Fixed bug 5346 - Add FreeBSD evdev KBIO keyboard input driver

wahil1976

This patch adds the KBIO text input driver for FreeBSD, which allows text input to fully work without text spilling out into the console. It also supports accented input, AltGr keys and Alt Lock combinations.

Tested with US accent keys layout and various AltGr layouts.

configure

@@ -22799,6 +22799,45 @@ $as_echo "#define SDL_INPUT_LINUXKD 1" >>confdefs.h
     fi
 }
 
+
+CheckInputKBIO()
+{
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for FreeBSD kbio.h" >&5
+$as_echo_n "checking for FreeBSD kbio.h... " >&6; }
+    use_input_kbio=no
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+      #include <sys/kbio.h>
+      #include <sys/ioctl.h>
+
+int
+main ()
+{
+
+    	accentmap_t accTable;
+        ioctl(0, KDENABIO, 1);
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+    use_input_kbio=yes
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $use_input_kbio" >&5
+$as_echo "$use_input_kbio" >&6; }
+    if test x$use_input_kbio = xyes; then
+
+$as_echo "#define SDL_INPUT_FBSDKBIO 1" >>confdefs.h
+
+        SUMMARY_input="${SUMMARY_input} fbsdkbio"
+    fi
+}
+
 CheckLibUDev()
 {
     # Check whether --enable-libudev was given.
@@ -24676,6 +24715,9 @@ case "$host" in
           linux)
               CheckInputKD
           ;;
+          freebsd)
+              CheckInputKBIO
+          ;;
         esac
         CheckTslib
         CheckUSBHID
@@ -24840,6 +24882,7 @@ $as_echo "#define SDL_TIMER_UNIX 1" >>confdefs.h
         if test x$use_input_events = xyes; then
             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev.c"
             SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev_kbd.c"
+            SOURCES="$SOURCES $srcdir/src/core/freebsd/SDL_evdev_kbd_freebsd.c"
         fi
         # Set up other core UNIX files
         SOURCES="$SOURCES $srcdir/src/core/linux/SDL_evdev_capabilities.c"