mga_merge.c revision 6f68ce78 
1#ifdef HAVE_CONFIG_H
2#include "config.h"
3#endif
4
5/* All drivers should typically include these */
6#include "xf86.h"
7#include "xf86_OSproc.h"
8
9/* All drivers need this */
10
11#include "compiler.h"
12
13#include "mga.h"
14#include "mga_macros.h"
15#include "mga_reg.h"
16#include "mga_merge.h"
17
18#include "fbdevhw.h"
19
20static int
21StrToRanges(range* r, const char* s) {
22    float num=0.0;
23    int rangenum=0;
24    Bool gotdash = FALSE;
25    Bool nextdash = FALSE;
26    const char* strnum=NULL;
27    do {
28        switch(*s) {
29            case '0': case '1': case '2': case '3': case '4': case '5':
30            case '6': case '7': case '8': case '9': case '.':
31                if(strnum == NULL) {
32                    strnum = s;
33                    gotdash = nextdash;
34                    nextdash = FALSE;
35                 }
36
37                break;
38            case '-':
39            case ' ': case 0:
40                if(strnum == NULL) break; /*is extra seperator */
41                if(strnum != NULL) sscanf(strnum,"%f",&num);
42                if(gotdash) /*if wasn't singlet: correct. */
43                    r[rangenum-1].hi = num;
44                else { /*first, assume singlet */
45                    r[rangenum].lo = num;
46                    r[rangenum].hi = num;
47                    rangenum++;
48                }
49                strnum = NULL;
50                if(*s == '-')
51                    nextdash = (rangenum != 0); /*ignore dash if before any number.*/
52                break;
53            default :
54                return 0;
55        }
56    } while(*(s++) != 0); /* run loop for every char including null terminator.*/
57
58    return rangenum;
59}
60
61
62/* Copys mode i, links the result to dest, and returns it.
63 * Links i and j in Private record.
64 * if dest is NULL, return value is copy of i linked to itself.
65 */
66static DisplayModePtr
67CopyModeNLink(ScrnInfoPtr pScrn, DisplayModePtr dest, DisplayModePtr i, DisplayModePtr j, MgaScrn2Rel srel) {
68    DisplayModePtr mode;
69    int dx = 0,dy = 0;
70    /* start with first node */
71    mode = malloc(sizeof(DisplayModeRec));
72    memcpy(mode,i, sizeof(DisplayModeRec));
73    mode->Private = malloc(sizeof(MergedDisplayModeRec));
74    ((MergedDisplayModePtr)mode->Private)->Monitor1 = i;
75    ((MergedDisplayModePtr)mode->Private)->Monitor2 = j;
76    ((MergedDisplayModePtr)mode->Private)->Monitor2Pos = srel;
77    mode->PrivSize = 0;
78
79        switch(srel) {
80            case mgaLeftOf:
81            case mgaRightOf:
82                dx = min(pScrn->virtualX,i->HDisplay + j->HDisplay) -  mode->HDisplay;
83                dy = min(pScrn->virtualY,  max(i->VDisplay,j->VDisplay)) - mode->VDisplay;
84                break;
85            case mgaAbove:
86            case mgaBelow:
87                dy = min(pScrn->virtualY,i->VDisplay + j->VDisplay) - mode->VDisplay;
88                dx = min(pScrn->virtualX, max(i->HDisplay,j->HDisplay)) - mode->HDisplay;
89                break;
90            case mgaClone:
91                dx = min(pScrn->virtualX, max(i->HDisplay,j->HDisplay)) - mode->HDisplay;
92                dy = min(pScrn->virtualY, max(i->VDisplay,j->VDisplay)) - mode->VDisplay;
93                break;
94        }
95    mode->HDisplay += dx;
96    mode->HSyncStart += dx;
97    mode->HSyncEnd += dx;
98    mode->HTotal += dx;
99    mode->VDisplay += dy;
100    mode->VSyncStart += dy;
101    mode->VSyncEnd += dy;
102    mode->VTotal += dy;
103    mode->Clock = 0; /* Shows we're in Merge mode. */
104
105    mode->next = mode;
106    mode->prev = mode;
107
108    if(dest) {
109        /* Insert node after "dest" */
110        mode->next = dest->next;
111        dest->next->prev = mode;
112        mode->prev = dest;
113        dest->next = mode;
114    }
115
116    return mode;
117}
118
119static DisplayModePtr
120GetModeFromName(const char* str, DisplayModePtr i)
121{
122    DisplayModePtr c = i;
123    if(!i) return NULL;
124    do {
125        if(strcmp(str,c->name) == 0) return c;
126        c = c->next;
127    } while(c != i);
128    return NULL;
129}
130
131/* takes a config file string of MetaModes and generates a MetaModeList */
132static DisplayModePtr
133GenerateModeList(ScrnInfoPtr pScrn, const char* str,
134		 DisplayModePtr i, DisplayModePtr j, MgaScrn2Rel srel) {
135    const char* strmode = str;
136    char modename[256];
137    Bool gotdash = FALSE;
138    MgaScrn2Rel sr;
139
140    DisplayModePtr mode1 = NULL;
141    DisplayModePtr mode2 = NULL;
142    DisplayModePtr result = NULL;
143    do {
144        switch(*str) {
145            case 0:
146            case '-':
147            case ' ':
148	    case ',':
149	    case ';':
150                if((strmode != str)) {/*we got a mode */
151                    /* read new entry */
152                    strncpy(modename,strmode,str - strmode);
153                    modename[str - strmode] = 0;
154
155                    if(gotdash) {
156                        if(mode1 == NULL) return NULL;
157                        mode2 = GetModeFromName(modename,j);
158                        if(!mode2) {
159                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
160                                "Mode: \"%s\" is not a supported mode for monitor 2\n",modename);
161                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
162                                "Skipping metamode \"%s-%s\".\n",mode1->name,modename);
163                            mode1 = NULL;
164                        }
165                    } else {
166                        mode1 = GetModeFromName(modename,i);
167                        if(!mode1) {
168                            const char* tmps = str;
169                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
170                                "Mode: \"%s\" is not a supported mode for monitor 1\n",modename);
171                            /* find if a monitor2 mode follows */
172                            gotdash = FALSE;
173                            while(*tmps == ' ' || *tmps == ';') tmps++;
174                            if(*tmps == '-' || *tmps == ',') { /* skip the next mode */
175                                tmps++;
176                                while(*tmps == ' ' || *tmps == ';') tmps++; /*skip spaces */
177                                while(*tmps && *tmps != ' ' && *tmps != ';' && *tmps != '-' && *tmps != ',') tmps++; /*skip modename */
178                                /* for error message */
179                                strncpy(modename,strmode,tmps - strmode);
180                                modename[tmps - strmode] = 0;
181                                str = tmps-1;
182                            }
183                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
184                                "Skipping metamode \"%s\".\n",modename);
185                            mode1 = NULL;
186                        }
187                    }
188                    gotdash = FALSE;
189                }
190                strmode = str+1; /* number starts on next char */
191                gotdash |= (*str == '-' || *str == ',');
192
193                if(*str != 0) break; /* if end of string, we wont get a chance to catch a char and run the
194                                        default case. do it now */
195
196            default:
197                if(!gotdash && mode1) { /* complete previous pair */
198                    sr = srel;
199                    if(!mode2) {
200                        mode2 = GetModeFromName(mode1->name,j);
201                        sr = mgaClone;
202                    }
203                    if(!mode2) {
204                        xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
205                            "Mode: \"%s\" is not a supported mode for monitor 2\n",mode1->name);
206                        xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
207                            "Skipping clone mode \"%s\".\n", mode1->name);
208                        mode1 = NULL;
209                    } else {
210                        result = CopyModeNLink(pScrn,result,mode1,mode2,sr);
211                        mode1 = NULL;
212                        mode2 = NULL;
213                    }
214                }
215                break;
216
217        }
218    } while(*(str++) != 0);
219    return result;
220}
221
222
223/* second CRTC init funcitons. Used to check monitor timings and refreshes.
224 * this function looses lots of maintainability points due to redundancy,
225 * but it still was the cleanest and least-intrusive way I found. */
226
227Bool
228MGAPreInitMergedFB(ScrnInfoPtr pScrn1, int flags)
229{
230    ScrnInfoPtr pScrn;
231    MGAPtr pMga;
232    MGAPtr pMga1;
233    MessageType from;
234    int i;
235    const char* s;
236    ClockRangePtr clockRanges;
237    MgaScrn2Rel Monitor2Pos;
238
239    xf86DrvMsg(pScrn1->scrnIndex, X_INFO, "==== Start of second screen initialization ====\n");
240    pScrn = malloc(sizeof(ScrnInfoRec));
241    memcpy(pScrn,pScrn1,sizeof(ScrnInfoRec));
242
243    pScrn->driverPrivate = NULL;
244    /* Allocate the MGARec driverPrivate */
245    if (!MGAGetRec(pScrn)) {
246	return FALSE;
247    }
248
249    pMga = MGAPTR(pScrn);
250    pMga1 = MGAPTR(pScrn1);
251    pMga1->pScrn2 = pScrn;
252
253    /* Get the entity, and make sure it is PCI. */
254    pMga->pEnt = pMga1->pEnt;
255
256    /* Set pMga->device to the relevant Device section */
257    pMga->device = pMga1->device;
258
259    if (flags & PROBE_DETECT) {
260	MGAProbeDDC(pScrn, pMga->pEnt->index); /*FIXME make shure this probes second monitor */
261	return TRUE;
262    }
263
264#ifndef XSERVER_LIBPCIACCESS
265    pMga->PciTag = pMga1->PciTag;
266#endif
267    pMga->Primary = pMga1->Primary;
268
269    /* Set pScrn->monitor */
270    {
271        pScrn->monitor = malloc(sizeof(MonRec));
272        /* copy everything we don't care about */
273        memcpy(pScrn->monitor,pScrn1->monitor,sizeof(MonRec));
274        pScrn->monitor->DDC = NULL;   /*FIXME:have to try this */
275        if ((s = xf86GetOptValString(pMga1->Options, OPTION_HSYNC2))) {
276            pScrn->monitor->nHsync = StrToRanges(pScrn->monitor->hsync,s);
277        }
278        if ((s = xf86GetOptValString(pMga1->Options, OPTION_VREFRESH2))) {
279            pScrn->monitor->nVrefresh = StrToRanges(pScrn->monitor->vrefresh,s);
280        }
281
282
283
284   }
285
286    pMga->SecondCrtc = TRUE;
287    pMga->HWCursor = FALSE;
288    pScrn->AdjustFrame = MGAAdjustMergeFrames;
289    pScrn1->AdjustFrame = MGAAdjustMergeFrames;
290
291/*    if (!xf86SetDepthBpp(pScrn, 0, 0, 0, flags24))   FIXME:have to copy result form scrn1
292  if (!xf86SetWeight(pScrn, zeros, zeros)) {
293*/
294
295    /* We use a programamble clock */
296    pScrn->progClock = TRUE;
297
298    /* Collect all of the relevant option flags (fill in pScrn->options) */
299    pScrn->options = pScrn1->options;
300
301/*   xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pMga->Options);*/
302    pMga->Options = pMga1->Options;
303
304
305    /* Set the bits per RGB for 8bpp mode */
306    if (pScrn->depth == 8)
307	pScrn->rgbBits = 8;
308
309    /*
310     * Set the Chipset and ChipRev, allowing config file entries to
311     * override.
312     */
313    pScrn->chipset = pScrn1->chipset;
314    pMga->Chipset = pMga1->Chipset;
315    pMga->ChipRev = pMga1->ChipRev;
316
317#ifdef MGADRI
318    pMga->agpMode = pMga1->agpMode;
319#endif
320
321    pMga->NoAccel = pMga1->NoAccel;
322    pMga->UsePCIRetry = pMga1->UsePCIRetry;
323    pMga->SyncOnGreen = pMga1->SyncOnGreen;
324    pMga->ShowCache = pMga1->ShowCache;
325    pMga->HasSDRAM = pMga1->HasSDRAM;
326    pMga->MemClk = pMga1->MemClk;
327    pMga->colorKey = pMga1->colorKey;
328    pScrn->colorKey = pScrn1->colorKey;
329    pScrn->overlayFlags = pScrn1->overlayFlags;
330    pMga->videoKey = pMga1->videoKey;
331    /* unsupported options */
332    pMga->HWCursor = FALSE;
333    pMga->ShadowFB = FALSE;
334    pMga->FBDev = FALSE;
335
336    pMga->OverclockMem = pMga1->OverclockMem;
337    pMga->TexturedVideo = pMga1->TexturedVideo;
338    pMga->MergedFB = TRUE;
339
340    pMga->Rotate = 0;
341
342    switch (pMga->Chipset) {
343    case PCI_CHIP_MGA2064:
344    case PCI_CHIP_MGA2164:
345    case PCI_CHIP_MGA2164_AGP:
346	MGA2064SetupFuncs(pScrn);
347	break;
348    case PCI_CHIP_MGA1064:
349    case PCI_CHIP_MGAG100:
350    case PCI_CHIP_MGAG100_PCI:
351    case PCI_CHIP_MGAG200:
352    case PCI_CHIP_MGAG200_PCI:
353    case PCI_CHIP_MGAG200_SE_A_PCI:
354    case PCI_CHIP_MGAG200_SE_B_PCI:
355    case PCI_CHIP_MGAG200_WINBOND_PCI:
356    case PCI_CHIP_MGAG200_EW3_PCI:
357    case PCI_CHIP_MGAG200_EV_PCI:
358    case PCI_CHIP_MGAG200_EH_PCI:
359    case PCI_CHIP_MGAG200_ER_PCI:
360    case PCI_CHIP_MGAG400:
361    case PCI_CHIP_MGAG550:
362	MGAGSetupFuncs(pScrn);
363	break;
364    }
365
366    pMga->FbAddress = pMga1->FbAddress;
367    pMga->PciInfo = pMga1->PciInfo;
368#ifndef XSERVER_LIBPCIACCESS
369    pMga->IOAddress = pMga1->IOAddress;
370    pMga->ILOADAddress = pMga1->ILOADAddress;
371    pMga->BiosFrom = pMga1->BiosFrom;
372    pMga->BiosAddress = pMga1->BiosAddress;
373#endif
374
375    /*
376     * Read the BIOS data struct
377     */
378
379    mga_read_and_process_bios( pScrn );
380
381    /* HW bpp matches reported bpp */
382    pMga->HwBpp = pMga1->HwBpp;
383
384    /*
385     * Reset card if it isn't primary one
386     */
387    if ( (!pMga->Primary && !pMga->FBDev) )
388        MGASoftReset(pScrn);
389
390
391    pScrn->videoRam = pScrn1->videoRam;
392    pMga->FbMapSize = pMga1->FbMapSize;
393    pMga->SrcOrg = pMga1->SrcOrg;
394    pMga->DstOrg = pMga1->DstOrg;
395
396   /* Set the bpp shift value */
397    pMga->BppShifts[0] = 0;
398    pMga->BppShifts[1] = 1;
399    pMga->BppShifts[2] = 0;
400    pMga->BppShifts[3] = 2;
401
402    /*
403     * fill MGAdac struct
404     * Warning: currently, it should be after RAM counting
405     */
406    (*pMga->PreInit)(pScrn);
407
408#if !defined(__powerpc__)
409
410    /* Read and print the Monitor DDC info */
411/*    pScrn->monitor->DDC = MGAdoDDC(pScrn);*/ /*FIXME: have to try this*/
412#endif /* !__powerpc__ */
413
414    /*
415     * If the driver can do gamma correction, it should call xf86SetGamma()
416     * here.
417     */
418    {
419	Gamma zeros = {0.0, 0.0, 0.0};
420
421	if (!xf86SetGamma(pScrn, zeros)) {
422	    return FALSE;
423	}
424    }
425
426
427    /* Set the min pixel clock */
428    pMga->MinClock = pMga1->MinClock;	/* XXX Guess, need to check this */
429    xf86DrvMsg(pScrn->scrnIndex, X_DEFAULT, "CRTC2: Min pixel clock is %d MHz\n",
430	       pMga->MinClock / 1000);
431   /* Override on 2nd crtc */
432
433    if (pMga->ChipRev >= 0x80 || (pMga->Chipset == PCI_CHIP_MGAG550)) {
434	/* G450, G550 */
435        pMga->MaxClock = 234000;
436    } else {
437        pMga->MaxClock = 135000;
438    }
439    xf86DrvMsg(pScrn->scrnIndex, X_DEFAULT, "CRTC2: Max pixel clock is %d MHz\n",
440	       pMga->MaxClock / 1000);
441    /*
442     * Setup the ClockRanges, which describe what clock ranges are available,
443     * and what sort of modes they can be used for.
444     */
445    clockRanges = xnfcalloc(sizeof(ClockRange), 1);
446    clockRanges->next = NULL;
447    clockRanges->minClock = pMga->MinClock;
448    clockRanges->maxClock = pMga->MaxClock;
449    clockRanges->clockIndex = -1;		/* programmable */
450    clockRanges->interlaceAllowed = TRUE;
451    clockRanges->doubleScanAllowed = TRUE;
452    clockRanges->interlaceAllowed = FALSE; /*no interlace on CRTC2 */
453
454    clockRanges->ClockMulFactor = 1;
455    clockRanges->ClockDivFactor = 1;
456    /* Only set MemClk if appropriate for the ramdac */
457    if (pMga->Dac.SetMemClk) {
458	if (pMga->MemClk == 0) {
459	    pMga->MemClk = pMga->Dac.MemoryClock;
460	    from = pMga->Dac.MemClkFrom;
461	} else
462	    from = X_CONFIG;
463	xf86DrvMsg(pScrn->scrnIndex, from, "CRTC2: MCLK used is %.1f MHz\n",
464		   pMga->MemClk / 1000.0);
465    }
466
467    /*
468     * xf86ValidateModes will check that the mode HTotal and VTotal values
469     * don't exceed the chipset's limit if pScrn->maxHValue and
470     * pScrn->maxVValue are set.  Since our MGAValidMode() already takes
471     * care of this, we don't worry about setting them here.
472     */
473    {
474	int Pitches1[] =
475	  {640, 768, 800, 960, 1024, 1152, 1280, 1600, 1920, 2048, 0};
476	int Pitches2[] =
477	  {512, 640, 768, 800, 832, 960, 1024, 1152, 1280, 1600, 1664,
478		1920, 2048, 0};
479	int *linePitches = NULL;
480	int minPitch = 256;
481	int maxPitch = 2048;
482
483        switch(pMga->Chipset) {
484	case PCI_CHIP_MGA2064:
485	   if (!pMga->NoAccel) {
486		linePitches = malloc(sizeof(Pitches1));
487		memcpy(linePitches, Pitches1, sizeof(Pitches1));
488		minPitch = maxPitch = 0;
489	   }
490	   break;
491	case PCI_CHIP_MGA2164:
492	case PCI_CHIP_MGA2164_AGP:
493	case PCI_CHIP_MGA1064:
494	   if (!pMga->NoAccel) {
495		linePitches = malloc(sizeof(Pitches2));
496		memcpy(linePitches, Pitches2, sizeof(Pitches2));
497		minPitch = maxPitch = 0;
498	   }
499	   break;
500	case PCI_CHIP_MGAG100:
501	case PCI_CHIP_MGAG100_PCI:
502	   maxPitch = 2048;
503	   break;
504	case PCI_CHIP_MGAG200:
505	case PCI_CHIP_MGAG200_PCI:
506	case PCI_CHIP_MGAG200_SE_A_PCI:
507	case PCI_CHIP_MGAG200_SE_B_PCI:
508        case PCI_CHIP_MGAG200_WINBOND_PCI:
509	case PCI_CHIP_MGAG200_EW3_PCI:
510        case PCI_CHIP_MGAG200_EV_PCI:
511        case PCI_CHIP_MGAG200_EH_PCI:
512	case PCI_CHIP_MGAG200_ER_PCI:
513	case PCI_CHIP_MGAG400:
514	case PCI_CHIP_MGAG550:
515	   maxPitch = 4096;
516	   break;
517	}
518
519        pScrn->modePool=NULL;
520        pScrn->modes = NULL;
521	i = xf86ValidateModes(pScrn, pScrn->monitor->Modes,
522			      pScrn->display->modes, clockRanges,
523			      linePitches, minPitch, maxPitch,
524			      pMga->Roundings[(pScrn->bitsPerPixel >> 3) - 1] *
525					pScrn->bitsPerPixel, 128, 2048,
526			      pScrn->display->virtualX,
527			      pScrn->display->virtualY,
528			      pMga->FbMapSize,
529			      LOOKUP_BEST_REFRESH);
530
531	free(linePitches);
532    }
533
534
535    if (i < 1 && pMga->FBDev) {
536	fbdevHWUseBuildinMode(pScrn);
537	pScrn->displayWidth = pScrn->virtualX; /* FIXME: might be wrong */
538	i = 1;
539    }
540    if (i == -1) {
541	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "CRTC2: Validate Modes Failed\n");
542	MGAFreeRec(pScrn);
543	return FALSE;
544    }
545
546    /* Prune the modes marked as invalid */
547    xf86PruneDriverModes(pScrn);
548
549    if (i == 0 || pScrn->modes == NULL) {
550	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "CRTC2: No valid modes found\n");
551	MGAFreeRec(pScrn);
552	return FALSE;
553    }
554
555    /*
556     * Set the CRTC parameters for all of the modes based on the type
557     * of mode, and the chipset's interlace requirements.
558     *
559     * Calling this is required if the mode->Crtc* values are used by the
560     * driver and if the driver doesn't provide code to set them.  They
561     * are not pre-initialised at all.
562     */
563    MGA_NOT_HAL(xf86SetCrtcForModes(pScrn, INTERLACE_HALVE_V));
564
565    /* Set the current mode to the first in the list */
566    pScrn->currentMode = pScrn->modes;
567
568    /* Print the list of modes being used */
569    xf86PrintModes(pScrn);
570
571    /* Set display resolution */
572    xf86SetDpi(pScrn, 0, 0);
573
574    /*
575     * Compute the byte offset into the linear frame buffer where the
576     * frame buffer data should actually begin.  According to DDK misc.c
577     * line 1023, if more than 4MB is to be displayed, YDSTORG must be set
578     * appropriately to align memory bank switching, and this requires a
579     * corresponding offset on linear frame buffer access.
580     * This is only needed for WRAM.
581     */
582
583    pMga->YDstOrg = pMga1->YDstOrg;
584    xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 2, "CRTC2: YDstOrg is set to %d\n",
585		   pMga->YDstOrg);
586    pMga->FbUsableSize = pMga1->FbUsableSize;
587    pMga->FbCursorOffset = pMga1->FbCursorOffset;
588
589    pMga->CurrentLayout.bitsPerPixel = pScrn->bitsPerPixel;
590    pMga->CurrentLayout.depth = pScrn->depth;
591    pMga->CurrentLayout.displayWidth = pScrn->displayWidth;
592    pMga->CurrentLayout.weight.red = pScrn->weight.red;
593    pMga->CurrentLayout.weight.green = pScrn->weight.green;
594    pMga->CurrentLayout.weight.blue = pScrn->weight.blue;
595    pMga->CurrentLayout.mode = pScrn->currentMode;
596
597
598    Monitor2Pos = mgaRightOf;
599    if ((s = xf86GetOptValString(pMga1->Options, OPTION_MONITOR2POS))) {
600        switch(s[0]) {
601            case 'L': case 'l': case 'G': case 'g':
602                Monitor2Pos = mgaLeftOf;
603                break;
604            case 'R': case 'r': case 'D': case 'd':
605                Monitor2Pos = mgaRightOf;
606                break;
607
608            case 'A': case 'a': case 'H': case 'h':
609                Monitor2Pos = mgaAbove;
610                break;
611
612            case 'B': case 'b':
613                Monitor2Pos = mgaBelow;
614                break;
615
616            case 'C': case 'c':
617                Monitor2Pos = mgaClone;
618                break;
619            default:
620                Monitor2Pos = mgaRightOf;
621                break;
622        }
623    }
624
625    /* Fool xf86 into thinking we have huge modes */
626    /* Keep the original values somewhere */
627    pMga1->M1modes = pScrn1->modes;
628    pMga1->M1currentMode = pScrn1->currentMode;
629    /* make a copy of the mode list, so we can modify it. */
630    if ((s = xf86GetOptValString(pMga1->Options, OPTION_METAMODES))) {
631        pScrn1->modes = GenerateModeList(pScrn,s,pMga1->M1modes,pScrn->modes,Monitor2Pos); /*FIXME: free this list*/
632        if(!pScrn1->modes) {
633	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Parse Error reading MetaModes, or No modes left.\n");
634            return FALSE;
635        }
636
637        pScrn1->modes = pScrn1->modes->next;
638        pScrn1->currentMode = pScrn1->modes;
639    } else {
640        xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "MetaModes option missing.\n");
641        return FALSE;
642    }
643    xf86DrvMsg(pScrn1->scrnIndex, X_INFO, "==== End of second screen initialization ====\n");
644    return TRUE;
645}
646
647void
648MGADisplayPowerManagementSetMerged(ScrnInfoPtr pScrn, int PowerManagementMode,
649				  int flags)
650{
651    MGADisplayPowerManagementSet(pScrn,PowerManagementMode,flags);
652    MGADisplayPowerManagementSetCrtc2(pScrn,PowerManagementMode,flags);
653}
654
655typedef struct _region {
656    int x0,x1,y0,y1;
657    } region;
658
659static Bool
660InRegion(int x, int y, region r) {
661    return (r.x0 <= x) && (x < r.x1) && (r.y0 <= y) && (y < r.y1);
662}
663
664
665#define BOUND(test,low,hi) { \
666    if(test < low) test = low; \
667    if(test > hi) test = hi; }
668#define REBOUND(low,hi,test) { \
669    if(test < low) { \
670        hi += test-low; \
671        low = test; } \
672    if(test > hi) { \
673        low += test-hi; \
674        hi = test; } }
675 void
676MGAMergePointerMoved(SCRN_ARG_TYPE arg, int x, int y)
677{
678  SCRN_INFO_PTR(arg);
679  MGAPtr        pMga = MGAPTR(pScrn);
680  ScrnInfoPtr   pScr2 = pMga->pScrn2;
681
682  region out,in1,in2,f2,f1;
683
684  int deltax,deltay;
685
686  /* for ease. */
687  f1.x0 = pMga->M1frameX0;
688  f1.x1 = pMga->M1frameX1+1;
689  f1.y0 = pMga->M1frameY0;
690  f1.y1 = pMga->M1frameY1+1;
691  f2.x0 = pScr2->frameX0;
692  f2.x1 = pScr2->frameX1+1;
693  f2.y0 = pScr2->frameY0;
694  f2.y1 = pScr2->frameY1+1;
695
696
697  /*specify outer clipping region. crossing this causes all frames to move*/
698  out.x0 = pScrn->frameX0;
699  out.x1 = pScrn->frameX1+1;
700  out.y0 = pScrn->frameY0;
701  out.y1 = pScrn->frameY1+1;
702
703  /*
704   * specify inner sliding window. beeing outsize both frames, and inside
705   * the outer cliping window, causes corresponding frame to slide
706   */
707  in1 = out;
708  in2 = out;
709  switch(((MergedDisplayModePtr)pScrn->currentMode->Private)->Monitor2Pos) {
710      case mgaLeftOf :
711          in1.x0 = f1.x0;
712          in2.x1 = f2.x1;
713          break;
714      case mgaRightOf :
715          in1.x1 = f1.x1;
716          in2.x0 = f2.x0;
717          break;
718      case mgaBelow :
719          in1.y1 = f1.y1;
720          in2.y0 = f2.y0;
721          break;
722      case mgaAbove :
723          in1.y0 = f1.y0;
724          in2.y1 = f2.y1;
725          break;
726      case mgaClone :
727          break;
728      }
729
730
731    deltay = 0;
732    deltax = 0;
733
734    if(InRegion(x,y,out)) {
735        if( InRegion(x,y, in1) && !InRegion(x,y, f1) ) {
736            REBOUND(f1.x0,f1.x1,x);
737            REBOUND(f1.y0,f1.y1,y);
738            deltax = 1; /*force frame update */
739        }
740        if( InRegion(x,y, in2) && !InRegion(x,y, f2) ) {
741            REBOUND(f2.x0,f2.x1,x);
742            REBOUND(f2.y0,f2.y1,y);
743            deltax = 1; /*force frame update */
744        }
745    }
746    else {  /*outside outer clipping region*/
747        if ( out.x0 > x) {
748            deltax = x - out.x0;
749        }
750        if ( out.x1 < x) {
751            deltax = x - out.x1;
752        }
753        f1.x0 += deltax;
754        f1.x1 += deltax;
755        f2.x0 += deltax;
756        f2.x1 += deltax;
757        pScrn->frameX0 += deltax;
758        pScrn->frameX1 += deltax;
759
760
761        if ( out.y0 > y) {
762            deltay = y - out.y0;
763        }
764        if ( out.y1 < y) {
765            deltay = y - out.y1;
766        }
767        f1.y0 += deltay;
768        f1.y1 += deltay;
769        f2.y0 += deltay;
770        f2.y1 += deltay;
771        pScrn->frameY0 += deltay;
772        pScrn->frameY1 += deltay;
773    }
774
775
776    if (deltax != 0 || deltay != 0) {
777        /* back to reality. */
778        pMga->M1frameX0 = f1.x0;
779        pMga->M1frameY0 = f1.y0;
780        pScr2->frameX0 = f2.x0;
781        pScr2->frameY0 = f2.y0;
782
783        /*Adjust Granularity */
784        MGAAdjustGranularity(pScrn,&pMga->M1frameX0,&pMga->M1frameY0);
785        MGAAdjustGranularity(pScrn,&pScr2->frameX0,&pScr2->frameY0);
786        MGAAdjustGranularity(pScrn,&pScrn->frameX0,&pScrn->frameY0);
787
788        pMga->M1frameX1 = pMga->M1frameX0 + MDMPTR(pScrn)->Monitor1->HDisplay -1;
789        pMga->M1frameY1 = pMga->M1frameY0 + MDMPTR(pScrn)->Monitor1->VDisplay -1;
790        pScr2->frameX1 = pScr2->frameX0 + MDMPTR(pScrn)->Monitor2->HDisplay -1;
791        pScr2->frameY1 = pScr2->frameY0 + MDMPTR(pScrn)->Monitor2->VDisplay -1;
792        pScrn->frameX1 = pScrn->frameX0 + pScrn->currentMode->HDisplay -1;
793        pScrn->frameY1 = pScrn->frameY0 + pScrn->currentMode->VDisplay -1;
794
795        MGAAdjustFrame(ADJUST_FRAME_ARGS(pScrn, pMga->M1frameX0, pMga->M1frameY0));
796        MGAAdjustFrameCrtc2(ADJUST_FRAME_ARGS(pScrn, pScr2->frameX0, pScr2->frameY0));
797    }
798
799/*  if(pMga->PointerMoved)
800      (*pMga->PointerMoved)(scrnIndex, x, y);  FIXME: do I need to call old func?*/
801
802}
803
804
805void
806MGAAdjustMergeFrames(ADJUST_FRAME_ARGS_DECL) {
807    SCRN_INFO_PTR(arg);
808    ScrnInfoPtr pScrn1 = pScrn;
809    MGAPtr pMga = MGAPTR(pScrn1);
810    ScrnInfoPtr pScrn2 = pMga->pScrn2;
811    int VTotal = pScrn1->currentMode->VDisplay;
812    int HTotal = pScrn1->currentMode->HDisplay;
813    int VMax = VTotal;
814    int HMax = HTotal;
815
816    BOUND(x,0,pScrn1->virtualX-HTotal);
817    BOUND(y,0,pScrn1->virtualY-VTotal);
818    switch(MDMPTR(pScrn1)->Monitor2Pos) {
819        case mgaLeftOf:
820            pScrn2->frameX0 = x;
821            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
822            pMga->M1frameX0 = x+MDMPTR(pScrn1)->Monitor2->HDisplay;
823            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
824            break;
825        case mgaRightOf:
826            pMga->M1frameX0 = x;
827            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
828            pScrn2->frameX0 = x+MDMPTR(pScrn1)->Monitor1->HDisplay;
829            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
830            break;
831        case mgaAbove:
832            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
833            pScrn2->frameY0 = y;
834            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
835            pMga->M1frameY0 = y+MDMPTR(pScrn1)->Monitor2->VDisplay;
836            break;
837        case mgaBelow:
838            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
839            pMga->M1frameY0 = y;
840            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
841            pScrn2->frameY0 = y+MDMPTR(pScrn1)->Monitor1->VDisplay;
842            break;
843        case mgaClone:
844            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
845            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
846            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
847            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
848            break;
849    }
850    /* sanity checks. Make shure were not out of bounds */
851    BOUND(pMga->M1frameX0,0,pScrn1->virtualX -MDMPTR(pScrn1)->Monitor1->HDisplay);
852    BOUND(pMga->M1frameY0,0,pScrn1->virtualY -MDMPTR(pScrn1)->Monitor1->VDisplay);
853    BOUND(pScrn2->frameX0,0,pScrn2->virtualX -MDMPTR(pScrn1)->Monitor2->HDisplay);
854    BOUND(pScrn2->frameY0,0,pScrn2->virtualY -MDMPTR(pScrn1)->Monitor2->VDisplay);
855
856    pScrn1->frameX0 = x;
857    pScrn1->frameY0 = y;
858
859    /* check granularity */
860    MGAAdjustGranularity(pScrn1,&pMga->M1frameX0,&pMga->M1frameY0);
861    MGAAdjustGranularity(pScrn1,&pScrn2->frameX0,&pScrn2->frameY0);
862    MGAAdjustGranularity(pScrn1,&pScrn1->frameX0,&pScrn1->frameY0);
863
864    /* complete shitty redundant info */
865    pMga->M1frameX1 = pMga->M1frameX0 + MDMPTR(pScrn1)->Monitor1->HDisplay -1;
866    pMga->M1frameY1 = pMga->M1frameY0 + MDMPTR(pScrn1)->Monitor1->VDisplay -1;
867    pScrn2->frameX1 = pScrn2->frameX0 + MDMPTR(pScrn1)->Monitor2->HDisplay -1;
868    pScrn2->frameY1 = pScrn2->frameY0 + MDMPTR(pScrn1)->Monitor2->VDisplay -1;
869    pScrn1->frameX1 = pScrn1->frameX0 + pScrn1->currentMode->HDisplay -1;
870    pScrn1->frameY1 = pScrn1->frameY0 + pScrn1->currentMode->VDisplay -1;
871
872    MGAAdjustFrame(ADJUST_FRAME_ARGS(pScrn, pMga->M1frameX0, pMga->M1frameY0));
873    MGAAdjustFrameCrtc2(ADJUST_FRAME_ARGS(pScrn, pScrn2->frameX0, pScrn2->frameY0));
874    return;
875}
876
877Bool
878MGACloseScreenMerged(ScreenPtr pScreen) {
879    ScrnInfoPtr pScrn1 = xf86ScreenToScrn(pScreen);
880    MGAPtr pMga = MGAPTR(pScrn1);
881    ScrnInfoPtr pScrn2 = pMga->pScrn2;
882
883    if(pScrn2) {
884        free(pScrn2->monitor);
885        pScrn2->monitor = NULL;
886
887        free(pScrn2);
888        pMga->pScrn2 = NULL;
889    }
890
891    if(pScrn1->modes) {
892        pScrn1->currentMode = pScrn1->modes;
893        do {
894            DisplayModePtr p = pScrn1->currentMode->next;
895            free(pScrn1->currentMode->Private);
896            free(pScrn1->currentMode);
897            pScrn1->currentMode = p;
898        }while( pScrn1->currentMode != pScrn1->modes);
899    }
900
901    pScrn1->currentMode = pMga->M1currentMode;
902    pScrn1->modes = pMga->M1modes;
903
904    return TRUE;
905}
906
907Bool
908MGASaveScreenMerged(ScreenPtr pScreen, int mode)
909{
910    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
911    MGAPtr pMga = MGAPTR(pScrn);
912    BOOL on = xf86IsUnblank(mode);
913    CARD8 reg;
914
915    if (on) {
916/*        SetTimdeSinceLastInputEvent();*/
917
918        /* power on Dac1 */
919        reg = inMGAdac(MGA1064_MISC_CTL);
920        reg |= MGA1064_MISC_CTL_DAC_EN;
921        outMGAdac(MGA1064_MISC_CTL, reg);
922
923        /* power on Dac2 */
924        reg = inMGAdac(MGA1064_PWR_CTL);
925        reg |= MGA1064_PWR_CTL_DAC2_EN;
926        outMGAdac(MGA1064_PWR_CTL, reg);
927    } else {
928        /* power off Dac1 */
929        reg = inMGAdac(MGA1064_MISC_CTL);
930        reg &= ~MGA1064_MISC_CTL_DAC_EN;
931        outMGAdac(MGA1064_MISC_CTL, reg);
932
933        /* power off Dac2 */
934        reg = inMGAdac(MGA1064_PWR_CTL);
935        reg &= ~MGA1064_PWR_CTL_DAC2_EN;
936        outMGAdac(MGA1064_PWR_CTL, reg);
937    }
938
939    return TRUE;
940}
941
942
943