diff options
Diffstat (limited to 'sys/dev/vesa/vbe.h')
| -rw-r--r-- | sys/dev/vesa/vbe.h | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/sys/dev/vesa/vbe.h b/sys/dev/vesa/vbe.h new file mode 100644 index 00000000000..9196866d7a8 --- /dev/null +++ b/sys/dev/vesa/vbe.h @@ -0,0 +1,151 @@ +/* + * Copyright (c) 2007 Gordon Willem Klok <gwk@openbsd.org> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Information taken from VESA Bios Extention (VBE) Core Functions Standard + * Version 3.0 found at http://www.vesa.org/public/VBE/vbe3.pdf + */ +#ifndef VBE_H +#define VBE_H + +#define BIOS_VIDEO_INTR 0x10 + +/* A well know address to locate a page at in the vm86 task */ +#define KVM86_CALL_TASKVA 0x2000 + +/* Information contained in AH following a VBE function call */ +/* Low byte determins call support */ +#define VBECALL_SUPPORT(v) (v & 0xff) +#define VBECALL_SUPPORTED 0x4f + +/* High byte determins call sucess */ +#define VBECALL_SUCESS(v) (v >> 8 & 0xFF) +#define VBECALL_SUCCEDED 0x00 +#define VBECALL_FAILED 0x01 +#define VBECALL_MISMATCH 0x02 /* BIOS SUPPORTS HW DOES NOT */ +#define VBECALL_INVALID 0x03 /* INVALID IN CURRENT MODE */ + +/* VBE Standard Function Calls */ +#define VBE_FUNC_CTRLINFO 0x4F00 +#define VBE_FUNC_MODEINFO 0x4F01 +#define VBE_FUNC_SETMODE 0x4F02 +#define VBE_FUNC_GETMODE 0x4F03 +#define VBE_FUNC_SAVEREST 0x4F04 +#define VBE_FUNC_DWC 0x4F05 /* Display window control */ +#define VBE_FUNC_LSLL 0x4F06 /* Logical Scan Line Length */ +#define VBE_FUNC_START 0x4F07 /* Set/Get Display Start */ +#define VBE_FUNC_DAC 0x4F08 /* Set/Get DAC Pallete Format */ +#define VBE_FUNC_PALETTE 0x4F09 /* Set/Get Pallete Data */ +#define VBE_FUNC_PMI 0x4F0A /* Protected Mode Interface */ +#define VBE_FUNC_PIXELCLOCK 0x4F0B + +/* VBE Supplemental Function Calls */ +#define VBE_FUNC_PM 0x4F10 /* Power Management Interface */ +#define VBE_FUNC_FLATPANEL 0x4F11 /* Flat Panel Interface */ +#define VBE_FUNC_AUDIO 0x4F13 /* Audio Interface */ +#define VBE_FUNC_OEM 0x4F14 /* OEM Extentions */ +#define VBE_FUNC_DDC 0x4F15 /* Display Data Channel (DDC) */ + +#define VBE_CTRLINFO_VERSION(v) (v >> 8) +#define VBE_CTRLINFO_REVISION(v) (v & 0xff) +#define VBE_DDC_GET 0x01 + +struct edid_chroma { + uint8_t chroma_rglow; + uint8_t chroma_bwlow; + uint8_t chroma_redx; + uint8_t chroma_redy; + uint8_t chroma_greenx; + uint8_t chroma_greeny; + uint8_t chroma_bluex; + uint8_t chroma_bluey; + uint8_t chroma_whitex; + uint8_t chroma_whitey; +} __packed; + +struct edid_db { + uint16_t db_pixelclock; + uint8_t db_stor[16]; +} __packed; + +#define EDID_DB_FLAG_INTERLACED 0x80 +#define EDID_DB_FLAG_STEREO 0x10 +#define EDID_DB_POSITIVE_HSYNC 0x04 +#define EDID_DB_POSITIVE_VSYNC 0x02 + +/* Types of Descriptor Blocks */ +#define EDID_DB_BT_MONSERIAL 0xff +#define EDID_DB_BT_ASCIISTR 0xfe +#define EDID_DB_BT_RANGELIMITS 0xfd +#define EDID_DB_BT_MONITORNAME 0xfc +#define EDID_DB_BT_COLORPOINT 0xfb +#define EDID_DB_BT_STDTIMEDATA 0xfa +#define EDID_DB_BT_UNDEF 0xf9 +#define EDID_DB_BT_MANUFDEF 0xf8 + +struct edid_ranges { + uint8_t range_minvertfreq; + uint8_t range_maxvertfreq; + uint8_t range_minhorizfreq; + uint8_t range_maxhorizfreq; + uint8_t range_pixelclock; + uint16_t range_secgtftoggle; + uint8_t range_starthorizfreq; + uint8_t range_c; + uint16_t range_m; + uint16_t range_k; + uint16_t range_y; +} __packed; + +struct edid_timing { + uint8_t timing_estb1; + uint8_t timing_estb2; + uint8_t timing_manu; + uint16_t timing_std1; + uint16_t timing_std2; + uint16_t timing_std3; + uint16_t timing_std4; + uint16_t timing_std5; + uint16_t timing_std6; + uint16_t timing_std7; + uint16_t timing_std8; +} __packed; + +struct edid { + uint8_t edid_header[8]; + uint16_t edid_manufacture; + uint16_t edid_product; + uint32_t edid_serialno; + uint8_t edid_week; + uint8_t edid_year; + uint8_t edid_version; + uint8_t edid_revision; + uint8_t edid_vidid; + uint8_t edid_maxhoriz_isize; + uint8_t edid_maxvert_isize; + uint8_t edid_gamma; + uint8_t edid_pmfeatures; + struct edid_chroma edid_chroma; + struct edid_timing edid_timing; + struct edid_db edid_db1; + struct edid_db edid_db2; + struct edid_db edid_db3; + struct edid_db edid_db4; + uint8_t edid_extblocks; + uint8_t edid_chksum; +} __packed; + +#endif |