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 #include <err.h> 44 #include <errno.h> 45 #include <unistd.h> 46 #include <fcntl.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include <bus/firewire/firewire.h> 52 #include <bus/firewire/iec68113.h> 53 54 #define DEBUG 0 55 #define FIX_FRAME 1 56 57 struct frac { 58 int n,d; 59 }; 60 61 struct frac frame_cycle[2] = { 62 {8000*100, 2997}, /* NTSC 8000 cycle / 29.97 Hz */ 63 {320, 1}, /* PAL 8000 cycle / 25 Hz */ 64 }; 65 int npackets[] = { 66 250 /* NTSC */, 67 300 /* PAL */ 68 }; 69 struct frac pad_rate[2] = { 70 {203, 2997}, /* = (8000 - 29.97 * 250)/(29.97 * 250) */ 71 {1, 15}, /* = (8000 - 25 * 300)/(25 * 300) */ 72 }; 73 const char *system_name[] = {"NTSC", "PAL"}; 74 int frame_rate[] = {30, 25}; 75 76 #define PSIZE 512 77 #define DSIZE 480 78 #define NCHUNK 8 79 80 #define NPACKET_R 256 81 #define NPACKET_T 255 82 #define TNBUF 100 /* XXX too large value causes block noise */ 83 #define NEMPTY 10 /* depends on TNBUF */ 84 #define RBUFSIZE (PSIZE * NPACKET_R) 85 #define MAXBLOCKS (300) 86 #define CYCLE_FRAC 0xc00 87 88 int dvrecv(int, char *, char, int); 89 int dvsend(int, char *, char, int); 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, systype = -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 (systype < 0) { 188 systype = ciph->fdf.dv.fs; 189 printf("%s\n", system_name[systype]); 190 } 191 192 /* Fix DSF bit */ 193 if (systype == 1 && 194 (dv->payload[0] & DV_DSF_12) == 0) 195 dv->payload[0] |= DV_DSF_12; 196 nb = nblocks[systype]; 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[systype] == 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 systype=-1, pad_acc, cycle_acc=0, cycle=0, 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 #if 0 262 int f_cycle; 263 #endif 264 265 fd = open(filename, O_RDONLY); 266 pbuf = (char *)malloc(DSIZE * TNBUF); 267 bzero(wbuf, sizeof(wbuf)); 268 269 bufreq.rx.nchunk = 0; 270 bufreq.rx.npacket = 0; 271 bufreq.rx.psize = 0; 272 bufreq.tx.nchunk = NCHUNK; 273 bufreq.tx.npacket = NPACKET_T; 274 bufreq.tx.psize = PSIZE; 275 if (ioctl(d, FW_SSTBUF, &bufreq) < 0) { 276 err(1, "ioctl"); 277 } 278 279 isoreq.ch = ich & 0x3f; 280 isoreq.tag = (ich >> 6) & 3; 281 282 if( ioctl(d, FW_STSTREAM, &isoreq) < 0) 283 err(1, "ioctl"); 284 285 iso_data = 0; 286 pkt = (struct fw_pkt *) &iso_data; 287 pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr); 288 pkt->mode.stream.sy = 0; 289 pkt->mode.stream.tcode = FWTCODE_STREAM; 290 pkt->mode.stream.chtag = ich; 291 iso_empty = iso_data; 292 pkt = (struct fw_pkt *) &iso_empty; 293 pkt->mode.stream.len = sizeof(struct ciphdr); 294 295 bzero(hdr[0], sizeof(hdr[0])); 296 hdr[0][0] = iso_data; 297 ciph = (struct ciphdr *)&hdr[0][1]; 298 ciph->src = 0; /* XXX */ 299 ciph->len = 120; 300 ciph->dbc = 0; 301 ciph->eoh1 = 1; 302 ciph->fdf.dv.cyc = 0xffff; 303 304 for (i = 1; i < TNBUF; i++) { 305 bcopy(hdr[0], hdr[i], sizeof(hdr[0])); 306 } 307 308 gettimeofday(&start, NULL); 309 #if DEBUG 310 fprintf(stderr, "%08x %08x %08x\n", 311 htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2])); 312 #endif 313 frames = 0; 314 packets = 0; 315 pad_acc = 0; 316 while (1) { 317 tlen = 0; 318 while (tlen < DSIZE * TNBUF) { 319 len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen); 320 if (len <= 0) { 321 if (tlen > 0) 322 break; 323 if (len < 0) 324 warn("read"); 325 else 326 printf("\nend of file\n"); 327 goto send_end; 328 } 329 tlen += len; 330 } 331 vec = 0; 332 offset = 0; 333 nhdr = 0; 334 next: 335 dv = (struct dvdbc *)(pbuf + offset * DSIZE); 336 #if 0 337 header = (dv->sct == 0 && dv->dseq == 0); 338 #else 339 header = (packets == 0 || packets % npackets[systype] == 0); 340 #endif 341 342 ciph = (struct ciphdr *)&hdr[nhdr][1]; 343 if (header) { 344 if (systype < 0) { 345 systype = ((dv->payload[0] & DV_DSF_12) != 0); 346 printf("%s\n", system_name[systype]); 347 cycle = 1; 348 cycle_acc = frame_cycle[systype].d * cycle; 349 } 350 fprintf(stderr, "%d", frames % 10); 351 frames ++; 352 if (count > 0 && frames > count) 353 break; 354 if (frames % frame_rate[systype] == 0) 355 fprintf(stderr, "\n"); 356 fflush(stderr); 357 #if 0 358 f_cycle = (cycle_acc / frame_cycle[systype].d) & 0xf; 359 #endif 360 f_frac = (cycle_acc % frame_cycle[systype].d 361 * CYCLE_FRAC) / frame_cycle[systype].d; 362 #if 0 363 ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac); 364 #else 365 ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac); 366 #endif 367 cycle_acc += frame_cycle[systype].n; 368 cycle_acc %= frame_cycle[systype].d * 0x10; 369 370 } else { 371 ciph->fdf.dv.cyc = 0xffff; 372 } 373 ciph->dbc = packets++ % 256; 374 pad_acc += pad_rate[systype].n; 375 if (pad_acc >= pad_rate[systype].d) { 376 pad_acc -= pad_rate[systype].d; 377 bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0])); 378 hdr[nhdr][0] = iso_empty; 379 wbuf[vec].iov_base = (char *)hdr[nhdr]; 380 wbuf[vec++].iov_len = sizeof(hdr[0]); 381 nhdr ++; 382 cycle ++; 383 } 384 hdr[nhdr][0] = iso_data; 385 wbuf[vec].iov_base = (char *)hdr[nhdr]; 386 wbuf[vec++].iov_len = sizeof(hdr[0]); 387 wbuf[vec].iov_base = (char *)dv; 388 wbuf[vec++].iov_len = DSIZE; 389 nhdr ++; 390 cycle ++; 391 offset ++; 392 if (offset * DSIZE < tlen) 393 goto next; 394 395 again: 396 len = writev(d, wbuf, vec); 397 if (len < 0) { 398 if (errno == EAGAIN) { 399 fprintf(stderr, "(EAGAIN)\n"); 400 fflush(stderr); 401 goto again; 402 } 403 err(1, "write failed"); 404 } 405 } 406 close(fd); 407 fprintf(stderr, "\n"); 408 send_end: 409 gettimeofday(&end, NULL); 410 rtime = end.tv_sec - start.tv_sec 411 + (end.tv_usec - start.tv_usec) * 1e-6; 412 fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n", 413 frames, rtime, frames/rtime); 414 return 0; 415 } 416