739 lines
32 KiB
C
739 lines
32 KiB
C
/*
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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/****************************************************************************
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*
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* This file is for gatt server. It 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 demo.
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* Client demo will enable gatt_server's notify after connection. Then two devices will exchange
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* data.
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*
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****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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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_defs.h"
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#include "esp_bt_main.h"
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#include "esp_bt_main.h"
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#include "esp_gatt_common_api.h"
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#include "sdkconfig.h"
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#define GATTS_TAG "GATTS_DEMO"
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///Declare the static function
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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);
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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);
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#define GATTS_SERVICE_UUID_TEST_A 0x00FF
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#define GATTS_CHAR_UUID_TEST_A 0xFF01
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#define GATTS_DESCR_UUID_TEST_A 0x3333
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#define GATTS_NUM_HANDLE_TEST_A 4
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#define GATTS_SERVICE_UUID_TEST_B 0x00EE
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#define GATTS_CHAR_UUID_TEST_B 0xEE01
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#define GATTS_DESCR_UUID_TEST_B 0x2222
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#define GATTS_NUM_HANDLE_TEST_B 4
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#define TEST_DEVICE_NAME "ESP_GATTS_DEMO"
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#define TEST_MANUFACTURER_DATA_LEN 17
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#define GATTS_DEMO_CHAR_VAL_LEN_MAX 0x40
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#define PREPARE_BUF_MAX_SIZE 1024
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uint8_t char1_str[] = {0x11,0x22,0x33};
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esp_gatt_char_prop_t a_property = 0;
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esp_gatt_char_prop_t b_property = 0;
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esp_attr_value_t gatts_demo_char1_val =
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{
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.attr_max_len = GATTS_DEMO_CHAR_VAL_LEN_MAX,
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.attr_len = sizeof(char1_str),
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.attr_value = char1_str,
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};
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static uint8_t adv_config_done = 0;
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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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#ifdef CONFIG_SET_RAW_ADV_DATA
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static uint8_t raw_adv_data[] = {
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0x02, 0x01, 0x06,
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0x02, 0x0a, 0xeb, 0x03, 0x03, 0xab, 0xcd
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};
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static uint8_t raw_scan_rsp_data[] = {
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0x0f, 0x09, 0x45, 0x53, 0x50, 0x5f, 0x47, 0x41, 0x54, 0x54, 0x53, 0x5f, 0x44,
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0x45, 0x4d, 0x4f
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};
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#else
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static uint8_t adv_service_uuid128[32] = {
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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, 0xEE, 0x00, 0x00, 0x00,
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//second uuid, 32bit, [12], [13], [14], [15] 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 uint8_t test_manufacturer[TEST_MANUFACTURER_DATA_LEN] = {0x12, 0x23, 0x45, 0x56};
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//adv data
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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[0],
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = 32,
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.p_service_uuid = adv_service_uuid128,
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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 = 32,
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.p_service_uuid = adv_service_uuid128,
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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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//.peer_addr =
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//.peer_addr_type =
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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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#define PROFILE_NUM 2
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#define PROFILE_A_APP_ID 0
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#define PROFILE_B_APP_ID 1
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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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/* 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 gl_profile_tab[PROFILE_NUM] = {
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[PROFILE_A_APP_ID] = {
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.gatts_cb = gatts_profile_a_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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[PROFILE_B_APP_ID] = {
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.gatts_cb = gatts_profile_b_event_handler, /* This demo does not implement, similar as profile A */
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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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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 a_prepare_write_env;
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static prepare_type_env_t b_prepare_write_env;
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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);
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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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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_TAG, "Advertising start failed\n");
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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_TAG, "Advertising stop failed\n");
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}
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else {
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ESP_LOGI(GATTS_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_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_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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esp_gatt_status_t status = ESP_GATT_OK;
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if (param->write.need_rsp){
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if (param->write.is_prep){
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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_TAG, "Gatt_server prep no mem\n");
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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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esp_gatt_rsp_t *gatt_rsp = (esp_gatt_rsp_t *)malloc(sizeof(esp_gatt_rsp_t));
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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_TAG, "Send response error\n");
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}
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free(gatt_rsp);
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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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}else{
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esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, status, NULL);
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}
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}
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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){
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esp_log_buffer_hex(GATTS_TAG, prepare_write_env->prepare_buf, prepare_write_env->prepare_len);
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}else{
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ESP_LOGI(GATTS_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_a_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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switch (event) {
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case ESP_GATTS_REG_EVT:
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ESP_LOGI(GATTS_TAG, "REGISTER_APP_EVT, status %d, app_id %d\n", param->reg.status, param->reg.app_id);
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gl_profile_tab[PROFILE_A_APP_ID].service_id.is_primary = true;
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gl_profile_tab[PROFILE_A_APP_ID].service_id.id.inst_id = 0x00;
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gl_profile_tab[PROFILE_A_APP_ID].service_id.id.uuid.len = ESP_UUID_LEN_16;
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gl_profile_tab[PROFILE_A_APP_ID].service_id.id.uuid.uuid.uuid16 = GATTS_SERVICE_UUID_TEST_A;
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esp_err_t set_dev_name_ret = esp_ble_gap_set_device_name(TEST_DEVICE_NAME);
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if (set_dev_name_ret){
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ESP_LOGE(GATTS_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_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_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_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_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_ble_gatts_create_service(gatts_if, &gl_profile_tab[PROFILE_A_APP_ID].service_id, GATTS_NUM_HANDLE_TEST_A);
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break;
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case ESP_GATTS_READ_EVT: {
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ESP_LOGI(GATTS_TAG, "GATT_READ_EVT, conn_id %d, trans_id %d, handle %d\n", param->read.conn_id, param->read.trans_id, param->read.handle);
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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;
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rsp.attr_value.value[1] = 0xed;
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rsp.attr_value.value[2] = 0xbe;
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rsp.attr_value.value[3] = 0xef;
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esp_ble_gatts_send_response(gatts_if, param->read.conn_id, param->read.trans_id,
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ESP_GATT_OK, &rsp);
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break;
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}
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case ESP_GATTS_WRITE_EVT: {
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ESP_LOGI(GATTS_TAG, "GATT_WRITE_EVT, conn_id %d, trans_id %d, handle %d", param->write.conn_id, param->write.trans_id, param->write.handle);
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if (!param->write.is_prep){
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ESP_LOGI(GATTS_TAG, "GATT_WRITE_EVT, value len %d, value :", param->write.len);
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esp_log_buffer_hex(GATTS_TAG, param->write.value, param->write.len);
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if (gl_profile_tab[PROFILE_A_APP_ID].descr_handle == param->write.handle && param->write.len == 2){
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uint16_t descr_value = param->write.value[1]<<8 | param->write.value[0];
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if (descr_value == 0x0001){
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if (a_property & ESP_GATT_CHAR_PROP_BIT_NOTIFY){
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ESP_LOGI(GATTS_TAG, "notify enable");
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uint8_t notify_data[15];
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for (int i = 0; i < sizeof(notify_data); ++i)
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{
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notify_data[i] = i%0xff;
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}
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//the size of notify_data[] need less than MTU size
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esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_A_APP_ID].char_handle,
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sizeof(notify_data), notify_data, false);
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}
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}else if (descr_value == 0x0002){
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if (a_property & ESP_GATT_CHAR_PROP_BIT_INDICATE){
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ESP_LOGI(GATTS_TAG, "indicate enable");
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uint8_t indicate_data[15];
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for (int i = 0; i < sizeof(indicate_data); ++i)
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{
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indicate_data[i] = i%0xff;
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}
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//the size of indicate_data[] need less than MTU size
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esp_ble_gatts_send_indicate(gatts_if, param->write.conn_id, gl_profile_tab[PROFILE_A_APP_ID].char_handle,
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sizeof(indicate_data), indicate_data, true);
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}
|
|
}
|
|
else if (descr_value == 0x0000){
|
|
ESP_LOGI(GATTS_TAG, "notify/indicate disable ");
|
|
}else{
|
|
ESP_LOGE(GATTS_TAG, "unknown descr value");
|
|
esp_log_buffer_hex(GATTS_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(GATTS_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(GATTS_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
|
|
break;
|
|
case ESP_GATTS_UNREG_EVT:
|
|
break;
|
|
case ESP_GATTS_CREATE_EVT:
|
|
ESP_LOGI(GATTS_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_TEST_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_demo_char1_val, NULL);
|
|
if (add_char_ret){
|
|
ESP_LOGE(GATTS_TAG, "add char failed, error code =%x",add_char_ret);
|
|
}
|
|
break;
|
|
case ESP_GATTS_ADD_INCL_SRVC_EVT:
|
|
break;
|
|
case ESP_GATTS_ADD_CHAR_EVT: {
|
|
uint16_t length = 0;
|
|
const uint8_t *prf_char;
|
|
|
|
ESP_LOGI(GATTS_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 get_attr_ret = esp_ble_gatts_get_attr_value(param->add_char.attr_handle, &length, &prf_char);
|
|
if (get_attr_ret == ESP_FAIL){
|
|
ESP_LOGE(GATTS_TAG, "ILLEGAL HANDLE");
|
|
}
|
|
|
|
ESP_LOGI(GATTS_TAG, "the gatts demo char length = %x\n", length);
|
|
for(int i = 0; i < length; i++){
|
|
ESP_LOGI(GATTS_TAG, "prf_char[%x] =%x\n",i,prf_char[i]);
|
|
}
|
|
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(GATTS_TAG, "add char descr failed, error code =%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(GATTS_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(GATTS_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));
|
|
/* For the IOS system, please reference the 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
|
|
ESP_LOGI(GATTS_TAG, "ESP_GATTS_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_A_APP_ID].conn_id = param->connect.conn_id;
|
|
//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_TAG, "ESP_GATTS_DISCONNECT_EVT, disconnect reason 0x%x", param->disconnect.reason);
|
|
esp_ble_gap_start_advertising(&adv_params);
|
|
break;
|
|
case ESP_GATTS_CONF_EVT:
|
|
ESP_LOGI(GATTS_TAG, "ESP_GATTS_CONF_EVT, status %d", param->conf.status);
|
|
if (param->conf.status != ESP_GATT_OK){
|
|
esp_log_buffer_hex(GATTS_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(GATTS_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_TEST_B;
|
|
|
|
esp_ble_gatts_create_service(gatts_if, &gl_profile_tab[PROFILE_B_APP_ID].service_id, GATTS_NUM_HANDLE_TEST_B);
|
|
break;
|
|
case ESP_GATTS_READ_EVT: {
|
|
ESP_LOGI(GATTS_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(GATTS_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(GATTS_TAG, "GATT_WRITE_EVT, value len %d, value :", param->write.len);
|
|
esp_log_buffer_hex(GATTS_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(GATTS_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(GATTS_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(GATTS_TAG, "notify/indicate disable ");
|
|
}else{
|
|
ESP_LOGE(GATTS_TAG, "unknown value");
|
|
}
|
|
|
|
}
|
|
}
|
|
example_write_event_env(gatts_if, &b_prepare_write_env, param);
|
|
break;
|
|
}
|
|
case ESP_GATTS_EXEC_WRITE_EVT:
|
|
ESP_LOGI(GATTS_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(GATTS_TAG, "ESP_GATTS_MTU_EVT, MTU %d", param->mtu.mtu);
|
|
break;
|
|
case ESP_GATTS_UNREG_EVT:
|
|
break;
|
|
case ESP_GATTS_CREATE_EVT:
|
|
ESP_LOGI(GATTS_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_TEST_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(GATTS_TAG, "add char failed, error code =%x",add_char_ret);
|
|
}
|
|
break;
|
|
case ESP_GATTS_ADD_INCL_SRVC_EVT:
|
|
break;
|
|
case ESP_GATTS_ADD_CHAR_EVT:
|
|
ESP_LOGI(GATTS_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(GATTS_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(GATTS_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(GATTS_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(GATTS_TAG, "ESP_GATTS_CONF_EVT status %d", param->conf.status);
|
|
if (param->conf.status != ESP_GATT_OK){
|
|
esp_log_buffer_hex(GATTS_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(GATTS_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);
|
|
}
|
|
|
|
void app_main()
|
|
{
|
|
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_TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(ret));
|
|
return;
|
|
}
|
|
|
|
ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
|
|
if (ret) {
|
|
ESP_LOGE(GATTS_TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(ret));
|
|
return;
|
|
}
|
|
ret = esp_bluedroid_init();
|
|
if (ret) {
|
|
ESP_LOGE(GATTS_TAG, "%s init bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
|
|
return;
|
|
}
|
|
ret = esp_bluedroid_enable();
|
|
if (ret) {
|
|
ESP_LOGE(GATTS_TAG, "%s enable bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
|
|
return;
|
|
}
|
|
|
|
ret = esp_ble_gatts_register_callback(gatts_event_handler);
|
|
if (ret){
|
|
ESP_LOGE(GATTS_TAG, "gatts register error, error code = %x", ret);
|
|
return;
|
|
}
|
|
ret = esp_ble_gap_register_callback(gap_event_handler);
|
|
if (ret){
|
|
ESP_LOGE(GATTS_TAG, "gap register error, error code = %x", ret);
|
|
return;
|
|
}
|
|
ret = esp_ble_gatts_app_register(PROFILE_A_APP_ID);
|
|
if (ret){
|
|
ESP_LOGE(GATTS_TAG, "gatts app register error, error code = %x", ret);
|
|
return;
|
|
}
|
|
ret = esp_ble_gatts_app_register(PROFILE_B_APP_ID);
|
|
if (ret){
|
|
ESP_LOGE(GATTS_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_TAG, "set local MTU failed, error code = %x", local_mtu_ret);
|
|
}
|
|
|
|
return;
|
|
}
|