8 #include <util/delay.h>
10 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
11 #define CPU_16MHz 0x00
13 #define I2C_ADDR 0b0100000
14 #define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE )
15 #define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ )
16 #define IODIRA 0x00 // i/o direction register
18 #define GPPUA 0x0C // GPIO pull-up resistor register
20 #define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
22 #define OLATA 0x14 // output latch register
25 extern uint8_t expander_status;
26 extern uint8_t expander_input_pin_mask;
27 extern bool i2c_initialized;
29 void init_dactyl(void);
30 void init_expander(void);
33 * LEFT HAND: LINES 38-45
34 * RIGHT HAND: LINES 47-54
36 #define LAYOUT_dactyl( \
38 k00,k01,k02,k03,k04,k05, \
39 k10,k11,k12,k13,k14,k15, \
40 k20,k21,k22,k23,k24,k25, \
41 k30,k31,k32,k33,k34,k35, \
42 k40,k41,k42,k43,k44, \
47 k06,k07,k08,k09,k0A,k0B, \
48 k16,k17,k18,k19,k1A,k1B, \
49 k26,k27,k28,k29,k2A,k2B, \
50 k36,k37,k38,k39,k3A,k3B, \
51 k47,k48,k49,k4A,k4B, \
56 /* matrix positions */ \
58 { k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0A, k0B }, \
59 { k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1A, k1B }, \
60 { k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2A, k2B }, \
61 { k30, k31, k32, k33, k34, k35, k36, k37, k38, k39, k3A, k3B }, \
62 { k40, k41, k42, k43, k44, KC_NO, KC_NO, k47, k48, k49, k4A, k4B }, \
63 { k50, k51, k52, k53, k54, k55, k56, k57, k58, k59, k5A, k5B }, \