layer23: modem: Submit L1CTL-CCCH_READY.ind

Signal RLC/MAC layer that the lower layers is in packet idle mode ready
to use CCCH (such as packet-access-procedure).

Change-Id: I05050e840a3b267b3b3a278588ee113b45bfbd4c
---
M src/host/layer23/src/modem/grr.c
1 file changed, 16 insertions(+), 0 deletions(-)

diff --git a/src/host/layer23/src/modem/grr.c b/src/host/layer23/src/modem/grr.c
index cf94695..f0bbf89 100644
--- a/src/host/layer23/src/modem/grr.c
+++ b/src/host/layer23/src/modem/grr.c
@@ -516,6 +516,10 @@
 static void grr_st_packet_idle_onenter(struct osmo_fsm_inst *fi, uint32_t prev_state)
 {
 	struct osmocom_ms *ms = fi->priv;
+	struct osmo_gprs_rlcmac_prim *prim;
+
+	prim = osmo_gprs_rlcmac_prim_alloc_l1ctl_ccch_ready_ind();
+	osmo_gprs_rlcmac_prim_lower_up(prim);
 
 	modem_gprs_attach_if_needed(ms);
 }

