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linux_dsm_epyc7002/Documentation/DocBook/media/Makefile
Laurent Pinchart d52e238136 [media] v4l: Support extending the v4l2_pix_format structure 
The v4l2_pix_format structure has no reserved field. It is embedded in
the v4l2_framebuffer structure which has no reserved fields either, and
in the v4l2_format structure which has reserved fields that were not
previously required to be zeroed out by applications.

To allow extending v4l2_pix_format, inline it in the v4l2_framebuffer
structure, and use the priv field as a magic value to indicate that the
application has set all v4l2_pix_format extended fields and zeroed all
reserved fields following the v4l2_pix_format field in the v4l2_format
structure.

The availability of this API extension is reported to userspace through
the new V4L2_CAP_EXT_PIX_FORMAT capability flag. Just checking that the
priv field is still set to the magic value at [GS]_FMT return wouldn't
be enough, as older kernels don't zero the priv field on return.

To simplify the internal API towards drivers zero the extended fields
and set the priv field to the magic value for applications not aware of
the extensions.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-17 12:44:47 -03:00

389 lines
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###
# Media build rules - Auto-generates media contents/indexes and *.h xml's
#
SHELL=/bin/bash
MEDIA_OBJ_DIR=$(objtree)/Documentation/DocBook/
MEDIA_SRC_DIR=$(srctree)/Documentation/DocBook/media
MEDIA_TEMP = media-entities.tmpl \
media-indices.tmpl \
videodev2.h.xml \
v4l2.xml \
audio.h.xml \
ca.h.xml \
dmx.h.xml \
frontend.h.xml \
net.h.xml \
video.h.xml \
IMGFILES := $(patsubst %.b64,%, $(notdir $(shell ls $(MEDIA_SRC_DIR)/*.b64)))
OBJIMGFILES := $(addprefix $(MEDIA_OBJ_DIR)/, $(IMGFILES))
GENFILES := $(addprefix $(MEDIA_OBJ_DIR)/, $(MEDIA_TEMP))
PHONY += cleanmediadocs
cleanmediadocs:
-@rm `find $(MEDIA_OBJ_DIR) -type l` $(GENFILES) $(OBJIMGFILES) 2>/dev/null
$(obj)/media_api.xml: $(GENFILES) FORCE
#$(MEDIA_OBJ_DIR)/media_api.html: $(MEDIA_OBJ_DIR)/media_api.xml
#$(MEDIA_OBJ_DIR)/media_api.pdf: $(MEDIA_OBJ_DIR)/media_api.xml
#$(MEDIA_OBJ_DIR)/media_api.ps: $(MEDIA_OBJ_DIR)/media_api.xml
V4L_SGMLS = \
$(shell ls $(MEDIA_SRC_DIR)/v4l/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)') \
capture.c.xml \
keytable.c.xml \
v4l2grab.c.xml
DVB_SGMLS = \
$(shell ls $(MEDIA_SRC_DIR)/dvb/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)')
MEDIA_SGMLS = $(addprefix ./,$(V4L_SGMLS)) $(addprefix ./,$(DVB_SGMLS)) $(addprefix ./,$(MEDIA_TEMP))
FUNCS = \
close \
ioctl \
mmap \
munmap \
open \
poll \
read \
select \
write \
IOCTLS = \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/audio.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/ca.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/dmx.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([A-Z][^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/net.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/video.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/media.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
VIDIOC_SUBDEV_G_FRAME_INTERVAL \
VIDIOC_SUBDEV_S_FRAME_INTERVAL \
VIDIOC_SUBDEV_ENUM_MBUS_CODE \
VIDIOC_SUBDEV_ENUM_FRAME_SIZE \
VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \
VIDIOC_SUBDEV_G_SELECTION \
VIDIOC_SUBDEV_S_SELECTION \
TYPES = \
$(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/uapi/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /^}\s+([a-z0-9_]+_t)/' $(srctree)/include/uapi/linux/dvb/frontend.h)
ENUMS = \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/audio.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/ca.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/dmx.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/net.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/video.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-mediabus.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h)
STRUCTS = \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s\{]+)\s*/)' $(srctree)/include/uapi/linux/dvb/audio.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/ca.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/dmx.h) \
$(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/frontend.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([A-Z][^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/net.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/video.h) \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-mediabus.h)
ERRORS = \
E2BIG \
EACCES \
EAGAIN \
EBADF \
EBADFD \
EBADR \
EBADRQC \
EBUSY \
ECHILD \
ECONNRESET \
EDEADLK \
EDOM \
EEXIST \
EFAULT \
EFBIG \
EILSEQ \
EINIT \
EINPROGRESS \
EINTR \
EINVAL \
EIO \
EMFILE \
ENFILE \
ENOBUFS \
ENODATA \
ENODEV \
ENOENT \
ENOIOCTLCMD \
ENOMEM \
ENOSPC \
ENOSR \
ENOSYS \
ENOTSUP \
ENOTSUPP \
ENOTTY \
ENXIO \
EOPNOTSUPP \
EOVERFLOW \
EPERM \
EPIPE \
EPROTO \
ERANGE \
EREMOTE \
EREMOTEIO \
ERESTART \
ERESTARTSYS \
ESHUTDOWN \
ESPIPE \
ETIME \
ETIMEDOUT \
EUSERS \
EWOULDBLOCK \
EXDEV \
ESCAPE = \
-e "s/&/\\&amp;/g" \
-e "s/</\\&lt;/g" \
-e "s/>/\\&gt;/g"
FILENAME = \
-e s,"^[^\/]*/",, \
-e s/"\\.xml"// \
-e s/"\\.tmpl"// \
-e s/\\\./-/g \
-e s/"^func-"// \
-e s/"^pixfmt-"// \
-e s/"^vidioc-"//
# Generate references to these structs in videodev2.h.xml.
DOCUMENTED = \
-e "s/\(enum *\)v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1<link linkend=\"\2\">v4l2_mpeg_cx2341x_video_\2<\/link>/g" \
-e "s/\(\(enum\|struct\) *\)\(v4l2_[a-zA-Z0-9_]*\)/\1<link linkend=\"\3\">\3<\/link>/g" \
-e "s/\(V4L2_PIX_FMT_[A-Z0-9_]\+\)\(\s\+v4l2_fourcc\)/<link linkend=\"\1\">\1<\/link>\2/g" \
-e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \
-e "s/v4l2\-mpeg\-vbi\-ITV0/v4l2-mpeg-vbi-itv0-1/g"
DVB_DOCUMENTED = \
-e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g" \
-e "s,\(struct\s\+\)\([a-z0-9_]\+\)\(\s\+{\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
-e "s,\(}\s\+\)\([a-z0-9_]\+_t\+\),\1\<link linkend=\"\2\">\2\<\/link\>,g" \
-e "s,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+[0-9]\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
-e "s,<link\s\+linkend=\".*\">\(DTV_IOCTL_MAX_MSGS\|dtv_cmds_h\|__.*_old\)<\/link>,\1,g" \
-e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \
-e "s,\(audio-mixer\|audio-karaoke\|audio-status\|ca-slot-info\|ca-descr-info\|ca-caps\|ca-msg\|ca-descr\|ca-pid\|dmx-filter\|dmx-caps\|video-system\|video-highlight\|video-spu\|video-spu-palette\|video-navi-pack\)-t,\1,g" \
-e "s,DTV-ISDBT-LAYER[A-C],DTV-ISDBT-LAYER,g" \
-e "s,\(define\s\+\)\([A-Z0-9_]\+\)\(\s\+_IO\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
-e "s,<link\s\+linkend=\".*\">\(__.*_OLD\)<\/link>,\1,g" \
#
# Media targets and dependencies
#
install_media_images = \
$(Q)-cp $(OBJIMGFILES) $(MEDIA_SRC_DIR)/v4l/*.svg $(MEDIA_OBJ_DIR)/media_api
$(MEDIA_OBJ_DIR)/%: $(MEDIA_SRC_DIR)/%.b64
$(Q)base64 -d $< >$@
$(MEDIA_OBJ_DIR)/v4l2.xml: $(OBJIMGFILES)
@$($(quiet)gen_xml)
@(ln -sf `cd $(MEDIA_SRC_DIR) && /bin/pwd`/v4l/*xml $(MEDIA_OBJ_DIR)/)
@(ln -sf `cd $(MEDIA_SRC_DIR) && /bin/pwd`/dvb/*xml $(MEDIA_OBJ_DIR)/)
$(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/uapi/linux/videodev2.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/audio.h.xml: $(srctree)/include/uapi/linux/dvb/audio.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/ca.h.xml: $(srctree)/include/uapi/linux/dvb/ca.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/uapi/linux/dvb/dmx.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/uapi/linux/dvb/frontend.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/net.h.xml: $(srctree)/include/uapi/linux/dvb/net.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/video.h.xml: $(srctree)/include/uapi/linux/dvb/video.h $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<programlisting>") > $@
@( \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/') >> $@
@( \
echo "</programlisting>") >> $@
$(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<!-- Generated file! Do not edit. -->") >$@
@( \
echo -e "\n<!-- Functions -->") >>$@
@( \
for ident in $(FUNCS) ; do \
entity=`echo $$ident | tr _ -` ; \
echo "<!ENTITY func-$$entity \"<link" \
"linkend='func-$$entity'><function>$$ident()</function></link>\">" \
>>$@ ; \
done)
@( \
echo -e "\n<!-- Ioctls -->") >>$@
@( \
for ident in $(IOCTLS) ; do \
entity=`echo $$ident | tr _ -` ; \
id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml $(MEDIA_OBJ_DIR)/media-ioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
echo "<!ENTITY $$entity \"<link" \
"linkend='$$id'><constant>$$ident</constant></link>\">" \
>>$@ ; \
done)
@( \
echo -e "\n<!-- Types -->") >>$@
@( \
for ident in $(TYPES) ; do \
entity=`echo $$ident | tr _ -` ; \
echo "<!ENTITY $$entity \"<link" \
"linkend='$$entity'>$$ident</link>\">" >>$@ ; \
done)
@( \
echo -e "\n<!-- Enums -->") >>$@
@( \
for ident in $(ENUMS) ; do \
entity=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -` ; \
echo "<!ENTITY $$entity \"enum&nbsp;<link" \
"linkend='$$entity'>$$ident</link>\">" >>$@ ; \
done)
@( \
echo -e "\n<!-- Structures -->") >>$@
@( \
for ident in $(STRUCTS) ; do \
entity=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \
echo "<!ENTITY $$entity \"struct&nbsp;<link" \
"linkend='$$entity'>$$ident</link>\">" >>$@ ; \
done)
@( \
echo -e "\n<!-- Error Codes -->") >>$@
@( \
for ident in $(ERRORS) ; do \
echo "<!ENTITY $$ident \"<errorcode>$$ident</errorcode>" \
"error code\">" >>$@ ; \
done)
@( \
echo -e "\n<!-- Subsections -->") >>$@
@( \
for file in $(MEDIA_SGMLS) ; do \
entity=`echo "$$file" | sed $(FILENAME) -e s/"^([^-]*)"/sub\1/` ; \
if ! echo "$$file" | \
grep -q -E -e '^(func|vidioc|pixfmt)-' ; then \
echo "<!ENTITY sub-$$entity SYSTEM \"$$file\">" >>$@ ; \
fi ; \
done)
@( \
echo -e "\n<!-- Function Reference -->") >>$@
@( \
for file in $(MEDIA_SGMLS) ; do \
if echo "$$file" | \
grep -q -E -e '(func|vidioc|pixfmt)-' ; then \
entity=`echo "$$file" |sed $(FILENAME)` ; \
echo "<!ENTITY $$entity SYSTEM \"$$file\">" >>$@ ; \
fi ; \
done)
# Jade can auto-generate a list-of-tables, which includes all structs,
# but we only want data types, all types, and sorted please.
$(MEDIA_OBJ_DIR)/media-indices.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
@$($(quiet)gen_xml)
@( \
echo "<!-- Generated file! Do not edit. -->") >$@
@( \
echo -e "\n<index><title>List of Types</title>") >>$@
@( \
for ident in $(TYPES) ; do \
id=`echo $$ident | tr _ -` ; \
echo "<indexentry><primaryie><link" \
"linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
done)
@( \
for ident in $(ENUMS) ; do \
id=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -`; \
echo "<indexentry><primaryie>enum&nbsp;<link" \
"linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
done)
@( \
for ident in $(STRUCTS) ; do \
id=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \
echo "<indexentry><primaryie>struct&nbsp;<link" \
"linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \
done)
@( \
echo "</index>") >>$@
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