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authorCody Hiar <codyfh@gmail.com>2018-05-27 15:29:21 -0600
committerCody Hiar <codyfh@gmail.com>2018-05-27 15:29:21 -0600
commitceec171c42bd79f1762b971569e20ead656f4fd0 (patch)
tree1880be0b1cef9786be5bc818cbd50095cd797a6d /Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py
parent611a8b7be4331e4f8416c4d10a0be47a109b47e4 (diff)
Moving libs into separate own directory
Diffstat (limited to 'Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py')
-rw-r--r--Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py165
1 files changed, 0 insertions, 165 deletions
diff --git a/Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py b/Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py
deleted file mode 100644
index 3ba8b5f..0000000
--- a/Adafruit_Python_GPIO/Adafruit_GPIO/MCP230xx.py
+++ /dev/null
@@ -1,165 +0,0 @@
-# Copyright (c) 2014 Adafruit Industries
-# Author: Tony DiCola
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-import math
-
-import Adafruit_GPIO as GPIO
-import Adafruit_GPIO.I2C as I2C
-
-
-class MCP230xxBase(GPIO.BaseGPIO):
- """Base class to represent an MCP230xx series GPIO extender. Is compatible
- with the Adafruit_GPIO BaseGPIO class so it can be used as a custom GPIO
- class for interacting with device.
- """
-
- def __init__(self, address, i2c=None, **kwargs):
- """Initialize MCP230xx at specified I2C address and bus number. If bus
- is not specified it will default to the appropriate platform detected bus.
- """
- # Create I2C device.
- if i2c is None:
- import Adafruit_GPIO.I2C as I2C
- i2c = I2C
- self._device = i2c.get_i2c_device(address, **kwargs)
- # Assume starting in ICON.BANK = 0 mode (sequential access).
- # Compute how many bytes are needed to store count of GPIO.
- self.gpio_bytes = int(math.ceil(self.NUM_GPIO/8.0))
- # Buffer register values so they can be changed without reading.
- self.iodir = [0xFF]*self.gpio_bytes # Default direction to all inputs.
- self.gppu = [0x00]*self.gpio_bytes # Default to pullups disabled.
- self.gpio = [0x00]*self.gpio_bytes
- # Write current direction and pullup buffer state.
- self.write_iodir()
- self.write_gppu()
-
-
- def setup(self, pin, value):
- """Set the input or output mode for a specified pin. Mode should be
- either GPIO.OUT or GPIO.IN.
- """
- self._validate_pin(pin)
- # Set bit to 1 for input or 0 for output.
- if value == GPIO.IN:
- self.iodir[int(pin/8)] |= 1 << (int(pin%8))
- elif value == GPIO.OUT:
- self.iodir[int(pin/8)] &= ~(1 << (int(pin%8)))
- else:
- raise ValueError('Unexpected value. Must be GPIO.IN or GPIO.OUT.')
- self.write_iodir()
-
-
- def output(self, pin, value):
- """Set the specified pin the provided high/low value. Value should be
- either GPIO.HIGH/GPIO.LOW or a boolean (True = HIGH).
- """
- self.output_pins({pin: value})
-
- def output_pins(self, pins):
- """Set multiple pins high or low at once. Pins should be a dict of pin
- name to pin value (HIGH/True for 1, LOW/False for 0). All provided pins
- will be set to the given values.
- """
- [self._validate_pin(pin) for pin in pins.keys()]
- # Set each changed pin's bit.
- for pin, value in iter(pins.items()):
- if value:
- self.gpio[int(pin/8)] |= 1 << (int(pin%8))
- else:
- self.gpio[int(pin/8)] &= ~(1 << (int(pin%8)))
- # Write GPIO state.
- self.write_gpio()
-
-
- def input(self, pin):
- """Read the specified pin and return GPIO.HIGH/True if the pin is pulled
- high, or GPIO.LOW/False if pulled low.
- """
- return self.input_pins([pin])[0]
-
- def input_pins(self, pins):
- """Read multiple pins specified in the given list and return list of pin values
- GPIO.HIGH/True if the pin is pulled high, or GPIO.LOW/False if pulled low.
- """
- [self._validate_pin(pin) for pin in pins]
- # Get GPIO state.
- self.gpio = self._device.readList(self.GPIO, self.gpio_bytes)
- # Return True if pin's bit is set.
- return [(self.gpio[int(pin/8)] & 1 << (int(pin%8))) > 0 for pin in pins]
-
-
- def pullup(self, pin, enabled):
- """Turn on the pull-up resistor for the specified pin if enabled is True,
- otherwise turn off the pull-up resistor.
- """
- self._validate_pin(pin)
- if enabled:
- self.gppu[int(pin/8)] |= 1 << (int(pin%8))
- else:
- self.gppu[int(pin/8)] &= ~(1 << (int(pin%8)))
- self.write_gppu()
-
- def write_gpio(self, gpio=None):
- """Write the specified byte value to the GPIO registor. If no value
- specified the current buffered value will be written.
- """
- if gpio is not None:
- self.gpio = gpio
- self._device.writeList(self.GPIO, self.gpio)
-
- def write_iodir(self, iodir=None):
- """Write the specified byte value to the IODIR registor. If no value
- specified the current buffered value will be written.
- """
- if iodir is not None:
- self.iodir = iodir
- self._device.writeList(self.IODIR, self.iodir)
-
- def write_gppu(self, gppu=None):
- """Write the specified byte value to the GPPU registor. If no value
- specified the current buffered value will be written.
- """
- if gppu is not None:
- self.gppu = gppu
- self._device.writeList(self.GPPU, self.gppu)
-
-
-class MCP23017(MCP230xxBase):
- """MCP23017-based GPIO class with 16 GPIO pins."""
- # Define number of pins and registor addresses.
- NUM_GPIO = 16
- IODIR = 0x00
- GPIO = 0x12
- GPPU = 0x0C
-
- def __init__(self, address=0x20, **kwargs):
- super(MCP23017, self).__init__(address, **kwargs)
-
-
-class MCP23008(MCP230xxBase):
- """MCP23008-based GPIO class with 8 GPIO pins."""
- # Define number of pins and registor addresses.
- NUM_GPIO = 8
- IODIR = 0x00
- GPIO = 0x09
- GPPU = 0x06
-
- def __init__(self, address=0x20, **kwargs):
- super(MCP23008, self).__init__(address, **kwargs)