1 files changed, 152 insertions, 0 deletions
diff --git a/src/common/nm_bts_fsm.c b/src/common/nm_bts_fsm.c
new file mode 100644
index 00000000..1343fb38
--- /dev/null
+++ b/src/common/nm_bts_fsm.c
@@ -0,0 +1,152 @@
+/* NM BTS FSM */
+
+/* (C) 2020 by sysmocom - s.m.f.c. GmbH <info@sysmocom.de>
+ * Author: Pau Espin Pedrol <pespin@sysmocom.de>
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 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 Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <errno.h>
+#include <unistd.h>
+#include <inttypes.h>
+
+#include <osmocom/core/fsm.h>
+#include <osmocom/core/tdef.h>
+#include <osmocom/gsm/protocol/gsm_12_21.h>
+
+#include <osmo-bts/logging.h>
+#include <osmo-bts/gsm_data.h>
+#include <osmo-bts/bts_model.h>
+#include <osmo-bts/bts.h>
+#include <osmo-bts/rsl.h>
+#include <osmo-bts/nm_bts_fsm.h>
+#include <osmo-bts/phy_link.h>
+
+#define X(s) (1 << (s))
+
+#define nm_bts_fsm_state_chg(fi, NEXT_STATE) \
+	osmo_fsm_inst_state_chg(fi, NEXT_STATE, 0, 0)
+
+//////////////////////////
+// FSM STATE ACTIONS
+//////////////////////////
+
+static void st_op_disabled_notinstalled_on_enter(struct osmo_fsm_inst *fi, uint32_t prev_state)
+{
+	struct gsm_bts *bts = (struct gsm_bts *)fi->priv;
+	bts->nm.opstart_success = false;
+	oml_mo_state_chg(&bts->nm.mo, NM_OPSTATE_DISABLED, NM_AVSTATE_NOT_INSTALLED);
+}
+
+static void st_op_disabled_notinstalled(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+	struct gsm_bts *bts = (struct gsm_bts *)fi->priv;
+
+	switch (event) {
+	case NM_BTS_EV_SW_ACT:
+		oml_mo_tx_sw_act_rep(&bts->nm.mo);
+		nm_bts_fsm_state_chg(fi, NM_BTS_ST_OP_DISABLED_OFFLINE);
+		return;
+	default:
+		OSMO_ASSERT(0);
+	}
+}
+
+static void st_op_disabled_offline_on_enter(struct osmo_fsm_inst *fi, uint32_t prev_state)
+{
+	struct gsm_bts *bts = (struct gsm_bts *)fi->priv;
+	bts->nm.opstart_success = false;
+	oml_mo_state_chg(&bts->nm.mo, NM_OPSTATE_DISABLED, NM_AVSTATE_OFF_LINE);
+}
+
+static void st_op_disabled_offline(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+	struct gsm_bts *bts = (struct gsm_bts *)fi->priv;
+
+	switch (event) {
+	case NM_BTS_EV_OPSTART_ACK:
+		bts->nm.opstart_success = true;
+		oml_mo_opstart_ack(&bts->nm.mo);
+		nm_bts_fsm_state_chg(fi, NM_BTS_ST_OP_ENABLED);
+		break; /* check statechg below */
+	case NM_BTS_EV_OPSTART_NACK:
+		bts->nm.opstart_success = false;
+		oml_mo_opstart_nack(&bts->nm.mo, (int)(intptr_t)data);
+		return;
+	default:
+		OSMO_ASSERT(0);
+	}
+}
+
+static void st_op_enabled_on_enter(struct osmo_fsm_inst *fi, uint32_t prev_state)
+{
+	struct gsm_bts *bts = (struct gsm_bts *)fi->priv;
+	oml_mo_state_chg(&bts->nm.mo, NM_OPSTATE_ENABLED, NM_AVSTATE_OK);
+}
+
+static void st_op_enabled(struct osmo_fsm_inst *fi, uint32_t event, void *data)
+{
+}
+
+static struct osmo_fsm_state nm_bts_fsm_states[] = {
+	[NM_BTS_ST_OP_DISABLED_NOTINSTALLED] = {
+		.in_event_mask =
+			X(NM_BTS_EV_SW_ACT),
+		.out_state_mask =
+			X(NM_BTS_ST_OP_DISABLED_OFFLINE),
+		.name = "DISABLED_NOTINSTALLED",
+		.onenter = st_op_disabled_notinstalled_on_enter,
+		.action = st_op_disabled_notinstalled,
+	},
+	[NM_BTS_ST_OP_DISABLED_OFFLINE] = {
+		.in_event_mask =
+			X(NM_BTS_EV_OPSTART_ACK) |
+			X(NM_BTS_EV_OPSTART_NACK),
+		.out_state_mask =
+			X(NM_BTS_ST_OP_ENABLED),
+		.name = "DISABLED_OFFLINE",
+		.onenter = st_op_disabled_offline_on_enter,
+		.action = st_op_disabled_offline,
+	},
+	[NM_BTS_ST_OP_ENABLED] = {
+		.in_event_mask = 0,
+		.out_state_mask = 0,
+		.name = "ENABLED",
+		.onenter = st_op_enabled_on_enter,
+		.action = st_op_enabled,
+	},
+};
+
+const struct value_string nm_bts_fsm_event_names[] = {
+	{ NM_BTS_EV_SW_ACT, "SW_ACT" },
+	{ NM_BTS_EV_OPSTART_ACK, "OPSTART_ACK" },
+	{ NM_BTS_EV_OPSTART_NACK, "OPSTART_NACK" },
+	{ 0, NULL }
+};
+
+struct osmo_fsm nm_bts_fsm = {
+	.name = "NM_BTS_OP",
+	.states = nm_bts_fsm_states,
+	.num_states = ARRAY_SIZE(nm_bts_fsm_states),
+	.event_names = nm_bts_fsm_event_names,
+	.log_subsys = DOML,
+};
+
+static __attribute__((constructor)) void nm_bts_fsm_init(void)
+{
+	OSMO_ASSERT(osmo_fsm_register(&nm_bts_fsm) == 0);
+}