DigitalInfinity/ESP32-PaxCounter
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blescan.cpp code refactoring

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This commit is contained in:
Klaus K Wilting 2018-05-20 18:31:41 +02:00
parent 30178bbf43
commit ed25ec1e92
1 changed files with 34 additions and 89 deletions
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117
src/blecsan.cpp
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@ -17,7 +17,7 @@ https://github.com/nkolban/esp32-snippets/tree/master/BLE/scanner
#define BT_BD_ADDR_HEX(addr) addr[0], addr[1], addr[2], addr[3], addr[4], addr[5] #define BT_BD_ADDR_HEX(addr) addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]
// local Tag for logging // local Tag for logging
static const char *TAG = "bt_loop"; static const char *TAG = "blescan";
// defined in macsniff.cpp // defined in macsniff.cpp
bool mac_add(uint8_t *paddr, int8_t rssi, bool sniff_type); bool mac_add(uint8_t *paddr, int8_t rssi, bool sniff_type);
@ -100,22 +100,14 @@ IRAM_ATTR static void gap_callback_handler(esp_gap_ble_cb_event_t event, esp_ble
{ {
case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT: case ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT:
// restart scan // restart scan
status = esp_ble_gap_start_scanning(BLESCANTIME); ESP_ERROR_CHECK(esp_ble_gap_start_scanning(BLESCANTIME));
if (status != ESP_OK)
{
ESP_LOGE(TAG, "esp_ble_gap_start_scanning: rc=%d", status);
}
break; break;
case ESP_GAP_BLE_SCAN_RESULT_EVT: case ESP_GAP_BLE_SCAN_RESULT_EVT:
// evaluate scan results // evaluate scan results
if ( p->scan_rst.search_evt == ESP_GAP_SEARCH_INQ_CMPL_EVT) // Inquiry complete, scan is done if ( p->scan_rst.search_evt == ESP_GAP_SEARCH_INQ_CMPL_EVT) // Inquiry complete, scan is done
{ // restart scan { // restart scan
status = esp_ble_gap_start_scanning (BLESCANTIME); ESP_ERROR_CHECK(esp_ble_gap_start_scanning(BLESCANTIME));
if (status != ESP_OK)
{
ESP_LOGE(TAG, "esp_ble_gap_start_scanning: rc=%d", status);
}
return; return;
} }
@ -140,7 +132,6 @@ IRAM_ATTR static void gap_callback_handler(esp_gap_ble_cb_event_t event, esp_ble
#endif #endif
// add this device and show new count total if it was not previously added // add this device and show new count total if it was not previously added
if (cfg.blescan) // count only if BLE scan is enabled
mac_add((uint8_t *) p->scan_rst.bda, p->scan_rst.rssi, MAC_SNIFF_BLE); mac_add((uint8_t *) p->scan_rst.bda, p->scan_rst.rssi, MAC_SNIFF_BLE);
/* to be improved in vendorfilter if: /* to be improved in vendorfilter if:
@ -180,20 +171,12 @@ IRAM_ATTR static void gap_callback_handler(esp_gap_ble_cb_event_t event, esp_ble
} // gap_callback_handler } // gap_callback_handler
esp_err_t register_ble_functionality(void) esp_err_t register_ble_callback(void) {
{
esp_err_t status;
ESP_LOGI(TAG, "Register GAP callback"); ESP_LOGI(TAG, "Register GAP callback");
// This function is called to occur gap event, such as scan result. // This function is called to occur gap event, such as scan result.
//register the scan callback function to the gap module //register the scan callback function to the gap module
status = esp_ble_gap_register_callback(&gap_callback_handler); ESP_ERROR_CHECK(esp_ble_gap_register_callback(&gap_callback_handler));
if (status != ESP_OK)
{
ESP_LOGE(TAG, "esp_ble_gap_register_callback: rc=%d", status);
return ESP_FAIL;
}
static esp_ble_scan_params_t ble_scan_params = static esp_ble_scan_params_t ble_scan_params =
{ {
@ -207,6 +190,7 @@ esp_err_t register_ble_functionality(void)
#else #else
.scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL, .scan_filter_policy = BLE_SCAN_FILTER_ALLOW_ALL,
#endif #endif
.scan_interval = (uint16_t) (cfg.blescantime * 10 / 0.625), // Time = N * 0.625 msec .scan_interval = (uint16_t) (cfg.blescantime * 10 / 0.625), // Time = N * 0.625 msec
.scan_window = (uint16_t) (BLESCANWINDOW / 0.625) // Time = N * 0.625 msec .scan_window = (uint16_t) (BLESCANWINDOW / 0.625) // Time = N * 0.625 msec
}; };
@ -214,78 +198,39 @@ esp_err_t register_ble_functionality(void)
ESP_LOGI(TAG, "Set GAP scan parameters"); ESP_LOGI(TAG, "Set GAP scan parameters");
// This function is called to set scan parameters. // This function is called to set scan parameters.
status = esp_ble_gap_set_scan_params(&ble_scan_params); ESP_ERROR_CHECK(esp_ble_gap_set_scan_params(&ble_scan_params));
if (status != ESP_OK)
{
ESP_LOGE(TAG, "esp_ble_gap_set_scan_params: rc=%d", status);
return ESP_FAIL;
}
return ESP_OK; return ESP_OK;
}
} // register_ble_callback
void start_BLEscan(void){
ESP_LOGI(TAG, "Initializing bluetooth scanner ...");
// Initialize BT controller to allocate task and other resource.
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
bt_cfg.controller_task_stack_size = BLESTACKSIZE; // set BT stack size to value configured in paxcounter.conf
ESP_ERROR_CHECK(esp_bt_controller_init(&bt_cfg));
ESP_ERROR_CHECK(esp_bt_controller_enable(ESP_BT_MODE_BTDM));
// Init and alloc the resource for bluetooth stack, must be done prior to every bluetooth stuff
ESP_ERROR_CHECK(esp_bluedroid_init());
ESP_ERROR_CHECK(esp_bluedroid_enable());
// Register callback function for capturing bluetooth packets
ESP_ERROR_CHECK(register_ble_callback());
ESP_LOGI(TAG, "Bluetooth scanner started");
} // start_BLEscan
void stop_BLEscan(void){ void stop_BLEscan(void){
ESP_LOGI(TAG, "Shutting BT Down ..."); ESP_LOGI(TAG, "Shutting down bluetooth scanner ...");
ESP_ERROR_CHECK(esp_ble_gap_register_callback(NULL)); ESP_ERROR_CHECK(esp_ble_gap_register_callback(NULL));
ESP_ERROR_CHECK(esp_bluedroid_disable()); ESP_ERROR_CHECK(esp_bluedroid_disable());
ESP_ERROR_CHECK(esp_bluedroid_deinit()); ESP_ERROR_CHECK(esp_bluedroid_deinit());
ESP_ERROR_CHECK(esp_bt_controller_disable()); ESP_ERROR_CHECK(esp_bt_controller_disable());
ESP_ERROR_CHECK(esp_bt_controller_deinit()); ESP_ERROR_CHECK(esp_bt_controller_deinit());
} ESP_LOGI(TAG, "Bluetooth scanner stopped");
} // stop_BLEscan
void start_BLEscan(void){
ESP_LOGI(TAG, "Initializing bluetooth scanner ...");
esp_err_t status;
// Initialize BT controller to allocate task and other resource.
ESP_LOGI(TAG, "Enabling Bluetooth Controller");
esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
bt_cfg.controller_task_stack_size = BLESTACKSIZE; // set BT stack size to value configured in paxcounter.conf
if (esp_bt_controller_init(&bt_cfg) != ESP_OK)
{
ESP_LOGE(TAG, "Bluetooth controller initialize failed");
goto end;
}
// Enable BT controller
if (esp_bt_controller_enable(ESP_BT_MODE_BTDM) != ESP_OK)
{
ESP_LOGE(TAG, "Bluetooth controller enable failed");
goto end;
}
//esp_bt_controller_mem_release(ESP_BT_MODE_BTDM); // gives 30KB more RAM for heap
// Init and alloc the resource for bluetooth, must be prior to every bluetooth stuff
ESP_LOGI(TAG, "Init Bluetooth stack");
status = esp_bluedroid_init();
if (status != ESP_OK)
{
ESP_LOGE(TAG, "%s init bluetooth failed\n", __func__);
goto end;
}
// Enable bluetooth, must after esp_bluedroid_init()
status = esp_bluedroid_enable();
if (status != ESP_OK)
{
ESP_LOGE(TAG, "%s enable bluetooth failed\n", __func__);
goto end;
}
ESP_LOGI(TAG, "Register BLE functionality");
status = register_ble_functionality();
if (status != ESP_OK)
{
ESP_LOGE(TAG, "Register BLE functionality failed");
goto end;
}
end:
ESP_LOGI(TAG, "Bluetooth scanner initialization finished");
} // start_BLEscan
#endif // BLECOUNTER #endif // BLECOUNTER