* 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) 2014-2017 The strace developers.
+ * 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 <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+
#include DEF_MPERS_TYPE(struct_v4l2_buffer)
#include DEF_MPERS_TYPE(struct_v4l2_clip)
-#include DEF_MPERS_TYPE(struct_v4l2_create_buffers)
+#ifdef VIDIOC_CREATE_BUFS
+# include DEF_MPERS_TYPE(struct_v4l2_create_buffers)
+#endif
#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_input)
#include DEF_MPERS_TYPE(struct_v4l2_standard)
-#include <stdint.h>
-#include <linux/ioctl.h>
-#include <linux/types.h>
-#include <linux/videodev2.h>
-
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;
#include MPERS_DEFS
#include "print_fields.h"
+#include "print_utils.h"
+#include "xstring.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)
-#endif
-#ifndef V4L2_CID_BAND_STOP_FILTER
-#define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33)
+/* 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 FMT_RECT "{left=%d, top=%d, width=%u, height=%u}"
#define ARGS_RECT(x) (x).left, (x).top, (x).width, (x).height
+#include "xlat/v4l2_pix_fmts.h"
+#include "xlat/v4l2_sdr_fmts.h"
+
static void
-print_pixelformat(uint32_t fourcc)
+print_pixelformat(uint32_t fourcc, const struct xlat *xlat)
{
- const union {
- uint32_t pixelformat;
- unsigned char cc[sizeof(uint32_t)];
- } u = {
-#if WORDS_BIGENDIAN
- .cc = {
- (unsigned char) (fourcc >> 24),
- (unsigned char) (fourcc >> 16),
- (unsigned char) (fourcc >> 8),
- (unsigned char) fourcc
- }
-#else
- .pixelformat = fourcc
-#endif
+ unsigned char a[] = {
+ (unsigned char) fourcc,
+ (unsigned char) (fourcc >> 8),
+ (unsigned char) (fourcc >> 16),
+ (unsigned char) (fourcc >> 24),
};
unsigned int i;
tprints("v4l2_fourcc(");
- for (i = 0; i < sizeof(u.cc); ++i) {
- unsigned char c = u.cc[i];
+ /* Generic char array printing routine. */
+ for (i = 0; i < ARRAY_SIZE(a); ++i) {
+ unsigned char c = a[i];
if (i)
tprints(", ");
'\0'
};
tprints(sym);
- } else if (c >= ' ' && c <= 0x7e) {
+ } else if (is_print(c)) {
char sym[] = {
'\'',
c,
tprints(sym);
} else {
char hex[] = {
- '\'',
- '\\',
- 'x',
- "0123456789abcdef"[c >> 4],
- "0123456789abcdef"[c & 0xf],
- '\'',
+ 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"
caps.version & 0xFF);
printflags(v4l2_device_capabilities_flags, caps.capabilities,
"V4L2_CAP_???");
-#ifdef V4L2_CAP_DEVICE_CAPS
+#ifdef HAVE_STRUCT_V4L2_CAPABILITY_DEVICE_CAPS
tprints(", device_caps=");
printflags(v4l2_device_capabilities_flags, caps.device_caps,
"V4L2_CAP_???");
"V4L2_FMT_FLAG_???");
PRINT_FIELD_CSTRING(", ", f, description);
tprints(", pixelformat=");
- print_pixelformat(f.pixelformat);
+ print_pixelformat(f.pixelformat, v4l2_pix_fmts);
}
tprints("}");
return RVAL_IOCTL_DECODED;
tprints(prefix);
tprintf("fmt.pix={width=%u, height=%u, pixelformat=",
f->fmt.pix.width, f->fmt.pix.height);
- print_pixelformat(f->fmt.pix.pixelformat);
+ print_pixelformat(f->fmt.pix.pixelformat, v4l2_pix_fmts);
tprints(", field=");
printxval(v4l2_fields, f->fmt.pix.field, "V4L2_FIELD_???");
tprintf(", bytesperline=%u, sizeimage=%u, 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: {
unsigned int i, max;
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);
+ print_pixelformat(f->fmt.pix_mp.pixelformat, v4l2_pix_fmts);
tprints(", field=");
printxval(v4l2_fields, f->fmt.pix_mp.field, "V4L2_FIELD_???");
tprints(", colorspace=");
}
#endif
/* OUTPUT_OVERLAY since Linux v2.6.22-rc1~1118^2~179 */
-#if HAVE_DECL_V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY
case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
-#endif
case V4L2_BUF_TYPE_VIDEO_OVERLAY: {
struct_v4l2_clip clip;
tprints(prefix);
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),
- umoven_or_printaddr, print_v4l2_clip, 0);
+ 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
"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);
+ 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("}");
break;
/* both since Linux v2.6.14-rc2~64 */
-#if HAVE_DECL_V4L2_BUF_TYPE_SLICED_VBI_CAPTURE
+#if HAVE_STRUCT_V4L2_FORMAT_FMT_SLICED
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: {
unsigned int i, j;
break;
}
#endif
+#if HAVE_STRUCT_V4L2_FORMAT_FMT_SDR
/* since Linux v4.4-rc1~118^2~14 */
-#if HAVE_DECL_V4L2_BUF_TYPE_SDR_OUTPUT
case V4L2_BUF_TYPE_SDR_OUTPUT:
-#endif
/* since Linux v3.15-rc1~85^2~213 */
-#if HAVE_DECL_V4L2_BUF_TYPE_SDR_CAPTURE
case V4L2_BUF_TYPE_SDR_CAPTURE:
tprints(prefix);
tprints("fmt.sdr={pixelformat=");
- print_pixelformat(f->fmt.sdr.pixelformat);
-#ifdef HAVE_STRUCT_V4L2_SDR_FORMAT_BUFFERSIZE
+ print_pixelformat(f->fmt.sdr.pixelformat, v4l2_sdr_fmts);
+# ifdef HAVE_STRUCT_V4L2_SDR_FORMAT_BUFFERSIZE
tprintf(", buffersize=%u",
f->fmt.sdr.buffersize);
-#endif
+# endif
tprints("}");
break;
#endif
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)
tprints(", ");
if (umove_or_printaddr(tcp, arg, &c))
return RVAL_IOCTL_DECODED;
+
tprints("{id=");
- printxval(v4l2_control_ids, c.id, "V4L2_CID_???");
+ print_v4l2_cid(c.id);
if (!is_get)
tprintf(", value=%d", c.value);
return 0;
const unsigned long next = c.id & V4L2_CTRL_FLAG_NEXT_CTRL;
set_tcb_priv_ulong(tcp, next);
if (next) {
- tprints("V4L2_CTRL_FLAG_NEXT_CTRL|");
+ print_xlat(V4L2_CTRL_FLAG_NEXT_CTRL);
+ tprints("|");
c.id &= ~V4L2_CTRL_FLAG_NEXT_CTRL;
}
#endif
tprints("{id=");
printxval(v4l2_control_ids, p->id, "V4L2_CID_???");
-# if HAVE_DECL_V4L2_CTRL_TYPE_STRING
+# if HAVE_STRUCT_V4L2_EXT_CONTROL_STRING
tprintf(", size=%u", p->size);
if (p->size > 0) {
tprints(", string=");
return true;
}
-#include "xlat/v4l2_control_classes.h"
-
static int
print_v4l2_ext_controls(struct tcb *const tcp, const kernel_ulong_t arg,
const bool is_get)
struct_v4l2_ext_control ctrl;
bool fail = !print_array(tcp, ptr_to_kulong(c.controls), c.count,
&ctrl, sizeof(ctrl),
- umoven_or_printaddr_ignore_syserror,
+ tfetch_mem_ignore_syserror,
print_v4l2_ext_control, 0);
if (exiting(tcp) && syserror(tcp))
if (umove_or_printaddr(tcp, arg, &s))
return RVAL_IOCTL_DECODED;
tprintf("{index=%u, pixel_format=", s.index);
- print_pixelformat(s.pixel_format);
+ print_pixelformat(s.pixel_format, v4l2_pix_fmts);
return 0;
}
if (umove_or_printaddr(tcp, arg, &f))
return RVAL_IOCTL_DECODED;
tprintf("{index=%u, pixel_format=", f.index);
- print_pixelformat(f.pixel_format);
+ print_pixelformat(f.pixel_format, v4l2_pix_fmts);
tprintf(", width=%u, height=%u", f.width, f.height);
return 0;
}
if (syserror(tcp) || umove(tcp, arg, &b))
return RVAL_IOCTL_DECODED;
- sprintf(outstr, fmt, b.index, b.count);
+ xsprintf(outstr, fmt, b.index, b.count);
tcp->auxstr = outstr;
return RVAL_IOCTL_DECODED | RVAL_STR;
case VIDIOC_G_FBUF: /* R */
if (entering(tcp))
return 0;
- /* fall through */
+ ATTRIBUTE_FALLTHROUGH;
case VIDIOC_S_FBUF: /* W */
return print_v4l2_framebuffer(tcp, arg);
case VIDIOC_G_STD: /* R */
if (entering(tcp))
return 0;
- /* fall through */
+ ATTRIBUTE_FALLTHROUGH;
case VIDIOC_S_STD: /* W */
tprints(", ");
printnum_int64(tcp, arg, "%#" PRIx64);
case VIDIOC_G_INPUT: /* R */
if (entering(tcp))
return 0;
- /* fall through */
+ ATTRIBUTE_FALLTHROUGH;
case VIDIOC_S_INPUT: /* RW */
tprints(", ");
printnum_int(tcp, arg, "%u");
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