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