Querying capability of haptic playback.

Bug: 111454766
Test: Manually test
Change-Id: Ib200d6b8f02354a01cf599a96fb1a9062dcd3050
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index ec36ed7..78f3cae 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -1315,6 +1315,13 @@
     return aps->setA11yServicesUids(uids);
 }
 
+bool AudioSystem::isHapticPlaybackSupported()
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return false;
+    return aps->isHapticPlaybackSupported();
+}
+
 
 // ---------------------------------------------------------------------------
 
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
index a406658..555ac87 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -88,6 +88,7 @@
     REMOVE_SOURCE_DEFAULT_EFFECT,
     SET_ASSISTANT_UID,
     SET_A11Y_SERVICES_UIDS,
+    IS_HAPTIC_PLAYBACK_SUPPORTED,
 };
 
 #define MAX_ITEMS_PER_LIST 1024
@@ -970,6 +971,17 @@
         return static_cast <status_t> (reply.readInt32());
     }
 
+    virtual bool isHapticPlaybackSupported()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        status_t status = remote()->transact(IS_HAPTIC_PLAYBACK_SUPPORTED, data, &reply);
+        if (status != NO_ERROR) {
+            return false;
+        }
+        return reply.readBool();
+    }
+
 };
 
 IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
@@ -1777,6 +1789,13 @@
             return NO_ERROR;
         }
 
+        case IS_HAPTIC_PLAYBACK_SUPPORTED: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            bool isSupported = isHapticPlaybackSupported();
+            reply->writeBool(isSupported);
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index 76a79c9..a04b494 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -346,6 +346,8 @@
     static status_t setAssistantUid(uid_t uid);
     static status_t setA11yServicesUids(const std::vector<uid_t>& uids);
 
+    static bool     isHapticPlaybackSupported();
+
     // ----------------------------------------------------------------------------
 
     class AudioPortCallback : public RefBase
diff --git a/media/libaudioclient/include/media/IAudioPolicyService.h b/media/libaudioclient/include/media/IAudioPolicyService.h
index a246df6..b74d25b 100644
--- a/media/libaudioclient/include/media/IAudioPolicyService.h
+++ b/media/libaudioclient/include/media/IAudioPolicyService.h
@@ -182,6 +182,8 @@
 
     virtual status_t setAssistantUid(uid_t uid) = 0;
     virtual status_t setA11yServicesUids(const std::vector<uid_t>& uids) = 0;
+
+    virtual bool     isHapticPlaybackSupported() = 0;
 };