = xQueueCreate(10, sizeof(bt_app_msg_t));
xTaskCreate(bt_app_task_handler, "BtAppT", 2048, NULL, configMAX_PRIORITIES - 3, bt_app_task_handle);
return;
}
void bt_app_task_shut_down(void)
{
if (bt_app_task_handle) {
vTaskDelete(bt_app_task_handle);
bt_app_task_handle = NULL;
}
if (bt_app_task_queue) {
vQueueDelete(bt_app_task_queue);
bt_app_task_queue = NULL;
}
}

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examples/bluetooth/a2dp_gatts_coex/main/bt_app_core.h Normal file
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/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#ifndef __BT_APP_CORE_H__
#define __BT_APP_CORE_H__
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#define BT_APP_CORE_TAG "BT_APP_CORE"
#define BT_APP_SIG_WORK_DISPATCH (0x01)
/**
* @brief handler for the dispatched work
*/
typedef void (* bt_app_cb_t) (uint16_t event, void *param);
/* message to be sent */
typedef struct {
uint16_t sig; /*!< signal to bt_app_task */
uint16_t event; /*!< message event id */
bt_app_cb_t cb; /*!< context switch callback */
void *param; /*!< parameter area needs to be last */
} bt_app_msg_t;
/**
* @brief parameter deep-copy function to be customized
*/
typedef void (* bt_app_copy_cb_t) (bt_app_msg_t *msg, void *p_dest, void *p_src);
/**
* @brief work dispatcher for the application task
*/
bool bt_app_work_dispatch(bt_app_cb_t p_cback, uint16_t event, void *p_params, int param_len, bt_app_copy_cb_t p_copy_cback);
void bt_app_task_start_up(void);
void bt_app_task_shut_down(void);
#endif /* __BT_APP_CORE_H__ */

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examples/bluetooth/a2dp_gatts_coex/main/component.mk Executable file
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#
# "main" pseudo-component makefile.
#
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

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/*
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
/****************************************************************************
* The demo shows BLE and classic Bluetooth coexistence. You can use BLE gatt server and classic bluetooth A2DP together.
* The BLE GATT SERVER part of demo creates GATT a service and then starts advertising, waiting to be connected by a GATT client.
* After the program is started, the GATT client can discover a device named "ESP_COEX_BLE_DEMO". Once a connection is established,
* GATT client can reaad or write data to the device. Or GATT client receive notification or indication data.
* Attention: IF you test the demo with iphone, BLE gatt server adv name will change to "ESP_COEX_A2DP_DEMO" afte you connect it.
* The classic bluetooth A2DP part of the demo of API implementing Advanced Audio Distribution Profile to receive an audio stream.
* After the program is started, other bluetooth devices such as smart phones can discover a device named "ESP_COEX_A2DP_DEMO".
* Once a connection is established, audio data can be transmitted. This will be visible in the application log including a count
* of audio data packets.
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.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 "bt_app_av.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 "driver/i2s.h"
#include "esp_gap_ble_api.h"
#include "esp_gatts_api.h"
#include "esp_bt_defs.h"
#include "esp_gatt_common_api.h"
#define BT_BLE_COEX_TAG "BT_BLE_COEX"
#define BT_DEVICE_NAME "ESP_COEX_A2DP_DEMO"
#define BLE_ADV_NAME "ESP_COEX_BLE_DEMO"
#define GATTS_SERVICE_UUID_A 0x00FF
#define GATTS_CHAR_UUID_A 0xFF01
#define GATTS_DESCR_UUID_A 0x3333
#define GATTS_NUM_HANDLE_A 4
#define GATTS_SERVICE_UUID_B 0x00EE
#define GATTS_CHAR_UUID_B 0xEE01
#define GATTS_DESCR_UUID_B 0x2222
#define GATTS_NUM_HANDLE_B 4
#define GATTS_DEMO_CHAR_VAL_LEN_MAX 0x40
#define PREPARE_BUF_MAX_SIZE 1024
#define PROFILE_NUM 2
#define PROFILE_A_APP_ID 0
#define PROFILE_B_APP_ID 1
typedef struct {
uint8_t *prepare_buf;
int prepare_len;
} prepare_type_env_t;
static prepare_type_env_t a_prepare_write_env;
static prepare_type_env_t b_prepare_write_env;
//Declare the static function
static void gatts_profile_a_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
static void gatts_profile_b_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
void example_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param);
void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param);
/* event for handler "bt_av_hdl_stack_up */
enum {
BT_APP_EVT_STACK_UP = 0,
};
static uint8_t ble_char_value_str[] = {0x11, 0x22, 0x33};
esp_gatt_char_prop_t a_property = 0;
esp_gatt_char_prop_t b_property = 0;
esp_attr_value_t gatts_initial_char_val = {
.attr_max_len = GATTS_DEMO_CHAR_VAL_LEN_MAX,
.attr_len = sizeof(ble_char_value_str),
.attr_value = ble_char_value_str,
};
static esp_ble_adv_params_t adv_params = {
.adv_int_min = 0x060,
.adv_int_max = 0x060,
.adv_type = ADV_TYPE_IND,
.own_addr_type = BLE_ADDR_TYPE_RANDOM,
.channel_map = ADV_CHNL_ALL,
.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
};
struct gatts_profile_inst {
esp_gatts_cb_t gatts_cb;
uint16_t gatts_if;
uint16_t app_id;
uint16_t conn_id;
uint16_t service_handle;
esp_gatt_srvc_id_t service_id;
uint16_t char_handle;
esp_bt_uuid_t char_uuid;
esp_gatt_perm_t perm;
esp_gatt_char_prop_t property;
uint16_t descr_handle;
esp_bt_uuid_t descr_uuid;
};
/* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
static struct gatts_profile_inst gl_profile_tab[PROFILE_NUM] = {
[PROFILE_A_APP_ID] = {
.gatts_cb = gatts_profile_a_event_handler,
.gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
},
[PROFILE_B_APP_ID] = {
.gatts_cb = gatts_profile_b_event_handler,/* This demo does not implement, similar as profile A */
.gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
},
};
static void ble_init_adv_data(const char *name)
{
int len = strlen(name);
uint8_t raw_adv_data[len+5];
//flag
raw_adv_data[0] = 2;
raw_adv_data[1] = ESP_BT_EIR_TYPE_FLAGS;
raw_adv_data[2] = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT);
//adv name
raw_adv_data[3] = len + 1;
raw_adv_data[4] = ESP_BLE_AD_TYPE_NAME_CMPL;
for (int i = 0;i < len;i++)
{
raw_adv_data[i+5] = *(name++);
}
//The length of adv data must be less than 31 bytes
esp_err_t raw_adv_ret = esp_ble_gap_config_adv_data_raw(raw_adv_data, sizeof(raw_adv_data));
if (raw_adv_ret){
ESP_LOGE(BT_BLE_COEX_TAG, "config raw adv data failed, error code = 0x%x ", raw_adv_ret);
}
esp_err_t raw_scan_ret = esp_ble_gap_config_scan_rsp_data_raw(raw_adv_data, sizeof(raw_adv_data));
if (raw_scan_ret){
ESP_LOGE(BT_BLE_COEX_TAG, "config raw scan rsp data failed, error code = 0x%x", raw_scan_ret);
}
}
static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
switch (event) {
case ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT:
//esp_ble_gap_start_advertising(&adv_params);
break;
case ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT:
esp_ble_gap_start_advertising(&adv_params);
break;
case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
//advertising start complete event to indicate advertising start successfully or failed
if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(BT_BLE_COEX_TAG, "Advertising start failed\n");
}else {
ESP_LOGI(BT_BLE_COEX_TAG, "Start adv successfully\n");
}
break;
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) {
ESP_LOGE(BT_BLE_COEX_TAG, "Advertising stop failed\n");
}
else {
ESP_LOGI(BT_BLE_COEX_TAG, "Stop adv successfully\n");
}
break;
case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "update connetion params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
param->update_conn_params.status,
param->update_conn_params.min_int,
param->update_conn_params.max_int,
param->update_conn_params.conn_int,
param->update_conn_params.latency,
param->update_conn_params.timeout);
break;
default:
break;
}
}
void example_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
esp_gatt_status_t status = ESP_GATT_OK;
if (param->write.need_rsp){
if (param->write.is_prep){
if (prepare_write_env->prepare_buf == NULL) {
prepare_write_env->prepare_buf = (uint8_t *)malloc(PREPARE_BUF_MAX_SIZE*sizeof(uint8_t));
prepare_write_env->prepare_len = 0;
if (prepare_write_env->prepare_buf == NULL) {
ESP_LOGE(BT_BLE_COEX_TAG, "Gatt_server prep no mem\n");
status = ESP_GATT_NO_RESOURCES;
}
} else {
if(param->write.offset > PREPARE_BUF_MAX_SIZE) {
status = ESP_GATT_INVALID_OFFSET;
} else if ((param->write.offset + param->write.len) > PREPARE_BUF_MAX_SIZE) {
status = ESP_GATT_INVALID_ATTR_LEN;
}
}
esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
gatt_rsp->attr_value.len = param->write.len;
gatt_rsp->attr_value.handle = param->write.handle;
gatt_rsp->attr_value.offset = param->write.offset;
gatt_rsp->attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
memcpy(gatt_rsp->attr_value.value, param->write.value, param->write.len);
esp_err_t response_err = esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, gatt_rsp);
if (response_err != ESP_OK){
ESP_LOGE(BT_BLE_COEX_TAG, "Send response error\n");
}
free(gatt_rsp);
if (status != ESP_GATT_OK){
return;
}
memcpy(prepare_write_env->prepare_buf + param->write.offset,
param->write.value,
param->write.len);
prepare_write_env->prepare_len += param->write.len;
}else{
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, NULL);
}
}
}
void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC){
esp_log_buffer_hex(BT_BLE_COEX_TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
}else{
ESP_LOGI(BT_BLE_COEX_TAG,"ESP_GATT_PREP_WRITE_CANCEL");
}
if (prepare_write_env->prepare_buf) {
free(prepare_write_env->prepare_buf);
prepare_write_env->prepare_buf = NULL;
}
prepare_write_env->prepare_len = 0;
}
static void gatts_profile_a_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param) {
switch (event) {
case ESP_GATTS_REG_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "REGISTER_APP_EVT, status %d, app_id %d\n", param->reg.status, param->reg.app_id);
esp_ble_gap_config_local_privacy(true);
gl_profile_tab[PROFILE_A_APP_ID].service_id.is_primary = true;
gl_profile_tab[PROFILE_A_APP_ID].service_id.id.inst_id = 0x00;
gl_profile_tab[PROFILE_A_APP_ID].service_id.id.uuid.len = ESP_UUID_LEN_16;
gl_profile_tab[PROFILE_A_APP_ID].service_id.id.uuid.uuid.uuid16 = GATTS_SERVICE_UUID_A;
//init BLE adv data and scan response data
ble_init_adv_data(BLE_ADV_NAME);
esp_ble_gatts_create_service(gatts_if, &gl_profile_tab[PROFILE_A_APP_ID].service_id, GATTS_NUM_HANDLE_A);
break;
case ESP_GATTS_READ_EVT: {
ESP_LOGI(BT_BLE_COEX_TAG, "GATT_READ_EVT, conn_id %d, trans_id %d, handle %d\n", param->read.conn_id, param->read.trans_id, param->read.handle);
esp_gatt_rsp_t rsp;
memset(&rsp, 0, sizeof(esp_gatt_rsp_t));
rsp.attr_value.handle = param->read.handle;
rsp.attr_value.len = 4;
rsp.attr_value.value[0] = 0xde;
rsp.attr_value.value[1] = 0xed;
rsp.attr_value.value[2] = 0xbe;
rsp.attr_value.value[3] = 0xef;
esp_ble_gatts_send_response(gatts_if, param->read.conn_id, param->read.trans_id,
ESP_GATT_OK, &rsp);
break;
}
case ESP_GATTS_WRITE_EVT: {
ESP_LOGI(BT_BLE_COEX_TAG, "GATT_WRITE_EVT, conn_id %d, trans_id %d, handle %d", param->write.conn_id, param->write.trans_id, param->write.handle);
if (!param->write.is_prep){
ESP_LOGI(BT_BLE_COEX_TAG, "GATT_WRITE_EVT, value len %d, value :", param->write.len);
esp_log_buffer_hex(BT_BLE_COEX_TAG, param->write.value, param->write.len);
if (gl_profile_tab[PROFILE_A_APP_ID].descr_handle == param->write.handle && param->write.len == 2){
uint16_t descr_value = param->write.value[1]<<8 | param->write.value[0];
if (descr_value == 0x0001){
if (a_property & ESP_GATT_CHAR_PROP_BIT_NOTIFY){
ESP_LOGI(BT_BLE_COEX_TAG, "notify enable");
uint8_t notify_data[15];
for (int i = 0; i < sizeof(notify_data); ++i)
{
notify_data[i] = i%0xff;
}
//the size of notify_data[] need less than MTU size
esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_A_APP_ID].char_handle,
sizeof(notify_data), notify_data, false);
}
}else if (descr_value == 0x0002){
if (a_property & ESP_GATT_CHAR_PROP_BIT_INDICATE){
ESP_LOGI(BT_BLE_COEX_TAG, "indicate enable");
uint8_t indicate_data[15];
for (int i = 0; i < sizeof(indicate_data); ++i)
{
indicate_data[i] = i%0xff;
}
//the size of indicate_data[] need less than MTU size
esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_A_APP_ID].char_handle,
sizeof(indicate_data), indicate_data, true);
}
}
else if (descr_value == 0x0000){
ESP_LOGI(BT_BLE_COEX_TAG, "notify/indicate disable ");
}else{
ESP_LOGE(BT_BLE_COEX_TAG, "unknown descr value");
esp_log_buffer_hex(BT_BLE_COEX_TAG, param->write.value, param->write.len);
}
}
}
example_write_event_env(gatts_if, &a_prepare_write_env, param);
break;
}
case ESP_GATTS_EXEC_WRITE_EVT:
ESP_LOGI(BT_BLE_COEX_TAG,"ESP_GATTS_EXEC_WRITE_EVT");
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
example_exec_write_event_env(&a_prepare_write_env, param);
break;
case ESP_GATTS_MTU_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
break;
case ESP_GATTS_UNREG_EVT:
break;
case ESP_GATTS_CREATE_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "CREATE_SERVICE_EVT, status %d, service_handle %d\n", param->create.status, param->create.service_handle);
gl_profile_tab[PROFILE_A_APP_ID].service_handle = param->create.service_handle;
gl_profile_tab[PROFILE_A_APP_ID].char_uuid.len = ESP_UUID_LEN_16;
gl_profile_tab[PROFILE_A_APP_ID].char_uuid.uuid.uuid16 = GATTS_CHAR_UUID_A;
esp_ble_gatts_start_service(gl_profile_tab[PROFILE_A_APP_ID].service_handle);
a_property = ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
esp_err_t add_char_ret = esp_ble_gatts_add_char(gl_profile_tab[PROFILE_A_APP_ID].service_handle, &gl_profile_tab[PROFILE_A_APP_ID].char_uuid,
ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
a_property,
&gatts_initial_char_val, NULL);
if (add_char_ret){
ESP_LOGE(BT_BLE_COEX_TAG, "add char failed, error code = 0x%x",add_char_ret);
}
break;
case ESP_GATTS_ADD_INCL_SRVC_EVT:
break;
case ESP_GATTS_ADD_CHAR_EVT: {
ESP_LOGI(BT_BLE_COEX_TAG, "ADD_CHAR_EVT, status %d, attr_handle %d, service_handle %d\n",
param->add_char.status, param->add_char.attr_handle, param->add_char.service_handle);
gl_profile_tab[PROFILE_A_APP_ID].char_handle = param->add_char.attr_handle;
gl_profile_tab[PROFILE_A_APP_ID].descr_uuid.len = ESP_UUID_LEN_16;
gl_profile_tab[PROFILE_A_APP_ID].descr_uuid.uuid.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
esp_err_t add_descr_ret = esp_ble_gatts_add_char_descr(gl_profile_tab[PROFILE_A_APP_ID].service_handle, &gl_profile_tab[PROFILE_A_APP_ID].descr_uuid,
ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE, NULL, NULL);
if (add_descr_ret){
ESP_LOGE(BT_BLE_COEX_TAG, "add char descr failed, error code = 0x%x", add_descr_ret);
}
break;
}
case ESP_GATTS_ADD_CHAR_DESCR_EVT:
gl_profile_tab[PROFILE_A_APP_ID].descr_handle = param->add_char_descr.attr_handle;
ESP_LOGI(BT_BLE_COEX_TAG, "ADD_DESCR_EVT, status %d, attr_handle %d, service_handle %d\n",
param->add_char_descr.status, param->add_char_descr.attr_handle, param->add_char_descr.service_handle);
break;
case ESP_GATTS_DELETE_EVT:
break;
case ESP_GATTS_START_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "SERVICE_START_EVT, status %d, service_handle %d\n",
param->start.status, param->start.service_handle);
break;
case ESP_GATTS_STOP_EVT:
break;
case ESP_GATTS_CONNECT_EVT: {
esp_ble_conn_update_params_t conn_params = {0};
memcpy(conn_params.bda, param->connect.remote_bda, sizeof(esp_bd_addr_t));
break;
}
case ESP_GATTS_DISCONNECT_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "ESP_GATTS_DISCONNECT_EVT");
esp_ble_gap_start_advertising(&adv_params);
break;
case ESP_GATTS_CONF_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "ESP_GATTS_CONF_EVT, status %d", param->conf.status);
if (param->conf.status != ESP_GATT_OK){
esp_log_buffer_hex(BT_BLE_COEX_TAG, param->conf.value, param->conf.len);
}
break;
case ESP_GATTS_OPEN_EVT:
case ESP_GATTS_CANCEL_OPEN_EVT:
case ESP_GATTS_CLOSE_EVT:
case ESP_GATTS_LISTEN_EVT:
case ESP_GATTS_CONGEST_EVT:
default:
break;
}
}
static void gatts_profile_b_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param) {
switch (event) {
case ESP_GATTS_REG_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "REGISTER_APP_EVT, status %d, app_id %d\n", param->reg.status, param->reg.app_id);
gl_profile_tab[PROFILE_B_APP_ID].service_id.is_primary = true;
gl_profile_tab[PROFILE_B_APP_ID].service_id.id.inst_id = 0x00;
gl_profile_tab[PROFILE_B_APP_ID].service_id.id.uuid.len = ESP_UUID_LEN_16;
gl_profile_tab[PROFILE_B_APP_ID].service_id.id.uuid.uuid.uuid16 = GATTS_SERVICE_UUID_B;
esp_ble_gatts_create_service(gatts_if, &gl_profile_tab[PROFILE_B_APP_ID].service_id, GATTS_NUM_HANDLE_B);
break;
case ESP_GATTS_READ_EVT: {
ESP_LOGI(BT_BLE_COEX_TAG, "GATT_READ_EVT, conn_id %d, trans_id %d, handle %d\n", param->read.conn_id, param->read.trans_id, param->read.handle);
esp_gatt_rsp_t rsp;
memset(&rsp, 0, sizeof(esp_gatt_rsp_t));
rsp.attr_value.handle = param->read.handle;
rsp.attr_value.len = 4;
rsp.attr_value.value[0] = 0xde;
rsp.attr_value.value[1] = 0xed;
rsp.attr_value.value[2] = 0xbe;
rsp.attr_value.value[3] = 0xef;
esp_ble_gatts_send_response(gatts_if, param->read.conn_id, param->read.trans_id,
ESP_GATT_OK, &rsp);
break;
}
case ESP_GATTS_WRITE_EVT: {
ESP_LOGI(BT_BLE_COEX_TAG, "GATT_WRITE_EVT, conn_id %d, trans_id %d, handle %d\n", param->write.conn_id, param->write.trans_id, param->write.handle);
if (!param->write.is_prep){
ESP_LOGI(BT_BLE_COEX_TAG, "GATT_WRITE_EVT, value len %d, value :", param->write.len);
esp_log_buffer_hex(BT_BLE_COEX_TAG, param->write.value, param->write.len);
if (gl_profile_tab[PROFILE_B_APP_ID].descr_handle == param->write.handle && param->write.len == 2){
uint16_t descr_value= param->write.value[1]<<8 | param->write.value[0];
if (descr_value == 0x0001){
if (b_property & ESP_GATT_CHAR_PROP_BIT_NOTIFY){
ESP_LOGI(BT_BLE_COEX_TAG, "notify enable");
uint8_t notify_data[15];
for (int i = 0; i < sizeof(notify_data); ++i)
{
notify_data[i] = i%0xff;
}
//the size of notify_data[] need less than MTU size
esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_B_APP_ID].char_handle,
sizeof(notify_data), notify_data, false);
}
}else if (descr_value == 0x0002){
if (b_property & ESP_GATT_CHAR_PROP_BIT_INDICATE){
ESP_LOGI(BT_BLE_COEX_TAG, "indicate enable");
uint8_t indicate_data[15];
for (int i = 0; i < sizeof(indicate_data); ++i)
{
indicate_data[i] = i%0xff;
}
//the size of indicate_data[] need less than MTU size
esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_B_APP_ID].char_handle,
sizeof(indicate_data), indicate_data, true);
}
}
else if (descr_value == 0x0000){
ESP_LOGI(BT_BLE_COEX_TAG, "notify/indicate disable ");
}else{
ESP_LOGE(BT_BLE_COEX_TAG, "unknown value");
}
}
}
example_write_event_env(gatts_if, &b_prepare_write_env, param);
break;
}
case ESP_GATTS_EXEC_WRITE_EVT:
ESP_LOGI(BT_BLE_COEX_TAG,"ESP_GATTS_EXEC_WRITE_EVT");
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
example_exec_write_event_env(&b_prepare_write_env, param);
break;
case ESP_GATTS_MTU_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
break;
case ESP_GATTS_UNREG_EVT:
break;
case ESP_GATTS_CREATE_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "CREATE_SERVICE_EVT, status %d, service_handle %d\n", param->create.status, param->create.service_handle);
gl_profile_tab[PROFILE_B_APP_ID].service_handle = param->create.service_handle;
gl_profile_tab[PROFILE_B_APP_ID].char_uuid.len = ESP_UUID_LEN_16;
gl_profile_tab[PROFILE_B_APP_ID].char_uuid.uuid.uuid16 = GATTS_CHAR_UUID_B;
esp_ble_gatts_start_service(gl_profile_tab[PROFILE_B_APP_ID].service_handle);
b_property = ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
esp_err_t add_char_ret =esp_ble_gatts_add_char( gl_profile_tab[PROFILE_B_APP_ID].service_handle, &gl_profile_tab[PROFILE_B_APP_ID].char_uuid,
ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
b_property,
NULL, NULL);
if (add_char_ret){
ESP_LOGE(BT_BLE_COEX_TAG, "add char failed, error code = 0x%x",add_char_ret);
}
break;
case ESP_GATTS_ADD_INCL_SRVC_EVT:
break;
case ESP_GATTS_ADD_CHAR_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "ADD_CHAR_EVT, status %d, attr_handle %d, service_handle %d\n",
param->add_char.status, param->add_char.attr_handle, param->add_char.service_handle);
gl_profile_tab[PROFILE_B_APP_ID].char_handle = param->add_char.attr_handle;
gl_profile_tab[PROFILE_B_APP_ID].descr_uuid.len = ESP_UUID_LEN_16;
gl_profile_tab[PROFILE_B_APP_ID].descr_uuid.uuid.uuid16 = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
esp_ble_gatts_add_char_descr(gl_profile_tab[PROFILE_B_APP_ID].service_handle, &gl_profile_tab[PROFILE_B_APP_ID].descr_uuid,
ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
NULL, NULL);
break;
case ESP_GATTS_ADD_CHAR_DESCR_EVT:
gl_profile_tab[PROFILE_B_APP_ID].descr_handle = param->add_char_descr.attr_handle;
ESP_LOGI(BT_BLE_COEX_TAG, "ADD_DESCR_EVT, status %d, attr_handle %d, service_handle %d\n",
param->add_char_descr.status, param->add_char_descr.attr_handle, param->add_char_descr.service_handle);
break;
case ESP_GATTS_DELETE_EVT:
break;
case ESP_GATTS_START_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "SERVICE_START_EVT, status %d, service_handle %d\n",
param->start.status, param->start.service_handle);
break;
case ESP_GATTS_STOP_EVT:
break;
case ESP_GATTS_CONNECT_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "CONNECT_EVT, conn_id %d, remote %02x:%02x:%02x:%02x:%02x:%02x:",
param->connect.conn_id,
param->connect.remote_bda[0], param->connect.remote_bda[1], param->connect.remote_bda[2],
param->connect.remote_bda[3], param->connect.remote_bda[4], param->connect.remote_bda[5]);
gl_profile_tab[PROFILE_B_APP_ID].conn_id = param->connect.conn_id;
break;
case ESP_GATTS_CONF_EVT:
ESP_LOGI(BT_BLE_COEX_TAG, "ESP_GATTS_CONF_EVT status %d", param->conf.status);
if (param->conf.status != ESP_GATT_OK){
esp_log_buffer_hex(BT_BLE_COEX_TAG, param->conf.value, param->conf.len);
}
break;
case ESP_GATTS_DISCONNECT_EVT:
case ESP_GATTS_OPEN_EVT:
case ESP_GATTS_CANCEL_OPEN_EVT:
case ESP_GATTS_CLOSE_EVT:
case ESP_GATTS_LISTEN_EVT:
case ESP_GATTS_CONGEST_EVT:
default:
break;
}
}
static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
{
/* If event is register event, store the gatts_if for each profile */
if (event == ESP_GATTS_REG_EVT) {
if (param->reg.status == ESP_GATT_OK) {
gl_profile_tab[param->reg.app_id].gatts_if = gatts_if;
} else {
ESP_LOGI(BT_BLE_COEX_TAG, "Reg app failed, app_id %04x, status %d\n",
param->reg.app_id,
param->reg.status);
return;
}
}
/* If the gatts_if equal to profile A, call profile A cb handler,
* so here call each profile's callback */
do {
int idx;
for (idx = 0; idx < PROFILE_NUM; idx++) {
if (gatts_if == ESP_GATT_IF_NONE || /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
gatts_if == gl_profile_tab[idx].gatts_if) {
if (gl_profile_tab[idx].gatts_cb) {
gl_profile_tab[idx].gatts_cb(event, gatts_if, param);
}
}
}
} while (0);
}
static void ble_gatts_init(void)
{
esp_err_t ret = esp_ble_gatts_register_callback(gatts_event_handler);
if (ret){
ESP_LOGE(BT_BLE_COEX_TAG, "gatts register error, error code = 0x%x", ret);
return;
}
ret = esp_ble_gap_register_callback(gap_event_handler);
if (ret){
ESP_LOGE(BT_BLE_COEX_TAG, "gap register error, error code = 0x%x", ret);
return;
}
ret = esp_ble_gatts_app_register(PROFILE_A_APP_ID);
if (ret){
ESP_LOGE(BT_BLE_COEX_TAG, "gatts app register error, error code = 0x%x", ret);
return;
}
ret = esp_ble_gatts_app_register(PROFILE_B_APP_ID);
if (ret){
ESP_LOGE(BT_BLE_COEX_TAG, "gatts app register error, error code = 0x%x", ret);
return;
}
esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
if (local_mtu_ret){
ESP_LOGE(BT_BLE_COEX_TAG, "set local MTU failed, error code = 0x%x", local_mtu_ret);
}
}
/* handler for bluetooth stack enabled events */
static void bt_av_hdl_stack_evt(uint16_t event, void *p_param)
{
ESP_LOGD(BT_BLE_COEX_TAG, "%s evt %d", __func__, event);
switch (event) {
case BT_APP_EVT_STACK_UP: {
/* set up bt device name */
esp_bt_dev_set_device_name(BT_DEVICE_NAME);
/* initialize A2DP sink */
esp_a2d_register_callback(&bt_app_a2d_cb);
esp_a2d_sink_register_data_callback(bt_app_a2d_data_cb);
esp_a2d_sink_init();
/* initialize AVRCP controller */
esp_avrc_ct_init();
esp_avrc_ct_register_callback(bt_app_rc_ct_cb);
/* set discoverable and connectable mode, wait to be connected */
esp_bt_gap_set_scan_mode(ESP_BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE);
break;
}
default:
ESP_LOGE(BT_BLE_COEX_TAG, "%s unhandled evt %d", __func__, event);
break;
}
}
void app_main()
{
esp_err_t ret;
// Initialize NVS.
ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK( ret );
i2s_config_t i2s_config = {
#ifdef CONFIG_A2DP_SINK_OUTPUT_INTERNAL_DAC
.mode = I2S_MODE_DAC_BUILT_IN,
#else
.mode = I2S_MODE_MASTER | I2S_MODE_TX, // Only TX
#endif
.sample_rate = 44100,
.bits_per_sample = 16,
.channel_format = I2S_CHANNEL_FMT_RIGHT_LEFT, //2-channels
.communication_format = I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB,
.dma_buf_count = 6,
.dma_buf_len = 60, //
.intr_alloc_flags = ESP_INTR_FLAG_LEVEL1 //Interrupt level 1
};
i2s_driver_install(0, &i2s_config, 0, NULL);
#ifdef CONFIG_A2DP_SINK_OUTPUT_INTERNAL_DAC
i2s_set_pin(0, NULL);
#else
i2s_pin_config_t pin_config = {
.bck_io_num = CONFIG_I2S_BCK_PIN,
.ws_io_num = CONFIG_I2S_LRCK_PIN,
.data_out_num = CONFIG_I2S_DATA_PIN,
.data_in_num = -1 //Not used
};
i2s_set_pin(0, &pin_config);
#endif
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
ret = esp_bt_controller_init(&bt_cfg);
if (ret) {
ESP_LOGE(BT_BLE_COEX_TAG, "%s initialize controller failed\n", __func__);
return;
}
ret = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
if (ret) {
ESP_LOGE(BT_BLE_COEX_TAG, "%s enable controller failed\n", __func__);
return;
}
ret = esp_bluedroid_init();
if (ret) {
ESP_LOGE(BT_BLE_COEX_TAG, "%s init bluetooth failed\n", __func__);
return;
}
ret = esp_bluedroid_enable();
if (ret) {
ESP_LOGE(BT_BLE_COEX_TAG, "%s enable bluetooth 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);
//gatt server init
ble_gatts_init();
}

30
examples/bluetooth/a2dp_gatts_coex/sdkconfig.defaults Normal file
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# Override some defaults so BT stack is enabled and
# Classic BT is enabled and BT_DRAM_RELEASE is disabled
CONFIG_BT_ENABLED=y
CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE_0=y
CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE_1=
CONFIG_BTDM_CONTROLLER_PINNED_TO_CORE=0
CONFIG_BTDM_CONTROLLER_HCI_MODE_VHCI=y
CONFIG_BTDM_CONTROLLER_HCI_MODE_UART_H4=
CONFIG_BLUEDROID_ENABLED=y
CONFIG_BLUEDROID_PINNED_TO_CORE_0=y
CONFIG_BLUEDROID_PINNED_TO_CORE_1=
CONFIG_BLUEDROID_PINNED_TO_CORE=0
CONFIG_BTC_TASK_STACK_SIZE=3072
CONFIG_BLUEDROID_MEM_DEBUG=
CONFIG_CLASSIC_BT_ENABLED=y
CONFIG_A2DP_ENABLE=y
CONFIG_A2DP_SINK_ENABLE=y
CONFIG_A2DP_SRC_ENABLE=
CONFIG_A2DP_SINK_TASK_STACK_SIZE=2048
CONFIG_BT_SPP_ENABLED=
CONFIG_GATTS_ENABLE=y
CONFIG_GATTC_ENABLE=
CONFIG_BLE_SMP_ENABLE=
CONFIG_BLE_ENABLE_SRVCHG_REG=y
CONFIG_BT_STACK_NO_LOG=
CONFIG_BT_ACL_CONNECTIONS=4
CONFIG_BT_ALLOCATION_FROM_SPIRAM_FIRST=
CONFIG_BT_BLE_DYNAMIC_ENV_MEMORY=
CONFIG_SMP_ENABLE=y
CONFIG_BT_RESERVE_DRAM=0x10000