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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup DevClockXilTtcValTickCatchUp
*/
/*
* Copyright (C) 2024 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* This file is part of the RTEMS quality process and was automatically
* generated. If you find something that needs to be fixed or
* worded better please post a report or patch to an RTEMS mailing list
* or raise a bug report:
*
* https://www.rtems.org/bugs.html
*
* For information on updating and regenerating please refer to the How-To
* section in the Software Requirements Engineering chapter of the
* RTEMS Software Engineering manual. The manual is provided as a part of
* a release. For development sources please refer to the online
* documentation at:
*
* https://docs.rtems.org
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include <sys/time.h>
#include <rtems/test.h>
/**
* @defgroup DevClockXilTtcValTickCatchUp \
* spec:/dev/clock/xil-ttc/val/tick-catch-up
*
* @ingroup TestsuitesBspsValidationBsp0
*
* @brief Tests some Xilinx TTC clock driver functions.
*
* This test case performs the following actions:
*
* - Synchronize with the clock tick. Disable interrupts. Busy wait three
* clock tick intervals. Enable interrupts.
*
* - Check that exactly three clock ticks happened once interrupts are
* enabled again.
*
* @{
*/
/**
* @brief Synchronize with the clock tick. Disable interrupts. Busy wait
* three clock tick intervals. Enable interrupts.
*/
static void DevClockXilTtcValTickCatchUp_Action_0( void )
{
uint32_t ns_per_tick;
uint64_t three_ticks_interval;
rtems_interrupt_level level;
rtems_interval t_0;
rtems_interval t_1;
rtems_interval t_2;
uint64_t m_0;
uint64_t m_1;
ns_per_tick = rtems_configuration_get_nanoseconds_per_tick();
three_ticks_interval = ( 7 * (uint64_t) nstosbt( ns_per_tick ) ) / 2;
t_0 = rtems_clock_get_ticks_since_boot();
/* Synchronize with clock tick */
do {
t_1 = rtems_clock_get_ticks_since_boot();
m_0 = (uint64_t) rtems_clock_get_monotonic_sbintime();
} while ( t_0 == t_1 );
rtems_interrupt_local_disable( level );
do {
m_1 = (uint64_t) rtems_clock_get_monotonic_sbintime();
} while ( m_1 - m_0 <= three_ticks_interval );
rtems_interrupt_local_enable( level );
/*
* Make sure the clock interrupt was serviced after the interrupt enable.
*/
do {
t_2 = rtems_clock_get_ticks_since_boot();
} while ( t_1 == t_2 );
/*
* Check that exactly three clock ticks happened once interrupts are enabled
* again.
*/
T_step_eq_u32( 0, t_2 - t_1, 3 );
}
/**
* @fn void T_case_body_DevClockXilTtcValTickCatchUp( void )
*/
T_TEST_CASE( DevClockXilTtcValTickCatchUp )
{
T_plan( 1 );
DevClockXilTtcValTickCatchUp_Action_0();
}
/** @} */
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