[PATCH 2/2] bts: add E1INP_LINE_R_BTS_RSL_ONLY mode

[pablo]

From: Pablo Neira Ayuso <pa...@gnumonks.org>

This patch adds the E1INP_LINE_R_BTS_RSL_ONLY that brings the
RSL link without the OML link. This mode is useful for the
multi-TRX BTS setup.
---
 include/osmocom/abis/e1_input.h |    1 +
 src/input/ipaccess.c            |   15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/include/osmocom/abis/e1_input.h b/include/osmocom/abis/e1_input.h
index fac7bac..037e353 100644
--- a/include/osmocom/abis/e1_input.h
+++ b/include/osmocom/abis/e1_input.h
@@ -123,6 +123,7 @@ enum e1inp_line_role {
        E1INP_LINE_R_NONE,
        E1INP_LINE_R_BSC,
        E1INP_LINE_R_BTS,
+       E1INP_LINE_R_BTS_RSL_ONLY,
        E1INP_LINE_R_MAX
 };
 
diff --git a/src/input/ipaccess.c b/src/input/ipaccess.c
index 0fce15e..0f995e7 100644
--- a/src/input/ipaccess.c
+++ b/src/input/ipaccess.c
@@ -1044,6 +1044,21 @@ static int ipaccess_line_update(struct e1inp_line *line)
                break;
                }
        }
+       case E1INP_LINE_R_BTS_RSL_ONLY:
+               switch(il->state) {
+               case NONE:
+                       LOGP(DLINP, LOGL_NOTICE, "enabling ipaccess BTS mode "
+                                                "in RSL mode only\n");
+                       ret = ipaccess_bts_rsl_link_up(line);
+                       il->state = ALL_UP;
+                       break;
+               default:
+                       LOGP(DLINP, LOGL_ERROR, "ipaccess BTS RSL link already "
+                                               "up and running\n");
+                       ret = -EBUSY;
+                       break;
+               break;
+               }
        default:
                break;
        }
-- 
1.7.10.4