Initial revisionXORG-STABLE

2 files changed, 636 insertions, 0 deletions

diff --git a/src/bw2.h b/src/bw2.h
new file mode 100644
index 0000000..a1284c8
--- /dev/null
+++ b/src/bw2.h
@@ -0,0 +1,50 @@
+/*
+ * BW2 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/sunbw2/bw2.h,v 1.1 2000/06/30 17:15:13 dawes Exp $ */
+
+#ifndef BW2_H
+#define BW2_H
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "xf86RamDac.h"
+#include "Xmd.h"
+#include "gcstruct.h"
+#include "xf86sbusBus.h"
+
+/* Various offsets in virtual (ie. mmap()) spaces Linux and Solaris support. */
+#define BW2_RAM_VOFF	0
+
+typedef struct {
+	unsigned char	*fb;
+	int		width;
+	int		height;
+
+	sbusDevicePtr	psdp;
+	CloseScreenProcPtr CloseScreen;
+} Bw2Rec, *Bw2Ptr;
+
+#define GET_BW2_FROM_SCRN(p)    ((Bw2Ptr)((p)->driverPrivate))
+
+#endif /* BW2_H */
diff --git a/src/bw2_driver.c b/src/bw2_driver.c
new file mode 100644
index 0000000..00b0072
--- /dev/null
+++ b/src/bw2_driver.c
@@ -0,0 +1,586 @@
+/*
+ * BW2 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/sunbw2/bw2_driver.c,v 1.3 2001/05/04 19:05:45 dawes 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 "xf1bpp.h"
+#include "xf86cmap.h"
+#include "bw2.h"
+
+static const OptionInfoRec * BW2AvailableOptions(int chipid, int busid);
+static void	BW2Identify(int flags);
+static Bool	BW2Probe(DriverPtr drv, int flags);
+static Bool	BW2PreInit(ScrnInfoPtr pScrn, int flags);
+static Bool	BW2ScreenInit(int Index, ScreenPtr pScreen, int argc,
+			      char **argv);
+static Bool	BW2EnterVT(int scrnIndex, int flags);
+static void	BW2LeaveVT(int scrnIndex, int flags);
+static Bool	BW2CloseScreen(int scrnIndex, ScreenPtr pScreen);
+static Bool	BW2SaveScreen(ScreenPtr pScreen, int mode);
+
+/* Required if the driver supports mode switching */
+static Bool	BW2SwitchMode(int scrnIndex, DisplayModePtr mode, int flags);
+/* Required if the driver supports moving the viewport */
+static void	BW2AdjustFrame(int scrnIndex, int x, int y, int flags);
+
+/* Optional functions */
+static void	BW2FreeScreen(int scrnIndex, int flags);
+static int	BW2ValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose,
+			     int flags);
+
+void BW2Sync(ScrnInfoPtr pScrn);
+
+#define VERSION 4000
+#define BW2_NAME "SUNBW2"
+#define BW2_DRIVER_NAME "sunbw2"
+#define BW2_MAJOR_VERSION 1
+#define BW2_MINOR_VERSION 0
+#define BW2_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 SUNBW2 = {
+    VERSION,
+    BW2_DRIVER_NAME,
+    BW2Identify,
+    BW2Probe,
+    BW2AvailableOptions,
+    NULL,
+    0
+};
+
+static const OptionInfoRec BW2Options[] = {
+    { -1,			NULL,		OPTV_NONE,	{0}, FALSE }
+};
+
+#ifdef XFree86LOADER
+
+static MODULESETUPPROTO(bw2Setup);
+
+static XF86ModuleVersionInfo sunbw2VersRec =
+{
+	"sunbw2",
+	MODULEVENDORSTRING,
+	MODINFOSTRING1,
+	MODINFOSTRING2,
+	XF86_VERSION_CURRENT,
+	BW2_MAJOR_VERSION, BW2_MINOR_VERSION, BW2_PATCHLEVEL,
+	ABI_CLASS_VIDEODRV,
+	ABI_VIDEODRV_VERSION,
+	MOD_CLASS_VIDEODRV,
+	{0,0,0,0}
+};
+
+XF86ModuleData sunbw2ModuleData = { &sunbw2VersRec, bw2Setup, NULL };
+
+pointer
+bw2Setup(pointer module, pointer opts, int *errmaj, int *errmin)
+{
+    static Bool setupDone = FALSE;
+
+    if (!setupDone) {
+	setupDone = TRUE;
+	xf86AddDriver(&SUNBW2, 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
+BW2GetRec(ScrnInfoPtr pScrn)
+{
+    /*
+     * Allocate an Bw2Rec, 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(Bw2Rec), 1);
+    return TRUE;
+}
+
+static void
+BW2FreeRec(ScrnInfoPtr pScrn)
+{
+    Bw2Ptr pBw2;
+
+    if (pScrn->driverPrivate == NULL)
+	return;
+
+    pBw2 = GET_BW2_FROM_SCRN(pScrn);
+
+    xfree(pScrn->driverPrivate);
+    pScrn->driverPrivate = NULL;
+
+    return;
+}
+
+static const OptionInfoRec *
+BW2AvailableOptions(int chipid, int busid)
+{
+    return BW2Options;
+}
+
+/* Mandatory */
+static void
+BW2Identify(int flags)
+{
+    xf86Msg(X_INFO, "%s: driver for BWtwo\n", BW2_NAME);
+}
+
+
+/* Mandatory */
+static Bool
+BW2Probe(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(BW2_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(BW2_NAME, SBUS_DEVICE_BW2,
+		   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	 = BW2_DRIVER_NAME;
+	    pScrn->name		 = BW2_NAME;
+	    pScrn->Probe	 = BW2Probe;
+	    pScrn->PreInit	 = BW2PreInit;
+	    pScrn->ScreenInit	 = BW2ScreenInit;
+  	    pScrn->SwitchMode	 = BW2SwitchMode;
+  	    pScrn->AdjustFrame	 = BW2AdjustFrame;
+	    pScrn->EnterVT	 = BW2EnterVT;
+	    pScrn->LeaveVT	 = BW2LeaveVT;
+	    pScrn->FreeScreen	 = BW2FreeScreen;
+	    pScrn->ValidMode	 = BW2ValidMode;
+	    xf86AddEntityToScreen(pScrn, pEnt->index);
+	    foundScreen = TRUE;
+	}
+	xfree(pEnt);
+    }
+    xfree(usedChips);
+    return foundScreen;
+}
+
+/* Mandatory */
+static Bool
+BW2PreInit(ScrnInfoPtr pScrn, int flags)
+{
+    Bw2Ptr pBw2;
+    sbusDevicePtr psdp;
+    MessageType from;
+    int i;
+
+    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 Bw2Rec driverPrivate */
+    if (!BW2GetRec(pScrn)) {
+	return FALSE;
+    }
+    pBw2 = GET_BW2_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]);
+
+	/* BW2 is purely SBUS */
+	if (pEnt->location.type == BUS_SBUS) {
+	    psdp = xf86GetSbusInfoForEntity(pEnt->index);
+	    pBw2->psdp = psdp;
+	} else
+	    return FALSE;
+    }
+
+    /*********************
+    deal with depth
+    *********************/
+    
+    if (!xf86SetDepthBpp(pScrn, 0, 0, 0, NoDepth24Support)) {
+	return FALSE;
+    } else {
+	/* Check that the returned depth is one we support */
+	switch (pScrn->depth) {
+	case 1:
+	    /* OK */
+	    break;
+	default:
+	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
+		       "Given depth (%d) is not supported by this driver\n",
+		       pScrn->depth);
+	    return FALSE;
+	}
+    }
+
+    if (!xf86SetDefaultVisual(pScrn, -1))
+	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;
+	}
+    }
+
+    /* Set the bits per RGB for 8bpp mode */
+    from = X_DEFAULT;
+
+    if (xf86LoadSubModule(pScrn, "xf1bpp") == NULL) {
+	BW2FreeRec(pScrn);
+	return FALSE;
+    }
+
+    /*********************
+    set up clock and mode stuff
+    *********************/
+    
+    pScrn->progClock = TRUE;
+
+    if(pScrn->display->virtualX || pScrn->display->virtualY) {
+	xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
+		   "BW2 does not support a virtual desktop\n");
+	pScrn->display->virtualX = 0;
+	pScrn->display->virtualY = 0;
+    }
+
+    xf86SbusUseBuiltinMode(pScrn, pBw2->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
+BW2ScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
+{
+    ScrnInfoPtr pScrn;
+    Bw2Ptr pBw2;
+    int ret;
+
+    /* 
+     * First get the ScrnInfoRec
+     */
+    pScrn = xf86Screens[pScreen->myNum];
+
+    pBw2 = GET_BW2_FROM_SCRN(pScrn);
+
+    /* Map the BW2 memory */
+    pBw2->fb =
+	xf86MapSbusMem (pBw2->psdp, BW2_RAM_VOFF,
+			(pBw2->psdp->width * pBw2->psdp->height / 8));
+
+    if (! pBw2->fb)
+	return FALSE;
+
+    /* Darken the screen for aesthetic reasons and set the viewport */
+    BW2SaveScreen(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();
+
+    /* Set the bits per RGB for 8bpp mode */
+    pScrn->rgbBits = 8;
+
+    /* Setup the visuals we support. */
+
+    if (!miSetVisualTypes(pScrn->depth, miGetDefaultVisualMask(pScrn->depth),
+			  pScrn->rgbBits, pScrn->defaultVisual))
+	return FALSE;
+
+    /*
+     * Call the framebuffer layer's ScreenInit function, and fill in other
+     * pScreen fields.
+     */
+
+    ret = xf1bppScreenInit(pScreen, pBw2->fb, pScrn->virtualX,
+			   pScrn->virtualY, pScrn->xDpi, pScrn->yDpi,
+			   pScrn->virtualX);
+    if (!ret)
+	return FALSE;
+
+    miInitializeBackingStore(pScreen);
+    xf86SetBackingStore(pScreen);
+    xf86SetSilkenMouse(pScreen);
+
+    xf86SetBlackWhitePixels(pScreen);
+
+    /* Initialise cursor functions */
+    miDCInitialize (pScreen, xf86GetPointerScreenFuncs());
+
+    /* Initialise default colourmap */
+    if (!miCreateDefColormap(pScreen))
+	return FALSE;
+
+    pBw2->CloseScreen = pScreen->CloseScreen;
+    pScreen->CloseScreen = BW2CloseScreen;
+    pScreen->SaveScreen = BW2SaveScreen;
+
+    /* Report any unused options (only for the first generation) */
+    if (serverGeneration == 1) {
+	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
+    }
+
+    /* unblank the screen */
+    BW2SaveScreen(pScreen, SCREEN_SAVER_OFF);
+
+    /* Done */
+    return TRUE;
+}
+
+
+/* Usually mandatory */
+static Bool
+BW2SwitchMode(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 
+BW2AdjustFrame(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
+BW2EnterVT(int scrnIndex, int flags)
+{
+    return TRUE;
+}
+
+
+/*
+ * This is called when VT switching away from the X server.
+ */
+
+/* Mandatory */
+static void
+BW2LeaveVT(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
+BW2CloseScreen(int scrnIndex, ScreenPtr pScreen)
+{
+    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
+    Bw2Ptr pBw2 = GET_BW2_FROM_SCRN(pScrn);
+
+    pScrn->vtSema = FALSE;
+    xf86UnmapSbusMem(pBw2->psdp, pBw2->fb,
+		     (pBw2->psdp->width * pBw2->psdp->height / 8));
+    
+    pScreen->CloseScreen = pBw2->CloseScreen;
+    return (*pScreen->CloseScreen)(scrnIndex, pScreen);
+    return FALSE;
+}
+
+
+/* Free up any per-generation data structures */
+
+/* Optional */
+static void
+BW2FreeScreen(int scrnIndex, int flags)
+{
+    BW2FreeRec(xf86Screens[scrnIndex]);
+}
+
+
+/* Checks if a mode is suitable for the selected chipset. */
+
+/* Optional */
+static int
+BW2ValidMode(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
+BW2SaveScreen(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
+BW2Sync(ScrnInfoPtr pScrn)
+{
+    return;
+}