sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-30 13:11:11 +03:00
Code Issues Packages Projects Releases Wiki Activity

Introduce the new timer subsystem.

Browse Source 
Timer subsystem initialization code in core/timer.c

	Split the BIOS and RTDSC timer drivers from i386_timer.c

	Split arch/i386/firmware/pcbios/bios.c into the RTSDC
	timer driver and arch/i386/core/nap.c

	Split the headers properly:
		include/unistd.h - delay functions to be used by the
					gPXE core and drivers.

		include/gpxe/timer.h - the fimer subsystem interface
					to be used by the timer drivers
					and currticks() to be used by
					the code gPXE subsystems.

		include/latch.h	- removed
		include/timer.h - scheduled for removal. Some driver
					are using currticks, which is
					only for core subsystems.

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
This commit is contained in:
Alexey Zaytsev
2007-12-01 07:07:01 +03:00
parent 844828cb15
commit 4006d229e5
13 changed files with 384 additions and 296 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/include/gpxe/timer.h Normal file
View File

@@ -0,0 +1,32 @@
#ifndef GPXE_TIMER_H
#define GPXE_TIMER_H
#include <stddef.h>
typedef uint32_t tick_t;
#define MSECS_IN_SEC (1000)
#define USECS_IN_SEC (1000*1000)
#define USECS_IN_MSEC (1000)
#define TICKS_PER_SEC USECS_IN_SEC
tick_t currticks(void);
void generic_currticks_udelay(unsigned int usecs);
struct timer {
/* Returns zero on successful initialisation. */
int (*init) (void);
/* Return the current time, int mictoseconds since the beginning. */
tick_t (*currticks) (void);
/* Sleep for a few useconds. */
void (*udelay) (unsigned int useconds);
};
#define __timer(order) __table (struct timer, timers, order)
#endif /* GPXE_TIMER_H */