i128dga.c revision a73423d7 
1
2#ifdef HAVE_CONFIG_H
3#include "config.h"
4#endif
5
6#include "xf86.h"
7#include "xf86_OSproc.h"
8#include "xf86Pci.h"
9#include "xf86PciInfo.h"
10#include "i128.h"
11#include "dgaproc.h"
12
13
14static Bool I128_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **,
15					int *, int *, int *);
16static Bool I128_SetMode(ScrnInfoPtr, DGAModePtr);
17static int  I128_GetViewport(ScrnInfoPtr);
18static void I128_SetViewport(ScrnInfoPtr, int, int, int);
19#ifdef HAVE_XAA_H
20static void I128_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
21static void I128_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
22#if 0
23static void I128_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
24					unsigned long);
25#endif
26#endif
27
28static
29DGAFunctionRec I128_DGAFuncs = {
30   I128_OpenFramebuffer,
31   NULL,
32   I128_SetMode,
33   I128_SetViewport,
34   I128_GetViewport,
35   I128EngineDone,
36#ifdef HAVE_XAA_H
37   I128_FillRect,
38   I128_BlitRect,
39#if 0
40   I128_BlitTransRect
41#else
42   NULL
43#endif
44#else
45   NULL, NULL, NULL
46#endif
47};
48
49
50Bool
51I128DGAInit(ScreenPtr pScreen)
52{
53   ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
54   I128Ptr pI128 = I128PTR(pScrn);
55   DGAModePtr modes = NULL, newmodes = NULL, currentMode;
56   DisplayModePtr pMode, firstMode;
57   int Bpp = pScrn->bitsPerPixel >> 3;
58   int num = 0;
59   Bool oneMore;
60
61   pMode = firstMode = pScrn->modes;
62
63   while(pMode) {
64
65	if(0 /*pScrn->displayWidth != pMode->HDisplay*/) {
66	    newmodes = realloc(modes, (num + 2) * sizeof(DGAModeRec));
67	    oneMore = TRUE;
68	} else {
69	    newmodes = realloc(modes, (num + 1) * sizeof(DGAModeRec));
70	    oneMore = FALSE;
71	}
72
73	if(!newmodes) {
74	   free(modes);
75	   return FALSE;
76	}
77	modes = newmodes;
78
79SECOND_PASS:
80
81	currentMode = modes + num;
82	num++;
83
84	currentMode->mode = pMode;
85	currentMode->flags = DGA_CONCURRENT_ACCESS | DGA_PIXMAP_AVAILABLE;
86	currentMode->flags |= DGA_FILL_RECT | DGA_BLIT_RECT;
87	if(pMode->Flags & V_DBLSCAN)
88	   currentMode->flags |= DGA_DOUBLESCAN;
89	if(pMode->Flags & V_INTERLACE)
90	   currentMode->flags |= DGA_INTERLACED;
91	currentMode->byteOrder = pScrn->imageByteOrder;
92	currentMode->depth = pScrn->depth;
93	currentMode->bitsPerPixel = pScrn->bitsPerPixel;
94	currentMode->red_mask = pScrn->mask.red;
95	currentMode->green_mask = pScrn->mask.green;
96	currentMode->blue_mask = pScrn->mask.blue;
97	currentMode->visualClass = (Bpp == 1) ? PseudoColor : TrueColor;
98	currentMode->viewportWidth = pMode->HDisplay;
99	currentMode->viewportHeight = pMode->VDisplay;
100	currentMode->xViewportStep = 1;
101	currentMode->yViewportStep = 1;
102	currentMode->viewportFlags = DGA_FLIP_RETRACE;
103	currentMode->offset = 0;
104	currentMode->address = pI128->MemoryPtr;
105
106	if(oneMore) { /* first one is narrow width */
107	    currentMode->bytesPerScanline = ((pMode->HDisplay * Bpp) + 3) & ~3L;
108	    currentMode->imageWidth = pMode->HDisplay;
109	    currentMode->imageHeight =  pMode->VDisplay;
110	    currentMode->pixmapWidth = currentMode->imageWidth;
111	    currentMode->pixmapHeight = currentMode->imageHeight;
112	    currentMode->maxViewportX = currentMode->imageWidth -
113					currentMode->viewportWidth;
114	    /* this might need to get clamped to some maximum */
115	    currentMode->maxViewportY = currentMode->imageHeight -
116					currentMode->viewportHeight;
117	    oneMore = FALSE;
118	    goto SECOND_PASS;
119	} else {
120	    currentMode->bytesPerScanline =
121			((pScrn->displayWidth * Bpp) + 3) & ~3L;
122	    currentMode->imageWidth = pScrn->displayWidth;
123	    currentMode->imageHeight =  pMode->VDisplay;
124	    currentMode->pixmapWidth = currentMode->imageWidth;
125	    currentMode->pixmapHeight = currentMode->imageHeight;
126	    currentMode->maxViewportX = currentMode->imageWidth -
127					currentMode->viewportWidth;
128	    /* this might need to get clamped to some maximum */
129	    currentMode->maxViewportY = currentMode->imageHeight -
130					currentMode->viewportHeight;
131	}
132
133	pMode = pMode->next;
134	if(pMode == firstMode)
135	   break;
136   }
137
138   pI128->numDGAModes = num;
139   pI128->DGAModes = modes;
140
141    return DGAInit(pScreen, &I128_DGAFuncs, modes, num);
142}
143
144
145static Bool
146I128_SetMode(
147   ScrnInfoPtr pScrn,
148   DGAModePtr pMode
149){
150   static int OldDisplayWidth[MAXSCREENS];
151   int index = pScrn->pScreen->myNum;
152
153   I128Ptr pI128 = I128PTR(pScrn);
154
155   if(!pMode) { /* restore the original mode */
156	/* put the ScreenParameters back */
157
158	pScrn->displayWidth = OldDisplayWidth[index];
159
160        I128SwitchMode(SWITCH_MODE_ARGS(pScrn, pScrn->currentMode));
161	pI128->DGAactive = FALSE;
162   } else {
163	if(!pI128->DGAactive) {  /* save the old parameters */
164	    OldDisplayWidth[index] = pScrn->displayWidth;
165
166	    pI128->DGAactive = TRUE;
167	}
168
169	pScrn->displayWidth = pMode->bytesPerScanline /
170			      (pMode->bitsPerPixel >> 3);
171
172        I128SwitchMode(SWITCH_MODE_ARGS(pScrn, pMode->mode));
173   }
174
175   return TRUE;
176}
177
178
179
180static int
181I128_GetViewport(
182  ScrnInfoPtr pScrn
183){
184    I128Ptr pI128 = I128PTR(pScrn);
185
186    return pI128->DGAViewportStatus;
187}
188
189static void
190I128_SetViewport(
191   ScrnInfoPtr pScrn,
192   int x, int y,
193   int flags
194){
195   I128Ptr pI128 = I128PTR(pScrn);
196
197   I128AdjustFrame(ADJUST_FRAME_ARGS(pScrn, x, y));
198   pI128->DGAViewportStatus = 0;  /* I128AdjustFrame loops until finished */
199}
200
201#ifdef HAVE_XAA_H
202static void
203I128_FillRect (
204   ScrnInfoPtr pScrn,
205   int x, int y, int w, int h,
206   unsigned long color
207){
208    I128Ptr pI128 = I128PTR(pScrn);
209
210    if(pI128->XaaInfoRec) {
211	(*pI128->XaaInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
212	(*pI128->XaaInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
213	SET_SYNC_FLAG(pI128->XaaInfoRec);
214    }
215}
216
217static void
218I128_BlitRect(
219   ScrnInfoPtr pScrn,
220   int srcx, int srcy,
221   int w, int h,
222   int dstx, int dsty
223){
224    I128Ptr pI128 = I128PTR(pScrn);
225
226    if(pI128->XaaInfoRec) {
227	int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
228	int ydir = (srcy < dsty) ? -1 : 1;
229
230	(*pI128->XaaInfoRec->SetupForScreenToScreenCopy)(
231		pScrn, xdir, ydir, GXcopy, ~0, -1);
232	(*pI128->XaaInfoRec->SubsequentScreenToScreenCopy)(
233		pScrn, srcx, srcy, dstx, dsty, w, h);
234	SET_SYNC_FLAG(pI128->XaaInfoRec);
235    }
236}
237
238#if 0
239static void
240I128_BlitTransRect(
241   ScrnInfoPtr pScrn,
242   int srcx, int srcy,
243   int w, int h,
244   int dstx, int dsty,
245   unsigned long color
246){
247    I128Ptr pI128 = I128PTR(pScrn);
248
249    if(pI128->XaaInfoRec) {
250	int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
251	int ydir = (srcy < dsty) ? -1 : 1;
252
253	(*pI128->XaaInfoRec->SetupForScreenToScreenCopy)(
254		pScrn, xdir, ydir, GXcopy, ~0, color);
255	(*pI128->XaaInfoRec->SubsequentScreenToScreenCopy)(
256		pScrn, srcx, srcy, dstx, dsty, w, h);
257	SET_SYNC_FLAG(pI128->XaaInfoRec);
258    }
259}
260#endif
261#endif
262static Bool
263I128_OpenFramebuffer(
264   ScrnInfoPtr pScrn,
265   char **name,
266   unsigned char **mem,
267   int *size,
268   int *offset,
269   int *flags
270){
271    I128Ptr pI128 = I128PTR(pScrn);
272    unsigned long FbAddress = PCI_REGION_BASE(pI128->PciInfo, 0, REGION_MEM) & 0xFFC00000;
273
274    *name = NULL; 		/* no special device */
275    *mem = (unsigned char*)FbAddress;
276    *size = pI128->MemorySize*1024;
277    *offset = 0;
278    *flags = DGA_NEED_ROOT;
279
280    return TRUE;
281}
282