SD card menu enhancement

Firmware/messages.c

@@ -52,6 +52,7 @@ const char MSG_LOAD_FILAMENT[] PROGMEM_I1 = ISTR("Load filament"); ////c=17 r=0
 const char MSG_LOADING_FILAMENT[] PROGMEM_I1 = ISTR("Loading filament"); ////c=20 r=0
 const char MSG_M117_V2_CALIBRATION[] PROGMEM_I1 = ISTR("M117 First layer cal."); ////c=25 r=1
 const char MSG_MAIN[] PROGMEM_I1 = ISTR("Main"); ////c=0 r=0
+const char MSG_BACK[] PROGMEM_I1 = ISTR("Back"); ////c=0 r=0
 const char MSG_MEASURE_BED_REFERENCE_HEIGHT_LINE1[] PROGMEM_I1 = ISTR("Measuring reference height of calibration point"); ////c=60 r=0
 const char MSG_MEASURE_BED_REFERENCE_HEIGHT_LINE2[] PROGMEM_I1 = ISTR(" of 9"); ////c=14 r=0
 const char MSG_MENU_CALIBRATION[] PROGMEM_I1 = ISTR("Calibration"); ////c=0 r=0

Firmware/messages.h

@@ -53,6 +53,7 @@ extern const char MSG_LOAD_FILAMENT[];
 extern const char MSG_LOADING_FILAMENT[];
 extern const char MSG_M117_V2_CALIBRATION[];
 extern const char MSG_MAIN[];
+extern const char MSG_BACK[];
 extern const char MSG_MEASURE_BED_REFERENCE_HEIGHT_LINE1[];
 extern const char MSG_MEASURE_BED_REFERENCE_HEIGHT_LINE2[];
 extern const char MSG_MENU_CALIBRATION[];

Firmware/ultralcd.cpp

@@ -5292,9 +5292,9 @@ do\
         EEPROM_read(EEPROM_SD_SORT, (uint8_t*)&sdSort, sizeof(sdSort));\
         switch (sdSort)\
         {\
-          case SD_SORT_TIME: MENU_ITEM_FUNCTION_P(_i("Sort:      [time]"), lcd_sort_type_set); break;/*////MSG_SORT_TIME c=17 r=1*/\
-          case SD_SORT_ALPHA: MENU_ITEM_FUNCTION_P(_i("Sort:  [alphabet]"), lcd_sort_type_set); break;/*////MSG_SORT_ALPHA c=17 r=1*/\
-          default: MENU_ITEM_FUNCTION_P(_i("Sort:      [none]"), lcd_sort_type_set);/*////MSG_SORT_NONE c=17 r=1*/\
+          case SD_SORT_TIME: MENU_ITEM_FUNCTION_P(_i("Sort       [time]"), lcd_sort_type_set); break;/*////MSG_SORT_TIME c=17 r=1*/\
+          case SD_SORT_ALPHA: MENU_ITEM_FUNCTION_P(_i("Sort   [alphabet]"), lcd_sort_type_set); break;/*////MSG_SORT_ALPHA c=17 r=1*/\
+          default: MENU_ITEM_FUNCTION_P(_i("Sort       [none]"), lcd_sort_type_set);/*////MSG_SORT_NONE c=17 r=1*/\
         }\
     }\
 }\
@@ -6725,10 +6725,7 @@ void lcd_sdcard_menu()
 
 
   MENU_BEGIN();
-  if(bMain)                                       // i.e. default menu-item
-    MENU_ITEM_BACK_P(_T(MSG_MAIN));
-  else                                            // i.e. menu-item after card insertion
-    MENU_ITEM_FUNCTION_P(_T(MSG_WATCH),lcd_return_to_status);
+  MENU_ITEM_BACK_P(_T(bMain?MSG_MAIN:MSG_BACK));  // i.e. default menu-item / menu-item after card insertion
   card.getWorkDirName();
   if (card.filename[0] == '/')
   {
@@ -8148,6 +8145,8 @@ void menu_lcd_lcdupdate_func(void)
 		}
 		else
 		{
+               if(menu_menu==lcd_sdcard_menu)
+                    menu_back();
 			card.release();
 			LCD_MESSAGERPGM(_i("Card removed"));////MSG_SD_REMOVED c=0 r=0
 		}
@@ -8192,4 +8191,3 @@ void menu_lcd_lcdupdate_func(void)
 	lcd_send_status();
 	if (lcd_commands_type == LCD_COMMAND_V2_CAL) lcd_commands();
 }
-