Bump version: 1.1.1.38-9f2b-dirty → 1.2.0

Change-Id: I9009eb44e7d8100294da139300480fc3a2f6b616

.gitignore

@@ -2,7 +2,9 @@
 *.o
 *.lo
 *.la
-Transceiver52M/osmo-trx
+Transceiver52M/osmo-trx-uhd
+Transceiver52M/osmo-trx-usrp1
+Transceiver52M/osmo-trx-lms
 
 # tests
 tests/CommonLibs/BitVectorTest
@@ -16,6 +18,7 @@ tests/CommonLibs/URLEncodeTest
 tests/CommonLibs/VectorTest
 tests/CommonLibs/PRBSTest
 tests/Transceiver52M/convolve_test
+tests/Transceiver52M/LMSDeviceTest
 
 # automake/autoconf
 *.in
@@ -49,3 +52,14 @@ tests/testsuite.log
 
 # vim
 *.sw?
+
+# manuals
+doc/manuals/*.html
+doc/manuals/*.svg
+doc/manuals/*.pdf
+doc/manuals/*__*.png
+doc/manuals/*.check
+doc/manuals/generated/
+doc/manuals/osmomsc-usermanual.xml
+doc/manuals/common
+doc/manuals/build

AUTHORS

@@ -1,127 +0,0 @@
-#
-# Copyright 2008, 2009 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio 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, or (at your option)
-# any later version.
-#
-# GNU Radio 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, write to the Free Software Foundation, Inc.,
-# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-#
-
-David A. Burgess, dburgess@kestrelsp.com:
-    CLI/CLI.cpp
-    CLI/CLI.h
-    CommonLibs/Assert.h
-    CommonLibs/BitVector.cpp
-    CommonLibs/Interthread.h
-    CommonLibs/LinkedLists.cpp
-    CommonLibs/LinkedLists.h
-    CommonLibs/Regexp.h
-    CommonLibs/Sockets.cpp
-    CommonLibs/Sockets.h
-    CommonLibs/Threads.cpp
-    CommonLibs/Threads.h
-    CommonLibs/Timeval.cpp
-    CommonLibs/Timeval.h
-    CommonLibs/Vector.h
-    GSM/GSM610Tables.cpp
-    GSM/GSM610Tables.h
-    GSM/GSMCommon.cpp
-    GSM/GSMCommon.h
-    GSM/GSMConfig.h
-    GSM/GSML1FEC.cpp
-    GSM/GSML1FEC.h
-    GSM/GSML2LAPDm.cpp
-    GSM/GSML2LAPDm.h
-    GSM/GSML3CCElements.cpp
-    GSM/GSML3CCElements.h
-    GSM/GSML3CCMessages.cpp
-    GSM/GSML3CCMessages.h
-    GSM/GSML3CommonElements.cpp
-    GSM/GSML3CommonElements.h
-    GSM/GSML3MMElements.cpp
-    GSM/GSML3MMElements.h
-    GSM/GSML3MMMessages.cpp
-    GSM/GSML3MMMessages.h
-    GSM/GSML3Message.cpp
-    GSM/GSML3Message.h
-    GSM/GSML3RRElements.cpp
-    GSM/GSML3RRElements.h
-    GSM/GSML3RRMessages.cpp
-    GSM/GSML3RRMessages.h
-    GSM/GSMLogicalChannel.h
-    GSM/GSMTDMA.cpp
-    GSM/GSMTDMA.h
-    GSM/GSMTransfer.cpp
-    GSM/GSMTransfer.h
-    LICENSEBLOCK
-    TRXManager/TRXManager.cpp
-    Transceiver/Complex.h
-    tests/CommonLibs/BitVectorTest.cpp
-    tests/CommonLibs/InterthreadTest.cpp
-    tests/CommonLibs/SocketsTest.cpp
-    tests/CommonLibs/TimevalTest.cpp
-    tests/CommonLibs/VectorTest.cpp
-
-Harvind S. Samra, hssamra@kestrelsp.com:
-    GSM/GSMConfig.h
-    GSM/GSMTransfer.h
-    LICENSEBLOCK
-    Transceiver/ComplexTest.cpp
-    Transceiver/Transceiver.cpp
-    Transceiver/Transceiver.h
-    Transceiver/USRPDevice.cpp
-    Transceiver/USRPDevice.h
-    Transceiver/USRPping.cpp
-    Transceiver/radioInterface.cpp
-    Transceiver/radioInterface.h
-    Transceiver/rcvLPF_651.h
-    Transceiver/runTransceiver.cpp
-    Transceiver/sendLPF_961.h
-    Transceiver/sigProcLib.cpp
-    Transceiver/sigProcLib.h
-    Transceiver/sigProcLibTest.cpp
-    Transceiver/sweepGenerator.cpp
-    Transceiver/testRadio.cpp
-
-Raffi Sevlian, raffisev@gmail.com:
-    GSM/GSMCommon.h
-    GSM/GSMConfig.h
-    GSM/GSML1FEC.h
-    GSM/GSML3CCElements.cpp
-    GSM/GSML3CCElements.h
-    GSM/GSML3CCMessages.cpp
-    GSM/GSML3CCMessages.h
-    GSM/GSML3CommonElements.cpp
-    GSM/GSML3CommonElements.h
-    GSM/GSML3MMElements.cpp
-    GSM/GSML3MMElements.h
-    GSM/GSML3MMMessages.cpp
-    GSM/GSML3MMMessages.h
-    GSM/GSML3Message.cpp
-    GSM/GSML3Message.h
-    GSM/GSML3RRElements.cpp
-    GSM/GSML3RRElements.h
-    GSM/GSML3RRMessages.cpp
-    GSM/GSML3RRMessages.h
-    GSM/GSMLogicalChannel.h
-    GSM/GSMSAPMux.cpp
-    GSM/GSMSAPMux.h
-    GSM/GSMTransfer.h
-    LICENSEBLOCK
-    TRXManager/TRXManager.h
-
-Alon Levy, alonlevy1@gmail.com
-    RRLPMessages.cpp
-    RRLPMessages.h
-    RRLPTest.cpp

CommonLibs/BitVector.cpp

@@ -1,6 +1,7 @@
 /*
 * Copyright 2008, 2009 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
 *
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -36,7 +37,7 @@ using namespace std;
 
 
 /**
-  Apply a Galois polymonial to a binary seqeunce.
+  Apply a Galois polymonial to a binary sequence.
   @param val The input sequence.
   @param poly The polynomial.
   @param order The order of the polynomial.

CommonLibs/BitVector.h

@@ -1,6 +1,8 @@
 /*
 * Copyright 2008, 2009 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *

CommonLibs/Interthread.h

@@ -1,6 +1,8 @@
 /*
 * Copyright 2008, 2011 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -45,7 +47,7 @@
 // (pat) The elements in the queue are type T*, and
 // the Fifo class implements the underlying queue.
 // The default is class PointerFIFO, which does not place any restrictions on the type of T,
-// and is implemented by allocating auxilliary structures for the queue,
+// and is implemented by allocating auxiliary structures for the queue,
 // or SingleLinkedList, which implements the queue using an internal pointer in type T,
 // which must implement the functional interface of class SingleLinkListNode,
 // namely: functions T*next() and void setNext(T*).

CommonLibs/LinkedLists.cpp

@@ -1,6 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
 *
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -29,6 +30,25 @@
 #include "LinkedLists.h"
 
 
+PointerFIFO::~PointerFIFO()
+{
+	ListNode *node, *next;
+
+	node = mHead;
+	while (node != NULL) {
+		next = node->next();
+		delete node;
+		node = next;
+	}
+
+	node = mFreeList;
+	while (node != NULL) {
+		next = node->next();
+		delete node;
+		node = next;
+	}
+}
+
 void PointerFIFO::push_front(void* val)	// by pat
 {
 	// Pat added this routine for completeness, but never used or tested.

CommonLibs/LinkedLists.h

@@ -1,7 +1,10 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
+* SPDX-License-Identifier: AGPL-3.0+
+*
+* This software is distributed under multiple licenses; see the COPYING file in
+* the main directory for licensing information for this specific distribution.
 *
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -70,6 +73,7 @@ class PointerFIFO {
 		:mHead(NULL),mTail(NULL),mFreeList(NULL),
 		mSize(0)
 	{}
+	~PointerFIFO();
 
 	unsigned size() const { return mSize; }
 	unsigned totalSize() const { return 0; }	// Not used in this version.

CommonLibs/Logger.cpp

@@ -1,8 +1,7 @@
 /*
-* Copyright 2009, 2010 Free Software Foundation, Inc.
-* Copyright 2010 Kestrel Signal Processing, Inc.
-* Copyright 2011, 2012 Range Networks, Inc.
+* Copyright (C) 2018 sysmocom - s.f.m.c. GmbH
 *
+* SPDX-License-Identifier: AGPL-3.0+
 *
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -37,57 +36,6 @@
 
 using namespace std;
 
-Mutex gLogToLock;
-
-// Global log level threshold:
-int config_log_level;
-
-/** Names of the logging levels. */
-const char *levelNames[] = {
-	"EMERG", "ALERT", "CRIT", "ERR", "WARNING", "NOTICE", "INFO", "DEBUG"
-};
-int numLevels = 8;
-
-
-int levelStringToInt(const string& name)
-{
-	// Reverse search, since the numerically larger levels are more common.
-	for (int i=numLevels-1; i>=0; i--) {
-		if (name == levelNames[i]) return i;
-	}
-
-	// Common substitutions.
-	if (name=="INFORMATION") return 6;
-	if (name=="WARN") return 4;
-	if (name=="ERROR") return 3;
-	if (name=="CRITICAL") return 2;
-	if (name=="EMERGENCY") return 0;
-
-	// Unknown level.
-	return -1;
-}
-
-static std::string format(const char *fmt, ...)
-{
-	va_list ap;
-	char buf[300];
-	va_start(ap,fmt);
-	int n = vsnprintf(buf,300,fmt,ap);
-	va_end(ap);
-	if (n >= (300-4)) { strcpy(&buf[(300-4)],"..."); }
-	return std::string(buf);
-}
-
-const std::string timestr()
-{
-	struct timeval tv;
-	struct tm tm;
-	gettimeofday(&tv,NULL);
-	localtime_r(&tv.tv_sec,&tm);
-	unsigned tenths = tv.tv_usec / 100000;	// Rounding down is ok.
-	return format(" %02d:%02d:%02d.%1d",tm.tm_hour,tm.tm_min,tm.tm_sec,tenths);
-}
-
 std::ostream& operator<<(std::ostream& os, std::ostringstream& ss)
 {
 	return os << ss.str();
@@ -95,34 +43,21 @@ std::ostream& operator<<(std::ostream& os, std::ostringstream& ss)
 
 Log::~Log()
 {
-	// Anything at or above LOG_CRIT is an "alarm".
-	if (mPriority <= LOG_ERR) {
-		cerr << mStream.str() << endl;
-	}
-
+	int old_state;
 	int mlen = mStream.str().size();
 	int neednl = (mlen==0 || mStream.str()[mlen-1] != '\n');
-	ScopedLock lock(gLogToLock);
-	// The COUT() macro prevents messages from stomping each other but adds uninteresting thread numbers,
-	// so just use std::cout.
-	std::cout << mStream.str();
-	if (neednl) std::cout<<"\n";
+	const char *fmt = neednl ? "%s\n" : "%s";
+
+	/* print related function called inside a C++ destructor, use pthread_setcancelstate() APIs.
+	   See osmo-trx commit 86be40b4eb762d5c12e8e3f7388ca9f254e77b36 for more information */
+	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_state);
+	LOGPSRC(mCategory, mPriority, filename, line, fmt, mStream.str().c_str());
+	pthread_setcancelstate(old_state, NULL);
 }
 
 ostringstream& Log::get()
 {
-	assert(mPriority<numLevels);
-	mStream << levelNames[mPriority] <<  ' ';
 	return mStream;
 }
 
-
-
-void gLogInit(const char* level, char *fn)
-{
-	// Set the level if one has been specified.
-	if (level)
-		config_log_level = levelStringToInt(level);
-}
-
 // vim: ts=4 sw=4

CommonLibs/Logger.h

@@ -2,6 +2,8 @@
 * Copyright 2009, 2010 Free Software Foundation, Inc.
 * Copyright 2010 Kestrel Signal Processing, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -23,12 +25,6 @@
 
 */
 
-// (pat) WARNING is stupidly defined in /usr/local/include/osipparser2/osip_const.h.
-// This must be outside the #ifndef LOGGER_H to fix it as long as Logger.h included after the above file.
-#ifdef WARNING
-#undef WARNING
-#endif
-
 #ifndef LOGGER_H
 #define LOGGER_H
 
@@ -37,30 +33,33 @@
 #include <sstream>
 #include <string>
 
-extern int config_log_level;
+extern "C" {
+#include <osmocom/core/logging.h>
+#include "debug.h"
+}
 
-#define LOG_EMERG       0       /* system is unusable */
-#define LOG_ALERT       1       /* action must be taken immediately */
-#define LOG_CRIT        2       /* critical conditions */
-#define LOG_ERR         3       /* error conditions */
-#define LOG_WARNING     4       /* warning conditions */
-#define LOG_NOTICE      5       /* normal but significant condition */
-#define LOG_INFO        6       /* informational */
-#define LOG_DEBUG       7       /* debug-level messages */
-
-#define _LOG(level) \
-	Log(LOG_##level).get() << pthread_self() \
-	<< timestr() << " " __FILE__  ":"  << __LINE__ << ":" << __FUNCTION__ << ": "
-
-#define IS_LOG_LEVEL(wLevel) (config_log_level>=LOG_##wLevel)
-
-#ifdef NDEBUG
-#define LOG(wLevel) \
-	if (LOG_##wLevel!=LOG_DEBUG && IS_LOG_LEVEL(wLevel)) _LOG(wLevel)
-#else
-#define LOG(wLevel) \
-	if (IS_LOG_LEVEL(wLevel)) _LOG(wLevel)
+/* Translation for old log statements */
+#ifndef LOGL_ALERT
+#define LOGL_ALERT LOGL_FATAL
 #endif
+#ifndef LOGL_ERR
+#define LOGL_ERR LOGL_ERROR
+#endif
+#ifndef LOGL_WARNING
+#define LOGL_WARNING LOGL_NOTICE
+#endif
+
+#define LOG(level) \
+	Log(DMAIN, LOGL_##level, __BASE_FILE__, __LINE__).get() <<  "[tid=" << pthread_self() << "] "
+
+#define LOGC(category, level) \
+	Log(category, LOGL_##level, __BASE_FILE__, __LINE__).get() <<  "[tid=" << pthread_self() << "] "
+
+#define LOGLV(category, level) \
+	Log(category, level, __BASE_FILE__, __LINE__).get() <<  "[tid=" << pthread_self() << "] "
+
+#define LOGCHAN(chan, category, level) \
+	Log(category, LOGL_##level, __BASE_FILE__, __LINE__).get() <<  "[tid=" << pthread_self() << "][chan=" << chan << "] "
 
 /**
 	A C++ stream-based thread-safe logger.
@@ -73,13 +72,17 @@ class Log {
 
 	protected:
 
-	std::ostringstream mStream;		///< This is where we buffer up the log entry.
-	int mPriority;					///< Priority of current report.
+	std::ostringstream mStream;	///< This is where we buffer up the log entry.
+	int mCategory;			///< Priority of current report.
+	int mPriority;			///< Category of current report.
+	const char *filename;		///< Source File Name of current report.
+	int line;			///< Line number in source file of current report.
 
 	public:
 
-	Log(int wPriority)
-		:mPriority(wPriority)
+	Log(int wCategory, int wPriority, const char* filename, int line)
+		: mCategory(wCategory), mPriority(wPriority),
+		  filename(filename), line(line)
 	{ }
 
 	// Most of the work is in the destructor.
@@ -89,16 +92,8 @@ class Log {
 	std::ostringstream& get();
 };
 
-const std::string timestr();		// A timestamp to print in messages.
 std::ostream& operator<<(std::ostream& os, std::ostringstream& ss);
 
-/**@ Global control and initialization of the logging system. */
-//@{
-/** Initialize the global logging system. */
-void gLogInit(const char* level=NULL, char* fn=NULL);
-//@}
-
-
 #endif
 
 // vim: ts=4 sw=4

CommonLibs/Makefile.am

@@ -22,29 +22,35 @@
 include $(top_srcdir)/Makefile.common
 
 AM_CPPFLAGS = $(STD_DEFINES_AND_INCLUDES)
-AM_CXXFLAGS = -Wall -O3 -g -lpthread
-
-EXTRA_DIST = \
-	example.config \
-	README.common
+AM_CXXFLAGS = -Wall -O3 -g -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+AM_CFLAGS = $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
 
 noinst_LTLIBRARIES = libcommon.la
 
 libcommon_la_SOURCES = \
 	BitVector.cpp \
 	LinkedLists.cpp \
-	Sockets.cpp \
 	Threads.cpp \
 	Timeval.cpp \
-	Logger.cpp
+	Logger.cpp \
+	Utils.cpp \
+	trx_rate_ctr.cpp \
+	trx_vty.c \
+	debug.c
+libcommon_la_LIBADD = $(LIBOSMOCORE_LIBS) $(LIBOSMOCTRL_LIBS) $(LIBOSMOVTY_LIBS)
 
 noinst_HEADERS = \
 	BitVector.h \
 	PRBS.h \
 	Interthread.h \
 	LinkedLists.h \
-	Sockets.h \
 	Threads.h \
 	Timeval.h \
 	Vector.h \
-	Logger.h
+	Logger.h \
+	Utils.h \
+	trx_rate_ctr.h \
+	trx_vty.h \
+	debug.h \
+	osmo_signal.h \
+	config_defs.h

CommonLibs/PRBS.h

@@ -1,6 +1,8 @@
 /*
  * Copyright (C) 2017 Alexander Chemeris <Alexander.Chemeris@fairwaves.co>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

CommonLibs/Sockets.cpp

@@ -1,287 +0,0 @@
-/*
-* Copyright 2008, 2010 Free Software Foundation, Inc.
-*
-*
-* 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 <config.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <cstdio>
-#include <sys/select.h>
-
-#include "Threads.h"
-#include "Sockets.h"
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include <string.h>
-#include <stdlib.h>
-
-
-
-
-
-
-bool resolveAddress(struct sockaddr_in *address, const char *hostAndPort)
-{
-	assert(address);
-	assert(hostAndPort);
-	char *copy = strdup(hostAndPort);
-	char *colon = strchr(copy,':');
-	if (!colon) return false;
-	*colon = '\0';
-	char *host = copy;
-	unsigned port = strtol(colon+1,NULL,10);
-	bool retVal = resolveAddress(address,host,port);
-	free(copy);
-	return retVal;
-}
-
-bool resolveAddress(struct sockaddr_in *address, const char *host, unsigned short port)
-{
-	assert(address);
-	assert(host);
-	// FIXME -- Need to ignore leading/trailing spaces in hostname.
-	struct hostent *hp;
-	int h_errno_local;
-#ifdef HAVE_GETHOSTBYNAME2_R
-	struct hostent hostData;
-	char tmpBuffer[2048];
-
-	// There are different flavors of gethostbyname_r(), but
-	// latest Linux use the following form:
-	if (gethostbyname2_r(host, AF_INET, &hostData, tmpBuffer, sizeof(tmpBuffer), &hp, &h_errno_local)!=0) {
-		CERR("WARNING -- gethostbyname2_r() failed for " << host << ", " << hstrerror(h_errno_local));
-		return false;
-	}
-#else
-	static Mutex sGethostbynameMutex;
-	// gethostbyname() is NOT thread-safe, so we should use a mutex here.
-	// Ideally it should be a global mutex for all non thread-safe socket
-	// operations and it should protect access to variables such as
-	// global h_errno.
-	sGethostbynameMutex.lock();
-	hp = gethostbyname(host);
-	h_errno_local = h_errno;
-	sGethostbynameMutex.unlock();
-#endif
- 	if (hp==NULL) {
-		CERR("WARNING -- gethostbyname() failed for " << host << ", " << hstrerror(h_errno_local));
-		return false;
-	}
-	if (hp->h_addrtype != AF_INET) {
-		CERR("WARNING -- gethostbyname() resolved " << host << " to something other then AF_INET");
- 		return false;
- 	}
-	address->sin_family = hp->h_addrtype;
-	assert(sizeof(address->sin_addr) == hp->h_length);
-	memcpy(&(address->sin_addr), hp->h_addr_list[0], hp->h_length);
-	address->sin_port = htons(port);
-	return true;
-}
-
-
-
-DatagramSocket::DatagramSocket()
-{
-	memset(mDestination, 0, sizeof(mDestination));
-}
-
-
-
-
-
-void DatagramSocket::nonblocking()
-{
-	fcntl(mSocketFD,F_SETFL,O_NONBLOCK);
-}
-
-void DatagramSocket::blocking()
-{
-	fcntl(mSocketFD,F_SETFL,0);
-}
-
-void DatagramSocket::close()
-{
-	::close(mSocketFD);
-}
-
-
-DatagramSocket::~DatagramSocket()
-{
-	close();
-}
-
-
-
-
-
-int DatagramSocket::write( const char * message, size_t length )
-{
-	assert(length<=MAX_UDP_LENGTH);
-	int retVal = sendto(mSocketFD, message, length, 0,
-		(struct sockaddr *)mDestination, addressSize());
-	if (retVal == -1 ) perror("DatagramSocket::write() failed");
-	return retVal;
-}
-
-int DatagramSocket::writeBack( const char * message, size_t length )
-{
-	assert(length<=MAX_UDP_LENGTH);
-	int retVal = sendto(mSocketFD, message, length, 0,
-		(struct sockaddr *)mSource, addressSize());
-	if (retVal == -1 ) perror("DatagramSocket::write() failed");
-	return retVal;
-}
-
-
-
-int DatagramSocket::write( const char * message)
-{
-	size_t length=strlen(message)+1;
-	return write(message,length);
-}
-
-int DatagramSocket::writeBack( const char * message)
-{
-	size_t length=strlen(message)+1;
-	return writeBack(message,length);
-}
-
-
-
-int DatagramSocket::send(const struct sockaddr* dest, const char * message, size_t length )
-{
-	assert(length<=MAX_UDP_LENGTH);
-	int retVal = sendto(mSocketFD, message, length, 0, dest, addressSize());
-	if (retVal == -1 ) perror("DatagramSocket::send() failed");
-	return retVal;
-}
-
-int DatagramSocket::send(const struct sockaddr* dest, const char * message)
-{
-	size_t length=strlen(message)+1;
-	return send(dest,message,length);
-}
-
-int DatagramSocket::read(char* buffer, size_t length)
-{
-	socklen_t addr_len = sizeof(mSource);
-	int rd_length = recvfrom(mSocketFD, (void *) buffer, length, 0,
-		(struct sockaddr*) &mSource, &addr_len);
-
-	if ((rd_length==-1) && (errno!=EAGAIN)) {
-		perror("DatagramSocket::read() failed");
-		throw SocketError();
-	}
-	return rd_length;
-}
-
-int DatagramSocket::read(char* buffer, size_t length, unsigned timeout)
-{
-	fd_set fds;
-	FD_ZERO(&fds);
-	FD_SET(mSocketFD,&fds);
-	struct timeval tv;
-	tv.tv_sec = timeout/1000;
-	tv.tv_usec = (timeout%1000)*1000;
-	int sel = select(mSocketFD+1,&fds,NULL,NULL,&tv);
-	if (sel<0) {
-		perror("DatagramSocket::read() select() failed");
-		throw SocketError();
-	}
-	if (sel==0) return -1;
-	if (FD_ISSET(mSocketFD,&fds)) return read(buffer, length);
-	return -1;
-}
-
-
-
-
-
-
-UDPSocket::UDPSocket(const char *wSrcIP, unsigned short wSrcPort)
-	:DatagramSocket()
-{
-	open(wSrcPort, wSrcIP);
-}
-
-
-UDPSocket::UDPSocket(const char *wSrcIP, unsigned short wSrcPort,
-		     const char *wDestIP, unsigned short wDestPort)
-	:DatagramSocket()
-{
-	open(wSrcPort, wSrcIP);
-	destination(wDestPort, wDestIP);
-}
-
-
-
-void UDPSocket::destination( unsigned short wDestPort, const char * wDestIP )
-{
-	resolveAddress((sockaddr_in*)mDestination, wDestIP, wDestPort );
-}
-
-
-void UDPSocket::open(unsigned short localPort, const char *wlocalIP)
-{
-	// create
-	mSocketFD = socket(AF_INET,SOCK_DGRAM,0);
-	if (mSocketFD<0) {
-		perror("socket() failed");
-		throw SocketError();
-	}
-
-	// pat added: This lets the socket be reused immediately, which is needed if OpenBTS crashes.
-	int on = 1;
-	setsockopt(mSocketFD, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
-
-
-	// bind
-	struct sockaddr_in address;
-	size_t length = sizeof(address);
-	bzero(&address,length);
-	address.sin_family = AF_INET;
-	address.sin_addr.s_addr = inet_addr(wlocalIP);
-	address.sin_port = htons(localPort);
-	if (bind(mSocketFD,(struct sockaddr*)&address,length)<0) {
-		perror("bind() failed");
-		throw SocketError();
-	}
-}
-
-
-
-unsigned short UDPSocket::port() const
-{
-	struct sockaddr_in name;
-	socklen_t nameSize = sizeof(name);
-	int retVal = getsockname(mSocketFD, (struct sockaddr*)&name, &nameSize);
-	if (retVal==-1) throw SocketError();
-	return ntohs(name.sin_port);
-}
-
-// vim:ts=4:sw=4

CommonLibs/Sockets.h

@@ -1,173 +0,0 @@
-/*
-* Copyright 2008, 2010 Free Software Foundation, Inc.
-*
-* 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 SOCKETS_H
-#define SOCKETS_H
-
-#include <arpa/inet.h>
-#include <netdb.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <sys/un.h>
-#include <errno.h>
-#include <list>
-#include <assert.h>
-#include <stdint.h>
-#include <stdio.h>
-
-
-
-
-
-#define MAX_UDP_LENGTH 1500
-
-/** A function to resolve IP host names. */
-bool resolveAddress(struct sockaddr_in *address, const char *host, unsigned short port);
-
-/** Resolve an address of the form "<host>:<port>". */
-bool resolveAddress(struct sockaddr_in *address, const char *hostAndPort);
-
-/** An exception to throw when a critical socket operation fails. */
-class SocketError {};
-#define SOCKET_ERROR {throw SocketError(); }
-
-/** Abstract class for connectionless sockets. */
-class DatagramSocket {
-
-protected:
-
-	int mSocketFD;				///< underlying file descriptor
-	char mDestination[256];		///< address to which packets are sent
-	char mSource[256];		///< return address of most recent received packet
-
-public:
-
-	/** An almost-does-nothing constructor. */
-	DatagramSocket();
-
-	virtual ~DatagramSocket();
-
-	/** Return the address structure size for this socket type. */
-	virtual size_t addressSize() const = 0;
-
-	/**
-		Send a binary packet.
-		@param buffer The data bytes to send to mDestination.
-		@param length Number of bytes to send, or strlen(buffer) if defaulted to -1.
-		@return number of bytes written, or -1 on error.
-	*/
-	int write( const char * buffer, size_t length);
-
-	/**
-		Send a C-style string packet.
-		@param buffer The data bytes to send to mDestination.
-		@return number of bytes written, or -1 on error.
-	*/
-	int write( const char * buffer);
-
-	/**
-		Send a binary packet.
-		@param buffer The data bytes to send to mSource.
-		@param length Number of bytes to send, or strlen(buffer) if defaulted to -1.
-		@return number of bytes written, or -1 on error.
-	*/
-	int writeBack(const char * buffer, size_t length);
-
-	/**
-		Send a C-style string packet.
-		@param buffer The data bytes to send to mSource.
-		@return number of bytes written, or -1 on error.
-	*/
-	int writeBack(const char * buffer);
-
-
-	/**
-		Receive a packet.
-		@param buffer A char[MAX_UDP_LENGTH] procured by the caller.
-		@return The number of bytes received or -1 on non-blocking pass.
-	*/
-	int read(char* buffer, size_t length);
-
-	/**
-		Receive a packet with a timeout.
-		@param buffer A char[MAX_UDP_LENGTH] procured by the caller.
-		@param maximum wait time in milliseconds
-		@return The number of bytes received or -1 on timeout.
-	*/
-	int read(char* buffer, size_t length, unsigned timeout);
-
-
-	/** Send a packet to a given destination, other than the default. */
-	int send(const struct sockaddr *dest, const char * buffer, size_t length);
-
-	/** Send a C-style string to a given destination, other than the default. */
-	int send(const struct sockaddr *dest, const char * buffer);
-
-	/** Make the socket non-blocking. */
-	void nonblocking();
-
-	/** Make the socket blocking (the default). */
-	void blocking();
-
-	/** Close the socket. */
-	void close();
-
-};
-
-
-
-/** UDP/IP User Datagram Socket */
-class UDPSocket : public DatagramSocket {
-
-public:
-
-	/** Open a USP socket with an OS-assigned port and no default destination. */
-	UDPSocket(const char *localIP, unsigned short localPort);
-
-	/** Given a full specification, open the socket and set the dest address. */
-	UDPSocket(const char *localIP, unsigned short localPort,
-		  const char *remoteIP, unsigned short remotePort);
-
-	/** Set the destination port. */
-	void destination( unsigned short wDestPort, const char * wDestIP );
-
-	/** Return the actual port number in use. */
-	unsigned short port() const;
-
-	/** Open and bind the UDP socket to a local port. */
-	void open(unsigned short localPort=0, const char *wlocalIP="127.0.0.1");
-
-	/** Give the return address of the most recently received packet. */
-	const struct sockaddr_in* source() const { return (const struct sockaddr_in*)mSource; }
-
-	size_t addressSize() const { return sizeof(struct sockaddr_in); }
-
-};
-
-#endif
-
-
-
-// vim:ts=4:sw=4

CommonLibs/Threads.cpp

@@ -1,6 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
 *
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -24,16 +25,24 @@
 */
 
 
-
-
+#include <string.h>
+#include <sys/types.h>
 
 #include "Threads.h"
 #include "Timeval.h"
+#include "Logger.h"
+
+#ifndef gettid
+#include <sys/syscall.h>
+#define gettid() syscall(SYS_gettid)
+#endif
 
 
 using namespace std;
 
-
+#ifndef HAVE_ATOMIC_OPS
+	pthread_mutex_t atomic_ops_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
 
 
 Mutex gStreamLock;		///< Global lock to control access to cout and cerr.
@@ -102,6 +111,25 @@ void Signal::wait(Mutex& wMutex, unsigned timeout) const
 	pthread_cond_timedwait(&mSignal,&wMutex.mMutex,&waitTime);
 }
 
+void set_selfthread_name(const char *name)
+{
+	pthread_t selfid = pthread_self();
+	pid_t tid = gettid();
+	if (pthread_setname_np(selfid, name) == 0) {
+		LOG(INFO) << "Thread "<< selfid << " (task " << tid << ") set name: " << name;
+	} else {
+		char buf[256];
+		int err = errno;
+		char* err_str = strerror_r(err, buf, sizeof(buf));
+		LOG(NOTICE) << "Thread "<< selfid << " (task " << tid << ") set name \"" << name << "\" failed: (" << err << ") " << err_str;
+	}
+}
+
+void thread_enable_cancel(bool cancel)
+{
+	cancel ? pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) :
+		 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
+}
 
 void Thread::start(void *(*task)(void*), void *arg)
 {
@@ -110,8 +138,10 @@ void Thread::start(void *(*task)(void*), void *arg)
 	// (pat) Moved initialization to constructor to avoid crash in destructor.
 	//res = pthread_attr_init(&mAttrib);
 	//assert(!res);
-	res = pthread_attr_setstacksize(&mAttrib, mStackSize);
-	assert(!res);
+	if (mStackSize != 0) {
+		res = pthread_attr_setstacksize(&mAttrib, mStackSize);
+		assert(!res);
+	}
 	res = pthread_create(&mThread, &mAttrib, task, arg);
 	assert(!res);
 }

CommonLibs/Threads.h

@@ -1,6 +1,8 @@
 /*
 * Copyright 2008, 2011 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -26,6 +28,8 @@
 #ifndef THREADS_H
 #define THREADS_H
 
+#include "config.h"
+
 #include <pthread.h>
 #include <iostream>
 #include <assert.h>
@@ -141,6 +145,9 @@ class Signal {
 #define START_THREAD(thread,function,argument) \
 	thread.start((void *(*)(void*))function, (void*)argument);
 
+void set_selfthread_name(const char *name);
+void thread_enable_cancel(bool cancel);
+
 /** A C++ wrapper for pthread threads.  */
 class Thread {
 
@@ -155,7 +162,7 @@ class Thread {
 	public:
 
 	/** Create a thread in a non-running state. */
-	Thread(size_t wStackSize = (65536*4)):mThread((pthread_t)0) {
+	Thread(size_t wStackSize = 0):mThread((pthread_t)0) {
 		pthread_attr_init(&mAttrib);	// (pat) moved this here.
 		mStackSize=wStackSize;
 	}
@@ -179,12 +186,34 @@ class Thread {
 		}
 	}
 
-	/** Send cancelation to thread */
+	/** Send cancellation to thread */
 	void cancel() { pthread_cancel(mThread); }
 };
 
+#ifdef HAVE_ATOMIC_OPS
+#define osmo_trx_sync_fetch_and_and(ptr, value) __sync_fetch_and_and((ptr), (value))
+#define osmo_trx_sync_or_and_fetch(ptr, value) __sync_or_and_fetch((ptr), (value))
+#else
+extern pthread_mutex_t atomic_ops_mutex;
+static inline int osmo_trx_sync_fetch_and_and(int *ptr, int value)
+{
+	pthread_mutex_lock(&atomic_ops_mutex);
+	int tmp = *ptr;
+	*ptr &= value;
+	pthread_mutex_unlock(&atomic_ops_mutex);
+	return tmp;
+}
 
-
+static inline int osmo_trx_sync_or_and_fetch(int *ptr, int value)
+{
+	int tmp;
+	pthread_mutex_lock(&atomic_ops_mutex);
+	*ptr |= value;
+	tmp = *ptr;
+	pthread_mutex_unlock(&atomic_ops_mutex);
+	return tmp;
+}
+#endif
 
 #endif
 // vim: ts=4 sw=4

CommonLibs/Timeval.cpp

@@ -1,6 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
 *
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -27,43 +28,49 @@
 
 #include "Timeval.h"
 
+extern "C" {
+#include <osmocom/core/timer.h>
+}
+
 using namespace std;
 
+void Timeval::now()
+{
+	osmo_clock_gettime(CLOCK_REALTIME, &mTimespec);
+}
+
 void Timeval::future(unsigned offset)
 {
 	now();
 	unsigned sec = offset/1000;
 	unsigned msec = offset%1000;
-	mTimeval.tv_usec += msec*1000;
-	mTimeval.tv_sec += sec;
-	if (mTimeval.tv_usec>1000000) {
-		mTimeval.tv_usec -= 1000000;
-		mTimeval.tv_sec += 1;
+	mTimespec.tv_nsec += msec*1000*1000;
+	mTimespec.tv_sec += sec;
+	if (mTimespec.tv_nsec > 1000*1000*1000) {
+		mTimespec.tv_nsec -= 1000*1000*1000;
+		mTimespec.tv_sec += 1;
 	}
 }
 
 
 struct timespec Timeval::timespec() const
 {
-	struct timespec retVal;
-	retVal.tv_sec = mTimeval.tv_sec;
-	retVal.tv_nsec = 1000 * (long)mTimeval.tv_usec;
-	return retVal;
+	return mTimespec;
 }
 
 
 bool Timeval::passed() const
 {
 	Timeval nowTime;
-	if (nowTime.mTimeval.tv_sec < mTimeval.tv_sec) return false;
-	if (nowTime.mTimeval.tv_sec > mTimeval.tv_sec) return true;
-	if (nowTime.mTimeval.tv_usec > mTimeval.tv_usec) return true;
+	if (nowTime.mTimespec.tv_sec < mTimespec.tv_sec) return false;
+	if (nowTime.mTimespec.tv_sec > mTimespec.tv_sec) return true;
+	if (nowTime.mTimespec.tv_nsec >= mTimespec.tv_nsec) return true;
 	return false;
 }
 
 double Timeval::seconds() const
 {
-	return ((double)mTimeval.tv_sec) + 1e-6*((double)mTimeval.tv_usec);
+	return ((double)mTimespec.tv_sec) + 1e-9*((double)mTimespec.tv_nsec);
 }
 
 
@@ -72,8 +79,8 @@ long Timeval::delta(const Timeval& other) const
 {
 	// 2^31 milliseconds is just over 4 years.
 	int32_t deltaS = other.sec() - sec();
-	int32_t deltaUs = other.usec() - usec();
-	return 1000*deltaS + deltaUs/1000;
+	int32_t deltaNs = other.nsec() - nsec();
+	return 1000*deltaS + deltaNs/1000000;
 }
 
 
@@ -81,15 +88,16 @@ long Timeval::delta(const Timeval& other) const
 
 ostream& operator<<(ostream& os, const Timeval& tv)
 {
-	os.setf( ios::fixed, ios::floatfield );
+	ios_base::fmtflags flags_backup = os.setf( ios::fixed, ios::floatfield );
 	os << tv.seconds();
+	os.flags( flags_backup );
 	return os;
 }
 
 
 ostream& operator<<(ostream& os, const struct timespec& ts)
 {
-	os << ts.tv_sec << "," << ts.tv_nsec;
+	os << ts.tv_sec << "," << ts.tv_nsec/1000;
 	return os;
 }
 

CommonLibs/Timeval.h

@@ -1,6 +1,8 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -42,12 +44,12 @@ class Timeval {
 
 	private:
 
-	struct timeval mTimeval;
+	struct timespec mTimespec;
 
 	public:
 
-	/** Set the value to gettimeofday. */
-	void now() { gettimeofday(&mTimeval,NULL); }
+	/** Set the value to current time. */
+	void now();
 
 	/** Set the value to gettimeofday plus an offset. */
 	void future(unsigned ms);
@@ -55,16 +57,18 @@ class Timeval {
 	//@{
 	Timeval(unsigned sec, unsigned usec)
 	{
-		mTimeval.tv_sec = sec;
-		mTimeval.tv_usec = usec;
+		mTimespec.tv_sec = sec;
+		mTimespec.tv_nsec = usec*1000;
 	}
 
 	Timeval(const struct timeval& wTimeval)
-		:mTimeval(wTimeval)
-	{}
+	{
+		mTimespec.tv_sec = wTimeval.tv_sec;
+		mTimespec.tv_nsec = wTimeval.tv_sec*1000;
+	}
 
 	/**
-		Create a Timeval offset into the future.
+		Create a Timespec offset into the future.
 		@param offset milliseconds
 	*/
 	Timeval(unsigned offset=0) { future(offset); }
@@ -76,10 +80,11 @@ class Timeval {
 	/** Return total seconds. */
 	double seconds() const;
 
-	uint32_t sec() const { return mTimeval.tv_sec; }
-	uint32_t usec() const { return mTimeval.tv_usec; }
+	uint32_t sec() const { return mTimespec.tv_sec; }
+	uint32_t usec() const { return mTimespec.tv_nsec / 1000; }
+	uint32_t nsec() const { return mTimespec.tv_nsec; }
 
-	/** Return differnce from other (other-self), in ms. */
+	/** Return difference from other (other-self), in ms. */
 	long delta(const Timeval& other) const;
 
 	/** Elapsed time in ms. */
@@ -88,11 +93,11 @@ class Timeval {
 	/** Remaining time in ms. */
 	long remaining() const { return -elapsed(); }
 
-	/** Return true if the time has passed, as per gettimeofday. */
+	/** Return true if the time has passed, as per clock_gettime(CLOCK_REALTIME). */
 	bool passed() const;
 
 	/** Add a given number of minutes to the time. */
-	void addMinutes(unsigned minutes) { mTimeval.tv_sec += minutes*60; }
+	void addMinutes(unsigned minutes) { mTimespec.tv_sec += minutes*60; }
 
 };
 

CommonLibs/Utils.cpp

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2018 sysmocom - s.f.m.c. GmbH
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <vector>
+#include <string>
+#include <sstream>
+
+std::vector<std::string> comma_delimited_to_vector(const char* opt)
+{
+	std::string str = std::string(opt);
+	std::vector<std::string> result;
+	std::stringstream ss(str);
+
+	while( ss.good() )
+	{
+	    std::string substr;
+	    getline(ss, substr, ',');
+	    result.push_back(substr);
+	}
+	return result;
+}

CommonLibs/Utils.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2018 sysmocom - s.f.m.c. GmbH
+ *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#pragma once
+
+#include <vector>
+#include <string>
+
+std::vector<std::string> comma_delimited_to_vector(const char* opt);

CommonLibs/Vector.h

@@ -2,6 +2,8 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -32,11 +34,14 @@
 #include <string.h>
 #include <iostream>
 #include <assert.h>
-// We cant use Logger.h in this file...
+#include <stdlib.h>
+
+// We can't use Logger.h in this file...
 extern int gVectorDebug;
 #define BVDEBUG(msg) if (gVectorDebug) {std::cout << msg;}
 
-
+typedef void (*vector_free_func)(void* wData);
+typedef void *(*vector_alloc_func)(size_t newSize);
 
 /**
 	A simplified Vector template with aliases.
@@ -60,6 +65,8 @@ template <class T> class Vector {
 	T* mData;		///< allocated data block, if any
 	T* mStart;		///< start of useful data
 	T* mEnd;		///< end of useful data + 1
+	vector_alloc_func mAllocFunc; ///< function used to alloc new mData during resize.
+	vector_free_func mFreeFunc; ///< function used to free mData.
 
 	public:
 
@@ -85,9 +92,19 @@ template <class T> class Vector {
 	/** Change the size of the Vector, discarding content. */
 	void resize(size_t newSize)
 	{
-		if (mData!=NULL) delete[] mData;
+		if (mData!=NULL) {
+			if (mFreeFunc)
+				mFreeFunc(mData);
+			else
+				delete[] mData;
+		}
 		if (newSize==0) mData=NULL;
-		else mData = new T[newSize];
+		else {
+			if (mAllocFunc)
+				mData = (T*) mAllocFunc(newSize);
+			else
+				mData = new T[newSize];
+		}
 		mStart = mData;
 		mEnd = mStart + newSize;
 	}
@@ -107,7 +124,7 @@ template <class T> class Vector {
 	void clone(const Vector<T>& other)
 	{
 		resize(other.size());
-		memcpy(mData,other.mStart,other.bytes());
+		other.copyTo(*this);
 	}
 
 
@@ -116,29 +133,31 @@ template <class T> class Vector {
 	//@{
 
 	/** Build an empty Vector of a given size. */
-	Vector(size_t wSize=0):mData(NULL) { resize(wSize); }
+	Vector(size_t wSize=0, vector_alloc_func wAllocFunc=NULL, vector_free_func wFreeFunc=NULL)
+		:mData(NULL), mAllocFunc(wAllocFunc), mFreeFunc(wFreeFunc)
+	{ resize(wSize); }
 
 	/** Build a Vector by moving another. */
 	Vector(Vector<T>&& other)
-		:mData(other.mData),mStart(other.mStart),mEnd(other.mEnd)
+		:mData(other.mData),mStart(other.mStart),mEnd(other.mEnd), mAllocFunc(other.mAllocFunc),  mFreeFunc(other.mFreeFunc)
 	{ other.mData=NULL; }
 
 	/** Build a Vector by copying another. */
-	Vector(const Vector<T>& other):mData(NULL) { clone(other); }
+	Vector(const Vector<T>& other):mData(NULL), mAllocFunc(other.mAllocFunc), mFreeFunc(other.mFreeFunc) { clone(other); }
 
 	/** Build a Vector with explicit values. */
-	Vector(T* wData, T* wStart, T* wEnd)
-		:mData(wData),mStart(wStart),mEnd(wEnd)
+	Vector(T* wData, T* wStart, T* wEnd, vector_alloc_func wAllocFunc=NULL, vector_free_func wFreeFunc=NULL)
+		:mData(wData),mStart(wStart),mEnd(wEnd), mAllocFunc(wAllocFunc), mFreeFunc(wFreeFunc)
 	{ }
 
 	/** Build a vector from an existing block, NOT to be deleted upon destruction. */
-	Vector(T* wStart, size_t span)
-		:mData(NULL),mStart(wStart),mEnd(wStart+span)
+	Vector(T* wStart, size_t span, vector_alloc_func wAllocFunc=NULL, vector_free_func wFreeFunc=NULL)
+		:mData(NULL),mStart(wStart),mEnd(wStart+span),mAllocFunc(wAllocFunc), mFreeFunc(wFreeFunc)
 	{ }
 
 	/** Build a Vector by concatenation. */
-	Vector(const Vector<T>& other1, const Vector<T>& other2)
-		:mData(NULL)
+	Vector(const Vector<T>& other1, const Vector<T>& other2, vector_alloc_func wAllocFunc=NULL, vector_free_func wFreeFunc=NULL)
+		:mData(NULL), mAllocFunc(wAllocFunc), mFreeFunc(wFreeFunc)
 	{
 		resize(other1.size()+other2.size());
 		memcpy(mStart, other1.mStart, other1.bytes());
@@ -162,6 +181,8 @@ template <class T> class Vector {
 		mData=other.mData;
 		mStart=other.mStart;
 		mEnd=other.mEnd;
+		mAllocFunc=other.mAllocFunc;
+		mFreeFunc=other.mFreeFunc;
 		other.mData=NULL;
 	}
 
@@ -204,10 +225,15 @@ template <class T> class Vector {
 	*/
 	void copyToSegment(Vector<T>& other, size_t start, size_t span) const
 	{
-		T* base = other.mStart + start;
-		assert(base+span<=other.mEnd);
+		unsigned int i;
+		T* dst = other.mStart + start;
+		T* src = mStart;
+		assert(dst+span<=other.mEnd);
 		assert(mStart+span<=mEnd);
-		memcpy(base,mStart,span*sizeof(T));
+		for (i = 0; i < span; i++, src++, dst++)
+			*dst = *src;
+		/*TODO if not non-trivially copyable type class, optimize:
+		memcpy(dst,mStart,span*sizeof(T)); */
 	}
 
 	/** Copy all of this Vector to a segment of another Vector. */

CommonLibs/config_defs.h

@@ -0,0 +1,20 @@
+#pragma once
+
+/*
+ * This file contains structures used by both VTY (C, dir CommonLibs) and
+ * osmo-trx (CXX, dir Transceiver52)
+ */
+
+enum FillerType {
+  FILLER_DUMMY,
+  FILLER_ZERO,
+  FILLER_NORM_RAND,
+  FILLER_EDGE_RAND,
+  FILLER_ACCESS_RAND,
+};
+
+enum ReferenceType {
+  REF_INTERNAL,
+  REF_EXTERNAL,
+  REF_GPS,
+};

CommonLibs/debug.c

@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2018-2019 sysmocom - s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+#include <pthread.h>
+
+#include <osmocom/core/logging.h>
+#include <osmocom/core/utils.h>
+#include "debug.h"
+
+/* default categories */
+static const struct log_info_cat default_categories[] = {
+	[DMAIN] = {
+		.name = "DMAIN",
+		.description = "Main generic category",
+		.color = NULL,
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DTRXCLK] = {
+			.name = "DTRXCLK",
+			.description = "TRX Master Clock",
+			.color = NULL,
+			.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DTRXCTRL] = {
+			.name = "DTRXCTRL",
+			.description = "TRX CTRL interface",
+			.color = "\033[1;33m",
+			.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DTRXDDL] = {
+			.name = "DTRXDDL",
+			.description = "TRX Data interface Downlink",
+			.color = NULL,
+			.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DTRXDUL] = {
+			.name = "DTRXDUL",
+			.description = "TRX CTRL interface Uplink",
+			.color = NULL,
+			.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+	[DDEV] = {
+		.name = "DDEV",
+		.description = "Device/Driver specific code",
+		.color = NULL,
+		.enabled = 1, .loglevel = LOGL_INFO,
+	},
+	[DLMS] = {
+		.name = "DLMS",
+		.description = "Logging from within LimeSuite itself",
+		.color = NULL,
+		.enabled = 1, .loglevel = LOGL_NOTICE,
+	},
+};
+
+const struct log_info log_info = {
+	.cat = default_categories,
+	.num_cat = ARRAY_SIZE(default_categories),
+};

CommonLibs/debug.h

@@ -0,0 +1,27 @@
+#pragma once
+
+#include <stdbool.h>
+#include <pthread.h>
+
+#include <osmocom/core/logging.h>
+
+extern const struct log_info log_info;
+
+/* Debug Areas of the code */
+enum {
+	DMAIN,
+	DTRXCLK,
+	DTRXCTRL,
+	DTRXDDL,
+	DTRXDUL,
+	DDEV,
+	DLMS,
+};
+
+#define CLOGC(category, level, fmt, args...) do { \
+	LOGP(category, level, "[tid=%lu] " fmt, pthread_self(), ##args);  \
+} while(0)
+
+#define CLOGCHAN(chan, category, level, fmt, args...) do { \
+	LOGP(category, level, "[tid=%lu][chan=%lu] " fmt, pthread_self(), chan, ##args);  \
+} while(0)

CommonLibs/osmo_signal.h

@@ -0,0 +1,57 @@
+/* Generic signalling/notification infrastructure */
+/* (C) 2018 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * All Rights Reserved
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * 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/>.
+ *
+ */
+
+#pragma once
+
+#include <osmocom/core/signal.h>
+
+/* Signalling subsystems */
+enum signal_subsystems {
+	SS_MAIN,
+	SS_DEVICE,
+};
+
+/* SS_MAIN signals */
+enum SS_MAIN {
+	S_MAIN_STOP_REQUIRED, /* TRX fatal error, it should be stopped */
+};
+
+/* SS_DEVICE signals */
+enum SS_DEVICE {
+	/* Device internal counters changed. Counters are provided as cb data
+	   (struct device_counters). Must be sent with PTHREAD_CANCEL_DISABLE
+	   to avoid deadlocks in case osmo-trx process is asked to exit. */
+	S_DEVICE_COUNTER_CHANGE,
+};
+
+/* signal cb for signal <SS_DEVICE,S_DEVICE_COUNTER_CHANGE> */
+struct device_counters {
+	size_t chan;
+	unsigned int rx_overruns;
+	unsigned int tx_underruns;
+	unsigned int rx_dropped_events;
+	unsigned int rx_dropped_samples;
+	unsigned int tx_dropped_events;
+	unsigned int tx_dropped_samples;
+};

CommonLibs/trx_rate_ctr.cpp

@@ -0,0 +1,336 @@
+/*
+ * Copyright (C) 2019 sysmocom - s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+/*
+ * rate_ctr API uses several osmocom select loop features, and as a result,
+ * calls to it must be done through the main thread (the one running the osmocom
+ * loop in osmo-trx).
+ * Since read/write from/to SDR is done in separate threads (even read and write
+ * each use a different thread), we must use some sort of message passing system
+ * between main thread feeding rate_ctr structures and the Rx/Tx threads
+ * generating the events.
+ * The idea is that upon read/write issues, lower layers (SDR APIs) provide us with
+ * underrun/overrun/droppedPackets information, and in that case we pass that up
+ * the stack through signal <SS_DEVICE,S_DEVICE_COUNTER_CHANGE> with signal_cb
+ * being a pointer to a "struct device_counters" structure, which contains
+ * device (implementation agnostic) statful counters for different kind of
+ * statistics.
+ * That signal is processed here in device_sig_cb, where a copy of the "struct
+ * device_counters" structure is held and the main thread is instructed through
+ * a timerfd to update rate_ctr APIs against this copy. All this is done inside
+ * a mutex to avoid different race conditions (between Rx andTx threads, and
+ * between Rx/Tx and main thread). For the same reason, callers of signal
+ * <SS_DEVICE,S_DEVICE_COUNTER_CHANGE> (device_sig_cb), that is Rx/Tx threads,
+ * must do so with PTHREAD_CANCEL_DISABLE, in order to avoid possible deadlocks
+ * in case the main thread decides to cancel other threads due to a shutdown
+ * operation (fi SIGKILL received)
+ */
+
+#include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+extern "C" {
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/rate_ctr.h>
+#include <osmocom/core/select.h>
+#include <osmocom/core/stats.h>
+#include <osmocom/core/timer.h>
+
+#include "osmo_signal.h"
+#include "trx_vty.h"
+#include "trx_rate_ctr.h"
+}
+#include "Threads.h"
+#include "Logger.h"
+
+/* Used in ctrs_pending, when set it means that channel slot contains unused
+   (non-pending) counter data */
+#define PENDING_CHAN_NONE SIZE_MAX
+
+static void *trx_rate_ctr_ctx;
+
+static struct rate_ctr_group** rate_ctrs;
+static struct device_counters* ctrs_pending;
+static size_t chan_len;
+static struct osmo_fd rate_ctr_timerfd;
+static Mutex rate_ctr_mutex;
+
+struct osmo_timer_list threshold_timer;
+static LLIST_HEAD(threshold_list);
+static int threshold_timer_sched_secs;
+static bool threshold_initied;
+
+const struct value_string rate_ctr_intv[] = {
+	{ RATE_CTR_INTV_SEC,	"per-second" },
+	{ RATE_CTR_INTV_MIN,	"per-minute" },
+	{ RATE_CTR_INTV_HOUR,	"per-hour" },
+	{ RATE_CTR_INTV_DAY, 	"per-day" },
+	{ 0, NULL }
+};
+
+const struct value_string trx_chan_ctr_names[] = {
+	{ TRX_CTR_RX_OVERRUNS,	"rx_overruns" },
+	{ TRX_CTR_TX_UNDERRUNS,	"tx_underruns" },
+	{ TRX_CTR_RX_DROP_EV,	"rx_drop_events" },
+	{ TRX_CTR_RX_DROP_SMPL,	"rx_drop_samples" },
+	{ TRX_CTR_TX_DROP_EV,	"tx_drop_events" },
+	{ TRX_CTR_TX_DROP_SMPL,	"tx_drop_samples" },
+	{ 0, NULL }
+};
+
+static const struct rate_ctr_desc trx_chan_ctr_desc[] = {
+	[TRX_CTR_RX_OVERRUNS]		= { "device:rx_overruns",	"Number of Rx overruns in FIFO queue" },
+	[TRX_CTR_TX_UNDERRUNS]		= { "device:tx_underruns",	"Number of Tx underruns in FIFO queue" },
+	[TRX_CTR_RX_DROP_EV]		= { "device:rx_drop_events",	"Number of times Rx samples were dropped by HW" },
+	[TRX_CTR_RX_DROP_SMPL]		= { "device:rx_drop_samples",	"Number of Rx samples dropped by HW" },
+	[TRX_CTR_TX_DROP_EV]		= { "device:tx_drop_events",	"Number of times Tx samples were dropped by HW" },
+	[TRX_CTR_TX_DROP_SMPL]		= { "device:tx_drop_samples",	"Number of Tx samples dropped by HW" }
+};
+
+static const struct rate_ctr_group_desc trx_chan_ctr_group_desc = {
+	.group_name_prefix		= "trx:chan",
+	.group_description		= "osmo-trx statistics",
+	.class_id			= OSMO_STATS_CLASS_GLOBAL,
+	.num_ctr			= ARRAY_SIZE(trx_chan_ctr_desc),
+	.ctr_desc			= trx_chan_ctr_desc,
+};
+
+static int rate_ctr_timerfd_cb(struct osmo_fd *ofd, unsigned int what) {
+	size_t chan;
+	struct rate_ctr *ctr;
+	LOGC(DMAIN, NOTICE) << "Main thread is updating counters";
+	rate_ctr_mutex.lock();
+	for (chan = 0; chan < chan_len; chan++) {
+		if (ctrs_pending[chan].chan == PENDING_CHAN_NONE)
+			continue;
+		LOGCHAN(chan, DMAIN, INFO) << "rate_ctr update";
+		ctr = &rate_ctrs[chan]->ctr[TRX_CTR_RX_OVERRUNS];
+		rate_ctr_add(ctr, ctrs_pending[chan].rx_overruns - ctr->current);
+		ctr = &rate_ctrs[chan]->ctr[TRX_CTR_TX_UNDERRUNS];
+		rate_ctr_add(ctr, ctrs_pending[chan].tx_underruns - ctr->current);
+		ctr = &rate_ctrs[chan]->ctr[TRX_CTR_RX_DROP_EV];
+		rate_ctr_add(ctr, ctrs_pending[chan].rx_dropped_events - ctr->current);
+		ctr = &rate_ctrs[chan]->ctr[TRX_CTR_RX_DROP_SMPL];
+		rate_ctr_add(ctr, ctrs_pending[chan].rx_dropped_samples - ctr->current);
+		ctr = &rate_ctrs[chan]->ctr[TRX_CTR_TX_DROP_EV];
+		rate_ctr_add(ctr, ctrs_pending[chan].tx_dropped_events - ctr->current);
+		ctr = &rate_ctrs[chan]->ctr[TRX_CTR_TX_DROP_SMPL];
+		rate_ctr_add(ctr, ctrs_pending[chan].tx_dropped_samples - ctr->current);
+
+		/* Mark as done */
+		ctrs_pending[chan].chan = PENDING_CHAN_NONE;
+	}
+	if (osmo_timerfd_disable(&rate_ctr_timerfd) < 0)
+		LOGC(DMAIN, ERROR) << "Failed to disable timerfd";
+	rate_ctr_mutex.unlock();
+	return 0;
+}
+
+/* Callback function to be called every time we receive a signal from DEVICE */
+static int device_sig_cb(unsigned int subsys, unsigned int signal,
+			 void *handler_data, void *signal_data)
+{
+	struct device_counters *ctr;
+	/* Delay sched around 20 ms, in case we receive several calls from several
+	 * channels batched */
+	struct timespec next_sched = {.tv_sec = 0, .tv_nsec = 20*1000*1000};
+	/* no automatic re-trigger */
+	struct timespec intv_sched = {.tv_sec = 0, .tv_nsec = 0};
+
+	switch (signal) {
+	case S_DEVICE_COUNTER_CHANGE:
+		ctr = (struct device_counters *)signal_data;
+		LOGCHAN(ctr->chan, DMAIN, NOTICE) << "Received counter change from radioDevice";
+		rate_ctr_mutex.lock();
+		ctrs_pending[ctr->chan] = *ctr;
+		if (osmo_timerfd_schedule(&rate_ctr_timerfd, &next_sched, &intv_sched) < 0) {
+			LOGC(DMAIN, ERROR) << "Failed to schedule timerfd: " << errno << " = "<< strerror(errno);
+		}
+		rate_ctr_mutex.unlock();
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+/************************************
+ * ctr_threshold  APIs
+ ************************************/
+static const char* ctr_threshold_2_vty_str(struct ctr_threshold *ctr)
+{
+	static char buf[256];
+	int rc = 0;
+	rc += snprintf(buf, sizeof(buf), "ctr-error-threshold %s", get_value_string(trx_chan_ctr_names, ctr->ctr_id));
+	rc += snprintf(buf + rc, sizeof(buf) - rc, " %d %s", ctr->val, get_value_string(rate_ctr_intv, ctr->intv));
+	return buf;
+}
+
+static void threshold_timer_cb(void *data)
+{
+	struct ctr_threshold *ctr_thr;
+	struct rate_ctr *rate_ctr;
+	size_t chan;
+	LOGC(DMAIN, DEBUG) << "threshold_timer_cb fired!";
+
+	llist_for_each_entry(ctr_thr, &threshold_list, list) {
+		for (chan = 0; chan < chan_len; chan++) {
+			rate_ctr = &rate_ctrs[chan]->ctr[ctr_thr->ctr_id];
+			LOGCHAN(chan, DMAIN, INFO) << "checking threshold: " << ctr_threshold_2_vty_str(ctr_thr)
+						   << " ("<< rate_ctr->intv[ctr_thr->intv].rate << " vs " << ctr_thr->val << ")";
+			if (rate_ctr->intv[ctr_thr->intv].rate >= ctr_thr->val) {
+				LOGCHAN(chan, DMAIN, FATAL) << "threshold reached, stopping! " << ctr_threshold_2_vty_str(ctr_thr)
+							   << " ("<< rate_ctr->intv[ctr_thr->intv].rate << " vs " << ctr_thr->val << ")";
+				osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL);
+				return;
+			}
+		}
+	}
+	osmo_timer_schedule(&threshold_timer, threshold_timer_sched_secs, 0);
+}
+
+static size_t ctr_threshold_2_seconds(struct ctr_threshold *ctr)
+{
+	size_t mult = 0;
+	switch (ctr->intv) {
+	case RATE_CTR_INTV_SEC:
+		mult = 1;
+		break;
+	case RATE_CTR_INTV_MIN:
+		mult = 60;
+		break;
+	case RATE_CTR_INTV_HOUR:
+		mult = 60*60;
+		break;
+	case RATE_CTR_INTV_DAY:
+		mult = 60*60*24;
+		break;
+	default:
+		OSMO_ASSERT(false);
+	}
+	return mult;
+}
+
+static void threshold_timer_update_intv() {
+	struct ctr_threshold *ctr, *min_ctr;
+	size_t secs, min_secs;
+
+	/* Avoid scheduling timer until itself and other structures are prepared
+	   by trx_rate_ctr_init */
+	if (!threshold_initied)
+		return;
+
+	if (llist_empty(&threshold_list)) {
+		if (osmo_timer_pending(&threshold_timer))
+			osmo_timer_del(&threshold_timer);
+		return;
+	}
+
+	min_ctr = llist_first_entry(&threshold_list, struct ctr_threshold, list);
+	min_secs = ctr_threshold_2_seconds(min_ctr);
+
+	llist_for_each_entry(ctr, &threshold_list, list) {
+		secs = ctr_threshold_2_seconds(ctr);
+		if( min_secs > secs)
+			min_secs = secs;
+	}
+
+
+	threshold_timer_sched_secs = OSMO_MAX(min_secs / 2 - 1, 1);
+	LOGC(DMAIN, INFO) << "New ctr-error-threshold check interval: "
+			  << threshold_timer_sched_secs << " seconds";
+	osmo_timer_schedule(&threshold_timer, threshold_timer_sched_secs, 0);
+}
+
+/* Init rate_ctr subsystem. Expected to be called during process start by main thread before VTY is ready */
+void trx_rate_ctr_init(void *ctx, struct trx_ctx* trx_ctx)
+{
+	size_t  i;
+	trx_rate_ctr_ctx = ctx;
+	chan_len = trx_ctx->cfg.num_chans;
+	ctrs_pending = (struct device_counters*) talloc_zero_size(ctx, chan_len * sizeof(struct device_counters));
+	rate_ctrs = (struct rate_ctr_group**) talloc_zero_size(ctx, chan_len * sizeof(struct rate_ctr_group*));
+
+	for (i = 0; i < chan_len; i++) {
+		ctrs_pending[i].chan = PENDING_CHAN_NONE;
+		rate_ctrs[i] = rate_ctr_group_alloc(ctx, &trx_chan_ctr_group_desc, i);
+		if (!rate_ctrs[i]) {
+			LOGCHAN(i, DMAIN, ERROR) << "Failed to allocate rate ctr";
+			exit(1);
+		}
+	}
+	rate_ctr_timerfd.fd = -1;
+	if (osmo_timerfd_setup(&rate_ctr_timerfd, rate_ctr_timerfd_cb, NULL) < 0) {
+		LOGC(DMAIN, ERROR) << "Failed to setup timerfd";
+		exit(1);
+	}
+	osmo_signal_register_handler(SS_DEVICE, device_sig_cb, NULL);
+
+	/* Now set up threshold checks */
+	threshold_initied = true;
+	osmo_timer_setup(&threshold_timer, threshold_timer_cb, NULL);
+	threshold_timer_update_intv();
+}
+
+void trx_rate_ctr_threshold_add(struct ctr_threshold *ctr)
+{
+	struct ctr_threshold *new_ctr;
+
+	new_ctr = talloc_zero(trx_rate_ctr_ctx, struct ctr_threshold);
+	*new_ctr = *ctr;
+	LOGC(DMAIN, NOTICE) << "Adding new threshold check: " << ctr_threshold_2_vty_str(new_ctr);
+	llist_add(&new_ctr->list, &threshold_list);
+	threshold_timer_update_intv();
+}
+
+int trx_rate_ctr_threshold_del(struct ctr_threshold *del_ctr)
+{
+	struct ctr_threshold *ctr;
+
+	llist_for_each_entry(ctr, &threshold_list, list) {
+		if (ctr->intv != del_ctr->intv ||
+		    ctr->ctr_id != del_ctr->ctr_id ||
+		    ctr->val != del_ctr->val)
+			continue;
+
+		LOGC(DMAIN, NOTICE) << "Deleting threshold check: " << ctr_threshold_2_vty_str(del_ctr);
+		llist_del(&ctr->list);
+		talloc_free(ctr);
+		threshold_timer_update_intv();
+		return 0;
+	}
+	return -1;
+}
+
+void trx_rate_ctr_threshold_write_config(struct vty *vty, char *indent_prefix)
+{
+	struct ctr_threshold *ctr;
+
+	llist_for_each_entry(ctr, &threshold_list, list) {
+		vty_out(vty, "%s%s%s", indent_prefix, ctr_threshold_2_vty_str(ctr), VTY_NEWLINE);
+	}
+}

CommonLibs/trx_rate_ctr.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include <osmocom/core/rate_ctr.h>
+#include <osmocom/vty/command.h>
+
+enum TrxCtr {
+	TRX_CTR_RX_OVERRUNS,
+	TRX_CTR_TX_UNDERRUNS,
+	TRX_CTR_RX_DROP_EV,
+	TRX_CTR_RX_DROP_SMPL,
+	TRX_CTR_TX_DROP_EV,
+	TRX_CTR_TX_DROP_SMPL,
+};
+
+struct ctr_threshold {
+	/*! Linked list of all counter groups in the system */
+	struct llist_head list;
+	enum rate_ctr_intv intv;
+	enum TrxCtr ctr_id;
+	uint32_t val;
+};
+
+extern const struct value_string rate_ctr_intv[];
+extern const struct value_string trx_chan_ctr_names[];
+
+struct trx_ctx;
+void trx_rate_ctr_init(void *ctx, struct trx_ctx* trx_ctx);
+void trx_rate_ctr_threshold_add(struct ctr_threshold *ctr);
+int trx_rate_ctr_threshold_del(struct ctr_threshold *del_ctr);
+void trx_rate_ctr_threshold_write_config(struct vty *vty, char *indent_prefix);

CommonLibs/trx_vty.c

@@ -0,0 +1,735 @@
+/*
+ * Copyright (C) 2018-2019 sysmocom - s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+#include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
+#include <osmocom/core/rate_ctr.h>
+
+#include <osmocom/vty/command.h>
+#include <osmocom/vty/vty.h>
+#include <osmocom/vty/misc.h>
+
+#include "trx_rate_ctr.h"
+#include "trx_vty.h"
+#include "../config.h"
+
+static struct trx_ctx* g_trx_ctx;
+
+static const struct value_string clock_ref_names[] = {
+	{ REF_INTERNAL,	"internal" },
+	{ REF_EXTERNAL,	"external" },
+	{ REF_GPS,	"gpsdo" },
+	{ 0,		NULL }
+};
+
+const struct value_string filler_names[] = {
+	{ FILLER_DUMMY,		"Dummy bursts (C0 only)" },
+	{ FILLER_ZERO,		"Empty bursts" },
+	{ FILLER_NORM_RAND,	"GMSK Normal Bursts with random payload" },
+	{ FILLER_EDGE_RAND,	"8-PSK Normal Bursts with random payload" },
+	{ FILLER_ACCESS_RAND,	"Access Bursts with random payload" },
+	{ 0,			NULL }
+};
+
+static const struct value_string filler_types[] = {
+	{ FILLER_DUMMY,		"dummy" },
+	{ FILLER_ZERO,		"zero" },
+	{ FILLER_NORM_RAND,	"random-nb-gmsk" },
+	{ FILLER_EDGE_RAND,	"random-nb-8psk" },
+	{ FILLER_ACCESS_RAND,	"random-ab" },
+	{ 0,			NULL }
+};
+
+
+struct trx_ctx *trx_from_vty(struct vty *v)
+{
+        /* It can't hurt to force callers to continue to pass the vty instance
+         * to this function, in case we'd like to retrieve the global
+         * trx instance from the vty at some point in the future. But
+         * until then, just return the global pointer, which should have been
+         * initialized by trx_vty_init().
+         */
+        OSMO_ASSERT(g_trx_ctx);
+        return g_trx_ctx;
+}
+
+enum trx_vty_node {
+	TRX_NODE = _LAST_OSMOVTY_NODE + 1,
+	CHAN_NODE,
+};
+
+static struct cmd_node trx_node = {
+	TRX_NODE,
+	"%s(config-trx)# ",
+	1,
+};
+
+static struct cmd_node chan_node = {
+	CHAN_NODE,
+	"%s(config-trx-chan)# ",
+	1,
+};
+
+DEFUN(cfg_trx, cfg_trx_cmd,
+	"trx",
+	"Configure the TRX\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (!trx)
+		return CMD_WARNING;
+
+	vty->node = TRX_NODE;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_bind_ip, cfg_bind_ip_cmd,
+	"bind-ip A.B.C.D",
+	"Set the IP address for the local bind\n"
+	"IPv4 Address\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	osmo_talloc_replace_string(trx, &trx->cfg.bind_addr, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_remote_ip, cfg_remote_ip_cmd,
+	"remote-ip A.B.C.D",
+	"Set the IP address for the remote BTS\n"
+	"IPv4 Address\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	osmo_talloc_replace_string(trx, &trx->cfg.remote_addr, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_base_port, cfg_base_port_cmd,
+	"base-port <1-65535>",
+	"Set the TRX Base Port\n"
+	"TRX Base Port\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.base_port = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_dev_args, cfg_dev_args_cmd,
+	"dev-args DESC",
+	"Set the device-specific arguments to pass to the device\n"
+	"Device-specific arguments\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	osmo_talloc_replace_string(trx, &trx->cfg.dev_args, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_tx_sps, cfg_tx_sps_cmd,
+	"tx-sps (1|4)",
+	"Set the Tx Samples-per-Symbol\n"
+	"Tx Samples-per-Symbol\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.tx_sps = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_rx_sps, cfg_rx_sps_cmd,
+	"rx-sps (1|4)",
+	"Set the Rx Samples-per-Symbol\n"
+	"Rx Samples-per-Symbol\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.rx_sps = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_clock_ref, cfg_clock_ref_cmd,
+	"clock-ref (internal|external|gpsdo)",
+	"Set the Reference Clock\n"
+	"Enable internal reference (default)\n"
+	"Enable external 10 MHz reference\n"
+	"Enable GPSDO reference\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.clock_ref = get_string_value(clock_ref_names, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_multi_arfcn, cfg_multi_arfcn_cmd,
+	"multi-arfcn (disable|enable)",
+	"Enable multi-ARFCN transceiver (default=disable)\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (strcmp("disable", argv[0]) == 0) {
+		trx->cfg.multi_arfcn = false;
+		return CMD_SUCCESS;
+	}
+
+	if (trx->cfg.num_chans > TRX_MCHAN_MAX) {
+		vty_out(vty, "Up to %i channels are supported for multi-TRX mode%s",
+			TRX_MCHAN_MAX, VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+
+	trx->cfg.multi_arfcn = true;
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_offset, cfg_offset_cmd,
+	"offset FLOAT",
+	"Set the baseband frequency offset (default=0, auto)\n"
+	"Baseband Frequency Offset\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.offset = atof(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_rssi_offset, cfg_rssi_offset_cmd,
+	"rssi-offset FLOAT",
+	"Set the RSSI to dBm offset in dB (default=0)\n"
+	"RSSI to dBm offset in dB\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.rssi_offset = atof(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_swap_channels, cfg_swap_channels_cmd,
+	"swap-channels (disable|enable)",
+	"Swap channels (default=disable)\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (strcmp("disable", argv[0]) == 0) {
+		trx->cfg.swap_channels = false;
+	} else if (strcmp("enable", argv[0]) == 0) {
+		trx->cfg.swap_channels = true;
+	} else {
+		return CMD_WARNING;
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_egprs, cfg_egprs_cmd,
+	"egprs (disable|enable)",
+	"Enable EDGE receiver (default=disable)\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (strcmp("disable", argv[0]) == 0) {
+		trx->cfg.egprs = false;
+	} else if (strcmp("enable", argv[0]) == 0) {
+		trx->cfg.egprs = true;
+	} else {
+		return CMD_WARNING;
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_ext_rach, cfg_ext_rach_cmd,
+	"ext-rach (disable|enable)",
+	"Enable extended (11-bit) RACH (default=disable)\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	if (strcmp("disable", argv[0]) == 0)
+		trx->cfg.ext_rach = false;
+
+	if (strcmp("enable", argv[0]) == 0)
+		trx->cfg.ext_rach = true;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_rt_prio, cfg_rt_prio_cmd,
+	"rt-prio <1-32>",
+	"Set the SCHED_RR real-time priority\n"
+	"Real time priority\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.sched_rr = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_stack_size, cfg_stack_size_cmd,
+	"stack-size <0-2147483647>",
+	"Set the stack size per thread in BYTE, 0 = OS default\n"
+	"Stack size per thread in BYTE\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.stack_size = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_filler, cfg_filler_type_cmd,
+	"filler type (zero|dummy|random-nb-gmsk|random-nb-8psk|random-ab)",
+	"Filler burst settings\n"
+	"Filler burst type (default=zero)\n"
+	"Send an empty burst when there is nothing to send (default)\n"
+	"Send a dummy burst when there is nothing to send on C0 (TRX0) and empty burst on other channels."
+	" Use for OpenBTS compatibility only, don't use with OsmoBTS as it breaks encryption.\n"
+	"Send a GMSK modulated Normal Burst with random bits when there is nothing to send."
+	" Use for spectrum mask testing. Configure 'filler tsc' to set training sequence.\n"
+	"Send an 8-PSK modulated Normal Burst with random bits when there is nothing to send."
+	" Use for spectrum mask testing. Configure 'filler tsc' to set training sequence.\n"
+	"Send an Access Burst with random bits when there is nothing to send. Use for Rx/Tx alignment."
+	" Configure 'filler access-burst-delay' to introduce artificial delay.\n"
+)
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+	// trx->cfg.filler is unsigned, so we need an interim int var to detect errors
+	int type = get_string_value(filler_types, argv[0]);
+
+	if (type < 0) {
+		trx->cfg.filler = FILLER_ZERO;
+		return CMD_WARNING;
+	}
+	trx->cfg.filler = type;
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_test_rtsc, cfg_filler_tsc_cmd,
+	"filler tsc <0-7>",
+	"Filler burst settings\n"
+	"Set the TSC for GMSK/8-PSK Normal Burst random fillers. Used only with 'random-nb-gmsk' and"
+	" 'random-nb-8psk' filler types. (default=0)\n"
+	"TSC\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.rtsc = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_test_rach_delay, cfg_filler_rach_delay_cmd,
+	"filler access-burst-delay <0-68>",
+	"Filler burst settings\n"
+	"Set the delay for Access Burst random fillers. Used only with 'random-ab' filler type. (default=0)\n"
+	"RACH delay in symbols\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx->cfg.rach_delay = atoi(argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+static int vty_ctr_name_2_id(const char* str) {
+	size_t i;
+	for (i = 0; trx_chan_ctr_names[i].str; i++) {
+		if (strstr(trx_chan_ctr_names[i].str, str)) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+static int vty_intv_name_2_id(const char* str) {
+	size_t i;
+	for (i = 0; rate_ctr_intv[i].str; i++) {
+		if (strcmp(rate_ctr_intv[i].str, str) == 0) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+#define THRESHOLD_ARGS "(rx_overruns|tx_underruns|rx_drop_events|rx_drop_samples|tx_drop_events|tx_drop_samples)"
+#define THRESHOLD_STR_VAL(s) "Set threshold value for rate_ctr device:" OSMO_STRINGIFY_VAL(s) "\n"
+#define THRESHOLD_STRS \
+	THRESHOLD_STR_VAL(rx_overruns) \
+	THRESHOLD_STR_VAL(tx_underruns) \
+	THRESHOLD_STR_VAL(rx_drop_events) \
+	THRESHOLD_STR_VAL(rx_drop_samples) \
+	THRESHOLD_STR_VAL(tx_drop_events) \
+	THRESHOLD_STR_VAL(tx_drop_samples)
+#define INTV_ARGS "(per-second|per-minute|per-hour|per-day)"
+#define INTV_STR_VAL(s) "Threshold value sampled " OSMO_STRINGIFY_VAL(s) "\n"
+#define INTV_STRS \
+	INTV_STR_VAL(per-second) \
+	INTV_STR_VAL(per-minute) \
+	INTV_STR_VAL(per-hour) \
+	INTV_STR_VAL(per-day)
+
+DEFUN(cfg_ctr_error_threshold, cfg_ctr_error_threshold_cmd,
+	"ctr-error-threshold " THRESHOLD_ARGS " <0-65535> " INTV_ARGS,
+	"Threshold rate for error counter\n"
+	THRESHOLD_STRS
+	"Value to set for threshold\n"
+	INTV_STRS)
+{
+	int rc;
+	struct ctr_threshold ctr;
+
+	struct trx_ctx *trx = trx_from_vty(vty);
+	rc = vty_ctr_name_2_id(argv[0]);
+	if (rc < 0) {
+		vty_out(vty, "No valid ctr_name found for ctr-error-threshold %s%s",
+			argv[0], VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+	ctr.ctr_id = (enum TrxCtr)rc;
+	ctr.val = atoi(argv[1]);
+	rc = vty_intv_name_2_id(argv[2]);
+	if (rc < 0) {
+		vty_out(vty, "No valid time frame found for ctr-error-threshold %s %d %s%s",
+			argv[0], ctr.val, argv[2], VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+	ctr.intv = (enum rate_ctr_intv) rc;
+	trx_rate_ctr_threshold_add(&ctr);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_no_ctr_error_threshold, cfg_no_ctr_error_threshold_cmd,
+	"no ctr-error-threshold " THRESHOLD_ARGS " <0-65535> " INTV_ARGS,
+	NO_STR "Threshold rate for error counter\n"
+	THRESHOLD_STRS
+	"Value to set for threshold\n"
+	INTV_STRS)
+{
+	int rc;
+	struct ctr_threshold ctr;
+
+	struct trx_ctx *trx = trx_from_vty(vty);
+	rc = vty_ctr_name_2_id(argv[0]);
+	if (rc < 0) {
+		vty_out(vty, "No valid ctr_name found for ctr-error-threshold %s%s",
+			argv[0], VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+	ctr.ctr_id = (enum TrxCtr)rc;
+	ctr.val = atoi(argv[1]);
+	rc = vty_intv_name_2_id(argv[2]);
+	if (rc < 0) {
+		vty_out(vty, "No valid time frame found for ctr-error-threshold %s %d %s%s",
+			argv[0], ctr.val, argv[2], VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+	ctr.intv = (enum rate_ctr_intv) rc;
+	if (trx_rate_ctr_threshold_del(&ctr) < 0) {
+		vty_out(vty, "no ctr-error-threshold: Entry to delete not found%s", VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_chan, cfg_chan_cmd,
+	"chan <0-100>",
+	"Select a channel to configure\n"
+	"Channel index\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+	int idx = atoi(argv[0]);
+
+	if (idx >= TRX_CHAN_MAX) {
+		vty_out(vty, "Chan list full.%s", VTY_NEWLINE);
+		return CMD_WARNING;
+	} else if (trx->cfg.multi_arfcn && trx->cfg.num_chans >= TRX_MCHAN_MAX) {
+		vty_out(vty, "Up to %i channels are supported for multi-TRX mode%s",
+			TRX_MCHAN_MAX, VTY_NEWLINE);
+		return CMD_WARNING;
+	}
+
+	if (trx->cfg.num_chans < idx) { /* Unexisting or creating non-consecutive */
+		vty_out(vty, "Non-existent or non-consecutive chan %d.%s",
+				idx, VTY_NEWLINE);
+		return CMD_WARNING;
+	} else if (trx->cfg.num_chans == idx)  { /* creating it */
+		trx->cfg.num_chans++;
+		trx->cfg.chans[idx].trx = trx;
+		trx->cfg.chans[idx].idx = idx;
+	}
+
+	vty->node = CHAN_NODE;
+	vty->index = &trx->cfg.chans[idx];
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_chan_rx_path, cfg_chan_rx_path_cmd,
+	"rx-path NAME",
+	"Set the Rx Path\n"
+	"Rx Path name\n")
+{
+	struct trx_chan *chan = vty->index;
+
+	osmo_talloc_replace_string(chan->trx, &chan->rx_path, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+DEFUN(cfg_chan_tx_path, cfg_chan_tx_path_cmd,
+	"tx-path NAME",
+	"Set the Tx Path\n"
+	"Tx Path name\n")
+{
+	struct trx_chan *chan = vty->index;
+
+	osmo_talloc_replace_string(chan->trx, &chan->tx_path, argv[0]);
+
+	return CMD_SUCCESS;
+}
+
+static int dummy_config_write(struct vty *v)
+{
+	return CMD_SUCCESS;
+}
+
+static int config_write_trx(struct vty *vty)
+{
+	struct trx_chan *chan;
+	int i;
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	vty_out(vty, "trx%s", VTY_NEWLINE);
+	if (trx->cfg.bind_addr)
+		vty_out(vty, " bind-ip %s%s", trx->cfg.bind_addr, VTY_NEWLINE);
+	if (trx->cfg.remote_addr)
+		vty_out(vty, " remote-ip %s%s", trx->cfg.remote_addr, VTY_NEWLINE);
+	if (trx->cfg.base_port != DEFAULT_TRX_PORT)
+		vty_out(vty, " base-port %u%s", trx->cfg.base_port, VTY_NEWLINE);
+	if (trx->cfg.dev_args)
+		vty_out(vty, " dev-args %s%s", trx->cfg.dev_args, VTY_NEWLINE);
+	if (trx->cfg.tx_sps != DEFAULT_TX_SPS)
+		vty_out(vty, " tx-sps %u%s", trx->cfg.tx_sps, VTY_NEWLINE);
+	if (trx->cfg.rx_sps != DEFAULT_RX_SPS)
+		vty_out(vty, " rx-sps %u%s", trx->cfg.rx_sps, VTY_NEWLINE);
+	if (trx->cfg.clock_ref != REF_INTERNAL)
+		vty_out(vty, " clock-ref %s%s", get_value_string(clock_ref_names, trx->cfg.clock_ref), VTY_NEWLINE);
+	vty_out(vty, " multi-arfcn %s%s", trx->cfg.multi_arfcn ? "enable" : "disable", VTY_NEWLINE);
+	if (trx->cfg.offset != 0)
+		vty_out(vty, " offset %f%s", trx->cfg.offset, VTY_NEWLINE);
+	if (trx->cfg.rssi_offset != 0)
+		vty_out(vty, " rssi-offset %f%s", trx->cfg.rssi_offset, VTY_NEWLINE);
+	vty_out(vty, " swap-channels %s%s", trx->cfg.swap_channels ? "enable" : "disable", VTY_NEWLINE);
+	vty_out(vty, " egprs %s%s", trx->cfg.egprs ? "enable" : "disable", VTY_NEWLINE);
+	vty_out(vty, " ext-rach %s%s", trx->cfg.ext_rach ? "enable" : "disable", VTY_NEWLINE);
+	if (trx->cfg.sched_rr != 0)
+		vty_out(vty, " rt-prio %u%s", trx->cfg.sched_rr, VTY_NEWLINE);
+	if (trx->cfg.filler != FILLER_ZERO)
+		vty_out(vty, " filler type %s%s", get_value_string(filler_types, trx->cfg.filler), VTY_NEWLINE);
+	if (trx->cfg.rtsc > 0)
+		vty_out(vty, " filler tsc %u%s", trx->cfg.rtsc, VTY_NEWLINE);
+	if (trx->cfg.rach_delay > 0)
+		vty_out(vty, " filler access-burst-delay %u%s", trx->cfg.rach_delay, VTY_NEWLINE);
+	if (trx->cfg.stack_size != 0)
+		vty_out(vty, " stack-size %u%s", trx->cfg.stack_size, VTY_NEWLINE);
+	trx_rate_ctr_threshold_write_config(vty, " ");
+
+	for (i = 0; i < trx->cfg.num_chans; i++) {
+		chan = &trx->cfg.chans[i];
+		vty_out(vty, " chan %u%s", chan->idx, VTY_NEWLINE);
+		if (chan->rx_path)
+			vty_out(vty, "  rx-path %s%s", chan->rx_path, VTY_NEWLINE);
+		if (chan->tx_path)
+			vty_out(vty, "  tx-path %s%s", chan->tx_path, VTY_NEWLINE);
+	}
+
+	return CMD_SUCCESS;
+}
+
+static void trx_dump_vty(struct vty *vty, struct trx_ctx *trx)
+{
+	struct trx_chan *chan;
+	int i;
+	vty_out(vty, "TRX Config:%s", VTY_NEWLINE);
+	vty_out(vty, " Local IP: %s%s", trx->cfg.bind_addr, VTY_NEWLINE);
+	vty_out(vty, " Remote IP: %s%s", trx->cfg.remote_addr, VTY_NEWLINE);
+	vty_out(vty, " TRX Base Port: %u%s", trx->cfg.base_port, VTY_NEWLINE);
+	vty_out(vty, " Device args: %s%s", trx->cfg.dev_args, VTY_NEWLINE);
+	vty_out(vty, " Tx Samples-per-Symbol: %u%s", trx->cfg.tx_sps, VTY_NEWLINE);
+	vty_out(vty, " Rx Samples-per-Symbol: %u%s", trx->cfg.rx_sps, VTY_NEWLINE);
+	vty_out(vty, " Filler Burst Type: %s%s", get_value_string(filler_names, trx->cfg.filler), VTY_NEWLINE);
+	vty_out(vty, " Filler Burst TSC: %u%s", trx->cfg.rtsc, VTY_NEWLINE);
+	vty_out(vty, " Filler Burst RACH Delay: %u%s", trx->cfg.rach_delay, VTY_NEWLINE);
+	vty_out(vty, " Clock Reference: %s%s", get_value_string(clock_ref_names, trx->cfg.clock_ref), VTY_NEWLINE);
+	vty_out(vty, " Multi-Carrier: %s%s", trx->cfg.multi_arfcn ? "Enabled" : "Disabled", VTY_NEWLINE);
+	vty_out(vty, " Tuning offset: %f%s", trx->cfg.offset, VTY_NEWLINE);
+	vty_out(vty, " RSSI to dBm offset: %f%s", trx->cfg.rssi_offset, VTY_NEWLINE);
+	vty_out(vty, " Swap channels: %s%s", trx->cfg.swap_channels ? "Enabled" : "Disabled", VTY_NEWLINE);
+	vty_out(vty, " EDGE support: %s%s", trx->cfg.egprs ? "Enabled" : "Disabled", VTY_NEWLINE);
+	vty_out(vty, " Extended RACH support: %s%s", trx->cfg.ext_rach ? "Enabled" : "Disabled", VTY_NEWLINE);
+	vty_out(vty, " Real Time Priority: %u (%s)%s", trx->cfg.sched_rr,
+		trx->cfg.sched_rr ? "Enabled" : "Disabled", VTY_NEWLINE);
+	vty_out(vty, " Stack size per Thread in BYTE (0 = OS default): %u%s", trx->cfg.stack_size, VTY_NEWLINE);
+	vty_out(vty, " Channels: %u%s", trx->cfg.num_chans, VTY_NEWLINE);
+	for (i = 0; i < trx->cfg.num_chans; i++) {
+		chan = &trx->cfg.chans[i];
+		vty_out(vty, "  Channel %u:%s", chan->idx, VTY_NEWLINE);
+		if (chan->rx_path)
+			vty_out(vty, "   Rx Path: %s%s", chan->rx_path, VTY_NEWLINE);
+		if (chan->tx_path)
+			vty_out(vty, "   Tx Path: %s%s", chan->tx_path, VTY_NEWLINE);
+	}
+}
+
+DEFUN(show_trx, show_trx_cmd,
+	"show trx",
+	SHOW_STR "Display information on the TRX\n")
+{
+	struct trx_ctx *trx = trx_from_vty(vty);
+
+	trx_dump_vty(vty, trx);
+
+	return CMD_SUCCESS;
+}
+
+static int trx_vty_is_config_node(struct vty *vty, int node)
+{
+	switch (node) {
+	case TRX_NODE:
+	case CHAN_NODE:
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static int trx_vty_go_parent(struct vty *vty)
+{
+	switch (vty->node) {
+	case TRX_NODE:
+		vty->node = CONFIG_NODE;
+		vty->index = NULL;
+		vty->index_sub = NULL;
+		break;
+	case CHAN_NODE:
+		vty->node = TRX_NODE;
+		vty->index = NULL;
+		vty->index_sub = NULL;
+		break;
+	default:
+		vty->node = CONFIG_NODE;
+		vty->index = NULL;
+		vty->index_sub = NULL;
+	}
+
+	return vty->node;
+}
+
+static const char trx_copyright[] =
+	"Copyright (C) 2007-2014 Free Software Foundation, Inc.\r\n"
+	"Copyright (C) 2013 Thomas Tsou <tom@tsou.cc>\r\n"
+	"Copyright (C) 2013-2019 Fairwaves, Inc.\r\n"
+	"Copyright (C) 2015 Ettus Research LLC\r\n"
+	"Copyright (C) 2017-2018 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>\r\n"
+	"License AGPLv3+: GNU AGPL version 3 or later <http://gnu.org/licenses/agpl-3.0.html>\r\n"
+	"This is free software: you are free to change and redistribute it.\r\n"
+	"There is NO WARRANTY, to the extent permitted by law.\r\n";
+
+struct vty_app_info g_vty_info = {
+	.name		= "OsmoTRX",
+	.version	= PACKAGE_VERSION,
+	.copyright	= trx_copyright,
+	.go_parent_cb	= trx_vty_go_parent,
+	.is_config_node	= trx_vty_is_config_node,
+};
+
+struct trx_ctx *vty_trx_ctx_alloc(void *talloc_ctx)
+{
+	struct trx_ctx * trx = talloc_zero(talloc_ctx, struct trx_ctx);
+
+	trx->cfg.bind_addr =  talloc_strdup(trx, DEFAULT_TRX_IP);
+	trx->cfg.remote_addr = talloc_strdup(trx, DEFAULT_TRX_IP);
+	trx->cfg.base_port = DEFAULT_TRX_PORT;
+	trx->cfg.tx_sps = DEFAULT_TX_SPS;
+	trx->cfg.rx_sps = DEFAULT_RX_SPS;
+	trx->cfg.filler = FILLER_ZERO;
+
+	return trx;
+}
+
+int trx_vty_init(struct trx_ctx* trx)
+{
+	g_trx_ctx = trx;
+	install_element_ve(&show_trx_cmd);
+
+	install_element(CONFIG_NODE, &cfg_trx_cmd);
+
+	install_node(&trx_node, config_write_trx);
+	install_element(TRX_NODE, &cfg_bind_ip_cmd);
+	install_element(TRX_NODE, &cfg_remote_ip_cmd);
+	install_element(TRX_NODE, &cfg_base_port_cmd);
+	install_element(TRX_NODE, &cfg_dev_args_cmd);
+	install_element(TRX_NODE, &cfg_tx_sps_cmd);
+	install_element(TRX_NODE, &cfg_rx_sps_cmd);
+	install_element(TRX_NODE, &cfg_clock_ref_cmd);
+	install_element(TRX_NODE, &cfg_multi_arfcn_cmd);
+	install_element(TRX_NODE, &cfg_offset_cmd);
+	install_element(TRX_NODE, &cfg_rssi_offset_cmd);
+	install_element(TRX_NODE, &cfg_swap_channels_cmd);
+	install_element(TRX_NODE, &cfg_egprs_cmd);
+	install_element(TRX_NODE, &cfg_ext_rach_cmd);
+	install_element(TRX_NODE, &cfg_rt_prio_cmd);
+	install_element(TRX_NODE, &cfg_filler_type_cmd);
+	install_element(TRX_NODE, &cfg_filler_tsc_cmd);
+	install_element(TRX_NODE, &cfg_filler_rach_delay_cmd);
+	install_element(TRX_NODE, &cfg_ctr_error_threshold_cmd);
+	install_element(TRX_NODE, &cfg_no_ctr_error_threshold_cmd);
+	install_element(TRX_NODE, &cfg_stack_size_cmd);
+
+	install_element(TRX_NODE, &cfg_chan_cmd);
+	install_node(&chan_node, dummy_config_write);
+	install_element(CHAN_NODE, &cfg_chan_rx_path_cmd);
+	install_element(CHAN_NODE, &cfg_chan_tx_path_cmd);
+
+	return 0;
+}

CommonLibs/trx_vty.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <osmocom/vty/command.h>
+
+#include "config_defs.h"
+
+extern struct vty_app_info g_vty_info;
+extern const struct value_string filler_names[];
+
+/* Maximum number of physical RF channels */
+#define TRX_CHAN_MAX 8
+/* Maximum number of carriers in multi-ARFCN mode */
+#define TRX_MCHAN_MAX 3
+
+/* Samples-per-symbol for downlink path
+ *     4 - Uses precision modulator (more computation, less distortion)
+ *     1 - Uses minimized modulator (less computation, more distortion)
+ *
+ *     Other values are invalid. Receive path (uplink) is always
+ *     downsampled to 1 sps. Default to 4 sps for all cases.
+ */
+#define DEFAULT_TX_SPS		4
+
+/*
+ * Samples-per-symbol for uplink (receiver) path
+ *     Do not modify this value. EDGE configures 4 sps automatically on
+ *     B200/B210 devices only. Use of 4 sps on the receive path for other
+ *     configurations is not supported.
+ */
+#define DEFAULT_RX_SPS		1
+
+/* Default configuration parameters */
+#define DEFAULT_TRX_PORT	5700
+#define DEFAULT_TRX_IP		"127.0.0.1"
+#define DEFAULT_CHANS		1
+
+struct trx_ctx;
+
+struct trx_chan {
+	struct trx_ctx *trx; /* backpointer */
+	unsigned int idx; /* channel index */
+	char *rx_path;
+	char *tx_path;
+};
+
+struct trx_ctx {
+	struct {
+		char *bind_addr;
+		char *remote_addr;
+		char *dev_args;
+		unsigned int base_port;
+		unsigned int tx_sps;
+		unsigned int rx_sps;
+		unsigned int rtsc;
+		unsigned int rach_delay;
+		enum ReferenceType clock_ref;
+		enum FillerType filler;
+		bool multi_arfcn;
+		double offset;
+		double rssi_offset;
+		bool swap_channels;
+		bool ext_rach;
+		bool egprs;
+		unsigned int sched_rr;
+		unsigned int stack_size;
+		unsigned int num_chans;
+		struct trx_chan chans[TRX_CHAN_MAX];
+	} cfg;
+};
+
+int trx_vty_init(struct trx_ctx* trx);
+struct trx_ctx *vty_trx_ctx_alloc(void *talloc_ctx);

GSM/GSMCommon.cpp

@@ -2,6 +2,8 @@
 * Copyright 2008 Free Software Foundation, Inc.
 * Copyright 2011 Range Networks, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -54,7 +56,10 @@ const BitVector GSM::gEdgeTrainingSequence[] = {
 
 const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000");
 
-const BitVector GSM::gRACHSynchSequence("01001011011111111001100110101010001111000");
+/* 3GPP TS 05.02, section 5.2.7 "Access burst (AB)", synch. sequence bits */
+const BitVector GSM::gRACHSynchSequenceTS0("01001011011111111001100110101010001111000");  /* GSM, GMSK (default) */
+const BitVector GSM::gRACHSynchSequenceTS1("01010100111110001000011000101111001001101");  /* EGPRS, 8-PSK */
+const BitVector GSM::gRACHSynchSequenceTS2("11101111001001110101011000001101101110111");  /* EGPRS, GMSK */
 
 //                               |-head-||---------midamble----------------------||--------------data----------------||t|
 const BitVector GSM::gRACHBurst("0011101001001011011111111001100110101010001111000110111101111110000111001001010110011000");

GSM/GSMCommon.h

@@ -2,6 +2,8 @@
 /*
 * Copyright 2008-2011 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -52,7 +54,9 @@ extern const BitVector gEdgeTrainingSequence[];
 extern const BitVector gDummyBurst;
 
 /** Random access burst synch. sequence */
-extern const BitVector gRACHSynchSequence;
+extern const BitVector gRACHSynchSequenceTS0;
+extern const BitVector gRACHSynchSequenceTS1;
+extern const BitVector gRACHSynchSequenceTS2;
 /** Random access burst synch. sequence, GSM 05.02 5.2.7 */
 extern const BitVector gRACHBurst;
 

INSTALLATION

@@ -1,19 +0,0 @@
-Installation Requirements
-
-
-
-osmo-trx compiles to a simple Unix binary and does not require special
-installation.
-
-One some systems (Ubuntu), you will need to define LIBS = -lpthread prior to
-running configure.
-
-To run osmo-trx, the following should be installed:
-	libuhd (https://gnuradio.org).
-	This is part of the GNURadio installation.
-
-For information on specific executables, see tests/README.tests and
-apps/README.apps.
-
-See https://osmocom.org/projects/osmotrx/wiki/OsmoTRX for more
-information.

Makefile.am

@@ -28,17 +28,20 @@ AM_CXXFLAGS = -Wall -pthread
 
 # Order must be preserved
 SUBDIRS = \
+	doc \
 	CommonLibs \
 	GSM \
 	Transceiver52M \
+	contrib \
 	tests
 
 EXTRA_DIST = \
-	autogen.sh \
-	INSTALLATION \
 	LEGAL \
 	COPYING \
-	README
+	README.md
+
+AM_DISTCHECK_CONFIGURE_FLAGS = \
+	--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir)
 
 .PHONY: release
 

Makefile.common

@@ -18,9 +18,6 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-top_srcdir = $(abs_top_srcdir)
-top_builddir = $(abs_top_builddir)
-
 COMMON_INCLUDEDIR = $(top_srcdir)/CommonLibs
 GSM_INCLUDEDIR = $(top_srcdir)/GSM
 
@@ -33,9 +30,9 @@ COMMON_LA = $(top_builddir)/CommonLibs/libcommon.la
 GSM_LA = $(top_builddir)/GSM/libGSM.la
 
 if ARCH_ARM
-ARCH_LA = $(top_builddir)/Transceiver52M/arm/libarch.la
+ARCH_LA = $(top_builddir)/Transceiver52M/arch/arm/libarch.la
 else
-ARCH_LA = $(top_builddir)/Transceiver52M/x86/libarch.la
+ARCH_LA = $(top_builddir)/Transceiver52M/arch/x86/libarch.la
 endif
 
 MOSTLYCLEANFILES = *~

README

@@ -1,116 +0,0 @@
-This is the interface to the transcevier.
-
-Each TRX Manager UDP socket interface represents a single ARFCN.
-Each of these per-ARFCN interfaces is a pair of UDP sockets, one for control and one for data.
-Give a base port B (5700), the master clock interface is at port P=B.
-The TRX-side control interface for C(N) is on  port P=B+2N+1 and the data interface is on an odd numbered port P=B+2N+2.
-The corresponding core-side interface for every socket is at P+100.
-For any given build, the number of ARFCN interfaces can be fixed.
-
-
-
-Indications on the Master Clock Interface
-
-The master clock interface is output only (from the radio).
-Messages are "indications".
-
-CLOCK gives the current value of the transceiver clock to be used by the core.
-This message is sent whenever a trasmission packet arrives that is too late or too early.  The clock value is NOT the current transceiver time.  It is a time setting the the core should use to give better packet arrival times.
-IND CLOCK <totalFrames>
-
-
-
-Commands on the Per-ARFCN Control Interface
-
-The per-ARFCN control interface uses a command-reponse protocol.
-Commands are NULL-terminated ASCII strings, one per UDP socket.
-Each command has a corresponding response.
-Every command is of the form:
-
-CMD <cmdtype> [params]
-
-The <cmdtype> is the actual command.
-Parameters are optional depending on the commands type.
-Every response is of the form:
-
-RSP <cmdtype> <status> [result]
-
-The <status> is 0 for success and a non-zero error code for failure.
-Successful responses may include results, depending on the command type.
-
-
-Power Control
-
-POWEROFF shuts off transmitter power and stops the demodulator.
-CMD POWEROFF
-RSP POWEROFF <status>
-
-POWERON starts the transmitter and starts the demodulator.  Initial power level is very low.
-This command fails if the transmitter and receiver are not yet tuned.
-This command fails if the transmit or receive frequency creates a conflict with another ARFCN that is already runnng.
-If the transceiver is already on, it response with success to this command.
-CMD POWERON
-RSP POWERON <status>
-
-SETPOWER sets output power in dB wrt full scale.
-This command fails if the transmitter and receiver are not running.
-CMD SETPOWER <dB>
-RSP SETPOWER <status> <dB>
-
-ADJPOWER adjusts power by the given dB step.  Response returns resulting power level wrt full scale.
-This command fails if the transmitter and receiver are not running.
-CMD ADJPOWER <dBStep>
-RSP ADJPOWER <status> <dBLevel>
-
-
-Tuning Control
-
-RXTUNE tunes the receiver to a given frequency in kHz.
-This command fails if the receiver is already running.
-(To re-tune you stop the radio, re-tune, and restart.)
-This command fails if the transmit or receive frequency creates a conflict with another ARFCN that is already runnng.
-CMD RXTUNE <kHz>
-RSP RXTUNE <status> <kHz>
-
-TXTUNE tunes the transmitter to a given frequency in kHz.
-This command fails if the transmitter is already running.
-(To re-tune you stop the radio, re-tune, and restart.)
-This command fails if the transmit or receive frequency creates a conflict with another ARFCN that is already runnng.
-CMD TXTUNE <kHz>
-RSP TXTUNE <status> <kHz>
-
-
-Timeslot Control
-
-SETSLOT sets the format of the uplink timeslots in the ARFCN.
-The <timeslot> indicates the timeslot of interest.
-The <chantype> indicates the type of channel that occupies the timeslot.
-A chantype of zero indicates the timeslot is off.
-CMD SETSLOT <timeslot> <chantype>
-RSP SETSLOT <status> <timeslot> <chantype>
-
-
-Messages on the per-ARFCN Data Interface
-
-Messages on the data interface carry one radio burst per UDP message.
-
-
-Received Data Burst
-
-1 byte timeslot index
-4 bytes GSM frame number, big endian
-1 byte RSSI in -dBm
-2 bytes correlator timing offset in 1/256 symbol steps, 2's-comp, big endian
-148 bytes soft symbol estimates, 0 -> definite "0", 255 -> definite "1"
-
-
-Transmit Data Burst
-
-1 byte timeslot index
-4 bytes GSM frame number, big endian
-1 byte transmit level wrt ARFCN max, -dB (attenuation)
-148 bytes output symbol values, 0 & 1
-
-
-
-

README.md

@@ -0,0 +1,66 @@
+About OsmTRX
+============
+
+OsmoTRX is a software-defined radio transceiver that implements the Layer 1
+physical layer of a BTS comprising the following 3GPP specifications:
+
+* TS 05.01 "Physical layer on the radio path"
+* TS 05.02 "Multiplexing and Multiple Access on the Radio Path"
+* TS 05.04 "Modulation"
+* TS 05.10 "Radio subsystem synchronization"
+
+OsmoTRX is based on the transceiver code from the
+[OpenBTS](https://osmocom.org/projects/osmobts/wiki/OpenBTS) project, but setup
+to operate independently with the purpose of using with non-OpenBTS software and
+projects, while still maintaining backwards compatibility with OpenBTS when
+possible. Currently there are numerous features contained in OsmoTRX that extend
+the functionality of the OpenBTS transceiver. These features include enhanced
+support for various embedded platforms - notably ARM - and dual channel
+diversity support for the Fairwaves umtrx.
+
+Homepage
+--------
+
+The official homepage of the project is
+<https://osmocom.org/projects/osmotrx/wiki/OsmoTRX>
+
+GIT Repository
+--------------
+
+You can clone from the official osmo-trx.git repository using
+
+        git clone git://git.osmocom.org/osmo-trx.git
+
+There is a cgit interface at <http://git.osmocom.org/osmo-trx/>
+
+Documentation
+-------------
+
+Doxygen-generated API documentation is generated during the build process, but
+also available online for each of the sub-libraries at User Manual for OsmoTRX
+can be generated during the build process, and is also available online at
+<http://ftp.osmocom.org/docs/latest/osmotrx-usermanual.pdf>.
+
+Mailing List
+------------
+
+Discussions related to OsmoTRX are happening on the openbsc@lists.osmocom.org
+mailing list, please see <https://lists.osmocom.org/mailman/listinfo/openbsc>
+for subscription options and the list archive.
+
+Please observe the [Osmocom Mailing List
+Rules](https://osmocom.org/projects/cellular-infrastructure/wiki/Mailing_List_Rules)
+when posting.
+
+Contributing
+------------
+
+Our coding standards are described at
+<https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards>
+
+We us a gerrit based patch submission/review process for managing contributions.
+Please see <https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit>
+for more details
+
+The current patch queue for OsmoTRX can be seen at
+<https://gerrit.osmocom.org/q/project:osmo-trx+status:open>

Transceiver52M/Channelizer.cpp

@@ -4,6 +4,8 @@
  * Copyright (C) 2012-2014 Tom Tsou <tom@tsou.cc>
  * Copyright (C) 2015 Ettus Research LLC
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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
@@ -28,8 +30,8 @@
 #include "Channelizer.h"
 
 extern "C" {
-#include "common/fft.h"
-#include "common/convolve.h"
+#include "fft.h"
+#include "convolve.h"
 }
 
 static void deinterleave(const float *in, size_t ilen,
@@ -88,7 +90,7 @@ bool Channelizer::rotate(const float *in, size_t len)
 		convolve_real(hInputs[i], blockLen,
 			      subFilters[i], hLen,
 			      hOutputs[i], blockLen,
-			      0, blockLen, 1, 0);
+			      0, blockLen);
 	}
 
 	cxvec_fft(fftHandle);
@@ -96,7 +98,7 @@ bool Channelizer::rotate(const float *in, size_t len)
 	return true;
 }
 
-/* Setup channelizer paramaters */
+/* Setup channelizer parameters */
 Channelizer::Channelizer(size_t m, size_t blockLen, size_t hLen)
 	: ChannelizerBase(m, blockLen, hLen)
 {

Transceiver52M/ChannelizerBase.cpp

@@ -4,6 +4,8 @@
  * Copyright (C) 2012-2014 Tom Tsou <tom@tsou.cc>
  * Copyright (C) 2015 Ettus Research LLC
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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
@@ -29,7 +31,7 @@
 #include "ChannelizerBase.h"
 
 extern "C" {
-#include "common/fft.h"
+#include "fft.h"
 }
 
 static float sinc(float x)
@@ -223,10 +225,11 @@ bool ChannelizerBase::checkLen(size_t innerLen, size_t outerLen)
 }
 
 /*
- * Setup channelizer paramaters
+ * Setup channelizer parameters
  */
 ChannelizerBase::ChannelizerBase(size_t m, size_t blockLen, size_t hLen)
-	: fftInput(NULL), fftOutput(NULL), fftHandle(NULL)
+	: subFilters(NULL), hInputs(NULL), hOutputs(NULL), hist(NULL),
+	  fftInput(NULL), fftOutput(NULL), fftHandle(NULL)
 {
 	this->m = m;
 	this->hLen = hLen;
@@ -239,7 +242,7 @@ ChannelizerBase::~ChannelizerBase()
 
 	for (size_t i = 0; i < m; i++) {
 		free(subFilters[i]);
-		delete hist[i];
+		delete[] hist[i];
 	}
 
 	fft_free(fftInput);

Transceiver52M/ChannelizerBase.h

@@ -32,7 +32,7 @@ protected:
 	/* Buffer length validity checking */
 	bool checkLen(size_t innerLen, size_t outerLen);
 public:
-	/* Initilize channelizer/synthesis filter internals */
+	/* Initialize channelizer/synthesis filter internals */
 	bool init();
 };
 

Transceiver52M/Complex.h

@@ -5,7 +5,7 @@ unlike the built-in complex<> templates, these inline most operations for speed
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
+* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribution.
 *
 * This use of this software may be subject to additional restrictions.
 * See the LEGAL file in the main directory for details.

Transceiver52M/Makefile.am

@@ -21,28 +21,13 @@
 
 include $(top_srcdir)/Makefile.common
 
-AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/common
-AM_CXXFLAGS = -lpthread
+SUBDIRS = arch device
 
-SUBDIRS = arm x86
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/arch/common -I${srcdir}/device/common
+AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+AM_CFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
 
-if USRP1
-AM_CPPFLAGS += $(USRP_CFLAGS)
-else
-AM_CPPFLAGS += $(UHD_CFLAGS)
-endif
-
-rev2dir = $(datadir)/usrp/rev2
-rev4dir = $(datadir)/usrp/rev4
-
-dist_rev2_DATA = std_inband.rbf
-dist_rev4_DATA = std_inband.rbf
-
-EXTRA_DIST = \
-	README \
-	README.Talgorithm
-
-noinst_LTLIBRARIES = libtransceiver.la
+noinst_LTLIBRARIES = libtransceiver_common.la
 
 COMMON_SOURCES = \
 	radioInterface.cpp \
@@ -55,49 +40,67 @@ COMMON_SOURCES = \
 	ChannelizerBase.cpp \
 	Channelizer.cpp \
 	Synthesis.cpp \
-	common/fft.c
+	proto_trxd.c
 
-libtransceiver_la_SOURCES = \
+libtransceiver_common_la_SOURCES = \
 	$(COMMON_SOURCES) \
 	Resampler.cpp \
 	radioInterfaceResamp.cpp \
 	radioInterfaceMulti.cpp
 
-bin_PROGRAMS = osmo-trx
-
 noinst_HEADERS = \
 	Complex.h \
 	radioInterface.h \
 	radioVector.h \
 	radioClock.h \
-	radioDevice.h \
 	radioBuffer.h \
 	sigProcLib.h \
 	signalVector.h \
 	Transceiver.h \
-	USRPDevice.h \
 	Resampler.h \
 	ChannelizerBase.h \
 	Channelizer.h \
 	Synthesis.h \
-	common/convolve.h \
-	common/convert.h \
-	common/scale.h \
-	common/mult.h \
-	common/fft.h
+	proto_trxd.h
 
-osmo_trx_SOURCES = osmo-trx.cpp
-osmo_trx_LDADD = \
-	libtransceiver.la \
+COMMON_LDADD = \
+	libtransceiver_common.la \
 	$(ARCH_LA) \
 	$(GSM_LA) \
 	$(COMMON_LA) \
-	$(FFTWF_LIBS)
+	$(FFTWF_LIBS) \
+	$(LIBOSMOCORE_LIBS) \
+	$(LIBOSMOCTRL_LIBS) \
+	$(LIBOSMOVTY_LIBS)
 
-if USRP1
-libtransceiver_la_SOURCES += USRPDevice.cpp
-osmo_trx_LDADD += $(USRP_LIBS)
-else
-libtransceiver_la_SOURCES += UHDDevice.cpp
-osmo_trx_LDADD += $(UHD_LIBS)
+bin_PROGRAMS =
+
+if DEVICE_UHD
+bin_PROGRAMS += osmo-trx-uhd
+osmo_trx_uhd_SOURCES = osmo-trx.cpp
+osmo_trx_uhd_LDADD = \
+	$(builddir)/device/uhd/libdevice.la \
+	$(COMMON_LDADD) \
+	$(UHD_LIBS)
+osmo_trx_uhd_CPPFLAGS  = $(AM_CPPFLAGS) $(UHD_CFLAGS)
+endif
+
+if DEVICE_USRP1
+bin_PROGRAMS += osmo-trx-usrp1
+osmo_trx_usrp1_SOURCES = osmo-trx.cpp
+osmo_trx_usrp1_LDADD = \
+	$(builddir)/device/usrp1/libdevice.la \
+	$(COMMON_LDADD) \
+	$(USRP_LIBS)
+osmo_trx_usrp1_CPPFLAGS  = $(AM_CPPFLAGS) $(USRP_CFLAGS)
+endif
+
+if DEVICE_LMS
+bin_PROGRAMS += osmo-trx-lms
+osmo_trx_lms_SOURCES = osmo-trx.cpp
+osmo_trx_lms_LDADD = \
+	$(builddir)/device/lms/libdevice.la \
+	$(COMMON_LDADD) \
+	$(LMS_LIBS)
+osmo_trx_lms_CPPFLAGS  = $(AM_CPPFLAGS) $(LMS_CFLAGS)
 endif

Transceiver52M/README

@@ -1,35 +0,0 @@
-The Transceiver
-
-The transceiver consists of three modules:
-   --- transceiver
-   --- radioInterface
-   --- USRPDevice
-
-The USRPDevice module is basically a driver that reads/writes
-packets to a USRP with two RFX900 daughterboards, board 
-A is the Tx chain and board B is the Rx chain.  
-
-The radioInterface module is basically an interface b/w the
-transceiver and the USRP.   It operates the basestation clock
-based upon the sample count of received USRP samples.  Packets 
-from the USRP are queued and segmented into GSM bursts that are
-passed up to the transceiver; bursts from the transceiver are
-passed down to the USRP. 
-
-The transceiver basically operates "layer 0" of the GSM stack,
-performing the modulation, detection, and demodulation of GSM 
-bursts.  It communicates with the GSM stack via three UDP sockets,
-one socket for data, one for control messages, and one socket to
-pass clocking information.  The transceiver contains a priority
-queue to sort to-be-transmitted bursts, and a filler table to fill
-in timeslots that do not have bursts in the priority queue.  The
-transceiver tries to stay ahead of the basestation clock, adapting 
-its latency when underruns are reported by the radioInterface/USRP.
-Received bursts (from the radioInterface) pass through a simple 
-energy detector, a RACH or midamble correlator, and a DFE-based demodulator.
-
-NOTE: There's a SWLOOPBACK #define statement, where the USRP is replaced
-with a memory buffer.  In this mode, data written to the USRP is actually stored 
-in a buffer, and read commands to the USRP simply pull data from this buffer.
-This was very useful in early testing, and still may be useful in testing basic
-Transceiver and radioInterface functionality. 

Transceiver52M/Resampler.cpp

@@ -2,6 +2,8 @@
  * Rational Sample Rate Conversion
  * Copyright (C) 2012, 2013  Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -143,7 +145,7 @@ int Resampler::rotate(const float *in, size_t in_len, float *out, size_t out_len
 		convolve_real(in, in_len,
 			      reinterpret_cast<float *>(partitions[path]),
 			      filt_len, &out[2 * i], out_len - i,
-			      n, 1, 1, 0);
+			      n, 1);
 	}
 
 	return out_len;

Transceiver52M/Resampler.h

@@ -2,6 +2,8 @@
  * Rational Sample Rate Conversion
  * Copyright (C) 2012, 2013  Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -33,12 +35,12 @@ public:
 	Resampler(size_t p, size_t q, size_t filt_len = 16);
 	~Resampler();
 
-	/* Initilize resampler filterbank.
+	/* Initialize resampler filterbank.
 	 *   @param bw bandwidth factor on filter generation (pre-window)
 	 *   @return false on error, zero otherwise
 	 *
 	 * Automatic setting is to compute the filter to prevent aliasing with
-	 * a Blackman-Harris window. Adjustment is made through a bandwith
+	 * a Blackman-Harris window. Adjustment is made through a bandwidth
 	 * factor to shift the cutoff and/or the constituent filter lengths.
 	 * Calculation of specific rolloff factors or 3-dB cutoff points is
 	 * left as an excersize for the reader.

Transceiver52M/Synthesis.cpp

@@ -4,6 +4,8 @@
  * Copyright (C) 2012-2014 Tom Tsou <tom@tsou.cc>
  * Copyright (C) 2015 Ettus Research LLC
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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
@@ -29,8 +31,8 @@
 #include "Synthesis.h"
 
 extern "C" {
-#include "common/fft.h"
-#include "common/convolve.h"
+#include "fft.h"
+#include "convolve.h"
 }
 
 static void interleave(float **in, size_t ilen,
@@ -102,7 +104,7 @@ bool Synthesis::rotate(float *out, size_t len)
 		convolve_real(hInputs[i], blockLen,
 			      subFilters[i], hLen,
 			      hOutputs[i], blockLen,
-			      0, blockLen, 1, 0);
+			      0, blockLen);
 	}
 
 	/* Interleave into output vector */

Transceiver52M/Transceiver.h

@@ -1,6 +1,8 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: GPL-3.0+
+*
 * This software is distributed under the terms of the GNU Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -25,27 +27,21 @@
 #include "radioInterface.h"
 #include "Interthread.h"
 #include "GSMCommon.h"
-#include "Sockets.h"
 
 #include <sys/types.h>
 #include <sys/socket.h>
 
+extern "C" {
+#include <osmocom/core/signal.h>
+#include "config_defs.h"
+}
+
 class Transceiver;
 
 /** Channel descriptor for transceiver object and channel number pair */
-struct TransceiverChannel {
-  TransceiverChannel(Transceiver *trx, int num)
-  {
-    this->trx = trx;
-    this->num = num;
-  }
-
-  ~TransceiverChannel()
-  {
-  }
-
-  Transceiver *trx;
-  size_t num;
+struct TrxChanThParams {
+	Transceiver *trx;
+	size_t num;
 };
 
 /** Internal transceiver state variables */
@@ -54,7 +50,7 @@ struct TransceiverState {
   ~TransceiverState();
 
   /* Initialize a multiframe slot in the filler table */
-  bool init(int filler, size_t sps, float scale, size_t rtsc, unsigned rach_delay);
+  bool init(FillerType filler, size_t sps, float scale, size_t rtsc, unsigned rach_delay);
 
   int chanType[8];
 
@@ -103,13 +99,14 @@ public:
               size_t tx_sps, size_t rx_sps, size_t chans,
               GSM::Time wTransmitLatency,
               RadioInterface *wRadioInterface,
-              double wRssiOffset);
+              double wRssiOffset, int stackSize);
 
   /** Destructor */
   ~Transceiver();
 
   /** Start the control loop */
-  bool init(int filler, size_t rtsc, unsigned rach_delay, bool edge);
+  bool init(FillerType filler, size_t rtsc, unsigned rach_delay,
+            bool edge, bool ext_rach);
 
   /** attach the radioInterface receive FIFO */
   bool receiveFIFO(VectorFIFO *wFIFO, size_t chan)
@@ -144,22 +141,14 @@ public:
     LOOPBACK            ///< similar go VII, used in loopback testing
   } ChannelCombination;
 
-  enum FillerType {
-    FILLER_DUMMY,
-    FILLER_ZERO,
-    FILLER_NORM_RAND,
-    FILLER_EDGE_RAND,
-    FILLER_ACCESS_RAND,
-  };
-
 private:
   int mBasePort;
   std::string mLocalAddr;
   std::string mRemoteAddr;
 
-  std::vector<UDPSocket *> mDataSockets;  ///< socket for writing to/reading from GSM core
-  std::vector<UDPSocket *> mCtrlSockets;  ///< socket for writing/reading control commands from GSM core
-  UDPSocket mClockSocket;                 ///< socket for writing clock updates to GSM core
+  std::vector<int> mDataSockets;  ///< socket for writing to/reading from GSM core
+  std::vector<int> mCtrlSockets;  ///< socket for writing/reading control commands from GSM core
+  int mClockSocket;               ///< socket for writing clock updates to GSM core
 
   std::vector<VectorQueue> mTxPriorityQueues;   ///< priority queue of transmit bursts received from GSM core
   std::vector<VectorFIFO *>  mReceiveFIFO;      ///< radioInterface FIFO of receive bursts
@@ -180,6 +169,7 @@ private:
   double rxFullScale;                     ///< full scale output to radio
 
   double rssiOffset;                      ///< RSSI to dBm conversion offset
+  int stackSize;                      ///< stack size for threads, 0 = OS default
 
   /** modulate and add a burst to the transmit queue */
   void addRadioVector(size_t chan, BitVector &bits,
@@ -192,9 +182,7 @@ private:
   void pushRadioVector(GSM::Time &nowTime);
 
   /** Pull and demodulate a burst from the receive FIFO */
-  SoftVector *pullRadioVector(GSM::Time &wTime, double &RSSI, bool &isRssiValid,
-                              double &timingOffset, double &noise,
-                              size_t chan = 0);
+  int pullRadioVector(size_t chan, struct trx_ul_burst_ind *ind);
 
   /** Set modulus for specific timeslot */
   void setModulus(size_t timeslot, size_t chan);
@@ -203,12 +191,13 @@ private:
   CorrType expectedCorrType(GSM::Time currTime, size_t chan);
 
   /** send messages over the clock socket */
-  void writeClockInterface(void);
+  bool writeClockInterface(void);
 
   int mSPSTx;                          ///< number of samples per Tx symbol
   int mSPSRx;                          ///< number of samples per Rx symbol
   size_t mChans;
 
+  bool mExtRACH;
   bool mEdge;
   bool mOn;	                           ///< flag to indicate that transceiver is powered on
   bool mForceClockInterface;           ///< flag to indicate whether IND CLOCK shall be sent unconditionally after transceiver is started
@@ -220,27 +209,28 @@ private:
   unsigned mMaxExpectedDelayNB;        ///< maximum expected time-of-arrival offset in GSM symbols for Normal Bursts
   unsigned mWriteBurstToDiskMask;      ///< debug: bitmask to indicate which timeslots to dump to disk
 
+  std::vector<unsigned> mVersionTRXD;  ///< Format version to use for TRXD protocol communication, per channel
   std::vector<TransceiverState> mStates;
 
   /** Start and stop I/O threads through the control socket API */
   bool start();
   void stop();
 
-  /** Protect destructor accessable stop call */
+  /** Protect destructor accessible stop call */
   Mutex mLock;
 
 protected:
   /** drive lower receive I/O and burst generation */
-  void driveReceiveRadio();
+  bool driveReceiveRadio();
 
   /** drive demodulation of GSM bursts */
-  void driveReceiveFIFO(size_t chan);
+  bool driveReceiveFIFO(size_t chan);
 
   /** drive transmission of GSM bursts */
   void driveTxFIFO();
 
   /** drive handling of control messages from GSM core */
-  void driveControl(size_t chan);
+  bool driveControl(size_t chan);
 
   /**
     drive modulation and sorting of GSM bursts from GSM core
@@ -248,34 +238,26 @@ protected:
   */
   bool driveTxPriorityQueue(size_t chan);
 
-  friend void *RxUpperLoopAdapter(TransceiverChannel *);
-
-  friend void *TxUpperLoopAdapter(TransceiverChannel *);
-
-  friend void *RxLowerLoopAdapter(Transceiver *);
-
-  friend void *TxLowerLoopAdapter(Transceiver *);
-
-  friend void *ControlServiceLoopAdapter(TransceiverChannel *);
+  friend void *RxUpperLoopAdapter(TrxChanThParams *params);
+  friend void *TxUpperLoopAdapter(TrxChanThParams *params);
+  friend void *RxLowerLoopAdapter(Transceiver *transceiver);
+  friend void *TxLowerLoopAdapter(Transceiver *transceiver);
+  friend void *ControlServiceLoopAdapter(TrxChanThParams *params);
 
 
   void reset();
 
-  /** set priority on current thread */
-  void setPriority(float prio = 0.5) { mRadioInterface->setPriority(prio); }
-
-  void logRxBurst(size_t chan, SoftVector *burst, GSM::Time time, double dbm,
-                  double rssi, double noise, double toa);
+  void logRxBurst(size_t chan, const struct trx_ul_burst_ind *bi);
 };
 
-void *RxUpperLoopAdapter(TransceiverChannel *);
+void *RxUpperLoopAdapter(TrxChanThParams *params);
 
 /** Main drive threads */
-void *RxLowerLoopAdapter(Transceiver *);
-void *TxLowerLoopAdapter(Transceiver *);
+void *RxLowerLoopAdapter(Transceiver *transceiver);
+void *TxLowerLoopAdapter(Transceiver *transceiver);
 
 /** control message handler thread loop */
-void *ControlServiceLoopAdapter(TransceiverChannel *);
+void *ControlServiceLoopAdapter(TrxChanThParams *params);
 
 /** transmit queueing thread loop */
-void *TxUpperLoopAdapter(TransceiverChannel *);
+void *TxUpperLoopAdapter(TrxChanThParams *params);

Transceiver52M/arch/Makefile.am

@@ -0,0 +1,8 @@
+include $(top_srcdir)/Makefile.common
+
+SUBDIRS = common
+if ARCH_ARM
+SUBDIRS += arm
+else
+SUBDIRS += x86
+endif

Transceiver52M/arch/arm/Makefile.am

@@ -1,17 +1,17 @@
-if ARCH_ARM
 if ARCH_ARM_A15
 ARCH_FLAGS = -mfpu=neon-vfpv4
 else
 ARCH_FLAGS = -mfpu=neon
 endif
 
-AM_CFLAGS = -Wall $(ARCH_FLAGS) -std=gnu99 -I../common
+AM_CFLAGS = -Wall $(ARCH_FLAGS) -std=gnu99 -I${srcdir}/../common
 AM_CCASFLAGS = $(ARCH_FLAGS)
 
 noinst_LTLIBRARIES = libarch.la
 
+libarch_la_LIBADD = $(top_builddir)/Transceiver52M/arch/common/libarch_common.la
+
 libarch_la_SOURCES = \
-	../common/convolve_base.c \
 	convert.c \
 	convert_neon.S \
 	convolve.c \
@@ -20,4 +20,3 @@ libarch_la_SOURCES = \
 	scale_neon.S \
 	mult.c \
 	mult_neon.S
-endif

Transceiver52M/arch/arm/convert.c

@@ -2,6 +2,8 @@
  * NEON type conversions
  * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

Transceiver52M/arch/arm/convert_neon.S

@@ -2,6 +2,8 @@
  * NEON type conversions
  * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

Transceiver52M/arch/arm/convolve.c

@@ -2,6 +2,8 @@
  * NEON Convolution
  * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -29,17 +31,15 @@
 int _base_convolve_real(float *x, int x_len,
 			float *h, int h_len,
 			float *y, int y_len,
-			int start, int len,
-			int step, int offset);
+			int start, int len);
 
 int _base_convolve_complex(float *x, int x_len,
 			   float *h, int h_len,
 			   float *y, int y_len,
-			   int start, int len,
-			   int step, int offset);
+			   int start, int len);
 
 int bounds_check(int x_len, int h_len, int y_len,
-		 int start, int len, int step);
+		 int start, int len);
 
 #ifdef HAVE_NEON
 /* Calls into NEON assembler */
@@ -58,7 +58,7 @@ static void neon_conv_cmplx_4n(float *x, float *h, float *y, int h_len, int len)
 }
 #endif
 
-/* API: Initalize convolve module */
+/* API: Initialize convolve module */
 void convolve_init(void)
 {
 	/* Stub */
@@ -69,35 +69,32 @@ void convolve_init(void)
 int convolve_real(float *x, int x_len,
 		  float *h, int h_len,
 		  float *y, int y_len,
-		  int start, int len,
-		  int step, int offset)
+		  int start, int len)
 {
 	void (*conv_func)(float *, float *, float *, int) = NULL;
 
-	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
 #ifdef HAVE_NEON
-	if (step <= 4) {
-		switch (h_len) {
-		case 4:
-			conv_func = neon_conv_real4;
-			break;
-		case 8:
-			conv_func = neon_conv_real8;
-			break;
-		case 12:
-			conv_func = neon_conv_real12;
-			break;
-		case 16:
-			conv_func = neon_conv_real16;
-			break;
-		case 20:
-			conv_func = neon_conv_real20;
-			break;
-		}
+	switch (h_len) {
+	case 4:
+		conv_func = neon_conv_real4;
+		break;
+	case 8:
+		conv_func = neon_conv_real8;
+		break;
+	case 12:
+		conv_func = neon_conv_real12;
+		break;
+	case 16:
+		conv_func = neon_conv_real16;
+		break;
+	case 20:
+		conv_func = neon_conv_real20;
+		break;
 	}
 #endif
 	if (conv_func) {
@@ -107,7 +104,7 @@ int convolve_real(float *x, int x_len,
 		_base_convolve_real(x, x_len,
 				    h, h_len,
 				    y, y_len,
-				    start, len, step, offset);
+				    start, len);
 	}
 
 	return len;
@@ -118,18 +115,17 @@ int convolve_real(float *x, int x_len,
 int convolve_complex(float *x, int x_len,
 		     float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len,
-		     int step, int offset)
+		     int start, int len)
 {
 	void (*conv_func)(float *, float *, float *, int, int) = NULL;
 
-	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
 #ifdef HAVE_NEON
-	if (step <= 4 && !(h_len % 4))
+	if (!(h_len % 4))
 		conv_func = neon_conv_cmplx_4n;
 #endif
 	if (conv_func) {
@@ -139,7 +135,7 @@ int convolve_complex(float *x, int x_len,
 		_base_convolve_complex(x, x_len,
 				       h, h_len,
 				       y, y_len,
-				       start, len, step, offset);
+				       start, len);
 	}
 
 	return len;

Transceiver52M/arch/arm/convolve_neon.S

@@ -2,6 +2,8 @@
  * NEON Convolution
  * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -92,8 +94,8 @@ neon_conv_real12:
 	vld2.32     {q8-q9}, [r4], r6
 	vld2.32   {q10-q11}, [r5], r6
 #ifdef HAVE_NEON_FMA
-	vfma.f32         q1,   q6, q0
-	vfma.f32         q3,   q7, q0
+	vmul.f32         q1,   q6, q0
+	vmul.f32         q3,   q7, q0
 	vfma.f32         q1,   q8, q2
 	vfma.f32         q3,   q9, q2
 	vfma.f32         q1,  q10, q4

Transceiver52M/arch/arm/mult.c

@@ -2,6 +2,8 @@
  * NEON scaling
  * Copyright (C) 2012,2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

Transceiver52M/arch/arm/mult_neon.S

@@ -2,6 +2,8 @@
  * NEON complex multiplication
  * Copyright (C) 2012,2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

Transceiver52M/arch/arm/scale.c

@@ -2,6 +2,8 @@
  * NEON scaling
  * Copyright (C) 2012,2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

Transceiver52M/arch/arm/scale_neon.S

@@ -2,6 +2,8 @@
  * ARM NEON Scaling
  * Copyright (C) 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either

Transceiver52M/arch/common/Makefile.am

@@ -0,0 +1,15 @@
+AM_CFLAGS = -Wall -std=gnu99
+
+noinst_LTLIBRARIES = libarch_common.la
+
+noinst_HEADERS = \
+        convolve.h \
+        convert.h \
+        scale.h \
+        mult.h \
+        fft.h
+
+libarch_common_la_SOURCES = \
+        convolve_base.c \
+        convert_base.c \
+        fft.c

Transceiver52M/arch/common/convert_base.c

@@ -2,6 +2,8 @@
  * Conversion
  * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -31,4 +33,3 @@ void base_convert_short_float(float *out, const short *in, int len)
 	for (int i = 0; i < len; i++)
 		out[i] = in[i];
 }
-

Transceiver52M/arch/common/convolve.h

@@ -1,31 +1,27 @@
 #ifndef _CONVOLVE_H_
 #define _CONVOLVE_H_
 
-void *convolve_h_alloc(int num);
+void *convolve_h_alloc(size_t num);
 
 int convolve_real(const float *x, int x_len,
 		  const float *h, int h_len,
 		  float *y, int y_len,
-		  int start, int len,
-		  int step, int offset);
+		  int start, int len);
 
 int convolve_complex(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len,
-		     int step, int offset);
+		     int start, int len);
 
 int base_convolve_real(const float *x, int x_len,
 		       const float *h, int h_len,
 		       float *y, int y_len,
-		       int start, int len,
-		       int step, int offset);
+		       int start, int len);
 
 int base_convolve_complex(const float *x, int x_len,
 			  const float *h, int h_len,
 			  float *y, int y_len,
-			  int start, int len,
-			  int step, int offset);
+			  int start, int len);
 
 void convolve_init(void);
 

Transceiver52M/arch/common/convolve_base.c

@@ -2,6 +2,8 @@
  * Convolution
  * Copyright (C) 2012, 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -41,17 +43,17 @@ static void mac_cmplx(const float *x, const float *h, float *y)
 
 /* Base vector complex-complex multiply and accumulate */
 static void mac_real_vec_n(const float *x, const float *h, float *y,
-			   int len, int step, int offset)
+			   int len)
 {
-	for (int i = offset; i < len; i += step)
+	for (int i=0; i<len; i++)
 		mac_real(&x[2 * i], &h[2 * i], y);
 }
 
 /* Base vector complex-complex multiply and accumulate */
 static void mac_cmplx_vec_n(const float *x, const float *h, float *y,
-			    int len, int step, int offset)
+			    int len)
 {
-	for (int i = offset; i < len; i += step)
+	for (int i=0; i<len; i++)
 		mac_cmplx(&x[2 * i], &h[2 * i], y);
 }
 
@@ -59,14 +61,12 @@ static void mac_cmplx_vec_n(const float *x, const float *h, float *y,
 int _base_convolve_real(const float *x, int x_len,
 			const float *h, int h_len,
 			float *y, int y_len,
-			int start, int len,
-			int step, int offset)
+			int start, int len)
 {
 	for (int i = 0; i < len; i++) {
 		mac_real_vec_n(&x[2 * (i - (h_len - 1) + start)],
 			       h,
-			       &y[2 * i], h_len,
-			       step, offset);
+			       &y[2 * i], h_len);
 	}
 
 	return len;
@@ -76,14 +76,13 @@ int _base_convolve_real(const float *x, int x_len,
 int _base_convolve_complex(const float *x, int x_len,
 			   const float *h, int h_len,
 			   float *y, int y_len,
-			   int start, int len,
-			   int step, int offset)
+			   int start, int len)
 {
 	for (int i = 0; i < len; i++) {
 		mac_cmplx_vec_n(&x[2 * (i - (h_len - 1) + start)],
 				h,
 				&y[2 * i],
-				h_len, step, offset);
+				h_len);
 	}
 
 	return len;
@@ -91,10 +90,10 @@ int _base_convolve_complex(const float *x, int x_len,
 
 /* Buffer validity checks */
 int bounds_check(int x_len, int h_len, int y_len,
-		 int start, int len, int step)
+		 int start, int len)
 {
 	if ((x_len < 1) || (h_len < 1) ||
-	    (y_len < 1) || (len < 1) || (step < 1)) {
+	    (y_len < 1) || (len < 1)) {
 		fprintf(stderr, "Convolve: Invalid input\n");
 		return -1;
 	}
@@ -113,10 +112,9 @@ int bounds_check(int x_len, int h_len, int y_len,
 int base_convolve_real(const float *x, int x_len,
 		       const float *h, int h_len,
 		       float *y, int y_len,
-		       int start, int len,
-		       int step, int offset)
+		       int start, int len)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
@@ -124,17 +122,16 @@ int base_convolve_real(const float *x, int x_len,
 	return _base_convolve_real(x, x_len,
 				   h, h_len,
 				   y, y_len,
-				   start, len, step, offset);
+				   start, len);
 }
 
 /* API: Non-aligned (no SSE) complex-complex */
 int base_convolve_complex(const float *x, int x_len,
 			  const float *h, int h_len,
 			  float *y, int y_len,
-			  int start, int len,
-			  int step, int offset)
+			  int start, int len)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
@@ -142,11 +139,11 @@ int base_convolve_complex(const float *x, int x_len,
 	return _base_convolve_complex(x, x_len,
 				      h, h_len,
 				      y, y_len,
-				      start, len, step, offset);
+				      start, len);
 }
 
 /* Aligned filter tap allocation */
-void *convolve_h_alloc(int len)
+void *convolve_h_alloc(size_t len)
 {
 #ifdef HAVE_SSE3
 	return memalign(16, len * 2 * sizeof(float));

Transceiver52M/arch/common/fft.c

@@ -3,6 +3,8 @@
  *
  * Copyright (C) 2012 Tom Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * 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
@@ -101,7 +103,7 @@ void free_fft(struct fft_hdl *hdl)
 }
 
 /*! \brief Run multiple DFT operations with the initialized plan
- *  \param[in] hdl handle to an intitialized fft struct
+ *  \param[in] hdl handle to an initialized fft struct
  *
  * Input and output buffers are configured with init_fft().
  */

Transceiver52M/arch/x86/Makefile.am

@@ -1,11 +1,15 @@
-if !ARCH_ARM
 AM_CFLAGS = -Wall -std=gnu99 -I${srcdir}/../common
 
 noinst_LTLIBRARIES = libarch.la
 noinst_LTLIBRARIES += libarch_sse_3.la
 noinst_LTLIBRARIES += libarch_sse_4_1.la
 
-libarch_la_LIBADD =
+noinst_HEADERS = \
+	convert_sse_3.h \
+	convert_sse_4_1.h \
+	convolve_sse_3.h
+
+libarch_la_LIBADD = $(top_builddir)/Transceiver52M/arch/common/libarch_common.la
 
 # SSE 3 specific code
 if HAVE_SSE3
@@ -25,8 +29,5 @@ libarch_la_LIBADD += libarch_sse_4_1.la
 endif
 
 libarch_la_SOURCES = \
-	../common/convolve_base.c \
-	../common/convert_base.c \
 	convert.c \
 	convolve.c
-endif

Transceiver52M/arch/x86/convert.c

@@ -27,7 +27,7 @@
 #include "config.h"
 #endif
 
-/* Architecture dependant function pointers */
+/* Architecture dependent function pointers */
 struct convert_cpu_context {
 	void (*convert_si16_ps_16n) (float *, const short *, int);
 	void (*convert_si16_ps) (float *, const short *, int);

Transceiver52M/arch/x86/convolve.c

@@ -27,28 +27,28 @@
 #include "config.h"
 #endif
 
-/* Architecture dependant function pointers */
+/* Architecture dependent function pointers */
 struct convolve_cpu_context {
 	void (*conv_cmplx_4n) (const float *, int, const float *, int, float *,
-			       int, int, int, int, int);
+			       int, int, int);
 	void (*conv_cmplx_8n) (const float *, int, const float *, int, float *,
-			       int, int, int, int, int);
+			       int, int, int);
 	void (*conv_cmplx) (const float *, int, const float *, int, float *,
-			    int, int, int, int, int);
+			    int, int, int);
 	void (*conv_real4) (const float *, int, const float *, int, float *,
-			    int, int, int, int, int);
+			    int, int, int);
 	void (*conv_real8) (const float *, int, const float *, int, float *,
-			    int, int, int, int, int);
+			    int, int, int);
 	void (*conv_real12) (const float *, int, const float *, int, float *,
-			     int, int, int, int, int);
+			     int, int, int);
 	void (*conv_real16) (const float *, int, const float *, int, float *,
-			     int, int, int, int, int);
+			     int, int, int);
 	void (*conv_real20) (const float *, int, const float *, int, float *,
-			     int, int, int, int, int);
+			     int, int, int);
 	void (*conv_real4n) (const float *, int, const float *, int, float *,
-			     int, int, int, int, int);
+			     int, int, int);
 	void (*conv_real) (const float *, int, const float *, int, float *, int,
-			   int, int, int, int);
+			   int, int);
 };
 static struct convolve_cpu_context c;
 
@@ -56,19 +56,17 @@ static struct convolve_cpu_context c;
 int _base_convolve_real(const float *x, int x_len,
 			const float *h, int h_len,
 			float *y, int y_len,
-			int start, int len,
-			int step, int offset);
+			int start, int len);
 
 int _base_convolve_complex(const float *x, int x_len,
 			   const float *h, int h_len,
 			   float *y, int y_len,
-			   int start, int len,
-			   int step, int offset);
+			   int start, int len);
 
 int bounds_check(int x_len, int h_len, int y_len,
-		 int start, int len, int step);
+		 int start, int len);
 
-/* API: Initalize convolve module */
+/* API: Initialize convolve module */
 void convolve_init(void)
 {
 	c.conv_cmplx_4n = (void *)_base_convolve_complex;
@@ -99,46 +97,37 @@ void convolve_init(void)
 /* API: Aligned complex-real */
 int convolve_real(const float *x, int x_len,
 		  const float *h, int h_len,
-		  float *y, int y_len, int start, int len, int step, int offset)
+		  float *y, int y_len, int start, int len)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
-	if (step <= 4) {
-		switch (h_len) {
-		case 4:
-			c.conv_real4(x, x_len, h, h_len, y, y_len, start, len,
-				     step, offset);
-			break;
-		case 8:
-			c.conv_real8(x, x_len, h, h_len, y, y_len, start, len,
-				     step, offset);
-			break;
-		case 12:
-			c.conv_real12(x, x_len, h, h_len, y, y_len, start, len,
-				      step, offset);
-			break;
-		case 16:
-			c.conv_real16(x, x_len, h, h_len, y, y_len, start, len,
-				      step, offset);
-			break;
-		case 20:
-			c.conv_real20(x, x_len, h, h_len, y, y_len, start, len,
-				      step, offset);
-			break;
-		default:
-			if (!(h_len % 4))
-				c.conv_real4n(x, x_len, h, h_len, y, y_len,
-					      start, len, step, offset);
-			else
-				c.conv_real(x, x_len, h, h_len, y, y_len, start,
-					    len, step, offset);
-		}
-	} else
-		c.conv_real(x, x_len, h, h_len, y, y_len, start, len, step,
-			    offset);
+	switch (h_len) {
+	case 4:
+		c.conv_real4(x, x_len, h, h_len, y, y_len, start, len);
+		break;
+	case 8:
+		c.conv_real8(x, x_len, h, h_len, y, y_len, start, len);
+		break;
+	case 12:
+		c.conv_real12(x, x_len, h, h_len, y, y_len, start, len);
+		break;
+	case 16:
+		c.conv_real16(x, x_len, h, h_len, y, y_len, start, len);
+		break;
+	case 20:
+		c.conv_real20(x, x_len, h, h_len, y, y_len, start, len);
+		break;
+	default:
+		if (!(h_len % 4))
+			c.conv_real4n(x, x_len, h, h_len, y, y_len,
+				      start, len);
+		else
+			c.conv_real(x, x_len, h, h_len, y, y_len, start,
+				    len);
+	}
 
 	return len;
 }
@@ -147,26 +136,19 @@ int convolve_real(const float *x, int x_len,
 int convolve_complex(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset)
+		     int start, int len)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
-	if (step <= 4) {
-		if (!(h_len % 8))
-			c.conv_cmplx_8n(x, x_len, h, h_len, y, y_len, start,
-					len, step, offset);
-		else if (!(h_len % 4))
-			c.conv_cmplx_4n(x, x_len, h, h_len, y, y_len, start,
-					len, step, offset);
-		else
-			c.conv_cmplx(x, x_len, h, h_len, y, y_len, start, len,
-				     step, offset);
-	} else
-		c.conv_cmplx(x, x_len, h, h_len, y, y_len, start, len, step,
-			     offset);
+	if (!(h_len % 8))
+		c.conv_cmplx_8n(x, x_len, h, h_len, y, y_len, start, len);
+	else if (!(h_len % 4))
+		c.conv_cmplx_4n(x, x_len, h, h_len, y, y_len, start, len);
+	else
+		c.conv_cmplx(x, x_len, h, h_len, y, y_len, start, len);
 
 	return len;
 }

Transceiver52M/arch/x86/convolve_sse_3.c

@@ -34,12 +34,12 @@
 void sse_conv_real4(const float *x, int x_len,
 		    const float *h, int h_len,
 		    float *y, int y_len,
-		    int start, int len, int step, int offset)
+		    int start, int len)
 {
 	/* NOTE: The parameter list of this function has to match the parameter
 	 * list of _base_convolve_real() in convolve_base.c. This specific
 	 * implementation, ignores some of the parameters of
-	 * _base_convolve_complex(), which are: x_len, y_len, offset, step */
+	 * _base_convolve_complex(), which are: x_len, y_len. */
 
 	__m128 m0, m1, m2, m3, m4, m5, m6, m7;
 
@@ -75,7 +75,7 @@ void sse_conv_real4(const float *x, int x_len,
 void sse_conv_real8(const float *x, int x_len,
 		    const float *h, int h_len,
 		    float *y, int y_len,
-		    int start, int len, int step, int offset)
+		    int start, int len)
 {
 	/* See NOTE in sse_conv_real4() */
 
@@ -126,7 +126,7 @@ void sse_conv_real8(const float *x, int x_len,
 void sse_conv_real12(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset)
+		     int start, int len)
 {
 	/* See NOTE in sse_conv_real4() */
 
@@ -192,7 +192,7 @@ void sse_conv_real12(const float *x, int x_len,
 void sse_conv_real16(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset)
+		     int start, int len)
 {
 	/* See NOTE in sse_conv_real4() */
 
@@ -271,7 +271,7 @@ void sse_conv_real16(const float *x, int x_len,
 void sse_conv_real20(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset)
+		     int start, int len)
 {
 	/* See NOTE in sse_conv_real4() */
 
@@ -361,7 +361,7 @@ void sse_conv_real20(const float *x, int x_len,
 void sse_conv_real4n(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset)
+		     int start, int len)
 {
 	/* See NOTE in sse_conv_real4() */
 
@@ -408,12 +408,12 @@ void sse_conv_real4n(const float *x, int x_len,
 void sse_conv_cmplx_4n(const float *x, int x_len,
 		       const float *h, int h_len,
 		       float *y, int y_len,
-		       int start, int len, int step, int offset)
+		       int start, int len)
 {
 	/* NOTE: The parameter list of this function has to match the parameter
 	 * list of _base_convolve_complex() in convolve_base.c. This specific
 	 * implementation, ignores some of the parameters of
-	 * _base_convolve_complex(), which are: x_len, y_len, offset, step. */
+	 * _base_convolve_complex(), which are: x_len, y_len. */
 
 	__m128 m0, m1, m2, m3, m4, m5, m6, m7;
 
@@ -466,7 +466,7 @@ void sse_conv_cmplx_4n(const float *x, int x_len,
 void sse_conv_cmplx_8n(const float *x, int x_len,
 		       const float *h, int h_len,
 		       float *y, int y_len,
-		       int start, int len, int step, int offset)
+		       int start, int len)
 {
 	/* See NOTE in sse_conv_cmplx_4n() */
 

Transceiver52M/arch/x86/convolve_sse_3.h

@@ -23,46 +23,46 @@
 void sse_conv_real4(const float *x, int x_len,
 		    const float *h, int h_len,
 		    float *y, int y_len,
-		    int start, int len, int step, int offset);
+		    int start, int len);
 
 /* 8-tap SSE complex-real convolution */
 void sse_conv_real8(const float *x, int x_len,
 		    const float *h, int h_len,
 		    float *y, int y_len,
-		    int start, int len, int step, int offset);
+		    int start, int len);
 
 /* 12-tap SSE complex-real convolution */
 void sse_conv_real12(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset);
+		     int start, int len);
 
 /* 16-tap SSE complex-real convolution */
 void sse_conv_real16(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset);
+		     int start, int len);
 
 /* 20-tap SSE complex-real convolution */
 void sse_conv_real20(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset);
+		     int start, int len);
 
 /* 4*N-tap SSE complex-real convolution */
 void sse_conv_real4n(const float *x, int x_len,
 		     const float *h, int h_len,
 		     float *y, int y_len,
-		     int start, int len, int step, int offset);
+		     int start, int len);
 
 /* 4*N-tap SSE complex-complex convolution */
 void sse_conv_cmplx_4n(const float *x, int x_len,
 		       const float *h, int h_len,
 		       float *y, int y_len,
-		       int start, int len, int step, int offset);
+		       int start, int len);
 
 /* 8*N-tap SSE complex-complex convolution */
 void sse_conv_cmplx_8n(const float *x, int x_len,
 		       const float *h, int h_len,
 		       float *y, int y_len,
-		       int start, int len, int step, int offset);
+		       int start, int len);

Transceiver52M/device/Makefile.am

@@ -0,0 +1,15 @@
+include $(top_srcdir)/Makefile.common
+
+SUBDIRS = common
+
+if DEVICE_USRP1
+SUBDIRS += usrp1
+endif
+
+if DEVICE_UHD
+SUBDIRS += uhd
+endif
+
+if DEVICE_LMS
+SUBDIRS += lms
+endif

Transceiver52M/device/common/Makefile.am

@@ -0,0 +1,12 @@
+include $(top_srcdir)/Makefile.common
+
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES)
+AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LMS_CFLAGS)
+
+
+noinst_HEADERS = radioDevice.h smpl_buf.h
+
+noinst_LTLIBRARIES = libdevice_common.la
+
+libdevice_common_la_SOURCES = \
+	smpl_buf.cpp

Transceiver52M/device/common/radioDevice.h

@@ -1,7 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
+* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribution.
 *
 * This use of this software may be subject to additional restrictions.
 * See the LEGAL file in the main directory for details.
@@ -18,6 +18,14 @@
 #include <string>
 #include <vector>
 
+#include "GSMCommon.h"
+#include "Logger.h"
+
+extern "C" {
+#include "config_defs.h"
+#include "osmo_signal.h"
+}
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -33,7 +41,7 @@ class RadioDevice {
 
   public:
   /* Available transport bus types */
-  enum TxWindowType { TX_WINDOW_USRP1, TX_WINDOW_FIXED };
+  enum TxWindowType { TX_WINDOW_USRP1, TX_WINDOW_FIXED, TX_WINDOW_LMS1 };
 
   /* Radio interface types */
   enum InterfaceType {
@@ -43,12 +51,6 @@ class RadioDevice {
     MULTI_ARFCN,
   };
 
-  enum ReferenceType {
-    REF_INTERNAL,
-    REF_EXTERNAL,
-    REF_GPS,
-  };
-
   static RadioDevice *make(size_t tx_sps, size_t rx_sps, InterfaceType type,
                            size_t chans = 1, double offset = 0.0,
                            const std::vector<std::string>& tx_paths = std::vector<std::string>(1, ""),
@@ -68,9 +70,6 @@ class RadioDevice {
   /** Get the Tx window type */
   virtual enum TxWindowType getWindowType()=0;
 
-  /** Enable thread priority */
-  virtual void setPriority(float prio = 0.5) = 0;
-
   /**
 	Read samples from the radio.
 	@param buf preallocated buf to contain read result
@@ -132,6 +131,9 @@ class RadioDevice {
   /** sets the transmit chan gain, returns the gain setting **/
   virtual double setTxGain(double dB, size_t chan = 0) = 0;
 
+  /** get transmit gain */
+  virtual double getTxGain(size_t chan = 0) = 0;
+
   /** return maximum Tx Gain **/
   virtual double maxTxGain(void) = 0;
 
@@ -150,12 +152,69 @@ class RadioDevice {
   /** return the used RX path */
   virtual std::string getTxAntenna(size_t chan = 0) = 0;
 
+  /** return whether user drives synchronization of Tx/Rx of USRP */
+  virtual bool requiresRadioAlign() = 0;
+
+  /** Minimum latency that the device can achieve */
+  virtual GSM::Time minLatency() = 0;
+
   /** Return internal status values */
   virtual double getTxFreq(size_t chan = 0) = 0;
   virtual double getRxFreq(size_t chan = 0) = 0;
   virtual double getSampleRate()=0;
-  virtual double numberRead()=0;
-  virtual double numberWritten()=0;
+
+  protected:
+  size_t tx_sps, rx_sps;
+  InterfaceType iface;
+  size_t chans;
+  double lo_offset;
+  std::vector<std::string> tx_paths, rx_paths;
+  std::vector<struct device_counters> m_ctr;
+
+  RadioDevice(size_t tx_sps, size_t rx_sps, InterfaceType type, size_t chan_num, double offset,
+              const std::vector<std::string>& tx_paths,
+              const std::vector<std::string>& rx_paths):
+		tx_sps(tx_sps), rx_sps(rx_sps), iface(type), chans(chan_num), lo_offset(offset),
+		tx_paths(tx_paths), rx_paths(rx_paths)
+	{
+		if (iface == MULTI_ARFCN) {
+			LOGC(DDEV, INFO) << "Multi-ARFCN: "<< chan_num << " logical chans -> 1 physical chans";
+			chans = 1;
+		}
+
+		m_ctr.resize(chans);
+		for (size_t i = 0; i < chans; i++) {
+			memset(&m_ctr[i], 0, sizeof(m_ctr[i]));
+			m_ctr[i].chan = i;
+		}
+	}
+
+  bool set_antennas() {
+	unsigned int i;
+
+	for (i = 0; i < tx_paths.size(); i++) {
+		if (tx_paths[i] == "")
+			continue;
+		LOGCHAN(i, DDEV, DEBUG) << "Configuring Tx antenna " << tx_paths[i];
+		if (!setTxAntenna(tx_paths[i], i)) {
+			LOGCHAN(i, DDEV, ALERT) << "Failed configuring Tx antenna " << tx_paths[i];
+			return false;
+		}
+	}
+
+	for (i = 0; i < rx_paths.size(); i++) {
+		if (rx_paths[i] == "")
+			continue;
+		LOGCHAN(i, DDEV, DEBUG) << "Configuring Rx antenna " << rx_paths[i];
+		if (!setRxAntenna(rx_paths[i], i)) {
+			LOGCHAN(i, DDEV, ALERT) << "Failed configuring Rx antenna " << rx_paths[i];
+			return false;
+		}
+	}
+	LOG(INFO) << "Antennas configured successfully";
+	return true;
+  }
+
 
 };
 

Transceiver52M/device/common/smpl_buf.cpp

@@ -0,0 +1,171 @@
+/*
+ * Sample Buffer - Allows reading and writing of timed samples
+ *
+ * Copyright 2010,2011 Free Software Foundation, Inc.
+ * Copyright (C) 2015 Ettus Research LLC
+ * Copyright 2019 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * Author: Tom Tsou <tom.tsou@ettus.com>
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+#include "smpl_buf.h"
+#include <inttypes.h>
+
+smpl_buf::smpl_buf(size_t len)
+	: buf_len(len), time_start(0), time_end(0),
+	  data_start(0), data_end(0)
+{
+	data = new uint32_t[len];
+}
+
+smpl_buf::~smpl_buf()
+{
+	delete[] data;
+}
+
+ssize_t smpl_buf::avail_smpls(TIMESTAMP timestamp) const
+{
+	if (timestamp < time_start)
+		return ERROR_TIMESTAMP;
+	else if (timestamp >= time_end)
+		return 0;
+	else
+		return time_end - timestamp;
+}
+
+ssize_t smpl_buf::read(void *buf, size_t len, TIMESTAMP timestamp)
+{
+	int type_sz = 2 * sizeof(short);
+
+	// Check for valid read
+	if (timestamp < time_start)
+		return ERROR_TIMESTAMP;
+	if (timestamp >= time_end)
+		return 0;
+	if (len >= buf_len)
+		return ERROR_READ;
+
+	// How many samples should be copied
+	size_t num_smpls = time_end - timestamp;
+	if (num_smpls > len)
+		num_smpls = len;
+
+	// Starting index
+	size_t read_start = (data_start + (timestamp - time_start)) % buf_len;
+
+	// Read it
+	if (read_start + num_smpls < buf_len) {
+		size_t numBytes = len * type_sz;
+		memcpy(buf, data + read_start, numBytes);
+	} else {
+		size_t first_cp = (buf_len - read_start) * type_sz;
+		size_t second_cp = len * type_sz - first_cp;
+
+		memcpy(buf, data + read_start, first_cp);
+		memcpy((char*) buf + first_cp, data, second_cp);
+	}
+
+	data_start = (read_start + len) % buf_len;
+	time_start = timestamp + len;
+
+	if (time_start > time_end)
+		return ERROR_READ;
+	else
+		return num_smpls;
+}
+
+ssize_t smpl_buf::write(void *buf, size_t len, TIMESTAMP timestamp)
+{
+	int type_sz = 2 * sizeof(short);
+
+	// Check for valid write
+	if ((len == 0) || (len >= buf_len))
+		return ERROR_WRITE;
+	if ((timestamp + len) <= time_end)
+		return ERROR_TIMESTAMP;
+
+	if (timestamp < time_end) {
+		LOGC(DDEV, ERR) << "Overwriting old buffer data: timestamp="
+				<< timestamp << " time_end=" << time_end;
+		// Do not return error here, because it's a rounding error and is not fatal
+	}
+	if (timestamp > time_end && time_end != 0) {
+		LOGC(DDEV, ERR) << "Skipping buffer data: timestamp="
+				<< timestamp << " time_end=" << time_end;
+		// Do not return error here, because it's a rounding error and is not fatal
+	}
+
+	// Starting index
+	size_t write_start = (data_start + (timestamp - time_start)) % buf_len;
+
+	// Write it
+	if ((write_start + len) < buf_len) {
+		size_t numBytes = len * type_sz;
+		memcpy(data + write_start, buf, numBytes);
+	} else {
+		size_t first_cp = (buf_len - write_start) * type_sz;
+		size_t second_cp = len * type_sz - first_cp;
+
+		memcpy(data + write_start, buf, first_cp);
+		memcpy(data, (char*) buf + first_cp, second_cp);
+	}
+
+	data_end = (write_start + len) % buf_len;
+	time_end = timestamp + len;
+
+	if (!data_start)
+		data_start = write_start;
+
+	if (((write_start + len) > buf_len) && (data_end > data_start))
+		return ERROR_OVERFLOW;
+	else if (time_end <= time_start)
+		return ERROR_WRITE;
+	else
+		return len;
+}
+
+std::string smpl_buf::str_status(TIMESTAMP timestamp) const
+{
+	std::ostringstream ost("Sample buffer: ");
+
+	ost << "timestamp = " << timestamp;
+	ost << ", length = " << buf_len;
+	ost << ", time_start = " << time_start;
+	ost << ", time_end = " << time_end;
+	ost << ", data_start = " << data_start;
+	ost << ", data_end = " << data_end;
+
+	return ost.str();
+}
+
+std::string smpl_buf::str_code(ssize_t code)
+{
+	switch (code) {
+	case ERROR_TIMESTAMP:
+		return "Sample buffer: Requested timestamp is not valid";
+	case ERROR_READ:
+		return "Sample buffer: Read error";
+	case ERROR_WRITE:
+		return "Sample buffer: Write error";
+	case ERROR_OVERFLOW:
+		return "Sample buffer: Overrun";
+	default:
+		return "Sample buffer: Unknown error";
+	}
+}

Transceiver52M/device/common/smpl_buf.h

@@ -0,0 +1,89 @@
+/*
+ * Sample Buffer - Allows reading and writing of timed samples
+ *
+ * Copyright 2010,2011 Free Software Foundation, Inc.
+ * Copyright (C) 2015 Ettus Research LLC
+ * Copyright 2019 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * Author: Tom Tsou <tom.tsou@ettus.com>
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+#pragma once
+
+#include <unistd.h>
+
+#include "radioDevice.h"
+
+/*
+    Sample Buffer - Allows reading and writing of timed samples using osmo-trx
+                    timestamps. Time conversions are handled
+                    internally or accessible through the static convert calls.
+*/
+class smpl_buf {
+public:
+	/** Sample buffer constructor
+	    @param len number of 32-bit samples the buffer should hold
+	    @param timestamp
+	*/
+	smpl_buf(size_t len);
+	~smpl_buf();
+
+	/** Query number of samples available for reading
+	    @param timestamp time of first sample
+	    @return number of available samples or error
+	*/
+	ssize_t avail_smpls(TIMESTAMP timestamp) const;
+
+	/** Read and write
+	    @param buf pointer to buffer
+	    @param len number of samples desired to read or write
+	    @param timestamp time of first stample
+	    @return number of actual samples read or written or error
+	*/
+	ssize_t read(void *buf, size_t len, TIMESTAMP timestamp);
+	ssize_t write(void *buf, size_t len, TIMESTAMP timestamp);
+
+	/** Buffer status string
+	    @return a formatted string describing internal buffer state
+	*/
+	std::string str_status(TIMESTAMP timestamp) const;
+
+	/** Formatted error string
+	    @param code an error code
+	    @return a formatted error string
+	*/
+	static std::string str_code(ssize_t code);
+
+	enum err_code {
+		ERROR_TIMESTAMP = -1,
+		ERROR_READ = -2,
+		ERROR_WRITE = -3,
+		ERROR_OVERFLOW = -4
+	};
+
+private:
+	uint32_t *data;
+	size_t buf_len;
+
+	TIMESTAMP time_start;
+	TIMESTAMP time_end;
+
+	size_t data_start;
+	size_t data_end;
+};

Transceiver52M/device/lms/LMSDevice.cpp

@@ -0,0 +1,845 @@
+/*
+* Copyright 2018 sysmocom - s.f.m.c. GmbH
+*
+* SPDX-License-Identifier: AGPL-3.0+
+*
+	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 <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include "Logger.h"
+#include "Threads.h"
+#include "LMSDevice.h"
+#include "Utils.h"
+
+#include <lime/LimeSuite.h>
+
+extern "C" {
+#include "osmo_signal.h"
+#include <osmocom/core/utils.h>
+}
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+using namespace std;
+
+#define MAX_ANTENNA_LIST_SIZE 10
+#define LMS_SAMPLE_RATE GSMRATE*32
+#define GSM_CARRIER_BW 270000.0 /* 270kHz */
+#define LMS_MIN_BW_SUPPORTED 2.5e6 /* 2.5mHz, minimum supported by LMS */
+#define LMS_CALIBRATE_BW_HZ OSMO_MAX(GSM_CARRIER_BW, LMS_MIN_BW_SUPPORTED)
+#define SAMPLE_BUF_SZ    (1 << 20) /* Size of Rx timestamp based Ring buffer, in bytes */
+
+LMSDevice::LMSDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chans, double lo_offset,
+		     const std::vector<std::string>& tx_paths,
+		     const std::vector<std::string>& rx_paths):
+	RadioDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths),
+	m_lms_dev(NULL)
+{
+	LOGC(DDEV, INFO) << "creating LMS device...";
+
+	m_lms_stream_rx.resize(chans);
+	m_lms_stream_tx.resize(chans);
+	rx_gains.resize(chans);
+	tx_gains.resize(chans);
+
+	rx_buffers.resize(chans);
+}
+
+LMSDevice::~LMSDevice()
+{
+	unsigned int i;
+	LOGC(DDEV, INFO) << "Closing LMS device";
+	if (m_lms_dev) {
+		/* disable all channels */
+		for (i=0; i<chans; i++) {
+			LMS_EnableChannel(m_lms_dev, LMS_CH_RX, i, false);
+			LMS_EnableChannel(m_lms_dev, LMS_CH_TX, i, false);
+		}
+		LMS_Close(m_lms_dev);
+		m_lms_dev = NULL;
+	}
+
+	for (size_t i = 0; i < rx_buffers.size(); i++)
+		delete rx_buffers[i];
+}
+
+static void lms_log_callback(int lvl, const char *msg)
+{
+	/* map lime specific log levels */
+	static const int lvl_map[5] = {
+		[0] = LOGL_FATAL,
+		[LMS_LOG_ERROR] = LOGL_ERROR,
+		[LMS_LOG_WARNING] = LOGL_NOTICE,
+		[LMS_LOG_INFO] = LOGL_INFO,
+		[LMS_LOG_DEBUG] = LOGL_DEBUG,
+	};
+	/* protect against future higher log level values (lower importance) */
+	if ((unsigned int) lvl >= ARRAY_SIZE(lvl_map))
+		lvl = ARRAY_SIZE(lvl_map)-1;
+
+	LOGLV(DLMS, lvl_map[lvl]) << msg;
+}
+
+static void print_range(const char* name, lms_range_t *range)
+{
+	LOGC(DDEV, INFO) << name << ": Min=" << range->min << " Max=" << range->max
+		   << " Step=" << range->step;
+}
+
+/*! Find the device string that matches all filters from \a args.
+ *  \param[in] info_list device addresses found by LMS_GetDeviceList()
+ *  \param[in] count length of info_list
+ *  \param[in] args dev-args value from osmo-trx.cfg, containing comma separated key=value pairs
+ *  \return index of first matching device or -1 (no match) */
+int info_list_find(lms_info_str_t* info_list, unsigned int count, const std::string &args)
+{
+	unsigned int i, j;
+	vector<string> filters;
+
+	filters = comma_delimited_to_vector(args.c_str());
+
+	/* iterate over device addresses */
+	for (i=0; i < count; i++) {
+		/* check if all filters match */
+		bool match = true;
+		for (j=0; j < filters.size(); j++) {
+			if (!strstr(info_list[i], filters[j].c_str())) {
+				match = false;
+				break;
+			}
+		}
+
+		if (match)
+			return i;
+	}
+	return -1;
+}
+
+int LMSDevice::open(const std::string &args, int ref, bool swap_channels)
+{
+	lms_info_str_t* info_list;
+	const lms_dev_info_t* device_info;
+	lms_range_t range_sr;
+	float_type sr_host, sr_rf;
+	unsigned int i, n;
+	int rc, dev_id;
+
+	LOGC(DDEV, INFO) << "Opening LMS device..";
+
+	LMS_RegisterLogHandler(&lms_log_callback);
+
+	if ((n = LMS_GetDeviceList(NULL)) < 0)
+		LOGC(DDEV, ERROR) << "LMS_GetDeviceList(NULL) failed";
+	LOGC(DDEV, INFO) << "Devices found: " << n;
+	if (n < 1)
+	    return -1;
+
+	info_list = new lms_info_str_t[n];
+
+	if (LMS_GetDeviceList(info_list) < 0)
+		LOGC(DDEV, ERROR) << "LMS_GetDeviceList(info_list) failed";
+
+	for (i = 0; i < n; i++)
+		LOGC(DDEV, INFO) << "Device [" << i << "]: " << info_list[i];
+
+	dev_id = info_list_find(info_list, n, args);
+	if (dev_id == -1) {
+		LOGC(DDEV, ERROR) << "No LMS device found with address '" << args << "'";
+		delete[] info_list;
+		return -1;
+	}
+
+	LOGC(DDEV, INFO) << "Using device[" << dev_id << "]";
+	rc = LMS_Open(&m_lms_dev, info_list[dev_id], NULL);
+	if (rc != 0) {
+		LOGC(DDEV, ERROR) << "LMS_GetDeviceList() failed)";
+		delete [] info_list;
+		return -1;
+	}
+
+	delete [] info_list;
+
+	device_info = LMS_GetDeviceInfo(m_lms_dev);
+
+	if ((ref != REF_EXTERNAL) && (ref != REF_INTERNAL)){
+		LOGC(DDEV, ERROR) << "Invalid reference type";
+		goto out_close;
+	}
+
+	/* if reference clock is external setup must happen _before_ calling LMS_Init */
+	/* FIXME make external reference frequency configurable */
+	if (ref == REF_EXTERNAL) {
+		LOGC(DDEV, INFO) << "Setting External clock reference to 10MHz";
+		/* Assume an external 10 MHz reference clock */
+		if (LMS_SetClockFreq(m_lms_dev, LMS_CLOCK_EXTREF, 10000000.0) < 0)
+			goto out_close;
+	}
+
+	LOGC(DDEV, INFO) << "Init LMS device";
+	if (LMS_Init(m_lms_dev) != 0) {
+		LOGC(DDEV, ERROR) << "LMS_Init() failed";
+		goto out_close;
+	}
+
+	/* LimeSDR-Mini does not have switches but needs soldering to select external/internal clock */
+	/* LimeNET-Micro also does not like selecting internal clock*/
+	/* also set device specific maximum tx levels selected by phasenoise measurements*/
+	if (strncmp(device_info->deviceName,"LimeSDR-USB",11) == 0){
+		/* if reference clock is internal setup must happen _after_ calling LMS_Init */
+		/* according to lms using LMS_CLOCK_EXTREF with a frequency <= 0 is the correct way to set clock to internal reference*/
+		if (ref == REF_INTERNAL) {
+			LOGC(DDEV, INFO) << "Setting Internal clock reference";
+			if (LMS_SetClockFreq(m_lms_dev, LMS_CLOCK_EXTREF, -1) < 0)
+				goto out_close;
+		}
+		maxTxGainClamp = 73.0;
+	} else if (strncmp(device_info->deviceName,"LimeSDR-Mini",12) == 0)
+		maxTxGainClamp = 66.0;
+	else
+		maxTxGainClamp = 71.0; /* "LimeNET-Micro", etc FIXME pciE based LMS boards?*/
+
+	/* enable all used channels */
+	for (i=0; i<chans; i++) {
+		if (LMS_EnableChannel(m_lms_dev, LMS_CH_RX, i, true) < 0)
+			goto out_close;
+		if (LMS_EnableChannel(m_lms_dev, LMS_CH_TX, i, true) < 0)
+			goto out_close;
+	}
+
+	/* set samplerate */
+	if (LMS_GetSampleRateRange(m_lms_dev, LMS_CH_RX, &range_sr))
+		goto out_close;
+	print_range("Sample Rate", &range_sr);
+
+	LOGC(DDEV, INFO) << "Setting sample rate to " << GSMRATE*tx_sps << " " << tx_sps;
+	if (LMS_SetSampleRate(m_lms_dev, GSMRATE*tx_sps, 32) < 0)
+		goto out_close;
+
+	if (LMS_GetSampleRate(m_lms_dev, LMS_CH_RX, 0, &sr_host, &sr_rf))
+		goto out_close;
+	LOGC(DDEV, INFO) << "Sample Rate: Host=" << sr_host << " RF=" << sr_rf;
+
+	/* FIXME: make this device/model dependent, like UHDDevice:dev_param_map! */
+	ts_offset = static_cast<TIMESTAMP>(8.9e-5 * GSMRATE * tx_sps); /* time * sample_rate */
+
+	/* configure antennas */
+	if (!set_antennas()) {
+		LOGC(DDEV, FATAL) << "LMS antenna setting failed";
+		goto out_close;
+	}
+
+	/* Set up per-channel Rx timestamp based Ring buffers */
+	for (size_t i = 0; i < rx_buffers.size(); i++)
+		rx_buffers[i] = new smpl_buf(SAMPLE_BUF_SZ / sizeof(uint32_t));
+
+	started = false;
+
+	return NORMAL;
+
+out_close:
+	LOGC(DDEV, FATAL) << "Error in LMS open, closing: " << LMS_GetLastErrorMessage();
+	LMS_Close(m_lms_dev);
+	m_lms_dev = NULL;
+	return -1;
+}
+
+bool LMSDevice::start()
+{
+	LOGC(DDEV, INFO) << "starting LMS...";
+
+	unsigned int i;
+
+	if (started) {
+		LOGC(DDEV, ERR) << "Device already started";
+		return false;
+	}
+
+	/* configure the channels/streams */
+	for (i=0; i<chans; i++) {
+		/* Set gains for calibration/filter setup */
+		/* TX gain to maximum */
+		setTxGain(maxTxGain(), i);
+		/* RX gain to midpoint */
+		setRxGain((minRxGain() + maxRxGain()) / 2, i);
+
+		/* set up Rx and Tx filters */
+		if (!do_filters(i))
+			return false;
+		/* Perform Rx and Tx calibration */
+		if (!do_calib(i))
+			return false;
+
+		/* configure Streams */
+		m_lms_stream_rx[i] = {};
+		m_lms_stream_rx[i].isTx = false;
+		m_lms_stream_rx[i].channel = i;
+		m_lms_stream_rx[i].fifoSize = 1024 * 1024;
+		m_lms_stream_rx[i].throughputVsLatency = 0.3;
+		m_lms_stream_rx[i].dataFmt = lms_stream_t::LMS_FMT_I16;
+
+		m_lms_stream_tx[i] = {};
+		m_lms_stream_tx[i].isTx = true;
+		m_lms_stream_tx[i].channel = i;
+		m_lms_stream_tx[i].fifoSize = 1024 * 1024;
+		m_lms_stream_tx[i].throughputVsLatency = 0.3;
+		m_lms_stream_tx[i].dataFmt = lms_stream_t::LMS_FMT_I16;
+
+		if (LMS_SetupStream(m_lms_dev, &m_lms_stream_rx[i]) < 0)
+			return false;
+
+		if (LMS_SetupStream(m_lms_dev, &m_lms_stream_tx[i]) < 0)
+			return false;
+	}
+
+	/* now start the streams in a second loop, as we can no longer call
+	 * LMS_SetupStream() after LMS_StartStream() of the first stream */
+	for (i = 0; i < chans; i++) {
+		if (LMS_StartStream(&m_lms_stream_rx[i]) < 0)
+			return false;
+
+		if (LMS_StartStream(&m_lms_stream_tx[i]) < 0)
+			return false;
+	}
+
+	flush_recv(10);
+
+	started = true;
+	return true;
+}
+
+bool LMSDevice::stop()
+{
+	unsigned int i;
+
+	if (!started)
+		return true;
+
+	for (i=0; i<chans; i++) {
+		LMS_StopStream(&m_lms_stream_tx[i]);
+		LMS_StopStream(&m_lms_stream_rx[i]);
+	}
+
+	for (i=0; i<chans; i++) {
+		LMS_DestroyStream(m_lms_dev, &m_lms_stream_tx[i]);
+		LMS_DestroyStream(m_lms_dev, &m_lms_stream_rx[i]);
+	}
+
+	started = false;
+	return true;
+}
+
+/* do rx/tx calibration - depends on gain, freq and bw */
+bool LMSDevice::do_calib(size_t chan)
+{
+	LOGCHAN(chan, DDEV, INFO) << "Calibrating";
+	if (LMS_Calibrate(m_lms_dev, LMS_CH_RX, chan, LMS_CALIBRATE_BW_HZ, 0) < 0)
+		return false;
+	if (LMS_Calibrate(m_lms_dev, LMS_CH_TX, chan, LMS_CALIBRATE_BW_HZ, 0) < 0)
+		return false;
+	return true;
+}
+
+/* do rx/tx filter config - depends on bw only? */
+bool LMSDevice::do_filters(size_t chan)
+{
+	lms_range_t range_lpfbw_rx, range_lpfbw_tx;
+	float_type lpfbw_rx, lpfbw_tx;
+
+	LOGCHAN(chan, DDEV, INFO) << "Setting filters";
+	if (LMS_GetLPFBWRange(m_lms_dev, LMS_CH_RX, &range_lpfbw_rx))
+		return false;
+	print_range("LPFBWRange Rx", &range_lpfbw_rx);
+	if (LMS_GetLPFBWRange(m_lms_dev, LMS_CH_RX, &range_lpfbw_tx))
+		return false;
+	print_range("LPFBWRange Tx", &range_lpfbw_tx);
+
+	lpfbw_rx = OSMO_MIN(OSMO_MAX(1.4001e6, range_lpfbw_rx.min), range_lpfbw_rx.max);
+	lpfbw_tx = OSMO_MIN(OSMO_MAX(5.2e6, range_lpfbw_tx.min), range_lpfbw_tx.max);
+
+	LOGCHAN(chan, DDEV, INFO) << "LPFBW: Rx=" << lpfbw_rx << " Tx=" << lpfbw_tx;
+
+	LOGCHAN(chan, DDEV, INFO) << "Setting LPFBW";
+	if (LMS_SetLPFBW(m_lms_dev, LMS_CH_RX, chan, lpfbw_rx) < 0)
+		return false;
+	if (LMS_SetLPFBW(m_lms_dev, LMS_CH_TX, chan, lpfbw_tx) < 0)
+		return false;
+	return true;
+}
+
+
+double LMSDevice::maxTxGain()
+{
+	return maxTxGainClamp;
+}
+
+double LMSDevice::minTxGain()
+{
+	return 0.0;
+}
+
+double LMSDevice::maxRxGain()
+{
+	return 73.0;
+}
+
+double LMSDevice::minRxGain()
+{
+	return 0.0;
+}
+
+double LMSDevice::setTxGain(double dB, size_t chan)
+{
+	if (dB > maxTxGain())
+		dB = maxTxGain();
+	if (dB < minTxGain())
+		dB = minTxGain();
+
+	LOGCHAN(chan, DDEV, NOTICE) << "Setting TX gain to " << dB << " dB";
+
+	if (LMS_SetGaindB(m_lms_dev, LMS_CH_TX, chan, dB) < 0)
+		LOGCHAN(chan, DDEV, ERR) << "Error setting TX gain to " << dB << " dB";
+	else
+		tx_gains[chan] = dB;
+	return tx_gains[chan];
+}
+
+double LMSDevice::setRxGain(double dB, size_t chan)
+{
+	if (dB > maxRxGain())
+		dB = maxRxGain();
+	if (dB < minRxGain())
+		dB = minRxGain();
+
+	LOGCHAN(chan, DDEV, NOTICE) << "Setting RX gain to " << dB << " dB";
+
+	if (LMS_SetGaindB(m_lms_dev, LMS_CH_RX, chan, dB) < 0)
+		LOGCHAN(chan, DDEV, ERR) << "Error setting RX gain to " << dB << " dB";
+	else
+		rx_gains[chan] = dB;
+	return rx_gains[chan];
+}
+
+void LMSDevice::log_ant_list(bool dir_tx, size_t chan, std::ostringstream& os)
+{
+	lms_name_t name_list[MAX_ANTENNA_LIST_SIZE]; /* large enough list for antenna names. */
+	int num_names;
+	int i;
+
+	num_names = LMS_GetAntennaList(m_lms_dev, dir_tx, chan, name_list);
+	for (i = 0; i < num_names; i++) {
+		if (i)
+			os << ", ";
+		os << "'" << name_list[i] << "'";
+	}
+}
+
+int LMSDevice::get_ant_idx(const std::string & name, bool dir_tx, size_t chan)
+{
+	lms_name_t name_list[MAX_ANTENNA_LIST_SIZE]; /* large enough list for antenna names. */
+	const char* c_name = name.c_str();
+	int num_names;
+	int i;
+
+	num_names = LMS_GetAntennaList(m_lms_dev, dir_tx, chan, name_list);
+	for (i = 0; i < num_names; i++) {
+		if (!strcmp(c_name, name_list[i]))
+			return i;
+	}
+	return -1;
+}
+
+bool LMSDevice::flush_recv(size_t num_pkts)
+{
+	#define CHUNK 625
+	int len = CHUNK * tx_sps;
+	short *buffer = (short*) alloca(sizeof(short) * len * 2);
+	int rc;
+	lms_stream_meta_t rx_metadata = {};
+	rx_metadata.flushPartialPacket = false;
+	rx_metadata.waitForTimestamp = false;
+
+	ts_initial = 0;
+
+	while (!ts_initial || (num_pkts-- > 0)) {
+		rc = LMS_RecvStream(&m_lms_stream_rx[0], &buffer[0], len, &rx_metadata, 100);
+		LOGC(DDEV, DEBUG) << "Flush: Recv buffer of len " << rc << " at " << std::hex << rx_metadata.timestamp;
+		if (rc != len) {
+			LOGC(DDEV, ERROR) << "Flush: Device receive timed out";
+			return false;
+		}
+
+		ts_initial = rx_metadata.timestamp + len;
+	}
+
+	LOGC(DDEV, INFO) << "Initial timestamp " << ts_initial << std::endl;
+	return true;
+}
+
+bool LMSDevice::setRxAntenna(const std::string & ant, size_t chan)
+{
+	int idx;
+
+	if (chan >= rx_paths.size()) {
+		LOGC(DDEV, ERROR) << "Requested non-existent channel " << chan;
+		return false;
+	}
+
+	idx = get_ant_idx(ant, LMS_CH_RX, chan);
+	if (idx < 0) {
+		std::ostringstream os;
+		LOGCHAN(chan, DDEV, ERROR) << "Invalid Rx Antenna: " << ant;
+		log_ant_list(LMS_CH_RX, chan, os);
+		LOGCHAN(chan, DDEV, NOTICE) << "Available Rx Antennas: " << os;
+		return false;
+	}
+
+	if (LMS_SetAntenna(m_lms_dev, LMS_CH_RX, chan, idx) < 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Unable to set Rx Antenna";
+	}
+
+	return true;
+}
+
+std::string LMSDevice::getRxAntenna(size_t chan)
+{
+	lms_name_t name_list[MAX_ANTENNA_LIST_SIZE]; /* large enough list for antenna names. */
+	int idx;
+
+	if (chan >= rx_paths.size()) {
+		LOGC(DDEV, ERROR) << "Requested non-existent channel " << chan;
+		return "";
+	}
+
+	idx = LMS_GetAntenna(m_lms_dev, LMS_CH_RX, chan);
+	if (idx < 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Error getting Rx Antenna";
+		return "";
+	}
+
+	if (LMS_GetAntennaList(m_lms_dev, LMS_CH_RX, chan, name_list) < idx) {
+		LOGCHAN(chan, DDEV, ERROR) << "Error getting Rx Antenna List";
+		return "";
+	}
+
+	return name_list[idx];
+}
+
+bool LMSDevice::setTxAntenna(const std::string & ant, size_t chan)
+{
+	int idx;
+
+	if (chan >= tx_paths.size()) {
+		LOGC(DDEV, ERROR) << "Requested non-existent channel " << chan;
+		return false;
+	}
+
+	idx = get_ant_idx(ant, LMS_CH_TX, chan);
+	if (idx < 0) {
+		std::ostringstream os;
+		LOGCHAN(chan, DDEV, ERROR) << "Invalid Tx Antenna: " << ant;
+		log_ant_list(LMS_CH_TX, chan, os);
+		LOGCHAN(chan, DDEV, NOTICE) << "Available Tx Antennas: " << os;
+		return false;
+	}
+
+	if (LMS_SetAntenna(m_lms_dev, LMS_CH_TX, chan, idx) < 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Unable to set Rx Antenna";
+	}
+
+	return true;
+}
+
+std::string LMSDevice::getTxAntenna(size_t chan)
+{
+	lms_name_t name_list[MAX_ANTENNA_LIST_SIZE]; /* large enough list for antenna names. */
+	int idx;
+
+	if (chan >= tx_paths.size()) {
+		LOGC(DDEV, ERROR) << "Requested non-existent channel " << chan;
+		return "";
+	}
+
+	idx = LMS_GetAntenna(m_lms_dev, LMS_CH_TX, chan);
+	if (idx < 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Error getting Tx Antenna";
+		return "";
+	}
+
+	if (LMS_GetAntennaList(m_lms_dev, LMS_CH_TX, chan, name_list) < idx) {
+		LOGCHAN(chan, DDEV, ERROR) << "Error getting Tx Antenna List";
+		return "";
+	}
+
+	return name_list[idx];
+}
+
+bool LMSDevice::requiresRadioAlign()
+{
+	return false;
+}
+
+GSM::Time LMSDevice::minLatency() {
+	/* UNUSED on limesdr (only used on usrp1/2) */
+	return GSM::Time(0,0);
+}
+/*!
+ * Issue tracking description of several events: https://github.com/myriadrf/LimeSuite/issues/265
+ */
+void LMSDevice::update_stream_stats_rx(size_t chan, bool *overrun)
+{
+	lms_stream_status_t status;
+	bool changed = false;
+
+	if (LMS_GetStreamStatus(&m_lms_stream_rx[chan], &status) != 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Rx LMS_GetStreamStatus failed";
+		return;
+	}
+
+	/* FIFO overrun is counted when Rx FIFO is full but new data comes from
+	   the board and oldest samples in FIFO are overwritte. Value count
+	   since the last call to LMS_GetStreamStatus(stream). */
+	if (status.overrun) {
+		changed = true;
+		*overrun = true;
+		LOGCHAN(chan, DDEV, ERROR) << "Rx Overrun! ("
+					   << m_ctr[chan].rx_overruns << " -> "
+					   << status.overrun << ")";
+	}
+	m_ctr[chan].rx_overruns += status.overrun;
+
+	/* Dropped packets in Rx are counted when gaps in Rx timestamps are
+	   detected (likely because buffer overflow in hardware). Value count
+	   since the last call to LMS_GetStreamStatus(stream). */
+	if (status.droppedPackets) {
+		changed = true;
+		LOGCHAN(chan, DDEV, ERROR) << "Rx Dropped packets by HW! ("
+					   << m_ctr[chan].rx_dropped_samples << " -> "
+					   << m_ctr[chan].rx_dropped_samples +
+					      status.droppedPackets
+					   << ")";
+		m_ctr[chan].rx_dropped_events++;
+	}
+	m_ctr[chan].rx_dropped_samples += status.droppedPackets;
+
+	if (changed)
+		osmo_signal_dispatch(SS_DEVICE, S_DEVICE_COUNTER_CHANGE, &m_ctr[chan]);
+
+}
+
+// NOTE: Assumes sequential reads
+int LMSDevice::readSamples(std::vector < short *>&bufs, int len, bool * overrun,
+			   TIMESTAMP timestamp, bool * underrun, unsigned *RSSI)
+{
+	int rc, num_smpls, expect_smpls;
+	ssize_t avail_smpls;
+	TIMESTAMP expect_timestamp;
+	unsigned int i;
+	lms_stream_meta_t rx_metadata = {};
+	rx_metadata.flushPartialPacket = false;
+	rx_metadata.waitForTimestamp = false;
+	rx_metadata.timestamp = 0;
+
+	if (bufs.size() != chans) {
+		LOGC(DDEV, ERROR) << "Invalid channel combination " << bufs.size();
+		return -1;
+	}
+
+	*overrun = false;
+	*underrun = false;
+
+	/* Check that timestamp is valid */
+	rc = rx_buffers[0]->avail_smpls(timestamp);
+	if (rc < 0) {
+		LOGC(DDEV, ERROR) << rx_buffers[0]->str_code(rc);
+		LOGC(DDEV, ERROR) << rx_buffers[0]->str_status(timestamp);
+		return 0;
+	}
+
+	for (i = 0; i<chans; i++) {
+		/* Receive samples from HW until we have enough */
+		while ((avail_smpls = rx_buffers[i]->avail_smpls(timestamp)) < len) {
+			thread_enable_cancel(false);
+			num_smpls = LMS_RecvStream(&m_lms_stream_rx[i], bufs[i], len - avail_smpls, &rx_metadata, 100);
+			update_stream_stats_rx(i, overrun);
+			thread_enable_cancel(true);
+			if (num_smpls <= 0) {
+				LOGCHAN(i, DDEV, ERROR) << "Device receive timed out (" << rc << " vs exp " << len << ").";
+				return -1;
+			}
+
+			LOGCHAN(i, DDEV, DEBUG) "Received timestamp = " << (TIMESTAMP)rx_metadata.timestamp << " (" << num_smpls << ")";
+
+			expect_smpls = len - avail_smpls;
+			if (expect_smpls != num_smpls)
+				LOGCHAN(i, DDEV, NOTICE) << "Unexpected recv buffer len: expect "
+							 << expect_smpls << " got " << num_smpls
+							 << ", diff=" << expect_smpls - num_smpls;
+
+			expect_timestamp = timestamp + avail_smpls;
+			if (expect_timestamp != (TIMESTAMP)rx_metadata.timestamp)
+				LOGCHAN(i, DDEV, ERROR) << "Unexpected recv buffer timestamp: expect "
+							<< expect_timestamp << " got " << (TIMESTAMP)rx_metadata.timestamp
+							<< ", diff=" << rx_metadata.timestamp - expect_timestamp;
+
+			rc = rx_buffers[i]->write(bufs[i], num_smpls, (TIMESTAMP)rx_metadata.timestamp);
+			if (rc < 0) {
+				LOGCHAN(i, DDEV, ERROR) << rx_buffers[i]->str_code(rc);
+				LOGCHAN(i, DDEV, ERROR) << rx_buffers[i]->str_status(timestamp);
+				if (rc != smpl_buf::ERROR_OVERFLOW)
+					return 0;
+			}
+		}
+	}
+
+	/* We have enough samples */
+	for (size_t i = 0; i < rx_buffers.size(); i++) {
+		rc = rx_buffers[i]->read(bufs[i], len, timestamp);
+		if ((rc < 0) || (rc != len)) {
+			LOGC(DDEV, ERROR) << rx_buffers[i]->str_code(rc);
+			LOGC(DDEV, ERROR) << rx_buffers[i]->str_status(timestamp);
+			return 0;
+		}
+	}
+
+	return len;
+}
+
+void LMSDevice::update_stream_stats_tx(size_t chan, bool *underrun)
+{
+	lms_stream_status_t status;
+	bool changed = false;
+
+	if (LMS_GetStreamStatus(&m_lms_stream_tx[chan], &status) != 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Tx LMS_GetStreamStatus failed";
+		return;
+	}
+
+	/* FIFO underrun is counted when Tx is running but FIFO is empty for
+	   >100 ms (500ms in older versions). Value count since the last call to
+	   LMS_GetStreamStatus(stream). */
+	if (status.underrun) {
+		changed = true;
+		*underrun = true;
+		LOGCHAN(chan, DDEV, ERROR) << "Tx Underrun! ("
+					   << m_ctr[chan].tx_underruns << " -> "
+					   << status.underrun << ")";
+	}
+	m_ctr[chan].tx_underruns += status.underrun;
+
+	/* Dropped packets in Tx are counted only when timestamps are enabled
+	   and SDR drops packet because of late timestamp. Value count since the
+	   last call to LMS_GetStreamStatus(stream). */
+	if (status.droppedPackets) {
+		changed = true;
+		LOGCHAN(chan, DDEV, ERROR) << "Tx Dropped packets by HW! ("
+					   << m_ctr[chan].tx_dropped_samples << " -> "
+					   << m_ctr[chan].tx_dropped_samples +
+					      status.droppedPackets
+					   << ")";
+		m_ctr[chan].tx_dropped_events++;
+	}
+	m_ctr[chan].tx_dropped_samples += status.droppedPackets;
+
+	if (changed)
+		osmo_signal_dispatch(SS_DEVICE, S_DEVICE_COUNTER_CHANGE, &m_ctr[chan]);
+
+}
+
+int LMSDevice::writeSamples(std::vector < short *>&bufs, int len,
+			    bool * underrun, unsigned long long timestamp,
+			    bool isControl)
+{
+	int rc = 0;
+	unsigned int i;
+	lms_stream_meta_t tx_metadata = {};
+	tx_metadata.flushPartialPacket = false;
+	tx_metadata.waitForTimestamp = true;
+	tx_metadata.timestamp = timestamp - ts_offset;	/* Shift Tx time by offset */
+
+	if (isControl) {
+		LOGC(DDEV, ERROR) << "Control packets not supported";
+		return 0;
+	}
+
+	if (bufs.size() != chans) {
+		LOGC(DDEV, ERROR) << "Invalid channel combination " << bufs.size();
+		return -1;
+	}
+
+	*underrun = false;
+
+	for (i = 0; i<chans; i++) {
+		LOGCHAN(i, DDEV, DEBUG) << "send buffer of len " << len << " timestamp " << std::hex << tx_metadata.timestamp;
+		thread_enable_cancel(false);
+		rc = LMS_SendStream(&m_lms_stream_tx[i], bufs[i], len, &tx_metadata, 100);
+		update_stream_stats_tx(i, underrun);
+		thread_enable_cancel(true);
+		if (rc != len) {
+			LOGCHAN(i, DDEV, ERROR) << "LMS: Device Tx timed out (" << rc << " vs exp " << len << ").";
+			return -1;
+		}
+	}
+
+	return rc;
+}
+
+bool LMSDevice::updateAlignment(TIMESTAMP timestamp)
+{
+	return true;
+}
+
+bool LMSDevice::setTxFreq(double wFreq, size_t chan)
+{
+	LOGCHAN(chan, DDEV, NOTICE) << "Setting Tx Freq to " << wFreq << " Hz";
+
+	if (LMS_SetLOFrequency(m_lms_dev, LMS_CH_TX, chan, wFreq) < 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Error setting Tx Freq to " << wFreq << " Hz";
+		return false;
+	}
+
+	return true;
+}
+
+bool LMSDevice::setRxFreq(double wFreq, size_t chan)
+{
+	LOGCHAN(chan, DDEV, NOTICE) << "Setting Rx Freq to " << wFreq << " Hz";
+
+	if (LMS_SetLOFrequency(m_lms_dev, LMS_CH_RX, chan, wFreq) < 0) {
+		LOGCHAN(chan, DDEV, ERROR) << "Error setting Rx Freq to " << wFreq << " Hz";
+		return false;
+	}
+
+	return true;
+}
+
+RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
+			       InterfaceType iface, size_t chans, double lo_offset,
+			       const std::vector < std::string > &tx_paths,
+			       const std::vector < std::string > &rx_paths)
+{
+	if (tx_sps != rx_sps) {
+		LOGC(DDEV, ERROR) << "LMS Requires tx_sps == rx_sps";
+		return NULL;
+	}
+	if (lo_offset != 0.0) {
+		LOGC(DDEV, ERROR) << "LMS doesn't support lo_offset";
+		return NULL;
+	}
+	return new LMSDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
+}

Transceiver52M/device/lms/LMSDevice.h

@@ -0,0 +1,206 @@
+/*
+* Copyright 2018 sysmocom - s.f.m.c. GmbH
+*
+* SPDX-License-Identifier: AGPL-3.0+
+*
+* This software is distributed under multiple licenses; see the COPYING file in
+* the main directory for licensing information for this specific distribution.
+*
+* This use of this software may be subject to additional restrictions.
+* See the LEGAL file in the main directory for details.
+
+    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.
+
+*/
+
+#ifndef _LMS_DEVICE_H_
+#define _LMS_DEVICE_H_
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "radioDevice.h"
+#include "smpl_buf.h"
+
+#include <sys/time.h>
+#include <math.h>
+#include <limits.h>
+#include <string>
+#include <iostream>
+#include <lime/LimeSuite.h>
+
+/* Definition of LIMESDR_TX_AMPL limits maximum amplitude of I and Q
+ * channels separately. Hence LIMESDR_TX_AMPL value must be 1/sqrt(2) =
+ * 0.7071.... to get an amplitude of 1 of the complex signal:
+ * 	A^2 = I^2 + Q^2
+ * 	A^2 = (1/sqrt(2))^2 + (1/sqrt(2))^2
+ * 	A^2 = 1/2 + 1/2
+ * 	A^2 = 1 */
+#define LIMESDR_TX_AMPL  0.707
+
+/** A class to handle a LimeSuite supported device */
+class LMSDevice:public RadioDevice {
+
+private:
+	lms_device_t *m_lms_dev;
+	std::vector<lms_stream_t> m_lms_stream_rx;
+	std::vector<lms_stream_t> m_lms_stream_tx;
+
+	std::vector<smpl_buf *> rx_buffers;
+
+	double actualSampleRate;	///< the actual USRP sampling rate
+
+	bool started;		///< flag indicates LMS has started
+	bool skipRx;		///< set if LMS is transmit-only.
+
+	TIMESTAMP ts_initial, ts_offset;
+
+	std::vector<double> tx_gains, rx_gains;
+	double maxTxGainClamp;
+
+	bool do_calib(size_t chan);
+	bool do_filters(size_t chan);
+	void log_ant_list(bool dir_tx, size_t chan, std::ostringstream& os);
+	int get_ant_idx(const std::string & name, bool dir_tx, size_t chan);
+	bool flush_recv(size_t num_pkts);
+	void update_stream_stats_rx(size_t chan, bool *overrun);
+	void update_stream_stats_tx(size_t chan, bool *underrun);
+
+public:
+
+	/** Object constructor */
+	LMSDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chans, double lo_offset,
+		  const std::vector<std::string>& tx_paths,
+		  const std::vector<std::string>& rx_paths);
+	~LMSDevice();
+
+	/** Instantiate the LMS */
+	int open(const std::string &args, int ref, bool swap_channels);
+
+	/** Start the LMS */
+	bool start();
+
+	/** Stop the LMS */
+	bool stop();
+
+	enum TxWindowType getWindowType() {
+		return TX_WINDOW_LMS1;
+	}
+
+	/**
+	Read samples from the LMS.
+	@param buf preallocated buf to contain read result
+	@param len number of samples desired
+	@param overrun Set if read buffer has been overrun, e.g. data not being read fast enough
+	@param timestamp The timestamp of the first samples to be read
+	@param underrun Set if LMS does not have data to transmit, e.g. data not being sent fast enough
+	@param RSSI The received signal strength of the read result
+	@return The number of samples actually read
+	*/
+	int readSamples(std::vector < short *>&buf, int len, bool * overrun,
+			TIMESTAMP timestamp = 0xffffffff, bool * underrun =
+			NULL, unsigned *RSSI = NULL);
+	/**
+	Write samples to the LMS.
+	@param buf Contains the data to be written.
+	@param len number of samples to write.
+	@param underrun Set if LMS does not have data to transmit, e.g. data not being sent fast enough
+	@param timestamp The timestamp of the first sample of the data buffer.
+	@param isControl Set if data is a control packet, e.g. a ping command
+	@return The number of samples actually written
+	*/
+	int writeSamples(std::vector < short *>&bufs, int len, bool * underrun,
+			 TIMESTAMP timestamp = 0xffffffff, bool isControl =
+			 false);
+
+	/** Update the alignment between the read and write timestamps */
+	bool updateAlignment(TIMESTAMP timestamp);
+
+	/** Set the transmitter frequency */
+	bool setTxFreq(double wFreq, size_t chan = 0);
+
+	/** Set the receiver frequency */
+	bool setRxFreq(double wFreq, size_t chan = 0);
+
+	/** Returns the starting write Timestamp*/
+	TIMESTAMP initialWriteTimestamp(void) {
+		return ts_initial;
+	}
+
+	/** Returns the starting read Timestamp*/
+	TIMESTAMP initialReadTimestamp(void) {
+		return ts_initial;
+	}
+
+	/** returns the full-scale transmit amplitude **/
+	double fullScaleInputValue() {
+		return(double) SHRT_MAX * LIMESDR_TX_AMPL;
+	}
+
+	/** returns the full-scale receive amplitude **/
+	double fullScaleOutputValue() {
+		return (double) SHRT_MAX;
+	}
+
+	/** sets the receive chan gain, returns the gain setting **/
+	double setRxGain(double dB, size_t chan = 0);
+
+	/** get the current receive gain */
+	double getRxGain(size_t chan = 0) {
+		return rx_gains[chan];
+	}
+
+	/** return maximum Rx Gain **/
+	double maxRxGain(void);
+
+	/** return minimum Rx Gain **/
+	double minRxGain(void);
+
+	/** sets the transmit chan gain, returns the gain setting **/
+	double setTxGain(double dB, size_t chan = 0);
+
+	/** get transmit gain */
+	double getTxGain(size_t chan = 0) {
+		return tx_gains[chan];
+	}
+
+	/** return maximum Tx Gain **/
+	double maxTxGain(void);
+
+	/** return minimum Rx Gain **/
+	double minTxGain(void);
+
+	/** sets the RX path to use, returns true if successful and false otherwise */
+	bool setRxAntenna(const std::string & ant, size_t chan = 0);
+
+	/* return the used RX path */
+	std::string getRxAntenna(size_t chan = 0);
+
+	/** sets the RX path to use, returns true if successful and false otherwise */
+	bool setTxAntenna(const std::string & ant, size_t chan = 0);
+
+	/* return the used RX path */
+	std::string getTxAntenna(size_t chan = 0);
+
+	/** return whether user drives synchronization of Tx/Rx of USRP */
+        bool requiresRadioAlign();
+
+        /** return whether user drives synchronization of Tx/Rx of USRP */
+        virtual GSM::Time minLatency();
+
+	/** Return internal status values */
+	inline double getTxFreq(size_t chan = 0) {
+		return 0;
+	}
+	inline double getRxFreq(size_t chan = 0) {
+		return 0;
+	}
+	inline double getSampleRate() {
+		return actualSampleRate;
+	}
+};
+
+#endif // _LMS_DEVICE_H_

Transceiver52M/device/lms/Makefile.am

@@ -0,0 +1,11 @@
+include $(top_srcdir)/Makefile.common
+
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LMS_CFLAGS)
+
+noinst_HEADERS = LMSDevice.h
+
+noinst_LTLIBRARIES = libdevice.la
+
+libdevice_la_SOURCES = LMSDevice.cpp
+libdevice_la_LIBADD = $(top_builddir)/Transceiver52M/device/common/libdevice_common.la

Transceiver52M/device/uhd/Makefile.am

@@ -0,0 +1,11 @@
+include $(top_srcdir)/Makefile.common
+
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(UHD_CFLAGS)
+
+noinst_HEADERS = UHDDevice.h
+
+noinst_LTLIBRARIES = libdevice.la
+
+libdevice_la_SOURCES = UHDDevice.cpp
+libdevice_la_LIBADD = $(top_builddir)/Transceiver52M/device/common/libdevice_common.la

Transceiver52M/device/uhd/UHDDevice.h

@@ -0,0 +1,175 @@
+/*
+ * Device support for Ettus Research UHD driver
+ *
+ * Copyright 2010,2011 Free Software Foundation, Inc.
+ * Copyright (C) 2015 Ettus Research LLC
+ * Copyright 2019 sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ *
+ * Author: Tom Tsou <tom.tsou@ettus.com>
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+#pragma once
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "radioDevice.h"
+#include "smpl_buf.h"
+
+#include <uhd/version.hpp>
+#include <uhd/property_tree.hpp>
+#include <uhd/usrp/multi_usrp.hpp>
+
+
+enum uhd_dev_type {
+	USRP1,
+	USRP2,
+	B100,
+	B200,
+	B210,
+	B2XX_MCBTS,
+	E1XX,
+	E3XX,
+	X3XX,
+	UMTRX,
+	LIMESDR,
+};
+
+/*
+    uhd_device - UHD implementation of the Device interface. Timestamped samples
+                are sent to and received from the device. An intermediate buffer
+                on the receive side collects and aligns packets of samples.
+                Events and errors such as underruns are reported asynchronously
+                by the device and received in a separate thread.
+*/
+class uhd_device : public RadioDevice {
+public:
+	uhd_device(size_t tx_sps, size_t rx_sps, InterfaceType type,
+		   size_t chans, double offset,
+		   const std::vector<std::string>& tx_paths,
+		   const std::vector<std::string>& rx_paths);
+	~uhd_device();
+
+	int open(const std::string &args, int ref, bool swap_channels);
+	bool start();
+	bool stop();
+	bool restart();
+	enum TxWindowType getWindowType() { return tx_window; }
+
+	int readSamples(std::vector<short *> &bufs, int len, bool *overrun,
+			TIMESTAMP timestamp, bool *underrun, unsigned *RSSI);
+
+	int writeSamples(std::vector<short *> &bufs, int len, bool *underrun,
+			 TIMESTAMP timestamp, bool isControl);
+
+	bool updateAlignment(TIMESTAMP timestamp);
+
+	bool setTxFreq(double wFreq, size_t chan);
+	bool setRxFreq(double wFreq, size_t chan);
+
+	TIMESTAMP initialWriteTimestamp();
+	TIMESTAMP initialReadTimestamp();
+
+	double fullScaleInputValue();
+	double fullScaleOutputValue();
+
+	double setRxGain(double db, size_t chan);
+	double getRxGain(size_t chan);
+	double maxRxGain(void) { return rx_gain_max; }
+	double minRxGain(void) { return rx_gain_min; }
+
+	double setTxGain(double db, size_t chan);
+	double getTxGain(size_t chan = 0);
+	double maxTxGain(void) { return tx_gain_max; }
+	double minTxGain(void) { return tx_gain_min; }
+
+	double getTxFreq(size_t chan);
+	double getRxFreq(size_t chan);
+	double getRxFreq();
+
+	bool setRxAntenna(const std::string &ant, size_t chan);
+	std::string getRxAntenna(size_t chan);
+	bool setTxAntenna(const std::string &ant, size_t chan);
+	std::string getTxAntenna(size_t chan);
+
+	bool requiresRadioAlign();
+
+	GSM::Time minLatency();
+
+	inline double getSampleRate() { return tx_rate; }
+
+	/** Receive and process asynchronous message
+	    @return true if message received or false on timeout or error
+	*/
+	bool recv_async_msg();
+
+	enum err_code {
+		ERROR_TIMING = -1,
+		ERROR_TIMEOUT = -2,
+		ERROR_UNRECOVERABLE = -3,
+		ERROR_UNHANDLED = -4,
+	};
+
+private:
+	uhd::usrp::multi_usrp::sptr usrp_dev;
+	uhd::tx_streamer::sptr tx_stream;
+	uhd::rx_streamer::sptr rx_stream;
+	enum TxWindowType tx_window;
+	enum uhd_dev_type dev_type;
+
+	double tx_rate, rx_rate;
+
+	double tx_gain_min, tx_gain_max;
+	double rx_gain_min, rx_gain_max;
+
+	std::vector<double> tx_gains, rx_gains;
+	std::vector<double> tx_freqs, rx_freqs;
+	size_t tx_spp, rx_spp;
+
+	bool started;
+	bool aligned;
+
+	size_t drop_cnt;
+	uhd::time_spec_t prev_ts;
+
+	TIMESTAMP ts_initial, ts_offset;
+	std::vector<smpl_buf *> rx_buffers;
+	/* Sample buffers used to receive samples from UHD: */
+	std::vector<std::vector<short> > pkt_bufs;
+	/* Used to call UHD API: Buffer pointer of each elem in pkt_ptrs will
+	   point to corresponding buffer of vector pkt_bufs. */
+	std::vector<short *> pkt_ptrs;
+
+	void init_gains();
+	void set_channels(bool swap);
+	void set_rates();
+	bool parse_dev_type();
+	bool flush_recv(size_t num_pkts);
+	int check_rx_md_err(uhd::rx_metadata_t &md, ssize_t num_smpls);
+
+	std::string str_code(uhd::rx_metadata_t metadata);
+	std::string str_code(uhd::async_metadata_t metadata);
+
+	uhd::tune_request_t select_freq(double wFreq, size_t chan, bool tx);
+	bool set_freq(double freq, size_t chan, bool tx);
+
+	Thread *async_event_thrd;
+	Mutex tune_lock;
+};

Transceiver52M/device/usrp1/Makefile.am

@@ -0,0 +1,16 @@
+include $(top_srcdir)/Makefile.common
+
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(USRP_CFLAGS)
+
+rev2dir = $(datadir)/usrp/rev2
+rev4dir = $(datadir)/usrp/rev4
+
+dist_rev2_DATA = std_inband.rbf
+dist_rev4_DATA = std_inband.rbf
+
+noinst_HEADERS = USRPDevice.h
+
+noinst_LTLIBRARIES = libdevice.la
+
+libdevice_la_SOURCES = USRPDevice.cpp

Transceiver52M/device/usrp1/USRPDevice.cpp

@@ -1,6 +1,8 @@
 /*
 * Copyright 2008, 2009 Free Software Foundation, Inc.
 *
+* SPDX-License-Identifier: AGPL-3.0+
+*
 * This software is distributed under the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
 *
@@ -58,14 +60,18 @@ const dboardConfigType dboardConfig = TXA_RXB;
 
 const double USRPDevice::masterClockRate = 52.0e6;
 
-USRPDevice::USRPDevice(size_t sps)
+USRPDevice::USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface,
+		       size_t chans, double lo_offset,
+		       const std::vector<std::string>& tx_paths,
+		       const std::vector<std::string>& rx_paths):
+		RadioDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths)
 {
-  LOG(INFO) << "creating USRP device...";
+  LOGC(DDEV, INFO) << "creating USRP device...";
 
-  this->sps = sps;
-  decimRate = (unsigned int) round(masterClockRate/((GSMRATE) * (double) sps));
+  decimRate = (unsigned int) round(masterClockRate/((GSMRATE) * (double) tx_sps));
   actualSampleRate = masterClockRate/decimRate;
   rxGain = 0;
+  txGain = 0;
 
   /*
    * Undetermined delay b/w ping response timestamp and true
@@ -73,9 +79,9 @@ USRPDevice::USRPDevice(size_t sps)
    * split sample rate Tx/Rx - 4/1 sps we need to need to
    * compensate for advance rather than delay.
    */
-  if (sps == 1)
+  if (tx_sps == 1)
     pingOffset = 272;
-  else if (sps == 4)
+  else if (tx_sps == 4)
     pingOffset = 269 - 7500;
   else
     pingOffset = 0;
@@ -92,34 +98,32 @@ int USRPDevice::open(const std::string &, int, bool)
 {
   writeLock.unlock();
 
-  LOG(INFO) << "opening USRP device..";
+  LOGC(DDEV, INFO) << "opening USRP device..";
 #ifndef SWLOOPBACK
   string rbf = "std_inband.rbf";
   //string rbf = "inband_1rxhb_1tx.rbf";
   m_uRx.reset();
-  if (!skipRx) {
   try {
     m_uRx = usrp_standard_rx_sptr(usrp_standard_rx::make(
-                                        0, decimRate * sps, 1, -1,
+                                        0, decimRate * tx_sps, 1, -1,
                                         usrp_standard_rx::FPGA_MODE_NORMAL,
                                         1024, 16 * 8, rbf));
     m_uRx->set_fpga_master_clock_freq(masterClockRate);
   }
 
   catch(...) {
-    LOG(ALERT) << "make failed on Rx";
+    LOGC(DDEV, ALERT) << "make failed on Rx";
     m_uRx.reset();
     return -1;
   }
 
   if (m_uRx->fpga_master_clock_freq() != masterClockRate)
   {
-    LOG(ALERT) << "WRONG FPGA clock freq = " << m_uRx->fpga_master_clock_freq()
+    LOGC(DDEV, ALERT) << "WRONG FPGA clock freq = " << m_uRx->fpga_master_clock_freq()
                << ", desired clock freq = " << masterClockRate;
     m_uRx.reset();
     return -1;
   }
-  }
 
   try {
     m_uTx = usrp_standard_tx_sptr(usrp_standard_tx::make(
@@ -129,20 +133,20 @@ int USRPDevice::open(const std::string &, int, bool)
   }
 
   catch(...) {
-    LOG(ALERT) << "make failed on Tx";
+    LOGC(DDEV, ALERT) << "make failed on Tx";
     m_uTx.reset();
     return -1;
   }
 
   if (m_uTx->fpga_master_clock_freq() != masterClockRate)
   {
-    LOG(ALERT) << "WRONG FPGA clock freq = " << m_uTx->fpga_master_clock_freq()
+    LOGC(DDEV, ALERT) << "WRONG FPGA clock freq = " << m_uTx->fpga_master_clock_freq()
                << ", desired clock freq = " << masterClockRate;
     m_uTx.reset();
     return -1;
   }
 
-  if (!skipRx) m_uRx->stop();
+  m_uRx->stop();
   m_uTx->stop();
 
 #endif
@@ -172,8 +176,6 @@ int USRPDevice::open(const std::string &, int, bool)
   m_dbTx = m_uTx->selected_subdev(txSubdevSpec);
   m_dbRx = m_uRx->selected_subdev(rxSubdevSpec);
 
-  samplesRead = 0;
-  samplesWritten = 0;
   started = false;
 
   return NORMAL;
@@ -183,12 +185,12 @@ int USRPDevice::open(const std::string &, int, bool)
 
 bool USRPDevice::start()
 {
-  LOG(INFO) << "starting USRP...";
+  LOGC(DDEV, INFO) << "starting USRP...";
 #ifndef SWLOOPBACK
-  if (!m_uRx && !skipRx) return false;
+  if (!m_uRx) return false;
   if (!m_uTx) return false;
 
-  if (!skipRx) m_uRx->stop();
+  m_uRx->stop();
   m_uTx->stop();
 
   writeLock.lock();
@@ -218,10 +220,7 @@ bool USRPDevice::start()
   isAligned = false;
 
 
-  if (!skipRx)
   started = (m_uRx->start() && m_uTx->start());
-  else
-  started = m_uTx->start();
   return started;
 #else
   gettimeofday(&lastReadTime,NULL);
@@ -267,7 +266,7 @@ double USRPDevice::minRxGain()
 double USRPDevice::setTxGain(double dB, size_t chan)
 {
   if (chan) {
-    LOG(ALERT) << "Invalid channel " << chan;
+    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
     return 0.0;
   }
 
@@ -277,21 +276,22 @@ double USRPDevice::setTxGain(double dB, size_t chan)
   if (dB < minTxGain())
     dB = minTxGain();
 
-  LOG(NOTICE) << "Setting TX gain to " << dB << " dB.";
+  LOGC(DDEV, NOTICE) << "Setting TX gain to " << dB << " dB.";
 
   if (!m_dbTx->set_gain(dB))
-    LOG(ERR) << "Error setting TX gain";
-
+    LOGC(DDEV, ERR) << "Error setting TX gain";
+  else
+    txGain = dB;
   writeLock.unlock();
 
-  return dB;
+  return txGain;
 }
 
 
 double USRPDevice::setRxGain(double dB, size_t chan)
 {
   if (chan) {
-    LOG(ALERT) << "Invalid channel " << chan;
+    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
     return 0.0;
   }
 
@@ -303,56 +303,65 @@ double USRPDevice::setRxGain(double dB, size_t chan)
   if (dB < minRxGain())
     dB = minRxGain();
 
-  LOG(NOTICE) << "Setting RX gain to " << dB << " dB.";
+  LOGC(DDEV, NOTICE) << "Setting RX gain to " << dB << " dB.";
 
   if (!m_dbRx->set_gain(dB))
-    LOG(ERR) << "Error setting RX gain";
-
+    LOGC(DDEV, ERR) << "Error setting RX gain";
+  else
+    rxGain = dB;
   writeLock.unlock();
 
-  return dB;
+  return rxGain;
 }
 
 bool USRPDevice::setRxAntenna(const std::string &ant, size_t chan)
 {
 	if (chan >= rx_paths.size()) {
-		LOG(ALERT) << "Requested non-existent channel " << chan;
+		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
-	LOG(ALERT) << "Not implemented";
+	LOGC(DDEV, ALERT) << "Not implemented";
 	return true;
 }
 
 std::string USRPDevice::getRxAntenna(size_t chan)
 {
 	if (chan >= rx_paths.size()) {
-		LOG(ALERT) << "Requested non-existent channel " << chan;
+		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return "";
 	}
-	LOG(ALERT) << "Not implemented";
+	LOGC(DDEV, ALERT) << "Not implemented";
 	return "";
 }
 
 bool USRPDevice::setTxAntenna(const std::string &ant, size_t chan)
 {
 	if (chan >= tx_paths.size()) {
-		LOG(ALERT) << "Requested non-existent channel " << chan;
+		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
-	LOG(ALERT) << "Not implemented";
+	LOGC(DDEV, ALERT) << "Not implemented";
 	return true;
 }
 
 std::string USRPDevice::getTxAntenna(size_t chan)
 {
 	if (chan >= tx_paths.size()) {
-		LOG(ALERT) << "Requested non-existent channel " << chan;
+		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
 		return "";
 	}
-	LOG(ALERT) << "Not implemented";
+	LOGC(DDEV, ALERT) << "Not implemented";
 	return "";
 }
 
+bool USRPDevice::requiresRadioAlign()
+{
+	return true;
+}
+
+GSM::Time USRPDevice::minLatency() {
+	return GSM::Time(1,1);
+}
 
 // NOTE: Assumes sequential reads
 int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
@@ -371,7 +380,7 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
     return len;
   }
 
-  if (underrun) *underrun = false;
+  *underrun = false;
 
   uint32_t readBuf[2000];
 
@@ -387,18 +396,18 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 
     // read USRP packets, parse and save A/D data as needed
     readLen = m_uRx->read((void *)readBuf,readLen,overrun);
-    for(int pktNum = 0; pktNum < (readLen/512); pktNum++) {
+    for (int pktNum = 0; pktNum < (readLen/512); pktNum++) {
       // tmpBuf points to start of a USB packet
       uint32_t* tmpBuf = (uint32_t *) (readBuf+pktNum*512/4);
       TIMESTAMP pktTimestamp = usrp_to_host_u32(tmpBuf[1]);
       uint32_t word0 = usrp_to_host_u32(tmpBuf[0]);
       uint32_t chan = (word0 >> 16) & 0x1f;
       unsigned payloadSz = word0 & 0x1ff;
-      LOG(DEBUG) << "first two bytes: " << hex << word0 << " " << dec << pktTimestamp;
+      LOGC(DDEV, DEBUG) << "first two bytes: " << hex << word0 << " " << dec << pktTimestamp;
 
       bool incrementHi32 = ((lastPktTimestamp & 0x0ffffffffll) > pktTimestamp);
       if (incrementHi32 && (timeStart!=0)) {
-           LOG(DEBUG) << "high 32 increment!!!";
+           LOGC(DDEV, DEBUG) << "high 32 increment!!!";
            hi32Timestamp++;
       }
       pktTimestamp = (((TIMESTAMP) hi32Timestamp) << 32) | pktTimestamp;
@@ -410,19 +419,19 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 	if ((word2 >> 16) == ((0x01 << 8) | 0x02)) {
           timestamp -= timestampOffset;
 	  timestampOffset = pktTimestamp - pingTimestamp + pingOffset;
-	  LOG(DEBUG) << "updating timestamp offset to: " << timestampOffset;
+	  LOGC(DDEV, DEBUG) << "updating timestamp offset to: " << timestampOffset;
           timestamp += timestampOffset;
 	  isAligned = true;
 	}
 	continue;
       }
       if (chan != 0) {
-	LOG(DEBUG) << "chan: " << chan << ", timestamp: " << pktTimestamp << ", sz:" << payloadSz;
+	LOGC(DDEV, DEBUG) << "chan: " << chan << ", timestamp: " << pktTimestamp << ", sz:" << payloadSz;
 	continue;
       }
       if ((word0 >> 28) & 0x04) {
-	if (underrun) *underrun = true;
-	LOG(DEBUG) << "UNDERRUN in TRX->USRP interface";
+	*underrun = true;
+	LOGC(DDEV, DEBUG) << "UNDERRUN in TRX->USRP interface";
       }
       if (RSSI) *RSSI = (word0 >> 21) & 0x3f;
 
@@ -443,7 +452,7 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
       if (pktTimestamp + payloadSz/2/sizeof(short) > timeEnd)
 	timeEnd = pktTimestamp+payloadSz/2/sizeof(short);
 
-      LOG(DEBUG) << "timeStart: " << timeStart << ", timeEnd: " << timeEnd << ", pktTimestamp: " << pktTimestamp;
+      LOGC(DDEV, DEBUG) << "timeStart: " << timeStart << ", timeEnd: " << timeEnd << ", pktTimestamp: " << pktTimestamp;
 
     }
   }
@@ -451,14 +460,14 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
   // copy desired data to buf
   unsigned bufStart = dataStart+(timestamp-timeStart);
   if (bufStart + len < currDataSize/2) {
-    LOG(DEBUG) << "bufStart: " << bufStart;
+    LOGC(DDEV, DEBUG) << "bufStart: " << bufStart;
     memcpy(buf,data+bufStart*2,len*2*sizeof(short));
     memset(data+bufStart*2,0,len*2*sizeof(short));
   }
   else {
-    LOG(DEBUG) << "len: " << len << ", currDataSize/2: " << currDataSize/2 << ", bufStart: " << bufStart;
+    LOGC(DDEV, DEBUG) << "len: " << len << ", currDataSize/2: " << currDataSize/2 << ", bufStart: " << bufStart;
     unsigned firstLength = (currDataSize/2-bufStart);
-    LOG(DEBUG) << "firstLength: " << firstLength;
+    LOGC(DDEV, DEBUG) << "firstLength: " << firstLength;
     memcpy(buf,data+bufStart*2,firstLength*2*sizeof(short));
     memset(data+bufStart*2,0,firstLength*2*sizeof(short));
     memcpy(buf+firstLength*2,data,(len-firstLength)*2*sizeof(short));
@@ -499,7 +508,6 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
     gettimeofday(&lastReadTime,NULL);
     firstRead = true;
   }
-  samplesRead += numSamples;
 
   return numSamples;
 #endif
@@ -549,14 +557,12 @@ int USRPDevice::writeSamples(std::vector<short *> &bufs, int len,
   }
   m_uTx->write((const void*) outPkt,sizeof(uint32_t)*128*numPkts,NULL);
 
-  samplesWritten += len/2/sizeof(short);
   writeLock.unlock();
 
   return len/2/sizeof(short);
 #else
   int retVal = len;
   memcpy(loopbackBuffer+loopbackBufferSize,buf,sizeof(short)*2*len);
-  samplesWritten += retVal;
   loopbackBufferSize += retVal*2;
 
   return retVal;
@@ -588,19 +594,19 @@ bool USRPDevice::setTxFreq(double wFreq, size_t chan)
   usrp_tune_result result;
 
   if (chan) {
-    LOG(ALERT) << "Invalid channel " << chan;
+    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
     return false;
   }
 
   if (m_uTx->tune(txSubdevSpec.side, m_dbTx, wFreq, &result)) {
-    LOG(INFO) << "set TX: " << wFreq << std::endl
+    LOGC(DDEV, INFO) << "set TX: " << wFreq << std::endl
               << "    baseband freq: " << result.baseband_freq << std::endl
               << "    DDC freq:      " << result.dxc_freq << std::endl
               << "    residual freq: " << result.residual_freq;
     return true;
   }
   else {
-    LOG(ALERT) << "set TX: " << wFreq << "failed" << std::endl
+    LOGC(DDEV, ALERT) << "set TX: " << wFreq << " failed" << std::endl
                << "    baseband freq: " << result.baseband_freq << std::endl
                << "    DDC freq:      " << result.dxc_freq << std::endl
                << "    residual freq: " << result.residual_freq;
@@ -613,19 +619,19 @@ bool USRPDevice::setRxFreq(double wFreq, size_t chan)
   usrp_tune_result result;
 
   if (chan) {
-    LOG(ALERT) << "Invalid channel " << chan;
+    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
     return false;
   }
 
   if (m_uRx->tune(0, m_dbRx, wFreq, &result)) {
-    LOG(INFO) << "set RX: " << wFreq << std::endl
+    LOGC(DDEV, INFO) << "set RX: " << wFreq << std::endl
               << "    baseband freq: " << result.baseband_freq << std::endl
               << "    DDC freq:      " << result.dxc_freq << std::endl
               << "    residual freq: " << result.residual_freq;
     return true;
   }
   else {
-    LOG(ALERT) << "set RX: " << wFreq << "failed" << std::endl
+    LOGC(DDEV, ALERT) << "set RX: " << wFreq << " failed" << std::endl
                << "    baseband freq: " << result.baseband_freq << std::endl
                << "    DDC freq:      " << result.dxc_freq << std::endl
                << "    residual freq: " << result.residual_freq;
@@ -640,9 +646,21 @@ bool USRPDevice::setRxFreq(double wFreq) { return true;};
 #endif
 
 RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
-			       InterfaceType iface, size_t chans, double offset,
+			       InterfaceType iface, size_t chans, double lo_offset,
 			       const std::vector<std::string>& tx_paths,
 			       const std::vector<std::string>& rx_paths)
 {
-	return new USRPDevice(tx_sps);
+	if (tx_sps != rx_sps) {
+		LOGC(DDEV, ERROR) << "USRP1 requires tx_sps == rx_sps";
+		return NULL;
+	}
+	if (chans != 1) {
+		LOGC(DDEV, ERROR) << "USRP1 supports only 1 channel";
+		return NULL;
+	}
+	if (lo_offset != 0.0) {
+		LOGC(DDEV, ERROR) << "USRP1 doesn't support lo_offset";
+		return NULL;
+	}
+	return new USRPDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths);
 }

Transceiver52M/device/usrp1/USRPDevice.h

@@ -1,7 +1,10 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
+* SPDX-License-Identifier: AGPL-3.0+
+*
+* This software is distributed under multiple licenses; see the COPYING file in
+* the main directory for licensing information for this specific distribution.
 *
 * This use of this software may be subject to additional restrictions.
 * See the LEGAL file in the main directory for details.
@@ -48,15 +51,10 @@ private:
   usrp_subdev_spec rxSubdevSpec;
   usrp_subdev_spec txSubdevSpec;
 
-  int sps;
   double actualSampleRate;	///< the actual USRP sampling rate
   unsigned int decimRate;	///< the USRP decimation rate
 
-  unsigned long long samplesRead;	///< number of samples read from USRP
-  unsigned long long samplesWritten;	///< number of samples sent to USRP
-
   bool started;			///< flag indicates USRP has started
-  bool skipRx;			///< set if USRP is transmit-only.
 
   static const unsigned int currDataSize_log2 = 21;
   static const unsigned long currDataSize = (1 << currDataSize_log2);
@@ -82,6 +80,7 @@ private:
   unsigned long lastPktTimestamp;
 
   double rxGain;
+  double txGain;
 
 #ifdef SWLOOPBACK
   short loopbackBuffer[1000000];
@@ -96,7 +95,9 @@ private:
  public:
 
   /** Object constructor */
-  USRPDevice(size_t sps);
+  USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t chans, double lo_offset,
+		const std::vector<std::string>& tx_paths,
+		const std::vector<std::string>& rx_paths);
 
   /** Instantiate the USRP */
   int open(const std::string &, int, bool);
@@ -107,9 +108,6 @@ private:
   /** Stop the USRP */
   bool stop();
 
-  /** Set priority not supported */
-  void setPriority(float prio = 0.5) { }
-
   enum TxWindowType getWindowType() { return TX_WINDOW_USRP1; }
 
   /**
@@ -173,6 +171,9 @@ private:
   /** sets the transmit chan gain, returns the gain setting **/
   double setTxGain(double dB, size_t chan = 0);
 
+  /** get transmit gain */
+  double getTxGain(size_t chan = 0) { return txGain; }
+
   /** return maximum Tx Gain **/
   double maxTxGain(void);
 
@@ -191,14 +192,16 @@ private:
   /* return the used RX path */
   std::string getTxAntenna(size_t chan = 0);
 
+  /** return whether user drives synchronization of Tx/Rx of USRP */
+  bool requiresRadioAlign();
+
+  /** return whether user drives synchronization of Tx/Rx of USRP */
+  virtual GSM::Time minLatency();
+
   /** Return internal status values */
   inline double getTxFreq(size_t chan = 0) { return 0; }
   inline double getRxFreq(size_t chan = 0) { return 0; }
   inline double getSampleRate() { return actualSampleRate; }
-  inline double numberRead() { return samplesRead; }
-  inline double numberWritten() { return samplesWritten; }
-
-  std::vector<std::string> tx_paths, rx_paths;
 };
 
 #endif // _USRP_DEVICE_H_

Transceiver52M/inband-signaling-usb

@@ -1,314 +0,0 @@
-This file specifies the format of USB packets used for in-band data
-transmission and signaling on the USRP.  All packets are 512-byte long,
-and are transfered using USB "bulk" transfers.
-
-IN packets are sent towards the host.
-OUT packets are sent away from the host.
-
-The layout is 32-bits wide.  All data is transmitted in little-endian
-format across the USB.
-
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |O|U|D|S|E|   RSSI    |  Chan   | mbz |  Tag  |   Payload Len   |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |                           Timestamp                           |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |                                                               |
-   +                                                               +
-   |                            Payload                            |
-   .                                                               .
-   .                                                               .
-   .                                                               .
-   |                                                               |
-   +             +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |      ...    |                                                 .
-   +-+-+-+-+-+-+-+                                                 .
-   .                                                               .
-   .                            Padding                            .
-   .                                                               .
-   |                                                               |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   
-
-  mbz   Must be Zero: these bits must be zero in both IN and OUT packets.
-
-  O     Overrun Flag: set in an IN packet if an overrun condition was
-        detected.  Must be zero in OUT packets.  Overrun occurs when
-        the FPGA has data to transmit to the host and there is no
-        buffer space available.  This generally indicates a problem on
-        the host.  Either it is not keeping up, or it has configured
-        the FPGA to transmit data at a higher rate than the transport
-        (USB) can support.
-
-  U     Underrun Flag: set in an IN packet if an underrun condition
-        was detected.  Must be zero in OUT packets.  Underrun occurs
-        when the FPGA runs out of samples, and it's not between
-        bursts.  See the "End of Burst flag" below.
-
-  D     Dropped Packet Flag: Set in an IN packet if the FPGA
-	discarded an OUT packet because its timestamp had already
-	passed.
-
-  S     Start of Burst Flag:  Set in an OUT packet if the data is the
-        first segment of what is logically a continuous burst of data.
-        Must be zero in IN packets.
-
-  E     End of Burst Flag:  Set in an OUT packet if the data is the
-        last segment of what is logically a continuous burst of data.
-        Must be zero in IN packets.  Underruns are not reported
-        when the FPGA runs out of samples between bursts.
-
-
-  RSSI  6-bit Received Strength Signal Indicator:  Must be zero in OUT
-        packets.  In IN packets, indicates RSSI as reported by front end.
-	FIXME The format and interpretation are to be determined.
-
-  Chan  5-bit logical channel number.  Channel number 0x1f is reserved
-        for control information.  See "Control Channel" below.  Other
-        channels are "data channels."  Each data channel is logically
-        independent of the others.  A data channel payload field
-        contains a sequence of homogeneous samples.  The format of the
-        samples is determined by the configuration associated with the
-        given channel.  It is often the case that the payload field
-        contains 32-bit complex samples, each containing 16-bit real
-        and imaginary components.
-
-  Tag   4-bit tag for matching IN packets with OUT packets.
-        [FIXME, write more...]
-
-  Payload Len: 9-bit field that specifies the length of the payload
-        field in bytes.  Must be in the range 0 to 504 inclusive.
-
-  Timestamp: 32-bit timestamp.
-	On IN packets, the timestamp indicates the time at which the
-	first sample of the packet was produced by the A/D converter(s)
-        for that channel.  On OUT packets, the timestamp specifies the
-        time at which the first sample in the packet should go out the
-        D/A converter(s) for that channel.  If a packet reaches the
-	head of the transmit queue, and the current time is later than
-	the timestamp, an error is assumed to have occurred and the
-	packet is discarded.  As a special case, the timestamp
-	0xffffffff is interpreted as "Now".
-
-	The time base is a free running 32-bit counter that is
-	incremented by the A/D sample-clock.
-
-  Payload: Variable length field.  Length is specified by the
-        Payload Len field.
-
-  Padding: This field is 504 - Payload Len bytes long, and its content
-        is unspecified.  This field pads the packet out to a constant
-        512 bytes.
-
-
-
-"Data Channel" payload format:
--------------------------------
-
-If Chan != 0x1f, the packet is a "data packet" and the payload is a
-sequence of homogeneous samples.  The format of the samples is
-determined by the configuration associated with the given channel.  
-It is often the case that the payload field contains 32-bit complex
-samples, each containing 16-bit real and imaginary components.
-
-
-"Control Channel" payload format:
----------------------------------
-
-If Chan == 0x1f, the packet is a "control packet".  The control channel
-payload consists of a sequence of 0 or more sub-packets.
-
-Each sub-packet starts on a 32-bit boundary, and consists of an 8-bit
-Opcode field, an 8-bit Length field, Length bytes of arguments, and 0,
-1, 2 or 3 bytes of padding to align the tail of the sub-packet to
-a 32-bit boundary.
-
-Control channel packets shall be processed at the head of the queue,
-and shall observe the timestamp semantics described above.
-
-
-General sub-packet format:
---------------------------
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-//-+-+-+-+-+-+-+-+
-   |     Opcode    |    Length     |        <length bytes> ...    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-//-+-+-+-+-+-+-+-+
-
-
-Specific sub-packet formats:
-----------------------------
-
-  RID: 6-bit Request-ID. Copied from request sub-packet into corresponding
-       reply sub-packet.  RID allows the host to match requests and replies.
-
-  Reg Number: 10-bit Register Number.
-
-
-
-Ping Fixed Length:
-
-    Opcode:	OP_PING_FIXED
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       2       |    RID    |     Ping Value    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-Ping Fixed Length Reply:
-
-    Opcode:	OP_PING_FIXED_REPLY
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       2       |    RID    |     Ping Value    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-Write Register:
-
-    Opcode:	OP_WRITE_REG
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       6       |    mbz    |     Reg Number    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |                        Register Value                         |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-Write Register Masked:
-
-    Opcode:	OP_WRITE_REG_MASKED
-
-    REG[Num] = (REG[Num] & ~Mask) | (Value & Mask)
-
-    That is, only the register bits that correspond to 1's in the
-    mask are written with the new value.
-
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |      10       |    mbz    |     Reg Number    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |                         Register Value                        |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |                           Mask Value                          |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-Read Register:
-
-    Opcode:	OP_READ_REG
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       2       |    RID    |     Reg Number    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-Read Register Reply:
-
-    Opcode:	OP_READ_REG_REPLY
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       6       |    RID    |     Reg Number    |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |                        Register Value                         |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-I2C Write:
-
-    Opcode:	OP_I2C_WRITE
-    I2C Addr:   7-bit I2C address
-    Data:	The bytes to write to the I2C bus
-    Length:     Length of Data + 2
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |    Length     |       mbz       |   I2C Addr  |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |    Data ...			                           .
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-I2C Read:
-
-    Opcode:	OP_I2C_READ
-    I2C Addr:	7-bit I2C address
-    Nbytes:	Number of bytes to read from I2C bus
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       3       |    RID    | mbz |   I2C Addr  |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Nbytes    |              unspecified padding              |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-I2C Read Reply:
-
-    Opcode:	OP_I2C_READ_REPLY
-    I2C Addr:	7-bit I2C address
-    Data:	Length - 2 bytes of data read from I2C bus.
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |     Length    |    RID    | mbz |   I2C Addr  |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |    Data ...			                           .
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-SPI Write:
-
-    Opcode:	      OP_SPI_WRITE
-    Enables:	      Which SPI enables to assert (mask)
-    Format:	      Specifies format of SPI data and Opt Header Bytes
-    Opt Header Bytes: 2-byte field containing optional Tx bytes; see Format
-    Data:	      The bytes to write to the SPI bus
-    Length:	      Length of Data + 6
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |    Length     |              mbz              |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |    Enables    |    Format     |        Opt Header Bytes       |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |    Data ...			                           .
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-SPI Read:
-
-    Opcode:	      OP_SPI_READ
-    Enables:	      Which SPI enables to assert (mask)
-    Format:	      Specifies format of SPI data and Opt Header Bytes
-    Opt Header Bytes: 2-byte field containing optional Tx bytes; see Format
-    Nbytes:	      Number of bytes to read from SPI bus.
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       7       |    RID    |        mbz        |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |    Enables    |    Format     |        Opt Header Bytes       |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Nbytes    |              unspecified padding              |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-SPI Read Reply:
-
-    Opcode:   OP_SPI_READ_REPLY
-    Data:     Length - 2 bytes of data read from SPI bus.
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |     Length    |    RID    |        mbz        |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |    Data ...			                           .
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-
-
-Delay:
-
-    Opcode:	OP_DELAY
-    Ticks:	16-bit unsigned delay count
-
-    Delay Ticks clock ticks before executing next operation.
-
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-   |     Opcode    |       2       |            Ticks              |
-   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
-

Transceiver52M/osmo-trx.cpp

@@ -1,6 +1,8 @@
 /*
  * Copyright (C) 2013 Thomas Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: LGPL-2.1+
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
@@ -22,147 +24,62 @@
 
 #include "Transceiver.h"
 #include "radioDevice.h"
+#include "Utils.h"
 
 #include <time.h>
 #include <signal.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <getopt.h>
 #include <sched.h>
 #include <vector>
 #include <string>
 #include <sstream>
 #include <iostream>
+#include <sys/signalfd.h>
 
 #include <GSMCommon.h>
 #include <Logger.h>
 
 extern "C" {
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/application.h>
+#include <osmocom/core/msgb.h>
+#include <osmocom/core/stats.h>
+#include <osmocom/vty/logging.h>
+#include <osmocom/vty/ports.h>
+#include <osmocom/vty/misc.h>
+#include <osmocom/vty/telnet_interface.h>
+#include <osmocom/ctrl/control_vty.h>
+#include <osmocom/ctrl/ports.h>
+#include <osmocom/ctrl/control_if.h>
+#include <osmocom/vty/stats.h>
+#include <osmocom/vty/command.h>
+
 #include "convolve.h"
 #include "convert.h"
+#include "trx_vty.h"
+#include "debug.h"
+#include "osmo_signal.h"
+#include "trx_rate_ctr.h"
 }
 
-/* Samples-per-symbol for downlink path
- *     4 - Uses precision modulator (more computation, less distortion)
- *     1 - Uses minimized modulator (less computation, more distortion)
- *
- *     Other values are invalid. Receive path (uplink) is always
- *     downsampled to 1 sps. Default to 4 sps for all cases.
- */
-#define DEFAULT_TX_SPS		4
+#define DEFAULT_CONFIG_FILE	"osmo-trx.cfg"
 
-/*
- * Samples-per-symbol for uplink (receiver) path
- *     Do not modify this value. EDGE configures 4 sps automatically on
- *     B200/B210 devices only. Use of 4 sps on the receive path for other
- *     configurations is not supported.
- */
-#define DEFAULT_RX_SPS		1
+#define charp2str(a) ((a) ? std::string(a) : std::string(""))
 
-/* Default configuration parameters */
-#define DEFAULT_TRX_PORT	5700
-#define DEFAULT_TRX_IP		"127.0.0.1"
-#define DEFAULT_CHANS		1
-
-struct trx_config {
-	std::string log_level;
-	std::string local_addr;
-	std::string remote_addr;
-	std::string dev_args;
-	unsigned port;
-	unsigned tx_sps;
-	unsigned rx_sps;
-	unsigned chans;
-	unsigned rtsc;
-	unsigned rach_delay;
-	bool extref;
-	bool gpsref;
-	Transceiver::FillerType filler;
-	bool mcbts;
-	double offset;
-	double rssi_offset;
-	bool swap_channels;
-	bool edge;
-	int sched_rr;
-	std::vector<std::string> rx_paths;
-	std::vector<std::string> tx_paths;
-};
+static char* config_file = (char*)DEFAULT_CONFIG_FILE;
 
+struct osmo_fd signal_ofd;
 volatile bool gshutdown = false;
 
-/* Setup configuration values
- *     Don't query the existence of the Log.Level because it's a
- *     mandatory value. That is, if it doesn't exist, the configuration
- *     table will crash or will have already crashed. Everything else we
- *     can survive without and use default values if the database entries
- *     are empty.
- */
-bool trx_setup_config(struct trx_config *config)
-{
-	std::string refstr, fillstr, divstr, mcstr, edgestr;
-	std::vector<std::string>::const_iterator si;
+static void *tall_trx_ctx;
+static struct trx_ctx *g_trx_ctx;
+static struct ctrl_handle *g_ctrlh;
 
-	if (config->mcbts && config->chans > 5) {
-		std::cout << "Unsupported number of channels" << std::endl;
-		return false;
-	}
-
-	edgestr = config->edge ? "Enabled" : "Disabled";
-	mcstr = config->mcbts ? "Enabled" : "Disabled";
-
-	if (config->extref)
-		refstr = "External";
-	else if (config->gpsref)
-		refstr = "GPS";
-	else
-		refstr = "Internal";
-
-	switch (config->filler) {
-	case Transceiver::FILLER_DUMMY:
-		fillstr = "Dummy bursts";
-		break;
-	case Transceiver::FILLER_ZERO:
-		fillstr = "Disabled";
-		break;
-	case Transceiver::FILLER_NORM_RAND:
-		fillstr = "Normal busrts with random payload";
-		break;
-	case Transceiver::FILLER_EDGE_RAND:
-		fillstr = "EDGE busrts with random payload";
-		break;
-	case Transceiver::FILLER_ACCESS_RAND:
-		fillstr = "Access busrts with random payload";
-		break;
-	}
-
-	std::ostringstream ost("");
-	ost << "Config Settings" << std::endl;
-	ost << "   Log Level............... " << config->log_level << std::endl;
-	ost << "   Device args............. " << config->dev_args << std::endl;
-	ost << "   TRX Base Port........... " << config->port << std::endl;
-	ost << "   TRX Address............. " << config->local_addr << std::endl;
-	ost << "   GSM Core Address........." << config->remote_addr << std::endl;
-	ost << "   Channels................ " << config->chans << std::endl;
-	ost << "   Tx Samples-per-Symbol... " << config->tx_sps << std::endl;
-	ost << "   Rx Samples-per-Symbol... " << config->rx_sps << std::endl;
-	ost << "   EDGE support............ " << edgestr << std::endl;
-	ost << "   Reference............... " << refstr << std::endl;
-	ost << "   C0 Filler Table......... " << fillstr << std::endl;
-	ost << "   Multi-Carrier........... " << mcstr << std::endl;
-	ost << "   Tuning offset........... " << config->offset << std::endl;
-	ost << "   RSSI to dBm offset...... " << config->rssi_offset << std::endl;
-	ost << "   Swap channels........... " << config->swap_channels << std::endl;
-	ost << "   Tx Antennas.............";
-		for (si = config->tx_paths.begin(); si != config->tx_paths.end(); ++si)
-			ost << " '" << ((*si != "") ? *si : "<default>") <<  "'";
-		ost << std::endl;
-	ost << "   Rx Antennas.............";
-		for (si = config->rx_paths.begin(); si != config->rx_paths.end(); ++si)
-			ost << " '" << ((*si != "") ? *si : "<default>") <<  "'";
-		ost << std::endl;
-
-	std::cout << ost << std::endl;
-	return true;
-}
+static RadioDevice *usrp;
+static RadioInterface *radio;
+static Transceiver *transceiver;
 
 /* Create radio interface
  *     The interface consists of sample rate changes, frequency shifts,
@@ -171,24 +88,24 @@ bool trx_setup_config(struct trx_config *config)
  *     The radio interface connects the main transceiver with the device
  *     object, which may be operating some other rate.
  */
-RadioInterface *makeRadioInterface(struct trx_config *config,
+RadioInterface *makeRadioInterface(struct trx_ctx *trx,
                                    RadioDevice *usrp, int type)
 {
 	RadioInterface *radio = NULL;
 
 	switch (type) {
 	case RadioDevice::NORMAL:
-		radio = new RadioInterface(usrp, config->tx_sps,
-					   config->rx_sps, config->chans);
+		radio = new RadioInterface(usrp, trx->cfg.tx_sps,
+					   trx->cfg.rx_sps, trx->cfg.num_chans);
 		break;
 	case RadioDevice::RESAMP_64M:
 	case RadioDevice::RESAMP_100M:
-		radio = new RadioInterfaceResamp(usrp, config->tx_sps,
-						 config->rx_sps);
+		radio = new RadioInterfaceResamp(usrp, trx->cfg.tx_sps,
+						 trx->cfg.rx_sps);
 		break;
 	case RadioDevice::MULTI_ARFCN:
-		radio = new RadioInterfaceMulti(usrp, config->tx_sps,
-						config->rx_sps, config->chans);
+		radio = new RadioInterfaceMulti(usrp, trx->cfg.tx_sps,
+						trx->cfg.rx_sps, trx->cfg.num_chans);
 		break;
 	default:
 		LOG(ALERT) << "Unsupported radio interface configuration";
@@ -203,248 +120,290 @@ RadioInterface *makeRadioInterface(struct trx_config *config,
 	return radio;
 }
 
+/* Callback function to be called every time we receive a signal from TRANSC */
+static int transc_sig_cb(unsigned int subsys, unsigned int signal,
+		     void *handler_data, void *signal_data)
+{
+	switch (signal) {
+	case S_MAIN_STOP_REQUIRED:
+		gshutdown = true;
+                break;
+	default:
+                break;
+	}
+	return 0;
+}
+
 /* Create transceiver core
  *     The multi-threaded modem core operates at multiples of the GSM rate of
  *     270.8333 ksps and consists of GSM specific modulation, demodulation,
  *     and decoding schemes. Also included are the socket interfaces for
  *     connecting to the upper layer stack.
  */
-Transceiver *makeTransceiver(struct trx_config *config, RadioInterface *radio)
+int makeTransceiver(struct trx_ctx *trx, RadioInterface *radio)
 {
-	Transceiver *trx;
 	VectorFIFO *fifo;
 
-	trx = new Transceiver(config->port, config->local_addr.c_str(),
-			      config->remote_addr.c_str(), config->tx_sps,
-			      config->rx_sps, config->chans, GSM::Time(3,0),
-			      radio, config->rssi_offset);
-	if (!trx->init(config->filler, config->rtsc,
-		       config->rach_delay, config->edge)) {
+	transceiver = new Transceiver(trx->cfg.base_port, trx->cfg.bind_addr,
+			      trx->cfg.remote_addr, trx->cfg.tx_sps,
+			      trx->cfg.rx_sps, trx->cfg.num_chans, GSM::Time(3,0),
+			      radio, trx->cfg.rssi_offset, trx->cfg.stack_size);
+	if (!transceiver->init(trx->cfg.filler, trx->cfg.rtsc,
+		       trx->cfg.rach_delay, trx->cfg.egprs, trx->cfg.ext_rach)) {
 		LOG(ALERT) << "Failed to initialize transceiver";
-		delete trx;
-		return NULL;
+		return -1;
 	}
 
-	for (size_t i = 0; i < config->chans; i++) {
+	for (size_t i = 0; i < trx->cfg.num_chans; i++) {
 		fifo = radio->receiveFIFO(i);
-		if (fifo && trx->receiveFIFO(fifo, i))
+		if (fifo && transceiver->receiveFIFO(fifo, i))
 			continue;
 
 		LOG(ALERT) << "Could not attach FIFO to channel " << i;
-		delete trx;
-		return NULL;
+		return -1;
 	}
-
-	return trx;
+	return 0;
 }
 
 static void sig_handler(int signo)
 {
-	fprintf(stdout, "Received shutdown signal");
-	gshutdown = true;
+
+	if (gshutdown)
+		/* We are in the middle of shutdown process, avoid any kind of extra
+		   action like printing */
+		return;
+
+	fprintf(stderr, "signal %d received\n", signo);
+	switch (signo) {
+	case SIGINT:
+	case SIGTERM:
+		fprintf(stderr, "shutting down\n");
+		gshutdown = true;
+		break;
+	case SIGABRT:
+	case SIGUSR1:
+		talloc_report(tall_trx_ctx, stderr);
+		talloc_report_full(tall_trx_ctx, stderr);
+		break;
+	case SIGUSR2:
+		talloc_report_full(tall_trx_ctx, stderr);
+		break;
+	case SIGHUP:
+		log_targets_reopen();
+	default:
+		break;
+	}
+
+}
+
+static int signalfd_callback(struct osmo_fd *ofd, unsigned int what)
+{
+	struct signalfd_siginfo fdsi;
+	ssize_t s;
+
+	s = read(ofd->fd, &fdsi, sizeof(struct signalfd_siginfo));
+	if (s < 0) {
+		LOG(FATAL) << "Failed to read from signalfd ("<< ofd->fd << "): " << errno;
+		gshutdown = true;
+		return 0;
+	}
+	sig_handler(fdsi.ssi_signo);
+	return 0;
 }
 
 static void setup_signal_handlers()
 {
-	if (signal(SIGINT, sig_handler) == SIG_ERR) {
-		fprintf(stderr, "Failed to install SIGINT signal handler\n");
+	sigset_t set;
+	int sfd;
+
+	signal(SIGABRT, &sig_handler);
+	osmo_init_ignore_signals();
+
+	/* Other threads created by this thread (main) will inherit a copy of the
+	signal mask. */
+	sigemptyset(&set);
+	sigaddset(&set, SIGINT);
+	sigaddset(&set, SIGTERM);
+	sigaddset(&set, SIGUSR1);
+	sigaddset(&set, SIGUSR2);
+	sigaddset(&set, SIGHUP);
+	if (pthread_sigmask(SIG_BLOCK, &set, NULL)) {
+		fprintf(stderr, "pthread_sigmask() failed.\n");
 		exit(EXIT_FAILURE);
 	}
-	if (signal(SIGTERM, sig_handler) == SIG_ERR) {
-		fprintf(stderr, "Couldn't install SIGTERM signal handler\n");
-		exit( EXIT_FAILURE);
+
+	if ((sfd = signalfd(-1, &set, 0)) == -1) {
+		fprintf(stderr, "signalfd() failed (%d).\n", errno);
+		exit(EXIT_FAILURE);
 	}
-}
 
-
-static std::vector<std::string> comma_delimited_to_vector(char* opt) {
-	std::string str = std::string(opt);
-	std::vector<std::string> result;
-	std::stringstream ss(str);
-
-	while( ss.good() )
-	{
-	    std::string substr;
-	    getline(ss, substr, ',');
-	    result.push_back(substr);
+	osmo_fd_setup(&signal_ofd, sfd, BSC_FD_READ, signalfd_callback, NULL, 0);
+	if (osmo_fd_register(&signal_ofd) < 0) {
+		fprintf(stderr, "osmo_fd_register() failed.\n");
+		exit(EXIT_FAILURE);
 	}
-	return result;
 }
 
 static void print_help()
 {
 	fprintf(stdout, "Options:\n"
-		"  -h    This text\n"
-		"  -a    UHD device args\n"
-		"  -l    Logging level (%s)\n"
-		"  -i    IP address of GSM core\n"
-		"  -j    IP address of osmo-trx\n"
-		"  -p    Base port number\n"
-		"  -e    Enable EDGE receiver\n"
-		"  -m    Enable multi-ARFCN transceiver (default=disabled)\n"
-		"  -x    Enable external 10 MHz reference\n"
-		"  -g    Enable GPSDO reference\n"
-		"  -s    Tx samples-per-symbol (1 or 4)\n"
-		"  -b    Rx samples-per-symbol (1 or 4)\n"
-		"  -c    Number of ARFCN channels (default=1)\n"
-		"  -f    Enable C0 filler table\n"
-		"  -o    Set baseband frequency offset (default=auto)\n"
-		"  -r    Random Normal Burst test mode with TSC\n"
-		"  -A    Random Access Burst test mode with delay\n"
-		"  -R    RSSI to dBm offset in dB (default=0)\n"
-		"  -S    Swap channels (UmTRX only)\n"
-		"  -t    SCHED_RR real-time priority (1..32)\n"
-		"  -y    comma-delimited list of Tx paths (num elements matches -c)\n"
-		"  -z    comma-delimited list of Rx paths (num elements matches -c)\n",
-		"EMERG, ALERT, CRT, ERR, WARNING, NOTICE, INFO, DEBUG");
+		"  -h, --help      This text\n"
+		"  -C, --config    Filename The config file to use\n"
+		"  -V, --version   Print the version of OsmoTRX\n"
+		);
 }
 
-static void handle_options(int argc, char **argv, struct trx_config *config)
+static void print_deprecated(char opt)
+{
+	LOG(WARNING) << "Cmd line option '" << opt << "' is deprecated and will be soon removed."
+		<< " Please use VTY cfg option instead."
+		<< " All cmd line options are already being overridden by VTY options if set.";
+}
+
+static void handle_options(int argc, char **argv, struct trx_ctx* trx)
 {
 	int option;
-	bool tx_path_set = false, rx_path_set = false;
+	unsigned int i;
+	std::vector<std::string> rx_paths, tx_paths;
+	bool rx_paths_set = false, tx_paths_set = false;
+	static struct option long_options[] = {
+		{"help", 0, 0, 'h'},
+		{"config", 1, 0, 'C'},
+		{"version", 0, 0, 'V'},
+		{NULL, 0, 0, 0}
+	};
 
-	config->log_level = "NOTICE";
-	config->local_addr = DEFAULT_TRX_IP;
-	config->remote_addr = DEFAULT_TRX_IP;
-	config->port = DEFAULT_TRX_PORT;
-	config->tx_sps = DEFAULT_TX_SPS;
-	config->rx_sps = DEFAULT_RX_SPS;
-	config->chans = DEFAULT_CHANS;
-	config->rtsc = 0;
-	config->rach_delay = 0;
-	config->extref = false;
-	config->gpsref = false;
-	config->filler = Transceiver::FILLER_ZERO;
-	config->mcbts = false;
-	config->offset = 0.0;
-	config->rssi_offset = 0.0;
-	config->swap_channels = false;
-	config->edge = false;
-	config->sched_rr = -1;
-	config->tx_paths = std::vector<std::string>(DEFAULT_CHANS, "");
-	config->rx_paths = std::vector<std::string>(DEFAULT_CHANS, "");
-
-	while ((option = getopt(argc, argv, "ha:l:i:j:p:c:dmxgfo:s:b:r:A:R:Set:y:z:")) != -1) {
+	while ((option = getopt_long(argc, argv, "ha:l:i:j:p:c:dmxgfo:s:b:r:A:R:Set:y:z:C:V", long_options,
+		NULL)) != -1) {
 		switch (option) {
 		case 'h':
 			print_help();
 			exit(0);
 			break;
 		case 'a':
-			config->dev_args = optarg;
+			print_deprecated(option);
+			osmo_talloc_replace_string(trx, &trx->cfg.dev_args, optarg);
 			break;
 		case 'l':
-			config->log_level = optarg;
+			print_deprecated(option);
+			log_set_log_level(osmo_stderr_target, atoi(optarg));
 			break;
 		case 'i':
-			config->remote_addr = optarg;
+			print_deprecated(option);
+			osmo_talloc_replace_string(trx, &trx->cfg.remote_addr, optarg);
 			break;
 		case 'j':
-			config->local_addr = optarg;
+			print_deprecated(option);
+			osmo_talloc_replace_string(trx, &trx->cfg.bind_addr, optarg);
 			break;
 		case 'p':
-			config->port = atoi(optarg);
+			print_deprecated(option);
+			trx->cfg.base_port = atoi(optarg);
 			break;
 		case 'c':
-			config->chans = atoi(optarg);
+			print_deprecated(option);
+			trx->cfg.num_chans = atoi(optarg);
 			break;
 		case 'm':
-			config->mcbts = true;
+			print_deprecated(option);
+			trx->cfg.multi_arfcn = true;
 			break;
 		case 'x':
-			config->extref = true;
+			print_deprecated(option);
+			trx->cfg.clock_ref = REF_EXTERNAL;
 			break;
 		case 'g':
-			config->gpsref = true;
+			print_deprecated(option);
+			trx->cfg.clock_ref = REF_GPS;
 			break;
 		case 'f':
-			config->filler = Transceiver::FILLER_DUMMY;
+			print_deprecated(option);
+			trx->cfg.filler = FILLER_DUMMY;
 			break;
 		case 'o':
-			config->offset = atof(optarg);
+			print_deprecated(option);
+			trx->cfg.offset = atof(optarg);
 			break;
 		case 's':
-			config->tx_sps = atoi(optarg);
+			print_deprecated(option);
+			trx->cfg.tx_sps = atoi(optarg);
 			break;
 		case 'b':
-			config->rx_sps = atoi(optarg);
+			print_deprecated(option);
+			trx->cfg.rx_sps = atoi(optarg);
 			break;
 		case 'r':
-			config->rtsc = atoi(optarg);
-			config->filler = Transceiver::FILLER_NORM_RAND;
+			print_deprecated(option);
+			trx->cfg.rtsc = atoi(optarg);
+			if (!trx->cfg.egprs) /* Don't override egprs which sets different filler */
+				trx->cfg.filler = FILLER_NORM_RAND;
 			break;
 		case 'A':
-			config->rach_delay = atoi(optarg);
-			config->filler = Transceiver::FILLER_ACCESS_RAND;
+			print_deprecated(option);
+			trx->cfg.rach_delay = atoi(optarg);
+			trx->cfg.filler = FILLER_ACCESS_RAND;
 			break;
 		case 'R':
-			config->rssi_offset = atof(optarg);
+			print_deprecated(option);
+			trx->cfg.rssi_offset = atof(optarg);
 			break;
 		case 'S':
-			config->swap_channels = true;
+			print_deprecated(option);
+			trx->cfg.swap_channels = true;
 			break;
 		case 'e':
-			config->edge = true;
+			print_deprecated(option);
+			trx->cfg.egprs = true;
 			break;
 		case 't':
-			config->sched_rr = atoi(optarg);
+			print_deprecated(option);
+			trx->cfg.sched_rr = atoi(optarg);
 			break;
 		case 'y':
-			config->tx_paths = comma_delimited_to_vector(optarg);
-			tx_path_set = true;
+			print_deprecated(option);
+			tx_paths = comma_delimited_to_vector(optarg);
+			tx_paths_set = true;
 			break;
 		case 'z':
-			config->rx_paths = comma_delimited_to_vector(optarg);
-			rx_path_set = true;
+			print_deprecated(option);
+			rx_paths = comma_delimited_to_vector(optarg);
+			rx_paths_set = true;
+			break;
+		case 'C':
+			config_file = optarg;
+			break;
+		case 'V':
+			print_version(1);
+			exit(0);
 			break;
 		default:
-			print_help();
-			exit(0);
+			goto bad_config;
 		}
 	}
 
-	/* Force 4 SPS for EDGE or multi-ARFCN configurations */
-	if ((config->edge) || (config->mcbts)) {
-		config->tx_sps = 4;
-		config->rx_sps = 4;
-	}
-
-	if (config->gpsref && config->extref) {
-		printf("External and GPSDO references unavailable at the same time\n\n");
+	if (argc > optind) {
+		LOG(ERROR) << "Unsupported positional arguments on command line";
 		goto bad_config;
 	}
 
-	if (config->edge && (config->filler == Transceiver::FILLER_NORM_RAND))
-		config->filler = Transceiver::FILLER_EDGE_RAND;
+	/* Cmd line option specific validation & setup */
 
-	if ((config->tx_sps != 1) && (config->tx_sps != 4) &&
-	    (config->rx_sps != 1) && (config->rx_sps != 4)) {
-		printf("Unsupported samples-per-symbol %i\n\n", config->tx_sps);
+	if (trx->cfg.num_chans > TRX_CHAN_MAX) {
+		LOG(ERROR) << "Too many channels requested, maximum is " <<  TRX_CHAN_MAX;
 		goto bad_config;
 	}
-
-	if (config->rtsc > 7) {
-		printf("Invalid training sequence %i\n\n", config->rtsc);
+	if ((tx_paths_set && tx_paths.size() != trx->cfg.num_chans) ||
+	    (rx_paths_set && rx_paths.size() != trx->cfg.num_chans)) {
+		LOG(ERROR) << "Num of channels and num of Rx/Tx Antennas doesn't match";
 		goto bad_config;
 	}
-
-	if (config->rach_delay > 68) {
-		printf("RACH delay is too big %i\n\n", config->rach_delay);
-		goto bad_config;
-	}
-
-	if (!tx_path_set) {
-		config->tx_paths = std::vector<std::string>(config->chans, "");
-	} else if (config->tx_paths.size() != config->chans) {
-		printf("Num of channels and num of Tx Antennas doesn't match\n\n");
-		goto bad_config;
-	}
-	if (!rx_path_set) {
-		config->rx_paths = std::vector<std::string>(config->chans, "");
-	} else if (config->rx_paths.size() != config->chans) {
-		printf("Num of channels and num of Rx Antennas doesn't match\n\n");
-		goto bad_config;
+	for (i = 0; i < trx->cfg.num_chans; i++) {
+		trx->cfg.chans[i].trx = trx;
+		trx->cfg.chans[i].idx = i;
+		if (tx_paths_set)
+			osmo_talloc_replace_string(trx, &trx->cfg.chans[i].tx_path, tx_paths[i].c_str());
+		if (rx_paths_set)
+			osmo_talloc_replace_string(trx, &trx->cfg.chans[i].rx_path, rx_paths[i].c_str());
 	}
 
 	return;
@@ -454,29 +413,144 @@ bad_config:
 	exit(0);
 }
 
-static int set_sched_rr(int prio)
+int trx_validate_config(struct trx_ctx *trx)
+{
+	if (trx->cfg.multi_arfcn && trx->cfg.num_chans > TRX_MCHAN_MAX) {
+		LOG(ERROR) << "Unsupported number of channels";
+		return -1;
+	}
+
+	/* Force 4 SPS for EDGE or multi-ARFCN configurations */
+	if ((trx->cfg.egprs || trx->cfg.multi_arfcn) &&
+	    (trx->cfg.tx_sps!=4 || trx->cfg.rx_sps!=4)) {
+		LOG(ERROR) << "EDGE and Multi-Carrier options require 4 tx and rx sps. Check you config.";
+		return -1;
+	}
+
+	return 0;
+}
+
+static int set_sched_rr(unsigned int prio)
 {
 	struct sched_param param;
 	int rc;
 	memset(&param, 0, sizeof(param));
 	param.sched_priority = prio;
-	printf("Setting SCHED_RR priority(%d)\n", param.sched_priority);
+	LOG(INFO) << "Setting SCHED_RR priority " << param.sched_priority;
 	rc = sched_setscheduler(getpid(), SCHED_RR, &param);
 	if (rc != 0) {
-		std::cerr << "Config: Setting SCHED_RR failed" << std::endl;
+		LOG(ERROR) << "Config: Setting SCHED_RR failed";
 		return -1;
 	}
 	return 0;
 }
 
+static void print_config(struct trx_ctx *trx)
+{
+	unsigned int i;
+	std::ostringstream ost("");
+
+	ost << "Config Settings" << std::endl;
+	ost << "   Log Level............... " << (unsigned int) osmo_stderr_target->loglevel << std::endl;
+	ost << "   Device args............. " << charp2str(trx->cfg.dev_args) << std::endl;
+	ost << "   TRX Base Port........... " << trx->cfg.base_port << std::endl;
+	ost << "   TRX Address............. " << charp2str(trx->cfg.bind_addr) << std::endl;
+	ost << "   GSM BTS Address......... " << charp2str(trx->cfg.remote_addr) << std::endl;
+	ost << "   Channels................ " << trx->cfg.num_chans << std::endl;
+	ost << "   Tx Samples-per-Symbol... " << trx->cfg.tx_sps << std::endl;
+	ost << "   Rx Samples-per-Symbol... " << trx->cfg.rx_sps << std::endl;
+	ost << "   EDGE support............ " << trx->cfg.egprs << std::endl;
+	ost << "   Extended RACH support... " << trx->cfg.ext_rach << std::endl;
+	ost << "   Reference............... " << trx->cfg.clock_ref << std::endl;
+	ost << "   Filler Burst Type....... " << get_value_string(filler_names, trx->cfg.filler) << std::endl;
+	ost << "   Filler Burst TSC........ " << trx->cfg.rtsc << std::endl;
+	ost << "   Filler Burst RACH Delay. " << trx->cfg.rach_delay << std::endl;
+	ost << "   Multi-Carrier........... " << trx->cfg.multi_arfcn << std::endl;
+	ost << "   Tuning offset........... " << trx->cfg.offset << std::endl;
+	ost << "   RSSI to dBm offset...... " << trx->cfg.rssi_offset << std::endl;
+	ost << "   Swap channels........... " << trx->cfg.swap_channels << std::endl;
+	ost << "   Tx Antennas.............";
+	for (i = 0; i < trx->cfg.num_chans; i++) {
+		std::string p = charp2str(trx->cfg.chans[i].tx_path);
+		ost << " '" << ((p != "") ? p : "<default>") <<  "'";
+	}
+	ost << std::endl;
+	ost << "   Rx Antennas.............";
+	for (i = 0; i < trx->cfg.num_chans; i++) {
+		std::string p = charp2str(trx->cfg.chans[i].rx_path);
+		ost << " '" << ((p != "") ? p : "<default>") <<  "'";
+	}
+	ost << std::endl;
+
+	LOG(INFO) << ost << std::endl;
+}
+
+static void trx_stop()
+{
+	LOG(NOTICE) << "Shutting down transceiver..." << std::endl;
+
+	delete transceiver;
+	delete radio;
+	delete usrp;
+}
+
+static int trx_start(struct trx_ctx *trx)
+{
+	int type, chans;
+	unsigned int i;
+	std::vector<std::string> rx_paths, tx_paths;
+	RadioDevice::InterfaceType iface = RadioDevice::NORMAL;
+
+	/* Create the low level device object */
+	if (trx->cfg.multi_arfcn)
+		iface = RadioDevice::MULTI_ARFCN;
+
+	/* Generate vector of rx/tx_path: */
+	for (i = 0; i < trx->cfg.num_chans; i++) {
+		rx_paths.push_back(charp2str(trx->cfg.chans[i].rx_path));
+		tx_paths.push_back(charp2str(trx->cfg.chans[i].tx_path));
+	}
+
+	usrp = RadioDevice::make(trx->cfg.tx_sps, trx->cfg.rx_sps, iface,
+				 trx->cfg.num_chans, trx->cfg.offset,
+				 tx_paths, rx_paths);
+	type = usrp->open(charp2str(trx->cfg.dev_args), trx->cfg.clock_ref, trx->cfg.swap_channels);
+	if (type < 0) {
+		LOG(ALERT) << "Failed to create radio device" << std::endl;
+		goto shutdown;
+	}
+
+	/* Setup the appropriate device interface */
+	radio = makeRadioInterface(trx, usrp, type);
+	if (!radio)
+		goto shutdown;
+
+	/* Create the transceiver core */
+	if (makeTransceiver(trx, radio) < 0)
+		goto shutdown;
+
+	chans = transceiver->numChans();
+	LOG(NOTICE) << "-- Transceiver active with "
+		  << chans << " channel(s)" << std::endl;
+
+	return 0;
+
+shutdown:
+	trx_stop();
+	return -1;
+}
+
 int main(int argc, char *argv[])
 {
-	int type, chans, ref;
-	RadioDevice *usrp;
-	RadioInterface *radio = NULL;
-	Transceiver *trx = NULL;
-	RadioDevice::InterfaceType iface = RadioDevice::NORMAL;
-	struct trx_config config;
+	int rc;
+
+	tall_trx_ctx = talloc_named_const(NULL, 0, "OsmoTRX");
+	msgb_talloc_ctx_init(tall_trx_ctx, 0);
+	g_vty_info.tall_ctx = tall_trx_ctx;
+
+	setup_signal_handlers();
+
+	g_trx_ctx = vty_trx_ctx_alloc(tall_trx_ctx);
 
 #ifdef HAVE_SSE3
 	printf("Info: SSE3 support compiled in");
@@ -502,70 +576,83 @@ int main(int argc, char *argv[])
 #endif
 #endif
 
+#ifndef HAVE_ATOMIC_OPS
+#pragma message ("Built without atomic operation support. Using Mutex, it may affect performance!")
+	printf("Built without atomic operation support. Using Mutex, it may affect performance!\n");
+#endif
+
 	convolve_init();
 	convert_init();
 
-	handle_options(argc, argv, &config);
+	osmo_init_logging2(tall_trx_ctx, &log_info);
+	log_enable_multithread();
+	osmo_stats_init(tall_trx_ctx);
+	vty_init(&g_vty_info);
+	ctrl_vty_init(tall_trx_ctx);
+	trx_vty_init(g_trx_ctx);
 
-	if (config.sched_rr != -1) {
-		if (set_sched_rr(config.sched_rr) < 0)
-			return EXIT_FAILURE;
+	logging_vty_add_cmds();
+	osmo_talloc_vty_add_cmds();
+	osmo_stats_vty_add_cmds();
+
+	handle_options(argc, argv, g_trx_ctx);
+
+	rate_ctr_init(tall_trx_ctx);
+
+	rc = vty_read_config_file(config_file, NULL);
+	if (rc < 0) {
+		fprintf(stderr, "Failed to open config file: '%s'\n", config_file);
+		exit(2);
 	}
 
-	setup_signal_handlers();
+	rc = telnet_init_dynif(tall_trx_ctx, NULL, vty_get_bind_addr(), OSMO_VTY_PORT_TRX);
+	if (rc < 0)
+		exit(1);
 
-	/* Check database sanity */
-	if (!trx_setup_config(&config)) {
-		std::cerr << "Config: Database failure - exiting" << std::endl;
+	g_ctrlh = ctrl_interface_setup_dynip(NULL, ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_TRX, NULL);
+	if (!g_ctrlh) {
+		LOG(ERROR) << "Failed to create CTRL interface.\n";
+		exit(1);
+	}
+
+	/* Backward compatibility: Hack to have 1 channel allocated by default.
+	 * Can be Dropped once we * get rid of "-c" cmdline param */
+	if (g_trx_ctx->cfg.num_chans == 0) {
+		g_trx_ctx->cfg.num_chans = 1;
+		g_trx_ctx->cfg.chans[0].trx = g_trx_ctx;
+		g_trx_ctx->cfg.chans[0].idx = 0;
+		LOG(ERROR) << "No explicit channel config found. Make sure you" \
+			" configure channels in VTY config. Using 1 channel as default," \
+			" but expect your config to break in the future.";
+	}
+
+	print_config(g_trx_ctx);
+
+	if (trx_validate_config(g_trx_ctx) < 0) {
+		LOG(ERROR) << "Config failure - exiting";
 		return EXIT_FAILURE;
 	}
 
-	gLogInit(config.log_level.c_str());
+	if (g_trx_ctx->cfg.sched_rr) {
+		if (set_sched_rr(g_trx_ctx->cfg.sched_rr) < 0)
+			return EXIT_FAILURE;
+	}
+
+	osmo_signal_register_handler(SS_MAIN, transc_sig_cb, NULL);
+	trx_rate_ctr_init(tall_trx_ctx, g_trx_ctx);
 
 	srandom(time(NULL));
 
-	/* Create the low level device object */
-	if (config.mcbts)
-		iface = RadioDevice::MULTI_ARFCN;
-
-	if (config.extref)
-		ref = RadioDevice::REF_EXTERNAL;
-	else if (config.gpsref)
-		ref = RadioDevice::REF_GPS;
-	else
-		ref = RadioDevice::REF_INTERNAL;
-
-	usrp = RadioDevice::make(config.tx_sps, config.rx_sps, iface,
-				 config.chans, config.offset, config.tx_paths, config.rx_paths);
-	type = usrp->open(config.dev_args, ref, config.swap_channels);
-	if (type < 0) {
-		LOG(ALERT) << "Failed to create radio device" << std::endl;
-		goto shutdown;
-	}
-
-	/* Setup the appropriate device interface */
-	radio = makeRadioInterface(&config, usrp, type);
-	if (!radio)
-		goto shutdown;
-
-	/* Create the transceiver core */
-	trx = makeTransceiver(&config, radio);
-	if (!trx)
-		goto shutdown;
-
-	chans = trx->numChans();
-	std::cout << "-- Transceiver active with "
-		  << chans << " channel(s)" << std::endl;
+	if(trx_start(g_trx_ctx) < 0)
+		return EXIT_FAILURE;
 
 	while (!gshutdown)
-		sleep(1);
+		osmo_select_main(0);
 
-shutdown:
-	std::cout << "Shutting down transceiver..." << std::endl;
-
-	delete trx;
-	delete radio;
-	delete usrp;
+	trx_stop();
 
+	osmo_fd_unregister(&signal_ofd);
+	osmo_fd_close(&signal_ofd);
+	osmo_signal_unregister_handler(SS_MAIN, transc_sig_cb, NULL);
 	return 0;
 }

Transceiver52M/proto_trxd.c

@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2019 sysmocom - s.f.m.c. GmbH
+ * All Rights Reserved
+ *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * 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/>.
+ * See the COPYING file in the main directory for details.
+ */
+
+#include "proto_trxd.h"
+
+#include <osmocom/core/bits.h>
+
+static void trxd_fill_common(struct trxd_hdr_common *common, const struct trx_ul_burst_ind *bi, uint8_t version)
+{
+	common->version = version & 0b1111;
+	common->reserved = 0;
+	common->tn = bi->tn;
+	osmo_store32be(bi->fn, &common->fn);
+}
+
+static void trxd_fill_v0_specific(struct trxd_hdr_v0_specific *v0, const struct trx_ul_burst_ind *bi)
+{
+	int toa_int;
+
+	/* in 1/256 symbols, round to closest integer */
+	toa_int = (int) (bi->toa * 256.0 + 0.5);
+	v0->rssi = bi->rssi;
+	osmo_store16be(toa_int, &v0->toa);
+}
+
+static void trxd_fill_v1_specific(struct trxd_hdr_v1_specific *v1, const struct trx_ul_burst_ind *bi)
+{
+	int16_t ci_int_cB;
+
+	/* deciBels->centiBels, round to closest integer */
+	ci_int_cB = (int16_t)((bi->ci * 10) + 0.5);
+
+	v1->idle = !!bi->idle;
+	v1->modulation = (bi->modulation == MODULATION_GMSK) ?
+					TRXD_MODULATION_GMSK(bi->tss) :
+					TRXD_MODULATION_8PSK(bi->tss);
+	v1->tsc = bi->tsc;
+	osmo_store16be(ci_int_cB, &v1->ci);
+}
+
+static void trxd_fill_burst_normalized255(uint8_t* soft_bits, const struct trx_ul_burst_ind *bi)
+{
+	unsigned i;
+	for (i = 0; i < bi->nbits; i++)
+		soft_bits[i] = (char) round(bi->rx_burst[i] * 255.0);
+}
+
+bool trxd_send_burst_ind_v0(size_t chan, int fd, const struct trx_ul_burst_ind *bi) {
+	int rc;
+
+	/* v0 doesn't support idle frames, they are simply dropped, not sent */
+	if(bi->idle)
+		return true;
+
+	/* +2: Historically (OpenBTS times), two extra non-used bytes are sent appended to each burst */
+	char buf[sizeof(struct trxd_hdr_v0) + bi->nbits + 2];
+	struct trxd_hdr_v0* pkt = (struct trxd_hdr_v0*)buf;
+
+	trxd_fill_common(&pkt->common, bi, 0);
+	trxd_fill_v0_specific(&pkt->v0, bi);
+	trxd_fill_burst_normalized255(&pkt->soft_bits[0], bi);
+
+	/* +1: Historical reason. There's an uninitizalied byte in there: pkt->soft_bits[bi->nbits] */
+	pkt->soft_bits[bi->nbits + 1] = '\0';
+
+	rc = write(fd, buf, sizeof(struct trxd_hdr_v0) + bi->nbits + 2);
+	if (rc <= 0) {
+		CLOGCHAN(chan, DMAIN, LOGL_NOTICE, "mDataSockets write(%d) failed: %d\n", fd, rc);
+		return false;
+	}
+	return true;
+}
+
+bool trxd_send_burst_ind_v1(size_t chan, int fd, const struct trx_ul_burst_ind *bi) {
+	int rc;
+	size_t buf_len;
+
+	buf_len = sizeof(struct trxd_hdr_v1);
+	if (!bi->idle)
+		buf_len += bi->nbits;
+	char buf[buf_len];
+
+	struct trxd_hdr_v1* pkt = (struct trxd_hdr_v1*)buf;
+	trxd_fill_common(&pkt->common, bi, 1);
+	trxd_fill_v0_specific(&pkt->v0, bi);
+	trxd_fill_v1_specific(&pkt->v1, bi);
+
+	if (!bi->idle)
+		trxd_fill_burst_normalized255(&pkt->soft_bits[0], bi);
+
+	rc = write(fd, buf, buf_len);
+	if (rc <= 0) {
+		CLOGCHAN(chan, DMAIN, LOGL_NOTICE, "mDataSockets write(%d) failed: %d\n", fd, rc);
+		return false;
+	}
+	return true;
+}

Transceiver52M/proto_trxd.h

@@ -0,0 +1,101 @@
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <math.h>
+
+#include <osmocom/core/endian.h>
+
+#include "debug.h"
+
+#define MAX_RX_BURST_BUF_SIZE 444 /* 444 = EDGE_BURST_NBITS */
+
+enum Modulation {
+	MODULATION_GMSK,
+	MODULATION_8PSK,
+/* Not supported yet:
+	MODULATION_AQPSK,
+	MODULATION_16QAM,
+	MODULATION_32QAM
+*/
+};
+
+struct trx_ul_burst_ind {
+	float rx_burst[MAX_RX_BURST_BUF_SIZE]; /* soft bits normalized 0..1 */
+	unsigned nbits; // number of symbols per slot in rxBurst, not counting guard periods
+	uint32_t fn; // TDMA frame number
+	uint8_t tn; // TDMA time-slot number
+	double rssi; // in dBFS
+	double toa;  // in symbols
+	double noise; // noise level in dBFS
+	bool idle; // true if no valid burst is included
+	enum Modulation modulation; // modulation type
+	uint8_t tss; // training sequence set
+	uint8_t tsc; // training sequence code
+	float ci; // Carrier-to-Interference ratio, in dB
+};
+
+bool trxd_send_burst_ind_v0(size_t chan, int fd, const struct trx_ul_burst_ind *bi);
+bool trxd_send_burst_ind_v1(size_t chan, int fd, const struct trx_ul_burst_ind *bi);
+
+/* The latest supported TRXD header format version */
+#define TRX_DATA_FORMAT_VER    1
+
+struct trxd_hdr_common {
+#if OSMO_IS_LITTLE_ENDIAN
+	uint8_t tn:3,
+		reserved:1,
+		version:4;
+#elif OSMO_IS_BIG_ENDIAN
+	uint8_t version:4,
+		reserved:1,
+		tn:3;
+#endif
+	uint32_t fn; /* big endian */
+} __attribute__ ((packed));
+
+struct trxd_hdr_v0_specific {
+	uint8_t rssi;
+	uint16_t toa; /* big endian */
+} __attribute__ ((packed));
+
+struct trxd_hdr_v0 {
+	struct trxd_hdr_common common;
+	struct trxd_hdr_v0_specific v0;
+	uint8_t soft_bits[0];
+} __attribute__ ((packed));
+
+/* Downlink burst (BTS->TRX), v0 anf v1 use same format */
+struct trxd_hdr_v01_dl {
+	struct trxd_hdr_common common;
+	uint8_t tx_att; /* Tx Attentuation */
+	uint8_t soft_bits[0];
+} __attribute__ ((packed));
+
+
+#define TRXD_MODULATION_GMSK(ts_set) (0b0000 | (ts_set & 0b0011))
+#define TRXD_MODULATION_8PSK(ts_set) (0b0100 | (ts_set & 0b0001))
+#define TRXD_MODULATION_AQPSK(ts_set) (0b0110 | (ts_set & 0b0001))
+#define TRXD_MODULATION_16QAM(ts_set) (0b1000 | (ts_set & 0b0001))
+#define TRXD_MODULATION_32QAM(ts_set) (0b1010 | (ts_set & 0b0001))
+
+struct trxd_hdr_v1_specific {
+#if OSMO_IS_LITTLE_ENDIAN
+	uint8_t tsc:3,
+		modulation:4,
+		idle:1;
+#elif OSMO_IS_BIG_ENDIAN
+	uint8_t idle:1,
+		modulation:4,
+		tsc:3;
+#endif
+	int16_t ci;  /* big endian, in centiBels */
+} __attribute__ ((packed));
+
+struct trxd_hdr_v1 {
+	struct trxd_hdr_common common;
+	struct trxd_hdr_v0_specific v0;
+	struct trxd_hdr_v1_specific v1;
+	uint8_t soft_bits[0];
+} __attribute__ ((packed));

Transceiver52M/radioBuffer.cpp

@@ -5,6 +5,8 @@
  *
  * Author: Tom Tsou <tom@tsou.cc>
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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

Transceiver52M/radioClock.cpp

@@ -4,6 +4,8 @@
  *
  * Copyright 2011 Free Software Foundation, Inc.
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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

Transceiver52M/radioClock.h

@@ -4,6 +4,8 @@
  *
  * Copyright 2011 Free Software Foundation, Inc.
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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

Transceiver52M/radioInterface.cpp

@@ -4,6 +4,8 @@
  * Copyright (C) 2008-2014 Free Software Foundation, Inc.
  * Copyright (C) 2015 Ettus Research LLC
  *
+ * SPDX-License-Identifier: AGPL-3.0+
+ *
  * 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
@@ -22,6 +24,7 @@
 #include "radioInterface.h"
 #include "Resampler.h"
 #include <Logger.h>
+#include <Threads.h>
 
 extern "C" {
 #include "convert.h"
@@ -30,11 +33,12 @@ extern "C" {
 #define CHUNK		625
 #define NUMCHUNKS	4
 
-RadioInterface::RadioInterface(RadioDevice *wRadio, size_t tx_sps,
+RadioInterface::RadioInterface(RadioDevice *wDevice, size_t tx_sps,
                                size_t rx_sps, size_t chans,
                                int wReceiveOffset, GSM::Time wStartTime)
-  : mRadio(wRadio), mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans),
-    underrun(false), overrun(false), receiveOffset(wReceiveOffset), mOn(false)
+  : mDevice(wDevice), mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans),
+    underrun(false), overrun(false), writeTimestamp(0), readTimestamp(0),
+    receiveOffset(wReceiveOffset), mOn(false)
 {
   mClock.set(wStartTime);
 }
@@ -75,6 +79,14 @@ bool RadioInterface::init(int type)
 
 void RadioInterface::close()
 {
+  for (std::vector<RadioBuffer*>::iterator it = sendBuffer.begin(); it != sendBuffer.end(); ++it)
+          delete *it;
+  for (std::vector<RadioBuffer*>::iterator it = recvBuffer.begin(); it != recvBuffer.end(); ++it)
+          delete *it;
+  for (std::vector<short*>::iterator it = convertSendBuffer.begin(); it != convertSendBuffer.end(); ++it)
+          delete[] *it;
+  for (std::vector<short*>::iterator it = convertRecvBuffer.begin(); it != convertRecvBuffer.end(); ++it)
+          delete[] *it;
   sendBuffer.resize(0);
   recvBuffer.resize(0);
   convertSendBuffer.resize(0);
@@ -82,11 +94,11 @@ void RadioInterface::close()
 }
 
 double RadioInterface::fullScaleInputValue(void) {
-  return mRadio->fullScaleInputValue();
+  return mDevice->fullScaleInputValue();
 }
 
 double RadioInterface::fullScaleOutputValue(void) {
-  return mRadio->fullScaleOutputValue();
+  return mDevice->fullScaleOutputValue();
 }
 
 int RadioInterface::setPowerAttenuation(int atten, size_t chan)
@@ -101,8 +113,8 @@ int RadioInterface::setPowerAttenuation(int atten, size_t chan)
   if (atten < 0.0)
     atten = 0.0;
 
-  rfGain = mRadio->setTxGain(mRadio->maxTxGain() - (double) atten, chan);
-  digAtten = (double) atten - mRadio->maxTxGain() + rfGain;
+  rfGain = setTxGain(mDevice->maxTxGain() - (double) atten, chan);
+  digAtten = (double) atten - mDevice->maxTxGain() + rfGain;
 
   if (digAtten < 1.0)
     powerScaling[chan] = 1.0;
@@ -137,12 +149,28 @@ int RadioInterface::unRadioifyVector(signalVector *newVector, size_t chan)
 
 bool RadioInterface::tuneTx(double freq, size_t chan)
 {
-  return mRadio->setTxFreq(freq, chan);
+  return mDevice->setTxFreq(freq, chan);
 }
 
 bool RadioInterface::tuneRx(double freq, size_t chan)
 {
-  return mRadio->setRxFreq(freq, chan);
+  return mDevice->setRxFreq(freq, chan);
+}
+
+/** synchronization thread loop */
+void *AlignRadioServiceLoopAdapter(RadioInterface *radioInterface)
+{
+  set_selfthread_name("AlignRadio");
+  while (1) {
+    sleep(60);
+    radioInterface->alignRadio();
+    pthread_testcancel();
+  }
+  return NULL;
+}
+
+void RadioInterface::alignRadio() {
+  mDevice->updateAlignment(writeTimestamp+ (TIMESTAMP) 10000);
 }
 
 bool RadioInterface::start()
@@ -151,12 +179,12 @@ bool RadioInterface::start()
     return true;
 
   LOG(INFO) << "Starting radio device";
-#ifdef USRP1
-  mAlignRadioServiceLoopThread.start((void * (*)(void*))AlignRadioServiceLoopAdapter,
-                                     (void*)this);
-#endif
+  if (mDevice->requiresRadioAlign())
+        mAlignRadioServiceLoopThread.start(
+                                (void * (*)(void*))AlignRadioServiceLoopAdapter,
+                                (void*)this);
 
-  if (!mRadio->start())
+  if (!mDevice->start())
     return false;
 
   for (size_t i = 0; i < mChans; i++) {
@@ -164,11 +192,11 @@ bool RadioInterface::start()
     recvBuffer[i]->reset();
   }
 
-  writeTimestamp = mRadio->initialWriteTimestamp();
-  readTimestamp = mRadio->initialReadTimestamp();
+  writeTimestamp = mDevice->initialWriteTimestamp();
+  readTimestamp = mDevice->initialReadTimestamp();
 
-  mRadio->updateAlignment(writeTimestamp-10000);
-  mRadio->updateAlignment(writeTimestamp-10000);
+  mDevice->updateAlignment(writeTimestamp-10000);
+  mDevice->updateAlignment(writeTimestamp-10000);
 
   mOn = true;
   LOG(INFO) << "Radio started";
@@ -184,29 +212,13 @@ bool RadioInterface::start()
  */
 bool RadioInterface::stop()
 {
-  if (!mOn || !mRadio->stop())
+  if (!mOn || !mDevice->stop())
     return false;
 
   mOn = false;
   return true;
 }
 
-#ifdef USRP1
-void *AlignRadioServiceLoopAdapter(RadioInterface *radioInterface)
-{
-  while (1) {
-    radioInterface->alignRadio();
-    pthread_testcancel();
-  }
-  return NULL;
-}
-
-void RadioInterface::alignRadio() {
-  sleep(60);
-  mRadio->updateAlignment(writeTimestamp+ (TIMESTAMP) 10000);
-}
-#endif
-
 void RadioInterface::driveTransmitRadio(std::vector<signalVector *> &bursts,
                                         std::vector<bool> &zeros)
 {
@@ -219,14 +231,15 @@ void RadioInterface::driveTransmitRadio(std::vector<signalVector *> &bursts,
   while (pushBuffer());
 }
 
-bool RadioInterface::driveReceiveRadio()
+int RadioInterface::driveReceiveRadio()
 {
   radioVector *burst = NULL;
 
   if (!mOn)
-    return false;
+    return 0;
 
-  pullBuffer();
+  if (pullBuffer() < 0)
+    return  -1;
 
   GSM::Time rcvClock = mClock.get();
   rcvClock.decTN(receiveOffset);
@@ -244,7 +257,7 @@ bool RadioInterface::driveReceiveRadio()
    * Pre-allocate head room for the largest correlation size
    * so we can later avoid a re-allocation and copy
    * */
-  size_t head = GSM::gRACHSynchSequence.size();
+  size_t head = GSM::gRACHSynchSequenceTS0.size();
 
   /*
    * Form receive bursts and pass up to transceiver. Use repeating
@@ -271,14 +284,14 @@ bool RadioInterface::driveReceiveRadio()
       burstSize = (symbolsPerSlot + (tN % 4 == 0)) * mSPSRx;
   }
 
-  return true;
+  return 1;
 }
 
 bool RadioInterface::isUnderrun()
 {
-  bool retVal = underrun;
-  underrun = false;
-
+  bool retVal;
+  /* atomically get previous value of "underrun" and set the var to false */
+  retVal = osmo_trx_sync_fetch_and_and(&underrun, false);
   return retVal;
 }
 
@@ -292,33 +305,34 @@ VectorFIFO* RadioInterface::receiveFIFO(size_t chan)
 
 double RadioInterface::setRxGain(double dB, size_t chan)
 {
-  return mRadio->setRxGain(dB, chan);
+  return mDevice->setRxGain(dB, chan);
 }
 
-double RadioInterface::getRxGain(size_t chan)
+double RadioInterface::setTxGain(double dB, size_t chan)
 {
-  return mRadio->getRxGain(chan);
+  return mDevice->setTxGain(dB, chan);
 }
 
 /* Receive a timestamped chunk from the device */
-void RadioInterface::pullBuffer()
+int RadioInterface::pullBuffer()
 {
   bool local_underrun;
-  size_t numRecv, segmentLen = recvBuffer[0]->getSegmentLen();
+  int numRecv;
+  size_t segmentLen = recvBuffer[0]->getSegmentLen();
 
   if (recvBuffer[0]->getFreeSegments() <= 0)
-    return;
+    return -1;
 
   /* Outer buffer access size is fixed */
-  numRecv = mRadio->readSamples(convertRecvBuffer,
+  numRecv = mDevice->readSamples(convertRecvBuffer,
                                 segmentLen,
                                 &overrun,
                                 readTimestamp,
                                 &local_underrun);
 
-  if (numRecv != segmentLen) {
+  if ((size_t) numRecv != segmentLen) {
           LOG(ALERT) << "Receive error " << numRecv;
-          return;
+          return -1;
   }
 
   for (size_t i = 0; i < mChans; i++) {
@@ -327,13 +341,15 @@ void RadioInterface::pullBuffer()
 			segmentLen * 2);
   }
 
-  underrun |= local_underrun;
+  osmo_trx_sync_or_and_fetch(&underrun, local_underrun);
   readTimestamp += numRecv;
+  return 0;
 }
 
 /* Send timestamped chunk to the device with arbitrary size */
 bool RadioInterface::pushBuffer()
 {
+  bool local_underrun;
   size_t numSent, segmentLen = sendBuffer[0]->getSegmentLen();
 
   if (sendBuffer[0]->getAvailSegments() < 1)
@@ -347,10 +363,11 @@ bool RadioInterface::pushBuffer()
   }
 
   /* Send the all samples in the send buffer */
-  numSent = mRadio->writeSamples(convertSendBuffer,
+  numSent = mDevice->writeSamples(convertSendBuffer,
                                  segmentLen,
-                                 &underrun,
+                                 &local_underrun,
                                  writeTimestamp);
+  osmo_trx_sync_or_and_fetch(&underrun, local_underrun);
   writeTimestamp += numSent;
 
   return true;

Transceiver52M/radioInterface.h

@@ -1,7 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
+* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribution.
 *
 * This use of this software may be subject to additional restrictions.
 * See the LEGAL file in the main directory for details.
@@ -36,7 +36,7 @@ protected:
 
   std::vector<VectorFIFO>  mReceiveFIFO;      ///< FIFO that holds receive  bursts
 
-  RadioDevice *mRadio;			      ///< the USRP object
+  RadioDevice *mDevice;			      ///< the USRP object
 
   size_t mSPSTx;
   size_t mSPSRx;
@@ -48,7 +48,7 @@ protected:
   std::vector<short *> convertRecvBuffer;
   std::vector<short *> convertSendBuffer;
   std::vector<float> powerScaling;
-  bool underrun;			      ///< indicates writes to USRP are too slow
+  int underrun;			              ///< indicates writes to USRP are too slow
   bool overrun;				      ///< indicates reads from USRP are too slow
   TIMESTAMP writeTimestamp;		      ///< sample timestamp of next packet written to USRP
   TIMESTAMP readTimestamp;		      ///< sample timestamp of next packet read from USRP
@@ -71,7 +71,7 @@ private:
   virtual bool pushBuffer(void);
 
   /** pull GSM bursts from the receive buffer */
-  virtual void pullBuffer(void);
+  virtual int pullBuffer(void);
 
 public:
 
@@ -79,12 +79,12 @@ public:
   bool start();
   bool stop();
 
-  /** intialization */
+  /** initialization */
   virtual bool init(int type);
   virtual void close();
 
   /** constructor */
-  RadioInterface(RadioDevice* wRadio, size_t tx_sps, size_t rx_sps,
+  RadioInterface(RadioDevice* wDevice, size_t tx_sps, size_t rx_sps,
                  size_t chans = 1, int receiveOffset = 3,
                  GSM::Time wStartTime = GSM::Time(0));
 
@@ -107,17 +107,14 @@ public:
   virtual bool tuneRx(double freq, size_t chan = 0);
 
   /** set receive gain */
-  double setRxGain(double dB, size_t chan = 0);
-
-  /** get receive gain */
-  double getRxGain(size_t chan = 0);
+  virtual double setRxGain(double dB, size_t chan = 0);
 
   /** drive transmission of GSM bursts */
   void driveTransmitRadio(std::vector<signalVector *> &bursts,
                           std::vector<bool> &zeros);
 
-  /** drive reception of GSM bursts */
-  bool driveReceiveRadio();
+  /** drive reception of GSM bursts. -1: Error. 0: Radio off. 1: Received something. */
+  int driveReceiveRadio();
 
   int setPowerAttenuation(int atten, size_t chan = 0);
 
@@ -127,26 +124,21 @@ public:
   /** returns the full-scale receive amplitude **/
   double fullScaleOutputValue();
 
-  /** set thread priority on current thread */
-  void setPriority(float prio = 0.5) { mRadio->setPriority(prio); }
-
   /** get transport window type of attached device */
-  enum RadioDevice::TxWindowType getWindowType() { return mRadio->getWindowType(); }
+  enum RadioDevice::TxWindowType getWindowType() { return mDevice->getWindowType(); }
+
+  /** Minimum latency that the device can achieve */
+  GSM::Time minLatency()  { return mDevice->minLatency(); }
 
-#if USRP1
 protected:
-
   /** drive synchronization of Tx/Rx of USRP */
   void alignRadio();
 
-  friend void *AlignRadioServiceLoopAdapter(RadioInterface*);
-#endif
-};
+  /** set transmit gain */
+  virtual double setTxGain(double dB, size_t chan = 0);
 
-#if USRP1
-/** synchronization thread loop */
-void *AlignRadioServiceLoopAdapter(RadioInterface*);
-#endif
+  friend void *AlignRadioServiceLoopAdapter(RadioInterface*);
+};
 
 class RadioInterfaceResamp : public RadioInterface {
 private:
@@ -154,10 +146,10 @@ private:
   signalVector *outerRecvBuffer;
 
   bool pushBuffer();
-  void pullBuffer();
+  int pullBuffer();
 
 public:
-  RadioInterfaceResamp(RadioDevice* wRadio, size_t tx_sps, size_t rx_sps);
+  RadioInterfaceResamp(RadioDevice* wDevice, size_t tx_sps, size_t rx_sps);
   ~RadioInterfaceResamp();
 
   bool init(int type);
@@ -167,7 +159,8 @@ public:
 class RadioInterfaceMulti : public RadioInterface {
 private:
   bool pushBuffer();
-  void pullBuffer();
+  int pullBuffer();
+  virtual double setTxGain(double dB, size_t chan);
 
   signalVector *outerSendBuffer;
   signalVector *outerRecvBuffer;
@@ -189,5 +182,5 @@ public:
 
   bool tuneTx(double freq, size_t chan);
   bool tuneRx(double freq, size_t chan);
-  double setRxGain(double dB, size_t chan);
+  virtual double setRxGain(double dB, size_t chan);
 };