145 lines
4.5 KiB
Python
145 lines
4.5 KiB
Python
import board
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import digitalio
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from kmk.extensions import Extension
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from kmk.handlers.stock import passthrough as handler_passthrough
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from kmk.keys import make_key
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from kmk.kmktime import sleep_ms, ticks_diff, ticks_ms
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class Power(Extension):
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def __init__(self, powersave_pin=None, enable=False, is_target=True):
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self.enable = enable
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self.powersave_pin = powersave_pin # Powersave pin board object
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self.is_target = is_target
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self._powersave_start = ticks_ms()
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self._usb_last_scan = ticks_ms() - 5000
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self._psp = None # Powersave pin object
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self._i2c = None
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make_key(
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names=('PS_TOG',), on_press=self._ps_tog, on_release=handler_passthrough
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)
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make_key(
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names=('PS_ENB',), on_press=self._ps_enable, on_release=handler_passthrough
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)
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make_key(
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names=('PS_DIS',), on_press=self._ps_disable, on_release=handler_passthrough
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)
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def __repr__(self):
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return f'Power({self._to_dict()})'
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def _to_dict(self):
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return f'''Power(
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enable={self.enable}
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powersave_pin={self.powersave_pin}
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is_target={self.is_target}
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_powersave_start={self._powersave_start}
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_usb_last_scan={self._usb_last_scan}
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_psp={self._psp} )
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'''
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def on_runtime_enable(self, keyboard):
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return
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def on_runtime_disable(self, keyboard):
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self.disable_powersave
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def during_bootup(self, keyboard):
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self._detect_i2c()
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self.enable = not bool(self.usb_scan)
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def before_matrix_scan(self, keyboard):
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if self.usb_rescan_timer():
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self.enable = not bool(self.usb_scan)
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def after_matrix_scan(self, keyboard, matrix_update):
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if matrix_update:
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self.psave_time_reset()
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else:
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self.psleep()
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def before_hid_send(self, keyboard):
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return
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def after_hid_send(self, keyboard):
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return
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def enable_powersave(self):
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'''Enables power saving features'''
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print('Psave True')
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if self.powersave_pin:
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# Allows power save to prevent RGB drain.
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# Example here https://docs.nicekeyboards.com/#/nice!nano/pinout_schematic
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if not self._psp:
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self._psp = digitalio.DigitalInOut(self.powersave_pin)
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self._psp.direction = digitalio.Direction.OUTPUT
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self._psp.value = True
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self.enable = True
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def disable_powersave(self):
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'''Disables power saving features'''
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print('Psave False')
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if self.powersave_pin:
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# Allows power save to prevent RGB drain.
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# Example here https://docs.nicekeyboards.com/#/nice!nano/pinout_schematic
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if not self._psp:
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self._psp = digitalio.DigitalInOut(self.powersave_pin)
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self._psp.direction = digitalio.Direction.OUTPUT
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self._psp.value = False
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self.enable = False
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def psleep(self):
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'''
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Sleeps longer and longer to save power the more time in between updates.
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'''
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if ticks_diff(ticks_ms(), self._powersave_start) <= 20000 and self.is_target:
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sleep_ms(1)
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elif ticks_diff(ticks_ms(), self._powersave_start) <= 40000 and self.is_target:
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sleep_ms(4)
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elif ticks_diff(ticks_ms(), self._powersave_start) <= 60000 and self.is_target:
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sleep_ms(8)
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elif ticks_diff(ticks_ms(), self._powersave_start) >= 240000:
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sleep_ms(250)
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def psave_time_reset(self):
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self._powersave_start = ticks_ms()
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def usb_rescan_timer(self):
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return bool(ticks_diff(ticks_ms(), self._usb_last_scan) > 5000)
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def usb_time_reset(self):
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self._usb_last_scan = ticks_ms()
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def usb_scan(self):
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# TODO Add USB detection here. Currently lies that it's connected
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# https://github.com/adafruit/circuitpython/pull/3513
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return True
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def _detect_i2c(self):
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'''Detects i2c devices and disables cutting power to them'''
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# TODO Figure out how this could deinit/reinit instead.
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self._i2c = board.I2C()
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devices = self._i2c.scan()
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if devices != []:
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self.powersave_pin = None
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def _ps_tog(self):
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if self.enable:
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self.enable_powersave()
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else:
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self.disable_powersave()
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def _ps_enable(self):
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if not self.enable:
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self.enable_powersave()
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def _ps_disable(self):
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if self.enable:
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self.disable_powersave()
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