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/* xf86DDC.h
*
* This file contains all information to interpret a standard EDIC block
* transmitted by a display device via DDC (Display Data Channel). So far
* there is no information to deal with optional EDID blocks.
* DDC is a Trademark of VESA (Video Electronics Standard Association).
*
* Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
*/
#ifndef XF86_DDC_H
#define XF86_DDC_H
#include "edid.h"
#include "xf86i2c.h"
#include "xf86str.h"
/* speed up / slow down */
typedef enum {
DDC_SLOW,
DDC_FAST
} xf86ddcSpeed;
typedef void (*DDC1SetSpeedProc) (ScrnInfoPtr, xf86ddcSpeed);
extern _X_EXPORT xf86MonPtr xf86DoEDID_DDC1(ScrnInfoPtr pScrn,
DDC1SetSpeedProc DDC1SetSpeed,
unsigned
int (*DDC1Read) (ScrnInfoPtr)
);
extern _X_EXPORT xf86MonPtr xf86DoEDID_DDC2(ScrnInfoPtr pScrn, I2CBusPtr pBus);
extern _X_EXPORT xf86MonPtr xf86DoEEDID(ScrnInfoPtr pScrn, I2CBusPtr pBus, Bool);
extern _X_EXPORT xf86MonPtr xf86PrintEDID(xf86MonPtr monPtr);
extern _X_EXPORT xf86MonPtr xf86InterpretEDID(int screenIndex, Uchar * block);
extern _X_EXPORT xf86MonPtr xf86InterpretEEDID(int screenIndex, Uchar * block);
extern _X_EXPORT void
xf86EdidMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC);
extern _X_EXPORT Bool xf86SetDDCproperties(ScrnInfoPtr pScreen, xf86MonPtr DDC);
extern _X_EXPORT Bool
xf86MonitorIsHDMI(xf86MonPtr mon);
extern _X_EXPORT DisplayModePtr
FindDMTMode(int hsize, int vsize, int refresh, Bool rb);
extern _X_EXPORT const DisplayModeRec DMTModes[];
/*
* Quirks to work around broken EDID data from various monitors.
*/
typedef enum {
DDC_QUIRK_NONE = 0,
/* First detailed mode is bogus, prefer largest mode at 60hz */
DDC_QUIRK_PREFER_LARGE_60 = 1 << 0,
/* 135MHz clock is too high, drop a bit */
DDC_QUIRK_135_CLOCK_TOO_HIGH = 1 << 1,
/* Prefer the largest mode at 75 Hz */
DDC_QUIRK_PREFER_LARGE_75 = 1 << 2,
/* Convert detailed timing's horizontal from units of cm to mm */
DDC_QUIRK_DETAILED_H_IN_CM = 1 << 3,
/* Convert detailed timing's vertical from units of cm to mm */
DDC_QUIRK_DETAILED_V_IN_CM = 1 << 4,
/* Detailed timing descriptors have bogus size values, so just take the
* maximum size and use that.
*/
DDC_QUIRK_DETAILED_USE_MAXIMUM_SIZE = 1 << 5,
/* Monitor forgot to set the first detailed is preferred bit. */
DDC_QUIRK_FIRST_DETAILED_PREFERRED = 1 << 6,
/* use +hsync +vsync for detailed mode */
DDC_QUIRK_DETAILED_SYNC_PP = 1 << 7,
/* Force single-link DVI bandwidth limit */
DDC_QUIRK_DVI_SINGLE_LINK = 1 << 8,
} ddc_quirk_t;
typedef void (*handle_detailed_fn) (struct detailed_monitor_section *, void *);
void xf86ForEachDetailedBlock(xf86MonPtr mon, handle_detailed_fn, void *data);
ddc_quirk_t xf86DDCDetectQuirks(int scrnIndex, xf86MonPtr DDC, Bool verbose);
void xf86DetTimingApplyQuirks(struct detailed_monitor_section *det_mon,
ddc_quirk_t quirks, int hsize, int vsize);
typedef void (*handle_video_fn) (struct cea_video_block *, void *);
void xf86ForEachVideoBlock(xf86MonPtr, handle_video_fn, void *);
struct cea_data_block *xf86MonitorFindHDMIBlock(xf86MonPtr mon);
#endif
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