Merge pull request #9056 from thinkyhead/bf2_new_eeprom_powers

[2.0.x] New EEPROM powers

Marlin/src/HAL/HAL_AVR/persistent_store_impl.cpp

   return false;
 }
 
-bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
   do {
     uint8_t c = eeprom_read_byte((unsigned char*)pos);
-    *value = c;
+    if (writing) *value = c;
     crc16(crc, &c, 1);
     pos++;
     value++;

Marlin/src/HAL/HAL_DUE/persistent_store_impl.cpp

   return false;
 }
 
-bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
   do {
     uint8_t c = eeprom_read_byte((unsigned char*)pos);
-    *value = c;
+    if (writing) *value = c;
     crc16(crc, &c, 1);
     pos++;
     value++;

Marlin/src/HAL/HAL_LPC1768/persistent_store_impl.cpp

   return (bytes_written != size);  // return true for any error
 }
 
-bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
   UINT bytes_read = 0;
   FRESULT s;
   s = f_lseek(&eeprom_file, pos);
    SERIAL_PROTOCOLLNPAIR(" f_lseek()=", (int)s);
    return true;
   }
-  s = f_read(&eeprom_file, (void *)value, size, &bytes_read);
+  if (writing) {
+    s = f_read(&eeprom_file, (void *)value, size, &bytes_read);
+    crc16(crc, value, size);
+  }
+  else {
+    uint8_t temp[size];
+    s = f_read(&eeprom_file, (void *)temp, size, &bytes_read);
+    crc16(crc, temp, size);
+  }
   if (s) {
    SERIAL_PROTOCOLPAIR(" read_data(", pos);         // This extra chit-chat goes away soon.  But it is helpful
    SERIAL_PROTOCOLPAIR(",", (int)value);           // right now to see errors that are happening in the
    SERIAL_PROTOCOLLNPAIR("\n bytes_read=",  bytes_read);
    return true;
   }
-  crc16(crc, value, size);
   pos = pos + size;
   return bytes_read != size;  // return true for any error
 }

Marlin/src/HAL/HAL_STM32F1/persistent_store_flash.cpp

   return true;
 }
 
-void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
   for (uint16_t i = 0; i < size; i++) {
     byte* accessPoint = (byte*)(pageBase + pos + i);
-    value[i] = *accessPoint;
+    uint8_t c = *accessPoint;
+    if (writing) value[i] = c;
+    crc16(crc, &c, 1);
   }
-
-  crc16(crc, value, size);
   pos += ((size + 1) & ~1);
 }
 

Marlin/src/HAL/HAL_STM32F1/persistent_store_impl.cpp

   return true;
 }
 
-
 bool access_finish(){
   if (!card.cardOK) return false;
   int16_t bytes_written = 0;
   return false;
 }
 
-bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
   for (int i = 0; i < size; i++) {
-    value[i] = HAL_STM32F1_eeprom_content [pos + i];
+    uint8_t c = HAL_STM32F1_eeprom_content[pos + i];
+    if (writing) value[i] = c`;
+    crc16(crc, &c, 1);
   }
-  crc16(crc, value, size);
   pos += size;
   return false;
 }

Marlin/src/HAL/HAL_TEENSY35_36/persistent_store_impl.cpp

   return false;
 }
 
-bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing/*=true*/) {
   do {
     uint8_t c = eeprom_read_byte((unsigned char*)pos);
-    *value = c;
+    if (writing) *value = c;
     crc16(crc, &c, 1);
     pos++;
     value++;

Marlin/src/HAL/persistent_store_api.h

 bool access_start();
 bool access_finish();
 bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc);
-bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc);
+bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc, const bool writing=true);
 
 } // PersistentStore
 } // HAL

Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp

 
   void unified_bed_leveling::G29() {
 
-    if (!settings.calc_num_meshes()) {
-      SERIAL_PROTOCOLLNPGM("?Enable EEPROM and init with");
-      SERIAL_PROTOCOLLNPGM("M502, M500, M501 in that order.\n");
-      return;
-    }
-
     if (g29_parameter_parsing()) return; // abort if parsing the simple parameters causes a problem,
 
     // Check for commands that require the printer to be homed
       SERIAL_EOL();
       safe_delay(50);
 
-      SERIAL_PROTOCOLPAIR("Meshes go from ", hex_address((void*)settings.get_start_of_meshes()));
-      SERIAL_PROTOCOLLNPAIR(" to ", hex_address((void*)settings.get_end_of_meshes()));
+      SERIAL_PROTOCOLPAIR("Meshes go from ", hex_address((void*)settings.meshes_start_index()));
+      SERIAL_PROTOCOLLNPAIR(" to ", hex_address((void*)settings.meshes_end_index()));
       safe_delay(50);
 
       SERIAL_PROTOCOLLNPAIR("sizeof(ubl) :  ", (int)sizeof(ubl));
       SERIAL_EOL();
       safe_delay(25);
 
-      SERIAL_PROTOCOLLNPAIR("EEPROM free for UBL: ", hex_address((void*)(settings.get_end_of_meshes() - settings.get_start_of_meshes())));
+      SERIAL_PROTOCOLLNPAIR("EEPROM free for UBL: ", hex_address((void*)(settings.meshes_end_index() - settings.meshes_start_index())));
       safe_delay(50);
 
       SERIAL_PROTOCOLPAIR("EEPROM can hold ", settings.calc_num_meshes());

Marlin/src/gcode/eeprom/M500-M503.cpp → Marlin/src/gcode/eeprom/M500-M504.cpp

   }
 
 #endif // !DISABLE_M503
+
+#if ENABLED(EEPROM_SETTINGS)
+  /**
+   * M504: Validate EEPROM Contents
+   */
+  void GcodeSuite::M504() {
+    if (settings.validate()) {
+      SERIAL_ECHO_START();
+      SERIAL_ECHOLNPGM("EEPROM OK");
+    }
+  }
+#endif

Marlin/src/gcode/gcode.cpp

       #if DISABLED(DISABLE_M503)
         case 503: M503(); break;  // M503: print settings currently in memory
       #endif
+      #if ENABLED(EEPROM_SETTINGS)
+        case 504: M504(); break;  // M504: Validate EEPROM contents
+      #endif
 
       #if ENABLED(ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
         case 540: M540(); break;  // M540: Set abort on endstop hit for SD printing

Marlin/src/gcode/gcode.h

     static WorkspacePlane workspace_plane;
   #endif
 
+  #define MAX_COORDINATE_SYSTEMS 9
   #if ENABLED(CNC_COORDINATE_SYSTEMS)
-    #define MAX_COORDINATE_SYSTEMS 9
     static int8_t active_coordinate_system;
     static float coordinate_system[MAX_COORDINATE_SYSTEMS][XYZ];
     static bool select_coordinate_system(const int8_t _new);
   #if DISABLED(DISABLE_M503)
     static void M503();
   #endif
+  #if ENABLED(EEPROM_SETTINGS)
+    static void M504();
+  #endif
 
   #if ENABLED(ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
     static void M540();

Marlin/src/lcd/ultralcd.cpp

       MENU_BACK(MSG_UBL_LEVEL_BED);
       if (!WITHIN(ubl_storage_slot, 0, a - 1)) {
         STATIC_ITEM(MSG_NO_STORAGE);
-        STATIC_ITEM(MSG_INIT_EEPROM);
       }
       else {
         MENU_ITEM_EDIT(int3, MSG_UBL_STORAGE_SLOT, &ubl_storage_slot, 0, a - 1);

Marlin/src/module/configuration_store.h

   public:
     MarlinSettings() { }
 
+    static uint16_t datasize();
+
     static void reset();
-    static bool save();
+    static bool save();   // Return 'true' if data was saved
 
     FORCE_INLINE static bool init_eeprom() {
       bool success = true;
       reset();
       #if ENABLED(EEPROM_SETTINGS)
-        if ((success = save())) {
-          #if ENABLED(AUTO_BED_LEVELING_UBL)
-            success = load(); // UBL uses load() to know the end of EEPROM
-          #elif ENABLED(EEPROM_CHITCHAT)
-            report();
-          #endif
-        }
+        success = save();
+        #if ENABLED(EEPROM_CHITCHAT)
+          if (success) report();
+        #endif
       #endif
       return success;
     }
 
     #if ENABLED(EEPROM_SETTINGS)
-      static bool load();
+      static bool load();     // Return 'true' if data was loaded ok
+      static bool validate(); // Return 'true' if EEPROM data is ok
 
       #if ENABLED(AUTO_BED_LEVELING_UBL) // Eventually make these available if any leveling system
                                          // That can store is enabled
-        FORCE_INLINE static int16_t get_start_of_meshes() { return meshes_begin; }
-        FORCE_INLINE static int16_t get_end_of_meshes() { return meshes_end; }
+        static int16_t meshes_start_index();
+        FORCE_INLINE static int16_t meshes_end_index() { return meshes_end; }
         static uint16_t calc_num_meshes();
         static void store_mesh(const int8_t slot);
         static void load_mesh(const int8_t slot, void * const into=NULL);
     static void postprocess();
 
     #if ENABLED(EEPROM_SETTINGS)
-      static bool eeprom_error;
+
+      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 int16_t meshes_begin;
         const static int16_t meshes_end = E2END - 128; // 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
 };