1 files changed, 65 insertions, 0 deletions
diff --git a/src/bts_anr_fsm.h b/src/bts_anr_fsm.h
new file mode 100644
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--- /dev/null
+++ b/src/bts_anr_fsm.h
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+/* bts_anr_fsm.h
+ *
+ * Copyright (C) 2021 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+#pragma once
+
+#include <osmocom/core/fsm.h>
+#include <osmocom/gsm/gsm23003.h>
+
+#include <pcu_utils.h>
+
+#define MAX_NEIGH_LIST_LEN 96
+
+struct gprs_rlcmac_bts;
+
+enum bts_anr_fsm_event {
+	BTS_ANR_EV_RX_ANR_REQ, /* data: struct gsm_pcu_if_anr_req* */
+	BTS_ANR_EV_SCHED_MS_MEAS,
+	BTS_ANR_EV_MS_MEAS_COMPL, /* data: struct ms_anr_ev_meas_compl* */
+	BTS_ANR_EV_MS_MEAS_ABORTED, /* data: struct ms_anr_ev_meas_abort* */
+};
+
+enum bts_anr_fsm_states {
+	BTS_ANR_ST_DISABLED,
+	BTS_ANR_ST_ENABLED
+};
+
+struct bts_anr_fsm_ctx {
+	struct osmo_fsm_inst *fi;
+	struct gprs_rlcmac_bts *bts; /* back pointer */
+	struct arfcn_bsic cell_list[MAX_NEIGH_LIST_LEN]; /* ordered by ascending ARFCN */
+	unsigned int num_cells;
+	unsigned int next_cell; /* Next cell list subset starts from this index */
+};
+
+/* passed as data in BTS_ANR_EV_MS_MEAS_COMPL */
+
+struct ms_anr_ev_meas_compl {
+	const struct arfcn_bsic *cell_list; /* len() = num_cells */
+	const uint8_t *meas_list; /* len() = num_cells, value 0xff means invalid */
+	unsigned int num_cells;
+};
+
+/* passed as data in BTS_ANR_EV_MS_MEAS_ABORT */
+struct ms_anr_ev_abort {
+	const struct arfcn_bsic* cell_list;
+	unsigned int num_cells;
+};
+
+struct bts_anr_fsm_ctx *bts_anr_fsm_alloc(struct gprs_rlcmac_bts* bts);