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  *
  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 https://linuxtv.org
  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);
 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);
 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                 len = dvb_ringbuffer_avail(buf);
 249                 if (len < 6) {
 250                         wake_up(&buf->queue);
 251                         return -1;
 252                 }
 253                 sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
 254                 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
 255                 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
 256                 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
 257
 258                 if (((sync &~ 0x0f) == 0x000001e0) ||
 259                     ((sync &~ 0x1f) == 0x000001c0) ||
 260                     (sync == 0x000001bd))
 261                         break;
 262                 printk("resync\n");
 263                 DVB_RINGBUFFER_SKIP(buf, 1);
 264         }
 265         blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
 266         blen |= DVB_RINGBUFFER_PEEK(buf, 5);
 267         blen += 6;
 268         if (len < blen || blen > dlen) {
 269                 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
 270                 wake_up(&buf->queue);
 271                 return -1;
 272         }
 273
 274         dvb_ringbuffer_read(buf, dest, (size_t) blen);
 275
 276         dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
 277                (unsigned long) buf->pread, (unsigned long) buf->pwrite);
 278         wake_up(&buf->queue);
 279         return blen;
 280 }
 281
 282
 283 int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
 284                       unsigned int volright)
 285 {
 286         unsigned int vol, val, balance = 0;
 287         int err;
 288
 289         dprintk(2, "av7110:%p, \n", av7110);
 290
 291         av7110->mixer.volume_left = volleft;
 292         av7110->mixer.volume_right = volright;
 293
 294         switch (av7110->adac_type) {
 295         case DVB_ADAC_TI:
 296                 volleft = (volleft * 256) / 1036;
 297                 volright = (volright * 256) / 1036;
 298                 if (volleft > 0x3f)
 299                         volleft = 0x3f;
 300                 if (volright > 0x3f)
 301                         volright = 0x3f;
 302                 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 303                         return err;
 304                 return SendDAC(av7110, 4, volright);
 305
 306         case DVB_ADAC_CRYSTAL:
 307                 volleft = 127 - volleft / 2;
 308                 volright = 127 - volright / 2;
 309                 i2c_writereg(av7110, 0x20, 0x03, volleft);
 310                 i2c_writereg(av7110, 0x20, 0x04, volright);
 311                 return 0;
 312
 313         case DVB_ADAC_MSP34x0:
 314                 vol  = (volleft > volright) ? volleft : volright;
 315                 val     = (vol * 0x73 / 255) << 8;
 316                 if (vol > 0)
 317                        balance = ((volright - volleft) * 127) / vol;
 318                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 319                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 320                 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 321                 return 0;
 322
 323         case DVB_ADAC_MSP34x5:
 324                 vol = (volleft > volright) ? volleft : volright;
 325                 val = (vol * 0x73 / 255) << 8;
 326                 if (vol > 0)
 327                         balance = ((volright - volleft) * 127) / vol;
 328                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 329                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 330                 return 0;
 331         }
 332
 333         return 0;
 334 }
 335
 336 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 337 {
 338         int ret;
 339         dprintk(2, "av7110:%p, \n", av7110);
 340
 341         ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 342
 343         if (!ret && !av7110->playing) {
 344                 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 345                            av7110->pids[DMX_PES_AUDIO],
 346                            av7110->pids[DMX_PES_TELETEXT],
 347                            0, av7110->pids[DMX_PES_PCR]);
 348                 if (!ret)
 349                         ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 350         }
 351         return ret;
 352 }
 353
 354
 355 static enum av7110_video_mode sw2mode[16] = {
 356         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 357         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 358         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 359         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 360         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 361         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 362         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 363         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 364 };
 365
 366 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 367 {
 368         int i;
 369         int hsize, vsize;
 370         int sw;
 371         u8 *p;
 372         int ret = 0;
 373
 374         dprintk(2, "av7110:%p, \n", av7110);
 375
 376         if (av7110->sinfo)
 377                 return 0;
 378         for (i = 7; i < count - 10; i++) {
 379                 p = buf + i;
 380                 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 381                         continue;
 382                 p += 4;
 383                 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 384                 vsize = ((p[1] &0x0F) << 8) | (p[2]);
 385                 sw = (p[3] & 0x0F);
 386                 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 387                 if (!ret) {
 388                         dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 389                         av7110->sinfo = 1;
 390                 }
 391                 break;
 392         }
 393         return ret;
 394 }
 395
 396
 397 /****************************************************************************
 398  * I/O buffer management and control
 399  ****************************************************************************/
 400
 401 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 402                                          const u8 *buf, unsigned long count)
 403 {
 404         unsigned long todo = count;
 405         int free;
 406
 407         while (todo > 0) {
 408                 if (dvb_ringbuffer_free(rbuf) < 2048) {
 409                         if (wait_event_interruptible(rbuf->queue,
 410                                                      (dvb_ringbuffer_free(rbuf) >= 2048)))
 411                                 return count - todo;
 412                 }
 413                 free = dvb_ringbuffer_free(rbuf);
 414                 if (free > todo)
 415                         free = todo;
 416                 dvb_ringbuffer_write(rbuf, buf, free);
 417                 todo -= free;
 418                 buf += free;
 419         }
 420
 421         return count - todo;
 422 }
 423
 424 static void play_video_cb(u8 *buf, int count, void *priv)
 425 {
 426         struct av7110 *av7110 = (struct av7110 *) priv;
 427         dprintk(2, "av7110:%p, \n", av7110);
 428
 429         if ((buf[3] & 0xe0) == 0xe0) {
 430                 get_video_format(av7110, buf, count);
 431                 aux_ring_buffer_write(&av7110->avout, buf, count);
 432         } else
 433                 aux_ring_buffer_write(&av7110->aout, buf, count);
 434 }
 435
 436 static void play_audio_cb(u8 *buf, int count, void *priv)
 437 {
 438         struct av7110 *av7110 = (struct av7110 *) priv;
 439         dprintk(2, "av7110:%p, \n", av7110);
 440
 441         aux_ring_buffer_write(&av7110->aout, buf, count);
 442 }
 443
 444
 445 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
 446
 447 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
 448                        unsigned long count, int nonblock, int type)
 449 {
 450         struct dvb_ringbuffer *rb;
 451         u8 *kb;
 452         unsigned long todo = count;
 453
 454         dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
 455
 456         rb = (type) ? &av7110->avout : &av7110->aout;
 457         kb = av7110->kbuf[type];
 458
 459         if (!kb)
 460                 return -ENOBUFS;
 461
 462         if (nonblock && !FREE_COND_TS)
 463                 return -EWOULDBLOCK;
 464
 465         while (todo >= TS_SIZE) {
 466                 if (!FREE_COND_TS) {
 467                         if (nonblock)
 468                                 return count - todo;
 469                         if (wait_event_interruptible(rb->queue, FREE_COND_TS))
 470                                 return count - todo;
 471                 }
 472                 if (copy_from_user(kb, buf, TS_SIZE))
 473                         return -EFAULT;
 474                 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
 475                 todo -= TS_SIZE;
 476                 buf += TS_SIZE;
 477         }
 478
 479         return count - todo;
 480 }
 481
 482
 483 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 484                    dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 485
 486 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 487                         unsigned long count, int nonblock, int type)
 488 {
 489         unsigned long todo = count, n;
 490         dprintk(2, "av7110:%p, \n", av7110);
 491
 492         if (!av7110->kbuf[type])
 493                 return -ENOBUFS;
 494
 495         if (nonblock && !FREE_COND)
 496                 return -EWOULDBLOCK;
 497
 498         while (todo > 0) {
 499                 if (!FREE_COND) {
 500                         if (nonblock)
 501                                 return count - todo;
 502                         if (wait_event_interruptible(av7110->avout.queue,
 503                                                      FREE_COND))
 504                                 return count - todo;
 505                 }
 506                 n = todo;
 507                 if (n > IPACKS * 2)
 508                         n = IPACKS * 2;
 509                 if (copy_from_user(av7110->kbuf[type], buf, n))
 510                         return -EFAULT;
 511                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 512                                             &av7110->ipack[type]);
 513                 todo -= n;
 514                 buf += n;
 515         }
 516         return count - todo;
 517 }
 518
 519 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 520                         unsigned long count, int nonblock, int type)
 521 {
 522         unsigned long todo = count, n;
 523         dprintk(2, "av7110:%p, \n", av7110);
 524
 525         if (!av7110->kbuf[type])
 526                 return -ENOBUFS;
 527
 528         if (nonblock && !FREE_COND)
 529                 return -EWOULDBLOCK;
 530
 531         while (todo > 0) {
 532                 if (!FREE_COND) {
 533                         if (nonblock)
 534                                 return count - todo;
 535                         if (wait_event_interruptible(av7110->avout.queue,
 536                                                      FREE_COND))
 537                                 return count - todo;
 538                 }
 539                 n = todo;
 540                 if (n > IPACKS * 2)
 541                         n = IPACKS * 2;
 542                 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 543                 todo -= n;
 544                 buf += n;
 545         }
 546         return count - todo;
 547 }
 548
 549 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 550                          unsigned long count, int nonblock, int type)
 551 {
 552         unsigned long todo = count, n;
 553         dprintk(2, "av7110:%p, \n", av7110);
 554
 555         if (!av7110->kbuf[type])
 556                 return -ENOBUFS;
 557         if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 558                 return -EWOULDBLOCK;
 559
 560         while (todo > 0) {
 561                 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 562                         if (nonblock)
 563                                 return count - todo;
 564                         if (wait_event_interruptible(av7110->aout.queue,
 565                                         (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 566                                 return count-todo;
 567                 }
 568                 n = todo;
 569                 if (n > IPACKS * 2)
 570                         n = IPACKS * 2;
 571                 if (copy_from_user(av7110->kbuf[type], buf, n))
 572                         return -EFAULT;
 573                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 574                                             &av7110->ipack[type]);
 575                 todo -= n;
 576                 buf += n;
 577         }
 578         return count - todo;
 579 }
 580
 581 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 582 {
 583         memset(p->pes, 0, TS_SIZE);
 584         p->counter = 0;
 585         p->pos = 0;
 586         p->frags = 0;
 587         if (feed)
 588                 p->feed = feed;
 589 }
 590
 591 static void clear_p2t(struct av7110_p2t *p)
 592 {
 593         memset(p->pes, 0, TS_SIZE);
 594 //      p->counter = 0;
 595         p->pos = 0;
 596         p->frags = 0;
 597 }
 598
 599
 600 static int find_pes_header(u8 const *buf, long int length, int *frags)
 601 {
 602         int c = 0;
 603         int found = 0;
 604
 605         *frags = 0;
 606
 607         while (c < length - 3 && !found) {
 608                 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 609                     buf[c + 2] == 0x01) {
 610                         switch ( buf[c + 3] ) {
 611                         case PROG_STREAM_MAP:
 612                         case PRIVATE_STREAM2:
 613                         case PROG_STREAM_DIR:
 614                         case ECM_STREAM     :
 615                         case EMM_STREAM     :
 616                         case PADDING_STREAM :
 617                         case DSM_CC_STREAM  :
 618                         case ISO13522_STREAM:
 619                         case PRIVATE_STREAM1:
 620                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 621                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 622                                 found = 1;
 623                                 break;
 624
 625                         default:
 626                                 c++;
 627                                 break;
 628                         }
 629                 } else
 630                         c++;
 631         }
 632         if (c == length - 3 && !found) {
 633                 if (buf[length - 1] == 0x00)
 634                         *frags = 1;
 635                 if (buf[length - 2] == 0x00 &&
 636                     buf[length - 1] == 0x00)
 637                         *frags = 2;
 638                 if (buf[length - 3] == 0x00 &&
 639                     buf[length - 2] == 0x00 &&
 640                     buf[length - 1] == 0x01)
 641                         *frags = 3;
 642                 return -1;
 643         }
 644
 645         return c;
 646 }
 647
 648 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 649 {
 650         int c, c2, l, add;
 651         int check, rest;
 652
 653         c = 0;
 654         c2 = 0;
 655         if (p->frags){
 656                 check = 0;
 657                 switch(p->frags) {
 658                 case 1:
 659                         if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 660                                 check = 1;
 661                                 c += 2;
 662                         }
 663                         break;
 664                 case 2:
 665                         if (buf[c] == 0x01) {
 666                                 check = 1;
 667                                 c++;
 668                         }
 669                         break;
 670                 case 3:
 671                         check = 1;
 672                 }
 673                 if (check) {
 674                         switch (buf[c]) {
 675                         case PROG_STREAM_MAP:
 676                         case PRIVATE_STREAM2:
 677                         case PROG_STREAM_DIR:
 678                         case ECM_STREAM     :
 679                         case EMM_STREAM     :
 680                         case PADDING_STREAM :
 681                         case DSM_CC_STREAM  :
 682                         case ISO13522_STREAM:
 683                         case PRIVATE_STREAM1:
 684                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 685                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 686                                 p->pes[0] = 0x00;
 687                                 p->pes[1] = 0x00;
 688                                 p->pes[2] = 0x01;
 689                                 p->pes[3] = buf[c];
 690                                 p->pos = 4;
 691                                 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 692                                 c += (TS_SIZE - 4) - p->pos;
 693                                 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 694                                 clear_p2t(p);
 695                                 break;
 696
 697                         default:
 698                                 c = 0;
 699                                 break;
 700                         }
 701                 }
 702                 p->frags = 0;
 703         }
 704
 705         if (p->pos) {
 706                 c2 = find_pes_header(buf + c, length - c, &p->frags);
 707                 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 708                         l = c2+c;
 709                 else
 710                         l = (TS_SIZE - 4) - p->pos;
 711                 memcpy(p->pes + p->pos, buf, l);
 712                 c += l;
 713                 p->pos += l;
 714                 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 715                 clear_p2t(p);
 716         }
 717
 718         add = 0;
 719         while (c < length) {
 720                 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 721                 if (c2 >= 0) {
 722                         c2 += c + add;
 723                         if (c2 > c){
 724                                 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 725                                 c = c2;
 726                                 clear_p2t(p);
 727                                 add = 0;
 728                         } else
 729                                 add = 1;
 730                 } else {
 731                         l = length - c;
 732                         rest = l % (TS_SIZE - 4);
 733                         l -= rest;
 734                         p_to_t(buf + c, l, pid, &p->counter, p->feed);
 735                         memcpy(p->pes, buf + c + l, rest);
 736                         p->pos = rest;
 737                         c = length;
 738                 }
 739         }
 740 }
 741
 742
 743 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 744 {
 745         int i;
 746         int c = 0;
 747         int fill;
 748         u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 749
 750         fill = (TS_SIZE - 4) - length;
 751         if (pes_start)
 752                 tshead[1] = 0x40;
 753         if (fill)
 754                 tshead[3] = 0x30;
 755         tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 756         tshead[2] |= (u8)(pid & 0x00FF);
 757         tshead[3] |= ((*counter)++ & 0x0F);
 758         memcpy(buf, tshead, 4);
 759         c += 4;
 760
 761         if (fill) {
 762                 buf[4] = fill - 1;
 763                 c++;
 764                 if (fill > 1) {
 765                         buf[5] = 0x00;
 766                         c++;
 767                 }
 768                 for (i = 6; i < fill + 4; i++) {
 769                         buf[i] = 0xFF;
 770                         c++;
 771                 }
 772         }
 773
 774         return c;
 775 }
 776
 777
 778 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 779                    struct dvb_demux_feed *feed)
 780 {
 781         int l, pes_start;
 782         u8 obuf[TS_SIZE];
 783         long c = 0;
 784
 785         pes_start = 0;
 786         if (length > 3 &&
 787              buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 788                 switch (buf[3]) {
 789                         case PROG_STREAM_MAP:
 790                         case PRIVATE_STREAM2:
 791                         case PROG_STREAM_DIR:
 792                         case ECM_STREAM     :
 793                         case EMM_STREAM     :
 794                         case PADDING_STREAM :
 795                         case DSM_CC_STREAM  :
 796                         case ISO13522_STREAM:
 797                         case PRIVATE_STREAM1:
 798                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 799                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 800                                 pes_start = 1;
 801                                 break;
 802
 803                         default:
 804                                 break;
 805                 }
 806
 807         while (c < length) {
 808                 memset(obuf, 0, TS_SIZE);
 809                 if (length - c >= (TS_SIZE - 4)){
 810                         l = write_ts_header2(pid, counter, pes_start,
 811                                              obuf, (TS_SIZE - 4));
 812                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 813                         c += TS_SIZE - l;
 814                 } else {
 815                         l = write_ts_header2(pid, counter, pes_start,
 816                                              obuf, length - c);
 817                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 818                         c = length;
 819                 }
 820                 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts);
 821                 pes_start = 0;
 822         }
 823 }
 824
 825
 826 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
 827 {
 828         struct ipack *ipack = &av7110->ipack[type];
 829
 830         if (buf[1] & TRANS_ERROR) {
 831                 av7110_ipack_reset(ipack);
 832                 return -1;
 833         }
 834
 835         if (!(buf[3] & PAYLOAD))
 836                 return -1;
 837
 838         if (buf[1] & PAY_START)
 839                 av7110_ipack_flush(ipack);
 840
 841         if (buf[3] & ADAPT_FIELD) {
 842                 len -= buf[4] + 1;
 843                 buf += buf[4] + 1;
 844                 if (!len)
 845                         return 0;
 846         }
 847
 848         av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
 849         return 0;
 850 }
 851
 852
 853 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 854 {
 855         struct dvb_demux *demux = feed->demux;
 856         struct av7110 *av7110 = (struct av7110 *) demux->priv;
 857
 858         dprintk(2, "av7110:%p, \n", av7110);
 859
 860         if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 861                 return 0;
 862
 863         switch (feed->pes_type) {
 864         case 0:
 865                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 866                         return -EINVAL;
 867                 break;
 868         case 1:
 869                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 870                         return -EINVAL;
 871                 break;
 872         default:
 873                 return -1;
 874         }
 875
 876         return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
 877 }
 878
 879
 880
 881 /******************************************************************************
 882  * Video MPEG decoder events
 883  ******************************************************************************/
 884 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 885 {
 886         struct dvb_video_events *events = &av7110->video_events;
 887         int wp;
 888
 889         spin_lock_bh(&events->lock);
 890
 891         wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 892         if (wp == events->eventr) {
 893                 events->overflow = 1;
 894                 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 895         }
 896
 897         //FIXME: timestamp?
 898         memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 899         events->eventw = wp;
 900
 901         spin_unlock_bh(&events->lock);
 902
 903         wake_up_interruptible(&events->wait_queue);
 904 }
 905
 906
 907 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 908 {
 909         struct dvb_video_events *events = &av7110->video_events;
 910
 911         if (events->overflow) {
 912                 events->overflow = 0;
 913                 return -EOVERFLOW;
 914         }
 915         if (events->eventw == events->eventr) {
 916                 int ret;
 917
 918                 if (flags & O_NONBLOCK)
 919                         return -EWOULDBLOCK;
 920
 921                 ret = wait_event_interruptible(events->wait_queue,
 922                                                events->eventw != events->eventr);
 923                 if (ret < 0)
 924                         return ret;
 925         }
 926
 927         spin_lock_bh(&events->lock);
 928
 929         memcpy(event, &events->events[events->eventr],
 930                sizeof(struct video_event));
 931         events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 932
 933         spin_unlock_bh(&events->lock);
 934
 935         return 0;
 936 }
 937
 938
 939 /******************************************************************************
 940  * DVB device file operations
 941  ******************************************************************************/
 942
 943 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
 944 {
 945         struct dvb_device *dvbdev = file->private_data;
 946         struct av7110 *av7110 = dvbdev->priv;
 947         unsigned int mask = 0;
 948
 949         dprintk(2, "av7110:%p, \n", av7110);
 950
 951         if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 952                 poll_wait(file, &av7110->avout.queue, wait);
 953
 954         poll_wait(file, &av7110->video_events.wait_queue, wait);
 955
 956         if (av7110->video_events.eventw != av7110->video_events.eventr)
 957                 mask = POLLPRI;
 958
 959         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 960                 if (av7110->playing) {
 961                         if (FREE_COND)
 962                                 mask |= (POLLOUT | POLLWRNORM);
 963                 } else {
 964                         /* if not playing: may play if asked for */
 965                         mask |= (POLLOUT | POLLWRNORM);
 966                 }
 967         }
 968
 969         return mask;
 970 }
 971
 972 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 973                                size_t count, loff_t *ppos)
 974 {
 975         struct dvb_device *dvbdev = file->private_data;
 976         struct av7110 *av7110 = dvbdev->priv;
 977         unsigned char c;
 978
 979         dprintk(2, "av7110:%p, \n", av7110);
 980
 981         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 982                 return -EPERM;
 983
 984         if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 985                 return -EPERM;
 986
 987         if (get_user(c, buf))
 988                 return -EFAULT;
 989         if (c == 0x47 && count % TS_SIZE == 0)
 990                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 991         else
 992                 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 993 }
 994
 995 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
 996 {
 997         struct dvb_device *dvbdev = file->private_data;
 998         struct av7110 *av7110 = dvbdev->priv;
 999         unsigned int mask = 0;
1000
1001         dprintk(2, "av7110:%p, \n", av7110);
1002
1003         poll_wait(file, &av7110->aout.queue, wait);
1004
1005         if (av7110->playing) {
1006                 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1007                         mask |= (POLLOUT | POLLWRNORM);
1008         } else /* if not playing: may play if asked for */
1009                 mask = (POLLOUT | POLLWRNORM);
1010
1011         return mask;
1012 }
1013
1014 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1015                                size_t count, loff_t *ppos)
1016 {
1017         struct dvb_device *dvbdev = file->private_data;
1018         struct av7110 *av7110 = dvbdev->priv;
1019         unsigned char c;
1020
1021         dprintk(2, "av7110:%p, \n", av7110);
1022
1023         if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1024                 printk(KERN_ERR "not audio source memory\n");
1025                 return -EPERM;
1026         }
1027
1028         if (get_user(c, buf))
1029                 return -EFAULT;
1030         if (c == 0x47 && count % TS_SIZE == 0)
1031                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1032         else
1033                 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1034 }
1035
1036 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1037
1038 #define MIN_IFRAME 400000
1039
1040 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1041 {
1042         unsigned i, n;
1043         int progressive = 0;
1044         int match = 0;
1045
1046         dprintk(2, "av7110:%p, \n", av7110);
1047
1048         if (len == 0)
1049                 return 0;
1050
1051         if (!(av7110->playing & RP_VIDEO)) {
1052                 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1053                         return -EBUSY;
1054         }
1055
1056         /* search in buf for instances of 00 00 01 b5 1? */
1057         for (i = 0; i < len; i++) {
1058                 unsigned char c;
1059                 if (get_user(c, buf + i))
1060                         return -EFAULT;
1061                 if (match == 5) {
1062                         progressive = c & 0x08;
1063                         match = 0;
1064                 }
1065                 if (c == 0x00) {
1066                         match = (match == 1 || match == 2) ? 2 : 1;
1067                         continue;
1068                 }
1069                 switch (match++) {
1070                 case 2: if (c == 0x01)
1071                                 continue;
1072                         break;
1073                 case 3: if (c == 0xb5)
1074                                 continue;
1075                         break;
1076                 case 4: if ((c & 0xf0) == 0x10)
1077                                 continue;
1078                         break;
1079                 }
1080                 match = 0;
1081         }
1082
1083         /* setting n always > 1, fixes problems when playing stillframes
1084            consisting of I- and P-Frames */
1085         n = MIN_IFRAME / len + 1;
1086
1087         /* FIXME: nonblock? */
1088         dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1089
1090         for (i = 0; i < n; i++)
1091                 dvb_play(av7110, buf, len, 0, 1);
1092
1093         av7110_ipack_flush(&av7110->ipack[1]);
1094
1095         if (progressive)
1096                 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1097         else
1098                 return 0;
1099 }
1100
1101
1102 static int dvb_video_ioctl(struct file *file,
1103                            unsigned int cmd, void *parg)
1104 {
1105         struct dvb_device *dvbdev = file->private_data;
1106         struct av7110 *av7110 = dvbdev->priv;
1107         unsigned long arg = (unsigned long) parg;
1108         int ret = 0;
1109
1110         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1111
1112         if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1113                 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1114                      cmd != VIDEO_GET_SIZE ) {
1115                         return -EPERM;
1116                 }
1117         }
1118
1119         if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1120                 return -ERESTARTSYS;
1121
1122         switch (cmd) {
1123         case VIDEO_STOP:
1124                 av7110->videostate.play_state = VIDEO_STOPPED;
1125                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1126                         ret = av7110_av_stop(av7110, RP_VIDEO);
1127                 else
1128                         ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1129                                av7110->videostate.video_blank ? 0 : 1);
1130                 if (!ret)
1131                         av7110->trickmode = TRICK_NONE;
1132                 break;
1133
1134         case VIDEO_PLAY:
1135                 av7110->trickmode = TRICK_NONE;
1136                 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1137                         av7110->videostate.play_state = VIDEO_PLAYING;
1138                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1139                         if (ret)
1140                                 break;
1141                 }
1142                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1143                         if (av7110->playing == RP_AV) {
1144                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1145                                 if (ret)
1146                                         break;
1147                                 av7110->playing &= ~RP_VIDEO;
1148                         }
1149                         ret = av7110_av_start_play(av7110, RP_VIDEO);
1150                 }
1151                 if (!ret)
1152                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1153                 if (!ret)
1154                         av7110->videostate.play_state = VIDEO_PLAYING;
1155                 break;
1156
1157         case VIDEO_FREEZE:
1158                 av7110->videostate.play_state = VIDEO_FREEZED;
1159                 if (av7110->playing & RP_VIDEO)
1160                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1161                 else
1162                         ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1163                 if (!ret)
1164                         av7110->trickmode = TRICK_FREEZE;
1165                 break;
1166
1167         case VIDEO_CONTINUE:
1168                 if (av7110->playing & RP_VIDEO)
1169                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1170                 if (!ret)
1171                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1172                 if (!ret) {
1173                         av7110->videostate.play_state = VIDEO_PLAYING;
1174                         av7110->trickmode = TRICK_NONE;
1175                 }
1176                 break;
1177
1178         case VIDEO_SELECT_SOURCE:
1179                 av7110->videostate.stream_source = (video_stream_source_t) arg;
1180                 break;
1181
1182         case VIDEO_SET_BLANK:
1183                 av7110->videostate.video_blank = (int) arg;
1184                 break;
1185
1186         case VIDEO_GET_STATUS:
1187                 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1188                 break;
1189
1190         case VIDEO_GET_EVENT:
1191                 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1192                 break;
1193
1194         case VIDEO_GET_SIZE:
1195                 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1196                 break;
1197
1198         case VIDEO_SET_DISPLAY_FORMAT:
1199         {
1200                 video_displayformat_t format = (video_displayformat_t) arg;
1201                 switch (format) {
1202                 case VIDEO_PAN_SCAN:
1203                         av7110->display_panscan = VID_PAN_SCAN_PREF;
1204                         break;
1205                 case VIDEO_LETTER_BOX:
1206                         av7110->display_panscan = VID_VC_AND_PS_PREF;
1207                         break;
1208                 case VIDEO_CENTER_CUT_OUT:
1209                         av7110->display_panscan = VID_CENTRE_CUT_PREF;
1210                         break;
1211                 default:
1212                         ret = -EINVAL;
1213                 }
1214                 if (ret < 0)
1215                         break;
1216                 av7110->videostate.display_format = format;
1217                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1218                                     1, av7110->display_panscan);
1219                 break;
1220         }
1221
1222         case VIDEO_SET_FORMAT:
1223                 if (arg > 1) {
1224                         ret = -EINVAL;
1225                         break;
1226                 }
1227                 av7110->display_ar = arg;
1228                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1229                                     1, (u16) arg);
1230                 break;
1231
1232         case VIDEO_STILLPICTURE:
1233         {
1234                 struct video_still_picture *pic =
1235                         (struct video_still_picture *) parg;
1236                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1237                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1238                 ret = play_iframe(av7110, pic->iFrame, pic->size,
1239                                   file->f_flags & O_NONBLOCK);
1240                 break;
1241         }
1242
1243         case VIDEO_FAST_FORWARD:
1244                 //note: arg is ignored by firmware
1245                 if (av7110->playing & RP_VIDEO)
1246                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1247                                             __Scan_I, 2, AV_PES, 0);
1248                 else
1249                         ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1250                 if (!ret) {
1251                         av7110->trickmode = TRICK_FAST;
1252                         av7110->videostate.play_state = VIDEO_PLAYING;
1253                 }
1254                 break;
1255
1256         case VIDEO_SLOWMOTION:
1257                 if (av7110->playing&RP_VIDEO) {
1258                         if (av7110->trickmode != TRICK_SLOW)
1259                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1260                         if (!ret)
1261                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1262                 } else {
1263                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1264                         if (!ret)
1265                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1266                         if (!ret)
1267                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1268                 }
1269                 if (!ret) {
1270                         av7110->trickmode = TRICK_SLOW;
1271                         av7110->videostate.play_state = VIDEO_PLAYING;
1272                 }
1273                 break;
1274
1275         case VIDEO_GET_CAPABILITIES:
1276                 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1277                         VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1278                 break;
1279
1280         case VIDEO_CLEAR_BUFFER:
1281                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1282                 av7110_ipack_reset(&av7110->ipack[1]);
1283                 if (av7110->playing == RP_AV) {
1284                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1285                                             __Play, 2, AV_PES, 0);
1286                         if (ret)
1287                                 break;
1288                         if (av7110->trickmode == TRICK_FAST)
1289                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1290                                                     __Scan_I, 2, AV_PES, 0);
1291                         if (av7110->trickmode == TRICK_SLOW) {
1292                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1293                                                     __Slow, 2, 0, 0);
1294                                 if (!ret)
1295                                         ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1296                         }
1297                         if (av7110->trickmode == TRICK_FREEZE)
1298                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1299                 }
1300                 break;
1301
1302         case VIDEO_SET_STREAMTYPE:
1303                 break;
1304
1305         default:
1306                 ret = -ENOIOCTLCMD;
1307                 break;
1308         }
1309
1310         mutex_unlock(&av7110->ioctl_mutex);
1311         return ret;
1312 }
1313
1314 static int dvb_audio_ioctl(struct file *file,
1315                            unsigned int cmd, void *parg)
1316 {
1317         struct dvb_device *dvbdev = file->private_data;
1318         struct av7110 *av7110 = dvbdev->priv;
1319         unsigned long arg = (unsigned long) parg;
1320         int ret = 0;
1321
1322         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1323
1324         if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1325             (cmd != AUDIO_GET_STATUS))
1326                 return -EPERM;
1327
1328         if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1329                 return -ERESTARTSYS;
1330
1331         switch (cmd) {
1332         case AUDIO_STOP:
1333                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1334                         ret = av7110_av_stop(av7110, RP_AUDIO);
1335                 else
1336                         ret = audcom(av7110, AUDIO_CMD_MUTE);
1337                 if (!ret)
1338                         av7110->audiostate.play_state = AUDIO_STOPPED;
1339                 break;
1340
1341         case AUDIO_PLAY:
1342                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1343                         ret = av7110_av_start_play(av7110, RP_AUDIO);
1344                 if (!ret)
1345                         ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1346                 if (!ret)
1347                         av7110->audiostate.play_state = AUDIO_PLAYING;
1348                 break;
1349
1350         case AUDIO_PAUSE:
1351                 ret = audcom(av7110, AUDIO_CMD_MUTE);
1352                 if (!ret)
1353                         av7110->audiostate.play_state = AUDIO_PAUSED;
1354                 break;
1355
1356         case AUDIO_CONTINUE:
1357                 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1358                         av7110->audiostate.play_state = AUDIO_PLAYING;
1359                         ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1360                 }
1361                 break;
1362
1363         case AUDIO_SELECT_SOURCE:
1364                 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1365                 break;
1366
1367         case AUDIO_SET_MUTE:
1368         {
1369                 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1370                 if (!ret)
1371                         av7110->audiostate.mute_state = (int) arg;
1372                 break;
1373         }
1374
1375         case AUDIO_SET_AV_SYNC:
1376                 av7110->audiostate.AV_sync_state = (int) arg;
1377                 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1378                 break;
1379
1380         case AUDIO_SET_BYPASS_MODE:
1381                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1382                         ret = -EINVAL;
1383                 av7110->audiostate.bypass_mode = (int)arg;
1384                 break;
1385
1386         case AUDIO_CHANNEL_SELECT:
1387                 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1388                 switch(av7110->audiostate.channel_select) {
1389                 case AUDIO_STEREO:
1390                         ret = audcom(av7110, AUDIO_CMD_STEREO);
1391                         if (!ret) {
1392                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1393                                         i2c_writereg(av7110, 0x20, 0x02, 0x49);
1394                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1395                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1396                         }
1397                         break;
1398                 case AUDIO_MONO_LEFT:
1399                         ret = audcom(av7110, AUDIO_CMD_MONO_L);
1400                         if (!ret) {
1401                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1402                                         i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1403                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1404                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1405                         }
1406                         break;
1407                 case AUDIO_MONO_RIGHT:
1408                         ret = audcom(av7110, AUDIO_CMD_MONO_R);
1409                         if (!ret) {
1410                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1411                                         i2c_writereg(av7110, 0x20, 0x02, 0x45);
1412                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1413                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1414                         }
1415                         break;
1416                 default:
1417                         ret = -EINVAL;
1418                         break;
1419                 }
1420                 break;
1421
1422         case AUDIO_GET_STATUS:
1423                 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1424                 break;
1425
1426         case AUDIO_GET_CAPABILITIES:
1427                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1428                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1429                 else
1430                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1431                                                 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1432                 break;
1433
1434         case AUDIO_CLEAR_BUFFER:
1435                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1436                 av7110_ipack_reset(&av7110->ipack[0]);
1437                 if (av7110->playing == RP_AV)
1438                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1439                                             __Play, 2, AV_PES, 0);
1440                 break;
1441
1442         case AUDIO_SET_ID:
1443                 break;
1444
1445         case AUDIO_SET_MIXER:
1446         {
1447                 struct audio_mixer *amix = (struct audio_mixer *)parg;
1448                 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1449                 break;
1450         }
1451
1452         case AUDIO_SET_STREAMTYPE:
1453                 break;
1454
1455         default:
1456                 ret = -ENOIOCTLCMD;
1457         }
1458
1459         mutex_unlock(&av7110->ioctl_mutex);
1460         return ret;
1461 }
1462
1463
1464 static int dvb_video_open(struct inode *inode, struct file *file)
1465 {
1466         struct dvb_device *dvbdev = file->private_data;
1467         struct av7110 *av7110 = dvbdev->priv;
1468         int err;
1469
1470         dprintk(2, "av7110:%p, \n", av7110);
1471
1472         if ((err = dvb_generic_open(inode, file)) < 0)
1473                 return err;
1474
1475         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1476                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1477                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1478                 av7110->video_blank = 1;
1479                 av7110->audiostate.AV_sync_state = 1;
1480                 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1481
1482                 /*  empty event queue */
1483                 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1484         }
1485
1486         return 0;
1487 }
1488
1489 static int dvb_video_release(struct inode *inode, struct file *file)
1490 {
1491         struct dvb_device *dvbdev = file->private_data;
1492         struct av7110 *av7110 = dvbdev->priv;
1493
1494         dprintk(2, "av7110:%p, \n", av7110);
1495
1496         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1497                 av7110_av_stop(av7110, RP_VIDEO);
1498         }
1499
1500         return dvb_generic_release(inode, file);
1501 }
1502
1503 static int dvb_audio_open(struct inode *inode, struct file *file)
1504 {
1505         struct dvb_device *dvbdev = file->private_data;
1506         struct av7110 *av7110 = dvbdev->priv;
1507         int err = dvb_generic_open(inode, file);
1508
1509         dprintk(2, "av7110:%p, \n", av7110);
1510
1511         if (err < 0)
1512                 return err;
1513         dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1514         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1515         return 0;
1516 }
1517
1518 static int dvb_audio_release(struct inode *inode, struct file *file)
1519 {
1520         struct dvb_device *dvbdev = file->private_data;
1521         struct av7110 *av7110 = dvbdev->priv;
1522
1523         dprintk(2, "av7110:%p, \n", av7110);
1524
1525         av7110_av_stop(av7110, RP_AUDIO);
1526         return dvb_generic_release(inode, file);
1527 }
1528
1529
1530
1531 /******************************************************************************
1532  * driver registration
1533  ******************************************************************************/
1534
1535 static const struct file_operations dvb_video_fops = {
1536         .owner          = THIS_MODULE,
1537         .write          = dvb_video_write,
1538         .unlocked_ioctl = dvb_generic_ioctl,
1539         .open           = dvb_video_open,
1540         .release        = dvb_video_release,
1541         .poll           = dvb_video_poll,
1542         .llseek         = noop_llseek,
1543 };
1544
1545 static struct dvb_device dvbdev_video = {
1546         .priv           = NULL,
1547         .users          = 6,
1548         .readers        = 5,    /* arbitrary */
1549         .writers        = 1,
1550         .fops           = &dvb_video_fops,
1551         .kernel_ioctl   = dvb_video_ioctl,
1552 };
1553
1554 static const struct file_operations dvb_audio_fops = {
1555         .owner          = THIS_MODULE,
1556         .write          = dvb_audio_write,
1557         .unlocked_ioctl = dvb_generic_ioctl,
1558         .open           = dvb_audio_open,
1559         .release        = dvb_audio_release,
1560         .poll           = dvb_audio_poll,
1561         .llseek         = noop_llseek,
1562 };
1563
1564 static struct dvb_device dvbdev_audio = {
1565         .priv           = NULL,
1566         .users          = 1,
1567         .writers        = 1,
1568         .fops           = &dvb_audio_fops,
1569         .kernel_ioctl   = dvb_audio_ioctl,
1570 };
1571
1572
1573 int av7110_av_register(struct av7110 *av7110)
1574 {
1575         av7110->audiostate.AV_sync_state = 0;
1576         av7110->audiostate.mute_state = 0;
1577         av7110->audiostate.play_state = AUDIO_STOPPED;
1578         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1579         av7110->audiostate.channel_select = AUDIO_STEREO;
1580         av7110->audiostate.bypass_mode = 0;
1581
1582         av7110->videostate.video_blank = 0;
1583         av7110->videostate.play_state = VIDEO_STOPPED;
1584         av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1585         av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1586         av7110->videostate.display_format = VIDEO_LETTER_BOX;
1587         av7110->display_ar = VIDEO_FORMAT_4_3;
1588         av7110->display_panscan = VID_VC_AND_PS_PREF;
1589
1590         init_waitqueue_head(&av7110->video_events.wait_queue);
1591         spin_lock_init(&av7110->video_events.lock);
1592         av7110->video_events.eventw = av7110->video_events.eventr = 0;
1593         av7110->video_events.overflow = 0;
1594         memset(&av7110->video_size, 0, sizeof (video_size_t));
1595
1596         dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1597                             &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1598
1599         dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1600                             &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1601
1602         return 0;
1603 }
1604
1605 void av7110_av_unregister(struct av7110 *av7110)
1606 {
1607         dvb_unregister_device(av7110->audio_dev);
1608         dvb_unregister_device(av7110->video_dev);
1609 }
1610
1611 int av7110_av_init(struct av7110 *av7110)
1612 {
1613         void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1614         int i, ret;
1615
1616         for (i = 0; i < 2; i++) {
1617                 struct ipack *ipack = av7110->ipack + i;
1618
1619                 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1620                 if (ret < 0) {
1621                         if (i)
1622                                 av7110_ipack_free(--ipack);
1623                         goto out;
1624                 }
1625                 ipack->data = av7110;
1626         }
1627
1628         dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1629         dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1630
1631         av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1632         av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1633 out:
1634         return ret;
1635 }
1636
1637 void av7110_av_exit(struct av7110 *av7110)
1638 {
1639         av7110_ipack_free(&av7110->ipack[0]);
1640         av7110_ipack_free(&av7110->ipack[1]);
1641 }