feat: Add BLE ADV Scanner

firmware/components/ble_scann/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "ble_scann.c"
+PRIV_REQUIRES bt bt_gattc uart_sender
+INCLUDE_DIRS ".")

firmware/components/ble_scann/ble_scann.c

@@ -0,0 +1,97 @@
+#include "ble_scann.h"
+#include "bt_gattc.h"
+#include "esp_bt.h"
+#include "esp_log.h"
+#include "inttypes.h"
+#include "uart_sender.h"
+
+static TaskHandle_t ble_scan_timer_task = NULL;
+static bluetooth_traker_scanner_cb_t display_records_cb = NULL;
+static int ble_scan_duration = 0;
+static bool ble_scanner_active = false;
+
+static void task_scanner_timer();
+static void handle_bt_gapc_events(esp_gap_ble_cb_event_t event_type,
+                                  esp_ble_gap_cb_param_t* param);
+
+void ble_scanner_begin() {
+  // #if !defined(CONFIG_TRACKERS_SCANNER_DEBUG)
+  //   esp_log_level_set(TAG_BLE_CLIENT_MODULE, ESP_LOG_NONE);
+  // #endif
+
+  gattc_scan_params_t scan_params = {
+      .remote_filter_service_uuid =
+          bt_gattc_set_default_ble_filter_service_uuid(),
+      .remote_filter_char_uuid = bt_gattc_set_default_ble_filter_char_uuid(),
+      .notify_descr_uuid = bt_gattc_set_default_ble_notify_descr_uuid(),
+      .ble_scan_params = bt_gattc_set_default_ble_scan_params()};
+  bt_gattc_set_ble_scan_params(&scan_params);
+  bt_client_event_cb_t event_cb = {.handler_gattc_cb = NULL,
+                                   .handler_gapc_cb = handle_bt_gapc_events};
+  bt_gattc_set_cb(event_cb);
+  bt_gattc_task_begin();
+  ble_scanner_active = true;
+  xTaskCreate(task_scanner_timer, "ble_scanner", 4096, NULL, 5,
+              &ble_scan_timer_task);
+}
+
+static void handle_bt_gapc_events(esp_gap_ble_cb_event_t event_type,
+                                  esp_ble_gap_cb_param_t* param) {
+  switch (event_type) {
+    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:
+          if (!ble_scanner_active) {
+            break;
+          }
+          uart_sender_send_packet(UART_SENDER_PACKET_TYPE_BLE,
+                                  scan_result->scan_rst.ble_adv,
+                                  scan_result->scan_rst.adv_data_len);
+          ESP_LOGI(TAG_BLE_CLIENT_MODULE, "New ADV found");
+          break;
+        case ESP_GAP_SEARCH_INQ_CMPL_EVT:
+          break;
+        default:
+          break;
+      }
+      break;
+    default:
+      break;
+  }
+}
+
+void ble_scanner_register_cb(bluetooth_traker_scanner_cb_t callback) {
+  display_records_cb = callback;
+}
+
+static void task_scanner_timer() {
+  ESP_LOGI(TAG_BLE_CLIENT_MODULE, "Trackers task started");
+  ble_scan_duration = 0;
+  while (ble_scanner_active) {
+    if (ble_scan_duration >= SCANNER_SCAN_DURATION) {
+      ESP_LOGI(TAG_BLE_CLIENT_MODULE, "Trackers task stopped");
+      ble_scanner_stop();
+    }
+    vTaskDelay(1000 / portTICK_PERIOD_MS);
+  }
+}
+
+void ble_scanner_stop() {
+  ble_scanner_active = false;
+  ESP_LOGI(TAG_BLE_CLIENT_MODULE, "Trackers task stopped");
+  if (ble_scan_timer_task != NULL) {
+    ESP_LOGI(TAG_BLE_CLIENT_MODULE, "Trackers task stopped");
+    vTaskSuspend(ble_scan_timer_task);
+  }
+  ESP_LOGI(TAG_BLE_CLIENT_MODULE, "Trackers task stopped");
+  ble_scan_duration = 0;
+  vTaskDelete(NULL);
+  // TODO: When this is called, the BLE stopping bricks the device
+  // bt_gattc_task_stop();
+  ESP_LOGI(TAG_BLE_CLIENT_MODULE, "Trackers task stopped");
+}
+
+bool ble_scanner_is_active() {
+  return ble_scanner_active;
+}

firmware/components/ble_scann/ble_scann.h

@@ -0,0 +1,75 @@
+#include "esp_bt.h"
+#include "esp_bt_defs.h"
+#include "esp_bt_main.h"
+#include "esp_gap_ble_api.h"
+#include "esp_gatt_common_api.h"
+#include "esp_gattc_api.h"
+#include "esp_gatts_api.h"
+#ifndef BLE_SCANNER_H
+  #define BLE_SCANNER_H
+  #define TAG_BLE_CLIENT_MODULE           "scanner_module:main"
+  #define SCANNER_REMOTE_SERVICE_UUID     0x00FF
+  #define SCANNER_REMOTE_NOTIFY_CHAR_UUID 0xFF01
+  #define SCANNER_PROFILE_NUM             1
+  #define SCANNER_PROFILE_A_APP_ID        0
+  #define SCANNER_INVALID_HANDLE          0
+  #define SCANNER_SCAN_DURATION           240
+
+/**
+ * @brief Structure to store the tracker profile
+ *
+ */
+typedef struct {
+  int rssi;
+  char* name;
+  char* vendor;
+  uint8_t mac_address[6];
+  uint8_t adv_data[31];
+  uint8_t adv_data_length;
+  bool is_tracker;
+} device_profile;
+
+/**
+ * @brief Structure to store the tracker advertisement comparison
+ *
+ */
+typedef struct {
+  uint8_t adv_cmp[4];
+  char* name;
+  char* vendor;
+} scanner_adv_cmp_t;
+
+/**
+ * @brief Callback to handle the bluetooth scanner
+ *
+ * @param record The tracker profile record
+ */
+typedef void (*bluetooth_traker_scanner_cb_t)(device_profile record);
+
+/**
+ * @brief Register the callback to handle the bluetooth scanner
+ *
+ * @param cb The callback to handle the bluetooth scanner
+ */
+void ble_scanner_register_cb(bluetooth_traker_scanner_cb_t cb);
+
+/**
+ * @brief Start the bluetooth scanner
+ *
+ */
+void ble_scanner_begin();
+
+/**
+ * @brief Stop the bluetooth scanner
+ *
+ */
+void ble_scanner_stop();
+
+/**
+ * @brief Check if the bluetooth scanner is active
+ *
+ * @return true The bluetooth scanner is active
+ * @return false The bluetooth scanner is not active
+ */
+bool ble_scanner_is_active();
+#endif  // BLE_SCANNER_H

firmware/components/uart_sender/uart_sender.h

@@ -5,7 +5,7 @@
 
 typedef enum {
   UART_SENDER_PACKET_TYPE_ZIGBEE = 0,
-  UART_SENDER_PACKET_TYPE_BT,
+  UART_SENDER_PACKET_TYPE_BLE,
   UART_SENDER_PACKET_TYPE_WIFI,
   UART_SENDER_PACKET_TYPE_THREAD,
 } uart_sender_packet_type;

firmware/main/main.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include "apps/ble/hid_device/hid_module.h"
 #include "apps/ble/trackers/trackers_module.h"
+#include "ble_scann.h"
 #include "buzzer.h"
 #include "cat_console.h"
 #include "esp_log.h"
@@ -35,6 +36,7 @@ void app_main() {
   buzzer_begin(BUZZER_PIN);
   sd_card_begin();
   flash_fs_begin(flash_fs_screens_handler);
+  ble_scanner_begin();
   keyboard_module_begin();
   menus_module_begin();
   leds_off();