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