stack/btm/ble_scanner_hci_interface.h - platform/system/bt - Git at Google

 /*
  * Copyright 2019 HIMSA II K/S - www.himsa.com.
  * Represented by EHIMA - www.ehima.com
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #ifndef BLE_SCANNER_HCI_INTERFACE_H
 #define BLE_SCANNER_HCI_INTERFACE_H

 #include <base/callback.h>

 #include <vector>

 #include "stack/include/bt_types.h"

 class BleScannerHciInterface {
  public:
   using status_cb = base::Callback<void(uint8_t /* status */)>;
   using list_size_cb = base::Callback<void(int8_t /* list_size */)>;
   using handle_cb =
       base::Callback<void(uint8_t /* status */, uint16_t /* adv_handle */)>;

   static void Initialize();
   static BleScannerHciInterface* Get();
   static void CleanUp();

   virtual ~BleScannerHciInterface() = default;

   class ScanEventObserver {
    public:
     virtual ~ScanEventObserver() = default;
     virtual void OnPeriodicScanResult(uint16_t sync_handle, uint8_t tx_power,
                                       int8_t rssi, uint8_t cte_type,
                                       uint8_t pkt_data_status,
                                       uint8_t pkt_data_len,
                                       const uint8_t* pkt_data) = 0;
     virtual void OnPeriodicScanEstablished(
         uint8_t status, uint16_t sync_handle, uint8_t set_id,
         uint8_t adv_addr_type, const RawAddress& adv_addr, uint8_t adv_phy,
         uint16_t adv_interval, uint8_t adv_clock_accuracy) = 0;
     virtual void OnPeriodicScanLost(uint16_t sync_handle) = 0;
   };

   virtual void SetScanEventObserver(ScanEventObserver* observer) = 0;

   /**
    * Used to synchronize with a periodic advertising train from an advertiser
    * and begin receiving periodic advertising packets.
    *
    * @param options bit 0: whether to use advertiser list, adv_sid,
    * adv_addr_type and adv_addr parameters are being used otherwise, bit 1:
    * whether reporting is initially disabled, all other bits: Reserved for
    * future use
    * @param adv_sid advertising set ID
    * @param adv_addr_type advertiser device address type
    * @param adv_addr advertiser device address
    * @param skip_num the maximum number of periodic advertising events that can
    * be skipped after a successful receive. Range: 0x0000 to 0x01F3.
    * @param sync_timeout synchronization timeout for the periodic advertising
    * train, Range: 0x000A to 0x4000, Time = N*10 ms, Range: 100 ms to 163.84s
    * @param sync_cte_type bit 0: do not sync to packets with an AoA Constant
    * Tone Extension, bit 1: do not sync to packets with an AoD Constant Tone
    * Extension with 1 μs slots, bit 2: do not sync to packets with an AoD
    * Constant Tone Extension with 2 μs slots, bit 3: do not sync to packets with
    * a type 3 Constant Tone Extension (currently reserved for future use),
    * bit 4: do not sync to packets without a Constant Tone Extension, all other
    * bits: reserved for future use.
    */
   virtual void PeriodicScanStart(uint8_t options, uint8_t set_id,
                                  uint8_t adv_addr_type,
                                  const RawAddress& adv_addr, uint16_t skip_num,
                                  uint16_t sync_timeout,
                                  uint8_t sync_cte_type) = 0;

   /**
    * Used to cancel the HCI_LE_Periodic_Advertising_Create_Sync command while it
    * is pending.
    *
    * @param cb status callback
    */
   virtual void PeriodicScanCancelStart(status_cb cb) = 0;

   /**
    * Used to stop reception of the periodic advertising train identified by the
    * Sync_Handle parameter.
    *
    * @param sync_handle synced advertising handle
    * @param cb status callback
    */
   virtual void PeriodicScanTerminate(uint16_t sync_handle, status_cb cb) = 0;

   /**
    * Enable or disable reports for the periodic advertising train defined by the
    * sync_handle.
    *
    * @param sync_handle synced advewrtising handle
    * @param enable whether enable or disable the advertising reports
    * @param cb  status callback
    */
   virtual void PeriodicScanResultEvtEnable(uint16_t sync_handle, bool enable,
                                            status_cb cb) = 0;

   /**
    * Used to add an entry, consisting of a single device address and SID, to the
    * Periodic Advertiser list stored in the Controller. Any additions to the
    * Periodic Advertiser list take effect immediately. If the entry is already
    * on the list, the Controller shall return the error code Invalid HCI Command
    * Parameters (0x12).
    *
    * @param adv_addr_type advertiser device address type
    * @param adv_addr advertiser device address
    * @param adv_sid advertising set ID
    * @param cb status callback
    */
   virtual void PeriodicAdvertiserListAddDevice(uint8_t adv_addr_type,
                                                RawAddress& adv_addr,
                                                uint8_t adv_sid,
                                                status_cb cb) = 0;
   /**
    * Remove one entry from the list of Periodic Advertisers stored in the
    * Controller. Removals from the Periodic Advertisers List take effect
    * immediately.
    *
    * @param adv_addr_type advertiser device address type
    * @param adv_addr advertiser device address
    * @param adv_sid advertising set ID
    * @param cb status callback
    */
   virtual void PeriodicAdvertiserListRemoveDevice(uint8_t adv_addr_type,
                                                   RawAddress& adv_addr,
                                                   uint8_t adv_sid,
                                                   status_cb cb) = 0;

   /**
    * Remove all entries from the list of Periodic Advertisers in the Controller.
    *
    * @param cb status callback
    */
   virtual void PeriodicAdvertiserListClear(status_cb cb) = 0;

   /**
    * Read the total number of Periodic Advertiser list entries that can be
    * stored in the Controller.
    *
    * @param cb status and advertiser list size callback
    */
   virtual void PeriodicAdvertiserListGetSize(list_size_cb cb) = 0;

   /**
    * Send synchronization information about the periodic advertising train
    * identified by the sync_handle parameter to a connected device.
    *
    * @param bd_addr connected peer device address to whom sync data is
    * transferred
    * @param service_data a value provided by the Host
    * @param sync_handle synced advewrtising handle
    * @param cb status and connection handle callback
    */
   virtual void PeriodicAdvSyncTransfer(const RawAddress& bd_addr,
                                        uint16_t service_data,
                                        uint16_t sync_handle, handle_cb cb) = 0;

   /**
    * Send synchronization information about the periodic advertising in an
    * advertising set to a connected device.
    *
    * @param bd_addr connected peer device address to whom set info is
    * transferred
    * @param service_data a value provided by the Host
    * @param sync_handle synced advertising handle
    * @param cb status and connection handle callback
    */
   virtual void PeriodicAdvSetInfoTransfer(const RawAddress& bd_addr,
                                           uint16_t service_data,
                                           uint8_t sync_handle,
                                           handle_cb cb) = 0;

   /**
    * Specify how the Controller will process periodic advertising
    * synchronization information received from the device identified by the
    * bd_addr
    *
    * @param bd_addr connected peer device address who transfers the sync data
    * @param mode 0x00: No attempt is made to synchronize to the periodic
    * advertising and no HCI_LE_Periodic_Advertising_Sync_Transfer_Received event
    * is sent to the Host. 0x01: An
    * HCI_LE_Periodic_Advertising_Sync_Transfer_Received event is sent to the
    * Host. HCI_LE_Periodic_Advertising_Report events will be disabled. 0x02: An
    * HCI_LE_Periodic_Advertising_Sync_Transfer_Received event is sent to the
    * Host. HCI_LE_Periodic_Advertising_Report events will be enabled. All other
    * values: Reserved for future use.
    * @param skip The number of periodic advertising packets that can be skipped
    * after a successful receive, Range: 0x0000 to 0x01F3
    * @param sync_timeout Synchronization timeout for the periodic advertising
    * train. Range: 0x000A to 0x4000. Time = N*10 ms. Time Range: 100 ms to
    * 163.84 s
    * @param cte_type bit 0: do not sync to packets with an AoA Constant Tone
    * Extension, bit 1: do not sync to packets with an AoD Constant Tone
    * Extension with 1 μs slots, bit 2: do not sync to packets with an AoD
    * Constant Tone Extension with 2 μs slots, bit 4: do not sync to packets
    * without a Constant Tone Extension, all other values: reserved for future
    * use.
    * @param set_defaults whether to send
    * HCI_LE_SET_DEFAULT_PERIODIC_ADVERTISING_SYNC_TRANSFER_PARAM or
    * HCI_LE_SET_PERIODIC_ADVERTISING_SYNC_TRANSFER_PARAM.
    * @param cb status callback
    */
   virtual void SetPeriodicAdvSyncTransferParams(const RawAddress& bd_addr,
                                                 uint8_t mode, uint16_t skip,
                                                 uint16_t sync_timeout,
                                                 uint8_t cte_type,
                                                 bool set_defaults,
                                                 status_cb cb) = 0;

   static constexpr uint8_t kOptUseAdvertiserList = 0x01;
   static constexpr uint8_t kOptReportsInitiallyEnabled = 0x02;
 };

 #endif  // BLE_SCANNER_HCI_INTERFACE_H
	/*
	* Copyright 2019 HIMSA II K/S - www.himsa.com.
	* Represented by EHIMA - www.ehima.com
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#ifndef BLE_SCANNER_HCI_INTERFACE_H
	#define BLE_SCANNER_HCI_INTERFACE_H

	#include <base/callback.h>

	#include <vector>

	#include "stack/include/bt_types.h"

	class BleScannerHciInterface {
	public:
	using status_cb = base::Callback<void(uint8_t /* status */)>;
	using list_size_cb = base::Callback<void(int8_t /* list_size */)>;
	using handle_cb =
	base::Callback<void(uint8_t /* status /, uint16_t / adv_handle */)>;

	static void Initialize();
	static BleScannerHciInterface* Get();
	static void CleanUp();

	virtual ~BleScannerHciInterface() = default;

	class ScanEventObserver {
	public:
	virtual ~ScanEventObserver() = default;
	virtual void OnPeriodicScanResult(uint16_t sync_handle, uint8_t tx_power,
	int8_t rssi, uint8_t cte_type,
	uint8_t pkt_data_status,
	uint8_t pkt_data_len,
	const uint8_t* pkt_data) = 0;
	virtual void OnPeriodicScanEstablished(
	uint8_t status, uint16_t sync_handle, uint8_t set_id,
	uint8_t adv_addr_type, const RawAddress& adv_addr, uint8_t adv_phy,
	uint16_t adv_interval, uint8_t adv_clock_accuracy) = 0;
	virtual void OnPeriodicScanLost(uint16_t sync_handle) = 0;
	};

	virtual void SetScanEventObserver(ScanEventObserver* observer) = 0;

	/**
	* Used to synchronize with a periodic advertising train from an advertiser
	* and begin receiving periodic advertising packets.
	*
	* @param options bit 0: whether to use advertiser list, adv_sid,
	* adv_addr_type and adv_addr parameters are being used otherwise, bit 1:
	* whether reporting is initially disabled, all other bits: Reserved for
	* future use
	* @param adv_sid advertising set ID
	* @param adv_addr_type advertiser device address type
	* @param adv_addr advertiser device address
	* @param skip_num the maximum number of periodic advertising events that can
	* be skipped after a successful receive. Range: 0x0000 to 0x01F3.
	* @param sync_timeout synchronization timeout for the periodic advertising
	* train, Range: 0x000A to 0x4000, Time = N*10 ms, Range: 100 ms to 163.84s
	* @param sync_cte_type bit 0: do not sync to packets with an AoA Constant
	* Tone Extension, bit 1: do not sync to packets with an AoD Constant Tone
	* Extension with 1 μs slots, bit 2: do not sync to packets with an AoD
	* Constant Tone Extension with 2 μs slots, bit 3: do not sync to packets with
	* a type 3 Constant Tone Extension (currently reserved for future use),
	* bit 4: do not sync to packets without a Constant Tone Extension, all other
	* bits: reserved for future use.
	*/
	virtual void PeriodicScanStart(uint8_t options, uint8_t set_id,
	uint8_t adv_addr_type,
	const RawAddress& adv_addr, uint16_t skip_num,
	uint16_t sync_timeout,
	uint8_t sync_cte_type) = 0;

	/**
	* Used to cancel the HCI_LE_Periodic_Advertising_Create_Sync command while it
	* is pending.
	*
	* @param cb status callback
	*/
	virtual void PeriodicScanCancelStart(status_cb cb) = 0;

	/**
	* Used to stop reception of the periodic advertising train identified by the
	* Sync_Handle parameter.
	*
	* @param sync_handle synced advertising handle
	* @param cb status callback
	*/
	virtual void PeriodicScanTerminate(uint16_t sync_handle, status_cb cb) = 0;

	/**
	* Enable or disable reports for the periodic advertising train defined by the
	* sync_handle.
	*
	* @param sync_handle synced advewrtising handle
	* @param enable whether enable or disable the advertising reports
	* @param cb status callback
	*/
	virtual void PeriodicScanResultEvtEnable(uint16_t sync_handle, bool enable,
	status_cb cb) = 0;

	/**
	* Used to add an entry, consisting of a single device address and SID, to the
	* Periodic Advertiser list stored in the Controller. Any additions to the
	* Periodic Advertiser list take effect immediately. If the entry is already
	* on the list, the Controller shall return the error code Invalid HCI Command
	* Parameters (0x12).
	*
	* @param adv_addr_type advertiser device address type
	* @param adv_addr advertiser device address
	* @param adv_sid advertising set ID
	* @param cb status callback
	*/
	virtual void PeriodicAdvertiserListAddDevice(uint8_t adv_addr_type,
	RawAddress& adv_addr,
	uint8_t adv_sid,
	status_cb cb) = 0;
	/**
	* Remove one entry from the list of Periodic Advertisers stored in the
	* Controller. Removals from the Periodic Advertisers List take effect
	* immediately.
	*
	* @param adv_addr_type advertiser device address type
	* @param adv_addr advertiser device address
	* @param adv_sid advertising set ID
	* @param cb status callback
	*/
	virtual void PeriodicAdvertiserListRemoveDevice(uint8_t adv_addr_type,
	RawAddress& adv_addr,
	uint8_t adv_sid,
	status_cb cb) = 0;

	/**
	* Remove all entries from the list of Periodic Advertisers in the Controller.
	*
	* @param cb status callback
	*/
	virtual void PeriodicAdvertiserListClear(status_cb cb) = 0;

	/**
	* Read the total number of Periodic Advertiser list entries that can be
	* stored in the Controller.
	*
	* @param cb status and advertiser list size callback
	*/
	virtual void PeriodicAdvertiserListGetSize(list_size_cb cb) = 0;

	/**
	* Send synchronization information about the periodic advertising train
	* identified by the sync_handle parameter to a connected device.
	*
	* @param bd_addr connected peer device address to whom sync data is
	* transferred
	* @param service_data a value provided by the Host
	* @param sync_handle synced advewrtising handle
	* @param cb status and connection handle callback
	*/
	virtual void PeriodicAdvSyncTransfer(const RawAddress& bd_addr,
	uint16_t service_data,
	uint16_t sync_handle, handle_cb cb) = 0;

	/**
	* Send synchronization information about the periodic advertising in an
	* advertising set to a connected device.
	*
	* @param bd_addr connected peer device address to whom set info is
	* transferred
	* @param service_data a value provided by the Host
	* @param sync_handle synced advertising handle
	* @param cb status and connection handle callback
	*/
	virtual void PeriodicAdvSetInfoTransfer(const RawAddress& bd_addr,
	uint16_t service_data,
	uint8_t sync_handle,
	handle_cb cb) = 0;

	/**
	* Specify how the Controller will process periodic advertising
	* synchronization information received from the device identified by the
	* bd_addr
	*
	* @param bd_addr connected peer device address who transfers the sync data
	* @param mode 0x00: No attempt is made to synchronize to the periodic
	* advertising and no HCI_LE_Periodic_Advertising_Sync_Transfer_Received event
	* is sent to the Host. 0x01: An
	* HCI_LE_Periodic_Advertising_Sync_Transfer_Received event is sent to the
	* Host. HCI_LE_Periodic_Advertising_Report events will be disabled. 0x02: An
	* HCI_LE_Periodic_Advertising_Sync_Transfer_Received event is sent to the
	* Host. HCI_LE_Periodic_Advertising_Report events will be enabled. All other
	* values: Reserved for future use.
	* @param skip The number of periodic advertising packets that can be skipped
	* after a successful receive, Range: 0x0000 to 0x01F3
	* @param sync_timeout Synchronization timeout for the periodic advertising
	* train. Range: 0x000A to 0x4000. Time = N*10 ms. Time Range: 100 ms to
	* 163.84 s
	* @param cte_type bit 0: do not sync to packets with an AoA Constant Tone
	* Extension, bit 1: do not sync to packets with an AoD Constant Tone
	* Extension with 1 μs slots, bit 2: do not sync to packets with an AoD
	* Constant Tone Extension with 2 μs slots, bit 4: do not sync to packets
	* without a Constant Tone Extension, all other values: reserved for future
	* use.
	* @param set_defaults whether to send
	* HCI_LE_SET_DEFAULT_PERIODIC_ADVERTISING_SYNC_TRANSFER_PARAM or
	* HCI_LE_SET_PERIODIC_ADVERTISING_SYNC_TRANSFER_PARAM.
	* @param cb status callback
	*/
	virtual void SetPeriodicAdvSyncTransferParams(const RawAddress& bd_addr,
	uint8_t mode, uint16_t skip,
	uint16_t sync_timeout,
	uint8_t cte_type,
	bool set_defaults,
	status_cb cb) = 0;

	static constexpr uint8_t kOptUseAdvertiserList = 0x01;
	static constexpr uint8_t kOptReportsInitiallyEnabled = 0x02;
	};

	#endif // BLE_SCANNER_HCI_INTERFACE_H