zephyr/include/microkernel/ticks.h
Yonattan Louise 068a98add2 Rename K_TimerBlocks to _k_timer_blocks
Updating global variable's name to follow a consistent naming convention.

Change accomplished with the following script:

   #!/bin/bash
   echo "Searching for ${1} to replace with ${2}"
   find ./ \( -name "*.[chs]" -o -name "sysgen.py" -o -name "*.kconf" -o -name "*.arch" \) \
            ! -path "./host/src/genIdt/*" \
            ! -path "*/outdir/*" | xargs sed -i 's/\b'${1}'\b/'${2}'/g';

Change-Id: Ia753f8415b656e3b819a9cdb1eb24d02b750f9d2
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
2016-02-05 20:13:54 -05:00

125 lines
4.1 KiB
C

/* microkernel/ticks.h - microkernel tick header file */
/*
* Copyright (c) 1997-2015 Wind River Systems, Inc.
*
* 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 of Wind River Systems 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 HOLDER 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 TICKS_H
#define TICKS_H
/* includes */
#include <nanokernel.h>
#include <microkernel/k_struct.h>
#include <clock_vars.h>
/* externs */
#ifdef __cplusplus
extern "C" {
#endif
extern int K_ticker(int event);
extern K_TIMER *_k_timer_list_head;
extern K_TIMER *_k_timer_list_tail;
extern struct nano_lifo _k_timer_free;
extern K_TIMER _k_timer_blocks[]; /* array of microkernel timer objects */
extern void scheduler_time_slice_set(int32_t t, kpriority_t p);
/*******************************************************************************
*
* _timer_id_to_ptr - convert timer pointer to timer object identifier
*
* This routine converts a timer pointer into a timer object identifier.
*
* This algorithm relies on the fact that subtracting two pointers that point
* to elements of an array returns the difference between the array subscripts
* of those elements. (That is, "&a[j]-&a[i]" returns "j-i".)
*
* This algorithm also set the upper 16 bits of the object identifier
* to the same value utilized by the microkernel system generator.
*
* RETURNS: timer object identifier
*/
static inline ktimer_t _timer_ptr_to_id(K_TIMER *timer)
{
return (ktimer_t)(0x00010000u + (uint32_t)(timer - &_k_timer_blocks[0]));
}
/*******************************************************************************
*
* _timer_id_to_ptr - convert timer object identifier to timer pointer
*
* This routine converts a timer object identifier into a timer pointer.
*
* RETURNS: timer pointer
*/
static inline K_TIMER *_timer_id_to_ptr(ktimer_t timer)
{
return &_k_timer_blocks[OBJ_INDEX(timer)];
}
extern uint32_t task_cycle_get_32(void);
extern int32_t task_tick_get_32(void);
extern int64_t task_tick_get(void);
extern ktimer_t task_timer_alloc(void);
extern void task_timer_free(ktimer_t timer);
extern void task_timer_start(ktimer_t timer,
int32_t duration,
int32_t period,
ksem_t sema);
extern void task_timer_restart(ktimer_t timer,
int32_t duration,
int32_t period);
extern void task_timer_stop(ktimer_t timer);
extern int64_t task_tick_delta(int64_t *reftime);
static inline int32_t task_tick_delta_32(int64_t *reftime)
{
return (int32_t)task_tick_delta(reftime);
}
extern void task_sleep(int32_t ticks);
extern int task_workload_get(void);
extern void workload_time_slice_set(int32_t t);
extern int kernel_idle(void);
#define isr_cycle_get_32() task_cycle_get_32()
#define isr_tick_get_32() task_tick_get_32()
#define isr_tick_get() task_tick_get()
#ifdef __cplusplus
}
#endif
#endif /* TICKS_H */