Add fast binary file transfer to SD card option (#12249)

Marlin/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/default/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/AlephObjects/TAZ4/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A2/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A2plus/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A6/Configuration_adv.h

@@ -740,6 +740,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Anet/A8/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/ArmEd/Configuration_adv.h

@@ -716,6 +716,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration_adv.h

@@ -740,6 +740,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BIBO/TouchX/default/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BQ/Hephestos/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BQ/Hephestos_2/Configuration_adv.h

@@ -749,6 +749,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/BQ/WITBOX/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Cartesio/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-10/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-10S/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-10mini/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/CR-8/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/Ender-2/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/Ender-3/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Creality/Ender-4/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Einstart-S/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Felix/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/FolgerTech/i3-2020/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Formbot/Raptor/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Formbot/T_Rex_2+/Configuration_adv.h

@@ -745,6 +745,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Formbot/T_Rex_3/Configuration_adv.h

@@ -746,6 +746,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Geeetech/MeCreator2/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Geeetech/Prusa i3 Pro C/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Geeetech/Prusa i3 Pro W/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Infitary/i3-M508/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/JGAurora/A5/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/MakerParts/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Malyan/M150/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Malyan/M200/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Micromake/C1/enhanced/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Mks/Sbase/Configuration_adv.h

@@ -742,6 +742,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/RigidBot/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/SCARA/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Sanguinololu/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/TheBorg/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/TinyBoy2/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Tronxy/X3A/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/UltiMachine/Archim2/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Velleman/K8200/Configuration_adv.h

@@ -754,6 +754,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Velleman/K8400/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/Wanhao/Duplicator 6/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/Anycubic/Kossel/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/FLSUN/auto_calibrate/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/FLSUN/kossel/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/FLSUN/kossel_mini/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/generic/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/kossel_mini/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/delta/kossel_xl/Configuration_adv.h

@@ -743,6 +743,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/gCreate/gMax1.5+/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/makibox/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/tvrrug/Round2/Configuration_adv.h

@@ -741,6 +741,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/config/examples/wt150/Configuration_adv.h

@@ -742,6 +742,9 @@
     #define SD_FIRMWARE_UPDATE_INACTIVE_VALUE 0xFF
   #endif
 
+  // Add an optimized binary file transfer mode, initiated with 'M28 B1'
+  //#define FAST_FILE_TRANSFER
+
 #endif // SDSUPPORT
 
 /**

Marlin/src/feature/emergency_parser.cpp

@@ -31,7 +31,8 @@
 #include "emergency_parser.h"
 
 // Static data members
-bool EmergencyParser::killed_by_M112; // = false
+bool EmergencyParser::killed_by_M112, // = false
+     EmergencyParser::enabled;
 
 // Global instance
 EmergencyParser emergency_parser;

Marlin/src/feature/emergency_parser.h

@@ -19,13 +19,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
  */
+#pragma once
 
 /**
  * emergency_parser.h - Intercept special commands directly in the serial stream
  */
 
-#ifndef _EMERGENCY_PARSER_H_
-#define _EMERGENCY_PARSER_H_
+#define FORCE_INLINE __attribute__((always_inline)) inline
 
 // External references
 extern volatile bool wait_for_user, wait_for_heatup;
@@ -53,11 +53,13 @@ public:
 
   static bool killed_by_M112;
 
-  EmergencyParser() {}
+  EmergencyParser() { enable(); }
 
-  __attribute__((always_inline)) inline
-  static void update(State &state, const uint8_t c) {
+  FORCE_INLINE static void enable()  { enabled = true; }
 
+  FORCE_INLINE static void disable() { enabled = false; }
+
+  FORCE_INLINE static void update(State &state, const uint8_t c) {
     switch (state) {
       case EP_RESET:
         switch (c) {
@@ -118,7 +120,7 @@ public:
 
       default:
         if (c == '\n') {
-          switch (state) {
+          if (enabled) switch (state) {
             case EP_M108:
               wait_for_user = wait_for_heatup = false;
               break;
@@ -136,8 +138,8 @@ public:
     }
   }
 
+private:
+  static bool enabled;
 };
 
 extern EmergencyParser emergency_parser;
-
-#endif // _EMERGENCY_PARSER_H_

Marlin/src/feature/fwretract.h

@@ -56,7 +56,7 @@ public:
   #if ENABLED(FWRETRACT_AUTORETRACT)
     static bool autoretract_enabled;               // M209 S - Autoretract switch
   #else
-    constexpr static bool autoretract_enabled = false;
+    static constexpr bool autoretract_enabled = false;
   #endif
 
   static bool retracted[EXTRUDERS];                // Which extruders are currently retracted

Marlin/src/gcode/queue.cpp

@@ -258,14 +258,15 @@ void gcode_line_error(PGM_P err, uint8_t port) {
 }
 
 static bool serial_data_available() {
-  return (MYSERIAL0.available() ? true :
+  return false
+    || MYSERIAL0.available()
     #if NUM_SERIAL > 1
-      MYSERIAL1.available() ? true :
+      || MYSERIAL1.available()
     #endif
-    false);
+  ;
 }
 
-static int read_serial(const int index) {
+static int read_serial(const uint8_t index) {
   switch (index) {
     case 0: return MYSERIAL0.read();
     #if NUM_SERIAL > 1
@@ -275,6 +276,263 @@ static int read_serial(const int index) {
   }
 }
 
+#if ENABLED(FAST_FILE_TRANSFER)
+
+  #if ENABLED(SDSUPPORT)
+    #define CARD_CHAR_P(C)   SERIAL_CHAR_P(card.transfer_port, C)
+    #define CARD_ECHO_P(V)   SERIAL_ECHO_P(card.transfer_port, V)
+    #define CARD_ECHOLN_P(V) SERIAL_ECHOLN_P(card.transfer_port, V)
+  #endif
+
+  static bool serial_data_available(const uint8_t index) {
+    switch (index) {
+      case 0: return MYSERIAL0.available();
+      #if NUM_SERIAL > 1
+        case 1: return MYSERIAL1.available();
+      #endif
+      default: return false;
+    }
+  }
+
+  class BinaryStream {
+  public:
+    enum class StreamState : uint8_t {
+      STREAM_RESET,
+      PACKET_RESET,
+      STREAM_HEADER,
+      PACKET_HEADER,
+      PACKET_DATA,
+      PACKET_VALIDATE,
+      PACKET_RESEND,
+      PACKET_FLUSHRX,
+      PACKET_TIMEOUT,
+      STREAM_COMPLETE,
+      STREAM_FAILED,
+    };
+
+    #pragma pack(push, 1)
+
+      struct StreamHeader {
+        uint16_t token;
+        uint32_t filesize;
+      };
+      union {
+        uint8_t stream_header_bytes[sizeof(StreamHeader)];
+        StreamHeader stream_header;
+      };
+
+      struct Packet {
+        struct Header {
+          uint32_t id;
+          uint16_t size, checksum;
+        };
+        union {
+          uint8_t header_bytes[sizeof(Header)];
+          Header header;
+        };
+        uint32_t bytes_received;
+        uint16_t checksum;
+        millis_t timeout;
+      } packet{};
+
+    #pragma pack(pop)
+
+    void packet_reset() {
+      packet.header.id = 0;
+      packet.header.size = 0;
+      packet.header.checksum = 0;
+      packet.bytes_received = 0;
+      packet.checksum = 0x53A2;
+      packet.timeout = millis() + STREAM_MAX_WAIT;
+    }
+
+    void stream_reset() {
+      packets_received = 0;
+      bytes_received = 0;
+      packet_retries = 0;
+      buffer_next_index = 0;
+      stream_header.token = 0;
+      stream_header.filesize = 0;
+    }
+
+    uint32_t checksum(uint32_t seed, uint8_t value) {
+      return ((seed ^ value) ^ (seed << 8)) & 0xFFFF;
+    }
+
+    // read the next byte from the data stream keeping track of
+    // whether the stream times out from data starvation
+    // takes the data variable by reference in order to return status
+    bool stream_read(uint8_t& data) {
+      if (ELAPSED(millis(), packet.timeout)) {
+        stream_state = StreamState::PACKET_TIMEOUT;
+        return false;
+      }
+      if (!serial_data_available(card.transfer_port)) return false;
+      data = read_serial(card.transfer_port);
+      packet.timeout = millis() + STREAM_MAX_WAIT;
+      return true;
+    }
+
+    template<const size_t buffer_size>
+    void receive(char (&buffer)[buffer_size]) {
+      uint8_t data = 0;
+      millis_t tranfer_timeout = millis() + RX_TIMESLICE;
+      while (PENDING(millis(), tranfer_timeout)) {
+        switch (stream_state) {
+          case StreamState::STREAM_RESET:
+            stream_reset();
+          case StreamState::PACKET_RESET:
+            packet_reset();
+            stream_state = StreamState::PACKET_HEADER;
+            break;
+          case StreamState::STREAM_HEADER: // we could also transfer the filename in this packet, rather than handling it in the gcode
+            for (size_t i = 0; i < sizeof(stream_header); ++i) {
+              stream_header_bytes[i] = buffer[i];
+            }
+            if (stream_header.token == 0x1234) {
+              stream_state = StreamState::PACKET_RESET;
+              bytes_received = 0;
+              time_stream_start = millis();
+              CARD_ECHO_P("echo: Datastream initialized (");
+              CARD_ECHO_P(stream_header.filesize);
+              CARD_ECHOLN_P("Bytes expected)");
+              CARD_ECHO_P("so"); // confirm active stream and the maximum block size supported
+              CARD_CHAR_P(static_cast<uint8_t>(buffer_size & 0xFF));
+              CARD_CHAR_P(static_cast<uint8_t>((buffer_size >> 8) & 0xFF));
+              CARD_CHAR_P('\n');
+            }
+            else {
+              CARD_ECHOLN_P("echo: Datastream initialization error (invalid token)");
+              stream_state = StreamState::STREAM_FAILED;
+            }
+            buffer_next_index = 0;
+            break;
+          case StreamState::PACKET_HEADER:
+            if (!stream_read(data)) break;
+
+            packet.header_bytes[packet.bytes_received++] = data;
+            if (packet.bytes_received == sizeof(Packet::Header)) {
+              if (packet.header.id == packets_received) {
+                buffer_next_index = 0;
+                packet.bytes_received = 0;
+                stream_state = StreamState::PACKET_DATA;
+              }
+              else {
+                CARD_ECHO_P("echo: Datastream packet out of order");
+                stream_state = StreamState::PACKET_FLUSHRX;
+              }
+            }
+            break;
+          case StreamState::PACKET_DATA:
+            if (!stream_read(data)) break;
+
+            if (buffer_next_index < buffer_size) {
+              buffer[buffer_next_index] = data;
+            }
+            else {
+              CARD_ECHO_P("echo: Datastream packet data buffer overrun");
+              stream_state = StreamState::STREAM_FAILED;
+              break;
+            }
+
+            packet.checksum = checksum(packet.checksum, data);
+            packet.bytes_received ++;
+            buffer_next_index ++;
+
+            if (packet.bytes_received == packet.header.size) {
+              stream_state = StreamState::PACKET_VALIDATE;
+            }
+            break;
+          case StreamState::PACKET_VALIDATE:
+            if (packet.header.checksum == packet.checksum) {
+              packet_retries = 0;
+              packets_received ++;
+              bytes_received += packet.header.size;
+
+              if (packet.header.id == 0) {                 // id 0 is always the stream descriptor
+                stream_state = StreamState::STREAM_HEADER; // defer packet confirmation to STREAM_HEADER state
+              }
+              else {
+                if (bytes_received < stream_header.filesize) {
+                  stream_state = StreamState::PACKET_RESET;    // reset and receive next packet
+                  CARD_ECHOLN_P("ok");   // transmit confirm packet received and valid token
+                }
+                else  {
+                  stream_state = StreamState::STREAM_COMPLETE; // no more data required
+                }
+                if (card.write(buffer, buffer_next_index) < 0) {
+                  stream_state = StreamState::STREAM_FAILED;
+                  CARD_ECHO_P("echo: IO ERROR");
+                  break;
+                };
+              }
+            }
+            else {
+              CARD_ECHO_P("echo: Block(");
+              CARD_ECHO_P(packet.header.id);
+              CARD_ECHOLN_P(") Corrupt");
+              stream_state = StreamState::PACKET_FLUSHRX;
+            }
+            break;
+          case StreamState::PACKET_RESEND:
+            if (packet_retries < MAX_RETRIES) {
+              packet_retries ++;
+              stream_state = StreamState::PACKET_RESET;
+              CARD_ECHO_P("echo: Resend request ");
+              CARD_ECHOLN_P(packet_retries);
+              CARD_ECHOLN_P("rs"); // transmit resend packet token
+            }
+            else {
+              stream_state = StreamState::STREAM_FAILED;
+            }
+            break;
+          case StreamState::PACKET_FLUSHRX:
+            if (ELAPSED(millis(), packet.timeout)) {
+              stream_state = StreamState::PACKET_RESEND;
+              break;
+            }
+            if (!serial_data_available(card.transfer_port)) break;
+            read_serial(card.transfer_port); // throw away data
+            packet.timeout = millis() + STREAM_MAX_WAIT;
+            break;
+          case StreamState::PACKET_TIMEOUT:
+            CARD_ECHOLN_P("echo: Datastream timeout");
+            stream_state = StreamState::PACKET_RESEND;
+            break;
+          case StreamState::STREAM_COMPLETE:
+            stream_state = StreamState::STREAM_RESET;
+            card.binary_mode = false;
+            card.closefile();
+            CARD_ECHO_P("echo: ");
+            CARD_ECHO_P(card.filename);
+            CARD_ECHO_P(" transfer completed @ ");
+            CARD_ECHO_P(((bytes_received / (millis() - time_stream_start) * 1000) / 1024 ));
+            CARD_ECHOLN_P("KiB/s");
+            CARD_ECHOLN_P("sc"); // transmit stream complete token
+            return;
+          case StreamState::STREAM_FAILED:
+            stream_state = StreamState::STREAM_RESET;
+            card.binary_mode = false;
+            card.closefile();
+            card.removeFile(card.filename);
+            CARD_ECHOLN_P("echo: File transfer failed");
+            CARD_ECHOLN_P("sf"); // transmit stream failed token
+            return;
+        }
+      }
+    }
+
+    static const uint16_t STREAM_MAX_WAIT = 500, RX_TIMESLICE = 20, MAX_RETRIES = 3;
+    uint8_t  packet_retries;
+    uint16_t buffer_next_index;
+    uint32_t packets_received,  bytes_received;
+    millis_t time_stream_start;
+    StreamState stream_state = StreamState::STREAM_RESET;
+
+  } binaryStream{};
+
+#endif // FAST_FILE_TRANSFER
+
 /**
  * Get all commands waiting on the serial port and queue them.
  * Exit when the buffer is full or when no more characters are
@@ -288,6 +546,18 @@ inline void get_serial_commands() {
               #endif
             ;
 
+  #if ENABLED(FAST_FILE_TRANSFER)
+    if (card.saving && card.binary_mode) {
+      /**
+       * For binary stream file transfer, use serial_line_buffer as the working
+       * receive buffer (which limits the packet size to MAX_CMD_SIZE).
+       * The receive buffer also limits the packet size for reliable transmission.
+       */
+      binaryStream.receive(serial_line_buffer[card.transfer_port]);
+      return;
+    }
+  #endif
+
   // If the command buffer is empty for too long,
   // send "wait" to indicate Marlin is still waiting.
   #if NO_TIMEOUTS > 0

Marlin/src/gcode/sdcard/M20-M30_M32-M34_M524_M928.cpp

@@ -157,7 +157,45 @@ void GcodeSuite::M27() {
 /**
  * M28: Start SD Write
  */
-void GcodeSuite::M28() { card.openFile(parser.string_arg, false); }
+void GcodeSuite::M28() {
+
+  #if ENABLED(FAST_FILE_TRANSFER)
+
+    const int16_t port =
+      #if NUM_SERIAL > 1
+        command_queue_port[cmd_queue_index_r]
+      #else
+        0
+      #endif
+    ;
+
+    bool binary_mode = false;
+    char *p = parser.string_arg;
+    if (p[0] == 'B' && NUMERIC(p[1])) {
+      binary_mode = p[1] > '0';
+      p += 2;
+      while (*p == ' ') ++p;
+    }
+
+    // Binary transfer mode
+    if ((card.binary_mode = binary_mode)) {
+      SERIAL_ECHO_START_P(port);
+      SERIAL_ECHO_P(port, " preparing to receive: ");
+      SERIAL_ECHOLN_P(port, p);
+      card.openFile(p, false);
+      #if NUM_SERIAL > 1
+        card.transfer_port = port;
+      #endif
+    }
+    else
+      card.openFile(p, false);
+
+  #else
+
+    card.openFile(parser.string_arg, false);
+
+  #endif
+}
 
 /**
  * M29: Stop SD Write

Marlin/src/sd/cardreader.cpp

@@ -33,6 +33,10 @@
 #include "../core/language.h"
 #include "../gcode/queue.h"
 
+#if ENABLED(EMERGENCY_PARSER)
+  #include "../feature/emergency_parser.h"
+#endif
+
 #if ENABLED(POWER_LOSS_RECOVERY)
   #include "../feature/power_loss_recovery.h"
 #endif
@@ -461,7 +465,11 @@ void CardReader::openFile(char * const path, const bool read, const bool subcall
     }
     else {
       saving = true;
-      SERIAL_PROTOCOLLNPAIR(MSG_SD_WRITE_TO_FILE, path);
+      getfilename(0, fname);
+      #if ENABLED(EMERGENCY_PARSER)
+        emergency_parser.disable();
+      #endif
+      SERIAL_PROTOCOLLNPAIR(MSG_SD_WRITE_TO_FILE, fname);
       lcd_setstatus(fname);
     }
   }
@@ -569,6 +577,9 @@ void CardReader::closefile(const bool store_location) {
   file.sync();
   file.close();
   saving = logging = false;
+  #if ENABLED(EMERGENCY_PARSER)
+    emergency_parser.enable();
+  #endif
 
   if (store_location) {
     //future: store printer state, filename and position for continuing a stopped print

Marlin/src/sd/cardreader.h

@@ -124,11 +124,8 @@ public:
   FORCE_INLINE uint32_t getIndex() { return sdpos; }
   FORCE_INLINE uint8_t percentDone() { return (isFileOpen() && filesize) ? sdpos / ((filesize + 99) / 100) : 0; }
   FORCE_INLINE char* getWorkDirName() { workDir.getFilename(filename); return filename; }
-
-  #if defined(__STM32F1__) && ENABLED(EEPROM_SETTINGS) && DISABLED(FLASH_EEPROM_EMULATION)
-    FORCE_INLINE int16_t read(void* buf, uint16_t nbyte) { return file.isOpen() ? file.read(buf, nbyte) : -1; }
-    FORCE_INLINE int16_t write(void* buf, uint16_t nbyte) { return file.isOpen() ? file.write(buf, nbyte) : -1; }
-  #endif
+  FORCE_INLINE int16_t read(void* buf, uint16_t nbyte) { return file.isOpen() ? file.read(buf, nbyte) : -1; }
+  FORCE_INLINE int16_t write(void* buf, uint16_t nbyte) { return file.isOpen() ? file.write(buf, nbyte) : -1; }
 
   Sd2Card& getSd2Card() { return sd2card; }
 
@@ -154,6 +151,16 @@ public:
   bool saving, logging, sdprinting, cardOK, filenameIsDir, abort_sd_printing;
   char filename[FILENAME_LENGTH], longFilename[LONG_FILENAME_LENGTH];
   int8_t autostart_index;
+
+  #if ENABLED(FAST_FILE_TRANSFER)
+    bool binary_mode;
+    #if NUM_SERIAL > 1
+      uint8_t transfer_port;
+    #else
+      constexpr uint8_t transfer_port = 0;
+    #endif
+  #endif
+
 private:
   SdFile root, workDir, workDirParents[MAX_DIR_DEPTH];
   uint8_t workDirDepth;