gsm_04_08: improve gsm48_multirate_config()
The function gsm48_multirate_config() generates the multirate
configuration IE, that is sent via RSL to configure the active set of
AMR codecs inside the BTS. The function already works, but it does not
check the input data for consistancy. Lets add some consistancy check to
make sure that inconsistant parameters are rejected. Also allow the
output pointer to be NULL, so that the function can be used to perform
a dry run to be able to verify parameters.
- Check for invalid / inconsistant configuration parameters
- Perform a dry-run when lv pointer is set to NULL
Change-Id: I06beb7dd7236c81c3a91af4d09c31891f4b910a4
Related: OS#3529
diff --git a/include/osmocom/bsc/gsm_04_08_rr.h b/include/osmocom/bsc/gsm_04_08_rr.h
index e2e861d..8e4f787 100644
--- a/include/osmocom/bsc/gsm_04_08_rr.h
+++ b/include/osmocom/bsc/gsm_04_08_rr.h
@@ -23,7 +23,8 @@
struct msgb *msg, struct bsc_subscr *bsub);
int gsm48_send_rr_classmark_enquiry(struct gsm_lchan *lchan);
int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv);
-int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, const struct amr_mode *modes);
+int gsm48_multirate_config(uint8_t *lv, const struct gsm48_multi_rate_conf *mr_conf,
+ const struct amr_mode *modes, unsigned int num_modes);
struct msgb *gsm48_make_ho_cmd(struct gsm_lchan *new_lchan, uint8_t power_command, uint8_t ho_ref);
int gsm48_send_ho_cmd(struct gsm_lchan *old_lchan, struct gsm_lchan *new_lchan,
uint8_t power_command, uint8_t ho_ref);