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, PacketReadCallback iso_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, PacketReadCallback iso_cb);
55   void Close();
56 
57   void OnTimeout();
58 
59   void HandleIncomingEvent(const hidl_vec<uint8_t>& hci_packet);
60 
61   void* lib_handle_ = nullptr;
62   bt_vendor_interface_t* lib_interface_ = nullptr;
63   async::AsyncFdWatcher fd_watcher_;
64   InitializeCompleteCallback initialize_complete_cb_;
65   hci::HciProtocol* hci_ = nullptr;
66 
67   PacketReadCallback event_cb_;
68 
69   FirmwareStartupTimer* firmware_startup_timer_ = nullptr;
70 };
71 
72 }  // namespace implementation
73 }  // namespace V1_0
74 }  // namespace bluetooth
75 }  // namespace hardware
76 }  // namespace android
77