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56 lines
2.1 KiB
Python
56 lines
2.1 KiB
Python
"""Experimental RFCOMM/serial adapter for the shared Samsung session."""
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import queue
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import time
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from controller.session import Session
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from controller.transport import open_stream
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from controller.worker import ConnectionWorker
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class Link(ConnectionWorker):
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def __init__(self, port, events, channel=1, prepare=False):
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super().__init__(port, events)
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self.channel = channel
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self.prepare = prepare
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def work(self):
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self.events.put(("log", f"Opening {self.port} (direct RFCOMM uses channel {self.channel})"))
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def report(text):
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self.events.put(("status", text))
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self.events.put(("log", text))
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with open_stream(self.port, self.channel, self.prepare, report) as stream:
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session = Session(strict_checksums=True)
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def send(packet):
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if stream.write(packet) != len(packet):
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raise OSError("Incomplete Bluetooth write")
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self.events.put(("log", "TX " + packet.hex(" ")))
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report("Bluetooth connected; waiting for speaker handshake…")
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send(session.start())
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deadline = time.monotonic() + 10
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last_sent = time.monotonic()
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while not self.stopped.is_set():
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chunk = stream.read(1024)
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if chunk:
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self.events.put(("log", "RX " + chunk.hex(" ")))
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update = session.receive(chunk)
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self.publish(update)
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for packet in update.outgoing:
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send(packet)
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last_sent = time.monotonic()
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if not session.ready and time.monotonic() > deadline:
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raise TimeoutError(
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"No completed speaker handshake. Close the phone app and check the TX/RX log."
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)
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if session.ready and time.monotonic() - last_sent >= 0.1:
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try:
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payload = self.commands.get_nowait()
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except queue.Empty:
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continue
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send(session.command(payload))
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last_sent = time.monotonic()
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