#include <stdint.h>
+#define ADD_MODULO(sum, delta, modulo) do { \
+ if ((sum += delta) >= modulo) \
+ sum -= modulo; \
+ } while (0)
+
+#define GSM_MAX_FN (26*51*2048)
+
struct gsm_time {
uint32_t fn; /* FN count */
uint16_t t1; /* FN div (26*51) */
GSM_BAND_810 = 0x80,
};
-char *gsm_band_name(enum gsm_band band);
+const char *gsm_band_name(enum gsm_band band);
enum gsm_band gsm_band_parse(const char *mhz);
int gsm_7bit_decode(char *decoded, const uint8_t *user_data, uint8_t length);
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) {
+ switch (n) {
+ case 0: return 1;
+ case 1: return (cm2[0] & (1<<3)) ? 0 : 1;
+ case 2: return (cm2[2] & (1<<0)) ? 1 : 0;
+ case 3: return (cm2[2] & (1<<1)) ? 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) {
/* Convert from GSM time to frame number */
uint32_t gsm_gsmtime2fn(struct gsm_time *time);
+/* GSM TS 03.03 Chapter 2.6 */
+enum gprs_tlli_type {
+ TLLI_LOCAL,
+ TLLI_FOREIGN,
+ TLLI_RANDOM,
+ TLLI_AUXILIARY,
+ TLLI_RESERVED,
+};
+
+/* TS 03.03 Chapter 2.6 */
+int gprs_tlli_type(uint32_t tlli);
+
+uint32_t gprs_tmsi2tlli(uint32_t p_tmsi, enum gprs_tlli_type type);
+
void generate_backtrace();
#endif