lms: Fix coding style

In Change-Id Ib2fca81b76d027b08e2891056fa076d071597783 we introduced
some coding style violations.  Let's make newly-added code follows
standard Osmocom coding style.

Change-Id: Ib7ddd275014f03a2eed3cddc02b1356e2b00c0bc

.gitignore

@@ -18,7 +18,6 @@ tests/CommonLibs/URLEncodeTest
 tests/CommonLibs/VectorTest
 tests/CommonLibs/PRBSTest
 tests/Transceiver52M/convolve_test
-tests/Transceiver52M/LMSDeviceTest
 
 # automake/autoconf
 *.in
@@ -52,14 +51,3 @@ 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

@@ -0,0 +1,127 @@
+#
+# 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

@@ -1,7 +1,6 @@
 /*
 * 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/BitVector.h

@@ -1,8 +1,6 @@
 /*
 * 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

@@ -1,8 +1,6 @@
 /*
 * 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.
 *
@@ -55,7 +53,7 @@ template <class T, class Fifo=PointerFIFO> class InterthreadQueue {
 
 	protected:
 
-	Fifo mQ;
+	Fifo mQ;	
 	mutable Mutex mLock;
 	mutable Signal mWriteSignal;
 
@@ -162,7 +160,7 @@ template <class T, class Fifo=PointerFIFO> class InterthreadQueue2 {
 
 	protected:
 
-	Fifo mQ;
+	Fifo mQ;	
 	mutable Mutex mLock;
 	mutable Signal mWriteSignal;
 
@@ -258,7 +256,7 @@ template <class T, class Fifo=PointerFIFO> class InterthreadQueue2 {
 		// This recurs (and the InterthreadQueue fills up with data)
 		// until the read thread's accumulated temporary priority causes it to
 		// get a second pre-emptive activation over the writing thread,
-		// resulting in bursts of activity by the read thread.
+		// resulting in bursts of activity by the read thread. 
 		{ ScopedLock lock(mLock);
 		  mQ.put(val);
 		}
@@ -283,7 +281,7 @@ template <class T> class InterthreadQueueWithWait {
 
 	protected:
 
-	PointerFIFO mQ;
+	PointerFIFO mQ;	
 	mutable Mutex mLock;
 	mutable Signal mWriteSignal;
 	mutable Signal mReadSignal;

CommonLibs/LinkedLists.cpp

@@ -1,7 +1,6 @@
 /*
 * 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.
@@ -30,25 +29,6 @@
 #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

@@ -1,10 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* 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 distribuion.
+* 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 the terms of the GNU Affero Public License.
 * See the COPYING file in the main directory for details.
@@ -73,7 +70,6 @@ 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

@@ -1,7 +1,6 @@
 /*
 * 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.
@@ -36,6 +35,8 @@
 
 using namespace std;
 
+Mutex gLogToLock;
+
 std::ostream& operator<<(std::ostream& os, std::ostringstream& ss)
 {
 	return os << ss.str();
@@ -43,14 +44,13 @@ std::ostream& operator<<(std::ostream& os, std::ostringstream& ss)
 
 Log::~Log()
 {
-	int old_state;
 	int mlen = mStream.str().size();
 	int neednl = (mlen==0 || mStream.str()[mlen-1] != '\n');
 	const char *fmt = neednl ? "%s\n" : "%s";
-
-	log_mutex_lock_canceldisable(&old_state);
+	ScopedLock lock(gLogToLock);
+	// The COUT() macro prevents messages from stomping each other but adds uninteresting thread numbers,
+	// so just use std::cout.
 	LOGPSRC(mCategory, mPriority, filename, line, fmt, mStream.str().c_str());
-	log_mutex_unlock_canceldisable(old_state);
 }
 
 ostringstream& Log::get()

CommonLibs/Logger.h

@@ -2,8 +2,6 @@
 * 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.
 *
@@ -58,9 +56,6 @@ extern "C" {
 #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.
 	This object is NOT the global logger;

CommonLibs/Makefile.am

@@ -30,27 +30,23 @@ noinst_LTLIBRARIES = libcommon.la
 libcommon_la_SOURCES = \
 	BitVector.cpp \
 	LinkedLists.cpp \
+	Sockets.cpp \
 	Threads.cpp \
 	Timeval.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 \
-	Utils.h \
-	trx_rate_ctr.h \
 	trx_vty.h \
 	debug.h \
-	osmo_signal.h \
 	config_defs.h

CommonLibs/PRBS.h

@@ -1,8 +1,6 @@
 /*
  * 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

@@ -0,0 +1,287 @@
+/*
+* 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

@@ -0,0 +1,173 @@
+/*
+* 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

@@ -1,7 +1,6 @@
 /*
 * 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.
@@ -25,17 +24,11 @@
 */
 
 
-#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;
@@ -109,25 +102,6 @@ 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)
 {
@@ -136,10 +110,8 @@ 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);
-	if (mStackSize != 0) {
-		res = pthread_attr_setstacksize(&mAttrib, mStackSize);
-		assert(!res);
-	}
+	res = pthread_attr_setstacksize(&mAttrib, mStackSize);
+	assert(!res);
 	res = pthread_create(&mThread, &mAttrib, task, arg);
 	assert(!res);
 }

CommonLibs/Threads.h

@@ -1,8 +1,6 @@
 /*
 * 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.
 *
@@ -57,7 +55,7 @@ void unlockCout();		///< call after writing cout
 #define OBJDCOUT(text) {}
 #else
 #define DCOUT(text) { COUT(__FILE__ << ":" << __LINE__ << " " << text); }
-#define OBJDCOUT(text) { DCOUT(this << " " << text); }
+#define OBJDCOUT(text) { DCOUT(this << " " << text); } 
 #endif
 //@}
 //@}
@@ -143,9 +141,6 @@ 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 {
 
@@ -155,12 +150,12 @@ class Thread {
 	pthread_attr_t mAttrib;
 	// FIXME -- Can this be reduced now?
 	size_t mStackSize;
-
+	
 
 	public:
 
 	/** Create a thread in a non-running state. */
-	Thread(size_t wStackSize = 0):mThread((pthread_t)0) {
+	Thread(size_t wStackSize = (65536*4)):mThread((pthread_t)0) {
 		pthread_attr_init(&mAttrib);	// (pat) moved this here.
 		mStackSize=wStackSize;
 	}

CommonLibs/Timeval.cpp

@@ -1,7 +1,6 @@
 /*
 * 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.
@@ -28,49 +27,43 @@
 
 #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;
-	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;
+	mTimeval.tv_usec += msec*1000;
+	mTimeval.tv_sec += sec;
+	if (mTimeval.tv_usec>1000000) {
+		mTimeval.tv_usec -= 1000000;
+		mTimeval.tv_sec += 1;
 	}
 }
 
 
 struct timespec Timeval::timespec() const
 {
-	return mTimespec;
+	struct timespec retVal;
+	retVal.tv_sec = mTimeval.tv_sec;
+	retVal.tv_nsec = 1000 * (long)mTimeval.tv_usec;
+	return retVal;
 }
 
 
 bool Timeval::passed() const
 {
 	Timeval nowTime;
-	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;
+	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;
 	return false;
 }
 
 double Timeval::seconds() const
 {
-	return ((double)mTimespec.tv_sec) + 1e-9*((double)mTimespec.tv_nsec);
+	return ((double)mTimeval.tv_sec) + 1e-6*((double)mTimeval.tv_usec);
 }
 
 
@@ -79,25 +72,24 @@ long Timeval::delta(const Timeval& other) const
 {
 	// 2^31 milliseconds is just over 4 years.
 	int32_t deltaS = other.sec() - sec();
-	int32_t deltaNs = other.nsec() - nsec();
-	return 1000*deltaS + deltaNs/1000000;
+	int32_t deltaUs = other.usec() - usec();
+	return 1000*deltaS + deltaUs/1000;
 }
-
+	
 
 
 
 ostream& operator<<(ostream& os, const Timeval& tv)
 {
-	ios_base::fmtflags flags_backup = os.setf( ios::fixed, ios::floatfield );
+	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/1000;
+	os << ts.tv_sec << "," << ts.tv_nsec;
 	return os;
 }
 

CommonLibs/Timeval.h

@@ -1,8 +1,6 @@
 /*
 * 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.
 *
@@ -44,12 +42,12 @@ class Timeval {
 
 	private:
 
-	struct timespec mTimespec;
+	struct timeval mTimeval;
 
 	public:
 
-	/** Set the value to current time. */
-	void now();
+	/** Set the value to gettimeofday. */
+	void now() { gettimeofday(&mTimeval,NULL); }
 
 	/** Set the value to gettimeofday plus an offset. */
 	void future(unsigned ms);
@@ -57,18 +55,16 @@ class Timeval {
 	//@{
 	Timeval(unsigned sec, unsigned usec)
 	{
-		mTimespec.tv_sec = sec;
-		mTimespec.tv_nsec = usec*1000;
+		mTimeval.tv_sec = sec;
+		mTimeval.tv_usec = usec;
 	}
 
 	Timeval(const struct timeval& wTimeval)
-	{
-		mTimespec.tv_sec = wTimeval.tv_sec;
-		mTimespec.tv_nsec = wTimeval.tv_sec*1000;
-	}
+		:mTimeval(wTimeval)
+	{}
 
 	/**
-		Create a Timespec offset into the future.
+		Create a Timeval offset into the future.
 		@param offset milliseconds
 	*/
 	Timeval(unsigned offset=0) { future(offset); }
@@ -80,9 +76,8 @@ class Timeval {
 	/** Return total seconds. */
 	double seconds() const;
 
-	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; }
+	uint32_t sec() const { return mTimeval.tv_sec; }
+	uint32_t usec() const { return mTimeval.tv_usec; }
 
 	/** Return differnce from other (other-self), in ms. */
 	long delta(const Timeval& other) const;
@@ -93,11 +88,11 @@ class Timeval {
 	/** Remaining time in ms. */
 	long remaining() const { return -elapsed(); }
 
-	/** Return true if the time has passed, as per clock_gettime(CLOCK_REALTIME). */
+	/** Return true if the time has passed, as per gettimeofday. */
 	bool passed() const;
 
 	/** Add a given number of minutes to the time. */
-	void addMinutes(unsigned minutes) { mTimespec.tv_sec += minutes*60; }
+	void addMinutes(unsigned minutes) { mTimeval.tv_sec += minutes*60; }
 
 };
 

CommonLibs/Utils.cpp

@@ -1,38 +0,0 @@
-/*
- * 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

@@ -1,26 +0,0 @@
-/*
- * 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

@@ -2,8 +2,6 @@
 /*
 * 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.
 *
@@ -34,14 +32,11 @@
 #include <string.h>
 #include <iostream>
 #include <assert.h>
-#include <stdlib.h>
-
 // We cant 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.
@@ -65,8 +60,6 @@ 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:
 
@@ -92,19 +85,9 @@ template <class T> class Vector {
 	/** Change the size of the Vector, discarding content. */
 	void resize(size_t newSize)
 	{
-		if (mData!=NULL) {
-			if (mFreeFunc)
-				mFreeFunc(mData);
-			else
-				delete[] mData;
-		}
+		if (mData!=NULL) delete[] mData;
 		if (newSize==0) mData=NULL;
-		else {
-			if (mAllocFunc)
-				mData = (T*) mAllocFunc(newSize);
-			else
-				mData = new T[newSize];
-		}
+		else mData = new T[newSize];
 		mStart = mData;
 		mEnd = mStart + newSize;
 	}
@@ -124,7 +107,7 @@ template <class T> class Vector {
 	void clone(const Vector<T>& other)
 	{
 		resize(other.size());
-		other.copyTo(*this);
+		memcpy(mData,other.mStart,other.bytes());
 	}
 
 
@@ -133,31 +116,29 @@ template <class T> class Vector {
 	//@{
 
 	/** Build an empty Vector of a given size. */
-	Vector(size_t wSize=0, vector_alloc_func wAllocFunc=NULL, vector_free_func wFreeFunc=NULL)
-		:mData(NULL), mAllocFunc(wAllocFunc), mFreeFunc(wFreeFunc)
-	{ resize(wSize); }
+	Vector(size_t wSize=0):mData(NULL) { resize(wSize); }
 
 	/** Build a Vector by moving another. */
 	Vector(Vector<T>&& other)
-		:mData(other.mData),mStart(other.mStart),mEnd(other.mEnd), mAllocFunc(other.mAllocFunc),  mFreeFunc(other.mFreeFunc)
+		:mData(other.mData),mStart(other.mStart),mEnd(other.mEnd)
 	{ other.mData=NULL; }
 
 	/** Build a Vector by copying another. */
-	Vector(const Vector<T>& other):mData(NULL), mAllocFunc(other.mAllocFunc), mFreeFunc(other.mFreeFunc) { clone(other); }
+	Vector(const Vector<T>& other):mData(NULL) { clone(other); }
 
 	/** Build a Vector with explicit values. */
-	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)
+	Vector(T* wData, T* wStart, T* wEnd)
+		:mData(wData),mStart(wStart),mEnd(wEnd)
 	{ }
 
 	/** Build a vector from an existing block, NOT to be deleted upon destruction. */
-	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)
+	Vector(T* wStart, size_t span)
+		:mData(NULL),mStart(wStart),mEnd(wStart+span)
 	{ }
 
 	/** Build a Vector by concatenation. */
-	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)
+	Vector(const Vector<T>& other1, const Vector<T>& other2)
+		:mData(NULL)
 	{
 		resize(other1.size()+other2.size());
 		memcpy(mStart, other1.mStart, other1.bytes());
@@ -181,8 +162,6 @@ template <class T> class Vector {
 		mData=other.mData;
 		mStart=other.mStart;
 		mEnd=other.mEnd;
-		mAllocFunc=other.mAllocFunc;
-		mFreeFunc=other.mFreeFunc;
 		other.mData=NULL;
 	}
 
@@ -225,15 +204,10 @@ template <class T> class Vector {
 	*/
 	void copyToSegment(Vector<T>& other, size_t start, size_t span) const
 	{
-		unsigned int i;
-		T* dst = other.mStart + start;
-		T* src = mStart;
-		assert(dst+span<=other.mEnd);
+		T* base = other.mStart + start;
+		assert(base+span<=other.mEnd);
 		assert(mStart+span<=mEnd);
-		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)); */
+		memcpy(base,mStart,span*sizeof(T));
 	}
 
 	/** Copy all of this Vector to a segment of another Vector. */
@@ -308,7 +282,7 @@ template <class T> class Vector {
 	T* end() { return mEnd; }
 	bool isOwner() { return !!mData; }	// Do we own any memory ourselves?
 	//@}
-
+	
 
 };
 

CommonLibs/debug.c

@@ -1,28 +1,3 @@
-/*
- * 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"
@@ -35,21 +10,9 @@ static const struct log_info_cat default_categories[] = {
 		.color = NULL,
 		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
-	[DTRXCTRL] = {
-			.name = "DTRXCTRL",
-			.description = "TRX CTRL interface",
-			.color = "\033[1;33m",
-			.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",
+		.description = "LimeSuite category",
 		.color = NULL,
 		.enabled = 1, .loglevel = LOGL_NOTICE,
 	},
@@ -59,49 +22,3 @@ const struct log_info log_info = {
 	.cat = default_categories,
 	.num_cat = ARRAY_SIZE(default_categories),
 };
-
-pthread_mutex_t log_mutex;
-
-bool log_mutex_init() {
-	int rc;
-	pthread_mutexattr_t attr;
-
-	if ((rc = pthread_mutexattr_init(&attr))) {
-		fprintf(stderr, "pthread_mutexattr_init() failed: %d\n", rc);
-		return false;
-	}
-	if ((rc = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE))) {
-		fprintf(stderr, "pthread_mutexattr_settype() failed: %d\n", rc);
-		return false;
-	}
-	if ((rc = pthread_mutex_init(&log_mutex, &attr))) {
-		fprintf(stderr, "pthread_mutex_init() failed: %d\n", rc);
-		return false;
-	}
-	if ((rc = pthread_mutexattr_destroy(&attr))) {
-		fprintf(stderr, "pthread_mutexattr_destroy() failed: %d\n", rc);
-		return false;
-	}
-	return true;
-	/* FIXME: do we need to call pthread_mutex_destroy() during process exit? */
-}
-
-/* If called inside a C++ destructor, use log_mutex_(un)lock_canceldisable() APIs instead.
-   See osmo-trx commit 86be40b4eb762d5c12e8e3f7388ca9f254e77b36 for more information */
-void log_mutex_lock() {
-	OSMO_ASSERT(!pthread_mutex_lock(&log_mutex));
-}
-
-void log_mutex_unlock() {
-	OSMO_ASSERT(!pthread_mutex_unlock(&log_mutex));
-}
-
-void log_mutex_lock_canceldisable(int *st) {
-	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, st);
-	log_mutex_lock();
-}
-
-void log_mutex_unlock_canceldisable(int st) {
-	log_mutex_unlock();
-	pthread_setcancelstate(st, NULL);
-}

CommonLibs/debug.h

@@ -1,35 +1,9 @@
 #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,
-	DTRXCTRL,
-	DDEV,
 	DLMS,
 };
-
-
-bool log_mutex_init();
-void log_mutex_lock();
-void log_mutex_unlock();
-void log_mutex_lock_canceldisable(int *st);
-void log_mutex_unlock_canceldisable(int st);
-
-#define CLOGC(category, level, fmt, args...) do { \
-	log_mutex_lock(); \
-	LOGP(category, level, "[tid=%lu] " fmt, pthread_self(), ##args);  \
-	log_mutex_unlock(); \
-} while(0)
-
-#define CLOGCHAN(chan, category, level, fmt, args...) do { \
-	log_mutex_lock(); \
-	LOGP(category, level, "[tid=%lu][chan=%lu] " fmt, pthread_self(), chan, ##args);  \
-	log_mutex_unlock(); \
-} while(0)

CommonLibs/osmo_signal.h

@@ -1,57 +0,0 @@
-/* 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

@@ -1,336 +0,0 @@
-/*
- * 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 conditons (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

@@ -1,30 +0,0 @@
-#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

@@ -1,24 +1,20 @@
 /*
- * Copyright (C) 2018-2019 sysmocom - s.f.m.c. GmbH
+ * Copyright (C) 2012-2017 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
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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.
+ * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU Affero General Public License
+ * You should have received a copy of the GNU 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>
@@ -35,7 +31,6 @@
 #include <osmocom/vty/vty.h>
 #include <osmocom/vty/misc.h>
 
-#include "trx_rate_ctr.h"
 #include "trx_vty.h"
 #include "../config.h"
 
@@ -44,7 +39,7 @@ static struct trx_ctx* g_trx_ctx;
 static const struct value_string clock_ref_names[] = {
 	{ REF_INTERNAL,	"internal" },
 	{ REF_EXTERNAL,	"external" },
-	{ REF_GPS,	"gpsdo" },
+	{ REF_GPS,	"gspdo" },
 	{ 0,		NULL }
 };
 
@@ -241,16 +236,12 @@ DEFUN(cfg_multi_arfcn, cfg_multi_arfcn_cmd,
 
 	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);
+	} else if (strcmp("enable", argv[0]) == 0) {
+		trx->cfg.multi_arfcn = true;
+	} else {
 		return CMD_WARNING;
 	}
 
-	trx->cfg.multi_arfcn = true;
 	return CMD_SUCCESS;
 }
 
@@ -313,21 +304,6 @@ DEFUN(cfg_egprs, cfg_egprs_cmd,
 	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"
@@ -340,18 +316,6 @@ DEFUN(cfg_rt_prio, cfg_rt_prio_cmd,
 	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_cmd,
 	"filler dummy",
 	"Enable C0 filler table\n"
@@ -364,108 +328,6 @@ DEFUN(cfg_filler, cfg_filler_cmd,
 	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"
@@ -477,12 +339,7 @@ DEFUN(cfg_chan, cfg_chan_cmd,
 	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);
@@ -560,20 +417,16 @@ static int config_write_trx(struct vty *vty)
 		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.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);
+			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);
+			vty_out(vty, " tx-path %s%s", chan->tx_path, VTY_NEWLINE);
 	}
 
 	return CMD_SUCCESS;
@@ -601,10 +454,8 @@ static void trx_dump_vty(struct vty *vty, struct trx_ctx *trx)
 	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];
@@ -713,12 +564,8 @@ int trx_vty_init(struct trx_ctx* trx)
 	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_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);

CommonLibs/trx_vty.h

@@ -6,10 +6,7 @@
 
 extern struct vty_app_info g_vty_info;
 
-/* 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)
@@ -60,10 +57,8 @@ struct trx_ctx {
 		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;

GSM/GSMCommon.cpp

@@ -2,8 +2,6 @@
 * 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.
 *
@@ -56,10 +54,7 @@ const BitVector GSM::gEdgeTrainingSequence[] = {
 
 const BitVector GSM::gDummyBurst("0001111101101110110000010100100111000001001000100000001111100011100010111000101110001010111010010100011001100111001111010011111000100101111101010000");
 
-/* 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 */
+const BitVector GSM::gRACHSynchSequence("01001011011111111001100110101010001111000");
 
 //                               |-head-||---------midamble----------------------||--------------data----------------||t|
 const BitVector GSM::gRACHBurst("0011101001001011011111111001100110101010001111000110111101111110000111001001010110011000");

GSM/GSMCommon.h

@@ -2,8 +2,6 @@
 /*
 * 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.
 *
@@ -54,9 +52,7 @@ extern const BitVector gEdgeTrainingSequence[];
 extern const BitVector gDummyBurst;
 
 /** Random access burst synch. sequence */
-extern const BitVector gRACHSynchSequenceTS0;
-extern const BitVector gRACHSynchSequenceTS1;
-extern const BitVector gRACHSynchSequenceTS2;
+extern const BitVector gRACHSynchSequence;
 /** Random access burst synch. sequence, GSM 05.02 5.2.7 */
 extern const BitVector gRACHBurst;
 
@@ -168,7 +164,7 @@ class Time {
         unsigned newTN = (mTN + other.mTN) % 8;
 		uint64_t newFN = (mFN+other.mFN + (mTN + other.mTN)/8) % gHyperframe;
         return Time(newFN,newTN);
-    }
+    } 
 
 	int operator-(const Time& other) const
 	{

INSTALLATION

@@ -0,0 +1,19 @@
+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

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

README

@@ -0,0 +1,116 @@
+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

@@ -1,66 +0,0 @@
-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

@@ -1,11 +1,9 @@
 /*
  * Polyphase channelizer
- *
+ * 
  * 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
@@ -65,7 +63,7 @@ float *Channelizer::outputBuffer(size_t chan) const
 	return hInputs[chan];
 }
 
-/*
+/* 
  * Implementation based on material found in:
  *
  * "harris, fred, Multirate Signal Processing, Upper Saddle River, NJ,
@@ -80,8 +78,8 @@ bool Channelizer::rotate(const float *in, size_t len)
 
 	deinterleave(in, len, hInputs, blockLen, m);
 
-	/*
-	 * Convolve through filterbank while applying and saving sample history
+	/* 
+	 * Convolve through filterbank while applying and saving sample history 
 	 */
 	for (size_t i = 0; i < m; i++) {
 		memcpy(&hInputs[i][2 * -hLen], hist[i], hSize);
@@ -90,7 +88,7 @@ bool Channelizer::rotate(const float *in, size_t len)
 		convolve_real(hInputs[i], blockLen,
 			      subFilters[i], hLen,
 			      hOutputs[i], blockLen,
-			      0, blockLen);
+			      0, blockLen, 1, 0);
 	}
 
 	cxvec_fft(fftHandle);

Transceiver52M/ChannelizerBase.cpp

@@ -1,10 +1,8 @@
 /*
  * Polyphase channelizer
- *
+ * 
  * Copyright (C) 2012-2014 Tom Tsou <tom@tsou.cc>
- * Copyright (C) 2015 Ettus Research LLC
- *
- * SPDX-License-Identifier: AGPL-3.0+
+ * Copyright (C) 2015 Ettus Research LLC 
  *
  * 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
@@ -57,10 +55,10 @@ static void reverse(float *buf, size_t len)
 	}
 }
 
-/*
+/* 
  * Create polyphase filterbank
  *
- * Implementation based material found in,
+ * Implementation based material found in, 
  *
  * "harris, fred, Multirate Signal Processing, Upper Saddle River, NJ,
  *     Prentice Hall, 2006."
@@ -72,7 +70,7 @@ bool ChannelizerBase::initFilters()
 	float sum = 0.0f, scale = 0.0f;
 	float midpt = (float) (protoLen - 1.0) / 2.0;
 
-	/*
+	/* 
 	 * Allocate 'M' partition filters and the temporary prototype
 	 * filter. Coefficients are real only and must be 16-byte memory
 	 * aligned for SSE usage.
@@ -92,7 +90,7 @@ bool ChannelizerBase::initFilters()
 				memalign(16, hLen * 2 * sizeof(float));
 	}
 
-	/*
+	/* 
 	 * Generate the prototype filter with a Blackman-harris window.
 	 * Scale coefficients with DC filter gain set to unity divided
 	 * by the number of channels.
@@ -112,7 +110,7 @@ bool ChannelizerBase::initFilters()
 	}
 	scale = (float) m / sum;
 
-	/*
+	/* 
 	 * Populate partition filters and reverse the coefficients per
 	 * convolution requirements.
 	 */
@@ -176,7 +174,7 @@ bool ChannelizerBase::mapBuffers()
 	return true;
 }
 
-/*
+/* 
  * Setup filterbank internals
  */
 bool ChannelizerBase::init()
@@ -224,12 +222,11 @@ bool ChannelizerBase::checkLen(size_t innerLen, size_t outerLen)
 	return true;
 }
 
-/*
+/* 
  * Setup channelizer paramaters
  */
 ChannelizerBase::ChannelizerBase(size_t m, size_t blockLen, size_t hLen)
-	: subFilters(NULL), hInputs(NULL), hOutputs(NULL), hist(NULL),
-	  fftInput(NULL), fftOutput(NULL), fftHandle(NULL)
+	: fftInput(NULL), fftOutput(NULL), fftHandle(NULL)
 {
 	this->m = m;
 	this->hLen = hLen;
@@ -242,7 +239,7 @@ ChannelizerBase::~ChannelizerBase()
 
 	for (size_t i = 0; i < m; i++) {
 		free(subFilters[i]);
-		delete[] hist[i];
+		delete hist[i];
 	}
 
 	fft_free(fftInput);

Transceiver52M/Makefile.am

@@ -23,9 +23,16 @@ include $(top_srcdir)/Makefile.common
 
 SUBDIRS = arch device
 
-AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/arch/common -I${srcdir}/device/common
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/arch/common -I${srcdir}/device
 AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
-AM_CFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS)
+
+rev2dir = $(datadir)/usrp/rev2
+rev4dir = $(datadir)/usrp/rev4
+
+dist_rev2_DATA = std_inband.rbf
+dist_rev4_DATA = std_inband.rbf
+
+EXTRA_DIST = README
 
 noinst_LTLIBRARIES = libtransceiver_common.la
 
@@ -39,8 +46,7 @@ COMMON_SOURCES = \
 	Transceiver.cpp \
 	ChannelizerBase.cpp \
 	Channelizer.cpp \
-	Synthesis.cpp \
-	proto_trxd.c
+	Synthesis.cpp
 
 libtransceiver_common_la_SOURCES = \
 	$(COMMON_SOURCES) \
@@ -60,8 +66,7 @@ noinst_HEADERS = \
 	Resampler.h \
 	ChannelizerBase.h \
 	Channelizer.h \
-	Synthesis.h \
-	proto_trxd.h
+	Synthesis.h
 
 COMMON_LDADD = \
 	libtransceiver_common.la \

Transceiver52M/README

@@ -0,0 +1,35 @@
+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

@@ -2,8 +2,6 @@
  * 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
@@ -53,7 +51,7 @@ void Resampler::initFilters(float bw)
 	float cutoff;
 	float sum = 0.0f, scale = 0.0f;
 
-	/*
+	/* 
 	 * Allocate partition filters and the temporary prototype filter
 	 * according to numerator of the rational rate. Coefficients are
 	 * real only and must be 16-byte memory aligned for SSE usage.
@@ -62,10 +60,10 @@ void Resampler::initFilters(float bw)
 	for (auto &part : partitions)
 		part = (complex<float> *) memalign(16, filt_len * sizeof(complex<float>));
 
-	/*
+	/* 
 	 * Generate the prototype filter with a Blackman-harris window.
 	 * Scale coefficients with DC filter gain set to unity divided
-	 * by the number of filter partitions.
+	 * by the number of filter partitions. 
 	 */
 	float a0 = 0.35875;
 	float a1 = 0.48829;
@@ -139,13 +137,13 @@ int Resampler::rotate(const float *in, size_t in_len, float *out, size_t out_len
 
 	/* Generate output from precomputed input/output paths */
 	for (size_t i = 0; i < out_len; i++) {
-		n = in_index[i];
-		path = out_path[i];
+		n = in_index[i]; 
+		path = out_path[i]; 
 
 		convolve_real(in, in_len,
 			      reinterpret_cast<float *>(partitions[path]),
 			      filt_len, &out[2 * i], out_len - i,
-			      n, 1);
+			      n, 1, 1, 0);
 	}
 
 	return out_len;

Transceiver52M/Resampler.h

@@ -2,8 +2,6 @@
  * 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
@@ -30,7 +28,7 @@ public:
 	/* Constructor for rational sample rate conversion
 	 *   @param p numerator of resampling ratio
 	 *   @param q denominator of resampling ratio
-	 *   @param filt_len length of each polyphase subfilter
+	 *   @param filt_len length of each polyphase subfilter 
 	 */
 	Resampler(size_t p, size_t q, size_t filt_len = 16);
 	~Resampler();
@@ -60,7 +58,7 @@ public:
 	int rotate(const float *in, size_t in_len, float *out, size_t out_len);
 
 	/* Get filter length
-	 *   @return number of taps in each filter partition
+	 *   @return number of taps in each filter partition 
 	 */
 	size_t len();
 

Transceiver52M/Synthesis.cpp

@@ -1,11 +1,9 @@
 /*
  * Polyphase synthesis filter
- *
+ * 
  * 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
@@ -76,7 +74,7 @@ bool Synthesis::resetBuffer(size_t chan)
 	return true;
 }
 
-/*
+/* 
  * Implementation based on material found in:
  *
  * "harris, fred, Multirate Signal Processing, Upper Saddle River, NJ,
@@ -94,8 +92,8 @@ bool Synthesis::rotate(float *out, size_t len)
 
 	cxvec_fft(fftHandle);
 
-	/*
-	 * Convolve through filterbank while applying and saving sample history
+	/* 
+	 * Convolve through filterbank while applying and saving sample history 
 	 */
 	for (size_t i = 0; i < m; i++) {
 		memcpy(&hInputs[i][2 * -hLen], hist[i], hSize);
@@ -104,7 +102,7 @@ bool Synthesis::rotate(float *out, size_t len)
 		convolve_real(hInputs[i], blockLen,
 			      subFilters[i], hLen,
 			      hOutputs[i], blockLen,
-			      0, blockLen);
+			      0, blockLen, 1, 0);
 	}
 
 	/* Interleave into output vector */

Transceiver52M/Transceiver.cpp

@@ -1,8 +1,6 @@
 /*
 * Copyright 2008, 2009, 2010 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.
 *
@@ -24,21 +22,11 @@
 */
 
 #include <stdio.h>
-#include <netinet/in.h>
 #include <iomanip>      // std::setprecision
 #include <fstream>
 #include "Transceiver.h"
 #include <Logger.h>
 
-extern "C" {
-#include "osmo_signal.h"
-#include "proto_trxd.h"
-
-#include <osmocom/core/utils.h>
-#include <osmocom/core/socket.h>
-#include <osmocom/core/bits.h>
-}
-
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
@@ -123,12 +111,12 @@ Transceiver::Transceiver(int wBasePort,
                          size_t tx_sps, size_t rx_sps, size_t chans,
                          GSM::Time wTransmitLatency,
                          RadioInterface *wRadioInterface,
-                         double wRssiOffset, int wStackSize)
+                         double wRssiOffset)
   : mBasePort(wBasePort), mLocalAddr(TRXAddress), mRemoteAddr(GSMcoreAddress),
-    mClockSocket(-1), mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface),
-    rssiOffset(wRssiOffset), stackSize(wStackSize),
-    mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans), mExtRACH(false), mEdge(false),
-    mOn(false), mForceClockInterface(false),
+    mClockSocket(TRXAddress, wBasePort, GSMcoreAddress, wBasePort + 100),
+    mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface),
+    rssiOffset(wRssiOffset),
+    mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans), mEdge(false), mOn(false), mForceClockInterface(false),
     mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelayAB(0), mMaxExpectedDelayNB(0),
     mWriteBurstToDiskMask(0)
 {
@@ -147,19 +135,14 @@ Transceiver::~Transceiver()
 
   sigProcLibDestroy();
 
-  if (mClockSocket >= 0)
-    close(mClockSocket);
-
   for (size_t i = 0; i < mChans; i++) {
     mControlServiceLoopThreads[i]->cancel();
     mControlServiceLoopThreads[i]->join();
     delete mControlServiceLoopThreads[i];
 
     mTxPriorityQueues[i].clear();
-    if (mCtrlSockets[i] >= 0)
-      close(mCtrlSockets[i]);
-    if (mDataSockets[i] >= 0)
-      close(mDataSockets[i]);
+    delete mCtrlSockets[i];
+    delete mDataSockets[i];
   }
 }
 
@@ -172,8 +155,7 @@ Transceiver::~Transceiver()
  * are still expected to report clock indications through control channel
  * activity.
  */
-bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay,
-                       bool edge, bool ext_rach)
+bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay, bool edge)
 {
   int d_srcport, d_dstport, c_srcport, c_dstport;
 
@@ -187,11 +169,10 @@ bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay,
     return false;
   }
 
-  mExtRACH = ext_rach;
   mEdge = edge;
 
-  mDataSockets.resize(mChans, -1);
-  mCtrlSockets.resize(mChans, -1);
+  mDataSockets.resize(mChans);
+  mCtrlSockets.resize(mChans);
   mControlServiceLoopThreads.resize(mChans);
   mTxPriorityQueueServiceLoopThreads.resize(mChans);
   mRxServiceLoopThreads.resize(mChans);
@@ -199,37 +180,20 @@ bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay,
   mTxPriorityQueues.resize(mChans);
   mReceiveFIFO.resize(mChans);
   mStates.resize(mChans);
-  mVersionTRXD.resize(mChans);
 
   /* Filler table retransmissions - support only on channel 0 */
   if (filler == FILLER_DUMMY)
     mStates[0].mRetrans = true;
 
   /* Setup sockets */
-  mClockSocket = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP,
-				    mLocalAddr.c_str(), mBasePort,
-				    mRemoteAddr.c_str(), mBasePort + 100,
-				    OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT);
-
   for (size_t i = 0; i < mChans; i++) {
     c_srcport = mBasePort + 2 * i + 1;
     c_dstport = mBasePort + 2 * i + 101;
     d_srcport = mBasePort + 2 * i + 2;
     d_dstport = mBasePort + 2 * i + 102;
 
-    mCtrlSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP,
-                                      mLocalAddr.c_str(), c_srcport,
-                                      mRemoteAddr.c_str(), c_dstport,
-				      OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT);
-    if (mCtrlSockets[i] < 0)
-      return false;
-
-    mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP,
-                                      mLocalAddr.c_str(), d_srcport,
-                                      mRemoteAddr.c_str(), d_dstport,
-				      OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT);
-    if (mCtrlSockets[i] < 0)
-      return false;
+    mCtrlSockets[i] = new UDPSocket(mLocalAddr.c_str(), c_srcport, mRemoteAddr.c_str(), c_dstport);
+    mDataSockets[i] = new UDPSocket(mLocalAddr.c_str(), d_srcport, mRemoteAddr.c_str(), d_dstport);
   }
 
   /* Randomize the central clock */
@@ -241,12 +205,10 @@ bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay,
 
   /* Start control threads */
   for (size_t i = 0; i < mChans; i++) {
-    TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams));
-    params->trx = this;
-    params->num = i;
-    mControlServiceLoopThreads[i] = new Thread(stackSize);
+    TransceiverChannel *chan = new TransceiverChannel(this, i);
+    mControlServiceLoopThreads[i] = new Thread(32768);
     mControlServiceLoopThreads[i]->start((void * (*)(void*))
-                                 ControlServiceLoopAdapter, (void*) params);
+                                 ControlServiceLoopAdapter, (void*) chan);
 
     if (i && filler == FILLER_DUMMY)
       filler = FILLER_ZERO;
@@ -286,8 +248,8 @@ bool Transceiver::start()
   }
 
   /* Device is running - launch I/O threads */
-  mRxLowerLoopThread = new Thread(stackSize);
-  mTxLowerLoopThread = new Thread(stackSize);
+  mRxLowerLoopThread = new Thread(32768);
+  mTxLowerLoopThread = new Thread(32768);
   mTxLowerLoopThread->start((void * (*)(void*))
                             TxLowerLoopAdapter,(void*) this);
   mRxLowerLoopThread->start((void * (*)(void*))
@@ -295,19 +257,15 @@ bool Transceiver::start()
 
   /* Launch uplink and downlink burst processing threads */
   for (size_t i = 0; i < mChans; i++) {
-    TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams));
-    params->trx = this;
-    params->num = i;
-    mRxServiceLoopThreads[i] = new Thread(stackSize);
+    TransceiverChannel *chan = new TransceiverChannel(this, i);
+    mRxServiceLoopThreads[i] = new Thread(32768);
     mRxServiceLoopThreads[i]->start((void * (*)(void*))
-                            RxUpperLoopAdapter, (void*) params);
+                            RxUpperLoopAdapter, (void*) chan);
 
-    params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams));
-    params->trx = this;
-    params->num = i;
-    mTxPriorityQueueServiceLoopThreads[i] = new Thread(stackSize);
+    chan = new TransceiverChannel(this, i);
+    mTxPriorityQueueServiceLoopThreads[i] = new Thread(32768);
     mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*))
-                            TxUpperLoopAdapter, (void*) params);
+                            TxUpperLoopAdapter, (void*) chan);
   }
 
   mForceClockInterface = true;
@@ -415,7 +373,7 @@ void Transceiver::pushRadioVector(GSM::Time &nowTime)
     state = &mStates[i];
 
     while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) {
-      LOGCHAN(i, DMAIN, NOTICE) << "dumping STALE burst in TRX->SDR interface ("
+      LOG(NOTICE) << "chan " << i << " dumping STALE burst in TRX->USRP interface ("
                   << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans;
       if (state->mRetrans)
         updateFillerTable(i, burst);
@@ -524,16 +482,16 @@ CorrType Transceiver::expectedCorrType(GSM::Time currTime,
     break;
   case IV:
   case VI:
-    return mExtRACH ? EXT_RACH : RACH;
+    return RACH;
     break;
   case V: {
     int mod51 = burstFN % 51;
     if ((mod51 <= 36) && (mod51 >= 14))
-      return mExtRACH ? EXT_RACH : RACH;
+      return RACH;
     else if ((mod51 == 4) || (mod51 == 5))
-      return mExtRACH ? EXT_RACH : RACH;
+      return RACH;
     else if ((mod51 == 45) || (mod51 == 46))
-      return mExtRACH ? EXT_RACH : RACH;
+      return RACH;
     else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]])
       return RACH;
     else
@@ -551,7 +509,7 @@ CorrType Transceiver::expectedCorrType(GSM::Time currTime,
   case XIII: {
     int mod52 = burstFN % 52;
     if ((mod52 == 12) || (mod52 == 38))
-      return mExtRACH ? EXT_RACH : RACH;
+      return RACH;
     else if ((mod52 == 25) || (mod52 == 51))
       return IDLE;
     else
@@ -584,26 +542,27 @@ void writeToFile(radioVector *radio_burst, size_t chan)
  * Pull bursts from the FIFO and handle according to the slot
  * and burst correlation type. Equalzation is currently disabled.
  */
-bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi)
+SoftVector *Transceiver::pullRadioVector(GSM::Time &wTime, double &RSSI, bool &isRssiValid,
+                                         double &timingOffset, double &noise,
+                                         size_t chan)
 {
   int rc;
-  struct estim_burst_params ebp;
-  float max = -1.0, avg = 0.0;
-  unsigned max_toa;
+  complex amp;
+  float toa, max = -1.0, avg = 0.0;
   int max_i = -1;
   signalVector *burst;
-  GSM::Time burstTime;
-  SoftVector *rxBurst;
+  SoftVector *bits = NULL;
   TransceiverState *state = &mStates[chan];
+  isRssiValid = false;
 
   /* Blocking FIFO read */
   radioVector *radio_burst = mReceiveFIFO[chan]->read();
   if (!radio_burst)
-    return false;
+    return NULL;
 
   /* Set time and determine correlation type */
-  burstTime = radio_burst->getTime();
-  CorrType type = expectedCorrType(burstTime, chan);
+  GSM::Time time = radio_burst->getTime();
+  CorrType type = expectedCorrType(time, chan);
 
   /* Enable 8-PSK burst detection if EDGE is enabled */
   if (mEdge && (type == TSC))
@@ -612,29 +571,16 @@ bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi)
   /* Debug: dump bursts to disk */
   /* bits 0-7  - chan 0 timeslots
    * bits 8-15 - chan 1 timeslots */
-  if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan)))
+  if (mWriteBurstToDiskMask & ((1<<time.TN()) << (8*chan)))
     writeToFile(radio_burst, chan);
 
   /* No processing if the timeslot is off.
    * Not even power level or noise calculation. */
   if (type == OFF) {
     delete radio_burst;
-    return false;
+    return NULL;
   }
 
-  /* Initialize struct bi */
-  bi->nbits = 0;
-  bi->fn = burstTime.FN();
-  bi->tn = burstTime.TN();
-  bi->rssi = 0.0;
-  bi->toa = 0.0;
-  bi->noise = 0.0;
-  bi->idle = false;
-  bi->modulation = MODULATION_GMSK;
-  bi->tss = 0; /* TODO: we only support tss 0 right now */
-  bi->tsc = 0;
-  bi->ci = 0.0;
-
   /* Select the diversity channel with highest energy */
   for (size_t i = 0; i < radio_burst->chans(); i++) {
     float pow = energyDetect(*radio_burst->getVector(i), 20 * mSPSRx);
@@ -647,64 +593,56 @@ bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi)
 
   if (max_i < 0) {
     LOG(ALERT) << "Received empty burst";
-    goto ret_idle;
+    delete radio_burst;
+    return NULL;
   }
 
   /* Average noise on diversity paths and update global levels */
   burst = radio_burst->getVector(max_i);
   avg = sqrt(avg / radio_burst->chans());
 
+  wTime = time;
+  RSSI = 20.0 * log10(rxFullScale / avg);
+
+  /* RSSI estimation are valid */
+  isRssiValid = true;
+
   if (type == IDLE) {
     /* Update noise levels */
     state->mNoises.insert(avg);
     state->mNoiseLev = state->mNoises.avg();
+    noise = 20.0 * log10(rxFullScale / state->mNoiseLev);
+
+    delete radio_burst;
+    return NULL;
+  } else {
+    /* Do not update noise levels */
+    noise = 20.0 * log10(rxFullScale / state->mNoiseLev);
   }
 
-  bi->rssi = 20.0 * log10(rxFullScale / avg) + rssiOffset;
-  bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssiOffset;
-
-  if (type == IDLE)
-    goto ret_idle;
-
-  max_toa = (type == RACH || type == EXT_RACH) ?
-            mMaxExpectedDelayAB : mMaxExpectedDelayNB;
-
   /* Detect normal or RACH bursts */
-  rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, max_toa, &ebp);
-  if (rc <= 0) {
-    if (rc == -SIGERR_CLIP)
+  rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, amp, toa,
+                      (type==RACH)?mMaxExpectedDelayAB:mMaxExpectedDelayNB);
+
+  if (rc > 0) {
+    type = (CorrType) rc;
+  } else if (rc <= 0) {
+    if (rc == -SIGERR_CLIP) {
       LOG(WARNING) << "Clipping detected on received RACH or Normal Burst";
-    else if (rc != SIGERR_NONE)
+    } else if (rc != SIGERR_NONE) {
       LOG(WARNING) << "Unhandled RACH or Normal Burst detection error";
-    goto ret_idle;
+    }
+
+    delete radio_burst;
+    return NULL;
   }
 
-  type = (CorrType) rc;
-  bi->toa = ebp.toa;
-  bi->tsc = ebp.tsc;
-  bi->ci = ebp.ci;
-  rxBurst = demodAnyBurst(*burst, mSPSRx, ebp.amp, ebp.toa, type);
+  timingOffset = toa;
 
-  /* EDGE demodulator returns 444 (gSlotLen * 3) bits */
-  if (rxBurst->size() == EDGE_BURST_NBITS) {
-    bi->modulation = MODULATION_8PSK;
-    bi->nbits = EDGE_BURST_NBITS;
-  } else { /* size() here is actually gSlotLen + 8, due to guard periods */
-    bi->modulation = MODULATION_GMSK;
-    bi->nbits = gSlotLen;
-  }
+  bits = demodAnyBurst(*burst, mSPSRx, amp, toa, type);
 
-  // Convert -1..+1 soft bits to 0..1 soft bits
-  vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits);
-
-  delete rxBurst;
   delete radio_burst;
-  return true;
-
-ret_idle:
-  bi->idle = true;
-  delete radio_burst;
-  return false;
+  return bits;
 }
 
 void Transceiver::reset()
@@ -753,24 +691,22 @@ void Transceiver::driveControl(size_t chan)
   int msgLen;
 
   /* Attempt to read from control socket */
-  msgLen = read(mCtrlSockets[chan], buffer, MAX_PACKET_LENGTH);
-  if (msgLen <= 0) {
-    LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen;
+  msgLen = mCtrlSockets[chan]->read(buffer, MAX_PACKET_LENGTH);
+  if (msgLen < 1)
     return;
-  }
 
   /* Zero-terminate received string */
   buffer[msgLen] = '\0';
 
   /* Verify a command signature */
   if (strncmp(buffer, "CMD ", 4)) {
-    LOGC(DTRXCTRL, WARNING) << "bogus message on control interface";
+    LOG(WARNING) << "bogus message on control interface";
     return;
   }
 
   /* Set command pointer */
   command = buffer + 4;
-  LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'";
+  LOG(INFO) << "command is " << command;
 
   if (match_cmd(command, "POWEROFF", NULL)) {
     stop();
@@ -849,7 +785,7 @@ void Transceiver::driveControl(size_t chan)
     sscanf(params, "%d", &freqKhz);
     mRxFreq = freqKhz * 1e3;
     if (!mRadioInterface->tuneRx(mRxFreq, chan)) {
-       LOGC(DTRXCTRL, ALERT) << "RX failed to tune";
+       LOG(ALERT) << "RX failed to tune";
        sprintf(response,"RSP RXTUNE 1 %d",freqKhz);
     }
     else
@@ -860,7 +796,7 @@ void Transceiver::driveControl(size_t chan)
     sscanf(params, "%d", &freqKhz);
     mTxFreq = freqKhz * 1e3;
     if (!mRadioInterface->tuneTx(mTxFreq, chan)) {
-       LOGC(DTRXCTRL, ALERT) << "TX failed to tune";
+       LOG(ALERT) << "TX failed to tune";
        sprintf(response,"RSP TXTUNE 1 %d",freqKhz);
     }
     else
@@ -872,7 +808,7 @@ void Transceiver::driveControl(size_t chan)
     if (TSC > 7) {
       sprintf(response, "RSP SETTSC 1 %d", TSC);
     } else {
-      LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC;
+      LOG(NOTICE) << "Changing TSC from " << mTSC << " to " << TSC;
       mTSC = TSC;
       sprintf(response,"RSP SETTSC 0 %d", TSC);
     }
@@ -882,27 +818,13 @@ void Transceiver::driveControl(size_t chan)
     int  timeslot;
     sscanf(params, "%d %d", &timeslot, &corrCode);
     if ((timeslot < 0) || (timeslot > 7)) {
-      LOGC(DTRXCTRL, WARNING) << "bogus message on control interface";
+      LOG(WARNING) << "bogus message on control interface";
       sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode);
       return;
     }
     mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode;
     setModulus(timeslot, chan);
     sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode);
-  } else if (match_cmd(command, "SETFORMAT", &params)) {
-    // set TRXD protocol version
-    unsigned version_recv;
-    sscanf(params, "%u", &version_recv);
-    LOGCHAN(chan, DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv;
-    if (version_recv > TRX_DATA_FORMAT_VER) {
-      LOGCHAN(chan, DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv
-                                    << "in favor of " <<  TRX_DATA_FORMAT_VER;
-      sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv);
-    } else {
-      LOGCHAN(chan, DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv;
-      mVersionTRXD[chan] = version_recv;
-      sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv);
-    }
   } else if (match_cmd(command, "_SETBURSTTODISKMASK", &params)) {
     // debug command! may change or disapear without notice
     // set a mask which bursts to dump to disk
@@ -911,30 +833,20 @@ void Transceiver::driveControl(size_t chan)
     mWriteBurstToDiskMask = mask;
     sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask);
   } else {
-    LOGC(DTRXCTRL, WARNING) << "bogus command " << command << " on control interface.";
+    LOG(WARNING) << "bogus command " << command << " on control interface.";
     sprintf(response,"RSP ERR 1");
   }
 
-  LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'";
-  msgLen = write(mCtrlSockets[chan], response, strlen(response) + 1);
-  if (msgLen <= 0)
-    LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets write(" << mCtrlSockets[chan] << ") failed: " << msgLen;
+  mCtrlSockets[chan]->write(response, strlen(response) + 1);
 }
 
 bool Transceiver::driveTxPriorityQueue(size_t chan)
 {
-  int msgLen;
   int burstLen;
   char buffer[EDGE_BURST_NBITS + 50];
-  struct trxd_hdr_common *chdr;
-  uint32_t fn;
 
   // check data socket
-  msgLen = read(mDataSockets[chan], buffer, sizeof(buffer));
-  if (msgLen <= 0) {
-    LOGCHAN(chan, DTRXCTRL, WARNING) << "mDataSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen;
-    return false;
-  }
+  size_t msgLen = mDataSockets[chan]->read(buffer, sizeof(buffer));
 
   if (msgLen == gSlotLen + 1 + 4 + 1) {
     burstLen = gSlotLen;
@@ -948,27 +860,12 @@ bool Transceiver::driveTxPriorityQueue(size_t chan)
     return false;
   }
 
-  /* Common header part: HDR version, TDMA TN & FN */
-  chdr = (struct trxd_hdr_common *) buffer;
+  int timeSlot = (int) buffer[0];
+  uint64_t frameNum = 0;
+  for (int i = 0; i < 4; i++)
+    frameNum = (frameNum << 8) | (0x0ff & buffer[i+1]);
 
-  /* Convert TDMA FN to the host endianness */
-  fn = osmo_load32be(&chdr->fn);
-
-  /* Make sure we support the received header format */
-  switch (chdr->version) {
-  case 0:
-  /* Version 1 has the same format */
-  case 1:
-    break;
-
-  default:
-    LOG(ERR) << "Rx TRXD message with unknown header version " << chdr->version;
-    return false;
-  }
-
-  LOG(DEBUG) << "Rx TRXD message (hdr_ver=" << chdr->version << "): "
-             << "fn=" << fn << ", tn=" << chdr->tn << ", "
-             << "burst_len=" << burstLen;
+  LOG(DEBUG) << "rcvd. burst at: " << GSM::Time(frameNum,timeSlot);
 
   int RSSI = (int) buffer[5];
   BitVector newBurst(burstLen);
@@ -977,7 +874,7 @@ bool Transceiver::driveTxPriorityQueue(size_t chan)
   while (itr < newBurst.end())
     *itr++ = *bufferItr++;
 
-  GSM::Time currTime = GSM::Time(fn, chdr->tn);
+  GSM::Time currTime = GSM::Time(frameNum,timeSlot);
 
   addRadioVector(chan, newBurst, RSSI, currTime);
 
@@ -988,59 +885,74 @@ bool Transceiver::driveTxPriorityQueue(size_t chan)
 
 void Transceiver::driveReceiveRadio()
 {
-  int rc = mRadioInterface->driveReceiveRadio();
-  if (rc == 0) {
+  if (!mRadioInterface->driveReceiveRadio()) {
     usleep(100000);
-  } else if (rc < 0) {
-    LOG(FATAL) << "radio Interface receive failed, requesting stop.";
-    osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL);
   } else if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) {
     mForceClockInterface = false;
     writeClockInterface();
   }
 }
 
-void Transceiver::logRxBurst(size_t chan, const struct trx_ul_burst_ind *bi)
+void Transceiver::logRxBurst(size_t chan, SoftVector *burst, GSM::Time time, double dbm,
+                             double rssi, double noise, double toa)
 {
-  std::ostringstream os;
-  for (size_t i=0; i < bi->nbits; i++) {
-    if (bi->rx_burst[i] > 0.5) os << "1";
-    else if (bi->rx_burst[i] > 0.25) os << "|";
-    else if (bi->rx_burst[i] > 0.0) os << "'";
-    else os << "-";
-  }
-
   LOG(DEBUG) << std::fixed << std::right
     << " chan: "   << chan
-    << " time: "   << bi->tn << ":" << bi->fn
-    << " RSSI: "   << std::setw(5) << std::setprecision(1) << (bi->rssi - rssiOffset)
-                   << "dBFS/" << std::setw(6) << -bi->rssi << "dBm"
-    << " noise: "  << std::setw(5) << std::setprecision(1) << (bi->noise - rssiOffset)
-                   << "dBFS/" << std::setw(6) << -bi->noise << "dBm"
-    << " TOA: "    << std::setw(5) << std::setprecision(2) << bi->toa
-    << " C/I: "    << std::setw(5) << std::setprecision(2) << bi->ci << "dB"
-    << " bits: "   << os;
+    << " time: "   << time
+    << " RSSI: "   << std::setw(5) << std::setprecision(1) << rssi
+                   << "dBFS/" << std::setw(6) << -dbm << "dBm"
+    << " noise: "  << std::setw(5) << std::setprecision(1) << noise
+                   << "dBFS/" << std::setw(6) << -(noise + rssiOffset) << "dBm"
+    << " TOA: "    << std::setw(5) << std::setprecision(2) << toa
+    << " bits: "   << *burst;
 }
 
 void Transceiver::driveReceiveFIFO(size_t chan)
 {
-  struct trx_ul_burst_ind bi;
+  SoftVector *rxBurst = NULL;
+  double RSSI; // in dBFS
+  double dBm;  // in dBm
+  double TOA;  // in symbols
+  int TOAint;  // in 1/256 symbols
+  double noise; // noise level in dBFS
+  GSM::Time burstTime;
+  bool isRssiValid; // are RSSI, noise and burstTime valid
+  unsigned nbits = gSlotLen;
 
-  if (!pullRadioVector(chan, &bi))
-        return;
-  if (!bi.idle)
-       logRxBurst(chan, &bi);
+  rxBurst = pullRadioVector(burstTime, RSSI, isRssiValid, TOA, noise, chan);
+  if (!rxBurst)
+    return;
 
-  switch (mVersionTRXD[chan]) {
-    case 0:
-      trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi);
-      break;
-    case 1:
-      trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi);
-      break;
-    default:
-      OSMO_ASSERT(false);
-  }
+  // Convert -1..+1 soft bits to 0..1 soft bits
+  vectorSlicer(rxBurst);
+
+  /*
+   * EDGE demodulator returns 444 (148 * 3) bits
+   */
+  if (rxBurst->size() == gSlotLen * 3)
+    nbits = gSlotLen * 3;
+
+  dBm = RSSI + rssiOffset;
+  logRxBurst(chan, rxBurst, burstTime, dBm, RSSI, noise, TOA);
+
+  TOAint = (int) (TOA * 256.0 + 0.5); // round to closest integer
+
+  char burstString[nbits + 10];
+  burstString[0] = burstTime.TN();
+  for (int i = 0; i < 4; i++)
+    burstString[1+i] = (burstTime.FN() >> ((3-i)*8)) & 0x0ff;
+  burstString[5] = (int)dBm;
+  burstString[6] = (TOAint >> 8) & 0x0ff;
+  burstString[7] = TOAint & 0x0ff;
+  SoftVector::iterator burstItr = rxBurst->begin();
+
+  for (unsigned i = 0; i < nbits; i++)
+    burstString[8 + i] = (char) round((*burstItr++) * 255.0);
+
+  burstString[nbits + 9] = '\0';
+  delete rxBurst;
+
+  mDataSockets[chan]->write(burstString, nbits + 10);
 }
 
 void Transceiver::driveTxFIFO()
@@ -1070,8 +982,7 @@ void Transceiver::driveTxFIFO()
           // only update latency at the defined frame interval
           if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) {
             mTransmitLatency = mTransmitLatency + GSM::Time(1,0);
-            LOG(INFO) << "new latency: " << mTransmitLatency << " (underrun "
-                      << radioClock->get() << " vs " << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")";
+            LOG(INFO) << "new latency: " << mTransmitLatency;
             mLatencyUpdateTime = radioClock->get();
           }
         }
@@ -1100,31 +1011,24 @@ void Transceiver::driveTxFIFO()
 
 void Transceiver::writeClockInterface()
 {
-  int msgLen;
   char command[50];
   // FIXME -- This should be adaptive.
   sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2));
 
   LOG(INFO) << "ClockInterface: sending " << command;
 
-  msgLen = write(mClockSocket, command, strlen(command) + 1);
-  if (msgLen <= 0)
-    LOG(WARNING) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen;
+  mClockSocket.write(command, strlen(command) + 1);
 
   mLastClockUpdateTime = mTransmitDeadlineClock;
 
 }
 
-void *RxUpperLoopAdapter(TrxChanThParams *params)
+void *RxUpperLoopAdapter(TransceiverChannel *chan)
 {
-  char thread_name[16];
-  Transceiver *trx = params->trx;
-  size_t num = params->num;
+  Transceiver *trx = chan->trx;
+  size_t num = chan->num;
 
-  free(params);
-
-  snprintf(thread_name, 16, "RxUpper%zu", num);
-  set_selfthread_name(thread_name);
+  delete chan;
 
   trx->setPriority(0.42);
 
@@ -1137,8 +1041,6 @@ void *RxUpperLoopAdapter(TrxChanThParams *params)
 
 void *RxLowerLoopAdapter(Transceiver *transceiver)
 {
-  set_selfthread_name("RxLower");
-
   transceiver->setPriority(0.45);
 
   while (1) {
@@ -1150,8 +1052,6 @@ void *RxLowerLoopAdapter(Transceiver *transceiver)
 
 void *TxLowerLoopAdapter(Transceiver *transceiver)
 {
-  set_selfthread_name("TxLower");
-
   transceiver->setPriority(0.44);
 
   while (1) {
@@ -1161,16 +1061,12 @@ void *TxLowerLoopAdapter(Transceiver *transceiver)
   return NULL;
 }
 
-void *ControlServiceLoopAdapter(TrxChanThParams *params)
+void *ControlServiceLoopAdapter(TransceiverChannel *chan)
 {
-  char thread_name[16];
-  Transceiver *trx = params->trx;
-  size_t num = params->num;
+  Transceiver *trx = chan->trx;
+  size_t num = chan->num;
 
-  free(params);
-
-  snprintf(thread_name, 16, "CtrlService%zu", num);
-  set_selfthread_name(thread_name);
+  delete chan;
 
   while (1) {
     trx->driveControl(num);
@@ -1179,16 +1075,12 @@ void *ControlServiceLoopAdapter(TrxChanThParams *params)
   return NULL;
 }
 
-void *TxUpperLoopAdapter(TrxChanThParams *params)
+void *TxUpperLoopAdapter(TransceiverChannel *chan)
 {
-  char thread_name[16];
-  Transceiver *trx = params->trx;
-  size_t num = params->num;
+  Transceiver *trx = chan->trx;
+  size_t num = chan->num;
 
-  free(params);
-
-  snprintf(thread_name, 16, "TxUpper%zu", num);
-  set_selfthread_name(thread_name);
+  delete chan;
 
   trx->setPriority(0.40);
 

Transceiver52M/Transceiver.h

@@ -1,8 +1,6 @@
 /*
 * 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.
 *
@@ -27,21 +25,31 @@
 #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 TrxChanThParams {
-	Transceiver *trx;
-	size_t num;
+struct TransceiverChannel {
+  TransceiverChannel(Transceiver *trx, int num)
+  {
+    this->trx = trx;
+    this->num = num;
+  }
+
+  ~TransceiverChannel()
+  {
+  }
+
+  Transceiver *trx;
+  size_t num;
 };
 
 /** Internal transceiver state variables */
@@ -99,14 +107,13 @@ public:
               size_t tx_sps, size_t rx_sps, size_t chans,
               GSM::Time wTransmitLatency,
               RadioInterface *wRadioInterface,
-              double wRssiOffset, int stackSize);
+              double wRssiOffset);
 
   /** Destructor */
   ~Transceiver();
 
   /** Start the control loop */
-  bool init(FillerType filler, size_t rtsc, unsigned rach_delay,
-            bool edge, bool ext_rach);
+  bool init(FillerType filler, size_t rtsc, unsigned rach_delay, bool edge);
 
   /** attach the radioInterface receive FIFO */
   bool receiveFIFO(VectorFIFO *wFIFO, size_t chan)
@@ -146,9 +153,9 @@ private:
   std::string mLocalAddr;
   std::string mRemoteAddr;
 
-  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<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<VectorQueue> mTxPriorityQueues;   ///< priority queue of transmit bursts received from GSM core
   std::vector<VectorFIFO *>  mReceiveFIFO;      ///< radioInterface FIFO of receive bursts
@@ -169,7 +176,6 @@ 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,
@@ -182,7 +188,9 @@ private:
   void pushRadioVector(GSM::Time &nowTime);
 
   /** Pull and demodulate a burst from the receive FIFO */
-  bool pullRadioVector(size_t chan, struct trx_ul_burst_ind *ind);
+  SoftVector *pullRadioVector(GSM::Time &wTime, double &RSSI, bool &isRssiValid,
+                              double &timingOffset, double &noise,
+                              size_t chan = 0);
 
   /** Set modulus for specific timeslot */
   void setModulus(size_t timeslot, size_t chan);
@@ -197,7 +205,6 @@ private:
   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
@@ -209,7 +216,6 @@ 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 */
@@ -238,11 +244,15 @@ protected:
   */
   bool driveTxPriorityQueue(size_t chan);
 
-  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);
+  friend void *RxUpperLoopAdapter(TransceiverChannel *);
+
+  friend void *TxUpperLoopAdapter(TransceiverChannel *);
+
+  friend void *RxLowerLoopAdapter(Transceiver *);
+
+  friend void *TxLowerLoopAdapter(Transceiver *);
+
+  friend void *ControlServiceLoopAdapter(TransceiverChannel *);
 
 
   void reset();
@@ -250,17 +260,18 @@ protected:
   /** set priority on current thread */
   void setPriority(float prio = 0.5) { mRadioInterface->setPriority(prio); }
 
-  void logRxBurst(size_t chan, const struct trx_ul_burst_ind *bi);
+  void logRxBurst(size_t chan, SoftVector *burst, GSM::Time time, double dbm,
+                  double rssi, double noise, double toa);
 };
 
-void *RxUpperLoopAdapter(TrxChanThParams *params);
+void *RxUpperLoopAdapter(TransceiverChannel *);
 
 /** Main drive threads */
-void *RxLowerLoopAdapter(Transceiver *transceiver);
-void *TxLowerLoopAdapter(Transceiver *transceiver);
+void *RxLowerLoopAdapter(Transceiver *);
+void *TxLowerLoopAdapter(Transceiver *);
 
 /** control message handler thread loop */
-void *ControlServiceLoopAdapter(TrxChanThParams *params);
+void *ControlServiceLoopAdapter(TransceiverChannel *);
 
 /** transmit queueing thread loop */
-void *TxUpperLoopAdapter(TrxChanThParams *params);
+void *TxUpperLoopAdapter(TransceiverChannel *);

Transceiver52M/arch/arm/convert.c

@@ -2,8 +2,6 @@
  * 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

@@ -2,8 +2,6 @@
  * 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

@@ -2,8 +2,6 @@
  * 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
@@ -31,15 +29,17 @@
 int _base_convolve_real(float *x, int x_len,
 			float *h, int h_len,
 			float *y, int y_len,
-			int start, int len);
+			int start, int len,
+			int step, int offset);
 
 int _base_convolve_complex(float *x, int x_len,
 			   float *h, int h_len,
 			   float *y, int y_len,
-			   int start, int len);
+			   int start, int len,
+			   int step, int offset);
 
 int bounds_check(int x_len, int h_len, int y_len,
-		 int start, int len);
+		 int start, int len, int step);
 
 #ifdef HAVE_NEON
 /* Calls into NEON assembler */
@@ -69,32 +69,35 @@ 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 start, int len,
+		  int step, int offset)
 {
 	void (*conv_func)(float *, float *, float *, int) = NULL;
 
-	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
 #ifdef HAVE_NEON
-	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;
+	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;
+		}
 	}
 #endif
 	if (conv_func) {
@@ -104,7 +107,7 @@ int convolve_real(float *x, int x_len,
 		_base_convolve_real(x, x_len,
 				    h, h_len,
 				    y, y_len,
-				    start, len);
+				    start, len, step, offset);
 	}
 
 	return len;
@@ -115,17 +118,18 @@ 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 start, int len,
+		     int step, int offset)
 {
 	void (*conv_func)(float *, float *, float *, int, int) = NULL;
 
-	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
 #ifdef HAVE_NEON
-	if (!(h_len % 4))
+	if (step <= 4 && !(h_len % 4))
 		conv_func = neon_conv_cmplx_4n;
 #endif
 	if (conv_func) {
@@ -135,7 +139,7 @@ int convolve_complex(float *x, int x_len,
 		_base_convolve_complex(x, x_len,
 				       h, h_len,
 				       y, y_len,
-				       start, len);
+				       start, len, step, offset);
 	}
 
 	return len;

Transceiver52M/arch/arm/convolve_neon.S

@@ -2,8 +2,6 @@
  * 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
@@ -94,8 +92,8 @@ neon_conv_real12:
 	vld2.32     {q8-q9}, [r4], r6
 	vld2.32   {q10-q11}, [r5], r6
 #ifdef HAVE_NEON_FMA
-	vmul.f32         q1,   q6, q0
-	vmul.f32         q3,   q7, q0
+	vfma.f32         q1,   q6, q0
+	vfma.f32         q3,   q7, q0
 	vfma.f32         q1,   q8, q2
 	vfma.f32         q3,   q9, q2
 	vfma.f32         q1,  q10, q4

Transceiver52M/arch/arm/mult.c

@@ -2,8 +2,6 @@
  * 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

@@ -1,9 +1,7 @@
 /*
- * NEON complex multiplication
+ * 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

@@ -2,8 +2,6 @@
  * 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

@@ -2,8 +2,6 @@
  * 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/convert_base.c

@@ -2,8 +2,6 @@
  * 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
@@ -33,3 +31,4 @@ 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

@@ -1,27 +1,31 @@
 #ifndef _CONVOLVE_H_
 #define _CONVOLVE_H_
 
-void *convolve_h_alloc(size_t num);
+void *convolve_h_alloc(int 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 start, int len,
+		  int step, int offset);
 
 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 start, int len,
+		     int step, int offset);
 
 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 start, int len,
+		       int step, int offset);
 
 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 start, int len,
+			  int step, int offset);
 
 void convolve_init(void);
 

Transceiver52M/arch/common/convolve_base.c

@@ -2,8 +2,6 @@
  * 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
@@ -43,17 +41,17 @@ 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 len, int step, int offset)
 {
-	for (int i=0; i<len; i++)
+	for (int i = offset; i < len; i += step)
 		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 len, int step, int offset)
 {
-	for (int i=0; i<len; i++)
+	for (int i = offset; i < len; i += step)
 		mac_cmplx(&x[2 * i], &h[2 * i], y);
 }
 
@@ -61,12 +59,14 @@ 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 start, int len,
+			int step, int offset)
 {
 	for (int i = 0; i < len; i++) {
 		mac_real_vec_n(&x[2 * (i - (h_len - 1) + start)],
 			       h,
-			       &y[2 * i], h_len);
+			       &y[2 * i], h_len,
+			       step, offset);
 	}
 
 	return len;
@@ -76,13 +76,14 @@ 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 start, int len,
+			   int step, int offset)
 {
 	for (int i = 0; i < len; i++) {
 		mac_cmplx_vec_n(&x[2 * (i - (h_len - 1) + start)],
 				h,
 				&y[2 * i],
-				h_len);
+				h_len, step, offset);
 	}
 
 	return len;
@@ -90,10 +91,10 @@ 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 start, int len, int step)
 {
 	if ((x_len < 1) || (h_len < 1) ||
-	    (y_len < 1) || (len < 1)) {
+	    (y_len < 1) || (len < 1) || (step < 1)) {
 		fprintf(stderr, "Convolve: Invalid input\n");
 		return -1;
 	}
@@ -112,9 +113,10 @@ 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 start, int len,
+		       int step, int offset)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
@@ -122,16 +124,17 @@ 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);
+				   start, len, step, offset);
 }
 
 /* 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 start, int len,
+			  int step, int offset)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
@@ -139,11 +142,11 @@ 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);
+				      start, len, step, offset);
 }
 
 /* Aligned filter tap allocation */
-void *convolve_h_alloc(size_t len)
+void *convolve_h_alloc(int len)
 {
 #ifdef HAVE_SSE3
 	return memalign(16, len * 2 * sizeof(float));

Transceiver52M/arch/common/fft.c

@@ -1,20 +1,18 @@
 /*
- * Fast Fourier transform
+ * Fast Fourier transform 
  *
  * 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
  * (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.
@@ -34,9 +32,9 @@ struct fft_hdl {
 	fftwf_plan fft_plan;
 };
 
-/*! \brief Initialize FFT backend
+/*! \brief Initialize FFT backend 
  *  \param[in] reverse FFT direction
- *  \param[in] m FFT length
+ *  \param[in] m FFT length 
  *  \param[in] istride input stride count
  *  \param[in] ostride output stride count
  *  \param[in] in input buffer (FFTW aligned)
@@ -94,7 +92,7 @@ void fft_free(void *ptr)
 	free(ptr);
 }
 
-/*! \brief Free FFT backend resources
+/*! \brief Free FFT backend resources 
  */
 void free_fft(struct fft_hdl *hdl)
 {

Transceiver52M/arch/x86/convolve.c

@@ -30,25 +30,25 @@
 /* Architecture dependant 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;
 
@@ -56,15 +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 start, int len,
+			int step, int offset);
 
 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 start, int len,
+			   int step, int offset);
 
 int bounds_check(int x_len, int h_len, int y_len,
-		 int start, int len);
+		 int start, int len, int step);
 
 /* API: Initalize convolve module */
 void convolve_init(void)
@@ -97,37 +99,46 @@ 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)
+		  float *y, int y_len, int start, int len, int step, int offset)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
-	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);
-	}
+	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);
 
 	return len;
 }
@@ -136,19 +147,26 @@ 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 start, int len, int step, int offset)
 {
-	if (bounds_check(x_len, h_len, y_len, start, len) < 0)
+	if (bounds_check(x_len, h_len, y_len, start, len, step) < 0)
 		return -1;
 
 	memset(y, 0, len * 2 * sizeof(float));
 
-	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);
+	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);
 
 	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 start, int len, int step, int offset)
 {
 	/* 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. */
+	 * _base_convolve_complex(), which are: x_len, y_len, offset, step */
 
 	__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 start, int len, int step, int offset)
 {
 	/* 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 start, int len, int step, int offset)
 {
 	/* 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 start, int len, int step, int offset)
 {
 	/* 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 start, int len, int step, int offset)
 {
 	/* 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 start, int len, int step, int offset)
 {
 	/* 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 start, int len, int step, int offset)
 {
 	/* 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. */
+	 * _base_convolve_complex(), which are: x_len, y_len, offset, step. */
 
 	__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 start, int len, int step, int offset)
 {
 	/* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);
 
 /* 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 start, int len, int step, int offset);

Transceiver52M/device/Makefile.am

@@ -1,6 +1,8 @@
 include $(top_srcdir)/Makefile.common
 
-SUBDIRS = common
+noinst_HEADERS = radioDevice.h
+
+SUBDIRS =
 
 if DEVICE_USRP1
 SUBDIRS += usrp1

Transceiver52M/device/common/Makefile.am

@@ -1,12 +0,0 @@
-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/smpl_buf.cpp

@@ -1,171 +0,0 @@
-/*
- * 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

@@ -1,89 +0,0 @@
-/*
- * 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 accessable 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

@@ -1,7 +1,5 @@
 /*
 * 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
@@ -23,14 +21,10 @@
 #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"
@@ -38,12 +32,13 @@ extern "C" {
 
 using namespace std;
 
+constexpr double LMSDevice::masterClockRate;
+
 #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,
@@ -51,30 +46,15 @@ LMSDevice::LMSDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface, size_t c
 	RadioDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths),
 	m_lms_dev(NULL)
 {
-	LOGC(DDEV, INFO) << "creating LMS device...";
+	LOG(INFO) << "creating LMS device...";
 
 	m_lms_stream_rx.resize(chans);
 	m_lms_stream_tx.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];
+	m_last_rx_underruns.resize(chans, 0);
+	m_last_rx_overruns.resize(chans, 0);
+	m_last_tx_underruns.resize(chans, 0);
+	m_last_tx_overruns.resize(chans, 0);
 }
 
 static void lms_log_callback(int lvl, const char *msg)
@@ -82,208 +62,169 @@ 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,
+		[1] = LOGL_ERROR,
+		[2] = LOGL_NOTICE,
+		[3] = LOGL_INFO,
+		[4] = 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;
+	LOGLV(DLMS, lvl) << msg;
+}
+
+static void thread_enable_cancel(bool cancel)
+{
+	cancel ? pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) :
+		 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
 }
 
 static void print_range(const char* name, lms_range_t *range)
 {
-	LOGC(DDEV, INFO) << name << ": Min=" << range->min << " Max=" << range->max
+	LOG(DEBUG) << 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 dev_str;
 	lms_info_str_t* info_list;
-	const lms_dev_info_t* device_info;
-	lms_range_t range_sr;
-	float_type sr_host, sr_rf;
+	lms_range_t range_lpfbw_rx, range_lpfbw_tx, range_sr;
+	float_type sr_host, sr_rf, lpfbw_rx, lpfbw_tx;
+	uint16_t dac_val;
 	unsigned int i, n;
-	int rc, dev_id;
+	int rc;
 
-	LOGC(DDEV, INFO) << "Opening LMS device..";
+	LOG(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;
+		LOG(ERROR) << "LMS_GetDeviceList(NULL) failed";
+	LOG(DEBUG) << "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";
+		LOG(ERROR) << "LMS_GetDeviceList(info_list) failed";
 
 	for (i = 0; i < n; i++)
-		LOGC(DDEV, INFO) << "Device [" << i << "]: " << info_list[i];
+		LOG(DEBUG) << "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);
+	rc = LMS_Open(&m_lms_dev, info_list[0], NULL);
 	if (rc != 0) {
-		LOGC(DDEV, ERROR) << "LMS_GetDeviceList() failed)";
+		LOG(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";
+	LOG(INFO) << "Init LMS device";
 	if (LMS_Init(m_lms_dev) != 0) {
-		LOGC(DDEV, ERROR) << "LMS_Init() failed";
-		goto out_close;
+		LOG(ERROR) << "LMS_Init() failed";
+		return -1;
 	}
 
-	/* 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;
+	LOG(DEBUG) << "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;
+	LOG(DEBUG) << "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";
+	switch (ref) {
+	case REF_INTERNAL:
+		LOG(DEBUG) << "Setting Internal clock reference";
+		/* Ugly API: Selecting clock source implicit by writing to VCTCXO DAC ?!? */
+		if (LMS_VCTCXORead(m_lms_dev, &dac_val) < 0)
+			goto out_close;
+		LOG(DEBUG) << "Setting VCTCXO to " << dac_val;
+		if (LMS_VCTCXOWrite(m_lms_dev, dac_val) < 0)
+			goto out_close;
+		break;
+	case REF_EXTERNAL:
+		LOG(DEBUG) << "Setting External clock reference to " << 10000000.0;
+		/* Assume an external 10 MHz reference clock */
+		if (LMS_SetClockFreq(m_lms_dev, LMS_CLOCK_EXTREF, 10000000.0) < 0)
+			goto out_close;
+		break;
+	default:
+		LOG(ALERT) << "Invalid reference type";
 		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));
+	if (LMS_GetLPFBWRange(m_lms_dev, LMS_CH_RX, &range_lpfbw_rx))
+		goto out_close;
+	print_range("LPFBWRange Rx", &range_lpfbw_rx);
+	if (LMS_GetLPFBWRange(m_lms_dev, LMS_CH_RX, &range_lpfbw_tx))
+		goto out_close;
+	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);
 
+	LOG(DEBUG) << "LPFBW: Rx=" << lpfbw_rx << " Tx=" << lpfbw_tx;
+
+	if (!set_antennas()) {
+		LOG(ALERT) << "LMS antenna setting failed";
+		return -1;
+	}
+
+	/* Perform Rx and Tx calibration */
+	for (i=0; i<chans; i++) {
+		LOG(INFO) << "Setting LPFBW chan " << i;
+		if (LMS_SetLPFBW(m_lms_dev, LMS_CH_RX, i, lpfbw_rx) < 0)
+			goto out_close;
+		if (LMS_SetLPFBW(m_lms_dev, LMS_CH_TX, i, lpfbw_tx) < 0)
+			goto out_close;
+		LOG(INFO) << "Calibrating chan " << i;
+		if (LMS_Calibrate(m_lms_dev, LMS_CH_RX, i, LMS_CALIBRATE_BW_HZ, 0) < 0)
+			goto out_close;
+		if (LMS_Calibrate(m_lms_dev, LMS_CH_TX, i, LMS_CALIBRATE_BW_HZ, 0) < 0)
+			goto out_close;
+	}
+
+	samplesRead = 0;
+	samplesWritten = 0;
 	started = false;
 
 	return NORMAL;
 
 out_close:
-	LOGC(DDEV, FATAL) << "Error in LMS open, closing: " << LMS_GetLastErrorMessage();
+	LOG(ALERT) << "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...";
+	LOG(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 */
+		if (LMS_EnableChannel(m_lms_dev, LMS_CH_RX, i, true) < 0)
+			return false;
+
+		if (LMS_EnableChannel(m_lms_dev, LMS_CH_TX, i, true) < 0)
+			return false;
+
+		// Set gains to midpoint
+		setTxGain((minTxGain() + maxTxGain()) / 2, i);
 		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;
@@ -331,59 +272,17 @@ bool LMSDevice::stop()
 	for (i=0; i<chans; i++) {
 		LMS_StopStream(&m_lms_stream_tx[i]);
 		LMS_StopStream(&m_lms_stream_rx[i]);
+
+		LMS_EnableChannel(m_lms_dev, LMS_CH_RX, i, false);
+		LMS_EnableChannel(m_lms_dev, LMS_CH_TX, i, false);
 	}
 
-	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;
+	return 73.0;
 }
 
 double LMSDevice::minTxGain()
@@ -403,30 +302,42 @@ double LMSDevice::minRxGain()
 
 double LMSDevice::setTxGain(double dB, size_t chan)
 {
+	if (chan) {
+		LOG(ALERT) << "Invalid channel " << chan;
+		return 0.0;
+	}
+
 	if (dB > maxTxGain())
 		dB = maxTxGain();
 	if (dB < minTxGain())
 		dB = minTxGain();
 
-	LOGCHAN(chan, DDEV, NOTICE) << "Setting TX gain to " << dB << " dB";
+	LOG(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";
+		LOG(ERR) << "Error setting TX gain";
 
 	return dB;
 }
 
 double LMSDevice::setRxGain(double dB, size_t chan)
 {
+	if (chan) {
+		LOG(ALERT) << "Invalid channel " << chan;
+		return 0.0;
+	}
+
+	dB = 34.0;
+
 	if (dB > maxRxGain())
 		dB = maxRxGain();
 	if (dB < minRxGain())
 		dB = minRxGain();
 
-	LOGCHAN(chan, DDEV, NOTICE) << "Setting RX gain to " << dB << " dB";
+	LOG(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";
+		LOG(ERR) << "Error setting RX gain";
 
 	return dB;
 }
@@ -450,7 +361,7 @@ bool LMSDevice::flush_recv(size_t num_pkts)
 {
 	#define CHUNK 625
 	int len = CHUNK * tx_sps;
-	short *buffer = (short*) alloca(sizeof(short) * len * 2);
+	short *buffer = new short[len * 2];
 	int rc;
 	lms_stream_meta_t rx_metadata = {};
 	rx_metadata.flushPartialPacket = false;
@@ -460,16 +371,18 @@ bool LMSDevice::flush_recv(size_t num_pkts)
 
 	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;
+		LOG(DEBUG) << "Flush: Recv buffer of len " << rc << " at " << std::hex << rx_metadata.timestamp;
 		if (rc != len) {
-			LOGC(DDEV, ERROR) << "Flush: Device receive timed out";
+			LOG(ALERT) << "LMS: Device receive timed out";
+			delete[] buffer;
 			return false;
 		}
 
 		ts_initial = rx_metadata.timestamp + len;
 	}
 
-	LOGC(DDEV, INFO) << "Initial timestamp " << ts_initial << std::endl;
+	LOG(INFO) << "Initial timestamp " << ts_initial << std::endl;
+	delete[] buffer;
 	return true;
 }
 
@@ -478,18 +391,18 @@ 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;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 
 	idx = get_ant_idx(ant, LMS_CH_RX, chan);
 	if (idx < 0) {
-		LOGCHAN(chan, DDEV, ERROR) << "Invalid Rx Antenna";
+		LOG(ALERT) << "Invalid Rx Antenna";
 		return false;
 	}
 
 	if (LMS_SetAntenna(m_lms_dev, LMS_CH_RX, chan, idx) < 0) {
-		LOGCHAN(chan, DDEV, ERROR) << "Unable to set Rx Antenna";
+		LOG(ALERT) << "Unable to set Rx Antenna";
 	}
 
 	return true;
@@ -501,18 +414,18 @@ std::string LMSDevice::getRxAntenna(size_t chan)
 	int idx;
 
 	if (chan >= rx_paths.size()) {
-		LOGC(DDEV, ERROR) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "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";
+		LOG(ALERT) << "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";
+		LOG(ALERT) << "Error getting Rx Antenna List";
 		return "";
 	}
 
@@ -524,18 +437,18 @@ 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;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 
 	idx = get_ant_idx(ant, LMS_CH_TX, chan);
 	if (idx < 0) {
-		LOGCHAN(chan, DDEV, ERROR) << "Invalid Rx Antenna";
+		LOG(ALERT) << "Invalid Rx Antenna";
 		return false;
 	}
 
 	if (LMS_SetAntenna(m_lms_dev, LMS_CH_TX, chan, idx) < 0) {
-		LOGCHAN(chan, DDEV, ERROR) << "Unable to set Rx Antenna";
+		LOG(ALERT) << "Unable to set Rx Antenna";
 	}
 
 	return true;
@@ -547,18 +460,18 @@ std::string LMSDevice::getTxAntenna(size_t chan)
 	int idx;
 
 	if (chan >= tx_paths.size()) {
-		LOGC(DDEV, ERROR) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "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";
+		LOG(ALERT) << "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";
+		LOG(ALERT) << "Error getting Tx Antenna List";
 		return "";
 	}
 
@@ -571,207 +484,103 @@ bool LMSDevice::requiresRadioAlign()
 }
 
 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 oveflow 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]);
-
+	/* Empirical data from a handful of
+	relatively recent machines shows that the B100 will underrun when
+	the transmit threshold is reduced to a time of 6 and a half frames,
+	so we set a minimum 7 frame threshold. */
+	return GSM::Time(6,7);
 }
 
 // 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;
+	int rc = 0;
 	unsigned int i;
+	lms_stream_status_t status;
 	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();
+		LOG(ALERT) << "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;
-			}
+		thread_enable_cancel(false);
+		rc = LMS_RecvStream(&m_lms_stream_rx[i], bufs[i], len, &rx_metadata, 100);
+		if (timestamp != (TIMESTAMP)rx_metadata.timestamp)
+			LOG(ALERT) << "chan "<< i << " recv buffer of len " << rc << " expect " << std::hex << timestamp << " got " << std::hex << (TIMESTAMP)rx_metadata.timestamp << " (" << std::hex << rx_metadata.timestamp <<") diff=" << rx_metadata.timestamp - timestamp;
+		if (rc != len) {
+			LOG(ALERT) << "LMS: Device receive timed out";
 		}
-	}
 
-	/* 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;
+		if (LMS_GetStreamStatus(&m_lms_stream_rx[i], &status) == 0) {
+			if (status.underrun > m_last_rx_underruns[i])
+				*underrun = true;
+			m_last_rx_underruns[i] = status.underrun;
+
+			if (status.overrun > m_last_rx_overruns[i])
+				*overrun = true;
+			m_last_rx_overruns[i] = status.overrun;
 		}
+		thread_enable_cancel(true);
 	}
 
-	return len;
-}
+	samplesRead += rc;
 
-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]);
+	if (((TIMESTAMP) rx_metadata.timestamp) < timestamp)
+		rc = 0;
 
+	return rc;
 }
 
 int LMSDevice::writeSamples(std::vector < short *>&bufs, int len,
 			    bool * underrun, unsigned long long timestamp,
 			    bool isControl)
 {
-	int rc = 0;
+	int rc;
 	unsigned int i;
+	lms_stream_status_t status;
 	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";
+		LOG(ERR) << "Control packets not supported";
 		return 0;
 	}
 
 	if (bufs.size() != chans) {
-		LOGC(DDEV, ERROR) << "Invalid channel combination " << bufs.size();
+		LOG(ALERT) << "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;
+		LOG(DEBUG) << "chan "<< i << " 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;
+			LOG(ALERT) << "LMS: Device send timed out";
 		}
+
+		if (LMS_GetStreamStatus(&m_lms_stream_tx[i], &status) == 0) {
+			if (status.underrun > m_last_tx_underruns[i])
+				*underrun = true;
+			m_last_tx_underruns[i] = status.underrun;
+		}
+		thread_enable_cancel(true);
 	}
 
+	samplesWritten += rc;
+
 	return rc;
 }
 
@@ -782,10 +591,14 @@ bool LMSDevice::updateAlignment(TIMESTAMP timestamp)
 
 bool LMSDevice::setTxFreq(double wFreq, size_t chan)
 {
-	LOGCHAN(chan, DDEV, NOTICE) << "Setting Tx Freq to " << wFreq << " Hz";
+
+	if (chan) {
+		LOG(ALERT) << "Invalid channel " << chan;
+		return false;
+	}
 
 	if (LMS_SetLOFrequency(m_lms_dev, LMS_CH_TX, chan, wFreq) < 0) {
-		LOGCHAN(chan, DDEV, ERROR) << "Error setting Tx Freq to " << wFreq << " Hz";
+		LOG(ALERT) << "set Tx: " << wFreq << " failed!";
 		return false;
 	}
 
@@ -794,10 +607,13 @@ bool LMSDevice::setTxFreq(double wFreq, size_t chan)
 
 bool LMSDevice::setRxFreq(double wFreq, size_t chan)
 {
-	LOGCHAN(chan, DDEV, NOTICE) << "Setting Rx Freq to " << wFreq << " Hz";
+	if (chan) {
+		LOG(ALERT) << "Invalid channel " << chan;
+		return false;
+	}
 
 	if (LMS_SetLOFrequency(m_lms_dev, LMS_CH_RX, chan, wFreq) < 0) {
-		LOGCHAN(chan, DDEV, ERROR) << "Error setting Rx Freq to " << wFreq << " Hz";
+		LOG(ALERT) << "set Rx: " << wFreq << " failed!";
 		return false;
 	}
 
@@ -809,13 +625,5 @@ RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
 			       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

@@ -1,10 +1,7 @@
 /*
 * 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 distribuion.
+* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
 *
 * This use of this software may be subject to additional restrictions.
 * See the LEGAL file in the main directory for details.
@@ -23,7 +20,6 @@
 #endif
 
 #include "radioDevice.h"
-#include "smpl_buf.h"
 
 #include <sys/time.h>
 #include <math.h>
@@ -32,41 +28,38 @@
 #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
+#define LIMESDR_TX_AMPL  0.3
 
 /** A class to handle a LimeSuite supported device */
 class LMSDevice:public RadioDevice {
 
 private:
+
+	static constexpr double masterClockRate = 52.0e6;
+
 	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;
+	std::vector<uint32_t> m_last_rx_underruns;
+	std::vector<uint32_t> m_last_rx_overruns;
+	std::vector<uint32_t> m_last_tx_underruns;
+	std::vector<uint32_t> m_last_tx_overruns;
 
 	double actualSampleRate;	///< the actual USRP sampling rate
 
+	unsigned long long samplesRead;	///< number of samples read from LMS
+	unsigned long long samplesWritten;	///< number of samples sent to LMS
+
 	bool started;		///< flag indicates LMS has started
 	bool skipRx;		///< set if LMS is transmit-only.
 
 	TIMESTAMP ts_initial, ts_offset;
 
 	double rxGain;
-	double maxTxGainClamp;
 
-	bool do_calib(size_t chan);
-	bool do_filters(size_t chan);
 	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:
 
@@ -74,7 +67,6 @@ public:
 	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);
@@ -199,6 +191,12 @@ public:
 	inline double getSampleRate() {
 		return actualSampleRate;
 	}
+	inline double numberRead() {
+		return samplesRead;
+	}
+	inline double numberWritten() {
+		return samplesWritten;
+	}
 };
 
 #endif // _LMS_DEVICE_H_

Transceiver52M/device/lms/Makefile.am

@@ -1,6 +1,6 @@
 include $(top_srcdir)/Makefile.common
 
-AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/..
 AM_CXXFLAGS = -lpthread $(LIBOSMOCORE_CFLAGS) $(LIBOSMOCTRL_CFLAGS) $(LIBOSMOVTY_CFLAGS) $(LMS_CFLAGS)
 
 noinst_HEADERS = LMSDevice.h
@@ -8,4 +8,3 @@ 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/radioDevice.h

@@ -23,7 +23,6 @@
 
 extern "C" {
 #include "config_defs.h"
-#include "osmo_signal.h"
 }
 
 #ifdef HAVE_CONFIG_H
@@ -59,6 +58,13 @@ class RadioDevice {
   /** Initialize the USRP */
   virtual int open(const std::string &args, int ref, bool swap_channels)=0;
 
+  RadioDevice(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):
+		tx_sps(tx_sps), rx_sps(rx_sps), iface(type), chans(chans), lo_offset(offset),
+		tx_paths(tx_paths), rx_paths(rx_paths)
+	{ }
+
   virtual ~RadioDevice() { }
 
   /** Start the USRP */
@@ -162,6 +168,8 @@ class RadioDevice {
   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;
@@ -169,21 +177,6 @@ class RadioDevice {
   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 chans, 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(chans), lo_offset(offset),
-		tx_paths(tx_paths), rx_paths(rx_paths)
-	{
-		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;
 

Transceiver52M/device/uhd/Makefile.am

@@ -1,11 +1,8 @@
 include $(top_srcdir)/Makefile.common
 
-AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/..
 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.cpp

@@ -6,8 +6,6 @@
  *
  * 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
@@ -25,9 +23,12 @@
 
 #include <map>
 #include "radioDevice.h"
-#include "UHDDevice.h"
 #include "Threads.h"
 #include "Logger.h"
+#include <uhd/version.hpp>
+#include <uhd/property_tree.hpp>
+#include <uhd/usrp/multi_usrp.hpp>
+#include <uhd/utils/thread_priority.hpp>
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -35,9 +36,6 @@
 
 #ifndef USE_UHD_3_11
 #include <uhd/utils/msg.hpp>
-#include <uhd/utils/thread_priority.hpp>
-#else
-#include <uhd/utils/thread.hpp>
 #endif
 
 #define USRP_TX_AMPL     0.3
@@ -58,6 +56,20 @@
  */
 #define UMTRX_VGA1_DEF   -18
 
+enum uhd_dev_type {
+	USRP1,
+	USRP2,
+	B100,
+	B200,
+	B210,
+	B2XX_MCBTS,
+	E1XX,
+	E3XX,
+	X3XX,
+	UMTRX,
+	LIMESDR,
+};
+
 /*
  * USRP version dependent device timings
  */
@@ -122,9 +134,192 @@ static const std::map<dev_key, dev_desc> dev_param_map {
 	{ std::make_tuple(B2XX_MCBTS, 4, 4), { 1, 51.2e6, MCBTS_SPACING*4, B2XX_TIMING_MCBTS, "B200/B210 4 SPS Multi-ARFCN" } },
 };
 
+/*
+    Sample Buffer - Allows reading and writing of timed samples using osmo-trx
+                    or UHD style timestamps. Time conversions are handled
+                    internally or accessable through the static convert calls.
+*/
+class smpl_buf {
+public:
+	/** Sample buffer constructor
+	    @param len number of 32-bit samples the buffer should hold
+	    @param rate sample clockrate
+	    @param timestamp
+	*/
+	smpl_buf(size_t len, double rate);
+	~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;
+	ssize_t avail_smpls(uhd::time_spec_t 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 read(void *buf, size_t len, uhd::time_spec_t timestamp);
+	ssize_t write(void *buf, size_t len, TIMESTAMP timestamp);
+	ssize_t write(void *buf, size_t len, uhd::time_spec_t timestamp);
+
+	/** Buffer status string
+	    @return a formatted string describing internal buffer state
+	*/
+	std::string str_status(size_t ts) 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;
+
+	double clk_rt;
+
+	TIMESTAMP time_start;
+	TIMESTAMP time_end;
+
+	size_t data_start;
+	size_t data_end;
+};
+
+/*
+    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();
+	void setPriority(float prio);
+	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 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; }
+	inline double numberRead() { return rx_pkt_cnt; }
+	inline double numberWritten() { return 0; }
+
+	/** 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 rx_pkt_cnt;
+	size_t drop_cnt;
+	uhd::time_spec_t prev_ts;
+
+	TIMESTAMP ts_initial, ts_offset;
+	std::vector<smpl_buf *> rx_buffers;
+
+	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;
+};
+
 void *async_event_loop(uhd_device *dev)
 {
-	set_selfthread_name("UHDAsyncEvent");
 	dev->setPriority(0.43);
 
 	while (1) {
@@ -145,13 +340,13 @@ void uhd_msg_handler(uhd::msg::type_t type, const std::string &msg)
 {
 	switch (type) {
 	case uhd::msg::status:
-		LOGC(DDEV, INFO) << msg;
+		LOG(INFO) << msg;
 		break;
 	case uhd::msg::warning:
-		LOGC(DDEV, WARNING) << msg;
+		LOG(WARNING) << msg;
 		break;
 	case uhd::msg::error:
-		LOGC(DDEV, ERROR) << msg;
+		LOG(ERR) << msg;
 		break;
 	case uhd::msg::fastpath:
 		break;
@@ -159,6 +354,12 @@ void uhd_msg_handler(uhd::msg::type_t type, const std::string &msg)
 }
 #endif
 
+static void thread_enable_cancel(bool cancel)
+{
+	cancel ? pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) :
+		 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
+}
+
 uhd_device::uhd_device(size_t tx_sps, size_t rx_sps,
 		       InterfaceType iface, size_t chans, double lo_offset,
 		       const std::vector<std::string>& tx_paths,
@@ -167,7 +368,7 @@ uhd_device::uhd_device(size_t tx_sps, size_t rx_sps,
 	  tx_gain_min(0.0), tx_gain_max(0.0),
 	  rx_gain_min(0.0), rx_gain_max(0.0),
 	  tx_spp(0), rx_spp(0),
-	  started(false), aligned(false), drop_cnt(0),
+	  started(false), aligned(false), rx_pkt_cnt(0), drop_cnt(0),
 	  prev_ts(0,0), ts_initial(0), ts_offset(0), async_event_thrd(NULL)
 {
 }
@@ -187,7 +388,7 @@ void uhd_device::init_gains()
 	if (dev_type == UMTRX) {
 		std::vector<std::string> gain_stages = usrp_dev->get_tx_gain_names(0);
 		if (gain_stages[0] == "VGA") {
-			LOGC(DDEV, WARNING) << "Update your UHD version for a proper Tx gain support";
+			LOG(WARNING) << "Update your UHD version for a proper Tx gain support";
 		}
 		if (gain_stages[0] == "VGA" || gain_stages[0] == "PA") {
 			range = usrp_dev->get_tx_gain_range();
@@ -203,23 +404,23 @@ void uhd_device::init_gains()
 		tx_gain_min = range.start();
 		tx_gain_max = range.stop();
 	}
-	LOGC(DDEV, INFO) << "Supported Tx gain range [" << tx_gain_min << "; " << tx_gain_max << "]";
+	LOG(INFO) << "Supported Tx gain range [" << tx_gain_min << "; " << tx_gain_max << "]";
 
 	range = usrp_dev->get_rx_gain_range();
 	rx_gain_min = range.start();
 	rx_gain_max = range.stop();
-	LOGC(DDEV, INFO) << "Supported Rx gain range [" << rx_gain_min << "; " << rx_gain_max << "]";
+	LOG(INFO) << "Supported Rx gain range [" << rx_gain_min << "; " << rx_gain_max << "]";
 
 	for (size_t i = 0; i < tx_gains.size(); i++) {
 		double gain = (tx_gain_min + tx_gain_max) / 2;
-		LOGC(DDEV, INFO) << "Default setting Tx gain for channel " << i << " to " << gain;
+		LOG(INFO) << "Default setting Tx gain for channel " << i << " to " << gain;
 		usrp_dev->set_tx_gain(gain, i);
 		tx_gains[i] = usrp_dev->get_tx_gain(i);
 	}
 
 	for (size_t i = 0; i < rx_gains.size(); i++) {
 		double gain = (rx_gain_min + rx_gain_max) / 2;
-		LOGC(DDEV, INFO) << "Default setting Rx gain for channel " << i << " to " << gain;
+		LOG(INFO) << "Default setting Rx gain for channel " << i << " to " << gain;
 		usrp_dev->set_rx_gain(gain, i);
 		rx_gains[i] = usrp_dev->get_rx_gain(i);
 	}
@@ -243,7 +444,7 @@ void uhd_device::set_rates()
 	rx_rate = usrp_dev->get_rx_rate();
 
 	ts_offset = static_cast<TIMESTAMP>(desc.offset * rx_rate);
-	LOGC(DDEV, INFO) << "Rates configured for " << desc.str;
+	LOG(INFO) << "Rates configured for " << desc.str;
 }
 
 double uhd_device::setTxGain(double db, size_t chan)
@@ -252,7 +453,7 @@ double uhd_device::setTxGain(double db, size_t chan)
 		chan = 0;
 
 	if (chan >= tx_gains.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel" << chan;
+		LOG(ALERT) << "Requested non-existent channel" << chan;
 		return 0.0f;
 	}
 
@@ -275,25 +476,22 @@ double uhd_device::setTxGain(double db, size_t chan)
 
 	tx_gains[chan] = usrp_dev->get_tx_gain(chan);
 
-	LOGC(DDEV, INFO) << "Set TX gain to " << tx_gains[chan] << "dB (asked for " << db << "dB)";
+	LOG(INFO) << "Set TX gain to " << tx_gains[chan] << "dB (asked for " << db << "dB)";
 
 	return tx_gains[chan];
 }
 
 double uhd_device::setRxGain(double db, size_t chan)
 {
-	if (iface == MULTI_ARFCN)
-		chan = 0;
-
 	if (chan >= rx_gains.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return 0.0f;
 	}
 
 	usrp_dev->set_rx_gain(db, chan);
 	rx_gains[chan] = usrp_dev->get_rx_gain(chan);
 
-	LOGC(DDEV, INFO) << "Set RX gain to " << rx_gains[chan] << "dB (asked for " << db << "dB)";
+	LOG(INFO) << "Set RX gain to " << rx_gains[chan] << "dB (asked for " << db << "dB)";
 
 	return rx_gains[chan];
 }
@@ -304,7 +502,7 @@ double uhd_device::getRxGain(size_t chan)
 		chan = 0;
 
 	if (chan >= rx_gains.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return 0.0f;
 	}
 
@@ -352,7 +550,7 @@ bool uhd_device::parse_dev_type()
 		mapIter++;
 	}
 
-	LOGC(DDEV, ALERT) << "Unsupported device " << devString;
+	LOG(ALERT) << "Unsupported device " << devString;
 	return false;
 }
 
@@ -423,16 +621,16 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	uhd::device_addr_t addr(args);
 	uhd::device_addrs_t dev_addrs = uhd::device::find(addr);
 	if (dev_addrs.size() == 0) {
-		LOGC(DDEV, ALERT) << "No UHD devices found with address '" << args << "'";
+		LOG(ALERT) << "No UHD devices found with address '" << args << "'";
 		return -1;
 	}
 
 	// Use the first found device
-	LOGC(DDEV, INFO) << "Using discovered UHD device " << dev_addrs[0].to_string();
+	LOG(INFO) << "Using discovered UHD device " << dev_addrs[0].to_string();
 	try {
 		usrp_dev = uhd::usrp::multi_usrp::make(addr);
-	} catch(uhd::key_error::exception &e) {
-		LOGC(DDEV, ALERT) << "UHD make failed, device " << args << ", exception:\n" << e.what();
+	} catch(...) {
+		LOG(ALERT) << "UHD make failed, device " << args;
 		return -1;
 	}
 
@@ -441,19 +639,19 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 		return -1;
 
 	if ((dev_type == E3XX) && !uhd_e3xx_version_chk()) {
-		LOGC(DDEV, ALERT) << "E3XX requires UHD 003.009.000 or greater";
+		LOG(ALERT) << "E3XX requires UHD 003.009.000 or greater";
 		return -1;
 	}
 
 	try {
 		set_channels(swap_channels);
         } catch (const std::exception &e) {
-		LOGC(DDEV, ALERT) << "Channel setting failed - " << e.what();
+		LOG(ALERT) << "Channel setting failed - " << e.what();
 		return -1;
 	}
 
 	if (!set_antennas()) {
-		LOGC(DDEV, ALERT) << "UHD antenna setting failed";
+		LOG(ALERT) << "UHD antenna setting failed";
 		return -1;
 	}
 
@@ -474,7 +672,7 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 		refstr = "gpsdo";
 		break;
 	default:
-		LOGC(DDEV, ALERT) << "Invalid reference type";
+		LOG(ALERT) << "Invalid reference type";
 		return -1;
 	}
 
@@ -483,7 +681,7 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	try {
 		set_rates();
         } catch (const std::exception &e) {
-		LOGC(DDEV, ALERT) << "UHD rate setting failed - " << e.what();
+		LOG(ALERT) << "UHD rate setting failed - " << e.what();
 		return -1;
 	}
 
@@ -516,18 +714,13 @@ int uhd_device::open(const std::string &args, int ref, bool swap_channels)
 	// Create receive buffer
 	size_t buf_len = SAMPLE_BUF_SZ / sizeof(uint32_t);
 	for (size_t i = 0; i < rx_buffers.size(); i++)
-		rx_buffers[i] = new smpl_buf(buf_len);
-
-	// Create vector buffer
-	pkt_bufs = std::vector<std::vector<short> >(chans, std::vector<short>(2 * rx_spp));
-	for (size_t i = 0; i < pkt_bufs.size(); i++)
-		pkt_ptrs.push_back(&pkt_bufs[i].front());
+		rx_buffers[i] = new smpl_buf(buf_len, rx_rate);
 
 	// Initialize and shadow gain values
 	init_gains();
 
 	// Print configuration
-	LOGC(DDEV, INFO) << "\n" << usrp_dev->get_pp_string();
+	LOG(INFO) << "\n" << usrp_dev->get_pp_string();
 
 	if (iface == MULTI_ARFCN)
 		return MULTI_ARFCN;
@@ -556,6 +749,13 @@ bool uhd_device::flush_recv(size_t num_pkts)
 	size_t num_smpls;
 	float timeout = UHD_RESTART_TIMEOUT;
 
+	std::vector<std::vector<short> >
+		pkt_bufs(chans, std::vector<short>(2 * rx_spp));
+
+	std::vector<short *> pkt_ptrs;
+	for (size_t i = 0; i < pkt_bufs.size(); i++)
+		pkt_ptrs.push_back(&pkt_bufs[i].front());
+
 	ts_initial = 0;
 	while (!ts_initial || (num_pkts-- > 0)) {
 		num_smpls = rx_stream->recv(pkt_ptrs, rx_spp, md,
@@ -563,7 +763,7 @@ bool uhd_device::flush_recv(size_t num_pkts)
 		if (!num_smpls) {
 			switch (md.error_code) {
 			case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
-				LOGC(DDEV, ALERT) << "Device timed out";
+				LOG(ALERT) << "Device timed out";
 				return false;
 			default:
 				continue;
@@ -573,7 +773,7 @@ bool uhd_device::flush_recv(size_t num_pkts)
 		ts_initial = md.time_spec.to_ticks(rx_rate);
 	}
 
-	LOGC(DDEV, INFO) << "Initial timestamp " << ts_initial << std::endl;
+	LOG(INFO) << "Initial timestamp " << ts_initial << std::endl;
 
 	return true;
 }
@@ -598,10 +798,10 @@ bool uhd_device::restart()
 
 bool uhd_device::start()
 {
-	LOGC(DDEV, INFO) << "Starting USRP...";
+	LOG(INFO) << "Starting USRP...";
 
 	if (started) {
-		LOGC(DDEV, ERROR) << "Device already started";
+		LOG(ERR) << "Device already started";
 		return false;
 	}
 
@@ -619,7 +819,7 @@ bool uhd_device::start()
 
 	// Display usrp time
 	double time_now = usrp_dev->get_time_now().get_real_secs();
-	LOGC(DDEV, INFO) << "The current time is " << time_now << " seconds";
+	LOG(INFO) << "The current time is " << time_now << " seconds";
 
 	started = true;
 	return true;
@@ -652,11 +852,11 @@ void uhd_device::setPriority(float prio)
 int uhd_device::check_rx_md_err(uhd::rx_metadata_t &md, ssize_t num_smpls)
 {
 	if (!num_smpls) {
-		LOGC(DDEV, ERROR) << str_code(md);
+		LOG(ERR) << str_code(md);
 
 		switch (md.error_code) {
 		case uhd::rx_metadata_t::ERROR_CODE_TIMEOUT:
-			LOGC(DDEV, ALERT) << "UHD: Receive timed out";
+			LOG(ALERT) << "UHD: Receive timed out";
 			return ERROR_TIMEOUT;
 		case uhd::rx_metadata_t::ERROR_CODE_OVERFLOW:
 		case uhd::rx_metadata_t::ERROR_CODE_LATE_COMMAND:
@@ -669,14 +869,14 @@ int uhd_device::check_rx_md_err(uhd::rx_metadata_t &md, ssize_t num_smpls)
 
 	// Missing timestamp
 	if (!md.has_time_spec) {
-		LOGC(DDEV, ALERT) << "UHD: Received packet missing timestamp";
+		LOG(ALERT) << "UHD: Received packet missing timestamp";
 		return ERROR_UNRECOVERABLE;
 	}
 
 	// Monotonicity check
 	if (md.time_spec < prev_ts) {
-		LOGC(DDEV, ALERT) << "UHD: Loss of monotonic time";
-		LOGC(DDEV, ALERT) << "Current time: " << md.time_spec.get_real_secs() << ", "
+		LOG(ALERT) << "UHD: Loss of monotonic time";
+		LOG(ALERT) << "Current time: " << md.time_spec.get_real_secs() << ", "
 			   << "Previous time: " << prev_ts.get_real_secs();
 		return ERROR_TIMING;
 	}
@@ -699,7 +899,7 @@ int uhd_device::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 	uhd::rx_metadata_t metadata;
 
 	if (bufs.size() != chans) {
-		LOGC(DDEV, ALERT) << "Invalid channel combination " << bufs.size();
+		LOG(ALERT) << "Invalid channel combination " << bufs.size();
 		return -1;
 	}
 
@@ -710,16 +910,24 @@ int uhd_device::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 	timestamp += ts_offset;
 
 	ts = uhd::time_spec_t::from_ticks(timestamp, rx_rate);
-	LOGC(DDEV, DEBUG) << "Requested timestamp = " << ts.get_real_secs();
+	LOG(DEBUG) << "Requested timestamp = " << ts.get_real_secs();
 
 	// 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);
+		LOG(ERR) << rx_buffers[0]->str_code(rc);
+		LOG(ERR) << rx_buffers[0]->str_status(timestamp);
 		return 0;
 	}
 
+	// Create vector buffer
+	std::vector<std::vector<short> >
+		pkt_bufs(chans, std::vector<short>(2 * rx_spp));
+
+	std::vector<short *> pkt_ptrs;
+	for (size_t i = 0; i < pkt_bufs.size(); i++)
+		pkt_ptrs.push_back(&pkt_bufs[i].front());
+
 	// Receive samples from the usrp until we have enough
 	while (rx_buffers[0]->avail_smpls(timestamp) < len) {
 		thread_enable_cancel(false);
@@ -727,12 +935,14 @@ int uhd_device::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 						   metadata, 0.1, true);
 		thread_enable_cancel(true);
 
+		rx_pkt_cnt++;
+
 		// Check for errors
 		rc = check_rx_md_err(metadata, num_smpls);
 		switch (rc) {
 		case ERROR_UNRECOVERABLE:
-			LOGC(DDEV, ALERT) << "UHD: Version " << uhd::get_version_string();
-			LOGC(DDEV, ALERT) << "UHD: Unrecoverable error, exiting...";
+			LOG(ALERT) << "UHD: Version " << uhd::get_version_string();
+			LOG(ALERT) << "UHD: Unrecoverable error, exiting...";
 			exit(-1);
 		case ERROR_TIMEOUT:
 			// Assume stopping condition
@@ -744,17 +954,17 @@ int uhd_device::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 		}
 
 		ts = metadata.time_spec;
-		LOGC(DDEV, DEBUG) << "Received timestamp = " << ts.get_real_secs();
+		LOG(DEBUG) << "Received timestamp = " << ts.get_real_secs();
 
 		for (size_t i = 0; i < rx_buffers.size(); i++) {
 			rc = rx_buffers[i]->write((short *) &pkt_bufs[i].front(),
 						  num_smpls,
-						  metadata.time_spec.to_ticks(rx_rate));
+						  metadata.time_spec);
 
 			// Continue on local overrun, exit on other errors
 			if ((rc < 0)) {
-				LOGC(DDEV, ERROR) << rx_buffers[i]->str_code(rc);
-				LOGC(DDEV, ERROR) << rx_buffers[i]->str_status(timestamp);
+				LOG(ERR) << rx_buffers[i]->str_code(rc);
+				LOG(ERR) << rx_buffers[i]->str_status(timestamp);
 				if (rc != smpl_buf::ERROR_OVERFLOW)
 					return 0;
 			}
@@ -765,8 +975,8 @@ int uhd_device::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 	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);
+			LOG(ERR) << rx_buffers[i]->str_code(rc);
+			LOG(ERR) << rx_buffers[i]->str_status(timestamp);
 			return 0;
 		}
 	}
@@ -787,12 +997,12 @@ int uhd_device::writeSamples(std::vector<short *> &bufs, int len, bool *underrun
 
 	// No control packets
 	if (isControl) {
-		LOGC(DDEV, ERROR) << "Control packets not supported";
+		LOG(ERR) << "Control packets not supported";
 		return 0;
 	}
 
 	if (bufs.size() != chans) {
-		LOGC(DDEV, ALERT) << "Invalid channel combination " << bufs.size();
+		LOG(ALERT) << "Invalid channel combination " << bufs.size();
 		return -1;
 	}
 
@@ -801,14 +1011,14 @@ int uhd_device::writeSamples(std::vector<short *> &bufs, int len, bool *underrun
 		drop_cnt++;
 
 		if (drop_cnt == 1) {
-			LOGC(DDEV, DEBUG) << "Aligning transmitter: stop burst";
+			LOG(DEBUG) << "Aligning transmitter: stop burst";
 			*underrun = true;
 			metadata.end_of_burst = true;
 		} else if (drop_cnt < 30) {
-			LOGC(DDEV, DEBUG) << "Aligning transmitter: packet advance";
+			LOG(DEBUG) << "Aligning transmitter: packet advance";
 			return len;
 		} else {
-			LOGC(DDEV, DEBUG) << "Aligning transmitter: start burst";
+			LOG(DEBUG) << "Aligning transmitter: start burst";
 			metadata.start_of_burst = true;
 			aligned = true;
 			drop_cnt = 0;
@@ -820,7 +1030,7 @@ int uhd_device::writeSamples(std::vector<short *> &bufs, int len, bool *underrun
 	thread_enable_cancel(true);
 
 	if (num_smpls != (unsigned) len) {
-		LOGC(DDEV, ALERT) << "UHD: Device send timed out";
+		LOG(ALERT) << "UHD: Device send timed out";
 	}
 
 	return num_smpls;
@@ -856,7 +1066,7 @@ uhd::tune_request_t uhd_device::select_freq(double freq, size_t chan, bool tx)
 
 		return uhd::tune_request_t(freq, lo_offset);
 	} else if ((dev_type != B210) || (chans > 2) || (chan > 1)) {
-		LOGC(DDEV, ALERT) << chans << " channels unsupported";
+		LOG(ALERT) << chans << " channels unsupported";
 		return treq;
 	}
 
@@ -872,7 +1082,7 @@ uhd::tune_request_t uhd_device::select_freq(double freq, size_t chan, bool tx)
 	/* Find center frequency between channels */
 	rf_spread = fabs(freqs[!chan] - freq);
 	if (rf_spread > dev_param_map.at(dev_key(B210, tx_sps, rx_sps)).mcr) {
-		LOGC(DDEV, ALERT) << rf_spread << "Hz tuning spread not supported\n";
+		LOG(ALERT) << rf_spread << "Hz tuning spread not supported\n";
 		return treq;
 	}
 
@@ -898,7 +1108,7 @@ bool uhd_device::set_freq(double freq, size_t chan, bool tx)
 		tres = usrp_dev->set_rx_freq(treq, chan);
 		rx_freqs[chan] = usrp_dev->get_rx_freq(chan);
 	}
-	LOGC(DDEV, INFO) << "\n" << tres.to_pp_string() << std::endl;
+	LOG(INFO) << "\n" << tres.to_pp_string() << std::endl;
 
 	if ((chans == 1) || ((chans == 2) && dev_type == UMTRX))
 		return true;
@@ -918,7 +1128,7 @@ bool uhd_device::set_freq(double freq, size_t chan, bool tx)
 			rx_freqs[!chan] = usrp_dev->get_rx_freq(!chan);
 
 		}
-		LOGC(DDEV, INFO) << "\n" << tres.to_pp_string() << std::endl;
+		LOG(INFO) << "\n" << tres.to_pp_string() << std::endl;
 	}
 
 	return true;
@@ -927,7 +1137,7 @@ bool uhd_device::set_freq(double freq, size_t chan, bool tx)
 bool uhd_device::setTxFreq(double wFreq, size_t chan)
 {
 	if (chan >= tx_freqs.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 	ScopedLock lock(tune_lock);
@@ -938,7 +1148,7 @@ bool uhd_device::setTxFreq(double wFreq, size_t chan)
 bool uhd_device::setRxFreq(double wFreq, size_t chan)
 {
 	if (chan >= rx_freqs.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 	ScopedLock lock(tune_lock);
@@ -949,7 +1159,7 @@ bool uhd_device::setRxFreq(double wFreq, size_t chan)
 double uhd_device::getTxFreq(size_t chan)
 {
 	if (chan >= tx_freqs.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return 0.0;
 	}
 
@@ -959,7 +1169,7 @@ double uhd_device::getTxFreq(size_t chan)
 double uhd_device::getRxFreq(size_t chan)
 {
 	if (chan >= rx_freqs.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return 0.0;
 	}
 
@@ -970,23 +1180,23 @@ bool uhd_device::setRxAntenna(const std::string &ant, size_t chan)
 {
 	std::vector<std::string> avail;
 	if (chan >= rx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 
 	avail = usrp_dev->get_rx_antennas(chan);
 	if (std::find(avail.begin(), avail.end(), ant) == avail.end()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent Rx antenna " << ant << " on channel " << chan;
-		LOGC(DDEV, INFO) << "Available Rx antennas: ";
+		LOG(ALERT) << "Requested non-existent Rx antenna " << ant << " on channel " << chan;
+		LOG(INFO) << "Available Rx antennas: ";
 		for (std::vector<std::string>::const_iterator i = avail.begin(); i != avail.end(); ++i)
-			LOGC(DDEV, INFO) << "- '" << *i << "'";
+			LOG(INFO) << "- '" << *i << "'";
 		return false;
 	}
 	usrp_dev->set_rx_antenna(ant, chan);
 	rx_paths[chan] = usrp_dev->get_rx_antenna(chan);
 
 	if (ant != rx_paths[chan]) {
-		LOGC(DDEV, ALERT) << "Failed setting antenna " << ant << " on channel " << chan << ", got instead " << rx_paths[chan];
+		LOG(ALERT) << "Failed setting antenna " << ant << " on channel " << chan << ", got instead " << rx_paths[chan];
 		return false;
 	}
 
@@ -996,7 +1206,7 @@ bool uhd_device::setRxAntenna(const std::string &ant, size_t chan)
 std::string uhd_device::getRxAntenna(size_t chan)
 {
 	if (chan >= rx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return "";
 	}
 	return usrp_dev->get_rx_antenna(chan);
@@ -1006,23 +1216,23 @@ bool uhd_device::setTxAntenna(const std::string &ant, size_t chan)
 {
 	std::vector<std::string> avail;
 	if (chan >= tx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
 
 	avail = usrp_dev->get_tx_antennas(chan);
 	if (std::find(avail.begin(), avail.end(), ant) == avail.end()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent Tx antenna " << ant << " on channel " << chan;
-		LOGC(DDEV, INFO) << "Available Tx antennas: ";
+		LOG(ALERT) << "Requested non-existent Tx antenna " << ant << " on channel " << chan;
+		LOG(INFO) << "Available Tx antennas: ";
 		for (std::vector<std::string>::const_iterator i = avail.begin(); i != avail.end(); ++i)
-			LOGC(DDEV, INFO) << "- '" << *i << "'";
+			LOG(INFO) << "- '" << *i << "'";
 		return false;
 	}
 	usrp_dev->set_tx_antenna(ant, chan);
 	tx_paths[chan] = usrp_dev->get_tx_antenna(chan);
 
 	if (ant != tx_paths[chan]) {
-		LOGC(DDEV, ALERT) << "Failed setting antenna " << ant << " on channel " << chan << ", got instead " << tx_paths[chan];
+		LOG(ALERT) << "Failed setting antenna " << ant << " on channel " << chan << ", got instead " << tx_paths[chan];
 		return false;
 	}
 
@@ -1032,7 +1242,7 @@ bool uhd_device::setTxAntenna(const std::string &ant, size_t chan)
 std::string uhd_device::getTxAntenna(size_t chan)
 {
 	if (chan >= tx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return "";
 	}
 	return usrp_dev->get_tx_antenna(chan);
@@ -1100,7 +1310,7 @@ bool uhd_device::recv_async_msg()
 
 		if ((md.event_code != uhd::async_metadata_t::EVENT_CODE_UNDERFLOW) &&
 		    (md.event_code != uhd::async_metadata_t::EVENT_CODE_TIME_ERROR)) {
-			LOGC(DDEV, ERROR) << str_code(md);
+			LOG(ERR) << str_code(md);
 		}
 	}
 
@@ -1176,6 +1386,166 @@ std::string uhd_device::str_code(uhd::async_metadata_t metadata)
 	return ost.str();
 }
 
+smpl_buf::smpl_buf(size_t len, double rate)
+	: buf_len(len), clk_rt(rate),
+	  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::avail_smpls(uhd::time_spec_t timespec) const
+{
+	return avail_smpls(timespec.to_ticks(clk_rt));
+}
+
+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::read(void *buf, size_t len, uhd::time_spec_t ts)
+{
+	return read(buf, len, ts.to_ticks(clk_rt));
+}
+
+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) {
+		LOG(ERR) << "Overwriting old buffer data: timestamp="<<timestamp<<" time_end="<<time_end;
+		uhd::time_spec_t ts = uhd::time_spec_t::from_ticks(timestamp, clk_rt);
+		LOG(DEBUG) << "Requested timestamp = " << timestamp << " (real_sec=" << std::fixed << ts.get_real_secs() << " = " << ts.to_ticks(clk_rt) << ") rate=" << clk_rt;
+		// Do not return error here, because it's a rounding error and is not fatal
+	}
+	if (timestamp > time_end && time_end != 0) {
+		LOG(ERR) << "Skipping buffer data: timestamp="<<timestamp<<" time_end="<<time_end;
+		uhd::time_spec_t ts = uhd::time_spec_t::from_ticks(timestamp, clk_rt);
+		LOG(DEBUG) << "Requested timestamp = " << timestamp << " (real_sec=" << std::fixed << ts.get_real_secs() << " = " << ts.to_ticks(clk_rt) << ") rate=" << clk_rt;
+		// 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;
+}
+
+ssize_t smpl_buf::write(void *buf, size_t len, uhd::time_spec_t ts)
+{
+	return write(buf, len, ts.to_ticks(clk_rt));
+}
+
+std::string smpl_buf::str_status(size_t ts) const
+{
+	std::ostringstream ost("Sample buffer: ");
+
+	ost << "timestamp = " << ts;
+	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";
+	}
+}
+
 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,

Transceiver52M/device/uhd/UHDDevice.h

@@ -1,175 +0,0 @@
-/*
- * 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();
-	void setPriority(float prio);
-	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 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

@@ -1,14 +1,8 @@
 include $(top_srcdir)/Makefile.common
 
-AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/../common
+AM_CPPFLAGS = -Wall $(STD_DEFINES_AND_INCLUDES) -I${srcdir}/..
 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

Transceiver52M/device/usrp1/USRPDevice.cpp

@@ -1,8 +1,6 @@
 /*
 * 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.
 *
@@ -66,7 +64,7 @@ USRPDevice::USRPDevice(size_t tx_sps, size_t rx_sps, InterfaceType iface,
 		       const std::vector<std::string>& rx_paths):
 		RadioDevice(tx_sps, rx_sps, iface, chans, lo_offset, tx_paths, rx_paths)
 {
-  LOGC(DDEV, INFO) << "creating USRP device...";
+  LOG(INFO) << "creating USRP device...";
 
   decimRate = (unsigned int) round(masterClockRate/((GSMRATE) * (double) tx_sps));
   actualSampleRate = masterClockRate/decimRate;
@@ -97,11 +95,12 @@ int USRPDevice::open(const std::string &, int, bool)
 {
   writeLock.unlock();
 
-  LOGC(DDEV, INFO) << "opening USRP device..";
+  LOG(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 * tx_sps, 1, -1,
@@ -111,18 +110,19 @@ int USRPDevice::open(const std::string &, int, bool)
   }
 
   catch(...) {
-    LOGC(DDEV, ALERT) << "make failed on Rx";
+    LOG(ALERT) << "make failed on Rx";
     m_uRx.reset();
     return -1;
   }
 
   if (m_uRx->fpga_master_clock_freq() != masterClockRate)
   {
-    LOGC(DDEV, ALERT) << "WRONG FPGA clock freq = " << m_uRx->fpga_master_clock_freq()
+    LOG(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(
@@ -132,20 +132,20 @@ int USRPDevice::open(const std::string &, int, bool)
   }
 
   catch(...) {
-    LOGC(DDEV, ALERT) << "make failed on Tx";
+    LOG(ALERT) << "make failed on Tx";
     m_uTx.reset();
     return -1;
   }
 
   if (m_uTx->fpga_master_clock_freq() != masterClockRate)
   {
-    LOGC(DDEV, ALERT) << "WRONG FPGA clock freq = " << m_uTx->fpga_master_clock_freq()
+    LOG(ALERT) << "WRONG FPGA clock freq = " << m_uTx->fpga_master_clock_freq()
                << ", desired clock freq = " << masterClockRate;
     m_uTx.reset();
     return -1;
   }
 
-  m_uRx->stop();
+  if (!skipRx) m_uRx->stop();
   m_uTx->stop();
 
 #endif
@@ -175,6 +175,8 @@ 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;
@@ -184,12 +186,12 @@ int USRPDevice::open(const std::string &, int, bool)
 
 bool USRPDevice::start()
 {
-  LOGC(DDEV, INFO) << "starting USRP...";
+  LOG(INFO) << "starting USRP...";
 #ifndef SWLOOPBACK
-  if (!m_uRx) return false;
+  if (!m_uRx && !skipRx) return false;
   if (!m_uTx) return false;
 
-  m_uRx->stop();
+  if (!skipRx) m_uRx->stop();
   m_uTx->stop();
 
   writeLock.lock();
@@ -219,7 +221,10 @@ 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);
@@ -265,7 +270,7 @@ double USRPDevice::minRxGain()
 double USRPDevice::setTxGain(double dB, size_t chan)
 {
   if (chan) {
-    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
+    LOG(ALERT) << "Invalid channel " << chan;
     return 0.0;
   }
 
@@ -275,10 +280,10 @@ double USRPDevice::setTxGain(double dB, size_t chan)
   if (dB < minTxGain())
     dB = minTxGain();
 
-  LOGC(DDEV, NOTICE) << "Setting TX gain to " << dB << " dB.";
+  LOG(NOTICE) << "Setting TX gain to " << dB << " dB.";
 
   if (!m_dbTx->set_gain(dB))
-    LOGC(DDEV, ERR) << "Error setting TX gain";
+    LOG(ERR) << "Error setting TX gain";
 
   writeLock.unlock();
 
@@ -289,7 +294,7 @@ double USRPDevice::setTxGain(double dB, size_t chan)
 double USRPDevice::setRxGain(double dB, size_t chan)
 {
   if (chan) {
-    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
+    LOG(ALERT) << "Invalid channel " << chan;
     return 0.0;
   }
 
@@ -301,10 +306,10 @@ double USRPDevice::setRxGain(double dB, size_t chan)
   if (dB < minRxGain())
     dB = minRxGain();
 
-  LOGC(DDEV, NOTICE) << "Setting RX gain to " << dB << " dB.";
+  LOG(NOTICE) << "Setting RX gain to " << dB << " dB.";
 
   if (!m_dbRx->set_gain(dB))
-    LOGC(DDEV, ERR) << "Error setting RX gain";
+    LOG(ERR) << "Error setting RX gain";
 
   writeLock.unlock();
 
@@ -314,40 +319,40 @@ double USRPDevice::setRxGain(double dB, size_t chan)
 bool USRPDevice::setRxAntenna(const std::string &ant, size_t chan)
 {
 	if (chan >= rx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
-	LOGC(DDEV, ALERT) << "Not implemented";
+	LOG(ALERT) << "Not implemented";
 	return true;
 }
 
 std::string USRPDevice::getRxAntenna(size_t chan)
 {
 	if (chan >= rx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return "";
 	}
-	LOGC(DDEV, ALERT) << "Not implemented";
+	LOG(ALERT) << "Not implemented";
 	return "";
 }
 
 bool USRPDevice::setTxAntenna(const std::string &ant, size_t chan)
 {
 	if (chan >= tx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return false;
 	}
-	LOGC(DDEV, ALERT) << "Not implemented";
+	LOG(ALERT) << "Not implemented";
 	return true;
 }
 
 std::string USRPDevice::getTxAntenna(size_t chan)
 {
 	if (chan >= tx_paths.size()) {
-		LOGC(DDEV, ALERT) << "Requested non-existent channel " << chan;
+		LOG(ALERT) << "Requested non-existent channel " << chan;
 		return "";
 	}
-	LOGC(DDEV, ALERT) << "Not implemented";
+	LOG(ALERT) << "Not implemented";
 	return "";
 }
 
@@ -377,7 +382,7 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
     return len;
   }
 
-  *underrun = false;
+  if (underrun) *underrun = false;
 
   uint32_t readBuf[2000];
 
@@ -393,18 +398,18 @@ 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;
-      LOGC(DDEV, DEBUG) << "first two bytes: " << hex << word0 << " " << dec << pktTimestamp;
+      LOG(DEBUG) << "first two bytes: " << hex << word0 << " " << dec << pktTimestamp;
 
       bool incrementHi32 = ((lastPktTimestamp & 0x0ffffffffll) > pktTimestamp);
       if (incrementHi32 && (timeStart!=0)) {
-           LOGC(DDEV, DEBUG) << "high 32 increment!!!";
+           LOG(DEBUG) << "high 32 increment!!!";
            hi32Timestamp++;
       }
       pktTimestamp = (((TIMESTAMP) hi32Timestamp) << 32) | pktTimestamp;
@@ -416,19 +421,19 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
 	if ((word2 >> 16) == ((0x01 << 8) | 0x02)) {
           timestamp -= timestampOffset;
 	  timestampOffset = pktTimestamp - pingTimestamp + pingOffset;
-	  LOGC(DDEV, DEBUG) << "updating timestamp offset to: " << timestampOffset;
+	  LOG(DEBUG) << "updating timestamp offset to: " << timestampOffset;
           timestamp += timestampOffset;
 	  isAligned = true;
 	}
 	continue;
       }
       if (chan != 0) {
-	LOGC(DDEV, DEBUG) << "chan: " << chan << ", timestamp: " << pktTimestamp << ", sz:" << payloadSz;
+	LOG(DEBUG) << "chan: " << chan << ", timestamp: " << pktTimestamp << ", sz:" << payloadSz;
 	continue;
       }
       if ((word0 >> 28) & 0x04) {
-	*underrun = true;
-	LOGC(DDEV, DEBUG) << "UNDERRUN in TRX->USRP interface";
+	if (underrun) *underrun = true;
+	LOG(DEBUG) << "UNDERRUN in TRX->USRP interface";
       }
       if (RSSI) *RSSI = (word0 >> 21) & 0x3f;
 
@@ -449,7 +454,7 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
       if (pktTimestamp + payloadSz/2/sizeof(short) > timeEnd)
 	timeEnd = pktTimestamp+payloadSz/2/sizeof(short);
 
-      LOGC(DDEV, DEBUG) << "timeStart: " << timeStart << ", timeEnd: " << timeEnd << ", pktTimestamp: " << pktTimestamp;
+      LOG(DEBUG) << "timeStart: " << timeStart << ", timeEnd: " << timeEnd << ", pktTimestamp: " << pktTimestamp;
 
     }
   }
@@ -457,14 +462,14 @@ 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) {
-    LOGC(DDEV, DEBUG) << "bufStart: " << bufStart;
+    LOG(DEBUG) << "bufStart: " << bufStart;
     memcpy(buf,data+bufStart*2,len*2*sizeof(short));
     memset(data+bufStart*2,0,len*2*sizeof(short));
   }
   else {
-    LOGC(DDEV, DEBUG) << "len: " << len << ", currDataSize/2: " << currDataSize/2 << ", bufStart: " << bufStart;
+    LOG(DEBUG) << "len: " << len << ", currDataSize/2: " << currDataSize/2 << ", bufStart: " << bufStart;
     unsigned firstLength = (currDataSize/2-bufStart);
-    LOGC(DDEV, DEBUG) << "firstLength: " << firstLength;
+    LOG(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));
@@ -505,6 +510,7 @@ int USRPDevice::readSamples(std::vector<short *> &bufs, int len, bool *overrun,
     gettimeofday(&lastReadTime,NULL);
     firstRead = true;
   }
+  samplesRead += numSamples;
 
   return numSamples;
 #endif
@@ -554,12 +560,14 @@ 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;
@@ -591,19 +599,19 @@ bool USRPDevice::setTxFreq(double wFreq, size_t chan)
   usrp_tune_result result;
 
   if (chan) {
-    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
+    LOG(ALERT) << "Invalid channel " << chan;
     return false;
   }
 
   if (m_uTx->tune(txSubdevSpec.side, m_dbTx, wFreq, &result)) {
-    LOGC(DDEV, INFO) << "set TX: " << wFreq << std::endl
+    LOG(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 {
-    LOGC(DDEV, ALERT) << "set TX: " << wFreq << " failed" << std::endl
+    LOG(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;
@@ -616,19 +624,19 @@ bool USRPDevice::setRxFreq(double wFreq, size_t chan)
   usrp_tune_result result;
 
   if (chan) {
-    LOGC(DDEV, ALERT) << "Invalid channel " << chan;
+    LOG(ALERT) << "Invalid channel " << chan;
     return false;
   }
 
   if (m_uRx->tune(0, m_dbRx, wFreq, &result)) {
-    LOGC(DDEV, INFO) << "set RX: " << wFreq << std::endl
+    LOG(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 {
-    LOGC(DDEV, ALERT) << "set RX: " << wFreq << " failed" << std::endl
+    LOG(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;
@@ -647,17 +655,5 @@ RadioDevice *RadioDevice::make(size_t tx_sps, size_t rx_sps,
 			       const std::vector<std::string>& tx_paths,
 			       const std::vector<std::string>& rx_paths)
 {
-	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

@@ -1,10 +1,7 @@
 /*
 * Copyright 2008 Free Software Foundation, Inc.
 *
-* 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 distribuion.
+* This software is distributed under multiple licenses; see the COPYING file in the main directory for licensing information for this specific distribuion.
 *
 * This use of this software may be subject to additional restrictions.
 * See the LEGAL file in the main directory for details.
@@ -54,7 +51,11 @@ private:
   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);
@@ -201,6 +202,8 @@ private:
   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; }
 };
 
 #endif // _USRP_DEVICE_H_

Transceiver52M/inband-signaling-usb

@@ -0,0 +1,314 @@
+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

@@ -1,8 +1,6 @@
 /*
  * 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
@@ -24,19 +22,16 @@
 
 #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>
@@ -54,14 +49,10 @@ extern "C" {
 #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"
 }
 
 #define DEFAULT_CONFIG_FILE	"osmo-trx.cfg"
@@ -70,7 +61,6 @@ extern "C" {
 
 static char* config_file = (char*)DEFAULT_CONFIG_FILE;
 
-struct osmo_fd signal_ofd;
 volatile bool gshutdown = false;
 
 static void *tall_trx_ctx;
@@ -120,20 +110,6 @@ RadioInterface *makeRadioInterface(struct trx_ctx *trx,
 	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,
@@ -147,9 +123,9 @@ int makeTransceiver(struct trx_ctx *trx, RadioInterface *radio)
 	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);
+			      radio, trx->cfg.rssi_offset);
 	if (!transceiver->init(trx->cfg.filler, trx->cfg.rtsc,
-		       trx->cfg.rach_delay, trx->cfg.egprs, trx->cfg.ext_rach)) {
+		       trx->cfg.rach_delay, trx->cfg.egprs)) {
 		LOG(ALERT) << "Failed to initialize transceiver";
 		return -1;
 	}
@@ -167,12 +143,6 @@ int makeTransceiver(struct trx_ctx *trx, RadioInterface *radio)
 
 static void sig_handler(int signo)
 {
-
-	if (gshutdown)
-		/* We are in the middle of shutdown process, avoid any kind of extra
-		   action like printing */
-		return;
-
 	fprintf(stdout, "signal %d received\n", signo);
 	switch (signo) {
 	case SIGINT:
@@ -188,68 +158,42 @@ static void sig_handler(int signo)
 	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()
 {
-	sigset_t set;
-	int sfd;
-
+	/* Handle keyboard interrupt SIGINT */
+	signal(SIGINT, &sig_handler);
+	signal(SIGTERM, &sig_handler);
 	signal(SIGABRT, &sig_handler);
+	signal(SIGUSR1, &sig_handler);
+	signal(SIGUSR2, &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);
-	}
+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);
 
-	if ((sfd = signalfd(-1, &set, 0)) == -1) {
-		fprintf(stderr, "signalfd() failed (%d).\n", errno);
-		exit(EXIT_FAILURE);
-	}
-
-	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);
+	while( ss.good() )
+	{
+	    std::string substr;
+	    getline(ss, substr, ',');
+	    result.push_back(substr);
 	}
+	return result;
 }
 
 static void print_help()
 {
 	fprintf(stdout, "Options:\n"
-		"  -h, --help      This text\n"
-		"  -C, --config    Filename The config file to use\n"
-		"  -V, --version   Print the version of OsmoTRX\n"
+		"  -h    This text\n"
+		"  -C    Filename The config file to use\n"
 		);
 }
 
@@ -257,7 +201,7 @@ 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.";
+		<< " All cmd line options are already being overriden by VTY options if set.";
 }
 
 static void handle_options(int argc, char **argv, struct trx_ctx* trx)
@@ -266,15 +210,8 @@ static void handle_options(int argc, char **argv, struct trx_ctx* trx)
 	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}
-	};
 
-	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) {
+	while ((option = getopt(argc, argv, "ha:l:i:j:p:c:dmxgfo:s:b:r:A:R:Set:y:z:C:")) != -1) {
 		switch (option) {
 		case 'h':
 			print_help();
@@ -374,10 +311,6 @@ static void handle_options(int argc, char **argv, struct trx_ctx* trx)
 		case 'C':
 			config_file = optarg;
 			break;
-		case 'V':
-			print_version(1);
-			exit(0);
-			break;
 		default:
 			goto bad_config;
 		}
@@ -412,14 +345,14 @@ bad_config:
 
 int trx_validate_config(struct trx_ctx *trx)
 {
-	if (trx->cfg.multi_arfcn && trx->cfg.num_chans > TRX_MCHAN_MAX) {
+	if (trx->cfg.multi_arfcn && trx->cfg.num_chans > 5) {
 		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)) {
+	    (trx->cfg.tx_sps!=4 || trx->cfg.tx_sps!=4)) {
 		LOG(ERROR) << "EDGE and Multi-Carrier options require 4 tx and rx sps. Check you config.";
 		return -1;
 	}
@@ -433,7 +366,7 @@ static int set_sched_rr(unsigned int prio)
 	int rc;
 	memset(&param, 0, sizeof(param));
 	param.sched_priority = prio;
-	LOG(INFO) << "Setting SCHED_RR priority " << param.sched_priority;
+	printf("Setting SCHED_RR priority(%d)\n", param.sched_priority);
 	rc = sched_setscheduler(getpid(), SCHED_RR, &param);
 	if (rc != 0) {
 		LOG(ERROR) << "Config: Setting SCHED_RR failed";
@@ -457,7 +390,6 @@ static void print_config(struct trx_ctx *trx)
 	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 << "   C0 Filler Table......... " << trx->cfg.filler << std::endl;
 	ost << "   Multi-Carrier........... " << trx->cfg.multi_arfcn << std::endl;
@@ -477,12 +409,12 @@ static void print_config(struct trx_ctx *trx)
 	}
 	ost << std::endl;
 
-	LOG(INFO) << ost << std::endl;
+	std::cout << ost << std::endl;
 }
 
 static void trx_stop()
 {
-	LOG(NOTICE) << "Shutting down transceiver..." << std::endl;
+	std::cout << "Shutting down transceiver..." << std::endl;
 
 	delete transceiver;
 	delete radio;
@@ -525,7 +457,7 @@ static int trx_start(struct trx_ctx *trx)
 		goto shutdown;
 
 	chans = transceiver->numChans();
-	LOG(NOTICE) << "-- Transceiver active with "
+	std::cout << "-- Transceiver active with "
 		  << chans << " channel(s)" << std::endl;
 
 	return 0;
@@ -571,10 +503,6 @@ int main(int argc, char *argv[])
 #endif
 #endif
 
-	if (!log_mutex_init()) {
-		fprintf(stderr, "Failed to initialize log mutex!\n");
-		exit(2);
-	}
 	convolve_init();
 	convert_init();
 
@@ -602,9 +530,9 @@ int main(int argc, char *argv[])
 	if (rc < 0)
 		exit(1);
 
-	g_ctrlh = ctrl_interface_setup_dynip(NULL, ctrl_vty_get_bind_addr(), OSMO_CTRL_PORT_TRX, NULL);
+	g_ctrlh = ctrl_interface_setup(NULL, OSMO_CTRL_PORT_TRX, NULL);
 	if (!g_ctrlh) {
-		LOG(ERROR) << "Failed to create CTRL interface.\n";
+		fprintf(stderr, "Failed to create CTRL interface.\n");
 		exit(1);
 	}
 
@@ -631,9 +559,6 @@ int main(int argc, char *argv[])
 			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));
 
 	if(trx_start(g_trx_ctx) < 0)
@@ -644,8 +569,5 @@ int main(int argc, char *argv[])
 
 	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

@@ -1,117 +0,0 @@
-/*
- * 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 appeneded 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

@@ -1,94 +0,0 @@
-#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));
-
-
-#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

@@ -5,8 +5,6 @@
  *
  * 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
@@ -98,7 +96,7 @@ const float *RadioBuffer::getReadSegment()
 /*
  * Output direction
  *
- * Write a non-segment length of samples to the buffer.
+ * Write a non-segment length of samples to the buffer. 
  */
 bool RadioBuffer::write(const float *wr, size_t len)
 {

Transceiver52M/radioClock.cpp

@@ -4,8 +4,6 @@
  *
  * 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

@@ -4,8 +4,6 @@
  *
  * 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

@@ -4,8 +4,6 @@
  * 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
@@ -36,8 +34,7 @@ RadioInterface::RadioInterface(RadioDevice *wRadio, 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), writeTimestamp(0), readTimestamp(0),
-    receiveOffset(wReceiveOffset), mOn(false)
+    underrun(false), overrun(false), receiveOffset(wReceiveOffset), mOn(false)
 {
   mClock.set(wStartTime);
 }
@@ -78,14 +75,6 @@ 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);
@@ -159,7 +148,6 @@ bool RadioInterface::tuneRx(double freq, size_t chan)
 /** synchronization thread loop */
 void *AlignRadioServiceLoopAdapter(RadioInterface *radioInterface)
 {
-  set_selfthread_name("AlignRadio");
   while (1) {
     sleep(60);
     radioInterface->alignRadio();
@@ -230,15 +218,14 @@ void RadioInterface::driveTransmitRadio(std::vector<signalVector *> &bursts,
   while (pushBuffer());
 }
 
-int RadioInterface::driveReceiveRadio()
+bool RadioInterface::driveReceiveRadio()
 {
   radioVector *burst = NULL;
 
   if (!mOn)
-    return 0;
+    return false;
 
-  if (pullBuffer() < 0)
-    return  -1;
+  pullBuffer();
 
   GSM::Time rcvClock = mClock.get();
   rcvClock.decTN(receiveOffset);
@@ -252,11 +239,11 @@ int RadioInterface::driveReceiveRadio()
   else
     burstSize = symbolsPerSlot + (tN % 4 == 0);
 
-  /*
+  /* 
    * Pre-allocate head room for the largest correlation size
    * so we can later avoid a re-allocation and copy
    * */
-  size_t head = GSM::gRACHSynchSequenceTS0.size();
+  size_t head = GSM::gRACHSynchSequence.size();
 
   /*
    * Form receive bursts and pass up to transceiver. Use repeating
@@ -283,7 +270,7 @@ int RadioInterface::driveReceiveRadio()
       burstSize = (symbolsPerSlot + (tN % 4 == 0)) * mSPSRx;
   }
 
-  return 1;
+  return true;
 }
 
 bool RadioInterface::isUnderrun()
@@ -313,14 +300,13 @@ double RadioInterface::getRxGain(size_t chan)
 }
 
 /* Receive a timestamped chunk from the device */
-int RadioInterface::pullBuffer()
+void RadioInterface::pullBuffer()
 {
   bool local_underrun;
-  int numRecv;
-  size_t segmentLen = recvBuffer[0]->getSegmentLen();
+  size_t numRecv, segmentLen = recvBuffer[0]->getSegmentLen();
 
   if (recvBuffer[0]->getFreeSegments() <= 0)
-    return -1;
+    return;
 
   /* Outer buffer access size is fixed */
   numRecv = mRadio->readSamples(convertRecvBuffer,
@@ -329,9 +315,9 @@ int RadioInterface::pullBuffer()
                                 readTimestamp,
                                 &local_underrun);
 
-  if ((size_t) numRecv != segmentLen) {
+  if (numRecv != segmentLen) {
           LOG(ALERT) << "Receive error " << numRecv;
-          return -1;
+          return;
   }
 
   for (size_t i = 0; i < mChans; i++) {
@@ -342,13 +328,11 @@ int RadioInterface::pullBuffer()
 
   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)
@@ -364,9 +348,8 @@ bool RadioInterface::pushBuffer()
   /* Send the all samples in the send buffer */
   numSent = mRadio->writeSamples(convertSendBuffer,
                                  segmentLen,
-                                 &local_underrun,
+                                 &underrun,
                                  writeTimestamp);
-  underrun |= local_underrun;
   writeTimestamp += numSent;
 
   return true;

Transceiver52M/radioInterface.h

@@ -14,7 +14,7 @@
 
 
 
-#include "sigProcLib.h"
+#include "sigProcLib.h"  
 #include "GSMCommon.h"
 #include "LinkedLists.h"
 #include "radioDevice.h"
@@ -71,7 +71,7 @@ private:
   virtual bool pushBuffer(void);
 
   /** pull GSM bursts from the receive buffer */
-  virtual int pullBuffer(void);
+  virtual void pullBuffer(void);
 
 public:
 
@@ -116,8 +116,8 @@ public:
   void driveTransmitRadio(std::vector<signalVector *> &bursts,
                           std::vector<bool> &zeros);
 
-  /** drive reception of GSM bursts. -1: Error. 0: Radio off. 1: Received something. */
-  int driveReceiveRadio();
+  /** drive reception of GSM bursts */
+  bool driveReceiveRadio();
 
   int setPowerAttenuation(int atten, size_t chan = 0);
 
@@ -130,7 +130,7 @@ public:
   /** set thread priority on current thread */
   void setPriority(float prio = 0.5) { mRadio->setPriority(prio); }
 
-  /** get transport window type of attached device */
+  /** get transport window type of attached device */ 
   enum RadioDevice::TxWindowType getWindowType() { return mRadio->getWindowType(); }
 
   /** Minimum latency that the device can achieve */
@@ -149,7 +149,7 @@ private:
   signalVector *outerRecvBuffer;
 
   bool pushBuffer();
-  int pullBuffer();
+  void pullBuffer();
 
 public:
   RadioInterfaceResamp(RadioDevice* wRadio, size_t tx_sps, size_t rx_sps);
@@ -162,7 +162,7 @@ public:
 class RadioInterfaceMulti : public RadioInterface {
 private:
   bool pushBuffer();
-  int pullBuffer();
+  void pullBuffer();
 
   signalVector *outerSendBuffer;
   signalVector *outerRecvBuffer;

Transceiver52M/radioInterfaceMulti.cpp

@@ -1,12 +1,10 @@
 /*
  * Multi-carrier radio interface
  *
- * Copyright (C) 2016 Ettus Research LLC
+ * Copyright (C) 2016 Ettus Research LLC 
  *
  * 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
@@ -227,15 +225,14 @@ bool RadioInterfaceMulti::init(int type)
 }
 
 /* Receive a timestamped chunk from the device */
-int RadioInterfaceMulti::pullBuffer()
+void RadioInterfaceMulti::pullBuffer()
 {
 	bool local_underrun;
 	size_t num;
 	float *buf;
-	unsigned int i;
 
 	if (recvBuffer[0]->getFreeSegments() <= 0)
-		return -1;
+		return;
 
 	/* Outer buffer access size is fixed */
 	num = mRadio->readSamples(convertRecvBuffer,
@@ -245,7 +242,7 @@ int RadioInterfaceMulti::pullBuffer()
 				  &local_underrun);
 	if (num != channelizer->inputLen()) {
 		LOG(ALERT) << "Receive error " << num << ", " << channelizer->inputLen();
-		return -1;
+		return;
 	}
 
 	convert_short_float((float *) outerRecvBuffer->begin(),
@@ -276,22 +273,10 @@ int RadioInterfaceMulti::pullBuffer()
 		buf = channelizer->outputBuffer(pchan);
 		size_t cLen = channelizer->outputLen();
 		size_t hLen = dnsampler->len();
+		size_t hSize = 2 * hLen * sizeof(float);
 
-		float *fdst = &buf[2 * -hLen];
-		complex *src = history[lchan]->begin();
-		for (i = 0; i < hLen; i++) {
-			fdst[0] = src->real();
-			fdst[1] = src->imag();
-			src++;
-			fdst += 2;
-		}
-		complex *dst = history[lchan]->begin();
-		float *fsrc = &buf[2 * (cLen - hLen)];
-		for (i = 0; i < hLen; i++) {
-			*dst = complex(fdst[0], fdst[1]);
-			fsrc += 2;
-			dst++;
-		}
+		memcpy(&buf[2 * -hLen], history[lchan]->begin(), hSize);
+		memcpy(history[lchan]->begin(), &buf[2 * (cLen - hLen)], hSize);
 
 		float *wr_segment = recvBuffer[lchan]->getWriteSegment();
 
@@ -303,7 +288,6 @@ int RadioInterfaceMulti::pullBuffer()
 			LOG(ALERT) << "Sample rate upsampling error";
 		}
 	}
-	return 0;
 }
 
 /* Send a timestamped chunk to the device */

Transceiver52M/radioInterfaceResamp.cpp

@@ -6,8 +6,6 @@
  *
  * 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
@@ -162,13 +160,13 @@ bool RadioInterfaceResamp::init(int type)
 }
 
 /* Receive a timestamped chunk from the device */
-int RadioInterfaceResamp::pullBuffer()
+void RadioInterfaceResamp::pullBuffer()
 {
 	bool local_underrun;
 	int rc, num_recv;
 
 	if (recvBuffer[0]->getFreeSegments() <= 0)
-		return -1;
+		return;
 
 	/* Outer buffer access size is fixed */
 	num_recv = mRadio->readSamples(convertRecvBuffer,
@@ -178,7 +176,7 @@ int RadioInterfaceResamp::pullBuffer()
 				       &local_underrun);
 	if (num_recv != (int) resamp_outchunk) {
 		LOG(ALERT) << "Receive error " << num_recv;
-		return -1;
+		return;
 	}
 
 	convert_short_float((float *) outerRecvBuffer->begin(),
@@ -198,7 +196,6 @@ int RadioInterfaceResamp::pullBuffer()
 
 	/* Set history for the next chunk */
 	outerRecvBuffer->updateHistory();
-	return 0;
 }
 
 /* Send a timestamped chunk to the device */

Transceiver52M/radioVector.cpp

@@ -4,8 +4,6 @@
  *
  * 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/radioVector.h

@@ -4,8 +4,6 @@
  *
  * 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/sigProcLib.cpp

@@ -1,8 +1,6 @@
 /*
 * 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.
 *
@@ -86,13 +84,14 @@ static Resampler *dnsampler = NULL;
  * perform 16-byte memory alignment required by many SSE instructions.
  */
 struct CorrelationSequence {
-  CorrelationSequence() : sequence(NULL), buffer(NULL), toa(0.0)
+  CorrelationSequence() : sequence(NULL), buffer(NULL)
   {
   }
 
   ~CorrelationSequence()
   {
     delete sequence;
+    free(buffer);
   }
 
   signalVector *sequence;
@@ -107,7 +106,8 @@ struct CorrelationSequence {
  * for SSE instructions.
  */
 struct PulseSequence {
-  PulseSequence() : c0(NULL), c1(NULL), c0_inv(NULL), empty(NULL)
+  PulseSequence() : c0(NULL), c1(NULL), c0_inv(NULL), empty(NULL),
+		    c0_buffer(NULL), c1_buffer(NULL), c0_inv_buffer(NULL)
   {
   }
 
@@ -117,17 +117,22 @@ struct PulseSequence {
     delete c1;
     delete c0_inv;
     delete empty;
+    free(c0_buffer);
+    free(c1_buffer);
   }
 
   signalVector *c0;
   signalVector *c1;
   signalVector *c0_inv;
   signalVector *empty;
+  void *c0_buffer;
+  void *c1_buffer;
+  void *c0_inv_buffer;
 };
 
 static CorrelationSequence *gMidambles[] = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
 static CorrelationSequence *gEdgeMidambles[] = {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
-static CorrelationSequence *gRACHSequences[] = {NULL,NULL,NULL};
+static CorrelationSequence *gRACHSequence = NULL;
 static PulseSequence *GSMPulse1 = NULL;
 static PulseSequence *GSMPulse4 = NULL;
 
@@ -145,15 +150,11 @@ void sigProcLibDestroy()
     delayFilters[i] = NULL;
   }
 
-  for (int i = 0; i < 3; i++) {
-    delete gRACHSequences[i];
-    gRACHSequences[i] = NULL;
-  }
-
   delete GMSKRotation1;
   delete GMSKReverseRotation1;
   delete GMSKRotation4;
   delete GMSKReverseRotation4;
+  delete gRACHSequence;
   delete GSMPulse1;
   delete GSMPulse4;
   delete dnsampler;
@@ -162,6 +163,7 @@ void sigProcLibDestroy()
   GMSKRotation4 = NULL;
   GMSKReverseRotation4 = NULL;
   GMSKReverseRotation1 = NULL;
+  gRACHSequence = NULL;
   GSMPulse1 = NULL;
   GSMPulse4 = NULL;
 }
@@ -287,7 +289,8 @@ enum ConvType {
 
 static signalVector *convolve(const signalVector *x, const signalVector *h,
                               signalVector *y, ConvType spanType,
-                              size_t start = 0, size_t len = 0)
+                              size_t start = 0, size_t len = 0,
+                              size_t step = 1, int offset = 0)
 {
   int rc;
   size_t head = 0, tail = 0;
@@ -334,7 +337,7 @@ static signalVector *convolve(const signalVector *x, const signalVector *h,
   if (y && (len > y->size()))
     return NULL;
   if (!y) {
-    y = new signalVector(len, convolve_h_alloc, free);
+    y = new signalVector(len);
     alloc = true;
   }
 
@@ -355,22 +358,22 @@ static signalVector *convolve(const signalVector *x, const signalVector *h,
     rc = convolve_real((float *) _x->begin(), _x->size(),
                        (float *) h->begin(), h->size(),
                        (float *) y->begin(), y->size(),
-                       start, len);
+                       start, len, step, offset);
   } else if (!h->isReal() && h->isAligned()) {
     rc = convolve_complex((float *) _x->begin(), _x->size(),
                           (float *) h->begin(), h->size(),
                           (float *) y->begin(), y->size(),
-                          start, len);
+                          start, len, step, offset);
   } else if (h->isReal() && !h->isAligned()) {
     rc = base_convolve_real((float *) _x->begin(), _x->size(),
                             (float *) h->begin(), h->size(),
                             (float *) y->begin(), y->size(),
-                            start, len);
+                            start, len, step, offset);
   } else if (!h->isReal() && !h->isAligned()) {
     rc = base_convolve_complex((float *) _x->begin(), _x->size(),
                                (float *) h->begin(), h->size(),
                                (float *) y->begin(), y->size(),
-                               start, len);
+                               start, len, step, offset);
   } else {
     rc = -1;
   }
@@ -397,7 +400,8 @@ static bool generateInvertC0Pulse(PulseSequence *pulse)
   if (!pulse)
     return false;
 
-  pulse->c0_inv = new signalVector((complex *) convolve_h_alloc(5), 0, 5, convolve_h_alloc, free);
+  pulse->c0_inv_buffer = convolve_h_alloc(5);
+  pulse->c0_inv = new signalVector((complex *) pulse->c0_inv_buffer, 0, 5);
   pulse->c0_inv->isReal(true);
   pulse->c0_inv->setAligned(false);
 
@@ -426,7 +430,9 @@ static bool generateC1Pulse(int sps, PulseSequence *pulse)
     return false;
   }
 
-  pulse->c1 = new signalVector((complex *) convolve_h_alloc(len), 0, len, convolve_h_alloc, free);
+  pulse->c1_buffer = convolve_h_alloc(len);
+  pulse->c1 = new signalVector((complex *)
+                                  pulse->c1_buffer, 0, len);
   pulse->c1->isReal(true);
 
   /* Enable alignment for SSE usage */
@@ -480,7 +486,8 @@ static PulseSequence *generateGSMPulse(int sps)
     len = 4;
   }
 
-  pulse->c0 = new signalVector((complex *) convolve_h_alloc(len), 0, len, convolve_h_alloc, free);
+  pulse->c0_buffer = convolve_h_alloc(len);
+  pulse->c0 = new signalVector((complex *) pulse->c0_buffer, 0, len);
   pulse->c0->isReal(true);
 
   /* Enable alingnment for SSE usage */
@@ -532,17 +539,19 @@ static PulseSequence *generateGSMPulse(int sps)
   return pulse;
 }
 
-/* Convert -1..+1 soft bits to 0..1 soft bits */
-void vectorSlicer(float *dest, const float *src, size_t len)
+bool vectorSlicer(SoftVector *x)
 {
-	size_t i;
-	for (i = 0; i < len; i++) {
-		dest[i] = 0.5 * (src[i] + 1.0f);
-		if (dest[i] > 1.0)
-			dest[i] = 1.0;
-		else if (dest[i] < 0.0)
-			dest[i] = 0.0;
-	}
+  SoftVector::iterator xP = x->begin();
+  SoftVector::iterator xPEnd = x->end();
+  while (xP < xPEnd) {
+    *xP = 0.5 * (*xP + 1.0f);
+    if (*xP > 1.0)
+      *xP = 1.0;
+    if (*xP < 0.0)
+      *xP = 0.0;
+    xP++;
+  }
+  return true;
 }
 
 static signalVector *rotateBurst(const BitVector &wBurst,
@@ -1007,7 +1016,7 @@ static void generateDelayFilters()
 
   for (int i = 0; i < DELAYFILTS; i++) {
     data = (complex *) convolve_h_alloc(h_len);
-    h = new signalVector(data, 0, h_len, convolve_h_alloc, free);
+    h = new signalVector(data, 0, h_len);
     h->setAligned(true);
     h->isReal(true);
 
@@ -1093,17 +1102,17 @@ static complex interpolatePoint(const signalVector &inSig, float ix)
   if (start < 0) start = 0;
   int end = (int) (floor(ix) + 11);
   if ((unsigned) end > inSig.size()-1) end = inSig.size()-1;
-
+  
   complex pVal = 0.0;
   if (!inSig.isReal()) {
-    for (int i = start; i < end; i++)
+    for (int i = start; i < end; i++) 
       pVal += inSig[i] * sinc(M_PI_F*(i-ix));
   }
   else {
-    for (int i = start; i < end; i++)
+    for (int i = start; i < end; i++) 
       pVal += inSig[i].real() * sinc(M_PI_F*(i-ix));
   }
-
+   
   return pVal;
 }
 
@@ -1148,12 +1157,12 @@ static complex peakDetect(const signalVector &rxBurst,
   // to save computation, we'll use early-late balancing
   float earlyIndex = maxIndex-1;
   float lateIndex = maxIndex+1;
-
+  
   float incr = 0.5;
   while (incr > 1.0/1024.0) {
     complex earlyP = interpolatePoint(rxBurst,earlyIndex);
     complex lateP =  interpolatePoint(rxBurst,lateIndex);
-    if (earlyP < lateP)
+    if (earlyP < lateP) 
       earlyIndex += incr;
     else if (earlyP > lateP)
       earlyIndex -= incr;
@@ -1241,7 +1250,7 @@ static bool generateMidamble(int sps, int tsc)
 
   // NOTE: Because ideal TSC 16-bit midamble is 66 symbols into burst,
   //       the ideal TSC has an + 180 degree phase shift,
-  //       due to the pi/2 frequency shift, that
+  //       due to the pi/2 frequency shift, that 
   //       needs to be accounted for.
   //       26-midamble is 61 symbols into burst, has +90 degree phase shift.
   scaleVector(*midMidamble, complex(-1.0, 0.0));
@@ -1251,9 +1260,10 @@ static bool generateMidamble(int sps, int tsc)
 
   /* For SSE alignment, reallocate the midamble sequence on 16-byte boundary */
   data = (complex *) convolve_h_alloc(midMidamble->size());
-  _midMidamble = new signalVector(data, 0, midMidamble->size(), convolve_h_alloc, free);
+  _midMidamble = new signalVector(data, 0, midMidamble->size());
   _midMidamble->setAligned(true);
-  midMidamble->copyTo(*_midMidamble);
+  memcpy(_midMidamble->begin(), midMidamble->begin(),
+	 midMidamble->size() * sizeof(complex));
 
   autocorr = convolve(midamble, _midMidamble, NULL, NO_DELAY);
   if (!autocorr) {
@@ -1262,6 +1272,7 @@ static bool generateMidamble(int sps, int tsc)
   }
 
   gMidambles[tsc] = new CorrelationSequence;
+  gMidambles[tsc]->buffer = data;
   gMidambles[tsc]->sequence = _midMidamble;
   gMidambles[tsc]->gain = peakDetect(*autocorr, &toa, NULL);
 
@@ -1306,12 +1317,14 @@ static CorrelationSequence *generateEdgeMidamble(int tsc)
   conjugateVector(*midamble);
 
   data = (complex *) convolve_h_alloc(midamble->size());
-  _midamble = new signalVector(data, 0, midamble->size(), convolve_h_alloc, free);
+  _midamble = new signalVector(data, 0, midamble->size());
   _midamble->setAligned(true);
-  midamble->copyTo(*_midamble);
+  memcpy(_midamble->begin(), midamble->begin(),
+	 midamble->size() * sizeof(complex));
 
   /* Channel gain is an empirically measured value */
   seq = new CorrelationSequence;
+  seq->buffer = data;
   seq->sequence = _midamble;
   seq->gain = Complex<float>(-19.6432, 19.5006) / 1.18;
   seq->toa = 0;
@@ -1321,7 +1334,7 @@ static CorrelationSequence *generateEdgeMidamble(int tsc)
   return seq;
 }
 
-static bool generateRACHSequence(CorrelationSequence **seq, const BitVector &bv, int sps)
+static bool generateRACHSequence(int sps)
 {
   bool status = true;
   float toa;
@@ -1329,14 +1342,13 @@ static bool generateRACHSequence(CorrelationSequence **seq, const BitVector &bv,
   signalVector *autocorr = NULL;
   signalVector *seq0 = NULL, *seq1 = NULL, *_seq1 = NULL;
 
-  if (*seq != NULL)
-    delete *seq;
+  delete gRACHSequence;
 
-  seq0 = modulateBurst(bv, 0, sps, false);
+  seq0 = modulateBurst(gRACHSynchSequence, 0, sps, false);
   if (!seq0)
     return false;
 
-  seq1 = modulateBurst(bv.segment(0, 40), 0, sps, true);
+  seq1 = modulateBurst(gRACHSynchSequence.segment(0, 40), 0, sps, true);
   if (!seq1) {
     status = false;
     goto release;
@@ -1346,9 +1358,9 @@ static bool generateRACHSequence(CorrelationSequence **seq, const BitVector &bv,
 
   /* For SSE alignment, reallocate the midamble sequence on 16-byte boundary */
   data = (complex *) convolve_h_alloc(seq1->size());
-  _seq1 = new signalVector(data, 0, seq1->size(), convolve_h_alloc, free);
+  _seq1 = new signalVector(data, 0, seq1->size());
   _seq1->setAligned(true);
-  seq1->copyTo(*_seq1);
+  memcpy(_seq1->begin(), seq1->begin(), seq1->size() * sizeof(complex));
 
   autocorr = convolve(seq0, _seq1, autocorr, NO_DELAY);
   if (!autocorr) {
@@ -1356,18 +1368,19 @@ static bool generateRACHSequence(CorrelationSequence **seq, const BitVector &bv,
     goto release;
   }
 
-  *seq = new CorrelationSequence;
-  (*seq)->sequence = _seq1;
-  (*seq)->gain = peakDetect(*autocorr, &toa, NULL);
+  gRACHSequence = new CorrelationSequence;
+  gRACHSequence->sequence = _seq1;
+  gRACHSequence->buffer = data;
+  gRACHSequence->gain = peakDetect(*autocorr, &toa, NULL);
 
   /* For 1 sps only
    *     (Half of correlation length - 1) + midpoint of pulse shaping filer
    *     20.5 = (40 / 2 - 1) + 1.5
    */
   if (sps == 1)
-    (*seq)->toa = toa - 20.5;
+    gRACHSequence->toa = toa - 20.5;
   else
-    (*seq)->toa = 0.0;
+    gRACHSequence->toa = 0.0;
 
 release:
   delete autocorr;
@@ -1377,7 +1390,7 @@ release:
   if (!status) {
     delete _seq1;
     free(data);
-    *seq = NULL;
+    gRACHSequence = NULL;
   }
 
   return status;
@@ -1444,7 +1457,7 @@ static signalVector *downsampleBurst(const signalVector &burst)
 {
   signalVector in(DOWNSAMPLE_IN_LEN, dnsampler->len());
   signalVector *out = new signalVector(DOWNSAMPLE_OUT_LEN);
-  burst.copyToSegment(in, 0, DOWNSAMPLE_IN_LEN);
+  memcpy(in.begin(), burst.begin(), DOWNSAMPLE_IN_LEN * 2 * sizeof(float));
 
   if (dnsampler->rotate((float *) in.begin(), DOWNSAMPLE_IN_LEN,
                         (float *) out->begin(), DOWNSAMPLE_OUT_LEN) < 0) {
@@ -1455,33 +1468,6 @@ static signalVector *downsampleBurst(const signalVector &burst)
   return out;
 };
 
-/*
- * Computes C/I (Carrier-to-Interference ratio) in dB (deciBels).
- * It is computed from the training sequence of each received burst,
- * by comparing the "ideal" training sequence with the actual one.
- */
-static float computeCI(const signalVector *burst, CorrelationSequence *sync,
-                       float toa, int start, complex xcorr)
-{
-  float S, C;
-  int ps;
-
-  /* Integer position where the sequence starts */
-  ps = start + 1 - sync->sequence->size() + (int)roundf(toa);
-
-  /* Estimate Signal power */
-  S = 0.0f;
-  for (int i=0, j=ps; i<(int)sync->sequence->size(); i++,j++)
-    S += (*burst)[j].norm2();
-  S /= sync->sequence->size();
-
-  /* Esimate Carrier power */
-  C = xcorr.norm2() / ((sync->sequence->size() - 1) * sync->gain.abs());
-
-  /* Interference = Signal - Carrier, so C/I = C / (S - C) */
-  return 3.0103f * log2f(C / (S - C));
-}
-
 /*
  * Detect a burst based on correlation and peak-to-average ratio
  *
@@ -1492,13 +1478,11 @@ static float computeCI(const signalVector *burst, CorrelationSequence *sync,
  */
 static int detectBurst(const signalVector &burst,
                        signalVector &corr, CorrelationSequence *sync,
-                       float thresh, int sps, int start, int len,
-                       struct estim_burst_params *ebp)
+                       float thresh, int sps, complex *amp, float *toa,
+                       int start, int len)
 {
   const signalVector *corr_in;
   signalVector *dec = NULL;
-  complex xcorr;
-  int rc = 1;
 
   if (sps == 4) {
     dec = downsampleBurst(burst);
@@ -1510,43 +1494,36 @@ static int detectBurst(const signalVector &burst,
 
   /* Correlate */
   if (!convolve(corr_in, sync->sequence, &corr,
-                CUSTOM, start, len)) {
-    rc = -1;
-    goto del_ret;
+                CUSTOM, start, len, 1, 0)) {
+    delete dec;
+    return -1;
   }
 
+  delete dec;
+
   /* Running at the downsampled rate at this point */
   sps = 1;
 
   /* Peak detection - place restrictions at correlation edges */
-  ebp->amp = fastPeakDetect(corr, &ebp->toa);
+  *amp = fastPeakDetect(corr, toa);
 
-  if ((ebp->toa < 3 * sps) || (ebp->toa > len - 3 * sps)) {
-    rc = 0;
-    goto del_ret;
-  }
+  if ((*toa < 3 * sps) || (*toa > len - 3 * sps))
+    return 0;
 
-  /* Peak-to-average ratio */
-  if (computePeakRatio(&corr, sps, ebp->toa, ebp->amp) < thresh) {
-    rc = 0;
-    goto del_ret;
-  }
+  /* Peak -to-average ratio */
+  if (computePeakRatio(&corr, sps, *toa, *amp) < thresh)
+    return 0;
 
-  /* Refine TOA and correlation value */
-  xcorr = peakDetect(corr, &ebp->toa, NULL);
-
-  /* Compute C/I */
-  ebp->ci = computeCI(corr_in, sync, ebp->toa, start, xcorr);
+  /* Compute peak-to-average ratio. Reject if we don't have enough values */
+  *amp = peakDetect(corr, toa, NULL);
 
   /* Normalize our channel gain */
-  ebp->amp = xcorr / sync->gain;
+  *amp = *amp / sync->gain;
 
   /* Compensate for residuate time lag */
-  ebp->toa = ebp->toa - sync->toa;
+  *toa = *toa - sync->toa;
 
-del_ret:
-  delete dec;
-  return rc;
+  return 1;
 }
 
 static float maxAmplitude(const signalVector &burst)
@@ -1570,10 +1547,13 @@ static float maxAmplitude(const signalVector &burst)
  *   head: Search symbols before target
  *   tail: Search symbols after target
  */
-static int detectGeneralBurst(const signalVector &rxBurst, float thresh, int sps,
+static int detectGeneralBurst(const signalVector &rxBurst,
+                              float thresh,
+                              int sps,
+                              complex &amp,
+                              float &toa,
                               int target, int head, int tail,
-                              CorrelationSequence *sync,
-                              struct estim_burst_params *ebp)
+                              CorrelationSequence *sync)
 {
   int rc, start, len;
   bool clipping = false;
@@ -1595,24 +1575,23 @@ static int detectGeneralBurst(const signalVector &rxBurst, float thresh, int sps
   signalVector corr(len);
 
   rc = detectBurst(rxBurst, corr, sync,
-                   thresh, sps, start, len, ebp);
+                   thresh, sps, &amp, &toa, start, len);
   if (rc < 0) {
     return -SIGERR_INTERNAL;
   } else if (!rc) {
-    ebp->amp = 0.0f;
-    ebp->toa = 0.0f;
-    ebp->ci = 0.0f;
+    amp = 0.0f;
+    toa = 0.0f;
     return clipping?-SIGERR_CLIP:SIGERR_NONE;
   }
 
   /* Subtract forward search bits from delay */
-  ebp->toa -= head;
+  toa -= head;
 
   return 1;
 }
 
 
-/*
+/* 
  * RACH burst detection
  *
  * Correlation window parameters:
@@ -1621,29 +1600,23 @@ static int detectGeneralBurst(const signalVector &rxBurst, float thresh, int sps
  *   tail: Search 8 symbols + maximum expected delay
  */
 static int detectRACHBurst(const signalVector &burst, float threshold, int sps,
-                           unsigned max_toa, bool ext, struct estim_burst_params *ebp)
+                           complex &amplitude, float &toa, unsigned max_toa)
 {
   int rc, target, head, tail;
-  int i, num_seq;
+  CorrelationSequence *sync;
 
   target = 8 + 40;
   head = 8;
   tail = 8 + max_toa;
-  num_seq = ext ? 3 : 1;
+  sync = gRACHSequence;
 
-  for (i = 0; i < num_seq; i++) {
-    rc = detectGeneralBurst(burst, threshold, sps, target, head, tail,
-                            gRACHSequences[i], ebp);
-    if (rc > 0) {
-      ebp->tsc = i;
-      break;
-    }
-  }
+  rc = detectGeneralBurst(burst, threshold, sps, amplitude, toa,
+                          target, head, tail, sync);
 
   return rc;
 }
 
-/*
+/* 
  * Normal burst detection
  *
  * Correlation window parameters:
@@ -1652,7 +1625,7 @@ static int detectRACHBurst(const signalVector &burst, float threshold, int sps,
  *   tail: Search 6 symbols + maximum expected delay
  */
 static int analyzeTrafficBurst(const signalVector &burst, unsigned tsc, float threshold,
-                               int sps, unsigned max_toa, struct estim_burst_params *ebp)
+                               int sps, complex &amplitude, float &toa, unsigned max_toa)
 {
   int rc, target, head, tail;
   CorrelationSequence *sync;
@@ -1665,13 +1638,13 @@ static int analyzeTrafficBurst(const signalVector &burst, unsigned tsc, float th
   tail = 6 + max_toa;
   sync = gMidambles[tsc];
 
-  ebp->tsc = tsc;
-  rc = detectGeneralBurst(burst, threshold, sps, target, head, tail, sync, ebp);
+  rc = detectGeneralBurst(burst, threshold, sps, amplitude, toa,
+                          target, head, tail, sync);
   return rc;
 }
 
 static int detectEdgeBurst(const signalVector &burst, unsigned tsc, float threshold,
-                           int sps, unsigned max_toa, struct estim_burst_params *ebp)
+                           int sps, complex &amplitude, float &toa, unsigned max_toa)
 {
   int rc, target, head, tail;
   CorrelationSequence *sync;
@@ -1684,31 +1657,32 @@ static int detectEdgeBurst(const signalVector &burst, unsigned tsc, float thresh
   tail = 6 + max_toa;
   sync = gEdgeMidambles[tsc];
 
-  ebp->tsc = tsc;
-  rc = detectGeneralBurst(burst, threshold, sps,
-                          target, head, tail, sync, ebp);
+  rc = detectGeneralBurst(burst, threshold, sps, amplitude, toa,
+                          target, head, tail, sync);
   return rc;
 }
 
 int detectAnyBurst(const signalVector &burst, unsigned tsc, float threshold,
-                   int sps, CorrType type, unsigned max_toa,
-                   struct estim_burst_params *ebp)
+                   int sps, CorrType type, complex &amp, float &toa,
+                   unsigned max_toa)
 {
   int rc = 0;
 
   switch (type) {
   case EDGE:
-    rc = detectEdgeBurst(burst, tsc, threshold, sps, max_toa, ebp);
+    rc = detectEdgeBurst(burst, tsc, threshold, sps,
+                         amp, toa, max_toa);
     if (rc > 0)
       break;
     else
       type = TSC;
   case TSC:
-    rc = analyzeTrafficBurst(burst, tsc, threshold, sps, max_toa, ebp);
+    rc = analyzeTrafficBurst(burst, tsc, threshold, sps,
+                             amp, toa, max_toa);
     break;
-  case EXT_RACH:
   case RACH:
-    rc = detectRACHBurst(burst, threshold, sps, max_toa, type == EXT_RACH, ebp);
+    rc = detectRACHBurst(burst, threshold, sps, amp, toa,
+                         max_toa);
     break;
   default:
     LOG(ERR) << "Invalid correlation type";
@@ -1886,10 +1860,7 @@ bool sigProcLibSetup()
   GSMPulse1 = generateGSMPulse(1);
   GSMPulse4 = generateGSMPulse(4);
 
-  generateRACHSequence(&gRACHSequences[0], gRACHSynchSequenceTS0, 1);
-  generateRACHSequence(&gRACHSequences[1], gRACHSynchSequenceTS1, 1);
-  generateRACHSequence(&gRACHSequences[2], gRACHSynchSequenceTS2, 1);
-
+  generateRACHSequence(1);
   for (int tsc = 0; tsc < 8; tsc++) {
     generateMidamble(1, tsc);
     gEdgeMidambles[tsc] = generateEdgeMidamble(tsc);

Transceiver52M/sigProcLib.h

@@ -29,7 +29,6 @@
 enum CorrType{
   OFF,         ///< timeslot is off
   TSC,         ///< timeslot should contain a normal burst
-  EXT_RACH,    ///< timeslot should contain an extended access burst
   RACH,        ///< timeslot should contain an access burst
   EDGE,        ///< timeslot should contain an EDGE burst
   IDLE         ///< timeslot is an idle (or dummy) burst
@@ -59,7 +58,7 @@ bool sigProcLibSetup();
 void sigProcLibDestroy(void);
 
 /** Operate soft slicer on a soft-bit vector */
-void vectorSlicer(float *dest, const float *src, size_t len);
+bool vectorSlicer(SoftVector *x);
 
 /** GMSK modulate a GSM burst of bits */
 signalVector *modulateBurst(const BitVector &wBurst,
@@ -101,26 +100,15 @@ void scaleVector(signalVector &x,
 */
 float energyDetect(const signalVector &rxBurst,
                    unsigned windowLength);
-
-/** Struct used to fill out parameters in detectAnyBurst(): estimated burst parameters
-@param amplitude The estimated amplitude of received TSC burst.
-@param toa The estimated time-of-arrival of received TSC burst (in symbols).
-@param tsc The TSC used to detect the burst.
-*/
-struct estim_burst_params {
-        complex amp;
-        float toa;
-        uint8_t tsc;
-        float ci;
-};
 /**
         8-PSK/GMSK/RACH burst detector
         @param burst The received GSM burst of interest
         @param tsc Midamble type (0..7) also known as TSC
         @param threshold The threshold that the received burst's post-correlator SNR is compared against to determine validity.
         @param sps The number of samples per GSM symbol.
+        @param amplitude The estimated amplitude of received TSC burst.
+        @param toa The estimate time-of-arrival of received TSC burst (in symbols).
         @param max_toa The maximum expected time-of-arrival (in symbols).
-        @param ebp The estimated parameters of the detected burst.
         @return positive value (CorrType) if threshold value is reached,
                 negative value (-SignalError) on error,
                 zero (SIGERR_NONE) if no burst is detected
@@ -130,8 +118,9 @@ int detectAnyBurst(const signalVector &burst,
                    float threshold,
                    int sps,
                    CorrType type,
-                   unsigned max_toa,
-                   struct estim_burst_params *ebp);
+                   complex &amp,
+                   float &toa,
+                   unsigned max_toa);
 
 /** Demodulate burst basde on type and output soft bits */
 SoftVector *demodAnyBurst(const signalVector &burst, int sps,

Transceiver52M/signalVector.cpp

@@ -1,20 +1,20 @@
 #include "signalVector.h"
 
-signalVector::signalVector(size_t size, vector_alloc_func wAllocFunc, vector_free_func wFreeFunc)
-	: Vector<complex>(size, wAllocFunc, wFreeFunc),
+signalVector::signalVector(size_t size)
+	: Vector<complex>(size),
 	  real(false), aligned(false), symmetry(NONE)
 {
 }
 
-signalVector::signalVector(size_t size, size_t start, vector_alloc_func wAllocFunc, vector_free_func wFreeFunc)
-	: Vector<complex>(size + start, wAllocFunc, wFreeFunc),
+signalVector::signalVector(size_t size, size_t start)
+	: Vector<complex>(size + start),
 	  real(false), aligned(false), symmetry(NONE)
 {
 	mStart = mData + start;
 }
 
-signalVector::signalVector(complex *data, size_t start, size_t span, vector_alloc_func wAllocFunc, vector_free_func wFreeFunc)
-	: Vector<complex>(data, data + start, data + start + span, wAllocFunc, wFreeFunc),
+signalVector::signalVector(complex *data, size_t start, size_t span)
+	: Vector<complex>(NULL, data + start, data + start + span),
 	  real(false), aligned(false), symmetry(NONE)
 {
 }
@@ -41,14 +41,7 @@ signalVector::signalVector(const signalVector &vector,
 void signalVector::operator=(const signalVector& vector)
 {
 	resize(vector.size() + vector.getStart());
-
-	unsigned int i;
-	complex *dst = mData;
-	complex *src = vector.mData;
-	for (i = 0; i < size(); i++, src++, dst++)
-		*dst = *src;
-	/* TODO: optimize for non non-trivially copyable types: */
-	/*memcpy(mData, vector.mData, bytes()); */
+	memcpy(mData, vector.mData, bytes());
 	mStart = mData + vector.getStart();
 }
 
@@ -65,13 +58,8 @@ size_t signalVector::getStart() const
 size_t signalVector::updateHistory()
 {
 	size_t num = getStart();
-	unsigned int i;
-	complex *dst = mData;
-	complex *src = mStart + this->size() - num;
-	for (i = 0; i < num; i++, src++, dst++)
-		*dst = *src;
-	/* TODO: optimize for non non-trivially copyable types: */
-	/*memmove(mData, mStart + this->size() - num, num * sizeof(complex)); */
+
+	memmove(mData, mStart + this->size() - num, num * sizeof(complex));
 
 	return num;
 }

Transceiver52M/signalVector.h

@@ -13,13 +13,13 @@ enum Symmetry {
 class signalVector: public Vector<complex> {
 public:
 	/** Default constructor */
-	signalVector(size_t size = 0, vector_alloc_func wAllocFunc = NULL, vector_free_func wFreeFunc = NULL);
+	signalVector(size_t size = 0);
 
 	/** Construct with head room */
-	signalVector(size_t size, size_t start, vector_alloc_func wAllocFunc = NULL, vector_free_func wFreeFunc = NULL);
+	signalVector(size_t size, size_t start);
 
 	/** Construct from existing buffer data (buffer not managed) */
-	signalVector(complex *data, size_t start, size_t span, vector_alloc_func wAllocFunc = NULL, vector_free_func wFreeFunc = NULL);
+	signalVector(complex *data, size_t start, size_t span);
 
 	/** Construct by from existing vector */
 	signalVector(const signalVector &vector);

configure.ac

@@ -32,7 +32,7 @@ AC_CANONICAL_BUILD
 AC_CANONICAL_HOST
 AC_CANONICAL_TARGET
 
-AM_INIT_AUTOMAKE([foreign subdir-objects])
+AM_INIT_AUTOMAKE([subdir-objects])
 
 dnl Linux kernel KBuild style compile messages
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
@@ -49,7 +49,6 @@ AC_PROG_LN_S
 AC_PROG_MAKE_SET
 AC_PROG_INSTALL
 AC_PATH_PROG([RM_PROG], [rm])
-AC_LANG([C++])
 
 dnl check for pkg-config (explained in detail in libosmocore/configure.ac)
 AC_PATH_PROG(PKG_CONFIG_INSTALLED, pkg-config, no)
@@ -75,9 +74,9 @@ AC_TYPE_SIZE_T
 AC_HEADER_TIME
 AC_C_BIGENDIAN
 
-PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.12.0)
-PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.12.0)
-PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 0.12.0)
+PKG_CHECK_MODULES(LIBOSMOCORE, libosmocore >= 0.11.0)
+PKG_CHECK_MODULES(LIBOSMOVTY, libosmovty >= 0.11.0)
+PKG_CHECK_MODULES(LIBOSMOCTRL, libosmoctrl >= 0.11.0)
 
 AC_ARG_ENABLE(sanitize,
 	[AS_HELP_STRING(
@@ -91,25 +90,6 @@ then
 	LDFLAGS="$LDFLAGS -fsanitize=address -fsanitize=undefined"
 fi
 
-AC_ARG_ENABLE(werror,
-	[AS_HELP_STRING(
-		[--enable-werror],
-		[Turn all compiler warnings into errors, with exceptions:
-		 a) deprecation (allow upstream to mark deprecation without breaking builds);
-		 b) "#warning" pragmas (allow to remind ourselves of errors without breaking builds)
-		]
-	)],
-	[werror=$enableval], [werror="no"])
-if test x"$werror" = x"yes"
-then
-	WERROR_FLAGS="-Werror"
-	WERROR_FLAGS+=" -Wno-error=deprecated -Wno-error=deprecated-declarations"
-	WERROR_FLAGS+=" -Wno-error=cpp" # "#warning"
-	CFLAGS="$CFLAGS $WERROR_FLAGS"
-	CPPFLAGS="$CPPFLAGS $WERROR_FLAGS"
-fi
-
-
 AC_ARG_WITH(uhd, [
     AS_HELP_STRING([--with-uhd],
         [enable UHD based transceiver])
@@ -122,7 +102,7 @@ AC_ARG_WITH(usrp1, [
 
 AC_ARG_WITH(lms, [
     AS_HELP_STRING([--with-lms],
-        [enable LimeSuite based transceiver])
+        [enable LimeSuite gnuradio based transceiver])
 ])
 
 AC_ARG_WITH(singledb, [
@@ -155,8 +135,6 @@ AS_IF([test "x$with_neon_vfpv4" = "xyes"], [
 ])
 
 AS_IF([test "x$with_usrp1" = "xyes"], [
-    AC_CHECK_HEADER([boost/config.hpp],[],
-        [AC_MSG_ERROR([boost/config.hpp not found, install e.g. libboost-dev])])
     PKG_CHECK_MODULES(USRP, usrp >= 3.3)
 ])
 
@@ -222,63 +200,8 @@ AM_CONDITIONAL(ARCH_ARM_A15, [test "x$with_neon_vfpv4" = "xyes"])
 PKG_CHECK_MODULES(LIBUSB, libusb-1.0)
 PKG_CHECK_MODULES(FFTWF, fftw3f)
 
-# Generate manuals
-AC_ARG_ENABLE(manuals,
-	[AS_HELP_STRING(
-		[--enable-manuals],
-		[Generate manual PDFs [default=no]],
-	)],
-	[osmo_ac_build_manuals=$enableval], [osmo_ac_build_manuals="no"])
-AM_CONDITIONAL([BUILD_MANUALS], [test x"$osmo_ac_build_manuals" = x"yes"])
-AC_ARG_VAR(OSMO_GSM_MANUALS_DIR, [path to common osmo-gsm-manuals files, overriding pkg-config and "../osmo-gsm-manuals"
-	fallback])
-if test x"$osmo_ac_build_manuals" = x"yes"
-then
-	# Find OSMO_GSM_MANUALS_DIR (env, pkg-conf, fallback)
-	if test -n "$OSMO_GSM_MANUALS_DIR"; then
-		echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (from env)"
-	else
-		OSMO_GSM_MANUALS_DIR="$($PKG_CONFIG osmo-gsm-manuals --variable=osmogsmmanualsdir 2>/dev/null)"
-		if test -n "$OSMO_GSM_MANUALS_DIR"; then
-			echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (from pkg-conf)"
-		else
-			OSMO_GSM_MANUALS_DIR="../osmo-gsm-manuals"
-			echo "checking for OSMO_GSM_MANUALS_DIR... $OSMO_GSM_MANUALS_DIR (fallback)"
-		fi
-	fi
-	if ! test -d "$OSMO_GSM_MANUALS_DIR"; then
-		AC_MSG_ERROR("OSMO_GSM_MANUALS_DIR does not exist! Install osmo-gsm-manuals or set OSMO_GSM_MANUALS_DIR.")
-	fi
-
-	# Find and run check-depends
-	CHECK_DEPENDS="$OSMO_GSM_MANUALS_DIR/check-depends.sh"
-	if ! test -x "$CHECK_DEPENDS"; then
-		CHECK_DEPENDS="osmo-gsm-manuals-check-depends"
-	fi
-	if ! $CHECK_DEPENDS; then
-		AC_MSG_ERROR("missing dependencies for --enable-manuals")
-	fi
-
-	# Put in Makefile with absolute path
-	OSMO_GSM_MANUALS_DIR="$(realpath "$OSMO_GSM_MANUALS_DIR")"
-	AC_SUBST([OSMO_GSM_MANUALS_DIR])
-fi
-
-    # https://www.freedesktop.org/software/systemd/man/daemon.html
-    AC_ARG_WITH([systemdsystemunitdir],
-         [AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files])],,
-         [with_systemdsystemunitdir=auto])
-    AS_IF([test "x$with_systemdsystemunitdir" = "xyes" -o "x$with_systemdsystemunitdir" = "xauto"], [
-         def_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)
-
-         AS_IF([test "x$def_systemdsystemunitdir" = "x"],
-       [AS_IF([test "x$with_systemdsystemunitdir" = "xyes"],
-        [AC_MSG_ERROR([systemd support requested but pkg-config unable to query systemd package])])
-        with_systemdsystemunitdir=no],
-       [with_systemdsystemunitdir="$def_systemdsystemunitdir"])])
-    AS_IF([test "x$with_systemdsystemunitdir" != "xno"],
-          [AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])])
-    AM_CONDITIONAL([HAVE_SYSTEMD], [test "x$with_systemdsystemunitdir" != "xno"])
+AC_CHECK_HEADER([boost/config.hpp],[],
+    [AC_MSG_ERROR([boost/config.hpp not found, install e.g. libboost-dev])])
 
 AC_MSG_RESULT([CPPFLAGS="$CPPFLAGS"])
 AC_MSG_RESULT([CFLAGS="$CFLAGS"])
@@ -296,18 +219,12 @@ AC_CONFIG_FILES([\
     Transceiver52M/arch/arm/Makefile \
     Transceiver52M/arch/x86/Makefile \
     Transceiver52M/device/Makefile \
-    Transceiver52M/device/common/Makefile \
     Transceiver52M/device/uhd/Makefile \
     Transceiver52M/device/usrp1/Makefile \
     Transceiver52M/device/lms/Makefile \
     tests/Makefile \
     tests/CommonLibs/Makefile \
     tests/Transceiver52M/Makefile \
-    doc/Makefile \
-    doc/examples/Makefile \
-    contrib/Makefile \
-    contrib/systemd/Makefile \
 ])
 
-AC_OUTPUT(
-	doc/manuals/Makefile)
+AC_OUTPUT

contrib/Makefile.am

@@ -1 +0,0 @@
-SUBDIRS = systemd

contrib/jenkins.sh

@@ -1,12 +1,4 @@
 #!/bin/sh
-# jenkins build helper script for osmo-trx.  This is how we build on jenkins.osmocom.org
-#
-# environment variables:
-# * INSTR: configure the CPU instruction set ("--with-sse", "--with-neon" or "--with-neon-vfpv4")
-# * WITH_MANUALS: build manual PDFs if set to "1"
-# * PUBLISH: upload manuals after building if set to "1" (ignored without WITH_MANUALS = "1")
-# * INSIDE_CHROOT: (used internally) set to "1" when the script runs with QEMU in an ARM chroot
-#
 set -ex
 
 substr() { [ -z "${2##*$1*}" ]; }
@@ -72,19 +64,10 @@ fi
 mkdir "$deps" || true
 
 osmo-build-dep.sh libosmocore "" "--enable-sanitize --disable-doxygen --disable-pcsc"
-PARALLEL_MAKE="" osmo-build-dep.sh libusrp
+osmo-build-dep.sh libusrp
 
 export PKG_CONFIG_PATH="$inst/lib/pkgconfig:$PKG_CONFIG_PATH"
 export LD_LIBRARY_PATH="$inst/lib"
-export PATH="$inst/bin:$PATH"
-
-CONFIG="--enable-sanitize --enable-werror --with-uhd --with-usrp1 --with-lms $INSTR"
-
-# Additional configure options and depends
-if [ "$WITH_MANUALS" = "1" ]; then
-	osmo-build-dep.sh osmo-gsm-manuals
-	CONFIG="$CONFIG --enable-manuals"
-fi
 
 set +x
 echo
@@ -96,16 +79,9 @@ set -x
 
 cd "$base"
 autoreconf --install --force
-./configure $CONFIG
+./configure --enable-sanitize --with-uhd --with-usrp1 $INSTR
 $MAKE $PARALLEL_MAKE
 $MAKE check \
   || cat-testlogs.sh
-DISTCHECK_CONFIGURE_FLAGS="$CONFIG" $MAKE distcheck \
-  || cat-testlogs.sh
 
-if [ "$WITH_MANUALS" = "1" ] && [ "$PUBLISH" = "1" ]; then
-	make -C "$base/doc/manuals" publish
-fi
-
-$MAKE maintainer-clean
 osmo-clean-workspace.sh

contrib/systemd/Makefile.am

@@ -1,22 +0,0 @@
-EXTRA_DIST = \
-  osmo-trx-lms.service \
-  osmo-trx-uhd.service \
-  osmo-trx-usrp1.service
-
-if HAVE_SYSTEMD
-SYSTEMD_SERVICES =
-
-if DEVICE_UHD
-SYSTEMD_SERVICES += osmo-trx-uhd.service
-endif
-
-if DEVICE_USRP1
-SYSTEMD_SERVICES += osmo-trx-usrp1.service
-endif
-
-if DEVICE_LMS
-SYSTEMD_SERVICES += osmo-trx-lms.service
-endif
-
-systemdsystemunit_DATA = $(SYSTEMD_SERVICES)
-endif # HAVE_SYSTEMD

contrib/systemd/osmo-trx-lms.service

@@ -1,11 +0,0 @@
-[Unit]
-Description=Osmocom SDR BTS L1 Transceiver (LimeSuite backend)
-
-[Service]
-Type=simple
-Restart=always
-ExecStart=/usr/bin/osmo-trx-lms -C /etc/osmocom/osmo-trx-lms.cfg
-RestartSec=2
-
-[Install]
-WantedBy=multi-user.target