Change in osmo-gsm-tester[master]: Introduce RFemu stdin implementation for srsENB

[pespin]

pespin has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-gsm-tester/+/20456 )


Change subject: Introduce RFemu stdin implementation for srsENB
......................................................................

Introduce RFemu stdin implementation for srsENB

Change-Id: I5487dec3691cbf424306369f94f337ed34a10c70
---
M src/osmo_gsm_tester/obj/enb_srs.py
M src/osmo_gsm_tester/obj/rfemu.py
A src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
M sysmocom/defaults.conf
4 files changed, 64 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-tester refs/changes/56/20456/1

diff --git a/src/osmo_gsm_tester/obj/enb_srs.py b/src/osmo_gsm_tester/obj/enb_srs.py
index 68a3a19..9c3dd5a 100644
--- a/src/osmo_gsm_tester/obj/enb_srs.py
+++ b/src/osmo_gsm_tester/obj/enb_srs.py
@@ -251,6 +251,10 @@
         rfemu_cfg = cell_list[cell].get('dl_rfemu', None)
         if rfemu_cfg is None:
             raise log.Error('rfemu attribute not found in cell_list item!')
+        if rfemu_cfg['type'] == 'srsenb_stdin':
+            # These fields are required so the rfemu class can interact with us:
+             config.overlay(rfemu_cfg, dict(enb=self,
+                                            cell_id=cell_list[cell]['cell_id']))
 
         rfemu_obj = rfemu.get_instance_by_type(rfemu_cfg['type'], rfemu_cfg)
         return rfemu_obj
diff --git a/src/osmo_gsm_tester/obj/rfemu.py b/src/osmo_gsm_tester/obj/rfemu.py
index ac34ee1..ec8ed68 100644
--- a/src/osmo_gsm_tester/obj/rfemu.py
+++ b/src/osmo_gsm_tester/obj/rfemu.py
@@ -52,6 +52,9 @@
     elif rfemu_type == 'minicircuits':
         from .rfemu_minicircuits import RFemulationMinicircuitsHTTP
         obj = RFemulationMinicircuitsHTTP
+    elif rfemu_type == 'srsenb_stdin':
+        from .rfemu_srsenb_stdin import RFemulationSrsStdin
+        obj = RFemulationSrsStdin
     else:
         raise log.Error('RFemulation type not supported:', rfemu_type)
 
diff --git a/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py b/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
new file mode 100644
index 0000000..ca23020
--- /dev/null
+++ b/src/osmo_gsm_tester/obj/rfemu_srsenb_stdin.py
@@ -0,0 +1,52 @@
+# osmo_gsm_tester: class defining a RF emulation object implemented using SRS ENB stdin interface
+#
+# Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH
+#
+# Author: Pau Espin Pedrol <pespin at sysmocom.de>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import json
+
+from ..core import log
+from .rfemu import RFemulation
+
+class RFemulationSrsStdin(RFemulation):
+##############
+# PROTECTED
+##############
+    def __init__(self, conf):
+        super().__init__(conf, 'srsenb_stdin')
+        self.cell_id = int(conf.get('cell_id'))
+        if self.cell_id is None:
+            raise log.Error('No "cell_id" attribute provided in rfemu conf!')
+        self.enb = conf.get('enb')
+        if self.enb is None:
+            raise log.Error('No "srsenb" attribute provided in rfemu conf!')
+
+    def __del__(self):
+        self.enb = None
+
+#############################
+# PUBLIC (test API included)
+#############################
+    def set_attenuation(self, db):
+        msg_str = 'cell_gain %d %f' % (self.cell_id, db)
+        self.dbg('sending stdin msg: "%s"' % msg_str)
+        self.enb.process.stdin_write(msg_str + '\n')
+
+    def get_max_attenuation(self):
+        return 200 # maximum cell_gain value in srs. Is this correct value?
+
+# vim: expandtab tabstop=4 shiftwidth=4
diff --git a/sysmocom/defaults.conf b/sysmocom/defaults.conf
index 2f2e317..fb6f8f6 100644
--- a/sysmocom/defaults.conf
+++ b/sysmocom/defaults.conf
@@ -148,6 +148,11 @@
   tx_gain: 80
   rx_gain: 40
   log_all_level: warning
+  cell_list:
+   - dl_rfemu:
+       type: srsenb_stdin
+   - dl_rfemu:
+       type: srsenb_stdin
 
 amarisoftenb:
   num_prb: 100

-- 
To view, visit https://gerrit.osmocom.org/c/osmo-gsm-tester/+/20456
To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings

Gerrit-Project: osmo-gsm-tester
Gerrit-Branch: master
Gerrit-Change-Id: I5487dec3691cbf424306369f94f337ed34a10c70
Gerrit-Change-Number: 20456
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <pespin at sysmocom.de>
Gerrit-MessageType: newchange
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20201005/6afb541d/attachment.htm>