Annotation of margi2/decoder.c, revision 1.1.1.1
1.1 cvs 1: /*
2: decoder.c
3:
4: Copyright (C) Christian Wolff for convergence integrated media.
5:
6: This program is free software; you can redistribute it and/or modify
7: it under the terms of the GNU General Public License as published by
8: the Free Software Foundation; either version 2 of the License, or
9: (at your option) any later version.
10:
11: This program is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU General Public License for more details.
15:
16: You should have received a copy of the GNU General Public License
17: along with this program; if not, write to the Free Software
18: Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19: */
20:
21: #define __NO_VERSION__
22:
23: #include "decoder.h"
24: #include "l64021.h"
25: #include "video.h"
26: #include "audio.h"
27: #include "streams.h"
28: #include "osd.h"
29: #include "dram.h"
30:
31: int DecoderGetNavi(struct cvdv_cards *card, u8 *navidata)
32: {
33: if (card->navihead == card->navitail) return 0;
34: // printk(KERN_DEBUG LOGNAME ": Retreiving NaviPack\n");
35: memcpy(navidata, &card->navibuffer[card->navitail], NAVISIZE);
36: card->navitail += NAVISIZE;
37: if (card->navitail >= NAVIBUFFERSIZE) card->navitail = 0;
38: return NAVISIZE;
39: }
40:
41: // returns 1 on overrun, 0 on no error
42: int DecoderQueueNavi(struct cvdv_cards *card, u8 *navidata)
43: {
44: memcpy(&card->navibuffer[card->navihead], navidata, NAVISIZE);
45: card->navihead += NAVISIZE;
46: if (card->navihead >= NAVIBUFFERSIZE) card->navihead = 0;
47: if (card->navihead == card->navitail) {
48: // printk(KERN_DEBUG LOGNAME ": NaviPack buffer overflow\n");
49: card->navitail += NAVISIZE;
50: if (card->navitail >= NAVIBUFFERSIZE) card->navitail = 0;
51: return 1;
52: }
53: return 0;
54: }
55:
56: u32 ParseSCR(const u8 *scrdata)
57: {
58: u32 SCR_base=0;
59:
60: if ((!scrdata[0]) && (!scrdata[1]) && (scrdata[2]==1)
61: && (scrdata[3]==0xBA) && ((scrdata[4]&0xC0)==0x40)) {
62: SCR_base=((scrdata[4]>>3)&0x07);
63: SCR_base=(SCR_base<<2) | (scrdata[4]&0x03);
64: SCR_base=(SCR_base<<8) | scrdata[5];
65: SCR_base=(SCR_base<<5) | ((scrdata[6]>>3)&0x1F);
66: SCR_base=(SCR_base<<2) | (scrdata[6]&0x03);
67: SCR_base=(SCR_base<<8) | scrdata[7];
68: SCR_base=(SCR_base<<5) | ((scrdata[8]>>3)&0x1F);
69: }
70: return SCR_base;
71: }
72:
73: u32 SetSCR(struct cvdv_cards *card, u32 SCR_base)
74: {
75: // printk(KERN_ERR LOGNAME ": SCR in DVD Pack: 0x%08X\n",SCR_base);
76: if (DecoderReadByte(card, 0x007) & 0x10) { // SCR already stopped
77: DecoderWriteByte(card,0x009,SCR_base&0xFF); // Set SCR counter
78: DecoderWriteByte(card,0x00A,(SCR_base>>8)&0xFF);
79: DecoderWriteByte(card,0x00B,(SCR_base>>16)&0xFF);
80: DecoderWriteByte(card,0x00C,(SCR_base>>24)&0xFF);
81: } else {
82: DecoderMaskByte(card,0x007,0xD2,0xD2);
83: // Set 0x10, halt SCR counter
84: DecoderWriteByte(card,0x009,SCR_base&0xFF); // Set SCR counter
85: DecoderWriteByte(card,0x00A,(SCR_base>>8)&0xFF);
86: DecoderWriteByte(card,0x00B,(SCR_base>>16)&0xFF);
87: DecoderWriteByte(card,0x00C,(SCR_base>>24)&0xFF);
88: DecoderMaskByte(card,0x007,0xD2,0xC2);
89: // Del 0x10, SCR counter run
90: }
91: return SCR_base;
92: }
93:
94: void DecoderPause(struct cvdv_cards *card)
95: {
96: DecoderMaskByte(card, 0x007, 0xD2, 0xD2);
97: // Set 0x010, halt SCR counter
98: AudioSetPlayMode(card, AUDIO_PAUSE);
99: DecoderStopDecode(card);
100: card->paused = 1;
101: }
102:
103: void DecoderUnPause(struct cvdv_cards *card)
104: {
105: DecoderStartDecode(card);
106: AudioSetPlayMode(card, AUDIO_PLAY);
107: DecoderMaskByte(card, 0x007, 0xD2, 0xC2);
108: // Del 0x010, SCR counter run
109: card->paused = 0;
110: }
111:
112: void CloseCard(struct cvdv_cards *card)
113: {
114: printk(KERN_DEBUG LOGNAME ": Closing card\n");
115: DecoderStreamReset(card);
116: DecoderSetupReset(card);
117: DecoderUnPrepare(card);
118: DecoderClose(card);
119:
120: AudioClose(card);
121: OSDClose(card);
122: }
123:
124:
125: void DecoderReadAudioInfo(struct cvdv_cards *card)
126: {
127: u8 data;
128: static int bitrates[17] = {0, 32, 40, 48, 56, 64, 80, 96, 112,
129: 128, 160, 192, 224, 256, 320, 384, 0};
130: struct AudioParam *audio = &card->stream.audio;
131: data = DecoderReadByte(card, 0x150);
132: audio->mpeg.present = data & 0x60;
133: // MPEG Layer Code 00 reserverd, we can assume valid MPEG params
134: if (audio->mpeg.present) {
135: audio->mpeg.MPEG2 = data & 0x80;
136: audio->mpeg.layer = 4 - ((data >> 5) & 0x03);
137: if (data & 0x0F) {
138: if ((data & 0x0F) == 1) audio->mpeg.bitrate = 32;
139: else switch (audio->mpeg.layer) {
140: case 1:
141: audio->mpeg.bitrate = 32 * (data & 0x0F);
142: break; // Layer I
143: case 2:
144: audio->mpeg.bitrate = bitrates[(data & 0x0F) +
145: 1];
146: break; // Layer II
147: default:
148: audio->mpeg.bitrate = bitrates[data & 0x0F];
149: // Layer III
150: }
151: } else audio->mpeg.bitrate = 0;
152: data = DecoderReadByte(card, 0x151);
153: switch ((data >> 6) & 0x03) {
154: case 0:
155: audio->mpeg.samplefreq = 44;
156: break;
157: case 1:
158: audio->mpeg.samplefreq = 48;
159: break;
160: case 2:
161: audio->mpeg.samplefreq = 32;
162: break;
163: default:
164: audio->mpeg.samplefreq = 0; // invalid
165: }
166: audio->mpeg.mode = (data >> 3) & 0x03;
167: audio->mpeg.modeext = (data >> 1) & 0x03;
168: audio->mpeg.copyright = data & 0x01;
169: data=DecoderReadByte(card, 0x152);
170: audio->mpeg.original = data & 0x80;
171: audio->mpeg.emphasis = (data >> 5) & 0x03;
172: }
173: data = DecoderReadByte(card, 0x153);
174: audio->ac3.present = (data != 0);
175: // value 0 for bits 0..5 forbidden, we can assume valid ac3 params
176: if (audio->ac3.present) {
177: audio->ac3.acmod = (data >> 5) & 0x07;
178: audio->ac3.dialnorm = data & 0x1F;
179: data = DecoderReadByte(card, 0x154);
180: audio->ac3.bsmod = (data >> 5) & 0x07;
181: audio->ac3.dialnorm2 = data > 0x1F;
182: data = DecoderReadByte(card, 0x155);
183: audio->ac3.surmixlev = (data >> 6) & 0x03;
184: audio->ac3.mixlevel = (data >> 1) & 0x1F;
185: data = DecoderReadByte(card, 0x156);
186: audio->ac3.cmixlev = (data >> 6) & 0x03;
187: audio->ac3.mixlevel2 = (data >> 1) & 0x1F;
188: data = DecoderReadByte(card, 0x157);
189: audio->ac3.fscod = (data >> 6) & 0x03;
190: audio->ac3.lfeon = (data >> 5) & 0x01;
191: audio->ac3.bsid = data & 0x1F;
192: data = DecoderReadByte(card, 0x158);
193: audio->ac3.dsurmod = (data >> 6) & 0x03;
194: audio->ac3.frmsizecod = data & 0x3F;
195: audio->ac3.langcod = DecoderReadByte(card, 0x159);
196: audio->ac3.langcod2 = DecoderReadByte(card, 0x15A);
197: audio->ac3.timecod = DecoderReadByte(card, 0x15B);
198: data = DecoderReadByte(card, 0x15C);
199: audio->ac3.timecod = (audio->ac3.timecod << 6) |
200: ((data >> 2) & 0x3F);
201: audio->ac3.roomtyp = data & 0x03;
202: audio->ac3.timecod2 = DecoderReadByte(card, 0x15D);
203: data = DecoderReadByte(card, 0x15E);
204: audio->ac3.timecod2 = (audio->ac3.timecod2 << 6) |
205: ((data >> 2) & 0x3F);
206: audio->ac3.roomtyp2 = data & 0x03;
207: }
208: audio->pcm.present =! (DecoderReadByte(card, 0x161) & 0x20);
209: // PCM FIFO not empty? Then, we can assume valid LPCM params
210: if (audio->pcm.present) {
211: data = DecoderReadByte(card, 0x15F);
212: audio->pcm.audio_frm_num = (data >> 3) & 0x1F;
213: audio->pcm.num_of_audio_ch = data & 0x07;
214: data = DecoderReadByte(card, 0x160);
215: audio->pcm.Fs = (data >> 6) & 0x03;
216: audio->pcm.quantization = (data >> 4) & 0x03;
217: audio->pcm.emphasis = (data >> 2) & 0x03;
218: audio->pcm.mute_bit = (data >> 1) & 0x01;
219: }
220: switch (card->setup.audioselect) {
221: case audio_disable:
222: audio->valid = 0;
223: break;
224: case audio_none:
225: case audio_DTS:
226: case audio_SDDS:
227: if ((audio->valid = (audio->ac3.present ||
228: audio->pcm.present ||
229: audio->mpeg.present))) {
230: if (audio->mpeg.present) {
231: card->setup.audioselect = audio_MPEG;
232: } else if (audio->pcm.present) {
233: card->setup.audioselect = audio_LPCM;
234: } else if (audio->ac3.present) {
235: card->setup.audioselect = audio_AC3;
236: }
237: } else {
238: audio->valid = 0;
239: card->setup.audioselect = audio_none;
240: }
241: break;
242: case audio_MPEG: // MPEG Audio
243: case audio_MPEG_EXT: // MPEG Audio with extension stream
244: audio->valid = audio->mpeg.present;
245: break;
246: case audio_LPCM: // Linear Pulse Code Modulation LPCM
247: audio->valid = audio->pcm.present;
248: break;
249: case audio_AC3: // AC-3
250: audio->valid = audio->ac3.present;
251: break;
252: }
253: printk(KERN_DEBUG LOGNAME ": -- DecoderReadAudioInfo - type/valid %d/%d:\n", card->setup.audioselect, audio->valid);
254: if (audio->mpeg.present || audio->ac3.present || audio->pcm.present)
255: printk(KERN_DEBUG LOGNAME ": Audio - Decoded parameters:\n");
256: if (audio->mpeg.present) printk(KERN_DEBUG LOGNAME ": MPEG%s Layer %d, %d kHz, %d kbps, %s, %s%s, %s emphasis\n",
257: ((audio->mpeg.MPEG2) ? "2" : "1"),
258: audio->mpeg.layer,
259: audio->mpeg.samplefreq,
260: audio->mpeg.bitrate,
261: ((audio->mpeg.mode == 0) ? "stereo" : ((audio->mpeg.mode == 1) ? "joint stereo" : ((audio->mpeg.mode == 2) ? "dual channel" : "single channel"))),
262: ((audio->mpeg.copyright) ? "copyrighted " : ""),
263: ((audio->mpeg.original) ? "original" : "copy"),
264: ((audio->mpeg.emphasis == 0) ? "no" : ((audio->mpeg.emphasis == 1) ? "50/15 usec." : ((audio->mpeg.emphasis == 2) ? "invalid" : "J.17")))
265: );
266: if (audio->ac3.present) printk(KERN_DEBUG LOGNAME ": AC3 acmod=%d bsmod=%d dialnorm=%d dialnorm2=%d surmixlev=%d mixlevel=%d cmixlev=%d mixlevel2=%d fscod=%d lfeon=%d bsid=%d dsurmod=%d frmsizecod=%d langcod=%d langcod2=%d timecod=%d roomtyp=%d timecod2=%d roomtyp2=%d\n",
267: audio->ac3.acmod,
268: audio->ac3.bsmod,
269: audio->ac3.dialnorm,
270: audio->ac3.dialnorm2,
271: audio->ac3.surmixlev,
272: audio->ac3.mixlevel,
273: audio->ac3.cmixlev,
274: audio->ac3.mixlevel2,
275: audio->ac3.fscod,
276: audio->ac3.lfeon,
277: audio->ac3.bsid,
278: audio->ac3.dsurmod,
279: audio->ac3.frmsizecod,
280: audio->ac3.langcod,
281: audio->ac3.langcod2,
282: audio->ac3.timecod,
283: audio->ac3.roomtyp,
284: audio->ac3.timecod2,
285: audio->ac3.roomtyp2);
286: if (audio->pcm.present) printk(KERN_DEBUG LOGNAME ": LPCM audio_frm_num=%d num_of_audio_ch=%d Fs=%d quantization=%d emphasis=%d mute_bit=%d\n",
287: audio->pcm.audio_frm_num,
288: audio->pcm.num_of_audio_ch,
289: audio->pcm.Fs,
290: audio->pcm.quantization,
291: audio->pcm.emphasis,
292: audio->pcm.mute_bit);
293: }
294:
295: void DecoderReadAuxFifo(struct cvdv_cards *card)
296: {
297: int i = 0;
298: u8 data;
299: int layer;
300:
301: struct StreamInfo *stream = &card->stream;
302: // printk(KERN_DEBUG LOGNAME ": AUX - ");
303: // printk("%03X ", card->AuxFifo[card->AuxFifoTail]);
304: while (card->AuxFifoHead != card->AuxFifoTail) {
305:
306: layer = (card->AuxFifo[card->AuxFifoTail] >> 8) & 0x07;
307: data = card->AuxFifo[card->AuxFifoTail] & 0xFF;
308: card->AuxFifoTail = (card->AuxFifoTail + 1) & FIFO_MASK;
309: if (layer != card->AuxFifoLayer) { // start of a new layer?
310: i = 0;
311: card->AuxFifoLayer = layer;
312: } else i++;
313: switch (layer) { // layer code
314: case 0: // sequence header
315: if (! stream->sh.valid) switch (i) {
316: case 0:
317: stream->sh.hsize = data & 0x0F;
318: break;
319: case 1:
320: stream->sh.hsize = (stream->sh.hsize << 8)
321: | data;
322: stream->hsize = stream->sh.hsize;
323: break;
324: case 2:
325: stream->sh.vsize = data & 0x0F;
326: break;
327: case 3:
328: stream->sh.vsize = (stream->sh.vsize << 8) |
329: data;
330: stream->vsize = stream->sh.vsize;
331: break;
332: case 4:
333: stream->sh.aspectratio = data & 0x0F;
334: break;
335: case 5:
336: stream->sh.frameratecode = data & 0x0F;
337: break;
338: case 6:
339: stream->sh.bitrate = data & 0x03;
340: break;
341: case 7:
342: stream->sh.bitrate = (stream->sh.bitrate << 8)
343: | data;
344: break;
345: case 8:
346: stream->sh.bitrate = (stream->sh.bitrate << 8)
347: | data;
348: stream->bitrate = stream->sh.bitrate;
349: break;
350: case 9:
351: stream->sh.vbvbuffersize = data & 0x03;
352: break;
353: case 10:
354: stream->sh.vbvbuffersize =
355: (stream->sh.vbvbuffersize << 8) |
356: data;
357: stream->vbvbuffersize =
358: stream->sh.vbvbuffersize;
359: break;
360: case 11:
361: stream->sh.constrained = data & 0x01;
362: stream->sh.valid = 1;
363: printk(KERN_DEBUG LOGNAME ": AUX - MPEG1 - %dx%d %s %s fps, %d bps, %d kByte vbv%s\n", stream->sh.hsize, stream->sh.vsize,
364: ((stream->sh.aspectratio == 1) ? "1:1" :
365: ((stream->sh.aspectratio == 2) ? "3:4" :
366: ((stream->sh.aspectratio == 3) ? "9:16" :
367: ((stream->sh.aspectratio == 4) ? "1:2.21" :
368: "?:?")))),
369: ((stream->sh.frameratecode == 1) ? "23.976" :
370: ((stream->sh.frameratecode == 2) ? "24" :
371: ((stream->sh.frameratecode == 3) ? "25" :
372: ((stream->sh.frameratecode == 4) ? "29.97" :
373: ((stream->sh.frameratecode == 5) ? "30" :
374: ((stream->sh.frameratecode == 6) ? "50" :
375: ((stream->sh.frameratecode == 7) ? "59.94" :
376: ((stream->sh.frameratecode == 8) ? "60" :
377: "?")))))))),
378: stream->sh.bitrate * 400,
379: stream->sh.vbvbuffersize * 16,
380: ((stream->sh.constrained) ? ", constrained" : "")
381: );
382: break;
383: }
384: break;
385: case 1: // group of pictures
386: if (! stream->gop.valid)
387: switch (i) {
388: case 0:
389: stream->gop.timecode = data & 0x01;
390: break;
391: case 1:
392: stream->gop.timecode =
393: (stream->gop.timecode << 8) |
394: data;
395: break;
396: case 2:
397: stream->gop.timecode =
398: (stream->gop.timecode << 8) |
399: data;
400: break;
401: case 3:
402: stream->gop.timecode =
403: (stream->gop.timecode << 8) |
404: data;
405: break;
406: case 4:
407: stream->gop.closedgop = data & 0x01;
408: break;
409: case 5:
410: stream->gop.brokenlink = data & 0x01;
411: stream->gop.valid = 1;
412: break;
413: }
414: break;
415: case 2: // picture
416: if (0)
417: switch (i) {
418: case 0:
419: break;
420: }
421: break;
422: case 7: // extension layer
423: if (i == 0) card->AuxFifoExt = data;
424: else
425: switch (card->AuxFifoExt) { // extension code
426: case 1: // sequence extension
427: if ((stream->sh.valid) &&
428: (! stream->se.valid))
429: switch (i) {
430: case 1:
431: stream->se.profilelevel
432: = data;
433: break;
434: case 2:
435: stream->se.progressive
436: = data & 0x01;
437: break;
438: case 3:
439: stream->se.chroma =
440: (data >> 4) &
441: 0x03;
442: stream->se.hsizeext =
443: (data >> 2) &
444: 0x03;
445: stream->se.vsizeext =
446: data & 0x03;
447: stream->hsize |=
448: (stream->se.hsizeext << 12);
449: stream->vsize |=
450: (stream->se.vsizeext << 12);
451: break;
452: case 4:
453: stream->se.bitrateext =
454: data & 0x0F;
455: break;
456: case 5:
457: stream->se.bitrateext =
458: (stream->se.bitrateext << 8) | data;
459: stream->bitrate |=
460: (stream->se.bitrateext << 18);
461: break;
462: case 6:
463: stream->se.vbvbuffersizeext = data;
464: stream->vbvbuffersize |= (stream->se.vbvbuffersizeext << 10);
465: break;
466: case 7:
467: stream->se.lowdelay =
468: (data >> 7) &
469: 0x01;
470: stream->se.frextn =
471: (data >> 5) &
472: 0x03;
473: stream->se.frextd =
474: data & 0x1F;
475: stream->se.valid = 1;
476: stream->MPEG2 = 1;
477: printk(KERN_DEBUG LOGNAME ": AUX - MPEG2 - %dx%d %s %s*%d/%d fps, %d bps, %d kByte vbv%s%s\n", stream->hsize, stream->vsize,
478: ((stream->sh.aspectratio == 1) ? "1:1" :
479: ((stream->sh.aspectratio == 2) ? "3:4" :
480: ((stream->sh.aspectratio == 3) ? "9:16" :
481: ((stream->sh.aspectratio == 4) ? "1:2.21" :
482: "?:?")))),
483: ((stream->sh.frameratecode == 1) ? "23.976" :
484: ((stream->sh.frameratecode == 2) ? "24" :
485: ((stream->sh.frameratecode == 3) ? "25" :
486: ((stream->sh.frameratecode == 4) ? "29.97" :
487: ((stream->sh.frameratecode == 5) ? "30" :
488: ((stream->sh.frameratecode == 6) ? "50" :
489: ((stream->sh.frameratecode == 7) ? "59.94" :
490: ((stream->sh.frameratecode == 8) ? "60" :
491: "?")))))))),
492: stream->se.frextn + 1,
493: stream->se.frextd + 1,
494: stream->bitrate * 400,
495: stream->vbvbuffersize * 16,
496: ((stream->sh.constrained) ? ", constrained" : ""),
497: ((stream->se.lowdelay) ? ", low delay" : "")
498: );
499: break;
500: }
501: break;
502: case 2: // sequence display extension
503: if (0)
504: switch (i) {
505: case 0:
506: break;
507: }
508: break;
509: case 3: // quant matrix extension
510: if (0)
511: switch (i) {
512: case 0:
513: break;
514: }
515: break;
516: case 4: // copyright extension
517: if (0)
518: switch (i) {
519: case 0:
520: break;
521: }
522: break;
523: case 7: // picture display extension
524: if (0) switch (i) {
525: case 0:
526: break;
527: }
528: break;
529: case 8: // picture coding extension
530: if (0)
531: switch (i) {
532: case 0:
533: break;
534: }
535: break;
536: default:
537: break;
538: }
539: break;
540: default:break;
541: }
542:
543: }
544: }
545:
546: void DecoderReadDataFifo(struct cvdv_cards *card)
547: {
548: // printk(KERN_DEBUG LOGNAME ": DATA - ");
549: while (card->DataFifoHead != card->DataFifoTail) {
550: // printk("%03X ", card->DataFifo[card->DataFifoTail]);
551: card->DataFifoTail = (card->DataFifoTail + 1) & FIFO_MASK;
552: }
553: // printk("\n");
554: }
555:
556: int DecoderReadNavipack(struct cvdv_cards *card)
557: {
558: u32 startaddr, endaddr, writeaddr;
559: u8 navipack[1024];
560: u16 PacketLength;
561: u8 SubStreamID;
562: //struct Navi navi;
563: int i;
564: startaddr = (DecoderReadWord(card, 0x05C) & 0x3FFF) << 7;
565: // 21 bit word address
566: endaddr = (DecoderReadWord(card, 0x05E) & 0x3FFF) << 7;
567: // 21 bit word address
568: writeaddr = DecoderReadByte(card, 0x075) & 0xFF;
569: writeaddr |= (DecoderReadWord(card, 0x077) & 0x0FFF) << 8;
570: //writeaddr <<= 3;
571: //printk(KERN_DEBUG LOGNAME ": -- DecoderReadNavipack 0x%08X-0x%08X, ->0x%08X <-0x%08X\n", startaddr, endaddr, writeaddr, card->NaviPackAddress);
572:
573: if (DecoderReadByte(card, 0x07B) & 0xC0) { // navi pack available?
574: DRAMReadByte(card, card->NaviPackAddress, 1024, navipack, 0);
575: card->reg07B |= 0x20; // decrement navi counter
576: DecoderWriteByte(card, 0x07B, card->reg07B);
577: card->reg07B &= ~0x20;
578: //DecoderSetByte(card, 0x07B, 0x20); // decrement navi counter
579: card->NaviPackAddress += 512; // increment in words
580: if (card->NaviPackAddress >= endaddr)
581: card->NaviPackAddress = startaddr;
582: //printk(KERN_DEBUG LOGNAME ": Navipack %02X %02X %02X %02X %02X %02X %02X %02X\n",
583: // navipack[0], navipack[1], navipack[2], navipack[3], navipack[4], navipack[5], navipack[6], navipack[7]);
584: if ((!navipack[0]) && (!navipack[1]) && (navipack[2] == 1) && (navipack[3] == 0xBF)) {
585: PacketLength = (navipack[4] << 8) | navipack[5];
586: SubStreamID = navipack[6];
587: //printk(KERN_DEBUG LOGNAME ": Navipack Len=%d, ID=%d\n", PacketLength, SubStreamID);
588: i = 7; // start of payload data in navipack[]
589: switch (SubStreamID) {
590: case 0: // Presentation Control Information (PCI)
591: if (PacketLength < 980) return 1; // Packet too small
592: DecoderQueueNavi(card, navipack);
593: break;
594: case 1: // Data Search Information (DSI)
595: if (PacketLength < 1018) return 1; // Packet too small
596: DecoderQueueNavi(card, navipack);
597: break;
598: default:
599: break;
600: }
601: // } else {
602: // printk(KERN_DEBUG LOGNAME ": navi pack format error: %02X %02X %02X %02X %02X %02X %02X %02X.\n",
603: // navipack[0], navipack[1], navipack[2], navipack[3], navipack[4], navipack[5], navipack[6], navipack[7]);
604: }
605: // } else {
606: // printk(KERN_DEBUG LOGNAME ": no navi pack avail.\n");
607: }
608: return 0;
609: }
610:
611: int AudioStart(struct cvdv_cards *card)
612: {
613: DecoderReadAudioInfo(card); // detect audio type
614: if (card->stream.audio.valid) {
615: printk(KERN_DEBUG LOGNAME ": Audio Init in delayed decoder start\n");
616: if (card->AudioInitialized) AudioClose(card);
617: switch (card->setup.audioselect) {
618: case audio_MPEG: // MPEG Audio
619: case audio_MPEG_EXT: // MPEG Audio with ext.
620: printk(KERN_DEBUG LOGNAME ": Using MPEG Audio\n");
621: AudioInit(card, card->stream.audio.mpeg.samplefreq, 0);
622: if (card->stream.audio.mpeg.mode == 3) AudioDualMono(card, 2); // left channel only
623: else AudioDualMono(card, 0);
624: break;
625: case audio_DTS:
626: case audio_LPCM: // Linear Pulse Code Modulation LPCM
627: printk(KERN_DEBUG LOGNAME ": Using LPCM Audio\n");
628: AudioInit(card, 48, 0); // or 96
629: break;
630: case audio_AC3: // AC-3
631: printk(KERN_DEBUG LOGNAME ": Using AC-3 Audio\n");
632: switch (card->stream.audio.ac3.fscod) {
633: case 0:AudioInit(card, 48, 0); break;
634: case 1:AudioInit(card, 44, 0); break;
635: case 2:AudioInit(card, 32, 0); break;
636: }
637: break;
638: case audio_none:
639: case audio_disable:
640: case audio_SDDS:
641: }
642: } else return 1;
643: return 0;
644: }
645:
646: // Slow mode: displays every field <slowfactor> times
647: // slowfactor=0 disables this mode.
648: void VideoSlow(struct cvdv_cards *card, int slowfactor)
649: {
650: if (!slowfactor && card->slowdown) DecoderWriteByte(card, 0x0ED, 0x00); // run
651: card->lastslow = 0;
652: card->slowdown = slowfactor;
653: }
654:
655: // Puts decoder in pause after so many fields
656: void StepsToPause(struct cvdv_cards *card, int steps)
657: {
658: card->videosteps = steps;
659: }
660:
661: u32 DecoderReadSCR(struct cvdv_cards *card, u16 address)
662: {
663: u32 SCR;
664: SCR = DecoderReadByte(card, address);
665: SCR |= ((u32)DecoderReadByte(card, address+1) << 8);
666: SCR |= ((u32)DecoderReadByte(card, address+2) << 16);
667: SCR |= ((u32)DecoderReadByte(card, address+3) << 24);
668: return SCR;
669: }
670:
671: u32 DecoderReadRWAddr(struct cvdv_cards *card, u16 address)
672: {
673: u32 addr;
674: addr = DecoderReadByte(card, address) & 0xFF;
675: addr |= (((u32)DecoderReadByte(card, address+1) & 0xFF) << 8);
676: addr |= (((u32)DecoderReadByte(card, address+2) & 0x0F) << 16);
677: return addr;
678: }
679:
680: int PTSGetFirstPTS(PTSStorage *store, u32 *PTS)
681: {
682: if ( store->end == store->begin ) {
683: return 0;
684: } else {
685: *PTS = store->PTS[store->begin];
686: return 1;
687: }
688: }
689:
690: void PTSStoreAdd(PTSStorage *store, u32 PTS, u32 AddrB, u32 AddrE)
691: {
692: int new;
693:
694: //printk(KERN_DEBUG LOGNAME ": PTSStoreAdd - store in [%d] %08X - %08X\n", store->end, AddrB, AddrE);
695:
696: // cheap fix: don't store if address rollover
697: if ((AddrB & 0x00080000) != (AddrE & 0x00080000)) return;
698:
699: new = store->end;
700:
701: store->end++;
702: if (store->end >= store->size) store->end = 0;
703: if (store->end == store->begin) {
704: store->begin++;
705: if (store->begin >= store->size) store->begin = 0;
706: }
707:
708: store->AddrB[new] = AddrB;
709: store->AddrE[new] = AddrE;
710: store->PTS[new] = PTS;
711: }
712:
713: int PTSGetPTS (PTSStorage *store, u32 Addr, u32 *PTS )
714: {
715: u32 AddrB;
716: u32 AddrE;
717: int i;
718: int found;
719: int search;
720:
721: //printk(KERN_DEBUG LOGNAME ": PTSGetPTS - search %08X\n", Addr);
722:
723: if (store->end == store->begin) {
724: store->LastAddr = Addr;
725: return 0;
726: }
727:
728: // Search for the PTS in the array
729: found = 0;
730: search = 1;
731: while (search && !found) {
732: // Get the first value
733: i = store->begin;
734: AddrB = store->AddrB[i];
735: AddrE = store->AddrE[i];
736:
737: //printk(KERN_DEBUG LOGNAME ": PTSGetPTS - search in [%d] %08X - %08X\n", i, AddrB, AddrE);
738:
739: //If in range, keep it
740: if ((Addr >= AddrB) && (Addr <= AddrE)) {
741: *PTS = store->PTS[i];
742: found = 1;
743: } else {
744: if ((Addr & 0x00080000) == (AddrB & 0x00080000)) {
745: if (Addr < AddrB ) search = 0;
746: } else {
747: if ((store->LastAddr & 0x00080000) == (Addr & 0x00080000)) search = 0;
748: }
749: }
750: if (search) {
751: store->begin++;
752: if (store->begin >= store->size) store->begin = 0;
753: if (store->end == store->begin ) search = 0;
754: }
755: }
756: store->LastAddr = Addr;
757: return found;
758: }
759:
760:
761: u32 GetPTS(u8 *data, u32* MediaPointer, int mpeg, int hlength,int off)
762: {
763: u32 PTS = 0xFFFFFFFFUL;
764: int p = 0;
765:
766: // Read PTS, if present
767: if ((mpeg == 2 && data[p + 7] & 0x80) ||
768: (mpeg == 1 && off)) {
769: if (mpeg == 1) p = off-9;
770: PTS = (data[p + 9] >> 1) & 0x03UL;
771: PTS = (PTS << 8) | (data[p + 10] & 0xFFUL);
772: PTS = (PTS << 7) | ((data[p + 11] >> 1) & 0x7FUL);
773: PTS = (PTS << 8) | (data[p + 12] & 0xFFULL);
774: PTS = (PTS << 7) | ((data[p + 13] >> 1) & 0x7FUL);
775: }
776: // Now, skip rest of PES header and stuffing
777: if (mpeg == 2){
778: p += (9 + (data[p + 8] & 0xFF));
779: p = ((p + 7) / 8) * 8;
780: } else p = hlength+7;
781: if (!(data[p++] | data[p++] | data[p++] | data[p++])) {
782: *MediaPointer = (u32)data[p++] & 0xFF;
783: *MediaPointer = (*MediaPointer << 8) | ((u32)data[p++] & 0xFF);
784: *MediaPointer = (*MediaPointer << 8) | ((u32)data[p++] & 0xFF);
785: *MediaPointer = (*MediaPointer << 8) | ((u32)data[p++] & 0xFF);
786: } else {
787: *MediaPointer = 0xFFFFFFFFUL;
788: }
789: return PTS;
790: }
791:
792: int ReadPESChunk(struct cvdv_cards *card, u32 *addr, u8 *data, u32 start, u32 end)
793: {
794: int i = 5, err = -1;
795: while (err && (i--)) err &= DRAMReadByte(card, *addr << 2, 8, &data[0], 0);
796: if (err) return 1;
797: (*addr)++;
798: if (*addr >= end) *addr = start;
799: return 0;
800: }
801:
802: void ReadPESHeaders(struct cvdv_cards *card)
803: {
804: u8 startcode[] = {0x00, 0x00, 0x01};
805: int LoopCount;
806: u32 LastVAddr; // Current Video Address
807: u32 LastAAddr; // Current Audio Address
808: u32 Addr; // Current Header Address
809: u32 PESAddr; // Pointer from Header Block
810: u32 PTS; // PTS from Header Block
811: u8 Data[32];
812: u32 AudioPESStart;
813: u32 AudioPESEnd;
814: int i, j, p, fail;
815: u32 FailAddr;
816: int hlength=0;
817: int mpeg=0;
818: int check;
819: int mp=0;
820: int off=0;
821:
822: AudioPESStart = (DecoderReadWord(card, 0x058) & 0x3FFF) << 5;
823: AudioPESEnd = ((DecoderReadWord(card, 0x05A) & 0x3FFF) + 1) << 5;
824:
825: LastVAddr = DecoderReadRWAddr(card, 0x060);
826: LastAAddr = DecoderReadRWAddr(card, 0x063);
827:
828: if (card->LastAddr == 0) card->LastAddr = AudioPESStart;
829:
830: //card->AudioPES .. (((DecoderReadWord(card,0x05A) & 0x3FFF) + 1) << 5)
831:
832: //Read the PES header buffer
833: Addr = DecoderReadRWAddr(card, 0x072) & 0x0007FFFF;
834: if (Addr >= AudioPESEnd) {
835: Addr = card->LastAddr = AudioPESStart;
836: }
837:
838: LoopCount = 0;
839: while ((card->LastAddr != Addr) && (LoopCount++ < 200)) {
840: //printk(KERN_DEBUG LOGNAME ": Read PES header: round %d 0x%08X -> 0x%08X\n", LoopCount, card->LastAddr, Addr);
841: FailAddr = card->LastAddr;
842: fail = 0;
843: p = 0;
844:
845: if (ReadPESChunk(card, &card->LastAddr, &Data[p], AudioPESStart, AudioPESEnd)) continue;
846: p+=8;
847: j=1;
848:
849:
850: //printk(KERN_DEBUG LOGNAME ": PES header: %02X %02X %02X %02X %02X %02X %02X %02X\n", Data[0],Data[1],Data[2],Data[3],Data[4],Data[5],Data[6],Data[7]);
851: if (memcmp(Data, startcode, 3)) continue;
852: if ((Data[3] == 0xE0) || (Data[3] == 0xBD)
853: || ((Data[3] & 0xE0) == 0xC0)) {
854:
855: fail |= ReadPESChunk(card, &card->LastAddr,
856: &Data[p], AudioPESStart,
857: AudioPESEnd);
858:
859:
860: p+=8;
861: j++;
862: if ( (Data[6] & 0xC0) == 0x80 ){
863: hlength = 9+Data[8];
864: mpeg = 2;
865: } else {
866: mpeg = 1;
867: mp = 6;
868: check = Data[mp];
869: mp++;
870: while (check == 0xFF){
871: if (!fail && mp == p) {
872: fail |= ReadPESChunk(
873: card,
874: &card->LastAddr,
875: &Data[p],
876: AudioPESStart,
877: AudioPESEnd);
878: p+=8;
879: j++;
880: }
881: check = Data[mp];
882: mp++;
883: }
884: if (!fail && mp == p) {
885: fail |= ReadPESChunk(
886: card,
887: &card->LastAddr,
888: &Data[p],
889: AudioPESStart,
890: AudioPESEnd);
891: p+=8;
892: j++;
893: }
894:
895: if ( !fail && (check & 0xC0) == 0x40){
896: check = Data[mp];
897: mp++;
898: if (!fail && mp == p) {
899: fail |= ReadPESChunk(
900: card,
901: &card->LastAddr,
902: &Data[p],
903: AudioPESStart,
904: AudioPESEnd);
905: p+=8;
906: j++;
907: }
908: check = Data[mp];
909: mp++;
910: }
911: if ( !fail && (check & 0x20)){
912: if (check & 0x30) hlength = mp+10;
913: else hlength = mp+5;
914: off = mp-1;
915: }
916: //printk(KERN_DEBUG LOGNAME ": PTS: %02X %02X %02X %02X %02X\n", Data[off],Data[off+1],Data[off+2],Data[off+3],Data[off+4]);
917:
918:
919: }
920:
921: for (i = 1; (i < ((hlength+7) / 8)) && (!fail);
922: i++) {
923: fail |= ReadPESChunk(card, &card->LastAddr, &Data[p], AudioPESStart, AudioPESEnd);
924: p+=8;
925: j++;
926: }
927:
928: //printk(KERN_DEBUG LOGNAME ": PES header: %d chunks read, HL = %d\n", j, Data[8]);
929: if (!fail) {
930: PTS = GetPTS(Data, &PESAddr,
931: mpeg, hlength,off);
932: //printk(KERN_DEBUG LOGNAME ": PTS from PES header: %d @ 0x%08X\n", PTS, PESAddr);
933: if ((PTS != 0xFFFFFFFF) && (PESAddr != 0xFFFFFFFF)) {
934: if (Data[3] == 0xE0) { // Video
935: //printk(KERN_DEBUG LOGNAME ": Video PTS from PES header: %d @ 0x%08X - 0x%08X\n", PTS, PESAddr, LastVAddr);
936: PTSStoreAdd(&card->VideoPTSStore, PTS, PESAddr, LastVAddr);
937: } else { // Audio
938: //printk(KERN_DEBUG LOGNAME ": Audio PTS from PES header: %d @ 0x%08X - 0x%08X\n", PTS, PESAddr, LastAAddr);
939: PTSStoreAdd(&card->AudioPTSStore, PTS, PESAddr, LastAAddr);
940: }
941: }
942: }
943: } else {
944: //card->LastAddr = Addr;
945: }
946: // In case of error, rewind and try again
947: if (fail) card->LastAddr = FailAddr;
948: }
949: }
950:
951: void L64021Intr(struct cvdv_cards *card)
952: {
953: //static void L64021Intr(struct cvdv_cards *card) {
954: // struct cvdv_cards *card=dev_id;
955: u32 SCR_base, SCR_compareV, SCR_compareA;
956: u32 VideoAddr, AudioAddr, PTS;
957: int i, a, v, as, vs, ap, vp;
958: // int err, h;
959: u8 intr[5];
960: u8 layer;
961: //u8 oldlayer = 0;
962: long ISRTime, DeltaSyncTime, Offset;
963:
964: int used = 0;
965: u8 err;
966:
967: err = DecoderReadByte(card, 0x095);
968: if (err & 0x17) {
969: printk(KERN_DEBUG LOGNAME ": Packet Error: 0x%02X\n", err);
970: }
971:
972: ISRTime = 0; // TODO system time
973:
974: for (i = 0; i < 5; i++)
975: if ((intr[i] = DecoderReadByte(card, i))) used = 1;
976: if (used) {
977: //printk(KERN_DEBUG LOGNAME ": Int - L64021: %02X %02X %02X %02X %02X\n", intr[0], intr[1], intr[2], intr[3], intr[4]);
978: //printk(KERN_DEBUG LOGNAME ": Int - L64021 Aux/Data Fifo: %02X %02X\n",
979: // DecoderReadByte(card, 0x040),
980: // DecoderReadByte(card, 0x041));
981: //printk(KERN_DEBUG LOGNAME ": Int - L64021 VideoES w/r addr: %08X %08X\n",
982: // (DecoderReadByte(card, 0x060) | (DecoderReadByte(card, 0x061) << 8) | (DecoderReadByte(card, 0x062) << 16)) << 2,
983: // (DecoderReadByte(card, 0x06C) | (DecoderReadByte(card, 0x06D) << 8) | (DecoderReadByte(card, 0x06E) << 16)) << 2);
984:
985:
986: //if (DecoderReadByte(card, 0x005) & 0x04) DecoderDelByte(card, 0x005, 0x04);
987: //if (DecoderReadByte(card, 0x005) & 0x04) DecoderWriteByte(card, 0x005, 0x03);
988: //DecoderMaskByte(card, 0x007, 0x0C, 1 << 2); // Stream Select: MPEG1 System / MPEG2 Program Stream
989: //DecoderWriteByte(card, 0x005, 0x03);
990: //DecoderWriteByte(card, 0x007, 0xC7);
991: //printk(KERN_DEBUG LOGNAME ": Int - L64021 Channel Status: %02X %02X\n",
992: // DecoderReadByte(card, 0x007),
993: // DecoderReadByte(card, 0x005));
994:
995:
996: if (intr[0] & 0x80) { // new field
997: card->fields++;
998:
999: if (card->slowdown > 0) {
1000: if (card->lastslow == 0) {
1001: DecoderWriteByte(card, 0x0ED, 0x03); // repeat frame
1002: card->lastslow++;
1003: } else if (card->lastslow == card->slowdown) {
1004: DecoderWriteByte(card, 0x0ED, 0x00); // run
1005: } else card->lastslow++;
1006: }
1007:
1008: if (card->videosteps > 0) {
1009: card->videosteps--;
1010: if (!card->videosteps) DecoderPause(card);
1011: }
1012:
1013: if (card->videodelay > 0) {
1014: //printk(KERN_DEBUG LOGNAME ": Video delay %d\n", card->videodelay);
1015: if( (DecoderReadByte(card, 0x0ED) & 0x01) == 0x00) {
1016: card->videodelay--;
1017: if(card->videodelay){
1018: DecoderWriteByte(card, 0x0ED, 0x01);
1019: } else {
1020: DecoderWriteByte(card, 0x0ED, 0x00);
1021: }
1022: }
1023: } else if (card->videorip > 0) {
1024: //printk(KERN_DEBUG LOGNAME ": Video rip %d\n", card->videorip);
1025: if ((DecoderReadByte(card, 0x0EC) & 0x03) == 0x00) {
1026: if (DecoderReadWord(card, 0x096) > 5) { // pictures in video ES channel
1027: card->videorip--;
1028: if(card->videorip) {
1029: DecoderWriteByte(card, 0x0EC, 0x01);
1030: } else {
1031: DecoderWriteByte(card, 0x0EC, 0x00);
1032: }
1033: } else {
1034: card->videorip = 0;
1035: DecoderWriteByte (card, 0x0EC, 0x00);
1036: }
1037: }
1038: }
1039:
1040:
1041: i = (DecoderReadByte(card, 0x113) & 0xFC) | (DecoderReadByte(card, 0x114) & 0x01);
1042: v = DecoderGetVideoESLevel(card);
1043: if (card->startingV) {
1044: vs = card->VideoESSize;
1045: if (vs > 0) vp = (100 * v) / vs;
1046: else vp = 0;
1047: if (vp > 60) {
1048: printk(KERN_DEBUG LOGNAME ": Delayed Video Decoder start\n");
1049: card->startingV = 0;
1050: DecoderStartDecode(card);
1051: //DecoderWriteByte(card, 0x0EC, 0x05); // Skip B Frames
1052: //DecoderWriteByte(card, 0x0EC, 0x06); // Skip B and P Frames
1053: //DecoderWriteByte(card, 0x0EE, 0x03); // Rip forward mode
1054: //DecoderWriteByte(card, 0x0ED, 0x03); // Repeat frame mode
1055: // DecoderSetVideoPanic(card, 1, 3); // video panic at 3 pictures
1056: //DecoderSetVideoPanic(card, 0, DecoderGetVideoESSize(card) / 4); // video panic at 25 percent
1057: //VideoSetBackground(card, 0, 0, 0, 0); // Video on black
1058: }
1059: }
1060: a = DecoderGetAudioESLevel(card);
1061: if (card->startingA) {
1062: as = card->AudioESSize;
1063: if (as > 0) ap = (100 * a) / as;
1064: else ap = 0;
1065: if (ap > 60) {
1066: printk(KERN_DEBUG LOGNAME ": Delayed Audio Decoder start\n");
1067: AudioSetPlayMode(card, AUDIO_PLAY);
1068: if (!AudioStart(card)) {
1069: card->startingA = 0;
1070: }
1071: }
1072: }
1073: if (card->fields >= 250) { // 5 seconds (PAL)
1074: //SCR_base = DecoderReadByte(card, 0x09);
1075: //SCR_base = SCR_base | (DecoderReadMWord(card, 0x0A) << 8);
1076: SCR_base = DecoderReadSCR(card, 0x009);
1077: SCR_compareA = DecoderReadSCR(card, 0x014);
1078: SCR_compareV = DecoderReadSCR(card, 0x00D);
1079: if (DecoderReadByte(card, 0x013) & 0x03)
1080: // printk(KERN_DEBUG LOGNAME ": SCR 0x%08X, videocmp=0x%08X, audiocmp=0x%08X %02X\n", SCR_base, SCR_compareV, SCR_compareA, DecoderReadByte(card, 0x013));
1081: //if (DecoderReadByte(card, 0x013) & 0x03)
1082: //printk(KERN_DEBUG LOGNAME ": SCR 0x%08X, videocmp=0x%08X, audiocmp=0x%08X %02X\n", SCR_base, DecoderReadDWord(card, 0x00D), DecoderReadDWord(card, 0x014), DecoderReadByte(card, 0x013));
1083: card->fields = 0;
1084: }
1085: }
1086:
1087: if (intr[0] & 0x04) { // First Slice Start Code
1088: //printk(KERN_DEBUG LOGNAME ": Int - First Slice Start Code\n");
1089: if (card->showvideo) {
1090: // Unmute card video if first picture slice detected
1091: VideoSetBackground(card, 0, 0, 0, 0); // Video on black
1092: card->showvideo = 0;
1093: }
1094: }
1095:
1096: if (intr[0] & 0x02 ) { // Aux/User Data Fifo
1097: // printk(KERN_DEBUG LOGNAME ": Int - Aux/Data FIFO Ready\n");
1098: used = 0;
1099: while ( (used++ < 1000) &&
1100: (layer = DecoderReadByte(card, 0x040)) & 0x03){
1101: card->AuxFifo[card->AuxFifoHead] = ((layer << 6) & 0x0700) | DecoderReadByte(card, 0x043);
1102: card->AuxFifoHead = (card->AuxFifoHead + 1) & FIFO_MASK;
1103: }
1104: if (used < 1000) DecoderReadAuxFifo(card);
1105: used = 0;
1106:
1107: while ( (used++ < 1000) &&
1108: (layer = DecoderReadByte(card, 0x041)) & 0x03){
1109: card->DataFifo[card->DataFifoHead] = ((layer << 6) & 0x0300) | DecoderReadByte(card, 0x043);
1110: card->DataFifoHead = (card->DataFifoHead + 1) & FIFO_MASK;
1111: }
1112: if (used < 1000 ) DecoderReadDataFifo(card);
1113: }
1114:
1115: if ((intr[0] & 0x01) != card->intdecodestatus) { // decode status
1116: card->intdecodestatus = intr[0] & 0x01;
1117: printk(KERN_DEBUG LOGNAME ": Int - decode status now %s\n", ((card->intdecodestatus) ? "running" : "stopped"));
1118: if (card->intdecodestatus) { // now running
1119: // DecoderSetVideoPanic(card, 1, 3); // video panic at 3 pictures
1120: DecoderSetVideoPanic(card, 0, card->VideoESSize / 4);
1121: card->showvideo = 1;
1122: //VideoSetBackground(card, 0, 0, 0, 0); // Video on black
1123: } else { // now stopped
1124: if (card->closing) {
1125: card->closing = 0;
1126: CloseCard(card);
1127: }
1128: }
1129:
1130: }
1131:
1132: // if (intr[1] & 0x80) { // SCR compare
1133: //printk(KERN_DEBUG LOGNAME ": Int - SCR compare\n");
1134: //DecoderDelByte(card, 0x013, 0x02);
1135: //VideoSetBackground(card, 0, 0, 0, 0); // Video on black
1136: // }
1137: // if (intr[1] & 0x40) { // SCR Overflow
1138: //printk(KERN_DEBUG LOGNAME ": Int - SCR Overflow\n");
1139: // }
1140: // if (intr[1] & 0x20) { // Begin Vertical Blank
1141: // }
1142: if (intr[1] & 0x10) { // Begin Active Video
1143: if (card->highlight_valid) {
1144: for (i = 0; i < 10; i++) DecoderWriteByte(card, 0x1C0 + i, card->highlight[i]);
1145: card->highlight_valid = 0;
1146: }
1147: }
1148: //if (intr[1] & 0x08) { // SPU Start Code Detected
1149: //printk(KERN_DEBUG LOGNAME ": Int - SPU Start Code Detected\n");
1150: //}
1151: if (intr[1] & 0x04) { // SCR compare audio
1152: printk(KERN_DEBUG LOGNAME ": Int - SCR compare audio\n");
1153: DecoderDelByte(card, 0x013, 0x01);
1154: AudioStart(card);
1155: }
1156: // both follwing are used in A/V-sync below
1157: // if (intr[1] & 0x02) { // picture start code detected
1158: //printk(KERN_DEBUG LOGNAME ": Int - picture start code detected\n");
1159: // }
1160: // if (intr[1] & 0x01) { // audio sync code detected
1161: //printk(KERN_DEBUG LOGNAME ": Int - audio sync code detected\n");
1162: // }
1163:
1164: // if (! card->stream.audio.valid) DecoderReadAudioInfo(card);
1165:
1166: if (intr[2] & 0x20) { // DSI PES data ready
1167: //printk(KERN_DEBUG LOGNAME ": Int - DSI PES data ready\n");
1168: DecoderReadNavipack(card);
1169: }
1170:
1171: if (intr[2] & 0x06) { // Audio / Video PES data ready
1172: ReadPESHeaders(card);
1173: }
1174:
1175: if (intr[3] & 0x40) { // CSS
1176: card->css.status = DecoderReadByte(card, 0x0B0);
1177: printk(KERN_DEBUG LOGNAME ": Int - CSS Status 0x%02X\n", card->css.status);
1178: if (card->css.status&0x01) card->css.ChallengeReady = 1; // challenge ready
1179: if (card->css.status&0x02) card->css.ResponseReady = 1; // response ready
1180: if (card->css.status&0x04) card->css.DiskKey = 1; // Disk key ready
1181: if (card->css.status&0x08) card->css.Error = 1; // Disk key error
1182: if (card->css.status&0x10) card->css.TitleKey = 1; // Title key ready
1183: if (card->css.status&0x20) card->css.TitleKeyDiff = 1; // Title key error
1184: }
1185:
1186:
1187: if (intr[3] & 0x30) { // Audio/Video ES channel buffer underflow
1188: //printk(KERN_DEBUG LOGNAME ": Int - ES channel buffer underflow\n");
1189: if (card->closing) {
1190: card->closing = 0;
1191: CloseCard(card);
1192: }
1193: }
1194:
1195: // if (intr[3] & 0x08) { // Data Dump channel PES data ready
1196: // }
1197:
1198: if (intr[4] & 0x10 ) { // SPU decode error
1199: printk(KERN_DEBUG LOGNAME ": Int - SPU decode error: (1CA)=0x%02X\n", DecoderReadByte(card, 0x1CA));
1200: DecoderDelByte(card, 0x1A0, 0x01); // SPU decode stop
1201: DecoderSetByte(card, 0x1A0, 0x01); // SPU decode start
1202: }
1203:
1204: // Audio / Video Syncronisation
1205:
1206: if (card->videosync && !card->videorip && !card->videodelay && !card->slowdown) {
1207: SCR_base = DecoderReadSCR(card, 0x009);
1208: SCR_compareV = DecoderReadSCR(card, 0x00D);
1209: //printk(KERN_DEBUG LOGNAME ": Sync: SCR = %08X\n", SCR_compareV);
1210: if (intr[1] & 0x02) { // picture start code detected
1211: //printk(KERN_DEBUG LOGNAME ": Sync: picture start code\n");
1212: DecoderMaskByte(card, 0x011, 0x03, 0x01); // Set SCR compare/capture mode to capture
1213: DecoderSetByte(card, 0x11, 0x04); // Set "capture on picture start"
1214: if (intr[1] & 0x01) { // audio sync code detected
1215: //printk(KERN_DEBUG LOGNAME ": Sync: audio sync code, too\n");
1216: DecoderSetByte(card, 0x11, 0x08); // Set "capture on audio sync code"
1217: }
1218: VideoAddr = DecoderReadRWAddr(card,0x080);
1219: if (PTSGetPTS(&card->VideoPTSStore, VideoAddr, &PTS)) {
1220: //printk(KERN_DEBUG LOGNAME ": Sync: video PTS found for 0x%08X = %08X\n", VideoAddr, PTS);
1221: card->oldVPTS = card->VPTS;
1222: card->VPTS = PTS;
1223: card->VSCR = ((long)SCR_compareV - (long)PTS) / 2;
1224: // card->VideoTime = ISRTime;
1225: }
1226: } else if (intr[1] & 0x01) { // audio sync code detected
1227: //printk(KERN_DEBUG LOGNAME ": Sync: audio sync code, only\n");
1228: DecoderMaskByte(card, 0x011, 0x03, 0x01); // Set SCR compare/capture mode to capture
1229: DecoderSetByte(card, 0x11, 0x08); // Set "capture on audio sync code"
1230: AudioAddr = DecoderReadRWAddr(card,0x083);
1231: //printk(KERN_DEBUG LOGNAME ": Sync: audio PTS search for 0x%08X\n", AudioAddr);
1232: if (PTSGetPTS(&card->AudioPTSStore, AudioAddr, &PTS)) {
1233: //printk(KERN_DEBUG LOGNAME ": Sync: audio PTS found for 0x%08X = %08X\n", AudioAddr, PTS);
1234: card->oldAPTS = card->APTS;
1235: card->APTS = PTS;
1236: card->ASCR = ((long)SCR_compareV - (long)PTS) / 2;
1237: // card->AudioTime = ISRTime;
1238: } else {
1239: card->ASCR = 0x7FFFFFFF;
1240: }
1241:
1242: if (card->VSCR != 0x7FFFFFFF) {
1243: if (card->ASCR != 0x7FFFFFFF) {
1244: DeltaSyncTime = ISRTime - card->SyncTime;
1245: card->SyncTime = ISRTime;
1246:
1247: // Calculate Audio and Video SCR difference
1248: Offset = (card->ASCR - card->VSCR - (10 * 736)) / 736;
1249: //printk(KERN_DEBUG LOGNAME ": Sync: compare SCRs: Audio = %ld Video = %ld -> %ld\n", card->ASCR, card->VSCR, Offset);
1250:
1251: // if the APTS and SCR are off update SCR to keep SubPic synced
1252: if ((SCR_compareV > card->APTS) || ((card->APTS - SCR_compareV) > 10000)) {
1253: Offset = 0;
1254: SetSCR(card, card->APTS);
1255: }
1256:
1257: // if more than 3 frames away
1258: if ((Offset > 3) || (Offset < -3)) {
1259: if (Offset > 0 ) {
1260: card->videodelay = 0;
1261: if (Offset < 100) {
1262: if (Offset < 10) {
1263: card->videodelay = 1;
1264: } else {
1265: card->videodelay = Offset / 2;
1266: if (card->videodelay > 20) {
1267: card->videodelay = 20;
1268: }
1269: }
1270: printk(KERN_DEBUG LOGNAME ": <<< Pausing %d\n", card->videodelay);
1271: } else {
1272: }
1273: } else {
1274: card->videorip = 0;
1275: if (Offset > -100) {
1276: if (Offset < -10) {
1277: card->videorip = 10;
1278: } else {
1279: card->videorip = 3;
1280: }
1281: printk(KERN_DEBUG LOGNAME ": >>> FForward %d\n", card->videorip);
1282: }
1283: }
1284: } else {
1285: }
1286: card->VSCR = 0x7FFFFFFF;
1287: }
1288: }
1289: }
1290: }
1291: }
1292: DecoderWriteByte(card, 0x006, 0x01); // Clear Interrupt Pin
1293: }
1294:
1295: // Enable the IRQ Masks
1296: void L64021InstallIntr(struct cvdv_cards *card) {
1297: u8 data;
1298:
1299: data=0;
1300: data |= 0x80; // new field
1301: data |= 0x40; // audio sync recovery
1302: data |= 0x20; // SPU SCR compare
1303: // data |= 0x10; // SDRAM Transfer Done
1304: // data |= 0x08; // Sequence End Code Detect
1305: data |= 0x04; // First Slice Start Code
1306: data |= 0x02; // Aux/User Data Fifo
1307: data |= 0x01; // decode status
1308: DecoderWriteByte(card, 0x000, (~data) & 0xFF);
1309:
1310: data = 0;
1311: // data |= 0x80; // SCR compare
1312: // data |= 0x40; // SCR Overflow
1313: // data |= 0x20; // Begin Vertical Blank
1314: data |= 0x10; // Begin Active Video
1315: data |= 0x08; // SPU Start Code Detected
1316: data |= 0x04; // SCR compare audio
1317: data |= 0x02; // picture start code detected
1318: data |= 0x01; // audio sync code detected
1319: DecoderWriteByte(card, 0x001, (~data) & 0xFF);
1320:
1321: data = 0;
1322: // data |= 0x80; // DTS video event
1323: // data |= 0x40; // DTS audio event
1324: data |= 0x20; // DSI PES data ready
1325: // data |= 0x10; // Seq end code in video channel
1326: data |= 0x08; // SPU PES data ready
1327: data |= 0x04; // Video PES data ready
1328: data |= 0x02; // Audio PES data ready
1329: // data |= 0x01; // Pack data ready
1330: DecoderWriteByte(card, 0x002, (~data) & 0xFF);
1331:
1332: data = 0;
1333: // data |= 0x80; // Reserved
1334: data |= 0x40; // CSS
1335: data |= 0x20; // Video ES channel buffer underflow
1336: data |= 0x10; // Audio ES channel buffer underflow
1337: // data |= 0x08; // Data Dump channel PES data ready
1338: data |= 0x04; // SPU channel buffer overflow
1339: data |= 0x02; // Video ES channel buffer overflow
1340: data |= 0x01; // Audio ES channel buffer overflow
1341: DecoderWriteByte(card, 0x003, (~data) & 0xFF);
1342:
1343: data = 0;
1344: // data |= 0x80; // S/PDIF channel buffer underflow
1345: // data |= 0x40; // packet error
1346: // data |= 0x20; // reserved
1347: data |= 0x10; // SPU decode error
1348: // data |= 0x08; // Audio Sync error
1349: // data |= 0x04; // Audio CRC or illegal bit error
1350: // data |= 0x02; // context error
1351: // data |= 0x01; // VLC or Run length error
1352: DecoderWriteByte(card, 0x004, (~data) & 0xFF);
1353: card->IntInstalled = 1;
1354: }
1355:
1356: int L64021RemoveIntr(struct cvdv_cards *card) {
1357: // Disable the IRQ Masks
1358: DecoderWriteByte(card, 0x000, 0xFF); // No ints
1359: DecoderWriteByte(card, 0x001, 0xFF); // No ints
1360: DecoderWriteByte(card, 0x002, 0xFF); // No ints
1361: DecoderWriteByte(card, 0x003, 0xFF); // No ints
1362: DecoderWriteByte(card, 0x004, 0xFF); // No ints
1363: card->IntInstalled = 0;
1364: return 0;
1365: }
1366:
1367: int L64021Reset(struct cvdv_cards *card) {
1368: L64021RemoveIntr(card); // Stop interrupts
1369: // Reset
1370: printk(KERN_DEBUG LOGNAME ": L64021 Software reset...\n");
1371: //DecoderSetByte(card, 0x007, 0x20); // reset on
1372: DecoderMaskByte(card, 0x007, 0xE2, 0xE2); // reset on
1373: while (!(DecoderReadByte(card, 0x007) & 0x02)) ; // wait until reset is done
1374: //DecoderDelByte(card, 0x007, 0x20); // reset off
1375: DecoderMaskByte(card, 0x007, 0xE2, 0xC2); // reset off
1376: printk(KERN_DEBUG LOGNAME ": L64021 Software reset done.\n");
1377: L64021RemoveIntr(card); // Stop interrupts
1378: DecoderStopChannel(card);
1379: DecoderStopDecode(card);
1380: DecoderStreamReset(card);
1381: DecoderSetupReset(card);
1382: printk(KERN_INFO LOGNAME ": L64021 Rev. 0x%02X reset successfully.\n", DecoderReadByte(card, 0x0F5));
1383: return 0;
1384: }
1385:
1386: int L64021Setup(struct cvdv_cards *card) {
1387: printk(KERN_DEBUG LOGNAME ": -- L64021Setup\n");
1388: DecoderWriteByte(card, 0x0C1, 0x88); //
1389: switch (card->videomode) {
1390: case NTSC: // NTSC M, N. America, Taiwan, Japan
1391: DecoderMaskByte(card, 0x122, 0x03, 0x01); // Television Standard: NTSC
1392: /* Default values:
1393: DecoderWriteByte(card, 0x116, 90); // Main Reads per Line
1394: DecoderWriteByte(card, 0x11A, 4); // Vline Count Init
1395: DecoderWriteByte(card, 0x11C, 0x13); // Pixel State Reset Value / BT.656 Mode / Sync Active Low
1396: DecoderWriteByte(card, 0x129, 23); // Start- and End Row
1397: DecoderWriteByte(card, 0x12A, 262 & 0xFF);
1398: DecoderWriteByte(card, 0x12B, (262>>4)&0x70);
1399: DecoderWriteByte(card, 0x12C, 244 & 0xFF); // Start- and End Column
1400: DecoderWriteByte(card, 0x12D, 1683 & 0xFF);
1401: DecoderWriteByte(card, 0x12E, ((1683>>4)&0x70)|((244>>8)&0x07));
1402: DecoderWriteByte(card, 0x132, 240 & 0xFF); // SAV Column
1403: DecoderWriteByte(card, 0x133, 1684 & 0xFF); // EAV Column
1404: DecoderWriteByte(card, 0x134, ((1684>>4)&0x70)|((240>>8)&0x07));
1405: DecoderWriteByte(card, 0x12F, (21&0x1F)|((262>>3)&0x20)|(1<<6)|((265>>1)&0x80)); // VCode Zero...
1406: DecoderWriteByte(card, 0x130, 262&0xFF); // ... and VCode Even
1407: DecoderWriteByte(card, 0x131, 265&0xFF); // ... and FCode
1408: */
1409: break;
1410: case PAL: // PAL-B, D, G, H, I, Europe, Asia
1411: DecoderMaskByte(card, 0x122, 0x03, 0x02); // Television Standard: PAL
1412: /* Default values:
1413: DecoderWriteByte(card, 0x116, 90); // Main Reads per Line
1414: DecoderWriteByte(card, 0x11A, 1); // Vline Count Init
1415: DecoderWriteByte(card, 0x11C, 0x13); // Pixel State Reset Value / BT.656 Mode / Sync Active Low
1416: DecoderWriteByte(card, 0x129, 23); // Start- and End Row
1417: DecoderWriteByte(card, 0x12A, 310 & 0xFF);
1418: DecoderWriteByte(card, 0x12B, (310>>4)&0x70);
1419: DecoderWriteByte(card, 0x12C, 264 & 0xFF); // Start- and End Column
1420: DecoderWriteByte(card, 0x12D, 1703 & 0xFF);
1421: DecoderWriteByte(card, 0x12E, ((1703>>4)&0x70)|((264>>8)&0x07));
1422: DecoderWriteByte(card, 0x132, 260 & 0xFF); // SAV Column
1423: DecoderWriteByte(card, 0x133, 1704 & 0xFF); // EAV Column
1424: DecoderWriteByte(card, 0x134, ((1704>>4)&0x70)|((260>>8)&0x07));
1425: DecoderWriteByte(card, 0x12F, (21&0x1F)|((310>>3)&0x20)|(0<<6)|((312>>1)&0x80)); // VCode Zero...
1426: DecoderWriteByte(card, 0x130, 310&0xFF); // ... and VCode Even
1427: DecoderWriteByte(card, 0x131, 312&0xFF); // ... and FCode
1428: */
1429: break;
1430: case PAL60: // PAL 60Hz
1431: case NTSC60: // NTSC 60Hz, USA HDTV
1432: case PALM: // PAL-M normal, Brazil
1433: case PALM60: // PAL-M HDTV, Brazil
1434: case PALN: // PAL-N, Uruguay, Paraguay
1435: case PALNc: // PAL-Nc, Argentinia
1436: default: // TODO: set mode according to other standards
1437: DecoderMaskByte(card, 0x122, 0x03, 0x00); // Television Standard: User programmed
1438: DecoderWriteByte(card, 0x116, 90); // Main Reads per Line
1439: DecoderWriteByte(card, 0x11A, 1); // Vline Count Init
1440: DecoderWriteByte(card, 0x11C, 0x13); // Pixel State Reset Value / BT.656 Mode / Sync Active Low
1441: DecoderWriteByte(card, 0x129, 23); // Start- and End Row
1442: DecoderWriteByte(card, 0x12A, 310 & 0xFF);
1443: DecoderWriteByte(card, 0x12B, (310>>4)&0x70);
1444: DecoderWriteByte(card, 0x12C, 264 & 0xFF); // Start- and End Column
1445: DecoderWriteByte(card, 0x12D, 1703 & 0xFF);
1446: DecoderWriteByte(card, 0x12E, ((1703>>4)&0x70)|((264>>8)&0x07));
1447: DecoderWriteByte(card, 0x132, 260 & 0xFF); // SAV Column
1448: DecoderWriteByte(card, 0x133, 1704 & 0xFF); // EAV Column
1449: DecoderWriteByte(card, 0x134, ((1704>>4)&0x70)|((260>>8)&0x07));
1450: DecoderWriteByte(card, 0x12F, (21&0x1F)|((310>>3)&0x20)|(0<<6)|((312>>1)&0x80)); // VCode Zero...
1451: DecoderWriteByte(card, 0x130, 310&0xFF); // ... and VCode Even
1452: DecoderWriteByte(card, 0x131, 312&0xFF); // ... and FCode
1453: break;
1454: }
1455: DecoderWriteByte(card, 0x045, 0x00); // disable compares and panic mode
1456: DecoderWriteByte(card, 0x094, 0x00); // disable TOS Detect
1457: DecoderMaskByte(card, 0x109, 0x30, 0x00); // Display Override off, don't change OSD, Background
1458: DecoderWriteByte(card, 0x112, 0x00); // Disable Horizontal 2:1 Filter
1459: DecoderWriteByte(card, 0x113, 0x14); // FreezeMode 1 / 3:2 Pulldown / Repeat First Field / Top Field First
1460: DecoderWriteByte(card, 0x114, ( 5 <<3)|( 0 <<1)|( 0 <<2)|( 1 <<7)); // VideoMode/FilterEnable/FilterAB/FieldSyncEnable
1461: DecoderWriteByte(card, 0x115, 0); // Horizontal Filter Scale
1462: DecoderWriteByte(card, 0x117, 0x80); // Automatic Field Inversion Correction
1463: // DecoderWriteByte(card, 0x117, 0x00); // no Automatic Field Inversion Correction
1464: DecoderWriteByte(card, 0x118, 0); // Horizontal Pan and Scan Word Offset (signed)
1465: DecoderWriteByte(card, 0x119, 0); // Vertical Pan and Scan Line Offset
1466: DecoderWriteByte(card, 0x11B, 0x00); // Override Picture Width
1467: // if (0) { // letterbox
1468: // DecoderWriteByte(card, 0x114, (DecoderReadByte(card, 0x114) & ~0x78) | 0x40); // mode 8
1469: // DecoderWriteByte(card, 0x129, 0x35);
1470: // DecoderWriteByte(card, 0x12A, 0xE7);
1471: // DecoderWriteByte(card, 0x114, DecoderReadByte(card, 0x114) & ~0x77); // ???
1472: // } else {
1473: // if (0) { // MPEG-1
1474: // DecoderWriteByte(card, 0x114, (DecoderReadByte(card, 0x114) & ~0x78) | 0x10); // mode 2
1475: // } else { // MPEG-2
1476: // DecoderWriteByte(card, 0x114, (DecoderReadByte(card, 0x114) & ~0x78) | 0x28); // mode 5
1477: // }
1478: // }
1479: L64021InstallIntr(card); // Set the interrupt masks, again
1480:
1481: return 0;
1482: }
1483:
1484: int L64021Init(struct cvdv_cards *card) {
1485: printk(KERN_DEBUG LOGNAME ": -- L64021Init\n");
1486: L64021Reset(card);
1487: L64021Setup(card);
1488: VideoSetBackground(card, 1, 0, 0, 0); // black
1489: DecoderWriteByte(card, 0x135, 0x01); // Enable Video Out, Disable SPU Mix
1490: DecoderWriteByte(card,0x11C,0x13); // Pixel State Reset Value / BT.656 Mode / Sync Active Low
1491: L64021InstallIntr(card);
1492: return 0;
1493: }
1494:
1495:
LinuxTV legacy CVS <linuxtv.org/cvs>