50 lines
2.0 KiB
C
50 lines
2.0 KiB
C
/* Copyright 2021 QMK
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <util/delay.h>
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#define wait_ms(ms) \
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do { \
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if (__builtin_constant_p(ms)) { \
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_delay_ms(ms); \
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} else { \
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for (uint16_t i = ms; i > 0; i--) { \
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_delay_ms(1); \
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} \
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} \
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} while (0)
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#define wait_us(us) \
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do { \
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if (__builtin_constant_p(us)) { \
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_delay_us(us); \
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} else { \
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for (uint16_t i = us; i > 0; i--) { \
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_delay_us(1); \
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} \
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} \
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} while (0)
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#define wait_cpuclock(n) __builtin_avr_delay_cycles(n)
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#define CPU_CLOCK F_CPU
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/* The AVR series GPIOs have a one clock read delay for changes in the digital input signal.
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* But here's more margin to make it two clocks. */
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#ifndef GPIO_INPUT_PIN_DELAY
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# define GPIO_INPUT_PIN_DELAY 2
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#endif
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#define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
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