mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-11-25 20:56:42 +00:00
6e40dfa022
* Add open-drain GPIO support. * `qmk format-c` * Wording. * Remove port GPIO implementations as the only board that uses it has its own internal defs anyway. Will wait for first-class handling of ports in core before reimplementing.
39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
/* 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 <avr/io.h>
|
|
#include "pin_defs.h"
|
|
|
|
typedef uint8_t pin_t;
|
|
|
|
/* Operation of GPIO by pin. */
|
|
|
|
#define setPinInput(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
|
|
#define setPinInputHigh(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
|
|
#define setPinInputLow(pin) _Static_assert(0, "AVR processors cannot implement an input as pull low")
|
|
#define setPinOutputPushPull(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF))
|
|
#define setPinOutputOpenDrain(pin) _Static_assert(0, "AVR platform does not implement an open-drain output")
|
|
#define setPinOutput(pin) setPinOutputPushPull(pin)
|
|
|
|
#define writePinHigh(pin) (PORTx_ADDRESS(pin) |= _BV((pin)&0xF))
|
|
#define writePinLow(pin) (PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF))
|
|
#define writePin(pin, level) ((level) ? writePinHigh(pin) : writePinLow(pin))
|
|
|
|
#define readPin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF)))
|
|
|
|
#define togglePin(pin) (PORTx_ADDRESS(pin) ^= _BV((pin)&0xF))
|