108 lines
3.7 KiB
C
108 lines
3.7 KiB
C
/* microkernel/task.h */
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/*
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* Copyright (c) 1997-2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TASK_H
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#define TASK_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* The following task groups are reserved for system use.
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* SysGen automatically generates corresponding TASKGROUPs with reserved
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* GROUPIDs (in the SysGen files SgObjectCount.cpp - TaskGroupIDSetter
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* constructor; and SgSystem.cpp - AddDefaultObjects method).
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* These files must be updated if any changes are made to the reserved groups.
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*/
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#define EXE_GROUP 1 /* TASKGROUP EXE */
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#define USR_GROUP 2 /* TASKGROUP SYS */
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#define FPU_GROUP 4 /* TASKGROUP FPU */
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extern void _task_ioctl(ktask_t, int);
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extern void _task_group_ioctl(ktask_group_t, int);
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extern void task_yield(void);
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extern void task_priority_set(ktask_t task, kpriority_t prio);
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extern void task_entry_set(ktask_t task, void (*func)(void));
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extern void task_abort_handler_set(void (*func)(void));
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extern int task_offload_to_fiber(int (*)(), void *);
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/*
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* Operations supported by _task_ioctl() and _task_group_ioctl()
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*/
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#define TASK_START 0
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#define TASK_ABORT 1
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#define TASK_SUSPEND 2
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#define TASK_RESUME 3
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#define TASK_BLOCK 4
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#define TASK_UNBLOCK 5
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#define TASK_GROUP_START 0
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#define TASK_GROUP_ABORT 1
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#define TASK_GROUP_SUSPEND 2
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#define TASK_GROUP_RESUME 3
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#define TASK_GROUP_BLOCK 4
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#define TASK_GROUP_UNBLOCK 5
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extern ktask_t task_id_get();
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extern kpriority_t task_priority_get();
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#define task_start(t) _task_ioctl(t, TASK_START)
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#define task_abort(t) _task_ioctl(t, TASK_ABORT)
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#define task_suspend(t) _task_ioctl(t, TASK_SUSPEND)
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#define task_resume(t) _task_ioctl(t, TASK_RESUME)
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extern uint32_t task_group_mask_get();
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extern void task_group_join(uint32_t groups);
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extern void task_group_leave(uint32_t groups);
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#define task_group_start(g) _task_group_ioctl(g, TASK_GROUP_START)
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#define task_group_abort(g) _task_group_ioctl(g, TASK_GROUP_ABORT)
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#define task_group_suspend(g) _task_group_ioctl(g, TASK_GROUP_SUSPEND)
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#define task_group_resume(g) _task_group_ioctl(g, TASK_GROUP_RESUME)
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#define isr_task_id_get() task_id_get()
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#define isr_task_priority_get() task_priority_get()
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#define isr_task_group_mask_get() task_group_mask_get()
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#ifdef __cplusplus
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}
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#endif
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#endif /* TASK_H */
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