X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fkeyb.h;h=a5297e4ad3c7baf3361d0e236f726d27c4d1ff1f;hb=3cb6f9dad7e37db865bd3cbccf0b5d6471fdd73f;hp=6b8f24cc1add4236b2d7272f6a5215f0c7177b5c;hpb=a2f94f569a4c99204de02814a20098a71527e913;p=bootcensus

diff --git a/src/keyb.h b/src/keyb.h
index 6b8f24c..a5297e4 100644
--- a/src/keyb.h
+++ b/src/keyb.h
@@ -1,3 +1,20 @@
+/*
+pcboot - bootable PC demo/game kernel
+Copyright (C) 2018  John Tsiombikas <nuclear@member.fsf.org>
+
+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 3 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 <https://www.gnu.org/licenses/>.
+*/
 #ifndef KEYB_H_
 #define KEYB_H_
 
@@ -39,4 +56,14 @@ int kb_getkey(void);
 
 void kb_putback(int key);
 
+/* returns 1 if the keyboard controller is ready to read/write
+ * returns 0 if the wait times out
+ */
+int kb_wait_write(void);
+int kb_wait_read(void);
+
+void kb_send_cmd(unsigned char cmd);
+void kb_send_data(unsigned char data);
+unsigned char kb_read_data(void);
+
 #endif	/* KEYB_H_ */