1 /*- 2 * Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 15 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 16 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24 * POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /* 28 * Default mode for VESA frame buffer. 29 * This mode is selected when there is no EDID inormation and 30 * mode is not provided by user. 31 * To provide consistent look with UEFI GOP, we use 800x600 here, 32 * and if this mode is not available, we fall back to text mode and 33 * VESA disabled. 34 */ 35 36 #ifndef _VBE_H 37 #define _VBE_H 38 39 #define VBE_DEFAULT_MODE "800x600" 40 41 struct vbeinfoblock { 42 char VbeSignature[4]; 43 uint16_t VbeVersion; 44 uint32_t OemStringPtr; 45 uint32_t Capabilities; 46 #define VBE_CAP_DAC8 (1 << 0) /* Can switch DAC */ 47 #define VBE_CAP_NONVGA (1 << 1) /* Controller is not VGA comp. */ 48 #define VBE_CAP_SNOW (1 << 2) /* Set data during Vertical Reterace */ 49 uint32_t VideoModePtr; 50 uint16_t TotalMemory; 51 uint16_t OemSoftwareRev; 52 uint32_t OemVendorNamePtr, OemProductNamePtr, OemProductRevPtr; 53 /* data area, in total max 512 bytes for VBE 2.0 */ 54 uint8_t Reserved[222]; 55 uint8_t OemData[256]; 56 } __packed; 57 58 struct modeinfoblock { 59 /* Mandatory information for all VBE revisions */ 60 uint16_t ModeAttributes; 61 uint8_t WinAAttributes, WinBAttributes; 62 uint16_t WinGranularity, WinSize, WinASegment, WinBSegment; 63 uint32_t WinFuncPtr; 64 uint16_t BytesPerScanLine; 65 /* Mandatory information for VBE 1.2 and above */ 66 uint16_t XResolution, YResolution; 67 uint8_t XCharSize, YCharSize, NumberOfPlanes, BitsPerPixel; 68 uint8_t NumberOfBanks, MemoryModel, BankSize, NumberOfImagePages; 69 uint8_t Reserved1; 70 /* 71 * Direct Color fields 72 * (required for direct/6 and YUV/7 memory models) 73 */ 74 uint8_t RedMaskSize, RedFieldPosition; 75 uint8_t GreenMaskSize, GreenFieldPosition; 76 uint8_t BlueMaskSize, BlueFieldPosition; 77 uint8_t RsvdMaskSize, RsvdFieldPosition; 78 uint8_t DirectColorModeInfo; 79 /* Mandatory information for VBE 2.0 and above */ 80 uint32_t PhysBasePtr; 81 uint32_t OffScreenMemOffset; /* reserved in VBE 3.0 and above */ 82 uint16_t OffScreenMemSize; /* reserved in VBE 3.0 and above */ 83 84 /* Mandatory information for VBE 3.0 and above */ 85 uint16_t LinBytesPerScanLine; 86 uint8_t BnkNumberOfImagePages; 87 uint8_t LinNumberOfImagePages; 88 uint8_t LinRedMaskSize, LinRedFieldPosition; 89 uint8_t LinGreenMaskSize, LinGreenFieldPosition; 90 uint8_t LinBlueMaskSize, LinBlueFieldPosition; 91 uint8_t LinRsvdMaskSize, LinRsvdFieldPosition; 92 uint32_t MaxPixelClock; 93 /* + 1 will fix the size to 256 bytes */ 94 uint8_t Reserved4[189 + 1]; 95 } __packed; 96 97 struct crtciinfoblock { 98 uint16_t HorizontalTotal; 99 uint16_t HorizontalSyncStart; 100 uint16_t HorizontalSyncEnd; 101 uint16_t VerticalTotal; 102 uint16_t VerticalSyncStart; 103 uint16_t VerticalSyncEnd; 104 uint8_t Flags; 105 uint32_t PixelClock; 106 uint16_t RefreshRate; 107 uint8_t Reserved[40]; 108 } __packed; 109 110 struct paletteentry { 111 uint8_t Blue; 112 uint8_t Green; 113 uint8_t Red; 114 uint8_t Reserved; 115 } __packed; 116 117 struct flatpanelinfo 118 { 119 uint16_t HorizontalSize; /* Horizontal Size in Pixels */ 120 uint16_t VerticalSize; /* Vertical Size in Lines */ 121 uint16_t PanelType; /* Flat Panel Type */ 122 uint8_t RedBPP; /* Red Bits Per Primary */ 123 uint8_t GreenBPP; /* Green Bits Per Primary */ 124 uint8_t BlueBPP; /* Blue Bits Per Primary */ 125 uint8_t ReservedBPP; /* Reserved Bits Per Primary */ 126 uint32_t RsvdOffScreenMemSize; /* Size in KB of Offscreen Memory */ 127 uint32_t RsvdOffScreenMemPtr; /* Pointer to reserved offscreen memory */ 128 uint8_t Reserved[14]; /* remainder of FPInfo */ 129 } __packed; 130 131 #define VBE_BASE_MODE (0x100) /* VBE 3.0 page 18 */ 132 #define VBE_VALID_MODE(a) ((a) >= VBE_BASE_MODE) 133 #define VBE_ERROR(a) (((a) & 0xFF) != 0x4F || ((a) & 0xFF00) != 0) 134 #define VBE_SUCCESS (0x004F) 135 #define VBE_FAILED (0x014F) 136 #define VBE_NOTSUP (0x024F) 137 #define VBE_INVALID (0x034F) 138 139 #define VGA_TEXT_MODE (3) /* 80x25 text mode */ 140 #define TEXT_ROWS (25) /* VGATEXT rows */ 141 #define TEXT_COLS (80) /* VGATEXT columns */ 142 143 #define CMAP_SIZE 256 /* Number of colors in palette */ 144 145 extern struct paletteentry pe8[CMAP_SIZE]; 146 extern int palette_format; 147 148 /* high-level VBE helpers, from vbe.c */ 149 void bios_set_text_mode(int); 150 int biosvbe_palette_format(int *); 151 void vbe_init(void); 152 int vbe_available(void); 153 int vbe_default_mode(void); 154 int vbe_set_mode(int); 155 int vbe_get_mode(void); 156 int vbe_set_palette(const struct paletteentry *, size_t); 157 void vbe_modelist(int); 158 159 #endif /* _VBE_H */ 160