1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * cx18 ioctl system call
4 *
5 * Derived from ivtv-ioctl.c
6 *
7 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
8 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
9 */
10
11 #include "cx18-driver.h"
12 #include "cx18-io.h"
13 #include "cx18-version.h"
14 #include "cx18-mailbox.h"
15 #include "cx18-i2c.h"
16 #include "cx18-queue.h"
17 #include "cx18-fileops.h"
18 #include "cx18-vbi.h"
19 #include "cx18-audio.h"
20 #include "cx18-video.h"
21 #include "cx18-streams.h"
22 #include "cx18-ioctl.h"
23 #include "cx18-gpio.h"
24 #include "cx18-controls.h"
25 #include "cx18-cards.h"
26 #include "cx18-av-core.h"
27 #include <media/tveeprom.h>
28 #include <media/v4l2-event.h>
29
cx18_service2vbi(int type)30 u16 cx18_service2vbi(int type)
31 {
32 switch (type) {
33 case V4L2_SLICED_TELETEXT_B:
34 return CX18_SLICED_TYPE_TELETEXT_B;
35 case V4L2_SLICED_CAPTION_525:
36 return CX18_SLICED_TYPE_CAPTION_525;
37 case V4L2_SLICED_WSS_625:
38 return CX18_SLICED_TYPE_WSS_625;
39 case V4L2_SLICED_VPS:
40 return CX18_SLICED_TYPE_VPS;
41 default:
42 return 0;
43 }
44 }
45
46 /* Check if VBI services are allowed on the (field, line) for the video std */
valid_service_line(int field,int line,int is_pal)47 static int valid_service_line(int field, int line, int is_pal)
48 {
49 return (is_pal && line >= 6 &&
50 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||
51 (!is_pal && line >= 10 && line < 22);
52 }
53
54 /*
55 * For a (field, line, std) and inbound potential set of services for that line,
56 * return the first valid service of those passed in the incoming set for that
57 * line in priority order:
58 * CC, VPS, or WSS over TELETEXT for well known lines
59 * TELETEXT, before VPS, before CC, before WSS, for other lines
60 */
select_service_from_set(int field,int line,u16 set,int is_pal)61 static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
62 {
63 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
64 int i;
65
66 set = set & valid_set;
67 if (set == 0 || !valid_service_line(field, line, is_pal))
68 return 0;
69 if (!is_pal) {
70 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
71 return V4L2_SLICED_CAPTION_525;
72 } else {
73 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
74 return V4L2_SLICED_VPS;
75 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
76 return V4L2_SLICED_WSS_625;
77 if (line == 23)
78 return 0;
79 }
80 for (i = 0; i < 32; i++) {
81 if (BIT(i) & set)
82 return 1 << i;
83 }
84 return 0;
85 }
86
87 /*
88 * Expand the service_set of *fmt into valid service_lines for the std,
89 * and clear the passed in fmt->service_set
90 */
cx18_expand_service_set(struct v4l2_sliced_vbi_format * fmt,int is_pal)91 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
92 {
93 u16 set = fmt->service_set;
94 int f, l;
95
96 fmt->service_set = 0;
97 for (f = 0; f < 2; f++) {
98 for (l = 0; l < 24; l++)
99 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
100 }
101 }
102
103 /*
104 * Sanitize the service_lines in *fmt per the video std, and return 1
105 * if any service_line is left as valid after santization
106 */
check_service_set(struct v4l2_sliced_vbi_format * fmt,int is_pal)107 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
108 {
109 int f, l;
110 u16 set = 0;
111
112 for (f = 0; f < 2; f++) {
113 for (l = 0; l < 24; l++) {
114 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
115 set |= fmt->service_lines[f][l];
116 }
117 }
118 return set != 0;
119 }
120
121 /* Compute the service_set from the assumed valid service_lines of *fmt */
cx18_get_service_set(struct v4l2_sliced_vbi_format * fmt)122 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
123 {
124 int f, l;
125 u16 set = 0;
126
127 for (f = 0; f < 2; f++) {
128 for (l = 0; l < 24; l++)
129 set |= fmt->service_lines[f][l];
130 }
131 return set;
132 }
133
cx18_g_fmt_vid_cap(struct file * file,void * fh,struct v4l2_format * fmt)134 static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
135 struct v4l2_format *fmt)
136 {
137 struct cx18_open_id *id = fh2id(fh);
138 struct cx18 *cx = id->cx;
139 struct cx18_stream *s = &cx->streams[id->type];
140 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
141
142 pixfmt->width = cx->cxhdl.width;
143 pixfmt->height = cx->cxhdl.height;
144 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
145 pixfmt->field = V4L2_FIELD_INTERLACED;
146 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
147 pixfmt->pixelformat = s->pixelformat;
148 pixfmt->sizeimage = s->vb_bytes_per_frame;
149 pixfmt->bytesperline = s->vb_bytes_per_line;
150 } else {
151 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
152 pixfmt->sizeimage = 128 * 1024;
153 pixfmt->bytesperline = 0;
154 }
155 return 0;
156 }
157
cx18_g_fmt_vbi_cap(struct file * file,void * fh,struct v4l2_format * fmt)158 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
159 struct v4l2_format *fmt)
160 {
161 struct cx18 *cx = fh2id(fh)->cx;
162 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
163
164 vbifmt->sampling_rate = 27000000;
165 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */
166 vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4;
167 vbifmt->sample_format = V4L2_PIX_FMT_GREY;
168 vbifmt->start[0] = cx->vbi.start[0];
169 vbifmt->start[1] = cx->vbi.start[1];
170 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;
171 vbifmt->flags = 0;
172 vbifmt->reserved[0] = 0;
173 vbifmt->reserved[1] = 0;
174 return 0;
175 }
176
cx18_g_fmt_sliced_vbi_cap(struct file * file,void * fh,struct v4l2_format * fmt)177 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
178 struct v4l2_format *fmt)
179 {
180 struct cx18 *cx = fh2id(fh)->cx;
181 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
182
183 /* sane, V4L2 spec compliant, defaults */
184 vbifmt->reserved[0] = 0;
185 vbifmt->reserved[1] = 0;
186 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
187 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
188 vbifmt->service_set = 0;
189
190 /*
191 * Fetch the configured service_lines and total service_set from the
192 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in
193 * fmt->fmt.sliced under valid calling conditions
194 */
195 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
196 return -EINVAL;
197
198 vbifmt->service_set = cx18_get_service_set(vbifmt);
199 return 0;
200 }
201
cx18_try_fmt_vid_cap(struct file * file,void * fh,struct v4l2_format * fmt)202 static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
203 struct v4l2_format *fmt)
204 {
205 struct cx18_open_id *id = fh2id(fh);
206 struct cx18 *cx = id->cx;
207 int w = fmt->fmt.pix.width;
208 int h = fmt->fmt.pix.height;
209 int min_h = 2;
210
211 w = min(w, 720);
212 w = max(w, 2);
213 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
214 /* YUV height must be a multiple of 32 */
215 h &= ~0x1f;
216 min_h = 32;
217 }
218 h = min(h, cx->is_50hz ? 576 : 480);
219 h = max(h, min_h);
220
221 fmt->fmt.pix.width = w;
222 fmt->fmt.pix.height = h;
223 return 0;
224 }
225
cx18_try_fmt_vbi_cap(struct file * file,void * fh,struct v4l2_format * fmt)226 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
227 struct v4l2_format *fmt)
228 {
229 return cx18_g_fmt_vbi_cap(file, fh, fmt);
230 }
231
cx18_try_fmt_sliced_vbi_cap(struct file * file,void * fh,struct v4l2_format * fmt)232 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
233 struct v4l2_format *fmt)
234 {
235 struct cx18 *cx = fh2id(fh)->cx;
236 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
237
238 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
239 vbifmt->reserved[0] = 0;
240 vbifmt->reserved[1] = 0;
241
242 /* If given a service set, expand it validly & clear passed in set */
243 if (vbifmt->service_set)
244 cx18_expand_service_set(vbifmt, cx->is_50hz);
245 /* Sanitize the service_lines, and compute the new set if any valid */
246 if (check_service_set(vbifmt, cx->is_50hz))
247 vbifmt->service_set = cx18_get_service_set(vbifmt);
248 return 0;
249 }
250
cx18_s_fmt_vid_cap(struct file * file,void * fh,struct v4l2_format * fmt)251 static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
252 struct v4l2_format *fmt)
253 {
254 struct cx18_open_id *id = fh2id(fh);
255 struct cx18 *cx = id->cx;
256 struct v4l2_subdev_format format = {
257 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
258 };
259 struct cx18_stream *s = &cx->streams[id->type];
260 int ret;
261 int w, h;
262
263 ret = cx18_try_fmt_vid_cap(file, fh, fmt);
264 if (ret)
265 return ret;
266 w = fmt->fmt.pix.width;
267 h = fmt->fmt.pix.height;
268
269 if (cx->cxhdl.width == w && cx->cxhdl.height == h &&
270 s->pixelformat == fmt->fmt.pix.pixelformat)
271 return 0;
272
273 if (atomic_read(&cx->ana_capturing) > 0)
274 return -EBUSY;
275
276 s->pixelformat = fmt->fmt.pix.pixelformat;
277 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
278 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
279 if (s->pixelformat == V4L2_PIX_FMT_NV12_16L16) {
280 s->vb_bytes_per_frame = h * 720 * 3 / 2;
281 s->vb_bytes_per_line = 720; /* First plane */
282 } else {
283 s->vb_bytes_per_frame = h * 720 * 2;
284 s->vb_bytes_per_line = 1440; /* Packed */
285 }
286
287 format.format.width = cx->cxhdl.width = w;
288 format.format.height = cx->cxhdl.height = h;
289 format.format.code = MEDIA_BUS_FMT_FIXED;
290 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format);
291 return cx18_g_fmt_vid_cap(file, fh, fmt);
292 }
293
cx18_s_fmt_vbi_cap(struct file * file,void * fh,struct v4l2_format * fmt)294 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
295 struct v4l2_format *fmt)
296 {
297 struct cx18_open_id *id = fh2id(fh);
298 struct cx18 *cx = id->cx;
299 int ret;
300
301 /*
302 * Changing the Encoder's Raw VBI parameters won't have any effect
303 * if any analog capture is ongoing
304 */
305 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
306 return -EBUSY;
307
308 /*
309 * Set the digitizer registers for raw active VBI.
310 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
311 * calling conditions
312 */
313 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
314 if (ret)
315 return ret;
316
317 /* Store our new v4l2 (non-)sliced VBI state */
318 cx->vbi.sliced_in->service_set = 0;
319 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
320
321 return cx18_g_fmt_vbi_cap(file, fh, fmt);
322 }
323
cx18_s_fmt_sliced_vbi_cap(struct file * file,void * fh,struct v4l2_format * fmt)324 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
325 struct v4l2_format *fmt)
326 {
327 struct cx18_open_id *id = fh2id(fh);
328 struct cx18 *cx = id->cx;
329 int ret;
330 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
331
332 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
333
334 /*
335 * Changing the Encoder's Raw VBI parameters won't have any effect
336 * if any analog capture is ongoing
337 */
338 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
339 return -EBUSY;
340
341 /*
342 * Set the service_lines requested in the digitizer/slicer registers.
343 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
344 * passed in fmt->fmt.sliced under valid calling conditions
345 */
346 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
347 if (ret)
348 return ret;
349 /* Store our current v4l2 sliced VBI settings */
350 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
351 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
352 return 0;
353 }
354
355 #ifdef CONFIG_VIDEO_ADV_DEBUG
cx18_g_register(struct file * file,void * fh,struct v4l2_dbg_register * reg)356 static int cx18_g_register(struct file *file, void *fh,
357 struct v4l2_dbg_register *reg)
358 {
359 struct cx18 *cx = fh2id(fh)->cx;
360
361 if (reg->reg & 0x3)
362 return -EINVAL;
363 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
364 return -EINVAL;
365 reg->size = 4;
366 reg->val = cx18_read_enc(cx, reg->reg);
367 return 0;
368 }
369
cx18_s_register(struct file * file,void * fh,const struct v4l2_dbg_register * reg)370 static int cx18_s_register(struct file *file, void *fh,
371 const struct v4l2_dbg_register *reg)
372 {
373 struct cx18 *cx = fh2id(fh)->cx;
374
375 if (reg->reg & 0x3)
376 return -EINVAL;
377 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
378 return -EINVAL;
379 cx18_write_enc(cx, reg->val, reg->reg);
380 return 0;
381 }
382 #endif
383
cx18_querycap(struct file * file,void * fh,struct v4l2_capability * vcap)384 static int cx18_querycap(struct file *file, void *fh,
385 struct v4l2_capability *vcap)
386 {
387 struct cx18_open_id *id = fh2id(fh);
388 struct cx18 *cx = id->cx;
389
390 strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
391 strscpy(vcap->card, cx->card_name, sizeof(vcap->card));
392 vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS;
393 return 0;
394 }
395
cx18_enumaudio(struct file * file,void * fh,struct v4l2_audio * vin)396 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
397 {
398 struct cx18 *cx = fh2id(fh)->cx;
399
400 return cx18_get_audio_input(cx, vin->index, vin);
401 }
402
cx18_g_audio(struct file * file,void * fh,struct v4l2_audio * vin)403 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
404 {
405 struct cx18 *cx = fh2id(fh)->cx;
406
407 vin->index = cx->audio_input;
408 return cx18_get_audio_input(cx, vin->index, vin);
409 }
410
cx18_s_audio(struct file * file,void * fh,const struct v4l2_audio * vout)411 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout)
412 {
413 struct cx18 *cx = fh2id(fh)->cx;
414
415 if (vout->index >= cx->nof_audio_inputs)
416 return -EINVAL;
417 cx->audio_input = vout->index;
418 cx18_audio_set_io(cx);
419 return 0;
420 }
421
cx18_enum_input(struct file * file,void * fh,struct v4l2_input * vin)422 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
423 {
424 struct cx18 *cx = fh2id(fh)->cx;
425
426 /* set it to defaults from our table */
427 return cx18_get_input(cx, vin->index, vin);
428 }
429
cx18_g_pixelaspect(struct file * file,void * fh,int type,struct v4l2_fract * f)430 static int cx18_g_pixelaspect(struct file *file, void *fh,
431 int type, struct v4l2_fract *f)
432 {
433 struct cx18 *cx = fh2id(fh)->cx;
434
435 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
436 return -EINVAL;
437
438 f->numerator = cx->is_50hz ? 54 : 11;
439 f->denominator = cx->is_50hz ? 59 : 10;
440 return 0;
441 }
442
cx18_g_selection(struct file * file,void * fh,struct v4l2_selection * sel)443 static int cx18_g_selection(struct file *file, void *fh,
444 struct v4l2_selection *sel)
445 {
446 struct cx18 *cx = fh2id(fh)->cx;
447
448 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
449 return -EINVAL;
450 switch (sel->target) {
451 case V4L2_SEL_TGT_CROP_BOUNDS:
452 case V4L2_SEL_TGT_CROP_DEFAULT:
453 sel->r.top = sel->r.left = 0;
454 sel->r.width = 720;
455 sel->r.height = cx->is_50hz ? 576 : 480;
456 break;
457 default:
458 return -EINVAL;
459 }
460 return 0;
461 }
462
cx18_enum_fmt_vid_cap(struct file * file,void * fh,struct v4l2_fmtdesc * fmt)463 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
464 struct v4l2_fmtdesc *fmt)
465 {
466 static const struct v4l2_fmtdesc formats[] = {
467 {
468 .index = 0,
469 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
470 .description = "HM12 (YUV 4:1:1)",
471 .pixelformat = V4L2_PIX_FMT_NV12_16L16,
472 },
473 {
474 .index = 1,
475 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
476 .flags = V4L2_FMT_FLAG_COMPRESSED,
477 .description = "MPEG",
478 .pixelformat = V4L2_PIX_FMT_MPEG,
479 },
480 {
481 .index = 2,
482 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
483 .description = "UYVY 4:2:2",
484 .pixelformat = V4L2_PIX_FMT_UYVY,
485 },
486 };
487
488 if (fmt->index > ARRAY_SIZE(formats) - 1)
489 return -EINVAL;
490 *fmt = formats[fmt->index];
491 return 0;
492 }
493
cx18_g_input(struct file * file,void * fh,unsigned int * i)494 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
495 {
496 struct cx18 *cx = fh2id(fh)->cx;
497
498 *i = cx->active_input;
499 return 0;
500 }
501
cx18_s_input(struct file * file,void * fh,unsigned int inp)502 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
503 {
504 struct cx18_open_id *id = fh2id(fh);
505 struct cx18 *cx = id->cx;
506 v4l2_std_id std = V4L2_STD_ALL;
507 const struct cx18_card_video_input *card_input =
508 cx->card->video_inputs + inp;
509
510 if (inp >= cx->nof_inputs)
511 return -EINVAL;
512
513 if (inp == cx->active_input) {
514 CX18_DEBUG_INFO("Input unchanged\n");
515 return 0;
516 }
517
518 CX18_DEBUG_INFO("Changing input from %d to %d\n",
519 cx->active_input, inp);
520
521 cx->active_input = inp;
522 /* Set the audio input to whatever is appropriate for the input type. */
523 cx->audio_input = cx->card->video_inputs[inp].audio_index;
524 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER)
525 std = cx->tuner_std;
526 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std;
527 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std;
528 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std;
529
530 /* prevent others from messing with the streams until
531 we're finished changing inputs. */
532 cx18_mute(cx);
533 cx18_video_set_io(cx);
534 cx18_audio_set_io(cx);
535 cx18_unmute(cx);
536 return 0;
537 }
538
cx18_g_frequency(struct file * file,void * fh,struct v4l2_frequency * vf)539 static int cx18_g_frequency(struct file *file, void *fh,
540 struct v4l2_frequency *vf)
541 {
542 struct cx18 *cx = fh2id(fh)->cx;
543
544 if (vf->tuner != 0)
545 return -EINVAL;
546
547 cx18_call_all(cx, tuner, g_frequency, vf);
548 return 0;
549 }
550
cx18_s_frequency(struct file * file,void * fh,const struct v4l2_frequency * vf)551 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
552 {
553 struct cx18_open_id *id = fh2id(fh);
554 struct cx18 *cx = id->cx;
555
556 if (vf->tuner != 0)
557 return -EINVAL;
558
559 cx18_mute(cx);
560 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
561 cx18_call_all(cx, tuner, s_frequency, vf);
562 cx18_unmute(cx);
563 return 0;
564 }
565
cx18_g_std(struct file * file,void * fh,v4l2_std_id * std)566 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
567 {
568 struct cx18 *cx = fh2id(fh)->cx;
569
570 *std = cx->std;
571 return 0;
572 }
573
cx18_s_std(struct file * file,void * fh,v4l2_std_id std)574 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
575 {
576 struct cx18_open_id *id = fh2id(fh);
577 struct cx18 *cx = id->cx;
578
579 if ((std & V4L2_STD_ALL) == 0)
580 return -EINVAL;
581
582 if (std == cx->std)
583 return 0;
584
585 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
586 atomic_read(&cx->ana_capturing) > 0) {
587 /* Switching standard would turn off the radio or mess
588 with already running streams, prevent that by
589 returning EBUSY. */
590 return -EBUSY;
591 }
592
593 cx->std = std;
594 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
595 cx->is_50hz = !cx->is_60hz;
596 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);
597 cx->cxhdl.width = 720;
598 cx->cxhdl.height = cx->is_50hz ? 576 : 480;
599 cx->vbi.count = cx->is_50hz ? 18 : 12;
600 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
601 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
602 CX18_DEBUG_INFO("Switching standard to %llx.\n",
603 (unsigned long long) cx->std);
604
605 /* Tuner */
606 cx18_call_all(cx, video, s_std, cx->std);
607 return 0;
608 }
609
cx18_s_tuner(struct file * file,void * fh,const struct v4l2_tuner * vt)610 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
611 {
612 struct cx18_open_id *id = fh2id(fh);
613 struct cx18 *cx = id->cx;
614
615 if (vt->index != 0)
616 return -EINVAL;
617
618 cx18_call_all(cx, tuner, s_tuner, vt);
619 return 0;
620 }
621
cx18_g_tuner(struct file * file,void * fh,struct v4l2_tuner * vt)622 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
623 {
624 struct cx18 *cx = fh2id(fh)->cx;
625
626 if (vt->index != 0)
627 return -EINVAL;
628
629 cx18_call_all(cx, tuner, g_tuner, vt);
630
631 if (vt->type == V4L2_TUNER_RADIO)
632 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
633 else
634 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
635 return 0;
636 }
637
cx18_g_sliced_vbi_cap(struct file * file,void * fh,struct v4l2_sliced_vbi_cap * cap)638 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
639 struct v4l2_sliced_vbi_cap *cap)
640 {
641 struct cx18 *cx = fh2id(fh)->cx;
642 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
643 int f, l;
644
645 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
646 return -EINVAL;
647
648 cap->service_set = 0;
649 for (f = 0; f < 2; f++) {
650 for (l = 0; l < 24; l++) {
651 if (valid_service_line(f, l, cx->is_50hz)) {
652 /*
653 * We can find all v4l2 supported vbi services
654 * for the standard, on a valid line for the std
655 */
656 cap->service_lines[f][l] = set;
657 cap->service_set |= set;
658 } else
659 cap->service_lines[f][l] = 0;
660 }
661 }
662 for (f = 0; f < 3; f++)
663 cap->reserved[f] = 0;
664 return 0;
665 }
666
_cx18_process_idx_data(struct cx18_buffer * buf,struct v4l2_enc_idx * idx)667 static int _cx18_process_idx_data(struct cx18_buffer *buf,
668 struct v4l2_enc_idx *idx)
669 {
670 int consumed, remaining;
671 struct v4l2_enc_idx_entry *e_idx;
672 struct cx18_enc_idx_entry *e_buf;
673
674 /* Frame type lookup: 1=I, 2=P, 4=B */
675 static const int mapping[8] = {
676 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
677 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
678 };
679
680 /*
681 * Assumption here is that a buf holds an integral number of
682 * struct cx18_enc_idx_entry objects and is properly aligned.
683 * This is enforced by the module options on IDX buffer sizes.
684 */
685 remaining = buf->bytesused - buf->readpos;
686 consumed = 0;
687 e_idx = &idx->entry[idx->entries];
688 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
689
690 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
691 idx->entries < V4L2_ENC_IDX_ENTRIES) {
692
693 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
694 | le32_to_cpu(e_buf->offset_low);
695
696 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
697 | le32_to_cpu(e_buf->pts_low);
698
699 e_idx->length = le32_to_cpu(e_buf->length);
700
701 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
702
703 e_idx->reserved[0] = 0;
704 e_idx->reserved[1] = 0;
705
706 idx->entries++;
707 e_idx = &idx->entry[idx->entries];
708 e_buf++;
709
710 remaining -= sizeof(struct cx18_enc_idx_entry);
711 consumed += sizeof(struct cx18_enc_idx_entry);
712 }
713
714 /* Swallow any partial entries at the end, if there are any */
715 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
716 consumed += remaining;
717
718 buf->readpos += consumed;
719 return consumed;
720 }
721
cx18_process_idx_data(struct cx18_stream * s,struct cx18_mdl * mdl,struct v4l2_enc_idx * idx)722 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
723 struct v4l2_enc_idx *idx)
724 {
725 if (s->type != CX18_ENC_STREAM_TYPE_IDX)
726 return -EINVAL;
727
728 if (mdl->curr_buf == NULL)
729 mdl->curr_buf = list_first_entry(&mdl->buf_list,
730 struct cx18_buffer, list);
731
732 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
733 /*
734 * For some reason we've exhausted the buffers, but the MDL
735 * object still said some data was unread.
736 * Fix that and bail out.
737 */
738 mdl->readpos = mdl->bytesused;
739 return 0;
740 }
741
742 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
743
744 /* Skip any empty buffers in the MDL */
745 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
746 continue;
747
748 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
749
750 /* exit when MDL drained or request satisfied */
751 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
752 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
753 mdl->readpos >= mdl->bytesused)
754 break;
755 }
756 return 0;
757 }
758
cx18_g_enc_index(struct file * file,void * fh,struct v4l2_enc_idx * idx)759 static int cx18_g_enc_index(struct file *file, void *fh,
760 struct v4l2_enc_idx *idx)
761 {
762 struct cx18 *cx = fh2id(fh)->cx;
763 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
764 s32 tmp;
765 struct cx18_mdl *mdl;
766
767 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
768 return -EINVAL;
769
770 /* Compute the best case number of entries we can buffer */
771 tmp = s->buffers -
772 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
773 if (tmp <= 0)
774 tmp = 1;
775 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
776
777 /* Fill out the header of the return structure */
778 idx->entries = 0;
779 idx->entries_cap = tmp;
780 memset(idx->reserved, 0, sizeof(idx->reserved));
781
782 /* Pull IDX MDLs and buffers from q_full and populate the entries */
783 do {
784 mdl = cx18_dequeue(s, &s->q_full);
785 if (mdl == NULL) /* No more IDX data right now */
786 break;
787
788 /* Extract the Index entry data from the MDL and buffers */
789 cx18_process_idx_data(s, mdl, idx);
790 if (mdl->readpos < mdl->bytesused) {
791 /* We finished with data remaining, push the MDL back */
792 cx18_push(s, mdl, &s->q_full);
793 break;
794 }
795
796 /* We drained this MDL, schedule it to go to the firmware */
797 cx18_enqueue(s, mdl, &s->q_free);
798
799 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
800
801 /* Tell the work handler to send free IDX MDLs to the firmware */
802 cx18_stream_load_fw_queue(s);
803 return 0;
804 }
805
cx18_vb_queue(struct cx18_open_id * id)806 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id)
807 {
808 struct videobuf_queue *q = NULL;
809 struct cx18 *cx = id->cx;
810 struct cx18_stream *s = &cx->streams[id->type];
811
812 switch (s->vb_type) {
813 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
814 q = &s->vbuf_q;
815 break;
816 case V4L2_BUF_TYPE_VBI_CAPTURE:
817 break;
818 default:
819 break;
820 }
821 return q;
822 }
823
cx18_streamon(struct file * file,void * priv,enum v4l2_buf_type type)824 static int cx18_streamon(struct file *file, void *priv,
825 enum v4l2_buf_type type)
826 {
827 struct cx18_open_id *id = file->private_data;
828 struct cx18 *cx = id->cx;
829 struct cx18_stream *s = &cx->streams[id->type];
830
831 /* Start the hardware only if we're the video device */
832 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
833 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
834 return -EINVAL;
835
836 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
837 return -EINVAL;
838
839 /* Establish a buffer timeout */
840 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies);
841
842 return videobuf_streamon(cx18_vb_queue(id));
843 }
844
cx18_streamoff(struct file * file,void * priv,enum v4l2_buf_type type)845 static int cx18_streamoff(struct file *file, void *priv,
846 enum v4l2_buf_type type)
847 {
848 struct cx18_open_id *id = file->private_data;
849 struct cx18 *cx = id->cx;
850 struct cx18_stream *s = &cx->streams[id->type];
851
852 /* Start the hardware only if we're the video device */
853 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
854 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
855 return -EINVAL;
856
857 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
858 return -EINVAL;
859
860 return videobuf_streamoff(cx18_vb_queue(id));
861 }
862
cx18_reqbufs(struct file * file,void * priv,struct v4l2_requestbuffers * rb)863 static int cx18_reqbufs(struct file *file, void *priv,
864 struct v4l2_requestbuffers *rb)
865 {
866 struct cx18_open_id *id = file->private_data;
867 struct cx18 *cx = id->cx;
868 struct cx18_stream *s = &cx->streams[id->type];
869
870 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
871 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
872 return -EINVAL;
873
874 return videobuf_reqbufs(cx18_vb_queue(id), rb);
875 }
876
cx18_querybuf(struct file * file,void * priv,struct v4l2_buffer * b)877 static int cx18_querybuf(struct file *file, void *priv,
878 struct v4l2_buffer *b)
879 {
880 struct cx18_open_id *id = file->private_data;
881 struct cx18 *cx = id->cx;
882 struct cx18_stream *s = &cx->streams[id->type];
883
884 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
885 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
886 return -EINVAL;
887
888 return videobuf_querybuf(cx18_vb_queue(id), b);
889 }
890
cx18_qbuf(struct file * file,void * priv,struct v4l2_buffer * b)891 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
892 {
893 struct cx18_open_id *id = file->private_data;
894 struct cx18 *cx = id->cx;
895 struct cx18_stream *s = &cx->streams[id->type];
896
897 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
898 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
899 return -EINVAL;
900
901 return videobuf_qbuf(cx18_vb_queue(id), b);
902 }
903
cx18_dqbuf(struct file * file,void * priv,struct v4l2_buffer * b)904 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
905 {
906 struct cx18_open_id *id = file->private_data;
907 struct cx18 *cx = id->cx;
908 struct cx18_stream *s = &cx->streams[id->type];
909
910 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
911 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
912 return -EINVAL;
913
914 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK);
915 }
916
cx18_encoder_cmd(struct file * file,void * fh,struct v4l2_encoder_cmd * enc)917 static int cx18_encoder_cmd(struct file *file, void *fh,
918 struct v4l2_encoder_cmd *enc)
919 {
920 struct cx18_open_id *id = fh2id(fh);
921 struct cx18 *cx = id->cx;
922 u32 h;
923
924 switch (enc->cmd) {
925 case V4L2_ENC_CMD_START:
926 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
927 enc->flags = 0;
928 return cx18_start_capture(id);
929
930 case V4L2_ENC_CMD_STOP:
931 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
932 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
933 cx18_stop_capture(id,
934 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
935 break;
936
937 case V4L2_ENC_CMD_PAUSE:
938 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
939 enc->flags = 0;
940 if (!atomic_read(&cx->ana_capturing))
941 return -EPERM;
942 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
943 return 0;
944 h = cx18_find_handle(cx);
945 if (h == CX18_INVALID_TASK_HANDLE) {
946 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n");
947 return -EBADFD;
948 }
949 cx18_mute(cx);
950 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
951 break;
952
953 case V4L2_ENC_CMD_RESUME:
954 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
955 enc->flags = 0;
956 if (!atomic_read(&cx->ana_capturing))
957 return -EPERM;
958 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
959 return 0;
960 h = cx18_find_handle(cx);
961 if (h == CX18_INVALID_TASK_HANDLE) {
962 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n");
963 return -EBADFD;
964 }
965 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
966 cx18_unmute(cx);
967 break;
968
969 default:
970 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
971 return -EINVAL;
972 }
973 return 0;
974 }
975
cx18_try_encoder_cmd(struct file * file,void * fh,struct v4l2_encoder_cmd * enc)976 static int cx18_try_encoder_cmd(struct file *file, void *fh,
977 struct v4l2_encoder_cmd *enc)
978 {
979 struct cx18 *cx = fh2id(fh)->cx;
980
981 switch (enc->cmd) {
982 case V4L2_ENC_CMD_START:
983 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
984 enc->flags = 0;
985 break;
986
987 case V4L2_ENC_CMD_STOP:
988 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
989 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
990 break;
991
992 case V4L2_ENC_CMD_PAUSE:
993 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
994 enc->flags = 0;
995 break;
996
997 case V4L2_ENC_CMD_RESUME:
998 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
999 enc->flags = 0;
1000 break;
1001
1002 default:
1003 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1004 return -EINVAL;
1005 }
1006 return 0;
1007 }
1008
cx18_log_status(struct file * file,void * fh)1009 static int cx18_log_status(struct file *file, void *fh)
1010 {
1011 struct cx18 *cx = fh2id(fh)->cx;
1012 struct v4l2_input vidin;
1013 struct v4l2_audio audin;
1014 int i;
1015
1016 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
1017 if (cx->hw_flags & CX18_HW_TVEEPROM) {
1018 struct tveeprom tv;
1019
1020 cx18_read_eeprom(cx, &tv);
1021 }
1022 cx18_call_all(cx, core, log_status);
1023 cx18_get_input(cx, cx->active_input, &vidin);
1024 cx18_get_audio_input(cx, cx->audio_input, &audin);
1025 CX18_INFO("Video Input: %s\n", vidin.name);
1026 CX18_INFO("Audio Input: %s\n", audin.name);
1027 mutex_lock(&cx->gpio_lock);
1028 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
1029 cx->gpio_dir, cx->gpio_val);
1030 mutex_unlock(&cx->gpio_lock);
1031 CX18_INFO("Tuner: %s\n",
1032 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
1033 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);
1034 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
1035 for (i = 0; i < CX18_MAX_STREAMS; i++) {
1036 struct cx18_stream *s = &cx->streams[i];
1037
1038 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0)
1039 continue;
1040 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
1041 s->name, s->s_flags,
1042 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
1043 / s->buffers,
1044 (s->buffers * s->buf_size) / 1024, s->buffers);
1045 }
1046 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
1047 (long long)cx->mpg_data_received,
1048 (long long)cx->vbi_data_inserted);
1049 return 0;
1050 }
1051
cx18_default(struct file * file,void * fh,bool valid_prio,unsigned int cmd,void * arg)1052 static long cx18_default(struct file *file, void *fh, bool valid_prio,
1053 unsigned int cmd, void *arg)
1054 {
1055 struct cx18 *cx = fh2id(fh)->cx;
1056
1057 switch (cmd) {
1058 case VIDIOC_INT_RESET: {
1059 u32 val = *(u32 *)arg;
1060
1061 if ((val == 0) || (val & 0x01))
1062 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,
1063 (u32) CX18_GPIO_RESET_Z8F0811);
1064 break;
1065 }
1066
1067 default:
1068 return -ENOTTY;
1069 }
1070 return 0;
1071 }
1072
1073 static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
1074 .vidioc_querycap = cx18_querycap,
1075 .vidioc_s_audio = cx18_s_audio,
1076 .vidioc_g_audio = cx18_g_audio,
1077 .vidioc_enumaudio = cx18_enumaudio,
1078 .vidioc_enum_input = cx18_enum_input,
1079 .vidioc_g_pixelaspect = cx18_g_pixelaspect,
1080 .vidioc_g_selection = cx18_g_selection,
1081 .vidioc_g_input = cx18_g_input,
1082 .vidioc_s_input = cx18_s_input,
1083 .vidioc_g_frequency = cx18_g_frequency,
1084 .vidioc_s_frequency = cx18_s_frequency,
1085 .vidioc_s_tuner = cx18_s_tuner,
1086 .vidioc_g_tuner = cx18_g_tuner,
1087 .vidioc_g_enc_index = cx18_g_enc_index,
1088 .vidioc_g_std = cx18_g_std,
1089 .vidioc_s_std = cx18_s_std,
1090 .vidioc_log_status = cx18_log_status,
1091 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,
1092 .vidioc_encoder_cmd = cx18_encoder_cmd,
1093 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd,
1094 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,
1095 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,
1096 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,
1097 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,
1098 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,
1099 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,
1100 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,
1101 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,
1102 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,
1103 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,
1104 #ifdef CONFIG_VIDEO_ADV_DEBUG
1105 .vidioc_g_register = cx18_g_register,
1106 .vidioc_s_register = cx18_s_register,
1107 #endif
1108 .vidioc_default = cx18_default,
1109 .vidioc_streamon = cx18_streamon,
1110 .vidioc_streamoff = cx18_streamoff,
1111 .vidioc_reqbufs = cx18_reqbufs,
1112 .vidioc_querybuf = cx18_querybuf,
1113 .vidioc_qbuf = cx18_qbuf,
1114 .vidioc_dqbuf = cx18_dqbuf,
1115 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1116 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1117 };
1118
cx18_set_funcs(struct video_device * vdev)1119 void cx18_set_funcs(struct video_device *vdev)
1120 {
1121 vdev->ioctl_ops = &cx18_ioctl_ops;
1122 }
1123