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135 lines
5.8 KiB
135 lines
5.8 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSCAMERAENUMERATOR_H
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#define ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSCAMERAENUMERATOR_H
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#include <android/hardware/automotive/evs/1.1/IEvsEnumerator.h>
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#include <android/hardware/automotive/evs/1.1/IEvsCamera.h>
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#include <android/hardware/camera/device/3.2/ICameraDevice.h>
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#include <android/frameworks/automotive/display/1.0/IAutomotiveDisplayProxyService.h>
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#include <unordered_map>
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#include <thread>
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#include <atomic>
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#include "ConfigManager.h"
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using ::android::hardware::camera::device::V3_2::Stream;
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using EvsDisplayState = ::android::hardware::automotive::evs::V1_0::DisplayState;
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using IEvsCamera_1_0 = ::android::hardware::automotive::evs::V1_0::IEvsCamera;
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using IEvsCamera_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsCamera;
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using IEvsDisplay_1_0 = ::android::hardware::automotive::evs::V1_0::IEvsDisplay;
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using IEvsDisplay_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsDisplay;
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using android::frameworks::automotive::display::V1_0::IAutomotiveDisplayProxyService;
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namespace android {
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namespace hardware {
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namespace automotive {
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namespace evs {
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namespace V1_1 {
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namespace implementation {
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class EvsV4lCamera; // from EvsCamera.h
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class EvsGlDisplay; // from EvsGlDisplay.h
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class EvsEnumerator : public IEvsEnumerator {
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public:
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// Methods from ::android::hardware::automotive::evs::V1_0::IEvsEnumerator follow.
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Return<void> getCameraList(getCameraList_cb _hidl_cb) override;
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Return<sp<IEvsCamera_1_0>> openCamera(const hidl_string& cameraId) override;
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Return<void> closeCamera(const ::android::sp<IEvsCamera_1_0>& pCamera) override;
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Return<sp<IEvsDisplay_1_0>> openDisplay() override;
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Return<void> closeDisplay(const ::android::sp<IEvsDisplay_1_0>& display) override;
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Return<EvsDisplayState> getDisplayState() override;
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// Methods from ::android::hardware::automotive::evs::V1_1::IEvsEnumerator follow.
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Return<void> getCameraList_1_1(getCameraList_1_1_cb _hidl_cb) override;
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Return<sp<IEvsCamera_1_1>> openCamera_1_1(const hidl_string& cameraId,
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const Stream& streamCfg) override;
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Return<bool> isHardware() override { return true; }
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Return<void> getDisplayIdList(getDisplayIdList_cb _list_cb) override;
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Return<sp<IEvsDisplay_1_1>> openDisplay_1_1(uint8_t port) override;
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Return<void> getUltrasonicsArrayList(getUltrasonicsArrayList_cb _hidl_cb) override;
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Return<sp<IEvsUltrasonicsArray>> openUltrasonicsArray(
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const hidl_string& ultrasonicsArrayId) override;
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Return<void> closeUltrasonicsArray(
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const ::android::sp<IEvsUltrasonicsArray>& evsUltrasonicsArray) override;
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// Implementation details
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EvsEnumerator(sp<IAutomotiveDisplayProxyService> proxyService = nullptr);
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// Listen to video device uevents
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static void EvsUeventThread(std::atomic<bool>& running);
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// Methods from ::android.hidl.base::V1_0::IBase follow.
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Return<void> debug(const hidl_handle& fd, const hidl_vec<hidl_string>& options) override;
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private:
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struct CameraRecord {
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CameraDesc desc;
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wp<EvsV4lCamera> activeInstance;
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CameraRecord(const char *cameraId) : desc() { desc.v1.cameraId = cameraId; }
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};
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bool checkPermission();
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static bool qualifyCaptureDevice(const char* deviceName);
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static CameraRecord* findCameraById(const std::string& cameraId);
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static void enumerateCameras();
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static void enumerateDisplays();
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void closeCamera_impl(const sp<IEvsCamera_1_0>& pCamera, const std::string& cameraId);
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// NOTE: All members values are static so that all clients operate on the same state
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// That is to say, this is effectively a singleton despite the fact that HIDL
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// constructs a new instance for each client.
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// Because our server has a single thread in the thread pool, these values are
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// never accessed concurrently despite potentially having multiple instance objects
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// using them.
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static std::unordered_map<std::string,
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CameraRecord> sCameraList;
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static wp<EvsGlDisplay> sActiveDisplay; // Weak pointer.
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// Object destructs if client dies.
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static std::mutex sLock; // Mutex on shared camera device list.
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static std::condition_variable sCameraSignal; // Signal on camera device addition.
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static std::unique_ptr<ConfigManager> sConfigManager; // ConfigManager
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static sp<IAutomotiveDisplayProxyService> sDisplayProxy;
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static std::unordered_map<uint8_t,
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uint64_t> sDisplayPortList;
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static uint64_t sInternalDisplayId;
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// LSHAL debug command implementations
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void parseCommand(int fd, const hidl_vec<hidl_string>& options);
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void cmdHelp(int fd);
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void cmdDump(int fd, const hidl_vec<hidl_string>& options);
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};
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} // namespace implementation
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} // namespace V1_1
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} // namespace evs
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} // namespace automotive
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} // namespace hardware
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} // namespace android
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#endif // ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSCAMERAENUMERATOR_H
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