Add Set parameter in M78 Statistics gcode

Firmware/ConfigurationStore.cpp

@@ -106,6 +106,9 @@ void Config_PrintSettings(uint8_t level)
 #ifdef THERMAL_MODEL
     thermal_model_report_settings();
 #endif
+		printf_P(PSTR(
+        "%SStatistics:\n%S  M78 S%lu T%lu\n"),
+        echomagic, echomagic, eeprom_read_dword((uint32_t *)EEPROM_FILAMENTUSED), eeprom_read_dword((uint32_t *)EEPROM_TOTALTIME));
 }
 #endif
 

Firmware/Marlin_main.cpp

@@ -5241,16 +5241,41 @@ void process_commands()
     }
 
     /*!
-    ### M78 - Show statistical information about the print jobs <a href="https://reprap.org/wiki/G-code#M78:_Show_statistical_information_about_the_print_jobs">M78: Show statistical information about the print jobs</a>
+    ### M78 - Get/set statistics <a href="https://reprap.org/wiki/G-code#M78:_Show_statistical_information_about_the_print_jobs">M78: Show statistical information about the print jobs</a>
+
+    #### Usage
+
+        M78 [ S | T ]
+
+    #### Parameters
+    - `S` - Set used filament length in cm
+    - `T` - Set total print time in minutes
     */
     case 78:
     {
-        // @todo useful for maintenance notifications
-        SERIAL_ECHOPGM("STATS ");
-        SERIAL_ECHO(eeprom_read_dword((uint32_t *)EEPROM_TOTALTIME));
-        SERIAL_ECHOPGM(" min ");
-        SERIAL_ECHO(eeprom_read_dword((uint32_t *)EEPROM_FILAMENTUSED));
-        SERIAL_ECHOLNPGM(" cm.");
+        const char *_m_fil;
+        const char *_m_time;
+        uint32_t _cm = 0;
+        uint32_t _min = 0;
+
+        if (printJobOngoing()) {
+          _m_fil = _O(MSG_FILAMENT_USED);
+          _m_time = _O(MSG_PRINT_TIME);
+          _cm = (uint32_t)total_filament_used / 1000;
+          _min = print_job_timer.duration() / 60;
+        } else {
+          if (code_seen('S')) {
+          eeprom_update_dword_notify((uint32_t *)EEPROM_FILAMENTUSED, code_value());
+          }
+          if (code_seen('T')) {
+          eeprom_update_dword_notify((uint32_t *)EEPROM_TOTALTIME, code_value());
+          }
+          _m_fil = _O(MSG_TOTAL_FILAMENT);
+          _m_time = _O(MSG_TOTAL_PRINT_TIME);
+          _cm = eeprom_read_dword((uint32_t *)EEPROM_FILAMENTUSED);
+          _min = eeprom_read_dword((uint32_t *)EEPROM_TOTALTIME);
+        }
+        printf_P(_N("%S:%lu cm\n%S:%lu min\n"),_m_fil,_cm,_m_time,_min);
         break;
     }
 
@@ -9153,7 +9178,7 @@ void setPwmFrequency(uint8_t pin, int val)
 #endif //FAST_PWM_FAN
 
 void save_statistics() {
-    uint32_t _previous_filament = eeprom_init_default_dword((uint32_t *)EEPROM_FILAMENTUSED, 0); //_previous_filament unit: meter
+    uint32_t _previous_filament = eeprom_init_default_dword((uint32_t *)EEPROM_FILAMENTUSED, 0); //_previous_filament unit: centimeter
     uint32_t _previous_time = eeprom_init_default_dword((uint32_t *)EEPROM_TOTALTIME, 0);        //_previous_time unit: min
 
     uint32_t time_minutes = print_job_timer.duration() / 60;

Firmware/eeprom.h

@@ -108,7 +108,7 @@ static_assert(sizeof(Sheets) == EEPROM_SHEETS_SIZEOF, "Sizeof(Sheets) is not EEP
 | ^           | ^       | ^                                     | fah 250      | ^                     | needs XYZ calibration                             | ^            | ^
 | ^           | ^       | ^                                     | 00h 0        | ^                     | Unknown (legacy)                                  | ^            | ^
 | 0x0FF5 4085 | uint16  | _EEPROM_FREE_NR12_                    | ???          | ff ffh 65535          | _Free EEPROM space_                               | _free space_ | D3 Ax0ff5 C2
-| 0x0FF1 4081 | uint32  | EEPROM_FILAMENTUSED                   | ???          | 00 00 00 00h 0 __S/P__| Filament used in meters                           | ???          | D3 Ax0ff1 C4
+| 0x0FF1 4081 | uint32  | EEPROM_FILAMENTUSED                   | ???          | 00 00 00 00h 0 __S/P__| Filament used in cenitmeters                      | ???          | D3 Ax0ff1 C4
 | 0x0FED 4077 | uint32  | EEPROM_TOTALTIME                      | ???          | 00 00 00 00h 0 __S/P__| Total print time in minutes                       | ???          | D3 Ax0fed C4
 | 0x0FE5 4069 | float   | EEPROM_BED_CALIBRATION_CENTER         | ???          | ff ff ff ffh          | ???                                               | ???          | D3 Ax0fe5 C8
 | 0x0FDD 4061 | float   | EEPROM_BED_CALIBRATION_VEC_X          | ???          | ff ff ff ffh          | ???                                               | ???          | D3 Ax0fdd C8

Firmware/ultralcd.cpp

@@ -2367,7 +2367,7 @@ void lcd_menu_statistics()
 	}
 	else
 	{
-		uint32_t _filament = eeprom_read_dword((uint32_t *)EEPROM_FILAMENTUSED); // in meters
+		uint32_t _filament = eeprom_read_dword((uint32_t *)EEPROM_FILAMENTUSED); // in centimeters
 		uint32_t _time = eeprom_read_dword((uint32_t *)EEPROM_TOTALTIME); // in minutes
 		uint8_t _hours, _minutes;
 		uint32_t _days;