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      1 /******************************************************************************
      2  *
      3  *  Copyright (C) 2016 The Android Open Source Project
      4  *
      5  *  Licensed under the Apache License, Version 2.0 (the "License");
      6  *  you may not use this file except in compliance with the License.
      7  *  You may obtain a copy of the License at:
      8  *
      9  *  http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  *  Unless required by applicable law or agreed to in writing, software
     12  *  distributed under the License is distributed on an "AS IS" BASIS,
     13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  *  See the License for the specific language governing permissions and
     15  *  limitations under the License.
     16  *
     17  ******************************************************************************/
     18 
     19 #ifndef BLE_ADVERTISER_HCI_INTERFACE_H
     20 #define BLE_ADVERTISER_HCI_INTERFACE_H
     21 
     22 #include <base/bind.h>
     23 #include "stack/include/bt_types.h"
     24 
     25 /* This class is an abstraction of HCI commands used for managing
     26  * advertisements. Please see VSC HCI SPEC at
     27  * https://static.googleusercontent.com/media/source.android.com/en//devices/Android-6.0-Bluetooth-HCI-Reqs.pdf
     28  * and Bluetooth 5.0 "Advertising Extension" feature for more details  */
     29 class BleAdvertiserHciInterface {
     30  public:
     31   using status_cb = base::Callback<void(uint8_t /* status */)>;
     32   using parameters_cb =
     33       base::Callback<void(uint8_t /* status */, int8_t /* tx_power */)>;
     34 
     35   static void Initialize();
     36   static BleAdvertiserHciInterface* Get();
     37   static void CleanUp();
     38 
     39   virtual ~BleAdvertiserHciInterface() = default;
     40 
     41   class AdvertisingEventObserver {
     42    public:
     43     virtual ~AdvertisingEventObserver() = default;
     44     virtual void OnAdvertisingSetTerminated(
     45         uint8_t status, uint8_t advertising_handle, uint16_t connection_handle,
     46         uint8_t num_completed_extended_adv_events) = 0;
     47   };
     48 
     49   virtual void SetAdvertisingEventObserver(
     50       AdvertisingEventObserver* observer) = 0;
     51   virtual void ReadInstanceCount(
     52       base::Callback<void(uint8_t /* inst_cnt*/)> cb) = 0;
     53   virtual void SetParameters(uint8_t handle, uint16_t properties,
     54                              uint32_t adv_int_min, uint32_t adv_int_max,
     55                              uint8_t channel_map, uint8_t own_address_type,
     56                              BD_ADDR own_address, uint8_t peer_address_type,
     57                              BD_ADDR peer_address, uint8_t filter_policy,
     58                              int8_t tx_power, uint8_t primary_phy,
     59                              uint8_t secondary_max_skip, uint8_t secondary_phy,
     60                              uint8_t advertising_sid,
     61                              uint8_t scan_request_notify_enable,
     62                              parameters_cb command_complete) = 0;
     63   virtual void SetAdvertisingData(uint8_t handle, uint8_t operation,
     64                                   uint8_t fragment_preference,
     65                                   uint8_t data_length, uint8_t* data,
     66                                   status_cb command_complete) = 0;
     67   virtual void SetScanResponseData(uint8_t handle, uint8_t operation,
     68                                    uint8_t fragment_preference,
     69                                    uint8_t scan_response_data_length,
     70                                    uint8_t* scan_response_data,
     71                                    status_cb command_complete) = 0;
     72   virtual void SetRandomAddress(uint8_t handle, BD_ADDR random_address,
     73                                 status_cb command_complete) = 0;
     74   virtual void Enable(uint8_t enable, uint8_t handle, uint16_t duration,
     75                       uint8_t max_extended_advertising_events,
     76                       status_cb command_complete) = 0;
     77   virtual void SetPeriodicAdvertisingParameters(uint8_t handle,
     78                                                 uint16_t periodic_adv_int_min,
     79                                                 uint16_t periodic_adv_int_max,
     80                                                 uint16_t periodic_properties,
     81                                                 status_cb command_complete) = 0;
     82   virtual void SetPeriodicAdvertisingData(uint8_t handle, uint8_t operation,
     83                                           uint8_t adv_data_length,
     84                                           uint8_t* adv_data,
     85                                           status_cb command_complete) = 0;
     86   virtual void SetPeriodicAdvertisingEnable(uint8_t enable, uint8_t handle,
     87                                             status_cb command_complete) = 0;
     88   virtual void RemoveAdvertisingSet(uint8_t handle,
     89                                     status_cb command_complete) = 0;
     90 
     91   // Some implementation don't behave well when handle value 0 is used.
     92   virtual bool QuirkAdvertiserZeroHandle() { return 0; }
     93 };
     94 
     95 #endif  // BLE_ADVERTISER_HCI_INTERFACE_H
     96