1992/1218/pc/devfloppy.c (diff list | history)

1992/1217/sys/src/9/pc/devfloppy.c:245,258 – 1992/1218/sys/src/9/pc/devfloppy.c:245,262 (short | long | prev | next)
1991/0731		Drive *dp;
1991/0802		Type *t;
1992/1006		uchar equip;
1992/1218		ulong maxtsize;
1991/0731
1991/0802		/* * init dependent parameters */
1992/1218		maxtsize = 0;
1991/0802		for(t = floppytype; t < &floppytype[NTYPES]; t++){ t->cap = t->bytes * t->heads * t->sectors * t->tracks; t->bcode = b2c[t->bytes/128];
1991/0924		t->tsize = t->bytes * t->sectors;
1992/1218		if(maxtsize < t->tsize) maxtsize = t->tsize;
1991/0802		} /*
1992/1217/sys/src/9/pc/devfloppy.c:277,283 – 1992/1218/sys/src/9/pc/devfloppy.c:281,287
1992/1006		dp->dt = T1440kb; setdef(dp); dp->cyl = -1; /* because we don't know */
1992/1113		dp->cache = (uchar*)xspanalloc(dp->t->tsize, BY2PG, 64*1024);
1992/1218		dp->cache = (uchar*)xspanalloc(maxtsize, BY2PG, 64*1024);
1991/0924		dp->ccyl = -1;
1991/0925		dp->vers = 1;
1991/0731		}
1992/1217/sys/src/9/pc/devfloppy.c:612,617 – 1992/1218/sys/src/9/pc/devfloppy.c:616,622
1991/0921		tsleep(&dp->r, return0, 0, 750);
1991/0924
1992/1217		/* clear any pending interrupts */
1992/1218		setvec(Floppyvec, floppyintr);
1992/1217		floppysense(); }
1992/1217/sys/src/9/pc/devfloppy.c:780,787 – 1992/1218/sys/src/9/pc/devfloppy.c:785,794
1991/0924		floppywait(void)
1991/0731		{
1992/1217		tsleep(&fl.r, cmddone, 0, 5000);
1992/1216		if(!cmddone(0))
1992/1218		if(!cmddone(0)){
1992/1216		floppyintr(0);
1992/1218		fl.confused = 1; }
1991/0731		} /*
1992/1217/sys/src/9/pc/devfloppy.c:842,849 – 1992/1218/sys/src/9/pc/devfloppy.c:849,857
1992/1217		fl.ncmd = 1;
1991/0924		fl.cmd[0] = 0; outb(Pdor, 0);
1991/0727		delay(1);
1992/1218		delay(10);
1991/0924		outb(Pdor, Fintena|Fena);
1992/1218		delay(10);
1991/0727		spllo();
1991/0924		fl.motor = 0; fl.confused = 0;