1*95e1ffb1Schristos /* $NetBSD: fdreg.h,v 1.4 2005/12/11 12:16:39 christos Exp $ */ 2459f2585Sur /* $OpenBSD: fdreg.h,v 1.1.1.1 1996/06/24 09:07:19 pefo Exp $ */ 3459f2585Sur /* NetBSD: fdreg.h,v 1.8 1995/06/28 04:30:57 cgd Exp */ 4459f2585Sur 5459f2585Sur /*- 6459f2585Sur * Copyright (c) 1991 The Regents of the University of California. 7459f2585Sur * All rights reserved. 8459f2585Sur * 9459f2585Sur * Redistribution and use in source and binary forms, with or without 10459f2585Sur * modification, are permitted provided that the following conditions 11459f2585Sur * are met: 12459f2585Sur * 1. Redistributions of source code must retain the above copyright 13459f2585Sur * notice, this list of conditions and the following disclaimer. 14459f2585Sur * 2. Redistributions in binary form must reproduce the above copyright 15459f2585Sur * notice, this list of conditions and the following disclaimer in the 16459f2585Sur * documentation and/or other materials provided with the distribution. 17aad01611Sagc * 3. Neither the name of the University nor the names of its contributors 18459f2585Sur * may be used to endorse or promote products derived from this software 19459f2585Sur * without specific prior written permission. 20459f2585Sur * 21459f2585Sur * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22459f2585Sur * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23459f2585Sur * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24459f2585Sur * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25459f2585Sur * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26459f2585Sur * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27459f2585Sur * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28459f2585Sur * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29459f2585Sur * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30459f2585Sur * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31459f2585Sur * SUCH DAMAGE. 32459f2585Sur * 33459f2585Sur * @(#)fdreg.h 7.1 (Berkeley) 5/9/91 34459f2585Sur */ 35459f2585Sur 36459f2585Sur /* 37459f2585Sur * AT floppy controller registers and bitfields 38459f2585Sur */ 39459f2585Sur 40459f2585Sur /* uses NEC765 controller */ 41459f2585Sur #include <dev/ic/nec765reg.h> 42459f2585Sur 43459f2585Sur /* registers */ 4494bba098Ssoda #define FDOUT 0 /* Digital Output Register (W) */ 45459f2585Sur #define FDO_FDSEL 0x03 /* floppy device select */ 46459f2585Sur #define FDO_FRST 0x04 /* floppy controller reset */ 47459f2585Sur #define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */ 48459f2585Sur #define FDO_MOEN(n) ((1 << n) * 0x10) /* motor enable */ 49459f2585Sur 5094bba098Ssoda #define FDSTS 2 /* NEC 765 Main Status Register (R) */ 5194bba098Ssoda #define FDDATA 3 /* NEC 765 Data Register (R/W) */ 52459f2585Sur 5394bba098Ssoda #define FDCTL 5 /* Control Register (W) */ 54459f2585Sur #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 55459f2585Sur #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 56459f2585Sur #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 57459f2585Sur #define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ 58459f2585Sur 5994bba098Ssoda #define FDIN 5 /* Digital Input Register (R) */ 60459f2585Sur #define FDI_DCHG 0x80 /* diskette has been changed */ 61459f2585Sur 62459f2585Sur #define FDC_BSIZE 512 6394bba098Ssoda #if 0 64459f2585Sur #define FDC_NPORT 8 6594bba098Ssoda #endif 66