| 106 | |
| 107 | |
| 108 | class DigitalInOut: |
| 109 | def __init__(self, pin, kbd): |
| 110 | if pin < 0 or pin > 7: |
| 111 | raise ValueError('Only pins 0-7 supported right now') |
| 112 | |
| 113 | self._pin = pin |
| 114 | self._kbd = kbd |
| 115 | |
| 116 | def switch_to_output(self, value=False): |
| 117 | self.direction = digitalio.Direction.OUTPUT |
| 118 | self.value = value |
| 119 | |
| 120 | def switch_to_input(self, pull=None): |
| 121 | self.direction = digitalio.Direction.INPUT |
| 122 | self.pull = pull |
| 123 | |
| 124 | @property |
| 125 | def value(self): |
| 126 | return self._kbd._get_register_bit(_REG_GIO, self._pin) |
| 127 | |
| 128 | @value.setter |
| 129 | def value(self, value): |
| 130 | self._kbd._update_register_bit(_REG_GIO, self._pin, value) |
| 131 | |
| 132 | @property |
| 133 | def direction(self): |
| 134 | if self._kbd._get_register_bit(_REG_DIR, self._pin) == DIR_INPUT: |
| 135 | return digitalio.Direction.INPUT |
| 136 | |
| 137 | return digitalio.Direction.OUTPUT |
| 138 | |
| 139 | @direction.setter |
| 140 | def direction(self, value): |
| 141 | self._kbd._update_register_bit(_REG_DIR, self._pin, value == digitalio.Direction.INPUT) |
| 142 | |
| 143 | @property |
| 144 | def pull(self): |
| 145 | if self.direction == digitalio.Direction.OUTPUT: |
| 146 | raise AttributeError('Pull not used when direction is output') |
| 147 | |
| 148 | if self._kbd._get_register_bit(_REG_PUE, self._pin): |
| 149 | if self._kbd._get_register_bit(_REG_PUD, self._pin) == PUD_UP: |
| 150 | return digitalio.Pull.UP |
| 151 | |
| 152 | return digitalio.Pull.DOWN |
| 153 | |
| 154 | return None |
| 155 | |
| 156 | @pull.setter |
| 157 | def pull(self, value): |
| 158 | if self.direction == digitalio.Direction.OUTPUT: |
| 159 | raise AttributeError('Pull not used when direction is output') |
| 160 | |
| 161 | if value is None: |
| 162 | self._kbd._update_register_bit(_REG_PUE, self._pin, False) |
| 163 | else: |
| 164 | self._kbd._update_register_bit(_REG_PUD, self._pin, value == digitalio.Pull.UP) |
| 165 | self._kbd._update_register_bit(_REG_PUE, self._pin, True) |