| 1 |
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| 2 | /* xf86DDC.h
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| 3 | *
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| 4 | * This file contains all information to interpret a standard EDIC block
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| 5 | * transmitted by a display device via DDC (Display Data Channel). So far
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| 6 | * there is no information to deal with optional EDID blocks.
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| 7 | * DDC is a Trademark of VESA (Video Electronics Standard Association).
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| 8 | *
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| 9 | * Copyright 1998 by Egbert Eich <[email protected]>
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| 10 | */
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| 11 |
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| 12 | #ifndef XF86_DDC_H
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| 13 | # define XF86_DDC_H
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| 14 |
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| 15 | #include "edid.h"
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| 16 | #include "xf86i2c.h"
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| 17 | #include "xf86str.h"
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| 18 |
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| 19 | /* speed up / slow down */
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| 20 | typedef enum {
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| 21 | DDC_SLOW,
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| 22 | DDC_FAST
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| 23 | } xf86ddcSpeed;
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| 24 |
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| 25 | typedef void (* DDC1SetSpeedProc)(ScrnInfoPtr, xf86ddcSpeed);
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| 26 |
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| 27 | extern xf86MonPtr xf86DoEDID_DDC1(
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| 28 | int scrnIndex,
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| 29 | DDC1SetSpeedProc DDC1SetSpeed,
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| 30 | unsigned int (*DDC1Read)(ScrnInfoPtr)
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| 31 | );
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| 32 |
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| 33 | extern xf86MonPtr xf86DoEDID_DDC2(
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| 34 | int scrnIndex,
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| 35 | I2CBusPtr pBus
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| 36 | );
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| 37 |
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| 38 | extern xf86MonPtr xf86PrintEDID(
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| 39 | xf86MonPtr monPtr
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| 40 | );
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| 41 |
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| 42 | extern xf86MonPtr xf86InterpretEDID(
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| 43 | int screenIndex, Uchar *block
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| 44 | );
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| 45 |
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| 46 | extern void
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| 47 | xf86DDCMonitorSet(int scrnIndex, MonPtr Monitor, xf86MonPtr DDC);
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| 48 |
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| 49 | extern Bool xf86SetDDCproperties(
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| 50 | ScrnInfoPtr pScreen,
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| 51 | xf86MonPtr DDC
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| 52 | );
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| 53 |
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| 54 | DisplayModePtr xf86DDCGetModes(int scrnIndex, xf86MonPtr DDC);
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| 55 |
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| 56 | #endif
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| 57 |
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| 58 |
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