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Diffstat (limited to 'nuttx/sched/clock_internal.h')
-rw-r--r-- | nuttx/sched/clock_internal.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/nuttx/sched/clock_internal.h b/nuttx/sched/clock_internal.h new file mode 100644 index 000000000..aba9723b6 --- /dev/null +++ b/nuttx/sched/clock_internal.h @@ -0,0 +1,91 @@ +/******************************************************************************** + * sched/clock_internal.h + * + * Copyright (C) 2007-2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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 __SCHED_CLOCK_INTERNAL_H +#define __SCHED_CLOCK_INTERNAL_H + +/******************************************************************************** + * Included Files + ********************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> + +#include <nuttx/clock.h> +#include <nuttx/compiler.h> + +/******************************************************************************** + * Pre-processor Definitions + ********************************************************************************/ +/* Configuration ************************************************************/ +/* If CONFIG_SYSTEM_TIME64 is selected and the CPU supports long long types, + * then a 64-bit system time will be used. + */ + +#ifndef CONFIG_HAVE_LONG_LONG +# undef CONFIG_SYSTEM_TIME64 +#endif + +/******************************************************************************** + * Public Type Definitions + ********************************************************************************/ + +/******************************************************************************** + * Global Variables + ********************************************************************************/ + +#ifdef CONFIG_SYSTEM_TIME64 +extern uint64_t g_tickbias; +#else +extern uint32_t g_tickbias; +#endif + +extern struct timespec g_basetime; + +/******************************************************************************** + * Public Function Prototypes + ********************************************************************************/ + +void weak_function clock_initialize(void); +void weak_function clock_timer(void); + +int clock_abstime2ticks(clockid_t clockid, + FAR const struct timespec *abstime, + FAR int *ticks); +int clock_time2ticks(FAR const struct timespec *reltime, FAR int *ticks); +int clock_ticks2time(int ticks, FAR struct timespec *reltime); + +#endif /* __SCHED_CLOCK_INTERNAL_H */ |