0536aa7413
Issue a warning when the path delay turns out negative.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
e47549e73f
Ignore messages from ourselves and from the wrong domain.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
851675833a
Do not print debug messages by default.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
95185673f5
Fix message leak in the port event handler.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
50b82c200d
Do not treat signaling and management messages as errors.
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Instead we just ignore them for now.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
a736b0c2ff
Make the slave only mode a non-default option.
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Now that we have the master code in place, there is no longer any need
to restrict ourselves.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
e2c02e49c7
Implement the master sync timer and message.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
39f5b2c449
Fix delay response message format.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
e96d26f13f
Group the sequence numbers together in one structure.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
72703ba36a
Implement the master announce timer and message.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
7dbdf2985c
Provide methods to obtain a clock's parent and time properties data sets.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
da17f75359
Implement the port master qualification timer.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
62afef45db
Clear all timers when changing port state.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
3481c99c70
Add an access method for a clock's currentDS.stepsRemoved.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
b76c4e108f
Introduce an event recommending the grand master state.
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We already have a grand master state. Adding this event will simplify the
overall logic, since it will avoid the silly requirement to set the
qualification timeout to zero when entering the grand master state.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
10753faccf
Implement the synchronization events.
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This will allow a port to get from the uncalibrated into the slave state.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
347b42b7d5
udp: Use the bind to device socket option.
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Without this Linux specific option, multicast packets arrive on one
interface are delivered by the kernel to all others.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
95d5c36c0f
udp: turn off multicast loop back.
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This option is on by default, but we don't want or need it.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
5555a2f029
udp: Use the IP_ADD_MEMBERSHIP socket option.
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For some reason, MCAST_JOIN_GROUP is not working under uClinux. We can
just stick with the more traditional method.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:53 +01:00
447d4d442c
udp: bring a warning or error if the driver changes our hwtstamp options.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-18 09:35:41 +01:00
b0d547cac4
udp: use the message logging facility instead of stdio.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-18 08:21:47 +01:00
1de37086ef
Rename the main program to something better sounding.
2011-12-13 09:09:08 +01:00
623add8303
Do not generate dependencies if we are going to clean.
2011-12-13 09:04:08 +01:00
ecf959ce3d
Reject negative path delay.
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If the path delay comes out negative, then something is amiss. In this
case, we just print a warning and ignore the path delay estimate.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-13 05:30:45 +01:00
cecc20a307
udp: wait longer for transmit time stamps
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Some hardware is a bit pokey. We now wait forever on EINTR and just a
little bit on EAGAIN.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-13 05:28:54 +01:00
87e61f9770
Let the clock servo know about the expected time stamp quality.
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If software time stamping is to be used, then the servo will want to
have appropriate filtering.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-13 04:57:28 +01:00
01691df47b
Add a bunch more documentation.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-27 14:24:03 +01:00
429c126b58
Select the system clock whenever legacy hardware time stamps are used.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-27 14:24:03 +01:00
56a5adc1cc
Smooth the path delay estimate with a moving average.
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This is really just a first attempt using a hard coded length. Probably
it will be necessary to let the length be configurable and/or adaptable.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-27 14:24:03 +01:00
68aea3058c
Use the timeout table for the delay request messages.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-27 14:24:03 +01:00
1d6737b75c
Add a time out table for delay requests.
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We can pre-compute a table of suitable values in order to simplify the
run time random delay selection.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-22 05:40:50 +01:00
2fd7a1c18f
Use the correct slave-only clock class.
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If we are going to be slave-only, then we should also advertise the
correct clock class.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-20 18:53:38 +01:00
5f7facdc63
Bind transmitted packets to the port's network interface.
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Even though the MCAST_JOIN_GROUP socket option includes the interface
index, this applies to the received packets only. To bind the outgoing
packets to a particular interface, the IP_MULTICAST_IF option is needed.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-20 18:31:33 +01:00
ebd353aff6
Link it all together, but in slave-only mode.
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Since the master implementation is still lacking, we will just keep
the slave-only flag hard coded for now.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-13 12:39:49 +01:00
dae76b951a
Implement the port layer.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-13 08:41:05 +01:00
49cd10e678
Implement the PTP clock.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-12 18:59:13 +01:00
5b8fa684ae
phc: Add a method to query the maximum adjustment.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-12 18:58:59 +01:00
150897669e
Add the main program.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-12 17:41:20 +01:00
2a8711a125
Fix a misplaced doxygen comment.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-12 17:35:14 +01:00
fc378711d8
Add an abstract time value type.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-12 13:58:28 +01:00
5c010351c0
Add a modular clock servo interface with a PI controller.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-12 12:31:18 +01:00
edcb731cc2
Add a message layer.
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Note that only some of the message types are implemented.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-06 09:02:57 +01:00
60f3a85463
Add transport over UDP IPv4.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-06 08:16:19 +01:00
e930bc4e11
Add utility functions for obtaining human readable strings.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-06 07:37:06 +01:00
c9a15e6094
Add the best master clock algorithm.
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This commit also introduces clock and port objects, but only with the
minimal interface needed by the BMC.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-04 19:20:23 +01:00
f5ef4a3d3d
Add the state machine.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-04 18:28:29 +01:00
bb1f18d87b
Add functions for logging messages in kernel style.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-01 18:12:09 +01:00
11e0446c0e
Add code to open and close PHC devices.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-01 18:00:16 +01:00
af380e8617
Add the license, a readme, and some header files.
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This commit gets the project off to a good start. The header files provide
some basic data types and definitions.
The README file will most probably grow over time.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-11-01 17:39:14 +01:00
Richard Cochran