Bluetooth Proxy active connections (#3817)

esphome/components/esp32_ble_client/ble_characteristic.cpp

@@ -0,0 +1,83 @@
+#include "ble_characteristic.h"
+#include "ble_client_base.h"
+#include "ble_service.h"
+
+#include "esphome/core/log.h"
+
+#ifdef USE_ESP32
+
+namespace esphome {
+namespace esp32_ble_client {
+
+static const char *const TAG = "esp32_ble_client.characteristic";
+
+BLECharacteristic::~BLECharacteristic() {
+  for (auto &desc : this->descriptors)
+    delete desc;  // NOLINT(cppcoreguidelines-owning-memory)
+}
+
+void BLECharacteristic::parse_descriptors() {
+  uint16_t offset = 0;
+  esp_gattc_descr_elem_t result;
+
+  while (true) {
+    uint16_t count = 1;
+    esp_gatt_status_t status =
+        esp_ble_gattc_get_all_descr(this->service->client->get_gattc_if(), this->service->client->get_conn_id(),
+                                    this->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_descr error, status=%d", status);
+      break;
+    }
+    if (count == 0) {
+      break;
+    }
+
+    BLEDescriptor *desc = new BLEDescriptor();  // NOLINT(cppcoreguidelines-owning-memory)
+    desc->uuid = espbt::ESPBTUUID::from_uuid(result.uuid);
+    desc->handle = result.handle;
+    desc->characteristic = this;
+    this->descriptors.push_back(desc);
+    ESP_LOGV(TAG, "   descriptor %s, handle 0x%x", desc->uuid.to_string().c_str(), desc->handle);
+    offset++;
+  }
+}
+
+BLEDescriptor *BLECharacteristic::get_descriptor(espbt::ESPBTUUID uuid) {
+  for (auto &desc : this->descriptors) {
+    if (desc->uuid == uuid)
+      return desc;
+  }
+  return nullptr;
+}
+BLEDescriptor *BLECharacteristic::get_descriptor(uint16_t uuid) {
+  return this->get_descriptor(espbt::ESPBTUUID::from_uint16(uuid));
+}
+BLEDescriptor *BLECharacteristic::get_descriptor_by_handle(uint16_t handle) {
+  for (auto &desc : this->descriptors) {
+    if (desc->handle == handle)
+      return desc;
+  }
+  return nullptr;
+}
+
+void BLECharacteristic::write_value(uint8_t *new_val, int16_t new_val_size, esp_gatt_write_type_t write_type) {
+  auto *client = this->service->client;
+  auto status = esp_ble_gattc_write_char(client->get_gattc_if(), client->get_conn_id(), this->handle, new_val_size,
+                                         new_val, write_type, ESP_GATT_AUTH_REQ_NONE);
+  if (status) {
+    ESP_LOGW(TAG, "Error sending write value to BLE gattc server, status=%d", status);
+  }
+}
+
+void BLECharacteristic::write_value(uint8_t *new_val, int16_t new_val_size) {
+  write_value(new_val, new_val_size, ESP_GATT_WRITE_TYPE_NO_RSP);
+}
+
+}  // namespace esp32_ble_client
+}  // namespace esphome
+
+#endif  // USE_ESP32