blob: 3d8b5a6ead8c1aa476b963f0370a43caf9b42e4e (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
#pragma once
#include "quantum.h"
#include <stdint.h>
#include "i2c_master.h"
#include <util/delay.h>
#define MCP23017
#define MCP23017_A0 0
#define MCP23017_A1 0
#define MCP23017_A2 0
#define I2C_ADDR (0x20)
#define I2C_ADDR_WRITE ((I2C_ADDR << 1) | I2C_WRITE)
#define I2C_ADDR_READ ((I2C_ADDR << 1) | I2C_READ)
#define MCP23017_B0_IODIRA 0x00
#define MCP23017_B0_IODIRB 0x01
#define MCP23017_B0_IPOLA 0x02
#define MCP23017_B0_IPOLB 0x03
#define MCP23017_B0_GPINTENA 0x04
#define MCP23017_B0_GPINTENB 0x05
#define MCP23017_B0_DEFVALA 0x06
#define MCP23017_B0_DEFVALB 0x07
#define MCP23017_B0_INTCONA 0x08
#define MCP23017_B0_INTCONB 0x09
#define MCP23017_B0_IOCONA 0x0A
#define MCP23017_B0_IOCONB 0x0B
#define MCP23017_B0_GPPUA 0x0C
#define MCP23017_B0_GPPUB 0x0D
#define MCP23017_B0_INTFA 0x0E
#define MCP23017_B0_INTFB 0x0F
#define MCP23017_B0_INTCAPA 0x10
#define MCP23017_B0_INTCAPB 0x11
#define MCP23017_B0_GPIOA 0x12
#define MCP23017_B0_GPIOB 0x13
#define MCP23017_B0_OLATA 0x14
#define MCP23017_B0_OLATB 0x15
#define HOTDOX_I2C_TIMEOUT 100
typedef int16_t i2c_status_t;
void left_init(void);
void left_scan(void);
uint8_t left_read_cols(void);
uint8_t left_get_col(uint8_t col);
matrix_row_t left_read_row(void);
void left_unselect_rows(void);
void left_select_row(uint8_t row);
uint8_t init_mcp23017(void);
|
