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Commit f4672191 authored by Bao Do's avatar Bao Do
Browse files

HFP Audio client - header functions and client interface 

Bug: 294134504
Bug: 315234036
Test: mmm packages/modules/Bluetooth/system/audio_hal_interface
Change-Id: I06b48e01750e5bdf016ad2e2f8f8ee9ee17f3388
parent ef20867d

system/audio_hal_interface/aidl/client_interface_aidl.cc

+27 −9
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include "client_interface_aidl.h"



#include <android/binder_manager.h>

#include <android_bluetooth_flags.h>



namespace bluetooth {

namespace audio {
@@ -155,8 +156,8 @@ BluetoothAudioSinkClientInterface::BluetoothAudioSinkClientInterface( 


BluetoothAudioSinkClientInterface::~BluetoothAudioSinkClientInterface() {

  if (provider_factory_ != nullptr) {

    AIBinder_unlinkToDeath(provider_factory_->asBinder().get(), death_recipient_.get(),

                           nullptr);

    AIBinder_unlinkToDeath(provider_factory_->asBinder().get(),

                           death_recipient_.get(), nullptr);

  }

}
@@ -169,8 +170,8 @@ BluetoothAudioSourceClientInterface::BluetoothAudioSourceClientInterface( 


BluetoothAudioSourceClientInterface::~BluetoothAudioSourceClientInterface() {

  if (provider_factory_ != nullptr) {

    AIBinder_unlinkToDeath(provider_factory_->asBinder().get(), death_recipient_.get(),

                           nullptr);

    AIBinder_unlinkToDeath(provider_factory_->asBinder().get(),

                           death_recipient_.get(), nullptr);

  }

}
@@ -196,7 +197,12 @@ bool BluetoothAudioClientInterface::UpdateAudioConfig( 
       transport_->GetSessionType() ==

           SessionType::LE_AUDIO_SOFTWARE_DECODING_DATAPATH ||

       transport_->GetSessionType() ==

           SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH);

           SessionType::LE_AUDIO_BROADCAST_SOFTWARE_ENCODING_DATAPATH ||

       (IS_FLAG_ENABLED(is_sco_managed_by_audio) &&

        (transport_->GetSessionType() ==

             SessionType::HFP_SOFTWARE_ENCODING_DATAPATH ||

         transport_->GetSessionType() ==

             SessionType::HFP_SOFTWARE_DECODING_DATAPATH)));

  bool is_a2dp_offload_session =

      (transport_->GetSessionType() ==

       SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
@@ -221,9 +227,15 @@ bool BluetoothAudioClientInterface::UpdateAudioConfig( 
  bool is_leaudio_broadcast_offload_audio_config =

      (is_leaudio_broadcast_offload_session &&

       audio_config_tag == AudioConfiguration::leAudioBroadcastConfig);

  bool is_hfp_offload_audio_config =

      (IS_FLAG_ENABLED(is_sco_managed_by_audio) &&

       transport_->GetSessionType() ==

           SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH &&

       audio_config_tag == AudioConfiguration::hfpConfig);

  if (!is_software_audio_config && !is_a2dp_offload_audio_config &&

      !is_leaudio_unicast_offload_audio_config &&

      !is_leaudio_broadcast_offload_audio_config) {

      !is_leaudio_broadcast_offload_audio_config &&

      !is_hfp_offload_audio_config) {

    return false;

  }

  transport_->UpdateAudioConfiguration(audio_config);
@@ -315,7 +327,10 @@ int BluetoothAudioClientInterface::StartSession() { 
                 SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||

             transport_->GetSessionType() ==

                 SessionType::

                     LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {

                     LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||

             (IS_FLAG_ENABLED(is_sco_managed_by_audio) &&

              transport_->GetSessionType() ==

                  SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH)) {

    transport_->ResetPresentationPosition();

    session_started_ = true;

    return 0;
@@ -406,7 +421,10 @@ void BluetoothAudioClientInterface::FlushAudioData() { 
      transport_->GetSessionType() ==

          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH ||

      transport_->GetSessionType() ==

          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {

          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||

      (IS_FLAG_ENABLED(is_sco_managed_by_audio) &&

       transport_->GetSessionType() ==

           SessionType::HFP_HARDWARE_OFFLOAD_DATAPATH)) {

    return;

  }

system/audio_hal_interface/aidl/hfp_client_interface_aidl.h

0 → 100644
+166 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2023 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 <cstdint>



#include "client_interface_aidl.h"

#include "common/message_loop_thread.h"



namespace bluetooth {

namespace audio {

namespace aidl {

namespace hfp {



using ::aidl::android::hardware::bluetooth::audio::LatencyMode;



typedef enum {

  HFP_CTRL_CMD_NONE,

  HFP_CTRL_CMD_CHECK_READY,

  HFP_CTRL_CMD_START,

  HFP_CTRL_CMD_STOP,

  HFP_CTRL_CMD_SUSPEND,

  HFP_CTRL_GET_INPUT_AUDIO_CONFIG,

  HFP_CTRL_GET_OUTPUT_AUDIO_CONFIG,

  HFP_CTRL_SET_OUTPUT_AUDIO_CONFIG,

  HFP_CTRL_GET_PRESENTATION_POSITION,

} tHFP_CTRL_CMD;



// Provide call-in APIs for the Bluetooth Audio HAL

class HfpTransport {

 public:

  HfpTransport();



  BluetoothAudioCtrlAck StartRequest();



  BluetoothAudioCtrlAck SuspendRequest();



  void StopRequest();



  void SetLatencyMode(LatencyMode latency_mode);



  bool GetPresentationPosition(uint64_t* remote_delay_report_ns,

                               uint64_t* total_bytes_read,

                               timespec* data_position);



  void SourceMetadataChanged(const source_metadata_v7_t& source_metadata);



  void SinkMetadataChanged(const sink_metadata_v7_t&);



  void ResetPresentationPosition();



  uint8_t GetPendingCmd() const;



  void ResetPendingCmd();



  void LogBytesProcessed(size_t bytes_read);



 private:

  tHFP_CTRL_CMD hfp_pending_cmd_;

};



// Sink transport implementation

class HfpDecodingTransport

    : public ::bluetooth::audio::aidl::IBluetoothSinkTransportInstance {

 public:

  HfpDecodingTransport(SessionType sessionType);



  ~HfpDecodingTransport();



  BluetoothAudioCtrlAck StartRequest(bool is_low_latency);



  BluetoothAudioCtrlAck SuspendRequest();



  void StopRequest();



  void SetLatencyMode(LatencyMode latency_mode);



  bool GetPresentationPosition(uint64_t* remote_delay_report_ns,

                               uint64_t* total_bytes_read,

                               timespec* data_position);



  void SourceMetadataChanged(const source_metadata_v7_t& source_metadata);



  void SinkMetadataChanged(const sink_metadata_v7_t& sink_metadata);



  void ResetPresentationPosition();



  void LogBytesRead(size_t bytes_read) override;



  uint8_t GetPendingCmd() const;



  void ResetPendingCmd();



  static inline HfpDecodingTransport* instance_ = nullptr;

  static inline BluetoothAudioSinkClientInterface* software_hal_interface =

      nullptr;

  static inline BluetoothAudioSinkClientInterface* offloading_hal_interface =

      nullptr;

  static inline BluetoothAudioSinkClientInterface* active_hal_interface =

      nullptr;



 private:

  HfpTransport* transport_;

};



class HfpEncodingTransport

    : public ::bluetooth::audio::aidl::IBluetoothSourceTransportInstance {

 public:

  HfpEncodingTransport(SessionType sessionType);



  ~HfpEncodingTransport();



  BluetoothAudioCtrlAck StartRequest(bool is_low_latency);



  BluetoothAudioCtrlAck SuspendRequest();



  void StopRequest();



  void SetLatencyMode(LatencyMode latency_mode);



  bool GetPresentationPosition(uint64_t* remote_delay_report_ns,

                               uint64_t* total_bytes_read,

                               timespec* data_position);



  void SourceMetadataChanged(const source_metadata_v7_t& source_metadata);



  void SinkMetadataChanged(const sink_metadata_v7_t& sink_metadata);



  void ResetPresentationPosition();



  void LogBytesWritten(size_t bytes_written) override;



  uint8_t GetPendingCmd() const;



  void ResetPendingCmd();



  static inline HfpEncodingTransport* instance_ = nullptr;

  static inline BluetoothAudioSourceClientInterface* software_hal_interface =

      nullptr;

  static inline BluetoothAudioSourceClientInterface* offloading_hal_interface =

      nullptr;

  static inline BluetoothAudioSourceClientInterface* active_hal_interface =

      nullptr;



 private:

  HfpTransport* transport_;

};



}  // namespace hfp

}  // namespace aidl

}  // namespace audio

}  // namespace bluetooth

system/audio_hal_interface/hfp_client_interface.h

0 → 100644
+84 −0
Original line number Diff line number Diff line 
/*

 * Copyright 2023 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 "bta/ag/bta_ag_int.h"

#include "common/message_loop_thread.h"



namespace bluetooth {

namespace audio {

namespace hfp {



class HfpClientInterface {

 private:

  class IClientInterfaceEndpoint {

   public:

    virtual ~IClientInterfaceEndpoint() = default;

    virtual void Cleanup() = 0;

    virtual void StartSession() = 0;

    virtual void StopSession() = 0;

    virtual void UpdateAudioConfigToHal(

        const ::hfp::offload_config& config) = 0;

  };



 public:

  class Decode : public IClientInterfaceEndpoint {

   public:

    Decode(){};

    virtual ~Decode() = default;



    void Cleanup() override;

    void StartSession() override;

    void StopSession() override;

    void UpdateAudioConfigToHal(const ::hfp::offload_config& config) override;

    size_t Read(uint8_t* p_buf, uint32_t len);

  };



  class Encode : public IClientInterfaceEndpoint {

   public:

    virtual ~Encode() = default;



    void Cleanup() override;

    void StartSession() override;

    void StopSession() override;

    void UpdateAudioConfigToHal(const ::hfp::offload_config& config) override;

    size_t Write(const uint8_t* p_buf, uint32_t len);

  };



  // Get HFP sink client interface if it's not previously acquired and not

  // yet released.

  Decode* GetDecode(bluetooth::common::MessageLoopThread* message_loop);

  // Release sink interface if belongs to HFP client interface

  bool ReleaseDecode(Decode* sink);



  // Get HFP source client interface if it's not previously acquired and

  // not yet released.

  Encode* GetEncode(bluetooth::common::MessageLoopThread* message_loop);

  // Release source interface if belongs to HFP client interface

  bool ReleaseEncode(Encode* source);



  // Get interface, if previously not initialized - it'll initialize singleton.

  static HfpClientInterface* Get();



 private:

  static HfpClientInterface* interface;

  Decode* decode_ = nullptr;

  Encode* encode_ = nullptr;

};

}  // namespace hfp

}  // namespace audio

}  // namespace bluetooth

system/bta/include/bta_ag_api.h

+11 −0
Original line number Diff line number Diff line
@@ -292,6 +292,17 @@ typedef uint16_t tBTA_AG_PEER_CODEC; 
#define BTA_AG_AT_MAX_LEN 256

#endif



// Define hfp offload config structure

namespace hfp {



struct offload_config {

  tBTA_AG_PEER_CODEC sco_codec;

  int32_t connection_handle;

  bool is_controller_codec;

  bool is_nrec;

};



}  // namespace hfp

/* data associated with BTA_AG_IND_RES */

typedef struct {

  uint16_t id;