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-rw-r--r--openbsc/src/rrlp.c44
1 files changed, 37 insertions, 7 deletions
diff --git a/openbsc/src/rrlp.c b/openbsc/src/rrlp.c
index 523b53f0b..60ce750ad 100644
--- a/openbsc/src/rrlp.c
+++ b/openbsc/src/rrlp.c
@@ -1,4 +1,4 @@
-
+/* Radio Resource LCS (Location) Protocol, GMS TS 04.31 */
/* (C) 2009 by Harald Welte <laforge@gnumonks.org>
*
@@ -28,9 +28,42 @@
#include <openbsc/gsm_subscriber.h>
#include <openbsc/chan_alloc.h>
-/* RRLP MS based position request */
+/* RRLP msPositionReq, nsBased,
+ * Accuracy=60, Method=gps, ResponseTime=2, oneSet */
static const u_int8_t ms_based_pos_req[] = { 0x40, 0x01, 0x78, 0xa8 };
+/* RRLP msPositionReq, msBasedPref,
+ Accuracy=60, Method=gpsOrEOTD, ResponseTime=5, multipleSets */
+static const u_int8_t ms_pref_pos_req[] = { 0x40, 0x02, 0x79, 0x50 };
+
+/* RRLP msPositionReq, msAssistedPref,
+ Accuracy=60, Method=gpsOrEOTD, ResponseTime=5, multipleSets */
+static const u_int8_t ass_pref_pos_req[] = { 0x40, 0x03, 0x79, 0x50 };
+
+static int send_rrlp_req(struct gsm_lchan *lchan)
+{
+ struct gsm_network *net = lchan->ts->trx->bts->network;
+ const u_int8_t *req;
+
+ switch (net->rrlp.mode) {
+ case RRLP_MODE_MS_BASED:
+ req = ms_based_pos_req;
+ break;
+ case RRLP_MODE_MS_PREF:
+ req = ms_pref_pos_req;
+ break;
+ case RRLP_MODE_ASS_PREF:
+ req = ass_pref_pos_req;
+ break;
+ case RRLP_MODE_NONE:
+ default:
+ return 0;
+ }
+
+ return gsm48_send_rr_app_info(lchan, 0x00,
+ sizeof(ms_based_pos_req), req);
+}
+
static int subscr_sig_cb(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data)
{
@@ -44,8 +77,7 @@ static int subscr_sig_cb(unsigned int subsys, unsigned int signal,
lchan = lchan_for_subscr(subscr);
if (!lchan)
break;
- gsm48_send_rr_app_info(lchan, 0x00, sizeof(ms_based_pos_req),
- ms_based_pos_req);
+ send_rrlp_req(lchan);
break;
}
return 0;
@@ -59,9 +91,7 @@ static int paging_sig_cb(unsigned int subsys, unsigned int signal,
switch (signal) {
case S_PAGING_COMPLETED:
/* A subscriber has attached. */
- gsm48_send_rr_app_info(psig_data->lchan, 0x00,
- sizeof(ms_based_pos_req),
- ms_based_pos_req);
+ send_rrlp_req(psig_data->lchan);
break;
}
return 0;