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osmo-bsc
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generalize function for calculation of the paging group

This commit is contained in:
Harald Welte 2011-06-26 14:43:46 +02:00
parent bc82f92a8d
commit 1cf43ece12
1 changed files with 10 additions and 7 deletions
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17
openbsc/src/libbsc/paging.c
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@ -54,19 +54,20 @@ void *tall_paging_ctx;
#define PAGING_TIMER 0, 500000
static unsigned int calculate_group(struct gsm_bts *bts, struct gsm_subscriber *subscr)
static unsigned int
gsm0502_calc_paging_group(struct gsm48_control_channel_descr *chan_desc, uint64_t imsi)
{
int ccch_conf;
int bs_cc_chans;
int blocks;
unsigned int group;
ccch_conf = bts->si_common.chan_desc.ccch_conf;
ccch_conf = chan_desc->ccch_conf;
bs_cc_chans = rsl_ccch_conf_to_bs_cc_chans(ccch_conf);
/* code word + 2, as 2 channels equals 0x0 */
blocks = gsm48_number_of_paging_subchannels(&bts->si_common.chan_desc);
group = gsm0502_get_paging_group(str_to_imsi(subscr->imsi),
bs_cc_chans, blocks);
blocks = gsm48_number_of_paging_subchannels(chan_desc);
group = gsm0502_get_paging_group(imsi, bs_cc_chans, blocks);
return group;
}
@ -87,6 +88,7 @@ static void page_ms(struct gsm_paging_request *request)
uint8_t mi[128];
unsigned int mi_len;
unsigned int page_group;
struct gsm_bts *bts = request->bts;
LOGP(DPAG, LOGL_INFO, "Going to send paging commands: imsi: '%s' tmsi: '0x%x'\n",
request->subscr->imsi, request->subscr->tmsi);
@ -96,8 +98,9 @@ static void page_ms(struct gsm_paging_request *request)
else
mi_len = gsm48_generate_mid_from_tmsi(mi, request->subscr->tmsi);
page_group = calculate_group(request->bts, request->subscr);
gsm0808_page(request->bts, page_group, mi_len, mi, request->chan_type);
page_group = gsm0502_calc_paging_group(&bts->si_common.chan_desc,
str_to_imsi(request->subscr->imsi));
gsm0808_page(bts, page_group, mi_len, mi, request->chan_type);
}
static void paging_schedule_if_needed(struct gsm_bts_paging_state *paging_bts)