Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 | */ |
| 16 | |
| 17 | #define LOG_TAG "CameraProviderManager" |
| 18 | #define ATRACE_TAG ATRACE_TAG_CAMERA |
| 19 | //#define LOG_NDEBUG 0 |
| 20 | |
| 21 | #include "CameraProviderManager.h" |
| 22 | |
| 23 | #include <android/hidl/manager/1.0/IServiceManager.h> |
| 24 | #include <hidl/ServiceManagement.h> |
| 25 | |
| 26 | namespace android { |
| 27 | |
| 28 | using namespace ::android::hardware::camera; |
| 29 | using namespace ::android::hardware::camera::common::V1_0; |
| 30 | |
| 31 | namespace { |
| 32 | // Hardcoded name for the passthrough HAL implementation, since it can't be discovered via the |
| 33 | // service manager |
| 34 | const std::string kLegacyProviderName("legacy/0"); |
| 35 | |
| 36 | // Slash-separated list of provider types to consider for use via the old camera API |
| 37 | const std::string kStandardProviderTypes("internal/legacy"); |
| 38 | |
| 39 | } // anonymous namespace |
| 40 | |
| 41 | CameraProviderManager::HardwareServiceInteractionProxy |
| 42 | CameraProviderManager::sHardwareServiceInteractionProxy{}; |
| 43 | |
| 44 | CameraProviderManager::~CameraProviderManager() { |
| 45 | } |
| 46 | |
| 47 | status_t CameraProviderManager::initialize(wp<CameraProviderManager::StatusListener> listener, |
| 48 | ServiceInteractionProxy* proxy) { |
| 49 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 50 | if (proxy == nullptr) { |
| 51 | ALOGE("%s: No valid service interaction proxy provided", __FUNCTION__); |
| 52 | return BAD_VALUE; |
| 53 | } |
| 54 | mListener = listener; |
| 55 | mServiceProxy = proxy; |
| 56 | |
| 57 | // Registering will trigger notifications for all already-known providers |
| 58 | bool success = mServiceProxy->registerForNotifications( |
| 59 | /* instance name, empty means no filter */ "", |
| 60 | this); |
| 61 | if (!success) { |
| 62 | ALOGE("%s: Unable to register with hardware service manager for notifications " |
| 63 | "about camera providers", __FUNCTION__); |
| 64 | return INVALID_OPERATION; |
| 65 | } |
| 66 | |
| 67 | // Also see if there's a passthrough HAL, but let's not complain if there's not |
| 68 | addProvider(kLegacyProviderName, /*expected*/ false); |
| 69 | |
| 70 | return OK; |
| 71 | } |
| 72 | |
| 73 | int CameraProviderManager::getCameraCount() const { |
| 74 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 75 | int count = 0; |
| 76 | for (auto& provider : mProviders) { |
| 77 | count += provider->mDevices.size(); |
| 78 | } |
| 79 | return count; |
| 80 | } |
| 81 | |
| 82 | int CameraProviderManager::getStandardCameraCount() const { |
| 83 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 84 | int count = 0; |
| 85 | for (auto& provider : mProviders) { |
| 86 | if (kStandardProviderTypes.find(provider->getType()) != std::string::npos) { |
| 87 | count += provider->mDevices.size(); |
| 88 | } |
| 89 | } |
| 90 | return count; |
| 91 | } |
| 92 | |
| 93 | std::vector<std::string> CameraProviderManager::getCameraDeviceIds() const { |
| 94 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 95 | std::vector<std::string> deviceIds; |
| 96 | for (auto& provider : mProviders) { |
| 97 | for (auto& deviceInfo : provider->mDevices) { |
| 98 | deviceIds.push_back(deviceInfo->mId); |
| 99 | } |
| 100 | } |
| 101 | return deviceIds; |
| 102 | } |
| 103 | |
| 104 | bool CameraProviderManager::isValidDevice(const std::string &id, uint16_t majorVersion) const { |
| 105 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 106 | return isValidDeviceLocked(id, majorVersion); |
| 107 | } |
| 108 | |
| 109 | bool CameraProviderManager::isValidDeviceLocked(const std::string &id, uint16_t majorVersion) const { |
| 110 | for (auto& provider : mProviders) { |
| 111 | for (auto& deviceInfo : provider->mDevices) { |
| 112 | if (deviceInfo->mId == id && deviceInfo->mVersion.get_major() == majorVersion) { |
| 113 | return true; |
| 114 | } |
| 115 | } |
| 116 | } |
| 117 | return false; |
| 118 | } |
| 119 | |
| 120 | bool CameraProviderManager::hasFlashUnit(const std::string &id) const { |
| 121 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 122 | |
| 123 | auto deviceInfo = findDeviceInfoLocked(id); |
| 124 | if (deviceInfo == nullptr) return false; |
| 125 | |
| 126 | return deviceInfo->hasFlashUnit(); |
| 127 | } |
| 128 | |
| 129 | status_t CameraProviderManager::getResourceCost(const std::string &id, |
| 130 | CameraResourceCost* cost) const { |
| 131 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 132 | |
| 133 | auto deviceInfo = findDeviceInfoLocked(id); |
| 134 | if (deviceInfo == nullptr) return NAME_NOT_FOUND; |
| 135 | |
| 136 | *cost = deviceInfo->mResourceCost; |
| 137 | return OK; |
| 138 | } |
| 139 | |
| 140 | status_t CameraProviderManager::getCameraInfo(const std::string &id, |
| 141 | hardware::CameraInfo* info) const { |
| 142 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 143 | |
| 144 | auto deviceInfo = findDeviceInfoLocked(id); |
| 145 | if (deviceInfo == nullptr) return NAME_NOT_FOUND; |
| 146 | |
| 147 | return deviceInfo->getCameraInfo(info); |
| 148 | } |
| 149 | |
| 150 | status_t CameraProviderManager::getCameraCharacteristics(const std::string &id, |
| 151 | CameraMetadata* characteristics) const { |
| 152 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 153 | |
Eino-Ville Talvala | 0b1cb14 | 2016-12-19 16:29:17 -0800 | [diff] [blame] | 154 | auto deviceInfo = findDeviceInfoLocked(id, /*minVersion*/ {3,0}, /*maxVersion*/ {4,0}); |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 155 | if (deviceInfo == nullptr) return NAME_NOT_FOUND; |
| 156 | |
| 157 | return deviceInfo->getCameraCharacteristics(characteristics); |
| 158 | } |
| 159 | |
| 160 | status_t CameraProviderManager::getHighestSupportedVersion(const std::string &id, |
| 161 | hardware::hidl_version *v) { |
| 162 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 163 | |
| 164 | hardware::hidl_version maxVersion{0,0}; |
| 165 | bool found = false; |
| 166 | for (auto& provider : mProviders) { |
| 167 | for (auto& deviceInfo : provider->mDevices) { |
| 168 | if (deviceInfo->mId == id) { |
| 169 | if (deviceInfo->mVersion > maxVersion) { |
| 170 | maxVersion = deviceInfo->mVersion; |
| 171 | found = true; |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | } |
| 176 | if (!found) { |
| 177 | return NAME_NOT_FOUND; |
| 178 | } |
| 179 | *v = maxVersion; |
| 180 | return OK; |
| 181 | } |
| 182 | |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 183 | status_t CameraProviderManager::setTorchMode(const std::string &id, bool enabled) { |
| 184 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 185 | |
| 186 | auto deviceInfo = findDeviceInfoLocked(id); |
| 187 | if (deviceInfo == nullptr) return NAME_NOT_FOUND; |
| 188 | |
| 189 | return deviceInfo->setTorchMode(enabled); |
| 190 | } |
| 191 | |
Eino-Ville Talvala | 0b1cb14 | 2016-12-19 16:29:17 -0800 | [diff] [blame] | 192 | status_t CameraProviderManager::openSession(const std::string &id, |
| 193 | const sp<hardware::camera::device::V3_2::ICameraDeviceCallback>& callback, |
| 194 | /*out*/ |
| 195 | sp<hardware::camera::device::V3_2::ICameraDeviceSession> *session) { |
| 196 | |
| 197 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 198 | |
| 199 | auto deviceInfo = findDeviceInfoLocked(id, |
| 200 | /*minVersion*/ {3,0}, /*maxVersion*/ {4,0}); |
| 201 | if (deviceInfo == nullptr) return NAME_NOT_FOUND; |
| 202 | |
| 203 | auto *deviceInfo3 = static_cast<ProviderInfo::DeviceInfo3*>(deviceInfo); |
| 204 | |
| 205 | Status status; |
| 206 | deviceInfo3->mInterface->open(callback, [&status, &session] |
| 207 | (Status s, const sp<device::V3_2::ICameraDeviceSession>& cameraSession) { |
| 208 | status = s; |
| 209 | if (status == Status::OK) { |
| 210 | *session = cameraSession; |
| 211 | } |
| 212 | }); |
| 213 | return mapToStatusT(status); |
| 214 | } |
| 215 | |
| 216 | status_t CameraProviderManager::openSession(const std::string &id, |
| 217 | const sp<hardware::camera::device::V1_0::ICameraDeviceCallback>& callback, |
| 218 | /*out*/ |
| 219 | sp<hardware::camera::device::V1_0::ICameraDevice> *session) { |
| 220 | |
| 221 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 222 | |
| 223 | auto deviceInfo = findDeviceInfoLocked(id, |
| 224 | /*minVersion*/ {1,0}, /*maxVersion*/ {2,0}); |
| 225 | if (deviceInfo == nullptr) return NAME_NOT_FOUND; |
| 226 | |
| 227 | auto *deviceInfo1 = static_cast<ProviderInfo::DeviceInfo1*>(deviceInfo); |
| 228 | |
| 229 | Status status = deviceInfo1->mInterface->open(callback); |
| 230 | if (status == Status::OK) { |
| 231 | *session = deviceInfo1->mInterface; |
| 232 | } |
| 233 | return mapToStatusT(status); |
| 234 | } |
| 235 | |
| 236 | |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 237 | hardware::Return<void> CameraProviderManager::onRegistration( |
| 238 | const hardware::hidl_string& /*fqName*/, |
| 239 | const hardware::hidl_string& name, |
| 240 | bool /*preexisting*/) { |
| 241 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 242 | |
| 243 | addProvider(name); |
| 244 | return hardware::Return<void>(); |
| 245 | } |
| 246 | |
| 247 | status_t CameraProviderManager::dump(int fd, const Vector<String16>& args) { |
| 248 | std::lock_guard<std::mutex> lock(mInterfaceMutex); |
| 249 | |
| 250 | dprintf(fd, "Available camera providers and devices:\n"); |
| 251 | for (auto& provider : mProviders) { |
| 252 | provider->dump(fd, args); |
| 253 | } |
| 254 | return OK; |
| 255 | } |
| 256 | |
| 257 | CameraProviderManager::ProviderInfo::DeviceInfo* CameraProviderManager::findDeviceInfoLocked( |
Eino-Ville Talvala | 0b1cb14 | 2016-12-19 16:29:17 -0800 | [diff] [blame] | 258 | const std::string& id, |
| 259 | hardware::hidl_version minVersion, hardware::hidl_version maxVersion) const { |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 260 | for (auto& provider : mProviders) { |
| 261 | for (auto& deviceInfo : provider->mDevices) { |
Eino-Ville Talvala | 0b1cb14 | 2016-12-19 16:29:17 -0800 | [diff] [blame] | 262 | if (deviceInfo->mId == id && |
| 263 | minVersion <= deviceInfo->mVersion && maxVersion >= deviceInfo->mVersion) { |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 264 | return deviceInfo.get(); |
| 265 | } |
| 266 | } |
| 267 | } |
| 268 | return nullptr; |
| 269 | } |
| 270 | |
| 271 | |
| 272 | status_t CameraProviderManager::addProvider(const std::string& newProvider, bool expected) { |
| 273 | for (const auto& providerInfo : mProviders) { |
| 274 | if (providerInfo->mProviderName == newProvider) { |
| 275 | ALOGW("%s: Camera provider HAL with name '%s' already registered", __FUNCTION__, |
| 276 | newProvider.c_str()); |
| 277 | return ALREADY_EXISTS; |
| 278 | } |
| 279 | } |
| 280 | sp<provider::V2_4::ICameraProvider> interface = |
| 281 | mServiceProxy->getService(newProvider); |
| 282 | |
| 283 | if (interface == nullptr) { |
| 284 | if (expected) { |
| 285 | ALOGW("%s: Camera provider HAL '%s' is not actually available", __FUNCTION__, |
| 286 | newProvider.c_str()); |
| 287 | return BAD_VALUE; |
| 288 | } else { |
| 289 | // Not guaranteed to be found, so not an error if it wasn't |
| 290 | return OK; |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | sp<ProviderInfo> providerInfo = |
| 295 | new ProviderInfo(newProvider, interface, this); |
| 296 | status_t res = providerInfo->initialize(); |
| 297 | if (res != OK) { |
| 298 | return res; |
| 299 | } |
| 300 | |
| 301 | mProviders.push_back(providerInfo); |
| 302 | |
| 303 | return OK; |
| 304 | } |
| 305 | |
| 306 | status_t CameraProviderManager::removeProvider(const std::string& provider) { |
| 307 | for (auto it = mProviders.begin(); it != mProviders.end(); it++) { |
| 308 | if ((*it)->mProviderName == provider) { |
| 309 | mProviders.erase(it); |
| 310 | return OK; |
| 311 | } |
| 312 | } |
| 313 | ALOGW("%s: Camera provider HAL with name '%s' is not registered", __FUNCTION__, |
| 314 | provider.c_str()); |
| 315 | return NAME_NOT_FOUND; |
| 316 | } |
| 317 | |
| 318 | /**** Methods for ProviderInfo ****/ |
| 319 | |
| 320 | |
| 321 | CameraProviderManager::ProviderInfo::ProviderInfo( |
| 322 | const std::string &providerName, |
| 323 | sp<provider::V2_4::ICameraProvider>& interface, |
| 324 | CameraProviderManager *manager) : |
| 325 | mProviderName(providerName), |
| 326 | mInterface(interface), |
| 327 | mManager(manager) { |
| 328 | (void) mManager; |
| 329 | } |
| 330 | |
| 331 | status_t CameraProviderManager::ProviderInfo::initialize() { |
| 332 | status_t res = parseProviderName(mProviderName, &mType, &mId); |
| 333 | if (res != OK) { |
| 334 | ALOGE("%s: Invalid provider name, ignoring", __FUNCTION__); |
| 335 | return BAD_VALUE; |
| 336 | } |
| 337 | ALOGI("Connecting to new camera provider: %s", mProviderName.c_str()); |
| 338 | Status status = mInterface->setCallback(this); |
| 339 | if (status != Status::OK) { |
| 340 | ALOGE("%s: Unable to register callbacks with camera provider '%s'", |
| 341 | __FUNCTION__, mProviderName.c_str()); |
| 342 | return mapToStatusT(status); |
| 343 | } |
| 344 | // TODO: Register for hw binder death notifications as well |
| 345 | |
| 346 | // Get initial list of camera devices, if any |
| 347 | std::vector<std::string> devices; |
| 348 | mInterface->getCameraIdList([&status, &devices]( |
| 349 | Status idStatus, |
| 350 | const hardware::hidl_vec<hardware::hidl_string>& cameraDeviceNames) { |
| 351 | status = idStatus; |
| 352 | if (status == Status::OK) { |
| 353 | for (size_t i = 0; i < cameraDeviceNames.size(); i++) { |
| 354 | devices.push_back(cameraDeviceNames[i]); |
| 355 | } |
| 356 | } }); |
| 357 | |
| 358 | if (status != Status::OK) { |
| 359 | ALOGE("%s: Unable to query for camera devices from provider '%s'", |
| 360 | __FUNCTION__, mProviderName.c_str()); |
| 361 | return mapToStatusT(status); |
| 362 | } |
| 363 | |
| 364 | for (auto& device : devices) { |
| 365 | status_t res = addDevice(device); |
| 366 | if (res != OK) { |
| 367 | ALOGE("%s: Unable to enumerate camera device '%s': %s (%d)", |
| 368 | __FUNCTION__, device.c_str(), strerror(-res), res); |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | ALOGI("Camera provider %s ready with %zu camera devices", |
| 373 | mProviderName.c_str(), mDevices.size()); |
| 374 | |
| 375 | return OK; |
| 376 | } |
| 377 | |
| 378 | const std::string& CameraProviderManager::ProviderInfo::getType() const { |
| 379 | return mType; |
| 380 | } |
| 381 | |
| 382 | status_t CameraProviderManager::ProviderInfo::addDevice(const std::string& name, |
| 383 | CameraDeviceStatus initialStatus, /*out*/ std::string* parsedId) { |
| 384 | |
| 385 | ALOGI("Enumerating new camera device: %s", name.c_str()); |
| 386 | |
| 387 | uint16_t major, minor; |
| 388 | std::string type, id; |
| 389 | |
| 390 | status_t res = parseDeviceName(name, &major, &minor, &type, &id); |
| 391 | if (res != OK) { |
| 392 | return res; |
| 393 | } |
| 394 | if (type != mType) { |
| 395 | ALOGE("%s: Device type %s does not match provider type %s", __FUNCTION__, |
| 396 | type.c_str(), mType.c_str()); |
| 397 | return BAD_VALUE; |
| 398 | } |
| 399 | if (mManager->isValidDeviceLocked(id, major)) { |
| 400 | ALOGE("%s: Device %s: ID %s is already in use for device major version %d", __FUNCTION__, |
| 401 | name.c_str(), id.c_str(), major); |
| 402 | return BAD_VALUE; |
| 403 | } |
| 404 | |
| 405 | std::unique_ptr<DeviceInfo> deviceInfo; |
| 406 | switch (major) { |
| 407 | case 1: |
| 408 | deviceInfo = initializeDeviceInfo<DeviceInfo1>(name, id, minor); |
| 409 | break; |
| 410 | case 3: |
| 411 | deviceInfo = initializeDeviceInfo<DeviceInfo3>(name, id, minor); |
| 412 | break; |
| 413 | default: |
| 414 | ALOGE("%s: Device %s: Unknown HIDL device HAL major version %d:", __FUNCTION__, |
| 415 | name.c_str(), major); |
| 416 | return BAD_VALUE; |
| 417 | } |
| 418 | if (deviceInfo == nullptr) return BAD_VALUE; |
| 419 | deviceInfo->mStatus = initialStatus; |
| 420 | |
| 421 | mDevices.push_back(std::move(deviceInfo)); |
| 422 | |
| 423 | if (parsedId != nullptr) { |
| 424 | *parsedId = id; |
| 425 | } |
| 426 | return OK; |
| 427 | } |
| 428 | |
| 429 | status_t CameraProviderManager::ProviderInfo::dump(int fd, const Vector<String16>&) const { |
Yin-Chia Yeh | 52778d4 | 2016-12-22 18:20:43 -0800 | [diff] [blame] | 430 | dprintf(fd, " %s: %zu devices:\n", mProviderName.c_str(), mDevices.size()); |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 431 | |
| 432 | for (auto& device : mDevices) { |
| 433 | dprintf(fd, " %s: Resource cost: %d\n", device->mName.c_str(), |
| 434 | device->mResourceCost.resourceCost); |
| 435 | if (device->mResourceCost.conflictingDevices.size() > 0) { |
| 436 | dprintf(fd, " Conflicting devices:\n"); |
| 437 | for (size_t i = 0; i < device->mResourceCost.conflictingDevices.size(); i++) { |
| 438 | dprintf(fd, " %s\n", |
| 439 | device->mResourceCost.conflictingDevices[i].c_str()); |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | return OK; |
| 444 | } |
| 445 | |
| 446 | hardware::Return<void> CameraProviderManager::ProviderInfo::cameraDeviceStatusChange( |
| 447 | const hardware::hidl_string& cameraDeviceName, |
| 448 | CameraDeviceStatus newStatus) { |
| 449 | sp<StatusListener> listener; |
| 450 | std::string id; |
| 451 | { |
Yin-Chia Yeh | 52778d4 | 2016-12-22 18:20:43 -0800 | [diff] [blame] | 452 | std::lock_guard<std::mutex> lock(mManager->mStatusListenerMutex); |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 453 | bool known = false; |
| 454 | for (auto& deviceInfo : mDevices) { |
| 455 | if (deviceInfo->mName == cameraDeviceName) { |
| 456 | ALOGI("Camera device %s status is now %s, was %s", cameraDeviceName.c_str(), |
| 457 | deviceStatusToString(newStatus), deviceStatusToString(deviceInfo->mStatus)); |
| 458 | deviceInfo->mStatus = newStatus; |
| 459 | // TODO: Handle device removal (NOT_PRESENT) |
| 460 | id = deviceInfo->mId; |
| 461 | known = true; |
| 462 | break; |
| 463 | } |
| 464 | } |
| 465 | // Previously unseen device; status must not be NOT_PRESENT |
| 466 | if (!known) { |
| 467 | if (newStatus == CameraDeviceStatus::NOT_PRESENT) { |
| 468 | ALOGW("Camera provider %s says an unknown camera device %s is not present. Curious.", |
| 469 | mProviderName.c_str(), cameraDeviceName.c_str()); |
| 470 | return hardware::Void(); |
| 471 | } |
| 472 | addDevice(cameraDeviceName, newStatus, &id); |
| 473 | } |
| 474 | listener = mManager->mListener.promote(); |
| 475 | } |
| 476 | // Call without lock held to allow reentrancy into provider manager |
| 477 | if (listener != nullptr) { |
| 478 | listener->onDeviceStatusChanged(String8(id.c_str()), newStatus); |
| 479 | } |
| 480 | return hardware::Void(); |
| 481 | } |
| 482 | |
| 483 | hardware::Return<void> CameraProviderManager::ProviderInfo::torchModeStatusChange( |
| 484 | const hardware::hidl_string& cameraDeviceName, |
| 485 | TorchModeStatus newStatus) { |
| 486 | sp<StatusListener> listener; |
| 487 | std::string id; |
| 488 | { |
Yin-Chia Yeh | 52778d4 | 2016-12-22 18:20:43 -0800 | [diff] [blame] | 489 | std::lock_guard<std::mutex> lock(mManager->mStatusListenerMutex); |
Eino-Ville Talvala | 2f09bac | 2016-12-13 11:29:54 -0800 | [diff] [blame] | 490 | bool known = false; |
| 491 | for (auto& deviceInfo : mDevices) { |
| 492 | if (deviceInfo->mName == cameraDeviceName) { |
| 493 | ALOGI("Camera device %s torch status is now %s", cameraDeviceName.c_str(), |
| 494 | torchStatusToString(newStatus)); |
| 495 | id = deviceInfo->mId; |
| 496 | known = true; |
| 497 | break; |
| 498 | } |
| 499 | } |
| 500 | if (!known) { |
| 501 | ALOGW("Camera provider %s says an unknown camera %s now has torch status %d. Curious.", |
| 502 | mProviderName.c_str(), cameraDeviceName.c_str(), newStatus); |
| 503 | return hardware::Void(); |
| 504 | } |
| 505 | listener = mManager->mListener.promote(); |
| 506 | } |
| 507 | // Call without lock held to allow reentrancy into provider manager |
| 508 | if (listener != nullptr) { |
| 509 | listener->onTorchStatusChanged(String8(id.c_str()), newStatus); |
| 510 | } |
| 511 | return hardware::Void(); |
| 512 | } |
| 513 | |
| 514 | |
| 515 | template<class DeviceInfoT> |
| 516 | std::unique_ptr<CameraProviderManager::ProviderInfo::DeviceInfo> |
| 517 | CameraProviderManager::ProviderInfo::initializeDeviceInfo( |
| 518 | const std::string &name, |
| 519 | const std::string &id, uint16_t minorVersion) const { |
| 520 | Status status; |
| 521 | |
| 522 | auto cameraInterface = |
| 523 | getDeviceInterface<typename DeviceInfoT::InterfaceT>(name); |
| 524 | if (cameraInterface == nullptr) return nullptr; |
| 525 | |
| 526 | CameraResourceCost resourceCost; |
| 527 | cameraInterface->getResourceCost([&status, &resourceCost]( |
| 528 | Status s, CameraResourceCost cost) { |
| 529 | status = s; |
| 530 | resourceCost = cost; |
| 531 | }); |
| 532 | if (status != Status::OK) { |
| 533 | ALOGE("%s: Unable to obtain resource costs for camera device %s: %s", __FUNCTION__, |
| 534 | name.c_str(), statusToString(status)); |
| 535 | return nullptr; |
| 536 | } |
| 537 | return std::unique_ptr<DeviceInfo>( |
| 538 | new DeviceInfoT(name, id, minorVersion, resourceCost, cameraInterface)); |
| 539 | } |
| 540 | |
| 541 | template<class InterfaceT> |
| 542 | sp<InterfaceT> |
| 543 | CameraProviderManager::ProviderInfo::getDeviceInterface(const std::string &name) const { |
| 544 | ALOGE("%s: Device %s: Unknown HIDL device HAL major version %d:", __FUNCTION__, |
| 545 | name.c_str(), InterfaceT::version.get_major()); |
| 546 | return nullptr; |
| 547 | } |
| 548 | |
| 549 | template<> |
| 550 | sp<device::V1_0::ICameraDevice> |
| 551 | CameraProviderManager::ProviderInfo::getDeviceInterface |
| 552 | <device::V1_0::ICameraDevice>(const std::string &name) const { |
| 553 | Status status; |
| 554 | sp<device::V1_0::ICameraDevice> cameraInterface; |
| 555 | mInterface->getCameraDeviceInterface_V1_x(name, [&status, &cameraInterface]( |
| 556 | Status s, sp<device::V1_0::ICameraDevice> interface) { |
| 557 | status = s; |
| 558 | cameraInterface = interface; |
| 559 | }); |
| 560 | if (status != Status::OK) { |
| 561 | ALOGE("%s: Unable to obtain interface for camera device %s: %s", __FUNCTION__, |
| 562 | name.c_str(), statusToString(status)); |
| 563 | return nullptr; |
| 564 | } |
| 565 | return cameraInterface; |
| 566 | } |
| 567 | |
| 568 | template<> |
| 569 | sp<device::V3_2::ICameraDevice> |
| 570 | CameraProviderManager::ProviderInfo::getDeviceInterface |
| 571 | <device::V3_2::ICameraDevice>(const std::string &name) const { |
| 572 | Status status; |
| 573 | sp<device::V3_2::ICameraDevice> cameraInterface; |
| 574 | mInterface->getCameraDeviceInterface_V3_x(name, [&status, &cameraInterface]( |
| 575 | Status s, sp<device::V3_2::ICameraDevice> interface) { |
| 576 | status = s; |
| 577 | cameraInterface = interface; |
| 578 | }); |
| 579 | if (status != Status::OK) { |
| 580 | ALOGE("%s: Unable to obtain interface for camera device %s: %s", __FUNCTION__, |
| 581 | name.c_str(), statusToString(status)); |
| 582 | return nullptr; |
| 583 | } |
| 584 | return cameraInterface; |
| 585 | } |
| 586 | |
| 587 | CameraProviderManager::ProviderInfo::DeviceInfo::~DeviceInfo() {} |
| 588 | |
| 589 | template<class InterfaceT> |
| 590 | status_t CameraProviderManager::ProviderInfo::DeviceInfo::setTorchMode(InterfaceT& interface, |
| 591 | bool enabled) { |
| 592 | Status s = interface->setTorchMode(enabled ? TorchMode::ON : TorchMode::OFF); |
| 593 | return mapToStatusT(s); |
| 594 | } |
| 595 | |
| 596 | CameraProviderManager::ProviderInfo::DeviceInfo1::DeviceInfo1(const std::string& name, |
| 597 | const std::string &id, |
| 598 | uint16_t minorVersion, |
| 599 | const CameraResourceCost& resourceCost, |
| 600 | sp<InterfaceT> interface) : |
| 601 | DeviceInfo(name, id, hardware::hidl_version{1, minorVersion}, resourceCost), |
| 602 | mInterface(interface) { |
| 603 | // Get default parameters and initialize flash unit availability |
| 604 | // Requires powering on the camera device |
| 605 | Status status = mInterface->open(nullptr); |
| 606 | if (status != Status::OK) { |
| 607 | ALOGE("%s: Unable to open camera device %s to check for a flash unit: %s (%d)", __FUNCTION__, |
| 608 | mId.c_str(), CameraProviderManager::statusToString(status), status); |
| 609 | return; |
| 610 | } |
| 611 | mInterface->getParameters([this](const hardware::hidl_string& parms) { |
| 612 | mDefaultParameters.unflatten(String8(parms.c_str())); |
| 613 | }); |
| 614 | |
| 615 | const char *flashMode = |
| 616 | mDefaultParameters.get(CameraParameters::KEY_SUPPORTED_FLASH_MODES); |
| 617 | if (flashMode && strstr(flashMode, CameraParameters::FLASH_MODE_TORCH)) { |
| 618 | mHasFlashUnit = true; |
| 619 | } else { |
| 620 | mHasFlashUnit = false; |
| 621 | } |
| 622 | |
| 623 | mInterface->close(); |
| 624 | } |
| 625 | |
| 626 | CameraProviderManager::ProviderInfo::DeviceInfo1::~DeviceInfo1() {} |
| 627 | |
| 628 | status_t CameraProviderManager::ProviderInfo::DeviceInfo1::setTorchMode(bool enabled) { |
| 629 | return DeviceInfo::setTorchMode(mInterface, enabled); |
| 630 | } |
| 631 | |
| 632 | status_t CameraProviderManager::ProviderInfo::DeviceInfo1::getCameraInfo( |
| 633 | hardware::CameraInfo *info) const { |
| 634 | if (info == nullptr) return BAD_VALUE; |
| 635 | |
| 636 | Status status; |
| 637 | device::V1_0::CameraInfo cInfo; |
| 638 | mInterface->getCameraInfo([&status, &cInfo](Status s, device::V1_0::CameraInfo camInfo) { |
| 639 | status = s; |
| 640 | cInfo = camInfo; |
| 641 | }); |
| 642 | if (status != Status::OK) { |
| 643 | return mapToStatusT(status); |
| 644 | } |
| 645 | |
| 646 | switch(cInfo.facing) { |
| 647 | case device::V1_0::CameraFacing::BACK: |
| 648 | info->facing = hardware::CAMERA_FACING_BACK; |
| 649 | break; |
| 650 | case device::V1_0::CameraFacing::EXTERNAL: |
| 651 | // Map external to front for legacy API |
| 652 | case device::V1_0::CameraFacing::FRONT: |
| 653 | info->facing = hardware::CAMERA_FACING_FRONT; |
| 654 | break; |
| 655 | default: |
| 656 | ALOGW("%s: Unknown camera facing: %d", __FUNCTION__, cInfo.facing); |
| 657 | info->facing = hardware::CAMERA_FACING_BACK; |
| 658 | } |
| 659 | info->orientation = cInfo.orientation; |
| 660 | |
| 661 | return OK; |
| 662 | } |
| 663 | |
| 664 | CameraProviderManager::ProviderInfo::DeviceInfo3::DeviceInfo3(const std::string& name, |
| 665 | const std::string &id, |
| 666 | uint16_t minorVersion, |
| 667 | const CameraResourceCost& resourceCost, |
| 668 | sp<InterfaceT> interface) : |
| 669 | DeviceInfo(name, id, hardware::hidl_version{3, minorVersion}, resourceCost), |
| 670 | mInterface(interface) { |
| 671 | // Get camera characteristics and initialize flash unit availability |
| 672 | Status status; |
| 673 | mInterface->getCameraCharacteristics([&status, this](Status s, |
| 674 | device::V3_2::CameraMetadata metadata) { |
| 675 | status = s; |
| 676 | if (s == Status::OK) { |
| 677 | camera_metadata_t *buffer = |
| 678 | reinterpret_cast<camera_metadata_t*>(metadata.data()); |
| 679 | mCameraCharacteristics = buffer; |
| 680 | } |
| 681 | }); |
| 682 | if (status != Status::OK) { |
| 683 | ALOGE("%s: Unable to get camera characteristics for device %s: %s (%d)", |
| 684 | __FUNCTION__, mId.c_str(), CameraProviderManager::statusToString(status), status); |
| 685 | return; |
| 686 | } |
| 687 | camera_metadata_entry flashAvailable = |
| 688 | mCameraCharacteristics.find(ANDROID_FLASH_INFO_AVAILABLE); |
| 689 | if (flashAvailable.count == 1 && |
| 690 | flashAvailable.data.u8[0] == ANDROID_FLASH_INFO_AVAILABLE_TRUE) { |
| 691 | mHasFlashUnit = true; |
| 692 | } else { |
| 693 | mHasFlashUnit = false; |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | CameraProviderManager::ProviderInfo::DeviceInfo3::~DeviceInfo3() {} |
| 698 | |
| 699 | status_t CameraProviderManager::ProviderInfo::DeviceInfo3::setTorchMode(bool enabled) { |
| 700 | return DeviceInfo::setTorchMode(mInterface, enabled); |
| 701 | } |
| 702 | |
| 703 | status_t CameraProviderManager::ProviderInfo::DeviceInfo3::getCameraInfo( |
| 704 | hardware::CameraInfo *info) const { |
| 705 | if (info == nullptr) return BAD_VALUE; |
| 706 | |
| 707 | camera_metadata_ro_entry facing = |
| 708 | mCameraCharacteristics.find(ANDROID_LENS_FACING); |
| 709 | if (facing.count == 1) { |
| 710 | switch (facing.data.u8[0]) { |
| 711 | case ANDROID_LENS_FACING_BACK: |
| 712 | info->facing = hardware::CAMERA_FACING_BACK; |
| 713 | break; |
| 714 | case ANDROID_LENS_FACING_EXTERNAL: |
| 715 | // Map external to front for legacy API |
| 716 | case ANDROID_LENS_FACING_FRONT: |
| 717 | info->facing = hardware::CAMERA_FACING_FRONT; |
| 718 | break; |
| 719 | } |
| 720 | } else { |
| 721 | ALOGE("%s: Unable to find android.lens.facing static metadata", __FUNCTION__); |
| 722 | return NAME_NOT_FOUND; |
| 723 | } |
| 724 | |
| 725 | camera_metadata_ro_entry orientation = |
| 726 | mCameraCharacteristics.find(ANDROID_SENSOR_ORIENTATION); |
| 727 | if (orientation.count == 1) { |
| 728 | info->orientation = orientation.data.i32[0]; |
| 729 | } else { |
| 730 | ALOGE("%s: Unable to find android.sensor.orientation static metadata", __FUNCTION__); |
| 731 | return NAME_NOT_FOUND; |
| 732 | } |
| 733 | |
| 734 | return OK; |
| 735 | } |
| 736 | |
| 737 | status_t CameraProviderManager::ProviderInfo::DeviceInfo3::getCameraCharacteristics( |
| 738 | CameraMetadata *characteristics) const { |
| 739 | if (characteristics == nullptr) return BAD_VALUE; |
| 740 | |
| 741 | *characteristics = mCameraCharacteristics; |
| 742 | return OK; |
| 743 | } |
| 744 | |
| 745 | status_t CameraProviderManager::ProviderInfo::parseProviderName(const std::string& name, |
| 746 | std::string *type, uint32_t *id) { |
| 747 | // Format must be "<type>/<id>" |
| 748 | #define ERROR_MSG_PREFIX "%s: Invalid provider name '%s'. " \ |
| 749 | "Should match '<type>/<id>' - " |
| 750 | |
| 751 | if (!type || !id) return INVALID_OPERATION; |
| 752 | |
| 753 | std::string::size_type slashIdx = name.find('/'); |
| 754 | if (slashIdx == std::string::npos || slashIdx == name.size() - 1) { |
| 755 | ALOGE(ERROR_MSG_PREFIX |
| 756 | "does not have / separator between type and id", |
| 757 | __FUNCTION__, name.c_str()); |
| 758 | return BAD_VALUE; |
| 759 | } |
| 760 | |
| 761 | std::string typeVal = name.substr(0, slashIdx); |
| 762 | |
| 763 | char *endPtr; |
| 764 | errno = 0; |
| 765 | long idVal = strtol(name.c_str() + slashIdx + 1, &endPtr, 10); |
| 766 | if (errno != 0) { |
| 767 | ALOGE(ERROR_MSG_PREFIX |
| 768 | "cannot parse provider id as an integer: %s (%d)", |
| 769 | __FUNCTION__, name.c_str(), strerror(errno), errno); |
| 770 | return BAD_VALUE; |
| 771 | } |
| 772 | if (endPtr != name.c_str() + name.size()) { |
| 773 | ALOGE(ERROR_MSG_PREFIX |
| 774 | "provider id has unexpected length", |
| 775 | __FUNCTION__, name.c_str()); |
| 776 | return BAD_VALUE; |
| 777 | } |
| 778 | if (idVal < 0) { |
| 779 | ALOGE(ERROR_MSG_PREFIX |
| 780 | "id is negative: %ld", |
| 781 | __FUNCTION__, name.c_str(), idVal); |
| 782 | return BAD_VALUE; |
| 783 | } |
| 784 | |
| 785 | #undef ERROR_MSG_PREFIX |
| 786 | |
| 787 | *type = typeVal; |
| 788 | *id = static_cast<uint32_t>(idVal); |
| 789 | |
| 790 | return OK; |
| 791 | } |
| 792 | |
| 793 | status_t CameraProviderManager::ProviderInfo::parseDeviceName(const std::string& name, |
| 794 | uint16_t *major, uint16_t *minor, std::string *type, std::string *id) { |
| 795 | |
| 796 | // Format must be "device@<major>.<minor>/<type>/<id>" |
| 797 | |
| 798 | #define ERROR_MSG_PREFIX "%s: Invalid device name '%s'. " \ |
| 799 | "Should match 'device@<major>.<minor>/<type>/<id>' - " |
| 800 | |
| 801 | if (!major || !minor || !type || !id) return INVALID_OPERATION; |
| 802 | |
| 803 | // Verify starting prefix |
| 804 | const char expectedPrefix[] = "device@"; |
| 805 | |
| 806 | if (name.find(expectedPrefix) != 0) { |
| 807 | ALOGE(ERROR_MSG_PREFIX |
| 808 | "does not start with '%s'", |
| 809 | __FUNCTION__, name.c_str(), expectedPrefix); |
| 810 | return BAD_VALUE; |
| 811 | } |
| 812 | |
| 813 | // Extract major/minor versions |
| 814 | constexpr std::string::size_type atIdx = sizeof(expectedPrefix) - 2; |
| 815 | std::string::size_type dotIdx = name.find('.', atIdx); |
| 816 | if (dotIdx == std::string::npos) { |
| 817 | ALOGE(ERROR_MSG_PREFIX |
| 818 | "does not have @<major>. version section", |
| 819 | __FUNCTION__, name.c_str()); |
| 820 | return BAD_VALUE; |
| 821 | } |
| 822 | std::string::size_type typeSlashIdx = name.find('/', dotIdx); |
| 823 | if (typeSlashIdx == std::string::npos) { |
| 824 | ALOGE(ERROR_MSG_PREFIX |
| 825 | "does not have .<minor>/ version section", |
| 826 | __FUNCTION__, name.c_str()); |
| 827 | return BAD_VALUE; |
| 828 | } |
| 829 | |
| 830 | char *endPtr; |
| 831 | errno = 0; |
| 832 | long majorVal = strtol(name.c_str() + atIdx + 1, &endPtr, 10); |
| 833 | if (errno != 0) { |
| 834 | ALOGE(ERROR_MSG_PREFIX |
| 835 | "cannot parse major version: %s (%d)", |
| 836 | __FUNCTION__, name.c_str(), strerror(errno), errno); |
| 837 | return BAD_VALUE; |
| 838 | } |
| 839 | if (endPtr != name.c_str() + dotIdx) { |
| 840 | ALOGE(ERROR_MSG_PREFIX |
| 841 | "major version has unexpected length", |
| 842 | __FUNCTION__, name.c_str()); |
| 843 | return BAD_VALUE; |
| 844 | } |
| 845 | long minorVal = strtol(name.c_str() + dotIdx + 1, &endPtr, 10); |
| 846 | if (errno != 0) { |
| 847 | ALOGE(ERROR_MSG_PREFIX |
| 848 | "cannot parse minor version: %s (%d)", |
| 849 | __FUNCTION__, name.c_str(), strerror(errno), errno); |
| 850 | return BAD_VALUE; |
| 851 | } |
| 852 | if (endPtr != name.c_str() + typeSlashIdx) { |
| 853 | ALOGE(ERROR_MSG_PREFIX |
| 854 | "minor version has unexpected length", |
| 855 | __FUNCTION__, name.c_str()); |
| 856 | return BAD_VALUE; |
| 857 | } |
| 858 | if (majorVal < 0 || majorVal > UINT16_MAX || minorVal < 0 || minorVal > UINT16_MAX) { |
| 859 | ALOGE(ERROR_MSG_PREFIX |
| 860 | "major/minor version is out of range of uint16_t: %ld.%ld", |
| 861 | __FUNCTION__, name.c_str(), majorVal, minorVal); |
| 862 | return BAD_VALUE; |
| 863 | } |
| 864 | |
| 865 | // Extract type and id |
| 866 | |
| 867 | std::string::size_type instanceSlashIdx = name.find('/', typeSlashIdx + 1); |
| 868 | if (instanceSlashIdx == std::string::npos) { |
| 869 | ALOGE(ERROR_MSG_PREFIX |
| 870 | "does not have /<type>/ component", |
| 871 | __FUNCTION__, name.c_str()); |
| 872 | return BAD_VALUE; |
| 873 | } |
| 874 | std::string typeVal = name.substr(typeSlashIdx + 1, instanceSlashIdx - typeSlashIdx - 1); |
| 875 | |
| 876 | if (instanceSlashIdx == name.size() - 1) { |
| 877 | ALOGE(ERROR_MSG_PREFIX |
| 878 | "does not have an /<id> component", |
| 879 | __FUNCTION__, name.c_str()); |
| 880 | return BAD_VALUE; |
| 881 | } |
| 882 | std::string idVal = name.substr(instanceSlashIdx + 1); |
| 883 | |
| 884 | #undef ERROR_MSG_PREFIX |
| 885 | |
| 886 | *major = static_cast<uint16_t>(majorVal); |
| 887 | *minor = static_cast<uint16_t>(minorVal); |
| 888 | *type = typeVal; |
| 889 | *id = idVal; |
| 890 | |
| 891 | return OK; |
| 892 | } |
| 893 | |
| 894 | |
| 895 | |
| 896 | CameraProviderManager::ProviderInfo::~ProviderInfo() { |
| 897 | // Destruction of ProviderInfo is only supposed to happen when the respective |
| 898 | // CameraProvider interface dies, so do not unregister callbacks. |
| 899 | |
| 900 | } |
| 901 | |
| 902 | status_t CameraProviderManager::mapToStatusT(const Status& s) { |
| 903 | switch(s) { |
| 904 | case Status::OK: |
| 905 | return OK; |
| 906 | case Status::ILLEGAL_ARGUMENT: |
| 907 | return BAD_VALUE; |
| 908 | case Status::CAMERA_IN_USE: |
| 909 | return -EBUSY; |
| 910 | case Status::MAX_CAMERAS_IN_USE: |
| 911 | return -EUSERS; |
| 912 | case Status::METHOD_NOT_SUPPORTED: |
| 913 | return UNKNOWN_TRANSACTION; |
| 914 | case Status::OPERATION_NOT_SUPPORTED: |
| 915 | return INVALID_OPERATION; |
| 916 | case Status::CAMERA_DISCONNECTED: |
| 917 | return DEAD_OBJECT; |
| 918 | case Status::INTERNAL_ERROR: |
| 919 | return INVALID_OPERATION; |
| 920 | } |
| 921 | ALOGW("Unexpected HAL status code %d", s); |
| 922 | return INVALID_OPERATION; |
| 923 | } |
| 924 | |
| 925 | const char* CameraProviderManager::statusToString(const Status& s) { |
| 926 | switch(s) { |
| 927 | case Status::OK: |
| 928 | return "OK"; |
| 929 | case Status::ILLEGAL_ARGUMENT: |
| 930 | return "ILLEGAL_ARGUMENT"; |
| 931 | case Status::CAMERA_IN_USE: |
| 932 | return "CAMERA_IN_USE"; |
| 933 | case Status::MAX_CAMERAS_IN_USE: |
| 934 | return "MAX_CAMERAS_IN_USE"; |
| 935 | case Status::METHOD_NOT_SUPPORTED: |
| 936 | return "METHOD_NOT_SUPPORTED"; |
| 937 | case Status::OPERATION_NOT_SUPPORTED: |
| 938 | return "OPERATION_NOT_SUPPORTED"; |
| 939 | case Status::CAMERA_DISCONNECTED: |
| 940 | return "CAMERA_DISCONNECTED"; |
| 941 | case Status::INTERNAL_ERROR: |
| 942 | return "INTERNAL_ERROR"; |
| 943 | } |
| 944 | ALOGW("Unexpected HAL status code %d", s); |
| 945 | return "UNKNOWN_ERROR"; |
| 946 | } |
| 947 | |
| 948 | const char* CameraProviderManager::deviceStatusToString(const CameraDeviceStatus& s) { |
| 949 | switch(s) { |
| 950 | case CameraDeviceStatus::NOT_PRESENT: |
| 951 | return "NOT_PRESENT"; |
| 952 | case CameraDeviceStatus::PRESENT: |
| 953 | return "PRESENT"; |
| 954 | case CameraDeviceStatus::ENUMERATING: |
| 955 | return "ENUMERATING"; |
| 956 | } |
| 957 | ALOGW("Unexpected HAL device status code %d", s); |
| 958 | return "UNKNOWN_STATUS"; |
| 959 | } |
| 960 | |
| 961 | const char* CameraProviderManager::torchStatusToString(const TorchModeStatus& s) { |
| 962 | switch(s) { |
| 963 | case TorchModeStatus::NOT_AVAILABLE: |
| 964 | return "NOT_AVAILABLE"; |
| 965 | case TorchModeStatus::AVAILABLE_OFF: |
| 966 | return "AVAILABLE_OFF"; |
| 967 | case TorchModeStatus::AVAILABLE_ON: |
| 968 | return "AVAILABLE_ON"; |
| 969 | } |
| 970 | ALOGW("Unexpected HAL torch mode status code %d", s); |
| 971 | return "UNKNOWN_STATUS"; |
| 972 | } |
| 973 | |
| 974 | } // namespace android |