qmk_firmware/keyboards/bastardkb/dilemma/splinky/splinky.c

/*
 * Copyright 2022 Charly Delay <charly@codesink.dev> (@0xcharly)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "quantum.h"

// Forward declare RP2040 SDK declaration.
void gpio_init(uint gpio);

void keyboard_pre_init_kb(void) {
    // Ensures that GP26 through GP29 are initialized as digital inputs (as
    // opposed to analog inputs).  These GPIOs are shared with A0 through A3,
    // respectively.  On RP2040-B2 and later, the digital inputs are disabled by
    // default (see RP2040-E6).
    gpio_init(GP26);
    gpio_init(GP27);
    gpio_init(GP28);
    gpio_init(GP29);
    keyboard_pre_init_user();
}