* Copyright (c) 2014 Philippe De Muyter <phdm@macqel.be>
* Copyright (c) 2014 William Manley <will@williammanley.net>
* Copyright (c) 2011 Peter Zotov <whitequark@whitequark.org>
+ * Copyright (c) 2014-2019 The strace developers.
* All rights reserved.
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "defs.h"
#include <stdint.h>
-#include <sys/ioctl.h>
+#include <linux/ioctl.h>
+#include <linux/types.h>
#include <linux/videodev2.h>
-/* some historical constants */
-#ifndef V4L2_CID_HCENTER
-#define V4L2_CID_HCENTER (V4L2_CID_BASE+22)
-#endif
-#ifndef V4L2_CID_VCENTER
-#define V4L2_CID_VCENTER (V4L2_CID_BASE+23)
+
+#include DEF_MPERS_TYPE(struct_v4l2_buffer)
+#include DEF_MPERS_TYPE(struct_v4l2_clip)
+#ifdef VIDIOC_CREATE_BUFS
+# include DEF_MPERS_TYPE(struct_v4l2_create_buffers)
#endif
-#ifndef V4L2_CID_BAND_STOP_FILTER
-#define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33)
+#include DEF_MPERS_TYPE(struct_v4l2_ext_control)
+#include DEF_MPERS_TYPE(struct_v4l2_ext_controls)
+#include DEF_MPERS_TYPE(struct_v4l2_format)
+#include DEF_MPERS_TYPE(struct_v4l2_framebuffer)
+#include DEF_MPERS_TYPE(struct_v4l2_input)
+#include DEF_MPERS_TYPE(struct_v4l2_standard)
+
+typedef struct v4l2_buffer struct_v4l2_buffer;
+typedef struct v4l2_clip struct_v4l2_clip;
+#ifdef VIDIOC_CREATE_BUFS
+typedef struct v4l2_create_buffers struct_v4l2_create_buffers;
#endif
+typedef struct v4l2_ext_control struct_v4l2_ext_control;
+typedef struct v4l2_ext_controls struct_v4l2_ext_controls;
+typedef struct v4l2_format struct_v4l2_format;
+typedef struct v4l2_framebuffer struct_v4l2_framebuffer;
+typedef struct v4l2_input struct_v4l2_input;
+typedef struct v4l2_standard struct_v4l2_standard;
-#include "xlat/v4l2_device_capabilities_flags.h"
-#include "xlat/v4l2_buf_types.h"
-#include "xlat/v4l2_buf_flags.h"
-#include "xlat/v4l2_framesize_types.h"
-#include "xlat/v4l2_frameinterval_types.h"
-#include "xlat/v4l2_fields.h"
-#include "xlat/v4l2_colorspaces.h"
-#include "xlat/v4l2_format_description_flags.h"
-#include "xlat/v4l2_memories.h"
-#include "xlat/v4l2_control_ids.h"
-#include "xlat/v4l2_control_types.h"
-#include "xlat/v4l2_control_flags.h"
-#include "xlat/v4l2_control_classes.h"
-#include "xlat/v4l2_streaming_capabilities.h"
-#include "xlat/v4l2_capture_modes.h"
-#include "xlat/v4l2_input_types.h"
+#include MPERS_DEFS
+
+#include "print_fields.h"
+#include "print_utils.h"
+#include "xstring.h"
+
+/* v4l2_fourcc_be was added by Linux commit v3.18-rc1~101^2^2~127 */
+#ifndef v4l2_fourcc_be
+# define v4l2_fourcc_be(a, b, c, d) (v4l2_fourcc(a, b, c, d) | (1U << 31))
+#endif
#define FMT_FRACT "%u/%u"
#define ARGS_FRACT(x) ((x).numerator), ((x).denominator)
-#define FMT_RECT "{left=%i, top=%i, width=%i, height=%i}"
+#define FMT_RECT "{left=%d, top=%d, width=%u, height=%u}"
#define ARGS_RECT(x) (x).left, (x).top, (x).width, (x).height
-static void print_pixelformat(uint32_t fourcc)
+#include "xlat/v4l2_pix_fmts.h"
+#include "xlat/v4l2_sdr_fmts.h"
+
+static void
+print_pixelformat(uint32_t fourcc, const struct xlat *xlat)
{
-#if WORDS_BIGENDIAN
- fourcc = htole32(fourcc);
+ unsigned char a[] = {
+ (unsigned char) fourcc,
+ (unsigned char) (fourcc >> 8),
+ (unsigned char) (fourcc >> 16),
+ (unsigned char) (fourcc >> 24),
+ };
+ unsigned int i;
+
+ tprints("v4l2_fourcc(");
+ /* Generic char array printing routine. */
+ for (i = 0; i < ARRAY_SIZE(a); ++i) {
+ unsigned char c = a[i];
+
+ if (i)
+ tprints(", ");
+ if (c == '\'' || c == '\\') {
+ char sym[] = {
+ '\'',
+ '\\',
+ c,
+ '\'',
+ '\0'
+ };
+ tprints(sym);
+ } else if (is_print(c)) {
+ char sym[] = {
+ '\'',
+ c,
+ '\'',
+ '\0'
+ };
+ tprints(sym);
+ } else {
+ char hex[] = {
+ BYTE_HEX_CHARS_PRINTF_QUOTED(c),
+ '\0'
+ };
+ tprints(hex);
+ }
+ }
+ tprints(")");
+
+ if (xlat) {
+ const char *pixfmt_name = xlookup(xlat, fourcc);
+
+ if (pixfmt_name)
+ tprints_comment(pixfmt_name);
+ }
+}
+
+#include "xlat/v4l2_device_capabilities_flags.h"
+
+static int
+print_v4l2_capability(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_capability caps;
+
+ if (entering(tcp))
+ return 0;
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &caps))
+ return RVAL_IOCTL_DECODED;
+ PRINT_FIELD_CSTRING("{", caps, driver);
+ PRINT_FIELD_CSTRING(", ", caps, card);
+ PRINT_FIELD_CSTRING(", ", caps, bus_info);
+ tprintf(", version=%u.%u.%u, capabilities=",
+ (caps.version >> 16) & 0xFF,
+ (caps.version >> 8) & 0xFF,
+ caps.version & 0xFF);
+ printflags(v4l2_device_capabilities_flags, caps.capabilities,
+ "V4L2_CAP_???");
+#ifdef HAVE_STRUCT_V4L2_CAPABILITY_DEVICE_CAPS
+ tprints(", device_caps=");
+ printflags(v4l2_device_capabilities_flags, caps.device_caps,
+ "V4L2_CAP_???");
#endif
- tprintf("%.4s", (char*)&fourcc);
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_buf_types.h"
+#include "xlat/v4l2_format_description_flags.h"
+
+static int
+print_v4l2_fmtdesc(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_fmtdesc f;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &f))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{index=%u, type=", f.index);
+ printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
+ return 0;
+ }
+
+ if (!syserror(tcp) && !umove(tcp, arg, &f)) {
+ tprints(", flags=");
+ printflags(v4l2_format_description_flags, f.flags,
+ "V4L2_FMT_FLAG_???");
+ PRINT_FIELD_CSTRING(", ", f, description);
+ tprints(", pixelformat=");
+ print_pixelformat(f.pixelformat, v4l2_pix_fmts);
+ }
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_fields.h"
+#include "xlat/v4l2_colorspaces.h"
+#include "xlat/v4l2_vbi_flags.h"
+#include "xlat/v4l2_sliced_flags.h"
+
+static bool
+print_v4l2_clip(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
+{
+ const struct_v4l2_clip *p = elem_buf;
+ tprintf(FMT_RECT, ARGS_RECT(p->c));
+ return true;
}
-static void print_v4l2_format_fmt(const struct v4l2_format *f)
+static bool
+print_v4l2_format_fmt(struct tcb *const tcp, const char *prefix,
+ const struct_v4l2_format *f)
{
- tprints("fmt.");
+ bool ret = true;
switch (f->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- case V4L2_BUF_TYPE_VIDEO_OUTPUT: {
- const struct v4l2_pix_format *pix = &f->fmt.pix;
-
- tprintf("pix={width=%u, height=%u, pixelformat=",
- pix->width, pix->height);
- print_pixelformat(pix->pixelformat);
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ tprints(prefix);
+ tprintf("fmt.pix={width=%u, height=%u, pixelformat=",
+ f->fmt.pix.width, f->fmt.pix.height);
+ print_pixelformat(f->fmt.pix.pixelformat, v4l2_pix_fmts);
tprints(", field=");
- printxval(v4l2_fields, pix->field, "V4L2_FIELD_???");
+ printxval(v4l2_fields, f->fmt.pix.field, "V4L2_FIELD_???");
tprintf(", bytesperline=%u, sizeimage=%u, colorspace=",
- pix->bytesperline, pix->sizeimage);
- printxval(v4l2_colorspaces, pix->colorspace,
+ f->fmt.pix.bytesperline, f->fmt.pix.sizeimage);
+ printxval(v4l2_colorspaces, f->fmt.pix.colorspace,
"V4L2_COLORSPACE_???");
tprints("}");
break;
- }
-#if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE
+#if HAVE_STRUCT_V4L2_FORMAT_FMT_PIX_MP
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: {
- const struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp;
unsigned int i, max;
- tprintf("pix_mp={width=%u, height=%u, pixelformat=",
- pix_mp->width, pix_mp->height);
- print_pixelformat(pix_mp->pixelformat);
+ tprints(prefix);
+ tprintf("fmt.pix_mp={width=%u, height=%u, pixelformat=",
+ f->fmt.pix_mp.width, f->fmt.pix_mp.height);
+ print_pixelformat(f->fmt.pix_mp.pixelformat, v4l2_pix_fmts);
tprints(", field=");
- printxval(v4l2_fields, pix_mp->field, "V4L2_FIELD_???");
+ printxval(v4l2_fields, f->fmt.pix_mp.field, "V4L2_FIELD_???");
tprints(", colorspace=");
- printxval(v4l2_colorspaces, pix_mp->colorspace,
+ printxval(v4l2_colorspaces, f->fmt.pix_mp.colorspace,
"V4L2_COLORSPACE_???");
- tprints("plane_fmt=[");
- max = pix_mp->num_planes;
+ tprints(", plane_fmt=[");
+ max = f->fmt.pix_mp.num_planes;
if (max > VIDEO_MAX_PLANES)
max = VIDEO_MAX_PLANES;
for (i = 0; i < max; i++) {
if (i > 0)
tprints(", ");
tprintf("{sizeimage=%u, bytesperline=%u}",
- pix_mp->plane_fmt[i].sizeimage,
- pix_mp->plane_fmt[i].bytesperline);
+ f->fmt.pix_mp.plane_fmt[i].sizeimage,
+ f->fmt.pix_mp.plane_fmt[i].bytesperline);
}
- tprintf("], num_planes=%u}", (unsigned) pix_mp->num_planes);
+ tprintf("], num_planes=%u}",
+ (unsigned) f->fmt.pix_mp.num_planes);
break;
}
#endif
-
- /* TODO: Complete this switch statement */
- case V4L2_BUF_TYPE_VIDEO_OVERLAY:
-#if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
+ /* OUTPUT_OVERLAY since Linux v2.6.22-rc1~1118^2~179 */
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
+ case V4L2_BUF_TYPE_VIDEO_OVERLAY: {
+ struct_v4l2_clip clip;
+ tprints(prefix);
+ tprintf("fmt.win={left=%d, top=%d, width=%u, height=%u, field=",
+ ARGS_RECT(f->fmt.win.w));
+ printxval(v4l2_fields, f->fmt.win.field, "V4L2_FIELD_???");
+ tprintf(", chromakey=%#x, clips=", f->fmt.win.chromakey);
+ ret = print_array(tcp, ptr_to_kulong(f->fmt.win.clips),
+ f->fmt.win.clipcount, &clip, sizeof(clip),
+ tfetch_mem, print_v4l2_clip, 0);
+ tprintf(", clipcount=%u, bitmap=", f->fmt.win.clipcount);
+ printaddr(ptr_to_kulong(f->fmt.win.bitmap));
+#ifdef HAVE_STRUCT_V4L2_WINDOW_GLOBAL_ALPHA
+ tprintf(", global_alpha=%#x", f->fmt.win.global_alpha);
#endif
- tprints("win={???}");
+ tprints("}");
break;
-
+ }
case V4L2_BUF_TYPE_VBI_CAPTURE:
case V4L2_BUF_TYPE_VBI_OUTPUT:
- tprints("vbi={???}");
+ tprints(prefix);
+ tprintf("fmt.vbi={sampling_rate=%u, offset=%u, "
+ "samples_per_line=%u, sample_format=",
+ f->fmt.vbi.sampling_rate, f->fmt.vbi.offset,
+ f->fmt.vbi.samples_per_line);
+ print_pixelformat(f->fmt.vbi.sample_format, v4l2_pix_fmts);
+ tprintf(", start=[%u, %u], count=[%u, %u], ",
+ f->fmt.vbi.start[0], f->fmt.vbi.start[1],
+ f->fmt.vbi.count[0], f->fmt.vbi.count[1]);
+ tprints("flags=");
+ printxval(v4l2_vbi_flags, f->fmt.vbi.flags, "V4L2_VBI_???");
+ tprints("}");
break;
-
+ /* both since Linux v2.6.14-rc2~64 */
+#if HAVE_STRUCT_V4L2_FORMAT_FMT_SLICED
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
- case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
- tprints("sliced={???}");
- break;
+ case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: {
+ unsigned int i, j;
- default:
- tprints("???");
+ tprints(prefix);
+ tprints("fmt.sliced={service_set=");
+ printxval(v4l2_sliced_flags, f->fmt.sliced.service_set,
+ "V4L2_SLICED_???");
+ tprintf(", io_size=%u, service_lines=[",
+ f->fmt.sliced.io_size);
+ for (i = 0; i < ARRAY_SIZE(f->fmt.sliced.service_lines); i++) {
+ if (i > 0)
+ tprints(", ");
+ tprints("[");
+ for (j = 0;
+ j < ARRAY_SIZE(f->fmt.sliced.service_lines[0]);
+ j++) {
+ if (j > 0)
+ tprints(", ");
+ tprintf("%#x",
+ f->fmt.sliced.service_lines[i][j]);
+ }
+ tprints("]");
+ }
+ tprints("]}");
break;
}
+#endif
+#if HAVE_STRUCT_V4L2_FORMAT_FMT_SDR
+ /* since Linux v4.4-rc1~118^2~14 */
+ case V4L2_BUF_TYPE_SDR_OUTPUT:
+ /* since Linux v3.15-rc1~85^2~213 */
+ case V4L2_BUF_TYPE_SDR_CAPTURE:
+ tprints(prefix);
+ tprints("fmt.sdr={pixelformat=");
+ print_pixelformat(f->fmt.sdr.pixelformat, v4l2_sdr_fmts);
+# ifdef HAVE_STRUCT_V4L2_SDR_FORMAT_BUFFERSIZE
+ tprintf(", buffersize=%u",
+ f->fmt.sdr.buffersize);
+# endif
+ tprints("}");
+ break;
+#endif
+ }
+ return ret;
}
-int
-v4l2_ioctl(struct tcb *tcp, const unsigned int code, long arg)
+static int
+print_v4l2_format(struct tcb *const tcp, const kernel_ulong_t arg,
+ const bool is_get)
{
- if (!verbose(tcp))
+ struct_v4l2_format f;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &f))
+ return RVAL_IOCTL_DECODED;
+ tprints("{type=");
+ printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
+ if (is_get)
+ return 0;
+ if (!print_v4l2_format_fmt(tcp, ", ", &f)) {
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
+ }
+
return 0;
+ }
- switch (code) {
- case VIDIOC_QUERYCAP: /* decode on exit */ {
- struct v4l2_capability caps;
+ if (!syserror(tcp) && !umove(tcp, arg, &f))
+ print_v4l2_format_fmt(tcp, is_get ? ", " : " => ", &f);
- if (entering(tcp) || syserror(tcp) || umove(tcp, arg, &caps) < 0)
- return 0;
- tprints(", {driver=");
- print_quoted_string((const char *) caps.driver,
- sizeof(caps.driver), QUOTE_0_TERMINATED);
- tprints(", card=");
- print_quoted_string((const char *) caps.card,
- sizeof(caps.card), QUOTE_0_TERMINATED);
- tprints(", bus_info=");
- print_quoted_string((const char *) caps.bus_info,
- sizeof(caps.bus_info), QUOTE_0_TERMINATED);
- tprintf(", version=%u.%u.%u, capabilities=",
- (caps.version >> 16) & 0xFF,
- (caps.version >> 8) & 0xFF,
- caps.version & 0xFF);
- printflags(v4l2_device_capabilities_flags, caps.capabilities,
- "V4L2_CAP_???");
-#ifdef V4L2_CAP_DEVICE_CAPS
- tprints(", device_caps=");
- printflags(v4l2_device_capabilities_flags, caps.device_caps,
- "V4L2_CAP_???");
-#endif
- tprints("}");
- return 1;
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_memories.h"
+
+static int
+print_v4l2_requestbuffers(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_requestbuffers reqbufs;
+
+ if (entering(tcp)) {
+ tprints(", ");
+
+ if (umove_or_printaddr(tcp, arg, &reqbufs))
+ return RVAL_IOCTL_DECODED;
+
+ tprintf("{type=");
+ printxval(v4l2_buf_types, reqbufs.type, "V4L2_BUF_TYPE_???");
+ tprints(", memory=");
+ printxval(v4l2_memories, reqbufs.memory, "V4L2_MEMORY_???");
+ tprintf(", count=%u", reqbufs.count);
+
+ return 0;
}
-#ifdef VIDIOC_ENUM_FRAMESIZES
- case VIDIOC_ENUM_FRAMESIZES: /* decode on exit */ {
- struct v4l2_frmsizeenum s;
+ if (!syserror(tcp)) {
+ tprints(" => ");
- if (entering(tcp) || umove(tcp, arg, &s) < 0)
- return 0;
- tprintf(", {index=%u, pixel_format=", s.index);
- print_pixelformat(s.pixel_format);
-
- if (!syserror(tcp)) {
- tprints(", type=");
- printxval(v4l2_framesize_types, s.type, "V4L2_FRMSIZE_TYPE_???");
- switch (s.type) {
- case V4L2_FRMSIZE_TYPE_DISCRETE:
- tprintf(", discrete={width=%u, height=%u}",
- s.discrete.width, s.discrete.height);
- break;
- case V4L2_FRMSIZE_TYPE_STEPWISE:
- tprintf(", stepwise={min_width=%u, max_width=%u, "
- "step_width=%u, min_height=%u, max_height=%u, "
- "step_height=%u}",
- s.stepwise.min_width, s.stepwise.max_width,
- s.stepwise.step_width, s.stepwise.min_height,
- s.stepwise.max_height, s.stepwise.step_height);
- break;
- }
- }
- tprints("}");
- return 1;
+ if (!umove(tcp, arg, &reqbufs))
+ tprintf("%u", reqbufs.count);
+ else
+ tprints("???");
}
-#endif /* VIDIOC_ENUM_FRAMESIZES */
- case VIDIOC_G_FMT:
- case VIDIOC_S_FMT:
- case VIDIOC_TRY_FMT: {
- struct v4l2_format f;
+ tprints("}");
- if (umove(tcp, arg, &f) < 0)
- return 0;
- if (entering(tcp)) {
- tprints(", {type=");
- printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_buf_flags.h"
+
+static int
+print_v4l2_buffer(struct tcb *const tcp, const unsigned int code,
+ const kernel_ulong_t arg)
+{
+ struct_v4l2_buffer b;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &b))
+ return RVAL_IOCTL_DECODED;
+ tprints("{type=");
+ printxval(v4l2_buf_types, b.type, "V4L2_BUF_TYPE_???");
+ if (code != VIDIOC_DQBUF)
+ tprintf(", index=%u", b.index);
+
+ return 0;
+ }
+
+ if (!syserror(tcp) && !umove(tcp, arg, &b)) {
+ if (code == VIDIOC_DQBUF)
+ tprintf(", index=%u", b.index);
+ tprints(", memory=");
+ printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
+
+ if (b.memory == V4L2_MEMORY_MMAP) {
+ tprintf(", m.offset=%#x", b.m.offset);
+ } else if (b.memory == V4L2_MEMORY_USERPTR) {
+ tprints(", m.userptr=");
+ printaddr(b.m.userptr);
}
- if ((entering(tcp) && code != VIDIOC_G_FMT)
- || (exiting(tcp) && !syserror(tcp))) {
- tprints(exiting(tcp) && code != VIDIOC_G_FMT ? " => " : ", ");
- print_v4l2_format_fmt(&f);
+
+ tprintf(", length=%u, bytesused=%u, flags=",
+ b.length, b.bytesused);
+ printflags(v4l2_buf_flags, b.flags, "V4L2_BUF_FLAG_???");
+ if (code == VIDIOC_DQBUF) {
+ tprints(", timestamp = ");
+ MPERS_FUNC_NAME(print_struct_timeval)(&b.timestamp);
}
- if (exiting(tcp))
- tprints("}");
- return 1;
+ tprints(", ...");
}
- case VIDIOC_ENUM_FMT: {
- struct v4l2_fmtdesc f;
+ tprints("}");
- if (entering(tcp) || umove(tcp, arg, &f) < 0)
- return 0;
+ return RVAL_IOCTL_DECODED;
+}
- tprintf(", {index=%u", f.index);
- if (!syserror(tcp)) {
- tprints(", type=");
- printxval(v4l2_buf_types, f.type, "V4L2_BUF_TYPE_???");
- tprints(", flags=");
- printflags(v4l2_format_description_flags, f.flags,
- "V4L2_FMT_FLAG_???");
- tprints(", description=");
- print_quoted_string((const char *) f.description,
- sizeof(f.description),
- QUOTE_0_TERMINATED);
- tprints(", pixelformat=");
- print_pixelformat(f.pixelformat);
- }
+static int
+print_v4l2_framebuffer(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct_v4l2_framebuffer b;
+
+ tprints(", ");
+ if (!umove_or_printaddr(tcp, arg, &b)) {
+ tprintf("{capability=%#x, flags=%#x, base=",
+ b.capability, b.flags);
+ printaddr(ptr_to_kulong(b.base));
tprints("}");
- return 1;
}
- case VIDIOC_G_PARM:
- case VIDIOC_S_PARM: {
- struct v4l2_streamparm s;
+ return RVAL_IOCTL_DECODED;
+}
- if (entering(tcp) && code == VIDIOC_G_PARM)
- return 1;
- if (exiting(tcp) && syserror(tcp))
- return code == VIDIOC_S_PARM;
- if (umove(tcp, arg, &s) < 0)
- return 0;
- if (entering(tcp)) {
- tprints(", {type=");
- printxval(v4l2_buf_types, s.type, "V4L2_BUF_TYPE_???");
+static int
+print_v4l2_buf_type(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ int type;
+
+ tprints(", ");
+ if (!umove_or_printaddr(tcp, arg, &type)) {
+ tprints("[");
+ printxval(v4l2_buf_types, type, "V4L2_BUF_TYPE_???");
+ tprints("]");
+ }
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_streaming_capabilities.h"
+#include "xlat/v4l2_capture_modes.h"
+
+static int
+print_v4l2_streamparm(struct tcb *const tcp, const kernel_ulong_t arg,
+ const bool is_get)
+{
+ struct v4l2_streamparm s;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &s))
+ return RVAL_IOCTL_DECODED;
+ tprints("{type=");
+ printxval(v4l2_buf_types, s.type, "V4L2_BUF_TYPE_???");
+ switch (s.type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ if (is_get)
+ return 0;
+ tprints(", ");
+ break;
+ default:
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
}
+ } else {
+ if (syserror(tcp) || umove(tcp, arg, &s) < 0) {
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
+ }
+ tprints(is_get ? ", " : " => ");
+ }
+
+ if (s.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ tprints("parm.capture={capability=");
+ printflags(v4l2_streaming_capabilities,
+ s.parm.capture.capability, "V4L2_CAP_???");
+
+ tprints(", capturemode=");
+ printflags(v4l2_capture_modes,
+ s.parm.capture.capturemode, "V4L2_MODE_???");
- tprints(exiting(tcp) && code == VIDIOC_S_PARM ? " => {" : ", {");
- if (s.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- struct v4l2_captureparm *cap = &s.parm.capture;
+ tprintf(", timeperframe=" FMT_FRACT,
+ ARGS_FRACT(s.parm.capture.timeperframe));
- tprints("capability=");
- printflags(v4l2_streaming_capabilities,
- cap->capability, "V4L2_CAP_???");
+ tprintf(", extendedmode=%u, readbuffers=%u}",
+ s.parm.capture.extendedmode,
+ s.parm.capture.readbuffers);
+ } else {
+ tprints("parm.output={capability=");
+ printflags(v4l2_streaming_capabilities,
+ s.parm.output.capability, "V4L2_CAP_???");
- tprints(", capturemode=");
- printflags(v4l2_capture_modes,
- cap->capturemode, "V4L2_MODE_???");
+ tprintf(", outputmode=%u", s.parm.output.outputmode);
- tprintf(", timeperframe=" FMT_FRACT,
- ARGS_FRACT(cap->timeperframe));
+ tprintf(", timeperframe=" FMT_FRACT,
+ ARGS_FRACT(s.parm.output.timeperframe));
- tprintf(", extendedmode=%u, readbuffers=%u",
- cap->extendedmode,
- cap->readbuffers);
- } else
- tprints("...");
+ tprintf(", extendedmode=%u, writebuffers=%u}",
+ s.parm.output.extendedmode,
+ s.parm.output.writebuffers);
+ }
+ if (entering(tcp)) {
+ return 0;
+ } else {
tprints("}");
- if (exiting(tcp))
- tprints("}");
- return 1;
+ return RVAL_IOCTL_DECODED;
+ }
+}
+
+static int
+print_v4l2_standard(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct_v4l2_standard s;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &s))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{index=%u", s.index);
+
+ return 0;
+ }
+
+ if (!syserror(tcp) && !umove(tcp, arg, &s)) {
+ PRINT_FIELD_CSTRING(", ", s, name);
+ tprintf(", frameperiod=" FMT_FRACT,
+ ARGS_FRACT(s.frameperiod));
+ tprintf(", framelines=%d", s.framelines);
+ }
+
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_input_types.h"
+
+static int
+print_v4l2_input(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct_v4l2_input i;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &i))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{index=%u", i.index);
+
+ return 0;
+ }
+
+ if (!syserror(tcp) && !umove(tcp, arg, &i)) {
+ PRINT_FIELD_CSTRING(", ", i, name);
+ tprints(", type=");
+ printxval(v4l2_input_types, i.type, "V4L2_INPUT_TYPE_???");
+ }
+
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
+
+/*
+ * We include it here and not before print_v4l2_ext_controls as we need
+ * V4L2_CTRL_CLASS_* definitions for V4L2_CID_*_BASE ones.
+ */
+#include "xlat/v4l2_control_classes.h"
+#include "xlat/v4l2_control_id_bases.h"
+#include "xlat/v4l2_control_ids.h"
+
+static void
+print_v4l2_cid(const uint32_t cid)
+{
+ const char *id_name = xlookup(v4l2_control_ids, cid);
+
+ if (id_name) {
+ print_xlat_ex(cid, id_name, XLAT_STYLE_DEFAULT);
+ return;
+ }
+
+ uint64_t class_id = cid;
+ const char *class_str = xlookup_le(v4l2_control_classes, &class_id);
+
+ if (!class_str || (cid - class_id) >= 0x10000) {
+ print_xlat_ex(cid, "V4L2_CID_???", PXF_DEFAULT_STR);
+ return;
+ }
+
+ char *tmp_str;
+
+ if (asprintf(&tmp_str, "%s+%#" PRIx64,
+ class_str, cid - class_id) < 0)
+ tmp_str = NULL;
+
+ print_xlat_ex(cid, tmp_str, XLAT_STYLE_DEFAULT);
+ free(tmp_str);
+}
+
+static int
+print_v4l2_control(struct tcb *const tcp, const kernel_ulong_t arg,
+ const bool is_get)
+{
+ struct v4l2_control c;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &c))
+ return RVAL_IOCTL_DECODED;
+
+ tprints("{id=");
+ print_v4l2_cid(c.id);
+ if (!is_get)
+ tprintf(", value=%d", c.value);
+ return 0;
}
- case VIDIOC_QUERYCTRL: {
- struct v4l2_queryctrl c;
+ if (!syserror(tcp) && !umove(tcp, arg, &c)) {
+ tprints(is_get ? ", " : " => ");
+ tprintf("value=%d", c.value);
+ }
+
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
+
+#include "xlat/v4l2_tuner_types.h"
+#include "xlat/v4l2_tuner_capabilities.h"
+#include "xlat/v4l2_tuner_rxsubchanses.h"
+#include "xlat/v4l2_tuner_audmodes.h"
- if (umove(tcp, arg, &c) < 0)
+static int
+print_v4l2_tuner(struct tcb *const tcp, const kernel_ulong_t arg,
+ const bool is_get)
+{
+ struct v4l2_tuner c;
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &c))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{index=%u", c.index);
+ if (is_get)
return 0;
- /* 'id' field must be printed :
- * on enter
- * on exit if !syserror(tcp) && V4L2_CTRL_FLAG_NEXT_CTRL was set
- */
- if (entering(tcp)
- || (exiting(tcp) && tcp->auxstr && !syserror(tcp))) {
- tprints(exiting(tcp) ? " => " : ", {id=");
- tcp->auxstr = (c.id & V4L2_CTRL_FLAG_NEXT_CTRL) ? "" : NULL;
- if (tcp->auxstr) {
- tprints("V4L2_CTRL_FLAG_NEXT_CTRL|");
- c.id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
- }
- printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
- }
- if (exiting(tcp)) {
- if (!syserror(tcp)) {
- tprints(", type=");
- printxval(v4l2_control_types, c.type,
- "V4L2_CTRL_TYPE_???");
- tprints(", name=");
- print_quoted_string((const char *) c.name,
- sizeof(c.name),
- QUOTE_0_TERMINATED);
- tprintf(", minimum=%i, maximum=%i, step=%i, "
- "default_value=%i, flags=",
- c.minimum, c.maximum,
- c.step, c.default_value);
- printflags(v4l2_control_flags, c.flags,
- "V4L2_CTRL_FLAG_???");
- }
+ tprints(", ");
+ } else {
+ if (syserror(tcp) || umove(tcp, arg, &c) < 0) {
tprints("}");
+ return RVAL_IOCTL_DECODED;
}
- return 1;
+ tprints(is_get ? ", " : " => ");
}
- case VIDIOC_G_CTRL:
- case VIDIOC_S_CTRL: {
- struct v4l2_control c;
+ PRINT_FIELD_CSTRING("", c, name);
+ tprints(", type=");
+ printxval(v4l2_tuner_types, c.type, "V4L2_TUNER_TYPE_???");
+ tprints(", capability=");
+ printxval(v4l2_tuner_capabilities, c.capability,
+ "V4L2_TUNER_CAP_???");
+ tprintf(", rangelow=%u, rangehigh=%u, rxsubchans=",
+ c.rangelow, c.rangehigh);
+ printxval(v4l2_tuner_rxsubchanses, c.rxsubchans,
+ "V4L2_TUNER_SUB_???");
+ tprints(", audmode=");
+ printxval(v4l2_tuner_audmodes, c.audmode,
+ "V4L2_TUNER_MODE_???");
+ tprintf(", signal=%d, afc=%d", c.signal, c.afc);
- if (entering(tcp) || umove(tcp, arg, &c) < 0)
- return 0;
- tprints(", {id=");
- printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
- if (!syserror(tcp) || code != VIDIOC_G_CTRL)
- tprintf(", value=%i", c.value);
+ if (entering(tcp)) {
+ return 0;
+ } else {
tprints("}");
- return 1;
+ return RVAL_IOCTL_DECODED;
}
+}
- case VIDIOC_S_EXT_CTRLS:
- case VIDIOC_TRY_EXT_CTRLS:
- case VIDIOC_G_EXT_CTRLS: {
- struct v4l2_ext_controls c;
- unsigned int n;
- bool must_print_values;
+#include "xlat/v4l2_control_types.h"
+#include "xlat/v4l2_control_flags.h"
- if (entering(tcp) && code == VIDIOC_G_EXT_CTRLS)
- return 0;
- if (exiting(tcp) && syserror(tcp) && code != VIDIOC_G_EXT_CTRLS)
- return 0;
- must_print_values = ((entering(tcp) && code != VIDIOC_G_EXT_CTRLS)
- || (exiting(tcp) && !syserror(tcp)));
- if (umove(tcp, arg, &c) < 0)
- return 0;
- tprints(code != VIDIOC_G_EXT_CTRLS && exiting(tcp) ? " => " : ", ");
- tprints("{ctrl_class=");
- printxval(v4l2_control_classes, c.ctrl_class,
- "V4L2_CTRL_CLASS_???");
- tprintf(", count=%u", c.count);
- if (exiting(tcp) && syserror(tcp))
- tprintf(", error_idx=%u", c.error_idx);
- tprints(", controls=[");
- for (n = 0; n < c.count; ++n) {
- struct v4l2_ext_control ctrl;
+static int
+print_v4l2_queryctrl(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_queryctrl c;
- if (n > 0)
- tprints(", ");
- if (umove(tcp, (long) (c.controls + n), &ctrl) < 0)
- break;
- if (abbrev(tcp) && n == 2) {
- tprints("...");
- break;
- }
- tprints("{id=");
- printxval(v4l2_control_ids, ctrl.id, "V4L2_CID_???");
-#if HAVE_DECL_V4L2_CTRL_TYPE_STRING
- tprintf(", size=%u", ctrl.size);
- if (ctrl.size > 0) {
- if (must_print_values) {
- tprints(", string=");
- printstr(tcp, (long) ctrl.string, ctrl.size);
- }
- } else
-#endif
- {
- if (must_print_values) {
- tprintf(", value=%i, value64=%lli", ctrl.value,
- ctrl.value64);
- }
- }
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &c))
+ return RVAL_IOCTL_DECODED;
+ tprints("{id=");
+ } else {
+ if (syserror(tcp) || umove(tcp, arg, &c) < 0) {
tprints("}");
+ return RVAL_IOCTL_DECODED;
}
- tprints("]}");
- return 1;
+ if (get_tcb_priv_ulong(tcp))
+ tprints(" => ");
}
- case VIDIOC_ENUMSTD: {
- struct v4l2_standard s;
-
- if (umove(tcp, arg, &s) < 0)
- return 0;
- if (entering(tcp))
- tprintf(", {index=%i", s.index);
- else {
- if (!syserror(tcp)) {
- tprints(", name=");
- print_quoted_string((const char *) s.name,
- sizeof(s.name),
- QUOTE_0_TERMINATED);
- tprintf(", frameperiod=" FMT_FRACT, ARGS_FRACT(s.frameperiod));
- tprintf(", framelines=%i", s.framelines);
- }
- tprints("}");
+ if (entering(tcp) || get_tcb_priv_ulong(tcp)) {
+#ifdef V4L2_CTRL_FLAG_NEXT_CTRL
+ const unsigned long next = c.id & V4L2_CTRL_FLAG_NEXT_CTRL;
+ set_tcb_priv_ulong(tcp, next);
+ if (next) {
+ print_xlat(V4L2_CTRL_FLAG_NEXT_CTRL);
+ tprints("|");
+ c.id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
}
- return 1;
+#endif
+ printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
}
- case VIDIOC_G_STD:
- case VIDIOC_S_STD: {
- v4l2_std_id s;
+ if (exiting(tcp)) {
+ tprints(", type=");
+ printxval(v4l2_control_types, c.type, "V4L2_CTRL_TYPE_???");
+ PRINT_FIELD_CSTRING(", ", c, name);
+ tprintf(", minimum=%d, maximum=%d, step=%d"
+ ", default_value=%d, flags=",
+ c.minimum, c.maximum, c.step, c.default_value);
+ printflags(v4l2_control_flags, c.flags, "V4L2_CTRL_FLAG_???");
+ tprints("}");
+ }
+ return entering(tcp) ? 0 : RVAL_IOCTL_DECODED;
+}
- if (code == VIDIOC_G_STD && exiting(tcp) && syserror(tcp))
- return 0;
- if (umove(tcp, arg, &s) < 0)
+static int
+print_v4l2_cropcap(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_cropcap c;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &c))
+ return RVAL_IOCTL_DECODED;
+ tprints("{type=");
+ printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
+
+ return 0;
+ }
+
+ if (!syserror(tcp) && !umove(tcp, arg, &c)) {
+ tprintf(", bounds=" FMT_RECT
+ ", defrect=" FMT_RECT
+ ", pixelaspect=" FMT_FRACT,
+ ARGS_RECT(c.bounds),
+ ARGS_RECT(c.defrect),
+ ARGS_FRACT(c.pixelaspect));
+ }
+
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
+
+static int
+print_v4l2_crop(struct tcb *const tcp, const kernel_ulong_t arg,
+ const bool is_get)
+{
+ struct v4l2_crop c;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &c))
+ return RVAL_IOCTL_DECODED;
+ tprints("{type=");
+ printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
+ if (is_get)
return 0;
- if ((code == VIDIOC_S_STD) == entering(tcp))
- tprintf(", std=%#llx", s);
- return 1;
+ tprintf(", c=" FMT_RECT, ARGS_RECT(c.c));
+ } else {
+ if (!syserror(tcp) && !umove(tcp, arg, &c))
+ tprintf(", c=" FMT_RECT, ARGS_RECT(c.c));
}
- case VIDIOC_ENUMINPUT: {
- struct v4l2_input i;
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
+
+#ifdef VIDIOC_S_EXT_CTRLS
+static bool
+print_v4l2_ext_control(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
+{
+ const struct_v4l2_ext_control *p = elem_buf;
+
+ tprints("{id=");
+ printxval(v4l2_control_ids, p->id, "V4L2_CID_???");
+# if HAVE_STRUCT_V4L2_EXT_CONTROL_STRING
+ tprintf(", size=%u", p->size);
+ if (p->size > 0) {
+ tprints(", string=");
+ printstrn(tcp, ptr_to_kulong(p->string), p->size);
+ } else
+# endif
+ tprintf(", value=%d, value64=%" PRId64, p->value, (int64_t) p->value64);
+ tprints("}");
+
+ return true;
+}
- if (entering(tcp) || umove(tcp, arg, &i) < 0)
+static int
+print_v4l2_ext_controls(struct tcb *const tcp, const kernel_ulong_t arg,
+ const bool is_get)
+{
+ struct_v4l2_ext_controls c;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &c))
+ return RVAL_IOCTL_DECODED;
+ tprints("{ctrl_class=");
+ printxval(v4l2_control_classes, c.ctrl_class,
+ "V4L2_CTRL_CLASS_???");
+ tprintf(", count=%u", c.count);
+ if (!c.count) {
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
+ }
+ if (is_get)
return 0;
- tprintf(", {index=%i", i.index);
- if (!syserror(tcp)) {
- tprints(", name=");
- print_quoted_string((const char *) i.name,
- sizeof(i.name), QUOTE_0_TERMINATED);
- tprints(", type=");
- printxval(v4l2_input_types, i.type,
- "V4L2_INPUT_TYPE_???");
+ tprints(", ");
+ } else {
+ if (umove(tcp, arg, &c) < 0) {
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
}
+ tprints(is_get ? ", " : " => ");
+ }
+
+ tprints("controls=");
+ struct_v4l2_ext_control ctrl;
+ bool fail = !print_array(tcp, ptr_to_kulong(c.controls), c.count,
+ &ctrl, sizeof(ctrl),
+ tfetch_mem_ignore_syserror,
+ print_v4l2_ext_control, 0);
+
+ if (exiting(tcp) && syserror(tcp))
+ tprintf(", error_idx=%u", c.error_idx);
+
+ if (exiting(tcp) || fail) {
tprints("}");
- return 1;
+ return RVAL_IOCTL_DECODED;
}
- case VIDIOC_G_INPUT:
- case VIDIOC_S_INPUT: {
- int index;
+ /* entering */
+ return 0;
+}
+#endif /* VIDIOC_S_EXT_CTRLS */
- if (entering(tcp) || syserror(tcp) || umove(tcp, arg, &index) < 0)
- return 0;
+#ifdef VIDIOC_ENUM_FRAMESIZES
+# include "xlat/v4l2_framesize_types.h"
- tprintf(", index=%i", index);
- return 1;
+static int
+print_v4l2_frmsizeenum(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_frmsizeenum s;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &s))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{index=%u, pixel_format=", s.index);
+ print_pixelformat(s.pixel_format, v4l2_pix_fmts);
+ return 0;
}
+ if (!syserror(tcp) && !umove(tcp, arg, &s)) {
+ tprints(", type=");
+ printxval(v4l2_framesize_types, s.type, "V4L2_FRMSIZE_TYPE_???");
+ switch (s.type) {
+ case V4L2_FRMSIZE_TYPE_DISCRETE:
+ tprintf(", discrete={width=%u, height=%u}",
+ s.discrete.width, s.discrete.height);
+ break;
+ case V4L2_FRMSIZE_TYPE_STEPWISE:
+ tprintf(", stepwise={min_width=%u, max_width=%u, "
+ "step_width=%u, min_height=%u, max_height=%u, "
+ "step_height=%u}",
+ s.stepwise.min_width, s.stepwise.max_width,
+ s.stepwise.step_width, s.stepwise.min_height,
+ s.stepwise.max_height, s.stepwise.step_height);
+ break;
+ }
+ }
+ tprints("}");
+ return RVAL_IOCTL_DECODED;
+}
+#endif /* VIDIOC_ENUM_FRAMESIZES */
+
#ifdef VIDIOC_ENUM_FRAMEINTERVALS
- case VIDIOC_ENUM_FRAMEINTERVALS: {
- struct v4l2_frmivalenum f;
+# include "xlat/v4l2_frameinterval_types.h"
- if (entering(tcp) || umove(tcp, arg, &f) < 0)
- return 0;
- tprintf(", {index=%i, pixel_format=", f.index);
- print_pixelformat(f.pixel_format);
+static int
+print_v4l2_frmivalenum(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ struct v4l2_frmivalenum f;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &f))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{index=%u, pixel_format=", f.index);
+ print_pixelformat(f.pixel_format, v4l2_pix_fmts);
tprintf(", width=%u, height=%u", f.width, f.height);
- if (!syserror(tcp)) {
- tprints(", type=");
- printxval(v4l2_frameinterval_types, f.type,
- "V4L2_FRMIVAL_TYPE_???");
- switch (f.type) {
- case V4L2_FRMIVAL_TYPE_DISCRETE:
- tprintf(", discrete=" FMT_FRACT,
- ARGS_FRACT(f.discrete));
- break;
- case V4L2_FRMIVAL_TYPE_STEPWISE:
- case V4L2_FRMSIZE_TYPE_CONTINUOUS:
- tprintf(", stepwise={min=" FMT_FRACT ", max="
- FMT_FRACT ", step=" FMT_FRACT "}",
- ARGS_FRACT(f.stepwise.min),
- ARGS_FRACT(f.stepwise.max),
- ARGS_FRACT(f.stepwise.step));
- break;
- }
+ return 0;
+ }
+
+ if (!syserror(tcp) && !umove(tcp, arg, &f)) {
+ tprints(", type=");
+ printxval(v4l2_frameinterval_types, f.type,
+ "V4L2_FRMIVAL_TYPE_???");
+ switch (f.type) {
+ case V4L2_FRMIVAL_TYPE_DISCRETE:
+ tprintf(", discrete=" FMT_FRACT,
+ ARGS_FRACT(f.discrete));
+ break;
+ case V4L2_FRMIVAL_TYPE_STEPWISE:
+ case V4L2_FRMSIZE_TYPE_CONTINUOUS:
+ tprintf(", stepwise={min=" FMT_FRACT ", max="
+ FMT_FRACT ", step=" FMT_FRACT "}",
+ ARGS_FRACT(f.stepwise.min),
+ ARGS_FRACT(f.stepwise.max),
+ ARGS_FRACT(f.stepwise.step));
+ break;
}
- tprints("}");
- return 1;
}
+
+ tprints("}");
+
+ return RVAL_IOCTL_DECODED;
+}
#endif /* VIDIOC_ENUM_FRAMEINTERVALS */
- case VIDIOC_CROPCAP: {
- struct v4l2_cropcap c;
+#ifdef VIDIOC_CREATE_BUFS
+static int
+print_v4l2_create_buffers(struct tcb *const tcp, const kernel_ulong_t arg)
+{
+ static const char fmt[] = "{index=%u, count=%u}";
+ static char outstr[sizeof(fmt) + sizeof(int) * 6];
- if (entering(tcp) || umove(tcp, arg, &c) < 0)
- return 0;
- tprints(", type=");
- printxval(v4l2_buf_types, c.type, "V4L2_BUF_TYPE_???");
- if (syserror(tcp))
- return 1;
- tprintf(", bounds=" FMT_RECT ", defrect=" FMT_RECT ", "
- "pixelaspect=" FMT_FRACT, ARGS_RECT(c.bounds),
- ARGS_RECT(c.defrect), ARGS_FRACT(c.pixelaspect));
- return 1;
+ struct_v4l2_create_buffers b;
+
+ if (entering(tcp)) {
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &b))
+ return RVAL_IOCTL_DECODED;
+ tprintf("{count=%u, memory=", b.count);
+ printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
+ tprints(", format={type=");
+ printxval(v4l2_buf_types, b.format.type,
+ "V4L2_BUF_TYPE_???");
+ print_v4l2_format_fmt(tcp, ", ",
+ (struct_v4l2_format *) &b.format);
+ tprints("}}");
+ return 0;
}
- case VIDIOC_G_FBUF:
- case VIDIOC_S_FBUF: {
- struct v4l2_framebuffer b;
+ if (syserror(tcp) || umove(tcp, arg, &b))
+ return RVAL_IOCTL_DECODED;
- if (syserror(tcp) && code == VIDIOC_G_FBUF)
- return 0;
- if (entering(tcp) || umove(tcp, arg, &b) < 0)
- return 0;
- tprintf(", {capability=%x, flags=%x, base=%p}",
- b.capability, b.flags, b.base);
- return 1;
- }
+ xsprintf(outstr, fmt, b.index, b.count);
+ tcp->auxstr = outstr;
- case VIDIOC_REQBUFS: {
- struct v4l2_requestbuffers reqbufs;
+ return RVAL_IOCTL_DECODED | RVAL_STR;
+}
+#endif /* VIDIOC_CREATE_BUFS */
- if (umove(tcp, arg, &reqbufs) < 0)
+MPERS_PRINTER_DECL(int, v4l2_ioctl, struct tcb *const tcp,
+ const unsigned int code, const kernel_ulong_t arg)
+{
+ if (!verbose(tcp))
+ return RVAL_DECODED;
+
+ switch (code) {
+ case VIDIOC_QUERYCAP: /* R */
+ return print_v4l2_capability(tcp, arg);
+
+ case VIDIOC_ENUM_FMT: /* RW */
+ return print_v4l2_fmtdesc(tcp, arg);
+
+ case VIDIOC_G_FMT: /* RW */
+ case VIDIOC_S_FMT: /* RW */
+ case VIDIOC_TRY_FMT: /* RW */
+ return print_v4l2_format(tcp, arg, code == VIDIOC_G_FMT);
+
+ case VIDIOC_REQBUFS: /* RW */
+ return print_v4l2_requestbuffers(tcp, arg);
+
+ case VIDIOC_QUERYBUF: /* RW */
+ case VIDIOC_QBUF: /* RW */
+ case VIDIOC_DQBUF: /* RW */
+ return print_v4l2_buffer(tcp, code, arg);
+
+ case VIDIOC_G_FBUF: /* R */
+ if (entering(tcp))
return 0;
- if (entering(tcp)) {
- tprintf(", {count=%u, type=", reqbufs.count);
- printxval(v4l2_buf_types, reqbufs.type, "V4L2_BUF_TYPE_???");
- tprints(", memory=");
- printxval(v4l2_memories, reqbufs.memory, "V4L2_MEMORY_???");
- tprints("}");
- return 1;
- } else if (syserror(tcp))
- return 1;
- else {
- static char outstr[sizeof("{count=}") + sizeof(int) * 3];
-
- sprintf(outstr, "{count=%u}", reqbufs.count);
- tcp->auxstr = outstr;
- return 1 + RVAL_STR;
- }
- }
+ ATTRIBUTE_FALLTHROUGH;
+ case VIDIOC_S_FBUF: /* W */
+ return print_v4l2_framebuffer(tcp, arg);
+
+ case VIDIOC_STREAMON: /* W */
+ case VIDIOC_STREAMOFF: /* W */
+ return print_v4l2_buf_type(tcp, arg);
- case VIDIOC_QUERYBUF:
- case VIDIOC_QBUF:
- case VIDIOC_DQBUF: {
- struct v4l2_buffer b;
+ case VIDIOC_G_PARM: /* RW */
+ case VIDIOC_S_PARM: /* RW */
+ return print_v4l2_streamparm(tcp, arg, code == VIDIOC_G_PARM);
- if (umove(tcp, arg, &b) < 0)
+ case VIDIOC_G_STD: /* R */
+ if (entering(tcp))
return 0;
- if (entering(tcp)) {
- tprints(", {type=");
- printxval(v4l2_buf_types, b.type, "V4L2_BUF_TYPE_???");
- if (code != VIDIOC_DQBUF)
- tprintf(", index=%u", b.index);
- } else {
- if (!syserror(tcp)) {
- if (code == VIDIOC_DQBUF)
- tprintf(", index=%u", b.index);
- tprints(", memory=");
- printxval(v4l2_memories, b.memory, "V4L2_MEMORY_???");
-
- if (b.memory == V4L2_MEMORY_MMAP) {
- tprintf(", m.offset=%#x", b.m.offset);
- } else if (b.memory == V4L2_MEMORY_USERPTR) {
- tprintf(", m.userptr=%#lx", b.m.userptr);
- }
-
- tprintf(", length=%u, bytesused=%u, flags=",
- b.length, b.bytesused);
- printflags(v4l2_buf_flags, b.flags, "V4L2_BUF_FLAG_???");
- if (code == VIDIOC_DQBUF)
- tprintf(", timestamp = {%lu.%06lu}",
- b.timestamp.tv_sec,
- b.timestamp.tv_usec);
- tprints(", ...");
- }
- tprints("}");
- }
- return 1;
- }
+ ATTRIBUTE_FALLTHROUGH;
+ case VIDIOC_S_STD: /* W */
+ tprints(", ");
+ printnum_int64(tcp, arg, "%#" PRIx64);
+ break;
+
+ case VIDIOC_ENUMSTD: /* RW */
+ return print_v4l2_standard(tcp, arg);
- case VIDIOC_STREAMON:
- case VIDIOC_STREAMOFF: {
- int type;
+ case VIDIOC_ENUMINPUT: /* RW */
+ return print_v4l2_input(tcp, arg);
- if (umove(tcp, arg, &type) < 0)
+ case VIDIOC_G_CTRL: /* RW */
+ case VIDIOC_S_CTRL: /* RW */
+ return print_v4l2_control(tcp, arg, code == VIDIOC_G_CTRL);
+
+ case VIDIOC_G_TUNER: /* RW */
+ case VIDIOC_S_TUNER: /* RW */
+ return print_v4l2_tuner(tcp, arg, code == VIDIOC_G_TUNER);
+
+ case VIDIOC_QUERYCTRL: /* RW */
+ return print_v4l2_queryctrl(tcp, arg);
+
+ case VIDIOC_G_INPUT: /* R */
+ if (entering(tcp))
return 0;
- if (entering(tcp)) {
- tprints(", ");
- printxval(v4l2_buf_types, type, "V4L2_BUF_TYPE_???");
- }
- return 1;
- }
+ ATTRIBUTE_FALLTHROUGH;
+ case VIDIOC_S_INPUT: /* RW */
+ tprints(", ");
+ printnum_int(tcp, arg, "%u");
+ break;
- default: /* decode on exit */
- return 0;
+ case VIDIOC_CROPCAP: /* RW */
+ return print_v4l2_cropcap(tcp, arg);
+
+ case VIDIOC_G_CROP: /* RW */
+ case VIDIOC_S_CROP: /* W */
+ return print_v4l2_crop(tcp, arg, code == VIDIOC_G_CROP);
+
+#ifdef VIDIOC_S_EXT_CTRLS
+ case VIDIOC_S_EXT_CTRLS: /* RW */
+ case VIDIOC_TRY_EXT_CTRLS: /* RW */
+ case VIDIOC_G_EXT_CTRLS: /* RW */
+ return print_v4l2_ext_controls(tcp, arg,
+ code == VIDIOC_G_EXT_CTRLS);
+#endif /* VIDIOC_S_EXT_CTRLS */
+
+#ifdef VIDIOC_ENUM_FRAMESIZES
+ case VIDIOC_ENUM_FRAMESIZES: /* RW */
+ return print_v4l2_frmsizeenum(tcp, arg);
+#endif /* VIDIOC_ENUM_FRAMESIZES */
+
+#ifdef VIDIOC_ENUM_FRAMEINTERVALS
+ case VIDIOC_ENUM_FRAMEINTERVALS: /* RW */
+ return print_v4l2_frmivalenum(tcp, arg);
+#endif /* VIDIOC_ENUM_FRAMEINTERVALS */
+
+#ifdef VIDIOC_CREATE_BUFS
+ case VIDIOC_CREATE_BUFS: /* RW */
+ return print_v4l2_create_buffers(tcp, arg);
+#endif /* VIDIOC_CREATE_BUFS */
+
+ default:
+ return RVAL_DECODED;
}
+
+ return RVAL_IOCTL_DECODED;
}
projects / strace / blobdiff