83 lines
2.3 KiB
Python
83 lines
2.3 KiB
Python
import logging
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import pykka
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from mopidy import core
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logger = logging.getLogger(__name__)
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class RaspberryGPIOFrontend(pykka.ThreadingActor, core.CoreListener):
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def __init__(self, config, core):
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super().__init__()
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import RPi.GPIO as GPIO
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self.core = core
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self.config = config["raspberry-gpio"]
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self.pin_settings = {}
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GPIO.setwarnings(False)
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GPIO.setmode(GPIO.BCM)
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# Iterate through any bcmN pins in the config
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# and set them up as inputs with edge detection
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for key in self.config:
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if key.startswith("bcm"):
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pin = int(key.replace("bcm", ""))
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settings = self.config[key]
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if settings is None:
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continue
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pull = GPIO.PUD_UP
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edge = GPIO.FALLING
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if settings.active == "active_high":
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pull = GPIO.PUD_DOWN
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edge = GPIO.RISING
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GPIO.setup(pin, GPIO.IN, pull_up_down=pull)
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GPIO.add_event_detect(
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pin,
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edge,
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callback=self.gpio_event,
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bouncetime=settings.bouncetime,
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)
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self.pin_settings[pin] = settings
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def gpio_event(self, pin):
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settings = self.pin_settings[pin]
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self.dispatch_input(settings.event)
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def dispatch_input(self, event):
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handler_name = f"handle_{event}"
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try:
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getattr(self, handler_name)()
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except AttributeError:
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raise RuntimeError(
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f"Could not find input handler for event: {event}"
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)
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def handle_play_pause(self):
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if self.core.playback.get_state().get() == core.PlaybackState.PLAYING:
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self.core.playback.pause()
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else:
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self.core.playback.play()
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def handle_next(self):
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self.core.playback.next()
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def handle_prev(self):
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self.core.playback.previous()
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def handle_volume_up(self):
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volume = self.core.mixer.get_volume().get()
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volume += 5
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volume = min(volume, 100)
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self.core.mixer.set_volume(volume)
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def handle_volume_down(self):
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volume = self.core.mixer.get_volume().get()
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volume -= 5
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volume = max(volume, 0)
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self.core.mixer.set_volume(volume)
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