1 files changed, 111 insertions, 0 deletions
diff --git a/Marlin/src/module/settings.h b/Marlin/src/module/settings.h
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+++ b/Marlin/src/module/settings.h
@@ -0,0 +1,111 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+//
+// settings.cpp - Settings and EEPROM storage
+//
+
+#include "../inc/MarlinConfig.h"
+
+#if ENABLED(EEPROM_SETTINGS)
+  #include "../HAL/shared/eeprom_api.h"
+#endif
+
+class MarlinSettings {
+  public:
+    static uint16_t datasize();
+
+    static void reset();
+    static bool save();    // Return 'true' if data was saved
+
+    FORCE_INLINE static bool init_eeprom() {
+      reset();
+      #if ENABLED(EEPROM_SETTINGS)
+        const bool success = save();
+        if (TERN0(EEPROM_CHITCHAT, success)) report();
+        return success;
+      #else
+        return true;
+      #endif
+    }
+
+    #if ENABLED(SD_FIRMWARE_UPDATE)
+      static bool sd_update_status();                       // True if the SD-Firmware-Update EEPROM flag is set
+      static bool set_sd_update_status(const bool enable);  // Return 'true' after EEPROM is set (-> always true)
+    #endif
+
+    #if ENABLED(EEPROM_SETTINGS)
+
+      static bool load();      // Return 'true' if data was loaded ok
+      static bool validate();  // Return 'true' if EEPROM data is ok
+
+      static inline void first_load() {
+        static bool loaded = false;
+        if (!loaded && load()) loaded = true;
+      }
+
+      #if ENABLED(AUTO_BED_LEVELING_UBL) // Eventually make these available if any leveling system
+                                         // That can store is enabled
+        static uint16_t meshes_start_index();
+        FORCE_INLINE static uint16_t meshes_end_index() { return meshes_end; }
+        static uint16_t calc_num_meshes();
+        static int mesh_slot_offset(const int8_t slot);
+        static void store_mesh(const int8_t slot);
+        static void load_mesh(const int8_t slot, void * const into=nullptr);
+
+        //static void delete_mesh();    // necessary if we have a MAT
+        //static void defrag_meshes();  // "
+      #endif
+    #else
+      FORCE_INLINE
+      static bool load() { reset(); report(); return true; }
+      FORCE_INLINE
+      static void first_load() { (void)load(); }
+    #endif
+
+    #if DISABLED(DISABLE_M503)
+      static void report(const bool forReplay=false);
+    #else
+      FORCE_INLINE
+      static void report(const bool=false) {}
+    #endif
+
+  private:
+    static void postprocess();
+
+    #if ENABLED(EEPROM_SETTINGS)
+
+      static bool eeprom_error, validating;
+
+      #if ENABLED(AUTO_BED_LEVELING_UBL)  // Eventually make these available if any leveling system
+                                          // That can store is enabled
+        static const uint16_t meshes_end; // 128 is a placeholder for the size of the MAT; the MAT will always
+                                          // live at the very end of the eeprom
+      #endif
+
+      static bool _load();
+      static bool size_error(const uint16_t size);
+    #endif
+};
+
+extern MarlinSettings settings;