55 lines
2 KiB
C
55 lines
2 KiB
C
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#pragma once
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#include "quantum.h"
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#include <stdint.h>
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#include <stdbool.h>
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#include "i2c_master.h"
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#include <util/delay.h>
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extern i2c_status_t mcp23018_status;
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#define I2C_TIMEOUT 1000
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#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
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#define CPU_16MHz 0x00
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// I2C aliases and register addresses (see "mcp23018.md")
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//#define I2C_ADDR 0b0100000
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#define I2C_ADDR 0x20
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#define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE )
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#define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ )
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#define IODIRA 0x00 // i/o direction register
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#define IODIRB 0x01
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#define GPPUA 0x0C // GPIO pull-up resistor register
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#define GPPUB 0x0D
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#define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
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#define GPIOB 0x13
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#define OLATA 0x14 // output latch register
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#define OLATB 0x15
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uint8_t init_mcp23018(void);
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/* ---------- LEFT HAND ----------- ---------- RIGHT HAND ---------- */
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#define LAYOUT_gergo( \
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L00,L01,L02,L03,L04,L05, R00,R01,R02,R03,R04,R05, \
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L10,L11,L12,L13,L14,L15,L16, R10,R11,R12,R13,R14,R15,R16, \
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L20,L21,L22,L23,L24,L25,L26,L30, R30,R20,R21,R22,R23,R24,R25,R26, \
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L31,L32,L33,L34, R31,R32,R33,R34) \
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/* matrix positions */ \
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{ \
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{ KC_NO, L16, L26, L30}, \
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{ L05, L15, L25, L34}, \
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{ L04, L14, L24, L33}, \
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{ L03, L13, L23, L32}, \
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{ L02, L12, L22, L31}, \
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{ L01, L11, L21, KC_NO}, \
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{ L00, L10, L20, KC_NO}, \
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\
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{ KC_NO, R10, R20, R30}, \
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{ R00, R11, R21, R31}, \
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{ R01, R12, R22, R32}, \
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{ R02, R13, R23, R33}, \
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{ R03, R14, R24, R34}, \
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{ R04, R15, R25, KC_NO}, \
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{ R05, R16, R26, KC_NO}, \
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}
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