Annotation of sys/dev/vesa/vbe.h, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 2007 Gordon Willem Klok <gwk@openbsd.org>
! 3: *
! 4: * Permission to use, copy, modify, and distribute this software for any
! 5: * purpose with or without fee is hereby granted, provided that the above
! 6: * copyright notice and this permission notice appear in all copies.
! 7: *
! 8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 15: */
! 16:
! 17: /*
! 18: * Information taken from VESA Bios Extention (VBE) Core Functions Standard
! 19: * Version 3.0 found at http://www.vesa.org/public/VBE/vbe3.pdf
! 20: */
! 21: #ifndef VBE_H
! 22: #define VBE_H
! 23:
! 24: #define BIOS_VIDEO_INTR 0x10
! 25:
! 26: /* A well know address to locate a page at in the vm86 task */
! 27: #define KVM86_CALL_TASKVA 0x2000
! 28:
! 29: /* Information contained in AH following a VBE function call */
! 30: /* Low byte determins call support */
! 31: #define VBECALL_SUPPORT(v) (v & 0xff)
! 32: #define VBECALL_SUPPORTED 0x4f
! 33:
! 34: /* High byte determins call sucess */
! 35: #define VBECALL_SUCESS(v) (v >> 8 & 0xFF)
! 36: #define VBECALL_SUCCEDED 0x00
! 37: #define VBECALL_FAILED 0x01
! 38: #define VBECALL_MISMATCH 0x02 /* BIOS SUPPORTS HW DOES NOT */
! 39: #define VBECALL_INVALID 0x03 /* INVALID IN CURRENT MODE */
! 40:
! 41: /* VBE Standard Function Calls */
! 42: #define VBE_FUNC_CTRLINFO 0x4F00
! 43: #define VBE_FUNC_MODEINFO 0x4F01
! 44: #define VBE_FUNC_SETMODE 0x4F02
! 45: #define VBE_FUNC_GETMODE 0x4F03
! 46: #define VBE_FUNC_SAVEREST 0x4F04
! 47: #define VBE_FUNC_DWC 0x4F05 /* Display window control */
! 48: #define VBE_FUNC_LSLL 0x4F06 /* Logical Scan Line Length */
! 49: #define VBE_FUNC_START 0x4F07 /* Set/Get Display Start */
! 50: #define VBE_FUNC_DAC 0x4F08 /* Set/Get DAC Pallete Format */
! 51: #define VBE_FUNC_PALETTE 0x4F09 /* Set/Get Pallete Data */
! 52: #define VBE_FUNC_PMI 0x4F0A /* Protected Mode Interface */
! 53: #define VBE_FUNC_PIXELCLOCK 0x4F0B
! 54:
! 55: /* VBE Supplemental Function Calls */
! 56: #define VBE_FUNC_PM 0x4F10 /* Power Management Interface */
! 57: #define VBE_FUNC_FLATPANEL 0x4F11 /* Flat Panel Interface */
! 58: #define VBE_FUNC_AUDIO 0x4F13 /* Audio Interface */
! 59: #define VBE_FUNC_OEM 0x4F14 /* OEM Extentions */
! 60: #define VBE_FUNC_DDC 0x4F15 /* Display Data Channel (DDC) */
! 61:
! 62: #define VBE_CTRLINFO_VERSION(v) (v >> 8)
! 63: #define VBE_CTRLINFO_REVISION(v) (v & 0xff)
! 64: #define VBE_DDC_GET 0x01
! 65:
! 66: struct edid_chroma {
! 67: uint8_t chroma_rglow;
! 68: uint8_t chroma_bwlow;
! 69: uint8_t chroma_redx;
! 70: uint8_t chroma_redy;
! 71: uint8_t chroma_greenx;
! 72: uint8_t chroma_greeny;
! 73: uint8_t chroma_bluex;
! 74: uint8_t chroma_bluey;
! 75: uint8_t chroma_whitex;
! 76: uint8_t chroma_whitey;
! 77: } __packed;
! 78:
! 79: struct edid_db {
! 80: uint16_t db_pixelclock;
! 81: uint8_t db_stor[16];
! 82: } __packed;
! 83:
! 84: #define EDID_DB_FLAG_INTERLACED 0x80
! 85: #define EDID_DB_FLAG_STEREO 0x10
! 86: #define EDID_DB_POSITIVE_HSYNC 0x04
! 87: #define EDID_DB_POSITIVE_VSYNC 0x02
! 88:
! 89: /* Types of Descriptor Blocks */
! 90: #define EDID_DB_BT_MONSERIAL 0xff
! 91: #define EDID_DB_BT_ASCIISTR 0xfe
! 92: #define EDID_DB_BT_RANGELIMITS 0xfd
! 93: #define EDID_DB_BT_MONITORNAME 0xfc
! 94: #define EDID_DB_BT_COLORPOINT 0xfb
! 95: #define EDID_DB_BT_STDTIMEDATA 0xfa
! 96: #define EDID_DB_BT_UNDEF 0xf9
! 97: #define EDID_DB_BT_MANUFDEF 0xf8
! 98:
! 99: struct edid_ranges {
! 100: uint8_t range_minvertfreq;
! 101: uint8_t range_maxvertfreq;
! 102: uint8_t range_minhorizfreq;
! 103: uint8_t range_maxhorizfreq;
! 104: uint8_t range_pixelclock;
! 105: uint16_t range_secgtftoggle;
! 106: uint8_t range_starthorizfreq;
! 107: uint8_t range_c;
! 108: uint16_t range_m;
! 109: uint16_t range_k;
! 110: uint16_t range_y;
! 111: } __packed;
! 112:
! 113: struct edid_timing {
! 114: uint8_t timing_estb1;
! 115: uint8_t timing_estb2;
! 116: uint8_t timing_manu;
! 117: uint16_t timing_std1;
! 118: uint16_t timing_std2;
! 119: uint16_t timing_std3;
! 120: uint16_t timing_std4;
! 121: uint16_t timing_std5;
! 122: uint16_t timing_std6;
! 123: uint16_t timing_std7;
! 124: uint16_t timing_std8;
! 125: } __packed;
! 126:
! 127: struct edid {
! 128: uint8_t edid_header[8];
! 129: uint16_t edid_manufacture;
! 130: uint16_t edid_product;
! 131: uint32_t edid_serialno;
! 132: uint8_t edid_week;
! 133: uint8_t edid_year;
! 134: uint8_t edid_version;
! 135: uint8_t edid_revision;
! 136: uint8_t edid_vidid;
! 137: uint8_t edid_maxhoriz_isize;
! 138: uint8_t edid_maxvert_isize;
! 139: uint8_t edid_gamma;
! 140: uint8_t edid_pmfeatures;
! 141: struct edid_chroma edid_chroma;
! 142: struct edid_timing edid_timing;
! 143: struct edid_db edid_db1;
! 144: struct edid_db edid_db2;
! 145: struct edid_db edid_db3;
! 146: struct edid_db edid_db4;
! 147: uint8_t edid_extblocks;
! 148: uint8_t edid_chksum;
! 149: } __packed;
! 150:
! 151: #endif
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