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#ifndef DACTYL_H
#define DACTYL_H

#include "quantum.h"
#include <stdint.h>
#include <stdbool.h>
#include "i2cmaster.h"
#include <util/delay.h>

#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
#define CPU_16MHz       0x00

// I2C aliases and register addresses (see "mcp23018.md")
#define I2C_ADDR        0b0100000
#define I2C_ADDR_WRITE  ( (I2C_ADDR<<1) | I2C_WRITE )
#define I2C_ADDR_READ   ( (I2C_ADDR<<1) | I2C_READ  )
#define IODIRA          0x00            // i/o direction register
#define IODIRB          0x01
#define GPPUA           0x0C            // GPIO pull-up resistor register
#define GPPUB           0x0D
#define GPIOA           0x12            // general purpose i/o port register (write modifies OLAT)
#define GPIOB           0x13
#define OLATA           0x14            // output latch register
#define OLATB           0x15

extern uint8_t mcp23018_status;

void init_dactyl(void);
uint8_t init_mcp23018(void);

#define KEYMAP(                                                 \
                                                                \
    /* left hand, spatial positions */                          \
    k00,k01,k02,k03,k04,k05,                                    \
    k10,k11,k12,k13,k14,k15,                                    \
    k20,k21,k22,k23,k24,k25,                                    \
    k30,k31,k32,k33,k34,k35,                                    \
    k40,k41,k42,k43,k44,                                        \
                            k55,k50,                            \
                                k54,                            \
                        k53,k52,k51,                            \
                                                                \
    /* right hand, spatial positions */                         \
            k06,k07,k08,k09,k0A,k0B,                            \
            k16,k17,k18,k19,k1A,k1B,                            \
            k26,k27,k28,k29,k2A,k2B,                            \
            k36,k37,k38,k39,k3A,k3B,                            \
                k47,k48,k49,k4A,k4B,                            \
    k5B,k56,                                                    \
    k57,                                                        \
    k5A,k59,k58 )                                               \
                                                                \
   /* matrix positions */                                       \
   {                                                            \
    { k00, k10, k20,   k30, k40,   k50   }, \
    { k01, k11, k21,   k31, k41,   k51   }, \
    { k02, k12, k22,   k32, k42,   k52   }, \
    { k03, k13, k23,   k33, k43,   k53   }, \
    { k04, k14, k24,   k34, k44,   k54   }, \
    { k05, k15, k25,   k35, KC_NO, k55   }, \
                                            \
    { k06, k16, k26,   k36, KC_NO, k56   }, \
    { k07, k17, k27,   k37, k47,   k57   }, \
    { k08, k18, k28,   k38, k48,   k58   }, \
    { k09, k19, k29,   k39, k49,   k59   }, \
    { k0A, k1A, k2A,   k3A, k4A,   k5A   }, \
    { k0B, k1B, k2B,   k3B, k4B,   k5B   }  \
   }



#define LAYOUT_dactyl KEYMAP

#endif