1/*
2 * Fujitsu AG-10e framebuffer driver.
3 *
4 * Copyright (C) 2007 Michael Lorenz
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * JAKUB JELINEK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/suncg6/cg6_driver.c,v 1.12 2005/02/18 02:55:09 dawes Exp $ */
24
25/* need this for PRIxPTR macro */
26
27#ifdef HAVE_CONFIG_H
28#include "config.h"
29#endif
30
31#include <fcntl.h>
32#include <sys/time.h>
33#include <sys/types.h>
34#include <sys/ioctl.h>
35#include <dev/sun/fbio.h>
36#include <dev/wscons/wsconsio.h>
37
38#include <machine/int_fmtio.h>
39#include "xf86.h"
40#include "xf86_OSproc.h"
41#include "mipointer.h"
42#include "micmap.h"
43
44#include "fb.h"
45#include "xf86cmap.h"
46#include "ag10e.h"
47#include "xf86sbusBus.h"
48
49#if GET_ABI_MAJOR(ABI_VIDEODRV_VERSION) > 6
50#define xf86LoaderReqSymLists(...) do {} while (0)
51#define LoaderRefSymLists(...) do {} while (0)
52#endif
53
54static const OptionInfoRec * AG10EAvailableOptions(int chipid, int busid);
55static void	AG10EIdentify(int flags);
56static Bool	AG10EProbe(DriverPtr drv, int flags);
57static Bool	AG10EPreInit(ScrnInfoPtr pScrn, int flags);
58static Bool	AG10EScreenInit(int Index, ScreenPtr pScreen, int argc,
59			      char **argv);
60static Bool	AG10EEnterVT(int scrnIndex, int flags);
61static void	AG10ELeaveVT(int scrnIndex, int flags);
62static Bool	AG10ECloseScreen(int scrnIndex, ScreenPtr pScreen);
63static Bool	AG10ESaveScreen(ScreenPtr pScreen, int mode);
64
65/* Required if the driver supports mode switching */
66static Bool	AG10ESwitchMode(int scrnIndex, DisplayModePtr mode, int flags);
67/* Required if the driver supports moving the viewport */
68static void	AG10EAdjustFrame(int scrnIndex, int x, int y, int flags);
69
70/* Optional functions */
71static void	AG10EFreeScreen(int scrnIndex, int flags);
72static ModeStatus AG10EValidMode(int scrnIndex, DisplayModePtr mode,
73			       Bool verbose, int flags);
74
75#define VERSION 4000
76#define AG10E_NAME "AG10E"
77#define AG10E_DRIVER_NAME "ag10e"
78#define AG10E_MAJOR_VERSION 1
79#define AG10E_MINOR_VERSION 0
80#define AG10E_PATCHLEVEL 0
81
82/*
83 * This contains the functions needed by the server after loading the driver
84 * module.  It must be supplied, and gets passed back by the SetupProc
85 * function in the dynamic case.  In the static case, a reference to this
86 * is compiled in, and this requires that the name of this DriverRec be
87 * an upper-case version of the driver name.
88 */
89
90DriverRec AG10E = {
91    VERSION,
92    AG10E_DRIVER_NAME,
93    AG10EIdentify,
94    AG10EProbe,
95    AG10EAvailableOptions,
96    NULL,
97    0
98};
99
100typedef enum {
101    OPTION_SW_CURSOR,
102    OPTION_HW_CURSOR,
103    OPTION_NOACCEL
104} AG10EOpts;
105
106static const OptionInfoRec AG10EOptions[] = {
107    { OPTION_SW_CURSOR,		"SWcursor",	OPTV_BOOLEAN,	{0}, FALSE },
108    { OPTION_HW_CURSOR,		"HWcursor",	OPTV_BOOLEAN,	{0}, FALSE },
109    { OPTION_NOACCEL,		"NoAccel",	OPTV_BOOLEAN,	{0}, FALSE },
110    { -1,			NULL,		OPTV_NONE,	{0}, FALSE }
111};
112
113static const char *xaaSymbols[] =
114{
115    "XAACreateInfoRec",
116    "XAADestroyInfoRec",
117    "XAAInit",
118    NULL
119};
120
121#ifdef XFree86LOADER
122
123static MODULESETUPPROTO(AG10ESetup);
124
125static XF86ModuleVersionInfo AG10EVersRec =
126{
127	"ag10e",
128	MODULEVENDORSTRING,
129	MODINFOSTRING1,
130	MODINFOSTRING2,
131	XORG_VERSION_CURRENT,
132	AG10E_MAJOR_VERSION, AG10E_MINOR_VERSION, AG10E_PATCHLEVEL,
133	ABI_CLASS_VIDEODRV,
134	ABI_VIDEODRV_VERSION,
135	MOD_CLASS_VIDEODRV,
136	{0,0,0,0}
137};
138
139_X_EXPORT XF86ModuleData ag10eModuleData = { &AG10EVersRec, AG10ESetup, NULL };
140
141static pointer
142AG10ESetup(pointer module, pointer opts, int *errmaj, int *errmin)
143{
144    static Bool setupDone = FALSE;
145
146    if (!setupDone) {
147	setupDone = TRUE;
148	xf86AddDriver(&AG10E, module, 0);
149
150	/*
151	 * Modules that this driver always requires can be loaded here
152	 * by calling LoadSubModule().
153	 */
154	LoaderRefSymLists(xaaSymbols, NULL);
155
156	/*
157	 * The return value must be non-NULL on success even though there
158	 * is no TearDownProc.
159	 */
160	return (pointer)TRUE;
161    } else {
162	if (errmaj) *errmaj = LDR_ONCEONLY;
163	return NULL;
164    }
165}
166
167#endif /* XFree86LOADER */
168
169static Bool
170AG10EGetRec(ScrnInfoPtr pScrn)
171{
172    /*
173     * Allocate an AG10ERec, and hook it into pScrn->driverPrivate.
174     * pScrn->driverPrivate is initialised to NULL, so we can check if
175     * the allocation has already been done.
176     */
177    if (pScrn->driverPrivate != NULL)
178	return TRUE;
179
180    pScrn->driverPrivate = xnfcalloc(sizeof(AG10ERec), 1);
181    return TRUE;
182}
183
184static void
185AG10EFreeRec(ScrnInfoPtr pScrn)
186{
187    AG10EPtr pAG10E;
188
189    if (pScrn->driverPrivate == NULL)
190	return;
191
192    pAG10E = GET_AG10E_FROM_SCRN(pScrn);
193
194    xfree(pScrn->driverPrivate);
195    pScrn->driverPrivate = NULL;
196
197    return;
198}
199
200static const OptionInfoRec *
201AG10EAvailableOptions(int chipid, int busid)
202{
203    return AG10EOptions;
204}
205
206/* Mandatory */
207static void
208AG10EIdentify(int flags)
209{
210    xf86Msg(X_INFO, "%s: driver for Fujitsu AG-10e\n", AG10E_NAME);
211}
212
213
214/* Mandatory */
215static Bool
216AG10EProbe(DriverPtr drv, int flags)
217{
218    int i;
219    GDevPtr *devSections;
220    int *usedChips;
221    int numDevSections;
222    int numUsed;
223    Bool foundScreen = FALSE;
224    EntityInfoPtr pEnt;
225
226    /*
227     * The aim here is to find all cards that this driver can handle,
228     * and for the ones not already claimed by another driver, claim the
229     * slot, and allocate a ScrnInfoRec.
230     *
231     * This should be a minimal probe, and it should under no circumstances
232     * change the state of the hardware.  Because a device is found, don't
233     * assume that it will be used.  Don't do any initialisations other than
234     * the required ScrnInfoRec initialisations.  Don't allocate any new
235     * data structures.
236     */
237
238    /*
239     * Next we check, if there has been a chipset override in the config file.
240     * For this we must find out if there is an active device section which
241     * is relevant, i.e., which has no driver specified or has THIS driver
242     * specified.
243     */
244
245    if ((numDevSections = xf86MatchDevice(AG10E_DRIVER_NAME,
246					  &devSections)) <= 0) {
247	/*
248	 * There's no matching device section in the config file, so quit
249	 * now.
250	 */
251	return FALSE;
252    }
253
254    /*
255     * We need to probe the hardware first.  We then need to see how this
256     * fits in with what is given in the config file, and allow the config
257     * file info to override any contradictions.
258     */
259
260    numUsed = xf86MatchSbusInstances(AG10E_NAME, SBUS_DEVICE_AG10E,
261		   devSections, numDevSections,
262		   drv, &usedChips);
263
264    xfree(devSections);
265    if (numUsed <= 0)
266	return FALSE;
267
268    if (flags & PROBE_DETECT)
269	foundScreen = TRUE;
270    else for (i = 0; i < numUsed; i++) {
271	pEnt = xf86GetEntityInfo(usedChips[i]);
272
273	/*
274	 * Check that nothing else has claimed the slots.
275	 */
276	if(pEnt->active) {
277	    ScrnInfoPtr pScrn;
278
279	    /* Allocate a ScrnInfoRec and claim the slot */
280	    pScrn = xf86AllocateScreen(drv, 0);
281
282	    /* Fill in what we can of the ScrnInfoRec */
283	    pScrn->driverVersion = VERSION;
284	    pScrn->driverName	 = AG10E_DRIVER_NAME;
285	    pScrn->name		 = AG10E_NAME;
286	    pScrn->Probe	 = AG10EProbe;
287	    pScrn->PreInit	 = AG10EPreInit;
288	    pScrn->ScreenInit	 = AG10EScreenInit;
289	    pScrn->SwitchMode	 = AG10ESwitchMode;
290	    pScrn->AdjustFrame	 = AG10EAdjustFrame;
291	    pScrn->EnterVT	 = AG10EEnterVT;
292	    pScrn->LeaveVT	 = AG10ELeaveVT;
293	    pScrn->FreeScreen	 = AG10EFreeScreen;
294	    pScrn->ValidMode	 = AG10EValidMode;
295	    xf86AddEntityToScreen(pScrn, pEnt->index);
296	    foundScreen = TRUE;
297	}
298	xfree(pEnt);
299    }
300    xfree(usedChips);
301    return foundScreen;
302}
303
304/* Mandatory */
305static Bool
306AG10EPreInit(ScrnInfoPtr pScrn, int flags)
307{
308    AG10EPtr pAG10E;
309    sbusDevicePtr psdp;
310    rgb defaultWeight = {0, 0, 0};
311    MessageType from;
312    int i;
313
314    if (flags & PROBE_DETECT) return FALSE;
315
316    /*
317     * Note: This function is only called once at server startup, and
318     * not at the start of each server generation.  This means that
319     * only things that are persistent across server generations can
320     * be initialised here.  xf86Screens[] is (pScrn is a pointer to one
321     * of these).  Privates allocated using xf86AllocateScrnInfoPrivateIndex()
322     * are too, and should be used for data that must persist across
323     * server generations.
324     *
325     * Per-generation data should be allocated with
326     * AllocateScreenPrivateIndex() from the ScreenInit() function.
327     */
328
329    /* Allocate the AG10ERec driverPrivate */
330    if (!AG10EGetRec(pScrn)) {
331	return FALSE;
332    }
333    pAG10E = GET_AG10E_FROM_SCRN(pScrn);
334
335    /* Set pScrn->monitor */
336    pScrn->monitor = pScrn->confScreen->monitor;
337
338    /* This driver doesn't expect more than one entity per screen */
339    if (pScrn->numEntities > 1)
340	return FALSE;
341    /* This is the general case */
342    for (i = 0; i < pScrn->numEntities; i++) {
343	EntityInfoPtr pEnt = xf86GetEntityInfo(pScrn->entityList[i]);
344
345	/* AG10E is purely SBUS */
346	if (pEnt->location.type == BUS_SBUS) {
347	    psdp = xf86GetSbusInfoForEntity(pEnt->index);
348	    pAG10E->psdp = psdp;
349	} else
350	    return FALSE;
351    }
352
353    /*********************
354    deal with depth
355    *********************/
356
357    if (!xf86SetDepthBpp(pScrn, 0, 0, 0, Support32bppFb)) {
358	return FALSE;
359    } else {
360	/* Check that the returned depth is one we support */
361	switch (pScrn->depth) {
362	case 24:
363	    /* OK */
364	    break;
365	default:
366	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
367		       "Given depth (%d) is not supported by this driver\n",
368		       pScrn->depth);
369	    return FALSE;
370	}
371    }
372
373    /* Collect all of the relevant option flags (fill in pScrn->options) */
374    xf86CollectOptions(pScrn, NULL);
375    /* Process the options */
376    if (!(pAG10E->Options = xalloc(sizeof(AG10EOptions))))
377	return FALSE;
378    memcpy(pAG10E->Options, AG10EOptions, sizeof(AG10EOptions));
379    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pAG10E->Options);
380
381    /*
382     * The new cmap code requires this to be initialised.
383     * this card supports HW gamma correction with 10 bit resolution - maybe
384     * we should figure out how to use it
385     */
386
387    {
388	Gamma zeros = {0.0, 0.0, 0.0};
389
390	if (!xf86SetGamma(pScrn, zeros)) {
391	    return FALSE;
392	}
393    }
394
395    from = X_DEFAULT;
396    if (!xf86SetWeight(pScrn, defaultWeight, defaultWeight))
397      return FALSE;
398
399    if (!xf86SetDefaultVisual(pScrn, -1))
400	return FALSE;
401
402    /* determine whether we use hardware or software cursor */
403
404    pAG10E->HWCursor = TRUE;
405    if (xf86GetOptValBool(pAG10E->Options, OPTION_HW_CURSOR, &pAG10E->HWCursor))
406	from = X_CONFIG;
407    if (xf86ReturnOptValBool(pAG10E->Options, OPTION_SW_CURSOR, FALSE)) {
408	from = X_CONFIG;
409	pAG10E->HWCursor = FALSE;
410    }
411
412    xf86DrvMsg(pScrn->scrnIndex, from, "Using %s cursor\n",
413		pAG10E->HWCursor ? "HW" : "SW");
414
415    if (xf86ReturnOptValBool(pAG10E->Options, OPTION_NOACCEL, FALSE)) {
416	pAG10E->NoAccel = TRUE;
417	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Acceleration disabled\n");
418    }
419
420    if (xf86LoadSubModule(pScrn, "fb") == NULL) {
421	AG10EFreeRec(pScrn);
422	return FALSE;
423    }
424
425    if (pAG10E->HWCursor && xf86LoadSubModule(pScrn, "ramdac") == NULL) {
426	AG10EFreeRec(pScrn);
427	return FALSE;
428    }
429
430    if (pAG10E->HWCursor && xf86LoadSubModule(pScrn, "xaa") == NULL) {
431	AG10EFreeRec(pScrn);
432	return FALSE;
433    }
434    xf86LoaderReqSymLists(xaaSymbols, NULL);
435
436    /*********************
437    set up clock and mode stuff
438    *********************/
439
440    pScrn->progClock = TRUE;
441
442    if(pScrn->display->virtualX || pScrn->display->virtualY) {
443	xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
444		   "AG10E does not support a virtual desktop\n");
445	pScrn->display->virtualX = 0;
446	pScrn->display->virtualY = 0;
447    }
448
449    xf86SbusUseBuiltinMode(pScrn, pAG10E->psdp);
450    pScrn->currentMode = pScrn->modes;
451    pScrn->displayWidth = pScrn->virtualX;
452
453    /* Set display resolution */
454    xf86SetDpi(pScrn, 0, 0);
455
456    return TRUE;
457}
458
459/* Mandatory */
460
461/* This gets called at the start of each server generation */
462
463static Bool
464AG10EScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
465{
466    ScrnInfoPtr pScrn;
467    AG10EPtr pAG10E;
468    struct fbtype fb;
469    sbusDevicePtr psdp;
470    VisualPtr visual;
471    int ret;
472
473    pScrn = xf86Screens[pScreen->myNum];
474    pAG10E = GET_AG10E_FROM_SCRN(pScrn);
475    psdp = pAG10E->psdp;
476
477    /*
478     * for some idiotic reason we need to check if the file descriptor is
479     * really open here
480     */
481    if (psdp->fd == -1) {
482	psdp->fd = open(psdp->device, O_RDWR);
483	if (psdp->fd == -1)
484	    return FALSE;
485    }
486
487    /* figure out how much VRAM we can map */
488    if ((ret = ioctl(pAG10E->psdp->fd, FBIOGTYPE, &fb)) != 0) {
489	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
490	    "ioctl(FBIOGTYPE) failed with %d\n", ret);
491	return FALSE;
492    }
493    pAG10E->vidmem = fb.fb_size;
494
495    /* Map AG10E memory areas */
496
497    pAG10E->regs = xf86MapSbusMem(psdp, pAG10E->vidmem, 0x10000);
498    pAG10E->fb = xf86MapSbusMem(psdp, 0, pAG10E->vidmem);
499
500    if (pAG10E->fb != NULL) {
501        xf86DrvMsg(pScrn->scrnIndex, X_INFO, "mapped %d KB video RAM\n",
502	    pAG10E->vidmem >> 10);
503    }
504
505    if (!pAG10E->regs || !pAG10E->fb) {
506    	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
507		   "xf86MapSbusMem failed regs:%" PRIxPTR " fb:%" PRIxPTR "\n",
508		   pAG10E->regs, pAG10E->fb);
509
510	if (pAG10E->fb) {
511	    xf86UnmapSbusMem(psdp, pAG10E->fb, sizeof(*pAG10E->fb));
512	    pAG10E->fb = NULL;
513	}
514
515	if (pAG10E->regs) {
516	    xf86UnmapSbusMem(psdp, pAG10E->regs, sizeof(*pAG10E->regs));
517	    pAG10E->regs = NULL;
518	}
519
520	return FALSE;
521    }
522    pAG10E->IOOffset = 0;
523    xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "vram: %d\n",
524        (1 << ((GLINT_READ_REG(FBMemoryCtl) & 0xE0000000)>>29)) * 1024);
525
526    /*
527     * The next step is to setup the screen's visuals, and initialise the
528     * framebuffer code.  In cases where the framebuffer's default
529     * choices for things like visual layouts and bits per RGB are OK,
530     * this may be as simple as calling the framebuffer's ScreenInit()
531     * function.  If not, the visuals will need to be setup before calling
532     * a fb ScreenInit() function and fixed up after.
533     */
534
535    /*
536     * Reset visual list.
537     */
538    miClearVisualTypes();
539
540    /* Setup the visuals we support. */
541    if (!miSetVisualTypes(pScrn->depth, miGetDefaultVisualMask(pScrn->depth),
542			  pScrn->rgbBits, pScrn->defaultVisual))
543	return FALSE;
544
545    miSetPixmapDepths();
546
547    /*
548     * Call the framebuffer layer's ScreenInit function, and fill in other
549     * pScreen fields.
550     */
551
552    ret = fbScreenInit(pScreen, pAG10E->fb, pScrn->virtualX,
553		       pScrn->virtualY, pScrn->xDpi, pScrn->yDpi,
554		       pScrn->virtualX, pScrn->bitsPerPixel);
555    /*if (!ret)
556	return FALSE;*/
557
558    pAG10E->width = pScrn->virtualX;
559    pAG10E->height = pScrn->virtualY;
560    pAG10E->maxheight = (pAG10E->vidmem / (pAG10E->width << 2)) & 0xffff;
561
562    fbPictureInit(pScreen, 0, 0);
563
564    visual = pScreen->visuals + pScreen->numVisuals;
565    while (--visual >= pScreen->visuals) {
566      if ((visual->class | DynamicClass) == DirectColor) {
567        visual->offsetRed = pScrn->offset.red;
568	visual->offsetGreen = pScrn->offset.green;
569	visual->offsetBlue = pScrn->offset.blue;
570	visual->redMask = pScrn->mask.red;
571	visual->greenMask = pScrn->mask.green;
572	visual->blueMask = pScrn->mask.blue;
573      }
574    }
575
576    xf86SetBackingStore(pScreen);
577    xf86SetSilkenMouse(pScreen);
578
579    xf86SetBlackWhitePixels(pScreen);
580
581    if (!pAG10E->NoAccel) {
582	if (!AG10EAccelInit(pScreen))
583		return FALSE;
584	xf86Msg(X_INFO, "%s: Using acceleration\n", pAG10E->psdp->device);
585    }
586    /* setup DGA */
587    AG10EDGAInit(pScreen);
588
589    /* Initialise cursor functions */
590    miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
591
592    /* Initialize HW cursor layer.
593       Must follow software cursor initialization*/
594    if (pAG10E->HWCursor) {
595	if(!AG10EHWCursorInit(pScreen)) {
596	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
597		       "Hardware cursor initialization failed\n");
598	    return(FALSE);
599	}
600	xf86SbusHideOsHwCursor(psdp);
601    }
602
603    /* Initialise default colourmap */
604    if (!miCreateDefColormap(pScreen))
605	return FALSE;
606
607    if(!xf86SbusHandleColormaps(pScreen, psdp))
608	return FALSE;
609
610    pAG10E->CloseScreen = pScreen->CloseScreen;
611    pScreen->CloseScreen = AG10ECloseScreen;
612    pScreen->SaveScreen = AG10ESaveScreen;
613
614    /* Report any unused options (only for the first generation) */
615    if (serverGeneration == 1) {
616	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
617    }
618
619    /* unblank the screen */
620    AG10ESaveScreen(pScreen, SCREEN_SAVER_OFF);
621
622    /* Done */
623    return TRUE;
624}
625
626
627/* Usually mandatory */
628static Bool
629AG10ESwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
630{
631    return TRUE;
632}
633
634
635/*
636 * This function is used to initialize the Start Address - the first
637 * displayed location in the video memory.
638 */
639/* Usually mandatory */
640static void
641AG10EAdjustFrame(int scrnIndex, int x, int y, int flags)
642{
643    /* we don't support virtual desktops */
644    return;
645}
646
647/*
648 * This is called when VT switching back to the X server.  Its job is
649 * to reinitialise the video mode.
650 */
651
652/* Mandatory */
653static Bool
654AG10EEnterVT(int scrnIndex, int flags)
655{
656    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
657    AG10EPtr pAG10E = GET_AG10E_FROM_SCRN(pScrn);
658
659    if (pAG10E->HWCursor) {
660	xf86SbusHideOsHwCursor(pAG10E->psdp);
661    }
662    return TRUE;
663}
664
665
666/*
667 * This is called when VT switching away from the X server.
668 */
669
670/* Mandatory */
671static void
672AG10ELeaveVT(int scrnIndex, int flags)
673{
674    return;
675}
676
677
678/*
679 * This is called at the end of each server generation.  It restores the
680 * original (text) mode.  It should really also unmap the video memory too.
681 */
682
683/* Mandatory */
684static Bool
685AG10ECloseScreen(int scrnIndex, ScreenPtr pScreen)
686{
687    ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
688    AG10EPtr pAG10E = GET_AG10E_FROM_SCRN(pScrn);
689    sbusDevicePtr psdp = pAG10E->psdp;
690
691    pScrn->vtSema = FALSE;
692
693    xf86UnmapSbusMem(psdp, pAG10E->regs, 0x10000);
694    xf86UnmapSbusMem(psdp, pAG10E->fb, pAG10E->vidmem);
695
696    if (pAG10E->HWCursor)
697	xf86SbusHideOsHwCursor(psdp);
698
699    pScreen->CloseScreen = pAG10E->CloseScreen;
700    return (*pScreen->CloseScreen)(scrnIndex, pScreen);
701    return FALSE;
702}
703
704
705/* Free up any per-generation data structures */
706
707/* Optional */
708static void
709AG10EFreeScreen(int scrnIndex, int flags)
710{
711    AG10EFreeRec(xf86Screens[scrnIndex]);
712}
713
714
715/* Checks if a mode is suitable for the selected chipset. */
716
717/* Optional */
718static ModeStatus
719AG10EValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
720{
721    if (mode->Flags & V_INTERLACE)
722	return(MODE_NO_INTERLACE);
723
724    return(MODE_OK);
725}
726
727/* Do screen blanking */
728
729/* Mandatory */
730static Bool
731AG10ESaveScreen(ScreenPtr pScreen, int mode)
732{
733    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
734    AG10EPtr pAG10E = GET_AG10E_FROM_SCRN(pScrn);
735    int flag;
736
737    switch (mode)
738    {
739	case SCREEN_SAVER_ON:
740	case SCREEN_SAVER_CYCLE:
741	    flag = 0;
742	    ioctl(pAG10E->psdp->fd, FBIOSVIDEO, &flag);
743	    break;
744	case SCREEN_SAVER_OFF:
745	case SCREEN_SAVER_FORCER:
746	    flag = 1;
747	    ioctl(pAG10E->psdp->fd, FBIOSVIDEO, &flag);
748	    break;
749	default:
750	    return FALSE;
751    }
752
753    return TRUE;
754}
755