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-rw-r--r--include/osmo-bts/pcu_if.h1
-rw-r--r--include/osmo-bts/pcuif_proto.h9
-rw-r--r--src/common/pcu_sock.c21
-rw-r--r--src/common/rsl.c5
4 files changed, 36 insertions, 0 deletions
diff --git a/include/osmo-bts/pcu_if.h b/include/osmo-bts/pcu_if.h
index 6253c84c..114f87d1 100644
--- a/include/osmo-bts/pcu_if.h
+++ b/include/osmo-bts/pcu_if.h
@@ -5,6 +5,7 @@ extern int pcu_direct;
int pcu_tx_info_ind(void);
int pcu_tx_si13(const struct gsm_bts *bts, bool enable);
+int pcu_tx_app_info_req(struct gsm_bts *bts, uint8_t app_type, uint8_t len, const uint8_t *app_data);
int pcu_tx_rts_req(struct gsm_bts_trx_ts *ts, uint8_t is_ptcch, uint32_t fn,
uint16_t arfcn, uint8_t block_nr);
int pcu_tx_data_ind(struct gsm_bts_trx_ts *ts, uint8_t is_ptcch, uint32_t fn,
diff --git a/include/osmo-bts/pcuif_proto.h b/include/osmo-bts/pcuif_proto.h
index 144fba68..2d24c434 100644
--- a/include/osmo-bts/pcuif_proto.h
+++ b/include/osmo-bts/pcuif_proto.h
@@ -13,6 +13,7 @@
#define PCU_IF_MSG_DATA_CNF 0x01 /* confirm (e.g. transmission on PCH) */
#define PCU_IF_MSG_DATA_IND 0x02 /* receive data from given channel */
#define PCU_IF_MSG_SUSP_REQ 0x03 /* BTS forwards GPRS SUSP REQ to PCU */
+#define PCU_IF_MSG_APP_INFO_REQ 0x04 /* BTS asks PCU to tranmit APP INFO via PACCH */
#define PCU_IF_MSG_RTS_REQ 0x10 /* ready to send request */
#define PCU_IF_MSG_DATA_CNF_DT 0x11 /* confirm (with direct tlli) */
#define PCU_IF_MSG_RACH_IND 0x22 /* receive RACH */
@@ -172,6 +173,13 @@ struct gsm_pcu_if_pag_req {
uint8_t identity_lv[9];
} __attribute__ ((packed));
+/* BTS tells PCU to [once] send given application data via PACCH to all UE with active TBF */
+struct gsm_pcu_if_app_info_req {
+ uint8_t application_type; /* 4bit field, see TS 44.060 11.2.47 */
+ uint8_t len; /* length of data */
+ uint8_t data[162]; /* random size choice; ETWS needs 56 bytes */
+} __attribute__ ((packed));
+
/* BTS tells PCU about a GPRS SUSPENSION REQUEST received on DCCH */
struct gsm_pcu_if_susp_req {
uint32_t tlli;
@@ -198,6 +206,7 @@ struct gsm_pcu_if {
struct gsm_pcu_if_act_req act_req;
struct gsm_pcu_if_time_ind time_ind;
struct gsm_pcu_if_pag_req pag_req;
+ struct gsm_pcu_if_app_info_req app_info_req;
} u;
} __attribute__ ((packed));
diff --git a/src/common/pcu_sock.c b/src/common/pcu_sock.c
index 84a98f5e..ba9e1721 100644
--- a/src/common/pcu_sock.c
+++ b/src/common/pcu_sock.c
@@ -290,6 +290,27 @@ static int pcu_if_signal_cb(unsigned int subsys, unsigned int signal,
return 0;
}
+int pcu_tx_app_info_req(struct gsm_bts *bts, uint8_t app_type, uint8_t len, const uint8_t *app_data)
+{
+ struct gsm_pcu_if_app_info_req *ai_req;
+ struct gsm_pcu_if *pcu_prim;
+ struct msgb *msg;
+
+ if (app_type & 0xF0 || len > sizeof(ai_req->data))
+ return -EINVAL;
+
+ msg = pcu_msgb_alloc(PCU_IF_MSG_APP_INFO_REQ, bts->nr);
+ if (!msg)
+ return -ENOMEM;
+ pcu_prim = (struct gsm_pcu_if *) msg->data;
+ ai_req = &pcu_prim->u.app_info_req;
+
+ ai_req->application_type = app_type;
+ ai_req->len = len;
+ memcpy(ai_req->data, app_data, ai_req->len);
+
+ return pcu_sock_send(&bts_gsmnet, msg);
+}
int pcu_tx_rts_req(struct gsm_bts_trx_ts *ts, uint8_t is_ptcch, uint32_t fn,
uint16_t arfcn, uint8_t block_nr)
diff --git a/src/common/rsl.c b/src/common/rsl.c
index 0bcad4c0..056c16d8 100644
--- a/src/common/rsl.c
+++ b/src/common/rsl.c
@@ -558,6 +558,11 @@ static int rsl_rx_osmo_etws_cmd(struct gsm_bts_trx *trx, struct msgb *msg)
/* toggle the PNI to allow phones to distinguish new from old primary notification */
bts->etws.pni = !bts->etws.pni;
+
+ /* forward the request to the PCU, so the PCU can send it over any active TBF
+ * to phones which currently don't listen to the paging channel */
+ pcu_tx_app_info_req(bts, 0, TLVP_LEN(&tp, RSL_IE_SMSCB_MSG),
+ TLVP_VAL(&tp, RSL_IE_SMSCB_MSG));
}
return 0;
}