71 lines
2.8 KiB
Python
71 lines
2.8 KiB
Python
# Code to configure miscellaneous chips
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#
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# Copyright (C) 2017 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import pins
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######################################################################
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# Statically configured output pins
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######################################################################
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class PrinterStaticDigitalOut:
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def __init__(self, printer, config):
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pin_list = [pin.strip() for pin in config.get('pins').split(',')]
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for pin_desc in pin_list:
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mcu_pin = pins.setup_pin(printer, 'digital_out', pin_desc)
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mcu_pin.setup_static()
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class PrinterStaticPWM:
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def __init__(self, printer, config):
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mcu_pwm = pins.setup_pin(printer, 'pwm', config.get('pin'))
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mcu_pwm.setup_max_duration(0.)
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hard_pwm = config.getint('hard_pwm', None, minval=1)
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if hard_pwm is None:
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mcu_pwm.setup_cycle_time(config.getfloat(
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'cycle_time', 0.100, above=0.))
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else:
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mcu_pwm.setup_hard_pwm(hard_pwm)
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scale = config.getfloat('scale', 1., above=0.)
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value = config.getfloat('value', minval=0., maxval=scale)
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mcu_pwm.setup_static_pwm(value / scale)
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######################################################################
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# AD5206 digipot
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######################################################################
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class ad5206:
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def __init__(self, printer, config):
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enable_pin_params = pins.get_printer_pins(printer).parse_pin_desc(
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config.get('enable_pin'))
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self.mcu = enable_pin_params['chip']
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self.pin = enable_pin_params['pin']
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self.mcu.add_config_object(self)
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scale = config.getfloat('scale', 1., above=0.)
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self.channels = [None] * 6
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for i in range(len(self.channels)):
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val = config.getfloat('channel_%d' % (i+1,), None,
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minval=0., maxval=scale)
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if val is not None:
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self.channels[i] = int(val * 256. / scale + .5)
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def build_config(self):
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for i, val in enumerate(self.channels):
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if val is not None:
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self.mcu.add_config_cmd(
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"send_spi_message pin=%s msg=%02x%02x" % (self.pin, i, val))
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######################################################################
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# Setup
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######################################################################
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def add_printer_objects(printer, config):
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for s in config.get_prefix_sections('static_digital_output '):
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printer.add_object(s.section, PrinterStaticDigitalOut(printer, s))
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for s in config.get_prefix_sections('static_pwm_output '):
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printer.add_object(s.section, PrinterStaticPWM(printer, s))
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for s in config.get_prefix_sections('ad5206 '):
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printer.add_object(s.section, ad5206(printer, s))
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