688 lines
28 KiB
C
688 lines
28 KiB
C
/*
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* SPDX-FileCopyrightText: 2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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/****************************************************************************
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*
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* This demo showcases creating a GATT database using a predefined attribute table.
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* It acts as a GATT server and can send adv data, be connected by client.
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* Run the gatt_client demo, the client demo will automatically connect to the gatt_server_service_table demo.
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* Client demo will enable GATT server's notify after connection. The two devices will then exchange
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* data.
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*
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****************************************************************************/
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "esp_bt.h"
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#include "esp_gap_ble_api.h"
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#include "esp_gatts_api.h"
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#include "esp_bt_main.h"
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#include "ble_gatts_server.h"
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#include "esp_gatt_common_api.h"
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#include "stm32/config.h"
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#include "stm32/ModbusS.h"
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#include "inc/communication_pad.h"
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#define GATTS_TABLE_TAG "BLE_GATTS_SERVER"
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#define PROFILE_NUM 1
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#define PROFILE_APP_IDX 0
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#define ESP_APP_ID 0x55
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#define SAMPLE_DEVICE_NAME "ESP_GATTS_DEMO"
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#define SVC_INST_ID 0
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/* The max length of characteristic value. When the GATT client performs a write or prepare write operation,
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* the data length must be less than GATTS_DEMO_CHAR_VAL_LEN_MAX.
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*/
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#define GATTS_DEMO_CHAR_VAL_LEN_MAX 500
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#define PREPARE_BUF_MAX_SIZE 1024
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#define CHAR_DECLARATION_SIZE (sizeof(uint8_t))
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#define ADV_CONFIG_FLAG (1 << 0)
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#define SCAN_RSP_CONFIG_FLAG (1 << 1)
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static uint8_t adv_config_done = 0;
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uint16_t ble_gatts_handle_table[IDX_NB];
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typedef struct {
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uint8_t *prepare_buf;
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int prepare_len;
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} prepare_type_env_t;
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static prepare_type_env_t prepare_write_env;
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#define CONFIG_SET_RAW_ADV_DATA
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#ifdef CONFIG_SET_RAW_ADV_DATA
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static uint8_t raw_adv_data[] = {
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/* flags */
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0x02, 0x01, 0x06,
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/* tx power*/
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0x02, 0x0a, 0xeb,
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/* service uuid */
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0x03, 0x03, 0xFF, 0x00,
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/* device name */
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0x0f, 0x09, 'E', 'S', 'P', '_', 'G', 'A', 'T', 'T', 'S', '_', 'D','E', 'M', 'O'
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};
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static uint8_t raw_scan_rsp_data[] = {
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/* flags */
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0x02, 0x01, 0x06,
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/* tx power */
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0x02, 0x0a, 0xeb,
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/* service uuid */
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0x03, 0x03, 0xFF,0x00
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};
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#else
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static uint8_t service_uuid[16] = {
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/* LSB <--------------------------------------------------------------------------------> MSB */
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//first uuid, 16bit, [12],[13] is the value
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0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00,
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};
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/* The length of adv data must be less than 31 bytes */
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static esp_ble_adv_data_t adv_data = {
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.set_scan_rsp = false,
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.include_name = true,
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.include_txpower = true,
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.min_interval = 0x0006, //slave connection min interval, Time = min_interval * 1.25 msec
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.max_interval = 0x0010, //slave connection max interval, Time = max_interval * 1.25 msec
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.appearance = 0x00,
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //test_manufacturer,
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(service_uuid),
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.p_service_uuid = service_uuid,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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// scan response data
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static esp_ble_adv_data_t scan_rsp_data = {
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.set_scan_rsp = true,
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.include_name = true,
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.include_txpower = true,
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.min_interval = 0x0006,
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.max_interval = 0x0010,
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.appearance = 0x00,
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.manufacturer_len = 0, //TEST_MANUFACTURER_DATA_LEN,
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.p_manufacturer_data = NULL, //&test_manufacturer[0],
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(service_uuid),
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.p_service_uuid = service_uuid,
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.flag = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT),
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};
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#endif /* CONFIG_SET_RAW_ADV_DATA */
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static esp_ble_adv_params_t adv_params = {
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.adv_int_min = 0x20,
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.adv_int_max = 0x40,
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.adv_type = ADV_TYPE_IND,
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.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
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.channel_map = ADV_CHNL_ALL,
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.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
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};
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struct gatts_profile_inst {
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esp_gatts_cb_t gatts_cb;
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uint16_t gatts_if;
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uint16_t app_id;
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uint16_t conn_id;
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uint16_t service_handle;
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esp_gatt_srvc_id_t service_id;
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uint16_t char_handle;
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esp_bt_uuid_t char_uuid;
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esp_gatt_perm_t perm;
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esp_gatt_char_prop_t property;
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uint16_t descr_handle;
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esp_bt_uuid_t descr_uuid;
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};
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static void gatts_profile_event_handler(esp_gatts_cb_event_t event,
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esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
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/* One gatt-based profile one app_id and one gatts_if, this array will store the gatts_if returned by ESP_GATTS_REG_EVT */
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static struct gatts_profile_inst ble_gatts_profile_tab[PROFILE_NUM] = {
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[PROFILE_APP_IDX] = {
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.gatts_cb = gatts_profile_event_handler,
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.gatts_if = ESP_GATT_IF_NONE, /* Not get the gatt_if, so initial is ESP_GATT_IF_NONE */
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},
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};
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/* Service */
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static const uint16_t GATTS_SERVICE_UUID = 0x00FF;
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static const uint16_t GATTS_DATA_READ_WRITE_UUID = 0xFF01;
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static const uint16_t GATTS_DATA_NOTIFY_UUID = 0xFF02;
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static const uint16_t primary_service_uuid = ESP_GATT_UUID_PRI_SERVICE;
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static const uint16_t character_declaration_uuid = ESP_GATT_UUID_CHAR_DECLARE;
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static const uint16_t character_client_config_uuid = ESP_GATT_UUID_CHAR_CLIENT_CONFIG;
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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;
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static const uint8_t char_prop_read_notify = ESP_GATT_CHAR_PROP_BIT_READ|ESP_GATT_CHAR_PROP_BIT_NOTIFY;
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static const uint8_t data_read_write_value[4] = {0x00};
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static const uint8_t data_read_write_ccc[2] = {0x00, 0x00};
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static const uint8_t data_notify_val[4] = {0x00};
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static const uint8_t data_notify_ccc[2] = {0x00, 0x00};
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bool data_notify_enable = false; /* 是否允许数据上报 */
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bool is_connected = false; /* 蓝牙是否连接 */
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static uint16_t ble_gatts_conn_id = 0xffff;
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static esp_gatt_if_t ble_gatts_if = 0xff;
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/* Full Database Description - Used to add attributes into the database */
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static const esp_gatts_attr_db_t gatt_db[IDX_NB] =
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{
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// Service Declaration
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[IDX_SVC] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&primary_service_uuid, ESP_GATT_PERM_READ,
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sizeof(uint16_t), sizeof(GATTS_SERVICE_UUID), (uint8_t *)&GATTS_SERVICE_UUID}},
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/* Characteristic Declaration */
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[IDX_DATA_READ_WRITE_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE, CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_write_notify}},
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/* Characteristic Value */
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[IDX_DATA_READ_WRITE_VAL] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_DATA_READ_WRITE_UUID, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(data_read_write_value), (uint8_t *)data_read_write_value}},
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/* Client Characteristic Configuration Descriptor */
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[IDX_DATA_READ_WRITE_CFG] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
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sizeof(uint16_t), sizeof(data_read_write_ccc), (uint8_t *)data_read_write_ccc}},
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//SPP - data notify characteristic Declaration
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[IDX_DATA_NOTIFY_CHAR] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_declaration_uuid, ESP_GATT_PERM_READ,
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CHAR_DECLARATION_SIZE,CHAR_DECLARATION_SIZE, (uint8_t *)&char_prop_read_notify}},
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//SPP - data notify characteristic Value
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[IDX_DATA_NOTIFY_VAL] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&GATTS_DATA_NOTIFY_UUID, ESP_GATT_PERM_READ,
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GATTS_DEMO_CHAR_VAL_LEN_MAX, sizeof(data_notify_val), (uint8_t *)data_notify_val}},
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//SPP - data notify characteristic - Client Characteristic Configuration Descriptor
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[IDX_DATA_NOTIFY_CFG] =
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{{ESP_GATT_AUTO_RSP}, {ESP_UUID_LEN_16, (uint8_t *)&character_client_config_uuid, ESP_GATT_PERM_READ|ESP_GATT_PERM_WRITE,
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sizeof(uint16_t),sizeof(data_notify_ccc), (uint8_t *)data_notify_ccc}},
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};
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static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
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{
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switch (event) {
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#ifdef CONFIG_SET_RAW_ADV_DATA
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case ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT:
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adv_config_done &= (~ADV_CONFIG_FLAG);
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if (adv_config_done == 0){
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esp_ble_gap_start_advertising(&adv_params);
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}
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break;
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case ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT:
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adv_config_done &= (~SCAN_RSP_CONFIG_FLAG);
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if (adv_config_done == 0){
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esp_ble_gap_start_advertising(&adv_params);
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}
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break;
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#else
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case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
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adv_config_done &= (~ADV_CONFIG_FLAG);
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if (adv_config_done == 0){
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esp_ble_gap_start_advertising(&adv_params);
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}
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break;
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case ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT:
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adv_config_done &= (~SCAN_RSP_CONFIG_FLAG);
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if (adv_config_done == 0){
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esp_ble_gap_start_advertising(&adv_params);
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}
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break;
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#endif
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case ESP_GAP_BLE_ADV_START_COMPLETE_EVT:
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/* advertising start complete event to indicate advertising start successfully or failed */
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if (param->adv_start_cmpl.status != ESP_BT_STATUS_SUCCESS) {
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ESP_LOGE(GATTS_TABLE_TAG, "advertising start failed");
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}else{
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ESP_LOGI(GATTS_TABLE_TAG, "advertising start successfully");
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}
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break;
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case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT:
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if (param->adv_stop_cmpl.status != ESP_BT_STATUS_SUCCESS) {
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ESP_LOGE(GATTS_TABLE_TAG, "Advertising stop failed");
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}
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else {
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ESP_LOGI(GATTS_TABLE_TAG, "Stop adv successfully\n");
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}
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break;
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case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT:
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ESP_LOGI(GATTS_TABLE_TAG, "update connection params status = %d, min_int = %d, max_int = %d,conn_int = %d,latency = %d, timeout = %d",
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param->update_conn_params.status,
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param->update_conn_params.min_int,
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param->update_conn_params.max_int,
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param->update_conn_params.conn_int,
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param->update_conn_params.latency,
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param->update_conn_params.timeout);
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break;
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default:
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break;
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}
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}
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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)
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{
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ESP_LOGI(GATTS_TABLE_TAG, "prepare write, handle = %d, value len = %d", param->write.handle, param->write.len);
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esp_gatt_status_t status = ESP_GATT_OK;
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if (prepare_write_env->prepare_buf == NULL) {
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prepare_write_env->prepare_buf = (uint8_t *)malloc(PREPARE_BUF_MAX_SIZE * sizeof(uint8_t));
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prepare_write_env->prepare_len = 0;
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if (prepare_write_env->prepare_buf == NULL) {
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ESP_LOGE(GATTS_TABLE_TAG, "%s, Gatt_server prep no mem", __func__);
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status = ESP_GATT_NO_RESOURCES;
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}
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} else {
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if(param->write.offset > PREPARE_BUF_MAX_SIZE) {
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status = ESP_GATT_INVALID_OFFSET;
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} else if ((param->write.offset + param->write.len) > PREPARE_BUF_MAX_SIZE) {
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status = ESP_GATT_INVALID_ATTR_LEN;
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}
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}
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/*send response when param->write.need_rsp is true */
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if (param->write.need_rsp){
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esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
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if (gatt_rsp != NULL){
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gatt_rsp->attr_value.len = param->write.len;
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gatt_rsp->attr_value.handle = param->write.handle;
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gatt_rsp->attr_value.offset = param->write.offset;
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gatt_rsp->attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
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memcpy(gatt_rsp->attr_value.value, param->write.value, param->write.len);
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esp_err_t response_err = esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, gatt_rsp);
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if (response_err != ESP_OK){
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ESP_LOGE(GATTS_TABLE_TAG, "Send response error");
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}
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free(gatt_rsp);
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}else{
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ESP_LOGE(GATTS_TABLE_TAG, "%s, malloc failed", __func__);
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}
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}
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if (status != ESP_GATT_OK){
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return;
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}
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memcpy(prepare_write_env->prepare_buf + param->write.offset,
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param->write.value,
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param->write.len);
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prepare_write_env->prepare_len += param->write.len;
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}
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void example_exec_write_event_env(prepare_type_env_t *prepare_write_env, esp_ble_gatts_cb_param_t *param){
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if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC && prepare_write_env->prepare_buf){
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esp_log_buffer_hex(GATTS_TABLE_TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
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ble_read_data(prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
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}else{
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ESP_LOGI(GATTS_TABLE_TAG,"ESP_GATT_PREP_WRITE_CANCEL");
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}
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if (prepare_write_env->prepare_buf) {
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free(prepare_write_env->prepare_buf);
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prepare_write_env->prepare_buf = NULL;
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}
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prepare_write_env->prepare_len = 0;
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}
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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)
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{
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switch (event) {
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case ESP_GATTS_REG_EVT:{
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esp_err_t set_dev_name_ret = esp_ble_gap_set_device_name(SAMPLE_DEVICE_NAME);
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if (set_dev_name_ret){
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ESP_LOGE(GATTS_TABLE_TAG, "set device name failed, error code = %x", set_dev_name_ret);
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}
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#ifdef CONFIG_SET_RAW_ADV_DATA
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esp_err_t raw_adv_ret = esp_ble_gap_config_adv_data_raw(raw_adv_data, sizeof(raw_adv_data));
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if (raw_adv_ret){
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ESP_LOGE(GATTS_TABLE_TAG, "config raw adv data failed, error code = %x ", raw_adv_ret);
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}
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adv_config_done |= ADV_CONFIG_FLAG;
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esp_err_t raw_scan_ret = esp_ble_gap_config_scan_rsp_data_raw(raw_scan_rsp_data, sizeof(raw_scan_rsp_data));
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if (raw_scan_ret){
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ESP_LOGE(GATTS_TABLE_TAG, "config raw scan rsp data failed, error code = %x", raw_scan_ret);
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}
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adv_config_done |= SCAN_RSP_CONFIG_FLAG;
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#else
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//config adv data
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esp_err_t ret = esp_ble_gap_config_adv_data(&adv_data);
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if (ret){
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ESP_LOGE(GATTS_TABLE_TAG, "config adv data failed, error code = %x", ret);
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}
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adv_config_done |= ADV_CONFIG_FLAG;
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//config scan response data
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ret = esp_ble_gap_config_adv_data(&scan_rsp_data);
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if (ret){
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ESP_LOGE(GATTS_TABLE_TAG, "config scan response data failed, error code = %x", ret);
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}
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adv_config_done |= SCAN_RSP_CONFIG_FLAG;
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#endif
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esp_err_t create_attr_ret = esp_ble_gatts_create_attr_tab(gatt_db, gatts_if, IDX_NB, SVC_INST_ID);
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if (create_attr_ret){
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ESP_LOGE(GATTS_TABLE_TAG, "create attr table failed, error code = %x", create_attr_ret);
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}
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}
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break;
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case ESP_GATTS_READ_EVT:
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ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_READ_EVT");
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// esp_gatt_rsp_t rsp;
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// memset(&rsp, 0, sizeof(esp_gatt_rsp_t));
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// rsp.attr_value.handle = param->read.handle;
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// rsp.attr_value.len = 4;
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// 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, NULL);
|
||
break;
|
||
case ESP_GATTS_WRITE_EVT:
|
||
ESP_LOGI(GATTS_TABLE_TAG, "ESP_GATTS_WRITE_EVT, need_rsp=%d", param->write.need_rsp);
|
||
|
||
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 (ble_gatts_handle_table[IDX_DATA_READ_WRITE_VAL] == param->write.handle)
|
||
{
|
||
ble_read_data(param->write.value, param->write.len);
|
||
}
|
||
if (ble_gatts_handle_table[IDX_DATA_NOTIFY_CFG] == 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");
|
||
data_notify_enable = true;
|
||
}//else if (descr_value == 0x0002){
|
||
// ESP_LOGI(GATTS_TABLE_TAG, "indicate enable");
|
||
// }
|
||
else if (descr_value == 0x0000){
|
||
ESP_LOGI(GATTS_TABLE_TAG, "notify/indicate disable ");
|
||
data_notify_enable = false;
|
||
}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);
|
||
is_connected = true;
|
||
ble_gatts_conn_id = param->connect.conn_id;
|
||
ble_gatts_if = gatts_if;
|
||
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);
|
||
is_connected = false;
|
||
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 != IDX_NB){
|
||
ESP_LOGE(GATTS_TABLE_TAG, "create attribute table abnormally, num_handle (%d) \
|
||
doesn't equal to IDX_NB(%d)", param->add_attr_tab.num_handle, IDX_NB);
|
||
}
|
||
else {
|
||
ESP_LOGI(GATTS_TABLE_TAG, "create attribute table successfully, the number handle = %d\n",param->add_attr_tab.num_handle);
|
||
memcpy(ble_gatts_handle_table, param->add_attr_tab.handles, sizeof(ble_gatts_handle_table));
|
||
esp_ble_gatts_start_service(ble_gatts_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) {
|
||
ble_gatts_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 == ble_gatts_profile_tab[idx].gatts_if) {
|
||
if (ble_gatts_profile_tab[idx].gatts_cb) {
|
||
ble_gatts_profile_tab[idx].gatts_cb(event, gatts_if, param);
|
||
}
|
||
}
|
||
}
|
||
} while (0);
|
||
}
|
||
|
||
|
||
void ble_gatts_server_init(void)
|
||
{
|
||
esp_err_t 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);
|
||
}
|
||
}
|
||
|
||
|
||
/*
|
||
* 上报长度过长，则分包，这里限制长度最大20，分包协议：
|
||
* [0] ‘#’，分包标识
|
||
* [1] 总包个数
|
||
* [2] 当前包号，从0开始
|
||
* ... 包数据
|
||
*/
|
||
static uint16_t gatts_mtu_size = 23;
|
||
void ble_write_data(int id, uint8_t *data, int len)
|
||
{
|
||
ESP_LOGI(GATTS_TABLE_TAG, "ble_write_data %d:", len);
|
||
esp_log_buffer_hex(GATTS_TABLE_TAG, data, len);
|
||
if (len <= gatts_mtu_size - 3) /* 包数据可以一次完整发送 */
|
||
{
|
||
esp_ble_gatts_send_indicate(ble_gatts_if, ble_gatts_conn_id, ble_gatts_handle_table[id], len, data, false);
|
||
}
|
||
else /* 需要分包发送 */
|
||
{
|
||
int total_num = 0;
|
||
uint8_t buf[gatts_mtu_size - 3];
|
||
if ((len % (gatts_mtu_size - 6)) == 0){
|
||
total_num = len / (gatts_mtu_size - 6);
|
||
}
|
||
else{
|
||
total_num = len / (gatts_mtu_size - 6) + 1;
|
||
}
|
||
// ESP_LOGI(GATTS_TABLE_TAG, "notify packet has %d", total_num);
|
||
|
||
int i = 0;
|
||
buf[0] = '#';
|
||
buf[1] = total_num;
|
||
for (i = 0; i < total_num - 1; i++)
|
||
{
|
||
buf[2] = i;
|
||
memcpy(buf + 3, data + i * (gatts_mtu_size - 6), gatts_mtu_size - 6);
|
||
esp_ble_gatts_send_indicate(ble_gatts_if, ble_gatts_conn_id, ble_gatts_handle_table[id],gatts_mtu_size - 3, buf, false);
|
||
}
|
||
/* 最后一个包 */
|
||
buf[2] = i;
|
||
memcpy(buf + 3, data + i * (gatts_mtu_size - 6), len % (gatts_mtu_size - 6));
|
||
esp_ble_gatts_send_indicate(ble_gatts_if, ble_gatts_conn_id, ble_gatts_handle_table[id], (len % (gatts_mtu_size - 6)) + 3, buf, false);
|
||
// ESP_LOGI(GATTS_TABLE_TAG, "notify packet send end!");
|
||
}
|
||
}
|
||
|
||
// 注意，该函数不是线程安全了，因为假设包是按顺序接受的，无法同时处理多个包的交替发送
|
||
void ble_read_data(uint8_t *data, int len)
|
||
{
|
||
ESP_LOGI(GATTS_TABLE_TAG, "ble_read_data");
|
||
static uint8_t buf[1024]; // 注意，这里大小没处理
|
||
static int buflen = 0;
|
||
static int total_num = 0;
|
||
static int next_packet_id = 0;
|
||
uint8_t *txbuf = NULL;
|
||
int txlen = 0;
|
||
|
||
if (len <= 0) return;
|
||
if (data[0] == '#') // 分包数据
|
||
{
|
||
if (len < 3) return;
|
||
if ((buflen != 0 && data[1] != total_num) || data[2] != next_packet_id) // 包错误，全部丢弃
|
||
{
|
||
ESP_LOGE(GATTS_TABLE_TAG, "ble packet err!");
|
||
buflen = 0;
|
||
next_packet_id = 0;
|
||
return;
|
||
}
|
||
if (buflen == 0) total_num = data[1];
|
||
|
||
memcpy(buf + buflen, data + 3, len - 3);
|
||
buflen += len - 3;
|
||
next_packet_id++;
|
||
if (next_packet_id == data[1]) // 接收完成
|
||
{
|
||
ESP_LOGI(GATTS_TABLE_TAG, "ble paclet recoved ok, all %d packets!", next_packet_id);
|
||
esp_log_buffer_hex(GATTS_TABLE_TAG, buf, buflen);
|
||
pad_deal_recived_data(buf, buflen, &data_notify_enable, &txbuf, &txlen);
|
||
if (txbuf != NULL)
|
||
{
|
||
ble_write_data(IDX_DATA_READ_WRITE_VAL, txbuf, txlen);
|
||
free(txbuf);
|
||
}
|
||
buflen = 0;
|
||
next_packet_id = 0;
|
||
}
|
||
}
|
||
else // 不分包的数据
|
||
{
|
||
esp_log_buffer_hex(GATTS_TABLE_TAG, data, len);
|
||
pad_deal_recived_data(data, len, &data_notify_enable, &txbuf, &txlen);
|
||
if (txbuf != NULL)
|
||
{
|
||
ble_write_data(IDX_DATA_READ_WRITE_VAL, txbuf, txlen);
|
||
free(txbuf);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
void ble_server_notify(uint8_t *data, int len)
|
||
{
|
||
if (data_notify_enable && is_connected)
|
||
{
|
||
ble_write_data(IDX_DATA_NOTIFY_VAL, data, len);
|
||
}
|
||
}
|