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  * $DragonFly: src/usr.sbin/fwcontrol/fwdv.c,v 1.3 2003/08/08 04:18:44 dillon 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
  55 #include <bus/firewire/firewire.h>
  56 #include <bus/firewire/iec68113.h>
  57
  58 #define DEBUG           0
  59 #define FIX_FRAME       1
  60
  61 struct frac {
  62         int n,d;
  63 };
  64
  65 struct frac frame_cycle[2]  = {
  66         {8000*100, 2997},       /* NTSC 8000 cycle / 29.97 Hz */
  67         {320, 1},               /* PAL  8000 cycle / 25 Hz */
  68 };
  69 int npackets[] = {
  70         250             /* NTSC */,
  71         300             /* PAL */
  72 };
  73 struct frac pad_rate[2]  = {
  74         {203, 2997},    /* = (8000 - 29.97 * 250)/(29.97 * 250) */
  75         {1, 15},        /* = (8000 - 25 * 300)/(25 * 300) */
  76 };
  77 char *system_name[] = {"NTSC", "PAL"};
  78 int frame_rate[] = {30, 25};
  79
  80 #define PSIZE 512
  81 #define DSIZE 480
  82 #define NCHUNK 8
  83
  84 #define NPACKET_R 256
  85 #define NPACKET_T 255
  86 #define TNBUF 100       /* XXX too large value causes block noise */
  87 #define NEMPTY 10       /* depends on TNBUF */
  88 #define RBUFSIZE (PSIZE * NPACKET_R)
  89 #define MAXBLOCKS (300)
  90 #define CYCLE_FRAC 0xc00
  91
  92 int
  93 dvrecv(int d, char *filename, char ich, int count)
  94 {
  95         struct fw_isochreq isoreq;
  96         struct fw_isobufreq bufreq;
  97         struct dvdbc *dv;
  98         struct ciphdr *ciph;
  99         struct fw_pkt *pkt;
 100         char *pad, *buf;
 101         u_int32_t *ptr;
 102         int len, tlen, npad, fd, k, m, vec, system = -1, nb;
 103         int nblocks[] = {250 /* NTSC */, 300 /* PAL */};
 104         struct iovec wbuf[NPACKET_R];
 105
 106         fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
 107         buf = (char *)malloc(RBUFSIZE);
 108         pad = (char *)malloc(DSIZE*MAXBLOCKS);
 109         memset(pad, 0xff, DSIZE*MAXBLOCKS);
 110         bzero(wbuf, sizeof(wbuf));
 111
 112         bufreq.rx.nchunk = NCHUNK;
 113         bufreq.rx.npacket = NPACKET_R;
 114         bufreq.rx.psize = PSIZE;
 115         bufreq.tx.nchunk = 0;
 116         bufreq.tx.npacket = 0;
 117         bufreq.tx.psize = 0;
 118         if (ioctl(d, FW_SSTBUF, &bufreq) < 0) {
 119                 err(1, "ioctl");
 120         }
 121
 122         isoreq.ch = ich & 0x3f;
 123         isoreq.tag = (ich >> 6) & 3;
 124
 125         if( ioctl(d, FW_SRSTREAM, &isoreq) < 0)
 126                 err(1, "ioctl");
 127
 128         k = m = 0;
 129         while (count <= 0 || k <= count) {
 130 #if 0
 131                 tlen = 0;
 132                 while ((len = read(d, buf + tlen, PSIZE
 133                                                 /* RBUFSIZE - tlen */)) > 0) {
 134                         if (len < 0) {
 135                                 if (errno == EAGAIN) {
 136                                         fprintf(stderr, "(EAGAIN)\n");
 137                                         fflush(stderr);
 138                                         if (len <= 0)
 139                                                 continue;
 140                                 } else
 141                                         err(1, "read failed");
 142                         }
 143                         tlen += len;
 144                         if ((RBUFSIZE - tlen) < PSIZE)
 145                                 break;
 146                 };
 147 #else
 148                 tlen = len = read(d, buf, RBUFSIZE);
 149                 if (len < 0) {
 150                         if (errno == EAGAIN) {
 151                                 fprintf(stderr, "(EAGAIN)\n");
 152                                 fflush(stderr);
 153                                 if (len <= 0)
 154                                         continue;
 155                         } else
 156                                 err(1, "read failed");
 157                 }
 158 #endif
 159                 vec = 0;
 160                 ptr = (u_int32_t *) buf;
 161 again:
 162                 pkt = (struct fw_pkt *) ptr;
 163 #if DEBUG
 164                 fprintf(stderr, "%08x %08x %08x %08x\n",
 165                         htonl(ptr[0]), htonl(ptr[1]),
 166                         htonl(ptr[2]), htonl(ptr[3]));
 167 #endif
 168                 ciph = (struct ciphdr *)(ptr + 1);      /* skip iso header */
 169                 if (ciph->fmt != CIP_FMT_DVCR)
 170                         errx(1, "unknown format 0x%x", ciph->fmt);
 171                 ptr = (u_int32_t *) (ciph + 1);         /* skip cip header */
 172 #if DEBUG
 173                 if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
 174                         fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
 175                 }
 176 #endif
 177                 if (pkt->mode.stream.len <= sizeof(struct ciphdr))
 178                         /* no payload */
 179                         goto next;
 180                 for (dv = (struct dvdbc *)ptr;
 181                                 (char *)dv < (char *)(ptr + ciph->len);
 182                                 dv+=6) {
 183
 184 #if DEBUG
 185                         fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
 186 #endif
 187                         if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
 188                                 if (system < 0) {
 189                                         system = ciph->fdf.dv.fs;
 190                                         printf("%s\n", system_name[system]);
 191                                 }
 192
 193                                 /* Fix DSF bit */
 194                                 if (system == 1 &&
 195                                         (dv->payload[0] & DV_DSF_12) == 0)
 196                                         dv->payload[0] |= DV_DSF_12;
 197                                 nb = nblocks[system];
 198                                 fprintf(stderr, "%d", k%10);
 199 #if FIX_FRAME
 200                                 if (m > 0 && m != nb) {
 201                                         /* padding bad frame */
 202                                         npad = ((nb - m) % nb);
 203                                         if (npad < 0)
 204                                                 npad += nb;
 205                                         fprintf(stderr, "(%d blocks padded)",
 206                                                                 npad);
 207                                         npad *= DSIZE;
 208                                         wbuf[vec].iov_base = pad;
 209                                         wbuf[vec++].iov_len = npad;
 210                                         if (vec >= NPACKET_R) {
 211                                                 writev(fd, wbuf, vec);
 212                                                 vec = 0;
 213                                         }
 214                                 }
 215 #endif
 216                                 k++;
 217                                 if (k % frame_rate[system] == 0) {
 218                                         /* every second */
 219                                         fprintf(stderr, "\n");
 220                                 }
 221                                 fflush(stderr);
 222                                 m = 0;
 223                         }
 224                         if (k == 0 || (count > 0 && k > count))
 225                                 continue;
 226                         m++;
 227                         wbuf[vec].iov_base = (char *) dv;
 228                         wbuf[vec++].iov_len = DSIZE;
 229                         if (vec >= NPACKET_R) {
 230                                 writev(fd, wbuf, vec);
 231                                 vec = 0;
 232                         }
 233                 }
 234                 ptr = (u_int32_t *)dv;
 235 next:
 236                 if ((char *)ptr < buf + tlen)
 237                         goto again;
 238                 if (vec > 0)
 239                         writev(fd, wbuf, vec);
 240         }
 241         close(fd);
 242         fprintf(stderr, "\n");
 243         return 0;
 244 }
 245
 246
 247 int
 248 dvsend(int d, char *filename, char ich, int count)
 249 {
 250         struct fw_isochreq isoreq;
 251         struct fw_isobufreq bufreq;
 252         struct dvdbc *dv;
 253         struct fw_pkt *pkt;
 254         int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
 255         int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac;
 256         struct iovec wbuf[TNBUF*2 + NEMPTY];
 257         char *pbuf;
 258         u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
 259         struct ciphdr *ciph;
 260         struct timeval start, end;
 261         double rtime;
 262
 263         fd = open(filename, O_RDONLY);
 264         pbuf = (char *)malloc(DSIZE * TNBUF);
 265         bzero(wbuf, sizeof(wbuf));
 266
 267         bufreq.rx.nchunk = 0;
 268         bufreq.rx.npacket = 0;
 269         bufreq.rx.psize = 0;
 270         bufreq.tx.nchunk = NCHUNK;
 271         bufreq.tx.npacket = NPACKET_T;
 272         bufreq.tx.psize = PSIZE;
 273         if (ioctl(d, FW_SSTBUF, &bufreq) < 0) {
 274                 err(1, "ioctl");
 275         }
 276
 277         isoreq.ch = ich & 0x3f;
 278         isoreq.tag = (ich >> 6) & 3;
 279
 280         if( ioctl(d, FW_STSTREAM, &isoreq) < 0)
 281                 err(1, "ioctl");
 282
 283         iso_data = 0;
 284         pkt = (struct fw_pkt *) &iso_data;
 285         pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
 286         pkt->mode.stream.sy = 0;
 287         pkt->mode.stream.tcode = FWTCODE_STREAM;
 288         pkt->mode.stream.chtag = ich;
 289         iso_empty = iso_data;
 290         pkt = (struct fw_pkt *) &iso_empty;
 291         pkt->mode.stream.len = sizeof(struct ciphdr);
 292
 293         bzero(hdr[0], sizeof(hdr[0]));
 294         hdr[0][0] = iso_data;
 295         ciph = (struct ciphdr *)&hdr[0][1];
 296         ciph->src = 0;   /* XXX */
 297         ciph->len = 120;
 298         ciph->dbc = 0;
 299         ciph->eoh1 = 1;
 300         ciph->fdf.dv.cyc = 0xffff;
 301
 302         for (i = 1; i < TNBUF; i++) {
 303                 bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
 304         }
 305
 306         gettimeofday(&start, NULL);
 307 #if DEBUG
 308         fprintf(stderr, "%08x %08x %08x\n",
 309                         htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
 310 #endif
 311         frames = 0;
 312         packets = 0;
 313         pad_acc = 0;
 314         while (1) {
 315                 tlen = 0;
 316                 while (tlen < DSIZE * TNBUF) {
 317                         len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
 318                         if (len <= 0) {
 319                                 if (tlen > 0)
 320                                         break;
 321                                 if (len < 0)
 322                                         warn("read");
 323                                 else
 324                                         printf("\nend of file\n");
 325                                 goto send_end;
 326                         }
 327                         tlen += len;
 328                 }
 329                 vec = 0;
 330                 offset = 0;
 331                 nhdr = 0;
 332 next:
 333                 dv = (struct dvdbc *)(pbuf + offset * DSIZE);
 334 #if 0
 335                 header = (dv->sct == 0 && dv->dseq == 0);
 336 #else
 337                 header = (packets == 0 || packets % npackets[system] == 0);
 338 #endif
 339
 340                 ciph = (struct ciphdr *)&hdr[nhdr][1];
 341                 if (header) {
 342                         if (system < 0) {
 343                                 system = ((dv->payload[0] & DV_DSF_12) != 0);
 344                                 printf("%s\n", system_name[system]);
 345                                 cycle = 1;
 346                                 cycle_acc = frame_cycle[system].d * cycle;
 347                         }
 348                         fprintf(stderr, "%d", frames % 10);
 349                         frames ++;
 350                         if (count > 0 && frames > count)
 351                                 break;
 352                         if (frames % frame_rate[system] == 0)
 353                                 fprintf(stderr, "\n");
 354                         fflush(stderr);
 355                         f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf;
 356                         f_frac = (cycle_acc % frame_cycle[system].d
 357                                         * CYCLE_FRAC) / frame_cycle[system].d;
 358 #if 0
 359                         ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
 360 #else
 361                         ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
 362 #endif
 363                         cycle_acc += frame_cycle[system].n;
 364                         cycle_acc %= frame_cycle[system].d * 0x10;
 365
 366                 } else {
 367                         ciph->fdf.dv.cyc = 0xffff;
 368                 }
 369                 ciph->dbc = packets++ % 256;
 370                 pad_acc += pad_rate[system].n;
 371                 if (pad_acc >= pad_rate[system].d) {
 372                         pad_acc -= pad_rate[system].d;
 373                         bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
 374                         hdr[nhdr][0] = iso_empty;
 375                         wbuf[vec].iov_base = (char *)hdr[nhdr];
 376                         wbuf[vec++].iov_len = sizeof(hdr[0]);
 377                         nhdr ++;
 378                         cycle ++;
 379                 }
 380                 hdr[nhdr][0] = iso_data;
 381                 wbuf[vec].iov_base = (char *)hdr[nhdr];
 382                 wbuf[vec++].iov_len = sizeof(hdr[0]);
 383                 wbuf[vec].iov_base = (char *)dv;
 384                 wbuf[vec++].iov_len = DSIZE;
 385                 nhdr ++;
 386                 cycle ++;
 387                 offset ++;
 388                 if (offset * DSIZE < tlen)
 389                         goto next;
 390
 391 again:
 392                 len = writev(d, wbuf, vec);
 393                 if (len < 0) {
 394                         if (errno == EAGAIN) {
 395                                 fprintf(stderr, "(EAGAIN)\n");
 396                                 fflush(stderr);
 397                                 goto again;
 398                         }
 399                         err(1, "write failed");
 400                 }
 401         }
 402         close(fd);
 403         fprintf(stderr, "\n");
 404 send_end:
 405         gettimeofday(&end, NULL);
 406         rtime = end.tv_sec - start.tv_sec
 407                         + (end.tv_usec - start.tv_usec) * 1e-6;
 408         fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
 409                         frames, rtime, frames/rtime);
 410         return 0;
 411 }