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
  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 const 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 dvrecv(int, char *, char, int);
  93 int dvsend(int, char *, char, int);
  94
  95 int
  96 dvrecv(int d, char *filename, char ich, int count)
  97 {
  98         struct fw_isochreq isoreq;
  99         struct fw_isobufreq bufreq;
 100         struct dvdbc *dv;
 101         struct ciphdr *ciph;
 102         struct fw_pkt *pkt;
 103         char *pad, *buf;
 104         u_int32_t *ptr;
 105         int len, tlen, npad, fd, k, m, vec, systype = -1, nb;
 106         int nblocks[] = {250 /* NTSC */, 300 /* PAL */};
 107         struct iovec wbuf[NPACKET_R];
 108
 109         fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
 110         buf = (char *)malloc(RBUFSIZE);
 111         pad = (char *)malloc(DSIZE*MAXBLOCKS);
 112         memset(pad, 0xff, DSIZE*MAXBLOCKS);
 113         bzero(wbuf, sizeof(wbuf));
 114
 115         bufreq.rx.nchunk = NCHUNK;
 116         bufreq.rx.npacket = NPACKET_R;
 117         bufreq.rx.psize = PSIZE;
 118         bufreq.tx.nchunk = 0;
 119         bufreq.tx.npacket = 0;
 120         bufreq.tx.psize = 0;
 121         if (ioctl(d, FW_SSTBUF, &bufreq) < 0) {
 122                 err(1, "ioctl");
 123         }
 124
 125         isoreq.ch = ich & 0x3f;
 126         isoreq.tag = (ich >> 6) & 3;
 127
 128         if( ioctl(d, FW_SRSTREAM, &isoreq) < 0)
 129                 err(1, "ioctl");
 130
 131         k = m = 0;
 132         while (count <= 0 || k <= count) {
 133 #if 0
 134                 tlen = 0;
 135                 while ((len = read(d, buf + tlen, PSIZE
 136                                                 /* RBUFSIZE - tlen */)) > 0) {
 137                         if (len < 0) {
 138                                 if (errno == EAGAIN) {
 139                                         fprintf(stderr, "(EAGAIN)\n");
 140                                         fflush(stderr);
 141                                         if (len <= 0)
 142                                                 continue;
 143                                 } else
 144                                         err(1, "read failed");
 145                         }
 146                         tlen += len;
 147                         if ((RBUFSIZE - tlen) < PSIZE)
 148                                 break;
 149                 };
 150 #else
 151                 tlen = len = read(d, buf, RBUFSIZE);
 152                 if (len < 0) {
 153                         if (errno == EAGAIN) {
 154                                 fprintf(stderr, "(EAGAIN)\n");
 155                                 fflush(stderr);
 156                                 if (len <= 0)
 157                                         continue;
 158                         } else
 159                                 err(1, "read failed");
 160                 }
 161 #endif
 162                 vec = 0;
 163                 ptr = (u_int32_t *) buf;
 164 again:
 165                 pkt = (struct fw_pkt *) ptr;
 166 #if DEBUG
 167                 fprintf(stderr, "%08x %08x %08x %08x\n",
 168                         htonl(ptr[0]), htonl(ptr[1]),
 169                         htonl(ptr[2]), htonl(ptr[3]));
 170 #endif
 171                 ciph = (struct ciphdr *)(ptr + 1);      /* skip iso header */
 172                 if (ciph->fmt != CIP_FMT_DVCR)
 173                         errx(1, "unknown format 0x%x", ciph->fmt);
 174                 ptr = (u_int32_t *) (ciph + 1);         /* skip cip header */
 175 #if DEBUG
 176                 if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
 177                         fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
 178                 }
 179 #endif
 180                 if (pkt->mode.stream.len <= sizeof(struct ciphdr))
 181                         /* no payload */
 182                         goto next;
 183                 for (dv = (struct dvdbc *)ptr;
 184                                 (char *)dv < (char *)(ptr + ciph->len);
 185                                 dv+=6) {
 186
 187 #if DEBUG
 188                         fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
 189 #endif
 190                         if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
 191                                 if (systype < 0) {
 192                                         systype = ciph->fdf.dv.fs;
 193                                         printf("%s\n", system_name[systype]);
 194                                 }
 195
 196                                 /* Fix DSF bit */
 197                                 if (systype == 1 &&
 198                                         (dv->payload[0] & DV_DSF_12) == 0)
 199                                         dv->payload[0] |= DV_DSF_12;
 200                                 nb = nblocks[systype];
 201                                 fprintf(stderr, "%d", k%10);
 202 #if FIX_FRAME
 203                                 if (m > 0 && m != nb) {
 204                                         /* padding bad frame */
 205                                         npad = ((nb - m) % nb);
 206                                         if (npad < 0)
 207                                                 npad += nb;
 208                                         fprintf(stderr, "(%d blocks padded)",
 209                                                                 npad);
 210                                         npad *= DSIZE;
 211                                         wbuf[vec].iov_base = pad;
 212                                         wbuf[vec++].iov_len = npad;
 213                                         if (vec >= NPACKET_R) {
 214                                                 writev(fd, wbuf, vec);
 215                                                 vec = 0;
 216                                         }
 217                                 }
 218 #endif
 219                                 k++;
 220                                 if (k % frame_rate[systype] == 0) {
 221                                         /* every second */
 222                                         fprintf(stderr, "\n");
 223                                 }
 224                                 fflush(stderr);
 225                                 m = 0;
 226                         }
 227                         if (k == 0 || (count > 0 && k > count))
 228                                 continue;
 229                         m++;
 230                         wbuf[vec].iov_base = (char *) dv;
 231                         wbuf[vec++].iov_len = DSIZE;
 232                         if (vec >= NPACKET_R) {
 233                                 writev(fd, wbuf, vec);
 234                                 vec = 0;
 235                         }
 236                 }
 237                 ptr = (u_int32_t *)dv;
 238 next:
 239                 if ((char *)ptr < buf + tlen)
 240                         goto again;
 241                 if (vec > 0)
 242                         writev(fd, wbuf, vec);
 243         }
 244         close(fd);
 245         fprintf(stderr, "\n");
 246         return 0;
 247 }
 248
 249
 250 int
 251 dvsend(int d, char *filename, char ich, int count)
 252 {
 253         struct fw_isochreq isoreq;
 254         struct fw_isobufreq bufreq;
 255         struct dvdbc *dv;
 256         struct fw_pkt *pkt;
 257         int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
 258         int systype=-1, pad_acc, cycle_acc=0, cycle=0, f_cycle, f_frac;
 259         struct iovec wbuf[TNBUF*2 + NEMPTY];
 260         char *pbuf;
 261         u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
 262         struct ciphdr *ciph;
 263         struct timeval start, end;
 264         double rtime;
 265
 266         fd = open(filename, O_RDONLY);
 267         pbuf = (char *)malloc(DSIZE * TNBUF);
 268         bzero(wbuf, sizeof(wbuf));
 269
 270         bufreq.rx.nchunk = 0;
 271         bufreq.rx.npacket = 0;
 272         bufreq.rx.psize = 0;
 273         bufreq.tx.nchunk = NCHUNK;
 274         bufreq.tx.npacket = NPACKET_T;
 275         bufreq.tx.psize = PSIZE;
 276         if (ioctl(d, FW_SSTBUF, &bufreq) < 0) {
 277                 err(1, "ioctl");
 278         }
 279
 280         isoreq.ch = ich & 0x3f;
 281         isoreq.tag = (ich >> 6) & 3;
 282
 283         if( ioctl(d, FW_STSTREAM, &isoreq) < 0)
 284                 err(1, "ioctl");
 285
 286         iso_data = 0;
 287         pkt = (struct fw_pkt *) &iso_data;
 288         pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
 289         pkt->mode.stream.sy = 0;
 290         pkt->mode.stream.tcode = FWTCODE_STREAM;
 291         pkt->mode.stream.chtag = ich;
 292         iso_empty = iso_data;
 293         pkt = (struct fw_pkt *) &iso_empty;
 294         pkt->mode.stream.len = sizeof(struct ciphdr);
 295
 296         bzero(hdr[0], sizeof(hdr[0]));
 297         hdr[0][0] = iso_data;
 298         ciph = (struct ciphdr *)&hdr[0][1];
 299         ciph->src = 0;   /* XXX */
 300         ciph->len = 120;
 301         ciph->dbc = 0;
 302         ciph->eoh1 = 1;
 303         ciph->fdf.dv.cyc = 0xffff;
 304
 305         for (i = 1; i < TNBUF; i++) {
 306                 bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
 307         }
 308
 309         gettimeofday(&start, NULL);
 310 #if DEBUG
 311         fprintf(stderr, "%08x %08x %08x\n",
 312                         htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
 313 #endif
 314         frames = 0;
 315         packets = 0;
 316         pad_acc = 0;
 317         while (1) {
 318                 tlen = 0;
 319                 while (tlen < DSIZE * TNBUF) {
 320                         len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
 321                         if (len <= 0) {
 322                                 if (tlen > 0)
 323                                         break;
 324                                 if (len < 0)
 325                                         warn("read");
 326                                 else
 327                                         printf("\nend of file\n");
 328                                 goto send_end;
 329                         }
 330                         tlen += len;
 331                 }
 332                 vec = 0;
 333                 offset = 0;
 334                 nhdr = 0;
 335 next:
 336                 dv = (struct dvdbc *)(pbuf + offset * DSIZE);
 337 #if 0
 338                 header = (dv->sct == 0 && dv->dseq == 0);
 339 #else
 340                 header = (packets == 0 || packets % npackets[systype] == 0);
 341 #endif
 342
 343                 ciph = (struct ciphdr *)&hdr[nhdr][1];
 344                 if (header) {
 345                         if (systype < 0) {
 346                                 systype = ((dv->payload[0] & DV_DSF_12) != 0);
 347                                 printf("%s\n", system_name[systype]);
 348                                 cycle = 1;
 349                                 cycle_acc = frame_cycle[systype].d * cycle;
 350                         }
 351                         fprintf(stderr, "%d", frames % 10);
 352                         frames ++;
 353                         if (count > 0 && frames > count)
 354                                 break;
 355                         if (frames % frame_rate[systype] == 0)
 356                                 fprintf(stderr, "\n");
 357                         fflush(stderr);
 358                         f_cycle = (cycle_acc / frame_cycle[systype].d) & 0xf;
 359                         f_frac = (cycle_acc % frame_cycle[systype].d
 360                                         * CYCLE_FRAC) / frame_cycle[systype].d;
 361 #if 0
 362                         ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
 363 #else
 364                         ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
 365 #endif
 366                         cycle_acc += frame_cycle[systype].n;
 367                         cycle_acc %= frame_cycle[systype].d * 0x10;
 368
 369                 } else {
 370                         ciph->fdf.dv.cyc = 0xffff;
 371                 }
 372                 ciph->dbc = packets++ % 256;
 373                 pad_acc += pad_rate[systype].n;
 374                 if (pad_acc >= pad_rate[systype].d) {
 375                         pad_acc -= pad_rate[systype].d;
 376                         bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
 377                         hdr[nhdr][0] = iso_empty;
 378                         wbuf[vec].iov_base = (char *)hdr[nhdr];
 379                         wbuf[vec++].iov_len = sizeof(hdr[0]);
 380                         nhdr ++;
 381                         cycle ++;
 382                 }
 383                 hdr[nhdr][0] = iso_data;
 384                 wbuf[vec].iov_base = (char *)hdr[nhdr];
 385                 wbuf[vec++].iov_len = sizeof(hdr[0]);
 386                 wbuf[vec].iov_base = (char *)dv;
 387                 wbuf[vec++].iov_len = DSIZE;
 388                 nhdr ++;
 389                 cycle ++;
 390                 offset ++;
 391                 if (offset * DSIZE < tlen)
 392                         goto next;
 393
 394 again:
 395                 len = writev(d, wbuf, vec);
 396                 if (len < 0) {
 397                         if (errno == EAGAIN) {
 398                                 fprintf(stderr, "(EAGAIN)\n");
 399                                 fflush(stderr);
 400                                 goto again;
 401                         }
 402                         err(1, "write failed");
 403                 }
 404         }
 405         close(fd);
 406         fprintf(stderr, "\n");
 407 send_end:
 408         gettimeofday(&end, NULL);
 409         rtime = end.tv_sec - start.tv_sec
 410                         + (end.tv_usec - start.tv_usec) * 1e-6;
 411         fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
 412                         frames, rtime, frames/rtime);
 413         return 0;
 414 }