diff options
Diffstat (limited to 'lib/decoding/osmocom/coding/gsm0503_mapping.c')
| -rw-r--r-- | lib/decoding/osmocom/coding/gsm0503_mapping.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/lib/decoding/osmocom/coding/gsm0503_mapping.c b/lib/decoding/osmocom/coding/gsm0503_mapping.c index 45275bf..f7532eb 100644 --- a/lib/decoding/osmocom/coding/gsm0503_mapping.c +++ b/lib/decoding/osmocom/coding/gsm0503_mapping.c @@ -4,6 +4,8 @@ * * All Rights Reserved * + * SPDX-License-Identifier: GPL-2.0+ + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -23,7 +25,17 @@ #include <string.h> #include <osmocom/core/bits.h> -#include "gsm0503_mapping.h" +#include <osmocom/coding/gsm0503_mapping.h> + +/*! \addtogroup mapping + * @{ + * + * GSM TS 05.03 burst mapping + * + * This module contains burst mapping routines as specified in 3GPP TS + * 05.03 / 45.003. + * + * \file gsm0503_mapping.c */ void gsm0503_xcch_burst_unmap(sbit_t *iB, const sbit_t *eB, sbit_t *hl, sbit_t *hn) @@ -38,7 +50,7 @@ void gsm0503_xcch_burst_unmap(sbit_t *iB, const sbit_t *eB, *hn = eB[58]; } -void gsm0503_xcch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *hl, +void gsm0503_xcch_burst_map(const ubit_t *iB, ubit_t *eB, const ubit_t *hl, const ubit_t *hn) { memcpy(eB, iB, 57); @@ -50,7 +62,7 @@ void gsm0503_xcch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *hl, eB[58] = *hn; } -void gsm0503_tch_burst_unmap(sbit_t *iB, sbit_t *eB, sbit_t *h, int odd) +void gsm0503_tch_burst_unmap(sbit_t *iB, const sbit_t *eB, sbit_t *h, int odd) { int i; @@ -70,7 +82,7 @@ void gsm0503_tch_burst_unmap(sbit_t *iB, sbit_t *eB, sbit_t *h, int odd) } } -void gsm0503_tch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *h, int odd) +void gsm0503_tch_burst_map(const ubit_t *iB, ubit_t *eB, const ubit_t *h, int odd) { int i; @@ -80,13 +92,8 @@ void gsm0503_tch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *h, int odd) eB[i] = iB[i]; for (i = 58 - odd; i < 114; i += 2) eB[i + 2] = iB[i]; - } - - if (h) { - if (!odd) - eB[58] = *h; - else - eB[57] = *h; + if (h) + eB[odd ? 57 : 58] = *h; } } @@ -289,3 +296,5 @@ void gsm0503_mcs5_burst_swap(sbit_t *eB) eB[191] = t[12]; eB[194] = t[13]; } + +/*! @} */ |