BTS_Tests: implement optional frequency hopping support

Change-Id: If0318fd320d4f112341465844555bf8d65b5f88f
Depends: I7822c3581fccba3277a63577e740e7486307635d
Related: SYS#4868, OS#4546

1 files changed, 52 insertions, 0 deletions

diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 1cecf4e4..7c6886de 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -111,6 +111,10 @@ modulepar {
 	boolean mp_l1_supports_gprs := false;
 	/* how many transceivers do we expect to connect */
 	integer mp_transceiver_num := 1;
+	/* frequency hopping status */
+	boolean mp_freq_hop_enabled := false;
+	/* frequency hopping parameters */
+	FreqHopConfig mp_fh_config;
 }
 
 type record of RslChannelNr ChannelNrs;
@@ -510,6 +514,49 @@ friend function f_init_l1ctl() runs on test_CT {
 
 private type function void_fn(charstring id) runs on ConnHdlr;
 
+private type record length(8) of FreqHopGroups FreqHopConfig;
+
+private type record of FreqHopGroup FreqHopGroups;
+private type record FreqHopGroup {
+	uint6_t			hsn,
+	FreqHopGroupItems	trx_maio
+};
+
+private type record of FreqHopGroupItem FreqHopGroupItems;
+private type record FreqHopGroupItem {
+	uint8_t			trx_nr,
+	uint6_t			maio
+};
+
+friend function f_resolve_fh_params(inout ConnHdlrPars pars, uint8_t trx_nr := 0)
+{
+	var FreqHopGroups groups := mp_fh_config[pars.chan_nr.tn];
+	var integer i, j;
+
+	for (i := 0; i < lengthof(groups); i := i + 1) {
+		var FreqHopGroup g := groups[i];
+		for (j := 0; j < lengthof(g.trx_maio); j := j + 1) {
+			var FreqHopGroupItem gi := g.trx_maio[j];
+			if (gi.trx_nr == trx_nr) {
+				pars.maio_hsn := valueof(ts_HsnMaio(g.hsn, gi.maio));
+				pars.ma := { }; /* to be composed below */
+				break;
+			}
+		}
+
+		if (ispresent(pars.maio_hsn)) {
+			/* Compose the Mobile Allocation */
+			for (j := 0; j < lengthof(g.trx_maio); j := j + 1) {
+				var FreqHopGroupItem gi := g.trx_maio[j];
+				pars.ma := pars.ma & { l1ctl_ma_def[gi.trx_nr] };
+			}
+
+			log("Freq. hopping parameters: ", pars.maio_hsn, pars.ma);
+			break; /* We're done */
+		}
+	}
+}
+
 /* create a new test component */
 friend function f_start_handler(void_fn fn, ConnHdlrPars pars,
 				boolean pcu_comp := false,
@@ -535,6 +582,11 @@ runs on test_CT return ConnHdlr {
 		map(vc_conn:BTS_TRXC, system:BTS_TRXC);
 	}
 
+	/* Obtain frequency hopping parameters for a given timeslot */
+	if (mp_freq_hop_enabled and mp_transceiver_num > 1) {
+		f_resolve_fh_params(pars);
+	}
+
 	vc_conn.start(f_handler_init(fn, id, pars));
 	return vc_conn;
 }