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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"
Iliyan Malchev8951a972011-04-14 16:55:59 -070018//#define LOG_NDEBUG 0
Mathias Agopian65ab4712010-07-14 17:59:35 -070019
20#include <stdio.h>
Ruben Brunkd1176ef2014-02-21 10:51:38 -080021#include <string.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070022#include <sys/types.h>
23#include <pthread.h>
24
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -080025#include <binder/AppOpsManager.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070026#include <binder/IPCThreadState.h>
27#include <binder/IServiceManager.h>
28#include <binder/MemoryBase.h>
29#include <binder/MemoryHeapBase.h>
30#include <cutils/atomic.h>
Nipun Kwatrab5ca4612010-09-11 19:31:10 -070031#include <cutils/properties.h>
Amith Yamasani228711d2015-02-13 13:25:39 -080032#include <cutils/multiuser.h>
Mathias Agopiandf712ea2012-02-25 18:48:35 -080033#include <gui/Surface.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070034#include <hardware/hardware.h>
35#include <media/AudioSystem.h>
Andreas Huber1b86fe02014-01-29 11:13:26 -080036#include <media/IMediaHTTPService.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070037#include <media/mediaplayer.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070038#include <utils/Errors.h>
39#include <utils/Log.h>
40#include <utils/String16.h>
Ruben Brunkd1176ef2014-02-21 10:51:38 -080041#include <utils/Trace.h>
42#include <system/camera_vendor_tags.h>
Ruben Brunkb2119af2014-05-09 19:57:56 -070043#include <system/camera_metadata.h>
44#include <system/camera.h>
Mathias Agopian65ab4712010-07-14 17:59:35 -070045
46#include "CameraService.h"
Eino-Ville Talvala7b82efe2013-07-25 17:12:35 -070047#include "api1/CameraClient.h"
48#include "api1/Camera2Client.h"
49#include "api_pro/ProCamera2Client.h"
50#include "api2/CameraDeviceClient.h"
Igor Murashkinff3e31d2013-10-23 16:40:06 -070051#include "utils/CameraTraces.h"
Igor Murashkin98e24722013-06-19 19:51:04 -070052#include "CameraDeviceFactory.h"
Mathias Agopian65ab4712010-07-14 17:59:35 -070053
54namespace android {
55
56// ----------------------------------------------------------------------------
57// Logging support -- this is for debugging only
58// Use "adb shell dumpsys media.camera -v 1" to change it.
Eino-Ville Talvala5e08d602012-05-16 14:59:25 -070059volatile int32_t gLogLevel = 0;
Mathias Agopian65ab4712010-07-14 17:59:35 -070060
Steve Blockb8a80522011-12-20 16:23:08 +000061#define LOG1(...) ALOGD_IF(gLogLevel >= 1, __VA_ARGS__);
62#define LOG2(...) ALOGD_IF(gLogLevel >= 2, __VA_ARGS__);
Mathias Agopian65ab4712010-07-14 17:59:35 -070063
64static void setLogLevel(int level) {
65 android_atomic_write(level, &gLogLevel);
66}
67
68// ----------------------------------------------------------------------------
69
70static int getCallingPid() {
71 return IPCThreadState::self()->getCallingPid();
72}
73
74static int getCallingUid() {
75 return IPCThreadState::self()->getCallingUid();
76}
77
Igor Murashkincba2c162013-03-20 15:56:31 -070078extern "C" {
79static void camera_device_status_change(
80 const struct camera_module_callbacks* callbacks,
81 int camera_id,
82 int new_status) {
83 sp<CameraService> cs = const_cast<CameraService*>(
84 static_cast<const CameraService*>(callbacks));
85
86 cs->onDeviceStatusChanged(
87 camera_id,
88 new_status);
89}
90} // extern "C"
91
Mathias Agopian65ab4712010-07-14 17:59:35 -070092// ----------------------------------------------------------------------------
93
94// This is ugly and only safe if we never re-create the CameraService, but
95// should be ok for now.
96static CameraService *gCameraService;
97
98CameraService::CameraService()
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -080099 :mSoundRef(0), mModule(0)
Mathias Agopian65ab4712010-07-14 17:59:35 -0700100{
Steve Blockdf64d152012-01-04 20:05:49 +0000101 ALOGI("CameraService started (pid=%d)", getpid());
Mathias Agopian65ab4712010-07-14 17:59:35 -0700102 gCameraService = this;
Igor Murashkinbfc99152013-02-27 12:55:20 -0800103
104 for (size_t i = 0; i < MAX_CAMERAS; ++i) {
Igor Murashkincba2c162013-03-20 15:56:31 -0700105 mStatusList[i] = ICameraServiceListener::STATUS_PRESENT;
Igor Murashkinbfc99152013-02-27 12:55:20 -0800106 }
Igor Murashkincba2c162013-03-20 15:56:31 -0700107
108 this->camera_device_status_change = android::camera_device_status_change;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700109}
110
Iliyan Malchev8951a972011-04-14 16:55:59 -0700111void CameraService::onFirstRef()
112{
Igor Murashkin634a5152013-02-20 17:15:11 -0800113 LOG1("CameraService::onFirstRef");
114
Iliyan Malchev8951a972011-04-14 16:55:59 -0700115 BnCameraService::onFirstRef();
116
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800117 camera_module_t *rawModule;
Iliyan Malchev8951a972011-04-14 16:55:59 -0700118 if (hw_get_module(CAMERA_HARDWARE_MODULE_ID,
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800119 (const hw_module_t **)&rawModule) < 0) {
Steve Block29357bc2012-01-06 19:20:56 +0000120 ALOGE("Could not load camera HAL module");
Iliyan Malchev8951a972011-04-14 16:55:59 -0700121 mNumberOfCameras = 0;
122 }
123 else {
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800124 mModule = new CameraModule(rawModule);
125 const hw_module_t *common = mModule->getRawModule();
126 ALOGI("Loaded \"%s\" camera module", common->name);
127 mNumberOfCameras = mModule->getNumberOfCameras();
Iliyan Malchev8951a972011-04-14 16:55:59 -0700128 if (mNumberOfCameras > MAX_CAMERAS) {
Steve Block29357bc2012-01-06 19:20:56 +0000129 ALOGE("Number of cameras(%d) > MAX_CAMERAS(%d).",
Iliyan Malchev8951a972011-04-14 16:55:59 -0700130 mNumberOfCameras, MAX_CAMERAS);
131 mNumberOfCameras = MAX_CAMERAS;
132 }
133 for (int i = 0; i < mNumberOfCameras; i++) {
134 setCameraFree(i);
135 }
Igor Murashkincba2c162013-03-20 15:56:31 -0700136
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800137 if (common->module_api_version >= CAMERA_MODULE_API_VERSION_2_1) {
138 mModule->setCallbacks(this);
Igor Murashkincba2c162013-03-20 15:56:31 -0700139 }
Igor Murashkin98e24722013-06-19 19:51:04 -0700140
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800141 VendorTagDescriptor::clearGlobalVendorTagDescriptor();
142
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800143 if (common->module_api_version >= CAMERA_MODULE_API_VERSION_2_2) {
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800144 setUpVendorTags();
145 }
146
Igor Murashkin98e24722013-06-19 19:51:04 -0700147 CameraDeviceFactory::registerService(this);
Iliyan Malchev8951a972011-04-14 16:55:59 -0700148 }
149}
150
Mathias Agopian65ab4712010-07-14 17:59:35 -0700151CameraService::~CameraService() {
152 for (int i = 0; i < mNumberOfCameras; i++) {
153 if (mBusy[i]) {
Steve Block29357bc2012-01-06 19:20:56 +0000154 ALOGE("camera %d is still in use in destructor!", i);
Mathias Agopian65ab4712010-07-14 17:59:35 -0700155 }
156 }
157
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800158 if (mModule) {
159 delete mModule;
160 }
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800161 VendorTagDescriptor::clearGlobalVendorTagDescriptor();
Mathias Agopian65ab4712010-07-14 17:59:35 -0700162 gCameraService = NULL;
163}
164
Igor Murashkincba2c162013-03-20 15:56:31 -0700165void CameraService::onDeviceStatusChanged(int cameraId,
166 int newStatus)
167{
168 ALOGI("%s: Status changed for cameraId=%d, newStatus=%d", __FUNCTION__,
169 cameraId, newStatus);
170
171 if (cameraId < 0 || cameraId >= MAX_CAMERAS) {
172 ALOGE("%s: Bad camera ID %d", __FUNCTION__, cameraId);
173 return;
174 }
175
176 if ((int)getStatus(cameraId) == newStatus) {
177 ALOGE("%s: State transition to the same status 0x%x not allowed",
178 __FUNCTION__, (uint32_t)newStatus);
179 return;
180 }
181
182 /* don't do this in updateStatus
183 since it is also called from connect and we could get into a deadlock */
184 if (newStatus == CAMERA_DEVICE_STATUS_NOT_PRESENT) {
185 Vector<sp<BasicClient> > clientsToDisconnect;
186 {
187 Mutex::Autolock al(mServiceLock);
188
Ruben Brunkb2119af2014-05-09 19:57:56 -0700189 /* Remove cached parameters from shim cache */
190 mShimParams.removeItem(cameraId);
191
Igor Murashkincba2c162013-03-20 15:56:31 -0700192 /* Find all clients that we need to disconnect */
Igor Murashkine7ee7632013-06-11 18:10:18 -0700193 sp<BasicClient> client = mClient[cameraId].promote();
Igor Murashkincba2c162013-03-20 15:56:31 -0700194 if (client.get() != NULL) {
195 clientsToDisconnect.push_back(client);
196 }
197
198 int i = cameraId;
199 for (size_t j = 0; j < mProClientList[i].size(); ++j) {
200 sp<ProClient> cl = mProClientList[i][j].promote();
201 if (cl != NULL) {
202 clientsToDisconnect.push_back(cl);
203 }
204 }
205 }
206
207 /* now disconnect them. don't hold the lock
208 or we can get into a deadlock */
209
210 for (size_t i = 0; i < clientsToDisconnect.size(); ++i) {
211 sp<BasicClient> client = clientsToDisconnect[i];
212
213 client->disconnect();
214 /**
215 * The remote app will no longer be able to call methods on the
216 * client since the client PID will be reset to 0
217 */
218 }
219
Colin Crosse5729fa2014-03-21 15:04:25 -0700220 ALOGV("%s: After unplug, disconnected %zu clients",
Igor Murashkincba2c162013-03-20 15:56:31 -0700221 __FUNCTION__, clientsToDisconnect.size());
222 }
223
224 updateStatus(
225 static_cast<ICameraServiceListener::Status>(newStatus), cameraId);
226
227}
228
Mathias Agopian65ab4712010-07-14 17:59:35 -0700229int32_t CameraService::getNumberOfCameras() {
230 return mNumberOfCameras;
231}
232
233status_t CameraService::getCameraInfo(int cameraId,
234 struct CameraInfo* cameraInfo) {
Iliyan Malchev8951a972011-04-14 16:55:59 -0700235 if (!mModule) {
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700236 return -ENODEV;
Iliyan Malchev8951a972011-04-14 16:55:59 -0700237 }
238
Mathias Agopian65ab4712010-07-14 17:59:35 -0700239 if (cameraId < 0 || cameraId >= mNumberOfCameras) {
240 return BAD_VALUE;
241 }
242
Iliyan Malchev8951a972011-04-14 16:55:59 -0700243 struct camera_info info;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700244 status_t rc = filterGetInfoErrorCode(
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800245 mModule->getCameraInfo(cameraId, &info));
Iliyan Malchev8951a972011-04-14 16:55:59 -0700246 cameraInfo->facing = info.facing;
247 cameraInfo->orientation = info.orientation;
248 return rc;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700249}
250
Ruben Brunkb2119af2014-05-09 19:57:56 -0700251
252status_t CameraService::generateShimMetadata(int cameraId, /*out*/CameraMetadata* cameraInfo) {
253 status_t ret = OK;
254 struct CameraInfo info;
255 if ((ret = getCameraInfo(cameraId, &info)) != OK) {
256 return ret;
257 }
258
259 CameraMetadata shimInfo;
260 int32_t orientation = static_cast<int32_t>(info.orientation);
261 if ((ret = shimInfo.update(ANDROID_SENSOR_ORIENTATION, &orientation, 1)) != OK) {
262 return ret;
263 }
264
265 uint8_t facing = (info.facing == CAMERA_FACING_FRONT) ?
266 ANDROID_LENS_FACING_FRONT : ANDROID_LENS_FACING_BACK;
267 if ((ret = shimInfo.update(ANDROID_LENS_FACING, &facing, 1)) != OK) {
268 return ret;
269 }
270
Igor Murashkin65d14b92014-06-17 12:03:20 -0700271 CameraParameters shimParams;
272 if ((ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)) != OK) {
273 // Error logged by callee
274 return ret;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700275 }
276
277 Vector<Size> sizes;
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700278 Vector<Size> jpegSizes;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700279 Vector<int32_t> formats;
280 const char* supportedPreviewFormats;
Igor Murashkin65d14b92014-06-17 12:03:20 -0700281 {
282 shimParams.getSupportedPreviewSizes(/*out*/sizes);
283 shimParams.getSupportedPreviewFormats(/*out*/formats);
284 shimParams.getSupportedPictureSizes(/*out*/jpegSizes);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700285 }
286
287 // Always include IMPLEMENTATION_DEFINED
288 formats.add(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED);
289
290 const size_t INTS_PER_CONFIG = 4;
291
292 // Build available stream configurations metadata
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700293 size_t streamConfigSize = (sizes.size() * formats.size() + jpegSizes.size()) * INTS_PER_CONFIG;
294
295 Vector<int32_t> streamConfigs;
296 streamConfigs.setCapacity(streamConfigSize);
297
Ruben Brunkb2119af2014-05-09 19:57:56 -0700298 for (size_t i = 0; i < formats.size(); ++i) {
299 for (size_t j = 0; j < sizes.size(); ++j) {
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700300 streamConfigs.add(formats[i]);
301 streamConfigs.add(sizes[j].width);
302 streamConfigs.add(sizes[j].height);
303 streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700304 }
305 }
306
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700307 for (size_t i = 0; i < jpegSizes.size(); ++i) {
308 streamConfigs.add(HAL_PIXEL_FORMAT_BLOB);
309 streamConfigs.add(jpegSizes[i].width);
310 streamConfigs.add(jpegSizes[i].height);
311 streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
312 }
313
Ruben Brunkb2119af2014-05-09 19:57:56 -0700314 if ((ret = shimInfo.update(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
Ruben Brunk152dbcf2014-06-12 19:11:45 -0700315 streamConfigs.array(), streamConfigSize)) != OK) {
Ruben Brunkb2119af2014-05-09 19:57:56 -0700316 return ret;
317 }
318
319 int64_t fakeMinFrames[0];
320 // TODO: Fixme, don't fake min frame durations.
321 if ((ret = shimInfo.update(ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS,
322 fakeMinFrames, 0)) != OK) {
323 return ret;
324 }
325
326 int64_t fakeStalls[0];
327 // TODO: Fixme, don't fake stall durations.
328 if ((ret = shimInfo.update(ANDROID_SCALER_AVAILABLE_STALL_DURATIONS,
329 fakeStalls, 0)) != OK) {
330 return ret;
331 }
332
333 *cameraInfo = shimInfo;
334 return OK;
335}
336
Zhijun He2b59be82013-09-25 10:14:30 -0700337status_t CameraService::getCameraCharacteristics(int cameraId,
338 CameraMetadata* cameraInfo) {
339 if (!cameraInfo) {
340 ALOGE("%s: cameraInfo is NULL", __FUNCTION__);
341 return BAD_VALUE;
342 }
343
344 if (!mModule) {
345 ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
346 return -ENODEV;
347 }
348
Zhijun He2b59be82013-09-25 10:14:30 -0700349 if (cameraId < 0 || cameraId >= mNumberOfCameras) {
350 ALOGE("%s: Invalid camera id: %d", __FUNCTION__, cameraId);
351 return BAD_VALUE;
352 }
353
354 int facing;
Ruben Brunkb2119af2014-05-09 19:57:56 -0700355 status_t ret = OK;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800356 if (mModule->getRawModule()->module_api_version < CAMERA_MODULE_API_VERSION_2_0 ||
Ruben Brunkb2119af2014-05-09 19:57:56 -0700357 getDeviceVersion(cameraId, &facing) <= CAMERA_DEVICE_API_VERSION_2_1 ) {
358 /**
359 * Backwards compatibility mode for old HALs:
360 * - Convert CameraInfo into static CameraMetadata properties.
361 * - Retrieve cached CameraParameters for this camera. If none exist,
362 * attempt to open CameraClient and retrieve the CameraParameters.
363 * - Convert cached CameraParameters into static CameraMetadata
364 * properties.
365 */
366 ALOGI("%s: Switching to HAL1 shim implementation...", __FUNCTION__);
Zhijun He2b59be82013-09-25 10:14:30 -0700367
Ruben Brunkb2119af2014-05-09 19:57:56 -0700368 if ((ret = generateShimMetadata(cameraId, cameraInfo)) != OK) {
369 return ret;
370 }
Zhijun Hef05e50e2013-10-01 11:05:33 -0700371
Ruben Brunkb2119af2014-05-09 19:57:56 -0700372 } else {
373 /**
374 * Normal HAL 2.1+ codepath.
375 */
376 struct camera_info info;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800377 ret = filterGetInfoErrorCode(mModule->getCameraInfo(cameraId, &info));
Ruben Brunkb2119af2014-05-09 19:57:56 -0700378 *cameraInfo = info.static_camera_characteristics;
379 }
Zhijun He2b59be82013-09-25 10:14:30 -0700380
381 return ret;
382}
383
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800384status_t CameraService::getCameraVendorTagDescriptor(/*out*/sp<VendorTagDescriptor>& desc) {
385 if (!mModule) {
386 ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
387 return -ENODEV;
388 }
389
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800390 desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
391 return OK;
392}
393
Igor Murashkin634a5152013-02-20 17:15:11 -0800394int CameraService::getDeviceVersion(int cameraId, int* facing) {
395 struct camera_info info;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800396 if (mModule->getCameraInfo(cameraId, &info) != OK) {
Igor Murashkin634a5152013-02-20 17:15:11 -0800397 return -1;
398 }
399
400 int deviceVersion;
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800401 if (mModule->getRawModule()->module_api_version >= CAMERA_MODULE_API_VERSION_2_0) {
Igor Murashkin634a5152013-02-20 17:15:11 -0800402 deviceVersion = info.device_version;
403 } else {
404 deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
405 }
406
407 if (facing) {
408 *facing = info.facing;
409 }
410
411 return deviceVersion;
412}
413
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700414status_t CameraService::filterOpenErrorCode(status_t err) {
415 switch(err) {
416 case NO_ERROR:
417 case -EBUSY:
418 case -EINVAL:
419 case -EUSERS:
420 return err;
421 default:
422 break;
Igor Murashkinbfc99152013-02-27 12:55:20 -0800423 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700424 return -ENODEV;
425}
Igor Murashkinbfc99152013-02-27 12:55:20 -0800426
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -0700427status_t CameraService::filterGetInfoErrorCode(status_t err) {
428 switch(err) {
429 case NO_ERROR:
430 case -EINVAL:
431 return err;
432 default:
433 break;
434 }
435 return -ENODEV;
Igor Murashkinbfc99152013-02-27 12:55:20 -0800436}
437
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800438bool CameraService::setUpVendorTags() {
439 vendor_tag_ops_t vOps = vendor_tag_ops_t();
440
441 // Check if vendor operations have been implemented
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800442 if (!mModule->isVendorTagDefined()) {
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800443 ALOGI("%s: No vendor tags defined for this device.", __FUNCTION__);
444 return false;
445 }
446
447 ATRACE_BEGIN("camera3->get_metadata_vendor_tag_ops");
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800448 mModule->getVendorTagOps(&vOps);
Ruben Brunkd1176ef2014-02-21 10:51:38 -0800449 ATRACE_END();
450
451 // Ensure all vendor operations are present
452 if (vOps.get_tag_count == NULL || vOps.get_all_tags == NULL ||
453 vOps.get_section_name == NULL || vOps.get_tag_name == NULL ||
454 vOps.get_tag_type == NULL) {
455 ALOGE("%s: Vendor tag operations not fully defined. Ignoring definitions."
456 , __FUNCTION__);
457 return false;
458 }
459
460 // Read all vendor tag definitions into a descriptor
461 sp<VendorTagDescriptor> desc;
462 status_t res;
463 if ((res = VendorTagDescriptor::createDescriptorFromOps(&vOps, /*out*/desc))
464 != OK) {
465 ALOGE("%s: Could not generate descriptor from vendor tag operations,"
466 "received error %s (%d). Camera clients will not be able to use"
467 "vendor tags", __FUNCTION__, strerror(res), res);
468 return false;
469 }
470
471 // Set the global descriptor to use with camera metadata
472 VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
473 return true;
474}
475
Ruben Brunkb2119af2014-05-09 19:57:56 -0700476status_t CameraService::initializeShimMetadata(int cameraId) {
477 int pid = getCallingPid();
478 int uid = getCallingUid();
479 status_t ret = validateConnect(cameraId, uid);
480 if (ret != OK) {
Igor Murashkin65d14b92014-06-17 12:03:20 -0700481 // Error already logged by callee
Ruben Brunkb2119af2014-05-09 19:57:56 -0700482 return ret;
483 }
484
485 bool needsNewClient = false;
486 sp<Client> client;
487
488 String16 internalPackageName("media");
489 { // Scope for service lock
490 Mutex::Autolock lock(mServiceLock);
491 if (mClient[cameraId] != NULL) {
492 client = static_cast<Client*>(mClient[cameraId].promote().get());
493 }
494 if (client == NULL) {
495 needsNewClient = true;
Igor Murashkina858ea02014-08-19 14:53:08 -0700496 ret = connectHelperLocked(/*out*/client,
497 /*cameraClient*/NULL, // Empty binder callbacks
Ruben Brunkb2119af2014-05-09 19:57:56 -0700498 cameraId,
499 internalPackageName,
500 uid,
Igor Murashkina858ea02014-08-19 14:53:08 -0700501 pid);
Ruben Brunkb2119af2014-05-09 19:57:56 -0700502
503 if (ret != OK) {
Igor Murashkin65d14b92014-06-17 12:03:20 -0700504 // Error already logged by callee
Ruben Brunkb2119af2014-05-09 19:57:56 -0700505 return ret;
506 }
507 }
508
509 if (client == NULL) {
510 ALOGE("%s: Could not connect to client camera device.", __FUNCTION__);
511 return BAD_VALUE;
512 }
513
514 String8 rawParams = client->getParameters();
515 CameraParameters params(rawParams);
516 mShimParams.add(cameraId, params);
517 }
518
519 // Close client if one was opened solely for this call
520 if (needsNewClient) {
521 client->disconnect();
522 }
523 return OK;
524}
525
Igor Murashkin65d14b92014-06-17 12:03:20 -0700526status_t CameraService::getLegacyParametersLazy(int cameraId,
527 /*out*/
528 CameraParameters* parameters) {
529
530 ALOGV("%s: for cameraId: %d", __FUNCTION__, cameraId);
531
532 status_t ret = 0;
533
534 if (parameters == NULL) {
535 ALOGE("%s: parameters must not be null", __FUNCTION__);
536 return BAD_VALUE;
537 }
538
539 ssize_t index = -1;
540 { // Scope for service lock
541 Mutex::Autolock lock(mServiceLock);
542 index = mShimParams.indexOfKey(cameraId);
543 // Release service lock so initializeShimMetadata can be called correctly.
544
545 if (index >= 0) {
546 *parameters = mShimParams[index];
547 }
548 }
549
550 if (index < 0) {
551 int64_t token = IPCThreadState::self()->clearCallingIdentity();
552 ret = initializeShimMetadata(cameraId);
553 IPCThreadState::self()->restoreCallingIdentity(token);
554 if (ret != OK) {
555 // Error already logged by callee
556 return ret;
557 }
558
559 { // Scope for service lock
560 Mutex::Autolock lock(mServiceLock);
561 index = mShimParams.indexOfKey(cameraId);
562
563 LOG_ALWAYS_FATAL_IF(index < 0, "index should have been initialized");
564
565 *parameters = mShimParams[index];
566 }
567 }
568
569 return OK;
570}
571
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700572status_t CameraService::validateConnect(int cameraId,
Igor Murashkine6800ce2013-03-04 17:25:57 -0800573 /*inout*/
574 int& clientUid) const {
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800575
Mathias Agopian65ab4712010-07-14 17:59:35 -0700576 int callingPid = getCallingPid();
Tyler Luu5861a9a2011-10-06 00:00:03 -0500577
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800578 if (clientUid == USE_CALLING_UID) {
579 clientUid = getCallingUid();
580 } else {
581 // We only trust our own process to forward client UIDs
582 if (callingPid != getpid()) {
583 ALOGE("CameraService::connect X (pid %d) rejected (don't trust clientUid)",
584 callingPid);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700585 return PERMISSION_DENIED;
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800586 }
587 }
Mathias Agopian65ab4712010-07-14 17:59:35 -0700588
Iliyan Malchev8951a972011-04-14 16:55:59 -0700589 if (!mModule) {
Steve Block29357bc2012-01-06 19:20:56 +0000590 ALOGE("Camera HAL module not loaded");
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700591 return -ENODEV;
Iliyan Malchev8951a972011-04-14 16:55:59 -0700592 }
593
Mathias Agopian65ab4712010-07-14 17:59:35 -0700594 if (cameraId < 0 || cameraId >= mNumberOfCameras) {
Steve Block29357bc2012-01-06 19:20:56 +0000595 ALOGE("CameraService::connect X (pid %d) rejected (invalid cameraId %d).",
Mathias Agopian65ab4712010-07-14 17:59:35 -0700596 callingPid, cameraId);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700597 return -ENODEV;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700598 }
599
Wu-cheng Lia3355432011-05-20 14:54:25 +0800600 char value[PROPERTY_VALUE_MAX];
Amith Yamasani228711d2015-02-13 13:25:39 -0800601 char key[PROPERTY_KEY_MAX];
602 int clientUserId = multiuser_get_user_id(clientUid);
603 snprintf(key, PROPERTY_KEY_MAX, "sys.secpolicy.camera.off_%d", clientUserId);
604 property_get(key, value, "0");
Wu-cheng Lia3355432011-05-20 14:54:25 +0800605 if (strcmp(value, "1") == 0) {
606 // Camera is disabled by DevicePolicyManager.
Steve Blockdf64d152012-01-04 20:05:49 +0000607 ALOGI("Camera is disabled. connect X (pid %d) rejected", callingPid);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700608 return -EACCES;
Wu-cheng Lia3355432011-05-20 14:54:25 +0800609 }
610
Igor Murashkincba2c162013-03-20 15:56:31 -0700611 ICameraServiceListener::Status currentStatus = getStatus(cameraId);
612 if (currentStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
613 ALOGI("Camera is not plugged in,"
614 " connect X (pid %d) rejected", callingPid);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700615 return -ENODEV;
Igor Murashkincba2c162013-03-20 15:56:31 -0700616 } else if (currentStatus == ICameraServiceListener::STATUS_ENUMERATING) {
617 ALOGI("Camera is enumerating,"
618 " connect X (pid %d) rejected", callingPid);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700619 return -EBUSY;
Igor Murashkincba2c162013-03-20 15:56:31 -0700620 }
621 // Else don't check for STATUS_NOT_AVAILABLE.
622 // -- It's done implicitly in canConnectUnsafe /w the mBusy array
623
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700624 return OK;
Igor Murashkine6800ce2013-03-04 17:25:57 -0800625}
626
627bool CameraService::canConnectUnsafe(int cameraId,
628 const String16& clientPackageName,
629 const sp<IBinder>& remoteCallback,
Igor Murashkine7ee7632013-06-11 18:10:18 -0700630 sp<BasicClient> &client) {
Igor Murashkine6800ce2013-03-04 17:25:57 -0800631 String8 clientName8(clientPackageName);
632 int callingPid = getCallingPid();
633
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +0800634 if (mClient[cameraId] != 0) {
635 client = mClient[cameraId].promote();
636 if (client != 0) {
Igor Murashkine7ee7632013-06-11 18:10:18 -0700637 if (remoteCallback == client->getRemote()) {
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +0800638 LOG1("CameraService::connect X (pid %d) (the same client)",
639 callingPid);
Igor Murashkine6800ce2013-03-04 17:25:57 -0800640 return true;
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +0800641 } else {
Igor Murashkine6800ce2013-03-04 17:25:57 -0800642 // TODOSC: need to support 1 regular client,
643 // multiple shared clients here
644 ALOGW("CameraService::connect X (pid %d) rejected"
645 " (existing client).", callingPid);
646 return false;
Wu-cheng Li2fd24402012-02-23 19:01:00 -0800647 }
Wu-cheng Li2fd24402012-02-23 19:01:00 -0800648 }
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +0800649 mClient[cameraId].clear();
650 }
651
Igor Murashkin634a5152013-02-20 17:15:11 -0800652 /*
653 mBusy is set to false as the last step of the Client destructor,
654 after which it is guaranteed that the Client destructor has finished (
655 including any inherited destructors)
656
657 We only need this for a Client subclasses since we don't allow
658 multiple Clents to be opened concurrently, but multiple BasicClient
659 would be fine
660 */
Wu-cheng Li08ad5ef2012-04-19 12:35:00 +0800661 if (mBusy[cameraId]) {
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -0800662 ALOGW("CameraService::connect X (pid %d, \"%s\") rejected"
663 " (camera %d is still busy).", callingPid,
664 clientName8.string(), cameraId);
Igor Murashkine6800ce2013-03-04 17:25:57 -0800665 return false;
666 }
667
668 return true;
669}
670
Igor Murashkina858ea02014-08-19 14:53:08 -0700671status_t CameraService::connectHelperLocked(
672 /*out*/
673 sp<Client>& client,
674 /*in*/
675 const sp<ICameraClient>& cameraClient,
676 int cameraId,
677 const String16& clientPackageName,
678 int clientUid,
679 int callingPid,
680 int halVersion,
681 bool legacyMode) {
Ruben Brunkb2119af2014-05-09 19:57:56 -0700682
683 int facing = -1;
684 int deviceVersion = getDeviceVersion(cameraId, &facing);
685
Zhijun Heb10cdad2014-06-16 16:38:35 -0700686 if (halVersion < 0 || halVersion == deviceVersion) {
687 // Default path: HAL version is unspecified by caller, create CameraClient
688 // based on device version reported by the HAL.
689 switch(deviceVersion) {
690 case CAMERA_DEVICE_API_VERSION_1_0:
691 client = new CameraClient(this, cameraClient,
692 clientPackageName, cameraId,
Igor Murashkina858ea02014-08-19 14:53:08 -0700693 facing, callingPid, clientUid, getpid(), legacyMode);
Zhijun Heb10cdad2014-06-16 16:38:35 -0700694 break;
695 case CAMERA_DEVICE_API_VERSION_2_0:
696 case CAMERA_DEVICE_API_VERSION_2_1:
697 case CAMERA_DEVICE_API_VERSION_3_0:
698 case CAMERA_DEVICE_API_VERSION_3_1:
699 case CAMERA_DEVICE_API_VERSION_3_2:
700 client = new Camera2Client(this, cameraClient,
701 clientPackageName, cameraId,
Igor Murashkina858ea02014-08-19 14:53:08 -0700702 facing, callingPid, clientUid, getpid(), legacyMode);
Zhijun Heb10cdad2014-06-16 16:38:35 -0700703 break;
704 case -1:
705 ALOGE("Invalid camera id %d", cameraId);
706 return BAD_VALUE;
707 default:
708 ALOGE("Unknown camera device HAL version: %d", deviceVersion);
709 return INVALID_OPERATION;
710 }
711 } else {
712 // A particular HAL version is requested by caller. Create CameraClient
713 // based on the requested HAL version.
714 if (deviceVersion > CAMERA_DEVICE_API_VERSION_1_0 &&
715 halVersion == CAMERA_DEVICE_API_VERSION_1_0) {
716 // Only support higher HAL version device opened as HAL1.0 device.
717 client = new CameraClient(this, cameraClient,
718 clientPackageName, cameraId,
Igor Murashkina858ea02014-08-19 14:53:08 -0700719 facing, callingPid, clientUid, getpid(), legacyMode);
Zhijun Heb10cdad2014-06-16 16:38:35 -0700720 } else {
721 // Other combinations (e.g. HAL3.x open as HAL2.x) are not supported yet.
722 ALOGE("Invalid camera HAL version %x: HAL %x device can only be"
723 " opened as HAL %x device", halVersion, deviceVersion,
724 CAMERA_DEVICE_API_VERSION_1_0);
725 return INVALID_OPERATION;
726 }
Ruben Brunkb2119af2014-05-09 19:57:56 -0700727 }
728
729 status_t status = connectFinishUnsafe(client, client->getRemote());
730 if (status != OK) {
731 // this is probably not recoverable.. maybe the client can try again
Ruben Brunkb2119af2014-05-09 19:57:56 -0700732 return status;
733 }
734
735 mClient[cameraId] = client;
736 LOG1("CameraService::connect X (id %d, this pid is %d)", cameraId,
737 getpid());
738
739 return OK;
740}
741
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700742status_t CameraService::connect(
Igor Murashkine6800ce2013-03-04 17:25:57 -0800743 const sp<ICameraClient>& cameraClient,
744 int cameraId,
745 const String16& clientPackageName,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700746 int clientUid,
747 /*out*/
748 sp<ICamera>& device) {
Igor Murashkine6800ce2013-03-04 17:25:57 -0800749
750 String8 clientName8(clientPackageName);
751 int callingPid = getCallingPid();
752
753 LOG1("CameraService::connect E (pid %d \"%s\", id %d)", callingPid,
754 clientName8.string(), cameraId);
755
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700756 status_t status = validateConnect(cameraId, /*inout*/clientUid);
757 if (status != OK) {
758 return status;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700759 }
760
Igor Murashkine6800ce2013-03-04 17:25:57 -0800761
Igor Murashkine7ee7632013-06-11 18:10:18 -0700762 sp<Client> client;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700763 {
764 Mutex::Autolock lock(mServiceLock);
Igor Murashkine7ee7632013-06-11 18:10:18 -0700765 sp<BasicClient> clientTmp;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700766 if (!canConnectUnsafe(cameraId, clientPackageName,
Marco Nelissenf8880202014-11-14 07:58:25 -0800767 IInterface::asBinder(cameraClient),
Igor Murashkine7ee7632013-06-11 18:10:18 -0700768 /*out*/clientTmp)) {
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700769 return -EBUSY;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700770 } else if (client.get() != NULL) {
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700771 device = static_cast<Client*>(clientTmp.get());
772 return OK;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700773 }
774
Igor Murashkina858ea02014-08-19 14:53:08 -0700775 status = connectHelperLocked(/*out*/client,
776 cameraClient,
Ruben Brunkb2119af2014-05-09 19:57:56 -0700777 cameraId,
778 clientPackageName,
779 clientUid,
Igor Murashkina858ea02014-08-19 14:53:08 -0700780 callingPid);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700781 if (status != OK) {
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700782 return status;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700783 }
784
Igor Murashkine6800ce2013-03-04 17:25:57 -0800785 }
Igor Murashkinacd695c2013-03-13 17:23:00 -0700786 // important: release the mutex here so the client can call back
787 // into the service from its destructor (can be at the end of the call)
Igor Murashkinbfc99152013-02-27 12:55:20 -0800788
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700789 device = client;
790 return OK;
Mathias Agopian65ab4712010-07-14 17:59:35 -0700791}
792
Zhijun Heb10cdad2014-06-16 16:38:35 -0700793status_t CameraService::connectLegacy(
794 const sp<ICameraClient>& cameraClient,
795 int cameraId, int halVersion,
796 const String16& clientPackageName,
797 int clientUid,
798 /*out*/
799 sp<ICamera>& device) {
800
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800801 int apiVersion = mModule->getRawModule()->module_api_version;
Igor Murashkin3d07d1a2014-06-20 11:27:03 -0700802 if (halVersion != CAMERA_HAL_API_VERSION_UNSPECIFIED &&
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800803 apiVersion < CAMERA_MODULE_API_VERSION_2_3) {
Igor Murashkin3d07d1a2014-06-20 11:27:03 -0700804 /*
805 * Either the HAL version is unspecified in which case this just creates
806 * a camera client selected by the latest device version, or
807 * it's a particular version in which case the HAL must supported
808 * the open_legacy call
809 */
Zhijun Heb10cdad2014-06-16 16:38:35 -0700810 ALOGE("%s: camera HAL module version %x doesn't support connecting to legacy HAL devices!",
Yin-Chia Yehe074a932015-01-30 10:29:02 -0800811 __FUNCTION__, apiVersion);
Zhijun Heb10cdad2014-06-16 16:38:35 -0700812 return INVALID_OPERATION;
813 }
814
815 String8 clientName8(clientPackageName);
816 int callingPid = getCallingPid();
817
818 LOG1("CameraService::connect legacy E (pid %d \"%s\", id %d)", callingPid,
819 clientName8.string(), cameraId);
820
821 status_t status = validateConnect(cameraId, /*inout*/clientUid);
822 if (status != OK) {
823 return status;
824 }
825
826 sp<Client> client;
827 {
828 Mutex::Autolock lock(mServiceLock);
829 sp<BasicClient> clientTmp;
830 if (!canConnectUnsafe(cameraId, clientPackageName,
Marco Nelissenf8880202014-11-14 07:58:25 -0800831 IInterface::asBinder(cameraClient),
Zhijun Heb10cdad2014-06-16 16:38:35 -0700832 /*out*/clientTmp)) {
833 return -EBUSY;
834 } else if (client.get() != NULL) {
835 device = static_cast<Client*>(clientTmp.get());
836 return OK;
837 }
838
Igor Murashkina858ea02014-08-19 14:53:08 -0700839 status = connectHelperLocked(/*out*/client,
840 cameraClient,
Zhijun Heb10cdad2014-06-16 16:38:35 -0700841 cameraId,
842 clientPackageName,
843 clientUid,
844 callingPid,
Igor Murashkina858ea02014-08-19 14:53:08 -0700845 halVersion,
846 /*legacyMode*/true);
Zhijun Heb10cdad2014-06-16 16:38:35 -0700847 if (status != OK) {
848 return status;
849 }
850
851 }
852 // important: release the mutex here so the client can call back
853 // into the service from its destructor (can be at the end of the call)
854
855 device = client;
856 return OK;
857}
858
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700859status_t CameraService::connectFinishUnsafe(const sp<BasicClient>& client,
860 const sp<IBinder>& remoteCallback) {
861 status_t status = client->initialize(mModule);
862 if (status != OK) {
Ruben Brunk5fc9d902014-11-20 13:34:36 -0800863 ALOGE("%s: Could not initialize client from HAL module.", __FUNCTION__);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700864 return status;
Igor Murashkine6800ce2013-03-04 17:25:57 -0800865 }
Ruben Brunkb2119af2014-05-09 19:57:56 -0700866 if (remoteCallback != NULL) {
867 remoteCallback->linkToDeath(this);
868 }
Igor Murashkine6800ce2013-03-04 17:25:57 -0800869
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700870 return OK;
Igor Murashkine6800ce2013-03-04 17:25:57 -0800871}
872
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700873status_t CameraService::connectPro(
Igor Murashkin634a5152013-02-20 17:15:11 -0800874 const sp<IProCameraCallbacks>& cameraCb,
Igor Murashkinc073ba52013-02-26 14:32:34 -0800875 int cameraId,
876 const String16& clientPackageName,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700877 int clientUid,
878 /*out*/
879 sp<IProCameraUser>& device)
Igor Murashkin634a5152013-02-20 17:15:11 -0800880{
Natalie Silvanoviche1b55da2014-05-01 14:44:52 -0700881 if (cameraCb == 0) {
882 ALOGE("%s: Callback must not be null", __FUNCTION__);
883 return BAD_VALUE;
884 }
885
Igor Murashkinbfc99152013-02-27 12:55:20 -0800886 String8 clientName8(clientPackageName);
Mathias Agopian65ab4712010-07-14 17:59:35 -0700887 int callingPid = getCallingPid();
Igor Murashkin634a5152013-02-20 17:15:11 -0800888
Igor Murashkine6800ce2013-03-04 17:25:57 -0800889 LOG1("CameraService::connectPro E (pid %d \"%s\", id %d)", callingPid,
890 clientName8.string(), cameraId);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700891 status_t status = validateConnect(cameraId, /*inout*/clientUid);
892 if (status != OK) {
893 return status;
Igor Murashkin634a5152013-02-20 17:15:11 -0800894 }
895
Igor Murashkinacd695c2013-03-13 17:23:00 -0700896 sp<ProClient> client;
Igor Murashkine6800ce2013-03-04 17:25:57 -0800897 {
Igor Murashkinacd695c2013-03-13 17:23:00 -0700898 Mutex::Autolock lock(mServiceLock);
899 {
Igor Murashkine7ee7632013-06-11 18:10:18 -0700900 sp<BasicClient> client;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700901 if (!canConnectUnsafe(cameraId, clientPackageName,
Marco Nelissenf8880202014-11-14 07:58:25 -0800902 IInterface::asBinder(cameraCb),
Igor Murashkinacd695c2013-03-13 17:23:00 -0700903 /*out*/client)) {
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700904 return -EBUSY;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700905 }
906 }
907
908 int facing = -1;
909 int deviceVersion = getDeviceVersion(cameraId, &facing);
910
911 switch(deviceVersion) {
912 case CAMERA_DEVICE_API_VERSION_1_0:
913 ALOGE("Camera id %d uses HALv1, doesn't support ProCamera",
914 cameraId);
Ruben Brunk17963d12013-08-19 15:21:19 -0700915 return -EOPNOTSUPP;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700916 break;
917 case CAMERA_DEVICE_API_VERSION_2_0:
918 case CAMERA_DEVICE_API_VERSION_2_1:
Zhijun He47110052013-07-22 17:34:34 -0700919 case CAMERA_DEVICE_API_VERSION_3_0:
Zhijun He95dd5ba2014-03-26 18:18:00 -0700920 case CAMERA_DEVICE_API_VERSION_3_1:
921 case CAMERA_DEVICE_API_VERSION_3_2:
Eino-Ville Talvala63d877f2014-06-16 19:21:12 -0700922 client = new ProCamera2Client(this, cameraCb, clientPackageName,
923 cameraId, facing, callingPid, clientUid, getpid());
Igor Murashkinacd695c2013-03-13 17:23:00 -0700924 break;
925 case -1:
926 ALOGE("Invalid camera id %d", cameraId);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700927 return BAD_VALUE;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700928 default:
929 ALOGE("Unknown camera device HAL version: %d", deviceVersion);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700930 return INVALID_OPERATION;
Igor Murashkine6800ce2013-03-04 17:25:57 -0800931 }
Igor Murashkinacd695c2013-03-13 17:23:00 -0700932
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700933 status_t status = connectFinishUnsafe(client, client->getRemote());
934 if (status != OK) {
935 return status;
Igor Murashkinacd695c2013-03-13 17:23:00 -0700936 }
937
938 mProClientList[cameraId].push(client);
939
940 LOG1("CameraService::connectPro X (id %d, this pid is %d)", cameraId,
941 getpid());
Igor Murashkine6800ce2013-03-04 17:25:57 -0800942 }
Igor Murashkinacd695c2013-03-13 17:23:00 -0700943 // important: release the mutex here so the client can call back
944 // into the service from its destructor (can be at the end of the call)
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700945 device = client;
946 return OK;
Igor Murashkinbfc99152013-02-27 12:55:20 -0800947}
Igor Murashkin634a5152013-02-20 17:15:11 -0800948
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700949status_t CameraService::connectDevice(
Igor Murashkine7ee7632013-06-11 18:10:18 -0700950 const sp<ICameraDeviceCallbacks>& cameraCb,
951 int cameraId,
952 const String16& clientPackageName,
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700953 int clientUid,
954 /*out*/
955 sp<ICameraDeviceUser>& device)
Igor Murashkine7ee7632013-06-11 18:10:18 -0700956{
Igor Murashkine7ee7632013-06-11 18:10:18 -0700957
958 String8 clientName8(clientPackageName);
959 int callingPid = getCallingPid();
960
961 LOG1("CameraService::connectDevice E (pid %d \"%s\", id %d)", callingPid,
962 clientName8.string(), cameraId);
963
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700964 status_t status = validateConnect(cameraId, /*inout*/clientUid);
965 if (status != OK) {
966 return status;
Igor Murashkine7ee7632013-06-11 18:10:18 -0700967 }
968
969 sp<CameraDeviceClient> client;
970 {
971 Mutex::Autolock lock(mServiceLock);
972 {
973 sp<BasicClient> client;
974 if (!canConnectUnsafe(cameraId, clientPackageName,
Marco Nelissenf8880202014-11-14 07:58:25 -0800975 IInterface::asBinder(cameraCb),
Igor Murashkine7ee7632013-06-11 18:10:18 -0700976 /*out*/client)) {
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700977 return -EBUSY;
Igor Murashkine7ee7632013-06-11 18:10:18 -0700978 }
979 }
980
981 int facing = -1;
982 int deviceVersion = getDeviceVersion(cameraId, &facing);
983
Igor Murashkine7ee7632013-06-11 18:10:18 -0700984 switch(deviceVersion) {
985 case CAMERA_DEVICE_API_VERSION_1_0:
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700986 ALOGW("Camera using old HAL version: %d", deviceVersion);
Ruben Brunk17963d12013-08-19 15:21:19 -0700987 return -EOPNOTSUPP;
Igor Murashkine7ee7632013-06-11 18:10:18 -0700988 // TODO: don't allow 2.0 Only allow 2.1 and higher
989 case CAMERA_DEVICE_API_VERSION_2_0:
990 case CAMERA_DEVICE_API_VERSION_2_1:
991 case CAMERA_DEVICE_API_VERSION_3_0:
Zhijun He95dd5ba2014-03-26 18:18:00 -0700992 case CAMERA_DEVICE_API_VERSION_3_1:
993 case CAMERA_DEVICE_API_VERSION_3_2:
Eino-Ville Talvala63d877f2014-06-16 19:21:12 -0700994 client = new CameraDeviceClient(this, cameraCb, clientPackageName,
995 cameraId, facing, callingPid, clientUid, getpid());
Igor Murashkine7ee7632013-06-11 18:10:18 -0700996 break;
997 case -1:
998 ALOGE("Invalid camera id %d", cameraId);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -0700999 return BAD_VALUE;
Igor Murashkine7ee7632013-06-11 18:10:18 -07001000 default:
1001 ALOGE("Unknown camera device HAL version: %d", deviceVersion);
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001002 return INVALID_OPERATION;
Igor Murashkine7ee7632013-06-11 18:10:18 -07001003 }
1004
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001005 status_t status = connectFinishUnsafe(client, client->getRemote());
1006 if (status != OK) {
Igor Murashkine7ee7632013-06-11 18:10:18 -07001007 // this is probably not recoverable.. maybe the client can try again
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001008 return status;
Igor Murashkine7ee7632013-06-11 18:10:18 -07001009 }
1010
1011 LOG1("CameraService::connectDevice X (id %d, this pid is %d)", cameraId,
1012 getpid());
1013
1014 mClient[cameraId] = client;
1015 }
1016 // important: release the mutex here so the client can call back
1017 // into the service from its destructor (can be at the end of the call)
1018
Ruben Brunk0f61d8f2013-08-08 13:07:18 -07001019 device = client;
1020 return OK;
Igor Murashkine7ee7632013-06-11 18:10:18 -07001021}
1022
1023
Igor Murashkinbfc99152013-02-27 12:55:20 -08001024status_t CameraService::addListener(
1025 const sp<ICameraServiceListener>& listener) {
1026 ALOGV("%s: Add listener %p", __FUNCTION__, listener.get());
Igor Murashkin634a5152013-02-20 17:15:11 -08001027
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07001028 if (listener == 0) {
1029 ALOGE("%s: Listener must not be null", __FUNCTION__);
1030 return BAD_VALUE;
1031 }
1032
Igor Murashkinbfc99152013-02-27 12:55:20 -08001033 Mutex::Autolock lock(mServiceLock);
1034
1035 Vector<sp<ICameraServiceListener> >::iterator it, end;
1036 for (it = mListenerList.begin(); it != mListenerList.end(); ++it) {
Marco Nelissenf8880202014-11-14 07:58:25 -08001037 if (IInterface::asBinder(*it) == IInterface::asBinder(listener)) {
Igor Murashkinbfc99152013-02-27 12:55:20 -08001038 ALOGW("%s: Tried to add listener %p which was already subscribed",
1039 __FUNCTION__, listener.get());
1040 return ALREADY_EXISTS;
1041 }
1042 }
1043
1044 mListenerList.push_back(listener);
1045
Igor Murashkincba2c162013-03-20 15:56:31 -07001046 /* Immediately signal current status to this listener only */
1047 {
1048 Mutex::Autolock m(mStatusMutex) ;
1049 int numCams = getNumberOfCameras();
1050 for (int i = 0; i < numCams; ++i) {
1051 listener->onStatusChanged(mStatusList[i], i);
1052 }
1053 }
1054
Igor Murashkinbfc99152013-02-27 12:55:20 -08001055 return OK;
1056}
1057status_t CameraService::removeListener(
1058 const sp<ICameraServiceListener>& listener) {
1059 ALOGV("%s: Remove listener %p", __FUNCTION__, listener.get());
1060
Igor Murashkinbd3e2e02014-03-17 13:01:41 -07001061 if (listener == 0) {
1062 ALOGE("%s: Listener must not be null", __FUNCTION__);
1063 return BAD_VALUE;
1064 }
1065
Igor Murashkinbfc99152013-02-27 12:55:20 -08001066 Mutex::Autolock lock(mServiceLock);
1067
1068 Vector<sp<ICameraServiceListener> >::iterator it;
1069 for (it = mListenerList.begin(); it != mListenerList.end(); ++it) {
Marco Nelissenf8880202014-11-14 07:58:25 -08001070 if (IInterface::asBinder(*it) == IInterface::asBinder(listener)) {
Igor Murashkinbfc99152013-02-27 12:55:20 -08001071 mListenerList.erase(it);
1072 return OK;
1073 }
1074 }
1075
1076 ALOGW("%s: Tried to remove a listener %p which was not subscribed",
1077 __FUNCTION__, listener.get());
1078
1079 return BAD_VALUE;
Igor Murashkin634a5152013-02-20 17:15:11 -08001080}
1081
Igor Murashkin65d14b92014-06-17 12:03:20 -07001082status_t CameraService::getLegacyParameters(
1083 int cameraId,
1084 /*out*/
1085 String16* parameters) {
1086 ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
1087
1088 if (parameters == NULL) {
1089 ALOGE("%s: parameters must not be null", __FUNCTION__);
1090 return BAD_VALUE;
1091 }
1092
1093 status_t ret = 0;
1094
1095 CameraParameters shimParams;
1096 if ((ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)) != OK) {
1097 // Error logged by caller
1098 return ret;
1099 }
1100
1101 String8 shimParamsString8 = shimParams.flatten();
1102 String16 shimParamsString16 = String16(shimParamsString8);
1103
1104 *parameters = shimParamsString16;
1105
1106 return OK;
1107}
1108
1109status_t CameraService::supportsCameraApi(int cameraId, int apiVersion) {
1110 ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
1111
1112 switch (apiVersion) {
1113 case API_VERSION_1:
1114 case API_VERSION_2:
1115 break;
1116 default:
1117 ALOGE("%s: Bad API version %d", __FUNCTION__, apiVersion);
1118 return BAD_VALUE;
1119 }
1120
1121 int facing = -1;
1122 int deviceVersion = getDeviceVersion(cameraId, &facing);
1123
1124 switch(deviceVersion) {
1125 case CAMERA_DEVICE_API_VERSION_1_0:
1126 case CAMERA_DEVICE_API_VERSION_2_0:
1127 case CAMERA_DEVICE_API_VERSION_2_1:
1128 case CAMERA_DEVICE_API_VERSION_3_0:
1129 case CAMERA_DEVICE_API_VERSION_3_1:
1130 if (apiVersion == API_VERSION_2) {
1131 ALOGV("%s: Camera id %d uses HAL prior to HAL3.2, doesn't support api2 without shim",
1132 __FUNCTION__, cameraId);
1133 return -EOPNOTSUPP;
1134 } else { // if (apiVersion == API_VERSION_1) {
1135 ALOGV("%s: Camera id %d uses older HAL before 3.2, but api1 is always supported",
1136 __FUNCTION__, cameraId);
1137 return OK;
1138 }
1139 case CAMERA_DEVICE_API_VERSION_3_2:
1140 ALOGV("%s: Camera id %d uses HAL3.2 or newer, supports api1/api2 directly",
1141 __FUNCTION__, cameraId);
1142 return OK;
1143 case -1:
1144 ALOGE("%s: Invalid camera id %d", __FUNCTION__, cameraId);
1145 return BAD_VALUE;
1146 default:
1147 ALOGE("%s: Unknown camera device HAL version: %d", __FUNCTION__, deviceVersion);
1148 return INVALID_OPERATION;
1149 }
1150
1151 return OK;
1152}
1153
Igor Murashkin634a5152013-02-20 17:15:11 -08001154void CameraService::removeClientByRemote(const wp<IBinder>& remoteBinder) {
1155 int callingPid = getCallingPid();
1156 LOG1("CameraService::removeClientByRemote E (pid %d)", callingPid);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001157
Igor Murashkinecf17e82012-10-02 16:05:11 -07001158 // Declare this before the lock to make absolutely sure the
1159 // destructor won't be called with the lock held.
1160 Mutex::Autolock lock(mServiceLock);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001161
Igor Murashkinecf17e82012-10-02 16:05:11 -07001162 int outIndex;
Igor Murashkine7ee7632013-06-11 18:10:18 -07001163 sp<BasicClient> client = findClientUnsafe(remoteBinder, outIndex);
Igor Murashkinecf17e82012-10-02 16:05:11 -07001164
1165 if (client != 0) {
1166 // Found our camera, clear and leave.
1167 LOG1("removeClient: clear camera %d", outIndex);
Igor Murashkinecf17e82012-10-02 16:05:11 -07001168
Ruben Brunkb2119af2014-05-09 19:57:56 -07001169 sp<IBinder> remote = client->getRemote();
1170 if (remote != NULL) {
1171 remote->unlinkToDeath(this);
1172 }
1173
1174 mClient[outIndex].clear();
Igor Murashkin634a5152013-02-20 17:15:11 -08001175 } else {
1176
1177 sp<ProClient> clientPro = findProClientUnsafe(remoteBinder);
1178
1179 if (clientPro != NULL) {
1180 // Found our camera, clear and leave.
1181 LOG1("removeClient: clear pro %p", clientPro.get());
1182
Marco Nelissenf8880202014-11-14 07:58:25 -08001183 IInterface::asBinder(clientPro->getRemoteCallback())->unlinkToDeath(this);
Igor Murashkin634a5152013-02-20 17:15:11 -08001184 }
Igor Murashkinecf17e82012-10-02 16:05:11 -07001185 }
1186
Igor Murashkin634a5152013-02-20 17:15:11 -08001187 LOG1("CameraService::removeClientByRemote X (pid %d)", callingPid);
1188}
1189
1190sp<CameraService::ProClient> CameraService::findProClientUnsafe(
1191 const wp<IBinder>& cameraCallbacksRemote)
1192{
1193 sp<ProClient> clientPro;
1194
1195 for (int i = 0; i < mNumberOfCameras; ++i) {
1196 Vector<size_t> removeIdx;
1197
1198 for (size_t j = 0; j < mProClientList[i].size(); ++j) {
1199 wp<ProClient> cl = mProClientList[i][j];
1200
1201 sp<ProClient> clStrong = cl.promote();
1202 if (clStrong != NULL && clStrong->getRemote() == cameraCallbacksRemote) {
1203 clientPro = clStrong;
1204 break;
1205 } else if (clStrong == NULL) {
1206 // mark to clean up dead ptr
1207 removeIdx.push(j);
1208 }
1209 }
1210
1211 // remove stale ptrs (in reverse so the indices dont change)
1212 for (ssize_t j = (ssize_t)removeIdx.size() - 1; j >= 0; --j) {
1213 mProClientList[i].removeAt(removeIdx[j]);
1214 }
1215
1216 }
1217
1218 return clientPro;
Igor Murashkinecf17e82012-10-02 16:05:11 -07001219}
1220
Igor Murashkine7ee7632013-06-11 18:10:18 -07001221sp<CameraService::BasicClient> CameraService::findClientUnsafe(
Igor Murashkin294d0ec2012-10-05 10:44:57 -07001222 const wp<IBinder>& cameraClient, int& outIndex) {
Igor Murashkine7ee7632013-06-11 18:10:18 -07001223 sp<BasicClient> client;
Igor Murashkinecf17e82012-10-02 16:05:11 -07001224
1225 for (int i = 0; i < mNumberOfCameras; i++) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001226
1227 // This happens when we have already disconnected (or this is
1228 // just another unused camera).
1229 if (mClient[i] == 0) continue;
1230
1231 // Promote mClient. It can fail if we are called from this path:
Igor Murashkin634a5152013-02-20 17:15:11 -08001232 // Client::~Client() -> disconnect() -> removeClientByRemote().
Mathias Agopian65ab4712010-07-14 17:59:35 -07001233 client = mClient[i].promote();
1234
Igor Murashkinecf17e82012-10-02 16:05:11 -07001235 // Clean up stale client entry
1236 if (client == NULL) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001237 mClient[i].clear();
1238 continue;
1239 }
1240
Igor Murashkine7ee7632013-06-11 18:10:18 -07001241 if (cameraClient == client->getRemote()) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07001242 // Found our camera
1243 outIndex = i;
1244 return client;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001245 }
1246 }
1247
Igor Murashkinecf17e82012-10-02 16:05:11 -07001248 outIndex = -1;
1249 return NULL;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001250}
1251
Igor Murashkine7ee7632013-06-11 18:10:18 -07001252CameraService::BasicClient* CameraService::getClientByIdUnsafe(int cameraId) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001253 if (cameraId < 0 || cameraId >= mNumberOfCameras) return NULL;
Keun young Parkd8973a72012-03-28 14:13:09 -07001254 return mClient[cameraId].unsafe_get();
1255}
1256
1257Mutex* CameraService::getClientLockById(int cameraId) {
1258 if (cameraId < 0 || cameraId >= mNumberOfCameras) return NULL;
1259 return &mClientLock[cameraId];
Mathias Agopian65ab4712010-07-14 17:59:35 -07001260}
1261
Igor Murashkin634a5152013-02-20 17:15:11 -08001262sp<CameraService::BasicClient> CameraService::getClientByRemote(
Igor Murashkin294d0ec2012-10-05 10:44:57 -07001263 const wp<IBinder>& cameraClient) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07001264
1265 // Declare this before the lock to make absolutely sure the
1266 // destructor won't be called with the lock held.
Igor Murashkin634a5152013-02-20 17:15:11 -08001267 sp<BasicClient> client;
Igor Murashkinecf17e82012-10-02 16:05:11 -07001268
1269 Mutex::Autolock lock(mServiceLock);
1270
1271 int outIndex;
1272 client = findClientUnsafe(cameraClient, outIndex);
1273
1274 return client;
1275}
1276
Mathias Agopian65ab4712010-07-14 17:59:35 -07001277status_t CameraService::onTransact(
1278 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
1279 // Permission checks
1280 switch (code) {
1281 case BnCameraService::CONNECT:
Igor Murashkin634a5152013-02-20 17:15:11 -08001282 case BnCameraService::CONNECT_PRO:
Eino-Ville Talvala63d877f2014-06-16 19:21:12 -07001283 case BnCameraService::CONNECT_DEVICE:
Zhijun Heb10cdad2014-06-16 16:38:35 -07001284 case BnCameraService::CONNECT_LEGACY:
Mathias Agopian65ab4712010-07-14 17:59:35 -07001285 const int pid = getCallingPid();
1286 const int self_pid = getpid();
1287 if (pid != self_pid) {
1288 // we're called from a different process, do the real check
1289 if (!checkCallingPermission(
1290 String16("android.permission.CAMERA"))) {
1291 const int uid = getCallingUid();
Steve Block29357bc2012-01-06 19:20:56 +00001292 ALOGE("Permission Denial: "
Mathias Agopian65ab4712010-07-14 17:59:35 -07001293 "can't use the camera pid=%d, uid=%d", pid, uid);
1294 return PERMISSION_DENIED;
1295 }
1296 }
1297 break;
1298 }
1299
1300 return BnCameraService::onTransact(code, data, reply, flags);
1301}
1302
1303// The reason we need this busy bit is a new CameraService::connect() request
1304// may come in while the previous Client's destructor has not been run or is
1305// still running. If the last strong reference of the previous Client is gone
1306// but the destructor has not been finished, we should not allow the new Client
1307// to be created because we need to wait for the previous Client to tear down
1308// the hardware first.
1309void CameraService::setCameraBusy(int cameraId) {
1310 android_atomic_write(1, &mBusy[cameraId]);
Igor Murashkinecf17e82012-10-02 16:05:11 -07001311
1312 ALOGV("setCameraBusy cameraId=%d", cameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001313}
1314
1315void CameraService::setCameraFree(int cameraId) {
1316 android_atomic_write(0, &mBusy[cameraId]);
Igor Murashkinecf17e82012-10-02 16:05:11 -07001317
1318 ALOGV("setCameraFree cameraId=%d", cameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001319}
1320
1321// We share the media players for shutter and recording sound for all clients.
1322// A reference count is kept to determine when we will actually release the
1323// media players.
1324
Chih-Chung Changff4f55c2011-10-17 19:03:12 +08001325MediaPlayer* CameraService::newMediaPlayer(const char *file) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001326 MediaPlayer* mp = new MediaPlayer();
Andreas Huber1b86fe02014-01-29 11:13:26 -08001327 if (mp->setDataSource(NULL /* httpService */, file, NULL) == NO_ERROR) {
Eino-Ville Talvala60a78ac2012-01-05 15:34:53 -08001328 mp->setAudioStreamType(AUDIO_STREAM_ENFORCED_AUDIBLE);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001329 mp->prepare();
1330 } else {
Steve Block29357bc2012-01-06 19:20:56 +00001331 ALOGE("Failed to load CameraService sounds: %s", file);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001332 return NULL;
1333 }
1334 return mp;
1335}
1336
1337void CameraService::loadSound() {
1338 Mutex::Autolock lock(mSoundLock);
1339 LOG1("CameraService::loadSound ref=%d", mSoundRef);
1340 if (mSoundRef++) return;
1341
1342 mSoundPlayer[SOUND_SHUTTER] = newMediaPlayer("/system/media/audio/ui/camera_click.ogg");
1343 mSoundPlayer[SOUND_RECORDING] = newMediaPlayer("/system/media/audio/ui/VideoRecord.ogg");
1344}
1345
1346void CameraService::releaseSound() {
1347 Mutex::Autolock lock(mSoundLock);
1348 LOG1("CameraService::releaseSound ref=%d", mSoundRef);
1349 if (--mSoundRef) return;
1350
1351 for (int i = 0; i < NUM_SOUNDS; i++) {
1352 if (mSoundPlayer[i] != 0) {
1353 mSoundPlayer[i]->disconnect();
1354 mSoundPlayer[i].clear();
1355 }
1356 }
1357}
1358
1359void CameraService::playSound(sound_kind kind) {
1360 LOG1("playSound(%d)", kind);
1361 Mutex::Autolock lock(mSoundLock);
1362 sp<MediaPlayer> player = mSoundPlayer[kind];
1363 if (player != 0) {
Chih-Chung Chang8888a752011-10-20 10:47:26 +08001364 player->seekTo(0);
1365 player->start();
Mathias Agopian65ab4712010-07-14 17:59:35 -07001366 }
1367}
1368
1369// ----------------------------------------------------------------------------
1370
1371CameraService::Client::Client(const sp<CameraService>& cameraService,
Wu-cheng Lib7a67942010-08-17 15:45:37 -07001372 const sp<ICameraClient>& cameraClient,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001373 const String16& clientPackageName,
1374 int cameraId, int cameraFacing,
1375 int clientPid, uid_t clientUid,
1376 int servicePid) :
Eino-Ville Talvalae992e752014-11-07 16:17:48 -08001377 CameraService::BasicClient(cameraService,
Marco Nelissenf8880202014-11-14 07:58:25 -08001378 IInterface::asBinder(cameraClient),
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001379 clientPackageName,
1380 cameraId, cameraFacing,
1381 clientPid, clientUid,
1382 servicePid)
Igor Murashkin634a5152013-02-20 17:15:11 -08001383{
Mathias Agopian65ab4712010-07-14 17:59:35 -07001384 int callingPid = getCallingPid();
Wu-cheng Li2fd24402012-02-23 19:01:00 -08001385 LOG1("Client::Client E (pid %d, id %d)", callingPid, cameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001386
Igor Murashkin44cfcf02013-03-01 16:22:28 -08001387 mRemoteCallback = cameraClient;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001388
Mathias Agopian65ab4712010-07-14 17:59:35 -07001389 cameraService->setCameraBusy(cameraId);
1390 cameraService->loadSound();
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001391
Wu-cheng Li2fd24402012-02-23 19:01:00 -08001392 LOG1("Client::Client X (pid %d, id %d)", callingPid, cameraId);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001393}
1394
Mathias Agopian65ab4712010-07-14 17:59:35 -07001395// tear down the client
1396CameraService::Client::~Client() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07001397 ALOGV("~Client");
Igor Murashkin634a5152013-02-20 17:15:11 -08001398 mDestructionStarted = true;
1399
Eino-Ville Talvalaf69c70d2012-05-20 15:59:14 -07001400 mCameraService->releaseSound();
Igor Murashkin036bc3e2012-10-08 15:09:46 -07001401 // unconditionally disconnect. function is idempotent
1402 Client::disconnect();
Mathias Agopian65ab4712010-07-14 17:59:35 -07001403}
1404
Igor Murashkin634a5152013-02-20 17:15:11 -08001405CameraService::BasicClient::BasicClient(const sp<CameraService>& cameraService,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001406 const sp<IBinder>& remoteCallback,
1407 const String16& clientPackageName,
1408 int cameraId, int cameraFacing,
1409 int clientPid, uid_t clientUid,
1410 int servicePid):
1411 mClientPackageName(clientPackageName)
Igor Murashkin634a5152013-02-20 17:15:11 -08001412{
1413 mCameraService = cameraService;
Igor Murashkin44cfcf02013-03-01 16:22:28 -08001414 mRemoteBinder = remoteCallback;
Igor Murashkin634a5152013-02-20 17:15:11 -08001415 mCameraId = cameraId;
1416 mCameraFacing = cameraFacing;
1417 mClientPid = clientPid;
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001418 mClientUid = clientUid;
Igor Murashkin634a5152013-02-20 17:15:11 -08001419 mServicePid = servicePid;
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001420 mOpsActive = false;
Igor Murashkin634a5152013-02-20 17:15:11 -08001421 mDestructionStarted = false;
1422}
1423
1424CameraService::BasicClient::~BasicClient() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07001425 ALOGV("~BasicClient");
Igor Murashkin634a5152013-02-20 17:15:11 -08001426 mDestructionStarted = true;
1427}
1428
1429void CameraService::BasicClient::disconnect() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07001430 ALOGV("BasicClient::disconnect");
Igor Murashkin44cfcf02013-03-01 16:22:28 -08001431 mCameraService->removeClientByRemote(mRemoteBinder);
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001432
1433 finishCameraOps();
Igor Murashkincba2c162013-03-20 15:56:31 -07001434 // client shouldn't be able to call into us anymore
1435 mClientPid = 0;
Igor Murashkin634a5152013-02-20 17:15:11 -08001436}
1437
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001438status_t CameraService::BasicClient::startCameraOps() {
1439 int32_t res;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001440 // Notify app ops that the camera is not available
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001441 mOpsCallback = new OpsCallback(this);
1442
Igor Murashkine6800ce2013-03-04 17:25:57 -08001443 {
1444 ALOGV("%s: Start camera ops, package name = %s, client UID = %d",
1445 __FUNCTION__, String8(mClientPackageName).string(), mClientUid);
1446 }
1447
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001448 mAppOpsManager.startWatchingMode(AppOpsManager::OP_CAMERA,
1449 mClientPackageName, mOpsCallback);
1450 res = mAppOpsManager.startOp(AppOpsManager::OP_CAMERA,
1451 mClientUid, mClientPackageName);
1452
1453 if (res != AppOpsManager::MODE_ALLOWED) {
1454 ALOGI("Camera %d: Access for \"%s\" has been revoked",
1455 mCameraId, String8(mClientPackageName).string());
1456 return PERMISSION_DENIED;
1457 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001458
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001459 mOpsActive = true;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001460
1461 // Transition device availability listeners from PRESENT -> NOT_AVAILABLE
1462 mCameraService->updateStatus(ICameraServiceListener::STATUS_NOT_AVAILABLE,
1463 mCameraId);
1464
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001465 return OK;
1466}
1467
1468status_t CameraService::BasicClient::finishCameraOps() {
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001469 // Check if startCameraOps succeeded, and if so, finish the camera op
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001470 if (mOpsActive) {
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001471 // Notify app ops that the camera is available again
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001472 mAppOpsManager.finishOp(AppOpsManager::OP_CAMERA, mClientUid,
1473 mClientPackageName);
1474 mOpsActive = false;
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001475
1476 // Notify device availability listeners that this camera is available
1477 // again
1478
1479 StatusVector rejectSourceStates;
1480 rejectSourceStates.push_back(ICameraServiceListener::STATUS_NOT_PRESENT);
1481 rejectSourceStates.push_back(ICameraServiceListener::STATUS_ENUMERATING);
1482
1483 // Transition to PRESENT if the camera is not in either of above 2
1484 // states
1485 mCameraService->updateStatus(ICameraServiceListener::STATUS_PRESENT,
1486 mCameraId,
1487 &rejectSourceStates);
1488
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001489 }
Eino-Ville Talvalaf67e23e2014-07-23 17:17:59 -07001490 // Always stop watching, even if no camera op is active
Eino-Ville Talvalae992e752014-11-07 16:17:48 -08001491 if (mOpsCallback != NULL) {
1492 mAppOpsManager.stopWatchingMode(mOpsCallback);
1493 }
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001494 mOpsCallback.clear();
1495
1496 return OK;
1497}
1498
1499void CameraService::BasicClient::opChanged(int32_t op, const String16& packageName) {
1500 String8 name(packageName);
1501 String8 myName(mClientPackageName);
1502
1503 if (op != AppOpsManager::OP_CAMERA) {
1504 ALOGW("Unexpected app ops notification received: %d", op);
1505 return;
1506 }
1507
1508 int32_t res;
1509 res = mAppOpsManager.checkOp(AppOpsManager::OP_CAMERA,
1510 mClientUid, mClientPackageName);
1511 ALOGV("checkOp returns: %d, %s ", res,
1512 res == AppOpsManager::MODE_ALLOWED ? "ALLOWED" :
1513 res == AppOpsManager::MODE_IGNORED ? "IGNORED" :
1514 res == AppOpsManager::MODE_ERRORED ? "ERRORED" :
1515 "UNKNOWN");
1516
1517 if (res != AppOpsManager::MODE_ALLOWED) {
1518 ALOGI("Camera %d: Access for \"%s\" revoked", mCameraId,
1519 myName.string());
1520 // Reset the client PID to allow server-initiated disconnect,
1521 // and to prevent further calls by client.
1522 mClientPid = getCallingPid();
Jianing Weicb0652e2014-03-12 18:29:36 -07001523 CaptureResultExtras resultExtras; // a dummy result (invalid)
1524 notifyError(ICameraDeviceCallbacks::ERROR_CAMERA_SERVICE, resultExtras);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001525 disconnect();
1526 }
1527}
1528
Mathias Agopian65ab4712010-07-14 17:59:35 -07001529// ----------------------------------------------------------------------------
1530
Keun young Parkd8973a72012-03-28 14:13:09 -07001531Mutex* CameraService::Client::getClientLockFromCookie(void* user) {
Kévin PETIT377b2ec2014-02-03 12:35:36 +00001532 return gCameraService->getClientLockById((int)(intptr_t) user);
Keun young Parkd8973a72012-03-28 14:13:09 -07001533}
1534
1535// Provide client pointer for callbacks. Client lock returned from getClientLockFromCookie should
1536// be acquired for this to be safe
1537CameraService::Client* CameraService::Client::getClientFromCookie(void* user) {
Kévin PETIT377b2ec2014-02-03 12:35:36 +00001538 BasicClient *basicClient = gCameraService->getClientByIdUnsafe((int)(intptr_t) user);
Igor Murashkine7ee7632013-06-11 18:10:18 -07001539 // OK: only CameraClient calls this, and they already cast anyway.
1540 Client* client = static_cast<Client*>(basicClient);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001541
1542 // This could happen if the Client is in the process of shutting down (the
1543 // last strong reference is gone, but the destructor hasn't finished
1544 // stopping the hardware).
Keun young Parkd8973a72012-03-28 14:13:09 -07001545 if (client == NULL) return NULL;
1546
1547 // destruction already started, so should not be accessed
1548 if (client->mDestructionStarted) return NULL;
Mathias Agopian65ab4712010-07-14 17:59:35 -07001549
Mathias Agopian65ab4712010-07-14 17:59:35 -07001550 return client;
1551}
1552
Jianing Weicb0652e2014-03-12 18:29:36 -07001553void CameraService::Client::notifyError(ICameraDeviceCallbacks::CameraErrorCode errorCode,
1554 const CaptureResultExtras& resultExtras) {
Igor Murashkin44cfcf02013-03-01 16:22:28 -08001555 mRemoteCallback->notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_RELEASED, 0);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001556}
1557
Igor Murashkin036bc3e2012-10-08 15:09:46 -07001558// NOTE: function is idempotent
Eino-Ville Talvala5e08d602012-05-16 14:59:25 -07001559void CameraService::Client::disconnect() {
Eino-Ville Talvalad09801b2013-04-23 15:16:57 -07001560 ALOGV("Client::disconnect");
Igor Murashkin634a5152013-02-20 17:15:11 -08001561 BasicClient::disconnect();
Eino-Ville Talvala5e08d602012-05-16 14:59:25 -07001562 mCameraService->setCameraFree(mCameraId);
Wu-cheng Lie09591e2010-10-14 20:17:44 +08001563}
1564
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001565CameraService::Client::OpsCallback::OpsCallback(wp<BasicClient> client):
1566 mClient(client) {
1567}
1568
1569void CameraService::Client::OpsCallback::opChanged(int32_t op,
1570 const String16& packageName) {
1571 sp<BasicClient> client = mClient.promote();
1572 if (client != NULL) {
1573 client->opChanged(op, packageName);
1574 }
1575}
1576
Mathias Agopian65ab4712010-07-14 17:59:35 -07001577// ----------------------------------------------------------------------------
Igor Murashkin634a5152013-02-20 17:15:11 -08001578// IProCamera
1579// ----------------------------------------------------------------------------
1580
1581CameraService::ProClient::ProClient(const sp<CameraService>& cameraService,
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001582 const sp<IProCameraCallbacks>& remoteCallback,
1583 const String16& clientPackageName,
1584 int cameraId,
1585 int cameraFacing,
1586 int clientPid,
1587 uid_t clientUid,
1588 int servicePid)
Marco Nelissenf8880202014-11-14 07:58:25 -08001589 : CameraService::BasicClient(cameraService, IInterface::asBinder(remoteCallback),
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001590 clientPackageName, cameraId, cameraFacing,
1591 clientPid, clientUid, servicePid)
Igor Murashkin634a5152013-02-20 17:15:11 -08001592{
1593 mRemoteCallback = remoteCallback;
1594}
1595
1596CameraService::ProClient::~ProClient() {
Igor Murashkin634a5152013-02-20 17:15:11 -08001597}
1598
Jianing Weicb0652e2014-03-12 18:29:36 -07001599void CameraService::ProClient::notifyError(ICameraDeviceCallbacks::CameraErrorCode errorCode,
1600 const CaptureResultExtras& resultExtras) {
Igor Murashkine6800ce2013-03-04 17:25:57 -08001601 mRemoteCallback->notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_RELEASED, 0);
Eino-Ville Talvalaceb388d2013-02-19 10:40:14 -08001602}
1603
Igor Murashkin634a5152013-02-20 17:15:11 -08001604// ----------------------------------------------------------------------------
Mathias Agopian65ab4712010-07-14 17:59:35 -07001605
1606static const int kDumpLockRetries = 50;
1607static const int kDumpLockSleep = 60000;
1608
1609static bool tryLock(Mutex& mutex)
1610{
1611 bool locked = false;
1612 for (int i = 0; i < kDumpLockRetries; ++i) {
1613 if (mutex.tryLock() == NO_ERROR) {
1614 locked = true;
1615 break;
1616 }
1617 usleep(kDumpLockSleep);
1618 }
1619 return locked;
1620}
1621
1622status_t CameraService::dump(int fd, const Vector<String16>& args) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001623 String8 result;
1624 if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
Eino-Ville Talvala611f6192012-05-31 12:28:23 -07001625 result.appendFormat("Permission Denial: "
Mathias Agopian65ab4712010-07-14 17:59:35 -07001626 "can't dump CameraService from pid=%d, uid=%d\n",
1627 getCallingPid(),
1628 getCallingUid());
Mathias Agopian65ab4712010-07-14 17:59:35 -07001629 write(fd, result.string(), result.size());
1630 } else {
1631 bool locked = tryLock(mServiceLock);
1632 // failed to lock - CameraService is probably deadlocked
1633 if (!locked) {
Eino-Ville Talvala611f6192012-05-31 12:28:23 -07001634 result.append("CameraService may be deadlocked\n");
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001635 write(fd, result.string(), result.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07001636 }
1637
1638 bool hasClient = false;
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001639 if (!mModule) {
1640 result = String8::format("No camera module available!\n");
1641 write(fd, result.string(), result.size());
Kalle Lampila6ec3a152013-04-30 15:27:19 +03001642 if (locked) mServiceLock.unlock();
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001643 return NO_ERROR;
1644 }
1645
Yin-Chia Yehe074a932015-01-30 10:29:02 -08001646 const hw_module_t* common = mModule->getRawModule();
1647 result = String8::format("Camera module HAL API version: 0x%x\n", common->hal_api_version);
1648 result.appendFormat("Camera module API version: 0x%x\n", common->module_api_version);
1649 result.appendFormat("Camera module name: %s\n", common->name);
1650 result.appendFormat("Camera module author: %s\n", common->author);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001651 result.appendFormat("Number of camera devices: %d\n\n", mNumberOfCameras);
Ruben Brunkf81648e2014-04-17 16:14:57 -07001652
1653 sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
1654 if (desc == NULL) {
1655 result.appendFormat("Vendor tags left unimplemented.\n");
1656 } else {
1657 result.appendFormat("Vendor tag definitions:\n");
1658 }
1659
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001660 write(fd, result.string(), result.size());
Ruben Brunkf81648e2014-04-17 16:14:57 -07001661
1662 if (desc != NULL) {
1663 desc->dump(fd, /*verbosity*/2, /*indentation*/4);
1664 }
1665
Mathias Agopian65ab4712010-07-14 17:59:35 -07001666 for (int i = 0; i < mNumberOfCameras; i++) {
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001667 result = String8::format("Camera %d static information:\n", i);
1668 camera_info info;
1669
Yin-Chia Yehe074a932015-01-30 10:29:02 -08001670 status_t rc = mModule->getCameraInfo(i, &info);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001671 if (rc != OK) {
1672 result.appendFormat(" Error reading static information!\n");
1673 write(fd, result.string(), result.size());
1674 } else {
1675 result.appendFormat(" Facing: %s\n",
1676 info.facing == CAMERA_FACING_BACK ? "BACK" : "FRONT");
1677 result.appendFormat(" Orientation: %d\n", info.orientation);
1678 int deviceVersion;
Yin-Chia Yehe074a932015-01-30 10:29:02 -08001679 if (common->module_api_version < CAMERA_MODULE_API_VERSION_2_0) {
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001680 deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
1681 } else {
1682 deviceVersion = info.device_version;
1683 }
1684 result.appendFormat(" Device version: 0x%x\n", deviceVersion);
1685 if (deviceVersion >= CAMERA_DEVICE_API_VERSION_2_0) {
1686 result.appendFormat(" Device static metadata:\n");
1687 write(fd, result.string(), result.size());
Eino-Ville Talvala428b77a2012-07-30 09:55:30 -07001688 dump_indented_camera_metadata(info.static_camera_characteristics,
Ruben Brunkf81648e2014-04-17 16:14:57 -07001689 fd, /*verbosity*/2, /*indentation*/4);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001690 } else {
1691 write(fd, result.string(), result.size());
1692 }
1693 }
1694
Igor Murashkine7ee7632013-06-11 18:10:18 -07001695 sp<BasicClient> client = mClient[i].promote();
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001696 if (client == 0) {
1697 result = String8::format(" Device is closed, no client instance\n");
1698 write(fd, result.string(), result.size());
1699 continue;
1700 }
Mathias Agopian65ab4712010-07-14 17:59:35 -07001701 hasClient = true;
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001702 result = String8::format(" Device is open. Client instance dump:\n");
1703 write(fd, result.string(), result.size());
Eino-Ville Talvala5e08d602012-05-16 14:59:25 -07001704 client->dump(fd, args);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001705 }
1706 if (!hasClient) {
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001707 result = String8::format("\nNo active camera clients yet.\n");
1708 write(fd, result.string(), result.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07001709 }
1710
1711 if (locked) mServiceLock.unlock();
1712
Igor Murashkinff3e31d2013-10-23 16:40:06 -07001713 // Dump camera traces if there were any
1714 write(fd, "\n", 1);
1715 camera3::CameraTraces::dump(fd, args);
1716
Mathias Agopian65ab4712010-07-14 17:59:35 -07001717 // change logging level
1718 int n = args.size();
1719 for (int i = 0; i + 1 < n; i++) {
Eino-Ville Talvala611f6192012-05-31 12:28:23 -07001720 String16 verboseOption("-v");
1721 if (args[i] == verboseOption) {
Mathias Agopian65ab4712010-07-14 17:59:35 -07001722 String8 levelStr(args[i+1]);
1723 int level = atoi(levelStr.string());
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001724 result = String8::format("\nSetting log level to %d.\n", level);
Mathias Agopian65ab4712010-07-14 17:59:35 -07001725 setLogLevel(level);
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001726 write(fd, result.string(), result.size());
Mathias Agopian65ab4712010-07-14 17:59:35 -07001727 }
1728 }
Eino-Ville Talvalaf5926132012-07-17 13:54:20 -07001729
Mathias Agopian65ab4712010-07-14 17:59:35 -07001730 }
1731 return NO_ERROR;
1732}
1733
Igor Murashkinecf17e82012-10-02 16:05:11 -07001734/*virtual*/void CameraService::binderDied(
1735 const wp<IBinder> &who) {
1736
Igor Murashkin294d0ec2012-10-05 10:44:57 -07001737 /**
1738 * While tempting to promote the wp<IBinder> into a sp,
1739 * it's actually not supported by the binder driver
1740 */
1741
Igor Murashkinecf17e82012-10-02 16:05:11 -07001742 ALOGV("java clients' binder died");
1743
Igor Murashkin634a5152013-02-20 17:15:11 -08001744 sp<BasicClient> cameraClient = getClientByRemote(who);
Igor Murashkinecf17e82012-10-02 16:05:11 -07001745
Igor Murashkin294d0ec2012-10-05 10:44:57 -07001746 if (cameraClient == 0) {
Igor Murashkinecf17e82012-10-02 16:05:11 -07001747 ALOGV("java clients' binder death already cleaned up (normal case)");
1748 return;
1749 }
1750
Igor Murashkinecf17e82012-10-02 16:05:11 -07001751 ALOGW("Disconnecting camera client %p since the binder for it "
1752 "died (this pid %d)", cameraClient.get(), getCallingPid());
1753
1754 cameraClient->disconnect();
1755
1756}
1757
Igor Murashkinbfc99152013-02-27 12:55:20 -08001758void CameraService::updateStatus(ICameraServiceListener::Status status,
Igor Murashkin93747b92013-05-01 15:42:20 -07001759 int32_t cameraId,
1760 const StatusVector *rejectSourceStates) {
Igor Murashkinbfc99152013-02-27 12:55:20 -08001761 // do not lock mServiceLock here or can get into a deadlock from
1762 // connect() -> ProClient::disconnect -> updateStatus
1763 Mutex::Autolock lock(mStatusMutex);
Igor Murashkinbfc99152013-02-27 12:55:20 -08001764
1765 ICameraServiceListener::Status oldStatus = mStatusList[cameraId];
1766
1767 mStatusList[cameraId] = status;
1768
1769 if (oldStatus != status) {
1770 ALOGV("%s: Status has changed for camera ID %d from 0x%x to 0x%x",
1771 __FUNCTION__, cameraId, (uint32_t)oldStatus, (uint32_t)status);
1772
Igor Murashkincba2c162013-03-20 15:56:31 -07001773 if (oldStatus == ICameraServiceListener::STATUS_NOT_PRESENT &&
1774 (status != ICameraServiceListener::STATUS_PRESENT &&
1775 status != ICameraServiceListener::STATUS_ENUMERATING)) {
1776
1777 ALOGW("%s: From NOT_PRESENT can only transition into PRESENT"
1778 " or ENUMERATING", __FUNCTION__);
1779 mStatusList[cameraId] = oldStatus;
1780 return;
1781 }
1782
Igor Murashkin93747b92013-05-01 15:42:20 -07001783 if (rejectSourceStates != NULL) {
1784 const StatusVector &rejectList = *rejectSourceStates;
1785 StatusVector::const_iterator it = rejectList.begin();
1786
1787 /**
1788 * Sometimes we want to conditionally do a transition.
1789 * For example if a client disconnects, we want to go to PRESENT
1790 * only if we weren't already in NOT_PRESENT or ENUMERATING.
1791 */
1792 for (; it != rejectList.end(); ++it) {
1793 if (oldStatus == *it) {
1794 ALOGV("%s: Rejecting status transition for Camera ID %d, "
1795 " since the source state was was in one of the bad "
1796 " states.", __FUNCTION__, cameraId);
1797 mStatusList[cameraId] = oldStatus;
1798 return;
1799 }
1800 }
1801 }
1802
Igor Murashkinbfc99152013-02-27 12:55:20 -08001803 /**
1804 * ProClients lose their exclusive lock.
1805 * - Done before the CameraClient can initialize the HAL device,
1806 * since we want to be able to close it before they get to initialize
1807 */
1808 if (status == ICameraServiceListener::STATUS_NOT_AVAILABLE) {
1809 Vector<wp<ProClient> > proClients(mProClientList[cameraId]);
1810 Vector<wp<ProClient> >::const_iterator it;
1811
1812 for (it = proClients.begin(); it != proClients.end(); ++it) {
1813 sp<ProClient> proCl = it->promote();
1814 if (proCl.get() != NULL) {
1815 proCl->onExclusiveLockStolen();
1816 }
1817 }
1818 }
1819
1820 Vector<sp<ICameraServiceListener> >::const_iterator it;
1821 for (it = mListenerList.begin(); it != mListenerList.end(); ++it) {
1822 (*it)->onStatusChanged(status, cameraId);
1823 }
1824 }
1825}
1826
Igor Murashkincba2c162013-03-20 15:56:31 -07001827ICameraServiceListener::Status CameraService::getStatus(int cameraId) const {
1828 if (cameraId < 0 || cameraId >= MAX_CAMERAS) {
1829 ALOGE("%s: Invalid camera ID %d", __FUNCTION__, cameraId);
1830 return ICameraServiceListener::STATUS_UNKNOWN;
1831 }
1832
1833 Mutex::Autolock al(mStatusMutex);
1834 return mStatusList[cameraId];
1835}
1836
Mathias Agopian65ab4712010-07-14 17:59:35 -07001837}; // namespace android