?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
drm/rockchip: Don't change hdmi reference clock rate
[drm/drm-misc.git] / drivers / media / pci / cx18 / cx18-ioctl.c
blob1817b9ed042c5dc64fe14dd4bb5250bed492bb14
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
30 static const struct v4l2_fmtdesc cx18_formats_yuv[] = {
31 {
32 .index = 0,
33 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
34 .pixelformat = V4L2_PIX_FMT_NV12_16L16,
35 },
36 {
37 .index = 1,
38 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
39 .pixelformat = V4L2_PIX_FMT_UYVY,
40 },
41 };
42
43 static const struct v4l2_fmtdesc cx18_formats_mpeg[] = {
44 {
45 .index = 0,
46 .type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
47 .flags = V4L2_FMT_FLAG_COMPRESSED,
48 .pixelformat = V4L2_PIX_FMT_MPEG,
49 },
50 };
51
52 static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
53 struct v4l2_format *fmt)
54 {
55 struct cx18_open_id *id = fh2id(fh);
56 struct cx18 *cx = id->cx;
57 struct cx18_stream *s = &cx->streams[id->type];
58 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
59
60 pixfmt->width = cx->cxhdl.width;
61 pixfmt->height = cx->cxhdl.height;
62 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
63 pixfmt->field = V4L2_FIELD_INTERLACED;
64 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
65 pixfmt->pixelformat = s->pixelformat;
66 pixfmt->sizeimage = s->vb_bytes_per_frame;
67 pixfmt->bytesperline = s->vb_bytes_per_line;
68 } else {
69 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
70 pixfmt->sizeimage = 128 * 1024;
71 pixfmt->bytesperline = 0;
72 }
73 return 0;
74 }
75
76 static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
77 struct v4l2_format *fmt)
78 {
79 struct cx18_open_id *id = fh2id(fh);
80 struct cx18 *cx = id->cx;
81 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
82 int w = pixfmt->width;
83 int h = pixfmt->height;
84
85 w = min(w, 720);
86 w = max(w, 720 / 16);
87
88 h = min(h, cx->is_50hz ? 576 : 480);
89 h = max(h, (cx->is_50hz ? 576 : 480) / 8);
90
91 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
92 if (pixfmt->pixelformat != V4L2_PIX_FMT_NV12_16L16 &&
93 pixfmt->pixelformat != V4L2_PIX_FMT_UYVY)
94 pixfmt->pixelformat = V4L2_PIX_FMT_UYVY;
95 /* YUV height must be a multiple of 32 */
96 h = round_up(h, 32);
97 /*
98 * HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
99 * UYUV YUV size is (Y=(h*720) + UV=(h*(720)))
100 */
101 if (pixfmt->pixelformat == V4L2_PIX_FMT_NV12_16L16) {
102 pixfmt->sizeimage = h * 720 * 3 / 2;
103 pixfmt->bytesperline = 720; /* First plane */
104 } else {
105 pixfmt->sizeimage = h * 720 * 2;
106 pixfmt->bytesperline = 1440; /* Packed */
107 }
108 } else {
109 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
110 pixfmt->sizeimage = 128 * 1024;
111 pixfmt->bytesperline = 0;
112 }
113
114 pixfmt->width = w;
115 pixfmt->height = h;
116 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
117 pixfmt->field = V4L2_FIELD_INTERLACED;
118 return 0;
119 }
120
121 static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
122 struct v4l2_format *fmt)
123 {
124 struct cx18_open_id *id = fh2id(fh);
125 struct cx18 *cx = id->cx;
126 struct v4l2_subdev_format format = {
127 .which = V4L2_SUBDEV_FORMAT_ACTIVE,
128 };
129 struct cx18_stream *s = &cx->streams[id->type];
130 int ret;
131 int w, h;
132
133 ret = cx18_try_fmt_vid_cap(file, fh, fmt);
134 if (ret)
135 return ret;
136 w = fmt->fmt.pix.width;
137 h = fmt->fmt.pix.height;
138
139 if (cx->cxhdl.width == w && cx->cxhdl.height == h &&
140 s->pixelformat == fmt->fmt.pix.pixelformat)
141 return 0;
142
143 if (atomic_read(&cx->ana_capturing) > 0)
144 return -EBUSY;
145
146 s->pixelformat = fmt->fmt.pix.pixelformat;
147 s->vb_bytes_per_frame = fmt->fmt.pix.sizeimage;
148 s->vb_bytes_per_line = fmt->fmt.pix.bytesperline;
149
150 format.format.width = cx->cxhdl.width = w;
151 format.format.height = cx->cxhdl.height = h;
152 format.format.code = MEDIA_BUS_FMT_FIXED;
153 v4l2_subdev_call(cx->sd_av, pad, set_fmt, NULL, &format);
154 return cx18_g_fmt_vid_cap(file, fh, fmt);
155 }
156
157 u16 cx18_service2vbi(int type)
158 {
159 switch (type) {
160 case V4L2_SLICED_TELETEXT_B:
161 return CX18_SLICED_TYPE_TELETEXT_B;
162 case V4L2_SLICED_CAPTION_525:
163 return CX18_SLICED_TYPE_CAPTION_525;
164 case V4L2_SLICED_WSS_625:
165 return CX18_SLICED_TYPE_WSS_625;
166 case V4L2_SLICED_VPS:
167 return CX18_SLICED_TYPE_VPS;
168 default:
169 return 0;
170 }
171 }
172
173 /* Check if VBI services are allowed on the (field, line) for the video std */
174 static int valid_service_line(int field, int line, int is_pal)
175 {
176 return (is_pal && line >= 6 &&
177 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||
178 (!is_pal && line >= 10 && line < 22);
179 }
180
181 /*
182 * For a (field, line, std) and inbound potential set of services for that line,
183 * return the first valid service of those passed in the incoming set for that
184 * line in priority order:
185 * CC, VPS, or WSS over TELETEXT for well known lines
186 * TELETEXT, before VPS, before CC, before WSS, for other lines
187 */
188 static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
189 {
190 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
191 int i;
192
193 set = set & valid_set;
194 if (set == 0 || !valid_service_line(field, line, is_pal))
195 return 0;
196 if (!is_pal) {
197 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
198 return V4L2_SLICED_CAPTION_525;
199 } else {
200 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
201 return V4L2_SLICED_VPS;
202 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
203 return V4L2_SLICED_WSS_625;
204 if (line == 23)
205 return 0;
206 }
207 for (i = 0; i < 32; i++) {
208 if (BIT(i) & set)
209 return 1 << i;
210 }
211 return 0;
212 }
213
214 /*
215 * Expand the service_set of *fmt into valid service_lines for the std,
216 * and clear the passed in fmt->service_set
217 */
218 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
219 {
220 u16 set = fmt->service_set;
221 int f, l;
222
223 fmt->service_set = 0;
224 for (f = 0; f < 2; f++) {
225 for (l = 0; l < 24; l++)
226 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
227 }
228 }
229
230 /*
231 * Sanitize the service_lines in *fmt per the video std, and return 1
232 * if any service_line is left as valid after santization
233 */
234 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
235 {
236 int f, l;
237 u16 set = 0;
238
239 for (f = 0; f < 2; f++) {
240 for (l = 0; l < 24; l++) {
241 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
242 set |= fmt->service_lines[f][l];
243 }
244 }
245 return set != 0;
246 }
247
248 /* Compute the service_set from the assumed valid service_lines of *fmt */
249 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
250 {
251 int f, l;
252 u16 set = 0;
253
254 for (f = 0; f < 2; f++) {
255 for (l = 0; l < 24; l++)
256 set |= fmt->service_lines[f][l];
257 }
258 return set;
259 }
260
261 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
262 struct v4l2_format *fmt)
263 {
264 struct cx18 *cx = fh2id(fh)->cx;
265 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
266
267 vbifmt->sampling_rate = 27000000;
268 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */
269 vbifmt->samples_per_line = VBI_ACTIVE_SAMPLES - 4;
270 vbifmt->sample_format = V4L2_PIX_FMT_GREY;
271 vbifmt->start[0] = cx->vbi.start[0];
272 vbifmt->start[1] = cx->vbi.start[1];
273 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;
274 vbifmt->flags = 0;
275 vbifmt->reserved[0] = 0;
276 vbifmt->reserved[1] = 0;
277 return 0;
278 }
279
280 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
281 struct v4l2_format *fmt)
282 {
283 struct cx18 *cx = fh2id(fh)->cx;
284 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
285
286 /* sane, V4L2 spec compliant, defaults */
287 vbifmt->reserved[0] = 0;
288 vbifmt->reserved[1] = 0;
289 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
290 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
291 vbifmt->service_set = 0;
292
293 /*
294 * Fetch the configured service_lines and total service_set from the
295 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in
296 * fmt->fmt.sliced under valid calling conditions
297 */
298 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
299 return -EINVAL;
300
301 vbifmt->service_set = cx18_get_service_set(vbifmt);
302 return 0;
303 }
304
305 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
306 struct v4l2_format *fmt)
307 {
308 return cx18_g_fmt_vbi_cap(file, fh, fmt);
309 }
310
311 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
312 struct v4l2_format *fmt)
313 {
314 struct cx18 *cx = fh2id(fh)->cx;
315 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
316
317 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
318 vbifmt->reserved[0] = 0;
319 vbifmt->reserved[1] = 0;
320
321 /* If given a service set, expand it validly & clear passed in set */
322 if (vbifmt->service_set)
323 cx18_expand_service_set(vbifmt, cx->is_50hz);
324 /* Sanitize the service_lines, and compute the new set if any valid */
325 if (check_service_set(vbifmt, cx->is_50hz))
326 vbifmt->service_set = cx18_get_service_set(vbifmt);
327 return 0;
328 }
329
330 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
331 struct v4l2_format *fmt)
332 {
333 struct cx18_open_id *id = fh2id(fh);
334 struct cx18 *cx = id->cx;
335 int ret;
336
337 /*
338 * Changing the Encoder's Raw VBI parameters won't have any effect
339 * if any analog capture is ongoing
340 */
341 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
342 return -EBUSY;
343
344 /*
345 * Set the digitizer registers for raw active VBI.
346 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
347 * calling conditions
348 */
349 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
350 if (ret)
351 return ret;
352
353 /* Store our new v4l2 (non-)sliced VBI state */
354 cx->vbi.sliced_in->service_set = 0;
355 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
356
357 return cx18_g_fmt_vbi_cap(file, fh, fmt);
358 }
359
360 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
361 struct v4l2_format *fmt)
362 {
363 struct cx18_open_id *id = fh2id(fh);
364 struct cx18 *cx = id->cx;
365 int ret;
366 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
367
368 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
369
370 /*
371 * Changing the Encoder's Raw VBI parameters won't have any effect
372 * if any analog capture is ongoing
373 */
374 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
375 return -EBUSY;
376
377 /*
378 * Set the service_lines requested in the digitizer/slicer registers.
379 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
380 * passed in fmt->fmt.sliced under valid calling conditions
381 */
382 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
383 if (ret)
384 return ret;
385 /* Store our current v4l2 sliced VBI settings */
386 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
387 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
388 return 0;
389 }
390
391 #ifdef CONFIG_VIDEO_ADV_DEBUG
392 static int cx18_g_register(struct file *file, void *fh,
393 struct v4l2_dbg_register *reg)
394 {
395 struct cx18 *cx = fh2id(fh)->cx;
396
397 if (reg->reg & 0x3)
398 return -EINVAL;
399 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
400 return -EINVAL;
401 reg->size = 4;
402 reg->val = cx18_read_enc(cx, reg->reg);
403 return 0;
404 }
405
406 static int cx18_s_register(struct file *file, void *fh,
407 const struct v4l2_dbg_register *reg)
408 {
409 struct cx18 *cx = fh2id(fh)->cx;
410
411 if (reg->reg & 0x3)
412 return -EINVAL;
413 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
414 return -EINVAL;
415 cx18_write_enc(cx, reg->val, reg->reg);
416 return 0;
417 }
418 #endif
419
420 static int cx18_querycap(struct file *file, void *fh,
421 struct v4l2_capability *vcap)
422 {
423 struct cx18_open_id *id = fh2id(fh);
424 struct cx18 *cx = id->cx;
425
426 strscpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
427 strscpy(vcap->card, cx->card_name, sizeof(vcap->card));
428 vcap->capabilities = cx->v4l2_cap | V4L2_CAP_DEVICE_CAPS;
429 return 0;
430 }
431
432 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
433 {
434 struct cx18 *cx = fh2id(fh)->cx;
435
436 return cx18_get_audio_input(cx, vin->index, vin);
437 }
438
439 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
440 {
441 struct cx18 *cx = fh2id(fh)->cx;
442
443 vin->index = cx->audio_input;
444 return cx18_get_audio_input(cx, vin->index, vin);
445 }
446
447 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout)
448 {
449 struct cx18 *cx = fh2id(fh)->cx;
450
451 if (vout->index >= cx->nof_audio_inputs)
452 return -EINVAL;
453 cx->audio_input = vout->index;
454 cx18_audio_set_io(cx);
455 return 0;
456 }
457
458 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
459 {
460 struct cx18 *cx = fh2id(fh)->cx;
461
462 /* set it to defaults from our table */
463 return cx18_get_input(cx, vin->index, vin);
464 }
465
466 static int cx18_g_pixelaspect(struct file *file, void *fh,
467 int type, struct v4l2_fract *f)
468 {
469 struct cx18 *cx = fh2id(fh)->cx;
470
471 if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
472 return -EINVAL;
473
474 f->numerator = cx->is_50hz ? 54 : 11;
475 f->denominator = cx->is_50hz ? 59 : 10;
476 return 0;
477 }
478
479 static int cx18_g_selection(struct file *file, void *fh,
480 struct v4l2_selection *sel)
481 {
482 struct cx18 *cx = fh2id(fh)->cx;
483
484 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
485 return -EINVAL;
486 switch (sel->target) {
487 case V4L2_SEL_TGT_CROP_BOUNDS:
488 case V4L2_SEL_TGT_CROP_DEFAULT:
489 sel->r.top = sel->r.left = 0;
490 sel->r.width = 720;
491 sel->r.height = cx->is_50hz ? 576 : 480;
492 break;
493 default:
494 return -EINVAL;
495 }
496 return 0;
497 }
498
499 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
500 struct v4l2_fmtdesc *fmt)
501 {
502 struct cx18_open_id *id = fh2id(fh);
503
504 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
505 if (fmt->index >= ARRAY_SIZE(cx18_formats_yuv))
506 return -EINVAL;
507 *fmt = cx18_formats_yuv[fmt->index];
508 return 0;
509 }
510 if (fmt->index)
511 return -EINVAL;
512 *fmt = cx18_formats_mpeg[0];
513 return 0;
514 }
515
516 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
517 {
518 struct cx18 *cx = fh2id(fh)->cx;
519
520 *i = cx->active_input;
521 return 0;
522 }
523
524 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
525 {
526 struct cx18_open_id *id = fh2id(fh);
527 struct cx18 *cx = id->cx;
528 v4l2_std_id std = V4L2_STD_ALL;
529 const struct cx18_card_video_input *card_input =
530 cx->card->video_inputs + inp;
531
532 if (inp >= cx->nof_inputs)
533 return -EINVAL;
534
535 if (inp == cx->active_input) {
536 CX18_DEBUG_INFO("Input unchanged\n");
537 return 0;
538 }
539
540 CX18_DEBUG_INFO("Changing input from %d to %d\n",
541 cx->active_input, inp);
542
543 cx->active_input = inp;
544 /* Set the audio input to whatever is appropriate for the input type. */
545 cx->audio_input = cx->card->video_inputs[inp].audio_index;
546 if (card_input->video_type == V4L2_INPUT_TYPE_TUNER)
547 std = cx->tuner_std;
548 cx->streams[CX18_ENC_STREAM_TYPE_MPG].video_dev.tvnorms = std;
549 cx->streams[CX18_ENC_STREAM_TYPE_YUV].video_dev.tvnorms = std;
550 cx->streams[CX18_ENC_STREAM_TYPE_VBI].video_dev.tvnorms = std;
551
552 /* prevent others from messing with the streams until
553 we're finished changing inputs. */
554 cx18_mute(cx);
555 cx18_video_set_io(cx);
556 cx18_audio_set_io(cx);
557 cx18_unmute(cx);
558 return 0;
559 }
560
561 static int cx18_g_frequency(struct file *file, void *fh,
562 struct v4l2_frequency *vf)
563 {
564 struct cx18 *cx = fh2id(fh)->cx;
565
566 if (vf->tuner != 0)
567 return -EINVAL;
568
569 cx18_call_all(cx, tuner, g_frequency, vf);
570 return 0;
571 }
572
573 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
574 {
575 struct cx18_open_id *id = fh2id(fh);
576 struct cx18 *cx = id->cx;
577
578 if (vf->tuner != 0)
579 return -EINVAL;
580
581 cx18_mute(cx);
582 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
583 cx18_call_all(cx, tuner, s_frequency, vf);
584 cx18_unmute(cx);
585 return 0;
586 }
587
588 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
589 {
590 struct cx18 *cx = fh2id(fh)->cx;
591
592 *std = cx->std;
593 return 0;
594 }
595
596 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
597 {
598 struct cx18_open_id *id = fh2id(fh);
599 struct cx18 *cx = id->cx;
600
601 if ((std & V4L2_STD_ALL) == 0)
602 return -EINVAL;
603
604 if (std == cx->std)
605 return 0;
606
607 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
608 atomic_read(&cx->ana_capturing) > 0) {
609 /* Switching standard would turn off the radio or mess
610 with already running streams, prevent that by
611 returning EBUSY. */
612 return -EBUSY;
613 }
614
615 cx->std = std;
616 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
617 cx->is_50hz = !cx->is_60hz;
618 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);
619 cx->cxhdl.width = 720;
620 cx->cxhdl.height = cx->is_50hz ? 576 : 480;
621 /*
622 * HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
623 * UYUV YUV size is (Y=(h*720) + UV=(h*(720)))
624 */
625 if (cx->streams[CX18_ENC_STREAM_TYPE_YUV].pixelformat == V4L2_PIX_FMT_NV12_16L16) {
626 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_frame =
627 cx->cxhdl.height * 720 * 3 / 2;
628 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_line = 720;
629 } else {
630 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_frame =
631 cx->cxhdl.height * 720 * 2;
632 cx->streams[CX18_ENC_STREAM_TYPE_YUV].vb_bytes_per_line = 1440;
633 }
634 cx->vbi.count = cx->is_50hz ? 18 : 12;
635 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
636 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
637 CX18_DEBUG_INFO("Switching standard to %llx.\n",
638 (unsigned long long) cx->std);
639
640 /* Tuner */
641 cx18_call_all(cx, video, s_std, cx->std);
642 return 0;
643 }
644
645 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
646 {
647 struct cx18_open_id *id = fh2id(fh);
648 struct cx18 *cx = id->cx;
649
650 if (vt->index != 0)
651 return -EINVAL;
652
653 cx18_call_all(cx, tuner, s_tuner, vt);
654 return 0;
655 }
656
657 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
658 {
659 struct cx18 *cx = fh2id(fh)->cx;
660
661 if (vt->index != 0)
662 return -EINVAL;
663
664 cx18_call_all(cx, tuner, g_tuner, vt);
665
666 if (vt->type == V4L2_TUNER_RADIO)
667 strscpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
668 else
669 strscpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
670 return 0;
671 }
672
673 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
674 struct v4l2_sliced_vbi_cap *cap)
675 {
676 struct cx18 *cx = fh2id(fh)->cx;
677 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
678 int f, l;
679
680 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
681 return -EINVAL;
682
683 cap->service_set = 0;
684 for (f = 0; f < 2; f++) {
685 for (l = 0; l < 24; l++) {
686 if (valid_service_line(f, l, cx->is_50hz)) {
687 /*
688 * We can find all v4l2 supported vbi services
689 * for the standard, on a valid line for the std
690 */
691 cap->service_lines[f][l] = set;
692 cap->service_set |= set;
693 } else
694 cap->service_lines[f][l] = 0;
695 }
696 }
697 for (f = 0; f < 3; f++)
698 cap->reserved[f] = 0;
699 return 0;
700 }
701
702 static int _cx18_process_idx_data(struct cx18_buffer *buf,
703 struct v4l2_enc_idx *idx)
704 {
705 int consumed, remaining;
706 struct v4l2_enc_idx_entry *e_idx;
707 struct cx18_enc_idx_entry *e_buf;
708
709 /* Frame type lookup: 1=I, 2=P, 4=B */
710 static const int mapping[8] = {
711 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
712 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
713 };
714
715 /*
716 * Assumption here is that a buf holds an integral number of
717 * struct cx18_enc_idx_entry objects and is properly aligned.
718 * This is enforced by the module options on IDX buffer sizes.
719 */
720 remaining = buf->bytesused - buf->readpos;
721 consumed = 0;
722 e_idx = &idx->entry[idx->entries];
723 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
724
725 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
726 idx->entries < V4L2_ENC_IDX_ENTRIES) {
727
728 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
729 | le32_to_cpu(e_buf->offset_low);
730
731 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
732 | le32_to_cpu(e_buf->pts_low);
733
734 e_idx->length = le32_to_cpu(e_buf->length);
735
736 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
737
738 e_idx->reserved[0] = 0;
739 e_idx->reserved[1] = 0;
740
741 idx->entries++;
742 e_idx = &idx->entry[idx->entries];
743 e_buf++;
744
745 remaining -= sizeof(struct cx18_enc_idx_entry);
746 consumed += sizeof(struct cx18_enc_idx_entry);
747 }
748
749 /* Swallow any partial entries at the end, if there are any */
750 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
751 consumed += remaining;
752
753 buf->readpos += consumed;
754 return consumed;
755 }
756
757 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
758 struct v4l2_enc_idx *idx)
759 {
760 if (s->type != CX18_ENC_STREAM_TYPE_IDX)
761 return -EINVAL;
762
763 if (mdl->curr_buf == NULL)
764 mdl->curr_buf = list_first_entry(&mdl->buf_list,
765 struct cx18_buffer, list);
766
767 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
768 /*
769 * For some reason we've exhausted the buffers, but the MDL
770 * object still said some data was unread.
771 * Fix that and bail out.
772 */
773 mdl->readpos = mdl->bytesused;
774 return 0;
775 }
776
777 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
778
779 /* Skip any empty buffers in the MDL */
780 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
781 continue;
782
783 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
784
785 /* exit when MDL drained or request satisfied */
786 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
787 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
788 mdl->readpos >= mdl->bytesused)
789 break;
790 }
791 return 0;
792 }
793
794 static int cx18_g_enc_index(struct file *file, void *fh,
795 struct v4l2_enc_idx *idx)
796 {
797 struct cx18 *cx = fh2id(fh)->cx;
798 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
799 s32 tmp;
800 struct cx18_mdl *mdl;
801
802 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
803 return -EINVAL;
804
805 /* Compute the best case number of entries we can buffer */
806 tmp = s->buffers -
807 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
808 if (tmp <= 0)
809 tmp = 1;
810 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
811
812 /* Fill out the header of the return structure */
813 idx->entries = 0;
814 idx->entries_cap = tmp;
815 memset(idx->reserved, 0, sizeof(idx->reserved));
816
817 /* Pull IDX MDLs and buffers from q_full and populate the entries */
818 do {
819 mdl = cx18_dequeue(s, &s->q_full);
820 if (mdl == NULL) /* No more IDX data right now */
821 break;
822
823 /* Extract the Index entry data from the MDL and buffers */
824 cx18_process_idx_data(s, mdl, idx);
825 if (mdl->readpos < mdl->bytesused) {
826 /* We finished with data remaining, push the MDL back */
827 cx18_push(s, mdl, &s->q_full);
828 break;
829 }
830
831 /* We drained this MDL, schedule it to go to the firmware */
832 cx18_enqueue(s, mdl, &s->q_free);
833
834 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
835
836 /* Tell the work handler to send free IDX MDLs to the firmware */
837 cx18_stream_load_fw_queue(s);
838 return 0;
839 }
840
841 static int cx18_encoder_cmd(struct file *file, void *fh,
842 struct v4l2_encoder_cmd *enc)
843 {
844 struct cx18_open_id *id = fh2id(fh);
845 struct cx18 *cx = id->cx;
846 u32 h;
847
848 switch (enc->cmd) {
849 case V4L2_ENC_CMD_START:
850 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
851 enc->flags = 0;
852 return cx18_start_capture(id);
853
854 case V4L2_ENC_CMD_STOP:
855 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
856 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
857 cx18_stop_capture(&cx->streams[id->type],
858 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
859 break;
860
861 case V4L2_ENC_CMD_PAUSE:
862 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
863 enc->flags = 0;
864 if (!atomic_read(&cx->ana_capturing))
865 return -EPERM;
866 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
867 return 0;
868 h = cx18_find_handle(cx);
869 if (h == CX18_INVALID_TASK_HANDLE) {
870 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_PAUSE\n");
871 return -EBADFD;
872 }
873 cx18_mute(cx);
874 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
875 break;
876
877 case V4L2_ENC_CMD_RESUME:
878 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
879 enc->flags = 0;
880 if (!atomic_read(&cx->ana_capturing))
881 return -EPERM;
882 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
883 return 0;
884 h = cx18_find_handle(cx);
885 if (h == CX18_INVALID_TASK_HANDLE) {
886 CX18_ERR("Can't find valid task handle for V4L2_ENC_CMD_RESUME\n");
887 return -EBADFD;
888 }
889 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
890 cx18_unmute(cx);
891 break;
892
893 default:
894 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
895 return -EINVAL;
896 }
897 return 0;
898 }
899
900 static int cx18_try_encoder_cmd(struct file *file, void *fh,
901 struct v4l2_encoder_cmd *enc)
902 {
903 struct cx18 *cx = fh2id(fh)->cx;
904
905 switch (enc->cmd) {
906 case V4L2_ENC_CMD_START:
907 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
908 enc->flags = 0;
909 break;
910
911 case V4L2_ENC_CMD_STOP:
912 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
913 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
914 break;
915
916 case V4L2_ENC_CMD_PAUSE:
917 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
918 enc->flags = 0;
919 break;
920
921 case V4L2_ENC_CMD_RESUME:
922 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
923 enc->flags = 0;
924 break;
925
926 default:
927 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
928 return -EINVAL;
929 }
930 return 0;
931 }
932
933 static int cx18_log_status(struct file *file, void *fh)
934 {
935 struct cx18 *cx = fh2id(fh)->cx;
936 struct v4l2_input vidin;
937 struct v4l2_audio audin;
938 int i;
939
940 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
941 if (cx->hw_flags & CX18_HW_TVEEPROM) {
942 struct tveeprom tv;
943
944 cx18_read_eeprom(cx, &tv);
945 }
946 cx18_call_all(cx, core, log_status);
947 cx18_get_input(cx, cx->active_input, &vidin);
948 cx18_get_audio_input(cx, cx->audio_input, &audin);
949 CX18_INFO("Video Input: %s\n", vidin.name);
950 CX18_INFO("Audio Input: %s\n", audin.name);
951 mutex_lock(&cx->gpio_lock);
952 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
953 cx->gpio_dir, cx->gpio_val);
954 mutex_unlock(&cx->gpio_lock);
955 CX18_INFO("Tuner: %s\n",
956 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
957 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);
958 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
959 for (i = 0; i < CX18_MAX_STREAMS; i++) {
960 struct cx18_stream *s = &cx->streams[i];
961
962 if (s->video_dev.v4l2_dev == NULL || s->buffers == 0)
963 continue;
964 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
965 s->name, s->s_flags,
966 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
967 / s->buffers,
968 (s->buffers * s->buf_size) / 1024, s->buffers);
969 }
970 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
971 (long long)cx->mpg_data_received,
972 (long long)cx->vbi_data_inserted);
973 return 0;
974 }
975
976 static long cx18_default(struct file *file, void *fh, bool valid_prio,
977 unsigned int cmd, void *arg)
978 {
979 struct cx18 *cx = fh2id(fh)->cx;
980
981 switch (cmd) {
982 case VIDIOC_INT_RESET: {
983 u32 val = *(u32 *)arg;
984
985 if ((val == 0) || (val & 0x01))
986 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,
987 (u32) CX18_GPIO_RESET_Z8F0811);
988 break;
989 }
990
991 default:
992 return -ENOTTY;
993 }
994 return 0;
995 }
996
997 static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
998 .vidioc_querycap = cx18_querycap,
999 .vidioc_s_audio = cx18_s_audio,
1000 .vidioc_g_audio = cx18_g_audio,
1001 .vidioc_enumaudio = cx18_enumaudio,
1002 .vidioc_enum_input = cx18_enum_input,
1003 .vidioc_g_pixelaspect = cx18_g_pixelaspect,
1004 .vidioc_g_selection = cx18_g_selection,
1005 .vidioc_g_input = cx18_g_input,
1006 .vidioc_s_input = cx18_s_input,
1007 .vidioc_g_frequency = cx18_g_frequency,
1008 .vidioc_s_frequency = cx18_s_frequency,
1009 .vidioc_s_tuner = cx18_s_tuner,
1010 .vidioc_g_tuner = cx18_g_tuner,
1011 .vidioc_g_enc_index = cx18_g_enc_index,
1012 .vidioc_g_std = cx18_g_std,
1013 .vidioc_s_std = cx18_s_std,
1014 .vidioc_log_status = cx18_log_status,
1015 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,
1016 .vidioc_encoder_cmd = cx18_encoder_cmd,
1017 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd,
1018 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,
1019 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,
1020 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,
1021 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,
1022 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,
1023 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,
1024 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,
1025 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,
1026 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,
1027 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,
1028 #ifdef CONFIG_VIDEO_ADV_DEBUG
1029 .vidioc_g_register = cx18_g_register,
1030 .vidioc_s_register = cx18_s_register,
1031 #endif
1032 .vidioc_default = cx18_default,
1033
1034 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1035 .vidioc_querybuf = vb2_ioctl_querybuf,
1036 .vidioc_qbuf = vb2_ioctl_qbuf,
1037 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1038 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1039 .vidioc_streamon = vb2_ioctl_streamon,
1040 .vidioc_streamoff = vb2_ioctl_streamoff,
1041 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
1042 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1043 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1044 };
1045
1046 void cx18_set_funcs(struct video_device *vdev)
1047 {
1048 vdev->ioctl_ops = &cx18_ioctl_ops;
1049 }
Kernel DRM miscellaneous fixes and cross-tree changes