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
49Bool fbSlotClaimed = FALSE;
50
51int
52xf86ClaimFbSlot(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 */
86int
87xf86GetFbInfoForScreen(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