59 lines
1.2 KiB
C
59 lines
1.2 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 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 xf86MonPtr xf86DoEDID_DDC2(
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int scrnIndex,
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I2CBusPtr pBus
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);
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extern xf86MonPtr xf86PrintEDID(
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xf86MonPtr monPtr
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);
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extern xf86MonPtr xf86InterpretEDID(
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int screenIndex, Uchar *block
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);
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extern void
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xf86DDCMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC);
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extern Bool xf86SetDDCproperties(
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ScrnInfoPtr pScreen,
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xf86MonPtr DDC
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);
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DisplayModePtr xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC);
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#endif
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