/* $XFree86: xc/programs/Xserver/hw/xfree86/ddc/xf86DDC.h,v 1.12 2004/12/11 20:38:46 dawes Exp $ */ /* 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 */ /* * Copyright (c) 1999-2004 by The XFree86 Project, Inc. * All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject * to the following conditions: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution, and in the same place and form as other copyright, * license and disclaimer information. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: "This product * includes software developed by The XFree86 Project, Inc * (http://www.xfree86.org/) and its contributors", in the same * place and form as other third-party acknowledgments. Alternately, * this acknowledgment may appear in the software itself, in the * same form and location as other such third-party acknowledgments. * * 4. Except as contained in this notice, the name of The XFree86 * Project, Inc shall not be used in advertising or otherwise to * promote the sale, use or other dealings in this Software without * prior written authorization from The XFree86 Project, Inc. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE XFREE86 PROJECT, INC OR ITS CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #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; extern xf86MonPtr xf86DoEDID_DDC1( int scrnIndex, void (*DDC1SetSpeed)(ScrnInfoPtr, xf86ddcSpeed), unsigned int (*DDC1Read)(ScrnInfoPtr) ); extern xf86MonPtr xf86DoEDID_DDC2( int scrnIndex, I2CBusPtr pBus ); extern unsigned char * xf86DoEDID_Option(int scrnIndex, const char *edidString); extern xf86MonPtr xf86PrintEDID( xf86MonPtr monPtr ); extern xf86MonPtr xf86InterpretEDID( int screenIndex, Uchar *block ); extern xf86vdifPtr xf86InterpretVdif( CARD8 *c ); extern Bool xf86SetDDCproperties( ScrnInfoPtr pScreen, xf86MonPtr DDC ); extern void xf86print_vdif( xf86vdifPtr v ); #endif