On Sat, Jul 13, 2013 at 5:45 PM, Alexander Chemeris
<alexander.chemeris(a)gmail.com> wrote:
What is the reason you disabled setting power
attenuation an receive
gain for the second trx? Since both channels in UmTRX are independent,
it should be possible to control tx power and rx gain independently.
In the "SETPOWER" command handler:
if (mPrimary)
mRadioInterface->setPowerAttenuation(dbPwr);
The control interface was setup for OpenBTS, which does not make a
distinction between independent channel gain. So I locked both gain
settings to the primary channel (the one that initializes the device).
For better osmo-bts usage, I split the gain settings in the same way
that we discussed for the tuning setting. Note that this breaks
OpenBTS usage, but that fix should really be in core and not the
transceiver.
git://github.com/ttsou/openbts-p2.8.git umtrx_dual_test
In the "SETRXGAIN" it's even stranger,
as it's set twice in case of primary trx:
newGain = mRadioInterface->setRxGain(newGain);
mEnergyThreshold = INIT_ENERGY_THRSHD;
if (mPrimary)
newGain = mRadioInterface->setRxGain(newGain);
Very strange indeed. That's a bug. Fixed in the same patch.
Thomas