rebase to release_0_3_0 branch rev. 413

1 files changed, 650 insertions, 0 deletions

diff --git a/src/via_ch7xxx.c b/src/via_ch7xxx.c
new file mode 100644
index 0000000..64e3e1f
--- /dev/null
+++ b/src/via_ch7xxx.c
@@ -0,0 +1,650 @@
+/*
+ * Copyright 2005 Terry Lewis. All Rights Reserved.
+ * Copyright 2005 Philip Langdale. All Rights Reserved. (CH7011 additions)
+ * Copyright 2004 The Unichrome Project  [unichrome.sf.net]
+ * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
+ * Copyright 2001-2003 S3 Graphics, 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, sub license,
+ * 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:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "via_driver.h"
+#include "via_vgahw.h"
+#include "via_ch7xxx.h"
+#include "via_id.h"
+
+#ifdef HAVE_DEBUG
+/*
+ *
+ */
+static void
+CH7xxxPrintRegs(ScrnInfoPtr pScrn)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+    CARD8 i, buf;
+    
+    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Printing registers for %s\n",
+	       pBIOSInfo->TVI2CDev->DevName);
+
+    for (i = 0; i < pBIOSInfo->TVNumRegs; i++) {
+	xf86I2CReadByte(pBIOSInfo->TVI2CDev, i, &buf);
+	xf86DrvMsg(pScrn->scrnIndex, X_INFO, "TV%02X: 0x%02X\n", i, buf);
+    }
+
+    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "End of TV registers.\n");
+}
+#endif /* HAVE_DEBUG */
+
+/*
+ *                 
+ */
+I2CDevPtr
+ViaCH7xxxDetect(ScrnInfoPtr pScrn, I2CBusPtr pBus, CARD8 Address)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+    I2CDevPtr pDev = xf86CreateI2CDevRec();
+    CARD8 buf;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "ViaCH7xxxDetect\n"));
+
+    pDev->DevName = "CH7xxx";
+    pDev->SlaveAddr = Address;
+    pDev->pI2CBus = pBus;    
+
+    if (!xf86I2CDevInit(pDev)) {
+	xf86DestroyI2CDevRec(pDev, TRUE);
+	return NULL;
+    }
+    
+
+    if (!xf86I2CReadByte(pDev, 0x4B, &buf)) {
+        xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Unable to read from %s Slave %d.\n",
+                   pBus->BusName, Address);
+        xf86DestroyI2CDevRec(pDev, TRUE);
+        return NULL;
+    }
+    
+    switch (buf) {
+        case 0x17:
+            xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected Chrontel CH7011 TV Encoder\n");
+            pBIOSInfo->TVEncoder = VIA_CH7011;
+            pDev->DevName="CH7011";
+            break;
+        case 0x19:
+            xf86I2CReadByte(pDev, 0x4A, &buf);
+            if (buf == 0x81) {
+                xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected Chrontel CH7019A LVDS Transmitter/TV Encoder\n");
+                pBIOSInfo->TVEncoder = VIA_CH7019A;
+                pDev->DevName="CH7019A";
+            } else {
+                xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected Chrontel CH7019B LVDS Transmitter/TV Encoder\n");
+                pBIOSInfo->TVEncoder = VIA_CH7019B;
+                pDev->DevName="CH7019B";
+            }
+            break;
+        case 0x1B:
+            xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected Chrontel CH7017 LVDS Transmitter\n");
+            pBIOSInfo->TVEncoder = VIA_CH7017;
+            pDev->DevName="CH7017";
+            break;
+        case 0x3A:
+            /* single init table --> single channel LVDS transmitter ? */
+            xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected Chrontel CH7304 LVDS Transmitter\n");
+            pBIOSInfo->TVEncoder = VIA_CH7304;
+            pDev->DevName="CH7304";
+            break;
+        case 0x3B:
+            /* dual init table --> dual channel LVDS transmitter ? */
+            xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Detected Chrontel CH7305 LVDS Transmitter\n");
+            pBIOSInfo->TVEncoder = VIA_CH7305;
+            pDev->DevName="CH7305";
+            break;
+        default:
+            pBIOSInfo->TVEncoder = VIA_NONETV;        
+            xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "Unknown CH7xxx"
+                       " device found. [%x:0x1B contains %x]\n", 
+                       Address, buf);
+            xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Unknown CH7xxx encoder found\n");
+
+            xf86DestroyI2CDevRec(pDev,TRUE);
+            pDev = NULL;
+            break;
+    }
+    
+    return pDev;
+}
+
+/*
+ *
+ */
+
+static void
+CH7xxxSave(ScrnInfoPtr pScrn)
+{
+    int i;
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxSave\n"));
+
+    for (i = 0; i < pBIOSInfo->TVNumRegs; i++)
+        xf86I2CReadByte(pBIOSInfo->TVI2CDev, i, &(pBIOSInfo->TVRegs[i]));
+}
+
+
+static void
+CH7xxxRestore(ScrnInfoPtr pScrn)
+{
+    int i;
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+    
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxRestore\n"));
+
+    for (i = 0; i < pBIOSInfo->TVNumRegs; i++)
+        xf86I2CWriteByte(pBIOSInfo->TVI2CDev, i, pBIOSInfo->TVRegs[i]);
+}
+
+static CARD8
+CH7xxxDACSenseI2C(I2CDevPtr pDev)
+{
+    CARD8  save, sense;
+
+    /* Turn all DACP on*/
+    xf86I2CWriteByte(pDev, 0x49, 0x20);    
+    
+    /* Make sure Bypass mode is disabled (DACBP) bit0 is set to '0' */
+    xf86I2CReadByte(pDev, 0x21, &save);
+    xf86I2CWriteByte(pDev, 0x21, save & ~0x01);
+    
+    /* Set Sense bit0 to '1' */
+    xf86I2CReadByte(pDev, 0x20, &save);
+    xf86I2CWriteByte(pDev, 0x20, save | 0x01);
+
+    /* Set Sense bit0 back to '0' */
+    xf86I2CReadByte(pDev, 0x20, &save);
+    xf86I2CWriteByte(pDev, 0x20, save & ~0x01);
+    
+    /* Read DACT status bits */
+    xf86I2CReadByte(pDev, 0x20, &sense);
+
+    return (sense & 0x1F);
+}
+
+/*
+ *  A CH7xxx hack. (T. Lewis. S-Video fixed by P. Langdale)
+ *
+ *  CH7xxx Cable types (C+S and YcBcR untested and almost certainly wrong) 
+ *  	0x10 = Composite 
+ *      0x0C = S-Video
+ *      0x02 = Composite+S-Video
+ *      0x04 = YcBcR
+ *      0x00 = Nothing Connected
+ */
+
+static Bool
+CH7xxxDACSense(ScrnInfoPtr pScrn)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+    CARD8 sense;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxDACDetect\n"));
+    
+/* is this needed? IH */
+    if (!pBIOSInfo->TVI2CDev ||
+        !pBIOSInfo->TVEncoder)
+	    return FALSE;
+   
+    sense = CH7xxxDACSenseI2C(pBIOSInfo->TVI2CDev);
+
+    /* I'm sure these case values are correct,
+     * but we should get something in any case.
+     * 0x10 (Composite), 0x0C (S-Video) and 0x00 (Nothing connected) 
+     * seem to be correct however.
+     */
+	switch (sense) {
+	    case 0x10:
+		pBIOSInfo->TVOutput = TVOUTPUT_COMPOSITE;
+		xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "CH7xxx: Composite connected.\n");
+		return TRUE;
+	    case 0x0C:
+		pBIOSInfo->TVOutput = TVOUTPUT_SVIDEO;
+		xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "CH7xxx: S-Video connected.\n");
+		return TRUE;
+	    case 0x02:
+		pBIOSInfo->TVOutput = TVOUTPUT_SC;
+		xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "CHxxx: Composite+S-Video connected.\n");
+		return TRUE;
+	    case 0x04:
+		pBIOSInfo->TVOutput = TVOUTPUT_YCBCR;
+		xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "CHxxx: YcBcR Connected.\n");
+		return TRUE;
+	    case 0x00:
+		pBIOSInfo->TVOutput = TVOUTPUT_NONE;
+		xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "CH7xxx: Nothing connected.\n");
+		return FALSE;
+	    default:
+		pBIOSInfo->TVOutput = TVOUTPUT_NONE;
+		xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "CH7xxx: Unknown cable combination: 0x0%2X.\n",sense);
+		return FALSE;
+	}
+}
+
+static CARD8
+CH7011ModeIndex(ScrnInfoPtr pScrn, DisplayModePtr mode)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+    int i;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7011ModeIndex\n"));    
+    for (i = 0; CH7011Table[i].Width; i++) {
+        if ((CH7011Table[i].Width == mode->CrtcHDisplay) &&
+            (CH7011Table[i].Height == mode->CrtcVDisplay) &&
+            (CH7011Table[i].Standard == pBIOSInfo->TVType) &&
+            !(strcmp(CH7011Table[i].name, mode->name)))
+            return i;
+    }
+    xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "CH7011ModeIndex:"
+               " Mode \"%s\" not found in Table\n", mode->name);
+    return 0xFF;
+}
+
+static CARD8
+CH7019ModeIndex(ScrnInfoPtr pScrn, DisplayModePtr mode)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+    int i;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7019ModeIndex\n"));    
+    for (i = 0; CH7019Table[i].Width; i++) {
+        if ((CH7019Table[i].Width == mode->CrtcHDisplay) &&
+            (CH7019Table[i].Height == mode->CrtcVDisplay) &&
+            (CH7019Table[i].Standard == pBIOSInfo->TVType) &&
+            !(strcmp(CH7019Table[i].name, mode->name)))
+            return i;
+    }
+    xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "CH7019ModeIndex:"
+               " Mode \"%s\" not found in Table\n", mode->name);
+    return 0xFF;
+}
+
+/*
+ *
+ */
+static ModeStatus
+CH7xxxModeValid(ScrnInfoPtr pScrn, DisplayModePtr mode)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxModeValid\n"));
+
+    if ((mode->PrivSize != sizeof(struct CH7xxxModePrivate)) ||
+        ((mode->Private != (void *) &CH7xxxModePrivateNTSC) &&
+         (mode->Private != (void *) &CH7xxxModePrivatePAL))) {
+        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Not a mode defined by the TV Encoder.\n");
+        return MODE_BAD;
+    }
+
+    if ((pBIOSInfo->TVType == TVTYPE_NTSC) &&
+        (mode->Private != (void *) &CH7xxxModePrivateNTSC)) {
+        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "TV standard is NTSC. This is a PAL mode.\n");
+        return MODE_BAD;
+    } else if ((pBIOSInfo->TVType == TVTYPE_PAL) &&
+               (mode->Private != (void *) &CH7xxxModePrivatePAL)) {
+        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "TV standard is PAL. This is a NTSC mode.\n");
+        return MODE_BAD;
+    }
+
+    if (pBIOSInfo->TVEncoder == VIA_CH7011)
+    {
+        if (CH7011ModeIndex(pScrn, mode) != 0xFF)
+            return MODE_OK;
+    }
+    else
+    {
+        if (CH7019ModeIndex(pScrn, mode) != 0xFF)
+            return MODE_OK;
+    }
+    return MODE_BAD;
+}
+
+static void
+CH7xxxModeI2C(ScrnInfoPtr pScrn, DisplayModePtr mode)
+{
+    VIAPtr pVia = VIAPTR(pScrn);
+    VIABIOSInfoPtr pBIOSInfo = pVia->pBIOSInfo;
+
+    CARD8   i, j;
+
+    VIABIOSTVMASKTableRec Mask;
+    struct CH7xxxTableRec Table;
+
+    if (pBIOSInfo->TVEncoder == VIA_CH7011)
+    {
+        Table = CH7011Table[CH7011ModeIndex(pScrn, mode)];
+        Mask = ch7011MaskTable;
+    }
+    else
+    {
+        Table = CH7019Table[CH7019ModeIndex(pScrn, mode)];
+        Mask = ch7019MaskTable;
+    }
+
+    DEBUG(xf86DrvMsg(pBIOSInfo->scrnIndex, X_INFO, "CH7011ModeI2C\n"));
+
+    xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x3E);
+    xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x1E, 0xD0);
+
+    for (i = 0,j = 0; (j < Mask.numTV) && (i < VIA_BIOS_TABLE_NUM_TV_REG); i++) {
+        if (Mask.TV[i] == 0xFF) {
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, i, Table.TV[i]);
+            j++;
+        } else {
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, i, pBIOSInfo->TVRegs[i]);
+        }
+    }
+
+    if ((pBIOSInfo->TVType == TVTYPE_NTSC) && pBIOSInfo->TVDotCrawl) {
+        CARD16 *DotCrawl = Table.DotCrawlNTSC;
+        CARD8 address, save;
+        
+        for (i = 1; i < (DotCrawl[0] + 1); i++) {
+            address = (CARD8)(DotCrawl[i] & 0xFF);
+            
+            save = (CARD8)(DotCrawl[i] >> 8);
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, address, save);
+        }
+    }
+
+    /*
+     * Only Composite and SVideo have been tested.
+     */
+    switch(pBIOSInfo->TVOutput){
+        case TVOUTPUT_COMPOSITE:
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x2E);
+            break;
+        case TVOUTPUT_SVIDEO:
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x32);
+            break;
+        case TVOUTPUT_SC:
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x3C);
+            break;
+        case TVOUTPUT_YCBCR:
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x3A);
+            break;
+        default:
+            break;
+    }
+
+    if (pVia->IsSecondary) { /* Patch as setting 2nd path */
+        j = (CARD8)(Mask.misc2 >> 5);
+        for (i = 0; i < j; i++)
+            xf86I2CWriteByte(pBIOSInfo->TVI2CDev, Table.Patch2[i] & 0xFF, Table.Patch2[i] >> 8);
+    }
+}
+
+static void
+CH7xxxModeCrtc(ScrnInfoPtr pScrn, DisplayModePtr mode)
+{
+    vgaHWPtr hwp = VGAHWPTR(pScrn);
+    VIAPtr pVia =  VIAPTR(pScrn);
+    VIABIOSInfoPtr pBIOSInfo = pVia->pBIOSInfo;
+    CARD8  *CRTC, *Misc;
+    int  i, j;
+
+    VIABIOSTVMASKTableRec Mask;
+    struct CH7xxxTableRec Table;
+
+    if (pBIOSInfo->TVEncoder == VIA_CH7011)
+    {
+        Table = CH7011Table[CH7011ModeIndex(pScrn, mode)];
+        Mask = ch7011MaskTable;
+    }
+    else
+    {
+        Table = CH7019Table[CH7019ModeIndex(pScrn, mode)];
+        Mask = ch7019MaskTable;
+    }
+
+    DEBUG(xf86DrvMsg(pBIOSInfo->scrnIndex, X_INFO, "CH7xxxModeCrtc\n"));
+
+    if (pVia->IsSecondary) {
+        switch (pScrn->bitsPerPixel) {
+            case 16:
+                CRTC = Table.CRTC2_16BPP;
+                break;
+            case 24:
+            case 32:
+                CRTC = Table.CRTC2_32BPP;
+                break;
+            case 8:
+            default:
+                CRTC = Table.CRTC2_8BPP;
+                break;	
+        }
+        Misc = Table.Misc2;
+        
+        
+        for (i = 0, j = 0; i < Mask.numCRTC2; j++) {
+            if (Mask.CRTC2[j] == 0xFF) {
+                hwp->writeCrtc(hwp, j + 0x50, CRTC[j]);
+                i++;
+            }
+        }
+        
+        if (Mask.misc2 & 0x18) {
+            pBIOSInfo->Clock = (Misc[3] << 8) & Misc[4];
+            /* VIASetUseExternalClock(hwp); */
+        }
+        
+        ViaCrtcMask(hwp, 0x6A, 0xC0, 0xC0);
+        ViaCrtcMask(hwp, 0x6B, 0x01, 0x01);
+        ViaCrtcMask(hwp, 0x6C, 0x01, 0x01);
+        
+        /* Disable LCD Scaling */
+        if (!pVia->SAMM || pVia->FirstInit)
+            hwp->writeCrtc(hwp, 0x79, 0x00);}
+    else {    
+        
+        CRTC = Table.CRTC1;
+        Misc = Table.Misc1;
+        
+        for (i = 0, j = 0; i < Mask.numCRTC1; j++) {
+            if (Mask.CRTC1[j] == 0xFF) {
+                hwp->writeCrtc(hwp, j, CRTC[j]);
+                i++;
+            }
+        }
+
+        ViaCrtcMask(hwp, 0x33, Misc[0], 0x20);
+        hwp->writeCrtc(hwp, 0x6A, Misc[1]);
+
+        if ((pVia->Chipset == VIA_CLE266) &&
+            CLE266_REV_IS_AX(pVia->ChipRev)) {
+            hwp->writeCrtc(hwp, 0x6B, Misc[2] | 0x81);
+            /* Fix TV clock Polarity for CLE266A2 */
+            if (pVia->ChipRev == 0x02)
+                hwp->writeCrtc(hwp, 0x6C, Misc[3] | 0x01);
+        } else
+            hwp->writeCrtc(hwp, 0x6B, Misc[2] | 0x01);
+        
+        if (Mask.misc1 & 0x30) {
+            /* CLE266Ax use 2x XCLK */
+            if ((pVia->Chipset == VIA_CLE266) &&
+                CLE266_REV_IS_AX(pVia->ChipRev))
+                pBIOSInfo->Clock = 0x471C;
+            else
+                pBIOSInfo->Clock = (Misc[4] << 8) | Misc[5];
+        }
+        
+        ViaCrtcMask(hwp, 0x6A, 0x40, 0x40);
+        ViaCrtcMask(hwp, 0x6B, 0x01, 0x01);
+        ViaCrtcMask(hwp, 0x6C, 0x01, 0x01);
+    }
+    
+    ViaSeqMask(hwp, 0x1E, 0xC0, 0xC0); /* Enable DI0/DVP0 */
+}
+
+
+/*
+ *
+ */
+static void
+CH7xxxTVPower(ScrnInfoPtr pScrn, Bool On)
+{
+	VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+
+	if (On){
+		DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxTVPower: On\n"));
+	 	xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x20);
+	}else{
+		DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxTVPower: Off\n"));
+	 	xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x49, 0x3E);
+		xf86I2CWriteByte(pBIOSInfo->TVI2CDev, 0x1E, 0xD0);
+    }
+}
+
+static void
+CH7019LCDPower(ScrnInfoPtr pScrn, Bool On)
+{
+	VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+	CARD8 W_Buffer[2], R_Buffer[1];
+	int i;
+	
+	if (On){
+		DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxLCDPower: On\n"));
+		W_Buffer[0] = 0x63;
+		W_Buffer[1] = 0x4B;
+		xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+		W_Buffer[0] = 0x66;
+		W_Buffer[1] = 0x20;
+		xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+		
+		for (i = 0; i < 10; i++) {
+			W_Buffer[0] = 0x63;
+			xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,1, R_Buffer,1);
+			usleep(100);
+			W_Buffer[0] = 0x63;
+			W_Buffer[1] = (R_Buffer[0] | 0x40);
+			xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+			DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_PROBED, 
+                             "CH7xxxLCDPower: [%d]write 0x63 = %X!\n", i+1, W_Buffer[1]));
+			usleep(1);
+			W_Buffer[0] = 0x63;
+			W_Buffer[1] &= ~0x40;
+			xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+			DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_PROBED, 
+                             "CH7xxxLCDPower: [%d]write 0x63 = %X!\n", i+1, W_Buffer[1]));
+			usleep(100);
+			W_Buffer[0] = 0x66;
+			xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,1, R_Buffer,1);
+			
+			if (((R_Buffer[0] & 0x44) == 0x44) || (i >= 9)) {  
+				/* PLL lock OK, Turn on VDD */
+				usleep(500);
+				W_Buffer[1] = R_Buffer[0] | 0x01;
+				xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+				DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_PROBED, 
+						 "CH7xxxLCDPower: CH7019 PLL lock ok!\n"));
+				/* reset data path */
+				W_Buffer[0] = 0x48;
+				xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,1, R_Buffer,1);
+				W_Buffer[1] = R_Buffer[0] & ~0x08;
+				xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+				usleep(1);
+				W_Buffer[1] = R_Buffer[0];
+				xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+				break;
+			}
+			  
+            DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_PROBED, 
+                             "CH7xxxLCDPower: [%d]CH7019 PLL lock fail!\n", i+1));
+            DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_PROBED, 
+                             "CH7xxxLCDPower: [%d]0x66 = %X!\n", i+1, R_Buffer[0]));
+		}
+	}else{
+		DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "CH7xxxLCDPower: Off\n"));
+		/* Turn off VDD (Turn off backlignt only) */
+		W_Buffer[0] = 0x66;
+		xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,1, R_Buffer,1);
+		W_Buffer[1] &= ~0x01;
+		xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+		usleep(100);
+		/* Turn off LVDS path */
+		W_Buffer[0] = 0x63;
+		xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,1, R_Buffer,1);
+		W_Buffer[1] = (R_Buffer[0] | 0x40);
+		xf86I2CWriteRead(pBIOSInfo->TVI2CDev, W_Buffer,2, NULL,0);
+	}
+}
+
+/*
+ *
+ */
+void
+ViaCH7xxxInit(ScrnInfoPtr pScrn)
+{
+    VIABIOSInfoPtr pBIOSInfo = VIAPTR(pScrn)->pBIOSInfo;
+
+    DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "ViaCH7xxxInit\n"));
+
+    switch (pBIOSInfo->TVEncoder) {
+        case VIA_CH7011:
+            pBIOSInfo->TVSave = CH7xxxSave;
+            pBIOSInfo->TVRestore = CH7xxxRestore;
+            pBIOSInfo->TVDACSense = CH7xxxDACSense;
+            pBIOSInfo->TVModeValid = CH7xxxModeValid;
+            pBIOSInfo->TVModeI2C = CH7xxxModeI2C;
+            pBIOSInfo->TVModeCrtc = CH7xxxModeCrtc;
+            pBIOSInfo->TVPower = CH7xxxTVPower;
+            pBIOSInfo->TVModes = CH7011Modes;
+            pBIOSInfo->LCDPower = NULL;
+            pBIOSInfo->TVNumRegs = CH_7011_MAX_NUM_REG;
+#ifdef HAVE_DEBUG
+            pBIOSInfo->TVPrintRegs = CH7xxxPrintRegs;
+#endif
+            break;
+        case VIA_CH7019A:
+        case VIA_CH7019B:
+            pBIOSInfo->TVDACSense = CH7xxxDACSense;
+            pBIOSInfo->TVSave = CH7xxxSave;
+            pBIOSInfo->TVRestore = CH7xxxRestore;
+            pBIOSInfo->TVModeValid = CH7xxxModeValid;
+            pBIOSInfo->TVModeI2C = CH7xxxModeI2C;
+            pBIOSInfo->TVModeCrtc = CH7xxxModeCrtc;
+            pBIOSInfo->TVPower = CH7xxxTVPower;
+            pBIOSInfo->TVModes = CH7019Modes;
+            pBIOSInfo->LCDPower = CH7019LCDPower;
+            pBIOSInfo->TVNumRegs = CH_7019_MAX_NUM_REG;
+#ifdef HAVE_DEBUG
+            pBIOSInfo->TVPrintRegs = CH7xxxPrintRegs;
+#endif
+            break;
+        default:
+            DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "ViaCH7xxxInit missing\n"));
+            break;
+    }
+
+    /* Save before continuing */
+    if (pBIOSInfo->TVSave)
+        pBIOSInfo->TVSave(pScrn);
+}