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qmk_firmware

custom branch of QMK firmware git clone https://anongit.hacktivis.me/git/qmk_firmware.git

mcp23018.h (1193B)

    

  1. /*
  2.  * Copyright 2020 Richard Titmuss (richard.titmuss@gmail.com)
  3.  *
  4.  * This program is free software: you can redistribute it and/or modify
  5.  * it under the terms of the GNU General Public License as published by
  6.  * the Free Software Foundation, either version 2 of the License, or
  7.  * (at your option) any later version.
  8.  *
  9.  * This program is distributed in the hope that it will be useful,
  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12.  * GNU General Public License for more details.
  13.  *
  14.  * You should have received a copy of the GNU General Public License
  15.  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16.  */
  18. #pragma once
  20. #include <stdbool.h>
  21. #include <stdint.h>
  23. #define IODIRA 0x00
  24. #define IODIRB 0x01
  25. #define GPPUA 0x0C
  26. #define GPPUB 0x0D
  27. #define GPIOA 0x12
  28. #define GPIOB 0x13
  30. typedef int16_t mcp23018_status_t;
  32. void              msp23018_init(void);
  33. bool              mcp23018_reset_required(void);
  34. mcp23018_status_t mcp23018_writeReg(uint8_t regaddr, const uint8_t* data, uint16_t length);
  35. mcp23018_status_t mcp23018_readReg(uint8_t regaddr, uint8_t* data, uint16_t length);