1 files changed, 209 insertions, 0 deletions
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
new file mode 100644
index 0000000000..0782c824e1
--- /dev/null
+++ b/bluetooth/audio/utils/aidl_session/BluetoothAudioSessionControl.h
@@ -0,0 +1,209 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "BluetoothAudioSession.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace audio {
+
+class BluetoothAudioSessionControl {
+ public:
+  /***
+   * The control API helps to check if session is ready or not
+   * @return: true if the Bluetooth stack has started th specified session
+   ***/
+  static bool IsSessionReady(const SessionType& session_type) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->IsSessionReady();
+    }
+
+    return false;
+  }
+
+  /***
+   * The control API helps the bluetooth_audio module to register
+   * PortStatusCallbacks
+   * @return: cookie - the assigned number to this bluetooth_audio output
+   ***/
+  static uint16_t RegisterControlResultCback(
+      const SessionType& session_type, const PortStatusCallbacks& cbacks) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->RegisterStatusCback(cbacks);
+    }
+    return kObserversCookieUndefined;
+  }
+
+  /***
+   * The control API helps the bluetooth_audio module to unregister
+   * PortStatusCallbacks
+   * @param: cookie - indicates which bluetooth_audio output is
+   ***/
+  static void UnregisterControlResultCback(const SessionType& session_type,
+                                           uint16_t cookie) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      session_ptr->UnregisterStatusCback(cookie);
+    }
+  }
+
+  /***
+   * The control API for the bluetooth_audio module to get current
+   * AudioConfiguration
+   ***/
+  static const AudioConfiguration GetAudioConfig(
+      const SessionType& session_type) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->GetAudioConfig();
+    }
+    switch (session_type) {
+      case SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+      case SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH:
+        return AudioConfiguration(CodecConfiguration{});
+      case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+      case SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH:
+        return AudioConfiguration(LeAudioConfiguration{});
+      case SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH:
+        return AudioConfiguration(LeAudioBroadcastConfiguration{});
+      default:
+        return AudioConfiguration(PcmConfiguration{});
+    }
+  }
+
+  /***
+   * Those control APIs for the bluetooth_audio module to start / suspend /
+  stop
+   * stream, to check position, and to update metadata.
+  ***/
+  static bool StartStream(const SessionType& session_type,
+                          bool low_latency = false) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->StartStream(low_latency);
+    }
+    return false;
+  }
+
+  static bool SuspendStream(const SessionType& session_type) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->SuspendStream();
+    }
+    return false;
+  }
+
+  static void StopStream(const SessionType& session_type) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      session_ptr->StopStream();
+    }
+  }
+
+  static bool GetPresentationPosition(
+      const SessionType& session_type,
+      PresentationPosition& presentation_position) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->GetPresentationPosition(presentation_position);
+    }
+    return false;
+  }
+
+  static void UpdateSourceMetadata(
+      const SessionType& session_type,
+      const struct source_metadata& source_metadata) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      session_ptr->UpdateSourceMetadata(source_metadata);
+    }
+  }
+
+  static void UpdateSinkMetadata(const SessionType& session_type,
+                                 const struct sink_metadata& sink_metadata) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      session_ptr->UpdateSinkMetadata(sink_metadata);
+    }
+  }
+
+  static std::vector<LatencyMode> GetSupportedLatencyModes(
+      const SessionType& session_type) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->GetSupportedLatencyModes();
+    }
+    return std::vector<LatencyMode>();
+  }
+
+  static void SetLatencyMode(const SessionType& session_type,
+                             const LatencyMode& latency_mode) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      session_ptr->SetLatencyMode(latency_mode);
+    }
+  }
+
+  /***
+   * The control API writes stream to FMQ
+   ***/
+  static size_t OutWritePcmData(const SessionType& session_type,
+                                const void* buffer, size_t bytes) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->OutWritePcmData(buffer, bytes);
+    }
+    return 0;
+  }
+
+  /***
+   * The control API reads stream from FMQ
+   ***/
+  static size_t InReadPcmData(const SessionType& session_type, void* buffer,
+                              size_t bytes) {
+    std::shared_ptr<BluetoothAudioSession> session_ptr =
+        BluetoothAudioSessionInstance::GetSessionInstance(session_type);
+    if (session_ptr != nullptr) {
+      return session_ptr->InReadPcmData(buffer, bytes);
+    }
+    return 0;
+  }
+};
+
+}  // namespace audio
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl