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iut: add case to calculate system clock frequency #46

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Jun 12, 2024
Merged

iut: add case to calculate system clock frequency #46

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1 change: 1 addition & 0 deletions zephyr/iut_test/test_zephyr/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -16,3 +16,4 @@ if(CONFIG_GPIO_SEDI)
endif()

target_sources(app PRIVATE x86/test_fatal.c)
target_sources(app PRIVATE timer/test_sys_clock.c)
87 changes: 87 additions & 0 deletions zephyr/iut_test/test_zephyr/timer/test_sys_clock.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,87 @@
/*
* Copyright (c) 2024 Intel Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/

#include "iut.h"
#include "sedi_driver_hpet.h"
#include "sedi_driver_rtc.h"
#include <zephyr/sys/time_units.h>
#include <zephyr/kernel.h>

static int test_sys_clock_freq(int argc, char **argv)
{
uint32_t sec_run = 60;

uint64_t us_rtc_start, cyc_rtc_start;
uint64_t us_hpet_start, cyc_hpet_start;
uint64_t cyc_sys_start;

uint64_t us_rtc_end, cyc_rtc_end;
uint64_t us_hpet_end, cyc_hpet_end;
uint64_t cyc_sys_end;

uint64_t us_rtc, cyc_rtc;
uint64_t us_hpet, cyc_hpet;
uint64_t us_sys, cyc_sys;
uint32_t hz_rtc, hz_hpet, hz_sys;
uint32_t psec_hpet;

if (argc) {
sec_run = (uint32_t)strtoul(argv[0], NULL, 0);
}

iut_case_print("to run %u seconds\n", sec_run);

us_rtc_start = sedi_rtc_get_us();
cyc_rtc_start = sedi_rtc_get();

us_hpet_start = sedi_hpet_get_us();
cyc_hpet_start = sedi_hpet_get_main_counter();

cyc_sys_start = k_cycle_get_64();

k_msleep(sec_run * 1000);

us_rtc_end = sedi_rtc_get_us();
cyc_rtc_end = sedi_rtc_get();

us_hpet_end = sedi_hpet_get_us();
cyc_hpet_end = sedi_hpet_get_main_counter();

cyc_sys_end = k_cycle_get_64();

us_rtc = (us_rtc_end - us_rtc_start);
cyc_rtc = (cyc_rtc_end - cyc_rtc_start);

us_hpet = (us_hpet_end - us_hpet_start);
cyc_hpet = (cyc_hpet_end - cyc_hpet_start);

cyc_sys = (cyc_sys_end - cyc_sys_start);
us_sys = cyc_sys * Z_HZ_us / Z_HZ_cyc;

hz_rtc = (uint32_t)((cyc_rtc * USEC_PER_SEC) / us_rtc);
hz_hpet = (uint32_t)((cyc_hpet * USEC_PER_SEC) / us_hpet);
hz_sys = (uint32_t)((cyc_sys * USEC_PER_SEC) / us_sys);
#define PSEC_PER_USEC (1000000)
psec_hpet = (uint32_t)((us_hpet * PSEC_PER_USEC) / cyc_hpet);

iut_case_print("RTC : %llu cycles, %llu us, %u HZ\n", cyc_rtc, us_rtc, hz_rtc);
iut_case_print("HPET: %llu cycles, %llu us, %u HZ\n", cyc_hpet, us_hpet, hz_hpet);
iut_case_print("SYS CLOCK: %llu cycles, %llu us, %u HZ\n", cyc_sys, us_sys, hz_sys);

/* checking diff < 1/100 */
TEST_ASSERT_TRUE(abs((int)(hz_rtc - SEDI_RTC_TICKS_PER_SECOND)) * 100
< SEDI_RTC_TICKS_PER_SECOND);
TEST_ASSERT_TRUE(abs((int)(hz_sys - CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC)) * 100
< CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC);
TEST_ASSERT_TRUE(abs((int)(psec_hpet - sedi_hpet_get_period())) * 100
< sedi_hpet_get_period());
TEST_ASSERT_TRUE(abs((int)(us_rtc - sec_run * USEC_PER_SEC - us_rtc)) * 100
< (sec_run * USEC_PER_SEC - us_rtc));

return IUT_ERR_OK;
}

DEFINE_IUT_CASE(sys_clock_freq, timer, IUT_ATTRI_NONE);