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* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <ztest.h>
#if defined(CONFIG_ARCH_POSIX)
#define ALIGN_MS_BOUNDARY \
do { \
u32_t t = k_uptime_get_32(); \
while (t == k_uptime_get_32()) \
k_busy_wait(50); \
} while (0)
#else
#define ALIGN_MS_BOUNDARY \
do { \
u32_t t = k_uptime_get_32(); \
while (t == k_uptime_get_32()) \
; \
} while (0)
#endif
/**
* @addtogroup kernel_common_tests
* @{
*/
/**
* @brief Test clock uptime APIs functionality
*
* @see k_uptime_get(), k_uptime_get_32(), k_uptime_delta()
* k_uptime_delta_32()
*/
void test_clock_uptime(void)
{
u64_t t64, t32;
s64_t d64 = 0;
/**TESTPOINT: uptime elapse*/
t64 = k_uptime_get();
while (k_uptime_get() < (t64 + 5))
#if defined(CONFIG_ARCH_POSIX)
k_busy_wait(50);
#else
;
#endif
/**TESTPOINT: uptime elapse lower 32-bit*/
t32 = k_uptime_get_32();
while (k_uptime_get_32() < (t32 + 5))
#if defined(CONFIG_ARCH_POSIX)
k_busy_wait(50);
#else
;
#endif
/**TESTPOINT: uptime straddled ms boundary*/
t32 = k_uptime_get_32();
ALIGN_MS_BOUNDARY;
zassert_true(k_uptime_get_32() > t32, NULL);
/**TESTPOINT: uptime delta*/
d64 = k_uptime_delta(&d64);
/* Note: this will stall if the systick period < 5ms */
while (k_uptime_delta(&d64) < 5)
#if defined(CONFIG_ARCH_POSIX)
k_busy_wait(50);
#else
;
#endif
/**TESTPOINT: uptime delta lower 32-bit*/
k_uptime_delta_32(&d64);
/* Note: this will stall if the systick period < 5ms */
while (k_uptime_delta_32(&d64) < 5)
#if defined(CONFIG_ARCH_POSIX)
k_busy_wait(50);
#else
;
#endif
/**TESTPOINT: uptime delta straddled ms boundary*/
k_uptime_delta_32(&d64);
ALIGN_MS_BOUNDARY;
zassert_true(k_uptime_delta_32(&d64) > 0, NULL);
}
/**
* @brief Test clock cycle functionality
*
* @see k_cycle_get_32(), k_uptime_get_32()
*/
void test_clock_cycle(void)
{
u32_t c32, c0, c1, t32;
/**TESTPOINT: cycle elapse*/
ALIGN_MS_BOUNDARY;
c32 = k_cycle_get_32();
/*break if cycle counter wrap around*/
while (k_cycle_get_32() > c32 &&
k_cycle_get_32() < (c32 + sys_clock_hw_cycles_per_tick()))
#if defined(CONFIG_ARCH_POSIX)
k_busy_wait(50);
#else
;
#endif
/**TESTPOINT: cycle/uptime cross check*/
c0 = k_cycle_get_32();
ALIGN_MS_BOUNDARY;
t32 = k_uptime_get_32();
while (t32 == k_uptime_get_32())
#if defined(CONFIG_ARCH_POSIX)
k_busy_wait(50);
#else
;
#endif
c1 = k_uptime_get_32();
/*avoid cycle counter wrap around*/
if (c1 > c0) {
/* delta cycle should be greater than 1 milli-second*/
zassert_true((c1 - c0) >
(sys_clock_hw_cycles_per_sec() / MSEC_PER_SEC),
NULL);
/* delta NS should be greater than 1 milli-second */
zassert_true(SYS_CLOCK_HW_CYCLES_TO_NS(c1 - c0) >
(NSEC_PER_SEC / MSEC_PER_SEC), NULL);
}
}
/**
* @}
*/
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