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
dvrecv(int d,char * filename,char ich,int count)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
dvsend(int d,char * filename,char ich,int count)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