drivers/media/pci/ttpci/av7110_av.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * av7110_av.c: audio and video MPEG decoder stuff
   4  *
   5  * Copyright (C) 1999-2002 Ralph  Metzler
   6  *                       & Marcus Metzler for convergence integrated media GmbH
   7  *
   8  * originally based on code by:
   9  * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
  10  *
  11  * the project's page is at https://linuxtv.org
  12  */
  13
  14 #include <linux/types.h>
  15 #include <linux/kernel.h>
  16 #include <linux/string.h>
  17 #include <linux/delay.h>
  18 #include <linux/fs.h>
  19
  20 #include "av7110.h"
  21 #include "av7110_hw.h"
  22 #include "av7110_av.h"
  23 #include "av7110_ipack.h"
  24
  25 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
  26 #define PROG_STREAM_MAP  0xBC
  27 #define PRIVATE_STREAM1  0xBD
  28 #define PADDING_STREAM   0xBE
  29 #define PRIVATE_STREAM2  0xBF
  30 #define AUDIO_STREAM_S   0xC0
  31 #define AUDIO_STREAM_E   0xDF
  32 #define VIDEO_STREAM_S   0xE0
  33 #define VIDEO_STREAM_E   0xEF
  34 #define ECM_STREAM       0xF0
  35 #define EMM_STREAM       0xF1
  36 #define DSM_CC_STREAM    0xF2
  37 #define ISO13522_STREAM  0xF3
  38 #define PROG_STREAM_DIR  0xFF
  39
  40 #define PTS_DTS_FLAGS    0xC0
  41
  42 //pts_dts flags
  43 #define PTS_ONLY         0x80
  44 #define PTS_DTS          0xC0
  45 #define TS_SIZE          188
  46 #define TRANS_ERROR      0x80
  47 #define PAY_START        0x40
  48 #define TRANS_PRIO       0x20
  49 #define PID_MASK_HI      0x1F
  50 //flags
  51 #define TRANS_SCRMBL1    0x80
  52 #define TRANS_SCRMBL2    0x40
  53 #define ADAPT_FIELD      0x20
  54 #define PAYLOAD          0x10
  55 #define COUNT_MASK       0x0F
  56
  57 // adaptation flags
  58 #define DISCON_IND       0x80
  59 #define RAND_ACC_IND     0x40
  60 #define ES_PRI_IND       0x20
  61 #define PCR_FLAG         0x10
  62 #define OPCR_FLAG        0x08
  63 #define SPLICE_FLAG      0x04
  64 #define TRANS_PRIV       0x02
  65 #define ADAP_EXT_FLAG    0x01
  66
  67 // adaptation extension flags
  68 #define LTW_FLAG         0x80
  69 #define PIECE_RATE       0x40
  70 #define SEAM_SPLICE      0x20
  71
  72
  73 static void p_to_t(u8 const *buf, long int length, u16 pid,
  74                    u8 *counter, struct dvb_demux_feed *feed);
  75 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
  76
  77
  78 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
  79 {
  80         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
  81
  82         if (!(dvbdmxfeed->ts_type & TS_PACKET))
  83                 return 0;
  84         if (buf[3] == 0xe0)      // video PES do not have a length in TS
  85                 buf[4] = buf[5] = 0;
  86         if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
  87                 return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
  88                                          &dvbdmxfeed->feed.ts, NULL);
  89         else
  90                 return dvb_filter_pes2ts(p2t, buf, len, 1);
  91 }
  92
  93 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
  94 {
  95         struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
  96
  97         dvbdmxfeed->cb.ts(data, 188, NULL, 0,
  98                           &dvbdmxfeed->feed.ts, NULL);
  99         return 0;
 100 }
 101
 102 int av7110_av_start_record(struct av7110 *av7110, int av,
 103                            struct dvb_demux_feed *dvbdmxfeed)
 104 {
 105         int ret = 0;
 106         struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 107
 108         dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
 109
 110         if (av7110->playing || (av7110->rec_mode & av))
 111                 return -EBUSY;
 112         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 113         dvbdmx->recording = 1;
 114         av7110->rec_mode |= av;
 115
 116         switch (av7110->rec_mode) {
 117         case RP_AUDIO:
 118                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 119                                        dvbdmx->pesfilter[0]->pid,
 120                                        dvb_filter_pes2ts_cb,
 121                                        (void *) dvbdmx->pesfilter[0]);
 122                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 123                 break;
 124
 125         case RP_VIDEO:
 126                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 127                                        dvbdmx->pesfilter[1]->pid,
 128                                        dvb_filter_pes2ts_cb,
 129                                        (void *) dvbdmx->pesfilter[1]);
 130                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 131                 break;
 132
 133         case RP_AV:
 134                 dvb_filter_pes2ts_init(&av7110->p2t[0],
 135                                        dvbdmx->pesfilter[0]->pid,
 136                                        dvb_filter_pes2ts_cb,
 137                                        (void *) dvbdmx->pesfilter[0]);
 138                 dvb_filter_pes2ts_init(&av7110->p2t[1],
 139                                        dvbdmx->pesfilter[1]->pid,
 140                                        dvb_filter_pes2ts_cb,
 141                                        (void *) dvbdmx->pesfilter[1]);
 142                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
 143                 break;
 144         }
 145         return ret;
 146 }
 147
 148 int av7110_av_start_play(struct av7110 *av7110, int av)
 149 {
 150         int ret = 0;
 151         dprintk(2, "av7110:%p, \n", av7110);
 152
 153         if (av7110->rec_mode)
 154                 return -EBUSY;
 155         if (av7110->playing & av)
 156                 return -EBUSY;
 157
 158         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 159
 160         if (av7110->playing == RP_NONE) {
 161                 av7110_ipack_reset(&av7110->ipack[0]);
 162                 av7110_ipack_reset(&av7110->ipack[1]);
 163         }
 164
 165         av7110->playing |= av;
 166         switch (av7110->playing) {
 167         case RP_AUDIO:
 168                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 169                 break;
 170         case RP_VIDEO:
 171                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 172                 av7110->sinfo = 0;
 173                 break;
 174         case RP_AV:
 175                 av7110->sinfo = 0;
 176                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
 177                 break;
 178         }
 179         return ret;
 180 }
 181
 182 int av7110_av_stop(struct av7110 *av7110, int av)
 183 {
 184         int ret = 0;
 185         dprintk(2, "av7110:%p, \n", av7110);
 186
 187         if (!(av7110->playing & av) && !(av7110->rec_mode & av))
 188                 return 0;
 189         av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 190         if (av7110->playing) {
 191                 av7110->playing &= ~av;
 192                 switch (av7110->playing) {
 193                 case RP_AUDIO:
 194                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 195                         break;
 196                 case RP_VIDEO:
 197                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 198                         break;
 199                 case RP_NONE:
 200                         ret = av7110_set_vidmode(av7110, av7110->vidmode);
 201                         break;
 202                 }
 203         } else {
 204                 av7110->rec_mode &= ~av;
 205                 switch (av7110->rec_mode) {
 206                 case RP_AUDIO:
 207                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 208                         break;
 209                 case RP_VIDEO:
 210                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 211                         break;
 212                 case RP_NONE:
 213                         break;
 214                 }
 215         }
 216         return ret;
 217 }
 218
 219
 220 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
 221 {
 222         int len;
 223         u32 sync;
 224         u16 blen;
 225
 226         if (!dlen) {
 227                 wake_up(&buf->queue);
 228                 return -1;
 229         }
 230         while (1) {
 231                 len = dvb_ringbuffer_avail(buf);
 232                 if (len < 6) {
 233                         wake_up(&buf->queue);
 234                         return -1;
 235                 }
 236                 sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
 237                 sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
 238                 sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
 239                 sync |= DVB_RINGBUFFER_PEEK(buf, 3);
 240
 241                 if (((sync &~ 0x0f) == 0x000001e0) ||
 242                     ((sync &~ 0x1f) == 0x000001c0) ||
 243                     (sync == 0x000001bd))
 244                         break;
 245                 printk("resync\n");
 246                 DVB_RINGBUFFER_SKIP(buf, 1);
 247         }
 248         blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
 249         blen |= DVB_RINGBUFFER_PEEK(buf, 5);
 250         blen += 6;
 251         if (len < blen || blen > dlen) {
 252                 //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
 253                 wake_up(&buf->queue);
 254                 return -1;
 255         }
 256
 257         dvb_ringbuffer_read(buf, dest, (size_t) blen);
 258
 259         dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
 260                (unsigned long) buf->pread, (unsigned long) buf->pwrite);
 261         wake_up(&buf->queue);
 262         return blen;
 263 }
 264
 265
 266 int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
 267                       unsigned int volright)
 268 {
 269         unsigned int vol, val, balance = 0;
 270         int err;
 271
 272         dprintk(2, "av7110:%p, \n", av7110);
 273
 274         av7110->mixer.volume_left = volleft;
 275         av7110->mixer.volume_right = volright;
 276
 277         switch (av7110->adac_type) {
 278         case DVB_ADAC_TI:
 279                 volleft = (volleft * 256) / 1036;
 280                 volright = (volright * 256) / 1036;
 281                 if (volleft > 0x3f)
 282                         volleft = 0x3f;
 283                 if (volright > 0x3f)
 284                         volright = 0x3f;
 285                 if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 286                         return err;
 287                 return SendDAC(av7110, 4, volright);
 288
 289         case DVB_ADAC_CRYSTAL:
 290                 volleft = 127 - volleft / 2;
 291                 volright = 127 - volright / 2;
 292                 i2c_writereg(av7110, 0x20, 0x03, volleft);
 293                 i2c_writereg(av7110, 0x20, 0x04, volright);
 294                 return 0;
 295
 296         case DVB_ADAC_MSP34x0:
 297                 vol  = (volleft > volright) ? volleft : volright;
 298                 val     = (vol * 0x73 / 255) << 8;
 299                 if (vol > 0)
 300                        balance = ((volright - volleft) * 127) / vol;
 301                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 302                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 303                 msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 304                 return 0;
 305
 306         case DVB_ADAC_MSP34x5:
 307                 vol = (volleft > volright) ? volleft : volright;
 308                 val = (vol * 0x73 / 255) << 8;
 309                 if (vol > 0)
 310                         balance = ((volright - volleft) * 127) / vol;
 311                 msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 312                 msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 313                 return 0;
 314         }
 315
 316         return 0;
 317 }
 318
 319 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 320 {
 321         int ret;
 322         dprintk(2, "av7110:%p, \n", av7110);
 323
 324         ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 325
 326         if (!ret && !av7110->playing) {
 327                 ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 328                            av7110->pids[DMX_PES_AUDIO],
 329                            av7110->pids[DMX_PES_TELETEXT],
 330                            0, av7110->pids[DMX_PES_PCR]);
 331                 if (!ret)
 332                         ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 333         }
 334         return ret;
 335 }
 336
 337
 338 static enum av7110_video_mode sw2mode[16] = {
 339         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 340         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 341         AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 342         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 343         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 344         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 345         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 346         AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 347 };
 348
 349 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 350 {
 351         int i;
 352         int hsize, vsize;
 353         int sw;
 354         u8 *p;
 355         int ret = 0;
 356
 357         dprintk(2, "av7110:%p, \n", av7110);
 358
 359         if (av7110->sinfo)
 360                 return 0;
 361         for (i = 7; i < count - 10; i++) {
 362                 p = buf + i;
 363                 if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 364                         continue;
 365                 p += 4;
 366                 hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 367                 vsize = ((p[1] &0x0F) << 8) | (p[2]);
 368                 sw = (p[3] & 0x0F);
 369                 ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 370                 if (!ret) {
 371                         dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 372                         av7110->sinfo = 1;
 373                 }
 374                 break;
 375         }
 376         return ret;
 377 }
 378
 379
 380 /****************************************************************************
 381  * I/O buffer management and control
 382  ****************************************************************************/
 383
 384 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 385                                          const u8 *buf, unsigned long count)
 386 {
 387         unsigned long todo = count;
 388         int free;
 389
 390         while (todo > 0) {
 391                 if (dvb_ringbuffer_free(rbuf) < 2048) {
 392                         if (wait_event_interruptible(rbuf->queue,
 393                                                      (dvb_ringbuffer_free(rbuf) >= 2048)))
 394                                 return count - todo;
 395                 }
 396                 free = dvb_ringbuffer_free(rbuf);
 397                 if (free > todo)
 398                         free = todo;
 399                 dvb_ringbuffer_write(rbuf, buf, free);
 400                 todo -= free;
 401                 buf += free;
 402         }
 403
 404         return count - todo;
 405 }
 406
 407 static void play_video_cb(u8 *buf, int count, void *priv)
 408 {
 409         struct av7110 *av7110 = (struct av7110 *) priv;
 410         dprintk(2, "av7110:%p, \n", av7110);
 411
 412         if ((buf[3] & 0xe0) == 0xe0) {
 413                 get_video_format(av7110, buf, count);
 414                 aux_ring_buffer_write(&av7110->avout, buf, count);
 415         } else
 416                 aux_ring_buffer_write(&av7110->aout, buf, count);
 417 }
 418
 419 static void play_audio_cb(u8 *buf, int count, void *priv)
 420 {
 421         struct av7110 *av7110 = (struct av7110 *) priv;
 422         dprintk(2, "av7110:%p, \n", av7110);
 423
 424         aux_ring_buffer_write(&av7110->aout, buf, count);
 425 }
 426
 427
 428 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
 429
 430 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
 431                        unsigned long count, int nonblock, int type)
 432 {
 433         struct dvb_ringbuffer *rb;
 434         u8 *kb;
 435         unsigned long todo = count;
 436
 437         dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
 438
 439         rb = (type) ? &av7110->avout : &av7110->aout;
 440         kb = av7110->kbuf[type];
 441
 442         if (!kb)
 443                 return -ENOBUFS;
 444
 445         if (nonblock && !FREE_COND_TS)
 446                 return -EWOULDBLOCK;
 447
 448         while (todo >= TS_SIZE) {
 449                 if (!FREE_COND_TS) {
 450                         if (nonblock)
 451                                 return count - todo;
 452                         if (wait_event_interruptible(rb->queue, FREE_COND_TS))
 453                                 return count - todo;
 454                 }
 455                 if (copy_from_user(kb, buf, TS_SIZE))
 456                         return -EFAULT;
 457                 write_ts_to_decoder(av7110, type, kb, TS_SIZE);
 458                 todo -= TS_SIZE;
 459                 buf += TS_SIZE;
 460         }
 461
 462         return count - todo;
 463 }
 464
 465
 466 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 467                    dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 468
 469 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 470                         unsigned long count, int nonblock, int type)
 471 {
 472         unsigned long todo = count, n;
 473         dprintk(2, "av7110:%p, \n", av7110);
 474
 475         if (!av7110->kbuf[type])
 476                 return -ENOBUFS;
 477
 478         if (nonblock && !FREE_COND)
 479                 return -EWOULDBLOCK;
 480
 481         while (todo > 0) {
 482                 if (!FREE_COND) {
 483                         if (nonblock)
 484                                 return count - todo;
 485                         if (wait_event_interruptible(av7110->avout.queue,
 486                                                      FREE_COND))
 487                                 return count - todo;
 488                 }
 489                 n = todo;
 490                 if (n > IPACKS * 2)
 491                         n = IPACKS * 2;
 492                 if (copy_from_user(av7110->kbuf[type], buf, n))
 493                         return -EFAULT;
 494                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 495                                             &av7110->ipack[type]);
 496                 todo -= n;
 497                 buf += n;
 498         }
 499         return count - todo;
 500 }
 501
 502 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 503                         unsigned long count, int nonblock, int type)
 504 {
 505         unsigned long todo = count, n;
 506         dprintk(2, "av7110:%p, \n", av7110);
 507
 508         if (!av7110->kbuf[type])
 509                 return -ENOBUFS;
 510
 511         if (nonblock && !FREE_COND)
 512                 return -EWOULDBLOCK;
 513
 514         while (todo > 0) {
 515                 if (!FREE_COND) {
 516                         if (nonblock)
 517                                 return count - todo;
 518                         if (wait_event_interruptible(av7110->avout.queue,
 519                                                      FREE_COND))
 520                                 return count - todo;
 521                 }
 522                 n = todo;
 523                 if (n > IPACKS * 2)
 524                         n = IPACKS * 2;
 525                 av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 526                 todo -= n;
 527                 buf += n;
 528         }
 529         return count - todo;
 530 }
 531
 532 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 533                          unsigned long count, int nonblock, int type)
 534 {
 535         unsigned long todo = count, n;
 536         dprintk(2, "av7110:%p, \n", av7110);
 537
 538         if (!av7110->kbuf[type])
 539                 return -ENOBUFS;
 540         if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 541                 return -EWOULDBLOCK;
 542
 543         while (todo > 0) {
 544                 if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 545                         if (nonblock)
 546                                 return count - todo;
 547                         if (wait_event_interruptible(av7110->aout.queue,
 548                                         (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 549                                 return count-todo;
 550                 }
 551                 n = todo;
 552                 if (n > IPACKS * 2)
 553                         n = IPACKS * 2;
 554                 if (copy_from_user(av7110->kbuf[type], buf, n))
 555                         return -EFAULT;
 556                 av7110_ipack_instant_repack(av7110->kbuf[type], n,
 557                                             &av7110->ipack[type]);
 558                 todo -= n;
 559                 buf += n;
 560         }
 561         return count - todo;
 562 }
 563
 564 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 565 {
 566         memset(p->pes, 0, TS_SIZE);
 567         p->counter = 0;
 568         p->pos = 0;
 569         p->frags = 0;
 570         if (feed)
 571                 p->feed = feed;
 572 }
 573
 574 static void clear_p2t(struct av7110_p2t *p)
 575 {
 576         memset(p->pes, 0, TS_SIZE);
 577 //      p->counter = 0;
 578         p->pos = 0;
 579         p->frags = 0;
 580 }
 581
 582
 583 static int find_pes_header(u8 const *buf, long int length, int *frags)
 584 {
 585         int c = 0;
 586         int found = 0;
 587
 588         *frags = 0;
 589
 590         while (c < length - 3 && !found) {
 591                 if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 592                     buf[c + 2] == 0x01) {
 593                         switch ( buf[c + 3] ) {
 594                         case PROG_STREAM_MAP:
 595                         case PRIVATE_STREAM2:
 596                         case PROG_STREAM_DIR:
 597                         case ECM_STREAM     :
 598                         case EMM_STREAM     :
 599                         case PADDING_STREAM :
 600                         case DSM_CC_STREAM  :
 601                         case ISO13522_STREAM:
 602                         case PRIVATE_STREAM1:
 603                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 604                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 605                                 found = 1;
 606                                 break;
 607
 608                         default:
 609                                 c++;
 610                                 break;
 611                         }
 612                 } else
 613                         c++;
 614         }
 615         if (c == length - 3 && !found) {
 616                 if (buf[length - 1] == 0x00)
 617                         *frags = 1;
 618                 if (buf[length - 2] == 0x00 &&
 619                     buf[length - 1] == 0x00)
 620                         *frags = 2;
 621                 if (buf[length - 3] == 0x00 &&
 622                     buf[length - 2] == 0x00 &&
 623                     buf[length - 1] == 0x01)
 624                         *frags = 3;
 625                 return -1;
 626         }
 627
 628         return c;
 629 }
 630
 631 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 632 {
 633         int c, c2, l, add;
 634         int check, rest;
 635
 636         c = 0;
 637         c2 = 0;
 638         if (p->frags){
 639                 check = 0;
 640                 switch(p->frags) {
 641                 case 1:
 642                         if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 643                                 check = 1;
 644                                 c += 2;
 645                         }
 646                         break;
 647                 case 2:
 648                         if (buf[c] == 0x01) {
 649                                 check = 1;
 650                                 c++;
 651                         }
 652                         break;
 653                 case 3:
 654                         check = 1;
 655                 }
 656                 if (check) {
 657                         switch (buf[c]) {
 658                         case PROG_STREAM_MAP:
 659                         case PRIVATE_STREAM2:
 660                         case PROG_STREAM_DIR:
 661                         case ECM_STREAM     :
 662                         case EMM_STREAM     :
 663                         case PADDING_STREAM :
 664                         case DSM_CC_STREAM  :
 665                         case ISO13522_STREAM:
 666                         case PRIVATE_STREAM1:
 667                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 668                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 669                                 p->pes[0] = 0x00;
 670                                 p->pes[1] = 0x00;
 671                                 p->pes[2] = 0x01;
 672                                 p->pes[3] = buf[c];
 673                                 p->pos = 4;
 674                                 memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 675                                 c += (TS_SIZE - 4) - p->pos;
 676                                 p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 677                                 clear_p2t(p);
 678                                 break;
 679
 680                         default:
 681                                 c = 0;
 682                                 break;
 683                         }
 684                 }
 685                 p->frags = 0;
 686         }
 687
 688         if (p->pos) {
 689                 c2 = find_pes_header(buf + c, length - c, &p->frags);
 690                 if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 691                         l = c2+c;
 692                 else
 693                         l = (TS_SIZE - 4) - p->pos;
 694                 memcpy(p->pes + p->pos, buf, l);
 695                 c += l;
 696                 p->pos += l;
 697                 p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 698                 clear_p2t(p);
 699         }
 700
 701         add = 0;
 702         while (c < length) {
 703                 c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 704                 if (c2 >= 0) {
 705                         c2 += c + add;
 706                         if (c2 > c){
 707                                 p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 708                                 c = c2;
 709                                 clear_p2t(p);
 710                                 add = 0;
 711                         } else
 712                                 add = 1;
 713                 } else {
 714                         l = length - c;
 715                         rest = l % (TS_SIZE - 4);
 716                         l -= rest;
 717                         p_to_t(buf + c, l, pid, &p->counter, p->feed);
 718                         memcpy(p->pes, buf + c + l, rest);
 719                         p->pos = rest;
 720                         c = length;
 721                 }
 722         }
 723 }
 724
 725
 726 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 727 {
 728         int i;
 729         int c = 0;
 730         int fill;
 731         u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 732
 733         fill = (TS_SIZE - 4) - length;
 734         if (pes_start)
 735                 tshead[1] = 0x40;
 736         if (fill)
 737                 tshead[3] = 0x30;
 738         tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 739         tshead[2] |= (u8)(pid & 0x00FF);
 740         tshead[3] |= ((*counter)++ & 0x0F);
 741         memcpy(buf, tshead, 4);
 742         c += 4;
 743
 744         if (fill) {
 745                 buf[4] = fill - 1;
 746                 c++;
 747                 if (fill > 1) {
 748                         buf[5] = 0x00;
 749                         c++;
 750                 }
 751                 for (i = 6; i < fill + 4; i++) {
 752                         buf[i] = 0xFF;
 753                         c++;
 754                 }
 755         }
 756
 757         return c;
 758 }
 759
 760
 761 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 762                    struct dvb_demux_feed *feed)
 763 {
 764         int l, pes_start;
 765         u8 obuf[TS_SIZE];
 766         long c = 0;
 767
 768         pes_start = 0;
 769         if (length > 3 &&
 770              buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 771                 switch (buf[3]) {
 772                         case PROG_STREAM_MAP:
 773                         case PRIVATE_STREAM2:
 774                         case PROG_STREAM_DIR:
 775                         case ECM_STREAM     :
 776                         case EMM_STREAM     :
 777                         case PADDING_STREAM :
 778                         case DSM_CC_STREAM  :
 779                         case ISO13522_STREAM:
 780                         case PRIVATE_STREAM1:
 781                         case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 782                         case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 783                                 pes_start = 1;
 784                                 break;
 785
 786                         default:
 787                                 break;
 788                 }
 789
 790         while (c < length) {
 791                 memset(obuf, 0, TS_SIZE);
 792                 if (length - c >= (TS_SIZE - 4)){
 793                         l = write_ts_header2(pid, counter, pes_start,
 794                                              obuf, (TS_SIZE - 4));
 795                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 796                         c += TS_SIZE - l;
 797                 } else {
 798                         l = write_ts_header2(pid, counter, pes_start,
 799                                              obuf, length - c);
 800                         memcpy(obuf + l, buf + c, TS_SIZE - l);
 801                         c = length;
 802                 }
 803                 feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, NULL);
 804                 pes_start = 0;
 805         }
 806 }
 807
 808
 809 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
 810 {
 811         struct ipack *ipack = &av7110->ipack[type];
 812
 813         if (buf[1] & TRANS_ERROR) {
 814                 av7110_ipack_reset(ipack);
 815                 return -1;
 816         }
 817
 818         if (!(buf[3] & PAYLOAD))
 819                 return -1;
 820
 821         if (buf[1] & PAY_START)
 822                 av7110_ipack_flush(ipack);
 823
 824         if (buf[3] & ADAPT_FIELD) {
 825                 len -= buf[4] + 1;
 826                 buf += buf[4] + 1;
 827                 if (!len)
 828                         return 0;
 829         }
 830
 831         av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
 832         return 0;
 833 }
 834
 835
 836 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 837 {
 838         struct dvb_demux *demux = feed->demux;
 839         struct av7110 *av7110 = (struct av7110 *) demux->priv;
 840
 841         dprintk(2, "av7110:%p, \n", av7110);
 842
 843         if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 844                 return 0;
 845
 846         switch (feed->pes_type) {
 847         case 0:
 848                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 849                         return -EINVAL;
 850                 break;
 851         case 1:
 852                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 853                         return -EINVAL;
 854                 break;
 855         default:
 856                 return -1;
 857         }
 858
 859         return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
 860 }
 861
 862
 863
 864 /******************************************************************************
 865  * Video MPEG decoder events
 866  ******************************************************************************/
 867 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 868 {
 869         struct dvb_video_events *events = &av7110->video_events;
 870         int wp;
 871
 872         spin_lock_bh(&events->lock);
 873
 874         wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 875         if (wp == events->eventr) {
 876                 events->overflow = 1;
 877                 events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 878         }
 879
 880         //FIXME: timestamp?
 881         memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 882         events->eventw = wp;
 883
 884         spin_unlock_bh(&events->lock);
 885
 886         wake_up_interruptible(&events->wait_queue);
 887 }
 888
 889
 890 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 891 {
 892         struct dvb_video_events *events = &av7110->video_events;
 893
 894         if (events->overflow) {
 895                 events->overflow = 0;
 896                 return -EOVERFLOW;
 897         }
 898         if (events->eventw == events->eventr) {
 899                 int ret;
 900
 901                 if (flags & O_NONBLOCK)
 902                         return -EWOULDBLOCK;
 903
 904                 ret = wait_event_interruptible(events->wait_queue,
 905                                                events->eventw != events->eventr);
 906                 if (ret < 0)
 907                         return ret;
 908         }
 909
 910         spin_lock_bh(&events->lock);
 911
 912         memcpy(event, &events->events[events->eventr],
 913                sizeof(struct video_event));
 914         events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 915
 916         spin_unlock_bh(&events->lock);
 917
 918         return 0;
 919 }
 920
 921 /******************************************************************************
 922  * DVB device file operations
 923  ******************************************************************************/
 924
 925 static __poll_t dvb_video_poll(struct file *file, poll_table *wait)
 926 {
 927         struct dvb_device *dvbdev = file->private_data;
 928         struct av7110 *av7110 = dvbdev->priv;
 929         __poll_t mask = 0;
 930
 931         dprintk(2, "av7110:%p, \n", av7110);
 932
 933         if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 934                 poll_wait(file, &av7110->avout.queue, wait);
 935
 936         poll_wait(file, &av7110->video_events.wait_queue, wait);
 937
 938         if (av7110->video_events.eventw != av7110->video_events.eventr)
 939                 mask = EPOLLPRI;
 940
 941         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 942                 if (av7110->playing) {
 943                         if (FREE_COND)
 944                                 mask |= (EPOLLOUT | EPOLLWRNORM);
 945                 } else {
 946                         /* if not playing: may play if asked for */
 947                         mask |= (EPOLLOUT | EPOLLWRNORM);
 948                 }
 949         }
 950
 951         return mask;
 952 }
 953
 954 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 955                                size_t count, loff_t *ppos)
 956 {
 957         struct dvb_device *dvbdev = file->private_data;
 958         struct av7110 *av7110 = dvbdev->priv;
 959         unsigned char c;
 960
 961         dprintk(2, "av7110:%p, \n", av7110);
 962
 963         if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 964                 return -EPERM;
 965
 966         if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 967                 return -EPERM;
 968
 969         if (get_user(c, buf))
 970                 return -EFAULT;
 971         if (c == 0x47 && count % TS_SIZE == 0)
 972                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 973         else
 974                 return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 975 }
 976
 977 static __poll_t dvb_audio_poll(struct file *file, poll_table *wait)
 978 {
 979         struct dvb_device *dvbdev = file->private_data;
 980         struct av7110 *av7110 = dvbdev->priv;
 981         __poll_t mask = 0;
 982
 983         dprintk(2, "av7110:%p, \n", av7110);
 984
 985         poll_wait(file, &av7110->aout.queue, wait);
 986
 987         if (av7110->playing) {
 988                 if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 989                         mask |= (EPOLLOUT | EPOLLWRNORM);
 990         } else /* if not playing: may play if asked for */
 991                 mask = (EPOLLOUT | EPOLLWRNORM);
 992
 993         return mask;
 994 }
 995
 996 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
 997                                size_t count, loff_t *ppos)
 998 {
 999         struct dvb_device *dvbdev = file->private_data;
1000         struct av7110 *av7110 = dvbdev->priv;
1001         unsigned char c;
1002
1003         dprintk(2, "av7110:%p, \n", av7110);
1004
1005         if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1006                 printk(KERN_ERR "not audio source memory\n");
1007                 return -EPERM;
1008         }
1009
1010         if (get_user(c, buf))
1011                 return -EFAULT;
1012         if (c == 0x47 && count % TS_SIZE == 0)
1013                 return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1014         else
1015                 return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1016 }
1017
1018 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1019
1020 #define MIN_IFRAME 400000
1021
1022 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1023 {
1024         unsigned i, n;
1025         int progressive = 0;
1026         int match = 0;
1027
1028         dprintk(2, "av7110:%p, \n", av7110);
1029
1030         if (len == 0)
1031                 return 0;
1032
1033         if (!(av7110->playing & RP_VIDEO)) {
1034                 if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1035                         return -EBUSY;
1036         }
1037
1038         /* search in buf for instances of 00 00 01 b5 1? */
1039         for (i = 0; i < len; i++) {
1040                 unsigned char c;
1041                 if (get_user(c, buf + i))
1042                         return -EFAULT;
1043                 if (match == 5) {
1044                         progressive = c & 0x08;
1045                         match = 0;
1046                 }
1047                 if (c == 0x00) {
1048                         match = (match == 1 || match == 2) ? 2 : 1;
1049                         continue;
1050                 }
1051                 switch (match++) {
1052                 case 2: if (c == 0x01)
1053                                 continue;
1054                         break;
1055                 case 3: if (c == 0xb5)
1056                                 continue;
1057                         break;
1058                 case 4: if ((c & 0xf0) == 0x10)
1059                                 continue;
1060                         break;
1061                 }
1062                 match = 0;
1063         }
1064
1065         /* setting n always > 1, fixes problems when playing stillframes
1066            consisting of I- and P-Frames */
1067         n = MIN_IFRAME / len + 1;
1068
1069         /* FIXME: nonblock? */
1070         dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1071
1072         for (i = 0; i < n; i++)
1073                 dvb_play(av7110, buf, len, 0, 1);
1074
1075         av7110_ipack_flush(&av7110->ipack[1]);
1076
1077         if (progressive)
1078                 return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1079         else
1080                 return 0;
1081 }
1082
1083 #ifdef CONFIG_COMPAT
1084 struct compat_video_still_picture {
1085         compat_uptr_t iFrame;
1086         int32_t size;
1087 };
1088 #define VIDEO_STILLPICTURE32 _IOW('o', 30, struct compat_video_still_picture)
1089
1090 struct compat_video_event {
1091         __s32 type;
1092         /* unused, make sure to use atomic time for y2038 if it ever gets used */
1093         compat_long_t timestamp;
1094         union {
1095                 video_size_t size;
1096                 unsigned int frame_rate;        /* in frames per 1000sec */
1097                 unsigned char vsync_field;      /* unknown/odd/even/progressive */
1098         } u;
1099 };
1100 #define VIDEO_GET_EVENT32 _IOR('o', 28, struct compat_video_event)
1101
1102 static int dvb_compat_video_get_event(struct av7110 *av7110,
1103                                       struct compat_video_event *event, int flags)
1104 {
1105         struct video_event ev;
1106         int ret;
1107
1108         ret = dvb_video_get_event(av7110, &ev, flags);
1109
1110         *event = (struct compat_video_event) {
1111                 .type = ev.type,
1112                 .timestamp = ev.timestamp,
1113                 .u.size = ev.u.size,
1114         };
1115
1116         return ret;
1117 }
1118 #endif
1119
1120 static int dvb_video_ioctl(struct file *file,
1121                            unsigned int cmd, void *parg)
1122 {
1123         struct dvb_device *dvbdev = file->private_data;
1124         struct av7110 *av7110 = dvbdev->priv;
1125         unsigned long arg = (unsigned long) parg;
1126         int ret = 0;
1127
1128         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1129
1130         if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1131                 if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1132                      cmd != VIDEO_GET_SIZE ) {
1133                         return -EPERM;
1134                 }
1135         }
1136
1137         if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1138                 return -ERESTARTSYS;
1139
1140         switch (cmd) {
1141         case VIDEO_STOP:
1142                 av7110->videostate.play_state = VIDEO_STOPPED;
1143                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1144                         ret = av7110_av_stop(av7110, RP_VIDEO);
1145                 else
1146                         ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1147                                av7110->videostate.video_blank ? 0 : 1);
1148                 if (!ret)
1149                         av7110->trickmode = TRICK_NONE;
1150                 break;
1151
1152         case VIDEO_PLAY:
1153                 av7110->trickmode = TRICK_NONE;
1154                 if (av7110->videostate.play_state == VIDEO_FREEZED) {
1155                         av7110->videostate.play_state = VIDEO_PLAYING;
1156                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1157                         if (ret)
1158                                 break;
1159                 }
1160                 if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1161                         if (av7110->playing == RP_AV) {
1162                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1163                                 if (ret)
1164                                         break;
1165                                 av7110->playing &= ~RP_VIDEO;
1166                         }
1167                         ret = av7110_av_start_play(av7110, RP_VIDEO);
1168                 }
1169                 if (!ret)
1170                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1171                 if (!ret)
1172                         av7110->videostate.play_state = VIDEO_PLAYING;
1173                 break;
1174
1175         case VIDEO_FREEZE:
1176                 av7110->videostate.play_state = VIDEO_FREEZED;
1177                 if (av7110->playing & RP_VIDEO)
1178                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1179                 else
1180                         ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1181                 if (!ret)
1182                         av7110->trickmode = TRICK_FREEZE;
1183                 break;
1184
1185         case VIDEO_CONTINUE:
1186                 if (av7110->playing & RP_VIDEO)
1187                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1188                 if (!ret)
1189                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1190                 if (!ret) {
1191                         av7110->videostate.play_state = VIDEO_PLAYING;
1192                         av7110->trickmode = TRICK_NONE;
1193                 }
1194                 break;
1195
1196         case VIDEO_SELECT_SOURCE:
1197                 av7110->videostate.stream_source = (video_stream_source_t) arg;
1198                 break;
1199
1200         case VIDEO_SET_BLANK:
1201                 av7110->videostate.video_blank = (int) arg;
1202                 break;
1203
1204         case VIDEO_GET_STATUS:
1205                 memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1206                 break;
1207
1208 #ifdef CONFIG_COMPAT
1209         case VIDEO_GET_EVENT32:
1210                 ret = dvb_compat_video_get_event(av7110, parg, file->f_flags);
1211                 break;
1212 #endif
1213
1214         case VIDEO_GET_EVENT:
1215                 ret = dvb_video_get_event(av7110, parg, file->f_flags);
1216                 break;
1217
1218         case VIDEO_GET_SIZE:
1219                 memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1220                 break;
1221
1222         case VIDEO_SET_DISPLAY_FORMAT:
1223         {
1224                 video_displayformat_t format = (video_displayformat_t) arg;
1225                 switch (format) {
1226                 case VIDEO_PAN_SCAN:
1227                         av7110->display_panscan = VID_PAN_SCAN_PREF;
1228                         break;
1229                 case VIDEO_LETTER_BOX:
1230                         av7110->display_panscan = VID_VC_AND_PS_PREF;
1231                         break;
1232                 case VIDEO_CENTER_CUT_OUT:
1233                         av7110->display_panscan = VID_CENTRE_CUT_PREF;
1234                         break;
1235                 default:
1236                         ret = -EINVAL;
1237                 }
1238                 if (ret < 0)
1239                         break;
1240                 av7110->videostate.display_format = format;
1241                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1242                                     1, av7110->display_panscan);
1243                 break;
1244         }
1245
1246         case VIDEO_SET_FORMAT:
1247                 if (arg > 1) {
1248                         ret = -EINVAL;
1249                         break;
1250                 }
1251                 av7110->display_ar = arg;
1252                 ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1253                                     1, (u16) arg);
1254                 break;
1255
1256 #ifdef CONFIG_COMPAT
1257         case VIDEO_STILLPICTURE32:
1258         {
1259                 struct compat_video_still_picture *pic =
1260                         (struct compat_video_still_picture *) parg;
1261                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1262                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1263                 ret = play_iframe(av7110, compat_ptr(pic->iFrame),
1264                                   pic->size, file->f_flags & O_NONBLOCK);
1265                 break;
1266         }
1267 #endif
1268
1269         case VIDEO_STILLPICTURE:
1270         {
1271                 struct video_still_picture *pic =
1272                         (struct video_still_picture *) parg;
1273                 av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1274                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1275                 ret = play_iframe(av7110, pic->iFrame, pic->size,
1276                                   file->f_flags & O_NONBLOCK);
1277                 break;
1278         }
1279
1280         case VIDEO_FAST_FORWARD:
1281                 //note: arg is ignored by firmware
1282                 if (av7110->playing & RP_VIDEO)
1283                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1284                                             __Scan_I, 2, AV_PES, 0);
1285                 else
1286                         ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1287                 if (!ret) {
1288                         av7110->trickmode = TRICK_FAST;
1289                         av7110->videostate.play_state = VIDEO_PLAYING;
1290                 }
1291                 break;
1292
1293         case VIDEO_SLOWMOTION:
1294                 if (av7110->playing&RP_VIDEO) {
1295                         if (av7110->trickmode != TRICK_SLOW)
1296                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1297                         if (!ret)
1298                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1299                 } else {
1300                         ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1301                         if (!ret)
1302                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1303                         if (!ret)
1304                                 ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1305                 }
1306                 if (!ret) {
1307                         av7110->trickmode = TRICK_SLOW;
1308                         av7110->videostate.play_state = VIDEO_PLAYING;
1309                 }
1310                 break;
1311
1312         case VIDEO_GET_CAPABILITIES:
1313                 *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1314                         VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1315                 break;
1316
1317         case VIDEO_CLEAR_BUFFER:
1318                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1319                 av7110_ipack_reset(&av7110->ipack[1]);
1320                 if (av7110->playing == RP_AV) {
1321                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1322                                             __Play, 2, AV_PES, 0);
1323                         if (ret)
1324                                 break;
1325                         if (av7110->trickmode == TRICK_FAST)
1326                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1327                                                     __Scan_I, 2, AV_PES, 0);
1328                         if (av7110->trickmode == TRICK_SLOW) {
1329                                 ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1330                                                     __Slow, 2, 0, 0);
1331                                 if (!ret)
1332                                         ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1333                         }
1334                         if (av7110->trickmode == TRICK_FREEZE)
1335                                 ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1336                 }
1337                 break;
1338
1339         case VIDEO_SET_STREAMTYPE:
1340                 break;
1341
1342         default:
1343                 ret = -ENOIOCTLCMD;
1344                 break;
1345         }
1346
1347         mutex_unlock(&av7110->ioctl_mutex);
1348         return ret;
1349 }
1350
1351 static int dvb_audio_ioctl(struct file *file,
1352                            unsigned int cmd, void *parg)
1353 {
1354         struct dvb_device *dvbdev = file->private_data;
1355         struct av7110 *av7110 = dvbdev->priv;
1356         unsigned long arg = (unsigned long) parg;
1357         int ret = 0;
1358
1359         dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1360
1361         if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1362             (cmd != AUDIO_GET_STATUS))
1363                 return -EPERM;
1364
1365         if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1366                 return -ERESTARTSYS;
1367
1368         switch (cmd) {
1369         case AUDIO_STOP:
1370                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1371                         ret = av7110_av_stop(av7110, RP_AUDIO);
1372                 else
1373                         ret = audcom(av7110, AUDIO_CMD_MUTE);
1374                 if (!ret)
1375                         av7110->audiostate.play_state = AUDIO_STOPPED;
1376                 break;
1377
1378         case AUDIO_PLAY:
1379                 if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1380                         ret = av7110_av_start_play(av7110, RP_AUDIO);
1381                 if (!ret)
1382                         ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1383                 if (!ret)
1384                         av7110->audiostate.play_state = AUDIO_PLAYING;
1385                 break;
1386
1387         case AUDIO_PAUSE:
1388                 ret = audcom(av7110, AUDIO_CMD_MUTE);
1389                 if (!ret)
1390                         av7110->audiostate.play_state = AUDIO_PAUSED;
1391                 break;
1392
1393         case AUDIO_CONTINUE:
1394                 if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1395                         av7110->audiostate.play_state = AUDIO_PLAYING;
1396                         ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1397                 }
1398                 break;
1399
1400         case AUDIO_SELECT_SOURCE:
1401                 av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1402                 break;
1403
1404         case AUDIO_SET_MUTE:
1405         {
1406                 ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1407                 if (!ret)
1408                         av7110->audiostate.mute_state = (int) arg;
1409                 break;
1410         }
1411
1412         case AUDIO_SET_AV_SYNC:
1413                 av7110->audiostate.AV_sync_state = (int) arg;
1414                 ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1415                 break;
1416
1417         case AUDIO_SET_BYPASS_MODE:
1418                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1419                         ret = -EINVAL;
1420                 av7110->audiostate.bypass_mode = (int)arg;
1421                 break;
1422
1423         case AUDIO_CHANNEL_SELECT:
1424                 av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1425                 switch(av7110->audiostate.channel_select) {
1426                 case AUDIO_STEREO:
1427                         ret = audcom(av7110, AUDIO_CMD_STEREO);
1428                         if (!ret) {
1429                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1430                                         i2c_writereg(av7110, 0x20, 0x02, 0x49);
1431                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1432                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1433                         }
1434                         break;
1435                 case AUDIO_MONO_LEFT:
1436                         ret = audcom(av7110, AUDIO_CMD_MONO_L);
1437                         if (!ret) {
1438                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1439                                         i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1440                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1441                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1442                         }
1443                         break;
1444                 case AUDIO_MONO_RIGHT:
1445                         ret = audcom(av7110, AUDIO_CMD_MONO_R);
1446                         if (!ret) {
1447                                 if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1448                                         i2c_writereg(av7110, 0x20, 0x02, 0x45);
1449                                 else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1450                                         msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1451                         }
1452                         break;
1453                 default:
1454                         ret = -EINVAL;
1455                         break;
1456                 }
1457                 break;
1458
1459         case AUDIO_GET_STATUS:
1460                 memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1461                 break;
1462
1463         case AUDIO_GET_CAPABILITIES:
1464                 if (FW_VERSION(av7110->arm_app) < 0x2621)
1465                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1466                 else
1467                         *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1468                                                 AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1469                 break;
1470
1471         case AUDIO_CLEAR_BUFFER:
1472                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1473                 av7110_ipack_reset(&av7110->ipack[0]);
1474                 if (av7110->playing == RP_AV)
1475                         ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1476                                             __Play, 2, AV_PES, 0);
1477                 break;
1478
1479         case AUDIO_SET_ID:
1480                 break;
1481
1482         case AUDIO_SET_MIXER:
1483         {
1484                 struct audio_mixer *amix = (struct audio_mixer *)parg;
1485                 ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1486                 break;
1487         }
1488
1489         case AUDIO_SET_STREAMTYPE:
1490                 break;
1491
1492         default:
1493                 ret = -ENOIOCTLCMD;
1494         }
1495
1496         mutex_unlock(&av7110->ioctl_mutex);
1497         return ret;
1498 }
1499
1500
1501 static int dvb_video_open(struct inode *inode, struct file *file)
1502 {
1503         struct dvb_device *dvbdev = file->private_data;
1504         struct av7110 *av7110 = dvbdev->priv;
1505         int err;
1506
1507         dprintk(2, "av7110:%p, \n", av7110);
1508
1509         if ((err = dvb_generic_open(inode, file)) < 0)
1510                 return err;
1511
1512         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1513                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1514                 dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1515                 av7110->video_blank = 1;
1516                 av7110->audiostate.AV_sync_state = 1;
1517                 av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1518
1519                 /*  empty event queue */
1520                 av7110->video_events.eventr = av7110->video_events.eventw = 0;
1521         }
1522
1523         return 0;
1524 }
1525
1526 static int dvb_video_release(struct inode *inode, struct file *file)
1527 {
1528         struct dvb_device *dvbdev = file->private_data;
1529         struct av7110 *av7110 = dvbdev->priv;
1530
1531         dprintk(2, "av7110:%p, \n", av7110);
1532
1533         if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1534                 av7110_av_stop(av7110, RP_VIDEO);
1535         }
1536
1537         return dvb_generic_release(inode, file);
1538 }
1539
1540 static int dvb_audio_open(struct inode *inode, struct file *file)
1541 {
1542         struct dvb_device *dvbdev = file->private_data;
1543         struct av7110 *av7110 = dvbdev->priv;
1544         int err = dvb_generic_open(inode, file);
1545
1546         dprintk(2, "av7110:%p, \n", av7110);
1547
1548         if (err < 0)
1549                 return err;
1550         dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1551         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1552         return 0;
1553 }
1554
1555 static int dvb_audio_release(struct inode *inode, struct file *file)
1556 {
1557         struct dvb_device *dvbdev = file->private_data;
1558         struct av7110 *av7110 = dvbdev->priv;
1559
1560         dprintk(2, "av7110:%p, \n", av7110);
1561
1562         av7110_av_stop(av7110, RP_AUDIO);
1563         return dvb_generic_release(inode, file);
1564 }
1565
1566
1567
1568 /******************************************************************************
1569  * driver registration
1570  ******************************************************************************/
1571
1572 static const struct file_operations dvb_video_fops = {
1573         .owner          = THIS_MODULE,
1574         .write          = dvb_video_write,
1575         .unlocked_ioctl = dvb_generic_ioctl,
1576         .compat_ioctl   = dvb_generic_ioctl,
1577         .open           = dvb_video_open,
1578         .release        = dvb_video_release,
1579         .poll           = dvb_video_poll,
1580         .llseek         = noop_llseek,
1581 };
1582
1583 static struct dvb_device dvbdev_video = {
1584         .priv           = NULL,
1585         .users          = 6,
1586         .readers        = 5,    /* arbitrary */
1587         .writers        = 1,
1588         .fops           = &dvb_video_fops,
1589         .kernel_ioctl   = dvb_video_ioctl,
1590 };
1591
1592 static const struct file_operations dvb_audio_fops = {
1593         .owner          = THIS_MODULE,
1594         .write          = dvb_audio_write,
1595         .unlocked_ioctl = dvb_generic_ioctl,
1596         .compat_ioctl   = dvb_generic_ioctl,
1597         .open           = dvb_audio_open,
1598         .release        = dvb_audio_release,
1599         .poll           = dvb_audio_poll,
1600         .llseek         = noop_llseek,
1601 };
1602
1603 static struct dvb_device dvbdev_audio = {
1604         .priv           = NULL,
1605         .users          = 1,
1606         .writers        = 1,
1607         .fops           = &dvb_audio_fops,
1608         .kernel_ioctl   = dvb_audio_ioctl,
1609 };
1610
1611
1612 int av7110_av_register(struct av7110 *av7110)
1613 {
1614         av7110->audiostate.AV_sync_state = 0;
1615         av7110->audiostate.mute_state = 0;
1616         av7110->audiostate.play_state = AUDIO_STOPPED;
1617         av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1618         av7110->audiostate.channel_select = AUDIO_STEREO;
1619         av7110->audiostate.bypass_mode = 0;
1620
1621         av7110->videostate.video_blank = 0;
1622         av7110->videostate.play_state = VIDEO_STOPPED;
1623         av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1624         av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1625         av7110->videostate.display_format = VIDEO_LETTER_BOX;
1626         av7110->display_ar = VIDEO_FORMAT_4_3;
1627         av7110->display_panscan = VID_VC_AND_PS_PREF;
1628
1629         init_waitqueue_head(&av7110->video_events.wait_queue);
1630         spin_lock_init(&av7110->video_events.lock);
1631         av7110->video_events.eventw = av7110->video_events.eventr = 0;
1632         av7110->video_events.overflow = 0;
1633         memset(&av7110->video_size, 0, sizeof (video_size_t));
1634
1635         dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1636                             &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1637
1638         dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1639                             &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1640
1641         return 0;
1642 }
1643
1644 void av7110_av_unregister(struct av7110 *av7110)
1645 {
1646         dvb_unregister_device(av7110->audio_dev);
1647         dvb_unregister_device(av7110->video_dev);
1648 }
1649
1650 int av7110_av_init(struct av7110 *av7110)
1651 {
1652         void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1653         int i, ret;
1654
1655         for (i = 0; i < 2; i++) {
1656                 struct ipack *ipack = av7110->ipack + i;
1657
1658                 ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1659                 if (ret < 0) {
1660                         if (i)
1661                                 av7110_ipack_free(--ipack);
1662                         goto out;
1663                 }
1664                 ipack->data = av7110;
1665         }
1666
1667         dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1668         dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1669
1670         av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1671         av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1672 out:
1673         return ret;
1674 }
1675
1676 void av7110_av_exit(struct av7110 *av7110)
1677 {
1678         av7110_ipack_free(&av7110->ipack[0]);
1679         av7110_ipack_free(&av7110->ipack[1]);
1680 }