Unify bit timings with separate class for CAN FD (#1468)

* rework bit timings

* fix pylint

* convert config values to int

* simplify instantiation from sample point

* add docstrings

* update bit timing docs and tests

* fix wrong info

* remove links

* adapt CANalystIIBus

* adapt CantactBus

* try to set correct f_clock before raising exception

* improve bit timing docs

* turn `oscillator_tolerance` into function, improve `from_sample_point`

* add tests

* cleanup

* Remove BitTimingFd

Co-authored-by: Lukas Magel <[email protected]>

* Update can/interfaces/cantact.py

Co-authored-by: Lukas Magel <[email protected]>

* Add test_btr_persistence suggestion

Co-authored-by: Lukas Magel <[email protected]>

* Format code with black

* move imports up

* undo type hint change

* mention dict conversion in docs

* change member order for docs

* use bitrate prescaler as ground truth

* avoid repetition

* Add utility method to validate and adjust the timing clock value

* Fix ZeroDivisionError

* improve tests and docs

* add deprecation period

* check if "timing" already exists

* add bit timing figure to docs

Co-authored-by: zariiii9003 <[email protected]>
Co-authored-by: Lukas Magel <[email protected]>
Co-authored-by: Lukas Magel <[email protected]>

Author: zariiii9003

can/__init__.py

@@ -33,7 +33,7 @@
 from .interfaces import VALID_INTERFACES
 from . import interface
 from .interface import Bus, detect_available_configs
-from .bit_timing import BitTiming
+from .bit_timing import BitTiming, BitTimingFd
 
 from .io import Logger, SizedRotatingLogger, Printer, LogReader, MessageSync
 from .io import ASCWriter, ASCReader