cg14_driver.c revision a61c6651 
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
371    /* Check that the returned depth is one we support */
372    switch (pScrn->depth) {
373	case 32:
374	case 24:
375	case 16:
376	case 8:
377	    /* OK */
378	    break;
379	default:
380	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
381		       "Given depth (%d) is not supported by this driver\n",
382		       pScrn->depth);
383	    return FALSE;
384    }
385
386    /* Collect all of the relevant option flags (fill in pScrn->options) */
387    xf86CollectOptions(pScrn, NULL);
388    /* Process the options */
389    if (!(pCg14->Options = malloc(sizeof(CG14Options))))
390	return FALSE;
391    memcpy(pCg14->Options, CG14Options, sizeof(CG14Options));
392    xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pCg14->Options);
393    pCg14->use_shadow = xf86ReturnOptValBool(pCg14->Options, OPTION_SHADOW_FB,
394        TRUE);
395    pCg14->use_accel = xf86ReturnOptValBool(pCg14->Options, OPTION_ACCEL,
396        TRUE);
397    pCg14->use_xrender = xf86ReturnOptValBool(pCg14->Options, OPTION_XRENDER,
398        FALSE);
399
400    if (pScrn->depth < 24) {
401	if (pCg14->use_xrender)
402	    xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Disabling xrender on depth < 24\n");
403	pCg14->use_xrender = FALSE;
404    }
405
406    /*
407     * This must happen after pScrn->display has been set because
408     * xf86SetWeight references it.
409     */
410    if (pScrn->depth > 16) {
411	rgb weight = {0, 0, 0};
412	rgb mask = {0xff, 0xff00, 0xff0000};
413
414	if (!xf86SetWeight(pScrn, weight, mask)) {
415	    return FALSE;
416	}
417    } else if (pScrn->depth > 8) {
418  	rgb zeroes = {0, 0, 0};
419
420	if (!xf86SetWeight(pScrn, zeroes, zeroes)) {
421	    return FALSE;
422	}
423    }
424    if (!xf86SetDefaultVisual(pScrn, -1))
425	return FALSE;
426    else if (pScrn->depth > 8) {
427	/* We don't currently support DirectColor */
428	if (pScrn->defaultVisual != TrueColor) {
429	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Given default visual"
430		       " (%s) is not supported\n",
431		       xf86GetVisualName(pScrn->defaultVisual));
432	    return FALSE;
433	}
434    }
435
436    /*
437     * The new cmap code requires this to be initialised.
438     */
439
440    {
441	Gamma zeros = {0.0, 0.0, 0.0};
442
443	if (!xf86SetGamma(pScrn, zeros)) {
444	    return FALSE;
445	}
446    }
447
448    if (xf86LoadSubModule(pScrn, "fb") == NULL) {
449	CG14FreeRec(pScrn);
450	return FALSE;
451    }
452
453    if (pCg14->use_shadow) {
454	xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Using shadow framebuffer\n");
455	if (xf86LoadSubModule(pScrn, "shadow") == NULL) {
456	    CG14FreeRec(pScrn);
457	    return FALSE;
458	}
459    }
460
461    from = X_DEFAULT;
462    pCg14->HWCursor = TRUE;
463    if (xf86GetOptValBool(pCg14->Options, OPTION_HW_CURSOR, &pCg14->HWCursor))
464	from = X_CONFIG;
465    if (xf86ReturnOptValBool(pCg14->Options, OPTION_SW_CURSOR, FALSE)) {
466	from = X_CONFIG;
467	pCg14->HWCursor = FALSE;
468    }
469    xf86DrvMsg(pScrn->scrnIndex, from, "Using %s cursor\n",
470		pCg14->HWCursor ? "HW" : "SW");
471
472    /*********************
473    set up clock and mode stuff
474    *********************/
475
476    pScrn->progClock = TRUE;
477
478    if(pScrn->display->virtualX || pScrn->display->virtualY) {
479	xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
480		   "CG14 does not support a virtual desktop\n");
481	pScrn->display->virtualX = 0;
482	pScrn->display->virtualY = 0;
483    }
484
485    xf86SbusUseBuiltinMode(pScrn, pCg14->psdp);
486    pScrn->currentMode = pScrn->modes;
487    pScrn->displayWidth = pScrn->virtualX;
488
489    /* Set display resolution */
490    xf86SetDpi(pScrn, 0, 0);
491
492    return TRUE;
493}
494
495static void
496CG14UpdatePacked(ScreenPtr pScreen, shadowBufPtr pBuf)
497{
498	shadowUpdatePacked(pScreen, pBuf);
499}
500
501static Bool
502CG14CreateScreenResources(ScreenPtr pScreen)
503{
504    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
505    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
506    PixmapPtr pPixmap;
507    Bool ret;
508
509    pScreen->CreateScreenResources = pCg14->CreateScreenResources;
510    ret = pScreen->CreateScreenResources(pScreen);
511    pScreen->CreateScreenResources = CG14CreateScreenResources;
512
513    if (!ret)
514	return FALSE;
515
516    pPixmap = pScreen->GetScreenPixmap(pScreen);
517
518    if (!shadowAdd(pScreen, pPixmap, CG14UpdatePacked,
519	CG14WindowLinear, 0, NULL)) {
520	return FALSE;
521    }
522    return TRUE;
523}
524
525
526static Bool
527CG14ShadowInit(ScreenPtr pScreen)
528{
529    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
530    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
531
532    if (!shadowSetup(pScreen)) {
533	return FALSE;
534    }
535
536    pCg14->CreateScreenResources = pScreen->CreateScreenResources;
537    pScreen->CreateScreenResources = CG14CreateScreenResources;
538
539    return TRUE;
540}
541/* Mandatory */
542
543/* This gets called at the start of each server generation */
544
545static Bool
546CG14ScreenInit(SCREEN_INIT_ARGS_DECL)
547{
548    ScrnInfoPtr pScrn;
549    Cg14Ptr pCg14;
550    VisualPtr visual;
551    int ret, have_accel = 0;
552
553    /*
554     * First get the ScrnInfoRec
555     */
556    pScrn = xf86ScreenToScrn(pScreen);
557
558    pCg14 = GET_CG14_FROM_SCRN(pScrn);
559
560    /* Map the CG14 memory */
561    pCg14->fb = xf86MapSbusMem (pCg14->psdp, CG14_DIRECT_VOFF, pCg14->memsize);
562    pCg14->x32 = xf86MapSbusMem (pCg14->psdp, CG14_X32_VOFF,
563				 (pCg14->psdp->width * pCg14->psdp->height));
564    pCg14->xlut = xf86MapSbusMem (pCg14->psdp, CG14_XLUT_VOFF, 4096);
565    pCg14->curs = xf86MapSbusMem (pCg14->psdp, CG14_CURSOR_VOFF, 4096);
566
567    pCg14->sxreg = xf86MapSbusMem (pCg14->psdp, CG14_SXREG_VOFF, 4096);
568    pCg14->sxio = xf86MapSbusMem (pCg14->psdp, CG14_SXIO_VOFF, 0x04000000);
569    have_accel = (pCg14->sxreg != NULL) && (pCg14->sxio != NULL);
570
571    if (have_accel) {
572    	xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
573    	  "found kernel support for SX acceleration\n");
574    }
575    have_accel = have_accel & pCg14->use_accel;
576    if (have_accel) {
577    	xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "using acceleration\n");
578    	if (pCg14->use_shadow)
579    	    xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "disabling shadow\n");
580    	pCg14->use_shadow = FALSE;
581    }
582
583    pCg14->width = pCg14->psdp->width;
584    pCg14->height = pCg14->psdp->height;
585
586    if (! pCg14->fb || !pCg14->x32 || !pCg14->xlut || !pCg14->curs) {
587    	xf86Msg(X_ERROR,
588	    "can't mmap something: fd %08x  x32 %08x xlut %08x cursor %08x\n",
589	    (uint32_t)pCg14->fb, (uint32_t)pCg14->x32, (uint32_t)pCg14->xlut,
590	    (uint32_t)pCg14->curs);
591	return FALSE;
592    }
593
594    /* Darken the screen for aesthetic reasons and set the viewport */
595    CG14SaveScreen(pScreen, SCREEN_SAVER_ON);
596
597    /*
598     * The next step is to setup the screen's visuals, and initialise the
599     * framebuffer code.  In cases where the framebuffer's default
600     * choices for things like visual layouts and bits per RGB are OK,
601     * this may be as simple as calling the framebuffer's ScreenInit()
602     * function.  If not, the visuals will need to be setup before calling
603     * a fb ScreenInit() function and fixed up after.
604     */
605
606    /*
607     * Reset visual list.
608     */
609    miClearVisualTypes();
610
611    /* Set the bits per RGB for 8bpp mode */
612    pScrn->rgbBits = 8;
613
614    /* Setup the visuals we support. */
615    if (!miSetVisualTypes(pScrn->depth, miGetDefaultVisualMask(pScrn->depth),
616			  pScrn->rgbBits, pScrn->defaultVisual))
617	return FALSE;
618
619    miSetPixmapDepths ();
620
621    if (pCg14->use_shadow) {
622	pCg14->shadow = malloc(pScrn->virtualX * pScrn->virtualY * 4);
623
624	if (!pCg14->shadow) {
625	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
626	        "Failed to allocate shadow framebuffer\n");
627	    return FALSE;
628	}
629    }
630
631    /*
632     * Call the framebuffer layer's ScreenInit function, and fill in other
633     * pScreen fields.
634     */
635
636    CG14InitCplane24(pScrn);
637
638    ret = fbScreenInit(pScreen, pCg14->use_shadow ? pCg14->shadow : pCg14->fb,
639    		       pScrn->virtualX,
640		       pScrn->virtualY, pScrn->xDpi, pScrn->yDpi,
641		       pScrn->virtualX, pScrn->bitsPerPixel);
642
643    if (!ret)
644	return FALSE;
645
646    /* must be after RGB ordering fixed */
647    fbPictureInit (pScreen, 0, 0);
648
649    if (pCg14->use_shadow && !CG14ShadowInit(pScreen)) {
650	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
651		    "shadow framebuffer initialization failed\n");
652	return FALSE;
653    }
654
655    xf86SetBackingStore(pScreen);
656    xf86SetSilkenMouse(pScreen);
657
658    xf86SetBlackWhitePixels(pScreen);
659
660    if (pScrn->bitsPerPixel > 8) {
661	/* Fixup RGB ordering */
662	visual = pScreen->visuals + pScreen->numVisuals;
663	while (--visual >= pScreen->visuals) {
664	    if ((visual->class | DynamicClass) == DirectColor) {
665		visual->offsetRed = pScrn->offset.red;
666		visual->offsetGreen = pScrn->offset.green;
667		visual->offsetBlue = pScrn->offset.blue;
668		visual->redMask = pScrn->mask.red;
669		visual->greenMask = pScrn->mask.green;
670		visual->blueMask = pScrn->mask.blue;
671	    }
672	}
673    }
674
675    /* setup acceleration */
676    if (have_accel) {
677	XF86ModReqInfo req;
678	int errmaj, errmin;
679
680	memset(&req, 0, sizeof(XF86ModReqInfo));
681	req.majorversion = 2;
682	req.minorversion = 0;
683	if (!LoadSubModule(pScrn->module, "exa", NULL, NULL, NULL, &req,
684	    &errmaj, &errmin)) {
685		LoaderErrorMsg(NULL, "exa", errmaj, errmin);
686		return FALSE;
687	}
688	if (!CG14InitAccel(pScreen))
689	    have_accel = FALSE;
690    }
691
692
693    /* Initialise cursor functions */
694    miDCInitialize (pScreen, xf86GetPointerScreenFuncs());
695
696    /* check for hardware cursor support */
697    if (pCg14->HWCursor)
698	CG14SetupCursor(pScreen);
699
700    /* Initialise default colourmap */
701    if (!miCreateDefColormap(pScreen))
702	return FALSE;
703
704    if(!xf86SbusHandleColormaps(pScreen, pCg14->psdp))
705	return FALSE;
706
707    pCg14->CloseScreen = pScreen->CloseScreen;
708    pScreen->CloseScreen = CG14CloseScreen;
709    pScreen->SaveScreen = CG14SaveScreen;
710
711    /* Report any unused options (only for the first generation) */
712    if (serverGeneration == 1) {
713	xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
714    }
715
716    /* unblank the screen */
717    CG14SaveScreen(pScreen, SCREEN_SAVER_OFF);
718
719    /* Done */
720    return TRUE;
721}
722
723
724/* Usually mandatory */
725static Bool
726CG14SwitchMode(SWITCH_MODE_ARGS_DECL)
727{
728    xf86Msg(X_ERROR, "CG14SwitchMode\n");
729    return TRUE;
730}
731
732
733/*
734 * This function is used to initialize the Start Address - the first
735 * displayed location in the video memory.
736 */
737/* Usually mandatory */
738static void
739CG14AdjustFrame(ADJUST_FRAME_ARGS_DECL)
740{
741    /* we don't support virtual desktops */
742    return;
743}
744
745/*
746 * This is called when VT switching back to the X server.  Its job is
747 * to reinitialise the video mode.
748 */
749
750/* Mandatory */
751static Bool
752CG14EnterVT(VT_FUNC_ARGS_DECL)
753{
754    SCRN_INFO_PTR(arg);
755
756    CG14InitCplane24 (pScrn);
757    return TRUE;
758}
759
760
761/*
762 * This is called when VT switching away from the X server.
763 */
764
765/* Mandatory */
766static void
767CG14LeaveVT(VT_FUNC_ARGS_DECL)
768{
769    SCRN_INFO_PTR(arg);
770
771    CG14ExitCplane24 (pScrn);
772    return;
773}
774
775
776/*
777 * This is called at the end of each server generation.  It restores the
778 * original (text) mode.  It should really also unmap the video memory too.
779 */
780
781/* Mandatory */
782static Bool
783CG14CloseScreen(CLOSE_SCREEN_ARGS_DECL)
784{
785    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
786    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
787    PixmapPtr pPixmap;
788
789    if (pCg14->use_shadow) {
790
791	pPixmap = pScreen->GetScreenPixmap(pScreen);
792	shadowRemove(pScreen, pPixmap);
793	pCg14->use_shadow = FALSE;
794    }
795
796    pScrn->vtSema = FALSE;
797    CG14ExitCplane24 (pScrn);
798    xf86UnmapSbusMem(pCg14->psdp, pCg14->fb, pCg14->memsize);
799    xf86UnmapSbusMem(pCg14->psdp, pCg14->x32,
800		     (pCg14->psdp->width * pCg14->psdp->height));
801    xf86UnmapSbusMem(pCg14->psdp, pCg14->xlut, 4096);
802    xf86UnmapSbusMem(pCg14->psdp, pCg14->curs, 4096);
803
804    pScreen->CloseScreen = pCg14->CloseScreen;
805    return (*pScreen->CloseScreen)(CLOSE_SCREEN_ARGS);
806}
807
808static void *
809CG14WindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
810		CARD32 *size, void *closure)
811{
812    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
813    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
814    int mul = (pScrn->bitsPerPixel >> 3);
815
816    *size = pCg14->width * mul;
817    return (CARD8 *)pCg14->fb + row * (pCg14->width * mul) + offset;
818}
819
820/* Free up any per-generation data structures */
821
822/* Optional */
823static void
824CG14FreeScreen(FREE_SCREEN_ARGS_DECL)
825{
826    SCRN_INFO_PTR(arg);
827    CG14FreeRec(pScrn);
828}
829
830
831/* Checks if a mode is suitable for the selected chipset. */
832
833/* Optional */
834static ModeStatus
835CG14ValidMode(SCRN_ARG_TYPE arg, DisplayModePtr mode, Bool verbose, int flags)
836{
837    if (mode->Flags & V_INTERLACE)
838	return(MODE_BAD);
839
840    return(MODE_OK);
841}
842
843/* Do screen blanking */
844
845/* Mandatory */
846static Bool
847CG14SaveScreen(ScreenPtr pScreen, int mode)
848{
849    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
850    Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
851    int state;
852    switch(mode) {
853	case SCREEN_SAVER_ON:
854	case SCREEN_SAVER_CYCLE:
855		state = FBVIDEO_OFF;
856		ioctl(pCg14->psdp->fd, FBIOSVIDEO, &state);
857		break;
858	case SCREEN_SAVER_OFF:
859	case SCREEN_SAVER_FORCER:
860		state = FBVIDEO_ON;
861		ioctl(pCg14->psdp->fd, FBIOSVIDEO, &state);
862		break;
863	default:
864		return FALSE;
865    }
866    return TRUE;
867}
868
869/*
870 * This is the implementation of the Sync() function.
871 */
872void
873CG14Sync(ScrnInfoPtr pScrn)
874{
875    return;
876}
877
878/*
879 * This initializes the card for 24 bit mode.
880 */
881static void
882CG14InitCplane24(ScrnInfoPtr pScrn)
883{
884  Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
885  int size, bpp = 0;
886
887  size = pScrn->virtualX * pScrn->virtualY;
888  switch (pScrn->bitsPerPixel) {
889  	case 8:
890  	case 16:
891  	    bpp = pScrn->bitsPerPixel;
892  	    break;
893  	case 24:
894  	case 32:
895  	    bpp = 32;
896  	default:
897  	    xf86Msg(X_ERROR, "Unsupported depth %d\n", pScrn->bitsPerPixel);
898  }
899  if (bpp == 0) return;
900  ioctl (pCg14->psdp->fd, CG14_SET_PIXELMODE, &bpp);
901  memset (pCg14->fb, 0, size * (bpp >> 3));
902  memset (pCg14->x32, 0, size);
903#ifndef __NetBSD__
904  memset (pCg14->xlut, 0, 0x200);
905#endif
906}
907
908/*
909 * This initializes the card for 8 bit mode.
910 */
911static void
912CG14ExitCplane24(ScrnInfoPtr pScrn)
913{
914  Cg14Ptr pCg14 = GET_CG14_FROM_SCRN(pScrn);
915  int bpp = 8;
916
917  ioctl (pCg14->psdp->fd, CG14_SET_PIXELMODE, &bpp);
918}
919
920
921static Bool
922CG14DriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
923    pointer ptr)
924{
925	xorgHWFlags *flag;
926
927	switch (op) {
928	case GET_REQUIRED_HW_INTERFACES:
929		flag = (CARD32*)ptr;
930		(*flag) = HW_MMIO;
931		return TRUE;
932	default:
933		return FALSE;
934	}
935}
936