1 /* $OpenBSD: linux_fdio.c,v 1.6 2002/03/14 01:26:50 millert Exp $ */
2 /* $NetBSD: linux_fdio.c,v 1.1 2000/12/10 14:12:16 fvdl Exp $ */
3
4 /*
5 * Copyright (c) 2000 Wasabi Systems, Inc.
6 * All rights reserved.
7 *
8 * Written by Frank van der Linden for Wasabi Systems, Inc.
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 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed for the NetBSD Project by
21 * Wasabi Systems, Inc.
22 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
23 * or promote products derived from this software without specific prior
24 * written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/ioctl.h>
42 #include <sys/file.h>
43 #include <sys/filedesc.h>
44 #include <sys/mount.h>
45 #include <sys/proc.h>
46 #include <sys/disklabel.h>
47
48 #include <sys/syscallargs.h>
49
50 #include <dev/isa/fdreg.h>
51
52 #include <compat/linux/linux_types.h>
53 #include <compat/linux/linux_ioctl.h>
54 #include <compat/linux/linux_signal.h>
55 #include <compat/linux/linux_util.h>
56 #include <compat/linux/linux_fdio.h>
57
58 #include <machine/ioctl_fd.h>
59
60 #include <compat/linux/linux_syscallargs.h>
61
62 int
linux_ioctl_fdio(struct proc * p,struct linux_sys_ioctl_args * uap,register_t * retval)63 linux_ioctl_fdio(struct proc *p, struct linux_sys_ioctl_args *uap,
64 register_t *retval)
65 {
66 struct filedesc *fdp;
67 struct file *fp;
68 int error;
69 int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *);
70 u_long com;
71 struct fd_type fparams;
72 struct linux_floppy_struct lflop;
73 struct linux_floppy_drive_struct ldrive;
74
75 com = (u_long)SCARG(uap, data);
76
77 fdp = p->p_fd;
78 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
79 return (EBADF);
80
81 FREF(fp);
82 com = SCARG(uap, com);
83 ioctlf = fp->f_ops->fo_ioctl;
84
85 retval[0] = error = 0;
86
87 switch (com) {
88 case LINUX_FDMSGON:
89 case LINUX_FDMSGOFF:
90 case LINUX_FDTWADDLE:
91 case LINUX_FDCLRPRM:
92 /* whatever you say */
93 break;
94 case LINUX_FDPOLLDRVSTAT:
95 /*
96 * Just fill in some innocent defaults.
97 */
98 memset(&ldrive, 0, sizeof ldrive);
99 ldrive.fd_ref = 1;
100 ldrive.maxblock = 2;
101 ldrive.maxtrack = ldrive.track = 1;
102 ldrive.flags = LINUX_FD_DISK_WRITABLE;
103 error = copyout(&ldrive, SCARG(uap, data), sizeof ldrive);
104 break;
105 case LINUX_FDGETPRM:
106 error = ioctlf(fp, FD_GTYPE, (caddr_t)&fparams, p);
107 if (error != 0)
108 break;
109 lflop.size = fparams.heads * fparams.sectrac * fparams.tracks;
110 lflop.sect = fparams.sectrac;
111 lflop.head = fparams.heads;
112 lflop.track = fparams.tracks;
113 lflop.stretch = fparams.step == 2 ? 1 : 0;
114 lflop.spec1 = fparams.steprate;
115 lflop.gap = fparams.gap1;
116 lflop.fmt_gap = fparams.gap2;
117 lflop.rate = fparams.rate;
118
119 error = copyout(&lflop, SCARG(uap, data), sizeof lflop);
120 break;
121 case LINUX_FDSETPRM:
122 /*
123 * Should use FDIOCSETFORMAT here, iff its interface
124 * is extended.
125 */
126 case LINUX_FDDEFPRM:
127 case LINUX_FDFMTBEG:
128 case LINUX_FDFMTTRK:
129 case LINUX_FDFMTEND:
130 case LINUX_FDSETEMSGTRESH:
131 case LINUX_FDFLUSH:
132 case LINUX_FDSETMAXERRS:
133 case LINUX_FDGETMAXERRS:
134 case LINUX_FDGETDRVTYP:
135 case LINUX_FDSETDRVPRM:
136 case LINUX_FDGETDRVPRM:
137 case LINUX_FDGETDRVSTAT:
138 case LINUX_FDRESET:
139 case LINUX_FDGETFDCSTAT:
140 case LINUX_FDWERRORCLR:
141 case LINUX_FDWERRORGET:
142 case LINUX_FDRAWCMD:
143 case LINUX_FDEJECT:
144 default:
145 error = EINVAL;
146 }
147
148 FRELE(fp);
149 return 0;
150 }
151