1/*
2 * Copyright © 2010 NVIDIA Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24#ifdef HAVE_DIX_CONFIG_H
25#include <dix-config.h>
26#endif
27
28#ifndef _MISYNCSTR_H_
29#define _MISYNCSTR_H_
30
31#include <stdint.h>
32#include "dix.h"
33#include "misync.h"
34#include "scrnintstr.h"
35#include <X11/extensions/syncconst.h>
36
37/* Sync object types */
38#define SYNC_COUNTER		0
39#define SYNC_FENCE		1
40
41struct _SyncObject {
42    ClientPtr client;           /* Owning client. 0 for system counters */
43    struct _SyncTriggerList *pTriglist; /* list of triggers */
44    XID id;                     /* resource ID */
45    unsigned char type;         /* SYNC_* */
46    unsigned char initialized;  /* FALSE if created but not initialized */
47    Bool beingDestroyed;        /* in process of going away */
48};
49
50typedef struct _SyncCounter {
51    SyncObject sync;            /* Common sync object data */
52    int64_t value;              /* counter value */
53    struct _SysCounterInfo *pSysCounterInfo; /* NULL if not a system counter */
54} SyncCounter;
55
56struct _SyncFence {
57    SyncObject sync;            /* Common sync object data */
58    ScreenPtr pScreen;          /* Screen of this fence object */
59    SyncFenceFuncsRec funcs;    /* Funcs for performing ops on fence */
60    Bool triggered;             /* fence state */
61    PrivateRec *devPrivates;    /* driver-specific per-fence data */
62};
63
64struct _SyncTrigger {
65    SyncObject *pSync;
66    int64_t wait_value;         /* wait value */
67    unsigned int value_type;    /* Absolute or Relative */
68    unsigned int test_type;     /* transition or Comparison type */
69    int64_t test_value;         /* trigger event threshold value */
70    Bool (*CheckTrigger)(struct _SyncTrigger *pTrigger,
71                         int64_t newval);
72    void (*TriggerFired)(struct _SyncTrigger *pTrigger);
73    void (*CounterDestroyed)(struct _SyncTrigger *pTrigger);
74};
75
76typedef struct _SyncTriggerList {
77    SyncTrigger *pTrigger;
78    struct _SyncTriggerList *next;
79} SyncTriggerList;
80
81extern DevPrivateKeyRec miSyncScreenPrivateKey;
82
83#define SYNC_SCREEN_PRIV(pScreen) 				\
84    (SyncScreenPrivPtr) dixLookupPrivate(&pScreen->devPrivates,	\
85					 &miSyncScreenPrivateKey)
86
87typedef struct _syncScreenPriv {
88    /* Wrappable sync-specific screen functions */
89    SyncScreenFuncsRec funcs;
90
91    /* Wrapped screen functions */
92    CloseScreenProcPtr CloseScreen;
93} SyncScreenPrivRec, *SyncScreenPrivPtr;
94
95#endif                          /* _MISYNCSTR_H_ */
96