upload android base code part6

android/device/linaro/hikey/bluetooth/h4_protocol.h

@@ -0,0 +1,60 @@
+//
+// Copyright 2017 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 <hidl/HidlSupport.h>
+
+#include "async_fd_watcher.h"
+#include "hci_internals.h"
+#include "hci_protocol.h"
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace hci {
+
+class H4Protocol : public HciProtocol {
+ public:
+  H4Protocol(int fd, PacketReadCallback event_cb, PacketReadCallback acl_cb,
+             PacketReadCallback sco_cb)
+      : uart_fd_(fd),
+        event_cb_(event_cb),
+        acl_cb_(acl_cb),
+        sco_cb_(sco_cb),
+        hci_packetizer_([this]() { OnPacketReady(); }) {}
+
+  size_t Send(uint8_t type, const uint8_t* data, size_t length);
+
+  void OnPacketReady();
+
+  void OnDataReady(int fd);
+
+ private:
+  int uart_fd_;
+
+  PacketReadCallback event_cb_;
+  PacketReadCallback acl_cb_;
+  PacketReadCallback sco_cb_;
+
+  HciPacketType hci_packet_type_{HCI_PACKET_TYPE_UNKNOWN};
+  hci::HciPacketizer hci_packetizer_;
+};
+
+}  // namespace hci
+}  // namespace bluetooth
+}  // namespace hardware
+}  // namespace android