usr.sbin/fwcontrol/fwdv.c

   1 /*
   2  * Copyright (C) 2003
   3  *      Hidetoshi Shimokawa. All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *
  16  *      This product includes software developed by Hidetoshi Shimokawa.
  17  *
  18  * 4. Neither the name of the author nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/usr.sbin/fwcontrol/fwdv.c,v 1.2.2.4 2003/04/28 03:29:18 simokawa Exp $
  35  */
  36 #include <sys/param.h>
  37 #include <sys/ioctl.h>
  38 #include <sys/time.h>
  39 #include <sys/types.h>
  40 #include <sys/uio.h>
  41
  42 #if __FreeBSD_version >= 500000
  43 #include <arpa/inet.h>
  44 #endif
  45
  46 #include <err.h>
  47 #include <errno.h>
  48 #include <unistd.h>
  49 #include <fcntl.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <string.h>
  53
  54 #include <dev/firewire/firewire.h>
  55 #include <dev/firewire/iec68113.h>
  56
  57 #define DEBUG           0
  58 #define FIX_FRAME       1
  59
  60 struct frac {
  61         int n,d;
  62 };
  63
  64 struct frac frame_cycle[2]  = {
  65         {8000*100, 2997},       /* NTSC 8000 cycle / 29.97 Hz */
  66         {320, 1},               /* PAL  8000 cycle / 25 Hz */
  67 };
  68 int npackets[] = {
  69         250             /* NTSC */,
  70         300             /* PAL */
  71 };
  72 struct frac pad_rate[2]  = {
  73         {203, 2997},    /* = (8000 - 29.97 * 250)/(29.97 * 250) */
  74         {1, 15},        /* = (8000 - 25 * 300)/(25 * 300) */
  75 };
  76 char *system_name[] = {"NTSC", "PAL"};
  77 int frame_rate[] = {30, 25};
  78
  79 #define PSIZE 512
  80 #define DSIZE 480
  81 #define NCHUNK 8
  82
  83 #define NPACKET_R 256
  84 #define NPACKET_T 255
  85 #define TNBUF 100       /* XXX too large value causes block noise */
  86 #define NEMPTY 10       /* depends on TNBUF */
  87 #define RBUFSIZE (PSIZE * NPACKET_R)
  88 #define MAXBLOCKS (300)
  89 #define CYCLE_FRAC 0xc00
  90
  91 int
  92 dvrecv(int d, char *filename, char ich, int count)
  93 {
  94         struct fw_isochreq isoreq;
  95         struct fw_isobufreq bufreq;
  96         struct dvdbc *dv;
  97         struct ciphdr *ciph;
  98         struct fw_pkt *pkt;
  99         char *pad, *buf;
 100         u_int32_t *ptr;
 101         int len, tlen, npad, fd, k, m, vec, system = -1, nb;
 102         int nblocks[] = {250 /* NTSC */, 300 /* PAL */};
 103         struct iovec wbuf[NPACKET_R];
 104
 105         fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
 106         buf = (char *)malloc(RBUFSIZE);
 107         pad = (char *)malloc(DSIZE*MAXBLOCKS);
 108         memset(pad, 0xff, DSIZE*MAXBLOCKS);
 109         bzero(wbuf, sizeof(wbuf));
 110
 111         bufreq.rx.nchunk = NCHUNK;
 112         bufreq.rx.npacket = NPACKET_R;
 113         bufreq.rx.psize = PSIZE;
 114         bufreq.tx.nchunk = 0;
 115         bufreq.tx.npacket = 0;
 116         bufreq.tx.psize = 0;
 117         if (ioctl(d, FW_SSTBUF, &bufreq) < 0) {
 118                 err(1, "ioctl");
 119         }
 120
 121         isoreq.ch = ich & 0x3f;
 122         isoreq.tag = (ich >> 6) & 3;
 123
 124         if( ioctl(d, FW_SRSTREAM, &isoreq) < 0)
 125                 err(1, "ioctl");
 126
 127         k = m = 0;
 128         while (count <= 0 || k <= count) {
 129 #if 0
 130                 tlen = 0;
 131                 while ((len = read(d, buf + tlen, PSIZE
 132                                                 /* RBUFSIZE - tlen */)) > 0) {
 133                         if (len < 0) {
 134                                 if (errno == EAGAIN) {
 135                                         fprintf(stderr, "(EAGAIN)\n");
 136                                         fflush(stderr);
 137                                         if (len <= 0)
 138                                                 continue;
 139                                 } else
 140                                         err(1, "read failed");
 141                         }
 142                         tlen += len;
 143                         if ((RBUFSIZE - tlen) < PSIZE)
 144                                 break;
 145                 };
 146 #else
 147                 tlen = len = read(d, buf, RBUFSIZE);
 148                 if (len < 0) {
 149                         if (errno == EAGAIN) {
 150                                 fprintf(stderr, "(EAGAIN)\n");
 151                                 fflush(stderr);
 152                                 if (len <= 0)
 153                                         continue;
 154                         } else
 155                                 err(1, "read failed");
 156                 }
 157 #endif
 158                 vec = 0;
 159                 ptr = (u_int32_t *) buf;
 160 again:
 161                 pkt = (struct fw_pkt *) ptr;
 162 #if DEBUG
 163                 fprintf(stderr, "%08x %08x %08x %08x\n",
 164                         htonl(ptr[0]), htonl(ptr[1]),
 165                         htonl(ptr[2]), htonl(ptr[3]));
 166 #endif
 167                 ciph = (struct ciphdr *)(ptr + 1);      /* skip iso header */
 168                 if (ciph->fmt != CIP_FMT_DVCR)
 169                         errx(1, "unknown format 0x%x", ciph->fmt);
 170                 ptr = (u_int32_t *) (ciph + 1);         /* skip cip header */
 171 #if DEBUG
 172                 if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
 173                         fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
 174                 }
 175 #endif
 176                 if (pkt->mode.stream.len <= sizeof(struct ciphdr))
 177                         /* no payload */
 178                         goto next;
 179                 for (dv = (struct dvdbc *)ptr;
 180                                 (char *)dv < (char *)(ptr + ciph->len);
 181                                 dv+=6) {
 182
 183 #if DEBUG
 184                         fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
 185 #endif
 186                         if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
 187                                 if (system < 0) {
 188                                         system = ciph->fdf.dv.fs;
 189                                         printf("%s\n", system_name[system]);
 190                                 }
 191
 192                                 /* Fix DSF bit */
 193                                 if (system == 1 &&
 194                                         (dv->payload[0] & DV_DSF_12) == 0)
 195                                         dv->payload[0] |= DV_DSF_12;
 196                                 nb = nblocks[system];
 197                                 fprintf(stderr, "%d", k%10);
 198 #if FIX_FRAME
 199                                 if (m > 0 && m != nb) {
 200                                         /* padding bad frame */
 201                                         npad = ((nb - m) % nb);
 202                                         if (npad < 0)
 203                                                 npad += nb;
 204                                         fprintf(stderr, "(%d blocks padded)",
 205                                                                 npad);
 206                                         npad *= DSIZE;
 207                                         wbuf[vec].iov_base = pad;
 208                                         wbuf[vec++].iov_len = npad;
 209                                         if (vec >= NPACKET_R) {
 210                                                 writev(fd, wbuf, vec);
 211                                                 vec = 0;
 212                                         }
 213                                 }
 214 #endif
 215                                 k++;
 216                                 if (k % frame_rate[system] == 0) {
 217                                         /* every second */
 218                                         fprintf(stderr, "\n");
 219                                 }
 220                                 fflush(stderr);
 221                                 m = 0;
 222                         }
 223                         if (k == 0 || (count > 0 && k > count))
 224                                 continue;
 225                         m++;
 226                         wbuf[vec].iov_base = (char *) dv;
 227                         wbuf[vec++].iov_len = DSIZE;
 228                         if (vec >= NPACKET_R) {
 229                                 writev(fd, wbuf, vec);
 230                                 vec = 0;
 231                         }
 232                 }
 233                 ptr = (u_int32_t *)dv;
 234 next:
 235                 if ((char *)ptr < buf + tlen)
 236                         goto again;
 237                 if (vec > 0)
 238                         writev(fd, wbuf, vec);
 239         }
 240         close(fd);
 241         fprintf(stderr, "\n");
 242         return 0;
 243 }
 244
 245
 246 int
 247 dvsend(int d, char *filename, char ich, int count)
 248 {
 249         struct fw_isochreq isoreq;
 250         struct fw_isobufreq bufreq;
 251         struct dvdbc *dv;
 252         struct fw_pkt *pkt;
 253         int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
 254         int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac;
 255         struct iovec wbuf[TNBUF*2 + NEMPTY];
 256         char *pbuf;
 257         u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
 258         struct ciphdr *ciph;
 259         struct timeval start, end;
 260         double rtime;
 261
 262         fd = open(filename, O_RDONLY);
 263         pbuf = (char *)malloc(DSIZE * TNBUF);
 264         bzero(wbuf, sizeof(wbuf));
 265
 266         bufreq.rx.nchunk = 0;
 267         bufreq.rx.npacket = 0;
 268         bufreq.rx.psize = 0;
 269         bufreq.tx.nchunk = NCHUNK;
 270         bufreq.tx.npacket = NPACKET_T;
 271         bufreq.tx.psize = PSIZE;
 272         if (ioctl(d, FW_SSTBUF, &bufreq) < 0) {
 273                 err(1, "ioctl");
 274         }
 275
 276         isoreq.ch = ich & 0x3f;
 277         isoreq.tag = (ich >> 6) & 3;
 278
 279         if( ioctl(d, FW_STSTREAM, &isoreq) < 0)
 280                 err(1, "ioctl");
 281
 282         iso_data = 0;
 283         pkt = (struct fw_pkt *) &iso_data;
 284         pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
 285         pkt->mode.stream.sy = 0;
 286         pkt->mode.stream.tcode = FWTCODE_STREAM;
 287         pkt->mode.stream.chtag = ich;
 288         iso_empty = iso_data;
 289         pkt = (struct fw_pkt *) &iso_empty;
 290         pkt->mode.stream.len = sizeof(struct ciphdr);
 291
 292         bzero(hdr[0], sizeof(hdr[0]));
 293         hdr[0][0] = iso_data;
 294         ciph = (struct ciphdr *)&hdr[0][1];
 295         ciph->src = 0;   /* XXX */
 296         ciph->len = 120;
 297         ciph->dbc = 0;
 298         ciph->eoh1 = 1;
 299         ciph->fdf.dv.cyc = 0xffff;
 300
 301         for (i = 1; i < TNBUF; i++) {
 302                 bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
 303         }
 304
 305         gettimeofday(&start, NULL);
 306 #if DEBUG
 307         fprintf(stderr, "%08x %08x %08x\n",
 308                         htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
 309 #endif
 310         frames = 0;
 311         packets = 0;
 312         pad_acc = 0;
 313         while (1) {
 314                 tlen = 0;
 315                 while (tlen < DSIZE * TNBUF) {
 316                         len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
 317                         if (len <= 0) {
 318                                 if (tlen > 0)
 319                                         break;
 320                                 if (len < 0)
 321                                         warn("read");
 322                                 else
 323                                         printf("\nend of file\n");
 324                                 goto send_end;
 325                         }
 326                         tlen += len;
 327                 }
 328                 vec = 0;
 329                 offset = 0;
 330                 nhdr = 0;
 331 next:
 332                 dv = (struct dvdbc *)(pbuf + offset * DSIZE);
 333 #if 0
 334                 header = (dv->sct == 0 && dv->dseq == 0);
 335 #else
 336                 header = (packets == 0 || packets % npackets[system] == 0);
 337 #endif
 338
 339                 ciph = (struct ciphdr *)&hdr[nhdr][1];
 340                 if (header) {
 341                         if (system < 0) {
 342                                 system = ((dv->payload[0] & DV_DSF_12) != 0);
 343                                 printf("%s\n", system_name[system]);
 344                                 cycle = 1;
 345                                 cycle_acc = frame_cycle[system].d * cycle;
 346                         }
 347                         fprintf(stderr, "%d", frames % 10);
 348                         frames ++;
 349                         if (count > 0 && frames > count)
 350                                 break;
 351                         if (frames % frame_rate[system] == 0)
 352                                 fprintf(stderr, "\n");
 353                         fflush(stderr);
 354                         f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf;
 355                         f_frac = (cycle_acc % frame_cycle[system].d
 356                                         * CYCLE_FRAC) / frame_cycle[system].d;
 357 #if 0
 358                         ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
 359 #else
 360                         ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
 361 #endif
 362                         cycle_acc += frame_cycle[system].n;
 363                         cycle_acc %= frame_cycle[system].d * 0x10;
 364
 365                 } else {
 366                         ciph->fdf.dv.cyc = 0xffff;
 367                 }
 368                 ciph->dbc = packets++ % 256;
 369                 pad_acc += pad_rate[system].n;
 370                 if (pad_acc >= pad_rate[system].d) {
 371                         pad_acc -= pad_rate[system].d;
 372                         bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
 373                         hdr[nhdr][0] = iso_empty;
 374                         wbuf[vec].iov_base = (char *)hdr[nhdr];
 375                         wbuf[vec++].iov_len = sizeof(hdr[0]);
 376                         nhdr ++;
 377                         cycle ++;
 378                 }
 379                 hdr[nhdr][0] = iso_data;
 380                 wbuf[vec].iov_base = (char *)hdr[nhdr];
 381                 wbuf[vec++].iov_len = sizeof(hdr[0]);
 382                 wbuf[vec].iov_base = (char *)dv;
 383                 wbuf[vec++].iov_len = DSIZE;
 384                 nhdr ++;
 385                 cycle ++;
 386                 offset ++;
 387                 if (offset * DSIZE < tlen)
 388                         goto next;
 389
 390 again:
 391                 len = writev(d, wbuf, vec);
 392                 if (len < 0) {
 393                         if (errno == EAGAIN) {
 394                                 fprintf(stderr, "(EAGAIN)\n");
 395                                 fflush(stderr);
 396                                 goto again;
 397                         }
 398                         err(1, "write failed");
 399                 }
 400         }
 401         close(fd);
 402         fprintf(stderr, "\n");
 403 send_end:
 404         gettimeofday(&end, NULL);
 405         rtime = end.tv_sec - start.tv_sec
 406                         + (end.tv_usec - start.tv_usec) * 1e-6;
 407         fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
 408                         frames, rtime, frames/rtime);
 409         return 0;
 410 }