git.oblomov.eu Git - linux-2.6/blob - drivers/media/dvb/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  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  26  *
  27  *
  28  * the project's page is at http://www.linuxtv.org/dvb/
  29  */
  30
  31 #include <linux/types.h>
  32 #include <linux/kernel.h>
  33 #include <linux/string.h>
  34 #include <linux/delay.h>
  35 #include <linux/fs.h>
  36
  37 #include "av7110.h"
  38 #include "av7110_hw.h"
  39 #include "av7110_av.h"
  40 #include "av7110_ipack.h"
  41
  42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
  43 #define PROG_STREAM_MAP  0xBC
  44 #define PRIVATE_STREAM1  0xBD
  45 #define PADDING_STREAM   0xBE
  46 #define PRIVATE_STREAM2  0xBF
  47 #define AUDIO_STREAM_S   0xC0
  48 #define AUDIO_STREAM_E   0xDF
  49 #define VIDEO_STREAM_S   0xE0
  50 #define VIDEO_STREAM_E   0xEF
  51 #define ECM_STREAM       0xF0
  52 #define EMM_STREAM       0xF1
  53 #define DSM_CC_STREAM    0xF2
  54 #define ISO13522_STREAM  0xF3
  55 #define PROG_STREAM_DIR  0xFF
  56
  57 #define PTS_DTS_FLAGS    0xC0
  58
  59 //pts_dts flags
  60 #define PTS_ONLY         0x80
  61 #define PTS_DTS          0xC0
  62 #define TS_SIZE          188
  63 #define TRANS_ERROR      0x80
  64 #define PAY_START        0x40
  65 #define TRANS_PRIO       0x20
  66 #define PID_MASK_HI      0x1F
  67 //flags
  68 #define TRANS_SCRMBL1    0x80
  69 #define TRANS_SCRMBL2    0x40
  70 #define ADAPT_FIELD      0x20
  71 #define PAYLOAD          0x10
  72 #define COUNT_MASK       0x0F
  73
  74 // adaptation flags
  75 #define DISCON_IND       0x80
  76 #define RAND_ACC_IND     0x40
  77 #define ES_PRI_IND       0x20
  78 #define PCR_FLAG         0x10
  79 #define OPCR_FLAG        0x08
  80 #define SPLICE_FLAG      0x04
  81 #define TRANS_PRIV       0x02
  82 #define ADAP_EXT_FLAG    0x01
  83
  84 // adaptation extension flags
  85 #define LTW_FLAG         0x80
  86 #define PIECE_RATE       0x40
  87 #define SEAM_SPLICE      0x20
  88
  89
  90 static void p_to_t(u8 const *buf, long int length, u16 pid,
  91                    u8 *counter, struct dvb_demux_feed *feed);
  92 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
  93
  94
  95 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
  96 {
  97         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
  98
  99         if (!(dvbdmxfeed->ts_type & TS_PACKET))
 100                 return 0;
 101         if (buf[3] == 0xe0)      // video PES do not have a length in TS
 102                 buf[4] = buf[5] = 0;
 103         if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
 104                 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
 105                                          &dvbdmxfeed->feed.ts, DMX_OK);
 106         else
 107                 return dvb_filter_pes2ts(p2t, buf, len, 1);
 108 }
 109
 110 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
 111 {
 112         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
 113
 114         dvbdmxfeed->cb.ts(data, 188, NULL, 0,
 115                           &dvbdmxfeed->feed.ts, DMX_OK);
 116         return 0;
 117 }
 118
 119 int av7110_av_start_record(struct av7110 *av7110, int av,
 120                            struct dvb_demux_feed *dvbdmxfeed)
 121 {
 122         int ret = 0;
 123         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 124
 125         dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
 126
 127         if (av7110->playing || (av7110->rec_mode & av))
 128                 return -EBUSY;
 129         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 130         dvbdmx->recording = 1;
 131         av7110->rec_mode |= av;
 132
 133         switch (av7110->rec_mode) {
 134         case RP_AUDIO:
 135                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 136                                        dvbdmx->pesfilter[0]->pid,
 137                                        dvb_filter_pes2ts_cb,
 138                                        (void *) dvbdmx->pesfilter[0]);
 139                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 140                 break;
 141
 142         case RP_VIDEO:
 143                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 144                                        dvbdmx->pesfilter[1]->pid,
 145                                        dvb_filter_pes2ts_cb,
 146                                        (void *) dvbdmx->pesfilter[1]);
 147                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 148                 break;
 149
 150         case RP_AV:
 151                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 152                                        dvbdmx->pesfilter[0]->pid,
 153                                        dvb_filter_pes2ts_cb,
 154                                        (void *) dvbdmx->pesfilter[0]);
 155                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 156                                        dvbdmx->pesfilter[1]->pid,
 157                                        dvb_filter_pes2ts_cb,
 158                                        (void *) dvbdmx->pesfilter[1]);
 159                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
 160                 break;
 161         }
 162         return ret;
 163 }
 164
 165 int av7110_av_start_play(struct av7110 *av7110, int av)
 166 {
 167         int ret = 0;
 168         dprintk(2, "av7110:%p, \n", av7110);
 169
 170         if (av7110->rec_mode)
 171                 return -EBUSY;
 172         if (av7110->playing & av)
 173                 return -EBUSY;
 174
 175         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 176
 177         if (av7110->playing == RP_NONE) {
 178                 av7110_ipack_reset(&av7110->ipack[0]);
 179                 av7110_ipack_reset(&av7110->ipack[1]);
 180         }
 181
 182         av7110->playing |= av;
 183         switch (av7110->playing) {
 184         case RP_AUDIO:
 185                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 186                 break;
 187         case RP_VIDEO:
 188                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 189                 av7110->sinfo = 0;
 190                 break;
 191         case RP_AV:
 192                 av7110->sinfo = 0;
 193                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
 194                 break;
 195         }
 196         return ret;
 197 }
 198
 199 int av7110_av_stop(struct av7110 *av7110, int av)
 200 {
 201         int ret = 0;
 202         dprintk(2, "av7110:%p, \n", av7110);
 203
 204         if (!(av7110->playing & av) && !(av7110->rec_mode & av))
 205                 return 0;
 206         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 207         if (av7110->playing) {
 208                 av7110->playing &= ~av;
 209                 switch (av7110->playing) {
 210                 case RP_AUDIO:
 211                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 212                         break;
 213                 case RP_VIDEO:
 214                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 215                         break;
 216                 case RP_NONE:
 217                         ret = av7110_set_vidmode(av7110, av7110->vidmode);
 218                         break;
 219                 }
 220         } else {
 221                 av7110->rec_mode &= ~av;
 222                 switch (av7110->rec_mode) {
 223                 case RP_AUDIO:
 224                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 225                         break;
 226                 case RP_VIDEO:
 227                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 228                         break;
 229                 case RP_NONE:
 230                         break;
 231                 }
 232         }
 233         return ret;
 234 }
 235
 236
 237 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
 238 {
 239         int len;
 240         u32 sync;
 241         u16 blen;
 242
 243         if (!dlen) {
 244                 wake_up(&buf->queue);
 245                 return -1;
 246         }
 247         while (1) {
 248                 if ((len = dvb_ringbuffer_avail(buf)) < 6)
 249                         return -1;
 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, int volleft, int volright)
 281 {
 282         int err, vol, val, balance = 0;
 283
 284         dprintk(2, "av7110:%p, \n", av7110);
 285
 286         av7110->mixer.volume_left = volleft;
 287         av7110->mixer.volume_right = volright;
 288
 289         switch (av7110->adac_type) {
 290         case DVB_ADAC_TI:
 291                 volleft = (volleft * 256) / 1036;
 292                 volright = (volright * 256) / 1036;
 293                 if (volleft > 0x3f)
 294                         volleft = 0x3f;
 295                 if (volright > 0x3f)
 296                         volright = 0x3f;
 297                 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 298                         return err;
 299                 return SendDAC(av7110, 4, volright);
 300
 301         case DVB_ADAC_CRYSTAL:
 302                 volleft = 127 - volleft / 2;
 303                 volright = 127 - volright / 2;
 304                 i2c_writereg(av7110, 0x20, 0x03, volleft);
 305                 i2c_writereg(av7110, 0x20, 0x04, volright);
 306                 return 0;
 307
 308         case DVB_ADAC_MSP34x0:
 309                 vol  = (volleft > volright) ? volleft : volright;
 310                 val     = (vol * 0x73 / 255) << 8;
 311                 if (vol > 0)
 312                        balance = ((volright - volleft) * 127) / vol;
 313                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 314                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 315                 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 316                 return 0;
 317
 318         case DVB_ADAC_MSP34x5:
 319                 vol = (volleft > volright) ? volleft : volright;
 320                 val = (vol * 0x73 / 255) << 8;
 321                 if (vol > 0)
 322                         balance = ((volright - volleft) * 127) / vol;
 323                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 324                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 325                 return 0;
 326         }
 327
 328         return 0;
 329 }
 330
 331 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 332 {
 333         int ret;
 334         dprintk(2, "av7110:%p, \n", av7110);
 335
 336         ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 337
 338         if (!ret && !av7110->playing) {
 339                 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 340                            av7110->pids[DMX_PES_AUDIO],
 341                            av7110->pids[DMX_PES_TELETEXT],
 342                            0, av7110->pids[DMX_PES_PCR]);
 343                 if (!ret)
 344                         ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 345         }
 346         return ret;
 347 }
 348
 349
 350 static enum av7110_video_mode sw2mode[16] = {
 351         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 352         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 353         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 354         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 355         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 356         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 357         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 358         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 359 };
 360
 361 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 362 {
 363         int i;
 364         int hsize, vsize;
 365         int sw;
 366         u8 *p;
 367         int ret = 0;
 368
 369         dprintk(2, "av7110:%p, \n", av7110);
 370
 371         if (av7110->sinfo)
 372                 return 0;
 373         for (i = 7; i < count - 10; i++) {
 374                 p = buf + i;
 375                 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 376                         continue;
 377                 p += 4;
 378                 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 379                 vsize = ((p[1] &0x0F) << 8) | (p[2]);
 380                 sw = (p[3] & 0x0F);
 381                 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 382                 if (!ret) {
 383                         dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 384                         av7110->sinfo = 1;
 385                 }
 386                 break;
 387         }
 388         return ret;
 389 }
 390
 391
 392 /****************************************************************************
 393  * I/O buffer management and control
 394  ****************************************************************************/
 395
 396 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 397                                          const u8 *buf, unsigned long count)
 398 {
 399         unsigned long todo = count;
 400         int free;
 401
 402         while (todo > 0) {
 403                 if (dvb_ringbuffer_free(rbuf) < 2048) {
 404                         if (wait_event_interruptible(rbuf->queue,
 405                                                      (dvb_ringbuffer_free(rbuf) >= 2048)))
 406                                 return count - todo;
 407                 }
 408                 free = dvb_ringbuffer_free(rbuf);
 409                 if (free > todo)
 410                         free = todo;
 411                 dvb_ringbuffer_write(rbuf, buf, free);
 412                 todo -= free;
 413                 buf += free;
 414         }
 415
 416         return count - todo;
 417 }
 418
 419 static void play_video_cb(u8 *buf, int count, void *priv)
 420 {
 421         struct av7110 *av7110 = (struct av7110 *) priv;
 422         dprintk(2, "av7110:%p, \n", av7110);
 423
 424         if ((buf[3] & 0xe0) == 0xe0) {
 425                 get_video_format(av7110, buf, count);
 426                 aux_ring_buffer_write(&av7110->avout, buf, count);
 427         } else
 428                 aux_ring_buffer_write(&av7110->aout, buf, count);
 429 }
 430
 431 static void play_audio_cb(u8 *buf, int count, void *priv)
 432 {
 433         struct av7110 *av7110 = (struct av7110 *) priv;
 434         dprintk(2, "av7110:%p, \n", av7110);
 435
 436         aux_ring_buffer_write(&av7110->aout, buf, count);
 437 }
 438
 439
 440 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
 441
 442 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
 443                        unsigned long count, int nonblock, int type)
 444 {
 445         struct dvb_ringbuffer *rb;
 446         u8 *kb;
 447         unsigned long todo = count;
 448
 449         dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
 450
 451         rb = (type) ? &av7110->avout : &av7110->aout;
 452         kb = av7110->kbuf[type];
 453
 454         if (!kb)
 455                 return -ENOBUFS;
 456
 457         if (nonblock && !FREE_COND_TS)
 458                 return -EWOULDBLOCK;
 459
 460         while (todo >= TS_SIZE) {
 461                 if (!FREE_COND_TS) {
 462                         if (nonblock)
 463                                 return count - todo;
 464                         if (wait_event_interruptible(rb->queue, FREE_COND_TS))
 465                                 return count - todo;
 466                 }
 467                 if (copy_from_user(kb, buf, TS_SIZE))
 468                         return -EFAULT;
 469                 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
 470                 todo -= TS_SIZE;
 471                 buf += TS_SIZE;
 472         }
 473
 474         return count - todo;
 475 }
 476
 477
 478 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 479                    dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 480
 481 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 482                         unsigned long count, int nonblock, int type)
 483 {
 484         unsigned long todo = count, n;
 485         dprintk(2, "av7110:%p, \n", av7110);
 486
 487         if (!av7110->kbuf[type])
 488                 return -ENOBUFS;
 489
 490         if (nonblock && !FREE_COND)
 491                 return -EWOULDBLOCK;
 492
 493         while (todo > 0) {
 494                 if (!FREE_COND) {
 495                         if (nonblock)
 496                                 return count - todo;
 497                         if (wait_event_interruptible(av7110->avout.queue,
 498                                                      FREE_COND))
 499                                 return count - todo;
 500                 }
 501                 n = todo;
 502                 if (n > IPACKS * 2)
 503                         n = IPACKS * 2;
 504                 if (copy_from_user(av7110->kbuf[type], buf, n))
 505                         return -EFAULT;
 506                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 507                                             &av7110->ipack[type]);
 508                 todo -= n;
 509                 buf += n;
 510         }
 511         return count - todo;
 512 }
 513
 514 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 515                         unsigned long count, int nonblock, int type)
 516 {
 517         unsigned long todo = count, n;
 518         dprintk(2, "av7110:%p, \n", av7110);
 519
 520         if (!av7110->kbuf[type])
 521                 return -ENOBUFS;
 522
 523         if (nonblock && !FREE_COND)
 524                 return -EWOULDBLOCK;
 525
 526         while (todo > 0) {
 527                 if (!FREE_COND) {
 528                         if (nonblock)
 529                                 return count - todo;
 530                         if (wait_event_interruptible(av7110->avout.queue,
 531                                                      FREE_COND))
 532                                 return count - todo;
 533                 }
 534                 n = todo;
 535                 if (n > IPACKS * 2)
 536                         n = IPACKS * 2;
 537                 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 538                 todo -= n;
 539                 buf += n;
 540         }
 541         return count - todo;
 542 }
 543
 544 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 545                          unsigned long count, int nonblock, int type)
 546 {
 547         unsigned long todo = count, n;
 548         dprintk(2, "av7110:%p, \n", av7110);
 549
 550         if (!av7110->kbuf[type])
 551                 return -ENOBUFS;
 552         if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 553                 return -EWOULDBLOCK;
 554
 555         while (todo > 0) {
 556                 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 557                         if (nonblock)
 558                                 return count - todo;
 559                         if (wait_event_interruptible(av7110->aout.queue,
 560                                         (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 561                                 return count-todo;
 562                 }
 563                 n = todo;
 564                 if (n > IPACKS * 2)
 565                         n = IPACKS * 2;
 566                 if (copy_from_user(av7110->kbuf[type], buf, n))
 567                         return -EFAULT;
 568                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 569                                             &av7110->ipack[type]);
 570                 todo -= n;
 571                 buf += n;
 572         }
 573         return count - todo;
 574 }
 575
 576 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 577 {
 578         memset(p->pes, 0, TS_SIZE);
 579         p->counter = 0;
 580         p->pos = 0;
 581         p->frags = 0;
 582         if (feed)
 583                 p->feed = feed;
 584 }
 585
 586 static void clear_p2t(struct av7110_p2t *p)
 587 {
 588         memset(p->pes, 0, TS_SIZE);
 589 //      p->counter = 0;
 590         p->pos = 0;
 591         p->frags = 0;
 592 }
 593
 594
 595 static int find_pes_header(u8 const *buf, long int length, int *frags)
 596 {
 597         int c = 0;
 598         int found = 0;
 599
 600         *frags = 0;
 601
 602         while (c < length - 3 && !found) {
 603                 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 604                     buf[c + 2] == 0x01) {
 605                         switch ( buf[c + 3] ) {
 606                         case PROG_STREAM_MAP:
 607                         case PRIVATE_STREAM2:
 608                         case PROG_STREAM_DIR:
 609                         case ECM_STREAM     :
 610                         case EMM_STREAM     :
 611                         case PADDING_STREAM :
 612                         case DSM_CC_STREAM  :
 613                         case ISO13522_STREAM:
 614                         case PRIVATE_STREAM1:
 615                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 616                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 617                                 found = 1;
 618                                 break;
 619
 620                         default:
 621                                 c++;
 622                                 break;
 623                         }
 624                 } else
 625                         c++;
 626         }
 627         if (c == length - 3 && !found) {
 628                 if (buf[length - 1] == 0x00)
 629                         *frags = 1;
 630                 if (buf[length - 2] == 0x00 &&
 631                     buf[length - 1] == 0x00)
 632                         *frags = 2;
 633                 if (buf[length - 3] == 0x00 &&
 634                     buf[length - 2] == 0x00 &&
 635                     buf[length - 1] == 0x01)
 636                         *frags = 3;
 637                 return -1;
 638         }
 639
 640         return c;
 641 }
 642
 643 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 644 {
 645         int c, c2, l, add;
 646         int check, rest;
 647
 648         c = 0;
 649         c2 = 0;
 650         if (p->frags){
 651                 check = 0;
 652                 switch(p->frags) {
 653                 case 1:
 654                         if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 655                                 check = 1;
 656                                 c += 2;
 657                         }
 658                         break;
 659                 case 2:
 660                         if (buf[c] == 0x01) {
 661                                 check = 1;
 662                                 c++;
 663                         }
 664                         break;
 665                 case 3:
 666                         check = 1;
 667                 }
 668                 if (check) {
 669                         switch (buf[c]) {
 670                         case PROG_STREAM_MAP:
 671                         case PRIVATE_STREAM2:
 672                         case PROG_STREAM_DIR:
 673                         case ECM_STREAM     :
 674                         case EMM_STREAM     :
 675                         case PADDING_STREAM :
 676                         case DSM_CC_STREAM  :
 677                         case ISO13522_STREAM:
 678                         case PRIVATE_STREAM1:
 679                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 680                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 681                                 p->pes[0] = 0x00;
 682                                 p->pes[1] = 0x00;
 683                                 p->pes[2] = 0x01;
 684                                 p->pes[3] = buf[c];
 685                                 p->pos = 4;
 686                                 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 687                                 c += (TS_SIZE - 4) - p->pos;
 688                                 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 689                                 clear_p2t(p);
 690                                 break;
 691
 692                         default:
 693                                 c = 0;
 694                                 break;
 695                         }
 696                 }
 697                 p->frags = 0;
 698         }
 699
 700         if (p->pos) {
 701                 c2 = find_pes_header(buf + c, length - c, &p->frags);
 702                 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 703                         l = c2+c;
 704                 else
 705                         l = (TS_SIZE - 4) - p->pos;
 706                 memcpy(p->pes + p->pos, buf, l);
 707                 c += l;
 708                 p->pos += l;
 709                 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 710                 clear_p2t(p);
 711         }
 712
 713         add = 0;
 714         while (c < length) {
 715                 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 716                 if (c2 >= 0) {
 717                         c2 += c + add;
 718                         if (c2 > c){
 719                                 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 720                                 c = c2;
 721                                 clear_p2t(p);
 722                                 add = 0;
 723                         } else
 724                                 add = 1;
 725                 } else {
 726                         l = length - c;
 727                         rest = l % (TS_SIZE - 4);
 728                         l -= rest;
 729                         p_to_t(buf + c, l, pid, &p->counter, p->feed);
 730                         memcpy(p->pes, buf + c + l, rest);
 731                         p->pos = rest;
 732                         c = length;
 733                 }
 734         }
 735 }
 736
 737
 738 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 739 {
 740         int i;
 741         int c = 0;
 742         int fill;
 743         u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 744
 745         fill = (TS_SIZE - 4) - length;
 746         if (pes_start)
 747                 tshead[1] = 0x40;
 748         if (fill)
 749                 tshead[3] = 0x30;
 750         tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 751         tshead[2] |= (u8)(pid & 0x00FF);
 752         tshead[3] |= ((*counter)++ & 0x0F);
 753         memcpy(buf, tshead, 4);
 754         c += 4;
 755
 756         if (fill) {
 757                 buf[4] = fill - 1;
 758                 c++;
 759                 if (fill > 1) {
 760                         buf[5] = 0x00;
 761                         c++;
 762                 }
 763                 for (i = 6; i < fill + 4; i++) {
 764                         buf[i] = 0xFF;
 765                         c++;
 766                 }
 767         }
 768
 769         return c;
 770 }
 771
 772
 773 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 774                    struct dvb_demux_feed *feed)
 775 {
 776         int l, pes_start;
 777         u8 obuf[TS_SIZE];
 778         long c = 0;
 779
 780         pes_start = 0;
 781         if (length > 3 &&
 782              buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 783                 switch (buf[3]) {
 784                         case PROG_STREAM_MAP:
 785                         case PRIVATE_STREAM2:
 786                         case PROG_STREAM_DIR:
 787                         case ECM_STREAM     :
 788                         case EMM_STREAM     :
 789                         case PADDING_STREAM :
 790                         case DSM_CC_STREAM  :
 791                         case ISO13522_STREAM:
 792                         case PRIVATE_STREAM1:
 793                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 794                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 795                                 pes_start = 1;
 796                                 break;
 797
 798                         default:
 799                                 break;
 800                 }
 801
 802         while (c < length) {
 803                 memset(obuf, 0, TS_SIZE);
 804                 if (length - c >= (TS_SIZE - 4)){
 805                         l = write_ts_header2(pid, counter, pes_start,
 806                                              obuf, (TS_SIZE - 4));
 807                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 808                         c += TS_SIZE - l;
 809                 } else {
 810                         l = write_ts_header2(pid, counter, pes_start,
 811                                              obuf, length - c);
 812                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 813                         c = length;
 814                 }
 815                 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
 816                 pes_start = 0;
 817         }
 818 }
 819
 820
 821 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
 822 {
 823         struct ipack *ipack = &av7110->ipack[type];
 824
 825         if (buf[1] & TRANS_ERROR) {
 826                 av7110_ipack_reset(ipack);
 827                 return -1;
 828         }
 829
 830         if (!(buf[3] & PAYLOAD))
 831                 return -1;
 832
 833         if (buf[1] & PAY_START)
 834                 av7110_ipack_flush(ipack);
 835
 836         if (buf[3] & ADAPT_FIELD) {
 837                 len -= buf[4] + 1;
 838                 buf += buf[4] + 1;
 839                 if (!len)
 840                         return 0;
 841         }
 842
 843         av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
 844         return 0;
 845 }
 846
 847
 848 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 849 {
 850         struct dvb_demux *demux = feed->demux;
 851         struct av7110 *av7110 = (struct av7110 *) demux->priv;
 852
 853         dprintk(2, "av7110:%p, \n", av7110);
 854
 855         if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 856                 return 0;
 857
 858         switch (feed->pes_type) {
 859         case 0:
 860                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 861                         return -EINVAL;
 862                 break;
 863         case 1:
 864                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 865                         return -EINVAL;
 866                 break;
 867         default:
 868                 return -1;
 869         }
 870
 871         return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
 872 }
 873
 874
 875
 876 /******************************************************************************
 877  * Video MPEG decoder events
 878  ******************************************************************************/
 879 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 880 {
 881         struct dvb_video_events *events = &av7110->video_events;
 882         int wp;
 883
 884         spin_lock_bh(&events->lock);
 885
 886         wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 887         if (wp == events->eventr) {
 888                 events->overflow = 1;
 889                 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 890         }
 891
 892         //FIXME: timestamp?
 893         memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 894         events->eventw = wp;
 895
 896         spin_unlock_bh(&events->lock);
 897
 898         wake_up_interruptible(&events->wait_queue);
 899 }
 900
 901
 902 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 903 {
 904         struct dvb_video_events *events = &av7110->video_events;
 905
 906         if (events->overflow) {
 907                 events->overflow = 0;
 908                 return -EOVERFLOW;
 909         }
 910         if (events->eventw == events->eventr) {
 911                 int ret;
 912
 913                 if (flags & O_NONBLOCK)
 914                         return -EWOULDBLOCK;
 915
 916                 ret = wait_event_interruptible(events->wait_queue,
 917                                                events->eventw != events->eventr);
 918                 if (ret < 0)
 919                         return ret;
 920         }
 921
 922         spin_lock_bh(&events->lock);
 923
 924         memcpy(event, &events->events[events->eventr],
 925                sizeof(struct video_event));
 926         events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 927
 928         spin_unlock_bh(&events->lock);
 929
 930         return 0;
 931 }
 932
 933
 934 /******************************************************************************
 935  * DVB device file operations
 936  ******************************************************************************/
 937
 938 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
 939 {
 940         struct dvb_device *dvbdev = file->private_data;
 941         struct av7110 *av7110 = dvbdev->priv;
 942         unsigned int mask = 0;
 943
 944         dprintk(2, "av7110:%p, \n", av7110);
 945
 946         if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 947                 poll_wait(file, &av7110->avout.queue, wait);
 948
 949         poll_wait(file, &av7110->video_events.wait_queue, wait);
 950
 951         if (av7110->video_events.eventw != av7110->video_events.eventr)
 952                 mask = POLLPRI;
 953
 954         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 955                 if (av7110->playing) {
 956                         if (FREE_COND)
 957                                 mask |= (POLLOUT | POLLWRNORM);
 958                         } else /* if not playing: may play if asked for */
 959                                 mask |= (POLLOUT | POLLWRNORM);
 960         }
 961
 962         return mask;
 963 }
 964
 965 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 966                                size_t count, loff_t *ppos)
 967 {
 968         struct dvb_device *dvbdev = file->private_data;
 969         struct av7110 *av7110 = dvbdev->priv;
 970         unsigned char c;
 971
 972         dprintk(2, "av7110:%p, \n", av7110);
 973
 974         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 975                 return -EPERM;
 976
 977         if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 978                 return -EPERM;
 979
 980         if (get_user(c, buf))
 981                 return -EFAULT;
 982         if (c == 0x47 && count % TS_SIZE == 0)
 983                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 984         else
 985                 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 986 }
 987
 988 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
 989 {
 990         struct dvb_device *dvbdev = file->private_data;
 991         struct av7110 *av7110 = dvbdev->priv;
 992         unsigned int mask = 0;
 993
 994         dprintk(2, "av7110:%p, \n", av7110);
 995
 996         poll_wait(file, &av7110->aout.queue, wait);
 997
 998         if (av7110->playing) {
 999                 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1000                         mask |= (POLLOUT | POLLWRNORM);
1001         } else /* if not playing: may play if asked for */
1002                 mask = (POLLOUT | POLLWRNORM);
1003
1004         return mask;
1005 }
1006
1007 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1008                                size_t count, loff_t *ppos)
1009 {
1010         struct dvb_device *dvbdev = file->private_data;
1011         struct av7110 *av7110 = dvbdev->priv;
1012         unsigned char c;
1013
1014         dprintk(2, "av7110:%p, \n", av7110);
1015
1016         if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1017                 printk(KERN_ERR "not audio source memory\n");
1018                 return -EPERM;
1019         }
1020
1021         if (get_user(c, buf))
1022                 return -EFAULT;
1023         if (c == 0x47 && count % TS_SIZE == 0)
1024                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1025         else
1026                 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1027 }
1028
1029 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1030
1031 #define MIN_IFRAME 400000
1032
1033 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1034 {
1035         unsigned i, n;
1036         int progressive = 0;
1037         int match = 0;
1038
1039         dprintk(2, "av7110:%p, \n", av7110);
1040
1041         if (!(av7110->playing & RP_VIDEO)) {
1042                 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1043                         return -EBUSY;
1044         }
1045
1046         /* search in buf for instances of 00 00 01 b5 1? */
1047         for (i = 0; i < len; i++) {
1048                 unsigned char c;
1049                 if (get_user(c, buf + i))
1050                         return -EFAULT;
1051                 if (match == 5) {
1052                         progressive = c & 0x08;
1053                         match = 0;
1054                 }
1055                 if (c == 0x00) {
1056                         match = (match == 1 || match == 2) ? 2 : 1;
1057                         continue;
1058                 }
1059                 switch (match++) {
1060                 case 2: if (c == 0x01)
1061                                 continue;
1062                         break;
1063                 case 3: if (c == 0xb5)
1064                                 continue;
1065                         break;
1066                 case 4: if ((c & 0xf0) == 0x10)
1067                                 continue;
1068                         break;
1069                 }
1070                 match = 0;
1071         }
1072
1073         /* setting n always > 1, fixes problems when playing stillframes
1074            consisting of I- and P-Frames */
1075         n = MIN_IFRAME / len + 1;
1076
1077         /* FIXME: nonblock? */
1078         dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1079
1080         for (i = 0; i < n; i++)
1081                 dvb_play(av7110, buf, len, 0, 1);
1082
1083         av7110_ipack_flush(&av7110->ipack[1]);
1084
1085         if (progressive)
1086                 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1087         else
1088                 return 0;
1089 }
1090
1091
1092 static int dvb_video_ioctl(struct inode *inode, struct file *file,
1093                            unsigned int cmd, void *parg)
1094 {
1095         struct dvb_device *dvbdev = file->private_data;
1096         struct av7110 *av7110 = dvbdev->priv;
1097         unsigned long arg = (unsigned long) parg;
1098         int ret = 0;
1099
1100         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1101
1102         if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1103                 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1104                      cmd != VIDEO_GET_SIZE ) {
1105                         return -EPERM;
1106                 }
1107         }
1108
1109         switch (cmd) {
1110         case VIDEO_STOP:
1111                 av7110->videostate.play_state = VIDEO_STOPPED;
1112                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1113                         ret = av7110_av_stop(av7110, RP_VIDEO);
1114                 else
1115                         ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1116                                av7110->videostate.video_blank ? 0 : 1);
1117                 if (!ret)
1118                         av7110->trickmode = TRICK_NONE;
1119                 break;
1120
1121         case VIDEO_PLAY:
1122                 av7110->trickmode = TRICK_NONE;
1123                 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1124                         av7110->videostate.play_state = VIDEO_PLAYING;
1125                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1126                         if (ret)
1127                                 break;
1128                 }
1129                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1130                         if (av7110->playing == RP_AV) {
1131                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1132                                 if (ret)
1133                                         break;
1134                                 av7110->playing &= ~RP_VIDEO;
1135                         }
1136                         ret = av7110_av_start_play(av7110, RP_VIDEO);
1137                 }
1138                 if (!ret)
1139                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1140                 if (!ret)
1141                         av7110->videostate.play_state = VIDEO_PLAYING;
1142                 break;
1143
1144         case VIDEO_FREEZE:
1145                 av7110->videostate.play_state = VIDEO_FREEZED;
1146                 if (av7110->playing & RP_VIDEO)
1147                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1148                 else
1149                         ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1150                 if (!ret)
1151                         av7110->trickmode = TRICK_FREEZE;
1152                 break;
1153
1154         case VIDEO_CONTINUE:
1155                 if (av7110->playing & RP_VIDEO)
1156                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1157                 if (!ret)
1158                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1159                 if (!ret) {
1160                         av7110->videostate.play_state = VIDEO_PLAYING;
1161                         av7110->trickmode = TRICK_NONE;
1162                 }
1163                 break;
1164
1165         case VIDEO_SELECT_SOURCE:
1166                 av7110->videostate.stream_source = (video_stream_source_t) arg;
1167                 break;
1168
1169         case VIDEO_SET_BLANK:
1170                 av7110->videostate.video_blank = (int) arg;
1171                 break;
1172
1173         case VIDEO_GET_STATUS:
1174                 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1175                 break;
1176
1177         case VIDEO_GET_EVENT:
1178                 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1179                 break;
1180
1181         case VIDEO_GET_SIZE:
1182                 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1183                 break;
1184
1185         case VIDEO_SET_DISPLAY_FORMAT:
1186         {
1187                 video_displayformat_t format = (video_displayformat_t) arg;
1188                 switch (format) {
1189                 case VIDEO_PAN_SCAN:
1190                         av7110->display_panscan = VID_PAN_SCAN_PREF;
1191                         break;
1192                 case VIDEO_LETTER_BOX:
1193                         av7110->display_panscan = VID_VC_AND_PS_PREF;
1194                         break;
1195                 case VIDEO_CENTER_CUT_OUT:
1196                         av7110->display_panscan = VID_CENTRE_CUT_PREF;
1197                         break;
1198                 default:
1199                         ret = -EINVAL;
1200                 }
1201                 if (ret < 0)
1202                         break;
1203                 av7110->videostate.display_format = format;
1204                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1205                                     1, av7110->display_panscan);
1206                 break;
1207         }
1208
1209         case VIDEO_SET_FORMAT:
1210                 if (arg > 1) {
1211                         ret = -EINVAL;
1212                         break;
1213                 }
1214                 av7110->display_ar = arg;
1215                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1216                                     1, (u16) arg);
1217                 break;
1218
1219         case VIDEO_STILLPICTURE:
1220         {
1221                 struct video_still_picture *pic =
1222                         (struct video_still_picture *) parg;
1223                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1224                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1225                 ret = play_iframe(av7110, pic->iFrame, pic->size,
1226                                   file->f_flags & O_NONBLOCK);
1227                 break;
1228         }
1229
1230         case VIDEO_FAST_FORWARD:
1231                 //note: arg is ignored by firmware
1232                 if (av7110->playing & RP_VIDEO)
1233                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1234                                             __Scan_I, 2, AV_PES, 0);
1235                 else
1236                         ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1237                 if (!ret) {
1238                         av7110->trickmode = TRICK_FAST;
1239                         av7110->videostate.play_state = VIDEO_PLAYING;
1240                 }
1241                 break;
1242
1243         case VIDEO_SLOWMOTION:
1244                 if (av7110->playing&RP_VIDEO) {
1245                         if (av7110->trickmode != TRICK_SLOW)
1246                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1247                         if (!ret)
1248                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1249                 } else {
1250                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1251                         if (!ret)
1252                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1253                         if (!ret)
1254                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1255                 }
1256                 if (!ret) {
1257                         av7110->trickmode = TRICK_SLOW;
1258                         av7110->videostate.play_state = VIDEO_PLAYING;
1259                 }
1260                 break;
1261
1262         case VIDEO_GET_CAPABILITIES:
1263                 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1264                         VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1265                 break;
1266
1267         case VIDEO_CLEAR_BUFFER:
1268                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1269                 av7110_ipack_reset(&av7110->ipack[1]);
1270                 if (av7110->playing == RP_AV) {
1271                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1272                                             __Play, 2, AV_PES, 0);
1273                         if (ret)
1274                                 break;
1275                         if (av7110->trickmode == TRICK_FAST)
1276                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1277                                                     __Scan_I, 2, AV_PES, 0);
1278                         if (av7110->trickmode == TRICK_SLOW) {
1279                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1280                                                     __Slow, 2, 0, 0);
1281                                 if (!ret)
1282                                         ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1283                         }
1284                         if (av7110->trickmode == TRICK_FREEZE)
1285                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1286                 }
1287                 break;
1288
1289         case VIDEO_SET_STREAMTYPE:
1290                 break;
1291
1292         default:
1293                 ret = -ENOIOCTLCMD;
1294                 break;
1295         }
1296
1297         return ret;
1298 }
1299
1300 static int dvb_audio_ioctl(struct inode *inode, struct file *file,
1301                            unsigned int cmd, void *parg)
1302 {
1303         struct dvb_device *dvbdev = file->private_data;
1304         struct av7110 *av7110 = dvbdev->priv;
1305         unsigned long arg = (unsigned long) parg;
1306         int ret = 0;
1307
1308         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1309
1310         if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1311             (cmd != AUDIO_GET_STATUS))
1312                 return -EPERM;
1313
1314         switch (cmd) {
1315         case AUDIO_STOP:
1316                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1317                         ret = av7110_av_stop(av7110, RP_AUDIO);
1318                 else
1319                         ret = audcom(av7110, AUDIO_CMD_MUTE);
1320                 if (!ret)
1321                         av7110->audiostate.play_state = AUDIO_STOPPED;
1322                 break;
1323
1324         case AUDIO_PLAY:
1325                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1326                         ret = av7110_av_start_play(av7110, RP_AUDIO);
1327                 if (!ret)
1328                         ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1329                 if (!ret)
1330                         av7110->audiostate.play_state = AUDIO_PLAYING;
1331                 break;
1332
1333         case AUDIO_PAUSE:
1334                 ret = audcom(av7110, AUDIO_CMD_MUTE);
1335                 if (!ret)
1336                         av7110->audiostate.play_state = AUDIO_PAUSED;
1337                 break;
1338
1339         case AUDIO_CONTINUE:
1340                 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1341                         av7110->audiostate.play_state = AUDIO_PLAYING;
1342                         ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1343                 }
1344                 break;
1345
1346         case AUDIO_SELECT_SOURCE:
1347                 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1348                 break;
1349
1350         case AUDIO_SET_MUTE:
1351         {
1352                 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1353                 if (!ret)
1354                         av7110->audiostate.mute_state = (int) arg;
1355                 break;
1356         }
1357
1358         case AUDIO_SET_AV_SYNC:
1359                 av7110->audiostate.AV_sync_state = (int) arg;
1360                 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1361                 break;
1362
1363         case AUDIO_SET_BYPASS_MODE:
1364                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1365                         ret = -EINVAL;
1366                 av7110->audiostate.bypass_mode = (int)arg;
1367                 break;
1368
1369         case AUDIO_CHANNEL_SELECT:
1370                 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1371                 switch(av7110->audiostate.channel_select) {
1372                 case AUDIO_STEREO:
1373                         ret = audcom(av7110, AUDIO_CMD_STEREO);
1374                         if (!ret) {
1375                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1376                                         i2c_writereg(av7110, 0x20, 0x02, 0x49);
1377                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1378                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1379                         }
1380                         break;
1381                 case AUDIO_MONO_LEFT:
1382                         ret = audcom(av7110, AUDIO_CMD_MONO_L);
1383                         if (!ret) {
1384                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1385                                         i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1386                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1387                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1388                         }
1389                         break;
1390                 case AUDIO_MONO_RIGHT:
1391                         ret = audcom(av7110, AUDIO_CMD_MONO_R);
1392                         if (!ret) {
1393                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1394                                         i2c_writereg(av7110, 0x20, 0x02, 0x45);
1395                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1396                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1397                         }
1398                         break;
1399                 default:
1400                         ret = -EINVAL;
1401                         break;
1402                 }
1403                 break;
1404
1405         case AUDIO_GET_STATUS:
1406                 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1407                 break;
1408
1409         case AUDIO_GET_CAPABILITIES:
1410                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1411                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1412                 else
1413                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1414                                                 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1415                 break;
1416
1417         case AUDIO_CLEAR_BUFFER:
1418                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1419                 av7110_ipack_reset(&av7110->ipack[0]);
1420                 if (av7110->playing == RP_AV)
1421                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1422                                             __Play, 2, AV_PES, 0);
1423                 break;
1424
1425         case AUDIO_SET_ID:
1426                 break;
1427
1428         case AUDIO_SET_MIXER:
1429         {
1430                 struct audio_mixer *amix = (struct audio_mixer *)parg;
1431                 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1432                 break;
1433         }
1434
1435         case AUDIO_SET_STREAMTYPE:
1436                 break;
1437
1438         default:
1439                 ret = -ENOIOCTLCMD;
1440         }
1441
1442         return ret;
1443 }
1444
1445
1446 static int dvb_video_open(struct inode *inode, struct file *file)
1447 {
1448         struct dvb_device *dvbdev = file->private_data;
1449         struct av7110 *av7110 = dvbdev->priv;
1450         int err;
1451
1452         dprintk(2, "av7110:%p, \n", av7110);
1453
1454         if ((err = dvb_generic_open(inode, file)) < 0)
1455                 return err;
1456
1457         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1458                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1459                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1460                 av7110->video_blank = 1;
1461                 av7110->audiostate.AV_sync_state = 1;
1462                 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1463
1464                 /*  empty event queue */
1465                 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1466         }
1467
1468         return 0;
1469 }
1470
1471 static int dvb_video_release(struct inode *inode, struct file *file)
1472 {
1473         struct dvb_device *dvbdev = file->private_data;
1474         struct av7110 *av7110 = dvbdev->priv;
1475
1476         dprintk(2, "av7110:%p, \n", av7110);
1477
1478         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1479                 av7110_av_stop(av7110, RP_VIDEO);
1480         }
1481
1482         return dvb_generic_release(inode, file);
1483 }
1484
1485 static int dvb_audio_open(struct inode *inode, struct file *file)
1486 {
1487         struct dvb_device *dvbdev = file->private_data;
1488         struct av7110 *av7110 = dvbdev->priv;
1489         int err = dvb_generic_open(inode, file);
1490
1491         dprintk(2, "av7110:%p, \n", av7110);
1492
1493         if (err < 0)
1494                 return err;
1495         dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1496         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1497         return 0;
1498 }
1499
1500 static int dvb_audio_release(struct inode *inode, struct file *file)
1501 {
1502         struct dvb_device *dvbdev = file->private_data;
1503         struct av7110 *av7110 = dvbdev->priv;
1504
1505         dprintk(2, "av7110:%p, \n", av7110);
1506
1507         av7110_av_stop(av7110, RP_AUDIO);
1508         return dvb_generic_release(inode, file);
1509 }
1510
1511
1512
1513 /******************************************************************************
1514  * driver registration
1515  ******************************************************************************/
1516
1517 static const struct file_operations dvb_video_fops = {
1518         .owner          = THIS_MODULE,
1519         .write          = dvb_video_write,
1520         .ioctl          = dvb_generic_ioctl,
1521         .open           = dvb_video_open,
1522         .release        = dvb_video_release,
1523         .poll           = dvb_video_poll,
1524 };
1525
1526 static struct dvb_device dvbdev_video = {
1527         .priv           = NULL,
1528         .users          = 6,
1529         .readers        = 5,    /* arbitrary */
1530         .writers        = 1,
1531         .fops           = &dvb_video_fops,
1532         .kernel_ioctl   = dvb_video_ioctl,
1533 };
1534
1535 static const struct file_operations dvb_audio_fops = {
1536         .owner          = THIS_MODULE,
1537         .write          = dvb_audio_write,
1538         .ioctl          = dvb_generic_ioctl,
1539         .open           = dvb_audio_open,
1540         .release        = dvb_audio_release,
1541         .poll           = dvb_audio_poll,
1542 };
1543
1544 static struct dvb_device dvbdev_audio = {
1545         .priv           = NULL,
1546         .users          = 1,
1547         .writers        = 1,
1548         .fops           = &dvb_audio_fops,
1549         .kernel_ioctl   = dvb_audio_ioctl,
1550 };
1551
1552
1553 int av7110_av_register(struct av7110 *av7110)
1554 {
1555         av7110->audiostate.AV_sync_state = 0;
1556         av7110->audiostate.mute_state = 0;
1557         av7110->audiostate.play_state = AUDIO_STOPPED;
1558         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1559         av7110->audiostate.channel_select = AUDIO_STEREO;
1560         av7110->audiostate.bypass_mode = 0;
1561
1562         av7110->videostate.video_blank = 0;
1563         av7110->videostate.play_state = VIDEO_STOPPED;
1564         av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1565         av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1566         av7110->videostate.display_format = VIDEO_LETTER_BOX;
1567         av7110->display_ar = VIDEO_FORMAT_4_3;
1568         av7110->display_panscan = VID_VC_AND_PS_PREF;
1569
1570         init_waitqueue_head(&av7110->video_events.wait_queue);
1571         spin_lock_init(&av7110->video_events.lock);
1572         av7110->video_events.eventw = av7110->video_events.eventr = 0;
1573         av7110->video_events.overflow = 0;
1574         memset(&av7110->video_size, 0, sizeof (video_size_t));
1575
1576         dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1577                             &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1578
1579         dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1580                             &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1581
1582         return 0;
1583 }
1584
1585 void av7110_av_unregister(struct av7110 *av7110)
1586 {
1587         dvb_unregister_device(av7110->audio_dev);
1588         dvb_unregister_device(av7110->video_dev);
1589 }
1590
1591 int av7110_av_init(struct av7110 *av7110)
1592 {
1593         void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1594         int i, ret;
1595
1596         for (i = 0; i < 2; i++) {
1597                 struct ipack *ipack = av7110->ipack + i;
1598
1599                 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1600                 if (ret < 0) {
1601                         if (i)
1602                                 av7110_ipack_free(--ipack);
1603                         goto out;
1604                 }
1605                 ipack->data = av7110;
1606         }
1607
1608         dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1609         dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1610
1611         av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1612         av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1613 out:
1614         return ret;
1615 }
1616
1617 void av7110_av_exit(struct av7110 *av7110)
1618 {
1619         av7110_ipack_free(&av7110->ipack[0]);
1620         av7110_ipack_free(&av7110->ipack[1]);
1621 }