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Use /dev/port to make Super IO functions work on Linux

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This commit is contained in:
Adam Honse
2020-02-11 20:25:28 -06:00
parent 4672d4a686
commit 3948e74711
1 changed files with 24 additions and 7 deletions
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31
super_io/super_io.cpp
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@@ -14,7 +14,11 @@
#pragma comment(lib, "inpout32.lib")
#else
#include <sys/io.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
int dev_port_fd;
#endif
/******************************************************************************************\
@@ -31,8 +35,13 @@ void superio_enter(int ioreg)
Out32(ioreg, 0x87);
Out32(ioreg, 0x87);
#else
outb_p(0x87, ioreg);
outb_p(0x87, ioreg);
unsigned char temp = 0x87;
dev_port_fd = open("/dev/port", O_RDWR, "rw");
lseek(dev_port_fd, ioreg, SEEK_CUR);
write(dev_port_fd, &temp, 1);
lseek(dev_port_fd, ioreg, SEEK_CUR);
write(dev_port_fd, &temp, 1);
close(dev_port_fd);
#endif
}
@@ -51,8 +60,11 @@ void superio_outb(int ioreg, int reg, int val)
Out32(ioreg, reg);
Out32(ioreg + 1, val);
#else
outb_p(reg, ioreg);
outb_p(val, ioreg + 1);
dev_port_fd = open("/dev/port", O_RDWR, "rw");
lseek(dev_port_fd, ioreg, SEEK_CUR);
write(dev_port_fd, &reg, 1);
write(dev_port_fd, &val, 1);
close(dev_port_fd);
#endif
}
@@ -71,7 +83,12 @@ int superio_inb(int ioreg, int reg)
Out32(ioreg, reg);
return Inp32(ioreg + 1);
#else
outb_p(reg, ioreg);
return inb_p(ioreg + 1);
unsigned char temp;
dev_port_fd = open("/dev/port", O_RDWR, "rw");
lseek(dev_port_fd, ioreg, SEEK_CUR);
write(dev_port_fd, &reg, 1);
read(dev_port_fd, &temp, 1);
close(dev_port_fd);
return((int)temp);
#endif
}