mga_merge.c revision eda3803b 
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#include "xf86Resources.h"
9
10/* All drivers need this */
11
12#include "compiler.h"
13
14/* Drivers for PCI hardware need this */
15#include "xf86PciInfo.h"
16#include "mga.h"
17#include "mga_macros.h"
18#include "mga_reg.h"
19#include "mga_merge.h"
20
21#include "fbdevhw.h"
22
23static int
24StrToRanges(range* r, char* s) {
25    float num=0.0;
26    int rangenum=0;
27    Bool gotdash = FALSE;
28    Bool nextdash = FALSE;
29    char* strnum=NULL;
30    do {
31        switch(*s) {
32            case '0': case '1': case '2': case '3': case '4': case '5':
33            case '6': case '7': case '8': case '9': case '.':
34                if(strnum == NULL) {
35                    strnum = s;
36                    gotdash = nextdash;
37                    nextdash = FALSE;
38                 }
39
40                break;
41            case '-':
42            case ' ': case 0:
43                if(strnum == NULL) break; /*is extra seperator */
44                if(strnum != NULL) sscanf(strnum,"%f",&num);
45                if(gotdash) /*if wasn't singlet: correct. */
46                    r[rangenum-1].hi = num;
47                else { /*first, assume singlet */
48                    r[rangenum].lo = num;
49                    r[rangenum].hi = num;
50                    rangenum++;
51                }
52                strnum = NULL;
53                if(*s == '-')
54                    nextdash = (rangenum != 0); /*ignore dash if before any number.*/
55                break;
56            default :
57                return 0;
58        }
59    } while(*(s++) != 0); /* run loop for every char including null terminator.*/
60
61    return rangenum;
62}
63
64
65/* Copys mode i, links the result to dest, and returns it.
66 * Links i and j in Private record.
67 * if dest is NULL, return value is copy of i linked to itself.
68 */
69static DisplayModePtr
70CopyModeNLink(ScrnInfoPtr pScrn, DisplayModePtr dest, DisplayModePtr i, DisplayModePtr j, MgaScrn2Rel srel) {
71    DisplayModePtr mode;
72    int dx = 0,dy = 0;
73    /* start with first node */
74    mode = xalloc(sizeof(DisplayModeRec));
75    memcpy(mode,i, sizeof(DisplayModeRec));
76    mode->Private = xalloc(sizeof(MergedDisplayModeRec));
77    ((MergedDisplayModePtr)mode->Private)->Monitor1 = i;
78    ((MergedDisplayModePtr)mode->Private)->Monitor2 = j;
79    ((MergedDisplayModePtr)mode->Private)->Monitor2Pos = srel;
80    mode->PrivSize = 0;
81
82        switch(srel) {
83            case mgaLeftOf:
84            case mgaRightOf:
85                dx = min(pScrn->virtualX,i->HDisplay + j->HDisplay) -  mode->HDisplay;
86                dy = min(pScrn->virtualY,  max(i->VDisplay,j->VDisplay)) - mode->VDisplay;
87                break;
88            case mgaAbove:
89            case mgaBelow:
90                dy = min(pScrn->virtualY,i->VDisplay + j->VDisplay) - mode->VDisplay;
91                dx = min(pScrn->virtualX, max(i->HDisplay,j->HDisplay)) - mode->HDisplay;
92                break;
93            case mgaClone:
94                dx = min(pScrn->virtualX, max(i->HDisplay,j->HDisplay)) - mode->HDisplay;
95                dy = min(pScrn->virtualY, max(i->VDisplay,j->VDisplay)) - mode->VDisplay;
96                break;
97        }
98    mode->HDisplay += dx;
99    mode->HSyncStart += dx;
100    mode->HSyncEnd += dx;
101    mode->HTotal += dx;
102    mode->VDisplay += dy;
103    mode->VSyncStart += dy;
104    mode->VSyncEnd += dy;
105    mode->VTotal += dy;
106    mode->Clock = 0; /* Shows we're in Merge mode. */
107
108    mode->next = mode;
109    mode->prev = mode;
110
111    if(dest) {
112        /* Insert node after "dest" */
113        mode->next = dest->next;
114        dest->next->prev = mode;
115        mode->prev = dest;
116        dest->next = mode;
117    }
118
119    return mode;
120}
121
122static DisplayModePtr
123GetModeFromName(char* str, DisplayModePtr i)
124{
125    DisplayModePtr c = i;
126    if(!i) return NULL;
127    do {
128        if(strcmp(str,c->name) == 0) return c;
129        c = c->next;
130    } while(c != i);
131    return NULL;
132}
133
134/* takes a config file string of MetaModes and generates a MetaModeList */
135static DisplayModePtr
136GenerateModeList(ScrnInfoPtr pScrn, char* str,
137		 DisplayModePtr i, DisplayModePtr j, MgaScrn2Rel srel) {
138    char* strmode = str;
139    char modename[256];
140    Bool gotdash = FALSE;
141    MgaScrn2Rel sr;
142
143    DisplayModePtr mode1 = NULL;
144    DisplayModePtr mode2 = NULL;
145    DisplayModePtr result = NULL;
146    do {
147        switch(*str) {
148            case 0:
149            case '-':
150            case ' ':
151	    case ',':
152	    case ';':
153                if((strmode != str)) {/*we got a mode */
154                    /* read new entry */
155                    strncpy(modename,strmode,str - strmode);
156                    modename[str - strmode] = 0;
157
158                    if(gotdash) {
159                        if(mode1 == NULL) return NULL;
160                        mode2 = GetModeFromName(modename,j);
161                        if(!mode2) {
162                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
163                                "Mode: \"%s\" is not a supported mode for monitor 2\n",modename);
164                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
165                                "Skipping metamode \"%s-%s\".\n",mode1->name,modename);
166                            mode1 = NULL;
167                        }
168                    } else {
169                        mode1 = GetModeFromName(modename,i);
170                        if(!mode1) {
171                            char* tmps = str;
172                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
173                                "Mode: \"%s\" is not a supported mode for monitor 1\n",modename);
174                            /* find if a monitor2 mode follows */
175                            gotdash = FALSE;
176                            while(*tmps == ' ' || *tmps == ';') tmps++;
177                            if(*tmps == '-' || *tmps == ',') { /* skip the next mode */
178                                tmps++;
179                                while(*tmps == ' ' || *tmps == ';') tmps++; /*skip spaces */
180                                while(*tmps && *tmps != ' ' && *tmps != ';' && *tmps != '-' && *tmps != ',') tmps++; /*skip modename */
181                                /* for error message */
182                                strncpy(modename,strmode,tmps - strmode);
183                                modename[tmps - strmode] = 0;
184                                str = tmps-1;
185                            }
186                            xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
187                                "Skipping metamode \"%s\".\n",modename);
188                            mode1 = NULL;
189                        }
190                    }
191                    gotdash = FALSE;
192                }
193                strmode = str+1; /* number starts on next char */
194                gotdash |= (*str == '-' || *str == ',');
195
196                if(*str != 0) break; /* if end of string, we wont get a chance to catch a char and run the
197                                        default case. do it now */
198
199            default:
200                if(!gotdash && mode1) { /* complete previous pair */
201                    sr = srel;
202                    if(!mode2) {
203                        mode2 = GetModeFromName(mode1->name,j);
204                        sr = mgaClone;
205                    }
206                    if(!mode2) {
207                        xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
208                            "Mode: \"%s\" is not a supported mode for monitor 2\n",mode1->name);
209                        xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
210                            "Skipping clone mode \"%s\".\n", mode1->name);
211                        mode1 = NULL;
212                    } else {
213                        result = CopyModeNLink(pScrn,result,mode1,mode2,sr);
214                        mode1 = NULL;
215                        mode2 = NULL;
216                    }
217                }
218                break;
219
220        }
221    } while(*(str++) != 0);
222    return result;
223}
224
225
226/* second CRTC init funcitons. Used to check monitor timings and refreshes.
227 * this function looses lots of maintainability points due to redundancy,
228 * but it still was the cleanest and least-intrusive way I found. */
229
230Bool
231MGAPreInitMergedFB(ScrnInfoPtr pScrn1, int flags)
232{
233    ScrnInfoPtr pScrn;
234    MGAPtr pMga;
235    MGAPtr pMga1;
236    MessageType from;
237    int i;
238    char* s;
239    ClockRangePtr clockRanges;
240#ifdef USEMGAHAL
241    ULONG status;
242#endif
243    MgaScrn2Rel Monitor2Pos;
244
245    xf86DrvMsg(pScrn1->scrnIndex, X_INFO, "==== Start of second screen initialization ====\n");
246    pScrn = xalloc(sizeof(ScrnInfoRec));
247    memcpy(pScrn,pScrn1,sizeof(ScrnInfoRec));
248
249    pScrn->driverPrivate = NULL;
250    /* Allocate the MGARec driverPrivate */
251    if (!MGAGetRec(pScrn)) {
252	return FALSE;
253    }
254
255    pMga = MGAPTR(pScrn);
256#ifdef USEMGAHAL
257    pMga->pMgaModeInfo = NULL; /*will be allocated later if NULL*/
258#endif
259    pMga1 = MGAPTR(pScrn1);
260    pMga1->pScrn2 = pScrn;
261
262    /* Get the entity, and make sure it is PCI. */
263    pMga->pEnt = pMga1->pEnt;
264
265    /* Set pMga->device to the relevant Device section */
266    pMga->device = pMga1->device;
267
268    if (flags & PROBE_DETECT) {
269	MGAProbeDDC(pScrn, pMga->pEnt->index); /*FIXME make shure this probes second monitor */
270	return TRUE;
271    }
272
273#ifndef XSERVER_LIBPCIACCESS
274    pMga->PciTag = pMga1->PciTag;
275#endif
276    pMga->Primary = pMga1->Primary;
277
278    /* Set pScrn->monitor */
279    {
280        pScrn->monitor = xalloc(sizeof(MonRec));
281        /* copy everything we don't care about */
282        memcpy(pScrn->monitor,pScrn1->monitor,sizeof(MonRec));
283        pScrn->monitor->DDC = NULL;   /*FIXME:have to try this */
284        if ((s = xf86GetOptValString(pMga1->Options, OPTION_HSYNC2))) {
285            pScrn->monitor->nHsync = StrToRanges(pScrn->monitor->hsync,s);
286        }
287        if ((s = xf86GetOptValString(pMga1->Options, OPTION_VREFRESH2))) {
288            pScrn->monitor->nVrefresh = StrToRanges(pScrn->monitor->vrefresh,s);
289        }
290
291
292
293   }
294
295    pMga->SecondCrtc = TRUE;
296    pMga->HWCursor = FALSE;
297    pScrn->AdjustFrame = MGAAdjustMergeFrames;
298    pScrn1->AdjustFrame = MGAAdjustMergeFrames;
299
300/*    if (!xf86SetDepthBpp(pScrn, 0, 0, 0, flags24))   FIXME:have to copy result form scrn1
301  if (!xf86SetWeight(pScrn, zeros, zeros)) {
302*/
303
304    /* We use a programamble clock */
305    pScrn->progClock = TRUE;
306
307    /* Collect all of the relevant option flags (fill in pScrn->options) */
308    pScrn->options = pScrn1->options;
309
310/*   xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, pMga->Options);*/
311    pMga->Options = pMga1->Options;
312
313
314    /* Set the bits per RGB for 8bpp mode */
315    if (pScrn->depth == 8)
316	pScrn->rgbBits = 8;
317
318    /*
319     * Set the Chipset and ChipRev, allowing config file entries to
320     * override.
321     */
322    pScrn->chipset = pScrn1->chipset;
323    pMga->Chipset = pMga1->Chipset;
324    pMga->ChipRev = pMga1->ChipRev;
325
326#ifdef XF86DRI
327    pMga->agpMode = pMga1->agpMode;
328#endif
329
330    pMga->NoAccel = pMga1->NoAccel;
331    pMga->UsePCIRetry = pMga1->UsePCIRetry;
332    pMga->SyncOnGreen = pMga1->SyncOnGreen;
333    pMga->ShowCache = pMga1->ShowCache;
334    pMga->HasSDRAM = pMga1->HasSDRAM;
335    pMga->MemClk = pMga1->MemClk;
336    pMga->colorKey = pMga1->colorKey;
337    pScrn->colorKey = pScrn1->colorKey;
338    pScrn->overlayFlags = pScrn1->overlayFlags;
339    pMga->videoKey = pMga1->videoKey;
340    /* unsupported options */
341    pMga->HWCursor = FALSE;
342    pMga->ShadowFB = FALSE;
343    pMga->FBDev = FALSE;
344
345    pMga->OverclockMem = pMga1->OverclockMem;
346    pMga->TexturedVideo = pMga1->TexturedVideo;
347    pMga->MergedFB = TRUE;
348
349    pMga->Rotate = 0;
350
351    switch (pMga->Chipset) {
352    case PCI_CHIP_MGA2064:
353    case PCI_CHIP_MGA2164:
354    case PCI_CHIP_MGA2164_AGP:
355	MGA2064SetupFuncs(pScrn);
356	break;
357    case PCI_CHIP_MGA1064:
358    case PCI_CHIP_MGAG100:
359    case PCI_CHIP_MGAG100_PCI:
360    case PCI_CHIP_MGAG200:
361    case PCI_CHIP_MGAG200_PCI:
362    case PCI_CHIP_MGAG200_SE_A_PCI:
363    case PCI_CHIP_MGAG200_SE_B_PCI:
364    case PCI_CHIP_MGAG200_WINBOND_PCI:
365    case PCI_CHIP_MGAG200_EV_PCI:
366    case PCI_CHIP_MGAG400:
367    case PCI_CHIP_MGAG550:
368	MGAGSetupFuncs(pScrn);
369	break;
370    }
371
372    pMga->FbAddress = pMga1->FbAddress;
373    pMga->PciInfo = pMga1->PciInfo;
374#ifndef XSERVER_LIBPCIACCESS
375    pMga->IOAddress = pMga1->IOAddress;
376    pMga->ILOADAddress = pMga1->ILOADAddress;
377    pMga->BiosFrom = pMga1->BiosFrom;
378    pMga->BiosAddress = pMga1->BiosAddress;
379#endif
380
381    /*
382     * Read the BIOS data struct
383     */
384
385    mga_read_and_process_bios( pScrn );
386
387    /* HW bpp matches reported bpp */
388    pMga->HwBpp = pMga1->HwBpp;
389
390    /*
391     * Reset card if it isn't primary one
392     */
393    if ( (!pMga->Primary && !pMga->FBDev) || xf86IsPc98() )
394        MGASoftReset(pScrn);
395
396
397    pScrn->videoRam = pScrn1->videoRam;
398    pMga->FbMapSize = pMga1->FbMapSize;
399    pMga->SrcOrg = pMga1->SrcOrg;
400    pMga->DstOrg = pMga1->DstOrg;
401
402   /* Set the bpp shift value */
403    pMga->BppShifts[0] = 0;
404    pMga->BppShifts[1] = 1;
405    pMga->BppShifts[2] = 0;
406    pMga->BppShifts[3] = 2;
407
408    /*
409     * fill MGAdac struct
410     * Warning: currently, it should be after RAM counting
411     */
412    (*pMga->PreInit)(pScrn);
413
414#if !defined(__powerpc__)
415
416    /* Read and print the Monitor DDC info */
417/*    pScrn->monitor->DDC = MGAdoDDC(pScrn);*/ /*FIXME: have to try this*/
418#endif /* !__powerpc__ */
419
420    /*
421     * If the driver can do gamma correction, it should call xf86SetGamma()
422     * here.
423     */
424    {
425	Gamma zeros = {0.0, 0.0, 0.0};
426
427	if (!xf86SetGamma(pScrn, zeros)) {
428	    return FALSE;
429	}
430    }
431
432
433    /* Set the min pixel clock */
434    pMga->MinClock = pMga1->MinClock;	/* XXX Guess, need to check this */
435    xf86DrvMsg(pScrn->scrnIndex, X_DEFAULT, "CRTC2: Min pixel clock is %d MHz\n",
436	       pMga->MinClock / 1000);
437   /* Override on 2nd crtc */
438
439    if (pMga->ChipRev >= 0x80 || (pMga->Chipset == PCI_CHIP_MGAG550)) {
440	/* G450, G550 */
441        pMga->MaxClock = 234000;
442    } else {
443        pMga->MaxClock = 135000;
444    }
445    xf86DrvMsg(pScrn->scrnIndex, X_DEFAULT, "CRTC2: Max pixel clock is %d MHz\n",
446	       pMga->MaxClock / 1000);
447    /*
448     * Setup the ClockRanges, which describe what clock ranges are available,
449     * and what sort of modes they can be used for.
450     */
451    clockRanges = xnfcalloc(sizeof(ClockRange), 1);
452    clockRanges->next = NULL;
453    clockRanges->minClock = pMga->MinClock;
454    clockRanges->maxClock = pMga->MaxClock;
455    clockRanges->clockIndex = -1;		/* programmable */
456    clockRanges->interlaceAllowed = TRUE;
457    clockRanges->doubleScanAllowed = TRUE;
458#ifdef USEMGAHAL
459    MGA_HAL(clockRanges->interlaceAllowed = FALSE);
460    MGA_HAL(clockRanges->doubleScanAllowed = FALSE);
461#endif
462    clockRanges->interlaceAllowed = FALSE; /*no interlace on CRTC2 */
463
464    clockRanges->ClockMulFactor = 1;
465    clockRanges->ClockDivFactor = 1;
466    /* Only set MemClk if appropriate for the ramdac */
467    if (pMga->Dac.SetMemClk) {
468	if (pMga->MemClk == 0) {
469	    pMga->MemClk = pMga->Dac.MemoryClock;
470	    from = pMga->Dac.MemClkFrom;
471	} else
472	    from = X_CONFIG;
473	xf86DrvMsg(pScrn->scrnIndex, from, "CRTC2: MCLK used is %.1f MHz\n",
474		   pMga->MemClk / 1000.0);
475    }
476
477    /*
478     * xf86ValidateModes will check that the mode HTotal and VTotal values
479     * don't exceed the chipset's limit if pScrn->maxHValue and
480     * pScrn->maxVValue are set.  Since our MGAValidMode() already takes
481     * care of this, we don't worry about setting them here.
482     */
483    {
484	int Pitches1[] =
485	  {640, 768, 800, 960, 1024, 1152, 1280, 1600, 1920, 2048, 0};
486	int Pitches2[] =
487	  {512, 640, 768, 800, 832, 960, 1024, 1152, 1280, 1600, 1664,
488		1920, 2048, 0};
489	int *linePitches = NULL;
490	int minPitch = 256;
491	int maxPitch = 2048;
492
493        switch(pMga->Chipset) {
494	case PCI_CHIP_MGA2064:
495	   if (!pMga->NoAccel) {
496		linePitches = xalloc(sizeof(Pitches1));
497		memcpy(linePitches, Pitches1, sizeof(Pitches1));
498		minPitch = maxPitch = 0;
499	   }
500	   break;
501	case PCI_CHIP_MGA2164:
502	case PCI_CHIP_MGA2164_AGP:
503	case PCI_CHIP_MGA1064:
504	   if (!pMga->NoAccel) {
505		linePitches = xalloc(sizeof(Pitches2));
506		memcpy(linePitches, Pitches2, sizeof(Pitches2));
507		minPitch = maxPitch = 0;
508	   }
509	   break;
510	case PCI_CHIP_MGAG100:
511	case PCI_CHIP_MGAG100_PCI:
512	   maxPitch = 2048;
513	   break;
514	case PCI_CHIP_MGAG200:
515	case PCI_CHIP_MGAG200_PCI:
516	case PCI_CHIP_MGAG200_SE_A_PCI:
517	case PCI_CHIP_MGAG200_SE_B_PCI:
518        case PCI_CHIP_MGAG200_WINBOND_PCI:
519        case PCI_CHIP_MGAG200_EV_PCI:
520	case PCI_CHIP_MGAG400:
521	case PCI_CHIP_MGAG550:
522	   maxPitch = 4096;
523	   break;
524	}
525
526        pScrn->modePool=NULL;
527        pScrn->modes = NULL;
528	i = xf86ValidateModes(pScrn, pScrn->monitor->Modes,
529			      pScrn->display->modes, clockRanges,
530			      linePitches, minPitch, maxPitch,
531			      pMga->Roundings[(pScrn->bitsPerPixel >> 3) - 1] *
532					pScrn->bitsPerPixel, 128, 2048,
533			      pScrn->display->virtualX,
534			      pScrn->display->virtualY,
535			      pMga->FbMapSize,
536			      LOOKUP_BEST_REFRESH);
537
538	if (linePitches)
539	   xfree(linePitches);
540    }
541
542
543    if (i < 1 && pMga->FBDev) {
544	fbdevHWUseBuildinMode(pScrn);
545	pScrn->displayWidth = pScrn->virtualX; /* FIXME: might be wrong */
546	i = 1;
547    }
548    if (i == -1) {
549	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "CRTC2: Validate Modes Failed\n");
550	MGAFreeRec(pScrn);
551	return FALSE;
552    }
553
554    /* Prune the modes marked as invalid */
555    xf86PruneDriverModes(pScrn);
556
557    if (i == 0 || pScrn->modes == NULL) {
558	xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "CRTC2: No valid modes found\n");
559	MGAFreeRec(pScrn);
560	return FALSE;
561    }
562#ifdef USEMGAHAL
563    MGA_HAL(
564
565    pMga->pBoard = pMga1->pBoard;
566    pMga->pClientStruct = pMga1->pClientStruct;
567    pMga->pMgaHwInfo = pMga1->pMgaHwInfo;
568
569
570    MGAFillModeInfoStruct(pScrn,NULL);
571    /* Fields usually handled by MGAFillModeInfoStruct, but are unavailable
572     * because no mode is given
573     */
574    pMga->pMgaModeInfo->ulDispWidth = pScrn->virtualX;
575    pMga->pMgaModeInfo->ulDispHeight = pScrn->virtualY;
576
577    if((status = MGAValidateMode(pMga->pBoard,pMga->pMgaModeInfo)) != 0) {
578	xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
579		   "MGAValidateMode from HALlib found the mode to be invalid.\n"
580		   "\tError: 0x%lx\n", status);
581        return FALSE;
582    }
583    pScrn->displayWidth = pMga->pMgaModeInfo->ulFBPitch;
584    );	/* MGA_HAL */
585#endif
586
587    /*
588     * Set the CRTC parameters for all of the modes based on the type
589     * of mode, and the chipset's interlace requirements.
590     *
591     * Calling this is required if the mode->Crtc* values are used by the
592     * driver and if the driver doesn't provide code to set them.  They
593     * are not pre-initialised at all.
594     */
595#ifdef USEMGAHAL
596    MGA_HAL(xf86SetCrtcForModes(pScrn, 0));
597#endif
598    MGA_NOT_HAL(xf86SetCrtcForModes(pScrn, INTERLACE_HALVE_V));
599
600    /* Set the current mode to the first in the list */
601    pScrn->currentMode = pScrn->modes;
602
603    /* Print the list of modes being used */
604    xf86PrintModes(pScrn);
605
606    /* Set display resolution */
607    xf86SetDpi(pScrn, 0, 0);
608
609    /*
610     * Compute the byte offset into the linear frame buffer where the
611     * frame buffer data should actually begin.  According to DDK misc.c
612     * line 1023, if more than 4MB is to be displayed, YDSTORG must be set
613     * appropriately to align memory bank switching, and this requires a
614     * corresponding offset on linear frame buffer access.
615     * This is only needed for WRAM.
616     */
617
618    pMga->YDstOrg = pMga1->YDstOrg;
619    xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, 2, "CRTC2: YDstOrg is set to %d\n",
620		   pMga->YDstOrg);
621    pMga->FbUsableSize = pMga1->FbUsableSize;
622    pMga->FbCursorOffset = pMga1->FbCursorOffset;
623
624    pMga->CurrentLayout.bitsPerPixel = pScrn->bitsPerPixel;
625    pMga->CurrentLayout.depth = pScrn->depth;
626    pMga->CurrentLayout.displayWidth = pScrn->displayWidth;
627    pMga->CurrentLayout.weight.red = pScrn->weight.red;
628    pMga->CurrentLayout.weight.green = pScrn->weight.green;
629    pMga->CurrentLayout.weight.blue = pScrn->weight.blue;
630    pMga->CurrentLayout.mode = pScrn->currentMode;
631
632
633    Monitor2Pos = mgaRightOf;
634    if ((s = xf86GetOptValString(pMga1->Options, OPTION_MONITOR2POS))) {
635        switch(s[0]) {
636            case 'L': case 'l': case 'G': case 'g':
637                Monitor2Pos = mgaLeftOf;
638                break;
639            case 'R': case 'r': case 'D': case 'd':
640                Monitor2Pos = mgaRightOf;
641                break;
642
643            case 'A': case 'a': case 'H': case 'h':
644                Monitor2Pos = mgaAbove;
645                break;
646
647            case 'B': case 'b':
648                Monitor2Pos = mgaBelow;
649                break;
650
651            case 'C': case 'c':
652                Monitor2Pos = mgaClone;
653                break;
654            default:
655                Monitor2Pos = mgaRightOf;
656                break;
657        }
658    }
659
660    /* Fool xf86 into thinking we have huge modes */
661    /* Keep the original values somewhere */
662    pMga1->M1modes = pScrn1->modes;
663    pMga1->M1currentMode = pScrn1->currentMode;
664    /* make a copy of the mode list, so we can modify it. */
665    if ((s = xf86GetOptValString(pMga1->Options, OPTION_METAMODES))) {
666        pScrn1->modes = GenerateModeList(pScrn,s,pMga1->M1modes,pScrn->modes,Monitor2Pos); /*FIXME: free this list*/
667        if(!pScrn1->modes) {
668	    xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "Parse Error reading MetaModes, or No modes left.\n");
669            return FALSE;
670        }
671
672        pScrn1->modes = pScrn1->modes->next;
673        pScrn1->currentMode = pScrn1->modes;
674    } else {
675        xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "MetaModes option missing.\n");
676        return FALSE;
677    }
678    xf86DrvMsg(pScrn1->scrnIndex, X_INFO, "==== End of second screen initialization ====\n");
679    return TRUE;
680}
681
682void
683MGADisplayPowerManagementSetMerged(ScrnInfoPtr pScrn, int PowerManagementMode,
684				  int flags)
685{
686    MGADisplayPowerManagementSet(pScrn,PowerManagementMode,flags);
687    MGADisplayPowerManagementSetCrtc2(pScrn,PowerManagementMode,flags);
688}
689
690typedef struct _region {
691    int x0,x1,y0,y1;
692    } region;
693
694static Bool
695InRegion(int x, int y, region r) {
696    return (r.x0 <= x) && (x < r.x1) && (r.y0 <= y) && (y < r.y1);
697}
698
699
700#define BOUND(test,low,hi) { \
701    if(test < low) test = low; \
702    if(test > hi) test = hi; }
703#define REBOUND(low,hi,test) { \
704    if(test < low) { \
705        hi += test-low; \
706        low = test; } \
707    if(test > hi) { \
708        low += test-hi; \
709        hi = test; } }
710 void
711MGAMergePointerMoved(int scrnIndex, int x, int y)
712{
713  ScrnInfoPtr   pScr = xf86Screens[scrnIndex];
714  MGAPtr        pMga = MGAPTR(pScr);
715  ScrnInfoPtr   pScr2 = pMga->pScrn2;
716
717  region out,in1,in2,f2,f1;
718
719  int deltax,deltay;
720
721  /* for ease. */
722  f1.x0 = pMga->M1frameX0;
723  f1.x1 = pMga->M1frameX1+1;
724  f1.y0 = pMga->M1frameY0;
725  f1.y1 = pMga->M1frameY1+1;
726  f2.x0 = pScr2->frameX0;
727  f2.x1 = pScr2->frameX1+1;
728  f2.y0 = pScr2->frameY0;
729  f2.y1 = pScr2->frameY1+1;
730
731
732  /*specify outer clipping region. crossing this causes all frames to move*/
733  out.x0 = pScr->frameX0;
734  out.x1 = pScr->frameX1+1;
735  out.y0 = pScr->frameY0;
736  out.y1 = pScr->frameY1+1;
737
738  /*
739   * specify inner sliding window. beeing outsize both frames, and inside
740   * the outer cliping window, causes corresponding frame to slide
741   */
742  in1 = out;
743  in2 = out;
744  switch(((MergedDisplayModePtr)pScr->currentMode->Private)->Monitor2Pos) {
745      case mgaLeftOf :
746          in1.x0 = f1.x0;
747          in2.x1 = f2.x1;
748          break;
749      case mgaRightOf :
750          in1.x1 = f1.x1;
751          in2.x0 = f2.x0;
752          break;
753      case mgaBelow :
754          in1.y1 = f1.y1;
755          in2.y0 = f2.y0;
756          break;
757      case mgaAbove :
758          in1.y0 = f1.y0;
759          in2.y1 = f2.y1;
760          break;
761      case mgaClone :
762          break;
763      }
764
765
766    deltay = 0;
767    deltax = 0;
768
769    if(InRegion(x,y,out)) {
770        if( InRegion(x,y, in1) && !InRegion(x,y, f1) ) {
771            REBOUND(f1.x0,f1.x1,x);
772            REBOUND(f1.y0,f1.y1,y);
773            deltax = 1; /*force frame update */
774        }
775        if( InRegion(x,y, in2) && !InRegion(x,y, f2) ) {
776            REBOUND(f2.x0,f2.x1,x);
777            REBOUND(f2.y0,f2.y1,y);
778            deltax = 1; /*force frame update */
779        }
780    }
781    else {  /*outside outer clipping region*/
782        if ( out.x0 > x) {
783            deltax = x - out.x0;
784        }
785        if ( out.x1 < x) {
786            deltax = x - out.x1;
787        }
788        f1.x0 += deltax;
789        f1.x1 += deltax;
790        f2.x0 += deltax;
791        f2.x1 += deltax;
792        pScr->frameX0 += deltax;
793        pScr->frameX1 += deltax;
794
795
796        if ( out.y0 > y) {
797            deltay = y - out.y0;
798        }
799        if ( out.y1 < y) {
800            deltay = y - out.y1;
801        }
802        f1.y0 += deltay;
803        f1.y1 += deltay;
804        f2.y0 += deltay;
805        f2.y1 += deltay;
806        pScr->frameY0 += deltay;
807        pScr->frameY1 += deltay;
808    }
809
810
811    if (deltax != 0 || deltay != 0) {
812        /* back to reality. */
813        pMga->M1frameX0 = f1.x0;
814        pMga->M1frameY0 = f1.y0;
815        pScr2->frameX0 = f2.x0;
816        pScr2->frameY0 = f2.y0;
817
818        /*Adjust Granularity */
819        MGAAdjustGranularity(pScr,&pMga->M1frameX0,&pMga->M1frameY0);
820        MGAAdjustGranularity(pScr,&pScr2->frameX0,&pScr2->frameY0);
821        MGAAdjustGranularity(pScr,&pScr->frameX0,&pScr->frameY0);
822
823        pMga->M1frameX1 = pMga->M1frameX0 + MDMPTR(pScr)->Monitor1->HDisplay -1;
824        pMga->M1frameY1 = pMga->M1frameY0 + MDMPTR(pScr)->Monitor1->VDisplay -1;
825        pScr2->frameX1 = pScr2->frameX0 + MDMPTR(pScr)->Monitor2->HDisplay -1;
826        pScr2->frameY1 = pScr2->frameY0 + MDMPTR(pScr)->Monitor2->VDisplay -1;
827        pScr->frameX1 = pScr->frameX0 + pScr->currentMode->HDisplay -1;
828        pScr->frameY1 = pScr->frameY0 + pScr->currentMode->VDisplay -1;
829
830        MGAAdjustFrame(pScr->scrnIndex, pMga->M1frameX0, pMga->M1frameY0, 0);
831        MGAAdjustFrameCrtc2(pScr->scrnIndex, pScr2->frameX0, pScr2->frameY0, 0);
832    }
833
834/*  if(pMga->PointerMoved)
835      (*pMga->PointerMoved)(scrnIndex, x, y);  FIXME: do I need to call old func?*/
836
837}
838
839
840void
841MGAAdjustMergeFrames(int scrnIndex, int x, int y, int flags) {
842    ScrnInfoPtr pScrn1 = xf86Screens[scrnIndex];
843    MGAPtr pMga = MGAPTR(pScrn1);
844    ScrnInfoPtr pScrn2 = pMga->pScrn2;
845    int VTotal = pScrn1->currentMode->VDisplay;
846    int HTotal = pScrn1->currentMode->HDisplay;
847    int VMax = VTotal;
848    int HMax = HTotal;
849
850    BOUND(x,0,pScrn1->virtualX-HTotal);
851    BOUND(y,0,pScrn1->virtualY-VTotal);
852    switch(MDMPTR(pScrn1)->Monitor2Pos) {
853        case mgaLeftOf:
854            pScrn2->frameX0 = x;
855            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
856            pMga->M1frameX0 = x+MDMPTR(pScrn1)->Monitor2->HDisplay;
857            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
858            break;
859        case mgaRightOf:
860            pMga->M1frameX0 = x;
861            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
862            pScrn2->frameX0 = x+MDMPTR(pScrn1)->Monitor1->HDisplay;
863            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
864            break;
865        case mgaAbove:
866            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
867            pScrn2->frameY0 = y;
868            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
869            pMga->M1frameY0 = y+MDMPTR(pScrn1)->Monitor2->VDisplay;
870            break;
871        case mgaBelow:
872            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
873            pMga->M1frameY0 = y;
874            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
875            pScrn2->frameY0 = y+MDMPTR(pScrn1)->Monitor1->VDisplay;
876            break;
877        case mgaClone:
878            BOUND(pMga->M1frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor1->HDisplay);
879            BOUND(pMga->M1frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor1->VDisplay);
880            BOUND(pScrn2->frameX0,x,x + HMax - MDMPTR(pScrn1)->Monitor2->HDisplay);
881            BOUND(pScrn2->frameY0,y,y + VMax - MDMPTR(pScrn1)->Monitor2->VDisplay);
882            break;
883    }
884    /* sanity checks. Make shure were not out of bounds */
885    BOUND(pMga->M1frameX0,0,pScrn1->virtualX -MDMPTR(pScrn1)->Monitor1->HDisplay);
886    BOUND(pMga->M1frameY0,0,pScrn1->virtualY -MDMPTR(pScrn1)->Monitor1->VDisplay);
887    BOUND(pScrn2->frameX0,0,pScrn2->virtualX -MDMPTR(pScrn1)->Monitor2->HDisplay);
888    BOUND(pScrn2->frameY0,0,pScrn2->virtualY -MDMPTR(pScrn1)->Monitor2->VDisplay);
889
890    pScrn1->frameX0 = x;
891    pScrn1->frameY0 = y;
892
893    /* check granularity */
894    MGAAdjustGranularity(pScrn1,&pMga->M1frameX0,&pMga->M1frameY0);
895    MGAAdjustGranularity(pScrn1,&pScrn2->frameX0,&pScrn2->frameY0);
896    MGAAdjustGranularity(pScrn1,&pScrn1->frameX0,&pScrn1->frameY0);
897
898    /* complete shitty redundant info */
899    pMga->M1frameX1 = pMga->M1frameX0 + MDMPTR(pScrn1)->Monitor1->HDisplay -1;
900    pMga->M1frameY1 = pMga->M1frameY0 + MDMPTR(pScrn1)->Monitor1->VDisplay -1;
901    pScrn2->frameX1 = pScrn2->frameX0 + MDMPTR(pScrn1)->Monitor2->HDisplay -1;
902    pScrn2->frameY1 = pScrn2->frameY0 + MDMPTR(pScrn1)->Monitor2->VDisplay -1;
903    pScrn1->frameX1 = pScrn1->frameX0 + pScrn1->currentMode->HDisplay -1;
904    pScrn1->frameY1 = pScrn1->frameY0 + pScrn1->currentMode->VDisplay -1;
905
906    MGAAdjustFrame(scrnIndex, pMga->M1frameX0, pMga->M1frameY0, flags);
907    MGAAdjustFrameCrtc2(scrnIndex, pScrn2->frameX0, pScrn2->frameY0, flags);
908    return;
909}
910
911Bool
912MGACloseScreenMerged(int scrnIndex, ScreenPtr pScreen) {
913    ScrnInfoPtr pScrn1 = xf86Screens[scrnIndex];
914    MGAPtr pMga = MGAPTR(pScrn1);
915    ScrnInfoPtr pScrn2 = pMga->pScrn2;
916
917    if(pScrn2) {
918        xfree(pScrn2->monitor);
919        pScrn2->monitor = NULL;
920
921        xfree(pScrn2);
922        pMga->pScrn2 = NULL;
923    }
924
925    if(pScrn1->modes) {
926        pScrn1->currentMode = pScrn1->modes;
927        do {
928            DisplayModePtr p = pScrn1->currentMode->next;
929            if(pScrn1->currentMode->Private)
930                xfree(pScrn1->currentMode->Private);
931            xfree(pScrn1->currentMode);
932            pScrn1->currentMode = p;
933        }while( pScrn1->currentMode != pScrn1->modes);
934    }
935
936    pScrn1->currentMode = pMga->M1currentMode;
937    pScrn1->modes = pMga->M1modes;
938
939    return TRUE;
940}
941
942Bool
943MGASaveScreenMerged(ScreenPtr pScreen, int mode)
944{
945    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
946    MGAPtr pMga = MGAPTR(pScrn);
947    BOOL on = xf86IsUnblank(mode);
948    CARD8 reg;
949
950    if (on) {
951/*        SetTimdeSinceLastInputEvent();*/
952
953        /* power on Dac1 */
954        reg = inMGAdac(MGA1064_MISC_CTL);
955        reg |= MGA1064_MISC_CTL_DAC_EN;
956        outMGAdac(MGA1064_MISC_CTL, reg);
957
958        /* power on Dac2 */
959        reg = inMGAdac(MGA1064_PWR_CTL);
960        reg |= MGA1064_PWR_CTL_DAC2_EN;
961        outMGAdac(MGA1064_PWR_CTL, reg);
962    } else {
963        /* power off Dac1 */
964        reg = inMGAdac(MGA1064_MISC_CTL);
965        reg &= ~MGA1064_MISC_CTL_DAC_EN;
966        outMGAdac(MGA1064_MISC_CTL, reg);
967
968        /* power off Dac2 */
969        reg = inMGAdac(MGA1064_PWR_CTL);
970        reg &= ~MGA1064_PWR_CTL_DAC2_EN;
971        outMGAdac(MGA1064_PWR_CTL, reg);
972    }
973
974    return TRUE;
975}
976
977
978