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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplApplConfig
*
* @brief This header file evaluates configuration options related to the clock
* driver configuration.
*/
/*
* Copyright (C) 2020 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.
*/
#ifndef _RTEMS_CONFDEFS_CLOCK_H
#define _RTEMS_CONFDEFS_CLOCK_H
#ifndef __CONFIGURATION_TEMPLATE_h
#error "Do not include this file directly, use <rtems/confdefs.h> instead"
#endif
#ifdef CONFIGURE_INIT
#include <rtems/score/watchdogticks.h>
#if !defined(CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER) \
&& !defined(CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER) \
&& !defined(CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER)
#error "You must define one of CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER, CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER, and CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER"
#endif
#if ( defined(CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER) \
+ defined(CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER) + \
+ defined(CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER) ) > 1
#error "CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER, CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER, and CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER are mutually exclusive"
#endif
#ifdef CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#include <rtems/clockdrv.h>
#include <rtems/sysinit.h>
#endif
#ifndef CONFIGURE_MICROSECONDS_PER_TICK
#define CONFIGURE_MICROSECONDS_PER_TICK 10000
#endif
#if 1000000 % CONFIGURE_MICROSECONDS_PER_TICK != 0
#warning "The clock ticks per second is not an integer"
#endif
#if defined(CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER) \
&& defined(CONFIGURE_TICKS_PER_TIMESLICE) \
&& CONFIGURE_TICKS_PER_TIMESLICE <= 0
#error "CONFIGURE_TICKS_PER_TIMESLICE shall be greater than zero"
#endif
#if CONFIGURE_MICROSECONDS_PER_TICK <= 0
#error "CONFIGURE_MICROSECONDS_PER_TICK must be positive"
#endif
#ifdef __cplusplus
extern "C" {
#endif
#ifdef CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
RTEMS_SYSINIT_ITEM(
_Clock_Initialize,
RTEMS_SYSINIT_DEVICE_DRIVERS,
RTEMS_SYSINIT_ORDER_THIRD
);
#endif
const uint32_t _Watchdog_Microseconds_per_tick =
CONFIGURE_MICROSECONDS_PER_TICK;
const uint32_t _Watchdog_Nanoseconds_per_tick =
(uint32_t) 1000 * CONFIGURE_MICROSECONDS_PER_TICK;
const uint32_t _Watchdog_Ticks_per_second =
1000000 / CONFIGURE_MICROSECONDS_PER_TICK;
#if defined(CONFIGURE_TICKS_PER_TIMESLICE) \
&& CONFIGURE_TICKS_PER_TIMESLICE != WATCHDOG_TICKS_PER_TIMESLICE_DEFAULT
const uint32_t _Watchdog_Ticks_per_timeslice =
CONFIGURE_TICKS_PER_TIMESLICE;
#endif
#ifdef __cplusplus
}
#endif
#endif /* CONFIGURE_INIT */
#endif /* _RTEMS_CONFDEFS_CLOCK_H */
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