Report sd card progress [FR] #9751 (#9832)

* SD Status auto-report feature
Feature Request #9751

Marlin/src/gcode/gcode.h

@@ -85,7 +85,7 @@
  * M24  - Start/resume SD print. (Requires SDSUPPORT)
  * M25  - Pause SD print. (Requires SDSUPPORT)
  * M26  - Set SD position in bytes: "M26 S12345". (Requires SDSUPPORT)
- * M27  - Report SD print status. (Requires SDSUPPORT)
+ * M27  - Report SD print status. (Requires SDSUPPORT) With 'S<seconds>' sets the SD status auto-report interval. (Requires AUTO_REPORT_SD_STATUS)
  * M28  - Start SD write: "M28 /path/file.gco". (Requires SDSUPPORT)
  * M29  - Stop SD write. (Requires SDSUPPORT)
  * M30  - Delete file from SD: "M30 /path/file.gco"

Marlin/src/gcode/host/M115.cpp

@@ -139,5 +139,12 @@ void GcodeSuite::M115() {
       #endif
     );
 
+    // AUTOREPORT_SD_STATUS (M27 extension)
+    cap_line(PSTR("AUTOREPORT_SD_STATUS")
+      #if ENABLED(AUTO_REPORT_SD_STATUS)
+        , true
+      #endif
+    );
+
   #endif // EXTENDED_CAPABILITIES_REPORT
 }

Marlin/src/gcode/sdcard/M20-M30_M32-M34_M928.cpp

@@ -115,6 +115,14 @@ void GcodeSuite::M27() {
       command_queue_port[cmd_queue_index_r]
     #endif
   );
+  #if ENABLED(AUTO_REPORT_SD_STATUS)
+  if (parser.seenval('S'))
+    card.set_auto_report_interval(parser.value_byte()
+      #if NUM_SERIAL > 1
+        , command_queue_port[cmd_queue_index_r]
+      #endif
+    );
+  #endif
 }
 
 /**