usr.sbin/fwctl/fwdv.c

   1 /*      $NetBSD: fwdv.c,v 1.2 2007/11/06 17:02:15 kiyohara Exp $        */
   2 /*
   3  * Copyright (C) 2003
   4  *      Hidetoshi Shimokawa. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *
  17  *      This product includes software developed by Hidetoshi Shimokawa.
  18  *
  19  * 4. Neither the name of the author nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * $FreeBSD: src/usr.sbin/fwcontrol/fwdv.c,v 1.7 2007/06/17 10:20:55 simokawa Exp $
  36  */
  37 #include <sys/param.h>
  38 #include <sys/ioctl.h>
  39 #include <sys/time.h>
  40 #include <sys/types.h>
  41 #include <sys/uio.h>
  42
  43 #if __FreeBSD_version >= 500000
  44 #include <arpa/inet.h>
  45 #endif
  46
  47 #include <err.h>
  48 #include <errno.h>
  49 #include <unistd.h>
  50 #include <fcntl.h>
  51 #include <stdio.h>
  52 #include <stdlib.h>
  53 #include <string.h>
  54 #include <sysexits.h>
  55
  56 #if defined(__FreeBSD__)
  57 #include <dev/firewire/firewire.h>
  58 #include <dev/firewire/iec68113.h>
  59 #elif defined(__NetBSD__)
  60 #include <dev/ieee1394/firewire.h>
  61 #include <dev/ieee1394/iec68113.h>
  62 #endif
  63
  64 #include "fwmethods.h"
  65
  66 #define DEBUG           0
  67 #define FIX_FRAME       1
  68
  69 struct frac {
  70         int n,d;
  71 };
  72
  73 struct frac frame_cycle[2]  = {
  74         {8000*100, 2997},       /* NTSC 8000 cycle / 29.97 Hz */
  75         {320, 1},               /* PAL  8000 cycle / 25 Hz */
  76 };
  77 int npackets[] = {
  78         250             /* NTSC */,
  79         300             /* PAL */
  80 };
  81 struct frac pad_rate[2]  = {
  82         {203, 2997},    /* = (8000 - 29.97 * 250)/(29.97 * 250) */
  83         {1, 15},        /* = (8000 - 25 * 300)/(25 * 300) */
  84 };
  85 const char *system_name[] = {"NTSC", "PAL"};
  86 int frame_rate[] = {30, 25};
  87
  88 #define PSIZE 512
  89 #define DSIZE 480
  90 #define NCHUNK 64
  91
  92 #define NPACKET_R 256
  93 #define NPACKET_T 255
  94 #define TNBUF 100       /* XXX too large value causes block noise */
  95 #define NEMPTY 10       /* depends on TNBUF */
  96 #define RBUFSIZE (PSIZE * NPACKET_R)
  97 #define MAXBLOCKS (300)
  98 #define CYCLE_FRAC 0xc00
  99
 100 void
 101 dvrecv(int d, const char *filename, char ich, int count)
 102 {
 103         struct fw_isochreq isoreq;
 104         struct fw_isobufreq bufreq;
 105         struct dvdbc *dv;
 106         struct ciphdr *ciph;
 107         struct fw_pkt *pkt;
 108         char *pad, *buf;
 109         u_int32_t *ptr;
 110         int len, tlen, npad, fd, k, m, vec, lsystem = -1, nb;
 111         int nblocks[] = {250 /* NTSC */, 300 /* PAL */};
 112         struct iovec wbuf[NPACKET_R];
 113
 114         if(strcmp(filename, "-") == 0) {
 115                 fd = STDOUT_FILENO;
 116         } else {
 117                 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
 118                 if (fd == -1)
 119                         err(EX_NOINPUT, filename);
 120         }
 121         buf = malloc(RBUFSIZE);
 122         pad = malloc(DSIZE*MAXBLOCKS);
 123         memset(pad, 0xff, DSIZE*MAXBLOCKS);
 124         bzero(wbuf, sizeof(wbuf));
 125
 126         bufreq.rx.nchunk = NCHUNK;
 127         bufreq.rx.npacket = NPACKET_R;
 128         bufreq.rx.psize = PSIZE;
 129         bufreq.tx.nchunk = 0;
 130         bufreq.tx.npacket = 0;
 131         bufreq.tx.psize = 0;
 132         if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
 133                 err(1, "ioctl FW_SSTBUF");
 134
 135         isoreq.ch = ich & 0x3f;
 136         isoreq.tag = (ich >> 6) & 3;
 137
 138         if (ioctl(d, FW_SRSTREAM, &isoreq) < 0)
 139                 err(1, "ioctl");
 140
 141         k = m = 0;
 142         while (count <= 0 || k <= count) {
 143 #if 0
 144                 tlen = 0;
 145                 while ((len = read(d, buf + tlen, PSIZE
 146                                                 /* RBUFSIZE - tlen */)) > 0) {
 147                         if (len < 0) {
 148                                 if (errno == EAGAIN) {
 149                                         fprintf(stderr,
 150                                             "(EAGAIN)- push 'Play'?\n");
 151                                         fflush(stderr);
 152                                         if (len <= 0)
 153                                                 continue;
 154                                 } else
 155                                         err(1, "read failed");
 156                         }
 157                         tlen += len;
 158                         if ((RBUFSIZE - tlen) < PSIZE)
 159                                 break;
 160                 };
 161 #else
 162                 tlen = len = read(d, buf, RBUFSIZE);
 163                 if (len < 0) {
 164                         if (errno == EAGAIN) {
 165                                 fprintf(stderr, "(EAGAIN)\n");
 166                                 fflush(stderr);
 167                                 if (len <= 0)
 168                                         continue;
 169                         } else
 170                                 err(1, "read failed");
 171                 }
 172 #endif
 173                 vec = 0;
 174                 ptr = (u_int32_t *) buf;
 175 again:
 176                 pkt = (struct fw_pkt *) ptr;
 177 #if DEBUG
 178                 fprintf(stderr, "%08x %08x %08x %08x\n",
 179                         htonl(ptr[0]), htonl(ptr[1]),
 180                         htonl(ptr[2]), htonl(ptr[3]));
 181 #endif
 182                 ciph = (struct ciphdr *)(ptr + 1);      /* skip iso header */
 183                 if (ciph->fmt != CIP_FMT_DVCR)
 184                         errx(1, "unknown format 0x%x", ciph->fmt);
 185                 ptr = (u_int32_t *) (ciph + 1);         /* skip cip header */
 186 #if DEBUG
 187                 if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
 188                         fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
 189                 }
 190 #endif
 191                 if (pkt->mode.stream.len <= sizeof(struct ciphdr))
 192                         /* no payload */
 193                         goto next;
 194                 for (dv = (struct dvdbc *)ptr;
 195                                 (char *)dv < (char *)(ptr + ciph->len);
 196                                 dv+=6) {
 197
 198 #if DEBUG
 199                         fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
 200 #endif
 201                         if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
 202                                 if (lsystem < 0) {
 203                                         lsystem = ciph->fdf.dv.fs;
 204                                         fprintf(stderr,
 205                                             "%s\n", system_name[lsystem]);
 206                                 }
 207
 208                                 /* Fix DSF bit */
 209                                 if (lsystem == 1 &&
 210                                         (dv->payload[0] & DV_DSF_12) == 0)
 211                                         dv->payload[0] |= DV_DSF_12;
 212                                 nb = nblocks[lsystem];
 213                                 fprintf(stderr, "%d", k%10);
 214 #if FIX_FRAME
 215                                 if (m > 0 && m != nb) {
 216                                         /* padding bad frame */
 217                                         npad = ((nb - m) % nb);
 218                                         if (npad < 0)
 219                                                 npad += nb;
 220                                         fprintf(stderr, "(%d blocks padded)",
 221                                                                 npad);
 222                                         npad *= DSIZE;
 223                                         wbuf[vec].iov_base = pad;
 224                                         wbuf[vec++].iov_len = npad;
 225                                         if (vec >= NPACKET_R) {
 226                                                 writev(fd, wbuf, vec);
 227                                                 vec = 0;
 228                                         }
 229                                 }
 230 #endif
 231                                 k++;
 232                                 if (k % frame_rate[lsystem] == 0) {
 233                                         /* every second */
 234                                         fprintf(stderr, "\n");
 235                                 }
 236                                 fflush(stderr);
 237                                 m = 0;
 238                         }
 239                         if (k == 0 || (count > 0 && k > count))
 240                                 continue;
 241                         m++;
 242                         wbuf[vec].iov_base = (char *) dv;
 243                         wbuf[vec++].iov_len = DSIZE;
 244                         if (vec >= NPACKET_R) {
 245                                 writev(fd, wbuf, vec);
 246                                 vec = 0;
 247                         }
 248                 }
 249                 ptr = (u_int32_t *)dv;
 250 next:
 251                 if ((char *)ptr < buf + tlen)
 252                         goto again;
 253                 if (vec > 0)
 254                         writev(fd, wbuf, vec);
 255         }
 256         if(fd != STDOUT_FILENO) {
 257                 close(fd);
 258         }
 259         fprintf(stderr, "\n");
 260 }
 261
 262
 263 void
 264 dvsend(int d, const char *filename, char ich, int count)
 265 {
 266         struct fw_isochreq isoreq;
 267         struct fw_isobufreq bufreq;
 268         struct dvdbc *dv;
 269         struct fw_pkt *pkt;
 270         int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
 271         int lsystem=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac;
 272         struct iovec wbuf[TNBUF*2 + NEMPTY];
 273         char *pbuf;
 274         u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
 275         struct ciphdr *ciph;
 276         struct timeval start, end;
 277         double rtime;
 278
 279         cycle_acc = cycle = 0;
 280
 281         fd = open(filename, O_RDONLY);
 282         if (fd == -1)
 283                 err(EX_NOINPUT, filename);
 284
 285         pbuf = malloc(DSIZE * TNBUF);
 286         bzero(wbuf, sizeof(wbuf));
 287
 288         bufreq.rx.nchunk = 0;
 289         bufreq.rx.npacket = 0;
 290         bufreq.rx.psize = 0;
 291         bufreq.tx.nchunk = NCHUNK;
 292         bufreq.tx.npacket = NPACKET_T;
 293         bufreq.tx.psize = PSIZE;
 294         if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
 295                 err(1, "ioctl FW_SSTBUF");
 296
 297         isoreq.ch = ich & 0x3f;
 298         isoreq.tag = (ich >> 6) & 3;
 299
 300         if (ioctl(d, FW_STSTREAM, &isoreq) < 0)
 301                 err(1, "ioctl FW_STSTREAM");
 302
 303         iso_data = 0;
 304         pkt = (struct fw_pkt *) &iso_data;
 305         pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
 306         pkt->mode.stream.sy = 0;
 307         pkt->mode.stream.tcode = FWTCODE_STREAM;
 308         pkt->mode.stream.chtag = ich;
 309         iso_empty = iso_data;
 310         pkt = (struct fw_pkt *) &iso_empty;
 311         pkt->mode.stream.len = sizeof(struct ciphdr);
 312
 313         bzero(hdr[0], sizeof(hdr[0]));
 314         hdr[0][0] = iso_data;
 315         ciph = (struct ciphdr *)&hdr[0][1];
 316         ciph->src = 0;   /* XXX */
 317         ciph->len = 120;
 318         ciph->dbc = 0;
 319         ciph->eoh1 = 1;
 320         ciph->fdf.dv.cyc = 0xffff;
 321
 322         for (i = 1; i < TNBUF; i++)
 323                 bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
 324
 325         gettimeofday(&start, NULL);
 326 #if DEBUG
 327         fprintf(stderr, "%08x %08x %08x\n",
 328                         htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
 329 #endif
 330         frames = 0;
 331         packets = 0;
 332         pad_acc = 0;
 333         while (1) {
 334                 tlen = 0;
 335                 while (tlen < DSIZE * TNBUF) {
 336                         len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
 337                         if (len <= 0) {
 338                                 if (tlen > 0)
 339                                         break;
 340                                 if (len < 0)
 341                                         warn("read");
 342                                 else
 343                                         fprintf(stderr, "\nend of file\n");
 344                                 goto send_end;
 345                         }
 346                         tlen += len;
 347                 }
 348                 vec = 0;
 349                 offset = 0;
 350                 nhdr = 0;
 351 next:
 352                 dv = (struct dvdbc *)(pbuf + offset * DSIZE);
 353 #if 0
 354                 header = (dv->sct == 0 && dv->dseq == 0);
 355 #else
 356                 header = (packets == 0 || packets % npackets[lsystem] == 0);
 357 #endif
 358
 359                 ciph = (struct ciphdr *)&hdr[nhdr][1];
 360                 if (header) {
 361                         if (lsystem < 0) {
 362                                 lsystem = ((dv->payload[0] & DV_DSF_12) != 0);
 363                                 printf("%s\n", system_name[lsystem]);
 364                                 cycle = 1;
 365                                 cycle_acc = frame_cycle[lsystem].d * cycle;
 366                         }
 367                         fprintf(stderr, "%d", frames % 10);
 368                         frames ++;
 369                         if (count > 0 && frames > count)
 370                                 break;
 371                         if (frames % frame_rate[lsystem] == 0)
 372                                 fprintf(stderr, "\n");
 373                         fflush(stderr);
 374                         f_cycle = (cycle_acc / frame_cycle[lsystem].d) & 0xf;
 375                         f_frac = (cycle_acc % frame_cycle[lsystem].d
 376                                         * CYCLE_FRAC) / frame_cycle[lsystem].d;
 377 #if 0
 378                         ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
 379 #else
 380                         ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
 381 #endif
 382                         cycle_acc += frame_cycle[lsystem].n;
 383                         cycle_acc %= frame_cycle[lsystem].d * 0x10;
 384
 385                 } else {
 386                         ciph->fdf.dv.cyc = 0xffff;
 387                 }
 388                 ciph->dbc = packets++ % 256;
 389                 pad_acc += pad_rate[lsystem].n;
 390                 if (pad_acc >= pad_rate[lsystem].d) {
 391                         pad_acc -= pad_rate[lsystem].d;
 392                         bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
 393                         hdr[nhdr][0] = iso_empty;
 394                         wbuf[vec].iov_base = (char *)hdr[nhdr];
 395                         wbuf[vec++].iov_len = sizeof(hdr[0]);
 396                         nhdr ++;
 397                         cycle ++;
 398                 }
 399                 hdr[nhdr][0] = iso_data;
 400                 wbuf[vec].iov_base = (char *)hdr[nhdr];
 401                 wbuf[vec++].iov_len = sizeof(hdr[0]);
 402                 wbuf[vec].iov_base = (char *)dv;
 403                 wbuf[vec++].iov_len = DSIZE;
 404                 nhdr ++;
 405                 cycle ++;
 406                 offset ++;
 407                 if (offset * DSIZE < tlen)
 408                         goto next;
 409
 410 again:
 411                 len = writev(d, wbuf, vec);
 412                 if (len < 0) {
 413                         if (errno == EAGAIN) {
 414                                 fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
 415                                 goto again;
 416                         }
 417                         err(1, "write failed");
 418                 }
 419         }
 420         close(fd);
 421         fprintf(stderr, "\n");
 422 send_end:
 423         gettimeofday(&end, NULL);
 424         rtime = end.tv_sec - start.tv_sec
 425                         + (end.tv_usec - start.tv_usec) * 1e-6;
 426         fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
 427                         frames, rtime, frames/rtime);
 428 }