CameraService.h revision 5e08d60617fc63c2e41f9069ff89f5c00db2617d
165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian/* 265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** Copyright (C) 2008, The Android Open Source Project 465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** Licensed under the Apache License, Version 2.0 (the "License"); 665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** you may not use this file except in compliance with the License. 765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** You may obtain a copy of the License at 865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** http://www.apache.org/licenses/LICENSE-2.0 1065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 1165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** Unless required by applicable law or agreed to in writing, software 1265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** distributed under the License is distributed on an "AS IS" BASIS, 1365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** See the License for the specific language governing permissions and 1565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** limitations under the License. 1665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian*/ 1765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#ifndef ANDROID_SERVERS_CAMERA_CAMERASERVICE_H 1965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#define ANDROID_SERVERS_CAMERA_CAMERASERVICE_H 2065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 215462fc9a38fa8c9dff434cd53fa5fb1782ae3042Mathias Agopian#include <binder/BinderService.h> 2265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <camera/ICameraService.h> 238951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev#include <hardware/camera.h> 2465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian/* This needs to be increased if we can have more cameras */ 2665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#define MAX_CAMERAS 2 2765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopiannamespace android { 2965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 305e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvalaextern volatile int32_t gLogLevel; 315e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 3265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianclass MemoryHeapBase; 3365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianclass MediaPlayer; 348951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchevclass CameraHardwareInterface; 3565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 365462fc9a38fa8c9dff434cd53fa5fb1782ae3042Mathias Agopianclass CameraService : 375462fc9a38fa8c9dff434cd53fa5fb1782ae3042Mathias Agopian public BinderService<CameraService>, 385462fc9a38fa8c9dff434cd53fa5fb1782ae3042Mathias Agopian public BnCameraService 3965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian{ 405462fc9a38fa8c9dff434cd53fa5fb1782ae3042Mathias Agopian friend class BinderService<CameraService>; 4165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianpublic: 425e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala class Client; 435462fc9a38fa8c9dff434cd53fa5fb1782ae3042Mathias Agopian static char const* getServiceName() { return "media.camera"; } 4465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 4565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian CameraService(); 4665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian virtual ~CameraService(); 4765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 4865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian virtual int32_t getNumberOfCameras(); 4965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian virtual status_t getCameraInfo(int cameraId, 5065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian struct CameraInfo* cameraInfo); 5108ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient, int cameraId); 5265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian virtual void removeClient(const sp<ICameraClient>& cameraClient); 53d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park // returns plain pointer of client. Note that mClientLock should be acquired to 54d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park // prevent the client from destruction. The result can be NULL. 55d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park virtual Client* getClientByIdUnsafe(int cameraId); 56d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park virtual Mutex* getClientLockById(int cameraId); 5765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 5865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian virtual status_t dump(int fd, const Vector<String16>& args); 5965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian virtual status_t onTransact(uint32_t code, const Parcel& data, 6065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian Parcel* reply, uint32_t flags); 618951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev virtual void onFirstRef(); 6265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 6365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian enum sound_kind { 6465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian SOUND_SHUTTER = 0, 6565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian SOUND_RECORDING = 1, 6665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NUM_SOUNDS 6765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 6865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 6965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian void loadSound(); 7065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian void playSound(sound_kind kind); 7165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian void releaseSound(); 7265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 7365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian class Client : public BnCamera 7465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian { 7565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian public: 7665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // ICamera interface (see ICamera for details) 775e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual void disconnect(); 785e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t connect(const sp<ICameraClient>& client) = 0; 795e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t lock() = 0; 805e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t unlock() = 0; 815e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t setPreviewDisplay(const sp<Surface>& surface) = 0; 825e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t setPreviewTexture(const sp<ISurfaceTexture>& surfaceTexture) = 0; 835e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual void setPreviewCallbackFlag(int flag) = 0; 845e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t startPreview() = 0; 855e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual void stopPreview() = 0; 865e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual bool previewEnabled() = 0; 875e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t storeMetaDataInBuffers(bool enabled) = 0; 885e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t startRecording() = 0; 895e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual void stopRecording() = 0; 905e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual bool recordingEnabled() = 0; 915e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual void releaseRecordingFrame(const sp<IMemory>& mem) = 0; 925e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t autoFocus() = 0; 935e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t cancelAutoFocus() = 0; 945e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t takePicture(int msgType) = 0; 955e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t setParameters(const String8& params) = 0; 965e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual String8 getParameters() const = 0; 975e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0; 985e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 995e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala // Interface used by CameraService 1005e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala Client(const sp<CameraService>& cameraService, 1015e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala const sp<ICameraClient>& cameraClient, 1025e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala int cameraId, 1035e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala int cameraFacing, 1045e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala int clientPid); 1055e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala ~Client(); 10665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 10765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // return our camera client 1085e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala const sp<ICameraClient>& getCameraClient() { 1095e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala return mCameraClient; 1105e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala } 1115e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 1125e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala virtual status_t dump(int fd, const Vector<String16>& args) = 0; 1135e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 1145e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala protected: 115d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park static Mutex* getClientLockFromCookie(void* user); 116d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park // convert client from cookie. Client lock should be acquired before getting Client. 117d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park static Client* getClientFromCookie(void* user); 1185e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 1195e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala // the instance is in the middle of destruction. When this is set, 1205e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala // the instance should not be accessed from callback. 1215e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala // CameraService's mClientLock should be acquired to access this. 1225e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala bool mDestructionStarted; 1230ed3ec00d0242c9dc77532fe0cf0082645b6662cJamie Gennis 12465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // these are initialized in the constructor. 12565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sp<CameraService> mCameraService; // immutable after constructor 12665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sp<ICameraClient> mCameraClient; 12765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int mCameraId; // immutable after constructor 128012716a857641a977afd16ff6be4bf66fc403884Wu-cheng Li int mCameraFacing; // immutable after constructor 12965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian pid_t mClientPid; 13065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1315e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala }; 13265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1335e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvalaprivate: 1345e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala Mutex mServiceLock; 1355e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala wp<Client> mClient[MAX_CAMERAS]; // protected by mServiceLock 1365e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala Mutex mClientLock[MAX_CAMERAS]; // prevent Client destruction inside callbacks 1375e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala int mNumberOfCameras; 13865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1395e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala // atomics to record whether the hardware is allocated to some client. 1405e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala volatile int32_t mBusy[MAX_CAMERAS]; 1415e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala void setCameraBusy(int cameraId); 1425e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala void setCameraFree(int cameraId); 143d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park 1445e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala // sounds 1455e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala MediaPlayer* newMediaPlayer(const char *file); 1465e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 1475e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala Mutex mSoundLock; 1485e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala sp<MediaPlayer> mSoundPlayer[NUM_SOUNDS]; 1495e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala int mSoundRef; // reference count (release all MediaPlayer when 0) 1508951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev 1518951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev camera_module_t *mModule; 15265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian}; 15365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 15465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} // namespace android 15565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 15665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#endif 157