Loading...
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
44u16 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 */
61static 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 */
75static 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 */
105void 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 */
121static 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 */
136u16 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
148static 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 pixfmt->sizeimage = s->vb_bytes_per_frame;
164 pixfmt->bytesperline = 720;
165 } else {
166 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
167 pixfmt->sizeimage = 128 * 1024;
168 pixfmt->bytesperline = 0;
169 }
170 return 0;
171}
172
173static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
174 struct v4l2_format *fmt)
175{
176 struct cx18 *cx = fh2id(fh)->cx;
177 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
178
179 vbifmt->sampling_rate = 27000000;
180 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */
181 vbifmt->samples_per_line = vbi_active_samples - 4;
182 vbifmt->sample_format = V4L2_PIX_FMT_GREY;
183 vbifmt->start[0] = cx->vbi.start[0];
184 vbifmt->start[1] = cx->vbi.start[1];
185 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;
186 vbifmt->flags = 0;
187 vbifmt->reserved[0] = 0;
188 vbifmt->reserved[1] = 0;
189 return 0;
190}
191
192static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
193 struct v4l2_format *fmt)
194{
195 struct cx18 *cx = fh2id(fh)->cx;
196 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
197
198 /* sane, V4L2 spec compliant, defaults */
199 vbifmt->reserved[0] = 0;
200 vbifmt->reserved[1] = 0;
201 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
202 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
203 vbifmt->service_set = 0;
204
205 /*
206 * Fetch the configured service_lines and total service_set from the
207 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in
208 * fmt->fmt.sliced under valid calling conditions
209 */
210 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
211 return -EINVAL;
212
213 /* Ensure V4L2 spec compliant output */
214 vbifmt->reserved[0] = 0;
215 vbifmt->reserved[1] = 0;
216 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
217 vbifmt->service_set = cx18_get_service_set(vbifmt);
218 return 0;
219}
220
221static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
222 struct v4l2_format *fmt)
223{
224 struct cx18_open_id *id = fh2id(fh);
225 struct cx18 *cx = id->cx;
226 int w = fmt->fmt.pix.width;
227 int h = fmt->fmt.pix.height;
228 int min_h = 2;
229
230 w = min(w, 720);
231 w = max(w, 2);
232 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
233 /* YUV height must be a multiple of 32 */
234 h &= ~0x1f;
235 min_h = 32;
236 }
237 h = min(h, cx->is_50hz ? 576 : 480);
238 h = max(h, min_h);
239
240 fmt->fmt.pix.width = w;
241 fmt->fmt.pix.height = h;
242 return 0;
243}
244
245static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
246 struct v4l2_format *fmt)
247{
248 return cx18_g_fmt_vbi_cap(file, fh, fmt);
249}
250
251static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
252 struct v4l2_format *fmt)
253{
254 struct cx18 *cx = fh2id(fh)->cx;
255 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
256
257 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
258 vbifmt->reserved[0] = 0;
259 vbifmt->reserved[1] = 0;
260
261 /* If given a service set, expand it validly & clear passed in set */
262 if (vbifmt->service_set)
263 cx18_expand_service_set(vbifmt, cx->is_50hz);
264 /* Sanitize the service_lines, and compute the new set if any valid */
265 if (check_service_set(vbifmt, cx->is_50hz))
266 vbifmt->service_set = cx18_get_service_set(vbifmt);
267 return 0;
268}
269
270static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
271 struct v4l2_format *fmt)
272{
273 struct cx18_open_id *id = fh2id(fh);
274 struct cx18 *cx = id->cx;
275 struct v4l2_mbus_framefmt mbus_fmt;
276 struct cx18_stream *s = &cx->streams[id->type];
277 int ret;
278 int w, h;
279
280 ret = cx18_try_fmt_vid_cap(file, fh, fmt);
281 if (ret)
282 return ret;
283 w = fmt->fmt.pix.width;
284 h = fmt->fmt.pix.height;
285
286 if (cx->cxhdl.width == w && cx->cxhdl.height == h &&
287 s->pixelformat == fmt->fmt.pix.pixelformat)
288 return 0;
289
290 if (atomic_read(&cx->ana_capturing) > 0)
291 return -EBUSY;
292
293 s->pixelformat = fmt->fmt.pix.pixelformat;
294 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
295 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
296 if (s->pixelformat == V4L2_PIX_FMT_HM12)
297 s->vb_bytes_per_frame = h * 720 * 3 / 2;
298 else
299 s->vb_bytes_per_frame = h * 720 * 2;
300
301 mbus_fmt.width = cx->cxhdl.width = w;
302 mbus_fmt.height = cx->cxhdl.height = h;
303 mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
304 v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt);
305 return cx18_g_fmt_vid_cap(file, fh, fmt);
306}
307
308static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
309 struct v4l2_format *fmt)
310{
311 struct cx18_open_id *id = fh2id(fh);
312 struct cx18 *cx = id->cx;
313 int ret;
314
315 /*
316 * Changing the Encoder's Raw VBI parameters won't have any effect
317 * if any analog capture is ongoing
318 */
319 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
320 return -EBUSY;
321
322 /*
323 * Set the digitizer registers for raw active VBI.
324 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
325 * calling conditions
326 */
327 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
328 if (ret)
329 return ret;
330
331 /* Store our new v4l2 (non-)sliced VBI state */
332 cx->vbi.sliced_in->service_set = 0;
333 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
334
335 return cx18_g_fmt_vbi_cap(file, fh, fmt);
336}
337
338static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
339 struct v4l2_format *fmt)
340{
341 struct cx18_open_id *id = fh2id(fh);
342 struct cx18 *cx = id->cx;
343 int ret;
344 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
345
346 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
347
348 /*
349 * Changing the Encoder's Raw VBI parameters won't have any effect
350 * if any analog capture is ongoing
351 */
352 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
353 return -EBUSY;
354
355 /*
356 * Set the service_lines requested in the digitizer/slicer registers.
357 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
358 * passed in fmt->fmt.sliced under valid calling conditions
359 */
360 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
361 if (ret)
362 return ret;
363 /* Store our current v4l2 sliced VBI settings */
364 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
365 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
366 return 0;
367}
368
369static int cx18_g_chip_ident(struct file *file, void *fh,
370 struct v4l2_dbg_chip_ident *chip)
371{
372 struct cx18 *cx = fh2id(fh)->cx;
373 int err = 0;
374
375 chip->ident = V4L2_IDENT_NONE;
376 chip->revision = 0;
377 switch (chip->match.type) {
378 case V4L2_CHIP_MATCH_HOST:
379 switch (chip->match.addr) {
380 case 0:
381 chip->ident = V4L2_IDENT_CX23418;
382 chip->revision = cx18_read_reg(cx, 0xC72028);
383 break;
384 case 1:
385 /*
386 * The A/V decoder is always present, but in the rare
387 * case that the card doesn't have analog, we don't
388 * use it. We find it w/o using the cx->sd_av pointer
389 */
390 cx18_call_hw(cx, CX18_HW_418_AV,
391 core, g_chip_ident, chip);
392 break;
393 default:
394 /*
395 * Could return ident = V4L2_IDENT_UNKNOWN if we had
396 * other host chips at higher addresses, but we don't
397 */
398 err = -EINVAL; /* per V4L2 spec */
399 break;
400 }
401 break;
402 case V4L2_CHIP_MATCH_I2C_DRIVER:
403 /* If needed, returns V4L2_IDENT_AMBIGUOUS without extra work */
404 cx18_call_all(cx, core, g_chip_ident, chip);
405 break;
406 case V4L2_CHIP_MATCH_I2C_ADDR:
407 /*
408 * We could return V4L2_IDENT_UNKNOWN, but we don't do the work
409 * to look if a chip is at the address with no driver. That's a
410 * dangerous thing to do with EEPROMs anyway.
411 */
412 cx18_call_all(cx, core, g_chip_ident, chip);
413 break;
414 default:
415 err = -EINVAL;
416 break;
417 }
418 return err;
419}
420
421#ifdef CONFIG_VIDEO_ADV_DEBUG
422static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg)
423{
424 struct v4l2_dbg_register *regs = arg;
425
426 if (!capable(CAP_SYS_ADMIN))
427 return -EPERM;
428 if (regs->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
429 return -EINVAL;
430
431 regs->size = 4;
432 if (cmd == VIDIOC_DBG_S_REGISTER)
433 cx18_write_enc(cx, regs->val, regs->reg);
434 else
435 regs->val = cx18_read_enc(cx, regs->reg);
436 return 0;
437}
438
439static int cx18_g_register(struct file *file, void *fh,
440 struct v4l2_dbg_register *reg)
441{
442 struct cx18 *cx = fh2id(fh)->cx;
443
444 if (v4l2_chip_match_host(®->match))
445 return cx18_cxc(cx, VIDIOC_DBG_G_REGISTER, reg);
446 /* FIXME - errors shouldn't be ignored */
447 cx18_call_all(cx, core, g_register, reg);
448 return 0;
449}
450
451static int cx18_s_register(struct file *file, void *fh,
452 struct v4l2_dbg_register *reg)
453{
454 struct cx18 *cx = fh2id(fh)->cx;
455
456 if (v4l2_chip_match_host(®->match))
457 return cx18_cxc(cx, VIDIOC_DBG_S_REGISTER, reg);
458 /* FIXME - errors shouldn't be ignored */
459 cx18_call_all(cx, core, s_register, reg);
460 return 0;
461}
462#endif
463
464static int cx18_querycap(struct file *file, void *fh,
465 struct v4l2_capability *vcap)
466{
467 struct cx18_open_id *id = fh2id(fh);
468 struct cx18 *cx = id->cx;
469
470 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
471 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
472 snprintf(vcap->bus_info, sizeof(vcap->bus_info),
473 "PCI:%s", pci_name(cx->pci_dev));
474 vcap->capabilities = cx->v4l2_cap; /* capabilities */
475 if (id->type == CX18_ENC_STREAM_TYPE_YUV)
476 vcap->capabilities |= V4L2_CAP_STREAMING;
477 return 0;
478}
479
480static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
481{
482 struct cx18 *cx = fh2id(fh)->cx;
483
484 return cx18_get_audio_input(cx, vin->index, vin);
485}
486
487static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
488{
489 struct cx18 *cx = fh2id(fh)->cx;
490
491 vin->index = cx->audio_input;
492 return cx18_get_audio_input(cx, vin->index, vin);
493}
494
495static int cx18_s_audio(struct file *file, void *fh, struct v4l2_audio *vout)
496{
497 struct cx18 *cx = fh2id(fh)->cx;
498
499 if (vout->index >= cx->nof_audio_inputs)
500 return -EINVAL;
501 cx->audio_input = vout->index;
502 cx18_audio_set_io(cx);
503 return 0;
504}
505
506static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
507{
508 struct cx18 *cx = fh2id(fh)->cx;
509
510 /* set it to defaults from our table */
511 return cx18_get_input(cx, vin->index, vin);
512}
513
514static int cx18_cropcap(struct file *file, void *fh,
515 struct v4l2_cropcap *cropcap)
516{
517 struct cx18 *cx = fh2id(fh)->cx;
518
519 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
520 return -EINVAL;
521 cropcap->bounds.top = cropcap->bounds.left = 0;
522 cropcap->bounds.width = 720;
523 cropcap->bounds.height = cx->is_50hz ? 576 : 480;
524 cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
525 cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
526 cropcap->defrect = cropcap->bounds;
527 return 0;
528}
529
530static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
531{
532 struct cx18_open_id *id = fh2id(fh);
533 struct cx18 *cx = id->cx;
534
535 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
536 return -EINVAL;
537 CX18_DEBUG_WARN("VIDIOC_S_CROP not implemented\n");
538 return -EINVAL;
539}
540
541static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
542{
543 struct cx18 *cx = fh2id(fh)->cx;
544
545 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
546 return -EINVAL;
547 CX18_DEBUG_WARN("VIDIOC_G_CROP not implemented\n");
548 return -EINVAL;
549}
550
551static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
552 struct v4l2_fmtdesc *fmt)
553{
554 static const struct v4l2_fmtdesc formats[] = {
555 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
556 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 }
557 },
558 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED,
559 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 }
560 },
561 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
562 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 }
563 },
564 };
565
566 if (fmt->index > ARRAY_SIZE(formats) - 1)
567 return -EINVAL;
568 *fmt = formats[fmt->index];
569 return 0;
570}
571
572static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
573{
574 struct cx18 *cx = fh2id(fh)->cx;
575
576 *i = cx->active_input;
577 return 0;
578}
579
580int cx18_s_input(struct file *file, void *fh, unsigned int inp)
581{
582 struct cx18_open_id *id = fh2id(fh);
583 struct cx18 *cx = id->cx;
584
585 if (inp >= cx->nof_inputs)
586 return -EINVAL;
587
588 if (inp == cx->active_input) {
589 CX18_DEBUG_INFO("Input unchanged\n");
590 return 0;
591 }
592
593 CX18_DEBUG_INFO("Changing input from %d to %d\n",
594 cx->active_input, inp);
595
596 cx->active_input = inp;
597 /* Set the audio input to whatever is appropriate for the input type. */
598 cx->audio_input = cx->card->video_inputs[inp].audio_index;
599
600 /* prevent others from messing with the streams until
601 we're finished changing inputs. */
602 cx18_mute(cx);
603 cx18_video_set_io(cx);
604 cx18_audio_set_io(cx);
605 cx18_unmute(cx);
606 return 0;
607}
608
609static int cx18_g_frequency(struct file *file, void *fh,
610 struct v4l2_frequency *vf)
611{
612 struct cx18 *cx = fh2id(fh)->cx;
613
614 if (vf->tuner != 0)
615 return -EINVAL;
616
617 cx18_call_all(cx, tuner, g_frequency, vf);
618 return 0;
619}
620
621int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
622{
623 struct cx18_open_id *id = fh2id(fh);
624 struct cx18 *cx = id->cx;
625
626 if (vf->tuner != 0)
627 return -EINVAL;
628
629 cx18_mute(cx);
630 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
631 cx18_call_all(cx, tuner, s_frequency, vf);
632 cx18_unmute(cx);
633 return 0;
634}
635
636static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
637{
638 struct cx18 *cx = fh2id(fh)->cx;
639
640 *std = cx->std;
641 return 0;
642}
643
644int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std)
645{
646 struct cx18_open_id *id = fh2id(fh);
647 struct cx18 *cx = id->cx;
648
649 if ((*std & V4L2_STD_ALL) == 0)
650 return -EINVAL;
651
652 if (*std == cx->std)
653 return 0;
654
655 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
656 atomic_read(&cx->ana_capturing) > 0) {
657 /* Switching standard would turn off the radio or mess
658 with already running streams, prevent that by
659 returning EBUSY. */
660 return -EBUSY;
661 }
662
663 cx->std = *std;
664 cx->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
665 cx->is_50hz = !cx->is_60hz;
666 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);
667 cx->cxhdl.width = 720;
668 cx->cxhdl.height = cx->is_50hz ? 576 : 480;
669 cx->vbi.count = cx->is_50hz ? 18 : 12;
670 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
671 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
672 CX18_DEBUG_INFO("Switching standard to %llx.\n",
673 (unsigned long long) cx->std);
674
675 /* Tuner */
676 cx18_call_all(cx, core, s_std, cx->std);
677 return 0;
678}
679
680static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
681{
682 struct cx18_open_id *id = fh2id(fh);
683 struct cx18 *cx = id->cx;
684
685 if (vt->index != 0)
686 return -EINVAL;
687
688 cx18_call_all(cx, tuner, s_tuner, vt);
689 return 0;
690}
691
692static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
693{
694 struct cx18 *cx = fh2id(fh)->cx;
695
696 if (vt->index != 0)
697 return -EINVAL;
698
699 cx18_call_all(cx, tuner, g_tuner, vt);
700
701 if (vt->type == V4L2_TUNER_RADIO)
702 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
703 else
704 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
705 return 0;
706}
707
708static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
709 struct v4l2_sliced_vbi_cap *cap)
710{
711 struct cx18 *cx = fh2id(fh)->cx;
712 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
713 int f, l;
714
715 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
716 return -EINVAL;
717
718 cap->service_set = 0;
719 for (f = 0; f < 2; f++) {
720 for (l = 0; l < 24; l++) {
721 if (valid_service_line(f, l, cx->is_50hz)) {
722 /*
723 * We can find all v4l2 supported vbi services
724 * for the standard, on a valid line for the std
725 */
726 cap->service_lines[f][l] = set;
727 cap->service_set |= set;
728 } else
729 cap->service_lines[f][l] = 0;
730 }
731 }
732 for (f = 0; f < 3; f++)
733 cap->reserved[f] = 0;
734 return 0;
735}
736
737static int _cx18_process_idx_data(struct cx18_buffer *buf,
738 struct v4l2_enc_idx *idx)
739{
740 int consumed, remaining;
741 struct v4l2_enc_idx_entry *e_idx;
742 struct cx18_enc_idx_entry *e_buf;
743
744 /* Frame type lookup: 1=I, 2=P, 4=B */
745 const int mapping[8] = {
746 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
747 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
748 };
749
750 /*
751 * Assumption here is that a buf holds an integral number of
752 * struct cx18_enc_idx_entry objects and is properly aligned.
753 * This is enforced by the module options on IDX buffer sizes.
754 */
755 remaining = buf->bytesused - buf->readpos;
756 consumed = 0;
757 e_idx = &idx->entry[idx->entries];
758 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
759
760 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
761 idx->entries < V4L2_ENC_IDX_ENTRIES) {
762
763 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
764 | le32_to_cpu(e_buf->offset_low);
765
766 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
767 | le32_to_cpu(e_buf->pts_low);
768
769 e_idx->length = le32_to_cpu(e_buf->length);
770
771 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
772
773 e_idx->reserved[0] = 0;
774 e_idx->reserved[1] = 0;
775
776 idx->entries++;
777 e_idx = &idx->entry[idx->entries];
778 e_buf++;
779
780 remaining -= sizeof(struct cx18_enc_idx_entry);
781 consumed += sizeof(struct cx18_enc_idx_entry);
782 }
783
784 /* Swallow any partial entries at the end, if there are any */
785 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
786 consumed += remaining;
787
788 buf->readpos += consumed;
789 return consumed;
790}
791
792static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
793 struct v4l2_enc_idx *idx)
794{
795 if (s->type != CX18_ENC_STREAM_TYPE_IDX)
796 return -EINVAL;
797
798 if (mdl->curr_buf == NULL)
799 mdl->curr_buf = list_first_entry(&mdl->buf_list,
800 struct cx18_buffer, list);
801
802 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
803 /*
804 * For some reason we've exhausted the buffers, but the MDL
805 * object still said some data was unread.
806 * Fix that and bail out.
807 */
808 mdl->readpos = mdl->bytesused;
809 return 0;
810 }
811
812 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
813
814 /* Skip any empty buffers in the MDL */
815 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
816 continue;
817
818 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
819
820 /* exit when MDL drained or request satisfied */
821 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
822 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
823 mdl->readpos >= mdl->bytesused)
824 break;
825 }
826 return 0;
827}
828
829static int cx18_g_enc_index(struct file *file, void *fh,
830 struct v4l2_enc_idx *idx)
831{
832 struct cx18 *cx = fh2id(fh)->cx;
833 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
834 s32 tmp;
835 struct cx18_mdl *mdl;
836
837 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
838 return -EINVAL;
839
840 /* Compute the best case number of entries we can buffer */
841 tmp = s->buffers -
842 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
843 if (tmp <= 0)
844 tmp = 1;
845 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
846
847 /* Fill out the header of the return structure */
848 idx->entries = 0;
849 idx->entries_cap = tmp;
850 memset(idx->reserved, 0, sizeof(idx->reserved));
851
852 /* Pull IDX MDLs and buffers from q_full and populate the entries */
853 do {
854 mdl = cx18_dequeue(s, &s->q_full);
855 if (mdl == NULL) /* No more IDX data right now */
856 break;
857
858 /* Extract the Index entry data from the MDL and buffers */
859 cx18_process_idx_data(s, mdl, idx);
860 if (mdl->readpos < mdl->bytesused) {
861 /* We finished with data remaining, push the MDL back */
862 cx18_push(s, mdl, &s->q_full);
863 break;
864 }
865
866 /* We drained this MDL, schedule it to go to the firmware */
867 cx18_enqueue(s, mdl, &s->q_free);
868
869 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
870
871 /* Tell the work handler to send free IDX MDLs to the firmware */
872 cx18_stream_load_fw_queue(s);
873 return 0;
874}
875
876static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id)
877{
878 struct videobuf_queue *q = NULL;
879 struct cx18 *cx = id->cx;
880 struct cx18_stream *s = &cx->streams[id->type];
881
882 switch (s->vb_type) {
883 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
884 q = &s->vbuf_q;
885 break;
886 case V4L2_BUF_TYPE_VBI_CAPTURE:
887 break;
888 default:
889 break;
890 }
891 return q;
892}
893
894static int cx18_streamon(struct file *file, void *priv,
895 enum v4l2_buf_type type)
896{
897 struct cx18_open_id *id = file->private_data;
898 struct cx18 *cx = id->cx;
899 struct cx18_stream *s = &cx->streams[id->type];
900
901 /* Start the hardware only if we're the video device */
902 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
903 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
904 return -EINVAL;
905
906 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
907 return -EINVAL;
908
909 /* Establish a buffer timeout */
910 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies);
911
912 return videobuf_streamon(cx18_vb_queue(id));
913}
914
915static int cx18_streamoff(struct file *file, void *priv,
916 enum v4l2_buf_type type)
917{
918 struct cx18_open_id *id = file->private_data;
919 struct cx18 *cx = id->cx;
920 struct cx18_stream *s = &cx->streams[id->type];
921
922 /* Start the hardware only if we're the video device */
923 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
924 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
925 return -EINVAL;
926
927 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
928 return -EINVAL;
929
930 return videobuf_streamoff(cx18_vb_queue(id));
931}
932
933static int cx18_reqbufs(struct file *file, void *priv,
934 struct v4l2_requestbuffers *rb)
935{
936 struct cx18_open_id *id = file->private_data;
937 struct cx18 *cx = id->cx;
938 struct cx18_stream *s = &cx->streams[id->type];
939
940 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
941 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
942 return -EINVAL;
943
944 return videobuf_reqbufs(cx18_vb_queue(id), rb);
945}
946
947static int cx18_querybuf(struct file *file, void *priv,
948 struct v4l2_buffer *b)
949{
950 struct cx18_open_id *id = file->private_data;
951 struct cx18 *cx = id->cx;
952 struct cx18_stream *s = &cx->streams[id->type];
953
954 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
955 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
956 return -EINVAL;
957
958 return videobuf_querybuf(cx18_vb_queue(id), b);
959}
960
961static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
962{
963 struct cx18_open_id *id = file->private_data;
964 struct cx18 *cx = id->cx;
965 struct cx18_stream *s = &cx->streams[id->type];
966
967 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
968 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
969 return -EINVAL;
970
971 return videobuf_qbuf(cx18_vb_queue(id), b);
972}
973
974static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
975{
976 struct cx18_open_id *id = file->private_data;
977 struct cx18 *cx = id->cx;
978 struct cx18_stream *s = &cx->streams[id->type];
979
980 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
981 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
982 return -EINVAL;
983
984 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK);
985}
986
987static int cx18_encoder_cmd(struct file *file, void *fh,
988 struct v4l2_encoder_cmd *enc)
989{
990 struct cx18_open_id *id = fh2id(fh);
991 struct cx18 *cx = id->cx;
992 u32 h;
993
994 switch (enc->cmd) {
995 case V4L2_ENC_CMD_START:
996 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
997 enc->flags = 0;
998 return cx18_start_capture(id);
999
1000 case V4L2_ENC_CMD_STOP:
1001 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
1002 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
1003 cx18_stop_capture(id,
1004 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
1005 break;
1006
1007 case V4L2_ENC_CMD_PAUSE:
1008 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
1009 enc->flags = 0;
1010 if (!atomic_read(&cx->ana_capturing))
1011 return -EPERM;
1012 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
1013 return 0;
1014 h = cx18_find_handle(cx);
1015 if (h == CX18_INVALID_TASK_HANDLE) {
1016 CX18_ERR("Can't find valid task handle for "
1017 "V4L2_ENC_CMD_PAUSE\n");
1018 return -EBADFD;
1019 }
1020 cx18_mute(cx);
1021 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
1022 break;
1023
1024 case V4L2_ENC_CMD_RESUME:
1025 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
1026 enc->flags = 0;
1027 if (!atomic_read(&cx->ana_capturing))
1028 return -EPERM;
1029 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
1030 return 0;
1031 h = cx18_find_handle(cx);
1032 if (h == CX18_INVALID_TASK_HANDLE) {
1033 CX18_ERR("Can't find valid task handle for "
1034 "V4L2_ENC_CMD_RESUME\n");
1035 return -EBADFD;
1036 }
1037 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
1038 cx18_unmute(cx);
1039 break;
1040
1041 default:
1042 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1043 return -EINVAL;
1044 }
1045 return 0;
1046}
1047
1048static int cx18_try_encoder_cmd(struct file *file, void *fh,
1049 struct v4l2_encoder_cmd *enc)
1050{
1051 struct cx18 *cx = fh2id(fh)->cx;
1052
1053 switch (enc->cmd) {
1054 case V4L2_ENC_CMD_START:
1055 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
1056 enc->flags = 0;
1057 break;
1058
1059 case V4L2_ENC_CMD_STOP:
1060 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
1061 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
1062 break;
1063
1064 case V4L2_ENC_CMD_PAUSE:
1065 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
1066 enc->flags = 0;
1067 break;
1068
1069 case V4L2_ENC_CMD_RESUME:
1070 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
1071 enc->flags = 0;
1072 break;
1073
1074 default:
1075 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1076 return -EINVAL;
1077 }
1078 return 0;
1079}
1080
1081static int cx18_log_status(struct file *file, void *fh)
1082{
1083 struct cx18 *cx = fh2id(fh)->cx;
1084 struct v4l2_input vidin;
1085 struct v4l2_audio audin;
1086 int i;
1087
1088 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
1089 if (cx->hw_flags & CX18_HW_TVEEPROM) {
1090 struct tveeprom tv;
1091
1092 cx18_read_eeprom(cx, &tv);
1093 }
1094 cx18_call_all(cx, core, log_status);
1095 cx18_get_input(cx, cx->active_input, &vidin);
1096 cx18_get_audio_input(cx, cx->audio_input, &audin);
1097 CX18_INFO("Video Input: %s\n", vidin.name);
1098 CX18_INFO("Audio Input: %s\n", audin.name);
1099 mutex_lock(&cx->gpio_lock);
1100 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
1101 cx->gpio_dir, cx->gpio_val);
1102 mutex_unlock(&cx->gpio_lock);
1103 CX18_INFO("Tuner: %s\n",
1104 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
1105 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);
1106 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
1107 for (i = 0; i < CX18_MAX_STREAMS; i++) {
1108 struct cx18_stream *s = &cx->streams[i];
1109
1110 if (s->video_dev == NULL || s->buffers == 0)
1111 continue;
1112 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
1113 s->name, s->s_flags,
1114 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
1115 / s->buffers,
1116 (s->buffers * s->buf_size) / 1024, s->buffers);
1117 }
1118 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
1119 (long long)cx->mpg_data_received,
1120 (long long)cx->vbi_data_inserted);
1121 return 0;
1122}
1123
1124static 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 -ENOTTY;
1141 }
1142 return 0;
1143}
1144
1145long 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
1163static 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
1209void cx18_set_funcs(struct video_device *vdev)
1210{
1211 vdev->ioctl_ops = &cx18_ioctl_ops;
1212}