siggen: Add osmo-siggen for GSM/EDGE test signal generationttsou/siggen

* Adds 4 and 1 pulse Laurent GMSK modulators
* Adds NCO based modulator
* Adds synchronization and frequency burst generators
* Adds GPIO frame trigger on GPIO-0
* Tested on USRP B210 only
* Requires C++14 support

B210 GPIO Pin Map

             J504
           ---------
fp_gpio<0> | 1 | 2 | fp_gpio<1>
           ---------
fp_gpio<2> | 3 | 4 | fp_gpio<3>
           ---------
fp_gpio<4> | 5 | 6 | fp_gpio<5>
           ---------
fp_gpio<6> | 7 | 8 | fp_gpio<7>
           ---------
       gnd | 9 | 10| gnd
           ---------

Change-Id: I891725d7f0cfa97c79e64f978a60dc11a206195c
Signed-off-by: Tom Tsou <tom.tsou@ettus.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/Transceiver52M/sigProcLib.h b/Transceiver52M/sigProcLib.h
index 9bc7e10..e3aa932 100644
--- a/Transceiver52M/sigProcLib.h
+++ b/Transceiver52M/sigProcLib.h
@@ -65,12 +65,18 @@ signalVector *modulateBurst(const BitVector &wBurst,
                             int guardPeriodLength,
                             int sps, bool emptyPulse = false);
 
+signalVector *modulateBurstLaurent4(const BitVector &wBurst);
+signalVector *modulateBurstLaurent2(const BitVector &wBurst);
+signalVector *modulateBurstLaurent1(const BitVector &wBurst);
+signalVector *modulateBurstNCO(const BitVector &wBurst);
+
 /** 8-PSK modulate a burst of bits */
 signalVector *modulateEdgeBurst(const BitVector &bits,
                                 int sps, bool emptyPulse = false);
 
 /** Generate a EDGE burst with random payload - 4 SPS (625 samples) only */
 signalVector *generateEdgeBurst(int tsc);
+signalVector *shapeEdgeBurst(const signalVector &symbols);
 
 /** Generate an empty burst - 4 or 1 SPS */
 signalVector *generateEmptyBurst(int sps, int tn);