Camera: default implementation of device 3.2

Test: compile
Bug: 30985004
Change-Id: Ibb48673840de6a5f7c75dc6993d5457a272177a2

1 files changed, 285 insertions, 0 deletions

diff --git a/camera/device/3.2/default/CameraDevice.cpp b/camera/device/3.2/default/CameraDevice.cpp
new file mode 100644
index 0000000000..51a29ec7b6
--- /dev/null
+++ b/camera/device/3.2/default/CameraDevice.cpp
@@ -0,0 +1,285 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "CamDev@3.2-impl"
+#include <android/log.h>
+
+#include <utils/Vector.h>
+#include <utils/Trace.h>
+#include "CameraDevice.h"
+#include <include/convert.h>
+
+namespace android {
+namespace hardware {
+namespace camera {
+namespace device {
+namespace V3_2 {
+namespace implementation {
+
+using ::android::hardware::camera::common::V1_0::Status;
+
+CameraDevice::CameraDevice(
+    sp<CameraModule> module, const std::string& cameraId,
+    const SortedVector<std::pair<std::string, std::string>>& cameraDeviceNames) :
+        mModule(module),
+        mCameraId(cameraId),
+        mDisconnected(false),
+        mCameraDeviceNames(cameraDeviceNames) {
+    mCameraIdInt = atoi(mCameraId.c_str());
+    // Should not reach here as provider also validate ID
+    if (mCameraIdInt < 0 || mCameraIdInt >= module->getNumberOfCameras()) {
+        ALOGE("%s: Invalid camera id: %s", __FUNCTION__, mCameraId.c_str());
+        mInitFail = true;
+    }
+
+    mDeviceVersion = mModule->getDeviceVersion(mCameraIdInt);
+    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
+        ALOGE("%s: Camera id %s does not support HAL3.2+",
+                __FUNCTION__, mCameraId.c_str());
+        mInitFail = true;
+    }
+}
+
+CameraDevice::~CameraDevice() {}
+
+Status CameraDevice::initStatus() const {
+    Mutex::Autolock _l(mLock);
+    Status status = Status::OK;
+    if (mInitFail) {
+        status = Status::INTERNAL_ERROR;
+    } else if (mDisconnected) {
+        status = Status::CAMERA_DISCONNECTED;
+    }
+    return status;
+}
+
+void CameraDevice::setConnectionStatus(bool connected) {
+    Mutex::Autolock _l(mLock);
+    mDisconnected = !connected;
+    if (mSession == nullptr) {
+        return;
+    }
+    sp<CameraDeviceSession> session = mSession.promote();
+    if (session == nullptr) {
+        return;
+    }
+    // Only notify active session disconnect events.
+    // Users will need to re-open camera after disconnect event
+    if (!connected) {
+        session->disconnect();
+    }
+    return;
+}
+
+Status CameraDevice::getHidlStatus(int status) {
+    switch (status) {
+        case 0: return Status::OK;
+        case -ENOSYS: return Status::OPERATION_NOT_SUPPORTED;
+        case -EBUSY : return Status::CAMERA_IN_USE;
+        case -EUSERS: return Status::MAX_CAMERAS_IN_USE;
+        case -ENODEV: return Status::INTERNAL_ERROR;
+        case -EINVAL: return Status::ILLEGAL_ARGUMENT;
+        default:
+            ALOGE("%s: unknown HAL status code %d", __FUNCTION__, status);
+            return Status::INTERNAL_ERROR;
+    }
+}
+
+// Methods from ::android::hardware::camera::device::V3_2::ICameraDevice follow.
+Return<void> CameraDevice::getResourceCost(getResourceCost_cb _hidl_cb)  {
+    Status status = initStatus();
+    CameraResourceCost resCost;
+    if (status == Status::OK) {
+        int cost = 100;
+        std::vector<std::string> conflicting_devices;
+        struct camera_info info;
+
+        // If using post-2.4 module version, query the cost + conflicting devices from the HAL
+        if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4) {
+            int ret = mModule->getCameraInfo(mCameraIdInt, &info);
+            if (ret == OK) {
+                cost = info.resource_cost;
+                for (size_t i = 0; i < info.conflicting_devices_length; i++) {
+                    std::string cameraId(info.conflicting_devices[i]);
+                    for (const auto& pair : mCameraDeviceNames) {
+                        if (cameraId == pair.first) {
+                            conflicting_devices.push_back(pair.second);
+                        }
+                    }
+                }
+            } else {
+                status = Status::INTERNAL_ERROR;
+            }
+        }
+
+        if (status == Status::OK) {
+            resCost.resourceCost = cost;
+            resCost.conflictingDevices.resize(conflicting_devices.size());
+            for (size_t i = 0; i < conflicting_devices.size(); i++) {
+                resCost.conflictingDevices[i] = conflicting_devices[i];
+                ALOGV("CamDevice %s is conflicting with camDevice %s",
+                        mCameraId.c_str(), resCost.conflictingDevices[i].c_str());
+            }
+        }
+    }
+    _hidl_cb(status, resCost);
+    return Void();
+}
+
+Return<void> CameraDevice::getCameraCharacteristics(getCameraCharacteristics_cb _hidl_cb)  {
+    Status status = initStatus();
+    CameraMetadata cameraCharacteristics;
+    if (status == Status::OK) {
+        //Module 2.1+ codepath.
+        struct camera_info info;
+        int ret = mModule->getCameraInfo(mCameraIdInt, &info);
+        if (ret == OK) {
+            convertToHidl(info.static_camera_characteristics, &cameraCharacteristics);
+        } else {
+            ALOGE("%s: get camera info failed!", __FUNCTION__);
+            status = Status::INTERNAL_ERROR;
+        }
+    }
+    _hidl_cb(status, cameraCharacteristics);
+    return Void();
+}
+
+Return<Status> CameraDevice::setTorchMode(TorchMode mode)  {
+    if (!mModule->isSetTorchModeSupported()) {
+        return Status::METHOD_NOT_SUPPORTED;
+    }
+
+    Status status = initStatus();
+    if (status == Status::OK) {
+        bool enable = (mode == TorchMode::ON) ? true : false;
+        status = getHidlStatus(mModule->setTorchMode(mCameraId.c_str(), enable));
+    }
+    return status;
+}
+
+Return<void> CameraDevice::open(const sp<ICameraDeviceCallback>& callback, open_cb _hidl_cb)  {
+    Status status = initStatus();
+    sp<CameraDeviceSession> session = nullptr;
+
+    if (callback == nullptr) {
+        ALOGE("%s: cannot open camera %s. callback is null!",
+                __FUNCTION__, mCameraId.c_str());
+        _hidl_cb(Status::ILLEGAL_ARGUMENT, session);
+        return Void();
+    }
+
+    if (status != Status::OK) {
+        // Provider will never pass initFailed device to client, so
+        // this must be a disconnected camera
+        ALOGE("%s: cannot open camera %s. camera is disconnected!",
+                __FUNCTION__, mCameraId.c_str());
+        _hidl_cb(Status::CAMERA_DISCONNECTED, session);
+        return Void();
+    } else {
+        mLock.lock();
+
+        ALOGV("%s: Initializing device for camera %d", __FUNCTION__, mCameraIdInt);
+        session = mSession.promote();
+        if (session != nullptr && !session->isClosed()) {
+            ALOGE("%s: cannot open an already opened camera!", __FUNCTION__);
+            mLock.unlock();
+            _hidl_cb(Status::CAMERA_IN_USE, nullptr);
+            return Void();
+        }
+
+        /** Open HAL device */
+        status_t res;
+        camera3_device_t *device;
+
+        ATRACE_BEGIN("camera3->open");
+        res = mModule->open(mCameraId.c_str(),
+                reinterpret_cast<hw_device_t**>(&device));
+        ATRACE_END();
+
+        if (res != OK) {
+            ALOGE("%s: cannot open camera %s!", __FUNCTION__, mCameraId.c_str());
+            mLock.unlock();
+            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+            return Void();
+        }
+
+        /** Cross-check device version */
+        if (device->common.version < CAMERA_DEVICE_API_VERSION_3_2) {
+            ALOGE("%s: Could not open camera: "
+                    "Camera device should be at least %x, reports %x instead",
+                    __FUNCTION__,
+                    CAMERA_DEVICE_API_VERSION_3_2,
+                    device->common.version);
+            device->common.close(&device->common);
+            mLock.unlock();
+            _hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
+            return Void();
+        }
+
+        session = new CameraDeviceSession(device, callback);
+        if (session == nullptr) {
+            ALOGE("%s: camera device session allocation failed", __FUNCTION__);
+            mLock.unlock();
+            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+            return Void();
+        }
+        if (session->isInitFailed()) {
+            ALOGE("%s: camera device session init failed", __FUNCTION__);
+            session = nullptr;
+            mLock.unlock();
+            _hidl_cb(Status::INTERNAL_ERROR, nullptr);
+            return Void();
+        }
+        mSession = session;
+        mLock.unlock();
+    }
+    _hidl_cb(status, session);
+    return Void();
+}
+
+Return<void> CameraDevice::dumpState(const ::android::hardware::hidl_handle& handle)  {
+    Mutex::Autolock _l(mLock);
+    if (handle.getNativeHandle() == nullptr) {
+        ALOGE("%s: handle must not be null", __FUNCTION__);
+        return Void();
+    }
+    if (handle->numFds != 1 || handle->numInts != 0) {
+        ALOGE("%s: handle must contain 1 FD and 0 integers! Got %d FDs and %d ints",
+                __FUNCTION__, handle->numFds, handle->numInts);
+        return Void();
+    }
+    int fd = handle->data[0];
+    if (mSession == nullptr) {
+        dprintf(fd, "No active camera device session instance\n");
+        return Void();
+    }
+    sp<CameraDeviceSession> session = mSession.promote();
+    if (session == nullptr) {
+        dprintf(fd, "No active camera device session instance\n");
+        return Void();
+    }
+    // Call into active session to dump states
+    session->dumpState(handle);
+    return Void();
+}
+// End of methods from ::android::hardware::camera::device::V3_2::ICameraDevice.
+
+} // namespace implementation
+}  // namespace V3_2
+}  // namespace device
+}  // namespace camera
+}  // namespace hardware
+}  // namespace android