150 lines
5.3 KiB
C
150 lines
5.3 KiB
C
/* $NetBSD: fdcvar.h,v 1.10 2008/04/28 20:23:52 martin Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Don Ahn.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)fd.c 7.4 (Berkeley) 5/25/91
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*/
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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/*
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* Floppy formatting facilities merged from FreeBSD fd.c driver:
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* Id: fd.c,v 1.53 1995/03/12 22:40:56 joerg Exp
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* which carries the same copyright/redistribution notice as shown above with
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* the addition of the following statement before the "Redistribution and
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* use ..." clause:
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*
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* Copyright (c) 1993, 1994 by
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* jc@irbs.UUCP (John Capo)
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* vak@zebub.msk.su (Serge Vakulenko)
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* ache@astral.msk.su (Andrew A. Chernov)
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*
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* Copyright (c) 1993, 1994, 1995 by
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* joerg_wunsch@uriah.sax.de (Joerg Wunsch)
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* dufault@hda.com (Peter Dufault)
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*/
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enum fdc_state {
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PROBING = -1,
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DEVIDLE = 0,
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MOTORWAIT,
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DOSEEK,
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SEEKWAIT,
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SEEKTIMEDOUT,
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SEEKCOMPLETE,
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DOIO,
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IOCOMPLETE,
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IOTIMEDOUT,
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DORESET,
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RESETCOMPLETE,
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RESETTIMEDOUT,
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DORECAL,
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RECALWAIT,
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RECALTIMEDOUT,
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RECALCOMPLETE,
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};
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/* software state, per controller */
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struct fdc_softc {
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device_t sc_dev; /* boilerplate */
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void *sc_ih;
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bus_space_tag_t sc_iot; /* ISA i/o space identifier */
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bus_space_handle_t sc_ioh; /* ISA io handle */
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isa_chipset_tag_t sc_ic; /* ISA chipset info */
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struct callout sc_timo_ch; /* timeout callout */
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struct callout sc_intr_ch; /* pseudo-intr callout */
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/*
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* XXX We have port overlap with the first IDE controller.
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* Until we have a reasonable solution for handling overlap
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* like this, we kludge access to our control register at
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* offset 7.
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*/
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bus_space_handle_t sc_fdctlioh;
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#define sc_fdinioh sc_fdctlioh
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int sc_drq;
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bus_size_t sc_maxiosize;
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struct fd_softc *sc_fd[4]; /* pointers to children */
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TAILQ_HEAD(drivehead, fd_softc) sc_drives;
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enum fdc_state sc_state;
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int sc_errors; /* number of retries so far */
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u_char sc_status[7]; /* copy of registers */
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int sc_known; /* direct configuration if non-zero */
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int sc_present; /* bitmap of available fds */
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const struct fd_type *sc_knownfds[4]; /* drive info known fds */
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kmutex_t sc_mtx;
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kcondvar_t sc_cv;
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int sc_probe;
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};
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int out_fdc(bus_space_tag_t iot, bus_space_handle_t ioh, u_char x);
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void fdcattach(struct fdc_softc *);
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void fdc_childdet(device_t, device_t);
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int fdcdetach(device_t self, int flags);
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int fdcintr(void *);
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