radioInterface: Remove UmTRX 'diversity' option

The 'diversity' option was an experimental 2 antenna receiver
implementation for UmTRX. The implementation has not been
maintained and current working status is unknown.

In addition to code rot, Coverity is triggering errors in the
associated code sections.

Removal of code cleans up many cases of special handling that
were necessary to accommodate the implementation.

Change-Id: I46752ccf5dbcffbec806081dec03e69a0fbdcdb7

1 files changed, 5 insertions, 8 deletions

diff --git a/Transceiver52M/radioInterface.cpp b/Transceiver52M/radioInterface.cpp
index 7a84430..e039d5c 100644
--- a/Transceiver52M/radioInterface.cpp
+++ b/Transceiver52M/radioInterface.cpp
@@ -31,11 +31,10 @@ extern "C" {
 #define NUMCHUNKS	4
 
 RadioInterface::RadioInterface(RadioDevice *wRadio, size_t tx_sps,
-                               size_t rx_sps, size_t chans, size_t diversity,
+                               size_t rx_sps, size_t chans,
                                int wReceiveOffset, GSM::Time wStartTime)
   : mRadio(wRadio), mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans),
-    mMIMO(diversity), underrun(false), overrun(false),
-    receiveOffset(wReceiveOffset), mOn(false)
+    underrun(false), overrun(false), receiveOffset(wReceiveOffset), mOn(false)
 {
   mClock.set(wStartTime);
 }
@@ -47,7 +46,7 @@ RadioInterface::~RadioInterface(void)
 
 bool RadioInterface::init(int type)
 {
-  if ((type != RadioDevice::NORMAL) || (mMIMO > 1) || !mChans) {
+  if ((type != RadioDevice::NORMAL) || !mChans) {
     LOG(ALERT) << "Invalid configuration";
     return false;
   }
@@ -253,10 +252,8 @@ bool RadioInterface::driveReceiveRadio()
    */
   while (recvSz > burstSize) {
     for (size_t i = 0; i < mChans; i++) {
-      burst = new radioVector(rcvClock, burstSize, head, mMIMO);
-
-      for (size_t n = 0; n < mMIMO; n++)
-        unRadioifyVector(burst->getVector(n), i);
+      burst = new radioVector(rcvClock, burstSize, head);
+      unRadioifyVector(burst->getVector(), i);
 
       if (mReceiveFIFO[i].size() < 32)
         mReceiveFIFO[i].write(burst);