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78 lines
1.2 KiB
C
78 lines
1.2 KiB
C
/*
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* Copyright (c) 2022-2024, ArtInChip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <aic_core.h>
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#include "sys_freq.h"
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void aic_udelay(u32 us)
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{
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u64 start = aic_get_ticks();
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u32 cnt = us * (drv_get_sys_freq() / 1000000U);
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while (1) {
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u64 cur = aic_get_ticks();
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if (start > cur) {
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if ((start - cur) >= cnt)
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break;
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} else {
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if (cur - start >= cnt)
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break;
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}
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}
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}
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void aic_mdelay(u32 ms)
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{
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aic_udelay(ms * 1000);
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}
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u64 aic_get_ticks(void)
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{
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u32 hi, lo;
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do {
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hi = csi_coret_get_valueh();
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lo = csi_coret_get_value();
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} while (hi != csi_coret_get_valueh());
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return ((u64)hi << 32) | lo;
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}
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u64 aic_get_time_us(void)
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{
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u64 cnt = (drv_get_sys_freq() / 1000000U);
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return (aic_get_ticks() / cnt);
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}
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u64 aic_get_time_ms(void)
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{
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return aic_get_time_us() / 1000;
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}
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u64 aic_get_time_us64(void)
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{
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u64 us_cnt = drv_get_sys_freq() / 1000000U;
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return (u64)(aic_get_ticks() / us_cnt);;
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}
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u64 aic_get_time_ms64(void)
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{
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return aic_get_time_us64() / 1000;
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}
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#ifdef KERNEL_RTTHREAD
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#include <rtthread.h>
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void rt_hw_us_delay(rt_uint32_t us)
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{
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aic_udelay(us);
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}
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#endif
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