2 * Copyright (c) 2014 Philippe De Muyter <phdm@macqel.be>
3 * Copyright (c) 2014 William Manley <will@williammanley.net>
4 * Copyright (c) 2011 Peter Zotov <whitequark@whitequark.org>
5 * Copyright (c) 2014-2017 The strace developers.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <linux/ioctl.h>
35 #include <linux/types.h>
36 #include <linux/videodev2.h>
38 #include DEF_MPERS_TYPE(struct_v4l2_buffer)
39 #include DEF_MPERS_TYPE(struct_v4l2_clip)
40 #ifdef VIDIOC_CREATE_BUFS
41 # include DEF_MPERS_TYPE(struct_v4l2_create_buffers)
43 #include DEF_MPERS_TYPE(struct_v4l2_ext_control)
44 #include DEF_MPERS_TYPE(struct_v4l2_ext_controls)
45 #include DEF_MPERS_TYPE(struct_v4l2_format)
46 #include DEF_MPERS_TYPE(struct_v4l2_framebuffer)
47 #include DEF_MPERS_TYPE(struct_v4l2_input)
48 #include DEF_MPERS_TYPE(struct_v4l2_standard)
50 typedef struct v4l2_buffer struct_v4l2_buffer;
51 typedef struct v4l2_clip struct_v4l2_clip;
52 #ifdef VIDIOC_CREATE_BUFS
53 typedef struct v4l2_create_buffers struct_v4l2_create_buffers;
55 typedef struct v4l2_ext_control struct_v4l2_ext_control;
56 typedef struct v4l2_ext_controls struct_v4l2_ext_controls;
57 typedef struct v4l2_format struct_v4l2_format;
58 typedef struct v4l2_framebuffer struct_v4l2_framebuffer;
59 typedef struct v4l2_input struct_v4l2_input;
60 typedef struct v4l2_standard struct_v4l2_standard;
64 #include "print_fields.h"
67 /* some historical constants */
68 #ifndef V4L2_CID_HCENTER
69 #define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
71 #ifndef V4L2_CID_VCENTER
72 #define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
74 #ifndef V4L2_CID_BAND_STOP_FILTER
75 #define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33)
78 #define FMT_FRACT "%u/%u"
79 #define ARGS_FRACT(x) ((x).numerator), ((x).denominator)
81 #define FMT_RECT "{left=%d, top=%d, width=%u, height=%u}"
82 #define ARGS_RECT(x) (x).left, (x).top, (x).width, (x).height
85 print_pixelformat(uint32_t fourcc)
89 unsigned char cc[sizeof(uint32_t)];
93 (unsigned char) (fourcc >> 24),
94 (unsigned char) (fourcc >> 16),
95 (unsigned char) (fourcc >> 8),
96 (unsigned char) fourcc
104 tprints("v4l2_fourcc(");
105 for (i = 0; i < sizeof(u.cc); ++i) {
106 unsigned char c = u.cc[i];
110 if (c == '\'' || c == '\\') {
119 } else if (c >= ' ' && c <= 0x7e) {
132 "0123456789abcdef"[c >> 4],
133 "0123456789abcdef"[c & 0xf],
143 #include "xlat/v4l2_device_capabilities_flags.h"
146 print_v4l2_capability(struct tcb *const tcp, const kernel_ulong_t arg)
148 struct v4l2_capability caps;
153 if (umove_or_printaddr(tcp, arg, &caps))
154 return RVAL_IOCTL_DECODED;
155 PRINT_FIELD_CSTRING("{", caps, driver);
156 PRINT_FIELD_CSTRING(", ", caps, card);
157 PRINT_FIELD_CSTRING(", ", caps, bus_info);
158 tprintf(", version=%u.%u.%u, capabilities=",
159 (caps.version >> 16) & 0xFF,
160 (caps.version >> 8) & 0xFF,
161 caps.version & 0xFF);
162 printflags(v4l2_device_capabilities_flags, caps.capabilities,
164 #ifdef V4L2_CAP_DEVICE_CAPS
165 tprints(", device_caps=");
166 printflags(v4l2_device_capabilities_flags, caps.device_caps,
170 return RVAL_IOCTL_DECODED;
173 #include "xlat/v4l2_buf_types.h"
174 #include "xlat/v4l2_format_description_flags.h"
177 print_v4l2_fmtdesc(struct tcb *const tcp, const kernel_ulong_t arg)
179 struct v4l2_fmtdesc f;
183 if (umove_or_printaddr(tcp, arg, &f))
184 return RVAL_IOCTL_DECODED;
185 tprintf("{index=%u, type=", f.index);
186 printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
190 if (!syserror(tcp) && !umove(tcp, arg, &f)) {
192 printflags(v4l2_format_description_flags, f.flags,
193 "V4L2_FMT_FLAG_???");
194 PRINT_FIELD_CSTRING(", ", f, description);
195 tprints(", pixelformat=");
196 print_pixelformat(f.pixelformat);
199 return RVAL_IOCTL_DECODED;
202 #include "xlat/v4l2_fields.h"
203 #include "xlat/v4l2_colorspaces.h"
204 #include "xlat/v4l2_vbi_flags.h"
205 #include "xlat/v4l2_sliced_flags.h"
208 print_v4l2_clip(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
210 const struct_v4l2_clip *p = elem_buf;
211 tprintf(FMT_RECT, ARGS_RECT(p->c));
216 print_v4l2_format_fmt(struct tcb *const tcp, const char *prefix,
217 const struct_v4l2_format *f)
221 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
222 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
224 tprintf("fmt.pix={width=%u, height=%u, pixelformat=",
225 f->fmt.pix.width, f->fmt.pix.height);
226 print_pixelformat(f->fmt.pix.pixelformat);
228 printxval(v4l2_fields, f->fmt.pix.field, "V4L2_FIELD_???");
229 tprintf(", bytesperline=%u, sizeimage=%u, colorspace=",
230 f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
231 printxval(v4l2_colorspaces, f->fmt.pix.colorspace,
232 "V4L2_COLORSPACE_???");
235 #if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
236 case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
237 case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: {
241 tprintf("fmt.pix_mp={width=%u, height=%u, pixelformat=",
242 f->fmt.pix_mp.width, f->fmt.pix_mp.height);
243 print_pixelformat(f->fmt.pix_mp.pixelformat);
245 printxval(v4l2_fields, f->fmt.pix_mp.field, "V4L2_FIELD_???");
246 tprints(", colorspace=");
247 printxval(v4l2_colorspaces, f->fmt.pix_mp.colorspace,
248 "V4L2_COLORSPACE_???");
249 tprints(", plane_fmt=[");
250 max = f->fmt.pix_mp.num_planes;
251 if (max > VIDEO_MAX_PLANES)
252 max = VIDEO_MAX_PLANES;
253 for (i = 0; i < max; i++) {
256 tprintf("{sizeimage=%u, bytesperline=%u}",
257 f->fmt.pix_mp.plane_fmt[i].sizeimage,
258 f->fmt.pix_mp.plane_fmt[i].bytesperline);
260 tprintf("], num_planes=%u}",
261 (unsigned) f->fmt.pix_mp.num_planes);
265 /* OUTPUT_OVERLAY since Linux v2.6.22-rc1~1118^2~179 */
266 #if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
267 case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
269 case V4L2_BUF_TYPE_VIDEO_OVERLAY: {
270 struct_v4l2_clip clip;
272 tprintf("fmt.win={left=%d, top=%d, width=%u, height=%u, field=",
273 ARGS_RECT(f->fmt.win.w));
274 printxval(v4l2_fields, f->fmt.win.field, "V4L2_FIELD_???");
275 tprintf(", chromakey=%#x, clips=", f->fmt.win.chromakey);
276 ret = print_array(tcp, ptr_to_kulong(f->fmt.win.clips),
277 f->fmt.win.clipcount, &clip, sizeof(clip),
278 umoven_or_printaddr, print_v4l2_clip, 0);
279 tprintf(", clipcount=%u, bitmap=", f->fmt.win.clipcount);
280 printaddr(ptr_to_kulong(f->fmt.win.bitmap));
281 #ifdef HAVE_STRUCT_V4L2_WINDOW_GLOBAL_ALPHA
282 tprintf(", global_alpha=%#x", f->fmt.win.global_alpha);
287 case V4L2_BUF_TYPE_VBI_CAPTURE:
288 case V4L2_BUF_TYPE_VBI_OUTPUT:
290 tprintf("fmt.vbi={sampling_rate=%u, offset=%u, "
291 "samples_per_line=%u, sample_format=",
292 f->fmt.vbi.sampling_rate, f->fmt.vbi.offset,
293 f->fmt.vbi.samples_per_line);
294 print_pixelformat(f->fmt.vbi.sample_format);
295 tprintf(", start=[%u, %u], count=[%u, %u], ",
296 f->fmt.vbi.start[0], f->fmt.vbi.start[1],
297 f->fmt.vbi.count[0], f->fmt.vbi.count[1]);
299 printxval(v4l2_vbi_flags, f->fmt.vbi.flags, "V4L2_VBI_???");
302 /* both since Linux v2.6.14-rc2~64 */
303 #if HAVE_DECL_V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
304 case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
305 case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: {
309 tprints("fmt.sliced={service_set=");
310 printxval(v4l2_sliced_flags, f->fmt.sliced.service_set,
312 tprintf(", io_size=%u, service_lines=[",
313 f->fmt.sliced.io_size);
314 for (i = 0; i < ARRAY_SIZE(f->fmt.sliced.service_lines); i++) {
319 j < ARRAY_SIZE(f->fmt.sliced.service_lines[0]);
324 f->fmt.sliced.service_lines[i][j]);
332 /* since Linux v4.4-rc1~118^2~14 */
333 #if HAVE_DECL_V4L2_BUF_TYPE_SDR_OUTPUT
334 case V4L2_BUF_TYPE_SDR_OUTPUT:
336 /* since Linux v3.15-rc1~85^2~213 */
337 #if HAVE_DECL_V4L2_BUF_TYPE_SDR_CAPTURE
338 case V4L2_BUF_TYPE_SDR_CAPTURE:
340 tprints("fmt.sdr={pixelformat=");
341 print_pixelformat(f->fmt.sdr.pixelformat);
342 #ifdef HAVE_STRUCT_V4L2_SDR_FORMAT_BUFFERSIZE
343 tprintf(", buffersize=%u",
344 f->fmt.sdr.buffersize);
354 print_v4l2_format(struct tcb *const tcp, const kernel_ulong_t arg,
357 struct_v4l2_format f;
361 if (umove_or_printaddr(tcp, arg, &f))
362 return RVAL_IOCTL_DECODED;
364 printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
367 if (!print_v4l2_format_fmt(tcp, ", ", &f)) {
369 return RVAL_IOCTL_DECODED;
375 if (!syserror(tcp) && !umove(tcp, arg, &f))
376 print_v4l2_format_fmt(tcp, is_get ? ", " : " => ", &f);
380 return RVAL_IOCTL_DECODED;
383 #include "xlat/v4l2_memories.h"
386 print_v4l2_requestbuffers(struct tcb *const tcp, const kernel_ulong_t arg)
388 struct v4l2_requestbuffers reqbufs;
393 if (umove_or_printaddr(tcp, arg, &reqbufs))
394 return RVAL_IOCTL_DECODED;
397 printxval(v4l2_buf_types, reqbufs.type, "V4L2_BUF_TYPE_???");
398 tprints(", memory=");
399 printxval(v4l2_memories, reqbufs.memory, "V4L2_MEMORY_???");
400 tprintf(", count=%u", reqbufs.count);
405 if (!syserror(tcp)) {
408 if (!umove(tcp, arg, &reqbufs))
409 tprintf("%u", reqbufs.count);
416 return RVAL_IOCTL_DECODED;
419 #include "xlat/v4l2_buf_flags.h"
422 print_v4l2_buffer(struct tcb *const tcp, const unsigned int code,
423 const kernel_ulong_t arg)
425 struct_v4l2_buffer b;
429 if (umove_or_printaddr(tcp, arg, &b))
430 return RVAL_IOCTL_DECODED;
432 printxval(v4l2_buf_types, b.type, "V4L2_BUF_TYPE_???");
433 if (code != VIDIOC_DQBUF)
434 tprintf(", index=%u", b.index);
439 if (!syserror(tcp) && !umove(tcp, arg, &b)) {
440 if (code == VIDIOC_DQBUF)
441 tprintf(", index=%u", b.index);
442 tprints(", memory=");
443 printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
445 if (b.memory == V4L2_MEMORY_MMAP) {
446 tprintf(", m.offset=%#x", b.m.offset);
447 } else if (b.memory == V4L2_MEMORY_USERPTR) {
448 tprints(", m.userptr=");
449 printaddr(b.m.userptr);
452 tprintf(", length=%u, bytesused=%u, flags=",
453 b.length, b.bytesused);
454 printflags(v4l2_buf_flags, b.flags, "V4L2_BUF_FLAG_???");
455 if (code == VIDIOC_DQBUF) {
456 tprints(", timestamp = ");
457 MPERS_FUNC_NAME(print_struct_timeval)(&b.timestamp);
464 return RVAL_IOCTL_DECODED;
468 print_v4l2_framebuffer(struct tcb *const tcp, const kernel_ulong_t arg)
470 struct_v4l2_framebuffer b;
473 if (!umove_or_printaddr(tcp, arg, &b)) {
474 tprintf("{capability=%#x, flags=%#x, base=",
475 b.capability, b.flags);
476 printaddr(ptr_to_kulong(b.base));
480 return RVAL_IOCTL_DECODED;
484 print_v4l2_buf_type(struct tcb *const tcp, const kernel_ulong_t arg)
489 if (!umove_or_printaddr(tcp, arg, &type)) {
491 printxval(v4l2_buf_types, type, "V4L2_BUF_TYPE_???");
494 return RVAL_IOCTL_DECODED;
497 #include "xlat/v4l2_streaming_capabilities.h"
498 #include "xlat/v4l2_capture_modes.h"
501 print_v4l2_streamparm(struct tcb *const tcp, const kernel_ulong_t arg,
504 struct v4l2_streamparm s;
508 if (umove_or_printaddr(tcp, arg, &s))
509 return RVAL_IOCTL_DECODED;
511 printxval(v4l2_buf_types, s.type, "V4L2_BUF_TYPE_???");
513 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
514 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
521 return RVAL_IOCTL_DECODED;
524 if (syserror(tcp) || umove(tcp, arg, &s) < 0) {
526 return RVAL_IOCTL_DECODED;
528 tprints(is_get ? ", " : " => ");
531 if (s.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
532 tprints("parm.capture={capability=");
533 printflags(v4l2_streaming_capabilities,
534 s.parm.capture.capability, "V4L2_CAP_???");
536 tprints(", capturemode=");
537 printflags(v4l2_capture_modes,
538 s.parm.capture.capturemode, "V4L2_MODE_???");
540 tprintf(", timeperframe=" FMT_FRACT,
541 ARGS_FRACT(s.parm.capture.timeperframe));
543 tprintf(", extendedmode=%u, readbuffers=%u}",
544 s.parm.capture.extendedmode,
545 s.parm.capture.readbuffers);
547 tprints("parm.output={capability=");
548 printflags(v4l2_streaming_capabilities,
549 s.parm.output.capability, "V4L2_CAP_???");
551 tprintf(", outputmode=%u", s.parm.output.outputmode);
553 tprintf(", timeperframe=" FMT_FRACT,
554 ARGS_FRACT(s.parm.output.timeperframe));
556 tprintf(", extendedmode=%u, writebuffers=%u}",
557 s.parm.output.extendedmode,
558 s.parm.output.writebuffers);
564 return RVAL_IOCTL_DECODED;
569 print_v4l2_standard(struct tcb *const tcp, const kernel_ulong_t arg)
571 struct_v4l2_standard s;
575 if (umove_or_printaddr(tcp, arg, &s))
576 return RVAL_IOCTL_DECODED;
577 tprintf("{index=%u", s.index);
582 if (!syserror(tcp) && !umove(tcp, arg, &s)) {
583 PRINT_FIELD_CSTRING(", ", s, name);
584 tprintf(", frameperiod=" FMT_FRACT,
585 ARGS_FRACT(s.frameperiod));
586 tprintf(", framelines=%d", s.framelines);
591 return RVAL_IOCTL_DECODED;
594 #include "xlat/v4l2_input_types.h"
597 print_v4l2_input(struct tcb *const tcp, const kernel_ulong_t arg)
603 if (umove_or_printaddr(tcp, arg, &i))
604 return RVAL_IOCTL_DECODED;
605 tprintf("{index=%u", i.index);
610 if (!syserror(tcp) && !umove(tcp, arg, &i)) {
611 PRINT_FIELD_CSTRING(", ", i, name);
613 printxval(v4l2_input_types, i.type, "V4L2_INPUT_TYPE_???");
618 return RVAL_IOCTL_DECODED;
621 #include "xlat/v4l2_control_ids.h"
624 print_v4l2_control(struct tcb *const tcp, const kernel_ulong_t arg,
627 struct v4l2_control c;
631 if (umove_or_printaddr(tcp, arg, &c))
632 return RVAL_IOCTL_DECODED;
634 printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
636 tprintf(", value=%d", c.value);
640 if (!syserror(tcp) && !umove(tcp, arg, &c)) {
641 tprints(is_get ? ", " : " => ");
642 tprintf("value=%d", c.value);
647 return RVAL_IOCTL_DECODED;
650 #include "xlat/v4l2_tuner_types.h"
651 #include "xlat/v4l2_tuner_capabilities.h"
652 #include "xlat/v4l2_tuner_rxsubchanses.h"
653 #include "xlat/v4l2_tuner_audmodes.h"
656 print_v4l2_tuner(struct tcb *const tcp, const kernel_ulong_t arg,
662 if (umove_or_printaddr(tcp, arg, &c))
663 return RVAL_IOCTL_DECODED;
664 tprintf("{index=%u", c.index);
669 if (syserror(tcp) || umove(tcp, arg, &c) < 0) {
671 return RVAL_IOCTL_DECODED;
673 tprints(is_get ? ", " : " => ");
676 PRINT_FIELD_CSTRING("", c, name);
678 printxval(v4l2_tuner_types, c.type, "V4L2_TUNER_TYPE_???");
679 tprints(", capability=");
680 printxval(v4l2_tuner_capabilities, c.capability,
681 "V4L2_TUNER_CAP_???");
682 tprintf(", rangelow=%u, rangehigh=%u, rxsubchans=",
683 c.rangelow, c.rangehigh);
684 printxval(v4l2_tuner_rxsubchanses, c.rxsubchans,
685 "V4L2_TUNER_SUB_???");
686 tprints(", audmode=");
687 printxval(v4l2_tuner_audmodes, c.audmode,
688 "V4L2_TUNER_MODE_???");
689 tprintf(", signal=%d, afc=%d", c.signal, c.afc);
695 return RVAL_IOCTL_DECODED;
699 #include "xlat/v4l2_control_types.h"
700 #include "xlat/v4l2_control_flags.h"
703 print_v4l2_queryctrl(struct tcb *const tcp, const kernel_ulong_t arg)
705 struct v4l2_queryctrl c;
709 if (umove_or_printaddr(tcp, arg, &c))
710 return RVAL_IOCTL_DECODED;
713 if (syserror(tcp) || umove(tcp, arg, &c) < 0) {
715 return RVAL_IOCTL_DECODED;
717 if (get_tcb_priv_ulong(tcp))
721 if (entering(tcp) || get_tcb_priv_ulong(tcp)) {
722 #ifdef V4L2_CTRL_FLAG_NEXT_CTRL
723 const unsigned long next = c.id & V4L2_CTRL_FLAG_NEXT_CTRL;
724 set_tcb_priv_ulong(tcp, next);
726 tprints("V4L2_CTRL_FLAG_NEXT_CTRL|");
727 c.id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
730 printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
735 printxval(v4l2_control_types, c.type, "V4L2_CTRL_TYPE_???");
736 PRINT_FIELD_CSTRING(", ", c, name);
737 tprintf(", minimum=%d, maximum=%d, step=%d"
738 ", default_value=%d, flags=",
739 c.minimum, c.maximum, c.step, c.default_value);
740 printflags(v4l2_control_flags, c.flags, "V4L2_CTRL_FLAG_???");
743 return entering(tcp) ? 0 : RVAL_IOCTL_DECODED;
747 print_v4l2_cropcap(struct tcb *const tcp, const kernel_ulong_t arg)
749 struct v4l2_cropcap c;
753 if (umove_or_printaddr(tcp, arg, &c))
754 return RVAL_IOCTL_DECODED;
756 printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
761 if (!syserror(tcp) && !umove(tcp, arg, &c)) {
762 tprintf(", bounds=" FMT_RECT
763 ", defrect=" FMT_RECT
764 ", pixelaspect=" FMT_FRACT,
766 ARGS_RECT(c.defrect),
767 ARGS_FRACT(c.pixelaspect));
772 return RVAL_IOCTL_DECODED;
776 print_v4l2_crop(struct tcb *const tcp, const kernel_ulong_t arg,
783 if (umove_or_printaddr(tcp, arg, &c))
784 return RVAL_IOCTL_DECODED;
786 printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
789 tprintf(", c=" FMT_RECT, ARGS_RECT(c.c));
791 if (!syserror(tcp) && !umove(tcp, arg, &c))
792 tprintf(", c=" FMT_RECT, ARGS_RECT(c.c));
797 return RVAL_IOCTL_DECODED;
800 #ifdef VIDIOC_S_EXT_CTRLS
802 print_v4l2_ext_control(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
804 const struct_v4l2_ext_control *p = elem_buf;
807 printxval(v4l2_control_ids, p->id, "V4L2_CID_???");
808 # if HAVE_DECL_V4L2_CTRL_TYPE_STRING
809 tprintf(", size=%u", p->size);
811 tprints(", string=");
812 printstrn(tcp, ptr_to_kulong(p->string), p->size);
815 tprintf(", value=%d, value64=%" PRId64, p->value, (int64_t) p->value64);
821 #include "xlat/v4l2_control_classes.h"
824 print_v4l2_ext_controls(struct tcb *const tcp, const kernel_ulong_t arg,
827 struct_v4l2_ext_controls c;
831 if (umove_or_printaddr(tcp, arg, &c))
832 return RVAL_IOCTL_DECODED;
833 tprints("{ctrl_class=");
834 printxval(v4l2_control_classes, c.ctrl_class,
835 "V4L2_CTRL_CLASS_???");
836 tprintf(", count=%u", c.count);
839 return RVAL_IOCTL_DECODED;
845 if (umove(tcp, arg, &c) < 0) {
847 return RVAL_IOCTL_DECODED;
849 tprints(is_get ? ", " : " => ");
852 tprints("controls=");
853 struct_v4l2_ext_control ctrl;
854 bool fail = !print_array(tcp, ptr_to_kulong(c.controls), c.count,
856 umoven_or_printaddr_ignore_syserror,
857 print_v4l2_ext_control, 0);
859 if (exiting(tcp) && syserror(tcp))
860 tprintf(", error_idx=%u", c.error_idx);
862 if (exiting(tcp) || fail) {
864 return RVAL_IOCTL_DECODED;
870 #endif /* VIDIOC_S_EXT_CTRLS */
872 #ifdef VIDIOC_ENUM_FRAMESIZES
873 # include "xlat/v4l2_framesize_types.h"
876 print_v4l2_frmsizeenum(struct tcb *const tcp, const kernel_ulong_t arg)
878 struct v4l2_frmsizeenum s;
882 if (umove_or_printaddr(tcp, arg, &s))
883 return RVAL_IOCTL_DECODED;
884 tprintf("{index=%u, pixel_format=", s.index);
885 print_pixelformat(s.pixel_format);
889 if (!syserror(tcp) && !umove(tcp, arg, &s)) {
891 printxval(v4l2_framesize_types, s.type, "V4L2_FRMSIZE_TYPE_???");
893 case V4L2_FRMSIZE_TYPE_DISCRETE:
894 tprintf(", discrete={width=%u, height=%u}",
895 s.discrete.width, s.discrete.height);
897 case V4L2_FRMSIZE_TYPE_STEPWISE:
898 tprintf(", stepwise={min_width=%u, max_width=%u, "
899 "step_width=%u, min_height=%u, max_height=%u, "
901 s.stepwise.min_width, s.stepwise.max_width,
902 s.stepwise.step_width, s.stepwise.min_height,
903 s.stepwise.max_height, s.stepwise.step_height);
908 return RVAL_IOCTL_DECODED;
910 #endif /* VIDIOC_ENUM_FRAMESIZES */
912 #ifdef VIDIOC_ENUM_FRAMEINTERVALS
913 # include "xlat/v4l2_frameinterval_types.h"
916 print_v4l2_frmivalenum(struct tcb *const tcp, const kernel_ulong_t arg)
918 struct v4l2_frmivalenum f;
922 if (umove_or_printaddr(tcp, arg, &f))
923 return RVAL_IOCTL_DECODED;
924 tprintf("{index=%u, pixel_format=", f.index);
925 print_pixelformat(f.pixel_format);
926 tprintf(", width=%u, height=%u", f.width, f.height);
930 if (!syserror(tcp) && !umove(tcp, arg, &f)) {
932 printxval(v4l2_frameinterval_types, f.type,
933 "V4L2_FRMIVAL_TYPE_???");
935 case V4L2_FRMIVAL_TYPE_DISCRETE:
936 tprintf(", discrete=" FMT_FRACT,
937 ARGS_FRACT(f.discrete));
939 case V4L2_FRMIVAL_TYPE_STEPWISE:
940 case V4L2_FRMSIZE_TYPE_CONTINUOUS:
941 tprintf(", stepwise={min=" FMT_FRACT ", max="
942 FMT_FRACT ", step=" FMT_FRACT "}",
943 ARGS_FRACT(f.stepwise.min),
944 ARGS_FRACT(f.stepwise.max),
945 ARGS_FRACT(f.stepwise.step));
952 return RVAL_IOCTL_DECODED;
954 #endif /* VIDIOC_ENUM_FRAMEINTERVALS */
956 #ifdef VIDIOC_CREATE_BUFS
958 print_v4l2_create_buffers(struct tcb *const tcp, const kernel_ulong_t arg)
960 static const char fmt[] = "{index=%u, count=%u}";
961 static char outstr[sizeof(fmt) + sizeof(int) * 6];
963 struct_v4l2_create_buffers b;
967 if (umove_or_printaddr(tcp, arg, &b))
968 return RVAL_IOCTL_DECODED;
969 tprintf("{count=%u, memory=", b.count);
970 printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
971 tprints(", format={type=");
972 printxval(v4l2_buf_types, b.format.type,
973 "V4L2_BUF_TYPE_???");
974 print_v4l2_format_fmt(tcp, ", ",
975 (struct_v4l2_format *) &b.format);
980 if (syserror(tcp) || umove(tcp, arg, &b))
981 return RVAL_IOCTL_DECODED;
983 xsprintf(outstr, fmt, b.index, b.count);
984 tcp->auxstr = outstr;
986 return RVAL_IOCTL_DECODED | RVAL_STR;
988 #endif /* VIDIOC_CREATE_BUFS */
990 MPERS_PRINTER_DECL(int, v4l2_ioctl, struct tcb *const tcp,
991 const unsigned int code, const kernel_ulong_t arg)
997 case VIDIOC_QUERYCAP: /* R */
998 return print_v4l2_capability(tcp, arg);
1000 case VIDIOC_ENUM_FMT: /* RW */
1001 return print_v4l2_fmtdesc(tcp, arg);
1003 case VIDIOC_G_FMT: /* RW */
1004 case VIDIOC_S_FMT: /* RW */
1005 case VIDIOC_TRY_FMT: /* RW */
1006 return print_v4l2_format(tcp, arg, code == VIDIOC_G_FMT);
1008 case VIDIOC_REQBUFS: /* RW */
1009 return print_v4l2_requestbuffers(tcp, arg);
1011 case VIDIOC_QUERYBUF: /* RW */
1012 case VIDIOC_QBUF: /* RW */
1013 case VIDIOC_DQBUF: /* RW */
1014 return print_v4l2_buffer(tcp, code, arg);
1016 case VIDIOC_G_FBUF: /* R */
1020 case VIDIOC_S_FBUF: /* W */
1021 return print_v4l2_framebuffer(tcp, arg);
1023 case VIDIOC_STREAMON: /* W */
1024 case VIDIOC_STREAMOFF: /* W */
1025 return print_v4l2_buf_type(tcp, arg);
1027 case VIDIOC_G_PARM: /* RW */
1028 case VIDIOC_S_PARM: /* RW */
1029 return print_v4l2_streamparm(tcp, arg, code == VIDIOC_G_PARM);
1031 case VIDIOC_G_STD: /* R */
1035 case VIDIOC_S_STD: /* W */
1037 printnum_int64(tcp, arg, "%#" PRIx64);
1040 case VIDIOC_ENUMSTD: /* RW */
1041 return print_v4l2_standard(tcp, arg);
1043 case VIDIOC_ENUMINPUT: /* RW */
1044 return print_v4l2_input(tcp, arg);
1046 case VIDIOC_G_CTRL: /* RW */
1047 case VIDIOC_S_CTRL: /* RW */
1048 return print_v4l2_control(tcp, arg, code == VIDIOC_G_CTRL);
1050 case VIDIOC_G_TUNER: /* RW */
1051 case VIDIOC_S_TUNER: /* RW */
1052 return print_v4l2_tuner(tcp, arg, code == VIDIOC_G_TUNER);
1054 case VIDIOC_QUERYCTRL: /* RW */
1055 return print_v4l2_queryctrl(tcp, arg);
1057 case VIDIOC_G_INPUT: /* R */
1061 case VIDIOC_S_INPUT: /* RW */
1063 printnum_int(tcp, arg, "%u");
1066 case VIDIOC_CROPCAP: /* RW */
1067 return print_v4l2_cropcap(tcp, arg);
1069 case VIDIOC_G_CROP: /* RW */
1070 case VIDIOC_S_CROP: /* W */
1071 return print_v4l2_crop(tcp, arg, code == VIDIOC_G_CROP);
1073 #ifdef VIDIOC_S_EXT_CTRLS
1074 case VIDIOC_S_EXT_CTRLS: /* RW */
1075 case VIDIOC_TRY_EXT_CTRLS: /* RW */
1076 case VIDIOC_G_EXT_CTRLS: /* RW */
1077 return print_v4l2_ext_controls(tcp, arg,
1078 code == VIDIOC_G_EXT_CTRLS);
1079 #endif /* VIDIOC_S_EXT_CTRLS */
1081 #ifdef VIDIOC_ENUM_FRAMESIZES
1082 case VIDIOC_ENUM_FRAMESIZES: /* RW */
1083 return print_v4l2_frmsizeenum(tcp, arg);
1084 #endif /* VIDIOC_ENUM_FRAMESIZES */
1086 #ifdef VIDIOC_ENUM_FRAMEINTERVALS
1087 case VIDIOC_ENUM_FRAMEINTERVALS: /* RW */
1088 return print_v4l2_frmivalenum(tcp, arg);
1089 #endif /* VIDIOC_ENUM_FRAMEINTERVALS */
1091 #ifdef VIDIOC_CREATE_BUFS
1092 case VIDIOC_CREATE_BUFS: /* RW */
1093 return print_v4l2_create_buffers(tcp, arg);
1094 #endif /* VIDIOC_CREATE_BUFS */
1097 return RVAL_DECODED;
1100 return RVAL_IOCTL_DECODED;