[PATCH] osmo-bsc[master]: osmo-bts/nanobts: Set RACH_Busy Threshold to -90 dBm

[Harald Welte]

Review at  https://gerrit.osmocom.org/6960

osmo-bts/nanobts: Set RACH_Busy Threshold to -90 dBm

In the past we used to set this to "-10 dBm" which means that basically
no RACH ever passed that treshold and in the associated CCCH LOAD IND
the number of busy slots was always zero.

Let's set the default to -90dBm.  The user can of course always
configure a different value in the VTY.

This means that now any RACH slot signal level >= 90 dBm counts as
"busy" in those CCCH LOAD IND (RACH).

Change-Id: Ib9cbb786d19acc74f0951930b0dc9284854c6000
Closes: OS#3004
Related: OS#3003
---
M src/libbsc/bts_ipaccess_nanobts_omlattr.c
M tests/nanobts_omlattr/nanobts_omlattr_test.c
M tests/nanobts_omlattr/nanobts_omlattr_test.ok
3 files changed, 4 insertions(+), 4 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/60/6960/1

diff --git a/src/libbsc/bts_ipaccess_nanobts_omlattr.c b/src/libbsc/bts_ipaccess_nanobts_omlattr.c
index 926322c..1a8d9b0 100644
--- a/src/libbsc/bts_ipaccess_nanobts_omlattr.c
+++ b/src/libbsc/bts_ipaccess_nanobts_omlattr.c
@@ -75,7 +75,7 @@
 	msgb_tv_put(msgb, NM_ATT_CCCH_L_I_P, 1);
 
 	/* busy threshold in - dBm */
-	buf[0] = 10;
+	buf[0] = 90;	/* -90 dBm as default "busy" threshold */
 	if (bts->rach_b_thresh != -1)
 		buf[0] = bts->rach_b_thresh & 0xff;
 	msgb_tv_put(msgb, NM_ATT_RACH_B_THRESH, buf[0]);
diff --git a/tests/nanobts_omlattr/nanobts_omlattr_test.c b/tests/nanobts_omlattr/nanobts_omlattr_test.c
index 1d248c2..0554f43 100644
--- a/tests/nanobts_omlattr/nanobts_omlattr_test.c
+++ b/tests/nanobts_omlattr/nanobts_omlattr_test.c
@@ -226,7 +226,7 @@
 	    { 0x19, 0x55, 0x5b, 0x61, 0x67, 0x6d, 0x73, 0x18, 0x06, 0x0e, 0x00,
 		0x02, 0x01, 0x20, 0x33, 0x1e, 0x24, 0x24, 0xa8, 0x34, 0x21,
 		0xa8, 0x1f, 0x3f, 0x25,
-		0x00, 0x01, 0x0a, 0x0c, 0x0a, 0x0b, 0x01, 0x2a, 0x0a, 0x2b,
+		0x00, 0x01, 0x0a, 0x0c, 0x0a, 0x0b, 0x01, 0x2a, 0x5a, 0x2b,
 		0x03, 0xe8, 0x0a, 0x0d,
 		0x23, 0x0a, 0x08, 0x03, 0x62, 0x09, 0x3f, 0x99, 0x00, 0x07,
 		0x00, 0xf1, 0x10, 0x00,
diff --git a/tests/nanobts_omlattr/nanobts_omlattr_test.ok b/tests/nanobts_omlattr/nanobts_omlattr_test.ok
index 9504c09..ef46cf9 100644
--- a/tests/nanobts_omlattr/nanobts_omlattr_test.ok
+++ b/tests/nanobts_omlattr/nanobts_omlattr_test.ok
@@ -1,6 +1,6 @@
 Testing nanobts_attr_bts_get()...
-result=  19555b61676d7318060e00020120331e2424a83421a81f3f2500010a0c0a0b012a0a2b03e80a0d230a080362093f99000700f11000010539
-expected=19555b61676d7318060e00020120331e2424a83421a81f3f2500010a0c0a0b012a0a2b03e80a0d230a080362093f99000700f11000010539
+result=  19555b61676d7318060e00020120331e2424a83421a81f3f2500010a0c0a0b012a5a2b03e80a0d230a080362093f99000700f11000010539
+expected=19555b61676d7318060e00020120331e2424a83421a81f3f2500010a0c0a0b012a5a2b03e80a0d230a080362093f99000700f11000010539
 ok.
 
 Testing nanobts_attr_nse_get()...

-- 
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib9cbb786d19acc74f0951930b0dc9284854c6000
Gerrit-PatchSet: 1
Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Owner: Harald Welte <laforge at gnumonks.org>