[c] watchdog da win a linux...

[ally]

...come da titolo avrei la necessità di convertire questo piccolo programma da win a linux...premetto che non so nulla di c...vorresi solo capire come riscrivere e ricompilare tale codice su una macchina linux al fine di attivare il watchdog hardware presente nella motherboard...il codice è stato trovato nel manuale della scheda madre...

//============================================
//DOS Watchdog sample program
//Please compile with Turbo C 3.0 to utilized the program
//============================================
int main()
{
//Initialized the WDT program
outp(0x2e,0x87);
outp(0x2e,0x01);
outp(0x2e,0x55);
outp(0x2e,0x55);
//Setting Logical Device Number to 0x07
outp(0x2e,0x07);
outp(0x2f,0x07);
//Set Timer Value(0x73 is LSB while 0x74 is MSB)
outp(0x2e,0x73);
outp(0x2f,0x14);//set to 20 sec (0x14)
//Set Timer Unit to Second/Minute(Bit 7 equal to 1 is second/0 is minute)
//Enable WDT (Bit 6 equal to 1 is enable/0 is disable)
outp(0x2e,0x72);
outp(0x2f,0xC0);//The unit is set as second
return 0;
}

...grazie ciao...

[ally]

// Copyright 2011, Kees Cook <[email protected]>, License: GPLv2 */
#include <unistd.h>
#include <stdio.h>
#include <sys/io.h>

int main()
{
printf("via\n");


/* access to watchdog port */
if (ioperm(0x2e, 0x2e, 1) < 0) {
perror("0x2e");
return 1;
}

/* access to watchdog port */
if (ioperm(0x2f, 0x2f, 1) < 0) {
perror("0x2f");
return 2;
}

sleep(1);
printf("leggo \n");
printf("%d\n",inb(0x2e));
printf("scrivo 87\n");
//outb(0x2e,0x87);
outb(0x87,0x2e);
printf("leggo \n");
printf("%d\n",inb(0x2e));
//outb(0x2e,0x01);
outb(0x01,0x2e);
printf("riscritto\n");
//outb(0x2e,0x55);
outb(0x55,0x2e);
printf("4\n");
outb(0x2e,0x55);
//Setting Logical Device Number to 0x07
//outb(0x2e,0x07);
printf("5\n");
outb(0x07,0x2e);
//outb(0x2f,0x07);
printf("6\n");
outb(0x07,0x2f);
//Set Timer Value(0x73 is LSB while 0x74 is MSB)
//outb(0x2e,0x73);
printf("7\n");
outb(0x73,0x2e);
//outb(0x2f,0x14);//set to 20 sec (0x14)
printf("8\n");
outb(0x14,0x2e);
//Set Timer Unit to Second/Minute(Bit 7 equal to 1 is second/0 is minute)
//Enable WDT (Bit 6 equal to 1 is enable/0 is disable)
//outb(0x2e,0x72);
printf("9\n");
outb(0x72,0x2e);
//outb(0x2f,0xC0);//The unit is set as second
printf("10\n");
outb(0xc0,0x2f);

return 0;
}

...dopo diverse imprecazioni...l'ioperm attiva la possibilità di scrivere nelle locazioni...outp diventa outb ma con argomenti rovesciati...ora non ho la piu' pallida idea di come testarlo...compila e parte ma non saprei dire se stia facendo il suo dovere...