1*58a2b000SEvgeniy Ivanov /* $NetBSD: vbe.h,v 1.3 2011/02/09 04:37:54 jmcneill Exp $ */ 2*58a2b000SEvgeniy Ivanov 3*58a2b000SEvgeniy Ivanov /*- 4*58a2b000SEvgeniy Ivanov * Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca> 5*58a2b000SEvgeniy Ivanov * All rights reserved. 6*58a2b000SEvgeniy Ivanov * 7*58a2b000SEvgeniy Ivanov * Redistribution and use in source and binary forms, with or without 8*58a2b000SEvgeniy Ivanov * modification, are permitted provided that the following conditions 9*58a2b000SEvgeniy Ivanov * are met: 10*58a2b000SEvgeniy Ivanov * 1. Redistributions of source code must retain the above copyright 11*58a2b000SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer. 12*58a2b000SEvgeniy Ivanov * 2. Redistributions in binary form must reproduce the above copyright 13*58a2b000SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer in the 14*58a2b000SEvgeniy Ivanov * documentation and/or other materials provided with the distribution. 15*58a2b000SEvgeniy Ivanov * 16*58a2b000SEvgeniy Ivanov * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17*58a2b000SEvgeniy Ivanov * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18*58a2b000SEvgeniy Ivanov * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19*58a2b000SEvgeniy Ivanov * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20*58a2b000SEvgeniy Ivanov * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21*58a2b000SEvgeniy Ivanov * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22*58a2b000SEvgeniy Ivanov * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23*58a2b000SEvgeniy Ivanov * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24*58a2b000SEvgeniy Ivanov * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25*58a2b000SEvgeniy Ivanov * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26*58a2b000SEvgeniy Ivanov * POSSIBILITY OF SUCH DAMAGE. 27*58a2b000SEvgeniy Ivanov */ 28*58a2b000SEvgeniy Ivanov 29*58a2b000SEvgeniy Ivanov #define VBE_DEFAULT_MODE 0x101 /* 640x480x8 */ 30*58a2b000SEvgeniy Ivanov 31*58a2b000SEvgeniy Ivanov struct vbeinfoblock { 32*58a2b000SEvgeniy Ivanov char VbeSignature[4]; 33*58a2b000SEvgeniy Ivanov uint16_t VbeVersion; 34*58a2b000SEvgeniy Ivanov uint32_t OemStringPtr; 35*58a2b000SEvgeniy Ivanov uint32_t Capabilities; 36*58a2b000SEvgeniy Ivanov uint32_t VideoModePtr; 37*58a2b000SEvgeniy Ivanov uint16_t TotalMemory; 38*58a2b000SEvgeniy Ivanov uint16_t OemSoftwareRev; 39*58a2b000SEvgeniy Ivanov uint32_t OemVendorNamePtr, OemProductNamePtr, OemProductRevPtr; 40*58a2b000SEvgeniy Ivanov /* data area, in total max 512 bytes for VBE 2.0 */ 41*58a2b000SEvgeniy Ivanov uint8_t Reserved[222]; 42*58a2b000SEvgeniy Ivanov uint8_t OemData[256]; 43*58a2b000SEvgeniy Ivanov } __packed; 44*58a2b000SEvgeniy Ivanov 45*58a2b000SEvgeniy Ivanov struct modeinfoblock { 46*58a2b000SEvgeniy Ivanov /* Mandatory information for all VBE revisions */ 47*58a2b000SEvgeniy Ivanov uint16_t ModeAttributes; 48*58a2b000SEvgeniy Ivanov uint8_t WinAAttributes, WinBAttributes; 49*58a2b000SEvgeniy Ivanov uint16_t WinGranularity, WinSize, WinASegment, WinBSegment; 50*58a2b000SEvgeniy Ivanov uint32_t WinFuncPtr; 51*58a2b000SEvgeniy Ivanov uint16_t BytesPerScanLine; 52*58a2b000SEvgeniy Ivanov /* Mandatory information for VBE 1.2 and above */ 53*58a2b000SEvgeniy Ivanov uint16_t XResolution, YResolution; 54*58a2b000SEvgeniy Ivanov uint8_t XCharSize, YCharSize, NumberOfPlanes, BitsPerPixel; 55*58a2b000SEvgeniy Ivanov uint8_t NumberOfBanks, MemoryModel, BankSize, NumberOfImagePages; 56*58a2b000SEvgeniy Ivanov uint8_t Reserved1; 57*58a2b000SEvgeniy Ivanov /* Direct Color fields 58*58a2b000SEvgeniy Ivanov (required for direct/6 and YUV/7 memory models) */ 59*58a2b000SEvgeniy Ivanov uint8_t RedMaskSize, RedFieldPosition; 60*58a2b000SEvgeniy Ivanov uint8_t GreenMaskSize, GreenFieldPosition; 61*58a2b000SEvgeniy Ivanov uint8_t BlueMaskSize, BlueFieldPosition; 62*58a2b000SEvgeniy Ivanov uint8_t RsvdMaskSize, RsvdFieldPosition; 63*58a2b000SEvgeniy Ivanov uint8_t DirectColorModeInfo; 64*58a2b000SEvgeniy Ivanov /* Mandatory information for VBE 2.0 and above */ 65*58a2b000SEvgeniy Ivanov uint32_t PhysBasePtr; 66*58a2b000SEvgeniy Ivanov uint32_t OffScreenMemOffset; /* reserved in VBE 3.0 and above */ 67*58a2b000SEvgeniy Ivanov uint16_t OffScreenMemSize; /* reserved in VBE 3.0 and above */ 68*58a2b000SEvgeniy Ivanov 69*58a2b000SEvgeniy Ivanov /* Mandatory information for VBE 3.0 and above */ 70*58a2b000SEvgeniy Ivanov uint16_t LinBytesPerScanLine; 71*58a2b000SEvgeniy Ivanov uint8_t BnkNumberOfImagePages; 72*58a2b000SEvgeniy Ivanov uint8_t LinNumberOfImagePages; 73*58a2b000SEvgeniy Ivanov uint8_t LinRedMaskSize, LinRedFieldPosition; 74*58a2b000SEvgeniy Ivanov uint8_t LinGreenMaskSize, LinGreenFieldPosition; 75*58a2b000SEvgeniy Ivanov uint8_t LinBlueMaskSize, LinBlueFieldPosition; 76*58a2b000SEvgeniy Ivanov uint8_t LinRsvdMaskSize, LinRsvdFieldPosition; 77*58a2b000SEvgeniy Ivanov uint32_t MaxPixelClock; 78*58a2b000SEvgeniy Ivanov uint8_t Reserved4[189]; 79*58a2b000SEvgeniy Ivanov } __packed; 80*58a2b000SEvgeniy Ivanov 81*58a2b000SEvgeniy Ivanov struct paletteentry { 82*58a2b000SEvgeniy Ivanov uint8_t Blue; 83*58a2b000SEvgeniy Ivanov uint8_t Green; 84*58a2b000SEvgeniy Ivanov uint8_t Red; 85*58a2b000SEvgeniy Ivanov uint8_t Alignment; 86*58a2b000SEvgeniy Ivanov } __packed; 87*58a2b000SEvgeniy Ivanov 88*58a2b000SEvgeniy Ivanov /* EDID */ 89*58a2b000SEvgeniy Ivanov #define EDID_MAGIC { 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00 } 90*58a2b000SEvgeniy Ivanov #define EDID_DESC_BLOCK 0x36 91*58a2b000SEvgeniy Ivanov 92*58a2b000SEvgeniy Ivanov /* low-level VBE calls, from biosvbe.S */ 93*58a2b000SEvgeniy Ivanov int biosvbe_info(struct vbeinfoblock *); 94*58a2b000SEvgeniy Ivanov int biosvbe_set_mode(int); 95*58a2b000SEvgeniy Ivanov int biosvbe_get_mode_info(int, struct modeinfoblock *); 96*58a2b000SEvgeniy Ivanov int biosvbe_palette_format(int); 97*58a2b000SEvgeniy Ivanov int biosvbe_palette_data(int, int, struct paletteentry *); 98*58a2b000SEvgeniy Ivanov int biosvbe_ddc_caps(void); 99*58a2b000SEvgeniy Ivanov int biosvbe_ddc_read_edid(int, void *); 100*58a2b000SEvgeniy Ivanov 101*58a2b000SEvgeniy Ivanov /* high-level VBE helpers, from vbe.c */ 102*58a2b000SEvgeniy Ivanov void vbe_init(void); 103*58a2b000SEvgeniy Ivanov int vbe_commit(void); 104*58a2b000SEvgeniy Ivanov int vbe_available(void); 105*58a2b000SEvgeniy Ivanov int vbe_set_mode(int); 106*58a2b000SEvgeniy Ivanov int vbe_set_palette(const uint8_t *, int); 107*58a2b000SEvgeniy Ivanov void vbe_modelist(void); 108*58a2b000SEvgeniy Ivanov 109*58a2b000SEvgeniy Ivanov void command_vesa(char *); 110*58a2b000SEvgeniy Ivanov 111*58a2b000SEvgeniy Ivanov /* adjust physical address; boot code runs with %ds having a 64k offset */ 112*58a2b000SEvgeniy Ivanov #define VBEPHYPTR(x) ((uint8_t *)((x) - (64 * 1024))) 113