summaryrefslogtreecommitdiff
path: root/drivers/media/video/cx18/cx18-ioctl.c
blob: 4a93af2e4bb6117da03ed07a0d2b3272cac75c39 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
/*
 *  cx18 ioctl system call
 *
 *  Derived from ivtv-ioctl.c
 *
 *  Copyright (C) 2007  Hans Verkuil <hverkuil@xs4all.nl>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 *  02111-1307  USA
 */

#include "cx18-driver.h"
#include "cx18-version.h"
#include "cx18-mailbox.h"
#include "cx18-i2c.h"
#include "cx18-queue.h"
#include "cx18-fileops.h"
#include "cx18-vbi.h"
#include "cx18-audio.h"
#include "cx18-video.h"
#include "cx18-streams.h"
#include "cx18-ioctl.h"
#include "cx18-gpio.h"
#include "cx18-controls.h"
#include "cx18-cards.h"
#include "cx18-av-core.h"
#include <media/tveeprom.h>
#include <media/v4l2-chip-ident.h>
#include <linux/i2c-id.h>

u16 service2vbi(int type)
{
	switch (type) {
	case V4L2_SLICED_TELETEXT_B:
		return CX18_SLICED_TYPE_TELETEXT_B;
	case V4L2_SLICED_CAPTION_525:
		return CX18_SLICED_TYPE_CAPTION_525;
	case V4L2_SLICED_WSS_625:
		return CX18_SLICED_TYPE_WSS_625;
	case V4L2_SLICED_VPS:
		return CX18_SLICED_TYPE_VPS;
	default:
		return 0;
	}
}

static int valid_service_line(int field, int line, int is_pal)
{
	return (is_pal && line >= 6 && (line != 23 || field == 0)) ||
	       (!is_pal && line >= 10 && line < 22);
}

static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
{
	u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
	int i;

	set = set & valid_set;
	if (set == 0 || !valid_service_line(field, line, is_pal))
		return 0;
	if (!is_pal) {
		if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
			return V4L2_SLICED_CAPTION_525;
	} else {
		if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
			return V4L2_SLICED_VPS;
		if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
			return V4L2_SLICED_WSS_625;
		if (line == 23)
			return 0;
	}
	for (i = 0; i < 32; i++) {
		if ((1 << i) & set)
			return 1 << i;
	}
	return 0;
}

void expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
	u16 set = fmt->service_set;
	int f, l;

	fmt->service_set = 0;
	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++)
			fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
	}
}

static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
	int f, l;
	u16 set = 0;

	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
			set |= fmt->service_lines[f][l];
		}
	}
	return set != 0;
}

u16 get_service_set(struct v4l2_sliced_vbi_format *fmt)
{
	int f, l;
	u16 set = 0;

	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++)
			set |= fmt->service_lines[f][l];
	}
	return set;
}

static const struct {
	v4l2_std_id  std;
	char        *name;
} enum_stds[] = {
	{ V4L2_STD_PAL_BG | V4L2_STD_PAL_H, "PAL-BGH" },
	{ V4L2_STD_PAL_DK,    "PAL-DK"    },
	{ V4L2_STD_PAL_I,     "PAL-I"     },
	{ V4L2_STD_PAL_M,     "PAL-M"     },
	{ V4L2_STD_PAL_N,     "PAL-N"     },
	{ V4L2_STD_PAL_Nc,    "PAL-Nc"    },
	{ V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, "SECAM-BGH" },
	{ V4L2_STD_SECAM_DK,  "SECAM-DK"  },
	{ V4L2_STD_SECAM_L,   "SECAM-L"   },
	{ V4L2_STD_SECAM_LC,  "SECAM-L'"  },
	{ V4L2_STD_NTSC_M,    "NTSC-M"    },
	{ V4L2_STD_NTSC_M_JP, "NTSC-J"    },
	{ V4L2_STD_NTSC_M_KR, "NTSC-K"    },
};

static const struct v4l2_standard cx18_std_60hz = {
	.frameperiod = {.numerator = 1001, .denominator = 30000},
	.framelines = 525,
};

static const struct v4l2_standard cx18_std_50hz = {
	.frameperiod = { .numerator = 1, .denominator = 25 },
	.framelines = 625,
};

static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg)
{
	struct v4l2_register *regs = arg;
	unsigned long flags;

	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
	if (regs->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
		return -EINVAL;

	spin_lock_irqsave(&cx18_cards_lock, flags);
	if (cmd == VIDIOC_DBG_G_REGISTER)
		regs->val = read_enc(regs->reg);
	else
		write_enc(regs->val, regs->reg);
	spin_unlock_irqrestore(&cx18_cards_lock, flags);
	return 0;
}

static int cx18_get_fmt(struct cx18 *cx, int streamtype, struct v4l2_format *fmt)
{
	switch (fmt->type) {
	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
		fmt->fmt.pix.width = cx->params.width;
		fmt->fmt.pix.height = cx->params.height;
		fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
		fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
		if (streamtype == CX18_ENC_STREAM_TYPE_YUV) {
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_HM12;
			/* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
			fmt->fmt.pix.sizeimage =
				fmt->fmt.pix.height * fmt->fmt.pix.width +
				fmt->fmt.pix.height * (fmt->fmt.pix.width / 2);
		} else {
			fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
			fmt->fmt.pix.sizeimage = 128 * 1024;
		}
		break;

	case V4L2_BUF_TYPE_VBI_CAPTURE:
		fmt->fmt.vbi.sampling_rate = 27000000;
		fmt->fmt.vbi.offset = 248;
		fmt->fmt.vbi.samples_per_line = cx->vbi.raw_decoder_line_size - 4;
		fmt->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
		fmt->fmt.vbi.start[0] = cx->vbi.start[0];
		fmt->fmt.vbi.start[1] = cx->vbi.start[1];
		fmt->fmt.vbi.count[0] = fmt->fmt.vbi.count[1] = cx->vbi.count;
		break;

	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
	{
		struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;

		vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
		memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved));
		memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));

		cx18_av_cmd(cx, VIDIOC_G_FMT, fmt);
		vbifmt->service_set = get_service_set(vbifmt);
		break;
	}
	default:
		return -EINVAL;
	}
	return 0;
}

static int cx18_try_or_set_fmt(struct cx18 *cx, int streamtype,
		struct v4l2_format *fmt, int set_fmt)
{
	struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
	u16 set;

	/* set window size */
	if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		int w = fmt->fmt.pix.width;
		int h = fmt->fmt.pix.height;

		if (w > 720)
			w = 720;
		else if (w < 1)
			w = 1;
		if (h > (cx->is_50hz ? 576 : 480))
			h = (cx->is_50hz ? 576 : 480);
		else if (h < 2)
			h = 2;
		cx18_get_fmt(cx, streamtype, fmt);
		fmt->fmt.pix.width = w;
		fmt->fmt.pix.height = h;

		if (!set_fmt || (cx->params.width == w && cx->params.height == h))
			return 0;
		if (atomic_read(&cx->capturing) > 0)
			return -EBUSY;

		cx->params.width = w;
		cx->params.height = h;
		if (w != 720 || h != (cx->is_50hz ? 576 : 480))
			cx->params.video_temporal_filter = 0;
		else
			cx->params.video_temporal_filter = 8;
		cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
		return cx18_get_fmt(cx, streamtype, fmt);
	}

	/* set raw VBI format */
	if (fmt->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
		if (set_fmt && streamtype == CX18_ENC_STREAM_TYPE_VBI &&
		    cx->vbi.sliced_in->service_set &&
		    atomic_read(&cx->capturing) > 0)
			return -EBUSY;
		if (set_fmt) {
			cx->vbi.sliced_in->service_set = 0;
			cx18_av_cmd(cx, VIDIOC_S_FMT, &cx->vbi.in);
		}
		return cx18_get_fmt(cx, streamtype, fmt);
	}

	/* any else but sliced VBI capture is an error */
	if (fmt->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
		return -EINVAL;

	/* TODO: implement sliced VBI, for now silently return 0 */
	return 0;

	/* set sliced VBI capture format */
	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	memset(vbifmt->reserved, 0, sizeof(vbifmt->reserved));

	if (vbifmt->service_set)
		expand_service_set(vbifmt, cx->is_50hz);
	set = check_service_set(vbifmt, cx->is_50hz);
	vbifmt->service_set = get_service_set(vbifmt);

	if (!set_fmt)
		return 0;
	if (set == 0)
		return -EINVAL;
	if (atomic_read(&cx->capturing) > 0 && cx->vbi.sliced_in->service_set == 0)
		return -EBUSY;
	cx18_av_cmd(cx, VIDIOC_S_FMT, fmt);
	memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
	return 0;
}

static int cx18_debug_ioctls(struct file *filp, unsigned int cmd, void *arg)
{
	struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data;
	struct cx18 *cx = id->cx;
	struct v4l2_register *reg = arg;

	switch (cmd) {
	/* ioctls to allow direct access to the encoder registers for testing */
	case VIDIOC_DBG_G_REGISTER:
		if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
			return cx18_cxc(cx, cmd, arg);
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
			return cx18_i2c_id(cx, reg->match_chip, cmd, arg);
		return cx18_call_i2c_client(cx, reg->match_chip, cmd, arg);

	case VIDIOC_DBG_S_REGISTER:
		if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
			return cx18_cxc(cx, cmd, arg);
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
			return cx18_i2c_id(cx, reg->match_chip, cmd, arg);
		return cx18_call_i2c_client(cx, reg->match_chip, cmd, arg);

	case VIDIOC_G_CHIP_IDENT: {
		struct v4l2_chip_ident *chip = arg;

		chip->ident = V4L2_IDENT_NONE;
		chip->revision = 0;
		if (reg->match_type == V4L2_CHIP_MATCH_HOST) {
			if (v4l2_chip_match_host(reg->match_type, reg->match_chip)) {
				struct v4l2_chip_ident *chip = arg;

				chip->ident = V4L2_IDENT_CX23418;
			}
			return 0;
		}
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
			return cx18_i2c_id(cx, reg->match_chip, cmd, arg);
		if (reg->match_type == V4L2_CHIP_MATCH_I2C_ADDR)
			return cx18_call_i2c_client(cx, reg->match_chip, cmd, arg);
		return -EINVAL;
	}

	case VIDIOC_INT_S_AUDIO_ROUTING: {
		struct v4l2_routing *route = arg;

		cx18_audio_set_route(cx, route);
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

int cx18_v4l2_ioctls(struct cx18 *cx, struct file *filp, unsigned cmd, void *arg)
{
	struct cx18_open_id *id = NULL;

	if (filp)
		id = (struct cx18_open_id *)filp->private_data;

	switch (cmd) {
	case VIDIOC_G_PRIORITY:
	{
		enum v4l2_priority *p = arg;

		*p = v4l2_prio_max(&cx->prio);
		break;
	}

	case VIDIOC_S_PRIORITY:
	{
		enum v4l2_priority *prio = arg;

		return v4l2_prio_change(&cx->prio, &id->prio, *prio);
	}

	case VIDIOC_QUERYCAP:{
		struct v4l2_capability *vcap = arg;

		memset(vcap, 0, sizeof(*vcap));
		strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
		strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
		strlcpy(vcap->bus_info, pci_name(cx->dev), sizeof(vcap->bus_info));
		vcap->version = CX18_DRIVER_VERSION; 	    /* version */
		vcap->capabilities = cx->v4l2_cap; 	    /* capabilities */

		/* reserved.. must set to 0! */
		vcap->reserved[0] = vcap->reserved[1] =
			vcap->reserved[2] = vcap->reserved[3] = 0;
		break;
	}

	case VIDIOC_ENUMAUDIO:{
		struct v4l2_audio *vin = arg;

		return cx18_get_audio_input(cx, vin->index, vin);
	}

	case VIDIOC_G_AUDIO:{
		struct v4l2_audio *vin = arg;

		vin->index = cx->audio_input;
		return cx18_get_audio_input(cx, vin->index, vin);
	}

	case VIDIOC_S_AUDIO:{
		struct v4l2_audio *vout = arg;

		if (vout->index >= cx->nof_audio_inputs)
			return -EINVAL;
		cx->audio_input = vout->index;
		cx18_audio_set_io(cx);
		break;
	}

	case VIDIOC_ENUMINPUT:{
		struct v4l2_input *vin = arg;

		/* set it to defaults from our table */
		return cx18_get_input(cx, vin->index, vin);
	}

	case VIDIOC_TRY_FMT:
	case VIDIOC_S_FMT: {
		struct v4l2_format *fmt = arg;

		return cx18_try_or_set_fmt(cx, id->type, fmt, cmd == VIDIOC_S_FMT);
	}

	case VIDIOC_G_FMT: {
		struct v4l2_format *fmt = arg;
		int type = fmt->type;

		memset(fmt, 0, sizeof(*fmt));
		fmt->type = type;
		return cx18_get_fmt(cx, id->type, fmt);
	}

	case VIDIOC_CROPCAP: {
		struct v4l2_cropcap *cropcap = arg;

		if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
			return -EINVAL;
		cropcap->bounds.top = cropcap->bounds.left = 0;
		cropcap->bounds.width = 720;
		cropcap->bounds.height = cx->is_50hz ? 576 : 480;
		cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
		cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
		cropcap->defrect = cropcap->bounds;
		return 0;
	}

	case VIDIOC_S_CROP: {
		struct v4l2_crop *crop = arg;

		if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
			return -EINVAL;
		return cx18_av_cmd(cx, VIDIOC_S_CROP, arg);
	}

	case VIDIOC_G_CROP: {
		struct v4l2_crop *crop = arg;

		if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
			return -EINVAL;
		return cx18_av_cmd(cx, VIDIOC_G_CROP, arg);
	}

	case VIDIOC_ENUM_FMT: {
		static struct v4l2_fmtdesc formats[] = {
			{ 0, 0, 0,
			  "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12,
			  { 0, 0, 0, 0 }
			},
			{ 1, 0, V4L2_FMT_FLAG_COMPRESSED,
			  "MPEG", V4L2_PIX_FMT_MPEG,
			  { 0, 0, 0, 0 }
			}
		};
		struct v4l2_fmtdesc *fmt = arg;
		enum v4l2_buf_type type = fmt->type;

		switch (type) {
		case V4L2_BUF_TYPE_VIDEO_CAPTURE:
			break;
		default:
			return -EINVAL;
		}
		if (fmt->index > 1)
			return -EINVAL;
		*fmt = formats[fmt->index];
		fmt->type = type;
		return 0;
	}

	case VIDIOC_G_INPUT:{
		*(int *)arg = cx->active_input;
		break;
	}

	case VIDIOC_S_INPUT:{
		int inp = *(int *)arg;

		if (inp < 0 || inp >= cx->nof_inputs)
			return -EINVAL;

		if (inp == cx->active_input) {
			CX18_DEBUG_INFO("Input unchanged\n");
			break;
		}
		CX18_DEBUG_INFO("Changing input from %d to %d\n",
				cx->active_input, inp);

		cx->active_input = inp;
		/* Set the audio input to whatever is appropriate for the
		   input type. */
		cx->audio_input = cx->card->video_inputs[inp].audio_index;

		/* prevent others from messing with the streams until
		   we're finished changing inputs. */
		cx18_mute(cx);
		cx18_video_set_io(cx);
		cx18_audio_set_io(cx);
		cx18_unmute(cx);
		break;
	}

	case VIDIOC_G_FREQUENCY:{
		struct v4l2_frequency *vf = arg;

		if (vf->tuner != 0)
			return -EINVAL;
		cx18_call_i2c_clients(cx, cmd, arg);
		break;
	}

	case VIDIOC_S_FREQUENCY:{
		struct v4l2_frequency vf = *(struct v4l2_frequency *)arg;

		if (vf.tuner != 0)
			return -EINVAL;

		cx18_mute(cx);
		CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf.frequency);
		cx18_call_i2c_clients(cx, cmd, &vf);
		cx18_unmute(cx);
		break;
	}

	case VIDIOC_ENUMSTD:{
		struct v4l2_standard *vs = arg;
		int idx = vs->index;

		if (idx < 0 || idx >= ARRAY_SIZE(enum_stds))
			return -EINVAL;

		*vs = (enum_stds[idx].std & V4L2_STD_525_60) ?
				cx18_std_60hz : cx18_std_50hz;
		vs->index = idx;
		vs->id = enum_stds[idx].std;
		strlcpy(vs->name, enum_stds[idx].name, sizeof(vs->name));
		break;
	}

	case VIDIOC_G_STD:{
		*(v4l2_std_id *) arg = cx->std;
		break;
	}

	case VIDIOC_S_STD: {
		v4l2_std_id std = *(v4l2_std_id *) arg;

		if ((std & V4L2_STD_ALL) == 0)
			return -EINVAL;

		if (std == cx->std)
			break;

		if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
		    atomic_read(&cx->capturing) > 0) {
			/* Switching standard would turn off the radio or mess
			   with already running streams, prevent that by
			   returning EBUSY. */
			return -EBUSY;
		}

		cx->std = std;
		cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
		cx->params.is_50hz = cx->is_50hz = !cx->is_60hz;
		cx->params.width = 720;
		cx->params.height = cx->is_50hz ? 576 : 480;
		cx->vbi.count = cx->is_50hz ? 18 : 12;
		cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
		cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
		cx->vbi.sliced_decoder_line_size = cx->is_60hz ? 272 : 284;
		CX18_DEBUG_INFO("Switching standard to %llx.\n", (unsigned long long)cx->std);

		/* Tuner */
		cx18_call_i2c_clients(cx, VIDIOC_S_STD, &cx->std);
		break;
	}

	case VIDIOC_S_TUNER: {	/* Setting tuner can only set audio mode */
		struct v4l2_tuner *vt = arg;

		if (vt->index != 0)
			return -EINVAL;

		cx18_call_i2c_clients(cx, VIDIOC_S_TUNER, vt);
		break;
	}

	case VIDIOC_G_TUNER: {
		struct v4l2_tuner *vt = arg;

		if (vt->index != 0)
			return -EINVAL;

		memset(vt, 0, sizeof(*vt));
		cx18_call_i2c_clients(cx, VIDIOC_G_TUNER, vt);

		if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) {
			strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
			vt->type = V4L2_TUNER_RADIO;
		} else {
			strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
			vt->type = V4L2_TUNER_ANALOG_TV;
		}
		break;
	}

	case VIDIOC_G_SLICED_VBI_CAP: {
		struct v4l2_sliced_vbi_cap *cap = arg;
		int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
		int f, l;
		enum v4l2_buf_type type = cap->type;

		memset(cap, 0, sizeof(*cap));
		cap->type = type;
		if (type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) {
			for (f = 0; f < 2; f++) {
				for (l = 0; l < 24; l++) {
					if (valid_service_line(f, l, cx->is_50hz))
						cap->service_lines[f][l] = set;
				}
			}
			return 0;
		}
		return -EINVAL;
	}

	case VIDIOC_ENCODER_CMD:
	case VIDIOC_TRY_ENCODER_CMD: {
		struct v4l2_encoder_cmd *enc = arg;
		int try = cmd == VIDIOC_TRY_ENCODER_CMD;

		memset(&enc->raw, 0, sizeof(enc->raw));
		switch (enc->cmd) {
		case V4L2_ENC_CMD_START:
			enc->flags = 0;
			if (try)
				return 0;
			return cx18_start_capture(id);

		case V4L2_ENC_CMD_STOP:
			enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
			if (try)
				return 0;
			cx18_stop_capture(id, enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
			return 0;

		case V4L2_ENC_CMD_PAUSE:
			enc->flags = 0;
			if (try)
				return 0;
			if (!atomic_read(&cx->capturing))
				return -EPERM;
			if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
				return 0;
			cx18_mute(cx);
			cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, cx18_find_handle(cx));
			break;

		case V4L2_ENC_CMD_RESUME:
			enc->flags = 0;
			if (try)
				return 0;
			if (!atomic_read(&cx->capturing))
				return -EPERM;
			if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
				return 0;
			cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, cx18_find_handle(cx));
			cx18_unmute(cx);
			break;
		default:
			return -EINVAL;
		}
		break;
	}

	case VIDIOC_LOG_STATUS:
	{
		struct v4l2_input vidin;
		struct v4l2_audio audin;
		int i;

		CX18_INFO("=================  START STATUS CARD #%d  =================\n", cx->num);
		if (cx->hw_flags & CX18_HW_TVEEPROM) {
			struct tveeprom tv;

			cx18_read_eeprom(cx, &tv);
		}
		cx18_call_i2c_clients(cx, VIDIOC_LOG_STATUS, NULL);
		cx18_get_input(cx, cx->active_input, &vidin);
		cx18_get_audio_input(cx, cx->audio_input, &audin);
		CX18_INFO("Video Input: %s\n", vidin.name);
		CX18_INFO("Audio Input: %s\n", audin.name);
		CX18_INFO("Tuner: %s\n",
			test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ?
			"Radio" : "TV");
		cx2341x_log_status(&cx->params, cx->name);
		CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
		for (i = 0; i < CX18_MAX_STREAMS; i++) {
			struct cx18_stream *s = &cx->streams[i];

			if (s->v4l2dev == NULL || s->buffers == 0)
				continue;
			CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
				s->name, s->s_flags,
				(s->buffers - s->q_free.buffers) * 100 / s->buffers,
				(s->buffers * s->buf_size) / 1024, s->buffers);
		}
		CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
				(long long)cx->mpg_data_received,
				(long long)cx->vbi_data_inserted);
		CX18_INFO("==================  END STATUS CARD #%d  ==================\n", cx->num);
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

static int cx18_v4l2_do_ioctl(struct inode *inode, struct file *filp,
			      unsigned int cmd, void *arg)
{
	struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data;
	struct cx18 *cx = id->cx;
	int ret;

	/* check priority */
	switch (cmd) {
	case VIDIOC_S_CTRL:
	case VIDIOC_S_STD:
	case VIDIOC_S_INPUT:
	case VIDIOC_S_TUNER:
	case VIDIOC_S_FREQUENCY:
	case VIDIOC_S_FMT:
	case VIDIOC_S_CROP:
	case VIDIOC_S_EXT_CTRLS:
		ret = v4l2_prio_check(&cx->prio, &id->prio);
		if (ret)
			return ret;
	}

	switch (cmd) {
	case VIDIOC_DBG_G_REGISTER:
	case VIDIOC_DBG_S_REGISTER:
	case VIDIOC_G_CHIP_IDENT:
	case VIDIOC_INT_S_AUDIO_ROUTING:
	case VIDIOC_INT_RESET:
		if (cx18_debug & CX18_DBGFLG_IOCTL) {
			printk(KERN_INFO "cx18%d ioctl: ", cx->num);
			v4l_printk_ioctl(cmd);
		}
		return cx18_debug_ioctls(filp, cmd, arg);

	case VIDIOC_G_PRIORITY:
	case VIDIOC_S_PRIORITY:
	case VIDIOC_QUERYCAP:
	case VIDIOC_ENUMINPUT:
	case VIDIOC_G_INPUT:
	case VIDIOC_S_INPUT:
	case VIDIOC_G_FMT:
	case VIDIOC_S_FMT:
	case VIDIOC_TRY_FMT:
	case VIDIOC_ENUM_FMT:
	case VIDIOC_CROPCAP:
	case VIDIOC_G_CROP:
	case VIDIOC_S_CROP:
	case VIDIOC_G_FREQUENCY:
	case VIDIOC_S_FREQUENCY:
	case VIDIOC_ENUMSTD:
	case VIDIOC_G_STD:
	case VIDIOC_S_STD:
	case VIDIOC_S_TUNER:
	case VIDIOC_G_TUNER:
	case VIDIOC_ENUMAUDIO:
	case VIDIOC_S_AUDIO:
	case VIDIOC_G_AUDIO:
	case VIDIOC_G_SLICED_VBI_CAP:
	case VIDIOC_LOG_STATUS:
	case VIDIOC_G_ENC_INDEX:
	case VIDIOC_ENCODER_CMD:
	case VIDIOC_TRY_ENCODER_CMD:
		if (cx18_debug & CX18_DBGFLG_IOCTL) {
			printk(KERN_INFO "cx18%d ioctl: ", cx->num);
			v4l_printk_ioctl(cmd);
		}
		return cx18_v4l2_ioctls(cx, filp, cmd, arg);

	case VIDIOC_QUERYMENU:
	case VIDIOC_QUERYCTRL:
	case VIDIOC_S_CTRL:
	case VIDIOC_G_CTRL:
	case VIDIOC_S_EXT_CTRLS:
	case VIDIOC_G_EXT_CTRLS:
	case VIDIOC_TRY_EXT_CTRLS:
		if (cx18_debug & CX18_DBGFLG_IOCTL) {
			printk(KERN_INFO "cx18%d ioctl: ", cx->num);
			v4l_printk_ioctl(cmd);
		}
		return cx18_control_ioctls(cx, cmd, arg);

	case 0x00005401:	/* Handle isatty() calls */
		return -EINVAL;
	default:
		return v4l_compat_translate_ioctl(inode, filp, cmd, arg,
						   cx18_v4l2_do_ioctl);
	}
	return 0;
}

int cx18_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
		    unsigned long arg)
{
	struct cx18_open_id *id = (struct cx18_open_id *)filp->private_data;
	struct cx18 *cx = id->cx;
	int res;

	mutex_lock(&cx->serialize_lock);
	res = video_usercopy(inode, filp, cmd, arg, cx18_v4l2_do_ioctl);
	mutex_unlock(&cx->serialize_lock);
	return res;
}