mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-25 10:59:54 +00:00
49 lines
1.0 KiB
C
49 lines
1.0 KiB
C
|
#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
|