qmk_firmware/tmk_core/common/wait.h

#ifndef WAIT_H
#define WAIT_H

#include <inttypes.h>

#ifdef __cplusplus
extern "C" {
#endif

#if defined(__AVR__)
#    include <util/delay.h>
#    define wait_ms(ms) _delay_ms(ms)
#    define wait_us(us) _delay_us(us)
#elif defined PROTOCOL_CHIBIOS
#    include "ch.h"
// FIXME: This doesn't compile if `NKRO_ENABLED = no`
#    define wait_ms(ms) chSysPolledDelayX(MS2RTC(STM32_SYSCLK, ms))
#    define wait_us(us) chSysPolledDelayX(US2RTC(STM32_SYSCLK, us))
#elif defined PROTOCOL_ARM_ATSAM
#    include "clks.h"
#    define wait_ms(ms) CLK_delay_ms(ms)
#    define wait_us(us) CLK_delay_us(us)
#elif defined(__arm__)
#    include "wait_api.h"
#else  // Unit tests
void wait_ms(uint32_t ms);
#    define wait_us(us) wait_ms(us / 1000)
#endif

#ifdef __cplusplus
}
#endif

#endif