mirror of https://github.com/Lurkars/esp-ena.git
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
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#include <stdio.h>
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#include <time.h>
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#include "esp_log.h"
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#include "ena-detection.h"
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#include "ena-bluetooth-scan.h"
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static int scan_status = ENA_SCAN_STATUS_NOT_SCANNING;
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static esp_ble_scan_params_t ena_scan_params = {
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.scan_type = BLE_SCAN_TYPE_ACTIVE,
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.own_addr_type = BLE_ADDR_TYPE_RANDOM,
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.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
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.scan_interval = 0x50, // don't know good parameters, just copied
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.scan_window = 0x30, // don't know good parameters, just copied
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.scan_duplicate = BLE_SCAN_DUPLICATE_ENABLE,
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};
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void ena_bluetooth_scan_event_callback(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
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{
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esp_ble_gap_cb_param_t *p = (esp_ble_gap_cb_param_t *)param;
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switch (event)
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{
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case ESP_GAP_BLE_SCAN_START_COMPLETE_EVT:
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ESP_LOGI(ENA_SCAN_LOG, "start scanning...");
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break;
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case ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT:
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ESP_LOGI(ENA_SCAN_LOG, "stopped scanning...");
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ena_detections_temp_refresh((uint32_t)time(NULL));
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break;
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case ESP_GAP_BLE_SCAN_RESULT_EVT:
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if (p->scan_rst.search_evt == ESP_GAP_SEARCH_INQ_RES_EVT)
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{
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// check for ENA Service UUID:
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if (p->scan_rst.ble_adv[0] == 0x3 && p->scan_rst.ble_adv[1] == 0x3 && p->scan_rst.ble_adv[2] == 0x6f && p->scan_rst.ble_adv[3] == 0xfd)
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{
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uint8_t rpi[ENA_KEY_LENGTH] = {0};
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for (int i = 0; i < ENA_KEY_LENGTH; i++)
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{
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rpi[i] = p->scan_rst.ble_adv[8 + i];
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}
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uint8_t aem[ENA_AEM_METADATA_LENGTH] = {0};
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for (int i = 0; i < ENA_AEM_METADATA_LENGTH; i++)
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{
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aem[i] = p->scan_rst.ble_adv[8 + ENA_KEY_LENGTH + i];
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}
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ena_detection((uint32_t)time(NULL), rpi, aem, p->scan_rst.rssi);
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}
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}
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else if (p->scan_rst.search_evt == ESP_GAP_SEARCH_INQ_CMPL_EVT)
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{
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scan_status = ENA_SCAN_STATUS_NOT_SCANNING;
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ena_detections_temp_refresh((uint32_t)time(NULL));
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ESP_LOGI(ENA_SCAN_LOG, "finished scanning...");
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}
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break;
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default:
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// nothing
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break;
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}
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}
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void ena_bluetooth_scan_init(void)
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{
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ESP_ERROR_CHECK(esp_ble_gap_set_scan_params(&ena_scan_params));
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ESP_ERROR_CHECK(esp_ble_gap_register_callback(ena_bluetooth_scan_event_callback));
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// init temporary detections
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ena_detections_temp_refresh((uint32_t)time(NULL));
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}
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void ena_bluetooth_scan_start(uint32_t duration)
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{
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scan_status = ENA_SCAN_STATUS_SCANNING;
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ESP_ERROR_CHECK(esp_ble_gap_start_scanning(duration));
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}
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void ena_bluetooth_scan_stop(void)
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{
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scan_status = ENA_SCAN_STATUS_WAITING;
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ESP_ERROR_CHECK(esp_ble_gap_stop_scanning());
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}
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int ena_bluetooth_scan_get_status(void)
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{
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return scan_status;
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}
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