Initial revisionXORG-STABLE

5 files changed, 1083 insertions, 0 deletions

diff --git a/man/suntcx.man b/man/suntcx.man
new file mode 100644
index 0000000..06bf55c
--- /dev/null
+++ b/man/suntcx.man
@@ -0,0 +1,30 @@
+.\" $XFree86: xc/programs/Xserver/hw/xfree86/drivers/suntcx/suntcx.man,v 1.2 2001/01/27 18:20:54 dawes Exp $ 
+.\" shorthand for double quote that works everywhere.
+.ds q \N'34'
+.TH SUNTCX __drivermansuffix__ __vendorversion__
+.SH NAME
+suntcx \- TCX video driver
+.SH SYNOPSIS
+.nf
+.B "Section \*qDevice\*q"
+.BI "  Identifier \*q"  devname \*q
+.B  "  Driver \*qsuntcx\*q"
+\ \ ...
+.B EndSection
+.fi
+.SH DESCRIPTION
+.B suntcx
+is an XFree86 driver for Sun TCX video cards.
+THIS MAN PAGE NEEDS TO BE FILLED IN.
+.SH SUPPORTED HARDWARE
+The
+.B suntcx
+driver supports...
+.SH CONFIGURATION DETAILS
+Please refer to XF86Config(__filemansuffix__) for general configuration
+details.  This section only covers configuration details specific to this
+driver.
+.SH "SEE ALSO"
+XFree86(1), XF86Config(__filemansuffix__), xf86config(1), Xserver(1), X(__miscmansuffix__)
+.SH AUTHORS
+Authors include: Jakub Jelinek <jakub@redhat.com>
diff --git a/src/tcx.h b/src/tcx.h
new file mode 100644
index 0000000..2528a71
--- /dev/null
+++ b/src/tcx.h
@@ -0,0 +1,70 @@
+/*
+ * TCX framebuffer - defines.
+ *
+ * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
+ *
+ * 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:
+ *
+ * The above copyright notice and this permission notice 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JAKUB JELINEK 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.
+ */
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/suntcx/tcx.h,v 1.2 2001/05/04 19:05:46 dawes Exp $ */
+
+#ifndef TCX_H
+#define TCX_H
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "xf86RamDac.h"
+#include "Xmd.h"
+#include "gcstruct.h"
+#include "xf86sbusBus.h"
+#include "tcx_regs.h"
+
+/* Various offsets in virtual (ie. mmap()) spaces Linux and Solaris support. */
+#define TCX_RAM8_VOFF		0x00000000
+#define TCX_RAM24_VOFF		0x01000000
+#define TCX_CPLANE_VOFF		0x28000000
+#define TCX_TEC_VOFF		0x70000000
+#define TCX_BTREGS_VOFF		0x70002000
+#define TCX_THC_VOFF		0x70004000
+#define TCX_DHC_VOFF		0x70008000
+#define TCX_ALT_VOFF		0x7000a000
+#define TCX_SYNC_VOFF		0x7000e000
+
+typedef struct {
+	unsigned char	*fb;
+	int		width;
+	int		height;
+	unsigned int	*cplane;
+	TcxThcPtr	thc;
+	sbusDevicePtr	psdp;
+	CloseScreenProcPtr CloseScreen;
+	Bool		HWCursor;
+	xf86CursorInfoPtr CursorInfoRec;
+	unsigned int	CursorXY;
+	int		CursorBg, CursorFg;
+	Bool		CursorEnabled;
+	unsigned char	CursorShiftX, CursorShiftY;
+	unsigned char	*CursorData;
+	OptionInfoPtr	Options;
+} TcxRec, *TcxPtr;
+
+#define TCX_CPLANE_MODE		0x03000000
+
+#define GET_TCX_FROM_SCRN(p)    ((TcxPtr)((p)->driverPrivate))
+
+#endif /* TCX_H */
diff --git a/src/tcx_cursor.c b/src/tcx_cursor.c
new file mode 100644
index 0000000..61ec1d6
--- /dev/null
+++ b/src/tcx_cursor.c
@@ -0,0 +1,156 @@
+/*
+ * Hardware cursor support for TCX
+ *
+ * Copyright 2000 by Jakub Jelinek <jakub@redhat.com>.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of Jakub
+ * Jelinek not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission.  Jakub Jelinek makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * JAKUB JELINEK DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL JAKUB JELINEK BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/suntcx/tcx_cursor.c,v 1.1 2000/06/30 17:15:16 dawes Exp $ */
+
+#include "tcx.h"
+
+static void TCXLoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src);
+static void TCXShowCursor(ScrnInfoPtr pScrn);
+static void TCXHideCursor(ScrnInfoPtr pScrn);
+static void TCXSetCursorPosition(ScrnInfoPtr pScrn, int x, int y);
+static void TCXSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg);
+
+static void
+TCXLoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src)
+{
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+    int i, x, y;
+    unsigned int *data = (unsigned int *)src;
+        
+    pTcx->CursorData = src;
+    x = pTcx->CursorShiftX;
+    y = pTcx->CursorShiftY;
+    if (x >= 32 || y >= 32)
+	y = 32;
+    data += y;
+    for (i = 0; i < 32 - y; i++)
+	pTcx->thc->thc_cursmask[i] = *data++ << x;
+    for (; i < 32; i++)
+	pTcx->thc->thc_cursmask[i] = 0;
+    data += y;
+    for (i = 0; i < 32 - y; i++)
+	pTcx->thc->thc_cursbits[i] = *data++ << x;
+    for (; i < 32; i++)
+	pTcx->thc->thc_cursbits[i] = 0;
+}
+
+static void 
+TCXShowCursor(ScrnInfoPtr pScrn)
+{
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    pTcx->thc->thc_cursxy = pTcx->CursorXY;
+    pTcx->CursorEnabled = TRUE;
+}
+
+static void
+TCXHideCursor(ScrnInfoPtr pScrn)
+{
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    pTcx->thc->thc_cursxy = ((65536 - 32) << 16) | (65536 - 32);
+    pTcx->CursorEnabled = FALSE;
+}
+
+static void
+TCXSetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
+{
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+    int CursorShiftX = 0, CursorShiftY = 0;
+    
+    if (x < 0) {
+	CursorShiftX = -x;
+	x = 0;
+	if (CursorShiftX > 32)
+	    CursorShiftX = 32;
+    }
+    if (y < 0) {
+	CursorShiftY = -y;
+	y = 0;
+	if (CursorShiftY > 32)
+	    CursorShiftY = 32;
+    }
+    if ((CursorShiftX != pTcx->CursorShiftX ||
+	 CursorShiftY != pTcx->CursorShiftY) &&
+	 pTcx->CursorData != NULL) {
+	pTcx->CursorShiftX = CursorShiftX;
+	pTcx->CursorShiftY = CursorShiftY;
+	TCXLoadCursorImage(pScrn, pTcx->CursorData);
+    }
+
+    pTcx->CursorXY = ((x & 0xffff) << 16) | (y & 0xffff);
+    if (pTcx->CursorEnabled)
+	pTcx->thc->thc_cursxy = pTcx->CursorXY;
+}
+
+static void
+TCXSetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
+{
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    if (bg != pTcx->CursorBg || fg != pTcx->CursorFg) {
+	xf86SbusSetOsHwCursorCmap(pTcx->psdp, bg, fg);
+	pTcx->CursorBg = bg;
+	pTcx->CursorFg = fg;
+    }
+}
+
+Bool 
+TCXHWCursorInit(ScreenPtr pScreen)
+{
+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+    TcxPtr pTcx;
+    xf86CursorInfoPtr infoPtr;
+
+    pTcx = GET_TCX_FROM_SCRN(pScrn);
+    pTcx->CursorXY = 0;
+    pTcx->CursorBg = pTcx->CursorFg = 0;
+    pTcx->CursorEnabled = FALSE;
+    pTcx->CursorShiftX = 0;
+    pTcx->CursorShiftY = 0;
+    pTcx->CursorData = NULL;
+
+    infoPtr = xf86CreateCursorInfoRec();
+    if(!infoPtr) return FALSE;
+    
+    pTcx->CursorInfoRec = infoPtr;
+
+    infoPtr->MaxWidth = 32;
+    infoPtr->MaxHeight = 32;
+    infoPtr->Flags = HARDWARE_CURSOR_AND_SOURCE_WITH_MASK |
+	HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK |
+	HARDWARE_CURSOR_SOURCE_MASK_NOT_INTERLEAVED |
+	HARDWARE_CURSOR_TRUECOLOR_AT_8BPP;
+
+    infoPtr->SetCursorColors = TCXSetCursorColors;
+    infoPtr->SetCursorPosition = TCXSetCursorPosition;
+    infoPtr->LoadCursorImage = TCXLoadCursorImage;
+    infoPtr->HideCursor = TCXHideCursor;
+    infoPtr->ShowCursor = TCXShowCursor;
+    infoPtr->UseHWCursor = NULL;
+
+    return xf86InitCursor(pScreen, infoPtr);
+}
diff --git a/src/tcx_driver.c b/src/tcx_driver.c
new file mode 100644
index 0000000..83a1947
--- /dev/null
+++ b/src/tcx_driver.c
@@ -0,0 +1,771 @@
+/*
+ * TCX framebuffer driver.
+ *
+ * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
+ *
+ * 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:
+ *
+ * The above copyright notice and this permission notice 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JAKUB JELINEK 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.
+ */
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/suntcx/tcx_driver.c,v 1.6 2001/08/07 07:04:51 keithp Exp $ */
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "xf86Version.h"
+#include "mipointer.h"
+#include "mibstore.h"
+#include "micmap.h"
+
+#include "fb.h"
+#include "xf86cmap.h"
+#include "tcx.h"
+
+static const OptionInfoRec * TCXAvailableOptions(int chipid, int busid);
+static void	TCXIdentify(int flags);
+static Bool	TCXProbe(DriverPtr drv, int flags);
+static Bool	TCXPreInit(ScrnInfoPtr pScrn, int flags);
+static Bool	TCXScreenInit(int Index, ScreenPtr pScreen, int argc,
+			      char **argv);
+static Bool	TCXEnterVT(int scrnIndex, int flags);
+static void	TCXLeaveVT(int scrnIndex, int flags);
+static Bool	TCXCloseScreen(int scrnIndex, ScreenPtr pScreen);
+static Bool	TCXSaveScreen(ScreenPtr pScreen, int mode);
+static void	TCXInitCplane24(ScrnInfoPtr pScrn);
+
+/* Required if the driver supports mode switching */
+static Bool	TCXSwitchMode(int scrnIndex, DisplayModePtr mode, int flags);
+/* Required if the driver supports moving the viewport */
+static void	TCXAdjustFrame(int scrnIndex, int x, int y, int flags);
+
+/* Optional functions */
+static void	TCXFreeScreen(int scrnIndex, int flags);
+static int	TCXValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose,
+			     int flags);
+
+void TCXSync(ScrnInfoPtr pScrn);
+
+#define VERSION 4000
+#define TCX_NAME "SUNTCX"
+#define TCX_DRIVER_NAME "suntcx"
+#define TCX_MAJOR_VERSION 1
+#define TCX_MINOR_VERSION 0
+#define TCX_PATCHLEVEL 0
+
+/* 
+ * This contains the functions needed by the server after loading the driver
+ * module.  It must be supplied, and gets passed back by the SetupProc
+ * function in the dynamic case.  In the static case, a reference to this
+ * is compiled in, and this requires that the name of this DriverRec be
+ * an upper-case version of the driver name.
+ */
+
+DriverRec SUNTCX = {
+    VERSION,
+    TCX_DRIVER_NAME,
+    TCXIdentify,
+    TCXProbe,
+    TCXAvailableOptions,
+    NULL,
+    0
+};
+
+typedef enum {
+    OPTION_SW_CURSOR,
+    OPTION_HW_CURSOR
+} TCXOpts;
+
+static const OptionInfoRec TCXOptions[] = {
+    { OPTION_SW_CURSOR,		"SWcursor",	OPTV_BOOLEAN,	{0}, FALSE },
+    { OPTION_HW_CURSOR,		"HWcursor",	OPTV_BOOLEAN,	{0}, FALSE },
+    { -1,			NULL,		OPTV_NONE,	{0}, FALSE }
+};
+
+#ifdef XFree86LOADER
+
+static MODULESETUPPROTO(tcxSetup);
+
+static XF86ModuleVersionInfo suntcxVersRec =
+{
+	"suntcx",
+	MODULEVENDORSTRING,
+	MODINFOSTRING1,
+	MODINFOSTRING2,
+	XF86_VERSION_CURRENT,
+	TCX_MAJOR_VERSION, TCX_MINOR_VERSION, TCX_PATCHLEVEL,
+	ABI_CLASS_VIDEODRV,
+	ABI_VIDEODRV_VERSION,
+	MOD_CLASS_VIDEODRV,
+	{0,0,0,0}
+};
+
+XF86ModuleData suntcxModuleData = { &suntcxVersRec, tcxSetup, NULL };
+
+pointer
+tcxSetup(pointer module, pointer opts, int *errmaj, int *errmin)
+{
+    static Bool setupDone = FALSE;
+
+    if (!setupDone) {
+	setupDone = TRUE;
+	xf86AddDriver(&SUNTCX, module, 0);
+
+	/*
+	 * Modules that this driver always requires can be loaded here
+	 * by calling LoadSubModule().
+	 */
+
+	/*
+	 * The return value must be non-NULL on success even though there
+	 * is no TearDownProc.
+	 */
+	return (pointer)TRUE;
+    } else {
+	if (errmaj) *errmaj = LDR_ONCEONLY;
+	return NULL;
+    }
+}
+
+#endif /* XFree86LOADER */
+
+static Bool
+TCXGetRec(ScrnInfoPtr pScrn)
+{
+    /*
+     * Allocate an TcxRec, and hook it into pScrn->driverPrivate.
+     * pScrn->driverPrivate is initialised to NULL, so we can check if
+     * the allocation has already been done.
+     */
+    if (pScrn->driverPrivate != NULL)
+	return TRUE;
+
+    pScrn->driverPrivate = xnfcalloc(sizeof(TcxRec), 1);
+    return TRUE;
+}
+
+static void
+TCXFreeRec(ScrnInfoPtr pScrn)
+{
+    TcxPtr pTcx;
+
+    if (pScrn->driverPrivate == NULL)
+	return;
+
+    pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    xfree(pScrn->driverPrivate);
+    pScrn->driverPrivate = NULL;
+
+    return;
+}
+
+static const OptionInfoRec *
+TCXAvailableOptions(int chipid, int busid)
+{
+    return TCXOptions;
+}
+
+/* Mandatory */
+static void
+TCXIdentify(int flags)
+{
+    xf86Msg(X_INFO, "%s: driver for TCX\n", TCX_NAME);
+}
+
+
+/* Mandatory */
+static Bool
+TCXProbe(DriverPtr drv, int flags)
+{
+    int i;
+    GDevPtr *devSections;
+    int *usedChips;
+    int numDevSections;
+    int numUsed;
+    Bool foundScreen = FALSE;
+    EntityInfoPtr pEnt;
+
+    /*
+     * The aim here is to find all cards that this driver can handle,
+     * and for the ones not already claimed by another driver, claim the
+     * slot, and allocate a ScrnInfoRec.
+     *
+     * This should be a minimal probe, and it should under no circumstances
+     * change the state of the hardware.  Because a device is found, don't
+     * assume that it will be used.  Don't do any initialisations other than
+     * the required ScrnInfoRec initialisations.  Don't allocate any new
+     * data structures.
+     */
+
+    /*
+     * Next we check, if there has been a chipset override in the config file.
+     * For this we must find out if there is an active device section which
+     * is relevant, i.e., which has no driver specified or has THIS driver
+     * specified.
+     */
+
+    if ((numDevSections = xf86MatchDevice(TCX_DRIVER_NAME,
+					  &devSections)) <= 0) {
+	/*
+	 * There's no matching device section in the config file, so quit
+	 * now.
+	 */
+	return FALSE;
+    }
+
+    /*
+     * We need to probe the hardware first.  We then need to see how this
+     * fits in with what is given in the config file, and allow the config
+     * file info to override any contradictions.
+     */
+
+    numUsed = xf86MatchSbusInstances(TCX_NAME, SBUS_DEVICE_TCX,
+		   devSections, numDevSections,
+		   drv, &usedChips);
+				    
+    xfree(devSections);
+    if (numUsed <= 0)
+	return FALSE;
+
+    if (flags & PROBE_DETECT)
+	foundScreen = TRUE;
+    else for (i = 0; i < numUsed; i++) {
+	pEnt = xf86GetEntityInfo(usedChips[i]);
+
+	/*
+	 * Check that nothing else has claimed the slots.
+	 */
+	if(pEnt->active) {
+	    ScrnInfoPtr pScrn;
+	    
+	    /* Allocate a ScrnInfoRec and claim the slot */
+	    pScrn = xf86AllocateScreen(drv, 0);
+
+	    /* Fill in what we can of the ScrnInfoRec */
+	    pScrn->driverVersion = VERSION;
+	    pScrn->driverName	 = TCX_DRIVER_NAME;
+	    pScrn->name		 = TCX_NAME;
+	    pScrn->Probe	 = TCXProbe;
+	    pScrn->PreInit	 = TCXPreInit;
+	    pScrn->ScreenInit	 = TCXScreenInit;
+  	    pScrn->SwitchMode	 = TCXSwitchMode;
+  	    pScrn->AdjustFrame	 = TCXAdjustFrame;
+	    pScrn->EnterVT	 = TCXEnterVT;
+	    pScrn->LeaveVT	 = TCXLeaveVT;
+	    pScrn->FreeScreen	 = TCXFreeScreen;
+	    pScrn->ValidMode	 = TCXValidMode;
+	    xf86AddEntityToScreen(pScrn, pEnt->index);
+	    foundScreen = TRUE;
+	}
+	xfree(pEnt);
+    }
+    xfree(usedChips);
+    return foundScreen;
+}
+
+/* Mandatory */
+static Bool
+TCXPreInit(ScrnInfoPtr pScrn, int flags)
+{
+    TcxPtr pTcx;
+    sbusDevicePtr psdp = NULL;
+    MessageType from;
+    int i;
+    int hwCursor, lowDepth;
+
+    if (flags & PROBE_DETECT) return FALSE;
+
+    /*
+     * Note: This function is only called once at server startup, and
+     * not at the start of each server generation.  This means that
+     * only things that are persistent across server generations can
+     * be initialised here.  xf86Screens[] is (pScrn is a pointer to one
+     * of these).  Privates allocated using xf86AllocateScrnInfoPrivateIndex()  
+     * are too, and should be used for data that must persist across
+     * server generations.
+     *
+     * Per-generation data should be allocated with
+     * AllocateScreenPrivateIndex() from the ScreenInit() function.
+     */
+
+    /* Allocate the TcxRec driverPrivate */
+    if (!TCXGetRec(pScrn)) {
+	return FALSE;
+    }
+    pTcx = GET_TCX_FROM_SCRN(pScrn);
+    
+    /* Set pScrn->monitor */
+    pScrn->monitor = pScrn->confScreen->monitor;
+
+    /* This driver doesn't expect more than one entity per screen */
+    if (pScrn->numEntities > 1)
+	return FALSE;
+    /* This is the general case */
+    for (i = 0; i < pScrn->numEntities; i++) {
+	EntityInfoPtr pEnt = xf86GetEntityInfo(pScrn->entityList[i]);
+
+	/* TCX is purely AFX, but we handle it like SBUS */
+	if (pEnt->location.type == BUS_SBUS) {
+	    psdp = xf86GetSbusInfoForEntity(pEnt->index);
+	    pTcx->psdp = psdp;
+	} else
+	    return FALSE;
+    }
+    if (psdp == NULL)
+	return FALSE;
+
+    /**********************
+    check card capabilities
+    **********************/
+    hwCursor = 0;
+    lowDepth = 1;
+    if (sparcPromInit() >= 0) {
+	hwCursor = sparcPromGetBool(&psdp->node, "hw-cursor");
+	lowDepth = sparcPromGetBool(&psdp->node, "tcx-8-bit");
+	sparcPromClose();
+    }
+
+    /*********************
+    deal with depth
+    *********************/
+    
+    if (!xf86SetDepthBpp(pScrn, 0, 0, 0,
+			 lowDepth ? NoDepth24Support : Support32bppFb)) {
+	return FALSE;
+    } else {
+	/* Check that the returned depth is one we support */
+	switch (pScrn->depth) {
+	case 8:
+	    /* OK */
+	    break;
+	case 32:
+	    /* unless lowDepth OK */
+	    if (lowDepth) {
+		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+			   "Given depth (32) not supported by hardware\n");
+		return FALSE;
+	    }
+	    break;
+	default:
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+		       "Given depth (%d) is not supported by this driver\n",
+		       pScrn->depth);
+	    return FALSE;
+	}
+    }
+
+    /* Collect all of the relevant option flags (fill in pScrn->options) */
+    xf86CollectOptions(pScrn, NULL);
+    /* Process the options */
+    if (!(pTcx->Options = xalloc(sizeof(TCXOptions))))
+	return FALSE;
+    memcpy(pTcx->Options, TCXOptions, sizeof(TCXOptions));
+    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pTcx->Options);
+
+    /*
+     * This must happen after pScrn->display has been set because
+     * xf86SetWeight references it.
+     */
+    if (pScrn->depth > 8) {
+	rgb weight = {10, 11, 11};
+	rgb mask = {0xff, 0xff00, 0xff0000};
+                                       
+	if (!xf86SetWeight(pScrn, weight, mask)) {
+	    return FALSE;
+	}
+    }
+                                                                           
+    if (!xf86SetDefaultVisual(pScrn, -1))
+	return FALSE;
+    else if (pScrn->depth > 8) {
+	/* We don't currently support DirectColor */
+	if (pScrn->defaultVisual != TrueColor) {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Given default visual"
+		       " (%s) is not supported\n",
+		       xf86GetVisualName(pScrn->defaultVisual));
+	    return FALSE;
+	}
+    }                                                                                                  
+
+    /*
+     * The new cmap code requires this to be initialised.
+     */
+
+    {
+	Gamma zeros = {0.0, 0.0, 0.0};
+
+	if (!xf86SetGamma(pScrn, zeros)) {
+	    return FALSE;
+	}
+    }
+
+    /* determine whether we use hardware or software cursor */
+    
+    from = X_PROBED;
+    pTcx->HWCursor = FALSE;
+    if (hwCursor) {
+	from = X_DEFAULT;
+	pTcx->HWCursor = TRUE;
+	if (xf86GetOptValBool(pTcx->Options, OPTION_HW_CURSOR, &pTcx->HWCursor))
+	    from = X_CONFIG;
+	if (xf86ReturnOptValBool(pTcx->Options, OPTION_SW_CURSOR, FALSE)) {
+	    from = X_CONFIG;
+	    pTcx->HWCursor = FALSE;
+	}
+    }
+    
+    xf86DrvMsg(pScrn->scrnIndex, from, "Using %s cursor\n",
+		pTcx->HWCursor ? "HW" : "SW");
+
+    if (xf86LoadSubModule(pScrn, "fb") == NULL) {
+	TCXFreeRec(pScrn);
+	return FALSE;
+    }
+
+    if (pTcx->HWCursor && xf86LoadSubModule(pScrn, "ramdac") == NULL) {
+	TCXFreeRec(pScrn);
+	return FALSE;
+    }
+
+    /*********************
+    set up clock and mode stuff
+    *********************/
+    
+    pScrn->progClock = TRUE;
+
+    if(pScrn->display->virtualX || pScrn->display->virtualY) {
+	xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+		   "TCX does not support a virtual desktop\n");
+	pScrn->display->virtualX = 0;
+	pScrn->display->virtualY = 0;
+    }
+
+    xf86SbusUseBuiltinMode(pScrn, pTcx->psdp);
+    pScrn->currentMode = pScrn->modes;
+    pScrn->displayWidth = pScrn->virtualX;
+
+    /* Set display resolution */
+    xf86SetDpi(pScrn, 0, 0);
+
+    return TRUE;
+}
+
+/* Mandatory */
+
+/* This gets called at the start of each server generation */
+
+static Bool
+TCXScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
+{
+    ScrnInfoPtr pScrn;
+    TcxPtr pTcx;
+    VisualPtr visual;
+    int ret;
+
+    /* 
+     * First get the ScrnInfoRec
+     */
+    pScrn = xf86Screens[pScreen->myNum];
+
+    pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    /* Map the TCX memory */
+    if (pScrn->depth == 8)
+	pTcx->fb =
+	    xf86MapSbusMem (pTcx->psdp, TCX_RAM8_VOFF,
+			    (pTcx->psdp->width * pTcx->psdp->height));
+    else {
+	pTcx->fb =
+	    xf86MapSbusMem (pTcx->psdp, TCX_RAM24_VOFF,
+			    (pTcx->psdp->width * pTcx->psdp->height * 4));
+	pTcx->cplane =
+	    xf86MapSbusMem (pTcx->psdp, TCX_CPLANE_VOFF,
+			    (pTcx->psdp->width * pTcx->psdp->height * 4));
+	if (! pTcx->cplane)
+	    return FALSE;
+    }
+    if (pTcx->HWCursor == TRUE) {
+	pTcx->thc = xf86MapSbusMem (pTcx->psdp, TCX_THC_VOFF, 8192);
+	if (! pTcx->thc)
+	    return FALSE;
+    }
+
+    if (! pTcx->fb)
+	return FALSE;
+
+    /* Darken the screen for aesthetic reasons and set the viewport */
+    TCXSaveScreen(pScreen, SCREEN_SAVER_ON);
+
+    /*
+     * The next step is to setup the screen's visuals, and initialise the
+     * framebuffer code.  In cases where the framebuffer's default
+     * choices for things like visual layouts and bits per RGB are OK,
+     * this may be as simple as calling the framebuffer's ScreenInit()
+     * function.  If not, the visuals will need to be setup before calling
+     * a fb ScreenInit() function and fixed up after.
+     */
+
+    /*
+     * Reset visual list.
+     */
+    miClearVisualTypes();
+
+    if (pScrn->depth == 8)
+	/* Set the bits per RGB for 8bpp mode */
+	pScrn->rgbBits = 8;
+
+    /* Setup the visuals we support. */
+
+    if (!miSetVisualTypes(pScrn->depth,
+			  pScrn->depth != 8 ? TrueColorMask :
+				miGetDefaultVisualMask(pScrn->depth),
+			  pScrn->rgbBits, pScrn->defaultVisual))
+	return FALSE;
+
+    miSetPixmapDepths ();
+
+    /*
+     * Call the framebuffer layer's ScreenInit function, and fill in other
+     * pScreen fields.
+     */
+
+    if (pScrn->bitsPerPixel != 8)
+	TCXInitCplane24(pScrn);
+    ret = fbScreenInit(pScreen, pTcx->fb, pScrn->virtualX,
+		       pScrn->virtualY, pScrn->xDpi, pScrn->yDpi,
+		       pScrn->virtualX, pScrn->bitsPerPixel);
+
+    if (!ret)
+	return FALSE;
+
+    xf86SetBlackWhitePixels(pScreen);
+
+    if (pScrn->bitsPerPixel > 8) {
+	/* Fixup RGB ordering */
+	visual = pScreen->visuals + pScreen->numVisuals;
+	while (--visual >= pScreen->visuals) {
+	    if ((visual->class | DynamicClass) == DirectColor) {
+		visual->offsetRed = pScrn->offset.red;
+		visual->offsetGreen = pScrn->offset.green;
+		visual->offsetBlue = pScrn->offset.blue;
+		visual->redMask = pScrn->mask.red;
+		visual->greenMask = pScrn->mask.green;
+		visual->blueMask = pScrn->mask.blue;
+	    }
+	}
+    }
+
+#ifdef RENDER
+    /* must be after RGB ordering fixed */
+    fbPictureInit (pScreen, 0, 0);
+#endif
+
+    miInitializeBackingStore(pScreen);
+    xf86SetBackingStore(pScreen);
+    xf86SetSilkenMouse(pScreen);
+
+    /* Initialise cursor functions */
+    miDCInitialize (pScreen, xf86GetPointerScreenFuncs());
+
+    /* Initialize HW cursor layer. 
+       Must follow software cursor initialization*/
+    if (pTcx->HWCursor) { 
+	extern Bool TCXHWCursorInit(ScreenPtr pScreen);
+
+	if(!TCXHWCursorInit(pScreen)) {
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, 
+		       "Hardware cursor initialization failed\n");
+	    return(FALSE);
+	}
+	xf86SbusHideOsHwCursor(pTcx->psdp);
+    }
+
+    /* Initialise default colourmap */
+    if (!miCreateDefColormap(pScreen))
+	return FALSE;
+
+    if(pScrn->depth == 8 && !xf86SbusHandleColormaps(pScreen, pTcx->psdp))
+	return FALSE;
+
+    pTcx->CloseScreen = pScreen->CloseScreen;
+    pScreen->CloseScreen = TCXCloseScreen;
+    pScreen->SaveScreen = TCXSaveScreen;
+
+    /* Report any unused options (only for the first generation) */
+    if (serverGeneration == 1) {
+	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
+    }
+
+    /* unblank the screen */
+    TCXSaveScreen(pScreen, SCREEN_SAVER_OFF);
+
+    /* Done */
+    return TRUE;
+}
+
+
+/* Usually mandatory */
+static Bool
+TCXSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
+{
+    return TRUE;
+}
+
+
+/*
+ * This function is used to initialize the Start Address - the first
+ * displayed location in the video memory.
+ */
+/* Usually mandatory */
+static void 
+TCXAdjustFrame(int scrnIndex, int x, int y, int flags)
+{
+    /* we don't support virtual desktops */
+    return;
+}
+
+/*
+ * This is called when VT switching back to the X server.  Its job is
+ * to reinitialise the video mode.
+ */
+
+/* Mandatory */
+static Bool
+TCXEnterVT(int scrnIndex, int flags)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    if (pTcx->HWCursor) {
+	xf86SbusHideOsHwCursor (pTcx->psdp);
+	pTcx->CursorFg = 0;
+	pTcx->CursorBg = 0;
+    }
+    if (pTcx->cplane) {
+	TCXInitCplane24 (pScrn);
+    }
+    return TRUE;
+}
+
+
+/*
+ * This is called when VT switching away from the X server.
+ */
+
+/* Mandatory */
+static void
+TCXLeaveVT(int scrnIndex, int flags)
+{
+    return;
+}
+
+
+/*
+ * This is called at the end of each server generation.  It restores the
+ * original (text) mode.  It should really also unmap the video memory too.
+ */
+
+/* Mandatory */
+static Bool
+TCXCloseScreen(int scrnIndex, ScreenPtr pScreen)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+
+    pScrn->vtSema = FALSE;
+    if (pScrn->depth == 8)
+	xf86UnmapSbusMem(pTcx->psdp, pTcx->fb,
+			 (pTcx->psdp->width * pTcx->psdp->height));
+    else {
+	xf86UnmapSbusMem(pTcx->psdp, pTcx->fb,
+			 (pTcx->psdp->width * pTcx->psdp->height * 4));
+	xf86UnmapSbusMem(pTcx->psdp, pTcx->cplane,
+			 (pTcx->psdp->width * pTcx->psdp->height * 4));
+    }
+    if (pTcx->thc)
+	xf86UnmapSbusMem(pTcx->psdp, pTcx->fb, 8192);
+    
+    if (pTcx->HWCursor)
+	xf86SbusHideOsHwCursor (pTcx->psdp);
+
+    pScreen->CloseScreen = pTcx->CloseScreen;
+    return (*pScreen->CloseScreen)(scrnIndex, pScreen);
+    return FALSE;
+}
+
+
+/* Free up any per-generation data structures */
+
+/* Optional */
+static void
+TCXFreeScreen(int scrnIndex, int flags)
+{
+    TCXFreeRec(xf86Screens[scrnIndex]);
+}
+
+
+/* Checks if a mode is suitable for the selected chipset. */
+
+/* Optional */
+static int
+TCXValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
+{
+    if (mode->Flags & V_INTERLACE)
+	return(MODE_BAD);
+
+    return(MODE_OK);
+}
+
+/* Do screen blanking */
+
+/* Mandatory */
+static Bool
+TCXSaveScreen(ScreenPtr pScreen, int mode)
+    /* this function should blank the screen when unblank is FALSE and
+       unblank it when unblank is TRUE -- it doesn't actually seem to be
+       used for much though */
+{
+    return TRUE;
+}
+
+/*
+ * This is the implementation of the Sync() function.
+ */
+void
+TCXSync(ScrnInfoPtr pScrn)
+{
+    return;
+}
+
+/*
+ * This initializes CPLANE for 24 bit mode.
+ */
+static void
+TCXInitCplane24(ScrnInfoPtr pScrn)
+{
+    TcxPtr pTcx = GET_TCX_FROM_SCRN(pScrn);
+    int size;
+    unsigned int *p, *q;
+
+    if (!pTcx->cplane)
+	return;
+
+    size = pScrn->virtualX * pScrn->virtualY;
+    memset (pTcx->fb, 0, size * 4);
+    p = pTcx->cplane;
+    for (q = pTcx->cplane + size; p != q; p++)
+	*p = (*p & 0xffffff) | TCX_CPLANE_MODE;
+}
diff --git a/src/tcx_regs.h b/src/tcx_regs.h
new file mode 100644
index 0000000..61e4b0a
--- /dev/null
+++ b/src/tcx_regs.h
@@ -0,0 +1,56 @@
+/*
+ * TCX framebuffer - hardware registers.
+ *
+ * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
+ *
+ * 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:
+ *
+ * The above copyright notice and this permission notice 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * JAKUB JELINEK 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.
+ */
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/suntcx/tcx_regs.h,v 1.1 2000/06/30 17:15:17 dawes Exp $ */
+
+#ifndef TCX_REGS_H
+#define TCX_REGS_H
+
+/* THC definitions */
+#define TCX_THC_MISC_REV_SHIFT       16
+#define TCX_THC_MISC_REV_MASK        15
+#define TCX_THC_MISC_RESET           (1 << 12)
+#define TCX_THC_MISC_VIDEO           (1 << 10)
+#define TCX_THC_MISC_SYNC            (1 << 9)
+#define TCX_THC_MISC_VSYNC           (1 << 8)
+#define TCX_THC_MISC_SYNC_ENAB       (1 << 7)
+#define TCX_THC_MISC_CURS_RES        (1 << 6)
+#define TCX_THC_MISC_INT_ENAB        (1 << 5)
+#define TCX_THC_MISC_INT             (1 << 4)
+#define TCX_THC_MISC_INIT            0x9f
+
+typedef struct tcx_thc {
+        unsigned int		thc_pad0[512];
+	volatile unsigned int	thc_hs;		/* hsync timing */
+	volatile unsigned int	thc_hsdvs;
+	volatile unsigned int	thc_hd;
+	volatile unsigned int	thc_vs;		/* vsync timing */
+	volatile unsigned int	thc_vd;
+	volatile unsigned int	thc_refresh;
+	volatile unsigned int	thc_misc;
+	unsigned int		thc_pad1[56];
+	volatile unsigned int	thc_cursxy;	/* cursor x,y position (16 bits each) */
+	volatile unsigned int	thc_cursmask[32];/* cursor mask bits */
+	volatile unsigned int	thc_cursbits[32];/* what to show where mask enabled */
+} TcxThc, *TcxThcPtr;
+
+#endif /* TCX_REGS_H */