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/* $Id$ */
/** @file
* VBox Miniport IOCTL related header
*/
/*
* Copyright (C) 2011-2022 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#ifndef GA_INCLUDED_SRC_WINNT_Graphics_Video_common_xpdm_VBoxVideoIOCTL_h
#define GA_INCLUDED_SRC_WINNT_Graphics_Video_common_xpdm_VBoxVideoIOCTL_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <VBox/VMMDev.h> /* VBVAMEMORY */
#include <HGSMI.h>
/* ==================== VirtualBox specific VRP's ==================== */
/* Called by the display driver when it is ready to
* switch to VBVA operation mode.
* Successful return means that VBVA can be used and
* output buffer contains VBVAENABLERESULT data.
* An error means that VBVA can not be used
* (disabled or not supported by the host).
*/
#define IOCTL_VIDEO_VBVA_ENABLE \
CTL_CODE(FILE_DEVICE_VIDEO, 0x400, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to get video port api function pointers */
#define IOCTL_VIDEO_HGSMI_QUERY_PORTPROCS \
CTL_CODE(FILE_DEVICE_VIDEO, 0x434, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to get HGSMI related callbacks */
#define IOCTL_VIDEO_HGSMI_QUERY_CALLBACKS \
CTL_CODE(FILE_DEVICE_VIDEO, 0x431, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to get adapter's HGSMI information */
#define IOCTL_VIDEO_QUERY_HGSMI_INFO \
CTL_CODE(FILE_DEVICE_VIDEO, 0x430, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to enable HGSMI miniport channel */
#define IOCTL_VIDEO_HGSMI_HANDLER_ENABLE \
CTL_CODE(FILE_DEVICE_VIDEO, 0x432, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to disable HGSMI miniport channel */
#define IOCTL_VIDEO_HGSMI_HANDLER_DISABLE \
CTL_CODE(FILE_DEVICE_VIDEO, 0x433, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to get framebuffer offset */
#define IOCTL_VIDEO_VHWA_QUERY_INFO \
CTL_CODE(FILE_DEVICE_VIDEO, 0x435, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* Called to get adapter's generic information */
#define IOCTL_VIDEO_QUERY_VBOXVIDEO_INFO \
CTL_CODE(FILE_DEVICE_VIDEO, 0x436, METHOD_BUFFERED, FILE_ANY_ACCESS)
/* ==================== Data structures used by VirtualBox VRPS's ==================== */
typedef void* HVBOXVIDEOHGSMI;
/** Complete host commands addressed to the display */
typedef DECLCALLBACKTYPE(void, FNVBOXVIDEOHGSMICOMPLETION,(HVBOXVIDEOHGSMI hHGSMI,
struct VBVAHOSTCMD RT_UNTRUSTED_VOLATILE_HOST * pCmd));
typedef FNVBOXVIDEOHGSMICOMPLETION *PFNVBOXVIDEOHGSMICOMPLETION;
/** request the host commands addressed to the display */
typedef DECLCALLBACKTYPE(int, FNVBOXVIDEOHGSMICOMMANDS,(HVBOXVIDEOHGSMI hHGSMI, uint8_t u8Channel, uint32_t iDevice,
struct VBVAHOSTCMD RT_UNTRUSTED_VOLATILE_HOST ** ppCmd));
typedef FNVBOXVIDEOHGSMICOMMANDS *PFNVBOXVIDEOHGSMICOMMANDS;
/** post guest command (offset) to the host */
typedef DECLCALLBACKTYPE(void, FNVBOXVIDEOHGSMIPOSTCOMMAND,(HVBOXVIDEOHGSMI hHGSMI, HGSMIOFFSET offCmd));
typedef FNVBOXVIDEOHGSMIPOSTCOMMAND *PFNVBOXVIDEOHGSMIPOSTCOMMAND;
#pragma pack(1)
/* Data returned by IOCTL_VIDEO_VBVA_ENABLE. */
typedef struct _VBVAENABLERESULT
{
/* Pointer to VBVAMemory part of VMMDev memory region. */
VBVAMEMORY *pVbvaMemory;
/* Called to force the host to process VBVA memory,
* when there is no more free space in VBVA memory.
* Normally this never happens.
*
* The other purpose is to perform a synchronous command.
* But the goal is to have no such commands at all.
*/
DECLR0CALLBACKMEMBER(void, pfnFlush, (void *pvFlush));
/* Pointer required by the pfnFlush callback. */
void *pvFlush;
} VBVAENABLERESULT;
/* Data returned by IOCTL_VIDEO_HGSMI_QUERY_PORTPROCS. */
typedef struct _HGSMIQUERYCPORTPROCS
{
PVOID pContext;
VBOXVIDEOPORTPROCS VideoPortProcs;
} HGSMIQUERYCPORTPROCS;
/** Data returned by IOCTL_VIDEO_HGSMI_QUERY_CALLBACKS. */
typedef struct _HGSMIQUERYCALLBACKS
{
HVBOXVIDEOHGSMI hContext;
PFNVBOXVIDEOHGSMICOMPLETION pfnCompletionHandler;
PFNVBOXVIDEOHGSMICOMMANDS pfnRequestCommandsHandler;
} HGSMIQUERYCALLBACKS;
/* Data returned by IOCTL_VIDEO_QUERY_HGSMI_INFO. */
typedef struct _QUERYHGSMIRESULT
{
/* Device index (0 for primary) */
ULONG iDevice;
/* Flags. Currently none are defined and the field must be initialized to 0. */
ULONG ulFlags;
/* Describes VRAM chunk for this display device. */
HGSMIAREA areaDisplay;
/* Size of the display information area. */
uint32_t u32DisplayInfoSize;
/* Minimum size of the VBVA buffer. */
uint32_t u32MinVBVABufferSize;
/* IO port to submit guest HGSMI commands. */
RTIOPORT IOPortGuestCommand;
} QUERYHGSMIRESULT;
/* Data passed to IOCTL_VIDEO_HGSMI_HANDLER_ENABLE. */
typedef struct _HGSMIHANDLERENABLE
{
uint8_t u8Channel;
} HGSMIHANDLERENABLE;
#ifdef VBOX_WITH_VIDEOHWACCEL
/* Data returned by IOCTL_VIDEO_VHWA_QUERY_INFO. */
typedef struct _VHWAQUERYINFO
{
ULONG_PTR offVramBase;
} VHWAQUERYINFO;
#endif
#pragma pack()
/* IOCTL_VIDEO_QUERY_INFO */
#define VBOXVIDEO_INFO_LEVEL_REGISTRY_FLAGS 1
#define VBOXVIDEO_REGISTRY_FLAGS_DISABLE_BITMAP_CACHE 0x00000001
#endif /* !GA_INCLUDED_SRC_WINNT_Graphics_Video_common_xpdm_VBoxVideoIOCTL_h */
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