qmk_firmware/platforms/chibios/gpio.h

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/* Copyright 2021 QMK
*
* 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 3 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/>.
*/
#pragma once
#include <hal.h>
#include "pin_defs.h"
typedef ioline_t pin_t;
/* Operation of GPIO by pin. */
#define gpio_set_pin_input(pin) palSetLineMode((pin), PAL_MODE_INPUT)
#define gpio_set_pin_input_high(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLUP)
#define gpio_set_pin_input_low(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLDOWN)
#define gpio_set_pin_output_push_pull(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_PUSHPULL)
#define gpio_set_pin_output_open_drain(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_OPENDRAIN)
#define gpio_set_pin_output(pin) gpio_set_pin_output_push_pull(pin)
#define gpio_write_pin_high(pin) palSetLine(pin)
#define gpio_write_pin_low(pin) palClearLine(pin)
#define gpio_write_pin(pin, level) \
do { \
if (level) { \
gpio_write_pin_high(pin); \
} else { \
gpio_write_pin_low(pin); \
} \
} while (0)
#define gpio_read_pin(pin) palReadLine(pin)
#define gpio_toggle_pin(pin) palToggleLine(pin)