# The MIT License (MIT)
#
# Copyright (c) 2020 Melissa LeBlanc-Williams for Adafruit Industries
#
# 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.

"""
`displayio.parallelbus`
================================================================================

displayio for Blinka

**Software and Dependencies:**

* Adafruit Blinka:
  https://github.com/adafruit/Adafruit_Blinka/releases

* Author(s): Melissa LeBlanc-Williams

"""

__version__ = "0.0.0-auto.0"
__repo__ = "https://github.com/adafruit/Adafruit_Blinka_displayio.git"

# pylint: disable=unnecessary-pass, unused-argument


class ParallelBus:
    """Manage updating a display over 8-bit parallel bus in the background while Python code
    runs. This protocol may be refered to as 8080-I Series Parallel Interface in datasheets.
    It doesn’t handle display initialization.
    """

    def __init__(self, i2c_bus, *, device_address, reset=None):
        """Create a ParallelBus object associated with the given pins. The
        bus is inferred from data0 by implying the next 7 additional pins on a given GPIO
        port.

        The parallel bus and pins are then in use by the display until
        displayio.release_displays() is called even after a reload. (It does this so
        CircuitPython can use the display after your code is done.) So, the first time you
        initialize a display bus in code.py you should call
        :py:func`displayio.release_displays` first, otherwise it will error after the first
        code.py run.
        """
        pass

    def reset(self):
        """Performs a hardware reset via the reset pin. Raises an exception if called when
        no reset pin is available.
        """
        pass

    def send(self, command, data):
        """Sends the given command value followed by the full set of data. Display state,
        such as vertical scroll, set via ``send`` may or may not be reset once the code is
        done.
        """
        pass