From fdf8b7b1beeb0cda262c5fb060a933aa7edb5e9a Mon Sep 17 00:00:00 2001 From: Stefan Sperling Date: Fri, 27 Jul 2018 12:19:15 +0200 Subject: port arfcn range encode support from osmo-bsc As part of fixing issue OS#3075, we want to migrate support for encoding system information from osmo-bsc to libosmocore. This change ports one of the prerequisites for doing so: osmo-bsc code for range-encoding ARFCNs, including tests. An osmo_gsm48_ prefix has been prepended to public symbols in order to avoid clashes with existing symbols in osmo-bsc code. Change-Id: Ia220764fba451be5e975ae7c5eefb1a25ac2bf2c Related: OS#3075 --- include/osmocom/gsm/gsm48_arfcn_range_encode.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 include/osmocom/gsm/gsm48_arfcn_range_encode.h (limited to 'include/osmocom') diff --git a/include/osmocom/gsm/gsm48_arfcn_range_encode.h b/include/osmocom/gsm/gsm48_arfcn_range_encode.h new file mode 100644 index 00000000..146c8534 --- /dev/null +++ b/include/osmocom/gsm/gsm48_arfcn_range_encode.h @@ -0,0 +1,25 @@ +/*! \file gsm48_arfcn_range_encode.h */ + +#pragma once + +#include + +enum osmo_gsm48_range { + OSMO_GSM48_ARFCN_RANGE_INVALID = -1, + OSMO_GSM48_ARFCN_RANGE_128 = 127, + OSMO_GSM48_ARFCN_RANGE_256 = 255, + OSMO_GSM48_ARFCN_RANGE_512 = 511, + OSMO_GSM48_ARFCN_RANGE_1024 = 1023, +}; + +#define OSMO_GSM48_RANGE_ENC_MAX_ARFCNS 29 + +int osmo_gsm48_range_enc_determine_range(const int *arfcns, int size, int *f0_out); +int osmo_gsm48_range_enc_arfcns(enum osmo_gsm48_range rng, const int *arfcns, int sze, int *out, int idx); +int osmo_gsm48_range_enc_find_index(enum osmo_gsm48_range rng, const int *arfcns, int size); +int osmo_gsm48_range_enc_filter_arfcns(int *arfcns, const int sze, const int f0, int *f0_included); + +int osmo_gsm48_range_enc_128(uint8_t *chan_list, int f0, int *w); +int osmo_gsm48_range_enc_256(uint8_t *chan_list, int f0, int *w); +int osmo_gsm48_range_enc_512(uint8_t *chan_list, int f0, int *w); +int osmo_gsm48_range_enc_1024(uint8_t *chan_list, int f0, int f0_incl, int *w); -- cgit v1.2.3