1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24#include <linux/bitops.h>
25#include <linux/device.h>
26#include <linux/slab.h>
27#include <linux/string.h>
28#include <linux/ktime.h>
29#include <linux/vmalloc.h>
30#include <media/drv-intf/cx25840.h>
31#include <media/tuner.h>
32#include <media/v4l2-fh.h>
33#include <media/v4l2-ioctl.h>
34#include <media/v4l2-subdev.h>
35#include <media/videobuf2-vmalloc.h>
36
37#include "cxusb.h"
38
39static int cxusb_medion_v_queue_setup(struct vb2_queue *q,
40 unsigned int *num_buffers,
41 unsigned int *num_planes,
42 unsigned int sizes[],
43 struct device *alloc_devs[])
44{
45 struct dvb_usb_device *dvbdev = vb2_get_drv_priv(q);
46 struct cxusb_medion_dev *cxdev = dvbdev->priv;
47 unsigned int size = cxdev->width * cxdev->height * 2;
48
49 if (*num_planes > 0) {
50 if (*num_planes != 1)
51 return -EINVAL;
52
53 if (sizes[0] < size)
54 return -EINVAL;
55 } else {
56 *num_planes = 1;
57 sizes[0] = size;
58 }
59
60 return 0;
61}
62
63static int cxusb_medion_v_buf_init(struct vb2_buffer *vb)
64{
65 struct dvb_usb_device *dvbdev = vb2_get_drv_priv(vb->vb2_queue);
66 struct cxusb_medion_dev *cxdev = dvbdev->priv;
67
68 cxusb_vprintk(dvbdev, OPS, "buffer init\n");
69
70 if (vb2_plane_size(vb, 0) < cxdev->width * cxdev->height * 2)
71 return -ENOMEM;
72
73 cxusb_vprintk(dvbdev, OPS, "buffer OK\n");
74
75 return 0;
76}
77
78static void cxusb_auxbuf_init(struct dvb_usb_device *dvbdev,
79 struct cxusb_medion_auxbuf *auxbuf,
80 u8 *buf, unsigned int len)
81{
82 cxusb_vprintk(dvbdev, AUXB, "initializing auxbuf of len %u\n", len);
83
84 auxbuf->buf = buf;
85 auxbuf->len = len;
86 auxbuf->paylen = 0;
87}
88
89static void cxusb_auxbuf_head_trim(struct dvb_usb_device *dvbdev,
90 struct cxusb_medion_auxbuf *auxbuf,
91 unsigned int pos)
92{
93 if (pos == 0)
94 return;
95
96 if (WARN_ON(pos > auxbuf->paylen))
97 return;
98
99 cxusb_vprintk(dvbdev, AUXB,
100 "trimming auxbuf len by %u to %u\n",
101 pos, auxbuf->paylen - pos);
102
103 memmove(auxbuf->buf, auxbuf->buf + pos, auxbuf->paylen - pos);
104 auxbuf->paylen -= pos;
105}
106
107static unsigned int cxusb_auxbuf_paylen(struct cxusb_medion_auxbuf *auxbuf)
108{
109 return auxbuf->paylen;
110}
111
112static bool cxusb_auxbuf_make_space(struct dvb_usb_device *dvbdev,
113 struct cxusb_medion_auxbuf *auxbuf,
114 unsigned int howmuch)
115{
116 unsigned int freespace;
117
118 if (WARN_ON(howmuch >= auxbuf->len))
119 howmuch = auxbuf->len - 1;
120
121 freespace = auxbuf->len - cxusb_auxbuf_paylen(auxbuf);
122
123 cxusb_vprintk(dvbdev, AUXB, "freespace is %u\n", freespace);
124
125 if (freespace >= howmuch)
126 return true;
127
128 howmuch -= freespace;
129
130 cxusb_vprintk(dvbdev, AUXB, "will overwrite %u bytes of buffer\n",
131 howmuch);
132
133 cxusb_auxbuf_head_trim(dvbdev, auxbuf, howmuch);
134
135 return false;
136}
137
138
139static bool cxusb_auxbuf_append_urb(struct dvb_usb_device *dvbdev,
140 struct cxusb_medion_auxbuf *auxbuf,
141 struct urb *urb)
142{
143 unsigned long len;
144 int i;
145 bool ret;
146
147 for (i = 0, len = 0; i < urb->number_of_packets; i++)
148 len += urb->iso_frame_desc[i].actual_length;
149
150 ret = cxusb_auxbuf_make_space(dvbdev, auxbuf, len);
151
152 for (i = 0; i < urb->number_of_packets; i++) {
153 unsigned int to_copy;
154
155 to_copy = urb->iso_frame_desc[i].actual_length;
156
157 memcpy(auxbuf->buf + auxbuf->paylen, urb->transfer_buffer +
158 urb->iso_frame_desc[i].offset, to_copy);
159
160 auxbuf->paylen += to_copy;
161 }
162
163 return ret;
164}
165
166static bool cxusb_auxbuf_copy(struct cxusb_medion_auxbuf *auxbuf,
167 unsigned int pos, unsigned char *dest,
168 unsigned int len)
169{
170 if (pos + len > auxbuf->paylen)
171 return false;
172
173 memcpy(dest, auxbuf->buf + pos, len);
174
175 return true;
176}
177
178static bool cxusb_medion_cf_refc_fld_chg(struct dvb_usb_device *dvbdev,
179 struct cxusb_bt656_params *bt656,
180 bool firstfield,
181 unsigned int maxlines,
182 unsigned int maxlinesamples,
183 unsigned char buf[4])
184{
185 bool firstfield_code = (buf[3] & CXUSB_BT656_FIELD_MASK) ==
186 CXUSB_BT656_FIELD_1;
187 unsigned int remlines;
188
189 if (bt656->line == 0 || firstfield == firstfield_code)
190 return false;
191
192 if (bt656->fmode == LINE_SAMPLES) {
193 unsigned int remsamples = maxlinesamples -
194 bt656->linesamples;
195
196 cxusb_vprintk(dvbdev, BT656,
197 "field %c after line %u field change\n",
198 firstfield ? '1' : '2', bt656->line);
199
200 if (bt656->buf && remsamples > 0) {
201 memset(bt656->buf, 0, remsamples);
202 bt656->buf += remsamples;
203
204 cxusb_vprintk(dvbdev, BT656,
205 "field %c line %u %u samples still remaining (of %u)\n",
206 firstfield ? '1' : '2',
207 bt656->line, remsamples,
208 maxlinesamples);
209 }
210
211 bt656->line++;
212 }
213
214 remlines = maxlines - bt656->line;
215 if (bt656->buf && remlines > 0) {
216 memset(bt656->buf, 0, remlines * maxlinesamples);
217 bt656->buf += remlines * maxlinesamples;
218
219 cxusb_vprintk(dvbdev, BT656,
220 "field %c %u lines still remaining (of %u)\n",
221 firstfield ? '1' : '2', remlines,
222 maxlines);
223 }
224
225 return true;
226}
227
228static void cxusb_medion_cf_refc_start_sch(struct dvb_usb_device *dvbdev,
229 struct cxusb_bt656_params *bt656,
230 bool firstfield,
231 unsigned char buf[4])
232{
233 bool firstfield_code = (buf[3] & CXUSB_BT656_FIELD_MASK) ==
234 CXUSB_BT656_FIELD_1;
235 bool sav_code = (buf[3] & CXUSB_BT656_SEAV_MASK) ==
236 CXUSB_BT656_SEAV_SAV;
237 bool vbi_code = (buf[3] & CXUSB_BT656_VBI_MASK) ==
238 CXUSB_BT656_VBI_ON;
239
240 if (!sav_code || firstfield != firstfield_code)
241 return;
242
243 if (!vbi_code) {
244 cxusb_vprintk(dvbdev, BT656, "line start @ pos %u\n",
245 bt656->pos);
246
247 bt656->linesamples = 0;
248 bt656->fmode = LINE_SAMPLES;
249 } else {
250 cxusb_vprintk(dvbdev, BT656, "VBI start @ pos %u\n",
251 bt656->pos);
252
253 bt656->fmode = VBI_SAMPLES;
254 }
255}
256
257static void cxusb_medion_cf_refc_line_smpl(struct dvb_usb_device *dvbdev,
258 struct cxusb_bt656_params *bt656,
259 bool firstfield,
260 unsigned int maxlinesamples,
261 unsigned char buf[4])
262{
263 bool sav_code = (buf[3] & CXUSB_BT656_SEAV_MASK) ==
264 CXUSB_BT656_SEAV_SAV;
265 unsigned int remsamples;
266
267 if (sav_code)
268 cxusb_vprintk(dvbdev, BT656,
269 "SAV in line samples @ line %u, pos %u\n",
270 bt656->line, bt656->pos);
271
272 remsamples = maxlinesamples - bt656->linesamples;
273 if (bt656->buf && remsamples > 0) {
274 memset(bt656->buf, 0, remsamples);
275 bt656->buf += remsamples;
276
277 cxusb_vprintk(dvbdev, BT656,
278 "field %c line %u %u samples still remaining (of %u)\n",
279 firstfield ? '1' : '2', bt656->line, remsamples,
280 maxlinesamples);
281 }
282
283 bt656->fmode = START_SEARCH;
284 bt656->line++;
285}
286
287static void cxusb_medion_cf_refc_vbi_smpl(struct dvb_usb_device *dvbdev,
288 struct cxusb_bt656_params *bt656,
289 unsigned char buf[4])
290{
291 bool sav_code = (buf[3] & CXUSB_BT656_SEAV_MASK) ==
292 CXUSB_BT656_SEAV_SAV;
293
294 if (sav_code)
295 cxusb_vprintk(dvbdev, BT656, "SAV in VBI samples @ pos %u\n",
296 bt656->pos);
297
298 bt656->fmode = START_SEARCH;
299}
300
301
302static bool cxusb_medion_cf_ref_code(struct dvb_usb_device *dvbdev,
303 struct cxusb_bt656_params *bt656,
304 bool firstfield,
305 unsigned int maxlines,
306 unsigned int maxlinesamples,
307 unsigned char buf[4])
308{
309 if (bt656->fmode == START_SEARCH) {
310 cxusb_medion_cf_refc_start_sch(dvbdev, bt656, firstfield, buf);
311 } else if (bt656->fmode == LINE_SAMPLES) {
312 cxusb_medion_cf_refc_line_smpl(dvbdev, bt656, firstfield,
313 maxlinesamples, buf);
314 return false;
315 } else if (bt656->fmode == VBI_SAMPLES) {
316 cxusb_medion_cf_refc_vbi_smpl(dvbdev, bt656, buf);
317 return false;
318 }
319
320 return true;
321}
322
323static bool cxusb_medion_cs_start_sch(struct dvb_usb_device *dvbdev,
324 struct cxusb_medion_auxbuf *auxbuf,
325 struct cxusb_bt656_params *bt656,
326 unsigned int maxlinesamples)
327{
328 unsigned char buf[64];
329 unsigned int idx;
330 unsigned int tocheck = clamp_t(size_t, maxlinesamples / 4, 3,
331 sizeof(buf));
332
333 if (!cxusb_auxbuf_copy(auxbuf, bt656->pos + 1, buf, tocheck))
334 return false;
335
336 for (idx = 0; idx <= tocheck - 3; idx++)
337 if (memcmp(buf + idx, CXUSB_BT656_PREAMBLE, 3) == 0) {
338 bt656->pos += (1 + idx);
339 return true;
340 }
341
342 cxusb_vprintk(dvbdev, BT656, "line %u early start, pos %u\n",
343 bt656->line, bt656->pos);
344
345 bt656->linesamples = 0;
346 bt656->fmode = LINE_SAMPLES;
347
348 return true;
349}
350
351static void cxusb_medion_cs_line_smpl(struct cxusb_bt656_params *bt656,
352 unsigned int maxlinesamples,
353 unsigned char val)
354{
355 if (bt656->buf)
356 *(bt656->buf++) = val;
357
358 bt656->linesamples++;
359 bt656->pos++;
360
361 if (bt656->linesamples >= maxlinesamples) {
362 bt656->fmode = START_SEARCH;
363 bt656->line++;
364 }
365}
366
367static bool cxusb_medion_copy_samples(struct dvb_usb_device *dvbdev,
368 struct cxusb_medion_auxbuf *auxbuf,
369 struct cxusb_bt656_params *bt656,
370 unsigned int maxlinesamples,
371 unsigned char val)
372{
373 if (bt656->fmode == START_SEARCH && bt656->line > 0)
374 return cxusb_medion_cs_start_sch(dvbdev, auxbuf, bt656,
375 maxlinesamples);
376 else if (bt656->fmode == LINE_SAMPLES)
377 cxusb_medion_cs_line_smpl(bt656, maxlinesamples, val);
378 else
379 bt656->pos++;
380
381 return true;
382}
383
384static bool cxusb_medion_copy_field(struct dvb_usb_device *dvbdev,
385 struct cxusb_medion_auxbuf *auxbuf,
386 struct cxusb_bt656_params *bt656,
387 bool firstfield,
388 unsigned int maxlines,
389 unsigned int maxlinesmpls)
390{
391 while (bt656->line < maxlines) {
392 unsigned char val;
393
394 if (!cxusb_auxbuf_copy(auxbuf, bt656->pos, &val, 1))
395 break;
396
397 if (val == CXUSB_BT656_PREAMBLE[0]) {
398 unsigned char buf[4];
399
400 buf[0] = val;
401 if (!cxusb_auxbuf_copy(auxbuf, bt656->pos + 1,
402 buf + 1, 3))
403 break;
404
405 if (buf[1] == CXUSB_BT656_PREAMBLE[1] &&
406 buf[2] == CXUSB_BT656_PREAMBLE[2]) {
407
408
409
410
411 if (cxusb_medion_cf_refc_fld_chg(dvbdev,
412 bt656,
413 firstfield,
414 maxlines,
415 maxlinesmpls,
416 buf))
417 return true;
418
419 if (cxusb_medion_cf_ref_code(dvbdev, bt656,
420 firstfield,
421 maxlines,
422 maxlinesmpls,
423 buf))
424 bt656->pos += 4;
425
426 continue;
427 }
428 }
429
430 if (!cxusb_medion_copy_samples(dvbdev, auxbuf, bt656,
431 maxlinesmpls, val))
432 break;
433 }
434
435 if (bt656->line < maxlines) {
436 cxusb_vprintk(dvbdev, BT656,
437 "end of buffer pos = %u, line = %u\n",
438 bt656->pos, bt656->line);
439 return false;
440 }
441
442 return true;
443}
444
445static bool cxusb_medion_v_process_auxbuf(struct cxusb_medion_dev *cxdev,
446 bool reset)
447{
448 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
449 struct cxusb_bt656_params *bt656 = &cxdev->bt656;
450
451
452
453
454
455 if (bt656->mode == NEW_FRAME) {
456 if (!list_empty(&cxdev->buflist)) {
457 cxdev->vbuf =
458 list_first_entry(&cxdev->buflist,
459 struct cxusb_medion_vbuffer,
460 list);
461 list_del(&cxdev->vbuf->list);
462 } else {
463 dev_warn(&dvbdev->udev->dev, "no free buffers\n");
464 }
465 }
466
467 if (bt656->mode == NEW_FRAME || reset) {
468 cxusb_vprintk(dvbdev, URB, "will copy field 1\n");
469 bt656->pos = 0;
470 bt656->mode = FIRST_FIELD;
471 bt656->fmode = START_SEARCH;
472 bt656->line = 0;
473
474 if (cxdev->vbuf) {
475 cxdev->vbuf->vb2.vb2_buf.timestamp = ktime_get_ns();
476 bt656->buf = vb2_plane_vaddr(&cxdev->vbuf->vb2.vb2_buf,
477 0);
478 }
479 }
480
481 if (bt656->mode == FIRST_FIELD) {
482 if (!cxusb_medion_copy_field(dvbdev, &cxdev->auxbuf, bt656,
483 true, cxdev->height / 2,
484 cxdev->width * 2))
485 return false;
486
487
488
489
490
491
492 cxusb_vprintk(dvbdev, URB, "will copy field 2\n");
493 bt656->mode = SECOND_FIELD;
494 bt656->fmode = START_SEARCH;
495 bt656->line = 0;
496 }
497
498 if (bt656->mode == SECOND_FIELD) {
499 if (!cxusb_medion_copy_field(dvbdev, &cxdev->auxbuf, bt656,
500 false, cxdev->height / 2,
501 cxdev->width * 2))
502 return false;
503
504 cxusb_auxbuf_head_trim(dvbdev, &cxdev->auxbuf, bt656->pos);
505
506 bt656->mode = NEW_FRAME;
507
508 if (cxdev->vbuf) {
509 vb2_set_plane_payload(&cxdev->vbuf->vb2.vb2_buf, 0,
510 cxdev->width * cxdev->height * 2);
511
512 cxdev->vbuf->vb2.field = cxdev->field_order;
513 cxdev->vbuf->vb2.sequence = cxdev->vbuf_sequence++;
514
515 vb2_buffer_done(&cxdev->vbuf->vb2.vb2_buf,
516 VB2_BUF_STATE_DONE);
517
518 cxdev->vbuf = NULL;
519 cxdev->bt656.buf = NULL;
520
521 cxusb_vprintk(dvbdev, URB, "frame done\n");
522 } else {
523 cxusb_vprintk(dvbdev, URB, "frame skipped\n");
524 cxdev->vbuf_sequence++;
525 }
526 }
527
528 return true;
529}
530
531static bool cxusb_medion_v_complete_handle_urb(struct cxusb_medion_dev *cxdev,
532 bool *auxbuf_reset)
533{
534 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
535 unsigned int urbn;
536 struct urb *urb;
537 int ret;
538
539 *auxbuf_reset = false;
540
541 urbn = cxdev->nexturb;
542 if (!test_bit(urbn, &cxdev->urbcomplete))
543 return false;
544
545 clear_bit(urbn, &cxdev->urbcomplete);
546
547 do {
548 cxdev->nexturb++;
549 cxdev->nexturb %= CXUSB_VIDEO_URBS;
550 urb = cxdev->streamurbs[cxdev->nexturb];
551 } while (!urb);
552
553 urb = cxdev->streamurbs[urbn];
554 cxusb_vprintk(dvbdev, URB, "URB %u status = %d\n", urbn, urb->status);
555
556 if (urb->status == 0 || urb->status == -EXDEV) {
557 int i;
558 unsigned long len;
559
560 for (i = 0, len = 0; i < urb->number_of_packets; i++)
561 len += urb->iso_frame_desc[i].actual_length;
562
563 cxusb_vprintk(dvbdev, URB, "URB %u data len = %lu\n", urbn,
564 len);
565
566 if (len > 0) {
567 cxusb_vprintk(dvbdev, URB, "appending URB\n");
568
569
570
571
572
573
574
575
576
577
578
579 *auxbuf_reset =
580 !cxusb_auxbuf_append_urb(dvbdev,
581 &cxdev->auxbuf,
582 urb);
583 }
584 }
585
586 cxusb_vprintk(dvbdev, URB, "URB %u resubmit\n", urbn);
587
588 ret = usb_submit_urb(urb, GFP_KERNEL);
589 if (ret != 0)
590 dev_err(&dvbdev->udev->dev,
591 "unable to resubmit URB %u (%d), you'll have to restart streaming\n",
592 urbn, ret);
593
594
595 return test_bit(cxdev->nexturb, &cxdev->urbcomplete);
596}
597
598static void cxusb_medion_v_complete_work(struct work_struct *work)
599{
600 struct cxusb_medion_dev *cxdev = container_of(work,
601 struct cxusb_medion_dev,
602 urbwork);
603 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
604 bool auxbuf_reset;
605 bool reschedule;
606
607 mutex_lock(cxdev->videodev->lock);
608
609 cxusb_vprintk(dvbdev, URB, "worker called, stop_streaming = %d\n",
610 (int)cxdev->stop_streaming);
611
612 if (cxdev->stop_streaming)
613 goto unlock;
614
615 reschedule = cxusb_medion_v_complete_handle_urb(cxdev, &auxbuf_reset);
616
617 if (cxusb_medion_v_process_auxbuf(cxdev, auxbuf_reset))
618
619 reschedule = true;
620
621 if (reschedule) {
622 cxusb_vprintk(dvbdev, URB, "rescheduling worker\n");
623 schedule_work(&cxdev->urbwork);
624 }
625
626unlock:
627 mutex_unlock(cxdev->videodev->lock);
628}
629
630static void cxusb_medion_v_complete(struct urb *u)
631{
632 struct dvb_usb_device *dvbdev = u->context;
633 struct cxusb_medion_dev *cxdev = dvbdev->priv;
634 unsigned int i;
635
636 for (i = 0; i < CXUSB_VIDEO_URBS; i++)
637 if (cxdev->streamurbs[i] == u)
638 break;
639
640 if (i >= CXUSB_VIDEO_URBS) {
641 dev_err(&dvbdev->udev->dev,
642 "complete on unknown URB\n");
643 return;
644 }
645
646 cxusb_vprintk(dvbdev, URB, "URB %u complete\n", i);
647
648 set_bit(i, &cxdev->urbcomplete);
649 schedule_work(&cxdev->urbwork);
650}
651
652static void cxusb_medion_urbs_free(struct cxusb_medion_dev *cxdev)
653{
654 unsigned int i;
655
656 for (i = 0; i < CXUSB_VIDEO_URBS; i++)
657 if (cxdev->streamurbs[i]) {
658 kfree(cxdev->streamurbs[i]->transfer_buffer);
659 usb_free_urb(cxdev->streamurbs[i]);
660 cxdev->streamurbs[i] = NULL;
661 }
662}
663
664static void cxusb_medion_return_buffers(struct cxusb_medion_dev *cxdev,
665 bool requeue)
666{
667 struct cxusb_medion_vbuffer *vbuf, *vbuf_tmp;
668
669 list_for_each_entry_safe(vbuf, vbuf_tmp, &cxdev->buflist,
670 list) {
671 list_del(&vbuf->list);
672 vb2_buffer_done(&vbuf->vb2.vb2_buf,
673 requeue ? VB2_BUF_STATE_QUEUED :
674 VB2_BUF_STATE_ERROR);
675 }
676
677 if (cxdev->vbuf) {
678 vb2_buffer_done(&cxdev->vbuf->vb2.vb2_buf,
679 requeue ? VB2_BUF_STATE_QUEUED :
680 VB2_BUF_STATE_ERROR);
681
682 cxdev->vbuf = NULL;
683 cxdev->bt656.buf = NULL;
684 }
685}
686
687static int cxusb_medion_v_ss_auxbuf_alloc(struct cxusb_medion_dev *cxdev,
688 int *npackets)
689{
690 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
691 u8 *buf;
692 unsigned int framelen, urblen, auxbuflen;
693
694 framelen = (cxdev->width * 2 + 4 + 4) *
695 (cxdev->height + 50 );
696
697
698
699
700
701 BUILD_BUG_ON(CXUSB_VIDEO_URB_MAX_SIZE / CXUSB_VIDEO_PKT_SIZE >
702 CXUSB_VIDEO_MAX_FRAME_PKTS);
703 *npackets = min_t(int, (framelen + CXUSB_VIDEO_PKT_SIZE - 1) /
704 CXUSB_VIDEO_PKT_SIZE,
705 CXUSB_VIDEO_URB_MAX_SIZE / CXUSB_VIDEO_PKT_SIZE);
706 urblen = *npackets * CXUSB_VIDEO_PKT_SIZE;
707
708 cxusb_vprintk(dvbdev, URB,
709 "each URB will have %d packets for total of %u bytes (%u x %u @ %u)\n",
710 *npackets, urblen, (unsigned int)cxdev->width,
711 (unsigned int)cxdev->height, framelen);
712
713 auxbuflen = framelen + urblen;
714
715 buf = vmalloc(auxbuflen);
716 if (!buf)
717 return -ENOMEM;
718
719 cxusb_auxbuf_init(dvbdev, &cxdev->auxbuf, buf, auxbuflen);
720
721 return 0;
722}
723
724static u32 cxusb_medion_norm2field_order(v4l2_std_id norm)
725{
726 bool is625 = norm & V4L2_STD_625_50;
727 bool is525 = norm & V4L2_STD_525_60;
728
729 if (!is625 && !is525)
730 return V4L2_FIELD_NONE;
731
732 if (is625 && is525)
733 return V4L2_FIELD_NONE;
734
735 if (is625)
736 return V4L2_FIELD_SEQ_TB;
737 else
738 return V4L2_FIELD_SEQ_BT;
739}
740
741static u32 cxusb_medion_field_order(struct cxusb_medion_dev *cxdev)
742{
743 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
744 u32 field;
745 int ret;
746 v4l2_std_id norm;
747
748
749 if (cxdev->input == 0)
750 return V4L2_FIELD_SEQ_TB;
751
752 field = cxusb_medion_norm2field_order(cxdev->norm);
753 if (field != V4L2_FIELD_NONE)
754 return field;
755
756 ret = v4l2_subdev_call(cxdev->cx25840, video, g_std, &norm);
757 if (ret != 0) {
758 cxusb_vprintk(dvbdev, OPS,
759 "cannot get current standard for input %u\n",
760 (unsigned int)cxdev->input);
761 } else {
762 field = cxusb_medion_norm2field_order(norm);
763 if (field != V4L2_FIELD_NONE)
764 return field;
765 }
766
767 dev_warn(&dvbdev->udev->dev,
768 "cannot determine field order for the current standard setup and received signal, using TB\n");
769 return V4L2_FIELD_SEQ_TB;
770}
771
772static int cxusb_medion_v_start_streaming(struct vb2_queue *q,
773 unsigned int count)
774{
775 struct dvb_usb_device *dvbdev = vb2_get_drv_priv(q);
776 struct cxusb_medion_dev *cxdev = dvbdev->priv;
777 u8 streamon_params[2] = { 0x03, 0x00 };
778 int npackets, i;
779 int ret;
780
781 cxusb_vprintk(dvbdev, OPS, "should start streaming\n");
782
783 if (cxdev->stop_streaming) {
784
785 ret = -EBUSY;
786 goto ret_retbufs;
787 }
788
789 cxdev->field_order = cxusb_medion_field_order(cxdev);
790
791 ret = v4l2_subdev_call(cxdev->cx25840, video, s_stream, 1);
792 if (ret != 0) {
793 dev_err(&dvbdev->udev->dev,
794 "unable to start stream (%d)\n", ret);
795 goto ret_retbufs;
796 }
797
798 ret = cxusb_ctrl_msg(dvbdev, CMD_STREAMING_ON, streamon_params, 2,
799 NULL, 0);
800 if (ret != 0) {
801 dev_err(&dvbdev->udev->dev,
802 "unable to start streaming (%d)\n", ret);
803 goto ret_unstream_cx;
804 }
805
806 ret = cxusb_medion_v_ss_auxbuf_alloc(cxdev, &npackets);
807 if (ret != 0)
808 goto ret_unstream_md;
809
810 for (i = 0; i < CXUSB_VIDEO_URBS; i++) {
811 int framen;
812 u8 *streambuf;
813 struct urb *surb;
814
815
816
817
818
819
820 streambuf = kmalloc(npackets * CXUSB_VIDEO_PKT_SIZE,
821 GFP_KERNEL);
822 if (!streambuf) {
823 if (i < 2) {
824 ret = -ENOMEM;
825 goto ret_freeab;
826 }
827 break;
828 }
829
830 surb = usb_alloc_urb(npackets, GFP_KERNEL);
831 if (!surb) {
832 kfree(streambuf);
833 ret = -ENOMEM;
834 goto ret_freeu;
835 }
836
837 cxdev->streamurbs[i] = surb;
838 surb->dev = dvbdev->udev;
839 surb->context = dvbdev;
840 surb->pipe = usb_rcvisocpipe(dvbdev->udev, 2);
841
842 surb->interval = 1;
843 surb->transfer_flags = URB_ISO_ASAP;
844
845 surb->transfer_buffer = streambuf;
846
847 surb->complete = cxusb_medion_v_complete;
848 surb->number_of_packets = npackets;
849 surb->transfer_buffer_length = npackets * CXUSB_VIDEO_PKT_SIZE;
850
851 for (framen = 0; framen < npackets; framen++) {
852 surb->iso_frame_desc[framen].offset =
853 CXUSB_VIDEO_PKT_SIZE * framen;
854
855 surb->iso_frame_desc[framen].length =
856 CXUSB_VIDEO_PKT_SIZE;
857 }
858 }
859
860 cxdev->urbcomplete = 0;
861 cxdev->nexturb = 0;
862 cxdev->vbuf_sequence = 0;
863
864 cxdev->vbuf = NULL;
865 cxdev->bt656.mode = NEW_FRAME;
866 cxdev->bt656.buf = NULL;
867
868 for (i = 0; i < CXUSB_VIDEO_URBS; i++)
869 if (cxdev->streamurbs[i]) {
870 ret = usb_submit_urb(cxdev->streamurbs[i],
871 GFP_KERNEL);
872 if (ret != 0)
873 dev_err(&dvbdev->udev->dev,
874 "URB %d submission failed (%d)\n", i,
875 ret);
876 }
877
878 return 0;
879
880ret_freeu:
881 cxusb_medion_urbs_free(cxdev);
882
883ret_freeab:
884 vfree(cxdev->auxbuf.buf);
885
886ret_unstream_md:
887 cxusb_ctrl_msg(dvbdev, CMD_STREAMING_OFF, NULL, 0, NULL, 0);
888
889ret_unstream_cx:
890 v4l2_subdev_call(cxdev->cx25840, video, s_stream, 0);
891
892ret_retbufs:
893 cxusb_medion_return_buffers(cxdev, true);
894
895 return ret;
896}
897
898static void cxusb_medion_v_stop_streaming(struct vb2_queue *q)
899{
900 struct dvb_usb_device *dvbdev = vb2_get_drv_priv(q);
901 struct cxusb_medion_dev *cxdev = dvbdev->priv;
902 int ret;
903 unsigned int i;
904
905 cxusb_vprintk(dvbdev, OPS, "should stop streaming\n");
906
907 if (WARN_ON(cxdev->stop_streaming))
908 return;
909
910 cxdev->stop_streaming = true;
911
912 cxusb_ctrl_msg(dvbdev, CMD_STREAMING_OFF, NULL, 0, NULL, 0);
913
914 ret = v4l2_subdev_call(cxdev->cx25840, video, s_stream, 0);
915 if (ret != 0)
916 dev_err(&dvbdev->udev->dev, "unable to stop stream (%d)\n",
917 ret);
918
919
920 mutex_unlock(cxdev->videodev->lock);
921
922 for (i = 0; i < CXUSB_VIDEO_URBS; i++)
923 if (cxdev->streamurbs[i])
924 usb_kill_urb(cxdev->streamurbs[i]);
925
926 flush_work(&cxdev->urbwork);
927
928 mutex_lock(cxdev->videodev->lock);
929
930
931 vfree(cxdev->auxbuf.buf);
932
933 cxusb_medion_urbs_free(cxdev);
934
935 cxusb_medion_return_buffers(cxdev, false);
936
937 cxdev->stop_streaming = false;
938}
939
940static void cxusub_medion_v_buf_queue(struct vb2_buffer *vb)
941{
942 struct vb2_v4l2_buffer *v4l2buf = to_vb2_v4l2_buffer(vb);
943 struct cxusb_medion_vbuffer *vbuf =
944 container_of(v4l2buf, struct cxusb_medion_vbuffer, vb2);
945 struct dvb_usb_device *dvbdev = vb2_get_drv_priv(vb->vb2_queue);
946 struct cxusb_medion_dev *cxdev = dvbdev->priv;
947
948
949
950 list_add_tail(&vbuf->list, &cxdev->buflist);
951}
952
953static const struct vb2_ops cxdev_video_qops = {
954 .queue_setup = cxusb_medion_v_queue_setup,
955 .buf_init = cxusb_medion_v_buf_init,
956 .start_streaming = cxusb_medion_v_start_streaming,
957 .stop_streaming = cxusb_medion_v_stop_streaming,
958 .buf_queue = cxusub_medion_v_buf_queue,
959 .wait_prepare = vb2_ops_wait_prepare,
960 .wait_finish = vb2_ops_wait_finish
961};
962
963static const __u32 videocaps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
964 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
965static const __u32 radiocaps = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
966
967static int cxusb_medion_v_querycap(struct file *file, void *fh,
968 struct v4l2_capability *cap)
969{
970 struct dvb_usb_device *dvbdev = video_drvdata(file);
971
972 strscpy(cap->driver, dvbdev->udev->dev.driver->name,
973 sizeof(cap->driver));
974 strscpy(cap->card, "Medion 95700", sizeof(cap->card));
975 usb_make_path(dvbdev->udev, cap->bus_info, sizeof(cap->bus_info));
976
977 cap->capabilities = videocaps | radiocaps | V4L2_CAP_DEVICE_CAPS;
978
979 return 0;
980}
981
982static int cxusb_medion_v_enum_fmt_vid_cap(struct file *file, void *fh,
983 struct v4l2_fmtdesc *f)
984{
985 if (f->index != 0)
986 return -EINVAL;
987
988 f->pixelformat = V4L2_PIX_FMT_UYVY;
989
990 return 0;
991}
992
993static int cxusb_medion_g_fmt_vid_cap(struct file *file, void *fh,
994 struct v4l2_format *f)
995{
996 struct dvb_usb_device *dvbdev = video_drvdata(file);
997 struct cxusb_medion_dev *cxdev = dvbdev->priv;
998
999 f->fmt.pix.width = cxdev->width;
1000 f->fmt.pix.height = cxdev->height;
1001 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1002 f->fmt.pix.field = vb2_start_streaming_called(&cxdev->videoqueue) ?
1003 cxdev->field_order : cxusb_medion_field_order(cxdev);
1004 f->fmt.pix.bytesperline = cxdev->width * 2;
1005 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1006 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
1007
1008 return 0;
1009}
1010
1011static int cxusb_medion_try_s_fmt_vid_cap(struct file *file,
1012 struct v4l2_format *f,
1013 bool isset)
1014{
1015 struct dvb_usb_device *dvbdev = video_drvdata(file);
1016 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1017 struct v4l2_subdev_format subfmt;
1018 u32 field;
1019 int ret;
1020
1021 if (isset && vb2_is_busy(&cxdev->videoqueue))
1022 return -EBUSY;
1023
1024 field = vb2_start_streaming_called(&cxdev->videoqueue) ?
1025 cxdev->field_order : cxusb_medion_field_order(cxdev);
1026
1027 memset(&subfmt, 0, sizeof(subfmt));
1028 subfmt.which = isset ? V4L2_SUBDEV_FORMAT_ACTIVE :
1029 V4L2_SUBDEV_FORMAT_TRY;
1030 subfmt.format.width = f->fmt.pix.width & ~1;
1031 subfmt.format.height = f->fmt.pix.height & ~1;
1032 subfmt.format.code = MEDIA_BUS_FMT_FIXED;
1033 subfmt.format.field = field;
1034 subfmt.format.colorspace = V4L2_COLORSPACE_SMPTE170M;
1035
1036 ret = v4l2_subdev_call(cxdev->cx25840, pad, set_fmt, NULL, &subfmt);
1037 if (ret != 0)
1038 return ret;
1039
1040 f->fmt.pix.width = subfmt.format.width;
1041 f->fmt.pix.height = subfmt.format.height;
1042 f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
1043 f->fmt.pix.field = field;
1044 f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
1045 f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height;
1046 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1047
1048 if (isset) {
1049 cxdev->width = f->fmt.pix.width;
1050 cxdev->height = f->fmt.pix.height;
1051 }
1052
1053 return 0;
1054}
1055
1056static int cxusb_medion_try_fmt_vid_cap(struct file *file, void *fh,
1057 struct v4l2_format *f)
1058{
1059 return cxusb_medion_try_s_fmt_vid_cap(file, f, false);
1060}
1061
1062static int cxusb_medion_s_fmt_vid_cap(struct file *file, void *fh,
1063 struct v4l2_format *f)
1064{
1065 return cxusb_medion_try_s_fmt_vid_cap(file, f, true);
1066}
1067
1068static const struct {
1069 struct v4l2_input input;
1070 u32 inputcfg;
1071} cxusb_medion_inputs[] = {
1072 { .input = { .name = "TV tuner", .type = V4L2_INPUT_TYPE_TUNER,
1073 .tuner = 0, .std = V4L2_STD_PAL },
1074 .inputcfg = CX25840_COMPOSITE2, },
1075
1076 { .input = { .name = "Composite", .type = V4L2_INPUT_TYPE_CAMERA,
1077 .std = V4L2_STD_ALL },
1078 .inputcfg = CX25840_COMPOSITE1, },
1079
1080 { .input = { .name = "S-Video", .type = V4L2_INPUT_TYPE_CAMERA,
1081 .std = V4L2_STD_ALL },
1082 .inputcfg = CX25840_SVIDEO_LUMA3 | CX25840_SVIDEO_CHROMA4 }
1083};
1084
1085#define CXUSB_INPUT_CNT ARRAY_SIZE(cxusb_medion_inputs)
1086
1087static int cxusb_medion_enum_input(struct file *file, void *fh,
1088 struct v4l2_input *inp)
1089{
1090 struct dvb_usb_device *dvbdev = video_drvdata(file);
1091 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1092 u32 index = inp->index;
1093
1094 if (index >= CXUSB_INPUT_CNT)
1095 return -EINVAL;
1096
1097 *inp = cxusb_medion_inputs[index].input;
1098 inp->index = index;
1099 inp->capabilities |= V4L2_IN_CAP_STD;
1100
1101 if (index == cxdev->input) {
1102 int ret;
1103 u32 status = 0;
1104
1105 ret = v4l2_subdev_call(cxdev->cx25840, video, g_input_status,
1106 &status);
1107 if (ret != 0)
1108 dev_warn(&dvbdev->udev->dev,
1109 "cx25840 input status query failed (%d)\n",
1110 ret);
1111 else
1112 inp->status = status;
1113 }
1114
1115 return 0;
1116}
1117
1118static int cxusb_medion_g_input(struct file *file, void *fh,
1119 unsigned int *i)
1120{
1121 struct dvb_usb_device *dvbdev = video_drvdata(file);
1122 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1123
1124 *i = cxdev->input;
1125
1126 return 0;
1127}
1128
1129static int cxusb_medion_set_norm(struct cxusb_medion_dev *cxdev,
1130 v4l2_std_id norm)
1131{
1132 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
1133 int ret;
1134
1135 cxusb_vprintk(dvbdev, OPS,
1136 "trying to set standard for input %u to %lx\n",
1137 (unsigned int)cxdev->input,
1138 (unsigned long)norm);
1139
1140
1141 if (norm == V4L2_STD_UNKNOWN)
1142 return -EINVAL;
1143
1144
1145 if (cxdev->input != 0) {
1146 ret = v4l2_subdev_call(cxdev->cx25840, video, s_std, norm);
1147 if (ret)
1148 return ret;
1149
1150 goto ret_savenorm;
1151 }
1152
1153
1154 if ((norm & ~V4L2_STD_PAL) != 0)
1155 return -EINVAL;
1156
1157 ret = v4l2_subdev_call(cxdev->tda9887, video, s_std, norm);
1158 if (ret != 0) {
1159 dev_err(&dvbdev->udev->dev,
1160 "tda9887 norm setup failed (%d)\n",
1161 ret);
1162 return ret;
1163 }
1164
1165 ret = v4l2_subdev_call(cxdev->tuner, video, s_std, norm);
1166 if (ret != 0) {
1167 dev_err(&dvbdev->udev->dev,
1168 "tuner norm setup failed (%d)\n",
1169 ret);
1170 return ret;
1171 }
1172
1173 ret = v4l2_subdev_call(cxdev->cx25840, video, s_std, norm);
1174 if (ret != 0) {
1175 dev_err(&dvbdev->udev->dev,
1176 "cx25840 norm setup failed (%d)\n",
1177 ret);
1178 return ret;
1179 }
1180
1181ret_savenorm:
1182 cxdev->norm = norm;
1183
1184 return 0;
1185}
1186
1187static int cxusb_medion_s_input(struct file *file, void *fh,
1188 unsigned int i)
1189{
1190 struct dvb_usb_device *dvbdev = video_drvdata(file);
1191 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1192 int ret;
1193 v4l2_std_id norm;
1194
1195 if (i >= CXUSB_INPUT_CNT)
1196 return -EINVAL;
1197
1198 ret = v4l2_subdev_call(cxdev->cx25840, video, s_routing,
1199 cxusb_medion_inputs[i].inputcfg, 0, 0);
1200 if (ret != 0)
1201 return ret;
1202
1203 cxdev->input = i;
1204 cxdev->videodev->tvnorms = cxusb_medion_inputs[i].input.std;
1205
1206 norm = cxdev->norm & cxusb_medion_inputs[i].input.std;
1207 if (norm == 0)
1208 norm = cxusb_medion_inputs[i].input.std;
1209
1210 cxusb_medion_set_norm(cxdev, norm);
1211
1212 return 0;
1213}
1214
1215static int cxusb_medion_g_tuner(struct file *file, void *fh,
1216 struct v4l2_tuner *tuner)
1217{
1218 struct dvb_usb_device *dvbdev = video_drvdata(file);
1219 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1220 struct video_device *vdev = video_devdata(file);
1221 int ret;
1222
1223 if (tuner->index != 0)
1224 return -EINVAL;
1225
1226 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1227 tuner->type = V4L2_TUNER_ANALOG_TV;
1228 else
1229 tuner->type = V4L2_TUNER_RADIO;
1230
1231 tuner->capability = 0;
1232 tuner->afc = 0;
1233
1234
1235
1236
1237
1238
1239 ret = v4l2_subdev_call(cxdev->tda9887, tuner, g_tuner, tuner);
1240 if (ret != 0)
1241 return ret;
1242
1243
1244
1245
1246
1247
1248
1249 ret = v4l2_subdev_call(cxdev->tuner, tuner, g_tuner, tuner);
1250 if (ret != 0)
1251 return ret;
1252
1253 tuner->signal = 0;
1254
1255
1256
1257
1258 ret = v4l2_subdev_call(cxdev->cx25840, tuner, g_tuner, tuner);
1259 if (ret != 0)
1260 return ret;
1261
1262 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1263 strscpy(tuner->name, "TV tuner", sizeof(tuner->name));
1264 else
1265 strscpy(tuner->name, "Radio tuner", sizeof(tuner->name));
1266
1267 memset(tuner->reserved, 0, sizeof(tuner->reserved));
1268
1269 return 0;
1270}
1271
1272static int cxusb_medion_s_tuner(struct file *file, void *fh,
1273 const struct v4l2_tuner *tuner)
1274{
1275 struct dvb_usb_device *dvbdev = video_drvdata(file);
1276 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1277 struct video_device *vdev = video_devdata(file);
1278 int ret;
1279
1280 if (tuner->index != 0)
1281 return -EINVAL;
1282
1283 ret = v4l2_subdev_call(cxdev->tda9887, tuner, s_tuner, tuner);
1284 if (ret != 0)
1285 return ret;
1286
1287 ret = v4l2_subdev_call(cxdev->tuner, tuner, s_tuner, tuner);
1288 if (ret != 0)
1289 return ret;
1290
1291
1292
1293
1294
1295 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1296 v4l2_subdev_call(cxdev->cx25840, video, s_std, cxdev->norm);
1297 else
1298 v4l2_subdev_call(cxdev->cx25840, tuner, s_radio);
1299
1300 return v4l2_subdev_call(cxdev->cx25840, tuner, s_tuner, tuner);
1301}
1302
1303static int cxusb_medion_g_frequency(struct file *file, void *fh,
1304 struct v4l2_frequency *freq)
1305{
1306 struct dvb_usb_device *dvbdev = video_drvdata(file);
1307 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1308
1309 if (freq->tuner != 0)
1310 return -EINVAL;
1311
1312 return v4l2_subdev_call(cxdev->tuner, tuner, g_frequency, freq);
1313}
1314
1315static int cxusb_medion_s_frequency(struct file *file, void *fh,
1316 const struct v4l2_frequency *freq)
1317{
1318 struct dvb_usb_device *dvbdev = video_drvdata(file);
1319 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1320 struct video_device *vdev = video_devdata(file);
1321 int ret;
1322
1323 if (freq->tuner != 0)
1324 return -EINVAL;
1325
1326 ret = v4l2_subdev_call(cxdev->tda9887, tuner, s_frequency, freq);
1327 if (ret != 0)
1328 return ret;
1329
1330 ret = v4l2_subdev_call(cxdev->tuner, tuner, s_frequency, freq);
1331 if (ret != 0)
1332 return ret;
1333
1334
1335
1336
1337
1338 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1339 v4l2_subdev_call(cxdev->cx25840, video, s_std, cxdev->norm);
1340 else
1341 v4l2_subdev_call(cxdev->cx25840, tuner, s_radio);
1342
1343 return v4l2_subdev_call(cxdev->cx25840, tuner, s_frequency, freq);
1344}
1345
1346static int cxusb_medion_g_std(struct file *file, void *fh,
1347 v4l2_std_id *norm)
1348{
1349 struct dvb_usb_device *dvbdev = video_drvdata(file);
1350 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1351
1352 *norm = cxdev->norm;
1353
1354 if (*norm == V4L2_STD_UNKNOWN)
1355 return -ENODATA;
1356
1357 return 0;
1358}
1359
1360static int cxusb_medion_s_std(struct file *file, void *fh,
1361 v4l2_std_id norm)
1362{
1363 struct dvb_usb_device *dvbdev = video_drvdata(file);
1364 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1365
1366 return cxusb_medion_set_norm(cxdev, norm);
1367}
1368
1369static int cxusb_medion_querystd(struct file *file, void *fh,
1370 v4l2_std_id *norm)
1371{
1372 struct dvb_usb_device *dvbdev = video_drvdata(file);
1373 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1374 v4l2_std_id norm_mask;
1375 int ret;
1376
1377
1378
1379
1380
1381 if (cxdev->input == 0)
1382 norm_mask = V4L2_STD_PAL;
1383 else
1384 norm_mask = V4L2_STD_ALL;
1385
1386 ret = v4l2_subdev_call(cxdev->cx25840, video, querystd, norm);
1387 if (ret != 0) {
1388 cxusb_vprintk(dvbdev, OPS,
1389 "cannot get detected standard for input %u\n",
1390 (unsigned int)cxdev->input);
1391 return ret;
1392 }
1393
1394 cxusb_vprintk(dvbdev, OPS, "input %u detected standard is %lx\n",
1395 (unsigned int)cxdev->input, (unsigned long)*norm);
1396 *norm &= norm_mask;
1397
1398 return 0;
1399}
1400
1401static int cxusb_medion_log_status(struct file *file, void *fh)
1402{
1403 struct dvb_usb_device *dvbdev = video_drvdata(file);
1404 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1405
1406 v4l2_device_call_all(&cxdev->v4l2dev, 0, core, log_status);
1407
1408 return 0;
1409}
1410
1411static const struct v4l2_ioctl_ops cxusb_video_ioctl = {
1412 .vidioc_querycap = cxusb_medion_v_querycap,
1413 .vidioc_enum_fmt_vid_cap = cxusb_medion_v_enum_fmt_vid_cap,
1414 .vidioc_g_fmt_vid_cap = cxusb_medion_g_fmt_vid_cap,
1415 .vidioc_s_fmt_vid_cap = cxusb_medion_s_fmt_vid_cap,
1416 .vidioc_try_fmt_vid_cap = cxusb_medion_try_fmt_vid_cap,
1417 .vidioc_enum_input = cxusb_medion_enum_input,
1418 .vidioc_g_input = cxusb_medion_g_input,
1419 .vidioc_s_input = cxusb_medion_s_input,
1420 .vidioc_g_tuner = cxusb_medion_g_tuner,
1421 .vidioc_s_tuner = cxusb_medion_s_tuner,
1422 .vidioc_g_frequency = cxusb_medion_g_frequency,
1423 .vidioc_s_frequency = cxusb_medion_s_frequency,
1424 .vidioc_g_std = cxusb_medion_g_std,
1425 .vidioc_s_std = cxusb_medion_s_std,
1426 .vidioc_querystd = cxusb_medion_querystd,
1427 .vidioc_log_status = cxusb_medion_log_status,
1428 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1429 .vidioc_querybuf = vb2_ioctl_querybuf,
1430 .vidioc_qbuf = vb2_ioctl_qbuf,
1431 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1432 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1433 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1434 .vidioc_streamon = vb2_ioctl_streamon,
1435 .vidioc_streamoff = vb2_ioctl_streamoff
1436};
1437
1438static const struct v4l2_ioctl_ops cxusb_radio_ioctl = {
1439 .vidioc_querycap = cxusb_medion_v_querycap,
1440 .vidioc_g_tuner = cxusb_medion_g_tuner,
1441 .vidioc_s_tuner = cxusb_medion_s_tuner,
1442 .vidioc_g_frequency = cxusb_medion_g_frequency,
1443 .vidioc_s_frequency = cxusb_medion_s_frequency,
1444 .vidioc_log_status = cxusb_medion_log_status
1445};
1446
1447
1448
1449
1450
1451static struct v4l2_subdev_io_pin_config cxusub_medion_pin_config[] = {
1452 { .pin = CX25840_PIN_DVALID_PRGM0, .function = CX25840_PAD_DEFAULT,
1453 .strength = CX25840_PIN_DRIVE_MEDIUM },
1454 { .pin = CX25840_PIN_PLL_CLK_PRGM7, .function = CX25840_PAD_AUX_PLL },
1455 { .pin = CX25840_PIN_HRESET_PRGM2, .function = CX25840_PAD_ACTIVE,
1456 .strength = CX25840_PIN_DRIVE_MEDIUM }
1457};
1458
1459int cxusb_medion_analog_init(struct dvb_usb_device *dvbdev)
1460{
1461 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1462 u8 tuner_analog_msg_data[] = { 0x9c, 0x60, 0x85, 0x54 };
1463 struct i2c_msg tuner_analog_msg = { .addr = 0x61, .flags = 0,
1464 .buf = tuner_analog_msg_data,
1465 .len =
1466 sizeof(tuner_analog_msg_data) };
1467 struct v4l2_subdev_format subfmt;
1468 int ret;
1469
1470
1471 ret = i2c_transfer(&dvbdev->i2c_adap, &tuner_analog_msg, 1);
1472 if (ret != 1)
1473 dev_warn(&dvbdev->udev->dev,
1474 "tuner analog switch failed (%d)\n", ret);
1475
1476
1477
1478
1479
1480 ret = v4l2_subdev_call(cxdev->cx25840, core, reset, 0);
1481 if (ret != 0)
1482 dev_warn(&dvbdev->udev->dev,
1483 "cx25840 reset failed (%d)\n", ret);
1484
1485 ret = v4l2_subdev_call(cxdev->cx25840, video, s_routing,
1486 CX25840_COMPOSITE1, 0, 0);
1487 if (ret != 0)
1488 dev_warn(&dvbdev->udev->dev,
1489 "cx25840 initial input setting failed (%d)\n", ret);
1490
1491
1492 cxdev->input = 1;
1493 cxdev->videodev->tvnorms = V4L2_STD_ALL;
1494 cxdev->norm = V4L2_STD_PAL;
1495
1496
1497
1498 ret = v4l2_subdev_call(cxdev->cx25840, core, s_io_pin_config,
1499 ARRAY_SIZE(cxusub_medion_pin_config),
1500 cxusub_medion_pin_config);
1501 if (ret != 0)
1502 dev_warn(&dvbdev->udev->dev,
1503 "cx25840 pin config failed (%d)\n", ret);
1504
1505
1506 v4l2_subdev_call(cxdev->tda9887, video, s_std, cxdev->norm);
1507 v4l2_subdev_call(cxdev->tuner, video, s_std, cxdev->norm);
1508 v4l2_subdev_call(cxdev->cx25840, video, s_std, cxdev->norm);
1509
1510 memset(&subfmt, 0, sizeof(subfmt));
1511 subfmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1512 subfmt.format.width = cxdev->width;
1513 subfmt.format.height = cxdev->height;
1514 subfmt.format.code = MEDIA_BUS_FMT_FIXED;
1515 subfmt.format.field = V4L2_FIELD_SEQ_TB;
1516 subfmt.format.colorspace = V4L2_COLORSPACE_SMPTE170M;
1517
1518 ret = v4l2_subdev_call(cxdev->cx25840, pad, set_fmt, NULL, &subfmt);
1519 if (ret != 0)
1520 dev_warn(&dvbdev->udev->dev,
1521 "cx25840 format set failed (%d)\n", ret);
1522
1523 if (ret == 0) {
1524 cxdev->width = subfmt.format.width;
1525 cxdev->height = subfmt.format.height;
1526 }
1527
1528 return 0;
1529}
1530
1531static int cxusb_videoradio_open(struct file *f)
1532{
1533 struct dvb_usb_device *dvbdev = video_drvdata(f);
1534 int ret;
1535
1536
1537
1538
1539
1540
1541 ret = cxusb_medion_get(dvbdev, CXUSB_OPEN_ANALOG);
1542 if (ret != 0)
1543 return ret;
1544
1545 ret = v4l2_fh_open(f);
1546 if (ret != 0)
1547 goto ret_release;
1548
1549 cxusb_vprintk(dvbdev, OPS, "got open\n");
1550
1551 return 0;
1552
1553ret_release:
1554 cxusb_medion_put(dvbdev);
1555
1556 return ret;
1557}
1558
1559static int cxusb_videoradio_release(struct file *f)
1560{
1561 struct video_device *vdev = video_devdata(f);
1562 struct dvb_usb_device *dvbdev = video_drvdata(f);
1563 int ret;
1564
1565 cxusb_vprintk(dvbdev, OPS, "got release\n");
1566
1567 if (vdev->vfl_type == VFL_TYPE_GRABBER)
1568 ret = vb2_fop_release(f);
1569 else
1570 ret = v4l2_fh_release(f);
1571
1572 cxusb_medion_put(dvbdev);
1573
1574 return ret;
1575}
1576
1577static const struct v4l2_file_operations cxusb_video_fops = {
1578 .owner = THIS_MODULE,
1579 .read = vb2_fop_read,
1580 .poll = vb2_fop_poll,
1581 .unlocked_ioctl = video_ioctl2,
1582 .mmap = vb2_fop_mmap,
1583 .open = cxusb_videoradio_open,
1584 .release = cxusb_videoradio_release
1585};
1586
1587static const struct v4l2_file_operations cxusb_radio_fops = {
1588 .owner = THIS_MODULE,
1589 .unlocked_ioctl = video_ioctl2,
1590 .open = cxusb_videoradio_open,
1591 .release = cxusb_videoradio_release
1592};
1593
1594static void cxusb_medion_v4l2_release(struct v4l2_device *v4l2_dev)
1595{
1596 struct cxusb_medion_dev *cxdev =
1597 container_of(v4l2_dev, struct cxusb_medion_dev, v4l2dev);
1598 struct dvb_usb_device *dvbdev = cxdev->dvbdev;
1599
1600 cxusb_vprintk(dvbdev, OPS, "v4l2 device release\n");
1601
1602 v4l2_device_unregister(&cxdev->v4l2dev);
1603
1604 mutex_destroy(&cxdev->dev_lock);
1605
1606 while (completion_done(&cxdev->v4l2_release))
1607 schedule();
1608
1609 complete(&cxdev->v4l2_release);
1610}
1611
1612static void cxusb_medion_videodev_release(struct video_device *vdev)
1613{
1614 struct dvb_usb_device *dvbdev = video_get_drvdata(vdev);
1615
1616 cxusb_vprintk(dvbdev, OPS, "video device release\n");
1617
1618 vb2_queue_release(vdev->queue);
1619
1620 video_device_release(vdev);
1621}
1622
1623static int cxusb_medion_register_analog_video(struct dvb_usb_device *dvbdev)
1624{
1625 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1626 int ret;
1627
1628 cxdev->videoqueue.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1629 cxdev->videoqueue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_READ |
1630 VB2_DMABUF;
1631 cxdev->videoqueue.ops = &cxdev_video_qops;
1632 cxdev->videoqueue.mem_ops = &vb2_vmalloc_memops;
1633 cxdev->videoqueue.drv_priv = dvbdev;
1634 cxdev->videoqueue.buf_struct_size =
1635 sizeof(struct cxusb_medion_vbuffer);
1636 cxdev->videoqueue.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1637 cxdev->videoqueue.min_buffers_needed = 6;
1638 cxdev->videoqueue.lock = &cxdev->dev_lock;
1639
1640 ret = vb2_queue_init(&cxdev->videoqueue);
1641 if (ret) {
1642 dev_err(&dvbdev->udev->dev,
1643 "video queue init failed, ret = %d\n", ret);
1644 return ret;
1645 }
1646
1647 cxdev->videodev = video_device_alloc();
1648 if (!cxdev->videodev) {
1649 dev_err(&dvbdev->udev->dev, "video device alloc failed\n");
1650 ret = -ENOMEM;
1651 goto ret_qrelease;
1652 }
1653
1654 cxdev->videodev->device_caps = videocaps;
1655 cxdev->videodev->fops = &cxusb_video_fops;
1656 cxdev->videodev->v4l2_dev = &cxdev->v4l2dev;
1657 cxdev->videodev->queue = &cxdev->videoqueue;
1658 strscpy(cxdev->videodev->name, "cxusb", sizeof(cxdev->videodev->name));
1659 cxdev->videodev->vfl_dir = VFL_DIR_RX;
1660 cxdev->videodev->ioctl_ops = &cxusb_video_ioctl;
1661 cxdev->videodev->tvnorms = V4L2_STD_ALL;
1662 cxdev->videodev->release = cxusb_medion_videodev_release;
1663 cxdev->videodev->lock = &cxdev->dev_lock;
1664 video_set_drvdata(cxdev->videodev, dvbdev);
1665
1666 ret = video_register_device(cxdev->videodev, VFL_TYPE_GRABBER, -1);
1667 if (ret) {
1668 dev_err(&dvbdev->udev->dev,
1669 "video device register failed, ret = %d\n", ret);
1670 goto ret_vrelease;
1671 }
1672
1673 return 0;
1674
1675ret_vrelease:
1676 video_device_release(cxdev->videodev);
1677
1678ret_qrelease:
1679 vb2_queue_release(&cxdev->videoqueue);
1680
1681 return ret;
1682}
1683
1684static int cxusb_medion_register_analog_radio(struct dvb_usb_device *dvbdev)
1685{
1686 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1687 int ret;
1688
1689 cxdev->radiodev = video_device_alloc();
1690 if (!cxdev->radiodev) {
1691 dev_err(&dvbdev->udev->dev, "radio device alloc failed\n");
1692 return -ENOMEM;
1693 }
1694
1695 cxdev->radiodev->device_caps = radiocaps;
1696 cxdev->radiodev->fops = &cxusb_radio_fops;
1697 cxdev->radiodev->v4l2_dev = &cxdev->v4l2dev;
1698 strscpy(cxdev->radiodev->name, "cxusb", sizeof(cxdev->radiodev->name));
1699 cxdev->radiodev->vfl_dir = VFL_DIR_RX;
1700 cxdev->radiodev->ioctl_ops = &cxusb_radio_ioctl;
1701 cxdev->radiodev->release = video_device_release;
1702 cxdev->radiodev->lock = &cxdev->dev_lock;
1703 video_set_drvdata(cxdev->radiodev, dvbdev);
1704
1705 ret = video_register_device(cxdev->radiodev, VFL_TYPE_RADIO, -1);
1706 if (ret) {
1707 dev_err(&dvbdev->udev->dev,
1708 "radio device register failed, ret = %d\n", ret);
1709 video_device_release(cxdev->radiodev);
1710 return ret;
1711 }
1712
1713 return 0;
1714}
1715
1716static int cxusb_medion_register_analog_subdevs(struct dvb_usb_device *dvbdev)
1717{
1718 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1719 int ret;
1720 struct tuner_setup tun_setup;
1721
1722
1723 cxdev->cx25840 = v4l2_i2c_new_subdev(&cxdev->v4l2dev,
1724 &dvbdev->i2c_adap,
1725 "cx25840", 0x44, NULL);
1726 if (!cxdev->cx25840) {
1727 dev_err(&dvbdev->udev->dev, "cx25840 not found\n");
1728 return -ENODEV;
1729 }
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739 ret = v4l2_subdev_call(cxdev->cx25840, core, init,
1740 CX25840_VCONFIG_FMT_BT656 |
1741 CX25840_VCONFIG_RES_8BIT |
1742 CX25840_VCONFIG_VBIRAW_DISABLED |
1743 CX25840_VCONFIG_ANCDATA_DISABLED |
1744 CX25840_VCONFIG_ACTIVE_COMPOSITE |
1745 CX25840_VCONFIG_VALID_ANDACTIVE |
1746 CX25840_VCONFIG_HRESETW_NORMAL |
1747 CX25840_VCONFIG_CLKGATE_NONE |
1748 CX25840_VCONFIG_DCMODE_DWORDS);
1749 if (ret != 0) {
1750 dev_err(&dvbdev->udev->dev,
1751 "cx25840 init failed (%d)\n", ret);
1752 return ret;
1753 }
1754
1755
1756 cxdev->tuner = v4l2_i2c_new_subdev(&cxdev->v4l2dev,
1757 &dvbdev->i2c_adap,
1758 "tuner", 0x61, NULL);
1759 if (!cxdev->tuner) {
1760 dev_err(&dvbdev->udev->dev, "tuner not found\n");
1761 return -ENODEV;
1762 }
1763
1764
1765 memset(&tun_setup, 0, sizeof(tun_setup));
1766 tun_setup.addr = 0x61;
1767 tun_setup.type = TUNER_PHILIPS_FMD1216ME_MK3;
1768 tun_setup.mode_mask = T_RADIO | T_ANALOG_TV;
1769 v4l2_subdev_call(cxdev->tuner, tuner, s_type_addr, &tun_setup);
1770
1771
1772 cxdev->tda9887 = v4l2_i2c_new_subdev(&cxdev->v4l2dev,
1773 &dvbdev->i2c_adap,
1774 "tuner", 0x43, NULL);
1775 if (!cxdev->tda9887) {
1776 dev_err(&dvbdev->udev->dev, "tda9887 not found\n");
1777 return -ENODEV;
1778 }
1779
1780 return 0;
1781}
1782
1783int cxusb_medion_register_analog(struct dvb_usb_device *dvbdev)
1784{
1785 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1786 int ret;
1787
1788 mutex_init(&cxdev->dev_lock);
1789
1790 init_completion(&cxdev->v4l2_release);
1791
1792 cxdev->v4l2dev.release = cxusb_medion_v4l2_release;
1793
1794 ret = v4l2_device_register(&dvbdev->udev->dev, &cxdev->v4l2dev);
1795 if (ret != 0) {
1796 dev_err(&dvbdev->udev->dev,
1797 "V4L2 device registration failed, ret = %d\n", ret);
1798 mutex_destroy(&cxdev->dev_lock);
1799 return ret;
1800 }
1801
1802 ret = cxusb_medion_register_analog_subdevs(dvbdev);
1803 if (ret)
1804 goto ret_unregister;
1805
1806 INIT_WORK(&cxdev->urbwork, cxusb_medion_v_complete_work);
1807 INIT_LIST_HEAD(&cxdev->buflist);
1808
1809 cxdev->width = 320;
1810 cxdev->height = 240;
1811
1812 ret = cxusb_medion_register_analog_video(dvbdev);
1813 if (ret)
1814 goto ret_unregister;
1815
1816 ret = cxusb_medion_register_analog_radio(dvbdev);
1817 if (ret)
1818 goto ret_vunreg;
1819
1820 return 0;
1821
1822ret_vunreg:
1823 video_unregister_device(cxdev->videodev);
1824
1825ret_unregister:
1826 v4l2_device_put(&cxdev->v4l2dev);
1827 wait_for_completion(&cxdev->v4l2_release);
1828
1829 return ret;
1830}
1831
1832void cxusb_medion_unregister_analog(struct dvb_usb_device *dvbdev)
1833{
1834 struct cxusb_medion_dev *cxdev = dvbdev->priv;
1835
1836 cxusb_vprintk(dvbdev, OPS, "unregistering analog\n");
1837
1838 video_unregister_device(cxdev->radiodev);
1839 video_unregister_device(cxdev->videodev);
1840
1841 v4l2_device_put(&cxdev->v4l2dev);
1842 wait_for_completion(&cxdev->v4l2_release);
1843
1844 cxusb_vprintk(dvbdev, OPS, "analog unregistered\n");
1845}
1846
