sys/dev/isa/fdcvar.h

   1 /*      $NetBSD: fdcvar.h,v 1.9 2008/03/16 00:58:56 cube Exp $  */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Charles M. Hannum.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*-
  33  * Copyright (c) 1990 The Regents of the University of California.
  34  * All rights reserved.
  35  *
  36  * This code is derived from software contributed to Berkeley by
  37  * Don Ahn.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  * 1. Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  * 2. Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in the
  46  *    documentation and/or other materials provided with the distribution.
  47  * 3. Neither the name of the University nor the names of its contributors
  48  *    may be used to endorse or promote products derived from this software
  49  *    without specific prior written permission.
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  53  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  54  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  55  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  56  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  57  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  59  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  61  * SUCH DAMAGE.
  62  *
  63  *      @(#)fd.c        7.4 (Berkeley) 5/25/91
  64  */
  65
  66 #include <sys/mutex.h>
  67 #include <sys/condvar.h>
  68
  69 /*
  70  * Floppy formatting facilities merged from FreeBSD fd.c driver:
  71  *      Id: fd.c,v 1.53 1995/03/12 22:40:56 joerg Exp
  72  * which carries the same copyright/redistribution notice as shown above with
  73  * the addition of the following statement before the "Redistribution and
  74  * use ..." clause:
  75  *
  76  * Copyright (c) 1993, 1994 by
  77  *  jc@irbs.UUCP (John Capo)
  78  *  vak@zebub.msk.su (Serge Vakulenko)
  79  *  ache@astral.msk.su (Andrew A. Chernov)
  80  *
  81  * Copyright (c) 1993, 1994, 1995 by
  82  *  joerg_wunsch@uriah.sax.de (Joerg Wunsch)
  83  *  dufault@hda.com (Peter Dufault)
  84  */
  85
  86 enum fdc_state {
  87         PROBING = -1,
  88         DEVIDLE = 0,
  89         MOTORWAIT,
  90         DOSEEK,
  91         SEEKWAIT,
  92         SEEKTIMEDOUT,
  93         SEEKCOMPLETE,
  94         DOIO,
  95         IOCOMPLETE,
  96         IOTIMEDOUT,
  97         DORESET,
  98         RESETCOMPLETE,
  99         RESETTIMEDOUT,
 100         DORECAL,
 101         RECALWAIT,
 102         RECALTIMEDOUT,
 103         RECALCOMPLETE,
 104 };
 105
 106 /* software state, per controller */
 107 struct fdc_softc {
 108         device_t sc_dev;                /* boilerplate */
 109         void *sc_ih;
 110
 111         bus_space_tag_t sc_iot;         /* ISA i/o space identifier */
 112         bus_space_handle_t sc_ioh;      /* ISA io handle */
 113         isa_chipset_tag_t sc_ic;        /* ISA chipset info */
 114
 115         struct callout sc_timo_ch;      /* timeout callout */
 116         struct callout sc_intr_ch;      /* pseudo-intr callout */
 117
 118         /*
 119          * XXX We have port overlap with the first IDE controller.
 120          * Until we have a reasonable solution for handling overlap
 121          * like this, we kludge access to our control register at
 122          * offset 7.
 123          */
 124         bus_space_handle_t sc_fdctlioh;
 125 #define sc_fdinioh      sc_fdctlioh
 126
 127         int sc_drq;
 128         bus_size_t sc_maxiosize;
 129
 130         struct fd_softc *sc_fd[4];      /* pointers to children */
 131         TAILQ_HEAD(drivehead, fd_softc) sc_drives;
 132         enum fdc_state sc_state;
 133         int sc_errors;                  /* number of retries so far */
 134         u_char sc_status[7];            /* copy of registers */
 135
 136         int sc_known;                   /* direct configuration if non-zero */
 137         int sc_present;                 /* bitmap of available fds */
 138         const struct fd_type *sc_knownfds[4];   /* drive info known fds */
 139         kmutex_t sc_mtx;
 140         kcondvar_t sc_cv;
 141         int sc_probe;
 142 };
 143
 144 int     out_fdc(bus_space_tag_t iot, bus_space_handle_t ioh, u_char x);
 145
 146 void    fdcattach(struct fdc_softc *);
 147 void    fdc_childdet(device_t, device_t);
 148 int     fdcdetach(device_t self, int flags);
 149 int     fdcintr(void *);