Add AIDL implementation for the vendor HAL service.
Bug: 205044134
Test: Pass AIDL VTS tests and regression tests.
Change-Id: Iad04ce01f71fc220443e05a4be05d7d5545227e8
diff --git a/wifi/aidl/default/wifi.h b/wifi/aidl/default/wifi.h
new file mode 100644
index 0000000..9334524
--- /dev/null
+++ b/wifi/aidl/default/wifi.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 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.
+ */
+
+#ifndef WIFI_H_
+#define WIFI_H_
+
+#include <aidl/android/hardware/wifi/BnWifi.h>
+#include <android-base/macros.h>
+#include <utils/Looper.h>
+
+#include <functional>
+
+#include "aidl_callback_util.h"
+#include "wifi_chip.h"
+#include "wifi_feature_flags.h"
+#include "wifi_legacy_hal.h"
+#include "wifi_legacy_hal_factory.h"
+#include "wifi_mode_controller.h"
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace wifi {
+
+/**
+ * Root AIDL interface object used to control the Wifi HAL.
+ */
+class Wifi : public BnWifi {
+ public:
+ Wifi(const std::shared_ptr<::android::wifi_system::InterfaceTool> iface_tool,
+ const std::shared_ptr<legacy_hal::WifiLegacyHalFactory> legacy_hal_factory,
+ const std::shared_ptr<mode_controller::WifiModeController> mode_controller,
+ const std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags);
+
+ bool isValid();
+
+ // AIDL methods exposed.
+ ndk::ScopedAStatus registerEventCallback(
+ const std::shared_ptr<IWifiEventCallback>& in_callback) override;
+ ndk::ScopedAStatus isStarted(bool* _aidl_return) override;
+ ndk::ScopedAStatus start() override;
+ ndk::ScopedAStatus stop() override;
+ ndk::ScopedAStatus getChipIds(std::vector<int32_t>* _aidl_return) override;
+ ndk::ScopedAStatus getChip(int32_t in_chipId,
+ std::shared_ptr<IWifiChip>* _aidl_return) override;
+ binder_status_t dump(int fd, const char** args, uint32_t numArgs) override;
+
+ private:
+ enum class RunState { STOPPED, STARTED, STOPPING };
+
+ // Corresponding worker functions for the AIDL methods.
+ ndk::ScopedAStatus registerEventCallbackInternal(
+ const std::shared_ptr<IWifiEventCallback>& event_callback __unused);
+ ndk::ScopedAStatus startInternal();
+ ndk::ScopedAStatus stopInternal(std::unique_lock<std::recursive_mutex>* lock);
+ std::pair<std::vector<int32_t>, ndk::ScopedAStatus> getChipIdsInternal();
+ std::pair<std::shared_ptr<IWifiChip>, ndk::ScopedAStatus> getChipInternal(int32_t chip_id);
+
+ ndk::ScopedAStatus initializeModeControllerAndLegacyHal();
+ ndk::ScopedAStatus stopLegacyHalAndDeinitializeModeController(
+ std::unique_lock<std::recursive_mutex>* lock);
+ int32_t getChipIdFromWifiChip(std::shared_ptr<WifiChip>& chip);
+
+ // Instance is created in this root level |IWifi| AIDL interface object
+ // and shared with all the child AIDL interface objects.
+ std::shared_ptr<::android::wifi_system::InterfaceTool> iface_tool_;
+ std::shared_ptr<legacy_hal::WifiLegacyHalFactory> legacy_hal_factory_;
+ std::shared_ptr<mode_controller::WifiModeController> mode_controller_;
+ std::vector<std::shared_ptr<legacy_hal::WifiLegacyHal>> legacy_hals_;
+ std::shared_ptr<feature_flags::WifiFeatureFlags> feature_flags_;
+ RunState run_state_;
+ std::vector<std::shared_ptr<WifiChip>> chips_;
+ aidl_callback_util::AidlCallbackHandler<IWifiEventCallback> event_cb_handler_;
+
+ DISALLOW_COPY_AND_ASSIGN(Wifi);
+};
+
+} // namespace wifi
+} // namespace hardware
+} // namespace android
+} // namespace aidl
+
+#endif // WIFI_H_