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[timer] Formalise the timer API

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We now have two implementations for the timer API: one using the
time-of-day counter at 40:70 and one using RDTSC.  Both make use of
timer2_udelay().
This commit is contained in:
Michael Brown
2008-10-12 19:56:52 +01:00
parent e6f276ece3
commit 16f1e35775
22 changed files with 386 additions and 284 deletions
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18
src/include/unistd.h
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@@ -4,7 +4,6 @@
#include <stddef.h>
#include <stdarg.h>
unsigned int sleep ( unsigned int seconds );
extern int execv ( const char *command, char * const argv[] );
/**
@@ -22,10 +21,21 @@ extern int execv ( const char *command, char * const argv[] );
rc; \
} )
void udelay(unsigned int usecs);
void mdelay(unsigned int msecs);
/* Pick up udelay() */
#include <gpxe/timer.h>
#define usleep(x) udelay(x)
/*
* sleep() prototype is defined by POSIX.1. usleep() prototype is
* defined by 4.3BSD. udelay() and mdelay() prototypes are chosen to
* be reasonably sensible.
*
*/
extern unsigned int sleep ( unsigned int seconds );
extern void mdelay ( unsigned long msecs );
static inline __always_inline void usleep ( unsigned long usecs ) {
udelay ( usecs );
}
#endif /* _UNISTD_H */