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      1 /******************************************************************************
      2  *
      3  *  Copyright 2016 Google Inc.
      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 #define LOG_TAG "bt_btif_ble_advertiser"
     20 
     21 #include <hardware/bluetooth.h>
     22 #include <hardware/bt_gatt.h>
     23 
     24 #include <base/bind.h>
     25 #include <vector>
     26 
     27 #include "ble_advertiser.h"
     28 #include "bta_closure_api.h"
     29 #include "btif_common.h"
     30 
     31 using base::Bind;
     32 using base::Owned;
     33 using std::vector;
     34 
     35 namespace {
     36 
     37 template <typename T>
     38 class OwnedArrayWrapper {
     39  public:
     40   explicit OwnedArrayWrapper(T* o) : ptr_(o) {}
     41   ~OwnedArrayWrapper() { delete[] ptr_; }
     42   T* get() const { return ptr_; }
     43   OwnedArrayWrapper(OwnedArrayWrapper&& other) {
     44     ptr_ = other.ptr_;
     45     other.ptr_ = NULL;
     46   }
     47 
     48  private:
     49   mutable T* ptr_;
     50 };
     51 
     52 template <typename T>
     53 T* Unwrap(const OwnedArrayWrapper<T>& o) {
     54   return o.get();
     55 }
     56 
     57 template <typename T>
     58 static inline OwnedArrayWrapper<T> OwnedArray(T* o) {
     59   return OwnedArrayWrapper<T>(o);
     60 }
     61 
     62 void parseParams(tBTM_BLE_ADV_PARAMS* p_params,
     63                  const AdvertiseParameters& params) {
     64   p_params->advertising_event_properties = params.advertising_event_properties;
     65   p_params->adv_int_min = params.min_interval;
     66   p_params->adv_int_max = params.max_interval;
     67   p_params->channel_map = params.channel_map;
     68   p_params->adv_filter_policy = 0;
     69   p_params->tx_power = params.tx_power;
     70   p_params->primary_advertising_phy = params.primary_advertising_phy;
     71   p_params->secondary_advertising_phy = params.secondary_advertising_phy;
     72   p_params->scan_request_notification_enable =
     73       params.scan_request_notification_enable;
     74 }
     75 
     76 void parsePeriodicParams(tBLE_PERIODIC_ADV_PARAMS* p_periodic_params,
     77                          PeriodicAdvertisingParameters periodic_params) {
     78   p_periodic_params->enable = periodic_params.enable;
     79   p_periodic_params->min_interval = periodic_params.min_interval;
     80   p_periodic_params->max_interval = periodic_params.max_interval;
     81   p_periodic_params->periodic_advertising_properties =
     82       periodic_params.periodic_advertising_properties;
     83 }
     84 
     85 class BleAdvertiserInterfaceImpl : public BleAdvertiserInterface {
     86   ~BleAdvertiserInterfaceImpl(){};
     87 
     88   void RegisterAdvertiserCb(IdStatusCallback cb, uint8_t advertiser_id,
     89                             uint8_t status) {
     90     LOG(INFO) << __func__ << " status: " << +status
     91               << " , adveriser_id: " << +advertiser_id;
     92     do_in_jni_thread(Bind(cb, advertiser_id, status));
     93   }
     94 
     95   void RegisterAdvertiser(IdStatusCallback cb) override {
     96     do_in_bta_thread(
     97         FROM_HERE, Bind(&BleAdvertisingManager::RegisterAdvertiser,
     98                         BleAdvertisingManager::Get(),
     99                         Bind(&BleAdvertiserInterfaceImpl::RegisterAdvertiserCb,
    100                              base::Unretained(this), cb)));
    101   }
    102 
    103   void Unregister(uint8_t advertiser_id) override {
    104     do_in_bta_thread(
    105         FROM_HERE,
    106         Bind(
    107             [](uint8_t advertiser_id) {
    108               if (!BleAdvertisingManager::IsInitialized()) {
    109                 LOG(WARNING) << "Stack already shutdown";
    110                 return;
    111               }
    112               BleAdvertisingManager::Get()->Unregister(advertiser_id);
    113             },
    114             advertiser_id));
    115   }
    116 
    117   void GetOwnAddress(uint8_t advertiser_id, GetAddressCallback cb) override {
    118     if (!BleAdvertisingManager::IsInitialized()) return;
    119     do_in_bta_thread(FROM_HERE,
    120                      Bind(&BleAdvertisingManager::GetOwnAddress,
    121                           BleAdvertisingManager::Get(), advertiser_id,
    122                           jni_thread_wrapper(FROM_HERE, cb)));
    123   }
    124 
    125   void SetParameters(uint8_t advertiser_id, AdvertiseParameters params,
    126                      ParametersCallback cb) override {
    127     VLOG(1) << __func__;
    128 
    129     if (!BleAdvertisingManager::IsInitialized()) return;
    130     tBTM_BLE_ADV_PARAMS* p_params = new tBTM_BLE_ADV_PARAMS;
    131     parseParams(p_params, params);
    132 
    133     do_in_bta_thread(FROM_HERE, Bind(&BleAdvertisingManager::SetParameters,
    134                                      BleAdvertisingManager::Get(),
    135                                      advertiser_id, base::Owned(p_params),
    136                                      jni_thread_wrapper(FROM_HERE, cb)));
    137   }
    138 
    139   void SetData(int advertiser_id, bool set_scan_rsp, vector<uint8_t> data,
    140                StatusCallback cb) override {
    141     if (!BleAdvertisingManager::IsInitialized()) return;
    142     do_in_bta_thread(
    143         FROM_HERE,
    144         Bind(&BleAdvertisingManager::SetData, BleAdvertisingManager::Get(),
    145              advertiser_id, set_scan_rsp, std::move(data),
    146              jni_thread_wrapper(FROM_HERE, cb)));
    147   }
    148 
    149   void Enable(uint8_t advertiser_id, bool enable, StatusCallback cb,
    150               uint16_t duration, uint8_t maxExtAdvEvents,
    151               StatusCallback timeout_cb) override {
    152     VLOG(1) << __func__ << " advertiser_id: " << +advertiser_id
    153             << " ,enable: " << enable;
    154 
    155     if (!BleAdvertisingManager::IsInitialized()) return;
    156     do_in_bta_thread(
    157         FROM_HERE,
    158         Bind(&BleAdvertisingManager::Enable, BleAdvertisingManager::Get(),
    159              advertiser_id, enable, jni_thread_wrapper(FROM_HERE, cb), duration,
    160              maxExtAdvEvents, jni_thread_wrapper(FROM_HERE, timeout_cb)));
    161   }
    162 
    163   void StartAdvertising(uint8_t advertiser_id, StatusCallback cb,
    164                         AdvertiseParameters params,
    165                         std::vector<uint8_t> advertise_data,
    166                         std::vector<uint8_t> scan_response_data, int timeout_s,
    167                         MultiAdvCb timeout_cb) override {
    168     VLOG(1) << __func__;
    169 
    170     if (!BleAdvertisingManager::IsInitialized()) return;
    171     tBTM_BLE_ADV_PARAMS* p_params = new tBTM_BLE_ADV_PARAMS;
    172     parseParams(p_params, params);
    173 
    174     do_in_bta_thread(
    175         FROM_HERE,
    176         Bind(&BleAdvertisingManager::StartAdvertising,
    177              BleAdvertisingManager::Get(), advertiser_id,
    178              jni_thread_wrapper(FROM_HERE, cb), base::Owned(p_params),
    179              std::move(advertise_data), std::move(scan_response_data),
    180              timeout_s * 100, jni_thread_wrapper(FROM_HERE, timeout_cb)));
    181   }
    182 
    183   void StartAdvertisingSet(IdTxPowerStatusCallback cb,
    184                            AdvertiseParameters params,
    185                            std::vector<uint8_t> advertise_data,
    186                            std::vector<uint8_t> scan_response_data,
    187                            PeriodicAdvertisingParameters periodic_params,
    188                            std::vector<uint8_t> periodic_data,
    189                            uint16_t duration, uint8_t maxExtAdvEvents,
    190                            IdStatusCallback timeout_cb) override {
    191     VLOG(1) << __func__;
    192 
    193     if (!BleAdvertisingManager::IsInitialized()) return;
    194     tBTM_BLE_ADV_PARAMS* p_params = new tBTM_BLE_ADV_PARAMS;
    195     parseParams(p_params, params);
    196 
    197     tBLE_PERIODIC_ADV_PARAMS* p_periodic_params = new tBLE_PERIODIC_ADV_PARAMS;
    198     parsePeriodicParams(p_periodic_params, periodic_params);
    199 
    200     do_in_bta_thread(
    201         FROM_HERE,
    202         Bind(&BleAdvertisingManager::StartAdvertisingSet,
    203              BleAdvertisingManager::Get(), jni_thread_wrapper(FROM_HERE, cb),
    204              base::Owned(p_params), std::move(advertise_data),
    205              std::move(scan_response_data), base::Owned(p_periodic_params),
    206              std::move(periodic_data), duration, maxExtAdvEvents,
    207              jni_thread_wrapper(FROM_HERE, timeout_cb)));
    208   }
    209 
    210   void SetPeriodicAdvertisingParameters(
    211       int advertiser_id, PeriodicAdvertisingParameters periodic_params,
    212       StatusCallback cb) override {
    213     VLOG(1) << __func__ << " advertiser_id: " << +advertiser_id;
    214 
    215     if (!BleAdvertisingManager::IsInitialized()) return;
    216     tBLE_PERIODIC_ADV_PARAMS* p_periodic_params = new tBLE_PERIODIC_ADV_PARAMS;
    217     parsePeriodicParams(p_periodic_params, periodic_params);
    218 
    219     do_in_bta_thread(
    220         FROM_HERE,
    221         Bind(&BleAdvertisingManager::SetPeriodicAdvertisingParameters,
    222              BleAdvertisingManager::Get(), advertiser_id,
    223              base::Owned(p_periodic_params),
    224              jni_thread_wrapper(FROM_HERE, cb)));
    225   }
    226 
    227   void SetPeriodicAdvertisingData(int advertiser_id, std::vector<uint8_t> data,
    228                                   StatusCallback cb) override {
    229     VLOG(1) << __func__ << " advertiser_id: " << +advertiser_id;
    230 
    231     if (!BleAdvertisingManager::IsInitialized()) return;
    232     do_in_bta_thread(FROM_HERE,
    233                      Bind(&BleAdvertisingManager::SetPeriodicAdvertisingData,
    234                           BleAdvertisingManager::Get(), advertiser_id,
    235                           std::move(data), jni_thread_wrapper(FROM_HERE, cb)));
    236   }
    237 
    238   void SetPeriodicAdvertisingEnable(int advertiser_id, bool enable,
    239                                     StatusCallback cb) override {
    240     VLOG(1) << __func__ << " advertiser_id: " << +advertiser_id
    241             << " ,enable: " << enable;
    242 
    243     if (!BleAdvertisingManager::IsInitialized()) return;
    244     do_in_bta_thread(FROM_HERE,
    245                      Bind(&BleAdvertisingManager::SetPeriodicAdvertisingEnable,
    246                           BleAdvertisingManager::Get(), advertiser_id, enable,
    247                           jni_thread_wrapper(FROM_HERE, cb)));
    248   }
    249 };
    250 
    251 BleAdvertiserInterface* btLeAdvertiserInstance = nullptr;
    252 
    253 }  // namespace
    254 
    255 BleAdvertiserInterface* get_ble_advertiser_instance() {
    256   if (btLeAdvertiserInstance == nullptr)
    257     btLeAdvertiserInstance = new BleAdvertiserInterfaceImpl();
    258 
    259   return btLeAdvertiserInstance;
    260 }
    261