fdvar.h revision 1.15
1 1.15 wiz /* $NetBSD: fdvar.h,v 1.15 2011/06/30 20:09:36 wiz 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 * 19 1.7 pk * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.7 pk * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.7 pk * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.7 pk * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.7 pk * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.7 pk * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.7 pk * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.7 pk * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.7 pk * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.7 pk * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.7 pk * POSSIBILITY OF SUCH DAMAGE. 30 1.2 pk */ 31 1.2 pk 32 1.6 pk #define FD_BSIZE(fd) (128 * (1 << fd->sc_type->secsize)) 33 1.1 pk #define FDC_MAXIOSIZE NBPG /* XXX should be MAXBSIZE */ 34 1.1 pk 35 1.1 pk #define FDC_NSTATUS 10 36 1.1 pk 37 1.4 mycroft #ifndef _LOCORE 38 1.1 pk struct fdcio { 39 1.9 pk bus_space_handle_t fdcio_handle; 40 1.1 pk /* 41 1.1 pk * 82072 (sun4c) and 82077 (sun4m) controllers have different 42 1.9 pk * register layout; so we cache offsets to the registers here. 43 1.1 pk */ 44 1.9 pk u_int fdcio_reg_msr; 45 1.9 pk u_int fdcio_reg_fifo; 46 1.9 pk u_int fdcio_reg_dor; /* 82077 only */ 47 1.12 pk u_int fdcio_reg_dir; /* 82077 only */ 48 1.1 pk 49 1.1 pk /* 50 1.1 pk * Interrupt state. 51 1.1 pk */ 52 1.10 pk int fdcio_itask; 53 1.10 pk int fdcio_istatus; 54 1.1 pk 55 1.1 pk /* 56 1.1 pk * IO state. 57 1.1 pk */ 58 1.11 wiz char *fdcio_data; /* pseudo-DMA data */ 59 1.11 wiz int fdcio_tc; /* pseudo-DMA Terminal Count */ 60 1.1 pk u_char fdcio_status[FDC_NSTATUS]; /* copy of registers */ 61 1.1 pk int fdcio_nstat; /* # of valid status bytes */ 62 1.3 pk 63 1.3 pk /* 64 1.3 pk * Statictics. 65 1.3 pk */ 66 1.3 pk struct evcnt fdcio_intrcnt; 67 1.1 pk }; 68 1.4 mycroft #endif /* _LOCORE */ 69 1.1 pk 70 1.10 pk /* itask values */ 71 1.10 pk #define FDC_ITASK_NONE 0 /* No HW interrupt expected */ 72 1.10 pk #define FDC_ITASK_SENSEI 1 /* Do SENSEI on next HW interrupt */ 73 1.10 pk #define FDC_ITASK_DMA 2 /* Do Pseudo-DMA */ 74 1.10 pk #define FDC_ITASK_RESULT 3 /* Pick up command results */ 75 1.10 pk 76 1.10 pk /* istatus values */ 77 1.10 pk #define FDC_ISTATUS_NONE 0 /* No status available */ 78 1.10 pk #define FDC_ISTATUS_SPURIOUS 1 /* Spurious HW interrupt detected */ 79 1.10 pk #define FDC_ISTATUS_ERROR 2 /* Operation completed abnormally */ 80 1.10 pk #define FDC_ISTATUS_DONE 3 /* Operation completed normally */ 81 1.1 pk 82 1.1 pk 83 1.5 pk #define FD_MAX_NSEC 36 /* highest known number of spt - allow for */ 84 1.5 pk /* 2.88 MB drives */ 85 1.5 pk 86 1.5 pk #ifndef _LOCORE 87 1.5 pk struct ne7_fd_formb { 88 1.5 pk int cyl, head; 89 1.5 pk int transfer_rate; /* fdreg.h: FDC_???KBPS */ 90 1.5 pk 91 1.5 pk union { 92 1.5 pk struct fd_form_data { 93 1.5 pk /* 94 1.5 pk * DO NOT CHANGE THE LAYOUT OF THIS STRUCTS 95 1.15 wiz * it is hardware-dependent since it exactly 96 1.5 pk * matches the byte sequence to write to FDC 97 1.5 pk * during its `format track' operation 98 1.5 pk */ 99 1.5 pk u_char secshift; /* 0 -> 128, ...; usually 2 -> 512 */ 100 1.5 pk u_char nsecs; /* must be <= FD_MAX_NSEC */ 101 1.5 pk u_char gaplen; /* GAP 3 length; usually 84 */ 102 1.5 pk u_char fillbyte; /* usually 0xf6 */ 103 1.5 pk struct fd_idfield_data { 104 1.5 pk /* 105 1.5 pk * data to write into id fields; 106 1.5 pk * for obscure formats, they mustn't match 107 1.5 pk * the real values (but mostly do) 108 1.5 pk */ 109 1.5 pk u_char cylno; /* 0 thru 79 (or 39) */ 110 1.5 pk u_char headno; /* 0, or 1 */ 111 1.5 pk u_char secno; /* starting at 1! */ 112 1.5 pk u_char secsize; /* usually 2 */ 113 1.5 pk } idfields[FD_MAX_NSEC]; /* 0 <= idx < nsecs used */ 114 1.5 pk } structured; 115 1.5 pk u_char raw[1]; /* to have continuous indexed access */ 116 1.5 pk } format_info; 117 1.5 pk }; 118 1.5 pk 119 1.5 pk /* make life easier */ 120 1.5 pk #define fd_formb_secshift format_info.structured.secshift 121 1.5 pk #define fd_formb_nsecs format_info.structured.nsecs 122 1.5 pk #define fd_formb_gaplen format_info.structured.gaplen 123 1.5 pk #define fd_formb_fillbyte format_info.structured.fillbyte 124 1.5 pk /* these data must be filled in for(i = 0; i < fd_formb_nsecs; i++) */ 125 1.5 pk #define fd_formb_cylno(i) format_info.structured.idfields[i].cylno 126 1.5 pk #define fd_formb_headno(i) format_info.structured.idfields[i].headno 127 1.5 pk #define fd_formb_secno(i) format_info.structured.idfields[i].secno 128 1.5 pk #define fd_formb_secsize(i) format_info.structured.idfields[i].secsize 129 1.5 pk #endif /* _LOCORE */ 130
Indexes created Tue Sep 23 13:09:54 GMT 2025