diff --git a/README.md b/README.md index eb169a4..1c80e50 100644 --- a/README.md +++ b/README.md @@ -1,2 +1,9 @@ -# t_esp32_ble_gatts_table +| Supported Targets | ESP32 | ESP32-C3 | +| ----------------- | ----- | -------- | +ESP-IDF Gatt Server Service Table Demo +=============================================== + +This demo shows how to create a GATT service with an attribute table defined in one place. Provided API releases the user from adding attributes one by one as implemented in BLUEDROID. A demo of the other method to create the attribute table is presented in [gatt_server_demo](../gatt_server). + +Please check the [tutorial](tutorial/Gatt_Server_Service_Table_Example_Walkthrough.md) for more information about this example. diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt new file mode 100644 index 0000000..c0a6838 --- /dev/null +++ b/main/CMakeLists.txt @@ -0,0 +1,2 @@ +idf_component_register(SRCS "gatts_table_creat_demo.c" + INCLUDE_DIRS ".") diff --git a/main/component.mk b/main/component.mk new file mode 100644 index 0000000..a98f634 --- /dev/null +++ b/main/component.mk @@ -0,0 +1,4 @@ +# +# "main" pseudo-component makefile. +# +# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.) diff --git a/main/gatts_table_creat_demo.c b/main/gatts_table_creat_demo.c new file mode 100644 index 0000000..23b8cd4 --- /dev/null +++ b/main/gatts_table_creat_demo.c @@ -0,0 +1,576 @@ +/* + 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. +*/ + +/**************************************************************************** +* +* This demo showcases creating a GATT database using a predefined attribute table. +* It acts as a GATT server and can send adv data, be connected by client. +* Run the gatt_client demo, the client demo will automatically connect to the gatt_server_service_table demo. +* Client demo will enable GATT server's notify after connection. The two devices will then exchange +* data. +* +****************************************************************************/ + + +#include "freertos/FreeRTOS.h" +#include "freertos/task.h" +#include "freertos/event_groups.h" +#include "esp_system.h" +#include "esp_log.h" +#include "nvs_flash.h" +#include "esp_bt.h" + +#include "esp_gap_ble_api.h" +#include "esp_gatts_api.h" +#include "esp_bt_main.h" +#include "gatts_table_creat_demo.h" +#include "esp_gatt_common_api.h" + +#define GATTS_TABLE_TAG "GATTS_TABLE_DEMO" + +#define PROFILE_NUM 1 +#define PROFILE_APP_IDX 0 +#define ESP_APP_ID 0x55 +#define SAMPLE_DEVICE_NAME "ESP_GATTS_DEMO" +#define SVC_INST_ID 0 + +/* The max length of characteristic value. When the GATT client performs a write or prepare write operation, +* the data length must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX. +*/ +#define GATTS_DEMO_CHAR_VAL_LEN_MAX 500 +#define PREPARE_BUF_MAX_SIZE 1024 +#define CHAR_DECLARATION_SIZE (sizeof(uint8_t)) + +#define ADV_CONFIG_FLAG (1 << 0) +#define SCAN_RSP_CONFIG_FLAG (1 << 1) + +static uint8_t adv_config_done = 0; + +uint16_t heart_rate_handle_table[HRS_IDX_NB]; + +typedef struct { + uint8_t *prepare_buf; + int prepare_len; +} prepare_type_env_t; + +static prepare_type_env_t prepare_write_env; + +#define CONFIG_SET_RAW_ADV_DATA +#ifdef CONFIG_SET_RAW_ADV_DATA +static uint8_t raw_adv_data[] = { + /* flags */ + 0x02, 0x01, 0x06, + /* tx power*/ + 0x02, 0x0a, 0xeb, + /* service uuid */ + 0x03, 0x03, 0xFF, 0x00, + /* device name */ + 0x0f, 0x09, 'E', 'S', 'P', '_', 'G', 'A', 'T', 'T', 'S', '_', 'D','E', 'M', 'O' +}; +static uint8_t raw_scan_rsp_data[] = { + /* flags */ + 0x02, 0x01, 0x06, + /* tx power */ + 0x02, 0x0a, 0xeb, + /* service uuid */ + 0x03, 0x03, 0xFF,0x00 +}; + +#else +static uint8_t service_uuid[16] = { + /* LSB <--------------------------------------------------------------------------------> MSB */ + //first uuid, 16bit, [12],[13] is the value + 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, +}; + +/* The length of adv data must be less than 31 bytes */ +static esp_ble_adv_data_t adv_data = { + .set_scan_rsp = false, + .include_name = true, + .include_txpower = true, + .min_interval = 0x0006, //slave connection min interval, Time = min_interval * 1.25 msec + .max_interval = 0x0010, //slave connection max interval, Time = max_interval * 1.25 msec + .appearance = 0x00, + .manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN, + .p_manufacturer_data = NULL, //test_manufacturer, + .service_data_len = 0, + .p_service_data = NULL, + .service_uuid_len = sizeof(service_uuid), + .p_service_uuid = service_uuid, + .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT), +}; + +// scan response data +static esp_ble_adv_data_t scan_rsp_data = { + .set_scan_rsp = true, + .include_name = true, + .include_txpower = true, + .min_interval = 0x0006, + .max_interval = 0x0010, + .appearance = 0x00, + .manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN, + .p_manufacturer_data = NULL, //&test_manufacturer[0], + .service_data_len = 0, + .p_service_data = NULL, + .service_uuid_len = sizeof(service_uuid), + .p_service_uuid = service_uuid, + .flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT), +}; +#endif /* CONFIG_SET_RAW_ADV_DATA */ + +static esp_ble_adv_params_t adv_params = { + .adv_int_min = 0x20, + .adv_int_max = 0x40, + .adv_type = ADV_TYPE_IND, + .own_addr_type = BLE_ADDR_TYPE_PUBLIC, + .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; +}; + +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); + +/* 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 heart_rate_profile_tab[PROFILE_NUM] = { + [PROFILE_APP_IDX] = { + .gatts_cb = gatts_profile_event_handler, + .gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */ + }, +}; + +/* Service */ +static const uint16_t GATTS_SERVICE_UUID_TEST = 0x00FF; +static const uint16_t GATTS_CHAR_UUID_TEST_A = 0xFF01; +static const uint16_t GATTS_CHAR_UUID_TEST_B = 0xFF02; +// static const uint16_t GATTS_CHAR_UUID_TEST_C = 0xFF03; + +static const uint16_t primary_service_uuid = ESP_GATT_UUID_PRI_SERVICE; +static const uint16_t character_declaration_uuid = ESP_GATT_UUID_CHAR_DECLARE; +static const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG; +static const uint8_t char_prop_read = ESP_GATT_CHAR_PROP_BIT_READ; +// static const uint8_t char_prop_write = ESP_GATT_CHAR_PROP_BIT_WRITE; +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; +static const uint8_t heart_measurement_ccc[2] = {0x00, 0x00}; +static const uint8_t char_value[4] = {0x11, 0x22, 0x33, 0x44}; + + +/* Full Database Description - Used to add attributes into the database */ +static const esp_gatts_attr_db_t gatt_db[HRS_IDX_NB] = +{ + // Service Declaration + [IDX_SVC] = + {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ, + sizeof(uint16_t), sizeof(GATTS_SERVICE_UUID_TEST), (uint8_t *)&GATTS_SERVICE_UUID_TEST}}, + + /* Characteristic Declaration */ + [IDX_CHAR_A] = + {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ, + CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_write_notify}}, + + /* Characteristic Value */ + [IDX_CHAR_VAL_A] = + {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_CHAR_UUID_TEST_A, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE, + GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}}, + + /* Client Characteristic Configuration Descriptor */ + [IDX_CHAR_CFG_A] = + {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE, + sizeof(uint16_t), sizeof(heart_measurement_ccc), (uint8_t *)heart_measurement_ccc}}, + + /* Characteristic Declaration */ + [IDX_CHAR_B] = + {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ, + CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read}}, + + /* Characteristic Value */ + [IDX_CHAR_VAL_B] = + {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_CHAR_UUID_TEST_B, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE, + GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}}, + + // /* Characteristic Declaration */ + // [IDX_CHAR_C] = + // {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ, + // CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_write}}, + + // /* Characteristic Value */ + // [IDX_CHAR_VAL_C] = + // {{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_CHAR_UUID_TEST_C, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE, + // GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(char_value), (uint8_t *)char_value}}, + +}; + +static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param) +{ + switch (event) { + #ifdef CONFIG_SET_RAW_ADV_DATA + case ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT: + adv_config_done &= (~ADV_CONFIG_FLAG); + if (adv_config_done == 0){ + esp_ble_gap_start_advertising(&adv_params); + } + break; + case ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT: + adv_config_done &= (~SCAN_RSP_CONFIG_FLAG); + if (adv_config_done == 0){ + esp_ble_gap_start_advertising(&adv_params); + } + break; + #else + case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT: + adv_config_done &= (~ADV_CONFIG_FLAG); + if (adv_config_done == 0){ + esp_ble_gap_start_advertising(&adv_params); + } + break; + case ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT: + adv_config_done &= (~SCAN_RSP_CONFIG_FLAG); + if (adv_config_done == 0){ + esp_ble_gap_start_advertising(&adv_params); + } + break; + #endif + 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(GATTS_TABLE_TAG, "advertising start failed"); + }else{ + ESP_LOGI(GATTS_TABLE_TAG, "advertising start successfully"); + } + break; + case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT: + if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) { + ESP_LOGE(GATTS_TABLE_TAG, "Advertising stop failed"); + } + else { + ESP_LOGI(GATTS_TABLE_TAG, "Stop adv successfully\n"); + } + break; + case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "update connection 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_prepare_write_event_env(esp_gatt_if_t gatts_if, prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param) +{ + ESP_LOGI(GATTS_TABLE_TAG, "prepare write, handle = %d, value len = %d", param->write.handle, param->write.len); + esp_gatt_status_t status = ESP_GATT_OK; + 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(GATTS_TABLE_TAG, "%s, Gatt_server prep no mem", __func__); + 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; + } + } + /*send response when param->write.need_rsp is true */ + if (param->write.need_rsp){ + esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t)); + if (gatt_rsp != NULL){ + 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(GATTS_TABLE_TAG, "Send response error"); + } + free(gatt_rsp); + }else{ + ESP_LOGE(GATTS_TABLE_TAG, "%s, malloc failed", __func__); + } + } + 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; + +} + +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 && prepare_write_env->prepare_buf){ + esp_log_buffer_hex(GATTS_TABLE_TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len); + }else{ + ESP_LOGI(GATTS_TABLE_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_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_err_t set_dev_name_ret = esp_ble_gap_set_device_name(SAMPLE_DEVICE_NAME); + if (set_dev_name_ret){ + ESP_LOGE(GATTS_TABLE_TAG, "set device name failed, error code = %x", set_dev_name_ret); + } + #ifdef CONFIG_SET_RAW_ADV_DATA + 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(GATTS_TABLE_TAG, "config raw adv data failed, error code = %x ", raw_adv_ret); + } + adv_config_done |= ADV_CONFIG_FLAG; + esp_err_t raw_scan_ret = esp_ble_gap_config_scan_rsp_data_raw(raw_scan_rsp_data, sizeof(raw_scan_rsp_data)); + if (raw_scan_ret){ + ESP_LOGE(GATTS_TABLE_TAG, "config raw scan rsp data failed, error code = %x", raw_scan_ret); + } + adv_config_done |= SCAN_RSP_CONFIG_FLAG; + #else + //config adv data + esp_err_t ret = esp_ble_gap_config_adv_data(&adv_data); + if (ret){ + ESP_LOGE(GATTS_TABLE_TAG, "config adv data failed, error code = %x", ret); + } + adv_config_done |= ADV_CONFIG_FLAG; + //config scan response data + ret = esp_ble_gap_config_adv_data(&scan_rsp_data); + if (ret){ + ESP_LOGE(GATTS_TABLE_TAG, "config scan response data failed, error code = %x", ret); + } + adv_config_done |= SCAN_RSP_CONFIG_FLAG; + #endif + esp_err_t create_attr_ret = esp_ble_gatts_create_attr_tab(gatt_db, gatts_if, HRS_IDX_NB, SVC_INST_ID); + if (create_attr_ret){ + ESP_LOGE(GATTS_TABLE_TAG, "create attr table failed, error code = %x", create_attr_ret); + } + } + break; + case ESP_GATTS_READ_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_READ_EVT"); + break; + case ESP_GATTS_WRITE_EVT: + if (!param->write.is_prep){ + // the data length of gattc write must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX. + ESP_LOGI(GATTS_TABLE_TAG, "GATT_WRITE_EVT, handle = %d, value len = %d, value :", param->write.handle, param->write.len); + esp_log_buffer_hex(GATTS_TABLE_TAG, param->write.value, param->write.len); + if (heart_rate_handle_table[IDX_CHAR_CFG_A] == param->write.handle && param->write.len == 2){ + uint16_t descr_value = param->write.value[1]<<8 | param->write.value[0]; + if (descr_value == 0x0001){ + ESP_LOGI(GATTS_TABLE_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, heart_rate_handle_table[IDX_CHAR_VAL_A], + sizeof(notify_data), notify_data, false); + }else if (descr_value == 0x0002){ + ESP_LOGI(GATTS_TABLE_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, heart_rate_handle_table[IDX_CHAR_VAL_A], + sizeof(indicate_data), indicate_data, true); + } + else if (descr_value == 0x0000){ + ESP_LOGI(GATTS_TABLE_TAG, "notify/indicate disable "); + }else{ + ESP_LOGE(GATTS_TABLE_TAG, "unknown descr value"); + esp_log_buffer_hex(GATTS_TABLE_TAG, param->write.value, param->write.len); + } + + } + /* send response when param->write.need_rsp is true*/ + if (param->write.need_rsp){ + esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, NULL); + } + }else{ + /* handle prepare write */ + example_prepare_write_event_env(gatts_if, &prepare_write_env, param); + } + break; + case ESP_GATTS_EXEC_WRITE_EVT: + // the length of gattc prepare write data must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX. + ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_EXEC_WRITE_EVT"); + example_exec_write_event_env(&prepare_write_env, param); + break; + case ESP_GATTS_MTU_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu); + break; + case ESP_GATTS_CONF_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONF_EVT, status = %d, attr_handle %d", param->conf.status, param->conf.handle); + break; + case ESP_GATTS_START_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "SERVICE_START_EVT, status %d, service_handle %d", param->start.status, param->start.service_handle); + break; + case ESP_GATTS_CONNECT_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_CONNECT_EVT, conn_id = %d", param->connect.conn_id); + esp_log_buffer_hex(GATTS_TABLE_TAG, param->connect.remote_bda, 6); + esp_ble_conn_update_params_t conn_params = {0}; + memcpy(conn_params.bda, param->connect.remote_bda, sizeof(esp_bd_addr_t)); + /* For the iOS system, please refer to Apple official documents about the BLE connection parameters restrictions. */ + conn_params.latency = 0; + conn_params.max_int = 0x20; // max_int = 0x20*1.25ms = 40ms + conn_params.min_int = 0x10; // min_int = 0x10*1.25ms = 20ms + conn_params.timeout = 400; // timeout = 400*10ms = 4000ms + //start sent the update connection parameters to the peer device. + esp_ble_gap_update_conn_params(&conn_params); + break; + case ESP_GATTS_DISCONNECT_EVT: + ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_DISCONNECT_EVT, reason = 0x%x", param->disconnect.reason); + esp_ble_gap_start_advertising(&adv_params); + break; + case ESP_GATTS_CREAT_ATTR_TAB_EVT:{ + if (param->add_attr_tab.status != ESP_GATT_OK){ + ESP_LOGE(GATTS_TABLE_TAG, "create attribute table failed, error code=0x%x", param->add_attr_tab.status); + } + else if (param->add_attr_tab.num_handle != HRS_IDX_NB){ + ESP_LOGE(GATTS_TABLE_TAG, "create attribute table abnormally, num_handle (%d) \ + doesn't equal to HRS_IDX_NB(%d)", param->add_attr_tab.num_handle, HRS_IDX_NB); + } + else { + ESP_LOGI(GATTS_TABLE_TAG, "create attribute table successfully, the number handle = %d\n",param->add_attr_tab.num_handle); + memcpy(heart_rate_handle_table, param->add_attr_tab.handles, sizeof(heart_rate_handle_table)); + esp_ble_gatts_start_service(heart_rate_handle_table[IDX_SVC]); + } + break; + } + case ESP_GATTS_STOP_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: + case ESP_GATTS_UNREG_EVT: + case ESP_GATTS_DELETE_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) { + heart_rate_profile_tab[PROFILE_APP_IDX].gatts_if = gatts_if; + } else { + ESP_LOGE(GATTS_TABLE_TAG, "reg app failed, app_id %04x, status %d", + param->reg.app_id, + param->reg.status); + return; + } + } + do { + int idx; + for (idx = 0; idx < PROFILE_NUM; idx++) { + /* ESP_GATT_IF_NONE, not specify a certain gatt_if, need to call every profile cb function */ + if (gatts_if == ESP_GATT_IF_NONE || gatts_if == heart_rate_profile_tab[idx].gatts_if) { + if (heart_rate_profile_tab[idx].gatts_cb) { + heart_rate_profile_tab[idx].gatts_cb(event, gatts_if, param); + } + } + } + } while (0); +} + +void app_main(void) +{ + esp_err_t ret; + + /* Initialize NVS. */ + ret = nvs_flash_init(); + if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) { + ESP_ERROR_CHECK(nvs_flash_erase()); + ret = nvs_flash_init(); + } + ESP_ERROR_CHECK( ret ); + + ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT)); + + esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT(); + ret = esp_bt_controller_init(&bt_cfg); + if (ret) { + ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed: %s", __func__, esp_err_to_name(ret)); + return; + } + + ret = esp_bt_controller_enable(ESP_BT_MODE_BLE); + if (ret) { + ESP_LOGE(GATTS_TABLE_TAG, "%s enable controller failed: %s", __func__, esp_err_to_name(ret)); + return; + } + + ret = esp_bluedroid_init(); + if (ret) { + ESP_LOGE(GATTS_TABLE_TAG, "%s init bluetooth failed: %s", __func__, esp_err_to_name(ret)); + return; + } + + ret = esp_bluedroid_enable(); + if (ret) { + ESP_LOGE(GATTS_TABLE_TAG, "%s enable bluetooth failed: %s", __func__, esp_err_to_name(ret)); + return; + } + + ret = esp_ble_gatts_register_callback(gatts_event_handler); + if (ret){ + ESP_LOGE(GATTS_TABLE_TAG, "gatts register error, error code = %x", ret); + return; + } + + ret = esp_ble_gap_register_callback(gap_event_handler); + if (ret){ + ESP_LOGE(GATTS_TABLE_TAG, "gap register error, error code = %x", ret); + return; + } + + ret = esp_ble_gatts_app_register(ESP_APP_ID); + if (ret){ + ESP_LOGE(GATTS_TABLE_TAG, "gatts app register error, error code = %x", ret); + return; + } + + esp_err_t local_mtu_ret = esp_ble_gatt_set_local_mtu(500); + if (local_mtu_ret){ + ESP_LOGE(GATTS_TABLE_TAG, "set local MTU failed, error code = %x", local_mtu_ret); + } +} diff --git a/main/gatts_table_creat_demo.h b/main/gatts_table_creat_demo.h new file mode 100644 index 0000000..20379cf --- /dev/null +++ b/main/gatts_table_creat_demo.h @@ -0,0 +1,30 @@ +/* + 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 +#include +#include + + +/* Attributes State Machine */ +enum +{ + IDX_SVC, + IDX_CHAR_A, + IDX_CHAR_VAL_A, + IDX_CHAR_CFG_A, + + IDX_CHAR_B, + IDX_CHAR_VAL_B, + + IDX_CHAR_C, + IDX_CHAR_VAL_C, + + HRS_IDX_NB, +};