Review at https://gerrit.osmocom.org/6846
Add FAKE_RSSI and FAKE_TIMING commands on BB side
This is useful for testing the measurement processing code in OsmoBTS
Change-Id: Ia23becec4104d47e7b22350db67b8834d6f1ad1b
---
M src/target/fake_trx/burst_fwd.py
M src/target/fake_trx/ctrl_if_bb.py
2 files changed, 21 insertions(+), 4 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/46/6846/1
diff --git a/src/target/fake_trx/burst_fwd.py b/src/target/fake_trx/burst_fwd.py
index 5989ce9..8b04be1 100644
--- a/src/target/fake_trx/burst_fwd.py
+++ b/src/target/fake_trx/burst_fwd.py
@@ -25,6 +25,8 @@
class BurstForwarder:
# Timeslot filter (drop everything by default)
ts_pass = None
+ rssi = 0x35
+ timing = 0
# Freq. filter
bts_freq = None
@@ -44,11 +46,11 @@
payload = bytearray(data)
length = len(payload)
- # HACK: set fake RSSI value (-53)
- payload[5] = 0x35
+ # set fake RSSI value (-53)
+ payload[5] = self.rssi
- # HACK: add fake TOA value (6th and 7th bytes)
- payload[6:2] = [0x00, 0x00]
+ # add fake TOA value (6th and 7th bytes)
+ payload[6:2] = [self.timing >> 8, self.timing & 0xff]
# Convert ubits to {255..0}
for i in range(8, length):
diff --git a/src/target/fake_trx/ctrl_if_bb.py
b/src/target/fake_trx/ctrl_if_bb.py
index 440094a..f8ad5b4 100644
--- a/src/target/fake_trx/ctrl_if_bb.py
+++ b/src/target/fake_trx/ctrl_if_bb.py
@@ -118,6 +118,21 @@
self.burst_fwd.ts_pass = ts
return 0
+ elif self.verify_cmd(request, "FAKE_RSSI", 1):
+ print("[i] Recv FAKE_RSSI cmd")
+ self.burst_fwd.rssi = int(request[1])
+ # HACK: We don't return a response, as the command is
typicaly sent
+ # by another program (test controller) and we don't
want to confuse
+ # trxcon with bogus responses
+ return -1
+
+ elif self.verify_cmd(request, "FAKE_TIMING", 1):
+ print("[i] Recv FAKE_TIMING cmd")
+ self.burst_fwd.timing = int(request[1])
+ # HACK: We don't return a response, as the command is
typicaly sent
+ # by another program (test controller) and we don't
want to confuse
+ # trxcon with bogus responses
+ return -1
# Wrong / unknown command
else:
--
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia23becec4104d47e7b22350db67b8834d6f1ad1b
Gerrit-PatchSet: 1
Gerrit-Project: osmocom-bb
Gerrit-Branch: fixeria/trx
Gerrit-Owner: Harald Welte <lafo...@gnumonks.org>
