From 7d43b4130c961649a9446076b8513a64725609d4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mario=20H=C3=BCttel?= <mario.huettel@gmx.net>
Date: Thu, 9 Jun 2022 18:18:30 +0200
Subject: [PATCH] Add connector info to LCD GUI. So TX and RX of UART can be
 found without looking at the schematic.

---
 stm-firmware/ui/gui.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/stm-firmware/ui/gui.c b/stm-firmware/ui/gui.c
index df65ba9..608e46a 100644
--- a/stm-firmware/ui/gui.c
+++ b/stm-firmware/ui/gui.c
@@ -691,6 +691,37 @@ static void gui_update_firmware(struct lcd_menu *menu, enum menu_entry_func_entr
 	}
 }
 
+static void gui_connector_info(struct lcd_menu *menu, enum menu_entry_func_entry entry_type, void *parent)
+{
+	static void *my_parent;
+	enum button_state button;
+
+	if (entry_type == MENU_ENTRY_FIRST_ENTER) {
+		my_parent = parent;
+		menu_display_clear(menu);
+
+		menu_lcd_output(menu, 0, "2,4: DIGIO[0,1]");
+		menu_lcd_output(menu, 1, "6: DIGIO2 (TX)");
+		menu_lcd_output(menu, 2, "8: DIGIO3 (RX)");
+		menu_lcd_output(menu, 3, "10:3V3 Rest:GND");
+	}
+
+	if (menu_get_button_ready_state(menu)) {
+		/* Buttons are ready. Read button */
+		button = menu_get_button_state(menu);
+		/* Throw away any rotation */
+		(void)menu_get_rotary_delta(menu);
+
+		if (button == BUTTON_SHORT_RELEASED || button == BUTTON_LONG ||
+				button == BUTTON_LONG_RELEASED) {
+			/* Exit menu */
+			menu_entry_dropback(menu, my_parent);
+		}
+	}
+
+
+}
+
 static char *overlay_heading = NULL;
 static char *overlay_text = NULL;
 
@@ -740,6 +771,7 @@ static void gui_menu_root_entry(struct lcd_menu *menu, enum menu_entry_func_entr
 		"Error Flags",
 		"About",
 		"Update",
+		"Connector Info",
 		NULL
 	};
 	static const menu_func_t root_entry_funcs[] = {
@@ -749,6 +781,7 @@ static void gui_menu_root_entry(struct lcd_menu *menu, enum menu_entry_func_entr
 		gui_menu_err_flags,
 		gui_menu_about,
 		gui_update_firmware,
+		gui_connector_info,
 	};
 	enum button_state push_button;
 	int16_t rot_delta;