diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/char/rio/riotime.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/char/rio/riotime.h')
-rw-r--r-- | drivers/char/rio/riotime.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/char/rio/riotime.h b/drivers/char/rio/riotime.h new file mode 100644 index 000000000000..66d52bc0549b --- /dev/null +++ b/drivers/char/rio/riotime.h @@ -0,0 +1,63 @@ +/**************************************************************************** + ******* ******* + ******* T I M E + ******* ******* + **************************************************************************** + + Author : Jeremy Rolls + Date : + + * + * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK. + * + + * 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + Version : 0.01 + + + Mods + ---------------------------------------------------------------------------- + Date By Description + ---------------------------------------------------------------------------- + + ***************************************************************************/ + +#ifndef _riotime_h +#define _riotime_h 1 + +#ifndef lint +#ifdef SCCS +static char *_rio_riotime_h_sccs = "@(#)riotime.h 1.1" ; +#endif +#endif + +#define TWO_POWER_FIFTEEN (ushort)32768 +#define RioTime() riotime +#define RioTimeAfter(time1,time2) ((ushort)time1 - (ushort)time2) < TWO_POWER_FIFTEEN +#define RioTimePlus(time1,time2) ((ushort)time1 + (ushort)time2) + +/************************************** + * Convert a RIO tick (1/10th second) + * into transputer low priority ticks + *************************************/ +#define RioTimeToLow(time) (time*(100000 / 64)) +#define RioLowToTime(time) ((time*64)/100000) + +#define RIOTENTHSECOND (ushort)1 +#define RIOSECOND (ushort)(RIOTENTHSECOND * 10) +#endif + +/*********** end of file ***********/ |