cellular-infrastructure
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osmo-msc
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Proposal for a "channel request" interface... 

Reuqests for a subscriber a stored within the gsm_subscriber
datastructure and it will keep track how many channels are
allocated for this user and of which type to decide on policy...

e.g. attempt to submit SMS during a phone call and not doing
paging but a simple (immediate) assignment of the channel...
This commit is contained in:
Holger Freyther 2009-03-31 04:35:19 +02:00 committed by Holger Hans Peter Freyther
parent fdac4cc176
commit 04866d4279
5 changed files with 21 additions and 4 deletions
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6
openbsc/include/openbsc/gsm_subscriber.h
View File

@ -31,6 +31,9 @@ struct gsm_subscriber {
u_int8_t classmark2[3];
u_int8_t classmark3_len;
u_int8_t classmark3[14];
/* pending requests */
struct llist_head requests;
};
enum gsm_subscriber_field {
@ -51,6 +54,9 @@ struct gsm_subscriber *subscr_get_by_imsi(const char *imsi);
struct gsm_subscriber *subscr_get_by_extension(const char *ext);
int subscr_update(struct gsm_subscriber *s, struct gsm_bts *bts, int reason);
void subscr_put_channel(struct gsm_lchan *lchan);
void subscr_get_channel(struct gsm_subscriber *subscr,
struct gsm_network *network, int type,
gsm_cbfn *cbfn, void *param);
/* internal */
struct gsm_subscriber *subscr_alloc(void);

2
openbsc/include/openbsc/paging.h
View File

@ -33,7 +33,7 @@
void paging_init(struct gsm_bts *bts);
/* schedule paging request */
void paging_request(struct gsm_bts *bts, struct gsm_subscriber *subscr,
void paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
int type, gsm_cbfn *cbfn, void *data);
/* stop paging requests */

2
openbsc/src/gsm_04_08.c
View File

@ -1333,7 +1333,7 @@ static int gsm48_cc_rx_setup(struct msgb *msg)
call->called_subscr = called_subscr;
/* Start paging subscriber on all BTS in LAC of subscriber */
paging_request(msg->trx->bts, called_subscr, RSL_CHANNEED_TCH_F,
subscr_get_channel(called_subscr, msg->trx->bts->network, RSL_CHANNEED_TCH_F,
setup_trig_pag_evt, call);
/* send a CALL PROCEEDING message to the MO */

11
openbsc/src/gsm_subscriber.c
View File

@ -27,6 +27,7 @@
#include <string.h>
#include <openbsc/gsm_subscriber.h>
#include <openbsc/paging.h>
#include <openbsc/debug.h>
#include <openbsc/db.h>
@ -45,6 +46,8 @@ struct gsm_subscriber *subscr_alloc(void)
llist_add_tail(&s->entry, &active_subscribers);
s->use_count = 1;
INIT_LLIST_HEAD(&s->requests);
return s;
}
@ -131,6 +134,13 @@ struct gsm_subscriber *subscr_put(struct gsm_subscriber *subscr)
return NULL;
}
void subscr_get_channel(struct gsm_subscriber *subscr,
struct gsm_network *network, int type,
gsm_cbfn *cbfn, void *param)
{
paging_request(network, subscr, type, cbfn, param);
}
void subscr_put_channel(struct gsm_lchan *lchan)
{
/*
@ -141,3 +151,4 @@ void subscr_put_channel(struct gsm_lchan *lchan)
*/
put_lchan(lchan);
}

4
openbsc/src/paging.c
View File

@ -237,13 +237,13 @@ static void _paging_request(struct gsm_bts *bts, struct gsm_subscriber *subscr,
bsc_schedule_timer(&bts_entry->work_timer, 1, 0);
}
void paging_request(struct gsm_bts *_bts, struct gsm_subscriber *subscr,
void paging_request(struct gsm_network *network, struct gsm_subscriber *subscr,
int type, gsm_cbfn *cbfn, void *data)
{
struct gsm_bts *bts = NULL;
do {
bts = gsm_bts_by_lac(_bts->network, subscr->lac, bts);
bts = gsm_bts_by_lac(network, subscr->lac, bts);
if (!bts)
break;