Moved the lightpen names from <mouse.h> to a new <pen.h>.

Renamed the adjuster pointer.

libsrc/c128/mouseref.s

@@ -1,10 +1,10 @@
 ;
 ; Pointer for library references by device drivers.
 ;
-; 2013-06-23, Greg King
+; 2013-07-25, Greg King
 ;
 
-        .export         mouse_libref, _mouse_adjuster
+        .export         mouse_libref, _pen_adjuster
 
         .data
 
@@ -17,7 +17,7 @@ mouse_libref:                   ; generic label for mouse-kernel
 ; The function might read a value from a file; or, it might ask the user
 ; to help calibrate the driver.
 ;
-; void __fastcall__ (*mouse_adjuster)(unsigned char *) = NULL;
+; void __fastcall__ (*pen_adjuster)(unsigned char *) = NULL;
 ;
-_mouse_adjuster:
+_pen_adjuster:
         .addr   $0000

libsrc/c128/pencalib.c

@@ -1,13 +1,14 @@
 /*
 ** Calibrate lightpen drivers to the current video hardware.
 **
-** 2013-06-17, Greg King
+** 2013-07-25, Greg King
 **
 */
 
 
 #include <conio.h>
 #include <mouse.h>
+#include <pen.h>
 
 
 #define COMMAND1 "Adjust by clicking on line."

libsrc/c64/mouseref.s

@@ -1,10 +1,10 @@
 ;
 ; Pointer for library references by device drivers.
 ;
-; 2013-06-23, Greg King
+; 2013-07-25, Greg King
 ;
 
-        .export         mouse_libref, _mouse_adjuster
+        .export         mouse_libref, _pen_adjuster
 
         .data
 
@@ -17,7 +17,7 @@ mouse_libref:                   ; generic label for mouse-kernel
 ; The function might read a value from a file; or, it might ask the user
 ; to help calibrate the driver.
 ;
-; void __fastcall__ (*mouse_adjuster)(unsigned char *) = NULL;
+; void __fastcall__ (*pen_adjuster)(unsigned char *) = NULL;
 ;
-_mouse_adjuster:
+_pen_adjuster:
         .addr   $0000

libsrc/c64/pencalib.c

@@ -1,13 +1,14 @@
 /*
 ** Calibrate lightpen drivers to the current video hardware.
 **
-** 2013-06-17, Greg King
+** 2013-07-25, Greg King
 **
 */
 
 
 #include <conio.h>
 #include <mouse.h>
+#include <pen.h>
 
 
 #define COMMAND1 "Adjust by clicking on line."

libsrc/cbm/penadjust.c

@@ -1,14 +1,14 @@
 /*
 ** Main lightpen driver calibration functions.
 **
-** 2013-06-23, Greg King
+** 2013-07-25, Greg King
 */
 
 
 #include <stddef.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <mouse.h>
+#include <pen.h>
 
 
 static const char *name;
@@ -40,15 +40,15 @@ static void __fastcall__ adjuster (unsigned char *XOffset)
 /* pen_adjust() is optional; if you want to use its feature,
 ** then it must be called before a driver is installed.
 ** Note:  This function merely saves the file-name pointer, and sets
-** the mouse_adjuster pointer.  The file will be read only when a driver
+** the pen_adjuster pointer.  The file will be read only when a driver
 ** is installed, and only if that driver wants to be calibrated.
 */
 void __fastcall__ pen_adjust (const char *filename)
 {
     if (filename != NULL && filename[0] != '\0') {
         name = filename;
-        mouse_adjuster = adjuster;
+        pen_adjuster = adjuster;
     } else {
-        mouse_adjuster = pen_calibrate;
+        pen_adjuster = pen_calibrate;
     }
 }