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2990cc14b8
...
138af0da7a
6
peer.py
6
peer.py
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@ -18,7 +18,7 @@
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import logging as log
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from typing import Any, Optional
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from typing import Any
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from construct import Const, Container, Int16ul
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from transport import Transport
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@ -63,11 +63,9 @@ class DbgMuxPeer:
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if msg_type != DbgMuxFrame.MsgType.Ack:
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self.tx_count += 1
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def recv(self) -> Optional[Container]:
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def recv(self) -> Container:
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frame: bytes = b''
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frame += self.io.read(2) # Magic
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if frame == b'':
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return None
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Const(b'\x42\x42').parse(frame[:2])
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frame += self.io.read(2) # Length
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length: int = Int16ul.parse(frame[2:])
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@ -169,8 +169,8 @@ group.add_argument('-p', '--serial-port', metavar='PORT', type=str, default='/de
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help='Serial port path (default %(default)s)')
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group.add_argument('--serial-baudrate', metavar='BAUDRATE', type=int, default=115200,
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help='Serial port speed (default %(default)s)')
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group.add_argument('--serial-timeout', metavar='TIMEOUT', type=float, default=0.5,
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help='Serial port read timeout (default %(default)s)')
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group.add_argument('--serial-timeout', metavar='TIMEOUT', type=int,
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help='Serial port timeout')
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log.basicConfig(
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format='[%(levelname)s] %(filename)s:%(lineno)d %(message)s', level=log.INFO)
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@ -30,19 +30,15 @@ class TransportIOError(Exception):
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class Transport(abc.ABC):
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''' Abstract transport layer for DebugMux '''
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@abc.abstractmethod
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def connect(self, opts: dict) -> None:
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''' Establish connection to the target and enter DebugMux mode '''
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@abc.abstractmethod
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def disconnect(self) -> None:
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''' Escape DebugMux mode and terminate connection with the target '''
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@abc.abstractmethod
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def write(self, data: bytes) -> int:
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''' Write the given data bytes '''
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@abc.abstractmethod
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def read(self, length: int = 0) -> bytes:
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''' Read the given number of bytes '''
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