1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 *
25 * Copyright 2017 RackTop Systems.
26 */
27
28#ifndef _SYS_CYCLIC_H
29#define	_SYS_CYCLIC_H
30
31#ifdef	__cplusplus
32extern "C" {
33#endif
34
35#ifndef _ASM
36#include <sys/time.h>
37#endif /* !_ASM */
38
39#define	CY_LOW_LEVEL		0
40#define	CY_LOCK_LEVEL		1
41#define	CY_HIGH_LEVEL		2
42#define	CY_SOFT_LEVELS		2
43#define	CY_LEVELS		3
44
45#ifndef _ASM
46
47typedef uintptr_t cyclic_id_t;
48typedef int cyc_index_t;
49typedef int cyc_cookie_t;
50typedef uint16_t cyc_level_t;
51typedef void (*cyc_func_t)(void *);
52typedef void *cyb_arg_t;
53
54#define	CYCLIC_NONE		((cyclic_id_t)0)
55
56typedef struct cyc_handler {
57	cyc_func_t cyh_func;
58	void *cyh_arg;
59	cyc_level_t cyh_level;
60} cyc_handler_t;
61
62typedef struct cyc_time {
63	hrtime_t cyt_when;
64	hrtime_t cyt_interval;
65} cyc_time_t;
66
67#define	CY_INFINITY	INT64_MAX
68
69#if defined(_KERNEL) || defined(_FAKE_KERNEL)
70
71extern cyclic_id_t cyclic_add(cyc_handler_t *, cyc_time_t *);
72extern void cyclic_remove(cyclic_id_t);
73extern int cyclic_reprogram(cyclic_id_t, hrtime_t);
74extern hrtime_t cyclic_getres();
75
76extern void cyclic_suspend();
77extern void cyclic_resume();
78
79#endif /* _KERNEL || _FAKE_KERNEL */
80
81#endif /* !_ASM */
82
83#ifdef	__cplusplus
84}
85#endif
86
87#endif /* _SYS_CYCLIC_H */
88