CameraService.cpp revision f69c70ded4316ea3ee504ac779bd024433ed4ef7
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#define LOG_TAG "CameraService" 198951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev//#define LOG_NDEBUG 0 2065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <stdio.h> 2265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <sys/types.h> 2365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <pthread.h> 2465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <binder/IPCThreadState.h> 2665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <binder/IServiceManager.h> 2765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <binder/MemoryBase.h> 2865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <binder/MemoryHeapBase.h> 2965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <cutils/atomic.h> 30b5ca4618a722a21f084fe8bfc1c2992749ccd3f0Nipun Kwatra#include <cutils/properties.h> 31bfa33aae4f54c0020a0568b16a3acb7b30b6ca3dJamie Gennis#include <gui/SurfaceTextureClient.h> 32df712ea86e6350f7005a02ab0e1c60c28a343ed0Mathias Agopian#include <gui/Surface.h> 3365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <hardware/hardware.h> 3465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <media/AudioSystem.h> 3565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <media/mediaplayer.h> 3665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <utils/Errors.h> 3765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <utils/Log.h> 3865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <utils/String16.h> 3965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 4065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include "CameraService.h" 415e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala#include "CameraClient.h" 4261ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala#include "Camera2Client.h" 4365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 4465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopiannamespace android { 4565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 4665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 4765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// Logging support -- this is for debugging only 4865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// Use "adb shell dumpsys media.camera -v 1" to change it. 495e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvalavolatile int32_t gLogLevel = 0; 5065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 51b8a805261bf0282e992d3608035e47d05a898710Steve Block#define LOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__); 52b8a805261bf0282e992d3608035e47d05a898710Steve Block#define LOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__); 5365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 5465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic void setLogLevel(int level) { 5565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian android_atomic_write(level, &gLogLevel); 5665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 5765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 5865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 5965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 6065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic int getCallingPid() { 6165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return IPCThreadState::self()->getCallingPid(); 6265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 6365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 6465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic int getCallingUid() { 6565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return IPCThreadState::self()->getCallingUid(); 6665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 6765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 6865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 6965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 7065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// This is ugly and only safe if we never re-create the CameraService, but 7165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// should be ok for now. 7265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic CameraService *gCameraService; 7365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 7465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias AgopianCameraService::CameraService() 758951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev:mSoundRef(0), mModule(0) 7665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian{ 77df64d15042bbd5e0e4933ac49bf3c177dd94752cSteve Block ALOGI("CameraService started (pid=%d)", getpid()); 788951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev gCameraService = this; 798951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev} 8065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 818951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchevvoid CameraService::onFirstRef() 828951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev{ 838951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev BnCameraService::onFirstRef(); 8465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 858951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev if (hw_get_module(CAMERA_HARDWARE_MODULE_ID, 868951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev (const hw_module_t **)&mModule) < 0) { 8729357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Could not load camera HAL module"); 888951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev mNumberOfCameras = 0; 898951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev } 908951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev else { 918951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev mNumberOfCameras = mModule->get_number_of_cameras(); 928951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev if (mNumberOfCameras > MAX_CAMERAS) { 9329357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Number of cameras(%d) > MAX_CAMERAS(%d).", 948951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev mNumberOfCameras, MAX_CAMERAS); 958951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev mNumberOfCameras = MAX_CAMERAS; 968951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev } 978951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev for (int i = 0; i < mNumberOfCameras; i++) { 988951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev setCameraFree(i); 998951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev } 10065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 10165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 10265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 10365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias AgopianCameraService::~CameraService() { 10465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian for (int i = 0; i < mNumberOfCameras; i++) { 10565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (mBusy[i]) { 10629357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("camera %d is still in use in destructor!", i); 10765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 10865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 10965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 11065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian gCameraService = NULL; 11165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 11265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 11365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianint32_t CameraService::getNumberOfCameras() { 11465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return mNumberOfCameras; 11565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 11665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 11765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatus_t CameraService::getCameraInfo(int cameraId, 11865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian struct CameraInfo* cameraInfo) { 1198951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev if (!mModule) { 1208951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev return NO_INIT; 1218951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev } 1228951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev 12365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (cameraId < 0 || cameraId >= mNumberOfCameras) { 12465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return BAD_VALUE; 12565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 12665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1278951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev struct camera_info info; 1288951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev status_t rc = mModule->get_camera_info(cameraId, &info); 1298951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev cameraInfo->facing = info.facing; 1308951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev cameraInfo->orientation = info.orientation; 1318951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev return rc; 13265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 13365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 13465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopiansp<ICamera> CameraService::connect( 13508ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li const sp<ICameraClient>& cameraClient, int cameraId) { 13665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int callingPid = getCallingPid(); 1375861a9a98c641261c4807c976c750e4611b3a57dTyler Luu 13865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("CameraService::connect E (pid %d, id %d)", callingPid, cameraId); 13965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1408951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev if (!mModule) { 14129357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Camera HAL module not loaded"); 1428951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev return NULL; 1438951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev } 1448951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev 14565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sp<Client> client; 14665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (cameraId < 0 || cameraId >= mNumberOfCameras) { 14729357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("CameraService::connect X (pid %d) rejected (invalid cameraId %d).", 14865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian callingPid, cameraId); 14965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return NULL; 15065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 15165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 152a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li char value[PROPERTY_VALUE_MAX]; 153a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li property_get("sys.secpolicy.camera.disabled", value, "0"); 154a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li if (strcmp(value, "1") == 0) { 155a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li // Camera is disabled by DevicePolicyManager. 156df64d15042bbd5e0e4933ac49bf3c177dd94752cSteve Block ALOGI("Camera is disabled. connect X (pid %d) rejected", callingPid); 157a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li return NULL; 158a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li } 159a3355430a36bbfa7b2c0d90eb30834f1c5dac337Wu-cheng Li 16065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian Mutex::Autolock lock(mServiceLock); 16108ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li if (mClient[cameraId] != 0) { 16208ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li client = mClient[cameraId].promote(); 16308ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li if (client != 0) { 16408ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li if (cameraClient->asBinder() == client->getCameraClient()->asBinder()) { 16508ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li LOG1("CameraService::connect X (pid %d) (the same client)", 16608ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li callingPid); 16708ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li return client; 16808ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li } else { 16908ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li ALOGW("CameraService::connect X (pid %d) rejected (existing client).", 17008ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li callingPid); 1712fd2440d0175ca3e196b01b7541a9e0d4ed9a694Wu-cheng Li return NULL; 1722fd2440d0175ca3e196b01b7541a9e0d4ed9a694Wu-cheng Li } 1732fd2440d0175ca3e196b01b7541a9e0d4ed9a694Wu-cheng Li } 17408ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li mClient[cameraId].clear(); 17508ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li } 17608ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li 17708ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li if (mBusy[cameraId]) { 17808ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li ALOGW("CameraService::connect X (pid %d) rejected" 17908ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li " (camera %d is still busy).", callingPid, cameraId); 18008ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li return NULL; 18165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 18265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1838951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev struct camera_info info; 1848951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev if (mModule->get_camera_info(cameraId, &info) != OK) { 18529357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Invalid camera id %d", cameraId); 186b7a67942823e8339eb298238f117aaa6d7b63111Wu-cheng Li return NULL; 187b7a67942823e8339eb298238f117aaa6d7b63111Wu-cheng Li } 1888951a97b1f8462c37e740ea5082eea0445d2c501Iliyan Malchev 18961ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala int deviceVersion; 19061ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala if (mModule->common.module_api_version == CAMERA_MODULE_API_VERSION_2_0) { 19161ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala deviceVersion = info.device_version; 19261ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala } else { 19361ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala deviceVersion = CAMERA_DEVICE_API_VERSION_1_0; 19461ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala } 19561ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala 19661ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala switch(deviceVersion) { 197f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala case CAMERA_DEVICE_API_VERSION_1_0: 198f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala client = new CameraClient(this, cameraClient, cameraId, 19961ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala info.facing, callingPid); 20061ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala break; 201f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala case CAMERA_DEVICE_API_VERSION_2_0: 202f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala client = new Camera2Client(this, cameraClient, cameraId, 20361ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala info.facing, callingPid); 20461ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala break; 205f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala default: 20661ab9f93315ea817cd1ac110e2a95da4dab6b4d1Eino-Ville Talvala ALOGE("Unknown camera device HAL version: %d", deviceVersion); 2075861a9a98c641261c4807c976c750e4611b3a57dTyler Luu return NULL; 2085861a9a98c641261c4807c976c750e4611b3a57dTyler Luu } 2095861a9a98c641261c4807c976c750e4611b3a57dTyler Luu 210f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala if (client->initialize(mModule) != OK) { 211f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala return NULL; 212f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala } 213f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala 21465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mClient[cameraId] = client; 2152fd2440d0175ca3e196b01b7541a9e0d4ed9a694Wu-cheng Li LOG1("CameraService::connect X (id %d)", cameraId); 21665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return client; 21765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 21865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 21965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianvoid CameraService::removeClient(const sp<ICameraClient>& cameraClient) { 22065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int callingPid = getCallingPid(); 22165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("CameraService::removeClient E (pid %d)", callingPid); 22265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 22365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian for (int i = 0; i < mNumberOfCameras; i++) { 22465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // Declare this before the lock to make absolutely sure the 22565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // destructor won't be called with the lock held. 22665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sp<Client> client; 22765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 22865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian Mutex::Autolock lock(mServiceLock); 22965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 23065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // This happens when we have already disconnected (or this is 23165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // just another unused camera). 23265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (mClient[i] == 0) continue; 23365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 23465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // Promote mClient. It can fail if we are called from this path: 23565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // Client::~Client() -> disconnect() -> removeClient(). 23665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian client = mClient[i].promote(); 23765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 23865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (client == 0) { 23965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mClient[i].clear(); 24065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian continue; 24165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 24265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 24365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (cameraClient->asBinder() == client->getCameraClient()->asBinder()) { 24465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // Found our camera, clear and leave. 24565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("removeClient: clear camera %d", i); 24665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mClient[i].clear(); 24765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian break; 24865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 24965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 25065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 25165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("CameraService::removeClient X (pid %d)", callingPid); 25265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 25365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 254d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young ParkCameraService::Client* CameraService::getClientByIdUnsafe(int cameraId) { 25565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (cameraId < 0 || cameraId >= mNumberOfCameras) return NULL; 256d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park return mClient[cameraId].unsafe_get(); 257d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park} 258d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park 259d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young ParkMutex* CameraService::getClientLockById(int cameraId) { 260d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park if (cameraId < 0 || cameraId >= mNumberOfCameras) return NULL; 261d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park return &mClientLock[cameraId]; 26265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 26365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 26465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatus_t CameraService::onTransact( 26565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) { 26665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // Permission checks 26765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian switch (code) { 26865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian case BnCameraService::CONNECT: 26965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian const int pid = getCallingPid(); 27065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian const int self_pid = getpid(); 27165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (pid != self_pid) { 27265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // we're called from a different process, do the real check 27365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (!checkCallingPermission( 27465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian String16("android.permission.CAMERA"))) { 27565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian const int uid = getCallingUid(); 27629357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Permission Denial: " 27765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian "can't use the camera pid=%d, uid=%d", pid, uid); 27865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return PERMISSION_DENIED; 27965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 28065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 28165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian break; 28265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 28365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 28465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return BnCameraService::onTransact(code, data, reply, flags); 28565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 28665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 28765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// The reason we need this busy bit is a new CameraService::connect() request 28865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// may come in while the previous Client's destructor has not been run or is 28965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// still running. If the last strong reference of the previous Client is gone 29065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// but the destructor has not been finished, we should not allow the new Client 29165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// to be created because we need to wait for the previous Client to tear down 29265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// the hardware first. 29365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianvoid CameraService::setCameraBusy(int cameraId) { 29465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian android_atomic_write(1, &mBusy[cameraId]); 29565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 29665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 29765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianvoid CameraService::setCameraFree(int cameraId) { 29865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian android_atomic_write(0, &mBusy[cameraId]); 29965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 30065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 30165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// We share the media players for shutter and recording sound for all clients. 30265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// A reference count is kept to determine when we will actually release the 30365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// media players. 30465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 305ff4f55c8d77e276dbcceedb4e560ca1d91ba38baChih-Chung ChangMediaPlayer* CameraService::newMediaPlayer(const char *file) { 30665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian MediaPlayer* mp = new MediaPlayer(); 30765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (mp->setDataSource(file, NULL) == NO_ERROR) { 30860a78ac9535878984b0777788760b9ee7465c5e6Eino-Ville Talvala mp->setAudioStreamType(AUDIO_STREAM_ENFORCED_AUDIBLE); 30965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mp->prepare(); 31065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } else { 31129357bc2c0dd7c43ad3bd0c8e3efa4e6fd9bfd47Steve Block ALOGE("Failed to load CameraService sounds: %s", file); 31265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return NULL; 31365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 31465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return mp; 31565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 31665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 31765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianvoid CameraService::loadSound() { 31865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian Mutex::Autolock lock(mSoundLock); 31965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("CameraService::loadSound ref=%d", mSoundRef); 32065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (mSoundRef++) return; 32165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 32265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mSoundPlayer[SOUND_SHUTTER] = newMediaPlayer("/system/media/audio/ui/camera_click.ogg"); 32365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mSoundPlayer[SOUND_RECORDING] = newMediaPlayer("/system/media/audio/ui/VideoRecord.ogg"); 32465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 32565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 32665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianvoid CameraService::releaseSound() { 32765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian Mutex::Autolock lock(mSoundLock); 32865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("CameraService::releaseSound ref=%d", mSoundRef); 32965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (--mSoundRef) return; 33065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 33165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian for (int i = 0; i < NUM_SOUNDS; i++) { 33265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (mSoundPlayer[i] != 0) { 33365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mSoundPlayer[i]->disconnect(); 33465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mSoundPlayer[i].clear(); 33565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 33665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 33765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 33865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 33965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianvoid CameraService::playSound(sound_kind kind) { 34065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian LOG1("playSound(%d)", kind); 34165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian Mutex::Autolock lock(mSoundLock); 34265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sp<MediaPlayer> player = mSoundPlayer[kind]; 34365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (player != 0) { 3448888a75f01d904541e409e858d23e4150ace34b6Chih-Chung Chang player->seekTo(0); 3458888a75f01d904541e409e858d23e4150ace34b6Chih-Chung Chang player->start(); 34665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 34765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 34865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 34965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 35065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 35165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias AgopianCameraService::Client::Client(const sp<CameraService>& cameraService, 352b7a67942823e8339eb298238f117aaa6d7b63111Wu-cheng Li const sp<ICameraClient>& cameraClient, 35308ad5efcef90e24db2863c0f85972ed05fe848a2Wu-cheng Li int cameraId, int cameraFacing, int clientPid) { 35465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int callingPid = getCallingPid(); 3552fd2440d0175ca3e196b01b7541a9e0d4ed9a694Wu-cheng Li LOG1("Client::Client E (pid %d, id %d)", callingPid, cameraId); 35665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 35765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mCameraService = cameraService; 35865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mCameraClient = cameraClient; 35965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mCameraId = cameraId; 360e09591eff55fdff1868b32c3e046c62f800330fcWu-cheng Li mCameraFacing = cameraFacing; 36165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian mClientPid = clientPid; 362d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park mDestructionStarted = false; 3635e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala 36465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian cameraService->setCameraBusy(cameraId); 36565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian cameraService->loadSound(); 3662fd2440d0175ca3e196b01b7541a9e0d4ed9a694Wu-cheng Li LOG1("Client::Client X (pid %d, id %d)", callingPid, cameraId); 36765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 36865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 36965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// tear down the client 37065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias AgopianCameraService::Client::~Client() { 371f69c70ded4316ea3ee504ac779bd024433ed4ef7Eino-Ville Talvala mCameraService->releaseSound(); 37265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 37365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 37465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 37565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 376d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young ParkMutex* CameraService::Client::getClientLockFromCookie(void* user) { 377d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park return gCameraService->getClientLockById((int) user); 378d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park} 379d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park 380d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park// Provide client pointer for callbacks. Client lock returned from getClientLockFromCookie should 381d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park// be acquired for this to be safe 382d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young ParkCameraService::Client* CameraService::Client::getClientFromCookie(void* user) { 383d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park Client* client = gCameraService->getClientByIdUnsafe((int) user); 38465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 38565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // This could happen if the Client is in the process of shutting down (the 38665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // last strong reference is gone, but the destructor hasn't finished 38765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // stopping the hardware). 388d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park if (client == NULL) return NULL; 389d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park 390d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park // destruction already started, so should not be accessed 391d8973a71a3d1dd670e5dcdf6e94ec0cd45444eecKeun young Park if (client->mDestructionStarted) return NULL; 39265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 39365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return client; 39465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 39565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 3965e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvalavoid CameraService::Client::disconnect() { 3975e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala mCameraService->removeClient(mCameraClient); 3985e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala mCameraService->setCameraFree(mCameraId); 399e09591eff55fdff1868b32c3e046c62f800330fcWu-cheng Li} 400e09591eff55fdff1868b32c3e046c62f800330fcWu-cheng Li 40165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 40265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 40365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic const int kDumpLockRetries = 50; 40465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic const int kDumpLockSleep = 60000; 40565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 40665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatic bool tryLock(Mutex& mutex) 40765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian{ 40865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian bool locked = false; 40965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian for (int i = 0; i < kDumpLockRetries; ++i) { 41065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (mutex.tryLock() == NO_ERROR) { 41165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian locked = true; 41265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian break; 41365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 41465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian usleep(kDumpLockSleep); 41565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 41665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return locked; 41765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 41865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 41965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianstatus_t CameraService::dump(int fd, const Vector<String16>& args) { 42065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static const char* kDeadlockedString = "CameraService may be deadlocked\n"; 42165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 42265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian const size_t SIZE = 256; 42365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian char buffer[SIZE]; 42465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian String8 result; 42565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (checkCallingPermission(String16("android.permission.DUMP")) == false) { 42665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian snprintf(buffer, SIZE, "Permission Denial: " 42765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian "can't dump CameraService from pid=%d, uid=%d\n", 42865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian getCallingPid(), 42965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian getCallingUid()); 43065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian result.append(buffer); 43165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian write(fd, result.string(), result.size()); 43265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } else { 43365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian bool locked = tryLock(mServiceLock); 43465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // failed to lock - CameraService is probably deadlocked 43565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (!locked) { 43665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian String8 result(kDeadlockedString); 43765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian write(fd, result.string(), result.size()); 43865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 43965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 44065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian bool hasClient = false; 44165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian for (int i = 0; i < mNumberOfCameras; i++) { 44265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sp<Client> client = mClient[i].promote(); 44365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (client == 0) continue; 44465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian hasClient = true; 4455e08d60617fc63c2e41f9069ff89f5c00db2617dEino-Ville Talvala client->dump(fd, args); 44665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 44765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (!hasClient) { 44865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian result.append("No camera client yet.\n"); 44965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian write(fd, result.string(), result.size()); 45065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 45165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 45265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (locked) mServiceLock.unlock(); 45365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 45465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // change logging level 45565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int n = args.size(); 45665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian for (int i = 0; i + 1 < n; i++) { 45765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian if (args[i] == String16("-v")) { 45865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian String8 levelStr(args[i+1]); 45965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int level = atoi(levelStr.string()); 46065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian sprintf(buffer, "Set Log Level to %d", level); 46165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian result.append(buffer); 46265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian setLogLevel(level); 46365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 46465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 46565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian } 46665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian return NO_ERROR; 46765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian} 46865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 46965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian}; // namespace android 470