falconia has uploaded this change for review. (
https://gerrit.osmocom.org/c/libosmocore/+/32197 )
Change subject: include/osmocom/gsm/protocol: add gsm_06_31.h
......................................................................
include/osmocom/gsm/protocol: add gsm_06_31.h
GSM 06.31 spec section 6.1.1 (also duplicated in GSM 06.81, same
section) defines numeric values 0, 1 and 2 as denoting three
possible outcomes of the SID classification procedure by which
an incoming FR/EFR codec frame is classified as speech or valid
SID or invalid SID. These exact numeric values for SID
classification appear in at least one public external interface
(bits C13 & C14 in TRAU-UL frames, used on T1/E1 Abis and in
TS 28.062 in-band TFO) and at least one reverse-engineered legacy
vendor interface (bits [4:3] of a_dd[0] status word in GSM MS DSPs
from TI), hence it is useful to have them defined in a formal
GSM protocol header file.
Change-Id: If004b668778d3d9cf6cd998b3af2dbfa83691529
---
M include/osmocom/gsm/protocol/Makefile.am
A include/osmocom/gsm/protocol/gsm_06_31.h
2 files changed, 33 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/97/32197/1
diff --git a/include/osmocom/gsm/protocol/Makefile.am
b/include/osmocom/gsm/protocol/Makefile.am
index 5c8e2a6..5637047 100644
--- a/include/osmocom/gsm/protocol/Makefile.am
+++ b/include/osmocom/gsm/protocol/Makefile.am
@@ -8,6 +8,7 @@
gsm_04_12.h \
gsm_04_14.h \
gsm_04_80.h \
+ gsm_06_31.h \
gsm_08_08.h \
gsm_08_58.h \
gsm_09_02.h \
diff --git a/include/osmocom/gsm/protocol/gsm_06_31.h
b/include/osmocom/gsm/protocol/gsm_06_31.h
new file mode 100644
index 0000000..86e1c21
--- /dev/null
+++ b/include/osmocom/gsm/protocol/gsm_06_31.h
@@ -0,0 +1,11 @@
+/*! \file gsm_06_31.h
+ * GSM TS 06.31 definitions, also duplicated in GSM TS 06.81. */
+
+#pragma once
+
+/* Section 6.1.1 */
+enum gsm631_sid_class {
+ GSM631_SID_CLASS_SPEECH = 0,
+ GSM631_SID_CLASS_INVALID = 1,
+ GSM631_SID_CLASS_VALID = 2,
+};
--
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-Change-Id: If004b668778d3d9cf6cd998b3af2dbfa83691529
Gerrit-Change-Number: 32197
Gerrit-PatchSet: 1
Gerrit-Owner: falconia <[email protected]>
Gerrit-MessageType: newchange
