diff options
Diffstat (limited to 'firmware/kernel.h')
-rw-r--r-- | firmware/kernel.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/firmware/kernel.h b/firmware/kernel.h new file mode 100644 index 0000000000..60e8ad6db1 --- /dev/null +++ b/firmware/kernel.h | |||
@@ -0,0 +1,36 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2002 by Björn Stenberg | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | #ifndef _KERNEL_H_ | ||
20 | #define _KERNEL_H_ | ||
21 | |||
22 | /* wrap-safe macros for tick comparison */ | ||
23 | #define TIME_AFTER(a,b) ((long)(b) - (long)(a) < 0) | ||
24 | #define TIME_BEFORE(a,b) TIME_AFTER(b,a) | ||
25 | |||
26 | #define HZ 100 /* number of ticks per second */ | ||
27 | |||
28 | /* global tick variable */ | ||
29 | extern long current_tick; | ||
30 | |||
31 | /* kernel functions */ | ||
32 | extern void yield(void); | ||
33 | extern void sleep(int ticks); | ||
34 | |||
35 | |||
36 | #endif | ||