1 /*
2  * av7110_av.c: audio and video MPEG decoder stuff
3  *
4  * Copyright (C) 1999-2002 Ralph  Metzler
5  *                       & Marcus Metzler for convergence integrated media GmbH
6  *
7  * originally based on code by:
8  * Copyright (C) 1998,1999 Christian Theiss <mistert@rz.fh-augsburg.de>
9  *
10  * This program is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU General Public License
12  * as published by the Free Software Foundation; either version 2
13  * of the License, or (at your option) any later version.
14  *
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
26  *
27  *
28  * the project's page is at http://www.linuxtv.org/
29  */
30 
31 #include <linux/types.h>
32 #include <linux/kernel.h>
33 #include <linux/string.h>
34 #include <linux/delay.h>
35 #include <linux/fs.h>
36 
37 #include "av7110.h"
38 #include "av7110_hw.h"
39 #include "av7110_av.h"
40 #include "av7110_ipack.h"
41 
42 /* MPEG-2 (ISO 13818 / H.222.0) stream types */
43 #define PROG_STREAM_MAP  0xBC
44 #define PRIVATE_STREAM1  0xBD
45 #define PADDING_STREAM	 0xBE
46 #define PRIVATE_STREAM2  0xBF
47 #define AUDIO_STREAM_S	 0xC0
48 #define AUDIO_STREAM_E	 0xDF
49 #define VIDEO_STREAM_S	 0xE0
50 #define VIDEO_STREAM_E	 0xEF
51 #define ECM_STREAM	 0xF0
52 #define EMM_STREAM	 0xF1
53 #define DSM_CC_STREAM	 0xF2
54 #define ISO13522_STREAM  0xF3
55 #define PROG_STREAM_DIR  0xFF
56 
57 #define PTS_DTS_FLAGS	 0xC0
58 
59 //pts_dts flags
60 #define PTS_ONLY	 0x80
61 #define PTS_DTS		 0xC0
62 #define TS_SIZE		 188
63 #define TRANS_ERROR	 0x80
64 #define PAY_START	 0x40
65 #define TRANS_PRIO	 0x20
66 #define PID_MASK_HI	 0x1F
67 //flags
68 #define TRANS_SCRMBL1	 0x80
69 #define TRANS_SCRMBL2	 0x40
70 #define ADAPT_FIELD	 0x20
71 #define PAYLOAD		 0x10
72 #define COUNT_MASK	 0x0F
73 
74 // adaptation flags
75 #define DISCON_IND	 0x80
76 #define RAND_ACC_IND	 0x40
77 #define ES_PRI_IND	 0x20
78 #define PCR_FLAG	 0x10
79 #define OPCR_FLAG	 0x08
80 #define SPLICE_FLAG	 0x04
81 #define TRANS_PRIV	 0x02
82 #define ADAP_EXT_FLAG	 0x01
83 
84 // adaptation extension flags
85 #define LTW_FLAG	 0x80
86 #define PIECE_RATE	 0x40
87 #define SEAM_SPLICE	 0x20
88 
89 
90 static void p_to_t(u8 const *buf, long int length, u16 pid,
91 		   u8 *counter, struct dvb_demux_feed *feed);
92 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len);
93 
94 
av7110_record_cb(struct dvb_filter_pes2ts * p2t,u8 * buf,size_t len)95 int av7110_record_cb(struct dvb_filter_pes2ts *p2t, u8 *buf, size_t len)
96 {
97 	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) p2t->priv;
98 
99 	if (!(dvbdmxfeed->ts_type & TS_PACKET))
100 		return 0;
101 	if (buf[3] == 0xe0)	 // video PES do not have a length in TS
102 		buf[4] = buf[5] = 0;
103 	if (dvbdmxfeed->ts_type & TS_PAYLOAD_ONLY)
104 		return dvbdmxfeed->cb.ts(buf, len, NULL, 0,
105 					 &dvbdmxfeed->feed.ts, DMX_OK);
106 	else
107 		return dvb_filter_pes2ts(p2t, buf, len, 1);
108 }
109 
dvb_filter_pes2ts_cb(void * priv,unsigned char * data)110 static int dvb_filter_pes2ts_cb(void *priv, unsigned char *data)
111 {
112 	struct dvb_demux_feed *dvbdmxfeed = (struct dvb_demux_feed *) priv;
113 
114 	dvbdmxfeed->cb.ts(data, 188, NULL, 0,
115 			  &dvbdmxfeed->feed.ts, DMX_OK);
116 	return 0;
117 }
118 
av7110_av_start_record(struct av7110 * av7110,int av,struct dvb_demux_feed * dvbdmxfeed)119 int av7110_av_start_record(struct av7110 *av7110, int av,
120 			   struct dvb_demux_feed *dvbdmxfeed)
121 {
122 	int ret = 0;
123 	struct dvb_demux *dvbdmx = dvbdmxfeed->demux;
124 
125 	dprintk(2, "av7110:%p, , dvb_demux_feed:%p\n", av7110, dvbdmxfeed);
126 
127 	if (av7110->playing || (av7110->rec_mode & av))
128 		return -EBUSY;
129 	av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
130 	dvbdmx->recording = 1;
131 	av7110->rec_mode |= av;
132 
133 	switch (av7110->rec_mode) {
134 	case RP_AUDIO:
135 		dvb_filter_pes2ts_init(&av7110->p2t[0],
136 				       dvbdmx->pesfilter[0]->pid,
137 				       dvb_filter_pes2ts_cb,
138 				       (void *) dvbdmx->pesfilter[0]);
139 		ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
140 		break;
141 
142 	case RP_VIDEO:
143 		dvb_filter_pes2ts_init(&av7110->p2t[1],
144 				       dvbdmx->pesfilter[1]->pid,
145 				       dvb_filter_pes2ts_cb,
146 				       (void *) dvbdmx->pesfilter[1]);
147 		ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
148 		break;
149 
150 	case RP_AV:
151 		dvb_filter_pes2ts_init(&av7110->p2t[0],
152 				       dvbdmx->pesfilter[0]->pid,
153 				       dvb_filter_pes2ts_cb,
154 				       (void *) dvbdmx->pesfilter[0]);
155 		dvb_filter_pes2ts_init(&av7110->p2t[1],
156 				       dvbdmx->pesfilter[1]->pid,
157 				       dvb_filter_pes2ts_cb,
158 				       (void *) dvbdmx->pesfilter[1]);
159 		ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AV_PES, 0);
160 		break;
161 	}
162 	return ret;
163 }
164 
av7110_av_start_play(struct av7110 * av7110,int av)165 int av7110_av_start_play(struct av7110 *av7110, int av)
166 {
167 	int ret = 0;
168 	dprintk(2, "av7110:%p, \n", av7110);
169 
170 	if (av7110->rec_mode)
171 		return -EBUSY;
172 	if (av7110->playing & av)
173 		return -EBUSY;
174 
175 	av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
176 
177 	if (av7110->playing == RP_NONE) {
178 		av7110_ipack_reset(&av7110->ipack[0]);
179 		av7110_ipack_reset(&av7110->ipack[1]);
180 	}
181 
182 	av7110->playing |= av;
183 	switch (av7110->playing) {
184 	case RP_AUDIO:
185 		ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
186 		break;
187 	case RP_VIDEO:
188 		ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
189 		av7110->sinfo = 0;
190 		break;
191 	case RP_AV:
192 		av7110->sinfo = 0;
193 		ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AV_PES, 0);
194 		break;
195 	}
196 	return ret;
197 }
198 
av7110_av_stop(struct av7110 * av7110,int av)199 int av7110_av_stop(struct av7110 *av7110, int av)
200 {
201 	int ret = 0;
202 	dprintk(2, "av7110:%p, \n", av7110);
203 
204 	if (!(av7110->playing & av) && !(av7110->rec_mode & av))
205 		return 0;
206 	av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
207 	if (av7110->playing) {
208 		av7110->playing &= ~av;
209 		switch (av7110->playing) {
210 		case RP_AUDIO:
211 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, AudioPES, 0);
212 			break;
213 		case RP_VIDEO:
214 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Play, 2, VideoPES, 0);
215 			break;
216 		case RP_NONE:
217 			ret = av7110_set_vidmode(av7110, av7110->vidmode);
218 			break;
219 		}
220 	} else {
221 		av7110->rec_mode &= ~av;
222 		switch (av7110->rec_mode) {
223 		case RP_AUDIO:
224 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, AudioPES, 0);
225 			break;
226 		case RP_VIDEO:
227 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Record, 2, VideoPES, 0);
228 			break;
229 		case RP_NONE:
230 			break;
231 		}
232 	}
233 	return ret;
234 }
235 
236 
av7110_pes_play(void * dest,struct dvb_ringbuffer * buf,int dlen)237 int av7110_pes_play(void *dest, struct dvb_ringbuffer *buf, int dlen)
238 {
239 	int len;
240 	u32 sync;
241 	u16 blen;
242 
243 	if (!dlen) {
244 		wake_up(&buf->queue);
245 		return -1;
246 	}
247 	while (1) {
248 		len = dvb_ringbuffer_avail(buf);
249 		if (len < 6) {
250 			wake_up(&buf->queue);
251 			return -1;
252 		}
253 		sync =  DVB_RINGBUFFER_PEEK(buf, 0) << 24;
254 		sync |= DVB_RINGBUFFER_PEEK(buf, 1) << 16;
255 		sync |= DVB_RINGBUFFER_PEEK(buf, 2) << 8;
256 		sync |= DVB_RINGBUFFER_PEEK(buf, 3);
257 
258 		if (((sync &~ 0x0f) == 0x000001e0) ||
259 		    ((sync &~ 0x1f) == 0x000001c0) ||
260 		    (sync == 0x000001bd))
261 			break;
262 		printk("resync\n");
263 		DVB_RINGBUFFER_SKIP(buf, 1);
264 	}
265 	blen =  DVB_RINGBUFFER_PEEK(buf, 4) << 8;
266 	blen |= DVB_RINGBUFFER_PEEK(buf, 5);
267 	blen += 6;
268 	if (len < blen || blen > dlen) {
269 		//printk("buffer empty - avail %d blen %u dlen %d\n", len, blen, dlen);
270 		wake_up(&buf->queue);
271 		return -1;
272 	}
273 
274 	dvb_ringbuffer_read(buf, dest, (size_t) blen);
275 
276 	dprintk(2, "pread=0x%08lx, pwrite=0x%08lx\n",
277 	       (unsigned long) buf->pread, (unsigned long) buf->pwrite);
278 	wake_up(&buf->queue);
279 	return blen;
280 }
281 
282 
av7110_set_volume(struct av7110 * av7110,int volleft,int volright)283 int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
284 {
285 	int err, vol, val, balance = 0;
286 
287 	dprintk(2, "av7110:%p, \n", av7110);
288 
289 	av7110->mixer.volume_left = volleft;
290 	av7110->mixer.volume_right = volright;
291 
292 	switch (av7110->adac_type) {
293 	case DVB_ADAC_TI:
294 		volleft = (volleft * 256) / 1036;
295 		volright = (volright * 256) / 1036;
296 		if (volleft > 0x3f)
297 			volleft = 0x3f;
298 		if (volright > 0x3f)
299 			volright = 0x3f;
300 		if ((err = SendDAC(av7110, 3, 0x80 + volleft)))
301 			return err;
302 		return SendDAC(av7110, 4, volright);
303 
304 	case DVB_ADAC_CRYSTAL:
305 		volleft = 127 - volleft / 2;
306 		volright = 127 - volright / 2;
307 		i2c_writereg(av7110, 0x20, 0x03, volleft);
308 		i2c_writereg(av7110, 0x20, 0x04, volright);
309 		return 0;
310 
311 	case DVB_ADAC_MSP34x0:
312 		vol  = (volleft > volright) ? volleft : volright;
313 		val	= (vol * 0x73 / 255) << 8;
314 		if (vol > 0)
315 		       balance = ((volright - volleft) * 127) / vol;
316 		msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
317 		msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
318 		msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
319 		return 0;
320 
321 	case DVB_ADAC_MSP34x5:
322 		vol = (volleft > volright) ? volleft : volright;
323 		val = (vol * 0x73 / 255) << 8;
324 		if (vol > 0)
325 			balance = ((volright - volleft) * 127) / vol;
326 		msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
327 		msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
328 		return 0;
329 	}
330 
331 	return 0;
332 }
333 
av7110_set_vidmode(struct av7110 * av7110,enum av7110_video_mode mode)334 int av7110_set_vidmode(struct av7110 *av7110, enum av7110_video_mode mode)
335 {
336 	int ret;
337 	dprintk(2, "av7110:%p, \n", av7110);
338 
339 	ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, LoadVidCode, 1, mode);
340 
341 	if (!ret && !av7110->playing) {
342 		ret = ChangePIDs(av7110, av7110->pids[DMX_PES_VIDEO],
343 			   av7110->pids[DMX_PES_AUDIO],
344 			   av7110->pids[DMX_PES_TELETEXT],
345 			   0, av7110->pids[DMX_PES_PCR]);
346 		if (!ret)
347 			ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, Scan, 0);
348 	}
349 	return ret;
350 }
351 
352 
353 static enum av7110_video_mode sw2mode[16] = {
354 	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
355 	AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_PAL,
356 	AV7110_VIDEO_MODE_NTSC, AV7110_VIDEO_MODE_NTSC,
357 	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_NTSC,
358 	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
359 	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
360 	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
361 	AV7110_VIDEO_MODE_PAL, AV7110_VIDEO_MODE_PAL,
362 };
363 
get_video_format(struct av7110 * av7110,u8 * buf,int count)364 static int get_video_format(struct av7110 *av7110, u8 *buf, int count)
365 {
366 	int i;
367 	int hsize, vsize;
368 	int sw;
369 	u8 *p;
370 	int ret = 0;
371 
372 	dprintk(2, "av7110:%p, \n", av7110);
373 
374 	if (av7110->sinfo)
375 		return 0;
376 	for (i = 7; i < count - 10; i++) {
377 		p = buf + i;
378 		if (p[0] || p[1] || p[2] != 0x01 || p[3] != 0xb3)
379 			continue;
380 		p += 4;
381 		hsize = ((p[1] &0xF0) >> 4) | (p[0] << 4);
382 		vsize = ((p[1] &0x0F) << 8) | (p[2]);
383 		sw = (p[3] & 0x0F);
384 		ret = av7110_set_vidmode(av7110, sw2mode[sw]);
385 		if (!ret) {
386 			dprintk(2, "playback %dx%d fr=%d\n", hsize, vsize, sw);
387 			av7110->sinfo = 1;
388 		}
389 		break;
390 	}
391 	return ret;
392 }
393 
394 
395 /****************************************************************************
396  * I/O buffer management and control
397  ****************************************************************************/
398 
aux_ring_buffer_write(struct dvb_ringbuffer * rbuf,const u8 * buf,unsigned long count)399 static inline long aux_ring_buffer_write(struct dvb_ringbuffer *rbuf,
400 					 const u8 *buf, unsigned long count)
401 {
402 	unsigned long todo = count;
403 	int free;
404 
405 	while (todo > 0) {
406 		if (dvb_ringbuffer_free(rbuf) < 2048) {
407 			if (wait_event_interruptible(rbuf->queue,
408 						     (dvb_ringbuffer_free(rbuf) >= 2048)))
409 				return count - todo;
410 		}
411 		free = dvb_ringbuffer_free(rbuf);
412 		if (free > todo)
413 			free = todo;
414 		dvb_ringbuffer_write(rbuf, buf, free);
415 		todo -= free;
416 		buf += free;
417 	}
418 
419 	return count - todo;
420 }
421 
play_video_cb(u8 * buf,int count,void * priv)422 static void play_video_cb(u8 *buf, int count, void *priv)
423 {
424 	struct av7110 *av7110 = (struct av7110 *) priv;
425 	dprintk(2, "av7110:%p, \n", av7110);
426 
427 	if ((buf[3] & 0xe0) == 0xe0) {
428 		get_video_format(av7110, buf, count);
429 		aux_ring_buffer_write(&av7110->avout, buf, count);
430 	} else
431 		aux_ring_buffer_write(&av7110->aout, buf, count);
432 }
433 
play_audio_cb(u8 * buf,int count,void * priv)434 static void play_audio_cb(u8 *buf, int count, void *priv)
435 {
436 	struct av7110 *av7110 = (struct av7110 *) priv;
437 	dprintk(2, "av7110:%p, \n", av7110);
438 
439 	aux_ring_buffer_write(&av7110->aout, buf, count);
440 }
441 
442 
443 #define FREE_COND_TS (dvb_ringbuffer_free(rb) >= 4096)
444 
ts_play(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)445 static ssize_t ts_play(struct av7110 *av7110, const char __user *buf,
446 		       unsigned long count, int nonblock, int type)
447 {
448 	struct dvb_ringbuffer *rb;
449 	u8 *kb;
450 	unsigned long todo = count;
451 
452 	dprintk(2, "%s: type %d cnt %lu\n", __func__, type, count);
453 
454 	rb = (type) ? &av7110->avout : &av7110->aout;
455 	kb = av7110->kbuf[type];
456 
457 	if (!kb)
458 		return -ENOBUFS;
459 
460 	if (nonblock && !FREE_COND_TS)
461 		return -EWOULDBLOCK;
462 
463 	while (todo >= TS_SIZE) {
464 		if (!FREE_COND_TS) {
465 			if (nonblock)
466 				return count - todo;
467 			if (wait_event_interruptible(rb->queue, FREE_COND_TS))
468 				return count - todo;
469 		}
470 		if (copy_from_user(kb, buf, TS_SIZE))
471 			return -EFAULT;
472 		write_ts_to_decoder(av7110, type, kb, TS_SIZE);
473 		todo -= TS_SIZE;
474 		buf += TS_SIZE;
475 	}
476 
477 	return count - todo;
478 }
479 
480 
481 #define FREE_COND (dvb_ringbuffer_free(&av7110->avout) >= 20 * 1024 && \
482 		   dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
483 
dvb_play(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)484 static ssize_t dvb_play(struct av7110 *av7110, const char __user *buf,
485 			unsigned long count, int nonblock, int type)
486 {
487 	unsigned long todo = count, n;
488 	dprintk(2, "av7110:%p, \n", av7110);
489 
490 	if (!av7110->kbuf[type])
491 		return -ENOBUFS;
492 
493 	if (nonblock && !FREE_COND)
494 		return -EWOULDBLOCK;
495 
496 	while (todo > 0) {
497 		if (!FREE_COND) {
498 			if (nonblock)
499 				return count - todo;
500 			if (wait_event_interruptible(av7110->avout.queue,
501 						     FREE_COND))
502 				return count - todo;
503 		}
504 		n = todo;
505 		if (n > IPACKS * 2)
506 			n = IPACKS * 2;
507 		if (copy_from_user(av7110->kbuf[type], buf, n))
508 			return -EFAULT;
509 		av7110_ipack_instant_repack(av7110->kbuf[type], n,
510 					    &av7110->ipack[type]);
511 		todo -= n;
512 		buf += n;
513 	}
514 	return count - todo;
515 }
516 
dvb_play_kernel(struct av7110 * av7110,const u8 * buf,unsigned long count,int nonblock,int type)517 static ssize_t dvb_play_kernel(struct av7110 *av7110, const u8 *buf,
518 			unsigned long count, int nonblock, int type)
519 {
520 	unsigned long todo = count, n;
521 	dprintk(2, "av7110:%p, \n", av7110);
522 
523 	if (!av7110->kbuf[type])
524 		return -ENOBUFS;
525 
526 	if (nonblock && !FREE_COND)
527 		return -EWOULDBLOCK;
528 
529 	while (todo > 0) {
530 		if (!FREE_COND) {
531 			if (nonblock)
532 				return count - todo;
533 			if (wait_event_interruptible(av7110->avout.queue,
534 						     FREE_COND))
535 				return count - todo;
536 		}
537 		n = todo;
538 		if (n > IPACKS * 2)
539 			n = IPACKS * 2;
540 		av7110_ipack_instant_repack(buf, n, &av7110->ipack[type]);
541 		todo -= n;
542 		buf += n;
543 	}
544 	return count - todo;
545 }
546 
dvb_aplay(struct av7110 * av7110,const char __user * buf,unsigned long count,int nonblock,int type)547 static ssize_t dvb_aplay(struct av7110 *av7110, const char __user *buf,
548 			 unsigned long count, int nonblock, int type)
549 {
550 	unsigned long todo = count, n;
551 	dprintk(2, "av7110:%p, \n", av7110);
552 
553 	if (!av7110->kbuf[type])
554 		return -ENOBUFS;
555 	if (nonblock && dvb_ringbuffer_free(&av7110->aout) < 20 * 1024)
556 		return -EWOULDBLOCK;
557 
558 	while (todo > 0) {
559 		if (dvb_ringbuffer_free(&av7110->aout) < 20 * 1024) {
560 			if (nonblock)
561 				return count - todo;
562 			if (wait_event_interruptible(av7110->aout.queue,
563 					(dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)))
564 				return count-todo;
565 		}
566 		n = todo;
567 		if (n > IPACKS * 2)
568 			n = IPACKS * 2;
569 		if (copy_from_user(av7110->kbuf[type], buf, n))
570 			return -EFAULT;
571 		av7110_ipack_instant_repack(av7110->kbuf[type], n,
572 					    &av7110->ipack[type]);
573 		todo -= n;
574 		buf += n;
575 	}
576 	return count - todo;
577 }
578 
av7110_p2t_init(struct av7110_p2t * p,struct dvb_demux_feed * feed)579 void av7110_p2t_init(struct av7110_p2t *p, struct dvb_demux_feed *feed)
580 {
581 	memset(p->pes, 0, TS_SIZE);
582 	p->counter = 0;
583 	p->pos = 0;
584 	p->frags = 0;
585 	if (feed)
586 		p->feed = feed;
587 }
588 
clear_p2t(struct av7110_p2t * p)589 static void clear_p2t(struct av7110_p2t *p)
590 {
591 	memset(p->pes, 0, TS_SIZE);
592 //	p->counter = 0;
593 	p->pos = 0;
594 	p->frags = 0;
595 }
596 
597 
find_pes_header(u8 const * buf,long int length,int * frags)598 static int find_pes_header(u8 const *buf, long int length, int *frags)
599 {
600 	int c = 0;
601 	int found = 0;
602 
603 	*frags = 0;
604 
605 	while (c < length - 3 && !found) {
606 		if (buf[c] == 0x00 && buf[c + 1] == 0x00 &&
607 		    buf[c + 2] == 0x01) {
608 			switch ( buf[c + 3] ) {
609 			case PROG_STREAM_MAP:
610 			case PRIVATE_STREAM2:
611 			case PROG_STREAM_DIR:
612 			case ECM_STREAM     :
613 			case EMM_STREAM     :
614 			case PADDING_STREAM :
615 			case DSM_CC_STREAM  :
616 			case ISO13522_STREAM:
617 			case PRIVATE_STREAM1:
618 			case AUDIO_STREAM_S ... AUDIO_STREAM_E:
619 			case VIDEO_STREAM_S ... VIDEO_STREAM_E:
620 				found = 1;
621 				break;
622 
623 			default:
624 				c++;
625 				break;
626 			}
627 		} else
628 			c++;
629 	}
630 	if (c == length - 3 && !found) {
631 		if (buf[length - 1] == 0x00)
632 			*frags = 1;
633 		if (buf[length - 2] == 0x00 &&
634 		    buf[length - 1] == 0x00)
635 			*frags = 2;
636 		if (buf[length - 3] == 0x00 &&
637 		    buf[length - 2] == 0x00 &&
638 		    buf[length - 1] == 0x01)
639 			*frags = 3;
640 		return -1;
641 	}
642 
643 	return c;
644 }
645 
av7110_p2t_write(u8 const * buf,long int length,u16 pid,struct av7110_p2t * p)646 void av7110_p2t_write(u8 const *buf, long int length, u16 pid, struct av7110_p2t *p)
647 {
648 	int c, c2, l, add;
649 	int check, rest;
650 
651 	c = 0;
652 	c2 = 0;
653 	if (p->frags){
654 		check = 0;
655 		switch(p->frags) {
656 		case 1:
657 			if (buf[c] == 0x00 && buf[c + 1] == 0x01) {
658 				check = 1;
659 				c += 2;
660 			}
661 			break;
662 		case 2:
663 			if (buf[c] == 0x01) {
664 				check = 1;
665 				c++;
666 			}
667 			break;
668 		case 3:
669 			check = 1;
670 		}
671 		if (check) {
672 			switch (buf[c]) {
673 			case PROG_STREAM_MAP:
674 			case PRIVATE_STREAM2:
675 			case PROG_STREAM_DIR:
676 			case ECM_STREAM     :
677 			case EMM_STREAM     :
678 			case PADDING_STREAM :
679 			case DSM_CC_STREAM  :
680 			case ISO13522_STREAM:
681 			case PRIVATE_STREAM1:
682 			case AUDIO_STREAM_S ... AUDIO_STREAM_E:
683 			case VIDEO_STREAM_S ... VIDEO_STREAM_E:
684 				p->pes[0] = 0x00;
685 				p->pes[1] = 0x00;
686 				p->pes[2] = 0x01;
687 				p->pes[3] = buf[c];
688 				p->pos = 4;
689 				memcpy(p->pes + p->pos, buf + c, (TS_SIZE - 4) - p->pos);
690 				c += (TS_SIZE - 4) - p->pos;
691 				p_to_t(p->pes, (TS_SIZE - 4), pid, &p->counter, p->feed);
692 				clear_p2t(p);
693 				break;
694 
695 			default:
696 				c = 0;
697 				break;
698 			}
699 		}
700 		p->frags = 0;
701 	}
702 
703 	if (p->pos) {
704 		c2 = find_pes_header(buf + c, length - c, &p->frags);
705 		if (c2 >= 0 && c2 < (TS_SIZE - 4) - p->pos)
706 			l = c2+c;
707 		else
708 			l = (TS_SIZE - 4) - p->pos;
709 		memcpy(p->pes + p->pos, buf, l);
710 		c += l;
711 		p->pos += l;
712 		p_to_t(p->pes, p->pos, pid, &p->counter, p->feed);
713 		clear_p2t(p);
714 	}
715 
716 	add = 0;
717 	while (c < length) {
718 		c2 = find_pes_header(buf + c + add, length - c - add, &p->frags);
719 		if (c2 >= 0) {
720 			c2 += c + add;
721 			if (c2 > c){
722 				p_to_t(buf + c, c2 - c, pid, &p->counter, p->feed);
723 				c = c2;
724 				clear_p2t(p);
725 				add = 0;
726 			} else
727 				add = 1;
728 		} else {
729 			l = length - c;
730 			rest = l % (TS_SIZE - 4);
731 			l -= rest;
732 			p_to_t(buf + c, l, pid, &p->counter, p->feed);
733 			memcpy(p->pes, buf + c + l, rest);
734 			p->pos = rest;
735 			c = length;
736 		}
737 	}
738 }
739 
740 
write_ts_header2(u16 pid,u8 * counter,int pes_start,u8 * buf,u8 length)741 static int write_ts_header2(u16 pid, u8 *counter, int pes_start, u8 *buf, u8 length)
742 {
743 	int i;
744 	int c = 0;
745 	int fill;
746 	u8 tshead[4] = { 0x47, 0x00, 0x00, 0x10 };
747 
748 	fill = (TS_SIZE - 4) - length;
749 	if (pes_start)
750 		tshead[1] = 0x40;
751 	if (fill)
752 		tshead[3] = 0x30;
753 	tshead[1] |= (u8)((pid & 0x1F00) >> 8);
754 	tshead[2] |= (u8)(pid & 0x00FF);
755 	tshead[3] |= ((*counter)++ & 0x0F);
756 	memcpy(buf, tshead, 4);
757 	c += 4;
758 
759 	if (fill) {
760 		buf[4] = fill - 1;
761 		c++;
762 		if (fill > 1) {
763 			buf[5] = 0x00;
764 			c++;
765 		}
766 		for (i = 6; i < fill + 4; i++) {
767 			buf[i] = 0xFF;
768 			c++;
769 		}
770 	}
771 
772 	return c;
773 }
774 
775 
p_to_t(u8 const * buf,long int length,u16 pid,u8 * counter,struct dvb_demux_feed * feed)776 static void p_to_t(u8 const *buf, long int length, u16 pid, u8 *counter,
777 		   struct dvb_demux_feed *feed)
778 {
779 	int l, pes_start;
780 	u8 obuf[TS_SIZE];
781 	long c = 0;
782 
783 	pes_start = 0;
784 	if (length > 3 &&
785 	     buf[0] == 0x00 && buf[1] == 0x00 && buf[2] == 0x01)
786 		switch (buf[3]) {
787 			case PROG_STREAM_MAP:
788 			case PRIVATE_STREAM2:
789 			case PROG_STREAM_DIR:
790 			case ECM_STREAM     :
791 			case EMM_STREAM     :
792 			case PADDING_STREAM :
793 			case DSM_CC_STREAM  :
794 			case ISO13522_STREAM:
795 			case PRIVATE_STREAM1:
796 			case AUDIO_STREAM_S ... AUDIO_STREAM_E:
797 			case VIDEO_STREAM_S ... VIDEO_STREAM_E:
798 				pes_start = 1;
799 				break;
800 
801 			default:
802 				break;
803 		}
804 
805 	while (c < length) {
806 		memset(obuf, 0, TS_SIZE);
807 		if (length - c >= (TS_SIZE - 4)){
808 			l = write_ts_header2(pid, counter, pes_start,
809 					     obuf, (TS_SIZE - 4));
810 			memcpy(obuf + l, buf + c, TS_SIZE - l);
811 			c += TS_SIZE - l;
812 		} else {
813 			l = write_ts_header2(pid, counter, pes_start,
814 					     obuf, length - c);
815 			memcpy(obuf + l, buf + c, TS_SIZE - l);
816 			c = length;
817 		}
818 		feed->cb.ts(obuf, 188, NULL, 0, &feed->feed.ts, DMX_OK);
819 		pes_start = 0;
820 	}
821 }
822 
823 
write_ts_to_decoder(struct av7110 * av7110,int type,const u8 * buf,size_t len)824 static int write_ts_to_decoder(struct av7110 *av7110, int type, const u8 *buf, size_t len)
825 {
826 	struct ipack *ipack = &av7110->ipack[type];
827 
828 	if (buf[1] & TRANS_ERROR) {
829 		av7110_ipack_reset(ipack);
830 		return -1;
831 	}
832 
833 	if (!(buf[3] & PAYLOAD))
834 		return -1;
835 
836 	if (buf[1] & PAY_START)
837 		av7110_ipack_flush(ipack);
838 
839 	if (buf[3] & ADAPT_FIELD) {
840 		len -= buf[4] + 1;
841 		buf += buf[4] + 1;
842 		if (!len)
843 			return 0;
844 	}
845 
846 	av7110_ipack_instant_repack(buf + 4, len - 4, ipack);
847 	return 0;
848 }
849 
850 
av7110_write_to_decoder(struct dvb_demux_feed * feed,const u8 * buf,size_t len)851 int av7110_write_to_decoder(struct dvb_demux_feed *feed, const u8 *buf, size_t len)
852 {
853 	struct dvb_demux *demux = feed->demux;
854 	struct av7110 *av7110 = (struct av7110 *) demux->priv;
855 
856 	dprintk(2, "av7110:%p, \n", av7110);
857 
858 	if (av7110->full_ts && demux->dmx.frontend->source != DMX_MEMORY_FE)
859 		return 0;
860 
861 	switch (feed->pes_type) {
862 	case 0:
863 		if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
864 			return -EINVAL;
865 		break;
866 	case 1:
867 		if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
868 			return -EINVAL;
869 		break;
870 	default:
871 		return -1;
872 	}
873 
874 	return write_ts_to_decoder(av7110, feed->pes_type, buf, len);
875 }
876 
877 
878 
879 /******************************************************************************
880  * Video MPEG decoder events
881  ******************************************************************************/
dvb_video_add_event(struct av7110 * av7110,struct video_event * event)882 void dvb_video_add_event(struct av7110 *av7110, struct video_event *event)
883 {
884 	struct dvb_video_events *events = &av7110->video_events;
885 	int wp;
886 
887 	spin_lock_bh(&events->lock);
888 
889 	wp = (events->eventw + 1) % MAX_VIDEO_EVENT;
890 	if (wp == events->eventr) {
891 		events->overflow = 1;
892 		events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
893 	}
894 
895 	//FIXME: timestamp?
896 	memcpy(&events->events[events->eventw], event, sizeof(struct video_event));
897 	events->eventw = wp;
898 
899 	spin_unlock_bh(&events->lock);
900 
901 	wake_up_interruptible(&events->wait_queue);
902 }
903 
904 
dvb_video_get_event(struct av7110 * av7110,struct video_event * event,int flags)905 static int dvb_video_get_event (struct av7110 *av7110, struct video_event *event, int flags)
906 {
907 	struct dvb_video_events *events = &av7110->video_events;
908 
909 	if (events->overflow) {
910 		events->overflow = 0;
911 		return -EOVERFLOW;
912 	}
913 	if (events->eventw == events->eventr) {
914 		int ret;
915 
916 		if (flags & O_NONBLOCK)
917 			return -EWOULDBLOCK;
918 
919 		ret = wait_event_interruptible(events->wait_queue,
920 					       events->eventw != events->eventr);
921 		if (ret < 0)
922 			return ret;
923 	}
924 
925 	spin_lock_bh(&events->lock);
926 
927 	memcpy(event, &events->events[events->eventr],
928 	       sizeof(struct video_event));
929 	events->eventr = (events->eventr + 1) % MAX_VIDEO_EVENT;
930 
931 	spin_unlock_bh(&events->lock);
932 
933 	return 0;
934 }
935 
936 
937 /******************************************************************************
938  * DVB device file operations
939  ******************************************************************************/
940 
dvb_video_poll(struct file * file,poll_table * wait)941 static unsigned int dvb_video_poll(struct file *file, poll_table *wait)
942 {
943 	struct dvb_device *dvbdev = file->private_data;
944 	struct av7110 *av7110 = dvbdev->priv;
945 	unsigned int mask = 0;
946 
947 	dprintk(2, "av7110:%p, \n", av7110);
948 
949 	if ((file->f_flags & O_ACCMODE) != O_RDONLY)
950 		poll_wait(file, &av7110->avout.queue, wait);
951 
952 	poll_wait(file, &av7110->video_events.wait_queue, wait);
953 
954 	if (av7110->video_events.eventw != av7110->video_events.eventr)
955 		mask = POLLPRI;
956 
957 	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
958 		if (av7110->playing) {
959 			if (FREE_COND)
960 				mask |= (POLLOUT | POLLWRNORM);
961 			} else /* if not playing: may play if asked for */
962 				mask |= (POLLOUT | POLLWRNORM);
963 	}
964 
965 	return mask;
966 }
967 
dvb_video_write(struct file * file,const char __user * buf,size_t count,loff_t * ppos)968 static ssize_t dvb_video_write(struct file *file, const char __user *buf,
969 			       size_t count, loff_t *ppos)
970 {
971 	struct dvb_device *dvbdev = file->private_data;
972 	struct av7110 *av7110 = dvbdev->priv;
973 	unsigned char c;
974 
975 	dprintk(2, "av7110:%p, \n", av7110);
976 
977 	if ((file->f_flags & O_ACCMODE) == O_RDONLY)
978 		return -EPERM;
979 
980 	if (av7110->videostate.stream_source != VIDEO_SOURCE_MEMORY)
981 		return -EPERM;
982 
983 	if (get_user(c, buf))
984 		return -EFAULT;
985 	if (c == 0x47 && count % TS_SIZE == 0)
986 		return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
987 	else
988 		return dvb_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 1);
989 }
990 
dvb_audio_poll(struct file * file,poll_table * wait)991 static unsigned int dvb_audio_poll(struct file *file, poll_table *wait)
992 {
993 	struct dvb_device *dvbdev = file->private_data;
994 	struct av7110 *av7110 = dvbdev->priv;
995 	unsigned int mask = 0;
996 
997 	dprintk(2, "av7110:%p, \n", av7110);
998 
999 	poll_wait(file, &av7110->aout.queue, wait);
1000 
1001 	if (av7110->playing) {
1002 		if (dvb_ringbuffer_free(&av7110->aout) >= 20 * 1024)
1003 			mask |= (POLLOUT | POLLWRNORM);
1004 	} else /* if not playing: may play if asked for */
1005 		mask = (POLLOUT | POLLWRNORM);
1006 
1007 	return mask;
1008 }
1009 
dvb_audio_write(struct file * file,const char __user * buf,size_t count,loff_t * ppos)1010 static ssize_t dvb_audio_write(struct file *file, const char __user *buf,
1011 			       size_t count, loff_t *ppos)
1012 {
1013 	struct dvb_device *dvbdev = file->private_data;
1014 	struct av7110 *av7110 = dvbdev->priv;
1015 	unsigned char c;
1016 
1017 	dprintk(2, "av7110:%p, \n", av7110);
1018 
1019 	if (av7110->audiostate.stream_source != AUDIO_SOURCE_MEMORY) {
1020 		printk(KERN_ERR "not audio source memory\n");
1021 		return -EPERM;
1022 	}
1023 
1024 	if (get_user(c, buf))
1025 		return -EFAULT;
1026 	if (c == 0x47 && count % TS_SIZE == 0)
1027 		return ts_play(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1028 	else
1029 		return dvb_aplay(av7110, buf, count, file->f_flags & O_NONBLOCK, 0);
1030 }
1031 
1032 static u8 iframe_header[] = { 0x00, 0x00, 0x01, 0xe0, 0x00, 0x00, 0x80, 0x00, 0x00 };
1033 
1034 #define MIN_IFRAME 400000
1035 
play_iframe(struct av7110 * av7110,char __user * buf,unsigned int len,int nonblock)1036 static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len, int nonblock)
1037 {
1038 	unsigned i, n;
1039 	int progressive = 0;
1040 	int match = 0;
1041 
1042 	dprintk(2, "av7110:%p, \n", av7110);
1043 
1044 	if (!(av7110->playing & RP_VIDEO)) {
1045 		if (av7110_av_start_play(av7110, RP_VIDEO) < 0)
1046 			return -EBUSY;
1047 	}
1048 
1049 	/* search in buf for instances of 00 00 01 b5 1? */
1050 	for (i = 0; i < len; i++) {
1051 		unsigned char c;
1052 		if (get_user(c, buf + i))
1053 			return -EFAULT;
1054 		if (match == 5) {
1055 			progressive = c & 0x08;
1056 			match = 0;
1057 		}
1058 		if (c == 0x00) {
1059 			match = (match == 1 || match == 2) ? 2 : 1;
1060 			continue;
1061 		}
1062 		switch (match++) {
1063 		case 2: if (c == 0x01)
1064 				continue;
1065 			break;
1066 		case 3: if (c == 0xb5)
1067 				continue;
1068 			break;
1069 		case 4: if ((c & 0xf0) == 0x10)
1070 				continue;
1071 			break;
1072 		}
1073 		match = 0;
1074 	}
1075 
1076 	/* setting n always > 1, fixes problems when playing stillframes
1077 	   consisting of I- and P-Frames */
1078 	n = MIN_IFRAME / len + 1;
1079 
1080 	/* FIXME: nonblock? */
1081 	dvb_play_kernel(av7110, iframe_header, sizeof(iframe_header), 0, 1);
1082 
1083 	for (i = 0; i < n; i++)
1084 		dvb_play(av7110, buf, len, 0, 1);
1085 
1086 	av7110_ipack_flush(&av7110->ipack[1]);
1087 
1088 	if (progressive)
1089 		return vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1090 	else
1091 		return 0;
1092 }
1093 
1094 
dvb_video_ioctl(struct file * file,unsigned int cmd,void * parg)1095 static int dvb_video_ioctl(struct file *file,
1096 			   unsigned int cmd, void *parg)
1097 {
1098 	struct dvb_device *dvbdev = file->private_data;
1099 	struct av7110 *av7110 = dvbdev->priv;
1100 	unsigned long arg = (unsigned long) parg;
1101 	int ret = 0;
1102 
1103 	dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1104 
1105 	if ((file->f_flags & O_ACCMODE) == O_RDONLY) {
1106 		if ( cmd != VIDEO_GET_STATUS && cmd != VIDEO_GET_EVENT &&
1107 		     cmd != VIDEO_GET_SIZE ) {
1108 			return -EPERM;
1109 		}
1110 	}
1111 
1112 	switch (cmd) {
1113 	case VIDEO_STOP:
1114 		av7110->videostate.play_state = VIDEO_STOPPED;
1115 		if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY)
1116 			ret = av7110_av_stop(av7110, RP_VIDEO);
1117 		else
1118 			ret = vidcom(av7110, AV_VIDEO_CMD_STOP,
1119 			       av7110->videostate.video_blank ? 0 : 1);
1120 		if (!ret)
1121 			av7110->trickmode = TRICK_NONE;
1122 		break;
1123 
1124 	case VIDEO_PLAY:
1125 		av7110->trickmode = TRICK_NONE;
1126 		if (av7110->videostate.play_state == VIDEO_FREEZED) {
1127 			av7110->videostate.play_state = VIDEO_PLAYING;
1128 			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1129 			if (ret)
1130 				break;
1131 		}
1132 		if (av7110->videostate.stream_source == VIDEO_SOURCE_MEMORY) {
1133 			if (av7110->playing == RP_AV) {
1134 				ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Stop, 0);
1135 				if (ret)
1136 					break;
1137 				av7110->playing &= ~RP_VIDEO;
1138 			}
1139 			ret = av7110_av_start_play(av7110, RP_VIDEO);
1140 		}
1141 		if (!ret)
1142 			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1143 		if (!ret)
1144 			av7110->videostate.play_state = VIDEO_PLAYING;
1145 		break;
1146 
1147 	case VIDEO_FREEZE:
1148 		av7110->videostate.play_state = VIDEO_FREEZED;
1149 		if (av7110->playing & RP_VIDEO)
1150 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Pause, 0);
1151 		else
1152 			ret = vidcom(av7110, AV_VIDEO_CMD_FREEZE, 1);
1153 		if (!ret)
1154 			av7110->trickmode = TRICK_FREEZE;
1155 		break;
1156 
1157 	case VIDEO_CONTINUE:
1158 		if (av7110->playing & RP_VIDEO)
1159 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Continue, 0);
1160 		if (!ret)
1161 			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1162 		if (!ret) {
1163 			av7110->videostate.play_state = VIDEO_PLAYING;
1164 			av7110->trickmode = TRICK_NONE;
1165 		}
1166 		break;
1167 
1168 	case VIDEO_SELECT_SOURCE:
1169 		av7110->videostate.stream_source = (video_stream_source_t) arg;
1170 		break;
1171 
1172 	case VIDEO_SET_BLANK:
1173 		av7110->videostate.video_blank = (int) arg;
1174 		break;
1175 
1176 	case VIDEO_GET_STATUS:
1177 		memcpy(parg, &av7110->videostate, sizeof(struct video_status));
1178 		break;
1179 
1180 	case VIDEO_GET_EVENT:
1181 		ret = dvb_video_get_event(av7110, parg, file->f_flags);
1182 		break;
1183 
1184 	case VIDEO_GET_SIZE:
1185 		memcpy(parg, &av7110->video_size, sizeof(video_size_t));
1186 		break;
1187 
1188 	case VIDEO_SET_DISPLAY_FORMAT:
1189 	{
1190 		video_displayformat_t format = (video_displayformat_t) arg;
1191 		switch (format) {
1192 		case VIDEO_PAN_SCAN:
1193 			av7110->display_panscan = VID_PAN_SCAN_PREF;
1194 			break;
1195 		case VIDEO_LETTER_BOX:
1196 			av7110->display_panscan = VID_VC_AND_PS_PREF;
1197 			break;
1198 		case VIDEO_CENTER_CUT_OUT:
1199 			av7110->display_panscan = VID_CENTRE_CUT_PREF;
1200 			break;
1201 		default:
1202 			ret = -EINVAL;
1203 		}
1204 		if (ret < 0)
1205 			break;
1206 		av7110->videostate.display_format = format;
1207 		ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetPanScanType,
1208 				    1, av7110->display_panscan);
1209 		break;
1210 	}
1211 
1212 	case VIDEO_SET_FORMAT:
1213 		if (arg > 1) {
1214 			ret = -EINVAL;
1215 			break;
1216 		}
1217 		av7110->display_ar = arg;
1218 		ret = av7110_fw_cmd(av7110, COMTYPE_ENCODER, SetMonitorType,
1219 				    1, (u16) arg);
1220 		break;
1221 
1222 	case VIDEO_STILLPICTURE:
1223 	{
1224 		struct video_still_picture *pic =
1225 			(struct video_still_picture *) parg;
1226 		av7110->videostate.stream_source = VIDEO_SOURCE_MEMORY;
1227 		dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1228 		ret = play_iframe(av7110, pic->iFrame, pic->size,
1229 				  file->f_flags & O_NONBLOCK);
1230 		break;
1231 	}
1232 
1233 	case VIDEO_FAST_FORWARD:
1234 		//note: arg is ignored by firmware
1235 		if (av7110->playing & RP_VIDEO)
1236 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1237 					    __Scan_I, 2, AV_PES, 0);
1238 		else
1239 			ret = vidcom(av7110, AV_VIDEO_CMD_FFWD, arg);
1240 		if (!ret) {
1241 			av7110->trickmode = TRICK_FAST;
1242 			av7110->videostate.play_state = VIDEO_PLAYING;
1243 		}
1244 		break;
1245 
1246 	case VIDEO_SLOWMOTION:
1247 		if (av7110->playing&RP_VIDEO) {
1248 			if (av7110->trickmode != TRICK_SLOW)
1249 				ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY, __Slow, 2, 0, 0);
1250 			if (!ret)
1251 				ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1252 		} else {
1253 			ret = vidcom(av7110, AV_VIDEO_CMD_PLAY, 0);
1254 			if (!ret)
1255 				ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 0);
1256 			if (!ret)
1257 				ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1258 		}
1259 		if (!ret) {
1260 			av7110->trickmode = TRICK_SLOW;
1261 			av7110->videostate.play_state = VIDEO_PLAYING;
1262 		}
1263 		break;
1264 
1265 	case VIDEO_GET_CAPABILITIES:
1266 		*(int *)parg = VIDEO_CAP_MPEG1 | VIDEO_CAP_MPEG2 |
1267 			VIDEO_CAP_SYS | VIDEO_CAP_PROG;
1268 		break;
1269 
1270 	case VIDEO_CLEAR_BUFFER:
1271 		dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1272 		av7110_ipack_reset(&av7110->ipack[1]);
1273 		if (av7110->playing == RP_AV) {
1274 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1275 					    __Play, 2, AV_PES, 0);
1276 			if (ret)
1277 				break;
1278 			if (av7110->trickmode == TRICK_FAST)
1279 				ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1280 						    __Scan_I, 2, AV_PES, 0);
1281 			if (av7110->trickmode == TRICK_SLOW) {
1282 				ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1283 						    __Slow, 2, 0, 0);
1284 				if (!ret)
1285 					ret = vidcom(av7110, AV_VIDEO_CMD_SLOW, arg);
1286 			}
1287 			if (av7110->trickmode == TRICK_FREEZE)
1288 				ret = vidcom(av7110, AV_VIDEO_CMD_STOP, 1);
1289 		}
1290 		break;
1291 
1292 	case VIDEO_SET_STREAMTYPE:
1293 		break;
1294 
1295 	default:
1296 		ret = -ENOIOCTLCMD;
1297 		break;
1298 	}
1299 
1300 	return ret;
1301 }
1302 
dvb_audio_ioctl(struct file * file,unsigned int cmd,void * parg)1303 static int dvb_audio_ioctl(struct file *file,
1304 			   unsigned int cmd, void *parg)
1305 {
1306 	struct dvb_device *dvbdev = file->private_data;
1307 	struct av7110 *av7110 = dvbdev->priv;
1308 	unsigned long arg = (unsigned long) parg;
1309 	int ret = 0;
1310 
1311 	dprintk(1, "av7110:%p, cmd=%04x\n", av7110,cmd);
1312 
1313 	if (((file->f_flags & O_ACCMODE) == O_RDONLY) &&
1314 	    (cmd != AUDIO_GET_STATUS))
1315 		return -EPERM;
1316 
1317 	switch (cmd) {
1318 	case AUDIO_STOP:
1319 		if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1320 			ret = av7110_av_stop(av7110, RP_AUDIO);
1321 		else
1322 			ret = audcom(av7110, AUDIO_CMD_MUTE);
1323 		if (!ret)
1324 			av7110->audiostate.play_state = AUDIO_STOPPED;
1325 		break;
1326 
1327 	case AUDIO_PLAY:
1328 		if (av7110->audiostate.stream_source == AUDIO_SOURCE_MEMORY)
1329 			ret = av7110_av_start_play(av7110, RP_AUDIO);
1330 		if (!ret)
1331 			ret = audcom(av7110, AUDIO_CMD_UNMUTE);
1332 		if (!ret)
1333 			av7110->audiostate.play_state = AUDIO_PLAYING;
1334 		break;
1335 
1336 	case AUDIO_PAUSE:
1337 		ret = audcom(av7110, AUDIO_CMD_MUTE);
1338 		if (!ret)
1339 			av7110->audiostate.play_state = AUDIO_PAUSED;
1340 		break;
1341 
1342 	case AUDIO_CONTINUE:
1343 		if (av7110->audiostate.play_state == AUDIO_PAUSED) {
1344 			av7110->audiostate.play_state = AUDIO_PLAYING;
1345 			ret = audcom(av7110, AUDIO_CMD_UNMUTE | AUDIO_CMD_PCM16);
1346 		}
1347 		break;
1348 
1349 	case AUDIO_SELECT_SOURCE:
1350 		av7110->audiostate.stream_source = (audio_stream_source_t) arg;
1351 		break;
1352 
1353 	case AUDIO_SET_MUTE:
1354 	{
1355 		ret = audcom(av7110, arg ? AUDIO_CMD_MUTE : AUDIO_CMD_UNMUTE);
1356 		if (!ret)
1357 			av7110->audiostate.mute_state = (int) arg;
1358 		break;
1359 	}
1360 
1361 	case AUDIO_SET_AV_SYNC:
1362 		av7110->audiostate.AV_sync_state = (int) arg;
1363 		ret = audcom(av7110, arg ? AUDIO_CMD_SYNC_ON : AUDIO_CMD_SYNC_OFF);
1364 		break;
1365 
1366 	case AUDIO_SET_BYPASS_MODE:
1367 		if (FW_VERSION(av7110->arm_app) < 0x2621)
1368 			ret = -EINVAL;
1369 		av7110->audiostate.bypass_mode = (int)arg;
1370 		break;
1371 
1372 	case AUDIO_CHANNEL_SELECT:
1373 		av7110->audiostate.channel_select = (audio_channel_select_t) arg;
1374 		switch(av7110->audiostate.channel_select) {
1375 		case AUDIO_STEREO:
1376 			ret = audcom(av7110, AUDIO_CMD_STEREO);
1377 			if (!ret) {
1378 				if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1379 					i2c_writereg(av7110, 0x20, 0x02, 0x49);
1380 				else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1381 					msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
1382 			}
1383 			break;
1384 		case AUDIO_MONO_LEFT:
1385 			ret = audcom(av7110, AUDIO_CMD_MONO_L);
1386 			if (!ret) {
1387 				if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1388 					i2c_writereg(av7110, 0x20, 0x02, 0x4a);
1389 				else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1390 					msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
1391 			}
1392 			break;
1393 		case AUDIO_MONO_RIGHT:
1394 			ret = audcom(av7110, AUDIO_CMD_MONO_R);
1395 			if (!ret) {
1396 				if (av7110->adac_type == DVB_ADAC_CRYSTAL)
1397 					i2c_writereg(av7110, 0x20, 0x02, 0x45);
1398 				else if (av7110->adac_type == DVB_ADAC_MSP34x5)
1399 					msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
1400 			}
1401 			break;
1402 		default:
1403 			ret = -EINVAL;
1404 			break;
1405 		}
1406 		break;
1407 
1408 	case AUDIO_GET_STATUS:
1409 		memcpy(parg, &av7110->audiostate, sizeof(struct audio_status));
1410 		break;
1411 
1412 	case AUDIO_GET_CAPABILITIES:
1413 		if (FW_VERSION(av7110->arm_app) < 0x2621)
1414 			*(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1415 		else
1416 			*(unsigned int *)parg = AUDIO_CAP_LPCM | AUDIO_CAP_DTS | AUDIO_CAP_AC3 |
1417 						AUDIO_CAP_MP1 | AUDIO_CAP_MP2;
1418 		break;
1419 
1420 	case AUDIO_CLEAR_BUFFER:
1421 		dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1422 		av7110_ipack_reset(&av7110->ipack[0]);
1423 		if (av7110->playing == RP_AV)
1424 			ret = av7110_fw_cmd(av7110, COMTYPE_REC_PLAY,
1425 					    __Play, 2, AV_PES, 0);
1426 		break;
1427 
1428 	case AUDIO_SET_ID:
1429 		break;
1430 
1431 	case AUDIO_SET_MIXER:
1432 	{
1433 		struct audio_mixer *amix = (struct audio_mixer *)parg;
1434 		ret = av7110_set_volume(av7110, amix->volume_left, amix->volume_right);
1435 		break;
1436 	}
1437 
1438 	case AUDIO_SET_STREAMTYPE:
1439 		break;
1440 
1441 	default:
1442 		ret = -ENOIOCTLCMD;
1443 	}
1444 
1445 	return ret;
1446 }
1447 
1448 
dvb_video_open(struct inode * inode,struct file * file)1449 static int dvb_video_open(struct inode *inode, struct file *file)
1450 {
1451 	struct dvb_device *dvbdev = file->private_data;
1452 	struct av7110 *av7110 = dvbdev->priv;
1453 	int err;
1454 
1455 	dprintk(2, "av7110:%p, \n", av7110);
1456 
1457 	if ((err = dvb_generic_open(inode, file)) < 0)
1458 		return err;
1459 
1460 	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1461 		dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1462 		dvb_ringbuffer_flush_spinlock_wakeup(&av7110->avout);
1463 		av7110->video_blank = 1;
1464 		av7110->audiostate.AV_sync_state = 1;
1465 		av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1466 
1467 		/*  empty event queue */
1468 		av7110->video_events.eventr = av7110->video_events.eventw = 0;
1469 	}
1470 
1471 	return 0;
1472 }
1473 
dvb_video_release(struct inode * inode,struct file * file)1474 static int dvb_video_release(struct inode *inode, struct file *file)
1475 {
1476 	struct dvb_device *dvbdev = file->private_data;
1477 	struct av7110 *av7110 = dvbdev->priv;
1478 
1479 	dprintk(2, "av7110:%p, \n", av7110);
1480 
1481 	if ((file->f_flags & O_ACCMODE) != O_RDONLY) {
1482 		av7110_av_stop(av7110, RP_VIDEO);
1483 	}
1484 
1485 	return dvb_generic_release(inode, file);
1486 }
1487 
dvb_audio_open(struct inode * inode,struct file * file)1488 static int dvb_audio_open(struct inode *inode, struct file *file)
1489 {
1490 	struct dvb_device *dvbdev = file->private_data;
1491 	struct av7110 *av7110 = dvbdev->priv;
1492 	int err = dvb_generic_open(inode, file);
1493 
1494 	dprintk(2, "av7110:%p, \n", av7110);
1495 
1496 	if (err < 0)
1497 		return err;
1498 	dvb_ringbuffer_flush_spinlock_wakeup(&av7110->aout);
1499 	av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1500 	return 0;
1501 }
1502 
dvb_audio_release(struct inode * inode,struct file * file)1503 static int dvb_audio_release(struct inode *inode, struct file *file)
1504 {
1505 	struct dvb_device *dvbdev = file->private_data;
1506 	struct av7110 *av7110 = dvbdev->priv;
1507 
1508 	dprintk(2, "av7110:%p, \n", av7110);
1509 
1510 	av7110_av_stop(av7110, RP_AUDIO);
1511 	return dvb_generic_release(inode, file);
1512 }
1513 
1514 
1515 
1516 /******************************************************************************
1517  * driver registration
1518  ******************************************************************************/
1519 
1520 static const struct file_operations dvb_video_fops = {
1521 	.owner		= THIS_MODULE,
1522 	.write		= dvb_video_write,
1523 	.unlocked_ioctl	= dvb_generic_ioctl,
1524 	.open		= dvb_video_open,
1525 	.release	= dvb_video_release,
1526 	.poll		= dvb_video_poll,
1527 	.llseek		= noop_llseek,
1528 };
1529 
1530 static struct dvb_device dvbdev_video = {
1531 	.priv		= NULL,
1532 	.users		= 6,
1533 	.readers	= 5,	/* arbitrary */
1534 	.writers	= 1,
1535 	.fops		= &dvb_video_fops,
1536 	.kernel_ioctl	= dvb_video_ioctl,
1537 };
1538 
1539 static const struct file_operations dvb_audio_fops = {
1540 	.owner		= THIS_MODULE,
1541 	.write		= dvb_audio_write,
1542 	.unlocked_ioctl	= dvb_generic_ioctl,
1543 	.open		= dvb_audio_open,
1544 	.release	= dvb_audio_release,
1545 	.poll		= dvb_audio_poll,
1546 	.llseek		= noop_llseek,
1547 };
1548 
1549 static struct dvb_device dvbdev_audio = {
1550 	.priv		= NULL,
1551 	.users		= 1,
1552 	.writers	= 1,
1553 	.fops		= &dvb_audio_fops,
1554 	.kernel_ioctl	= dvb_audio_ioctl,
1555 };
1556 
1557 
av7110_av_register(struct av7110 * av7110)1558 int av7110_av_register(struct av7110 *av7110)
1559 {
1560 	av7110->audiostate.AV_sync_state = 0;
1561 	av7110->audiostate.mute_state = 0;
1562 	av7110->audiostate.play_state = AUDIO_STOPPED;
1563 	av7110->audiostate.stream_source = AUDIO_SOURCE_DEMUX;
1564 	av7110->audiostate.channel_select = AUDIO_STEREO;
1565 	av7110->audiostate.bypass_mode = 0;
1566 
1567 	av7110->videostate.video_blank = 0;
1568 	av7110->videostate.play_state = VIDEO_STOPPED;
1569 	av7110->videostate.stream_source = VIDEO_SOURCE_DEMUX;
1570 	av7110->videostate.video_format = VIDEO_FORMAT_4_3;
1571 	av7110->videostate.display_format = VIDEO_LETTER_BOX;
1572 	av7110->display_ar = VIDEO_FORMAT_4_3;
1573 	av7110->display_panscan = VID_VC_AND_PS_PREF;
1574 
1575 	init_waitqueue_head(&av7110->video_events.wait_queue);
1576 	spin_lock_init(&av7110->video_events.lock);
1577 	av7110->video_events.eventw = av7110->video_events.eventr = 0;
1578 	av7110->video_events.overflow = 0;
1579 	memset(&av7110->video_size, 0, sizeof (video_size_t));
1580 
1581 	dvb_register_device(&av7110->dvb_adapter, &av7110->video_dev,
1582 			    &dvbdev_video, av7110, DVB_DEVICE_VIDEO);
1583 
1584 	dvb_register_device(&av7110->dvb_adapter, &av7110->audio_dev,
1585 			    &dvbdev_audio, av7110, DVB_DEVICE_AUDIO);
1586 
1587 	return 0;
1588 }
1589 
av7110_av_unregister(struct av7110 * av7110)1590 void av7110_av_unregister(struct av7110 *av7110)
1591 {
1592 	dvb_unregister_device(av7110->audio_dev);
1593 	dvb_unregister_device(av7110->video_dev);
1594 }
1595 
av7110_av_init(struct av7110 * av7110)1596 int av7110_av_init(struct av7110 *av7110)
1597 {
1598 	void (*play[])(u8 *, int, void *) = { play_audio_cb, play_video_cb };
1599 	int i, ret;
1600 
1601 	for (i = 0; i < 2; i++) {
1602 		struct ipack *ipack = av7110->ipack + i;
1603 
1604 		ret = av7110_ipack_init(ipack, IPACKS, play[i]);
1605 		if (ret < 0) {
1606 			if (i)
1607 				av7110_ipack_free(--ipack);
1608 			goto out;
1609 		}
1610 		ipack->data = av7110;
1611 	}
1612 
1613 	dvb_ringbuffer_init(&av7110->avout, av7110->iobuf, AVOUTLEN);
1614 	dvb_ringbuffer_init(&av7110->aout, av7110->iobuf + AVOUTLEN, AOUTLEN);
1615 
1616 	av7110->kbuf[0] = (u8 *)(av7110->iobuf + AVOUTLEN + AOUTLEN + BMPLEN);
1617 	av7110->kbuf[1] = av7110->kbuf[0] + 2 * IPACKS;
1618 out:
1619 	return ret;
1620 }
1621 
av7110_av_exit(struct av7110 * av7110)1622 void av7110_av_exit(struct av7110 *av7110)
1623 {
1624 	av7110_ipack_free(&av7110->ipack[0]);
1625 	av7110_ipack_free(&av7110->ipack[1]);
1626 }
1627