1999/0504/alphapc/fdc37c93x.c (diff list | history)

1999/0503/sys/src/9/alphapc/fdc37c93x.c:5,7 – 1999/0504/sys/src/9/alphapc/fdc37c93x.c:5,61 (short | long | prev | next)
1999/0503		#include "fns.h" #include "io.h"
1999/0504		/* * 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, }; 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, 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, 0x70); outb(config, 0x06); outb(config, 0x74); outb(config, 0x02); outb(config, 0x30); outb(config, 0x01); outb(config, 0xAA); }