/* Copyright 2020 zvecr<git@zvecr.com> * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #pragma once #include <stdint.h> #include <stdbool.h> #define mcp23018_PORTA 0 #define mcp23018_PORTB 1 #define ALL_OUTPUT 0 #define ALL_INPUT 0xFF #define ALL_LOW 0 #define ALL_HIGH 0xFF void mcp23018_init(uint8_t addr); bool mcp23018_set_config(uint8_t slave_addr, uint8_t port, uint8_t conf); bool mcp23018_set_output(uint8_t slave_addr, uint8_t port, uint8_t conf); bool mcp23018_set_output_all(uint8_t slave_addr, uint8_t confA, uint8_t confB); bool mcp23018_readPins(uint8_t slave_addraddr, uint8_t port, uint8_t* ret); bool mcp23018_readPins_all(uint8_t slave_addr, uint16_t* ret);