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TrueBTS: add a new skeleton OsmoSAPMux

We will use this SAPMux replacement to tie the OpenBTS L1 to osmo-bts L2.
master
Harald Welte 11 years ago
parent 98cdb03713
commit 1c41c4e0ae
  1. 2
      public-trunk/GSM/Makefile.am
  2. 50
      public-trunk/GSM/OsmoSAPMux.cpp
  3. 70
      public-trunk/GSM/OsmoSAPMux.h

@ -32,6 +32,7 @@ libGSML1_la_SOURCES = \
GSML1FEC.cpp \
GSMTDMA.cpp \
GSMTransfer.cpp \
OsmoSAPMux.cpp \
GSMTAPDump.cpp
libGSM_la_SOURCES = \
@ -77,5 +78,6 @@ noinst_HEADERS = \
GSMTransfer.h \
PowerManager.h \
GSMTAPDump.h \
OsmoSAPMux.h \
gsmtap.h

@ -0,0 +1,50 @@
/*
* Copyright 2011 Harald Welte <laforge@gnumonks.org>
*
* This software is distributed under the terms of the GNU Affero Public License.
* See the COPYING file in the main directory for details.
*
* This use of this software may be subject to additional restrictions.
* See the LEGAL file in the main directory for details.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "OsmoSAPMux.h"
#include "GSMTransfer.h"
#include "GSML1FEC.h"
#include <Logger.h>
using namespace GSM;
void OsmoSAPMux::writeHighSide(const L2Frame& frame)
{
// The SAP may or may not be present, depending on the channel type.
OBJLOG(DEEPDEBUG) << "OsmoSAPMux::writeHighSide " << frame;
}
void OsmoSAPMux::writeLowSide(const L2Frame& frame)
{
OBJLOG(DEEPDEBUG) << "OsmoSAPMux::writeLowSide SAP" << frame.SAPI() << " " << frame;
}
// vim: ts=4 sw=4

@ -0,0 +1,70 @@
/*
* Copyright 2011 Harald Welte <laforge@gnumonks.org>
*
* This software is distributed under the terms of the GNU Affero Public License.
* See the COPYING file in the main directory for details.
*
* This use of this software may be subject to additional restrictions.
* See the LEGAL file in the main directory for details.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OsmoSAPMUX_H
#define OsmoSAPMUX_H
#include "GSMSAPMux.h"
#include "GSMTransfer.h"
#include "GSML1FEC.h"
#include <Logger.h>
namespace GSM {
/**
A SAPMux is a multipexer the connects a single L1 to multiple L2s.
A "service access point" in GSM/ISDN is analogous to port number in IP.
GSM allows up to 4 SAPs, although only two are presently used.
See GSM 04.05 5.2 for an introduction.
*/
class OsmoSAPMux : public SAPMux {
protected:
public:
OsmoSAPMux(){
}
virtual ~OsmoSAPMux() {}
virtual void writeHighSide(const L2Frame& frame);
virtual void writeLowSide(const L2Frame& frame);
void upstream( L2DL * wUpstream, unsigned wSAPI=0 )
{ }
void downstream( L1FEC * wDownstream )
{ }
};
} // namespace GSM
#endif
// vim: ts=4 sw=4