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/* $XFree86$ */
/*
* DAC helper functions (Save/Restore, MemClk, etc)
* Definitions and prototypes
*
* Copyright (C) 2001-2004 by Thomas Winischhofer, Vienna, Austria.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 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.
* 3) The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
*/
int SiS_compute_vclk(int Clock, int *out_n, int *out_dn, int *out_div,
int *out_sbit, int *out_scale);
void SISDACPreInit(ScrnInfoPtr pScrn);
void SISLoadPalette(ScrnInfoPtr pScrn, int numColors, int *indicies,
LOCO *colors, VisualPtr pVisual);
void SiSCalcClock(ScrnInfoPtr pScrn, int clock, int max_VLD,
unsigned int *vclk);
void SiSIODump(ScrnInfoPtr pScrn);
int SiSMemBandWidth(ScrnInfoPtr pScrn, BOOLEAN IsForCRT2);
int SiSMclk(SISPtr pSiS);
void SiSRestoreBridge(ScrnInfoPtr pScrn, SISRegPtr sisReg);
extern void SiS6326SetTVReg(ScrnInfoPtr pScrn, CARD8 index, CARD8 data);
extern unsigned char SiS6326GetTVReg(ScrnInfoPtr pScrn, CARD8 index);
extern void SiS6326SetXXReg(ScrnInfoPtr pScrn, CARD8 index, CARD8 data);
extern unsigned char SiS6326GetXXReg(ScrnInfoPtr pScrn, CARD8 index);
extern int SiSCalcVRate(DisplayModePtr mode);
/* Functions from init.c and init301.c */
extern void SiS_UnLockCRT2(SiS_Private *SiS_Pr, PSIS_HW_INFO);
extern void SiS_LockCRT2(SiS_Private *SiS_Pr, PSIS_HW_INFO);
extern void SiS_DisableBridge(SiS_Private *SiS_Pr, PSIS_HW_INFO);
extern void SiS_EnableBridge(SiS_Private *SiS_Pr, PSIS_HW_INFO);
extern USHORT SiS_GetCH700x(SiS_Private *SiS_Pr, USHORT tempbx);
extern void SiS_SetCH700x(SiS_Private *SiS_Pr, USHORT tempbx);
extern USHORT SiS_GetCH701x(SiS_Private *SiS_Pr, USHORT tempbx);
extern void SiS_SetCH701x(SiS_Private *SiS_Pr, USHORT tempbx);
extern USHORT SiS_GetCH70xx(SiS_Private *SiS_Pr, USHORT tempbx);
extern void SiS_SetCH70xx(SiS_Private *SiS_Pr, USHORT tempbx);
extern void SiS_SetCH70xxANDOR(SiS_Private *SiS_Pr, USHORT tempax,USHORT tempbh);
extern void SiS_SetTrumpReg(SiS_Private *SiS_Pr, USHORT tempbx);
extern USHORT SiS_GetTrumpReg(SiS_Private *SiS_Pr, USHORT tempbx);
extern void SiS_DDC2Delay(SiS_Private *SiS_Pr, USHORT delaytime);
extern USHORT SiS_ReadDDC1Bit(SiS_Private *SiS_Pr);
extern USHORT SiS_HandleDDC(SiS_Private *SiS_Pr, unsigned long VBFlags, int VGAEngine,
USHORT adaptnum, USHORT DDCdatatype, unsigned char *buffer);
extern void SiS_SetChrontelGPIO(SiS_Private *SiS_Pr, USHORT myvbinfo);
extern void SiS_DisplayOn(SiS_Private *SiS_Pr);
extern unsigned char SiS_GetSetModeID(ScrnInfoPtr pScrn, unsigned char id);
extern void SiS_SetEnableDstn(SiS_Private *SiS_Pr, int enable);
extern void SiS_SetEnableFstn(SiS_Private *SiS_Pr, int enable);
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