/*
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* Copyright (C) 2008 Philippe Gerum <rpm@xenomai.org>.
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*
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* Xenomai is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* Xenomai is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Xenomai; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef _COBALT_KERNEL_SCHED_TP_H
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#define _COBALT_KERNEL_SCHED_TP_H
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#ifndef _COBALT_KERNEL_SCHED_H
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#error "please don't include cobalt/kernel/sched-tp.h directly"
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#endif
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/**
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* @addtogroup cobalt_core_sched
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* @{
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*/
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#ifdef CONFIG_XENO_OPT_SCHED_TP
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#define XNSCHED_TP_MIN_PRIO 1
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#define XNSCHED_TP_MAX_PRIO 255
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#define XNSCHED_TP_NR_PRIO \
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(XNSCHED_TP_MAX_PRIO - XNSCHED_TP_MIN_PRIO + 1)
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extern struct xnsched_class xnsched_class_tp;
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struct xnsched_tp_window {
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xnticks_t w_offset;
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int w_part;
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};
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struct xnsched_tp_schedule {
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int pwin_nr;
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xnticks_t tf_duration;
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atomic_t refcount;
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struct xnsched_tp_window pwins[0];
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};
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struct xnsched_tp {
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struct xnsched_tpslot {
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/** Per-partition runqueue. */
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xnsched_queue_t runnable;
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} partitions[CONFIG_XENO_OPT_SCHED_TP_NRPART];
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/** Idle slot for passive windows. */
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struct xnsched_tpslot idle;
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/** Active partition slot */
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struct xnsched_tpslot *tps;
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/** Time frame timer */
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struct xntimer tf_timer;
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/** Global partition schedule */
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struct xnsched_tp_schedule *gps;
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/** Window index of next partition */
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int wnext;
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/** Start of next time frame */
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xnticks_t tf_start;
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/** Assigned thread queue */
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struct list_head threads;
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};
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static inline int xnsched_tp_init_thread(struct xnthread *thread)
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{
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thread->tps = NULL;
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return 0;
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}
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struct xnsched_tp_schedule *
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xnsched_tp_set_schedule(struct xnsched *sched,
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struct xnsched_tp_schedule *gps);
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void xnsched_tp_start_schedule(struct xnsched *sched);
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void xnsched_tp_stop_schedule(struct xnsched *sched);
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int xnsched_tp_get_partition(struct xnsched *sched);
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struct xnsched_tp_schedule *
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xnsched_tp_get_schedule(struct xnsched *sched);
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void xnsched_tp_put_schedule(struct xnsched_tp_schedule *gps);
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#endif /* CONFIG_XENO_OPT_SCHED_TP */
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/** @} */
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#endif /* !_COBALT_KERNEL_SCHED_TP_H */
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