Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 725f5e43 authored by Yuyang Huang's avatar Yuyang Huang
Browse files

add implementation for getAdvertisementServiceData 

This targets to expose ASHA service data to settingLib

Test: manual
Tag: #feature
Bug: 265027285
Change-Id: Ibf94d864c74c773bcf4c88722f787d401703d3ad
parent c6449d01

system/btif/src/btif_dm.cc

+56 −2
Original line number Diff line number Diff line
@@ -320,6 +320,56 @@ bt_status_t btif_in_execute_service_request(tBTA_SERVICE_ID service_id, 
  return GetInterfaceToProfiles()->toggleProfile(service_id, b_enable);

}



/**

 * Helper method to get asha advertising service data

 * @param inq_res {@code tBTA_DM_INQ_RES} inquiry result

 * @param asha_capability value will be updated as non-negative if found,

 * otherwise return -1

 * @param asha_truncated_hi_sync_id value will be updated if found, otherwise no

 * change

 */

static void get_asha_service_data(const tBTA_DM_INQ_RES& inq_res,

                                  int16_t& asha_capability,

                                  uint32_t& asha_truncated_hi_sync_id) {

  asha_capability = -1;

  if (inq_res.p_eir) {

    const RawAddress& bdaddr = inq_res.bd_addr;



    // iterate through advertisement service data

    const uint8_t* p_service_data = inq_res.p_eir;

    uint8_t service_data_len = 0;

    while ((p_service_data = AdvertiseDataParser::GetFieldByType(

                p_service_data + service_data_len,

                inq_res.eir_len - (p_service_data - inq_res.p_eir) -

                    service_data_len,

                BTM_BLE_AD_TYPE_SERVICE_DATA_TYPE, &service_data_len))) {

      if (service_data_len < 2) {

        continue;

      }

      uint16_t uuid;

      const uint8_t* p_uuid = p_service_data;

      STREAM_TO_UINT16(uuid, p_uuid);



      if (uuid == 0xfdf0 /* ASHA service*/) {

        LOG_INFO("ASHA found in %s", ADDRESS_TO_LOGGABLE_CSTR(bdaddr));



        // ASHA advertisement service data length should be at least 8

        if (service_data_len < 8) {

          LOG_WARN("ASHA device service_data_len too short");

        } else {

          // It is intended to save ASHA capability byte to int16_t

          asha_capability = p_service_data[3];

          LOG_INFO("asha_capability: %d", asha_capability);



          const uint8_t* p_truncated_hisyncid = &(p_service_data[4]);

          STREAM_TO_UINT32(asha_truncated_hi_sync_id, p_truncated_hisyncid);

        }

        break;

      }

    }

  }

}



/*******************************************************************************

 *

 * Function         check_eir_remote_name
@@ -1381,13 +1431,17 @@ static void btif_dm_search_devices_evt(tBTA_DM_SEARCH_EVT event, 
                                   &(p_search_data->inq_res.include_rsi));

        num_properties++;



        // a non-negative value contains ASHA capability information

        // because ASHA's capability is 1 byte, so int16_t is large enough

        // The default negative value means ASHA capability not found.

        // A non-negative value represents ASHA capability information is valid.

        // Because ASHA's capability is 1 byte, so int16_t is large enough.

        int16_t asha_capability = -1;



        // contains ASHA truncated HiSyncId if asha_capability is non-negative

        uint32_t asha_truncated_hi_sync_id = 0;



        get_asha_service_data(p_search_data->inq_res, asha_capability,

                              asha_truncated_hi_sync_id);



        BTIF_STORAGE_FILL_PROPERTY(&properties[num_properties],

                                   BT_PROPERTY_REMOTE_ASHA_CAPABILITY,

                                   sizeof(int16_t), &asha_capability);