cg14_driver.c revision fe196524 
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 <sys/ioctl.h>
29#include <string.h>
30#include <sys/ioctl.h>
31
32#include "xf86.h"
33#include "xf86_OSproc.h"
34#include "mipointer.h"
35#include "micmap.h"
36
37#include "fb.h"
38#include "xf86cmap.h"
39#include "shadow.h"
40#include "cg14.h"
41
42#if 0
43#define static
44#endif
45
46#include "compat-api.h"
47
48static const OptionInfoRec * CG14AvailableOptions(int chipid, int busid);
49static void	CG14Identify(int flags);
50static Bool	CG14Probe(DriverPtr drv, int flags);
51static Bool	CG14PreInit(ScrnInfoPtr pScrn, int flags);
52static Bool	CG14ScreenInit(SCREEN_INIT_ARGS_DECL);
53static Bool	CG14EnterVT(VT_FUNC_ARGS_DECL);
54static void	CG14LeaveVT(VT_FUNC_ARGS_DECL);
55static Bool	CG14CloseScreen(CLOSE_SCREEN_ARGS_DECL);
56static Bool	CG14SaveScreen(ScreenPtr pScreen, int mode);
57static void	CG14InitCplane24(ScrnInfoPtr pScrn);
58static void	CG14ExitCplane24(ScrnInfoPtr pScrn);
59static void    *CG14WindowLinear(ScreenPtr, CARD32, CARD32, int, CARD32 *,
60			      void *);
61static Bool	CG14DriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
62				pointer ptr);
63
64/* Required if the driver supports mode switching */
65static Bool	CG14SwitchMode(SWITCH_MODE_ARGS_DECL);
66/* Required if the driver supports moving the viewport */
67static void	CG14AdjustFrame(ADJUST_FRAME_ARGS_DECL);
68
69/* Optional functions */
70static void	CG14FreeScreen(FREE_SCREEN_ARGS_DECL);
71static ModeStatus CG14ValidMode(SCRN_ARG_TYPE arg, DisplayModePtr mode,
72				Bool verbose, int flags);
73
74void CG14Sync(ScrnInfoPtr pScrn);
75
76#define CG14_VERSION 4000
77#define CG14_NAME "SUNCG14"
78#define CG14_DRIVER_NAME "suncg14"
79#define CG14_MAJOR_VERSION PACKAGE_VERSION_MAJOR
80#define CG14_MINOR_VERSION PACKAGE_VERSION_MINOR
81#define CG14_PATCHLEVEL PACKAGE_VERSION_PATCHLEVEL
82
83/*
84 * This contains the functions needed by the server after loading the driver
85 * module.  It must be supplied, and gets passed back by the SetupProc
86 * function in the dynamic case.  In the static case, a reference to this
87 * is compiled in, and this requires that the name of this DriverRec be
88 * an upper-case version of the driver name.
89 */
90
91_X_EXPORT DriverRec SUNCG14 = {
92    CG14_VERSION,
93    CG14_DRIVER_NAME,
94    CG14Identify,
95    CG14Probe,
96    CG14AvailableOptions,
97    NULL,
98    0,
99    CG14DriverFunc
100};
101
102typedef enum {
103	OPTION_SHADOW_FB,
104	OPTION_HW_CURSOR,
105	OPTION_SW_CURSOR,
106	OPTION_ACCEL,
107	OPTION_XRENDER
108} CG14Opts;
109
110static const OptionInfoRec CG14Options[] = {
111    { OPTION_SHADOW_FB,	"ShadowFB", OPTV_BOOLEAN, {0}, TRUE},
112    { OPTION_ACCEL, 	"Accel",    OPTV_BOOLEAN, {0}, TRUE},
113    { OPTION_XRENDER,	"XRender",  OPTV_BOOLEAN, {0}, FALSE},
114    { -1,			NULL,		OPTV_NONE,	{0}, FALSE }
115};
116
117static MODULESETUPPROTO(cg14Setup);
118
119static XF86ModuleVersionInfo suncg14VersRec =
120{
121	"suncg14",
122	MODULEVENDORSTRING,
123	MODINFOSTRING1,
124	MODINFOSTRING2,
125	XORG_VERSION_CURRENT,
126	CG14_MAJOR_VERSION, CG14_MINOR_VERSION, CG14_PATCHLEVEL,
127	ABI_CLASS_VIDEODRV,
128	ABI_VIDEODRV_VERSION,
129	MOD_CLASS_VIDEODRV,
130	{0,0,0,0}
131};
132
133_X_EXPORT XF86ModuleData suncg14ModuleData = {
134	&suncg14VersRec,
135	cg14Setup,
136	NULL
137};
138
139pointer
140cg14Setup(pointer module, pointer opts, int *errmaj, int *errmin)
141{
142    static Bool setupDone = FALSE;
143
144    if (!setupDone) {
145	setupDone = TRUE;
146	xf86AddDriver(&SUNCG14, module, HaveDriverFuncs);
147
148	/*
149	 * Modules that this driver always requires can be loaded here
150	 * by calling LoadSubModule().
151	 */
152
153	/*
154	 * The return value must be non-NULL on success even though there
155	 * is no TearDownProc.
156	 */
157	return (pointer)TRUE;
158    } else {
159	if (errmaj) *errmaj = LDR_ONCEONLY;
160	return NULL;
161    }
162}
163
164static Bool
165CG14GetRec(ScrnInfoPtr pScrn)
166{
167    /*
168     * Allocate an Cg14Rec, and hook it into pScrn->driverPrivate.
169     * pScrn->driverPrivate is initialised to NULL, so we can check if
170     * the allocation has already been done.
171     */
172    if (pScrn->driverPrivate != NULL)
173	return TRUE;
174
175    pScrn->driverPrivate = xnfcalloc(sizeof(Cg14Rec), 1);
176    return TRUE;
177}
178
179static void
180CG14FreeRec(ScrnInfoPtr pScrn)
181{
182    Cg14Ptr pCg14;
183
184    if (pScrn->driverPrivate == NULL)
185	return;
186
187    pCg14 = GET_CG14_FROM_SCRN(pScrn);
188
189    free(pScrn->driverPrivate);
190    pScrn->driverPrivate = NULL;
191
192    return;
193}
194
195static const OptionInfoRec *
196CG14AvailableOptions(int chipid, int busid)
197{
198    return CG14Options;
199}
200
201/* Mandatory */
202static void
203CG14Identify(int flags)
204{
205    xf86Msg(X_INFO, "%s: driver for CG14\n", CG14_NAME);
206}
207
208
209/* Mandatory */
210static Bool
211CG14Probe(DriverPtr drv, int flags)
212{
213    int i;
214    GDevPtr *devSections;
215    int *usedChips;
216    int numDevSections;
217    int numUsed;
218    Bool foundScreen = FALSE;
219    EntityInfoPtr pEnt;
220
221    /*
222     * The aim here is to find all cards that this driver can handle,
223     * and for the ones not already claimed by another driver, claim the
224     * slot, and allocate a ScrnInfoRec.
225     *
226     * This should be a minimal probe, and it should under no circumstances
227     * change the state of the hardware.  Because a device is found, don't
228     * assume that it will be used.  Don't do any initialisations other than
229     * the required ScrnInfoRec initialisations.  Don't allocate any new
230     * data structures.
231     */
232
233    /*
234     * Next we check, if there has been a chipset override in the config file.
235     * For this we must find out if there is an active device section which
236     * is relevant, i.e., which has no driver specified or has THIS driver
237     * specified.
238     */
239
240    if ((numDevSections = xf86MatchDevice(CG14_DRIVER_NAME,
241					  &devSections)) <= 0) {
242	/*
243	 * There's no matching device section in the config file, so quit
244	 * now.
245	 */
246	return FALSE;
247    }
248
249    /*
250     * We need to probe the hardware first.  We then need to see how this
251     * fits in with what is given in the config file, and allow the config
252     * file info to override any contradictions.
253     */
254
255    numUsed = xf86MatchSbusInstances(CG14_NAME, SBUS_DEVICE_CG14,
256		   devSections, numDevSections,
257		   drv, &usedChips);
258
259    free(devSections);
260    if (numUsed <= 0)
261	return FALSE;
262
263    if (flags & PROBE_DETECT)
264	foundScreen = TRUE;
265    else for (i = 0; i < numUsed; i++) {
266	pEnt = xf86GetEntityInfo(usedChips[i]);
267
268	/*
269	 * Check that nothing else has claimed the slots.
270	 */
271	if(pEnt->active) {
272	    ScrnInfoPtr pScrn;
273
274	    /* Allocate a ScrnInfoRec and claim the slot */
275	    pScrn = xf86AllocateScreen(drv, 0);
276
277	    /* Fill in what we can of the ScrnInfoRec */
278	    pScrn->driverVersion = CG14_VERSION;
279	    pScrn->driverName	 = CG14_DRIVER_NAME;
280	    pScrn->name		 = CG14_NAME;
281	    pScrn->Probe	 = CG14Probe;
282	    pScrn->PreInit	 = CG14PreInit;
283	    pScrn->ScreenInit	 = CG14ScreenInit;
284  	    pScrn->SwitchMode	 = CG14SwitchMode;
285  	    pScrn->AdjustFrame	 = CG14AdjustFrame;
286	    pScrn->EnterVT	 = CG14EnterVT;
287	    pScrn->LeaveVT	 = CG14LeaveVT;
288	    pScrn->FreeScreen	 = CG14FreeScreen;
289	    pScrn->ValidMode	 = CG14ValidMode;
290	    xf86AddEntityToScreen(pScrn, pEnt->index);
291	    foundScreen = TRUE;
292	}
293	free(pEnt);
294    }
295    free(usedChips);
296    return foundScreen;
297}
298
299/* Mandatory */
300static Bool
301CG14PreInit(ScrnInfoPtr pScrn, int flags)
302{
303    Cg14Ptr pCg14;
304    sbusDevicePtr psdp = NULL;
305    int i, from, size, len, reg[6], prom;
306    char *ptr;
307
308    if (flags & PROBE_DETECT) return FALSE;
309
310    /*
311     * Note: This function is only called once at server startup, and
312     * not at the start of each server generation.  This means that
313     * only things that are persistent across server generations can
314     * be initialised here.  xf86Screens[] is (pScrn is a pointer to one
315     * of these).  Privates allocated using xf86AllocateScrnInfoPrivateIndex()
316     * are too, and should be used for data that must persist across
317     * server generations.
318     *
319     * Per-generation data should be allocated with
320     * AllocateScreenPrivateIndex() from the ScreenInit() function.
321     */
322
323    /* Allocate the Cg14Rec driverPrivate */
324    if (!CG14GetRec(pScrn)) {
325	return FALSE;
326    }
327    pCg14 = GET_CG14_FROM_SCRN(pScrn);
328
329    /* Set pScrn->monitor */
330    pScrn->monitor = pScrn->confScreen->monitor;
331
332    /* This driver doesn't expect more than one entity per screen */
333    if (pScrn->numEntities > 1)
334	return FALSE;
335    /* This is the general case */
336    for (i = 0; i < pScrn->numEntities; i++) {
337	EntityInfoPtr pEnt = xf86GetEntityInfo(pScrn->entityList[i]);
338
339	/* CG14 is purely AFX, but we handle it like SBUS */
340	if (pEnt->location.type == BUS_SBUS) {
341	    psdp = xf86GetSbusInfoForEntity(pEnt->index);
342	    pCg14->psdp = psdp;
343	} else
344	    return FALSE;
345    }
346    if (psdp == NULL)
347	return FALSE;
348
349    pCg14->memsize = 4 * 1024 * 1024;	/* always safe */
350    if ((psdp->height * psdp->width * 4) > 0x00400000)
351    	 pCg14->memsize = 0x00800000;
352    len = 24;
353    prom = sparcPromInit();
354    if ((ptr = sparcPromGetProperty(&psdp->node, "reg", &len))) {
355    	if (len >= 24) {
356    	    memcpy(reg, ptr, 24);
357    	    size = reg[5];
358    	    xf86Msg(X_INFO, "memsize from reg: %d MB\n", size >> 20);
359	    if (size > pCg14->memsize)
360    		pCg14->memsize = size;
361    	}
362    }
363    xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "found %d MB video memory\n",
364      pCg14->memsize >> 20);
365    /*********************
366    deal with depth
367    *********************/
368
369    if (!xf86SetDepthBpp(pScrn, 0, 0, 0, Support24bppFb|Support32bppFb))
370		return FALSE;
371    /* Check that the returned depth is one we support */
372    switch (pScrn->depth) {
373	case 32:
374	case 24:
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    /* Setup the visuals we support. */
599
600    if (!miSetVisualTypes(pScrn->depth, TrueColorMask,
601			  pScrn->rgbBits, pScrn->defaultVisual))
602	return FALSE;
603
604    miSetPixmapDepths ();
605
606    if (pCg14->use_shadow) {
607	pCg14->shadow = malloc(pScrn->virtualX * pScrn->virtualY * 4);
608
609	if (!pCg14->shadow) {
610	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
611	        "Failed to allocate shadow framebuffer\n");
612	    return FALSE;
613	}
614    }
615
616    /*
617     * Call the framebuffer layer's ScreenInit function, and fill in other
618     * pScreen fields.
619     */
620
621    CG14InitCplane24(pScrn);
622    ret = fbScreenInit(pScreen, pCg14->use_shadow ? pCg14->shadow : pCg14->fb,
623    		       pScrn->virtualX,
624		       pScrn->virtualY, pScrn->xDpi, pScrn->yDpi,
625		       pScrn->virtualX, pScrn->bitsPerPixel);
626
627    if (!ret)
628	return FALSE;
629
630    /* must be after RGB ordering fixed */
631    fbPictureInit (pScreen, 0, 0);
632
633    if (pCg14->use_shadow && !CG14ShadowInit(pScreen)) {
634	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
635		    "shadow framebuffer initialization failed\n");
636	return FALSE;
637    }
638
639    xf86SetBackingStore(pScreen);
640    xf86SetSilkenMouse(pScreen);
641
642    xf86SetBlackWhitePixels(pScreen);
643
644    if (pScrn->bitsPerPixel > 8) {
645	/* Fixup RGB ordering */
646	visual = pScreen->visuals + pScreen->numVisuals;
647	while (--visual >= pScreen->visuals) {
648	    if ((visual->class | DynamicClass) == DirectColor) {
649		visual->offsetRed = pScrn->offset.red;
650		visual->offsetGreen = pScrn->offset.green;
651		visual->offsetBlue = pScrn->offset.blue;
652		visual->redMask = pScrn->mask.red;
653		visual->greenMask = pScrn->mask.green;
654		visual->blueMask = pScrn->mask.blue;
655	    }
656	}
657    }
658
659    /* setup acceleration */
660    if (have_accel) {
661	XF86ModReqInfo req;
662	int errmaj, errmin;
663
664	memset(&req, 0, sizeof(XF86ModReqInfo));
665	req.majorversion = 2;
666	req.minorversion = 0;
667	if (!LoadSubModule(pScrn->module, "exa", NULL, NULL, NULL, &req,
668	    &errmaj, &errmin)) {
669		LoaderErrorMsg(NULL, "exa", errmaj, errmin);
670		return FALSE;
671	}
672	if (!CG14InitAccel(pScreen))
673	    have_accel = FALSE;
674    }
675
676
677    /* Initialise cursor functions */
678    miDCInitialize (pScreen, xf86GetPointerScreenFuncs());
679
680    /* check for hardware cursor support */
681    if (pCg14->HWCursor)
682	CG14SetupCursor(pScreen);
683
684    /* Initialise default colourmap */
685    if (!miCreateDefColormap(pScreen))
686	return FALSE;
687
688    pCg14->CloseScreen = pScreen->CloseScreen;
689    pScreen->CloseScreen = CG14CloseScreen;
690    pScreen->SaveScreen = CG14SaveScreen;
691
692    /* Report any unused options (only for the first generation) */
693    if (serverGeneration == 1) {
694	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
695    }
696
697    /* unblank the screen */
698    CG14SaveScreen(pScreen, SCREEN_SAVER_OFF);
699
700    /* Done */
701    return TRUE;
702}
703
704
705/* Usually mandatory */
706static Bool
707CG14SwitchMode(SWITCH_MODE_ARGS_DECL)
708{
709    xf86Msg(X_ERROR, "CG14SwitchMode\n");
710    return TRUE;
711}
712
713
714/*
715 * This function is used to initialize the Start Address - the first
716 * displayed location in the video memory.
717 */
718/* Usually mandatory */
719static void
720CG14AdjustFrame(ADJUST_FRAME_ARGS_DECL)
721{
722    /* we don't support virtual desktops */
723    return;
724}
725
726/*
727 * This is called when VT switching back to the X server.  Its job is
728 * to reinitialise the video mode.
729 */
730
731/* Mandatory */
732static Bool
733CG14EnterVT(VT_FUNC_ARGS_DECL)
734{
735    SCRN_INFO_PTR(arg);
736
737    CG14InitCplane24 (pScrn);
738    return TRUE;
739}
740
741
742/*
743 * This is called when VT switching away from the X server.
744 */
745
746/* Mandatory */
747static void
748CG14LeaveVT(VT_FUNC_ARGS_DECL)
749{
750    SCRN_INFO_PTR(arg);
751
752    CG14ExitCplane24 (pScrn);
753    return;
754}
755
756
757/*
758 * This is called at the end of each server generation.  It restores the
759 * original (text) mode.  It should really also unmap the video memory too.
760 */
761
762/* Mandatory */
763static Bool
764CG14CloseScreen(CLOSE_SCREEN_ARGS_DECL)
765{
766    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
767    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
768    PixmapPtr pPixmap;
769
770    if (pCg14->use_shadow) {
771
772	pPixmap = pScreen->GetScreenPixmap(pScreen);
773	shadowRemove(pScreen, pPixmap);
774	pCg14->use_shadow = FALSE;
775    }
776
777    pScrn->vtSema = FALSE;
778    CG14ExitCplane24 (pScrn);
779    xf86UnmapSbusMem(pCg14->psdp, pCg14->fb,
780		     (pCg14->psdp->width * pCg14->psdp->height * 4));
781    xf86UnmapSbusMem(pCg14->psdp, pCg14->x32,
782		     (pCg14->psdp->width * pCg14->psdp->height));
783    xf86UnmapSbusMem(pCg14->psdp, pCg14->xlut, 4096);
784    xf86UnmapSbusMem(pCg14->psdp, pCg14->curs, 4096);
785
786    pScreen->CloseScreen = pCg14->CloseScreen;
787    return (*pScreen->CloseScreen)(CLOSE_SCREEN_ARGS);
788}
789
790static void *
791CG14WindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
792		CARD32 *size, void *closure)
793{
794    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
795    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
796
797    *size = pCg14->width << 2;
798    return (CARD8 *)pCg14->fb + row * (pCg14->width << 2) + offset;
799}
800
801/* Free up any per-generation data structures */
802
803/* Optional */
804static void
805CG14FreeScreen(FREE_SCREEN_ARGS_DECL)
806{
807    SCRN_INFO_PTR(arg);
808    CG14FreeRec(pScrn);
809}
810
811
812/* Checks if a mode is suitable for the selected chipset. */
813
814/* Optional */
815static ModeStatus
816CG14ValidMode(SCRN_ARG_TYPE arg, DisplayModePtr mode, Bool verbose, int flags)
817{
818    if (mode->Flags & V_INTERLACE)
819	return(MODE_BAD);
820
821    return(MODE_OK);
822}
823
824/* Do screen blanking */
825
826/* Mandatory */
827static Bool
828CG14SaveScreen(ScreenPtr pScreen, int mode)
829{
830    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
831    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
832    int state;
833    switch(mode) {
834	case SCREEN_SAVER_ON:
835	case SCREEN_SAVER_CYCLE:
836		state = FBVIDEO_OFF;
837		ioctl(pCg14->psdp->fd, FBIOSVIDEO, &state);
838		break;
839	case SCREEN_SAVER_OFF:
840	case SCREEN_SAVER_FORCER:
841		state = FBVIDEO_ON;
842		ioctl(pCg14->psdp->fd, FBIOSVIDEO, &state);
843		break;
844	default:
845		return FALSE;
846    }
847    return TRUE;
848}
849
850/*
851 * This is the implementation of the Sync() function.
852 */
853void
854CG14Sync(ScrnInfoPtr pScrn)
855{
856    return;
857}
858
859/*
860 * This initializes the card for 24 bit mode.
861 */
862static void
863CG14InitCplane24(ScrnInfoPtr pScrn)
864{
865  Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
866  int size, bpp;
867
868  size = pScrn->virtualX * pScrn->virtualY;
869  bpp = 32;
870  ioctl (pCg14->psdp->fd, CG14_SET_PIXELMODE, &bpp);
871  memset (pCg14->fb, 0, size * 4);
872  memset (pCg14->x32, 0, size);
873  memset (pCg14->xlut, 0, 0x200);
874}
875
876/*
877 * This initializes the card for 8 bit mode.
878 */
879static void
880CG14ExitCplane24(ScrnInfoPtr pScrn)
881{
882  Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
883  int bpp = 8;
884
885  ioctl (pCg14->psdp->fd, CG14_SET_PIXELMODE, &bpp);
886}
887
888
889static Bool
890CG14DriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
891    pointer ptr)
892{
893	xorgHWFlags *flag;
894
895	switch (op) {
896	case GET_REQUIRED_HW_INTERFACES:
897		flag = (CARD32*)ptr;
898		(*flag) = HW_MMIO;
899		return TRUE;
900	default:
901		return FALSE;
902	}
903}
904