layer23/mobile: Adding user interface to mobile application

Enable it in the VTY:

en
conf t
ms 1
user-interface
telnet-port 4248
write

It will show a status screen. Different items to display in the status
screen can be enabled/disabled via configuration.

Dialing and handling of one or multiple calls are possible.

This interface is not complete.

5 files changed, 60 insertions, 2 deletions

diff --git a/src/host/layer23/include/osmocom/bb/common/osmocom_data.h b/src/host/layer23/include/osmocom/bb/common/osmocom_data.h
index d42cf09b..191fb96d 100644
--- a/src/host/layer23/include/osmocom/bb/common/osmocom_data.h
+++ b/src/host/layer23/include/osmocom/bb/common/osmocom_data.h
@@ -19,6 +19,7 @@ struct osmocom_ms;
 #include <osmocom/bb/mobile/gsm48_mm.h>
 #include <osmocom/bb/mobile/gsm48_cc.h>
 #include <osmocom/bb/mobile/mncc_sock.h>
+#include <osmocom/bb/mobile/gui.h>
 #include <osmocom/bb/common/sim.h>
 #include <osmocom/bb/common/l1ctl.h>
 
@@ -78,6 +79,7 @@ struct osmocom_ms {
 	struct gsm48_cclayer cclayer;
 	struct osmomncc_entity mncc_entity;
 	struct llist_head trans_list;
+	struct gsm_ui gui;
 };
 
 enum osmobb_sig_subsys {
diff --git a/src/host/layer23/include/osmocom/bb/mobile/Makefile.am b/src/host/layer23/include/osmocom/bb/mobile/Makefile.am
index 6adb6991..38a5b4e6 100644
--- a/src/host/layer23/include/osmocom/bb/mobile/Makefile.am
+++ b/src/host/layer23/include/osmocom/bb/mobile/Makefile.am
@@ -1,3 +1,3 @@
 noinst_HEADERS = gsm322.h gsm480_ss.h gsm411_sms.h gsm48_cc.h gsm48_mm.h \
 		 gsm48_rr.h mncc.h settings.h subscriber.h support.h \
-		 transaction.h vty.h mncc_sock.h mnccms.h
+		 transaction.h vty.h mncc_sock.h mnccms.h gui.h
diff --git a/src/host/layer23/include/osmocom/bb/mobile/gui.h b/src/host/layer23/include/osmocom/bb/mobile/gui.h
new file mode 100644
index 00000000..a67044d8
--- /dev/null
+++ b/src/host/layer23/include/osmocom/bb/mobile/gui.h
@@ -0,0 +1,50 @@
+#ifndef _gui_h
+#define _gui_h
+
+#include <osmocom/bb/ui/ui.h>
+
+struct status_screen {
+	const char		*feature;
+	const char		*feature_vty;
+	const char		*feature_help;
+	int			default_en;
+	int			lines;
+	int	 		(*display_func)(struct osmocom_ms *ms,
+								char *text);
+};
+
+extern struct status_screen status_screen[];
+
+#define GUI_NUM_STATUS	9	/* number of status infos */
+#define GUI_NUM_STATUS_LINES 32	/* total number of lines of all status infos */
+
+struct gsm_ui {
+	struct ui_inst ui;	/* user interface instance */
+	int menu;		/* current menu */
+	const char *status_lines[GUI_NUM_STATUS_LINES];
+				/* list of status lines */
+	char status_text[GUI_NUM_STATUS_LINES * (UI_COLS + 1) + 128];
+				/* memory for status lines (extra 128 bytes
+				 * in case of overflow */
+	struct osmo_timer_list timer;
+				/* refresh timer */
+	char dialing[33];	/* dailing buffer */
+	int selected_call;	/* call that is selected */
+
+	/* select menus */
+	void *select_menu;	/* current menu */
+	void *choose_menu;	/* current choose item in menu */
+
+	/* supserv */
+	int ss_lines;		/* number of lines we display */
+	int ss_pending, ss_active;
+				/* state of transaction */
+};
+
+void gui_init_status_config(void);
+int gui_start(struct osmocom_ms *ms);
+int gui_stop(struct osmocom_ms *ms);
+int gui_notify_call(struct osmocom_ms *ms);
+int gui_notify_ss(struct osmocom_ms *ms, const char *fmt, ...);
+
+#endif /* _gui_h */
diff --git a/src/host/layer23/include/osmocom/bb/mobile/settings.h b/src/host/layer23/include/osmocom/bb/mobile/settings.h
index 37f87873..b5f25e83 100644
--- a/src/host/layer23/include/osmocom/bb/mobile/settings.h
+++ b/src/host/layer23/include/osmocom/bb/mobile/settings.h
@@ -104,6 +104,10 @@ struct gsm_settings {
 
 	/* Ring tone */
 	uint8_t			ringtone; /* 0 = off */
+
+	/* UI */
+	uint16_t		ui_port; /* telnet port: 0, if disabled */
+	uint32_t		status_enable; /* status display flags */
 };
 
 struct gsm_settings_abbrev {
diff --git a/src/host/layer23/include/osmocom/bb/mobile/vty.h b/src/host/layer23/include/osmocom/bb/mobile/vty.h
index 1f1341bc..d59853fd 100644
--- a/src/host/layer23/include/osmocom/bb/mobile/vty.h
+++ b/src/host/layer23/include/osmocom/bb/mobile/vty.h
@@ -10,10 +10,12 @@ enum ms_vty_node {
 	MS_NODE = _LAST_OSMOVTY_NODE + 1,
 	TESTSIM_NODE,
 	SUPPORT_NODE,
+	UI_NODE,
 };
 
 enum node_type ms_vty_go_parent(struct vty *vty);
-int ms_vty_init(void);
+int ms_vty_init(void *tall_ctx);
+void ms_vty_exit(void);
 extern void vty_notify(struct osmocom_ms *ms, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
 
 #endif