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#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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import logging |
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logger = logging.getLogger(__name__) |
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logger.debug("%s loaded", __name__) |
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import RPi.GPIO as RPiGPIO # basic for GPIO control |
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from doorpi.keyboard.AbstractBaseClass import KeyboardAbstractBaseClass, HIGH_LEVEL, LOW_LEVEL |
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import doorpi |
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def get(**kwargs): return GPIO(**kwargs) |
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class GPIO(KeyboardAbstractBaseClass): |
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name = 'GPIO Keyboard' |
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def __init__(self, input_pins, output_pins, conf_pre, conf_post, keyboard_name, |
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bouncetime=200, polarity=0, pressed_on_key_down=True, *args, **kwargs): |
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logger.debug("__init__(input_pins = %s, output_pins = %s, bouncetime = %s, polarity = %s)", |
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input_pins, output_pins, bouncetime, polarity) |
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self.keyboard_name = keyboard_name |
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self._polarity = polarity |
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self._InputPins = map(int, input_pins) |
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self._OutputPins = map(int, output_pins) |
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self._pressed_on_key_down = pressed_on_key_down |
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RPiGPIO.setwarnings(False) |
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section_name = conf_pre+'keyboard'+conf_post |
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if doorpi.DoorPi().config.get(section_name, 'mode', "BOARD").upper() == "BOARD": |
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RPiGPIO.setmode(RPiGPIO.BOARD) |
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else: |
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RPiGPIO.setmode(RPiGPIO.BCM) |
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# issue 134 |
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pull_up_down = doorpi.DoorPi().config.get(section_name, 'pull_up_down', "PUD_OFF").upper() |
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if pull_up_down == "PUD_DOWN": |
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pull_up_down = RPiGPIO.PUD_DOWN |
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elif pull_up_down == "PUD_UP": |
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pull_up_down = RPiGPIO.PUD_UP |
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else: |
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pull_up_down = RPiGPIO.PUD_OFF |
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# issue #133 |
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try: |
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RPiGPIO.setup(self._InputPins, RPiGPIO.IN, pull_up_down=pull_up_down) |
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except TypeError: |
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logger.warning('you use an old version of GPIO library - fallback to single-register of input pins') |
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for input_pin in self._InputPins: |
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RPiGPIO.setup(input_pin, RPiGPIO.IN, pull_up_down=pull_up_down) |
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for input_pin in self._InputPins: |
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RPiGPIO.add_event_detect( |
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input_pin, |
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RPiGPIO.BOTH, |
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callback=self.event_detect, |
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bouncetime=int(bouncetime) |
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) |
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self._register_EVENTS_for_pin(input_pin, __name__) |
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# issue #133 |
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try: |
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RPiGPIO.setup(self._OutputPins, RPiGPIO.OUT) |
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except TypeError: |
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logger.warning('you use an old version of GPIO library - fallback to single-register of input pins') |
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for output_pin in self._OutputPins: |
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RPiGPIO.setup(output_pin, RPiGPIO.OUT) |
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# use set_output to register status @ dict self._OutputStatus |
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for output_pin in self._OutputPins: |
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self.set_output(output_pin, 0, False) |
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self.register_destroy_action() |
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def destroy(self): |
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if self.is_destroyed: |
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return |
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logger.debug("destroy") |
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# shutdown all output-pins |
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for output_pin in self._OutputPins: |
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self.set_output(output_pin, 0, False) |
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RPiGPIO.cleanup() |
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doorpi.DoorPi().event_handler.unregister_source(__name__, True) |
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self.__destroyed = True |
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def event_detect(self, pin): |
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if self.status_input(pin): |
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self._fire_OnKeyDown(pin, __name__) |
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if self._pressed_on_key_down: # issue 134 |
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self._fire_OnKeyPressed(pin, __name__) |
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else: |
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self._fire_OnKeyUp(pin, __name__) |
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if not self._pressed_on_key_down: # issue 134 |
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self._fire_OnKeyPressed(pin, __name__) |
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def status_input(self, pin): |
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if self._polarity is 0: |
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return str(RPiGPIO.input(int(pin))).lower() in HIGH_LEVEL |
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else: |
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return str(RPiGPIO.input(int(pin))).lower() in LOW_LEVEL |
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def set_output(self, pin, value, log_output=True): |
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parsed_pin = doorpi.DoorPi().parse_string("!"+str(pin)+"!") |
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if parsed_pin != "!"+str(pin)+"!": |
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pin = parsed_pin |
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pin = int(pin) |
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value = str(value).lower() in HIGH_LEVEL |
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if self._polarity is 1: |
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value = not value |
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log_output = str(log_output).lower() in HIGH_LEVEL |
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if pin not in self._OutputPins: |
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return False |
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if log_output: |
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logger.debug("out(pin = %s, value = %s, log_output = %s)", pin, value, log_output) |
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RPiGPIO.output(pin, value) |
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self._OutputStatus[pin] = value |
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return True |
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motom001 /
DoorPi
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