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gsm0502: add burst length definitions from chapter 5.2 

Change-Id: I1c38ccc2b64ba9046bb3b1221d99cc55ec493802
Related: OS#1572
This commit is contained in:
Vadim Yanitskiy 2023-03-06 04:42:14 +07:00 committed by fixeria
parent c9527763c2
commit c657a5028e
1 changed files with 30 additions and 0 deletions
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30
include/osmocom/gsm/gsm0502.h
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@ -31,6 +31,36 @@
#define GSM_TDMA_FN_DEC(fn) \
((fn) = GSM_TDMA_FN_SUB((fn), 1))
/* 5.2.3.1 Normal burst for GMSK (1 bit per symbol) */
#define GSM_NBITS_NB_GMSK_TAIL 3
#define GSM_NBITS_NB_GMSK_PAYLOAD (2 * 58)
#define GSM_NBITS_NB_GMSK_TRAIN_SEQ 26
#define GSM_NBITS_NB_GMSK_BURST 148 /* without guard period */
/* 5.2.3.3 Normal burst for 8-PSK (3 bits per symbol) */
#define GSM_NBITS_NB_8PSK_TAIL (GSM_NBITS_NB_GMSK_TAIL * 3)
#define GSM_NBITS_NB_8PSK_PAYLOAD (GSM_NBITS_NB_GMSK_PAYLOAD * 3)
#define GSM_NBITS_NB_8PSK_TRAIN_SEQ (GSM_NBITS_NB_GMSK_TRAIN_SEQ * 3)
#define GSM_NBITS_NB_8PSK_BURST (GSM_NBITS_NB_GMSK_BURST * 3)
/* 5.2.5 Synchronization burst (also GMSK) */
#define GSM_NBITS_SB_GMSK_TAIL GSM_NBITS_NB_GMSK_TAIL
#define GSM_NBITS_SB_GMSK_PAYLOAD (2 * 39)
#define GSM_NBITS_SB_GMSK_ETRAIN_SEQ 64
#define GSM_NBITS_SB_GMSK_BURST GSM_NBITS_NB_GMSK_BURST
/* 5.2.6 Dummy burst (also GMSK) */
#define GSM_NBITS_DB_GMSK_TAIL GSM_NBITS_NB_GMSK_TAIL
#define GSM_NBITS_DB_GMSK_MIXED 142
#define GSM_NBITS_DB_GMSK_BURST GSM_NBITS_NB_GMSK_BURST
/* 5.2.7 Access burst (also GMSK) */
#define GSM_NBITS_AB_GMSK_ETAIL 8
#define GSM_NBITS_AB_GMSK_SYNCH_SEQ 41
#define GSM_NBITS_AB_GMSK_PAYLOAD 36
#define GSM_NBITS_AB_GMSK_TAIL GSM_NBITS_NB_GMSK_TAIL
#define GSM_NBITS_AB_GMSK_BURST GSM_NBITS_NB_GMSK_BURST
/* Table 5 Clause 7 TS 05.02 */
static inline unsigned int
gsm0502_get_n_pag_blocks(const struct gsm48_control_channel_descr *chan_desc)