Implementation of UK0 interface via sound card
This is work in progress.
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Makefile
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Makefile.in
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.deps
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.libs
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*.o
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*.lo
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*.la
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*.pc
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aclocal.m4
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acinclude.m4
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aminclude.am
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m4/*.m4
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autom4te.cache
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compile
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config.h*
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config.sub
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config.log
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config.status
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config.guess
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configure
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depcomp
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missing
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ltmain.sh
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install-sh
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stamp-h1
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libtool
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.tarball-version
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.version
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.dirstamp
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Doxyfile
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.*.sw?
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src/libdebug/libdebug.a
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src/liboptions/liboptions.a
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src/libsample/libsample.a
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src/libfilter/libfilter.a
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src/libwave/libwave.a
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src/libdisplay/libdisplay.a
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src/libsound/libsound.a
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src/uk0/uk0-soundcard
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@ -0,0 +1,674 @@
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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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|
if neither you nor any third party retains the ability to install
|
||||||
|
modified object code on the User Product (for example, the work has
|
||||||
|
been installed in ROM).
|
||||||
|
|
||||||
|
The requirement to provide Installation Information does not include a
|
||||||
|
requirement to continue to provide support service, warranty, or updates
|
||||||
|
for a work that has been modified or installed by the recipient, or for
|
||||||
|
the User Product in which it has been modified or installed. Access to a
|
||||||
|
network may be denied when the modification itself materially and
|
||||||
|
adversely affects the operation of the network or violates the rules and
|
||||||
|
protocols for communication across the network.
|
||||||
|
|
||||||
|
Corresponding Source conveyed, and Installation Information provided,
|
||||||
|
in accord with this section must be in a format that is publicly
|
||||||
|
documented (and with an implementation available to the public in
|
||||||
|
source code form), and must require no special password or key for
|
||||||
|
unpacking, reading or copying.
|
||||||
|
|
||||||
|
7. Additional Terms.
|
||||||
|
|
||||||
|
"Additional permissions" are terms that supplement the terms of this
|
||||||
|
License by making exceptions from one or more of its conditions.
|
||||||
|
Additional permissions that are applicable to the entire Program shall
|
||||||
|
be treated as though they were included in this License, to the extent
|
||||||
|
that they are valid under applicable law. If additional permissions
|
||||||
|
apply only to part of the Program, that part may be used separately
|
||||||
|
under those permissions, but the entire Program remains governed by
|
||||||
|
this License without regard to the additional permissions.
|
||||||
|
|
||||||
|
When you convey a copy of a covered work, you may at your option
|
||||||
|
remove any additional permissions from that copy, or from any part of
|
||||||
|
it. (Additional permissions may be written to require their own
|
||||||
|
removal in certain cases when you modify the work.) You may place
|
||||||
|
additional permissions on material, added by you to a covered work,
|
||||||
|
for which you have or can give appropriate copyright permission.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, for material you
|
||||||
|
add to a covered work, you may (if authorized by the copyright holders of
|
||||||
|
that material) supplement the terms of this License with terms:
|
||||||
|
|
||||||
|
a) Disclaiming warranty or limiting liability differently from the
|
||||||
|
terms of sections 15 and 16 of this License; or
|
||||||
|
|
||||||
|
b) Requiring preservation of specified reasonable legal notices or
|
||||||
|
author attributions in that material or in the Appropriate Legal
|
||||||
|
Notices displayed by works containing it; or
|
||||||
|
|
||||||
|
c) Prohibiting misrepresentation of the origin of that material, or
|
||||||
|
requiring that modified versions of such material be marked in
|
||||||
|
reasonable ways as different from the original version; or
|
||||||
|
|
||||||
|
d) Limiting the use for publicity purposes of names of licensors or
|
||||||
|
authors of the material; or
|
||||||
|
|
||||||
|
e) Declining to grant rights under trademark law for use of some
|
||||||
|
trade names, trademarks, or service marks; or
|
||||||
|
|
||||||
|
f) Requiring indemnification of licensors and authors of that
|
||||||
|
material by anyone who conveys the material (or modified versions of
|
||||||
|
it) with contractual assumptions of liability to the recipient, for
|
||||||
|
any liability that these contractual assumptions directly impose on
|
||||||
|
those licensors and authors.
|
||||||
|
|
||||||
|
All other non-permissive additional terms are considered "further
|
||||||
|
restrictions" within the meaning of section 10. If the Program as you
|
||||||
|
received it, or any part of it, contains a notice stating that it is
|
||||||
|
governed by this License along with a term that is a further
|
||||||
|
restriction, you may remove that term. If a license document contains
|
||||||
|
a further restriction but permits relicensing or conveying under this
|
||||||
|
License, you may add to a covered work material governed by the terms
|
||||||
|
of that license document, provided that the further restriction does
|
||||||
|
not survive such relicensing or conveying.
|
||||||
|
|
||||||
|
If you add terms to a covered work in accord with this section, you
|
||||||
|
must place, in the relevant source files, a statement of the
|
||||||
|
additional terms that apply to those files, or a notice indicating
|
||||||
|
where to find the applicable terms.
|
||||||
|
|
||||||
|
Additional terms, permissive or non-permissive, may be stated in the
|
||||||
|
form of a separately written license, or stated as exceptions;
|
||||||
|
the above requirements apply either way.
|
||||||
|
|
||||||
|
8. Termination.
|
||||||
|
|
||||||
|
You may not propagate or modify a covered work except as expressly
|
||||||
|
provided under this License. Any attempt otherwise to propagate or
|
||||||
|
modify it is void, and will automatically terminate your rights under
|
||||||
|
this License (including any patent licenses granted under the third
|
||||||
|
paragraph of section 11).
|
||||||
|
|
||||||
|
However, if you cease all violation of this License, then your
|
||||||
|
license from a particular copyright holder is reinstated (a)
|
||||||
|
provisionally, unless and until the copyright holder explicitly and
|
||||||
|
finally terminates your license, and (b) permanently, if the copyright
|
||||||
|
holder fails to notify you of the violation by some reasonable means
|
||||||
|
prior to 60 days after the cessation.
|
||||||
|
|
||||||
|
Moreover, your license from a particular copyright holder is
|
||||||
|
reinstated permanently if the copyright holder notifies you of the
|
||||||
|
violation by some reasonable means, this is the first time you have
|
||||||
|
received notice of violation of this License (for any work) from that
|
||||||
|
copyright holder, and you cure the violation prior to 30 days after
|
||||||
|
your receipt of the notice.
|
||||||
|
|
||||||
|
Termination of your rights under this section does not terminate the
|
||||||
|
licenses of parties who have received copies or rights from you under
|
||||||
|
this License. If your rights have been terminated and not permanently
|
||||||
|
reinstated, you do not qualify to receive new licenses for the same
|
||||||
|
material under section 10.
|
||||||
|
|
||||||
|
9. Acceptance Not Required for Having Copies.
|
||||||
|
|
||||||
|
You are not required to accept this License in order to receive or
|
||||||
|
run a copy of the Program. Ancillary propagation of a covered work
|
||||||
|
occurring solely as a consequence of using peer-to-peer transmission
|
||||||
|
to receive a copy likewise does not require acceptance. However,
|
||||||
|
nothing other than this License grants you permission to propagate or
|
||||||
|
modify any covered work. These actions infringe copyright if you do
|
||||||
|
not accept this License. Therefore, by modifying or propagating a
|
||||||
|
covered work, you indicate your acceptance of this License to do so.
|
||||||
|
|
||||||
|
10. Automatic Licensing of Downstream Recipients.
|
||||||
|
|
||||||
|
Each time you convey a covered work, the recipient automatically
|
||||||
|
receives a license from the original licensors, to run, modify and
|
||||||
|
propagate that work, subject to this License. You are not responsible
|
||||||
|
for enforcing compliance by third parties with this License.
|
||||||
|
|
||||||
|
An "entity transaction" is a transaction transferring control of an
|
||||||
|
organization, or substantially all assets of one, or subdividing an
|
||||||
|
organization, or merging organizations. If propagation of a covered
|
||||||
|
work results from an entity transaction, each party to that
|
||||||
|
transaction who receives a copy of the work also receives whatever
|
||||||
|
licenses to the work the party's predecessor in interest had or could
|
||||||
|
give under the previous paragraph, plus a right to possession of the
|
||||||
|
Corresponding Source of the work from the predecessor in interest, if
|
||||||
|
the predecessor has it or can get it with reasonable efforts.
|
||||||
|
|
||||||
|
You may not impose any further restrictions on the exercise of the
|
||||||
|
rights granted or affirmed under this License. For example, you may
|
||||||
|
not impose a license fee, royalty, or other charge for exercise of
|
||||||
|
rights granted under this License, and you may not initiate litigation
|
||||||
|
(including a cross-claim or counterclaim in a lawsuit) alleging that
|
||||||
|
any patent claim is infringed by making, using, selling, offering for
|
||||||
|
sale, or importing the Program or any portion of it.
|
||||||
|
|
||||||
|
11. Patents.
|
||||||
|
|
||||||
|
A "contributor" is a copyright holder who authorizes use under this
|
||||||
|
License of the Program or a work on which the Program is based. The
|
||||||
|
work thus licensed is called the contributor's "contributor version".
|
||||||
|
|
||||||
|
A contributor's "essential patent claims" are all patent claims
|
||||||
|
owned or controlled by the contributor, whether already acquired or
|
||||||
|
hereafter acquired, that would be infringed by some manner, permitted
|
||||||
|
by this License, of making, using, or selling its contributor version,
|
||||||
|
but do not include claims that would be infringed only as a
|
||||||
|
consequence of further modification of the contributor version. For
|
||||||
|
purposes of this definition, "control" includes the right to grant
|
||||||
|
patent sublicenses in a manner consistent with the requirements of
|
||||||
|
this License.
|
||||||
|
|
||||||
|
Each contributor grants you a non-exclusive, worldwide, royalty-free
|
||||||
|
patent license under the contributor's essential patent claims, to
|
||||||
|
make, use, sell, offer for sale, import and otherwise run, modify and
|
||||||
|
propagate the contents of its contributor version.
|
||||||
|
|
||||||
|
In the following three paragraphs, a "patent license" is any express
|
||||||
|
agreement or commitment, however denominated, not to enforce a patent
|
||||||
|
(such as an express permission to practice a patent or covenant not to
|
||||||
|
sue for patent infringement). To "grant" such a patent license to a
|
||||||
|
party means to make such an agreement or commitment not to enforce a
|
||||||
|
patent against the party.
|
||||||
|
|
||||||
|
If you convey a covered work, knowingly relying on a patent license,
|
||||||
|
and the Corresponding Source of the work is not available for anyone
|
||||||
|
to copy, free of charge and under the terms of this License, through a
|
||||||
|
publicly available network server or other readily accessible means,
|
||||||
|
then you must either (1) cause the Corresponding Source to be so
|
||||||
|
available, or (2) arrange to deprive yourself of the benefit of the
|
||||||
|
patent license for this particular work, or (3) arrange, in a manner
|
||||||
|
consistent with the requirements of this License, to extend the patent
|
||||||
|
license to downstream recipients. "Knowingly relying" means you have
|
||||||
|
actual knowledge that, but for the patent license, your conveying the
|
||||||
|
covered work in a country, or your recipient's use of the covered work
|
||||||
|
in a country, would infringe one or more identifiable patents in that
|
||||||
|
country that you have reason to believe are valid.
|
||||||
|
|
||||||
|
If, pursuant to or in connection with a single transaction or
|
||||||
|
arrangement, you convey, or propagate by procuring conveyance of, a
|
||||||
|
covered work, and grant a patent license to some of the parties
|
||||||
|
receiving the covered work authorizing them to use, propagate, modify
|
||||||
|
or convey a specific copy of the covered work, then the patent license
|
||||||
|
you grant is automatically extended to all recipients of the covered
|
||||||
|
work and works based on it.
|
||||||
|
|
||||||
|
A patent license is "discriminatory" if it does not include within
|
||||||
|
the scope of its coverage, prohibits the exercise of, or is
|
||||||
|
conditioned on the non-exercise of one or more of the rights that are
|
||||||
|
specifically granted under this License. You may not convey a covered
|
||||||
|
work if you are a party to an arrangement with a third party that is
|
||||||
|
in the business of distributing software, under which you make payment
|
||||||
|
to the third party based on the extent of your activity of conveying
|
||||||
|
the work, and under which the third party grants, to any of the
|
||||||
|
parties who would receive the covered work from you, a discriminatory
|
||||||
|
patent license (a) in connection with copies of the covered work
|
||||||
|
conveyed by you (or copies made from those copies), or (b) primarily
|
||||||
|
for and in connection with specific products or compilations that
|
||||||
|
contain the covered work, unless you entered into that arrangement,
|
||||||
|
or that patent license was granted, prior to 28 March 2007.
|
||||||
|
|
||||||
|
Nothing in this License shall be construed as excluding or limiting
|
||||||
|
any implied license or other defenses to infringement that may
|
||||||
|
otherwise be available to you under applicable patent law.
|
||||||
|
|
||||||
|
12. No Surrender of Others' Freedom.
|
||||||
|
|
||||||
|
If conditions are imposed on you (whether by court order, agreement or
|
||||||
|
otherwise) that contradict the conditions of this License, they do not
|
||||||
|
excuse you from the conditions of this License. If you cannot convey a
|
||||||
|
covered work so as to satisfy simultaneously your obligations under this
|
||||||
|
License and any other pertinent obligations, then as a consequence you may
|
||||||
|
not convey it at all. For example, if you agree to terms that obligate you
|
||||||
|
to collect a royalty for further conveying from those to whom you convey
|
||||||
|
the Program, the only way you could satisfy both those terms and this
|
||||||
|
License would be to refrain entirely from conveying the Program.
|
||||||
|
|
||||||
|
13. Use with the GNU Affero General Public License.
|
||||||
|
|
||||||
|
Notwithstanding any other provision of this License, you have
|
||||||
|
permission to link or combine any covered work with a work licensed
|
||||||
|
under version 3 of the GNU Affero General Public License into a single
|
||||||
|
combined work, and to convey the resulting work. The terms of this
|
||||||
|
License will continue to apply to the part which is the covered work,
|
||||||
|
but the special requirements of the GNU Affero General Public License,
|
||||||
|
section 13, concerning interaction through a network will apply to the
|
||||||
|
combination as such.
|
||||||
|
|
||||||
|
14. Revised Versions of this License.
|
||||||
|
|
||||||
|
The Free Software Foundation may publish revised and/or new versions of
|
||||||
|
the GNU General Public License from time to time. Such new versions will
|
||||||
|
be similar in spirit to the present version, but may differ in detail to
|
||||||
|
address new problems or concerns.
|
||||||
|
|
||||||
|
Each version is given a distinguishing version number. If the
|
||||||
|
Program specifies that a certain numbered version of the GNU General
|
||||||
|
Public License "or any later version" applies to it, you have the
|
||||||
|
option of following the terms and conditions either of that numbered
|
||||||
|
version or of any later version published by the Free Software
|
||||||
|
Foundation. If the Program does not specify a version number of the
|
||||||
|
GNU General Public License, you may choose any version ever published
|
||||||
|
by the Free Software Foundation.
|
||||||
|
|
||||||
|
If the Program specifies that a proxy can decide which future
|
||||||
|
versions of the GNU General Public License can be used, that proxy's
|
||||||
|
public statement of acceptance of a version permanently authorizes you
|
||||||
|
to choose that version for the Program.
|
||||||
|
|
||||||
|
Later license versions may give you additional or different
|
||||||
|
permissions. However, no additional obligations are imposed on any
|
||||||
|
author or copyright holder as a result of your choosing to follow a
|
||||||
|
later version.
|
||||||
|
|
||||||
|
15. Disclaimer of Warranty.
|
||||||
|
|
||||||
|
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 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
|
||||||
|
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
|
||||||
|
|
||||||
|
16. Limitation of Liability.
|
||||||
|
|
||||||
|
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||||
|
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
|
||||||
|
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.
|
||||||
|
|
||||||
|
17. Interpretation of Sections 15 and 16.
|
||||||
|
|
||||||
|
If the disclaimer of warranty and limitation of liability provided
|
||||||
|
above cannot be given local legal effect according to their terms,
|
||||||
|
reviewing courts shall apply local law that most closely approximates
|
||||||
|
an absolute waiver of all civil liability in connection with the
|
||||||
|
Program, unless a warranty or assumption of liability accompanies a
|
||||||
|
copy of the Program in return for a fee.
|
||||||
|
|
||||||
|
END OF TERMS AND CONDITIONS
|
||||||
|
|
||||||
|
How to Apply These Terms to Your New Programs
|
||||||
|
|
||||||
|
If you develop a new program, and you want it to be of the greatest
|
||||||
|
possible use to the public, the best way to achieve this is to make it
|
||||||
|
free software which everyone can redistribute and change under these terms.
|
||||||
|
|
||||||
|
To do so, attach the following notices to the program. It is safest
|
||||||
|
to attach them to the start of each source file to most effectively
|
||||||
|
state the exclusion of warranty; and each file should have at least
|
||||||
|
the "copyright" line and a pointer to where the full notice is found.
|
||||||
|
|
||||||
|
<one line to give the program's name and a brief idea of what it does.>
|
||||||
|
Copyright (C) <year> <name of author>
|
||||||
|
|
||||||
|
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 3 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, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
Also add information on how to contact you by electronic and paper mail.
|
||||||
|
|
||||||
|
If the program does terminal interaction, make it output a short
|
||||||
|
notice like this when it starts in an interactive mode:
|
||||||
|
|
||||||
|
<program> Copyright (C) <year> <name of author>
|
||||||
|
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||||
|
This is free software, and you are welcome to redistribute it
|
||||||
|
under certain conditions; type `show c' for details.
|
||||||
|
|
||||||
|
The hypothetical commands `show w' and `show c' should show the appropriate
|
||||||
|
parts of the General Public License. Of course, your program's commands
|
||||||
|
might be different; for a GUI interface, you would use an "about box".
|
||||||
|
|
||||||
|
You should also get your employer (if you work as a programmer) or school,
|
||||||
|
if any, to sign a "copyright disclaimer" for the program, if necessary.
|
||||||
|
For more information on this, and how to apply and follow the GNU GPL, see
|
||||||
|
<http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
The GNU General Public License does not permit incorporating your program
|
||||||
|
into proprietary programs. If your program is a subroutine library, you
|
||||||
|
may consider it more useful to permit linking proprietary applications with
|
||||||
|
the library. If this is what you want to do, use the GNU Lesser General
|
||||||
|
Public License instead of this License. But first, please read
|
||||||
|
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
|
|
@ -0,0 +1,5 @@
|
||||||
|
AUTOMAKE_OPTIONS = foreign dist-bzip2 1.6
|
||||||
|
ACLOCAL_AMFLAGS = -I m4
|
||||||
|
|
||||||
|
SUBDIRS = src
|
||||||
|
|
|
@ -0,0 +1,95 @@
|
||||||
|
AC_INIT([uk0-souncard],
|
||||||
|
m4_esyscmd([./git-version-gen .tarball-version]),
|
||||||
|
[jolly@eversberg.eu])
|
||||||
|
|
||||||
|
dnl *This* is the root dir, even if an install-sh exists in ../ or ../../
|
||||||
|
AC_CONFIG_AUX_DIR([.])
|
||||||
|
|
||||||
|
AM_INIT_AUTOMAKE([subdir-objects dist-bzip2])
|
||||||
|
AC_CONFIG_TESTDIR(tests)
|
||||||
|
|
||||||
|
dnl kernel style compile messages
|
||||||
|
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
|
||||||
|
|
||||||
|
dnl include release helper
|
||||||
|
RELMAKE='-include osmo-release.mk'
|
||||||
|
AC_SUBST([RELMAKE])
|
||||||
|
|
||||||
|
dnl checks for programs
|
||||||
|
AC_PROG_MAKE_SET
|
||||||
|
AC_PROG_CC
|
||||||
|
AC_PROG_INSTALL
|
||||||
|
AC_PROG_RANLIB
|
||||||
|
|
||||||
|
AC_CONFIG_MACRO_DIR([m4])
|
||||||
|
|
||||||
|
AC_ARG_ENABLE(sanitize,
|
||||||
|
[AS_HELP_STRING(
|
||||||
|
[--enable-sanitize],
|
||||||
|
[Compile with address sanitizer enabled],
|
||||||
|
)],
|
||||||
|
[sanitize=$enableval], [sanitize="no"])
|
||||||
|
if test x"$sanitize" = x"yes"
|
||||||
|
then
|
||||||
|
CFLAGS="$CFLAGS -fsanitize=address -fsanitize=undefined"
|
||||||
|
CPPFLAGS="$CPPFLAGS -fsanitize=address -fsanitize=undefined"
|
||||||
|
fi
|
||||||
|
|
||||||
|
AC_ARG_ENABLE(werror,
|
||||||
|
[AS_HELP_STRING(
|
||||||
|
[--enable-werror],
|
||||||
|
[Turn all compiler warnings into errors, with exceptions:
|
||||||
|
a) deprecation (allow upstream to mark deprecation without breaking builds);
|
||||||
|
b) "#warning" pragmas (allow to remind ourselves of errors without breaking builds)
|
||||||
|
]
|
||||||
|
)],
|
||||||
|
[werror=$enableval], [werror="no"])
|
||||||
|
if test x"$werror" = x"yes"
|
||||||
|
then
|
||||||
|
WERROR_FLAGS="-Werror"
|
||||||
|
WERROR_FLAGS+=" -Wno-error=deprecated -Wno-error=deprecated-declarations"
|
||||||
|
WERROR_FLAGS+=" -Wno-error=cpp" # "#warning"
|
||||||
|
CFLAGS="$CFLAGS $WERROR_FLAGS"
|
||||||
|
CPPFLAGS="$CPPFLAGS $WERROR_FLAGS"
|
||||||
|
fi
|
||||||
|
|
||||||
|
CFLAGS="$CFLAGS -Wall"
|
||||||
|
CPPFLAGS="$CPPFLAGS -Wall"
|
||||||
|
|
||||||
|
dnl checks for header files
|
||||||
|
AC_HEADER_STDC
|
||||||
|
AC_CHECK_HEADERS(execinfo.h sys/select.h sys/socket.h syslog.h ctype.h)
|
||||||
|
|
||||||
|
# The following test is taken from WebKit's webkit.m4
|
||||||
|
saved_CFLAGS="$CFLAGS"
|
||||||
|
CFLAGS="$CFLAGS -fvisibility=hidden "
|
||||||
|
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
|
||||||
|
AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])],
|
||||||
|
[ AC_MSG_RESULT([yes])
|
||||||
|
SYMBOL_VISIBILITY="-fvisibility=hidden"],
|
||||||
|
AC_MSG_RESULT([no]))
|
||||||
|
CFLAGS="$saved_CFLAGS"
|
||||||
|
AC_SUBST(SYMBOL_VISIBILITY)
|
||||||
|
|
||||||
|
dnl Generate the output
|
||||||
|
AM_CONFIG_HEADER(config.h)
|
||||||
|
|
||||||
|
AC_CHECK_LIB([m], [main])
|
||||||
|
|
||||||
|
AC_ARG_WITH([alsa], [AS_HELP_STRING([--with-alsa], [compile with Alsa driver @<:@default=check@:>@]) ], [], [with_alsa="check"])
|
||||||
|
AS_IF([test "x$with_alsa" != xno], [PKG_CHECK_MODULES(ALSA, alsa >= 1.0, with_alsa=yes, with_alsa=no)])
|
||||||
|
AM_CONDITIONAL(HAVE_ALSA, test "x$with_alsa" == "xyes" )
|
||||||
|
AS_IF([test "x$with_alsa" == "xyes"],[AC_MSG_NOTICE( Compiling with Alsa support )], [AC_MSG_NOTICE( Alsa sound card not supported. Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. )])
|
||||||
|
AM_CONDITIONAL(HAVE_SDR, false )
|
||||||
|
|
||||||
|
AC_OUTPUT(
|
||||||
|
src/liboptions/Makefile
|
||||||
|
src/libdebug/Makefile
|
||||||
|
src/libsample/Makefile
|
||||||
|
src/libfilter/Makefile
|
||||||
|
src/libwave/Makefile
|
||||||
|
src/libdisplay/Makefile
|
||||||
|
src/libsound/Makefile
|
||||||
|
src/uk0/Makefile
|
||||||
|
src/Makefile
|
||||||
|
Makefile)
|
|
@ -0,0 +1,151 @@
|
||||||
|
#!/bin/sh
|
||||||
|
# Print a version string.
|
||||||
|
scriptversion=2010-01-28.01
|
||||||
|
|
||||||
|
# Copyright (C) 2007-2010 Free Software Foundation, Inc.
|
||||||
|
#
|
||||||
|
# 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 3 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, see <http://www.gnu.org/licenses/>.
|
||||||
|
|
||||||
|
# This script is derived from GIT-VERSION-GEN from GIT: http://git.or.cz/.
|
||||||
|
# It may be run two ways:
|
||||||
|
# - from a git repository in which the "git describe" command below
|
||||||
|
# produces useful output (thus requiring at least one signed tag)
|
||||||
|
# - from a non-git-repo directory containing a .tarball-version file, which
|
||||||
|
# presumes this script is invoked like "./git-version-gen .tarball-version".
|
||||||
|
|
||||||
|
# In order to use intra-version strings in your project, you will need two
|
||||||
|
# separate generated version string files:
|
||||||
|
#
|
||||||
|
# .tarball-version - present only in a distribution tarball, and not in
|
||||||
|
# a checked-out repository. Created with contents that were learned at
|
||||||
|
# the last time autoconf was run, and used by git-version-gen. Must not
|
||||||
|
# be present in either $(srcdir) or $(builddir) for git-version-gen to
|
||||||
|
# give accurate answers during normal development with a checked out tree,
|
||||||
|
# but must be present in a tarball when there is no version control system.
|
||||||
|
# Therefore, it cannot be used in any dependencies. GNUmakefile has
|
||||||
|
# hooks to force a reconfigure at distribution time to get the value
|
||||||
|
# correct, without penalizing normal development with extra reconfigures.
|
||||||
|
#
|
||||||
|
# .version - present in a checked-out repository and in a distribution
|
||||||
|
# tarball. Usable in dependencies, particularly for files that don't
|
||||||
|
# want to depend on config.h but do want to track version changes.
|
||||||
|
# Delete this file prior to any autoconf run where you want to rebuild
|
||||||
|
# files to pick up a version string change; and leave it stale to
|
||||||
|
# minimize rebuild time after unrelated changes to configure sources.
|
||||||
|
#
|
||||||
|
# It is probably wise to add these two files to .gitignore, so that you
|
||||||
|
# don't accidentally commit either generated file.
|
||||||
|
#
|
||||||
|
# Use the following line in your configure.ac, so that $(VERSION) will
|
||||||
|
# automatically be up-to-date each time configure is run (and note that
|
||||||
|
# since configure.ac no longer includes a version string, Makefile rules
|
||||||
|
# should not depend on configure.ac for version updates).
|
||||||
|
#
|
||||||
|
# AC_INIT([GNU project],
|
||||||
|
# m4_esyscmd([build-aux/git-version-gen .tarball-version]),
|
||||||
|
# [bug-project@example])
|
||||||
|
#
|
||||||
|
# Then use the following lines in your Makefile.am, so that .version
|
||||||
|
# will be present for dependencies, and so that .tarball-version will
|
||||||
|
# exist in distribution tarballs.
|
||||||
|
#
|
||||||
|
# BUILT_SOURCES = $(top_srcdir)/.version
|
||||||
|
# $(top_srcdir)/.version:
|
||||||
|
# echo $(VERSION) > $@-t && mv $@-t $@
|
||||||
|
# dist-hook:
|
||||||
|
# echo $(VERSION) > $(distdir)/.tarball-version
|
||||||
|
|
||||||
|
case $# in
|
||||||
|
1) ;;
|
||||||
|
*) echo 1>&2 "Usage: $0 \$srcdir/.tarball-version"; exit 1;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
tarball_version_file=$1
|
||||||
|
nl='
|
||||||
|
'
|
||||||
|
|
||||||
|
# First see if there is a tarball-only version file.
|
||||||
|
# then try "git describe", then default.
|
||||||
|
if test -f $tarball_version_file
|
||||||
|
then
|
||||||
|
v=`cat $tarball_version_file` || exit 1
|
||||||
|
case $v in
|
||||||
|
*$nl*) v= ;; # reject multi-line output
|
||||||
|
[0-9]*) ;;
|
||||||
|
*) v= ;;
|
||||||
|
esac
|
||||||
|
test -z "$v" \
|
||||||
|
&& echo "$0: WARNING: $tarball_version_file seems to be damaged" 1>&2
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test -n "$v"
|
||||||
|
then
|
||||||
|
: # use $v
|
||||||
|
elif
|
||||||
|
v=`git describe --abbrev=4 --match='v*' HEAD 2>/dev/null \
|
||||||
|
|| git describe --abbrev=4 HEAD 2>/dev/null` \
|
||||||
|
&& case $v in
|
||||||
|
[0-9]*) ;;
|
||||||
|
v[0-9]*) ;;
|
||||||
|
*) (exit 1) ;;
|
||||||
|
esac
|
||||||
|
then
|
||||||
|
# Is this a new git that lists number of commits since the last
|
||||||
|
# tag or the previous older version that did not?
|
||||||
|
# Newer: v6.10-77-g0f8faeb
|
||||||
|
# Older: v6.10-g0f8faeb
|
||||||
|
case $v in
|
||||||
|
*-*-*) : git describe is okay three part flavor ;;
|
||||||
|
*-*)
|
||||||
|
: git describe is older two part flavor
|
||||||
|
# Recreate the number of commits and rewrite such that the
|
||||||
|
# result is the same as if we were using the newer version
|
||||||
|
# of git describe.
|
||||||
|
vtag=`echo "$v" | sed 's/-.*//'`
|
||||||
|
numcommits=`git rev-list "$vtag"..HEAD | wc -l`
|
||||||
|
v=`echo "$v" | sed "s/\(.*\)-\(.*\)/\1-$numcommits-\2/"`;
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Change the first '-' to a '.', so version-comparing tools work properly.
|
||||||
|
# Remove the "g" in git describe's output string, to save a byte.
|
||||||
|
v=`echo "$v" | sed 's/-/./;s/\(.*\)-g/\1-/'`;
|
||||||
|
else
|
||||||
|
v=UNKNOWN
|
||||||
|
fi
|
||||||
|
|
||||||
|
v=`echo "$v" |sed 's/^v//'`
|
||||||
|
|
||||||
|
# Don't declare a version "dirty" merely because a time stamp has changed.
|
||||||
|
git status > /dev/null 2>&1
|
||||||
|
|
||||||
|
dirty=`sh -c 'git diff-index --name-only HEAD' 2>/dev/null` || dirty=
|
||||||
|
case "$dirty" in
|
||||||
|
'') ;;
|
||||||
|
*) # Append the suffix only if there isn't one already.
|
||||||
|
case $v in
|
||||||
|
*-dirty) ;;
|
||||||
|
*) v="$v-dirty" ;;
|
||||||
|
esac ;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Omit the trailing newline, so that m4_esyscmd can use the result directly.
|
||||||
|
echo "$v" | tr -d '\012'
|
||||||
|
|
||||||
|
# Local variables:
|
||||||
|
# eval: (add-hook 'write-file-hooks 'time-stamp)
|
||||||
|
# time-stamp-start: "scriptversion="
|
||||||
|
# time-stamp-format: "%:y-%02m-%02d.%02H"
|
||||||
|
# time-stamp-end: "$"
|
||||||
|
# End:
|
|
@ -0,0 +1,18 @@
|
||||||
|
AUTOMAKE_OPTIONS = foreign
|
||||||
|
|
||||||
|
SUBDIRS = \
|
||||||
|
liboptions \
|
||||||
|
libdebug \
|
||||||
|
libsample \
|
||||||
|
libfilter \
|
||||||
|
libwave \
|
||||||
|
libdisplay
|
||||||
|
|
||||||
|
if HAVE_ALSA
|
||||||
|
SUBDIRS += \
|
||||||
|
libsound
|
||||||
|
endif
|
||||||
|
|
||||||
|
SUBDIRS += \
|
||||||
|
uk0
|
||||||
|
|
|
@ -0,0 +1,30 @@
|
||||||
|
AM_CPPFLAGS = -Wall -Wextra -g $(all_includes)
|
||||||
|
|
||||||
|
bin_PROGRAMS = \
|
||||||
|
uk0-soundcard
|
||||||
|
|
||||||
|
uk0_soundcard_SOURCES = \
|
||||||
|
uk0.c \
|
||||||
|
hdlc.c \
|
||||||
|
ph_socket.c \
|
||||||
|
main.c
|
||||||
|
|
||||||
|
uk0_soundcard_LDADD = \
|
||||||
|
$(COMMON_LA) \
|
||||||
|
../libdebug/libdebug.a \
|
||||||
|
../liboptions/liboptions.a \
|
||||||
|
../libsample/libsample.a \
|
||||||
|
../libfilter/libfilter.a \
|
||||||
|
../libdisplay/libdisplay.a \
|
||||||
|
../libwave/libwave.a
|
||||||
|
|
||||||
|
if HAVE_ALSA
|
||||||
|
uk0_soundcard_LDADD += \
|
||||||
|
../libsound/libsound.a \
|
||||||
|
$(ALSA_LIBS)
|
||||||
|
endif
|
||||||
|
|
||||||
|
if HAVE_ALSA
|
||||||
|
AM_CPPFLAGS += -DHAVE_ALSA
|
||||||
|
endif
|
||||||
|
|
|
@ -0,0 +1,380 @@
|
||||||
|
/* HDLC
|
||||||
|
*
|
||||||
|
* (C) 2022 by Andreas Eversberg <jolly@eversberg.eu>
|
||||||
|
* All Rights Reserved
|
||||||
|
*
|
||||||
|
* 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 3 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, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <errno.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include "../libdebug/debug.h"
|
||||||
|
#include "uk0.h"
|
||||||
|
|
||||||
|
//#define DEBUG_HDLC
|
||||||
|
|
||||||
|
/* calculate CRC from the bits of label and data and 16 zeroes.
|
||||||
|
* the result is the remainder of the polynomial division and
|
||||||
|
* conforms to HDLC/X25/ISDN standard.
|
||||||
|
*/
|
||||||
|
static uint16_t crc16(uint8_t *data, int length)
|
||||||
|
{
|
||||||
|
uint16_t generator = 0x8408;
|
||||||
|
uint16_t crc = 0xffff; /* init crc register with 1 */
|
||||||
|
int i, j;
|
||||||
|
|
||||||
|
for (i = 0; i < length; i++) {
|
||||||
|
for (j = 0; j < 8; j++) {
|
||||||
|
if (((data[i]>>j) & 1) != (crc & 1)) {
|
||||||
|
crc = crc >> 1;
|
||||||
|
crc = crc ^ generator;
|
||||||
|
} else
|
||||||
|
crc = crc >> 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return crc ^ 0xffff;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* TX
|
||||||
|
*/
|
||||||
|
|
||||||
|
void hdlc_tx_init(hdlc_tx_t *tx, struct uk0 *uk0, int channel, enum hdlc_mode mode)
|
||||||
|
{
|
||||||
|
memset(tx, 0, sizeof(*tx));
|
||||||
|
tx->uk0 = uk0;
|
||||||
|
tx->channel = channel;
|
||||||
|
tx->mode = mode;
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline int tx_bit(hdlc_tx_t *tx, uint8_t *bit)
|
||||||
|
{
|
||||||
|
int subsequent = 0;
|
||||||
|
|
||||||
|
if (tx->state == HDLC_STATE_IDLE) {
|
||||||
|
/* when index is set, we just had a frame, so we can use end flag as start flag */
|
||||||
|
if (tx->index)
|
||||||
|
subsequent = 1;
|
||||||
|
tx->length = uk0_tx_dequeue(tx->uk0, tx->channel, tx->buffer, sizeof(tx->buffer));
|
||||||
|
tx->index = 0;
|
||||||
|
if (!tx->length)
|
||||||
|
return -1; /* no more data */
|
||||||
|
tx->crc = crc16(tx->buffer, tx->length);
|
||||||
|
if (subsequent) {
|
||||||
|
tx->state = HDLC_STATE_TX_DATA;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("subsequent frame, continue with data.\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
tx->state = HDLC_STATE_TX_START_FLAG;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("new frame after pause, continue with flag.\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
tx->bits = 0;
|
||||||
|
tx->frame = 0x00;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (tx->state) {
|
||||||
|
case HDLC_STATE_TX_START_FLAG:
|
||||||
|
*bit = (0x7e >> tx->bits) & 1;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("transmit bit: %d\n", *bit);
|
||||||
|
#endif
|
||||||
|
if (++tx->bits == 8) {
|
||||||
|
tx->bits = 0;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("flag sent, continue with data.\n");
|
||||||
|
#endif
|
||||||
|
tx->state = HDLC_STATE_TX_DATA;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case HDLC_STATE_TX_DATA:
|
||||||
|
if ((tx->frame & 0x1f) == 0x1f) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("insert stuffing bit.\n");
|
||||||
|
#endif
|
||||||
|
*bit = 0;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("transmit bit: %d\n", *bit);
|
||||||
|
#endif
|
||||||
|
tx->frame <<= 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
*bit = (tx->buffer[tx->index] >> tx->bits) & 1;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("transmit bit: %d\n", *bit);
|
||||||
|
#endif
|
||||||
|
tx->frame <<= 1;
|
||||||
|
tx->frame |= *bit;
|
||||||
|
if (++tx->bits == 8) {
|
||||||
|
tx->bits = 0;
|
||||||
|
if (++tx->index == tx->length) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("data complete, continue with crc.\n");
|
||||||
|
#endif
|
||||||
|
tx->state = HDLC_STATE_TX_CRC;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case HDLC_STATE_TX_CRC:
|
||||||
|
if ((tx->frame & 0x1f) == 0x1f) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("insert stuffing bit.\n");
|
||||||
|
#endif
|
||||||
|
*bit = 0;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("transmit bit: %d\n", *bit);
|
||||||
|
#endif
|
||||||
|
tx->frame <<= 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
*bit = (tx->crc >> tx->bits) & 1;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("transmit bit: %d\n", *bit);
|
||||||
|
#endif
|
||||||
|
tx->frame <<= 1;
|
||||||
|
tx->frame |= *bit;
|
||||||
|
if (++tx->bits == 16) {
|
||||||
|
tx->bits = 0;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("data complete, continue with end flag.\n");
|
||||||
|
#endif
|
||||||
|
tx->state = HDLC_STATE_TX_END_FLAG;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case HDLC_STATE_TX_END_FLAG:
|
||||||
|
*bit = (0x7e >> tx->bits) & 1;
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("transmit bit: %d\n", *bit);
|
||||||
|
#endif
|
||||||
|
if (++tx->bits == 8) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("end flag complete, enter idle state for next frame.\n");
|
||||||
|
#endif
|
||||||
|
tx->state = HDLC_STATE_IDLE;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -1; /* should never happen */
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* data requested from uk0 coming from tx_queue */
|
||||||
|
void uk0_send(uk0_t *uk0, int ch, uint8_t *data, int length)
|
||||||
|
{
|
||||||
|
hdlc_tx_t *tx;
|
||||||
|
int i, j, rc;
|
||||||
|
uint8_t bit;
|
||||||
|
|
||||||
|
if (ch < 1 || ch > 3) {
|
||||||
|
fprintf(stderr, "%s: illegal channel number %d!\n", __func__, ch);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
tx = &uk0->hdlc_tx[ch - 1];
|
||||||
|
|
||||||
|
/* disabled -> transparent */
|
||||||
|
switch (tx->mode) {
|
||||||
|
case HDLC_MODE_OFF:
|
||||||
|
memset(data, 0xff, length);
|
||||||
|
break;
|
||||||
|
case HDLC_MODE_TRANS:
|
||||||
|
while (length) {
|
||||||
|
if (tx->index == tx->length) {
|
||||||
|
tx->length = uk0_tx_dequeue(tx->uk0, tx->channel, tx->buffer, sizeof(tx->buffer));
|
||||||
|
tx->index = 0;
|
||||||
|
}
|
||||||
|
if (!tx->length) {
|
||||||
|
memset(data, 0xff, length);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
while (length && tx->index < tx->length) {
|
||||||
|
*data++ = tx->buffer[tx->index];
|
||||||
|
tx->index++;
|
||||||
|
length--;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case HDLC_MODE_HDLC:
|
||||||
|
for (i = 0; i < length; i++) {
|
||||||
|
for (j = 0; j < 8; j++) {
|
||||||
|
rc = tx_bit(tx, &bit);
|
||||||
|
/* rc is set, if no more HDLC frames */
|
||||||
|
if (rc)
|
||||||
|
break;
|
||||||
|
data[i] = (data[i] >> 1) | (bit << 7);
|
||||||
|
}
|
||||||
|
/* fill up byte, if no more HDLC frames */
|
||||||
|
if (j < 8) {
|
||||||
|
data[i] = (data[i] >> (8 - j)) | (0xff << j);
|
||||||
|
i++;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
/* fill up remaining data with 0xff, if no more HDLC frames */
|
||||||
|
if (i < length)
|
||||||
|
memset(data + i , 0xff, length - i);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* RX
|
||||||
|
*/
|
||||||
|
|
||||||
|
void hdlc_rx_init(hdlc_rx_t *rx, struct uk0 *uk0, int channel, enum hdlc_mode mode)
|
||||||
|
{
|
||||||
|
memset(rx, 0, sizeof(*rx));
|
||||||
|
rx->uk0 = uk0;
|
||||||
|
rx->channel = channel;
|
||||||
|
rx->mode = mode;
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline void rx_frame(hdlc_rx_t *rx, uint8_t *data, int length)
|
||||||
|
{
|
||||||
|
uint16_t crc;
|
||||||
|
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
int i;
|
||||||
|
printf("frame:");
|
||||||
|
for (i = 0; i < length; i++) {
|
||||||
|
printf(" %02x", data[i]);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
crc = crc16(data, length - 2);
|
||||||
|
if (data[length - 2] == (crc & 0xff) && data[length - 1] == (crc >> 8)) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf(" crc ok.\n");
|
||||||
|
#endif
|
||||||
|
ph_socket_tx_msg(&rx->uk0->ph_socket, rx->channel, PH_PRIM_DATA_IND, data, length - 2);
|
||||||
|
} else {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf(" crc error!\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static inline void rx_bit(hdlc_rx_t *rx, uint8_t bit)
|
||||||
|
{
|
||||||
|
rx->frame <<= 1;
|
||||||
|
rx->frame |= bit;
|
||||||
|
|
||||||
|
switch (rx->state) {
|
||||||
|
case HDLC_STATE_IDLE:
|
||||||
|
if (rx->frame == 0x7e) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("received start flag.\n");
|
||||||
|
#endif
|
||||||
|
rx->state = HDLC_STATE_RX_FRAME;
|
||||||
|
rx->index = 0;
|
||||||
|
rx->bits = 0;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case HDLC_STATE_RX_FRAME:
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("received bit: %d\n", bit);
|
||||||
|
#endif
|
||||||
|
/* remove stuffed 0-bit after 5 1-bits */
|
||||||
|
if ((rx->frame & 0x7f) == 0x3e) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("omit stuffed 0-bit.\n");
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if ((rx->frame & 0x7f) == 0x7f) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("received frame abort!\n");
|
||||||
|
#endif
|
||||||
|
rx->state = HDLC_STATE_IDLE;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if ((rx->frame & 0x7f) == 0x3f) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("received 6 1-bits.\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
rx->buffer[rx->index] >>= 1;
|
||||||
|
rx->buffer[rx->index] |= (bit << 7);
|
||||||
|
if (++rx->bits == 8) {
|
||||||
|
rx->bits = 0;
|
||||||
|
rx->index++;
|
||||||
|
if (rx->index == sizeof(rx->buffer)) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("HDLC overflow!\n");
|
||||||
|
#endif
|
||||||
|
rx->state = HDLC_STATE_IDLE;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (rx->frame == 0x7e) {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("received end flag.\n");
|
||||||
|
#endif
|
||||||
|
if (rx->bits == 0) {
|
||||||
|
/* remove flag from buffer by substracting 1 from index */
|
||||||
|
if (rx->index > 3)
|
||||||
|
rx_frame(rx, rx->buffer, rx->index - 1);
|
||||||
|
} else {
|
||||||
|
#ifdef DEBUG_HDLC
|
||||||
|
printf("received frame does not end on byte boundary!\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
rx->index = 0;
|
||||||
|
rx->bits = 0;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
break; /* should never happen */
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* data from interface going through HDLC to socket */
|
||||||
|
void uk0_receive(uk0_t *uk0, int ch, uint8_t *data, int length)
|
||||||
|
{
|
||||||
|
hdlc_rx_t *rx;
|
||||||
|
int i, j;
|
||||||
|
uint8_t bit;
|
||||||
|
|
||||||
|
if (ch < 1 || ch > 3) {
|
||||||
|
fprintf(stderr, "%s: illegal channel number %d!\n", __func__, ch);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
rx = &uk0->hdlc_rx[ch - 1];
|
||||||
|
|
||||||
|
/* disabled -> transparent */
|
||||||
|
switch (rx->mode) {
|
||||||
|
case HDLC_MODE_OFF:
|
||||||
|
break;
|
||||||
|
case HDLC_MODE_TRANS:
|
||||||
|
ph_socket_tx_msg(&rx->uk0->ph_socket, rx->channel, PH_PRIM_DATA_IND, data, length);
|
||||||
|
break;
|
||||||
|
case HDLC_MODE_HDLC:
|
||||||
|
for (i = 0; i < length; i++) {
|
||||||
|
for (j = 0; j < 8; j++) {
|
||||||
|
bit = (data[i] >> j) & 1;
|
||||||
|
rx_bit(rx, bit);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
|
@ -0,0 +1,42 @@
|
||||||
|
|
||||||
|
enum hdlc_mode {
|
||||||
|
HDLC_MODE_OFF = 0,
|
||||||
|
HDLC_MODE_TRANS,
|
||||||
|
HDLC_MODE_HDLC,
|
||||||
|
};
|
||||||
|
|
||||||
|
enum hdlc_state {
|
||||||
|
HDLC_STATE_IDLE = 0, /* wait for flag / no data */
|
||||||
|
HDLC_STATE_RX_FRAME, /* receive frame */
|
||||||
|
HDLC_STATE_TX_START_FLAG,/* transmit flag */
|
||||||
|
HDLC_STATE_TX_DATA, /* transmit data */
|
||||||
|
HDLC_STATE_TX_CRC, /* transmit crc */
|
||||||
|
HDLC_STATE_TX_END_FLAG, /* transmit flag */
|
||||||
|
};
|
||||||
|
|
||||||
|
struct uk0;
|
||||||
|
|
||||||
|
typedef struct hdlc_tx {
|
||||||
|
struct uk0 *uk0;
|
||||||
|
int channel;
|
||||||
|
enum hdlc_mode mode;
|
||||||
|
enum hdlc_state state; /* current frame state */
|
||||||
|
uint8_t frame; /* shit register to detect framing and stuffing */
|
||||||
|
uint8_t buffer[65536];
|
||||||
|
uint16_t crc;
|
||||||
|
int length, index, bits;
|
||||||
|
} hdlc_tx_t;
|
||||||
|
|
||||||
|
typedef struct hdlc_rx {
|
||||||
|
struct uk0 *uk0;
|
||||||
|
int channel;
|
||||||
|
enum hdlc_mode mode;
|
||||||
|
enum hdlc_state state; /* current frame state */
|
||||||
|
uint8_t frame; /* shit register to detect framing and stuffing */
|
||||||
|
uint8_t buffer[65537]; /* one more, because it contains end flag */
|
||||||
|
int index, bits;
|
||||||
|
} hdlc_rx_t;
|
||||||
|
|
||||||
|
void hdlc_tx_init(hdlc_tx_t *tx, struct uk0 *uk0, int channel, enum hdlc_mode mode);
|
||||||
|
void hdlc_rx_init(hdlc_rx_t *rx, struct uk0 *uk0, int channel, enum hdlc_mode mode);
|
||||||
|
|
|
@ -0,0 +1,442 @@
|
||||||
|
/* UK0 via sound card (main)
|
||||||
|
*
|
||||||
|
* (C) 2022 by Andreas Eversberg <jolly@eversberg.eu>
|
||||||
|
* All Rights Reserved
|
||||||
|
*
|
||||||
|
* 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 3 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, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <errno.h>
|
||||||
|
#include <signal.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <termios.h>
|
||||||
|
#include <time.h>
|
||||||
|
#include "../libdebug/debug.h"
|
||||||
|
#include "../liboptions/options.h"
|
||||||
|
#include "../libsample/sample.h"
|
||||||
|
#include "../libsound/sound.h"
|
||||||
|
#include "uk0.h"
|
||||||
|
|
||||||
|
uk0_t *uk0[2] = { NULL, NULL };
|
||||||
|
int num_kanal = 1;
|
||||||
|
|
||||||
|
void *soundif = NULL;
|
||||||
|
const char *dsp_device = "";
|
||||||
|
int dsp_samplerate = 192000;
|
||||||
|
int dsp_buffer = 50;
|
||||||
|
const char *uk0_socket[2] = { "/tmp/uk0", NULL };
|
||||||
|
int num_uk0_socket = 0;
|
||||||
|
static int keyboard_control = 0;
|
||||||
|
static int dsp_interval = 1; /* ms */
|
||||||
|
|
||||||
|
static void print_usage(const char *app)
|
||||||
|
{
|
||||||
|
printf("Usage: %s [-a hw:0,0] [<options>]\n", app);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void print_help()
|
||||||
|
{
|
||||||
|
/* - - */
|
||||||
|
printf(" -h --help\n");
|
||||||
|
printf(" This help\n");
|
||||||
|
printf(" --config [~/]<path to config file>\n");
|
||||||
|
printf(" Give a config file to use. If it starts with '~/', path is at home dir.\n");
|
||||||
|
printf(" Each line in config file is one option, '-' or '--' must not be given!\n");
|
||||||
|
debug_print_help();
|
||||||
|
printf(" -a --audio-device hw:<card>,<device>\n");
|
||||||
|
printf(" Sound card and device number (default = '%s')\n", dsp_device);
|
||||||
|
printf(" -s --samplerate <rate>\n");
|
||||||
|
printf(" Sample rate of sound device (default = '%d')\n", dsp_samplerate);
|
||||||
|
printf(" -b --buffer <ms>\n");
|
||||||
|
printf(" How many milliseconds are processed in advance (default = '%d')\n", dsp_buffer);
|
||||||
|
printf(" A buffer below 10 ms requires low interval like 0.1 ms.\n");
|
||||||
|
printf(" -U --uk0-socket <filename>\n");
|
||||||
|
printf(" Name to socket file. Allows an application to connect to layer 1.\n");
|
||||||
|
printf(" (default = '%s')\n", uk0_socket[0]);
|
||||||
|
printf(" To provide two interfaces with stereo audio, give two UK0 sockets:\n");
|
||||||
|
printf(" -U <left> -U <right>\n");
|
||||||
|
printf(" -C --control\n");
|
||||||
|
printf(" Use keyboard to control activation/deactivation/loopback for testing.\n");
|
||||||
|
printf("\n");
|
||||||
|
printf("Press 'w' key to toggle display of RX wave form.\n");
|
||||||
|
printf("Press 'm' key to toggle display of measurement values.\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void add_options(void)
|
||||||
|
{
|
||||||
|
option_add('h', "help", 0);
|
||||||
|
option_add('v', "verbose", 1);
|
||||||
|
option_add('a', "audio-device", 1);
|
||||||
|
option_add('s', "samplerate", 1);
|
||||||
|
option_add('b', "buffer", 1);
|
||||||
|
option_add('U', "uk0-socket", 1);
|
||||||
|
option_add('C', "control", 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int handle_options(int short_option, int argi, char **argv)
|
||||||
|
{
|
||||||
|
int rc;
|
||||||
|
|
||||||
|
switch (short_option) {
|
||||||
|
case 'h':
|
||||||
|
print_usage(argv[0]);
|
||||||
|
print_help();
|
||||||
|
return 0;
|
||||||
|
case 'v':
|
||||||
|
if (!strcasecmp(argv[argi], "list")) {
|
||||||
|
debug_list_cat();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
rc = parse_debug_opt(argv[argi]);
|
||||||
|
if (rc < 0) {
|
||||||
|
fprintf(stderr, "Failed to parse debug option, please use -h for help.\n");
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case 'a':
|
||||||
|
dsp_device = options_strdup(argv[argi]);
|
||||||
|
break;
|
||||||
|
case 's':
|
||||||
|
dsp_samplerate = atoi(argv[argi]);
|
||||||
|
break;
|
||||||
|
case 'b':
|
||||||
|
dsp_buffer = atoi(argv[argi]);
|
||||||
|
break;
|
||||||
|
case 'U':
|
||||||
|
if (num_uk0_socket == 2) {
|
||||||
|
fprintf(stderr, "Cannot provide more than two interfaces. Stereo audio allows just two interfaces.\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
uk0_socket[num_uk0_socket++] = options_strdup(argv[argi]);
|
||||||
|
num_kanal = num_uk0_socket;
|
||||||
|
break;
|
||||||
|
case 'C':
|
||||||
|
keyboard_control = 1;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int quit = 0;
|
||||||
|
static void sighandler(int sigset)
|
||||||
|
{
|
||||||
|
if (sigset == SIGHUP || sigset == SIGPIPE)
|
||||||
|
return;
|
||||||
|
|
||||||
|
fprintf(stderr, "\nSignal %d received.\n", sigset);
|
||||||
|
|
||||||
|
quit = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int get_char()
|
||||||
|
{
|
||||||
|
struct timeval tv = {0, 0};
|
||||||
|
fd_set fds;
|
||||||
|
char c = 0;
|
||||||
|
int __attribute__((__unused__)) rc;
|
||||||
|
|
||||||
|
FD_ZERO(&fds);
|
||||||
|
FD_SET(0, &fds);
|
||||||
|
select(0+1, &fds, NULL, NULL, &tv);
|
||||||
|
if (FD_ISSET(0, &fds)) {
|
||||||
|
rc = read(0, &c, 1);
|
||||||
|
return c;
|
||||||
|
} else
|
||||||
|
return -1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* not static, in case we add libtimer some day, then compiler hits an error */
|
||||||
|
double get_time(void)
|
||||||
|
{
|
||||||
|
static struct timespec tv;
|
||||||
|
|
||||||
|
clock_gettime(CLOCK_REALTIME, &tv);
|
||||||
|
|
||||||
|
return (double)tv.tv_sec + (double)tv.tv_nsec / 1000000000.0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void help_keyboard(void)
|
||||||
|
{
|
||||||
|
printf("Use keyboard to control interface:\n");
|
||||||
|
printf(" 'e' = enable interface (do this first!)\n");
|
||||||
|
printf(" 'd' = disable interface\n");
|
||||||
|
printf(" '1' = activate interface (LT side activation)\n");
|
||||||
|
printf(" '0' = deactivate interface\n");
|
||||||
|
printf(" 'l' = toggle loopback 2 mode\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
static void process_keyboard(uk0_t *uk0, char c)
|
||||||
|
{
|
||||||
|
switch (c) {
|
||||||
|
case 'e':
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Keyboard enables interface.\n");
|
||||||
|
if (uk0->state != UK0_STATE_NULL) {
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Interface is already enabled!\n");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
uk0_handle_event(uk0, UK0_EVENT_ENABLE);
|
||||||
|
break;
|
||||||
|
case 'd':
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Keyboard disables interface.\n");
|
||||||
|
if (uk0->state == UK0_STATE_NULL) {
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Interface is already disabled!\n");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
uk0_handle_event(uk0, UK0_EVENT_DISABLE);
|
||||||
|
break;
|
||||||
|
case '1':
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Keyboard activates interface.\n");
|
||||||
|
if (uk0->state == UK0_STATE_NULL) {
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Cannot activate interface, enable first!\n");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
uk0_handle_event(uk0, UK0_EVENT_ACTIVATE);
|
||||||
|
break;
|
||||||
|
case '0':
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Keyboard deactivates interface.\n");
|
||||||
|
if (uk0->state == UK0_STATE_NULL) {
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Cannot deactivate interface, it is disabled!\n");
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
uk0_handle_event(uk0, UK0_EVENT_DEACTIVATE);
|
||||||
|
break;
|
||||||
|
case 'l':
|
||||||
|
uk0->loopback2 ^= 1;
|
||||||
|
if (uk0->loopback2)
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Keyboard activates loopback 2.\n");
|
||||||
|
else
|
||||||
|
PDEBUG(DUK0, DEBUG_NOTICE, "Keyboard deactivates loopback 2.\n");
|
||||||
|
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int soundif_open(const char *audiodev, int samplerate, int buffer_size)
|
||||||
|
{
|
||||||
|
if (!audiodev || !audiodev[0]) {
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "No audio device given!\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* open audiodev */
|
||||||
|
#ifdef HAVE_ALSA
|
||||||
|
soundif = sound_open(audiodev, NULL, NULL, NULL, num_kanal, 0.0, samplerate, buffer_size, 1.0, 1.0, 0.0, 2.0);
|
||||||
|
if (!soundif) {
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "Failed to open sound device!\n");
|
||||||
|
return -EIO;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "No audio device is compiled in! Cannot use UK0 interface.\n");
|
||||||
|
return -EINVAL;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void soundif_start(void)
|
||||||
|
{
|
||||||
|
#ifdef HAVE_ALSA
|
||||||
|
sound_start(soundif);
|
||||||
|
PDEBUG(DUK0, DEBUG_DEBUG, "Starting audio stream!\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
void soundif_close(void)
|
||||||
|
{
|
||||||
|
#ifdef HAVE_ALSA
|
||||||
|
/* close audiodev */
|
||||||
|
if (soundif) {
|
||||||
|
sound_close(soundif);
|
||||||
|
soundif = NULL;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
void soundif_work(int buffer_size)
|
||||||
|
{
|
||||||
|
#ifdef HAVE_ALSA
|
||||||
|
int count, i;
|
||||||
|
sample_t buff[num_kanal][buffer_size], *samples[num_kanal];
|
||||||
|
double rf_level_db[num_kanal];
|
||||||
|
for (i = 0; i < num_kanal; i++)
|
||||||
|
samples[i] = buff[i];
|
||||||
|
int rc;
|
||||||
|
|
||||||
|
/* encode */
|
||||||
|
count = sound_get_tosend(soundif, buffer_size);
|
||||||
|
if (count < 0) {
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "Failed to get number of samples in buffer (rc = %d)!\n", count);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
if (count) {
|
||||||
|
for (i = 0; i < num_kanal; i++)
|
||||||
|
uk0_encode_mms43(uk0[i], samples[i], count);
|
||||||
|
rc = sound_write(soundif, samples, NULL, count, NULL, NULL, num_kanal);
|
||||||
|
if (rc < 0) {
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "Failed to write TX data to audio device (rc = %d)\n", rc);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* decode */
|
||||||
|
count = sound_read(soundif, samples, buffer_size, num_kanal, rf_level_db);
|
||||||
|
if (count < 0) {
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "Failed to read from audio device (rc = %d)!\n", count);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
for (i = 0; i < num_kanal; i++)
|
||||||
|
uk0_decode_mms43(uk0[i], samples[i], count);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char *argv[])
|
||||||
|
{
|
||||||
|
int argi, rc;
|
||||||
|
int buffer_size;
|
||||||
|
struct termios term, term_orig;
|
||||||
|
double begin_time, now, sleep;
|
||||||
|
int i, j;
|
||||||
|
char c;
|
||||||
|
|
||||||
|
|
||||||
|
uk0_init();
|
||||||
|
|
||||||
|
/* handle options / config file */
|
||||||
|
add_options();
|
||||||
|
rc = options_config_file(argc, argv, "~/.osmocom/uk0/uk0.conf", handle_options);
|
||||||
|
if (rc < 0)
|
||||||
|
return 0;
|
||||||
|
argi = options_command_line(argc, argv, handle_options);
|
||||||
|
if (argi <= 0)
|
||||||
|
return argi;
|
||||||
|
|
||||||
|
if (keyboard_control && num_kanal != 1) {
|
||||||
|
PDEBUG(DUK0, DEBUG_ERROR, "Keyboard control works only, if a single UK0 interface was selected.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* size of dsp buffer in samples */
|
||||||
|
buffer_size = dsp_samplerate * dsp_buffer / 1000;
|
||||||
|
|
||||||
|
rc = soundif_open(dsp_device, dsp_samplerate, buffer_size);
|
||||||
|
if (rc < 0) {
|
||||||
|
printf("Failed to open UK0 device, use '-h' for help.\n");
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* create and init UK0 instances */
|
||||||
|
for (i = 0; i < num_kanal; i++) {
|
||||||
|
uk0[i] = uk0_create(uk0_socket[i], dsp_samplerate, buffer_size);
|
||||||
|
if (!uk0[i])
|
||||||
|
goto error;
|
||||||
|
for (j = 0; j < 3; j++) {
|
||||||
|
hdlc_tx_init(&uk0[i]->hdlc_tx[j], uk0[i], j + 1, HDLC_MODE_OFF);
|
||||||
|
hdlc_rx_init(&uk0[i]->hdlc_rx[j], uk0[i], j + 1, HDLC_MODE_OFF);
|
||||||
|
}
|
||||||
|
ph_socket_init(&uk0[i]->ph_socket, uk0[i], uk0_socket[i], 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (keyboard_control)
|
||||||
|
help_keyboard();
|
||||||
|
|
||||||
|
/* prepare terminal */
|
||||||
|
tcgetattr(0, &term_orig);
|
||||||
|
term = term_orig;
|
||||||
|
term.c_lflag &= ~(ISIG|ICANON|ECHO);
|
||||||
|
term.c_cc[VMIN]=1;
|
||||||
|
term.c_cc[VTIME]=2;
|
||||||
|
tcsetattr(0, TCSANOW, &term);
|
||||||
|
|
||||||
|
signal(SIGINT, sighandler);
|
||||||
|
signal(SIGHUP, sighandler);
|
||||||
|
signal(SIGTERM, sighandler);
|
||||||
|
signal(SIGPIPE, sighandler);
|
||||||
|
|
||||||
|
soundif_start();
|
||||||
|
|
||||||
|
while (!quit) {
|
||||||
|
int w;
|
||||||
|
|
||||||
|
begin_time = get_time();
|
||||||
|
|
||||||
|
soundif_work(buffer_size);
|
||||||
|
for (i = 0; i < num_kanal; i++) {
|
||||||
|
do {
|
||||||
|
w = 0;
|
||||||
|
w |= ph_socket_work(&uk0[i]->ph_socket);
|
||||||
|
} while (w);
|
||||||
|
}
|
||||||
|
|
||||||
|
c = get_char();
|
||||||
|
switch (c) {
|
||||||
|
case 3:
|
||||||
|
printf("CTRL+c received, quitting!\n");
|
||||||
|
quit = 1;
|
||||||
|
break;
|
||||||
|
case 'w':
|
||||||
|
/* toggle wave display */
|
||||||
|
display_measurements_on(0);
|
||||||
|
display_wave_on(-1);
|
||||||
|
break;
|
||||||
|
case 'm':
|
||||||
|
/* toggle measurements display */
|
||||||
|
display_wave_on(0);
|
||||||
|
display_measurements_on(-1);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
if (keyboard_control)
|
||||||
|
process_keyboard(uk0[0], c);
|
||||||
|
}
|
||||||
|
|
||||||
|
display_measurements(dsp_interval / 1000.0);
|
||||||
|
|
||||||
|
now = get_time();
|
||||||
|
|
||||||
|
/* sleep interval */
|
||||||
|
sleep = ((double)dsp_interval / 1000.0) - (now - begin_time);
|
||||||
|
if (sleep > 0)
|
||||||
|
usleep(sleep * 1000000.0);
|
||||||
|
}
|
||||||
|
|
||||||
|
signal(SIGINT, SIG_DFL);
|
||||||
|
signal(SIGTSTP, SIG_DFL);
|
||||||
|
signal(SIGHUP, SIG_DFL);
|
||||||
|
signal(SIGTERM, SIG_DFL);
|
||||||
|
signal(SIGPIPE, SIG_DFL);
|
||||||
|
|
||||||
|
/* reset terminal */
|
||||||
|
tcsetattr(0, TCSANOW, &term_orig);
|
||||||
|
|
||||||
|
error:
|
||||||
|
/* destroy UK0 instances */
|
||||||
|
for (i = 0; i < num_kanal; i++) {
|
||||||
|
if (uk0[i]) {
|
||||||
|
ph_socket_exit(&uk0[i]->ph_socket);
|
||||||
|
uk0_destroy(uk0[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
soundif_close();
|
||||||
|
|
||||||
|
options_free();
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
|
@ -0,0 +1,295 @@
|
||||||
|
/* PH-socket, a lightweight ISDN physical layer interface
|
||||||
|
*
|
||||||
|
* (C) 2022 by Andreas Eversberg <jolly@eversberg.eu>
|
||||||
|
* All Rights Reserved
|
||||||
|
*
|
||||||
|
* 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 3 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, see <http://www.gnu.org/licenses/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <fcntl.h>
|
||||||
|
#include <errno.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <time.h>
|
||||||
|
#include "../libdebug/debug.h"
|
||||||
|
#include "ph_socket.h"
|
||||||
|
|
||||||
|
#define CHAN s->name
|
||||||
|
|
||||||
|
int ph_socket_init(ph_socket_t *s, void *priv, const char *socket_name, int server)
|
||||||
|
{
|
||||||
|
int rc, flags;
|
||||||
|
|
||||||
|
memset(s, 0, sizeof(*s));
|
||||||
|
s->name = socket_name;
|
||||||
|
s->priv = priv;
|
||||||
|
s->tx_list_tail = &s->tx_list;
|
||||||
|
|
||||||
|
memset(&s->sock_address, 0, sizeof(s->sock_address));
|
||||||
|
s->sock_address.sun_family = AF_UNIX;
|
||||||
|
strncpy(s->sock_address.sun_path, socket_name, sizeof(s->sock_address.sun_path) - 1);
|
||||||
|
|
||||||
|
if (server) {
|
||||||
|
unlink(socket_name);
|
||||||
|
|
||||||
|
rc = socket(PF_UNIX, SOCK_STREAM, 0);
|
||||||
|
if (rc < 0) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_ERROR, "Failed to create UNIX socket.\n");
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
s->listen = rc;
|
||||||
|
|
||||||
|
rc = bind(s->listen, (struct sockaddr *)(&s->sock_address), SUN_LEN(&s->sock_address));
|
||||||
|
if (rc < 0) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_ERROR, "Failed to bind UNIX socket with path '%s' (errno = %d (%s)).\n", socket_name, errno, strerror(errno));
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
rc = listen(s->listen, 1);
|
||||||
|
if (rc < 0) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_ERROR, "Failed to listen to UNIX socket with path '%s' (errno = %d (%s)).\n", socket_name, errno, strerror(errno));
|
||||||
|
return rc;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* set nonblocking io */
|
||||||
|
flags = fcntl(s->listen, F_GETFL);
|
||||||
|
flags |= O_NONBLOCK;
|
||||||
|
fcntl(s->listen, F_SETFL, flags);
|
||||||
|
}
|
||||||
|
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_INFO, "Created PH-socket at '%s'.\n", socket_name);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void close_connection(ph_socket_t *s)
|
||||||
|
{
|
||||||
|
struct socket_msg_list *ml;
|
||||||
|
uint8_t disable = PH_CTRL_DISABLE;
|
||||||
|
|
||||||
|
if (s->connect <= 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_INFO, "Connection from PH-socket closed.\n");
|
||||||
|
|
||||||
|
/* indicate loss of socket connection */
|
||||||
|
ph_socket_rx_msg(s, 0, (s->listen > 0) ? PH_PRIM_CTRL_REQ : PH_PRIM_CTRL_IND, &disable, 1);
|
||||||
|
|
||||||
|
close(s->connect);
|
||||||
|
s->connect = 0;
|
||||||
|
|
||||||
|
while ((ml = s->tx_list)) {
|
||||||
|
s->tx_list = ml->next;
|
||||||
|
free(ml);
|
||||||
|
}
|
||||||
|
s->tx_list_tail = &s->tx_list;
|
||||||
|
if (s->rx_msg) {
|
||||||
|
free(s->rx_msg);
|
||||||
|
s->rx_msg = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* set timer, so that retry is delayed */
|
||||||
|
static struct timespec tv;
|
||||||
|
clock_gettime(CLOCK_REALTIME, &tv);
|
||||||
|
double now = (double)tv.tv_sec + (double)tv.tv_nsec / 1000000000.0;
|
||||||
|
s->connect_timer = now + SOCKET_RETRY_TIMER;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ph_socket_exit(ph_socket_t *s)
|
||||||
|
{
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_INFO, "Destroyed PH-socket.\n");
|
||||||
|
|
||||||
|
close_connection(s);
|
||||||
|
if (s->listen > 0) {
|
||||||
|
close(s->listen);
|
||||||
|
s->listen = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int ph_socket_work(ph_socket_t *s)
|
||||||
|
{
|
||||||
|
uint8_t enable = PH_CTRL_ENABLE;
|
||||||
|
int rc, flags;
|
||||||
|
int work = 0;
|
||||||
|
|
||||||
|
if (s->listen > 0) {
|
||||||
|
struct sockaddr_un sock_address;
|
||||||
|
socklen_t sock_len = sizeof(sock_address);
|
||||||
|
/* see if there is an incoming connection */
|
||||||
|
rc = accept(s->listen, (struct sockaddr *)&sock_address, &sock_len);
|
||||||
|
if (rc > 0) {
|
||||||
|
if (s->connect > 0) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_ERROR, "Rejecting incoming connection, because we already have a client connected!\n");
|
||||||
|
close(rc);
|
||||||
|
} else {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_INFO, "Connection from PH-socket client.\n");
|
||||||
|
s->connect = rc;
|
||||||
|
/* set nonblocking io */
|
||||||
|
flags = fcntl(s->connect, F_GETFL);
|
||||||
|
flags |= O_NONBLOCK;
|
||||||
|
fcntl(s->connect, F_SETFL, flags);
|
||||||
|
/* reset rx buffer */
|
||||||
|
s->rx_header_index = 0;
|
||||||
|
s->rx_data_index = 0;
|
||||||
|
/* indicate established socket connection */
|
||||||
|
ph_socket_rx_msg(s, 0, PH_PRIM_CTRL_REQ, &enable, 1);
|
||||||
|
}
|
||||||
|
work = 1;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
/* open connection, if closed */
|
||||||
|
if (s->connect <= 0) {
|
||||||
|
static struct timespec tv;
|
||||||
|
clock_gettime(CLOCK_REALTIME, &tv);
|
||||||
|
double now = (double)tv.tv_sec + (double)tv.tv_nsec / 1000000000.0;
|
||||||
|
if (s->connect_timer < now) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_DEBUG, "Trying to connect to PH-socket server.\n");
|
||||||
|
rc = socket(PF_UNIX, SOCK_STREAM, 0);
|
||||||
|
if (rc < 0) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_ERROR, "Failed to create UNIX socket.\n");
|
||||||
|
s->connect_timer = now + SOCKET_RETRY_TIMER;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
s->connect = rc;
|
||||||
|
/* connect */
|
||||||
|
rc = connect(s->connect, (struct sockaddr *)&s->sock_address, SUN_LEN(&s->sock_address));
|
||||||
|
if (rc < 0 && errno != EAGAIN) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_NOTICE, "Failed to connect UNIX socket.\n");
|
||||||
|
close(s->connect);
|
||||||
|
s->connect = 0;
|
||||||
|
s->connect_timer = now + SOCKET_RETRY_TIMER;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_INFO, "Connection to PH-socket server.\n");
|
||||||
|
/* set nonblocking io */
|
||||||
|
flags = fcntl(s->connect, F_GETFL);
|
||||||
|
flags |= O_NONBLOCK;
|
||||||
|
fcntl(s->connect, F_SETFL, flags);
|
||||||
|
/* reset rx buffer */
|
||||||
|
s->rx_header_index = 0;
|
||||||
|
s->rx_data_index = 0;
|
||||||
|
/* indicate established socket connection */
|
||||||
|
ph_socket_rx_msg(s, 0, PH_PRIM_CTRL_IND, &enable, 1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* handle connection, if any */
|
||||||
|
if (s->connect > 0) {
|
||||||
|
if (!s->rx_msg)
|
||||||
|
s->rx_msg = calloc(1, sizeof(*s->rx_msg));
|
||||||
|
rx_again:
|
||||||
|
if (s->rx_header_index < (int)sizeof(s->rx_msg->msg.header)) {
|
||||||
|
/* read header until complete */
|
||||||
|
rc = recv(s->connect, ((uint8_t *)&s->rx_msg->msg.header) + s->rx_header_index, sizeof(s->rx_msg->msg.header) - s->rx_header_index, 0);
|
||||||
|
if (rc > 0) {
|
||||||
|
s->rx_header_index += rc;
|
||||||
|
work = 1;
|
||||||
|
goto rx_again;
|
||||||
|
} else if (rc == 0 || errno != EAGAIN) {
|
||||||
|
close_connection(s);
|
||||||
|
work = 1;
|
||||||
|
}
|
||||||
|
} else if (s->rx_data_index < s->rx_msg->msg.header.length) {
|
||||||
|
/* read data until complete */
|
||||||
|
rc = recv(s->connect, s->rx_msg->msg.data + s->rx_data_index, s->rx_msg->msg.header.length - s->rx_data_index, 0);
|
||||||
|
if (rc > 0) {
|
||||||
|
s->rx_data_index += rc;
|
||||||
|
work = 1;
|
||||||
|
goto rx_again;
|
||||||
|
} else if (rc == 0 || errno != EAGAIN) {
|
||||||
|
close_connection(s);
|
||||||
|
work = 1;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
/* process and free message */
|
||||||
|
if (s->rx_msg->msg.header.prim != PH_PRIM_DATA_REQ
|
||||||
|
&& s->rx_msg->msg.header.prim != PH_PRIM_DATA_IND) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_DEBUG, "message 0x%02x channel %d from socket\n", s->rx_msg->msg.header.prim, s->rx_msg->msg.header.channel);
|
||||||
|
if (s->rx_msg->msg.header.length)
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_DEBUG, " -> data:%s\n", debug_hex(s->rx_msg->msg.data, s->rx_msg->msg.header.length));
|
||||||
|
}
|
||||||
|
ph_socket_rx_msg(s, s->rx_msg->msg.header.channel, s->rx_msg->msg.header.prim, s->rx_msg->msg.data, s->rx_msg->msg.header.length);
|
||||||
|
free(s->rx_msg);
|
||||||
|
s->rx_msg = NULL;
|
||||||
|
/* reset rx buffer */
|
||||||
|
s->rx_header_index = 0;
|
||||||
|
s->rx_data_index = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
tx_again:
|
||||||
|
if (s->tx_list) {
|
||||||
|
/* some frame in tx list, so try sending it */
|
||||||
|
rc = send(s->connect, ((uint8_t *)&s->tx_list->msg.header), sizeof(s->tx_list->msg.header) + s->tx_list->msg.header.length, 0);
|
||||||
|
if (rc > 0) {
|
||||||
|
struct socket_msg_list *ml;
|
||||||
|
if (rc != (int)sizeof(s->tx_list->msg.header) + s->tx_list->msg.header.length) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_ERROR, "Short write, please fix handling!\n");
|
||||||
|
}
|
||||||
|
/* remove list entry */
|
||||||
|
ml = s->tx_list;
|
||||||
|
s->tx_list = ml->next;
|
||||||
|
if (s->tx_list == NULL)
|
||||||
|
s->tx_list_tail = &s->tx_list;
|
||||||
|
free(ml);
|
||||||
|
work = 1;
|
||||||
|
goto tx_again;
|
||||||
|
} else if (rc == 0 || errno != EAGAIN) {
|
||||||
|
close_connection(s);
|
||||||
|
work = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return work;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ph_socket_tx_msg(ph_socket_t *s, int channel, uint8_t prim, uint8_t *data, int length)
|
||||||
|
{
|
||||||
|
struct socket_msg_list *tx_msg;
|
||||||
|
|
||||||
|
if (prim != PH_PRIM_DATA_REQ
|
||||||
|
&& prim != PH_PRIM_DATA_IND) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_DEBUG, "message 0x%02x channel %d to socket\n", prim, channel);
|
||||||
|
if (length)
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_DEBUG, " -> data:%s\n", debug_hex(data, length));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (length > (int)sizeof(tx_msg->msg.data)) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_NOTICE, "Frame from HDLC process too large for socket, dropping!\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (s->connect <= 0) {
|
||||||
|
PDEBUG_CHAN(DPH, DEBUG_NOTICE, "Dropping message for socket, socket is closed!\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
tx_msg = calloc(1, sizeof(*tx_msg));
|
||||||
|
tx_msg->msg.header.channel = channel;
|
||||||
|
tx_msg->msg.header.prim = prim;
|
||||||
|
if (length) {
|
||||||
|
tx_msg->msg.header.length = length;
|
||||||
|
memcpy(tx_msg->msg.data, data, length);
|
||||||
|
}
|
||||||
|
/* move message to list */
|
||||||
|
*s->tx_list_tail = tx_msg;
|
||||||
|
s->tx_list_tail = &tx_msg->next;
|
||||||
|
}
|
||||||
|
|
|
@ -0,0 +1,102 @@
|
||||||
|
|
||||||
|
#include <sys/un.h>
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Procedure:
|
||||||
|
*
|
||||||
|
* If socket connection is establised, a PH_PRIM_CTRL_REQ message with
|
||||||
|
* PH_CTRL_ENABLE information is received by the socket server user.
|
||||||
|
* If the socket connection is lost, a PH_PRIM_CTRL_REQ message with
|
||||||
|
* PH_CTRL_DISABLE information is received by the user.
|
||||||
|
*
|
||||||
|
* If socket connection is establised, a PH_PRIM_CTRL_IND message with
|
||||||
|
* PH_CTRL_ENABLE information is received by the socket client user.
|
||||||
|
* If the socket connection is lost, a PH_PRIM_CTRL_IND message with
|
||||||
|
* PH_CTRL_DISABLE information is received by the user.
|
||||||
|
*
|
||||||
|
* The socket server should activate or deactivate interface depending
|
||||||
|
* on the PH_CTRL_ENABEL / PH_CTRL_DISABLE information.
|
||||||
|
*
|
||||||
|
* The socket client user shall keep track of last PH_PRIM_ACT_IND /
|
||||||
|
* PH_PRIM_DEACT_IND message and treat a PH_PRIM_CTRL_IND message with
|
||||||
|
* PH_CTRL_DISABLE information as a deactivation of all channels that
|
||||||
|
* were activated. Also it shall reject every PH_RIM_ACT_REQ with a
|
||||||
|
* PH_PRIM_DACT_IND, if the socket is currently unavailable.
|
||||||
|
*
|
||||||
|
* PH_PRIM_CTRL_REQ and PH_PRIM_CTRL_IND messages with PH_CTRL_ENABLE
|
||||||
|
* and PH_CTRL_DISABLE informations are not assoicated with a channel
|
||||||
|
* number. The socket sender shall set it to 0, the receiver shall
|
||||||
|
* ignore it.
|
||||||
|
*
|
||||||
|
* A missing MODE in PH_PRIM_ACT_REQ is interepreted as default:
|
||||||
|
* HDLC on D-channel, TRANS on B-channel.
|
||||||
|
*
|
||||||
|
* Each packet on the socket shall have the follwoing header:
|
||||||
|
* uint8_t channel;
|
||||||
|
* uint8_t prim;
|
||||||
|
* uint16_t length;
|
||||||
|
*
|
||||||
|
* The length shall be in host's endian on UN sockets and in network
|
||||||
|
* endian on TCP sockets and not being transmitted on UDP sockets.
|
||||||
|
*
|
||||||
|
* 0 to 65535 bytes shall follow the header, depending on the length
|
||||||
|
* information field.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* all primitives */
|
||||||
|
#define PH_PRIM_DATA_REQ 0x00 /* any data sent to channel from upper layer */
|
||||||
|
#define PH_PRIM_DATA_IND 0x01 /* any data received from channel to upper layer */
|
||||||
|
|
||||||
|
#define PH_PRIM_CTRL_REQ 0x04 /* implementation specific requests towards interface */
|
||||||
|
#define PH_PRIM_CTRL_IND 0x05 /* implementation specific indications from interface */
|
||||||
|
|
||||||
|
#define PH_PRIM_ACT_REQ 0x08 /* activation request of channel, mode is given as payload */
|
||||||
|
#define PH_PRIM_ACT_IND 0x09 /* activation indication that the channel is now active */
|
||||||
|
|
||||||
|
#define PH_PRIM_DACT_REQ 0x0c /* deactivation request of channel */
|
||||||
|
#define PH_PRIM_DACT_IND 0x0d /* deactivation indication that the channel is now inactive */
|
||||||
|
|
||||||
|
/* one byte sent activation request */
|
||||||
|
#define PH_MODE_TRANS 0x00 /* raw data is sent via B-channel */
|
||||||
|
#define PH_MODE_HDLC 0x01 /* HDLC transcoding is performed via B-channel */
|
||||||
|
|
||||||
|
/* one byte sent with control messages */
|
||||||
|
#define PH_CTRL_DISABLE 0x00 /* disable (block) interface, when socket is disconnected */
|
||||||
|
#define PH_CTRL_ENABLE 0x01 /* enable (unblock) interface, when socket is connected */
|
||||||
|
|
||||||
|
struct socket_msg {
|
||||||
|
struct {
|
||||||
|
uint8_t channel;
|
||||||
|
uint8_t prim;
|
||||||
|
uint16_t length;
|
||||||
|
} header;
|
||||||
|
uint8_t data[65536];
|
||||||
|
} __attribute__((packed));
|
||||||
|
|
||||||
|
struct socket_msg_list {
|
||||||
|
struct socket_msg_list *next;
|
||||||
|
struct socket_msg msg;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define SOCKET_RETRY_TIMER 2.0
|
||||||
|
|
||||||
|
typedef struct ph_socket {
|
||||||
|
const char *name;
|
||||||
|
void *priv;
|
||||||
|
struct sockaddr_un sock_address;
|
||||||
|
int listen; /* socket to listen to incoming connections */
|
||||||
|
int connect; /* socket of incoming connection */
|
||||||
|
double connect_timer; /* time when to connect again */
|
||||||
|
struct socket_msg_list *tx_list, **tx_list_tail;
|
||||||
|
struct socket_msg_list *rx_msg;
|
||||||
|
int rx_header_index;
|
||||||
|
int rx_data_index;
|
||||||
|
} ph_socket_t;
|
||||||
|
|
||||||
|
int ph_socket_init(ph_socket_t *s, void *priv, const char *socket_name, int server);
|
||||||
|
void ph_socket_exit(ph_socket_t *s);
|
||||||
|
void ph_socket_tx_msg(ph_socket_t *s, int channel, uint8_t prim, uint8_t *data, int length);
|
||||||
|
void ph_socket_rx_msg(ph_socket_t *s, int channel, uint8_t prim, uint8_t *data, int length);
|
||||||
|
int ph_socket_work(ph_socket_t *s);
|
||||||
|
|
||||||
|
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,137 @@
|
||||||
|
|
||||||
|
#include "../libsample/sample.h"
|
||||||
|
#include "../libfilter/iir_filter.h"
|
||||||
|
#include "../libwave/wave.h"
|
||||||
|
#include "../libdisplay/display.h"
|
||||||
|
#include "hdlc.h"
|
||||||
|
#include "ph_socket.h"
|
||||||
|
|
||||||
|
#define TX_NUM_B 64 /* must be a multiple of 8 (one frame) */
|
||||||
|
#define TX_NUM_D 16 /* must be a multiple of 2 (one frame) */
|
||||||
|
|
||||||
|
typedef struct uk0_tx {
|
||||||
|
double phase, phase_step;
|
||||||
|
int index;
|
||||||
|
double level, last_level;
|
||||||
|
uint64_t buffer[8]; /* 256 symbols */
|
||||||
|
int frame_length;
|
||||||
|
int frame_index;
|
||||||
|
uint8_t mms43_column;
|
||||||
|
uint32_t scramble;
|
||||||
|
uint8_t B1[TX_NUM_B], B2[TX_NUM_B], D[TX_NUM_D];
|
||||||
|
int b_count, d_count;
|
||||||
|
} uk0_tx_t;
|
||||||
|
|
||||||
|
#define RX_NUM_B 64 /* must be a multiple of 8 (one frame) */
|
||||||
|
#define RX_NUM_D 16 /* must be a multiple of 2 (one frame) */
|
||||||
|
|
||||||
|
typedef struct uk0_rx {
|
||||||
|
wave_rec_t rec;
|
||||||
|
double *sinc;
|
||||||
|
double *window;
|
||||||
|
int window_length;
|
||||||
|
double last_level;
|
||||||
|
double phase, phase_step; /* uncorrected phase */
|
||||||
|
double sample_phase; /* corrected phase for sample point */
|
||||||
|
iir_filter_t lp[2]; /* filters received IQ signal */
|
||||||
|
double count_ms, ms_per_sample; /* counter when to correct phase */
|
||||||
|
double min, max;
|
||||||
|
double zero, low, high, low_threshold, high_threshold, rx_level;
|
||||||
|
uint64_t buffer[4];
|
||||||
|
int u0_detect; /* counter to detect LOS */
|
||||||
|
int u1w_count; /* counter to detect cease of U1W */
|
||||||
|
int u1a_count, u1a_detect; /* counters to detect U1A */
|
||||||
|
int sync_count, sync_symbols;
|
||||||
|
uint64_t sync_last;
|
||||||
|
uint32_t descramble;
|
||||||
|
uint8_t B1[RX_NUM_B], B2[RX_NUM_B], D[RX_NUM_D];
|
||||||
|
int b_count, d_count;
|
||||||
|
} uk0_rx_t;
|
||||||
|
|
||||||
|
enum uk0_state {
|
||||||
|
/* interface off */
|
||||||
|
UK0_STATE_NULL = 0,
|
||||||
|
/* deactivated state, waiting for LT or NT activation */
|
||||||
|
UK0_STATE_LT_1_1,
|
||||||
|
/* got U1W, send U2W */
|
||||||
|
UK0_STATE_LT_1_2,
|
||||||
|
/* got activation from LT, send U2W */
|
||||||
|
UK0_STATE_LT_1_3,
|
||||||
|
/* wait for U1 or U3 */
|
||||||
|
UK0_STATE_LT_1_4,
|
||||||
|
/* wait for U3 */
|
||||||
|
UK0_STATE_LT_1_5,
|
||||||
|
/* send U4H */
|
||||||
|
UK0_STATE_LT_1_6,
|
||||||
|
/* send U4 */
|
||||||
|
UK0_STATE_LT_1_7,
|
||||||
|
/* wait for U0 */
|
||||||
|
UK0_STATE_LT_1_8,
|
||||||
|
};
|
||||||
|
|
||||||
|
enum uk0_event {
|
||||||
|
UK0_EVENT_DISABLE = 0,
|
||||||
|
UK0_EVENT_ENABLE,
|
||||||
|
UK0_EVENT_DEACTIVATE,
|
||||||
|
UK0_EVENT_ACTIVATE,
|
||||||
|
UK0_EVENT_TIMEOUT,
|
||||||
|
UK0_EVENT_U0,
|
||||||
|
UK0_EVENT_U1W,
|
||||||
|
UK0_EVENT_U1A,
|
||||||
|
UK0_EVENT_U1,
|
||||||
|
UK0_EVENT_U3,
|
||||||
|
UK0_EVENT_U5,
|
||||||
|
UK0_EVENT_SP,
|
||||||
|
UK0_EVENT_ANY,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct tx_queue {
|
||||||
|
struct tx_queue *next;
|
||||||
|
int length;
|
||||||
|
uint8_t data[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
typedef struct uk0 {
|
||||||
|
const char *name;
|
||||||
|
enum uk0_state state;
|
||||||
|
int loopback2;
|
||||||
|
int ti1, ti2, timer;
|
||||||
|
uk0_tx_t tx;
|
||||||
|
uk0_rx_t rx;
|
||||||
|
hdlc_tx_t hdlc_tx[3];
|
||||||
|
hdlc_rx_t hdlc_rx[3];
|
||||||
|
struct tx_queue *tx_queue[3], **tx_queue_tail[3];
|
||||||
|
int tx_queue_size[3];
|
||||||
|
ph_socket_t ph_socket;
|
||||||
|
|
||||||
|
/* measurements */
|
||||||
|
int measure_level_interval;
|
||||||
|
int measure_level_index;
|
||||||
|
double measure_level_error;
|
||||||
|
int measure_frame_interval;
|
||||||
|
int measure_frame_index;
|
||||||
|
int measure_frame_error;
|
||||||
|
dispmeas_t dispmeas; /* display measurements */
|
||||||
|
dispmeasparam_t *dmp_level;
|
||||||
|
dispmeasparam_t *dmp_level_error;
|
||||||
|
|
||||||
|
/* wave */
|
||||||
|
dispwav_t dispwav; /* display wave form */
|
||||||
|
|
||||||
|
} uk0_t;
|
||||||
|
|
||||||
|
void uk0_init(void);
|
||||||
|
uk0_t *uk0_create(const char *name, int samplerate, int buffer_size);
|
||||||
|
void uk0_start(uk0_t *uk0);
|
||||||
|
void uk0_destroy(uk0_t *uk0);
|
||||||
|
void uk0_work(uk0_t *uk0, int buffer_size);
|
||||||
|
void uk0_send(uk0_t *uk0, int ch, uint8_t *data, int length);
|
||||||
|
void uk0_receive(uk0_t *uk0, int ch, uint8_t *data, int length);
|
||||||
|
void uk0_handle_event(uk0_t *uk0, enum uk0_event event);
|
||||||
|
void uk0_encode_mms43(uk0_t *uk0, sample_t *samples, int length);
|
||||||
|
void uk0_decode_mms43(uk0_t *uk0, sample_t *samples, int length);
|
||||||
|
|
||||||
|
void uk0_tx_flush(uk0_t *uk0, int channel);
|
||||||
|
void uk0_tx_enqueue(uk0_t *uk0, int channel, uint8_t *data, int length);
|
||||||
|
int uk0_tx_dequeue(uk0_t *uk0, int channel, uint8_t *data, int size);
|
||||||
|
|
Loading…
Reference in New Issue