mirror of
https://github.com/zephyrproject-rtos/zephyr
synced 2025-08-23 08:16:31 +00:00
7890a5960b
Hides the existence of the microkernel timer list variables from everyone but the microkernel itself. Change-Id: I81b64040efce849328e860067e37731b755a094d Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
122 lines
4.0 KiB
C
122 lines
4.0 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_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 */
|