1 | /* $NetBSD: linux_fdio.c,v 1.13 2008/03/21 21:54:58 ad Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2000 Wasabi Systems, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * Written by Frank van der Linden for Wasabi Systems, Inc. |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. |
14 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * notice, this list of conditions and the following disclaimer in the |
16 | * documentation and/or other materials provided with the distribution. |
17 | * 3. All advertising materials mentioning features or use of this software |
18 | * must display the following acknowledgement: |
19 | * This product includes software developed for the NetBSD Project by |
20 | * Wasabi Systems, Inc. |
21 | * 4. The name of Wasabi Systems, Inc. may not be used to endorse |
22 | * or promote products derived from this software without specific prior |
23 | * written permission. |
24 | * |
25 | * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND |
26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
27 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
28 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC |
29 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
35 | * POSSIBILITY OF SUCH DAMAGE. |
36 | */ |
37 | |
38 | #include <sys/cdefs.h> |
39 | __KERNEL_RCSID(0, "$NetBSD: linux_fdio.c,v 1.13 2008/03/21 21:54:58 ad Exp $" ); |
40 | |
41 | #include <sys/param.h> |
42 | #include <sys/systm.h> |
43 | #include <sys/ioctl.h> |
44 | #include <sys/file.h> |
45 | #include <sys/filedesc.h> |
46 | #include <sys/mount.h> |
47 | #include <sys/proc.h> |
48 | #include <sys/disklabel.h> |
49 | |
50 | #include <sys/fdio.h> |
51 | |
52 | #include <sys/syscallargs.h> |
53 | |
54 | #include <dev/isa/fdreg.h> |
55 | |
56 | #include <compat/linux/common/linux_types.h> |
57 | #include <compat/linux/common/linux_ioctl.h> |
58 | #include <compat/linux/common/linux_signal.h> |
59 | #include <compat/linux/common/linux_util.h> |
60 | #include <compat/linux/common/linux_fdio.h> |
61 | #include <compat/linux/common/linux_ipc.h> |
62 | #include <compat/linux/common/linux_sem.h> |
63 | |
64 | #include <compat/linux/linux_syscallargs.h> |
65 | |
66 | int |
67 | linux_ioctl_fdio(struct lwp *l, const struct linux_sys_ioctl_args *uap, |
68 | register_t *retval) |
69 | { |
70 | file_t *fp; |
71 | int error; |
72 | int (*ioctlf)(file_t *, u_long, void *); |
73 | u_long com; |
74 | struct fdformat_parms fparams; |
75 | struct linux_floppy_struct lflop; |
76 | struct linux_floppy_drive_struct ldrive; |
77 | |
78 | com = (u_long)SCARG(uap, data); |
79 | |
80 | if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) |
81 | return (EBADF); |
82 | |
83 | com = SCARG(uap, com); |
84 | ioctlf = fp->f_ops->fo_ioctl; |
85 | |
86 | retval[0] = error = 0; |
87 | |
88 | switch (com) { |
89 | case LINUX_FDMSGON: |
90 | case LINUX_FDMSGOFF: |
91 | case LINUX_FDTWADDLE: |
92 | case LINUX_FDCLRPRM: |
93 | /* whatever you say */ |
94 | break; |
95 | case LINUX_FDPOLLDRVSTAT: |
96 | /* |
97 | * Just fill in some innocent defaults. |
98 | */ |
99 | memset(&ldrive, 0, sizeof ldrive); |
100 | ldrive.fd_ref = 1; |
101 | ldrive.maxblock = 2; |
102 | ldrive.maxtrack = ldrive.track = 1; |
103 | ldrive.flags = LINUX_FD_DISK_WRITABLE; |
104 | error = copyout(&ldrive, SCARG(uap, data), sizeof ldrive); |
105 | break; |
106 | case LINUX_FDGETPRM: |
107 | error = ioctlf(fp, FDIOCGETFORMAT, &fparams); |
108 | if (error != 0) |
109 | break; |
110 | lflop.size = fparams.ncyl * fparams.nspt * fparams.ntrk; |
111 | lflop.sect = fparams.nspt; |
112 | lflop.head = fparams.ntrk; |
113 | lflop.track = fparams.ncyl; |
114 | lflop.stretch = fparams.stepspercyl == 2 ? 1 : 0; |
115 | lflop.fmt_gap = fparams.gaplen; |
116 | /* |
117 | * XXXX Use knowledge of floppy for these fields. |
118 | * FDIOCGETFORMAT does not provide enough information. |
119 | * It would be better to have FDIOCGETFORMAT return more |
120 | * information. |
121 | */ |
122 | switch (fparams.xfer_rate) { |
123 | case 500 * 1024: |
124 | lflop.spec1 = 0xcf; |
125 | lflop.gap = 0x1b; |
126 | lflop.rate = FDC_500KBPS; |
127 | break; |
128 | case 300 * 1024: |
129 | lflop.spec1 = 0xdf; |
130 | lflop.gap = 0x23; |
131 | lflop.rate = FDC_300KBPS; |
132 | break; |
133 | case 250 * 1024: |
134 | lflop.spec1 = 0xdf; |
135 | lflop.gap = 0x2a; |
136 | lflop.rate = FDC_250KBPS; |
137 | break; |
138 | } |
139 | error = copyout(&lflop, SCARG(uap, data), sizeof lflop); |
140 | break; |
141 | case LINUX_FDSETPRM: |
142 | /* |
143 | * Should use FDIOCSETFORMAT here, iff its interface |
144 | * is extended. |
145 | */ |
146 | case LINUX_FDDEFPRM: |
147 | case LINUX_FDFMTBEG: |
148 | case LINUX_FDFMTTRK: |
149 | case LINUX_FDFMTEND: |
150 | case LINUX_FDSETEMSGTRESH: |
151 | case LINUX_FDFLUSH: |
152 | case LINUX_FDSETMAXERRS: |
153 | case LINUX_FDGETMAXERRS: |
154 | case LINUX_FDGETDRVTYP: |
155 | case LINUX_FDSETDRVPRM: |
156 | case LINUX_FDGETDRVPRM: |
157 | case LINUX_FDGETDRVSTAT: |
158 | case LINUX_FDRESET: |
159 | case LINUX_FDGETFDCSTAT: |
160 | case LINUX_FDWERRORCLR: |
161 | case LINUX_FDWERRORGET: |
162 | case LINUX_FDRAWCMD: |
163 | case LINUX_FDEJECT: |
164 | default: |
165 | error = EINVAL; |
166 | } |
167 | |
168 | fd_putfile(SCARG(uap, fd)); |
169 | |
170 | return 0; |
171 | } |
172 | |