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