drivers/media/pci/ttpci/av7110_av.c

   1 /*
   2  * av7110_av.c: audio and video MPEG decoder stuff
   3  *
   4  * Copyright (C) 1999-2002 Ralph  Metzler
   5  *                       & Marcus Metzler for convergence integrated media GmbH
   6  *
   7  * originally based on code by:
   8  * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * To obtain the license, point your browser to
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  *
  25  * the project's page is at https://linuxtv.org
  26  */
  27
  28 #include <linux/types.h>
  29 #include <linux/kernel.h>
  30 #include <linux/string.h>
  31 #include <linux/delay.h>
  32 #include <linux/fs.h>
  33
  34 #include "av7110.h"
  35 #include "av7110_hw.h"
  36 #include "av7110_av.h"
  37 #include "av7110_ipack.h"
  38
  39 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
  40 #define PROG_STREAM_MAP  0xBC
  41 #define PRIVATE_STREAM1  0xBD
  42 #define PADDING_STREAM   0xBE
  43 #define PRIVATE_STREAM2  0xBF
  44 #define AUDIO_STREAM_S   0xC0
  45 #define AUDIO_STREAM_E   0xDF
  46 #define VIDEO_STREAM_S   0xE0
  47 #define VIDEO_STREAM_E   0xEF
  48 #define ECM_STREAM       0xF0
  49 #define EMM_STREAM       0xF1
  50 #define DSM_CC_STREAM    0xF2
  51 #define ISO13522_STREAM  0xF3
  52 #define PROG_STREAM_DIR  0xFF
  53
  54 #define PTS_DTS_FLAGS    0xC0
  55
  56 //pts_dts flags
  57 #define PTS_ONLY         0x80
  58 #define PTS_DTS          0xC0
  59 #define TS_SIZE          188
  60 #define TRANS_ERROR      0x80
  61 #define PAY_START        0x40
  62 #define TRANS_PRIO       0x20
  63 #define PID_MASK_HI      0x1F
  64 //flags
  65 #define TRANS_SCRMBL1    0x80
  66 #define TRANS_SCRMBL2    0x40
  67 #define ADAPT_FIELD      0x20
  68 #define PAYLOAD          0x10
  69 #define COUNT_MASK       0x0F
  70
  71 // adaptation flags
  72 #define DISCON_IND       0x80
  73 #define RAND_ACC_IND     0x40
  74 #define ES_PRI_IND       0x20
  75 #define PCR_FLAG         0x10
  76 #define OPCR_FLAG        0x08
  77 #define SPLICE_FLAG      0x04
  78 #define TRANS_PRIV       0x02
  79 #define ADAP_EXT_FLAG    0x01
  80
  81 // adaptation extension flags
  82 #define LTW_FLAG         0x80
  83 #define PIECE_RATE       0x40
  84 #define SEAM_SPLICE      0x20
  85
  86
  87 static void p_to_t(u8 const *buf, long int length, u16 pid,
  88                    u8 *counter, struct dvb_demux_feed *feed);
  89 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
  90
  91
  92 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
  93 {
  94         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
  95
  96         if (!(dvbdmxfeed->ts_type & TS_PACKET))
  97                 return 0;
  98         if (buf[3] == 0xe0)      // video PES do not have a length in TS
  99                 buf[4] = buf[5] = 0;
 100         if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
 101                 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
 102                                          &dvbdmxfeed->feed.ts);
 103         else
 104                 return dvb_filter_pes2ts(p2t, buf, len, 1);
 105 }
 106
 107 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
 108 {
 109         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
 110
 111         dvbdmxfeed->cb.ts(data, 188, NULL, 0,
 112                           &dvbdmxfeed->feed.ts);
 113         return 0;
 114 }
 115
 116 int av7110_av_start_record(struct av7110 *av7110, int av,
 117                            struct dvb_demux_feed *dvbdmxfeed)
 118 {
 119         int ret = 0;
 120         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 121
 122         dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
 123
 124         if (av7110->playing || (av7110->rec_mode & av))
 125                 return -EBUSY;
 126         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 127         dvbdmx->recording = 1;
 128         av7110->rec_mode |= av;
 129
 130         switch (av7110->rec_mode) {
 131         case RP_AUDIO:
 132                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 133                                        dvbdmx->pesfilter[0]->pid,
 134                                        dvb_filter_pes2ts_cb,
 135                                        (void *) dvbdmx->pesfilter[0]);
 136                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 137                 break;
 138
 139         case RP_VIDEO:
 140                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 141                                        dvbdmx->pesfilter[1]->pid,
 142                                        dvb_filter_pes2ts_cb,
 143                                        (void *) dvbdmx->pesfilter[1]);
 144                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 145                 break;
 146
 147         case RP_AV:
 148                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 149                                        dvbdmx->pesfilter[0]->pid,
 150                                        dvb_filter_pes2ts_cb,
 151                                        (void *) dvbdmx->pesfilter[0]);
 152                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 153                                        dvbdmx->pesfilter[1]->pid,
 154                                        dvb_filter_pes2ts_cb,
 155                                        (void *) dvbdmx->pesfilter[1]);
 156                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
 157                 break;
 158         }
 159         return ret;
 160 }
 161
 162 int av7110_av_start_play(struct av7110 *av7110, int av)
 163 {
 164         int ret = 0;
 165         dprintk(2, "av7110:%p, \n", av7110);
 166
 167         if (av7110->rec_mode)
 168                 return -EBUSY;
 169         if (av7110->playing & av)
 170                 return -EBUSY;
 171
 172         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 173
 174         if (av7110->playing == RP_NONE) {
 175                 av7110_ipack_reset(&av7110->ipack[0]);
 176                 av7110_ipack_reset(&av7110->ipack[1]);
 177         }
 178
 179         av7110->playing |= av;
 180         switch (av7110->playing) {
 181         case RP_AUDIO:
 182                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 183                 break;
 184         case RP_VIDEO:
 185                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 186                 av7110->sinfo = 0;
 187                 break;
 188         case RP_AV:
 189                 av7110->sinfo = 0;
 190                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
 191                 break;
 192         }
 193         return ret;
 194 }
 195
 196 int av7110_av_stop(struct av7110 *av7110, int av)
 197 {
 198         int ret = 0;
 199         dprintk(2, "av7110:%p, \n", av7110);
 200
 201         if (!(av7110->playing & av) && !(av7110->rec_mode & av))
 202                 return 0;
 203         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 204         if (av7110->playing) {
 205                 av7110->playing &= ~av;
 206                 switch (av7110->playing) {
 207                 case RP_AUDIO:
 208                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 209                         break;
 210                 case RP_VIDEO:
 211                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 212                         break;
 213                 case RP_NONE:
 214                         ret = av7110_set_vidmode(av7110, av7110->vidmode);
 215                         break;
 216                 }
 217         } else {
 218                 av7110->rec_mode &= ~av;
 219                 switch (av7110->rec_mode) {
 220                 case RP_AUDIO:
 221                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 222                         break;
 223                 case RP_VIDEO:
 224                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 225                         break;
 226                 case RP_NONE:
 227                         break;
 228                 }
 229         }
 230         return ret;
 231 }
 232
 233
 234 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
 235 {
 236         int len;
 237         u32 sync;
 238         u16 blen;
 239
 240         if (!dlen) {
 241                 wake_up(&buf->queue);
 242                 return -1;
 243         }
 244         while (1) {
 245                 len = dvb_ringbuffer_avail(buf);
 246                 if (len < 6) {
 247                         wake_up(&buf->queue);
 248                         return -1;
 249                 }
 250                 sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
 251                 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
 252                 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
 253                 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
 254
 255                 if (((sync &~ 0x0f) == 0x000001e0) ||
 256                     ((sync &~ 0x1f) == 0x000001c0) ||
 257                     (sync == 0x000001bd))
 258                         break;
 259                 printk("resync\n");
 260                 DVB_RINGBUFFER_SKIP(buf, 1);
 261         }
 262         blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
 263         blen |= DVB_RINGBUFFER_PEEK(buf, 5);
 264         blen += 6;
 265         if (len < blen || blen > dlen) {
 266                 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
 267                 wake_up(&buf->queue);
 268                 return -1;
 269         }
 270
 271         dvb_ringbuffer_read(buf, dest, (size_t) blen);
 272
 273         dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
 274                (unsigned long) buf->pread, (unsigned long) buf->pwrite);
 275         wake_up(&buf->queue);
 276         return blen;
 277 }
 278
 279
 280 int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
 281                       unsigned int volright)
 282 {
 283         unsigned int vol, val, balance = 0;
 284         int err;
 285
 286         dprintk(2, "av7110:%p, \n", av7110);
 287
 288         av7110->mixer.volume_left = volleft;
 289         av7110->mixer.volume_right = volright;
 290
 291         switch (av7110->adac_type) {
 292         case DVB_ADAC_TI:
 293                 volleft = (volleft * 256) / 1036;
 294                 volright = (volright * 256) / 1036;
 295                 if (volleft > 0x3f)
 296                         volleft = 0x3f;
 297                 if (volright > 0x3f)
 298                         volright = 0x3f;
 299                 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 300                         return err;
 301                 return SendDAC(av7110, 4, volright);
 302
 303         case DVB_ADAC_CRYSTAL:
 304                 volleft = 127 - volleft / 2;
 305                 volright = 127 - volright / 2;
 306                 i2c_writereg(av7110, 0x20, 0x03, volleft);
 307                 i2c_writereg(av7110, 0x20, 0x04, volright);
 308                 return 0;
 309
 310         case DVB_ADAC_MSP34x0:
 311                 vol  = (volleft > volright) ? volleft : volright;
 312                 val     = (vol * 0x73 / 255) << 8;
 313                 if (vol > 0)
 314                        balance = ((volright - volleft) * 127) / vol;
 315                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 316                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 317                 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 318                 return 0;
 319
 320         case DVB_ADAC_MSP34x5:
 321                 vol = (volleft > volright) ? volleft : volright;
 322                 val = (vol * 0x73 / 255) << 8;
 323                 if (vol > 0)
 324                         balance = ((volright - volleft) * 127) / vol;
 325                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 326                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 327                 return 0;
 328         }
 329
 330         return 0;
 331 }
 332
 333 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 334 {
 335         int ret;
 336         dprintk(2, "av7110:%p, \n", av7110);
 337
 338         ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 339
 340         if (!ret && !av7110->playing) {
 341                 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 342                            av7110->pids[DMX_PES_AUDIO],
 343                            av7110->pids[DMX_PES_TELETEXT],
 344                            0, av7110->pids[DMX_PES_PCR]);
 345                 if (!ret)
 346                         ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 347         }
 348         return ret;
 349 }
 350
 351
 352 static enum av7110_video_mode sw2mode[16] = {
 353         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 354         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 355         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 356         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 357         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 358         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 359         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 360         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 361 };
 362
 363 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 364 {
 365         int i;
 366         int hsize, vsize;
 367         int sw;
 368         u8 *p;
 369         int ret = 0;
 370
 371         dprintk(2, "av7110:%p, \n", av7110);
 372
 373         if (av7110->sinfo)
 374                 return 0;
 375         for (i = 7; i < count - 10; i++) {
 376                 p = buf + i;
 377                 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 378                         continue;
 379                 p += 4;
 380                 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 381                 vsize = ((p[1] &0x0F) << 8) | (p[2]);
 382                 sw = (p[3] & 0x0F);
 383                 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 384                 if (!ret) {
 385                         dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 386                         av7110->sinfo = 1;
 387                 }
 388                 break;
 389         }
 390         return ret;
 391 }
 392
 393
 394 /****************************************************************************
 395  * I/O buffer management and control
 396  ****************************************************************************/
 397
 398 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 399                                          const u8 *buf, unsigned long count)
 400 {
 401         unsigned long todo = count;
 402         int free;
 403
 404         while (todo > 0) {
 405                 if (dvb_ringbuffer_free(rbuf) < 2048) {
 406                         if (wait_event_interruptible(rbuf->queue,
 407                                                      (dvb_ringbuffer_free(rbuf) >= 2048)))
 408                                 return count - todo;
 409                 }
 410                 free = dvb_ringbuffer_free(rbuf);
 411                 if (free > todo)
 412                         free = todo;
 413                 dvb_ringbuffer_write(rbuf, buf, free);
 414                 todo -= free;
 415                 buf += free;
 416         }
 417
 418         return count - todo;
 419 }
 420
 421 static void play_video_cb(u8 *buf, int count, void *priv)
 422 {
 423         struct av7110 *av7110 = (struct av7110 *) priv;
 424         dprintk(2, "av7110:%p, \n", av7110);
 425
 426         if ((buf[3] & 0xe0) == 0xe0) {
 427                 get_video_format(av7110, buf, count);
 428                 aux_ring_buffer_write(&av7110->avout, buf, count);
 429         } else
 430                 aux_ring_buffer_write(&av7110->aout, buf, count);
 431 }
 432
 433 static void play_audio_cb(u8 *buf, int count, void *priv)
 434 {
 435         struct av7110 *av7110 = (struct av7110 *) priv;
 436         dprintk(2, "av7110:%p, \n", av7110);
 437
 438         aux_ring_buffer_write(&av7110->aout, buf, count);
 439 }
 440
 441
 442 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
 443
 444 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
 445                        unsigned long count, int nonblock, int type)
 446 {
 447         struct dvb_ringbuffer *rb;
 448         u8 *kb;
 449         unsigned long todo = count;
 450
 451         dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
 452
 453         rb = (type) ? &av7110->avout : &av7110->aout;
 454         kb = av7110->kbuf[type];
 455
 456         if (!kb)
 457                 return -ENOBUFS;
 458
 459         if (nonblock && !FREE_COND_TS)
 460                 return -EWOULDBLOCK;
 461
 462         while (todo >= TS_SIZE) {
 463                 if (!FREE_COND_TS) {
 464                         if (nonblock)
 465                                 return count - todo;
 466                         if (wait_event_interruptible(rb->queue, FREE_COND_TS))
 467                                 return count - todo;
 468                 }
 469                 if (copy_from_user(kb, buf, TS_SIZE))
 470                         return -EFAULT;
 471                 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
 472                 todo -= TS_SIZE;
 473                 buf += TS_SIZE;
 474         }
 475
 476         return count - todo;
 477 }
 478
 479
 480 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 481                    dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 482
 483 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 484                         unsigned long count, int nonblock, int type)
 485 {
 486         unsigned long todo = count, n;
 487         dprintk(2, "av7110:%p, \n", av7110);
 488
 489         if (!av7110->kbuf[type])
 490                 return -ENOBUFS;
 491
 492         if (nonblock && !FREE_COND)
 493                 return -EWOULDBLOCK;
 494
 495         while (todo > 0) {
 496                 if (!FREE_COND) {
 497                         if (nonblock)
 498                                 return count - todo;
 499                         if (wait_event_interruptible(av7110->avout.queue,
 500                                                      FREE_COND))
 501                                 return count - todo;
 502                 }
 503                 n = todo;
 504                 if (n > IPACKS * 2)
 505                         n = IPACKS * 2;
 506                 if (copy_from_user(av7110->kbuf[type], buf, n))
 507                         return -EFAULT;
 508                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 509                                             &av7110->ipack[type]);
 510                 todo -= n;
 511                 buf += n;
 512         }
 513         return count - todo;
 514 }
 515
 516 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 517                         unsigned long count, int nonblock, int type)
 518 {
 519         unsigned long todo = count, n;
 520         dprintk(2, "av7110:%p, \n", av7110);
 521
 522         if (!av7110->kbuf[type])
 523                 return -ENOBUFS;
 524
 525         if (nonblock && !FREE_COND)
 526                 return -EWOULDBLOCK;
 527
 528         while (todo > 0) {
 529                 if (!FREE_COND) {
 530                         if (nonblock)
 531                                 return count - todo;
 532                         if (wait_event_interruptible(av7110->avout.queue,
 533                                                      FREE_COND))
 534                                 return count - todo;
 535                 }
 536                 n = todo;
 537                 if (n > IPACKS * 2)
 538                         n = IPACKS * 2;
 539                 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 540                 todo -= n;
 541                 buf += n;
 542         }
 543         return count - todo;
 544 }
 545
 546 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 547                          unsigned long count, int nonblock, int type)
 548 {
 549         unsigned long todo = count, n;
 550         dprintk(2, "av7110:%p, \n", av7110);
 551
 552         if (!av7110->kbuf[type])
 553                 return -ENOBUFS;
 554         if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 555                 return -EWOULDBLOCK;
 556
 557         while (todo > 0) {
 558                 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 559                         if (nonblock)
 560                                 return count - todo;
 561                         if (wait_event_interruptible(av7110->aout.queue,
 562                                         (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 563                                 return count-todo;
 564                 }
 565                 n = todo;
 566                 if (n > IPACKS * 2)
 567                         n = IPACKS * 2;
 568                 if (copy_from_user(av7110->kbuf[type], buf, n))
 569                         return -EFAULT;
 570                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 571                                             &av7110->ipack[type]);
 572                 todo -= n;
 573                 buf += n;
 574         }
 575         return count - todo;
 576 }
 577
 578 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 579 {
 580         memset(p->pes, 0, TS_SIZE);
 581         p->counter = 0;
 582         p->pos = 0;
 583         p->frags = 0;
 584         if (feed)
 585                 p->feed = feed;
 586 }
 587
 588 static void clear_p2t(struct av7110_p2t *p)
 589 {
 590         memset(p->pes, 0, TS_SIZE);
 591 //      p->counter = 0;
 592         p->pos = 0;
 593         p->frags = 0;
 594 }
 595
 596
 597 static int find_pes_header(u8 const *buf, long int length, int *frags)
 598 {
 599         int c = 0;
 600         int found = 0;
 601
 602         *frags = 0;
 603
 604         while (c < length - 3 && !found) {
 605                 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 606                     buf[c + 2] == 0x01) {
 607                         switch ( buf[c + 3] ) {
 608                         case PROG_STREAM_MAP:
 609                         case PRIVATE_STREAM2:
 610                         case PROG_STREAM_DIR:
 611                         case ECM_STREAM     :
 612                         case EMM_STREAM     :
 613                         case PADDING_STREAM :
 614                         case DSM_CC_STREAM  :
 615                         case ISO13522_STREAM:
 616                         case PRIVATE_STREAM1:
 617                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 618                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 619                                 found = 1;
 620                                 break;
 621
 622                         default:
 623                                 c++;
 624                                 break;
 625                         }
 626                 } else
 627                         c++;
 628         }
 629         if (c == length - 3 && !found) {
 630                 if (buf[length - 1] == 0x00)
 631                         *frags = 1;
 632                 if (buf[length - 2] == 0x00 &&
 633                     buf[length - 1] == 0x00)
 634                         *frags = 2;
 635                 if (buf[length - 3] == 0x00 &&
 636                     buf[length - 2] == 0x00 &&
 637                     buf[length - 1] == 0x01)
 638                         *frags = 3;
 639                 return -1;
 640         }
 641
 642         return c;
 643 }
 644
 645 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 646 {
 647         int c, c2, l, add;
 648         int check, rest;
 649
 650         c = 0;
 651         c2 = 0;
 652         if (p->frags){
 653                 check = 0;
 654                 switch(p->frags) {
 655                 case 1:
 656                         if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 657                                 check = 1;
 658                                 c += 2;
 659                         }
 660                         break;
 661                 case 2:
 662                         if (buf[c] == 0x01) {
 663                                 check = 1;
 664                                 c++;
 665                         }
 666                         break;
 667                 case 3:
 668                         check = 1;
 669                 }
 670                 if (check) {
 671                         switch (buf[c]) {
 672                         case PROG_STREAM_MAP:
 673                         case PRIVATE_STREAM2:
 674                         case PROG_STREAM_DIR:
 675                         case ECM_STREAM     :
 676                         case EMM_STREAM     :
 677                         case PADDING_STREAM :
 678                         case DSM_CC_STREAM  :
 679                         case ISO13522_STREAM:
 680                         case PRIVATE_STREAM1:
 681                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 682                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 683                                 p->pes[0] = 0x00;
 684                                 p->pes[1] = 0x00;
 685                                 p->pes[2] = 0x01;
 686                                 p->pes[3] = buf[c];
 687                                 p->pos = 4;
 688                                 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 689                                 c += (TS_SIZE - 4) - p->pos;
 690                                 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 691                                 clear_p2t(p);
 692                                 break;
 693
 694                         default:
 695                                 c = 0;
 696                                 break;
 697                         }
 698                 }
 699                 p->frags = 0;
 700         }
 701
 702         if (p->pos) {
 703                 c2 = find_pes_header(buf + c, length - c, &p->frags);
 704                 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 705                         l = c2+c;
 706                 else
 707                         l = (TS_SIZE - 4) - p->pos;
 708                 memcpy(p->pes + p->pos, buf, l);
 709                 c += l;
 710                 p->pos += l;
 711                 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 712                 clear_p2t(p);
 713         }
 714
 715         add = 0;
 716         while (c < length) {
 717                 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 718                 if (c2 >= 0) {
 719                         c2 += c + add;
 720                         if (c2 > c){
 721                                 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 722                                 c = c2;
 723                                 clear_p2t(p);
 724                                 add = 0;
 725                         } else
 726                                 add = 1;
 727                 } else {
 728                         l = length - c;
 729                         rest = l % (TS_SIZE - 4);
 730                         l -= rest;
 731                         p_to_t(buf + c, l, pid, &p->counter, p->feed);
 732                         memcpy(p->pes, buf + c + l, rest);
 733                         p->pos = rest;
 734                         c = length;
 735                 }
 736         }
 737 }
 738
 739
 740 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 741 {
 742         int i;
 743         int c = 0;
 744         int fill;
 745         u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 746
 747         fill = (TS_SIZE - 4) - length;
 748         if (pes_start)
 749                 tshead[1] = 0x40;
 750         if (fill)
 751                 tshead[3] = 0x30;
 752         tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 753         tshead[2] |= (u8)(pid & 0x00FF);
 754         tshead[3] |= ((*counter)++ & 0x0F);
 755         memcpy(buf, tshead, 4);
 756         c += 4;
 757
 758         if (fill) {
 759                 buf[4] = fill - 1;
 760                 c++;
 761                 if (fill > 1) {
 762                         buf[5] = 0x00;
 763                         c++;
 764                 }
 765                 for (i = 6; i < fill + 4; i++) {
 766                         buf[i] = 0xFF;
 767                         c++;
 768                 }
 769         }
 770
 771         return c;
 772 }
 773
 774
 775 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 776                    struct dvb_demux_feed *feed)
 777 {
 778         int l, pes_start;
 779         u8 obuf[TS_SIZE];
 780         long c = 0;
 781
 782         pes_start = 0;
 783         if (length > 3 &&
 784              buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 785                 switch (buf[3]) {
 786                         case PROG_STREAM_MAP:
 787                         case PRIVATE_STREAM2:
 788                         case PROG_STREAM_DIR:
 789                         case ECM_STREAM     :
 790                         case EMM_STREAM     :
 791                         case PADDING_STREAM :
 792                         case DSM_CC_STREAM  :
 793                         case ISO13522_STREAM:
 794                         case PRIVATE_STREAM1:
 795                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 796                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 797                                 pes_start = 1;
 798                                 break;
 799
 800                         default:
 801                                 break;
 802                 }
 803
 804         while (c < length) {
 805                 memset(obuf, 0, TS_SIZE);
 806                 if (length - c >= (TS_SIZE - 4)){
 807                         l = write_ts_header2(pid, counter, pes_start,
 808                                              obuf, (TS_SIZE - 4));
 809                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 810                         c += TS_SIZE - l;
 811                 } else {
 812                         l = write_ts_header2(pid, counter, pes_start,
 813                                              obuf, length - c);
 814                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 815                         c = length;
 816                 }
 817                 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts);
 818                 pes_start = 0;
 819         }
 820 }
 821
 822
 823 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
 824 {
 825         struct ipack *ipack = &av7110->ipack[type];
 826
 827         if (buf[1] & TRANS_ERROR) {
 828                 av7110_ipack_reset(ipack);
 829                 return -1;
 830         }
 831
 832         if (!(buf[3] & PAYLOAD))
 833                 return -1;
 834
 835         if (buf[1] & PAY_START)
 836                 av7110_ipack_flush(ipack);
 837
 838         if (buf[3] & ADAPT_FIELD) {
 839                 len -= buf[4] + 1;
 840                 buf += buf[4] + 1;
 841                 if (!len)
 842                         return 0;
 843         }
 844
 845         av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
 846         return 0;
 847 }
 848
 849
 850 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 851 {
 852         struct dvb_demux *demux = feed->demux;
 853         struct av7110 *av7110 = (struct av7110 *) demux->priv;
 854
 855         dprintk(2, "av7110:%p, \n", av7110);
 856
 857         if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 858                 return 0;
 859
 860         switch (feed->pes_type) {
 861         case 0:
 862                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 863                         return -EINVAL;
 864                 break;
 865         case 1:
 866                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 867                         return -EINVAL;
 868                 break;
 869         default:
 870                 return -1;
 871         }
 872
 873         return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
 874 }
 875
 876
 877
 878 /******************************************************************************
 879  * Video MPEG decoder events
 880  ******************************************************************************/
 881 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 882 {
 883         struct dvb_video_events *events = &av7110->video_events;
 884         int wp;
 885
 886         spin_lock_bh(&events->lock);
 887
 888         wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 889         if (wp == events->eventr) {
 890                 events->overflow = 1;
 891                 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 892         }
 893
 894         //FIXME: timestamp?
 895         memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 896         events->eventw = wp;
 897
 898         spin_unlock_bh(&events->lock);
 899
 900         wake_up_interruptible(&events->wait_queue);
 901 }
 902
 903
 904 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 905 {
 906         struct dvb_video_events *events = &av7110->video_events;
 907
 908         if (events->overflow) {
 909                 events->overflow = 0;
 910                 return -EOVERFLOW;
 911         }
 912         if (events->eventw == events->eventr) {
 913                 int ret;
 914
 915                 if (flags & O_NONBLOCK)
 916                         return -EWOULDBLOCK;
 917
 918                 ret = wait_event_interruptible(events->wait_queue,
 919                                                events->eventw != events->eventr);
 920                 if (ret < 0)
 921                         return ret;
 922         }
 923
 924         spin_lock_bh(&events->lock);
 925
 926         memcpy(event, &events->events[events->eventr],
 927                sizeof(struct video_event));
 928         events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 929
 930         spin_unlock_bh(&events->lock);
 931
 932         return 0;
 933 }
 934
 935
 936 /******************************************************************************
 937  * DVB device file operations
 938  ******************************************************************************/
 939
 940 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
 941 {
 942         struct dvb_device *dvbdev = file->private_data;
 943         struct av7110 *av7110 = dvbdev->priv;
 944         unsigned int mask = 0;
 945
 946         dprintk(2, "av7110:%p, \n", av7110);
 947
 948         if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 949                 poll_wait(file, &av7110->avout.queue, wait);
 950
 951         poll_wait(file, &av7110->video_events.wait_queue, wait);
 952
 953         if (av7110->video_events.eventw != av7110->video_events.eventr)
 954                 mask = POLLPRI;
 955
 956         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 957                 if (av7110->playing) {
 958                         if (FREE_COND)
 959                                 mask |= (POLLOUT | POLLWRNORM);
 960                 } else {
 961                         /* if not playing: may play if asked for */
 962                         mask |= (POLLOUT | POLLWRNORM);
 963                 }
 964         }
 965
 966         return mask;
 967 }
 968
 969 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 970                                size_t count, loff_t *ppos)
 971 {
 972         struct dvb_device *dvbdev = file->private_data;
 973         struct av7110 *av7110 = dvbdev->priv;
 974         unsigned char c;
 975
 976         dprintk(2, "av7110:%p, \n", av7110);
 977
 978         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 979                 return -EPERM;
 980
 981         if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 982                 return -EPERM;
 983
 984         if (get_user(c, buf))
 985                 return -EFAULT;
 986         if (c == 0x47 && count % TS_SIZE == 0)
 987                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 988         else
 989                 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 990 }
 991
 992 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
 993 {
 994         struct dvb_device *dvbdev = file->private_data;
 995         struct av7110 *av7110 = dvbdev->priv;
 996         unsigned int mask = 0;
 997
 998         dprintk(2, "av7110:%p, \n", av7110);
 999
1000         poll_wait(file, &av7110->aout.queue, wait);
1001
1002         if (av7110->playing) {
1003                 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1004                         mask |= (POLLOUT | POLLWRNORM);
1005         } else /* if not playing: may play if asked for */
1006                 mask = (POLLOUT | POLLWRNORM);
1007
1008         return mask;
1009 }
1010
1011 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1012                                size_t count, loff_t *ppos)
1013 {
1014         struct dvb_device *dvbdev = file->private_data;
1015         struct av7110 *av7110 = dvbdev->priv;
1016         unsigned char c;
1017
1018         dprintk(2, "av7110:%p, \n", av7110);
1019
1020         if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1021                 printk(KERN_ERR "not audio source memory\n");
1022                 return -EPERM;
1023         }
1024
1025         if (get_user(c, buf))
1026                 return -EFAULT;
1027         if (c == 0x47 && count % TS_SIZE == 0)
1028                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1029         else
1030                 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1031 }
1032
1033 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1034
1035 #define MIN_IFRAME 400000
1036
1037 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1038 {
1039         unsigned i, n;
1040         int progressive = 0;
1041         int match = 0;
1042
1043         dprintk(2, "av7110:%p, \n", av7110);
1044
1045         if (len == 0)
1046                 return 0;
1047
1048         if (!(av7110->playing & RP_VIDEO)) {
1049                 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1050                         return -EBUSY;
1051         }
1052
1053         /* search in buf for instances of 00 00 01 b5 1? */
1054         for (i = 0; i < len; i++) {
1055                 unsigned char c;
1056                 if (get_user(c, buf + i))
1057                         return -EFAULT;
1058                 if (match == 5) {
1059                         progressive = c & 0x08;
1060                         match = 0;
1061                 }
1062                 if (c == 0x00) {
1063                         match = (match == 1 || match == 2) ? 2 : 1;
1064                         continue;
1065                 }
1066                 switch (match++) {
1067                 case 2: if (c == 0x01)
1068                                 continue;
1069                         break;
1070                 case 3: if (c == 0xb5)
1071                                 continue;
1072                         break;
1073                 case 4: if ((c & 0xf0) == 0x10)
1074                                 continue;
1075                         break;
1076                 }
1077                 match = 0;
1078         }
1079
1080         /* setting n always > 1, fixes problems when playing stillframes
1081            consisting of I- and P-Frames */
1082         n = MIN_IFRAME / len + 1;
1083
1084         /* FIXME: nonblock? */
1085         dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1086
1087         for (i = 0; i < n; i++)
1088                 dvb_play(av7110, buf, len, 0, 1);
1089
1090         av7110_ipack_flush(&av7110->ipack[1]);
1091
1092         if (progressive)
1093                 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1094         else
1095                 return 0;
1096 }
1097
1098
1099 static int dvb_video_ioctl(struct file *file,
1100                            unsigned int cmd, void *parg)
1101 {
1102         struct dvb_device *dvbdev = file->private_data;
1103         struct av7110 *av7110 = dvbdev->priv;
1104         unsigned long arg = (unsigned long) parg;
1105         int ret = 0;
1106
1107         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1108
1109         if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1110                 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1111                      cmd != VIDEO_GET_SIZE ) {
1112                         return -EPERM;
1113                 }
1114         }
1115
1116         if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1117                 return -ERESTARTSYS;
1118
1119         switch (cmd) {
1120         case VIDEO_STOP:
1121                 av7110->videostate.play_state = VIDEO_STOPPED;
1122                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1123                         ret = av7110_av_stop(av7110, RP_VIDEO);
1124                 else
1125                         ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1126                                av7110->videostate.video_blank ? 0 : 1);
1127                 if (!ret)
1128                         av7110->trickmode = TRICK_NONE;
1129                 break;
1130
1131         case VIDEO_PLAY:
1132                 av7110->trickmode = TRICK_NONE;
1133                 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1134                         av7110->videostate.play_state = VIDEO_PLAYING;
1135                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1136                         if (ret)
1137                                 break;
1138                 }
1139                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1140                         if (av7110->playing == RP_AV) {
1141                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1142                                 if (ret)
1143                                         break;
1144                                 av7110->playing &= ~RP_VIDEO;
1145                         }
1146                         ret = av7110_av_start_play(av7110, RP_VIDEO);
1147                 }
1148                 if (!ret)
1149                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1150                 if (!ret)
1151                         av7110->videostate.play_state = VIDEO_PLAYING;
1152                 break;
1153
1154         case VIDEO_FREEZE:
1155                 av7110->videostate.play_state = VIDEO_FREEZED;
1156                 if (av7110->playing & RP_VIDEO)
1157                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1158                 else
1159                         ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1160                 if (!ret)
1161                         av7110->trickmode = TRICK_FREEZE;
1162                 break;
1163
1164         case VIDEO_CONTINUE:
1165                 if (av7110->playing & RP_VIDEO)
1166                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1167                 if (!ret)
1168                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1169                 if (!ret) {
1170                         av7110->videostate.play_state = VIDEO_PLAYING;
1171                         av7110->trickmode = TRICK_NONE;
1172                 }
1173                 break;
1174
1175         case VIDEO_SELECT_SOURCE:
1176                 av7110->videostate.stream_source = (video_stream_source_t) arg;
1177                 break;
1178
1179         case VIDEO_SET_BLANK:
1180                 av7110->videostate.video_blank = (int) arg;
1181                 break;
1182
1183         case VIDEO_GET_STATUS:
1184                 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1185                 break;
1186
1187         case VIDEO_GET_EVENT:
1188                 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1189                 break;
1190
1191         case VIDEO_GET_SIZE:
1192                 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1193                 break;
1194
1195         case VIDEO_SET_DISPLAY_FORMAT:
1196         {
1197                 video_displayformat_t format = (video_displayformat_t) arg;
1198                 switch (format) {
1199                 case VIDEO_PAN_SCAN:
1200                         av7110->display_panscan = VID_PAN_SCAN_PREF;
1201                         break;
1202                 case VIDEO_LETTER_BOX:
1203                         av7110->display_panscan = VID_VC_AND_PS_PREF;
1204                         break;
1205                 case VIDEO_CENTER_CUT_OUT:
1206                         av7110->display_panscan = VID_CENTRE_CUT_PREF;
1207                         break;
1208                 default:
1209                         ret = -EINVAL;
1210                 }
1211                 if (ret < 0)
1212                         break;
1213                 av7110->videostate.display_format = format;
1214                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1215                                     1, av7110->display_panscan);
1216                 break;
1217         }
1218
1219         case VIDEO_SET_FORMAT:
1220                 if (arg > 1) {
1221                         ret = -EINVAL;
1222                         break;
1223                 }
1224                 av7110->display_ar = arg;
1225                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1226                                     1, (u16) arg);
1227                 break;
1228
1229         case VIDEO_STILLPICTURE:
1230         {
1231                 struct video_still_picture *pic =
1232                         (struct video_still_picture *) parg;
1233                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1234                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1235                 ret = play_iframe(av7110, pic->iFrame, pic->size,
1236                                   file->f_flags & O_NONBLOCK);
1237                 break;
1238         }
1239
1240         case VIDEO_FAST_FORWARD:
1241                 //note: arg is ignored by firmware
1242                 if (av7110->playing & RP_VIDEO)
1243                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1244                                             __Scan_I, 2, AV_PES, 0);
1245                 else
1246                         ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1247                 if (!ret) {
1248                         av7110->trickmode = TRICK_FAST;
1249                         av7110->videostate.play_state = VIDEO_PLAYING;
1250                 }
1251                 break;
1252
1253         case VIDEO_SLOWMOTION:
1254                 if (av7110->playing&RP_VIDEO) {
1255                         if (av7110->trickmode != TRICK_SLOW)
1256                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1257                         if (!ret)
1258                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1259                 } else {
1260                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1261                         if (!ret)
1262                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1263                         if (!ret)
1264                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1265                 }
1266                 if (!ret) {
1267                         av7110->trickmode = TRICK_SLOW;
1268                         av7110->videostate.play_state = VIDEO_PLAYING;
1269                 }
1270                 break;
1271
1272         case VIDEO_GET_CAPABILITIES:
1273                 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1274                         VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1275                 break;
1276
1277         case VIDEO_CLEAR_BUFFER:
1278                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1279                 av7110_ipack_reset(&av7110->ipack[1]);
1280                 if (av7110->playing == RP_AV) {
1281                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1282                                             __Play, 2, AV_PES, 0);
1283                         if (ret)
1284                                 break;
1285                         if (av7110->trickmode == TRICK_FAST)
1286                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1287                                                     __Scan_I, 2, AV_PES, 0);
1288                         if (av7110->trickmode == TRICK_SLOW) {
1289                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1290                                                     __Slow, 2, 0, 0);
1291                                 if (!ret)
1292                                         ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1293                         }
1294                         if (av7110->trickmode == TRICK_FREEZE)
1295                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1296                 }
1297                 break;
1298
1299         case VIDEO_SET_STREAMTYPE:
1300                 break;
1301
1302         default:
1303                 ret = -ENOIOCTLCMD;
1304                 break;
1305         }
1306
1307         mutex_unlock(&av7110->ioctl_mutex);
1308         return ret;
1309 }
1310
1311 static int dvb_audio_ioctl(struct file *file,
1312                            unsigned int cmd, void *parg)
1313 {
1314         struct dvb_device *dvbdev = file->private_data;
1315         struct av7110 *av7110 = dvbdev->priv;
1316         unsigned long arg = (unsigned long) parg;
1317         int ret = 0;
1318
1319         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1320
1321         if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1322             (cmd != AUDIO_GET_STATUS))
1323                 return -EPERM;
1324
1325         if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1326                 return -ERESTARTSYS;
1327
1328         switch (cmd) {
1329         case AUDIO_STOP:
1330                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1331                         ret = av7110_av_stop(av7110, RP_AUDIO);
1332                 else
1333                         ret = audcom(av7110, AUDIO_CMD_MUTE);
1334                 if (!ret)
1335                         av7110->audiostate.play_state = AUDIO_STOPPED;
1336                 break;
1337
1338         case AUDIO_PLAY:
1339                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1340                         ret = av7110_av_start_play(av7110, RP_AUDIO);
1341                 if (!ret)
1342                         ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1343                 if (!ret)
1344                         av7110->audiostate.play_state = AUDIO_PLAYING;
1345                 break;
1346
1347         case AUDIO_PAUSE:
1348                 ret = audcom(av7110, AUDIO_CMD_MUTE);
1349                 if (!ret)
1350                         av7110->audiostate.play_state = AUDIO_PAUSED;
1351                 break;
1352
1353         case AUDIO_CONTINUE:
1354                 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1355                         av7110->audiostate.play_state = AUDIO_PLAYING;
1356                         ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1357                 }
1358                 break;
1359
1360         case AUDIO_SELECT_SOURCE:
1361                 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1362                 break;
1363
1364         case AUDIO_SET_MUTE:
1365         {
1366                 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1367                 if (!ret)
1368                         av7110->audiostate.mute_state = (int) arg;
1369                 break;
1370         }
1371
1372         case AUDIO_SET_AV_SYNC:
1373                 av7110->audiostate.AV_sync_state = (int) arg;
1374                 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1375                 break;
1376
1377         case AUDIO_SET_BYPASS_MODE:
1378                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1379                         ret = -EINVAL;
1380                 av7110->audiostate.bypass_mode = (int)arg;
1381                 break;
1382
1383         case AUDIO_CHANNEL_SELECT:
1384                 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1385                 switch(av7110->audiostate.channel_select) {
1386                 case AUDIO_STEREO:
1387                         ret = audcom(av7110, AUDIO_CMD_STEREO);
1388                         if (!ret) {
1389                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1390                                         i2c_writereg(av7110, 0x20, 0x02, 0x49);
1391                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1392                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1393                         }
1394                         break;
1395                 case AUDIO_MONO_LEFT:
1396                         ret = audcom(av7110, AUDIO_CMD_MONO_L);
1397                         if (!ret) {
1398                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1399                                         i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1400                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1401                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1402                         }
1403                         break;
1404                 case AUDIO_MONO_RIGHT:
1405                         ret = audcom(av7110, AUDIO_CMD_MONO_R);
1406                         if (!ret) {
1407                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1408                                         i2c_writereg(av7110, 0x20, 0x02, 0x45);
1409                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1410                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1411                         }
1412                         break;
1413                 default:
1414                         ret = -EINVAL;
1415                         break;
1416                 }
1417                 break;
1418
1419         case AUDIO_GET_STATUS:
1420                 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1421                 break;
1422
1423         case AUDIO_GET_CAPABILITIES:
1424                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1425                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1426                 else
1427                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1428                                                 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1429                 break;
1430
1431         case AUDIO_CLEAR_BUFFER:
1432                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1433                 av7110_ipack_reset(&av7110->ipack[0]);
1434                 if (av7110->playing == RP_AV)
1435                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1436                                             __Play, 2, AV_PES, 0);
1437                 break;
1438
1439         case AUDIO_SET_ID:
1440                 break;
1441
1442         case AUDIO_SET_MIXER:
1443         {
1444                 struct audio_mixer *amix = (struct audio_mixer *)parg;
1445                 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1446                 break;
1447         }
1448
1449         case AUDIO_SET_STREAMTYPE:
1450                 break;
1451
1452         default:
1453                 ret = -ENOIOCTLCMD;
1454         }
1455
1456         mutex_unlock(&av7110->ioctl_mutex);
1457         return ret;
1458 }
1459
1460
1461 static int dvb_video_open(struct inode *inode, struct file *file)
1462 {
1463         struct dvb_device *dvbdev = file->private_data;
1464         struct av7110 *av7110 = dvbdev->priv;
1465         int err;
1466
1467         dprintk(2, "av7110:%p, \n", av7110);
1468
1469         if ((err = dvb_generic_open(inode, file)) < 0)
1470                 return err;
1471
1472         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1473                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1474                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1475                 av7110->video_blank = 1;
1476                 av7110->audiostate.AV_sync_state = 1;
1477                 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1478
1479                 /*  empty event queue */
1480                 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1481         }
1482
1483         return 0;
1484 }
1485
1486 static int dvb_video_release(struct inode *inode, struct file *file)
1487 {
1488         struct dvb_device *dvbdev = file->private_data;
1489         struct av7110 *av7110 = dvbdev->priv;
1490
1491         dprintk(2, "av7110:%p, \n", av7110);
1492
1493         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1494                 av7110_av_stop(av7110, RP_VIDEO);
1495         }
1496
1497         return dvb_generic_release(inode, file);
1498 }
1499
1500 static int dvb_audio_open(struct inode *inode, struct file *file)
1501 {
1502         struct dvb_device *dvbdev = file->private_data;
1503         struct av7110 *av7110 = dvbdev->priv;
1504         int err = dvb_generic_open(inode, file);
1505
1506         dprintk(2, "av7110:%p, \n", av7110);
1507
1508         if (err < 0)
1509                 return err;
1510         dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1511         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1512         return 0;
1513 }
1514
1515 static int dvb_audio_release(struct inode *inode, struct file *file)
1516 {
1517         struct dvb_device *dvbdev = file->private_data;
1518         struct av7110 *av7110 = dvbdev->priv;
1519
1520         dprintk(2, "av7110:%p, \n", av7110);
1521
1522         av7110_av_stop(av7110, RP_AUDIO);
1523         return dvb_generic_release(inode, file);
1524 }
1525
1526
1527
1528 /******************************************************************************
1529  * driver registration
1530  ******************************************************************************/
1531
1532 static const struct file_operations dvb_video_fops = {
1533         .owner          = THIS_MODULE,
1534         .write          = dvb_video_write,
1535         .unlocked_ioctl = dvb_generic_ioctl,
1536         .open           = dvb_video_open,
1537         .release        = dvb_video_release,
1538         .poll           = dvb_video_poll,
1539         .llseek         = noop_llseek,
1540 };
1541
1542 static struct dvb_device dvbdev_video = {
1543         .priv           = NULL,
1544         .users          = 6,
1545         .readers        = 5,    /* arbitrary */
1546         .writers        = 1,
1547         .fops           = &dvb_video_fops,
1548         .kernel_ioctl   = dvb_video_ioctl,
1549 };
1550
1551 static const struct file_operations dvb_audio_fops = {
1552         .owner          = THIS_MODULE,
1553         .write          = dvb_audio_write,
1554         .unlocked_ioctl = dvb_generic_ioctl,
1555         .open           = dvb_audio_open,
1556         .release        = dvb_audio_release,
1557         .poll           = dvb_audio_poll,
1558         .llseek         = noop_llseek,
1559 };
1560
1561 static struct dvb_device dvbdev_audio = {
1562         .priv           = NULL,
1563         .users          = 1,
1564         .writers        = 1,
1565         .fops           = &dvb_audio_fops,
1566         .kernel_ioctl   = dvb_audio_ioctl,
1567 };
1568
1569
1570 int av7110_av_register(struct av7110 *av7110)
1571 {
1572         av7110->audiostate.AV_sync_state = 0;
1573         av7110->audiostate.mute_state = 0;
1574         av7110->audiostate.play_state = AUDIO_STOPPED;
1575         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1576         av7110->audiostate.channel_select = AUDIO_STEREO;
1577         av7110->audiostate.bypass_mode = 0;
1578
1579         av7110->videostate.video_blank = 0;
1580         av7110->videostate.play_state = VIDEO_STOPPED;
1581         av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1582         av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1583         av7110->videostate.display_format = VIDEO_LETTER_BOX;
1584         av7110->display_ar = VIDEO_FORMAT_4_3;
1585         av7110->display_panscan = VID_VC_AND_PS_PREF;
1586
1587         init_waitqueue_head(&av7110->video_events.wait_queue);
1588         spin_lock_init(&av7110->video_events.lock);
1589         av7110->video_events.eventw = av7110->video_events.eventr = 0;
1590         av7110->video_events.overflow = 0;
1591         memset(&av7110->video_size, 0, sizeof (video_size_t));
1592
1593         dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1594                             &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1595
1596         dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1597                             &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1598
1599         return 0;
1600 }
1601
1602 void av7110_av_unregister(struct av7110 *av7110)
1603 {
1604         dvb_unregister_device(av7110->audio_dev);
1605         dvb_unregister_device(av7110->video_dev);
1606 }
1607
1608 int av7110_av_init(struct av7110 *av7110)
1609 {
1610         void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1611         int i, ret;
1612
1613         for (i = 0; i < 2; i++) {
1614                 struct ipack *ipack = av7110->ipack + i;
1615
1616                 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1617                 if (ret < 0) {
1618                         if (i)
1619                                 av7110_ipack_free(--ipack);
1620                         goto out;
1621                 }
1622                 ipack->data = av7110;
1623         }
1624
1625         dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1626         dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1627
1628         av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1629         av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1630 out:
1631         return ret;
1632 }
1633
1634 void av7110_av_exit(struct av7110 *av7110)
1635 {
1636         av7110_ipack_free(&av7110->ipack[0]);
1637         av7110_ipack_free(&av7110->ipack[1]);
1638 }