mirror of
https://github.com/dougg3/mac-rom-simm-programmer.git
synced 2024-11-25 10:30:49 +00:00
8aec8807c9
A whole bunch of files in this project had DOS line endings. This is due to how I started working on it on a Windows machine with little Git experience. Now it's inconsistent so I'm fixing it.
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
|
|
* gpio.h
|
|
*
|
|
* Created on: Nov 14, 2020
|
|
* Author: Doug
|
|
*
|
|
* Copyright (C) 2011-2020 Doug Brown
|
|
*
|
|
* 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, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef HAL_GPIO_H_
|
|
#define HAL_GPIO_H_
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
/// Creates a temporary GPIOPin struct. Used when assigning to a GPIOPin variable.
|
|
#define GPIO_PIN(port, pin) ((GPIOPin){port, pin})
|
|
/// A NULL GPIO pin
|
|
#define GPIO_PIN_NULL ((GPIOPin){0xFF, 0xFF})
|
|
|
|
/// The GPIO pin struct
|
|
typedef struct GPIOPin
|
|
{
|
|
/// The port the pin belongs to
|
|
uint8_t port;
|
|
/// The index of the pin on the port
|
|
uint8_t pin;
|
|
} GPIOPin;
|
|
|
|
void GPIO_SetDirection(GPIOPin pin, bool output);
|
|
void GPIO_SetPullup(GPIOPin pin, bool pullup);
|
|
void GPIO_SetOn(GPIOPin pin);
|
|
void GPIO_SetOff(GPIOPin pin);
|
|
void GPIO_Toggle(GPIOPin pin);
|
|
bool GPIO_Read(GPIOPin pin);
|
|
|
|
/** Sets whether a GPIO pin is outputting high or low
|
|
*
|
|
* @param pin The pin
|
|
* @param on True if it's high, false if it's low
|
|
*/
|
|
static inline void GPIO_Set(GPIOPin pin, bool on)
|
|
{
|
|
on ? GPIO_SetOn(pin) : GPIO_SetOff(pin);
|
|
}
|
|
|
|
/** Determines if a GPIO pin is null
|
|
*
|
|
* @param pin The pin
|
|
* @return True if it's null, false if not
|
|
*/
|
|
static inline bool GPIO_IsNull(GPIOPin pin)
|
|
{
|
|
return pin.pin == 0xFF && pin.port == 0xFF;
|
|
}
|
|
|
|
#endif /* HAL_GPIO_H_ */
|