提交 60747ef4 编写于 作者: D David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Minor overlapping changes for both merge conflicts.

Resolution work done by Stephen Rothwell was used
as a reference.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

要显示的变更太多。

To preserve performance only 1000 of 1000+ files are displayed.
......@@ -96,7 +96,13 @@ Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@web.de>
Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
Mark Brown <broonie@sirena.org.uk>
Matthieu CASTET <castet.matthieu@free.fr>
Mauro Carvalho Chehab <mchehab@kernel.org> <maurochehab@gmail.com> <mchehab@infradead.org> <mchehab@redhat.com> <m.chehab@samsung.com> <mchehab@osg.samsung.com> <mchehab@s-opensource.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@brturbo.com.br>
Mauro Carvalho Chehab <mchehab@kernel.org> <maurochehab@gmail.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@infradead.org>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@redhat.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <m.chehab@samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@osg.samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
Matt Ranostay <mranostay@gmail.com> Matthew Ranostay <mranostay@embeddedalley.com>
Matt Ranostay <mranostay@gmail.com> <matt.ranostay@intel.com>
Mayuresh Janorkar <mayur@ti.com>
......@@ -132,7 +138,10 @@ Santosh Shilimkar <santosh.shilimkar@oracle.org>
Sascha Hauer <s.hauer@pengutronix.de>
S.Çağlar Onur <caglar@pardus.org.tr>
Shiraz Hashim <shiraz.linux.kernel@gmail.com> <shiraz.hashim@st.com>
Shuah Khan <shuah@kernel.org> <shuahkhan@gmail.com> <shuah.khan@hp.com> <shuahkh@osg.samsung.com> <shuah.kh@samsung.com>
Shuah Khan <shuah@kernel.org> <shuahkhan@gmail.com>
Shuah Khan <shuah@kernel.org> <shuah.khan@hp.com>
Shuah Khan <shuah@kernel.org> <shuahkh@osg.samsung.com>
Shuah Khan <shuah@kernel.org> <shuah.kh@samsung.com>
Simon Kelley <simon@thekelleys.org.uk>
Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
Stephen Hemminger <shemminger@osdl.org>
......
......@@ -77,3 +77,12 @@ Description:
Enable/disable the PWM signal.
0 is disabled
1 is enabled
What: /sys/class/pwm/pwmchipN/pwmX/capture
Date: June 2016
KernelVersion: 4.8
Contact: Lee Jones <lee.jones@linaro.org>
Description:
Capture information about a PWM signal. The output format is a
pair unsigned integers (period and duty cycle), separated by a
single space.
......@@ -369,35 +369,32 @@ See also dma_map_single().
dma_addr_t
dma_map_single_attrs(struct device *dev, void *cpu_addr, size_t size,
enum dma_data_direction dir,
struct dma_attrs *attrs)
unsigned long attrs)
void
dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction dir,
struct dma_attrs *attrs)
unsigned long attrs)
int
dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
int nents, enum dma_data_direction dir,
struct dma_attrs *attrs)
unsigned long attrs)
void
dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl,
int nents, enum dma_data_direction dir,
struct dma_attrs *attrs)
unsigned long attrs)
The four functions above are just like the counterpart functions
without the _attrs suffixes, except that they pass an optional
struct dma_attrs*.
struct dma_attrs encapsulates a set of "DMA attributes". For the
definition of struct dma_attrs see linux/dma-attrs.h.
dma_attrs.
The interpretation of DMA attributes is architecture-specific, and
each attribute should be documented in Documentation/DMA-attributes.txt.
If struct dma_attrs* is NULL, the semantics of each of these
functions is identical to those of the corresponding function
If dma_attrs are 0, the semantics of each of these functions
is identical to those of the corresponding function
without the _attrs suffix. As a result dma_map_single_attrs()
can generally replace dma_map_single(), etc.
......@@ -405,15 +402,15 @@ As an example of the use of the *_attrs functions, here's how
you could pass an attribute DMA_ATTR_FOO when mapping memory
for DMA:
#include <linux/dma-attrs.h>
/* DMA_ATTR_FOO should be defined in linux/dma-attrs.h and
#include <linux/dma-mapping.h>
/* DMA_ATTR_FOO should be defined in linux/dma-mapping.h and
* documented in Documentation/DMA-attributes.txt */
...
DEFINE_DMA_ATTRS(attrs);
dma_set_attr(DMA_ATTR_FOO, &attrs);
unsigned long attr;
attr |= DMA_ATTR_FOO;
....
n = dma_map_sg_attrs(dev, sg, nents, DMA_TO_DEVICE, &attr);
n = dma_map_sg_attrs(dev, sg, nents, DMA_TO_DEVICE, attr);
....
Architectures that care about DMA_ATTR_FOO would check for its
......@@ -422,12 +419,10 @@ routines, e.g.:
void whizco_dma_map_sg_attrs(struct device *dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction dir,
struct dma_attrs *attrs)
unsigned long attrs)
{
....
int foo = dma_get_attr(DMA_ATTR_FOO, attrs);
....
if (foo)
if (attrs & DMA_ATTR_FOO)
/* twizzle the frobnozzle */
....
......
......@@ -2,7 +2,7 @@
==============
This document describes the semantics of the DMA attributes that are
defined in linux/dma-attrs.h.
defined in linux/dma-mapping.h.
DMA_ATTR_WRITE_BARRIER
----------------------
......
......@@ -6,8 +6,6 @@
# To add a new book the only step required is to add the book to the
# list of DOCBOOKS.
ifeq ($(IGNORE_DOCBOOKS),)
DOCBOOKS := z8530book.xml device-drivers.xml \
kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
writing_usb_driver.xml networking.xml \
......@@ -16,10 +14,16 @@ DOCBOOKS := z8530book.xml device-drivers.xml \
genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
80211.xml debugobjects.xml sh.xml regulator.xml \
alsa-driver-api.xml writing-an-alsa-driver.xml \
tracepoint.xml media_api.xml w1.xml \
tracepoint.xml w1.xml \
writing_musb_glue_layer.xml crypto-API.xml iio.xml
include Documentation/DocBook/media/Makefile
ifeq ($(DOCBOOKS),)
# Skip DocBook build if the user explicitly requested no DOCBOOKS.
.DEFAULT:
@echo " SKIP DocBook $@ target (DOCBOOKS=\"\" specified)."
else
###
# The build process is as follows (targets):
......@@ -49,7 +53,6 @@ pdfdocs: $(PDF)
HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
htmldocs: $(HTML)
$(call cmd,build_main_index)
$(call install_media_images)
MAN := $(patsubst %.xml, %.9, $(BOOKS))
mandocs: $(MAN)
......@@ -217,19 +220,7 @@ silent_gen_xml = :
-e "s/>/\\&gt;/g"; \
echo "</programlisting>") > $@
else
# Needed, due to cleanmediadocs
include Documentation/DocBook/media/Makefile
htmldocs:
pdfdocs:
psdocs:
xmldocs:
installmandocs:
endif # IGNORE_DOCBOOKS
endif # DOCBOOKS=""
###
# Help targets as used by the top-level makefile
......@@ -246,7 +237,7 @@ dochelp:
@echo ' make DOCBOOKS="s1.xml s2.xml" [target] Generate only docs s1.xml s2.xml'
@echo ' valid values for DOCBOOKS are: $(DOCBOOKS)'
@echo
@echo " make IGNORE_DOCBOOKS=1 [target] Don't generate docs from Docbook"
@echo " make DOCBOOKS=\"\" [target] Don't generate docs from Docbook"
@echo ' This is useful to generate only the ReST docs (Sphinx)'
......@@ -269,7 +260,7 @@ clean-files := $(DOCBOOKS) \
clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
cleandocs: cleanmediadocs
cleandocs:
$(Q)rm -f $(call objectify, $(clean-files))
$(Q)rm -rf $(call objectify, $(clean-dirs))
......
###
# Media build rules - Auto-generates media contents/indexes and *.h xml's
#
SHELL=/bin/bash
MEDIA_OBJ_DIR=$(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 -f `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 "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/cec.h) \
$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
DEFINES = \
$(shell perl -ne 'print "$$1 " if /\#define\s+(DTV_[^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
TYPES = \
$(shell perl -ne 'print "$$1 " if /^typedef\s+.*\s+(\S+)\;/' $(srctree)/include/uapi/linux/videodev2.h) \
$(shell perl -ne 'print "$$1 " if /^typedef\s+.*\s+(\S+)\;/' $(srctree)/include/uapi/linux/dvb/frontend.h)
ENUMS = \
$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' \
$(srctree)/include/uapi/linux/videodev2.h \
$(srctree)/include/uapi/linux/dvb/audio.h \
$(srctree)/include/uapi/linux/dvb/ca.h \
$(srctree)/include/uapi/linux/dvb/dmx.h \
$(srctree)/include/uapi/linux/dvb/frontend.h \
$(srctree)/include/uapi/linux/dvb/net.h \
$(srctree)/include/uapi/linux/dvb/video.h \
$(srctree)/include/uapi/linux/media.h \
$(srctree)/include/uapi/linux/v4l2-mediabus.h \
$(srctree)/include/uapi/linux/v4l2-subdev.h)
ENUM_DEFS = \
$(shell perl -e 'open IN,"cat @ARGV| cpp -fpreprocessed |"; while (<IN>) { if ($$enum) {print "$$1\n" if (/\s*([A-Z]\S+)\b/); } $$enum = 0 if ($$enum && /^\}/); $$enum = 1 if(/^\s*enum\s/); }; close IN;' \
$(srctree)/include/uapi/linux/dvb/dmx.h \
$(srctree)/include/uapi/linux/dvb/frontend.h)
STRUCTS = \
$(shell perl -ne 'print "$$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 "$$1 " if (/^struct\s+([^\s]+)\s+/ && !/_old/)' $(srctree)/include/uapi/linux/dvb/net.h) \
$(shell perl -ne 'print "$$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/linux/cec.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,\(struct\s\+\)\([a-z0-9_]\+\)\(\s\+{\),\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,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \
-e "s,<link\s\+linkend=\".*\">\(__.*_OLD\)<\/link>,\1,g" \
-e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g" \
-e "s,<link\s\+linkend=\".*\">\(DTV_ISDBS_TS_ID_LEGACY\|DTV_MAX_COMMAND\|DTV_IOCTL_MAX_MSGS\)<\/link>,\1,g" \
#
# Media targets and dependencies
#
install_media_images = \
$(Q)if [ "x$(findstring media_api.xml,$(DOCBOOKS))" != "x" ]; then \
mkdir -p $(MEDIA_OBJ_DIR)/media_api; \
cp $(OBJIMGFILES) $(MEDIA_SRC_DIR)/*.svg $(MEDIA_SRC_DIR)/v4l/*.svg $(MEDIA_OBJ_DIR)/media_api; \
fi
$(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>") > $@
@( \
for ident in $(ENUM_DEFS) ; do \
entity=`echo $$ident | tr _ -` ; \
r="$$r s/([^\w\-])$$ident([^\w\-])/\1\&$$entity\;\2/g;";\
done; \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/' | \
perl -ne "$$r print $$_;") >> $@
@( \
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>") > $@
@( \
for ident in $(ENUM_DEFS) ; do \
entity=`echo $$ident | tr _ -` ; \
r="$$r s/([^\w\-])$$ident([^\w\-])/\1\&$$entity\;\2/g;";\
done; \
expand --tabs=8 < $< | \
sed $(ESCAPE) $(DVB_DOCUMENTED) | \
sed 's/i\.e\./&ie;/' | \
perl -ne "$$r print $$_;") >> $@
@( \
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 `echo $(IOCTLS) | sed -e "s,VIDIOC_RESERVED,,"`; do\
entity=`echo $$ident | tr _ -` ; \
id=`grep -e "<refname>$$ident" -e "<section id=\"$$ident\"" $$(find $(MEDIA_SRC_DIR) -name *.xml -type f)| sed -r s,"^.*/(.*).xml.*","\1",` ; \
if [ "$$id" != "" ]; then echo "<!ENTITY $$entity \"<link" \
"linkend='$$id'><constant>$$ident</constant></link>\">" \
>>$@ ; else \
echo "Warning: undocumented ioctl: $$ident. Please document it at the media DocBook!" >&2; \
fi; \
done)
@( \
echo -e "\n<!-- Defines -->") >>$@
@( \
for ident in $(DEFINES) ; do \
entity=`echo $$ident | tr _ -` ; \
echo "<!ENTITY $$entity \"<link" \
"linkend='$$entity'><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'>$$ident</link>\">" >>$@ ; \
done)
@( \
echo -e "\n<!-- Enum definitions -->") >>$@
@( \
for ident in $(ENUM_DEFS) ; do \
entity=`echo $$ident | tr _ -` ; \
echo "<!ENTITY $$entity \"<link" \
"linkend='$$entity'><constant>$$ident</constant></link>\">" \
>>$@ ; \
done)
@( \
echo -e "\n<!-- Structures -->") >>$@
@( \
for ident in $(STRUCTS) ; do \
entity=`echo $$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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此差异已折叠。
<title>DVB CA Device</title>
<para>The DVB CA device controls the conditional access hardware. It can be accessed through
<constant>/dev/dvb/adapter?/ca?</constant>. Data types and and ioctl definitions can be accessed by
including <constant>linux/dvb/ca.h</constant> in your application.
</para>
<section id="ca_data_types">
<title>CA Data Types</title>
<section id="ca-slot-info">
<title>ca_slot_info_t</title>
<programlisting>
typedef struct ca_slot_info {
int num; /&#x22C6; slot number &#x22C6;/
int type; /&#x22C6; CA interface this slot supports &#x22C6;/
#define CA_CI 1 /&#x22C6; CI high level interface &#x22C6;/
#define CA_CI_LINK 2 /&#x22C6; CI link layer level interface &#x22C6;/
#define CA_CI_PHYS 4 /&#x22C6; CI physical layer level interface &#x22C6;/
#define CA_DESCR 8 /&#x22C6; built-in descrambler &#x22C6;/
#define CA_SC 128 /&#x22C6; simple smart card interface &#x22C6;/
unsigned int flags;
#define CA_CI_MODULE_PRESENT 1 /&#x22C6; module (or card) inserted &#x22C6;/
#define CA_CI_MODULE_READY 2
} ca_slot_info_t;
</programlisting>
</section>
<section id="ca-descr-info">
<title>ca_descr_info_t</title>
<programlisting>
typedef struct ca_descr_info {
unsigned int num; /&#x22C6; number of available descramblers (keys) &#x22C6;/
unsigned int type; /&#x22C6; type of supported scrambling system &#x22C6;/
#define CA_ECD 1
#define CA_NDS 2
#define CA_DSS 4
} ca_descr_info_t;
</programlisting>
</section>
<section id="ca-caps">
<title>ca_caps_t</title>
<programlisting>
typedef struct ca_caps {
unsigned int slot_num; /&#x22C6; total number of CA card and module slots &#x22C6;/
unsigned int slot_type; /&#x22C6; OR of all supported types &#x22C6;/
unsigned int descr_num; /&#x22C6; total number of descrambler slots (keys) &#x22C6;/
unsigned int descr_type;/&#x22C6; OR of all supported types &#x22C6;/
} ca_cap_t;
</programlisting>
</section>
<section id="ca-msg">
<title>ca_msg_t</title>
<programlisting>
/&#x22C6; a message to/from a CI-CAM &#x22C6;/
typedef struct ca_msg {
unsigned int index;
unsigned int type;
unsigned int length;
unsigned char msg[256];
} ca_msg_t;
</programlisting>
</section>
<section id="ca-descr">
<title>ca_descr_t</title>
<programlisting>
typedef struct ca_descr {
unsigned int index;
unsigned int parity;
unsigned char cw[8];
} ca_descr_t;
</programlisting>
</section>
<section id="ca-pid">
<title>ca-pid</title>
<programlisting>
typedef struct ca_pid {
unsigned int pid;
int index; /&#x22C6; -1 == disable&#x22C6;/
} ca_pid_t;
</programlisting>
</section></section>
<section id="ca_function_calls">
<title>CA Function Calls</title>
<section id="ca_fopen">
<title>open()</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This system call opens a named ca device (e.g. /dev/ost/ca) for subsequent use.</para>
<para>When an open() call has succeeded, the device will be ready for use.
The significance of blocking or non-blocking mode is described in the
documentation for functions where there is a difference. It does not affect the
semantics of the open() call itself. A device opened in blocking mode can later
be put into non-blocking mode (and vice versa) using the F_SETFL command
of the fcntl system call. This is a standard system call, documented in the Linux
manual page for fcntl. Only one user can open the CA Device in O_RDWR
mode. All other attempts to open the device in this mode will fail, and an error
code will be returned.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int open(const char &#x22C6;deviceName, int flags);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>const char
*deviceName</para>
</entry><entry
align="char">
<para>Name of specific video device.</para>
</entry>
</row><row><entry
align="char">
<para>int flags</para>
</entry><entry
align="char">
<para>A bit-wise OR of the following flags:</para>
</entry>
</row><row><entry
align="char">
</entry><entry
align="char">
<para>O_RDONLY read-only access</para>
</entry>
</row><row><entry
align="char">
</entry><entry
align="char">
<para>O_RDWR read/write access</para>
</entry>
</row><row><entry
align="char">
</entry><entry
align="char">
<para>O_NONBLOCK open in non-blocking mode</para>
</entry>
</row><row><entry
align="char">
</entry><entry
align="char">
<para>(blocking mode is the default)</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>RETURN VALUE</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>ENODEV</para>
</entry><entry
align="char">
<para>Device driver not loaded/available.</para>
</entry>
</row><row><entry
align="char">
<para>EINTERNAL</para>
</entry><entry
align="char">
<para>Internal error.</para>
</entry>
</row><row><entry
align="char">
<para>EBUSY</para>
</entry><entry
align="char">
<para>Device or resource busy.</para>
</entry>
</row><row><entry
align="char">
<para>EINVAL</para>
</entry><entry
align="char">
<para>Invalid argument.</para>
</entry>
</row></tbody></tgroup></informaltable>
</section>
<section id="ca_fclose">
<title>close()</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This system call closes a previously opened audio device.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int close(int fd);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>RETURN VALUE</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>EBADF</para>
</entry><entry
align="char">
<para>fd is not a valid open file descriptor.</para>
</entry>
</row></tbody></tgroup></informaltable>
</section>
<section id="CA_RESET"
role="subsection"><title>CA_RESET</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_RESET);
</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_RESET for this command.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_GET_CAP"
role="subsection"><title>CA_GET_CAP</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_GET_CAP,
ca_caps_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_GET_CAP for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_caps_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_GET_SLOT_INFO"
role="subsection"><title>CA_GET_SLOT_INFO</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_GET_SLOT_INFO,
ca_slot_info_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_GET_SLOT_INFO for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_slot_info_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_GET_DESCR_INFO"
role="subsection"><title>CA_GET_DESCR_INFO</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_GET_DESCR_INFO,
ca_descr_info_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_GET_DESCR_INFO for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_descr_info_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_GET_MSG"
role="subsection"><title>CA_GET_MSG</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_GET_MSG,
ca_msg_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_GET_MSG for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_msg_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_SEND_MSG"
role="subsection"><title>CA_SEND_MSG</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_SEND_MSG,
ca_msg_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_SEND_MSG for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_msg_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_SET_DESCR"
role="subsection"><title>CA_SET_DESCR</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_SET_DESCR,
ca_descr_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_SET_DESCR for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_descr_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
<section id="CA_SET_PID"
role="subsection"><title>CA_SET_PID</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(fd, int request = CA_SET_PID,
ca_pid_t *);</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
align="char">
<para>int fd</para>
</entry><entry
align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
</row><row><entry
align="char">
<para>int request</para>
</entry><entry
align="char">
<para>Equals CA_SET_PID for this command.</para>
</entry>
</row><row><entry
align="char">
<para>ca_pid_t *
</para>
</entry><entry
align="char">
<para>Undocumented.</para>
</entry>
</row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>
</section>
此差异已折叠。
<partinfo>
<authorgroup>
<author>
<firstname>Ralph</firstname>
<surname>Metzler</surname>
<othername role="mi">J. K.</othername>
<affiliation><address><email>rjkm@metzlerbros.de</email></address></affiliation>
</author>
<author>
<firstname>Marcus</firstname>
<surname>Metzler</surname>
<othername role="mi">O. C.</othername>
<affiliation><address><email>rjkm@metzlerbros.de</email></address></affiliation>
</author>
</authorgroup>
<authorgroup>
<author>
<firstname>Mauro</firstname>
<othername role="mi">Carvalho</othername>
<surname>Chehab</surname>
<affiliation><address><email>m.chehab@samsung.com</email></address></affiliation>
<contrib>Ported document to Docbook XML.</contrib>
</author>
</authorgroup>
<copyright>
<year>2002</year>
<year>2003</year>
<holder>Convergence GmbH</holder>
</copyright>
<copyright>
<year>2009-2015</year>
<holder>Mauro Carvalho Chehab</holder>
</copyright>
<revhistory>
<!-- Put document revisions here, newest first. -->
<revision>
<revnumber>2.1.0</revnumber>
<date>2015-05-29</date>
<authorinitials>mcc</authorinitials>
<revremark>
DocBook improvements and cleanups, in order to document the
system calls on a more standard way and provide more description
about the current DVB API.
</revremark>
</revision>
<revision>
<revnumber>2.0.4</revnumber>
<date>2011-05-06</date>
<authorinitials>mcc</authorinitials>
<revremark>
Add more information about DVB APIv5, better describing the frontend GET/SET props ioctl's.
</revremark>
</revision>
<revision>
<revnumber>2.0.3</revnumber>
<date>2010-07-03</date>
<authorinitials>mcc</authorinitials>
<revremark>
Add some frontend capabilities flags, present on kernel, but missing at the specs.
</revremark>
</revision>
<revision>
<revnumber>2.0.2</revnumber>
<date>2009-10-25</date>
<authorinitials>mcc</authorinitials>
<revremark>
documents FE_SET_FRONTEND_TUNE_MODE and FE_DISHETWORK_SEND_LEGACY_CMD ioctls.
</revremark>
</revision>
<revision>
<revnumber>2.0.1</revnumber>
<date>2009-09-16</date>
<authorinitials>mcc</authorinitials>
<revremark>
Added ISDB-T test originally written by Patrick Boettcher
</revremark>
</revision>
<revision>
<revnumber>2.0.0</revnumber>
<date>2009-09-06</date>
<authorinitials>mcc</authorinitials>
<revremark>Conversion from LaTex to DocBook XML. The
contents is the same as the original LaTex version.</revremark>
</revision>
<revision>
<revnumber>1.0.0</revnumber>
<date>2003-07-24</date>
<authorinitials>rjkm</authorinitials>
<revremark>Initial revision on LaTEX.</revremark>
</revision>
</revhistory>
</partinfo>
<title>LINUX DVB API</title>
<subtitle>Version 5.10</subtitle>
<!-- ADD THE CHAPTERS HERE -->
<chapter id="dvb_introdution">
&sub-intro;
</chapter>
<chapter id="dvb_frontend">
&sub-frontend;
</chapter>
<chapter id="dvb_demux">
&sub-demux;
</chapter>
<chapter id="dvb_ca">
&sub-ca;
</chapter>
<chapter id="net">
&sub-net;
</chapter>
<chapter id="legacy_dvb_apis">
<title>DVB Deprecated APIs</title>
<para>The APIs described here are kept only for historical reasons. There's
just one driver for a very legacy hardware that uses this API. No
modern drivers should use it. Instead, audio and video should be using
the V4L2 and ALSA APIs, and the pipelines should be set using the
Media Controller API</para>
<section id="dvb_video">
&sub-video;
</section>
<section id="dvb_audio">
&sub-audio;
</section>
</chapter>
<chapter id="dvb_examples">
&sub-examples;
</chapter>
<!-- END OF CHAPTERS -->
<appendix id="audio_h">
<title>DVB Audio Header File</title>
&sub-audio-h;
</appendix>
<appendix id="ca_h">
<title>DVB Conditional Access Header File</title>
&sub-ca-h;
</appendix>
<appendix id="dmx_h">
<title>DVB Demux Header File</title>
&sub-dmx-h;
</appendix>
<appendix id="frontend_h">
<title>DVB Frontend Header File</title>
&sub-frontend-h;
</appendix>
<appendix id="net_h">
<title>DVB Network Header File</title>
&sub-net-h;
</appendix>
<appendix id="video_h">
<title>DVB Video Header File</title>
&sub-video-h;
</appendix>
<title>Examples</title>
<para>In this section we would like to present some examples for using the DVB API.
</para>
<para>NOTE: This section is out of date, and the code below won't even
compile. Please refer to the
<ulink url="https://linuxtv.org/docs/libdvbv5/index.html">libdvbv5</ulink>
for updated/recommended examples.
</para>
<section id="tuning">
<title>Tuning</title>
<para>We will start with a generic tuning subroutine that uses the frontend and SEC, as well as
the demux devices. The example is given for QPSK tuners, but can easily be adjusted for
QAM.
</para>
<programlisting>
#include &#x003C;sys/ioctl.h&#x003E;
#include &#x003C;stdio.h&#x003E;
#include &#x003C;stdint.h&#x003E;
#include &#x003C;sys/types.h&#x003E;
#include &#x003C;sys/stat.h&#x003E;
#include &#x003C;fcntl.h&#x003E;
#include &#x003C;time.h&#x003E;
#include &#x003C;unistd.h&#x003E;
#include &#x003C;linux/dvb/dmx.h&#x003E;
#include &#x003C;linux/dvb/frontend.h&#x003E;
#include &#x003C;linux/dvb/sec.h&#x003E;
#include &#x003C;sys/poll.h&#x003E;
#define DMX "/dev/dvb/adapter0/demux1"
#define FRONT "/dev/dvb/adapter0/frontend1"
#define SEC "/dev/dvb/adapter0/sec1"
/&#x22C6; routine for checking if we have a signal and other status information&#x22C6;/
int FEReadStatus(int fd, fe_status_t &#x22C6;stat)
{
int ans;
if ( (ans = ioctl(fd,FE_READ_STATUS,stat) &#x003C; 0)){
perror("FE READ STATUS: ");
return -1;
}
if (&#x22C6;stat &amp; FE_HAS_POWER)
printf("FE HAS POWER\n");
if (&#x22C6;stat &amp; FE_HAS_SIGNAL)
printf("FE HAS SIGNAL\n");
if (&#x22C6;stat &amp; FE_SPECTRUM_INV)
printf("SPEKTRUM INV\n");
return 0;
}
/&#x22C6; tune qpsk &#x22C6;/
/&#x22C6; freq: frequency of transponder &#x22C6;/
/&#x22C6; vpid, apid, tpid: PIDs of video, audio and teletext TS packets &#x22C6;/
/&#x22C6; diseqc: DiSEqC address of the used LNB &#x22C6;/
/&#x22C6; pol: Polarisation &#x22C6;/
/&#x22C6; srate: Symbol Rate &#x22C6;/
/&#x22C6; fec. FEC &#x22C6;/
/&#x22C6; lnb_lof1: local frequency of lower LNB band &#x22C6;/
/&#x22C6; lnb_lof2: local frequency of upper LNB band &#x22C6;/
/&#x22C6; lnb_slof: switch frequency of LNB &#x22C6;/
int set_qpsk_channel(int freq, int vpid, int apid, int tpid,
int diseqc, int pol, int srate, int fec, int lnb_lof1,
int lnb_lof2, int lnb_slof)
{
struct secCommand scmd;
struct secCmdSequence scmds;
struct dmx_pes_filter_params pesFilterParams;
FrontendParameters frp;
struct pollfd pfd[1];
FrontendEvent event;
int demux1, demux2, demux3, front;
frequency = (uint32_t) freq;
symbolrate = (uint32_t) srate;
if((front = open(FRONT,O_RDWR)) &#x003C; 0){
perror("FRONTEND DEVICE: ");
return -1;
}
if((sec = open(SEC,O_RDWR)) &#x003C; 0){
perror("SEC DEVICE: ");
return -1;
}
if (demux1 &#x003C; 0){
if ((demux1=open(DMX, O_RDWR|O_NONBLOCK))
&#x003C; 0){
perror("DEMUX DEVICE: ");
return -1;
}
}
if (demux2 &#x003C; 0){
if ((demux2=open(DMX, O_RDWR|O_NONBLOCK))
&#x003C; 0){
perror("DEMUX DEVICE: ");
return -1;
}
}
if (demux3 &#x003C; 0){
if ((demux3=open(DMX, O_RDWR|O_NONBLOCK))
&#x003C; 0){
perror("DEMUX DEVICE: ");
return -1;
}
}
if (freq &#x003C; lnb_slof) {
frp.Frequency = (freq - lnb_lof1);
scmds.continuousTone = SEC_TONE_OFF;
} else {
frp.Frequency = (freq - lnb_lof2);
scmds.continuousTone = SEC_TONE_ON;
}
frp.Inversion = INVERSION_AUTO;
if (pol) scmds.voltage = SEC_VOLTAGE_18;
else scmds.voltage = SEC_VOLTAGE_13;
scmd.type=0;
scmd.u.diseqc.addr=0x10;
scmd.u.diseqc.cmd=0x38;
scmd.u.diseqc.numParams=1;
scmd.u.diseqc.params[0] = 0xF0 | ((diseqc &#x22C6; 4) &amp; 0x0F) |
(scmds.continuousTone == SEC_TONE_ON ? 1 : 0) |
(scmds.voltage==SEC_VOLTAGE_18 ? 2 : 0);
scmds.miniCommand=SEC_MINI_NONE;
scmds.numCommands=1;
scmds.commands=&amp;scmd;
if (ioctl(sec, SEC_SEND_SEQUENCE, &amp;scmds) &#x003C; 0){
perror("SEC SEND: ");
return -1;
}
if (ioctl(sec, SEC_SEND_SEQUENCE, &amp;scmds) &#x003C; 0){
perror("SEC SEND: ");
return -1;
}
frp.u.qpsk.SymbolRate = srate;
frp.u.qpsk.FEC_inner = fec;
if (ioctl(front, FE_SET_FRONTEND, &amp;frp) &#x003C; 0){
perror("QPSK TUNE: ");
return -1;
}
pfd[0].fd = front;
pfd[0].events = POLLIN;
if (poll(pfd,1,3000)){
if (pfd[0].revents &amp; POLLIN){
printf("Getting QPSK event\n");
if ( ioctl(front, FE_GET_EVENT, &amp;event)
== -EOVERFLOW){
perror("qpsk get event");
return -1;
}
printf("Received ");
switch(event.type){
case FE_UNEXPECTED_EV:
printf("unexpected event\n");
return -1;
case FE_FAILURE_EV:
printf("failure event\n");
return -1;
case FE_COMPLETION_EV:
printf("completion event\n");
}
}
}
pesFilterParams.pid = vpid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_DECODER;
pesFilterParams.pes_type = DMX_PES_VIDEO;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(demux1, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
perror("set_vpid");
return -1;
}
pesFilterParams.pid = apid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_DECODER;
pesFilterParams.pes_type = DMX_PES_AUDIO;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(demux2, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
perror("set_apid");
return -1;
}
pesFilterParams.pid = tpid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_DECODER;
pesFilterParams.pes_type = DMX_PES_TELETEXT;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(demux3, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
perror("set_tpid");
return -1;
}
return has_signal(fds);
}
</programlisting>
<para>The program assumes that you are using a universal LNB and a standard DiSEqC
switch with up to 4 addresses. Of course, you could build in some more checking if
tuning was successful and maybe try to repeat the tuning process. Depending on the
external hardware, i.e. LNB and DiSEqC switch, and weather conditions this may be
necessary.
</para>
</section>
<section id="the_dvr_device">
<title>The DVR device</title>
<para>The following program code shows how to use the DVR device for recording.
</para>
<programlisting>
#include &#x003C;sys/ioctl.h&#x003E;
#include &#x003C;stdio.h&#x003E;
#include &#x003C;stdint.h&#x003E;
#include &#x003C;sys/types.h&#x003E;
#include &#x003C;sys/stat.h&#x003E;
#include &#x003C;fcntl.h&#x003E;
#include &#x003C;time.h&#x003E;
#include &#x003C;unistd.h&#x003E;
#include &#x003C;linux/dvb/dmx.h&#x003E;
#include &#x003C;linux/dvb/video.h&#x003E;
#include &#x003C;sys/poll.h&#x003E;
#define DVR "/dev/dvb/adapter0/dvr1"
#define AUDIO "/dev/dvb/adapter0/audio1"
#define VIDEO "/dev/dvb/adapter0/video1"
#define BUFFY (188&#x22C6;20)
#define MAX_LENGTH (1024&#x22C6;1024&#x22C6;5) /&#x22C6; record 5MB &#x22C6;/
/&#x22C6; switch the demuxes to recording, assuming the transponder is tuned &#x22C6;/
/&#x22C6; demux1, demux2: file descriptor of video and audio filters &#x22C6;/
/&#x22C6; vpid, apid: PIDs of video and audio channels &#x22C6;/
int switch_to_record(int demux1, int demux2, uint16_t vpid, uint16_t apid)
{
struct dmx_pes_filter_params pesFilterParams;
if (demux1 &#x003C; 0){
if ((demux1=open(DMX, O_RDWR|O_NONBLOCK))
&#x003C; 0){
perror("DEMUX DEVICE: ");
return -1;
}
}
if (demux2 &#x003C; 0){
if ((demux2=open(DMX, O_RDWR|O_NONBLOCK))
&#x003C; 0){
perror("DEMUX DEVICE: ");
return -1;
}
}
pesFilterParams.pid = vpid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_TS_TAP;
pesFilterParams.pes_type = DMX_PES_VIDEO;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(demux1, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
perror("DEMUX DEVICE");
return -1;
}
pesFilterParams.pid = apid;
pesFilterParams.input = DMX_IN_FRONTEND;
pesFilterParams.output = DMX_OUT_TS_TAP;
pesFilterParams.pes_type = DMX_PES_AUDIO;
pesFilterParams.flags = DMX_IMMEDIATE_START;
if (ioctl(demux2, DMX_SET_PES_FILTER, &amp;pesFilterParams) &#x003C; 0){
perror("DEMUX DEVICE");
return -1;
}
return 0;
}
/&#x22C6; start recording MAX_LENGTH , assuming the transponder is tuned &#x22C6;/
/&#x22C6; demux1, demux2: file descriptor of video and audio filters &#x22C6;/
/&#x22C6; vpid, apid: PIDs of video and audio channels &#x22C6;/
int record_dvr(int demux1, int demux2, uint16_t vpid, uint16_t apid)
{
int i;
int len;
int written;
uint8_t buf[BUFFY];
uint64_t length;
struct pollfd pfd[1];
int dvr, dvr_out;
/&#x22C6; open dvr device &#x22C6;/
if ((dvr = open(DVR, O_RDONLY|O_NONBLOCK)) &#x003C; 0){
perror("DVR DEVICE");
return -1;
}
/&#x22C6; switch video and audio demuxes to dvr &#x22C6;/
printf ("Switching dvr on\n");
i = switch_to_record(demux1, demux2, vpid, apid);
printf("finished: ");
printf("Recording %2.0f MB of test file in TS format\n",
MAX_LENGTH/(1024.0&#x22C6;1024.0));
length = 0;
/&#x22C6; open output file &#x22C6;/
if ((dvr_out = open(DVR_FILE,O_WRONLY|O_CREAT
|O_TRUNC, S_IRUSR|S_IWUSR
|S_IRGRP|S_IWGRP|S_IROTH|
S_IWOTH)) &#x003C; 0){
perror("Can't open file for dvr test");
return -1;
}
pfd[0].fd = dvr;
pfd[0].events = POLLIN;
/&#x22C6; poll for dvr data and write to file &#x22C6;/
while (length &#x003C; MAX_LENGTH ) {
if (poll(pfd,1,1)){
if (pfd[0].revents &amp; POLLIN){
len = read(dvr, buf, BUFFY);
if (len &#x003C; 0){
perror("recording");
return -1;
}
if (len &#x003E; 0){
written = 0;
while (written &#x003C; len)
written +=
write (dvr_out,
buf, len);
length += len;
printf("written %2.0f MB\r",
length/1024./1024.);
}
}
}
}
return 0;
}
</programlisting>
</section>
<refentry id="FE_DISEQC_RECV_SLAVE_REPLY">
<refmeta>
<refentrytitle>ioctl FE_DISEQC_RECV_SLAVE_REPLY</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>FE_DISEQC_RECV_SLAVE_REPLY</refname>
<refpurpose>Receives reply from a DiSEqC 2.0 command</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>struct dvb_diseqc_slave_reply *<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fe_fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>FE_DISEQC_RECV_SLAVE_REPLY</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para>pointer to &dvb-diseqc-slave-reply;</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>Receives reply from a DiSEqC 2.0 command.</para>
&return-value-dvb;
<table pgwide="1" frame="none" id="dvb-diseqc-slave-reply">
<title>struct <structname>dvb_diseqc_slave_reply</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>uint8_t</entry>
<entry>msg[4]</entry>
<entry>DiSEqC message (framing, data[3])</entry>
</row><row>
<entry>uint8_t</entry>
<entry>msg_len</entry>
<entry>Length of the DiSEqC message. Valid values are 0 to 4,
where 0 means no msg</entry>
</row><row>
<entry>int</entry>
<entry>timeout</entry>
<entry>Return from ioctl after timeout ms with errorcode when no
message was received</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
</refentry>
<refentry id="FE_DISEQC_RESET_OVERLOAD">
<refmeta>
<refentrytitle>ioctl FE_DISEQC_RESET_OVERLOAD</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>FE_DISEQC_RESET_OVERLOAD</refname>
<refpurpose>Restores the power to the antenna subsystem, if it was powered
off due to power overload.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>NULL</paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fe_fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>FE_DISEQC_RESET_OVERLOAD</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>If the bus has been automatically powered off due to power overload, this ioctl
call restores the power to the bus. The call requires read/write access to the
device. This call has no effect if the device is manually powered off. Not all
DVB adapters support this ioctl.</para>
&return-value-dvb;
</refsect1>
</refentry>
<refentry id="FE_DISEQC_SEND_BURST">
<refmeta>
<refentrytitle>ioctl FE_DISEQC_SEND_BURST</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>FE_DISEQC_SEND_BURST</refname>
<refpurpose>Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>enum fe_sec_mini_cmd *<parameter>tone</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fe_fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>FE_DISEQC_SEND_BURST</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>tone</parameter></term>
<listitem>
<para>pointer to &fe-sec-mini-cmd;</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>This ioctl is used to set the generation of a 22kHz tone burst for mini
DiSEqC satellite
selection for 2x1 switches.
This call requires read/write permissions.</para>
<para>It provides support for what's specified at
<ulink url="http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf">Digital Satellite Equipment Control
(DiSEqC) - Simple "ToneBurst" Detection Circuit specification.</ulink>
</para>
&return-value-dvb;
</refsect1>
<refsect1 id="fe-sec-mini-cmd-t">
<title>enum fe_sec_mini_cmd</title>
<table pgwide="1" frame="none" id="fe-sec-mini-cmd">
<title>enum fe_sec_mini_cmd</title>
<tgroup cols="2">
&cs-def;
<thead>
<row>
<entry>ID</entry>
<entry>Description</entry>
</row>
</thead>
<tbody valign="top">
<row>
<entry align="char" id="SEC-MINI-A"><constant>SEC_MINI_A</constant></entry>
<entry align="char">Sends a mini-DiSEqC 22kHz '0' Tone Burst to
select satellite-A</entry>
</row><row>
<entry align="char" id="SEC-MINI-B"><constant>SEC_MINI_B</constant></entry>
<entry align="char">Sends a mini-DiSEqC 22kHz '1' Data Burst to
select satellite-B</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
</refentry>
<refentry id="FE_DISEQC_SEND_MASTER_CMD">
<refmeta>
<refentrytitle>ioctl FE_DISEQC_SEND_MASTER_CMD</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>FE_DISEQC_SEND_MASTER_CMD</refname>
<refpurpose>Sends a DiSEqC command</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>struct dvb_diseqc_master_cmd *<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fe_fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>FE_DISEQC_SEND_MASTER_CMD</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para>pointer to &dvb-diseqc-master-cmd;</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>Sends a DiSEqC command to the antenna subsystem.</para>
&return-value-dvb;
<table pgwide="1" frame="none" id="dvb-diseqc-master-cmd">
<title>struct <structname>dvb_diseqc_master_cmd</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>uint8_t</entry>
<entry>msg[6]</entry>
<entry>DiSEqC message (framing, address, command, data[3])</entry>
</row><row>
<entry>uint8_t</entry>
<entry>msg_len</entry>
<entry>Length of the DiSEqC message. Valid values are 3 to 6</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
</refentry>
<refentry id="FE_ENABLE_HIGH_LNB_VOLTAGE">
<refmeta>
<refentrytitle>ioctl FE_ENABLE_HIGH_LNB_VOLTAGE</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>FE_ENABLE_HIGH_LNB_VOLTAGE</refname>
<refpurpose>Select output DC level between normal LNBf voltages or higher
LNBf voltages.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>unsigned int <parameter>high</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fe_fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>FE_ENABLE_HIGH_LNB_VOLTAGE</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>high</parameter></term>
<listitem>
<para>Valid flags:</para>
<itemizedlist>
<listitem><para>0 - normal 13V and 18V.</para></listitem>
<listitem><para>&gt;0 - enables slightly higher voltages instead of
13/18V, in order to compensate for long antenna cables.</para></listitem>
</itemizedlist>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>Select output DC level between normal LNBf voltages or higher
LNBf voltages between 0 (normal) or a value grater than 0 for higher
voltages.</para>
&return-value-dvb;
</refsect1>
</refentry>
<refentry id="FE_GET_PROPERTY">
<refmeta>
<refentrytitle>ioctl FE_SET_PROPERTY, FE_GET_PROPERTY</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>FE_SET_PROPERTY</refname>
<refname>FE_GET_PROPERTY</refname>
<refpurpose>FE_SET_PROPERTY sets one or more frontend properties.
FE_GET_PROPERTY returns one or more frontend properties.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>struct dtv_properties *<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fe_fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>FE_SET_PROPERTY, FE_GET_PROPERTY</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para>pointer to &dtv-properties;</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>All DVB frontend devices support the
<constant>FE_SET_PROPERTY</constant> and <constant>FE_GET_PROPERTY</constant>
ioctls. The supported properties and statistics depends on the delivery system
and on the device:</para>
<itemizedlist>
<listitem>
<para><constant>FE_SET_PROPERTY:</constant></para>
<itemizedlist>
<listitem><para>This ioctl is used to set one or more
frontend properties.</para></listitem>
<listitem><para>This is the basic command to request the frontend to tune into some
frequency and to start decoding the digital TV signal.</para></listitem>
<listitem><para>This call requires read/write access to the device.</para></listitem>
<listitem><para>At return, the values are updated to reflect the
actual parameters used.</para></listitem>
</itemizedlist>
</listitem>
<listitem>
<para><constant>FE_GET_PROPERTY:</constant></para>
<itemizedlist>
<listitem><para>This ioctl is used to get properties and
statistics from the frontend.</para></listitem>
<listitem><para>No properties are changed, and statistics aren't reset.</para></listitem>
<listitem><para>This call only requires read-only access to the device.</para></listitem>
</itemizedlist>
</listitem>
</itemizedlist>
&return-value-dvb;
</refsect1>
</refentry>
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