address PR comments and add some typing

Add advertiser classes and handle adv set terminated events

bumble/device.py

@@ -437,6 +437,38 @@ class AdvertisingType(IntEnum):
         )
 
 
+# -----------------------------------------------------------------------------
+@dataclass
+class LegacyAdvertiser:
+    device: Device
+    advertising_type: AdvertisingType
+    own_address_type: OwnAddressType
+    auto_restart: bool
+    advertising_data: Optional[bytes]
+    scan_response_data: Optional[bytes]
+
+    async def stop(self) -> None:
+        await self.device.stop_legacy_advertising()
+
+
+# -----------------------------------------------------------------------------
+@dataclass
+class ExtendedAdvertiser(CompositeEventEmitter):
+    device: Device
+    handle: int
+    advertising_properties: HCI_LE_Set_Extended_Advertising_Parameters_Command.AdvertisingProperties
+    own_address_type: OwnAddressType
+    auto_restart: bool
+    advertising_data: Optional[bytes]
+    scan_response_data: Optional[bytes]
+
+    def __post_init__(self) -> None:
+        super().__init__()
+
+    async def stop(self) -> None:
+        await self.device.stop_extended_advertising(self.handle)
+
+
 # -----------------------------------------------------------------------------
 class LePhyOptions:
     # Coded PHY preference
@@ -658,6 +690,9 @@ class Connection(CompositeEventEmitter):
     gatt_client: gatt_client.Client
     pairing_peer_io_capability: Optional[int]
     pairing_peer_authentication_requirements: Optional[int]
+    advertiser_after_disconnection: Union[
+        LegacyAdvertiser, ExtendedAdvertiser, None
+    ] = None
 
     @composite_listener
     class Listener:
@@ -1063,7 +1098,8 @@ class Device(CompositeEventEmitter):
     ]
     advertisement_accumulators: Dict[Address, AdvertisementDataAccumulator]
     config: DeviceConfiguration
-    extended_advertising_handles: Set[int]
+    legacy_advertiser: Optional[LegacyAdvertiser]
+    extended_advertisers: Dict[int, ExtendedAdvertiser]
     sco_links: Dict[int, ScoLink]
     cis_links: Dict[int, CisLink]
     _pending_cis: Dict[int, Tuple[int, int]]
@@ -1141,10 +1177,7 @@ class Device(CompositeEventEmitter):
 
         self._host = None
         self.powered_on = False
-        self.advertising = False
-        self.advertising_type = None
         self.auto_restart_inquiry = True
-        self.auto_restart_advertising = False
         self.command_timeout = 10  # seconds
         self.gatt_server = gatt_server.Server(self)
         self.sdp_server = sdp.Server(self)
@@ -1168,10 +1201,10 @@ class Device(CompositeEventEmitter):
         self.classic_pending_accepts = {
             Address.ANY: []
         }  # Futures, by BD address OR [Futures] for Address.ANY
-        self.extended_advertising_handles = set()
+        self.legacy_advertiser = None
+        self.extended_advertisers = {}
 
         # Own address type cache
-        self.advertising_own_address_type = None
         self.connect_own_address_type = None
 
         # Use the initial config or a default
@@ -1432,7 +1465,7 @@ class Device(CompositeEventEmitter):
         await self.host.reset()
 
         # Try to get the public address from the controller
-        response = await self.send_command(HCI_Read_BD_ADDR_Command())  # type: ignore[call-arg]
+        response = await self.send_command(HCI_Read_BD_ADDR_Command())
         if response.return_parameters.status == HCI_SUCCESS:
             logger.debug(
                 color(f'BD_ADDR: {response.return_parameters.bd_addr}', 'yellow')
@@ -1455,7 +1488,7 @@ class Device(CompositeEventEmitter):
                 HCI_Write_LE_Host_Support_Command(
                     le_supported_host=int(self.le_enabled),
                     simultaneous_le_host=int(self.le_simultaneous_enabled),
-                )  # type: ignore[call-arg]
+                )
             )
 
         if self.le_enabled:
@@ -1465,7 +1498,7 @@ class Device(CompositeEventEmitter):
                 if self.host.supports_command(HCI_LE_RAND_COMMAND):
                     # Get 8 random bytes
                     response = await self.send_command(
-                        HCI_LE_Rand_Command(), check_result=True  # type: ignore[call-arg]
+                        HCI_LE_Rand_Command(), check_result=True
                     )
 
                     # Ensure the address bytes can be a static random address
@@ -1486,7 +1519,7 @@ class Device(CompositeEventEmitter):
                 await self.send_command(
                     HCI_LE_Set_Random_Address_Command(
                         random_address=self.random_address
-                    ),  # type: ignore[call-arg]
+                    ),
                     check_result=True,
                 )
 
@@ -1499,12 +1532,12 @@ class Device(CompositeEventEmitter):
                 await self.send_command(
                     HCI_LE_Set_Address_Resolution_Enable_Command(
                         address_resolution_enable=1
-                    )  # type: ignore[call-arg]
+                    )
                 )
 
             if self.cis_enabled:
                 await self.send_command(
-                    HCI_LE_Set_Host_Feature_Command(  # type: ignore[call-arg]
+                    HCI_LE_Set_Host_Feature_Command(
                         bit_number=(
                             HCI_CONNECTED_ISOCHRONOUS_STREAM_LE_SUPPORTED_FEATURE
                         ),
@@ -1514,20 +1547,20 @@ class Device(CompositeEventEmitter):
 
         if self.classic_enabled:
             await self.send_command(
-                HCI_Write_Local_Name_Command(local_name=self.name.encode('utf8'))  # type: ignore[call-arg]
+                HCI_Write_Local_Name_Command(local_name=self.name.encode('utf8'))
             )
             await self.send_command(
-                HCI_Write_Class_Of_Device_Command(class_of_device=self.class_of_device)  # type: ignore[call-arg]
+                HCI_Write_Class_Of_Device_Command(class_of_device=self.class_of_device)
             )
             await self.send_command(
                 HCI_Write_Simple_Pairing_Mode_Command(
                     simple_pairing_mode=int(self.classic_ssp_enabled)
-                )  # type: ignore[call-arg]
+                )
             )
             await self.send_command(
                 HCI_Write_Secure_Connections_Host_Support_Command(
                     secure_connections_host_support=int(self.classic_sc_enabled)
-                )  # type: ignore[call-arg]
+                )
             )
             await self.set_connectable(self.connectable)
             await self.set_discoverable(self.discoverable)
@@ -1551,7 +1584,7 @@ class Device(CompositeEventEmitter):
         self.address_resolver = smp.AddressResolver(resolving_keys)
 
         if self.address_resolution_offload:
-            await self.send_command(HCI_LE_Clear_Resolving_List_Command())  # type: ignore[call-arg]
+            await self.send_command(HCI_LE_Clear_Resolving_List_Command())
 
             for irk, address in resolving_keys:
                 await self.send_command(
@@ -1560,7 +1593,7 @@ class Device(CompositeEventEmitter):
                         peer_identity_address=address,
                         peer_irk=irk,
                         local_irk=self.irk,
-                    )  # type: ignore[call-arg]
+                    )
                 )
 
     def supports_le_feature(self, feature):
@@ -1579,6 +1612,7 @@ class Device(CompositeEventEmitter):
 
         return self.host.supports_le_feature(feature_map[phy])
 
+    @deprecated("Please use start_legacy_advertising.")
     async def start_advertising(
         self,
         advertising_type: AdvertisingType = AdvertisingType.UNDIRECTED_CONNECTABLE_SCANNABLE,
@@ -1586,16 +1620,50 @@ class Device(CompositeEventEmitter):
         own_address_type: int = OwnAddressType.RANDOM,
         auto_restart: bool = False,
     ) -> None:
+        await self.start_legacy_advertising(
+            advertising_type=advertising_type,
+            target=target,
+            own_address_type=OwnAddressType(own_address_type),
+            auto_restart=auto_restart,
+        )
+
+    async def start_legacy_advertising(
+        self,
+        advertising_type: AdvertisingType = AdvertisingType.UNDIRECTED_CONNECTABLE_SCANNABLE,
+        target: Optional[Address] = None,
+        own_address_type: OwnAddressType = OwnAddressType.RANDOM,
+        auto_restart: bool = False,
+        advertising_data: Optional[bytes] = None,
+        scan_response_data: Optional[bytes] = None,
+    ) -> LegacyAdvertiser:
+        """Starts an legacy advertisement.
+
+        Args:
+          advertising_type: Advertising type passed to HCI_LE_Set_Advertising_Parameters_Command.
+          target: Directed advertising target. Directed type should be set in advertising_type arg.
+          own_address_type: own address type to use in the advertising.
+          auto_restart: whether the advertisement will be restarted after disconnection.
+          scan_response_data: raw scan response.
+          advertising_data: raw advertising data.
+
+        Returns:
+          LegacyAdvertiser object containing the metadata of advertisement.
+        """
+        if self.extended_advertisers:
+            logger.warning(
+                'Trying to start Legacy and Extended Advertising at the same time!'
+            )
+
         # If we're advertising, stop first
-        if self.advertising:
+        if self.legacy_advertiser:
             await self.stop_advertising()
 
         # Set/update the advertising data if the advertising type allows it
         if advertising_type.has_data:
             await self.send_command(
                 HCI_LE_Set_Advertising_Data_Command(
-                    advertising_data=self.advertising_data
+                    advertising_data=advertising_data or self.advertising_data or b''
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
 
@@ -1603,8 +1671,10 @@ class Device(CompositeEventEmitter):
         if advertising_type.is_scannable:
             await self.send_command(
                 HCI_LE_Set_Scan_Response_Data_Command(
-                    scan_response_data=self.scan_response_data
+                    scan_response_data=scan_response_data
-                ),  # type: ignore[call-arg]
+                    or self.scan_response_data
+                    or b''
+                ),
                 check_result=True,
             )
 
@@ -1630,55 +1700,67 @@ class Device(CompositeEventEmitter):
                 peer_address=peer_address,
                 advertising_channel_map=7,
                 advertising_filter_policy=0,
-            ),  # type: ignore[call-arg]
+            ),
             check_result=True,
         )
 
         # Enable advertising
         await self.send_command(
-            HCI_LE_Set_Advertising_Enable_Command(advertising_enable=1),  # type: ignore[call-arg]
+            HCI_LE_Set_Advertising_Enable_Command(advertising_enable=1),
             check_result=True,
         )
 
-        self.advertising_type = advertising_type
+        self.legacy_advertiser = LegacyAdvertiser(
-        self.advertising_own_address_type = own_address_type
+            device=self,
-        self.advertising = True
+            advertising_type=advertising_type,
-        self.auto_restart_advertising = auto_restart
+            own_address_type=own_address_type,
+            auto_restart=auto_restart,
+            advertising_data=advertising_data,
+            scan_response_data=scan_response_data,
+        )
+        return self.legacy_advertiser
 
+    @deprecated("Please use stop_legacy_advertising.")
     async def stop_advertising(self) -> None:
+        await self.stop_legacy_advertising()
+
+    async def stop_legacy_advertising(self) -> None:
         # Disable advertising
-        if self.advertising:
+        if self.legacy_advertiser:
             await self.send_command(
-                HCI_LE_Set_Advertising_Enable_Command(advertising_enable=0),  # type: ignore[call-arg]
+                HCI_LE_Set_Advertising_Enable_Command(advertising_enable=0),
                 check_result=True,
             )
 
-            self.advertising_type = None
+            self.legacy_advertiser = None
-            self.advertising_own_address_type = None
-            self.advertising = False
-            self.auto_restart_advertising = False
 
     @experimental('Extended Advertising is still experimental - Might be changed soon.')
     async def start_extended_advertising(
         self,
         advertising_properties: HCI_LE_Set_Extended_Advertising_Parameters_Command.AdvertisingProperties = HCI_LE_Set_Extended_Advertising_Parameters_Command.AdvertisingProperties.CONNECTABLE_ADVERTISING,
         target: Address = Address.ANY,
-        own_address_type: int = OwnAddressType.RANDOM,
+        own_address_type: OwnAddressType = OwnAddressType.RANDOM,
-        scan_response: Optional[bytes] = None,
+        auto_restart: bool = True,
         advertising_data: Optional[bytes] = None,
-    ) -> int:
+        scan_response_data: Optional[bytes] = None,
+    ) -> ExtendedAdvertiser:
         """Starts an extended advertising set.
 
         Args:
           advertising_properties: Properties to pass in HCI_LE_Set_Extended_Advertising_Parameters_Command
           target: Directed advertising target. Directed property should be set in advertising_properties arg.
           own_address_type: own address type to use in the advertising.
-          scan_response: raw scan response. When a non-none value is set, HCI_LE_Set_Extended_Scan_Response_Data_Command will be sent.
+          auto_restart: whether the advertisement will be restarted after disconnection.
           advertising_data: raw advertising data. When a non-none value is set, HCI_LE_Set_Advertising_Set_Random_Address_Command will be sent.
+          scan_response_data: raw scan response. When a non-none value is set, HCI_LE_Set_Extended_Scan_Response_Data_Command will be sent.
 
         Returns:
-          Handle of the new advertising set.
+          ExtendedAdvertiser object containing the metadata of advertisement.
         """
+        if self.legacy_advertiser:
+            logger.warning(
+                'Trying to start Legacy and Extended Advertising at the same time!'
+            )
 
         adv_handle = -1
         # Find a free handle
@@ -1686,7 +1768,7 @@ class Device(CompositeEventEmitter):
             DEVICE_MIN_EXTENDED_ADVERTISING_SET_HANDLE,
             DEVICE_MAX_EXTENDED_ADVERTISING_SET_HANDLE + 1,
         ):
-            if i not in self.extended_advertising_handles:
+            if i not in self.extended_advertisers:
                 adv_handle = i
                 break
 
@@ -1716,7 +1798,7 @@ class Device(CompositeEventEmitter):
                     secondary_advertising_phy=1,  # LE 1M
                     advertising_sid=0,
                     scan_request_notification_enable=0,
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
 
@@ -1728,19 +1810,19 @@ class Device(CompositeEventEmitter):
                         operation=HCI_LE_Set_Extended_Advertising_Data_Command.Operation.COMPLETE_DATA,
                         fragment_preference=0x01,  # Should not fragment
                         advertising_data=advertising_data,
-                    ),  # type: ignore[call-arg]
+                    ),
                     check_result=True,
                 )
 
             # Set the scan response if present
-            if scan_response is not None:
+            if scan_response_data is not None:
                 await self.send_command(
                     HCI_LE_Set_Extended_Scan_Response_Data_Command(
                         advertising_handle=adv_handle,
                         operation=HCI_LE_Set_Extended_Advertising_Data_Command.Operation.COMPLETE_DATA,
                         fragment_preference=0x01,  # Should not fragment
-                        scan_response_data=scan_response,
+                        scan_response_data=scan_response_data,
-                    ),  # type: ignore[call-arg]
+                    ),
                     check_result=True,
                 )
 
@@ -1752,7 +1834,7 @@ class Device(CompositeEventEmitter):
                     HCI_LE_Set_Advertising_Set_Random_Address_Command(
                         advertising_handle=adv_handle,
                         random_address=self.random_address,
-                    ),  # type: ignore[call-arg]
+                    ),
                     check_result=True,
                 )
 
@@ -1763,19 +1845,27 @@ class Device(CompositeEventEmitter):
                     advertising_handles=[adv_handle],
                     durations=[0],  # Forever
                     max_extended_advertising_events=[0],  # Infinite
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
         except HCI_Error as error:
             # When any step fails, cleanup the advertising handle.
             await self.send_command(
-                HCI_LE_Remove_Advertising_Set_Command(advertising_handle=adv_handle),  # type: ignore[call-arg]
+                HCI_LE_Remove_Advertising_Set_Command(advertising_handle=adv_handle),
                 check_result=False,
             )
             raise error
 
-        self.extended_advertising_handles.add(adv_handle)
+        advertiser = self.extended_advertisers[adv_handle] = ExtendedAdvertiser(
-        return adv_handle
+            device=self,
+            handle=adv_handle,
+            advertising_properties=advertising_properties,
+            own_address_type=own_address_type,
+            auto_restart=auto_restart,
+            advertising_data=advertising_data,
+            scan_response_data=scan_response_data,
+        )
+        return advertiser
 
     @experimental('Extended Advertising is still experimental - Might be changed soon.')
     async def stop_extended_advertising(self, adv_handle: int) -> None:
@@ -1791,19 +1881,19 @@ class Device(CompositeEventEmitter):
                 advertising_handles=[adv_handle],
                 durations=[0],
                 max_extended_advertising_events=[0],
-            ),  # type: ignore[call-arg]
+            ),
             check_result=True,
         )
         # Remove advertising set
         await self.send_command(
-            HCI_LE_Remove_Advertising_Set_Command(advertising_handle=adv_handle),  # type: ignore[call-arg]
+            HCI_LE_Remove_Advertising_Set_Command(advertising_handle=adv_handle),
             check_result=True,
         )
-        self.extended_advertising_handles.remove(adv_handle)
+        del self.extended_advertisers[adv_handle]
 
     @property
     def is_advertising(self):
-        return self.advertising
+        return self.legacy_advertiser or self.extended_advertisers
 
     async def start_scanning(
         self,
@@ -1864,7 +1954,7 @@ class Device(CompositeEventEmitter):
                     scan_types=[scan_type] * scanning_phy_count,
                     scan_intervals=[int(scan_window / 0.625)] * scanning_phy_count,
                     scan_windows=[int(scan_window / 0.625)] * scanning_phy_count,
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
 
@@ -1875,7 +1965,7 @@ class Device(CompositeEventEmitter):
                     filter_duplicates=1 if filter_duplicates else 0,
                     duration=0,  # TODO allow other values
                     period=0,  # TODO allow other values
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
         else:
@@ -1893,7 +1983,7 @@ class Device(CompositeEventEmitter):
                     le_scan_window=int(scan_window / 0.625),
                     own_address_type=own_address_type,
                     scanning_filter_policy=HCI_LE_Set_Scan_Parameters_Command.BASIC_UNFILTERED_POLICY,
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
 
@@ -1901,7 +1991,7 @@ class Device(CompositeEventEmitter):
             await self.send_command(
                 HCI_LE_Set_Scan_Enable_Command(
                     le_scan_enable=1, filter_duplicates=1 if filter_duplicates else 0
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
 
@@ -1914,12 +2004,12 @@ class Device(CompositeEventEmitter):
             await self.send_command(
                 HCI_LE_Set_Extended_Scan_Enable_Command(
                     enable=0, filter_duplicates=0, duration=0, period=0
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
         else:
             await self.send_command(
-                HCI_LE_Set_Scan_Enable_Command(le_scan_enable=0, filter_duplicates=0),  # type: ignore[call-arg]
+                HCI_LE_Set_Scan_Enable_Command(le_scan_enable=0, filter_duplicates=0),
                 check_result=True,
             )
 
@@ -1939,7 +2029,7 @@ class Device(CompositeEventEmitter):
 
     async def start_discovery(self, auto_restart: bool = True) -> None:
         await self.send_command(
-            HCI_Write_Inquiry_Mode_Command(inquiry_mode=HCI_EXTENDED_INQUIRY_MODE),  # type: ignore[call-arg]
+            HCI_Write_Inquiry_Mode_Command(inquiry_mode=HCI_EXTENDED_INQUIRY_MODE),
             check_result=True,
         )
 
@@ -1948,7 +2038,7 @@ class Device(CompositeEventEmitter):
                 lap=HCI_GENERAL_INQUIRY_LAP,
                 inquiry_length=DEVICE_DEFAULT_INQUIRY_LENGTH,
                 num_responses=0,  # Unlimited number of responses.
-            )  # type: ignore[call-arg]
+            )
         )
         if response.status != HCI_Command_Status_Event.PENDING:
             self.discovering = False
@@ -1959,7 +2049,7 @@ class Device(CompositeEventEmitter):
 
     async def stop_discovery(self) -> None:
         if self.discovering:
-            await self.send_command(HCI_Inquiry_Cancel_Command(), check_result=True)  # type: ignore[call-arg]
+            await self.send_command(HCI_Inquiry_Cancel_Command(), check_result=True)
         self.auto_restart_inquiry = True
         self.discovering = False
 
@@ -2007,7 +2097,7 @@ class Device(CompositeEventEmitter):
             await self.send_command(
                 HCI_Write_Extended_Inquiry_Response_Command(
                     fec_required=0, extended_inquiry_response=self.inquiry_response
-                ),  # type: ignore[call-arg]
+                ),
                 check_result=True,
             )
             await self.set_scan_enable(
@@ -2196,7 +2286,7 @@ class Device(CompositeEventEmitter):
                             supervision_timeouts=supervision_timeouts,
                             min_ce_lengths=min_ce_lengths,
                             max_ce_lengths=max_ce_lengths,
-                        )  # type: ignore[call-arg]
+                        )
                     )
                 else:
                     if HCI_LE_1M_PHY not in connection_parameters_preferences:
@@ -2225,7 +2315,7 @@ class Device(CompositeEventEmitter):
                             supervision_timeout=int(prefs.supervision_timeout / 10),
                             min_ce_length=int(prefs.min_ce_length / 0.625),
                             max_ce_length=int(prefs.max_ce_length / 0.625),
-                        )  # type: ignore[call-arg]
+                        )
                     )
             else:
                 # Save pending connection
@@ -2242,7 +2332,7 @@ class Device(CompositeEventEmitter):
                         clock_offset=0x0000,
                         allow_role_switch=0x01,
                         reserved=0,
-                    )  # type: ignore[call-arg]
+                    )
                 )
 
             if result.status != HCI_Command_Status_Event.PENDING:
@@ -2261,10 +2351,10 @@ class Device(CompositeEventEmitter):
                 )
             except asyncio.TimeoutError:
                 if transport == BT_LE_TRANSPORT:
-                    await self.send_command(HCI_LE_Create_Connection_Cancel_Command())  # type: ignore[call-arg]
+                    await self.send_command(HCI_LE_Create_Connection_Cancel_Command())
                 else:
                     await self.send_command(
-                        HCI_Create_Connection_Cancel_Command(bd_addr=peer_address)  # type: ignore[call-arg]
+                        HCI_Create_Connection_Cancel_Command(bd_addr=peer_address)
                     )
 
                 try:
@@ -2378,7 +2468,7 @@ class Device(CompositeEventEmitter):
         try:
             # Accept connection request
             await self.send_command(
-                HCI_Accept_Connection_Request_Command(bd_addr=peer_address, role=role)  # type: ignore[call-arg]
+                HCI_Accept_Connection_Request_Command(bd_addr=peer_address, role=role)
             )
 
             # Wait for connection complete
@@ -2445,7 +2535,7 @@ class Device(CompositeEventEmitter):
 
         # Request a disconnection
         result = await self.send_command(
-            HCI_Disconnect_Command(connection_handle=connection.handle, reason=reason)  # type: ignore[call-arg]
+            HCI_Disconnect_Command(connection_handle=connection.handle, reason=reason)
         )
 
         try:
@@ -2476,7 +2566,7 @@ class Device(CompositeEventEmitter):
                 connection_handle=connection.handle,
                 tx_octets=tx_octets,
                 tx_time=tx_time,
-            ),  # type: ignore[call-arg]
+            ),
             check_result=True,
         )
 
@@ -2522,7 +2612,7 @@ class Device(CompositeEventEmitter):
                 supervision_timeout=supervision_timeout,
                 min_ce_length=min_ce_length,
                 max_ce_length=max_ce_length,
-            )  # type: ignore[call-arg]
+            )
         )
         if result.status != HCI_Command_Status_Event.PENDING:
             raise HCI_StatusError(result)
@@ -2850,7 +2940,7 @@ class Device(CompositeEventEmitter):
 
         try:
             result = await self.send_command(
-                HCI_Switch_Role_Command(bd_addr=connection.peer_address, role=role)  # type: ignore[call-arg]
+                HCI_Switch_Role_Command(bd_addr=connection.peer_address, role=role)
             )
             if result.status != HCI_COMMAND_STATUS_PENDING:
                 logger.warning(
@@ -2892,7 +2982,7 @@ class Device(CompositeEventEmitter):
                     page_scan_repetition_mode=HCI_Remote_Name_Request_Command.R2,
                     reserved=0,
                     clock_offset=0,  # TODO investigate non-0 values
-                )  # type: ignore[call-arg]
+                )
             )
 
             if result.status != HCI_COMMAND_STATUS_PENDING:
@@ -2938,7 +3028,7 @@ class Device(CompositeEventEmitter):
         num_cis = len(cis_id)
 
         response = await self.send_command(
-            HCI_LE_Set_CIG_Parameters_Command(  # type: ignore[call-arg]
+            HCI_LE_Set_CIG_Parameters_Command(
                 cig_id=cig_id,
                 sdu_interval_c_to_p=sdu_interval[0],
                 sdu_interval_p_to_c=sdu_interval[1],
@@ -2982,7 +3072,7 @@ class Device(CompositeEventEmitter):
             )
 
         result = await self.send_command(
-            HCI_LE_Create_CIS_Command(  # type: ignore[call-arg]
+            HCI_LE_Create_CIS_Command(
                 cis_connection_handle=[p[0] for p in cis_acl_pairs],
                 acl_connection_handle=[p[1] for p in cis_acl_pairs],
             ),
@@ -3015,9 +3105,7 @@ class Device(CompositeEventEmitter):
     @experimental('Only for testing.')
     async def accept_cis_request(self, handle: int) -> CisLink:
         result = await self.send_command(
-            HCI_LE_Accept_CIS_Request_Command(  # type: ignore[call-arg]
+            HCI_LE_Accept_CIS_Request_Command(connection_handle=handle),
-                connection_handle=handle
-            ),
         )
         if result.status != HCI_COMMAND_STATUS_PENDING:
             logger.warning(
@@ -3045,9 +3133,7 @@ class Device(CompositeEventEmitter):
         reason: int = HCI_REMOTE_USER_TERMINATED_CONNECTION_ERROR,
     ) -> None:
         result = await self.send_command(
-            HCI_LE_Reject_CIS_Request_Command(  # type: ignore[call-arg]
+            HCI_LE_Reject_CIS_Request_Command(connection_handle=handle, reason=reason),
-                connection_handle=handle, reason=reason
-            ),
         )
         if result.status != HCI_COMMAND_STATUS_PENDING:
             logger.warning(
@@ -3148,13 +3234,18 @@ class Device(CompositeEventEmitter):
             # Guess which own address type is used for this connection.
             # This logic is somewhat correct but may need to be improved
             # when multiple advertising are run simultaneously.
+            advertiser = None
             if self.connect_own_address_type is not None:
                 own_address_type = self.connect_own_address_type
+            elif self.legacy_advertiser:
+                own_address_type = self.legacy_advertiser.own_address_type
+                # Store advertiser for restarting - it's only required for legacy, since
+                # extended advertisement produces HCI_Advertising_Set_Terminated.
+                if self.legacy_advertiser.auto_restart:
+                    advertiser = self.legacy_advertiser
             else:
-                own_address_type = self.advertising_own_address_type
+                # For extended advertisement, determining own address type later.
-
+                own_address_type = OwnAddressType.RANDOM
-            # We are no longer advertising
-            self.advertising = False
 
             if own_address_type in (
                 OwnAddressType.PUBLIC,
@@ -3176,6 +3267,7 @@ class Device(CompositeEventEmitter):
                 connection_parameters,
                 ConnectionPHY(HCI_LE_1M_PHY, HCI_LE_1M_PHY),
             )
+            connection.advertiser_after_disconnection = advertiser
             self.connections[connection_handle] = connection
 
             # If supported, read which PHY we're connected with before
@@ -3207,10 +3299,10 @@ class Device(CompositeEventEmitter):
         # For directed advertising, this means a timeout
         if (
             transport == BT_LE_TRANSPORT
-            and self.advertising
+            and self.legacy_advertiser
-            and self.advertising_type.is_directed
+            and self.legacy_advertiser.advertising_type.is_directed
         ):
-            self.advertising = False
+            self.legacy_advertiser = None
 
         # Notify listeners
         error = core.ConnectionError(
@@ -3272,16 +3364,30 @@ class Device(CompositeEventEmitter):
             self.gatt_server.on_disconnection(connection)
 
             # Restart advertising if auto-restart is enabled
-            if self.auto_restart_advertising:
+            if advertiser := connection.advertiser_after_disconnection:
                 logger.debug('restarting advertising')
-                self.abort_on(
+                if isinstance(advertiser, LegacyAdvertiser):
-                    'flush',
+                    self.abort_on(
-                    self.start_advertising(
+                        'flush',
-                        advertising_type=self.advertising_type,  # type: ignore[arg-type]
+                        self.start_legacy_advertising(
-                        own_address_type=self.advertising_own_address_type,  # type: ignore[arg-type]
+                            advertising_type=advertiser.advertising_type,
-                        auto_restart=True,
+                            own_address_type=advertiser.own_address_type,
-                    ),
+                            advertising_data=advertiser.advertising_data,
-                )
+                            scan_response_data=advertiser.scan_response_data,
+                            auto_restart=True,
+                        ),
+                    )
+                elif isinstance(advertiser, ExtendedAdvertiser):
+                    self.abort_on(
+                        'flush',
+                        self.start_extended_advertising(
+                            advertising_properties=advertiser.advertising_properties,
+                            own_address_type=advertiser.own_address_type,
+                            advertising_data=advertiser.advertising_data,
+                            scan_response_data=advertiser.scan_response_data,
+                            auto_restart=True,
+                        ),
+                    )
         elif sco_link := self.sco_links.pop(connection_handle, None):
             sco_link.emit('disconnection', reason)
         elif cis_link := self.cis_links.pop(connection_handle, None):
@@ -3439,7 +3545,7 @@ class Device(CompositeEventEmitter):
             try:
                 if await connection.abort_on('disconnection', method()):
                     await self.host.send_command(
-                        HCI_User_Confirmation_Request_Reply_Command(  # type: ignore[call-arg]
+                        HCI_User_Confirmation_Request_Reply_Command(
                             bd_addr=connection.peer_address
                         )
                     )
@@ -3448,7 +3554,7 @@ class Device(CompositeEventEmitter):
                 logger.warning(f'exception while confirming: {error}')
 
             await self.host.send_command(
-                HCI_User_Confirmation_Request_Negative_Reply_Command(  # type: ignore[call-arg]
+                HCI_User_Confirmation_Request_Negative_Reply_Command(
                     bd_addr=connection.peer_address
                 )
             )
@@ -3469,7 +3575,7 @@ class Device(CompositeEventEmitter):
                 )
                 if number is not None:
                     await self.host.send_command(
-                        HCI_User_Passkey_Request_Reply_Command(  # type: ignore[call-arg]
+                        HCI_User_Passkey_Request_Reply_Command(
                             bd_addr=connection.peer_address, numeric_value=number
                         )
                     )
@@ -3478,7 +3584,7 @@ class Device(CompositeEventEmitter):
                 logger.warning(f'exception while asking for pass-key: {error}')
 
             await self.host.send_command(
-                HCI_User_Passkey_Request_Negative_Reply_Command(  # type: ignore[call-arg]
+                HCI_User_Passkey_Request_Negative_Reply_Command(
                     bd_addr=connection.peer_address
                 )
             )
@@ -3604,6 +3710,30 @@ class Device(CompositeEventEmitter):
         if sco_link := self.sco_links.get(sco_handle, None):
             sco_link.emit('pdu', packet)
 
+    # [LE only]
+    @host_event_handler
+    @experimental('Only for testing')
+    def on_advertising_set_termination(
+        self,
+        status: int,
+        advertising_handle: int,
+        connection_handle: int,
+    ) -> None:
+        if status == HCI_SUCCESS:
+            connection = self.lookup_connection(connection_handle)
+        if advertiser := self.extended_advertisers.pop(advertising_handle, None):
+            if connection:
+                if advertiser.auto_restart:
+                    connection.advertiser_after_disconnection = advertiser
+                if advertiser.own_address_type in (
+                    OwnAddressType.PUBLIC,
+                    OwnAddressType.RESOLVABLE_OR_PUBLIC,
+                ):
+                    connection.self_address = self.public_address
+                else:
+                    connection.self_address = self.random_address
+            advertiser.emit('termination', status)
+
     # [LE only]
     @host_event_handler
     @with_connection_from_handle

bumble/drivers/__init__.py

@@ -19,12 +19,17 @@ like loading firmware after a cold start.
 # -----------------------------------------------------------------------------
 # Imports
 # -----------------------------------------------------------------------------
-import abc
+from __future__ import annotations
 import logging
 import pathlib
 import platform
-from . import rtk
+from typing import Dict, Iterable, Optional, Type, TYPE_CHECKING
 
+from . import rtk
+from .common import Driver
+
+if TYPE_CHECKING:
+    from bumble.host import Host
 
 # -----------------------------------------------------------------------------
 # Logging
@@ -32,40 +37,31 @@ from . import rtk
 logger = logging.getLogger(__name__)
 
 
-# -----------------------------------------------------------------------------
-# Classes
-# -----------------------------------------------------------------------------
-class Driver(abc.ABC):
-    """Base class for drivers."""
-
-    @staticmethod
-    async def for_host(_host):
-        """Return a driver instance for a host.
-
-        Args:
-            host: Host object for which a driver should be created.
-
-        Returns:
-            A Driver instance if a driver should be instantiated for this host, or
-            None if no driver instance of this class is needed.
-        """
-        return None
-
-    @abc.abstractmethod
-    async def init_controller(self):
-        """Initialize the controller."""
-
-
 # -----------------------------------------------------------------------------
 # Functions
 # -----------------------------------------------------------------------------
-async def get_driver_for_host(host):
+async def get_driver_for_host(host: Host) -> Optional[Driver]:
-    """Probe all known diver classes until one returns a valid instance for a host,
+    """Probe diver classes until one returns a valid instance for a host, or none is
-    or none is found.
+    found.
+    If a "driver" HCI metadata entry is present, only that driver class will be probed.
     """
-    if driver := await rtk.Driver.for_host(host):
+    driver_classes: Dict[str, Type[Driver]] = {"rtk": rtk.Driver}
-        logger.debug("Instantiated RTK driver")
+    probe_list: Iterable[str]
-        return driver
+    if driver_name := host.hci_metadata.get("driver"):
+        # Only probe a single driver
+        probe_list = [driver_name]
+    else:
+        # Probe all drivers
+        probe_list = driver_classes.keys()
+
+    for driver_name in probe_list:
+        if driver_class := driver_classes.get(driver_name):
+            logger.debug(f"Probing driver class: {driver_name}")
+            if driver := await driver_class.for_host(host):
+                logger.debug(f"Instantiated {driver_name} driver")
+                return driver
+        else:
+            logger.debug(f"Skipping unknown driver class: {driver_name}")
 
     return None
 

bumble/drivers/common.py

@@ -0,0 +1,45 @@
+# Copyright 2021-2023 Google LLC
+#
+# 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
+#
+#      https://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.
+"""
+Common types for drivers.
+"""
+
+# -----------------------------------------------------------------------------
+# Imports
+# -----------------------------------------------------------------------------
+import abc
+
+
+# -----------------------------------------------------------------------------
+# Classes
+# -----------------------------------------------------------------------------
+class Driver(abc.ABC):
+    """Base class for drivers."""
+
+    @staticmethod
+    async def for_host(_host):
+        """Return a driver instance for a host.
+
+        Args:
+            host: Host object for which a driver should be created.
+
+        Returns:
+            A Driver instance if a driver should be instantiated for this host, or
+            None if no driver instance of this class is needed.
+        """
+        return None
+
+    @abc.abstractmethod
+    async def init_controller(self):
+        """Initialize the controller."""

bumble/drivers/rtk.py

@@ -41,7 +41,7 @@ from bumble.hci import (
     HCI_Reset_Command,
     HCI_Read_Local_Version_Information_Command,
 )
-
+from bumble.drivers import common
 
 # -----------------------------------------------------------------------------
 # Logging
@@ -285,7 +285,7 @@ class Firmware:
             )
 
 
-class Driver:
+class Driver(common.Driver):
     @dataclass
     class DriverInfo:
         rom: int
@@ -470,8 +470,12 @@ class Driver:
             logger.debug("USB metadata not found")
             return False
 
-        vendor_id = host.hci_metadata.get("vendor_id", None)
+        if host.hci_metadata.get('driver') == 'rtk':
-        product_id = host.hci_metadata.get("product_id", None)
+            # Forced driver
+            return True
+
+        vendor_id = host.hci_metadata.get("vendor_id")
+        product_id = host.hci_metadata.get("product_id")
         if vendor_id is None or product_id is None:
             logger.debug("USB metadata not sufficient")
             return False
@@ -486,6 +490,9 @@ class Driver:
 
     @classmethod
     async def driver_info_for_host(cls, host):
+        await host.send_command(HCI_Reset_Command(), check_result=True)
+        host.ready = True  # Needed to let the host know the controller is ready.
+
         response = await host.send_command(
             HCI_Read_Local_Version_Information_Command(), check_result=True
         )

bumble/hci.py

@@ -561,6 +561,12 @@ HCI_LE_TRANSMITTER_TEST_V4_COMMAND                                       = hci_c
 HCI_LE_SET_DATA_RELATED_ADDRESS_CHANGES_COMMAND                          = hci_command_op_code(0x08, 0x007C)
 HCI_LE_SET_DEFAULT_SUBRATE_COMMAND                                       = hci_command_op_code(0x08, 0x007D)
 HCI_LE_SUBRATE_REQUEST_COMMAND                                           = hci_command_op_code(0x08, 0x007E)
+HCI_LE_SET_EXTENDED_ADVERTISING_PARAMETERS_V2_COMMAND                    = hci_command_op_code(0x08, 0x007F)
+HCI_LE_SET_PERIODIC_ADVERTISING_SUBEVENT_DATA_COMMAND                    = hci_command_op_code(0x08, 0x0082)
+HCI_LE_SET_PERIODIC_ADVERTISING_RESPONSE_DATA_COMMAND                    = hci_command_op_code(0x08, 0x0083)
+HCI_LE_SET_PERIODIC_SYNC_SUBEVENT_COMMAND                                = hci_command_op_code(0x08, 0x0084)
+HCI_LE_EXTENDED_CREATE_CONNECTION_V2_COMMAND                             = hci_command_op_code(0x08, 0x0085)
+HCI_LE_SET_PERIODIC_ADVERTISING_PARAMETERS_V2_COMMAND                    = hci_command_op_code(0x08, 0x0086)
 
 
 # HCI Error Codes
@@ -1317,56 +1323,72 @@ HCI_SUPPORTED_COMMANDS_FLAGS = (
     (
         HCI_LE_SET_DEFAULT_SUBRATE_COMMAND,
         HCI_LE_SUBRATE_REQUEST_COMMAND,
+        HCI_LE_SET_EXTENDED_ADVERTISING_PARAMETERS_V2_COMMAND,
+        None,
+        None,
+        HCI_LE_SET_PERIODIC_ADVERTISING_SUBEVENT_DATA_COMMAND,
+        HCI_LE_SET_PERIODIC_ADVERTISING_RESPONSE_DATA_COMMAND,
+        HCI_LE_SET_PERIODIC_SYNC_SUBEVENT_COMMAND
+    ),
+    # Octet 47
+    (
+        HCI_LE_EXTENDED_CREATE_CONNECTION_V2_COMMAND,
+        HCI_LE_SET_PERIODIC_ADVERTISING_PARAMETERS_V2_COMMAND,
+        None,
         None,
         None,
         None,
         None,
         None,
-        None
     )
 )
 
 # LE Supported Features
-HCI_LE_ENCRYPTION_LE_SUPPORTED_FEATURE                                = 0
+# See Bluetooth spec @ Vol 6, Part B, 4.6 FEATURE SUPPORT
-HCI_CONNECTION_PARAMETERS_REQUEST_PROCEDURE_LE_SUPPORTED_FEATURE      = 1
+HCI_LE_ENCRYPTION_LE_SUPPORTED_FEATURE                                  = 0
-HCI_EXTENDED_REJECT_INDICATION_LE_SUPPORTED_FEATURE                   = 2
+HCI_CONNECTION_PARAMETERS_REQUEST_PROCEDURE_LE_SUPPORTED_FEATURE        = 1
-HCI_PERIPHERAL_INITIATED_FEATURE_EXCHANGE_LE_SUPPORTED_FEATURE        = 3
+HCI_EXTENDED_REJECT_INDICATION_LE_SUPPORTED_FEATURE                     = 2
-HCI_LE_PING_LE_SUPPORTED_FEATURE                                      = 4
+HCI_PERIPHERAL_INITIATED_FEATURE_EXCHANGE_LE_SUPPORTED_FEATURE          = 3
-HCI_LE_DATA_PACKET_LENGTH_EXTENSION_LE_SUPPORTED_FEATURE              = 5
+HCI_LE_PING_LE_SUPPORTED_FEATURE                                        = 4
-HCI_LL_PRIVACY_LE_SUPPORTED_FEATURE                                   = 6
+HCI_LE_DATA_PACKET_LENGTH_EXTENSION_LE_SUPPORTED_FEATURE                = 5
-HCI_EXTENDED_SCANNER_FILTER_POLICIES_LE_SUPPORTED_FEATURE             = 7
+HCI_LL_PRIVACY_LE_SUPPORTED_FEATURE                                     = 6
-HCI_LE_2M_PHY_LE_SUPPORTED_FEATURE                                    = 8
+HCI_EXTENDED_SCANNER_FILTER_POLICIES_LE_SUPPORTED_FEATURE               = 7
-HCI_STABLE_MODULATION_INDEX_TRANSMITTER_LE_SUPPORTED_FEATURE          = 9
+HCI_LE_2M_PHY_LE_SUPPORTED_FEATURE                                      = 8
-HCI_STABLE_MODULATION_INDEX_RECEIVER_LE_SUPPORTED_FEATURE             = 10
+HCI_STABLE_MODULATION_INDEX_TRANSMITTER_LE_SUPPORTED_FEATURE            = 9
-HCI_LE_CODED_PHY_LE_SUPPORTED_FEATURE                                 = 11
+HCI_STABLE_MODULATION_INDEX_RECEIVER_LE_SUPPORTED_FEATURE               = 10
-HCI_LE_EXTENDED_ADVERTISING_LE_SUPPORTED_FEATURE                      = 12
+HCI_LE_CODED_PHY_LE_SUPPORTED_FEATURE                                   = 11
-HCI_LE_PERIODIC_ADVERTISING_LE_SUPPORTED_FEATURE                      = 13
+HCI_LE_EXTENDED_ADVERTISING_LE_SUPPORTED_FEATURE                        = 12
-HCI_CHANNEL_SELECTION_ALGORITHM_2_LE_SUPPORTED_FEATURE                = 14
+HCI_LE_PERIODIC_ADVERTISING_LE_SUPPORTED_FEATURE                        = 13
-HCI_LE_POWER_CLASS_1_LE_SUPPORTED_FEATURE                             = 15
+HCI_CHANNEL_SELECTION_ALGORITHM_2_LE_SUPPORTED_FEATURE                  = 14
-HCI_MINIMUM_NUMBER_OF_USED_CHANNELS_PROCEDURE_LE_SUPPORTED_FEATURE    = 16
+HCI_LE_POWER_CLASS_1_LE_SUPPORTED_FEATURE                               = 15
-HCI_CONNECTION_CTE_REQUEST_LE_SUPPORTED_FEATURE                       = 17
+HCI_MINIMUM_NUMBER_OF_USED_CHANNELS_PROCEDURE_LE_SUPPORTED_FEATURE      = 16
-HCI_CONNECTION_CTE_RESPONSE_LE_SUPPORTED_FEATURE                      = 18
+HCI_CONNECTION_CTE_REQUEST_LE_SUPPORTED_FEATURE                         = 17
-HCI_CONNECTIONLESS_CTE_TRANSMITTER_LE_SUPPORTED_FEATURE               = 19
+HCI_CONNECTION_CTE_RESPONSE_LE_SUPPORTED_FEATURE                        = 18
-HCI_CONNECTIONLESS_CTR_RECEIVER_LE_SUPPORTED_FEATURE                  = 20
+HCI_CONNECTIONLESS_CTE_TRANSMITTER_LE_SUPPORTED_FEATURE                 = 19
-HCI_ANTENNA_SWITCHING_DURING_CTE_TRANSMISSION_LE_SUPPORTED_FEATURE    = 21
+HCI_CONNECTIONLESS_CTR_RECEIVER_LE_SUPPORTED_FEATURE                    = 20
-HCI_ANTENNA_SWITCHING_DURING_CTE_RECEPTION_LE_SUPPORTED_FEATURE       = 22
+HCI_ANTENNA_SWITCHING_DURING_CTE_TRANSMISSION_LE_SUPPORTED_FEATURE      = 21
-HCI_RECEIVING_CONSTANT_TONE_EXTENSIONS_LE_SUPPORTED_FEATURE           = 23
+HCI_ANTENNA_SWITCHING_DURING_CTE_RECEPTION_LE_SUPPORTED_FEATURE         = 22
-HCI_PERIODIC_ADVERTISING_SYNC_TRANSFER_SENDER_LE_SUPPORTED_FEATURE    = 24
+HCI_RECEIVING_CONSTANT_TONE_EXTENSIONS_LE_SUPPORTED_FEATURE             = 23
-HCI_PERIODIC_ADVERTISING_SYNC_TRANSFER_RECIPIENT_LE_SUPPORTED_FEATURE = 25
+HCI_PERIODIC_ADVERTISING_SYNC_TRANSFER_SENDER_LE_SUPPORTED_FEATURE      = 24
-HCI_SLEEP_CLOCK_ACCURACY_UPDATES_LE_SUPPORTED_FEATURE                 = 26
+HCI_PERIODIC_ADVERTISING_SYNC_TRANSFER_RECIPIENT_LE_SUPPORTED_FEATURE   = 25
-HCI_REMOTE_PUBLIC_KEY_VALIDATION_LE_SUPPORTED_FEATURE                 = 27
+HCI_SLEEP_CLOCK_ACCURACY_UPDATES_LE_SUPPORTED_FEATURE                   = 26
-HCI_CONNECTED_ISOCHRONOUS_STREAM_CENTRAL_LE_SUPPORTED_FEATURE         = 28
+HCI_REMOTE_PUBLIC_KEY_VALIDATION_LE_SUPPORTED_FEATURE                   = 27
-HCI_CONNECTED_ISOCHRONOUS_STREAM_PERIPHERAL_LE_SUPPORTED_FEATURE      = 29
+HCI_CONNECTED_ISOCHRONOUS_STREAM_CENTRAL_LE_SUPPORTED_FEATURE           = 28
-HCI_ISOCHRONOUS_BROADCASTER_LE_SUPPORTED_FEATURE                      = 30
+HCI_CONNECTED_ISOCHRONOUS_STREAM_PERIPHERAL_LE_SUPPORTED_FEATURE        = 29
-HCI_SYNCHRONIZED_RECEIVER_LE_SUPPORTED_FEATURE                        = 31
+HCI_ISOCHRONOUS_BROADCASTER_LE_SUPPORTED_FEATURE                        = 30
-HCI_CONNECTED_ISOCHRONOUS_STREAM_LE_SUPPORTED_FEATURE                 = 32
+HCI_SYNCHRONIZED_RECEIVER_LE_SUPPORTED_FEATURE                          = 31
-HCI_LE_POWER_CONTROL_REQUEST_LE_SUPPORTED_FEATURE                     = 33
+HCI_CONNECTED_ISOCHRONOUS_STREAM_LE_SUPPORTED_FEATURE                   = 32
-HCI_LE_POWER_CONTROL_REQUEST_DUP_LE_SUPPORTED_FEATURE                 = 34
+HCI_LE_POWER_CONTROL_REQUEST_LE_SUPPORTED_FEATURE                       = 33
-HCI_LE_PATH_LOSS_MONITORING_LE_SUPPORTED_FEATURE                      = 35
+HCI_LE_POWER_CONTROL_REQUEST_DUP_LE_SUPPORTED_FEATURE                   = 34
-HCI_PERIODIC_ADVERTISING_ADI_SUPPORT_LE_SUPPORTED_FEATURE             = 36
+HCI_LE_PATH_LOSS_MONITORING_LE_SUPPORTED_FEATURE                        = 35
-HCI_CONNECTION_SUBRATING_LE_SUPPORTED_FEATURE                         = 37
+HCI_PERIODIC_ADVERTISING_ADI_SUPPORT_LE_SUPPORTED_FEATURE               = 36
-HCI_CONNECTION_SUBRATING_HOST_SUPPORT_LE_SUPPORTED_FEATURE            = 38
+HCI_CONNECTION_SUBRATING_LE_SUPPORTED_FEATURE                           = 37
-HCI_CHANNEL_CLASSIFICATION_LE_SUPPORTED_FEATURE                       = 39
+HCI_CONNECTION_SUBRATING_HOST_SUPPORT_LE_SUPPORTED_FEATURE              = 38
+HCI_CHANNEL_CLASSIFICATION_LE_SUPPORTED_FEATURE                         = 39
+HCI_ADVERTISING_CODING_SELECTION_LE_SUPPORTED_FEATURE                   = 40
+HCI_ADVERTISING_CODING_SELECTION_HOST_SUPPORT_LE_SUPPORTED_FEATURE      = 41
+HCI_PERIODIC_ADVERTISING_WITH_RESPONSES_ADVERTISER_LE_SUPPORTED_FEATURE = 43
+HCI_PERIODIC_ADVERTISING_WITH_RESPONSES_SCANNER_LE_SUPPORTED_FEATURE    = 44
 
 HCI_LE_SUPPORTED_FEATURES_NAMES = {
     flag: feature_name for (feature_name, flag) in globals().items()
@@ -1629,7 +1651,7 @@ class HCI_Object:
                 field_bytes = bytes(field_value)
         elif field_type == 'v':
             # Variable-length bytes field, with 1-byte length at the beginning
-            field_bytes = bytes(field_bytes)
+            field_bytes = bytes(field_value)
             field_length = len(field_bytes)
             field_bytes = bytes([field_length]) + field_bytes
         elif isinstance(field_value, (bytes, bytearray)) or hasattr(
@@ -1941,25 +1963,15 @@ Address.ANY_RANDOM = Address(b"\x00\x00\x00\x00\x00\x00", Address.RANDOM_DEVICE_
 
 
 # -----------------------------------------------------------------------------
-class OwnAddressType:
+class OwnAddressType(enum.IntEnum):
     PUBLIC = 0
     RANDOM = 1
     RESOLVABLE_OR_PUBLIC = 2
     RESOLVABLE_OR_RANDOM = 3
 
-    TYPE_NAMES = {
+    @classmethod
-        PUBLIC: 'PUBLIC',
+    def type_spec(cls):
-        RANDOM: 'RANDOM',
+        return {'size': 1, 'mapper': lambda x: OwnAddressType(x).name}
-        RESOLVABLE_OR_PUBLIC: 'RESOLVABLE_OR_PUBLIC',
-        RESOLVABLE_OR_RANDOM: 'RESOLVABLE_OR_RANDOM',
-    }
-
-    @staticmethod
-    def type_name(type_id):
-        return name_or_number(OwnAddressType.TYPE_NAMES, type_id)
-
-    # pylint: disable-next=unnecessary-lambda
-    TYPE_SPEC = {'size': 1, 'mapper': lambda x: OwnAddressType.type_name(x)}
 
 
 # -----------------------------------------------------------------------------
@@ -1986,6 +1998,9 @@ class HCI_Packet:
         if packet_type == HCI_EVENT_PACKET:
             return HCI_Event.from_bytes(packet)
 
+        if packet_type == HCI_ISO_DATA_PACKET:
+            return HCI_IsoDataPacket.from_bytes(packet)
+
         return HCI_CustomPacket(packet)
 
     def __init__(self, name):
@@ -2018,6 +2033,7 @@ class HCI_Command(HCI_Packet):
     hci_packet_type = HCI_COMMAND_PACKET
     command_names: Dict[int, str] = {}
     command_classes: Dict[int, Type[HCI_Command]] = {}
+    op_code: int
 
     @staticmethod
     def command(fields=(), return_parameters_fields=()):
@@ -2103,7 +2119,11 @@ class HCI_Command(HCI_Packet):
         return_parameters.fields = cls.return_parameters_fields
         return return_parameters
 
-    def __init__(self, op_code, parameters=None, **kwargs):
+    def __init__(self, op_code=-1, parameters=None, **kwargs):
+        # Since the legacy implementation relies on an __init__ injector, typing always
+        # complains that positional argument op_code is not passed, so here sets a
+        # default value to allow building derived HCI_Command without op_code.
+        assert op_code != -1
         super().__init__(HCI_Command.command_name(op_code))
         if (fields := getattr(self, 'fields', None)) and kwargs:
             HCI_Object.init_from_fields(self, fields, kwargs)
@@ -3344,7 +3364,7 @@ class HCI_LE_Set_Random_Address_Command(HCI_Command):
                 ),
             },
         ),
-        ('own_address_type', OwnAddressType.TYPE_SPEC),
+        ('own_address_type', OwnAddressType.type_spec()),
         ('peer_address_type', Address.ADDRESS_TYPE_SPEC),
         ('peer_address', Address.parse_address_preceded_by_type),
         ('advertising_channel_map', 1),
@@ -3437,7 +3457,7 @@ class HCI_LE_Set_Advertising_Enable_Command(HCI_Command):
         ('le_scan_type', 1),
         ('le_scan_interval', 2),
         ('le_scan_window', 2),
-        ('own_address_type', OwnAddressType.TYPE_SPEC),
+        ('own_address_type', OwnAddressType.type_spec()),
         ('scanning_filter_policy', 1),
     ]
 )
@@ -3476,7 +3496,7 @@ class HCI_LE_Set_Scan_Enable_Command(HCI_Command):
         ('initiator_filter_policy', 1),
         ('peer_address_type', Address.ADDRESS_TYPE_SPEC),
         ('peer_address', Address.parse_address_preceded_by_type),
-        ('own_address_type', OwnAddressType.TYPE_SPEC),
+        ('own_address_type', OwnAddressType.type_spec()),
         ('connection_interval_min', 2),
         ('connection_interval_max', 2),
         ('max_latency', 2),
@@ -3883,7 +3903,7 @@ class HCI_LE_Set_Advertising_Set_Random_Address_Command(HCI_Command):
                 ),
             },
         ),
-        ('own_address_type', OwnAddressType.TYPE_SPEC),
+        ('own_address_type', OwnAddressType.type_spec()),
         ('peer_address_type', Address.ADDRESS_TYPE_SPEC),
         ('peer_address', Address.parse_address_preceded_by_type),
         ('advertising_filter_policy', 1),
@@ -4279,7 +4299,7 @@ class HCI_LE_Extended_Create_Connection_Command(HCI_Command):
             ('initiator_filter_policy:', self.initiator_filter_policy),
             (
                 'own_address_type:       ',
-                OwnAddressType.type_name(self.own_address_type),
+                OwnAddressType(self.own_address_type).name,
             ),
             (
                 'peer_address_type:      ',
@@ -5160,6 +5180,21 @@ HCI_LE_Meta_Event.subevent_classes[
 ] = HCI_LE_Extended_Advertising_Report_Event
 
 
+# -----------------------------------------------------------------------------
+@HCI_LE_Meta_Event.event(
+    [
+        ('status', 1),
+        ('advertising_handle', 1),
+        ('connection_handle', 2),
+        ('number_completed_extended_advertising_events', 1),
+    ]
+)
+class HCI_LE_Advertising_Set_Terminated_Event(HCI_LE_Meta_Event):
+    '''
+    See Bluetooth spec @ 7.7.65.18 LE Advertising Set Terminated Event
+    '''
+
+
 # -----------------------------------------------------------------------------
 @HCI_LE_Meta_Event.event([('connection_handle', 2), ('channel_selection_algorithm', 1)])
 class HCI_LE_Channel_Selection_Algorithm_Event(HCI_LE_Meta_Event):
@@ -6093,7 +6128,7 @@ class HCI_IsoDataPacket(HCI_Packet):
         if ts_flag:
             if not should_include_sdu_info:
                 logger.warn(f'Timestamp included when pb_flag={bin(pb_flag)}')
-            time_stamp, _ = struct.unpack_from('<I', packet, pos)
+            time_stamp, *_ = struct.unpack_from('<I', packet, pos)
             pos += 4
 
         if should_include_sdu_info:
@@ -6160,7 +6195,7 @@ class HCI_IsoDataPacket(HCI_Packet):
                 self.packet_sequence_number,
                 self.iso_sdu_length | self.packet_status_flag << 14,
             ]
-        return struct.pack(fmt, args) + self.iso_sdu_fragment
+        return struct.pack(fmt, *args) + self.iso_sdu_fragment
 
     def __str__(self) -> str:
         return (

bumble/host.py

@@ -21,7 +21,7 @@ import collections
 import logging
 import struct
 
-from typing import Optional, TYPE_CHECKING, Dict, Callable, Awaitable, cast
+from typing import Any, Awaitable, Callable, Dict, Optional, Union, cast, TYPE_CHECKING
 
 from bumble.colors import color
 from bumble.l2cap import L2CAP_PDU
@@ -124,7 +124,8 @@ class Connection:
 class Host(AbortableEventEmitter):
     connections: Dict[int, Connection]
     acl_packet_queue: collections.deque[HCI_AclDataPacket]
-    hci_sink: TransportSink
+    hci_sink: Optional[TransportSink] = None
+    hci_metadata: Dict[str, Any]
     long_term_key_provider: Optional[
         Callable[[int, bytes, int], Awaitable[Optional[bytes]]]
     ]
@@ -137,9 +138,8 @@ class Host(AbortableEventEmitter):
     ) -> None:
         super().__init__()
 
-        self.hci_metadata = None
+        self.hci_metadata = {}
         self.ready = False  # True when we can accept incoming packets
-        self.reset_done = False
         self.connections = {}  # Connections, by connection handle
         self.pending_command = None
         self.pending_response = None
@@ -162,10 +162,7 @@ class Host(AbortableEventEmitter):
 
         # Connect to the source and sink if specified
         if controller_source:
-            controller_source.set_packet_sink(self)
+            self.set_packet_source(controller_source)
-            self.hci_metadata = getattr(
-                controller_source, 'metadata', self.hci_metadata
-            )
         if controller_sink:
             self.set_packet_sink(controller_sink)
 
@@ -200,17 +197,21 @@ class Host(AbortableEventEmitter):
             self.ready = False
             await self.flush()
 
-        await self.send_command(HCI_Reset_Command(), check_result=True)
-        self.ready = True
-
         # Instantiate and init a driver for the host if needed.
         # NOTE: we don't keep a reference to the driver here, because we don't
         # currently have a need for the driver later on. But if the driver interface
         # evolves, it may be required, then, to store a reference to the driver in
         # an object property.
+        reset_needed = True
         if driver_factory is not None:
             if driver := await driver_factory(self):
                 await driver.init_controller()
+                reset_needed = False
+
+        # Send a reset command unless a driver has already done so.
+        if reset_needed:
+            await self.send_command(HCI_Reset_Command(), check_result=True)
+            self.ready = True
 
         response = await self.send_command(
             HCI_Read_Local_Supported_Commands_Command(), check_result=True
@@ -313,25 +314,28 @@ class Host(AbortableEventEmitter):
                     )
                 )
 
-        self.reset_done = True
-
     @property
-    def controller(self) -> TransportSink:
+    def controller(self) -> Optional[TransportSink]:
         return self.hci_sink
 
     @controller.setter
-    def controller(self, controller):
+    def controller(self, controller) -> None:
         self.set_packet_sink(controller)
         if controller:
             controller.set_packet_sink(self)
 
-    def set_packet_sink(self, sink: TransportSink) -> None:
+    def set_packet_sink(self, sink: Optional[TransportSink]) -> None:
         self.hci_sink = sink
 
+    def set_packet_source(self, source: TransportSource) -> None:
+        source.set_packet_sink(self)
+        self.hci_metadata = getattr(source, 'metadata', self.hci_metadata)
+
     def send_hci_packet(self, packet: HCI_Packet) -> None:
         if self.snooper:
             self.snooper.snoop(bytes(packet), Snooper.Direction.HOST_TO_CONTROLLER)
-        self.hci_sink.on_packet(bytes(packet))
+        if self.hci_sink:
+            self.hci_sink.on_packet(bytes(packet))
 
     async def send_command(self, command, check_result=False):
         logger.debug(f'{color("### HOST -> CONTROLLER", "blue")}: {command}')
@@ -721,6 +725,14 @@ class Host(AbortableEventEmitter):
     def on_hci_le_extended_advertising_report_event(self, event):
         self.on_hci_le_advertising_report_event(event)
 
+    def on_hci_le_advertising_set_terminated_event(self, event):
+        self.emit(
+            'advertising_set_termination',
+            event.status,
+            event.advertising_handle,
+            event.connection_handle,
+        )
+
     def on_hci_le_cis_request_event(self, event):
         self.emit(
             'cis_request',

bumble/l2cap.py

@@ -1926,7 +1926,7 @@ class ChannelManager:
                     supervision_timeout=request.timeout,
                     min_ce_length=0,
                     max_ce_length=0,
-                )  # type: ignore[call-arg]
+                )
             )
         else:
             self.send_control_frame(

bumble/profiles/bap.py

@@ -0,0 +1,496 @@
+# Copyright 2021-2023 Google LLC
+#
+# 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
+#
+#      https://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.
+
+
+# -----------------------------------------------------------------------------
+# Imports
+# -----------------------------------------------------------------------------
+from __future__ import annotations
+
+from collections.abc import Sequence
+import dataclasses
+import enum
+import struct
+import functools
+from typing import Optional, List, Union
+
+from bumble import hci
+from bumble import gatt
+from bumble import gatt_client
+
+
+# -----------------------------------------------------------------------------
+# Constants
+# -----------------------------------------------------------------------------
+
+
+class AudioLocation(enum.IntFlag):
+    '''Bluetooth Assigned Numbers, Section 6.12.1 - Audio Location'''
+
+    # fmt: off
+    NOT_ALLOWED             = 0x00000000
+    FRONT_LEFT              = 0x00000001
+    FRONT_RIGHT             = 0x00000002
+    FRONT_CENTER            = 0x00000004
+    LOW_FREQUENCY_EFFECTS_1 = 0x00000008
+    BACK_LEFT               = 0x00000010
+    BACK_RIGHT              = 0x00000020
+    FRONT_LEFT_OF_CENTER    = 0x00000040
+    FRONT_RIGHT_OF_CENTER   = 0x00000080
+    BACK_CENTER             = 0x00000100
+    LOW_FREQUENCY_EFFECTS_2 = 0x00000200
+    SIDE_LEFT               = 0x00000400
+    SIDE_RIGHT              = 0x00000800
+    TOP_FRONT_LEFT          = 0x00001000
+    TOP_FRONT_RIGHT         = 0x00002000
+    TOP_FRONT_CENTER        = 0x00004000
+    TOP_CENTER              = 0x00008000
+    TOP_BACK_LEFT           = 0x00010000
+    TOP_BACK_RIGHT          = 0x00020000
+    TOP_SIDE_LEFT           = 0x00040000
+    TOP_SIDE_RIGHT          = 0x00080000
+    TOP_BACK_CENTER         = 0x00100000
+    BOTTOM_FRONT_CENTER     = 0x00200000
+    BOTTOM_FRONT_LEFT       = 0x00400000
+    BOTTOM_FRONT_RIGHT      = 0x00800000
+    FRONT_LEFT_WIDE         = 0x01000000
+    FRONT_RIGHT_WIDE        = 0x02000000
+    LEFT_SURROUND           = 0x04000000
+    RIGHT_SURROUND          = 0x08000000
+
+
+class AudioInputType(enum.IntEnum):
+    '''Bluetooth Assigned Numbers, Section 6.12.2 - Audio Input Type'''
+
+    # fmt: off
+    UNSPECIFIED = 0x00
+    BLUETOOTH   = 0x01
+    MICROPHONE  = 0x02
+    ANALOG      = 0x03
+    DIGITAL     = 0x04
+    RADIO       = 0x05
+    STREAMING   = 0x06
+    AMBIENT     = 0x07
+
+
+class ContextType(enum.IntFlag):
+    '''Bluetooth Assigned Numbers, Section 6.12.3 - Context Type'''
+
+    # fmt: off
+    PROHIBITED       = 0x0000
+    CONVERSATIONAL   = 0x0002
+    MEDIA            = 0x0004
+    GAME             = 0x0008
+    INSTRUCTIONAL    = 0x0010
+    VOICE_ASSISTANTS = 0x0020
+    LIVE             = 0x0040
+    SOUND_EFFECTS    = 0x0080
+    NOTIFICATIONS    = 0x0100
+    RINGTONE         = 0x0200
+    ALERTS           = 0x0400
+    EMERGENCY_ALARM  = 0x0800
+
+
+class SamplingFrequency(enum.IntEnum):
+    '''Bluetooth Assigned Numbers, Section 6.12.5.1 - Sampling Frequency'''
+
+    # fmt: off
+    FREQ_8000    = 0x01 
+    FREQ_11025   = 0x02
+    FREQ_16000   = 0x03
+    FREQ_22050   = 0x04
+    FREQ_24000   = 0x05
+    FREQ_32000   = 0x06
+    FREQ_44100   = 0x07
+    FREQ_48000   = 0x08
+    FREQ_88200   = 0x09
+    FREQ_96000   = 0x0A
+    FREQ_176400  = 0x0B
+    FREQ_192000  = 0x0C
+    FREQ_384000  = 0x0D
+    # fmt: on
+
+    @classmethod
+    def from_hz(cls, frequency: int) -> SamplingFrequency:
+        return {
+            8000: SamplingFrequency.FREQ_8000,
+            11025: SamplingFrequency.FREQ_11025,
+            16000: SamplingFrequency.FREQ_16000,
+            22050: SamplingFrequency.FREQ_22050,
+            24000: SamplingFrequency.FREQ_24000,
+            32000: SamplingFrequency.FREQ_32000,
+            44100: SamplingFrequency.FREQ_44100,
+            48000: SamplingFrequency.FREQ_48000,
+            88200: SamplingFrequency.FREQ_88200,
+            96000: SamplingFrequency.FREQ_96000,
+            176400: SamplingFrequency.FREQ_176400,
+            192000: SamplingFrequency.FREQ_192000,
+            384000: SamplingFrequency.FREQ_384000,
+        }[frequency]
+
+    @property
+    def hz(self) -> int:
+        return {
+            SamplingFrequency.FREQ_8000: 8000,
+            SamplingFrequency.FREQ_11025: 11025,
+            SamplingFrequency.FREQ_16000: 16000,
+            SamplingFrequency.FREQ_22050: 22050,
+            SamplingFrequency.FREQ_24000: 24000,
+            SamplingFrequency.FREQ_32000: 32000,
+            SamplingFrequency.FREQ_44100: 44100,
+            SamplingFrequency.FREQ_48000: 48000,
+            SamplingFrequency.FREQ_88200: 88200,
+            SamplingFrequency.FREQ_96000: 96000,
+            SamplingFrequency.FREQ_176400: 176400,
+            SamplingFrequency.FREQ_192000: 192000,
+            SamplingFrequency.FREQ_384000: 384000,
+        }[self]
+
+
+class SupportedSamplingFrequency(enum.IntFlag):
+    '''Bluetooth Assigned Numbers, Section 6.12.4.1 - Sample Frequency'''
+
+    # fmt: off
+    FREQ_8000    = 1 << (SamplingFrequency.FREQ_8000 - 1)
+    FREQ_11025   = 1 << (SamplingFrequency.FREQ_11025 - 1)
+    FREQ_16000   = 1 << (SamplingFrequency.FREQ_16000 - 1)
+    FREQ_22050   = 1 << (SamplingFrequency.FREQ_22050 - 1)
+    FREQ_24000   = 1 << (SamplingFrequency.FREQ_24000 - 1)
+    FREQ_32000   = 1 << (SamplingFrequency.FREQ_32000 - 1)
+    FREQ_44100   = 1 << (SamplingFrequency.FREQ_44100 - 1)
+    FREQ_48000   = 1 << (SamplingFrequency.FREQ_48000 - 1)
+    FREQ_88200   = 1 << (SamplingFrequency.FREQ_88200 - 1)
+    FREQ_96000   = 1 << (SamplingFrequency.FREQ_96000 - 1)
+    FREQ_176400  = 1 << (SamplingFrequency.FREQ_176400 - 1)
+    FREQ_192000  = 1 << (SamplingFrequency.FREQ_192000 - 1)
+    FREQ_384000  = 1 << (SamplingFrequency.FREQ_384000 - 1)
+    # fmt: on
+
+    @classmethod
+    def from_hz(cls, frequencies: Sequence[int]) -> SupportedSamplingFrequency:
+        MAPPING = {
+            8000: SupportedSamplingFrequency.FREQ_8000,
+            11025: SupportedSamplingFrequency.FREQ_11025,
+            16000: SupportedSamplingFrequency.FREQ_16000,
+            22050: SupportedSamplingFrequency.FREQ_22050,
+            24000: SupportedSamplingFrequency.FREQ_24000,
+            32000: SupportedSamplingFrequency.FREQ_32000,
+            44100: SupportedSamplingFrequency.FREQ_44100,
+            48000: SupportedSamplingFrequency.FREQ_48000,
+            88200: SupportedSamplingFrequency.FREQ_88200,
+            96000: SupportedSamplingFrequency.FREQ_96000,
+            176400: SupportedSamplingFrequency.FREQ_176400,
+            192000: SupportedSamplingFrequency.FREQ_192000,
+            384000: SupportedSamplingFrequency.FREQ_384000,
+        }
+
+        return functools.reduce(
+            lambda x, y: x | MAPPING[y],
+            frequencies,
+            cls(0),
+        )
+
+
+class FrameDuration(enum.IntEnum):
+    '''Bluetooth Assigned Numbers, Section 6.12.5.2 - Frame Duration'''
+
+    # fmt: off
+    DURATION_7500_US  = 0x00
+    DURATION_10000_US = 0x01
+
+
+class SupportedFrameDuration(enum.IntFlag):
+    '''Bluetooth Assigned Numbers, Section 6.12.4.2 - Frame Duration'''
+
+    # fmt: off
+    DURATION_7500_US_SUPPORTED  = 0b0001
+    DURATION_10000_US_SUPPORTED = 0b0010
+    DURATION_7500_US_PREFERRED  = 0b0001
+    DURATION_10000_US_PREFERRED = 0b0010
+
+
+# -----------------------------------------------------------------------------
+# Utils
+# -----------------------------------------------------------------------------
+
+
+def bits_to_channel_counts(data: int) -> List[int]:
+    pos = 0
+    counts = []
+    while data != 0:
+        # Bit 0 = count 1
+        # Bit 1 = count 2, and so on
+        pos += 1
+        if data & 1:
+            counts.append(pos)
+        data >>= 1
+    return counts
+
+
+def channel_counts_to_bits(counts: Sequence[int]) -> int:
+    return sum(set([1 << (count - 1) for count in counts]))
+
+
+# -----------------------------------------------------------------------------
+# Structures
+# -----------------------------------------------------------------------------
+
+
+@dataclasses.dataclass
+class CodecSpecificCapabilities:
+    '''See:
+    * Bluetooth Assigned Numbers, 6.12.4 - Codec Specific Capabilities LTV Structures
+    * Basic Audio Profile, 4.3.1 - Codec_Specific_Capabilities LTV requirements
+    '''
+
+    class Type(enum.IntEnum):
+        # fmt: off
+        SAMPLING_FREQUENCY   = 0x01
+        FRAME_DURATION       = 0x02
+        AUDIO_CHANNEL_COUNT  = 0x03
+        OCTETS_PER_FRAME     = 0x04
+        CODEC_FRAMES_PER_SDU = 0x05
+
+    supported_sampling_frequencies: SupportedSamplingFrequency
+    supported_frame_durations: SupportedFrameDuration
+    supported_audio_channel_counts: Sequence[int]
+    min_octets_per_codec_frame: int
+    max_octets_per_codec_frame: int
+    supported_max_codec_frames_per_sdu: int
+
+    @classmethod
+    def from_bytes(cls, data: bytes) -> CodecSpecificCapabilities:
+        offset = 0
+        # Allowed default values.
+        supported_audio_channel_counts = [1]
+        supported_max_codec_frames_per_sdu = 1
+        while offset < len(data):
+            length, type = struct.unpack_from('BB', data, offset)
+            offset += 2
+            value = int.from_bytes(data[offset : offset + length - 1], 'little')
+            offset += length - 1
+
+            if type == CodecSpecificCapabilities.Type.SAMPLING_FREQUENCY:
+                supported_sampling_frequencies = SupportedSamplingFrequency(value)
+            elif type == CodecSpecificCapabilities.Type.FRAME_DURATION:
+                supported_frame_durations = SupportedFrameDuration(value)
+            elif type == CodecSpecificCapabilities.Type.AUDIO_CHANNEL_COUNT:
+                supported_audio_channel_counts = bits_to_channel_counts(value)
+            elif type == CodecSpecificCapabilities.Type.OCTETS_PER_FRAME:
+                min_octets_per_sample = value & 0xFFFF
+                max_octets_per_sample = value >> 16
+            elif type == CodecSpecificCapabilities.Type.CODEC_FRAMES_PER_SDU:
+                supported_max_codec_frames_per_sdu = value
+
+        # It is expected here that if some fields are missing, an error should be raised.
+        return CodecSpecificCapabilities(
+            supported_sampling_frequencies=supported_sampling_frequencies,
+            supported_frame_durations=supported_frame_durations,
+            supported_audio_channel_counts=supported_audio_channel_counts,
+            min_octets_per_codec_frame=min_octets_per_sample,
+            max_octets_per_codec_frame=max_octets_per_sample,
+            supported_max_codec_frames_per_sdu=supported_max_codec_frames_per_sdu,
+        )
+
+    def __bytes__(self) -> bytes:
+        return struct.pack(
+            '<BBHBBBBBBBBHHBBB',
+            3,
+            CodecSpecificCapabilities.Type.SAMPLING_FREQUENCY,
+            self.supported_sampling_frequencies,
+            2,
+            CodecSpecificCapabilities.Type.FRAME_DURATION,
+            self.supported_frame_durations,
+            2,
+            CodecSpecificCapabilities.Type.AUDIO_CHANNEL_COUNT,
+            channel_counts_to_bits(self.supported_audio_channel_counts),
+            5,
+            CodecSpecificCapabilities.Type.OCTETS_PER_FRAME,
+            self.min_octets_per_codec_frame,
+            self.max_octets_per_codec_frame,
+            2,
+            CodecSpecificCapabilities.Type.CODEC_FRAMES_PER_SDU,
+            self.supported_max_codec_frames_per_sdu,
+        )
+
+
+@dataclasses.dataclass
+class PacRecord:
+    coding_format: hci.CodingFormat
+    codec_specific_capabilities: Union[CodecSpecificCapabilities, bytes]
+    # TODO: Parse Metadata
+    metadata: bytes = b''
+
+    @classmethod
+    def from_bytes(cls, data: bytes) -> PacRecord:
+        offset, coding_format = hci.CodingFormat.parse_from_bytes(data, 0)
+        codec_specific_capabilities_size = data[offset]
+
+        offset += 1
+        codec_specific_capabilities_bytes = data[
+            offset : offset + codec_specific_capabilities_size
+        ]
+        offset += codec_specific_capabilities_size
+        metadata_size = data[offset]
+        metadata = data[offset : offset + metadata_size]
+
+        codec_specific_capabilities: Union[CodecSpecificCapabilities, bytes]
+        if coding_format.codec_id == hci.CodecID.VENDOR_SPECIFIC:
+            codec_specific_capabilities = codec_specific_capabilities_bytes
+        else:
+            codec_specific_capabilities = CodecSpecificCapabilities.from_bytes(
+                codec_specific_capabilities_bytes
+            )
+
+        return PacRecord(
+            coding_format=coding_format,
+            codec_specific_capabilities=codec_specific_capabilities,
+            metadata=metadata,
+        )
+
+    def __bytes__(self) -> bytes:
+        capabilities_bytes = bytes(self.codec_specific_capabilities)
+        return (
+            bytes(self.coding_format)
+            + bytes([len(capabilities_bytes)])
+            + capabilities_bytes
+            + bytes([len(self.metadata)])
+            + self.metadata
+        )
+
+
+# -----------------------------------------------------------------------------
+# Server
+# -----------------------------------------------------------------------------
+class PublishedAudioCapabilitiesService(gatt.TemplateService):
+    UUID = gatt.GATT_PUBLISHED_AUDIO_CAPABILITIES_SERVICE
+
+    sink_pac: Optional[gatt.Characteristic]
+    sink_audio_locations: Optional[gatt.Characteristic]
+    source_pac: Optional[gatt.Characteristic]
+    source_audio_locations: Optional[gatt.Characteristic]
+    available_audio_contexts: gatt.Characteristic
+    supported_audio_contexts: gatt.Characteristic
+
+    def __init__(
+        self,
+        supported_source_context: ContextType,
+        supported_sink_context: ContextType,
+        available_source_context: ContextType,
+        available_sink_context: ContextType,
+        sink_pac: Sequence[PacRecord] = [],
+        sink_audio_locations: Optional[AudioLocation] = None,
+        source_pac: Sequence[PacRecord] = [],
+        source_audio_locations: Optional[AudioLocation] = None,
+    ) -> None:
+        characteristics = []
+
+        self.supported_audio_contexts = gatt.Characteristic(
+            uuid=gatt.GATT_SUPPORTED_AUDIO_CONTEXTS_CHARACTERISTIC,
+            properties=gatt.Characteristic.Properties.READ,
+            permissions=gatt.Characteristic.Permissions.READABLE,
+            value=struct.pack('<HH', supported_sink_context, supported_source_context),
+        )
+        characteristics.append(self.supported_audio_contexts)
+
+        self.available_audio_contexts = gatt.Characteristic(
+            uuid=gatt.GATT_AVAILABLE_AUDIO_CONTEXTS_CHARACTERISTIC,
+            properties=gatt.Characteristic.Properties.READ
+            | gatt.Characteristic.Properties.NOTIFY,
+            permissions=gatt.Characteristic.Permissions.READABLE,
+            value=struct.pack('<HH', available_sink_context, available_source_context),
+        )
+        characteristics.append(self.available_audio_contexts)
+
+        if sink_pac:
+            self.sink_pac = gatt.Characteristic(
+                uuid=gatt.GATT_SINK_PAC_CHARACTERISTIC,
+                properties=gatt.Characteristic.Properties.READ,
+                permissions=gatt.Characteristic.Permissions.READABLE,
+                value=bytes([len(sink_pac)]) + b''.join(map(bytes, sink_pac)),
+            )
+            characteristics.append(self.sink_pac)
+
+        if sink_audio_locations is not None:
+            self.sink_audio_locations = gatt.Characteristic(
+                uuid=gatt.GATT_SINK_AUDIO_LOCATION_CHARACTERISTIC,
+                properties=gatt.Characteristic.Properties.READ,
+                permissions=gatt.Characteristic.Permissions.READABLE,
+                value=struct.pack('<I', sink_audio_locations),
+            )
+            characteristics.append(self.sink_audio_locations)
+
+        if source_pac:
+            self.source_pac = gatt.Characteristic(
+                uuid=gatt.GATT_SOURCE_PAC_CHARACTERISTIC,
+                properties=gatt.Characteristic.Properties.READ,
+                permissions=gatt.Characteristic.Permissions.READABLE,
+                value=bytes([len(source_pac)]) + b''.join(map(bytes, source_pac)),
+            )
+            characteristics.append(self.source_pac)
+
+        if source_audio_locations is not None:
+            self.source_audio_locations = gatt.Characteristic(
+                uuid=gatt.GATT_SOURCE_AUDIO_LOCATION_CHARACTERISTIC,
+                properties=gatt.Characteristic.Properties.READ,
+                permissions=gatt.Characteristic.Permissions.READABLE,
+                value=struct.pack('<I', source_audio_locations),
+            )
+            characteristics.append(self.source_audio_locations)
+
+        super().__init__(characteristics)
+
+
+# -----------------------------------------------------------------------------
+# Client
+# -----------------------------------------------------------------------------
+class PublishedAudioCapabilitiesServiceProxy(gatt_client.ProfileServiceProxy):
+    SERVICE_CLASS = PublishedAudioCapabilitiesService
+
+    sink_pac: Optional[gatt_client.CharacteristicProxy] = None
+    sink_audio_locations: Optional[gatt_client.CharacteristicProxy] = None
+    source_pac: Optional[gatt_client.CharacteristicProxy] = None
+    source_audio_locations: Optional[gatt_client.CharacteristicProxy] = None
+    available_audio_contexts: gatt_client.CharacteristicProxy
+    supported_audio_contexts: gatt_client.CharacteristicProxy
+
+    def __init__(self, service_proxy: gatt_client.ServiceProxy):
+        self.service_proxy = service_proxy
+
+        self.available_audio_contexts = service_proxy.get_characteristics_by_uuid(
+            gatt.GATT_AVAILABLE_AUDIO_CONTEXTS_CHARACTERISTIC
+        )[0]
+        self.supported_audio_contexts = service_proxy.get_characteristics_by_uuid(
+            gatt.GATT_SUPPORTED_AUDIO_CONTEXTS_CHARACTERISTIC
+        )[0]
+
+        if characteristics := service_proxy.get_characteristics_by_uuid(
+            gatt.GATT_SINK_PAC_CHARACTERISTIC
+        ):
+            self.sink_pac = characteristics[0]
+
+        if characteristics := service_proxy.get_characteristics_by_uuid(
+            gatt.GATT_SOURCE_PAC_CHARACTERISTIC
+        ):
+            self.source_pac = characteristics[0]
+
+        if characteristics := service_proxy.get_characteristics_by_uuid(
+            gatt.GATT_SINK_AUDIO_LOCATION_CHARACTERISTIC
+        ):
+            self.sink_audio_locations = characteristics[0]
+
+        if characteristics := service_proxy.get_characteristics_by_uuid(
+            gatt.GATT_SOURCE_AUDIO_LOCATION_CHARACTERISTIC
+        ):
+            self.source_audio_locations = characteristics[0]

bumble/smp.py

@@ -1090,7 +1090,7 @@ class Session:
         # We can now encrypt the connection with the short term key, so that we can
         # distribute the long term and/or other keys over an encrypted connection
         self.manager.device.host.send_command_sync(
-            HCI_LE_Enable_Encryption_Command(  # type: ignore[call-arg]
+            HCI_LE_Enable_Encryption_Command(
                 connection_handle=self.connection.handle,
                 random_number=bytes(8),
                 encrypted_diversifier=0,

bumble/transport/__init__.py

@@ -18,6 +18,7 @@
 from contextlib import asynccontextmanager
 import logging
 import os
+from typing import Optional
 
 from .common import Transport, AsyncPipeSink, SnoopingTransport
 from ..snoop import create_snooper
@@ -52,8 +53,16 @@ def _wrap_transport(transport: Transport) -> Transport:
 async def open_transport(name: str) -> Transport:
     """
     Open a transport by name.
-    The name must be <type>:<parameters>
+    The name must be <type>:<metadata><parameters>
-    Where <parameters> depend on the type (and may be empty for some types).
+    Where <parameters> depend on the type (and may be empty for some types), and
+    <metadata> is either omitted, or a ,-separated list of <key>=<value> pairs,
+    enclosed in [].
+    If there are not metadata or parameter, the : after the <type> may be omitted.
+    Examples:
+      * usb:0
+      * usb:[driver=rtk]0
+      * android-netsim
+
     The supported types are:
       * serial
       * udp
@@ -71,87 +80,106 @@ async def open_transport(name: str) -> Transport:
       * android-netsim
     """
 
-    return _wrap_transport(await _open_transport(name))
+    scheme, *tail = name.split(':', 1)
+    spec = tail[0] if tail else None
+    if spec:
+        # Metadata may precede the spec
+        if spec.startswith('['):
+            metadata_str, *tail = spec[1:].split(']')
+            spec = tail[0] if tail else None
+            metadata = dict([entry.split('=') for entry in metadata_str.split(',')])
+        else:
+            metadata = None
+
+    transport = await _open_transport(scheme, spec)
+    if metadata:
+        transport.source.metadata = {  # type: ignore[attr-defined]
+            **metadata,
+            **getattr(transport.source, 'metadata', {}),
+        }
+        # pylint: disable=line-too-long
+        logger.debug(f'HCI metadata: {transport.source.metadata}')  # type: ignore[attr-defined]
+
+    return _wrap_transport(transport)
 
 
 # -----------------------------------------------------------------------------
-async def _open_transport(name: str) -> Transport:
+async def _open_transport(scheme: str, spec: Optional[str]) -> Transport:
     # pylint: disable=import-outside-toplevel
     # pylint: disable=too-many-return-statements
 
-    scheme, *spec = name.split(':', 1)
     if scheme == 'serial' and spec:
         from .serial import open_serial_transport
 
-        return await open_serial_transport(spec[0])
+        return await open_serial_transport(spec)
 
     if scheme == 'udp' and spec:
         from .udp import open_udp_transport
 
-        return await open_udp_transport(spec[0])
+        return await open_udp_transport(spec)
 
     if scheme == 'tcp-client' and spec:
         from .tcp_client import open_tcp_client_transport
 
-        return await open_tcp_client_transport(spec[0])
+        return await open_tcp_client_transport(spec)
 
     if scheme == 'tcp-server' and spec:
         from .tcp_server import open_tcp_server_transport
 
-        return await open_tcp_server_transport(spec[0])
+        return await open_tcp_server_transport(spec)
 
     if scheme == 'ws-client' and spec:
         from .ws_client import open_ws_client_transport
 
-        return await open_ws_client_transport(spec[0])
+        return await open_ws_client_transport(spec)
 
     if scheme == 'ws-server' and spec:
         from .ws_server import open_ws_server_transport
 
-        return await open_ws_server_transport(spec[0])
+        return await open_ws_server_transport(spec)
 
     if scheme == 'pty':
         from .pty import open_pty_transport
 
-        return await open_pty_transport(spec[0] if spec else None)
+        return await open_pty_transport(spec)
 
     if scheme == 'file':
         from .file import open_file_transport
 
         assert spec is not None
-        return await open_file_transport(spec[0])
+        return await open_file_transport(spec)
 
     if scheme == 'vhci':
         from .vhci import open_vhci_transport
 
-        return await open_vhci_transport(spec[0] if spec else None)
+        return await open_vhci_transport(spec)
 
     if scheme == 'hci-socket':
         from .hci_socket import open_hci_socket_transport
 
-        return await open_hci_socket_transport(spec[0] if spec else None)
+        return await open_hci_socket_transport(spec)
 
     if scheme == 'usb':
         from .usb import open_usb_transport
 
-        assert spec is not None
+        assert spec
-        return await open_usb_transport(spec[0])
+        return await open_usb_transport(spec)
 
     if scheme == 'pyusb':
         from .pyusb import open_pyusb_transport
 
-        assert spec is not None
+        assert spec
-        return await open_pyusb_transport(spec[0])
+        return await open_pyusb_transport(spec)
 
     if scheme == 'android-emulator':
         from .android_emulator import open_android_emulator_transport
 
-        return await open_android_emulator_transport(spec[0] if spec else None)
+        return await open_android_emulator_transport(spec)
 
     if scheme == 'android-netsim':
         from .android_netsim import open_android_netsim_transport
 
-        return await open_android_netsim_transport(spec[0] if spec else None)
+        return await open_android_netsim_transport(spec)
 
     raise ValueError('unknown transport scheme')
 

bumble/transport/android_emulator.py

@@ -69,7 +69,7 @@ async def open_android_emulator_transport(spec: Optional[str]) -> Transport:
     mode = 'host'
     server_host = 'localhost'
     server_port = '8554'
-    if spec is not None:
+    if spec:
         params = spec.split(',')
         for param in params:
             if param.startswith('mode='):

bumble/transport/common.py

@@ -21,7 +21,7 @@ import struct
 import asyncio
 import logging
 import io
-from typing import ContextManager, Tuple, Optional, Protocol, Dict
+from typing import Any, ContextManager, Tuple, Optional, Protocol, Dict
 
 from bumble import hci
 from bumble.colors import color
@@ -42,6 +42,7 @@ HCI_PACKET_INFO: Dict[int, Tuple[int, int, str]] = {
     hci.HCI_ACL_DATA_PACKET: (2, 2, 'H'),
     hci.HCI_SYNCHRONOUS_DATA_PACKET: (1, 2, 'B'),
     hci.HCI_EVENT_PACKET: (1, 1, 'B'),
+    hci.HCI_ISO_DATA_PACKET: (2, 2, 'H'),
 }
 
 

bumble/transport/hci_socket.py

@@ -59,10 +59,7 @@ async def open_hci_socket_transport(spec: Optional[str]) -> Transport:
         ) from error
 
     # Compute the adapter index
-    if spec is None:
+    adapter_index = int(spec) if spec else 0
-        adapter_index = 0
-    else:
-        adapter_index = int(spec)
 
     # Bind the socket
     # NOTE: since Python doesn't support binding with the required address format (yet),

docs/mkdocs/src/drivers/index.md

@@ -5,6 +5,15 @@ Some Bluetooth controllers require a driver to function properly.
 This may include, for instance, loading a Firmware image or patch,
 loading a configuration.
 
+By default, drivers will be automatically probed to determine if they should be
+used with particular HCI controller.
+When the transport for an HCI controller is instantiated from a transport name,
+a driver may also be forced by specifying ``driver=<driver-name>`` in the optional
+metadata portion of the transport name. For example,
+``usb:[driver=-rtk]0`` indicates that the ``rtk`` driver should be used with the
+first USB device, even if a normal probe would not have selected it based on the
+USB vendor ID and product ID.
+
 Drivers included in the module are:
 
   * [Realtek](realtek.md): Loading of Firmware and Config for Realtek USB dongles.

docs/mkdocs/src/drivers/realtek.md

@@ -1,13 +1,16 @@
 REALTEK DRIVER
 ==============
 
-This driver supports loading firmware images and optional config data to 
+This driver supports loading firmware images and optional config data to
 USB dongles with a Realtek chipset.
 A number of USB dongles are supported, but likely not all.
-When using a USB dongle, the USB product ID and manufacturer ID are used
+When using a USB dongle, the USB product ID and vendor ID are used
 to find whether a matching set of firmware image and config data
 is needed for that specific model. If a match exists, the driver will try
 load the firmware image and, if needed, config data.
+Alternatively, the metadata property ``driver=rtk`` may be specified in a transport
+name to force that driver to be used (ex: ``usb:[driver=rtk]0`` instead of just
+``usb:0`` for the first USB device).
 The driver will look for those files by name, in order, in:
 
   * The directory specified by the environment variable `BUMBLE_RTK_FIRMWARE_DIR`

examples/run_esco_connection.py

@@ -73,7 +73,6 @@ async def main() -> None:
         HCI_Enhanced_Setup_Synchronous_Connection_Command(
             connection_handle=connections[0].handle,
             **ESCO_PARAMETERS[DefaultCodecParameters.ESCO_CVSD_S3].asdict(),
-            # type: ignore[call-args]
         )
     )
 

examples/run_unicast_server.py

@@ -0,0 +1,134 @@
+# Copyright 2021-2023 Google LLC
+#
+# 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
+#
+#      https://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.
+
+# -----------------------------------------------------------------------------
+# Imports
+# -----------------------------------------------------------------------------
+import asyncio
+import logging
+import sys
+import os
+from bumble.core import AdvertisingData
+from bumble.device import Device
+from bumble.hci import (
+    CodecID,
+    CodingFormat,
+    OwnAddressType,
+    HCI_LE_Set_Extended_Advertising_Parameters_Command,
+)
+from bumble.profiles.bap import (
+    CodecSpecificCapabilities,
+    ContextType,
+    AudioLocation,
+    SupportedSamplingFrequency,
+    SupportedFrameDuration,
+    PacRecord,
+    PublishedAudioCapabilitiesService,
+)
+
+from bumble.transport import open_transport_or_link
+
+
+# -----------------------------------------------------------------------------
+async def main() -> None:
+    if len(sys.argv) < 3:
+        print('Usage: run_cig_setup.py <config-file>' '<transport-spec-for-device>')
+        return
+
+    print('<<< connecting to HCI...')
+    async with await open_transport_or_link(sys.argv[2]) as hci_transport:
+        print('<<< connected')
+
+        device = Device.from_config_file_with_hci(
+            sys.argv[1], hci_transport.source, hci_transport.sink
+        )
+        device.cis_enabled = True
+
+        await device.power_on()
+
+        device.add_service(
+            PublishedAudioCapabilitiesService(
+                supported_source_context=ContextType.PROHIBITED,
+                available_source_context=ContextType.PROHIBITED,
+                supported_sink_context=ContextType.MEDIA,
+                available_sink_context=ContextType.MEDIA,
+                sink_audio_locations=(
+                    AudioLocation.FRONT_LEFT | AudioLocation.FRONT_RIGHT
+                ),
+                sink_pac=[
+                    # Codec Capability Setting 16_2
+                    PacRecord(
+                        coding_format=CodingFormat(CodecID.LC3),
+                        codec_specific_capabilities=CodecSpecificCapabilities(
+                            supported_sampling_frequencies=(
+                                SupportedSamplingFrequency.FREQ_16000
+                            ),
+                            supported_frame_durations=(
+                                SupportedFrameDuration.DURATION_10000_US_SUPPORTED
+                            ),
+                            supported_audio_channel_counts=[1],
+                            min_octets_per_codec_frame=40,
+                            max_octets_per_codec_frame=40,
+                            supported_max_codec_frames_per_sdu=1,
+                        ),
+                    ),
+                    # Codec Capability Setting 24_2
+                    PacRecord(
+                        coding_format=CodingFormat(CodecID.LC3),
+                        codec_specific_capabilities=CodecSpecificCapabilities(
+                            supported_sampling_frequencies=(
+                                SupportedSamplingFrequency.FREQ_24000
+                            ),
+                            supported_frame_durations=(
+                                SupportedFrameDuration.DURATION_10000_US_SUPPORTED
+                            ),
+                            supported_audio_channel_counts=[1],
+                            min_octets_per_codec_frame=60,
+                            max_octets_per_codec_frame=60,
+                            supported_max_codec_frames_per_sdu=1,
+                        ),
+                    ),
+                ],
+            )
+        )
+
+        advertising_data = bytes(
+            AdvertisingData(
+                [
+                    (
+                        AdvertisingData.COMPLETE_LOCAL_NAME,
+                        bytes('Bumble LE Audio', 'utf-8'),
+                    ),
+                    (
+                        AdvertisingData.INCOMPLETE_LIST_OF_16_BIT_SERVICE_CLASS_UUIDS,
+                        bytes(PublishedAudioCapabilitiesService.UUID),
+                    ),
+                ]
+            )
+        )
+
+        await device.start_extended_advertising(
+            advertising_properties=(
+                HCI_LE_Set_Extended_Advertising_Parameters_Command.AdvertisingProperties.CONNECTABLE_ADVERTISING
+            ),
+            own_address_type=OwnAddressType.RANDOM,
+            advertising_data=advertising_data,
+        )
+
+        await hci_transport.source.terminated
+
+
+# -----------------------------------------------------------------------------
+logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'DEBUG').upper())
+asyncio.run(main())

rust/Cargo.lock

@@ -1073,9 +1073,9 @@ checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "openssl"
-version = "0.10.57"
+version = "0.10.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bac25ee399abb46215765b1cb35bc0212377e58a061560d8b29b024fd0430e7c"
+checksum = "79a4c6c3a2b158f7f8f2a2fc5a969fa3a068df6fc9dbb4a43845436e3af7c800"
 dependencies = [
  "bitflags 2.4.0",
  "cfg-if",
@@ -1105,9 +1105,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.92"
+version = "0.9.96"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db7e971c2c2bba161b2d2fdf37080177eff520b3bc044787c7f1f5f9e78d869b"
+checksum = "3812c071ba60da8b5677cc12bcb1d42989a65553772897a7e0355545a819838f"
 dependencies = [
  "cc",
  "libc",

tests/bap_test.py

@@ -0,0 +1,151 @@
+# Copyright 2021-2023 Google LLC
+#
+# 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
+#
+#      https://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.
+
+# -----------------------------------------------------------------------------
+# Imports
+# -----------------------------------------------------------------------------
+import asyncio
+import os
+import pytest
+import logging
+
+from bumble import device
+from bumble.hci import CodecID, CodingFormat
+from bumble.profiles.bap import (
+    AudioLocation,
+    SupportedFrameDuration,
+    SupportedSamplingFrequency,
+    CodecSpecificCapabilities,
+    ContextType,
+    PacRecord,
+    PublishedAudioCapabilitiesService,
+    PublishedAudioCapabilitiesServiceProxy,
+)
+from .test_utils import TwoDevices
+
+# -----------------------------------------------------------------------------
+# Logging
+# -----------------------------------------------------------------------------
+logger = logging.getLogger(__name__)
+
+
+# -----------------------------------------------------------------------------
+def test_codec_specific_capabilities() -> None:
+    SAMPLE_FREQUENCY = SupportedSamplingFrequency.FREQ_16000
+    FRAME_SURATION = SupportedFrameDuration.DURATION_10000_US_SUPPORTED
+    AUDIO_CHANNEL_COUNTS = [1]
+    cap = CodecSpecificCapabilities(
+        supported_sampling_frequencies=SAMPLE_FREQUENCY,
+        supported_frame_durations=FRAME_SURATION,
+        supported_audio_channel_counts=AUDIO_CHANNEL_COUNTS,
+        min_octets_per_codec_frame=40,
+        max_octets_per_codec_frame=40,
+        supported_max_codec_frames_per_sdu=1,
+    )
+    assert CodecSpecificCapabilities.from_bytes(bytes(cap)) == cap
+
+
+# -----------------------------------------------------------------------------
+def test_pac_record() -> None:
+    SAMPLE_FREQUENCY = SupportedSamplingFrequency.FREQ_16000
+    FRAME_SURATION = SupportedFrameDuration.DURATION_10000_US_SUPPORTED
+    AUDIO_CHANNEL_COUNTS = [1]
+    cap = CodecSpecificCapabilities(
+        supported_sampling_frequencies=SAMPLE_FREQUENCY,
+        supported_frame_durations=FRAME_SURATION,
+        supported_audio_channel_counts=AUDIO_CHANNEL_COUNTS,
+        min_octets_per_codec_frame=40,
+        max_octets_per_codec_frame=40,
+        supported_max_codec_frames_per_sdu=1,
+    )
+
+    pac_record = PacRecord(
+        coding_format=CodingFormat(CodecID.LC3),
+        codec_specific_capabilities=cap,
+        metadata=b'',
+    )
+    assert PacRecord.from_bytes(bytes(pac_record)) == pac_record
+
+
+# -----------------------------------------------------------------------------
+def test_vendor_specific_pac_record() -> None:
+    # Vendor-Specific codec, Google, ID=0xFFFF. No capabilities and metadata.
+    RAW_DATA = bytes.fromhex('ffe000ffff0000')
+    assert bytes(PacRecord.from_bytes(RAW_DATA)) == RAW_DATA
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.asyncio
+async def test_pacs():
+    devices = TwoDevices()
+    devices[0].add_service(
+        PublishedAudioCapabilitiesService(
+            supported_sink_context=ContextType.MEDIA,
+            available_sink_context=ContextType.MEDIA,
+            supported_source_context=0,
+            available_source_context=0,
+            sink_pac=[
+                # Codec Capability Setting 16_2
+                PacRecord(
+                    coding_format=CodingFormat(CodecID.LC3),
+                    codec_specific_capabilities=CodecSpecificCapabilities(
+                        supported_sampling_frequencies=(
+                            SupportedSamplingFrequency.FREQ_16000
+                        ),
+                        supported_frame_durations=(
+                            SupportedFrameDuration.DURATION_10000_US_SUPPORTED
+                        ),
+                        supported_audio_channel_counts=[1],
+                        min_octets_per_codec_frame=40,
+                        max_octets_per_codec_frame=40,
+                        supported_max_codec_frames_per_sdu=1,
+                    ),
+                ),
+                # Codec Capability Setting 24_2
+                PacRecord(
+                    coding_format=CodingFormat(CodecID.LC3),
+                    codec_specific_capabilities=CodecSpecificCapabilities(
+                        supported_sampling_frequencies=(
+                            SupportedSamplingFrequency.FREQ_24000
+                        ),
+                        supported_frame_durations=(
+                            SupportedFrameDuration.DURATION_10000_US_SUPPORTED
+                        ),
+                        supported_audio_channel_counts=[1],
+                        min_octets_per_codec_frame=60,
+                        max_octets_per_codec_frame=60,
+                        supported_max_codec_frames_per_sdu=1,
+                    ),
+                ),
+            ],
+            sink_audio_locations=AudioLocation.FRONT_LEFT | AudioLocation.FRONT_RIGHT,
+        )
+    )
+
+    await devices.setup_connection()
+    peer = device.Peer(devices.connections[1])
+    pacs_client = await peer.discover_service_and_create_proxy(
+        PublishedAudioCapabilitiesServiceProxy
+    )
+
+
+# -----------------------------------------------------------------------------
+async def run():
+    await test_pacs()
+
+
+# -----------------------------------------------------------------------------
+if __name__ == '__main__':
+    logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'INFO').upper())
+    asyncio.run(run())

tests/device_test.py

@@ -20,8 +20,14 @@ import logging
 import os
 from types import LambdaType
 import pytest
+from unittest import mock
 
-from bumble.core import BT_BR_EDR_TRANSPORT
+from bumble.core import (
+    BT_BR_EDR_TRANSPORT,
+    BT_LE_TRANSPORT,
+    BT_PERIPHERAL_ROLE,
+    ConnectionParameters,
+)
 from bumble.device import Connection, Device
 from bumble.host import Host
 from bumble.hci import (
@@ -30,6 +36,7 @@ from bumble.hci import (
     HCI_CREATE_CONNECTION_COMMAND,
     HCI_SUCCESS,
     Address,
+    OwnAddressType,
     HCI_Command_Complete_Event,
     HCI_Command_Status_Event,
     HCI_Connection_Complete_Event,
@@ -232,6 +239,172 @@ async def test_flush():
         pass
 
 
+# -----------------------------------------------------------------------------
+@pytest.mark.asyncio
+async def test_legacy_advertising():
+    device = Device(host=mock.AsyncMock(Host))
+
+    # Start advertising
+    advertiser = await device.start_legacy_advertising()
+    assert device.legacy_advertiser
+
+    # Stop advertising
+    await advertiser.stop()
+    assert not device.legacy_advertiser
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.parametrize(
+    'own_address_type,',
+    (OwnAddressType.PUBLIC, OwnAddressType.RANDOM),
+)
+@pytest.mark.asyncio
+async def test_legacy_advertising_connection(own_address_type):
+    device = Device(host=mock.AsyncMock(Host))
+    peer_address = Address('F0:F1:F2:F3:F4:F5')
+
+    # Start advertising
+    advertiser = await device.start_legacy_advertising()
+    device.on_connection(
+        0x0001,
+        BT_LE_TRANSPORT,
+        peer_address,
+        BT_PERIPHERAL_ROLE,
+        ConnectionParameters(0, 0, 0),
+    )
+
+    if own_address_type == OwnAddressType.PUBLIC:
+        assert device.lookup_connection(0x0001).self_address == device.public_address
+    else:
+        assert device.lookup_connection(0x0001).self_address == device.random_address
+
+    # For unknown reason, read_phy() in on_connection() would be killed at the end of
+    # test, so we force scheduling here to avoid an warning.
+    await asyncio.sleep(0.0001)
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.parametrize(
+    'auto_restart,',
+    (True, False),
+)
+@pytest.mark.asyncio
+async def test_legacy_advertising_disconnection(auto_restart):
+    device = Device(host=mock.AsyncMock(spec=Host))
+    peer_address = Address('F0:F1:F2:F3:F4:F5')
+    advertiser = await device.start_legacy_advertising(auto_restart=auto_restart)
+    device.on_connection(
+        0x0001,
+        BT_LE_TRANSPORT,
+        peer_address,
+        BT_PERIPHERAL_ROLE,
+        ConnectionParameters(0, 0, 0),
+    )
+
+    device.start_legacy_advertising = mock.AsyncMock()
+
+    device.on_disconnection(0x0001, 0)
+
+    if auto_restart:
+        device.start_legacy_advertising.assert_called_with(
+            advertising_type=advertiser.advertising_type,
+            own_address_type=advertiser.own_address_type,
+            auto_restart=advertiser.auto_restart,
+            advertising_data=advertiser.advertising_data,
+            scan_response_data=advertiser.scan_response_data,
+        )
+    else:
+        device.start_legacy_advertising.assert_not_called()
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.asyncio
+async def test_extended_advertising():
+    device = Device(host=mock.AsyncMock(Host))
+
+    # Start advertising
+    advertiser = await device.start_extended_advertising()
+    assert device.extended_advertisers
+
+    # Stop advertising
+    await advertiser.stop()
+    assert not device.extended_advertisers
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.parametrize(
+    'own_address_type,',
+    (OwnAddressType.PUBLIC, OwnAddressType.RANDOM),
+)
+@pytest.mark.asyncio
+async def test_extended_advertising_connection(own_address_type):
+    device = Device(host=mock.AsyncMock(spec=Host))
+    peer_address = Address('F0:F1:F2:F3:F4:F5')
+    advertiser = await device.start_extended_advertising(
+        own_address_type=own_address_type
+    )
+    device.on_connection(
+        0x0001,
+        BT_LE_TRANSPORT,
+        peer_address,
+        BT_PERIPHERAL_ROLE,
+        ConnectionParameters(0, 0, 0),
+    )
+    device.on_advertising_set_termination(
+        HCI_SUCCESS,
+        advertiser.handle,
+        0x0001,
+    )
+
+    if own_address_type == OwnAddressType.PUBLIC:
+        assert device.lookup_connection(0x0001).self_address == device.public_address
+    else:
+        assert device.lookup_connection(0x0001).self_address == device.random_address
+
+    # For unknown reason, read_phy() in on_connection() would be killed at the end of
+    # test, so we force scheduling here to avoid an warning.
+    await asyncio.sleep(0.0001)
+
+
+# -----------------------------------------------------------------------------
+@pytest.mark.parametrize(
+    'auto_restart,',
+    (True, False),
+)
+@pytest.mark.asyncio
+async def test_extended_advertising_disconnection(auto_restart):
+    device = Device(host=mock.AsyncMock(spec=Host))
+    peer_address = Address('F0:F1:F2:F3:F4:F5')
+    advertiser = await device.start_extended_advertising(auto_restart=auto_restart)
+    device.on_connection(
+        0x0001,
+        BT_LE_TRANSPORT,
+        peer_address,
+        BT_PERIPHERAL_ROLE,
+        ConnectionParameters(0, 0, 0),
+    )
+    device.on_advertising_set_termination(
+        HCI_SUCCESS,
+        advertiser.handle,
+        0x0001,
+    )
+
+    device.start_extended_advertising = mock.AsyncMock()
+
+    device.on_disconnection(0x0001, 0)
+
+    if auto_restart:
+        device.start_extended_advertising.assert_called_with(
+            advertising_properties=advertiser.advertising_properties,
+            own_address_type=advertiser.own_address_type,
+            auto_restart=advertiser.auto_restart,
+            advertising_data=advertiser.advertising_data,
+            scan_response_data=advertiser.scan_response_data,
+        )
+    else:
+        device.start_extended_advertising.assert_not_called()
+
+
 # -----------------------------------------------------------------------------
 def test_gatt_services_with_gas():
     device = Device(host=Host(None, None))

tests/hci_test.py

@@ -32,6 +32,7 @@ from bumble.hci import (
     HCI_CustomPacket,
     HCI_Disconnect_Command,
     HCI_Event,
+    HCI_IsoDataPacket,
     HCI_LE_Add_Device_To_Filter_Accept_List_Command,
     HCI_LE_Advertising_Report_Event,
     HCI_LE_Channel_Selection_Algorithm_Event,
@@ -53,6 +54,7 @@ from bumble.hci import (
     HCI_LE_Set_Random_Address_Command,
     HCI_LE_Set_Scan_Enable_Command,
     HCI_LE_Set_Scan_Parameters_Command,
+    HCI_LE_Setup_ISO_Data_Path_Command,
     HCI_Number_Of_Completed_Packets_Event,
     HCI_Packet,
     HCI_PIN_Code_Request_Reply_Command,
@@ -455,6 +457,14 @@ def test_HCI_LE_Setup_ISO_Data_Path_Command():
     assert command.controller_delay == 0
     assert command.codec_configuration == b''
 
+    command = HCI_LE_Setup_ISO_Data_Path_Command(
+        connection_handle=0x0060,
+        data_path_direction=0x00,
+        data_path_id=0x01,
+        codec_id=CodingFormat(CodecID.TRANSPARENT),
+        controller_delay=0x00,
+        codec_configuration=b'',
+    )
     basic_check(command)
 
 
@@ -477,6 +487,29 @@ def test_custom():
     assert packet.payload == data
 
 
+# -----------------------------------------------------------------------------
+def test_iso_data_packet():
+    data = bytes.fromhex(
+        '05616044002ac9f0a193003c00e83b477b00eba8d41dc018bf1a980f0290afe1e7c37652096697'
+        '52b6a535a8df61e22931ef5a36281bc77ed6a3206d984bcdabee6be831c699cb50e2'
+    )
+    packet = HCI_IsoDataPacket.from_bytes(data)
+    assert packet.connection_handle == 0x0061
+    assert packet.packet_status_flag == 0
+    assert packet.pb_flag == 0x02
+    assert packet.ts_flag == 0x01
+    assert packet.data_total_length == 68
+    assert packet.time_stamp == 2716911914
+    assert packet.packet_sequence_number == 147
+    assert packet.iso_sdu_length == 60
+    assert packet.iso_sdu_fragment == bytes.fromhex(
+        'e83b477b00eba8d41dc018bf1a980f0290afe1e7c3765209669752b6a535a8df61e22931ef5a3'
+        '6281bc77ed6a3206d984bcdabee6be831c699cb50e2'
+    )
+
+    assert packet.to_bytes() == data
+
+
 # -----------------------------------------------------------------------------
 def run_test_events():
     test_HCI_Event()
@@ -515,6 +548,7 @@ def run_test_commands():
     test_HCI_LE_Set_Default_PHY_Command()
     test_HCI_LE_Set_Extended_Scan_Parameters_Command()
     test_HCI_LE_Set_Extended_Advertising_Enable_Command()
+    test_HCI_LE_Setup_ISO_Data_Path_Command()
 
 
 # -----------------------------------------------------------------------------
@@ -523,3 +557,4 @@ if __name__ == '__main__':
     run_test_commands()
     test_address()
     test_custom()
+    test_iso_data_packet()