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/*-----------------------------------------*\
| super_io.cpp |
| |
| Functions for interfacing with Super-IO |
| |
| Adam Honse (CalcProgrammer1) 2/11/2020 |
\*-----------------------------------------*/
#include "super_io.h"
#ifdef WIN32
#include <Windows.h>
#include "OlsApi.h"
#else
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
int dev_port_fd;
#endif
/******************************************************************************************\
* *
* superio_enter *
* *
* Put the Super IO chip into Extended Function Mode *
* *
\******************************************************************************************/
void superio_enter(int ioreg)
{
#ifdef WIN32
WriteIoPortByte(ioreg, 0x87);
WriteIoPortByte(ioreg, 0x87);
#else
unsigned char temp = 0x87;
dev_port_fd = open("/dev/port", O_RDWR, "rw");
if (dev_port_fd >= 0)
{
lseek(dev_port_fd, ioreg, SEEK_SET);
write(dev_port_fd, &temp, 1);
lseek(dev_port_fd, ioreg, SEEK_SET);
write(dev_port_fd, &temp, 1);
close(dev_port_fd);
}
#endif
}
/******************************************************************************************\
* *
* superio_outb *
* *
* Write a byte to the Super IO configuration register *
* *
\******************************************************************************************/
void superio_outb(int ioreg, int reg, int val)
{
#ifdef WIN32
WriteIoPortByte(ioreg, reg);
WriteIoPortByte(ioreg + 1, val);
#else
dev_port_fd = open("/dev/port", O_RDWR, "rw");
if (dev_port_fd >= 0)
{
lseek(dev_port_fd, ioreg, SEEK_SET);
write(dev_port_fd, &reg, 1);
write(dev_port_fd, &val, 1);
close(dev_port_fd);
}
#endif
}
/******************************************************************************************\
* *
* superio_inb *
* *
* Read a byte to the Super IO configuration register *
* *
\******************************************************************************************/
int superio_inb(int ioreg, int reg)
{
#ifdef WIN32
WriteIoPortByte(ioreg, reg);
return ReadIoPortByte(ioreg + 1);
#else
unsigned char temp = 0;
dev_port_fd = open("/dev/port", O_RDWR, "rw");
if (dev_port_fd >= 0)
{
lseek(dev_port_fd, ioreg, SEEK_SET);
write(dev_port_fd, &reg, 1);
read(dev_port_fd, &temp, 1);
close(dev_port_fd);
return((int)temp);
}
else
{
return -1;
}
#endif
}