Rev 239 |
Rev 299 |
Go to most recent revision |
Blame |
Compare with Previous |
Last modification |
View Log
| RSS feed
/* Project: OSLib
* Description: The OS Construction Kit
* Date: 1.6.2000
* Idea by: Luca Abeni & Gerardo Lamastra
*
* OSLib is an SO project aimed at developing a common, easy-to-use
* low-level infrastructure for developing OS kernels and Embedded
* Applications; it partially derives from the HARTIK project but it
* currently is independently developed.
*
* OSLib is distributed under GPL License, and some of its code has
* been derived from the Linux kernel source; also some important
* ideas come from studying the DJGPP go32 extender.
*
* We acknowledge the Linux Community, Free Software Foundation,
* D.J. Delorie and all the other developers who believe in the
* freedom of software and ideas.
*
* For legalese, check out the included GPL license.
*/
/* Advanced Timer
* Date: 8.4.2003
* Author: Giacomo Guidi <giacomo@gandalf.sssup.it>
*
*/
#ifndef __ADVTIMER_H__
#define __ADVTIMER_H__
#include <ll/i386/defs.h>
BEGIN_DEF
/* TSC */
#define rdtsc(low,high) \
__asm__ __volatile__("xorl %%eax,%%eax\n\t" \
"cpuid\n\t" \
"rdtsc\n\t" \
"movl %%eax,%%esi\n\t" \
"movl %%edx,%%edi\n\t" \
"xorl %%eax,%%eax\n\t" \
"cpuid" \
: "=S" (low), "=D" (high) \
:: "ebx", "ecx")
#define rdtscll(val) \
__asm__ __volatile__("xorl %%eax,%%eax\n\t" \
"cpuid\n\t" \
"rdtsc\n\t" \
"pushl %%eax\n\t" \
"pushl %%edx\n\t" \
"xorl %%eax,%%eax\n\t" \
"cpuid\n\t" \
"popl %%edx\n\t" \
"popl %%eax\n\t" \
: "=A" (val) \
:: "ebx","ecx")
/* RTC */
#define RTC_PORT(x) (0x70 + (x))
#define CMOS_READ(addr,val) \
{ \
outp(RTC_PORT(0),(addr)); \
val = inp(RTC_PORT(1)); \
}
#define CMOS_WRITE(addr,val) \
{ \
outp(RTC_PORT(0),(addr)); \
outp(RTC_PORT(1),(val)); \
}
#define RTC_IRQ 8
void ll_init_advtimer(void);
void ll_restore_CMOS(void);
END_DEF
#endif