diff options
| author | Andreas Eversberg <jolly@eversberg.eu> | 2013-03-14 07:56:05 +0100 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2015-09-22 16:41:27 +0200 |
| commit | 84b9a445351937703334629f3fec02689153f986 (patch) | |
| tree | f66ca064ed111eed011491332213be3bb3d20293 /src/osmo-bts-trx/gsm0503_mapping.c | |
| parent | 7ff22823ca8e2dd1e990578a2dbf6942b1911eed (diff) | |
TRX: Code cleanup, prepare for other codecs than GSM full rate
Diffstat (limited to 'src/osmo-bts-trx/gsm0503_mapping.c')
| -rw-r--r-- | src/osmo-bts-trx/gsm0503_mapping.c | 49 |
1 files changed, 28 insertions, 21 deletions
diff --git a/src/osmo-bts-trx/gsm0503_mapping.c b/src/osmo-bts-trx/gsm0503_mapping.c index e5ee9206..bdaddcef 100644 --- a/src/osmo-bts-trx/gsm0503_mapping.c +++ b/src/osmo-bts-trx/gsm0503_mapping.c @@ -30,36 +30,43 @@ void gsm0503_xcch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *hl, eB[58] = *hn; } -void gsm0503_tch_fr_burst_unmap(sbit_t *iB, sbit_t *eB, sbit_t *h, int odd) +void gsm0503_tch_burst_unmap(sbit_t *iB, sbit_t *eB, sbit_t *h, int odd) { int i; /* brainfuck: only copy even or odd bits */ - for (i=odd; i<57; i+=2) - iB[i] = eB[i]; - for (i=58-odd; i<114; i+=2) - iB[i] = eB[i+2]; - - if (h && !odd) - *h = eB[58]; - - if (h && odd) - *h = eB[57]; + if (iB) { + for (i=odd; i<57; i+=2) + iB[i] = eB[i]; + for (i=58-odd; i<114; i+=2) + iB[i] = eB[i+2]; + } + + if (h) { + if (!odd) + *h = eB[58]; + else + *h = eB[57]; + } } -void gsm0503_tch_fr_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *h, int odd) +void gsm0503_tch_burst_map(ubit_t *iB, ubit_t *eB, const ubit_t *h, int odd) { int i; /* brainfuck: only copy even or odd bits */ - for (i=odd; i<57; i+=2) - eB[i] = iB[i]; - for (i=58-odd; i<114; i+=2) - eB[i+2] = iB[i]; - - if (h && !odd) - eB[58] = *h; - if (h && odd) - eB[57] = *h; + if (eB) { + for (i=odd; i<57; i+=2) + 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; + } } |