Bluetooth audio hal check broadcast configuraiton for the broadcast offload

The patch contains the following changes
1. Check the broadcast audio configuration as starting broadcast offload
   session
2. Update audio configuration checker for broadcast offload
3. Remove the IsOffloadLeAudioConfigurationValid function that the audio
   configuraiton is invalid as session started, so we don't need to
   check it at that time

Bug: 210987580
Test: start the offload broadcast stream, and check the session status
Change-Id: I60b1b506051873f6d942f2febace6562634fc12a

bluetooth/audio/aidl/default/LeAudioOffloadAudioProvider.cpp

@@ -55,21 +55,20 @@ ndk::ScopedAStatus LeAudioOffloadAudioProvider::startSession(
     const std::shared_ptr<IBluetoothAudioPort>& host_if,
     const AudioConfiguration& audio_config,
     const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
-  if (audio_config.getTag() != AudioConfiguration::leAudioConfig) {
+  if (session_type_ ==
+      SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
+    if (audio_config.getTag() != AudioConfiguration::leAudioBroadcastConfig) {
+      LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
+                   << audio_config.toString();
+      *_aidl_return = DataMQDesc();
+      return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
+    }
+  } else if (audio_config.getTag() != AudioConfiguration::leAudioConfig) {
     LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
                  << audio_config.toString();
     *_aidl_return = DataMQDesc();
     return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
   }
-  const auto& le_audio_config =
-      audio_config.get<AudioConfiguration::leAudioConfig>();
-  if (!BluetoothAudioCodecs::IsOffloadLeAudioConfigurationValid(
-          session_type_, le_audio_config)) {
-    LOG(WARNING) << __func__ << " - Unsupported LC3 Offloaded Configuration="
-                 << le_audio_config.toString();
-    *_aidl_return = DataMQDesc();
-    return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
-  }
 
   return BluetoothAudioProvider::startSession(
       host_if, audio_config, latency_modes, _aidl_return);

bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.cpp

@@ -317,19 +317,6 @@ bool BluetoothAudioCodecs::IsOffloadLc3ConfigurationValid(
   return false;
 }
 
-bool BluetoothAudioCodecs::IsOffloadLeAudioConfigurationValid(
-    const SessionType& session_type, const LeAudioConfiguration&) {
-  if (session_type !=
-          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH &&
-      session_type !=
-          SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH &&
-      session_type !=
-          SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH) {
-    return false;
-  }
-  return true;
-}
-
 std::vector<PcmCapabilities>
 BluetoothAudioCodecs::GetSoftwarePcmCapabilities() {
   return {kDefaultSoftwarePcmCapabilities};

bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.h

@@ -44,9 +44,6 @@ class BluetoothAudioCodecs {
   static bool IsOffloadCodecConfigurationValid(
       const SessionType& session_type, const CodecConfiguration& codec_config);
 
-  static bool IsOffloadLeAudioConfigurationValid(
-      const SessionType& session_type, const LeAudioConfiguration&);
-
   static std::vector<LeAudioCodecCapabilitiesSetting>
   GetLeAudioOffloadCodecCapabilities(const SessionType& session_type);
 

bluetooth/audio/utils/aidl_session/BluetoothAudioSession.cpp

@@ -276,11 +276,14 @@ bool BluetoothAudioSession::UpdateAudioConfig(
   bool is_offload_a2dp_session =
       (session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ == SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH);
-  bool is_offload_le_audio_session =
+  bool is_offload_le_audio_unicast_session =
       (session_type_ ==
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH ||
        session_type_ ==
            SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH);
+  bool is_offload_le_audio_broadcast_session =
+      (session_type_ ==
+       SessionType::LE_AUDIO_BROADCAST_HARDWARE_OFFLOAD_ENCODING_DATAPATH);
   auto audio_config_tag = audio_config.getTag();
   bool is_software_audio_config =
       (is_software_session &&
@@ -288,11 +291,15 @@ bool BluetoothAudioSession::UpdateAudioConfig(
   bool is_a2dp_offload_audio_config =
       (is_offload_a2dp_session &&
        audio_config_tag == AudioConfiguration::a2dpConfig);
-  bool is_le_audio_offload_audio_config =
+  bool is_le_audio_offload_unicast_audio_config =
-      (is_offload_le_audio_session &&
+      (is_offload_le_audio_unicast_session &&
        audio_config_tag == AudioConfiguration::leAudioConfig);
+  bool is_le_audio_offload_broadcast_audio_config =
+      (is_offload_le_audio_broadcast_session &&
+       audio_config_tag == AudioConfiguration::leAudioBroadcastConfig);
   if (!is_software_audio_config && !is_a2dp_offload_audio_config &&
-      !is_le_audio_offload_audio_config) {
+      !is_le_audio_offload_unicast_audio_config &&
+      !is_le_audio_offload_broadcast_audio_config) {
     return false;
   }
   audio_config_ = std::make_unique<AudioConfiguration>(audio_config);