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提交 1102c660 编写于 作者: I Ingo Molnar
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Merge branch 'linus' into perf/urgent 

Merge reason: Linus applied an overlapping commit:

  5f2e8e2b: kernel/watchdog.c: Use proper ANSI C prototypes

So merge it in to make sure we can iterate the file without conflicts.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 6e9101ae 4db70f73
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文本差异 电子邮件补丁
.gitignore
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......@@ -57,6 +57,7 @@ modules.builtin
include/config
include/linux/version.h
include/generated
arch/*/include/generated
# stgit generated dirs
patches-*
......
.mailmap
浏览文件 @ 1102c660
......@@ -32,6 +32,7 @@ Brian Avery <b.avery@hp.com>
Brian King <brking@us.ibm.com>
Christoph Hellwig <hch@lst.de>
Corey Minyard <minyard@acm.org>
Damian Hobson-Garcia <dhobsong@igel.co.jp>
David Brownell <david-b@pacbell.net>
David Woodhouse <dwmw2@shinybook.infradead.org>
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
......
CREDITS
浏览文件 @ 1102c660
......@@ -328,7 +328,7 @@ S: Haifa, Israel
N: Johannes Berg
E: johannes@sipsolutions.net
W: http://johannes.sipsolutions.net/
P: 1024D/9AB78CA5 AD02 0176 4E29 C137 1DF6 08D2 FC44 CF86 9AB7 8CA5
P: 4096R/7BF9099A C0EB C440 F6DA 091C 884D 8532 E0F3 73F3 7BF9 099A
D: powerpc & 802.11 hacker
N: Stephen R. van den Berg (AKA BuGless)
......@@ -2943,6 +2943,10 @@ S: Kasarmikatu 11 A4
S: 70110 Kuopio
S: Finland
N: Tobias Ringström
E: tori@unhappy.mine.nu
D: Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver
N: Luca Risolia
E: luca.risolia@studio.unibo.it
P: 1024D/FCE635A4 88E8 F32F 7244 68BA 3958 5D40 99DA 5D2A FCE6 35A4
......@@ -3913,6 +3917,10 @@ S: Flandernstrasse 101
S: D-73732 Esslingen
S: Germany
N: Roman Zippel
E: zippel@linux-m68k.org
D: AFFS and HFS filesystems, m68k maintainer, new kernel configuration in 2.5
N: Leonard N. Zubkoff
W: http://www.dandelion.com/Linux/
D: BusLogic SCSI driver
......
Documentation/ABI/obsolete/sysfs-driver-hid-roccat-koneplus 0 → 100644
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What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The integer value of this attribute ranges from 0-4.
When read, this attribute returns the number of the actual
profile. This value is persistent, so its equivalent to the
profile that's active when the mouse is powered on next time.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
Please use actual_profile, it does the same thing.
Documentation/ABI/testing/sysfs-block
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......@@ -142,3 +142,67 @@ Description:
with the previous I/O request are enabled. When set to 2,
all merge tries are disabled. The default value is 0 -
which enables all types of merge tries.
What: /sys/block/<disk>/discard_alignment
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may
internally allocate space in units that are bigger than
the exported logical block size. The discard_alignment
parameter indicates how many bytes the beginning of the
device is offset from the internal allocation unit's
natural alignment.
What: /sys/block/<disk>/<partition>/discard_alignment
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may
internally allocate space in units that are bigger than
the exported logical block size. The discard_alignment
parameter indicates how many bytes the beginning of the
partition is offset from the internal allocation unit's
natural alignment.
What: /sys/block/<disk>/queue/discard_granularity
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may
internally allocate space using units that are bigger
than the logical block size. The discard_granularity
parameter indicates the size of the internal allocation
unit in bytes if reported by the device. Otherwise the
discard_granularity will be set to match the device's
physical block size. A discard_granularity of 0 means
that the device does not support discard functionality.
What: /sys/block/<disk>/queue/discard_max_bytes
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may have
internal limits on the number of bytes that can be
trimmed or unmapped in a single operation. Some storage
protocols also have inherent limits on the number of
blocks that can be described in a single command. The
discard_max_bytes parameter is set by the device driver
to the maximum number of bytes that can be discarded in
a single operation. Discard requests issued to the
device must not exceed this limit. A discard_max_bytes
value of 0 means that the device does not support
discard functionality.
What: /sys/block/<disk>/queue/discard_zeroes_data
Date: May 2011
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Devices that support discard functionality may return
stale or random data when a previously discarded block
is read back. This can cause problems if the filesystem
expects discarded blocks to be explicitly cleared. If a
device reports that it deterministically returns zeroes
when a discarded area is read the discard_zeroes_data
parameter will be set to one. Otherwise it will be 0 and
the result of reading a discarded area is undefined.
Documentation/ABI/testing/sysfs-bus-bcma 0 → 100644
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What: /sys/bus/bcma/devices/.../manuf
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
Each BCMA core has it's manufacturer id. See
include/linux/bcma/bcma.h for possible values.
What: /sys/bus/bcma/devices/.../id
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
There are a few types of BCMA cores, they can be identified by
id field.
What: /sys/bus/bcma/devices/.../rev
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
BCMA cores of the same type can still slightly differ depending
on their revision. Use it for detailed programming.
What: /sys/bus/bcma/devices/.../class
Date: May 2011
KernelVersion: 2.6.40
Contact: Rafał Miłecki <zajec5@gmail.com>
Description:
Each BCMA core is identified by few fields, including class it
belongs to. See include/linux/bcma/bcma.h for possible values.
Documentation/ABI/testing/sysfs-bus-pci
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......@@ -74,6 +74,15 @@ Description:
hot-remove the PCI device and any of its children.
Depends on CONFIG_HOTPLUG.
What: /sys/bus/pci/devices/.../pci_bus/.../rescan
Date: May 2011
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
Description:
Writing a non-zero value to this attribute will
force a rescan of the bus and all child buses,
and re-discover devices removed earlier from this
part of the device tree. Depends on CONFIG_HOTPLUG.
What: /sys/bus/pci/devices/.../rescan
Date: January 2009
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
......
Documentation/ABI/testing/sysfs-driver-hid-roccat-koneplus
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What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/actual_profile
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When read, this file returns the number of the actual profile in
range 0-4.
This file is readonly.
Description: The integer value of this attribute ranges from 0-4.
When read, this attribute returns the number of the actual
profile. This value is persistent, so its equivalent to the
profile that's active when the mouse is powered on next time.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/firmware_version
......@@ -89,16 +92,6 @@ Description: The mouse has a tracking- and a distance-control-unit. These
This file is writeonly.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/startup_profile
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: The integer value of this attribute ranges from 0-4.
When read, this attribute returns the number of the profile
that's active when the mouse is powered on.
When written, this file sets the number of the startup profile
and the mouse activates this profile immediately.
Users: http://roccat.sourceforge.net
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/koneplus/roccatkoneplus<minor>/tcu
Date: October 2010
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
......
Documentation/ABI/testing/sysfs-ptp 0 → 100644
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What: /sys/class/ptp/
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This directory contains files and directories
providing a standardized interface to the ancillary
features of PTP hardware clocks.
What: /sys/class/ptp/ptpN/
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This directory contains the attributes of the Nth PTP
hardware clock registered into the PTP class driver
subsystem.
What: /sys/class/ptp/ptpN/clock_name
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the name of the PTP hardware clock
as a human readable string.
What: /sys/class/ptp/ptpN/max_adjustment
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the PTP hardware clock's maximum
frequency adjustment value (a positive integer) in
parts per billion.
What: /sys/class/ptp/ptpN/n_alarms
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the number of periodic or one shot
alarms offer by the PTP hardware clock.
What: /sys/class/ptp/ptpN/n_external_timestamps
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the number of external timestamp
channels offered by the PTP hardware clock.
What: /sys/class/ptp/ptpN/n_periodic_outputs
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the number of programmable periodic
output channels offered by the PTP hardware clock.
What: /sys/class/ptp/ptpN/pps_avaiable
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file indicates whether the PTP hardware clock
supports a Pulse Per Second to the host CPU. Reading
"1" means that the PPS is supported, while "0" means
not supported.
What: /sys/class/ptp/ptpN/extts_enable
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This write-only file enables or disables external
timestamps. To enable external timestamps, write the
channel index followed by a "1" into the file.
To disable external timestamps, write the channel
index followed by a "0" into the file.
What: /sys/class/ptp/ptpN/fifo
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file provides timestamps on external events, in
the form of three integers: channel index, seconds,
and nanoseconds.
What: /sys/class/ptp/ptpN/period
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This write-only file enables or disables periodic
outputs. To enable a periodic output, write five
integers into the file: channel index, start time
seconds, start time nanoseconds, period seconds, and
period nanoseconds. To disable a periodic output, set
all the seconds and nanoseconds values to zero.
What: /sys/class/ptp/ptpN/pps_enable
Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This write-only file enables or disables delivery of
PPS events to the Linux PPS subsystem. To enable PPS
events, write a "1" into the file. To disable events,
write a "0" into the file.
Documentation/DocBook/.gitignore
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......@@ -8,3 +8,4 @@
*.dvi
*.log
*.out
media/
Documentation/DocBook/Makefile
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......@@ -73,7 +73,7 @@ installmandocs: mandocs
###
#External programs used
KERNELDOC = $(srctree)/scripts/kernel-doc
DOCPROC = $(objtree)/scripts/basic/docproc
DOCPROC = $(objtree)/scripts/docproc
XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
XMLTOFLAGS += --skip-validation
......
Documentation/DocBook/dvb/dvbapi.xml
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......@@ -34,6 +34,14 @@
<revhistory>
<!-- Put document revisions here, newest first. -->
<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>
......
Documentation/DocBook/dvb/dvbproperty.xml
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<section id="FE_GET_PROPERTY">
<section id="FE_GET_SET_PROPERTY">
<title>FE_GET_PROPERTY/FE_SET_PROPERTY</title>
<programlisting>
/* Reserved fields should be set to 0 */
struct dtv_property {
__u32 cmd;
union {
__u32 data;
struct {
__u8 data[32];
__u32 len;
__u32 reserved1[3];
void *reserved2;
} buffer;
} u;
int result;
} __attribute__ ((packed));
/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
#define DTV_IOCTL_MAX_MSGS 64
struct dtv_properties {
__u32 num;
struct dtv_property *props;
};
</programlisting>
<section id="FE_GET_PROPERTY">
<title>FE_GET_PROPERTY</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl call returns one or more frontend properties. This call only
requires read-only access to the device.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>,
dtv_properties &#x22C6;props);</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 num</para>
</entry><entry
align="char">
<para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para>
</entry>
</row><row><entry
align="char">
<para>struct dtv_property *props</para>
</entry><entry
align="char">
<para>Points to the location where the front-end property commands are stored.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>ERRORS</para>
<informaltable><tgroup cols="2"><tbody><row>
<entry align="char"><para>EINVAL</para></entry>
<entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry>
</row><row>
<entry align="char"><para>ENOMEM</para></entry>
<entry align="char"><para>Out of memory.</para></entry>
</row><row>
<entry align="char"><para>EFAULT</para></entry>
<entry align="char"><para>Failure while copying data from/to userspace.</para></entry>
</row><row>
<entry align="char"><para>EOPNOTSUPP</para></entry>
<entry align="char"><para>Property type not supported.</para></entry>
</row></tbody></tgroup></informaltable>
</section>
<section id="FE_SET_PROPERTY">
<title>FE_SET_PROPERTY</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>This ioctl call sets one or more frontend properties. This call only
requires read-only access to the device.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
align="char">
<para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
dtv_properties &#x22C6;props);</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 num</para>
</entry><entry
align="char">
<para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para>
</entry>
</row><row><entry
align="char">
<para>struct dtv_property *props</para>
</entry><entry
align="char">
<para>Points to the location where the front-end property commands are stored.</para>
</entry>
</row></tbody></tgroup></informaltable>
<para>ERRORS
</para>
<informaltable><tgroup cols="2"><tbody><row>
<entry align="char"><para>EINVAL</para></entry>
<entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry>
</row><row>
<entry align="char"><para>ENOMEM</para></entry>
<entry align="char"><para>Out of memory.</para></entry>
</row><row>
<entry align="char"><para>EFAULT</para></entry>
<entry align="char"><para>Failure while copying data from/to userspace.</para></entry>
</row><row>
<entry align="char"><para>EOPNOTSUPP</para></entry>
<entry align="char"><para>Property type not supported.</para></entry>
</row></tbody></tgroup></informaltable>
</section>
<para>
On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to
get/set up to 64 properties. The actual meaning of each property is described on the next sections.
</para>
<para>The Available frontend property types are:</para>
<programlisting>
#define DTV_UNDEFINED 0
#define DTV_TUNE 1
#define DTV_CLEAR 2
#define DTV_FREQUENCY 3
#define DTV_MODULATION 4
#define DTV_BANDWIDTH_HZ 5
#define DTV_INVERSION 6
#define DTV_DISEQC_MASTER 7
#define DTV_SYMBOL_RATE 8
#define DTV_INNER_FEC 9
#define DTV_VOLTAGE 10
#define DTV_TONE 11
#define DTV_PILOT 12
#define DTV_ROLLOFF 13
#define DTV_DISEQC_SLAVE_REPLY 14
#define DTV_FE_CAPABILITY_COUNT 15
#define DTV_FE_CAPABILITY 16
#define DTV_DELIVERY_SYSTEM 17
#define DTV_ISDBT_PARTIAL_RECEPTION 18
#define DTV_ISDBT_SOUND_BROADCASTING 19
#define DTV_ISDBT_SB_SUBCHANNEL_ID 20
#define DTV_ISDBT_SB_SEGMENT_IDX 21
#define DTV_ISDBT_SB_SEGMENT_COUNT 22
#define DTV_ISDBT_LAYERA_FEC 23
#define DTV_ISDBT_LAYERA_MODULATION 24
#define DTV_ISDBT_LAYERA_SEGMENT_COUNT 25
#define DTV_ISDBT_LAYERA_TIME_INTERLEAVING 26
#define DTV_ISDBT_LAYERB_FEC 27
#define DTV_ISDBT_LAYERB_MODULATION 28
#define DTV_ISDBT_LAYERB_SEGMENT_COUNT 29
#define DTV_ISDBT_LAYERB_TIME_INTERLEAVING 30
#define DTV_ISDBT_LAYERC_FEC 31
#define DTV_ISDBT_LAYERC_MODULATION 32
#define DTV_ISDBT_LAYERC_SEGMENT_COUNT 33
#define DTV_ISDBT_LAYERC_TIME_INTERLEAVING 34
#define DTV_API_VERSION 35
#define DTV_CODE_RATE_HP 36
#define DTV_CODE_RATE_LP 37
#define DTV_GUARD_INTERVAL 38
#define DTV_TRANSMISSION_MODE 39
#define DTV_HIERARCHY 40
#define DTV_ISDBT_LAYER_ENABLED 41
#define DTV_ISDBS_TS_ID 42
</programlisting>
<section id="fe_property_common">
<title>Parameters that are common to all Digital TV standards</title>
<section id="DTV_FREQUENCY">
<title><constant>DTV_FREQUENCY</constant></title>
<para>Central frequency of the channel, in HZ.</para>
<para>Notes:</para>
<para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
the channel which is 6MHz.</para>
<para>2)As in ISDB-Tsb the channel consists of only one or three segments the
frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
central frequency of the channel is expected.</para>
</section>
<section id="DTV_BANDWIDTH_HZ">
<title><constant>DTV_BANDWIDTH_HZ</constant></title>
<para>Bandwidth for the channel, in HZ.</para>
<para>Possible values:
<constant>1712000</constant>,
<constant>5000000</constant>,
<constant>6000000</constant>,
<constant>7000000</constant>,
<constant>8000000</constant>,
<constant>10000000</constant>.
</para>
<para>Notes:</para>
<para>1) For ISDB-T it should be always 6000000Hz (6MHz)</para>
<para>2) For ISDB-Tsb it can vary depending on the number of connected segments</para>
<para>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth
for DVB-C depends on the symbol rate</para>
<para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
DTV_ISDBT_SB_SEGMENT_COUNT).</para>
<para>5) DVB-T supports 6, 7 and 8MHz.</para>
<para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para>
</section>
<section id="DTV_DELIVERY_SYSTEM">
<title><constant>DTV_DELIVERY_SYSTEM</constant></title>
<para>Specifies the type of Delivery system</para>
<para>Possible values: </para>
<programlisting>
typedef enum fe_delivery_system {
SYS_UNDEFINED,
SYS_DVBC_ANNEX_AC,
SYS_DVBC_ANNEX_B,
SYS_DVBT,
SYS_DSS,
SYS_DVBS,
SYS_DVBS2,
SYS_DVBH,
SYS_ISDBT,
SYS_ISDBS,
SYS_ISDBC,
SYS_ATSC,
SYS_ATSCMH,
SYS_DMBTH,
SYS_CMMB,
SYS_DAB,
SYS_DVBT2,
} fe_delivery_system_t;
</programlisting>
</section>
<section id="DTV_TRANSMISSION_MODE">
<title><constant>DTV_TRANSMISSION_MODE</constant></title>
<para>Specifies the number of carriers used by the standard</para>
<para>Possible values are:</para>
<programlisting>
typedef enum fe_transmit_mode {
TRANSMISSION_MODE_2K,
TRANSMISSION_MODE_8K,
TRANSMISSION_MODE_AUTO,
TRANSMISSION_MODE_4K,
TRANSMISSION_MODE_1K,
TRANSMISSION_MODE_16K,
TRANSMISSION_MODE_32K,
} fe_transmit_mode_t;
</programlisting>
<para>Notes:</para>
<para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
<para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
hardware will try to find the correct FFT-size (if capable) and will
use TMCC to fill in the missing parameters.</para>
<para>3) DVB-T specifies 2K and 8K as valid sizes.</para>
<para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para>
</section>
<section id="DTV_GUARD_INTERVAL">
<title><constant>DTV_GUARD_INTERVAL</constant></title>
<para>Possible values are:</para>
<programlisting>
typedef enum fe_guard_interval {
GUARD_INTERVAL_1_32,
GUARD_INTERVAL_1_16,
GUARD_INTERVAL_1_8,
GUARD_INTERVAL_1_4,
GUARD_INTERVAL_AUTO,
GUARD_INTERVAL_1_128,
GUARD_INTERVAL_19_128,
GUARD_INTERVAL_19_256,
} fe_guard_interval_t;
</programlisting>
<para>Notes:</para>
<para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
try to find the correct guard interval (if capable) and will use TMCC to fill
in the missing parameters.</para>
<para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para>
</section>
</section>
<section id="isdbt">
<title>ISDB-T frontend</title>
<para>This section describes shortly what are the possible parameters in the Linux
......@@ -32,73 +353,6 @@
<para>Parameters used by ISDB-T and ISDB-Tsb.</para>
<section id="isdbt-parms">
<title>Parameters that are common with DVB-T and ATSC</title>
<section id="isdbt-freq">
<title><constant>DTV_FREQUENCY</constant></title>
<para>Central frequency of the channel.</para>
<para>For ISDB-T the channels are usually transmitted with an offset of 143kHz. E.g. a
valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
the channel which is 6MHz.</para>
<para>As in ISDB-Tsb the channel consists of only one or three segments the
frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
central frequency of the channel is expected.</para>
</section>
<section id="isdbt-bw">
<title><constant>DTV_BANDWIDTH_HZ</constant> (optional)</title>
<para>Possible values:</para>
<para>For ISDB-T it should be always 6000000Hz (6MHz)</para>
<para>For ISDB-Tsb it can vary depending on the number of connected segments</para>
<para>Note: Hardware specific values might be given here, but standard
applications should not bother to set a value to this field as
standard demods are ignoring it anyway.</para>
<para>Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
DTV_ISDBT_SB_SEGMENT_COUNT).</para>
</section>
<section id="isdbt-delivery-sys">
<title><constant>DTV_DELIVERY_SYSTEM</constant></title>
<para>Possible values: <constant>SYS_ISDBT</constant></para>
</section>
<section id="isdbt-tx-mode">
<title><constant>DTV_TRANSMISSION_MODE</constant></title>
<para>ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
<para>Possible values: <constant>TRANSMISSION_MODE_2K</constant>, <constant>TRANSMISSION_MODE_8K</constant>,
<constant>TRANSMISSION_MODE_AUTO</constant>, <constant>TRANSMISSION_MODE_4K</constant></para>
<para>If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
hardware will try to find the correct FFT-size (if capable) and will
use TMCC to fill in the missing parameters.</para>
<para><constant>TRANSMISSION_MODE_4K</constant> is added at the same time as the other new parameters.</para>
</section>
<section id="isdbt-guard-interval">
<title><constant>DTV_GUARD_INTERVAL</constant></title>
<para>Possible values: <constant>GUARD_INTERVAL_1_32</constant>, <constant>GUARD_INTERVAL_1_16</constant>, <constant>GUARD_INTERVAL_1_8</constant>,
<constant>GUARD_INTERVAL_1_4</constant>, <constant>GUARD_INTERVAL_AUTO</constant></para>
<para>If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
try to find the correct guard interval (if capable) and will use TMCC to fill
in the missing parameters.</para>
</section>
</section>
<section id="isdbt-new-parms">
<title>ISDB-T only parameters</title>
......@@ -314,5 +568,20 @@
</section>
</section>
</section>
<section id="dvbt2-params">
<title>DVB-T2 parameters</title>
<para>This section covers parameters that apply only to the DVB-T2 delivery method. DVB-T2
support is currently in the early stages development so expect this section to grow
and become more detailed with time.</para>
<section id="dvbt2-plp-id">
<title><constant>DTV_DVBT2_PLP_ID</constant></title>
<para>DVB-T2 supports Physical Layer Pipes (PLP) to allow transmission of
many data types via a single multiplex. The API will soon support this
at which point this section will be expanded.</para>
</section>
</section>
</section>
</section>
Documentation/DocBook/dvb/frontend.h.xml
浏览文件 @ 1102c660
......@@ -176,14 +176,20 @@ typedef enum fe_transmit_mode {
TRANSMISSION_MODE_2K,
TRANSMISSION_MODE_8K,
TRANSMISSION_MODE_AUTO,
TRANSMISSION_MODE_4K
TRANSMISSION_MODE_4K,
TRANSMISSION_MODE_1K,
TRANSMISSION_MODE_16K,
TRANSMISSION_MODE_32K,
} fe_transmit_mode_t;
typedef enum fe_bandwidth {
BANDWIDTH_8_MHZ,
BANDWIDTH_7_MHZ,
BANDWIDTH_6_MHZ,
BANDWIDTH_AUTO
BANDWIDTH_AUTO,
BANDWIDTH_5_MHZ,
BANDWIDTH_10_MHZ,
BANDWIDTH_1_712_MHZ,
} fe_bandwidth_t;
......@@ -192,7 +198,10 @@ typedef enum fe_guard_interval {
GUARD_INTERVAL_1_16,
GUARD_INTERVAL_1_8,
GUARD_INTERVAL_1_4,
GUARD_INTERVAL_AUTO
GUARD_INTERVAL_AUTO,
GUARD_INTERVAL_1_128,
GUARD_INTERVAL_19_128,
GUARD_INTERVAL_19_256,
} fe_guard_interval_t;
......@@ -306,7 +315,9 @@ struct dvb_frontend_event {
#define DTV_ISDBS_TS_ID 42
#define DTV_MAX_COMMAND DTV_ISDBS_TS_ID
#define DTV_DVBT2_PLP_ID 43
#define DTV_MAX_COMMAND DTV_DVBT2_PLP_ID
typedef enum fe_pilot {
PILOT_ON,
......@@ -338,6 +349,7 @@ typedef enum fe_delivery_system {
SYS_DMBTH,
SYS_CMMB,
SYS_DAB,
SYS_DVBT2,
} fe_delivery_system_t;
struct dtv_cmds_h {
......
Documentation/DocBook/media-entities.tmpl
浏览文件 @ 1102c660
......@@ -270,6 +270,7 @@
<!ENTITY sub-write SYSTEM "v4l/func-write.xml">
<!ENTITY sub-io SYSTEM "v4l/io.xml">
<!ENTITY sub-grey SYSTEM "v4l/pixfmt-grey.xml">
<!ENTITY sub-m420 SYSTEM "v4l/pixfmt-m420.xml">
<!ENTITY sub-nv12 SYSTEM "v4l/pixfmt-nv12.xml">
<!ENTITY sub-nv12m SYSTEM "v4l/pixfmt-nv12m.xml">
<!ENTITY sub-nv12mt SYSTEM "v4l/pixfmt-nv12mt.xml">
......@@ -295,6 +296,7 @@
<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml">
<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml">
<!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.xml">
<!ENTITY sub-y10b SYSTEM "v4l/pixfmt-y10b.xml">
<!ENTITY sub-pixfmt SYSTEM "v4l/pixfmt.xml">
<!ENTITY sub-cropcap SYSTEM "v4l/vidioc-cropcap.xml">
<!ENTITY sub-dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml">
......
Documentation/DocBook/v4l/pixfmt-m420.xml 0 → 100644
浏览文件 @ 1102c660
<refentry id="V4L2-PIX-FMT-M420">
<refmeta>
<refentrytitle>V4L2_PIX_FMT_M420 ('M420')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname><constant>V4L2_PIX_FMT_M420</constant></refname>
<refpurpose>Format with &frac12; horizontal and vertical chroma
resolution, also known as YUV 4:2:0. Hybrid plane line-interleaved
layout.</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>M420 is a YUV format with &frac12; horizontal and vertical chroma
subsampling (YUV 4:2:0). Pixels are organized as interleaved luma and
chroma planes. Two lines of luma data are followed by one line of chroma
data.</para>
<para>The luma plane has one byte per pixel. The chroma plane contains
interleaved CbCr pixels subsampled by &frac12; in the horizontal and
vertical directions. Each CbCr pair belongs to four pixels. For example,
Cb<subscript>0</subscript>/Cr<subscript>0</subscript> belongs to
Y'<subscript>00</subscript>, Y'<subscript>01</subscript>,
Y'<subscript>10</subscript>, Y'<subscript>11</subscript>.</para>
<para>All line lengths are identical: if the Y lines include pad bytes
so do the CbCr lines.</para>
<example>
<title><constant>V4L2_PIX_FMT_M420</constant> 4 &times; 4
pixel image</title>
<formalpara>
<title>Byte Order.</title>
<para>Each cell is one byte.
<informaltable frame="none">
<tgroup cols="5" align="center">
<colspec align="left" colwidth="2*" />
<tbody valign="top">
<row>
<entry>start&nbsp;+&nbsp;0:</entry>
<entry>Y'<subscript>00</subscript></entry>
<entry>Y'<subscript>01</subscript></entry>
<entry>Y'<subscript>02</subscript></entry>
<entry>Y'<subscript>03</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;4:</entry>
<entry>Y'<subscript>10</subscript></entry>
<entry>Y'<subscript>11</subscript></entry>
<entry>Y'<subscript>12</subscript></entry>
<entry>Y'<subscript>13</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;8:</entry>
<entry>Cb<subscript>00</subscript></entry>
<entry>Cr<subscript>00</subscript></entry>
<entry>Cb<subscript>01</subscript></entry>
<entry>Cr<subscript>01</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;16:</entry>
<entry>Y'<subscript>20</subscript></entry>
<entry>Y'<subscript>21</subscript></entry>
<entry>Y'<subscript>22</subscript></entry>
<entry>Y'<subscript>23</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;20:</entry>
<entry>Y'<subscript>30</subscript></entry>
<entry>Y'<subscript>31</subscript></entry>
<entry>Y'<subscript>32</subscript></entry>
<entry>Y'<subscript>33</subscript></entry>
</row>
<row>
<entry>start&nbsp;+&nbsp;24:</entry>
<entry>Cb<subscript>10</subscript></entry>
<entry>Cr<subscript>10</subscript></entry>
<entry>Cb<subscript>11</subscript></entry>
<entry>Cr<subscript>11</subscript></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</formalpara>
<formalpara>
<title>Color Sample Location.</title>
<para>
<informaltable frame="none">
<tgroup cols="7" align="center">
<tbody valign="top">
<row>
<entry></entry>
<entry>0</entry><entry></entry><entry>1</entry><entry></entry>
<entry>2</entry><entry></entry><entry>3</entry>
</row>
<row>
<entry>0</entry>
<entry>Y</entry><entry></entry><entry>Y</entry><entry></entry>
<entry>Y</entry><entry></entry><entry>Y</entry>
</row>
<row>
<entry></entry>
<entry></entry><entry>C</entry><entry></entry><entry></entry>
<entry></entry><entry>C</entry><entry></entry>
</row>
<row>
<entry>1</entry>
<entry>Y</entry><entry></entry><entry>Y</entry><entry></entry>
<entry>Y</entry><entry></entry><entry>Y</entry>
</row>
<row>
<entry></entry>
</row>
<row>
<entry>2</entry>
<entry>Y</entry><entry></entry><entry>Y</entry><entry></entry>
<entry>Y</entry><entry></entry><entry>Y</entry>
</row>
<row>
<entry></entry>
<entry></entry><entry>C</entry><entry></entry><entry></entry>
<entry></entry><entry>C</entry><entry></entry>
</row>
<row>
<entry>3</entry>
<entry>Y</entry><entry></entry><entry>Y</entry><entry></entry>
<entry>Y</entry><entry></entry><entry>Y</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</formalpara>
</example>
</refsect1>
</refentry>
<!--
Local Variables:
mode: sgml
sgml-parent-document: "pixfmt.sgml"
indent-tabs-mode: nil
End:
-->
Documentation/DocBook/v4l/pixfmt-y10b.xml 0 → 100644
浏览文件 @ 1102c660
<refentry id="V4L2-PIX-FMT-Y10BPACK">
<refmeta>
<refentrytitle>V4L2_PIX_FMT_Y10BPACK ('Y10B')</refentrytitle>
&manvol;
</refmeta>
<refnamediv>
<refname><constant>V4L2_PIX_FMT_Y10BPACK</constant></refname>
<refpurpose>Grey-scale image as a bit-packed array</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>This is a packed grey-scale image format with a depth of 10 bits per
pixel. Pixels are stored in a bit-packed array of 10bit bits per pixel,
with no padding between them and with the most significant bits coming
first from the left.</para>
<example>
<title><constant>V4L2_PIX_FMT_Y10BPACK</constant> 4 pixel data stream taking 5 bytes</title>
<formalpara>
<title>Bit-packed representation</title>
<para>pixels cross the byte boundary and have a ratio of 5 bytes for each 4
pixels.
<informaltable frame="all">
<tgroup cols="5" align="center">
<colspec align="left" colwidth="2*" />
<tbody valign="top">
<row>
<entry>Y'<subscript>00[9:2]</subscript></entry>
<entry>Y'<subscript>00[1:0]</subscript>Y'<subscript>01[9:4]</subscript></entry>
<entry>Y'<subscript>01[3:0]</subscript>Y'<subscript>02[9:6]</subscript></entry>
<entry>Y'<subscript>02[5:0]</subscript>Y'<subscript>03[9:8]</subscript></entry>
<entry>Y'<subscript>03[7:0]</subscript></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</para>
</formalpara>
</example>
</refsect1>
</refentry>
Documentation/DocBook/v4l/pixfmt.xml
浏览文件 @ 1102c660
......@@ -697,6 +697,7 @@ information.</para>
&sub-grey;
&sub-y10;
&sub-y12;
&sub-y10b;
&sub-y16;
&sub-yuyv;
&sub-uyvy;
......@@ -712,6 +713,7 @@ information.</para>
&sub-nv12m;
&sub-nv12mt;
&sub-nv16;
&sub-m420;
</section>
<section>
......
Documentation/DocBook/v4l/subdev-formats.xml
浏览文件 @ 1102c660
......@@ -2522,5 +2522,51 @@
</tgroup>
</table>
</section>
<section>
<title>JPEG Compressed Formats</title>
<para>Those data formats consist of an ordered sequence of 8-bit bytes
obtained from JPEG compression process. Additionally to the
<constant>_JPEG</constant> prefix the format code is made of
the following information.
<itemizedlist>
<listitem>The number of bus samples per entropy encoded byte.</listitem>
<listitem>The bus width.</listitem>
</itemizedlist>
<para>For instance, for a JPEG baseline process and an 8-bit bus width
the format will be named <constant>V4L2_MBUS_FMT_JPEG_1X8</constant>.
</para>
</para>
<para>The following table lists existing JPEG compressed formats.</para>
<table pgwide="0" frame="none" id="v4l2-mbus-pixelcode-jpeg">
<title>JPEG Formats</title>
<tgroup cols="3">
<colspec colname="id" align="left" />
<colspec colname="code" align="left"/>
<colspec colname="remarks" align="left"/>
<thead>
<row>
<entry>Identifier</entry>
<entry>Code</entry>
<entry>Remarks</entry>
</row>
</thead>
<tbody valign="top">
<row id="V4L2-MBUS-FMT-JPEG-1X8">
<entry>V4L2_MBUS_FMT_JPEG_1X8</entry>
<entry>0x4001</entry>
<entry>Besides of its usage for the parallel bus this format is
recommended for transmission of JPEG data over MIPI CSI bus
using the User Defined 8-bit Data types.
</entry>
</row>
</tbody>
</tgroup>
</table>
</section>
</section>
</section>
Documentation/DocBook/v4l/videodev2.h.xml
浏览文件 @ 1102c660
......@@ -311,6 +311,9 @@ struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> {
#define <link linkend="V4L2-PIX-FMT-Y10">V4L2_PIX_FMT_Y10</link> v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
#define <link linkend="V4L2-PIX-FMT-Y16">V4L2_PIX_FMT_Y16</link> v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */
/* Grey bit-packed formats */
#define <link linkend="V4L2-PIX-FMT-Y10BPACK">V4L2_PIX_FMT_Y10BPACK</link> v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */
/* Palette formats */
#define <link linkend="V4L2-PIX-FMT-PAL8">V4L2_PIX_FMT_PAL8</link> v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */
......@@ -333,6 +336,7 @@ struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> {
#define <link linkend="V4L2-PIX-FMT-YUV420">V4L2_PIX_FMT_YUV420</link> v4l2_fourcc('Y', 'U', '1', '2') /* 12 YUV 4:2:0 */
#define <link linkend="V4L2-PIX-FMT-HI240">V4L2_PIX_FMT_HI240</link> v4l2_fourcc('H', 'I', '2', '4') /* 8 8-bit color */
#define <link linkend="V4L2-PIX-FMT-HM12">V4L2_PIX_FMT_HM12</link> v4l2_fourcc('H', 'M', '1', '2') /* 8 YUV 4:2:0 16x16 macroblocks */
#define <link linkend="V4L2-PIX-FMT-M420">V4L2_PIX_FMT_M420</link> v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */
/* two planes -- one Y, one Cr + Cb interleaved */
#define <link linkend="V4L2-PIX-FMT-NV12">V4L2_PIX_FMT_NV12</link> v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */
......
Documentation/HOWTO
浏览文件 @ 1102c660
......@@ -209,7 +209,7 @@ tools. One such tool that is particularly recommended is the Linux
Cross-Reference project, which is able to present source code in a
self-referential, indexed webpage format. An excellent up-to-date
repository of the kernel code may be found at:
http://users.sosdg.org/~qiyong/lxr/
http://lxr.linux.no/+trees
The development process
......
Documentation/IRQ-affinity.txt
浏览文件 @ 1102c660
......@@ -4,10 +4,11 @@ ChangeLog:
SMP IRQ affinity
/proc/irq/IRQ#/smp_affinity specifies which target CPUs are permitted
for a given IRQ source. It's a bitmask of allowed CPUs. It's not allowed
to turn off all CPUs, and if an IRQ controller does not support IRQ
affinity then the value will not change from the default 0xffffffff.
/proc/irq/IRQ#/smp_affinity and /proc/irq/IRQ#/smp_affinity_list specify
which target CPUs are permitted for a given IRQ source. It's a bitmask
(smp_affinity) or cpu list (smp_affinity_list) of allowed CPUs. It's not
allowed to turn off all CPUs, and if an IRQ controller does not support
IRQ affinity then the value will not change from the default of all cpus.
/proc/irq/default_smp_affinity specifies default affinity mask that applies
to all non-active IRQs. Once IRQ is allocated/activated its affinity bitmask
......@@ -54,3 +55,11 @@ round-trip min/avg/max = 0.1/0.5/585.4 ms
This time around IRQ44 was delivered only to the last four processors.
i.e counters for the CPU0-3 did not change.
Here is an example of limiting that same irq (44) to cpus 1024 to 1031:
[root@moon 44]# echo 1024-1031 > smp_affinity
[root@moon 44]# cat smp_affinity
1024-1031
Note that to do this with a bitmask would require 32 bitmasks of zero
to follow the pertinent one.
Documentation/SubmittingPatches
浏览文件 @ 1102c660
......@@ -714,10 +714,11 @@ Jeff Garzik, "Linux kernel patch submission format".
<http://linux.yyz.us/patch-format.html>
Greg Kroah-Hartman, "How to piss off a kernel subsystem maintainer".
<http://www.kroah.com/log/2005/03/31/>
<http://www.kroah.com/log/2005/07/08/>
<http://www.kroah.com/log/2005/10/19/>
<http://www.kroah.com/log/2006/01/11/>
<http://www.kroah.com/log/linux/maintainer.html>
<http://www.kroah.com/log/linux/maintainer-02.html>
<http://www.kroah.com/log/linux/maintainer-03.html>
<http://www.kroah.com/log/linux/maintainer-04.html>
<http://www.kroah.com/log/linux/maintainer-05.html>
NO!!!! No more huge patch bombs to linux-kernel@vger.kernel.org people!
<http://marc.theaimsgroup.com/?l=linux-kernel&m=112112749912944&w=2>
......
Documentation/blockdev/cciss.txt
浏览文件 @ 1102c660
......@@ -169,3 +169,18 @@ is issued which positions the tape to a known position. Typically you
must rewind the tape (by issuing "mt -f /dev/st0 rewind" for example)
before i/o can proceed again to a tape drive which was reset.
There is a cciss_tape_cmds module parameter which can be used to make cciss
allocate more commands for use by tape drives. Ordinarily only a few commands
(6) are allocated for tape drives because tape drives are slow and
infrequently used and the primary purpose of Smart Array controllers is to
act as a RAID controller for disk drives, so the vast majority of commands
are allocated for disk devices. However, if you have more than a few tape
drives attached to a smart array, the default number of commands may not be
enought (for example, if you have 8 tape drives, you could only rewind 6
at one time with the default number of commands.) The cciss_tape_cmds module
parameter allows more commands (up to 16 more) to be allocated for use by
tape drives. For example:
insmod cciss.ko cciss_tape_cmds=16
Or, as a kernel boot parameter passed in via grub: cciss.cciss_tape_cmds=8
Documentation/cachetlb.txt
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......@@ -16,7 +16,7 @@ on all processors in the system. Don't let this scare you into
thinking SMP cache/tlb flushing must be so inefficient, this is in
fact an area where many optimizations are possible. For example,
if it can be proven that a user address space has never executed
on a cpu (see vma->cpu_vm_mask), one need not perform a flush
on a cpu (see mm_cpumask()), one need not perform a flush
for this address space on that cpu.
First, the TLB flushing interfaces, since they are the simplest. The
......
Documentation/devicetree/bindings/crypto/fsl-sec4.txt 0 → 100644
浏览文件 @ 1102c660
=====================================================================
SEC 4 Device Tree Binding
Copyright (C) 2008-2011 Freescale Semiconductor Inc.
CONTENTS
-Overview
-SEC 4 Node
-Job Ring Node
-Run Time Integrity Check (RTIC) Node
-Run Time Integrity Check (RTIC) Memory Node
-Secure Non-Volatile Storage (SNVS) Node
-Full Example
NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator
Accelerator and Assurance Module (CAAM).
=====================================================================
Overview
DESCRIPTION
SEC 4 h/w can process requests from 2 types of sources.
1. DPAA Queue Interface (HW interface between Queue Manager & SEC 4).
2. Job Rings (HW interface between cores & SEC 4 registers).
High Speed Data Path Configuration:
HW interface between QM & SEC 4 and also BM & SEC 4, on DPAA-enabled parts
such as the P4080. The number of simultaneous dequeues the QI can make is
equal to the number of Descriptor Controller (DECO) engines in a particular
SEC version. E.g., the SEC 4.0 in the P4080 has 5 DECOs and can thus
dequeue from 5 subportals simultaneously.
Job Ring Data Path Configuration:
Each JR is located on a separate 4k page, they may (or may not) be made visible
in the memory partition devoted to a particular core. The P4080 has 4 JRs, so
up to 4 JRs can be configured; and all 4 JRs process requests in parallel.
=====================================================================
SEC 4 Node
Description
Node defines the base address of the SEC 4 block.
This block specifies the address range of all global
configuration registers for the SEC 4 block. It
also receives interrupts from the Run Time Integrity Check
(RTIC) function within the SEC 4 block.
PROPERTIES
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0"
- #address-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing physical addresses in child nodes.
- #size-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing the size of physical addresses in
child nodes.
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical
address and length of the SEC4 configuration registers.
registers
- ranges
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical address
range of the SEC 4.0 register space (-SNVS not included). A
triplet that includes the child address, parent address, &
length.
- interrupts
Usage: required
Value type: <prop_encoded-array>
Definition: Specifies the interrupts generated by this
device. The value of the interrupts property
consists of one interrupt specifier. The format
of the specifier is defined by the binding document
describing the node's interrupt parent.
- interrupt-parent
Usage: (required if interrupt property is defined)
Value type: <phandle>
Definition: A single <phandle> value that points
to the interrupt parent to which the child domain
is being mapped.
Note: All other standard properties (see the ePAPR) are allowed
but are optional.
EXAMPLE
crypto@300000 {
compatible = "fsl,sec-v4.0";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x300000 0x10000>;
ranges = <0 0x300000 0x10000>;
interrupt-parent = <&mpic>;
interrupts = <92 2>;
};
=====================================================================
Job Ring (JR) Node
Child of the crypto node defines data processing interface to SEC 4
across the peripheral bus for purposes of processing
cryptographic descriptors. The specified address
range can be made visible to one (or more) cores.
The interrupt defined for this node is controlled within
the address range of this node.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-job-ring"
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: Specifies a two JR parameters: an offset from
the parent physical address and the length the JR registers.
- fsl,liodn
Usage: optional-but-recommended
Value type: <prop-encoded-array>
Definition:
Specifies the LIODN to be used in conjunction with
the ppid-to-liodn table that specifies the PPID to LIODN mapping.
Needed if the PAMU is used. Value is a 12 bit value
where value is a LIODN ID for this JR. This property is
normally set by boot firmware.
- interrupts
Usage: required
Value type: <prop_encoded-array>
Definition: Specifies the interrupts generated by this
device. The value of the interrupts property
consists of one interrupt specifier. The format
of the specifier is defined by the binding document
describing the node's interrupt parent.
- interrupt-parent
Usage: (required if interrupt property is defined)
Value type: <phandle>
Definition: A single <phandle> value that points
to the interrupt parent to which the child domain
is being mapped.
EXAMPLE
jr@1000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x1000 0x1000>;
fsl,liodn = <0x081>;
interrupt-parent = <&mpic>;
interrupts = <88 2>;
};
=====================================================================
Run Time Integrity Check (RTIC) Node
Child node of the crypto node. Defines a register space that
contains up to 5 sets of addresses and their lengths (sizes) that
will be checked at run time. After an initial hash result is
calculated, these addresses are checked by HW to monitor any
change. If any memory is modified, a Security Violation is
triggered (see SNVS definition).
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-rtic".
- #address-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing physical addresses in child nodes. Must
have a value of 1.
- #size-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing the size of physical addresses in
child nodes. Must have a value of 1.
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies a two parameters:
an offset from the parent physical address and the length
the SEC4 registers.
- ranges
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical address
range of the SEC 4 register space (-SNVS not included). A
triplet that includes the child address, parent address, &
length.
EXAMPLE
rtic@6000 {
compatible = "fsl,sec-v4.0-rtic";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x6000 0x100>;
ranges = <0x0 0x6100 0xe00>;
};
=====================================================================
Run Time Integrity Check (RTIC) Memory Node
A child node that defines individual RTIC memory regions that are used to
perform run-time integrity check of memory areas that should not modified.
The node defines a register that contains the memory address &
length (combined) and a second register that contains the hash result
in big endian format.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-rtic-memory".
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies two parameters:
an offset from the parent physical address and the length:
1. The location of the RTIC memory address & length registers.
2. The location RTIC hash result.
- fsl,rtic-region
Usage: optional-but-recommended
Value type: <prop-encoded-array>
Definition:
Specifies the HW address (36 bit address) for this region
followed by the length of the HW partition to be checked;
the address is represented as a 64 bit quantity followed
by a 32 bit length.
- fsl,liodn
Usage: optional-but-recommended
Value type: <prop-encoded-array>
Definition:
Specifies the LIODN to be used in conjunction with
the ppid-to-liodn table that specifies the PPID to LIODN
mapping. Needed if the PAMU is used. Value is a 12 bit value
where value is a LIODN ID for this RTIC memory region. This
property is normally set by boot firmware.
EXAMPLE
rtic-a@0 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x00 0x20 0x100 0x80>;
fsl,liodn = <0x03c>;
fsl,rtic-region = <0x12345678 0x12345678 0x12345678>;
};
=====================================================================
Secure Non-Volatile Storage (SNVS) Node
Node defines address range and the associated
interrupt for the SNVS function. This function
monitors security state information & reports
security violations.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-mon".
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical
address and length of the SEC4 configuration
registers.
- interrupts
Usage: required
Value type: <prop_encoded-array>
Definition: Specifies the interrupts generated by this
device. The value of the interrupts property
consists of one interrupt specifier. The format
of the specifier is defined by the binding document
describing the node's interrupt parent.
- interrupt-parent
Usage: (required if interrupt property is defined)
Value type: <phandle>
Definition: A single <phandle> value that points
to the interrupt parent to which the child domain
is being mapped.
EXAMPLE
sec_mon@314000 {
compatible = "fsl,sec-v4.0-mon";
reg = <0x314000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <93 2>;
};
=====================================================================
FULL EXAMPLE
crypto: crypto@300000 {
compatible = "fsl,sec-v4.0";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x300000 0x10000>;
ranges = <0 0x300000 0x10000>;
interrupt-parent = <&mpic>;
interrupts = <92 2>;
sec_jr0: jr@1000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x1000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <88 2>;
};
sec_jr1: jr@2000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x2000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <89 2>;
};
sec_jr2: jr@3000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x3000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <90 2>;
};
sec_jr3: jr@4000 {
compatible = "fsl,sec-v4.0-job-ring";
reg = <0x4000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <91 2>;
};
rtic@6000 {
compatible = "fsl,sec-v4.0-rtic";
#address-cells = <1>;
#size-cells = <1>;
reg = <0x6000 0x100>;
ranges = <0x0 0x6100 0xe00>;
rtic_a: rtic-a@0 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x00 0x20 0x100 0x80>;
};
rtic_b: rtic-b@20 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x20 0x20 0x200 0x80>;
};
rtic_c: rtic-c@40 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x40 0x20 0x300 0x80>;
};
rtic_d: rtic-d@60 {
compatible = "fsl,sec-v4.0-rtic-memory";
reg = <0x60 0x20 0x500 0x80>;
};
};
};
sec_mon: sec_mon@314000 {
compatible = "fsl,sec-v4.0-mon";
reg = <0x314000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <93 2>;
};
=====================================================================
Documentation/devicetree/bindings/net/can/fsl-flexcan.txt 0 → 100755
浏览文件 @ 1102c660
CAN Device Tree Bindings
------------------------
2011 Freescale Semiconductor, Inc.
fsl,flexcan-v1.0 nodes
-----------------------
In addition to the required compatible-, reg- and interrupt-properties, you can
also specify which clock source shall be used for the controller.
CPI Clock- Can Protocol Interface Clock
This CLK_SRC bit of CTRL(control register) selects the clock source to
the CAN Protocol Interface(CPI) to be either the peripheral clock
(driven by the PLL) or the crystal oscillator clock. The selected clock
is the one fed to the prescaler to generate the Serial Clock (Sclock).
The PRESDIV field of CTRL(control register) controls a prescaler that
generates the Serial Clock (Sclock), whose period defines the
time quantum used to compose the CAN waveform.
Can Engine Clock Source
There are two sources for CAN clock
- Platform Clock It represents the bus clock
- Oscillator Clock
Peripheral Clock (PLL)
--------------
|
--------- -------------
| |CPI Clock | Prescaler | Sclock
| |---------------->| (1.. 256) |------------>
--------- -------------
| |
-------------- ---------------------CLK_SRC
Oscillator Clock
- fsl,flexcan-clock-source : CAN Engine Clock Source.This property selects
the peripheral clock. PLL clock is fed to the
prescaler to generate the Serial Clock (Sclock).
Valid values are "oscillator" and "platform"
"oscillator": CAN engine clock source is oscillator clock.
"platform" The CAN engine clock source is the bus clock
(platform clock).
- fsl,flexcan-clock-divider : for the reference and system clock, an additional
clock divider can be specified.
- clock-frequency: frequency required to calculate the bitrate for FlexCAN.
Note:
- v1.0 of flexcan-v1.0 represent the IP block version for P1010 SOC.
- P1010 does not have oscillator as the Clock Source.So the default
Clock Source is platform clock.
Examples:
can0@1c000 {
compatible = "fsl,flexcan-v1.0";
reg = <0x1c000 0x1000>;
interrupts = <48 0x2>;
interrupt-parent = <&mpic>;
fsl,flexcan-clock-source = "platform";
fsl,flexcan-clock-divider = <2>;
clock-frequency = <fixed by u-boot>;
};
Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
浏览文件 @ 1102c660
......@@ -74,3 +74,57 @@ Example:
interrupt-parent = <&mpic>;
phy-handle = <&phy0>
};
* Gianfar PTP clock nodes
General Properties:
- compatible Should be "fsl,etsec-ptp"
- reg Offset and length of the register set for the device
- interrupts There should be at least two interrupts. Some devices
have as many as four PTP related interrupts.
Clock Properties:
- fsl,tclk-period Timer reference clock period in nanoseconds.
- fsl,tmr-prsc Prescaler, divides the output clock.
- fsl,tmr-add Frequency compensation value.
- fsl,tmr-fiper1 Fixed interval period pulse generator.
- fsl,tmr-fiper2 Fixed interval period pulse generator.
- fsl,max-adj Maximum frequency adjustment in parts per billion.
These properties set the operational parameters for the PTP
clock. You must choose these carefully for the clock to work right.
Here is how to figure good values:
TimerOsc = system clock MHz
tclk_period = desired clock period nanoseconds
NominalFreq = 1000 / tclk_period MHz
FreqDivRatio = TimerOsc / NominalFreq (must be greater that 1.0)
tmr_add = ceil(2^32 / FreqDivRatio)
OutputClock = NominalFreq / tmr_prsc MHz
PulseWidth = 1 / OutputClock microseconds
FiperFreq1 = desired frequency in Hz
FiperDiv1 = 1000000 * OutputClock / FiperFreq1
tmr_fiper1 = tmr_prsc * tclk_period * FiperDiv1 - tclk_period
max_adj = 1000000000 * (FreqDivRatio - 1.0) - 1
The calculation for tmr_fiper2 is the same as for tmr_fiper1. The
driver expects that tmr_fiper1 will be correctly set to produce a 1
Pulse Per Second (PPS) signal, since this will be offered to the PPS
subsystem to synchronize the Linux clock.
Example:
ptp_clock@24E00 {
compatible = "fsl,etsec-ptp";
reg = <0x24E00 0xB0>;
interrupts = <12 0x8 13 0x8>;
interrupt-parent = < &ipic >;
fsl,tclk-period = <10>;
fsl,tmr-prsc = <100>;
fsl,tmr-add = <0x999999A4>;
fsl,tmr-fiper1 = <0x3B9AC9F6>;
fsl,tmr-fiper2 = <0x00018696>;
fsl,max-adj = <659999998>;
};
Documentation/devicetree/bindings/powerpc/fsl/ifc.txt 0 → 100644
浏览文件 @ 1102c660
Integrated Flash Controller
Properties:
- name : Should be ifc
- compatible : should contain "fsl,ifc". The version of the integrated
flash controller can be found in the IFC_REV register at
offset zero.
- #address-cells : Should be either two or three. The first cell is the
chipselect number, and the remaining cells are the
offset into the chipselect.
- #size-cells : Either one or two, depending on how large each chipselect
can be.
- reg : Offset and length of the register set for the device
- interrupts : IFC has two interrupts. The first one is the "common"
interrupt(CM_EVTER_STAT), and second is the NAND interrupt
(NAND_EVTER_STAT).
- ranges : Each range corresponds to a single chipselect, and covers
the entire access window as configured.
Child device nodes describe the devices connected to IFC such as NOR (e.g.
cfi-flash) and NAND (fsl,ifc-nand). There might be board specific devices
like FPGAs, CPLDs, etc.
Example:
ifc@ffe1e000 {
compatible = "fsl,ifc", "simple-bus";
#address-cells = <2>;
#size-cells = <1>;
reg = <0x0 0xffe1e000 0 0x2000>;
interrupts = <16 2 19 2>;
/* NOR, NAND Flashes and CPLD on board */
ranges = <0x0 0x0 0x0 0xee000000 0x02000000
0x1 0x0 0x0 0xffa00000 0x00010000
0x3 0x0 0x0 0xffb00000 0x00020000>;
flash@0,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "cfi-flash";
reg = <0x0 0x0 0x2000000>;
bank-width = <2>;
device-width = <1>;
partition@0 {
/* 32MB for user data */
reg = <0x0 0x02000000>;
label = "NOR Data";
};
};
flash@1,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,ifc-nand";
reg = <0x1 0x0 0x10000>;
partition@0 {
/* This location must not be altered */
/* 1MB for u-boot Bootloader Image */
reg = <0x0 0x00100000>;
label = "NAND U-Boot Image";
read-only;
};
};
cpld@3,0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,p1010rdb-cpld";
reg = <0x3 0x0 0x000001f>;
};
};
Documentation/devicetree/bindings/powerpc/fsl/mpic-timer.txt 0 → 100644
浏览文件 @ 1102c660
* Freescale MPIC timers
Required properties:
- compatible: "fsl,mpic-global-timer"
- reg : Contains two regions. The first is the main timer register bank
(GTCCRxx, GTBCRxx, GTVPRxx, GTDRxx). The second is the timer control
register (TCRx) for the group.
- fsl,available-ranges: use <start count> style section to define which
timer interrupts can be used. This property is optional; without this,
all timers within the group can be used.
- interrupts: one interrupt per timer in the group, in order, starting
with timer zero. If timer-available-ranges is present, only the
interrupts that correspond to available timers shall be present.
Example:
/* Note that this requires #interrupt-cells to be 4 */
timer0: timer@41100 {
compatible = "fsl,mpic-global-timer";
reg = <0x41100 0x100 0x41300 4>;
/* Another AMP partition is using timers 0 and 1 */
fsl,available-ranges = <2 2>;
interrupts = <2 0 3 0
3 0 3 0>;
};
timer1: timer@42100 {
compatible = "fsl,mpic-global-timer";
reg = <0x42100 0x100 0x42300 4>;
interrupts = <4 0 3 0
5 0 3 0
6 0 3 0
7 0 3 0>;
};
Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
浏览文件 @ 1102c660
......@@ -190,7 +190,7 @@ EXAMPLE 4
*/
timer0: timer@41100 {
compatible = "fsl,mpic-global-timer";
reg = <0x41100 0x100>;
reg = <0x41100 0x100 0x41300 4>;
interrupts = <0 0 3 0
1 0 3 0
2 0 3 0
......
Documentation/devicetree/bindings/powerpc/nintendo/wii.txt
浏览文件 @ 1102c660
......@@ -127,7 +127,7 @@ Nintendo Wii device tree
- reg : should contain the SDHCI registers location and length
- interrupts : should contain the SDHCI interrupt
1.j) The Inter-Processsor Communication (IPC) node
1.j) The Inter-Processor Communication (IPC) node
Represent the Inter-Processor Communication interface. This interface
enables communications between the Broadway and the Starlet processors.
......
Documentation/dontdiff
浏览文件 @ 1102c660
*.a
*.aux
*.bin
*.bz2
*.cis
*.cpio
*.csp
*.dsp
......@@ -8,6 +10,8 @@
*.elf
*.eps
*.fw
*.gcno
*.gcov
*.gen.S
*.gif
*.grep
......@@ -19,14 +23,20 @@
*.ko
*.log
*.lst
*.lzma
*.lzo
*.mo
*.moc
*.mod.c
*.o
*.o.*
*.order
*.orig
*.out
*.patch
*.pdf
*.png
*.pot
*.ps
*.rej
*.s
......@@ -39,16 +49,22 @@
*.tex
*.ver
*.xml
*.xz
*_MODULES
*_vga16.c
*~
\#*#
*.9
*.9.gz
.*
.*.d
.mm
53c700_d.h
CVS
ChangeSet
GPATH
GRTAGS
GSYMS
GTAGS
Image
Kerntypes
Module.markers
......@@ -57,15 +73,14 @@ PENDING
SCCS
System.map*
TAGS
aconf
af_names.h
aic7*reg.h*
aic7*reg_print.c*
aic7*seq.h*
aicasm
aicdb.h*
altivec1.c
altivec2.c
altivec4.c
altivec8.c
altivec*.c
asm-offsets.h
asm_offsets.h
autoconf.h*
......@@ -80,6 +95,7 @@ btfixupprep
build
bvmlinux
bzImage*
capability_names.h
capflags.c
classlist.h*
comp*.log
......@@ -88,7 +104,8 @@ conf
config
config-*
config_data.h*
config_data.gz*
config.mak
config.mak.autogen
conmakehash
consolemap_deftbl.c*
cpustr.h
......@@ -96,7 +113,9 @@ crc32table.h*
cscope.*
defkeymap.c
devlist.h*
dnotify_test
docproc
dslm
elf2ecoff
elfconfig.h*
evergreen_reg_safe.h
......@@ -105,6 +124,7 @@ flask.h
fore200e_mkfirm
fore200e_pca_fw.c*
gconf
gconf.glade.h
gen-devlist
gen_crc32table
gen_init_cpio
......@@ -112,11 +132,12 @@ generated
genheaders
genksyms
*_gray256.c
hpet_example
hugepage-mmap
hugepage-shm
ihex2fw
ikconfig.h*
inat-tables.c
initramfs_data.cpio
initramfs_data.cpio.gz
initramfs_list
int16.c
int1.c
......@@ -133,15 +154,19 @@ kxgettext
lkc_defs.h
lex.c
lex.*.c
linux
logo_*.c
logo_*_clut224.c
logo_*_mono.c
lxdialog
mach
mach-types
mach-types.h
machtypes.h
map
map_hugetlb
maui_boot.h
media
mconf
miboot*
mk_elfconfig
......@@ -150,23 +175,29 @@ mkbugboot
mkcpustr
mkdep
mkprep
mkregtable
mktables
mktree
modpost
modules.builtin
modules.order
modversions.h*
nconf
ncscope.*
offset.h
offsets.h
oui.c*
page-types
parse.c
parse.h
patches*
pca200e.bin
pca200e_ecd.bin2
piggy.gz
perf.data
perf.data.old
perf-archive
piggyback
piggy.gzip
piggy.S
pnmtologo
ppc_defs.h*
......@@ -177,10 +208,9 @@ r200_reg_safe.h
r300_reg_safe.h
r420_reg_safe.h
r600_reg_safe.h
raid6altivec*.c
raid6int*.c
raid6tables.c
recordmcount
relocs
rlim_names.h
rn50_reg_safe.h
rs600_reg_safe.h
rv515_reg_safe.h
......@@ -194,6 +224,7 @@ split-include
syscalltab.h
tables.c
tags
test_get_len
tftpboot.img
timeconst.h
times.h*
......@@ -210,10 +241,13 @@ vdso32.so.dbg
vdso64.lds
vdso64.so.dbg
version.h*
vmImage
vmlinux
vmlinux-*
vmlinux.aout
vmlinux.bin.all
vmlinux.lds
vmlinuz
voffset.h
vsyscall.lds
vsyscall_32.lds
......
Documentation/feature-removal-schedule.txt
浏览文件 @ 1102c660
......@@ -35,17 +35,6 @@ Who: Luis R. Rodriguez <lrodriguez@atheros.com>
---------------------------
What: AR9170USB
When: 2.6.40
Why: This driver is deprecated and the firmware is no longer
maintained. The replacement driver "carl9170" has been
around for a while, so the devices are still supported.
Who: Christian Lamparter <chunkeey@googlemail.com>
---------------------------
What: IRQF_SAMPLE_RANDOM
Check: IRQF_SAMPLE_RANDOM
When: July 2009
......@@ -226,7 +215,7 @@ Who: Zhang Rui <rui.zhang@intel.com>
What: CONFIG_ACPI_PROCFS_POWER
When: 2.6.39
Why: sysfs I/F for ACPI power devices, including AC and Battery,
has been working in upstream kenrel since 2.6.24, Sep 2007.
has been working in upstream kernel since 2.6.24, Sep 2007.
In 2.6.37, we make the sysfs I/F always built in and this option
disabled by default.
Remove this option and the ACPI power procfs interface in 2.6.39.
......@@ -405,16 +394,6 @@ Who: anybody or Florian Mickler <florian@mickler.org>
----------------------------
What: capifs
When: February 2011
Files: drivers/isdn/capi/capifs.*
Why: udev fully replaces this special file system that only contains CAPI
NCCI TTY device nodes. User space (pppdcapiplugin) works without
noticing the difference.
Who: Jan Kiszka <jan.kiszka@web.de>
----------------------------
What: KVM paravirt mmu host support
When: January 2011
Why: The paravirt mmu host support is slower than non-paravirt mmu, both
......@@ -572,3 +551,26 @@ Why: These legacy callbacks should no longer be used as i2c-core offers
Who: Jean Delvare <khali@linux-fr.org>
----------------------------
What: Support for UVCIOC_CTRL_ADD in the uvcvideo driver
When: 2.6.42
Why: The information passed to the driver by this ioctl is now queried
dynamically from the device.
Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
----------------------------
What: Support for UVCIOC_CTRL_MAP_OLD in the uvcvideo driver
When: 2.6.42
Why: Used only by applications compiled against older driver versions.
Superseded by UVCIOC_CTRL_MAP which supports V4L2 menu controls.
Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
----------------------------
What: Support for UVCIOC_CTRL_GET and UVCIOC_CTRL_SET in the uvcvideo driver
When: 2.6.42
Why: Superseded by the UVCIOC_CTRL_QUERY ioctl.
Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
----------------------------
Documentation/filesystems/9p.txt
浏览文件 @ 1102c660
......@@ -25,6 +25,8 @@ Other applications are described in the following papers:
http://xcpu.org/papers/cellfs-talk.pdf
* PROSE I/O: Using 9p to enable Application Partitions
http://plan9.escet.urjc.es/iwp9/cready/PROSE_iwp9_2006.pdf
* VirtFS: A Virtualization Aware File System pass-through
http://goo.gl/3WPDg
USAGE
=====
......@@ -130,31 +132,20 @@ OPTIONS
RESOURCES
=========
Our current recommendation is to use Inferno (http://www.vitanuova.com/nferno/index.html)
as the 9p server. You can start a 9p server under Inferno by issuing the
following command:
; styxlisten -A tcp!*!564 export '#U*'
Protocol specifications are maintained on github:
http://ericvh.github.com/9p-rfc/
The -A specifies an unauthenticated export. The 564 is the port # (you may
have to choose a higher port number if running as a normal user). The '#U*'
specifies exporting the root of the Linux name space. You may specify a
subset of the namespace by extending the path: '#U*'/tmp would just export
/tmp. For more information, see the Inferno manual pages covering styxlisten
and export.
9p client and server implementations are listed on
http://9p.cat-v.org/implementations
A Linux version of the 9p server is now maintained under the npfs project
on sourceforge (http://sourceforge.net/projects/npfs). The currently
maintained version is the single-threaded version of the server (named spfs)
available from the same SVN repository.
A 9p2000.L server is being developed by LLNL and can be found
at http://code.google.com/p/diod/
There are user and developer mailing lists available through the v9fs project
on sourceforge (http://sourceforge.net/projects/v9fs).
A stand-alone version of the module (which should build for any 2.6 kernel)
is available via (http://github.com/ericvh/9p-sac/tree/master)
News and other information is maintained on SWiK (http://swik.net/v9fs)
and the Wiki (http://sf.net/apps/mediawiki/v9fs/index.php).
News and other information is maintained on a Wiki.
(http://sf.net/apps/mediawiki/v9fs/index.php).
Bug reports may be issued through the kernel.org bugzilla
(http://bugzilla.kernel.org)
......
Documentation/filesystems/proc.txt
浏览文件 @ 1102c660
......@@ -574,6 +574,12 @@ The contents of each smp_affinity file is the same by default:
> cat /proc/irq/0/smp_affinity
ffffffff
There is an alternate interface, smp_affinity_list which allows specifying
a cpu range instead of a bitmask:
> cat /proc/irq/0/smp_affinity_list
1024-1031
The default_smp_affinity mask applies to all non-active IRQs, which are the
IRQs which have not yet been allocated/activated, and hence which lack a
/proc/irq/[0-9]* directory.
......@@ -583,12 +589,13 @@ reports itself as being attached. This hardware locality information does not
include information about any possible driver locality preference.
prof_cpu_mask specifies which CPUs are to be profiled by the system wide
profiler. Default value is ffffffff (all cpus).
profiler. Default value is ffffffff (all cpus if there are only 32 of them).
The way IRQs are routed is handled by the IO-APIC, and it's Round Robin
between all the CPUs which are allowed to handle it. As usual the kernel has
more info than you and does a better job than you, so the defaults are the
best choice for almost everyone.
best choice for almost everyone. [Note this applies only to those IO-APIC's
that support "Round Robin" interrupt distribution.]
There are three more important subdirectories in /proc: net, scsi, and sys.
The general rule is that the contents, or even the existence of these
......
Documentation/filesystems/ubifs.txt
浏览文件 @ 1102c660
......@@ -115,28 +115,8 @@ ubi.mtd=0 root=ubi0:rootfs rootfstype=ubifs
Module Parameters for Debugging
===============================
When UBIFS has been compiled with debugging enabled, there are 3 module
When UBIFS has been compiled with debugging enabled, there are 2 module
parameters that are available to control aspects of testing and debugging.
The parameters are unsigned integers where each bit controls an option.
The parameters are:
debug_msgs Selects which debug messages to display, as follows:
Message Type Flag value
General messages 1
Journal messages 2
Mount messages 4
Commit messages 8
LEB search messages 16
Budgeting messages 32
Garbage collection messages 64
Tree Node Cache (TNC) messages 128
LEB properties (lprops) messages 256
Input/output messages 512
Log messages 1024
Scan messages 2048
Recovery messages 4096
debug_chks Selects extra checks that UBIFS can do while running:
......@@ -154,11 +134,9 @@ debug_tsts Selects a mode of testing, as follows:
Test mode Flag value
Force in-the-gaps method 2
Failure mode for recovery testing 4
For example, set debug_msgs to 5 to display General messages and Mount
messages.
For example, set debug_chks to 3 to enable general and TNC checks.
References
......
Documentation/hid/hidraw.txt 0 → 100644
浏览文件 @ 1102c660
HIDRAW - Raw Access to USB and Bluetooth Human Interface Devices
==================================================================
The hidraw driver provides a raw interface to USB and Bluetooth Human
Interface Devices (HIDs). It differs from hiddev in that reports sent and
received are not parsed by the HID parser, but are sent to and received from
the device unmodified.
Hidraw should be used if the userspace application knows exactly how to
communicate with the hardware device, and is able to construct the HID
reports manually. This is often the case when making userspace drivers for
custom HID devices.
Hidraw is also useful for communicating with non-conformant HID devices
which send and receive data in a way that is inconsistent with their report
descriptors. Because hiddev parses reports which are sent and received
through it, checking them against the device's report descriptor, such
communication with these non-conformant devices is impossible using hiddev.
Hidraw is the only alternative, short of writing a custom kernel driver, for
these non-conformant devices.
A benefit of hidraw is that its use by userspace applications is independent
of the underlying hardware type. Currently, Hidraw is implemented for USB
and Bluetooth. In the future, as new hardware bus types are developed which
use the HID specification, hidraw will be expanded to add support for these
new bus types.
Hidraw uses a dynamic major number, meaning that udev should be relied on to
create hidraw device nodes. Udev will typically create the device nodes
directly under /dev (eg: /dev/hidraw0). As this location is distribution-
and udev rule-dependent, applications should use libudev to locate hidraw
devices attached to the system. There is a tutorial on libudev with a
working example at:
http://www.signal11.us/oss/udev/
The HIDRAW API
---------------
read()
-------
read() will read a queued report received from the HID device. On USB
devices, the reports read using read() are the reports sent from the device
on the INTERRUPT IN endpoint. By default, read() will block until there is
a report available to be read. read() can be made non-blocking, by passing
the O_NONBLOCK flag to open(), or by setting the O_NONBLOCK flag using
fcntl().
On a device which uses numbered reports, the first byte of the returned data
will be the report number; the report data follows, beginning in the second
byte. For devices which do not use numbered reports, the report data
will begin at the first byte.
write()
--------
The write() function will write a report to the device. For USB devices, if
the device has an INTERRUPT OUT endpoint, the report will be sent on that
endpoint. If it does not, the report will be sent over the control endpoint,
using a SET_REPORT transfer.
The first byte of the buffer passed to write() should be set to the report
number. If the device does not use numbered reports, the first byte should
be set to 0. The report data itself should begin at the second byte.
ioctl()
--------
Hidraw supports the following ioctls:
HIDIOCGRDESCSIZE: Get Report Descriptor Size
This ioctl will get the size of the device's report descriptor.
HIDIOCGRDESC: Get Report Descriptor
This ioctl returns the device's report descriptor using a
hidraw_report_descriptor struct. Make sure to set the size field of the
hidraw_report_descriptor struct to the size returned from HIDIOCGRDESCSIZE.
HIDIOCGRAWINFO: Get Raw Info
This ioctl will return a hidraw_devinfo struct containing the bus type, the
vendor ID (VID), and product ID (PID) of the device. The bus type can be one
of:
BUS_USB
BUS_HIL
BUS_BLUETOOTH
BUS_VIRTUAL
which are defined in linux/input.h.
HIDIOCGRAWNAME(len): Get Raw Name
This ioctl returns a string containing the vendor and product strings of
the device. The returned string is Unicode, UTF-8 encoded.
HIDIOCGRAWPHYS(len): Get Physical Address
This ioctl returns a string representing the physical address of the device.
For USB devices, the string contains the physical path to the device (the
USB controller, hubs, ports, etc). For Bluetooth devices, the string
contains the hardware (MAC) address of the device.
HIDIOCSFEATURE(len): Send a Feature Report
This ioctl will send a feature report to the device. Per the HID
specification, feature reports are always sent using the control endpoint.
Set the first byte of the supplied buffer to the report number. For devices
which do not use numbered reports, set the first byte to 0. The report data
begins in the second byte. Make sure to set len accordingly, to one more
than the length of the report (to account for the report number).
HIDIOCGFEATURE(len): Get a Feature Report
This ioctl will request a feature report from the device using the control
endpoint. The first byte of the supplied buffer should be set to the report
number of the requested report. For devices which do not use numbered
reports, set the first byte to 0. The report will be returned starting at
the first byte of the buffer (ie: the report number is not returned).
Example
---------
In samples/, find hid-example.c, which shows examples of read(), write(),
and all the ioctls for hidraw. The code may be used by anyone for any
purpose, and can serve as a starting point for developing applications using
hidraw.
Document by:
Alan Ott <alan@signal11.us>, Signal 11 Software
Documentation/hwmon/adm1275 0 → 100644
浏览文件 @ 1102c660
Kernel driver adm1275
=====================
Supported chips:
* Analog Devices ADM1275
Prefix: 'adm1275'
Addresses scanned: -
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
This driver supports hardware montoring for Analog Devices ADM1275 Hot-Swap
Controller and Digital Power Monitor.
The ADM1275 is a hot-swap controller that allows a circuit board to be removed
from or inserted into a live backplane. It also features current and voltage
readback via an integrated 12-bit analog-to-digital converter (ADC), accessed
using a PMBus. interface.
The driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data. Please see
Documentation/hwmon/pmbus for details.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in1_label "vin1" or "vout1" depending on chip variant and
configuration.
in1_input Measured voltage. From READ_VOUT register.
in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
curr1_label "iout1"
curr1_input Measured current. From READ_IOUT register.
curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register.
Documentation/hwmon/coretemp
浏览文件 @ 1102c660
......@@ -15,8 +15,13 @@ Author: Rudolf Marek
Description
-----------
This driver permits reading the DTS (Digital Temperature Sensor) embedded
inside Intel CPUs. This driver can read both the per-core and per-package
temperature using the appropriate sensors. The per-package sensor is new;
as of now, it is present only in the SandyBridge platform. The driver will
show the temperature of all cores inside a package under a single device
directory inside hwmon.
This driver permits reading temperature sensor embedded inside Intel Core CPU.
Temperature is measured in degrees Celsius and measurement resolution is
1 degree C. Valid temperatures are from 0 to TjMax degrees C, because
the actual value of temperature register is in fact a delta from TjMax.
......@@ -27,13 +32,15 @@ mechanism will perform actions to forcibly cool down the processor. Alarm
may be raised, if the temperature grows enough (more than TjMax) to trigger
the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
temp1_input - Core temperature (in millidegrees Celsius).
temp1_max - All cooling devices should be turned on (on Core2).
temp1_crit - Maximum junction temperature (in millidegrees Celsius).
temp1_crit_alarm - Set when Out-of-spec bit is set, never clears.
All Sysfs entries are named with their core_id (represented here by 'X').
tempX_input - Core temperature (in millidegrees Celsius).
tempX_max - All cooling devices should be turned on (on Core2).
tempX_crit - Maximum junction temperature (in millidegrees Celsius).
tempX_crit_alarm - Set when Out-of-spec bit is set, never clears.
Correct CPU operation is no longer guaranteed.
temp1_label - Contains string "Core X", where X is processor
number.
tempX_label - Contains string "Core X", where X is processor
number. For Package temp, this will be "Physical id Y",
where Y is the package number.
The TjMax temperature is set to 85 degrees C if undocumented model specific
register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
......
Documentation/hwmon/emc6w201 0 → 100644
浏览文件 @ 1102c660
Kernel driver emc6w201
======================
Supported chips:
* SMSC EMC6W201
Prefix: 'emc6w201'
Addresses scanned: I2C 0x2c, 0x2d, 0x2e
Datasheet: Not public
Author: Jean Delvare <khali@linux-fr.org>
Description
-----------
From the datasheet:
"The EMC6W201 is an environmental monitoring device with automatic fan
control capability and enhanced system acoustics for noise suppression.
This ACPI compliant device provides hardware monitoring for up to six
voltages (including its own VCC) and five external thermal sensors,
measures the speed of up to five fans, and controls the speed of
multiple DC fans using three Pulse Width Modulator (PWM) outputs. Note
that it is possible to control more than three fans by connecting two
fans to one PWM output. The EMC6W201 will be available in a 36-pin
QFN package."
The device is functionally close to the EMC6D100 series, but is
register-incompatible.
The driver currently only supports the monitoring of the voltages,
temperatures and fan speeds. Limits can be changed. Alarms are not
supported, and neither is fan speed control.
Known Systems With EMC6W201
---------------------------
The EMC6W201 is a rare device, only found on a few systems, made in
2005 and 2006. Known systems with this device:
* Dell Precision 670 workstation
* Gigabyte 2CEWH mainboard
Documentation/hwmon/f71882fg
浏览文件 @ 1102c660
......@@ -6,6 +6,10 @@ Supported chips:
Prefix: 'f71808e'
Addresses scanned: none, address read from Super I/O config space
Datasheet: Not public
* Fintek F71808A
Prefix: 'f71808a'
Addresses scanned: none, address read from Super I/O config space
Datasheet: Not public
* Fintek F71858FG
Prefix: 'f71858fg'
Addresses scanned: none, address read from Super I/O config space
......
Documentation/hwmon/fam15h_power 0 → 100644
浏览文件 @ 1102c660
Kernel driver fam15h_power
==========================
Supported chips:
* AMD Family 15h Processors
Prefix: 'fam15h_power'
Addresses scanned: PCI space
Datasheets:
BIOS and Kernel Developer's Guide (BKDG) For AMD Family 15h Processors
(not yet published)
Author: Andreas Herrmann <andreas.herrmann3@amd.com>
Description
-----------
This driver permits reading of registers providing power information
of AMD Family 15h processors.
For AMD Family 15h processors the following power values can be
calculated using different processor northbridge function registers:
* BasePwrWatts: Specifies in watts the maximum amount of power
consumed by the processor for NB and logic external to the core.
* ProcessorPwrWatts: Specifies in watts the maximum amount of power
the processor can support.
* CurrPwrWatts: Specifies in watts the current amount of power being
consumed by the processor.
This driver provides ProcessorPwrWatts and CurrPwrWatts:
* power1_crit (ProcessorPwrWatts)
* power1_input (CurrPwrWatts)
On multi-node processors the calculated value is for the entire
package and not for a single node. Thus the driver creates sysfs
attributes only for internal node0 of a multi-node processor.
Documentation/hwmon/k10temp
浏览文件 @ 1102c660
......@@ -11,6 +11,7 @@ Supported chips:
Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra)
* AMD Family 12h processors: "Llano"
* AMD Family 14h processors: "Brazos" (C/E/G-Series)
* AMD Family 15h processors: "Bulldozer"
Prefix: 'k10temp'
Addresses scanned: PCI space
......@@ -40,7 +41,7 @@ Description
-----------
This driver permits reading of the internal temperature sensor of AMD
Family 10h/11h/12h/14h processors.
Family 10h/11h/12h/14h/15h processors.
All these processors have a sensor, but on those for Socket F or AM2+,
the sensor may return inconsistent values (erratum 319). The driver
......
Documentation/hwmon/max16065 0 → 100644
浏览文件 @ 1102c660
Kernel driver max16065
======================
Supported chips:
* Maxim MAX16065, MAX16066
Prefixes: 'max16065', 'max16066'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16065-MAX16066.pdf
* Maxim MAX16067
Prefix: 'max16067'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16067.pdf
* Maxim MAX16068
Prefix: 'max16068'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16068.pdf
* Maxim MAX16070/MAX16071
Prefixes: 'max16070', 'max16071'
Addresses scanned: -
Datasheet:
http://datasheets.maxim-ic.com/en/ds/MAX16070-MAX16071.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
[From datasheets] The MAX16065/MAX16066 flash-configurable system managers
monitor and sequence multiple system voltages. The MAX16065/MAX16066 can also
accurately monitor (+/-2.5%) one current channel using a dedicated high-side
current-sense amplifier. The MAX16065 manages up to twelve system voltages
simultaneously, and the MAX16066 manages up to eight supply voltages.
The MAX16067 flash-configurable system manager monitors and sequences multiple
system voltages. The MAX16067 manages up to six system voltages simultaneously.
The MAX16068 flash-configurable system manager monitors and manages up to six
system voltages simultaneously.
The MAX16070/MAX16071 flash-configurable system monitors supervise multiple
system voltages. The MAX16070/MAX16071 can also accurately monitor (+/-2.5%)
one current channel using a dedicated high-side current-sense amplifier. The
MAX16070 monitors up to twelve system voltages simultaneously, and the MAX16071
monitors up to eight supply voltages.
Each monitored channel has its own low and high critical limits. MAX16065,
MAX16066, MAX16070, and MAX16071 support an additional limit which is
configurable as either low or high secondary limit. MAX16065, MAX16066,
MAX16070, and MAX16071 also support supply current monitoring.
Usage Notes
-----------
This driver does not probe for devices, since there is no register which
can be safely used to identify the chip. You will have to instantiate
the devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Sysfs entries
-------------
in[0-11]_input Input voltage measurements.
in12_input Voltage on CSP (Current Sense Positive) pin.
Only if the chip supports current sensing and if
current sensing is enabled.
in[0-11]_min Low warning limit.
Supported on MAX16065, MAX16066, MAX16070, and MAX16071
only.
in[0-11]_max High warning limit.
Supported on MAX16065, MAX16066, MAX16070, and MAX16071
only.
Either low or high warning limits are supported
(depending on chip configuration), but not both.
in[0-11]_lcrit Low critical limit.
in[0-11]_crit High critical limit.
in[0-11]_alarm Input voltage alarm.
curr1_input Current sense input; only if the chip supports current
sensing and if current sensing is enabled.
Displayed current assumes 0.001 Ohm current sense
resistor.
curr1_alarm Overcurrent alarm; only if the chip supports current
sensing and if current sensing is enabled.
Documentation/hwmon/max6642 0 → 100644
浏览文件 @ 1102c660
Kernel driver max6642
=====================
Supported chips:
* Maxim MAX6642
Prefix: 'max6642'
Addresses scanned: I2C 0x48-0x4f
Datasheet: Publicly available at the Maxim website
http://datasheets.maxim-ic.com/en/ds/MAX6642.pdf
Authors:
Per Dalen <per.dalen@appeartv.com>
Description
-----------
The MAX6642 is a digital temperature sensor. It senses its own temperature as
well as the temperature on one external diode.
All temperature values are given in degrees Celsius. Resolution
is 0.25 degree for the local temperature and for the remote temperature.
Documentation/hwmon/max6650
浏览文件 @ 1102c660
......@@ -2,9 +2,13 @@ Kernel driver max6650
=====================
Supported chips:
* Maxim 6650 / 6651
* Maxim MAX6650
Prefix: 'max6650'
Addresses scanned: I2C 0x1b, 0x1f, 0x48, 0x4b
Addresses scanned: none
Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
* Maxim MAX6651
Prefix: 'max6651'
Addresses scanned: none
Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6650-MAX6651.pdf
Authors:
......@@ -15,10 +19,10 @@ Authors:
Description
-----------
This driver implements support for the Maxim 6650/6651
This driver implements support for the Maxim MAX6650 and MAX6651.
The 2 devices are very similar, but the Maxim 6550 has a reduced feature
set, e.g. only one fan-input, instead of 4 for the 6651.
The 2 devices are very similar, but the MAX6550 has a reduced feature
set, e.g. only one fan-input, instead of 4 for the MAX6651.
The driver is not able to distinguish between the 2 devices.
......@@ -36,6 +40,13 @@ fan1_div rw sets the speed range the inputs can handle. Legal
values are 1, 2, 4, and 8. Use lower values for
faster fans.
Usage notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Module parameters
-----------------
......
Documentation/hwmon/pkgtemp 已删除 100644 → 0
浏览文件 @ 6e9101ae
Kernel driver pkgtemp
======================
Supported chips:
* Intel family
Prefix: 'pkgtemp'
CPUID:
Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
Volume 3A: System Programming Guide
Author: Fenghua Yu
Description
-----------
This driver permits reading package level temperature sensor embedded inside
Intel CPU package. The sensors can be in core, uncore, memory controller, or
other components in a package. The feature is first implemented in Intel Sandy
Bridge platform.
Temperature is measured in degrees Celsius and measurement resolution is
1 degree C. Valid temperatures are from 0 to TjMax degrees C, because the actual
value of temperature register is in fact a delta from TjMax.
Temperature known as TjMax is the maximum junction temperature of package.
We get this from MSR_IA32_TEMPERATURE_TARGET. If the MSR is not accessible,
we define TjMax as 100 degrees Celsius. At this temperature, protection
mechanism will perform actions to forcibly cool down the package. Alarm
may be raised, if the temperature grows enough (more than TjMax) to trigger
the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
temp1_input - Package temperature (in millidegrees Celsius).
temp1_max - All cooling devices should be turned on.
temp1_crit - Maximum junction temperature (in millidegrees Celsius).
temp1_crit_alarm - Set when Out-of-spec bit is set, never clears.
Correct CPU operation is no longer guaranteed.
Documentation/hwmon/sht15 0 → 100644
浏览文件 @ 1102c660
Kernel driver sht15
===================
Authors:
* Wouter Horre
* Jonathan Cameron
* Vivien Didelot <vivien.didelot@savoirfairelinux.com>
* Jerome Oufella <jerome.oufella@savoirfairelinux.com>
Supported chips:
* Sensirion SHT10
Prefix: 'sht10'
* Sensirion SHT11
Prefix: 'sht11'
* Sensirion SHT15
Prefix: 'sht15'
* Sensirion SHT71
Prefix: 'sht71'
* Sensirion SHT75
Prefix: 'sht75'
Datasheet: Publicly available at the Sensirion website
http://www.sensirion.ch/en/pdf/product_information/Datasheet-humidity-sensor-SHT1x.pdf
Description
-----------
The SHT10, SHT11, SHT15, SHT71, and SHT75 are humidity and temperature
sensors.
The devices communicate using two GPIO lines.
Supported resolutions for the measurements are 14 bits for temperature and 12
bits for humidity, or 12 bits for temperature and 8 bits for humidity.
The humidity calibration coefficients are programmed into an OTP memory on the
chip. These coefficients are used to internally calibrate the signals from the
sensors. Disabling the reload of those coefficients allows saving 10ms for each
measurement and decrease power consumption, while loosing on precision.
Some options may be set directly in the sht15_platform_data structure
or via sysfs attributes.
Notes:
* The regulator supply name is set to "vcc".
* If a CRC validation fails, a soft reset command is sent, which resets
status register to its hardware default value, but the driver will try to
restore the previous device configuration.
Platform data
-------------
* checksum:
set it to true to enable CRC validation of the readings (default to false).
* no_otp_reload:
flag to indicate not to reload from OTP (default to false).
* low_resolution:
flag to indicate the temp/humidity resolution to use (default to false).
Sysfs interface
---------------
* temp1_input: temperature input
* humidity1_input: humidity input
* heater_enable: write 1 in this attribute to enable the on-chip heater,
0 to disable it. Be careful not to enable the heater
for too long.
* temp1_fault: if 1, this means that the voltage is low (below 2.47V) and
measurement may be invalid.
* humidity1_fault: same as temp1_fault.
Documentation/hwmon/ucd9000 0 → 100644
浏览文件 @ 1102c660
Kernel driver ucd9000
=====================
Supported chips:
* TI UCD90120, UCD90124, UCD9090, and UCD90910
Prefixes: 'ucd90120', 'ucd90124', 'ucd9090', 'ucd90910'
Addresses scanned: -
Datasheets:
http://focus.ti.com/lit/ds/symlink/ucd90120.pdf
http://focus.ti.com/lit/ds/symlink/ucd90124.pdf
http://focus.ti.com/lit/ds/symlink/ucd9090.pdf
http://focus.ti.com/lit/ds/symlink/ucd90910.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
From datasheets:
The UCD90120 Power Supply Sequencer and System Health Monitor monitors and
sequences up to 12 independent voltage rails. The device integrates a 12-bit
ADC with a 2.5V internal reference for monitoring up to 13 power supply voltage,
current, or temperature inputs.
The UCD90124 is a 12-rail PMBus/I2C addressable power-supply sequencer and
system-health monitor. The device integrates a 12-bit ADC for monitoring up to
13 power-supply voltage, current, or temperature inputs. Twenty-six GPIO pins
can be used for power supply enables, power-on reset signals, external
interrupts, cascading, or other system functions. Twelve of these pins offer PWM
functionality. Using these pins, the UCD90124 offers support for fan control,
margining, and general-purpose PWM functions.
The UCD9090 is a 10-rail PMBus/I2C addressable power-supply sequencer and
monitor. The device integrates a 12-bit ADC for monitoring up to 10 power-supply
voltage inputs. Twenty-three GPIO pins can be used for power supply enables,
power-on reset signals, external interrupts, cascading, or other system
functions. Ten of these pins offer PWM functionality. Using these pins, the
UCD9090 offers support for margining, and general-purpose PWM functions.
The UCD90910 is a ten-rail I2C / PMBus addressable power-supply sequencer and
system-health monitor. The device integrates a 12-bit ADC for monitoring up to
13 power-supply voltage, current, or temperature inputs.
This driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data. Please see
Documentation/hwmon/pmbus for details.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in[1-12]_label "vout[1-12]".
in[1-12]_input Measured voltage. From READ_VOUT register.
in[1-12]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in[1-12]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[1-12]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in[1-12]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in[1-12]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[1-12]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in[1-12]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in[1-12]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
curr[1-12]_label "iout[1-12]".
curr[1-12]_input Measured current. From READ_IOUT register.
curr[1-12]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr[1-12]_lcrit Critical minumum output current. From IOUT_UC_FAULT_LIMIT
register.
curr[1-12]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[1-12]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[1-12]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
For each attribute index, either voltage or current is
reported, but not both. If voltage or current is
reported depends on the chip configuration.
temp[1-2]_input Measured temperatures. From READ_TEMPERATURE_1 and
READ_TEMPERATURE_2 registers.
temp[1-2]_max Maximum temperature. From OT_WARN_LIMIT register.
temp[1-2]_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp[1-2]_max_alarm Temperature high alarm.
temp[1-2]_crit_alarm Temperature critical high alarm.
fan[1-4]_input Fan RPM.
fan[1-4]_alarm Fan alarm.
fan[1-4]_fault Fan fault.
Fan attributes are only available on chips supporting
fan control (UCD90124, UCD90910). Attribute files are
created only for enabled fans.
Note that even though UCD90910 supports up to 10 fans,
only up to four fans are currently supported.
Documentation/hwmon/ucd9200 0 → 100644
浏览文件 @ 1102c660
Kernel driver ucd9200
=====================
Supported chips:
* TI UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and UCD9248
Prefixes: 'ucd9220', 'ucd9222', 'ucd9224', 'ucd9240', 'ucd9244', 'ucd9246',
'ucd9248'
Addresses scanned: -
Datasheets:
http://focus.ti.com/lit/ds/symlink/ucd9220.pdf
http://focus.ti.com/lit/ds/symlink/ucd9222.pdf
http://focus.ti.com/lit/ds/symlink/ucd9224.pdf
http://focus.ti.com/lit/ds/symlink/ucd9240.pdf
http://focus.ti.com/lit/ds/symlink/ucd9244.pdf
http://focus.ti.com/lit/ds/symlink/ucd9246.pdf
http://focus.ti.com/lit/ds/symlink/ucd9248.pdf
Author: Guenter Roeck <guenter.roeck@ericsson.com>
Description
-----------
[From datasheets] UCD9220, UCD9222, UCD9224, UCD9240, UCD9244, UCD9246, and
UCD9248 are multi-rail, multi-phase synchronous buck digital PWM controllers
designed for non-isolated DC/DC power applications. The devices integrate
dedicated circuitry for DC/DC loop management with flash memory and a serial
interface to support configuration, monitoring and management.
This driver is a client driver to the core PMBus driver. Please see
Documentation/hwmon/pmbus for details on PMBus client drivers.
Usage Notes
-----------
This driver does not auto-detect devices. You will have to instantiate the
devices explicitly. Please see Documentation/i2c/instantiating-devices for
details.
Platform data support
---------------------
The driver supports standard PMBus driver platform data. Please see
Documentation/hwmon/pmbus for details.
Sysfs entries
-------------
The following attributes are supported. Limits are read-write; all other
attributes are read-only.
in1_label "vin".
in1_input Measured voltage. From READ_VIN register.
in1_min Minumum Voltage. From VIN_UV_WARN_LIMIT register.
in1_max Maximum voltage. From VIN_OV_WARN_LIMIT register.
in1_lcrit Critical minumum Voltage. VIN_UV_FAULT_LIMIT register.
in1_crit Critical maximum voltage. From VIN_OV_FAULT_LIMIT register.
in1_min_alarm Voltage low alarm. From VIN_UV_WARNING status.
in1_max_alarm Voltage high alarm. From VIN_OV_WARNING status.
in1_lcrit_alarm Voltage critical low alarm. From VIN_UV_FAULT status.
in1_crit_alarm Voltage critical high alarm. From VIN_OV_FAULT status.
in[2-5]_label "vout[1-4]".
in[2-5]_input Measured voltage. From READ_VOUT register.
in[2-5]_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register.
in[2-5]_max Maximum voltage. From VOUT_OV_WARN_LIMIT register.
in[2-5]_lcrit Critical minumum Voltage. VOUT_UV_FAULT_LIMIT register.
in[2-5]_crit Critical maximum voltage. From VOUT_OV_FAULT_LIMIT register.
in[2-5]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status.
in[2-5]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status.
in[2-5]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status.
in[2-5]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status.
curr1_label "iin".
curr1_input Measured current. From READ_IIN register.
curr[2-5]_label "iout[1-4]".
curr[2-5]_input Measured current. From READ_IOUT register.
curr[2-5]_max Maximum current. From IOUT_OC_WARN_LIMIT register.
curr[2-5]_lcrit Critical minumum output current. From IOUT_UC_FAULT_LIMIT
register.
curr[2-5]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register.
curr[2-5]_max_alarm Current high alarm. From IOUT_OC_WARNING status.
curr[2-5]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status.
power1_input Measured input power. From READ_PIN register.
power1_label "pin"
power[2-5]_input Measured output power. From READ_POUT register.
power[2-5]_label "pout[1-4]"
The number of output voltage, current, and power
attribute sets is determined by the number of enabled
rails. See chip datasheets for details.
temp[1-5]_input Measured temperatures. From READ_TEMPERATURE_1 and
READ_TEMPERATURE_2 registers.
temp1 is the chip internal temperature. temp[2-5] are
rail temperatures. temp[2-5] attributes are only
created for enabled rails. See chip datasheets for
details.
temp[1-5]_max Maximum temperature. From OT_WARN_LIMIT register.
temp[1-5]_crit Critical high temperature. From OT_FAULT_LIMIT register.
temp[1-5]_max_alarm Temperature high alarm.
temp[1-5]_crit_alarm Temperature critical high alarm.
fan1_input Fan RPM. ucd9240 only.
fan1_alarm Fan alarm. ucd9240 only.
fan1_fault Fan fault. ucd9240 only.
Documentation/i2c/busses/i2c-i801
浏览文件 @ 1102c660
......@@ -19,6 +19,7 @@ Supported adapters:
* Intel 6 Series (PCH)
* Intel Patsburg (PCH)
* Intel DH89xxCC (PCH)
* Intel Panther Point (PCH)
Datasheets: Publicly available at the Intel website
On Intel Patsburg and later chipsets, both the normal host SMBus controller
......
Documentation/i2c/writing-clients
浏览文件 @ 1102c660
......@@ -38,7 +38,7 @@ static struct i2c_driver foo_driver = {
.name = "foo",
},
.id_table = foo_ids,
.id_table = foo_idtable,
.probe = foo_probe,
.remove = foo_remove,
/* if device autodetection is needed: */
......
Documentation/input/elantech.txt
浏览文件 @ 1102c660
......@@ -34,7 +34,8 @@ Contents
Currently the Linux Elantech touchpad driver is aware of two different
hardware versions unimaginatively called version 1 and version 2. Version 1
is found in "older" laptops and uses 4 bytes per packet. Version 2 seems to
be introduced with the EeePC and uses 6 bytes per packet.
be introduced with the EeePC and uses 6 bytes per packet, and provides
additional features such as position of two fingers, and width of the touch.
The driver tries to support both hardware versions and should be compatible
with the Xorg Synaptics touchpad driver and its graphical configuration
......@@ -94,18 +95,44 @@ Currently the Linux Elantech touchpad driver provides two extra knobs under
can check these bits and reject any packet that appears corrupted. Using
this knob you can bypass that check.
It is not known yet whether hardware version 2 provides the same parity
bits. Hence checking is disabled by default. Currently even turning it on
will do nothing.
Hardware version 2 does not provide the same parity bits. Only some basic
data consistency checking can be done. For now checking is disabled by
default. Currently even turning it on will do nothing.
/////////////////////////////////////////////////////////////////////////////
3. Differentiating hardware versions
=================================
To detect the hardware version, read the version number as param[0].param[1].param[2]
4 bytes version: (after the arrow is the name given in the Dell-provided driver)
02.00.22 => EF013
02.06.00 => EF019
In the wild, there appear to be more versions, such as 00.01.64, 01.00.21,
02.00.00, 02.00.04, 02.00.06.
6 bytes:
02.00.30 => EF113
02.08.00 => EF023
02.08.XX => EF123
02.0B.00 => EF215
04.01.XX => Scroll_EF051
04.02.XX => EF051
In the wild, there appear to be more versions, such as 04.03.01, 04.04.11. There
appears to be almost no difference, except for EF113, which does not report
pressure/width and has different data consistency checks.
Probably all the versions with param[0] <= 01 can be considered as
4 bytes/firmware 1. The versions < 02.08.00, with the exception of 02.00.30, as
4 bytes/firmware 2. Everything >= 02.08.00 can be considered as 6 bytes.
/////////////////////////////////////////////////////////////////////////////
3. Hardware version 1
4. Hardware version 1
==================
3.1 Registers
4.1 Registers
~~~~~~~~~
By echoing a hexadecimal value to a register it contents can be altered.
......@@ -168,7 +195,7 @@ For example:
smart edge activation area width?
3.2 Native relative mode 4 byte packet format
4.2 Native relative mode 4 byte packet format
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
byte 0:
......@@ -226,9 +253,13 @@ byte 3:
positive = down
3.3 Native absolute mode 4 byte packet format
4.3 Native absolute mode 4 byte packet format
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
EF013 and EF019 have a special behaviour (due to a bug in the firmware?), and
when 1 finger is touching, the first 2 position reports must be discarded.
This counting is reset whenever a different number of fingers is reported.
byte 0:
firmware version 1.x:
......@@ -279,11 +310,11 @@ byte 3:
/////////////////////////////////////////////////////////////////////////////
4. Hardware version 2
5. Hardware version 2
==================
4.1 Registers
5.1 Registers
~~~~~~~~~
By echoing a hexadecimal value to a register it contents can be altered.
......@@ -316,16 +347,41 @@ For example:
0x7f = never i.e. tap again to release)
4.2 Native absolute mode 6 byte packet format
5.2 Native absolute mode 6 byte packet format
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4.2.1 One finger touch
5.2.1 Parity checking and packet re-synchronization
There is no parity checking, however some consistency checks can be performed.
For instance for EF113:
SA1= packet[0];
A1 = packet[1];
B1 = packet[2];
SB1= packet[3];
C1 = packet[4];
D1 = packet[5];
if( (((SA1 & 0x3C) != 0x3C) && ((SA1 & 0xC0) != 0x80)) || // check Byte 1
(((SA1 & 0x0C) != 0x0C) && ((SA1 & 0xC0) == 0x80)) || // check Byte 1 (one finger pressed)
(((SA1 & 0xC0) != 0x80) && (( A1 & 0xF0) != 0x00)) || // check Byte 2
(((SB1 & 0x3E) != 0x38) && ((SA1 & 0xC0) != 0x80)) || // check Byte 4
(((SB1 & 0x0E) != 0x08) && ((SA1 & 0xC0) == 0x80)) || // check Byte 4 (one finger pressed)
(((SA1 & 0xC0) != 0x80) && (( C1 & 0xF0) != 0x00)) ) // check Byte 5
// error detected
For all the other ones, there are just a few constant bits:
if( ((packet[0] & 0x0C) != 0x04) ||
((packet[3] & 0x0f) != 0x02) )
// error detected
In case an error is detected, all the packets are shifted by one (and packet[0] is discarded).
5.2.1 One/Three finger touch
~~~~~~~~~~~~~~~~
byte 0:
bit 7 6 5 4 3 2 1 0
n1 n0 . . . . R L
n1 n0 w3 w2 . . R L
L, R = 1 when Left, Right mouse button pressed
n1..n0 = numbers of fingers on touchpad
......@@ -333,24 +389,40 @@ byte 0:
byte 1:
bit 7 6 5 4 3 2 1 0
. . . . . x10 x9 x8
p7 p6 p5 p4 . x10 x9 x8
byte 2:
bit 7 6 5 4 3 2 1 0
x7 x6 x5 x4 x4 x2 x1 x0
x7 x6 x5 x4 x3 x2 x1 x0
x10..x0 = absolute x value (horizontal)
byte 3:
bit 7 6 5 4 3 2 1 0
. . . . . . . .
n4 vf w1 w0 . . . b2
n4 = set if more than 3 fingers (only in 3 fingers mode)
vf = a kind of flag ? (only on EF123, 0 when finger is over one
of the buttons, 1 otherwise)
w3..w0 = width of the finger touch (not EF113)
b2 (on EF113 only, 0 otherwise), b2.R.L indicates one button pressed:
0 = none
1 = Left
2 = Right
3 = Middle (Left and Right)
4 = Forward
5 = Back
6 = Another one
7 = Another one
byte 4:
bit 7 6 5 4 3 2 1 0
. . . . . . y9 y8
p3 p1 p2 p0 . . y9 y8
p7..p0 = pressure (not EF113)
byte 5:
......@@ -363,6 +435,11 @@ byte 5:
4.2.2 Two finger touch
~~~~~~~~~~~~~~~~
Note that the two pairs of coordinates are not exactly the coordinates of the
two fingers, but only the pair of the lower-left and upper-right coordinates.
So the actual fingers might be situated on the other diagonal of the square
defined by these two points.
byte 0:
bit 7 6 5 4 3 2 1 0
......@@ -376,14 +453,14 @@ byte 1:
bit 7 6 5 4 3 2 1 0
ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0
ax8..ax0 = first finger absolute x value
ax8..ax0 = lower-left finger absolute x value
byte 2:
bit 7 6 5 4 3 2 1 0
ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0
ay8..ay0 = first finger absolute y value
ay8..ay0 = lower-left finger absolute y value
byte 3:
......@@ -395,11 +472,11 @@ byte 4:
bit 7 6 5 4 3 2 1 0
bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0
bx8..bx0 = second finger absolute x value
bx8..bx0 = upper-right finger absolute x value
byte 5:
bit 7 6 5 4 3 2 1 0
by7 by8 by5 by4 by3 by2 by1 by0
by8..by0 = second finger absolute y value
by8..by0 = upper-right finger absolute y value
Documentation/input/rotary-encoder.txt
浏览文件 @ 1102c660
......@@ -9,6 +9,9 @@ peripherals with two wires. The outputs are phase-shifted by 90 degrees
and by triggering on falling and rising edges, the turn direction can
be determined.
Some encoders have both outputs low in stable states, whereas others also have
a stable state with both outputs high (half-period mode).
The phase diagram of these two outputs look like this:
_____ _____ _____
......@@ -26,6 +29,8 @@ The phase diagram of these two outputs look like this:
|<-------->|
one step
|<-->|
one step (half-period mode)
For more information, please see
http://en.wikipedia.org/wiki/Rotary_encoder
......@@ -34,6 +39,13 @@ For more information, please see
1. Events / state machine
-------------------------
In half-period mode, state a) and c) above are used to determine the
rotational direction based on the last stable state. Events are reported in
states b) and d) given that the new stable state is different from the last
(i.e. the rotation was not reversed half-way).
Otherwise, the following apply:
a) Rising edge on channel A, channel B in low state
This state is used to recognize a clockwise turn
......@@ -96,6 +108,7 @@ static struct rotary_encoder_platform_data my_rotary_encoder_info = {
.gpio_b = GPIO_ROTARY_B,
.inverted_a = 0,
.inverted_b = 0,
.half_period = false,
};
static struct platform_device rotary_encoder_device = {
......
Documentation/ioctl/ioctl-number.txt
浏览文件 @ 1102c660
......@@ -166,7 +166,6 @@ Code Seq#(hex) Include File Comments
'T' all arch/x86/include/asm/ioctls.h conflict!
'T' C0-DF linux/if_tun.h conflict!
'U' all sound/asound.h conflict!
'U' 00-0F drivers/media/video/uvc/uvcvideo.h conflict!
'U' 00-CF linux/uinput.h conflict!
'U' 00-EF linux/usbdevice_fs.h
'U' C0-CF drivers/bluetooth/hci_uart.h
......@@ -259,6 +258,7 @@ Code Seq#(hex) Include File Comments
't' 80-8F linux/isdn_ppp.h
't' 90 linux/toshiba.h
'u' 00-1F linux/smb_fs.h gone
'u' 20-3F linux/uvcvideo.h USB video class host driver
'v' 00-1F linux/ext2_fs.h conflict!
'v' 00-1F linux/fs.h conflict!
'v' 00-0F linux/sonypi.h conflict!
......@@ -304,6 +304,7 @@ Code Seq#(hex) Include File Comments
0xB0 all RATIO devices in development:
<mailto:vgo@ratio.de>
0xB1 00-1F PPPoX <mailto:mostrows@styx.uwaterloo.ca>
0xB3 00 linux/mmc/ioctl.h
0xC0 00-0F linux/usb/iowarrior.h
0xCB 00-1F CBM serial IEC bus in development:
<mailto:michael.klein@puffin.lb.shuttle.de>
......
Documentation/kbuild/kbuild.txt
浏览文件 @ 1102c660
......@@ -201,3 +201,16 @@ KBUILD_ENABLE_EXTRA_GCC_CHECKS
--------------------------------------------------
If enabled over the make command line with "W=1", it turns on additional
gcc -W... options for more extensive build-time checking.
KBUILD_BUILD_TIMESTAMP
--------------------------------------------------
Setting this to a date string overrides the timestamp used in the
UTS_VERSION definition (uname -v in the running kernel). The value has to
be a string that can be passed to date -d. The default value
is the output of the date command at one point during build.
KBUILD_BUILD_USER, KBUILD_BUILD_HOST
--------------------------------------------------
These two variables allow to override the user@host string displayed during
boot and in /proc/version. The default value is the output of the commands
whoami and host, respectively.
Documentation/kbuild/kconfig-language.txt
浏览文件 @ 1102c660
......@@ -113,6 +113,13 @@ applicable everywhere (see syntax).
That will limit the usefulness but on the other hand avoid
the illegal configurations all over.
- limiting menu display: "visible if" <expr>
This attribute is only applicable to menu blocks, if the condition is
false, the menu block is not displayed to the user (the symbols
contained there can still be selected by other symbols, though). It is
similar to a conditional "prompt" attribude for individual menu
entries. Default value of "visible" is true.
- numerical ranges: "range" <symbol> <symbol> ["if" <expr>]
This allows to limit the range of possible input values for int
and hex symbols. The user can only input a value which is larger than
......@@ -303,7 +310,8 @@ menu:
"endmenu"
This defines a menu block, see "Menu structure" above for more
information. The only possible options are dependencies.
information. The only possible options are dependencies and "visible"
attributes.
if:
......@@ -381,3 +389,25 @@ config FOO
limits FOO to module (=m) or disabled (=n).
Kconfig symbol existence
~~~~~~~~~~~~~~~~~~~~~~~~
The following two methods produce the same kconfig symbol dependencies
but differ greatly in kconfig symbol existence (production) in the
generated config file.
case 1:
config FOO
tristate "about foo"
depends on BAR
vs. case 2:
if BAR
config FOO
tristate "about foo"
endif
In case 1, the symbol FOO will always exist in the config file (given
no other dependencies). In case 2, the symbol FOO will only exist in
the config file if BAR is enabled.
Documentation/kbuild/kconfig.txt
浏览文件 @ 1102c660
......@@ -48,11 +48,6 @@ KCONFIG_OVERWRITECONFIG
If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
break symlinks when .config is a symlink to somewhere else.
KCONFIG_NOTIMESTAMP
--------------------------------------------------
If this environment variable exists and is non-null, the timestamp line
in generated .config files is omitted.
______________________________________________________________________
Environment variables for '{allyes/allmod/allno/rand}config'
......
Documentation/kbuild/makefiles.txt
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......@@ -40,11 +40,13 @@ This document describes the Linux kernel Makefiles.
--- 6.6 Commands useful for building a boot image
--- 6.7 Custom kbuild commands
--- 6.8 Preprocessing linker scripts
--- 6.9 Generic header files
=== 7 Kbuild syntax for exported headers
--- 7.1 header-y
--- 7.2 objhdr-y
--- 7.3 destination-y
--- 7.4 generic-y
=== 8 Kbuild Variables
=== 9 Makefile language
......@@ -499,6 +501,18 @@ more details, with real examples.
gcc >= 3.00. For gcc < 3.00, -malign-functions=4 is used.
Note: cc-option-align uses KBUILD_CFLAGS for $(CC) options
cc-disable-warning
cc-disable-warning checks if gcc supports a given warning and returns
the commandline switch to disable it. This special function is needed,
because gcc 4.4 and later accept any unknown -Wno-* option and only
warn about it if there is another warning in the source file.
Example:
KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
In the above example, -Wno-unused-but-set-variable will be added to
KBUILD_CFLAGS only if gcc really accepts it.
cc-version
cc-version returns a numerical version of the $(CC) compiler version.
The format is <major><minor> where both are two digits. So for example
......@@ -955,6 +969,11 @@ When kbuild executes, the following steps are followed (roughly):
used when linking modules. This is often a linker script.
From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
KBUILD_ARFLAGS Options for $(AR) when creating archives
$(KBUILD_ARFLAGS) set by the top level Makefile to "D" (deterministic
mode) if this option is supported by $(AR).
--- 6.2 Add prerequisites to archprepare:
The archprepare: rule is used to list prerequisites that need to be
......@@ -1209,6 +1228,14 @@ When kbuild executes, the following steps are followed (roughly):
The kbuild infrastructure for *lds file are used in several
architecture-specific files.
--- 6.9 Generic header files
The directory include/asm-generic contains the header files
that may be shared between individual architectures.
The recommended approach how to use a generic header file is
to list the file in the Kbuild file.
See "7.4 generic-y" for further info on syntax etc.
=== 7 Kbuild syntax for exported headers
The kernel include a set of headers that is exported to userspace.
......@@ -1265,6 +1292,32 @@ See subsequent chapter for the syntax of the Kbuild file.
In the example above all exported headers in the Kbuild file
will be located in the directory "include/linux" when exported.
--- 7.4 generic-y
If an architecture uses a verbatim copy of a header from
include/asm-generic then this is listed in the file
arch/$(ARCH)/include/asm/Kbuild like this:
Example:
#arch/x86/include/asm/Kbuild
generic-y += termios.h
generic-y += rtc.h
During the prepare phase of the build a wrapper include
file is generated in the directory:
arch/$(ARCH)/include/generated/asm
When a header is exported where the architecture uses
the generic header a similar wrapper is generated as part
of the set of exported headers in the directory:
usr/include/asm
The generated wrapper will in both cases look like the following:
Example: termios.h
#include <asm-generic/termios.h>
=== 8 Kbuild Variables
......
Documentation/kernel-parameters.txt
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......@@ -1777,9 +1777,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
nosoftlockup [KNL] Disable the soft-lockup detector.
noswapaccount [KNL] Disable accounting of swap in memory resource
controller. (See Documentation/cgroups/memory.txt)
nosync [HW,M68K] Disables sync negotiation for all devices.
notsc [BUGS=X86-32] Disable Time Stamp Counter
......@@ -2585,6 +2582,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
bytes of sense data);
c = FIX_CAPACITY (decrease the reported
device capacity by one sector);
d = NO_READ_DISC_INFO (don't use
READ_DISC_INFO command);
e = NO_READ_CAPACITY_16 (don't use
READ_CAPACITY_16 command);
h = CAPACITY_HEURISTICS (decrease the
reported device capacity by one
sector if the number is odd);
......
Documentation/lockstat.txt
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......@@ -136,7 +136,7 @@ View the top contending locks:
dcache_lock: 1037 1161 0.38 45.32 774.51 6611 243371 0.15 306.48 77387.24
&inode->i_mutex: 161 286 18446744073709 62882.54 1244614.55 3653 20598 18446744073709 62318.60 1693822.74
&zone->lru_lock: 94 94 0.53 7.33 92.10 4366 32690 0.29 59.81 16350.06
&inode->i_data.i_mmap_lock: 79 79 0.40 3.77 53.03 11779 87755 0.28 116.93 29898.44
&inode->i_data.i_mmap_mutex: 79 79 0.40 3.77 53.03 11779 87755 0.28 116.93 29898.44
&q->__queue_lock: 48 50 0.52 31.62 86.31 774 13131 0.17 113.08 12277.52
&rq->rq_lock_key: 43 47 0.74 68.50 170.63 3706 33929 0.22 107.99 17460.62
&rq->rq_lock_key#2: 39 46 0.75 6.68 49.03 2979 32292 0.17 125.17 17137.63
......
Documentation/mmc/00-INDEX
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......@@ -2,3 +2,5 @@
- this file
mmc-dev-attrs.txt
- info on SD and MMC device attributes
mmc-dev-parts.txt
- info on SD and MMC device partitions
Documentation/mmc/mmc-dev-attrs.txt
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SD and MMC Block Device Attributes
==================================
These attributes are defined for the block devices associated with the
SD or MMC device.
The following attributes are read/write.
force_ro Enforce read-only access even if write protect switch is off.
SD and MMC Device Attributes
============================
......
Documentation/mmc/mmc-dev-parts.txt 0 → 100644
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SD and MMC Device Partitions
============================
Device partitions are additional logical block devices present on the
SD/MMC device.
As of this writing, MMC boot partitions as supported and exposed as
/dev/mmcblkXboot0 and /dev/mmcblkXboot1, where X is the index of the
parent /dev/mmcblkX.
MMC Boot Partitions
===================
Read and write access is provided to the two MMC boot partitions. Due to
the sensitive nature of the boot partition contents, which often store
a bootloader or bootloader configuration tables crucial to booting the
platform, write access is disabled by default to reduce the chance of
accidental bricking.
To enable write access to /dev/mmcblkXbootY, disable the forced read-only
access with:
echo 0 > /sys/block/mmcblkXbootY/force_ro
To re-enable read-only access:
echo 1 > /sys/block/mmcblkXbootY/force_ro
Documentation/networking/batman-adv.txt
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[state: 27-01-2011]
[state: 17-04-2011]
BATMAN-ADV
----------
......@@ -19,6 +19,7 @@ duce the overhead to a minimum. It does not depend on any (other)
network driver, and can be used on wifi as well as ethernet lan,
vpn, etc ... (anything with ethernet-style layer 2).
CONFIGURATION
-------------
......@@ -160,13 +161,13 @@ face. Each entry can/has to have the following values:
-> "TQ mac value" - src mac's link quality towards mac address
of a neighbor originator's interface which
is being used for routing
-> "HNA mac" - HNA announced by source mac
-> "TT mac" - TT announced by source mac
-> "PRIMARY" - this is a primary interface
-> "SEC mac" - secondary mac address of source
(requires preceding PRIMARY)
The TQ value has a range from 4 to 255 with 255 being the best.
The HNA entries are showing which hosts are connected to the mesh
The TT entries are showing which hosts are connected to the mesh
via bat0 or being bridged into the mesh network. The PRIMARY/SEC
values are only applied on primary interfaces
......@@ -199,7 +200,7 @@ abled during run time. Following log_levels are defined:
0 - All debug output disabled
1 - Enable messages related to routing / flooding / broadcasting
2 - Enable route or hna added / changed / deleted
2 - Enable route or tt entry added / changed / deleted
3 - Enable all messages
The debug output can be changed at runtime using the file
......@@ -207,7 +208,7 @@ The debug output can be changed at runtime using the file
# echo 2 > /sys/class/net/bat0/mesh/log_level
will enable debug messages for when routes or HNAs change.
will enable debug messages for when routes or TTs change.
BATCTL
......
Documentation/networking/bonding.txt
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Linux Ethernet Bonding Driver HOWTO
Latest update: 23 September 2009
Latest update: 27 April 2011
Initial release : Thomas Davis <tadavis at lbl.gov>
Corrections, HA extensions : 2000/10/03-15 :
......@@ -585,25 +585,23 @@ mode
chosen.
num_grat_arp
Specifies the number of gratuitous ARPs to be issued after a
failover event. One gratuitous ARP is issued immediately after
the failover, subsequent ARPs are sent at a rate of one per link
monitor interval (arp_interval or miimon, whichever is active).
The valid range is 0 - 255; the default value is 1. This option
affects only the active-backup mode. This option was added for
bonding version 3.3.0.
num_unsol_na
Specifies the number of unsolicited IPv6 Neighbor Advertisements
to be issued after a failover event. One unsolicited NA is issued
immediately after the failover.
Specify the number of peer notifications (gratuitous ARPs and
unsolicited IPv6 Neighbor Advertisements) to be issued after a
failover event. As soon as the link is up on the new slave
(possibly immediately) a peer notification is sent on the
bonding device and each VLAN sub-device. This is repeated at
each link monitor interval (arp_interval or miimon, whichever
is active) if the number is greater than 1.
The valid range is 0 - 255; the default value is 1. This option
affects only the active-backup mode. This option was added for
bonding version 3.4.0.
The valid range is 0 - 255; the default value is 1. These options
affect only the active-backup mode. These options were added for
bonding versions 3.3.0 and 3.4.0 respectively.
From Linux 2.6.40 and bonding version 3.7.1, these notifications
are generated by the ipv4 and ipv6 code and the numbers of
repetitions cannot be set independently.
primary
......@@ -772,8 +770,17 @@ resend_igmp
a failover event. One membership report is issued immediately after
the failover, subsequent packets are sent in each 200ms interval.
The valid range is 0 - 255; the default value is 1. This option
was added for bonding version 3.7.0.
The valid range is 0 - 255; the default value is 1. A value of 0
prevents the IGMP membership report from being issued in response
to the failover event.
This option is useful for bonding modes balance-rr (0), active-backup
(1), balance-tlb (5) and balance-alb (6), in which a failover can
switch the IGMP traffic from one slave to another. Therefore a fresh
IGMP report must be issued to cause the switch to forward the incoming
IGMP traffic over the newly selected slave.
This option was added for bonding version 3.7.0.
3. Configuring Bonding Devices
==============================
......
Documentation/networking/igb.txt
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......@@ -93,6 +93,19 @@ Additional Configurations
REQUIREMENTS: MSI-X support is required for Multiqueue. If MSI-X is not
found, the system will fallback to MSI or to Legacy interrupts.
MAC and VLAN anti-spoofing feature
----------------------------------
When a malicious driver attempts to send a spoofed packet, it is dropped by
the hardware and not transmitted. An interrupt is sent to the PF driver
notifying it of the spoof attempt.
When a spoofed packet is detected the PF driver will send the following
message to the system log (displayed by the "dmesg" command):
Spoof event(s) detected on VF(n)
Where n=the VF that attempted to do the spoofing.
Support
=======
......
Documentation/pti/pti_intel_mid.txt 0 → 100644
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The Intel MID PTI project is HW implemented in Intel Atom
system-on-a-chip designs based on the Parallel Trace
Interface for MIPI P1149.7 cJTAG standard. The kernel solution
for this platform involves the following files:
./include/linux/pti.h
./drivers/.../n_tracesink.h
./drivers/.../n_tracerouter.c
./drivers/.../n_tracesink.c
./drivers/.../pti.c
pti.c is the driver that enables various debugging features
popular on platforms from certain mobile manufacturers.
n_tracerouter.c and n_tracesink.c allow extra system information to
be collected and routed to the pti driver, such as trace
debugging data from a modem. Although n_tracerouter
and n_tracesink are a part of the complete PTI solution,
these two line disciplines can work separately from
pti.c and route any data stream from one /dev/tty node
to another /dev/tty node via kernel-space. This provides
a stable, reliable connection that will not break unless
the user-space application shuts down (plus avoids
kernel->user->kernel context switch overheads of routing
data).
An example debugging usage for this driver system:
*Hook /dev/ttyPTI0 to syslogd. Opening this port will also start
a console device to further capture debugging messages to PTI.
*Hook /dev/ttyPTI1 to modem debugging data to write to PTI HW.
This is where n_tracerouter and n_tracesink are used.
*Hook /dev/pti to a user-level debugging application for writing
to PTI HW.
*Use mipi_* Kernel Driver API in other device drivers for
debugging to PTI by first requesting a PTI write address via
mipi_request_masterchannel(1).
Below is example pseudo-code on how a 'privileged' application
can hook up n_tracerouter and n_tracesink to any tty on
a system. 'Privileged' means the application has enough
privileges to successfully manipulate the ldisc drivers
but is not just blindly executing as 'root'. Keep in mind
the use of ioctl(,TIOCSETD,) is not specific to the n_tracerouter
and n_tracesink line discpline drivers but is a generic
operation for a program to use a line discpline driver
on a tty port other than the default n_tty.
/////////// To hook up n_tracerouter and n_tracesink /////////
// Note that n_tracerouter depends on n_tracesink.
#include <errno.h>
#define ONE_TTY "/dev/ttyOne"
#define TWO_TTY "/dev/ttyTwo"
// needed global to hand onto ldisc connection
static int g_fd_source = -1;
static int g_fd_sink = -1;
// these two vars used to grab LDISC values from loaded ldisc drivers
// in OS. Look at /proc/tty/ldiscs to get the right numbers from
// the ldiscs loaded in the system.
int source_ldisc_num, sink_ldisc_num = -1;
int retval;
g_fd_source = open(ONE_TTY, O_RDWR); // must be R/W
g_fd_sink = open(TWO_TTY, O_RDWR); // must be R/W
if (g_fd_source <= 0) || (g_fd_sink <= 0) {
// doubt you'll want to use these exact error lines of code
printf("Error on open(). errno: %d\n",errno);
return errno;
}
retval = ioctl(g_fd_sink, TIOCSETD, &sink_ldisc_num);
if (retval < 0) {
printf("Error on ioctl(). errno: %d\n", errno);
return errno;
}
retval = ioctl(g_fd_source, TIOCSETD, &source_ldisc_num);
if (retval < 0) {
printf("Error on ioctl(). errno: %d\n", errno);
return errno;
}
/////////// To disconnect n_tracerouter and n_tracesink ////////
// First make sure data through the ldiscs has stopped.
// Second, disconnect ldiscs. This provides a
// little cleaner shutdown on tty stack.
sink_ldisc_num = 0;
source_ldisc_num = 0;
ioctl(g_fd_uart, TIOCSETD, &sink_ldisc_num);
ioctl(g_fd_gadget, TIOCSETD, &source_ldisc_num);
// Three, program closes connection, and cleanup:
close(g_fd_uart);
close(g_fd_gadget);
g_fd_uart = g_fd_gadget = NULL;
Documentation/ptp/ptp.txt 0 → 100644
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* PTP hardware clock infrastructure for Linux
This patch set introduces support for IEEE 1588 PTP clocks in
Linux. Together with the SO_TIMESTAMPING socket options, this
presents a standardized method for developing PTP user space
programs, synchronizing Linux with external clocks, and using the
ancillary features of PTP hardware clocks.
A new class driver exports a kernel interface for specific clock
drivers and a user space interface. The infrastructure supports a
complete set of PTP hardware clock functionality.
+ Basic clock operations
- Set time
- Get time
- Shift the clock by a given offset atomically
- Adjust clock frequency
+ Ancillary clock features
- One short or periodic alarms, with signal delivery to user program
- Time stamp external events
- Period output signals configurable from user space
- Synchronization of the Linux system time via the PPS subsystem
** PTP hardware clock kernel API
A PTP clock driver registers itself with the class driver. The
class driver handles all of the dealings with user space. The
author of a clock driver need only implement the details of
programming the clock hardware. The clock driver notifies the class
driver of asynchronous events (alarms and external time stamps) via
a simple message passing interface.
The class driver supports multiple PTP clock drivers. In normal use
cases, only one PTP clock is needed. However, for testing and
development, it can be useful to have more than one clock in a
single system, in order to allow performance comparisons.
** PTP hardware clock user space API
The class driver also creates a character device for each
registered clock. User space can use an open file descriptor from
the character device as a POSIX clock id and may call
clock_gettime, clock_settime, and clock_adjtime. These calls
implement the basic clock operations.
User space programs may control the clock using standardized
ioctls. A program may query, enable, configure, and disable the
ancillary clock features. User space can receive time stamped
events via blocking read() and poll(). One shot and periodic
signals may be configured via the POSIX timer_settime() system
call.
** Writing clock drivers
Clock drivers include include/linux/ptp_clock_kernel.h and register
themselves by presenting a 'struct ptp_clock_info' to the
registration method. Clock drivers must implement all of the
functions in the interface. If a clock does not offer a particular
ancillary feature, then the driver should just return -EOPNOTSUPP
from those functions.
Drivers must ensure that all of the methods in interface are
reentrant. Since most hardware implementations treat the time value
as a 64 bit integer accessed as two 32 bit registers, drivers
should use spin_lock_irqsave/spin_unlock_irqrestore to protect
against concurrent access. This locking cannot be accomplished in
class driver, since the lock may also be needed by the clock
driver's interrupt service routine.
** Supported hardware
+ Freescale eTSEC gianfar
- 2 Time stamp external triggers, programmable polarity (opt. interrupt)
- 2 Alarm registers (optional interrupt)
- 3 Periodic signals (optional interrupt)
+ National DP83640
- 6 GPIOs programmable as inputs or outputs
- 6 GPIOs with dedicated functions (LED/JTAG/clock) can also be
used as general inputs or outputs
- GPIO inputs can time stamp external triggers
- GPIO outputs can produce periodic signals
- 1 interrupt pin
+ Intel IXP465
- Auxiliary Slave/Master Mode Snapshot (optional interrupt)
- Target Time (optional interrupt)
Documentation/ptp/testptp.c 0 → 100644
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/*
* PTP 1588 clock support - User space test program
*
* Copyright (C) 2010 OMICRON electronics GmbH
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <errno.h>
#include <fcntl.h>
#include <math.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/timex.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include <linux/ptp_clock.h>
#define DEVICE "/dev/ptp0"
#ifndef ADJ_SETOFFSET
#define ADJ_SETOFFSET 0x0100
#endif
#ifndef CLOCK_INVALID
#define CLOCK_INVALID -1
#endif
/* When glibc offers the syscall, this will go away. */
#include <sys/syscall.h>
static int clock_adjtime(clockid_t id, struct timex *tx)
{
return syscall(__NR_clock_adjtime, id, tx);
}
static clockid_t get_clockid(int fd)
{
#define CLOCKFD 3
#define FD_TO_CLOCKID(fd) ((~(clockid_t) (fd) << 3) | CLOCKFD)
return FD_TO_CLOCKID(fd);
}
static void handle_alarm(int s)
{
printf("received signal %d\n", s);
}
static int install_handler(int signum, void (*handler)(int))
{
struct sigaction action;
sigset_t mask;
/* Unblock the signal. */
sigemptyset(&mask);
sigaddset(&mask, signum);
sigprocmask(SIG_UNBLOCK, &mask, NULL);
/* Install the signal handler. */
action.sa_handler = handler;
action.sa_flags = 0;
sigemptyset(&action.sa_mask);
sigaction(signum, &action, NULL);
return 0;
}
static long ppb_to_scaled_ppm(int ppb)
{
/*
* The 'freq' field in the 'struct timex' is in parts per
* million, but with a 16 bit binary fractional field.
* Instead of calculating either one of
*
* scaled_ppm = (ppb / 1000) << 16 [1]
* scaled_ppm = (ppb << 16) / 1000 [2]
*
* we simply use double precision math, in order to avoid the
* truncation in [1] and the possible overflow in [2].
*/
return (long) (ppb * 65.536);
}
static void usage(char *progname)
{
fprintf(stderr,
"usage: %s [options]\n"
" -a val request a one-shot alarm after 'val' seconds\n"
" -A val request a periodic alarm every 'val' seconds\n"
" -c query the ptp clock's capabilities\n"
" -d name device to open\n"
" -e val read 'val' external time stamp events\n"
" -f val adjust the ptp clock frequency by 'val' ppb\n"
" -g get the ptp clock time\n"
" -h prints this message\n"
" -p val enable output with a period of 'val' nanoseconds\n"
" -P val enable or disable (val=1|0) the system clock PPS\n"
" -s set the ptp clock time from the system time\n"
" -S set the system time from the ptp clock time\n"
" -t val shift the ptp clock time by 'val' seconds\n",
progname);
}
int main(int argc, char *argv[])
{
struct ptp_clock_caps caps;
struct ptp_extts_event event;
struct ptp_extts_request extts_request;
struct ptp_perout_request perout_request;
struct timespec ts;
struct timex tx;
static timer_t timerid;
struct itimerspec timeout;
struct sigevent sigevent;
char *progname;
int c, cnt, fd;
char *device = DEVICE;
clockid_t clkid;
int adjfreq = 0x7fffffff;
int adjtime = 0;
int capabilities = 0;
int extts = 0;
int gettime = 0;
int oneshot = 0;
int periodic = 0;
int perout = -1;
int pps = -1;
int settime = 0;
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghp:P:sSt:v"))) {
switch (c) {
case 'a':
oneshot = atoi(optarg);
break;
case 'A':
periodic = atoi(optarg);
break;
case 'c':
capabilities = 1;
break;
case 'd':
device = optarg;
break;
case 'e':
extts = atoi(optarg);
break;
case 'f':
adjfreq = atoi(optarg);
break;
case 'g':
gettime = 1;
break;
case 'p':
perout = atoi(optarg);
break;
case 'P':
pps = atoi(optarg);
break;
case 's':
settime = 1;
break;
case 'S':
settime = 2;
break;
case 't':
adjtime = atoi(optarg);
break;
case 'h':
usage(progname);
return 0;
case '?':
default:
usage(progname);
return -1;
}
}
fd = open(device, O_RDWR);
if (fd < 0) {
fprintf(stderr, "opening %s: %s\n", device, strerror(errno));
return -1;
}
clkid = get_clockid(fd);
if (CLOCK_INVALID == clkid) {
fprintf(stderr, "failed to read clock id\n");
return -1;
}
if (capabilities) {
if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
perror("PTP_CLOCK_GETCAPS");
} else {
printf("capabilities:\n"
" %d maximum frequency adjustment (ppb)\n"
" %d programmable alarms\n"
" %d external time stamp channels\n"
" %d programmable periodic signals\n"
" %d pulse per second\n",
caps.max_adj,
caps.n_alarm,
caps.n_ext_ts,
caps.n_per_out,
caps.pps);
}
}
if (0x7fffffff != adjfreq) {
memset(&tx, 0, sizeof(tx));
tx.modes = ADJ_FREQUENCY;
tx.freq = ppb_to_scaled_ppm(adjfreq);
if (clock_adjtime(clkid, &tx)) {
perror("clock_adjtime");
} else {
puts("frequency adjustment okay");
}
}
if (adjtime) {
memset(&tx, 0, sizeof(tx));
tx.modes = ADJ_SETOFFSET;
tx.time.tv_sec = adjtime;
tx.time.tv_usec = 0;
if (clock_adjtime(clkid, &tx) < 0) {
perror("clock_adjtime");
} else {
puts("time shift okay");
}
}
if (gettime) {
if (clock_gettime(clkid, &ts)) {
perror("clock_gettime");
} else {
printf("clock time: %ld.%09ld or %s",
ts.tv_sec, ts.tv_nsec, ctime(&ts.tv_sec));
}
}
if (settime == 1) {
clock_gettime(CLOCK_REALTIME, &ts);
if (clock_settime(clkid, &ts)) {
perror("clock_settime");
} else {
puts("set time okay");
}
}
if (settime == 2) {
clock_gettime(clkid, &ts);
if (clock_settime(CLOCK_REALTIME, &ts)) {
perror("clock_settime");
} else {
puts("set time okay");
}
}
if (extts) {
memset(&extts_request, 0, sizeof(extts_request));
extts_request.index = 0;
extts_request.flags = PTP_ENABLE_FEATURE;
if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
perror("PTP_EXTTS_REQUEST");
extts = 0;
} else {
puts("external time stamp request okay");
}
for (; extts; extts--) {
cnt = read(fd, &event, sizeof(event));
if (cnt != sizeof(event)) {
perror("read");
break;
}
printf("event index %u at %lld.%09u\n", event.index,
event.t.sec, event.t.nsec);
fflush(stdout);
}
/* Disable the feature again. */
extts_request.flags = 0;
if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
perror("PTP_EXTTS_REQUEST");
}
}
if (oneshot) {
install_handler(SIGALRM, handle_alarm);
/* Create a timer. */
sigevent.sigev_notify = SIGEV_SIGNAL;
sigevent.sigev_signo = SIGALRM;
if (timer_create(clkid, &sigevent, &timerid)) {
perror("timer_create");
return -1;
}
/* Start the timer. */
memset(&timeout, 0, sizeof(timeout));
timeout.it_value.tv_sec = oneshot;
if (timer_settime(timerid, 0, &timeout, NULL)) {
perror("timer_settime");
return -1;
}
pause();
timer_delete(timerid);
}
if (periodic) {
install_handler(SIGALRM, handle_alarm);
/* Create a timer. */
sigevent.sigev_notify = SIGEV_SIGNAL;
sigevent.sigev_signo = SIGALRM;
if (timer_create(clkid, &sigevent, &timerid)) {
perror("timer_create");
return -1;
}
/* Start the timer. */
memset(&timeout, 0, sizeof(timeout));
timeout.it_interval.tv_sec = periodic;
timeout.it_value.tv_sec = periodic;
if (timer_settime(timerid, 0, &timeout, NULL)) {
perror("timer_settime");
return -1;
}
while (1) {
pause();
}
timer_delete(timerid);
}
if (perout >= 0) {
if (clock_gettime(clkid, &ts)) {
perror("clock_gettime");
return -1;
}
memset(&perout_request, 0, sizeof(perout_request));
perout_request.index = 0;
perout_request.start.sec = ts.tv_sec + 2;
perout_request.start.nsec = 0;
perout_request.period.sec = 0;
perout_request.period.nsec = perout;
if (ioctl(fd, PTP_PEROUT_REQUEST, &perout_request)) {
perror("PTP_PEROUT_REQUEST");
} else {
puts("periodic output request okay");
}
}
if (pps != -1) {
int enable = pps ? 1 : 0;
if (ioctl(fd, PTP_ENABLE_PPS, enable)) {
perror("PTP_ENABLE_PPS");
} else {
puts("pps for system time request okay");
}
}
close(fd);
return 0;
}
Documentation/ptp/testptp.mk 0 → 100644
浏览文件 @ 1102c660
# PTP 1588 clock support - User space test program
#
# Copyright (C) 2010 OMICRON electronics GmbH
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
CC = $(CROSS_COMPILE)gcc
INC = -I$(KBUILD_OUTPUT)/usr/include
CFLAGS = -Wall $(INC)
LDLIBS = -lrt
PROGS = testptp
all: $(PROGS)
testptp: testptp.o
clean:
rm -f testptp.o
distclean: clean
rm -f $(PROGS)
Documentation/scsi/LICENSE.qla2xxx
浏览文件 @ 1102c660
Copyright (c) 2003-2005 QLogic Corporation
QLogic Linux Fibre Channel HBA Driver
Copyright (c) 2003-2011 QLogic Corporation
QLogic Linux/ESX Fibre Channel HBA Driver
This program includes a device driver for Linux 2.6 that may be
This program includes a device driver for Linux 2.6/ESX that may be
distributed with QLogic hardware specific firmware binary file.
You may modify and redistribute the device driver code under the
GNU General Public License as published by the Free Software
Foundation (version 2 or a later version).
GNU General Public License (a copy of which is attached hereto as
Exhibit A) published by the Free Software Foundation (version 2).
You may redistribute the hardware specific firmware binary file
under the following terms:
......@@ -43,3 +43,285 @@ OTHERWISE IN ANY INTELLECTUAL PROPERTY RIGHTS (PATENT, COPYRIGHT,
TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT) EMBODIED IN
ANY OTHER QLOGIC HARDWARE OR SOFTWARE EITHER SOLELY OR IN
COMBINATION WITH THIS PROGRAM.
EXHIBIT A
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
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We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
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Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
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Activities other than copying, distribution and modification are not
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These requirements apply to the modified work as a whole. If
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4. You may not copy, modify, sublicense, or distribute the Program
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8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
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of the General Public License from time to time. Such new versions will
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Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
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either of that version or of any later version published by the Free
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this License, you may choose any version ever published by the Free Software
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10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
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NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
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REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
Documentation/sound/alsa/ALSA-Configuration.txt
浏览文件 @ 1102c660
......@@ -1230,6 +1230,13 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
This module supports multiple cards.
The driver requires the firmware loader support on kernel.
Module snd-lola
---------------
Module for Digigram Lola PCI-e boards
This module supports multiple cards.
Module snd-lx6464es
-------------------
......
Documentation/sound/alsa/HD-Audio-Models.txt
浏览文件 @ 1102c660
......@@ -94,7 +94,7 @@ ALC662/663/272
3stack-dig 3-stack (2-channel) with SPDIF
3stack-6ch 3-stack (6-channel)
3stack-6ch-dig 3-stack (6-channel) with SPDIF
6stack-dig 6-stack with SPDIF
5stack-dig 5-stack with SPDIF
lenovo-101e Lenovo laptop
eeepc-p701 ASUS Eeepc P701
eeepc-ep20 ASUS Eeepc EP20
......
Documentation/stable_api_nonsense.txt
浏览文件 @ 1102c660
......@@ -122,7 +122,7 @@ operating system to suffer.
In both of these instances, all developers agreed that these were
important changes that needed to be made, and they were made, with
relatively little pain. If Linux had to ensure that it preserve a
relatively little pain. If Linux had to ensure that it will preserve a
stable source interface, a new interface would have been created, and
the older, broken one would have had to be maintained over time, leading
to extra work for the USB developers. Since all Linux USB developers do
......
Documentation/sysctl/fs.txt
浏览文件 @ 1102c660
......@@ -231,13 +231,6 @@ its creation).
This directory contains configuration options for the epoll(7) interface.
max_user_instances
------------------
This is the maximum number of epoll file descriptors that a single user can
have open at a given time. The default value is 128, and should be enough
for normal users.
max_user_watches
----------------
......
Documentation/sysctl/net.txt
浏览文件 @ 1102c660
......@@ -32,6 +32,17 @@ Table : Subdirectories in /proc/sys/net
1. /proc/sys/net/core - Network core options
-------------------------------------------------------
bpf_jit_enable
--------------
This enables Berkeley Packet Filter Just in Time compiler.
Currently supported on x86_64 architecture, bpf_jit provides a framework
to speed packet filtering, the one used by tcpdump/libpcap for example.
Values :
0 - disable the JIT (default value)
1 - enable the JIT
2 - enable the JIT and ask the compiler to emit traces on kernel log.
rmem_default
------------
......
Documentation/sysctl/vm.txt
浏览文件 @ 1102c660
......@@ -481,10 +481,10 @@ the DMA zone.
Type(A) is called as "Node" order. Type (B) is "Zone" order.
"Node order" orders the zonelists by node, then by zone within each node.
Specify "[Nn]ode" for zone order
Specify "[Nn]ode" for node order
"Zone Order" orders the zonelists by zone type, then by node within each
zone. Specify "[Zz]one"for zode order.
zone. Specify "[Zz]one" for zone order.
Specify "[Dd]efault" to request automatic configuration. Autoconfiguration
will select "node" order in following case.
......
Documentation/timers/timers-howto.txt
浏览文件 @ 1102c660
......@@ -24,7 +24,7 @@ ATOMIC CONTEXT:
ndelay(unsigned long nsecs)
udelay(unsigned long usecs)
mdelay(unsgined long msecs)
mdelay(unsigned long msecs)
udelay is the generally preferred API; ndelay-level
precision may not actually exist on many non-PC devices.
......
Documentation/usb/callbacks.txt
浏览文件 @ 1102c660
......@@ -95,9 +95,11 @@ pre_reset
int (*pre_reset)(struct usb_interface *intf);
Another driver or user space is triggering a reset on the device which
contains the interface passed as an argument. Cease IO and save any
device state you need to restore.
A driver or user space is triggering a reset on the device which
contains the interface passed as an argument. Cease IO, wait for all
outstanding URBs to complete, and save any device state you need to
restore. No more URBs may be submitted until the post_reset method
is called.
If you need to allocate memory here, use GFP_NOIO or GFP_ATOMIC, if you
are in atomic context.
......
Documentation/usb/linux-cdc-acm.inf
浏览文件 @ 1102c660
......@@ -90,10 +90,10 @@ ServiceBinary=%12%\USBSER.sys
[SourceDisksFiles]
[SourceDisksNames]
[DeviceList]
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_0525&PID_A4AB&MI_02
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02
[DeviceList.NTamd64]
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_0525&PID_A4AB&MI_02
%DESCRIPTION%=DriverInstall, USB\VID_0525&PID_A4A7, USB\VID_1D6B&PID_0104&MI_02
;------------------------------------------------------------------------------
......
Documentation/usb/linux.inf
浏览文件 @ 1102c660
......@@ -18,15 +18,15 @@ DriverVer = 06/21/2006,6.0.6000.16384
; Decoration for x86 architecture
[LinuxDevices.NTx86]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_1d6b&PID_0104&MI_00
; Decoration for x64 architecture
[LinuxDevices.NTamd64]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_1d6b&PID_0104&MI_00
; Decoration for ia64 architecture
[LinuxDevices.NTia64]
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_0525&PID_a4ab&MI_00
%LinuxDevice% = RNDIS.NT.5.1, USB\VID_0525&PID_a4a2, USB\VID_1d6b&PID_0104&MI_00
;@@@ This is the common setting for setup
[ControlFlags]
......
Documentation/vgaarbiter.txt
浏览文件 @ 1102c660
......@@ -14,11 +14,10 @@ the legacy VGA arbitration task (besides other bus management tasks) when more
than one legacy device co-exists on the same machine. But the problem happens
when these devices are trying to be accessed by different userspace clients
(e.g. two server in parallel). Their address assignments conflict. Moreover,
ideally, being an userspace application, it is not the role of the the X
server to control bus resources. Therefore an arbitration scheme outside of
the X server is needed to control the sharing of these resources. This
document introduces the operation of the VGA arbiter implemented for Linux
kernel.
ideally, being a userspace application, it is not the role of the X server to
control bus resources. Therefore an arbitration scheme outside of the X server
is needed to control the sharing of these resources. This document introduces
the operation of the VGA arbiter implemented for the Linux kernel.
----------------------------------------------------------------------------
......@@ -39,7 +38,7 @@ I.1 vgaarb
The vgaarb is a module of the Linux Kernel. When it is initially loaded, it
scans all PCI devices and adds the VGA ones inside the arbitration. The
arbiter then enables/disables the decoding on different devices of the VGA
legacy instructions. Device which do not want/need to use the arbiter may
legacy instructions. Devices which do not want/need to use the arbiter may
explicitly tell it by calling vga_set_legacy_decoding().
The kernel exports a char device interface (/dev/vga_arbiter) to the clients,
......@@ -95,8 +94,8 @@ In the case of devices hot-{un,}plugged, there is a hook - pci_notify() - to
notify them being added/removed in the system and automatically added/removed
in the arbiter.
There's also a in-kernel API of the arbiter in the case of DRM, vgacon and
others which may use the arbiter.
There is also an in-kernel API of the arbiter in case DRM, vgacon, or other
drivers want to use it.
I.2 libpciaccess
......@@ -117,9 +116,8 @@ Besides it, in pci_system were added:
struct pci_device *vga_default_dev;
The vga_count is usually need to keep informed how many cards are being
arbitrated, so for instance if there's only one then it can totally escape the
scheme.
The vga_count is used to track how many cards are being arbitrated, so for
instance, if there is only one card, then it can completely escape arbitration.
These functions below acquire VGA resources for the given card and mark those
......
Documentation/video4linux/CARDLIST.em28xx
浏览文件 @ 1102c660
......@@ -54,7 +54,7 @@
53 -> Pinnacle Hybrid Pro (em2881)
54 -> Kworld VS-DVB-T 323UR (em2882) [eb1a:e323]
55 -> Terratec Cinnergy Hybrid T USB XS (em2882) (em2882) [0ccd:005e,0ccd:0042]
56 -> Pinnacle Hybrid Pro (2) (em2882) [2304:0226]
56 -> Pinnacle Hybrid Pro (330e) (em2882) [2304:0226]
57 -> Kworld PlusTV HD Hybrid 330 (em2883) [eb1a:a316]
58 -> Compro VideoMate ForYou/Stereo (em2820/em2840) [185b:2041]
60 -> Hauppauge WinTV HVR 850 (em2883) [2040:651f]
......
Documentation/video4linux/Zoran
浏览文件 @ 1102c660
......@@ -130,7 +130,6 @@ Card number: 4
Note: No module for the mse3000 is available yet
Note: No module for the vpx3224 is available yet
Note: use encoder=X or decoder=X for non-default i2c chips
===========================
......
Documentation/video4linux/gspca.txt
浏览文件 @ 1102c660
......@@ -275,6 +275,7 @@ pac7302 093a:2629 Genious iSlim 300
pac7302 093a:262a Webcam 300k
pac7302 093a:262c Philips SPC 230 NC
jeilinj 0979:0280 Sakar 57379
jeilinj 0979:0280 Sportscam DV15
zc3xx 0ac8:0302 Z-star Vimicro zc0302
vc032x 0ac8:0321 Vimicro generic vc0321
vc032x 0ac8:0323 Vimicro Vc0323
......
Documentation/video4linux/uvcvideo.txt 0 → 100644
浏览文件 @ 1102c660
Linux USB Video Class (UVC) driver
==================================
This file documents some driver-specific aspects of the UVC driver, such as
driver-specific ioctls and implementation notes.
Questions and remarks can be sent to the Linux UVC development mailing list at
linux-uvc-devel@lists.berlios.de.
Extension Unit (XU) support
---------------------------
1. Introduction
The UVC specification allows for vendor-specific extensions through extension
units (XUs). The Linux UVC driver supports extension unit controls (XU controls)
through two separate mechanisms:
- through mappings of XU controls to V4L2 controls
- through a driver-specific ioctl interface
The first one allows generic V4L2 applications to use XU controls by mapping
certain XU controls onto V4L2 controls, which then show up during ordinary
control enumeration.
The second mechanism requires uvcvideo-specific knowledge for the application to
access XU controls but exposes the entire UVC XU concept to user space for
maximum flexibility.
Both mechanisms complement each other and are described in more detail below.
2. Control mappings
The UVC driver provides an API for user space applications to define so-called
control mappings at runtime. These allow for individual XU controls or byte
ranges thereof to be mapped to new V4L2 controls. Such controls appear and
function exactly like normal V4L2 controls (i.e. the stock controls, such as
brightness, contrast, etc.). However, reading or writing of such a V4L2 controls
triggers a read or write of the associated XU control.
The ioctl used to create these control mappings is called UVCIOC_CTRL_MAP.
Previous driver versions (before 0.2.0) required another ioctl to be used
beforehand (UVCIOC_CTRL_ADD) to pass XU control information to the UVC driver.
This is no longer necessary as newer uvcvideo versions query the information
directly from the device.
For details on the UVCIOC_CTRL_MAP ioctl please refer to the section titled
"IOCTL reference" below.
3. Driver specific XU control interface
For applications that need to access XU controls directly, e.g. for testing
purposes, firmware upload, or accessing binary controls, a second mechanism to
access XU controls is provided in the form of a driver-specific ioctl, namely
UVCIOC_CTRL_QUERY.
A call to this ioctl allows applications to send queries to the UVC driver that
directly map to the low-level UVC control requests.
In order to make such a request the UVC unit ID of the control's extension unit
and the control selector need to be known. This information either needs to be
hardcoded in the application or queried using other ways such as by parsing the
UVC descriptor or, if available, using the media controller API to enumerate a
device's entities.
Unless the control size is already known it is necessary to first make a
UVC_GET_LEN requests in order to be able to allocate a sufficiently large buffer
and set the buffer size to the correct value. Similarly, to find out whether
UVC_GET_CUR or UVC_SET_CUR are valid requests for a given control, a
UVC_GET_INFO request should be made. The bits 0 (GET supported) and 1 (SET
supported) of the resulting byte indicate which requests are valid.
With the addition of the UVCIOC_CTRL_QUERY ioctl the UVCIOC_CTRL_GET and
UVCIOC_CTRL_SET ioctls have become obsolete since their functionality is a
subset of the former ioctl. For the time being they are still supported but
application developers are encouraged to use UVCIOC_CTRL_QUERY instead.
For details on the UVCIOC_CTRL_QUERY ioctl please refer to the section titled
"IOCTL reference" below.
4. Security
The API doesn't currently provide a fine-grained access control facility. The
UVCIOC_CTRL_ADD and UVCIOC_CTRL_MAP ioctls require super user permissions.
Suggestions on how to improve this are welcome.
5. Debugging
In order to debug problems related to XU controls or controls in general it is
recommended to enable the UVC_TRACE_CONTROL bit in the module parameter 'trace'.
This causes extra output to be written into the system log.
6. IOCTL reference
---- UVCIOC_CTRL_MAP - Map a UVC control to a V4L2 control ----
Argument: struct uvc_xu_control_mapping
Description:
This ioctl creates a mapping between a UVC control or part of a UVC
control and a V4L2 control. Once mappings are defined, userspace
applications can access vendor-defined UVC control through the V4L2
control API.
To create a mapping, applications fill the uvc_xu_control_mapping
structure with information about an existing UVC control defined with
UVCIOC_CTRL_ADD and a new V4L2 control.
A UVC control can be mapped to several V4L2 controls. For instance,
a UVC pan/tilt control could be mapped to separate pan and tilt V4L2
controls. The UVC control is divided into non overlapping fields using
the 'size' and 'offset' fields and are then independantly mapped to
V4L2 control.
For signed integer V4L2 controls the data_type field should be set to
UVC_CTRL_DATA_TYPE_SIGNED. Other values are currently ignored.
Return value:
On success 0 is returned. On error -1 is returned and errno is set
appropriately.
ENOMEM
Not enough memory to perform the operation.
EPERM
Insufficient privileges (super user privileges are required).
EINVAL
No such UVC control.
EOVERFLOW
The requested offset and size would overflow the UVC control.
EEXIST
Mapping already exists.
Data types:
* struct uvc_xu_control_mapping
__u32 id V4L2 control identifier
__u8 name[32] V4L2 control name
__u8 entity[16] UVC extension unit GUID
__u8 selector UVC control selector
__u8 size V4L2 control size (in bits)
__u8 offset V4L2 control offset (in bits)
enum v4l2_ctrl_type
v4l2_type V4L2 control type
enum uvc_control_data_type
data_type UVC control data type
struct uvc_menu_info
*menu_info Array of menu entries (for menu controls only)
__u32 menu_count Number of menu entries (for menu controls only)
* struct uvc_menu_info
__u32 value Menu entry value used by the device
__u8 name[32] Menu entry name
* enum uvc_control_data_type
UVC_CTRL_DATA_TYPE_RAW Raw control (byte array)
UVC_CTRL_DATA_TYPE_SIGNED Signed integer
UVC_CTRL_DATA_TYPE_UNSIGNED Unsigned integer
UVC_CTRL_DATA_TYPE_BOOLEAN Boolean
UVC_CTRL_DATA_TYPE_ENUM Enumeration
UVC_CTRL_DATA_TYPE_BITMASK Bitmask
---- UVCIOC_CTRL_QUERY - Query a UVC XU control ----
Argument: struct uvc_xu_control_query
Description:
This ioctl queries a UVC XU control identified by its extension unit ID
and control selector.
There are a number of different queries available that closely
correspond to the low-level control requests described in the UVC
specification. These requests are:
UVC_GET_CUR
Obtain the current value of the control.
UVC_GET_MIN
Obtain the minimum value of the control.
UVC_GET_MAX
Obtain the maximum value of the control.
UVC_GET_DEF
Obtain the default value of the control.
UVC_GET_RES
Query the resolution of the control, i.e. the step size of the
allowed control values.
UVC_GET_LEN
Query the size of the control in bytes.
UVC_GET_INFO
Query the control information bitmap, which indicates whether
get/set requests are supported.
UVC_SET_CUR
Update the value of the control.
Applications must set the 'size' field to the correct length for the
control. Exceptions are the UVC_GET_LEN and UVC_GET_INFO queries, for
which the size must be set to 2 and 1, respectively. The 'data' field
must point to a valid writable buffer big enough to hold the indicated
number of data bytes.
Data is copied directly from the device without any driver-side
processing. Applications are responsible for data buffer formatting,
including little-endian/big-endian conversion. This is particularly
important for the result of the UVC_GET_LEN requests, which is always
returned as a little-endian 16-bit integer by the device.
Return value:
On success 0 is returned. On error -1 is returned and errno is set
appropriately.
ENOENT
The device does not support the given control or the specified
extension unit could not be found.
ENOBUFS
The specified buffer size is incorrect (too big or too small).
EINVAL
An invalid request code was passed.
EBADRQC
The given request is not supported by the given control.
EFAULT
The data pointer references an inaccessible memory area.
Data types:
* struct uvc_xu_control_query
__u8 unit Extension unit ID
__u8 selector Control selector
__u8 query Request code to send to the device
__u16 size Control data size (in bytes)
__u8 *data Control value
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......@@ -1182,6 +1182,16 @@
forge.net/> and explains these in detail, as well as
some other issues.
There is also a related point-to-point only "ucast" transport.
This is useful when your network does not support multicast, and
all network connections are simple point to point links.
The full set of command line options for this transport are
ethn=ucast,ethernet address,remote address,listen port,remote port
66..66.. TTUUNN//TTAAPP wwiitthh tthhee uummll__nneett hheellppeerr
......
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arch/arm/mach-omap1/flash.c
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arch/arm/mach-omap2/board-cm-t35.c
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arch/arm/mach-omap2/board-overo.c
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arch/arm/mach-omap2/control.h
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arch/arm/mach-omap2/display.c
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arch/arm/mach-omap2/omap-smp.c
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arch/arm/mach-orion5x/common.c
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arch/arm/mach-orion5x/d2net-setup.c
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arch/arm/mach-orion5x/mss2-setup.c
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arch/arm/mach-orion5x/ts409-setup.c
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arch/arm/mach-pxa/cm-x2xx-pci.c
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arch/arm/mach-pxa/hx4700.c
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arch/arm/mach-pxa/time.c
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arch/arm/mach-realview/core.c
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arch/arm/mach-s3c2410/nor-simtec.c
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arch/arm/mach-s3c64xx/irq.c
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arch/arm/mach-sa1100/time.c
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arch/mips/kernel/r6000_fpu.S
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arch/powerpc/include/asm/kexec.h
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arch/powerpc/include/asm/kvm_e500.h
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arch/powerpc/include/asm/kvm_host.h
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arch/powerpc/include/asm/kvm_ppc.h
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arch/powerpc/include/asm/lppaca.h
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arch/powerpc/include/asm/machdep.h
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arch/powerpc/include/asm/mmu.h
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arch/powerpc/include/asm/mpic.h
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arch/powerpc/include/asm/pgalloc.h
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arch/powerpc/include/asm/ppc_asm.h
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arch/powerpc/include/asm/smp.h
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arch/powerpc/include/asm/systbl.h
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arch/powerpc/include/asm/system.h
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arch/powerpc/include/asm/tlbflush.h
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arch/powerpc/include/asm/udbg.h
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arch/powerpc/include/asm/unistd.h
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arch/powerpc/kernel/cputable.c
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arch/powerpc/kernel/entry_64.S
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arch/powerpc/kernel/head_32.S
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arch/powerpc/kernel/head_64.S
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arch/powerpc/kernel/irq.c
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arch/powerpc/kernel/kgdb.c
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arch/powerpc/kernel/lparcfg.c
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arch/powerpc/kernel/misc_32.S
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arch/powerpc/kernel/misc_64.S
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arch/powerpc/kernel/paca.c
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arch/powerpc/kernel/pci_dn.c
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arch/powerpc/kernel/ppc_ksyms.c
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arch/powerpc/kernel/process.c
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arch/powerpc/kernel/prom_init.c
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arch/powerpc/kernel/rtas.c
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arch/powerpc/kernel/setup-common.c
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arch/powerpc/kernel/setup_32.c
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arch/powerpc/kernel/setup_64.c
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