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Commit 1c26106b authored by Chienyuan Huang's avatar Chienyuan Huang
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RAS: Compose data for On-demand Ranging Data 

Bug: 329043482
Bug: 324185011
Test: m com.android.btservices
Change-Id: I5a4b61a196851edd5a8ff641259ed82abea070a9
parent 40420f47

system/gd/hci/distance_measurement_manager.cc

+106 −7
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ 
#include "os/log.h"

#include "os/repeating_alarm.h"

#include "packet/packet_view.h"

#include "ras/ras_packets.h"



using namespace bluetooth::ras;



namespace bluetooth {

namespace hci {
@@ -64,7 +67,11 @@ static constexpr uint8_t kReportWithNoAbort = 0x00; 


struct DistanceMeasurementManager::impl {

  struct CsProcedureData {

    CsProcedureData(uint16_t procedure_counter, uint8_t num_antenna_paths)

    CsProcedureData(

        uint16_t procedure_counter,

        uint8_t num_antenna_paths,

        uint8_t configuration_id,

        uint8_t selected_tx_power)

        : counter(procedure_counter), num_antenna_paths(num_antenna_paths) {

      local_status = CsProcedureDoneStatus::PARTIAL_RESULTS;

      remote_status = CsProcedureDoneStatus::PARTIAL_RESULTS;
@@ -78,6 +85,14 @@ struct DistanceMeasurementManager::impl { 
        tone_quality_indicator_initiator.push_back(empty_vector);

        tone_quality_indicator_reflector.push_back(empty_vector);

      }

      segmentation_header_.first_segment_ = 1;

      segmentation_header_.last_segment_ = 0;

      segmentation_header_.rolling_segment_counter_ = 0;

      ranging_header_.ranging_counter_ = counter;

      ranging_header_.configuration_id_ = configuration_id;

      ranging_header_.selected_tx_power_ = selected_tx_power;

      ranging_header_.antenna_paths_mask_ = 0x01;

      ranging_header_.pct_format_ = PctFormat::IQ;

    }

    // Procedure counter

    uint16_t counter;
@@ -102,6 +117,13 @@ struct DistanceMeasurementManager::impl { 
    CsProcedureDoneStatus remote_status;

    // If the procedure is aborted by either the local or remote side.

    bool aborted = false;

    // RAS data

    SegmentationHeader segmentation_header_;

    RangingHeader ranging_header_;

    std::vector<uint8_t> ras_subevents;  // raw data for multi_subevents;

    RasSubeventHeader ras_subevent_header_;

    std::vector<uint8_t> ras_subevent_data_;

    uint8_t ras_subevent_counter_ = 0;

  };



  ~impl() {}
@@ -565,8 +587,13 @@ struct DistanceMeasurementManager::impl { 


    if (event_view.GetState() == Enable::ENABLED) {

      log::debug("Procedure enabled, {}", event_view.ToString());

      if (cs_trackers_.find(connection_handle) != cs_trackers_.end() &&

          cs_trackers_[connection_handle].waiting_for_start_callback) {

      if (cs_trackers_.find(connection_handle) == cs_trackers_.end()) {

        return;

      }

      cs_trackers_[connection_handle].config_id = event_view.GetConfigId();

      cs_trackers_[connection_handle].selected_tx_power = event_view.GetSelectedTxPower();



      if (cs_trackers_[connection_handle].waiting_for_start_callback) {

        cs_trackers_[connection_handle].waiting_for_start_callback = false;

        distance_measurement_callbacks_->OnDistanceMeasurementStarted(

            cs_trackers_[connection_handle].address, METHOD_CS);
@@ -608,6 +635,22 @@ struct DistanceMeasurementManager::impl { 
        procedure_data->frequency_compensation.push_back(

            cs_event_result.GetFrequencyCompensation());

      }

      uint16_t antenna_paths_mask = 0;

      for (uint8_t i = 0; i < procedure_data->num_antenna_paths; i++) {

        antenna_paths_mask |= (1 << i);

      }

      // RAS

      procedure_data->ranging_header_.antenna_paths_mask_ = antenna_paths_mask;

      log::debug("RAS Update subevent_header counter:{}", procedure_data->ras_subevent_counter_++);

      auto& ras_subevent_header = procedure_data->ras_subevent_header_;

      ras_subevent_header.start_acl_conn_event_ = cs_event_result.GetStartAclConnEvent();

      ras_subevent_header.frequency_compensation_ = cs_event_result.GetFrequencyCompensation();

      ras_subevent_header.ranging_done_status_ =

          static_cast<RangingDoneStatus>(cs_event_result.GetProcedureDoneStatus());

      ras_subevent_header.subevent_done_status_ =

          static_cast<SubeventDoneStatus>(cs_event_result.GetSubeventDoneStatus());

      ras_subevent_header.reference_power_level_ = cs_event_result.GetReferencePowerLevel();

      ras_subevent_header.num_steps_reported_ = 0;

    } else {

      auto cs_event_result = LeCsSubeventResultContinueView::Create(event);

      if (!cs_event_result.IsValid()) {
@@ -642,18 +685,48 @@ struct DistanceMeasurementManager::impl { 
    if (procedure_data == nullptr) {

      return;

    }

    procedure_data->ras_subevent_header_.num_steps_reported_ += result_data_structures.size();



    if (abort_reason != kReportWithNoAbort) {

      // Even the procedure is aborted, we should keep following process and

      // handle it when all corresponding remote data received.

      procedure_data->aborted = true;

    } else {

    }

    parse_cs_result_data(

        result_data_structures, *procedure_data, cs_trackers_[connection_handle].role);

    }

    // Update procedure status

    procedure_data->local_status = procedure_done_status;

    check_cs_procedure_complete(procedure_data, connection_handle);



    // Send data to RAS server

    if (subevent_done_status != CsSubeventDoneStatus::PARTIAL_RESULTS) {

      auto builder = RasSubeventBuilder::Create(

          procedure_data->ras_subevent_header_, procedure_data->ras_subevent_data_);

      auto subevent_raw = builder_to_bytes(std::move(builder));

      append_vector(procedure_data->ras_subevents, subevent_raw);

      // erase buffer

      procedure_data->ras_subevent_data_.clear();

      send_on_demand_data(procedure_data);

    }

  }



  void send_on_demand_data(CsProcedureData* procedure_data) {

    if (procedure_data->local_status != CsProcedureDoneStatus::PARTIAL_RESULTS) {

      procedure_data->segmentation_header_.last_segment_ = 1;

    }

    auto builder = OnDemandRangingDataBuilder::Create(

        procedure_data->segmentation_header_,

        procedure_data->counter,

        procedure_data->ranging_header_,

        procedure_data->ras_subevents);

    auto raw_data = builder_to_bytes(std::move(builder));

    log::debug("counter: {}, size:{}", procedure_data->counter, (uint16_t)raw_data.size());

    // TODO, push data to RAS server



    procedure_data->ras_subevents.clear();

    procedure_data->segmentation_header_.first_segment_ = 0;

    procedure_data->segmentation_header_.rolling_segment_counter_++;

    procedure_data->segmentation_header_.rolling_segment_counter_ %= 64;

  }



  void init_cs_procedure_data(
@@ -680,7 +753,11 @@ struct DistanceMeasurementManager::impl { 
      }

    }

    log::info("Create data for procedure_counter: {}", procedure_counter);

    data_list.emplace_back(procedure_counter, num_antenna_paths);

    data_list.emplace_back(

        procedure_counter,

        num_antenna_paths,

        cs_trackers_[connection_handle].config_id,

        cs_trackers_[connection_handle].selected_tx_power);



    if (data_list.size() > kProcedureDataBufferSize) {

      log::warn("buffer full, drop procedure data with counter: {}", data_list.front().counter);
@@ -732,14 +809,22 @@ struct DistanceMeasurementManager::impl { 
      CsProcedureData& procedure_data,

      CsRole role) {

    uint8_t num_antenna_paths = procedure_data.num_antenna_paths;

    auto& ras_data = procedure_data.ras_subevent_data_;

    for (auto result_data_structure : result_data_structures) {

      uint16_t mode = result_data_structure.step_mode_;

      uint16_t step_channel = result_data_structure.step_channel_;

      uint16_t data_length = result_data_structure.step_data_.size();

      log::verbose(

          "mode: {}, channel: {}, data_length: {}",

          mode,

          step_channel,

          (uint16_t)result_data_structure.step_data_.size());

      ras_data.emplace_back(mode);

      if (data_length == 0) {

        ras_data.back() |= (1 << 7);  // set step aborted

        continue;

      }

      append_vector(ras_data, result_data_structure.step_data_);



      // Parse data into structs from an iterator

      auto bytes = std::make_shared<std::vector<uint8_t>>();
@@ -980,6 +1065,18 @@ struct DistanceMeasurementManager::impl { 
        DistanceMeasurementMethod::METHOD_RSSI);

  }



  std::vector<uint8_t> builder_to_bytes(std::unique_ptr<PacketBuilder<true>> builder) {

    std::shared_ptr<std::vector<uint8_t>> bytes = std::make_shared<std::vector<uint8_t>>();

    BitInserter bi(*bytes);

    builder->Serialize(bi);

    return *bytes;

  }



  void append_vector(std::vector<uint8_t>& v1, std::vector<uint8_t>& v2) {

    v1.reserve(v2.size());

    v1.insert(v1.end(), v2.begin(), v2.end());

  }



  struct RSSITracker {

    uint16_t handle;

    uint16_t interval_ms;
@@ -999,6 +1096,8 @@ struct DistanceMeasurementManager::impl { 
    CsSubModeType sub_mode_type;

    CsRttType rtt_type;

    bool remote_support_phase_based_ranging = false;

    uint8_t config_id = 0;

    uint8_t selected_tx_power = 0;

    std::vector<CsProcedureData> procedure_data_list;

    uint16_t interval_ms;

    bool waiting_for_start_callback = false;