source: vbox/trunk/src/VBox/Additions/linux/drm/vboxvideo_drm.c@ 35662

/** @file $Id: vboxvideo_drm.c 35662 2011-01-20 18:11:08Z vboxsync $
 *
 * VirtualBox Additions Linux kernel driver, DRM support
 */

/*
 * Copyright (C) 2006-2007 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 * --------------------------------------------------------------------
 *
 * This code is based on:
 *
 * tdfx_drv.c -- tdfx driver -*- linux-c -*-
 * Created: Thu Oct  7 10:38:32 1999 by [email protected]
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *    Rickard E. (Rik) Faith <[email protected]>
 *    Daryll Strauss <[email protected]>
 *    Gareth Hughes <[email protected]>
 */

#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)
# include <generated/autoconf.h>
#else
# ifndef AUTOCONF_INCLUDED
#  include <linux/autoconf.h>
# endif
#endif
#include <linux/module.h>
#include "version-generated.h"

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)

#include "drm/drmP.h"
#include "vboxvideo_drm.h"

static struct pci_device_id pciidlist[] = {
        vboxvideo_PCI_IDS
};

int vboxvideo_driver_load(struct drm_device * dev, unsigned long flags)
{
# if LINUX_VERSION_CODE >= KERNEL_VERSION (2, 6, 28)
        return drm_vblank_init(dev, 1);
#else
    return 0;
#endif
}

static struct drm_driver driver = {
        /* .driver_features = DRIVER_USE_MTRR, */
        .load = vboxvideo_driver_load,
        .reclaim_buffers = drm_core_reclaim_buffers,
        /* As of Linux 2.65.37, always the internal functions are used. */
#if LINUX_VERSION_CODE < KERNEL_VERSION (2, 6, 37)
        .get_map_ofs = drm_core_get_map_ofs,
        .get_reg_ofs = drm_core_get_reg_ofs,
#endif
        .fops = {
                 .owner = THIS_MODULE,
                 .open = drm_open,
                 .release = drm_release,
                 /* This was changed with Linux 2.6.33 but Fedora backported this
                  * change to their 2.6.32 kernel. */
#if defined(DRM_UNLOCKED) || LINUX_VERSION_CODE >= KERNEL_VERSION (2, 6, 33)
                 .unlocked_ioctl = drm_ioctl,
#else
                 .ioctl = drm_ioctl,
#endif
                 .mmap = drm_mmap,
                 .poll = drm_poll,
                 .fasync = drm_fasync,
        },
        .pci_driver = {
                 .name = DRIVER_NAME,
                 .id_table = pciidlist,
        },

        .name = DRIVER_NAME,
        .desc = DRIVER_DESC,
        .date = DRIVER_DATE,
        .major = DRIVER_MAJOR,
        .minor = DRIVER_MINOR,
        .patchlevel = DRIVER_PATCHLEVEL,
};

static int __init vboxvideo_init(void)
{
        return drm_init(&driver);
}

static void __exit vboxvideo_exit(void)
{
        drm_exit(&driver);
}

module_init(vboxvideo_init);
module_exit(vboxvideo_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);

#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) */

#ifdef MODULE_VERSION
MODULE_VERSION(VBOX_VERSION_STRING);
#endif
MODULE_LICENSE("GPL and additional rights");