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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_SERVERS_CAMERA_CAMERASERVICE_H
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#define ANDROID_SERVERS_CAMERA_CAMERASERVICE_H
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#include <android/hardware/BnCameraService.h>
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#include <android/hardware/ICameraServiceListener.h>
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#include <cutils/multiuser.h>
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#include <utils/Vector.h>
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#include <utils/KeyedVector.h>
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#include <binder/AppOpsManager.h>
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#include <binder/BinderService.h>
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#include <binder/IAppOpsCallback.h>
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#include <camera/ICameraServiceProxy.h>
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#include <hardware/camera.h>
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#include <android/hardware/camera/common/1.0/types.h>
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#include <camera/VendorTagDescriptor.h>
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#include <camera/CaptureResult.h>
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#include <camera/CameraParameters.h>
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#include "CameraFlashlight.h"
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#include "common/CameraModule.h"
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#include "media/RingBuffer.h"
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#include "utils/AutoConditionLock.h"
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#include "utils/ClientManager.h"
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#include <set>
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#include <string>
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#include <map>
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#include <memory>
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#include <utility>
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namespace android {
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extern volatile int32_t gLogLevel;
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class MemoryHeapBase;
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class MediaPlayer;
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class CameraService :
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public BinderService<CameraService>,
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public ::android::hardware::BnCameraService,
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public IBinder::DeathRecipient,
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public camera_module_callbacks_t
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{
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friend class BinderService<CameraService>;
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public:
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class Client;
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class BasicClient;
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// The effective API level. The Camera2 API running in LEGACY mode counts as API_1.
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enum apiLevel {
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API_1 = 1,
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API_2 = 2
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};
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// Process state (mirrors frameworks/base/core/java/android/app/ActivityManager.java)
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static const int PROCESS_STATE_NONEXISTENT = -1;
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static const int PROCESS_STATE_TOP = 2;
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static const int PROCESS_STATE_TOP_SLEEPING = 5;
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// 3 second busy timeout when other clients are connecting
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static const nsecs_t DEFAULT_CONNECT_TIMEOUT_NS = 3000000000;
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// 1 second busy timeout when other clients are disconnecting
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static const nsecs_t DEFAULT_DISCONNECT_TIMEOUT_NS = 1000000000;
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// Default number of messages to store in eviction log
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static const size_t DEFAULT_EVENT_LOG_LENGTH = 100;
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// Event log ID
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static const int SN_EVENT_LOG_ID = 0x534e4554;
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// Implementation of BinderService<T>
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static char const* getServiceName() { return "media.camera"; }
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CameraService();
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virtual ~CameraService();
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/////////////////////////////////////////////////////////////////////
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// HAL Callbacks
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virtual void onDeviceStatusChanged(const String8 &cameraId,
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hardware::camera::common::V1_0::CameraDeviceStatus newHalStatus);
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virtual void onTorchStatusChanged(const String8& cameraId,
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hardware::camera::common::V1_0::TorchModeStatus newStatus);
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/////////////////////////////////////////////////////////////////////
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// ICameraService
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virtual binder::Status getNumberOfCameras(int32_t type, int32_t* numCameras);
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virtual binder::Status getCameraInfo(int cameraId,
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hardware::CameraInfo* cameraInfo);
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virtual binder::Status getCameraCharacteristics(const String16& id,
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CameraMetadata* cameraInfo);
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virtual binder::Status getCameraVendorTagDescriptor(
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/*out*/
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hardware::camera2::params::VendorTagDescriptor* desc);
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virtual binder::Status connect(const sp<hardware::ICameraClient>& cameraClient,
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int32_t cameraId, const String16& clientPackageName,
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int32_t clientUid, int clientPid,
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/*out*/
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sp<hardware::ICamera>* device);
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virtual binder::Status connectLegacy(const sp<hardware::ICameraClient>& cameraClient,
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int32_t cameraId, int32_t halVersion,
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const String16& clientPackageName, int32_t clientUid,
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/*out*/
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sp<hardware::ICamera>* device);
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virtual binder::Status connectDevice(
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const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb, const String16& cameraId,
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const String16& clientPackageName, int32_t clientUid,
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/*out*/
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sp<hardware::camera2::ICameraDeviceUser>* device);
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virtual binder::Status addListener(const sp<hardware::ICameraServiceListener>& listener,
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/*out*/
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std::vector<hardware::CameraStatus>* cameraStatuses);
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virtual binder::Status removeListener(
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const sp<hardware::ICameraServiceListener>& listener);
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virtual binder::Status getLegacyParameters(
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int32_t cameraId,
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/*out*/
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String16* parameters);
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virtual binder::Status setTorchMode(const String16& cameraId, bool enabled,
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const sp<IBinder>& clientBinder);
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virtual binder::Status notifySystemEvent(int32_t eventId,
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const std::vector<int32_t>& args);
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// OK = supports api of that version, -EOPNOTSUPP = does not support
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virtual binder::Status supportsCameraApi(
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const String16& cameraId, int32_t apiVersion,
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/*out*/
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bool *isSupported);
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// Extra permissions checks
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virtual status_t onTransact(uint32_t code, const Parcel& data,
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Parcel* reply, uint32_t flags);
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virtual status_t dump(int fd, const Vector<String16>& args);
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/////////////////////////////////////////////////////////////////////
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// Client functionality
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enum sound_kind {
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SOUND_SHUTTER = 0,
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SOUND_RECORDING_START = 1,
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SOUND_RECORDING_STOP = 2,
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NUM_SOUNDS
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};
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void loadSound();
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void playSound(sound_kind kind);
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void releaseSound();
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/**
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* Update the state of a given camera device (open/close/active/idle) with
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* the camera proxy service in the system service
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*/
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static void updateProxyDeviceState(
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ICameraServiceProxy::CameraState newState,
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const String8& cameraId);
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/////////////////////////////////////////////////////////////////////
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// CameraDeviceFactory functionality
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int getDeviceVersion(int cameraId, int* facing = NULL);
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/////////////////////////////////////////////////////////////////////
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// Shared utilities
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static binder::Status filterGetInfoErrorCode(status_t err);
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/////////////////////////////////////////////////////////////////////
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// CameraClient functionality
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class BasicClient : public virtual RefBase {
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public:
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virtual status_t initialize(CameraModule *module) = 0;
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virtual binder::Status disconnect();
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// because we can't virtually inherit IInterface, which breaks
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// virtual inheritance
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virtual sp<IBinder> asBinderWrapper() = 0;
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// Return the remote callback binder object (e.g. ICameraDeviceCallbacks)
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sp<IBinder> getRemote() {
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return mRemoteBinder;
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}
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// Disallows dumping over binder interface
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virtual status_t dump(int fd, const Vector<String16>& args);
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// Internal dump method to be called by CameraService
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virtual status_t dumpClient(int fd, const Vector<String16>& args) = 0;
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// Return the package name for this client
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virtual String16 getPackageName() const;
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// Notify client about a fatal error
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virtual void notifyError(int32_t errorCode,
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const CaptureResultExtras& resultExtras) = 0;
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// Get the UID of the application client using this
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virtual uid_t getClientUid() const;
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// Get the PID of the application client using this
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virtual int getClientPid() const;
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// Check what API level is used for this client. This is used to determine which
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// superclass this can be cast to.
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virtual bool canCastToApiClient(apiLevel level) const;
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protected:
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BasicClient(const sp<CameraService>& cameraService,
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const sp<IBinder>& remoteCallback,
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const String16& clientPackageName,
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int cameraId,
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int cameraFacing,
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int clientPid,
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uid_t clientUid,
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int servicePid);
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virtual ~BasicClient();
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// the instance is in the middle of destruction. When this is set,
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// the instance should not be accessed from callback.
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// CameraService's mClientLock should be acquired to access this.
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// - subclasses should set this to true in their destructors.
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bool mDestructionStarted;
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// these are initialized in the constructor.
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sp<CameraService> mCameraService; // immutable after constructor
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int mCameraId; // immutable after constructor
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int mCameraFacing; // immutable after constructor
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String16 mClientPackageName; // immutable after constructor
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pid_t mClientPid;
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uid_t mClientUid; // immutable after constructor
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pid_t mServicePid; // immutable after constructor
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bool mDisconnected;
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// - The app-side Binder interface to receive callbacks from us
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sp<IBinder> mRemoteBinder; // immutable after constructor
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// permissions management
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status_t startCameraOps();
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status_t finishCameraOps();
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private:
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AppOpsManager mAppOpsManager;
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class OpsCallback : public BnAppOpsCallback {
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public:
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explicit OpsCallback(wp<BasicClient> client);
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virtual void opChanged(int32_t op, const String16& packageName);
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private:
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wp<BasicClient> mClient;
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}; // class OpsCallback
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sp<OpsCallback> mOpsCallback;
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// Track whether startCameraOps was called successfully, to avoid
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// finishing what we didn't start.
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bool mOpsActive;
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// IAppOpsCallback interface, indirected through opListener
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virtual void opChanged(int32_t op, const String16& packageName);
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}; // class BasicClient
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class Client : public hardware::BnCamera, public BasicClient
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{
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public:
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typedef hardware::ICameraClient TCamCallbacks;
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// ICamera interface (see ICamera for details)
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virtual binder::Status disconnect();
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virtual status_t connect(const sp<hardware::ICameraClient>& client) = 0;
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virtual status_t lock() = 0;
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virtual status_t unlock() = 0;
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virtual status_t setPreviewTarget(const sp<IGraphicBufferProducer>& bufferProducer)=0;
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virtual void setPreviewCallbackFlag(int flag) = 0;
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virtual status_t setPreviewCallbackTarget(
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const sp<IGraphicBufferProducer>& callbackProducer) = 0;
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virtual status_t startPreview() = 0;
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virtual void stopPreview() = 0;
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virtual bool previewEnabled() = 0;
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virtual status_t setVideoBufferMode(int32_t videoBufferMode) = 0;
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virtual status_t startRecording() = 0;
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virtual void stopRecording() = 0;
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virtual bool recordingEnabled() = 0;
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virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0;
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virtual status_t autoFocus() = 0;
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virtual status_t cancelAutoFocus() = 0;
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virtual status_t takePicture(int msgType) = 0;
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virtual status_t setParameters(const String8& params) = 0;
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virtual String8 getParameters() const = 0;
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virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
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virtual status_t setVideoTarget(const sp<IGraphicBufferProducer>& bufferProducer) = 0;
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// Interface used by CameraService
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Client(const sp<CameraService>& cameraService,
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const sp<hardware::ICameraClient>& cameraClient,
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const String16& clientPackageName,
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int cameraId,
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int cameraFacing,
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int clientPid,
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uid_t clientUid,
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int servicePid);
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~Client();
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// return our camera client
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const sp<hardware::ICameraClient>& getRemoteCallback() {
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return mRemoteCallback;
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}
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virtual sp<IBinder> asBinderWrapper() {
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return asBinder(this);
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}
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virtual void notifyError(int32_t errorCode,
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const CaptureResultExtras& resultExtras);
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// Check what API level is used for this client. This is used to determine which
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// superclass this can be cast to.
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virtual bool canCastToApiClient(apiLevel level) const;
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protected:
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// Convert client from cookie.
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static sp<CameraService::Client> getClientFromCookie(void* user);
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// Initialized in constructor
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// - The app-side Binder interface to receive callbacks from us
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sp<hardware::ICameraClient> mRemoteCallback;
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}; // class Client
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/**
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* A listener class that implements the LISTENER interface for use with a ClientManager, and
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* implements the following methods:
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* void onClientRemoved(const ClientDescriptor<KEY, VALUE>& descriptor);
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* void onClientAdded(const ClientDescriptor<KEY, VALUE>& descriptor);
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*/
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class ClientEventListener {
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public:
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void onClientAdded(const resource_policy::ClientDescriptor<String8,
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sp<CameraService::BasicClient>>& descriptor);
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void onClientRemoved(const resource_policy::ClientDescriptor<String8,
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sp<CameraService::BasicClient>>& descriptor);
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}; // class ClientEventListener
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typedef std::shared_ptr<resource_policy::ClientDescriptor<String8,
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sp<CameraService::BasicClient>>> DescriptorPtr;
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/**
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* A container class for managing active camera clients that are using HAL devices. Active
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* clients are represented by ClientDescriptor objects that contain strong pointers to the
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* actual BasicClient subclass binder interface implementation.
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*
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* This class manages the eviction behavior for the camera clients. See the parent class
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|
|
|
* implementation in utils/ClientManager for the specifics of this behavior.
|
|
|
|
*/
|
|
|
|
class CameraClientManager : public resource_policy::ClientManager<String8,
|
|
|
|
sp<CameraService::BasicClient>, ClientEventListener> {
|
|
|
|
public:
|
|
|
|
CameraClientManager();
|
|
|
|
virtual ~CameraClientManager();
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return a strong pointer to the active BasicClient for this camera ID, or an empty
|
|
|
|
* if none exists.
|
|
|
|
*/
|
|
|
|
sp<CameraService::BasicClient> getCameraClient(const String8& id) const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return a string describing the current state.
|
|
|
|
*/
|
|
|
|
String8 toString() const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Make a ClientDescriptor object wrapping the given BasicClient strong pointer.
|
|
|
|
*/
|
|
|
|
static DescriptorPtr makeClientDescriptor(const String8& key, const sp<BasicClient>& value,
|
|
|
|
int32_t cost, const std::set<String8>& conflictingKeys, int32_t priority,
|
|
|
|
int32_t ownerId);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Make a ClientDescriptor object wrapping the given BasicClient strong pointer with
|
|
|
|
* values intialized from a prior ClientDescriptor.
|
|
|
|
*/
|
|
|
|
static DescriptorPtr makeClientDescriptor(const sp<BasicClient>& value,
|
|
|
|
const CameraService::DescriptorPtr& partial);
|
|
|
|
|
|
|
|
}; // class CameraClientManager
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
|
|
|
typedef hardware::camera::common::V1_0::CameraDeviceStatus CameraDeviceStatus;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Typesafe version of device status, containing both the HAL-layer and the service interface-
|
|
|
|
* layer values.
|
|
|
|
*/
|
|
|
|
enum class StatusInternal : int32_t {
|
|
|
|
NOT_PRESENT = static_cast<int32_t>(CameraDeviceStatus::NOT_PRESENT),
|
|
|
|
PRESENT = static_cast<int32_t>(CameraDeviceStatus::PRESENT),
|
|
|
|
ENUMERATING = static_cast<int32_t>(CameraDeviceStatus::ENUMERATING),
|
|
|
|
NOT_AVAILABLE = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE),
|
|
|
|
UNKNOWN = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_UNKNOWN)
|
|
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Container class for the state of each logical camera device, including: ID, status, and
|
|
|
|
* dependencies on other devices. The mapping of camera ID -> state saved in mCameraStates
|
|
|
|
* represents the camera devices advertised by the HAL (and any USB devices, when we add
|
|
|
|
* those).
|
|
|
|
*
|
|
|
|
* This container does NOT represent an active camera client. These are represented using
|
|
|
|
* the ClientDescriptors stored in mActiveClientManager.
|
|
|
|
*/
|
|
|
|
class CameraState {
|
|
|
|
public:
|
|
|
|
/**
|
|
|
|
* Make a new CameraState and set the ID, cost, and conflicting devices using the values
|
|
|
|
* returned in the HAL's camera_info struct for each device.
|
|
|
|
*/
|
|
|
|
CameraState(const String8& id, int cost, const std::set<String8>& conflicting);
|
|
|
|
virtual ~CameraState();
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return the status for this device.
|
|
|
|
*
|
|
|
|
* This method acquires mStatusLock.
|
|
|
|
*/
|
|
|
|
StatusInternal getStatus() const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This function updates the status for this camera device, unless the given status
|
|
|
|
* is in the given list of rejected status states, and execute the function passed in
|
|
|
|
* with a signature onStatusUpdateLocked(const String8&, int32_t)
|
|
|
|
* if the status has changed.
|
|
|
|
*
|
|
|
|
* This method is idempotent, and will not result in the function passed to
|
|
|
|
* onStatusUpdateLocked being called more than once for the same arguments.
|
|
|
|
* This method aquires mStatusLock.
|
|
|
|
*/
|
|
|
|
template<class Func>
|
|
|
|
void updateStatus(StatusInternal status,
|
|
|
|
const String8& cameraId,
|
|
|
|
std::initializer_list<StatusInternal> rejectSourceStates,
|
|
|
|
Func onStatusUpdatedLocked);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return the last set CameraParameters object generated from the information returned by
|
|
|
|
* the HAL for this device (or an empty CameraParameters object if none has been set).
|
|
|
|
*/
|
|
|
|
CameraParameters getShimParams() const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Set the CameraParameters for this device.
|
|
|
|
*/
|
|
|
|
void setShimParams(const CameraParameters& params);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return the resource_cost advertised by the HAL for this device.
|
|
|
|
*/
|
|
|
|
int getCost() const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return a set of the IDs of conflicting devices advertised by the HAL for this device.
|
|
|
|
*/
|
|
|
|
std::set<String8> getConflicting() const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Return the ID of this camera device.
|
|
|
|
*/
|
|
|
|
String8 getId() const;
|
|
|
|
|
|
|
|
private:
|
|
|
|
const String8 mId;
|
|
|
|
StatusInternal mStatus; // protected by mStatusLock
|
|
|
|
const int mCost;
|
|
|
|
std::set<String8> mConflicting;
|
|
|
|
mutable Mutex mStatusLock;
|
|
|
|
CameraParameters mShimParams;
|
|
|
|
}; // class CameraState
|
|
|
|
|
|
|
|
// Delay-load the Camera HAL module
|
|
|
|
virtual void onFirstRef();
|
|
|
|
|
|
|
|
// Check if we can connect, before we acquire the service lock.
|
|
|
|
// The returned originalClientPid is the PID of the original process that wants to connect to
|
|
|
|
// camera.
|
|
|
|
// The returned clientPid is the PID of the client that directly connects to camera.
|
|
|
|
// originalClientPid and clientPid are usually the same except when the application uses
|
|
|
|
// mediaserver to connect to camera (using MediaRecorder to connect to camera). In that case,
|
|
|
|
// clientPid is the PID of mediaserver and originalClientPid is the PID of the application.
|
|
|
|
binder::Status validateConnectLocked(const String8& cameraId, const String8& clientName8,
|
|
|
|
/*inout*/int& clientUid, /*inout*/int& clientPid, /*out*/int& originalClientPid) const;
|
|
|
|
binder::Status validateClientPermissionsLocked(const String8& cameraId, const String8& clientName8,
|
|
|
|
/*inout*/int& clientUid, /*inout*/int& clientPid, /*out*/int& originalClientPid) const;
|
|
|
|
|
|
|
|
// Handle active client evictions, and update service state.
|
|
|
|
// Only call with with mServiceLock held.
|
|
|
|
status_t handleEvictionsLocked(const String8& cameraId, int clientPid,
|
|
|
|
apiLevel effectiveApiLevel, const sp<IBinder>& remoteCallback, const String8& packageName,
|
|
|
|
/*out*/
|
|
|
|
sp<BasicClient>* client,
|
|
|
|
std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>* partial);
|
|
|
|
|
|
|
|
// Single implementation shared between the various connect calls
|
|
|
|
template<class CALLBACK, class CLIENT>
|
|
|
|
binder::Status connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
|
|
|
|
int halVersion, const String16& clientPackageName,
|
|
|
|
int clientUid, int clientPid,
|
|
|
|
apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
|
|
|
|
/*out*/sp<CLIENT>& device);
|
|
|
|
|
|
|
|
// Lock guarding camera service state
|
|
|
|
Mutex mServiceLock;
|
|
|
|
|
|
|
|
// Condition to use with mServiceLock, used to handle simultaneous connect calls from clients
|
|
|
|
std::shared_ptr<WaitableMutexWrapper> mServiceLockWrapper;
|
|
|
|
|
|
|
|
// Return NO_ERROR if the device with a give ID can be connected to
|
|
|
|
status_t checkIfDeviceIsUsable(const String8& cameraId) const;
|
|
|
|
|
|
|
|
// Container for managing currently active application-layer clients
|
|
|
|
CameraClientManager mActiveClientManager;
|
|
|
|
|
|
|
|
// Mapping from camera ID -> state for each device, map is protected by mCameraStatesLock
|
|
|
|
std::map<String8, std::shared_ptr<CameraState>> mCameraStates;
|
|
|
|
|
|
|
|
// Mutex guarding mCameraStates map
|
|
|
|
mutable Mutex mCameraStatesLock;
|
|
|
|
|
|
|
|
// Circular buffer for storing event logging for dumps
|
|
|
|
RingBuffer<String8> mEventLog;
|
|
|
|
Mutex mLogLock;
|
|
|
|
|
|
|
|
// Currently allowed user IDs
|
|
|
|
std::set<userid_t> mAllowedUsers;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Check camera capabilities, such as support for basic color operation
|
|
|
|
*/
|
|
|
|
int checkCameraCapabilities(int id, camera_info info, int *latestStrangeCameraId);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Get the camera state for a given camera id.
|
|
|
|
*
|
|
|
|
* This acquires mCameraStatesLock.
|
|
|
|
*/
|
|
|
|
std::shared_ptr<CameraService::CameraState> getCameraState(const String8& cameraId) const;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Evict client who's remote binder has died. Returns true if this client was in the active
|
|
|
|
* list and was disconnected.
|
|
|
|
*
|
|
|
|
* This method acquires mServiceLock.
|
|
|
|
*/
|
|
|
|
bool evictClientIdByRemote(const wp<IBinder>& cameraClient);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Remove the given client from the active clients list; does not disconnect the client.
|
|
|
|
*
|
|
|
|
* This method acquires mServiceLock.
|
|
|
|
*/
|
|
|
|
void removeByClient(const BasicClient* client);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add new client to active clients list after conflicting clients have disconnected using the
|
|
|
|
* values set in the partial descriptor passed in to construct the actual client descriptor.
|
|
|
|
* This is typically called at the end of a connect call.
|
|
|
|
*
|
|
|
|
* This method must be called with mServiceLock held.
|
|
|
|
*/
|
|
|
|
void finishConnectLocked(const sp<BasicClient>& client, const DescriptorPtr& desc);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Returns the integer corresponding to the given camera ID string, or -1 on failure.
|
|
|
|
*/
|
|
|
|
static int cameraIdToInt(const String8& cameraId);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Remove a single client corresponding to the given camera id from the list of active clients.
|
|
|
|
* If none exists, return an empty strongpointer.
|
|
|
|
*
|
|
|
|
* This method must be called with mServiceLock held.
|
|
|
|
*/
|
|
|
|
sp<CameraService::BasicClient> removeClientLocked(const String8& cameraId);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Handle a notification that the current device user has changed.
|
|
|
|
*/
|
|
|
|
void doUserSwitch(const std::vector<int32_t>& newUserIds);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message.
|
|
|
|
*/
|
|
|
|
void logEvent(const char* event);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that a client has been disconnected.
|
|
|
|
*/
|
|
|
|
void logDisconnected(const char* cameraId, int clientPid, const char* clientPackage);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that a client has been connected.
|
|
|
|
*/
|
|
|
|
void logConnected(const char* cameraId, int clientPid, const char* clientPackage);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that a client's connect attempt has been rejected.
|
|
|
|
*/
|
|
|
|
void logRejected(const char* cameraId, int clientPid, const char* clientPackage,
|
|
|
|
const char* reason);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that the current device user has been switched.
|
|
|
|
*/
|
|
|
|
void logUserSwitch(const std::set<userid_t>& oldUserIds,
|
|
|
|
const std::set<userid_t>& newUserIds);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that a device has been removed by the HAL
|
|
|
|
*/
|
|
|
|
void logDeviceRemoved(const char* cameraId, const char* reason);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that a device has been added by the HAL
|
|
|
|
*/
|
|
|
|
void logDeviceAdded(const char* cameraId, const char* reason);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add an event log message that a client has unexpectedly died.
|
|
|
|
*/
|
|
|
|
void logClientDied(int clientPid, const char* reason);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Add a event log message that a serious service-level error has occured
|
|
|
|
* The errorCode should be one of the Android Errors
|
|
|
|
*/
|
|
|
|
void logServiceError(const char* msg, int errorCode);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Dump the event log to an FD
|
|
|
|
*/
|
|
|
|
void dumpEventLog(int fd);
|
|
|
|
|
|
|
|
int mNumberOfCameras;
|
|
|
|
int mNumberOfNormalCameras;
|
|
|
|
|
|
|
|
// sounds
|
|
|
|
MediaPlayer* newMediaPlayer(const char *file);
|
|
|
|
|
|
|
|
Mutex mSoundLock;
|
|
|
|
sp<MediaPlayer> mSoundPlayer[NUM_SOUNDS];
|
|
|
|
int mSoundRef; // reference count (release all MediaPlayer when 0)
|
|
|
|
|
|
|
|
CameraModule* mModule;
|
|
|
|
|
|
|
|
// Guarded by mStatusListenerMutex
|
|
|
|
std::vector<sp<hardware::ICameraServiceListener>> mListenerList;
|
|
|
|
Mutex mStatusListenerLock;
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Update the status for the given camera id (if that device exists), and broadcast the
|
|
|
|
* status update to all current ICameraServiceListeners if the status has changed. Any
|
|
|
|
* statuses in rejectedSourceStates will be ignored.
|
|
|
|
*
|
|
|
|
* This method must be idempotent.
|
|
|
|
* This method acquires mStatusLock and mStatusListenerLock.
|
|
|
|
*/
|
|
|
|
void updateStatus(StatusInternal status,
|
|
|
|
const String8& cameraId,
|
|
|
|
std::initializer_list<StatusInternal>
|
|
|
|
rejectedSourceStates);
|
|
|
|
void updateStatus(StatusInternal status,
|
|
|
|
const String8& cameraId);
|
|
|
|
|
|
|
|
// flashlight control
|
|
|
|
sp<CameraFlashlight> mFlashlight;
|
|
|
|
// guard mTorchStatusMap
|
|
|
|
Mutex mTorchStatusMutex;
|
|
|
|
// guard mTorchClientMap
|
|
|
|
Mutex mTorchClientMapMutex;
|
|
|
|
// guard mTorchUidMap
|
|
|
|
Mutex mTorchUidMapMutex;
|
|
|
|
// camera id -> torch status
|
|
|
|
KeyedVector<String8, hardware::camera::common::V1_0::TorchModeStatus>
|
|
|
|
mTorchStatusMap;
|
|
|
|
// camera id -> torch client binder
|
|
|
|
// only store the last client that turns on each camera's torch mode
|
|
|
|
KeyedVector<String8, sp<IBinder>> mTorchClientMap;
|
|
|
|
// camera id -> [incoming uid, current uid] pair
|
|
|
|
std::map<String8, std::pair<int, int>> mTorchUidMap;
|
|
|
|
|
|
|
|
// check and handle if torch client's process has died
|
|
|
|
void handleTorchClientBinderDied(const wp<IBinder> &who);
|
|
|
|
|
|
|
|
// handle torch mode status change and invoke callbacks. mTorchStatusMutex
|
|
|
|
// should be locked.
|
|
|
|
void onTorchStatusChangedLocked(const String8& cameraId,
|
|
|
|
hardware::camera::common::V1_0::TorchModeStatus newStatus);
|
|
|
|
|
|
|
|
// get a camera's torch status. mTorchStatusMutex should be locked.
|
|
|
|
status_t getTorchStatusLocked(const String8 &cameraId,
|
|
|
|
hardware::camera::common::V1_0::TorchModeStatus *status) const;
|
|
|
|
|
|
|
|
// set a camera's torch status. mTorchStatusMutex should be locked.
|
|
|
|
status_t setTorchStatusLocked(const String8 &cameraId,
|
|
|
|
hardware::camera::common::V1_0::TorchModeStatus status);
|
|
|
|
|
|
|
|
// IBinder::DeathRecipient implementation
|
|
|
|
virtual void binderDied(const wp<IBinder> &who);
|
|
|
|
|
|
|
|
// Helpers
|
|
|
|
|
|
|
|
bool setUpVendorTags();
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Initialize and cache the metadata used by the HAL1 shim for a given cameraId.
|
|
|
|
*
|
|
|
|
* Sets Status to a service-specific error on failure
|
|
|
|
*/
|
|
|
|
binder::Status initializeShimMetadata(int cameraId);
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Get the cached CameraParameters for the camera. If they haven't been
|
|
|
|
* cached yet, then initialize them for the first time.
|
|
|
|
*
|
|
|
|
* Sets Status to a service-specific error on failure
|
|
|
|
*/
|
|
|
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binder::Status getLegacyParametersLazy(int cameraId, /*out*/CameraParameters* parameters);
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static int getCallingPid();
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static int getCallingUid();
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/**
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* Get the current system time as a formatted string.
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*/
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static String8 getFormattedCurrentTime();
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/**
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* Get the camera eviction priority from the current process state given by ActivityManager.
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*/
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static int getCameraPriorityFromProcState(int procState);
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static binder::Status makeClient(const sp<CameraService>& cameraService,
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const sp<IInterface>& cameraCb, const String16& packageName, int cameraId,
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int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
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int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
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/*out*/sp<BasicClient>* client);
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status_t checkCameraAccess(const String16& opPackageName);
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static String8 toString(std::set<userid_t> intSet);
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static int32_t mapToInterface(hardware::camera::common::V1_0::TorchModeStatus status);
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static StatusInternal mapToInternal(hardware::camera::common::V1_0::CameraDeviceStatus status);
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static int32_t mapToInterface(StatusInternal status);
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static sp<ICameraServiceProxy> getCameraServiceProxy();
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static void pingCameraServiceProxy();
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};
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} // namespace android
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#endif
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