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-rw-r--r--include/osmocom/gsm/gsm_utils.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/osmocom/gsm/gsm_utils.h b/include/osmocom/gsm/gsm_utils.h
index 99aae65f..0fbfcba8 100644
--- a/include/osmocom/gsm/gsm_utils.h
+++ b/include/osmocom/gsm/gsm_utils.h
@@ -119,7 +119,7 @@ int rxlev2dbm(uint8_t rxlev);
uint8_t dbm2rxlev(int dbm);
/* According to GSM 04.08 Chapter 10.5.1.6 */
-static inline int ms_cm2_a5n_support(uint8_t *cm2, int n) {
+static inline int ms_cm2_a5n_support(uint8_t *cm2, unsigned n) {
switch (n) {
case 0: return 1;
case 1: return (cm2[0] & (1<<3)) ? 0 : 1;
@@ -130,6 +130,18 @@ static inline int ms_cm2_a5n_support(uint8_t *cm2, int n) {
}
}
+/* According to GSM 04.08 Chapter 10.5.1.7 */
+static inline int ms_cm3_a5n_support(uint8_t *cm3, unsigned n) {
+ switch (n) {
+ case 4: return (cm3[0] & (1<<0)) ? 1 : 0;
+ case 5: return (cm3[0] & (1<<1)) ? 1 : 0;
+ case 6: return (cm3[0] & (1<<2)) ? 1 : 0;
+ case 7: return (cm3[0] & (1<<3)) ? 1 : 0;
+ default:
+ return 0;
+ }
+}
+
/* According to GSM 04.08 Chapter 10.5.2.29 */
static inline int rach_max_trans_val2raw(int val) { return (val >> 1) & 3; }
static inline int rach_max_trans_raw2val(int raw) {