| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "CamProvider@2.4-impl" |
| //#define LOG_NDEBUG 0 |
| #include <android/log.h> |
| |
| #include "CameraProvider.h" |
| #include "CameraDevice_1_0.h" |
| #include "CameraDevice_3_3.h" |
| #include <cutils/properties.h> |
| #include <string.h> |
| #include <utils/Trace.h> |
| |
| |
| namespace android { |
| namespace hardware { |
| namespace camera { |
| namespace provider { |
| namespace V2_4 { |
| namespace implementation { |
| |
| namespace { |
| const char *kLegacyProviderName = "legacy/0"; |
| // "device@<version>/legacy/<id>" |
| const std::regex kDeviceNameRE("device@([0-9]+\\.[0-9]+)/legacy/(.+)"); |
| const char *kHAL3_2 = "3.2"; |
| const char *kHAL3_3 = "3.3"; |
| const char *kHAL1_0 = "1.0"; |
| const int kMaxCameraDeviceNameLen = 128; |
| const int kMaxCameraIdLen = 16; |
| |
| bool matchDeviceName(const hidl_string& deviceName, std::string* deviceVersion, |
| std::string* cameraId) { |
| std::string deviceNameStd(deviceName.c_str()); |
| std::smatch sm; |
| if (std::regex_match(deviceNameStd, sm, kDeviceNameRE)) { |
| if (deviceVersion != nullptr) { |
| *deviceVersion = sm[1]; |
| } |
| if (cameraId != nullptr) { |
| *cameraId = sm[2]; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| } // anonymous namespace |
| |
| using ::android::hardware::camera::common::V1_0::CameraMetadataType; |
| using ::android::hardware::camera::common::V1_0::Status; |
| |
| /** |
| * static callback forwarding methods from HAL to instance |
| */ |
| void CameraProvider::sCameraDeviceStatusChange( |
| const struct camera_module_callbacks* callbacks, |
| int camera_id, |
| int new_status) { |
| CameraProvider* cp = const_cast<CameraProvider*>( |
| static_cast<const CameraProvider*>(callbacks)); |
| |
| if (cp == nullptr) { |
| ALOGE("%s: callback ops is null", __FUNCTION__); |
| return; |
| } |
| |
| Mutex::Autolock _l(cp->mCbLock); |
| char cameraId[kMaxCameraIdLen]; |
| snprintf(cameraId, sizeof(cameraId), "%d", camera_id); |
| std::string cameraIdStr(cameraId); |
| cp->mCameraStatusMap[cameraIdStr] = (camera_device_status_t) new_status; |
| if (cp->mCallbacks != nullptr) { |
| CameraDeviceStatus status = (CameraDeviceStatus) new_status; |
| for (auto const& deviceNamePair : cp->mCameraDeviceNames) { |
| if (cameraIdStr.compare(deviceNamePair.first) == 0) { |
| cp->mCallbacks->cameraDeviceStatusChange( |
| deviceNamePair.second, status); |
| } |
| } |
| } |
| } |
| |
| void CameraProvider::sTorchModeStatusChange( |
| const struct camera_module_callbacks* callbacks, |
| const char* camera_id, |
| int new_status) { |
| CameraProvider* cp = const_cast<CameraProvider*>( |
| static_cast<const CameraProvider*>(callbacks)); |
| |
| if (cp == nullptr) { |
| ALOGE("%s: callback ops is null", __FUNCTION__); |
| return; |
| } |
| |
| Mutex::Autolock _l(cp->mCbLock); |
| if (cp->mCallbacks != nullptr) { |
| std::string cameraIdStr(camera_id); |
| TorchModeStatus status = (TorchModeStatus) new_status; |
| for (auto const& deviceNamePair : cp->mCameraDeviceNames) { |
| if (cameraIdStr.compare(deviceNamePair.first) == 0) { |
| cp->mCallbacks->torchModeStatusChange( |
| deviceNamePair.second, status); |
| } |
| } |
| } |
| } |
| |
| Status CameraProvider::getHidlStatus(int status) { |
| switch (status) { |
| case 0: return Status::OK; |
| case -ENODEV: return Status::INTERNAL_ERROR; |
| case -EINVAL: return Status::ILLEGAL_ARGUMENT; |
| default: |
| ALOGE("%s: unknown HAL status code %d", __FUNCTION__, status); |
| return Status::INTERNAL_ERROR; |
| } |
| } |
| |
| std::string CameraProvider::getLegacyCameraId(const hidl_string& deviceName) { |
| std::string cameraId; |
| matchDeviceName(deviceName, nullptr, &cameraId); |
| return cameraId; |
| } |
| |
| int CameraProvider::getCameraDeviceVersion(const hidl_string& deviceName) { |
| std::string deviceVersion; |
| bool match = matchDeviceName(deviceName, &deviceVersion, nullptr); |
| if (!match) { |
| return -1; |
| } |
| if (deviceVersion == kHAL3_3) { |
| return CAMERA_DEVICE_API_VERSION_3_3; |
| } else if (deviceVersion == kHAL3_2) { |
| return CAMERA_DEVICE_API_VERSION_3_2; |
| } else if (deviceVersion == kHAL1_0) { |
| return CAMERA_DEVICE_API_VERSION_1_0; |
| } |
| return 0; |
| } |
| |
| std::string CameraProvider::getHidlDeviceName( |
| std::string cameraId, int deviceVersion) { |
| // Maybe consider create a version check method and SortedVec to speed up? |
| if (deviceVersion != CAMERA_DEVICE_API_VERSION_1_0 && |
| deviceVersion != CAMERA_DEVICE_API_VERSION_3_2 && |
| deviceVersion != CAMERA_DEVICE_API_VERSION_3_3 && |
| deviceVersion != CAMERA_DEVICE_API_VERSION_3_4 ) { |
| return hidl_string(""); |
| } |
| bool isV1 = deviceVersion == CAMERA_DEVICE_API_VERSION_1_0; |
| int versionMajor = isV1 ? 1 : 3; |
| int versionMinor = isV1 ? 0 : mPreferredHal3MinorVersion; |
| char deviceName[kMaxCameraDeviceNameLen]; |
| snprintf(deviceName, sizeof(deviceName), "device@%d.%d/legacy/%s", |
| versionMajor, versionMinor, cameraId.c_str()); |
| return deviceName; |
| } |
| |
| CameraProvider::CameraProvider() : |
| camera_module_callbacks_t({sCameraDeviceStatusChange, |
| sTorchModeStatusChange}) { |
| mInitFailed = initialize(); |
| } |
| |
| CameraProvider::~CameraProvider() {} |
| |
| bool CameraProvider::initialize() { |
| camera_module_t *rawModule; |
| int err = hw_get_module(CAMERA_HARDWARE_MODULE_ID, |
| (const hw_module_t **)&rawModule); |
| if (err < 0) { |
| ALOGE("Could not load camera HAL module: %d (%s)", err, strerror(-err)); |
| return true; |
| } |
| |
| mModule = new CameraModule(rawModule); |
| err = mModule->init(); |
| if (err != OK) { |
| ALOGE("Could not initialize camera HAL module: %d (%s)", err, strerror(-err)); |
| mModule.clear(); |
| return true; |
| } |
| ALOGI("Loaded \"%s\" camera module", mModule->getModuleName()); |
| |
| // Setup vendor tags here so HAL can setup vendor keys in camera characteristics |
| VendorTagDescriptor::clearGlobalVendorTagDescriptor(); |
| if (!setUpVendorTags()) { |
| ALOGE("%s: Vendor tag setup failed, will not be available.", __FUNCTION__); |
| } |
| |
| // Setup callback now because we are going to try openLegacy next |
| err = mModule->setCallbacks(this); |
| if (err != OK) { |
| ALOGE("Could not set camera module callback: %d (%s)", err, strerror(-err)); |
| mModule.clear(); |
| return true; |
| } |
| |
| mPreferredHal3MinorVersion = property_get_int32("ro.camera.wrapper.hal3TrebleMinorVersion", 3); |
| ALOGV("Preferred HAL 3 minor version is %d", mPreferredHal3MinorVersion); |
| switch(mPreferredHal3MinorVersion) { |
| case 2: |
| case 3: |
| // OK |
| break; |
| default: |
| ALOGW("Unknown minor camera device HAL version %d in property " |
| "'camera.wrapper.hal3TrebleMinorVersion', defaulting to 3", mPreferredHal3MinorVersion); |
| mPreferredHal3MinorVersion = 3; |
| } |
| |
| mNumberOfLegacyCameras = mModule->getNumberOfCameras(); |
| for (int i = 0; i < mNumberOfLegacyCameras; i++) { |
| struct camera_info info; |
| auto rc = mModule->getCameraInfo(i, &info); |
| if (rc != NO_ERROR) { |
| ALOGE("%s: Camera info query failed!", __func__); |
| mModule.clear(); |
| return true; |
| } |
| |
| if (checkCameraVersion(i, info) != OK) { |
| ALOGE("%s: Camera version check failed!", __func__); |
| mModule.clear(); |
| return true; |
| } |
| |
| char cameraId[kMaxCameraIdLen]; |
| snprintf(cameraId, sizeof(cameraId), "%d", i); |
| std::string cameraIdStr(cameraId); |
| mCameraStatusMap[cameraIdStr] = CAMERA_DEVICE_STATUS_PRESENT; |
| mCameraIds.add(cameraIdStr); |
| |
| // initialize mCameraDeviceNames and mOpenLegacySupported |
| mOpenLegacySupported[cameraIdStr] = false; |
| int deviceVersion = mModule->getDeviceVersion(i); |
| mCameraDeviceNames.add( |
| std::make_pair(cameraIdStr, |
| getHidlDeviceName(cameraIdStr, deviceVersion))); |
| if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_2 && |
| mModule->isOpenLegacyDefined()) { |
| // try open_legacy to see if it actually works |
| struct hw_device_t* halDev = nullptr; |
| int ret = mModule->openLegacy(cameraId, CAMERA_DEVICE_API_VERSION_1_0, &halDev); |
| if (ret == 0) { |
| mOpenLegacySupported[cameraIdStr] = true; |
| halDev->close(halDev); |
| mCameraDeviceNames.add( |
| std::make_pair(cameraIdStr, |
| getHidlDeviceName(cameraIdStr, CAMERA_DEVICE_API_VERSION_1_0))); |
| } else if (ret == -EBUSY || ret == -EUSERS) { |
| // Looks like this provider instance is not initialized during |
| // system startup and there are other camera users already. |
| // Not a good sign but not fatal. |
| ALOGW("%s: open_legacy try failed!", __FUNCTION__); |
| } |
| } |
| } |
| |
| return false; // mInitFailed |
| } |
| |
| /** |
| * Check that the device HAL version is still in supported. |
| */ |
| int CameraProvider::checkCameraVersion(int id, camera_info info) { |
| if (mModule == nullptr) { |
| return NO_INIT; |
| } |
| |
| // device_version undefined in CAMERA_MODULE_API_VERSION_1_0, |
| // All CAMERA_MODULE_API_VERSION_1_0 devices are backward-compatible |
| if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) { |
| // Verify the device version is in the supported range |
| switch (info.device_version) { |
| case CAMERA_DEVICE_API_VERSION_1_0: |
| case CAMERA_DEVICE_API_VERSION_3_2: |
| case CAMERA_DEVICE_API_VERSION_3_3: |
| case CAMERA_DEVICE_API_VERSION_3_4: |
| // in support |
| break; |
| case CAMERA_DEVICE_API_VERSION_2_0: |
| case CAMERA_DEVICE_API_VERSION_2_1: |
| case CAMERA_DEVICE_API_VERSION_3_0: |
| case CAMERA_DEVICE_API_VERSION_3_1: |
| // no longer supported |
| default: |
| ALOGE("%s: Device %d has HAL version %x, which is not supported", |
| __FUNCTION__, id, info.device_version); |
| return NO_INIT; |
| } |
| } |
| |
| return OK; |
| } |
| |
| bool CameraProvider::setUpVendorTags() { |
| ATRACE_CALL(); |
| vendor_tag_ops_t vOps = vendor_tag_ops_t(); |
| |
| // Check if vendor operations have been implemented |
| if (!mModule->isVendorTagDefined()) { |
| ALOGI("%s: No vendor tags defined for this device.", __FUNCTION__); |
| return true; |
| } |
| |
| mModule->getVendorTagOps(&vOps); |
| |
| // Ensure all vendor operations are present |
| if (vOps.get_tag_count == nullptr || vOps.get_all_tags == nullptr || |
| vOps.get_section_name == nullptr || vOps.get_tag_name == nullptr || |
| vOps.get_tag_type == nullptr) { |
| ALOGE("%s: Vendor tag operations not fully defined. Ignoring definitions." |
| , __FUNCTION__); |
| return false; |
| } |
| |
| // Read all vendor tag definitions into a descriptor |
| sp<VendorTagDescriptor> desc; |
| status_t res; |
| if ((res = VendorTagDescriptor::createDescriptorFromOps(&vOps, /*out*/desc)) |
| != OK) { |
| ALOGE("%s: Could not generate descriptor from vendor tag operations," |
| "received error %s (%d). Camera clients will not be able to use" |
| "vendor tags", __FUNCTION__, strerror(res), res); |
| return false; |
| } |
| |
| // Set the global descriptor to use with camera metadata |
| VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc); |
| const SortedVector<String8>* sectionNames = desc->getAllSectionNames(); |
| size_t numSections = sectionNames->size(); |
| std::vector<std::vector<VendorTag>> tagsBySection(numSections); |
| int tagCount = desc->getTagCount(); |
| std::vector<uint32_t> tags(tagCount); |
| desc->getTagArray(tags.data()); |
| for (int i = 0; i < tagCount; i++) { |
| VendorTag vt; |
| vt.tagId = tags[i]; |
| vt.tagName = desc->getTagName(tags[i]); |
| vt.tagType = (CameraMetadataType) desc->getTagType(tags[i]); |
| ssize_t sectionIdx = desc->getSectionIndex(tags[i]); |
| tagsBySection[sectionIdx].push_back(vt); |
| } |
| mVendorTagSections.resize(numSections); |
| for (size_t s = 0; s < numSections; s++) { |
| mVendorTagSections[s].sectionName = (*sectionNames)[s].string(); |
| mVendorTagSections[s].tags = tagsBySection[s]; |
| } |
| return true; |
| } |
| |
| // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow. |
| Return<Status> CameraProvider::setCallback(const sp<ICameraProviderCallback>& callback) { |
| Mutex::Autolock _l(mCbLock); |
| mCallbacks = callback; |
| return Status::OK; |
| } |
| |
| Return<void> CameraProvider::getVendorTags(getVendorTags_cb _hidl_cb) { |
| _hidl_cb(Status::OK, mVendorTagSections); |
| return Void(); |
| } |
| |
| Return<void> CameraProvider::getCameraIdList(getCameraIdList_cb _hidl_cb) { |
| std::vector<hidl_string> deviceNameList; |
| for (auto const& deviceNamePair : mCameraDeviceNames) { |
| if (mCameraStatusMap[deviceNamePair.first] == CAMERA_DEVICE_STATUS_PRESENT) { |
| deviceNameList.push_back(deviceNamePair.second); |
| } |
| } |
| hidl_vec<hidl_string> hidlDeviceNameList(deviceNameList); |
| _hidl_cb(Status::OK, hidlDeviceNameList); |
| return Void(); |
| } |
| |
| Return<void> CameraProvider::isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) { |
| bool support = mModule->isSetTorchModeSupported(); |
| _hidl_cb (Status::OK, support); |
| return Void(); |
| } |
| |
| Return<void> CameraProvider::getCameraDeviceInterface_V1_x( |
| const hidl_string& cameraDeviceName, getCameraDeviceInterface_V1_x_cb _hidl_cb) { |
| std::string cameraId, deviceVersion; |
| bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId); |
| if (!match) { |
| _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr); |
| return Void(); |
| } |
| |
| std::string deviceName(cameraDeviceName.c_str()); |
| ssize_t index = mCameraDeviceNames.indexOf(std::make_pair(cameraId, deviceName)); |
| if (index == NAME_NOT_FOUND) { // Either an illegal name or a device version mismatch |
| Status status = Status::OK; |
| ssize_t idx = mCameraIds.indexOf(cameraId); |
| if (idx == NAME_NOT_FOUND) { |
| ALOGE("%s: cannot find camera %s!", __FUNCTION__, cameraId.c_str()); |
| status = Status::ILLEGAL_ARGUMENT; |
| } else { // invalid version |
| ALOGE("%s: camera device %s does not support version %s!", |
| __FUNCTION__, cameraId.c_str(), deviceVersion.c_str()); |
| status = Status::OPERATION_NOT_SUPPORTED; |
| } |
| _hidl_cb(status, nullptr); |
| return Void(); |
| } |
| |
| if (mCameraStatusMap.count(cameraId) == 0 || |
| mCameraStatusMap[cameraId] != CAMERA_DEVICE_STATUS_PRESENT) { |
| _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr); |
| return Void(); |
| } |
| |
| sp<android::hardware::camera::device::V1_0::implementation::CameraDevice> device = |
| new android::hardware::camera::device::V1_0::implementation::CameraDevice( |
| mModule, cameraId, mCameraDeviceNames); |
| |
| if (device == nullptr) { |
| ALOGE("%s: cannot allocate camera device for id %s", __FUNCTION__, cameraId.c_str()); |
| _hidl_cb(Status::INTERNAL_ERROR, nullptr); |
| return Void(); |
| } |
| |
| if (device->isInitFailed()) { |
| ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str()); |
| device = nullptr; |
| _hidl_cb(Status::INTERNAL_ERROR, nullptr); |
| return Void(); |
| } |
| |
| _hidl_cb (Status::OK, device); |
| return Void(); |
| } |
| |
| Return<void> CameraProvider::getCameraDeviceInterface_V3_x( |
| const hidl_string& cameraDeviceName, getCameraDeviceInterface_V3_x_cb _hidl_cb) { |
| std::string cameraId, deviceVersion; |
| bool match = matchDeviceName(cameraDeviceName, &deviceVersion, &cameraId); |
| if (!match) { |
| _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr); |
| return Void(); |
| } |
| |
| std::string deviceName(cameraDeviceName.c_str()); |
| ssize_t index = mCameraDeviceNames.indexOf(std::make_pair(cameraId, deviceName)); |
| if (index == NAME_NOT_FOUND) { // Either an illegal name or a device version mismatch |
| Status status = Status::OK; |
| ssize_t idx = mCameraIds.indexOf(cameraId); |
| if (idx == NAME_NOT_FOUND) { |
| ALOGE("%s: cannot find camera %s!", __FUNCTION__, cameraId.c_str()); |
| status = Status::ILLEGAL_ARGUMENT; |
| } else { // invalid version |
| ALOGE("%s: camera device %s does not support version %s!", |
| __FUNCTION__, cameraId.c_str(), deviceVersion.c_str()); |
| status = Status::OPERATION_NOT_SUPPORTED; |
| } |
| _hidl_cb(status, nullptr); |
| return Void(); |
| } |
| |
| if (mCameraStatusMap.count(cameraId) == 0 || |
| mCameraStatusMap[cameraId] != CAMERA_DEVICE_STATUS_PRESENT) { |
| _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr); |
| return Void(); |
| } |
| |
| // Since some Treble HAL revisions can map to the same legacy HAL version(s), we default |
| // to the newest possible Treble HAL revision, but allow for override if needed via |
| // system property. |
| sp<android::hardware::camera::device::V3_2::ICameraDevice> device; |
| switch (mPreferredHal3MinorVersion) { |
| case 2: { // Map legacy camera device v3 HAL to Treble camera device HAL v3.2 |
| ALOGV("Constructing v3.2 camera device"); |
| sp<android::hardware::camera::device::V3_2::implementation::CameraDevice> deviceImpl = |
| new android::hardware::camera::device::V3_2::implementation::CameraDevice( |
| mModule, cameraId, mCameraDeviceNames); |
| if (deviceImpl == nullptr || deviceImpl->isInitFailed()) { |
| ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str()); |
| device = nullptr; |
| _hidl_cb(Status::INTERNAL_ERROR, nullptr); |
| return Void(); |
| } |
| device = deviceImpl; |
| break; |
| } |
| case 3: { // Map legacy camera device v3 HAL to Treble camera device HAL v3.3 |
| ALOGV("Constructing v3.3 camera device"); |
| sp<android::hardware::camera::device::V3_2::implementation::CameraDevice> deviceImpl = |
| new android::hardware::camera::device::V3_3::implementation::CameraDevice( |
| mModule, cameraId, mCameraDeviceNames); |
| if (deviceImpl == nullptr || deviceImpl->isInitFailed()) { |
| ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraId.c_str()); |
| device = nullptr; |
| _hidl_cb(Status::INTERNAL_ERROR, nullptr); |
| return Void(); |
| } |
| device = deviceImpl; |
| break; |
| } |
| default: |
| ALOGE("%s: Unknown HAL minor version %d!", __FUNCTION__, mPreferredHal3MinorVersion); |
| device = nullptr; |
| _hidl_cb(Status::INTERNAL_ERROR, nullptr); |
| return Void(); |
| } |
| _hidl_cb (Status::OK, device); |
| return Void(); |
| } |
| |
| ICameraProvider* HIDL_FETCH_ICameraProvider(const char* name) { |
| if (strcmp(name, kLegacyProviderName) != 0) { |
| return nullptr; |
| } |
| CameraProvider* provider = new CameraProvider(); |
| if (provider == nullptr) { |
| ALOGE("%s: cannot allocate camera provider!", __FUNCTION__); |
| return nullptr; |
| } |
| if (provider->isInitFailed()) { |
| ALOGE("%s: camera provider init failed!", __FUNCTION__); |
| delete provider; |
| return nullptr; |
| } |
| return provider; |
| } |
| |
| } // namespace implementation |
| } // namespace V2_4 |
| } // namespace provider |
| } // namespace camera |
| } // namespace hardware |
| } // namespace android |
