LAPDm: Add support for RTS based polling
The lower layer must set the 'POLLING_ONLY' flag and provide frame
number when polling a frame. If T200 is pending, it is started with a
timeout frame number in advance to given frame number.
The lower layer must call lapdm_t200_fn() after a frame has been
received or if a frame has not been received. Also it must be called
after a TCH frame has been received. LAPDm uses this to check the T200
timeout condition.
A new function is used to set the frame number based timeout values.
Related: OS#4074
Change-Id: I6ebe83f829d7751ea9de1d90eb478c7a628db64c
diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map
index 056d320..6bb3b4b 100644
--- a/src/gsm/libosmogsm.map
+++ b/src/gsm/libosmogsm.map
@@ -587,7 +587,11 @@
lapdm_entity_reset;
lapdm_entity_set_flags;
lapdm_entity_set_mode;
+lapdm_entity_set_t200_fn;
+lapdm_channel_set_t200_fn;
lapdm_phsap_dequeue_prim;
+lapdm_phsap_dequeue_prim_fn;
+lapdm_t200_fn;
lapdm_phsap_up;
lapdm_rslms_recvmsg;