usr.sbin/fwcontrol/fwdv.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-4-Clause
   3  *
   4  * Copyright (C) 2003
   5  *      Hidetoshi Shimokawa. All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. All advertising materials mentioning features or use of this software
  16  *    must display the following acknowledgement:
  17  *
  18  *      This product includes software developed by Hidetoshi Shimokawa.
  19  *
  20  * 4. Neither the name of the author nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * $FreeBSD$
  37  */
  38 #include <sys/param.h>
  39 #include <sys/ioctl.h>
  40 #include <sys/time.h>
  41 #include <sys/types.h>
  42 #include <sys/uio.h>
  43 #include <arpa/inet.h>
  44 #include <err.h>
  45 #include <errno.h>
  46 #include <unistd.h>
  47 #include <fcntl.h>
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 #include <string.h>
  51 #include <sysexits.h>
  52
  53 #include <dev/firewire/firewire.h>
  54 #include <dev/firewire/iec68113.h>
  55
  56 #include "fwmethods.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 64
  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 void
  93 dvrecv(int d, const 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         if(strcmp(filename, "-") == 0) {
 107                 fd = STDOUT_FILENO;
 108         } else {
 109                 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
 110                 if (fd == -1)
 111                         err(EX_NOINPUT, "%s", filename);
 112         }
 113         buf = malloc(RBUFSIZE);
 114         pad = malloc(DSIZE*MAXBLOCKS);
 115         memset(pad, 0xff, DSIZE*MAXBLOCKS);
 116         bzero(wbuf, sizeof(wbuf));
 117
 118         bufreq.rx.nchunk = NCHUNK;
 119         bufreq.rx.npacket = NPACKET_R;
 120         bufreq.rx.psize = PSIZE;
 121         bufreq.tx.nchunk = 0;
 122         bufreq.tx.npacket = 0;
 123         bufreq.tx.psize = 0;
 124         if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
 125                 err(1, "ioctl FW_SSTBUF");
 126
 127         isoreq.ch = ich & 0x3f;
 128         isoreq.tag = (ich >> 6) & 3;
 129
 130         if (ioctl(d, FW_SRSTREAM, &isoreq) < 0)
 131                 err(1, "ioctl");
 132
 133         k = m = 0;
 134         while (count <= 0 || k <= count) {
 135 #if 0
 136                 tlen = 0;
 137                 while ((len = read(d, buf + tlen, PSIZE
 138                                                 /* RBUFSIZE - tlen */)) > 0) {
 139                         if (len < 0) {
 140                                 if (errno == EAGAIN) {
 141                                         fprintf(stderr, "(EAGAIN)\n");
 142                                         fflush(stderr);
 143                                         if (len <= 0)
 144                                                 continue;
 145                                 } else
 146                                         err(1, "read failed");
 147                         }
 148                         tlen += len;
 149                         if ((RBUFSIZE - tlen) < PSIZE)
 150                                 break;
 151                 };
 152 #else
 153                 tlen = len = read(d, buf, RBUFSIZE);
 154                 if (len < 0) {
 155                         if (errno == EAGAIN) {
 156                                 fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
 157                                 fflush(stderr);
 158                                 if (len <= 0)
 159                                         continue;
 160                         } else
 161                                 err(1, "read failed");
 162                 }
 163 #endif
 164                 vec = 0;
 165                 ptr = (u_int32_t *) buf;
 166 again:
 167                 pkt = (struct fw_pkt *) ptr;
 168 #if DEBUG
 169                 fprintf(stderr, "%08x %08x %08x %08x\n",
 170                         htonl(ptr[0]), htonl(ptr[1]),
 171                         htonl(ptr[2]), htonl(ptr[3]));
 172 #endif
 173                 ciph = (struct ciphdr *)(ptr + 1);      /* skip iso header */
 174                 if (ciph->fmt != CIP_FMT_DVCR)
 175                         errx(1, "unknown format 0x%x", ciph->fmt);
 176                 ptr = (u_int32_t *) (ciph + 1);         /* skip cip header */
 177 #if DEBUG
 178                 if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
 179                         fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
 180                 }
 181 #endif
 182                 if (pkt->mode.stream.len <= sizeof(struct ciphdr))
 183                         /* no payload */
 184                         goto next;
 185                 for (dv = (struct dvdbc *)ptr;
 186                                 (char *)dv < (char *)(ptr + ciph->len);
 187                                 dv+=6) {
 188
 189 #if DEBUG
 190                         fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
 191 #endif
 192                         if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
 193                                 if (system < 0) {
 194                                         system = ciph->fdf.dv.fs;
 195                                         fprintf(stderr, "%s\n", system_name[system]);
 196                                 }
 197
 198                                 /* Fix DSF bit */
 199                                 if (system == 1 &&
 200                                         (dv->payload[0] & DV_DSF_12) == 0)
 201                                         dv->payload[0] |= DV_DSF_12;
 202                                 nb = nblocks[system];
 203                                 fprintf(stderr, "%d:%02d:%02d %d\r",
 204                                         k / (3600 * frame_rate[system]),
 205                                         (k / (60 * frame_rate[system])) % 60,
 206                                         (k / frame_rate[system]) % 60,
 207                                         k % frame_rate[system]);
 208
 209 #if FIX_FRAME
 210                                 if (m > 0 && m != nb) {
 211                                         /* padding bad frame */
 212                                         npad = ((nb - m) % nb);
 213                                         if (npad < 0)
 214                                                 npad += nb;
 215                                         fprintf(stderr, "\n%d blocks padded\n",
 216                                             npad);
 217                                         npad *= DSIZE;
 218                                         wbuf[vec].iov_base = pad;
 219                                         wbuf[vec++].iov_len = npad;
 220                                         if (vec >= NPACKET_R) {
 221                                                 writev(fd, wbuf, vec);
 222                                                 vec = 0;
 223                                         }
 224                                 }
 225 #endif
 226                                 k++;
 227                                 fflush(stderr);
 228                                 m = 0;
 229                         }
 230                         if (k == 0 || (count > 0 && k > count))
 231                                 continue;
 232                         m++;
 233                         wbuf[vec].iov_base = (char *) dv;
 234                         wbuf[vec++].iov_len = DSIZE;
 235                         if (vec >= NPACKET_R) {
 236                                 writev(fd, wbuf, vec);
 237                                 vec = 0;
 238                         }
 239                 }
 240                 ptr = (u_int32_t *)dv;
 241 next:
 242                 if ((char *)ptr < buf + tlen)
 243                         goto again;
 244                 if (vec > 0)
 245                         writev(fd, wbuf, vec);
 246         }
 247         if (fd != STDOUT_FILENO)
 248                 close(fd);
 249         fprintf(stderr, "\n");
 250 }
 251
 252
 253 void
 254 dvsend(int d, const char *filename, char ich, int count)
 255 {
 256         struct fw_isochreq isoreq;
 257         struct fw_isobufreq bufreq;
 258         struct dvdbc *dv;
 259         struct fw_pkt *pkt;
 260         int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
 261         int system=-1, pad_acc, cycle_acc, cycle, f_frac;
 262         struct iovec wbuf[TNBUF*2 + NEMPTY];
 263         char *pbuf;
 264         u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
 265         struct ciphdr *ciph;
 266         struct timeval start, end;
 267         double rtime;
 268
 269         fd = open(filename, O_RDONLY);
 270         if (fd == -1)
 271                 err(EX_NOINPUT, "%s", filename);
 272
 273         pbuf = malloc(DSIZE * TNBUF);
 274         bzero(wbuf, sizeof(wbuf));
 275
 276         bufreq.rx.nchunk = 0;
 277         bufreq.rx.npacket = 0;
 278         bufreq.rx.psize = 0;
 279         bufreq.tx.nchunk = NCHUNK;
 280         bufreq.tx.npacket = NPACKET_T;
 281         bufreq.tx.psize = PSIZE;
 282         if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
 283                 err(1, "ioctl FW_SSTBUF");
 284
 285         isoreq.ch = ich & 0x3f;
 286         isoreq.tag = (ich >> 6) & 3;
 287
 288         if (ioctl(d, FW_STSTREAM, &isoreq) < 0)
 289                 err(1, "ioctl FW_STSTREAM");
 290
 291         iso_data = 0;
 292         pkt = (struct fw_pkt *) &iso_data;
 293         pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
 294         pkt->mode.stream.sy = 0;
 295         pkt->mode.stream.tcode = FWTCODE_STREAM;
 296         pkt->mode.stream.chtag = ich;
 297         iso_empty = iso_data;
 298         pkt = (struct fw_pkt *) &iso_empty;
 299         pkt->mode.stream.len = sizeof(struct ciphdr);
 300
 301         bzero(hdr[0], sizeof(hdr[0]));
 302         hdr[0][0] = iso_data;
 303         ciph = (struct ciphdr *)&hdr[0][1];
 304         ciph->src = 0;   /* XXX */
 305         ciph->len = 120;
 306         ciph->dbc = 0;
 307         ciph->eoh1 = 1;
 308         ciph->fdf.dv.cyc = 0xffff;
 309
 310         for (i = 1; i < TNBUF; i++)
 311                 bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
 312
 313         gettimeofday(&start, NULL);
 314 #if DEBUG
 315         fprintf(stderr, "%08x %08x %08x\n",
 316                         htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
 317 #endif
 318         frames = 0;
 319         packets = 0;
 320         pad_acc = 0;
 321         while (1) {
 322                 tlen = 0;
 323                 while (tlen < DSIZE * TNBUF) {
 324                         len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
 325                         if (len <= 0) {
 326                                 if (tlen > 0)
 327                                         break;
 328                                 if (len < 0)
 329                                         warn("read");
 330                                 else
 331                                         fprintf(stderr, "\nend of file\n");
 332                                 goto send_end;
 333                         }
 334                         tlen += len;
 335                 }
 336                 vec = 0;
 337                 offset = 0;
 338                 nhdr = 0;
 339 next:
 340                 dv = (struct dvdbc *)(pbuf + offset * DSIZE);
 341 #if 0
 342                 header = (dv->sct == 0 && dv->dseq == 0);
 343 #else
 344                 header = (packets == 0 || packets % npackets[system] == 0);
 345 #endif
 346
 347                 ciph = (struct ciphdr *)&hdr[nhdr][1];
 348                 if (header) {
 349                         if (system < 0) {
 350                                 system = ((dv->payload[0] & DV_DSF_12) != 0);
 351                                 printf("%s\n", system_name[system]);
 352                                 cycle = 1;
 353                                 cycle_acc = frame_cycle[system].d * cycle;
 354                         }
 355                         fprintf(stderr, "%d", frames % 10);
 356                         frames ++;
 357                         if (count > 0 && frames > count)
 358                                 break;
 359                         if (frames % frame_rate[system] == 0)
 360                                 fprintf(stderr, "\n");
 361                         fflush(stderr);
 362                         f_frac = (cycle_acc % frame_cycle[system].d
 363                                         * CYCLE_FRAC) / frame_cycle[system].d;
 364 #if 0
 365                         int f_cycle;
 366                         f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf;
 367                         ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
 368 #else
 369                         ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
 370 #endif
 371                         cycle_acc += frame_cycle[system].n;
 372                         cycle_acc %= frame_cycle[system].d * 0x10;
 373
 374                 } else {
 375                         ciph->fdf.dv.cyc = 0xffff;
 376                 }
 377                 ciph->dbc = packets++ % 256;
 378                 pad_acc += pad_rate[system].n;
 379                 if (pad_acc >= pad_rate[system].d) {
 380                         pad_acc -= pad_rate[system].d;
 381                         bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
 382                         hdr[nhdr][0] = iso_empty;
 383                         wbuf[vec].iov_base = (char *)hdr[nhdr];
 384                         wbuf[vec++].iov_len = sizeof(hdr[0]);
 385                         nhdr ++;
 386                         cycle ++;
 387                 }
 388                 hdr[nhdr][0] = iso_data;
 389                 wbuf[vec].iov_base = (char *)hdr[nhdr];
 390                 wbuf[vec++].iov_len = sizeof(hdr[0]);
 391                 wbuf[vec].iov_base = (char *)dv;
 392                 wbuf[vec++].iov_len = DSIZE;
 393                 nhdr ++;
 394                 cycle ++;
 395                 offset ++;
 396                 if (offset * DSIZE < tlen)
 397                         goto next;
 398
 399 again:
 400                 len = writev(d, wbuf, vec);
 401                 if (len < 0) {
 402                         if (errno == EAGAIN) {
 403                                 fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
 404                                 goto again;
 405                         }
 406                         err(1, "write failed");
 407                 }
 408         }
 409         fprintf(stderr, "\n");
 410 send_end:
 411         gettimeofday(&end, NULL);
 412         rtime = end.tv_sec - start.tv_sec
 413                         + (end.tv_usec - start.tv_usec) * 1e-6;
 414         fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
 415                         frames, rtime, frames/rtime);
 416         close(fd);
 417 }