Bluetooth HAL: Add an AIDL default implementation
Bug: 205758693
Test: VtsHalBluetoothTargetTest
Change-Id: Ie8839e38448a309f2e6616d852026066b6c6c064
diff --git a/bluetooth/aidl/default/BluetoothHci.h b/bluetooth/aidl/default/BluetoothHci.h
new file mode 100644
index 0000000..0ed0623
--- /dev/null
+++ b/bluetooth/aidl/default/BluetoothHci.h
@@ -0,0 +1,71 @@
+/*
+ * 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/bluetooth/BnBluetoothHci.h>
+#include <aidl/android/hardware/bluetooth/IBluetoothHciCallbacks.h>
+#include <log/log.h>
+
+#include <string>
+
+#include "async_fd_watcher.h"
+#include "h4_protocol.h"
+
+namespace aidl::android::hardware::bluetooth::impl {
+
+class BluetoothDeathRecipient;
+
+// This Bluetooth HAL implementation connects with a serial port at dev_path_.
+class BluetoothHci : public BnBluetoothHci {
+ public:
+ BluetoothHci(const std::string& dev_path = "/dev/hvc5");
+
+ ndk::ScopedAStatus initialize(
+ const std::shared_ptr<IBluetoothHciCallbacks>& cb) override;
+
+ ndk::ScopedAStatus sendHciCommand(
+ const std::vector<uint8_t>& packet) override;
+
+ ndk::ScopedAStatus sendAclData(const std::vector<uint8_t>& packet) override;
+
+ ndk::ScopedAStatus sendScoData(const std::vector<uint8_t>& packet) override;
+
+ ndk::ScopedAStatus sendIsoData(const std::vector<uint8_t>& packet) override;
+
+ ndk::ScopedAStatus close() override;
+
+ static void OnPacketReady();
+
+ static BluetoothHci* get();
+
+ private:
+ int mFd{-1};
+ std::shared_ptr<IBluetoothHciCallbacks> mCb = nullptr;
+
+ std::shared_ptr<::android::hardware::bluetooth::hci::H4Protocol> mH4;
+
+ std::shared_ptr<BluetoothDeathRecipient> mDeathRecipient;
+
+ std::string mDevPath;
+
+ ::android::hardware::bluetooth::async::AsyncFdWatcher mFdWatcher;
+
+ void send(::android::hardware::bluetooth::hci::PacketType type,
+ const std::vector<uint8_t>& packet);
+};
+
+} // namespace aidl::android::hardware::bluetooth::impl