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tmk_keyboard_custom/keyboard/ergodone/expander.h
2016-08-25 18:27:47 +09:00

66 lines
1.7 KiB
C

/*
Copyright 2016 Kai Ryu <kai1103@gmail.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/>.
*/
#ifndef EXPANDER_H
#define EXPANDER_H
#include <stdint.h>
#include "matrix.h"
#define MCP23017
#define MCP23017_A0 0
#define MCP23017_A1 0
#define MCP23017_A2 0
#ifdef MCP23017
#define EXPANDER_ADDR ((0x20|(MCP23017_A0<<0)|(MCP23017_A1<<1)|(MCP23017_A2<<2)) << 1)
enum EXPANDER_REG_BANK0 {
EXPANDER_REG_IODIRA = 0,
EXPANDER_REG_IODIRB,
EXPANDER_REG_IPOLA,
EXPANDER_REG_IPOLB,
EXPANDER_REG_GPINTENA,
EXPANDER_REG_GPINTENB,
EXPANDER_REG_DEFVALA,
EXPANDER_REG_DEFVALB,
EXPANDER_REG_INTCONA,
EXPANDER_REG_INTCONB,
EXPANDER_REG_IOCONA,
EXPANDER_REG_IOCONB,
EXPANDER_REG_GPPUA,
EXPANDER_REG_GPPUB,
EXPANDER_REG_INTFA,
EXPANDER_REG_INTFB,
EXPANDER_REG_INTCAPA,
EXPANDER_REG_INTCAPB,
EXPANDER_REG_GPIOA,
EXPANDER_REG_GPIOB,
EXPANDER_REG_OLATA,
EXPANDER_REG_OLATB
};
#endif
void expander_init(void);
void expander_scan(void);
void expander_read_cols(void);
uint8_t expander_get_col(uint8_t col);
matrix_row_t expander_read_row(void);
void expander_unselect_rows(void);
void expander_select_row(uint8_t row);
#endif