gergoplex.h (1219B)
- /* Copyright 2021 Jane Bernhardt
- *
- * 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 "quantum.h"
- #include "i2c_master.h"
- extern i2c_status_t mcp23018_status;
- #define I2C_TIMEOUT 1000
- #define XXX KC_NO
- // I2C aliases and register addresses (see "mcp23018.md")
- #define I2C_ADDR (0x20 << 1) // 0b0100000
- #define IODIRA 0x00 // i/o direction register
- #define IODIRB 0x01
- #define GPPUA 0x0C // GPIO pull-up resistor register
- #define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
- #define OLATA 0x14 // output latch register
- uint8_t init_mcp23018(void);