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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
/*
* SMC FDC37C93x Plug and Play Compatible Ultra I/O Controller.
*/
enum { /* I/O Ports */
Config = 0x370, /* could also be 0x3F0 */
Index = 0,
Data = 1,
};
static int fddregs[] = {
0x30,
0x60, 0x61,
0x70,
0x74,
0xF0,
0xF1,
0xF2,
0xF4,
0xF5,
0,
};
#define OUTB(p, d) outb(p, d); microdelay(10);
void
fdc37c93xdump(void)
{
int config, i, x;
config = Config;
OUTB(config, 0x55);
OUTB(config, 0x55);
OUTB(config+Index, 0x20);
x = inb(config+Data);
print("fdc37c93x: Device ID 0x%2.2uX\n", x);
OUTB(config+Index, 0x22);
x = inb(config+Data);
print("fdc37c93x: Power/Control 0x%2.2uX\n", x);
OUTB(config+Index, 0x07);
OUTB(config+Data, 0);
for(i = 0; fddregs[i]; i++){
OUTB(config+Index, fddregs[i]);
x = inb(config+Data);
print("FDD%2.2uX: 0x%2.2uX\n", fddregs[i], x);
}
OUTB(config+Index, 0x70);
OUTB(config+Data, 0x06);
OUTB(config+Index, 0x74);
OUTB(config+Data, 0x02);
OUTB(config+Index, 0x30);
OUTB(config+Data, 0x01);
OUTB(config, 0xAA);
}
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