1/* $NetBSD: fdcvar.h,v 1.10 2008/04/28 20:23:52 martin 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
86enum 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 */
107struct 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
144int out_fdc(bus_space_tag_t iot, bus_space_handle_t ioh, u_char x);
145
146void fdcattach(struct fdc_softc *);
147void fdc_childdet(device_t, device_t);
148int fdcdetach(device_t self, int flags);
149int fdcintr(void *);
150