69b79c1a66
Under the terms of version 1.1, "once Covered Code has been published under a particular version of the License, Recipient may, for the duration of the License, continue to use it under the terms of that version, or choose to use such Covered Code under the terms of any subsequent version published by SGI." FreeB 2.0 license refers to "dates of first publication". They are here taken to be 1991-2000, as noted in the original license text: ** Original Code. The Original Code is: OpenGL Sample Implementation, ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. ** Copyright in any portions created by third parties is as indicated ** elsewhere herein. All Rights Reserved. Official FreeB 2.0 text: http://oss.sgi.com/projects/FreeB/SGIFreeSWLicB.2.0.pdf As always, this code has not been tested for conformance with the OpenGL specification. OpenGL conformance testing is available from http://khronos.org/ and is required for use of the OpenGL logo in product advertising and promotion.
639 lines
18 KiB
C
639 lines
18 KiB
C
/*
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* edid.h: defines to parse an EDID block
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*
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* This file contains all information to interpret a standard EDIC block
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* transmitted by a display device via DDC (Display Data Channel). So far
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* there is no information to deal with optional EDID blocks.
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* DDC is a Trademark of VESA (Video Electronics Standard Association).
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*
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* Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
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*/
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#ifndef _EDID_H_
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#define _EDID_H_
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/* read complete EDID record */
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#define EDID1_LEN 128
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#define BITS_PER_BYTE 9
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#define NUM BITS_PER_BYTE*EDID1_LEN
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#define HEADER 6
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#define STD_TIMINGS 8
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#define DET_TIMINGS 4
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#ifdef _PARSE_EDID_
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/* header: 0x00 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0x00 */
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#define HEADER_SECTION 0
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#define HEADER_LENGTH 8
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/* vendor section */
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#define VENDOR_SECTION (HEADER_SECTION + HEADER_LENGTH)
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#define V_MANUFACTURER 0
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#define V_PROD_ID (V_MANUFACTURER + 2)
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#define V_SERIAL (V_PROD_ID + 2)
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#define V_WEEK (V_SERIAL + 4)
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#define V_YEAR (V_WEEK + 1)
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#define VENDOR_LENGTH (V_YEAR + 1)
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/* EDID version */
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#define VERSION_SECTION (VENDOR_SECTION + VENDOR_LENGTH)
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#define V_VERSION 0
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#define V_REVISION (V_VERSION + 1)
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#define VERSION_LENGTH (V_REVISION + 1)
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/* display information */
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#define DISPLAY_SECTION (VERSION_SECTION + VERSION_LENGTH)
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#define D_INPUT 0
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#define D_HSIZE (D_INPUT + 1)
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#define D_VSIZE (D_HSIZE + 1)
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#define D_GAMMA (D_VSIZE + 1)
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#define FEAT_S (D_GAMMA + 1)
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#define D_RG_LOW (FEAT_S + 1)
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#define D_BW_LOW (D_RG_LOW + 1)
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#define D_REDX (D_BW_LOW + 1)
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#define D_REDY (D_REDX + 1)
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#define D_GREENX (D_REDY + 1)
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#define D_GREENY (D_GREENX + 1)
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#define D_BLUEX (D_GREENY + 1)
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#define D_BLUEY (D_BLUEX + 1)
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#define D_WHITEX (D_BLUEY + 1)
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#define D_WHITEY (D_WHITEX + 1)
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#define DISPLAY_LENGTH (D_WHITEY + 1)
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/* supported VESA and other standard timings */
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#define ESTABLISHED_TIMING_SECTION (DISPLAY_SECTION + DISPLAY_LENGTH)
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#define E_T1 0
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#define E_T2 (E_T1 + 1)
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#define E_TMANU (E_T2 + 1)
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#define E_TIMING_LENGTH (E_TMANU + 1)
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/* non predefined standard timings supported by display */
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#define STD_TIMING_SECTION (ESTABLISHED_TIMING_SECTION + E_TIMING_LENGTH)
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#define STD_TIMING_INFO_LEN 2
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#define STD_TIMING_INFO_NUM STD_TIMINGS
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#define STD_TIMING_LENGTH (STD_TIMING_INFO_LEN * STD_TIMING_INFO_NUM)
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/* detailed timing info of non standard timings */
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#define DET_TIMING_SECTION (STD_TIMING_SECTION + STD_TIMING_LENGTH)
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#define DET_TIMING_INFO_LEN 18
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#define MONITOR_DESC_LEN DET_TIMING_INFO_LEN
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#define DET_TIMING_INFO_NUM DET_TIMINGS
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#define DET_TIMING_LENGTH (DET_TIMING_INFO_LEN * DET_TIMING_INFO_NUM)
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/* number of EDID sections to follow */
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#define NO_EDID (DET_TIMING_SECTION + DET_TIMING_LENGTH)
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/* one byte checksum */
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#define CHECKSUM (NO_EDID + 1)
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#if (CHECKSUM != (EDID1_LEN - 1))
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# error "EDID1 length != 128!"
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#endif
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#define SECTION(x,y) (Uchar *)(x + y)
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#define GET_ARRAY(y) ((Uchar *)(c + y))
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#define GET(y) *(Uchar *)(c + y)
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/* extract information from vendor section */
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#define _PROD_ID(x) x[0] + (x[1] << 8);
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#define PROD_ID _PROD_ID(GET_ARRAY(V_PROD_ID))
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#define _SERIAL_NO(x) x[0] + (x[1] << 8) + (x[2] << 16) + (x[3] << 24)
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#define SERIAL_NO _SERIAL_NO(GET_ARRAY(V_SERIAL))
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#define _YEAR(x) (x & 0xFF) + 1990
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#define YEAR _YEAR(GET(V_YEAR))
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#define WEEK GET(V_WEEK) & 0xFF
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#define _L1(x) ((x[0] & 0x7C) >> 2) + '@'
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#define _L2(x) ((x[0] & 0x03) << 3) + ((x[1] & 0xE0) >> 5) + '@'
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#define _L3(x) (x[1] & 0x1F) + '@';
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#define L1 _L1(GET_ARRAY(V_MANUFACTURER))
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#define L2 _L2(GET_ARRAY(V_MANUFACTURER))
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#define L3 _L3(GET_ARRAY(V_MANUFACTURER))
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/* extract information from version section */
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#define VERSION GET(V_VERSION)
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#define REVISION GET(V_REVISION)
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/* extract information from display section */
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#define _INPUT_TYPE(x) ((x & 0x80) >> 7)
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#define INPUT_TYPE _INPUT_TYPE(GET(D_INPUT))
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#define _INPUT_VOLTAGE(x) ((x & 0x60) >> 5)
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#define INPUT_VOLTAGE _INPUT_VOLTAGE(GET(D_INPUT))
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#define _SETUP(x) ((x & 0x10) >> 4)
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#define SETUP _SETUP(GET(D_INPUT))
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#define _SYNC(x) (x & 0x0F)
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#define SYNC _SYNC(GET(D_INPUT))
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#define _DFP(x) (x & 0x01)
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#define DFP _DFP(GET(D_INPUT))
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#define _BPC(x) ((x & 0x70) >> 4)
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#define BPC _BPC(GET(D_INPUT))
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#define _DIGITAL_INTERFACE(x) (x & 0x0F)
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#define DIGITAL_INTERFACE _DIGITAL_INTERFACE(GET(D_INPUT))
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#define _GAMMA(x) (x == 0xff ? 0.0 : ((x + 100.0)/100.0))
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#define GAMMA _GAMMA(GET(D_GAMMA))
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#define HSIZE_MAX GET(D_HSIZE)
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#define VSIZE_MAX GET(D_VSIZE)
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#define _DPMS(x) ((x & 0xE0) >> 5)
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#define DPMS _DPMS(GET(FEAT_S))
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#define _DISPLAY_TYPE(x) ((x & 0x18) >> 3)
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#define DISPLAY_TYPE _DISPLAY_TYPE(GET(FEAT_S))
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#define _MSC(x) (x & 0x7)
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#define MSC _MSC(GET(FEAT_S))
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/* color characteristics */
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#define CC_L(x,y) ((x & (0x03 << y)) >> y)
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#define CC_H(x) (x << 2)
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#define I_CC(x,y,z) CC_H(y) | CC_L(x,z)
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#define F_CC(x) ((x)/1024.0)
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#define REDX F_CC(I_CC((GET(D_RG_LOW)),(GET(D_REDX)),6))
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#define REDY F_CC(I_CC((GET(D_RG_LOW)),(GET(D_REDY)),4))
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#define GREENX F_CC(I_CC((GET(D_RG_LOW)),(GET(D_GREENX)),2))
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#define GREENY F_CC(I_CC((GET(D_RG_LOW)),(GET(D_GREENY)),0))
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#define BLUEX F_CC(I_CC((GET(D_BW_LOW)),(GET(D_BLUEX)),6))
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#define BLUEY F_CC(I_CC((GET(D_BW_LOW)),(GET(D_BLUEY)),4))
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#define WHITEX F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEX)),2))
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#define WHITEY F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEY)),0))
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/* extract information from standard timing section */
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#define T1 GET(E_T1)
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#define T2 GET(E_T2)
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#define T_MANU GET(E_TMANU)
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/* extract information from estabished timing section */
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#define _VALID_TIMING(x) !(((x[0] == 0x01) && (x[1] == 0x01)) \
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|| ((x[0] == 0x00) && (x[1] == 0x00)) \
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|| ((x[0] == 0x20) && (x[1] == 0x20)) )
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#define VALID_TIMING _VALID_TIMING(c)
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#define _HSIZE1(x) ((x[0] + 31) * 8)
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#define HSIZE1 _HSIZE1(c)
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#define RATIO(x) ((x[1] & 0xC0) >> 6)
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#define RATIO1_1 0
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/* EDID Ver. 1.3 redefined this */
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#define RATIO16_10 RATIO1_1
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#define RATIO4_3 1
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#define RATIO5_4 2
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#define RATIO16_9 3
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#define _VSIZE1(x,y,r) switch(RATIO(x)){ \
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case RATIO1_1: y = ((v->version > 1 || v->revision > 2) \
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? (_HSIZE1(x) * 10) / 16 : _HSIZE1(x)); break; \
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case RATIO4_3: y = _HSIZE1(x) * 3 / 4; break; \
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case RATIO5_4: y = _HSIZE1(x) * 4 / 5; break; \
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case RATIO16_9: y = _HSIZE1(x) * 9 / 16; break; \
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}
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#define VSIZE1(x) _VSIZE1(c,x,v)
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#define _REFRESH_R(x) (x[1] & 0x3F) + 60
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#define REFRESH_R _REFRESH_R(c)
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#define _ID_LOW(x) x[0]
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#define ID_LOW _ID_LOW(c)
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#define _ID_HIGH(x) (x[1] << 8)
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#define ID_HIGH _ID_HIGH(c)
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#define STD_TIMING_ID (ID_LOW | ID_HIGH)
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#define _NEXT_STD_TIMING(x) (x = (x + STD_TIMING_INFO_LEN))
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#define NEXT_STD_TIMING _NEXT_STD_TIMING(c)
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/* EDID Ver. >= 1.2 */
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/**
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* Returns true if the pointer is the start of a monitor descriptor block
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* instead of a detailed timing descriptor.
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*
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* Checking the reserved pad fields for zeroes fails on some monitors with
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* broken empty ASCII strings. Only the first two bytes are reliable.
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*/
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#define _IS_MONITOR_DESC(x) (x[0] == 0 && x[1] == 0)
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#define IS_MONITOR_DESC _IS_MONITOR_DESC(c)
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#define _PIXEL_CLOCK(x) (x[0] + (x[1] << 8)) * 10000
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#define PIXEL_CLOCK _PIXEL_CLOCK(c)
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#define _H_ACTIVE(x) (x[2] + ((x[4] & 0xF0) << 4))
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#define H_ACTIVE _H_ACTIVE(c)
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#define _H_BLANK(x) (x[3] + ((x[4] & 0x0F) << 8))
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#define H_BLANK _H_BLANK(c)
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#define _V_ACTIVE(x) (x[5] + ((x[7] & 0xF0) << 4))
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#define V_ACTIVE _V_ACTIVE(c)
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#define _V_BLANK(x) (x[6] + ((x[7] & 0x0F) << 8))
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#define V_BLANK _V_BLANK(c)
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#define _H_SYNC_OFF(x) (x[8] + ((x[11] & 0xC0) << 2))
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#define H_SYNC_OFF _H_SYNC_OFF(c)
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#define _H_SYNC_WIDTH(x) (x[9] + ((x[11] & 0x30) << 4))
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#define H_SYNC_WIDTH _H_SYNC_WIDTH(c)
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#define _V_SYNC_OFF(x) ((x[10] >> 4) + ((x[11] & 0x0C) << 2))
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#define V_SYNC_OFF _V_SYNC_OFF(c)
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#define _V_SYNC_WIDTH(x) ((x[10] & 0x0F) + ((x[11] & 0x03) << 4))
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#define V_SYNC_WIDTH _V_SYNC_WIDTH(c)
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#define _H_SIZE(x) (x[12] + ((x[14] & 0xF0) << 4))
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#define H_SIZE _H_SIZE(c)
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#define _V_SIZE(x) (x[13] + ((x[14] & 0x0F) << 8))
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#define V_SIZE _V_SIZE(c)
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#define _H_BORDER(x) (x[15])
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#define H_BORDER _H_BORDER(c)
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#define _V_BORDER(x) (x[16])
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#define V_BORDER _V_BORDER(c)
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#define _INTERLACED(x) ((x[17] & 0x80) >> 7)
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#define INTERLACED _INTERLACED(c)
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#define _STEREO(x) ((x[17] & 0x60) >> 5)
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#define STEREO _STEREO(c)
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#define _STEREO1(x) (x[17] & 0x1)
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#define STEREO1 _STEREO(c)
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#define _SYNC_T(x) ((x[17] & 0x18) >> 3)
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#define SYNC_T _SYNC_T(c)
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#define _MISC(x) ((x[17] & 0x06) >> 1)
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#define MISC _MISC(c)
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#define _MONITOR_DESC_TYPE(x) x[3]
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#define MONITOR_DESC_TYPE _MONITOR_DESC_TYPE(c)
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#define SERIAL_NUMBER 0xFF
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#define ASCII_STR 0xFE
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#define MONITOR_RANGES 0xFD
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#define _MIN_V_OFFSET(x) ((!!(x[4] & 0x01)) * 255)
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#define _MAX_V_OFFSET(x) ((!!(x[4] & 0x02)) * 255)
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#define _MIN_H_OFFSET(x) ((!!(x[4] & 0x04)) * 255)
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#define _MAX_H_OFFSET(x) ((!!(x[4] & 0x08)) * 255)
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#define _MIN_V(x) x[5]
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#define MIN_V (_MIN_V(c) + _MIN_V_OFFSET(c))
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#define _MAX_V(x) x[6]
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#define MAX_V (_MAX_V(c) + _MAX_V_OFFSET(c))
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#define _MIN_H(x) x[7]
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#define MIN_H (_MIN_H(c) + _MIN_H_OFFSET(c))
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#define _MAX_H(x) x[8]
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#define MAX_H (_MAX_H(c) + _MAX_H_OFFSET(c))
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#define _MAX_CLOCK(x) x[9]
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#define MAX_CLOCK _MAX_CLOCK(c)
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#define _HAVE_2ND_GTF(x) (x[10] == 0x02)
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#define HAVE_2ND_GTF _HAVE_2ND_GTF(c)
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#define _F_2ND_GTF(x) (x[12] * 2)
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#define F_2ND_GTF _F_2ND_GTF(c)
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#define _C_2ND_GTF(x) (x[13] / 2)
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#define C_2ND_GTF _C_2ND_GTF(c)
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#define _M_2ND_GTF(x) (x[14] + (x[15] << 8))
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#define M_2ND_GTF _M_2ND_GTF(c)
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#define _K_2ND_GTF(x) (x[16])
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#define K_2ND_GTF _K_2ND_GTF(c)
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#define _J_2ND_GTF(x) (x[17] / 2)
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#define J_2ND_GTF _J_2ND_GTF(c)
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#define _HAVE_CVT(x) (x[10] == 0x04)
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#define HAVE_CVT _HAVE_CVT(c)
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#define _MAX_CLOCK_KHZ(x) (x[12] >> 2)
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#define MAX_CLOCK_KHZ (MAX_CLOCK * 10000) - (_MAX_CLOCK_KHZ(c) * 250)
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#define _MAXWIDTH(x) ((x[13] == 0 ? 0 : x[13] + ((x[12] & 0x03) << 8)) * 8)
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#define MAXWIDTH _MAXWIDTH(c)
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#define _SUPPORTED_ASPECT(x) x[14]
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#define SUPPORTED_ASPECT _SUPPORTED_ASPECT(c)
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#define SUPPORTED_ASPECT_4_3 0x80
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#define SUPPORTED_ASPECT_16_9 0x40
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#define SUPPORTED_ASPECT_16_10 0x20
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#define SUPPORTED_ASPECT_5_4 0x10
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#define SUPPORTED_ASPECT_15_9 0x08
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#define _PREFERRED_ASPECT(x) ((x[15] & 0xe0) >> 5)
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#define PREFERRED_ASPECT _PREFERRED_ASPECT(c)
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#define PREFERRED_ASPECT_4_3 0
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#define PREFERRED_ASPECT_16_9 1
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#define PREFERRED_ASPECT_16_10 2
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#define PREFERRED_ASPECT_5_4 3
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#define PREFERRED_ASPECT_15_9 4
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#define _SUPPORTED_BLANKING(x) ((x[15] & 0x18) >> 3)
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#define SUPPORTED_BLANKING _SUPPORTED_BLANKING(c)
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#define CVT_STANDARD 0x01
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#define CVT_REDUCED 0x02
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#define _SUPPORTED_SCALING(x) ((x[16] & 0xf0) >> 4)
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#define SUPPORTED_SCALING _SUPPORTED_SCALING(c)
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#define SCALING_HSHRINK 0x08
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#define SCALING_HSTRETCH 0x04
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#define SCALING_VSHRINK 0x02
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#define SCALING_VSTRETCH 0x01
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#define _PREFERRED_REFRESH(x) x[17]
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#define PREFERRED_REFRESH _PREFERRED_REFRESH(c)
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#define MONITOR_NAME 0xFC
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#define ADD_COLOR_POINT 0xFB
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#define WHITEX F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEX)),2))
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#define WHITEY F_CC(I_CC((GET(D_BW_LOW)),(GET(D_WHITEY)),0))
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#define _WHITEX_ADD(x,y) F_CC(I_CC(((*(x + y))),(*(x + y + 1)),2))
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#define _WHITEY_ADD(x,y) F_CC(I_CC(((*(x + y))),(*(x + y + 2)),0))
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#define _WHITE_INDEX1(x) x[5]
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#define WHITE_INDEX1 _WHITE_INDEX1(c)
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#define _WHITE_INDEX2(x) x[10]
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#define WHITE_INDEX2 _WHITE_INDEX2(c)
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#define WHITEX1 _WHITEX_ADD(c,6)
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#define WHITEY1 _WHITEY_ADD(c,6)
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#define WHITEX2 _WHITEX_ADD(c,12)
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#define WHITEY2 _WHITEY_ADD(c,12)
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#define _WHITE_GAMMA1(x) _GAMMA(x[9])
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#define WHITE_GAMMA1 _WHITE_GAMMA1(c)
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#define _WHITE_GAMMA2(x) _GAMMA(x[14])
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#define WHITE_GAMMA2 _WHITE_GAMMA2(c)
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#define ADD_STD_TIMINGS 0xFA
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#define COLOR_MANAGEMENT_DATA 0xF9
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#define CVT_3BYTE_DATA 0xF8
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#define ADD_EST_TIMINGS 0xF7
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#define ADD_DUMMY 0x10
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#define _NEXT_DT_MD_SECTION(x) (x = (x + DET_TIMING_INFO_LEN))
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#define NEXT_DT_MD_SECTION _NEXT_DT_MD_SECTION(c)
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#endif /* _PARSE_EDID_ */
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/* input type */
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#define DIGITAL(x) x
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/* DFP */
|
|
#define DFP1(x) x
|
|
|
|
/* input voltage level */
|
|
#define V070 0 /* 0.700V/0.300V */
|
|
#define V071 1 /* 0.714V/0.286V */
|
|
#define V100 2 /* 1.000V/0.400V */
|
|
#define V007 3 /* 0.700V/0.000V */
|
|
|
|
/* Signal level setup */
|
|
#define SIG_SETUP(x) (x)
|
|
|
|
/* sync characteristics */
|
|
#define SEP_SYNC(x) (x & 0x08)
|
|
#define COMP_SYNC(x) (x & 0x04)
|
|
#define SYNC_O_GREEN(x) (x & 0x02)
|
|
#define SYNC_SERR(x) (x & 0x01)
|
|
|
|
/* DPMS features */
|
|
#define DPMS_STANDBY(x) (x & 0x04)
|
|
#define DPMS_SUSPEND(x) (x & 0x02)
|
|
#define DPMS_OFF(x) (x & 0x01)
|
|
|
|
/* display type, analog */
|
|
#define DISP_MONO 0
|
|
#define DISP_RGB 1
|
|
#define DISP_MULTCOLOR 2
|
|
|
|
/* display color encodings, digital */
|
|
#define DISP_YCRCB444 0x01
|
|
#define DISP_YCRCB422 0x02
|
|
|
|
/* Msc stuff EDID Ver > 1.1 */
|
|
#define STD_COLOR_SPACE(x) (x & 0x4)
|
|
#define PREFERRED_TIMING_MODE(x) (x & 0x2)
|
|
#define GFT_SUPPORTED(x) (x & 0x1)
|
|
#define GTF_SUPPORTED(x) (x & 0x1)
|
|
#define CVT_SUPPORTED(x) (x & 0x1)
|
|
|
|
/* detailed timing misc */
|
|
#define IS_INTERLACED(x) (x)
|
|
#define IS_STEREO(x) (x)
|
|
#define IS_RIGHT_STEREO(x) (x & 0x01)
|
|
#define IS_LEFT_STEREO(x) (x & 0x02)
|
|
#define IS_4WAY_STEREO(x) (x & 0x03)
|
|
#define IS_RIGHT_ON_SYNC(x) IS_RIGHT_STEREO(x)
|
|
#define IS_LEFT_ON_SYNC(x) IS_LEFT_STEREO(x)
|
|
|
|
|
|
typedef unsigned int Uint;
|
|
typedef unsigned char Uchar;
|
|
|
|
struct vendor {
|
|
char name[4];
|
|
int prod_id;
|
|
Uint serial;
|
|
int week;
|
|
int year;
|
|
};
|
|
|
|
struct edid_version {
|
|
int version;
|
|
int revision;
|
|
};
|
|
|
|
struct disp_features {
|
|
unsigned int input_type:1;
|
|
unsigned int input_voltage:2;
|
|
unsigned int input_setup:1;
|
|
unsigned int input_sync:5;
|
|
unsigned int input_dfp:1;
|
|
unsigned int input_bpc:3;
|
|
unsigned int input_interface:4;
|
|
/* 15 bit hole */
|
|
int hsize;
|
|
int vsize;
|
|
float gamma;
|
|
unsigned int dpms:3;
|
|
unsigned int display_type:2;
|
|
unsigned int msc:3;
|
|
float redx;
|
|
float redy;
|
|
float greenx;
|
|
float greeny;
|
|
float bluex;
|
|
float bluey;
|
|
float whitex;
|
|
float whitey;
|
|
};
|
|
|
|
struct established_timings {
|
|
Uchar t1;
|
|
Uchar t2;
|
|
Uchar t_manu;
|
|
};
|
|
|
|
struct std_timings {
|
|
int hsize;
|
|
int vsize;
|
|
int refresh;
|
|
CARD16 id;
|
|
};
|
|
|
|
struct detailed_timings {
|
|
int clock;
|
|
int h_active;
|
|
int h_blanking;
|
|
int v_active;
|
|
int v_blanking;
|
|
int h_sync_off;
|
|
int h_sync_width;
|
|
int v_sync_off;
|
|
int v_sync_width;
|
|
int h_size;
|
|
int v_size;
|
|
int h_border;
|
|
int v_border;
|
|
unsigned int interlaced:1;
|
|
unsigned int stereo:2;
|
|
unsigned int sync:2;
|
|
unsigned int misc:2;
|
|
unsigned int stereo_1:1;
|
|
};
|
|
|
|
#define DT 0
|
|
#define DS_SERIAL 0xFF
|
|
#define DS_ASCII_STR 0xFE
|
|
#define DS_NAME 0xFC
|
|
#define DS_RANGES 0xFD
|
|
#define DS_WHITE_P 0xFB
|
|
#define DS_STD_TIMINGS 0xFA
|
|
#define DS_CMD 0xF9
|
|
#define DS_CVT 0xF8
|
|
#define DS_EST_III 0xF7
|
|
#define DS_DUMMY 0x10
|
|
#define DS_UNKOWN 0x100 /* type is an int */
|
|
#define DS_VENDOR 0x101
|
|
#define DS_VENDOR_MAX 0x110
|
|
|
|
struct monitor_ranges {
|
|
int min_v;
|
|
int max_v;
|
|
int min_h;
|
|
int max_h;
|
|
int max_clock; /* in mhz */
|
|
int gtf_2nd_f;
|
|
int gtf_2nd_c;
|
|
int gtf_2nd_m;
|
|
int gtf_2nd_k;
|
|
int gtf_2nd_j;
|
|
int max_clock_khz;
|
|
int maxwidth; /* in pixels */
|
|
char supported_aspect;
|
|
char preferred_aspect;
|
|
char supported_blanking;
|
|
char supported_scaling;
|
|
int preferred_refresh; /* in hz */
|
|
};
|
|
|
|
struct whitePoints{
|
|
int index;
|
|
float white_x;
|
|
float white_y;
|
|
float white_gamma;
|
|
};
|
|
|
|
struct cvt_timings {
|
|
int width;
|
|
int height;
|
|
int rate;
|
|
int rates;
|
|
};
|
|
|
|
/*
|
|
* Be careful when adding new sections; this structure can't grow, it's
|
|
* embedded in the middle of xf86Monitor which is ABI. Sizes below are
|
|
* in bytes, for ILP32 systems. If all else fails just copy the section
|
|
* literally like serial and friends.
|
|
*/
|
|
struct detailed_monitor_section {
|
|
int type;
|
|
union {
|
|
struct detailed_timings d_timings; /* 56 */
|
|
Uchar serial[13];
|
|
Uchar ascii_data[13];
|
|
Uchar name[13];
|
|
struct monitor_ranges ranges; /* 56 */
|
|
struct std_timings std_t[5]; /* 80 */
|
|
struct whitePoints wp[2]; /* 32 */
|
|
/* color management data */
|
|
struct cvt_timings cvt[4]; /* 64 */
|
|
/* established timings III */
|
|
} section; /* max: 80 */
|
|
};
|
|
|
|
/*
|
|
* E-EDID is defined as a sequence of 128-byte blocks. Block 0 is mandatory
|
|
* and contains a base EDID 1.3+ record as given above. If only one extension
|
|
* is present, block 1 is that extension; otherwise block 1 is a block map.
|
|
* If necessary, block 128 is also a block map.
|
|
*
|
|
* Actually the block map requirements aren't especially well defined. And
|
|
* the list below is merely the set of extensions that are most likely to
|
|
* exist.
|
|
*/
|
|
|
|
#define EDID_EXT_CEAEXT 0x02
|
|
#define EDID_EXT_VTBEXT 0x10
|
|
#define EDID_EXT_DIEXT 0x40
|
|
#define EDID_EXT_LSEXT 0x50
|
|
#define EDID_EXT_DPVL 0x60
|
|
#define EDID_EXT_BLOCKMAP 0xF0
|
|
#define EDID_EXT_VENDOR 0xFF
|
|
|
|
struct edid_extension {
|
|
char extension;
|
|
char version;
|
|
};
|
|
|
|
/* we use this for unknown extension types too */
|
|
struct edid_vendor_extension {
|
|
struct edid_extension header;
|
|
char data[126];
|
|
};
|
|
|
|
struct edid_blockmap {
|
|
char extension;
|
|
char block[126];
|
|
char checksum;
|
|
};
|
|
|
|
/* CEA-EXT */
|
|
|
|
#define CEA_AUDIO 1
|
|
#define CEA_VIDEO 2
|
|
#define CEA_VENDOR 3
|
|
#define CEA_SPEAKER 4
|
|
#define CEA_VTC 5
|
|
|
|
/* struct cea_audio_block { } ; */
|
|
|
|
struct cea_video_block {
|
|
int num_codes;
|
|
char vic[32]; /* Video Identification Code, see InfoFrame docs */
|
|
};
|
|
|
|
struct cea_vendor_block {
|
|
int len;
|
|
unsigned int ieee_id;
|
|
union {
|
|
/* hdmi */
|
|
char raw[32];
|
|
};
|
|
};
|
|
|
|
struct cea_data_block {
|
|
int tag;
|
|
union {
|
|
struct cea_video_block video;
|
|
/* struct cea_audio_block audio; */
|
|
struct cea_vendor_block vendor;
|
|
} u;
|
|
};
|
|
|
|
struct edid_cea_extension {
|
|
struct edid_extension header;
|
|
Bool underscan;
|
|
Bool audio;
|
|
Bool ycbcr_444;
|
|
Bool ycbcr_422;
|
|
int num_native;
|
|
|
|
int num_detailed;
|
|
struct detailed_timings d_timings[6];
|
|
|
|
int num_data_block;
|
|
void **data;
|
|
};
|
|
|
|
/* flags */
|
|
#define EDID_COMPLETE_RAWDATA 0x1
|
|
#define EDID_HAVE_EXTENSIONS 0x2
|
|
|
|
typedef struct {
|
|
int scrnIndex;
|
|
struct vendor vendor;
|
|
struct edid_version ver;
|
|
struct disp_features features;
|
|
struct established_timings timings1;
|
|
struct std_timings timings2[8];
|
|
struct detailed_monitor_section det_mon[4];
|
|
unsigned long flags;
|
|
int no_sections;
|
|
Uchar *rawData;
|
|
void **ext;
|
|
} xf86Monitor, *xf86MonPtr;
|
|
|
|
extern xf86MonPtr ConfiguredMonitor;
|
|
|
|
#endif /* _EDID_H_ */
|