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      1 //
      2 // Copyright 2016 The Android Open Source Project
      3 //
      4 // Licensed under the Apache License, Version 2.0 (the "License");
      5 // you may not use this file except in compliance with the License.
      6 // You may obtain a copy of the License at
      7 //
      8 // http://www.apache.org/licenses/LICENSE-2.0
      9 //
     10 // Unless required by applicable law or agreed to in writing, software
     11 // distributed under the License is distributed on an "AS IS" BASIS,
     12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 // See the License for the specific language governing permissions and
     14 // limitations under the License.
     15 //
     16 
     17 #pragma once
     18 
     19 #include <hidl/HidlSupport.h>
     20 
     21 #include "async_fd_watcher.h"
     22 #include "bt_vendor_lib.h"
     23 #include "hci_protocol.h"
     24 
     25 namespace android {
     26 namespace hardware {
     27 namespace bluetooth {
     28 namespace V1_0 {
     29 namespace implementation {
     30 
     31 using ::android::hardware::hidl_vec;
     32 using InitializeCompleteCallback = std::function<void(bool success)>;
     33 using PacketReadCallback = std::function<void(const hidl_vec<uint8_t>&)>;
     34 
     35 class FirmwareStartupTimer;
     36 
     37 class VendorInterface {
     38  public:
     39   static bool Initialize(InitializeCompleteCallback initialize_complete_cb,
     40                          PacketReadCallback event_cb, PacketReadCallback acl_cb,
     41                          PacketReadCallback sco_cb);
     42   static void Shutdown();
     43   static VendorInterface *get();
     44 
     45   size_t Send(uint8_t type, const uint8_t *data, size_t length);
     46 
     47   void OnFirmwareConfigured(uint8_t result);
     48 
     49  private:
     50   virtual ~VendorInterface() = default;
     51 
     52   bool Open(InitializeCompleteCallback initialize_complete_cb,
     53             PacketReadCallback event_cb, PacketReadCallback acl_cb,
     54             PacketReadCallback sco_cb);
     55   void Close();
     56 
     57   void OnTimeout();
     58 
     59   void HandleIncomingEvent(const hidl_vec<uint8_t>& hci_packet);
     60 
     61   void *lib_handle_;
     62   bt_vendor_interface_t *lib_interface_;
     63   async::AsyncFdWatcher fd_watcher_;
     64   InitializeCompleteCallback initialize_complete_cb_;
     65   hci::HciProtocol* hci_;
     66 
     67   PacketReadCallback event_cb_;
     68 
     69   FirmwareStartupTimer *firmware_startup_timer_;
     70 };
     71 
     72 }  // namespace implementation
     73 }  // namespace V1_0
     74 }  // namespace bluetooth
     75 }  // namespace hardware
     76 }  // namespace android
     77