Adding in the missing Transceiver52M directory
git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@2307 19bc5d8c-e614-43d4-8b26-e1612bc8e597
diff --git a/Transceiver52M/DummyLoad.cpp b/Transceiver52M/DummyLoad.cpp
new file mode 100644
index 0000000..d11226e
--- /dev/null
+++ b/Transceiver52M/DummyLoad.cpp
@@ -0,0 +1,146 @@
+/*
+* Copyright 2008, 2009 Free Software Foundation, Inc.
+*
+* This software is distributed under the terms of the GNU 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 General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+/*
+ Compilation Flags
+
+ SWLOOPBACK compile for software loopback testing
+*/
+
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include "Threads.h"
+#include "DummyLoad.h"
+
+#include <Logger.h>
+
+
+using namespace std;
+
+
+
+int DummyLoad::loadBurst(short *wDummyBurst, int len) {
+ dummyBurst = wDummyBurst;
+ dummyBurstSz = len;
+}
+
+
+DummyLoad::DummyLoad (double _desiredSampleRate)
+{
+ LOG(INFO) << "creating USRP device...";
+ sampleRate = _desiredSampleRate;
+}
+
+void DummyLoad::updateTime(void) {
+ gettimeofday(&currTime,NULL);
+ double timeElapsed = (currTime.tv_sec - startTime.tv_sec)*1.0e6 +
+ (currTime.tv_usec - startTime.tv_usec);
+ currstamp = (TIMESTAMP) floor(timeElapsed/(1.0e6/sampleRate));
+}
+
+bool DummyLoad::make(bool wSkipRx)
+{
+
+ samplesRead = 0;
+ samplesWritten = 0;
+ return true;
+}
+
+bool DummyLoad::start()
+{
+ LOG(INFO) << "starting USRP...";
+ underrun = false;
+ gettimeofday(&startTime,NULL);
+ dummyBurstCursor = 0;
+ return true;
+}
+
+bool DummyLoad::stop()
+{
+ return true;
+}
+
+
+// NOTE: Assumes sequential reads
+int DummyLoad::readSamples(short *buf, int len, bool *overrun,
+ TIMESTAMP timestamp,
+ bool *wUnderrun,
+ unsigned *RSSI)
+{
+ updateTime();
+ underrunLock.lock();
+ *wUnderrun = underrun;
+ underrunLock.unlock();
+ if (currstamp+len < timestamp) {
+ usleep(100);
+ return NULL;
+ }
+ else if (currstamp < timestamp) {
+ usleep(100);
+ return NULL;
+ }
+ else if (timestamp+len < currstamp) {
+ memcpy(buf,dummyBurst+dummyBurstCursor*2,sizeof(short)*2*(dummyBurstSz-dummyBurstCursor));
+ int retVal = dummyBurstSz-dummyBurstCursor;
+ dummyBurstCursor = 0;
+ return retVal;
+ }
+ else if (timestamp + len > currstamp) {
+ int amount = timestamp + len - currstamp;
+ if (amount < dummyBurstSz-dummyBurstCursor) {
+ memcpy(buf,dummyBurst+dummyBurstCursor*2,sizeof(short)*2*amount);
+ dummyBurstCursor += amount;
+ return amount;
+ }
+ else {
+ memcpy(buf,dummyBurst+dummyBurstCursor*2,sizeof(short)*2*(dummyBurstSz-dummyBurstCursor));
+ int retVal = dummyBurstSz-dummyBurstCursor;
+ dummyBurstCursor = 0;
+ return retVal;
+ }
+ }
+ return 0;
+}
+
+int DummyLoad::writeSamples(short *buf, int len, bool *wUnderrun,
+ unsigned long long timestamp,
+ bool isControl)
+{
+ updateTime();
+ underrunLock.lock();
+ underrun |= (currstamp+len < timestamp);
+ underrunLock.unlock();
+ return len;
+}
+
+bool DummyLoad::updateAlignment(TIMESTAMP timestamp)
+{
+ return true;
+}
+
+bool DummyLoad::setTxFreq(double wFreq) { return true;};
+bool DummyLoad::setRxFreq(double wFreq) { return true;};