diff options
Diffstat (limited to '')
| -rw-r--r-- | udelay.c | 17 |
1 files changed, 11 insertions, 6 deletions
@@ -1,4 +1,4 @@ -/* $Id: udelay.c,v 1.16 2004/04/12 05:14:42 reinelt Exp $ +/* $Id: udelay.c,v 1.17 2004/06/20 10:09:56 reinelt Exp $ * * short delays * @@ -22,6 +22,10 @@ * * * $Log: udelay.c,v $ + * Revision 1.17 2004/06/20 10:09:56 reinelt + * + * 'const'ified the whole source + * * Revision 1.16 2004/04/12 05:14:42 reinelt * another BIG FAT WARNING on the use of raw ports instead of ppdev * @@ -146,7 +150,7 @@ unsigned long loops_per_usec; -void ndelay (unsigned long nsec) +void ndelay (const unsigned long nsec) { unsigned long loop=(nsec*loops_per_usec+999)/1000; @@ -265,7 +269,7 @@ void udelay_init (void) } -void ndelay (unsigned long nsec) +void ndelay (const unsigned long nsec) { #ifdef HAVE_ASM_MSR_H @@ -273,14 +277,15 @@ void ndelay (unsigned long nsec) if (ticks_per_usec) { unsigned int t1, t2; - - nsec=(nsec*ticks_per_usec+999)/1000; + unsigned long tsc; + + tsc=(nsec*ticks_per_usec+999)/1000; rdtscl(t1); do { rep_nop(); rdtscl(t2); - } while ((t2-t1)<nsec); + } while ((t2-t1)<tsc); } else |