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/* 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 <ch.h>
#include <hal.h>
/* chThdSleepX of zero maps to infinite - so we map to a tiny delay to still yield */
#define wait_ms(ms) \
do { \
if (ms != 0) { \
chThdSleepMilliseconds(ms); \
} else { \
chThdSleepMicroseconds(1); \
} \
} while (0)
#ifdef WAIT_US_TIMER
void wait_us(uint16_t duration);
#else
# define wait_us(us) \
do { \
if (us != 0) { \
chThdSleepMicroseconds(us); \
} else { \
chThdSleepMicroseconds(1); \
} \
} while (0)
#endif
#include "_wait.c"
#define CPU_CLOCK STM32_SYSCLK
/* For GPIOs on ARM-based MCUs, the input pins are sampled by the clock of the bus
* to which the GPIO is connected.
* The connected buses differ depending on the various series of MCUs.
* And since the instruction execution clock of the CPU and the bus clock of GPIO are different,
* there is a delay of several clocks to read the change of the input signal.
*
* Define this delay with the GPIO_INPUT_PIN_DELAY macro.
* If the GPIO_INPUT_PIN_DELAY macro is not defined, the following default values will be used.
* (A fairly large value of 0.25 microseconds is set.)
*/
#ifndef GPIO_INPUT_PIN_DELAY
# define GPIO_INPUT_PIN_DELAY (CPU_CLOCK / 1000000L / 4)
#endif
#define waitInputPinDelay() wait_cpuclock(GPIO_INPUT_PIN_DELAY)
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