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Tuner Controller update to better handle automatic center frequency

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calculation when additional channels are allocated.

Incorporates tuner specific definition of overall usable bandwidth, so
that tuners like airspy can specify 90% of 10 MHz (ie 9 MHz) is truly
usable and the fringe 10% is unusable rolloff.

Also includes tuner-specific defining of the width of the central spike,
or a value of 0 indicates that the entire range is usable (ie airspy).
This commit is contained in:
denny
2015-12-12 14:08:32 -05:00
parent 87e70ae0e4
commit 0951277915
10 changed files with 224 additions and 197 deletions
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8
src/source/tuner/fcd/FCDTunerController.java
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@@ -46,6 +46,9 @@ public abstract class FCDTunerController extends TunerController
private final static Logger mLog =
LoggerFactory.getLogger( FCDTunerController.class );
public static final double USABLE_BANDWIDTH_PERCENT = 1.0;
public static final int DC_SPIKE_AVOID_BUFFER = 2000;
public final static byte FCD_INTERFACE = (byte)0x2;
public final static byte FCD_ENDPOINT_IN = (byte)0x82;
public final static byte FCD_ENDPOINT_OUT = (byte)0x2;
@@ -70,7 +73,10 @@ public abstract class FCDTunerController extends TunerController
int minTunableFrequency,
int maxTunableFrequency )
{
super( minTunableFrequency, maxTunableFrequency );
super( minTunableFrequency,
maxTunableFrequency,
DC_SPIKE_AVOID_BUFFER,
USABLE_BANDWIDTH_PERCENT );
mDevice = device;
mDeviceDescriptor = descriptor;