From dba847822266ac144a519c1752f8941072f3897b Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Tue, 18 Jan 2011 21:38:12 +0100 Subject: [PATCH] gsmtap.h: Add some more comments --- include/osmocore/gsmtap.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/osmocore/gsmtap.h b/include/osmocore/gsmtap.h index 3f384a4fa..c5dba7942 100644 --- a/include/osmocore/gsmtap.h +++ b/include/osmocore/gsmtap.h @@ -21,6 +21,7 @@ #define GSMTAP_TYPE_UM_BURST 0x03 /* raw burst bits */ #define GSMTAP_TYPE_SIM 0x04 +/* sub-types for TYPE_UM_BURST */ #define GSMTAP_BURST_UNKNOWN 0x00 #define GSMTAP_BURST_FCCH 0x01 #define GSMTAP_BURST_PARTIAL_SCH 0x02 @@ -32,6 +33,7 @@ #define GSMTAP_BURST_ACCESS 0x08 #define GSMTAP_BURST_NONE 0x09 +/* sub-types for TYPE_UM */ #define GSMTAP_CHANNEL_UNKNOWN 0x00 #define GSMTAP_CHANNEL_BCCH 0x01 #define GSMTAP_CHANNEL_CCCH 0x02 @@ -45,10 +47,12 @@ #define GSMTAP_CHANNEL_TCH_H 0x0a #define GSMTAP_CHANNEL_ACCH 0x80 +/* flags for the ARFCN */ #define GSMTAP_ARFCN_F_PCS 0x8000 #define GSMTAP_ARFCN_F_UPLINK 0x4000 #define GSMTAP_ARFCN_MASK 0x3fff +/* IANA-assigned well-known UDP port for GSMTAP messages */ #define GSMTAP_UDP_PORT 4729 struct gsmtap_hdr {