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micro_delay in sysutil, used in ti1225, dp8390, fxp and

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orinoco now. Uses a combination of tickdelay (where possible) and
calibrated busywait (where necessary).
This commit is contained in:
Ben Gras
2007-07-31 15:01:49 +00:00
parent 2dc2db4ba1
commit 03446f5554
8 changed files with 105 additions and 49 deletions
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10
include/minix/sysutil.h
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@@ -1,5 +1,5 @@
#ifndef _EXTRALIB_H
#define _EXTRALIB_H
#ifndef _MINIX_SYSUTIL_H
#define _MINIX_SYSUTIL_H 1
/* Extra system library definitions to support device drivers and servers.
*
@@ -46,6 +46,10 @@ _PROTOTYPE( void report, (char *who, char *mess, int num));
_PROTOTYPE( void panic, (char *who, char *mess, int num));
_PROTOTYPE( int getuptime, (clock_t *ticks));
_PROTOTYPE( int tickdelay, (clock_t ticks));
_PROTOTYPE( int micro_delay_calibrate, (void));
_PROTOTYPE( int micro_delay, (u32_t micros));
#endif /* _EXTRALIB_H */
#define MICROS_TO_TICKS(m) (((m)*HZ/1000000)+1)
#endif /* _MINIX_SYSUTIL_H */