1	// SPDX-License-Identifier: GPL-2.0-or-later
2	/*
3	* av7110_av.c: audio and video MPEG decoder stuff
4	*
5	* Copyright (C) 1999-2002 Ralph Metzler
6	* & Marcus Metzler for convergence integrated media GmbH
7	*
8	* originally based on code by:
9	* Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
10	*
11	* the project's page is at https://linuxtv.org
12	*/
13
14	#include <linux/ethtool.h>
15	#include <linux/types.h>
16	#include <linux/kernel.h>
17	#include <linux/string.h>
18	#include <linux/delay.h>
19	#include <linux/fs.h>
20
21	#include "av7110.h"
22	#include "av7110_hw.h"
23	#include "av7110_av.h"
24	#include "av7110_ipack.h"
25
26	/* MPEG-2 (ISO 13818 / H.222.0) stream types */
27	#define PROG_STREAM_MAP 0xBC
28	#define PRIVATE_STREAM1 0xBD
29	#define PADDING_STREAM 0xBE
30	#define PRIVATE_STREAM2 0xBF
31	#define AUDIO_STREAM_S 0xC0
32	#define AUDIO_STREAM_E 0xDF
33	#define VIDEO_STREAM_S 0xE0
34	#define VIDEO_STREAM_E 0xEF
35	#define ECM_STREAM 0xF0
36	#define EMM_STREAM 0xF1
37	#define DSM_CC_STREAM 0xF2
38	#define ISO13522_STREAM 0xF3
39	#define PROG_STREAM_DIR 0xFF
40
41	#define PTS_DTS_FLAGS 0xC0
42
43	//pts_dts flags
44	#define PTS_ONLY 0x80
45	#define PTS_DTS 0xC0
46	#define TS_SIZE 188
47	#define TRANS_ERROR 0x80
48	#define PAY_START 0x40
49	#define TRANS_PRIO 0x20
50	#define PID_MASK_HI 0x1F
51	//flags
52	#define TRANS_SCRMBL1 0x80
53	#define TRANS_SCRMBL2 0x40
54	#define ADAPT_FIELD 0x20
55	#define PAYLOAD 0x10
56	#define COUNT_MASK 0x0F
57
58	// adaptation flags
59	#define DISCON_IND 0x80
60	#define RAND_ACC_IND 0x40
61	#define ES_PRI_IND 0x20
62	#define PCR_FLAG 0x10
63	#define OPCR_FLAG 0x08
64	#define SPLICE_FLAG 0x04
65	#define TRANS_PRIV 0x02
66	#define ADAP_EXT_FLAG 0x01
67
68	// adaptation extension flags
69	#define LTW_FLAG 0x80
70	#define PIECE_RATE 0x40
71	#define SEAM_SPLICE 0x20
72
73
74	static void p_to_t(u8 const *buf, long int length, u16 pid,
75	u8 *counter, struct dvb_demux_feed *feed);
76	static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
77
78
79	int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
80	{
81	struct dvb_demux_feed *dvbdmxfeed = p2t->priv;
82
83	if (!(dvbdmxfeed->ts_type & TS_PACKET))
84	return 0;
85	if (buf[3] == 0xe0) // video PES do not have a length in TS
86	buf[4] = buf[5] = 0;
87	if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
88	return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
89	&dvbdmxfeed->feed.ts, NULL);
90	else
91	return dvb_filter_pes2ts(p2ts: p2t, pes: buf, len, payload_start: 1);
92	}
93
94	static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
95	{
96	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
97
98	dvbdmxfeed->cb.ts(data, 188, NULL, 0,
99	&dvbdmxfeed->feed.ts, NULL);
100	return 0;
101	}
102
103	int av7110_av_start_record(struct av7110 *av7110, int av,
104	struct dvb_demux_feed *dvbdmxfeed)
105	{
106	int ret = 0;
107	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
108
109	dprintk(2, "av7110:%p, dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
110
111	if (av7110->playing || (av7110->rec_mode & av))
112	return -EBUSY;
113	av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Stop, num: 0);
114	dvbdmx->recording = 1;
115	av7110->rec_mode |= av;
116
117	switch (av7110->rec_mode) {
118	case RP_AUDIO:
119	dvb_filter_pes2ts_init(p2ts: &av7110->p2t[0],
120	pid: dvbdmx->pesfilter[0]->pid,
121	cb: dvb_filter_pes2ts_cb,
122	priv: (void *) dvbdmx->pesfilter[0]);
123	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Record, num: 2, AudioPES, 0);
124	break;
125
126	case RP_VIDEO:
127	dvb_filter_pes2ts_init(p2ts: &av7110->p2t[1],
128	pid: dvbdmx->pesfilter[1]->pid,
129	cb: dvb_filter_pes2ts_cb,
130	priv: (void *) dvbdmx->pesfilter[1]);
131	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Record, num: 2, VideoPES, 0);
132	break;
133
134	case RP_AV:
135	dvb_filter_pes2ts_init(p2ts: &av7110->p2t[0],
136	pid: dvbdmx->pesfilter[0]->pid,
137	cb: dvb_filter_pes2ts_cb,
138	priv: (void *) dvbdmx->pesfilter[0]);
139	dvb_filter_pes2ts_init(p2ts: &av7110->p2t[1],
140	pid: dvbdmx->pesfilter[1]->pid,
141	cb: dvb_filter_pes2ts_cb,
142	priv: (void *) dvbdmx->pesfilter[1]);
143	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Record, num: 2, AV_PES, 0);
144	break;
145	}
146	return ret;
147	}
148
149	int av7110_av_start_play(struct av7110 *av7110, int av)
150	{
151	int ret = 0;
152	dprintk(2, "av7110:%p, \n", av7110);
153
154	if (av7110->rec_mode)
155	return -EBUSY;
156	if (av7110->playing & av)
157	return -EBUSY;
158
159	av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Stop, num: 0);
160
161	if (av7110->playing == RP_NONE) {
162	av7110_ipack_reset(p: &av7110->ipack[0]);
163	av7110_ipack_reset(p: &av7110->ipack[1]);
164	}
165
166	av7110->playing |= av;
167	switch (av7110->playing) {
168	case RP_AUDIO:
169	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Play, num: 2, AudioPES, 0);
170	break;
171	case RP_VIDEO:
172	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Play, num: 2, VideoPES, 0);
173	av7110->sinfo = 0;
174	break;
175	case RP_AV:
176	av7110->sinfo = 0;
177	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Play, num: 2, AV_PES, 0);
178	break;
179	}
180	return ret;
181	}
182
183	int av7110_av_stop(struct av7110 *av7110, int av)
184	{
185	int ret = 0;
186	dprintk(2, "av7110:%p, \n", av7110);
187
188	if (!(av7110->playing & av) && !(av7110->rec_mode & av))
189	return 0;
190	av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Stop, num: 0);
191	if (av7110->playing) {
192	av7110->playing &= ~av;
193	switch (av7110->playing) {
194	case RP_AUDIO:
195	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Play, num: 2, AudioPES, 0);
196	break;
197	case RP_VIDEO:
198	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Play, num: 2, VideoPES, 0);
199	break;
200	case RP_NONE:
201	ret = av7110_set_vidmode(av7110, mode: av7110->vidmode);
202	break;
203	}
204	} else {
205	av7110->rec_mode &= ~av;
206	switch (av7110->rec_mode) {
207	case RP_AUDIO:
208	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Record, num: 2, AudioPES, 0);
209	break;
210	case RP_VIDEO:
211	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Record, num: 2, VideoPES, 0);
212	break;
213	case RP_NONE:
214	break;
215	}
216	}
217	return ret;
218	}
219
220
221	int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
222	{
223	int len;
224	u32 sync;
225	u16 blen;
226
227	if (!dlen) {
228	wake_up(&buf->queue);
229	return -1;
230	}
231	while (1) {
232	len = dvb_ringbuffer_avail(rbuf: buf);
233	if (len < 6) {
234	wake_up(&buf->queue);
235	return -1;
236	}
237	sync = DVB_RINGBUFFER_PEEK(buf, 0) << 24;
238	sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
239	sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
240	sync |= DVB_RINGBUFFER_PEEK(buf, 3);
241
242	if (((sync &~ 0x0f) == 0x000001e0) ||
243	((sync &~ 0x1f) == 0x000001c0) ||
244	(sync == 0x000001bd))
245	break;
246	printk("resync\n");
247	DVB_RINGBUFFER_SKIP(buf, 1);
248	}
249	blen = DVB_RINGBUFFER_PEEK(buf, 4) << 8;
250	blen |= DVB_RINGBUFFER_PEEK(buf, 5);
251	blen += 6;
252	if (len < blen || blen > dlen) {
253	//printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
254	wake_up(&buf->queue);
255	return -1;
256	}
257
258	dvb_ringbuffer_read(rbuf: buf, buf: dest, len: (size_t) blen);
259
260	dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
261	(unsigned long) buf->pread, (unsigned long) buf->pwrite);
262	wake_up(&buf->queue);
263	return blen;
264	}
265
266
267	int av7110_set_volume(struct av7110 *av7110, unsigned int volleft,
268	unsigned int volright)
269	{
270	unsigned int vol, val, balance = 0;
271	int err;
272
273	dprintk(2, "av7110:%p, \n", av7110);
274
275	av7110->mixer.volume_left = volleft;
276	av7110->mixer.volume_right = volright;
277
278	switch (av7110->adac_type) {
279	case DVB_ADAC_TI:
280	volleft = (volleft * 256) / 1036;
281	volright = (volright * 256) / 1036;
282	if (volleft > 0x3f)
283	volleft = 0x3f;
284	if (volright > 0x3f)
285	volright = 0x3f;
286	if ((err = SendDAC(av7110, addr: 3, data: 0x80 + volleft)))
287	return err;
288	return SendDAC(av7110, addr: 4, data: volright);
289
290	case DVB_ADAC_CRYSTAL:
291	volleft = 127 - volleft / 2;
292	volright = 127 - volright / 2;
293	i2c_writereg(av7110, id: 0x20, reg: 0x03, val: volleft);
294	i2c_writereg(av7110, id: 0x20, reg: 0x04, val: volright);
295	return 0;
296
297	case DVB_ADAC_MSP34x0:
298	vol = (volleft > volright) ? volleft : volright;
299	val = (vol * 0x73 / 255) << 8;
300	if (vol > 0)
301	balance = ((volright - volleft) * 127) / vol;
302	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0001, val: balance << 8);
303	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0000, val); /* loudspeaker */
304	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0006, val); /* headphonesr */
305	return 0;
306
307	case DVB_ADAC_MSP34x5:
308	vol = (volleft > volright) ? volleft : volright;
309	val = (vol * 0x73 / 255) << 8;
310	if (vol > 0)
311	balance = ((volright - volleft) * 127) / vol;
312	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0001, val: balance << 8);
313	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0000, val); /* loudspeaker */
314	return 0;
315	}
316
317	return 0;
318	}
319
320	int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
321	{
322	int ret;
323	dprintk(2, "av7110:%p, \n", av7110);
324
325	ret = av7110_fw_cmd(av7110, type: COMTYPE_ENCODER, com: LoadVidCode, num: 1, mode);
326
327	if (!ret && !av7110->playing) {
328	ret = ChangePIDs(av7110, vpid: av7110->pids[DMX_PES_VIDEO],
329	apid: av7110->pids[DMX_PES_AUDIO],
330	ttpid: av7110->pids[DMX_PES_TELETEXT],
331	subpid: 0, pcrpid: av7110->pids[DMX_PES_PCR]);
332	if (!ret)
333	ret = av7110_fw_cmd(av7110, type: COMTYPE_PIDFILTER, com: Scan, num: 0);
334	}
335	return ret;
336	}
337
338
339	static enum av7110_video_mode sw2mode[16] = {
340	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
341	AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
342	AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
343	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
344	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
345	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
346	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
347	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
348	};
349
350	static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
351	{
352	int i;
353	int hsize, vsize;
354	int sw;
355	u8 *p;
356	int ret = 0;
357
358	dprintk(2, "av7110:%p, \n", av7110);
359
360	if (av7110->sinfo)
361	return 0;
362	for (i = 7; i < count - 10; i++) {
363	p = buf + i;
364	if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
365	continue;
366	p += 4;
367	hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
368	vsize = ((p[1] &0x0F) << 8) | (p[2]);
369	sw = (p[3] & 0x0F);
370	ret = av7110_set_vidmode(av7110, mode: sw2mode[sw]);
371	if (!ret) {
372	dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
373	av7110->sinfo = 1;
374	}
375	break;
376	}
377	return ret;
378	}
379
380
381	/****************************************************************************
382	* I/O buffer management and control
383	****************************************************************************/
384
385	static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
386	const u8 *buf, unsigned long count)
387	{
388	unsigned long todo = count;
389	int free;
390
391	while (todo > 0) {
392	if (dvb_ringbuffer_free(rbuf) < 2048) {
393	if (wait_event_interruptible(rbuf->queue,
394	(dvb_ringbuffer_free(rbuf) >= 2048)))
395	return count - todo;
396	}
397	free = dvb_ringbuffer_free(rbuf);
398	if (free > todo)
399	free = todo;
400	dvb_ringbuffer_write(rbuf, buf, len: free);
401	todo -= free;
402	buf += free;
403	}
404
405	return count - todo;
406	}
407
408	static void play_video_cb(u8 *buf, int count, void *priv)
409	{
410	struct av7110 *av7110 = (struct av7110 *) priv;
411	dprintk(2, "av7110:%p, \n", av7110);
412
413	if ((buf[3] & 0xe0) == 0xe0) {
414	get_video_format(av7110, buf, count);
415	aux_ring_buffer_write(rbuf: &av7110->avout, buf, count);
416	} else
417	aux_ring_buffer_write(rbuf: &av7110->aout, buf, count);
418	}
419
420	static void play_audio_cb(u8 *buf, int count, void *priv)
421	{
422	struct av7110 *av7110 = (struct av7110 *) priv;
423	dprintk(2, "av7110:%p, \n", av7110);
424
425	aux_ring_buffer_write(rbuf: &av7110->aout, buf, count);
426	}
427
428
429	#define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
430
431	static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
432	unsigned long count, int nonblock, int type)
433	{
434	struct dvb_ringbuffer *rb;
435	u8 *kb;
436	unsigned long todo = count;
437
438	dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
439
440	rb = (type) ? &av7110->avout : &av7110->aout;
441	kb = av7110->kbuf[type];
442
443	if (!kb)
444	return -ENOBUFS;
445
446	if (nonblock && !FREE_COND_TS)
447	return -EWOULDBLOCK;
448
449	while (todo >= TS_SIZE) {
450	if (!FREE_COND_TS) {
451	if (nonblock)
452	return count - todo;
453	if (wait_event_interruptible(rb->queue, FREE_COND_TS))
454	return count - todo;
455	}
456	if (copy_from_user(to: kb, from: buf, TS_SIZE))
457	return -EFAULT;
458	write_ts_to_decoder(av7110, type, buf: kb, TS_SIZE);
459	todo -= TS_SIZE;
460	buf += TS_SIZE;
461	}
462
463	return count - todo;
464	}
465
466
467	#define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
468	dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
469
470	static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
471	unsigned long count, int nonblock, int type)
472	{
473	unsigned long todo = count, n;
474	dprintk(2, "av7110:%p, \n", av7110);
475
476	if (!av7110->kbuf[type])
477	return -ENOBUFS;
478
479	if (nonblock && !FREE_COND)
480	return -EWOULDBLOCK;
481
482	while (todo > 0) {
483	if (!FREE_COND) {
484	if (nonblock)
485	return count - todo;
486	if (wait_event_interruptible(av7110->avout.queue,
487	FREE_COND))
488	return count - todo;
489	}
490	n = todo;
491	if (n > IPACKS * 2)
492	n = IPACKS * 2;
493	if (copy_from_user(to: av7110->kbuf[type], from: buf, n))
494	return -EFAULT;
495	av7110_ipack_instant_repack(buf: av7110->kbuf[type], count: n,
496	p: &av7110->ipack[type]);
497	todo -= n;
498	buf += n;
499	}
500	return count - todo;
501	}
502
503	static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
504	unsigned long count, int nonblock, int type)
505	{
506	unsigned long todo = count, n;
507	dprintk(2, "av7110:%p, \n", av7110);
508
509	if (!av7110->kbuf[type])
510	return -ENOBUFS;
511
512	if (nonblock && !FREE_COND)
513	return -EWOULDBLOCK;
514
515	while (todo > 0) {
516	if (!FREE_COND) {
517	if (nonblock)
518	return count - todo;
519	if (wait_event_interruptible(av7110->avout.queue,
520	FREE_COND))
521	return count - todo;
522	}
523	n = todo;
524	if (n > IPACKS * 2)
525	n = IPACKS * 2;
526	av7110_ipack_instant_repack(buf, count: n, p: &av7110->ipack[type]);
527	todo -= n;
528	buf += n;
529	}
530	return count - todo;
531	}
532
533	static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
534	unsigned long count, int nonblock, int type)
535	{
536	unsigned long todo = count, n;
537	dprintk(2, "av7110:%p, \n", av7110);
538
539	if (!av7110->kbuf[type])
540	return -ENOBUFS;
541	if (nonblock && dvb_ringbuffer_free(rbuf: &av7110->aout) < 20 * 1024)
542	return -EWOULDBLOCK;
543
544	while (todo > 0) {
545	if (dvb_ringbuffer_free(rbuf: &av7110->aout) < 20 * 1024) {
546	if (nonblock)
547	return count - todo;
548	if (wait_event_interruptible(av7110->aout.queue,
549	(dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
550	return count-todo;
551	}
552	n = todo;
553	if (n > IPACKS * 2)
554	n = IPACKS * 2;
555	if (copy_from_user(to: av7110->kbuf[type], from: buf, n))
556	return -EFAULT;
557	av7110_ipack_instant_repack(buf: av7110->kbuf[type], count: n,
558	p: &av7110->ipack[type]);
559	todo -= n;
560	buf += n;
561	}
562	return count - todo;
563	}
564
565	void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
566	{
567	memset(p->pes, 0, TS_SIZE);
568	p->counter = 0;
569	p->pos = 0;
570	p->frags = 0;
571	if (feed)
572	p->feed = feed;
573	}
574
575	static void clear_p2t(struct av7110_p2t *p)
576	{
577	memset(p->pes, 0, TS_SIZE);
578	// p->counter = 0;
579	p->pos = 0;
580	p->frags = 0;
581	}
582
583
584	static int find_pes_header(u8 const *buf, long int length, int *frags)
585	{
586	int c = 0;
587	int found = 0;
588
589	*frags = 0;
590
591	while (c < length - 3 && !found) {
592	if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
593	buf[c + 2] == 0x01) {
594	switch ( buf[c + 3] ) {
595	case PROG_STREAM_MAP:
596	case PRIVATE_STREAM2:
597	case PROG_STREAM_DIR:
598	case ECM_STREAM:
599	case EMM_STREAM:
600	case PADDING_STREAM:
601	case DSM_CC_STREAM:
602	case ISO13522_STREAM:
603	case PRIVATE_STREAM1:
604	case AUDIO_STREAM_S ... AUDIO_STREAM_E:
605	case VIDEO_STREAM_S ... VIDEO_STREAM_E:
606	found = 1;
607	break;
608
609	default:
610	c++;
611	break;
612	}
613	} else
614	c++;
615	}
616	if (c == length - 3 && !found) {
617	if (buf[length - 1] == 0x00)
618	*frags = 1;
619	if (buf[length - 2] == 0x00 &&
620	buf[length - 1] == 0x00)
621	*frags = 2;
622	if (buf[length - 3] == 0x00 &&
623	buf[length - 2] == 0x00 &&
624	buf[length - 1] == 0x01)
625	*frags = 3;
626	return -1;
627	}
628
629	return c;
630	}
631
632	void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
633	{
634	int c, c2, l, add;
635	int check, rest;
636
637	c = 0;
638	c2 = 0;
639	if (p->frags){
640	check = 0;
641	switch(p->frags) {
642	case 1:
643	if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
644	check = 1;
645	c += 2;
646	}
647	break;
648	case 2:
649	if (buf[c] == 0x01) {
650	check = 1;
651	c++;
652	}
653	break;
654	case 3:
655	check = 1;
656	}
657	if (check) {
658	switch (buf[c]) {
659	case PROG_STREAM_MAP:
660	case PRIVATE_STREAM2:
661	case PROG_STREAM_DIR:
662	case ECM_STREAM:
663	case EMM_STREAM:
664	case PADDING_STREAM:
665	case DSM_CC_STREAM:
666	case ISO13522_STREAM:
667	case PRIVATE_STREAM1:
668	case AUDIO_STREAM_S ... AUDIO_STREAM_E:
669	case VIDEO_STREAM_S ... VIDEO_STREAM_E:
670	p->pes[0] = 0x00;
671	p->pes[1] = 0x00;
672	p->pes[2] = 0x01;
673	p->pes[3] = buf[c];
674	p->pos = 4;
675	memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
676	c += (TS_SIZE - 4) - p->pos;
677	p_to_t(buf: p->pes, length: (TS_SIZE - 4), pid, counter: &p->counter, feed: p->feed);
678	clear_p2t(p);
679	break;
680
681	default:
682	c = 0;
683	break;
684	}
685	}
686	p->frags = 0;
687	}
688
689	if (p->pos) {
690	c2 = find_pes_header(buf: buf + c, length: length - c, frags: &p->frags);
691	if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
692	l = c2+c;
693	else
694	l = (TS_SIZE - 4) - p->pos;
695	memcpy(p->pes + p->pos, buf, l);
696	c += l;
697	p->pos += l;
698	p_to_t(buf: p->pes, length: p->pos, pid, counter: &p->counter, feed: p->feed);
699	clear_p2t(p);
700	}
701
702	add = 0;
703	while (c < length) {
704	c2 = find_pes_header(buf: buf + c + add, length: length - c - add, frags: &p->frags);
705	if (c2 >= 0) {
706	c2 += c + add;
707	if (c2 > c){
708	p_to_t(buf: buf + c, length: c2 - c, pid, counter: &p->counter, feed: p->feed);
709	c = c2;
710	clear_p2t(p);
711	add = 0;
712	} else
713	add = 1;
714	} else {
715	l = length - c;
716	rest = l % (TS_SIZE - 4);
717	l -= rest;
718	p_to_t(buf: buf + c, length: l, pid, counter: &p->counter, feed: p->feed);
719	memcpy(p->pes, buf + c + l, rest);
720	p->pos = rest;
721	c = length;
722	}
723	}
724	}
725
726
727	static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
728	{
729	int i;
730	int c = 0;
731	int fill;
732	u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
733
734	fill = (TS_SIZE - 4) - length;
735	if (pes_start)
736	tshead[1] = 0x40;
737	if (fill)
738	tshead[3] = 0x30;
739	tshead[1] |= (u8)((pid & 0x1F00) >> 8);
740	tshead[2] |= (u8)(pid & 0x00FF);
741	tshead[3] |= ((*counter)++ & 0x0F);
742	memcpy(buf, tshead, 4);
743	c += 4;
744
745	if (fill) {
746	buf[4] = fill - 1;
747	c++;
748	if (fill > 1) {
749	buf[5] = 0x00;
750	c++;
751	}
752	for (i = 6; i < fill + 4; i++) {
753	buf[i] = 0xFF;
754	c++;
755	}
756	}
757
758	return c;
759	}
760
761
762	static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
763	struct dvb_demux_feed *feed)
764	{
765	int l, pes_start;
766	u8 obuf[TS_SIZE];
767	long c = 0;
768
769	pes_start = 0;
770	if (length > 3 &&
771	buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
772	switch (buf[3]) {
773	case PROG_STREAM_MAP:
774	case PRIVATE_STREAM2:
775	case PROG_STREAM_DIR:
776	case ECM_STREAM:
777	case EMM_STREAM:
778	case PADDING_STREAM:
779	case DSM_CC_STREAM:
780	case ISO13522_STREAM:
781	case PRIVATE_STREAM1:
782	case AUDIO_STREAM_S ... AUDIO_STREAM_E:
783	case VIDEO_STREAM_S ... VIDEO_STREAM_E:
784	pes_start = 1;
785	break;
786
787	default:
788	break;
789	}
790
791	while (c < length) {
792	memset(obuf, 0, TS_SIZE);
793	if (length - c >= (TS_SIZE - 4)){
794	l = write_ts_header2(pid, counter, pes_start,
795	buf: obuf, length: (TS_SIZE - 4));
796	memcpy(obuf + l, buf + c, TS_SIZE - l);
797	c += TS_SIZE - l;
798	} else {
799	l = write_ts_header2(pid, counter, pes_start,
800	buf: obuf, length: length - c);
801	memcpy(obuf + l, buf + c, TS_SIZE - l);
802	c = length;
803	}
804	feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, NULL);
805	pes_start = 0;
806	}
807	}
808
809
810	static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
811	{
812	struct ipack *ipack = &av7110->ipack[type];
813
814	if (buf[1] & TRANS_ERROR) {
815	av7110_ipack_reset(p: ipack);
816	return -1;
817	}
818
819	if (!(buf[3] & PAYLOAD))
820	return -1;
821
822	if (buf[1] & PAY_START)
823	av7110_ipack_flush(p: ipack);
824
825	if (buf[3] & ADAPT_FIELD) {
826	if (buf[4] > len - 1 - 4)
827	return 0;
828	len -= buf[4] + 1;
829	buf += buf[4] + 1;
830	}
831
832	av7110_ipack_instant_repack(buf: buf + 4, count: len - 4, p: ipack);
833	return 0;
834	}
835
836
837	int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
838	{
839	struct dvb_demux *demux = feed->demux;
840	struct av7110 *av7110 = demux->priv;
841
842	dprintk(2, "av7110:%p, \n", av7110);
843
844	if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
845	return 0;
846
847	switch (feed->pes_type) {
848	case 0:
849	if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
850	return -EINVAL;
851	break;
852	case 1:
853	if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
854	return -EINVAL;
855	break;
856	default:
857	return -1;
858	}
859
860	return write_ts_to_decoder(av7110, type: feed->pes_type, buf, len);
861	}
862
863
864
865	/******************************************************************************
866	* Video MPEG decoder events
867	******************************************************************************/
868	void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
869	{
870	struct dvb_video_events *events = &av7110->video_events;
871	int wp;
872
873	spin_lock_bh(lock: &events->lock);
874
875	wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
876	if (wp == events->eventr) {
877	events->overflow = 1;
878	events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
879	}
880
881	//FIXME: timestamp?
882	memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
883	events->eventw = wp;
884
885	spin_unlock_bh(lock: &events->lock);
886
887	wake_up_interruptible(&events->wait_queue);
888	}
889
890
891	static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
892	{
893	struct dvb_video_events *events = &av7110->video_events;
894
895	if (events->overflow) {
896	events->overflow = 0;
897	return -EOVERFLOW;
898	}
899	if (events->eventw == events->eventr) {
900	int ret;
901
902	if (flags & O_NONBLOCK)
903	return -EWOULDBLOCK;
904
905	ret = wait_event_interruptible(events->wait_queue,
906	events->eventw != events->eventr);
907	if (ret < 0)
908	return ret;
909	}
910
911	spin_lock_bh(lock: &events->lock);
912
913	memcpy(event, &events->events[events->eventr],
914	sizeof(struct video_event));
915	events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
916
917	spin_unlock_bh(lock: &events->lock);
918
919	return 0;
920	}
921
922	/******************************************************************************
923	* DVB device file operations
924	******************************************************************************/
925
926	static __poll_t dvb_video_poll(struct file *file, poll_table *wait)
927	{
928	struct dvb_device *dvbdev = file->private_data;
929	struct av7110 *av7110 = dvbdev->priv;
930	__poll_t mask = 0;
931
932	dprintk(2, "av7110:%p, \n", av7110);
933
934	if ((file->f_flags & O_ACCMODE) != O_RDONLY)
935	poll_wait(filp: file, wait_address: &av7110->avout.queue, p: wait);
936
937	poll_wait(filp: file, wait_address: &av7110->video_events.wait_queue, p: wait);
938
939	if (av7110->video_events.eventw != av7110->video_events.eventr)
940	mask = EPOLLPRI;
941
942	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
943	if (av7110->playing) {
944	if (FREE_COND)
945	mask |= (EPOLLOUT | EPOLLWRNORM);
946	} else {
947	/* if not playing: may play if asked for */
948	mask |= (EPOLLOUT | EPOLLWRNORM);
949	}
950	}
951
952	return mask;
953	}
954
955	static ssize_t dvb_video_write(struct file *file, const char __user *buf,
956	size_t count, loff_t *ppos)
957	{
958	struct dvb_device *dvbdev = file->private_data;
959	struct av7110 *av7110 = dvbdev->priv;
960	unsigned char c;
961
962	dprintk(2, "av7110:%p, \n", av7110);
963
964	if ((file->f_flags & O_ACCMODE) == O_RDONLY)
965	return -EPERM;
966
967	if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
968	return -EPERM;
969
970	if (get_user(c, buf))
971	return -EFAULT;
972	if (c == 0x47 && count % TS_SIZE == 0)
973	return ts_play(av7110, buf, count, nonblock: file->f_flags & O_NONBLOCK, type: 1);
974	else
975	return dvb_play(av7110, buf, count, nonblock: file->f_flags & O_NONBLOCK, type: 1);
976	}
977
978	static __poll_t dvb_audio_poll(struct file *file, poll_table *wait)
979	{
980	struct dvb_device *dvbdev = file->private_data;
981	struct av7110 *av7110 = dvbdev->priv;
982	__poll_t mask = 0;
983
984	dprintk(2, "av7110:%p, \n", av7110);
985
986	poll_wait(filp: file, wait_address: &av7110->aout.queue, p: wait);
987
988	if (av7110->playing) {
989	if (dvb_ringbuffer_free(rbuf: &av7110->aout) >= 20 * 1024)
990	mask |= (EPOLLOUT | EPOLLWRNORM);
991	} else /* if not playing: may play if asked for */
992	mask = (EPOLLOUT | EPOLLWRNORM);
993
994	return mask;
995	}
996
997	static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
998	size_t count, loff_t *ppos)
999	{
1000	struct dvb_device *dvbdev = file->private_data;
1001	struct av7110 *av7110 = dvbdev->priv;
1002	unsigned char c;
1003
1004	dprintk(2, "av7110:%p, \n", av7110);
1005
1006	if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1007	printk(KERN_ERR "not audio source memory\n");
1008	return -EPERM;
1009	}
1010
1011	if (get_user(c, buf))
1012	return -EFAULT;
1013	if (c == 0x47 && count % TS_SIZE == 0)
1014	return ts_play(av7110, buf, count, nonblock: file->f_flags & O_NONBLOCK, type: 0);
1015	else
1016	return dvb_aplay(av7110, buf, count, nonblock: file->f_flags & O_NONBLOCK, type: 0);
1017	}
1018
1019	static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1020
1021	#define MIN_IFRAME 400000
1022
1023	static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1024	{
1025	unsigned i, n;
1026	int progressive = 0;
1027	int match = 0;
1028
1029	dprintk(2, "av7110:%p, \n", av7110);
1030
1031	if (len == 0)
1032	return 0;
1033
1034	if (!(av7110->playing & RP_VIDEO)) {
1035	if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1036	return -EBUSY;
1037	}
1038
1039	/* search in buf for instances of 00 00 01 b5 1? */
1040	for (i = 0; i < len; i++) {
1041	unsigned char c;
1042	if (get_user(c, buf + i))
1043	return -EFAULT;
1044	if (match == 5) {
1045	progressive = c & 0x08;
1046	match = 0;
1047	}
1048	if (c == 0x00) {
1049	match = (match == 1 || match == 2) ? 2 : 1;
1050	continue;
1051	}
1052	switch (match++) {
1053	case 2: if (c == 0x01)
1054	continue;
1055	break;
1056	case 3: if (c == 0xb5)
1057	continue;
1058	break;
1059	case 4: if ((c & 0xf0) == 0x10)
1060	continue;
1061	break;
1062	}
1063	match = 0;
1064	}
1065
1066	/* setting n always > 1, fixes problems when playing stillframes
1067	consisting of I- and P-Frames */
1068	n = MIN_IFRAME / len + 1;
1069
1070	/* FIXME: nonblock? */
1071	dvb_play_kernel(av7110, buf: iframe_header, count: sizeof(iframe_header), nonblock: 0, type: 1);
1072
1073	for (i = 0; i < n; i++)
1074	dvb_play(av7110, buf, count: len, nonblock: 0, type: 1);
1075
1076	av7110_ipack_flush(p: &av7110->ipack[1]);
1077
1078	if (progressive)
1079	return vidcom(av7110, AV_VIDEO_CMD_FREEZE, arg: 1);
1080	else
1081	return 0;
1082	}
1083
1084	#ifdef CONFIG_COMPAT
1085	struct compat_video_still_picture {
1086	compat_uptr_t iFrame;
1087	int32_t size;
1088	};
1089	#define VIDEO_STILLPICTURE32 _IOW('o', 30, struct compat_video_still_picture)
1090
1091	struct compat_video_event {
1092	__s32 type;
1093	/* unused, make sure to use atomic time for y2038 if it ever gets used */
1094	compat_long_t timestamp;
1095	union {
1096	video_size_t size;
1097	unsigned int frame_rate; /* in frames per 1000sec */
1098	unsigned char vsync_field; /* unknown/odd/even/progressive */
1099	} u;
1100	};
1101	#define VIDEO_GET_EVENT32 _IOR('o', 28, struct compat_video_event)
1102
1103	static int dvb_compat_video_get_event(struct av7110 *av7110,
1104	struct compat_video_event *event, int flags)
1105	{
1106	struct video_event ev;
1107	int ret;
1108
1109	ret = dvb_video_get_event(av7110, event: &ev, flags);
1110
1111	*event = (struct compat_video_event) {
1112	.type = ev.type,
1113	.timestamp = ev.timestamp,
1114	.u.size = ev.u.size,
1115	};
1116
1117	return ret;
1118	}
1119	#endif
1120
1121	static int dvb_video_ioctl(struct file *file,
1122	unsigned int cmd, void *parg)
1123	{
1124	struct dvb_device *dvbdev = file->private_data;
1125	struct av7110 *av7110 = dvbdev->priv;
1126	unsigned long arg = (unsigned long) parg;
1127	int ret = 0;
1128
1129	dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1130
1131	if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1132	if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1133	cmd != VIDEO_GET_SIZE ) {
1134	return -EPERM;
1135	}
1136	}
1137
1138	if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1139	return -ERESTARTSYS;
1140
1141	switch (cmd) {
1142	case VIDEO_STOP:
1143	av7110->videostate.play_state = VIDEO_STOPPED;
1144	if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1145	ret = av7110_av_stop(av7110, RP_VIDEO);
1146	else
1147	ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1148	arg: av7110->videostate.video_blank ? 0 : 1);
1149	if (!ret)
1150	av7110->trickmode = TRICK_NONE;
1151	break;
1152
1153	case VIDEO_PLAY:
1154	av7110->trickmode = TRICK_NONE;
1155	if (av7110->videostate.play_state == VIDEO_FREEZED) {
1156	av7110->videostate.play_state = VIDEO_PLAYING;
1157	ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, arg: 0);
1158	if (ret)
1159	break;
1160	}
1161	if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1162	if (av7110->playing == RP_AV) {
1163	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Stop, num: 0);
1164	if (ret)
1165	break;
1166	av7110->playing &= ~RP_VIDEO;
1167	}
1168	ret = av7110_av_start_play(av7110, RP_VIDEO);
1169	}
1170	if (!ret)
1171	ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, arg: 0);
1172	if (!ret)
1173	av7110->videostate.play_state = VIDEO_PLAYING;
1174	break;
1175
1176	case VIDEO_FREEZE:
1177	av7110->videostate.play_state = VIDEO_FREEZED;
1178	if (av7110->playing & RP_VIDEO)
1179	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Pause, num: 0);
1180	else
1181	ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, arg: 1);
1182	if (!ret)
1183	av7110->trickmode = TRICK_FREEZE;
1184	break;
1185
1186	case VIDEO_CONTINUE:
1187	if (av7110->playing & RP_VIDEO)
1188	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Continue, num: 0);
1189	if (!ret)
1190	ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, arg: 0);
1191	if (!ret) {
1192	av7110->videostate.play_state = VIDEO_PLAYING;
1193	av7110->trickmode = TRICK_NONE;
1194	}
1195	break;
1196
1197	case VIDEO_SELECT_SOURCE:
1198	av7110->videostate.stream_source = (video_stream_source_t) arg;
1199	break;
1200
1201	case VIDEO_SET_BLANK:
1202	av7110->videostate.video_blank = (int) arg;
1203	break;
1204
1205	case VIDEO_GET_STATUS:
1206	memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1207	break;
1208
1209	#ifdef CONFIG_COMPAT
1210	case VIDEO_GET_EVENT32:
1211	ret = dvb_compat_video_get_event(av7110, event: parg, flags: file->f_flags);
1212	break;
1213	#endif
1214
1215	case VIDEO_GET_EVENT:
1216	ret = dvb_video_get_event(av7110, event: parg, flags: file->f_flags);
1217	break;
1218
1219	case VIDEO_GET_SIZE:
1220	memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1221	break;
1222
1223	case VIDEO_SET_DISPLAY_FORMAT:
1224	{
1225	video_displayformat_t format = (video_displayformat_t) arg;
1226	switch (format) {
1227	case VIDEO_PAN_SCAN:
1228	av7110->display_panscan = VID_PAN_SCAN_PREF;
1229	break;
1230	case VIDEO_LETTER_BOX:
1231	av7110->display_panscan = VID_VC_AND_PS_PREF;
1232	break;
1233	case VIDEO_CENTER_CUT_OUT:
1234	av7110->display_panscan = VID_CENTRE_CUT_PREF;
1235	break;
1236	default:
1237	ret = -EINVAL;
1238	}
1239	if (ret < 0)
1240	break;
1241	av7110->videostate.display_format = format;
1242	ret = av7110_fw_cmd(av7110, type: COMTYPE_ENCODER, com: SetPanScanType,
1243	num: 1, av7110->display_panscan);
1244	break;
1245	}
1246
1247	case VIDEO_SET_FORMAT:
1248	if (arg > 1) {
1249	ret = -EINVAL;
1250	break;
1251	}
1252	av7110->display_ar = arg;
1253	ret = av7110_fw_cmd(av7110, type: COMTYPE_ENCODER, com: SetMonitorType,
1254	num: 1, (u16) arg);
1255	break;
1256
1257	#ifdef CONFIG_COMPAT
1258	case VIDEO_STILLPICTURE32:
1259	{
1260	struct compat_video_still_picture *pic =
1261	(struct compat_video_still_picture *) parg;
1262	av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1263	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->avout);
1264	ret = play_iframe(av7110, buf: compat_ptr(uptr: pic->iFrame),
1265	len: pic->size, nonblock: file->f_flags & O_NONBLOCK);
1266	break;
1267	}
1268	#endif
1269
1270	case VIDEO_STILLPICTURE:
1271	{
1272	struct video_still_picture *pic =
1273	(struct video_still_picture *) parg;
1274	av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1275	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->avout);
1276	ret = play_iframe(av7110, buf: pic->iFrame, len: pic->size,
1277	nonblock: file->f_flags & O_NONBLOCK);
1278	break;
1279	}
1280
1281	case VIDEO_FAST_FORWARD:
1282	//note: arg is ignored by firmware
1283	if (av7110->playing & RP_VIDEO)
1284	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY,
1285	com: __Scan_I, num: 2, AV_PES, 0);
1286	else
1287	ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1288	if (!ret) {
1289	av7110->trickmode = TRICK_FAST;
1290	av7110->videostate.play_state = VIDEO_PLAYING;
1291	}
1292	break;
1293
1294	case VIDEO_SLOWMOTION:
1295	if (av7110->playing&RP_VIDEO) {
1296	if (av7110->trickmode != TRICK_SLOW)
1297	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY, com: __Slow, num: 2, 0, 0);
1298	if (!ret)
1299	ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1300	} else {
1301	ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, arg: 0);
1302	if (!ret)
1303	ret = vidcom(av7110, AV_VIDEO_CMD_STOP, arg: 0);
1304	if (!ret)
1305	ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1306	}
1307	if (!ret) {
1308	av7110->trickmode = TRICK_SLOW;
1309	av7110->videostate.play_state = VIDEO_PLAYING;
1310	}
1311	break;
1312
1313	case VIDEO_GET_CAPABILITIES:
1314	*(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1315	VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1316	break;
1317
1318	case VIDEO_CLEAR_BUFFER:
1319	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->avout);
1320	av7110_ipack_reset(p: &av7110->ipack[1]);
1321	if (av7110->playing == RP_AV) {
1322	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY,
1323	com: __Play, num: 2, AV_PES, 0);
1324	if (ret)
1325	break;
1326	if (av7110->trickmode == TRICK_FAST)
1327	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY,
1328	com: __Scan_I, num: 2, AV_PES, 0);
1329	if (av7110->trickmode == TRICK_SLOW) {
1330	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY,
1331	com: __Slow, num: 2, 0, 0);
1332	if (!ret)
1333	ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1334	}
1335	if (av7110->trickmode == TRICK_FREEZE)
1336	ret = vidcom(av7110, AV_VIDEO_CMD_STOP, arg: 1);
1337	}
1338	break;
1339
1340	case VIDEO_SET_STREAMTYPE:
1341	break;
1342
1343	default:
1344	ret = -ENOIOCTLCMD;
1345	break;
1346	}
1347
1348	mutex_unlock(lock: &av7110->ioctl_mutex);
1349	return ret;
1350	}
1351
1352	static int dvb_audio_ioctl(struct file *file,
1353	unsigned int cmd, void *parg)
1354	{
1355	struct dvb_device *dvbdev = file->private_data;
1356	struct av7110 *av7110 = dvbdev->priv;
1357	unsigned long arg = (unsigned long) parg;
1358	int ret = 0;
1359
1360	dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1361
1362	if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1363	(cmd != AUDIO_GET_STATUS))
1364	return -EPERM;
1365
1366	if (mutex_lock_interruptible(&av7110->ioctl_mutex))
1367	return -ERESTARTSYS;
1368
1369	switch (cmd) {
1370	case AUDIO_STOP:
1371	if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1372	ret = av7110_av_stop(av7110, RP_AUDIO);
1373	else
1374	ret = audcom(av7110, AUDIO_CMD_MUTE);
1375	if (!ret)
1376	av7110->audiostate.play_state = AUDIO_STOPPED;
1377	break;
1378
1379	case AUDIO_PLAY:
1380	if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1381	ret = av7110_av_start_play(av7110, RP_AUDIO);
1382	if (!ret)
1383	ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1384	if (!ret)
1385	av7110->audiostate.play_state = AUDIO_PLAYING;
1386	break;
1387
1388	case AUDIO_PAUSE:
1389	ret = audcom(av7110, AUDIO_CMD_MUTE);
1390	if (!ret)
1391	av7110->audiostate.play_state = AUDIO_PAUSED;
1392	break;
1393
1394	case AUDIO_CONTINUE:
1395	if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1396	av7110->audiostate.play_state = AUDIO_PLAYING;
1397	ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1398	}
1399	break;
1400
1401	case AUDIO_SELECT_SOURCE:
1402	av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1403	break;
1404
1405	case AUDIO_SET_MUTE:
1406	{
1407	ret = audcom(av7110, com: arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1408	if (!ret)
1409	av7110->audiostate.mute_state = (int) arg;
1410	break;
1411	}
1412
1413	case AUDIO_SET_AV_SYNC:
1414	av7110->audiostate.AV_sync_state = (int) arg;
1415	ret = audcom(av7110, com: arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1416	break;
1417
1418	case AUDIO_SET_BYPASS_MODE:
1419	if (FW_VERSION(av7110->arm_app) < 0x2621)
1420	ret = -EINVAL;
1421	av7110->audiostate.bypass_mode = (int)arg;
1422	break;
1423
1424	case AUDIO_CHANNEL_SELECT:
1425	av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1426	switch(av7110->audiostate.channel_select) {
1427	case AUDIO_STEREO:
1428	ret = audcom(av7110, AUDIO_CMD_STEREO);
1429	if (!ret) {
1430	if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1431	i2c_writereg(av7110, id: 0x20, reg: 0x02, val: 0x49);
1432	else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1433	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0008, val: 0x0220);
1434	}
1435	break;
1436	case AUDIO_MONO_LEFT:
1437	ret = audcom(av7110, AUDIO_CMD_MONO_L);
1438	if (!ret) {
1439	if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1440	i2c_writereg(av7110, id: 0x20, reg: 0x02, val: 0x4a);
1441	else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1442	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0008, val: 0x0200);
1443	}
1444	break;
1445	case AUDIO_MONO_RIGHT:
1446	ret = audcom(av7110, AUDIO_CMD_MONO_R);
1447	if (!ret) {
1448	if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1449	i2c_writereg(av7110, id: 0x20, reg: 0x02, val: 0x45);
1450	else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1451	msp_writereg(av7110, MSP_WR_DSP, reg: 0x0008, val: 0x0210);
1452	}
1453	break;
1454	default:
1455	ret = -EINVAL;
1456	break;
1457	}
1458	break;
1459
1460	case AUDIO_GET_STATUS:
1461	memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1462	break;
1463
1464	case AUDIO_GET_CAPABILITIES:
1465	if (FW_VERSION(av7110->arm_app) < 0x2621)
1466	*(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1467	else
1468	*(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1469	AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1470	break;
1471
1472	case AUDIO_CLEAR_BUFFER:
1473	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->aout);
1474	av7110_ipack_reset(p: &av7110->ipack[0]);
1475	if (av7110->playing == RP_AV)
1476	ret = av7110_fw_cmd(av7110, type: COMTYPE_REC_PLAY,
1477	com: __Play, num: 2, AV_PES, 0);
1478	break;
1479
1480	case AUDIO_SET_ID:
1481	break;
1482
1483	case AUDIO_SET_MIXER:
1484	{
1485	struct audio_mixer *amix = (struct audio_mixer *)parg;
1486	ret = av7110_set_volume(av7110, volleft: amix->volume_left, volright: amix->volume_right);
1487	break;
1488	}
1489
1490	case AUDIO_SET_STREAMTYPE:
1491	break;
1492
1493	default:
1494	ret = -ENOIOCTLCMD;
1495	}
1496
1497	mutex_unlock(lock: &av7110->ioctl_mutex);
1498	return ret;
1499	}
1500
1501
1502	static int dvb_video_open(struct inode *inode, struct file *file)
1503	{
1504	struct dvb_device *dvbdev = file->private_data;
1505	struct av7110 *av7110 = dvbdev->priv;
1506	int err;
1507
1508	dprintk(2, "av7110:%p, \n", av7110);
1509
1510	if ((err = dvb_generic_open(inode, file)) < 0)
1511	return err;
1512
1513	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1514	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->aout);
1515	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->avout);
1516	av7110->video_blank = 1;
1517	av7110->audiostate.AV_sync_state = 1;
1518	av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1519
1520	/* empty event queue */
1521	av7110->video_events.eventr = av7110->video_events.eventw = 0;
1522	}
1523
1524	return 0;
1525	}
1526
1527	static int dvb_video_release(struct inode *inode, struct file *file)
1528	{
1529	struct dvb_device *dvbdev = file->private_data;
1530	struct av7110 *av7110 = dvbdev->priv;
1531
1532	dprintk(2, "av7110:%p, \n", av7110);
1533
1534	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1535	av7110_av_stop(av7110, RP_VIDEO);
1536	}
1537
1538	return dvb_generic_release(inode, file);
1539	}
1540
1541	static int dvb_audio_open(struct inode *inode, struct file *file)
1542	{
1543	struct dvb_device *dvbdev = file->private_data;
1544	struct av7110 *av7110 = dvbdev->priv;
1545	int err = dvb_generic_open(inode, file);
1546
1547	dprintk(2, "av7110:%p, \n", av7110);
1548
1549	if (err < 0)
1550	return err;
1551	dvb_ringbuffer_flush_spinlock_wakeup(rbuf: &av7110->aout);
1552	av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1553	return 0;
1554	}
1555
1556	static int dvb_audio_release(struct inode *inode, struct file *file)
1557	{
1558	struct dvb_device *dvbdev = file->private_data;
1559	struct av7110 *av7110 = dvbdev->priv;
1560
1561	dprintk(2, "av7110:%p, \n", av7110);
1562
1563	av7110_av_stop(av7110, RP_AUDIO);
1564	return dvb_generic_release(inode, file);
1565	}
1566
1567
1568
1569	/******************************************************************************
1570	* driver registration
1571	******************************************************************************/
1572
1573	static const struct file_operations dvb_video_fops = {
1574	.owner = THIS_MODULE,
1575	.write = dvb_video_write,
1576	.unlocked_ioctl = dvb_generic_ioctl,
1577	.compat_ioctl = dvb_generic_ioctl,
1578	.open = dvb_video_open,
1579	.release = dvb_video_release,
1580	.poll = dvb_video_poll,
1581	.llseek = noop_llseek,
1582	};
1583
1584	static struct dvb_device dvbdev_video = {
1585	.priv = NULL,
1586	.users = 6,
1587	.readers = 5, /* arbitrary */
1588	.writers = 1,
1589	.fops = &dvb_video_fops,
1590	.kernel_ioctl = dvb_video_ioctl,
1591	};
1592
1593	static const struct file_operations dvb_audio_fops = {
1594	.owner = THIS_MODULE,
1595	.write = dvb_audio_write,
1596	.unlocked_ioctl = dvb_generic_ioctl,
1597	.compat_ioctl = dvb_generic_ioctl,
1598	.open = dvb_audio_open,
1599	.release = dvb_audio_release,
1600	.poll = dvb_audio_poll,
1601	.llseek = noop_llseek,
1602	};
1603
1604	static struct dvb_device dvbdev_audio = {
1605	.priv = NULL,
1606	.users = 1,
1607	.writers = 1,
1608	.fops = &dvb_audio_fops,
1609	.kernel_ioctl = dvb_audio_ioctl,
1610	};
1611
1612
1613	int av7110_av_register(struct av7110 *av7110)
1614	{
1615	av7110->audiostate.AV_sync_state = 0;
1616	av7110->audiostate.mute_state = 0;
1617	av7110->audiostate.play_state = AUDIO_STOPPED;
1618	av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1619	av7110->audiostate.channel_select = AUDIO_STEREO;
1620	av7110->audiostate.bypass_mode = 0;
1621
1622	av7110->videostate.video_blank = 0;
1623	av7110->videostate.play_state = VIDEO_STOPPED;
1624	av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1625	av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1626	av7110->videostate.display_format = VIDEO_LETTER_BOX;
1627	av7110->display_ar = VIDEO_FORMAT_4_3;
1628	av7110->display_panscan = VID_VC_AND_PS_PREF;
1629
1630	init_waitqueue_head(&av7110->video_events.wait_queue);
1631	spin_lock_init(&av7110->video_events.lock);
1632	av7110->video_events.eventw = av7110->video_events.eventr = 0;
1633	av7110->video_events.overflow = 0;
1634	memset(&av7110->video_size, 0, sizeof (video_size_t));
1635
1636	dvb_register_device(adap: &av7110->dvb_adapter, pdvbdev: &av7110->video_dev,
1637	template: &dvbdev_video, priv: av7110, type: DVB_DEVICE_VIDEO, demux_sink_pads: 0);
1638
1639	dvb_register_device(adap: &av7110->dvb_adapter, pdvbdev: &av7110->audio_dev,
1640	template: &dvbdev_audio, priv: av7110, type: DVB_DEVICE_AUDIO, demux_sink_pads: 0);
1641
1642	return 0;
1643	}
1644
1645	void av7110_av_unregister(struct av7110 *av7110)
1646	{
1647	dvb_unregister_device(dvbdev: av7110->audio_dev);
1648	dvb_unregister_device(dvbdev: av7110->video_dev);
1649	}
1650
1651	int av7110_av_init(struct av7110 *av7110)
1652	{
1653	void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1654	int i, ret;
1655
1656	for (i = 0; i < 2; i++) {
1657	struct ipack *ipack = av7110->ipack + i;
1658
1659	ret = av7110_ipack_init(p: ipack, IPACKS, func: play[i]);
1660	if (ret < 0) {
1661	if (i)
1662	av7110_ipack_free(p: --ipack);
1663	goto out;
1664	}
1665	ipack->data = av7110;
1666	}
1667
1668	dvb_ringbuffer_init(rbuf: &av7110->avout, data: av7110->iobuf, AVOUTLEN);
1669	dvb_ringbuffer_init(rbuf: &av7110->aout, data: av7110->iobuf + AVOUTLEN, AOUTLEN);
1670
1671	av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1672	av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1673	out:
1674	return ret;
1675	}
1676
1677	void av7110_av_exit(struct av7110 *av7110)
1678	{
1679	av7110_ipack_free(p: &av7110->ipack[0]);
1680	av7110_ipack_free(p: &av7110->ipack[1]);
1681	}
1682