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/* $NetBSD: edidreg.h,v 1.2 2006/05/13 00:39:19 gdamore Exp $ */
/*-
* Copyright (c) 2006 Itronix Inc.
* All rights reserved.
*
* Written by Garrett D'Amore for Itronix Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of Itronix Inc. may not be used to endorse
* or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ITRONIX INC. ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL ITRONIX INC. BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _DEV_VIDEOMODE_EDIDREG_H
#define _DEV_VIDEOMODE_EDIDREG_H
#define EDID_OFFSET_SIGNATURE 0x00
#define EDID_OFFSET_MANUFACTURER_ID 0x08
#define EDID_OFFSET_PRODUCT_ID 0x0a
#define EDID_OFFSET_SERIAL_NUMBER 0x0c
#define EDID_OFFSET_MANUFACTURE_WEEK 0x10
#define EDID_OFFSET_MANUFACTURE_YEAR 0x11
#define EDID_OFFSET_VERSION 0x12
#define EDID_OFFSET_REVISION 0x13
#define EDID_OFFSET_VIDEO_INPUT 0x14
#define EDID_OFFSET_MAX_HSIZE 0x15 /* in cm */
#define EDID_OFFSET_MAX_VSIZE 0x16
#define EDID_OFFSET_GAMMA 0x17
#define EDID_OFFSET_FEATURE 0x18
#define EDID_OFFSET_CHROMA 0x19
#define EDID_OFFSET_EST_TIMING_1 0x23
#define EDID_OFFSET_EST_TIMING_2 0x24
#define EDID_OFFSET_MFG_TIMING 0x25
#define EDID_OFFSET_STD_TIMING 0x26
#define EDID_OFFSET_DESC_BLOCK 0x36
#define EDID_SIGNATURE { 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0 }
/* assume x is 16-bit value */
#define EDID_VENDOR_ID(ptr) ((((ptr)[8]) << 8) + ptr[9])
#define EDID_MANFID_0(x) ((((x) >> 10) & 0x1f) + '@')
#define EDID_MANFID_1(x) ((((x) >> 5) & 0x1f) + '@')
#define EDID_MANFID_2(x) ((((x) >> 0) & 0x1f) + '@')
/* relative to edid block */
#define EDID_PRODUCT_ID(ptr) (((ptr)[10]) | (((ptr)[11]) << 8))
#define EDID_SERIAL_NUMBER(ptr) (((ptr)[12] << 24) + \
((ptr)[13] << 16) + \
((ptr)[14] << 8) + \
(ptr)[15])
/* relative to edid block */
#define EDID_WEEK(ptr) ((ptr)[16])
#define EDID_YEAR(ptr) (((ptr)[17]) + 1990)
#define EDID_VERSION(ptr) ((ptr)[18])
#define EDID_REVISION(ptr) ((ptr)[19])
#define EDID_VIDEO_INPUT(ptr) ((ptr)[20])
#define EDID_VIDEO_INPUT_DIGITAL 0x80
/* if INPUT_BIT_DIGITAL set */
#define EDID_VIDEO_INPUT_DFP1_COMPAT 0x01
/* if INPUT_BIT_DIGITAL not set */
#define EDID_VIDEO_INPUT_BLANK_TO_BLACK 0x10
#define EDID_VIDEO_INPUT_SEPARATE_SYNCS 0x08
#define EDID_VIDEO_INPUT_COMPOSITE_SYNC 0x04
#define EDID_VIDEO_INPUT_SYNC_ON_GRN 0x02
#define EDID_VIDEO_INPUT_SERRATION 0x01
#define EDID_VIDEO_INPUT_LEVEL(x) (((x) & 0x60) >> 5)
/* meanings of level bits are as follows, I don't know names */
/* 0 = 0.7,0.3, 1 = 0.714,0.286, 2 = 1.0,0.4, 3 = 0.7,0.0 */
/* relative to edid block */
#define EDID_MAX_HSIZE(ptr) ((ptr)[21]) /* cm */
#define EDID_MAX_VSIZE(ptr) ((ptr)[22]) /* cm */
/* gamma is scaled by 100 (avoid fp), e.g. 213 == 2.13 */
#define _GAMMA(x) ((x) == 0xff ? 100 : ((x) + 100))
#define EDID_GAMMA(ptr) _GAMMA(ptr[23])
#define EDID_FEATURES(ptr) ((ptr)[24])
#define EDID_FEATURES_STANDBY 0x80
#define EDID_FEATURES_SUSPEND 0x40
#define EDID_FEATURES_ACTIVE_OFF 0x20
#define EDID_FEATURES_DISP_TYPE(x) (((x) & 0x18) >> 3)
#define EDID_FEATURES_DISP_TYPE_MONO 0
#define EDID_FEATURES_DISP_TYPE_RGB 1
#define EDID_FEATURES_DISP_TYPE_NON_RGB 2
#define EDID_FEATURES_DISP_TYPE_UNDEFINED 3
#define EDID_FEATURES_STD_COLOR 0x04
#define EDID_FEATURES_PREFERRED_TIMING 0x02
#define EDID_FEATURES_DEFAULT_GTF 0x01
/* chroma values 0.0 - 0.999 scaled as 0-999 */
#define _CHLO(byt, shft) (((byt) >> (shft)) & 0x3)
#define _CHHI(byt) ((byt) << 2)
#define _CHHILO(ptr, l, s, h) (_CHLO((ptr)[l], s) | _CHHI((ptr)[h]))
#define _CHROMA(ptr, l, s, h) ((_CHHILO(ptr, l, s, h) * 1000) / 1024)
#define EDID_CHROMA_REDX(ptr) (_CHROMA(ptr, 25, 6, 27))
#define EDID_CHROMA_REDY(ptr) (_CHROMA(ptr, 25, 4, 28))
#define EDID_CHROMA_GREENX(ptr) (_CHROMA(ptr, 25, 2, 29))
#define EDID_CHROMA_GREENY(ptr) (_CHROMA(ptr, 25, 0, 30))
#define EDID_CHROMA_BLUEX(ptr) (_CHROMA(ptr, 26, 6, 31))
#define EDID_CHROMA_BLUEY(ptr) (_CHROMA(ptr, 26, 4, 32))
#define EDID_CHROMA_WHITEX(ptr) (_CHROMA(ptr, 26, 2, 33))
#define EDID_CHROMA_WHITEY(ptr) (_CHROMA(ptr, 26, 0, 34))
/* relative to edid block */
#define EDID_EST_TIMING(ptr) (((ptr)[35] << 8) | (ptr)[36])
#define EDID_EST_TIMING_720_400_70 0x8000 /* 720x400 @ 70Hz */
#define EDID_EST_TIMING_720_400_88 0x4000 /* 720x400 @ 88Hz */
#define EDID_EST_TIMING_640_480_60 0x2000 /* 640x480 @ 60Hz */
#define EDID_EST_TIMING_640_480_67 0x1000 /* 640x480 @ 67Hz */
#define EDID_EST_TIMING_640_480_72 0x0800 /* 640x480 @ 72Hz */
#define EDID_EST_TIMING_640_480_75 0x0400 /* 640x480 @ 75Hz */
#define EDID_EST_TIMING_800_600_56 0x0200 /* 800x600 @ 56Hz */
#define EDID_EST_TIMING_800_600_60 0x0100 /* 800x600 @ 60Hz */
#define EDID_EST_TIMING_800_600_72 0x0080 /* 800x600 @ 72Hz */
#define EDID_EST_TIMING_800_600_75 0x0040 /* 800x600 @ 75Hz */
#define EDID_EST_TIMING_832_624_75 0x0020 /* 832x624 @ 75Hz */
#define EDID_EST_TIMING_1024_768_87I 0x0010 /* 1024x768i @ 87Hz */
#define EDID_EST_TIMING_1024_768_60 0x0008 /* 1024x768 @ 60Hz */
#define EDID_EST_TIMING_1024_768_70 0x0004 /* 1024x768 @ 70Hz */
#define EDID_EST_TIMING_1024_768_75 0x0002 /* 1024x768 @ 75Hz */
#define EDID_EST_TIMING_1280_1024_75 0x0001 /* 1280x1024 @ 75Hz */
/*
* N.B.: ptr is relative to standard timing block - used for standard timing
* descriptors as well as standard timings section of edid!
*/
#define EDID_STD_TIMING_HRES(ptr) ((((ptr)[0]) * 8) + 248)
#define EDID_STD_TIMING_VFREQ(ptr) ((((ptr)[1]) & 0x3f) + 60)
#define EDID_STD_TIMING_RATIO(ptr) ((ptr)[1] & 0xc0)
#define EDID_STD_TIMING_RATIO_16_10 0x00
#define EDID_STD_TIMING_RATIO_4_3 0x40
#define EDID_STD_TIMING_RATIO_5_4 0x80
#define EDID_STD_TIMING_RATIO_16_9 0xc0
#define EDID_STD_TIMING_SIZE 16
#define EDID_STD_TIMING_COUNT 8
/*
* N.B.: ptr is relative to descriptor block start
*/
#define EDID_BLOCK_SIZE 18
#define EDID_BLOCK_COUNT 4
/* detailed timing block.... what a mess */
#define EDID_BLOCK_IS_DET_TIMING(ptr) ((ptr)[0] | (ptr)[1])
#define EDID_DET_TIMING_DOT_CLOCK(ptr) (((ptr)[0] | ((ptr)[1] << 8)) * 10000)
#define _HACT_LO(ptr) ((ptr)[2])
#define _HBLK_LO(ptr) ((ptr)[3])
#define _HACT_HI(ptr) (((ptr)[4] & 0xf0) << 4)
#define _HBLK_HI(ptr) (((ptr)[4] & 0x0f) << 8)
#define EDID_DET_TIMING_HACTIVE(ptr) (_HACT_LO(ptr) | _HACT_HI(ptr))
#define EDID_DET_TIMING_HBLANK(ptr) (_HBLK_LO(ptr) | _HBLK_HI(ptr))
#define _VACT_LO(ptr) ((ptr)[5])
#define _VBLK_LO(ptr) ((ptr)[6])
#define _VACT_HI(ptr) (((ptr)[7] & 0xf0) << 4)
#define _VBLK_HI(ptr) (((ptr)[7] & 0x0f) << 8)
#define EDID_DET_TIMING_VACTIVE(ptr) (_VACT_LO(ptr) | _VACT_HI(ptr))
#define EDID_DET_TIMING_VBLANK(ptr) (_VBLK_LO(ptr) | _VBLK_HI(ptr))
#define _HOFF_LO(ptr) ((ptr)[8])
#define _HWID_LO(ptr) ((ptr)[9])
#define _VOFF_LO(ptr) ((ptr)[10] >> 4)
#define _VWID_LO(ptr) ((ptr)[10] & 0xf)
#define _HOFF_HI(ptr) (((ptr)[11] & 0xc0) << 2)
#define _HWID_HI(ptr) (((ptr)[11] & 0x30) << 4)
#define _VOFF_HI(ptr) (((ptr)[11] & 0x0c) << 2)
#define _VWID_HI(ptr) (((ptr)[11] & 0x03) << 4)
#define EDID_DET_TIMING_HSYNC_OFFSET(ptr) (_HOFF_LO(ptr) | _HOFF_HI(ptr))
#define EDID_DET_TIMING_HSYNC_WIDTH(ptr) (_HWID_LO(ptr) | _HWID_HI(ptr))
#define EDID_DET_TIMING_VSYNC_OFFSET(ptr) (_VOFF_LO(ptr) | _VOFF_HI(ptr))
#define EDID_DET_TIMING_VSYNC_WIDTH(ptr) (_VWID_LO(ptr) | _VWID_HI(ptr))
#define _HSZ_LO(ptr) ((ptr)[12])
#define _VSZ_LO(ptr) ((ptr)[13])
#define _HSZ_HI(ptr) (((ptr)[14] & 0xf0) << 4)
#define _VSZ_HI(ptr) (((ptr)[14] & 0x0f) << 8)
#define EDID_DET_TIMING_HSIZE(ptr) (_HSZ_LO(ptr) | _HSZ_HI(ptr))
#define EDID_DET_TIMING_VSIZE(ptr) (_VSZ_LO(ptr) | _VSZ_HI(ptr))
#define EDID_DET_TIMING_HBORDER(ptr) ((ptr)[15])
#define EDID_DET_TIMING_VBORDER(ptr) ((ptr)[16])
#define EDID_DET_TIMING_FLAGS(ptr) ((ptr)[17])
#define EDID_DET_TIMING_FLAG_INTERLACE 0x80
#define EDID_DET_TIMING_FLAG_STEREO 0x60 /* wtf? */
#define EDID_DET_TIMING_FLAG_SYNC_SEPARATE 0x18
#define EDID_DET_TIMING_FLAG_HSYNC_POSITIVE 0x04
#define EDID_DET_TIMING_FLAG_VSYNC_POSITIVE 0x02
#define EDID_DET_TIMING_FLAG_STEREO1 0x01 /* wtf? */
/* N.B.: these tests assume that we already checked for detailed timing! */
#define EDID_BLOCK_TYPE(ptr) ((ptr)[3])
#define EDID_DESC_BLOCK_SIZE 18
#define EDID_DESC_BLOCK_TYPE_SERIAL 0xFF
#define EDID_DESC_BLOCK_TYPE_ASCII 0xFE
#define EDID_DESC_BLOCK_TYPE_RANGE 0xFD
#define EDID_DESC_BLOCK_TYPE_NAME 0xFC
#define EDID_DESC_BLOCK_TYPE_COLOR_POINT 0xFB
#define EDID_DESC_BLOCK_TYPE_STD_TIMING 0xFA
/* used for descriptors 0xFF, 0xFE, and 0xFC */
#define EDID_DESC_ASCII_DATA_OFFSET 5
#define EDID_DESC_ASCII_DATA_LEN 13
#define EDID_DESC_RANGE_MIN_VFREQ(ptr) ((ptr)[5]) /* Hz */
#define EDID_DESC_RANGE_MAX_VFREQ(ptr) ((ptr)[6]) /* Hz */
#define EDID_DESC_RANGE_MIN_HFREQ(ptr) ((ptr)[7]) /* kHz */
#define EDID_DESC_RANGE_MAX_HFREQ(ptr) ((ptr)[8]) /* kHz */
#define EDID_DESC_RANGE_MAX_CLOCK(ptr) (((ptr)[9]) * 10) /* MHz */
#define EDID_DESC_RANGE_HAVE_GTF2(ptr) (((ptr)[10]) == 0x02)
#define EDID_DESC_RANGE_GTF2_HFREQ(ptr) (((ptr)[12]) * 2)
#define EDID_DESC_RANGE_GTF2_C(ptr) (((ptr)[13]) / 2)
#define EDID_DESC_RANGE_GTF2_M(ptr) ((ptr)[14] + ((ptr)[15] << 8))
#define EDID_DESC_RANGE_GTF2_K(ptr) ((ptr)[16])
#define EDID_DESC_RANGE_GTF2_J(ptr) ((ptr)[17] / 2)
#define EDID_DESC_COLOR_WHITEX(ptr)
#define EDID_DESC_COLOR_WHITE_INDEX_1(ptr) ((ptr)[5])
#define EDID_DESC_COLOR_WHITEX_1(ptr) _CHROMA(ptr, 6, 2, 7)
#define EDID_DESC_COLOR_WHITEY_1(ptr) _CHROMA(ptr, 6, 0, 8)
#define EDID_DESC_COLOR_GAMMA_1(ptr) _GAMMA(ptr[9])
#define EDID_DESC_COLOR_WHITE_INDEX_2(ptr) ((ptr)[10])
#define EDID_DESC_COLOR_WHITEX_2(ptr) _CHROMA(ptr, 11, 2, 12)
#define EDID_DESC_COLOR_WHITEY_2(ptr) _CHROMA(ptr, 11, 0, 13)
#define EDID_DESC_COLOR_GAMMA_2(ptr) _GAMMA(ptr[14])
#define EDID_DESC_STD_TIMING_START 5
#define EDID_DESC_STD_TIMING_COUNT 6
#endif /* _DEV_VIDEOMODE_EDIDREG_H */
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