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Mathias Agopian65ab4712010-07-14 17:59:35 -07001/*
Ruben Brunkd1176ef2014-02-21 10:51:38 -08002 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
Mathias Agopian65ab4712010-07-14 17:59:35 -070016
17#define LOG_TAG "CameraService"
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -070018#define ATRACE_TAG ATRACE_TAG_CAMERA
Iliyan Malchev8951a972011-04-14 16:55:59 -070019//#define LOG_NDEBUG 0
Mathias Agopian65ab4712010-07-14 17:59:35 -070020
Ruben Brunkcc776712015-02-17 20:18:47 -080021#include <algorithm>
22#include <climits>
Mathias Agopian65ab4712010-07-14 17:59:35 -070023#include <stdio.h>
Ruben Brunkcc776712015-02-17 20:18:47 -080024#include <cstring>
25#include <ctime>
26#include <string>
Mathias Agopian65ab4712010-07-14 17:59:35 -070027#include <sys/types.h>
Ruben Brunkcc776712015-02-17 20:18:47 -080028#include <inttypes.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070029#include <pthread.h>
30
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -080031#include <android/hardware/ICamera.h>
32#include <android/hardware/ICameraClient.h>
33
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -080034#include <binder/AppOpsManager.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070035#include <binder/IPCThreadState.h>
36#include <binder/IServiceManager.h>
37#include <binder/MemoryBase.h>
38#include <binder/MemoryHeapBase.h>
Ruben Brunkcc776712015-02-17 20:18:47 -080039#include <binder/ProcessInfoService.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070040#include <cutils/atomic.h>
Nipun Kwatrab5ca4612010-09-11 19:31:10 -070041#include <cutils/properties.h>
Mathias Agopiandf712ea2012-02-25 18:48:35 -080042#include <gui/Surface.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070043#include <hardware/hardware.h>
44#include <media/AudioSystem.h>
Andreas Huber1b86fe02014-01-29 11:13:26 -080045#include <media/IMediaHTTPService.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070046#include <media/mediaplayer.h>
Ruben Brunk99e69712015-05-26 17:25:07 -070047#include <mediautils/BatteryNotifier.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070048#include <utils/Errors.h>
49#include <utils/Log.h>
50#include <utils/String16.h>
Ruben Brunkd1176ef2014-02-21 10:51:38 -080051#include <utils/Trace.h>
Chien-Yu Chen98a668f2015-12-18 14:10:33 -080052#include <private/android_filesystem_config.h>
Ruben Brunkd1176ef2014-02-21 10:51:38 -080053#include <system/camera_vendor_tags.h>
Ruben Brunkb2119af2014-05-09 19:57:56 -070054#include <system/camera_metadata.h>
55#include <system/camera.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070056
57#include "CameraService.h"
Eino-Ville Talvala7b82efe2013-07-25 17:12:35 -070058#include "api1/CameraClient.h"
59#include "api1/Camera2Client.h"
Eino-Ville Talvala7b82efe2013-07-25 17:12:35 -070060#include "api2/CameraDeviceClient.h"
Igor Murashkinff3e31d2013-10-23 16:40:06 -070061#include "utils/CameraTraces.h"
Mathias Agopian65ab4712010-07-14 17:59:35 -070062
Yin-Chia Yeh0dea57f2015-12-09 16:46:07 -080063namespace {
64 const char* kPermissionServiceName = "permission";
65}; // namespace anonymous
66
Mathias Agopian65ab4712010-07-14 17:59:35 -070067namespace android {
68
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -080069using binder::Status;
70using namespace hardware;
71
Mathias Agopian65ab4712010-07-14 17:59:35 -070072// ----------------------------------------------------------------------------
73// Logging support -- this is for debugging only
74// Use "adb shell dumpsys media.camera -v 1" to change it.
Eino-Ville Talvala5e08d602012-05-16 14:59:25 -070075volatile int32_t gLogLevel = 0;
Mathias Agopian65ab4712010-07-14 17:59:35 -070076
Steve Blockb8a80522011-12-20 16:23:08 +000077#define LOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__);
78#define LOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__);
Mathias Agopian65ab4712010-07-14 17:59:35 -070079
80static void setLogLevel(int level) {
81 android_atomic_write(level, &gLogLevel);
82}
83
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -080084// Convenience methods for constructing binder::Status objects for error returns
85
86#define STATUS_ERROR(errorCode, errorString) \
87 binder::Status::fromServiceSpecificError(errorCode, \
88 String8::format("%s:%d: %s", __FUNCTION__, __LINE__, errorString))
89
90#define STATUS_ERROR_FMT(errorCode, errorString, ...) \
91 binder::Status::fromServiceSpecificError(errorCode, \
92 String8::format("%s:%d: " errorString, __FUNCTION__, __LINE__, \
93 __VA_ARGS__))
94
Mathias Agopian65ab4712010-07-14 17:59:35 -070095// ----------------------------------------------------------------------------
96
Igor Murashkincba2c162013-03-20 15:56:31 -070097extern "C" {
98static void camera_device_status_change(
99 const struct camera_module_callbacks* callbacks,
100 int camera_id,
101 int new_status) {
102 sp<CameraService> cs = const_cast<CameraService*>(
Ruben Brunkcc776712015-02-17 20:18:47 -0800103 static_cast<const CameraService*>(callbacks));
Igor Murashkincba2c162013-03-20 15:56:31 -0700104
Ruben Brunkcc776712015-02-17 20:18:47 -0800105 cs->onDeviceStatusChanged(static_cast<camera_device_status_t>(camera_id),
106 static_cast<camera_device_status_t>(new_status));
Igor Murashkincba2c162013-03-20 15:56:31 -0700107}
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800108
109static void torch_mode_status_change(
110 const struct camera_module_callbacks* callbacks,
111 const char* camera_id,
112 int new_status) {
113 if (!callbacks || !camera_id) {
114 ALOGE("%s invalid parameters. callbacks %p, camera_id %p", __FUNCTION__,
115 callbacks, camera_id);
116 }
117 sp<CameraService> cs = const_cast<CameraService*>(
118 static_cast<const CameraService*>(callbacks));
119
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800120 int32_t status;
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800121 switch (new_status) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800122 case TORCH_MODE_STATUS_NOT_AVAILABLE:
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800123 status = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
124 break;
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800125 case TORCH_MODE_STATUS_AVAILABLE_OFF:
126 status = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
127 break;
128 case TORCH_MODE_STATUS_AVAILABLE_ON:
129 status = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800130 break;
131 default:
132 ALOGE("Unknown torch status %d", new_status);
133 return;
134 }
135
136 cs->onTorchStatusChanged(
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800137 String8(camera_id),
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800138 status);
139}
Igor Murashkincba2c162013-03-20 15:56:31 -0700140} // extern "C"
141
Mathias Agopian65ab4712010-07-14 17:59:35 -0700142// ----------------------------------------------------------------------------
143
144// This is ugly and only safe if we never re-create the CameraService, but
145// should be ok for now.
146static CameraService *gCameraService;
147
Eino-Ville Talvala49c97052016-01-12 14:29:40 -0800148CameraService::CameraService() :
149 mEventLog(DEFAULT_EVENT_LOG_LENGTH),
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800150 mNumberOfCameras(0), mNumberOfNormalCameras(0),
151 mSoundRef(0), mModule(nullptr) {
Steve Blockdf64d152012-01-04 20:05:49 +0000152 ALOGI("CameraService started (pid=%d)", getpid());
Mathias Agopian65ab4712010-07-14 17:59:35 -0700153 gCameraService = this;
Igor Murashkinbfc99152013-02-27 12:55:20 -0800154
Igor Murashkincba2c162013-03-20 15:56:31 -0700155 this->camera_device_status_change = android::camera_device_status_change;
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800156 this->torch_mode_status_change = android::torch_mode_status_change;
157
Ruben Brunkcc776712015-02-17 20:18:47 -0800158 mServiceLockWrapper = std::make_shared<WaitableMutexWrapper>(&mServiceLock);
Mathias Agopian65ab4712010-07-14 17:59:35 -0700159}
160
Iliyan Malchev8951a972011-04-14 16:55:59 -0700161void CameraService::onFirstRef()
162{
Ruben Brunkcc776712015-02-17 20:18:47 -0800163 ALOGI("CameraService process starting");
Igor Murashkin634a5152013-02-20 17:15:11 -0800164
Iliyan Malchev8951a972011-04-14 16:55:59 -0700165 BnCameraService::onFirstRef();
166
Ruben Brunk99e69712015-05-26 17:25:07 -0700167 // Update battery life tracking if service is restarting
168 BatteryNotifier& notifier(BatteryNotifier::getInstance());
169 notifier.noteResetCamera();
170 notifier.noteResetFlashlight();
171
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800172 camera_module_t *rawModule;
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700173 int err = hw_get_module(CAMERA_HARDWARE_MODULE_ID,
174 (const hw_module_t **)&rawModule);
175 if (err < 0) {
176 ALOGE("Could not load camera HAL module: %d (%s)", err, strerror(-err));
177 logServiceError("Could not load camera HAL module", err);
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700178 return;
Iliyan Malchev8951a972011-04-14 16:55:59 -0700179 }
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800180
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700181 mModule = new CameraModule(rawModule);
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700182 err = mModule->init();
183 if (err != OK) {
184 ALOGE("Could not initialize camera HAL module: %d (%s)", err,
185 strerror(-err));
186 logServiceError("Could not initialize camera HAL module", err);
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800187
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700188 delete mModule;
189 mModule = nullptr;
190 return;
Iliyan Malchev8951a972011-04-14 16:55:59 -0700191 }
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700192 ALOGI("Loaded \"%s\" camera module", mModule->getModuleName());
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700193
194 mNumberOfCameras = mModule->getNumberOfCameras();
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700195 mNumberOfNormalCameras = mNumberOfCameras;
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700196
Yin-Chia Yehd4a653a2015-10-14 11:05:44 -0700197 // Setup vendor tags before we call get_camera_info the first time
198 // because HAL might need to setup static vendor keys in get_camera_info
199 VendorTagDescriptor::clearGlobalVendorTagDescriptor();
200 if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_2) {
201 setUpVendorTags();
202 }
203
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700204 mFlashlight = new CameraFlashlight(*mModule, *this);
205 status_t res = mFlashlight->findFlashUnits();
206 if (res) {
207 // impossible because we haven't open any camera devices.
208 ALOGE("Failed to find flash units.");
209 }
210
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700211 int latestStrangeCameraId = INT_MAX;
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700212 for (int i = 0; i < mNumberOfCameras; i++) {
213 String8 cameraId = String8::format("%d", i);
214
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700215 // Get camera info
216
217 struct camera_info info;
218 bool haveInfo = true;
219 status_t rc = mModule->getCameraInfo(i, &info);
220 if (rc != NO_ERROR) {
221 ALOGE("%s: Received error loading camera info for device %d, cost and"
222 " conflicting devices fields set to defaults for this device.",
223 __FUNCTION__, i);
224 haveInfo = false;
225 }
226
227 // Check for backwards-compatibility support
228 if (haveInfo) {
229 if (checkCameraCapabilities(i, info, &latestStrangeCameraId) != OK) {
230 delete mModule;
231 mModule = nullptr;
232 return;
233 }
234 }
235
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700236 // Defaults to use for cost and conflicting devices
237 int cost = 100;
238 char** conflicting_devices = nullptr;
239 size_t conflicting_devices_length = 0;
240
241 // If using post-2.4 module version, query the cost + conflicting devices from the HAL
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700242 if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4 && haveInfo) {
243 cost = info.resource_cost;
244 conflicting_devices = info.conflicting_devices;
245 conflicting_devices_length = info.conflicting_devices_length;
Eino-Ville Talvala1527f072015-04-07 15:55:31 -0700246 }
247
248 std::set<String8> conflicting;
249 for (size_t i = 0; i < conflicting_devices_length; i++) {
250 conflicting.emplace(String8(conflicting_devices[i]));
251 }
252
253 // Initialize state for each camera device
254 {
255 Mutex::Autolock lock(mCameraStatesLock);
256 mCameraStates.emplace(cameraId, std::make_shared<CameraState>(cameraId, cost,
257 conflicting));
258 }
259
260 if (mFlashlight->hasFlashUnit(cameraId)) {
261 mTorchStatusMap.add(cameraId,
262 ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF);
263 }
264 }
265
266 if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_1) {
267 mModule->setCallbacks(this);
268 }
269
Ruben Brunk2823ce02015-05-19 17:25:13 -0700270 CameraService::pingCameraServiceProxy();
271}
272
Eino-Ville Talvala412fe562015-08-20 17:08:32 -0700273sp<ICameraServiceProxy> CameraService::getCameraServiceProxy() {
Ruben Brunk2823ce02015-05-19 17:25:13 -0700274 sp<IServiceManager> sm = defaultServiceManager();
275 sp<IBinder> binder = sm->getService(String16("media.camera.proxy"));
276 if (binder == nullptr) {
Eino-Ville Talvala412fe562015-08-20 17:08:32 -0700277 return nullptr;
Ruben Brunk2823ce02015-05-19 17:25:13 -0700278 }
279 sp<ICameraServiceProxy> proxyBinder = interface_cast<ICameraServiceProxy>(binder);
Eino-Ville Talvala412fe562015-08-20 17:08:32 -0700280 return proxyBinder;
281}
282
283void CameraService::pingCameraServiceProxy() {
284 sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
285 if (proxyBinder == nullptr) return;
Ruben Brunk2823ce02015-05-19 17:25:13 -0700286 proxyBinder->pingForUserUpdate();
Iliyan Malchev8951a972011-04-14 16:55:59 -0700287}
288
Mathias Agopian65ab4712010-07-14 17:59:35 -0700289CameraService::~CameraService() {
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800290 if (mModule) {
291 delete mModule;
Ruben Brunkcc776712015-02-17 20:18:47 -0800292 mModule = nullptr;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800293 }
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800294 VendorTagDescriptor::clearGlobalVendorTagDescriptor();
Ruben Brunkcc776712015-02-17 20:18:47 -0800295 gCameraService = nullptr;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700296}
297
Ruben Brunkcc776712015-02-17 20:18:47 -0800298void CameraService::onDeviceStatusChanged(camera_device_status_t cameraId,
299 camera_device_status_t newStatus) {
300 ALOGI("%s: Status changed for cameraId=%d, newStatus=%d", __FUNCTION__,
Igor Murashkincba2c162013-03-20 15:56:31 -0700301 cameraId, newStatus);
302
Ruben Brunkcc776712015-02-17 20:18:47 -0800303 String8 id = String8::format("%d", cameraId);
304 std::shared_ptr<CameraState> state = getCameraState(id);
305
306 if (state == nullptr) {
Igor Murashkincba2c162013-03-20 15:56:31 -0700307 ALOGE("%s: Bad camera ID %d", __FUNCTION__, cameraId);
308 return;
309 }
310
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800311 int32_t oldStatus = state->getStatus();
Ruben Brunkcc776712015-02-17 20:18:47 -0800312
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800313 if (oldStatus == static_cast<int32_t>(newStatus)) {
Ruben Brunkcc776712015-02-17 20:18:47 -0800314 ALOGE("%s: State transition to the same status %#x not allowed", __FUNCTION__, newStatus);
Igor Murashkincba2c162013-03-20 15:56:31 -0700315 return;
316 }
317
Igor Murashkincba2c162013-03-20 15:56:31 -0700318 if (newStatus == CAMERA_DEVICE_STATUS_NOT_PRESENT) {
Ruben Brunka8ca9152015-04-07 14:23:40 -0700319 logDeviceRemoved(id, String8::format("Device status changed from %d to %d", oldStatus,
320 newStatus));
Ruben Brunkcc776712015-02-17 20:18:47 -0800321 sp<BasicClient> clientToDisconnect;
Igor Murashkincba2c162013-03-20 15:56:31 -0700322 {
Ruben Brunkcc776712015-02-17 20:18:47 -0800323 // Don't do this in updateStatus to avoid deadlock over mServiceLock
324 Mutex::Autolock lock(mServiceLock);
Igor Murashkincba2c162013-03-20 15:56:31 -0700325
Ruben Brunkcc776712015-02-17 20:18:47 -0800326 // Set the device status to NOT_PRESENT, clients will no longer be able to connect
327 // to this device until the status changes
328 updateStatus(ICameraServiceListener::STATUS_NOT_PRESENT, id);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700329
Ruben Brunkcc776712015-02-17 20:18:47 -0800330 // Remove cached shim parameters
331 state->setShimParams(CameraParameters());
Igor Murashkincba2c162013-03-20 15:56:31 -0700332
Ruben Brunkcc776712015-02-17 20:18:47 -0800333 // Remove the client from the list of active clients
334 clientToDisconnect = removeClientLocked(id);
335
336 // Notify the client of disconnection
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800337 clientToDisconnect->notifyError(
338 hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
Ruben Brunkcc776712015-02-17 20:18:47 -0800339 CaptureResultExtras{});
Igor Murashkincba2c162013-03-20 15:56:31 -0700340 }
341
Ruben Brunkcc776712015-02-17 20:18:47 -0800342 ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
343 __FUNCTION__, id.string());
Igor Murashkincba2c162013-03-20 15:56:31 -0700344
Ruben Brunkcc776712015-02-17 20:18:47 -0800345 // Disconnect client
346 if (clientToDisconnect.get() != nullptr) {
347 // Ensure not in binder RPC so client disconnect PID checks work correctly
348 LOG_ALWAYS_FATAL_IF(getCallingPid() != getpid(),
349 "onDeviceStatusChanged must be called from the camera service process!");
350 clientToDisconnect->disconnect();
Igor Murashkincba2c162013-03-20 15:56:31 -0700351 }
352
Ruben Brunkcc776712015-02-17 20:18:47 -0800353 } else {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800354 if (oldStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
Ruben Brunka8ca9152015-04-07 14:23:40 -0700355 logDeviceAdded(id, String8::format("Device status changed from %d to %d", oldStatus,
356 newStatus));
357 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800358 updateStatus(static_cast<int32_t>(newStatus), id);
Igor Murashkincba2c162013-03-20 15:56:31 -0700359 }
360
Igor Murashkincba2c162013-03-20 15:56:31 -0700361}
362
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800363void CameraService::onTorchStatusChanged(const String8& cameraId,
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800364 int32_t newStatus) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800365 Mutex::Autolock al(mTorchStatusMutex);
366 onTorchStatusChangedLocked(cameraId, newStatus);
367}
368
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800369void CameraService::onTorchStatusChangedLocked(const String8& cameraId,
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800370 int32_t newStatus) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800371 ALOGI("%s: Torch status changed for cameraId=%s, newStatus=%d",
372 __FUNCTION__, cameraId.string(), newStatus);
373
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800374 int32_t status;
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800375 status_t res = getTorchStatusLocked(cameraId, &status);
376 if (res) {
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -0700377 ALOGE("%s: cannot get torch status of camera %s: %s (%d)",
378 __FUNCTION__, cameraId.string(), strerror(-res), res);
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800379 return;
380 }
381 if (status == newStatus) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800382 return;
383 }
384
Chien-Yu Chen88da5262015-02-17 13:56:46 -0800385 res = setTorchStatusLocked(cameraId, newStatus);
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800386 if (res) {
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -0800387 ALOGE("%s: Failed to set the torch status to %d: %s (%d)", __FUNCTION__,
388 (uint32_t)newStatus, strerror(-res), res);
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800389 return;
390 }
391
Ruben Brunkcc776712015-02-17 20:18:47 -0800392 {
Ruben Brunk99e69712015-05-26 17:25:07 -0700393 // Update battery life logging for flashlight
Chien-Yu Chenfe751be2015-09-01 14:16:44 -0700394 Mutex::Autolock al(mTorchUidMapMutex);
Ruben Brunk99e69712015-05-26 17:25:07 -0700395 auto iter = mTorchUidMap.find(cameraId);
396 if (iter != mTorchUidMap.end()) {
397 int oldUid = iter->second.second;
398 int newUid = iter->second.first;
399 BatteryNotifier& notifier(BatteryNotifier::getInstance());
400 if (oldUid != newUid) {
401 // If the UID has changed, log the status and update current UID in mTorchUidMap
402 if (status == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
403 notifier.noteFlashlightOff(cameraId, oldUid);
404 }
405 if (newStatus == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
406 notifier.noteFlashlightOn(cameraId, newUid);
407 }
408 iter->second.second = newUid;
409 } else {
410 // If the UID has not changed, log the status
411 if (newStatus == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
412 notifier.noteFlashlightOn(cameraId, oldUid);
413 } else {
414 notifier.noteFlashlightOff(cameraId, oldUid);
415 }
416 }
417 }
418 }
419
420 {
Ruben Brunkcc776712015-02-17 20:18:47 -0800421 Mutex::Autolock lock(mStatusListenerLock);
422 for (auto& i : mListenerList) {
423 i->onTorchStatusChanged(newStatus, String16{cameraId});
424 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -0800425 }
426}
427
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800428Status CameraService::getNumberOfCameras(int32_t type, int32_t* numCameras) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700429 ATRACE_CALL();
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700430 switch (type) {
431 case CAMERA_TYPE_BACKWARD_COMPATIBLE:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800432 *numCameras = mNumberOfNormalCameras;
433 break;
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700434 case CAMERA_TYPE_ALL:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800435 *numCameras = mNumberOfCameras;
436 break;
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700437 default:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800438 ALOGW("%s: Unknown camera type %d",
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700439 __FUNCTION__, type);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800440 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
441 "Unknown camera type %d", type);
Eino-Ville Talvalabad43582015-08-14 13:12:32 -0700442 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800443 return Status::ok();
Mathias Agopian65ab4712010-07-14 17:59:35 -0700444}
445
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800446Status CameraService::getCameraInfo(int cameraId,
447 CameraInfo* cameraInfo) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700448 ATRACE_CALL();
Iliyan Malchev8951a972011-04-14 16:55:59 -0700449 if (!mModule) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800450 return STATUS_ERROR(ERROR_DISCONNECTED,
451 "Camera subsystem is not available");
Iliyan Malchev8951a972011-04-14 16:55:59 -0700452 }
453
Mathias Agopian65ab4712010-07-14 17:59:35 -0700454 if (cameraId < 0 || cameraId >= mNumberOfCameras) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800455 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
456 "CameraId is not valid");
Mathias Agopian65ab4712010-07-14 17:59:35 -0700457 }
458
Iliyan Malchev8951a972011-04-14 16:55:59 -0700459 struct camera_info info;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800460 Status rc = filterGetInfoErrorCode(
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800461 mModule->getCameraInfo(cameraId, &info));
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800462
463 if (rc.isOk()) {
464 cameraInfo->facing = info.facing;
465 cameraInfo->orientation = info.orientation;
Yin-Chia Yeh9b5a6e92016-04-22 13:24:05 -0700466 // CameraInfo is for android.hardware.Camera which does not
467 // support external camera facing. The closest approximation would be
468 // front camera.
469 if (cameraInfo->orientation == CAMERA_FACING_EXTERNAL) {
470 cameraInfo->orientation = CAMERA_FACING_FRONT;
471 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800472 }
Iliyan Malchev8951a972011-04-14 16:55:59 -0700473 return rc;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700474}
475
Ruben Brunkcc776712015-02-17 20:18:47 -0800476int CameraService::cameraIdToInt(const String8& cameraId) {
477 errno = 0;
478 size_t pos = 0;
479 int ret = stoi(std::string{cameraId.string()}, &pos);
480 if (errno != 0 || pos != cameraId.size()) {
481 return -1;
482 }
483 return ret;
484}
Ruben Brunkb2119af2014-05-09 19:57:56 -0700485
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800486Status CameraService::generateShimMetadata(int cameraId, /*out*/CameraMetadata* cameraInfo) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700487 ATRACE_CALL();
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800488
489 Status ret = Status::ok();
490
Ruben Brunkb2119af2014-05-09 19:57:56 -0700491 struct CameraInfo info;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800492 if (!(ret = getCameraInfo(cameraId, &info)).isOk()) {
Ruben Brunkb2119af2014-05-09 19:57:56 -0700493 return ret;
494 }
495
496 CameraMetadata shimInfo;
497 int32_t orientation = static_cast<int32_t>(info.orientation);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800498 status_t rc;
499 if ((rc = shimInfo.update(ANDROID_SENSOR_ORIENTATION, &orientation, 1)) != OK) {
500 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
501 "Error updating metadata: %d (%s)", rc, strerror(-rc));
Ruben Brunkb2119af2014-05-09 19:57:56 -0700502 }
503
504 uint8_t facing = (info.facing == CAMERA_FACING_FRONT) ?
505 ANDROID_LENS_FACING_FRONT : ANDROID_LENS_FACING_BACK;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800506 if ((rc = shimInfo.update(ANDROID_LENS_FACING, &facing, 1)) != OK) {
507 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
508 "Error updating metadata: %d (%s)", rc, strerror(-rc));
Ruben Brunkb2119af2014-05-09 19:57:56 -0700509 }
510
Igor Murashkin65d14b92014-06-17 12:03:20 -0700511 CameraParameters shimParams;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800512 if (!(ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)).isOk()) {
Igor Murashkin65d14b92014-06-17 12:03:20 -0700513 // Error logged by callee
514 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700515 }
516
517 Vector<Size> sizes;
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700518 Vector<Size> jpegSizes;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700519 Vector<int32_t> formats;
Igor Murashkin65d14b92014-06-17 12:03:20 -0700520 {
521 shimParams.getSupportedPreviewSizes(/*out*/sizes);
522 shimParams.getSupportedPreviewFormats(/*out*/formats);
523 shimParams.getSupportedPictureSizes(/*out*/jpegSizes);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700524 }
525
526 // Always include IMPLEMENTATION_DEFINED
527 formats.add(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED);
528
529 const size_t INTS_PER_CONFIG = 4;
530
531 // Build available stream configurations metadata
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700532 size_t streamConfigSize = (sizes.size() * formats.size() + jpegSizes.size()) * INTS_PER_CONFIG;
533
534 Vector<int32_t> streamConfigs;
535 streamConfigs.setCapacity(streamConfigSize);
536
Ruben Brunkb2119af2014-05-09 19:57:56 -0700537 for (size_t i = 0; i < formats.size(); ++i) {
538 for (size_t j = 0; j < sizes.size(); ++j) {
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700539 streamConfigs.add(formats[i]);
540 streamConfigs.add(sizes[j].width);
541 streamConfigs.add(sizes[j].height);
542 streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700543 }
544 }
545
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700546 for (size_t i = 0; i < jpegSizes.size(); ++i) {
547 streamConfigs.add(HAL_PIXEL_FORMAT_BLOB);
548 streamConfigs.add(jpegSizes[i].width);
549 streamConfigs.add(jpegSizes[i].height);
550 streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
551 }
552
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800553 if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700554 streamConfigs.array(), streamConfigSize)) != OK) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800555 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
556 "Error updating metadata: %d (%s)", rc, strerror(-rc));
Ruben Brunkb2119af2014-05-09 19:57:56 -0700557 }
558
559 int64_t fakeMinFrames[0];
560 // TODO: Fixme, don't fake min frame durations.
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800561 if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS,
Ruben Brunkb2119af2014-05-09 19:57:56 -0700562 fakeMinFrames, 0)) != OK) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800563 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
564 "Error updating metadata: %d (%s)", rc, strerror(-rc));
Ruben Brunkb2119af2014-05-09 19:57:56 -0700565 }
566
567 int64_t fakeStalls[0];
568 // TODO: Fixme, don't fake stall durations.
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800569 if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_STALL_DURATIONS,
Ruben Brunkb2119af2014-05-09 19:57:56 -0700570 fakeStalls, 0)) != OK) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800571 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
572 "Error updating metadata: %d (%s)", rc, strerror(-rc));
Ruben Brunkb2119af2014-05-09 19:57:56 -0700573 }
574
575 *cameraInfo = shimInfo;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800576 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700577}
578
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800579Status CameraService::getCameraCharacteristics(int cameraId,
Zhijun He2b59be82013-09-25 10:14:30 -0700580 CameraMetadata* cameraInfo) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700581 ATRACE_CALL();
Zhijun He2b59be82013-09-25 10:14:30 -0700582 if (!cameraInfo) {
583 ALOGE("%s: cameraInfo is NULL", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800584 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "cameraInfo is NULL");
Zhijun He2b59be82013-09-25 10:14:30 -0700585 }
586
587 if (!mModule) {
588 ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800589 return STATUS_ERROR(ERROR_DISCONNECTED,
590 "Camera subsystem is not available");;
Zhijun He2b59be82013-09-25 10:14:30 -0700591 }
592
Zhijun He2b59be82013-09-25 10:14:30 -0700593 if (cameraId < 0 || cameraId >= mNumberOfCameras) {
594 ALOGE("%s: Invalid camera id: %d", __FUNCTION__, cameraId);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800595 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
596 "Invalid camera id: %d", cameraId);
Zhijun He2b59be82013-09-25 10:14:30 -0700597 }
598
599 int facing;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800600 Status ret;
Chien-Yu Chen676b21b2015-02-24 10:28:19 -0800601 if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_0 ||
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -0800602 getDeviceVersion(cameraId, &facing) < CAMERA_DEVICE_API_VERSION_3_0) {
Ruben Brunkb2119af2014-05-09 19:57:56 -0700603 /**
604 * Backwards compatibility mode for old HALs:
605 * - Convert CameraInfo into static CameraMetadata properties.
606 * - Retrieve cached CameraParameters for this camera. If none exist,
607 * attempt to open CameraClient and retrieve the CameraParameters.
608 * - Convert cached CameraParameters into static CameraMetadata
609 * properties.
610 */
611 ALOGI("%s: Switching to HAL1 shim implementation...", __FUNCTION__);
Zhijun He2b59be82013-09-25 10:14:30 -0700612
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800613 ret = generateShimMetadata(cameraId, cameraInfo);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700614 } else {
615 /**
616 * Normal HAL 2.1+ codepath.
617 */
618 struct camera_info info;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800619 ret = filterGetInfoErrorCode(mModule->getCameraInfo(cameraId, &info));
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800620 if (ret.isOk()) {
621 *cameraInfo = info.static_camera_characteristics;
622 }
Ruben Brunkb2119af2014-05-09 19:57:56 -0700623 }
Zhijun He2b59be82013-09-25 10:14:30 -0700624
625 return ret;
626}
627
Ruben Brunkcc776712015-02-17 20:18:47 -0800628int CameraService::getCallingPid() {
629 return IPCThreadState::self()->getCallingPid();
630}
631
632int CameraService::getCallingUid() {
633 return IPCThreadState::self()->getCallingUid();
634}
635
636String8 CameraService::getFormattedCurrentTime() {
637 time_t now = time(nullptr);
638 char formattedTime[64];
639 strftime(formattedTime, sizeof(formattedTime), "%m-%d %H:%M:%S", localtime(&now));
640 return String8(formattedTime);
641}
642
643int CameraService::getCameraPriorityFromProcState(int procState) {
644 // Find the priority for the camera usage based on the process state. Higher priority clients
645 // win for evictions.
Ruben Brunkbe0b6b42015-05-12 16:10:52 -0700646 if (procState < 0) {
647 ALOGE("%s: Received invalid process state %d from ActivityManagerService!", __FUNCTION__,
648 procState);
649 return -1;
Ruben Brunkcc776712015-02-17 20:18:47 -0800650 }
Eino-Ville Talvala52aad852015-09-03 12:24:24 -0700651 // Treat sleeping TOP processes the same as regular TOP processes, for
652 // access priority. This is important for lock-screen camera launch scenarios
653 if (procState == PROCESS_STATE_TOP_SLEEPING) {
654 procState = PROCESS_STATE_TOP;
655 }
Ruben Brunkbe0b6b42015-05-12 16:10:52 -0700656 return INT_MAX - procState;
Ruben Brunkcc776712015-02-17 20:18:47 -0800657}
658
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800659Status CameraService::getCameraVendorTagDescriptor(
660 /*out*/
661 hardware::camera2::params::VendorTagDescriptor* desc) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700662 ATRACE_CALL();
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800663 if (!mModule) {
664 ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800665 return STATUS_ERROR(ERROR_DISCONNECTED, "Camera subsystem not available");
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800666 }
Eino-Ville Talvala1e74e242016-03-03 11:24:28 -0800667 sp<VendorTagDescriptor> globalDescriptor = VendorTagDescriptor::getGlobalVendorTagDescriptor();
668 if (globalDescriptor != nullptr) {
669 *desc = *(globalDescriptor.get());
670 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800671 return Status::ok();
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800672}
673
Igor Murashkin634a5152013-02-20 17:15:11 -0800674int CameraService::getDeviceVersion(int cameraId, int* facing) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700675 ATRACE_CALL();
Igor Murashkin634a5152013-02-20 17:15:11 -0800676 struct camera_info info;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800677 if (mModule->getCameraInfo(cameraId, &info) != OK) {
Igor Murashkin634a5152013-02-20 17:15:11 -0800678 return -1;
679 }
680
681 int deviceVersion;
Chien-Yu Chen676b21b2015-02-24 10:28:19 -0800682 if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
Igor Murashkin634a5152013-02-20 17:15:11 -0800683 deviceVersion = info.device_version;
684 } else {
685 deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
686 }
687
688 if (facing) {
689 *facing = info.facing;
690 }
691
692 return deviceVersion;
693}
694
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800695Status CameraService::filterGetInfoErrorCode(status_t err) {
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700696 switch(err) {
697 case NO_ERROR:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800698 return Status::ok();
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700699 case -EINVAL:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800700 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
701 "CameraId is not valid for HAL module");
702 case -ENODEV:
703 return STATUS_ERROR(ERROR_DISCONNECTED,
704 "Camera device not available");
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700705 default:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800706 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
707 "Camera HAL encountered error %d: %s",
708 err, strerror(-err));
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700709 }
Igor Murashkinbfc99152013-02-27 12:55:20 -0800710}
711
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800712bool CameraService::setUpVendorTags() {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -0700713 ATRACE_CALL();
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800714 vendor_tag_ops_t vOps = vendor_tag_ops_t();
715
716 // Check if vendor operations have been implemented
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800717 if (!mModule->isVendorTagDefined()) {
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800718 ALOGI("%s: No vendor tags defined for this device.", __FUNCTION__);
719 return false;
720 }
721
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800722 mModule->getVendorTagOps(&vOps);
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800723
724 // Ensure all vendor operations are present
725 if (vOps.get_tag_count == NULL || vOps.get_all_tags == NULL ||
726 vOps.get_section_name == NULL || vOps.get_tag_name == NULL ||
727 vOps.get_tag_type == NULL) {
728 ALOGE("%s: Vendor tag operations not fully defined. Ignoring definitions."
729 , __FUNCTION__);
730 return false;
731 }
732
733 // Read all vendor tag definitions into a descriptor
734 sp<VendorTagDescriptor> desc;
735 status_t res;
736 if ((res = VendorTagDescriptor::createDescriptorFromOps(&vOps, /*out*/desc))
737 != OK) {
738 ALOGE("%s: Could not generate descriptor from vendor tag operations,"
739 "received error %s (%d). Camera clients will not be able to use"
740 "vendor tags", __FUNCTION__, strerror(res), res);
741 return false;
742 }
743
744 // Set the global descriptor to use with camera metadata
745 VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
746 return true;
747}
748
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800749Status CameraService::makeClient(const sp<CameraService>& cameraService,
750 const sp<IInterface>& cameraCb, const String16& packageName, int cameraId,
Ruben Brunkcc776712015-02-17 20:18:47 -0800751 int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
752 int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
753 /*out*/sp<BasicClient>* client) {
754
Ruben Brunkcc776712015-02-17 20:18:47 -0800755 if (halVersion < 0 || halVersion == deviceVersion) {
756 // Default path: HAL version is unspecified by caller, create CameraClient
757 // based on device version reported by the HAL.
758 switch(deviceVersion) {
759 case CAMERA_DEVICE_API_VERSION_1_0:
760 if (effectiveApiLevel == API_1) { // Camera1 API route
761 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800762 *client = new CameraClient(cameraService, tmp, packageName, cameraId, facing,
Ruben Brunkcc776712015-02-17 20:18:47 -0800763 clientPid, clientUid, getpid(), legacyMode);
764 } else { // Camera2 API route
765 ALOGW("Camera using old HAL version: %d", deviceVersion);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800766 return STATUS_ERROR_FMT(ERROR_DEPRECATED_HAL,
767 "Camera device \"%d\" HAL version %d does not support camera2 API",
768 cameraId, deviceVersion);
Ruben Brunkcc776712015-02-17 20:18:47 -0800769 }
770 break;
Ruben Brunkcc776712015-02-17 20:18:47 -0800771 case CAMERA_DEVICE_API_VERSION_3_0:
772 case CAMERA_DEVICE_API_VERSION_3_1:
773 case CAMERA_DEVICE_API_VERSION_3_2:
774 case CAMERA_DEVICE_API_VERSION_3_3:
775 if (effectiveApiLevel == API_1) { // Camera1 API route
776 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800777 *client = new Camera2Client(cameraService, tmp, packageName, cameraId, facing,
Ruben Brunkcc776712015-02-17 20:18:47 -0800778 clientPid, clientUid, servicePid, legacyMode);
779 } else { // Camera2 API route
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800780 sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
781 static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
782 *client = new CameraDeviceClient(cameraService, tmp, packageName, cameraId,
Ruben Brunkcc776712015-02-17 20:18:47 -0800783 facing, clientPid, clientUid, servicePid);
784 }
785 break;
786 default:
787 // Should not be reachable
788 ALOGE("Unknown camera device HAL version: %d", deviceVersion);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800789 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
790 "Camera device \"%d\" has unknown HAL version %d",
791 cameraId, deviceVersion);
Ruben Brunkcc776712015-02-17 20:18:47 -0800792 }
793 } else {
794 // A particular HAL version is requested by caller. Create CameraClient
795 // based on the requested HAL version.
796 if (deviceVersion > CAMERA_DEVICE_API_VERSION_1_0 &&
797 halVersion == CAMERA_DEVICE_API_VERSION_1_0) {
798 // Only support higher HAL version device opened as HAL1.0 device.
799 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800800 *client = new CameraClient(cameraService, tmp, packageName, cameraId, facing,
Ruben Brunkcc776712015-02-17 20:18:47 -0800801 clientPid, clientUid, servicePid, legacyMode);
802 } else {
803 // Other combinations (e.g. HAL3.x open as HAL2.x) are not supported yet.
804 ALOGE("Invalid camera HAL version %x: HAL %x device can only be"
805 " opened as HAL %x device", halVersion, deviceVersion,
806 CAMERA_DEVICE_API_VERSION_1_0);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800807 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
808 "Camera device \"%d\" (HAL version %d) cannot be opened as HAL version %d",
809 cameraId, deviceVersion, halVersion);
Ruben Brunkcc776712015-02-17 20:18:47 -0800810 }
811 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800812 return Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -0800813}
814
Ruben Brunk6267b532015-04-30 17:44:07 -0700815String8 CameraService::toString(std::set<userid_t> intSet) {
816 String8 s("");
817 bool first = true;
818 for (userid_t i : intSet) {
819 if (first) {
820 s.appendFormat("%d", i);
821 first = false;
822 } else {
823 s.appendFormat(", %d", i);
824 }
825 }
826 return s;
827}
828
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800829Status CameraService::initializeShimMetadata(int cameraId) {
Ruben Brunkcc776712015-02-17 20:18:47 -0800830 int uid = getCallingUid();
Ruben Brunkb2119af2014-05-09 19:57:56 -0700831
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800832 String16 internalPackageName("cameraserver");
Ruben Brunkcc776712015-02-17 20:18:47 -0800833 String8 id = String8::format("%d", cameraId);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800834 Status ret = Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -0800835 sp<Client> tmp = nullptr;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800836 if (!(ret = connectHelper<ICameraClient,Client>(
837 sp<ICameraClient>{nullptr}, id, static_cast<int>(CAMERA_HAL_API_VERSION_UNSPECIFIED),
838 internalPackageName, uid, USE_CALLING_PID,
839 API_1, /*legacyMode*/ false, /*shimUpdateOnly*/ true,
840 /*out*/ tmp)
841 ).isOk()) {
842 ALOGE("%s: Error initializing shim metadata: %s", __FUNCTION__, ret.toString8().string());
Ruben Brunkb2119af2014-05-09 19:57:56 -0700843 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800844 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700845}
846
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800847Status CameraService::getLegacyParametersLazy(int cameraId,
Igor Murashkin65d14b92014-06-17 12:03:20 -0700848 /*out*/
849 CameraParameters* parameters) {
850
851 ALOGV("%s: for cameraId: %d", __FUNCTION__, cameraId);
852
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800853 Status ret = Status::ok();
Igor Murashkin65d14b92014-06-17 12:03:20 -0700854
855 if (parameters == NULL) {
856 ALOGE("%s: parameters must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800857 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Parameters must not be null");
Igor Murashkin65d14b92014-06-17 12:03:20 -0700858 }
859
Ruben Brunkcc776712015-02-17 20:18:47 -0800860 String8 id = String8::format("%d", cameraId);
861
862 // Check if we already have parameters
863 {
864 // Scope for service lock
Igor Murashkin65d14b92014-06-17 12:03:20 -0700865 Mutex::Autolock lock(mServiceLock);
Ruben Brunkcc776712015-02-17 20:18:47 -0800866 auto cameraState = getCameraState(id);
867 if (cameraState == nullptr) {
868 ALOGE("%s: Invalid camera ID: %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800869 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
870 "Invalid camera ID: %s", id.string());
Ruben Brunkcc776712015-02-17 20:18:47 -0800871 }
872 CameraParameters p = cameraState->getShimParams();
873 if (!p.isEmpty()) {
874 *parameters = p;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800875 return ret;
Igor Murashkin65d14b92014-06-17 12:03:20 -0700876 }
877 }
878
Ruben Brunkcc776712015-02-17 20:18:47 -0800879 int64_t token = IPCThreadState::self()->clearCallingIdentity();
880 ret = initializeShimMetadata(cameraId);
881 IPCThreadState::self()->restoreCallingIdentity(token);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800882 if (!ret.isOk()) {
Ruben Brunkcc776712015-02-17 20:18:47 -0800883 // Error already logged by callee
884 return ret;
885 }
886
887 // Check for parameters again
888 {
889 // Scope for service lock
890 Mutex::Autolock lock(mServiceLock);
891 auto cameraState = getCameraState(id);
892 if (cameraState == nullptr) {
893 ALOGE("%s: Invalid camera ID: %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800894 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
895 "Invalid camera ID: %s", id.string());
Igor Murashkin65d14b92014-06-17 12:03:20 -0700896 }
Ruben Brunkcc776712015-02-17 20:18:47 -0800897 CameraParameters p = cameraState->getShimParams();
898 if (!p.isEmpty()) {
899 *parameters = p;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800900 return ret;
Igor Murashkin65d14b92014-06-17 12:03:20 -0700901 }
902 }
903
Ruben Brunkcc776712015-02-17 20:18:47 -0800904 ALOGE("%s: Parameters were not initialized, or were empty. Device may not be present.",
905 __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800906 return STATUS_ERROR(ERROR_INVALID_OPERATION, "Unable to initialize legacy parameters");
Igor Murashkin65d14b92014-06-17 12:03:20 -0700907}
908
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800909// Can camera service trust the caller based on the calling UID?
910static bool isTrustedCallingUid(uid_t uid) {
911 switch (uid) {
912 case AID_MEDIA: // mediaserver
913 case AID_CAMERASERVER: // cameraserver
914 return true;
915 default:
916 return false;
917 }
918}
919
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800920Status CameraService::validateConnectLocked(const String8& cameraId,
Chien-Yu Chen18df60e2016-03-18 18:18:09 -0700921 const String8& clientName8, /*inout*/int& clientUid, /*inout*/int& clientPid,
922 /*out*/int& originalClientPid) const {
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800923
Mathias Agopian65ab4712010-07-14 17:59:35 -0700924 int callingPid = getCallingPid();
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800925 int callingUid = getCallingUid();
Tyler Luu5861a9a2011-10-06 00:00:03 -0500926
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800927 // Check if we can trust clientUid
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800928 if (clientUid == USE_CALLING_UID) {
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800929 clientUid = callingUid;
930 } else if (!isTrustedCallingUid(callingUid)) {
931 ALOGE("CameraService::connect X (calling PID %d, calling UID %d) rejected "
932 "(don't trust clientUid %d)", callingPid, callingUid, clientUid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800933 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
934 "Untrusted caller (calling PID %d, UID %d) trying to "
935 "forward camera access to camera %s for client %s (PID %d, UID %d)",
936 callingPid, callingUid, cameraId.string(),
937 clientName8.string(), clientUid, clientPid);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800938 }
Mathias Agopian65ab4712010-07-14 17:59:35 -0700939
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800940 // Check if we can trust clientPid
941 if (clientPid == USE_CALLING_PID) {
942 clientPid = callingPid;
943 } else if (!isTrustedCallingUid(callingUid)) {
944 ALOGE("CameraService::connect X (calling PID %d, calling UID %d) rejected "
945 "(don't trust clientPid %d)", callingPid, callingUid, clientPid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800946 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
947 "Untrusted caller (calling PID %d, UID %d) trying to "
948 "forward camera access to camera %s for client %s (PID %d, UID %d)",
949 callingPid, callingUid, cameraId.string(),
950 clientName8.string(), clientUid, clientPid);
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800951 }
952
953 // If it's not calling from cameraserver, check the permission.
954 if (callingPid != getpid() &&
955 !checkPermission(String16("android.permission.CAMERA"), clientPid, clientUid)) {
956 ALOGE("Permission Denial: can't use the camera pid=%d, uid=%d", clientPid, clientUid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800957 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
958 "Caller \"%s\" (PID %d, UID %d) cannot open camera \"%s\" without camera permission",
959 clientName8.string(), clientUid, clientPid, cameraId.string());
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800960 }
961
962 // Only use passed in clientPid to check permission. Use calling PID as the client PID that's
963 // connected to camera service directly.
Chien-Yu Chen18df60e2016-03-18 18:18:09 -0700964 originalClientPid = clientPid;
Chien-Yu Chen98a668f2015-12-18 14:10:33 -0800965 clientPid = callingPid;
966
Iliyan Malchev8951a972011-04-14 16:55:59 -0700967 if (!mModule) {
Ruben Brunkcc776712015-02-17 20:18:47 -0800968 ALOGE("CameraService::connect X (PID %d) rejected (camera HAL module not loaded)",
969 callingPid);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800970 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
971 "No camera HAL module available to open camera device \"%s\"", cameraId.string());
Iliyan Malchev8951a972011-04-14 16:55:59 -0700972 }
973
Ruben Brunkcc776712015-02-17 20:18:47 -0800974 if (getCameraState(cameraId) == nullptr) {
975 ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
976 cameraId.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800977 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
978 "No camera device with ID \"%s\" available", cameraId.string());
Mathias Agopian65ab4712010-07-14 17:59:35 -0700979 }
980
Ruben Brunk6267b532015-04-30 17:44:07 -0700981 userid_t clientUserId = multiuser_get_user_id(clientUid);
Wu-cheng Lia3355432011-05-20 14:54:25 +0800982
Ruben Brunka8ca9152015-04-07 14:23:40 -0700983 // Only allow clients who are being used by the current foreground device user, unless calling
984 // from our own process.
Ruben Brunk6267b532015-04-30 17:44:07 -0700985 if (callingPid != getpid() && (mAllowedUsers.find(clientUserId) == mAllowedUsers.end())) {
986 ALOGE("CameraService::connect X (PID %d) rejected (cannot connect from "
987 "device user %d, currently allowed device users: %s)", callingPid, clientUserId,
988 toString(mAllowedUsers).string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800989 return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
990 "Callers from device user %d are not currently allowed to connect to camera \"%s\"",
991 clientUserId, cameraId.string());
Ruben Brunk36597b22015-03-20 22:15:57 -0700992 }
993
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -0800994 status_t err = checkIfDeviceIsUsable(cameraId);
995 if (err != NO_ERROR) {
996 switch(err) {
997 case -ENODEV:
998 case -EBUSY:
999 return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
1000 "No camera device with ID \"%s\" currently available", cameraId.string());
1001 default:
1002 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
1003 "Unknown error connecting to ID \"%s\"", cameraId.string());
1004 }
1005 }
1006 return Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001007}
1008
1009status_t CameraService::checkIfDeviceIsUsable(const String8& cameraId) const {
1010 auto cameraState = getCameraState(cameraId);
1011 int callingPid = getCallingPid();
1012 if (cameraState == nullptr) {
1013 ALOGE("CameraService::connect X (PID %d) rejected (invalid camera ID %s)", callingPid,
1014 cameraId.string());
1015 return -ENODEV;
1016 }
1017
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001018 int32_t currentStatus = cameraState->getStatus();
Igor Murashkincba2c162013-03-20 15:56:31 -07001019 if (currentStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001020 ALOGE("CameraService::connect X (PID %d) rejected (camera %s is not connected)",
1021 callingPid, cameraId.string());
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001022 return -ENODEV;
Igor Murashkincba2c162013-03-20 15:56:31 -07001023 } else if (currentStatus == ICameraServiceListener::STATUS_ENUMERATING) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001024 ALOGE("CameraService::connect X (PID %d) rejected, (camera %s is initializing)",
1025 callingPid, cameraId.string());
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001026 return -EBUSY;
Igor Murashkincba2c162013-03-20 15:56:31 -07001027 }
Igor Murashkincba2c162013-03-20 15:56:31 -07001028
Ruben Brunkcc776712015-02-17 20:18:47 -08001029 return NO_ERROR;
Igor Murashkine6800ce2013-03-04 17:25:57 -08001030}
1031
Ruben Brunkcc776712015-02-17 20:18:47 -08001032void CameraService::finishConnectLocked(const sp<BasicClient>& client,
1033 const CameraService::DescriptorPtr& desc) {
Igor Murashkine6800ce2013-03-04 17:25:57 -08001034
Ruben Brunkcc776712015-02-17 20:18:47 -08001035 // Make a descriptor for the incoming client
1036 auto clientDescriptor = CameraService::CameraClientManager::makeClientDescriptor(client, desc);
1037 auto evicted = mActiveClientManager.addAndEvict(clientDescriptor);
1038
1039 logConnected(desc->getKey(), static_cast<int>(desc->getOwnerId()),
1040 String8(client->getPackageName()));
1041
1042 if (evicted.size() > 0) {
1043 // This should never happen - clients should already have been removed in disconnect
1044 for (auto& i : evicted) {
1045 ALOGE("%s: Invalid state: Client for camera %s was not removed in disconnect",
1046 __FUNCTION__, i->getKey().string());
1047 }
1048
1049 LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, clients not evicted properly",
1050 __FUNCTION__);
1051 }
Eino-Ville Talvala24901c82015-09-04 14:15:58 -07001052
1053 // And register a death notification for the client callback. Do
1054 // this last to avoid Binder policy where a nested Binder
1055 // transaction might be pre-empted to service the client death
1056 // notification if the client process dies before linkToDeath is
1057 // invoked.
1058 sp<IBinder> remoteCallback = client->getRemote();
1059 if (remoteCallback != nullptr) {
1060 remoteCallback->linkToDeath(this);
1061 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001062}
1063
1064status_t CameraService::handleEvictionsLocked(const String8& cameraId, int clientPid,
1065 apiLevel effectiveApiLevel, const sp<IBinder>& remoteCallback, const String8& packageName,
1066 /*out*/
1067 sp<BasicClient>* client,
1068 std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>* partial) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001069 ATRACE_CALL();
Ruben Brunkcc776712015-02-17 20:18:47 -08001070 status_t ret = NO_ERROR;
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001071 std::vector<DescriptorPtr> evictedClients;
Ruben Brunkcc776712015-02-17 20:18:47 -08001072 DescriptorPtr clientDescriptor;
1073 {
1074 if (effectiveApiLevel == API_1) {
1075 // If we are using API1, any existing client for this camera ID with the same remote
1076 // should be returned rather than evicted to allow MediaRecorder to work properly.
1077
1078 auto current = mActiveClientManager.get(cameraId);
1079 if (current != nullptr) {
1080 auto clientSp = current->getValue();
1081 if (clientSp.get() != nullptr) { // should never be needed
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07001082 if (!clientSp->canCastToApiClient(effectiveApiLevel)) {
1083 ALOGW("CameraService connect called from same client, but with a different"
1084 " API level, evicting prior client...");
1085 } else if (clientSp->getRemote() == remoteCallback) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001086 ALOGI("CameraService::connect X (PID %d) (second call from same"
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07001087 " app binder, returning the same client)", clientPid);
Ruben Brunkcc776712015-02-17 20:18:47 -08001088 *client = clientSp;
1089 return NO_ERROR;
1090 }
1091 }
Wu-cheng Li2fd24402012-02-23 19:01:00 -08001092 }
Wu-cheng Li2fd24402012-02-23 19:01:00 -08001093 }
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +08001094
Ruben Brunkcc776712015-02-17 20:18:47 -08001095 // Get current active client PIDs
1096 std::vector<int> ownerPids(mActiveClientManager.getAllOwners());
1097 ownerPids.push_back(clientPid);
Igor Murashkine6800ce2013-03-04 17:25:57 -08001098
Chih-Hung Hsieh54b42462015-03-19 12:04:54 -07001099 // Use the value +PROCESS_STATE_NONEXISTENT, to avoid taking
1100 // address of PROCESS_STATE_NONEXISTENT as a reference argument
1101 // for the vector constructor. PROCESS_STATE_NONEXISTENT does
1102 // not have an out-of-class definition.
1103 std::vector<int> priorities(ownerPids.size(), +PROCESS_STATE_NONEXISTENT);
Igor Murashkine6800ce2013-03-04 17:25:57 -08001104
Ruben Brunkcc776712015-02-17 20:18:47 -08001105 // Get priorites of all active PIDs
1106 ProcessInfoService::getProcessStatesFromPids(ownerPids.size(), &ownerPids[0],
1107 /*out*/&priorities[0]);
Ruben Brunkb2119af2014-05-09 19:57:56 -07001108
Ruben Brunkcc776712015-02-17 20:18:47 -08001109 // Update all active clients' priorities
1110 std::map<int,int> pidToPriorityMap;
1111 for (size_t i = 0; i < ownerPids.size() - 1; i++) {
1112 pidToPriorityMap.emplace(ownerPids[i], getCameraPriorityFromProcState(priorities[i]));
1113 }
1114 mActiveClientManager.updatePriorities(pidToPriorityMap);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001115
Ruben Brunkcc776712015-02-17 20:18:47 -08001116 // Get state for the given cameraId
1117 auto state = getCameraState(cameraId);
1118 if (state == nullptr) {
1119 ALOGE("CameraService::connect X (PID %d) rejected (no camera device with ID %s)",
1120 clientPid, cameraId.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001121 // Should never get here because validateConnectLocked should have errored out
Zhijun Heb10cdad2014-06-16 16:38:35 -07001122 return BAD_VALUE;
Zhijun Heb10cdad2014-06-16 16:38:35 -07001123 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001124
1125 // Make descriptor for incoming client
1126 clientDescriptor = CameraClientManager::makeClientDescriptor(cameraId,
1127 sp<BasicClient>{nullptr}, static_cast<int32_t>(state->getCost()),
1128 state->getConflicting(),
1129 getCameraPriorityFromProcState(priorities[priorities.size() - 1]), clientPid);
1130
1131 // Find clients that would be evicted
1132 auto evicted = mActiveClientManager.wouldEvict(clientDescriptor);
1133
1134 // If the incoming client was 'evicted,' higher priority clients have the camera in the
1135 // background, so we cannot do evictions
1136 if (std::find(evicted.begin(), evicted.end(), clientDescriptor) != evicted.end()) {
1137 ALOGE("CameraService::connect X (PID %d) rejected (existing client(s) with higher"
1138 " priority).", clientPid);
1139
1140 sp<BasicClient> clientSp = clientDescriptor->getValue();
1141 String8 curTime = getFormattedCurrentTime();
1142 auto incompatibleClients =
1143 mActiveClientManager.getIncompatibleClients(clientDescriptor);
1144
1145 String8 msg = String8::format("%s : DENIED connect device %s client for package %s "
Ruben Brunka8ca9152015-04-07 14:23:40 -07001146 "(PID %d, priority %d) due to eviction policy", curTime.string(),
Ruben Brunkcc776712015-02-17 20:18:47 -08001147 cameraId.string(), packageName.string(), clientPid,
1148 getCameraPriorityFromProcState(priorities[priorities.size() - 1]));
1149
1150 for (auto& i : incompatibleClients) {
1151 msg.appendFormat("\n - Blocked by existing device %s client for package %s"
1152 "(PID %" PRId32 ", priority %" PRId32 ")", i->getKey().string(),
1153 String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
1154 i->getPriority());
Eino-Ville Talvala022f0cb2015-05-19 16:31:16 -07001155 ALOGE(" Conflicts with: Device %s, client package %s (PID %"
1156 PRId32 ", priority %" PRId32 ")", i->getKey().string(),
1157 String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
1158 i->getPriority());
Ruben Brunkcc776712015-02-17 20:18:47 -08001159 }
1160
1161 // Log the client's attempt
Ruben Brunka8ca9152015-04-07 14:23:40 -07001162 Mutex::Autolock l(mLogLock);
Ruben Brunkcc776712015-02-17 20:18:47 -08001163 mEventLog.add(msg);
1164
1165 return -EBUSY;
1166 }
1167
1168 for (auto& i : evicted) {
1169 sp<BasicClient> clientSp = i->getValue();
1170 if (clientSp.get() == nullptr) {
1171 ALOGE("%s: Invalid state: Null client in active client list.", __FUNCTION__);
1172
1173 // TODO: Remove this
1174 LOG_ALWAYS_FATAL("%s: Invalid state for CameraService, null client in active list",
1175 __FUNCTION__);
1176 mActiveClientManager.remove(i);
1177 continue;
1178 }
1179
1180 ALOGE("CameraService::connect evicting conflicting client for camera ID %s",
1181 i->getKey().string());
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001182 evictedClients.push_back(i);
Ruben Brunkcc776712015-02-17 20:18:47 -08001183
Ruben Brunkcc776712015-02-17 20:18:47 -08001184 // Log the clients evicted
Ruben Brunka8ca9152015-04-07 14:23:40 -07001185 logEvent(String8::format("EVICT device %s client held by package %s (PID"
1186 " %" PRId32 ", priority %" PRId32 ")\n - Evicted by device %s client for"
1187 " package %s (PID %d, priority %" PRId32 ")",
Ruben Brunkcc776712015-02-17 20:18:47 -08001188 i->getKey().string(), String8{clientSp->getPackageName()}.string(),
1189 i->getOwnerId(), i->getPriority(), cameraId.string(),
1190 packageName.string(), clientPid,
1191 getCameraPriorityFromProcState(priorities[priorities.size() - 1])));
1192
1193 // Notify the client of disconnection
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001194 clientSp->notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
Ruben Brunkcc776712015-02-17 20:18:47 -08001195 CaptureResultExtras());
Zhijun Heb10cdad2014-06-16 16:38:35 -07001196 }
Ruben Brunkb2119af2014-05-09 19:57:56 -07001197 }
1198
Ruben Brunkcc776712015-02-17 20:18:47 -08001199 // Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
1200 // other clients from connecting in mServiceLockWrapper if held
1201 mServiceLock.unlock();
1202
1203 // Clear caller identity temporarily so client disconnect PID checks work correctly
1204 int64_t token = IPCThreadState::self()->clearCallingIdentity();
1205
1206 // Destroy evicted clients
1207 for (auto& i : evictedClients) {
1208 // Disconnect is blocking, and should only have returned when HAL has cleaned up
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001209 i->getValue()->disconnect(); // Clients will remove themselves from the active client list
Ruben Brunkcc776712015-02-17 20:18:47 -08001210 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001211
1212 IPCThreadState::self()->restoreCallingIdentity(token);
1213
Ruben Brunk4f9576b2015-04-10 17:26:56 -07001214 for (const auto& i : evictedClients) {
1215 ALOGV("%s: Waiting for disconnect to complete for client for device %s (PID %" PRId32 ")",
1216 __FUNCTION__, i->getKey().string(), i->getOwnerId());
1217 ret = mActiveClientManager.waitUntilRemoved(i, DEFAULT_DISCONNECT_TIMEOUT_NS);
1218 if (ret == TIMED_OUT) {
1219 ALOGE("%s: Timed out waiting for client for device %s to disconnect, "
1220 "current clients:\n%s", __FUNCTION__, i->getKey().string(),
1221 mActiveClientManager.toString().string());
1222 return -EBUSY;
1223 }
1224 if (ret != NO_ERROR) {
1225 ALOGE("%s: Received error waiting for client for device %s to disconnect: %s (%d), "
1226 "current clients:\n%s", __FUNCTION__, i->getKey().string(), strerror(-ret),
1227 ret, mActiveClientManager.toString().string());
1228 return ret;
1229 }
1230 }
1231
1232 evictedClients.clear();
1233
Ruben Brunkcc776712015-02-17 20:18:47 -08001234 // Once clients have been disconnected, relock
1235 mServiceLock.lock();
1236
1237 // Check again if the device was unplugged or something while we weren't holding mServiceLock
1238 if ((ret = checkIfDeviceIsUsable(cameraId)) != NO_ERROR) {
1239 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -07001240 }
1241
Ruben Brunkcc776712015-02-17 20:18:47 -08001242 *partial = clientDescriptor;
1243 return NO_ERROR;
Ruben Brunkb2119af2014-05-09 19:57:56 -07001244}
1245
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001246Status CameraService::connect(
Igor Murashkine6800ce2013-03-04 17:25:57 -08001247 const sp<ICameraClient>& cameraClient,
1248 int cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001249 const String16& clientPackageName,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001250 int clientUid,
Chien-Yu Chen98a668f2015-12-18 14:10:33 -08001251 int clientPid,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001252 /*out*/
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001253 sp<ICamera>* device) {
Igor Murashkine6800ce2013-03-04 17:25:57 -08001254
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001255 ATRACE_CALL();
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001256 Status ret = Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001257 String8 id = String8::format("%d", cameraId);
1258 sp<Client> client = nullptr;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001259 ret = connectHelper<ICameraClient,Client>(cameraClient, id,
1260 CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName, clientUid, clientPid, API_1,
1261 /*legacyMode*/ false, /*shimUpdateOnly*/ false,
1262 /*out*/client);
Igor Murashkine6800ce2013-03-04 17:25:57 -08001263
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001264 if(!ret.isOk()) {
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001265 logRejected(id, getCallingPid(), String8(clientPackageName),
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001266 ret.toString8());
Ruben Brunkcc776712015-02-17 20:18:47 -08001267 return ret;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001268 }
1269
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001270 *device = client;
1271 return ret;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001272}
1273
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001274Status CameraService::connectLegacy(
Zhijun Heb10cdad2014-06-16 16:38:35 -07001275 const sp<ICameraClient>& cameraClient,
1276 int cameraId, int halVersion,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001277 const String16& clientPackageName,
Zhijun Heb10cdad2014-06-16 16:38:35 -07001278 int clientUid,
1279 /*out*/
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001280 sp<ICamera>* device) {
Zhijun Heb10cdad2014-06-16 16:38:35 -07001281
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001282 ATRACE_CALL();
Ruben Brunka8ca9152015-04-07 14:23:40 -07001283 String8 id = String8::format("%d", cameraId);
Chien-Yu Chen676b21b2015-02-24 10:28:19 -08001284 int apiVersion = mModule->getModuleApiVersion();
Igor Murashkin3d07d1a2014-06-20 11:27:03 -07001285 if (halVersion != CAMERA_HAL_API_VERSION_UNSPECIFIED &&
Yin-Chia Yehe074a932015-01-30 10:29:02 -08001286 apiVersion < CAMERA_MODULE_API_VERSION_2_3) {
Igor Murashkin3d07d1a2014-06-20 11:27:03 -07001287 /*
1288 * Either the HAL version is unspecified in which case this just creates
1289 * a camera client selected by the latest device version, or
1290 * it's a particular version in which case the HAL must supported
1291 * the open_legacy call
1292 */
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001293 String8 msg = String8::format("Camera HAL module version %x too old for connectLegacy!",
1294 apiVersion);
1295 ALOGE("%s: %s",
1296 __FUNCTION__, msg.string());
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001297 logRejected(id, getCallingPid(), String8(clientPackageName),
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001298 msg);
1299 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
Zhijun Heb10cdad2014-06-16 16:38:35 -07001300 }
1301
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001302 Status ret = Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001303 sp<Client> client = nullptr;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001304 ret = connectHelper<ICameraClient,Client>(cameraClient, id, halVersion,
1305 clientPackageName, clientUid, USE_CALLING_PID, API_1,
1306 /*legacyMode*/ true, /*shimUpdateOnly*/ false,
1307 /*out*/client);
Zhijun Heb10cdad2014-06-16 16:38:35 -07001308
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001309 if(!ret.isOk()) {
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001310 logRejected(id, getCallingPid(), String8(clientPackageName),
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001311 ret.toString8());
Ruben Brunkcc776712015-02-17 20:18:47 -08001312 return ret;
Zhijun Heb10cdad2014-06-16 16:38:35 -07001313 }
1314
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001315 *device = client;
1316 return ret;
Zhijun Heb10cdad2014-06-16 16:38:35 -07001317}
1318
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001319Status CameraService::connectDevice(
1320 const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
Ruben Brunkcc776712015-02-17 20:18:47 -08001321 int cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001322 const String16& clientPackageName,
Ruben Brunkcc776712015-02-17 20:18:47 -08001323 int clientUid,
1324 /*out*/
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001325 sp<hardware::camera2::ICameraDeviceUser>* device) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001326
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001327 ATRACE_CALL();
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001328 Status ret = Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001329 String8 id = String8::format("%d", cameraId);
1330 sp<CameraDeviceClient> client = nullptr;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001331 ret = connectHelper<hardware::camera2::ICameraDeviceCallbacks,CameraDeviceClient>(cameraCb, id,
1332 CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName,
1333 clientUid, USE_CALLING_PID, API_2,
1334 /*legacyMode*/ false, /*shimUpdateOnly*/ false,
1335 /*out*/client);
Ruben Brunkcc776712015-02-17 20:18:47 -08001336
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001337 if(!ret.isOk()) {
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001338 logRejected(id, getCallingPid(), String8(clientPackageName),
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001339 ret.toString8());
Ruben Brunkcc776712015-02-17 20:18:47 -08001340 return ret;
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001341 }
1342
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001343 *device = client;
1344 return ret;
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001345}
1346
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001347Status CameraService::setTorchMode(const String16& cameraId, bool enabled,
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001348 const sp<IBinder>& clientBinder) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001349
1350 ATRACE_CALL();
Ruben Brunk99e69712015-05-26 17:25:07 -07001351 if (enabled && clientBinder == nullptr) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001352 ALOGE("%s: torch client binder is NULL", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001353 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
1354 "Torch client Binder is null");
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001355 }
1356
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001357 String8 id = String8(cameraId.string());
Ruben Brunk99e69712015-05-26 17:25:07 -07001358 int uid = getCallingUid();
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001359
1360 // verify id is valid.
Ruben Brunkcc776712015-02-17 20:18:47 -08001361 auto state = getCameraState(id);
1362 if (state == nullptr) {
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07001363 ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001364 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
1365 "Camera ID \"%s\" is a not valid camera ID", id.string());
Ruben Brunkcc776712015-02-17 20:18:47 -08001366 }
1367
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001368 int32_t cameraStatus = state->getStatus();
Ruben Brunkcc776712015-02-17 20:18:47 -08001369 if (cameraStatus != ICameraServiceListener::STATUS_PRESENT &&
1370 cameraStatus != ICameraServiceListener::STATUS_NOT_AVAILABLE) {
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07001371 ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001372 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
1373 "Camera ID \"%s\" is a not valid camera ID", id.string());
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001374 }
1375
1376 {
1377 Mutex::Autolock al(mTorchStatusMutex);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001378 int32_t status;
1379 status_t err = getTorchStatusLocked(id, &status);
1380 if (err != OK) {
1381 if (err == NAME_NOT_FOUND) {
1382 return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
1383 "Camera \"%s\" does not have a flash unit", id.string());
1384 }
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001385 ALOGE("%s: getting current torch status failed for camera %s",
1386 __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001387 return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
1388 "Error updating torch status for camera \"%s\": %s (%d)", id.string(),
1389 strerror(-err), err);
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001390 }
1391
1392 if (status == ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001393 if (cameraStatus == ICameraServiceListener::STATUS_NOT_AVAILABLE) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001394 ALOGE("%s: torch mode of camera %s is not available because "
1395 "camera is in use", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001396 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
1397 "Torch for camera \"%s\" is not available due to an existing camera user",
1398 id.string());
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001399 } else {
1400 ALOGE("%s: torch mode of camera %s is not available due to "
1401 "insufficient resources", __FUNCTION__, id.string());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001402 return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
1403 "Torch for camera \"%s\" is not available due to insufficient resources",
1404 id.string());
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001405 }
1406 }
1407 }
1408
Ruben Brunk99e69712015-05-26 17:25:07 -07001409 {
1410 // Update UID map - this is used in the torch status changed callbacks, so must be done
1411 // before setTorchMode
Chien-Yu Chenfe751be2015-09-01 14:16:44 -07001412 Mutex::Autolock al(mTorchUidMapMutex);
Ruben Brunk99e69712015-05-26 17:25:07 -07001413 if (mTorchUidMap.find(id) == mTorchUidMap.end()) {
1414 mTorchUidMap[id].first = uid;
1415 mTorchUidMap[id].second = uid;
1416 } else {
1417 // Set the pending UID
1418 mTorchUidMap[id].first = uid;
1419 }
1420 }
1421
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001422 status_t err = mFlashlight->setTorchMode(id, enabled);
Ruben Brunk99e69712015-05-26 17:25:07 -07001423
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001424 if (err != OK) {
1425 int32_t errorCode;
1426 String8 msg;
1427 switch (err) {
1428 case -ENOSYS:
1429 msg = String8::format("Camera \"%s\" has no flashlight",
1430 id.string());
1431 errorCode = ERROR_ILLEGAL_ARGUMENT;
1432 break;
1433 default:
1434 msg = String8::format(
1435 "Setting torch mode of camera \"%s\" to %d failed: %s (%d)",
1436 id.string(), enabled, strerror(-err), err);
1437 errorCode = ERROR_INVALID_OPERATION;
1438 }
1439 ALOGE("%s: %s", __FUNCTION__, msg.string());
1440 return STATUS_ERROR(errorCode, msg.string());
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001441 }
1442
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001443 {
1444 // update the link to client's death
1445 Mutex::Autolock al(mTorchClientMapMutex);
1446 ssize_t index = mTorchClientMap.indexOfKey(id);
1447 if (enabled) {
1448 if (index == NAME_NOT_FOUND) {
1449 mTorchClientMap.add(id, clientBinder);
1450 } else {
Ruben Brunk99e69712015-05-26 17:25:07 -07001451 mTorchClientMap.valueAt(index)->unlinkToDeath(this);
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001452 mTorchClientMap.replaceValueAt(index, clientBinder);
1453 }
1454 clientBinder->linkToDeath(this);
1455 } else if (index != NAME_NOT_FOUND) {
Ruben Brunk99e69712015-05-26 17:25:07 -07001456 mTorchClientMap.valueAt(index)->unlinkToDeath(this);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001457 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001458 }
1459
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001460 return Status::ok();
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001461}
1462
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001463Status CameraService::notifySystemEvent(int32_t eventId,
1464 const std::vector<int32_t>& args) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001465 ATRACE_CALL();
1466
Ruben Brunk36597b22015-03-20 22:15:57 -07001467 switch(eventId) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001468 case ICameraService::EVENT_USER_SWITCHED: {
1469 doUserSwitch(/*newUserIds*/ args);
Ruben Brunk36597b22015-03-20 22:15:57 -07001470 break;
1471 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001472 case ICameraService::EVENT_NONE:
Ruben Brunk36597b22015-03-20 22:15:57 -07001473 default: {
1474 ALOGW("%s: Received invalid system event from system_server: %d", __FUNCTION__,
1475 eventId);
1476 break;
1477 }
1478 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001479 return Status::ok();
Ruben Brunk36597b22015-03-20 22:15:57 -07001480}
1481
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001482Status CameraService::addListener(const sp<ICameraServiceListener>& listener) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001483 ATRACE_CALL();
1484
Igor Murashkinbfc99152013-02-27 12:55:20 -08001485 ALOGV("%s: Add listener %p", __FUNCTION__, listener.get());
Igor Murashkin634a5152013-02-20 17:15:11 -08001486
Ruben Brunk3450ba72015-06-16 11:00:37 -07001487 if (listener == nullptr) {
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07001488 ALOGE("%s: Listener must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001489 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Null listener given to addListener");
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07001490 }
1491
Igor Murashkinbfc99152013-02-27 12:55:20 -08001492 Mutex::Autolock lock(mServiceLock);
1493
Ruben Brunkcc776712015-02-17 20:18:47 -08001494 {
1495 Mutex::Autolock lock(mStatusListenerLock);
1496 for (auto& it : mListenerList) {
1497 if (IInterface::asBinder(it) == IInterface::asBinder(listener)) {
1498 ALOGW("%s: Tried to add listener %p which was already subscribed",
1499 __FUNCTION__, listener.get());
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001500 return STATUS_ERROR(ERROR_ALREADY_EXISTS, "Listener already registered");
Ruben Brunkcc776712015-02-17 20:18:47 -08001501 }
Igor Murashkinbfc99152013-02-27 12:55:20 -08001502 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001503
1504 mListenerList.push_back(listener);
Igor Murashkinbfc99152013-02-27 12:55:20 -08001505 }
1506
Igor Murashkinbfc99152013-02-27 12:55:20 -08001507
Igor Murashkincba2c162013-03-20 15:56:31 -07001508 /* Immediately signal current status to this listener only */
1509 {
Ruben Brunkcc776712015-02-17 20:18:47 -08001510 Mutex::Autolock lock(mCameraStatesLock);
1511 for (auto& i : mCameraStates) {
1512 // TODO: Update binder to use String16 for camera IDs and remove;
1513 int id = cameraIdToInt(i.first);
1514 if (id == -1) continue;
1515
1516 listener->onStatusChanged(i.second->getStatus(), id);
Igor Murashkincba2c162013-03-20 15:56:31 -07001517 }
1518 }
1519
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001520 /* Immediately signal current torch status to this listener only */
1521 {
1522 Mutex::Autolock al(mTorchStatusMutex);
1523 for (size_t i = 0; i < mTorchStatusMap.size(); i++ ) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08001524 String16 id = String16(mTorchStatusMap.keyAt(i).string());
1525 listener->onTorchStatusChanged(mTorchStatusMap.valueAt(i), id);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001526 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08001527 }
1528
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001529 return Status::ok();
Igor Murashkinbfc99152013-02-27 12:55:20 -08001530}
Ruben Brunkcc776712015-02-17 20:18:47 -08001531
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001532Status CameraService::removeListener(const sp<ICameraServiceListener>& listener) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001533 ATRACE_CALL();
1534
Igor Murashkinbfc99152013-02-27 12:55:20 -08001535 ALOGV("%s: Remove listener %p", __FUNCTION__, listener.get());
1536
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07001537 if (listener == 0) {
1538 ALOGE("%s: Listener must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001539 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Null listener given to removeListener");
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07001540 }
1541
Igor Murashkinbfc99152013-02-27 12:55:20 -08001542 Mutex::Autolock lock(mServiceLock);
1543
Ruben Brunkcc776712015-02-17 20:18:47 -08001544 {
1545 Mutex::Autolock lock(mStatusListenerLock);
1546 for (auto it = mListenerList.begin(); it != mListenerList.end(); it++) {
1547 if (IInterface::asBinder(*it) == IInterface::asBinder(listener)) {
1548 mListenerList.erase(it);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001549 return Status::ok();
Ruben Brunkcc776712015-02-17 20:18:47 -08001550 }
Igor Murashkinbfc99152013-02-27 12:55:20 -08001551 }
1552 }
1553
1554 ALOGW("%s: Tried to remove a listener %p which was not subscribed",
1555 __FUNCTION__, listener.get());
1556
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001557 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Unregistered listener given to removeListener");
Igor Murashkin634a5152013-02-20 17:15:11 -08001558}
1559
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001560Status CameraService::getLegacyParameters(int cameraId, /*out*/String16* parameters) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001561
1562 ATRACE_CALL();
Igor Murashkin65d14b92014-06-17 12:03:20 -07001563 ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
1564
1565 if (parameters == NULL) {
1566 ALOGE("%s: parameters must not be null", __FUNCTION__);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001567 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "Parameters must not be null");
Igor Murashkin65d14b92014-06-17 12:03:20 -07001568 }
1569
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001570 Status ret = Status::ok();
Igor Murashkin65d14b92014-06-17 12:03:20 -07001571
1572 CameraParameters shimParams;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001573 if (!(ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)).isOk()) {
Igor Murashkin65d14b92014-06-17 12:03:20 -07001574 // Error logged by caller
1575 return ret;
1576 }
1577
1578 String8 shimParamsString8 = shimParams.flatten();
1579 String16 shimParamsString16 = String16(shimParamsString8);
1580
1581 *parameters = shimParamsString16;
1582
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001583 return ret;
Igor Murashkin65d14b92014-06-17 12:03:20 -07001584}
1585
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001586Status CameraService::supportsCameraApi(int cameraId, int apiVersion, bool *isSupported) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001587 ATRACE_CALL();
1588
Igor Murashkin65d14b92014-06-17 12:03:20 -07001589 ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
1590
1591 switch (apiVersion) {
1592 case API_VERSION_1:
1593 case API_VERSION_2:
1594 break;
1595 default:
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001596 String8 msg = String8::format("Unknown API version %d", apiVersion);
1597 ALOGE("%s: %s", __FUNCTION__, msg.string());
1598 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
Igor Murashkin65d14b92014-06-17 12:03:20 -07001599 }
1600
1601 int facing = -1;
1602 int deviceVersion = getDeviceVersion(cameraId, &facing);
1603
1604 switch(deviceVersion) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001605 case CAMERA_DEVICE_API_VERSION_1_0:
1606 case CAMERA_DEVICE_API_VERSION_3_0:
1607 case CAMERA_DEVICE_API_VERSION_3_1:
1608 if (apiVersion == API_VERSION_2) {
1609 ALOGV("%s: Camera id %d uses HAL version %d <3.2, doesn't support api2 without shim",
1610 __FUNCTION__, cameraId, deviceVersion);
1611 *isSupported = false;
1612 } else { // if (apiVersion == API_VERSION_1) {
1613 ALOGV("%s: Camera id %d uses older HAL before 3.2, but api1 is always supported",
1614 __FUNCTION__, cameraId);
1615 *isSupported = true;
1616 }
1617 break;
1618 case CAMERA_DEVICE_API_VERSION_3_2:
1619 case CAMERA_DEVICE_API_VERSION_3_3:
1620 ALOGV("%s: Camera id %d uses HAL3.2 or newer, supports api1/api2 directly",
Igor Murashkin65d14b92014-06-17 12:03:20 -07001621 __FUNCTION__, cameraId);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001622 *isSupported = true;
1623 break;
1624 case -1: {
1625 String8 msg = String8::format("Unknown camera ID %d", cameraId);
1626 ALOGE("%s: %s", __FUNCTION__, msg.string());
1627 return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
Igor Murashkin65d14b92014-06-17 12:03:20 -07001628 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001629 default: {
1630 String8 msg = String8::format("Unknown device version %d for device %d",
1631 deviceVersion, cameraId);
1632 ALOGE("%s: %s", __FUNCTION__, msg.string());
1633 return STATUS_ERROR(ERROR_INVALID_OPERATION, msg.string());
1634 }
Igor Murashkin65d14b92014-06-17 12:03:20 -07001635 }
1636
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001637 return Status::ok();
Igor Murashkin65d14b92014-06-17 12:03:20 -07001638}
1639
Ruben Brunkcc776712015-02-17 20:18:47 -08001640void CameraService::removeByClient(const BasicClient* client) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07001641 Mutex::Autolock lock(mServiceLock);
Ruben Brunkcc776712015-02-17 20:18:47 -08001642 for (auto& i : mActiveClientManager.getAll()) {
1643 auto clientSp = i->getValue();
1644 if (clientSp.get() == client) {
1645 mActiveClientManager.remove(i);
Igor Murashkin634a5152013-02-20 17:15:11 -08001646 }
Igor Murashkinecf17e82012-10-02 16:05:11 -07001647 }
Igor Murashkin634a5152013-02-20 17:15:11 -08001648}
1649
Ruben Brunkcc776712015-02-17 20:18:47 -08001650bool CameraService::evictClientIdByRemote(const wp<IBinder>& remote) {
1651 const int callingPid = getCallingPid();
1652 const int servicePid = getpid();
1653 bool ret = false;
1654 {
1655 // Acquire mServiceLock and prevent other clients from connecting
1656 std::unique_ptr<AutoConditionLock> lock =
1657 AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
Igor Murashkin634a5152013-02-20 17:15:11 -08001658
Igor Murashkin634a5152013-02-20 17:15:11 -08001659
Ruben Brunkcc776712015-02-17 20:18:47 -08001660 std::vector<sp<BasicClient>> evicted;
1661 for (auto& i : mActiveClientManager.getAll()) {
1662 auto clientSp = i->getValue();
1663 if (clientSp.get() == nullptr) {
1664 ALOGE("%s: Dead client still in mActiveClientManager.", __FUNCTION__);
1665 mActiveClientManager.remove(i);
1666 continue;
1667 }
1668 if (remote == clientSp->getRemote() && (callingPid == servicePid ||
1669 callingPid == clientSp->getClientPid())) {
1670 mActiveClientManager.remove(i);
1671 evicted.push_back(clientSp);
Igor Murashkin634a5152013-02-20 17:15:11 -08001672
Ruben Brunkcc776712015-02-17 20:18:47 -08001673 // Notify the client of disconnection
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001674 clientSp->notifyError(
1675 hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
Ruben Brunkcc776712015-02-17 20:18:47 -08001676 CaptureResultExtras());
Igor Murashkin634a5152013-02-20 17:15:11 -08001677 }
1678 }
1679
Ruben Brunkcc776712015-02-17 20:18:47 -08001680 // Do not hold mServiceLock while disconnecting clients, but retain the condition blocking
1681 // other clients from connecting in mServiceLockWrapper if held
1682 mServiceLock.unlock();
1683
Ruben Brunk36597b22015-03-20 22:15:57 -07001684 // Do not clear caller identity, remote caller should be client proccess
1685
Ruben Brunkcc776712015-02-17 20:18:47 -08001686 for (auto& i : evicted) {
1687 if (i.get() != nullptr) {
1688 i->disconnect();
1689 ret = true;
1690 }
Igor Murashkin634a5152013-02-20 17:15:11 -08001691 }
1692
Ruben Brunkcc776712015-02-17 20:18:47 -08001693 // Reacquire mServiceLock
1694 mServiceLock.lock();
Igor Murashkin634a5152013-02-20 17:15:11 -08001695
Ruben Brunkcc776712015-02-17 20:18:47 -08001696 } // lock is destroyed, allow further connect calls
1697
1698 return ret;
Igor Murashkinecf17e82012-10-02 16:05:11 -07001699}
1700
Igor Murashkinecf17e82012-10-02 16:05:11 -07001701
Eino-Ville Talvalabad43582015-08-14 13:12:32 -07001702/**
1703 * Check camera capabilities, such as support for basic color operation
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08001704 * Also check that the device HAL version is still in support
Eino-Ville Talvalabad43582015-08-14 13:12:32 -07001705 */
1706int CameraService::checkCameraCapabilities(int id, camera_info info, int *latestStrangeCameraId) {
Yin-Chia Yeh654b4bf2015-12-08 12:19:31 -08001707 // device_version undefined in CAMERA_MODULE_API_VERSION_1_0,
1708 // All CAMERA_MODULE_API_VERSION_1_0 devices are backward-compatible
1709 if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
1710 // Verify the device version is in the supported range
1711 switch (info.device_version) {
1712 case CAMERA_DEVICE_API_VERSION_1_0:
1713 case CAMERA_DEVICE_API_VERSION_3_0:
1714 case CAMERA_DEVICE_API_VERSION_3_1:
1715 case CAMERA_DEVICE_API_VERSION_3_2:
1716 case CAMERA_DEVICE_API_VERSION_3_3:
1717 // in support
1718 break;
1719 case CAMERA_DEVICE_API_VERSION_2_0:
1720 case CAMERA_DEVICE_API_VERSION_2_1:
1721 // no longer supported
1722 default:
1723 ALOGE("%s: Device %d has HAL version %x, which is not supported",
1724 __FUNCTION__, id, info.device_version);
1725 String8 msg = String8::format(
1726 "Unsupported device HAL version %x for device %d",
1727 info.device_version, id);
1728 logServiceError(msg.string(), NO_INIT);
1729 return NO_INIT;
1730 }
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08001731 }
1732
Eino-Ville Talvalabad43582015-08-14 13:12:32 -07001733 // Assume all devices pre-v3.3 are backward-compatible
1734 bool isBackwardCompatible = true;
1735 if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0
1736 && info.device_version >= CAMERA_DEVICE_API_VERSION_3_3) {
1737 isBackwardCompatible = false;
1738 status_t res;
1739 camera_metadata_ro_entry_t caps;
1740 res = find_camera_metadata_ro_entry(
1741 info.static_camera_characteristics,
1742 ANDROID_REQUEST_AVAILABLE_CAPABILITIES,
1743 &caps);
1744 if (res != 0) {
1745 ALOGW("%s: Unable to find camera capabilities for camera device %d",
1746 __FUNCTION__, id);
1747 caps.count = 0;
1748 }
1749 for (size_t i = 0; i < caps.count; i++) {
1750 if (caps.data.u8[i] ==
1751 ANDROID_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE) {
1752 isBackwardCompatible = true;
1753 break;
1754 }
1755 }
1756 }
1757
1758 if (!isBackwardCompatible) {
1759 mNumberOfNormalCameras--;
1760 *latestStrangeCameraId = id;
1761 } else {
1762 if (id > *latestStrangeCameraId) {
1763 ALOGE("%s: Normal camera ID %d higher than strange camera ID %d. "
1764 "This is not allowed due backward-compatibility requirements",
1765 __FUNCTION__, id, *latestStrangeCameraId);
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08001766 logServiceError("Invalid order of camera devices", NO_INIT);
Eino-Ville Talvalabad43582015-08-14 13:12:32 -07001767 mNumberOfCameras = 0;
1768 mNumberOfNormalCameras = 0;
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08001769 return NO_INIT;
Eino-Ville Talvalabad43582015-08-14 13:12:32 -07001770 }
1771 }
1772 return OK;
1773}
1774
Ruben Brunkcc776712015-02-17 20:18:47 -08001775std::shared_ptr<CameraService::CameraState> CameraService::getCameraState(
1776 const String8& cameraId) const {
1777 std::shared_ptr<CameraState> state;
1778 {
1779 Mutex::Autolock lock(mCameraStatesLock);
1780 auto iter = mCameraStates.find(cameraId);
1781 if (iter != mCameraStates.end()) {
1782 state = iter->second;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001783 }
1784 }
Ruben Brunkcc776712015-02-17 20:18:47 -08001785 return state;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001786}
1787
Ruben Brunkcc776712015-02-17 20:18:47 -08001788sp<CameraService::BasicClient> CameraService::removeClientLocked(const String8& cameraId) {
1789 // Remove from active clients list
1790 auto clientDescriptorPtr = mActiveClientManager.remove(cameraId);
1791 if (clientDescriptorPtr == nullptr) {
1792 ALOGW("%s: Could not evict client, no client for camera ID %s", __FUNCTION__,
1793 cameraId.string());
1794 return sp<BasicClient>{nullptr};
1795 }
1796
1797 return clientDescriptorPtr->getValue();
Keun young Parkd8973a72012-03-28 14:13:09 -07001798}
1799
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001800void CameraService::doUserSwitch(const std::vector<int32_t>& newUserIds) {
Ruben Brunk36597b22015-03-20 22:15:57 -07001801 // Acquire mServiceLock and prevent other clients from connecting
1802 std::unique_ptr<AutoConditionLock> lock =
1803 AutoConditionLock::waitAndAcquire(mServiceLockWrapper);
1804
Ruben Brunk6267b532015-04-30 17:44:07 -07001805 std::set<userid_t> newAllowedUsers;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001806 for (size_t i = 0; i < newUserIds.size(); i++) {
1807 if (newUserIds[i] < 0) {
Ruben Brunk6267b532015-04-30 17:44:07 -07001808 ALOGE("%s: Bad user ID %d given during user switch, ignoring.",
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001809 __FUNCTION__, newUserIds[i]);
Ruben Brunk6267b532015-04-30 17:44:07 -07001810 return;
1811 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001812 newAllowedUsers.insert(static_cast<userid_t>(newUserIds[i]));
Ruben Brunk36597b22015-03-20 22:15:57 -07001813 }
1814
Ruben Brunka8ca9152015-04-07 14:23:40 -07001815
Ruben Brunk6267b532015-04-30 17:44:07 -07001816 if (newAllowedUsers == mAllowedUsers) {
1817 ALOGW("%s: Received notification of user switch with no updated user IDs.", __FUNCTION__);
1818 return;
1819 }
1820
1821 logUserSwitch(mAllowedUsers, newAllowedUsers);
1822
1823 mAllowedUsers = std::move(newAllowedUsers);
Ruben Brunk36597b22015-03-20 22:15:57 -07001824
1825 // Current user has switched, evict all current clients.
1826 std::vector<sp<BasicClient>> evicted;
1827 for (auto& i : mActiveClientManager.getAll()) {
1828 auto clientSp = i->getValue();
1829
1830 if (clientSp.get() == nullptr) {
1831 ALOGE("%s: Dead client still in mActiveClientManager.", __FUNCTION__);
1832 continue;
1833 }
1834
Ruben Brunk6267b532015-04-30 17:44:07 -07001835 // Don't evict clients that are still allowed.
1836 uid_t clientUid = clientSp->getClientUid();
1837 userid_t clientUserId = multiuser_get_user_id(clientUid);
1838 if (mAllowedUsers.find(clientUserId) != mAllowedUsers.end()) {
1839 continue;
1840 }
1841
Ruben Brunk36597b22015-03-20 22:15:57 -07001842 evicted.push_back(clientSp);
1843
1844 String8 curTime = getFormattedCurrentTime();
1845
1846 ALOGE("Evicting conflicting client for camera ID %s due to user change",
1847 i->getKey().string());
Ruben Brunka8ca9152015-04-07 14:23:40 -07001848
Ruben Brunk36597b22015-03-20 22:15:57 -07001849 // Log the clients evicted
Ruben Brunka8ca9152015-04-07 14:23:40 -07001850 logEvent(String8::format("EVICT device %s client held by package %s (PID %"
Ruben Brunk36597b22015-03-20 22:15:57 -07001851 PRId32 ", priority %" PRId32 ")\n - Evicted due to user switch.",
Ruben Brunka8ca9152015-04-07 14:23:40 -07001852 i->getKey().string(), String8{clientSp->getPackageName()}.string(),
1853 i->getOwnerId(), i->getPriority()));
Ruben Brunk36597b22015-03-20 22:15:57 -07001854
1855 }
1856
1857 // Do not hold mServiceLock while disconnecting clients, but retain the condition
1858 // blocking other clients from connecting in mServiceLockWrapper if held.
1859 mServiceLock.unlock();
1860
1861 // Clear caller identity temporarily so client disconnect PID checks work correctly
1862 int64_t token = IPCThreadState::self()->clearCallingIdentity();
1863
1864 for (auto& i : evicted) {
1865 i->disconnect();
1866 }
1867
1868 IPCThreadState::self()->restoreCallingIdentity(token);
1869
1870 // Reacquire mServiceLock
1871 mServiceLock.lock();
1872}
Ruben Brunkcc776712015-02-17 20:18:47 -08001873
Ruben Brunka8ca9152015-04-07 14:23:40 -07001874void CameraService::logEvent(const char* event) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001875 String8 curTime = getFormattedCurrentTime();
Ruben Brunka8ca9152015-04-07 14:23:40 -07001876 Mutex::Autolock l(mLogLock);
1877 mEventLog.add(String8::format("%s : %s", curTime.string(), event));
Mathias Agopian65ab4712010-07-14 17:59:35 -07001878}
1879
Ruben Brunka8ca9152015-04-07 14:23:40 -07001880void CameraService::logDisconnected(const char* cameraId, int clientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001881 const char* clientPackage) {
Ruben Brunkcc776712015-02-17 20:18:47 -08001882 // Log the clients evicted
Ruben Brunka8ca9152015-04-07 14:23:40 -07001883 logEvent(String8::format("DISCONNECT device %s client for package %s (PID %d)", cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001884 clientPackage, clientPid));
Ruben Brunka8ca9152015-04-07 14:23:40 -07001885}
1886
1887void CameraService::logConnected(const char* cameraId, int clientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001888 const char* clientPackage) {
Ruben Brunka8ca9152015-04-07 14:23:40 -07001889 // Log the clients evicted
1890 logEvent(String8::format("CONNECT device %s client for package %s (PID %d)", cameraId,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001891 clientPackage, clientPid));
Ruben Brunka8ca9152015-04-07 14:23:40 -07001892}
1893
1894void CameraService::logRejected(const char* cameraId, int clientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001895 const char* clientPackage, const char* reason) {
Ruben Brunka8ca9152015-04-07 14:23:40 -07001896 // Log the client rejected
1897 logEvent(String8::format("REJECT device %s client for package %s (PID %d), reason: (%s)",
Svetoslav Ganov280405a2015-05-12 02:19:27 +00001898 cameraId, clientPackage, clientPid, reason));
Ruben Brunka8ca9152015-04-07 14:23:40 -07001899}
1900
Ruben Brunk6267b532015-04-30 17:44:07 -07001901void CameraService::logUserSwitch(const std::set<userid_t>& oldUserIds,
1902 const std::set<userid_t>& newUserIds) {
1903 String8 newUsers = toString(newUserIds);
1904 String8 oldUsers = toString(oldUserIds);
Ruben Brunka8ca9152015-04-07 14:23:40 -07001905 // Log the new and old users
Ruben Brunk6267b532015-04-30 17:44:07 -07001906 logEvent(String8::format("USER_SWITCH previous allowed users: %s , current allowed users: %s",
1907 oldUsers.string(), newUsers.string()));
Ruben Brunka8ca9152015-04-07 14:23:40 -07001908}
1909
1910void CameraService::logDeviceRemoved(const char* cameraId, const char* reason) {
1911 // Log the device removal
1912 logEvent(String8::format("REMOVE device %s, reason: (%s)", cameraId, reason));
1913}
1914
1915void CameraService::logDeviceAdded(const char* cameraId, const char* reason) {
1916 // Log the device removal
1917 logEvent(String8::format("ADD device %s, reason: (%s)", cameraId, reason));
1918}
1919
1920void CameraService::logClientDied(int clientPid, const char* reason) {
1921 // Log the device removal
1922 logEvent(String8::format("DIED client(s) with PID %d, reason: (%s)", clientPid, reason));
Igor Murashkinecf17e82012-10-02 16:05:11 -07001923}
1924
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07001925void CameraService::logServiceError(const char* msg, int errorCode) {
1926 String8 curTime = getFormattedCurrentTime();
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08001927 logEvent(String8::format("SERVICE ERROR: %s : %d (%s)", msg, errorCode, strerror(-errorCode)));
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07001928}
1929
Ruben Brunk36597b22015-03-20 22:15:57 -07001930status_t CameraService::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
1931 uint32_t flags) {
1932
1933 const int pid = getCallingPid();
1934 const int selfPid = getpid();
1935
Mathias Agopian65ab4712010-07-14 17:59:35 -07001936 // Permission checks
1937 switch (code) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08001938 case BnCameraService::NOTIFYSYSTEMEVENT: {
Ruben Brunk36597b22015-03-20 22:15:57 -07001939 if (pid != selfPid) {
1940 // Ensure we're being called by system_server, or similar process with
1941 // permissions to notify the camera service about system events
1942 if (!checkCallingPermission(
1943 String16("android.permission.CAMERA_SEND_SYSTEM_EVENTS"))) {
1944 const int uid = getCallingUid();
1945 ALOGE("Permission Denial: cannot send updates to camera service about system"
1946 " events from pid=%d, uid=%d", pid, uid);
1947 return PERMISSION_DENIED;
1948 }
1949 }
1950 break;
1951 }
Mathias Agopian65ab4712010-07-14 17:59:35 -07001952 }
1953
1954 return BnCameraService::onTransact(code, data, reply, flags);
1955}
1956
Mathias Agopian65ab4712010-07-14 17:59:35 -07001957// We share the media players for shutter and recording sound for all clients.
1958// A reference count is kept to determine when we will actually release the
1959// media players.
1960
Chih-Chung Changff4f55c2011-10-17 19:03:12 +08001961MediaPlayer* CameraService::newMediaPlayer(const char *file) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001962 MediaPlayer* mp = new MediaPlayer();
Andreas Huber1b86fe02014-01-29 11:13:26 -08001963 if (mp->setDataSource(NULL /* httpService */, file, NULL) == NO_ERROR) {
Eino-Ville Talvala60a78ac2012-01-05 15:34:53 -08001964 mp->setAudioStreamType(AUDIO_STREAM_ENFORCED_AUDIBLE);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001965 mp->prepare();
1966 } else {
Steve Block29357bc2012-01-06 19:20:56 +00001967 ALOGE("Failed to load CameraService sounds: %s", file);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001968 return NULL;
1969 }
1970 return mp;
1971}
1972
1973void CameraService::loadSound() {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001974 ATRACE_CALL();
1975
Mathias Agopian65ab4712010-07-14 17:59:35 -07001976 Mutex::Autolock lock(mSoundLock);
1977 LOG1("CameraService::loadSound ref=%d", mSoundRef);
1978 if (mSoundRef++) return;
1979
1980 mSoundPlayer[SOUND_SHUTTER] = newMediaPlayer("/system/media/audio/ui/camera_click.ogg");
Chien-Yu Chen82104eb2015-10-14 11:29:31 -07001981 mSoundPlayer[SOUND_RECORDING_START] = newMediaPlayer("/system/media/audio/ui/VideoRecord.ogg");
1982 mSoundPlayer[SOUND_RECORDING_STOP] = newMediaPlayer("/system/media/audio/ui/VideoStop.ogg");
Mathias Agopian65ab4712010-07-14 17:59:35 -07001983}
1984
1985void CameraService::releaseSound() {
1986 Mutex::Autolock lock(mSoundLock);
1987 LOG1("CameraService::releaseSound ref=%d", mSoundRef);
1988 if (--mSoundRef) return;
1989
1990 for (int i = 0; i < NUM_SOUNDS; i++) {
1991 if (mSoundPlayer[i] != 0) {
1992 mSoundPlayer[i]->disconnect();
1993 mSoundPlayer[i].clear();
1994 }
1995 }
1996}
1997
1998void CameraService::playSound(sound_kind kind) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07001999 ATRACE_CALL();
2000
Mathias Agopian65ab4712010-07-14 17:59:35 -07002001 LOG1("playSound(%d)", kind);
2002 Mutex::Autolock lock(mSoundLock);
2003 sp<MediaPlayer> player = mSoundPlayer[kind];
2004 if (player != 0) {
Chih-Chung Chang8888a752011-10-20 10:47:26 +08002005 player->seekTo(0);
2006 player->start();
Mathias Agopian65ab4712010-07-14 17:59:35 -07002007 }
2008}
2009
2010// ----------------------------------------------------------------------------
2011
2012CameraService::Client::Client(const sp<CameraService>& cameraService,
Wu-cheng Lib7a67942010-08-17 15:45:37 -07002013 const sp<ICameraClient>& cameraClient,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002014 const String16& clientPackageName,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002015 int cameraId, int cameraFacing,
2016 int clientPid, uid_t clientUid,
2017 int servicePid) :
Eino-Ville Talvalae992e752014-11-07 16:17:48 -08002018 CameraService::BasicClient(cameraService,
Marco Nelissenf8880202014-11-14 07:58:25 -08002019 IInterface::asBinder(cameraClient),
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002020 clientPackageName,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002021 cameraId, cameraFacing,
2022 clientPid, clientUid,
2023 servicePid)
Igor Murashkin634a5152013-02-20 17:15:11 -08002024{
Mathias Agopian65ab4712010-07-14 17:59:35 -07002025 int callingPid = getCallingPid();
Wu-cheng Li2fd24402012-02-23 19:01:00 -08002026 LOG1("Client::Client E (pid %d, id %d)", callingPid, cameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07002027
Igor Murashkin44cfcf02013-03-01 16:22:28 -08002028 mRemoteCallback = cameraClient;
Mathias Agopian65ab4712010-07-14 17:59:35 -07002029
Mathias Agopian65ab4712010-07-14 17:59:35 -07002030 cameraService->loadSound();
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002031
Wu-cheng Li2fd24402012-02-23 19:01:00 -08002032 LOG1("Client::Client X (pid %d, id %d)", callingPid, cameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07002033}
2034
Mathias Agopian65ab4712010-07-14 17:59:35 -07002035// tear down the client
2036CameraService::Client::~Client() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07002037 ALOGV("~Client");
Igor Murashkin634a5152013-02-20 17:15:11 -08002038 mDestructionStarted = true;
2039
Eino-Ville Talvalaf69c70d2012-05-20 15:59:14 -07002040 mCameraService->releaseSound();
Igor Murashkin036bc3e2012-10-08 15:09:46 -07002041 // unconditionally disconnect. function is idempotent
2042 Client::disconnect();
Mathias Agopian65ab4712010-07-14 17:59:35 -07002043}
2044
Igor Murashkin634a5152013-02-20 17:15:11 -08002045CameraService::BasicClient::BasicClient(const sp<CameraService>& cameraService,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002046 const sp<IBinder>& remoteCallback,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002047 const String16& clientPackageName,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002048 int cameraId, int cameraFacing,
2049 int clientPid, uid_t clientUid,
2050 int servicePid):
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002051 mClientPackageName(clientPackageName), mDisconnected(false)
Igor Murashkin634a5152013-02-20 17:15:11 -08002052{
2053 mCameraService = cameraService;
Igor Murashkin44cfcf02013-03-01 16:22:28 -08002054 mRemoteBinder = remoteCallback;
Igor Murashkin634a5152013-02-20 17:15:11 -08002055 mCameraId = cameraId;
2056 mCameraFacing = cameraFacing;
2057 mClientPid = clientPid;
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002058 mClientUid = clientUid;
Igor Murashkin634a5152013-02-20 17:15:11 -08002059 mServicePid = servicePid;
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002060 mOpsActive = false;
Igor Murashkin634a5152013-02-20 17:15:11 -08002061 mDestructionStarted = false;
Yin-Chia Yeh0dea57f2015-12-09 16:46:07 -08002062
2063 // In some cases the calling code has no access to the package it runs under.
2064 // For example, NDK camera API.
2065 // In this case we will get the packages for the calling UID and pick the first one
2066 // for attributing the app op. This will work correctly for runtime permissions
2067 // as for legacy apps we will toggle the app op for all packages in the UID.
2068 // The caveat is that the operation may be attributed to the wrong package and
2069 // stats based on app ops may be slightly off.
2070 if (mClientPackageName.size() <= 0) {
2071 sp<IServiceManager> sm = defaultServiceManager();
2072 sp<IBinder> binder = sm->getService(String16(kPermissionServiceName));
2073 if (binder == 0) {
2074 ALOGE("Cannot get permission service");
2075 // Leave mClientPackageName unchanged (empty) and the further interaction
2076 // with camera will fail in BasicClient::startCameraOps
2077 return;
2078 }
2079
2080 sp<IPermissionController> permCtrl = interface_cast<IPermissionController>(binder);
2081 Vector<String16> packages;
2082
2083 permCtrl->getPackagesForUid(mClientUid, packages);
2084
2085 if (packages.isEmpty()) {
2086 ALOGE("No packages for calling UID");
2087 // Leave mClientPackageName unchanged (empty) and the further interaction
2088 // with camera will fail in BasicClient::startCameraOps
2089 return;
2090 }
2091 mClientPackageName = packages[0];
2092 }
Igor Murashkin634a5152013-02-20 17:15:11 -08002093}
2094
2095CameraService::BasicClient::~BasicClient() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07002096 ALOGV("~BasicClient");
Igor Murashkin634a5152013-02-20 17:15:11 -08002097 mDestructionStarted = true;
2098}
2099
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002100binder::Status CameraService::BasicClient::disconnect() {
2101 binder::Status res = Status::ok();
Ruben Brunk36597b22015-03-20 22:15:57 -07002102 if (mDisconnected) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002103 return res;
Ruben Brunk36597b22015-03-20 22:15:57 -07002104 }
Eino-Ville Talvala24901c82015-09-04 14:15:58 -07002105 mDisconnected = true;
Ruben Brunkcc776712015-02-17 20:18:47 -08002106
2107 mCameraService->removeByClient(this);
2108 mCameraService->logDisconnected(String8::format("%d", mCameraId), mClientPid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002109 String8(mClientPackageName));
Ruben Brunkcc776712015-02-17 20:18:47 -08002110
2111 sp<IBinder> remote = getRemote();
2112 if (remote != nullptr) {
2113 remote->unlinkToDeath(mCameraService);
2114 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002115
2116 finishCameraOps();
Ruben Brunkcc776712015-02-17 20:18:47 -08002117 ALOGI("%s: Disconnected client for camera %d for PID %d", __FUNCTION__, mCameraId, mClientPid);
2118
Igor Murashkincba2c162013-03-20 15:56:31 -07002119 // client shouldn't be able to call into us anymore
2120 mClientPid = 0;
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002121
2122 return res;
Igor Murashkin634a5152013-02-20 17:15:11 -08002123}
2124
Eino-Ville Talvalac4003962016-01-13 10:07:04 -08002125status_t CameraService::BasicClient::dump(int, const Vector<String16>&) {
2126 // No dumping of clients directly over Binder,
2127 // must go through CameraService::dump
2128 android_errorWriteWithInfoLog(SN_EVENT_LOG_ID, "26265403",
2129 IPCThreadState::self()->getCallingUid(), NULL, 0);
2130 return OK;
2131}
2132
Ruben Brunkcc776712015-02-17 20:18:47 -08002133String16 CameraService::BasicClient::getPackageName() const {
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002134 return mClientPackageName;
Ruben Brunkcc776712015-02-17 20:18:47 -08002135}
2136
2137
2138int CameraService::BasicClient::getClientPid() const {
2139 return mClientPid;
2140}
2141
Ruben Brunk6267b532015-04-30 17:44:07 -07002142uid_t CameraService::BasicClient::getClientUid() const {
2143 return mClientUid;
2144}
2145
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07002146bool CameraService::BasicClient::canCastToApiClient(apiLevel level) const {
2147 // Defaults to API2.
2148 return level == API_2;
2149}
2150
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002151status_t CameraService::BasicClient::startCameraOps() {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002152 ATRACE_CALL();
2153
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002154 int32_t res;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002155 // Notify app ops that the camera is not available
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002156 mOpsCallback = new OpsCallback(this);
2157
Igor Murashkine6800ce2013-03-04 17:25:57 -08002158 {
2159 ALOGV("%s: Start camera ops, package name = %s, client UID = %d",
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002160 __FUNCTION__, String8(mClientPackageName).string(), mClientUid);
Igor Murashkine6800ce2013-03-04 17:25:57 -08002161 }
2162
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002163 mAppOpsManager.startWatchingMode(AppOpsManager::OP_CAMERA,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002164 mClientPackageName, mOpsCallback);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002165 res = mAppOpsManager.startOp(AppOpsManager::OP_CAMERA,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002166 mClientUid, mClientPackageName);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002167
Svetoslav28e8ef72015-05-11 19:21:31 -07002168 if (res == AppOpsManager::MODE_ERRORED) {
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002169 ALOGI("Camera %d: Access for \"%s\" has been revoked",
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002170 mCameraId, String8(mClientPackageName).string());
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002171 return PERMISSION_DENIED;
2172 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002173
Svetoslav28e8ef72015-05-11 19:21:31 -07002174 if (res == AppOpsManager::MODE_IGNORED) {
2175 ALOGI("Camera %d: Access for \"%s\" has been restricted",
2176 mCameraId, String8(mClientPackageName).string());
Eino-Ville Talvalae3afb2c2015-06-03 16:03:30 -07002177 // Return the same error as for device policy manager rejection
2178 return -EACCES;
Svetoslav28e8ef72015-05-11 19:21:31 -07002179 }
2180
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002181 mOpsActive = true;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002182
2183 // Transition device availability listeners from PRESENT -> NOT_AVAILABLE
2184 mCameraService->updateStatus(ICameraServiceListener::STATUS_NOT_AVAILABLE,
Ruben Brunkcc776712015-02-17 20:18:47 -08002185 String8::format("%d", mCameraId));
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002186
Eino-Ville Talvala412fe562015-08-20 17:08:32 -07002187 // Transition device state to OPEN
2188 mCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
2189 String8::format("%d", mCameraId));
2190
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002191 return OK;
2192}
2193
2194status_t CameraService::BasicClient::finishCameraOps() {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002195 ATRACE_CALL();
2196
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002197 // Check if startCameraOps succeeded, and if so, finish the camera op
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002198 if (mOpsActive) {
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002199 // Notify app ops that the camera is available again
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002200 mAppOpsManager.finishOp(AppOpsManager::OP_CAMERA, mClientUid,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002201 mClientPackageName);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002202 mOpsActive = false;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002203
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002204 std::initializer_list<int32_t> rejected = {ICameraServiceListener::STATUS_NOT_PRESENT,
Ruben Brunkcc776712015-02-17 20:18:47 -08002205 ICameraServiceListener::STATUS_ENUMERATING};
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002206
Ruben Brunkcc776712015-02-17 20:18:47 -08002207 // Transition to PRESENT if the camera is not in either of the rejected states
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002208 mCameraService->updateStatus(ICameraServiceListener::STATUS_PRESENT,
Ruben Brunkcc776712015-02-17 20:18:47 -08002209 String8::format("%d", mCameraId), rejected);
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002210
Eino-Ville Talvala412fe562015-08-20 17:08:32 -07002211 // Transition device state to CLOSED
2212 mCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
2213 String8::format("%d", mCameraId));
2214
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002215 // Notify flashlight that a camera device is closed.
2216 mCameraService->mFlashlight->deviceClosed(
2217 String8::format("%d", mCameraId));
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002218 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07002219 // Always stop watching, even if no camera op is active
Eino-Ville Talvalae992e752014-11-07 16:17:48 -08002220 if (mOpsCallback != NULL) {
2221 mAppOpsManager.stopWatchingMode(mOpsCallback);
2222 }
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002223 mOpsCallback.clear();
2224
2225 return OK;
2226}
2227
2228void CameraService::BasicClient::opChanged(int32_t op, const String16& packageName) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002229 ATRACE_CALL();
2230
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002231 String8 name(packageName);
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002232 String8 myName(mClientPackageName);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002233
2234 if (op != AppOpsManager::OP_CAMERA) {
2235 ALOGW("Unexpected app ops notification received: %d", op);
2236 return;
2237 }
2238
2239 int32_t res;
2240 res = mAppOpsManager.checkOp(AppOpsManager::OP_CAMERA,
Svetoslav Ganov280405a2015-05-12 02:19:27 +00002241 mClientUid, mClientPackageName);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002242 ALOGV("checkOp returns: %d, %s ", res,
2243 res == AppOpsManager::MODE_ALLOWED ? "ALLOWED" :
2244 res == AppOpsManager::MODE_IGNORED ? "IGNORED" :
2245 res == AppOpsManager::MODE_ERRORED ? "ERRORED" :
2246 "UNKNOWN");
2247
2248 if (res != AppOpsManager::MODE_ALLOWED) {
2249 ALOGI("Camera %d: Access for \"%s\" revoked", mCameraId,
2250 myName.string());
2251 // Reset the client PID to allow server-initiated disconnect,
2252 // and to prevent further calls by client.
2253 mClientPid = getCallingPid();
Jianing Weicb0652e2014-03-12 18:29:36 -07002254 CaptureResultExtras resultExtras; // a dummy result (invalid)
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002255 notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_SERVICE, resultExtras);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002256 disconnect();
2257 }
2258}
2259
Mathias Agopian65ab4712010-07-14 17:59:35 -07002260// ----------------------------------------------------------------------------
2261
Ruben Brunkcc776712015-02-17 20:18:47 -08002262// Provide client strong pointer for callbacks.
2263sp<CameraService::Client> CameraService::Client::getClientFromCookie(void* user) {
2264 String8 cameraId = String8::format("%d", (int)(intptr_t) user);
2265 auto clientDescriptor = gCameraService->mActiveClientManager.get(cameraId);
2266 if (clientDescriptor != nullptr) {
2267 return sp<Client>{
2268 static_cast<Client*>(clientDescriptor->getValue().get())};
2269 }
2270 return sp<Client>{nullptr};
Mathias Agopian65ab4712010-07-14 17:59:35 -07002271}
2272
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002273void CameraService::Client::notifyError(int32_t errorCode,
Jianing Weicb0652e2014-03-12 18:29:36 -07002274 const CaptureResultExtras& resultExtras) {
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08002275 (void) errorCode;
2276 (void) resultExtras;
Ranjith Kagathi Ananda3e600892015-10-08 16:00:33 -07002277 if (mRemoteCallback != NULL) {
2278 mRemoteCallback->notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_RELEASED, 0);
2279 } else {
2280 ALOGE("mRemoteCallback is NULL!!");
2281 }
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002282}
2283
Igor Murashkin036bc3e2012-10-08 15:09:46 -07002284// NOTE: function is idempotent
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002285binder::Status CameraService::Client::disconnect() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07002286 ALOGV("Client::disconnect");
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002287 return BasicClient::disconnect();
Wu-cheng Lie09591e2010-10-14 20:17:44 +08002288}
2289
Ruben Brunk0bbf8b22015-04-30 14:35:42 -07002290bool CameraService::Client::canCastToApiClient(apiLevel level) const {
2291 return level == API_1;
2292}
2293
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08002294CameraService::Client::OpsCallback::OpsCallback(wp<BasicClient> client):
2295 mClient(client) {
2296}
2297
2298void CameraService::Client::OpsCallback::opChanged(int32_t op,
2299 const String16& packageName) {
2300 sp<BasicClient> client = mClient.promote();
2301 if (client != NULL) {
2302 client->opChanged(op, packageName);
2303 }
2304}
2305
Mathias Agopian65ab4712010-07-14 17:59:35 -07002306// ----------------------------------------------------------------------------
Ruben Brunkcc776712015-02-17 20:18:47 -08002307// CameraState
2308// ----------------------------------------------------------------------------
2309
2310CameraService::CameraState::CameraState(const String8& id, int cost,
2311 const std::set<String8>& conflicting) : mId(id),
2312 mStatus(ICameraServiceListener::STATUS_PRESENT), mCost(cost), mConflicting(conflicting) {}
2313
2314CameraService::CameraState::~CameraState() {}
2315
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002316int32_t CameraService::CameraState::getStatus() const {
Ruben Brunkcc776712015-02-17 20:18:47 -08002317 Mutex::Autolock lock(mStatusLock);
2318 return mStatus;
2319}
2320
2321CameraParameters CameraService::CameraState::getShimParams() const {
2322 return mShimParams;
2323}
2324
2325void CameraService::CameraState::setShimParams(const CameraParameters& params) {
2326 mShimParams = params;
2327}
2328
2329int CameraService::CameraState::getCost() const {
2330 return mCost;
2331}
2332
2333std::set<String8> CameraService::CameraState::getConflicting() const {
2334 return mConflicting;
2335}
2336
2337String8 CameraService::CameraState::getId() const {
2338 return mId;
2339}
2340
2341// ----------------------------------------------------------------------------
Ruben Brunk99e69712015-05-26 17:25:07 -07002342// ClientEventListener
2343// ----------------------------------------------------------------------------
2344
2345void CameraService::ClientEventListener::onClientAdded(
2346 const resource_policy::ClientDescriptor<String8,
2347 sp<CameraService::BasicClient>>& descriptor) {
2348 auto basicClient = descriptor.getValue();
2349 if (basicClient.get() != nullptr) {
2350 BatteryNotifier& notifier(BatteryNotifier::getInstance());
2351 notifier.noteStartCamera(descriptor.getKey(),
2352 static_cast<int>(basicClient->getClientUid()));
2353 }
2354}
2355
2356void CameraService::ClientEventListener::onClientRemoved(
2357 const resource_policy::ClientDescriptor<String8,
2358 sp<CameraService::BasicClient>>& descriptor) {
2359 auto basicClient = descriptor.getValue();
2360 if (basicClient.get() != nullptr) {
2361 BatteryNotifier& notifier(BatteryNotifier::getInstance());
2362 notifier.noteStopCamera(descriptor.getKey(),
2363 static_cast<int>(basicClient->getClientUid()));
2364 }
2365}
2366
2367
2368// ----------------------------------------------------------------------------
Ruben Brunkcc776712015-02-17 20:18:47 -08002369// CameraClientManager
2370// ----------------------------------------------------------------------------
2371
Ruben Brunk99e69712015-05-26 17:25:07 -07002372CameraService::CameraClientManager::CameraClientManager() {
2373 setListener(std::make_shared<ClientEventListener>());
2374}
2375
Ruben Brunkcc776712015-02-17 20:18:47 -08002376CameraService::CameraClientManager::~CameraClientManager() {}
2377
2378sp<CameraService::BasicClient> CameraService::CameraClientManager::getCameraClient(
2379 const String8& id) const {
2380 auto descriptor = get(id);
2381 if (descriptor == nullptr) {
2382 return sp<BasicClient>{nullptr};
2383 }
2384 return descriptor->getValue();
2385}
2386
2387String8 CameraService::CameraClientManager::toString() const {
2388 auto all = getAll();
2389 String8 ret("[");
2390 bool hasAny = false;
2391 for (auto& i : all) {
2392 hasAny = true;
2393 String8 key = i->getKey();
2394 int32_t cost = i->getCost();
2395 int32_t pid = i->getOwnerId();
2396 int32_t priority = i->getPriority();
2397 auto conflicting = i->getConflicting();
2398 auto clientSp = i->getValue();
2399 String8 packageName;
Eino-Ville Talvala022f0cb2015-05-19 16:31:16 -07002400 userid_t clientUserId = 0;
Ruben Brunkcc776712015-02-17 20:18:47 -08002401 if (clientSp.get() != nullptr) {
2402 packageName = String8{clientSp->getPackageName()};
Ruben Brunk6267b532015-04-30 17:44:07 -07002403 uid_t clientUid = clientSp->getClientUid();
2404 clientUserId = multiuser_get_user_id(clientUid);
Ruben Brunkcc776712015-02-17 20:18:47 -08002405 }
2406 ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Priority: %"
2407 PRId32 ", ", key.string(), cost, pid, priority);
2408
Ruben Brunk6267b532015-04-30 17:44:07 -07002409 if (clientSp.get() != nullptr) {
2410 ret.appendFormat("User Id: %d, ", clientUserId);
2411 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002412 if (packageName.size() != 0) {
2413 ret.appendFormat("Client Package Name: %s", packageName.string());
2414 }
2415
2416 ret.append(", Conflicting Client Devices: {");
2417 for (auto& j : conflicting) {
2418 ret.appendFormat("%s, ", j.string());
2419 }
2420 ret.append("})");
2421 }
2422 if (hasAny) ret.append("\n");
2423 ret.append("]\n");
2424 return ret;
2425}
2426
2427CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
2428 const String8& key, const sp<BasicClient>& value, int32_t cost,
2429 const std::set<String8>& conflictingKeys, int32_t priority, int32_t ownerId) {
2430
2431 return std::make_shared<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>(
2432 key, value, cost, conflictingKeys, priority, ownerId);
2433}
2434
2435CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
2436 const sp<BasicClient>& value, const CameraService::DescriptorPtr& partial) {
2437 return makeClientDescriptor(partial->getKey(), value, partial->getCost(),
2438 partial->getConflicting(), partial->getPriority(), partial->getOwnerId());
2439}
2440
2441// ----------------------------------------------------------------------------
Mathias Agopian65ab4712010-07-14 17:59:35 -07002442
2443static const int kDumpLockRetries = 50;
2444static const int kDumpLockSleep = 60000;
2445
2446static bool tryLock(Mutex& mutex)
2447{
2448 bool locked = false;
2449 for (int i = 0; i < kDumpLockRetries; ++i) {
2450 if (mutex.tryLock() == NO_ERROR) {
2451 locked = true;
2452 break;
2453 }
2454 usleep(kDumpLockSleep);
2455 }
2456 return locked;
2457}
2458
2459status_t CameraService::dump(int fd, const Vector<String16>& args) {
Eino-Ville Talvalaa84bbe62015-09-08 17:59:17 -07002460 ATRACE_CALL();
2461
Ruben Brunka8ca9152015-04-07 14:23:40 -07002462 String8 result("Dump of the Camera Service:\n");
Mathias Agopian65ab4712010-07-14 17:59:35 -07002463 if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
dcashmanfefa6142015-09-09 13:43:01 -07002464 result = result.format("Permission Denial: "
Mathias Agopian65ab4712010-07-14 17:59:35 -07002465 "can't dump CameraService from pid=%d, uid=%d\n",
2466 getCallingPid(),
2467 getCallingUid());
Mathias Agopian65ab4712010-07-14 17:59:35 -07002468 write(fd, result.string(), result.size());
2469 } else {
2470 bool locked = tryLock(mServiceLock);
2471 // failed to lock - CameraService is probably deadlocked
2472 if (!locked) {
Eino-Ville Talvala611f6192012-05-31 12:28:23 -07002473 result.append("CameraService may be deadlocked\n");
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002474 write(fd, result.string(), result.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07002475 }
2476
2477 bool hasClient = false;
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002478 if (!mModule) {
2479 result = String8::format("No camera module available!\n");
2480 write(fd, result.string(), result.size());
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07002481
2482 // Dump event log for error information
2483 dumpEventLog(fd);
2484
Kalle Lampila6ec3a152013-04-30 15:27:19 +03002485 if (locked) mServiceLock.unlock();
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002486 return NO_ERROR;
2487 }
2488
Chien-Yu Chen676b21b2015-02-24 10:28:19 -08002489 result = String8::format("Camera module HAL API version: 0x%x\n", mModule->getHalApiVersion());
2490 result.appendFormat("Camera module API version: 0x%x\n", mModule->getModuleApiVersion());
2491 result.appendFormat("Camera module name: %s\n", mModule->getModuleName());
2492 result.appendFormat("Camera module author: %s\n", mModule->getModuleAuthor());
Ruben Brunkcc776712015-02-17 20:18:47 -08002493 result.appendFormat("Number of camera devices: %d\n", mNumberOfCameras);
Eino-Ville Talvala49c97052016-01-12 14:29:40 -08002494 result.appendFormat("Number of normal camera devices: %d\n", mNumberOfNormalCameras);
Ruben Brunkcc776712015-02-17 20:18:47 -08002495 String8 activeClientString = mActiveClientManager.toString();
2496 result.appendFormat("Active Camera Clients:\n%s", activeClientString.string());
Ruben Brunk6267b532015-04-30 17:44:07 -07002497 result.appendFormat("Allowed users:\n%s\n", toString(mAllowedUsers).string());
Ruben Brunkcc776712015-02-17 20:18:47 -08002498
Ruben Brunkf81648e2014-04-17 16:14:57 -07002499 sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
2500 if (desc == NULL) {
2501 result.appendFormat("Vendor tags left unimplemented.\n");
2502 } else {
2503 result.appendFormat("Vendor tag definitions:\n");
2504 }
2505
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002506 write(fd, result.string(), result.size());
Ruben Brunkf81648e2014-04-17 16:14:57 -07002507
2508 if (desc != NULL) {
2509 desc->dump(fd, /*verbosity*/2, /*indentation*/4);
2510 }
2511
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07002512 dumpEventLog(fd);
Ruben Brunkcc776712015-02-17 20:18:47 -08002513
2514 bool stateLocked = tryLock(mCameraStatesLock);
2515 if (!stateLocked) {
2516 result = String8::format("CameraStates in use, may be deadlocked\n");
2517 write(fd, result.string(), result.size());
2518 }
2519
2520 for (auto& state : mCameraStates) {
2521 String8 cameraId = state.first;
2522 result = String8::format("Camera %s information:\n", cameraId.string());
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002523 camera_info info;
2524
Ruben Brunkcc776712015-02-17 20:18:47 -08002525 // TODO: Change getCameraInfo + HAL to use String cameraIds
2526 status_t rc = mModule->getCameraInfo(cameraIdToInt(cameraId), &info);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002527 if (rc != OK) {
2528 result.appendFormat(" Error reading static information!\n");
2529 write(fd, result.string(), result.size());
2530 } else {
2531 result.appendFormat(" Facing: %s\n",
2532 info.facing == CAMERA_FACING_BACK ? "BACK" : "FRONT");
2533 result.appendFormat(" Orientation: %d\n", info.orientation);
2534 int deviceVersion;
Chien-Yu Chen676b21b2015-02-24 10:28:19 -08002535 if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_0) {
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002536 deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
2537 } else {
2538 deviceVersion = info.device_version;
2539 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002540
2541 auto conflicting = state.second->getConflicting();
2542 result.appendFormat(" Resource Cost: %d\n", state.second->getCost());
2543 result.appendFormat(" Conflicting Devices:");
2544 for (auto& id : conflicting) {
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08002545 result.appendFormat(" %s", id.string());
Ruben Brunkcc776712015-02-17 20:18:47 -08002546 }
2547 if (conflicting.size() == 0) {
2548 result.appendFormat(" NONE");
2549 }
2550 result.appendFormat("\n");
2551
2552 result.appendFormat(" Device version: %#x\n", deviceVersion);
Eino-Ville Talvalad309fb92015-11-25 12:12:45 -08002553 if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_0) {
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002554 result.appendFormat(" Device static metadata:\n");
2555 write(fd, result.string(), result.size());
Eino-Ville Talvala428b77a2012-07-30 09:55:30 -07002556 dump_indented_camera_metadata(info.static_camera_characteristics,
Ruben Brunkf81648e2014-04-17 16:14:57 -07002557 fd, /*verbosity*/2, /*indentation*/4);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002558 } else {
2559 write(fd, result.string(), result.size());
2560 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002561
2562 CameraParameters p = state.second->getShimParams();
2563 if (!p.isEmpty()) {
2564 result = String8::format(" Camera1 API shim is using parameters:\n ");
2565 write(fd, result.string(), result.size());
2566 p.dump(fd, args);
2567 }
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002568 }
2569
Ruben Brunkcc776712015-02-17 20:18:47 -08002570 auto clientDescriptor = mActiveClientManager.get(cameraId);
2571 if (clientDescriptor == nullptr) {
2572 result = String8::format(" Device %s is closed, no client instance\n",
2573 cameraId.string());
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002574 write(fd, result.string(), result.size());
2575 continue;
2576 }
Mathias Agopian65ab4712010-07-14 17:59:35 -07002577 hasClient = true;
Ruben Brunkcc776712015-02-17 20:18:47 -08002578 result = String8::format(" Device %s is open. Client instance dump:\n\n",
2579 cameraId.string());
2580 result.appendFormat("Client priority level: %d\n", clientDescriptor->getPriority());
2581 result.appendFormat("Client PID: %d\n", clientDescriptor->getOwnerId());
2582
2583 auto client = clientDescriptor->getValue();
2584 result.appendFormat("Client package: %s\n",
2585 String8(client->getPackageName()).string());
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002586 write(fd, result.string(), result.size());
Ruben Brunkcc776712015-02-17 20:18:47 -08002587
Eino-Ville Talvalac4003962016-01-13 10:07:04 -08002588 client->dumpClient(fd, args);
Mathias Agopian65ab4712010-07-14 17:59:35 -07002589 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002590
2591 if (stateLocked) mCameraStatesLock.unlock();
2592
Mathias Agopian65ab4712010-07-14 17:59:35 -07002593 if (!hasClient) {
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002594 result = String8::format("\nNo active camera clients yet.\n");
2595 write(fd, result.string(), result.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07002596 }
2597
2598 if (locked) mServiceLock.unlock();
2599
Igor Murashkinff3e31d2013-10-23 16:40:06 -07002600 // Dump camera traces if there were any
2601 write(fd, "\n", 1);
2602 camera3::CameraTraces::dump(fd, args);
2603
Mathias Agopian65ab4712010-07-14 17:59:35 -07002604 // change logging level
2605 int n = args.size();
2606 for (int i = 0; i + 1 < n; i++) {
Eino-Ville Talvala611f6192012-05-31 12:28:23 -07002607 String16 verboseOption("-v");
2608 if (args[i] == verboseOption) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07002609 String8 levelStr(args[i+1]);
2610 int level = atoi(levelStr.string());
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002611 result = String8::format("\nSetting log level to %d.\n", level);
Mathias Agopian65ab4712010-07-14 17:59:35 -07002612 setLogLevel(level);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07002613 write(fd, result.string(), result.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07002614 }
2615 }
2616 }
2617 return NO_ERROR;
2618}
2619
Eino-Ville Talvala1527f072015-04-07 15:55:31 -07002620void CameraService::dumpEventLog(int fd) {
2621 String8 result = String8("\nPrior client events (most recent at top):\n");
2622
2623 Mutex::Autolock l(mLogLock);
2624 for (const auto& msg : mEventLog) {
2625 result.appendFormat(" %s\n", msg.string());
2626 }
2627
2628 if (mEventLog.size() == DEFAULT_EVENT_LOG_LENGTH) {
2629 result.append(" ...\n");
2630 } else if (mEventLog.size() == 0) {
2631 result.append(" [no events yet]\n");
2632 }
2633 result.append("\n");
2634
2635 write(fd, result.string(), result.size());
2636}
2637
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002638void CameraService::handleTorchClientBinderDied(const wp<IBinder> &who) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002639 Mutex::Autolock al(mTorchClientMapMutex);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002640 for (size_t i = 0; i < mTorchClientMap.size(); i++) {
2641 if (mTorchClientMap[i] == who) {
2642 // turn off the torch mode that was turned on by dead client
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002643 String8 cameraId = mTorchClientMap.keyAt(i);
2644 status_t res = mFlashlight->setTorchMode(cameraId, false);
2645 if (res) {
2646 ALOGE("%s: torch client died but couldn't turn off torch: "
2647 "%s (%d)", __FUNCTION__, strerror(-res), res);
2648 return;
2649 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002650 mTorchClientMap.removeItemsAt(i);
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002651 break;
2652 }
2653 }
2654}
2655
Ruben Brunkcc776712015-02-17 20:18:47 -08002656/*virtual*/void CameraService::binderDied(const wp<IBinder> &who) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07002657
Igor Murashkin294d0ec2012-10-05 10:44:57 -07002658 /**
Ruben Brunka8ca9152015-04-07 14:23:40 -07002659 * While tempting to promote the wp<IBinder> into a sp, it's actually not supported by the
2660 * binder driver
Igor Murashkin294d0ec2012-10-05 10:44:57 -07002661 */
2662
Ruben Brunka8ca9152015-04-07 14:23:40 -07002663 logClientDied(getCallingPid(), String8("Binder died unexpectedly"));
2664
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002665 // check torch client
2666 handleTorchClientBinderDied(who);
2667
2668 // check camera device client
Ruben Brunkcc776712015-02-17 20:18:47 -08002669 if(!evictClientIdByRemote(who)) {
2670 ALOGV("%s: Java client's binder death already cleaned up (normal case)", __FUNCTION__);
Igor Murashkinecf17e82012-10-02 16:05:11 -07002671 return;
2672 }
2673
Ruben Brunkcc776712015-02-17 20:18:47 -08002674 ALOGE("%s: Java client's binder died, removing it from the list of active clients",
2675 __FUNCTION__);
Igor Murashkinecf17e82012-10-02 16:05:11 -07002676}
2677
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002678void CameraService::updateStatus(int32_t status, const String8& cameraId) {
Ruben Brunkcc776712015-02-17 20:18:47 -08002679 updateStatus(status, cameraId, {});
Igor Murashkinbfc99152013-02-27 12:55:20 -08002680}
2681
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002682void CameraService::updateStatus(int32_t status, const String8& cameraId,
2683 std::initializer_list<int32_t> rejectSourceStates) {
Ruben Brunkcc776712015-02-17 20:18:47 -08002684 // Do not lock mServiceLock here or can get into a deadlock from
2685 // connect() -> disconnect -> updateStatus
2686
2687 auto state = getCameraState(cameraId);
2688
2689 if (state == nullptr) {
2690 ALOGW("%s: Could not update the status for %s, no such device exists", __FUNCTION__,
2691 cameraId.string());
2692 return;
Igor Murashkincba2c162013-03-20 15:56:31 -07002693 }
2694
Ruben Brunkcc776712015-02-17 20:18:47 -08002695 // Update the status for this camera state, then send the onStatusChangedCallbacks to each
2696 // of the listeners with both the mStatusStatus and mStatusListenerLock held
2697 state->updateStatus(status, cameraId, rejectSourceStates, [this]
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002698 (const String8& cameraId, int32_t status) {
Ruben Brunkcc776712015-02-17 20:18:47 -08002699
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07002700 if (status != ICameraServiceListener::STATUS_ENUMERATING) {
2701 // Update torch status if it has a flash unit.
2702 Mutex::Autolock al(mTorchStatusMutex);
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002703 int32_t torchStatus;
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07002704 if (getTorchStatusLocked(cameraId, &torchStatus) !=
2705 NAME_NOT_FOUND) {
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002706 int32_t newTorchStatus =
Chien-Yu Chenf6463fc2015-04-07 15:11:31 -07002707 status == ICameraServiceListener::STATUS_PRESENT ?
2708 ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF :
2709 ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
2710 if (torchStatus != newTorchStatus) {
2711 onTorchStatusChangedLocked(cameraId, newTorchStatus);
2712 }
2713 }
Ruben Brunkcc776712015-02-17 20:18:47 -08002714 }
2715
2716 Mutex::Autolock lock(mStatusListenerLock);
2717
2718 for (auto& listener : mListenerList) {
2719 // TODO: Refactor status listeners to use strings for Camera IDs and remove this.
2720 int id = cameraIdToInt(cameraId);
2721 if (id != -1) listener->onStatusChanged(status, id);
2722 }
2723 });
Igor Murashkincba2c162013-03-20 15:56:31 -07002724}
2725
Eino-Ville Talvala412fe562015-08-20 17:08:32 -07002726void CameraService::updateProxyDeviceState(ICameraServiceProxy::CameraState newState,
2727 const String8& cameraId) {
2728 sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
2729 if (proxyBinder == nullptr) return;
2730 String16 id(cameraId);
2731 proxyBinder->notifyCameraState(id, newState);
2732}
2733
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002734status_t CameraService::getTorchStatusLocked(
2735 const String8& cameraId,
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002736 int32_t *status) const {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002737 if (!status) {
2738 return BAD_VALUE;
2739 }
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002740 ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
2741 if (index == NAME_NOT_FOUND) {
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002742 // invalid camera ID or the camera doesn't have a flash unit
2743 return NAME_NOT_FOUND;
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002744 }
2745
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002746 *status = mTorchStatusMap.valueAt(index);
2747 return OK;
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002748}
2749
Chien-Yu Chen88da5262015-02-17 13:56:46 -08002750status_t CameraService::setTorchStatusLocked(const String8& cameraId,
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002751 int32_t status) {
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002752 ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
2753 if (index == NAME_NOT_FOUND) {
2754 return BAD_VALUE;
2755 }
Eino-Ville Talvalad56db1d2015-12-17 16:50:35 -08002756 int32_t& item =
Chien-Yu Chen3068d732015-02-09 13:29:57 -08002757 mTorchStatusMap.editValueAt(index);
2758 item = status;
2759
2760 return OK;
2761}
2762
Mathias Agopian65ab4712010-07-14 17:59:35 -07002763}; // namespace android