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/* $Id: VBoxVideoVBE.h $ */
/** @file
* VirtualBox graphics card port I/O definitions
*/
/*
* Copyright (C) 2006-2020 Oracle Corporation
*
* 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 AUTHORS OR COPYRIGHT
* HOLDERS 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.
*/
#ifndef VBOX_INCLUDED_Graphics_VBoxVideoVBE_h
#define VBOX_INCLUDED_Graphics_VBoxVideoVBE_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
/* GUEST <-> HOST Communication API */
/** @todo FIXME: Either dynamicly ask host for this or put somewhere high in
* physical memory like 0xE0000000. */
#define VBE_DISPI_BANK_ADDRESS 0xA0000
#define VBE_DISPI_BANK_SIZE_KB 64
#define VBE_DISPI_MAX_XRES 16384
#define VBE_DISPI_MAX_YRES 16384
#define VBE_DISPI_MAX_BPP 32
#define VBE_DISPI_IOPORT_INDEX 0x01CE
#define VBE_DISPI_IOPORT_DATA 0x01CF
#define VBE_DISPI_IOPORT_DAC_WRITE_INDEX 0x03C8
#define VBE_DISPI_IOPORT_DAC_DATA 0x03C9
/* Cross reference with src/VBox/Devices/Graphics/DevVGA.h */
#define VBE_DISPI_INDEX_ID 0x0
#define VBE_DISPI_INDEX_XRES 0x1
#define VBE_DISPI_INDEX_YRES 0x2
#define VBE_DISPI_INDEX_BPP 0x3
#define VBE_DISPI_INDEX_ENABLE 0x4
#define VBE_DISPI_INDEX_BANK 0x5
#define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
#define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
#define VBE_DISPI_INDEX_X_OFFSET 0x8
#define VBE_DISPI_INDEX_Y_OFFSET 0x9
#define VBE_DISPI_INDEX_VBOX_VIDEO 0xa
#define VBE_DISPI_INDEX_FB_BASE_HI 0xb
#define VBE_DISPI_INDEX_CFG 0xc
#define VBE_DISPI_ID0 0xB0C0
#define VBE_DISPI_ID1 0xB0C1
#define VBE_DISPI_ID2 0xB0C2
#define VBE_DISPI_ID3 0xB0C3
#define VBE_DISPI_ID4 0xB0C4
#define VBE_DISPI_ID_VBOX_VIDEO 0xBE00
/* The VBOX interface id. Indicates support for VBVA shared memory interface. */
#define VBE_DISPI_ID_HGSMI 0xBE01
#define VBE_DISPI_ID_ANYX 0xBE02
#define VBE_DISPI_ID_CFG 0xBE03 /* VBE_DISPI_INDEX_CFG is available. */
#define VBE_DISPI_DISABLED 0x00
#define VBE_DISPI_ENABLED 0x01
#define VBE_DISPI_GETCAPS 0x02
#define VBE_DISPI_8BIT_DAC 0x20
/** @note this definition is a BOCHS legacy, used only in the video BIOS
* code and ignored by the emulated hardware. */
#define VBE_DISPI_LFB_ENABLED 0x40
#define VBE_DISPI_NOCLEARMEM 0x80
/* VBE_DISPI_INDEX_CFG content. */
#define VBE_DISPI_CFG_MASK_ID 0x0FFF /* Identifier of a configuration value. */
#define VBE_DISPI_CFG_MASK_SUPPORT 0x1000 /* Query whether the identifier is supported. */
#define VBE_DISPI_CFG_MASK_RESERVED 0xE000 /* For future extensions. Must be 0. */
/* VBE_DISPI_INDEX_CFG values. */
#define VBE_DISPI_CFG_ID_VERSION 0x0000 /* Version of the configuration interface. */
#define VBE_DISPI_CFG_ID_VRAM_SIZE 0x0001 /* VRAM size. */
#define VBE_DISPI_CFG_ID_3D 0x0002 /* 3D support. */
#define VBE_DISPI_CFG_ID_VMSVGA 0x0003 /* VMSVGA FIFO and ports are available. */
#define VGA_PORT_HGSMI_HOST 0x3b0
#define VGA_PORT_HGSMI_GUEST 0x3d0
#endif /* !VBOX_INCLUDED_Graphics_VBoxVideoVBE_h */
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