2 This example code is in the Public Domain (or CC0 licensed, at your option.)
4 Unless required by applicable law or agreed to in writing, this
5 software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
6 CONDITIONS OF ANY KIND, either express or implied.
9 /****************************************************************************
11 * This file is for gatt server. It can send adv data, be connected by client.
12 * Run the gatt_client demo, the client demo will automatically connect to the gatt_server_service_table demo.
13 * Client demo will enable gatt_server_service_table's notify after connection. Then two devices will exchange
16 ****************************************************************************/
19 #include "freertos/FreeRTOS.h"
20 #include "freertos/task.h"
21 #include "freertos/event_groups.h"
22 #include "esp_system.h"
24 #include "nvs_flash.h"
27 #include "esp_gap_ble_api.h"
28 #include "esp_gatts_api.h"
29 #include "esp_bt_main.h"
30 #include "gatts_table_creat_demo.h"
31 #include "esp_gatt_common_api.h"
33 #define GATTS_TABLE_TAG "GATTS_TABLE_DEMO"
36 #define PROFILE_APP_IDX 0
37 #define ESP_APP_ID 0x55
38 #define SAMPLE_DEVICE_NAME "ESP_GATTS_DEMO"
41 /* The max length of characteristic value. When the gatt client write or prepare write,
42 * the data length must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
44 #define GATTS_DEMO_CHAR_VAL_LEN_MAX 500
45 #define PREPARE_BUF_MAX_SIZE 1024
46 #define CHAR_DECLARATION_SIZE (sizeof(uint8_t))
48 #define ADV_CONFIG_FLAG (1 << 0)
49 #define SCAN_RSP_CONFIG_FLAG (1 << 1)
51 static uint8_t adv_config_done = 0;
53 uint16_t heart_rate_handle_table[HRS_IDX_NB];
60 static prepare_type_env_t prepare_write_env;
62 #define CONFIG_SET_RAW_ADV_DATA
63 #ifdef CONFIG_SET_RAW_ADV_DATA
64 static uint8_t raw_adv_data[] = {
70 0x03, 0x03, 0xFF, 0x00,
72 0x0f, 0x09, 'E', 'S', 'P', '_', 'G', 'A', 'T', 'T', 'S', '_', 'D','E', 'M', 'O'
74 static uint8_t raw_scan_rsp_data[] = {
84 static uint8_t service_uuid[16] = {
85 /* LSB <--------------------------------------------------------------------------------> MSB */
86 //first uuid, 16bit, [12],[13] is the value
87 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,
90 /* The length of adv data must be less than 31 bytes */
91 static esp_ble_adv_data_t adv_data = {
92 .set_scan_rsp = false,
94 .include_txpower = true,
98 .manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
99 .p_manufacturer_data = NULL, //test_manufacturer,
100 .service_data_len = 0,
101 .p_service_data = NULL,
102 .service_uuid_len = sizeof(service_uuid),
103 .p_service_uuid = service_uuid,
104 .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
107 // scan response data
108 static esp_ble_adv_data_t scan_rsp_data = {
109 .set_scan_rsp = true,
110 .include_name = true,
111 .include_txpower = true,
112 .min_interval = 0x20,
113 .max_interval = 0x40,
115 .manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
116 .p_manufacturer_data = NULL, //&test_manufacturer[0],
117 .service_data_len = 0,
118 .p_service_data = NULL,
119 .service_uuid_len = 16,
120 .p_service_uuid = service_uuid,
121 .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
123 #endif /* CONFIG_SET_RAW_ADV_DATA */
125 static esp_ble_adv_params_t adv_params = {
128 .adv_type = ADV_TYPE_IND,
129 .own_addr_type = BLE_ADDR_TYPE_PUBLIC,
130 .channel_map = ADV_CHNL_ALL,
131 .adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
134 struct gatts_profile_inst {
135 esp_gatts_cb_t gatts_cb;
139 uint16_t service_handle;
140 esp_gatt_srvc_id_t service_id;
141 uint16_t char_handle;
142 esp_bt_uuid_t char_uuid;
143 esp_gatt_perm_t perm;
144 esp_gatt_char_prop_t property;
145 uint16_t descr_handle;
146 esp_bt_uuid_t descr_uuid;
149 static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
150 esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
152 /* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
153 static struct gatts_profile_inst heart_rate_profile_tab[PROFILE_NUM] = {
154 [PROFILE_APP_IDX] = {
155 .gatts_cb = gatts_profile_event_handler,
156 .gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
161 static const uint16_t GATTS_SERVICE_UUID_TEST = 0x00FF;
162 static const uint16_t GATTS_CHAR_UUID_TEST_A = 0xFF01;
163 static const uint16_t GATTS_CHAR_UUID_TEST_B = 0xFF02;
164 static const uint16_t GATTS_CHAR_UUID_TEST_C = 0xFF03;
166 static const uint16_t primary_service_uuid = ESP_GATT_UUID_PRI_SERVICE;
167 static const uint16_t character_declaration_uuid = ESP_GATT_UUID_CHAR_DECLARE;
168 static const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
169 static const uint8_t char_prop_read = ESP_GATT_CHAR_PROP_BIT_READ;
170 static const uint8_t char_prop_write = ESP_GATT_CHAR_PROP_BIT_WRITE;
171 static const uint8_t char_prop_read_write_notify = ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
172 static const uint8_t heart_measurement_ccc[2] = {0x00, 0x00};
173 static const uint8_t char_value[4] = {0x11, 0x22, 0x33, 0x44};
176 /* Full Database Description - Used to add attributes into the database */
177 static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] =
179 // Service Declaration
181 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
182 sizeof(uint16_t), sizeof(GATTS_SERVICE_UUID_TEST), (uint8_t *)&GATTS_SERVICE_UUID_TEST}},
184 /* Characteristic Declaration */
186 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
187 CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_write_notify}},
189 /* Characteristic Value */
191 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_CHAR_UUID_TEST_A, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
192 GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}},
194 /* Client Characteristic Configuration Descriptor */
196 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
197 sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}},
199 /* Characteristic Declaration */
201 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
202 CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read}},
204 /* Characteristic Value */
206 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_CHAR_UUID_TEST_B, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
207 GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}},
209 /* Characteristic Declaration */
211 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
212 CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_write}},
214 /* Characteristic Value */
216 {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_CHAR_UUID_TEST_C, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
217 GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}},
221 static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
224 #ifdef CONFIG_SET_RAW_ADV_DATA
225 case ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT:
226 adv_config_done &= (~ADV_CONFIG_FLAG);
227 if (adv_config_done == 0){
228 esp_ble_gap_start_advertising(&adv_params);
231 case ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT:
232 adv_config_done &= (~SCAN_RSP_CONFIG_FLAG);
233 if (adv_config_done == 0){
234 esp_ble_gap_start_advertising(&adv_params);
238 case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
239 adv_config_done &= (~ADV_CONFIG_FLAG);
240 if (adv_config_done == 0){
241 esp_ble_gap_start_advertising(&adv_params);
244 case ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT:
245 adv_config_done &= (~SCAN_RSP_CONFIG_FLAG);
246 if (adv_config_done == 0){
247 esp_ble_gap_start_advertising(&adv_params);
251 case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
252 /* advertising start complete event to indicate advertising start successfully or failed */
253 if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
254 ESP_LOGE(GATTS_TABLE_TAG, "advertising start failed");
256 ESP_LOGI(GATTS_TABLE_TAG, "advertising start successfully");
259 case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
260 if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) {
261 ESP_LOGE(GATTS_TABLE_TAG, "Advertising stop failed");
264 ESP_LOGI(GATTS_TABLE_TAG, "Stop adv successfully\n");
267 case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
268 ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
269 param->update_conn_params.status,
270 param->update_conn_params.min_int,
271 param->update_conn_params.max_int,
272 param->update_conn_params.conn_int,
273 param->update_conn_params.latency,
274 param->update_conn_params.timeout);
281 void example_prepare_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param)
283 ESP_LOGI(GATTS_TABLE_TAG, "prepare write, handle = %d, value len = %d", param->write.handle, param->write.len);
284 esp_gatt_status_t status = ESP_GATT_OK;
285 if (prepare_write_env->prepare_buf == NULL) {
286 prepare_write_env->prepare_buf = (uint8_t *)malloc(PREPARE_BUF_MAX_SIZE * sizeof(uint8_t));
287 prepare_write_env->prepare_len = 0;
288 if (prepare_write_env->prepare_buf == NULL) {
289 ESP_LOGE(GATTS_TABLE_TAG, "%s, Gatt_server prep no mem", __func__);
290 status = ESP_GATT_NO_RESOURCES;
293 if(param->write.offset > PREPARE_BUF_MAX_SIZE) {
294 status = ESP_GATT_INVALID_OFFSET;
295 } else if ((param->write.offset + param->write.len) > PREPARE_BUF_MAX_SIZE) {
296 status = ESP_GATT_INVALID_ATTR_LEN;
299 /*send response when param->write.need_rsp is true */
300 if (param->write.need_rsp){
301 esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
302 if (gatt_rsp != NULL){
303 gatt_rsp->attr_value.len = param->write.len;
304 gatt_rsp->attr_value.handle = param->write.handle;
305 gatt_rsp->attr_value.offset = param->write.offset;
306 gatt_rsp->attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
307 memcpy(gatt_rsp->attr_value.value, param->write.value, param->write.len);
308 esp_err_t response_err = esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, gatt_rsp);
309 if (response_err != ESP_OK){
310 ESP_LOGE(GATTS_TABLE_TAG, "Send response error");
314 ESP_LOGE(GATTS_TABLE_TAG, "%s, malloc failed", __func__);
317 if (status != ESP_GATT_OK){
320 memcpy(prepare_write_env->prepare_buf + param->write.offset,
323 prepare_write_env->prepare_len += param->write.len;
327 void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
328 if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC && prepare_write_env->prepare_buf){
329 esp_log_buffer_hex(GATTS_TABLE_TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
331 ESP_LOGI(GATTS_TABLE_TAG,"ESP_GATT_PREP_WRITE_CANCEL");
333 if (prepare_write_env->prepare_buf) {
334 free(prepare_write_env->prepare_buf);
335 prepare_write_env->prepare_buf = NULL;
337 prepare_write_env->prepare_len = 0;
340 static void gatts_profile_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
343 case ESP_GATTS_REG_EVT:{
344 esp_err_t set_dev_name_ret = esp_ble_gap_set_device_name(SAMPLE_DEVICE_NAME);
345 if (set_dev_name_ret){
346 ESP_LOGE(GATTS_TABLE_TAG, "set device name failed, error code = %x", set_dev_name_ret);
348 #ifdef CONFIG_SET_RAW_ADV_DATA
349 esp_err_t raw_adv_ret = esp_ble_gap_config_adv_data_raw(raw_adv_data, sizeof(raw_adv_data));
351 ESP_LOGE(GATTS_TABLE_TAG, "config raw adv data failed, error code = %x ", raw_adv_ret);
353 adv_config_done |= ADV_CONFIG_FLAG;
354 esp_err_t raw_scan_ret = esp_ble_gap_config_scan_rsp_data_raw(raw_scan_rsp_data, sizeof(raw_scan_rsp_data));
356 ESP_LOGE(GATTS_TABLE_TAG, "config raw scan rsp data failed, error code = %x", raw_scan_ret);
358 adv_config_done |= SCAN_RSP_CONFIG_FLAG;
361 esp_err_t ret = esp_ble_gap_config_adv_data(&adv_data);
363 ESP_LOGE(GATTS_TABLE_TAG, "config adv data failed, error code = %x", ret);
365 adv_config_done |= ADV_CONFIG_FLAG;
366 //config scan response data
367 ret = esp_ble_gap_config_adv_data(&scan_rsp_data);
369 ESP_LOGE(GATTS_TABLE_TAG, "config scan response data failed, error code = %x", ret);
371 adv_config_done |= SCAN_RSP_CONFIG_FLAG;
373 esp_err_t create_attr_ret = esp_ble_gatts_create_attr_tab(gatt_db, gatts_if, HRS_IDX_NB, SVC_INST_ID);
374 if (create_attr_ret){
375 ESP_LOGE(GATTS_TABLE_TAG, "create attr table failed, error code = %x", create_attr_ret);
379 case ESP_GATTS_READ_EVT:
380 ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_READ_EVT");
382 case ESP_GATTS_WRITE_EVT:
383 if (!param->write.is_prep){
384 // the data length of gattc write must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
385 ESP_LOGI(GATTS_TABLE_TAG, "GATT_WRITE_EVT, handle = %d, value len = %d, value :", param->write.handle, param->write.len);
386 esp_log_buffer_hex(GATTS_TABLE_TAG, param->write.value, param->write.len);
387 if (heart_rate_handle_table[IDX_CHAR_CFG_A] == param->write.handle && param->write.len == 2){
388 uint16_t descr_value = param->write.value[1]<<8 | param->write.value[0];
389 if (descr_value == 0x0001){
390 ESP_LOGI(GATTS_TABLE_TAG, "notify enable");
391 uint8_t notify_data[15];
392 for (int i = 0; i < sizeof(notify_data); ++i)
394 notify_data[i] = i % 0xff;
396 //the size of notify_data[] need less than MTU size
397 esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, heart_rate_handle_table[IDX_CHAR_VAL_A],
398 sizeof(notify_data), notify_data, false);
399 }else if (descr_value == 0x0002){
400 ESP_LOGI(GATTS_TABLE_TAG, "indicate enable");
401 uint8_t indicate_data[15];
402 for (int i = 0; i < sizeof(indicate_data); ++i)
404 indicate_data[i] = i % 0xff;
406 //the size of indicate_data[] need less than MTU size
407 esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, heart_rate_handle_table[IDX_CHAR_VAL_A],
408 sizeof(indicate_data), indicate_data, true);
410 else if (descr_value == 0x0000){
411 ESP_LOGI(GATTS_TABLE_TAG, "notify/indicate disable ");
413 ESP_LOGE(GATTS_TABLE_TAG, "unknown descr value");
414 esp_log_buffer_hex(GATTS_TABLE_TAG, param->write.value, param->write.len);
418 /* send response when param->write.need_rsp is true*/
419 if (param->write.need_rsp){
420 esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL);
423 /* handle prepare write */
424 example_prepare_write_event_env(gatts_if, &prepare_write_env, param);
427 case ESP_GATTS_EXEC_WRITE_EVT:
428 // the length of gattc prapare write data must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
429 ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_EXEC_WRITE_EVT");
430 example_exec_write_event_env(&prepare_write_env, param);
432 case ESP_GATTS_MTU_EVT:
433 ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
435 case ESP_GATTS_CONF_EVT:
436 ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONF_EVT, status = %d", param->conf.status);
438 case ESP_GATTS_START_EVT:
439 ESP_LOGI(GATTS_TABLE_TAG, "SERVICE_START_EVT, status %d, service_handle %d", param->start.status, param->start.service_handle);
441 case ESP_GATTS_CONNECT_EVT:
442 ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONNECT_EVT, conn_id = %d", param->connect.conn_id);
443 esp_log_buffer_hex(GATTS_TABLE_TAG, param->connect.remote_bda, 6);
444 esp_ble_conn_update_params_t conn_params = {0};
445 memcpy(conn_params.bda, param->connect.remote_bda, sizeof(esp_bd_addr_t));
446 /* For the IOS system, please reference the apple official documents about the ble connection parameters restrictions. */
447 conn_params.latency = 0;
448 conn_params.max_int = 0x20; // max_int = 0x20*1.25ms = 40ms
449 conn_params.min_int = 0x10; // min_int = 0x10*1.25ms = 20ms
450 conn_params.timeout = 400; // timeout = 400*10ms = 4000ms
451 //start sent the update connection parameters to the peer device.
452 esp_ble_gap_update_conn_params(&conn_params);
454 case ESP_GATTS_DISCONNECT_EVT:
455 ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_DISCONNECT_EVT, reason = %d", param->disconnect.reason);
456 esp_ble_gap_start_advertising(&adv_params);
458 case ESP_GATTS_CREAT_ATTR_TAB_EVT:{
459 if (param->add_attr_tab.status != ESP_GATT_OK){
460 ESP_LOGE(GATTS_TABLE_TAG, "create attribute table failed, error code=0x%x", param->add_attr_tab.status);
462 else if (param->add_attr_tab.num_handle != HRS_IDX_NB){
463 ESP_LOGE(GATTS_TABLE_TAG, "create attribute table abnormally, num_handle (%d) \
464 doesn't equal to HRS_IDX_NB(%d)", param->add_attr_tab.num_handle, HRS_IDX_NB);
467 ESP_LOGI(GATTS_TABLE_TAG, "create attribute table successfully, the number handle = %d\n",param->add_attr_tab.num_handle);
468 memcpy(heart_rate_handle_table, param->add_attr_tab.handles, sizeof(heart_rate_handle_table));
469 esp_ble_gatts_start_service(heart_rate_handle_table[IDX_SVC]);
473 case ESP_GATTS_STOP_EVT:
474 case ESP_GATTS_OPEN_EVT:
475 case ESP_GATTS_CANCEL_OPEN_EVT:
476 case ESP_GATTS_CLOSE_EVT:
477 case ESP_GATTS_LISTEN_EVT:
478 case ESP_GATTS_CONGEST_EVT:
479 case ESP_GATTS_UNREG_EVT:
480 case ESP_GATTS_DELETE_EVT:
487 static void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param)
490 /* If event is register event, store the gatts_if for each profile */
491 if (event == ESP_GATTS_REG_EVT) {
492 if (param->reg.status == ESP_GATT_OK) {
493 heart_rate_profile_tab[PROFILE_APP_IDX].gatts_if = gatts_if;
495 ESP_LOGE(GATTS_TABLE_TAG, "reg app failed, app_id %04x, status %d",
503 for (idx = 0; idx < PROFILE_NUM; idx++) {
504 /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */
505 if (gatts_if == ESP_GATT_IF_NONE || gatts_if == heart_rate_profile_tab[idx].gatts_if) {
506 if (heart_rate_profile_tab[idx].gatts_cb) {
507 heart_rate_profile_tab[idx].gatts_cb(event, gatts_if, param);
518 /* Initialize NVS. */
519 ret = nvs_flash_init();
520 if (ret == ESP_ERR_NVS_NO_FREE_PAGES) {
521 ESP_ERROR_CHECK(nvs_flash_erase());
522 ret = nvs_flash_init();
524 ESP_ERROR_CHECK( ret );
526 ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));
528 esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
529 ret = esp_bt_controller_init(&bt_cfg);
531 ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed: %s", __func__, esp_err_to_name(ret));
535 ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
537 ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed: %s", __func__, esp_err_to_name(ret));
541 ret = esp_bluedroid_init();
543 ESP_LOGE(GATTS_TABLE_TAG, "%s init bluetooth failed: %s", __func__, esp_err_to_name(ret));
547 ret = esp_bluedroid_enable();
549 ESP_LOGE(GATTS_TABLE_TAG, "%s enable bluetooth failed: %s", __func__, esp_err_to_name(ret));
553 ret = esp_ble_gatts_register_callback(gatts_event_handler);
555 ESP_LOGE(GATTS_TABLE_TAG, "gatts register error, error code = %x", ret);
559 ret = esp_ble_gap_register_callback(gap_event_handler);
561 ESP_LOGE(GATTS_TABLE_TAG, "gap register error, error code = %x", ret);
565 ret = esp_ble_gatts_app_register(ESP_APP_ID);
567 ESP_LOGE(GATTS_TABLE_TAG, "gatts app register error, error code = %x", ret);
571 esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500);
573 ESP_LOGE(GATTS_TABLE_TAG, "set local MTU failed, error code = %x", local_mtu_ret);