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      1 /******************************************************************************
      2  *
      3  *  Copyright 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_H
     20 #define BLE_ADVERTISER_H
     21 
     22 #include <base/bind.h>
     23 #include <base/memory/weak_ptr.h>
     24 #include <vector>
     25 #include "btm_ble_api.h"
     26 
     27 #define BTM_BLE_MULTI_ADV_SUCCESS 0
     28 #define BTM_BLE_MULTI_ADV_FAILURE 1
     29 #define ADVERTISE_FAILED_TOO_MANY_ADVERTISERS 0x02
     30 
     31 using MultiAdvCb = base::Callback<void(uint8_t /* status */)>;
     32 using ParametersCb =
     33     base::Callback<void(uint8_t /* status */, int8_t /* tx_power */)>;
     34 
     35 // methods we must have defined
     36 void btm_ble_update_dmt_flag_bits(uint8_t* flag_value,
     37                                   const uint16_t connect_mode,
     38                                   const uint16_t disc_mode);
     39 void btm_acl_update_conn_addr(uint16_t conn_handle, const RawAddress& address);
     40 
     41 // methods we expose to c code:
     42 void btm_ble_multi_adv_cleanup(void);
     43 void btm_ble_multi_adv_init();
     44 
     45 typedef struct {
     46   uint16_t advertising_event_properties;
     47   uint32_t adv_int_min;
     48   uint32_t adv_int_max;
     49   tBTM_BLE_ADV_CHNL_MAP channel_map;
     50   tBTM_BLE_AFP adv_filter_policy;
     51   int8_t tx_power;
     52   uint8_t primary_advertising_phy;
     53   uint8_t secondary_advertising_phy;
     54   uint8_t scan_request_notification_enable;
     55 } tBTM_BLE_ADV_PARAMS;
     56 
     57 typedef struct {
     58   uint8_t enable;
     59   uint16_t min_interval;
     60   uint16_t max_interval;
     61   uint16_t periodic_advertising_properties;
     62 } tBLE_PERIODIC_ADV_PARAMS;
     63 
     64 class BleAdvertiserHciInterface;
     65 
     66 class BleAdvertisingManager {
     67  public:
     68   virtual ~BleAdvertisingManager() = default;
     69 
     70   static const uint16_t advertising_prop_legacy_connectable = 0x0011;
     71   static const uint16_t advertising_prop_legacy_non_connectable = 0x0010;
     72 
     73   static void Initialize(BleAdvertiserHciInterface* interface);
     74   static void CleanUp();
     75   static bool IsInitialized();
     76   static base::WeakPtr<BleAdvertisingManager> Get();
     77 
     78   /* Register an advertising instance, status will be returned in |cb|
     79    * callback, with assigned id, if operation succeeds. Instance is freed when
     80    * advertising is disabled by calling |BTM_BleDisableAdvInstance|, or when any
     81    * of the operations fails.
     82    * The instance will have data set to |advertise_data|, scan response set to
     83    * |scan_response_data|, and will be enabled.
     84    */
     85   virtual void StartAdvertising(uint8_t advertiser_id, MultiAdvCb cb,
     86                                 tBTM_BLE_ADV_PARAMS* params,
     87                                 std::vector<uint8_t> advertise_data,
     88                                 std::vector<uint8_t> scan_response_data,
     89                                 int duration, MultiAdvCb timeout_cb) = 0;
     90 
     91   /* Register an advertising instance, status will be returned in |cb|
     92    * callback, with assigned id, if operation succeeds. Instance is freed when
     93    * advertising is disabled by calling |BTM_BleDisableAdvInstance|, or when any
     94    * of the operations fails.
     95    * The instance will have data set to |advertise_data|, scan response set to
     96    * |scan_response_data|, periodic data set to |periodic_data| and will be
     97    * enabled.
     98    */
     99   virtual void StartAdvertisingSet(
    100       base::Callback<void(uint8_t /* inst_id */, int8_t /* tx_power */,
    101                           uint8_t /* status */)>
    102           cb,
    103       tBTM_BLE_ADV_PARAMS* params, std::vector<uint8_t> advertise_data,
    104       std::vector<uint8_t> scan_response_data,
    105       tBLE_PERIODIC_ADV_PARAMS* periodic_params,
    106       std::vector<uint8_t> periodic_data, uint16_t duration,
    107       uint8_t maxExtAdvEvents,
    108       base::Callback<void(uint8_t /* inst_id */, uint8_t /* status */)>
    109           timeout_cb) = 0;
    110 
    111   /* Register an advertising instance, status will be returned in |cb|
    112    * callback, with assigned id, if operation succeeds. Instance is freed when
    113    * advertising is disabled by calling |BTM_BleDisableAdvInstance|, or when any
    114    * of the operations fails. */
    115   virtual void RegisterAdvertiser(
    116       base::Callback<void(uint8_t /* inst_id */, uint8_t /* status */)>) = 0;
    117 
    118   /* This function enables/disables an advertising instance. Operation status is
    119    * returned in |cb| */
    120   virtual void Enable(uint8_t inst_id, bool enable, MultiAdvCb cb,
    121                       uint16_t duration, uint8_t maxExtAdvEvents,
    122                       MultiAdvCb timeout_cb) = 0;
    123 
    124   /* This function update a Multi-ADV instance with the specififed adv
    125    * parameters. */
    126   virtual void SetParameters(uint8_t inst_id, tBTM_BLE_ADV_PARAMS* p_params,
    127                              ParametersCb cb) = 0;
    128 
    129   /* This function configure a Multi-ADV instance with the specified adv data or
    130    * scan response data.*/
    131   virtual void SetData(uint8_t inst_id, bool is_scan_rsp,
    132                        std::vector<uint8_t> data, MultiAdvCb cb) = 0;
    133 
    134   /* This function configure instance with the specified periodic parameters */
    135   virtual void SetPeriodicAdvertisingParameters(
    136       uint8_t inst_id, tBLE_PERIODIC_ADV_PARAMS* params, MultiAdvCb cb) = 0;
    137 
    138   /* This function configure instance with the specified periodic data */
    139   virtual void SetPeriodicAdvertisingData(uint8_t inst_id,
    140                                           std::vector<uint8_t> data,
    141                                           MultiAdvCb cb) = 0;
    142 
    143   /* This function enables/disables periodic advertising on selected instance */
    144   virtual void SetPeriodicAdvertisingEnable(uint8_t inst_id, uint8_t enable,
    145                                             MultiAdvCb cb) = 0;
    146 
    147   /*  This function disable a Multi-ADV instance */
    148   virtual void Unregister(uint8_t inst_id) = 0;
    149 
    150   /* When resolving list is used, we need to suspend and resume all advertising
    151    * instances for the time of operation. Suspend() saves current state,
    152    * Resume() resumes the advertising.
    153    */
    154   virtual void Suspend() = 0;
    155   virtual void Resume() = 0;
    156 
    157   /* This method is a member of BleAdvertiserHciInterface, and is exposed here
    158    * just for tests. It should never be called from upper layers*/
    159   virtual void OnAdvertisingSetTerminated(
    160       uint8_t status, uint8_t advertising_handle, uint16_t connection_handle,
    161       uint8_t num_completed_extended_adv_events) = 0;
    162 
    163   using GetAddressCallback =
    164       base::Callback<void(uint8_t /* address_type*/, RawAddress /*address*/)>;
    165   virtual void GetOwnAddress(uint8_t inst_id, GetAddressCallback cb) = 0;
    166 };
    167 
    168 #endif  // BLE_ADVERTISER_H
    169