Merge "Camera: update camera audio restriction API"
diff --git a/camera/Camera.cpp b/camera/Camera.cpp
index 19849f8..84d1d93 100644
--- a/camera/Camera.cpp
+++ b/camera/Camera.cpp
@@ -347,13 +347,20 @@
     return c->setPreviewCallbackTarget(callbackProducer);
 }
 
-int32_t Camera::setAudioRestriction(int32_t mode)
+status_t Camera::setAudioRestriction(int32_t mode)
 {
     sp <::android::hardware::ICamera> c = mCamera;
     if (c == 0) return NO_INIT;
     return c->setAudioRestriction(mode);
 }
 
+int32_t Camera::getGlobalAudioRestriction()
+{
+    sp <::android::hardware::ICamera> c = mCamera;
+    if (c == 0) return NO_INIT;
+    return c->getGlobalAudioRestriction();
+}
+
 // callback from camera service
 void Camera::notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2)
 {
diff --git a/camera/ICamera.cpp b/camera/ICamera.cpp
index 060e8e0..b83edf7 100644
--- a/camera/ICamera.cpp
+++ b/camera/ICamera.cpp
@@ -57,6 +57,7 @@
     RELEASE_RECORDING_FRAME_HANDLE,
     RELEASE_RECORDING_FRAME_HANDLE_BATCH,
     SET_AUDIO_RESTRICTION,
+    GET_GLOBAL_AUDIO_RESTRICTION,
 };
 
 class BpCamera: public BpInterface<ICamera>
@@ -192,7 +193,7 @@
         }
     }
 
-    int32_t setAudioRestriction(int32_t mode) {
+    status_t setAudioRestriction(int32_t mode) {
         Parcel data, reply;
         data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
         data.writeInt32(mode);
@@ -200,6 +201,13 @@
         return reply.readInt32();
     }
 
+    int32_t getGlobalAudioRestriction() {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICamera::getInterfaceDescriptor());
+        remote()->transact(GET_GLOBAL_AUDIO_RESTRICTION, data, &reply);
+        return reply.readInt32();
+    }
+
     status_t setVideoBufferMode(int32_t videoBufferMode)
     {
         ALOGV("setVideoBufferMode: %d", videoBufferMode);
@@ -509,6 +517,11 @@
             reply->writeInt32(setAudioRestriction(mode));
             return NO_ERROR;
         } break;
+        case GET_GLOBAL_AUDIO_RESTRICTION: {
+            CHECK_INTERFACE(ICamera, data, reply);
+            reply->writeInt32(getGlobalAudioRestriction());
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
index 5987b42..93549e0 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
@@ -168,7 +168,13 @@
       *
       * @param mode the audio restriction mode ID as above
       *
-      * @return the resulting system-wide audio restriction mode
       */
-    int setCameraAudioRestriction(int mode);
+    void setCameraAudioRestriction(int mode);
+
+    /**
+      * Get global audio restriction mode for all camera clients.
+      *
+      * @return the currently applied system-wide audio restriction mode
+      */
+    int getGlobalAudioRestriction();
 }
diff --git a/camera/include/camera/Camera.h b/camera/include/camera/Camera.h
index 9800bb7..2cdb617 100644
--- a/camera/include/camera/Camera.h
+++ b/camera/include/camera/Camera.h
@@ -167,7 +167,8 @@
 
             sp<ICameraRecordingProxy> getRecordingProxy();
 
-            int32_t      setAudioRestriction(int32_t mode);
+            status_t     setAudioRestriction(int32_t mode);
+            int32_t      getGlobalAudioRestriction();
 
     // ICameraClient interface
     virtual void        notifyCallback(int32_t msgType, int32_t ext, int32_t ext2);
diff --git a/camera/include/camera/android/hardware/ICamera.h b/camera/include/camera/android/hardware/ICamera.h
index eba9efe..ec19e5d 100644
--- a/camera/include/camera/android/hardware/ICamera.h
+++ b/camera/include/camera/android/hardware/ICamera.h
@@ -142,7 +142,10 @@
             const sp<IGraphicBufferProducer>& bufferProducer) = 0;
 
     // Set the audio restriction mode
-    virtual int32_t         setAudioRestriction(int32_t mode) = 0;
+    virtual status_t        setAudioRestriction(int32_t mode) = 0;
+
+    // Get the global audio restriction mode
+    virtual int32_t         getGlobalAudioRestriction() = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 9ba6553..a503838 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -2507,11 +2507,16 @@
     return level == API_2;
 }
 
-int32_t CameraService::BasicClient::setAudioRestriction(int32_t mode) {
+status_t CameraService::BasicClient::setAudioRestriction(int32_t mode) {
     {
         Mutex::Autolock l(mAudioRestrictionLock);
         mAudioRestriction = mode;
     }
+    sCameraService->updateAudioRestriction();
+    return OK;
+}
+
+int32_t CameraService::BasicClient::getServiceAudioRestriction() const {
     return sCameraService->updateAudioRestriction();
 }
 
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index df8c17c..7c77e16 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -261,8 +261,13 @@
 
         // set audio restriction from client
         // Will call into camera service and hold mServiceLock
-        virtual int32_t setAudioRestriction(int32_t mode);
+        virtual status_t setAudioRestriction(int32_t mode);
 
+        // Get current global audio restriction setting
+        // Will call into camera service and hold mServiceLock
+        virtual int32_t getServiceAudioRestriction() const;
+
+        // Get current audio restriction setting for this client
         virtual int32_t getAudioRestriction() const;
 
         static bool isValidAudioRestriction(int32_t mode);
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index e996e83..c273881 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -2258,12 +2258,18 @@
     return OK;
 }
 
-int32_t Camera2Client::setAudioRestriction(int /*mode*/) {
+status_t Camera2Client::setAudioRestriction(int /*mode*/) {
     // Empty implementation. setAudioRestriction is hidden interface and not
     // supported by android.hardware.Camera API
     return INVALID_OPERATION;
 }
 
+int32_t Camera2Client::getGlobalAudioRestriction() {
+    // Empty implementation. getAudioRestriction is hidden interface and not
+    // supported by android.hardware.Camera API
+    return INVALID_OPERATION;
+}
+
 status_t Camera2Client::waitUntilCurrentRequestIdLocked() {
     int32_t activeRequestId = mStreamingProcessor->getActiveRequestId();
     if (activeRequestId != 0) {
diff --git a/services/camera/libcameraservice/api1/Camera2Client.h b/services/camera/libcameraservice/api1/Camera2Client.h
index e79a442..8a17b17 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.h
+++ b/services/camera/libcameraservice/api1/Camera2Client.h
@@ -83,7 +83,8 @@
     virtual void            notifyError(int32_t errorCode,
                                         const CaptureResultExtras& resultExtras);
     virtual status_t        setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer);
-    virtual int32_t         setAudioRestriction(int mode);
+    virtual status_t        setAudioRestriction(int mode);
+    virtual int32_t         getGlobalAudioRestriction();
 
     /**
      * Interface used by CameraService
diff --git a/services/camera/libcameraservice/api1/CameraClient.cpp b/services/camera/libcameraservice/api1/CameraClient.cpp
index 089f6cf..764b3a9 100644
--- a/services/camera/libcameraservice/api1/CameraClient.cpp
+++ b/services/camera/libcameraservice/api1/CameraClient.cpp
@@ -1171,7 +1171,7 @@
     return INVALID_OPERATION;
 }
 
-int32_t CameraClient::setAudioRestriction(int mode) {
+status_t CameraClient::setAudioRestriction(int mode) {
     if (!isValidAudioRestriction(mode)) {
         ALOGE("%s: invalid audio restriction mode %d", __FUNCTION__, mode);
         return BAD_VALUE;
@@ -1184,5 +1184,12 @@
     return BasicClient::setAudioRestriction(mode);
 }
 
+int32_t CameraClient::getGlobalAudioRestriction() {
+    Mutex::Autolock lock(mLock);
+    if (checkPidAndHardware() != NO_ERROR) {
+        return INVALID_OPERATION;
+    }
+    return BasicClient::getServiceAudioRestriction();
+}
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/api1/CameraClient.h b/services/camera/libcameraservice/api1/CameraClient.h
index fefa8c9..b26b612 100644
--- a/services/camera/libcameraservice/api1/CameraClient.h
+++ b/services/camera/libcameraservice/api1/CameraClient.h
@@ -59,7 +59,8 @@
     virtual String8         getParameters() const;
     virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
     virtual status_t        setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer);
-    virtual int32_t         setAudioRestriction(int mode);
+    virtual status_t        setAudioRestriction(int mode);
+    virtual int32_t         getGlobalAudioRestriction();
 
     // Interface used by CameraService
     CameraClient(const sp<CameraService>& cameraService,
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index be188bc..d93d26f 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -1870,8 +1870,7 @@
     return res;
 }
 
-binder::Status CameraDeviceClient::setCameraAudioRestriction(int32_t mode,
-        /*out*/ int32_t* outMode) {
+binder::Status CameraDeviceClient::setCameraAudioRestriction(int32_t mode) {
     ATRACE_CALL();
     binder::Status res;
     if (!(res = checkPidStatus(__FUNCTION__)).isOk()) return res;
@@ -1884,8 +1883,17 @@
     }
 
     Mutex::Autolock icl(mBinderSerializationLock);
+    BasicClient::setAudioRestriction(mode);
+    return binder::Status::ok();
+}
+
+binder::Status CameraDeviceClient::getGlobalAudioRestriction(/*out*/ int32_t* outMode) {
+    ATRACE_CALL();
+    binder::Status res;
+    if (!(res = checkPidStatus(__FUNCTION__)).isOk()) return res;
+    Mutex::Autolock icl(mBinderSerializationLock);
     if (outMode != nullptr) {
-        *outMode = BasicClient::setAudioRestriction(mode);
+        *outMode = BasicClient::getServiceAudioRestriction();
     }
     return binder::Status::ok();
 }
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index a9aa190..fe25010 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -152,9 +152,9 @@
     virtual binder::Status finalizeOutputConfigurations(int32_t streamId,
             const hardware::camera2::params::OutputConfiguration &outputConfiguration) override;
 
-    virtual binder::Status setCameraAudioRestriction(int32_t mode,
-            /*out*/
-            int32_t* outMode = NULL) override;
+    virtual binder::Status setCameraAudioRestriction(int32_t mode) override;
+
+    virtual binder::Status getGlobalAudioRestriction(/*out*/int32_t* outMode) override;
 
     /**
      * Interface used by CameraService