From 622b718195d607d7cfc8b9ec96f943ea0ce2d1dd Mon Sep 17 00:00:00 2001 From: Harald Welte Date: Sun, 7 Mar 2010 17:50:21 +0100 Subject: import some gsm band/arfcn/time related utilities from OsmocomBB --- include/osmocore/gsm_utils.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include') diff --git a/include/osmocore/gsm_utils.h b/include/osmocore/gsm_utils.h index b611050..2536045 100644 --- a/include/osmocore/gsm_utils.h +++ b/include/osmocore/gsm_utils.h @@ -27,6 +27,14 @@ #include +struct gsm_time { + uint32_t fn; /* FN count */ + uint16_t t1; /* FN div (26*51) */ + uint8_t t2; /* FN modulo 26 */ + uint8_t t3; /* FN modulo 51 */ + uint8_t tc; +}; + enum gsm_band { GSM_BAND_850 = 1, GSM_BAND_900 = 2, @@ -58,5 +66,19 @@ static inline int rach_max_trans_raw2val(int raw) { return tbl[raw & 3]; } +#define ARFCN_PCS 0x8000 +#define ARFCN_UPLINK 0x4000 + +enum gsm_band gsm_arfcn2band(uint16_t arfcn); + +/* Convert an ARFCN to the frequency in MHz * 10 */ +uint16_t gsm_arfcn2freq10(uint16_t arfcn, int uplink); + +/* Convert from frame number to GSM time */ +void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn); + +/* Convert from GSM time to frame number */ +uint32_t gsm_gsmtime2fn(struct gsm_time *time); + void generate_backtrace(); #endif -- cgit v1.2.3-55-g7522