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pespin gerrit-no-reply at lists.osmocom.orgpespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/20968 )
Change subject: pcu: Add infra to handle multitrx and multits envs
......................................................................
pcu: Add infra to handle multitrx and multits envs
ARFCNs are allocated sequentially, so that conversion between
arfcn<->trx_nr is easily done.
Some helper functions are introduced to be able to submit and expect
messages on a given TRX+TS, which is required for setups with several
TRX and PDCH-enabled TS different than the default. These new APIs
will be used in PCU_Tests.ttcn in subsequent patches.
Change-Id: I28430e6d8c77d2b7dc630d186d425a5d82587b82
---
M library/PCUIF_Types.ttcn
M pcu/GPRS_Components.ttcn
M pcu/PCU_Tests.ttcn
3 files changed, 82 insertions(+), 14 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/68/20968/1
diff --git a/library/PCUIF_Types.ttcn b/library/PCUIF_Types.ttcn
index b50e4c5..935f82b 100644
--- a/library/PCUIF_Types.ttcn
+++ b/library/PCUIF_Types.ttcn
@@ -815,21 +815,21 @@
template (value) PCUIF_InfoV09Trx ts_PCUIF_InfoV09TrxNULL := ts_PCUIF_InfoV09Trx(0, '00000000'B, '00'O);
-template (value) PCUIF_InfoTrxs ts_PCUIF_InfoV09Trxs_def := {
+template (value) PCUIF_InfoTrxs ts_PCUIF_InfoV09Trxs_def(uint16_t base_arfcn) := {
v09 := {
- ts_PCUIF_InfoV09Trx, ts_PCUIF_InfoV09TrxNULL,
+ ts_PCUIF_InfoV09Trx(arfcn := base_arfcn + 0), ts_PCUIF_InfoV09TrxNULL,
ts_PCUIF_InfoV09TrxNULL, ts_PCUIF_InfoV09TrxNULL,
ts_PCUIF_InfoV09TrxNULL, ts_PCUIF_InfoV09TrxNULL,
ts_PCUIF_InfoV09TrxNULL, ts_PCUIF_InfoV09TrxNULL
}
};
-template (value) PCUIF_InfoTrxs ts_PCUIF_InfoV10Trxs_def := {
+template (value) PCUIF_InfoTrxs ts_PCUIF_InfoV10Trxs_def(uint16_t base_arfcn) := {
v10 := {
- ts_PCUIF_InfoV10Trx(arfcn := 871), ts_PCUIF_InfoV10Trx(arfcn := 872),
- ts_PCUIF_InfoV10Trx(arfcn := 873), ts_PCUIF_InfoV10Trx(arfcn := 874),
- ts_PCUIF_InfoV10Trx(arfcn := 875), ts_PCUIF_InfoV10Trx(arfcn := 876),
- ts_PCUIF_InfoV10Trx(arfcn := 877), ts_PCUIF_InfoV10Trx(arfcn := 878)
+ ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 0), ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 1),
+ ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 2), ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 3),
+ ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 4), ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 5),
+ ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 6), ts_PCUIF_InfoV10Trx(arfcn := base_arfcn + 7)
}
};
@@ -972,12 +972,12 @@
/* TODO: remove this as soon as we drop version 9 support */
-function f_PCUIF_ver_INFO_Trxs()
+function f_PCUIF_ver_INFO_Trxs(uint16_t base_arfcn)
return PCUIF_InfoTrxs {
if (PCUIF_Types.mp_pcuif_version >= 10) {
- return valueof(ts_PCUIF_InfoV10Trxs_def);
+ return valueof(ts_PCUIF_InfoV10Trxs_def(base_arfcn));
} else {
- return valueof(ts_PCUIF_InfoV09Trxs_def);
+ return valueof(ts_PCUIF_InfoV09Trxs_def(base_arfcn));
}
}
diff --git a/pcu/GPRS_Components.ttcn b/pcu/GPRS_Components.ttcn
index c460e25..5ca32dd 100644
--- a/pcu/GPRS_Components.ttcn
+++ b/pcu/GPRS_Components.ttcn
@@ -44,6 +44,11 @@
import from Native_Functions all;
import from SGSN_Components all;
+modulepar {
+ /* ARFCN of 1st TRX. Subsequent TRX are allocated incrementing ARFCNs. Nth TRX => base_arfcn + N-1 */
+ GsmArfcn mp_base_arfcn := 871;
+};
+
type record TsTrxBtsNum {
uint3_t ts_nr,
uint3_t trx_nr,
@@ -201,6 +206,18 @@
mtc.stop;
}
+function f_arfcn2trxnr(uint10_t arfcn) runs on MS_BTS_IFACE_CT return uint3_t {
+ if (arfcn < mp_base_arfcn) {
+ setverdict(fail, "Unable to find TRX NR for arfcn ", arfcn);
+ f_shutdown(__BFILE__, __LINE__);
+ }
+ return arfcn - mp_base_arfcn;
+}
+
+function f_trxnr2arfcn(uint3_t trx_nr) return uint10_t {
+ return mp_base_arfcn + trx_nr;
+}
+
function f_ultbf_new_from_rr_imm_ass(in GsmRrMessage rr_imm_ass)
runs on MS_BTS_IFACE_CT return UlTbf {
var UlTbf ul_tbf := valueof(t_UlTbf_def);
@@ -394,12 +411,62 @@
return dl_tbf;
}
+function f_ms_tx_TsTrxBtsNum(inout GprsMS ms)
+runs on MS_BTS_IFACE_CT return TsTrxBtsNum {
+ var uint3_t ts_nr := f_ultbf_next_ts(ms.ul_tbf);
+
+ var uint3_t trx_nr;
+ if (ms.ul_tbf.arfcn != 0) {
+ trx_nr := f_arfcn2trxnr(ms.ul_tbf.arfcn);
+ } else {
+ /* FIXME: implement search by hsn+maio+ma when freq hopping is enabled */
+ trx_nr := 7;
+ }
+ return valueof(ts_TsTrxBtsNum(ts_nr, trx_nr));
+}
+
+function f_dltbf_num_slots(inout DlTbf dl_tbf)
+runs on MS_BTS_IFACE_CT return uint3_t {
+ var uint3_t n := 0;
+ for (var integer i := 0; i < lengthof(dl_tbf.ts_mask); i := i + 1) {
+ if (dl_tbf.ts_mask[i] == '1'B) {
+ n := n + 1;
+ }
+ }
+ return n;
+}
+
function f_ultbf_inc_bsn(inout UlTbf ul_tbf)
runs on MS_BTS_IFACE_CT {
ul_tbf.bsn := ul_tbf.bsn + 1;
ul_tbf.bsn := ul_tbf.bsn mod 128; /* FIXME: EGPRS SNS: 2048 */
}
+function f_ultbf_next_ts(inout UlTbf ul_tbf)
+runs on MS_BTS_IFACE_CT return uint3_t {
+ /* FIXME: in the future we probably want to store last used internally
+ /* and continue from there */
+ for (var integer i := 0; i < lengthof(ul_tbf.ts_mask); i := i + 1) {
+ if (ul_tbf.ts_mask[i] == '1'B) {
+ return i;
+ }
+ }
+ setverdict(fail, "No TS available for tx!");
+ f_shutdown(__BFILE__, __LINE__);
+ return 0;
+}
+
+function f_ultbf_num_slots(inout UlTbf ul_tbf)
+runs on MS_BTS_IFACE_CT return uint3_t {
+ var uint3_t n := 0;
+ for (var integer i := 0; i < lengthof(ul_tbf.ts_mask); i := i + 1) {
+ if (ul_tbf.ts_mask[i] == '1'B) {
+ n := n + 1;
+ }
+ }
+ return n;
+}
+
function f_ms_use_ra(inout GprsMS ms, uint16_t ra, uint8_t ra_is_11bit := 0)
runs on MS_BTS_IFACE_CT {
ms.ra_is_11bit := ra_is_11bit;
@@ -706,7 +773,7 @@
BTS.send(ts_PCUIF_RACH_IND(nr.bts_nr, nr.trx_nr, ts_nr := 0,
ra := ra, is_11bit := is_11bit,
burst_type := burst_type,
- fn := fn, arfcn := 871,
+ fn := fn, arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
qta := ta * 4));
/* 3GPP TS 44.018, table 9.1.8.1, note 2b: Request Reference shall be set to 127
@@ -725,7 +792,8 @@
var template RAW_PCU_EventParam ev_param := {tdma_fn := ? };
BTS.send(ts_PCUIF_DATA_IND(nr.bts_nr, nr.trx_nr, nr.ts_nr, nr.blk_nr,
sapi := PCU_IF_SAPI_PDTCH, data := data,
- fn := fn, arfcn := 871, lqual_cb := lqual_cb));
+ fn := fn, arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)),
+ lqual_cb := lqual_cb));
if (fn != 0) {
ev_param := {tdma_fn := fn };
}
@@ -738,7 +806,7 @@
runs on MS_BTS_IFACE_CT {
BTS.send(ts_PCUIF_RTS_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH, fn := 0,
- arfcn := 871, block_nr := nr.blk_nr));
+ arfcn := f_trxnr2arfcn(valueof(nr.trx_nr)), block_nr := nr.blk_nr));
BTS.receive(tr_PCUIF_DATA_REQ(nr.bts_nr, nr.trx_nr, nr.ts_nr,
sapi := PCU_IF_SAPI_PDTCH)) -> value pcu_msg;
}
diff --git a/pcu/PCU_Tests.ttcn b/pcu/PCU_Tests.ttcn
index ff8a355..4e2feb6 100644
--- a/pcu/PCU_Tests.ttcn
+++ b/pcu/PCU_Tests.ttcn
@@ -70,7 +70,7 @@
friend template (value) PCUIF_info_ind ts_PCUIF_INFO_default := {
version := PCUIF_Types.mp_pcuif_version,
flags := c_PCUIF_Flags_default,
- trx := f_PCUIF_ver_INFO_Trxs(),
+ trx := f_PCUIF_ver_INFO_Trxs(GPRS_Components.mp_base_arfcn),
bsic := 7,
mcc := 262,
mnc := 42,
--
To view, visit https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/20968
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I28430e6d8c77d2b7dc630d186d425a5d82587b82
Gerrit-Change-Number: 20968
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-MessageType: newchange
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