/** @file $Id: vboxvideo_device.c 47388 2013-07-25 12:12:10Z vboxsync $ * * VirtualBox Additions Linux kernel video driver */ /* * Copyright (C) 2011-2012 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 * vboxvideo_device.c * with the following copyright and permission notice: * * Copyright 2010 Matt Turner. * * 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 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 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Matt Turner */ #include #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) #include "the-linux-kernel.h" #include "vboxvideo_drv.h" #include static int vboxvideo_vram_init(struct vboxvideo_device *gdev) { /* work out accessible VRAM */ gdev->mc.aper_base = pci_resource_start(gdev->ddev->pdev, 1); gdev->mc.aper_size = pci_resource_len(gdev->ddev->pdev, 1); gdev->mc.vram = ioremap(gdev->mc.aper_base, gdev->mc.aper_size); if (!gdev->mc.vram) { VBOXVIDEO_ERROR("Unable to ioremap %lu MB of VRAM. Bailing out.\n", (unsigned long)gdev->mc.aper_size / MB); return -1; } gdev->fAnyX = VBoxVideoAnyWidthAllowed(); gdev->mc.vram_size = VBoxVideoGetVRAMSize(); return 0; } static void vboxvideo_vram_fini(struct vboxvideo_device *gdev) { iounmap(gdev->mc.vram); gdev->mc.vram = NULL; } int vboxvideo_device_init(struct vboxvideo_device *gdev, struct drm_device *ddev, struct pci_dev *pdev, uint32_t flags) { int ret; gdev->dev = &pdev->dev; gdev->ddev = ddev; gdev->pdev = pdev; gdev->flags = flags; gdev->num_crtc = 1; /** @todo hardware initialisation goes here once we start doing more complex * stuff. */ ret = vboxvideo_vram_init(gdev); if (ret) return ret; return 0; } void vboxvideo_device_fini(struct vboxvideo_device *gdev) { vboxvideo_vram_fini(gdev); } #endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27) */