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Commit eb1f7cf3 authored by Jakub Pawlowski's avatar Jakub Pawlowski
Browse files

LE audio: Pass METADATA_LE_AUDIO to native 

Bug: 258651822
Test: manual, pair with FP capable LE Audio device
Merged-In: Idfcc87ceb707a526fbfb008ec69dc6440db7c880
Change-Id: Idfcc87ceb707a526fbfb008ec69dc6440db7c880
parent 15029e7b

android/app/jni/com_android_bluetooth_btservice_AdapterService.cpp

+30 −0
Original line number Diff line number Diff line
@@ -1810,6 +1810,35 @@ static jboolean allowLowLatencyAudioNative(JNIEnv* env, jobject obj, 
  return true;

}



static void metadataChangedNative(JNIEnv* env, jobject obj, jbyteArray address,

                                  jint key, jbyteArray value) {

  ALOGV("%s", __func__);

  if (!sBluetoothInterface) return;

  jbyte* addr = env->GetByteArrayElements(address, nullptr);

  if (addr == nullptr) {

    jniThrowIOException(env, EINVAL);

    return;

  }

  RawAddress addr_obj = {};

  addr_obj.FromOctets((uint8_t*)addr);



  if (value == NULL) {

    ALOGE("metadataChangedNative() ignoring NULL array");

    return;

  }



  uint16_t len = (uint16_t)env->GetArrayLength(value);

  jbyte* p_value = env->GetByteArrayElements(value, NULL);

  if (p_value == NULL) return;



  std::vector<uint8_t> val_vec(reinterpret_cast<uint8_t*>(p_value),

                               reinterpret_cast<uint8_t*>(p_value + len));

  env->ReleaseByteArrayElements(value, p_value, 0);



  sBluetoothInterface->metadata_changed(addr_obj, key, std::move(val_vec));

  return;

}



static JNINativeMethod sMethods[] = {

    /* name, signature, funcPtr */

    {"classInitNative", "()V", (void*)classInitNative},
@@ -1852,6 +1881,7 @@ static JNINativeMethod sMethods[] = { 
    {"requestMaximumTxDataLengthNative", "([B)V",

     (void*)requestMaximumTxDataLengthNative},

    {"allowLowLatencyAudioNative", "(Z[B)Z", (void*)allowLowLatencyAudioNative},

    {"metadataChangedNative", "([BI[B)V", (void*)metadataChangedNative},

};



int register_com_android_bluetooth_btservice_AdapterService(JNIEnv* env) {

android/app/src/com/android/bluetooth/btservice/AdapterService.java

+8 −0
Original line number Diff line number Diff line
@@ -4979,6 +4979,12 @@ public class AdapterService extends Service { 
    @VisibleForTesting

    public void metadataChanged(String address, int key, byte[] value) {

        BluetoothDevice device = mRemoteDevices.getDevice(Utils.getBytesFromAddress(address));



        // pass just interesting metadata to native, to reduce spam

        if (key == BluetoothDevice.METADATA_LE_AUDIO) {

            metadataChangedNative(Utils.getBytesFromAddress(address), key, value);

        }



        if (mMetadataListeners.containsKey(device)) {

            ArrayList<IBluetoothMetadataListener> list = mMetadataListeners.get(device);

            for (IBluetoothMetadataListener listener : list) {
@@ -5624,6 +5630,8 @@ public class AdapterService extends Service { 


    private native boolean allowLowLatencyAudioNative(boolean allowed, byte[] address);



    private native void metadataChangedNative(byte[] address, int key, byte[] value);



    // Returns if this is a mock object. This is currently used in testing so that we may not call

    // System.exit() while finalizing the object. Otherwise GC of mock objects unfortunately ends up

    // calling finalize() which in turn calls System.exit() and the process crashes.

system/btif/include/btif_dm.h

+3 −0
Original line number Diff line number Diff line
@@ -74,6 +74,9 @@ void btif_dm_generate_local_oob_data(tBT_TRANSPORT transport); 


void btif_dm_clear_event_filter();



void btif_dm_metadata_changed(const RawAddress& remote_bd_addr, int key,

                              std::vector<uint8_t> value);



/*callout for reading SMP properties from Text file*/

bool btif_dm_get_smp_config(tBTE_APPL_CFG* p_cfg);

system/btif/src/bluetooth.cc

+14 −1
Original line number Diff line number Diff line
@@ -640,6 +640,18 @@ static bool allow_low_latency_audio(bool allowed, const RawAddress& address) { 
  return true;

}



static void metadata_changed(const RawAddress& remote_bd_addr, int key,

                             std::vector<uint8_t> value) {

  if (!interface_ready()) {

    LOG_ERROR("Interface not ready!");

    return;

  }



  do_in_main_thread(

      FROM_HERE, base::BindOnce(btif_dm_metadata_changed, remote_bd_addr, key,

                                std::move(value)));

}



EXPORT_SYMBOL bt_interface_t bluetoothInterface = {

    sizeof(bluetoothInterface),

    init,
@@ -680,7 +692,8 @@ EXPORT_SYMBOL bt_interface_t bluetoothInterface = { 
    set_dynamic_audio_buffer_size,

    generate_local_oob_data,

    allow_low_latency_audio,

    clear_event_filter};

    clear_event_filter,

    metadata_changed};



// callback reporting helpers

system/btif/src/btif_dm.cc

+3 −0
Original line number Diff line number Diff line
@@ -3618,3 +3618,6 @@ void btif_dm_clear_event_filter() { 
  LOG_VERBOSE("%s: called", __func__);

  bta_dm_clear_event_filter();

}



void btif_dm_metadata_changed(const RawAddress& remote_bd_addr, int key,

                              std::vector<uint8_t> value) {}