drivers/media/dvb/ttpci/av7110_av.c

   1 /*
   2  * av7110_av.c: audio and video MPEG decoder stuff
   3  *
   4  * Copyright (C) 1999-2002 Ralph  Metzler
   5  *                       & Marcus Metzler for convergence integrated media GmbH
   6  *
   7  * originally based on code by:
   8  * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  26  *
  27  *
  28  * the project's page is at http://www.linuxtv.org/dvb/
  29  */
  30
  31 #include <linux/types.h>
  32 #include <linux/kernel.h>
  33 #include <linux/string.h>
  34 #include <linux/delay.h>
  35 #include <linux/fs.h>
  36
  37 #include "av7110.h"
  38 #include "av7110_hw.h"
  39 #include "av7110_av.h"
  40 #include "av7110_ipack.h"
  41
  42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
  43 #define PROG_STREAM_MAP  0xBC
  44 #define PRIVATE_STREAM1  0xBD
  45 #define PADDING_STREAM   0xBE
  46 #define PRIVATE_STREAM2  0xBF
  47 #define AUDIO_STREAM_S   0xC0
  48 #define AUDIO_STREAM_E   0xDF
  49 #define VIDEO_STREAM_S   0xE0
  50 #define VIDEO_STREAM_E   0xEF
  51 #define ECM_STREAM       0xF0
  52 #define EMM_STREAM       0xF1
  53 #define DSM_CC_STREAM    0xF2
  54 #define ISO13522_STREAM  0xF3
  55 #define PROG_STREAM_DIR  0xFF
  56
  57 #define PTS_DTS_FLAGS    0xC0
  58
  59 //pts_dts flags
  60 #define PTS_ONLY         0x80
  61 #define PTS_DTS          0xC0
  62 #define TS_SIZE          188
  63 #define TRANS_ERROR      0x80
  64 #define PAY_START        0x40
  65 #define TRANS_PRIO       0x20
  66 #define PID_MASK_HI      0x1F
  67 //flags
  68 #define TRANS_SCRMBL1    0x80
  69 #define TRANS_SCRMBL2    0x40
  70 #define ADAPT_FIELD      0x20
  71 #define PAYLOAD          0x10
  72 #define COUNT_MASK       0x0F
  73
  74 // adaptation flags
  75 #define DISCON_IND       0x80
  76 #define RAND_ACC_IND     0x40
  77 #define ES_PRI_IND       0x20
  78 #define PCR_FLAG         0x10
  79 #define OPCR_FLAG        0x08
  80 #define SPLICE_FLAG      0x04
  81 #define TRANS_PRIV       0x02
  82 #define ADAP_EXT_FLAG    0x01
  83
  84 // adaptation extension flags
  85 #define LTW_FLAG         0x80
  86 #define PIECE_RATE       0x40
  87 #define SEAM_SPLICE      0x20
  88
  89
  90 static void p_to_t(u8 const *buf, long int length, u16 pid,
  91                    u8 *counter, struct dvb_demux_feed *feed);
  92
  93
  94 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
  95 {
  96         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
  97
  98         if (!(dvbdmxfeed->ts_type & TS_PACKET))
  99                 return 0;
 100         if (buf[3] == 0xe0)      // video PES do not have a length in TS
 101                 buf[4] = buf[5] = 0;
 102         if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
 103                 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
 104                                          &dvbdmxfeed->feed.ts, DMX_OK);
 105         else
 106                 return dvb_filter_pes2ts(p2t, buf, len, 1);
 107 }
 108
 109 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
 110 {
 111         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
 112
 113         dvbdmxfeed->cb.ts(data, 188, NULL, 0,
 114                           &dvbdmxfeed->feed.ts, DMX_OK);
 115         return 0;
 116 }
 117
 118 int av7110_av_start_record(struct av7110 *av7110, int av,
 119                            struct dvb_demux_feed *dvbdmxfeed)
 120 {
 121         int ret = 0;
 122         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 123
 124         dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
 125
 126         if (av7110->playing || (av7110->rec_mode & av))
 127                 return -EBUSY;
 128         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 129         dvbdmx->recording = 1;
 130         av7110->rec_mode |= av;
 131
 132         switch (av7110->rec_mode) {
 133         case RP_AUDIO:
 134                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 135                                        dvbdmx->pesfilter[0]->pid,
 136                                        dvb_filter_pes2ts_cb,
 137                                        (void *) dvbdmx->pesfilter[0]);
 138                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 139                 break;
 140
 141         case RP_VIDEO:
 142                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 143                                        dvbdmx->pesfilter[1]->pid,
 144                                        dvb_filter_pes2ts_cb,
 145                                        (void *) dvbdmx->pesfilter[1]);
 146                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 147                 break;
 148
 149         case RP_AV:
 150                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 151                                        dvbdmx->pesfilter[0]->pid,
 152                                        dvb_filter_pes2ts_cb,
 153                                        (void *) dvbdmx->pesfilter[0]);
 154                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 155                                        dvbdmx->pesfilter[1]->pid,
 156                                        dvb_filter_pes2ts_cb,
 157                                        (void *) dvbdmx->pesfilter[1]);
 158                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
 159                 break;
 160         }
 161         return ret;
 162 }
 163
 164 int av7110_av_start_play(struct av7110 *av7110, int av)
 165 {
 166         int ret = 0;
 167         dprintk(2, "av7110:%p, \n", av7110);
 168
 169         if (av7110->rec_mode)
 170                 return -EBUSY;
 171         if (av7110->playing & av)
 172                 return -EBUSY;
 173
 174         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 175
 176         if (av7110->playing == RP_NONE) {
 177                 av7110_ipack_reset(&av7110->ipack[0]);
 178                 av7110_ipack_reset(&av7110->ipack[1]);
 179         }
 180
 181         av7110->playing |= av;
 182         switch (av7110->playing) {
 183         case RP_AUDIO:
 184                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 185                 break;
 186         case RP_VIDEO:
 187                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 188                 av7110->sinfo = 0;
 189                 break;
 190         case RP_AV:
 191                 av7110->sinfo = 0;
 192                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
 193                 break;
 194         }
 195         if (!ret)
 196                 ret = av7110->playing;
 197         return ret;
 198 }
 199
 200 int av7110_av_stop(struct av7110 *av7110, int av)
 201 {
 202         int ret = 0;
 203         dprintk(2, "av7110:%p, \n", av7110);
 204
 205         if (!(av7110->playing & av) && !(av7110->rec_mode & av))
 206                 return 0;
 207         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 208         if (av7110->playing) {
 209                 av7110->playing &= ~av;
 210                 switch (av7110->playing) {
 211                 case RP_AUDIO:
 212                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 213                         break;
 214                 case RP_VIDEO:
 215                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 216                         break;
 217                 case RP_NONE:
 218                         ret = av7110_set_vidmode(av7110, av7110->vidmode);
 219                         break;
 220                 }
 221         } else {
 222                 av7110->rec_mode &= ~av;
 223                 switch (av7110->rec_mode) {
 224                 case RP_AUDIO:
 225                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 226                         break;
 227                 case RP_VIDEO:
 228                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 229                         break;
 230                 case RP_NONE:
 231                         break;
 232                 }
 233         }
 234         return ret;
 235 }
 236
 237
 238 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
 239 {
 240         int len;
 241         u32 sync;
 242         u16 blen;
 243
 244         if (!dlen) {
 245                 wake_up(&buf->queue);
 246                 return -1;
 247         }
 248         while (1) {
 249                 if ((len = dvb_ringbuffer_avail(buf)) < 6)
 250                         return -1;
 251                 sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
 252                 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
 253                 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
 254                 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
 255
 256                 if (((sync &~ 0x0f) == 0x000001e0) ||
 257                     ((sync &~ 0x1f) == 0x000001c0) ||
 258                     (sync == 0x000001bd))
 259                         break;
 260                 printk("resync\n");
 261                 DVB_RINGBUFFER_SKIP(buf, 1);
 262         }
 263         blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
 264         blen |= DVB_RINGBUFFER_PEEK(buf, 5);
 265         blen += 6;
 266         if (len < blen || blen > dlen) {
 267                 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
 268                 wake_up(&buf->queue);
 269                 return -1;
 270         }
 271
 272         dvb_ringbuffer_read(buf, dest, (size_t) blen);
 273
 274         dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
 275                (unsigned long) buf->pread, (unsigned long) buf->pwrite);
 276         wake_up(&buf->queue);
 277         return blen;
 278 }
 279
 280
 281 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
 282 {
 283         int err, vol, val, balance = 0;
 284
 285         dprintk(2, "av7110:%p, \n", av7110);
 286
 287         av7110->mixer.volume_left = volleft;
 288         av7110->mixer.volume_right = volright;
 289
 290         switch (av7110->adac_type) {
 291         case DVB_ADAC_TI:
 292                 volleft = (volleft * 256) / 1036;
 293                 volright = (volright * 256) / 1036;
 294                 if (volleft > 0x3f)
 295                         volleft = 0x3f;
 296                 if (volright > 0x3f)
 297                         volright = 0x3f;
 298                 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 299                         return err;
 300                 return SendDAC(av7110, 4, volright);
 301
 302         case DVB_ADAC_CRYSTAL:
 303                 volleft = 127 - volleft / 2;
 304                 volright = 127 - volright / 2;
 305                 i2c_writereg(av7110, 0x20, 0x03, volleft);
 306                 i2c_writereg(av7110, 0x20, 0x04, volright);
 307                 return 0;
 308
 309         case DVB_ADAC_MSP34x0:
 310                 vol  = (volleft > volright) ? volleft : volright;
 311                 val     = (vol * 0x73 / 255) << 8;
 312                 if (vol > 0)
 313                        balance = ((volright - volleft) * 127) / vol;
 314                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 315                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 316                 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 317                 return 0;
 318
 319         case DVB_ADAC_MSP34x5:
 320                 vol = (volleft > volright) ? volleft : volright;
 321                 val = (vol * 0x73 / 255) << 8;
 322                 if (vol > 0)
 323                         balance = ((volright - volleft) * 127) / vol;
 324                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 325                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 326                 return 0;
 327         }
 328
 329         return 0;
 330 }
 331
 332 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 333 {
 334         int ret;
 335         dprintk(2, "av7110:%p, \n", av7110);
 336
 337         ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 338
 339         if (!ret && !av7110->playing) {
 340                 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 341                            av7110->pids[DMX_PES_AUDIO],
 342                            av7110->pids[DMX_PES_TELETEXT],
 343                            0, av7110->pids[DMX_PES_PCR]);
 344                 if (!ret)
 345                         ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 346         }
 347         return ret;
 348 }
 349
 350
 351 static enum av7110_video_mode sw2mode[16] = {
 352         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 353         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 354         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 355         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 356         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 357         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 358         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 359         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 360 };
 361
 362 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 363 {
 364         int i;
 365         int hsize, vsize;
 366         int sw;
 367         u8 *p;
 368         int ret = 0;
 369
 370         dprintk(2, "av7110:%p, \n", av7110);
 371
 372         if (av7110->sinfo)
 373                 return 0;
 374         for (i = 7; i < count - 10; i++) {
 375                 p = buf + i;
 376                 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 377                         continue;
 378                 p += 4;
 379                 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 380                 vsize = ((p[1] &0x0F) << 8) | (p[2]);
 381                 sw = (p[3] & 0x0F);
 382                 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 383                 if (!ret) {
 384                         dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 385                         av7110->sinfo = 1;
 386                 }
 387                 break;
 388         }
 389         return ret;
 390 }
 391
 392
 393 /****************************************************************************
 394  * I/O buffer management and control
 395  ****************************************************************************/
 396
 397 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 398                                          const u8 *buf, unsigned long count)
 399 {
 400         unsigned long todo = count;
 401         int free;
 402
 403         while (todo > 0) {
 404                 if (dvb_ringbuffer_free(rbuf) < 2048) {
 405                         if (wait_event_interruptible(rbuf->queue,
 406                                                      (dvb_ringbuffer_free(rbuf) >= 2048)))
 407                                 return count - todo;
 408                 }
 409                 free = dvb_ringbuffer_free(rbuf);
 410                 if (free > todo)
 411                         free = todo;
 412                 dvb_ringbuffer_write(rbuf, buf, free);
 413                 todo -= free;
 414                 buf += free;
 415         }
 416
 417         return count - todo;
 418 }
 419
 420 static void play_video_cb(u8 *buf, int count, void *priv)
 421 {
 422         struct av7110 *av7110 = (struct av7110 *) priv;
 423         dprintk(2, "av7110:%p, \n", av7110);
 424
 425         if ((buf[3] & 0xe0) == 0xe0) {
 426                 get_video_format(av7110, buf, count);
 427                 aux_ring_buffer_write(&av7110->avout, buf, count);
 428         } else
 429                 aux_ring_buffer_write(&av7110->aout, buf, count);
 430 }
 431
 432 static void play_audio_cb(u8 *buf, int count, void *priv)
 433 {
 434         struct av7110 *av7110 = (struct av7110 *) priv;
 435         dprintk(2, "av7110:%p, \n", av7110);
 436
 437         aux_ring_buffer_write(&av7110->aout, buf, count);
 438 }
 439
 440 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 441                    dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 442
 443 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 444                         unsigned long count, int nonblock, int type)
 445 {
 446         unsigned long todo = count, n;
 447         dprintk(2, "av7110:%p, \n", av7110);
 448
 449         if (!av7110->kbuf[type])
 450                 return -ENOBUFS;
 451
 452         if (nonblock && !FREE_COND)
 453                 return -EWOULDBLOCK;
 454
 455         while (todo > 0) {
 456                 if (!FREE_COND) {
 457                         if (nonblock)
 458                                 return count - todo;
 459                         if (wait_event_interruptible(av7110->avout.queue,
 460                                                      FREE_COND))
 461                                 return count - todo;
 462                 }
 463                 n = todo;
 464                 if (n > IPACKS * 2)
 465                         n = IPACKS * 2;
 466                 if (copy_from_user(av7110->kbuf[type], buf, n))
 467                         return -EFAULT;
 468                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 469                                             &av7110->ipack[type]);
 470                 todo -= n;
 471                 buf += n;
 472         }
 473         return count - todo;
 474 }
 475
 476 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 477                         unsigned long count, int nonblock, int type)
 478 {
 479         unsigned long todo = count, n;
 480         dprintk(2, "av7110:%p, \n", av7110);
 481
 482         if (!av7110->kbuf[type])
 483                 return -ENOBUFS;
 484
 485         if (nonblock && !FREE_COND)
 486                 return -EWOULDBLOCK;
 487
 488         while (todo > 0) {
 489                 if (!FREE_COND) {
 490                         if (nonblock)
 491                                 return count - todo;
 492                         if (wait_event_interruptible(av7110->avout.queue,
 493                                                      FREE_COND))
 494                                 return count - todo;
 495                 }
 496                 n = todo;
 497                 if (n > IPACKS * 2)
 498                         n = IPACKS * 2;
 499                 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 500                 todo -= n;
 501                 buf += n;
 502         }
 503         return count - todo;
 504 }
 505
 506 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 507                          unsigned long count, int nonblock, int type)
 508 {
 509         unsigned long todo = count, n;
 510         dprintk(2, "av7110:%p, \n", av7110);
 511
 512         if (!av7110->kbuf[type])
 513                 return -ENOBUFS;
 514         if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 515                 return -EWOULDBLOCK;
 516
 517         while (todo > 0) {
 518                 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 519                         if (nonblock)
 520                                 return count - todo;
 521                         if (wait_event_interruptible(av7110->aout.queue,
 522                                         (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 523                                 return count-todo;
 524                 }
 525                 n = todo;
 526                 if (n > IPACKS * 2)
 527                         n = IPACKS * 2;
 528                 if (copy_from_user(av7110->kbuf[type], buf, n))
 529                         return -EFAULT;
 530                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 531                                             &av7110->ipack[type]);
 532                 todo -= n;
 533                 buf += n;
 534         }
 535         return count - todo;
 536 }
 537
 538 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 539 {
 540         memset(p->pes, 0, TS_SIZE);
 541         p->counter = 0;
 542         p->pos = 0;
 543         p->frags = 0;
 544         if (feed)
 545                 p->feed = feed;
 546 }
 547
 548 static void clear_p2t(struct av7110_p2t *p)
 549 {
 550         memset(p->pes, 0, TS_SIZE);
 551 //      p->counter = 0;
 552         p->pos = 0;
 553         p->frags = 0;
 554 }
 555
 556
 557 static int find_pes_header(u8 const *buf, long int length, int *frags)
 558 {
 559         int c = 0;
 560         int found = 0;
 561
 562         *frags = 0;
 563
 564         while (c < length - 3 && !found) {
 565                 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 566                     buf[c + 2] == 0x01) {
 567                         switch ( buf[c + 3] ) {
 568                         case PROG_STREAM_MAP:
 569                         case PRIVATE_STREAM2:
 570                         case PROG_STREAM_DIR:
 571                         case ECM_STREAM     :
 572                         case EMM_STREAM     :
 573                         case PADDING_STREAM :
 574                         case DSM_CC_STREAM  :
 575                         case ISO13522_STREAM:
 576                         case PRIVATE_STREAM1:
 577                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 578                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 579                                 found = 1;
 580                                 break;
 581
 582                         default:
 583                                 c++;
 584                                 break;
 585                         }
 586                 } else
 587                         c++;
 588         }
 589         if (c == length - 3 && !found) {
 590                 if (buf[length - 1] == 0x00)
 591                         *frags = 1;
 592                 if (buf[length - 2] == 0x00 &&
 593                     buf[length - 1] == 0x00)
 594                         *frags = 2;
 595                 if (buf[length - 3] == 0x00 &&
 596                     buf[length - 2] == 0x00 &&
 597                     buf[length - 1] == 0x01)
 598                         *frags = 3;
 599                 return -1;
 600         }
 601
 602         return c;
 603 }
 604
 605 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 606 {
 607         int c, c2, l, add;
 608         int check, rest;
 609
 610         c = 0;
 611         c2 = 0;
 612         if (p->frags){
 613                 check = 0;
 614                 switch(p->frags) {
 615                 case 1:
 616                         if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 617                                 check = 1;
 618                                 c += 2;
 619                         }
 620                         break;
 621                 case 2:
 622                         if (buf[c] == 0x01) {
 623                                 check = 1;
 624                                 c++;
 625                         }
 626                         break;
 627                 case 3:
 628                         check = 1;
 629                 }
 630                 if (check) {
 631                         switch (buf[c]) {
 632                         case PROG_STREAM_MAP:
 633                         case PRIVATE_STREAM2:
 634                         case PROG_STREAM_DIR:
 635                         case ECM_STREAM     :
 636                         case EMM_STREAM     :
 637                         case PADDING_STREAM :
 638                         case DSM_CC_STREAM  :
 639                         case ISO13522_STREAM:
 640                         case PRIVATE_STREAM1:
 641                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 642                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 643                                 p->pes[0] = 0x00;
 644                                 p->pes[1] = 0x00;
 645                                 p->pes[2] = 0x01;
 646                                 p->pes[3] = buf[c];
 647                                 p->pos = 4;
 648                                 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 649                                 c += (TS_SIZE - 4) - p->pos;
 650                                 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 651                                 clear_p2t(p);
 652                                 break;
 653
 654                         default:
 655                                 c = 0;
 656                                 break;
 657                         }
 658                 }
 659                 p->frags = 0;
 660         }
 661
 662         if (p->pos) {
 663                 c2 = find_pes_header(buf + c, length - c, &p->frags);
 664                 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 665                         l = c2+c;
 666                 else
 667                         l = (TS_SIZE - 4) - p->pos;
 668                 memcpy(p->pes + p->pos, buf, l);
 669                 c += l;
 670                 p->pos += l;
 671                 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 672                 clear_p2t(p);
 673         }
 674
 675         add = 0;
 676         while (c < length) {
 677                 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 678                 if (c2 >= 0) {
 679                         c2 += c + add;
 680                         if (c2 > c){
 681                                 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 682                                 c = c2;
 683                                 clear_p2t(p);
 684                                 add = 0;
 685                         } else
 686                                 add = 1;
 687                 } else {
 688                         l = length - c;
 689                         rest = l % (TS_SIZE - 4);
 690                         l -= rest;
 691                         p_to_t(buf + c, l, pid, &p->counter, p->feed);
 692                         memcpy(p->pes, buf + c + l, rest);
 693                         p->pos = rest;
 694                         c = length;
 695                 }
 696         }
 697 }
 698
 699
 700 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 701 {
 702         int i;
 703         int c = 0;
 704         int fill;
 705         u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 706
 707         fill = (TS_SIZE - 4) - length;
 708         if (pes_start)
 709                 tshead[1] = 0x40;
 710         if (fill)
 711                 tshead[3] = 0x30;
 712         tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 713         tshead[2] |= (u8)(pid & 0x00FF);
 714         tshead[3] |= ((*counter)++ & 0x0F);
 715         memcpy(buf, tshead, 4);
 716         c += 4;
 717
 718         if (fill) {
 719                 buf[4] = fill - 1;
 720                 c++;
 721                 if (fill > 1) {
 722                         buf[5] = 0x00;
 723                         c++;
 724                 }
 725                 for (i = 6; i < fill + 4; i++) {
 726                         buf[i] = 0xFF;
 727                         c++;
 728                 }
 729         }
 730
 731         return c;
 732 }
 733
 734
 735 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 736                    struct dvb_demux_feed *feed)
 737 {
 738         int l, pes_start;
 739         u8 obuf[TS_SIZE];
 740         long c = 0;
 741
 742         pes_start = 0;
 743         if (length > 3 &&
 744              buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 745                 switch (buf[3]) {
 746                         case PROG_STREAM_MAP:
 747                         case PRIVATE_STREAM2:
 748                         case PROG_STREAM_DIR:
 749                         case ECM_STREAM     :
 750                         case EMM_STREAM     :
 751                         case PADDING_STREAM :
 752                         case DSM_CC_STREAM  :
 753                         case ISO13522_STREAM:
 754                         case PRIVATE_STREAM1:
 755                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 756                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 757                                 pes_start = 1;
 758                                 break;
 759
 760                         default:
 761                                 break;
 762                 }
 763
 764         while (c < length) {
 765                 memset(obuf, 0, TS_SIZE);
 766                 if (length - c >= (TS_SIZE - 4)){
 767                         l = write_ts_header2(pid, counter, pes_start,
 768                                              obuf, (TS_SIZE - 4));
 769                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 770                         c += TS_SIZE - l;
 771                 } else {
 772                         l = write_ts_header2(pid, counter, pes_start,
 773                                              obuf, length - c);
 774                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 775                         c = length;
 776                 }
 777                 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
 778                 pes_start = 0;
 779         }
 780 }
 781
 782
 783 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 784 {
 785         struct dvb_demux *demux = feed->demux;
 786         struct av7110 *av7110 = (struct av7110 *) demux->priv;
 787         struct ipack *ipack = &av7110->ipack[feed->pes_type];
 788
 789         dprintk(2, "av7110:%p, \n", av7110);
 790
 791         if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 792                 return 0;
 793
 794         switch (feed->pes_type) {
 795         case 0:
 796                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 797                         return -EINVAL;
 798                 break;
 799         case 1:
 800                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 801                         return -EINVAL;
 802                 break;
 803         default:
 804                 return -1;
 805         }
 806
 807         if (!(buf[3] & 0x10)) /* no payload? */
 808                 return -1;
 809         if (buf[1] & 0x40)
 810                 av7110_ipack_flush(ipack);
 811
 812         if (buf[3] & 0x20) {  /* adaptation field? */
 813                 len -= buf[4] + 1;
 814                 buf += buf[4] + 1;
 815                 if (!len)
 816                         return 0;
 817         }
 818
 819         av7110_ipack_instant_repack(buf + 4, len - 4, &av7110->ipack[feed->pes_type]);
 820         return 0;
 821 }
 822
 823
 824
 825 /******************************************************************************
 826  * Video MPEG decoder events
 827  ******************************************************************************/
 828 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 829 {
 830         struct dvb_video_events *events = &av7110->video_events;
 831         int wp;
 832
 833         spin_lock_bh(&events->lock);
 834
 835         wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 836         if (wp == events->eventr) {
 837                 events->overflow = 1;
 838                 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 839         }
 840
 841         //FIXME: timestamp?
 842         memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 843         events->eventw = wp;
 844
 845         spin_unlock_bh(&events->lock);
 846
 847         wake_up_interruptible(&events->wait_queue);
 848 }
 849
 850
 851 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 852 {
 853         struct dvb_video_events *events = &av7110->video_events;
 854
 855         if (events->overflow) {
 856                 events->overflow = 0;
 857                 return -EOVERFLOW;
 858         }
 859         if (events->eventw == events->eventr) {
 860                 int ret;
 861
 862                 if (flags & O_NONBLOCK)
 863                         return -EWOULDBLOCK;
 864
 865                 ret = wait_event_interruptible(events->wait_queue,
 866                                                events->eventw != events->eventr);
 867                 if (ret < 0)
 868                         return ret;
 869         }
 870
 871         spin_lock_bh(&events->lock);
 872
 873         memcpy(event, &events->events[events->eventr],
 874                sizeof(struct video_event));
 875         events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 876
 877         spin_unlock_bh(&events->lock);
 878
 879         return 0;
 880 }
 881
 882
 883 /******************************************************************************
 884  * DVB device file operations
 885  ******************************************************************************/
 886
 887 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
 888 {
 889         struct dvb_device *dvbdev = file->private_data;
 890         struct av7110 *av7110 = dvbdev->priv;
 891         unsigned int mask = 0;
 892
 893         dprintk(2, "av7110:%p, \n", av7110);
 894
 895         if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 896                 poll_wait(file, &av7110->avout.queue, wait);
 897
 898         poll_wait(file, &av7110->video_events.wait_queue, wait);
 899
 900         if (av7110->video_events.eventw != av7110->video_events.eventr)
 901                 mask = POLLPRI;
 902
 903         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 904                 if (av7110->playing) {
 905                         if (FREE_COND)
 906                                 mask |= (POLLOUT | POLLWRNORM);
 907                         } else /* if not playing: may play if asked for */
 908                                 mask |= (POLLOUT | POLLWRNORM);
 909         }
 910
 911         return mask;
 912 }
 913
 914 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 915                                size_t count, loff_t *ppos)
 916 {
 917         struct dvb_device *dvbdev = file->private_data;
 918         struct av7110 *av7110 = dvbdev->priv;
 919
 920         dprintk(2, "av7110:%p, \n", av7110);
 921
 922         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 923                 return -EPERM;
 924
 925         if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 926                 return -EPERM;
 927
 928         return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 929 }
 930
 931 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
 932 {
 933         struct dvb_device *dvbdev = file->private_data;
 934         struct av7110 *av7110 = dvbdev->priv;
 935         unsigned int mask = 0;
 936
 937         dprintk(2, "av7110:%p, \n", av7110);
 938
 939         poll_wait(file, &av7110->aout.queue, wait);
 940
 941         if (av7110->playing) {
 942                 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 943                         mask |= (POLLOUT | POLLWRNORM);
 944         } else /* if not playing: may play if asked for */
 945                 mask = (POLLOUT | POLLWRNORM);
 946
 947         return mask;
 948 }
 949
 950 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
 951                                size_t count, loff_t *ppos)
 952 {
 953         struct dvb_device *dvbdev = file->private_data;
 954         struct av7110 *av7110 = dvbdev->priv;
 955
 956         dprintk(2, "av7110:%p, \n", av7110);
 957
 958         if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
 959                 printk(KERN_ERR "not audio source memory\n");
 960                 return -EPERM;
 961         }
 962         return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
 963 }
 964
 965 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
 966
 967 #define MIN_IFRAME 400000
 968
 969 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
 970 {
 971         unsigned i, n;
 972         int progressive = 0;
 973         int match = 0;
 974
 975         dprintk(2, "av7110:%p, \n", av7110);
 976
 977         if (!(av7110->playing & RP_VIDEO)) {
 978                 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
 979                         return -EBUSY;
 980         }
 981
 982         /* search in buf for instances of 00 00 01 b5 1? */
 983         for (i = 0; i < len; i++) {
 984                 unsigned char c;
 985                 if (get_user(c, buf + i))
 986                         return -EFAULT;
 987                 if (match == 5) {
 988                         progressive = c & 0x08;
 989                         match = 0;
 990                 }
 991                 if (c == 0x00) {
 992                         match = (match == 1 || match == 2) ? 2 : 1;
 993                         continue;
 994                 }
 995                 switch (match++) {
 996                 case 2: if (c == 0x01)
 997                                 continue;
 998                         break;
 999                 case 3: if (c == 0xb5)
1000                                 continue;
1001                         break;
1002                 case 4: if ((c & 0xf0) == 0x10)
1003                                 continue;
1004                         break;
1005                 }
1006                 match = 0;
1007         }
1008
1009         /* setting n always > 1, fixes problems when playing stillframes
1010            consisting of I- and P-Frames */
1011         n = MIN_IFRAME / len + 1;
1012
1013         /* FIXME: nonblock? */
1014         dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1015
1016         for (i = 0; i < n; i++)
1017                 dvb_play(av7110, buf, len, 0, 1);
1018
1019         av7110_ipack_flush(&av7110->ipack[1]);
1020
1021         if (progressive)
1022                 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1023         else
1024                 return 0;
1025 }
1026
1027
1028 static int dvb_video_ioctl(struct inode *inode, struct file *file,
1029                            unsigned int cmd, void *parg)
1030 {
1031         struct dvb_device *dvbdev = file->private_data;
1032         struct av7110 *av7110 = dvbdev->priv;
1033         unsigned long arg = (unsigned long) parg;
1034         int ret = 0;
1035
1036         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1037
1038         if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1039                 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1040                      cmd != VIDEO_GET_SIZE ) {
1041                         return -EPERM;
1042                 }
1043         }
1044
1045         switch (cmd) {
1046         case VIDEO_STOP:
1047                 av7110->videostate.play_state = VIDEO_STOPPED;
1048                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1049                         ret = av7110_av_stop(av7110, RP_VIDEO);
1050                 else
1051                         ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1052                                av7110->videostate.video_blank ? 0 : 1);
1053                 if (!ret)
1054                         av7110->trickmode = TRICK_NONE;
1055                 break;
1056
1057         case VIDEO_PLAY:
1058                 av7110->trickmode = TRICK_NONE;
1059                 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1060                         av7110->videostate.play_state = VIDEO_PLAYING;
1061                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1062                         if (ret)
1063                                 break;
1064                 }
1065
1066                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1067                         if (av7110->playing == RP_AV) {
1068                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1069                                 if (ret)
1070                                         break;
1071                                 av7110->playing &= ~RP_VIDEO;
1072                         }
1073                         ret = av7110_av_start_play(av7110, RP_VIDEO);
1074                 }
1075                 if (!ret)
1076                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1077                 if (!ret)
1078                         av7110->videostate.play_state = VIDEO_PLAYING;
1079                 break;
1080
1081         case VIDEO_FREEZE:
1082                 av7110->videostate.play_state = VIDEO_FREEZED;
1083                 if (av7110->playing & RP_VIDEO)
1084                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1085                 else
1086                         ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1087                 if (!ret)
1088                         av7110->trickmode = TRICK_FREEZE;
1089                 break;
1090
1091         case VIDEO_CONTINUE:
1092                 if (av7110->playing & RP_VIDEO)
1093                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1094                 if (!ret)
1095                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1096                 if (!ret) {
1097                         av7110->videostate.play_state = VIDEO_PLAYING;
1098                         av7110->trickmode = TRICK_NONE;
1099                 }
1100                 break;
1101
1102         case VIDEO_SELECT_SOURCE:
1103                 av7110->videostate.stream_source = (video_stream_source_t) arg;
1104                 break;
1105
1106         case VIDEO_SET_BLANK:
1107                 av7110->videostate.video_blank = (int) arg;
1108                 break;
1109
1110         case VIDEO_GET_STATUS:
1111                 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1112                 break;
1113
1114         case VIDEO_GET_EVENT:
1115                 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1116                 break;
1117
1118         case VIDEO_GET_SIZE:
1119                 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1120                 break;
1121
1122         case VIDEO_SET_DISPLAY_FORMAT:
1123         {
1124                 video_displayformat_t format = (video_displayformat_t) arg;
1125
1126                 switch (format) {
1127                 case VIDEO_PAN_SCAN:
1128                         av7110->display_panscan = VID_PAN_SCAN_PREF;
1129                         break;
1130
1131                 case VIDEO_LETTER_BOX:
1132                         av7110->display_panscan = VID_VC_AND_PS_PREF;
1133                         break;
1134
1135                 case VIDEO_CENTER_CUT_OUT:
1136                         av7110->display_panscan = VID_CENTRE_CUT_PREF;
1137                         break;
1138
1139                 default:
1140                         ret = -EINVAL;
1141                 }
1142                 if (ret < 0)
1143                         break;
1144                 av7110->videostate.display_format = format;
1145                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1146                                     1, av7110->display_panscan);
1147                 break;
1148         }
1149
1150         case VIDEO_SET_FORMAT:
1151                 if (arg > 1) {
1152                         ret = -EINVAL;
1153                         break;
1154                 }
1155                 av7110->display_ar = arg;
1156                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1157                                     1, (u16) arg);
1158                 break;
1159
1160         case VIDEO_STILLPICTURE:
1161         {
1162                 struct video_still_picture *pic =
1163                         (struct video_still_picture *) parg;
1164                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1165                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1166                 ret = play_iframe(av7110, pic->iFrame, pic->size,
1167                                   file->f_flags & O_NONBLOCK);
1168                 break;
1169         }
1170
1171         case VIDEO_FAST_FORWARD:
1172                 //note: arg is ignored by firmware
1173                 if (av7110->playing & RP_VIDEO)
1174                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1175                                             __Scan_I, 2, AV_PES, 0);
1176                 else
1177                         ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1178                 if (!ret) {
1179                         av7110->trickmode = TRICK_FAST;
1180                         av7110->videostate.play_state = VIDEO_PLAYING;
1181                 }
1182                 break;
1183
1184         case VIDEO_SLOWMOTION:
1185                 if (av7110->playing&RP_VIDEO) {
1186                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1187                         if (!ret)
1188                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1189                 } else {
1190                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1191                         if (!ret)
1192                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1193                         if (!ret)
1194                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1195                 }
1196                 if (!ret) {
1197                         av7110->trickmode = TRICK_SLOW;
1198                         av7110->videostate.play_state = VIDEO_PLAYING;
1199                 }
1200                 break;
1201
1202         case VIDEO_GET_CAPABILITIES:
1203                 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1204                         VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1205                 break;
1206
1207         case VIDEO_CLEAR_BUFFER:
1208                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1209                 av7110_ipack_reset(&av7110->ipack[1]);
1210
1211                 if (av7110->playing == RP_AV) {
1212                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1213                                             __Play, 2, AV_PES, 0);
1214                         if (ret)
1215                                 break;
1216                         if (av7110->trickmode == TRICK_FAST)
1217                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1218                                                     __Scan_I, 2, AV_PES, 0);
1219                         if (av7110->trickmode == TRICK_SLOW) {
1220                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1221                                                     __Slow, 2, 0, 0);
1222                                 if (!ret)
1223                                         ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1224                         }
1225                         if (av7110->trickmode == TRICK_FREEZE)
1226                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1227                 }
1228                 break;
1229
1230         case VIDEO_SET_STREAMTYPE:
1231
1232                 break;
1233
1234         default:
1235                 ret = -ENOIOCTLCMD;
1236                 break;
1237         }
1238         return ret;
1239 }
1240
1241 static int dvb_audio_ioctl(struct inode *inode, struct file *file,
1242                            unsigned int cmd, void *parg)
1243 {
1244         struct dvb_device *dvbdev = file->private_data;
1245         struct av7110 *av7110 = dvbdev->priv;
1246         unsigned long arg = (unsigned long) parg;
1247         int ret = 0;
1248
1249         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1250
1251         if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1252             (cmd != AUDIO_GET_STATUS))
1253                 return -EPERM;
1254
1255         switch (cmd) {
1256         case AUDIO_STOP:
1257                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1258                         ret = av7110_av_stop(av7110, RP_AUDIO);
1259                 else
1260                         ret = audcom(av7110, AUDIO_CMD_MUTE);
1261                 if (!ret)
1262                         av7110->audiostate.play_state = AUDIO_STOPPED;
1263                 break;
1264
1265         case AUDIO_PLAY:
1266                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1267                         ret = av7110_av_start_play(av7110, RP_AUDIO);
1268                 if (!ret)
1269                         ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1270                 if (!ret)
1271                         av7110->audiostate.play_state = AUDIO_PLAYING;
1272                 break;
1273
1274         case AUDIO_PAUSE:
1275                 ret = audcom(av7110, AUDIO_CMD_MUTE);
1276                 if (!ret)
1277                         av7110->audiostate.play_state = AUDIO_PAUSED;
1278                 break;
1279
1280         case AUDIO_CONTINUE:
1281                 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1282                         av7110->audiostate.play_state = AUDIO_PLAYING;
1283                         ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1284                 }
1285                 break;
1286
1287         case AUDIO_SELECT_SOURCE:
1288                 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1289                 break;
1290
1291         case AUDIO_SET_MUTE:
1292         {
1293                 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1294                 if (!ret)
1295                         av7110->audiostate.mute_state = (int) arg;
1296                 break;
1297         }
1298
1299         case AUDIO_SET_AV_SYNC:
1300                 av7110->audiostate.AV_sync_state = (int) arg;
1301                 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1302                 break;
1303
1304         case AUDIO_SET_BYPASS_MODE:
1305                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1306                         ret = -EINVAL;
1307                 av7110->audiostate.bypass_mode = (int)arg;
1308                 break;
1309
1310         case AUDIO_CHANNEL_SELECT:
1311                 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1312
1313                 switch(av7110->audiostate.channel_select) {
1314                 case AUDIO_STEREO:
1315                         ret = audcom(av7110, AUDIO_CMD_STEREO);
1316                         if (!ret) {
1317                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1318                                         i2c_writereg(av7110, 0x20, 0x02, 0x49);
1319                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1320                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1321                         }
1322                         break;
1323
1324                 case AUDIO_MONO_LEFT:
1325                         ret = audcom(av7110, AUDIO_CMD_MONO_L);
1326                         if (!ret) {
1327                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1328                                         i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1329                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1330                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1331                         }
1332                         break;
1333
1334                 case AUDIO_MONO_RIGHT:
1335                         ret = audcom(av7110, AUDIO_CMD_MONO_R);
1336                         if (!ret) {
1337                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1338                                         i2c_writereg(av7110, 0x20, 0x02, 0x45);
1339                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1340                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1341                         }
1342                         break;
1343
1344                 default:
1345                         ret = -EINVAL;
1346                         break;
1347                 }
1348                 break;
1349
1350         case AUDIO_GET_STATUS:
1351                 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1352                 break;
1353
1354         case AUDIO_GET_CAPABILITIES:
1355                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1356                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1357                 else
1358                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1359                                                 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1360                 break;
1361
1362         case AUDIO_CLEAR_BUFFER:
1363                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1364                 av7110_ipack_reset(&av7110->ipack[0]);
1365                 if (av7110->playing == RP_AV)
1366                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1367                                             __Play, 2, AV_PES, 0);
1368                 break;
1369         case AUDIO_SET_ID:
1370
1371                 break;
1372         case AUDIO_SET_MIXER:
1373         {
1374                 struct audio_mixer *amix = (struct audio_mixer *)parg;
1375
1376                 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1377                 break;
1378         }
1379         case AUDIO_SET_STREAMTYPE:
1380                 break;
1381         default:
1382                 ret = -ENOIOCTLCMD;
1383         }
1384         return ret;
1385 }
1386
1387
1388 static int dvb_video_open(struct inode *inode, struct file *file)
1389 {
1390         struct dvb_device *dvbdev = file->private_data;
1391         struct av7110 *av7110 = dvbdev->priv;
1392         int err;
1393
1394         dprintk(2, "av7110:%p, \n", av7110);
1395
1396         if ((err = dvb_generic_open(inode, file)) < 0)
1397                 return err;
1398
1399         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1400                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1401                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1402                 av7110->video_blank = 1;
1403                 av7110->audiostate.AV_sync_state = 1;
1404                 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1405
1406                 /*  empty event queue */
1407                 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1408         }
1409
1410         return 0;
1411 }
1412
1413 static int dvb_video_release(struct inode *inode, struct file *file)
1414 {
1415         struct dvb_device *dvbdev = file->private_data;
1416         struct av7110 *av7110 = dvbdev->priv;
1417
1418         dprintk(2, "av7110:%p, \n", av7110);
1419
1420         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1421                 av7110_av_stop(av7110, RP_VIDEO);
1422         }
1423
1424         return dvb_generic_release(inode, file);
1425 }
1426
1427 static int dvb_audio_open(struct inode *inode, struct file *file)
1428 {
1429         struct dvb_device *dvbdev = file->private_data;
1430         struct av7110 *av7110 = dvbdev->priv;
1431         int err = dvb_generic_open(inode, file);
1432
1433         dprintk(2, "av7110:%p, \n", av7110);
1434
1435         if (err < 0)
1436                 return err;
1437         dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1438         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1439         return 0;
1440 }
1441
1442 static int dvb_audio_release(struct inode *inode, struct file *file)
1443 {
1444         struct dvb_device *dvbdev = file->private_data;
1445         struct av7110 *av7110 = dvbdev->priv;
1446
1447         dprintk(2, "av7110:%p, \n", av7110);
1448
1449         av7110_av_stop(av7110, RP_AUDIO);
1450         return dvb_generic_release(inode, file);
1451 }
1452
1453
1454
1455 /******************************************************************************
1456  * driver registration
1457  ******************************************************************************/
1458
1459 static const struct file_operations dvb_video_fops = {
1460         .owner          = THIS_MODULE,
1461         .write          = dvb_video_write,
1462         .ioctl          = dvb_generic_ioctl,
1463         .open           = dvb_video_open,
1464         .release        = dvb_video_release,
1465         .poll           = dvb_video_poll,
1466 };
1467
1468 static struct dvb_device dvbdev_video = {
1469         .priv           = NULL,
1470         .users          = 6,
1471         .readers        = 5,    /* arbitrary */
1472         .writers        = 1,
1473         .fops           = &dvb_video_fops,
1474         .kernel_ioctl   = dvb_video_ioctl,
1475 };
1476
1477 static const struct file_operations dvb_audio_fops = {
1478         .owner          = THIS_MODULE,
1479         .write          = dvb_audio_write,
1480         .ioctl          = dvb_generic_ioctl,
1481         .open           = dvb_audio_open,
1482         .release        = dvb_audio_release,
1483         .poll           = dvb_audio_poll,
1484 };
1485
1486 static struct dvb_device dvbdev_audio = {
1487         .priv           = NULL,
1488         .users          = 1,
1489         .writers        = 1,
1490         .fops           = &dvb_audio_fops,
1491         .kernel_ioctl   = dvb_audio_ioctl,
1492 };
1493
1494
1495 int av7110_av_register(struct av7110 *av7110)
1496 {
1497         av7110->audiostate.AV_sync_state = 0;
1498         av7110->audiostate.mute_state = 0;
1499         av7110->audiostate.play_state = AUDIO_STOPPED;
1500         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1501         av7110->audiostate.channel_select = AUDIO_STEREO;
1502         av7110->audiostate.bypass_mode = 0;
1503
1504         av7110->videostate.video_blank = 0;
1505         av7110->videostate.play_state = VIDEO_STOPPED;
1506         av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1507         av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1508         av7110->videostate.display_format = VIDEO_LETTER_BOX;
1509         av7110->display_ar = VIDEO_FORMAT_4_3;
1510         av7110->display_panscan = VID_VC_AND_PS_PREF;
1511
1512         init_waitqueue_head(&av7110->video_events.wait_queue);
1513         spin_lock_init(&av7110->video_events.lock);
1514         av7110->video_events.eventw = av7110->video_events.eventr = 0;
1515         av7110->video_events.overflow = 0;
1516         memset(&av7110->video_size, 0, sizeof (video_size_t));
1517
1518         dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1519                             &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1520
1521         dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1522                             &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1523
1524         return 0;
1525 }
1526
1527 void av7110_av_unregister(struct av7110 *av7110)
1528 {
1529         dvb_unregister_device(av7110->audio_dev);
1530         dvb_unregister_device(av7110->video_dev);
1531 }
1532
1533 int av7110_av_init(struct av7110 *av7110)
1534 {
1535         void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1536         int i, ret;
1537
1538         for (i = 0; i < 2; i++) {
1539                 struct ipack *ipack = av7110->ipack + i;
1540
1541                 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1542                 if (ret < 0) {
1543                         if (i)
1544                                 av7110_ipack_free(--ipack);
1545                         goto out;
1546                 }
1547                 ipack->data = av7110;
1548         }
1549
1550         dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1551         dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1552
1553         av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1554         av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1555 out:
1556         return ret;
1557 }
1558
1559 void av7110_av_exit(struct av7110 *av7110)
1560 {
1561         av7110_ipack_free(&av7110->ipack[0]);
1562         av7110_ipack_free(&av7110->ipack[1]);
1563 }