ZoneStar Z6FB (#18918)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/inc/Conditionals_LCD.h

@@ -62,6 +62,19 @@
   #define ENCODER_STEPS_PER_MENU_ITEM 1
   #define ENCODER_FEEDRATE_DEADZONE 2
 
+#elif ENABLED(ZONESTAR_12864LCD)
+  #define DOGLCD
+  #define IS_RRD_SC
+  #define U8GLIB_ST7920
+
+#elif ENABLED(ZONESTAR_12864OLED)
+  #define IS_RRD_SC
+  #define U8GLIB_SH1106
+
+#elif ENABLED(ZONESTAR_12864OLED_SSD1306)
+  #define IS_RRD_SC
+  #define IS_U8GLIB_SSD1306
+
 #elif ENABLED(RADDS_DISPLAY)
   #define IS_ULTIPANEL
   #define ENCODER_PULSES_PER_STEP 2

Marlin/src/inc/Conditionals_post.h

@@ -312,6 +312,10 @@
   #define _LCD_CONTRAST_INIT  17
 #elif ENABLED(MINIPANEL)
   #define _LCD_CONTRAST_INIT  150
+#elif ENABLED(ZONESTAR_12864OLED)
+  #define _LCD_CONTRAST_MIN   64
+  #define _LCD_CONTRAST_INIT 128
+  #define _LCD_CONTRAST_MAX  255
 #endif
 
 #ifdef _LCD_CONTRAST_INIT

Marlin/src/inc/SanityCheck.h

@@ -2227,6 +2227,9 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
   + ENABLED(OLED_PANEL_TINYBOY2) \
   + ENABLED(MKS_12864OLED) \
   + ENABLED(MKS_12864OLED_SSD1306) \
+  + ENABLED(ZONESTAR_12864LCD) \
+  + ENABLED(ZONESTAR_12864OLED) \
+  + ENABLED(ZONESTAR_12864OLED_SSD1306) \
   + ENABLED(U8GLIB_SH1106_EINSTART) \
   + ENABLED(OVERLORD_OLED) \
   + ENABLED(FYSETC_242_OLED_12864) \
@@ -2242,7 +2245,7 @@ static_assert(hbm[Z_AXIS] >= 0, "HOMING_BUMP_MM.Z must be greater than or equal
   + ENABLED(TFT_LVGL_UI_SPI) \
   + ENABLED(ANYCUBIC_LCD_I3MEGA) \
   + ENABLED(ANYCUBIC_LCD_CHIRON)
-  #error "Please select no more than one LCD controller option."
+  #error "Please select only one LCD controller option."
 #endif
 
 #undef IS_RRD_SC