| /* |
| * Copyright (C) 2018 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. |
| */ |
| |
| #ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H |
| #define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H |
| |
| #include <string> |
| #include <unordered_map> |
| #include <unordered_set> |
| #include <utils/Mutex.h> |
| #include <utils/Thread.h> |
| #include <hidl/Status.h> |
| #include <hidl/MQDescriptor.h> |
| #include "ExternalCameraUtils.h" |
| |
| #include "CameraProvider_2_4.h" |
| |
| namespace android { |
| namespace hardware { |
| namespace camera { |
| namespace provider { |
| namespace V2_4 { |
| namespace implementation { |
| |
| using ::android::hardware::camera::common::V1_0::CameraDeviceStatus; |
| using ::android::hardware::camera::common::V1_0::Status; |
| using ::android::hardware::camera::common::V1_0::VendorTagSection; |
| using ::android::hardware::camera::external::common::ExternalCameraConfig; |
| using ::android::hardware::camera::provider::V2_4::ICameraProvider; |
| using ::android::hardware::camera::provider::V2_4::ICameraProviderCallback; |
| using ::android::hardware::Return; |
| using ::android::hardware::Void; |
| using ::android::hardware::hidl_vec; |
| using ::android::hardware::hidl_string; |
| using ::android::sp; |
| using ::android::Mutex; |
| |
| /** |
| * The implementation of external webcam CameraProvider 2.4, separated |
| * from the HIDL interface layer to allow for implementation reuse by later |
| * provider versions. |
| * |
| * This camera provider supports standard UVC webcameras via the Linux V4L2 |
| * UVC driver. |
| */ |
| struct ExternalCameraProviderImpl_2_4 { |
| ExternalCameraProviderImpl_2_4(); |
| ~ExternalCameraProviderImpl_2_4(); |
| |
| // Caller must use this method to check if CameraProvider ctor failed |
| bool isInitFailed() { return false;} |
| |
| // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow. |
| Return<Status> setCallback(const sp<ICameraProviderCallback>& callback); |
| Return<void> getVendorTags(ICameraProvider::getVendorTags_cb _hidl_cb); |
| Return<void> getCameraIdList(ICameraProvider::getCameraIdList_cb _hidl_cb); |
| Return<void> isSetTorchModeSupported(ICameraProvider::isSetTorchModeSupported_cb _hidl_cb); |
| Return<void> getCameraDeviceInterface_V1_x( |
| const hidl_string&, |
| ICameraProvider::getCameraDeviceInterface_V1_x_cb); |
| Return<void> getCameraDeviceInterface_V3_x( |
| const hidl_string&, |
| ICameraProvider::getCameraDeviceInterface_V3_x_cb); |
| |
| private: |
| |
| void addExternalCamera(const char* devName); |
| |
| void deviceAdded(const char* devName); |
| |
| void deviceRemoved(const char* devName); |
| |
| class HotplugThread : public android::Thread { |
| public: |
| HotplugThread(ExternalCameraProviderImpl_2_4* parent); |
| ~HotplugThread(); |
| |
| virtual bool threadLoop() override; |
| |
| private: |
| ExternalCameraProviderImpl_2_4* mParent = nullptr; |
| const std::unordered_set<std::string> mInternalDevices; |
| |
| int mINotifyFD = -1; |
| int mWd = -1; |
| }; |
| |
| Mutex mLock; |
| sp<ICameraProviderCallback> mCallbacks = nullptr; |
| std::unordered_map<std::string, CameraDeviceStatus> mCameraStatusMap; // camera id -> status |
| const ExternalCameraConfig mCfg; |
| sp<HotplugThread> mHotPlugThread; |
| int mPreferredHal3MinorVersion; |
| }; |
| |
| |
| |
| } // namespace implementation |
| } // namespace V2_4 |
| } // namespace provider |
| } // namespace camera |
| } // namespace hardware |
| } // namespace android |
| |
| #endif // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H |