src/adafruit_blinka/microcontroller/fake_mcp2221/i2c.py

   1 # SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
   2 #
   3 # SPDX-License-Identifier: MIT
   4 """I2C Class for MCP2221"""
   5 from .fake_mcp2221 import mcp2221
   6
   7
   8 class I2C:
   9     """Custom I2C Class for MCP2221"""
  10
  11     def __init__(self, *, frequency=100000):
  12         self._mcp2221 = mcp2221
  13         # self._mcp2221._i2c_configure(frequency)
  14
  15     def scan(self):
  16         """Perform an I2C Device Scan"""
  17         # TODO: We need to fake an I2C scan here
  18         return self._mcp2221.i2c_scan()
  19
  20     # pylint: disable=unused-argument
  21     def writeto(self, address, buffer, *, start=0, end=None, stop=True):
  22         """Write data from the buffer to an address"""
  23         #self._mcp2221.i2c_writeto(address, buffer, start=start, end=end)
  24
  25     def readfrom_into(self, address, buffer, *, start=0, end=None, stop=True):
  26         """Read data from an address and into the buffer"""
  27         #self._mcp2221.i2c_readfrom_into(address, buffer, start=start, end=end)
  28
  29     def writeto_then_readfrom(
  30         self,
  31         address,
  32         buffer_out,
  33         buffer_in,
  34         *,
  35         out_start=0,
  36         out_end=None,
  37         in_start=0,
  38         in_end=None,
  39         stop=False,
  40     ):
  41         """Write data from buffer_out to an address and then
  42         read data from an address and into buffer_in
  43         """
  44
  45         """
  46         self._mcp2221.i2c_writeto_then_readfrom(
  47             address,
  48             buffer_out,
  49             buffer_in,
  50             out_start=out_start,
  51             out_end=out_end,
  52             in_start=in_start,
  53             in_end=in_end,
  54         )
  55         """
  56
  57     # pylint: enable=unused-argument