6 #include "i2c_master.h"
7 #include <util/delay.h>
10 extern i2c_status_t mcp23018_status;
11 #define I2C_TIMEOUT 1000
12 #define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
13 #define CPU_16MHz 0x00
15 // I2C aliases and register addresses (see "mcp23018.md")
16 //#define I2C_ADDR 0b0100000
18 #define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE )
19 #define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ )
20 #define IODIRA 0x00 // i/o direction register
22 #define GPPUA 0x0C // GPIO pull-up resistor register
24 #define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
26 #define OLATA 0x14 // output latch register
29 uint8_t init_mcp23018(void);
31 /* ---------- LEFT HAND ----------- ---------- RIGHT HAND ---------- */
32 #define LAYOUT_gergo( \
33 L00,L01,L02,L03,L04,L05, R00,R01,R02,R03,R04,R05, \
34 L10,L11,L12,L13,L14,L15,L16, R10,R11,R12,R13,R14,R15,R16, \
35 L20,L21,L22,L23,L24,L25,L26,L30, R30,R20,R21,R22,R23,R24,R25,R26, \
36 L31,L32,L33,L34, R31,R32,R33,R34) \
37 /* matrix positions */ \
39 { KC_NO, L16, L26, L30}, \
40 { L05, L15, L25, L34}, \
41 { L04, L14, L24, L33}, \
42 { L03, L13, L23, L32}, \
43 { L02, L12, L22, L31}, \
44 { L01, L11, L21, KC_NO}, \
45 { L00, L10, L20, KC_NO}, \
47 { KC_NO, R10, R20, R30}, \
48 { R00, R11, R21, R31}, \
49 { R01, R12, R22, R32}, \
50 { R02, R13, R23, R33}, \
51 { R03, R14, R24, R34}, \
52 { R04, R15, R25, KC_NO}, \
53 { R05, R16, R26, KC_NO}, \