circuitpython/ports/stm/peripherals/stm32f7/stm32f746xx/gpio.c

/*
 * This file is part of the Micro Python project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2020 Lucian Copeland for Adafruit Industries
 * Copyright (c) 2020 Mark Olsson <mark@markolsson.se>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "gpio.h"
#include "common-hal/microcontroller/Pin.h"

void stm32_peripherals_gpio_init(void) {
    // Enable all GPIO for now
    __HAL_RCC_GPIOA_CLK_ENABLE();
    __HAL_RCC_GPIOB_CLK_ENABLE();
    __HAL_RCC_GPIOC_CLK_ENABLE();
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOE_CLK_ENABLE();
    __HAL_RCC_GPIOF_CLK_ENABLE();
    __HAL_RCC_GPIOG_CLK_ENABLE();
    __HAL_RCC_GPIOH_CLK_ENABLE();
    __HAL_RCC_GPIOI_CLK_ENABLE();
    __HAL_RCC_GPIOJ_CLK_ENABLE();
    __HAL_RCC_GPIOK_CLK_ENABLE();

    // Never reset pins
    never_reset_pin_number(2,14); // PC14 OSC32_IN
    never_reset_pin_number(2,15); // PC15 OSC32_OUT
    never_reset_pin_number(0,13); // PA13 SWDIO
    never_reset_pin_number(0,14); // PA14 SWCLK
    never_reset_pin_number(7,0); // PH0 OSC_IN
    never_reset_pin_number(7,1); // PH1 OSC_OUT
}