mirror of
https://github.com/Valeh2012/PersonalVotingMachine
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346 lines
12 KiB
C++
346 lines
12 KiB
C++
/**
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* @file BLEModule.cpp
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* @brief BLEModule implementation file
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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_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_gatt_common_api.h"
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#include "module.h"
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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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#define GATTS_TAG "GATTS"
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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_RANDOM,
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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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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 = sizeof(adv_service_uuid128),
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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 = sizeof(adv_service_uuid128),
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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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#define adv_config_flag (1 << 0)
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#define scan_rsp_config_flag (1 << 1)
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static char *esp_key_type_to_str(esp_ble_key_type_t key_type){
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char *key_str = NULL;
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switch(key_type) {
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case ESP_LE_KEY_NONE:
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key_str = "ESP_LE_KEY_NONE";
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break;
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case ESP_LE_KEY_PENC:
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key_str = "ESP_LE_KEY_PENC";
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break;
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case ESP_LE_KEY_PID:
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key_str = "ESP_LE_KEY_PID";
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break;
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case ESP_LE_KEY_PCSRK:
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key_str = "ESP_LE_KEY_PCSRK";
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break;
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case ESP_LE_KEY_PLK:
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key_str = "ESP_LE_KEY_PLK";
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break;
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case ESP_LE_KEY_LLK:
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key_str = "ESP_LE_KEY_LLK";
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break;
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case ESP_LE_KEY_LENC:
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key_str = "ESP_LE_KEY_LENC";
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break;
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case ESP_LE_KEY_LID:
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key_str = "ESP_LE_KEY_LID";
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break;
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case ESP_LE_KEY_LCSRK:
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key_str = "ESP_LE_KEY_LCSRK";
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break;
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default:
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key_str = "INVALID BLE KEY TYPE";
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break;
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}
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return key_str;
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}
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static char *esp_auth_req_to_str(esp_ble_auth_req_t auth_req){
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char *auth_str = NULL;
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switch(auth_req) {
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case ESP_LE_AUTH_NO_BOND:
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auth_str = "ESP_LE_AUTH_NO_BOND";
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break;
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case ESP_LE_AUTH_BOND:
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auth_str = "ESP_LE_AUTH_BOND";
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break;
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case ESP_LE_AUTH_REQ_MITM:
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auth_str = "ESP_LE_AUTH_REQ_MITM";
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break;
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case ESP_LE_AUTH_REQ_BOND_MITM:
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auth_str = "ESP_LE_AUTH_REQ_BOND_MITM";
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break;
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case ESP_LE_AUTH_REQ_SC_ONLY:
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auth_str = "ESP_LE_AUTH_REQ_SC_ONLY";
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break;
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case ESP_LE_AUTH_REQ_SC_BOND:
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auth_str = "ESP_LE_AUTH_REQ_SC_BOND";
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break;
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case ESP_LE_AUTH_REQ_SC_MITM:
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auth_str = "ESP_LE_AUTH_REQ_SC_MITM";
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break;
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case ESP_LE_AUTH_REQ_SC_MITM_BOND:
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auth_str = "ESP_LE_AUTH_REQ_SC_MITM_BOND";
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break;
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default:
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auth_str = "INVALID BLE AUTH REQ";
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break;
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}
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return auth_str;
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}
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/**
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* @brief BLE GAP server event handler
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*
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* Allows to connect/disconnect bluetooth devices
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*
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* @param event gap event fired when connection state changes
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* @param param event parameters
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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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switch (event) { //! * look for event type
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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(BLEModule::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(BLEModule::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); //! * start advertising bluetooth profile to nearby devices after advertisement parameters set
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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); //! * start advertising bluetooth profile to nearby devices after nearby devices scanned
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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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//! - advertising stop complete event to indicate advertising stop successfully or failed
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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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} 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_PASSKEY_REQ_EVT: /* passkey request event */
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ESP_LOGI(GATTS_TAG, "ESP_GAP_BLE_PASSKEY_REQ_EVT");
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/* Call the following function to input the passkey which is displayed on the remote device */
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esp_ble_passkey_reply(param->ble_security.ble_req.bd_addr, true, 0x00);
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break;
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case ESP_GAP_BLE_NC_REQ_EVT:
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/* The app will receive this evt when the IO has DisplayYesNO capability and the peer device IO also has DisplayYesNo capability.
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show the passkey number to the user to confirm it with the number displayed by peer device. */
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esp_ble_confirm_reply(param->ble_security.ble_req.bd_addr, true);
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ESP_LOGI(GATTS_TAG, "ESP_GAP_BLE_NC_REQ_EVT, the passkey Notify number:%d", param->ble_security.key_notif.passkey);
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break;
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case ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT: //! * handle event fired when connection params change
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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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case ESP_GAP_BLE_PASSKEY_NOTIF_EVT: ///the app will receive this evt when the IO has Output capability and the peer device IO has Input capability.
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///show the passkey number to the user to input it in the peer device.
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ESP_LOGI(GATTS_TAG, "The passkey Notify number:%06d", param->ble_security.key_notif.passkey);
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break;
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case ESP_GAP_BLE_KEY_EVT:
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//shows the ble key info share with peer device to the user.
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ESP_LOGI(GATTS_TAG, "key type = %s", esp_key_type_to_str(param->ble_security.ble_key.key_type));
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break;
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case ESP_GAP_BLE_SEC_REQ_EVT:
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/* send the positive (true) security response to the peer device to accept the security request.
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If not accept the security request, should send the security response with negative(false) accept value*/
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esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
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break;
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case ESP_GAP_BLE_AUTH_CMPL_EVT: {
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esp_bd_addr_t bd_addr;
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memcpy(bd_addr, param->ble_security.auth_cmpl.bd_addr, sizeof(esp_bd_addr_t));
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ESP_LOGI(GATTS_TAG, "remote BD_ADDR: %08x%04x",\
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(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
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(bd_addr[4] << 8) + bd_addr[5]);
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ESP_LOGI(GATTS_TAG, "address type = %d", param->ble_security.auth_cmpl.addr_type);
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ESP_LOGI(GATTS_TAG, "pair status = %s",param->ble_security.auth_cmpl.success ? "success" : "fail");
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if(!param->ble_security.auth_cmpl.success) {
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ESP_LOGI(GATTS_TAG, "fail reason = 0x%x",param->ble_security.auth_cmpl.fail_reason);
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} else {
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ESP_LOGI(GATTS_TAG, "auth mode = %s",esp_auth_req_to_str(param->ble_security.auth_cmpl.auth_mode));
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}
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// show_bonded_devices();
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break;
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}
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case ESP_GAP_BLE_REMOVE_BOND_DEV_COMPLETE_EVT: {
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ESP_LOGD(GATTS_TAG, "ESP_GAP_BLE_REMOVE_BOND_DEV_COMPLETE_EVT status = %d", param->remove_bond_dev_cmpl.status);
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ESP_LOGI(GATTS_TAG, "ESP_GAP_BLE_REMOVE_BOND_DEV");
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ESP_LOGI(GATTS_TAG, "-----ESP_GAP_BLE_REMOVE_BOND_DEV----");
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esp_log_buffer_hex(GATTS_TAG, (void *)param->remove_bond_dev_cmpl.bd_addr, sizeof(esp_bd_addr_t));
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ESP_LOGI(GATTS_TAG, "------------------------------------");
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break;
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}
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case ESP_GAP_BLE_SET_LOCAL_PRIVACY_COMPLETE_EVT:
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if (param->local_privacy_cmpl.status != ESP_BT_STATUS_SUCCESS){
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ESP_LOGE(GATTS_TAG, "config local privacy failed, error status = %x", param->local_privacy_cmpl.status);
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break;
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}
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//config adv data
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esp_err_t ret;
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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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break;
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default:
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break;
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}
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}
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BLEModule::BLEModule(){
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this->adv = &adv_params;
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}
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esp_err_t BLEModule::init(){
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ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT)); //! * start Bluetooth Mode (turn on bluetooth)
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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esp_err_t ret = esp_bt_controller_init(&bt_cfg); //! * initialize low-level Bluetooth controller
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if (ret) {
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ESP_LOGE(TAG, "%s initialize controller failed: %s\n", __func__, esp_err_to_name(ret));
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return ret;
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}
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ret = esp_bt_controller_enable(ESP_BT_MODE_BLE); //! * enable Bluetooth Low Energy
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if (ret) {
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ESP_LOGE(TAG, "%s enable controller failed: %s\n", __func__, esp_err_to_name(ret));
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return ret;
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}
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ret = esp_bluedroid_init(); //! * initialize Bluedroid api
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if (ret) {
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ESP_LOGE(TAG, "%s init bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
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return ret;
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}
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ret = esp_bluedroid_enable(); //! * enable Bluedroid api
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if (ret) {
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ESP_LOGE(TAG, "%s enable bluetooth failed: %s\n", __func__, esp_err_to_name(ret));
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return ret;
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}
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ret = esp_ble_gap_register_callback(gap_event_handler); //! * register GAP event handler
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if (ret){
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ESP_LOGE(TAG, "gap register error, error code = %x", ret);
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return ret;
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}
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return ESP_OK;
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}
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esp_err_t BLEModule::deinit(){
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esp_err_t ret;
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ret = esp_bluedroid_disable(); //! * disable Bluedroid api
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if(ret) return ret;
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ret = esp_bluedroid_deinit(); //! * deinitialize Bluedroid api
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if(ret) return ret;
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ret = esp_bt_controller_disable(); //! * disable bluetooth controller
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if(ret) return ret;
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ret = esp_bt_controller_deinit(); //! * deinitialize bluetooth controller (turn off)
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if(ret) return ret;
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return ESP_OK;
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}
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