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 | |
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 *); |
150 | |