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eSCO support
This commit is contained in:
Josh Wu
168
bumble/hfp.py
168
bumble/hfp.py
@@ -35,6 +35,7 @@ from bumble.core import (
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BT_L2CAP_PROTOCOL_ID,
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BT_RFCOMM_PROTOCOL_ID,
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)
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from bumble.hci import HCI_Enhanced_Setup_Synchronous_Connection_Command
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from bumble.sdp import (
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DataElement,
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ServiceAttribute,
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@@ -819,3 +820,170 @@ def sdp_records(
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DataElement.unsigned_integer_16(hf_supported_features),
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),
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]
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# -----------------------------------------------------------------------------
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# ESCO Codec Default Parameters
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# -----------------------------------------------------------------------------
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# Hands-Free Profile v1.8, 5.7 Codec Interoperability Requirements
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class DefaultCodecParameters(enum.IntEnum):
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SCO_CVSD_D0 = enum.auto()
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SCO_CVSD_D1 = enum.auto()
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ESCO_CVSD_S1 = enum.auto()
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ESCO_CVSD_S2 = enum.auto()
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ESCO_CVSD_S3 = enum.auto()
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ESCO_CVSD_S4 = enum.auto()
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ESCO_MSBC_T1 = enum.auto()
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ESCO_MSBC_T2 = enum.auto()
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@dataclasses.dataclass
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class EscoParameters:
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# Codec specific
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transmit_coding_format: HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat
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receive_coding_format: HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat
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packet_type: HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType
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retransmission_effort: HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort
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max_latency: int
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# Common
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input_coding_format: HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat = (
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HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.TRANSPARENT
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)
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output_coding_format: HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat = (
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HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.TRANSPARENT
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)
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input_coded_data_size: int = 16
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output_coded_data_size: int = 16
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input_pcm_data_format: HCI_Enhanced_Setup_Synchronous_Connection_Command.PcmDataFormat = (
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PcmDataFormat.TWOS_COMPLEMENT
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)
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output_pcm_data_format: HCI_Enhanced_Setup_Synchronous_Connection_Command.PcmDataFormat = (
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PcmDataFormat.TWOS_COMPLEMENT
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)
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input_pcm_sample_payload_msb_position: int = 0
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output_pcm_sample_payload_msb_position: int = 0
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input_data_path: HCI_Enhanced_Setup_Synchronous_Connection_Command.DataPath = (
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HCI_Enhanced_Setup_Synchronous_Connection_Command.DataPath.HCI
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)
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output_data_path: HCI_Enhanced_Setup_Synchronous_Connection_Command.DataPath = (
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HCI_Enhanced_Setup_Synchronous_Connection_Command.DataPath.HCI
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)
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input_transport_unit_size: int = 0
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output_transport_unit_size: int = 0
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input_bandwidth: int = 16000
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output_bandwidth: int = 16000
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transmit_bandwidth: int = 8000
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receive_bandwidth: int = 8000
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transmit_codec_frame_size: int = 60
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receive_codec_frame_size: int = 60
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_ESCO_PARAMETERS_CVSD_D0 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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max_latency=0xFFFF,
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packet_type=HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.HV1,
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.NO_RETRANSMISSION,
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)
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_ESCO_PARAMETERS_CVSD_D1 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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max_latency=0xFFFF,
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packet_type=HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.HV3,
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.NO_RETRANSMISSION,
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)
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_ESCO_PARAMETERS_CVSD_S1 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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max_latency=0x0007,
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packet_type=(
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV5
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV5
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),
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.OPTIMIZE_FOR_POWER,
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)
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_ESCO_PARAMETERS_CVSD_S2 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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max_latency=0x0007,
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packet_type=(
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV5
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV5
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),
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.OPTIMIZE_FOR_POWER,
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)
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_ESCO_PARAMETERS_CVSD_S3 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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max_latency=0x000A,
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packet_type=(
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV5
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV5
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),
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.OPTIMIZE_FOR_POWER,
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)
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_ESCO_PARAMETERS_CVSD_S4 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.CVSD,
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max_latency=0x000C,
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packet_type=(
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV5
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV5
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),
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.OPTIMIZE_FOR_QUALITY,
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)
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_ESCO_PARAMETERS_MSBC_T1 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.MSBC,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.MSBC,
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max_latency=0x0008,
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packet_type=(
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV5
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV5
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),
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.OPTIMIZE_FOR_QUALITY,
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)
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_ESCO_PARAMETERS_MSBC_T2 = EscoParameters(
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transmit_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.MSBC,
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receive_coding_format=HCI_Enhanced_Setup_Synchronous_Connection_Command.CodingFormat.MSBC,
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max_latency=0x000D,
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packet_type=(
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HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV3
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_2_EV5
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| HCI_Enhanced_Setup_Synchronous_Connection_Command.PacketType.NO_3_EV5
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),
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retransmission_effort=HCI_Enhanced_Setup_Synchronous_Connection_Command.RetransmissionEffort.OPTIMIZE_FOR_QUALITY,
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)
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ESCO_PERAMETERS = {
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DefaultCodecParameters.SCO_CVSD_D0: _ESCO_PARAMETERS_CVSD_D0,
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DefaultCodecParameters.SCO_CVSD_D1: _ESCO_PARAMETERS_CVSD_D1,
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DefaultCodecParameters.ESCO_CVSD_S1: _ESCO_PARAMETERS_CVSD_S1,
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DefaultCodecParameters.ESCO_CVSD_S2: _ESCO_PARAMETERS_CVSD_S2,
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DefaultCodecParameters.ESCO_CVSD_S3: _ESCO_PARAMETERS_CVSD_S3,
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DefaultCodecParameters.ESCO_CVSD_S4: _ESCO_PARAMETERS_CVSD_S4,
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DefaultCodecParameters.ESCO_MSBC_T1: _ESCO_PARAMETERS_MSBC_T1,
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DefaultCodecParameters.ESCO_MSBC_T2: _ESCO_PARAMETERS_MSBC_T2,
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}
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