Bluetooth Proxy active connections (#3817)

esphome/components/esp32_ble_client/ble_service.cpp

@@ -0,0 +1,66 @@
+#include "ble_service.h"
+#include "ble_client_base.h"
+
+#include "esphome/core/log.h"
+
+#ifdef USE_ESP32
+
+namespace esphome {
+namespace esp32_ble_client {
+
+static const char *const TAG = "esp32_ble_client.service";
+
+BLECharacteristic *BLEService::get_characteristic(espbt::ESPBTUUID uuid) {
+  for (auto &chr : this->characteristics) {
+    if (chr->uuid == uuid)
+      return chr;
+  }
+  return nullptr;
+}
+
+BLECharacteristic *BLEService::get_characteristic(uint16_t uuid) {
+  return this->get_characteristic(espbt::ESPBTUUID::from_uint16(uuid));
+}
+
+BLEService::~BLEService() {
+  for (auto &chr : this->characteristics)
+    delete chr;  // NOLINT(cppcoreguidelines-owning-memory)
+}
+
+void BLEService::parse_characteristics() {
+  uint16_t offset = 0;
+  esp_gattc_char_elem_t result;
+
+  while (true) {
+    uint16_t count = 1;
+    esp_gatt_status_t status =
+        esp_ble_gattc_get_all_char(this->client->get_gattc_if(), this->client->get_conn_id(), this->start_handle,
+                                   this->end_handle, &result, &count, offset);
+    if (status == ESP_GATT_INVALID_OFFSET || status == ESP_GATT_NOT_FOUND) {
+      break;
+    }
+    if (status != ESP_GATT_OK) {
+      ESP_LOGW(TAG, "esp_ble_gattc_get_all_char error, status=%d", status);
+      break;
+    }
+    if (count == 0) {
+      break;
+    }
+
+    BLECharacteristic *characteristic = new BLECharacteristic();  // NOLINT(cppcoreguidelines-owning-memory)
+    characteristic->uuid = espbt::ESPBTUUID::from_uuid(result.uuid);
+    characteristic->properties = result.properties;
+    characteristic->handle = result.char_handle;
+    characteristic->service = this;
+    this->characteristics.push_back(characteristic);
+    ESP_LOGI(TAG, " characteristic %s, handle 0x%x, properties 0x%x", characteristic->uuid.to_string().c_str(),
+             characteristic->handle, characteristic->properties);
+    characteristic->parse_descriptors();
+    offset++;
+  }
+}
+
+}  // namespace esp32_ble_client
+}  // namespace esphome
+
+#endif  // USE_ESP32