fdvar.h revision 1.8
1 1.8 pk /* $NetBSD: fdvar.h,v 1.8 1998/09/05 15:42:42 pk Exp $ */ 2 1.7 pk 3 1.7 pk /*- 4 1.7 pk * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.7 pk * All rights reserved. 6 1.2 pk * 7 1.7 pk * This code is derived from software contributed to The NetBSD Foundation 8 1.8 pk * by Paul Kranenburg. 9 1.2 pk * 10 1.2 pk * Redistribution and use in source and binary forms, with or without 11 1.2 pk * modification, are permitted provided that the following conditions 12 1.2 pk * are met: 13 1.2 pk * 1. Redistributions of source code must retain the above copyright 14 1.2 pk * notice, this list of conditions and the following disclaimer. 15 1.2 pk * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 pk * notice, this list of conditions and the following disclaimer in the 17 1.2 pk * documentation and/or other materials provided with the distribution. 18 1.2 pk * 3. All advertising materials mentioning features or use of this software 19 1.2 pk * must display the following acknowledgement: 20 1.7 pk * This product includes software developed by the NetBSD 21 1.7 pk * Foundation, Inc. and its contributors. 22 1.7 pk * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.7 pk * contributors may be used to endorse or promote products derived 24 1.7 pk * from this software without specific prior written permission. 25 1.2 pk * 26 1.7 pk * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.7 pk * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.7 pk * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.7 pk * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.7 pk * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.7 pk * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.7 pk * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.7 pk * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.7 pk * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.7 pk * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.7 pk * POSSIBILITY OF SUCH DAMAGE. 37 1.2 pk */ 38 1.2 pk 39 1.6 pk #define FD_BSIZE(fd) (128 * (1 << fd->sc_type->secsize)) 40 1.1 pk #define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */ 41 1.1 pk 42 1.1 pk #define FDC_NSTATUS 10 43 1.1 pk 44 1.4 mycroft #ifndef _LOCORE 45 1.1 pk struct fdcio { 46 1.1 pk /* 47 1.1 pk * 82072 (sun4c) and 82077 (sun4m) controllers have different 48 1.1 pk * register layout; so we cache some here. 49 1.1 pk */ 50 1.1 pk volatile u_int8_t *fdcio_reg_msr; 51 1.1 pk volatile u_int8_t *fdcio_reg_fifo; 52 1.1 pk volatile u_int8_t *fdcio_reg_dor; /* 82077 only */ 53 1.1 pk 54 1.1 pk /* 55 1.1 pk * Interrupt state. 56 1.1 pk */ 57 1.1 pk int fdcio_istate; 58 1.1 pk 59 1.1 pk /* 60 1.1 pk * IO state. 61 1.1 pk */ 62 1.1 pk char *fdcio_data; /* pseudo-dma data */ 63 1.1 pk int fdcio_tc; /* pseudo-dma Terminal Count */ 64 1.1 pk u_char fdcio_status[FDC_NSTATUS]; /* copy of registers */ 65 1.1 pk int fdcio_nstat; /* # of valid status bytes */ 66 1.3 pk 67 1.3 pk /* 68 1.3 pk * Statictics. 69 1.3 pk */ 70 1.3 pk struct evcnt fdcio_intrcnt; 71 1.1 pk }; 72 1.4 mycroft #endif /* _LOCORE */ 73 1.1 pk 74 1.1 pk /* istate values */ 75 1.1 pk #define ISTATE_IDLE 0 /* No HW interrupt expected */ 76 1.1 pk #define ISTATE_SPURIOUS 1 /* Spurious HW interrupt detected */ 77 1.1 pk #define ISTATE_SENSEI 2 /* Do SENSEI on next HW interrupt */ 78 1.1 pk #define ISTATE_DMA 3 /* Pseudo-DMA in progress */ 79 1.5 pk #define ISTATE_DONE 4 /* Interrupt processing complete */ 80 1.1 pk 81 1.1 pk 82 1.5 pk #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */ 83 1.5 pk /* 2.88 MB drives */ 84 1.5 pk 85 1.5 pk #ifndef _LOCORE 86 1.5 pk struct ne7_fd_formb { 87 1.5 pk int cyl, head; 88 1.5 pk int transfer_rate; /* fdreg.h: FDC_???KBPS */ 89 1.5 pk 90 1.5 pk union { 91 1.5 pk struct fd_form_data { 92 1.5 pk /* 93 1.5 pk * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS 94 1.5 pk * it is hardware-dependant since it exactly 95 1.5 pk * matches the byte sequence to write to FDC 96 1.5 pk * during its `format track' operation 97 1.5 pk */ 98 1.5 pk u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */ 99 1.5 pk u_char nsecs; /* must be <= FD_MAX_NSEC */ 100 1.5 pk u_char gaplen; /* GAP 3 length; usually 84 */ 101 1.5 pk u_char fillbyte; /* usually 0xf6 */ 102 1.5 pk struct fd_idfield_data { 103 1.5 pk /* 104 1.5 pk * data to write into id fields; 105 1.5 pk * for obscure formats, they mustn't match 106 1.5 pk * the real values (but mostly do) 107 1.5 pk */ 108 1.5 pk u_char cylno; /* 0 thru 79 (or 39) */ 109 1.5 pk u_char headno; /* 0, or 1 */ 110 1.5 pk u_char secno; /* starting at 1! */ 111 1.5 pk u_char secsize; /* usually 2 */ 112 1.5 pk } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */ 113 1.5 pk } structured; 114 1.5 pk u_char raw[1]; /* to have continuous indexed access */ 115 1.5 pk } format_info; 116 1.5 pk }; 117 1.5 pk 118 1.5 pk /* make life easier */ 119 1.5 pk #define fd_formb_secshift format_info.structured.secshift 120 1.5 pk #define fd_formb_nsecs format_info.structured.nsecs 121 1.5 pk #define fd_formb_gaplen format_info.structured.gaplen 122 1.5 pk #define fd_formb_fillbyte format_info.structured.fillbyte 123 1.5 pk /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */ 124 1.5 pk #define fd_formb_cylno(i) format_info.structured.idfields[i].cylno 125 1.5 pk #define fd_formb_headno(i) format_info.structured.idfields[i].headno 126 1.5 pk #define fd_formb_secno(i) format_info.structured.idfields[i].secno 127 1.5 pk #define fd_formb_secsize(i) format_info.structured.idfields[i].secsize 128 1.5 pk #endif /* _LOCORE */ 129
Indexes created Tue Sep 23 14:10:03 GMT 2025