- #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);
-
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