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[people/ms/u-boot.git] / drivers / video / smiLynxEM.c
1 /*
2 * (C) Copyright 1997-2002 ELTEC Elektronik AG
3 * Frank Gottschling <fgottschling@eltec.de>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24 /*
25 * smiLynxEM.c
26 *
27 * Silicon Motion graphic interface for sm810/sm710/sm712 accelerator
28 *
29 * modification history
30 * --------------------
31 * 04-18-2002 Rewritten for U-Boot <fgottschling@eltec.de>.
32 *
33 * 18-03-2004 - Unify videomodes handling with the ct69000
34 * - The video output can be set via the variable "videoout"
35 * in the environment.
36 * videoout=1 output on LCD
37 * videoout=2 output on CRT (default value)
38 * <p.aubert@staubli.com>
39 */
40
41 #include <common.h>
42
43 #include <pci.h>
44 #include <video_fb.h>
45 #include "videomodes.h"
46 /*
47 * Export Graphic Device
48 */
49 GraphicDevice smi;
50
51 /*
52 * SMI 710/712 have 4MB internal RAM; SMI 810 2MB internal + 2MB external
53 */
54 #define VIDEO_MEM_SIZE 0x400000
55
56
57 /*
58 * ISA mapped regs
59 */
60 #define SMI_INDX_C4 (pGD->isaBase + 0x03c4) /* index reg */
61 #define SMI_DATA_C5 (pGD->isaBase + 0x03c5) /* data reg */
62 #define SMI_INDX_D4 (pGD->isaBase + 0x03d4) /* index reg */
63 #define SMI_DATA_D5 (pGD->isaBase + 0x03d5) /* data reg */
64 #define SMI_ISR1 (pGD->isaBase + 0x03ca)
65 #define SMI_INDX_CE (pGD->isaBase + 0x03ce) /* index reg */
66 #define SMI_DATA_CF (pGD->isaBase + 0x03cf) /* data reg */
67 #define SMI_LOCK_REG (pGD->isaBase + 0x03c3) /* unlock/lock ext crt reg */
68 #define SMI_MISC_REG (pGD->isaBase + 0x03c2) /* misc reg */
69 #define SMI_LUT_MASK (pGD->isaBase + 0x03c6) /* lut mask reg */
70 #define SMI_LUT_START (pGD->isaBase + 0x03c8) /* lut start index */
71 #define SMI_LUT_RGB (pGD->isaBase + 0x03c9) /* lut colors auto incr.*/
72 #define SMI_INDX_ATTR (pGD->isaBase + 0x03c0) /* attributes index reg */
73
74 /*
75 * Video processor control
76 */
77 typedef struct {
78 unsigned int control;
79 unsigned int colorKey;
80 unsigned int colorKeyMask;
81 unsigned int start;
82 unsigned short offset;
83 unsigned short width;
84 unsigned int fifoPrio;
85 unsigned int fifoERL;
86 unsigned int YUVtoRGB;
87 } SmiVideoProc;
88
89 /*
90 * Video window control
91 */
92 typedef struct {
93 unsigned short top;
94 unsigned short left;
95 unsigned short bottom;
96 unsigned short right;
97 unsigned int srcStart;
98 unsigned short width;
99 unsigned short offset;
100 unsigned char hStretch;
101 unsigned char vStretch;
102 } SmiVideoWin;
103
104 /*
105 * Capture port control
106 */
107 typedef struct {
108 unsigned int control;
109 unsigned short topClip;
110 unsigned short leftClip;
111 unsigned short srcHeight;
112 unsigned short srcWidth;
113 unsigned int srcBufStart1;
114 unsigned int srcBufStart2;
115 unsigned short srcOffset;
116 unsigned short fifoControl;
117 } SmiCapturePort;
118
119
120 /*
121 * Register values for common video modes
122 */
123 static char SMI_SCR[] = {
124 /* all modes */
125 0x10, 0xff, 0x11, 0xff, 0x12, 0xff, 0x13, 0xff, 0x15, 0x90,
126 0x17, 0x20, 0x18, 0xb1, 0x19, 0x00,
127 };
128 static char SMI_EXT_CRT[] = {
129 0x31, 0x00, 0x32, 0x00, 0x33, 0x00, 0x34, 0x00, 0x35, 0x00,
130 0x36, 0x00, 0x3b, 0x00, 0x3c, 0x00, 0x3d, 0x00, 0x3e, 0x00, 0x3f, 0x00,
131 };
132 static char SMI_ATTR [] = {
133 0x00, 0x00, 0x01, 0x01, 0x02, 0x02, 0x03, 0x03, 0x04, 0x04, 0x05, 0x05,
134 0x06, 0x06, 0x07, 0x07, 0x08, 0x08, 0x09, 0x09, 0x0a, 0x0a, 0x0b, 0x0b,
135 0x0c, 0x0c, 0x0d, 0x0d, 0x0e, 0x0e, 0x0f, 0x0f, 0x10, 0x41, 0x11, 0x00,
136 0x12, 0x0f, 0x13, 0x00, 0x14, 0x00,
137 };
138 static char SMI_GCR[18] = {
139 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x40,
140 0x06, 0x05, 0x07, 0x0f, 0x08, 0xff,
141 };
142 static char SMI_SEQR[] = {
143 0x00, 0x00, 0x01, 0x01, 0x02, 0x0f, 0x03, 0x03, 0x04, 0x0e, 0x00, 0x03,
144 };
145 static char SMI_PCR [] = {
146 0x20, 0x04, 0x21, 0x30, 0x22, 0x00, 0x23, 0x00, 0x24, 0x00,
147 };
148 static char SMI_MCR[] = {
149 0x60, 0x01, 0x61, 0x00,
150 #ifdef CONFIG_HMI1001
151 0x62, 0x74, /* Memory type is not configured by pins on HMI1001 */
152 #endif
153 };
154
155 static char SMI_HCR[] = {
156 0x80, 0xff, 0x81, 0x07, 0x82, 0x00, 0x83, 0xff, 0x84, 0xff, 0x88, 0x00,
157 0x89, 0x02, 0x8a, 0x80, 0x8b, 0x01, 0x8c, 0xff, 0x8d, 0x00,
158 };
159
160
161 /*******************************************************************************
162 *
163 * Write SMI ISA register
164 */
165 static void smiWrite (unsigned short index, char reg, char val)
166 {
167 register GraphicDevice *pGD = (GraphicDevice *)&smi;
168
169 out8 ((pGD->isaBase + index), reg);
170 out8 ((pGD->isaBase + index + 1), val);
171 }
172
173 /*******************************************************************************
174 *
175 * Write a table of SMI ISA register
176 */
177 static void smiLoadRegs (
178 unsigned int iReg,
179 unsigned int dReg,
180 char *regTab,
181 unsigned int tabSize
182 )
183 {
184 register GraphicDevice *pGD = (GraphicDevice *)&smi;
185 register int i;
186
187 for (i=0; i<tabSize; i+=2) {
188 if (iReg == SMI_INDX_ATTR) {
189 /* Reset the Flip Flop */
190 in8 (SMI_ISR1);
191 out8 (iReg, regTab[i]);
192 out8 (iReg, regTab[i+1]);
193 } else {
194 out8 (iReg, regTab[i]);
195 out8 (dReg, regTab[i+1]);
196 }
197 }
198 }
199
200 /*******************************************************************************
201 *
202 * Init capture port registers
203 */
204 static void smiInitCapturePort (void)
205 {
206 SmiCapturePort smiCP = { 0x01400600, 0x30, 0x40, 480, 640, 0, 0, 2560, 6 };
207 register GraphicDevice *pGD = (GraphicDevice *)&smi;
208 register SmiCapturePort *pCP = (SmiCapturePort *)&smiCP;
209
210 out32r ((pGD->cprBase + 0x0004), ((pCP->topClip<<16) | pCP->leftClip));
211 out32r ((pGD->cprBase + 0x0008), ((pCP->srcHeight<<16) | pCP->srcWidth));
212 out32r ((pGD->cprBase + 0x000c), pCP->srcBufStart1/8);
213 out32r ((pGD->cprBase + 0x0010), pCP->srcBufStart2/8);
214 out32r ((pGD->cprBase + 0x0014), pCP->srcOffset/8);
215 out32r ((pGD->cprBase + 0x0018), pCP->fifoControl);
216 out32r ((pGD->cprBase + 0x0000), pCP->control);
217 }
218
219
220 /*******************************************************************************
221 *
222 * Init video processor registers
223 */
224 static void smiInitVideoProcessor (void)
225 {
226 SmiVideoProc smiVP = { 0x100000, 0, 0, 0, 0, 1600, 0x1200543, 4, 0xededed };
227 SmiVideoWin smiVW = { 0, 0, 599, 799, 0, 1600, 0, 0, 0 };
228 register GraphicDevice *pGD = (GraphicDevice *)&smi;
229 register SmiVideoProc *pVP = (SmiVideoProc *)&smiVP;
230 register SmiVideoWin *pVWin = (SmiVideoWin *)&smiVW;
231
232 pVP->width = pGD->plnSizeX * pGD->gdfBytesPP;
233 pVP->control |= pGD->gdfIndex << 16;
234 pVWin->bottom = pGD->winSizeY - 1;
235 pVWin->right = pGD->winSizeX - 1;
236 pVWin->width = pVP->width;
237
238 /* color key */
239 out32r ((pGD->vprBase + 0x0004), pVP->colorKey);
240
241 /* color key mask */
242 out32r ((pGD->vprBase + 0x0008), pVP->colorKeyMask);
243
244 /* data src start adrs */
245 out32r ((pGD->vprBase + 0x000c), pVP->start / 8);
246
247 /* data width and offset */
248 out32r ((pGD->vprBase + 0x0010),
249 ((pVP->offset / 8 * pGD->gdfBytesPP) << 16) |
250 (pGD->plnSizeX / 8 * pGD->gdfBytesPP));
251
252 /* video window 1 */
253 out32r ((pGD->vprBase + 0x0014),
254 ((pVWin->top << 16) | pVWin->left));
255
256 out32r ((pGD->vprBase + 0x0018),
257 ((pVWin->bottom << 16) | pVWin->right));
258
259 out32r ((pGD->vprBase + 0x001c), pVWin->srcStart / 8);
260
261 out32r ((pGD->vprBase + 0x0020),
262 (((pVWin->offset / 8) << 16) | (pVWin->width / 8)));
263
264 out32r ((pGD->vprBase + 0x0024),
265 (((pVWin->hStretch) << 8) | pVWin->vStretch));
266
267 /* video window 2 */
268 out32r ((pGD->vprBase + 0x0028),
269 ((pVWin->top << 16) | pVWin->left));
270
271 out32r ((pGD->vprBase + 0x002c),
272 ((pVWin->bottom << 16) | pVWin->right));
273
274 out32r ((pGD->vprBase + 0x0030),
275 pVWin->srcStart / 8);
276
277 out32r ((pGD->vprBase + 0x0034),
278 (((pVWin->offset / 8) << 16) | (pVWin->width / 8)));
279
280 out32r ((pGD->vprBase + 0x0038),
281 (((pVWin->hStretch) << 8) | pVWin->vStretch));
282
283 /* fifo prio control */
284 out32r ((pGD->vprBase + 0x0054), pVP->fifoPrio);
285
286 /* fifo empty request levell */
287 out32r ((pGD->vprBase + 0x0058), pVP->fifoERL);
288
289 /* conversion constant */
290 out32r ((pGD->vprBase + 0x005c), pVP->YUVtoRGB);
291
292 /* vpr control word */
293 out32r ((pGD->vprBase + 0x0000), pVP->control);
294 }
295
296 /******************************************************************************
297 *
298 * Init drawing engine registers
299 */
300 static void smiInitDrawingEngine (void)
301 {
302 GraphicDevice *pGD = (GraphicDevice *)&smi;
303 unsigned int val;
304
305 /* don't start now */
306 out32r ((pGD->dprBase + 0x000c), 0x000f0000);
307
308 /* set rop2 to copypen */
309 val = 0xffff3ff0 & in32r ((pGD->dprBase + 0x000c));
310 out32r ((pGD->dprBase + 0x000c), (val | 0x8000 | 0x0c));
311
312 /* set clip rect */
313 out32r ((pGD->dprBase + 0x002c), 0);
314 out32r ((pGD->dprBase + 0x0030),
315 ((pGD->winSizeY<<16) | pGD->winSizeX * pGD->gdfBytesPP ));
316
317 /* src row pitch */
318 val = 0xffff0000 & (in32r ((pGD->dprBase + 0x0010)));
319 out32r ((pGD->dprBase + 0x0010),
320 (val | pGD->plnSizeX * pGD->gdfBytesPP));
321
322 /* dst row pitch */
323 val = 0x0000ffff & (in32r ((pGD->dprBase + 0x0010)));
324 out32r ((pGD->dprBase + 0x0010),
325 (((pGD->plnSizeX * pGD->gdfBytesPP)<<16) | val));
326
327 /* window width src/dst */
328 out32r ((pGD->dprBase + 0x003c),
329 (((pGD->plnSizeX * pGD->gdfBytesPP & 0x0fff)<<16) |
330 (pGD->plnSizeX * pGD->gdfBytesPP & 0x0fff)));
331 out16r ((pGD->dprBase + 0x001e), 0x0000);
332
333 /* src base adrs */
334 out32r ((pGD->dprBase + 0x0040),
335 (((pGD->frameAdrs/8) & 0x000fffff)));
336
337 /* dst base adrs */
338 out32r ((pGD->dprBase + 0x0044),
339 (((pGD->frameAdrs/8) & 0x000fffff)));
340
341 /* foreground color */
342 out32r ((pGD->dprBase + 0x0014), pGD->fg);
343
344 /* background color */
345 out32r ((pGD->dprBase + 0x0018), pGD->bg);
346
347 /* xcolor */
348 out32r ((pGD->dprBase + 0x0020), 0x00ffffff);
349
350 /* xcolor mask */
351 out32r ((pGD->dprBase + 0x0024), 0x00ffffff);
352
353 /* bit mask */
354 out32r ((pGD->dprBase + 0x0028), 0x00ffffff);
355
356 /* load mono pattern */
357 out32r ((pGD->dprBase + 0x0034), 0);
358 out32r ((pGD->dprBase + 0x0038), 0);
359 }
360
361 static struct pci_device_id supported[] = {
362 { PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_710 },
363 { PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_712 },
364 { PCI_VENDOR_ID_SMI, PCI_DEVICE_ID_SMI_810 },
365 { }
366 };
367
368 /*****************************************************************************/
369 static void smiLoadMsr (struct ctfb_res_modes *mode)
370 {
371 unsigned char h_synch_high, v_synch_high;
372 register GraphicDevice *pGD = (GraphicDevice *)&smi;
373
374 h_synch_high = (mode->sync & FB_SYNC_HOR_HIGH_ACT) ? 0 : 0x40; /* horizontal Synch High active */
375 v_synch_high = (mode->sync & FB_SYNC_VERT_HIGH_ACT) ? 0 : 0x80; /* vertical Synch High active */
376 out8 (SMI_MISC_REG, (h_synch_high | v_synch_high | 0x29));
377 /* upper64K==0x20, CLC2select==0x08, RAMenable==0x02!(todo), CGA==0x01
378 * Selects the upper 64KB page.Bit5=1
379 * CLK2 (left reserved in standard VGA) Bit3|2=1|0
380 * Disables CPU access to frame buffer. Bit1=0
381 * Sets the I/O address decode for ST01, FCR, and all CR registers
382 * to the 3Dx I/O address range (CGA emulation). Bit0=1
383 */
384 }
385 /*****************************************************************************/
386 static void smiLoadCrt (struct ctfb_res_modes *var, int bits_per_pixel)
387 {
388 unsigned char cr[0x7a];
389 int i;
390 unsigned int hd, hs, he, ht, hbs, hbe; /* Horizontal. */
391 unsigned int vd, vs, ve, vt, vbs, vbe; /* vertical */
392 unsigned int bpp, wd, dblscan, interlaced;
393
394 const int LineCompare = 0x3ff;
395 unsigned int TextScanLines = 1; /* this is in fact a vertical zoom factor */
396 register GraphicDevice *pGD = (GraphicDevice *)&smi;
397
398 /* Horizontal */
399 hd = (var->xres) / 8; /* HDisp. */
400 hs = (var->xres + var->right_margin) / 8; /* HsStrt */
401 he = (var->xres + var->right_margin + var->hsync_len) / 8; /* HsEnd */
402 ht = (var->left_margin + var->xres + var->right_margin + var->hsync_len) / 8; /* HTotal */
403 /* Blank */
404 hbs = hd;
405 hbe = 0; /* Blank end at 0 */
406
407 /* Vertical */
408 vd = var->yres; /* VDisplay */
409 vs = var->yres + var->lower_margin; /* VSyncStart */
410 ve = var->yres + var->lower_margin + var->vsync_len; /* VSyncEnd */
411 vt = var->upper_margin + var->yres + var->lower_margin + var->vsync_len; /* VTotal */
412 vbs = vd;
413 vbe = 0;
414
415 bpp = bits_per_pixel;
416 dblscan = (var->vmode & FB_VMODE_DOUBLE) ? 1 : 0;
417 interlaced = var->vmode & FB_VMODE_INTERLACED;
418
419
420 if (bpp == 15)
421 bpp = 16;
422 wd = var->xres * bpp / 64; /* double words per line */
423 if (interlaced) { /* we divide all vertical timings, exept vd */
424 vs >>= 1;
425 vbs >>= 1;
426 ve >>= 1;
427 vt >>= 1;
428 }
429
430 memset (cr, 0, sizeof (cr));
431 cr[0x00] = ht - 5;
432 cr[0x01] = hd - 1;
433 cr[0x02] = hbs - 1;
434 cr[0x03] = (hbe & 0x1F);
435 cr[0x04] = hs;
436 cr[0x05] = ((hbe & 0x20) << 2) | (he & 0x1f);
437
438 cr[0x06] = (vt - 2) & 0xFF;
439 cr[0x07] = (((vt - 2) & 0x100) >> 8)
440 | (((vd - 1) & 0x100) >> 7)
441 | ((vs & 0x100) >> 6)
442 | (((vbs - 1) & 0x100) >> 5)
443 | ((LineCompare & 0x100) >> 4)
444 | (((vt - 2) & 0x200) >> 4)
445 | (((vd - 1) & 0x200) >> 3)
446 | ((vs & 0x200) >> 2);
447
448 cr[0x30] = ((vt - 2) & 0x400) >> 7
449 | (((vd - 1) & 0x400) >> 8)
450 | (((vbs - 1) & 0x400) >> 9)
451 | ((vs & 0x400) >> 10)
452 | (interlaced) ? 0x80 : 0;
453
454
455 cr[0x08] = 0x00;
456 cr[0x09] = (dblscan << 7)
457 | ((LineCompare & 0x200) >> 3)
458 | (((vbs - 1) & 0x200) >> 4)
459 | (TextScanLines - 1);
460
461 cr[0x10] = vs & 0xff; /* VSyncPulseStart */
462 cr[0x11] = (ve & 0x0f);
463 cr[0x12] = (vd - 1) & 0xff; /* LineCount */
464 cr[0x13] = wd & 0xff;
465 cr[0x14] = 0x40;
466 cr[0x15] = (vbs - 1) & 0xff;
467 cr[0x16] = vbe & 0xff;
468 cr[0x17] = 0xe3; /* but it does not work */
469 cr[0x18] = 0xff & LineCompare;
470 cr[0x22] = 0x00; /* todo? */
471
472
473 /* now set the registers */
474 for (i = 0; i <= 0x18; i++) { /*CR00 .. CR18 */
475 smiWrite (SMI_INDX_D4, i, cr[i]);
476 }
477 i = 0x22; /*CR22 */
478 smiWrite (SMI_INDX_D4, i, cr[i]);
479 i = 0x30; /*CR30 */
480 smiWrite (SMI_INDX_D4, i, cr[i]);
481 }
482
483 /*****************************************************************************/
484 #define REF_FREQ 14318180
485 #define PMIN 1
486 #define PMAX 255
487 #define QMIN 1
488 #define QMAX 63
489
490 static unsigned int FindPQ (unsigned int freq, unsigned int *pp, unsigned int *pq)
491 {
492 unsigned int n = QMIN, m = 0;
493 long long int L = 0, P = freq, Q = REF_FREQ, H = P >> 1;
494 long long int D = 0x7ffffffffffffffLL;
495
496 for (n = QMIN; n <= QMAX; n++) {
497 m = PMIN; /* p/q ~ freq/ref -> p*ref-freq*q ~ 0 */
498 L = P * n - m * Q;
499 while (L > 0 && m < PMAX) {
500 L -= REF_FREQ; /* difference is greater as 0 subtract fref */
501 m++; /* and increment m */
502 }
503 /* difference is less or equal than 0 or m > maximum */
504 if (m > PMAX)
505 break; /* no solution: if we increase n we get the same situation */
506 /* L is <= 0 now */
507 if (-L > H && m > PMIN) { /* if difference > the half fref */
508 L += REF_FREQ; /* we take the situation before */
509 m--; /* because its closer to 0 */
510 }
511 L = (L < 0) ? -L : +L; /* absolute value */
512 if (D < L) /* if last difference was better take next n */
513 continue;
514 D = L;
515 *pp = m;
516 *pq = n; /* keep improved data */
517 if (D == 0)
518 break; /* best result we can get */
519 }
520 return (unsigned int) (0xffffffff & D);
521 }
522
523 /*****************************************************************************/
524 static void smiLoadCcr (struct ctfb_res_modes *var, unsigned short device_id)
525 {
526 unsigned int p = 0;
527 unsigned int q = 0;
528 long long freq;
529 register GraphicDevice *pGD = (GraphicDevice *)&smi;
530
531 smiWrite (SMI_INDX_C4, 0x65, 0);
532 smiWrite (SMI_INDX_C4, 0x66, 0);
533 smiWrite (SMI_INDX_C4, 0x68, 0x50);
534 if (device_id == PCI_DEVICE_ID_SMI_810) {
535 smiWrite (SMI_INDX_C4, 0x69, 0x3);
536 } else {
537 smiWrite (SMI_INDX_C4, 0x69, 0x0);
538 }
539
540 /* Memory clock */
541 switch (device_id) {
542 case PCI_DEVICE_ID_SMI_710 :
543 smiWrite (SMI_INDX_C4, 0x6a, 0x75);
544 break;
545 case PCI_DEVICE_ID_SMI_712 :
546 smiWrite (SMI_INDX_C4, 0x6a, 0x80);
547 break;
548 default :
549 smiWrite (SMI_INDX_C4, 0x6a, 0x53);
550 break;
551 }
552 smiWrite (SMI_INDX_C4, 0x6b, 0x15);
553
554 /* VCLK */
555 freq = 1000000000000LL / var -> pixclock;
556
557 FindPQ ((unsigned int)freq, &p, &q);
558
559 smiWrite (SMI_INDX_C4, 0x6c, p);
560 smiWrite (SMI_INDX_C4, 0x6d, q);
561
562 }
563
564 /*******************************************************************************
565 *
566 * Init video chip with common Linux graphic modes (lilo)
567 */
568 void *video_hw_init (void)
569 {
570 GraphicDevice *pGD = (GraphicDevice *)&smi;
571 unsigned short device_id;
572 pci_dev_t devbusfn;
573 int videomode;
574 unsigned long t1, hsynch, vsynch;
575 unsigned int pci_mem_base, *vm;
576 char *penv;
577 int tmp, i, bits_per_pixel;
578 struct ctfb_res_modes *res_mode;
579 struct ctfb_res_modes var_mode;
580 unsigned char videoout;
581
582 /* Search for video chip */
583 printf("Video: ");
584
585 if ((devbusfn = pci_find_devices(supported, 0)) < 0)
586 {
587 printf ("Controller not found !\n");
588 return (NULL);
589 }
590
591 /* PCI setup */
592 pci_write_config_dword (devbusfn, PCI_COMMAND, (PCI_COMMAND_MEMORY | PCI_COMMAND_IO));
593 pci_read_config_word (devbusfn, PCI_DEVICE_ID, &device_id);
594 pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0, &pci_mem_base);
595 pci_mem_base = pci_mem_to_phys (devbusfn, pci_mem_base);
596
597 tmp = 0;
598
599 videomode = CONFIG_SYS_DEFAULT_VIDEO_MODE;
600 /* get video mode via environment */
601 if ((penv = getenv ("videomode")) != NULL) {
602 /* deceide if it is a string */
603 if (penv[0] <= '9') {
604 videomode = (int) simple_strtoul (penv, NULL, 16);
605 tmp = 1;
606 }
607 } else {
608 tmp = 1;
609 }
610 if (tmp) {
611 /* parameter are vesa modes */
612 /* search params */
613 for (i = 0; i < VESA_MODES_COUNT; i++) {
614 if (vesa_modes[i].vesanr == videomode)
615 break;
616 }
617 if (i == VESA_MODES_COUNT) {
618 printf ("no VESA Mode found, switching to mode 0x%x ", CONFIG_SYS_DEFAULT_VIDEO_MODE);
619 i = 0;
620 }
621 res_mode =
622 (struct ctfb_res_modes *) &res_mode_init[vesa_modes[i].
623 resindex];
624 bits_per_pixel = vesa_modes[i].bits_per_pixel;
625 } else {
626
627 res_mode = (struct ctfb_res_modes *) &var_mode;
628 bits_per_pixel = video_get_params (res_mode, penv);
629 }
630
631 /* calculate hsynch and vsynch freq (info only) */
632 t1 = (res_mode->left_margin + res_mode->xres +
633 res_mode->right_margin + res_mode->hsync_len) / 8;
634 t1 *= 8;
635 t1 *= res_mode->pixclock;
636 t1 /= 1000;
637 hsynch = 1000000000L / t1;
638 t1 *=
639 (res_mode->upper_margin + res_mode->yres +
640 res_mode->lower_margin + res_mode->vsync_len);
641 t1 /= 1000;
642 vsynch = 1000000000L / t1;
643
644 /* fill in Graphic device struct */
645 sprintf (pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
646 res_mode->yres, bits_per_pixel, (hsynch / 1000),
647 (vsynch / 1000));
648 printf ("%s\n", pGD->modeIdent);
649 pGD->winSizeX = res_mode->xres;
650 pGD->winSizeY = res_mode->yres;
651 pGD->plnSizeX = res_mode->xres;
652 pGD->plnSizeY = res_mode->yres;
653 switch (bits_per_pixel) {
654 case 8:
655 pGD->gdfBytesPP = 1;
656 pGD->gdfIndex = GDF__8BIT_INDEX;
657 break;
658 case 15:
659 pGD->gdfBytesPP = 2;
660 pGD->gdfIndex = GDF_15BIT_555RGB;
661 break;
662 case 16:
663 pGD->gdfBytesPP = 2;
664 pGD->gdfIndex = GDF_16BIT_565RGB;
665 break;
666 case 24:
667 pGD->gdfBytesPP = 3;
668 pGD->gdfIndex = GDF_24BIT_888RGB;
669 break;
670 }
671
672 pGD->isaBase = CONFIG_SYS_ISA_IO;
673 pGD->pciBase = pci_mem_base;
674 pGD->dprBase = (pci_mem_base + 0x400000 + 0x8000);
675 pGD->vprBase = (pci_mem_base + 0x400000 + 0xc000);
676 pGD->cprBase = (pci_mem_base + 0x400000 + 0xe000);
677 pGD->frameAdrs = pci_mem_base;
678 pGD->memSize = VIDEO_MEM_SIZE;
679
680 /* Set up hardware : select color mode,
681 set Register base to isa 3dx for 3?x regs*/
682 out8 (SMI_MISC_REG, 0x01);
683
684 /* Turn off display */
685 smiWrite (SMI_INDX_C4, 0x01, 0x20);
686
687 /* Unlock ext. crt regs */
688 out8 (SMI_LOCK_REG, 0x40);
689
690 /* Unlock crt regs 0-7 */
691 smiWrite (SMI_INDX_D4, 0x11, 0x0e);
692
693 /* Sytem Control Register */
694 smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_SCR, sizeof(SMI_SCR));
695
696 /* extented CRT Register */
697 smiLoadRegs (SMI_INDX_D4, SMI_DATA_D5, SMI_EXT_CRT, sizeof(SMI_EXT_CRT));
698
699 /* Attributes controller registers */
700 smiLoadRegs (SMI_INDX_ATTR, SMI_INDX_ATTR, SMI_ATTR, sizeof(SMI_ATTR));
701
702 /* Graphics Controller Register */
703 smiLoadRegs (SMI_INDX_CE, SMI_DATA_CF, SMI_GCR, sizeof(SMI_GCR));
704
705 /* Sequencer Register */
706 smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_SEQR, sizeof(SMI_SEQR));
707
708 /* Power Control Register */
709 smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_PCR, sizeof(SMI_PCR));
710
711 /* Memory Control Register */
712 /* Register MSR62 is a power on configurable register. We don't */
713 /* modify it */
714 smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_MCR, sizeof(SMI_MCR));
715
716 /* Set misc output register */
717 smiLoadMsr (res_mode);
718
719 /* Set CRT and Clock control registers */
720 smiLoadCrt (res_mode, bits_per_pixel);
721
722 smiLoadCcr (res_mode, device_id);
723
724 /* Hardware Cusor Register */
725 smiLoadRegs (SMI_INDX_C4, SMI_DATA_C5, SMI_HCR, sizeof(SMI_HCR));
726
727 /* Enable Display */
728 videoout = 2; /* Default output is CRT */
729 if ((penv = getenv ("videoout")) != NULL) {
730 /* deceide if it is a string */
731 videoout = (int) simple_strtoul (penv, NULL, 16);
732 }
733 smiWrite (SMI_INDX_C4, 0x31, videoout);
734
735 /* Video processor default setup */
736 smiInitVideoProcessor ();
737
738 /* Capture port default setup */
739 smiInitCapturePort ();
740
741 /* Drawing engine default setup */
742 smiInitDrawingEngine ();
743
744 /* Turn on display */
745 smiWrite (0x3c4, 0x01, 0x01);
746
747 /* Clear video memory */
748 i = pGD->memSize/4;
749 vm = (unsigned int *)pGD->pciBase;
750 while(i--)
751 *vm++ = 0;
752 return ((void*)&smi);
753 }
754
755 /*******************************************************************************
756 *
757 * Drawing engine fill on screen region
758 */
759 void video_hw_rectfill (
760 unsigned int bpp, /* bytes per pixel */
761 unsigned int dst_x, /* dest pos x */
762 unsigned int dst_y, /* dest pos y */
763 unsigned int dim_x, /* frame width */
764 unsigned int dim_y, /* frame height */
765 unsigned int color /* fill color */
766 )
767 {
768 register GraphicDevice *pGD = (GraphicDevice *)&smi;
769 register unsigned int control;
770
771 dim_x *= bpp;
772
773 out32r ((pGD->dprBase + 0x0014), color);
774 out32r ((pGD->dprBase + 0x0004), ((dst_x<<16) | dst_y));
775 out32r ((pGD->dprBase + 0x0008), ((dim_x<<16) | dim_y));
776
777 control = 0x0000ffff & in32r ((pGD->dprBase + 0x000c));
778
779 control |= 0x80010000;
780
781 out32r ((pGD->dprBase + 0x000c), control);
782
783 /* Wait for drawing processor */
784 do
785 {
786 out8 ((pGD->isaBase + 0x3c4), 0x16);
787 } while (in8 (pGD->isaBase + 0x3c5) & 0x08);
788 }
789
790 /*******************************************************************************
791 *
792 * Drawing engine bitblt with screen region
793 */
794 void video_hw_bitblt (
795 unsigned int bpp, /* bytes per pixel */
796 unsigned int src_x, /* source pos x */
797 unsigned int src_y, /* source pos y */
798 unsigned int dst_x, /* dest pos x */
799 unsigned int dst_y, /* dest pos y */
800 unsigned int dim_x, /* frame width */
801 unsigned int dim_y /* frame height */
802 )
803 {
804 register GraphicDevice *pGD = (GraphicDevice *)&smi;
805 register unsigned int control;
806
807 dim_x *= bpp;
808
809 if ((src_y<dst_y) || ((src_y==dst_y) && (src_x<dst_x)))
810 {
811 out32r ((pGD->dprBase + 0x0000), (((src_x+dim_x-1)<<16) | (src_y+dim_y-1)));
812 out32r ((pGD->dprBase + 0x0004), (((dst_x+dim_x-1)<<16) | (dst_y+dim_y-1)));
813 control = 0x88000000;
814 } else {
815 out32r ((pGD->dprBase + 0x0000), ((src_x<<16) | src_y));
816 out32r ((pGD->dprBase + 0x0004), ((dst_x<<16) | dst_y));
817 control = 0x80000000;
818 }
819
820 out32r ((pGD->dprBase + 0x0008), ((dim_x<<16) | dim_y));
821 control |= (0x0000ffff & in32r ((pGD->dprBase + 0x000c)));
822 out32r ((pGD->dprBase + 0x000c), control);
823
824 /* Wait for drawing processor */
825 do
826 {
827 out8 ((pGD->isaBase + 0x3c4), 0x16);
828 } while (in8 (pGD->isaBase + 0x3c5) & 0x08);
829 }
830
831 /*******************************************************************************
832 *
833 * Set a RGB color in the LUT (8 bit index)
834 */
835 void video_set_lut (
836 unsigned int index, /* color number */
837 unsigned char r, /* red */
838 unsigned char g, /* green */
839 unsigned char b /* blue */
840 )
841 {
842 register GraphicDevice *pGD = (GraphicDevice *)&smi;
843
844 out8 (SMI_LUT_MASK, 0xff);
845
846 out8 (SMI_LUT_START, (char)index);
847
848 out8 (SMI_LUT_RGB, r>>2); /* red */
849 udelay (10);
850 out8 (SMI_LUT_RGB, g>>2); /* green */
851 udelay (10);
852 out8 (SMI_LUT_RGB, b>>2); /* blue */
853 udelay (10);
854 }
"Das U-Boot" Source Tree