Move MBL functions into the class

Marlin/Marlin.h

@@ -383,6 +383,11 @@ void report_current_position();
   float bilinear_z_offset(const float raw[XYZ]);
 #endif
 
+#if ENABLED(AUTO_BED_LEVELING_BILINEAR) || ENABLED(MESH_BED_LEVELING)
+  typedef float (*element_2d_fn)(const uint8_t, const uint8_t);
+  void print_2d_array(const uint8_t sx, const uint8_t sy, const uint8_t precision, const element_2d_fn fn);
+#endif
+
 #if ENABLED(AUTO_BED_LEVELING_UBL)
   typedef struct { double A, B, D; } linear_fit;
   linear_fit* lsf_linear_fit(double x[], double y[], double z[], const int);

Marlin/Marlin_main.cpp

@@ -2537,7 +2537,7 @@ static void clean_up_after_endstop_or_probe_move() {
   /**
    * Print calibration results for plotting or manual frame adjustment.
    */
-  static void print_2d_array(const uint8_t sx, const uint8_t sy, const uint8_t precision, float (*fn)(const uint8_t, const uint8_t)) {
+  void print_2d_array(const uint8_t sx, const uint8_t sy, const uint8_t precision, const element_2d_fn fn) {
     #ifndef SCAD_MESH_OUTPUT
       for (uint8_t x = 0; x < sx; x++) {
         for (uint8_t i = 0; i < precision + 2 + (x < 10 ? 1 : 0); i++)
@@ -4089,15 +4089,6 @@ void home_all_axes() { gcode_G28(true); }
   // Save 130 bytes with non-duplication of PSTR
   void echo_not_entered() { SERIAL_PROTOCOLLNPGM(" not entered."); }
 
-  void mbl_mesh_report() {
-    SERIAL_PROTOCOLLNPGM("Num X,Y: " STRINGIFY(GRID_MAX_POINTS_X) "," STRINGIFY(GRID_MAX_POINTS_Y));
-    SERIAL_PROTOCOLPGM("Z offset: "); SERIAL_PROTOCOL_F(mbl.z_offset, 5);
-    SERIAL_PROTOCOLLNPGM("\nMeasured points:");
-    print_2d_array(GRID_MAX_POINTS_X, GRID_MAX_POINTS_Y, 5,
-      [](const uint8_t ix, const uint8_t iy) { return mbl.z_values[ix][iy]; }
-    );
-  }
-
   /**
    * G29: Mesh-based Z probe, probes a grid and produces a
    *      mesh to compensate for variable bed height
@@ -4138,7 +4129,7 @@ void home_all_axes() { gcode_G28(true); }
       case MeshReport:
         if (leveling_is_valid()) {
           SERIAL_PROTOCOLLNPAIR("State: ", planner.leveling_active ? MSG_ON : MSG_OFF);
-          mbl_mesh_report();
+          mbl.report_mesh();
         }
         else
           SERIAL_PROTOCOLLNPGM("Mesh bed leveling has no data.");
@@ -9630,7 +9621,7 @@ void quickstop_stepper() {
             #endif
           #elif ENABLED(MESH_BED_LEVELING)
             SERIAL_ECHOLNPGM("Mesh Bed Level data:");
-            mbl_mesh_report();
+            mbl.report_mesh();
           #endif
         }
       #endif

Marlin/mesh_bed_leveling.cpp

@@ -25,6 +25,8 @@
 #if ENABLED(MESH_BED_LEVELING)
 
   #include "mesh_bed_leveling.h"
+  #include "Marlin.h"
+  #include "serial.h"
 
   mesh_bed_leveling mbl;
 
@@ -49,4 +51,13 @@
     ZERO(z_values);
   }
 
+  void mesh_bed_leveling::report_mesh() {
+    SERIAL_PROTOCOLLNPGM("Num X,Y: " STRINGIFY(GRID_MAX_POINTS_X) "," STRINGIFY(GRID_MAX_POINTS_Y));
+    SERIAL_PROTOCOLPGM("Z offset: "); SERIAL_PROTOCOL_F(z_offset, 5);
+    SERIAL_PROTOCOLLNPGM("\nMeasured points:");
+    print_2d_array(GRID_MAX_POINTS_X, GRID_MAX_POINTS_Y, 5,
+      [](const uint8_t ix, const uint8_t iy) { return z_values[ix][iy]; }
+    );
+  }
+
 #endif // MESH_BED_LEVELING

Marlin/mesh_bed_leveling.h

@@ -39,7 +39,6 @@ enum MeshLevelingState {
 
 class mesh_bed_leveling {
 public:
-  static bool has_mesh;
   static float z_offset,
                z_values[GRID_MAX_POINTS_X][GRID_MAX_POINTS_Y],
                index_to_xpos[GRID_MAX_POINTS_X],
@@ -47,8 +46,11 @@ public:
 
   mesh_bed_leveling();
 
+  static void report_mesh();
+
   static void reset();
 
+
   static void set_z(const int8_t px, const int8_t py, const float &z) { z_values[px][py] = z; }
 
   static inline void zigzag(const int8_t index, int8_t &px, int8_t &py) {