LuK1337 | 5aad893 | 2017-09-21 22:00:40 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ANDROID_HARDWARE_CAMERA_DEVICE_V1_0_CAMERADEVICE_H |
| 18 | #define ANDROID_HARDWARE_CAMERA_DEVICE_V1_0_CAMERADEVICE_H |
| 19 | |
| 20 | #include <unordered_map> |
| 21 | #include "utils/Mutex.h" |
| 22 | #include "utils/SortedVector.h" |
| 23 | #include "CameraModule.h" |
| 24 | #include "HandleImporter.h" |
| 25 | |
| 26 | #include <android/hardware/camera/device/1.0/ICameraDevice.h> |
| 27 | #include <android/hidl/allocator/1.0/IAllocator.h> |
| 28 | #include <android/hidl/memory/1.0/IMemory.h> |
| 29 | #include <hidl/MQDescriptor.h> |
| 30 | #include <hidl/Status.h> |
| 31 | |
| 32 | namespace android { |
| 33 | namespace hardware { |
| 34 | namespace camera { |
| 35 | namespace device { |
| 36 | namespace V1_0 { |
| 37 | namespace implementation { |
| 38 | |
| 39 | using ::android::hardware::camera::common::V1_0::CameraResourceCost; |
| 40 | using ::android::hardware::camera::common::V1_0::Status; |
| 41 | using ::android::hardware::camera::common::V1_0::TorchMode; |
| 42 | using ::android::hardware::camera::common::V1_0::helper::CameraModule; |
| 43 | using ::android::hardware::camera::common::V1_0::helper::HandleImporter; |
| 44 | using ::android::hardware::camera::device::V1_0::CameraInfo; |
| 45 | using ::android::hardware::camera::device::V1_0::CommandType; |
| 46 | using ::android::hardware::camera::device::V1_0::ICameraDevice; |
| 47 | using ::android::hardware::camera::device::V1_0::ICameraDeviceCallback; |
| 48 | using ::android::hardware::camera::device::V1_0::ICameraDevicePreviewCallback; |
| 49 | using ::android::hardware::camera::device::V1_0::MemoryId; |
| 50 | using ::android::hidl::allocator::V1_0::IAllocator; |
| 51 | using ::android::hidl::base::V1_0::IBase; |
| 52 | using ::android::hidl::memory::V1_0::IMemory; |
| 53 | using ::android::hardware::hidl_array; |
| 54 | using ::android::hardware::hidl_memory; |
| 55 | using ::android::hardware::hidl_string; |
| 56 | using ::android::hardware::hidl_vec; |
| 57 | using ::android::hardware::Return; |
| 58 | using ::android::hardware::Void; |
| 59 | using ::android::sp; |
| 60 | |
| 61 | struct CameraDevice : public ICameraDevice { |
| 62 | |
| 63 | // Called by provider HAL. Provider HAL must ensure the uniqueness of |
| 64 | // CameraDevice object per cameraId, or there could be multiple CameraDevice |
| 65 | // trying to access the same physical camera. |
| 66 | // Also, provider will have to keep track of all CameraDevice objects in |
| 67 | // order to notify CameraDevice when the underlying camera is detached |
| 68 | CameraDevice(sp<CameraModule> module, |
| 69 | const std::string& cameraId, |
| 70 | const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames); |
| 71 | ~CameraDevice(); |
| 72 | |
| 73 | // Caller must use this method to check if CameraDevice ctor failed |
| 74 | bool isInitFailed() { return mInitFail; } |
| 75 | // Used by provider HAL to signal external camera disconnected |
| 76 | void setConnectionStatus(bool connected); |
| 77 | |
| 78 | // Methods from ::android::hardware::camera::device::V1_0::ICameraDevice follow. |
| 79 | Return<void> getResourceCost(getResourceCost_cb _hidl_cb) override; |
| 80 | Return<void> getCameraInfo(getCameraInfo_cb _hidl_cb) override; |
| 81 | Return<Status> setTorchMode(TorchMode mode) override; |
| 82 | Return<Status> dumpState(const hidl_handle& fd) override; |
| 83 | Return<Status> open(const sp<ICameraDeviceCallback>& callback) override; |
| 84 | Return<Status> setPreviewWindow(const sp<ICameraDevicePreviewCallback>& window) override; |
| 85 | Return<void> enableMsgType(uint32_t msgType) override; |
| 86 | Return<void> disableMsgType(uint32_t msgType) override; |
| 87 | Return<bool> msgTypeEnabled(uint32_t msgType) override; |
| 88 | Return<Status> startPreview() override; |
| 89 | Return<void> stopPreview() override; |
| 90 | Return<bool> previewEnabled() override; |
| 91 | Return<Status> storeMetaDataInBuffers(bool enable) override; |
| 92 | Return<Status> startRecording() override; |
| 93 | Return<void> stopRecording() override; |
| 94 | Return<bool> recordingEnabled() override; |
| 95 | Return<void> releaseRecordingFrame(uint32_t memId, uint32_t bufferIndex) override; |
| 96 | Return<void> releaseRecordingFrameHandle( |
| 97 | uint32_t memId, uint32_t bufferIndex, const hidl_handle& frame) override; |
| 98 | Return<void> releaseRecordingFrameHandleBatch( |
| 99 | const hidl_vec<VideoFrameMessage>&) override; |
| 100 | Return<Status> autoFocus() override; |
| 101 | Return<Status> cancelAutoFocus() override; |
| 102 | Return<Status> takePicture() override; |
| 103 | Return<Status> cancelPicture() override; |
| 104 | Return<Status> setParameters(const hidl_string& params) override; |
| 105 | Return<void> getParameters(getParameters_cb _hidl_cb) override; |
| 106 | Return<Status> sendCommand(CommandType cmd, int32_t arg1, int32_t arg2) override; |
| 107 | Return<void> close() override; |
| 108 | |
| 109 | private: |
| 110 | struct CameraMemory : public camera_memory_t { |
| 111 | MemoryId mId; |
| 112 | CameraDevice* mDevice; |
| 113 | }; |
| 114 | |
| 115 | class CameraHeapMemory : public RefBase { |
| 116 | public: |
| 117 | CameraHeapMemory(int fd, size_t buf_size, uint_t num_buffers = 1); |
| 118 | explicit CameraHeapMemory( |
| 119 | sp<IAllocator> ashmemAllocator, size_t buf_size, uint_t num_buffers = 1); |
| 120 | void commonInitialization(); |
| 121 | virtual ~CameraHeapMemory(); |
| 122 | |
| 123 | size_t mBufSize; |
| 124 | uint_t mNumBufs; |
| 125 | |
| 126 | // Shared memory related members |
| 127 | hidl_memory mHidlHeap; |
| 128 | native_handle_t* mHidlHandle; // contains one shared memory FD |
| 129 | void* mHidlHeapMemData; |
| 130 | sp<IMemory> mHidlHeapMemory; // munmap happens in ~IMemory() |
| 131 | |
| 132 | CameraMemory handle; |
| 133 | }; |
| 134 | sp<IAllocator> mAshmemAllocator; |
| 135 | |
| 136 | const sp<CameraModule> mModule; |
| 137 | const std::string mCameraId; |
| 138 | // const after ctor |
| 139 | int mCameraIdInt; |
| 140 | int mDeviceVersion; |
| 141 | |
| 142 | camera_device_t* mDevice = nullptr; |
| 143 | |
| 144 | void initHalPreviewWindow(); |
| 145 | struct CameraPreviewWindow : public preview_stream_ops { |
| 146 | // Called when we expect buffer will be re-allocated |
| 147 | void cleanUpCirculatingBuffers(); |
| 148 | |
| 149 | Mutex mLock; |
| 150 | sp<ICameraDevicePreviewCallback> mPreviewCallback = nullptr; |
| 151 | std::unordered_map<uint64_t, buffer_handle_t> mCirculatingBuffers; |
| 152 | std::unordered_map<buffer_handle_t*, uint64_t> mBufferIdMap; |
| 153 | } mHalPreviewWindow; |
| 154 | |
| 155 | // gating access to mDevice, mInitFail, mDisconnected |
| 156 | mutable Mutex mLock; |
| 157 | |
| 158 | bool mInitFail = false; |
| 159 | // Set by provider (when external camera is connected/disconnected) |
| 160 | bool mDisconnected; |
| 161 | |
| 162 | static HandleImporter sHandleImporter; |
| 163 | |
| 164 | const SortedVector<std::pair<std::string, std::string>>& mCameraDeviceNames; |
| 165 | |
| 166 | sp<ICameraDeviceCallback> mDeviceCallback = nullptr; |
| 167 | |
| 168 | std::unordered_map<MemoryId, CameraHeapMemory*> mMemoryMap; |
| 169 | |
| 170 | bool mMetadataMode = false; |
| 171 | |
| 172 | mutable Mutex mBatchLock; |
| 173 | // Start of protection scope for mBatchLock |
| 174 | uint32_t mBatchSize = 0; // 0 for non-batch mode, set to other value to start batching |
| 175 | int32_t mBatchMsgType; // Maybe only allow DataCallbackMsg::VIDEO_FRAME? |
| 176 | std::vector<HandleTimestampMessage> mInflightBatch; |
| 177 | // End of protection scope for mBatchLock |
| 178 | |
| 179 | void handleCallbackTimestamp( |
| 180 | nsecs_t timestamp, int32_t msg_type, |
| 181 | MemoryId memId , unsigned index, native_handle_t* handle); |
| 182 | void releaseRecordingFrameLocked(uint32_t memId, uint32_t bufferIndex, const native_handle_t*); |
| 183 | |
| 184 | // shared memory methods |
| 185 | static camera_memory_t* sGetMemory(int fd, size_t buf_size, uint_t num_bufs, void *user); |
| 186 | static void sPutMemory(camera_memory_t *data); |
| 187 | |
| 188 | // Device callback forwarding methods |
| 189 | static void sNotifyCb(int32_t msg_type, int32_t ext1, int32_t ext2, void *user); |
| 190 | static void sDataCb(int32_t msg_type, const camera_memory_t *data, unsigned int index, |
| 191 | camera_frame_metadata_t *metadata, void *user); |
| 192 | static void sDataCbTimestamp(nsecs_t timestamp, int32_t msg_type, |
| 193 | const camera_memory_t *data, unsigned index, void *user); |
| 194 | |
| 195 | // Preview window callback forwarding methods |
| 196 | static int sDequeueBuffer(struct preview_stream_ops* w, |
| 197 | buffer_handle_t** buffer, int *stride); |
| 198 | |
| 199 | static int sLockBuffer(struct preview_stream_ops* w, buffer_handle_t* buffer); |
| 200 | |
| 201 | static int sEnqueueBuffer(struct preview_stream_ops* w, buffer_handle_t* buffer); |
| 202 | |
| 203 | static int sCancelBuffer(struct preview_stream_ops* w, buffer_handle_t* buffer); |
| 204 | |
| 205 | static int sSetBufferCount(struct preview_stream_ops* w, int count); |
| 206 | |
| 207 | static int sSetBuffersGeometry(struct preview_stream_ops* w, |
| 208 | int width, int height, int format); |
| 209 | |
| 210 | static int sSetCrop(struct preview_stream_ops *w, int left, int top, int right, int bottom); |
| 211 | |
| 212 | static int sSetTimestamp(struct preview_stream_ops *w, int64_t timestamp); |
| 213 | |
| 214 | static int sSetUsage(struct preview_stream_ops* w, int usage); |
| 215 | |
| 216 | static int sSetSwapInterval(struct preview_stream_ops *w, int interval); |
| 217 | |
| 218 | static int sGetMinUndequeuedBufferCount(const struct preview_stream_ops *w, int *count); |
| 219 | |
| 220 | // convert conventional HAL status to HIDL Status |
| 221 | static Status getHidlStatus(const int&); |
| 222 | static status_t getStatusT(const Status& s); |
| 223 | |
| 224 | Status initStatus() const; |
| 225 | void closeLocked(); |
| 226 | }; |
| 227 | |
| 228 | } // namespace implementation |
| 229 | } // namespace V1_0 |
| 230 | } // namespace device |
| 231 | } // namespace camera |
| 232 | } // namespace hardware |
| 233 | } // namespace android |
| 234 | |
| 235 | #endif // ANDROID_HARDWARE_CAMERA_DEVICE_V1_0_CAMERADEVICE_H |