forked from auracaster/bumble_mirror
319 lines
10 KiB
Python
319 lines
10 KiB
Python
# Copyright 2021-2023 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# -----------------------------------------------------------------------------
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# Imports
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# -----------------------------------------------------------------------------
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import struct
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from bumble.hci import (
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name_or_number,
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hci_vendor_command_op_code,
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Address,
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HCI_Constant,
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HCI_Object,
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HCI_Command,
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HCI_Vendor_Event,
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STATUS_SPEC,
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)
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# -----------------------------------------------------------------------------
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# Constants
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# -----------------------------------------------------------------------------
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# Android Vendor Specific Commands and Events.
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# Only a subset of the commands are implemented here currently.
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#
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# pylint: disable-next=line-too-long
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# See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#chip-capabilities-and-configuration
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HCI_LE_GET_VENDOR_CAPABILITIES_COMMAND = hci_vendor_command_op_code(0x153)
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HCI_LE_APCF_COMMAND = hci_vendor_command_op_code(0x157)
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HCI_GET_CONTROLLER_ACTIVITY_ENERGY_INFO_COMMAND = hci_vendor_command_op_code(0x159)
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HCI_A2DP_HARDWARE_OFFLOAD_COMMAND = hci_vendor_command_op_code(0x15D)
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HCI_BLUETOOTH_QUALITY_REPORT_COMMAND = hci_vendor_command_op_code(0x15E)
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HCI_DYNAMIC_AUDIO_BUFFER_COMMAND = hci_vendor_command_op_code(0x15F)
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HCI_BLUETOOTH_QUALITY_REPORT_EVENT = 0x58
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HCI_Command.register_commands(globals())
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HCI_Vendor_Event.register_subevents(globals())
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# -----------------------------------------------------------------------------
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@HCI_Command.command(
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return_parameters_fields=[
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('status', STATUS_SPEC),
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('max_advt_instances', 1),
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('offloaded_resolution_of_private_address', 1),
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('total_scan_results_storage', 2),
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('max_irk_list_sz', 1),
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('filtering_support', 1),
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('max_filter', 1),
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('activity_energy_info_support', 1),
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('version_supported', 2),
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('total_num_of_advt_tracked', 2),
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('extended_scan_support', 1),
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('debug_logging_supported', 1),
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('le_address_generation_offloading_support', 1),
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('a2dp_source_offload_capability_mask', 4),
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('bluetooth_quality_report_support', 1),
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('dynamic_audio_buffer_support', 4),
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]
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)
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class HCI_LE_Get_Vendor_Capabilities_Command(HCI_Command):
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# pylint: disable=line-too-long
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'''
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See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#vendor-specific-capabilities
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'''
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@classmethod
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def parse_return_parameters(cls, parameters):
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# There are many versions of this data structure, so we need to parse until
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# there are no more bytes to parse, and leave un-signal parameters set to
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# None (older versions)
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nones = {field: None for field, _ in cls.return_parameters_fields}
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return_parameters = HCI_Object(cls.return_parameters_fields, **nones)
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try:
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offset = 0
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for field in cls.return_parameters_fields:
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field_name, field_type = field
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field_value, field_size = HCI_Object.parse_field(
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parameters, offset, field_type
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)
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setattr(return_parameters, field_name, field_value)
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offset += field_size
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except struct.error:
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pass
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return return_parameters
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# -----------------------------------------------------------------------------
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@HCI_Command.command(
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fields=[
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(
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'opcode',
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{
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'size': 1,
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'mapper': lambda x: HCI_LE_APCF_Command.opcode_name(x),
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},
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),
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('payload', '*'),
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],
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return_parameters_fields=[
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('status', STATUS_SPEC),
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(
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'opcode',
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{
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'size': 1,
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'mapper': lambda x: HCI_LE_APCF_Command.opcode_name(x),
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},
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),
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('payload', '*'),
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],
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)
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class HCI_LE_APCF_Command(HCI_Command):
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# pylint: disable=line-too-long
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'''
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See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#le_apcf_command
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NOTE: the subcommand-specific payloads are left as opaque byte arrays in this
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implementation. A future enhancement may define subcommand-specific data structures.
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'''
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# APCF Subcommands
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# TODO: use the OpenIntEnum class (when upcoming PR is merged)
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APCF_ENABLE = 0x00
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APCF_SET_FILTERING_PARAMETERS = 0x01
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APCF_BROADCASTER_ADDRESS = 0x02
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APCF_SERVICE_UUID = 0x03
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APCF_SERVICE_SOLICITATION_UUID = 0x04
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APCF_LOCAL_NAME = 0x05
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APCF_MANUFACTURER_DATA = 0x06
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APCF_SERVICE_DATA = 0x07
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APCF_TRANSPORT_DISCOVERY_SERVICE = 0x08
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APCF_AD_TYPE_FILTER = 0x09
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APCF_READ_EXTENDED_FEATURES = 0xFF
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OPCODE_NAMES = {
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APCF_ENABLE: 'APCF_ENABLE',
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APCF_SET_FILTERING_PARAMETERS: 'APCF_SET_FILTERING_PARAMETERS',
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APCF_BROADCASTER_ADDRESS: 'APCF_BROADCASTER_ADDRESS',
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APCF_SERVICE_UUID: 'APCF_SERVICE_UUID',
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APCF_SERVICE_SOLICITATION_UUID: 'APCF_SERVICE_SOLICITATION_UUID',
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APCF_LOCAL_NAME: 'APCF_LOCAL_NAME',
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APCF_MANUFACTURER_DATA: 'APCF_MANUFACTURER_DATA',
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APCF_SERVICE_DATA: 'APCF_SERVICE_DATA',
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APCF_TRANSPORT_DISCOVERY_SERVICE: 'APCF_TRANSPORT_DISCOVERY_SERVICE',
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APCF_AD_TYPE_FILTER: 'APCF_AD_TYPE_FILTER',
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APCF_READ_EXTENDED_FEATURES: 'APCF_READ_EXTENDED_FEATURES',
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}
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@classmethod
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def opcode_name(cls, opcode):
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return name_or_number(cls.OPCODE_NAMES, opcode)
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# -----------------------------------------------------------------------------
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@HCI_Command.command(
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return_parameters_fields=[
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('status', STATUS_SPEC),
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('total_tx_time_ms', 4),
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('total_rx_time_ms', 4),
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('total_idle_time_ms', 4),
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('total_energy_used', 4),
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],
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)
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class HCI_Get_Controller_Activity_Energy_Info_Command(HCI_Command):
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# pylint: disable=line-too-long
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'''
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See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#le_get_controller_activity_energy_info
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'''
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# -----------------------------------------------------------------------------
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@HCI_Command.command(
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fields=[
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(
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'opcode',
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{
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'size': 1,
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'mapper': lambda x: HCI_A2DP_Hardware_Offload_Command.opcode_name(x),
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},
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),
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('payload', '*'),
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],
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return_parameters_fields=[
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('status', STATUS_SPEC),
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(
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'opcode',
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{
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'size': 1,
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'mapper': lambda x: HCI_A2DP_Hardware_Offload_Command.opcode_name(x),
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},
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),
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('payload', '*'),
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],
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)
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class HCI_A2DP_Hardware_Offload_Command(HCI_Command):
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# pylint: disable=line-too-long
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'''
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See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#a2dp-hardware-offload-support
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NOTE: the subcommand-specific payloads are left as opaque byte arrays in this
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implementation. A future enhancement may define subcommand-specific data structures.
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'''
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# A2DP Hardware Offload Subcommands
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# TODO: use the OpenIntEnum class (when upcoming PR is merged)
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START_A2DP_OFFLOAD = 0x01
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STOP_A2DP_OFFLOAD = 0x02
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OPCODE_NAMES = {
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START_A2DP_OFFLOAD: 'START_A2DP_OFFLOAD',
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STOP_A2DP_OFFLOAD: 'STOP_A2DP_OFFLOAD',
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}
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@classmethod
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def opcode_name(cls, opcode):
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return name_or_number(cls.OPCODE_NAMES, opcode)
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# -----------------------------------------------------------------------------
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@HCI_Command.command(
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fields=[
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(
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'opcode',
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{
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'size': 1,
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'mapper': lambda x: HCI_Dynamic_Audio_Buffer_Command.opcode_name(x),
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},
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),
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('payload', '*'),
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],
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return_parameters_fields=[
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('status', STATUS_SPEC),
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(
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'opcode',
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{
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'size': 1,
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'mapper': lambda x: HCI_Dynamic_Audio_Buffer_Command.opcode_name(x),
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},
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),
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('payload', '*'),
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],
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)
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class HCI_Dynamic_Audio_Buffer_Command(HCI_Command):
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# pylint: disable=line-too-long
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'''
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See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#dynamic-audio-buffer-command
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NOTE: the subcommand-specific payloads are left as opaque byte arrays in this
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implementation. A future enhancement may define subcommand-specific data structures.
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'''
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# Dynamic Audio Buffer Subcommands
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# TODO: use the OpenIntEnum class (when upcoming PR is merged)
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GET_AUDIO_BUFFER_TIME_CAPABILITY = 0x01
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OPCODE_NAMES = {
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GET_AUDIO_BUFFER_TIME_CAPABILITY: 'GET_AUDIO_BUFFER_TIME_CAPABILITY',
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}
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@classmethod
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def opcode_name(cls, opcode):
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return name_or_number(cls.OPCODE_NAMES, opcode)
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# -----------------------------------------------------------------------------
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@HCI_Vendor_Event.event(
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fields=[
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('quality_report_id', 1),
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('packet_types', 1),
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('connection_handle', 2),
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('connection_role', {'size': 1, 'mapper': HCI_Constant.role_name}),
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('tx_power_level', -1),
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('rssi', -1),
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('snr', 1),
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('unused_afh_channel_count', 1),
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('afh_select_unideal_channel_count', 1),
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('lsto', 2),
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('connection_piconet_clock', 4),
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('retransmission_count', 4),
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('no_rx_count', 4),
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('nak_count', 4),
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('last_tx_ack_timestamp', 4),
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('flow_off_count', 4),
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('last_flow_on_timestamp', 4),
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('buffer_overflow_bytes', 4),
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('buffer_underflow_bytes', 4),
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('bdaddr', Address.parse_address),
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('cal_failed_item_count', 1),
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('tx_total_packets', 4),
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('tx_unacked_packets', 4),
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('tx_flushed_packets', 4),
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('tx_last_subevent_packets', 4),
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('crc_error_packets', 4),
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('rx_duplicate_packets', 4),
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('vendor_specific_parameters', '*'),
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]
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)
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class HCI_Bluetooth_Quality_Report_Event(HCI_Vendor_Event):
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# pylint: disable=line-too-long
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'''
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See https://source.android.com/docs/core/connect/bluetooth/hci_requirements#bluetooth-quality-report-sub-event
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'''
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