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linux/Documentation/DocBook/media/Makefile
Sakari Ailus 955f645aea [media] v4l: Add subdev selections documentation 
Add documentation for V4L2 subdev selection API. This changes also
experimental V4L2 subdev API so that scaling now works through selection API
only.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-04-10 17:11:27 -03:00

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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 "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/audio.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/ca.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/dmx.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/frontend.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([A-Z][^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/net.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/video.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/media.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/v4l2-subdev.h) \
VIDIOC_SUBDEV_G_FRAME_INTERVAL \
VIDIOC_SUBDEV_S_FRAME_INTERVAL \
VIDIOC_SUBDEV_ENUM_MBUS_CODE \
VIDIOC_SUBDEV_ENUM_FRAME_SIZE \
VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \
VIDIOC_SUBDEV_G_SELECTION \
VIDIOC_SUBDEV_S_SELECTION \
TYPES = \
$(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /^}\s+([a-z0-9_]+_t)/' $(srctree)/include/linux/dvb/frontend.h)
ENUMS = \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/audio.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/ca.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/dmx.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/frontend.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/net.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/video.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h) \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h)
STRUCTS = \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s\{]+)\s*/)' $(srctree)/include/linux/dvb/audio.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/ca.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/dmx.h) \
$(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/frontend.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([A-Z][^\s]+)\s+/)' $(srctree)/include/linux/dvb/net.h) \
$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/video.h) \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h) \
$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/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/\(V4L2_PIX_FMT_[A-Z0-9_]\+\) /<link linkend=\"\1\">\1<\/link> /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 $(MEDIA_SRC_DIR)/v4l/*xml $(MEDIA_OBJ_DIR)/)
@(ln -sf $(MEDIA_SRC_DIR)/dvb/*xml $(MEDIA_OBJ_DIR)/)
$(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/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/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/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/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/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/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/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 | 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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