1 /*
2 * Copyright (c) 2000-2001 by The XFree86 Project, Inc.
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 shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Except as contained in this notice, the name of the copyright holder(s)
23 * and author(s) shall not be used in advertising or otherwise to promote
24 * the sale, use or other dealings in this Software without prior written
25 * authorization from the copyright holder(s) and author(s).
26 */
27
28 /*
29 * This file contains the interfaces to the bus-specific code
30 */
31
32 #ifdef HAVE_XORG_CONFIG_H
33 #include <xorg-config.h>
34 #endif
35
36 #include <ctype.h>
37 #include <stdlib.h>
38 #include <unistd.h>
39 #include <X11/X.h>
40 #include "os.h"
41 #include "xf86.h"
42 #include "xf86Priv.h"
43
44 #include "xf86Bus.h"
45
46 #define XF86_OS_PRIVS
47 #include "xf86_OSproc.h"
48
49 Bool fbSlotClaimed = FALSE;
50
51 int
xf86ClaimFbSlot(DriverPtr drvp,int chipset,GDevPtr dev,Bool active)52 xf86ClaimFbSlot(DriverPtr drvp, int chipset, GDevPtr dev, Bool active)
53 {
54 EntityPtr p;
55 int num;
56
57 #ifdef XSERVER_PLATFORM_BUS
58 if (platformSlotClaimed)
59 return -1;
60 #endif
61 #ifdef XSERVER_LIBPCIACCESS
62 if (pciSlotClaimed)
63 return -1;
64 #endif
65 #if defined(__sparc__) || defined (__sparc64__)
66 if (sbusSlotClaimed)
67 return -1;
68 #endif
69
70 num = xf86AllocateEntity();
71 p = xf86Entities[num];
72 p->driver = drvp;
73 p->chipset = 0;
74 p->bus.type = BUS_NONE;
75 p->active = active;
76 p->inUse = FALSE;
77 xf86AddDevToEntity(num, dev);
78
79 fbSlotClaimed = TRUE;
80 return num;
81 }
82
83 /*
84 * Get the list of FB "slots" claimed by a screen
85 */
86 int
xf86GetFbInfoForScreen(int scrnIndex)87 xf86GetFbInfoForScreen(int scrnIndex)
88 {
89 int num = 0;
90 int i;
91 EntityPtr p;
92
93 for (i = 0; i < xf86Screens[scrnIndex]->numEntities; i++) {
94 p = xf86Entities[xf86Screens[scrnIndex]->entityList[i]];
95 if (p->bus.type == BUS_NONE) {
96 num++;
97 }
98 }
99 return num;
100 }
101