Camera: Add external camera provider
Bug: 64874137 63873538
Change-Id: I4309874a7dedd3dd71d4bd0c2004d460421db679
diff --git a/camera/provider/2.4/default/ExternalCameraProvider.h b/camera/provider/2.4/default/ExternalCameraProvider.h
new file mode 100644
index 0000000..c7ed99e
--- /dev/null
+++ b/camera/provider/2.4/default/ExternalCameraProvider.h
@@ -0,0 +1,102 @@
+/*
+ * 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 <unordered_map>
+#include "utils/Mutex.h"
+#include "utils/Thread.h"
+#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.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::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;
+
+struct ExternalCameraProvider : public ICameraProvider {
+ ExternalCameraProvider();
+ ~ExternalCameraProvider();
+
+ // Methods from ::android::hardware::camera::provider::V2_4::ICameraProvider follow.
+ Return<Status> setCallback(const sp<ICameraProviderCallback>& callback) override;
+
+ Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override;
+
+ Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override;
+
+ Return<void> isSetTorchModeSupported(isSetTorchModeSupported_cb _hidl_cb) override;
+
+ Return<void> getCameraDeviceInterface_V1_x(
+ const hidl_string&,
+ getCameraDeviceInterface_V1_x_cb) override;
+ Return<void> getCameraDeviceInterface_V3_x(
+ const hidl_string&,
+ getCameraDeviceInterface_V3_x_cb) override;
+
+private:
+
+ void addExternalCamera(const char* devName);
+
+ void deviceAdded(const char* devName);
+
+ void deviceRemoved(const char* devName);
+
+ class HotplugThread : public android::Thread {
+ public:
+ HotplugThread(ExternalCameraProvider* parent);
+ ~HotplugThread();
+
+ virtual bool threadLoop() override;
+
+ private:
+ ExternalCameraProvider* mParent = nullptr;
+
+ int mINotifyFD = -1;
+ int mWd = -1;
+ } mHotPlugThread;
+
+ Mutex mLock;
+ sp<ICameraProviderCallback> mCallbacks = nullptr;
+ std::unordered_map<std::string, CameraDeviceStatus> mCameraStatusMap; // camera id -> status
+};
+
+
+
+} // namespace implementation
+} // namespace V2_4
+} // namespace provider
+} // namespace camera
+} // namespace hardware
+} // namespace android
+
+#endif // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_EXTCAMERAPROVIDER_H