Commit 163849ea authored by Mark Brown's avatar Mark Brown

Merge branch 'for-2.6.33' into for-2.6.34

parents 2138301e 5ee518ec

Too many changes to show.

To preserve performance only 1000 of 1000+ files are displayed.

......@@ -22,9 +22,11 @@
*.lst
*.symtypes
*.order
modules.builtin
*.elf
*.bin
*.gz
*.bz2
*.lzma
*.patch
*.gcno
......@@ -44,14 +46,8 @@ Module.symvers
#
# Generated include files
#
include/asm
include/asm-*/asm-offsets.h
include/config
include/linux/autoconf.h
include/linux/compile.h
include/linux/version.h
include/linux/utsrelease.h
include/linux/bounds.h
include/generated
# stgit generated dirs
......
What: /sys/bus/pci/drivers/qla2xxx/.../devices/*
Date: September 2009
Contact: QLogic Linux Driver <linux-driver@qlogic.com>
Description: qla2xxx-udev.sh currently looks for uevent CHANGE events to
signal a firmware-dump has been generated by the driver and is
ready for retrieval.
Users: qla2xxx-udev.sh. Proposed changes should be mailed to
linux-driver@qlogic.com
......@@ -8,7 +8,7 @@ Description:
1 - major number
2 - minor mumber
3 - device name
4 - reads completed succesfully
4 - reads completed successfully
5 - reads merged
6 - sectors read
7 - time spent reading (ms)
......
......@@ -4,7 +4,7 @@ Contact: Jerome Marchand <jmarchan@redhat.com>
Description:
The /sys/block/<disk>/stat files displays the I/O
statistics of disk <disk>. They contain 11 fields:
1 - reads completed succesfully
1 - reads completed successfully
2 - reads merged
3 - sectors read
4 - time spent reading (ms)
......
......@@ -21,25 +21,27 @@ Contact: Alan Stern <stern@rowland.harvard.edu>
Description:
Each USB device directory will contain a file named
power/level. This file holds a power-level setting for
the device, one of "on", "auto", or "suspend".
the device, either "on" or "auto".
"on" means that the device is not allowed to autosuspend,
although normal suspends for system sleep will still
be honored. "auto" means the device will autosuspend
and autoresume in the usual manner, according to the
capabilities of its driver. "suspend" means the device
is forced into a suspended state and it will not autoresume
in response to I/O requests. However remote-wakeup requests
from the device may still be enabled (the remote-wakeup
setting is controlled separately by the power/wakeup
attribute).
capabilities of its driver.
During normal use, devices should be left in the "auto"
level. The other levels are meant for administrative uses.
level. The "on" level is meant for administrative uses.
If you want to suspend a device immediately but leave it
free to wake up in response to I/O requests, you should
write "0" to power/autosuspend.
Device not capable of proper suspend and resume should be
left in the "on" level. Although the USB spec requires
devices to support suspend/resume, many of them do not.
In fact so many don't that by default, the USB core
initializes all non-hub devices in the "on" level. Some
drivers may change this setting when they are bound.
What: /sys/bus/usb/devices/.../power/persist
Date: May 2007
KernelVersion: 2.6.23
......@@ -144,3 +146,16 @@ Description:
Write a 1 to force the device to disconnect
(equivalent to unplugging a wired USB device).
What: /sys/bus/usb/drivers/.../remove_id
Date: November 2009
Contact: CHENG Renquan <rqcheng@smu.edu.sg>
Description:
Writing a device ID to this file will remove an ID
that was dynamically added via the new_id sysfs entry.
The format for the device ID is:
idVendor idProduct. After successfully
removing an ID, the driver will no longer support the
device. This is useful to ensure auto probing won't
match the driver to the device. For example:
# echo "046d c315" > /sys/bus/usb/drivers/foo/remove_id
......@@ -23,3 +23,16 @@ Description:
Since this relates to security (specifically, the
lifetime of PTKs and GTKs) it should not be changed
from the default.
What: /sys/class/uwb_rc/uwbN/wusbhc/wusb_phy_rate
Date: August 2009
KernelVersion: 2.6.32
Contact: David Vrabel <david.vrabel@csr.com>
Description:
The maximum PHY rate to use for all connected devices.
This is only of limited use for testing and
development as the hardware's automatic rate
adaptation is better then this simple control.
Refer to [ECMA-368] section 10.3.1.1 for the value to
use.
......@@ -60,6 +60,19 @@ Description:
Users: hotplug memory remove tools
https://w3.opensource.ibm.com/projects/powerpc-utils/
What: /sys/devices/system/memoryX/nodeY
Date: October 2009
Contact: Linux Memory Management list <linux-mm@kvack.org>
Description:
When CONFIG_NUMA is enabled, a symbolic link that
points to the corresponding NUMA node directory.
For example, the following symbolic link is created for
memory section 9 on node0:
/sys/devices/system/memory/memory9/node0 -> ../../node/node0
What: /sys/devices/system/node/nodeX/memoryY
Date: September 2008
Contact: Gary Hade <garyhade@us.ibm.com>
......@@ -70,4 +83,3 @@ Description:
memory section directory. For example, the following symbolic
link is created for memory section 9 on node0.
/sys/devices/system/node/node0/memory9 -> ../../memory/memory9
......@@ -62,6 +62,35 @@ Description: CPU topology files that describe kernel limits related to
See Documentation/cputopology.txt for more information.
What: /sys/devices/system/cpu/probe
/sys/devices/system/cpu/release
Date: November 2009
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Dynamic addition and removal of CPU's. This is not hotplug
removal, this is meant complete removal/addition of the CPU
from the system.
probe: writes to this file will dynamically add a CPU to the
system. Information written to the file to add CPU's is
architecture specific.
release: writes to this file dynamically remove a CPU from
the system. Information writtento the file to remove CPU's
is architecture specific.
What: /sys/devices/system/cpu/cpu#/node
Date: October 2009
Contact: Linux memory management mailing list <linux-mm@kvack.org>
Description: Discover NUMA node a CPU belongs to
When CONFIG_NUMA is enabled, a symbolic link that points
to the corresponding NUMA node directory.
For example, the following symlink is created for cpu42
in NUMA node 2:
/sys/devices/system/cpu/cpu42/node2 -> ../../node/node2
What: /sys/devices/system/cpu/cpu#/node
Date: October 2009
......@@ -136,6 +165,24 @@ Description: Discover cpuidle policy and mechanism
See files in Documentation/cpuidle/ for more information.
What: /sys/devices/system/cpu/cpu#/cpufreq/*
Date: pre-git history
Contact: cpufreq@vger.kernel.org
Description: Discover and change clock speed of CPUs
Clock scaling allows you to change the clock speed of the
CPUs on the fly. This is a nice method to save battery
power, because the lower the clock speed, the less power
the CPU consumes.
There are many knobs to tweak in this directory.
See files in Documentation/cpu-freq/ for more information.
In particular, read Documentation/cpu-freq/user-guide.txt
to learn how to control the knobs.
What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X
Date: August 2008
KernelVersion: 2.6.27
......
This diff is collapsed.
What: /sys/devices/system/memory/soft_offline_page
Date: Sep 2009
KernelVersion: 2.6.33
Contact: andi@firstfloor.org
Description:
Soft-offline the memory page containing the physical address
written into this file. Input is a hex number specifying the
physical address of the page. The kernel will then attempt
to soft-offline it, by moving the contents elsewhere or
dropping it if possible. The kernel will then be placed
on the bad page list and never be reused.
The offlining is done in kernel specific granuality.
Normally it's the base page size of the kernel, but
this might change.
The page must be still accessible, not poisoned. The
kernel will never kill anything for this, but rather
fail the offline. Return value is the size of the
number, or a error when the offlining failed. Reading
the file is not allowed.
What: /sys/devices/system/memory/hard_offline_page
Date: Sep 2009
KernelVersion: 2.6.33
Contact: andi@firstfloor.org
Description:
Hard-offline the memory page containing the physical
address written into this file. Input is a hex number
specifying the physical address of the page. The
kernel will then attempt to hard-offline the page, by
trying to drop the page or killing any owner or
triggering IO errors if needed. Note this may kill
any processes owning the page. The kernel will avoid
to access this page assuming it's poisoned by the
hardware.
The offlining is done in kernel specific granuality.
Normally it's the base page size of the kernel, but
this might change.
Return value is the size of the number, or a error when
the offlining failed.
Reading the file is not allowed.
......@@ -49,6 +49,8 @@ o oprofile 0.9 # oprofiled --version
o udev 081 # udevinfo -V
o grub 0.93 # grub --version
o mcelog 0.6
o iptables 1.4.1 # iptables -V
Kernel compilation
==================
......
......@@ -214,7 +214,7 @@ most specific mask.
Here is pseudo-code showing how this might be done:
#define PLAYBACK_ADDRESS_BITS DMA_BIT_MASK(32)
#define RECORD_ADDRESS_BITS 0x00ffffff
#define RECORD_ADDRESS_BITS DMA_BIT_MASK(24)
struct my_sound_card *card;
struct pci_dev *pdev;
......@@ -224,14 +224,14 @@ Here is pseudo-code showing how this might be done:
card->playback_enabled = 1;
} else {
card->playback_enabled = 0;
printk(KERN_WARN "%s: Playback disabled due to DMA limitations.\n",
printk(KERN_WARNING "%s: Playback disabled due to DMA limitations.\n",
card->name);
}
if (!pci_set_dma_mask(pdev, RECORD_ADDRESS_BITS)) {
card->record_enabled = 1;
} else {
card->record_enabled = 0;
printk(KERN_WARN "%s: Record disabled due to DMA limitations.\n",
printk(KERN_WARNING "%s: Record disabled due to DMA limitations.\n",
card->name);
}
......
......@@ -8,7 +8,7 @@
DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \
kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
procfs-guide.xml writing_usb_driver.xml networking.xml \
writing_usb_driver.xml networking.xml \
kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \
gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
......@@ -32,10 +32,10 @@ PS_METHOD = $(prefer-db2x)
###
# The targets that may be used.
PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs media
PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs xmldoclinks
BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
xmldocs: $(BOOKS)
xmldocs: $(BOOKS) xmldoclinks
sgmldocs: xmldocs
PS := $(patsubst %.xml, %.ps, $(BOOKS))
......@@ -45,15 +45,24 @@ PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
pdfdocs: $(PDF)
HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
htmldocs: media $(HTML)
htmldocs: $(HTML)
$(call build_main_index)
$(call build_images)
MAN := $(patsubst %.xml, %.9, $(BOOKS))
mandocs: $(MAN)
media:
mkdir -p $(srctree)/Documentation/DocBook/media/
cp $(srctree)/Documentation/DocBook/dvb/*.png $(srctree)/Documentation/DocBook/v4l/*.gif $(srctree)/Documentation/DocBook/media/
build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \
cp $(srctree)/Documentation/DocBook/dvb/*.png $(srctree)/Documentation/DocBook/v4l/*.gif $(objtree)/Documentation/DocBook/media/
xmldoclinks:
ifneq ($(objtree),$(srctree))
for dep in dvb media-entities.tmpl media-indices.tmpl v4l; do \
rm -f $(objtree)/Documentation/DocBook/$$dep \
&& ln -s $(srctree)/Documentation/DocBook/$$dep $(objtree)/Documentation/DocBook/ \
|| exit; \
done
endif
installmandocs: mandocs
mkdir -p /usr/local/man/man9/
......@@ -65,7 +74,7 @@ KERNELDOC = $(srctree)/scripts/kernel-doc
DOCPROC = $(objtree)/scripts/basic/docproc
XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
#XMLTOFLAGS += --skip-validation
XMLTOFLAGS += --skip-validation
###
# DOCPROC is used for two purposes:
......@@ -101,17 +110,6 @@ endif
# Changes in kernel-doc force a rebuild of all documentation
$(BOOKS): $(KERNELDOC)
###
# procfs guide uses a .c file as example code.
# This requires an explicit dependency
C-procfs-example = procfs_example.xml
C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example))
$(obj)/procfs-guide.xml: $(C-procfs-example2)
# List of programs to build
##oops, this is a kernel module::hostprogs-y := procfs_example
obj-m += procfs_example.o
# Tell kbuild to always build the programs
always := $(hostprogs-y)
......@@ -238,7 +236,7 @@ clean-files := $(DOCBOOKS) \
$(patsubst %.xml, %.pdf, $(DOCBOOKS)) \
$(patsubst %.xml, %.html, $(DOCBOOKS)) \
$(patsubst %.xml, %.9, $(DOCBOOKS)) \
$(C-procfs-example) $(index)
$(index)
clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
......
......@@ -293,10 +293,23 @@ X!Idrivers/video/console/fonts.c
<chapter id="input_subsystem">
<title>Input Subsystem</title>
<sect1><title>Input core</title>
!Iinclude/linux/input.h
!Edrivers/input/input.c
!Edrivers/input/ff-core.c
!Edrivers/input/ff-memless.c
</sect1>
<sect1><title>Polled input devices</title>
!Iinclude/linux/input-polldev.h
!Edrivers/input/input-polldev.c
</sect1>
<sect1><title>Matrix keyboars/keypads</title>
!Iinclude/linux/input/matrix_keypad.h
</sect1>
<sect1><title>Sparse keymap support</title>
!Iinclude/linux/input/sparse-keymap.h
!Edrivers/input/sparse-keymap.c
</sect1>
</chapter>
<chapter id="spi">
......
......@@ -29,6 +29,14 @@
<revhistory>
<!-- Put document revisions here, newest first. -->
<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>
......@@ -85,3 +93,8 @@ Added ISDB-T test originally written by Patrick Boettcher
&sub-examples;
</chapter>
<!-- END OF CHAPTERS -->
<appendix id="frontend_h">
<title>DVB Frontend Header File</title>
&sub-frontend-h;
</appendix>
This diff is collapsed.
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......@@ -417,8 +417,8 @@ desc->chip->end();
</para>
<para>
To make use of the split implementation, replace the call to
__do_IRQ by a call to desc->chip->handle_irq() and associate
the appropriate handler function to desc->chip->handle_irq().
__do_IRQ by a call to desc->handle_irq() and associate
the appropriate handler function to desc->handle_irq().
In most cases the generic handler implementations should
be sufficient.
</para>
......
......@@ -352,7 +352,7 @@ asmlinkage long sys_mycall(int arg)
</para>
<programlisting>
if (signal_pending())
if (signal_pending(current))
return -ERESTARTSYS;
</programlisting>
......
......@@ -23,6 +23,7 @@
<!ENTITY VIDIOC-ENUMINPUT "<link linkend='vidioc-enuminput'><constant>VIDIOC_ENUMINPUT</constant></link>">
<!ENTITY VIDIOC-ENUMOUTPUT "<link linkend='vidioc-enumoutput'><constant>VIDIOC_ENUMOUTPUT</constant></link>">
<!ENTITY VIDIOC-ENUMSTD "<link linkend='vidioc-enumstd'><constant>VIDIOC_ENUMSTD</constant></link>">
<!ENTITY VIDIOC-ENUM-DV-PRESETS "<link linkend='vidioc-enum-dv-presets'><constant>VIDIOC_ENUM_DV_PRESETS</constant></link>">
<!ENTITY VIDIOC-ENUM-FMT "<link linkend='vidioc-enum-fmt'><constant>VIDIOC_ENUM_FMT</constant></link>">
<!ENTITY VIDIOC-ENUM-FRAMEINTERVALS "<link linkend='vidioc-enum-frameintervals'><constant>VIDIOC_ENUM_FRAMEINTERVALS</constant></link>">
<!ENTITY VIDIOC-ENUM-FRAMESIZES "<link linkend='vidioc-enum-framesizes'><constant>VIDIOC_ENUM_FRAMESIZES</constant></link>">
......@@ -30,6 +31,8 @@
<!ENTITY VIDIOC-G-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_G_AUDOUT</constant></link>">
<!ENTITY VIDIOC-G-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_G_CROP</constant></link>">
<!ENTITY VIDIOC-G-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_G_CTRL</constant></link>">
<!ENTITY VIDIOC-G-DV-PRESET "<link linkend='vidioc-g-dv-preset'><constant>VIDIOC_G_DV_PRESET</constant></link>">
<!ENTITY VIDIOC-G-DV-TIMINGS "<link linkend='vidioc-g-dv-timings'><constant>VIDIOC_G_DV_TIMINGS</constant></link>">
<!ENTITY VIDIOC-G-ENC-INDEX "<link linkend='vidioc-g-enc-index'><constant>VIDIOC_G_ENC_INDEX</constant></link>">
<!ENTITY VIDIOC-G-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_G_EXT_CTRLS</constant></link>">
<!ENTITY VIDIOC-G-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_G_FBUF</constant></link>">
......@@ -53,6 +56,7 @@
<!ENTITY VIDIOC-QUERYCTRL "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYCTRL</constant></link>">
<!ENTITY VIDIOC-QUERYMENU "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYMENU</constant></link>">
<!ENTITY VIDIOC-QUERYSTD "<link linkend='vidioc-querystd'><constant>VIDIOC_QUERYSTD</constant></link>">
<!ENTITY VIDIOC-QUERY-DV-PRESET "<link linkend='vidioc-query-dv-preset'><constant>VIDIOC_QUERY_DV_PRESET</constant></link>">
<!ENTITY VIDIOC-REQBUFS "<link linkend='vidioc-reqbufs'><constant>VIDIOC_REQBUFS</constant></link>">
<!ENTITY VIDIOC-STREAMOFF "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMOFF</constant></link>">
<!ENTITY VIDIOC-STREAMON "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMON</constant></link>">
......@@ -60,6 +64,8 @@
<!ENTITY VIDIOC-S-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_S_AUDOUT</constant></link>">
<!ENTITY VIDIOC-S-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_S_CROP</constant></link>">
<!ENTITY VIDIOC-S-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_S_CTRL</constant></link>">
<!ENTITY VIDIOC-S-DV-PRESET "<link linkend='vidioc-g-dv-preset'><constant>VIDIOC_S_DV_PRESET</constant></link>">
<!ENTITY VIDIOC-S-DV-TIMINGS "<link linkend='vidioc-g-dv-timings'><constant>VIDIOC_S_DV_TIMINGS</constant></link>">
<!ENTITY VIDIOC-S-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_S_EXT_CTRLS</constant></link>">
<!ENTITY VIDIOC-S-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_S_FBUF</constant></link>">
<!ENTITY VIDIOC-S-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_S_FMT</constant></link>">
......@@ -118,6 +124,7 @@
<!-- Structures -->
<!ENTITY v4l2-audio "struct&nbsp;<link linkend='v4l2-audio'>v4l2_audio</link>">
<!ENTITY v4l2-audioout "struct&nbsp;<link linkend='v4l2-audioout'>v4l2_audioout</link>">
<!ENTITY v4l2-bt-timings "struct&nbsp;<link linkend='v4l2-bt-timings'>v4l2_bt_timings</link>">
<!ENTITY v4l2-buffer "struct&nbsp;<link linkend='v4l2-buffer'>v4l2_buffer</link>">
<!ENTITY v4l2-capability "struct&nbsp;<link linkend='v4l2-capability'>v4l2_capability</link>">
<!ENTITY v4l2-captureparm "struct&nbsp;<link linkend='v4l2-captureparm'>v4l2_captureparm</link>">
......@@ -128,6 +135,9 @@
<!ENTITY v4l2-dbg-chip-ident "struct&nbsp;<link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link>">
<!ENTITY v4l2-dbg-match "struct&nbsp;<link linkend='v4l2-dbg-match'>v4l2_dbg_match</link>">
<!ENTITY v4l2-dbg-register "struct&nbsp;<link linkend='v4l2-dbg-register'>v4l2_dbg_register</link>">
<!ENTITY v4l2-dv-enum-preset "struct&nbsp;<link linkend='v4l2-dv-enum-preset'>v4l2_dv_enum_preset</link>">
<!ENTITY v4l2-dv-preset "struct&nbsp;<link linkend='v4l2-dv-preset'>v4l2_dv_preset</link>">
<!ENTITY v4l2-dv-timings "struct&nbsp;<link linkend='v4l2-dv-timings'>v4l2_dv_timings</link>">
<!ENTITY v4l2-enc-idx "struct&nbsp;<link linkend='v4l2-enc-idx'>v4l2_enc_idx</link>">
<!ENTITY v4l2-enc-idx-entry "struct&nbsp;<link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link>">
<!ENTITY v4l2-encoder-cmd "struct&nbsp;<link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link>">
......@@ -243,6 +253,10 @@
<!ENTITY sub-enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml">
<!ENTITY sub-enuminput SYSTEM "v4l/vidioc-enuminput.xml">
<!ENTITY sub-enumoutput SYSTEM "v4l/vidioc-enumoutput.xml">
<!ENTITY sub-enum-dv-presets SYSTEM "v4l/vidioc-enum-dv-presets.xml">
<!ENTITY sub-g-dv-preset SYSTEM "v4l/vidioc-g-dv-preset.xml">
<!ENTITY sub-query-dv-preset SYSTEM "v4l/vidioc-query-dv-preset.xml">
<!ENTITY sub-g-dv-timings SYSTEM "v4l/vidioc-g-dv-timings.xml">
<!ENTITY sub-enumstd SYSTEM "v4l/vidioc-enumstd.xml">
<!ENTITY sub-g-audio SYSTEM "v4l/vidioc-g-audio.xml">
<!ENTITY sub-g-audioout SYSTEM "v4l/vidioc-g-audioout.xml">
......@@ -280,7 +294,7 @@
<!ENTITY sub-v4l2 SYSTEM "v4l/v4l2.xml">
<!ENTITY sub-intro SYSTEM "dvb/intro.xml">
<!ENTITY sub-frontend SYSTEM "dvb/frontend.xml">
<!ENTITY sub-isdbt SYSTEM "dvb/isdbt.xml">
<!ENTITY sub-dvbproperty SYSTEM "dvb/dvbproperty.xml">
<!ENTITY sub-demux SYSTEM "dvb/demux.xml">
<!ENTITY sub-video SYSTEM "dvb/video.xml">
<!ENTITY sub-audio SYSTEM "dvb/audio.xml">
......@@ -288,6 +302,7 @@
<!ENTITY sub-net SYSTEM "dvb/net.xml">
<!ENTITY sub-kdapi SYSTEM "dvb/kdapi.xml">
<!ENTITY sub-examples SYSTEM "dvb/examples.xml">
<!ENTITY sub-frontend-h SYSTEM "dvb/frontend.h.xml">
<!ENTITY sub-dvbapi SYSTEM "dvb/dvbapi.xml">
<!ENTITY sub-media SYSTEM "media.xml">
<!ENTITY sub-media-entities SYSTEM "media-entities.tmpl">
......@@ -332,6 +347,10 @@
<!ENTITY enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml">
<!ENTITY enuminput SYSTEM "v4l/vidioc-enuminput.xml">
<!ENTITY enumoutput SYSTEM "v4l/vidioc-enumoutput.xml">
<!ENTITY enum-dv-presets SYSTEM "v4l/vidioc-enum-dv-presets.xml">
<!ENTITY g-dv-preset SYSTEM "v4l/vidioc-g-dv-preset.xml">
<!ENTITY query-dv-preset SYSTEM "v4l/vidioc-query-dv-preset.xml">
<!ENTITY g-dv-timings SYSTEM "v4l/vidioc-g-dv-timings.xml">
<!ENTITY enumstd SYSTEM "v4l/vidioc-enumstd.xml">
<!ENTITY g-audio SYSTEM "v4l/vidioc-g-audio.xml">
<!ENTITY g-audioout SYSTEM "v4l/vidioc-g-audioout.xml">
......
......@@ -36,6 +36,7 @@
<indexentry><primaryie>enum&nbsp;<link linkend='v4l2-preemphasis'>v4l2_preemphasis</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-audio'>v4l2_audio</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-audioout'>v4l2_audioout</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-bt-timings'>v4l2_bt_timings</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-buffer'>v4l2_buffer</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-capability'>v4l2_capability</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-captureparm'>v4l2_captureparm</link></primaryie></indexentry>
......@@ -46,6 +47,9 @@
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dbg-match'>v4l2_dbg_match</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dbg-register'>v4l2_dbg_register</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dv-enum-preset'>v4l2_dv_enum_preset</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dv-preset'>v4l2_dv_preset</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-dv-timings'>v4l2_dv_timings</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-enc-idx'>v4l2_enc_idx</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link></primaryie></indexentry>
<indexentry><primaryie>struct&nbsp;<link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link></primaryie></indexentry>
......
......@@ -362,7 +362,7 @@ module_exit(board_cleanup);
<sect1 id="Multiple_chip_control">
<title>Multiple chip control</title>
<para>
The nand driver can control chip arrays. Therefor the
The nand driver can control chip arrays. Therefore the
board driver must provide an own select_chip function. This
function must (de)select the requested chip.
The function pointer in the nand_chip structure must
......
This diff is collapsed.
/*
* procfs_example.c: an example proc interface
*
* Copyright (C) 2001, Erik Mouw (mouw@nl.linux.org)
*
* This file accompanies the procfs-guide in the Linux kernel
* source. Its main use is to demonstrate the concepts and
* functions described in the guide.
*
* This software has been developed while working on the LART
* computing board (http://www.lartmaker.nl), which was sponsored
* by the Delt University of Technology projects Mobile Multi-media
* Communications and Ubiquitous Communications.
*
* This program is free software; you can redistribute
* it and/or modify it under the terms of the GNU General
* Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/jiffies.h>
#include <asm/uaccess.h>
#define MODULE_VERS "1.0"
#define MODULE_NAME "procfs_example"
#define FOOBAR_LEN 8
struct fb_data_t {
char name[FOOBAR_LEN + 1];
char value[FOOBAR_LEN + 1];
};
static struct proc_dir_entry *example_dir, *foo_file,
*bar_file, *jiffies_file, *symlink;
struct fb_data_t foo_data, bar_data;
static int proc_read_jiffies(char *page, char **start,
off_t off, int count,
int *eof, void *data)
{
int len;
len = sprintf(page, "jiffies = %ld\n",
jiffies);
return len;
}
static int proc_read_foobar(char *page, char **start,
off_t off, int count,
int *eof, void *data)
{
int len;
struct fb_data_t *fb_data = (struct fb_data_t *)data;
/* DON'T DO THAT - buffer overruns are bad */
len = sprintf(page, "%s = '%s'\n",
fb_data->name, fb_data->value);
return len;
}
static int proc_write_foobar(struct file *file,
const char *buffer,
unsigned long count,
void *data)
{
int len;
struct fb_data_t *fb_data = (struct fb_data_t *)data;
if(count > FOOBAR_LEN)
len = FOOBAR_LEN;
else
len = count;
if(copy_from_user(fb_data->value, buffer, len))
return -EFAULT;
fb_data->value[len] = '\0';
return len;
}
static int __init init_procfs_example(void)
{
int rv = 0;
/* create directory */
example_dir = proc_mkdir(MODULE_NAME, NULL);
if(example_dir == NULL) {
rv = -ENOMEM;
goto out;
}
/* create jiffies using convenience function */
jiffies_file = create_proc_read_entry("jiffies",
0444, example_dir,
proc_read_jiffies,
NULL);
if(jiffies_file == NULL) {
rv = -ENOMEM;
goto no_jiffies;
}
/* create foo and bar files using same callback
* functions
*/
foo_file = create_proc_entry("foo", 0644, example_dir);
if(foo_file == NULL) {
rv = -ENOMEM;
goto no_foo;
}
strcpy(foo_data.name, "foo");
strcpy(foo_data.value, "foo");
foo_file->data = &foo_data;
foo_file->read_proc = proc_read_foobar;
foo_file->write_proc = proc_write_foobar;
bar_file = create_proc_entry("bar", 0644, example_dir);
if(bar_file == NULL) {
rv = -ENOMEM;
goto no_bar;
}
strcpy(bar_data.name, "bar");
strcpy(bar_data.value, "bar");
bar_file->data = &bar_data;
bar_file->read_proc = proc_read_foobar;
bar_file->write_proc = proc_write_foobar;
/* create symlink */
symlink = proc_symlink("jiffies_too", example_dir,
"jiffies");
if(symlink == NULL) {
rv = -ENOMEM;
goto no_symlink;
}
/* everything OK */
printk(KERN_INFO "%s %s initialised\n",
MODULE_NAME, MODULE_VERS);
return 0;
no_symlink:
remove_proc_entry("bar", example_dir);
no_bar:
remove_proc_entry("foo", example_dir);
no_foo:
remove_proc_entry("jiffies", example_dir);
no_jiffies:
remove_proc_entry(MODULE_NAME, NULL);
out:
return rv;
}
static void __exit cleanup_procfs_example(void)
{
remove_proc_entry("jiffies_too", example_dir);
remove_proc_entry("bar", example_dir);
remove_proc_entry("foo", example_dir);
remove_proc_entry("jiffies", example_dir);
remove_proc_entry(MODULE_NAME, NULL);
printk(KERN_INFO "%s %s removed\n",
MODULE_NAME, MODULE_VERS);
}
module_init(init_procfs_example);
module_exit(cleanup_procfs_example);
MODULE_AUTHOR("Erik Mouw");
MODULE_DESCRIPTION("procfs examples");
MODULE_LICENSE("GPL");
......@@ -86,4 +86,9 @@
!Iinclude/trace/events/irq.h
</chapter>
<chapter id="signal">
<title>SIGNAL</title>
!Iinclude/trace/events/signal.h
</chapter>
</book>
......@@ -716,6 +716,41 @@ if (-1 == ioctl (fd, &VIDIOC-S-STD;, &amp;std_id)) {
}
</programlisting>
</example>
<section id="dv-timings">
<title>Digital Video (DV) Timings</title>
<para>
The video standards discussed so far has been dealing with Analog TV and the
corresponding video timings. Today there are many more different hardware interfaces
such as High Definition TV interfaces (HDMI), VGA, DVI connectors etc., that carry
video signals and there is a need to extend the API to select the video timings
for these interfaces. Since it is not possible to extend the &v4l2-std-id; due to
the limited bits available, a new set of IOCTLs is added to set/get video timings at
the input and output: </para><itemizedlist>
<listitem>
<para>DV Presets: Digital Video (DV) presets. These are IDs representing a
video timing at the input/output. Presets are pre-defined timings implemented
by the hardware according to video standards. A __u32 data type is used to represent
a preset unlike the bit mask that is used in &v4l2-std-id; allowing future extensions
to support as many different presets as needed.</para>
</listitem>
<listitem>
<para>Custom DV Timings: This will allow applications to define more detailed
custom video timings for the interface. This includes parameters such as width, height,
polarities, frontporch, backporch etc.
</para>
</listitem>
</itemizedlist>
<para>To enumerate and query the attributes of DV presets supported by a device,
applications use the &VIDIOC-ENUM-DV-PRESETS; ioctl. To get the current DV preset,
applications use the &VIDIOC-G-DV-PRESET; ioctl and to set a preset they use the
&VIDIOC-S-DV-PRESET; ioctl.</para>
<para>To set custom DV timings for the device, applications use the
&VIDIOC-S-DV-TIMINGS; ioctl and to get current custom DV timings they use the
&VIDIOC-G-DV-TIMINGS; ioctl.</para>
<para>Applications can make use of the <xref linkend="input-capabilities" /> and
<xref linkend="output-capabilities"/> flags to decide what ioctls are available to set the
video timings for the device.</para>
</section>
</section>
&sub-controls;
......
......@@ -2291,8 +2291,8 @@ was renamed to <structname id="v4l2-chip-ident-old">v4l2_chip_ident_old</structn
<listitem>
<para>New control <constant>V4L2_CID_COLORFX</constant> was added.</para>
</listitem>
</orderedlist>
</section>
</orderedlist>
</section>
<section>
<title>V4L2 in Linux 2.6.32</title>
<orderedlist>
......@@ -2322,8 +2322,16 @@ more information.</para>
<listitem>
<para>Added Remote Controller chapter, describing the default Remote Controller mapping for media devices.</para>
</listitem>
</orderedlist>
</section>
</orderedlist>
</section>
<section>
<title>V4L2 in Linux 2.6.33</title>
<orderedlist>
<listitem>
<para>Added support for Digital Video timings in order to support HDTV receivers and transmitters.</para>
</listitem>
</orderedlist>
</section>
</section>
<section id="other">
......
......@@ -280,11 +280,29 @@ minimum value disables backlight compensation.</entry>
<constant>V4L2_COLORFX_BW</constant> (1) and
<constant>V4L2_COLORFX_SEPIA</constant> (2).</entry>
</row>
<row>
<entry><constant>V4L2_CID_ROTATE</constant></entry>
<entry>integer</entry>
<entry>Rotates the image by specified angle. Common angles are 90,
270 and 180. Rotating the image to 90 and 270 will reverse the height
and width of the display window. It is necessary to set the new height and
width of the picture using the &VIDIOC-S-FMT; ioctl according to
the rotation angle selected.</entry>
</row>
<row>
<entry><constant>V4L2_CID_BG_COLOR</constant></entry>
<entry>integer</entry>
<entry>Sets the background color on the current output device.
Background color needs to be specified in the RGB24 format. The
supplied 32 bit value is interpreted as bits 0-7 Red color information,
bits 8-15 Green color information, bits 16-23 Blue color
information and bits 24-31 must be zero.</entry>
</row>
<row>
<entry><constant>V4L2_CID_LASTP1</constant></entry>
<entry></entry>
<entry>End of the predefined control IDs (currently
<constant>V4L2_CID_COLORFX</constant> + 1).</entry>
<constant>V4L2_CID_BG_COLOR</constant> + 1).</entry>
</row>
<row>
<entry><constant>V4L2_CID_PRIVATE_BASE</constant></entry>
......
......@@ -770,6 +770,11 @@ kernel sources in the file <filename>Documentation/video4linux/cx2341x/README.hm
<entry>'S920'</entry>
<entry>YUV 4:2:0 format of the gspca sn9c20x driver.</entry>
</row>
<row id="V4L2-PIX-FMT-STV0680">
<entry><constant>V4L2_PIX_FMT_STV0680</constant></entry>
<entry>'S680'</entry>
<entry>Bayer format of the gspca stv0680 driver.</entry>
</row>
<row id="V4L2-PIX-FMT-WNVA">
<entry><constant>V4L2_PIX_FMT_WNVA</constant></entry>
<entry>'WNVA'</entry>
......
......@@ -74,6 +74,17 @@ Remote Controller chapter.</contrib>
</address>
</affiliation>
</author>
<author>
<firstname>Muralidharan</firstname>
<surname>Karicheri</surname>
<contrib>Documented the Digital Video timings API.</contrib>
<affiliation>
<address>
<email>m-karicheri2@ti.com</email>
</address>
</affiliation>
</author>
</authorgroup>
<copyright>
......@@ -89,7 +100,7 @@ Remote Controller chapter.</contrib>
<year>2008</year>
<year>2009</year>
<holder>Bill Dirks, Michael H. Schimek, Hans Verkuil, Martin
Rubli, Andy Walls, Mauro Carvalho Chehab</holder>
Rubli, Andy Walls, Muralidharan Karicheri, Mauro Carvalho Chehab</holder>
</copyright>
<legalnotice>
<para>Except when explicitly stated as GPL, programming examples within
......@@ -102,6 +113,13 @@ structs, ioctls) must be noted in more detail in the history chapter
(compat.sgml), along with the possible impact on existing drivers and
applications. -->
<revision>
<revnumber>2.6.33</revnumber>
<date>2009-12-03</date>
<authorinitials>mk</authorinitials>
<revremark>Added documentation for the Digital Video timings API.</revremark>
</revision>
<revision>
<revnumber>2.6.32</revnumber>
<date>2009-08-31</date>
......@@ -355,7 +373,7 @@ and discussions on the V4L mailing list.</revremark>
</partinfo>
<title>Video for Linux Two API Specification</title>
<subtitle>Revision 2.6.32</subtitle>
<subtitle>Revision 2.6.33</subtitle>
<chapter id="common">
&sub-common;
......@@ -411,6 +429,7 @@ and discussions on the V4L mailing list.</revremark>
&sub-encoder-cmd;
&sub-enumaudio;
&sub-enumaudioout;
&sub-enum-dv-presets;
&sub-enum-fmt;
&sub-enum-framesizes;
&sub-enum-frameintervals;
......@@ -421,6 +440,8 @@ and discussions on the V4L mailing list.</revremark>
&sub-g-audioout;
&sub-g-crop;
&sub-g-ctrl;
&sub-g-dv-preset;
&sub-g-dv-timings;
&sub-g-enc-index;
&sub-g-ext-ctrls;
&sub-g-fbuf;
......@@ -441,6 +462,7 @@ and discussions on the V4L mailing list.</revremark>
&sub-querybuf;
&sub-querycap;
&sub-queryctrl;
&sub-query-dv-preset;
&sub-querystd;
&sub-reqbufs;
&sub-s-hw-freq-seek;
......
......@@ -363,6 +363,7 @@ struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> {
#define <link linkend="V4L2-PIX-FMT-OV511">V4L2_PIX_FMT_OV511</link> v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */
#define <link linkend="V4L2-PIX-FMT-OV518">V4L2_PIX_FMT_OV518</link> v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */
#define <link linkend="V4L2-PIX-FMT-TM6000">V4L2_PIX_FMT_TM6000</link> v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */
#define <link linkend="V4L2-PIX-FMT-STV0680">V4L2_PIX_FMT_STV0680</link> v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */
/*
* F O R M A T E N U M E R A T I O N
......@@ -492,7 +493,7 @@ struct <link linkend="v4l2-jpegcompression">v4l2_jpegcompression</link> {
* you do, leave them untouched.
* Inluding less markers will make the
* resulting code smaller, but there will
* be fewer aplications which can read it.
* be fewer applications which can read it.
* The presence of the APP and COM marker
* is influenced by APP_len and COM_len
* ONLY, not by this property! */
......@@ -565,6 +566,7 @@ struct <link linkend="v4l2-framebuffer">v4l2_framebuffer</link> {
#define V4L2_FBUF_CAP_LOCAL_ALPHA 0x0010
#define V4L2_FBUF_CAP_GLOBAL_ALPHA 0x0020
#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA 0x0040
#define V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080
/* Flags for the 'flags' field. */
#define V4L2_FBUF_FLAG_PRIMARY 0x0001
#define V4L2_FBUF_FLAG_OVERLAY 0x0002
......@@ -572,6 +574,7 @@ struct <link linkend="v4l2-framebuffer">v4l2_framebuffer</link> {
#define V4L2_FBUF_FLAG_LOCAL_ALPHA 0x0008
#define V4L2_FBUF_FLAG_GLOBAL_ALPHA 0x0010
#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA 0x0020
#define V4L2_FBUF_FLAG_SRC_CHROMAKEY 0x0040
struct <link linkend="v4l2-clip">v4l2_clip</link> {
struct <link linkend="v4l2-rect">v4l2_rect</link> c;
......@@ -730,6 +733,99 @@ struct <link linkend="v4l2-standard">v4l2_standard</link> {
__u32 reserved[4];
};
/*
* V I D E O T I M I N G S D V P R E S E T
*/
struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link> {
__u32 preset;
__u32 reserved[4];
};
/*
* D V P R E S E T S E N U M E R A T I O N
*/
struct <link linkend="v4l2-dv-enum-preset">v4l2_dv_enum_preset</link> {
__u32 index;
__u32 preset;
__u8 name[32]; /* Name of the preset timing */
__u32 width;
__u32 height;
__u32 reserved[4];
};
/*
* D V P R E S E T V A L U E S
*/
#define V4L2_DV_INVALID 0
#define V4L2_DV_480P59_94 1 /* BT.1362 */
#define V4L2_DV_576P50 2 /* BT.1362 */
#define V4L2_DV_720P24 3 /* SMPTE 296M */
#define V4L2_DV_720P25 4 /* SMPTE 296M */
#define V4L2_DV_720P30 5 /* SMPTE 296M */
#define V4L2_DV_720P50 6 /* SMPTE 296M */
#define V4L2_DV_720P59_94 7 /* SMPTE 274M */
#define V4L2_DV_720P60 8 /* SMPTE 274M/296M */
#define V4L2_DV_1080I29_97 9 /* BT.1120/ SMPTE 274M */
#define V4L2_DV_1080I30 10 /* BT.1120/ SMPTE 274M */
#define V4L2_DV_1080I25 11 /* BT.1120 */
#define V4L2_DV_1080I50 12 /* SMPTE 296M */
#define V4L2_DV_1080I60 13 /* SMPTE 296M */
#define V4L2_DV_1080P24 14 /* SMPTE 296M */
#define V4L2_DV_1080P25 15 /* SMPTE 296M */
#define V4L2_DV_1080P30 16 /* SMPTE 296M */
#define V4L2_DV_1080P50 17 /* BT.1120 */
#define V4L2_DV_1080P60 18 /* BT.1120 */
/*
* D V B T T I M I N G S
*/
/* BT.656/BT.1120 timing data */
struct <link linkend="v4l2-bt-timings">v4l2_bt_timings</link> {
__u32 width; /* width in pixels */
__u32 height; /* height in lines */
__u32 interlaced; /* Interlaced or progressive */
__u32 polarities; /* Positive or negative polarity */
__u64 pixelclock; /* Pixel clock in HZ. Ex. 74.25MHz-&gt;74250000 */
__u32 hfrontporch; /* Horizpontal front porch in pixels */
__u32 hsync; /* Horizontal Sync length in pixels */
__u32 hbackporch; /* Horizontal back porch in pixels */
__u32 vfrontporch; /* Vertical front porch in pixels */
__u32 vsync; /* Vertical Sync length in lines */
__u32 vbackporch; /* Vertical back porch in lines */
__u32 il_vfrontporch; /* Vertical front porch for bottom field of
* interlaced field formats
*/
__u32 il_vsync; /* Vertical sync length for bottom field of
* interlaced field formats
*/
__u32 il_vbackporch; /* Vertical back porch for bottom field of
* interlaced field formats
*/
__u32 reserved[16];
} __attribute__ ((packed));
/* Interlaced or progressive format */
#define V4L2_DV_PROGRESSIVE 0
#define V4L2_DV_INTERLACED 1
/* Polarities. If bit is not set, it is assumed to be negative polarity */
#define V4L2_DV_VSYNC_POS_POL 0x00000001
#define V4L2_DV_HSYNC_POS_POL 0x00000002
/* DV timings */
struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link> {
__u32 type;
union {
struct <link linkend="v4l2-bt-timings">v4l2_bt_timings</link> bt;
__u32 reserved[32];
};
} __attribute__ ((packed));
/* Values for the type field */
#define V4L2_DV_BT_656_1120 0 /* BT.656/1120 timing type */
/*
* V I D E O I N P U T S
*/
......@@ -741,7 +837,8 @@ struct <link linkend="v4l2-input">v4l2_input</link> {
__u32 tuner; /* Associated tuner */
v4l2_std_id std;
__u32 status;
__u32 reserved[4];
__u32 capabilities;
__u32 reserved[3];
};
/* Values for the 'type' field */
......@@ -772,6 +869,11 @@ struct <link linkend="v4l2-input">v4l2_input</link> {
#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */
#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */
/* capabilities flags */
#define V4L2_IN_CAP_PRESETS 0x00000001 /* Supports S_DV_PRESET */
#define V4L2_IN_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */
#define V4L2_IN_CAP_STD 0x00000004 /* Supports S_STD */
/*
* V I D E O O U T P U T S
*/
......@@ -782,13 +884,19 @@ struct <link linkend="v4l2-output">v4l2_output</link> {
__u32 audioset; /* Associated audios (bitfield) */
__u32 modulator; /* Associated modulator */
v4l2_std_id std;
__u32 reserved[4];
__u32 capabilities;
__u32 reserved[3];
};
/* Values for the 'type' field */
#define V4L2_OUTPUT_TYPE_MODULATOR 1
#define V4L2_OUTPUT_TYPE_ANALOG 2
#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3
/* capabilities flags */
#define V4L2_OUT_CAP_PRESETS 0x00000001 /* Supports S_DV_PRESET */
#define V4L2_OUT_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */
#define V4L2_OUT_CAP_STD 0x00000004 /* Supports S_STD */
/*
* C O N T R O L S
*/
......@@ -914,8 +1022,10 @@ enum <link linkend="v4l2-colorfx">v4l2_colorfx</link> {
#define V4L2_CID_AUTOBRIGHTNESS (V4L2_CID_BASE+32)
#define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33)
#define V4L2_CID_ROTATE (V4L2_CID_BASE+34)
#define V4L2_CID_BG_COLOR (V4L2_CID_BASE+35)
/* last CID + 1 */
#define V4L2_CID_LASTP1 (V4L2_CID_BASE+34)
#define V4L2_CID_LASTP1 (V4L2_CID_BASE+36)
/* MPEG-class control IDs defined by V4L2 */
#define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900)
......@@ -1621,6 +1731,13 @@ struct <link linkend="v4l2-dbg-chip-ident">v4l2_dbg_chip_ident</link> {
#endif
#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct <link linkend="v4l2-hw-freq-seek">v4l2_hw_freq_seek</link>)
#define VIDIOC_ENUM_DV_PRESETS _IOWR('V', 83, struct <link linkend="v4l2-dv-enum-preset">v4l2_dv_enum_preset</link>)
#define VIDIOC_S_DV_PRESET _IOWR('V', 84, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>)
#define VIDIOC_G_DV_PRESET _IOWR('V', 85, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>)
#define VIDIOC_QUERY_DV_PRESET _IOR('V', 86, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>)
#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link>)
#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link>)
/* Reminder: when adding new ioctls please add support for them to
drivers/media/video/v4l2-compat-ioctl32.c as well! */
......
<refentry id="vidioc-enum-dv-presets">
<refmeta>
<refentrytitle>ioctl VIDIOC_ENUM_DV_PRESETS</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>VIDIOC_ENUM_DV_PRESETS</refname>
<refpurpose>Enumerate supported Digital Video presets</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 v4l2_dv_enum_preset *<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>VIDIOC_ENUM_DV_PRESETS</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para></para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>To query the attributes of a DV preset, applications initialize the
<structfield>index</structfield> field and zero the reserved array of &v4l2-dv-enum-preset;
and call the <constant>VIDIOC_ENUM_DV_PRESETS</constant> ioctl with a pointer to this
structure. Drivers fill the rest of the structure or return an
&EINVAL; when the index is out of bounds. To enumerate all DV Presets supported,
applications shall begin at index zero, incrementing by one until the
driver returns <errorcode>EINVAL</errorcode>. Drivers may enumerate a
different set of DV presets after switching the video input or
output.</para>
<table pgwide="1" frame="none" id="v4l2-dv-enum-preset">
<title>struct <structname>v4l2_dv_enum_presets</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>__u32</entry>
<entry><structfield>index</structfield></entry>
<entry>Number of the DV preset, set by the
application.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>preset</structfield></entry>
<entry>This field identifies one of the DV preset values listed in <xref linkend="v4l2-dv-presets-vals"/>.</entry>
</row>
<row>
<entry>__u8</entry>
<entry><structfield>name</structfield>[24]</entry>
<entry>Name of the preset, a NUL-terminated ASCII string, for example: "720P-60", "1080I-60". This information is
intended for the user.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>width</structfield></entry>
<entry>Width of the active video in pixels for the DV preset.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>height</structfield></entry>
<entry>Height of the active video in lines for the DV preset.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>reserved</structfield>[4]</entry>
<entry>Reserved for future extensions. Drivers must set the array to zero.</entry>
</row>
</tbody>
</tgroup>
</table>
<table pgwide="1" frame="none" id="v4l2-dv-presets-vals">
<title>struct <structname>DV Presets</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>Preset</entry>
<entry>Preset value</entry>
<entry>Description</entry>
</row>
<row>
<entry></entry>
<entry></entry>
<entry></entry>
</row>
<row>
<entry>V4L2_DV_INVALID</entry>
<entry>0</entry>
<entry>Invalid preset value.</entry>
</row>
<row>
<entry>V4L2_DV_480P59_94</entry>
<entry>1</entry>
<entry>720x480 progressive video at 59.94 fps as per BT.1362.</entry>
</row>
<row>
<entry>V4L2_DV_576P50</entry>
<entry>2</entry>
<entry>720x576 progressive video at 50 fps as per BT.1362.</entry>
</row>
<row>
<entry>V4L2_DV_720P24</entry>
<entry>3</entry>
<entry>1280x720 progressive video at 24 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_720P25</entry>
<entry>4</entry>
<entry>1280x720 progressive video at 25 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_720P30</entry>
<entry>5</entry>
<entry>1280x720 progressive video at 30 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_720P50</entry>
<entry>6</entry>
<entry>1280x720 progressive video at 50 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_720P59_94</entry>
<entry>7</entry>
<entry>1280x720 progressive video at 59.94 fps as per SMPTE 274M.</entry>
</row>
<row>
<entry>V4L2_DV_720P60</entry>
<entry>8</entry>
<entry>1280x720 progressive video at 60 fps as per SMPTE 274M/296M.</entry>
</row>
<row>
<entry>V4L2_DV_1080I29_97</entry>
<entry>9</entry>
<entry>1920x1080 interlaced video at 29.97 fps as per BT.1120/SMPTE 274M.</entry>
</row>
<row>
<entry>V4L2_DV_1080I30</entry>
<entry>10</entry>
<entry>1920x1080 interlaced video at 30 fps as per BT.1120/SMPTE 274M.</entry>
</row>
<row>
<entry>V4L2_DV_1080I25</entry>
<entry>11</entry>
<entry>1920x1080 interlaced video at 25 fps as per BT.1120.</entry>
</row>
<row>
<entry>V4L2_DV_1080I50</entry>
<entry>12</entry>
<entry>1920x1080 interlaced video at 50 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_1080I60</entry>
<entry>13</entry>
<entry>1920x1080 interlaced video at 60 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_1080P24</entry>
<entry>14</entry>
<entry>1920x1080 progressive video at 24 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_1080P25</entry>
<entry>15</entry>
<entry>1920x1080 progressive video at 25 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_1080P30</entry>
<entry>16</entry>
<entry>1920x1080 progressive video at 30 fps as per SMPTE 296M.</entry>
</row>
<row>
<entry>V4L2_DV_1080P50</entry>
<entry>17</entry>
<entry>1920x1080 progressive video at 50 fps as per BT.1120.</entry>
</row>
<row>
<entry>V4L2_DV_1080P60</entry>
<entry>18</entry>
<entry>1920x1080 progressive video at 60 fps as per BT.1120.</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>The &v4l2-dv-enum-preset; <structfield>index</structfield>
is out of bounds.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
......@@ -124,7 +124,13 @@ current input.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>reserved</structfield>[4]</entry>
<entry><structfield>capabilities</structfield></entry>
<entry>This field provides capabilities for the
input. See <xref linkend="input-capabilities" /> for flags.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>reserved</structfield>[3]</entry>
<entry>Reserved for future extensions. Drivers must set
the array to zero.</entry>
</row>
......@@ -261,6 +267,34 @@ flag is set Macrovision has been detected.</entry>
</tbody>
</tgroup>
</table>
<!-- Capability flags based on video timings RFC by Muralidharan
Karicheri, titled RFC (v1.2): V4L - Support for video timings at the
input/output interface to linux-media@vger.kernel.org on 19 Oct 2009.
-->
<table frame="none" pgwide="1" id="input-capabilities">
<title>Input capabilities</title>
<tgroup cols="3">
&cs-def;
<tbody valign="top">
<row>
<entry><constant>V4L2_IN_CAP_PRESETS</constant></entry>
<entry>0x00000001</entry>
<entry>This input supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry>
</row>
<row>
<entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry>
<entry>0x00000002</entry>
<entry>This input supports setting custom video timings by using VIDIOC_S_DV_TIMINGS.</entry>
</row>
<row>
<entry><constant>V4L2_IN_CAP_STD</constant></entry>
<entry>0x00000004</entry>
<entry>This input supports setting the TV standard by using VIDIOC_S_STD.</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1>
......
......@@ -114,7 +114,13 @@ details on video standards and how to switch see <xref
</row>
<row>
<entry>__u32</entry>
<entry><structfield>reserved</structfield>[4]</entry>
<entry><structfield>capabilities</structfield></entry>
<entry>This field provides capabilities for the
output. See <xref linkend="output-capabilities" /> for flags.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>reserved</structfield>[3]</entry>
<entry>Reserved for future extensions. Drivers must set
the array to zero.</entry>
</row>
......@@ -147,6 +153,34 @@ CVBS, S-Video, RGB.</entry>
</tgroup>
</table>
<!-- Capabilities flags based on video timings RFC by Muralidharan
Karicheri, titled RFC (v1.2): V4L - Support for video timings at the
input/output interface to linux-media@vger.kernel.org on 19 Oct 2009.
-->
<table frame="none" pgwide="1" id="output-capabilities">
<title>Output capabilities</title>
<tgroup cols="3">
&cs-def;
<tbody valign="top">
<row>
<entry><constant>V4L2_OUT_CAP_PRESETS</constant></entry>
<entry>0x00000001</entry>
<entry>This output supports setting DV presets by using VIDIOC_S_DV_PRESET.</entry>
</row>
<row>
<entry><constant>V4L2_OUT_CAP_CUSTOM_TIMINGS</constant></entry>
<entry>0x00000002</entry>
<entry>This output supports setting custom video timings by using VIDIOC_S_DV_TIMINGS.</entry>
</row>
<row>
<entry><constant>V4L2_OUT_CAP_STD</constant></entry>
<entry>0x00000004</entry>
<entry>This output supports setting the TV standard by using VIDIOC_S_STD.</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
<refsect1>
&return-value;
......
<refentry id="vidioc-g-dv-preset">
<refmeta>
<refentrytitle>ioctl VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>VIDIOC_G_DV_PRESET</refname>
<refname>VIDIOC_S_DV_PRESET</refname>
<refpurpose>Query or select the DV preset of the current input or output</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>&v4l2-dv-preset;
*<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>VIDIOC_G_DV_PRESET, VIDIOC_S_DV_PRESET</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para></para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>To query and select the current DV preset, applications
use the <constant>VIDIOC_G_DV_PRESET</constant> and <constant>VIDIOC_S_DV_PRESET</constant>
ioctls which take a pointer to a &v4l2-dv-preset; type as argument.
Applications must zero the reserved array in &v4l2-dv-preset;.
<constant>VIDIOC_G_DV_PRESET</constant> returns a dv preset in the field
<structfield>preset</structfield> of &v4l2-dv-preset;.</para>
<para><constant>VIDIOC_S_DV_PRESET</constant> accepts a pointer to a &v4l2-dv-preset;
that has the preset value to be set. Applications must zero the reserved array in &v4l2-dv-preset;.
If the preset is not supported, it returns an &EINVAL; </para>
</refsect1>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported, or the
<constant>VIDIOC_S_DV_PRESET</constant>,<constant>VIDIOC_S_DV_PRESET</constant> parameter was unsuitable.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not change the preset.</para>
</listitem>
</varlistentry>
</variablelist>
<table pgwide="1" frame="none" id="v4l2-dv-preset">
<title>struct <structname>v4l2_dv_preset</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>__u32</entry>
<entry><structfield>preset</structfield></entry>
<entry>Preset value to represent the digital video timings</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>reserved[4]</structfield></entry>
<entry>Reserved fields for future use</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
<refentry id="vidioc-g-dv-timings">
<refmeta>
<refentrytitle>ioctl VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>VIDIOC_G_DV_TIMINGS</refname>
<refname>VIDIOC_S_DV_TIMINGS</refname>
<refpurpose>Get or set custom DV timings for input or output</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>&v4l2-dv-timings;
*<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>VIDIOC_G_DV_TIMINGS, VIDIOC_S_DV_TIMINGS</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para></para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>To set custom DV timings for the input or output, applications use the
<constant>VIDIOC_S_DV_TIMINGS</constant> ioctl and to get the current custom timings,
applications use the <constant>VIDIOC_G_DV_TIMINGS</constant> ioctl. The detailed timing
information is filled in using the structure &v4l2-dv-timings;. These ioctls take
a pointer to the &v4l2-dv-timings; structure as argument. If the ioctl is not supported
or the timing values are not correct, the driver returns &EINVAL;.</para>
</refsect1>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported, or the
<constant>VIDIOC_S_DV_TIMINGS</constant> parameter was unsuitable.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not change the timings.</para>
</listitem>
</varlistentry>
</variablelist>
<table pgwide="1" frame="none" id="v4l2-bt-timings">
<title>struct <structname>v4l2_bt_timings</structname></title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>__u32</entry>
<entry><structfield>width</structfield></entry>
<entry>Width of the active video in pixels</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>height</structfield></entry>
<entry>Height of the active video in lines</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>interlaced</structfield></entry>
<entry>Progressive (0) or interlaced (1)</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>polarities</structfield></entry>
<entry>This is a bit mask that defines polarities of sync signals.
bit 0 (V4L2_DV_VSYNC_POS_POL) is for vertical sync polarity and bit 1 (V4L2_DV_HSYNC_POS_POL) is for horizontal sync polarity. If the bit is set
(1) it is positive polarity and if is cleared (0), it is negative polarity.</entry>
</row>
<row>
<entry>__u64</entry>
<entry><structfield>pixelclock</structfield></entry>
<entry>Pixel clock in Hz. Ex. 74.25MHz->74250000</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>hfrontporch</structfield></entry>
<entry>Horizontal front porch in pixels</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>hsync</structfield></entry>
<entry>Horizontal sync length in pixels</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>hbackporch</structfield></entry>
<entry>Horizontal back porch in pixels</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>vfrontporch</structfield></entry>
<entry>Vertical front porch in lines</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>vsync</structfield></entry>
<entry>Vertical sync length in lines</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>vbackporch</structfield></entry>
<entry>Vertical back porch in lines</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>il_vfrontporch</structfield></entry>
<entry>Vertical front porch in lines for bottom field of interlaced field formats</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>il_vsync</structfield></entry>
<entry>Vertical sync length in lines for bottom field of interlaced field formats</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>il_vbackporch</structfield></entry>
<entry>Vertical back porch in lines for bottom field of interlaced field formats</entry>
</row>
</tbody>
</tgroup>
</table>
<table pgwide="1" frame="none" id="v4l2-dv-timings">
<title>struct <structname>v4l2_dv_timings</structname></title>
<tgroup cols="4">
&cs-str;
<tbody valign="top">
<row>
<entry>__u32</entry>
<entry><structfield>type</structfield></entry>
<entry></entry>
<entry>Type of DV timings as listed in <xref linkend="dv-timing-types"/>.</entry>
</row>
<row>
<entry>union</entry>
<entry><structfield></structfield></entry>
<entry></entry>
</row>
<row>
<entry></entry>
<entry>&v4l2-bt-timings;</entry>
<entry><structfield>bt</structfield></entry>
<entry>Timings defined by BT.656/1120 specifications</entry>
</row>
<row>
<entry></entry>
<entry>__u32</entry>
<entry><structfield>reserved</structfield>[32]</entry>
<entry></entry>
</row>
</tbody>
</tgroup>
</table>
<table pgwide="1" frame="none" id="dv-timing-types">
<title>DV Timing types</title>
<tgroup cols="3">
&cs-str;
<tbody valign="top">
<row>
<entry>Timing type</entry>
<entry>value</entry>
<entry>Description</entry>
</row>
<row>
<entry></entry>
<entry></entry>
<entry></entry>
</row>
<row>
<entry>V4L2_DV_BT_656_1120</entry>
<entry>0</entry>
<entry>BT.656/1120 timings</entry>
</row>
</tbody>
</tgroup>
</table>
</refsect1>
</refentry>
<!--
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End:
-->
......@@ -336,6 +336,13 @@ alpha value. Alpha blending makes no sense for destructive overlays.</entry>
inverted alpha channel of the framebuffer or VGA signal. Alpha
blending makes no sense for destructive overlays.</entry>
</row>
<row>
<entry><constant>V4L2_FBUF_CAP_SRC_CHROMAKEY</constant></entry>
<entry>0x0080</entry>
<entry>The device supports Source Chroma-keying. Framebuffer pixels
with the chroma-key colors are replaced by video pixels, which is exactly opposite of
<constant>V4L2_FBUF_CAP_CHROMAKEY</constant></entry>
</row>
</tbody>
</tgroup>
</table>
......@@ -411,6 +418,16 @@ images, but with an inverted alpha value. The blend function is:
output = framebuffer pixel * (1 - alpha) + video pixel * alpha. The
actual alpha depth depends on the framebuffer pixel format.</entry>
</row>
<row>
<entry><constant>V4L2_FBUF_FLAG_SRC_CHROMAKEY</constant></entry>
<entry>0x0040</entry>
<entry>Use source chroma-keying. The source chroma-key color is
determined by the <structfield>chromakey</structfield> field of
&v4l2-window; and negotiated with the &VIDIOC-S-FMT; ioctl, see <xref
linkend="overlay" /> and <xref linkend="osd" />.
Both chroma-keying are mutual exclusive to each other, so same
<structfield>chromakey</structfield> field of &v4l2-window; is being used.</entry>
</row>
</tbody>
</tgroup>
</table>
......
......@@ -86,6 +86,12 @@ standards.</para>
<constant>VIDIOC_S_STD</constant> parameter was unsuitable.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not change the standard</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
......
<refentry id="vidioc-query-dv-preset">
<refmeta>
<refentrytitle>ioctl VIDIOC_QUERY_DV_PRESET</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname>VIDIOC_QUERY_DV_PRESET</refname>
<refpurpose>Sense the DV preset received by the current
input</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>ioctl</function></funcdef>
<paramdef>int <parameter>fd</parameter></paramdef>
<paramdef>int <parameter>request</parameter></paramdef>
<paramdef>&v4l2-dv-preset; *<parameter>argp</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Arguments</title>
<variablelist>
<varlistentry>
<term><parameter>fd</parameter></term>
<listitem>
<para>&fd;</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>request</parameter></term>
<listitem>
<para>VIDIOC_QUERY_DV_PRESET</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>argp</parameter></term>
<listitem>
<para></para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Description</title>
<para>The hardware may be able to detect the current DV preset
automatically, similar to sensing the video standard. To do so, applications
call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a
&v4l2-dv-preset; type. Once the hardware detects a preset, that preset is
returned in the preset field of &v4l2-dv-preset;. When detection is not
possible or fails, the value V4L2_DV_INVALID is returned.</para>
</refsect1>
<refsect1>
&return-value;
<variablelist>
<varlistentry>
<term><errorcode>EINVAL</errorcode></term>
<listitem>
<para>This ioctl is not supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not sense the preset</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "v4l2.sgml"
indent-tabs-mode: nil
End:
-->
......@@ -70,6 +70,12 @@ current video input or output.</para>
<para>This ioctl is not supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><errorcode>EBUSY</errorcode></term>
<listitem>
<para>The device is busy and therefore can not detect the standard</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
</refentry>
......
......@@ -5318,7 +5318,7 @@ struct _snd_pcm_runtime {
pages of the given size and map them onto the virtually contiguous
memory. The virtual pointer is addressed in runtime-&gt;dma_area.
The physical address (runtime-&gt;dma_addr) is set to zero,
because the buffer is physically non-contigous.
because the buffer is physically non-contiguous.
The physical address table is set up in sgbuf-&gt;table.
You can get the physical address at a certain offset via
<function>snd_pcm_sgbuf_get_addr()</function>.
......
This diff is collapsed.
......@@ -830,7 +830,7 @@ sched: Critical sections Grace period Barrier
SRCU: Critical sections Grace period Barrier
srcu_read_lock synchronize_srcu N/A
srcu_read_unlock
srcu_read_unlock synchronize_srcu_expedited
SRCU: Initialization/cleanup
init_srcu_struct
......
......@@ -15,7 +15,7 @@ kernel patches.
2: Passes allnoconfig, allmodconfig
3: Builds on multiple CPU architectures by using local cross-compile tools
or something like PLM at OSDL.
or some other build farm.
4: ppc64 is a good architecture for cross-compilation checking because it
tends to use `unsigned long' for 64-bit quantities.
......@@ -88,3 +88,6 @@ kernel patches.
24: All memory barriers {e.g., barrier(), rmb(), wmb()} need a comment in the
source code that explains the logic of what they are doing and why.
25: If any ioctl's are added by the patch, then also update
Documentation/ioctl/ioctl-number.txt.
Linux ACPI Custom Control Method How To
=======================================
Written by Zhang Rui <rui.zhang@intel.com>
Linux supports customizing ACPI control methods at runtime.
Users can use this to
1. override an existing method which may not work correctly,
or just for debugging purposes.
2. insert a completely new method in order to create a missing
method such as _OFF, _ON, _STA, _INI, etc.
For these cases, it is far simpler to dynamically install a single
control method rather than override the entire DSDT, because kernel
rebuild/reboot is not needed and test result can be got in minutes.
Note: Only ACPI METHOD can be overridden, any other object types like
"Device", "OperationRegion", are not recognized.
Note: The same ACPI control method can be overridden for many times,
and it's always the latest one that used by Linux/kernel.
1. override an existing method
a) get the ACPI table via ACPI sysfs I/F. e.g. to get the DSDT,
just run "cat /sys/firmware/acpi/tables/DSDT > /tmp/dsdt.dat"
b) disassemble the table by running "iasl -d dsdt.dat".
c) rewrite the ASL code of the method and save it in a new file,
d) package the new file (psr.asl) to an ACPI table format.
Here is an example of a customized \_SB._AC._PSR method,
DefinitionBlock ("", "SSDT", 1, "", "", 0x20080715)
{
External (ACON)
Method (\_SB_.AC._PSR, 0, NotSerialized)
{
Store ("In AC _PSR", Debug)
Return (ACON)
}
}
Note that the full pathname of the method in ACPI namespace
should be used.
And remember to use "External" to declare external objects.
e) assemble the file to generate the AML code of the method.
e.g. "iasl psr.asl" (psr.aml is generated as a result)
f) mount debugfs by "mount -t debugfs none /sys/kernel/debug"
g) override the old method via the debugfs by running
"cat /tmp/psr.aml > /sys/kernel/debug/acpi/custom_method"
2. insert a new method
This is easier than overriding an existing method.
We just need to create the ASL code of the method we want to
insert and then follow the step c) ~ g) in section 1.
3. undo your changes
The "undo" operation is not supported for a new inserted method
right now, i.e. we can not remove a method currently.
For an overrided method, in order to undo your changes, please
save a copy of the method original ASL code in step c) section 1,
and redo step c) ~ g) to override the method with the original one.
Note: We can use a kernel with multiple custom ACPI method running,
But each individual write to debugfs can implement a SINGLE
method override. i.e. if we want to insert/override multiple
ACPI methods, we need to redo step c) ~ g) for multiple times.
This diff is collapsed.
......@@ -55,4 +55,4 @@ Maintainers
This board is maintained by Simtec Electronics.
(c) 2004 Ben Dooks, Simtec Electronics
Copyright 2004 Ben Dooks, Simtec Electronics
......@@ -134,4 +134,4 @@ Authour
Ben Dooks, 03 October 2004
(c) 2004 Ben Dooks, Simtec Electronics
Copyright 2004 Ben Dooks, Simtec Electronics
......@@ -299,4 +299,4 @@ Port Contributors
Document Author
---------------
Ben Dooks, (c) 2004-2005,2006 Simtec Electronics
Ben Dooks, Copyright 2004-2006 Simtec Electronics
......@@ -117,4 +117,4 @@ ATA
Document Author
---------------
Ben Dooks, (c) 2006 Simtec Electronics
Ben Dooks, Copyright 2006 Simtec Electronics
......@@ -18,4 +18,4 @@ Camera Interface
Document Author
---------------
Ben Dooks, (c) 2006 Simtec Electronics
Ben Dooks, Copyright 2006 Simtec Electronics
......@@ -133,5 +133,5 @@ Configuration
Document Author
---------------
Ben Dooks, (c) 2004 Simtec Electronics
Ben Dooks, Copyright 2004 Simtec Electronics
......@@ -90,4 +90,4 @@ Platform Data
Document Author
---------------
Ben Dooks, (c) 2005 Simtec Electronics
Ben Dooks, Copyright 2005 Simtec Electronics
00-INDEX
- This file
cache-lock.txt
- HOWTO for blackfin cache locking.
cachefeatures.txt
- Supported cache features.
......
obj-m := gptimers-example.o
all: modules
modules clean:
$(MAKE) -C ../.. SUBDIRS=$(PWD) $@
/*
* File: Documentation/blackfin/cache-lock.txt
* Based on:
* Author:
*
* Created:
* Description: This file contains the simple DMA Implementation for Blackfin
*
* Rev: $Id: cache-lock.txt 2384 2006-11-01 04:12:43Z magicyang $
*
* Modified:
* Copyright 2004-2006 Analog Devices Inc.
*
* Bugs: Enter bugs at http://blackfin.uclinux.org/
*
*/
How to lock your code in cache in uClinux/blackfin
--------------------------------------------------
There are only a few steps required to lock your code into the cache.
Currently you can lock the code by Way.
Below are the interface provided for locking the cache.
1. cache_grab_lock(int Ways);
This function grab the lock for locking your code into the cache specified
by Ways.
2. cache_lock(int Ways);
This function should be called after your critical code has been executed.
Once the critical code exits, the code is now loaded into the cache. This
function locks the code into the cache.
So, the example sequence will be:
cache_grab_lock(WAY0_L); /* Grab the lock */
critical_code(); /* Execute the code of interest */
cache_lock(WAY0_L); /* Lock the cache */
Where WAY0_L signifies WAY0 locking.
......@@ -41,16 +41,6 @@
icplb_flush();
dcplb_flush();
- Locking the cache.
cache_grab_lock();
cache_lock();
Please refer linux-2.6.x/Documentation/blackfin/cache-lock.txt for how to
lock the cache.
Locking the cache is optional feature.
- Miscellaneous cache functions.
flush_cache_all();
......
/*
* Simple gptimers example
* http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:gptimers
*
* Copyright 2007-2009 Analog Devices Inc.
*
* Licensed under the GPL-2 or later.
*/
#include <linux/interrupt.h>
#include <linux/module.h>
#include <asm/gptimers.h>
#include <asm/portmux.h>
/* ... random driver includes ... */
#define DRIVER_NAME "gptimer_example"
struct gptimer_data {
uint32_t period, width;
};
static struct gptimer_data data;
/* ... random driver state ... */
static irqreturn_t gptimer_example_irq(int irq, void *dev_id)
{
struct gptimer_data *data = dev_id;
/* make sure it was our timer which caused the interrupt */
if (!get_gptimer_intr(TIMER5_id))
return IRQ_NONE;
/* read the width/period values that were captured for the waveform */
data->width = get_gptimer_pwidth(TIMER5_id);
data->period = get_gptimer_period(TIMER5_id);
/* acknowledge the interrupt */
clear_gptimer_intr(TIMER5_id);
/* tell the upper layers we took care of things */
return IRQ_HANDLED;
}
/* ... random driver code ... */
static int __init gptimer_example_init(void)
{
int ret;
/* grab the peripheral pins */
ret = peripheral_request(P_TMR5, DRIVER_NAME);
if (ret) {
printk(KERN_NOTICE DRIVER_NAME ": peripheral request failed\n");
return ret;
}
/* grab the IRQ for the timer */
ret = request_irq(IRQ_TIMER5, gptimer_example_irq, IRQF_SHARED, DRIVER_NAME, &data);
if (ret) {
printk(KERN_NOTICE DRIVER_NAME ": IRQ request failed\n");
peripheral_free(P_TMR5);
return ret;
}
/* setup the timer and enable it */
set_gptimer_config(TIMER5_id, WDTH_CAP | PULSE_HI | PERIOD_CNT | IRQ_ENA);
enable_gptimers(TIMER5bit);
return 0;
}
module_init(gptimer_example_init);
static void __exit gptimer_example_exit(void)
{
disable_gptimers(TIMER5bit);
free_irq(IRQ_TIMER5, &data);
peripheral_free(P_TMR5);
}
module_exit(gptimer_example_exit);
MODULE_LICENSE("BSD");
This diff is collapsed.
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Description
DRBD is a shared-nothing, synchronously replicated block device. It
is designed to serve as a building block for high availability
clusters and in this context, is a "drop-in" replacement for shared
storage. Simplistically, you could see it as a network RAID 1.
Please visit http://www.drbd.org to find out more.
The here included files are intended to help understand the implementation
DRBD-8.3-data-packets.svg, DRBD-data-packets.svg
relates some functions, and write packets.
conn-states-8.dot, disk-states-8.dot, node-states-8.dot
The sub graphs of DRBD's state transitions
digraph conn_states {
StandAllone -> WFConnection [ label = "ioctl_set_net()" ]
WFConnection -> Unconnected [ label = "unable to bind()" ]
WFConnection -> WFReportParams [ label = "in connect() after accept" ]
WFReportParams -> StandAllone [ label = "checks in receive_param()" ]
WFReportParams -> Connected [ label = "in receive_param()" ]
WFReportParams -> WFBitMapS [ label = "sync_handshake()" ]
WFReportParams -> WFBitMapT [ label = "sync_handshake()" ]
WFBitMapS -> SyncSource [ label = "receive_bitmap()" ]
WFBitMapT -> SyncTarget [ label = "receive_bitmap()" ]
SyncSource -> Connected
SyncTarget -> Connected
SyncSource -> PausedSyncS
SyncTarget -> PausedSyncT
PausedSyncS -> SyncSource
PausedSyncT -> SyncTarget
Connected -> WFConnection [ label = "* on network error" ]
}
digraph disk_states {
Diskless -> Inconsistent [ label = "ioctl_set_disk()" ]
Diskless -> Consistent [ label = "ioctl_set_disk()" ]
Diskless -> Outdated [ label = "ioctl_set_disk()" ]
Consistent -> Outdated [ label = "receive_param()" ]
Consistent -> UpToDate [ label = "receive_param()" ]
Consistent -> Inconsistent [ label = "start resync" ]
Outdated -> Inconsistent [ label = "start resync" ]
UpToDate -> Inconsistent [ label = "ioctl_replicate" ]
Inconsistent -> UpToDate [ label = "resync completed" ]
Consistent -> Failed [ label = "io completion error" ]
Outdated -> Failed [ label = "io completion error" ]
UpToDate -> Failed [ label = "io completion error" ]
Inconsistent -> Failed [ label = "io completion error" ]
Failed -> Diskless [ label = "sending notify to peer" ]
}
This diff is collapsed.
digraph node_states {
Secondary -> Primary [ label = "ioctl_set_state()" ]
Primary -> Secondary [ label = "ioctl_set_state()" ]
}
digraph peer_states {
Secondary -> Primary [ label = "recv state packet" ]
Primary -> Secondary [ label = "recv state packet" ]
Primary -> Unknown [ label = "connection lost" ]
Secondary -> Unknown [ label = "connection lost" ]
Unknown -> Primary [ label = "connected" ]
Unknown -> Secondary [ label = "connected" ]
}
This diff is collapsed.
......@@ -92,9 +92,9 @@ policy->cpuinfo.max_freq - the minimum and maximum frequency
(in kHz) which is supported by
this CPU
policy->cpuinfo.transition_latency the time it takes on this CPU to
switch between two frequencies (if
appropriate, else specify
CPUFREQ_ETERNAL)
switch between two frequencies in
nanoseconds (if appropriate, else
specify CPUFREQ_ETERNAL)
policy->cur The current operating frequency of
this CPU (if appropriate)
......
......@@ -203,6 +203,17 @@ scaling_cur_freq : Current frequency of the CPU as determined by
the frequency the kernel thinks the CPU runs
at.
bios_limit : If the BIOS tells the OS to limit a CPU to
lower frequencies, the user can read out the
maximum available frequency from this file.
This typically can happen through (often not
intended) BIOS settings, restrictions
triggered through a service processor or other
BIOS/HW based implementations.
This does not cover thermal ACPI limitations
which can be detected through the generic
thermal driver.
If you have selected the "userspace" governor which allows you to
set the CPU operating frequency to a specific value, you can read out
the current frequency in
......
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