gpio.h

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 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  *  _____.___.                 .___                    .__.__      *
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  *   \____   / /_/  > /_/  > /_/ | |  | \// __ \_\___ \|  |  |__   *
  *   / ______\___  /\___  /\____ | |__|  (____  /____  >__|____/   *
  *   \/     /_____//_____/      \/            \/     \/            *
  *                          - Midgard -                            *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
  * This software can be used by students and other personal of the *
  * Bern University of Applied Sciences under the terms of the MIT  *
  * license.                                                        *
  * For other persons this software is under the terms of the GNU   *
  * General Public License version 2.                               *
  *                                                                 *
  * Copyright © 2021, Bern University of Applied Sciences.     *
  * All rights reserved.                                            *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <c/common/types.h>
 
#include <stm32f7xx_hal.h>
 
#define LOW_ACTIVE true
#define HIGH_ACTIVE false
 
typedef GPIO_TypeDef* port_t;
 
typedef u8 pin_t;
 
typedef struct {
    port_t port;
    pin_t pin;
    bool lowActive;
} gpio_t;
 
C_LINKAGE bool yggdrasil_GPIO_Init(gpio_t gpio);
 
C_LINKAGE bool yggdrasil_GPIO_Deinit(gpio_t gpio);
 
C_LINKAGE bool yggdrasil_GPIO_Get(gpio_t gpio);
 
C_LINKAGE void yggdrasil_GPIO_Set(gpio_t gpio, bool state);
 
C_LINKAGE void yggdrasil_GPIO_Toggle(gpio_t gpio);
 
C_LINKAGE u16 yggdrasil_GPIO_GetMultiple(port_t port, u8 from, u8 to);
 
C_LINKAGE void yggdrasil_GPIO_SetMultiple(port_t port, u8 from, u8 to, u16 value);