VirtualBox

source: vbox/trunk/src/VBox/Additions/linux/drm/vboxvideo_drm.c@ 47388

Last change on this file since 47388 was 47088, checked in by vboxsync, 11 years ago

Additions/linux/drm: added a module alias for the VBox graphics device

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 6.2 KB
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1/** @file $Id: vboxvideo_drm.c 47088 2013-07-11 08:35:29Z vboxsync $
2 *
3 * VirtualBox Additions Linux kernel driver, DRM support
4 */
5
6/*
7 * Copyright (C) 2006-2012 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 * --------------------------------------------------------------------
17 *
18 * This code is based on:
19 *
20 * tdfx_drv.c -- tdfx driver -*- linux-c -*-
21 * Created: Thu Oct 7 10:38:32 1999 by [email protected]
22 *
23 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
24 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
25 * All Rights Reserved.
26 *
27 * Permission is hereby granted, free of charge, to any person obtaining a
28 * copy of this software and associated documentation files (the "Software"),
29 * to deal in the Software without restriction, including without limitation
30 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
31 * and/or sell copies of the Software, and to permit persons to whom the
32 * Software is furnished to do so, subject to the following conditions:
33 *
34 * The above copyright notice and this permission notice (including the next
35 * paragraph) shall be included in all copies or substantial portions of the
36 * Software.
37 *
38 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
39 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
40 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
41 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
42 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
43 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
44 * DEALINGS IN THE SOFTWARE.
45 *
46 * Authors:
47 * Rickard E. (Rik) Faith <[email protected]>
48 * Daryll Strauss <[email protected]>
49 * Gareth Hughes <[email protected]>
50 */
51
52#include <linux/version.h>
53#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33)
54# include <generated/autoconf.h>
55#else
56# ifndef AUTOCONF_INCLUDED
57# include <linux/autoconf.h>
58# endif
59#endif
60#include <linux/module.h>
61#include "version-generated.h"
62
63#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
64
65# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 32)
66# ifdef RHEL_RELEASE_CODE
67# if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6, 1)
68# define DRM_RHEL61
69# endif
70# if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6, 3)
71# define DRM_RHEL63
72# endif
73# if RHEL_RELEASE_CODE >= RHEL_RELEASE_VERSION(6, 4)
74# define DRM_RHEL64
75# endif
76# endif
77# endif
78
79#include "drm/drmP.h"
80#include "vboxvideo_drm.h"
81
82# ifndef RHEL_RELEASE_CODE
83# if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 2, 39) && LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
84# if defined(DRM_MODE_OBJECT_PLANE) && defined(DRM_IOCTL_MODE_ADDFB2)
85# define DRM_DEBIAN_34ON32
86# endif
87# endif
88# endif
89
90static struct pci_device_id pciidlist[] = {
91 vboxvideo_PCI_IDS
92};
93
94MODULE_DEVICE_TABLE(pci, pciidlist);
95
96int vboxvideo_driver_load(struct drm_device * dev, unsigned long flags)
97{
98# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 28)
99 return drm_vblank_init(dev, 1);
100#else
101 return 0;
102#endif
103}
104#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0) || defined(DRM_RHEL63) || defined(DRM_DEBIAN_34ON32)
105/* since linux-3.3.0-rc1 drm_driver::fops is pointer */
106static struct file_operations driver_fops =
107{
108 .owner = THIS_MODULE,
109 .open = drm_open,
110 .release = drm_release,
111 .unlocked_ioctl = drm_ioctl,
112 .mmap = drm_mmap,
113 .poll = drm_poll,
114 .fasync = drm_fasync,
115};
116#endif
117
118static struct drm_driver driver =
119{
120 /* .driver_features = DRIVER_USE_MTRR, */
121 .load = vboxvideo_driver_load,
122#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 6, 0) && !defined(DRM_RHEL64)
123 .reclaim_buffers = drm_core_reclaim_buffers,
124#endif
125 /* As of Linux 2.6.37, always the internal functions are used. */
126#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 37) && !defined(DRM_RHEL61)
127 .get_map_ofs = drm_core_get_map_ofs,
128 .get_reg_ofs = drm_core_get_reg_ofs,
129#endif
130# if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0) && !defined(DRM_RHEL63) && !defined(DRM_DEBIAN_34ON32)
131 .fops =
132 {
133 .owner = THIS_MODULE,
134 .open = drm_open,
135 .release = drm_release,
136 /* This was changed with Linux 2.6.33 but Fedora backported this
137 * change to their 2.6.32 kernel. */
138#if defined(DRM_UNLOCKED) || LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33)
139 .unlocked_ioctl = drm_ioctl,
140#else
141 .ioctl = drm_ioctl,
142#endif
143 .mmap = drm_mmap,
144 .poll = drm_poll,
145 .fasync = drm_fasync,
146 },
147#else /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 3, 0) || defined(DRM_RHEL63) || defined(DRM_DEBIAN_34ON32) */
148 .fops = &driver_fops,
149#endif
150#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39) && !defined(DRM_RHEL61)
151 .pci_driver =
152 {
153 .name = DRIVER_NAME,
154 .id_table = pciidlist,
155 },
156#endif
157 .name = DRIVER_NAME,
158 .desc = DRIVER_DESC,
159 .date = DRIVER_DATE,
160 .major = DRIVER_MAJOR,
161 .minor = DRIVER_MINOR,
162 .patchlevel = DRIVER_PATCHLEVEL,
163};
164
165#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 39) || defined(DRM_RHEL61)
166static struct pci_driver pci_driver =
167{
168 .name = DRIVER_NAME,
169 .id_table = pciidlist,
170};
171#endif
172
173static int __init vboxvideo_init(void)
174{
175#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39) && !defined(DRM_RHEL61)
176 return drm_init(&driver);
177#else
178 return drm_pci_init(&driver, &pci_driver);
179#endif
180}
181
182static void __exit vboxvideo_exit(void)
183{
184#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 39) && !defined(DRM_RHEL61)
185 drm_exit(&driver);
186#else
187 drm_pci_exit(&driver, &pci_driver);
188#endif
189}
190
191module_init(vboxvideo_init);
192module_exit(vboxvideo_exit);
193
194MODULE_AUTHOR(DRIVER_AUTHOR);
195MODULE_DESCRIPTION(DRIVER_DESC);
196
197#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) */
198
199#ifdef MODULE_VERSION
200MODULE_VERSION(VBOX_VERSION_STRING);
201#endif
202MODULE_LICENSE("GPL and additional rights");
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