gsm_04_08.h: Introduce API osmo_gsm48_rfpowercap2powerclass()
Related: OS#4244
Change-Id: I32e9cc1c2397b44f0d48db2acdf782a821365b63
diff --git a/src/gsm/gsm48.c b/src/gsm/gsm48.c
index 2d6deb5..17b0829 100644
--- a/src/gsm/gsm48.c
+++ b/src/gsm/gsm48.c
@@ -1390,4 +1390,25 @@
}
}
+/*! Decode power class from Classmark1/2 RF power capability field.
+ * \param[in] rf_power_cap The RF power capability field (3 bits).
+ * \param[in] band the band of the arfcn from where the classmark was received
+ * \return the MS power class on success, negative on error.
+ */
+int8_t osmo_gsm48_rfpowercap2powerclass(enum gsm_band band, uint8_t rf_power_cap)
+{
+ switch (band) {
+ case GSM_BAND_1800:
+ case GSM_BAND_1900:
+ if (rf_power_cap > 2)
+ return -1;
+ return rf_power_cap + 1;
+ default:
+ if (rf_power_cap > 4)
+ return -1;
+ return rf_power_cap + 1;
+ }
+}
+
+
/*! @} */
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 724fe5b..a0e3b32 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -646,6 +646,7 @@
osmo_gsm48_classmark_a5_name_buf;
osmo_gsm48_classmark_a5_name_c;
osmo_gsm48_classmark_update;
+osmo_gsm48_rfpowercap2powerclass;
cbsp_msg_type_names;
cbsp_iei_names;