2 * cx18 ioctl system call
4 * Derived from ivtv-ioctl.c
6 * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
7 * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
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.
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.
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
25 #include "cx18-driver.h"
27 #include "cx18-version.h"
28 #include "cx18-mailbox.h"
30 #include "cx18-queue.h"
31 #include "cx18-fileops.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>
43 u16 cx18_service2vbi(int type)
46 case V4L2_SLICED_TELETEXT_B:
47 return CX18_SLICED_TYPE_TELETEXT_B;
48 case V4L2_SLICED_CAPTION_525:
49 return CX18_SLICED_TYPE_CAPTION_525;
50 case V4L2_SLICED_WSS_625:
51 return CX18_SLICED_TYPE_WSS_625;
53 return CX18_SLICED_TYPE_VPS;
59 /* Check if VBI services are allowed on the (field, line) for the video std */
60 static int valid_service_line(int field, int line, int is_pal)
62 return (is_pal && line >= 6 &&
63 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||
64 (!is_pal && line >= 10 && line < 22);
68 * For a (field, line, std) and inbound potential set of services for that line,
69 * return the first valid service of those passed in the incoming set for that
70 * line in priority order:
71 * CC, VPS, or WSS over TELETEXT for well known lines
72 * TELETEXT, before VPS, before CC, before WSS, for other lines
74 static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
76 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
79 set = set & valid_set;
80 if (set == 0 || !valid_service_line(field, line, is_pal))
83 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
84 return V4L2_SLICED_CAPTION_525;
86 if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
87 return V4L2_SLICED_VPS;
88 if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
89 return V4L2_SLICED_WSS_625;
93 for (i = 0; i < 32; i++) {
101 * Expand the service_set of *fmt into valid service_lines for the std,
102 * and clear the passed in fmt->service_set
104 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
106 u16 set = fmt->service_set;
109 fmt->service_set = 0;
110 for (f = 0; f < 2; f++) {
111 for (l = 0; l < 24; l++)
112 fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
117 * Sanitize the service_lines in *fmt per the video std, and return 1
118 * if any service_line is left as valid after santization
120 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
125 for (f = 0; f < 2; f++) {
126 for (l = 0; l < 24; l++) {
127 fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
128 set |= fmt->service_lines[f][l];
134 /* Compute the service_set from the assumed valid service_lines of *fmt */
135 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
140 for (f = 0; f < 2; f++) {
141 for (l = 0; l < 24; l++)
142 set |= fmt->service_lines[f][l];
147 static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
148 struct v4l2_format *fmt)
150 struct cx18_open_id *id = fh2id(fh);
151 struct cx18 *cx = id->cx;
152 struct cx18_stream *s = &cx->streams[id->type];
153 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
155 pixfmt->width = cx->cxhdl.width;
156 pixfmt->height = cx->cxhdl.height;
157 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
158 pixfmt->field = V4L2_FIELD_INTERLACED;
159 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
160 pixfmt->pixelformat = s->pixelformat;
161 pixfmt->sizeimage = s->vb_bytes_per_frame;
162 pixfmt->bytesperline = 720;
164 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
165 pixfmt->sizeimage = 128 * 1024;
166 pixfmt->bytesperline = 0;
171 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
172 struct v4l2_format *fmt)
174 struct cx18 *cx = fh2id(fh)->cx;
175 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
177 vbifmt->sampling_rate = 27000000;
178 vbifmt->offset = 248; /* FIXME - slightly wrong for both 50 & 60 Hz */
179 vbifmt->samples_per_line = vbi_active_samples - 4;
180 vbifmt->sample_format = V4L2_PIX_FMT_GREY;
181 vbifmt->start[0] = cx->vbi.start[0];
182 vbifmt->start[1] = cx->vbi.start[1];
183 vbifmt->count[0] = vbifmt->count[1] = cx->vbi.count;
185 vbifmt->reserved[0] = 0;
186 vbifmt->reserved[1] = 0;
190 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
191 struct v4l2_format *fmt)
193 struct cx18 *cx = fh2id(fh)->cx;
194 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
196 /* sane, V4L2 spec compliant, defaults */
197 vbifmt->reserved[0] = 0;
198 vbifmt->reserved[1] = 0;
199 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
200 memset(vbifmt->service_lines, 0, sizeof(vbifmt->service_lines));
201 vbifmt->service_set = 0;
204 * Fetch the configured service_lines and total service_set from the
205 * digitizer/slicer. Note, cx18_av_vbi() wipes the passed in
206 * fmt->fmt.sliced under valid calling conditions
208 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
211 vbifmt->service_set = cx18_get_service_set(vbifmt);
215 static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
216 struct v4l2_format *fmt)
218 struct cx18_open_id *id = fh2id(fh);
219 struct cx18 *cx = id->cx;
220 int w = fmt->fmt.pix.width;
221 int h = fmt->fmt.pix.height;
226 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
227 /* YUV height must be a multiple of 32 */
231 h = min(h, cx->is_50hz ? 576 : 480);
234 fmt->fmt.pix.width = w;
235 fmt->fmt.pix.height = h;
239 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
240 struct v4l2_format *fmt)
242 return cx18_g_fmt_vbi_cap(file, fh, fmt);
245 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
246 struct v4l2_format *fmt)
248 struct cx18 *cx = fh2id(fh)->cx;
249 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
251 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
252 vbifmt->reserved[0] = 0;
253 vbifmt->reserved[1] = 0;
255 /* If given a service set, expand it validly & clear passed in set */
256 if (vbifmt->service_set)
257 cx18_expand_service_set(vbifmt, cx->is_50hz);
258 /* Sanitize the service_lines, and compute the new set if any valid */
259 if (check_service_set(vbifmt, cx->is_50hz))
260 vbifmt->service_set = cx18_get_service_set(vbifmt);
264 static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
265 struct v4l2_format *fmt)
267 struct cx18_open_id *id = fh2id(fh);
268 struct cx18 *cx = id->cx;
269 struct v4l2_mbus_framefmt mbus_fmt;
270 struct cx18_stream *s = &cx->streams[id->type];
274 ret = cx18_try_fmt_vid_cap(file, fh, fmt);
277 w = fmt->fmt.pix.width;
278 h = fmt->fmt.pix.height;
280 if (cx->cxhdl.width == w && cx->cxhdl.height == h &&
281 s->pixelformat == fmt->fmt.pix.pixelformat)
284 if (atomic_read(&cx->ana_capturing) > 0)
287 s->pixelformat = fmt->fmt.pix.pixelformat;
288 /* HM12 YUV size is (Y=(h*720) + UV=(h*(720/2)))
289 UYUV YUV size is (Y=(h*720) + UV=(h*(720))) */
290 if (s->pixelformat == V4L2_PIX_FMT_HM12)
291 s->vb_bytes_per_frame = h * 720 * 3 / 2;
293 s->vb_bytes_per_frame = h * 720 * 2;
295 mbus_fmt.width = cx->cxhdl.width = w;
296 mbus_fmt.height = cx->cxhdl.height = h;
297 mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
298 v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt);
299 return cx18_g_fmt_vid_cap(file, fh, fmt);
302 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
303 struct v4l2_format *fmt)
305 struct cx18_open_id *id = fh2id(fh);
306 struct cx18 *cx = id->cx;
310 * Changing the Encoder's Raw VBI parameters won't have any effect
311 * if any analog capture is ongoing
313 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
317 * Set the digitizer registers for raw active VBI.
318 * Note cx18_av_vbi_wipes out a lot of the passed in fmt under valid
321 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
325 /* Store our new v4l2 (non-)sliced VBI state */
326 cx->vbi.sliced_in->service_set = 0;
327 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
329 return cx18_g_fmt_vbi_cap(file, fh, fmt);
332 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
333 struct v4l2_format *fmt)
335 struct cx18_open_id *id = fh2id(fh);
336 struct cx18 *cx = id->cx;
338 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
340 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
343 * Changing the Encoder's Raw VBI parameters won't have any effect
344 * if any analog capture is ongoing
346 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
350 * Set the service_lines requested in the digitizer/slicer registers.
351 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
352 * passed in fmt->fmt.sliced under valid calling conditions
354 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
357 /* Store our current v4l2 sliced VBI settings */
358 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
359 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
363 #ifdef CONFIG_VIDEO_ADV_DEBUG
364 static int cx18_g_register(struct file *file, void *fh,
365 struct v4l2_dbg_register *reg)
367 struct cx18 *cx = fh2id(fh)->cx;
371 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
374 reg->val = cx18_read_enc(cx, reg->reg);
378 static int cx18_s_register(struct file *file, void *fh,
379 const struct v4l2_dbg_register *reg)
381 struct cx18 *cx = fh2id(fh)->cx;
385 if (reg->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
387 cx18_write_enc(cx, reg->val, reg->reg);
392 static int cx18_querycap(struct file *file, void *fh,
393 struct v4l2_capability *vcap)
395 struct cx18_open_id *id = fh2id(fh);
396 struct cx18 *cx = id->cx;
398 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
399 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
400 snprintf(vcap->bus_info, sizeof(vcap->bus_info),
401 "PCI:%s", pci_name(cx->pci_dev));
402 vcap->capabilities = cx->v4l2_cap; /* capabilities */
403 if (id->type == CX18_ENC_STREAM_TYPE_YUV)
404 vcap->capabilities |= V4L2_CAP_STREAMING;
408 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
410 struct cx18 *cx = fh2id(fh)->cx;
412 return cx18_get_audio_input(cx, vin->index, vin);
415 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
417 struct cx18 *cx = fh2id(fh)->cx;
419 vin->index = cx->audio_input;
420 return cx18_get_audio_input(cx, vin->index, vin);
423 static int cx18_s_audio(struct file *file, void *fh, const struct v4l2_audio *vout)
425 struct cx18 *cx = fh2id(fh)->cx;
427 if (vout->index >= cx->nof_audio_inputs)
429 cx->audio_input = vout->index;
430 cx18_audio_set_io(cx);
434 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
436 struct cx18 *cx = fh2id(fh)->cx;
438 /* set it to defaults from our table */
439 return cx18_get_input(cx, vin->index, vin);
442 static int cx18_cropcap(struct file *file, void *fh,
443 struct v4l2_cropcap *cropcap)
445 struct cx18 *cx = fh2id(fh)->cx;
447 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
449 cropcap->bounds.top = cropcap->bounds.left = 0;
450 cropcap->bounds.width = 720;
451 cropcap->bounds.height = cx->is_50hz ? 576 : 480;
452 cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
453 cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
454 cropcap->defrect = cropcap->bounds;
458 static int cx18_s_crop(struct file *file, void *fh, const struct v4l2_crop *crop)
460 struct cx18_open_id *id = fh2id(fh);
461 struct cx18 *cx = id->cx;
463 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
465 CX18_DEBUG_WARN("VIDIOC_S_CROP not implemented\n");
469 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
471 struct cx18 *cx = fh2id(fh)->cx;
473 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
475 CX18_DEBUG_WARN("VIDIOC_G_CROP not implemented\n");
479 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
480 struct v4l2_fmtdesc *fmt)
482 static const struct v4l2_fmtdesc formats[] = {
483 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
484 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 }
486 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED,
487 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 }
489 { 2, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
490 "UYVY 4:2:2", V4L2_PIX_FMT_UYVY, { 0, 0, 0, 0 }
494 if (fmt->index > ARRAY_SIZE(formats) - 1)
496 *fmt = formats[fmt->index];
500 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
502 struct cx18 *cx = fh2id(fh)->cx;
504 *i = cx->active_input;
508 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
510 struct cx18_open_id *id = fh2id(fh);
511 struct cx18 *cx = id->cx;
513 if (inp >= cx->nof_inputs)
516 if (inp == cx->active_input) {
517 CX18_DEBUG_INFO("Input unchanged\n");
521 CX18_DEBUG_INFO("Changing input from %d to %d\n",
522 cx->active_input, inp);
524 cx->active_input = inp;
525 /* Set the audio input to whatever is appropriate for the input type. */
526 cx->audio_input = cx->card->video_inputs[inp].audio_index;
528 /* prevent others from messing with the streams until
529 we're finished changing inputs. */
531 cx18_video_set_io(cx);
532 cx18_audio_set_io(cx);
537 static int cx18_g_frequency(struct file *file, void *fh,
538 struct v4l2_frequency *vf)
540 struct cx18 *cx = fh2id(fh)->cx;
545 cx18_call_all(cx, tuner, g_frequency, vf);
549 int cx18_s_frequency(struct file *file, void *fh, const struct v4l2_frequency *vf)
551 struct cx18_open_id *id = fh2id(fh);
552 struct cx18 *cx = id->cx;
558 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
559 cx18_call_all(cx, tuner, s_frequency, vf);
564 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
566 struct cx18 *cx = fh2id(fh)->cx;
572 int cx18_s_std(struct file *file, void *fh, v4l2_std_id std)
574 struct cx18_open_id *id = fh2id(fh);
575 struct cx18 *cx = id->cx;
577 if ((std & V4L2_STD_ALL) == 0)
583 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
584 atomic_read(&cx->ana_capturing) > 0) {
585 /* Switching standard would turn off the radio or mess
586 with already running streams, prevent that by
592 cx->is_60hz = (std & V4L2_STD_525_60) ? 1 : 0;
593 cx->is_50hz = !cx->is_60hz;
594 cx2341x_handler_set_50hz(&cx->cxhdl, cx->is_50hz);
595 cx->cxhdl.width = 720;
596 cx->cxhdl.height = cx->is_50hz ? 576 : 480;
597 cx->vbi.count = cx->is_50hz ? 18 : 12;
598 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
599 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
600 CX18_DEBUG_INFO("Switching standard to %llx.\n",
601 (unsigned long long) cx->std);
604 cx18_call_all(cx, core, s_std, cx->std);
608 static int cx18_s_tuner(struct file *file, void *fh, const struct v4l2_tuner *vt)
610 struct cx18_open_id *id = fh2id(fh);
611 struct cx18 *cx = id->cx;
616 cx18_call_all(cx, tuner, s_tuner, vt);
620 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
622 struct cx18 *cx = fh2id(fh)->cx;
627 cx18_call_all(cx, tuner, g_tuner, vt);
629 if (vt->type == V4L2_TUNER_RADIO)
630 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
632 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
636 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
637 struct v4l2_sliced_vbi_cap *cap)
639 struct cx18 *cx = fh2id(fh)->cx;
640 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
643 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
646 cap->service_set = 0;
647 for (f = 0; f < 2; f++) {
648 for (l = 0; l < 24; l++) {
649 if (valid_service_line(f, l, cx->is_50hz)) {
651 * We can find all v4l2 supported vbi services
652 * for the standard, on a valid line for the std
654 cap->service_lines[f][l] = set;
655 cap->service_set |= set;
657 cap->service_lines[f][l] = 0;
660 for (f = 0; f < 3; f++)
661 cap->reserved[f] = 0;
665 static int _cx18_process_idx_data(struct cx18_buffer *buf,
666 struct v4l2_enc_idx *idx)
668 int consumed, remaining;
669 struct v4l2_enc_idx_entry *e_idx;
670 struct cx18_enc_idx_entry *e_buf;
672 /* Frame type lookup: 1=I, 2=P, 4=B */
673 const int mapping[8] = {
674 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
675 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
679 * Assumption here is that a buf holds an integral number of
680 * struct cx18_enc_idx_entry objects and is properly aligned.
681 * This is enforced by the module options on IDX buffer sizes.
683 remaining = buf->bytesused - buf->readpos;
685 e_idx = &idx->entry[idx->entries];
686 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
688 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
689 idx->entries < V4L2_ENC_IDX_ENTRIES) {
691 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
692 | le32_to_cpu(e_buf->offset_low);
694 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
695 | le32_to_cpu(e_buf->pts_low);
697 e_idx->length = le32_to_cpu(e_buf->length);
699 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
701 e_idx->reserved[0] = 0;
702 e_idx->reserved[1] = 0;
705 e_idx = &idx->entry[idx->entries];
708 remaining -= sizeof(struct cx18_enc_idx_entry);
709 consumed += sizeof(struct cx18_enc_idx_entry);
712 /* Swallow any partial entries at the end, if there are any */
713 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
714 consumed += remaining;
716 buf->readpos += consumed;
720 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
721 struct v4l2_enc_idx *idx)
723 if (s->type != CX18_ENC_STREAM_TYPE_IDX)
726 if (mdl->curr_buf == NULL)
727 mdl->curr_buf = list_first_entry(&mdl->buf_list,
728 struct cx18_buffer, list);
730 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
732 * For some reason we've exhausted the buffers, but the MDL
733 * object still said some data was unread.
734 * Fix that and bail out.
736 mdl->readpos = mdl->bytesused;
740 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
742 /* Skip any empty buffers in the MDL */
743 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
746 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
748 /* exit when MDL drained or request satisfied */
749 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
750 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
751 mdl->readpos >= mdl->bytesused)
757 static int cx18_g_enc_index(struct file *file, void *fh,
758 struct v4l2_enc_idx *idx)
760 struct cx18 *cx = fh2id(fh)->cx;
761 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
763 struct cx18_mdl *mdl;
765 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
768 /* Compute the best case number of entries we can buffer */
770 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
773 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
775 /* Fill out the header of the return structure */
777 idx->entries_cap = tmp;
778 memset(idx->reserved, 0, sizeof(idx->reserved));
780 /* Pull IDX MDLs and buffers from q_full and populate the entries */
782 mdl = cx18_dequeue(s, &s->q_full);
783 if (mdl == NULL) /* No more IDX data right now */
786 /* Extract the Index entry data from the MDL and buffers */
787 cx18_process_idx_data(s, mdl, idx);
788 if (mdl->readpos < mdl->bytesused) {
789 /* We finished with data remaining, push the MDL back */
790 cx18_push(s, mdl, &s->q_full);
794 /* We drained this MDL, schedule it to go to the firmware */
795 cx18_enqueue(s, mdl, &s->q_free);
797 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
799 /* Tell the work handler to send free IDX MDLs to the firmware */
800 cx18_stream_load_fw_queue(s);
804 static struct videobuf_queue *cx18_vb_queue(struct cx18_open_id *id)
806 struct videobuf_queue *q = NULL;
807 struct cx18 *cx = id->cx;
808 struct cx18_stream *s = &cx->streams[id->type];
810 switch (s->vb_type) {
811 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
814 case V4L2_BUF_TYPE_VBI_CAPTURE:
822 static int cx18_streamon(struct file *file, void *priv,
823 enum v4l2_buf_type type)
825 struct cx18_open_id *id = file->private_data;
826 struct cx18 *cx = id->cx;
827 struct cx18_stream *s = &cx->streams[id->type];
829 /* Start the hardware only if we're the video device */
830 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
831 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
834 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
837 /* Establish a buffer timeout */
838 mod_timer(&s->vb_timeout, msecs_to_jiffies(2000) + jiffies);
840 return videobuf_streamon(cx18_vb_queue(id));
843 static int cx18_streamoff(struct file *file, void *priv,
844 enum v4l2_buf_type type)
846 struct cx18_open_id *id = file->private_data;
847 struct cx18 *cx = id->cx;
848 struct cx18_stream *s = &cx->streams[id->type];
850 /* Start the hardware only if we're the video device */
851 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
852 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
855 if (id->type != CX18_ENC_STREAM_TYPE_YUV)
858 return videobuf_streamoff(cx18_vb_queue(id));
861 static int cx18_reqbufs(struct file *file, void *priv,
862 struct v4l2_requestbuffers *rb)
864 struct cx18_open_id *id = file->private_data;
865 struct cx18 *cx = id->cx;
866 struct cx18_stream *s = &cx->streams[id->type];
868 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
869 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
872 return videobuf_reqbufs(cx18_vb_queue(id), rb);
875 static int cx18_querybuf(struct file *file, void *priv,
876 struct v4l2_buffer *b)
878 struct cx18_open_id *id = file->private_data;
879 struct cx18 *cx = id->cx;
880 struct cx18_stream *s = &cx->streams[id->type];
882 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
883 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
886 return videobuf_querybuf(cx18_vb_queue(id), b);
889 static int cx18_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
891 struct cx18_open_id *id = file->private_data;
892 struct cx18 *cx = id->cx;
893 struct cx18_stream *s = &cx->streams[id->type];
895 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
896 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
899 return videobuf_qbuf(cx18_vb_queue(id), b);
902 static int cx18_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
904 struct cx18_open_id *id = file->private_data;
905 struct cx18 *cx = id->cx;
906 struct cx18_stream *s = &cx->streams[id->type];
908 if ((s->vb_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) &&
909 (s->vb_type != V4L2_BUF_TYPE_VBI_CAPTURE))
912 return videobuf_dqbuf(cx18_vb_queue(id), b, file->f_flags & O_NONBLOCK);
915 static int cx18_encoder_cmd(struct file *file, void *fh,
916 struct v4l2_encoder_cmd *enc)
918 struct cx18_open_id *id = fh2id(fh);
919 struct cx18 *cx = id->cx;
923 case V4L2_ENC_CMD_START:
924 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
926 return cx18_start_capture(id);
928 case V4L2_ENC_CMD_STOP:
929 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
930 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
931 cx18_stop_capture(id,
932 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
935 case V4L2_ENC_CMD_PAUSE:
936 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
938 if (!atomic_read(&cx->ana_capturing))
940 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
942 h = cx18_find_handle(cx);
943 if (h == CX18_INVALID_TASK_HANDLE) {
944 CX18_ERR("Can't find valid task handle for "
945 "V4L2_ENC_CMD_PAUSE\n");
949 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
952 case V4L2_ENC_CMD_RESUME:
953 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
955 if (!atomic_read(&cx->ana_capturing))
957 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
959 h = cx18_find_handle(cx);
960 if (h == CX18_INVALID_TASK_HANDLE) {
961 CX18_ERR("Can't find valid task handle for "
962 "V4L2_ENC_CMD_RESUME\n");
965 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
970 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
976 static int cx18_try_encoder_cmd(struct file *file, void *fh,
977 struct v4l2_encoder_cmd *enc)
979 struct cx18 *cx = fh2id(fh)->cx;
982 case V4L2_ENC_CMD_START:
983 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
987 case V4L2_ENC_CMD_STOP:
988 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
989 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
992 case V4L2_ENC_CMD_PAUSE:
993 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
997 case V4L2_ENC_CMD_RESUME:
998 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
1003 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1009 static int cx18_log_status(struct file *file, void *fh)
1011 struct cx18 *cx = fh2id(fh)->cx;
1012 struct v4l2_input vidin;
1013 struct v4l2_audio audin;
1016 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
1017 if (cx->hw_flags & CX18_HW_TVEEPROM) {
1020 cx18_read_eeprom(cx, &tv);
1022 cx18_call_all(cx, core, log_status);
1023 cx18_get_input(cx, cx->active_input, &vidin);
1024 cx18_get_audio_input(cx, cx->audio_input, &audin);
1025 CX18_INFO("Video Input: %s\n", vidin.name);
1026 CX18_INFO("Audio Input: %s\n", audin.name);
1027 mutex_lock(&cx->gpio_lock);
1028 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
1029 cx->gpio_dir, cx->gpio_val);
1030 mutex_unlock(&cx->gpio_lock);
1031 CX18_INFO("Tuner: %s\n",
1032 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
1033 v4l2_ctrl_handler_log_status(&cx->cxhdl.hdl, cx->v4l2_dev.name);
1034 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
1035 for (i = 0; i < CX18_MAX_STREAMS; i++) {
1036 struct cx18_stream *s = &cx->streams[i];
1038 if (s->video_dev == NULL || s->buffers == 0)
1040 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
1041 s->name, s->s_flags,
1042 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
1044 (s->buffers * s->buf_size) / 1024, s->buffers);
1046 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
1047 (long long)cx->mpg_data_received,
1048 (long long)cx->vbi_data_inserted);
1052 static long cx18_default(struct file *file, void *fh, bool valid_prio,
1053 unsigned int cmd, void *arg)
1055 struct cx18 *cx = fh2id(fh)->cx;
1058 case VIDIOC_INT_RESET: {
1059 u32 val = *(u32 *)arg;
1061 if ((val == 0) || (val & 0x01))
1062 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,
1063 (u32) CX18_GPIO_RESET_Z8F0811);
1073 static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
1074 .vidioc_querycap = cx18_querycap,
1075 .vidioc_s_audio = cx18_s_audio,
1076 .vidioc_g_audio = cx18_g_audio,
1077 .vidioc_enumaudio = cx18_enumaudio,
1078 .vidioc_enum_input = cx18_enum_input,
1079 .vidioc_cropcap = cx18_cropcap,
1080 .vidioc_s_crop = cx18_s_crop,
1081 .vidioc_g_crop = cx18_g_crop,
1082 .vidioc_g_input = cx18_g_input,
1083 .vidioc_s_input = cx18_s_input,
1084 .vidioc_g_frequency = cx18_g_frequency,
1085 .vidioc_s_frequency = cx18_s_frequency,
1086 .vidioc_s_tuner = cx18_s_tuner,
1087 .vidioc_g_tuner = cx18_g_tuner,
1088 .vidioc_g_enc_index = cx18_g_enc_index,
1089 .vidioc_g_std = cx18_g_std,
1090 .vidioc_s_std = cx18_s_std,
1091 .vidioc_log_status = cx18_log_status,
1092 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,
1093 .vidioc_encoder_cmd = cx18_encoder_cmd,
1094 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd,
1095 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,
1096 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,
1097 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,
1098 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,
1099 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,
1100 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,
1101 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,
1102 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,
1103 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,
1104 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,
1105 #ifdef CONFIG_VIDEO_ADV_DEBUG
1106 .vidioc_g_register = cx18_g_register,
1107 .vidioc_s_register = cx18_s_register,
1109 .vidioc_default = cx18_default,
1110 .vidioc_streamon = cx18_streamon,
1111 .vidioc_streamoff = cx18_streamoff,
1112 .vidioc_reqbufs = cx18_reqbufs,
1113 .vidioc_querybuf = cx18_querybuf,
1114 .vidioc_qbuf = cx18_qbuf,
1115 .vidioc_dqbuf = cx18_dqbuf,
1118 void cx18_set_funcs(struct video_device *vdev)
1120 vdev->ioctl_ops = &cx18_ioctl_ops;