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Squashed commits: [cd479ba] formatting and linting automation [7fbfabb] formatting and linting automation [c4f9505] fix after rebase [f506ad4] rename job [441d517] update doc (+7 squashed commits) [2e1b416] fix invoke and github action [6ae5bb4] doc for git blame [44b5461] add GitHub action [b07474f] add docs [4cd9a6f] more linter fixes [db71901] wip [540dc88] wip
95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
# Copyright 2021-2022 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 logging
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import asyncio
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import collections
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from colors import color
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# -----------------------------------------------------------------------------
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# Logging
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# -----------------------------------------------------------------------------
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logger = logging.getLogger(__name__)
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# -----------------------------------------------------------------------------
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# Protocol Support
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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class HfpProtocol:
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def __init__(self, dlc):
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self.dlc = dlc
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self.buffer = ''
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self.lines = collections.deque()
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self.lines_available = asyncio.Event()
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dlc.sink = self.feed
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def feed(self, data):
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# Convert the data to a string if needed
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if isinstance(data, bytes):
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data = data.decode('utf-8')
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logger.debug(f'<<< Data received: {data}')
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# Add to the buffer and look for lines
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self.buffer += data
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while (separator := self.buffer.find('\r')) >= 0:
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line = self.buffer[:separator].strip()
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self.buffer = self.buffer[separator + 1 :]
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if len(line) > 0:
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self.on_line(line)
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def on_line(self, line):
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self.lines.append(line)
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self.lines_available.set()
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def send_command_line(self, line):
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logger.debug(color(f'>>> {line}', 'yellow'))
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self.dlc.write(line + '\r')
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def send_response_line(self, line):
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logger.debug(color(f'>>> {line}', 'yellow'))
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self.dlc.write('\r\n' + line + '\r\n')
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async def next_line(self):
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await self.lines_available.wait()
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line = self.lines.popleft()
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if not self.lines:
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self.lines_available.clear()
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logger.debug(color(f'<<< {line}', 'green'))
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return line
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async def initialize_service(self):
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# Perform Service Level Connection Initialization
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self.send_command_line('AT+BRSF=2072') # Retrieve Supported Features
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await (self.next_line())
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await (self.next_line())
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self.send_command_line('AT+CIND=?')
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await (self.next_line())
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await (self.next_line())
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self.send_command_line('AT+CIND?')
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await (self.next_line())
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await (self.next_line())
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self.send_command_line('AT+CMER=3,0,0,1')
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await (self.next_line())
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