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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-02-20 07:55:18 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-02-25 07:18:37 +0100 |
commit | 32561f5f5b9dc5bfc396e497da118eeaf3fb1867 (patch) | |
tree | f1617fbd06846930e7d3ec2bb737f060b63b804c /cpukit/include/rtems/confdefs | |
parent | config: Add <rtems/confdefs/mcpi.h> (diff) | |
download | rtems-32561f5f5b9dc5bfc396e497da118eeaf3fb1867.tar.bz2 |
config: Add <rtems/confdefs/clock.h>
Remove all comments and copyrightable content from the moved content.
Use BSD-2-Clause license for new file.
Update #3053.
Update #3875.
Diffstat (limited to 'cpukit/include/rtems/confdefs')
-rw-r--r-- | cpukit/include/rtems/confdefs/clock.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/cpukit/include/rtems/confdefs/clock.h b/cpukit/include/rtems/confdefs/clock.h new file mode 100644 index 0000000000..1c70ca0019 --- /dev/null +++ b/cpukit/include/rtems/confdefs/clock.h @@ -0,0 +1,109 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/** + * @file + * + * @ingroup RTEMSApplicationConfiguration + * + * @brief Evaluate Clock Configuration Options + */ + +/* + * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) + * + * 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 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 */ |