cg14_driver.c revision 25ad54ca 
1/*
2 * CG14 framebuffer driver.
3 *
4 * Copyright (C) 2000 Jakub Jelinek (jakub@redhat.com)
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
24#ifdef HAVE_CONFIG_H
25#include "config.h"
26#endif
27
28#include <unistd.h>
29#include <sys/ioctl.h>
30#include <string.h>
31#include <sys/ioctl.h>
32
33#include "xf86.h"
34#include "xf86_OSproc.h"
35#include "mipointer.h"
36#include "micmap.h"
37
38#include "fb.h"
39#include "xf86cmap.h"
40#include "shadow.h"
41#include "cg14.h"
42
43#if 0
44#define static
45#endif
46
47#include "compat-api.h"
48
49static const OptionInfoRec * CG14AvailableOptions(int chipid, int busid);
50static void	CG14Identify(int flags);
51static Bool	CG14Probe(DriverPtr drv, int flags);
52static Bool	CG14PreInit(ScrnInfoPtr pScrn, int flags);
53static Bool	CG14ScreenInit(SCREEN_INIT_ARGS_DECL);
54static Bool	CG14EnterVT(VT_FUNC_ARGS_DECL);
55static void	CG14LeaveVT(VT_FUNC_ARGS_DECL);
56static Bool	CG14CloseScreen(CLOSE_SCREEN_ARGS_DECL);
57static Bool	CG14SaveScreen(ScreenPtr pScreen, int mode);
58static void	CG14InitCplane24(ScrnInfoPtr pScrn);
59static void	CG14ExitCplane24(ScrnInfoPtr pScrn);
60static void    *CG14WindowLinear(ScreenPtr, CARD32, CARD32, int, CARD32 *,
61			      void *);
62static Bool	CG14DriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
63				pointer ptr);
64
65/* Required if the driver supports mode switching */
66static Bool	CG14SwitchMode(SWITCH_MODE_ARGS_DECL);
67/* Required if the driver supports moving the viewport */
68static void	CG14AdjustFrame(ADJUST_FRAME_ARGS_DECL);
69
70/* Optional functions */
71static void	CG14FreeScreen(FREE_SCREEN_ARGS_DECL);
72static ModeStatus CG14ValidMode(SCRN_ARG_TYPE arg, DisplayModePtr mode,
73				Bool verbose, int flags);
74
75void CG14Sync(ScrnInfoPtr pScrn);
76
77#define CG14_VERSION 4000
78#define CG14_NAME "SUNCG14"
79#define CG14_DRIVER_NAME "suncg14"
80#define CG14_MAJOR_VERSION PACKAGE_VERSION_MAJOR
81#define CG14_MINOR_VERSION PACKAGE_VERSION_MINOR
82#define CG14_PATCHLEVEL PACKAGE_VERSION_PATCHLEVEL
83
84/*
85 * This contains the functions needed by the server after loading the driver
86 * module.  It must be supplied, and gets passed back by the SetupProc
87 * function in the dynamic case.  In the static case, a reference to this
88 * is compiled in, and this requires that the name of this DriverRec be
89 * an upper-case version of the driver name.
90 */
91
92_X_EXPORT DriverRec SUNCG14 = {
93    CG14_VERSION,
94    CG14_DRIVER_NAME,
95    CG14Identify,
96    CG14Probe,
97    CG14AvailableOptions,
98    NULL,
99    0,
100    CG14DriverFunc
101};
102
103typedef enum {
104	OPTION_SHADOW_FB,
105	OPTION_HW_CURSOR,
106	OPTION_SW_CURSOR,
107	OPTION_ACCEL,
108	OPTION_XRENDER
109} CG14Opts;
110
111static const OptionInfoRec CG14Options[] = {
112    { OPTION_SHADOW_FB,	"ShadowFB", OPTV_BOOLEAN, {0}, TRUE},
113    { OPTION_ACCEL, 	"Accel",    OPTV_BOOLEAN, {0}, TRUE},
114    { OPTION_XRENDER,	"XRender",  OPTV_BOOLEAN, {0}, FALSE},
115    { -1,			NULL,		OPTV_NONE,	{0}, FALSE }
116};
117
118static MODULESETUPPROTO(cg14Setup);
119
120static XF86ModuleVersionInfo suncg14VersRec =
121{
122	"suncg14",
123	MODULEVENDORSTRING,
124	MODINFOSTRING1,
125	MODINFOSTRING2,
126	XORG_VERSION_CURRENT,
127	CG14_MAJOR_VERSION, CG14_MINOR_VERSION, CG14_PATCHLEVEL,
128	ABI_CLASS_VIDEODRV,
129	ABI_VIDEODRV_VERSION,
130	MOD_CLASS_VIDEODRV,
131	{0,0,0,0}
132};
133
134_X_EXPORT XF86ModuleData suncg14ModuleData = {
135	&suncg14VersRec,
136	cg14Setup,
137	NULL
138};
139
140pointer
141cg14Setup(pointer module, pointer opts, int *errmaj, int *errmin)
142{
143    static Bool setupDone = FALSE;
144
145    if (!setupDone) {
146	setupDone = TRUE;
147	xf86AddDriver(&SUNCG14, module, HaveDriverFuncs);
148
149	/*
150	 * Modules that this driver always requires can be loaded here
151	 * by calling LoadSubModule().
152	 */
153
154	/*
155	 * The return value must be non-NULL on success even though there
156	 * is no TearDownProc.
157	 */
158	return (pointer)TRUE;
159    } else {
160	if (errmaj) *errmaj = LDR_ONCEONLY;
161	return NULL;
162    }
163}
164
165static Bool
166CG14GetRec(ScrnInfoPtr pScrn)
167{
168    /*
169     * Allocate an Cg14Rec, and hook it into pScrn->driverPrivate.
170     * pScrn->driverPrivate is initialised to NULL, so we can check if
171     * the allocation has already been done.
172     */
173    if (pScrn->driverPrivate != NULL)
174	return TRUE;
175
176    pScrn->driverPrivate = xnfcalloc(sizeof(Cg14Rec), 1);
177    return TRUE;
178}
179
180static void
181CG14FreeRec(ScrnInfoPtr pScrn)
182{
183    Cg14Ptr pCg14;
184
185    if (pScrn->driverPrivate == NULL)
186	return;
187
188    pCg14 = GET_CG14_FROM_SCRN(pScrn);
189
190    free(pScrn->driverPrivate);
191    pScrn->driverPrivate = NULL;
192
193    return;
194}
195
196static const OptionInfoRec *
197CG14AvailableOptions(int chipid, int busid)
198{
199    return CG14Options;
200}
201
202/* Mandatory */
203static void
204CG14Identify(int flags)
205{
206    xf86Msg(X_INFO, "%s: driver for CG14\n", CG14_NAME);
207}
208
209
210/* Mandatory */
211static Bool
212CG14Probe(DriverPtr drv, int flags)
213{
214    int i;
215    GDevPtr *devSections;
216    int *usedChips;
217    int numDevSections;
218    int numUsed;
219    Bool foundScreen = FALSE;
220    EntityInfoPtr pEnt;
221
222    /*
223     * The aim here is to find all cards that this driver can handle,
224     * and for the ones not already claimed by another driver, claim the
225     * slot, and allocate a ScrnInfoRec.
226     *
227     * This should be a minimal probe, and it should under no circumstances
228     * change the state of the hardware.  Because a device is found, don't
229     * assume that it will be used.  Don't do any initialisations other than
230     * the required ScrnInfoRec initialisations.  Don't allocate any new
231     * data structures.
232     */
233
234    /*
235     * Next we check, if there has been a chipset override in the config file.
236     * For this we must find out if there is an active device section which
237     * is relevant, i.e., which has no driver specified or has THIS driver
238     * specified.
239     */
240
241    if ((numDevSections = xf86MatchDevice(CG14_DRIVER_NAME,
242					  &devSections)) <= 0) {
243	/*
244	 * There's no matching device section in the config file, so quit
245	 * now.
246	 */
247	return FALSE;
248    }
249
250    /*
251     * We need to probe the hardware first.  We then need to see how this
252     * fits in with what is given in the config file, and allow the config
253     * file info to override any contradictions.
254     */
255
256    numUsed = xf86MatchSbusInstances(CG14_NAME, SBUS_DEVICE_CG14,
257		   devSections, numDevSections,
258		   drv, &usedChips);
259
260    free(devSections);
261    if (numUsed <= 0)
262	return FALSE;
263
264    if (flags & PROBE_DETECT)
265	foundScreen = TRUE;
266    else for (i = 0; i < numUsed; i++) {
267	pEnt = xf86GetEntityInfo(usedChips[i]);
268
269	/*
270	 * Check that nothing else has claimed the slots.
271	 */
272	if(pEnt->active) {
273	    ScrnInfoPtr pScrn;
274
275	    /* Allocate a ScrnInfoRec and claim the slot */
276	    pScrn = xf86AllocateScreen(drv, 0);
277
278	    /* Fill in what we can of the ScrnInfoRec */
279	    pScrn->driverVersion = CG14_VERSION;
280	    pScrn->driverName	 = CG14_DRIVER_NAME;
281	    pScrn->name		 = CG14_NAME;
282	    pScrn->Probe	 = CG14Probe;
283	    pScrn->PreInit	 = CG14PreInit;
284	    pScrn->ScreenInit	 = CG14ScreenInit;
285  	    pScrn->SwitchMode	 = CG14SwitchMode;
286  	    pScrn->AdjustFrame	 = CG14AdjustFrame;
287	    pScrn->EnterVT	 = CG14EnterVT;
288	    pScrn->LeaveVT	 = CG14LeaveVT;
289	    pScrn->FreeScreen	 = CG14FreeScreen;
290	    pScrn->ValidMode	 = CG14ValidMode;
291	    xf86AddEntityToScreen(pScrn, pEnt->index);
292	    foundScreen = TRUE;
293	}
294	free(pEnt);
295    }
296    free(usedChips);
297    return foundScreen;
298}
299
300/* Mandatory */
301static Bool
302CG14PreInit(ScrnInfoPtr pScrn, int flags)
303{
304    Cg14Ptr pCg14;
305    sbusDevicePtr psdp = NULL;
306    int i, from, size, len, reg[6], prom;
307    char *ptr;
308
309    if (flags & PROBE_DETECT) return FALSE;
310
311    /*
312     * Note: This function is only called once at server startup, and
313     * not at the start of each server generation.  This means that
314     * only things that are persistent across server generations can
315     * be initialised here.  xf86Screens[] is (pScrn is a pointer to one
316     * of these).  Privates allocated using xf86AllocateScrnInfoPrivateIndex()
317     * are too, and should be used for data that must persist across
318     * server generations.
319     *
320     * Per-generation data should be allocated with
321     * AllocateScreenPrivateIndex() from the ScreenInit() function.
322     */
323
324    /* Allocate the Cg14Rec driverPrivate */
325    if (!CG14GetRec(pScrn)) {
326	return FALSE;
327    }
328    pCg14 = GET_CG14_FROM_SCRN(pScrn);
329
330    /* Set pScrn->monitor */
331    pScrn->monitor = pScrn->confScreen->monitor;
332
333    /* This driver doesn't expect more than one entity per screen */
334    if (pScrn->numEntities > 1)
335	return FALSE;
336    /* This is the general case */
337    for (i = 0; i < pScrn->numEntities; i++) {
338	EntityInfoPtr pEnt = xf86GetEntityInfo(pScrn->entityList[i]);
339
340	/* CG14 is purely AFX, but we handle it like SBUS */
341	if (pEnt->location.type == BUS_SBUS) {
342	    psdp = xf86GetSbusInfoForEntity(pEnt->index);
343	    pCg14->psdp = psdp;
344	} else
345	    return FALSE;
346    }
347    if (psdp == NULL)
348	return FALSE;
349
350    pCg14->memsize = 4 * 1024 * 1024;	/* always safe */
351    len = 24;
352    prom = sparcPromInit();
353    if ((ptr = sparcPromGetProperty(&psdp->node, "reg", &len))) {
354    	if (len >= 24) {
355    	    memcpy(reg, ptr, 24);
356    	    size = reg[5];
357    	    xf86Msg(X_INFO, "memsize from reg: %d MB\n", size >> 20);
358	    if (size > pCg14->memsize)
359    		pCg14->memsize = size;
360    	}
361    }
362    xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "found %d MB video memory\n",
363      pCg14->memsize >> 20);
364    /*********************
365    deal with depth
366    *********************/
367
368    if (!xf86SetDepthBpp(pScrn, 0, 0, 0, Support24bppFb|Support32bppFb))
369		return FALSE;
370    /* Check that the returned depth is one we support */
371    switch (pScrn->depth) {
372	case 32:
373	case 24:
374	case 8:
375	    /* OK */
376	    break;
377	default:
378	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
379		       "Given depth (%d) is not supported by this driver\n",
380		       pScrn->depth);
381	    return FALSE;
382    }
383
384    /* Collect all of the relevant option flags (fill in pScrn->options) */
385    xf86CollectOptions(pScrn, NULL);
386    /* Process the options */
387    if (!(pCg14->Options = malloc(sizeof(CG14Options))))
388	return FALSE;
389    memcpy(pCg14->Options, CG14Options, sizeof(CG14Options));
390    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pCg14->Options);
391    pCg14->use_shadow = xf86ReturnOptValBool(pCg14->Options, OPTION_SHADOW_FB,
392        TRUE);
393    pCg14->use_accel = xf86ReturnOptValBool(pCg14->Options, OPTION_ACCEL,
394        TRUE);
395    pCg14->use_xrender = xf86ReturnOptValBool(pCg14->Options, OPTION_XRENDER,
396        FALSE);
397
398    /*
399     * This must happen after pScrn->display has been set because
400     * xf86SetWeight references it.
401     */
402    if (pScrn->depth > 8) {
403	rgb weight = {0, 0, 0};
404	rgb mask = {0xff, 0xff00, 0xff0000};
405
406	if (!xf86SetWeight(pScrn, weight, mask)) {
407	    return FALSE;
408	}
409    }
410
411    if (!xf86SetDefaultVisual(pScrn, -1))
412	return FALSE;
413    else if (pScrn->depth > 8) {
414	/* We don't currently support DirectColor */
415	if (pScrn->defaultVisual != TrueColor) {
416	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Given default visual"
417		       " (%s) is not supported\n",
418		       xf86GetVisualName(pScrn->defaultVisual));
419	    return FALSE;
420	}
421    }
422
423    /*
424     * The new cmap code requires this to be initialised.
425     */
426
427    {
428	Gamma zeros = {0.0, 0.0, 0.0};
429
430	if (!xf86SetGamma(pScrn, zeros)) {
431	    return FALSE;
432	}
433    }
434
435    if (xf86LoadSubModule(pScrn, "fb") == NULL) {
436	CG14FreeRec(pScrn);
437	return FALSE;
438    }
439
440    if (pCg14->use_shadow) {
441	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Using shadow framebuffer\n");
442	if (xf86LoadSubModule(pScrn, "shadow") == NULL) {
443	    CG14FreeRec(pScrn);
444	    return FALSE;
445	}
446    }
447
448    from = X_DEFAULT;
449    pCg14->HWCursor = TRUE;
450    if (xf86GetOptValBool(pCg14->Options, OPTION_HW_CURSOR, &pCg14->HWCursor))
451	from = X_CONFIG;
452    if (xf86ReturnOptValBool(pCg14->Options, OPTION_SW_CURSOR, FALSE)) {
453	from = X_CONFIG;
454	pCg14->HWCursor = FALSE;
455    }
456    xf86DrvMsg(pScrn->scrnIndex, from, "Using %s cursor\n",
457		pCg14->HWCursor ? "HW" : "SW");
458
459    /*********************
460    set up clock and mode stuff
461    *********************/
462
463    pScrn->progClock = TRUE;
464
465    if(pScrn->display->virtualX || pScrn->display->virtualY) {
466	xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
467		   "CG14 does not support a virtual desktop\n");
468	pScrn->display->virtualX = 0;
469	pScrn->display->virtualY = 0;
470    }
471
472    xf86SbusUseBuiltinMode(pScrn, pCg14->psdp);
473    pScrn->currentMode = pScrn->modes;
474    pScrn->displayWidth = pScrn->virtualX;
475
476    /* Set display resolution */
477    xf86SetDpi(pScrn, 0, 0);
478
479    return TRUE;
480}
481
482static void
483CG14UpdatePacked(ScreenPtr pScreen, shadowBufPtr pBuf)
484{
485	shadowUpdatePacked(pScreen, pBuf);
486}
487
488static Bool
489CG14CreateScreenResources(ScreenPtr pScreen)
490{
491    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
492    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
493    PixmapPtr pPixmap;
494    Bool ret;
495
496    pScreen->CreateScreenResources = pCg14->CreateScreenResources;
497    ret = pScreen->CreateScreenResources(pScreen);
498    pScreen->CreateScreenResources = CG14CreateScreenResources;
499
500    if (!ret)
501	return FALSE;
502
503    pPixmap = pScreen->GetScreenPixmap(pScreen);
504
505    if (!shadowAdd(pScreen, pPixmap, CG14UpdatePacked,
506	CG14WindowLinear, 0, NULL)) {
507	return FALSE;
508    }
509    return TRUE;
510}
511
512
513static Bool
514CG14ShadowInit(ScreenPtr pScreen)
515{
516    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
517    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
518
519    if (!shadowSetup(pScreen)) {
520	return FALSE;
521    }
522
523    pCg14->CreateScreenResources = pScreen->CreateScreenResources;
524    pScreen->CreateScreenResources = CG14CreateScreenResources;
525
526    return TRUE;
527}
528/* Mandatory */
529
530/* This gets called at the start of each server generation */
531
532static Bool
533CG14ScreenInit(SCREEN_INIT_ARGS_DECL)
534{
535    ScrnInfoPtr pScrn;
536    Cg14Ptr pCg14;
537    VisualPtr visual;
538    int ret, have_accel = 0;
539
540    /*
541     * First get the ScrnInfoRec
542     */
543    pScrn = xf86ScreenToScrn(pScreen);
544
545    pCg14 = GET_CG14_FROM_SCRN(pScrn);
546
547    /* Map the CG14 memory */
548    pCg14->fb = xf86MapSbusMem (pCg14->psdp, CG14_DIRECT_VOFF, pCg14->memsize);
549    pCg14->x32 = xf86MapSbusMem (pCg14->psdp, CG14_X32_VOFF,
550				 (pCg14->psdp->width * pCg14->psdp->height));
551    pCg14->xlut = xf86MapSbusMem (pCg14->psdp, CG14_XLUT_VOFF, 4096);
552    pCg14->curs = xf86MapSbusMem (pCg14->psdp, CG14_CURSOR_VOFF, 4096);
553
554    pCg14->sxreg = xf86MapSbusMem (pCg14->psdp, CG14_SXREG_VOFF, 4096);
555    pCg14->sxio = xf86MapSbusMem (pCg14->psdp, CG14_SXIO_VOFF, 0x04000000);
556    have_accel = (pCg14->sxreg != NULL) && (pCg14->sxio != NULL);
557
558    if (have_accel) {
559    	xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
560    	  "found kernel support for SX acceleration\n");
561    }
562    have_accel = have_accel & pCg14->use_accel;
563    if (have_accel) {
564    	xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "using acceleration\n");
565    	if (pCg14->use_shadow)
566    	    xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "disabling shadow\n");
567    	pCg14->use_shadow = FALSE;
568    }
569
570    pCg14->width = pCg14->psdp->width;
571    pCg14->height = pCg14->psdp->height;
572
573    if (! pCg14->fb || !pCg14->x32 || !pCg14->xlut || !pCg14->curs) {
574    	xf86Msg(X_ERROR,
575	    "can't mmap something: fd %08x  x32 %08x xlut %08x cursor %08x\n",
576	    (uint32_t)pCg14->fb, (uint32_t)pCg14->x32, (uint32_t)pCg14->xlut,
577	    (uint32_t)pCg14->curs);
578	return FALSE;
579    }
580
581    /* Darken the screen for aesthetic reasons and set the viewport */
582    CG14SaveScreen(pScreen, SCREEN_SAVER_ON);
583
584    /*
585     * The next step is to setup the screen's visuals, and initialise the
586     * framebuffer code.  In cases where the framebuffer's default
587     * choices for things like visual layouts and bits per RGB are OK,
588     * this may be as simple as calling the framebuffer's ScreenInit()
589     * function.  If not, the visuals will need to be setup before calling
590     * a fb ScreenInit() function and fixed up after.
591     */
592
593    /*
594     * Reset visual list.
595     */
596    miClearVisualTypes();
597
598    /* Set the bits per RGB for 8bpp mode */
599    pScrn->rgbBits = 8;
600
601    /* Setup the visuals we support. */
602    if (!miSetVisualTypes(pScrn->depth, miGetDefaultVisualMask(pScrn->depth),
603			  pScrn->rgbBits, pScrn->defaultVisual))
604	return FALSE;
605
606    miSetPixmapDepths ();
607
608    if (pCg14->use_shadow) {
609	pCg14->shadow = malloc(pScrn->virtualX * pScrn->virtualY * 4);
610
611	if (!pCg14->shadow) {
612	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
613	        "Failed to allocate shadow framebuffer\n");
614	    return FALSE;
615	}
616    }
617
618    /*
619     * Call the framebuffer layer's ScreenInit function, and fill in other
620     * pScreen fields.
621     */
622
623    CG14InitCplane24(pScrn);
624
625    ret = fbScreenInit(pScreen, pCg14->use_shadow ? pCg14->shadow : pCg14->fb,
626    		       pScrn->virtualX,
627		       pScrn->virtualY, pScrn->xDpi, pScrn->yDpi,
628		       pScrn->virtualX, pScrn->bitsPerPixel);
629
630    if (!ret)
631	return FALSE;
632
633    /* must be after RGB ordering fixed */
634    fbPictureInit (pScreen, 0, 0);
635
636    if (pCg14->use_shadow && !CG14ShadowInit(pScreen)) {
637	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
638		    "shadow framebuffer initialization failed\n");
639	return FALSE;
640    }
641
642    xf86SetBackingStore(pScreen);
643    xf86SetSilkenMouse(pScreen);
644
645    xf86SetBlackWhitePixels(pScreen);
646
647    if (pScrn->bitsPerPixel > 8) {
648	/* Fixup RGB ordering */
649	visual = pScreen->visuals + pScreen->numVisuals;
650	while (--visual >= pScreen->visuals) {
651	    if ((visual->class | DynamicClass) == DirectColor) {
652		visual->offsetRed = pScrn->offset.red;
653		visual->offsetGreen = pScrn->offset.green;
654		visual->offsetBlue = pScrn->offset.blue;
655		visual->redMask = pScrn->mask.red;
656		visual->greenMask = pScrn->mask.green;
657		visual->blueMask = pScrn->mask.blue;
658	    }
659	}
660    }
661
662    /* setup acceleration */
663    if (have_accel) {
664	XF86ModReqInfo req;
665	int errmaj, errmin;
666
667	memset(&req, 0, sizeof(XF86ModReqInfo));
668	req.majorversion = 2;
669	req.minorversion = 0;
670	if (!LoadSubModule(pScrn->module, "exa", NULL, NULL, NULL, &req,
671	    &errmaj, &errmin)) {
672		LoaderErrorMsg(NULL, "exa", errmaj, errmin);
673		return FALSE;
674	}
675	if (!CG14InitAccel(pScreen))
676	    have_accel = FALSE;
677    }
678
679
680    /* Initialise cursor functions */
681    miDCInitialize (pScreen, xf86GetPointerScreenFuncs());
682
683    /* check for hardware cursor support */
684    if (pCg14->HWCursor)
685	CG14SetupCursor(pScreen);
686
687    /* Initialise default colourmap */
688    if (!miCreateDefColormap(pScreen))
689	return FALSE;
690
691    if(!xf86SbusHandleColormaps(pScreen, pCg14->psdp))
692	return FALSE;
693
694    pCg14->CloseScreen = pScreen->CloseScreen;
695    pScreen->CloseScreen = CG14CloseScreen;
696    pScreen->SaveScreen = CG14SaveScreen;
697
698    /* Report any unused options (only for the first generation) */
699    if (serverGeneration == 1) {
700	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
701    }
702
703    /* unblank the screen */
704    CG14SaveScreen(pScreen, SCREEN_SAVER_OFF);
705
706    /* Done */
707    return TRUE;
708}
709
710
711/* Usually mandatory */
712static Bool
713CG14SwitchMode(SWITCH_MODE_ARGS_DECL)
714{
715    xf86Msg(X_ERROR, "CG14SwitchMode\n");
716    return TRUE;
717}
718
719
720/*
721 * This function is used to initialize the Start Address - the first
722 * displayed location in the video memory.
723 */
724/* Usually mandatory */
725static void
726CG14AdjustFrame(ADJUST_FRAME_ARGS_DECL)
727{
728    /* we don't support virtual desktops */
729    return;
730}
731
732/*
733 * This is called when VT switching back to the X server.  Its job is
734 * to reinitialise the video mode.
735 */
736
737/* Mandatory */
738static Bool
739CG14EnterVT(VT_FUNC_ARGS_DECL)
740{
741    SCRN_INFO_PTR(arg);
742
743    CG14InitCplane24 (pScrn);
744    return TRUE;
745}
746
747
748/*
749 * This is called when VT switching away from the X server.
750 */
751
752/* Mandatory */
753static void
754CG14LeaveVT(VT_FUNC_ARGS_DECL)
755{
756    SCRN_INFO_PTR(arg);
757
758    CG14ExitCplane24 (pScrn);
759    return;
760}
761
762
763/*
764 * This is called at the end of each server generation.  It restores the
765 * original (text) mode.  It should really also unmap the video memory too.
766 */
767
768/* Mandatory */
769static Bool
770CG14CloseScreen(CLOSE_SCREEN_ARGS_DECL)
771{
772    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
773    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
774    PixmapPtr pPixmap;
775
776    if (pCg14->use_shadow) {
777
778	pPixmap = pScreen->GetScreenPixmap(pScreen);
779	shadowRemove(pScreen, pPixmap);
780	pCg14->use_shadow = FALSE;
781    }
782
783    pScrn->vtSema = FALSE;
784    CG14ExitCplane24 (pScrn);
785    xf86UnmapSbusMem(pCg14->psdp, pCg14->fb, pCg14->memsize);
786    xf86UnmapSbusMem(pCg14->psdp, pCg14->x32,
787		     (pCg14->psdp->width * pCg14->psdp->height));
788    xf86UnmapSbusMem(pCg14->psdp, pCg14->xlut, 4096);
789    xf86UnmapSbusMem(pCg14->psdp, pCg14->curs, 4096);
790
791    pScreen->CloseScreen = pCg14->CloseScreen;
792    return (*pScreen->CloseScreen)(CLOSE_SCREEN_ARGS);
793}
794
795static void *
796CG14WindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
797		CARD32 *size, void *closure)
798{
799    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
800    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
801    int shift = (pScrn->bitsPerPixel > 8) ? 2 : 0;
802
803    *size = pCg14->width << shift;
804    return (CARD8 *)pCg14->fb + row * (pCg14->width << shift) + offset;
805}
806
807/* Free up any per-generation data structures */
808
809/* Optional */
810static void
811CG14FreeScreen(FREE_SCREEN_ARGS_DECL)
812{
813    SCRN_INFO_PTR(arg);
814    CG14FreeRec(pScrn);
815}
816
817
818/* Checks if a mode is suitable for the selected chipset. */
819
820/* Optional */
821static ModeStatus
822CG14ValidMode(SCRN_ARG_TYPE arg, DisplayModePtr mode, Bool verbose, int flags)
823{
824    if (mode->Flags & V_INTERLACE)
825	return(MODE_BAD);
826
827    return(MODE_OK);
828}
829
830/* Do screen blanking */
831
832/* Mandatory */
833static Bool
834CG14SaveScreen(ScreenPtr pScreen, int mode)
835{
836    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
837    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
838    int state;
839    switch(mode) {
840	case SCREEN_SAVER_ON:
841	case SCREEN_SAVER_CYCLE:
842		state = FBVIDEO_OFF;
843		ioctl(pCg14->psdp->fd, FBIOSVIDEO, &state);
844		break;
845	case SCREEN_SAVER_OFF:
846	case SCREEN_SAVER_FORCER:
847		state = FBVIDEO_ON;
848		ioctl(pCg14->psdp->fd, FBIOSVIDEO, &state);
849		break;
850	default:
851		return FALSE;
852    }
853    return TRUE;
854}
855
856/*
857 * This is the implementation of the Sync() function.
858 */
859void
860CG14Sync(ScrnInfoPtr pScrn)
861{
862    return;
863}
864
865/*
866 * This initializes the card for 24 bit mode.
867 */
868static void
869CG14InitCplane24(ScrnInfoPtr pScrn)
870{
871  Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
872  int size, bpp;
873
874  size = pScrn->virtualX * pScrn->virtualY;
875  if (pScrn->bitsPerPixel > 8) {
876  	bpp = 32;
877  } else
878  	bpp = 8;
879  ioctl (pCg14->psdp->fd, CG14_SET_PIXELMODE, &bpp);
880  memset (pCg14->fb, 0, size * (bpp >> 3));
881  memset (pCg14->x32, 0, size);
882  memset (pCg14->xlut, 0, 0x200);
883}
884
885/*
886 * This initializes the card for 8 bit mode.
887 */
888static void
889CG14ExitCplane24(ScrnInfoPtr pScrn)
890{
891  Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
892  int bpp = 8;
893
894  ioctl (pCg14->psdp->fd, CG14_SET_PIXELMODE, &bpp);
895}
896
897
898static Bool
899CG14DriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
900    pointer ptr)
901{
902	xorgHWFlags *flag;
903
904	switch (op) {
905	case GET_REQUIRED_HW_INTERFACES:
906		flag = (CARD32*)ptr;
907		(*flag) = HW_MMIO;
908		return TRUE;
909	default:
910		return FALSE;
911	}
912}
913