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Merge branch 'for-linus' of git://git.infradead.org/users/sameo/mfd-2.6
[linux-btrfs-devel.git] / drivers / media / video / cx18 / cx18-ioctl.c
blobafe0a29e7200b9cdbb21447f7f0d7a5256ed0c8f
1 /*
2 * cx18 ioctl system call
3 *
4 * Derived from ivtv-ioctl.c
5 *
6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
7 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
22 * 02111-1307 USA
23 */
24
25 #include "cx18-driver.h"
26 #include "cx18-io.h"
27 #include "cx18-version.h"
28 #include "cx18-mailbox.h"
29 #include "cx18-i2c.h"
30 #include "cx18-queue.h"
31 #include "cx18-fileops.h"
32 #include "cx18-vbi.h"
33 #include "cx18-audio.h"
34 #include "cx18-video.h"
35 #include "cx18-streams.h"
36 #include "cx18-ioctl.h"
37 #include "cx18-gpio.h"
38 #include "cx18-controls.h"
39 #include "cx18-cards.h"
40 #include "cx18-av-core.h"
41 #include <media/tveeprom.h>
42 #include <media/v4l2-chip-ident.h>
43
44 u16 cx18_service2vbi(int type)
45 {
46 switch (type) {
47 case V4L2_SLICED_TELETEXT_B:
48 return CX18_SLICED_TYPE_TELETEXT_B;
49 case V4L2_SLICED_CAPTION_525:
50 return CX18_SLICED_TYPE_CAPTION_525;
51 case V4L2_SLICED_WSS_625:
52 return CX18_SLICED_TYPE_WSS_625;
53 case V4L2_SLICED_VPS:
54 return CX18_SLICED_TYPE_VPS;
55 default:
56 return 0;
57 }
58 }
59
60 /* Check if VBI services are allowed on the (field, line) for the video std */
61 static int valid_service_line(int field, int line, int is_pal)
62 {
63 return (is_pal && line >= 6 &&
64 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||
65 (!is_pal && line >= 10 && line < 22);
66 }
67
68 /*
69 * For a (field, line, std) and inbound potential set of services for that line,
70 * return the first valid service of those passed in the incoming set for that
71 * line in priority order:
72 * CC, VPS, or WSS over TELETEXT for well known lines
73 * TELETEXT, before VPS, before CC, before WSS, for other lines
74 */
75 static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
76 {
77 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
78 int i;
79
80 set = set & valid_set;
81 if (set == 0 || !valid_service_line(field, line, is_pal))
82 return 0;
83 if (!is_pal) {
84 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
85 return V4L2_SLICED_CAPTION_525;
86 } else {
87 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
88 return V4L2_SLICED_VPS;
89 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
90 return V4L2_SLICED_WSS_625;
91 if (line == 23)
92 return 0;
93 }
94 for (i = 0; i < 32; i++) {
95 if ((1 << i) & set)
96 return 1 << i;
97 }
98 return 0;
99 }
100
101 /*
102 * Expand the service_set of *fmt into valid service_lines for the std,
103 * and clear the passed in fmt->service_set
104 */
105 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
106 {
107 u16 set = fmt->service_set;
108 int f, l;
109
110 fmt->service_set = 0;
111 for (f = 0; f < 2; f++) {
112 for (l = 0; l < 24; l++)
113 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
114 }
115 }
116
117 /*
118 * Sanitize the service_lines in *fmt per the video std, and return 1
119 * if any service_line is left as valid after santization
120 */
121 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
122 {
123 int f, l;
124 u16 set = 0;
125
126 for (f = 0; f < 2; f++) {
127 for (l = 0; l < 24; l++) {
128 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
129 set |= fmt->service_lines[f][l];
130 }
131 }
132 return set != 0;
133 }
134
135 /* Compute the service_set from the assumed valid service_lines of *fmt */
136 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
137 {
138 int f, l;
139 u16 set = 0;
140
141 for (f = 0; f < 2; f++) {
142 for (l = 0; l < 24; l++)
143 set |= fmt->service_lines[f][l];
144 }
145 return set;
146 }
147
148 static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
149 struct v4l2_format *fmt)
150 {
151 struct cx18_open_id *id = fh2id(fh);
152 struct cx18 *cx = id->cx;
153 struct cx18_stream *s = &cx->streams[id->type];
154 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
155
156 pixfmt->width = cx->cxhdl.width;
157 pixfmt->height = cx->cxhdl.height;
158 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
159 pixfmt->field = V4L2_FIELD_INTERLACED;
160 pixfmt->priv = 0;
161 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
162 pixfmt->pixelformat = s->pixelformat;
163 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
164 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
165 if (s->pixelformat == V4L2_PIX_FMT_HM12)
166 pixfmt->sizeimage = pixfmt->height * 720 * 3 / 2;
167 else
168 pixfmt->sizeimage = pixfmt->height * 720 * 2;
169 pixfmt->bytesperline = 720;
170 } else {
171 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
172 pixfmt->sizeimage = 128 * 1024;
173 pixfmt->bytesperline = 0;
174 }
175 return 0;
176 }
177
178 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
179 struct v4l2_format *fmt)
180 {
181 struct cx18 *cx = fh2id(fh)->cx;
182 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
183
184 vbifmt->sampling_rate = 27000000;
185 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */
186 vbifmt->samples_per_line = vbi_active_samples - 4;
187 vbifmt->sample_format = V4L2_PIX_FMT_GREY;
188 vbifmt->start[0] = cx->vbi.start[0];
189 vbifmt->start[1] = cx->vbi.start[1];
190 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;
191 vbifmt->flags = 0;
192 vbifmt->reserved[0] = 0;
193 vbifmt->reserved[1] = 0;
194 return 0;
195 }
196
197 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
198 struct v4l2_format *fmt)
199 {
200 struct cx18 *cx = fh2id(fh)->cx;
201 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
202
203 /* sane, V4L2 spec compliant, defaults */
204 vbifmt->reserved[0] = 0;
205 vbifmt->reserved[1] = 0;
206 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
207 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
208 vbifmt->service_set = 0;
209
210 /*
211 * Fetch the configured service_lines and total service_set from the
212 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in
213 * fmt->fmt.sliced under valid calling conditions
214 */
215 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
216 return -EINVAL;
217
218 /* Ensure V4L2 spec compliant output */
219 vbifmt->reserved[0] = 0;
220 vbifmt->reserved[1] = 0;
221 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
222 vbifmt->service_set = cx18_get_service_set(vbifmt);
223 return 0;
224 }
225
226 static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
227 struct v4l2_format *fmt)
228 {
229 struct cx18_open_id *id = fh2id(fh);
230 struct cx18 *cx = id->cx;
231 int w = fmt->fmt.pix.width;
232 int h = fmt->fmt.pix.height;
233 int min_h = 2;
234
235 w = min(w, 720);
236 w = max(w, 2);
237 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
238 /* YUV height must be a multiple of 32 */
239 h &= ~0x1f;
240 min_h = 32;
241 }
242 h = min(h, cx->is_50hz ? 576 : 480);
243 h = max(h, min_h);
244
245 fmt->fmt.pix.width = w;
246 fmt->fmt.pix.height = h;
247 return 0;
248 }
249
250 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
251 struct v4l2_format *fmt)
252 {
253 return cx18_g_fmt_vbi_cap(file, fh, fmt);
254 }
255
256 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
257 struct v4l2_format *fmt)
258 {
259 struct cx18 *cx = fh2id(fh)->cx;
260 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
261
262 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
263 vbifmt->reserved[0] = 0;
264 vbifmt->reserved[1] = 0;
265
266 /* If given a service set, expand it validly & clear passed in set */
267 if (vbifmt->service_set)
268 cx18_expand_service_set(vbifmt, cx->is_50hz);
269 /* Sanitize the service_lines, and compute the new set if any valid */
270 if (check_service_set(vbifmt, cx->is_50hz))
271 vbifmt->service_set = cx18_get_service_set(vbifmt);
272 return 0;
273 }
274
275 static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
276 struct v4l2_format *fmt)
277 {
278 struct cx18_open_id *id = fh2id(fh);
279 struct cx18 *cx = id->cx;
280 struct v4l2_mbus_framefmt mbus_fmt;
281 struct cx18_stream *s = &cx->streams[id->type];
282 int ret;
283 int w, h;
284
285 ret = cx18_try_fmt_vid_cap(file, fh, fmt);
286 if (ret)
287 return ret;
288 w = fmt->fmt.pix.width;
289 h = fmt->fmt.pix.height;
290
291 if (cx->cxhdl.width == w && cx->cxhdl.height == h &&
292 s->pixelformat == fmt->fmt.pix.pixelformat)
293 return 0;
294
295 if (atomic_read(&cx->ana_capturing) > 0)
296 return -EBUSY;
297
298 s->pixelformat = fmt->fmt.pix.pixelformat;
299
300 mbus_fmt.width = cx->cxhdl.width = w;
301 mbus_fmt.height = cx->cxhdl.height = h;
302 mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
303 v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt);
304 return cx18_g_fmt_vid_cap(file, fh, fmt);
305 }
306
307 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
308 struct v4l2_format *fmt)
309 {
310 struct cx18_open_id *id = fh2id(fh);
311 struct cx18 *cx = id->cx;
312 int ret;
313
314 /*
315 * Changing the Encoder's Raw VBI parameters won't have any effect
316 * if any analog capture is ongoing
317 */
318 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
319 return -EBUSY;
320
321 /*
322 * Set the digitizer registers for raw active VBI.
323 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
324 * calling conditions
325 */
326 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
327 if (ret)
328 return ret;
329
330 /* Store our new v4l2 (non-)sliced VBI state */
331 cx->vbi.sliced_in->service_set = 0;
332 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
333
334 return cx18_g_fmt_vbi_cap(file, fh, fmt);
335 }
336
337 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
338 struct v4l2_format *fmt)
339 {
340 struct cx18_open_id *id = fh2id(fh);
341 struct cx18 *cx = id->cx;
342 int ret;
343 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
344
345 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
346
347 /*
348 * Changing the Encoder's Raw VBI parameters won't have any effect
349 * if any analog capture is ongoing
350 */
351 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
352 return -EBUSY;
353
354 /*
355 * Set the service_lines requested in the digitizer/slicer registers.
356 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
357 * passed in fmt->fmt.sliced under valid calling conditions
358 */
359 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
360 if (ret)
361 return ret;
362 /* Store our current v4l2 sliced VBI settings */
363 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
364 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
365 return 0;
366 }
367
368 static int cx18_g_chip_ident(struct file *file, void *fh,
369 struct v4l2_dbg_chip_ident *chip)
370 {
371 struct cx18 *cx = fh2id(fh)->cx;
372 int err = 0;
373
374 chip->ident = V4L2_IDENT_NONE;
375 chip->revision = 0;
376 switch (chip->match.type) {
377 case V4L2_CHIP_MATCH_HOST:
378 switch (chip->match.addr) {
379 case 0:
380 chip->ident = V4L2_IDENT_CX23418;
381 chip->revision = cx18_read_reg(cx, 0xC72028);
382 break;
383 case 1:
384 /*
385 * The A/V decoder is always present, but in the rare
386 * case that the card doesn't have analog, we don't
387 * use it. We find it w/o using the cx->sd_av pointer
388 */
389 cx18_call_hw(cx, CX18_HW_418_AV,
390 core, g_chip_ident, chip);
391 break;
392 default:
393 /*
394 * Could return ident = V4L2_IDENT_UNKNOWN if we had
395 * other host chips at higher addresses, but we don't
396 */
397 err = -EINVAL; /* per V4L2 spec */
398 break;
399 }
400 break;
401 case V4L2_CHIP_MATCH_I2C_DRIVER:
402 /* If needed, returns V4L2_IDENT_AMBIGUOUS without extra work */
403 cx18_call_all(cx, core, g_chip_ident, chip);
404 break;
405 case V4L2_CHIP_MATCH_I2C_ADDR:
406 /*
407 * We could return V4L2_IDENT_UNKNOWN, but we don't do the work
408 * to look if a chip is at the address with no driver. That's a
409 * dangerous thing to do with EEPROMs anyway.
410 */
411 cx18_call_all(cx, core, g_chip_ident, chip);
412 break;
413 default:
414 err = -EINVAL;
415 break;
416 }
417 return err;
418 }
419
420 #ifdef CONFIG_VIDEO_ADV_DEBUG
421 static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg)
422 {
423 struct v4l2_dbg_register *regs = arg;
424
425 if (!capable(CAP_SYS_ADMIN))
426 return -EPERM;
427 if (regs->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
428 return -EINVAL;
429
430 regs->size = 4;
431 if (cmd == VIDIOC_DBG_S_REGISTER)
432 cx18_write_enc(cx, regs->val, regs->reg);
433 else
434 regs->val = cx18_read_enc(cx, regs->reg);
435 return 0;
436 }
437
438 static int cx18_g_register(struct file *file, void *fh,
439 struct v4l2_dbg_register *reg)
440 {
441 struct cx18 *cx = fh2id(fh)->cx;
442
443 if (v4l2_chip_match_host(&reg->match))
444 return cx18_cxc(cx, VIDIOC_DBG_G_REGISTER, reg);
445 /* FIXME - errors shouldn't be ignored */
446 cx18_call_all(cx, core, g_register, reg);
447 return 0;
448 }
449
450 static int cx18_s_register(struct file *file, void *fh,
451 struct v4l2_dbg_register *reg)
452 {
453 struct cx18 *cx = fh2id(fh)->cx;
454
455 if (v4l2_chip_match_host(&reg->match))
456 return cx18_cxc(cx, VIDIOC_DBG_S_REGISTER, reg);
457 /* FIXME - errors shouldn't be ignored */
458 cx18_call_all(cx, core, s_register, reg);
459 return 0;
460 }
461 #endif
462
463 static int cx18_querycap(struct file *file, void *fh,
464 struct v4l2_capability *vcap)
465 {
466 struct cx18 *cx = fh2id(fh)->cx;
467
468 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
469 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
470 snprintf(vcap->bus_info, sizeof(vcap->bus_info),
471 "PCI:%s", pci_name(cx->pci_dev));
472 vcap->capabilities = cx->v4l2_cap; /* capabilities */
473 return 0;
474 }
475
476 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
477 {
478 struct cx18 *cx = fh2id(fh)->cx;
479
480 return cx18_get_audio_input(cx, vin->index, vin);
481 }
482
483 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
484 {
485 struct cx18 *cx = fh2id(fh)->cx;
486
487 vin->index = cx->audio_input;
488 return cx18_get_audio_input(cx, vin->index, vin);
489 }
490
491 static int cx18_s_audio(struct file *file, void *fh, struct v4l2_audio *vout)
492 {
493 struct cx18 *cx = fh2id(fh)->cx;
494
495 if (vout->index >= cx->nof_audio_inputs)
496 return -EINVAL;
497 cx->audio_input = vout->index;
498 cx18_audio_set_io(cx);
499 return 0;
500 }
501
502 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
503 {
504 struct cx18 *cx = fh2id(fh)->cx;
505
506 /* set it to defaults from our table */
507 return cx18_get_input(cx, vin->index, vin);
508 }
509
510 static int cx18_cropcap(struct file *file, void *fh,
511 struct v4l2_cropcap *cropcap)
512 {
513 struct cx18 *cx = fh2id(fh)->cx;
514
515 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
516 return -EINVAL;
517 cropcap->bounds.top = cropcap->bounds.left = 0;
518 cropcap->bounds.width = 720;
519 cropcap->bounds.height = cx->is_50hz ? 576 : 480;
520 cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
521 cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
522 cropcap->defrect = cropcap->bounds;
523 return 0;
524 }
525
526 static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
527 {
528 struct cx18_open_id *id = fh2id(fh);
529 struct cx18 *cx = id->cx;
530
531 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
532 return -EINVAL;
533 CX18_DEBUG_WARN("VIDIOC_S_CROP not implemented\n");
534 return -EINVAL;
535 }
536
537 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
538 {
539 struct cx18 *cx = fh2id(fh)->cx;
540
541 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
542 return -EINVAL;
543 CX18_DEBUG_WARN("VIDIOC_G_CROP not implemented\n");
544 return -EINVAL;
545 }
546
547 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
548 struct v4l2_fmtdesc *fmt)
549 {
550 static const struct v4l2_fmtdesc formats[] = {
551 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
552 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 }
553 },
554 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED,
555 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 }
556 },
557 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
558 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 }
559 },
560 };
561
562 if (fmt->index > ARRAY_SIZE(formats) - 1)
563 return -EINVAL;
564 *fmt = formats[fmt->index];
565 return 0;
566 }
567
568 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
569 {
570 struct cx18 *cx = fh2id(fh)->cx;
571
572 *i = cx->active_input;
573 return 0;
574 }
575
576 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
577 {
578 struct cx18_open_id *id = fh2id(fh);
579 struct cx18 *cx = id->cx;
580
581 if (inp >= cx->nof_inputs)
582 return -EINVAL;
583
584 if (inp == cx->active_input) {
585 CX18_DEBUG_INFO("Input unchanged\n");
586 return 0;
587 }
588
589 CX18_DEBUG_INFO("Changing input from %d to %d\n",
590 cx->active_input, inp);
591
592 cx->active_input = inp;
593 /* Set the audio input to whatever is appropriate for the input type. */
594 cx->audio_input = cx->card->video_inputs[inp].audio_index;
595
596 /* prevent others from messing with the streams until
597 we're finished changing inputs. */
598 cx18_mute(cx);
599 cx18_video_set_io(cx);
600 cx18_audio_set_io(cx);
601 cx18_unmute(cx);
602 return 0;
603 }
604
605 static int cx18_g_frequency(struct file *file, void *fh,
606 struct v4l2_frequency *vf)
607 {
608 struct cx18 *cx = fh2id(fh)->cx;
609
610 if (vf->tuner != 0)
611 return -EINVAL;
612
613 cx18_call_all(cx, tuner, g_frequency, vf);
614 return 0;
615 }
616
617 int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
618 {
619 struct cx18_open_id *id = fh2id(fh);
620 struct cx18 *cx = id->cx;
621
622 if (vf->tuner != 0)
623 return -EINVAL;
624
625 cx18_mute(cx);
626 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
627 cx18_call_all(cx, tuner, s_frequency, vf);
628 cx18_unmute(cx);
629 return 0;
630 }
631
632 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
633 {
634 struct cx18 *cx = fh2id(fh)->cx;
635
636 *std = cx->std;
637 return 0;
638 }
639
640 int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std)
641 {
642 struct cx18_open_id *id = fh2id(fh);
643 struct cx18 *cx = id->cx;
644
645 if ((*std & V4L2_STD_ALL) == 0)
646 return -EINVAL;
647
648 if (*std == cx->std)
649 return 0;
650
651 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
652 atomic_read(&cx->ana_capturing) > 0) {
653 /* Switching standard would turn off the radio or mess
654 with already running streams, prevent that by
655 returning EBUSY. */
656 return -EBUSY;
657 }
658
659 cx->std = *std;
660 cx->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
661 cx->is_50hz = !cx->is_60hz;
662 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);
663 cx->cxhdl.width = 720;
664 cx->cxhdl.height = cx->is_50hz ? 576 : 480;
665 cx->vbi.count = cx->is_50hz ? 18 : 12;
666 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
667 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
668 CX18_DEBUG_INFO("Switching standard to %llx.\n",
669 (unsigned long long) cx->std);
670
671 /* Tuner */
672 cx18_call_all(cx, core, s_std, cx->std);
673 return 0;
674 }
675
676 static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
677 {
678 struct cx18_open_id *id = fh2id(fh);
679 struct cx18 *cx = id->cx;
680
681 if (vt->index != 0)
682 return -EINVAL;
683
684 cx18_call_all(cx, tuner, s_tuner, vt);
685 return 0;
686 }
687
688 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
689 {
690 struct cx18 *cx = fh2id(fh)->cx;
691
692 if (vt->index != 0)
693 return -EINVAL;
694
695 cx18_call_all(cx, tuner, g_tuner, vt);
696
697 if (vt->type == V4L2_TUNER_RADIO)
698 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
699 else
700 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
701 return 0;
702 }
703
704 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
705 struct v4l2_sliced_vbi_cap *cap)
706 {
707 struct cx18 *cx = fh2id(fh)->cx;
708 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
709 int f, l;
710
711 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
712 return -EINVAL;
713
714 cap->service_set = 0;
715 for (f = 0; f < 2; f++) {
716 for (l = 0; l < 24; l++) {
717 if (valid_service_line(f, l, cx->is_50hz)) {
718 /*
719 * We can find all v4l2 supported vbi services
720 * for the standard, on a valid line for the std
721 */
722 cap->service_lines[f][l] = set;
723 cap->service_set |= set;
724 } else
725 cap->service_lines[f][l] = 0;
726 }
727 }
728 for (f = 0; f < 3; f++)
729 cap->reserved[f] = 0;
730 return 0;
731 }
732
733 static int _cx18_process_idx_data(struct cx18_buffer *buf,
734 struct v4l2_enc_idx *idx)
735 {
736 int consumed, remaining;
737 struct v4l2_enc_idx_entry *e_idx;
738 struct cx18_enc_idx_entry *e_buf;
739
740 /* Frame type lookup: 1=I, 2=P, 4=B */
741 const int mapping[8] = {
742 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
743 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
744 };
745
746 /*
747 * Assumption here is that a buf holds an integral number of
748 * struct cx18_enc_idx_entry objects and is properly aligned.
749 * This is enforced by the module options on IDX buffer sizes.
750 */
751 remaining = buf->bytesused - buf->readpos;
752 consumed = 0;
753 e_idx = &idx->entry[idx->entries];
754 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
755
756 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
757 idx->entries < V4L2_ENC_IDX_ENTRIES) {
758
759 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
760 | le32_to_cpu(e_buf->offset_low);
761
762 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
763 | le32_to_cpu(e_buf->pts_low);
764
765 e_idx->length = le32_to_cpu(e_buf->length);
766
767 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
768
769 e_idx->reserved[0] = 0;
770 e_idx->reserved[1] = 0;
771
772 idx->entries++;
773 e_idx = &idx->entry[idx->entries];
774 e_buf++;
775
776 remaining -= sizeof(struct cx18_enc_idx_entry);
777 consumed += sizeof(struct cx18_enc_idx_entry);
778 }
779
780 /* Swallow any partial entries at the end, if there are any */
781 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
782 consumed += remaining;
783
784 buf->readpos += consumed;
785 return consumed;
786 }
787
788 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
789 struct v4l2_enc_idx *idx)
790 {
791 if (s->type != CX18_ENC_STREAM_TYPE_IDX)
792 return -EINVAL;
793
794 if (mdl->curr_buf == NULL)
795 mdl->curr_buf = list_first_entry(&mdl->buf_list,
796 struct cx18_buffer, list);
797
798 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
799 /*
800 * For some reason we've exhausted the buffers, but the MDL
801 * object still said some data was unread.
802 * Fix that and bail out.
803 */
804 mdl->readpos = mdl->bytesused;
805 return 0;
806 }
807
808 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
809
810 /* Skip any empty buffers in the MDL */
811 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
812 continue;
813
814 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
815
816 /* exit when MDL drained or request satisfied */
817 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
818 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
819 mdl->readpos >= mdl->bytesused)
820 break;
821 }
822 return 0;
823 }
824
825 static int cx18_g_enc_index(struct file *file, void *fh,
826 struct v4l2_enc_idx *idx)
827 {
828 struct cx18 *cx = fh2id(fh)->cx;
829 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
830 s32 tmp;
831 struct cx18_mdl *mdl;
832
833 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
834 return -EINVAL;
835
836 /* Compute the best case number of entries we can buffer */
837 tmp = s->buffers -
838 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
839 if (tmp <= 0)
840 tmp = 1;
841 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
842
843 /* Fill out the header of the return structure */
844 idx->entries = 0;
845 idx->entries_cap = tmp;
846 memset(idx->reserved, 0, sizeof(idx->reserved));
847
848 /* Pull IDX MDLs and buffers from q_full and populate the entries */
849 do {
850 mdl = cx18_dequeue(s, &s->q_full);
851 if (mdl == NULL) /* No more IDX data right now */
852 break;
853
854 /* Extract the Index entry data from the MDL and buffers */
855 cx18_process_idx_data(s, mdl, idx);
856 if (mdl->readpos < mdl->bytesused) {
857 /* We finished with data remaining, push the MDL back */
858 cx18_push(s, mdl, &s->q_full);
859 break;
860 }
861
862 /* We drained this MDL, schedule it to go to the firmware */
863 cx18_enqueue(s, mdl, &s->q_free);
864
865 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
866
867 /* Tell the work handler to send free IDX MDLs to the firmware */
868 cx18_stream_load_fw_queue(s);
869 return 0;
870 }
871
872 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id)
873 {
874 struct videobuf_queue *q = NULL;
875 struct cx18 *cx = id->cx;
876 struct cx18_stream *s = &cx->streams[id->type];
877
878 switch (s->vb_type) {
879 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
880 q = &s->vbuf_q;
881 break;
882 case V4L2_BUF_TYPE_VBI_CAPTURE:
883 break;
884 default:
885 break;
886 }
887 return q;
888 }
889
890 static int cx18_streamon(struct file *file, void *priv,
891 enum v4l2_buf_type type)
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 /* Start the hardware only if we're the video device */
898 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
899 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
900 return -EINVAL;
901
902 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
903 return -EINVAL;
904
905 /* Establish a buffer timeout */
906 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies);
907
908 return videobuf_streamon(cx18_vb_queue(id));
909 }
910
911 static int cx18_streamoff(struct file *file, void *priv,
912 enum v4l2_buf_type type)
913 {
914 struct cx18_open_id *id = file->private_data;
915 struct cx18 *cx = id->cx;
916 struct cx18_stream *s = &cx->streams[id->type];
917
918 /* Start the hardware only if we're the video device */
919 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
920 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
921 return -EINVAL;
922
923 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
924 return -EINVAL;
925
926 return videobuf_streamoff(cx18_vb_queue(id));
927 }
928
929 static int cx18_reqbufs(struct file *file, void *priv,
930 struct v4l2_requestbuffers *rb)
931 {
932 struct cx18_open_id *id = file->private_data;
933 struct cx18 *cx = id->cx;
934 struct cx18_stream *s = &cx->streams[id->type];
935
936 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
937 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
938 return -EINVAL;
939
940 return videobuf_reqbufs(cx18_vb_queue(id), rb);
941 }
942
943 static int cx18_querybuf(struct file *file, void *priv,
944 struct v4l2_buffer *b)
945 {
946 struct cx18_open_id *id = file->private_data;
947 struct cx18 *cx = id->cx;
948 struct cx18_stream *s = &cx->streams[id->type];
949
950 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
951 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
952 return -EINVAL;
953
954 return videobuf_querybuf(cx18_vb_queue(id), b);
955 }
956
957 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
958 {
959 struct cx18_open_id *id = file->private_data;
960 struct cx18 *cx = id->cx;
961 struct cx18_stream *s = &cx->streams[id->type];
962
963 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
964 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
965 return -EINVAL;
966
967 return videobuf_qbuf(cx18_vb_queue(id), b);
968 }
969
970 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
971 {
972 struct cx18_open_id *id = file->private_data;
973 struct cx18 *cx = id->cx;
974 struct cx18_stream *s = &cx->streams[id->type];
975
976 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
977 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
978 return -EINVAL;
979
980 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK);
981 }
982
983 static int cx18_encoder_cmd(struct file *file, void *fh,
984 struct v4l2_encoder_cmd *enc)
985 {
986 struct cx18_open_id *id = fh2id(fh);
987 struct cx18 *cx = id->cx;
988 u32 h;
989
990 switch (enc->cmd) {
991 case V4L2_ENC_CMD_START:
992 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
993 enc->flags = 0;
994 return cx18_start_capture(id);
995
996 case V4L2_ENC_CMD_STOP:
997 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
998 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
999 cx18_stop_capture(id,
1000 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
1001 break;
1002
1003 case V4L2_ENC_CMD_PAUSE:
1004 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
1005 enc->flags = 0;
1006 if (!atomic_read(&cx->ana_capturing))
1007 return -EPERM;
1008 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
1009 return 0;
1010 h = cx18_find_handle(cx);
1011 if (h == CX18_INVALID_TASK_HANDLE) {
1012 CX18_ERR("Can't find valid task handle for "
1013 "V4L2_ENC_CMD_PAUSE\n");
1014 return -EBADFD;
1015 }
1016 cx18_mute(cx);
1017 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
1018 break;
1019
1020 case V4L2_ENC_CMD_RESUME:
1021 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
1022 enc->flags = 0;
1023 if (!atomic_read(&cx->ana_capturing))
1024 return -EPERM;
1025 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
1026 return 0;
1027 h = cx18_find_handle(cx);
1028 if (h == CX18_INVALID_TASK_HANDLE) {
1029 CX18_ERR("Can't find valid task handle for "
1030 "V4L2_ENC_CMD_RESUME\n");
1031 return -EBADFD;
1032 }
1033 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
1034 cx18_unmute(cx);
1035 break;
1036
1037 default:
1038 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1039 return -EINVAL;
1040 }
1041 return 0;
1042 }
1043
1044 static int cx18_try_encoder_cmd(struct file *file, void *fh,
1045 struct v4l2_encoder_cmd *enc)
1046 {
1047 struct cx18 *cx = fh2id(fh)->cx;
1048
1049 switch (enc->cmd) {
1050 case V4L2_ENC_CMD_START:
1051 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
1052 enc->flags = 0;
1053 break;
1054
1055 case V4L2_ENC_CMD_STOP:
1056 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
1057 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
1058 break;
1059
1060 case V4L2_ENC_CMD_PAUSE:
1061 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
1062 enc->flags = 0;
1063 break;
1064
1065 case V4L2_ENC_CMD_RESUME:
1066 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
1067 enc->flags = 0;
1068 break;
1069
1070 default:
1071 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1072 return -EINVAL;
1073 }
1074 return 0;
1075 }
1076
1077 static int cx18_log_status(struct file *file, void *fh)
1078 {
1079 struct cx18 *cx = fh2id(fh)->cx;
1080 struct v4l2_input vidin;
1081 struct v4l2_audio audin;
1082 int i;
1083
1084 CX18_INFO("================= START STATUS CARD #%d "
1085 "=================\n", cx->instance);
1086 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
1087 if (cx->hw_flags & CX18_HW_TVEEPROM) {
1088 struct tveeprom tv;
1089
1090 cx18_read_eeprom(cx, &tv);
1091 }
1092 cx18_call_all(cx, core, log_status);
1093 cx18_get_input(cx, cx->active_input, &vidin);
1094 cx18_get_audio_input(cx, cx->audio_input, &audin);
1095 CX18_INFO("Video Input: %s\n", vidin.name);
1096 CX18_INFO("Audio Input: %s\n", audin.name);
1097 mutex_lock(&cx->gpio_lock);
1098 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
1099 cx->gpio_dir, cx->gpio_val);
1100 mutex_unlock(&cx->gpio_lock);
1101 CX18_INFO("Tuner: %s\n",
1102 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
1103 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);
1104 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
1105 for (i = 0; i < CX18_MAX_STREAMS; i++) {
1106 struct cx18_stream *s = &cx->streams[i];
1107
1108 if (s->video_dev == NULL || s->buffers == 0)
1109 continue;
1110 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
1111 s->name, s->s_flags,
1112 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
1113 / s->buffers,
1114 (s->buffers * s->buf_size) / 1024, s->buffers);
1115 }
1116 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
1117 (long long)cx->mpg_data_received,
1118 (long long)cx->vbi_data_inserted);
1119 CX18_INFO("================== END STATUS CARD #%d "
1120 "==================\n", cx->instance);
1121 return 0;
1122 }
1123
1124 static long cx18_default(struct file *file, void *fh, bool valid_prio,
1125 int cmd, void *arg)
1126 {
1127 struct cx18 *cx = fh2id(fh)->cx;
1128
1129 switch (cmd) {
1130 case VIDIOC_INT_RESET: {
1131 u32 val = *(u32 *)arg;
1132
1133 if ((val == 0) || (val & 0x01))
1134 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,
1135 (u32) CX18_GPIO_RESET_Z8F0811);
1136 break;
1137 }
1138
1139 default:
1140 return -EINVAL;
1141 }
1142 return 0;
1143 }
1144
1145 long cx18_v4l2_ioctl(struct file *filp, unsigned int cmd,
1146 unsigned long arg)
1147 {
1148 struct video_device *vfd = video_devdata(filp);
1149 struct cx18_open_id *id = file2id(filp);
1150 struct cx18 *cx = id->cx;
1151 long res;
1152
1153 mutex_lock(&cx->serialize_lock);
1154
1155 if (cx18_debug & CX18_DBGFLG_IOCTL)
1156 vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
1157 res = video_ioctl2(filp, cmd, arg);
1158 vfd->debug = 0;
1159 mutex_unlock(&cx->serialize_lock);
1160 return res;
1161 }
1162
1163 static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
1164 .vidioc_querycap = cx18_querycap,
1165 .vidioc_s_audio = cx18_s_audio,
1166 .vidioc_g_audio = cx18_g_audio,
1167 .vidioc_enumaudio = cx18_enumaudio,
1168 .vidioc_enum_input = cx18_enum_input,
1169 .vidioc_cropcap = cx18_cropcap,
1170 .vidioc_s_crop = cx18_s_crop,
1171 .vidioc_g_crop = cx18_g_crop,
1172 .vidioc_g_input = cx18_g_input,
1173 .vidioc_s_input = cx18_s_input,
1174 .vidioc_g_frequency = cx18_g_frequency,
1175 .vidioc_s_frequency = cx18_s_frequency,
1176 .vidioc_s_tuner = cx18_s_tuner,
1177 .vidioc_g_tuner = cx18_g_tuner,
1178 .vidioc_g_enc_index = cx18_g_enc_index,
1179 .vidioc_g_std = cx18_g_std,
1180 .vidioc_s_std = cx18_s_std,
1181 .vidioc_log_status = cx18_log_status,
1182 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,
1183 .vidioc_encoder_cmd = cx18_encoder_cmd,
1184 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd,
1185 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,
1186 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,
1187 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,
1188 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,
1189 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,
1190 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,
1191 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,
1192 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,
1193 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,
1194 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,
1195 .vidioc_g_chip_ident = cx18_g_chip_ident,
1196 #ifdef CONFIG_VIDEO_ADV_DEBUG
1197 .vidioc_g_register = cx18_g_register,
1198 .vidioc_s_register = cx18_s_register,
1199 #endif
1200 .vidioc_default = cx18_default,
1201 .vidioc_streamon = cx18_streamon,
1202 .vidioc_streamoff = cx18_streamoff,
1203 .vidioc_reqbufs = cx18_reqbufs,
1204 .vidioc_querybuf = cx18_querybuf,
1205 .vidioc_qbuf = cx18_qbuf,
1206 .vidioc_dqbuf = cx18_dqbuf,
1207 };
1208
1209 void cx18_set_funcs(struct video_device *vdev)
1210 {
1211 vdev->ioctl_ops = &cx18_ioctl_ops;
1212 }
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