From 1195148fc6d0259a2236cbc5908cbd9416a926f9 Mon Sep 17 00:00:00 2001
From: Andreas Eversberg <jolly@eversberg.eu>
Date: Fri, 20 Jul 2012 18:14:34 +0200
Subject: Send RR paging requests to PCU, in order to page on PACCH

---
 src/common/pcu_sock.c | 33 +++++++++++++++++++++++++++++++++
 src/common/rsl.c      |  2 ++
 2 files changed, 35 insertions(+)

(limited to 'src/common')

diff --git a/src/common/pcu_sock.c b/src/common/pcu_sock.c
index 1bf8cd60..d9ea73ee 100644
--- a/src/common/pcu_sock.c
+++ b/src/common/pcu_sock.c
@@ -389,6 +389,39 @@ int pcu_tx_time_ind(uint32_t fn)
 	return pcu_sock_send(&bts_gsmnet, msg);
 }
 
+int pcu_tx_pag_req(uint8_t *identity_lv, uint8_t chan_needed)
+{
+	struct pcu_sock_state *state = bts_gsmnet.pcu_state;
+	struct msgb *msg;
+	struct gsm_pcu_if *pcu_prim;
+	struct gsm_pcu_if_pag_req *pag_req;
+
+	/* check if identity does not fit: length > sizeof(lv) - 1 */
+	if (identity_lv[0] >= sizeof(pag_req->identity_lv)) {
+		LOGP(DPCU, LOGL_ERROR, "Paging identity too large (%d)\n",
+			identity_lv[0]);
+		return -EINVAL;
+	}
+
+	/* socket not created */
+	if (!state) {
+		LOGP(DPCU, LOGL_DEBUG, "PCU socket not created, ignoring "
+			"paging message\n");
+		return 0;
+	}
+
+	msg = pcu_msgb_alloc(PCU_IF_MSG_PAG_REQ, 0);
+	if (!msg)
+		return -ENOMEM;
+	pcu_prim = (struct gsm_pcu_if *) msg->data;
+	pag_req = &pcu_prim->u.pag_req;
+
+	pag_req->chan_needed = chan_needed;
+	memcpy(pag_req->identity_lv, identity_lv, identity_lv[0] + 1);
+
+	return pcu_sock_send(&bts_gsmnet, msg);
+}
+
 static int pcu_rx_data_req(struct gsm_bts *bts, uint8_t msg_type,
 	struct gsm_pcu_if_data *data_req)
 {
diff --git a/src/common/rsl.c b/src/common/rsl.c
index 6d409885..7c17b63d 100644
--- a/src/common/rsl.c
+++ b/src/common/rsl.c
@@ -398,6 +398,8 @@ static int rsl_rx_paging_cmd(struct gsm_bts_trx *trx, struct msgb *msg)
 		/* FIXME: notfiy the BSC somehow ?*/
 	}
 
+	pcu_tx_pag_req(identity_lv, chan_needed);
+
 	return 0;
 }
 
-- 
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