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duplicate_pin_override: Debugging tool to permit multiple use pins

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2021-06-13 22:52:57 -04:00
parent 4d559633e3
commit 7fd7853785
3 changed files with 41 additions and 3 deletions
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13
klippy/pins.py
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@ -205,6 +205,7 @@ class PrinterPins:
self.chips = {}
self.active_pins = {}
self.pin_resolvers = {}
self.allow_multi_use_pins = {}
def parse_pin(self, pin_desc, can_invert=False, can_pullup=False):
desc = pin_desc.strip()
pullup = invert = 0
@ -241,10 +242,12 @@ class PrinterPins:
share_name = "%s:%s" % (pin_params['chip_name'], pin)
if share_name in self.active_pins:
share_params = self.active_pins[share_name]
if share_type is None or share_type != share_params['share_type']:
if share_name in self.allow_multi_use_pins:
pass
elif share_type is None or share_type != share_params['share_type']:
raise error("pin %s used multiple times in config" % (pin,))
if (pin_params['invert'] != share_params['invert']
or pin_params['pullup'] != share_params['pullup']):
elif (pin_params['invert'] != share_params['invert']
or pin_params['pullup'] != share_params['pullup']):
raise error("Shared pin %s must have same polarity" % (pin,))
return share_params
pin_params['share_type'] = share_type
@ -268,6 +271,10 @@ class PrinterPins:
raise error("Duplicate chip name '%s'" % (chip_name,))
self.chips[chip_name] = chip
self.pin_resolvers[chip_name] = PinResolver()
def allow_multi_use_pin(self, pin_desc):
pin_params = self.parse_pin(pin_desc)
share_name = "%s:%s" % (pin_params['chip_name'], pin_params['pin'])
self.allow_multi_use_pins[share_name] = True
def add_printer_objects(config):
config.get_printer().add_object('pins', PrinterPins())