1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/*
* Copyright 1998 by Alan Hourihane, Wigan, England.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Alan Hourihane not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Alan Hourihane makes no representations
* about the suitability of this software for any purpose. It is provided
* "as is" without express or implied warranty.
*
* ALAN HOURIHANE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* Authors: Alan Hourihane, <alanh@fairlite.demon.co.uk>
*
* Generic RAMDAC access routines.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86RamDacPriv.h"
int RamDacHWPrivateIndex = -1;
int RamDacScreenPrivateIndex = -1;
RamDacRecPtr
RamDacCreateInfoRec(void)
{
RamDacRecPtr infoRec;
infoRec = xcalloc(1, sizeof(RamDacRec));
return infoRec;
}
RamDacHelperRecPtr
RamDacHelperCreateInfoRec(void)
{
RamDacHelperRecPtr infoRec;
infoRec = xcalloc(1, sizeof(RamDacHelperRec));
return infoRec;
}
void
RamDacDestroyInfoRec(RamDacRecPtr infoRec)
{
xfree(infoRec);
}
void
RamDacHelperDestroyInfoRec(RamDacHelperRecPtr infoRec)
{
xfree(infoRec);
}
Bool
RamDacInit(ScrnInfoPtr pScrn, RamDacRecPtr ramdacPriv)
{
RamDacScreenRecPtr ramdacScrPtr;
/*
* make sure the RamDacRec is allocated
*/
if (!RamDacGetRec(pScrn))
return FALSE;
ramdacScrPtr =
((RamDacScreenRecPtr) (pScrn)->privates[RamDacGetScreenIndex()].ptr);
ramdacScrPtr->RamDacRec = ramdacPriv;
return(TRUE);
}
void
RamDacGetRecPrivate(void)
{
if (RamDacHWPrivateIndex < 0)
RamDacHWPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
if (RamDacScreenPrivateIndex < 0)
RamDacScreenPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
return;
}
Bool
RamDacGetRec(ScrnInfoPtr scrp)
{
RamDacGetRecPrivate();
/*
* New privates are always set to NULL, so we can check if the allocation
* has already been done.
*/
if (scrp->privates[RamDacHWPrivateIndex].ptr != NULL)
return TRUE;
if (scrp->privates[RamDacScreenPrivateIndex].ptr != NULL)
return TRUE;
scrp->privates[RamDacHWPrivateIndex].ptr =
xnfcalloc(sizeof(RamDacHWRec), 1);
scrp->privates[RamDacScreenPrivateIndex].ptr =
xnfcalloc(sizeof(RamDacScreenRec), 1);
return TRUE;
}
void
RamDacFreeRec(ScrnInfoPtr pScrn)
{
RamDacHWRecPtr ramdacHWPtr;
RamDacScreenRecPtr ramdacScrPtr;
if (RamDacHWPrivateIndex < 0)
return;
if (RamDacScreenPrivateIndex < 0)
return;
ramdacHWPtr = RAMDACHWPTR(pScrn);
ramdacScrPtr = ((RamDacScreenRecPtr)
(pScrn)->privates[RamDacGetScreenIndex()].ptr);
if (ramdacHWPtr)
xfree(ramdacHWPtr);
ramdacHWPtr = NULL;
if (ramdacScrPtr)
xfree(ramdacScrPtr);
ramdacScrPtr = NULL;
}
int
RamDacGetHWIndex(void)
{
return RamDacHWPrivateIndex;
}
int
RamDacGetScreenIndex(void)
{
return RamDacScreenPrivateIndex;
}
|
