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authorHarald Welte <laforge@gnumonks.org>2017-05-27 13:18:50 +0200
committerHarald Welte <laforge@gnumonks.org>2017-05-27 13:18:50 +0200
commit0de69a2501e1d49a8202daaeb9cdd7bfee62effa (patch)
tree65e89e4d11fc1bfd02960f95b2e04d1a7c8ba40e /openbsc
parent5f72f6fccc50412acc7d0a2e921bb723a2105d63 (diff)
costmetic: Document gsm48_multirate_config() + const-ify input
We generally use const pointers for input arguments. Also, document input/output arguments of function and add spec reference. Change-Id: I2532cde69a18e3b021f7371e68f67a28a43d8b5f
Diffstat (limited to 'openbsc')
-rw-r--r--openbsc/include/openbsc/gsm_04_08.h2
-rw-r--r--openbsc/src/libbsc/gsm_04_08_utils.c7
2 files changed, 7 insertions, 2 deletions
diff --git a/openbsc/include/openbsc/gsm_04_08.h b/openbsc/include/openbsc/gsm_04_08.h
index bdf4ed2a6..fe19ff441 100644
--- a/openbsc/include/openbsc/gsm_04_08.h
+++ b/openbsc/include/openbsc/gsm_04_08.h
@@ -94,6 +94,6 @@ void gsm48_lchan2chan_desc(struct gsm48_chan_desc *cd,
void release_security_operation(struct gsm_subscriber_connection *conn);
void allocate_security_operation(struct gsm_subscriber_connection *conn);
-int gsm48_multirate_config(uint8_t *lv, struct amr_multirate_conf *mr, struct amr_mode *modes);
+int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, const struct amr_mode *modes);
#endif
diff --git a/openbsc/src/libbsc/gsm_04_08_utils.c b/openbsc/src/libbsc/gsm_04_08_utils.c
index db9dabb25..3447d27cb 100644
--- a/openbsc/src/libbsc/gsm_04_08_utils.c
+++ b/openbsc/src/libbsc/gsm_04_08_utils.c
@@ -378,7 +378,12 @@ void gsm48_lchan2chan_desc(struct gsm48_chan_desc *cd,
}
}
-int gsm48_multirate_config(uint8_t *lv, struct amr_multirate_conf *mr, struct amr_mode *modes)
+/*! \brief Encode a TS 04.08 multirate config LV according to 10.5.2.21aa
+ * \param[out] lv caller-allocated buffer of 7 bytes. First octet is IS length
+ * \param[in] mr multi-rate configuration to encode
+ * \param[in] modes array describing the AMR modes
+ * \returns 0 on success */
+int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, const struct amr_mode *modes)
{
int num = 0, i;