| 1 | /* $Id: VBoxVideoVBE.h 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VirtualBox graphics card port I/O definitions
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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| 17 | *
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| 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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| 20 | *
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| 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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| 29 | */
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| 30 |
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| 31 | #ifndef VBOX_INCLUDED_Graphics_VBoxVideoVBE_h
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| 32 | #define VBOX_INCLUDED_Graphics_VBoxVideoVBE_h
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| 33 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 34 | # pragma once
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| 35 | #endif
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| 36 |
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| 37 | /* GUEST <-> HOST Communication API */
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| 38 |
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| 39 | /** @todo FIXME: Either dynamicly ask host for this or put somewhere high in
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| 40 | * physical memory like 0xE0000000. */
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| 41 |
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| 42 | #define VBE_DISPI_BANK_ADDRESS 0xA0000
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| 43 | #define VBE_DISPI_BANK_SIZE_KB 64
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| 44 |
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| 45 | #define VBE_DISPI_MAX_XRES 16384
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| 46 | #define VBE_DISPI_MAX_YRES 16384
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| 47 | #define VBE_DISPI_MAX_BPP 32
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| 48 |
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| 49 | #define VBE_DISPI_IOPORT_INDEX 0x01CE
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| 50 | #define VBE_DISPI_IOPORT_DATA 0x01CF
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| 51 |
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| 52 | #define VBE_DISPI_IOPORT_DAC_WRITE_INDEX 0x03C8
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| 53 | #define VBE_DISPI_IOPORT_DAC_DATA 0x03C9
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| 54 |
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| 55 | /* Cross reference with src/VBox/Devices/Graphics/DevVGA.h */
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| 56 | #define VBE_DISPI_INDEX_ID 0x0
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| 57 | #define VBE_DISPI_INDEX_XRES 0x1
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| 58 | #define VBE_DISPI_INDEX_YRES 0x2
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| 59 | #define VBE_DISPI_INDEX_BPP 0x3
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| 60 | #define VBE_DISPI_INDEX_ENABLE 0x4
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| 61 | #define VBE_DISPI_INDEX_BANK 0x5
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| 62 | #define VBE_DISPI_INDEX_VIRT_WIDTH 0x6
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| 63 | #define VBE_DISPI_INDEX_VIRT_HEIGHT 0x7
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| 64 | #define VBE_DISPI_INDEX_X_OFFSET 0x8
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| 65 | #define VBE_DISPI_INDEX_Y_OFFSET 0x9
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| 66 | #define VBE_DISPI_INDEX_VBOX_VIDEO 0xa
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| 67 | #define VBE_DISPI_INDEX_FB_BASE_HI 0xb
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| 68 | #define VBE_DISPI_INDEX_CFG 0xc
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| 69 |
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| 70 | #define VBE_DISPI_ID0 0xB0C0
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| 71 | #define VBE_DISPI_ID1 0xB0C1
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| 72 | #define VBE_DISPI_ID2 0xB0C2
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| 73 | #define VBE_DISPI_ID3 0xB0C3
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| 74 | #define VBE_DISPI_ID4 0xB0C4
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| 75 |
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| 76 | #define VBE_DISPI_ID_VBOX_VIDEO 0xBE00
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| 77 | /* The VBOX interface id. Indicates support for VBVA shared memory interface. */
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| 78 | #define VBE_DISPI_ID_HGSMI 0xBE01
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| 79 | #define VBE_DISPI_ID_ANYX 0xBE02
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| 80 | #define VBE_DISPI_ID_CFG 0xBE03 /* VBE_DISPI_INDEX_CFG is available. */
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| 81 |
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| 82 | #define VBE_DISPI_DISABLED 0x00
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| 83 | #define VBE_DISPI_ENABLED 0x01
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| 84 | #define VBE_DISPI_GETCAPS 0x02
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| 85 | #define VBE_DISPI_8BIT_DAC 0x20
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| 86 | /** @note this definition is a BOCHS legacy, used only in the video BIOS
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| 87 | * code and ignored by the emulated hardware. */
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| 88 | #define VBE_DISPI_LFB_ENABLED 0x40
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| 89 | #define VBE_DISPI_NOCLEARMEM 0x80
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| 90 |
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| 91 | /* VBE_DISPI_INDEX_CFG content. */
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| 92 | #define VBE_DISPI_CFG_MASK_ID 0x0FFF /* Identifier of a configuration value. */
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| 93 | #define VBE_DISPI_CFG_MASK_SUPPORT 0x1000 /* Query whether the identifier is supported. */
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| 94 | #define VBE_DISPI_CFG_MASK_RESERVED 0xE000 /* For future extensions. Must be 0. */
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| 95 |
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| 96 | /* VBE_DISPI_INDEX_CFG values. */
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| 97 | #define VBE_DISPI_CFG_ID_VERSION 0x0000 /* Version of the configuration interface. */
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| 98 | #define VBE_DISPI_CFG_ID_VRAM_SIZE 0x0001 /* VRAM size. */
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| 99 | #define VBE_DISPI_CFG_ID_3D 0x0002 /* 3D support. */
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| 100 | #define VBE_DISPI_CFG_ID_VMSVGA 0x0003 /* VMSVGA FIFO and ports are available. */
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| 101 | #define VBE_DISPI_CFG_ID_VMSVGA_DX 0x0004 /* VGPU10 is enabled. */
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| 102 |
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| 103 | #define VGA_PORT_HGSMI_HOST 0x3b0
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| 104 | #define VGA_PORT_HGSMI_GUEST 0x3d0
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| 105 |
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| 106 | #endif /* !VBOX_INCLUDED_Graphics_VBoxVideoVBE_h */
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| 107 |
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