linux/drivers/video/fbdev/sis/init.c

/* $XFree86$ */
/* $XdotOrg$ */
/*
 * Mode initializing code (CRT1 section) for
 * for SiS 300/305/540/630/730,
 *     SiS 315/550/[M]650/651/[M]661[FGM]X/[M]74x[GX]/330/[M]76x[GX],
 *     XGI Volari V3XT/V5/V8, Z7
 * (Universal module for Linux kernel framebuffer and X.org/XFree86 4.x)
 *
 * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria
 *
 * If distributed as part of the Linux kernel, the following license terms
 * apply:
 *
 * * This program is free software; you can redistribute it and/or modify
 * * it under the terms of the GNU General Public License as published by
 * * the Free Software Foundation; either version 2 of the named License,
 * * or any later version.
 * *
 * * This program is distributed in the hope that it will be useful,
 * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * * GNU General Public License for more details.
 * *
 * * You should have received a copy of the GNU General Public License
 * * along with this program; if not, write to the Free Software
 * * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
 *
 * Otherwise, the following license terms apply:
 *
 * * 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 EXPRESS 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.
 *
 * Author: 	Thomas Winischhofer <[email protected]>
 *
 * Formerly based on non-functional code-fragements for 300 series by SiS, Inc.
 * Used by permission.
 */

#include "init.h"

#ifdef CONFIG_FB_SIS_300
#include "300vtbl.h"
#endif

#ifdef CONFIG_FB_SIS_315
#include "310vtbl.h"
#endif

#if defined(ALLOC_PRAGMA)
#pragma alloc_text(PAGE,SiSSetMode)
#endif

/*********************************************/
/*         POINTER INITIALIZATION            */
/*********************************************/

#if defined(CONFIG_FB_SIS_300) || defined(CONFIG_FB_SIS_315)
static void
InitCommonPointer(struct SiS_Private *SiS_Pr)
{ … }
#endif

#ifdef CONFIG_FB_SIS_300
static void
InitTo300Pointer(struct SiS_Private *SiS_Pr)
{ … }
#endif

#ifdef CONFIG_FB_SIS_315
static void
InitTo310Pointer(struct SiS_Private *SiS_Pr)
{ … }
#endif

bool
SiSInitPtr(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*            HELPER: Get ModeID             */
/*********************************************/

static
unsigned short
SiS_GetModeID(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay,
		int Depth, bool FSTN, int LCDwidth, int LCDheight)
{ … }

unsigned short
SiS_GetModeID_LCD(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay,
		int Depth, bool FSTN, unsigned short CustomT, int LCDwidth, int LCDheight,
		unsigned int VBFlags2)
{ … }

unsigned short
SiS_GetModeID_TV(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, int Depth,
			unsigned int VBFlags2)
{ … }

unsigned short
SiS_GetModeID_VGA2(int VGAEngine, unsigned int VBFlags, int HDisplay, int VDisplay, int Depth,
			unsigned int VBFlags2)
{ … }


/*********************************************/
/*          HELPER: SetReg, GetReg           */
/*********************************************/

void
SiS_SetReg(SISIOADDRESS port, u8 index, u8 data)
{ … }

void
SiS_SetRegByte(SISIOADDRESS port, u8 data)
{ … }

void
SiS_SetRegShort(SISIOADDRESS port, u16 data)
{ … }

void
SiS_SetRegLong(SISIOADDRESS port, u32 data)
{ … }

u8
SiS_GetReg(SISIOADDRESS port, u8 index)
{ … }

u8
SiS_GetRegByte(SISIOADDRESS port)
{ … }

u16
SiS_GetRegShort(SISIOADDRESS port)
{ … }

u32
SiS_GetRegLong(SISIOADDRESS port)
{ … }

void
SiS_SetRegANDOR(SISIOADDRESS Port, u8 Index, u8 DataAND, u8 DataOR)
{ … }

void
SiS_SetRegAND(SISIOADDRESS Port, u8 Index, u8 DataAND)
{ … }

void
SiS_SetRegOR(SISIOADDRESS Port, u8 Index, u8 DataOR)
{ … }

/*********************************************/
/*      HELPER: DisplayOn, DisplayOff        */
/*********************************************/

void
SiS_DisplayOn(struct SiS_Private *SiS_Pr)
{ … }

void
SiS_DisplayOff(struct SiS_Private *SiS_Pr)
{ … }


/*********************************************/
/*        HELPER: Init Port Addresses        */
/*********************************************/

void
SiSRegInit(struct SiS_Private *SiS_Pr, SISIOADDRESS BaseAddr)
{ … }

/*********************************************/
/*             HELPER: GetSysFlags           */
/*********************************************/

static void
SiS_GetSysFlags(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*         HELPER: Init PCI & Engines        */
/*********************************************/

static void
SiSInitPCIetc(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*             HELPER: SetLVDSetc            */
/*********************************************/

static
void
SiSSetLVDSetc(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*          HELPER: Enable DSTN/FSTN         */
/*********************************************/

void
SiS_SetEnableDstn(struct SiS_Private *SiS_Pr, int enable)
{ … }

void
SiS_SetEnableFstn(struct SiS_Private *SiS_Pr, int enable)
{ … }

/*********************************************/
/*            HELPER: Get modeflag           */
/*********************************************/

unsigned short
SiS_GetModeFlag(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex)
{ … }

/*********************************************/
/*        HELPER: Determine ROM usage        */
/*********************************************/

bool
SiSDetermineROMLayout661(struct SiS_Private *SiS_Pr)
{ … }

static void
SiSDetermineROMUsage(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*        HELPER: SET SEGMENT REGISTERS      */
/*********************************************/

static void
SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value)
{ … }

static void
SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value)
{ … }

static void
SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value)
{ … }

static void
SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr)
{ … }

static void
SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value)
{ … }

static void
SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr)
{ … }

static void
SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*             HELPER: GetVBType             */
/*********************************************/

static
void
SiS_GetVBType(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*           HELPER: Check RAM size          */
/*********************************************/

static bool
SiS_CheckMemorySize(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex)
{ … }

/*********************************************/
/*           HELPER: Get DRAM type           */
/*********************************************/

#ifdef CONFIG_FB_SIS_315
static unsigned char
SiS_Get310DRAMType(struct SiS_Private *SiS_Pr)
{ … }

static unsigned short
SiS_GetMCLK(struct SiS_Private *SiS_Pr)
{ … }
#endif

/*********************************************/
/*           HELPER: ClearBuffer             */
/*********************************************/

static void
SiS_ClearBuffer(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
{ … }

/*********************************************/
/*           HELPER: SearchModeID            */
/*********************************************/

bool
SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
		unsigned short *ModeIdIndex)
{ … }

/*********************************************/
/*            HELPER: GetModePtr             */
/*********************************************/

unsigned short
SiS_GetModePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex)
{ … }

/*********************************************/
/*         HELPERS: Get some indices         */
/*********************************************/

unsigned short
SiS_GetRefCRTVCLK(struct SiS_Private *SiS_Pr, unsigned short Index, int UseWide)
{ … }

unsigned short
SiS_GetRefCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short Index, int UseWide)
{ … }

/*********************************************/
/*           HELPER: LowModeTests            */
/*********************************************/

static bool
SiS_DoLowModeTest(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
{ … }

static void
SiS_SetLowModeTest(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
{ … }

/*********************************************/
/*        HELPER: OPEN/CLOSE CRT1 CRTC       */
/*********************************************/

static void
SiS_OpenCRTC(struct SiS_Private *SiS_Pr)
{ … }

static void
SiS_CloseCRTC(struct SiS_Private *SiS_Pr)
{ … }

static void
SiS_HandleCRT1(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*           HELPER: GetColorDepth           */
/*********************************************/

unsigned short
SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex)
{ … }

/*********************************************/
/*             HELPER: GetOffset             */
/*********************************************/

unsigned short
SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex, unsigned short RRTI)
{ … }

/*********************************************/
/*                   SEQ                     */
/*********************************************/

static void
SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
{ … }

/*********************************************/
/*                  MISC                     */
/*********************************************/

static void
SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
{ … }

/*********************************************/
/*                  CRTC                     */
/*********************************************/

static void
SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
{ … }

/*********************************************/
/*                   ATT                     */
/*********************************************/

static void
SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
{ … }

/*********************************************/
/*                   GRC                     */
/*********************************************/

static void
SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
{ … }

/*********************************************/
/*          CLEAR EXTENDED REGISTERS         */
/*********************************************/

static void
SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
{ … }

/*********************************************/
/*                 RESET VCLK                */
/*********************************************/

static void
SiS_ResetCRT1VCLK(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*                  SYNC                     */
/*********************************************/

static void
SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short RRTI)
{ … }

/*********************************************/
/*                  CRTC/2                   */
/*********************************************/

static void
SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex, unsigned short RRTI)
{ … }

/*********************************************/
/*               OFFSET & PITCH              */
/*********************************************/
/*  (partly overruled by SetPitch() in XF86) */
/*********************************************/

static void
SiS_SetCRT1Offset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex, unsigned short RRTI)
{ … }

/*********************************************/
/*                  VCLK                     */
/*********************************************/

static void
SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex, unsigned short RRTI)
{ … }

/*********************************************/
/*                  FIFO                     */
/*********************************************/

#ifdef CONFIG_FB_SIS_300
void
SiS_GetFIFOThresholdIndex300(struct SiS_Private *SiS_Pr, unsigned short *idx1,
		unsigned short *idx2)
{ … }

static unsigned short
SiS_GetFIFOThresholdA300(unsigned short idx1, unsigned short idx2)
{ … }

unsigned short
SiS_GetFIFOThresholdB300(unsigned short idx1, unsigned short idx2)
{ … }

static unsigned short
SiS_DoCalcDelay(struct SiS_Private *SiS_Pr, unsigned short MCLK, unsigned short VCLK,
		unsigned short colordepth, unsigned short key)
{ … }

static unsigned short
SiS_CalcDelay(struct SiS_Private *SiS_Pr, unsigned short VCLK,
		unsigned short colordepth, unsigned short MCLK)
{ … }

static void
SiS_SetCRT1FIFO_300(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short RefreshRateTableIndex)
{ … }

unsigned short
SiS_GetLatencyFactor630(struct SiS_Private *SiS_Pr, unsigned short index)
{ … }

static unsigned short
SiS_CalcDelay2(struct SiS_Private *SiS_Pr, unsigned char key)
{ … }

static void
SiS_SetCRT1FIFO_630(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
                    unsigned short RefreshRateTableIndex)
{ … }
#endif /* CONFIG_FB_SIS_300 */

#ifdef CONFIG_FB_SIS_315
static void
SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex)
{ … }
#endif

/*********************************************/
/*              MODE REGISTERS               */
/*********************************************/

static void
SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short RefreshRateTableIndex, unsigned short ModeIdIndex)
{ … }

static void
SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex, unsigned short RRTI)
{ … }

#ifdef CONFIG_FB_SIS_315
static void
SiS_SetupDualChip(struct SiS_Private *SiS_Pr)
{ … }
#endif

/*********************************************/
/*                 LOAD DAC                  */
/*********************************************/

static void
SiS_WriteDAC(struct SiS_Private *SiS_Pr, SISIOADDRESS DACData, unsigned short shiftflag,
             unsigned short dl, unsigned short ah, unsigned short al, unsigned short dh)
{ … }

void
SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex)
{ … }

/*********************************************/
/*         SET CRT1 REGISTER GROUP           */
/*********************************************/

static void
SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short ModeIdIndex)
{ … }

/*********************************************/
/*       HELPER: VIDEO BRIDGE PROG CLK       */
/*********************************************/

static void
SiS_InitVB(struct SiS_Private *SiS_Pr)
{ … }

static void
SiS_ResetVB(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*    HELPER: SET VIDEO/CAPTURE REGISTERS    */
/*********************************************/

static void
SiS_StrangeStuff(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*     HELPER: SET AGP TIMING FOR SiS760     */
/*********************************************/

static void
SiS_Handle760(struct SiS_Private *SiS_Pr)
{ … }

/*********************************************/
/*                 SiSSetMode()              */
/*********************************************/

bool
SiSSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
{ … }

#ifndef GETBITSTR
#define GENBITSMASK(mask) …
#define GETBITS(var,mask) …
#define GETBITSTR(val,from,to) …
#endif

void
SiS_CalcCRRegisters(struct SiS_Private *SiS_Pr, int depth)
{ … }

void
SiS_CalcLCDACRT1Timing(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
		unsigned short ModeIdIndex)
{ … }

void
SiS_Generic_ConvertCRData(struct SiS_Private *SiS_Pr, unsigned char *crdata,
			int xres, int yres,
			struct fb_var_screeninfo *var, bool writeres
)
{ … }