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bts, tbf: Change the TBF return type of functions to the ul/dl version 

Many functions only ever deal with or return a UL or a DL TBF.
Explicitly change the type to reflect which TBF is used where.

Ticket: SYS#389
Sponsored-by: On-Waves ehf
This commit is contained in:
Daniel Willmann 2014-07-10 17:44:07 +02:00 committed by Holger Hans Peter Freyther
parent fe6e2e4a08
commit 0d12a2fa89
3 changed files with 30 additions and 23 deletions
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45
src/bts.cpp
View File

@ -417,7 +417,7 @@ int BTS::rcv_imm_ass_cnf(const uint8_t *data, uint32_t fn)
int BTS::rcv_rach(uint8_t ra, uint32_t Fn, int16_t qta)
{
struct gprs_rlcmac_tbf *tbf;
struct gprs_rlcmac_ul_tbf *tbf;
uint8_t trx_no, ts_no = 0;
int8_t tfi; /* must be signed */
uint8_t sb = 0;
@ -461,7 +461,7 @@ int BTS::rcv_rach(uint8_t ra, uint32_t Fn, int16_t qta)
return -EBUSY;
}
/* set class to 0, since we don't know the multislot class yet */
tbf = tbf_alloc(&m_bts, NULL, GPRS_RLCMAC_UL_TBF, tfi, trx_no, 0, 1);
tbf = (gprs_rlcmac_ul_tbf *)tbf_alloc(&m_bts, NULL, GPRS_RLCMAC_UL_TBF, tfi, trx_no, 0, 1);
if (!tbf) {
LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n");
/* FIXME: send reject */
@ -692,7 +692,7 @@ void gprs_rlcmac_pdch::add_paging(struct gprs_rlcmac_paging *pag)
*/
int gprs_rlcmac_pdch::rcv_data_block_acknowledged(uint8_t *data, uint8_t len, int8_t rssi)
{
struct gprs_rlcmac_tbf *tbf;
struct gprs_rlcmac_ul_tbf *tbf;
struct rlc_ul_header *rh = (struct rlc_ul_header *)data;
switch (len) {
@ -867,24 +867,24 @@ void gprs_rlcmac_pdch::rcv_control_dl_ack_nack(Packet_Downlink_Ack_Nack_t *ack_n
void gprs_rlcmac_pdch::rcv_resource_request(Packet_Resource_Request_t *request, uint32_t fn)
{
struct gprs_rlcmac_tbf *tbf;
struct gprs_rlcmac_sba *sba;
int rc;
if (request->ID.UnionType) {
struct gprs_rlcmac_ul_tbf *ul_tbf;
struct gprs_rlcmac_dl_tbf *dl_tbf;
uint32_t tlli = request->ID.u.TLLI;
uint8_t ms_class = 0;
struct gprs_rlcmac_tbf *dl_tbf;
uint8_t ta;
tbf = bts()->ul_tbf_by_tlli(tlli);
if (tbf) {
ul_tbf = bts()->ul_tbf_by_tlli(tlli);
if (ul_tbf) {
LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
"TLLI=0x%08x while %s still "
"exists. Killing pending DL TBF\n",
tlli, tbf_name(tbf));
tbf_free(tbf);
tbf = NULL;
tlli, tbf_name(ul_tbf));
tbf_free(ul_tbf);
ul_tbf = NULL;
}
if ((dl_tbf = bts()->dl_tbf_by_tlli(tlli))) {
@ -918,34 +918,41 @@ void gprs_rlcmac_pdch::rcv_resource_request(Packet_Resource_Request_t *request,
ms_class = Decoding::get_ms_class_by_capability(&request->MS_Radio_Access_capability);
if (!ms_class)
LOGP(DRLCMAC, LOGL_NOTICE, "MS does not give us a class.\n");
tbf = tbf_alloc_ul(bts_data(), trx_no(), ms_class, tlli, ta, NULL);
if (!tbf)
ul_tbf = tbf_alloc_ul(bts_data(), trx_no(), ms_class, tlli, ta, NULL);
if (!ul_tbf)
return;
/* set control ts to current MS's TS, until assignment complete */
LOGP(DRLCMAC, LOGL_DEBUG, "Change control TS to %d until assinment is complete.\n", ts_no);
tbf->control_ts = ts_no;
ul_tbf->control_ts = ts_no;
/* schedule uplink assignment */
tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS;
ul_tbf->ul_ass_state = GPRS_RLCMAC_UL_ASS_SEND_ASS;
return;
}
if (request->ID.u.Global_TFI.UnionType) {
struct gprs_rlcmac_dl_tbf *dl_tbf;
int8_t tfi = request->ID.u.Global_TFI.u.DOWNLINK_TFI;
tbf = bts()->dl_tbf_by_tfi(tfi, trx_no());
if (!tbf) {
dl_tbf = bts()->dl_tbf_by_tfi(tfi, trx_no());
if (!dl_tbf) {
LOGP(DRLCMAC, LOGL_NOTICE, "PACKET RESSOURCE REQ unknown downlink TFI=%d\n", tfi);
return;
}
LOGP(DRLCMAC, LOGL_ERROR,
"RX: [PCU <- BTS] %s FIXME: Packet resource request\n",
tbf_name(dl_tbf));
} else {
struct gprs_rlcmac_ul_tbf *ul_tbf;
int8_t tfi = request->ID.u.Global_TFI.u.UPLINK_TFI;
tbf = bts()->ul_tbf_by_tfi(tfi, trx_no());
if (!tbf) {
ul_tbf = bts()->ul_tbf_by_tfi(tfi, trx_no());
if (!ul_tbf) {
LOGP(DRLCMAC, LOGL_NOTICE, "PACKET RESSOURCE REQ unknown uplink TFI=%d\n", tfi);
return;
}
LOGP(DRLCMAC, LOGL_ERROR,
"RX: [PCU <- BTS] %s FIXME: Packet resource request\n",
tbf_name(ul_tbf));
}
LOGP(DRLCMAC, LOGL_ERROR, "RX: [PCU <- BTS] %s FIXME: Packet resource request\n", tbf_name(tbf));
}
void gprs_rlcmac_pdch::rcv_measurement_report(Packet_Measurement_Report_t *report, uint32_t fn)

6
src/tbf.cpp
View File

@ -214,12 +214,12 @@ int gprs_rlcmac_tbf::handle(struct gprs_rlcmac_bts *bts,
return tbf_new_dl_assignment(bts, imsi, tlli, ms_class, data, len);
}
struct gprs_rlcmac_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts,
gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts,
int8_t use_trx, uint8_t ms_class,
uint32_t tlli, uint8_t ta, struct gprs_rlcmac_tbf *dl_tbf)
{
uint8_t trx;
struct gprs_rlcmac_tbf *tbf;
struct gprs_rlcmac_ul_tbf *tbf;
int8_t tfi; /* must be signed */
#warning "Copy and paste with tbf_new_dl_assignment"
@ -231,7 +231,7 @@ struct gprs_rlcmac_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts,
return NULL;
}
/* use multislot class of downlink TBF */
tbf = tbf_alloc(bts, dl_tbf, GPRS_RLCMAC_UL_TBF, tfi, trx, ms_class, 0);
tbf = (gprs_rlcmac_ul_tbf *)tbf_alloc(bts, dl_tbf, GPRS_RLCMAC_UL_TBF, tfi, trx, ms_class, 0);
if (!tbf) {
LOGP(DRLCMAC, LOGL_NOTICE, "No PDCH resource\n");
/* FIXME: send reject */

2
src/tbf.h
View File

@ -259,7 +259,7 @@ protected:
};
struct gprs_rlcmac_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts,
struct gprs_rlcmac_ul_tbf *tbf_alloc_ul(struct gprs_rlcmac_bts *bts,
int8_t use_trx, uint8_t ms_class,
uint32_t tlli, uint8_t ta, struct gprs_rlcmac_tbf *dl_tbf);