Homing alarm upon no switch. Licensing update.

- Homing cycle failure reports alarm feedback when the homing cycle is
exited via a reset, interrupted by a safety door switch, or does not
find the limit switch.

- Homing cycle bug fix when not finding the limit switch. It would just
idle before, but now will exit with an alarm.

- Licensing update. Corrected licensing according to lawyer
recommendations. Removed references to other Grbl versions.

COPYING

@@ -1,56 +1,31 @@
 ------------------------------------------------------------------------------
-COPYRIGHT NOTICE FOR GRBL v0.9:
+COPYRIGHT NOTICE FOR GRBL:
 ------------------------------------------------------------------------------
 
-GRBL v0.9 - Embedded CNC g-code interpreter and motion-controller
+Grbl - Embedded CNC g-code interpreter and motion-controller
-Copyright (c) 2012-2014 Sungeun K. Jeon
 
-This program is free software: you can redistribute it and/or modify
+Copyright (c) 2011-2015 Sungeun K. Jeon
+Copyright (c) 2009-2011 Simen Svale Skogsrud
+Copyright (c) 2011 Jens Geisler
+
+Grbl is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
-This program is distributed in the hope that it will be useful,
+Grbl is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
+along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
-
 
 
 ------------------------------------------------------------------------------
 COPYRIGHT NOTICE(S) FOR WORK CONTAINED IN THIS SOFTWARE:
 ------------------------------------------------------------------------------
 
-The MIT License (MIT)
-
-GRBL(tm) v0.8 - Embedded CNC g-code interpreter and motion-controller
-Copyright (c) 2009-2011 Simen Svale Skogsrud
-Copyright (c) 2011-2013 Sungeun K. Jeon
-Copyright (c) 2011 Jens Geisler
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
--------------
-
 Copyright (c) 2008, Atmel Corporation All rights reserved.
 
 Redistribution and use in source and binary forms, with or without 
@@ -704,5 +679,3 @@ Program, unless a warranty or assumption of liability accompanies a
 copy of the Program in return for a fee.
 
                      END OF TERMS AND CONDITIONS
-
-------------------------------------------------------------------------------

grbl/config.h

@@ -1,8 +1,9 @@
 /*
   config.h - compile time configuration
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2013-2015 Sungeun K. Jeon
+  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2013 Sungeun K. Jeon
-*/  
   
 // This file contains compile-time configurations for Grbl's internal system. For the most part,
 // users will not need to directly modify these, but they are here for specific needs, i.e.

grbl/coolant_control.c

@@ -1,6 +1,6 @@
 /*
   coolant_control.c - coolant control methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
 

grbl/coolant_control.h

@@ -1,6 +1,6 @@
 /*
   coolant_control.h - spindle control methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
 

grbl/cpu_map.h

@@ -1,6 +1,6 @@
 /*
   cpu_map.h - CPU and pin mapping configuration file
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
 

grbl/defaults.h

@@ -1,6 +1,6 @@
 /*
   defaults.h - defaults settings configuration file
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
 

grbl/eeprom.h

@@ -2,28 +2,20 @@
   eeprom.h - EEPROM methods
   Part of Grbl
 
-  The MIT License (MIT)
-
-  GRBL(tm) - Embedded CNC g-code interpreter and motion-controller
   Copyright (c) 2009-2011 Simen Svale Skogsrud
 
-  Permission is hereby granted, free of charge, to any person obtaining a copy
+  Grbl is free software: you can redistribute it and/or modify
-  of this software and associated documentation files (the "Software"), to deal
+  it under the terms of the GNU General Public License as published by
-  in the Software without restriction, including without limitation the rights
+  the Free Software Foundation, either version 3 of the License, or
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  (at your option) any later version.
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
 
-  The above copyright notice and this permission notice shall be included in
+  Grbl is distributed in the hope that it will be useful,
-  all copies or substantial portions of the Software.
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
 
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  You should have received a copy of the GNU General Public License
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
 */
 
 #ifndef eeprom_h

grbl/gcode.c

@@ -1,8 +1,9 @@
 /*
   gcode.c - rs274/ngc parser.
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/  
 
 #include "grbl.h"
 

grbl/gcode.h

@@ -1,8 +1,9 @@
 /*
   gcode.h - rs274/ngc parser.
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/  
 
 #ifndef gcode_h
 #define gcode_h

grbl/grbl.h

@@ -1,6 +1,6 @@
 /*
   grbl.h - main Grbl include file
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2015 Sungeun K. Jeon
 

grbl/limits.c

@@ -1,8 +1,9 @@
 /*
   limits.c - code pertaining to limit-switches and performing the homing cycle
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2012 Sungeun K. Jeon
-*/  
   
 #include "grbl.h"
 
@@ -202,8 +197,9 @@ void limits_go_home(uint8_t cycle_mask)
       st_prep_buffer(); // Check and prep segment buffer. NOTE: Should take no longer than 200us.
       // Check only for user reset. No time to run protocol_execute_realtime() in this loop.
 
-      if (sys.rt_exec_state & (EXEC_SAFETY_DOOR | EXEC_RESET)) { // Abort homing and alarm upon safety door.
+      // Exit routines: User abort homing and alarm upon safety door or no limit switch found.
-        if (sys.rt_exec_state & EXEC_SAFETY_DOOR) { mc_reset(); }  
+      if (sys.rt_exec_state & (EXEC_SAFETY_DOOR | EXEC_RESET | EXEC_CYCLE_STOP)) { 
+        if (sys.rt_exec_state & (EXEC_SAFETY_DOOR | EXEC_CYCLE_STOP)) { mc_reset(); }  
         protocol_execute_realtime();
         return;
       }

grbl/limits.h

@@ -1,8 +1,9 @@
 /*
   limits.h - code pertaining to limit-switches and performing the homing cycle
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon  
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,11 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-*/  
 
 #ifndef limits_h
 #define limits_h 

grbl/main.c

@@ -1,8 +1,9 @@
 /*
   main.c - An embedded CNC Controller with rs274/ngc (g-code) support
-  Part of Grbl v0.9
+  Part of Grbl
   
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/  
 
 #include "grbl.h"
 

grbl/motion_control.c

@@ -1,8 +1,10 @@
 /*
   motion_control.c - high level interface for issuing motion commands
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
+  Copyright (c) 2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,13 +19,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-    Copyright (c) 2011 Jens Geisler
-*/  
 
 #include "grbl.h"
 
@@ -361,7 +356,8 @@ void mc_reset()
     // the steppers enabled by avoiding the go_idle call altogether, unless the motion state is
     // violated, by which, all bets are off.
     if ((sys.state & (STATE_CYCLE | STATE_HOMING)) || (sys.suspend == SUSPEND_ENABLE_HOLD)) {
-      bit_true_atomic(sys.rt_exec_alarm, EXEC_ALARM_ABORT_CYCLE);
+      if (sys.state == STATE_HOMING) { bit_true_atomic(sys.rt_exec_alarm, EXEC_ALARM_HOMING_FAIL); }
+      else { bit_true_atomic(sys.rt_exec_alarm, EXEC_ALARM_ABORT_CYCLE); }
       st_go_idle(); // Force kill steppers. Position has likely been lost.
     }
   }

grbl/motion_control.h

@@ -1,8 +1,9 @@
 /*
   motion_control.h - high level interface for issuing motion commands
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/  
 
 #ifndef motion_control_h
 #define motion_control_h

grbl/nuts_bolts.c

@@ -1,8 +1,9 @@
 /*
   nuts_bolts.c - Shared functions
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 

grbl/nuts_bolts.h

@@ -1,8 +1,9 @@
 /*
   nuts_bolts.h - Header file for shared definitions, variables, and functions
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon  
+  Copyright (c) 2011-2015 Sungeun K. Jeon 
+  Copyright (c) 2009-2011 Simen Svale Skogsrud 
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #ifndef nuts_bolts_h
 #define nuts_bolts_h

grbl/planner.c

@@ -1,8 +1,10 @@
 /*
   planner.c - buffers movement commands and manages the acceleration profile plan
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud 
+  Copyright (c) 2011 Jens Geisler 
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,13 +19,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-    Copyright (c) 2011 Jens Geisler
-*/ 
 
 #include "grbl.h"
 

grbl/planner.h

@@ -1,8 +1,9 @@
 /*
   planner.h - buffers movement commands and manages the acceleration profile plan
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon 
+  Copyright (c) 2011-2015 Sungeun K. Jeon 
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #ifndef planner_h
 #define planner_h

grbl/print.c

@@ -1,8 +1,9 @@
 /*
   print.c - Functions for formatting output strings
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 

grbl/print.h

@@ -1,8 +1,9 @@
 /*
   print.h - Functions for formatting output strings
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #ifndef print_h
 #define print_h

grbl/probe.c

@@ -1,6 +1,6 @@
 /*
   probe.c - code pertaining to probing methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2014-2015 Sungeun K. Jeon
 

grbl/probe.h

@@ -1,6 +1,6 @@
 /*
   probe.h - code pertaining to probing methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2014-2015 Sungeun K. Jeon
 

grbl/protocol.c

@@ -1,8 +1,9 @@
 /*
   protocol.c - controls Grbl execution protocol and procedures
-  Part of Grbl v0.9
+  Part of Grbl
   
-  Copyright (c) 2012-2015 Sungeun K. Jeon  
+  Copyright (c) 2011-2015 Sungeun K. Jeon  
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 
@@ -198,6 +193,8 @@ void protocol_execute_realtime()
       report_alarm_message(ALARM_ABORT_CYCLE);
     } else if (rt_exec & EXEC_ALARM_PROBE_FAIL) {
       report_alarm_message(ALARM_PROBE_FAIL);
+    } else if (rt_exec & EXEC_ALARM_HOMING_FAIL) {
+      report_alarm_message(ALARM_HOMING_FAIL);
     }
     // Halt everything upon a critical event flag. Currently hard and soft limits flag this.
     if (rt_exec & EXEC_CRITICAL_EVENT) {

grbl/protocol.h

@@ -1,8 +1,9 @@
 /*
   protocol.h - controls Grbl execution protocol and procedures
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #ifndef protocol_h
 #define protocol_h

grbl/report.c

@@ -1,6 +1,6 @@
 /*
   report.c - reporting and messaging methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon  
 
@@ -98,6 +98,8 @@ void report_alarm_message(int8_t alarm_code)
     printPgmString(PSTR("Abort during cycle")); break;
     case ALARM_PROBE_FAIL:
     printPgmString(PSTR("Probe fail")); break;
+    case ALARM_HOMING_FAIL:
+    printPgmString(PSTR("Homing fail")); break;
   }
   printPgmString(PSTR("\r\n"));
   delay_ms(500); // Force delay to ensure message clears serial write buffer.

grbl/report.h

@@ -1,6 +1,6 @@
 /*
   report.h - reporting and messaging methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
 
@@ -59,6 +59,7 @@
 #define ALARM_SOFT_LIMIT_ERROR -2
 #define ALARM_ABORT_CYCLE -3
 #define ALARM_PROBE_FAIL -4
+#define ALARM_HOMING_FAIL -5
 
 // Define Grbl feedback message codes.
 #define MESSAGE_CRITICAL_EVENT 1

grbl/serial.c

@@ -1,8 +1,9 @@
 /*
   serial.c - Low level functions for sending and recieving bytes via the serial port
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 

grbl/serial.h

@@ -1,8 +1,9 @@
 /*
   serial.c - Low level functions for sending and recieving bytes via the serial port
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #ifndef serial_h
 #define serial_h

grbl/settings.c

@@ -1,8 +1,9 @@
 /*
   settings.c - eeprom configuration handling 
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon  
+  Copyright (c) 2011-2015 Sungeun K. Jeon  
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 

grbl/settings.h

@@ -1,8 +1,9 @@
 /*
   settings.h - eeprom configuration handling 
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #ifndef settings_h
 #define settings_h

grbl/spindle_control.c

@@ -1,8 +1,9 @@
 /*
   spindle_control.c - spindle control methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 

grbl/spindle_control.h

@@ -1,8 +1,9 @@
 /*
   spindle_control.h - spindle control methods
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */ 
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2012 Sungeun K. Jeon
-*/ 
 
 #ifndef spindle_control_h
 #define spindle_control_h 

grbl/stepper.c

@@ -1,8 +1,9 @@
 /*
   stepper.c - stepper motor driver: executes motion plans using stepper motors
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
   
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011-2012 Sungeun K. Jeon
-*/ 
 
 #include "grbl.h"
 

grbl/stepper.h

@@ -1,8 +1,9 @@
 /*
   stepper.h - stepper motor driver: executes motion plans of planner.c using the stepper motors
-  Part of Grbl v0.9
+  Part of Grbl
 
-  Copyright (c) 2012-2015 Sungeun K. Jeon
+  Copyright (c) 2011-2015 Sungeun K. Jeon
+  Copyright (c) 2009-2011 Simen Svale Skogsrud
 
   Grbl is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -17,12 +18,6 @@
   You should have received a copy of the GNU General Public License
   along with Grbl.  If not, see <http://www.gnu.org/licenses/>.
 */
-/* 
-  This file is based on work from Grbl v0.8, distributed under the 
-  terms of the MIT-license. See COPYING for more details.  
-    Copyright (c) 2009-2011 Simen Svale Skogsrud
-    Copyright (c) 2011 Sungeun K. Jeon
-*/ 
 
 #ifndef stepper_h
 #define stepper_h 

grbl/system.c

@@ -1,6 +1,6 @@
 /*
   system.c - Handles system level commands and real-time processes
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2014-2015 Sungeun K. Jeon  
 

grbl/system.h

@@ -1,6 +1,6 @@
 /*
   system.h - Header for system level commands and real-time processes
-  Part of Grbl v0.9
+  Part of Grbl
 
   Copyright (c) 2014-2015 Sungeun K. Jeon  
 
@@ -45,6 +45,7 @@
 #define EXEC_ALARM_SOFT_LIMIT   bit(2) // bitmask 00000100
 #define EXEC_ALARM_ABORT_CYCLE  bit(3) // bitmask 00001000
 #define EXEC_ALARM_PROBE_FAIL   bit(4) // bitmask 00010000
+#define EXEC_ALARM_HOMING_FAIL  bit(5) // bitmask 00100000
 
 // Define system state bit map. The state variable primarily tracks the individual functions
 // of Grbl to manage each without overlapping. It is also used as a messaging flag for