Camera: Add default camera provider 2.4
Supports legacy camera HAL modules; also exports ICameraDevice
instances.
Test: compile
Bug: 30985004
Change-Id: I2b9624a412de95dd43979a5e6650b170010c577a
diff --git a/camera/provider/2.4/default/CameraProvider.h b/camera/provider/2.4/default/CameraProvider.h
new file mode 100644
index 0000000..79899d9
--- /dev/null
+++ b/camera/provider/2.4/default/CameraProvider.h
@@ -0,0 +1,119 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
+#define ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H
+
+#include "hardware/camera_common.h"
+#include "utils/Mutex.h"
+#include "utils/SortedVector.h"
+#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+#include <hidl/Status.h>
+#include <hidl/MQDescriptor.h>
+#include "CameraModule.h"
+#include "VendorTagDescriptor.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::TorchModeStatus;
+using ::android::hardware::camera::common::V1_0::VendorTag;
+using ::android::hardware::camera::common::V1_0::VendorTagSection;
+using ::android::hardware::camera::common::V1_0::helper::CameraModule;
+using ::android::hardware::camera::common::V1_0::helper::VendorTagDescriptor;
+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 CameraProvider : public ICameraProvider, public camera_module_callbacks_t {
+ CameraProvider();
+ ~CameraProvider();
+
+ // Caller must use this method to check if CameraProvider ctor failed
+ bool isInitFailed() { return mInitFailed; }
+
+ // 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& cameraDeviceName, getCameraDeviceInterface_V1_x_cb _hidl_cb) override;
+ Return<void> getCameraDeviceInterface_V3_x(const hidl_string& cameraDeviceName, getCameraDeviceInterface_V3_x_cb _hidl_cb) override;
+
+private:
+ Mutex mCbLock;
+ sp<ICameraProviderCallback> mCallbacks = nullptr;
+
+ sp<CameraModule> mModule;
+
+ int mNumberOfLegacyCameras;
+ std::map<std::string, camera_device_status_t> mCameraStatusMap; // camera id -> status
+ std::map<std::string, bool> mOpenLegacySupported; // camera id -> open_legacy HAL1.0 supported
+ SortedVector<std::string> mCameraIds; // the "0"/"1" legacy camera Ids
+ // (cameraId string, hidl device name) pairs
+ SortedVector<std::pair<std::string, std::string>> mCameraDeviceNames;
+
+ // Must be queried before using any APIs.
+ // APIs will only work when this returns true
+ bool mInitFailed;
+ bool initialize();
+
+ hidl_vec<VendorTagSection> mVendorTagSections;
+ bool setUpVendorTags();
+
+ // extract legacy camera ID/device version from a HIDL device name
+ static bool matchDeviceName(const hidl_string& deviceName, std::smatch& sm);
+ static std::string getLegacyCameraId(const hidl_string& deviceName);
+ static int getCameraDeviceVersion(const hidl_string& deviceName);
+
+ // create HIDL device name from camera ID and device version
+ static std::string getHidlDeviceName(std::string cameraId, int deviceVersion);
+
+ // convert conventional HAL status to HIDL Status
+ static Status getHidlStatus(int);
+
+ // static callback forwarding methods
+ static void sCameraDeviceStatusChange(
+ const struct camera_module_callbacks* callbacks,
+ int camera_id,
+ int new_status);
+ static void sTorchModeStatusChange(
+ const struct camera_module_callbacks* callbacks,
+ const char* camera_id,
+ int new_status);
+};
+
+extern "C" ICameraProvider* HIDL_FETCH_ICameraProvider(const char* name);
+
+} // namespace implementation
+} // namespace V2_4
+} // namespace provider
+} // namespace camera
+} // namespace hardware
+} // namespace android
+
+#endif // ANDROID_HARDWARE_CAMERA_PROVIDER_V2_4_CAMERAPROVIDER_H