gpio.h (1764B)
1 /* Copyright 2021 QMK 2 * 3 * This program is free software: you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation, either version 3 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. 15 */ 16 #pragma once 17 18 #include <hal.h> 19 #include "pin_defs.h" 20 21 typedef ioline_t pin_t; 22 23 /* Operation of GPIO by pin. */ 24 25 #define gpio_set_pin_input(pin) palSetLineMode((pin), PAL_MODE_INPUT) 26 #define gpio_set_pin_input_high(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLUP) 27 #define gpio_set_pin_input_low(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLDOWN) 28 #define gpio_set_pin_output_push_pull(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_PUSHPULL) 29 #define gpio_set_pin_output_open_drain(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_OPENDRAIN) 30 #define gpio_set_pin_output(pin) gpio_set_pin_output_push_pull(pin) 31 32 #define gpio_write_pin_high(pin) palSetLine(pin) 33 #define gpio_write_pin_low(pin) palClearLine(pin) 34 #define gpio_write_pin(pin, level) \ 35 do { \ 36 if (level) { \ 37 gpio_write_pin_high(pin); \ 38 } else { \ 39 gpio_write_pin_low(pin); \ 40 } \ 41 } while (0) 42 43 #define gpio_read_pin(pin) palReadLine(pin) 44 45 #define gpio_toggle_pin(pin) palToggleLine(pin)