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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 120 | giacomo | 1 | /* Project: OSLib |
| 2 | * Description: The OS Construction Kit |
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| 3 | * Date: 1.6.2000 |
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| 4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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| 5 | * |
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| 6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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| 7 | * low-level infrastructure for developing OS kernels and Embedded |
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| 8 | * Applications; it partially derives from the HARTIK project but it |
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| 9 | * currently is independently developed. |
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| 10 | * |
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| 11 | * OSLib is distributed under GPL License, and some of its code has |
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| 12 | * been derived from the Linux kernel source; also some important |
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| 13 | * ideas come from studying the DJGPP go32 extender. |
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| 14 | * |
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| 15 | * We acknowledge the Linux Community, Free Software Foundation, |
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| 16 | * D.J. Delorie and all the other developers who believe in the |
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| 17 | * freedom of software and ideas. |
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| 18 | * |
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| 19 | * For legalese, check out the included GPL license. |
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| 20 | */ |
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| 21 | |||
| 22 | /* Advanced Timer |
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| 23 | * Date: 8.4.2003 |
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| 24 | * Author: Giacomo Guidi <giacomo@gandalf.sssup.it> |
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| 25 | * |
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| 26 | */ |
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| 27 | |||
| 28 | #ifndef __ADVTIMER_H__ |
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| 29 | #define __ADVTIMER_H__ |
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| 30 | |||
| 31 | #include <ll/i386/defs.h> |
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| 32 | BEGIN_DEF |
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| 33 | |||
| 34 | /* TSC */ |
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| 35 | |||
| 36 | #define rdtsc(low,high) \ |
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| 239 | giacomo | 37 | __asm__ __volatile__("xorl %%eax,%%eax\n\t" \ |
| 242 | giacomo | 38 | "cpuid\n\t" \ |
| 39 | "rdtsc\n\t" \ |
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| 40 | "movl %%eax,%%esi\n\t" \ |
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| 41 | "movl %%edx,%%edi\n\t" \ |
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| 42 | "xorl %%eax,%%eax\n\t" \ |
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| 43 | "cpuid" \ |
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| 44 | : "=S" (low), "=D" (high) \ |
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| 239 | giacomo | 45 | :: "ebx", "ecx") |
| 120 | giacomo | 46 | |
| 47 | #define rdtscll(val) \ |
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| 239 | giacomo | 48 | __asm__ __volatile__("xorl %%eax,%%eax\n\t" \ |
| 242 | giacomo | 49 | "cpuid\n\t" \ |
| 50 | "rdtsc\n\t" \ |
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| 51 | "pushl %%eax\n\t" \ |
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| 52 | "pushl %%edx\n\t" \ |
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| 53 | "xorl %%eax,%%eax\n\t" \ |
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| 54 | "cpuid\n\t" \ |
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| 55 | "popl %%edx\n\t" \ |
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| 56 | "popl %%eax\n\t" \ |
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| 57 | : "=A" (val) \ |
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| 239 | giacomo | 58 | :: "ebx","ecx") |
| 120 | giacomo | 59 | |
| 299 | giacomo | 60 | #define rdmsr(msr,val1,val2) \ |
| 61 | __asm__ __volatile__("rdmsr" \ |
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| 62 | : "=a" (val1), "=d" (val2) \ |
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| 63 | : "c" (msr)) |
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| 64 | |||
| 65 | #define wrmsr(msr,val1,val2) \ |
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| 66 | __asm__ __volatile__("wrmsr" \ |
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| 67 | : /* no outputs */ \ |
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| 68 | : "c" (msr), "a" (val1), "d" (val2)) |
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| 69 | |||
| 120 | giacomo | 70 | /* RTC */ |
| 71 | |||
| 72 | #define RTC_PORT(x) (0x70 + (x)) |
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| 73 | |||
| 74 | #define CMOS_READ(addr,val) \ |
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| 75 | { \ |
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| 76 | outp(RTC_PORT(0),(addr)); \ |
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| 77 | val = inp(RTC_PORT(1)); \ |
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| 78 | } |
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| 79 | |||
| 80 | #define CMOS_WRITE(addr,val) \ |
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| 81 | { \ |
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| 82 | outp(RTC_PORT(0),(addr)); \ |
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| 83 | outp(RTC_PORT(1),(val)); \ |
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| 84 | } |
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| 85 | |||
| 86 | #define RTC_IRQ 8 |
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| 87 | |||
| 131 | giacomo | 88 | void ll_init_advtimer(void); |
| 89 | void ll_restore_CMOS(void); |
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| 90 | |||
| 120 | giacomo | 91 | END_DEF |
| 92 | #endif |