TV Input HAL 2.0 default implementation

Initial version, fixed tabs.
Addressed comments.
Updated based on new AIDL interface changes.

Bug: 227673740
Test: atest VtsHalTvInputTargetTest
Change-Id: I49af8baa30404700fc38662b813913fe8cf08c0f

tv/input/aidl/default/Android.bp

@@ -0,0 +1,31 @@
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "hardware_interfaces_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["hardware_interfaces_license"],
+}
+
+cc_binary {
+    name: "android.hardware.tv.input-service.example",
+    relative_install_path: "hw",
+    init_rc: ["input-default.rc"],
+    vintf_fragments: ["input-default.xml"],
+    vendor: true,
+    srcs: [
+        "TvInput.cpp",
+        "service.cpp",
+    ],
+    static_libs: [
+        "libaidlcommonsupport",
+    ],
+    shared_libs: [
+        "libbase",
+        "liblog",
+        "libutils",
+        "libcutils",
+        "libbinder_ndk",
+        "android.hardware.tv.input-V1-ndk",
+    ],
+}

tv/input/aidl/default/TvInput.cpp

@@ -0,0 +1,143 @@
+/*
+ * Copyright 2022 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 "android.hardware.tv.input-service.example"
+
+#include <utils/Log.h>
+
+#include "TvInput.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace tv {
+namespace input {
+
+TvInput::TvInput() {}
+
+void TvInput::init() {
+    // Set up TvInputDeviceInfo and TvStreamConfig
+    mDeviceInfos[0] = shared_ptr<TvInputDeviceInfoWrapper>(
+            new TvInputDeviceInfoWrapper(0, TvInputType::TUNER, true));
+    mDeviceInfos[1] = shared_ptr<TvInputDeviceInfoWrapper>(
+            new TvInputDeviceInfoWrapper(1, TvInputType::HDMI, true));
+    mDeviceInfos[3] = shared_ptr<TvInputDeviceInfoWrapper>(
+            new TvInputDeviceInfoWrapper(3, TvInputType::DISPLAY_PORT, true));
+
+    mStreamConfigs[0] = {
+            {1, shared_ptr<TvStreamConfigWrapper>(new TvStreamConfigWrapper(1, 720, 1080, false))}};
+    mStreamConfigs[1] = {{11, shared_ptr<TvStreamConfigWrapper>(
+                                      new TvStreamConfigWrapper(11, 360, 480, false))}};
+    mStreamConfigs[3] = {{5, shared_ptr<TvStreamConfigWrapper>(
+                                     new TvStreamConfigWrapper(5, 1080, 1920, false))}};
+}
+
+::ndk::ScopedAStatus TvInput::setCallback(const shared_ptr<ITvInputCallback>& in_callback) {
+    ALOGV("%s", __FUNCTION__);
+
+    mCallback = in_callback;
+
+    TvInputEvent event;
+    event.type = TvInputEventType::DEVICE_AVAILABLE;
+
+    event.deviceInfo = mDeviceInfos[0]->deviceInfo;
+    mCallback->notify(event);
+
+    event.deviceInfo = mDeviceInfos[1]->deviceInfo;
+    mCallback->notify(event);
+
+    event.deviceInfo = mDeviceInfos[3]->deviceInfo;
+    mCallback->notify(event);
+
+    return ::ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus TvInput::getStreamConfigurations(int32_t in_deviceId,
+                                                      vector<TvStreamConfig>* _aidl_return) {
+    ALOGV("%s", __FUNCTION__);
+
+    if (mStreamConfigs.count(in_deviceId) == 0) {
+        ALOGW("Device with id %d isn't available", in_deviceId);
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(STATUS_INVALID_ARGUMENTS);
+    }
+
+    for (auto const& iconfig : mStreamConfigs[in_deviceId]) {
+        _aidl_return->push_back(iconfig.second->streamConfig);
+    }
+
+    return ::ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus TvInput::openStream(int32_t in_deviceId, int32_t in_streamId,
+                                         NativeHandle* _aidl_return) {
+    ALOGV("%s", __FUNCTION__);
+
+    if (mStreamConfigs.count(in_deviceId) == 0 ||
+        mStreamConfigs[in_deviceId].count(in_streamId) == 0) {
+        ALOGW("Stream with device id %d, stream id %d isn't available", in_deviceId, in_streamId);
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(STATUS_INVALID_ARGUMENTS);
+    }
+    if (mStreamConfigs[in_deviceId][in_streamId]->isOpen) {
+        ALOGW("Stream with device id %d, stream id %d is already opened", in_deviceId, in_streamId);
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(STATUS_INVALID_STATE);
+    }
+    mStreamConfigs[in_deviceId][in_streamId]->handle = createNativeHandle(in_streamId);
+    mStreamConfigs[in_deviceId][in_streamId]->isOpen = true;
+    NativeHandle aidlHandle = makeToAidl(mStreamConfigs[in_deviceId][in_streamId]->handle);
+    _aidl_return = &aidlHandle;
+    return ::ndk::ScopedAStatus::ok();
+}
+
+::ndk::ScopedAStatus TvInput::closeStream(int32_t in_deviceId, int32_t in_streamId) {
+    ALOGV("%s", __FUNCTION__);
+
+    if (mStreamConfigs.count(in_deviceId) == 0 ||
+        mStreamConfigs[in_deviceId].count(in_streamId) == 0) {
+        ALOGW("Stream with device id %d, stream id %d isn't available", in_deviceId, in_streamId);
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(STATUS_INVALID_ARGUMENTS);
+    }
+    if (!mStreamConfigs[in_deviceId][in_streamId]->isOpen) {
+        ALOGW("Stream with device id %d, stream id %d is already closed", in_deviceId, in_streamId);
+        return ::ndk::ScopedAStatus::fromServiceSpecificError(STATUS_INVALID_STATE);
+    }
+    releaseNativeHandle(mStreamConfigs[in_deviceId][in_streamId]->handle);
+    mStreamConfigs[in_deviceId][in_streamId]->handle = nullptr;
+    mStreamConfigs[in_deviceId][in_streamId]->isOpen = false;
+    return ::ndk::ScopedAStatus::ok();
+}
+
+native_handle_t* TvInput::createNativeHandle(int fd) {
+    native_handle_t* nativeHandle = native_handle_create(1, 0);
+    if (nativeHandle == nullptr) {
+        ALOGE("[TVInput] Failed to create native_handle %d", errno);
+        return nullptr;
+    }
+    if (nativeHandle->numFds > 0) {
+        nativeHandle->data[0] = dup(fd);
+    }
+    return nativeHandle;
+}
+
+void TvInput::releaseNativeHandle(native_handle_t* handle) {
+    native_handle_close(handle);
+    native_handle_delete(handle);
+}
+
+}  // namespace input
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

tv/input/aidl/default/TvInput.h

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2022 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/tv/input/BnTvInput.h>
+#include <utils/KeyedVector.h>
+
+#include <map>
+#include "TvInputDeviceInfoWrapper.h"
+#include "TvStreamConfigWrapper.h"
+
+using namespace android;
+using namespace std;
+using ::aidl::android::hardware::common::NativeHandle;
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace tv {
+namespace input {
+
+class TvInput : public BnTvInput {
+  public:
+    TvInput();
+
+    ::ndk::ScopedAStatus setCallback(const shared_ptr<ITvInputCallback>& in_callback) override;
+    ::ndk::ScopedAStatus getStreamConfigurations(int32_t in_deviceId,
+                                                 vector<TvStreamConfig>* _aidl_return) override;
+    ::ndk::ScopedAStatus openStream(int32_t in_deviceId, int32_t in_streamId,
+                                    NativeHandle* _aidl_return) override;
+    ::ndk::ScopedAStatus closeStream(int32_t in_deviceId, int32_t in_streamId) override;
+
+    void init();
+
+  private:
+    native_handle_t* createNativeHandle(int fd);
+    void releaseNativeHandle(native_handle_t* handle);
+
+    shared_ptr<ITvInputCallback> mCallback;
+    map<int32_t, shared_ptr<TvInputDeviceInfoWrapper>> mDeviceInfos;
+    map<int32_t, map<int32_t, shared_ptr<TvStreamConfigWrapper>>> mStreamConfigs;
+};
+
+}  // namespace input
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

tv/input/aidl/default/TvInputDeviceInfoWrapper.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2022 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/tv/input/TvInputDeviceInfo.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace tv {
+namespace input {
+
+class TvInputDeviceInfoWrapper {
+  public:
+    TvInputDeviceInfoWrapper() {}
+    TvInputDeviceInfoWrapper(int32_t deviceId_, TvInputType type_, bool isAvailable_) {
+        deviceInfo.deviceId = deviceId_;
+        deviceInfo.type = type_;
+        isAvailable = isAvailable_;
+    }
+
+    TvInputDeviceInfo deviceInfo;
+    bool isAvailable;
+};
+}  // namespace input
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

tv/input/aidl/default/TvStreamConfigWrapper.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2022 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/tv/input/TvStreamConfig.h>
+#include <aidlcommonsupport/NativeHandle.h>
+
+using namespace std;
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace tv {
+namespace input {
+
+class TvStreamConfigWrapper {
+  public:
+    TvStreamConfigWrapper() {}
+    TvStreamConfigWrapper(int32_t streamId_, int32_t maxVideoWidth_, int32_t maxVideoHeight_,
+                          bool isOpen_) {
+        streamConfig.streamId = streamId_;
+        streamConfig.maxVideoWidth = maxVideoWidth_;
+        streamConfig.maxVideoHeight = maxVideoHeight_;
+        isOpen = isOpen_;
+        handle = nullptr;
+    }
+
+    TvStreamConfig streamConfig;
+    bool isOpen;
+    native_handle_t* handle;
+};
+}  // namespace input
+}  // namespace tv
+}  // namespace hardware
+}  // namespace android
+}  // namespace aidl

tv/input/aidl/default/input-default.rc

@@ -0,0 +1,5 @@
+service vendor.input-default /vendor/bin/hw/android.hardware.tv.input-service.example
+    interface aidl android.hardware.tv.input.ITvInput/default
+    class hal
+    user system
+    group system

tv/input/aidl/default/input-default.xml

@@ -0,0 +1,6 @@
+<manifest version="1.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.tv.input</name>
+        <fqname>ITvInput/default</fqname>
+    </hal>
+</manifest>

tv/input/aidl/default/service.cpp

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2022 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 "android.hardware.tv.input-service.example"
+
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <utils/Log.h>
+
+#include "TvInput.h"
+
+using ::aidl::android::hardware::tv::input::TvInput;
+
+int main() {
+    ABinderProcess_setThreadPoolMaxThreadCount(8);
+    std::shared_ptr<TvInput> tvInput = ndk::SharedRefBase::make<TvInput>();
+    tvInput->init();
+
+    const std::string instance = std::string() + TvInput::descriptor + "/default";
+    binder_status_t status =
+            AServiceManager_addService(tvInput->asBinder().get(), instance.c_str());
+    CHECK(status == STATUS_OK);
+
+    ABinderProcess_joinThreadPool();
+    return EXIT_FAILURE;  // should not reached
+}