/* $Id: udelay.h,v 1.4 2002/04/29 11:00:28 reinelt Exp $ * * short delays  * * Copyright 1999, 2000 by Michael Reinelt (reinelt@eunet.at) * * 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, 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. * * * $Log: udelay.h,v $ * Revision 1.4  2002/04/29 11:00:28  reinelt * * added Toshiba T6963 driver * added ndelay() with nanosecond resolution * * Revision 1.3  2001/03/12 13:44:58  reinelt * * new udelay() using Time Stamp Counters * * Revision 1.2  2001/03/12 12:39:36  reinelt * * reworked autoconf a lot: drivers may be excluded, #define's went to config.h * * Revision 1.1  2000/04/15 16:56:52  reinelt * * moved delay loops to udelay.c * renamed -d (debugging) switch to -v (verbose) * new switch -d to calibrate delay loop * 'Delay' entry for HD44780 back again * delay loops will not calibrate automatically, because this will fail with high CPU load * */#ifndef _UDELAY_H_#define _UDELAY_H_/* stolen from linux/asm-i386/processor.h *//* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */static inline void rep_nop(void){  __asm__ __volatile__("rep;nop");}#ifdef USE_OLD_UDELAYextern unsigned long loops_per_usec;void udelay_calibrate (void);#elsevoid udelay_init (void);#endifvoid ndelay (unsigned long nsec);#define udelay(usec) ndelay(usec*1000)#endif