mga_merge.c revision 0bb88ba4 
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, char* s) {
22    float num=0.0;
23    int rangenum=0;
24    Bool gotdash = FALSE;
25    Bool nextdash = FALSE;
26    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(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, char* str,
134		 DisplayModePtr i, DisplayModePtr j, MgaScrn2Rel srel) {
135    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                            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    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_EV_PCI:
357    case PCI_CHIP_MGAG200_EH_PCI:
358	case PCI_CHIP_MGAG200_ER_PCI:
359    case PCI_CHIP_MGAG400:
360    case PCI_CHIP_MGAG550:
361	MGAGSetupFuncs(pScrn);
362	break;
363    }
364
365    pMga->FbAddress = pMga1->FbAddress;
366    pMga->PciInfo = pMga1->PciInfo;
367#ifndef XSERVER_LIBPCIACCESS
368    pMga->IOAddress = pMga1->IOAddress;
369    pMga->ILOADAddress = pMga1->ILOADAddress;
370    pMga->BiosFrom = pMga1->BiosFrom;
371    pMga->BiosAddress = pMga1->BiosAddress;
372#endif
373
374    /*
375     * Read the BIOS data struct
376     */
377
378    mga_read_and_process_bios( pScrn );
379
380    /* HW bpp matches reported bpp */
381    pMga->HwBpp = pMga1->HwBpp;
382
383    /*
384     * Reset card if it isn't primary one
385     */
386    if ( (!pMga->Primary && !pMga->FBDev) )
387        MGASoftReset(pScrn);
388
389
390    pScrn->videoRam = pScrn1->videoRam;
391    pMga->FbMapSize = pMga1->FbMapSize;
392    pMga->SrcOrg = pMga1->SrcOrg;
393    pMga->DstOrg = pMga1->DstOrg;
394
395   /* Set the bpp shift value */
396    pMga->BppShifts[0] = 0;
397    pMga->BppShifts[1] = 1;
398    pMga->BppShifts[2] = 0;
399    pMga->BppShifts[3] = 2;
400
401    /*
402     * fill MGAdac struct
403     * Warning: currently, it should be after RAM counting
404     */
405    (*pMga->PreInit)(pScrn);
406
407#if !defined(__powerpc__)
408
409    /* Read and print the Monitor DDC info */
410/*    pScrn->monitor->DDC = MGAdoDDC(pScrn);*/ /*FIXME: have to try this*/
411#endif /* !__powerpc__ */
412
413    /*
414     * If the driver can do gamma correction, it should call xf86SetGamma()
415     * here.
416     */
417    {
418	Gamma zeros = {0.0, 0.0, 0.0};
419
420	if (!xf86SetGamma(pScrn, zeros)) {
421	    return FALSE;
422	}
423    }
424
425
426    /* Set the min pixel clock */
427    pMga->MinClock = pMga1->MinClock;	/* XXX Guess, need to check this */
428    xf86DrvMsg(pScrn->scrnIndex, X_DEFAULT, "CRTC2: Min pixel clock is %d MHz\n",
429	       pMga->MinClock / 1000);
430   /* Override on 2nd crtc */
431
432    if (pMga->ChipRev >= 0x80 || (pMga->Chipset == PCI_CHIP_MGAG550)) {
433	/* G450, G550 */
434        pMga->MaxClock = 234000;
435    } else {
436        pMga->MaxClock = 135000;
437    }
438    xf86DrvMsg(pScrn->scrnIndex, X_DEFAULT, "CRTC2: Max pixel clock is %d MHz\n",
439	       pMga->MaxClock / 1000);
440    /*
441     * Setup the ClockRanges, which describe what clock ranges are available,
442     * and what sort of modes they can be used for.
443     */
444    clockRanges = xnfcalloc(sizeof(ClockRange), 1);
445    clockRanges->next = NULL;
446    clockRanges->minClock = pMga->MinClock;
447    clockRanges->maxClock = pMga->MaxClock;
448    clockRanges->clockIndex = -1;		/* programmable */
449    clockRanges->interlaceAllowed = TRUE;
450    clockRanges->doubleScanAllowed = TRUE;
451    clockRanges->interlaceAllowed = FALSE; /*no interlace on CRTC2 */
452
453    clockRanges->ClockMulFactor = 1;
454    clockRanges->ClockDivFactor = 1;
455    /* Only set MemClk if appropriate for the ramdac */
456    if (pMga->Dac.SetMemClk) {
457	if (pMga->MemClk == 0) {
458	    pMga->MemClk = pMga->Dac.MemoryClock;
459	    from = pMga->Dac.MemClkFrom;
460	} else
461	    from = X_CONFIG;
462	xf86DrvMsg(pScrn->scrnIndex, from, "CRTC2: MCLK used is %.1f MHz\n",
463		   pMga->MemClk / 1000.0);
464    }
465
466    /*
467     * xf86ValidateModes will check that the mode HTotal and VTotal values
468     * don't exceed the chipset's limit if pScrn->maxHValue and
469     * pScrn->maxVValue are set.  Since our MGAValidMode() already takes
470     * care of this, we don't worry about setting them here.
471     */
472    {
473	int Pitches1[] =
474	  {640, 768, 800, 960, 1024, 1152, 1280, 1600, 1920, 2048, 0};
475	int Pitches2[] =
476	  {512, 640, 768, 800, 832, 960, 1024, 1152, 1280, 1600, 1664,
477		1920, 2048, 0};
478	int *linePitches = NULL;
479	int minPitch = 256;
480	int maxPitch = 2048;
481
482        switch(pMga->Chipset) {
483	case PCI_CHIP_MGA2064:
484	   if (!pMga->NoAccel) {
485		linePitches = malloc(sizeof(Pitches1));
486		memcpy(linePitches, Pitches1, sizeof(Pitches1));
487		minPitch = maxPitch = 0;
488	   }
489	   break;
490	case PCI_CHIP_MGA2164:
491	case PCI_CHIP_MGA2164_AGP:
492	case PCI_CHIP_MGA1064:
493	   if (!pMga->NoAccel) {
494		linePitches = malloc(sizeof(Pitches2));
495		memcpy(linePitches, Pitches2, sizeof(Pitches2));
496		minPitch = maxPitch = 0;
497	   }
498	   break;
499	case PCI_CHIP_MGAG100:
500	case PCI_CHIP_MGAG100_PCI:
501	   maxPitch = 2048;
502	   break;
503	case PCI_CHIP_MGAG200:
504	case PCI_CHIP_MGAG200_PCI:
505	case PCI_CHIP_MGAG200_SE_A_PCI:
506	case PCI_CHIP_MGAG200_SE_B_PCI:
507        case PCI_CHIP_MGAG200_WINBOND_PCI:
508        case PCI_CHIP_MGAG200_EV_PCI:
509        case PCI_CHIP_MGAG200_EH_PCI:
510	case PCI_CHIP_MGAG200_ER_PCI:
511	case PCI_CHIP_MGAG400:
512	case PCI_CHIP_MGAG550:
513	   maxPitch = 4096;
514	   break;
515	}
516
517        pScrn->modePool=NULL;
518        pScrn->modes = NULL;
519	i = xf86ValidateModes(pScrn, pScrn->monitor->Modes,
520			      pScrn->display->modes, clockRanges,
521			      linePitches, minPitch, maxPitch,
522			      pMga->Roundings[(pScrn->bitsPerPixel >> 3) - 1] *
523					pScrn->bitsPerPixel, 128, 2048,
524			      pScrn->display->virtualX,
525			      pScrn->display->virtualY,
526			      pMga->FbMapSize,
527			      LOOKUP_BEST_REFRESH);
528
529	free(linePitches);
530    }
531
532
533    if (i < 1 && pMga->FBDev) {
534	fbdevHWUseBuildinMode(pScrn);
535	pScrn->displayWidth = pScrn->virtualX; /* FIXME: might be wrong */
536	i = 1;
537    }
538    if (i == -1) {
539	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "CRTC2: Validate Modes Failed\n");
540	MGAFreeRec(pScrn);
541	return FALSE;
542    }
543
544    /* Prune the modes marked as invalid */
545    xf86PruneDriverModes(pScrn);
546
547    if (i == 0 || pScrn->modes == NULL) {
548	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "CRTC2: No valid modes found\n");
549	MGAFreeRec(pScrn);
550	return FALSE;
551    }
552
553    /*
554     * Set the CRTC parameters for all of the modes based on the type
555     * of mode, and the chipset's interlace requirements.
556     *
557     * Calling this is required if the mode->Crtc* values are used by the
558     * driver and if the driver doesn't provide code to set them.  They
559     * are not pre-initialised at all.
560     */
561    MGA_NOT_HAL(xf86SetCrtcForModes(pScrn, INTERLACE_HALVE_V));
562
563    /* Set the current mode to the first in the list */
564    pScrn->currentMode = pScrn->modes;
565
566    /* Print the list of modes being used */
567    xf86PrintModes(pScrn);
568
569    /* Set display resolution */
570    xf86SetDpi(pScrn, 0, 0);
571
572    /*
573     * Compute the byte offset into the linear frame buffer where the
574     * frame buffer data should actually begin.  According to DDK misc.c
575     * line 1023, if more than 4MB is to be displayed, YDSTORG must be set
576     * appropriately to align memory bank switching, and this requires a
577     * corresponding offset on linear frame buffer access.
578     * This is only needed for WRAM.
579     */
580
581    pMga->YDstOrg = pMga1->YDstOrg;
582    xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 2, "CRTC2: YDstOrg is set to %d\n",
583		   pMga->YDstOrg);
584    pMga->FbUsableSize = pMga1->FbUsableSize;
585    pMga->FbCursorOffset = pMga1->FbCursorOffset;
586
587    pMga->CurrentLayout.bitsPerPixel = pScrn->bitsPerPixel;
588    pMga->CurrentLayout.depth = pScrn->depth;
589    pMga->CurrentLayout.displayWidth = pScrn->displayWidth;
590    pMga->CurrentLayout.weight.red = pScrn->weight.red;
591    pMga->CurrentLayout.weight.green = pScrn->weight.green;
592    pMga->CurrentLayout.weight.blue = pScrn->weight.blue;
593    pMga->CurrentLayout.mode = pScrn->currentMode;
594
595
596    Monitor2Pos = mgaRightOf;
597    if ((s = xf86GetOptValString(pMga1->Options, OPTION_MONITOR2POS))) {
598        switch(s[0]) {
599            case 'L': case 'l': case 'G': case 'g':
600                Monitor2Pos = mgaLeftOf;
601                break;
602            case 'R': case 'r': case 'D': case 'd':
603                Monitor2Pos = mgaRightOf;
604                break;
605
606            case 'A': case 'a': case 'H': case 'h':
607                Monitor2Pos = mgaAbove;
608                break;
609
610            case 'B': case 'b':
611                Monitor2Pos = mgaBelow;
612                break;
613
614            case 'C': case 'c':
615                Monitor2Pos = mgaClone;
616                break;
617            default:
618                Monitor2Pos = mgaRightOf;
619                break;
620        }
621    }
622
623    /* Fool xf86 into thinking we have huge modes */
624    /* Keep the original values somewhere */
625    pMga1->M1modes = pScrn1->modes;
626    pMga1->M1currentMode = pScrn1->currentMode;
627    /* make a copy of the mode list, so we can modify it. */
628    if ((s = xf86GetOptValString(pMga1->Options, OPTION_METAMODES))) {
629        pScrn1->modes = GenerateModeList(pScrn,s,pMga1->M1modes,pScrn->modes,Monitor2Pos); /*FIXME: free this list*/
630        if(!pScrn1->modes) {
631	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Parse Error reading MetaModes, or No modes left.\n");
632            return FALSE;
633        }
634
635        pScrn1->modes = pScrn1->modes->next;
636        pScrn1->currentMode = pScrn1->modes;
637    } else {
638        xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "MetaModes option missing.\n");
639        return FALSE;
640    }
641    xf86DrvMsg(pScrn1->scrnIndex, X_INFO, "==== End of second screen initialization ====\n");
642    return TRUE;
643}
644
645void
646MGADisplayPowerManagementSetMerged(ScrnInfoPtr pScrn, int PowerManagementMode,
647				  int flags)
648{
649    MGADisplayPowerManagementSet(pScrn,PowerManagementMode,flags);
650    MGADisplayPowerManagementSetCrtc2(pScrn,PowerManagementMode,flags);
651}
652
653typedef struct _region {
654    int x0,x1,y0,y1;
655    } region;
656
657static Bool
658InRegion(int x, int y, region r) {
659    return (r.x0 <= x) && (x < r.x1) && (r.y0 <= y) && (y < r.y1);
660}
661
662
663#define BOUND(test,low,hi) { \
664    if(test < low) test = low; \
665    if(test > hi) test = hi; }
666#define REBOUND(low,hi,test) { \
667    if(test < low) { \
668        hi += test-low; \
669        low = test; } \
670    if(test > hi) { \
671        low += test-hi; \
672        hi = test; } }
673 void
674MGAMergePointerMoved(SCRN_ARG_TYPE arg, int x, int y)
675{
676  SCRN_INFO_PTR(arg);
677  MGAPtr        pMga = MGAPTR(pScrn);
678  ScrnInfoPtr   pScr2 = pMga->pScrn2;
679
680  region out,in1,in2,f2,f1;
681
682  int deltax,deltay;
683
684  /* for ease. */
685  f1.x0 = pMga->M1frameX0;
686  f1.x1 = pMga->M1frameX1+1;
687  f1.y0 = pMga->M1frameY0;
688  f1.y1 = pMga->M1frameY1+1;
689  f2.x0 = pScr2->frameX0;
690  f2.x1 = pScr2->frameX1+1;
691  f2.y0 = pScr2->frameY0;
692  f2.y1 = pScr2->frameY1+1;
693
694
695  /*specify outer clipping region. crossing this causes all frames to move*/
696  out.x0 = pScrn->frameX0;
697  out.x1 = pScrn->frameX1+1;
698  out.y0 = pScrn->frameY0;
699  out.y1 = pScrn->frameY1+1;
700
701  /*
702   * specify inner sliding window. beeing outsize both frames, and inside
703   * the outer cliping window, causes corresponding frame to slide
704   */
705  in1 = out;
706  in2 = out;
707  switch(((MergedDisplayModePtr)pScrn->currentMode->Private)->Monitor2Pos) {
708      case mgaLeftOf :
709          in1.x0 = f1.x0;
710          in2.x1 = f2.x1;
711          break;
712      case mgaRightOf :
713          in1.x1 = f1.x1;
714          in2.x0 = f2.x0;
715          break;
716      case mgaBelow :
717          in1.y1 = f1.y1;
718          in2.y0 = f2.y0;
719          break;
720      case mgaAbove :
721          in1.y0 = f1.y0;
722          in2.y1 = f2.y1;
723          break;
724      case mgaClone :
725          break;
726      }
727
728
729    deltay = 0;
730    deltax = 0;
731
732    if(InRegion(x,y,out)) {
733        if( InRegion(x,y, in1) && !InRegion(x,y, f1) ) {
734            REBOUND(f1.x0,f1.x1,x);
735            REBOUND(f1.y0,f1.y1,y);
736            deltax = 1; /*force frame update */
737        }
738        if( InRegion(x,y, in2) && !InRegion(x,y, f2) ) {
739            REBOUND(f2.x0,f2.x1,x);
740            REBOUND(f2.y0,f2.y1,y);
741            deltax = 1; /*force frame update */
742        }
743    }
744    else {  /*outside outer clipping region*/
745        if ( out.x0 > x) {
746            deltax = x - out.x0;
747        }
748        if ( out.x1 < x) {
749            deltax = x - out.x1;
750        }
751        f1.x0 += deltax;
752        f1.x1 += deltax;
753        f2.x0 += deltax;
754        f2.x1 += deltax;
755        pScrn->frameX0 += deltax;
756        pScrn->frameX1 += deltax;
757
758
759        if ( out.y0 > y) {
760            deltay = y - out.y0;
761        }
762        if ( out.y1 < y) {
763            deltay = y - out.y1;
764        }
765        f1.y0 += deltay;
766        f1.y1 += deltay;
767        f2.y0 += deltay;
768        f2.y1 += deltay;
769        pScrn->frameY0 += deltay;
770        pScrn->frameY1 += deltay;
771    }
772
773
774    if (deltax != 0 || deltay != 0) {
775        /* back to reality. */
776        pMga->M1frameX0 = f1.x0;
777        pMga->M1frameY0 = f1.y0;
778        pScr2->frameX0 = f2.x0;
779        pScr2->frameY0 = f2.y0;
780
781        /*Adjust Granularity */
782        MGAAdjustGranularity(pScrn,&pMga->M1frameX0,&pMga->M1frameY0);
783        MGAAdjustGranularity(pScrn,&pScr2->frameX0,&pScr2->frameY0);
784        MGAAdjustGranularity(pScrn,&pScrn->frameX0,&pScrn->frameY0);
785
786        pMga->M1frameX1 = pMga->M1frameX0 + MDMPTR(pScrn)->Monitor1->HDisplay -1;
787        pMga->M1frameY1 = pMga->M1frameY0 + MDMPTR(pScrn)->Monitor1->VDisplay -1;
788        pScr2->frameX1 = pScr2->frameX0 + MDMPTR(pScrn)->Monitor2->HDisplay -1;
789        pScr2->frameY1 = pScr2->frameY0 + MDMPTR(pScrn)->Monitor2->VDisplay -1;
790        pScrn->frameX1 = pScrn->frameX0 + pScrn->currentMode->HDisplay -1;
791        pScrn->frameY1 = pScrn->frameY0 + pScrn->currentMode->VDisplay -1;
792
793        MGAAdjustFrame(ADJUST_FRAME_ARGS(pScrn, pMga->M1frameX0, pMga->M1frameY0));
794        MGAAdjustFrameCrtc2(ADJUST_FRAME_ARGS(pScrn, pScr2->frameX0, pScr2->frameY0));
795    }
796
797/*  if(pMga->PointerMoved)
798      (*pMga->PointerMoved)(scrnIndex, x, y);  FIXME: do I need to call old func?*/
799
800}
801
802
803void
804MGAAdjustMergeFrames(ADJUST_FRAME_ARGS_DECL) {
805    SCRN_INFO_PTR(arg);
806    ScrnInfoPtr pScrn1 = pScrn;
807    MGAPtr pMga = MGAPTR(pScrn1);
808    ScrnInfoPtr pScrn2 = pMga->pScrn2;
809    int VTotal = pScrn1->currentMode->VDisplay;
810    int HTotal = pScrn1->currentMode->HDisplay;
811    int VMax = VTotal;
812    int HMax = HTotal;
813
814    BOUND(x,0,pScrn1->virtualX-HTotal);
815    BOUND(y,0,pScrn1->virtualY-VTotal);
816    switch(MDMPTR(pScrn1)->Monitor2Pos) {
817        case mgaLeftOf:
818            pScrn2->frameX0 = x;
819            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
820            pMga->M1frameX0 = x+MDMPTR(pScrn1)->Monitor2->HDisplay;
821            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
822            break;
823        case mgaRightOf:
824            pMga->M1frameX0 = x;
825            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
826            pScrn2->frameX0 = x+MDMPTR(pScrn1)->Monitor1->HDisplay;
827            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
828            break;
829        case mgaAbove:
830            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
831            pScrn2->frameY0 = y;
832            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
833            pMga->M1frameY0 = y+MDMPTR(pScrn1)->Monitor2->VDisplay;
834            break;
835        case mgaBelow:
836            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
837            pMga->M1frameY0 = y;
838            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
839            pScrn2->frameY0 = y+MDMPTR(pScrn1)->Monitor1->VDisplay;
840            break;
841        case mgaClone:
842            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
843            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
844            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
845            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
846            break;
847    }
848    /* sanity checks. Make shure were not out of bounds */
849    BOUND(pMga->M1frameX0,0,pScrn1->virtualX -MDMPTR(pScrn1)->Monitor1->HDisplay);
850    BOUND(pMga->M1frameY0,0,pScrn1->virtualY -MDMPTR(pScrn1)->Monitor1->VDisplay);
851    BOUND(pScrn2->frameX0,0,pScrn2->virtualX -MDMPTR(pScrn1)->Monitor2->HDisplay);
852    BOUND(pScrn2->frameY0,0,pScrn2->virtualY -MDMPTR(pScrn1)->Monitor2->VDisplay);
853
854    pScrn1->frameX0 = x;
855    pScrn1->frameY0 = y;
856
857    /* check granularity */
858    MGAAdjustGranularity(pScrn1,&pMga->M1frameX0,&pMga->M1frameY0);
859    MGAAdjustGranularity(pScrn1,&pScrn2->frameX0,&pScrn2->frameY0);
860    MGAAdjustGranularity(pScrn1,&pScrn1->frameX0,&pScrn1->frameY0);
861
862    /* complete shitty redundant info */
863    pMga->M1frameX1 = pMga->M1frameX0 + MDMPTR(pScrn1)->Monitor1->HDisplay -1;
864    pMga->M1frameY1 = pMga->M1frameY0 + MDMPTR(pScrn1)->Monitor1->VDisplay -1;
865    pScrn2->frameX1 = pScrn2->frameX0 + MDMPTR(pScrn1)->Monitor2->HDisplay -1;
866    pScrn2->frameY1 = pScrn2->frameY0 + MDMPTR(pScrn1)->Monitor2->VDisplay -1;
867    pScrn1->frameX1 = pScrn1->frameX0 + pScrn1->currentMode->HDisplay -1;
868    pScrn1->frameY1 = pScrn1->frameY0 + pScrn1->currentMode->VDisplay -1;
869
870    MGAAdjustFrame(ADJUST_FRAME_ARGS(pScrn, pMga->M1frameX0, pMga->M1frameY0));
871    MGAAdjustFrameCrtc2(ADJUST_FRAME_ARGS(pScrn, pScrn2->frameX0, pScrn2->frameY0));
872    return;
873}
874
875Bool
876MGACloseScreenMerged(ScreenPtr pScreen) {
877    ScrnInfoPtr pScrn1 = xf86ScreenToScrn(pScreen);
878    MGAPtr pMga = MGAPTR(pScrn1);
879    ScrnInfoPtr pScrn2 = pMga->pScrn2;
880
881    if(pScrn2) {
882        free(pScrn2->monitor);
883        pScrn2->monitor = NULL;
884
885        free(pScrn2);
886        pMga->pScrn2 = NULL;
887    }
888
889    if(pScrn1->modes) {
890        pScrn1->currentMode = pScrn1->modes;
891        do {
892            DisplayModePtr p = pScrn1->currentMode->next;
893            free(pScrn1->currentMode->Private);
894            free(pScrn1->currentMode);
895            pScrn1->currentMode = p;
896        }while( pScrn1->currentMode != pScrn1->modes);
897    }
898
899    pScrn1->currentMode = pMga->M1currentMode;
900    pScrn1->modes = pMga->M1modes;
901
902    return TRUE;
903}
904
905Bool
906MGASaveScreenMerged(ScreenPtr pScreen, int mode)
907{
908    ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
909    MGAPtr pMga = MGAPTR(pScrn);
910    BOOL on = xf86IsUnblank(mode);
911    CARD8 reg;
912
913    if (on) {
914/*        SetTimdeSinceLastInputEvent();*/
915
916        /* power on Dac1 */
917        reg = inMGAdac(MGA1064_MISC_CTL);
918        reg |= MGA1064_MISC_CTL_DAC_EN;
919        outMGAdac(MGA1064_MISC_CTL, reg);
920
921        /* power on Dac2 */
922        reg = inMGAdac(MGA1064_PWR_CTL);
923        reg |= MGA1064_PWR_CTL_DAC2_EN;
924        outMGAdac(MGA1064_PWR_CTL, reg);
925    } else {
926        /* power off Dac1 */
927        reg = inMGAdac(MGA1064_MISC_CTL);
928        reg &= ~MGA1064_MISC_CTL_DAC_EN;
929        outMGAdac(MGA1064_MISC_CTL, reg);
930
931        /* power off Dac2 */
932        reg = inMGAdac(MGA1064_PWR_CTL);
933        reg &= ~MGA1064_PWR_CTL_DAC2_EN;
934        outMGAdac(MGA1064_PWR_CTL, reg);
935    }
936
937    return TRUE;
938}
939
940
941