Added Auto Shift, tap key = normal, hold key = shifted state.

quantum/process_keycode/process_auto_shift.h

@@ -0,0 +1,28 @@
+/* Copyright 2017 Jeremy Cowgar
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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/>.
+ */
+
+#ifndef PROCESS_AUTO_SHIFT_H
+#define PROCESS_AUTO_SHIFT_H
+
+#include "quantum.h"
+
+#ifndef AUTO_SHIFT_TIMEOUT
+  #define AUTO_SHIFT_TIMEOUT 175
+#endif
+
+bool process_auto_shift(uint16_t keycode, keyrecord_t *record);
+
+#endif