usr/src/grub/grub-0.97/netboot/timer.c

   1 /* A couple of routines to implement a low-overhead timer for drivers */
   2
   3  /*
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2, or (at
   7  * your option) any later version.
   8  */
   9 #include        "grub.h"
  10 #include        "timer.h"
  11
  12 /* Machine Independant timer helper functions */
  13
  14 void mdelay(unsigned int msecs)
  15 {
  16         unsigned int i;
  17         for(i = 0; i < msecs; i++) {
  18                 udelay(1000);
  19                 poll_interruptions();
  20         }
  21 }
  22
  23 void waiton_timer2(unsigned int ticks)
  24 {
  25         load_timer2(ticks);
  26         while(timer2_running()) {
  27                 poll_interruptions();
  28         }
  29 }