The addition of a trailing \n (suggested by me) cannot be made
if in /etc/ppsi.conf exists: configuration is a constant string

This also simplifies the code and makes better error management: we
can use fprintf here, and fopen/fread as well.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This fixes a bug which was introduced in commit 75eb932e and found out
(together with the proposed solution) by Alessandro Rubini.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

This patch permits to properly parse ppsi.conf files even if it is
not terminated with a newline. Thanks to Alessandro Rubini for the hint.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

The core of server functionality is in wrs-ipcserver.c, which
basically consists of a porting of PTPWRd/ptpd_exports.[ch], as they are
seen in commit 080d54fb of the repository:
git://ohwr.org/white-rabbit/ppsi/ptp-noposix.git

Two notes:
- this implementation, like the one I'm porting from, does not make use
of minipc_server_get_fdset, which would make the minipc_server_action
be called only when necessary (by means of a select); indeed,
minipc_server_action is called at each cycle in the main loop;
- the server is created by using "ptpd" as its mnemonic name, for
compatibility with ptp-noposix.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Some archs (e.g. wrs does) may need to force the usage of a specific
extension, so include extension Makefile after arch Makefile, so that
arch Makefile can modify PROTO_EXT env var.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

wr_servo_enable_tracking function will be used by arch-wrs, so define it
in wr-api.h.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Since ppsi-wrs.h is used by time-wrs files too, move it in include
directory.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

All the placeholders in wrs-time.c and wrs-calibration.c are here
filled with their proper implementation.

Note: some functions were already implemented in commit 19a203b4.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Since the hal client is called in two places
(arch-wrs/wrs-calibration.c and time-wrs/wrs-time.c), put what is common
in the general include file provided by arch-wrs. Indeed this file
should be moved to arch-wrs/include (will be done in one of the
next commits).
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

hal_exports.h is copied from commit c8ac96b4,
repository git@ohwr.org:white-rabbit/wr-switch-sw.git
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

In this first commit, time-wrs will behave the same as time-unix.
More functions will be added by the next commits.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

In order to time-unix functions to be used externally, these three changes
are here made:
* created time-unix/unix-time.h
* removed static attribute from functions in time-unix
* added a proper include path to CFLAGS
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

This patch is need to make ppsi compile with a time- implementation
different than unix.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

mini-rpc is a copy of commit 4c87062d from
repository git://github.com/a-rubini/mini-rpc.gitSigned-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

This function is the only one I'm renaming at the moment, since
it's the only one that will change for sure (for wrs specific needs).

There is some more unix_something stuff, but I don't rename anything
else since it should remain the same as what is in arch-unix.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

This commit is just a copy of arch-unix, as it is in commit 97c0c129.
The only difference is in file names, as they have been renamed with
wrs- prefix

arch-wrs will host the stuff for WR switch architecture. It will
be very similar to arch-unix, with the only difference of using
wr switch HAL (Hardware Abstraction Layer) instead of the standard
unix "read/write/ioctl to dev" to drive the White Rabbit specific
hardware.
Signed-off-by: Aurelio Colosimo <aurelio@aureliocolosimo.it>

This patch-set creates the "time-" directory set, allowing different
time engines to be used for the unix architectures. This also
allows to cleanly create arch-wrs and time-wrs, done by Aurelio
in the next commits.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This includes the time (and net) operations from arch-wrpc. Like bare,
arch-wrpc is not able to use a different timing engine than its own.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This commit separates to its own directory the timing code specific
to bere linux implementations.  If you build with ARCH=bare-i386
or ARCH=bare-i386-64, TIME=bare is automatically selected.

Please note how bare builds don't allow externally-set TIME=, as the
architecture Makefile forces "TIME := bare" (not "TIME ?= bare").
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This is the first implementation of the concept ot "TIME=" on the
configuration of ppsi.  Time-related code that used to live in arch-unix
is now split into its own directory. If you have special timing hardware,
you can write your own pp_network_operations and pp_time_operations
in your own directory and select them using TIME= .

We'll do Linux-specific hardware timestamping soon, and WhiteRabbit as
well.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

The unix time and network operations are going to be used as a fall-back
solution by other timing engines.

For example, hardware-specific timestamping capabilities can be
selected (such as the Linux ioctl API) but if the Ethernet interface
(and thus the pp_instance) doesn't support the feature, related code
will be able to set back the unix operations in place.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>