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view gpf/CCD/util/freq_list_codec/dich.h @ 249:b5f180a36b22
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author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 16 Jan 2017 03:18:08 +0000 |
parents | 509db1a7b7b8 |
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/* +----------------------------------------------------------------------------- | Project : G23NET | Modul : dich.h +----------------------------------------------------------------------------- | Copyright 2000-2001 Condat AG | All rights reserved. | | This file is confidential and a trade secret of Condat AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Condat AG. +----------------------------------------------------------------------------- | Purpose : Test of Dichotomy algorithms +----------------------------------------------------------------------------- */ #define SHORT short int #define DICH_RANGE_1024 1024 #define DICH_RANGE_512 512 #define DICH_RANGE_256 256 #define DICH_RANGE_128 128 extern int op_mod ( int x, int y ); /* +------------------------------------------------------------------------------ | Function : rr_dichotomy_encode +------------------------------------------------------------------------------ | Description : The encoding part of the dichotomy algorithm. | On return w[0] contains 'ORIG-ARFCN' (format 128, 256, 512) | or the 'frequency F0 indicator' (format 1024). | The 'frequency F0 indicator' is either | 0 if F0 is not part of the frequency set or | -1 if F0 is part of the frequency set. | The other w's contain the W(i) (refer description of | rr_dichotomy_encode_rec) | | The array 'w' should have a size of at least nf+1 elements. | The array 'f' should have a size of at least 2*nf+1 elements. | | Parameters : f - the frequencies (refer 'Description:') | c_f - number of frequencies, maximum is NF_MAX. | w - the W(i)s | c_w - pointer the number of 'w's is written to | fmt - the used encoding format | | Return : number of elements in w | +------------------------------------------------------------------------------ */ extern USHORT rr_dichotomy_encode ( USHORT *f, USHORT c_f, USHORT *w, USHORT *c_w, USHORT fmt ); /* +------------------------------------------------------------------------------ | Function : rr_dichotomy_decode +------------------------------------------------------------------------------ | Description : The decoding part of the dichotomy algorithm. | The algorithm is described in GSM 04.08 Annex J and | e. g. in section 10.5.1.13 | | Parameters : f - the frequencies | c_f - pointer the number of frequencies is written to | w - the encoded W(i)s | c_w - number of elements in 'w' | fmt - the used decoding format | | Return : number of elements in f | +------------------------------------------------------------------------------ */ extern USHORT rr_dichotomy_decode ( USHORT *f, USHORT *c_f, USHORT *w, USHORT c_w, USHORT fmt ); /* +------------------------------------------------------------------------------ | Function : rr_dich_range_to_ncell_fmt +------------------------------------------------------------------------------ | Description : conversion | | Parameters : a DICH_RANGE_* constant | | Return : a NCELL_FMT_* constant | +------------------------------------------------------------------------------ */ extern USHORT rr_dich_range_to_ncell_fmt ( USHORT range );