qmk-firmware/keyboards/chimera_ergo/chimera_ergo.h

#pragma once

#include "quantum.h"

#define red_led_off   PORTF |= (1<<5)
#define red_led_on    PORTF &= ~(1<<5)
#define blu_led_off   PORTF |= (1<<4)
#define blu_led_on    PORTF &= ~(1<<4)
#define grn_led_off   PORTD |= (1<<1)
#define grn_led_on    PORTD &= ~(1<<1)

#define set_led_off     red_led_off; grn_led_off; blu_led_off
#define set_led_red     red_led_on;  grn_led_off; blu_led_off
#define set_led_blue    red_led_off; grn_led_off; blu_led_on
#define set_led_green   red_led_off; grn_led_on;  blu_led_off
#define set_led_yellow  red_led_on;  grn_led_on;  blu_led_off
#define set_led_magenta red_led_on;  grn_led_off; blu_led_on
#define set_led_cyan    red_led_off; grn_led_on;  blu_led_on
#define set_led_white   red_led_on;  grn_led_on;  blu_led_on

/*
#define LED_B 5
#define LED_R 6
#define LED_G 7

#define all_leds_off PORTF &= ~(1<<LED_B) & ~(1<<LED_R) & ~(1<<LED_G)

#define red_led_on   PORTF |= (1<<LED_R)
#define red_led_off  PORTF &= ~(1<<LED_R)
#define grn_led_on   PORTF |= (1<<LED_G)
#define grn_led_off  PORTF &= ~(1<<LED_G)
#define blu_led_on   PORTF |= (1<<LED_B)
#define blu_led_off  PORTF &= ~(1<<LED_B)

#define set_led_off     PORTF &= ~(1<<LED_B) & ~(1<<LED_R) & ~(1<<LED_G)
#define set_led_red     PORTF = PORTF & ~(1<<LED_B) & ~(1<<LED_G) | (1<<LED_R)
#define set_led_blue    PORTF = PORTF & ~(1<<LED_G) & ~(1<<LED_R) | (1<<LED_B)
#define set_led_green   PORTF = PORTF & ~(1<<LED_B) & ~(1<<LED_R) | (1<<LED_G)
#define set_led_yellow  PORTF = PORTF & ~(1<<LED_B) | (1<<LED_R) | (1<<LED_G)
#define set_led_magenta PORTF = PORTF & ~(1<<LED_G) | (1<<LED_R) | (1<<LED_B)
#define set_led_cyan    PORTF = PORTF & ~(1<<LED_R) | (1<<LED_B) | (1<<LED_G)
#define set_led_white   PORTF |= (1<<LED_B) | (1<<LED_R) | (1<<LED_G)
*/

#define XXX KC_NO

// This a shortcut to help you visually see your layout.
// The first section contains all of the arguements
// The second converts the arguments into a two-dimensional array
#define LAYOUT( \
    k10, k05, k22, k42, k33, k34,      k37, k38, k48, k29, k49, k1B, \
    k20, k31, k12, k03, k14, k24,      k27, k17, k08, k19, k3A, k2B, \
    k30, k21, k02, k13, k04, k40,      k46, k07, k18, k09, k2A, k3B, \
    k15, k44, k32, k23, k43, k41,      k06, k47, k28, k39, k4A, k16, \
                        k35, k25,      k26, k36 \
) { \
    { XXX, XXX, k02, k03, k04, k05, k06, k07, k08, k09, XXX, XXX }, \
    { k10, XXX, k12, k13, k14, k15, k16, k17, k18, k19, XXX, k1B }, \
    { k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2A, k2B }, \
    { k30, k31, k32, k33, k34, k35, k36, k37, k38, k39, k3A, k3B }, \
    { k40, k41, k42, k43, k44, XXX, k46, k47, k48, k49, k4A, XXX } \
}