1 /* $NetBSD: hdfdreg.h,v 1.8 2023/01/06 10:28:28 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 1991 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)fdreg.h 7.1 (Berkeley) 5/9/91 32 */ 33 34 /* 35 * AT floppy controller registers and bitfields 36 */ 37 38 /* uses NEC765 controller */ 39 #include <dev/ic/nec765reg.h> 40 41 /* 42 * The FDC in the Hades does not like multi-track mode! 43 */ 44 #undef NE7CMD_WRITE 45 #undef NE7CMD_READ 46 #define NE7CMD_WRITE 0x45 47 #define NE7CMD_READ 0x66 48 49 #define NE7CMD_CONFIGURE 0x13 50 #define NE7CMD_LOCK 0x94 51 52 #define FD_IOBASE 0xfff00080 53 #define FD_IOSIZE 0x80 54 55 /* registers */ 56 #define fdout 0x40 /* Digital Output Register (W) */ 57 #define FDO_FDSEL 0x03 /* floppy device select */ 58 #define FDO_FRST 0x04 /* floppy controller reset */ 59 #define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */ 60 #define FDO_MOEN(n) ((1 << n) * 0x10) /* motor enable */ 61 62 #define fdsts 0x00 /* NEC 765 Main Status Register (R) */ 63 #define fddata 0x02 /* NEC 765 Data Register (R/W) */ 64 65 #define fdctl 0x60 /* Control Register (W) */ 66 #define FDC_500KBPS 0x00 /* 500KBPS MFM drive transfer rate */ 67 #define FDC_300KBPS 0x01 /* 300KBPS MFM drive transfer rate */ 68 #define FDC_250KBPS 0x02 /* 250KBPS MFM drive transfer rate */ 69 #define FDC_125KBPS 0x03 /* 125KBPS FM drive transfer rate */ 70 71 #define fdin 0x60 /* Digital Input Register (R) */ 72 #define FDI_DCHG 0x80 /* diskette has been changed */ 73 74 #define FDC_BSIZE 512 75 #define FDC_MAXIOSIZE PAGE_SIZE /* XXX should be MAXBSIZE */ 76 77 /* 78 * Copyright (C) 1992-1994 by Joerg Wunsch, Dresden 79 * All rights reserved. 80 * 81 * Redistribution and use in source and binary forms, with or without 82 * modification, are permitted provided that the following conditions 83 * are met: 84 * 1. Redistributions of source code must retain the above copyright 85 * notice, this list of conditions and the following disclaimer. 86 * 2. Redistributions in binary form must reproduce the above copyright 87 * notice, this list of conditions and the following disclaimer in the 88 * documentation and/or other materials provided with the distribution. 89 * 90 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY 91 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 92 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 93 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE 94 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 95 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 96 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 97 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 98 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 99 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 100 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 101 * DAMAGE. 102 * 103 * From: FreeBSD: Id: ioctl_fd.h,v 1.7 1994/10/30 19:17:39 joerg Exp 104 */ 105 106 #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */ 107 /* 2.88 MB drives */ 108 109 #ifndef ASSEMBLER 110 struct ne7_fd_formb { 111 int cyl, head; 112 int transfer_rate; /* fdreg.h: FDC_???KBPS */ 113 114 union { 115 struct fd_form_data { 116 /* 117 * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS 118 * it is hardware-dependent since it exactly 119 * matches the byte sequence to write to FDC 120 * during its `format track' operation 121 */ 122 u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */ 123 u_char nsecs; /* must be <= FD_MAX_NSEC */ 124 u_char gaplen; /* GAP 3 length; usually 84 */ 125 u_char fillbyte; /* usually 0xf6 */ 126 struct fd_idfield_data { 127 /* 128 * data to write into id fields; 129 * for obscure formats, they mustn't match 130 * the real values (but mostly do) 131 */ 132 u_char cylno; /* 0 thru 79 (or 39) */ 133 u_char headno; /* 0, or 1 */ 134 u_char secno; /* starting at 1! */ 135 u_char secsize; /* usually 2 */ 136 } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */ 137 } structured; 138 u_char raw[1]; /* to have continuous indexed access */ 139 } format_info; 140 }; 141 #endif /* ASSEMBLER */ 142 143 /* make life easier */ 144 # define fd_formb_secshift format_info.structured.secshift 145 # define fd_formb_nsecs format_info.structured.nsecs 146 # define fd_formb_gaplen format_info.structured.gaplen 147 # define fd_formb_fillbyte format_info.structured.fillbyte 148 /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */ 149 # define fd_formb_cylno(i) format_info.structured.idfields[i].cylno 150 # define fd_formb_headno(i) format_info.structured.idfields[i].headno 151 # define fd_formb_secno(i) format_info.structured.idfields[i].secno 152 # define fd_formb_secsize(i) format_info.structured.idfields[i].secsize 153
Indexes created Sun Sep 21 19:09:51 GMT 2025