79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
// Copyright 2015-2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/****************************************************************************
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*
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* This file is for iBeacon APIs. It supports both iBeacon encode and decode.
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*
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* iBeacon is a trademark of Apple Inc. Before building devices which use iBeacon technology,
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* visit https://developer.apple.com/ibeacon/ to obtain a license.
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*
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****************************************************************************/
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#include <stdint.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include "esp_gap_ble_api.h"
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#include "esp_ibeacon_api.h"
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const uint8_t uuid_zeros[ESP_UUID_LEN_128] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
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/* For iBeacon packet format, please refer to Apple "Proximity Beacon Specification" doc */
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/* Constant part of iBeacon data */
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esp_ble_ibeacon_head_t ibeacon_common_head = {
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.flags = {0x02, 0x01, 0x06},
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.length = 0x1A,
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.type = 0xFF,
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.company_id = 0x004C,
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.beacon_type = 0x1502
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};
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/* Vendor part of iBeacon data*/
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esp_ble_ibeacon_vendor_t vendor_config = {
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.proximity_uuid = ESP_UUID,
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.major = ENDIAN_CHANGE_U16(ESP_MAJOR), //Major=ESP_MAJOR
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.minor = ENDIAN_CHANGE_U16(ESP_MINOR), //Minor=ESP_MINOR
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.measured_power = 0xC5
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};
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BOOLEAN esp_ble_is_ibeacon_packet (uint8_t *adv_data, uint8_t adv_data_len){
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BOOLEAN result = FALSE;
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if ((adv_data != NULL) && (adv_data_len == 0x1E)){
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if (!memcmp(adv_data, (uint8_t*)&ibeacon_common_head, sizeof(ibeacon_common_head))){
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result = TRUE;
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}
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}
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return result;
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}
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esp_err_t esp_ble_config_ibeacon_data (esp_ble_ibeacon_vendor_t *vendor_config, esp_ble_ibeacon_t *ibeacon_adv_data){
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if ((vendor_config == NULL) || (ibeacon_adv_data == NULL) || (!memcmp(vendor_config->proximity_uuid, uuid_zeros, sizeof(uuid_zeros)))){
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return ESP_ERR_INVALID_ARG;
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}
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memcpy(&ibeacon_adv_data->ibeacon_head, &ibeacon_common_head, sizeof(esp_ble_ibeacon_head_t));
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memcpy(&ibeacon_adv_data->ibeacon_vendor, vendor_config, sizeof(esp_ble_ibeacon_vendor_t));
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return ESP_OK;
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}
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