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// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/****************************************************************************
*
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* This file is for iBeacon demo . It supports both iBeacon sender and receiver
* which is distinguished by macros IBEACON_SENDER and IBEACON_RECEIVER ,
*
* iBeacon is a trademark of Apple Inc . Before building devices which use iBeacon technology ,
* visit https : //developer.apple.com/ibeacon/ to obtain a license.
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*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# include <stdint.h>
# include <string.h>
# include <stdbool.h>
# include <stdio.h>
# include "controller.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"
# include "esp_gattc_api.h"
# include "esp_gatt_defs.h"
# include "esp_bt_main.h"
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# include "esp_ibeacon_api.h"
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static const char * DEMO_TAG = " IBEACON_DEMO " ;
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extern esp_ble_ibeacon_vendor_t vendor_config ;
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///Declare static functions
static void esp_gap_cb ( esp_gap_ble_cb_event_t event , esp_ble_gap_cb_param_t * param ) ;
# if (IBEACON_MODE == IBEACON_RECEIVER)
static esp_ble_scan_params_t ble_scan_params = {
. scan_type = BLE_SCAN_TYPE_ACTIVE ,
. own_addr_type = BLE_ADDR_TYPE_PUBLIC ,
. scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL ,
. scan_interval = 0x50 ,
. scan_window = 0x30
} ;
# elif (IBEACON_MODE == IBEACON_SENDER)
static esp_ble_adv_params_t ble_adv_params = {
. adv_int_min = 0x20 ,
. adv_int_max = 0x40 ,
. adv_type = ADV_TYPE_NONCONN_IND ,
. own_addr_type = BLE_ADDR_TYPE_PUBLIC ,
. channel_map = ADV_CHNL_ALL ,
. adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY ,
} ;
# endif
static void esp_gap_cb ( esp_gap_ble_cb_event_t event , esp_ble_gap_cb_param_t * param )
{
switch ( event ) {
case ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT : {
# if (IBEACON_MODE == IBEACON_SENDER)
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esp_ble_gap_start_advertising ( & ble_adv_params ) ;
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# endif
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break ;
}
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case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT : {
# if (IBEACON_MODE == IBEACON_RECEIVER)
//the unit of the duration is second, 0 means scan permanently
uint32_t duration = 0 ;
esp_ble_gap_start_scanning ( duration ) ;
# endif
break ;
}
case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT :
//scan start complete event to indicate scan start successfully or failed
if ( param - > scan_start_cmpl . status ! = ESP_BT_STATUS_SUCCESS ) {
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ESP_LOGE ( DEMO_TAG , " Scan start failed " ) ;
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}
break ;
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case ESP_GAP_BLE_ADV_START_COMPLETE_EVT :
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//adv start complete event to indicate adv start successfully or failed
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if ( param - > adv_start_cmpl . status ! = ESP_BT_STATUS_SUCCESS ) {
ESP_LOGE ( DEMO_TAG , " Adv start failed " ) ;
}
break ;
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case ESP_GAP_BLE_SCAN_RESULT_EVT : {
esp_ble_gap_cb_param_t * scan_result = ( esp_ble_gap_cb_param_t * ) param ;
switch ( scan_result - > scan_rst . search_evt ) {
case ESP_GAP_SEARCH_INQ_RES_EVT :
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/* Search for BLE iBeacon Packet */
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if ( esp_ble_is_ibeacon_packet ( scan_result - > scan_rst . ble_adv , scan_result - > scan_rst . adv_data_len ) ) {
esp_ble_ibeacon_t * ibeacon_data = ( esp_ble_ibeacon_t * ) ( scan_result - > scan_rst . ble_adv ) ;
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ESP_LOGI ( DEMO_TAG , " ----------iBeacon Found---------- " ) ;
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esp_log_buffer_hex ( " IBEACON_DEMO: Device address: " , scan_result - > scan_rst . bda , BD_ADDR_LEN ) ;
esp_log_buffer_hex ( " IBEACON_DEMO: Proximity UUID: " , ibeacon_data - > ibeacon_vendor . proximity_uuid , ESP_UUID_LEN_128 ) ;
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uint16_t major = ENDIAN_CHANGE_U16 ( ibeacon_data - > ibeacon_vendor . major ) ;
uint16_t minor = ENDIAN_CHANGE_U16 ( ibeacon_data - > ibeacon_vendor . minor ) ;
ESP_LOGI ( DEMO_TAG , " Major: 0x%04x (%d) " , major , major ) ;
ESP_LOGI ( DEMO_TAG , " Minor: 0x%04x (%d) " , minor , minor ) ;
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ESP_LOGI ( DEMO_TAG , " Measured power (RSSI at a 1m distance):%d dbm " , ibeacon_data - > ibeacon_vendor . measured_power ) ;
ESP_LOGI ( DEMO_TAG , " RSSI of packet:%d dbm " , scan_result - > scan_rst . rssi ) ;
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}
break ;
default :
break ;
}
break ;
}
case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT :
if ( param - > scan_stop_cmpl . status ! = ESP_BT_STATUS_SUCCESS ) {
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ESP_LOGE ( DEMO_TAG , " Scan stop failed " ) ;
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}
else {
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ESP_LOGI ( DEMO_TAG , " Stop scan successfully " ) ;
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}
break ;
case ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT :
if ( param - > adv_stop_cmpl . status ! = ESP_BT_STATUS_SUCCESS ) {
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ESP_LOGE ( DEMO_TAG , " Adv stop failed " ) ;
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}
else {
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ESP_LOGI ( DEMO_TAG , " Stop adv successfully " ) ;
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}
break ;
default :
break ;
}
}
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void ble_ibeacon_appRegister ( void )
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{
esp_err_t status ;
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ESP_LOGI ( DEMO_TAG , " register callback " ) ;
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//register the scan callback function to the gap module
if ( ( status = esp_ble_gap_register_callback ( esp_gap_cb ) ) ! = ESP_OK ) {
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ESP_LOGE ( DEMO_TAG , " gap register error, error code = %x " , status ) ;
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return ;
}
}
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void ble_ibeacon_init ( void )
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{
esp_bluedroid_init ( ) ;
esp_bluedroid_enable ( ) ;
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ble_ibeacon_appRegister ( ) ;
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}
void app_main ( )
{
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ESP_ERROR_CHECK ( nvs_flash_init ( ) ) ;
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT ( ) ;
esp_bt_controller_init ( & bt_cfg ) ;
esp_bt_controller_enable ( ESP_BT_MODE_BTDM ) ;
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ble_ibeacon_init ( ) ;
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/* set scan parameters */
# if (IBEACON_MODE == IBEACON_RECEIVER)
esp_ble_gap_set_scan_params ( & ble_scan_params ) ;
# elif (IBEACON_MODE == IBEACON_SENDER)
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esp_ble_ibeacon_t ibeacon_adv_data ;
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esp_err_t status = esp_ble_config_ibeacon_data ( & vendor_config , & ibeacon_adv_data ) ;
if ( status = = ESP_OK ) {
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esp_ble_gap_config_adv_data_raw ( ( uint8_t * ) & ibeacon_adv_data , sizeof ( ibeacon_adv_data ) ) ;
}
else {
ESP_LOGE ( DEMO_TAG , " Config iBeacon data failed, status =0x%x \n " , status ) ;
}
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# endif
}