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: releng/10.3/usr.sbin/fwcontrol/fwdv.c 216948 2011-01-04 02:52:22Z emaste $
35 */
36#include <sys/param.h>
37#include <sys/ioctl.h>
38#include <sys/time.h>
39#include <sys/types.h>
40#include <sys/uio.h>
41
42#if __FreeBSD_version >= 500000
43#include <arpa/inet.h>
44#endif
45
46#include <err.h>
47#include <errno.h>
48#include <unistd.h>
49#include <fcntl.h>
50#include <stdio.h>
51#include <stdlib.h>
52#include <string.h>
53#include <sysexits.h>
54
55#include <dev/firewire/firewire.h>
56#include <dev/firewire/iec68113.h>
57
58#include "fwmethods.h"
59
60#define DEBUG		0
61#define FIX_FRAME	1
62
63struct frac {
64	int n,d;
65};
66
67struct frac frame_cycle[2]  = {
68	{8000*100, 2997},	/* NTSC 8000 cycle / 29.97 Hz */
69	{320, 1},		/* PAL  8000 cycle / 25 Hz */
70};
71int npackets[] = {
72	250		/* NTSC */,
73	300		/* PAL */
74};
75struct frac pad_rate[2]  = {
76	{203, 2997},	/* = (8000 - 29.97 * 250)/(29.97 * 250) */
77	{1, 15},	/* = (8000 - 25 * 300)/(25 * 300) */
78};
79char *system_name[] = {"NTSC", "PAL"};
80int frame_rate[] = {30, 25};
81
82#define PSIZE 512
83#define DSIZE 480
84#define NCHUNK 64
85
86#define NPACKET_R 256
87#define NPACKET_T 255
88#define TNBUF 100	/* XXX too large value causes block noise */
89#define NEMPTY 10	/* depends on TNBUF */
90#define RBUFSIZE (PSIZE * NPACKET_R)
91#define MAXBLOCKS (300)
92#define CYCLE_FRAC 0xc00
93
94void
95dvrecv(int d, const char *filename, char ich, int count)
96{
97	struct fw_isochreq isoreq;
98	struct fw_isobufreq bufreq;
99	struct dvdbc *dv;
100	struct ciphdr *ciph;
101	struct fw_pkt *pkt;
102	char *pad, *buf;
103	u_int32_t *ptr;
104	int len, tlen, npad, fd, k, m, vec, system = -1, nb;
105	int nblocks[] = {250 /* NTSC */, 300 /* PAL */};
106	struct iovec wbuf[NPACKET_R];
107
108	if(strcmp(filename, "-") == 0) {
109		fd = STDOUT_FILENO;
110	} else {
111		fd = open(filename, O_CREAT | O_WRONLY | O_TRUNC, 0660);
112		if (fd == -1)
113			err(EX_NOINPUT, "%s", filename);
114	}
115	buf = malloc(RBUFSIZE);
116	pad = malloc(DSIZE*MAXBLOCKS);
117	memset(pad, 0xff, DSIZE*MAXBLOCKS);
118	bzero(wbuf, sizeof(wbuf));
119
120	bufreq.rx.nchunk = NCHUNK;
121	bufreq.rx.npacket = NPACKET_R;
122	bufreq.rx.psize = PSIZE;
123	bufreq.tx.nchunk = 0;
124	bufreq.tx.npacket = 0;
125	bufreq.tx.psize = 0;
126	if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
127		err(1, "ioctl FW_SSTBUF");
128
129	isoreq.ch = ich & 0x3f;
130	isoreq.tag = (ich >> 6) & 3;
131
132	if (ioctl(d, FW_SRSTREAM, &isoreq) < 0)
133       		err(1, "ioctl");
134
135	k = m = 0;
136	while (count <= 0 || k <= count) {
137#if 0
138		tlen = 0;
139		while ((len = read(d, buf + tlen, PSIZE
140						/* RBUFSIZE - tlen */)) > 0) {
141			if (len < 0) {
142				if (errno == EAGAIN) {
143					fprintf(stderr, "(EAGAIN)\n");
144					fflush(stderr);
145					if (len <= 0)
146						continue;
147				} else
148					err(1, "read failed");
149			}
150			tlen += len;
151			if ((RBUFSIZE - tlen) < PSIZE)
152				break;
153		};
154#else
155		tlen = len = read(d, buf, RBUFSIZE);
156		if (len < 0) {
157			if (errno == EAGAIN) {
158				fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
159				fflush(stderr);
160				if (len <= 0)
161					continue;
162			} else
163				err(1, "read failed");
164		}
165#endif
166		vec = 0;
167		ptr = (u_int32_t *) buf;
168again:
169		pkt = (struct fw_pkt *) ptr;
170#if DEBUG
171		fprintf(stderr, "%08x %08x %08x %08x\n",
172			htonl(ptr[0]), htonl(ptr[1]),
173			htonl(ptr[2]), htonl(ptr[3]));
174#endif
175		ciph = (struct ciphdr *)(ptr + 1);	/* skip iso header */
176		if (ciph->fmt != CIP_FMT_DVCR)
177			errx(1, "unknown format 0x%x", ciph->fmt);
178		ptr = (u_int32_t *) (ciph + 1);		/* skip cip header */
179#if DEBUG
180		if (ciph->fdf.dv.cyc != 0xffff && k == 0) {
181			fprintf(stderr, "0x%04x\n", ntohs(ciph->fdf.dv.cyc));
182		}
183#endif
184		if (pkt->mode.stream.len <= sizeof(struct ciphdr))
185			/* no payload */
186			goto next;
187		for (dv = (struct dvdbc *)ptr;
188				(char *)dv < (char *)(ptr + ciph->len);
189				dv+=6) {
190
191#if DEBUG
192			fprintf(stderr, "(%d,%d) ", dv->sct, dv->dseq);
193#endif
194			if  (dv->sct == DV_SCT_HEADER && dv->dseq == 0) {
195				if (system < 0) {
196					system = ciph->fdf.dv.fs;
197					fprintf(stderr, "%s\n", system_name[system]);
198				}
199
200				/* Fix DSF bit */
201				if (system == 1 &&
202					(dv->payload[0] & DV_DSF_12) == 0)
203					dv->payload[0] |= DV_DSF_12;
204				nb = nblocks[system];
205 				fprintf(stderr, "%d:%02d:%02d %d\r",
206					k / (3600 * frame_rate[system]),
207					(k / (60 * frame_rate[system])) % 60,
208					(k / frame_rate[system]) % 60,
209					k % frame_rate[system]);
210
211#if FIX_FRAME
212				if (m > 0 && m != nb) {
213					/* padding bad frame */
214					npad = ((nb - m) % nb);
215					if (npad < 0)
216						npad += nb;
217					fprintf(stderr, "\n%d blocks padded\n",
218					    npad);
219					npad *= DSIZE;
220					wbuf[vec].iov_base = pad;
221					wbuf[vec++].iov_len = npad;
222					if (vec >= NPACKET_R) {
223						writev(fd, wbuf, vec);
224						vec = 0;
225					}
226				}
227#endif
228				k++;
229				fflush(stderr);
230				m = 0;
231			}
232			if (k == 0 || (count > 0 && k > count))
233				continue;
234			m++;
235			wbuf[vec].iov_base = (char *) dv;
236			wbuf[vec++].iov_len = DSIZE;
237			if (vec >= NPACKET_R) {
238				writev(fd, wbuf, vec);
239				vec = 0;
240			}
241		}
242		ptr = (u_int32_t *)dv;
243next:
244		if ((char *)ptr < buf + tlen)
245			goto again;
246		if (vec > 0)
247			writev(fd, wbuf, vec);
248	}
249	if (fd != STDOUT_FILENO)
250		close(fd);
251	fprintf(stderr, "\n");
252}
253
254
255void
256dvsend(int d, const char *filename, char ich, int count)
257{
258	struct fw_isochreq isoreq;
259	struct fw_isobufreq bufreq;
260	struct dvdbc *dv;
261	struct fw_pkt *pkt;
262	int len, tlen, header, fd, frames, packets, vec, offset, nhdr, i;
263	int system=-1, pad_acc, cycle_acc, cycle, f_cycle, f_frac;
264	struct iovec wbuf[TNBUF*2 + NEMPTY];
265	char *pbuf;
266	u_int32_t iso_data, iso_empty, hdr[TNBUF + NEMPTY][3];
267	struct ciphdr *ciph;
268	struct timeval start, end;
269	double rtime;
270
271	fd = open(filename, O_RDONLY);
272	if (fd == -1)
273		err(EX_NOINPUT, "%s", filename);
274
275	pbuf = malloc(DSIZE * TNBUF);
276	bzero(wbuf, sizeof(wbuf));
277
278	bufreq.rx.nchunk = 0;
279	bufreq.rx.npacket = 0;
280	bufreq.rx.psize = 0;
281	bufreq.tx.nchunk = NCHUNK;
282	bufreq.tx.npacket = NPACKET_T;
283	bufreq.tx.psize = PSIZE;
284	if (ioctl(d, FW_SSTBUF, &bufreq) < 0)
285		err(1, "ioctl FW_SSTBUF");
286
287	isoreq.ch = ich & 0x3f;
288	isoreq.tag = (ich >> 6) & 3;
289
290	if (ioctl(d, FW_STSTREAM, &isoreq) < 0)
291       		err(1, "ioctl FW_STSTREAM");
292
293	iso_data = 0;
294	pkt = (struct fw_pkt *) &iso_data;
295	pkt->mode.stream.len = DSIZE + sizeof(struct ciphdr);
296	pkt->mode.stream.sy = 0;
297	pkt->mode.stream.tcode = FWTCODE_STREAM;
298	pkt->mode.stream.chtag = ich;
299	iso_empty = iso_data;
300	pkt = (struct fw_pkt *) &iso_empty;
301	pkt->mode.stream.len = sizeof(struct ciphdr);
302
303	bzero(hdr[0], sizeof(hdr[0]));
304	hdr[0][0] = iso_data;
305	ciph = (struct ciphdr *)&hdr[0][1];
306	ciph->src = 0;	 /* XXX */
307	ciph->len = 120;
308	ciph->dbc = 0;
309	ciph->eoh1 = 1;
310	ciph->fdf.dv.cyc = 0xffff;
311
312	for (i = 1; i < TNBUF; i++)
313		bcopy(hdr[0], hdr[i], sizeof(hdr[0]));
314
315	gettimeofday(&start, NULL);
316#if DEBUG
317	fprintf(stderr, "%08x %08x %08x\n",
318			htonl(hdr[0]), htonl(hdr[1]), htonl(hdr[2]));
319#endif
320	frames = 0;
321	packets = 0;
322	pad_acc = 0;
323	while (1) {
324		tlen = 0;
325		while (tlen < DSIZE * TNBUF) {
326			len = read(fd, pbuf + tlen, DSIZE * TNBUF - tlen);
327			if (len <= 0) {
328				if (tlen > 0)
329					break;
330				if (len < 0)
331					warn("read");
332				else
333					fprintf(stderr, "\nend of file\n");
334				goto send_end;
335			}
336			tlen += len;
337		}
338		vec = 0;
339		offset = 0;
340		nhdr = 0;
341next:
342		dv = (struct dvdbc *)(pbuf + offset * DSIZE);
343#if 0
344		header = (dv->sct == 0 && dv->dseq == 0);
345#else
346		header = (packets == 0 || packets % npackets[system] == 0);
347#endif
348
349		ciph = (struct ciphdr *)&hdr[nhdr][1];
350		if (header) {
351			if (system < 0) {
352				system = ((dv->payload[0] & DV_DSF_12) != 0);
353				printf("%s\n", system_name[system]);
354				cycle = 1;
355				cycle_acc = frame_cycle[system].d * cycle;
356			}
357			fprintf(stderr, "%d", frames % 10);
358			frames ++;
359			if (count > 0 && frames > count)
360				break;
361			if (frames % frame_rate[system] == 0)
362				fprintf(stderr, "\n");
363			fflush(stderr);
364			f_cycle = (cycle_acc / frame_cycle[system].d) & 0xf;
365			f_frac = (cycle_acc % frame_cycle[system].d
366					* CYCLE_FRAC) / frame_cycle[system].d;
367#if 0
368			ciph->fdf.dv.cyc = htons(f_cycle << 12 | f_frac);
369#else
370			ciph->fdf.dv.cyc = htons(cycle << 12 | f_frac);
371#endif
372			cycle_acc += frame_cycle[system].n;
373			cycle_acc %= frame_cycle[system].d * 0x10;
374
375		} else {
376			ciph->fdf.dv.cyc = 0xffff;
377		}
378		ciph->dbc = packets++ % 256;
379		pad_acc += pad_rate[system].n;
380		if (pad_acc >= pad_rate[system].d) {
381			pad_acc -= pad_rate[system].d;
382			bcopy(hdr[nhdr], hdr[nhdr+1], sizeof(hdr[0]));
383			hdr[nhdr][0] = iso_empty;
384			wbuf[vec].iov_base = (char *)hdr[nhdr];
385			wbuf[vec++].iov_len = sizeof(hdr[0]);
386			nhdr ++;
387			cycle ++;
388		}
389		hdr[nhdr][0] = iso_data;
390		wbuf[vec].iov_base = (char *)hdr[nhdr];
391		wbuf[vec++].iov_len = sizeof(hdr[0]);
392		wbuf[vec].iov_base = (char *)dv;
393		wbuf[vec++].iov_len = DSIZE;
394		nhdr ++;
395		cycle ++;
396		offset ++;
397		if (offset * DSIZE < tlen)
398			goto next;
399
400again:
401		len = writev(d, wbuf, vec);
402		if (len < 0) {
403			if (errno == EAGAIN) {
404				fprintf(stderr, "(EAGAIN) - push 'Play'?\n");
405				goto again;
406			}
407			err(1, "write failed");
408		}
409	}
410	close(fd);
411	fprintf(stderr, "\n");
412send_end:
413	gettimeofday(&end, NULL);
414	rtime = end.tv_sec - start.tv_sec
415			+ (end.tv_usec - start.tv_usec) * 1e-6;
416	fprintf(stderr, "%d frames, %.2f secs, %.2f frames/sec\n",
417			frames, rtime, frames/rtime);
418}
419