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>
42 #include <media/v4l2-chip-ident.h>
44 u16 cx18_service2vbi(int 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;
54 return CX18_SLICED_TYPE_VPS;
60 /* Check if VBI services are allowed on the (field, line) for the video std */
61 static int valid_service_line(int field, int line, int is_pal)
63 return (is_pal && line >= 6 &&
64 ((field == 0 && line <= 23) || (field == 1 && line <= 22))) ||
65 (!is_pal && line >= 10 && line < 22);
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
75 static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
77 u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
80 set = set & valid_set;
81 if (set == 0 || !valid_service_line(field, line, is_pal))
84 if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
85 return V4L2_SLICED_CAPTION_525;
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;
94 for (i = 0; i < 32; i++) {
102 * Expand the service_set of *fmt into valid service_lines for the std,
103 * and clear the passed in fmt->service_set
105 void cx18_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
107 u16 set = fmt->service_set;
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);
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
121 static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
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];
135 /* Compute the service_set from the assumed valid service_lines of *fmt */
136 u16 cx18_get_service_set(struct v4l2_sliced_vbi_format *fmt)
141 for (f = 0; f < 2; f++) {
142 for (l = 0; l < 24; l++)
143 set |= fmt->service_lines[f][l];
148 static int cx18_g_fmt_vid_cap(struct file *file, void *fh,
149 struct v4l2_format *fmt)
151 struct cx18_open_id *id = fh;
152 struct cx18 *cx = id->cx;
153 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
155 pixfmt->width = cx->params.width;
156 pixfmt->height = cx->params.height;
157 pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
158 pixfmt->field = V4L2_FIELD_INTERLACED;
160 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
161 pixfmt->pixelformat = V4L2_PIX_FMT_HM12;
162 /* YUV size is (Y=(h*720) + UV=(h*(720/2))) */
163 pixfmt->sizeimage = pixfmt->height * 720 * 3 / 2;
164 pixfmt->bytesperline = 720;
166 pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
167 pixfmt->sizeimage = 128 * 1024;
168 pixfmt->bytesperline = 0;
173 static int cx18_g_fmt_vbi_cap(struct file *file, void *fh,
174 struct v4l2_format *fmt)
176 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
177 struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;
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;
187 vbifmt->reserved[0] = 0;
188 vbifmt->reserved[1] = 0;
192 static int cx18_g_fmt_sliced_vbi_cap(struct file *file, void *fh,
193 struct v4l2_format *fmt)
195 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
196 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
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;
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
210 if (v4l2_subdev_call(cx->sd_av, vbi, g_sliced_fmt, &fmt->fmt.sliced))
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);
221 static int cx18_try_fmt_vid_cap(struct file *file, void *fh,
222 struct v4l2_format *fmt)
224 struct cx18_open_id *id = fh;
225 struct cx18 *cx = id->cx;
226 int w = fmt->fmt.pix.width;
227 int h = fmt->fmt.pix.height;
232 if (id->type == CX18_ENC_STREAM_TYPE_YUV) {
233 /* YUV height must be a multiple of 32 */
237 h = min(h, cx->is_50hz ? 576 : 480);
240 cx18_g_fmt_vid_cap(file, fh, fmt);
241 fmt->fmt.pix.width = w;
242 fmt->fmt.pix.height = h;
246 static int cx18_try_fmt_vbi_cap(struct file *file, void *fh,
247 struct v4l2_format *fmt)
249 return cx18_g_fmt_vbi_cap(file, fh, fmt);
252 static int cx18_try_fmt_sliced_vbi_cap(struct file *file, void *fh,
253 struct v4l2_format *fmt)
255 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
256 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
258 vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
259 vbifmt->reserved[0] = 0;
260 vbifmt->reserved[1] = 0;
262 /* If given a service set, expand it validly & clear passed in set */
263 if (vbifmt->service_set)
264 cx18_expand_service_set(vbifmt, cx->is_50hz);
265 /* Sanitize the service_lines, and compute the new set if any valid */
266 if (check_service_set(vbifmt, cx->is_50hz))
267 vbifmt->service_set = cx18_get_service_set(vbifmt);
271 static int cx18_s_fmt_vid_cap(struct file *file, void *fh,
272 struct v4l2_format *fmt)
274 struct cx18_open_id *id = fh;
275 struct cx18 *cx = id->cx;
276 struct v4l2_mbus_framefmt mbus_fmt;
280 ret = v4l2_prio_check(&cx->prio, id->prio);
284 ret = cx18_try_fmt_vid_cap(file, fh, fmt);
287 w = fmt->fmt.pix.width;
288 h = fmt->fmt.pix.height;
290 if (cx->params.width == w && cx->params.height == h)
293 if (atomic_read(&cx->ana_capturing) > 0)
296 mbus_fmt.width = cx->params.width = w;
297 mbus_fmt.height = cx->params.height = h;
298 mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
299 v4l2_subdev_call(cx->sd_av, video, s_mbus_fmt, &mbus_fmt);
300 return cx18_g_fmt_vid_cap(file, fh, fmt);
303 static int cx18_s_fmt_vbi_cap(struct file *file, void *fh,
304 struct v4l2_format *fmt)
306 struct cx18_open_id *id = fh;
307 struct cx18 *cx = id->cx;
310 ret = v4l2_prio_check(&cx->prio, id->prio);
315 * Changing the Encoder's Raw VBI parameters won't have any effect
316 * if any analog capture is ongoing
318 if (!cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
322 * Set the digitizer registers for raw active VBI.
323 * Note cx18_av_vbi_wipes out alot of the passed in fmt under valid
326 ret = v4l2_subdev_call(cx->sd_av, vbi, s_raw_fmt, &fmt->fmt.vbi);
330 /* Store our new v4l2 (non-)sliced VBI state */
331 cx->vbi.sliced_in->service_set = 0;
332 cx->vbi.in.type = V4L2_BUF_TYPE_VBI_CAPTURE;
334 return cx18_g_fmt_vbi_cap(file, fh, fmt);
337 static int cx18_s_fmt_sliced_vbi_cap(struct file *file, void *fh,
338 struct v4l2_format *fmt)
340 struct cx18_open_id *id = fh;
341 struct cx18 *cx = id->cx;
343 struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
345 ret = v4l2_prio_check(&cx->prio, id->prio);
349 cx18_try_fmt_sliced_vbi_cap(file, fh, fmt);
352 * Changing the Encoder's Raw VBI parameters won't have any effect
353 * if any analog capture is ongoing
355 if (cx18_raw_vbi(cx) && atomic_read(&cx->ana_capturing) > 0)
359 * Set the service_lines requested in the digitizer/slicer registers.
360 * Note, cx18_av_vbi() wipes some "impossible" service lines in the
361 * passed in fmt->fmt.sliced under valid calling conditions
363 ret = v4l2_subdev_call(cx->sd_av, vbi, s_sliced_fmt, &fmt->fmt.sliced);
366 /* Store our current v4l2 sliced VBI settings */
367 cx->vbi.in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
368 memcpy(cx->vbi.sliced_in, vbifmt, sizeof(*cx->vbi.sliced_in));
372 static int cx18_g_chip_ident(struct file *file, void *fh,
373 struct v4l2_dbg_chip_ident *chip)
375 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
378 chip->ident = V4L2_IDENT_NONE;
380 switch (chip->match.type) {
381 case V4L2_CHIP_MATCH_HOST:
382 switch (chip->match.addr) {
384 chip->ident = V4L2_IDENT_CX23418;
385 chip->revision = cx18_read_reg(cx, 0xC72028);
389 * The A/V decoder is always present, but in the rare
390 * case that the card doesn't have analog, we don't
391 * use it. We find it w/o using the cx->sd_av pointer
393 cx18_call_hw(cx, CX18_HW_418_AV,
394 core, g_chip_ident, chip);
398 * Could return ident = V4L2_IDENT_UNKNOWN if we had
399 * other host chips at higher addresses, but we don't
401 err = -EINVAL; /* per V4L2 spec */
405 case V4L2_CHIP_MATCH_I2C_DRIVER:
406 /* If needed, returns V4L2_IDENT_AMBIGUOUS without extra work */
407 cx18_call_all(cx, core, g_chip_ident, chip);
409 case V4L2_CHIP_MATCH_I2C_ADDR:
411 * We could return V4L2_IDENT_UNKNOWN, but we don't do the work
412 * to look if a chip is at the address with no driver. That's a
413 * dangerous thing to do with EEPROMs anyway.
415 cx18_call_all(cx, core, g_chip_ident, chip);
424 #ifdef CONFIG_VIDEO_ADV_DEBUG
425 static int cx18_cxc(struct cx18 *cx, unsigned int cmd, void *arg)
427 struct v4l2_dbg_register *regs = arg;
429 if (!capable(CAP_SYS_ADMIN))
431 if (regs->reg >= CX18_MEM_OFFSET + CX18_MEM_SIZE)
435 if (cmd == VIDIOC_DBG_S_REGISTER)
436 cx18_write_enc(cx, regs->val, regs->reg);
438 regs->val = cx18_read_enc(cx, regs->reg);
442 static int cx18_g_register(struct file *file, void *fh,
443 struct v4l2_dbg_register *reg)
445 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
447 if (v4l2_chip_match_host(®->match))
448 return cx18_cxc(cx, VIDIOC_DBG_G_REGISTER, reg);
449 /* FIXME - errors shouldn't be ignored */
450 cx18_call_all(cx, core, g_register, reg);
454 static int cx18_s_register(struct file *file, void *fh,
455 struct v4l2_dbg_register *reg)
457 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
459 if (v4l2_chip_match_host(®->match))
460 return cx18_cxc(cx, VIDIOC_DBG_S_REGISTER, reg);
461 /* FIXME - errors shouldn't be ignored */
462 cx18_call_all(cx, core, s_register, reg);
467 static int cx18_g_priority(struct file *file, void *fh, enum v4l2_priority *p)
469 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
471 *p = v4l2_prio_max(&cx->prio);
475 static int cx18_s_priority(struct file *file, void *fh, enum v4l2_priority prio)
477 struct cx18_open_id *id = fh;
478 struct cx18 *cx = id->cx;
480 return v4l2_prio_change(&cx->prio, &id->prio, prio);
483 static int cx18_querycap(struct file *file, void *fh,
484 struct v4l2_capability *vcap)
486 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
488 strlcpy(vcap->driver, CX18_DRIVER_NAME, sizeof(vcap->driver));
489 strlcpy(vcap->card, cx->card_name, sizeof(vcap->card));
490 snprintf(vcap->bus_info, sizeof(vcap->bus_info),
491 "PCI:%s", pci_name(cx->pci_dev));
492 vcap->version = CX18_DRIVER_VERSION; /* version */
493 vcap->capabilities = cx->v4l2_cap; /* capabilities */
497 static int cx18_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
499 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
501 return cx18_get_audio_input(cx, vin->index, vin);
504 static int cx18_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
506 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
508 vin->index = cx->audio_input;
509 return cx18_get_audio_input(cx, vin->index, vin);
512 static int cx18_s_audio(struct file *file, void *fh, struct v4l2_audio *vout)
514 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
516 if (vout->index >= cx->nof_audio_inputs)
518 cx->audio_input = vout->index;
519 cx18_audio_set_io(cx);
523 static int cx18_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
525 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
527 /* set it to defaults from our table */
528 return cx18_get_input(cx, vin->index, vin);
531 static int cx18_cropcap(struct file *file, void *fh,
532 struct v4l2_cropcap *cropcap)
534 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
536 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
538 cropcap->bounds.top = cropcap->bounds.left = 0;
539 cropcap->bounds.width = 720;
540 cropcap->bounds.height = cx->is_50hz ? 576 : 480;
541 cropcap->pixelaspect.numerator = cx->is_50hz ? 59 : 10;
542 cropcap->pixelaspect.denominator = cx->is_50hz ? 54 : 11;
543 cropcap->defrect = cropcap->bounds;
547 static int cx18_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
549 struct cx18_open_id *id = fh;
550 struct cx18 *cx = id->cx;
553 ret = v4l2_prio_check(&cx->prio, id->prio);
557 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
559 CX18_DEBUG_WARN("VIDIOC_S_CROP not implemented\n");
563 static int cx18_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
565 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
567 if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
569 CX18_DEBUG_WARN("VIDIOC_G_CROP not implemented\n");
573 static int cx18_enum_fmt_vid_cap(struct file *file, void *fh,
574 struct v4l2_fmtdesc *fmt)
576 static struct v4l2_fmtdesc formats[] = {
577 { 0, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0,
578 "HM12 (YUV 4:1:1)", V4L2_PIX_FMT_HM12, { 0, 0, 0, 0 }
580 { 1, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FMT_FLAG_COMPRESSED,
581 "MPEG", V4L2_PIX_FMT_MPEG, { 0, 0, 0, 0 }
587 *fmt = formats[fmt->index];
591 static int cx18_g_input(struct file *file, void *fh, unsigned int *i)
593 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
595 *i = cx->active_input;
599 int cx18_s_input(struct file *file, void *fh, unsigned int inp)
601 struct cx18_open_id *id = fh;
602 struct cx18 *cx = id->cx;
605 ret = v4l2_prio_check(&cx->prio, id->prio);
609 if (inp >= cx->nof_inputs)
612 if (inp == cx->active_input) {
613 CX18_DEBUG_INFO("Input unchanged\n");
617 CX18_DEBUG_INFO("Changing input from %d to %d\n",
618 cx->active_input, inp);
620 cx->active_input = inp;
621 /* Set the audio input to whatever is appropriate for the input type. */
622 cx->audio_input = cx->card->video_inputs[inp].audio_index;
624 /* prevent others from messing with the streams until
625 we're finished changing inputs. */
627 cx18_video_set_io(cx);
628 cx18_audio_set_io(cx);
633 static int cx18_g_frequency(struct file *file, void *fh,
634 struct v4l2_frequency *vf)
636 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
641 cx18_call_all(cx, tuner, g_frequency, vf);
645 int cx18_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
647 struct cx18_open_id *id = fh;
648 struct cx18 *cx = id->cx;
651 ret = v4l2_prio_check(&cx->prio, id->prio);
659 CX18_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
660 cx18_call_all(cx, tuner, s_frequency, vf);
665 static int cx18_g_std(struct file *file, void *fh, v4l2_std_id *std)
667 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
673 int cx18_s_std(struct file *file, void *fh, v4l2_std_id *std)
675 struct cx18_open_id *id = fh;
676 struct cx18 *cx = id->cx;
679 ret = v4l2_prio_check(&cx->prio, id->prio);
683 if ((*std & V4L2_STD_ALL) == 0)
689 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ||
690 atomic_read(&cx->ana_capturing) > 0) {
691 /* Switching standard would turn off the radio or mess
692 with already running streams, prevent that by
698 cx->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
699 cx->params.is_50hz = cx->is_50hz = !cx->is_60hz;
700 cx->params.width = 720;
701 cx->params.height = cx->is_50hz ? 576 : 480;
702 cx->vbi.count = cx->is_50hz ? 18 : 12;
703 cx->vbi.start[0] = cx->is_50hz ? 6 : 10;
704 cx->vbi.start[1] = cx->is_50hz ? 318 : 273;
705 CX18_DEBUG_INFO("Switching standard to %llx.\n",
706 (unsigned long long) cx->std);
709 cx18_call_all(cx, core, s_std, cx->std);
713 static int cx18_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
715 struct cx18_open_id *id = fh;
716 struct cx18 *cx = id->cx;
719 ret = v4l2_prio_check(&cx->prio, id->prio);
726 cx18_call_all(cx, tuner, s_tuner, vt);
730 static int cx18_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
732 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
737 cx18_call_all(cx, tuner, g_tuner, vt);
739 if (test_bit(CX18_F_I_RADIO_USER, &cx->i_flags)) {
740 strlcpy(vt->name, "cx18 Radio Tuner", sizeof(vt->name));
741 vt->type = V4L2_TUNER_RADIO;
743 strlcpy(vt->name, "cx18 TV Tuner", sizeof(vt->name));
744 vt->type = V4L2_TUNER_ANALOG_TV;
750 static int cx18_g_sliced_vbi_cap(struct file *file, void *fh,
751 struct v4l2_sliced_vbi_cap *cap)
753 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
754 int set = cx->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
757 if (cap->type != V4L2_BUF_TYPE_SLICED_VBI_CAPTURE)
760 cap->service_set = 0;
761 for (f = 0; f < 2; f++) {
762 for (l = 0; l < 24; l++) {
763 if (valid_service_line(f, l, cx->is_50hz)) {
765 * We can find all v4l2 supported vbi services
766 * for the standard, on a valid line for the std
768 cap->service_lines[f][l] = set;
769 cap->service_set |= set;
771 cap->service_lines[f][l] = 0;
774 for (f = 0; f < 3; f++)
775 cap->reserved[f] = 0;
779 static int _cx18_process_idx_data(struct cx18_buffer *buf,
780 struct v4l2_enc_idx *idx)
782 int consumed, remaining;
783 struct v4l2_enc_idx_entry *e_idx;
784 struct cx18_enc_idx_entry *e_buf;
786 /* Frame type lookup: 1=I, 2=P, 4=B */
787 const int mapping[8] = {
788 -1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
789 -1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
793 * Assumption here is that a buf holds an integral number of
794 * struct cx18_enc_idx_entry objects and is properly aligned.
795 * This is enforced by the module options on IDX buffer sizes.
797 remaining = buf->bytesused - buf->readpos;
799 e_idx = &idx->entry[idx->entries];
800 e_buf = (struct cx18_enc_idx_entry *) &buf->buf[buf->readpos];
802 while (remaining >= sizeof(struct cx18_enc_idx_entry) &&
803 idx->entries < V4L2_ENC_IDX_ENTRIES) {
805 e_idx->offset = (((u64) le32_to_cpu(e_buf->offset_high)) << 32)
806 | le32_to_cpu(e_buf->offset_low);
808 e_idx->pts = (((u64) (le32_to_cpu(e_buf->pts_high) & 1)) << 32)
809 | le32_to_cpu(e_buf->pts_low);
811 e_idx->length = le32_to_cpu(e_buf->length);
813 e_idx->flags = mapping[le32_to_cpu(e_buf->flags) & 0x7];
815 e_idx->reserved[0] = 0;
816 e_idx->reserved[1] = 0;
819 e_idx = &idx->entry[idx->entries];
822 remaining -= sizeof(struct cx18_enc_idx_entry);
823 consumed += sizeof(struct cx18_enc_idx_entry);
826 /* Swallow any partial entries at the end, if there are any */
827 if (remaining > 0 && remaining < sizeof(struct cx18_enc_idx_entry))
828 consumed += remaining;
830 buf->readpos += consumed;
834 static int cx18_process_idx_data(struct cx18_stream *s, struct cx18_mdl *mdl,
835 struct v4l2_enc_idx *idx)
837 if (s->type != CX18_ENC_STREAM_TYPE_IDX)
840 if (mdl->curr_buf == NULL)
841 mdl->curr_buf = list_first_entry(&mdl->buf_list,
842 struct cx18_buffer, list);
844 if (list_entry_is_past_end(mdl->curr_buf, &mdl->buf_list, list)) {
846 * For some reason we've exhausted the buffers, but the MDL
847 * object still said some data was unread.
848 * Fix that and bail out.
850 mdl->readpos = mdl->bytesused;
854 list_for_each_entry_from(mdl->curr_buf, &mdl->buf_list, list) {
856 /* Skip any empty buffers in the MDL */
857 if (mdl->curr_buf->readpos >= mdl->curr_buf->bytesused)
860 mdl->readpos += _cx18_process_idx_data(mdl->curr_buf, idx);
862 /* exit when MDL drained or request satisfied */
863 if (idx->entries >= V4L2_ENC_IDX_ENTRIES ||
864 mdl->curr_buf->readpos < mdl->curr_buf->bytesused ||
865 mdl->readpos >= mdl->bytesused)
871 static int cx18_g_enc_index(struct file *file, void *fh,
872 struct v4l2_enc_idx *idx)
874 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
875 struct cx18_stream *s = &cx->streams[CX18_ENC_STREAM_TYPE_IDX];
877 struct cx18_mdl *mdl;
879 if (!cx18_stream_enabled(s)) /* Module options inhibited IDX stream */
882 /* Compute the best case number of entries we can buffer */
884 s->bufs_per_mdl * CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN;
887 tmp = tmp * s->buf_size / sizeof(struct cx18_enc_idx_entry);
889 /* Fill out the header of the return structure */
891 idx->entries_cap = tmp;
892 memset(idx->reserved, 0, sizeof(idx->reserved));
894 /* Pull IDX MDLs and buffers from q_full and populate the entries */
896 mdl = cx18_dequeue(s, &s->q_full);
897 if (mdl == NULL) /* No more IDX data right now */
900 /* Extract the Index entry data from the MDL and buffers */
901 cx18_process_idx_data(s, mdl, idx);
902 if (mdl->readpos < mdl->bytesused) {
903 /* We finished with data remaining, push the MDL back */
904 cx18_push(s, mdl, &s->q_full);
908 /* We drained this MDL, schedule it to go to the firmware */
909 cx18_enqueue(s, mdl, &s->q_free);
911 } while (idx->entries < V4L2_ENC_IDX_ENTRIES);
913 /* Tell the work handler to send free IDX MDLs to the firmware */
914 cx18_stream_load_fw_queue(s);
918 static int cx18_encoder_cmd(struct file *file, void *fh,
919 struct v4l2_encoder_cmd *enc)
921 struct cx18_open_id *id = fh;
922 struct cx18 *cx = id->cx;
926 case V4L2_ENC_CMD_START:
927 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
929 return cx18_start_capture(id);
931 case V4L2_ENC_CMD_STOP:
932 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
933 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
934 cx18_stop_capture(id,
935 enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
938 case V4L2_ENC_CMD_PAUSE:
939 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
941 if (!atomic_read(&cx->ana_capturing))
943 if (test_and_set_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
945 h = cx18_find_handle(cx);
946 if (h == CX18_INVALID_TASK_HANDLE) {
947 CX18_ERR("Can't find valid task handle for "
948 "V4L2_ENC_CMD_PAUSE\n");
952 cx18_vapi(cx, CX18_CPU_CAPTURE_PAUSE, 1, h);
955 case V4L2_ENC_CMD_RESUME:
956 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
958 if (!atomic_read(&cx->ana_capturing))
960 if (!test_and_clear_bit(CX18_F_I_ENC_PAUSED, &cx->i_flags))
962 h = cx18_find_handle(cx);
963 if (h == CX18_INVALID_TASK_HANDLE) {
964 CX18_ERR("Can't find valid task handle for "
965 "V4L2_ENC_CMD_RESUME\n");
968 cx18_vapi(cx, CX18_CPU_CAPTURE_RESUME, 1, h);
973 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
979 static int cx18_try_encoder_cmd(struct file *file, void *fh,
980 struct v4l2_encoder_cmd *enc)
982 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
985 case V4L2_ENC_CMD_START:
986 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
990 case V4L2_ENC_CMD_STOP:
991 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
992 enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
995 case V4L2_ENC_CMD_PAUSE:
996 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
1000 case V4L2_ENC_CMD_RESUME:
1001 CX18_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
1006 CX18_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
1012 static int cx18_log_status(struct file *file, void *fh)
1014 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
1015 struct v4l2_input vidin;
1016 struct v4l2_audio audin;
1019 CX18_INFO("================= START STATUS CARD #%d "
1020 "=================\n", cx->instance);
1021 CX18_INFO("Version: %s Card: %s\n", CX18_VERSION, cx->card_name);
1022 if (cx->hw_flags & CX18_HW_TVEEPROM) {
1025 cx18_read_eeprom(cx, &tv);
1027 cx18_call_all(cx, core, log_status);
1028 cx18_get_input(cx, cx->active_input, &vidin);
1029 cx18_get_audio_input(cx, cx->audio_input, &audin);
1030 CX18_INFO("Video Input: %s\n", vidin.name);
1031 CX18_INFO("Audio Input: %s\n", audin.name);
1032 mutex_lock(&cx->gpio_lock);
1033 CX18_INFO("GPIO: direction 0x%08x, value 0x%08x\n",
1034 cx->gpio_dir, cx->gpio_val);
1035 mutex_unlock(&cx->gpio_lock);
1036 CX18_INFO("Tuner: %s\n",
1037 test_bit(CX18_F_I_RADIO_USER, &cx->i_flags) ? "Radio" : "TV");
1038 cx2341x_log_status(&cx->params, cx->v4l2_dev.name);
1039 CX18_INFO("Status flags: 0x%08lx\n", cx->i_flags);
1040 for (i = 0; i < CX18_MAX_STREAMS; i++) {
1041 struct cx18_stream *s = &cx->streams[i];
1043 if (s->video_dev == NULL || s->buffers == 0)
1045 CX18_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n",
1046 s->name, s->s_flags,
1047 atomic_read(&s->q_full.depth) * s->bufs_per_mdl * 100
1049 (s->buffers * s->buf_size) / 1024, s->buffers);
1051 CX18_INFO("Read MPEG/VBI: %lld/%lld bytes\n",
1052 (long long)cx->mpg_data_received,
1053 (long long)cx->vbi_data_inserted);
1054 CX18_INFO("================== END STATUS CARD #%d "
1055 "==================\n", cx->instance);
1059 static long cx18_default(struct file *file, void *fh, int cmd, void *arg)
1061 struct cx18 *cx = ((struct cx18_open_id *)fh)->cx;
1064 case VIDIOC_INT_RESET: {
1065 u32 val = *(u32 *)arg;
1067 if ((val == 0) || (val & 0x01))
1068 cx18_call_hw(cx, CX18_HW_GPIO_RESET_CTRL, core, reset,
1069 (u32) CX18_GPIO_RESET_Z8F0811);
1079 long cx18_v4l2_ioctl(struct file *filp, unsigned int cmd,
1082 struct video_device *vfd = video_devdata(filp);
1083 struct cx18_open_id *id = filp->private_data;
1084 struct cx18 *cx = id->cx;
1087 mutex_lock(&cx->serialize_lock);
1089 /* FIXME - consolidate v4l2_prio_check()'s here */
1091 if (cx18_debug & CX18_DBGFLG_IOCTL)
1092 vfd->debug = V4L2_DEBUG_IOCTL | V4L2_DEBUG_IOCTL_ARG;
1093 res = video_ioctl2(filp, cmd, arg);
1095 mutex_unlock(&cx->serialize_lock);
1099 static const struct v4l2_ioctl_ops cx18_ioctl_ops = {
1100 .vidioc_querycap = cx18_querycap,
1101 .vidioc_g_priority = cx18_g_priority,
1102 .vidioc_s_priority = cx18_s_priority,
1103 .vidioc_s_audio = cx18_s_audio,
1104 .vidioc_g_audio = cx18_g_audio,
1105 .vidioc_enumaudio = cx18_enumaudio,
1106 .vidioc_enum_input = cx18_enum_input,
1107 .vidioc_cropcap = cx18_cropcap,
1108 .vidioc_s_crop = cx18_s_crop,
1109 .vidioc_g_crop = cx18_g_crop,
1110 .vidioc_g_input = cx18_g_input,
1111 .vidioc_s_input = cx18_s_input,
1112 .vidioc_g_frequency = cx18_g_frequency,
1113 .vidioc_s_frequency = cx18_s_frequency,
1114 .vidioc_s_tuner = cx18_s_tuner,
1115 .vidioc_g_tuner = cx18_g_tuner,
1116 .vidioc_g_enc_index = cx18_g_enc_index,
1117 .vidioc_g_std = cx18_g_std,
1118 .vidioc_s_std = cx18_s_std,
1119 .vidioc_log_status = cx18_log_status,
1120 .vidioc_enum_fmt_vid_cap = cx18_enum_fmt_vid_cap,
1121 .vidioc_encoder_cmd = cx18_encoder_cmd,
1122 .vidioc_try_encoder_cmd = cx18_try_encoder_cmd,
1123 .vidioc_g_fmt_vid_cap = cx18_g_fmt_vid_cap,
1124 .vidioc_g_fmt_vbi_cap = cx18_g_fmt_vbi_cap,
1125 .vidioc_g_fmt_sliced_vbi_cap = cx18_g_fmt_sliced_vbi_cap,
1126 .vidioc_s_fmt_vid_cap = cx18_s_fmt_vid_cap,
1127 .vidioc_s_fmt_vbi_cap = cx18_s_fmt_vbi_cap,
1128 .vidioc_s_fmt_sliced_vbi_cap = cx18_s_fmt_sliced_vbi_cap,
1129 .vidioc_try_fmt_vid_cap = cx18_try_fmt_vid_cap,
1130 .vidioc_try_fmt_vbi_cap = cx18_try_fmt_vbi_cap,
1131 .vidioc_try_fmt_sliced_vbi_cap = cx18_try_fmt_sliced_vbi_cap,
1132 .vidioc_g_sliced_vbi_cap = cx18_g_sliced_vbi_cap,
1133 .vidioc_g_chip_ident = cx18_g_chip_ident,
1134 #ifdef CONFIG_VIDEO_ADV_DEBUG
1135 .vidioc_g_register = cx18_g_register,
1136 .vidioc_s_register = cx18_s_register,
1138 .vidioc_default = cx18_default,
1139 .vidioc_queryctrl = cx18_queryctrl,
1140 .vidioc_querymenu = cx18_querymenu,
1141 .vidioc_g_ext_ctrls = cx18_g_ext_ctrls,
1142 .vidioc_s_ext_ctrls = cx18_s_ext_ctrls,
1143 .vidioc_try_ext_ctrls = cx18_try_ext_ctrls,
1146 void cx18_set_funcs(struct video_device *vdev)
1148 vdev->ioctl_ops = &cx18_ioctl_ops;