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a09e091a JB |
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 | |
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 | |
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 | } |