--- /dev/null
+/*
+ * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
+ *
+ * Display mode initializing code
+ *
+ * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria
+ *
+ * If distributed as part of the Linux kernel, this code is licensed under the
+ * terms of the GPL v2.
+ *
+ * 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 <thomas@winischhofer.net>
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/poll.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/kref.h>
+
+#include "sisusb.h"
+
+#ifdef INCL_SISUSB_CON
+
+#include "sisusb_init.h"
+
+/*********************************************/
+/* POINTER INITIALIZATION */
+/*********************************************/
+
+static void
+SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
+{
+ SiS_Pr->SiS_ModeResInfo = SiSUSB_ModeResInfo;
+ SiS_Pr->SiS_StandTable = SiSUSB_StandTable;
+
+ SiS_Pr->SiS_SModeIDTable = SiSUSB_SModeIDTable;
+ SiS_Pr->SiS_EModeIDTable = SiSUSB_EModeIDTable;
+ SiS_Pr->SiS_RefIndex = SiSUSB_RefIndex;
+ SiS_Pr->SiS_CRT1Table = SiSUSB_CRT1Table;
+
+ SiS_Pr->SiS_VCLKData = SiSUSB_VCLKData;
+}
+
+/*********************************************/
+/* HELPER: Get ModeID */
+/*********************************************/
+
+unsigned short
+SiSUSB_GetModeID(int HDisplay, int VDisplay, int Depth)
+{
+ unsigned short ModeIndex = 0;
+
+ switch (HDisplay)
+ {
+ case 320:
+ if (VDisplay == 200)
+ ModeIndex = ModeIndex_320x200[Depth];
+ else if (VDisplay == 240)
+ ModeIndex = ModeIndex_320x240[Depth];
+ break;
+ case 400:
+ if (VDisplay == 300)
+ ModeIndex = ModeIndex_400x300[Depth];
+ break;
+ case 512:
+ if (VDisplay == 384)
+ ModeIndex = ModeIndex_512x384[Depth];
+ break;
+ case 640:
+ if (VDisplay == 480)
+ ModeIndex = ModeIndex_640x480[Depth];
+ else if (VDisplay == 400)
+ ModeIndex = ModeIndex_640x400[Depth];
+ break;
+ case 720:
+ if (VDisplay == 480)
+ ModeIndex = ModeIndex_720x480[Depth];
+ else if (VDisplay == 576)
+ ModeIndex = ModeIndex_720x576[Depth];
+ break;
+ case 768:
+ if (VDisplay == 576)
+ ModeIndex = ModeIndex_768x576[Depth];
+ break;
+ case 800:
+ if (VDisplay == 600)
+ ModeIndex = ModeIndex_800x600[Depth];
+ else if (VDisplay == 480)
+ ModeIndex = ModeIndex_800x480[Depth];
+ break;
+ case 848:
+ if (VDisplay == 480)
+ ModeIndex = ModeIndex_848x480[Depth];
+ break;
+ case 856:
+ if (VDisplay == 480)
+ ModeIndex = ModeIndex_856x480[Depth];
+ break;
+ case 960:
+ if (VDisplay == 540)
+ ModeIndex = ModeIndex_960x540[Depth];
+ else if (VDisplay == 600)
+ ModeIndex = ModeIndex_960x600[Depth];
+ break;
+ case 1024:
+ if (VDisplay == 576)
+ ModeIndex = ModeIndex_1024x576[Depth];
+ else if (VDisplay == 768)
+ ModeIndex = ModeIndex_1024x768[Depth];
+ break;
+ case 1152:
+ if (VDisplay == 864)
+ ModeIndex = ModeIndex_1152x864[Depth];
+ break;
+ case 1280:
+ switch (VDisplay) {
+ case 720:
+ ModeIndex = ModeIndex_1280x720[Depth];
+ break;
+ case 768:
+ ModeIndex = ModeIndex_1280x768[Depth];
+ break;
+ case 1024:
+ ModeIndex = ModeIndex_1280x1024[Depth];
+ break;
+ }
+ }
+
+ return ModeIndex;
+}
+
+/*********************************************/
+/* HELPER: SetReg, GetReg */
+/*********************************************/
+
+static void
+SiS_SetReg(struct SiS_Private *SiS_Pr, unsigned long port,
+ unsigned short index, unsigned short data)
+{
+ sisusb_setidxreg(SiS_Pr->sisusb, port, index, data);
+}
+
+static void
+SiS_SetRegByte(struct SiS_Private *SiS_Pr, unsigned long port,
+ unsigned short data)
+{
+ sisusb_setreg(SiS_Pr->sisusb, port, data);
+}
+
+static unsigned char
+SiS_GetReg(struct SiS_Private *SiS_Pr, unsigned long port,
+ unsigned short index)
+{
+ u8 data;
+
+ sisusb_getidxreg(SiS_Pr->sisusb, port, index, &data);
+
+ return data;
+}
+
+static unsigned char
+SiS_GetRegByte(struct SiS_Private *SiS_Pr, unsigned long port)
+{
+ u8 data;
+
+ sisusb_getreg(SiS_Pr->sisusb, port, &data);
+
+ return data;
+}
+
+static void
+SiS_SetRegANDOR(struct SiS_Private *SiS_Pr, unsigned long port,
+ unsigned short index, unsigned short DataAND,
+ unsigned short DataOR)
+{
+ sisusb_setidxregandor(SiS_Pr->sisusb, port, index, DataAND, DataOR);
+}
+
+static void
+SiS_SetRegAND(struct SiS_Private *SiS_Pr, unsigned long port,
+ unsigned short index, unsigned short DataAND)
+{
+ sisusb_setidxregand(SiS_Pr->sisusb, port, index, DataAND);
+}
+
+static void
+SiS_SetRegOR(struct SiS_Private *SiS_Pr,unsigned long port,
+ unsigned short index, unsigned short DataOR)
+{
+ sisusb_setidxregor(SiS_Pr->sisusb, port, index, DataOR);
+}
+
+/*********************************************/
+/* HELPER: DisplayOn, DisplayOff */
+/*********************************************/
+
+static void
+SiS_DisplayOn(struct SiS_Private *SiS_Pr)
+{
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0xDF);
+}
+
+/*********************************************/
+/* HELPER: Init Port Addresses */
+/*********************************************/
+
+void
+SiSUSBRegInit(struct SiS_Private *SiS_Pr, unsigned long BaseAddr)
+{
+ SiS_Pr->SiS_P3c4 = BaseAddr + 0x14;
+ SiS_Pr->SiS_P3d4 = BaseAddr + 0x24;
+ SiS_Pr->SiS_P3c0 = BaseAddr + 0x10;
+ SiS_Pr->SiS_P3ce = BaseAddr + 0x1e;
+ SiS_Pr->SiS_P3c2 = BaseAddr + 0x12;
+ SiS_Pr->SiS_P3ca = BaseAddr + 0x1a;
+ SiS_Pr->SiS_P3c6 = BaseAddr + 0x16;
+ SiS_Pr->SiS_P3c7 = BaseAddr + 0x17;
+ SiS_Pr->SiS_P3c8 = BaseAddr + 0x18;
+ SiS_Pr->SiS_P3c9 = BaseAddr + 0x19;
+ SiS_Pr->SiS_P3cb = BaseAddr + 0x1b;
+ SiS_Pr->SiS_P3cc = BaseAddr + 0x1c;
+ SiS_Pr->SiS_P3cd = BaseAddr + 0x1d;
+ SiS_Pr->SiS_P3da = BaseAddr + 0x2a;
+ SiS_Pr->SiS_Part1Port = BaseAddr + SIS_CRT2_PORT_04;
+}
+
+/*********************************************/
+/* HELPER: GetSysFlags */
+/*********************************************/
+
+static void
+SiS_GetSysFlags(struct SiS_Private *SiS_Pr)
+{
+ SiS_Pr->SiS_MyCR63 = 0x63;
+}
+
+/*********************************************/
+/* HELPER: Init PCI & Engines */
+/*********************************************/
+
+static void
+SiSInitPCIetc(struct SiS_Private *SiS_Pr)
+{
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x20, 0xa1);
+ /* - Enable 2D (0x40)
+ * - Enable 3D (0x02)
+ * - Enable 3D vertex command fetch (0x10)
+ * - Enable 3D command parser (0x08)
+ * - Enable 3D G/L transformation engine (0x80)
+ */
+ SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1E, 0xDA);
+}
+
+/*********************************************/
+/* HELPER: SET SEGMENT REGISTERS */
+/*********************************************/
+
+static void
+SiS_SetSegRegLower(struct SiS_Private *SiS_Pr, unsigned short value)
+{
+ unsigned short temp;
+
+ value &= 0x00ff;
+ temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0xf0;
+ temp |= (value >> 4);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
+ temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0xf0;
+ temp |= (value & 0x0f);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
+}
+
+static void
+SiS_SetSegRegUpper(struct SiS_Private *SiS_Pr, unsigned short value)
+{
+ unsigned short temp;
+
+ value &= 0x00ff;
+ temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb) & 0x0f;
+ temp |= (value & 0xf0);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cb, temp);
+ temp = SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd) & 0x0f;
+ temp |= (value << 4);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3cd, temp);
+}
+
+static void
+SiS_SetSegmentReg(struct SiS_Private *SiS_Pr, unsigned short value)
+{
+ SiS_SetSegRegLower(SiS_Pr, value);
+ SiS_SetSegRegUpper(SiS_Pr, value);
+}
+
+static void
+SiS_ResetSegmentReg(struct SiS_Private *SiS_Pr)
+{
+ SiS_SetSegmentReg(SiS_Pr, 0);
+}
+
+static void
+SiS_SetSegmentRegOver(struct SiS_Private *SiS_Pr, unsigned short value)
+{
+ unsigned short temp = value >> 8;
+
+ temp &= 0x07;
+ temp |= (temp << 4);
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1d, temp);
+ SiS_SetSegmentReg(SiS_Pr, value);
+}
+
+static void
+SiS_ResetSegmentRegOver(struct SiS_Private *SiS_Pr)
+{
+ SiS_SetSegmentRegOver(SiS_Pr, 0);
+}
+
+static void
+SiS_ResetSegmentRegisters(struct SiS_Private *SiS_Pr)
+{
+ SiS_ResetSegmentReg(SiS_Pr);
+ SiS_ResetSegmentRegOver(SiS_Pr);
+}
+
+/*********************************************/
+/* HELPER: SearchModeID */
+/*********************************************/
+
+static int
+SiS_SearchModeID(struct SiS_Private *SiS_Pr, unsigned short *ModeNo,
+ unsigned short *ModeIdIndex)
+{
+ if ((*ModeNo) <= 0x13) {
+
+ if ((*ModeNo) != 0x03)
+ return 0;
+
+ (*ModeIdIndex) = 0;
+
+ } else {
+
+ for(*ModeIdIndex = 0; ;(*ModeIdIndex)++) {
+
+ if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID == (*ModeNo))
+ break;
+
+ if (SiS_Pr->SiS_EModeIDTable[*ModeIdIndex].Ext_ModeID == 0xFF)
+ return 0;
+ }
+
+ }
+
+ return 1;
+}
+
+/*********************************************/
+/* HELPER: ENABLE CRT1 */
+/*********************************************/
+
+static void
+SiS_HandleCRT1(struct SiS_Private *SiS_Pr)
+{
+ /* Enable CRT1 gating */
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, SiS_Pr->SiS_MyCR63, 0xbf);
+}
+
+/*********************************************/
+/* HELPER: GetColorDepth */
+/*********************************************/
+
+static unsigned short
+SiS_GetColorDepth(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short ModeIdIndex)
+{
+ static const unsigned short ColorDepth[6] = { 1, 2, 4, 4, 6, 8};
+ unsigned short modeflag;
+ short index;
+
+ if (ModeNo <= 0x13) {
+ modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
+ } else {
+ modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
+ }
+
+ index = (modeflag & ModeTypeMask) - ModeEGA;
+ if (index < 0) index = 0;
+ return ColorDepth[index];
+}
+
+/*********************************************/
+/* HELPER: GetOffset */
+/*********************************************/
+
+static unsigned short
+SiS_GetOffset(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short ModeIdIndex, unsigned short rrti)
+{
+ unsigned short xres, temp, colordepth, infoflag;
+
+ infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
+ xres = SiS_Pr->SiS_RefIndex[rrti].XRes;
+
+ colordepth = SiS_GetColorDepth(SiS_Pr, ModeNo, ModeIdIndex);
+
+ temp = xres / 16;
+
+ if (infoflag & InterlaceMode)
+ temp <<= 1;
+
+ temp *= colordepth;
+
+ if (xres % 16)
+ temp += (colordepth >> 1);
+
+ return temp;
+}
+
+/*********************************************/
+/* SEQ */
+/*********************************************/
+
+static void
+SiS_SetSeqRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
+{
+ unsigned char SRdata;
+ int i;
+
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x00, 0x03);
+
+ SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[0] | 0x20;
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, SRdata);
+
+ for(i = 2; i <= 4; i++) {
+ SRdata = SiS_Pr->SiS_StandTable[StandTableIndex].SR[i-1];
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, SRdata);
+ }
+}
+
+/*********************************************/
+/* MISC */
+/*********************************************/
+
+static void
+SiS_SetMiscRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
+{
+ unsigned char Miscdata = SiS_Pr->SiS_StandTable[StandTableIndex].MISC;
+
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, Miscdata);
+}
+
+/*********************************************/
+/* CRTC */
+/*********************************************/
+
+static void
+SiS_SetCRTCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
+{
+ unsigned char CRTCdata;
+ unsigned short i;
+
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4, 0x11, 0x7f);
+
+ for(i = 0; i <= 0x18; i++) {
+ CRTCdata = SiS_Pr->SiS_StandTable[StandTableIndex].CRTC[i];
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, i, CRTCdata);
+ }
+}
+
+/*********************************************/
+/* ATT */
+/*********************************************/
+
+static void
+SiS_SetATTRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
+{
+ unsigned char ARdata;
+ unsigned short i;
+
+ for(i = 0; i <= 0x13; i++) {
+ ARdata = SiS_Pr->SiS_StandTable[StandTableIndex].ATTR[i];
+ SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, i);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, ARdata);
+ }
+ SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x14);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x00);
+
+ SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c0, 0x20);
+ SiS_GetRegByte(SiS_Pr, SiS_Pr->SiS_P3da);
+}
+
+/*********************************************/
+/* GRC */
+/*********************************************/
+
+static void
+SiS_SetGRCRegs(struct SiS_Private *SiS_Pr, unsigned short StandTableIndex)
+{
+ unsigned char GRdata;
+ unsigned short i;
+
+ for(i = 0; i <= 0x08; i++) {
+ GRdata = SiS_Pr->SiS_StandTable[StandTableIndex].GRC[i];
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3ce, i, GRdata);
+ }
+
+ if (SiS_Pr->SiS_ModeType > ModeVGA) {
+ /* 256 color disable */
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3ce, 0x05, 0xBF);
+ }
+}
+
+/*********************************************/
+/* CLEAR EXTENDED REGISTERS */
+/*********************************************/
+
+static void
+SiS_ClearExt1Regs(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
+{
+ int i;
+
+ for(i = 0x0A; i <= 0x0E; i++) {
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, i, 0x00);
+ }
+
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x37, 0xFE);
+}
+
+/*********************************************/
+/* Get rate index */
+/*********************************************/
+
+static unsigned short
+SiS_GetRatePtr(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short ModeIdIndex)
+{
+ unsigned short rrti, i, index, temp;
+
+ if (ModeNo <= 0x13)
+ return 0xFFFF;
+
+ index = SiS_GetReg(SiS_Pr,SiS_Pr->SiS_P3d4, 0x33) & 0x0F;
+ if (index > 0) index--;
+
+ rrti = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].REFindex;
+ ModeNo = SiS_Pr->SiS_RefIndex[rrti].ModeID;
+
+ i = 0;
+ do {
+ if (SiS_Pr->SiS_RefIndex[rrti + i].ModeID != ModeNo)
+ break;
+
+ temp = SiS_Pr->SiS_RefIndex[rrti + i].Ext_InfoFlag & ModeTypeMask;
+ if (temp < SiS_Pr->SiS_ModeType)
+ break;
+
+ i++;
+ index--;
+ } while(index != 0xFFFF);
+
+ i--;
+
+ return (rrti + i);
+}
+
+/*********************************************/
+/* SYNC */
+/*********************************************/
+
+static void
+SiS_SetCRT1Sync(struct SiS_Private *SiS_Pr, unsigned short rrti)
+{
+ unsigned short sync = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag >> 8;
+ sync &= 0xC0;
+ sync |= 0x2f;
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c2, sync);
+}
+
+/*********************************************/
+/* CRTC/2 */
+/*********************************************/
+
+static void
+SiS_SetCRT1CRTC(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short ModeIdIndex, unsigned short rrti)
+{
+ unsigned char index;
+ unsigned short temp, i, j, modeflag;
+
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3d4,0x11,0x7f);
+
+ modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
+
+ index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRT1CRTC;
+
+ for(i = 0,j = 0; i <= 7; i++, j++) {
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
+ SiS_Pr->SiS_CRT1Table[index].CR[i]);
+ }
+ for(j = 0x10; i <= 10; i++, j++) {
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
+ SiS_Pr->SiS_CRT1Table[index].CR[i]);
+ }
+ for(j = 0x15; i <= 12; i++, j++) {
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, j,
+ SiS_Pr->SiS_CRT1Table[index].CR[i]);
+ }
+ for(j = 0x0A; i <= 15; i++, j++) {
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, j,
+ SiS_Pr->SiS_CRT1Table[index].CR[i]);
+ }
+
+ temp = SiS_Pr->SiS_CRT1Table[index].CR[16] & 0xE0;
+ SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4, 0x0E, temp);
+
+ temp = ((SiS_Pr->SiS_CRT1Table[index].CR[16]) & 0x01) << 5;
+ if (modeflag & DoubleScanMode) temp |= 0x80;
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x09, 0x5F, temp);
+
+ if (SiS_Pr->SiS_ModeType > ModeVGA)
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x14, 0x4F);
+}
+
+/*********************************************/
+/* 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)
+{
+ unsigned short du = SiS_GetOffset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
+ unsigned short infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
+ unsigned short temp;
+
+ temp = (du >> 8) & 0x0f;
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0E, 0xF0, temp);
+
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x13, (du & 0xFF));
+
+ if (infoflag & InterlaceMode) du >>= 1;
+
+ du <<= 5;
+ temp = (du >> 8) & 0xff;
+ if (du & 0xff) temp++;
+ temp++;
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x10, temp);
+}
+
+/*********************************************/
+/* VCLK */
+/*********************************************/
+
+static void
+SiS_SetCRT1VCLK(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short rrti)
+{
+ unsigned short index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
+ unsigned short clka = SiS_Pr->SiS_VCLKData[index].SR2B;
+ unsigned short clkb = SiS_Pr->SiS_VCLKData[index].SR2C;
+
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4,0x31,0xCF);
+
+ SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2B,clka);
+ SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2C,clkb);
+ SiS_SetReg(SiS_Pr,SiS_Pr->SiS_P3c4,0x2D,0x01);
+}
+
+/*********************************************/
+/* FIFO */
+/*********************************************/
+
+static void
+SiS_SetCRT1FIFO_310(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short mi)
+{
+ unsigned short modeflag = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
+
+ /* disable auto-threshold */
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0xFE);
+
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0xAE);
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x09, 0xF0);
+
+ if (ModeNo <= 0x13)
+ return;
+
+ if ((!(modeflag & DoubleScanMode)) || (!(modeflag & HalfDCLK))) {
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x08, 0x34);
+ SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x3D, 0x01);
+ }
+}
+
+/*********************************************/
+/* MODE REGISTERS */
+/*********************************************/
+
+static void
+SiS_SetVCLKState(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short rrti)
+{
+ unsigned short data = 0, VCLK = 0, index = 0;
+
+ if (ModeNo > 0x13) {
+ index = SiS_Pr->SiS_RefIndex[rrti].Ext_CRTVCLK;
+ VCLK = SiS_Pr->SiS_VCLKData[index].CLOCK;
+ }
+
+ if (VCLK >= 166) data |= 0x0c;
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x32, 0xf3, data);
+
+ if (VCLK >= 166)
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1f, 0xe7);
+
+ /* DAC speed */
+ data = 0x03;
+ if (VCLK >= 260)
+ data = 0x00;
+ else if (VCLK >= 160)
+ data = 0x01;
+ else if (VCLK >= 135)
+ data = 0x02;
+
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x07, 0xF8, data);
+}
+
+static void
+SiS_SetCRT1ModeRegs(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short ModeIdIndex, unsigned short rrti)
+{
+ unsigned short data, infoflag = 0, modeflag;
+
+ if (ModeNo <= 0x13)
+ modeflag = SiS_Pr->SiS_SModeIDTable[ModeIdIndex].St_ModeFlag;
+ else {
+ modeflag = SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag;
+ infoflag = SiS_Pr->SiS_RefIndex[rrti].Ext_InfoFlag;
+ }
+
+ /* Disable DPMS */
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x1F, 0x3F);
+
+ data = 0;
+ if (ModeNo > 0x13) {
+ if (SiS_Pr->SiS_ModeType > ModeEGA) {
+ data |= 0x02;
+ data |= ((SiS_Pr->SiS_ModeType - ModeVGA) << 2);
+ }
+ if (infoflag & InterlaceMode) data |= 0x20;
+ }
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x06, 0xC0, data);
+
+ data = 0;
+ if (infoflag & InterlaceMode) {
+ /* data = (Hsync / 8) - ((Htotal / 8) / 2) + 3 */
+ unsigned short hrs = (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x04) |
+ ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0xc0) << 2)) - 3;
+ unsigned short hto = (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x00) |
+ ((SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0b) & 0x03) << 8)) + 5;
+ data = hrs - (hto >> 1) + 3;
+ }
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x19, (data & 0xFF));
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3d4, 0x1a, 0xFC, (data >> 8));
+
+ if (modeflag & HalfDCLK)
+ SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x01, 0x08);
+
+ data = 0;
+ if (modeflag & LineCompareOff)
+ data = 0x08;
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0xB7, data);
+
+ if ((SiS_Pr->SiS_ModeType == ModeEGA) && (ModeNo > 0x13))
+ SiS_SetRegOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x0F, 0x40);
+
+ SiS_SetRegAND(SiS_Pr, SiS_Pr->SiS_P3c4, 0x31, 0xfb);
+
+ data = 0x60;
+ if (SiS_Pr->SiS_ModeType != ModeText) {
+ data ^= 0x60;
+ if (SiS_Pr->SiS_ModeType != ModeEGA)
+ data ^= 0xA0;
+ }
+ SiS_SetRegANDOR(SiS_Pr, SiS_Pr->SiS_P3c4, 0x21, 0x1F, data);
+
+ SiS_SetVCLKState(SiS_Pr, ModeNo, rrti);
+
+ if (SiS_GetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x31) & 0x40)
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x2c);
+ else
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x52, 0x6c);
+}
+
+/*********************************************/
+/* LOAD DAC */
+/*********************************************/
+
+static void
+SiS_WriteDAC(struct SiS_Private *SiS_Pr, unsigned long DACData,
+ unsigned short shiftflag, unsigned short dl, unsigned short ah,
+ unsigned short al, unsigned short dh)
+{
+ unsigned short d1, d2, d3;
+
+ switch (dl) {
+ case 0:
+ d1 = dh; d2 = ah; d3 = al;
+ break;
+ case 1:
+ d1 = ah; d2 = al; d3 = dh;
+ break;
+ default:
+ d1 = al; d2 = dh; d3 = ah;
+ }
+ SiS_SetRegByte(SiS_Pr, DACData, (d1 << shiftflag));
+ SiS_SetRegByte(SiS_Pr, DACData, (d2 << shiftflag));
+ SiS_SetRegByte(SiS_Pr, DACData, (d3 << shiftflag));
+}
+
+static void
+SiS_LoadDAC(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short mi)
+{
+ unsigned short data, data2, time, i, j, k, m, n, o;
+ unsigned short si, di, bx, sf;
+ unsigned long DACAddr, DACData;
+ const unsigned char *table = NULL;
+
+ if (ModeNo < 0x13)
+ data = SiS_Pr->SiS_SModeIDTable[mi].St_ModeFlag;
+ else
+ data = SiS_Pr->SiS_EModeIDTable[mi].Ext_ModeFlag;
+
+ data &= DACInfoFlag;
+
+ j = time = 64;
+ if (data == 0x00)
+ table = SiS_MDA_DAC;
+ else if (data == 0x08)
+ table = SiS_CGA_DAC;
+ else if (data == 0x10)
+ table = SiS_EGA_DAC;
+ else {
+ j = 16;
+ time = 256;
+ table = SiS_VGA_DAC;
+ }
+
+ DACAddr = SiS_Pr->SiS_P3c8;
+ DACData = SiS_Pr->SiS_P3c9;
+ sf = 0;
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
+
+ SiS_SetRegByte(SiS_Pr, DACAddr, 0x00);
+
+ for(i = 0; i < j; i++) {
+ data = table[i];
+ for(k = 0; k < 3; k++) {
+ data2 = 0;
+ if (data & 0x01) data2 += 0x2A;
+ if (data & 0x02) data2 += 0x15;
+ SiS_SetRegByte(SiS_Pr, DACData, (data2 << sf));
+ data >>= 2;
+ }
+ }
+
+ if (time == 256) {
+ for(i = 16; i < 32; i++) {
+ data = table[i] << sf;
+ for(k = 0; k < 3; k++)
+ SiS_SetRegByte(SiS_Pr, DACData, data);
+ }
+ si = 32;
+ for(m = 0; m < 9; m++) {
+ di = si;
+ bx = si + 4;
+ for(n = 0; n < 3; n++) {
+ for(o = 0; o < 5; o++) {
+ SiS_WriteDAC(SiS_Pr, DACData, sf, n,
+ table[di], table[bx], table[si]);
+ si++;
+ }
+ si -= 2;
+ for(o = 0; o < 3; o++) {
+ SiS_WriteDAC(SiS_Pr, DACData, sf, n,
+ table[di], table[si], table[bx]);
+ si--;
+ }
+ }
+ si += 5;
+ }
+ }
+}
+
+/*********************************************/
+/* SET CRT1 REGISTER GROUP */
+/*********************************************/
+
+static void
+SiS_SetCRT1Group(struct SiS_Private *SiS_Pr, unsigned short ModeNo,
+ unsigned short ModeIdIndex)
+{
+ unsigned short StandTableIndex, rrti;
+
+ SiS_Pr->SiS_CRT1Mode = ModeNo;
+
+ if (ModeNo <= 0x13)
+ StandTableIndex = 0;
+ else
+ StandTableIndex = 1;
+
+ SiS_ResetSegmentRegisters(SiS_Pr);
+ SiS_SetSeqRegs(SiS_Pr, StandTableIndex);
+ SiS_SetMiscRegs(SiS_Pr, StandTableIndex);
+ SiS_SetCRTCRegs(SiS_Pr, StandTableIndex);
+ SiS_SetATTRegs(SiS_Pr, StandTableIndex);
+ SiS_SetGRCRegs(SiS_Pr, StandTableIndex);
+ SiS_ClearExt1Regs(SiS_Pr, ModeNo);
+
+ rrti = SiS_GetRatePtr(SiS_Pr, ModeNo, ModeIdIndex);
+
+ if (rrti != 0xFFFF) {
+ SiS_SetCRT1Sync(SiS_Pr, rrti);
+ SiS_SetCRT1CRTC(SiS_Pr, ModeNo, ModeIdIndex, rrti);
+ SiS_SetCRT1Offset(SiS_Pr, ModeNo, ModeIdIndex, rrti);
+ SiS_SetCRT1VCLK(SiS_Pr, ModeNo, rrti);
+ }
+
+ SiS_SetCRT1FIFO_310(SiS_Pr, ModeNo, ModeIdIndex);
+
+ SiS_SetCRT1ModeRegs(SiS_Pr, ModeNo, ModeIdIndex, rrti);
+
+ SiS_LoadDAC(SiS_Pr, ModeNo, ModeIdIndex);
+
+ SiS_DisplayOn(SiS_Pr);
+}
+
+/*********************************************/
+/* SiSSetMode() */
+/*********************************************/
+
+int
+SiSUSBSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
+{
+ unsigned short ModeIdIndex;
+ unsigned long BaseAddr = SiS_Pr->IOAddress;
+
+ SiSUSB_InitPtr(SiS_Pr);
+ SiSUSBRegInit(SiS_Pr, BaseAddr);
+ SiS_GetSysFlags(SiS_Pr);
+
+ if (!(SiS_SearchModeID(SiS_Pr, &ModeNo, &ModeIdIndex)))
+ return 0;
+
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3c4, 0x05, 0x86);
+
+ SiSInitPCIetc(SiS_Pr);
+
+ ModeNo &= 0x7f;
+
+ SiS_Pr->SiS_ModeType =
+ SiS_Pr->SiS_EModeIDTable[ModeIdIndex].Ext_ModeFlag & ModeTypeMask;
+
+ SiS_Pr->SiS_SetFlag = LowModeTests;
+
+ /* Set mode on CRT1 */
+ SiS_SetCRT1Group(SiS_Pr, ModeNo, ModeIdIndex);
+
+ SiS_HandleCRT1(SiS_Pr);
+
+ SiS_DisplayOn(SiS_Pr);
+ SiS_SetRegByte(SiS_Pr, SiS_Pr->SiS_P3c6, 0xFF);
+
+ /* Store mode number */
+ SiS_SetReg(SiS_Pr, SiS_Pr->SiS_P3d4, 0x34, ModeNo);
+
+ return 1;
+}
+
+int
+SiSUSBSetVESAMode(struct SiS_Private *SiS_Pr, unsigned short VModeNo)
+{
+ unsigned short ModeNo = 0;
+ int i;
+
+ SiSUSB_InitPtr(SiS_Pr);
+
+ if (VModeNo == 0x03) {
+
+ ModeNo = 0x03;
+
+ } else {
+
+ i = 0;
+ do {
+
+ if (SiS_Pr->SiS_EModeIDTable[i].Ext_VESAID == VModeNo) {
+ ModeNo = SiS_Pr->SiS_EModeIDTable[i].Ext_ModeID;
+ break;
+ }
+
+ } while (SiS_Pr->SiS_EModeIDTable[i++].Ext_ModeID != 0xff);
+
+ }
+
+ if (!ModeNo)
+ return 0;
+
+ return SiSUSBSetMode(SiS_Pr, ModeNo);
+}
+
+#endif /* INCL_SISUSB_CON */
+
+
+
+
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