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
  44 #if __FreeBSD_version >= 500000
  45 #include <arpa/inet.h>
  46 #endif
  47
  48 #include <err.h>
  49 #include <errno.h>
  50 #include <unistd.h>
  51 #include <fcntl.h>
  52 #include <stdio.h>
  53 #include <stdlib.h>
  54 #include <string.h>
  55 #include <sysexits.h>
  56
  57 #include <dev/firewire/firewire.h>
  58 #include <dev/firewire/iec68113.h>
  59
  60 #include "fwmethods.h"
  61
  62 #define DEBUG           0
  63 #define FIX_FRAME       1
  64
  65 struct frac {
  66         int n,d;
  67 };
  68
  69 struct frac frame_cycle[2]  = {
  70         {8000*100, 2997},       /* NTSC 8000 cycle / 29.97 Hz */
  71         {320, 1},               /* PAL  8000 cycle / 25 Hz */
  72 };
  73 int npackets[] = {
  74         250             /* NTSC */,
  75         300             /* PAL */
  76 };
  77 struct frac pad_rate[2]  = {
  78         {203, 2997},    /* = (8000 - 29.97 * 250)/(29.97 * 250) */
  79         {1, 15},        /* = (8000 - 25 * 300)/(25 * 300) */
  80 };
  81 char *system_name[] = {"NTSC", "PAL"};
  82 int frame_rate[] = {30, 25};
  83
  84 #define PSIZE 512
  85 #define DSIZE 480
  86 #define NCHUNK 64
  87
  88 #define NPACKET_R 256
  89 #define NPACKET_T 255
  90 #define TNBUF 100       /* XXX too large value causes block noise */
  91 #define NEMPTY 10       /* depends on TNBUF */
  92 #define RBUFSIZE (PSIZE * NPACKET_R)
  93 #define MAXBLOCKS (300)
  94 #define CYCLE_FRAC 0xc00
  95
  96 void
  97 dvrecv(int d, const char *filename, char ich, int count)
  98 {
  99         struct fw_isochreq isoreq;
 100         struct fw_isobufreq bufreq;
 101         struct dvdbc *dv;
 102         struct ciphdr *ciph;
 103         struct fw_pkt *pkt;
 104         char *pad, *buf;
 105         u_int32_t *ptr;
 106         int len, tlen, npad, fd, k, m, vec, system = -1, nb;
 107         int nblocks[] = {250 /* NTSC */, 300 /* PAL */};
 108         struct iovec wbuf[NPACKET_R];
 109
 110         if(strcmp(filename, "-") == 0) {
 111                 fd = STDOUT_FILENO;
 112         } else {
 113                 fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
 114                 if (fd == -1)
 115                         err(EX_NOINPUT, "%s", filename);
 116         }
 117         buf = malloc(RBUFSIZE);
 118         pad = malloc(DSIZE*MAXBLOCKS);
 119         memset(pad, 0xff, DSIZE*MAXBLOCKS);
 120         bzero(wbuf, sizeof(wbuf));
 121
 122         bufreq.rx.nchunk = NCHUNK;
 123         bufreq.rx.npacket = NPACKET_R;
 124         bufreq.rx.psize = PSIZE;
 125         bufreq.tx.nchunk = 0;
 126         bufreq.tx.npacket = 0;
 127         bufreq.tx.psize = 0;
 128         if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
 129                 err(1, "ioctl FW_SSTBUF");
 130
 131         isoreq.ch = ich & 0x3f;
 132         isoreq.tag = (ich >> 6) & 3;
 133
 134         if (ioctl(d, FW_SRSTREAM, &isoreq) < 0)
 135                 err(1, "ioctl");
 136
 137         k = m = 0;
 138         while (count <= 0 || k <= count) {
 139 #if 0
 140                 tlen = 0;
 141                 while ((len = read(d, buf + tlen, PSIZE
 142                                                 /* RBUFSIZE - tlen */)) > 0) {
 143                         if (len < 0) {
 144                                 if (errno == EAGAIN) {
 145                                         fprintf(stderr, "(EAGAIN)\n");
 146                                         fflush(stderr);
 147                                         if (len <= 0)
 148                                                 continue;
 149                                 } else
 150                                         err(1, "read failed");
 151                         }
 152                         tlen += len;
 153                         if ((RBUFSIZE - tlen) < PSIZE)
 154                                 break;
 155                 };
 156 #else
 157                 tlen = len = read(d, buf, RBUFSIZE);
 158                 if (len < 0) {
 159                         if (errno == EAGAIN) {
 160                                 fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
 161                                 fflush(stderr);
 162                                 if (len <= 0)
 163                                         continue;
 164                         } else
 165                                 err(1, "read failed");
 166                 }
 167 #endif
 168                 vec = 0;
 169                 ptr = (u_int32_t *) buf;
 170 again:
 171                 pkt = (struct fw_pkt *) ptr;
 172 #if DEBUG
 173                 fprintf(stderr, "%08x %08x %08x %08x\n",
 174                         htonl(ptr[0]), htonl(ptr[1]),
 175                         htonl(ptr[2]), htonl(ptr[3]));
 176 #endif
 177                 ciph = (struct ciphdr *)(ptr + 1);      /* skip iso header */
 178                 if (ciph->fmt != CIP_FMT_DVCR)
 179                         errx(1, "unknown format 0x%x", ciph->fmt);
 180                 ptr = (u_int32_t *) (ciph + 1);         /* skip cip header */
 181 #if DEBUG
 182                 if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
 183                         fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
 184                 }
 185 #endif
 186                 if (pkt->mode.stream.len <= sizeof(struct ciphdr))
 187                         /* no payload */
 188                         goto next;
 189                 for (dv = (struct dvdbc *)ptr;
 190                                 (char *)dv < (char *)(ptr + ciph->len);
 191                                 dv+=6) {
 192
 193 #if DEBUG
 194                         fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
 195 #endif
 196                         if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
 197                                 if (system < 0) {
 198                                         system = ciph->fdf.dv.fs;
 199                                         fprintf(stderr, "%s\n", system_name[system]);
 200                                 }
 201
 202                                 /* Fix DSF bit */
 203                                 if (system == 1 &&
 204                                         (dv->payload[0] & DV_DSF_12) == 0)
 205                                         dv->payload[0] |= DV_DSF_12;
 206                                 nb = nblocks[system];
 207                                 fprintf(stderr, "%d:%02d:%02d %d\r",
 208                                         k / (3600 * frame_rate[system]),
 209                                         (k / (60 * frame_rate[system])) % 60,
 210                                         (k / frame_rate[system]) % 60,
 211                                         k % frame_rate[system]);
 212
 213 #if FIX_FRAME
 214                                 if (m > 0 && m != nb) {
 215                                         /* padding bad frame */
 216                                         npad = ((nb - m) % nb);
 217                                         if (npad < 0)
 218                                                 npad += nb;
 219                                         fprintf(stderr, "\n%d blocks padded\n",
 220                                             npad);
 221                                         npad *= DSIZE;
 222                                         wbuf[vec].iov_base = pad;
 223                                         wbuf[vec++].iov_len = npad;
 224                                         if (vec >= NPACKET_R) {
 225                                                 writev(fd, wbuf, vec);
 226                                                 vec = 0;
 227                                         }
 228                                 }
 229 #endif
 230                                 k++;
 231                                 fflush(stderr);
 232                                 m = 0;
 233                         }
 234                         if (k == 0 || (count > 0 && k > count))
 235                                 continue;
 236                         m++;
 237                         wbuf[vec].iov_base = (char *) dv;
 238                         wbuf[vec++].iov_len = DSIZE;
 239                         if (vec >= NPACKET_R) {
 240                                 writev(fd, wbuf, vec);
 241                                 vec = 0;
 242                         }
 243                 }
 244                 ptr = (u_int32_t *)dv;
 245 next:
 246                 if ((char *)ptr < buf + tlen)
 247                         goto again;
 248                 if (vec > 0)
 249                         writev(fd, wbuf, vec);
 250         }
 251         if (fd != STDOUT_FILENO)
 252                 close(fd);
 253         fprintf(stderr, "\n");
 254 }
 255
 256
 257 void
 258 dvsend(int d, const char *filename, char ich, int count)
 259 {
 260         struct fw_isochreq isoreq;
 261         struct fw_isobufreq bufreq;
 262         struct dvdbc *dv;
 263         struct fw_pkt *pkt;
 264         int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
 265         int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac;
 266         struct iovec wbuf[TNBUF*2 + NEMPTY];
 267         char *pbuf;
 268         u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
 269         struct ciphdr *ciph;
 270         struct timeval start, end;
 271         double rtime;
 272
 273         fd = open(filename, O_RDONLY);
 274         if (fd == -1)
 275                 err(EX_NOINPUT, "%s", filename);
 276
 277         pbuf = malloc(DSIZE * TNBUF);
 278         bzero(wbuf, sizeof(wbuf));
 279
 280         bufreq.rx.nchunk = 0;
 281         bufreq.rx.npacket = 0;
 282         bufreq.rx.psize = 0;
 283         bufreq.tx.nchunk = NCHUNK;
 284         bufreq.tx.npacket = NPACKET_T;
 285         bufreq.tx.psize = PSIZE;
 286         if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
 287                 err(1, "ioctl FW_SSTBUF");
 288
 289         isoreq.ch = ich & 0x3f;
 290         isoreq.tag = (ich >> 6) & 3;
 291
 292         if (ioctl(d, FW_STSTREAM, &isoreq) < 0)
 293                 err(1, "ioctl FW_STSTREAM");
 294
 295         iso_data = 0;
 296         pkt = (struct fw_pkt *) &iso_data;
 297         pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
 298         pkt->mode.stream.sy = 0;
 299         pkt->mode.stream.tcode = FWTCODE_STREAM;
 300         pkt->mode.stream.chtag = ich;
 301         iso_empty = iso_data;
 302         pkt = (struct fw_pkt *) &iso_empty;
 303         pkt->mode.stream.len = sizeof(struct ciphdr);
 304
 305         bzero(hdr[0], sizeof(hdr[0]));
 306         hdr[0][0] = iso_data;
 307         ciph = (struct ciphdr *)&hdr[0][1];
 308         ciph->src = 0;   /* XXX */
 309         ciph->len = 120;
 310         ciph->dbc = 0;
 311         ciph->eoh1 = 1;
 312         ciph->fdf.dv.cyc = 0xffff;
 313
 314         for (i = 1; i < TNBUF; i++)
 315                 bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
 316
 317         gettimeofday(&start, NULL);
 318 #if DEBUG
 319         fprintf(stderr, "%08x %08x %08x\n",
 320                         htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
 321 #endif
 322         frames = 0;
 323         packets = 0;
 324         pad_acc = 0;
 325         while (1) {
 326                 tlen = 0;
 327                 while (tlen < DSIZE * TNBUF) {
 328                         len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
 329                         if (len <= 0) {
 330                                 if (tlen > 0)
 331                                         break;
 332                                 if (len < 0)
 333                                         warn("read");
 334                                 else
 335                                         fprintf(stderr, "\nend of file\n");
 336                                 goto send_end;
 337                         }
 338                         tlen += len;
 339                 }
 340                 vec = 0;
 341                 offset = 0;
 342                 nhdr = 0;
 343 next:
 344                 dv = (struct dvdbc *)(pbuf + offset * DSIZE);
 345 #if 0
 346                 header = (dv->sct == 0 && dv->dseq == 0);
 347 #else
 348                 header = (packets == 0 || packets % npackets[system] == 0);
 349 #endif
 350
 351                 ciph = (struct ciphdr *)&hdr[nhdr][1];
 352                 if (header) {
 353                         if (system < 0) {
 354                                 system = ((dv->payload[0] & DV_DSF_12) != 0);
 355                                 printf("%s\n", system_name[system]);
 356                                 cycle = 1;
 357                                 cycle_acc = frame_cycle[system].d * cycle;
 358                         }
 359                         fprintf(stderr, "%d", frames % 10);
 360                         frames ++;
 361                         if (count > 0 && frames > count)
 362                                 break;
 363                         if (frames % frame_rate[system] == 0)
 364                                 fprintf(stderr, "\n");
 365                         fflush(stderr);
 366                         f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf;
 367                         f_frac = (cycle_acc % frame_cycle[system].d
 368                                         * CYCLE_FRAC) / frame_cycle[system].d;
 369 #if 0
 370                         ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
 371 #else
 372                         ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
 373 #endif
 374                         cycle_acc += frame_cycle[system].n;
 375                         cycle_acc %= frame_cycle[system].d * 0x10;
 376
 377                 } else {
 378                         ciph->fdf.dv.cyc = 0xffff;
 379                 }
 380                 ciph->dbc = packets++ % 256;
 381                 pad_acc += pad_rate[system].n;
 382                 if (pad_acc >= pad_rate[system].d) {
 383                         pad_acc -= pad_rate[system].d;
 384                         bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
 385                         hdr[nhdr][0] = iso_empty;
 386                         wbuf[vec].iov_base = (char *)hdr[nhdr];
 387                         wbuf[vec++].iov_len = sizeof(hdr[0]);
 388                         nhdr ++;
 389                         cycle ++;
 390                 }
 391                 hdr[nhdr][0] = iso_data;
 392                 wbuf[vec].iov_base = (char *)hdr[nhdr];
 393                 wbuf[vec++].iov_len = sizeof(hdr[0]);
 394                 wbuf[vec].iov_base = (char *)dv;
 395                 wbuf[vec++].iov_len = DSIZE;
 396                 nhdr ++;
 397                 cycle ++;
 398                 offset ++;
 399                 if (offset * DSIZE < tlen)
 400                         goto next;
 401
 402 again:
 403                 len = writev(d, wbuf, vec);
 404                 if (len < 0) {
 405                         if (errno == EAGAIN) {
 406                                 fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
 407                                 goto again;
 408                         }
 409                         err(1, "write failed");
 410                 }
 411         }
 412         fprintf(stderr, "\n");
 413 send_end:
 414         gettimeofday(&end, NULL);
 415         rtime = end.tv_sec - start.tv_sec
 416                         + (end.tv_usec - start.tv_usec) * 1e-6;
 417         fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
 418                         frames, rtime, frames/rtime);
 419         close(fd);
 420 }