chao/linuxptp
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Author SHA1 Message Date
Richard Cochran
32ee558ef8 Add a command line option to set the message level. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
f135133a88 Print the synchronization statistics at the information level. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
0536aa7413 Issue a warning when the path delay turns out negative. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
e47549e73f Ignore messages from ourselves and from the wrong domain. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
851675833a Do not print debug messages by default. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
95185673f5 Fix message leak in the port event handler. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
50b82c200d Do not treat signaling and management messages as errors. 
Instead we just ignore them for now.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
a736b0c2ff Make the slave only mode a non-default option. 
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
Richard Cochran
e2c02e49c7 Implement the master sync timer and message. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
39f5b2c449 Fix delay response message format. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
e96d26f13f Group the sequence numbers together in one structure. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
72703ba36a Implement the master announce timer and message. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
7dbdf2985c Provide methods to obtain a clock's parent and time properties data sets. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
da17f75359 Implement the port master qualification timer. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
62afef45db Clear all timers when changing port state. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
3481c99c70 Add an access method for a clock's currentDS.stepsRemoved. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
b76c4e108f Introduce an event recommending the grand master state. 
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
Richard Cochran
10753faccf Implement the synchronization events. 
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
Richard Cochran
347b42b7d5 udp: Use the bind to device socket option. 
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
Richard Cochran
95d5c36c0f udp: turn off multicast loop back. 
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
Richard Cochran
5555a2f029 udp: Use the IP_ADD_MEMBERSHIP socket option. 
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
Richard Cochran
447d4d442c udp: bring a warning or error if the driver changes our hwtstamp options. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-12-18 09:35:41 +01:00
Richard Cochran
b0d547cac4 udp: use the message logging facility instead of stdio. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-12-18 08:21:47 +01:00
Richard Cochran
1de37086ef Rename the main program to something better sounding. 2011-12-13 09:09:08 +01:00
Richard Cochran
623add8303 Do not generate dependencies if we are going to clean. 2011-12-13 09:04:08 +01:00
Richard Cochran
ecf959ce3d Reject negative path delay. 
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
Richard Cochran
cecc20a307 udp: wait longer for transmit time stamps 
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
Richard Cochran
87e61f9770 Let the clock servo know about the expected time stamp quality. 
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
Richard Cochran
01691df47b Add a bunch more documentation. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-27 14:24:03 +01:00
Richard Cochran
429c126b58 Select the system clock whenever legacy hardware time stamps are used. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-27 14:24:03 +01:00
Richard Cochran
56a5adc1cc Smooth the path delay estimate with a moving average. 
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
Richard Cochran
68aea3058c Use the timeout table for the delay request messages. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-27 14:24:03 +01:00
Richard Cochran
1d6737b75c Add a time out table for delay requests. 
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
Richard Cochran
2fd7a1c18f Use the correct slave-only clock class. 
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
Richard Cochran
5f7facdc63 Bind transmitted packets to the port's network interface. 
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
Richard Cochran
ebd353aff6 Link it all together, but in slave-only mode. 
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
Richard Cochran
dae76b951a Implement the port layer. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-13 08:41:05 +01:00
Richard Cochran
49cd10e678 Implement the PTP clock. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-12 18:59:13 +01:00
Richard Cochran
5b8fa684ae phc: Add a method to query the maximum adjustment. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-12 18:58:59 +01:00
Richard Cochran
150897669e Add the main program. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-12 17:41:20 +01:00
Richard Cochran
2a8711a125 Fix a misplaced doxygen comment. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-12 17:35:14 +01:00
Richard Cochran
fc378711d8 Add an abstract time value type. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-12 13:58:28 +01:00
Richard Cochran
5c010351c0 Add a modular clock servo interface with a PI controller. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-12 12:31:18 +01:00
Richard Cochran
edcb731cc2 Add a message layer. 
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
Richard Cochran
60f3a85463 Add transport over UDP IPv4. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-06 08:16:19 +01:00
Richard Cochran
e930bc4e11 Add utility functions for obtaining human readable strings. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-06 07:37:06 +01:00
Richard Cochran
c9a15e6094 Add the best master clock algorithm. 
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
Richard Cochran
f5ef4a3d3d Add the state machine. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-04 18:28:29 +01:00
Richard Cochran
bb1f18d87b Add functions for logging messages in kernel style. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-01 18:12:09 +01:00
Richard Cochran
11e0446c0e Add code to open and close PHC devices. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2011-11-01 18:00:16 +01:00