linux/drivers/staging/media/av7110/av7110_av.c
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   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/ethtool.h>
  15#include <linux/types.h>
  16#include <linux/kernel.h>
  17#include <linux/string.h>
  18#include <linux/delay.h>
  19#include <linux/fs.h>
  20
  21#include "av7110.h"
  22#include "av7110_hw.h"
  23#include "av7110_av.h"
  24#include "av7110_ipack.h"
  25
  26/* MPEG-2 (ISO 13818 / H.222.0) stream types */
  27#define PROG_STREAM_MAP  0xBC
  28#define PRIVATE_STREAM1  0xBD
  29#define PADDING_STREAM   0xBE
  30#define PRIVATE_STREAM2  0xBF
  31#define AUDIO_STREAM_S   0xC0
  32#define AUDIO_STREAM_E   0xDF
  33#define VIDEO_STREAM_S   0xE0
  34#define VIDEO_STREAM_E   0xEF
  35#define ECM_STREAM       0xF0
  36#define EMM_STREAM       0xF1
  37#define DSM_CC_STREAM    0xF2
  38#define ISO13522_STREAM  0xF3
  39#define PROG_STREAM_DIR  0xFF
  40
  41#define PTS_DTS_FLAGS    0xC0
  42
  43//pts_dts flags
  44#define PTS_ONLY         0x80
  45#define PTS_DTS          0xC0
  46#define TS_SIZE          188
  47#define TRANS_ERROR      0x80
  48#define PAY_START        0x40
  49#define TRANS_PRIO       0x20
  50#define PID_MASK_HI      0x1F
  51//flags
  52#define TRANS_SCRMBL1    0x80
  53#define TRANS_SCRMBL2    0x40
  54#define ADAPT_FIELD      0x20
  55#define PAYLOAD          0x10
  56#define COUNT_MASK       0x0F
  57
  58// adaptation flags
  59#define DISCON_IND       0x80
  60#define RAND_ACC_IND     0x40
  61#define ES_PRI_IND       0x20
  62#define PCR_FLAG         0x10
  63#define OPCR_FLAG        0x08
  64#define SPLICE_FLAG      0x04
  65#define TRANS_PRIV       0x02
  66#define ADAP_EXT_FLAG    0x01
  67
  68// adaptation extension flags
  69#define LTW_FLAG         0x80
  70#define PIECE_RATE       0x40
  71#define SEAM_SPLICE      0x20
  72
  73
  74static void p_to_t(u8 const *buf, long int length, u16 pid,
  75                   u8 *counter, struct dvb_demux_feed *feed);
  76static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
  77
  78
  79int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
  80{
  81        struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
  82
  83        if (!(dvbdmxfeed->ts_type & TS_PACKET))
  84                return 0;
  85        if (buf[3] == 0xe0)      // video PES do not have a length in TS
  86                buf[4] = buf[5] = 0;
  87        if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
  88                return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
  89                                         &dvbdmxfeed->feed.ts, NULL);
  90        else
  91                return dvb_filter_pes2ts(p2t, buf, len, 1);
  92}
  93
  94static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
  95{
  96        struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
  97
  98        dvbdmxfeed->cb.ts(data, 188, NULL, 0,
  99                          &dvbdmxfeed->feed.ts, NULL);
 100        return 0;
 101}
 102
 103int av7110_av_start_record(struct av7110 *av7110, int av,
 104                           struct dvb_demux_feed *dvbdmxfeed)
 105{
 106        int ret = 0;
 107        struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
 108
 109        dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
 110
 111        if (av7110->playing || (av7110->rec_mode & av))
 112                return -EBUSY;
 113        av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 114        dvbdmx->recording = 1;
 115        av7110->rec_mode |= av;
 116
 117        switch (av7110->rec_mode) {
 118        case RP_AUDIO:
 119                dvb_filter_pes2ts_init(&av7110->p2t[0],
 120                                       dvbdmx->pesfilter[0]->pid,
 121                                       dvb_filter_pes2ts_cb,
 122                                       (void *) dvbdmx->pesfilter[0]);
 123                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 124                break;
 125
 126        case RP_VIDEO:
 127                dvb_filter_pes2ts_init(&av7110->p2t[1],
 128                                       dvbdmx->pesfilter[1]->pid,
 129                                       dvb_filter_pes2ts_cb,
 130                                       (void *) dvbdmx->pesfilter[1]);
 131                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 132                break;
 133
 134        case RP_AV:
 135                dvb_filter_pes2ts_init(&av7110->p2t[0],
 136                                       dvbdmx->pesfilter[0]->pid,
 137                                       dvb_filter_pes2ts_cb,
 138                                       (void *) dvbdmx->pesfilter[0]);
 139                dvb_filter_pes2ts_init(&av7110->p2t[1],
 140                                       dvbdmx->pesfilter[1]->pid,
 141                                       dvb_filter_pes2ts_cb,
 142                                       (void *) dvbdmx->pesfilter[1]);
 143                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
 144                break;
 145        }
 146        return ret;
 147}
 148
 149int av7110_av_start_play(struct av7110 *av7110, int av)
 150{
 151        int ret = 0;
 152        dprintk(2, "av7110:%p, \n", av7110);
 153
 154        if (av7110->rec_mode)
 155                return -EBUSY;
 156        if (av7110->playing & av)
 157                return -EBUSY;
 158
 159        av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 160
 161        if (av7110->playing == RP_NONE) {
 162                av7110_ipack_reset(&av7110->ipack[0]);
 163                av7110_ipack_reset(&av7110->ipack[1]);
 164        }
 165
 166        av7110->playing |= av;
 167        switch (av7110->playing) {
 168        case RP_AUDIO:
 169                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 170                break;
 171        case RP_VIDEO:
 172                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 173                av7110->sinfo = 0;
 174                break;
 175        case RP_AV:
 176                av7110->sinfo = 0;
 177                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
 178                break;
 179        }
 180        return ret;
 181}
 182
 183int av7110_av_stop(struct av7110 *av7110, int av)
 184{
 185        int ret = 0;
 186        dprintk(2, "av7110:%p, \n", av7110);
 187
 188        if (!(av7110->playing & av) && !(av7110->rec_mode & av))
 189                return 0;
 190        av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
 191        if (av7110->playing) {
 192                av7110->playing &= ~av;
 193                switch (av7110->playing) {
 194                case RP_AUDIO:
 195                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
 196                        break;
 197                case RP_VIDEO:
 198                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
 199                        break;
 200                case RP_NONE:
 201                        ret = av7110_set_vidmode(av7110, av7110->vidmode);
 202                        break;
 203                }
 204        } else {
 205                av7110->rec_mode &= ~av;
 206                switch (av7110->rec_mode) {
 207                case RP_AUDIO:
 208                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
 209                        break;
 210                case RP_VIDEO:
 211                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
 212                        break;
 213                case RP_NONE:
 214                        break;
 215                }
 216        }
 217        return ret;
 218}
 219
 220
 221int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
 222{
 223        int len;
 224        u32 sync;
 225        u16 blen;
 226
 227        if (!dlen) {
 228                wake_up(&buf->queue);
 229                return -1;
 230        }
 231        while (1) {
 232                len = dvb_ringbuffer_avail(buf);
 233                if (len < 6) {
 234                        wake_up(&buf->queue);
 235                        return -1;
 236                }
 237                sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
 238                sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
 239                sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
 240                sync |= DVB_RINGBUFFER_PEEK(buf, 3);
 241
 242                if (((sync &~ 0x0f) == 0x000001e0) ||
 243                    ((sync &~ 0x1f) == 0x000001c0) ||
 244                    (sync == 0x000001bd))
 245                        break;
 246                printk("resync\n");
 247                DVB_RINGBUFFER_SKIP(buf, 1);
 248        }
 249        blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
 250        blen |= DVB_RINGBUFFER_PEEK(buf, 5);
 251        blen += 6;
 252        if (len < blen || blen > dlen) {
 253                //printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
 254                wake_up(&buf->queue);
 255                return -1;
 256        }
 257
 258        dvb_ringbuffer_read(buf, dest, (size_t) blen);
 259
 260        dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
 261               (unsigned long) buf->pread, (unsigned long) buf->pwrite);
 262        wake_up(&buf->queue);
 263        return blen;
 264}
 265
 266
 267int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
 268                      unsigned int volright)
 269{
 270        unsigned int vol, val, balance = 0;
 271        int err;
 272
 273        dprintk(2, "av7110:%p, \n", av7110);
 274
 275        av7110->mixer.volume_left = volleft;
 276        av7110->mixer.volume_right = volright;
 277
 278        switch (av7110->adac_type) {
 279        case DVB_ADAC_TI:
 280                volleft = (volleft * 256) / 1036;
 281                volright = (volright * 256) / 1036;
 282                if (volleft > 0x3f)
 283                        volleft = 0x3f;
 284                if (volright > 0x3f)
 285                        volright = 0x3f;
 286                if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
 287                        return err;
 288                return SendDAC(av7110, 4, volright);
 289
 290        case DVB_ADAC_CRYSTAL:
 291                volleft = 127 - volleft / 2;
 292                volright = 127 - volright / 2;
 293                i2c_writereg(av7110, 0x20, 0x03, volleft);
 294                i2c_writereg(av7110, 0x20, 0x04, volright);
 295                return 0;
 296
 297        case DVB_ADAC_MSP34x0:
 298                vol  = (volleft > volright) ? volleft : volright;
 299                val     = (vol * 0x73 / 255) << 8;
 300                if (vol > 0)
 301                       balance = ((volright - volleft) * 127) / vol;
 302                msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 303                msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 304                msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
 305                return 0;
 306
 307        case DVB_ADAC_MSP34x5:
 308                vol = (volleft > volright) ? volleft : volright;
 309                val = (vol * 0x73 / 255) << 8;
 310                if (vol > 0)
 311                        balance = ((volright - volleft) * 127) / vol;
 312                msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
 313                msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
 314                return 0;
 315        }
 316
 317        return 0;
 318}
 319
 320int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
 321{
 322        int ret;
 323        dprintk(2, "av7110:%p, \n", av7110);
 324
 325        ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
 326
 327        if (!ret && !av7110->playing) {
 328                ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
 329                           av7110->pids[DMX_PES_AUDIO],
 330                           av7110->pids[DMX_PES_TELETEXT],
 331                           0, av7110->pids[DMX_PES_PCR]);
 332                if (!ret)
 333                        ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
 334        }
 335        return ret;
 336}
 337
 338
 339static enum av7110_video_mode sw2mode[16] = {
 340        AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 341        AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
 342        AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
 343        AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
 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        AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
 348};
 349
 350static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
 351{
 352        int i;
 353        int hsize, vsize;
 354        int sw;
 355        u8 *p;
 356        int ret = 0;
 357
 358        dprintk(2, "av7110:%p, \n", av7110);
 359
 360        if (av7110->sinfo)
 361                return 0;
 362        for (i = 7; i < count - 10; i++) {
 363                p = buf + i;
 364                if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
 365                        continue;
 366                p += 4;
 367                hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
 368                vsize = ((p[1] &0x0F) << 8) | (p[2]);
 369                sw = (p[3] & 0x0F);
 370                ret = av7110_set_vidmode(av7110, sw2mode[sw]);
 371                if (!ret) {
 372                        dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
 373                        av7110->sinfo = 1;
 374                }
 375                break;
 376        }
 377        return ret;
 378}
 379
 380
 381/****************************************************************************
 382 * I/O buffer management and control
 383 ****************************************************************************/
 384
 385static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
 386                                         const u8 *buf, unsigned long count)
 387{
 388        unsigned long todo = count;
 389        int free;
 390
 391        while (todo > 0) {
 392                if (dvb_ringbuffer_free(rbuf) < 2048) {
 393                        if (wait_event_interruptible(rbuf->queue,
 394                                                     (dvb_ringbuffer_free(rbuf) >= 2048)))
 395                                return count - todo;
 396                }
 397                free = dvb_ringbuffer_free(rbuf);
 398                if (free > todo)
 399                        free = todo;
 400                dvb_ringbuffer_write(rbuf, buf, free);
 401                todo -= free;
 402                buf += free;
 403        }
 404
 405        return count - todo;
 406}
 407
 408static void play_video_cb(u8 *buf, int count, void *priv)
 409{
 410        struct av7110 *av7110 = (struct av7110 *) priv;
 411        dprintk(2, "av7110:%p, \n", av7110);
 412
 413        if ((buf[3] & 0xe0) == 0xe0) {
 414                get_video_format(av7110, buf, count);
 415                aux_ring_buffer_write(&av7110->avout, buf, count);
 416        } else
 417                aux_ring_buffer_write(&av7110->aout, buf, count);
 418}
 419
 420static void play_audio_cb(u8 *buf, int count, void *priv)
 421{
 422        struct av7110 *av7110 = (struct av7110 *) priv;
 423        dprintk(2, "av7110:%p, \n", av7110);
 424
 425        aux_ring_buffer_write(&av7110->aout, buf, count);
 426}
 427
 428
 429#define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
 430
 431static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
 432                       unsigned long count, int nonblock, int type)
 433{
 434        struct dvb_ringbuffer *rb;
 435        u8 *kb;
 436        unsigned long todo = count;
 437
 438        dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
 439
 440        rb = (type) ? &av7110->avout : &av7110->aout;
 441        kb = av7110->kbuf[type];
 442
 443        if (!kb)
 444                return -ENOBUFS;
 445
 446        if (nonblock && !FREE_COND_TS)
 447                return -EWOULDBLOCK;
 448
 449        while (todo >= TS_SIZE) {
 450                if (!FREE_COND_TS) {
 451                        if (nonblock)
 452                                return count - todo;
 453                        if (wait_event_interruptible(rb->queue, FREE_COND_TS))
 454                                return count - todo;
 455                }
 456                if (copy_from_user(kb, buf, TS_SIZE))
 457                        return -EFAULT;
 458                write_ts_to_decoder(av7110, type, kb, TS_SIZE);
 459                todo -= TS_SIZE;
 460                buf += TS_SIZE;
 461        }
 462
 463        return count - todo;
 464}
 465
 466
 467#define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
 468                   dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 469
 470static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
 471                        unsigned long count, int nonblock, int type)
 472{
 473        unsigned long todo = count, n;
 474        dprintk(2, "av7110:%p, \n", av7110);
 475
 476        if (!av7110->kbuf[type])
 477                return -ENOBUFS;
 478
 479        if (nonblock && !FREE_COND)
 480                return -EWOULDBLOCK;
 481
 482        while (todo > 0) {
 483                if (!FREE_COND) {
 484                        if (nonblock)
 485                                return count - todo;
 486                        if (wait_event_interruptible(av7110->avout.queue,
 487                                                     FREE_COND))
 488                                return count - todo;
 489                }
 490                n = todo;
 491                if (n > IPACKS * 2)
 492                        n = IPACKS * 2;
 493                if (copy_from_user(av7110->kbuf[type], buf, n))
 494                        return -EFAULT;
 495                av7110_ipack_instant_repack(av7110->kbuf[type], n,
 496                                            &av7110->ipack[type]);
 497                todo -= n;
 498                buf += n;
 499        }
 500        return count - todo;
 501}
 502
 503static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
 504                        unsigned long count, int nonblock, int type)
 505{
 506        unsigned long todo = count, n;
 507        dprintk(2, "av7110:%p, \n", av7110);
 508
 509        if (!av7110->kbuf[type])
 510                return -ENOBUFS;
 511
 512        if (nonblock && !FREE_COND)
 513                return -EWOULDBLOCK;
 514
 515        while (todo > 0) {
 516                if (!FREE_COND) {
 517                        if (nonblock)
 518                                return count - todo;
 519                        if (wait_event_interruptible(av7110->avout.queue,
 520                                                     FREE_COND))
 521                                return count - todo;
 522                }
 523                n = todo;
 524                if (n > IPACKS * 2)
 525                        n = IPACKS * 2;
 526                av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
 527                todo -= n;
 528                buf += n;
 529        }
 530        return count - todo;
 531}
 532
 533static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
 534                         unsigned long count, int nonblock, int type)
 535{
 536        unsigned long todo = count, n;
 537        dprintk(2, "av7110:%p, \n", av7110);
 538
 539        if (!av7110->kbuf[type])
 540                return -ENOBUFS;
 541        if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
 542                return -EWOULDBLOCK;
 543
 544        while (todo > 0) {
 545                if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
 546                        if (nonblock)
 547                                return count - todo;
 548                        if (wait_event_interruptible(av7110->aout.queue,
 549                                        (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
 550                                return count-todo;
 551                }
 552                n = todo;
 553                if (n > IPACKS * 2)
 554                        n = IPACKS * 2;
 555                if (copy_from_user(av7110->kbuf[type], buf, n))
 556                        return -EFAULT;
 557                av7110_ipack_instant_repack(av7110->kbuf[type], n,
 558                                            &av7110->ipack[type]);
 559                todo -= n;
 560                buf += n;
 561        }
 562        return count - todo;
 563}
 564
 565void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
 566{
 567        memset(p->pes, 0, TS_SIZE);
 568        p->counter = 0;
 569        p->pos = 0;
 570        p->frags = 0;
 571        if (feed)
 572                p->feed = feed;
 573}
 574
 575static void clear_p2t(struct av7110_p2t *p)
 576{
 577        memset(p->pes, 0, TS_SIZE);
 578//      p->counter = 0;
 579        p->pos = 0;
 580        p->frags = 0;
 581}
 582
 583
 584static int find_pes_header(u8 const *buf, long int length, int *frags)
 585{
 586        int c = 0;
 587        int found = 0;
 588
 589        *frags = 0;
 590
 591        while (c < length - 3 && !found) {
 592                if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
 593                    buf[c + 2] == 0x01) {
 594                        switch ( buf[c + 3] ) {
 595                        case PROG_STREAM_MAP:
 596                        case PRIVATE_STREAM2:
 597                        case PROG_STREAM_DIR:
 598                        case ECM_STREAM     :
 599                        case EMM_STREAM     :
 600                        case PADDING_STREAM :
 601                        case DSM_CC_STREAM  :
 602                        case ISO13522_STREAM:
 603                        case PRIVATE_STREAM1:
 604                        case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 605                        case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 606                                found = 1;
 607                                break;
 608
 609                        default:
 610                                c++;
 611                                break;
 612                        }
 613                } else
 614                        c++;
 615        }
 616        if (c == length - 3 && !found) {
 617                if (buf[length - 1] == 0x00)
 618                        *frags = 1;
 619                if (buf[length - 2] == 0x00 &&
 620                    buf[length - 1] == 0x00)
 621                        *frags = 2;
 622                if (buf[length - 3] == 0x00 &&
 623                    buf[length - 2] == 0x00 &&
 624                    buf[length - 1] == 0x01)
 625                        *frags = 3;
 626                return -1;
 627        }
 628
 629        return c;
 630}
 631
 632void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
 633{
 634        int c, c2, l, add;
 635        int check, rest;
 636
 637        c = 0;
 638        c2 = 0;
 639        if (p->frags){
 640                check = 0;
 641                switch(p->frags) {
 642                case 1:
 643                        if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
 644                                check = 1;
 645                                c += 2;
 646                        }
 647                        break;
 648                case 2:
 649                        if (buf[c] == 0x01) {
 650                                check = 1;
 651                                c++;
 652                        }
 653                        break;
 654                case 3:
 655                        check = 1;
 656                }
 657                if (check) {
 658                        switch (buf[c]) {
 659                        case PROG_STREAM_MAP:
 660                        case PRIVATE_STREAM2:
 661                        case PROG_STREAM_DIR:
 662                        case ECM_STREAM     :
 663                        case EMM_STREAM     :
 664                        case PADDING_STREAM :
 665                        case DSM_CC_STREAM  :
 666                        case ISO13522_STREAM:
 667                        case PRIVATE_STREAM1:
 668                        case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 669                        case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 670                                p->pes[0] = 0x00;
 671                                p->pes[1] = 0x00;
 672                                p->pes[2] = 0x01;
 673                                p->pes[3] = buf[c];
 674                                p->pos = 4;
 675                                memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
 676                                c += (TS_SIZE - 4) - p->pos;
 677                                p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
 678                                clear_p2t(p);
 679                                break;
 680
 681                        default:
 682                                c = 0;
 683                                break;
 684                        }
 685                }
 686                p->frags = 0;
 687        }
 688
 689        if (p->pos) {
 690                c2 = find_pes_header(buf + c, length - c, &p->frags);
 691                if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
 692                        l = c2+c;
 693                else
 694                        l = (TS_SIZE - 4) - p->pos;
 695                memcpy(p->pes + p->pos, buf, l);
 696                c += l;
 697                p->pos += l;
 698                p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
 699                clear_p2t(p);
 700        }
 701
 702        add = 0;
 703        while (c < length) {
 704                c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
 705                if (c2 >= 0) {
 706                        c2 += c + add;
 707                        if (c2 > c){
 708                                p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
 709                                c = c2;
 710                                clear_p2t(p);
 711                                add = 0;
 712                        } else
 713                                add = 1;
 714                } else {
 715                        l = length - c;
 716                        rest = l % (TS_SIZE - 4);
 717                        l -= rest;
 718                        p_to_t(buf + c, l, pid, &p->counter, p->feed);
 719                        memcpy(p->pes, buf + c + l, rest);
 720                        p->pos = rest;
 721                        c = length;
 722                }
 723        }
 724}
 725
 726
 727static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
 728{
 729        int i;
 730        int c = 0;
 731        int fill;
 732        u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
 733
 734        fill = (TS_SIZE - 4) - length;
 735        if (pes_start)
 736                tshead[1] = 0x40;
 737        if (fill)
 738                tshead[3] = 0x30;
 739        tshead[1] |= (u8)((pid & 0x1F00) >> 8);
 740        tshead[2] |= (u8)(pid & 0x00FF);
 741        tshead[3] |= ((*counter)++ & 0x0F);
 742        memcpy(buf, tshead, 4);
 743        c += 4;
 744
 745        if (fill) {
 746                buf[4] = fill - 1;
 747                c++;
 748                if (fill > 1) {
 749                        buf[5] = 0x00;
 750                        c++;
 751                }
 752                for (i = 6; i < fill + 4; i++) {
 753                        buf[i] = 0xFF;
 754                        c++;
 755                }
 756        }
 757
 758        return c;
 759}
 760
 761
 762static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
 763                   struct dvb_demux_feed *feed)
 764{
 765        int l, pes_start;
 766        u8 obuf[TS_SIZE];
 767        long c = 0;
 768
 769        pes_start = 0;
 770        if (length > 3 &&
 771             buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
 772                switch (buf[3]) {
 773                        case PROG_STREAM_MAP:
 774                        case PRIVATE_STREAM2:
 775                        case PROG_STREAM_DIR:
 776                        case ECM_STREAM     :
 777                        case EMM_STREAM     :
 778                        case PADDING_STREAM :
 779                        case DSM_CC_STREAM  :
 780                        case ISO13522_STREAM:
 781                        case PRIVATE_STREAM1:
 782                        case AUDIO_STREAM_S ... AUDIO_STREAM_E:
 783                        case VIDEO_STREAM_S ... VIDEO_STREAM_E:
 784                                pes_start = 1;
 785                                break;
 786
 787                        default:
 788                                break;
 789                }
 790
 791        while (c < length) {
 792                memset(obuf, 0, TS_SIZE);
 793                if (length - c >= (TS_SIZE - 4)){
 794                        l = write_ts_header2(pid, counter, pes_start,
 795                                             obuf, (TS_SIZE - 4));
 796                        memcpy(obuf + l, buf + c, TS_SIZE - l);
 797                        c += TS_SIZE - l;
 798                } else {
 799                        l = write_ts_header2(pid, counter, pes_start,
 800                                             obuf, length - c);
 801                        memcpy(obuf + l, buf + c, TS_SIZE - l);
 802                        c = length;
 803                }
 804                feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, NULL);
 805                pes_start = 0;
 806        }
 807}
 808
 809
 810static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
 811{
 812        struct ipack *ipack = &av7110->ipack[type];
 813
 814        if (buf[1] & TRANS_ERROR) {
 815                av7110_ipack_reset(ipack);
 816                return -1;
 817        }
 818
 819        if (!(buf[3] & PAYLOAD))
 820                return -1;
 821
 822        if (buf[1] & PAY_START)
 823                av7110_ipack_flush(ipack);
 824
 825        if (buf[3] & ADAPT_FIELD) {
 826                len -= buf[4] + 1;
 827                buf += buf[4] + 1;
 828                if (!len)
 829                        return 0;
 830        }
 831
 832        av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
 833        return 0;
 834}
 835
 836
 837int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
 838{
 839        struct dvb_demux *demux = feed->demux;
 840        struct av7110 *av7110 = (struct av7110 *) demux->priv;
 841
 842        dprintk(2, "av7110:%p, \n", av7110);
 843
 844        if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
 845                return 0;
 846
 847        switch (feed->pes_type) {
 848        case 0:
 849                if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
 850                        return -EINVAL;
 851                break;
 852        case 1:
 853                if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
 854                        return -EINVAL;
 855                break;
 856        default:
 857                return -1;
 858        }
 859
 860        return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
 861}
 862
 863
 864
 865/******************************************************************************
 866 * Video MPEG decoder events
 867 ******************************************************************************/
 868void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
 869{
 870        struct dvb_video_events *events = &av7110->video_events;
 871        int wp;
 872
 873        spin_lock_bh(&events->lock);
 874
 875        wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
 876        if (wp == events->eventr) {
 877                events->overflow = 1;
 878                events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 879        }
 880
 881        //FIXME: timestamp?
 882        memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
 883        events->eventw = wp;
 884
 885        spin_unlock_bh(&events->lock);
 886
 887        wake_up_interruptible(&events->wait_queue);
 888}
 889
 890
 891static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
 892{
 893        struct dvb_video_events *events = &av7110->video_events;
 894
 895        if (events->overflow) {
 896                events->overflow = 0;
 897                return -EOVERFLOW;
 898        }
 899        if (events->eventw == events->eventr) {
 900                int ret;
 901
 902                if (flags & O_NONBLOCK)
 903                        return -EWOULDBLOCK;
 904
 905                ret = wait_event_interruptible(events->wait_queue,
 906                                               events->eventw != events->eventr);
 907                if (ret < 0)
 908                        return ret;
 909        }
 910
 911        spin_lock_bh(&events->lock);
 912
 913        memcpy(event, &events->events[events->eventr],
 914               sizeof(struct video_event));
 915        events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
 916
 917        spin_unlock_bh(&events->lock);
 918
 919        return 0;
 920}
 921
 922/******************************************************************************
 923 * DVB device file operations
 924 ******************************************************************************/
 925
 926static __poll_t dvb_video_poll(struct file *file, poll_table *wait)
 927{
 928        struct dvb_device *dvbdev = file->private_data;
 929        struct av7110 *av7110 = dvbdev->priv;
 930        __poll_t mask = 0;
 931
 932        dprintk(2, "av7110:%p, \n", av7110);
 933
 934        if ((file->f_flags & O_ACCMODE) != O_RDONLY)
 935                poll_wait(file, &av7110->avout.queue, wait);
 936
 937        poll_wait(file, &av7110->video_events.wait_queue, wait);
 938
 939        if (av7110->video_events.eventw != av7110->video_events.eventr)
 940                mask = EPOLLPRI;
 941
 942        if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
 943                if (av7110->playing) {
 944                        if (FREE_COND)
 945                                mask |= (EPOLLOUT | EPOLLWRNORM);
 946                } else {
 947                        /* if not playing: may play if asked for */
 948                        mask |= (EPOLLOUT | EPOLLWRNORM);
 949                }
 950        }
 951
 952        return mask;
 953}
 954
 955static ssize_t dvb_video_write(struct file *file, const char __user *buf,
 956                               size_t count, loff_t *ppos)
 957{
 958        struct dvb_device *dvbdev = file->private_data;
 959        struct av7110 *av7110 = dvbdev->priv;
 960        unsigned char c;
 961
 962        dprintk(2, "av7110:%p, \n", av7110);
 963
 964        if ((file->f_flags & O_ACCMODE) == O_RDONLY)
 965                return -EPERM;
 966
 967        if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
 968                return -EPERM;
 969
 970        if (get_user(c, buf))
 971                return -EFAULT;
 972        if (c == 0x47 && count % TS_SIZE == 0)
 973                return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 974        else
 975                return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
 976}
 977
 978static __poll_t dvb_audio_poll(struct file *file, poll_table *wait)
 979{
 980        struct dvb_device *dvbdev = file->private_data;
 981        struct av7110 *av7110 = dvbdev->priv;
 982        __poll_t mask = 0;
 983
 984        dprintk(2, "av7110:%p, \n", av7110);
 985
 986        poll_wait(file, &av7110->aout.queue, wait);
 987
 988        if (av7110->playing) {
 989                if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
 990                        mask |= (EPOLLOUT | EPOLLWRNORM);
 991        } else /* if not playing: may play if asked for */
 992                mask = (EPOLLOUT | EPOLLWRNORM);
 993
 994        return mask;
 995}
 996
 997static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
 998                               size_t count, loff_t *ppos)
 999{
1000        struct dvb_device *dvbdev = file->private_data;
1001        struct av7110 *av7110 = dvbdev->priv;
1002        unsigned char c;
1003
1004        dprintk(2, "av7110:%p, \n", av7110);
1005
1006        if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1007                printk(KERN_ERR "not audio source memory\n");
1008                return -EPERM;
1009        }
1010
1011        if (get_user(c, buf))
1012                return -EFAULT;
1013        if (c == 0x47 && count % TS_SIZE == 0)
1014                return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1015        else
1016                return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1017}
1018
1019static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1020
1021#define MIN_IFRAME 400000
1022
1023static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1024{
1025        unsigned i, n;
1026        int progressive = 0;
1027        int match = 0;
1028
1029        dprintk(2, "av7110:%p, \n", av7110);
1030
1031        if (len == 0)
1032                return 0;
1033
1034        if (!(av7110->playing & RP_VIDEO)) {
1035                if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1036                        return -EBUSY;
1037        }
1038
1039        /* search in buf for instances of 00 00 01 b5 1? */
1040        for (i = 0; i < len; i++) {
1041                unsigned char c;
1042                if (get_user(c, buf + i))
1043                        return -EFAULT;
1044                if (match == 5) {
1045                        progressive = c & 0x08;
1046                        match = 0;
1047                }
1048                if (c == 0x00) {
1049                        match = (match == 1 || match == 2) ? 2 : 1;
1050                        continue;
1051                }
1052                switch (match++) {
1053                case 2: if (c == 0x01)
1054                                continue;
1055                        break;
1056                case 3: if (c == 0xb5)
1057                                continue;
1058                        break;
1059                case 4: if ((c & 0xf0) == 0x10)
1060                                continue;
1061                        break;
1062                }
1063                match = 0;
1064        }
1065
1066        /* setting n always > 1, fixes problems when playing stillframes
1067           consisting of I- and P-Frames */
1068        n = MIN_IFRAME / len + 1;
1069
1070        /* FIXME: nonblock? */
1071        dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1072
1073        for (i = 0; i < n; i++)
1074                dvb_play(av7110, buf, len, 0, 1);
1075
1076        av7110_ipack_flush(&av7110->ipack[1]);
1077
1078        if (progressive)
1079                return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1080        else
1081                return 0;
1082}
1083
1084#ifdef CONFIG_COMPAT
1085struct compat_video_still_picture {
1086        compat_uptr_t iFrame;
1087        int32_t size;
1088};
1089#define VIDEO_STILLPICTURE32 _IOW('o', 30, struct compat_video_still_picture)
1090
1091struct compat_video_event {
1092        __s32 type;
1093        /* unused, make sure to use atomic time for y2038 if it ever gets used */
1094        compat_long_t timestamp;
1095        union {
1096                video_size_t size;
1097                unsigned int frame_rate;        /* in frames per 1000sec */
1098                unsigned char vsync_field;      /* unknown/odd/even/progressive */
1099        } u;
1100};
1101#define VIDEO_GET_EVENT32 _IOR('o', 28, struct compat_video_event)
1102
1103static int dvb_compat_video_get_event(struct av7110 *av7110,
1104                                      struct compat_video_event *event, int flags)
1105{
1106        struct video_event ev;
1107        int ret;
1108
1109        ret = dvb_video_get_event(av7110, &ev, flags);
1110
1111        *event = (struct compat_video_event) {
1112                .type = ev.type,
1113                .timestamp = ev.timestamp,
1114                .u.size = ev.u.size,
1115        };
1116
1117        return ret;
1118}
1119#endif
1120
1121static int dvb_video_ioctl(struct file *file,
1122                           unsigned int cmd, void *parg)
1123{
1124        struct dvb_device *dvbdev = file->private_data;
1125        struct av7110 *av7110 = dvbdev->priv;
1126        unsigned long arg = (unsigned long) parg;
1127        int ret = 0;
1128
1129        dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1130
1131        if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1132                if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1133                     cmd != VIDEO_GET_SIZE ) {
1134                        return -EPERM;
1135                }
1136        }
1137
1138        if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1139                return -ERESTARTSYS;
1140
1141        switch (cmd) {
1142        case VIDEO_STOP:
1143                av7110->videostate.play_state = VIDEO_STOPPED;
1144                if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1145                        ret = av7110_av_stop(av7110, RP_VIDEO);
1146                else
1147                        ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1148                               av7110->videostate.video_blank ? 0 : 1);
1149                if (!ret)
1150                        av7110->trickmode = TRICK_NONE;
1151                break;
1152
1153        case VIDEO_PLAY:
1154                av7110->trickmode = TRICK_NONE;
1155                if (av7110->videostate.play_state == VIDEO_FREEZED) {
1156                        av7110->videostate.play_state = VIDEO_PLAYING;
1157                        ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1158                        if (ret)
1159                                break;
1160                }
1161                if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1162                        if (av7110->playing == RP_AV) {
1163                                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1164                                if (ret)
1165                                        break;
1166                                av7110->playing &= ~RP_VIDEO;
1167                        }
1168                        ret = av7110_av_start_play(av7110, RP_VIDEO);
1169                }
1170                if (!ret)
1171                        ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1172                if (!ret)
1173                        av7110->videostate.play_state = VIDEO_PLAYING;
1174                break;
1175
1176        case VIDEO_FREEZE:
1177                av7110->videostate.play_state = VIDEO_FREEZED;
1178                if (av7110->playing & RP_VIDEO)
1179                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1180                else
1181                        ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1182                if (!ret)
1183                        av7110->trickmode = TRICK_FREEZE;
1184                break;
1185
1186        case VIDEO_CONTINUE:
1187                if (av7110->playing & RP_VIDEO)
1188                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1189                if (!ret)
1190                        ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1191                if (!ret) {
1192                        av7110->videostate.play_state = VIDEO_PLAYING;
1193                        av7110->trickmode = TRICK_NONE;
1194                }
1195                break;
1196
1197        case VIDEO_SELECT_SOURCE:
1198                av7110->videostate.stream_source = (video_stream_source_t) arg;
1199                break;
1200
1201        case VIDEO_SET_BLANK:
1202                av7110->videostate.video_blank = (int) arg;
1203                break;
1204
1205        case VIDEO_GET_STATUS:
1206                memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1207                break;
1208
1209#ifdef CONFIG_COMPAT
1210        case VIDEO_GET_EVENT32:
1211                ret = dvb_compat_video_get_event(av7110, parg, file->f_flags);
1212                break;
1213#endif
1214
1215        case VIDEO_GET_EVENT:
1216                ret = dvb_video_get_event(av7110, parg, file->f_flags);
1217                break;
1218
1219        case VIDEO_GET_SIZE:
1220                memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1221                break;
1222
1223        case VIDEO_SET_DISPLAY_FORMAT:
1224        {
1225                video_displayformat_t format = (video_displayformat_t) arg;
1226                switch (format) {
1227                case VIDEO_PAN_SCAN:
1228                        av7110->display_panscan = VID_PAN_SCAN_PREF;
1229                        break;
1230                case VIDEO_LETTER_BOX:
1231                        av7110->display_panscan = VID_VC_AND_PS_PREF;
1232                        break;
1233                case VIDEO_CENTER_CUT_OUT:
1234                        av7110->display_panscan = VID_CENTRE_CUT_PREF;
1235                        break;
1236                default:
1237                        ret = -EINVAL;
1238                }
1239                if (ret < 0)
1240                        break;
1241                av7110->videostate.display_format = format;
1242                ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1243                                    1, av7110->display_panscan);
1244                break;
1245        }
1246
1247        case VIDEO_SET_FORMAT:
1248                if (arg > 1) {
1249                        ret = -EINVAL;
1250                        break;
1251                }
1252                av7110->display_ar = arg;
1253                ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1254                                    1, (u16) arg);
1255                break;
1256
1257#ifdef CONFIG_COMPAT
1258        case VIDEO_STILLPICTURE32:
1259        {
1260                struct compat_video_still_picture *pic =
1261                        (struct compat_video_still_picture *) parg;
1262                av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1263                dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1264                ret = play_iframe(av7110, compat_ptr(pic->iFrame),
1265                                  pic->size, file->f_flags & O_NONBLOCK);
1266                break;
1267        }
1268#endif
1269
1270        case VIDEO_STILLPICTURE:
1271        {
1272                struct video_still_picture *pic =
1273                        (struct video_still_picture *) parg;
1274                av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1275                dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1276                ret = play_iframe(av7110, pic->iFrame, pic->size,
1277                                  file->f_flags & O_NONBLOCK);
1278                break;
1279        }
1280
1281        case VIDEO_FAST_FORWARD:
1282                //note: arg is ignored by firmware
1283                if (av7110->playing & RP_VIDEO)
1284                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1285                                            __Scan_I, 2, AV_PES, 0);
1286                else
1287                        ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1288                if (!ret) {
1289                        av7110->trickmode = TRICK_FAST;
1290                        av7110->videostate.play_state = VIDEO_PLAYING;
1291                }
1292                break;
1293
1294        case VIDEO_SLOWMOTION:
1295                if (av7110->playing&RP_VIDEO) {
1296                        if (av7110->trickmode != TRICK_SLOW)
1297                                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1298                        if (!ret)
1299                                ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1300                } else {
1301                        ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1302                        if (!ret)
1303                                ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1304                        if (!ret)
1305                                ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1306                }
1307                if (!ret) {
1308                        av7110->trickmode = TRICK_SLOW;
1309                        av7110->videostate.play_state = VIDEO_PLAYING;
1310                }
1311                break;
1312
1313        case VIDEO_GET_CAPABILITIES:
1314                *(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1315                        VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1316                break;
1317
1318        case VIDEO_CLEAR_BUFFER:
1319                dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1320                av7110_ipack_reset(&av7110->ipack[1]);
1321                if (av7110->playing == RP_AV) {
1322                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1323                                            __Play, 2, AV_PES, 0);
1324                        if (ret)
1325                                break;
1326                        if (av7110->trickmode == TRICK_FAST)
1327                                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1328                                                    __Scan_I, 2, AV_PES, 0);
1329                        if (av7110->trickmode == TRICK_SLOW) {
1330                                ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1331                                                    __Slow, 2, 0, 0);
1332                                if (!ret)
1333                                        ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1334                        }
1335                        if (av7110->trickmode == TRICK_FREEZE)
1336                                ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1337                }
1338                break;
1339
1340        case VIDEO_SET_STREAMTYPE:
1341                break;
1342
1343        default:
1344                ret = -ENOIOCTLCMD;
1345                break;
1346        }
1347
1348        mutex_unlock(&av7110->ioctl_mutex);
1349        return ret;
1350}
1351
1352static int dvb_audio_ioctl(struct file *file,
1353                           unsigned int cmd, void *parg)
1354{
1355        struct dvb_device *dvbdev = file->private_data;
1356        struct av7110 *av7110 = dvbdev->priv;
1357        unsigned long arg = (unsigned long) parg;
1358        int ret = 0;
1359
1360        dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1361
1362        if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1363            (cmd != AUDIO_GET_STATUS))
1364                return -EPERM;
1365
1366        if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1367                return -ERESTARTSYS;
1368
1369        switch (cmd) {
1370        case AUDIO_STOP:
1371                if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1372                        ret = av7110_av_stop(av7110, RP_AUDIO);
1373                else
1374                        ret = audcom(av7110, AUDIO_CMD_MUTE);
1375                if (!ret)
1376                        av7110->audiostate.play_state = AUDIO_STOPPED;
1377                break;
1378
1379        case AUDIO_PLAY:
1380                if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1381                        ret = av7110_av_start_play(av7110, RP_AUDIO);
1382                if (!ret)
1383                        ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1384                if (!ret)
1385                        av7110->audiostate.play_state = AUDIO_PLAYING;
1386                break;
1387
1388        case AUDIO_PAUSE:
1389                ret = audcom(av7110, AUDIO_CMD_MUTE);
1390                if (!ret)
1391                        av7110->audiostate.play_state = AUDIO_PAUSED;
1392                break;
1393
1394        case AUDIO_CONTINUE:
1395                if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1396                        av7110->audiostate.play_state = AUDIO_PLAYING;
1397                        ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1398                }
1399                break;
1400
1401        case AUDIO_SELECT_SOURCE:
1402                av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1403                break;
1404
1405        case AUDIO_SET_MUTE:
1406        {
1407                ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1408                if (!ret)
1409                        av7110->audiostate.mute_state = (int) arg;
1410                break;
1411        }
1412
1413        case AUDIO_SET_AV_SYNC:
1414                av7110->audiostate.AV_sync_state = (int) arg;
1415                ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1416                break;
1417
1418        case AUDIO_SET_BYPASS_MODE:
1419                if (FW_VERSION(av7110->arm_app) < 0x2621)
1420                        ret = -EINVAL;
1421                av7110->audiostate.bypass_mode = (int)arg;
1422                break;
1423
1424        case AUDIO_CHANNEL_SELECT:
1425                av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1426                switch(av7110->audiostate.channel_select) {
1427                case AUDIO_STEREO:
1428                        ret = audcom(av7110, AUDIO_CMD_STEREO);
1429                        if (!ret) {
1430                                if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1431                                        i2c_writereg(av7110, 0x20, 0x02, 0x49);
1432                                else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1433                                        msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1434                        }
1435                        break;
1436                case AUDIO_MONO_LEFT:
1437                        ret = audcom(av7110, AUDIO_CMD_MONO_L);
1438                        if (!ret) {
1439                                if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1440                                        i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1441                                else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1442                                        msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1443                        }
1444                        break;
1445                case AUDIO_MONO_RIGHT:
1446                        ret = audcom(av7110, AUDIO_CMD_MONO_R);
1447                        if (!ret) {
1448                                if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1449                                        i2c_writereg(av7110, 0x20, 0x02, 0x45);
1450                                else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1451                                        msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1452                        }
1453                        break;
1454                default:
1455                        ret = -EINVAL;
1456                        break;
1457                }
1458                break;
1459
1460        case AUDIO_GET_STATUS:
1461                memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1462                break;
1463
1464        case AUDIO_GET_CAPABILITIES:
1465                if (FW_VERSION(av7110->arm_app) < 0x2621)
1466                        *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1467                else
1468                        *(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1469                                                AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1470                break;
1471
1472        case AUDIO_CLEAR_BUFFER:
1473                dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1474                av7110_ipack_reset(&av7110->ipack[0]);
1475                if (av7110->playing == RP_AV)
1476                        ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1477                                            __Play, 2, AV_PES, 0);
1478                break;
1479
1480        case AUDIO_SET_ID:
1481                break;
1482
1483        case AUDIO_SET_MIXER:
1484        {
1485                struct audio_mixer *amix = (struct audio_mixer *)parg;
1486                ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1487                break;
1488        }
1489
1490        case AUDIO_SET_STREAMTYPE:
1491                break;
1492
1493        default:
1494                ret = -ENOIOCTLCMD;
1495        }
1496
1497        mutex_unlock(&av7110->ioctl_mutex);
1498        return ret;
1499}
1500
1501
1502static int dvb_video_open(struct inode *inode, struct file *file)
1503{
1504        struct dvb_device *dvbdev = file->private_data;
1505        struct av7110 *av7110 = dvbdev->priv;
1506        int err;
1507
1508        dprintk(2, "av7110:%p, \n", av7110);
1509
1510        if ((err = dvb_generic_open(inode, file)) < 0)
1511                return err;
1512
1513        if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1514                dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1515                dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1516                av7110->video_blank = 1;
1517                av7110->audiostate.AV_sync_state = 1;
1518                av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1519
1520                /*  empty event queue */
1521                av7110->video_events.eventr = av7110->video_events.eventw = 0;
1522        }
1523
1524        return 0;
1525}
1526
1527static int dvb_video_release(struct inode *inode, struct file *file)
1528{
1529        struct dvb_device *dvbdev = file->private_data;
1530        struct av7110 *av7110 = dvbdev->priv;
1531
1532        dprintk(2, "av7110:%p, \n", av7110);
1533
1534        if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1535                av7110_av_stop(av7110, RP_VIDEO);
1536        }
1537
1538        return dvb_generic_release(inode, file);
1539}
1540
1541static int dvb_audio_open(struct inode *inode, struct file *file)
1542{
1543        struct dvb_device *dvbdev = file->private_data;
1544        struct av7110 *av7110 = dvbdev->priv;
1545        int err = dvb_generic_open(inode, file);
1546
1547        dprintk(2, "av7110:%p, \n", av7110);
1548
1549        if (err < 0)
1550                return err;
1551        dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1552        av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1553        return 0;
1554}
1555
1556static int dvb_audio_release(struct inode *inode, struct file *file)
1557{
1558        struct dvb_device *dvbdev = file->private_data;
1559        struct av7110 *av7110 = dvbdev->priv;
1560
1561        dprintk(2, "av7110:%p, \n", av7110);
1562
1563        av7110_av_stop(av7110, RP_AUDIO);
1564        return dvb_generic_release(inode, file);
1565}
1566
1567
1568
1569/******************************************************************************
1570 * driver registration
1571 ******************************************************************************/
1572
1573static const struct file_operations dvb_video_fops = {
1574        .owner          = THIS_MODULE,
1575        .write          = dvb_video_write,
1576        .unlocked_ioctl = dvb_generic_ioctl,
1577        .compat_ioctl   = dvb_generic_ioctl,
1578        .open           = dvb_video_open,
1579        .release        = dvb_video_release,
1580        .poll           = dvb_video_poll,
1581        .llseek         = noop_llseek,
1582};
1583
1584static struct dvb_device dvbdev_video = {
1585        .priv           = NULL,
1586        .users          = 6,
1587        .readers        = 5,    /* arbitrary */
1588        .writers        = 1,
1589        .fops           = &dvb_video_fops,
1590        .kernel_ioctl   = dvb_video_ioctl,
1591};
1592
1593static const struct file_operations dvb_audio_fops = {
1594        .owner          = THIS_MODULE,
1595        .write          = dvb_audio_write,
1596        .unlocked_ioctl = dvb_generic_ioctl,
1597        .compat_ioctl   = dvb_generic_ioctl,
1598        .open           = dvb_audio_open,
1599        .release        = dvb_audio_release,
1600        .poll           = dvb_audio_poll,
1601        .llseek         = noop_llseek,
1602};
1603
1604static struct dvb_device dvbdev_audio = {
1605        .priv           = NULL,
1606        .users          = 1,
1607        .writers        = 1,
1608        .fops           = &dvb_audio_fops,
1609        .kernel_ioctl   = dvb_audio_ioctl,
1610};
1611
1612
1613int av7110_av_register(struct av7110 *av7110)
1614{
1615        av7110->audiostate.AV_sync_state = 0;
1616        av7110->audiostate.mute_state = 0;
1617        av7110->audiostate.play_state = AUDIO_STOPPED;
1618        av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1619        av7110->audiostate.channel_select = AUDIO_STEREO;
1620        av7110->audiostate.bypass_mode = 0;
1621
1622        av7110->videostate.video_blank = 0;
1623        av7110->videostate.play_state = VIDEO_STOPPED;
1624        av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1625        av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1626        av7110->videostate.display_format = VIDEO_LETTER_BOX;
1627        av7110->display_ar = VIDEO_FORMAT_4_3;
1628        av7110->display_panscan = VID_VC_AND_PS_PREF;
1629
1630        init_waitqueue_head(&av7110->video_events.wait_queue);
1631        spin_lock_init(&av7110->video_events.lock);
1632        av7110->video_events.eventw = av7110->video_events.eventr = 0;
1633        av7110->video_events.overflow = 0;
1634        memset(&av7110->video_size, 0, sizeof (video_size_t));
1635
1636        dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1637                            &dvbdev_video, av7110, DVB_DEVICE_VIDEO, 0);
1638
1639        dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1640                            &dvbdev_audio, av7110, DVB_DEVICE_AUDIO, 0);
1641
1642        return 0;
1643}
1644
1645void av7110_av_unregister(struct av7110 *av7110)
1646{
1647        dvb_unregister_device(av7110->audio_dev);
1648        dvb_unregister_device(av7110->video_dev);
1649}
1650
1651int av7110_av_init(struct av7110 *av7110)
1652{
1653        void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1654        int i, ret;
1655
1656        for (i = 0; i < 2; i++) {
1657                struct ipack *ipack = av7110->ipack + i;
1658
1659                ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1660                if (ret < 0) {
1661                        if (i)
1662                                av7110_ipack_free(--ipack);
1663                        goto out;
1664                }
1665                ipack->data = av7110;
1666        }
1667
1668        dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1669        dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1670
1671        av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1672        av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1673out:
1674        return ret;
1675}
1676
1677void av7110_av_exit(struct av7110 *av7110)
1678{
1679        av7110_ipack_free(&av7110->ipack[0]);
1680        av7110_ipack_free(&av7110->ipack[1]);
1681}
1682