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bts: Move rcv_imm_ass_cnf into the bts code

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This commit is contained in:
Holger Hans Peter Freyther
2013-10-26 19:49:16 +02:00
parent 7292373f92
commit 40cfaa6837
5 changed files with 42 additions and 44 deletions
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39
src/bts.cpp
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@@ -291,6 +291,45 @@ int BTS::tfi_find_free(enum gprs_rlcmac_tbf_direction dir,
return -1;
}
int BTS::rcv_imm_ass_cnf(const uint8_t *data, uint32_t fn)
{
struct gprs_rlcmac_tbf *tbf;
uint8_t plen;
uint32_t tlli;
/* move to IA Rest Octets */
plen = data[0] >> 2;
data += 1 + plen;
if ((*data & 0xf0) != 0xd0) {
LOGP(DRLCMAC, LOGL_ERROR, "Got IMM.ASS confirm, but rest "
"octets do not start with bit sequence 'HH01' "
"(Packet Downlink Assignment)\n");
return -EINVAL;
}
/* get TLLI from downlink assignment */
tlli = (*data++) << 28;
tlli |= (*data++) << 20;
tlli |= (*data++) << 12;
tlli |= (*data++) << 4;
tlli |= (*data++) >> 4;
tbf = tbf_by_tlli(tlli, GPRS_RLCMAC_DL_TBF);
if (!tbf) {
LOGP(DRLCMAC, LOGL_ERROR, "Got IMM.ASS confirm, but TLLI=%08x "
"does not exit\n", tlli);
return -EINVAL;
}
LOGP(DRLCMAC, LOGL_DEBUG, "Got IMM.ASS confirm for TLLI=%08x\n", tlli);
if (tbf->dir.dl.wait_confirm)
tbf_timer_start(tbf, 0, Tassign_agch);
return 0;
}
/*
* PDCH code below. TODO: move to a separate file