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Commit 32ca190c authored by Jeremy Wu's avatar Jeremy Wu
Browse files

Floss: implement le_audio_shim 

This CL implements the topshim layer to bridge APIs between the native
stack and the Rust interface.

Bug: 317682584
Test: m Bluetooth
Flag: EXEMPT floss only changes
Change-Id: I706d7ad2d292d6b9c036bdf622ac643448918d02
parent 78056f40

system/gd/rust/topshim/Android.bp

+3 −0
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ cc_library_static { 
        "gatt/gatt_ble_scanner_shim.cc",

        "gatt/gatt_shim.cc",

        "hfp/hfp_shim.cc",

        "le_audio/le_audio_shim.cc",

        "vc/vc_shim.cc",

    ],

    generated_headers: [
@@ -90,6 +91,7 @@ gensrcs { 
        "src/profiles/csis.rs",

        "src/profiles/gatt.rs",

        "src/profiles/hfp.rs",

        "src/profiles/le_audio.rs",

        "src/profiles/vc.rs",

    ],

    output_extension: "rs.h",
@@ -108,6 +110,7 @@ gensrcs { 
        "src/profiles/csis.rs",

        "src/profiles/gatt.rs",

        "src/profiles/hfp.rs",

        "src/profiles/le_audio.rs",

        "src/profiles/vc.rs",

    ],

    output_extension: "cc",

system/gd/rust/topshim/BUILD.gn

+3 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ cxxbridge_header("btif_bridge_header") { 
    "src/profiles/gatt.rs",

    "src/profiles/hfp.rs",

    "src/profiles/vc.rs",

    "src/profiles/le_audio.rs",

  ]

  all_dependent_configs = [ ":rust_topshim_config" ]

  deps = [ ":cxxlibheader" ]
@@ -47,6 +48,7 @@ cxxbridge_cc("btif_bridge_code") { 
    "src/profiles/gatt.rs",

    "src/profiles/hfp.rs",

    "src/profiles/vc.rs",

    "src/profiles/le_audio.rs",

  ]

  deps = [

    ":btif_bridge_header",
@@ -70,6 +72,7 @@ source_set("btif_cxx_bridge_code") { 
    "gatt/gatt_shim.cc",

    "hfp/hfp_shim.cc",

    "vc/vc_shim.cc",

    "le_audio/le_audio_shim.cc",

    "metrics/metrics_shim.cc",

  ]

system/gd/rust/topshim/le_audio/le_audio_shim.cc

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+564 −0

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system/gd/rust/topshim/le_audio/le_audio_shim.h

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+83 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2024 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 <memory>



#include "audio_hal_interface/le_audio_software_host.h"

#include "include/hardware/bt_le_audio.h"

#include "rust/cxx.h"

#include "types/raw_address.h"



namespace bluetooth {

namespace topshim {

namespace rust {



struct BtLeAudioCodecConfig;

enum class BtLeAudioDirection : uint8_t;

struct BtLePcmConfig;

struct SourceMetadata;

struct SinkMetadata;



class LeAudioClientIntf {

 public:

  LeAudioClientIntf(le_audio::LeAudioClientInterface* intf) : intf_(intf){};



  void init(

      /*

LeAudioClientCallbacks* callbacks,

const std::vector<le_audio::btle_audio_codec_config_t>& offloading_preference

*/);

  void connect(RawAddress addr);

  void disconnect(RawAddress addr);

  void set_enable_state(RawAddress addr, bool enabled);

  void cleanup();

  void remove_device(RawAddress addr);

  void group_add_node(int group_id, RawAddress addr);

  void group_remove_node(int group_id, RawAddress addr);

  void group_set_active(int group_id);

  void set_codec_config_preference(

      int group_id,

      BtLeAudioCodecConfig input_codec_config,

      BtLeAudioCodecConfig output_codec_config);

  void set_ccid_information(int ccid, int context_type);

  void set_in_call(bool in_call);

  void send_audio_profile_preferences(

      int group_id, bool is_output_preference_le_audio, bool is_duplex_preference_le_audio);

  void set_unicast_monitor_mode(BtLeAudioDirection direction, bool enable);



  // interface for audio server

  bool host_start_audio_request();

  void host_stop_audio_request();

  bool peer_start_audio_request();

  void peer_stop_audio_request();

  BtLePcmConfig get_host_pcm_config();

  BtLePcmConfig get_peer_pcm_config();

  bool get_host_stream_started();

  bool get_peer_stream_started();

  void source_metadata_changed(::rust::Vec<SourceMetadata> metadata);

  void sink_metadata_changed(::rust::Vec<SinkMetadata> metadata);



 private:

  le_audio::LeAudioClientInterface* intf_;

};



std::unique_ptr<LeAudioClientIntf> GetLeAudioClientProfile(const unsigned char* btif);



}  // namespace rust

}  // namespace topshim

}  // namespace bluetooth

system/gd/rust/topshim/src/profiles/le_audio.rs

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