From de8caf708c1a9a80527a04be620ed3969262e50b Mon Sep 17 00:00:00 2001 From: Joel Challis Date: Sun, 14 Feb 2021 00:51:06 +0000 Subject: Split gpio and atomic to platform (#11792) --- tmk_core/common/avr/gpio.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 tmk_core/common/avr/gpio.h (limited to 'tmk_core/common/avr/gpio.h') diff --git a/tmk_core/common/avr/gpio.h b/tmk_core/common/avr/gpio.h new file mode 100644 index 0000000000..231556c29c --- /dev/null +++ b/tmk_core/common/avr/gpio.h @@ -0,0 +1,34 @@ +/* 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 . + */ +#pragma once + +#include +#include "pin_defs.h" + +typedef uint8_t pin_t; + +#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 setPinOutput(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF)) + +#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)) -- cgit v1.2.3