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248 lines
8.8 KiB
248 lines
8.8 KiB
4 months ago
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/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <cstddef>
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#include <cstdint>
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#include <functional>
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#include <mutex>
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#include <unordered_map>
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#include <vector>
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#include "hci/hci_packets.h"
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#include "stack/btm/neighbor_inquiry.h"
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#include "stack/include/btm_api_types.h"
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#include "types/raw_address.h"
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#include "gd/common/callback.h"
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#include "gd/hci/le_advertising_manager.h"
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#include "gd/hci/le_scanning_manager.h"
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#include "gd/neighbor/inquiry.h"
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#include "gd/os/alarm.h"
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//
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// NOTE: limited and general constants for inquiry and discoverable are swapped
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//
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/* Discoverable modes */
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static constexpr int kDiscoverableModeOff = 0; // BTM_NON_DISCOVERABLE
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static constexpr int kLimitedDiscoverableMode = 1; // BTM_LIMITED_DISCOVERABLE
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static constexpr int kGeneralDiscoverableMode = 2; // BTM_GENERAL_DISCOVERABLE
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/* Inquiry modes */
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static constexpr uint8_t kInquiryModeOff = 0; // BTM_INQUIRY_NONE
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static constexpr uint8_t kGeneralInquiryMode = 1; // BTM_GENERAL_INQUIRY
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static constexpr uint8_t kLimitedInquiryMode = 2; // BTM_LIMITED_INQUIRY
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/* Connectable modes */
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static constexpr int kConnectibleModeOff = 0; // BTM_NON_CONNECTABLE
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static constexpr int kConnectibleModeOn = 1; // BTM_CONNECTABLE
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/* Inquiry and page scan modes */
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static constexpr int kStandardScanType = 0;
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static constexpr int kInterlacedScanType = 1;
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/* Inquiry result modes */
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static constexpr int kStandardInquiryResult = 0;
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static constexpr int kInquiryResultWithRssi = 1;
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static constexpr int kExtendedInquiryResult = 2;
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static constexpr uint8_t kPhyConnectionNone = 0x00;
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static constexpr uint8_t kPhyConnectionLe1M = 0x01;
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static constexpr uint8_t kPhyConnectionLe2M = 0x02;
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static constexpr uint8_t kPhyConnectionLeCoded = 0x03;
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using LegacyInquiryCompleteCallback =
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std::function<void(tBTM_STATUS status, uint8_t inquiry_mode)>;
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using DiscoverabilityState = struct {
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int mode;
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uint16_t interval;
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uint16_t window;
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};
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using ConnectabilityState = DiscoverabilityState;
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using HACK_ScoDisconnectCallback = std::function<void(uint16_t, uint8_t)>;
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using BtmStatus = tBTM_STATUS;
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namespace bluetooth {
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namespace shim {
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class Btm {
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public:
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// |handler| is used to run timer tasks and scan callbacks
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Btm(os::Handler* handler, neighbor::InquiryModule* inquiry);
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~Btm() = default;
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// Inquiry result callbacks
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void OnInquiryResult(bluetooth::hci::InquiryResultView view);
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void OnInquiryResultWithRssi(bluetooth::hci::InquiryResultWithRssiView view);
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void OnExtendedInquiryResult(bluetooth::hci::ExtendedInquiryResultView view);
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void OnInquiryComplete(bluetooth::hci::ErrorCode status);
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void SetStandardInquiryResultMode();
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void SetInquiryWithRssiResultMode();
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void SetExtendedInquiryResultMode();
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void SetInterlacedInquiryScan();
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void SetStandardInquiryScan();
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bool IsInterlacedScanSupported() const;
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bool StartInquiry(uint8_t mode, uint8_t duration, uint8_t max_responses,
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LegacyInquiryCompleteCallback inquiry_complete_callback);
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void CancelInquiry();
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bool IsInquiryActive() const;
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bool IsGeneralInquiryActive() const;
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bool IsLimitedInquiryActive() const;
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bool StartPeriodicInquiry(uint8_t mode, uint8_t duration,
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uint8_t max_responses, uint16_t max_delay,
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uint16_t min_delay,
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tBTM_INQ_RESULTS_CB* p_results_cb);
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void CancelPeriodicInquiry();
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bool IsGeneralPeriodicInquiryActive() const;
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bool IsLimitedPeriodicInquiryActive() const;
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// Discoverability API
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bool general_inquiry_active_{false};
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bool limited_inquiry_active_{false};
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bool general_periodic_inquiry_active_{false};
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bool limited_periodic_inquiry_active_{false};
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void SetClassicGeneralDiscoverability(uint16_t window, uint16_t interval);
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void SetClassicLimitedDiscoverability(uint16_t window, uint16_t interval);
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void SetClassicDiscoverabilityOff();
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DiscoverabilityState GetClassicDiscoverabilityState() const;
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void SetLeGeneralDiscoverability();
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void SetLeLimitedDiscoverability();
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void SetLeDiscoverabilityOff();
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DiscoverabilityState GetLeDiscoverabilityState() const;
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void SetClassicConnectibleOn();
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void SetClassicConnectibleOff();
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ConnectabilityState GetClassicConnectabilityState() const;
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void SetInterlacedPageScan();
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void SetStandardPageScan();
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void SetLeConnectibleOn();
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void SetLeConnectibleOff();
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ConnectabilityState GetLeConnectabilityState() const;
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bool UseLeLink(const RawAddress& raw_address) const;
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// Remote device name API
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BtmStatus ReadClassicRemoteDeviceName(const RawAddress& raw_address,
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tBTM_CMPL_CB* callback);
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BtmStatus ReadLeRemoteDeviceName(const RawAddress& raw_address,
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tBTM_CMPL_CB* callback);
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BtmStatus CancelAllReadRemoteDeviceName();
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// Le neighbor interaction API
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bluetooth::hci::AdvertiserId advertiser_id_{
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hci::LeAdvertisingManager::kInvalidId};
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void StartAdvertising();
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void StopAdvertising();
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void StartConnectability();
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void StopConnectability();
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void StartActiveScanning();
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void StopActiveScanning();
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void StartObserving();
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void StopObserving();
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size_t GetNumberOfAdvertisingInstances() const;
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void SetObservingTimer(uint64_t duration_ms,
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common::OnceCallback<void()> callback);
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void CancelObservingTimer();
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void SetScanningTimer(uint64_t duration_ms,
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common::OnceCallback<void()> callback);
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void CancelScanningTimer();
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tBTM_STATUS CreateBond(const RawAddress& bd_addr, tBLE_ADDR_TYPE addr_type,
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tBT_TRANSPORT transport, int device_type);
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bool CancelBond(const RawAddress& bd_addr);
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bool RemoveBond(const RawAddress& bd_addr);
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uint16_t GetAclHandle(const RawAddress& remote_bda, tBT_TRANSPORT transport);
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void Register_HACK_SetScoDisconnectCallback(
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HACK_ScoDisconnectCallback callback);
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static hci::AddressWithType GetAddressAndType(const RawAddress& bd_addr);
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private:
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os::Alarm scanning_timer_;
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os::Alarm observing_timer_;
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LegacyInquiryCompleteCallback legacy_inquiry_complete_callback_{};
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uint8_t active_inquiry_mode_ = 0;
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class ReadRemoteName {
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public:
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ReadRemoteName() = default;
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bool Start(RawAddress raw_address);
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void Stop();
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bool IsInProgress() const;
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std::string AddressString() const;
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private:
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std::mutex mutex_;
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bool in_progress_ = false;
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RawAddress raw_address_ = RawAddress::kEmpty;
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};
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ReadRemoteName le_read_remote_name_;
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ReadRemoteName classic_read_remote_name_;
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class ScanningCallbacks : public hci::ScanningCallback {
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void OnScannerRegistered(const bluetooth::hci::Uuid app_uuid,
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bluetooth::hci::ScannerId scanner_id,
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ScanningStatus status);
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void OnScanResult(uint16_t event_type, uint8_t address_type,
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bluetooth::hci::Address address, uint8_t primary_phy,
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uint8_t secondary_phy, uint8_t advertising_sid,
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int8_t tx_power, int8_t rssi,
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uint16_t periodic_advertising_interval,
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std::vector<uint8_t> advertising_data);
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void OnTrackAdvFoundLost(bluetooth::hci::AdvertisingFilterOnFoundOnLostInfo
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on_found_on_lost_info);
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void OnBatchScanReports(int client_if, int status, int report_format,
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int num_records, std::vector<uint8_t> data);
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void OnBatchScanThresholdCrossed(int client_if);
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void OnTimeout();
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void OnFilterEnable(bluetooth::hci::Enable enable, uint8_t status);
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void OnFilterParamSetup(uint8_t available_spaces,
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bluetooth::hci::ApcfAction action, uint8_t status);
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void OnFilterConfigCallback(bluetooth::hci::ApcfFilterType filter_type,
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uint8_t available_spaces,
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bluetooth::hci::ApcfAction action,
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uint8_t status);
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};
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ScanningCallbacks scanning_callbacks_;
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// TODO(cmanton) abort if there is no classic acl link up
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bool CheckClassicAclLink(const RawAddress& raw_address) { return true; }
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bool CheckLeAclLink(const RawAddress& raw_address) { return true; }
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void StartScanning(bool use_active_scanning);
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};
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} // namespace shim
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} // namespace bluetooth
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