1991/0823/pc/devfloppy.c (diff list | history)

1991/0811/sys/src/9/pc/devfloppy.c:31,42 – 1991/0823/sys/src/9/pc/devfloppy.c:31,36 (short | long | prev | next)
1991/0727
1991/0728		DMAchan= 2, /* floppy dma channel */
1991/0727		/* sector size encodings */ S128= 0, S256= 1, S512= 2, S1024= 3,                  /* status 0 byte */ Drivemask= 3<<0, Seekend= 1<<5,
1991/0811/sys/src/9/pc/devfloppy.c:45,51 – 1991/0823/sys/src/9/pc/devfloppy.c:39,44
1991/0728		/* file types */ Qdir= 0,
1991/0802		Qdata= (1<<2), Qstruct= (2<<2), Qmask= (3<<2),
1991/0727		};
1991/0811/sys/src/9/pc/devfloppy.c:163,176 – 1991/0823/sys/src/9/pc/devfloppy.c:156,165
1991/0731		static void floppyintr(Ureg*);
1991/0802		Dirtab floppydir[]={ "fd0data", {Qdata + 0}, 0, 0600, "fd0struct", {Qstruct + 0}, 8, 0600, "fd1data", {Qdata + 1}, 0, 0600, "fd1struct", {Qstruct + 1}, 8, 0600, "fd2data", {Qdata + 2}, 0, 0600, "fd2struct", {Qstruct + 2}, 8, 0600, "fd3data", {Qdata + 3}, 0, 0600, "fd3struct", {Qstruct + 3}, 8, 0600,
1991/0823		"fd0disk", {Qdata + 0}, 0, 0600, "fd1disk", {Qdata + 1}, 0, 0600, "fd2disk", {Qdata + 2}, 0, 0600, "fd3disk", {Qdata + 3}, 0, 0600,
1991/0802		};
1991/0811		#define NFDIR 2 /* directory entries/drive */
1991/0731
1991/0811/sys/src/9/pc/devfloppy.c:337,351 – 1991/0823/sys/src/9/pc/devfloppy.c:326,331
1991/0809		memmove(aa+rv, dp->ccache + (sec-1)*dp->t->bytes, len);
1991/0802		} break; case Qstruct: if (n < 2*sizeof(ulong)) error(Ebadarg); if (c->offset >= 2*sizeof(ulong)) return 0; rv = 2*sizeof(ulong); ul2user((uchar*)a, dp->t->cap); ul2user((uchar*)a+sizeof(ulong), dp->t->bytes); break; default: panic("floppyread: bad qid");
1991/0731		}
1991/0811/sys/src/9/pc/devfloppy.c:369,377 – 1991/0823/sys/src/9/pc/devfloppy.c:349,354
1991/0802		break; } break; case Qstruct: error(Eperm); break; default: panic("floppywrite: bad qid");
1991/0731		}
1991/0811/sys/src/9/pc/devfloppy.c:733,739 – 1991/0823/sys/src/9/pc/devfloppy.c:710,716
1991/0731		if(floppyseek(dp) < 0) errors("seeking floppy");
1991/0727
1991/0731		print("tcyl %d, thead %d, tsec %d, addr %lux, n %d\n",
1991/0823		/*print("tcyl %d, thead %d, tsec %d, addr %lux, n %d\n",
1991/0727		dp->tcyl, dp->thead, dp->tsec, addr, n);/**/ /*
1991/0811/sys/src/9/pc/devfloppy.c:797,803 – 1991/0823/sys/src/9/pc/devfloppy.c:774,780
1991/0731		static void
1991/0727		floppyintr(Ureg *ur) {
1991/0806		print("floppy intr\n");
1991/0823		/*print("floppy intr\n");/**/
1991/0727		floppy.intr = 1;
1991/0731		wakeup(&floppy.r);
1991/0727		}