igs_driver.c revision 3bb9f206 
1/* $OpenBSD: wsfb_driver.c,v 1.19 2003/04/27 16:42:32 matthieu Exp $ */
2/* $NetBSD: igs_driver.c,v 1.10 2013/11/05 11:26:43 macallan Exp $ */
3/*
4 * Copyright (c) 2001 Matthieu Herrb
5 *		 2009 Michael Lorenz
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 *    - Redistributions of source code must retain the above copyright
13 *      notice, this list of conditions and the following disclaimer.
14 *    - Redistributions in binary form must reproduce the above
15 *      copyright notice, this list of conditions and the following
16 *      disclaimer in the documentation and/or other materials provided
17 *      with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34/*
35 * Based on fbdev.c written by:
36 *
37 * Authors:  Alan Hourihane, <alanh@fairlite.demon.co.uk>
38 *	     Michel Dänzer, <michdaen@iiic.ethz.ch>
39 */
40
41 /*
42  * a driver for IGS CyberPro 2010 graphics controllers
43  * adapted from wsfb
44  */
45
46#ifdef HAVE_CONFIG_H
47#include "config.h"
48#endif
49
50#include <fcntl.h>
51#include <sys/types.h>
52#include <sys/time.h>
53#include <sys/ioctl.h>
54#include <unistd.h>
55#include <errno.h>
56#include <dev/wscons/wsconsio.h>
57
58/* all driver need this */
59#include "xf86.h"
60#include "xf86_OSproc.h"
61
62#include "mipointer.h"
63#include "mibstore.h"
64#include "micmap.h"
65#include "colormapst.h"
66#include "xf86cmap.h"
67#include "shadow.h"
68#include "dgaproc.h"
69
70/* Everything using inb/outb, etc needs "compiler.h" */
71#include "compiler.h"
72
73/* for visuals */
74#include "fb.h"
75
76#if GET_ABI_MAJOR(ABI_VIDEODRV_VERSION) < 7
77#include "xf86Resources.h"
78#include "xf86RAC.h"
79#endif
80
81#ifdef XvExtension
82#include "xf86xv.h"
83#endif
84
85#include "igs.h"
86
87#include <sys/mman.h>
88
89#if GET_ABI_MAJOR(ABI_VIDEODRV_VERSION) > 6
90#define xf86LoaderReqSymLists(...) do {} while (0)
91#define LoaderRefSymLists(...) do {} while (0)
92#define xf86LoaderReqSymbols(...) do {} while (0)
93#endif
94
95#define DEBUG 0
96
97#if DEBUG
98# define TRACE_ENTER(str)       ErrorF("igs: " str " %d\n",pScrn->scrnIndex)
99# define TRACE_EXIT(str)        ErrorF("igs: " str " done\n")
100# define TRACE(str)             ErrorF("igs trace: " str "\n")
101#else
102# define TRACE_ENTER(str)
103# define TRACE_EXIT(str)
104# define TRACE(str)
105#endif
106
107#define IGS_DEFAULT_DEV "/dev/ttyE0"
108
109/* Prototypes */
110#ifdef XFree86LOADER
111static pointer IgsSetup(pointer, pointer, int *, int *);
112#endif
113static Bool IgsGetRec(ScrnInfoPtr);
114static void IgsFreeRec(ScrnInfoPtr);
115static const OptionInfoRec * IgsAvailableOptions(int, int);
116static void IgsIdentify(int);
117static Bool IgsProbe(DriverPtr, int);
118static Bool IgsPreInit(ScrnInfoPtr, int);
119static Bool IgsScreenInit(int, ScreenPtr, int, char **);
120static Bool IgsCloseScreen(int, ScreenPtr);
121static void *IgsWindowLinear(ScreenPtr, CARD32, CARD32, int, CARD32 *,
122			      void *);
123static Bool IgsEnterVT(int, int);
124static void IgsLeaveVT(int, int);
125static Bool IgsSwitchMode(int, DisplayModePtr, int);
126static int IgsValidMode(int, DisplayModePtr, Bool, int);
127static void IgsLoadPalette(ScrnInfoPtr, int, int *, LOCO *, VisualPtr);
128static Bool IgsSaveScreen(ScreenPtr, int);
129static void IgsSave(ScrnInfoPtr);
130static void IgsRestore(ScrnInfoPtr);
131
132/* dga stuff */
133#ifdef XFreeXDGA
134static Bool IgsDGAOpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
135				   int *, int *, int *);
136static Bool IgsDGASetMode(ScrnInfoPtr, DGAModePtr);
137static void IgsDGASetViewport(ScrnInfoPtr, int, int, int);
138static Bool IgsDGAInit(ScrnInfoPtr, ScreenPtr);
139#endif
140static Bool IgsDriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
141				pointer ptr);
142
143/* helper functions */
144static pointer igs_mmap(size_t, off_t, int);
145
146/*
147 * This is intentionally screen-independent.  It indicates the binding
148 * choice made in the first PreInit.
149 */
150static int pix24bpp = 0;
151
152#define IGS_VERSION 		4000
153#define IGS_NAME		"igs"
154#define IGS_DRIVER_NAME	"igs"
155
156_X_EXPORT DriverRec IGS = {
157	IGS_VERSION,
158	IGS_DRIVER_NAME,
159	IgsIdentify,
160	IgsProbe,
161	IgsAvailableOptions,
162	NULL,
163	0,
164	IgsDriverFunc
165};
166
167/* Supported "chipsets" */
168static SymTabRec IgsChipsets[] = {
169	{ 0, "CyberPro 2010" },
170	{ -1, NULL }
171};
172
173/* Supported options */
174typedef enum {
175	OPTION_NOACCEL,
176	OPTION_HW_CURSOR,
177	OPTION_SW_CURSOR
178} IgsOpts;
179
180static const OptionInfoRec IgsOptions[] = {
181	{ OPTION_NOACCEL, "NoAccel", OPTV_BOOLEAN, {0}, FALSE},
182	{ -1, NULL, OPTV_NONE, {0}, FALSE}
183};
184
185/* Symbols needed from other modules */
186static const char *fbSymbols[] = {
187	"fbPictureInit",
188	"fbScreenInit",
189	NULL
190};
191static const char *shadowSymbols[] = {
192	"shadowAdd",
193	"shadowSetup",
194	"shadowUpdatePacked",
195	"shadowUpdatePackedWeak",
196	"shadowUpdateRotatePacked",
197	"shadowUpdateRotatePackedWeak",
198	NULL
199};
200
201static const char *ramdacSymbols[] = {
202	"xf86CreateCursorInfoRec",
203	"xf86DestroyCursorInfoRec",
204	"xf86InitCursor",
205	NULL
206};
207
208#ifdef XFree86LOADER
209static XF86ModuleVersionInfo IgsVersRec = {
210	"igs",
211	"The NetBSD Foundation",
212	MODINFOSTRING1,
213	MODINFOSTRING2,
214	XORG_VERSION_CURRENT,
215	PACKAGE_VERSION_MAJOR,
216	PACKAGE_VERSION_MINOR,
217	PACKAGE_VERSION_PATCHLEVEL,
218	ABI_CLASS_VIDEODRV,
219	ABI_VIDEODRV_VERSION,
220	NULL,
221	{0, 0, 0, 0}
222};
223
224_X_EXPORT XF86ModuleData igsModuleData = { &IgsVersRec, IgsSetup, NULL };
225
226static pointer
227IgsSetup(pointer module, pointer opts, int *errmaj, int *errmin)
228{
229	static Bool setupDone = FALSE;
230	const char *osname;
231
232	/* Check that we're being loaded on a OpenBSD or NetBSD system */
233	LoaderGetOS(&osname, NULL, NULL, NULL);
234	if (!osname || (strcmp(osname, "openbsd") != 0 &&
235	                strcmp(osname, "netbsd") != 0)) {
236		if (errmaj)
237			*errmaj = LDR_BADOS;
238		if (errmin)
239			*errmin = 0;
240		return NULL;
241	}
242	if (!setupDone) {
243		setupDone = TRUE;
244		xf86AddDriver(&IGS, module, HaveDriverFuncs);
245		LoaderRefSymLists(fbSymbols, shadowSymbols, ramdacSymbols,
246		    NULL);
247		return (pointer)1;
248	} else {
249		if (errmaj != NULL)
250			*errmaj = LDR_ONCEONLY;
251		return NULL;
252	}
253}
254#endif /* XFree86LOADER */
255
256static Bool
257IgsGetRec(ScrnInfoPtr pScrn)
258{
259
260	if (pScrn->driverPrivate != NULL)
261		return TRUE;
262
263	pScrn->driverPrivate = xnfcalloc(sizeof(IgsRec), 1);
264	return TRUE;
265}
266
267static void
268IgsFreeRec(ScrnInfoPtr pScrn)
269{
270
271	if (pScrn->driverPrivate == NULL)
272		return;
273	xfree(pScrn->driverPrivate);
274	pScrn->driverPrivate = NULL;
275}
276
277static const OptionInfoRec *
278IgsAvailableOptions(int chipid, int busid)
279{
280	return IgsOptions;
281}
282
283static void
284IgsIdentify(int flags)
285{
286	xf86PrintChipsets(IGS_NAME, "driver for IGS CyberPro 2010",
287			  IgsChipsets);
288}
289
290#define priv_open_device(n)	open(n,O_RDWR|O_NONBLOCK|O_EXCL)
291
292/* Open the framebuffer device */
293static int
294igs_open(char *dev)
295{
296	int fd = -1;
297
298	/* try argument from XF86Config first */
299	if (dev == NULL || ((fd = priv_open_device(dev)) == -1)) {
300		/* second: environment variable */
301		dev = getenv("XDEVICE");
302		if (dev == NULL || ((fd = priv_open_device(dev)) == -1)) {
303			/* last try: default device */
304			dev = IGS_DEFAULT_DEV;
305			if ((fd = priv_open_device(dev)) == -1) {
306				return -1;
307			}
308		}
309	}
310	return fd;
311}
312/* Map the framebuffer's memory */
313static pointer
314igs_mmap(size_t len, off_t off, int fd)
315{
316	int pagemask, mapsize;
317	caddr_t addr;
318	pointer mapaddr;
319
320	pagemask = getpagesize() - 1;
321	mapsize = ((int) len + pagemask) & ~pagemask;
322	addr = 0;
323
324	/*
325	 * try and make it private first, that way once we get it, an
326	 * interloper, e.g. another server, can't get this frame buffer,
327	 * and if another server already has it, this one won't.
328	 */
329	mapaddr = (pointer) mmap(addr, mapsize,
330				 PROT_READ | PROT_WRITE, MAP_SHARED,
331				 fd, off);
332	if (mapaddr == MAP_FAILED) {
333		mapaddr = NULL;
334	}
335#if DEBUG
336	ErrorF("mmap returns: addr %p len 0x%x\n", mapaddr, mapsize);
337#endif
338	return mapaddr;
339}
340
341static int
342igsFindIsaDevice(GDevPtr dev)
343{
344	int found = -1;
345	uint8_t id0, id1, rev;
346
347	/* read chip ID from extended VGA registers */
348	id0 = igs_ext_read(IGS_EXT_CHIP_ID0);
349	id1 = igs_ext_read(IGS_EXT_CHIP_ID1);
350	rev = igs_ext_read(IGS_EXT_CHIP_REV);
351	xf86Msg(X_ERROR, "%s: %x %x %x\n", __func__, id0, id1, rev);
352	if ((id0 == 0xa4) && (id1 == 8))
353		found = 0;
354	return found;
355}
356
357static Bool
358IgsProbe(DriverPtr drv, int flags)
359{
360    ScrnInfoPtr pScrn = NULL;
361    IgsPtr cPtr;
362    Bool foundScreen = FALSE;
363    int numDevSections, numUsed;
364    GDevPtr *devSections;
365    int *usedChips;
366    int i, chipset, entity;
367
368    /*
369     * Find the config file Device sections that match this
370     * driver, and return if there are none.
371     */
372    if ((numDevSections = xf86MatchDevice(IGS_DRIVER_NAME,
373					  &devSections)) <= 0) {
374	return FALSE;
375    }
376
377    /* Isa Bus */
378    if ((numDevSections =
379      xf86MatchDevice(IGS_DRIVER_NAME, &devSections)) > 0) {
380	for (i = 0; i < numDevSections; i++) {
381	    if ((chipset = igsFindIsaDevice(devSections[i])) > -1) {
382		if ( xf86DoConfigure && xf86DoConfigurePass1 ) {
383		    xf86AddBusDeviceToConfigure(IGS_DRIVER_NAME, BUS_ISA,
384			  NULL, chipset);
385		}
386		if (flags & PROBE_DETECT) {
387		    return TRUE;
388		}
389		if (!xf86CheckStrOption(devSections[i]->options, "BusID",
390		  "ISA")) {
391		    continue;
392		}
393
394		pScrn = NULL;
395		entity = xf86ClaimFbSlot(drv, 0, devSections[i], TRUE);
396	    	pScrn = xf86ConfigFbEntity(NULL, 0, entity, NULL, NULL,
397		  NULL, NULL);
398		pScrn->driverVersion = IGS_VERSION;
399		pScrn->driverName    = IGS_DRIVER_NAME;
400		pScrn->name          = IGS_NAME;
401		pScrn->Probe         = IgsProbe;
402		pScrn->PreInit       = IgsPreInit;
403		pScrn->ScreenInit    = IgsScreenInit;
404		pScrn->SwitchMode    = IgsSwitchMode;
405		pScrn->AdjustFrame   = NULL;
406		pScrn->EnterVT       = IgsEnterVT;
407		pScrn->LeaveVT       = IgsLeaveVT;
408		pScrn->ValidMode     = IgsValidMode;
409		if (!IgsGetRec(pScrn)) {
410		    return FALSE;
411		}
412		cPtr = IGSPTR(pScrn);
413		cPtr->Chipset = chipset;
414		cPtr->fb_paddr =
415		    ((uint32_t)igs_ext_read(IGS_EXT_LINA_HI)) << 24;
416		xf86Msg(X_ERROR, "Aperture at %08x\n", cPtr->fb_paddr);
417	    }
418	}
419    }
420
421    xfree(devSections);
422    return foundScreen;
423}
424
425static Bool
426IgsPreInit(ScrnInfoPtr pScrn, int flags)
427{
428	IgsPtr fPtr;
429	int default_depth, vram_size = 2 * 1024 * 1024;
430	char *dev, *s;
431	char *mod = NULL;
432	const char *reqSym = NULL;
433	Gamma zeros = {0.0, 0.0, 0.0};
434	DisplayModePtr mode;
435	MessageType from;
436
437	if (flags & PROBE_DETECT) return FALSE;
438
439	TRACE_ENTER("PreInit");
440
441	if (pScrn->numEntities != 1) return FALSE;
442
443	pScrn->monitor = pScrn->confScreen->monitor;
444
445	IgsGetRec(pScrn);
446	fPtr = IGSPTR(pScrn);
447
448	fPtr->pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
449
450#if GET_ABI_MAJOR(ABI_VIDEODRV_VERSION) < 6
451	pScrn->racMemFlags = RAC_FB | RAC_COLORMAP | RAC_CURSOR | RAC_VIEWPORT;
452	pScrn->racIoFlags = pScrn->racMemFlags;
453#endif
454
455	dev = xf86FindOptionValue(fPtr->pEnt->device->options, "device");
456	fPtr->fd = igs_open(dev);
457	if (fPtr->fd == -1) {
458		return FALSE;
459	}
460
461	if (ioctl(fPtr->fd, WSDISPLAYIO_GINFO, &fPtr->info) == -1) {
462		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
463			   "ioctl WSDISPLAY_GINFO: %s\n",
464			   strerror(errno));
465		return FALSE;
466	}
467
468	/* Handle depth */
469	default_depth = fPtr->info.depth <= 24 ? fPtr->info.depth : 24;
470	if (!xf86SetDepthBpp(pScrn, default_depth, default_depth,
471		fPtr->info.depth,
472		fPtr->info.depth >= 24 ? Support24bppFb|Support32bppFb : 0))
473		return FALSE;
474
475	/* Check consistency */
476	if (pScrn->bitsPerPixel != fPtr->info.depth) {
477		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
478		    "specified depth (%d) or bpp (%d) doesn't match "
479		    "framebuffer depth (%d)\n", pScrn->depth,
480		    pScrn->bitsPerPixel, fPtr->info.depth);
481		return FALSE;
482	}
483	xf86PrintDepthBpp(pScrn);
484
485	/* Get the depth24 pixmap format */
486	if (pScrn->depth == 24 && pix24bpp == 0)
487		pix24bpp = xf86GetBppFromDepth(pScrn, 24);
488
489	/* color weight */
490	if (pScrn->depth > 8) {
491		rgb zeros = { 0, 0, 0 }, masks;
492
493		masks.red = 0;
494		masks.green = 0;
495		masks.blue = 0;
496
497		if (!xf86SetWeight(pScrn, zeros, masks))
498			return FALSE;
499	}
500
501	/* visual init */
502	if (!xf86SetDefaultVisual(pScrn, -1))
503		return FALSE;
504
505	/* We don't currently support DirectColor at > 8bpp */
506	if (pScrn->depth > 8 && pScrn->defaultVisual != TrueColor) {
507		xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Given default visual"
508			   " (%s) is not supported at depth %d\n",
509			   xf86GetVisualName(pScrn->defaultVisual),
510			   pScrn->depth);
511		return FALSE;
512	}
513
514	xf86SetGamma(pScrn,zeros);
515
516	pScrn->progClock = TRUE;
517	pScrn->rgbBits   = 8;
518	pScrn->chipset   = "igs";
519	pScrn->videoRam  = vram_size;
520
521	xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Vidmem: %dk\n",
522		   pScrn->videoRam/1024);
523
524	/* handle options */
525	xf86CollectOptions(pScrn, NULL);
526	if (!(fPtr->Options = xalloc(sizeof(IgsOptions))))
527		return FALSE;
528	memcpy(fPtr->Options, IgsOptions, sizeof(IgsOptions));
529	xf86ProcessOptions(pScrn->scrnIndex, fPtr->pEnt->device->options,
530			   fPtr->Options);
531
532	/* fake video mode struct */
533	mode = (DisplayModePtr)xalloc(sizeof(DisplayModeRec));
534	mode->prev = mode;
535	mode->next = mode;
536	mode->name = "igs current mode";
537	mode->status = MODE_OK;
538	mode->type = M_T_BUILTIN;
539	mode->Clock = 0;
540	mode->HDisplay = fPtr->info.width;
541	mode->HSyncStart = 0;
542	mode->HSyncEnd = 0;
543	mode->HTotal = 0;
544	mode->HSkew = 0;
545	mode->VDisplay = fPtr->info.height;
546	mode->VSyncStart = 0;
547	mode->VSyncEnd = 0;
548	mode->VTotal = 0;
549	mode->VScan = 0;
550	mode->Flags = 0;
551	if (pScrn->modes != NULL) {
552		xf86DrvMsg(pScrn->scrnIndex, X_INFO,
553		   "Ignoring mode specification from screen section\n");
554	}
555	pScrn->currentMode = pScrn->modes = mode;
556	pScrn->virtualX = fPtr->info.width;
557	pScrn->virtualY = fPtr->info.height;
558	pScrn->displayWidth = pScrn->virtualX;
559
560	/* Set the display resolution */
561	xf86SetDpi(pScrn, 0, 0);
562
563	from = X_DEFAULT;
564	fPtr->HWCursor = TRUE;
565	if (xf86GetOptValBool(fPtr->Options, OPTION_HW_CURSOR, &fPtr->HWCursor))
566		from = X_CONFIG;
567	if (xf86ReturnOptValBool(fPtr->Options, OPTION_SW_CURSOR, FALSE)) {
568		from = X_CONFIG;
569		fPtr->HWCursor = FALSE;
570	}
571	xf86DrvMsg(pScrn->scrnIndex, from, "Using %s cursor\n",
572		fPtr->HWCursor ? "HW" : "SW");
573
574	if (xf86GetOptValBool(fPtr->Options, OPTION_NOACCEL, &fPtr->no_accel))
575		from = X_CONFIG;
576
577	xf86DrvMsg(pScrn->scrnIndex, from, "%s acceleration\n",
578		fPtr->no_accel ? "disabling" : "enabling");
579
580	/* Load bpp-specific modules */
581	switch(pScrn->bitsPerPixel) {
582	default:
583		mod = "fb";
584		break;
585	}
586
587	if (mod && xf86LoadSubModule(pScrn, mod) == NULL) {
588		IgsFreeRec(pScrn);
589		return FALSE;
590	}
591
592	if (xf86LoadSubModule(pScrn, "ramdac") == NULL) {
593		IgsFreeRec(pScrn);
594		return FALSE;
595        }
596
597	if (mod) {
598		if (reqSym) {
599			xf86LoaderReqSymbols(reqSym, NULL);
600		} else {
601			xf86LoaderReqSymLists(fbSymbols, NULL);
602		}
603	}
604	TRACE_EXIT("PreInit");
605	return TRUE;
606}
607
608static Bool
609IgsCreateScreenResources(ScreenPtr pScreen)
610{
611	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
612	IgsPtr fPtr = IGSPTR(pScrn);
613	PixmapPtr pPixmap;
614	Bool ret;
615
616	pScreen->CreateScreenResources = fPtr->CreateScreenResources;
617	ret = pScreen->CreateScreenResources(pScreen);
618	pScreen->CreateScreenResources = IgsCreateScreenResources;
619
620	if (!ret)
621		return FALSE;
622
623	pPixmap = pScreen->GetScreenPixmap(pScreen);
624
625	if (!shadowAdd(pScreen, pPixmap, shadowUpdatePackedWeak(),
626		IgsWindowLinear, FALSE, NULL)) {
627		return FALSE;
628	}
629	return TRUE;
630}
631
632
633static Bool
634IgsShadowInit(ScreenPtr pScreen)
635{
636	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
637	IgsPtr fPtr = IGSPTR(pScrn);
638
639	if (!shadowSetup(pScreen))
640		return FALSE;
641	fPtr->CreateScreenResources = pScreen->CreateScreenResources;
642	pScreen->CreateScreenResources = IgsCreateScreenResources;
643
644	return TRUE;
645}
646
647static Bool
648IgsScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
649{
650	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
651	IgsPtr fPtr = IGSPTR(pScrn);
652	VisualPtr visual;
653	int ret, flags, ncolors;
654	int wsmode = WSDISPLAYIO_MODE_MAPPED;
655	size_t len;
656
657	TRACE_ENTER("IgsScreenInit");
658#if DEBUG
659	ErrorF("\tbitsPerPixel=%d, depth=%d, defaultVisual=%s\n"
660	       "\tmask: %x,%x,%x, offset: %u,%u,%u\n",
661	       pScrn->bitsPerPixel,
662	       pScrn->depth,
663	       xf86GetVisualName(pScrn->defaultVisual),
664	       pScrn->mask.red,pScrn->mask.green,pScrn->mask.blue,
665	       pScrn->offset.red,pScrn->offset.green,pScrn->offset.blue);
666#endif
667	fPtr->linebytes = fPtr->info.width * (fPtr->info.depth >> 3);
668
669	/* Switch to graphics mode - required before mmap */
670	if (ioctl(fPtr->fd, WSDISPLAYIO_SMODE, &wsmode) == -1) {
671		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
672			   "ioctl WSDISPLAYIO_SMODE: %s\n",
673			   strerror(errno));
674		return FALSE;
675	}
676
677	/* find our aperture */
678
679	/* assume 2MB for now, until I add actual RAM size probing */
680	len = 2 * 1024 * 1024;
681	fPtr->fbmem = igs_mmap(len, fPtr->fb_paddr, fPtr->fd);
682
683	if (fPtr->fbmem == NULL) {
684		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
685			   "igs_mmap(fb): %s\n", strerror(errno));
686		return FALSE;
687	}
688	fPtr->fbmem_len = len - 1024; /* leave room for the hw cursor */
689
690	fPtr->reg = igs_mmap(4096,
691	    fPtr->fb_paddr + IGS_MEM_MMIO_SELECT + IGS_COP_BASE_B, fPtr->fd);
692	if (fPtr->reg == NULL) {
693		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
694			   "igs_mmap(registers): %s\n", strerror(errno));
695		return FALSE;
696	}
697	xf86Msg(X_ERROR, "0x10: %08x\n", *(uint32_t *)(fPtr->reg + 0x10));
698
699	IgsSave(pScrn);
700	pScrn->vtSema = TRUE;
701
702	/* mi layer */
703	miClearVisualTypes();
704	if (pScrn->bitsPerPixel > 8) {
705		if (!miSetVisualTypes(pScrn->depth, TrueColorMask,
706				      pScrn->rgbBits, TrueColor))
707			return FALSE;
708	} else {
709		if (!miSetVisualTypes(pScrn->depth,
710				      miGetDefaultVisualMask(pScrn->depth),
711				      pScrn->rgbBits, pScrn->defaultVisual))
712			return FALSE;
713	}
714	if (!miSetPixmapDepths())
715		return FALSE;
716
717	fPtr->fbstart = fPtr->fbmem;
718
719	switch (pScrn->bitsPerPixel) {
720	case 8:
721	case 16:
722	case 24:
723	case 32:
724		ret = fbScreenInit(pScreen,
725		    fPtr->fbstart,
726		    pScrn->virtualX, pScrn->virtualY,
727		    pScrn->xDpi, pScrn->yDpi,
728		    pScrn->displayWidth, pScrn->bitsPerPixel);
729		break;
730	default:
731		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
732			   "Unsupported bpp: %d", pScrn->bitsPerPixel);
733		return FALSE;
734	} /* case */
735
736	if (!ret)
737		return FALSE;
738
739	if (pScrn->bitsPerPixel > 8) {
740		/* Fixup RGB ordering */
741		visual = pScreen->visuals + pScreen->numVisuals;
742		while (--visual >= pScreen->visuals) {
743			if ((visual->class | DynamicClass) == DirectColor) {
744				visual->offsetRed   = pScrn->offset.red;
745				visual->offsetGreen = pScrn->offset.green;
746				visual->offsetBlue  = pScrn->offset.blue;
747				visual->redMask     = pScrn->mask.red;
748				visual->greenMask   = pScrn->mask.green;
749				visual->blueMask    = pScrn->mask.blue;
750			}
751		}
752	}
753
754	if (pScrn->bitsPerPixel >= 8) {
755		if (!fbPictureInit(pScreen, NULL, 0))
756			xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
757				   "RENDER extension initialisation failed.");
758	}
759
760#ifdef XFreeXDGA
761	IgsDGAInit(pScrn, pScreen);
762#endif
763
764	xf86SetBlackWhitePixels(pScreen);
765	miInitializeBackingStore(pScreen);
766	xf86SetBackingStore(pScreen);
767
768	/* setup acceleration */
769	if (!fPtr->no_accel) {
770		XF86ModReqInfo req;
771		int errmaj, errmin;
772
773		memset(&req, 0, sizeof(XF86ModReqInfo));
774		req.majorversion = 2;
775		req.minorversion = 0;
776		if (!LoadSubModule(pScrn->module, "exa", NULL, NULL, NULL, &req,
777		    &errmaj, &errmin)) {
778			LoaderErrorMsg(NULL, "exa", errmaj, errmin);
779			return FALSE;
780		}
781		if (!IgsInitAccel(pScreen))
782			fPtr->no_accel = 1;
783	}
784
785	/* software cursor */
786	miDCInitialize(pScreen, xf86GetPointerScreenFuncs());
787
788	/* check for hardware cursor support */
789	if (fPtr->HWCursor)
790		IgsSetupCursor(pScreen);
791
792	/* colormap */
793	if (!miCreateDefColormap(pScreen))
794		return FALSE;
795	flags = CMAP_RELOAD_ON_MODE_SWITCH;
796	ncolors = fPtr->info.cmsize;
797	/* on StaticGray visuals, fake a 256 entries colormap */
798	if (ncolors == 0)
799		ncolors = 256;
800	if(!xf86HandleColormaps(pScreen, ncolors, 8, IgsLoadPalette,
801				NULL, flags))
802		return FALSE;
803
804	pScreen->SaveScreen = IgsSaveScreen;
805
806#ifdef XvExtension
807	{
808		XF86VideoAdaptorPtr *ptr;
809
810		int n = xf86XVListGenericAdaptors(pScrn,&ptr);
811		if (n) {
812			xf86XVScreenInit(pScreen,ptr,n);
813		}
814	}
815#endif
816
817	/* Wrap the current CloseScreen function */
818	fPtr->CloseScreen = pScreen->CloseScreen;
819	pScreen->CloseScreen = IgsCloseScreen;
820
821	TRACE_EXIT("IgsScreenInit");
822	return TRUE;
823}
824
825static Bool
826IgsCloseScreen(int scrnIndex, ScreenPtr pScreen)
827{
828	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
829	IgsPtr fPtr = IGSPTR(pScrn);
830
831	TRACE_ENTER("IgsCloseScreen");
832
833	if (pScrn->vtSema) {
834		IgsRestore(pScrn);
835		if (munmap(fPtr->fbmem, fPtr->fbmem_len) == -1) {
836			xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
837				   "munmap: %s\n", strerror(errno));
838		}
839
840		fPtr->fbmem = NULL;
841	}
842#ifdef XFreeXDGA
843	if (fPtr->pDGAMode) {
844		xfree(fPtr->pDGAMode);
845		fPtr->pDGAMode = NULL;
846		fPtr->nDGAMode = 0;
847	}
848#endif
849	pScrn->vtSema = FALSE;
850
851	/* unwrap CloseScreen */
852	pScreen->CloseScreen = fPtr->CloseScreen;
853	return (*pScreen->CloseScreen)(scrnIndex, pScreen);
854}
855
856static void *
857IgsWindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode,
858		CARD32 *size, void *closure)
859{
860	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
861	IgsPtr fPtr = IGSPTR(pScrn);
862
863	if (fPtr->linebytes)
864		*size = fPtr->linebytes;
865	else {
866		if (ioctl(fPtr->fd, WSDISPLAYIO_LINEBYTES, size) == -1)
867			return NULL;
868		fPtr->linebytes = *size;
869	}
870	return ((CARD8 *)fPtr->fbmem + row *fPtr->linebytes + offset);
871}
872
873static Bool
874IgsEnterVT(int scrnIndex, int flags)
875{
876	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
877
878	TRACE_ENTER("EnterVT");
879	pScrn->vtSema = TRUE;
880	return TRUE;
881}
882
883static void
884IgsLeaveVT(int scrnIndex, int flags)
885{
886#if DEBUG
887	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
888#endif
889
890	TRACE_ENTER("LeaveVT");
891}
892
893static Bool
894IgsSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
895{
896#if DEBUG
897	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
898#endif
899
900	TRACE_ENTER("SwitchMode");
901	/* Nothing else to do */
902	return TRUE;
903}
904
905static int
906IgsValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
907{
908#if DEBUG
909	ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
910#endif
911
912	TRACE_ENTER("ValidMode");
913	return MODE_OK;
914}
915
916static void
917IgsLoadPalette(ScrnInfoPtr pScrn, int numColors, int *indices,
918	       LOCO *colors, VisualPtr pVisual)
919{
920	IgsPtr fPtr = IGSPTR(pScrn);
921	struct wsdisplay_cmap cmap;
922	unsigned char red[256],green[256],blue[256];
923	int i, indexMin=256, indexMax=0;
924
925	TRACE_ENTER("LoadPalette");
926
927	cmap.count   = 1;
928	cmap.red   = red;
929	cmap.green = green;
930	cmap.blue  = blue;
931
932	if (numColors == 1) {
933		/* Optimisation */
934		cmap.index = indices[0];
935		red[0]   = colors[indices[0]].red;
936		green[0] = colors[indices[0]].green;
937		blue[0]  = colors[indices[0]].blue;
938		if (ioctl(fPtr->fd,WSDISPLAYIO_PUTCMAP, &cmap) == -1)
939			ErrorF("ioctl FBIOPUTCMAP: %s\n", strerror(errno));
940	} else {
941		/* Change all colors in 2 syscalls */
942		/* and limit the data to be transfered */
943		for (i = 0; i < numColors; i++) {
944			if (indices[i] < indexMin)
945				indexMin = indices[i];
946			if (indices[i] > indexMax)
947				indexMax = indices[i];
948		}
949		cmap.index = indexMin;
950		cmap.count = indexMax - indexMin + 1;
951		cmap.red = &red[indexMin];
952		cmap.green = &green[indexMin];
953		cmap.blue = &blue[indexMin];
954		/* Get current map */
955		if (ioctl(fPtr->fd, WSDISPLAYIO_GETCMAP, &cmap) == -1)
956			ErrorF("ioctl FBIOGETCMAP: %s\n", strerror(errno));
957		/* Change the colors that require updating */
958		for (i = 0; i < numColors; i++) {
959			red[indices[i]]   = colors[indices[i]].red;
960			green[indices[i]] = colors[indices[i]].green;
961			blue[indices[i]]  = colors[indices[i]].blue;
962		}
963		/* Write the colormap back */
964		if (ioctl(fPtr->fd,WSDISPLAYIO_PUTCMAP, &cmap) == -1)
965			ErrorF("ioctl FBIOPUTCMAP: %s\n", strerror(errno));
966	}
967	TRACE_EXIT("LoadPalette");
968}
969
970static Bool
971IgsSaveScreen(ScreenPtr pScreen, int mode)
972{
973	ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
974	IgsPtr fPtr = IGSPTR(pScrn);
975	int state;
976
977	TRACE_ENTER("SaveScreen");
978
979	if (!pScrn->vtSema)
980		return TRUE;
981
982	if (mode != SCREEN_SAVER_FORCER) {
983		state = xf86IsUnblank(mode)?WSDISPLAYIO_VIDEO_ON:
984		                            WSDISPLAYIO_VIDEO_OFF;
985		ioctl(fPtr->fd,
986		      WSDISPLAYIO_SVIDEO, &state);
987	}
988	return TRUE;
989}
990
991
992static void
993IgsSave(ScrnInfoPtr pScrn)
994{
995	IgsPtr fPtr = IGSPTR(pScrn);
996
997	TRACE_ENTER("IgsSave");
998
999	if (fPtr->info.cmsize == 0)
1000		return;
1001
1002}
1003
1004static void
1005IgsRestore(ScrnInfoPtr pScrn)
1006{
1007	IgsPtr fPtr = IGSPTR(pScrn);
1008	int mode;
1009
1010	TRACE_ENTER("IgsRestore");
1011
1012	/* Clear the screen */
1013	memset(fPtr->fbmem, 0, fPtr->fbmem_len);
1014
1015	/* Restore the text mode */
1016	mode = WSDISPLAYIO_MODE_EMUL;
1017	if (ioctl(fPtr->fd, WSDISPLAYIO_SMODE, &mode) == -1) {
1018		xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
1019			   "error setting text mode %s\n", strerror(errno));
1020	}
1021	TRACE_EXIT("IgsRestore");
1022}
1023
1024#ifdef XFreeXDGA
1025/***********************************************************************
1026 * DGA stuff
1027 ***********************************************************************/
1028
1029static Bool
1030IgsDGAOpenFramebuffer(ScrnInfoPtr pScrn, char **DeviceName,
1031		       unsigned char **ApertureBase, int *ApertureSize,
1032		       int *ApertureOffset, int *flags)
1033{
1034	*DeviceName = NULL;		/* No special device */
1035	*ApertureBase = (unsigned char *)(pScrn->memPhysBase);
1036	*ApertureSize = pScrn->videoRam;
1037	*ApertureOffset = pScrn->fbOffset;
1038	*flags = 0;
1039
1040	return TRUE;
1041}
1042
1043static Bool
1044IgsDGASetMode(ScrnInfoPtr pScrn, DGAModePtr pDGAMode)
1045{
1046	DisplayModePtr pMode;
1047	int scrnIdx = pScrn->pScreen->myNum;
1048	int frameX0, frameY0;
1049
1050	if (pDGAMode) {
1051		pMode = pDGAMode->mode;
1052		frameX0 = frameY0 = 0;
1053	} else {
1054		if (!(pMode = pScrn->currentMode))
1055			return TRUE;
1056
1057		frameX0 = pScrn->frameX0;
1058		frameY0 = pScrn->frameY0;
1059	}
1060
1061	if (!(*pScrn->SwitchMode)(scrnIdx, pMode, 0))
1062		return FALSE;
1063	(*pScrn->AdjustFrame)(scrnIdx, frameX0, frameY0, 0);
1064
1065	return TRUE;
1066}
1067
1068static void
1069IgsDGASetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
1070{
1071	(*pScrn->AdjustFrame)(pScrn->pScreen->myNum, x, y, flags);
1072}
1073
1074static int
1075IgsDGAGetViewport(ScrnInfoPtr pScrn)
1076{
1077	return (0);
1078}
1079
1080static DGAFunctionRec IgsDGAFunctions =
1081{
1082	IgsDGAOpenFramebuffer,
1083	NULL,       /* CloseFramebuffer */
1084	IgsDGASetMode,
1085	IgsDGASetViewport,
1086	IgsDGAGetViewport,
1087	NULL,       /* Sync */
1088	NULL,       /* FillRect */
1089	NULL,       /* BlitRect */
1090	NULL,       /* BlitTransRect */
1091};
1092
1093static void
1094IgsDGAAddModes(ScrnInfoPtr pScrn)
1095{
1096	IgsPtr fPtr = IGSPTR(pScrn);
1097	DisplayModePtr pMode = pScrn->modes;
1098	DGAModePtr pDGAMode;
1099
1100	do {
1101		pDGAMode = xrealloc(fPtr->pDGAMode,
1102				    (fPtr->nDGAMode + 1) * sizeof(DGAModeRec));
1103		if (!pDGAMode)
1104			break;
1105
1106		fPtr->pDGAMode = pDGAMode;
1107		pDGAMode += fPtr->nDGAMode;
1108		(void)memset(pDGAMode, 0, sizeof(DGAModeRec));
1109
1110		++fPtr->nDGAMode;
1111		pDGAMode->mode = pMode;
1112		pDGAMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE;
1113		pDGAMode->byteOrder = pScrn->imageByteOrder;
1114		pDGAMode->depth = pScrn->depth;
1115		pDGAMode->bitsPerPixel = pScrn->bitsPerPixel;
1116		pDGAMode->red_mask = pScrn->mask.red;
1117		pDGAMode->green_mask = pScrn->mask.green;
1118		pDGAMode->blue_mask = pScrn->mask.blue;
1119		pDGAMode->visualClass = pScrn->bitsPerPixel > 8 ?
1120			TrueColor : PseudoColor;
1121		pDGAMode->xViewportStep = 1;
1122		pDGAMode->yViewportStep = 1;
1123		pDGAMode->viewportWidth = pMode->HDisplay;
1124		pDGAMode->viewportHeight = pMode->VDisplay;
1125
1126		if (fPtr->linebytes)
1127			pDGAMode->bytesPerScanline = fPtr->linebytes;
1128		else {
1129			ioctl(fPtr->fd, WSDISPLAYIO_LINEBYTES,
1130			      &fPtr->linebytes);
1131			pDGAMode->bytesPerScanline = fPtr->linebytes;
1132		}
1133
1134		pDGAMode->imageWidth = pMode->HDisplay;
1135		pDGAMode->imageHeight =  pMode->VDisplay;
1136		pDGAMode->pixmapWidth = pDGAMode->imageWidth;
1137		pDGAMode->pixmapHeight = pDGAMode->imageHeight;
1138		pDGAMode->maxViewportX = pScrn->virtualX -
1139			pDGAMode->viewportWidth;
1140		pDGAMode->maxViewportY = pScrn->virtualY -
1141			pDGAMode->viewportHeight;
1142
1143		pDGAMode->address = fPtr->fbstart;
1144
1145		pMode = pMode->next;
1146	} while (pMode != pScrn->modes);
1147}
1148
1149static Bool
1150IgsDGAInit(ScrnInfoPtr pScrn, ScreenPtr pScreen)
1151{
1152	IgsPtr fPtr = IGSPTR(pScrn);
1153
1154	if (pScrn->depth < 8)
1155		return FALSE;
1156
1157	if (!fPtr->nDGAMode)
1158		IgsDGAAddModes(pScrn);
1159
1160	return (DGAInit(pScreen, &IgsDGAFunctions,
1161			fPtr->pDGAMode, fPtr->nDGAMode));
1162}
1163#endif
1164
1165static Bool
1166IgsDriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
1167    pointer ptr)
1168{
1169	xorgHWFlags *flag;
1170
1171	switch (op) {
1172	case GET_REQUIRED_HW_INTERFACES:
1173		flag = (CARD32*)ptr;
1174		(*flag) = HW_IO | HW_MMIO;
1175		return TRUE;
1176	default:
1177		return FALSE;
1178	}
1179}
1180
1181