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