127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
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/* xf86DDC.h
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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 XF86_DDC_H
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# define XF86_DDC_H
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#include "edid.h"
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#include "xf86i2c.h"
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#include "xf86str.h"
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/* speed up / slow down */
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typedef enum {
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DDC_SLOW,
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DDC_FAST
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} xf86ddcSpeed;
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typedef void (* DDC1SetSpeedProc)(ScrnInfoPtr, xf86ddcSpeed);
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extern _X_EXPORT xf86MonPtr xf86DoEDID_DDC1(
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int scrnIndex,
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DDC1SetSpeedProc DDC1SetSpeed,
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unsigned int (*DDC1Read)(ScrnInfoPtr)
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);
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extern _X_EXPORT xf86MonPtr xf86DoEDID_DDC2(
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int scrnIndex,
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I2CBusPtr pBus
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);
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extern _X_EXPORT xf86MonPtr xf86DoEEDID(int scrnIndex, I2CBusPtr pBus, Bool);
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extern _X_EXPORT xf86MonPtr xf86PrintEDID(
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xf86MonPtr monPtr
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);
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extern _X_EXPORT xf86MonPtr xf86InterpretEDID(
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int screenIndex, Uchar *block
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);
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extern _X_EXPORT xf86MonPtr xf86InterpretEEDID(
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int screenIndex, Uchar *block
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);
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extern _X_EXPORT void
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xf86EdidMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC);
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extern _X_EXPORT Bool xf86SetDDCproperties(
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ScrnInfoPtr pScreen,
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xf86MonPtr DDC
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);
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extern _X_EXPORT DisplayModePtr xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC);
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extern _X_EXPORT Bool
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xf86MonitorIsHDMI(xf86MonPtr mon);
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extern _X_EXPORT xf86MonPtr
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xf86DoDisplayID(int scrnIndex, I2CBusPtr pBus);
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extern _X_EXPORT void
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xf86DisplayIDMonitorSet(int scrnIndex, MonPtr mon, xf86MonPtr DDC);
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extern _X_EXPORT DisplayModePtr
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FindDMTMode(int hsize, int vsize, int refresh, Bool rb);
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extern _X_EXPORT const DisplayModeRec DMTModes[];
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/*
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* Quirks to work around broken EDID data from various monitors.
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*/
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typedef enum {
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DDC_QUIRK_NONE = 0,
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/* First detailed mode is bogus, prefer largest mode at 60hz */
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DDC_QUIRK_PREFER_LARGE_60 = 1 << 0,
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/* 135MHz clock is too high, drop a bit */
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DDC_QUIRK_135_CLOCK_TOO_HIGH = 1 << 1,
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/* Prefer the largest mode at 75 Hz */
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DDC_QUIRK_PREFER_LARGE_75 = 1 << 2,
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/* Convert detailed timing's horizontal from units of cm to mm */
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DDC_QUIRK_DETAILED_H_IN_CM = 1 << 3,
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/* Convert detailed timing's vertical from units of cm to mm */
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DDC_QUIRK_DETAILED_V_IN_CM = 1 << 4,
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/* Detailed timing descriptors have bogus size values, so just take the
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* maximum size and use that.
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*/
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DDC_QUIRK_DETAILED_USE_MAXIMUM_SIZE = 1 << 5,
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/* Monitor forgot to set the first detailed is preferred bit. */
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DDC_QUIRK_FIRST_DETAILED_PREFERRED = 1 << 6,
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/* use +hsync +vsync for detailed mode */
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DDC_QUIRK_DETAILED_SYNC_PP = 1 << 7,
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/* Force single-link DVI bandwidth limit */
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DDC_QUIRK_DVI_SINGLE_LINK = 1 << 8,
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} ddc_quirk_t;
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DisplayModePtr xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC);
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extern Bool
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xf86MonitorIsHDMI(xf86MonPtr mon);
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typedef void (* handle_detailed_fn)(struct detailed_monitor_section *,void *);
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void xf86ForEachDetailedBlock(xf86MonPtr mon,
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handle_detailed_fn,
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void *data);
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ddc_quirk_t
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xf86DDCDetectQuirks(int scrnIndex, xf86MonPtr DDC, Bool verbose);
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void xf86DetTimingApplyQuirks(struct detailed_monitor_section *det_mon,
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ddc_quirk_t quirks, int hsize, int vsize);
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typedef void (* handle_video_fn)(struct cea_video_block *, void *);
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void xf86ForEachVideoBlock(xf86MonPtr,
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handle_video_fn,
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void *);
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#endif
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