atiload.c revision e35d4d8e 
1/*
2 * Copyright 2000 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of Marc Aurele La France not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission.  Marc Aurele La France makes no representations
11 * about the suitability of this software for any purpose.  It is provided
12 * "as-is" without express or implied warranty.
13 *
14 * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO
16 * EVENT SHALL MARC AURELE LA FRANCE BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
20 * PERFORMANCE OF THIS SOFTWARE.
21 */
22
23#ifdef HAVE_CONFIG_H
24#include "config.h"
25#endif
26
27#include "ati.h"
28#include "aticursor.h"
29#include "atiload.h"
30#include "atistruct.h"
31
32/*
33 * ATILoadModules --
34 *
35 * This function loads other modules required for a screen.
36 */
37pointer
38ATILoadModules
39(
40    ScrnInfoPtr pScreenInfo,
41    ATIPtr      pATI
42)
43{
44    pointer fbPtr = NULL;
45
46    /* Load depth-specific entry points */
47    switch (pATI->bitsPerPixel)
48    {
49        case 8:
50        case 16:
51        case 24:
52        case 32:
53            fbPtr = xf86LoadSubModule(pScreenInfo, "fb");
54            break;
55
56        default:
57            return NULL;
58    }
59    if (!fbPtr)
60        return NULL;
61
62    /* Load ramdac module if needed */
63    if ((pATI->Cursor > ATI_CURSOR_SOFTWARE) &&
64        !xf86LoadSubModule(pScreenInfo, "ramdac"))
65        return NULL;
66
67#ifdef USE_EXA
68    /* Load EXA if needed */
69    if (pATI->useEXA && pATI->OptionAccel)
70    {
71        XF86ModReqInfo req;
72        int errmaj, errmin;
73
74        memset(&req, 0, sizeof(XF86ModReqInfo));
75        req.majorversion = 2;
76        req.minorversion = 0;
77        if (!LoadSubModule(pScreenInfo->module, "exa", NULL, NULL, NULL, &req,
78            &errmaj, &errmin))
79        {
80            LoaderErrorMsg(NULL, "exa", errmaj, errmin);
81            return NULL;
82        }
83    }
84#endif
85#ifdef USE_XAA
86    /* Load XAA if needed */
87    if (!pATI->useEXA && pATI->OptionAccel &&
88        !xf86LoadSubModule(pScreenInfo, "xaa")) {
89	xf86DrvMsg(pScreenInfo->scrnIndex, X_INFO,
90		   "Falling back to shadowfb\n");
91	pATI->OptionAccel = 0;
92	pATI->OptionShadowFB = 1;
93    }
94#endif
95
96    /* Load shadow frame buffer code if needed */
97    if (pATI->OptionShadowFB &&
98        !xf86LoadSubModule(pScreenInfo, "shadowfb"))
99        return NULL;
100
101    return fbPtr;
102}
103