1 /* $NetBSD: linux_fdio.c,v 1.7 2003/06/29 22:29:28 fvdl 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 1.7 2003/06/29 22:29:28 fvdl 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/sa.h>
53 #include <sys/syscallargs.h>
54
55 #include <dev/isa/fdreg.h>
56
57 #include <compat/linux/common/linux_types.h>
58 #include <compat/linux/common/linux_ioctl.h>
59 #include <compat/linux/common/linux_signal.h>
60 #include <compat/linux/common/linux_util.h>
61 #include <compat/linux/common/linux_fdio.h>
62
63 #include <compat/linux/linux_syscallargs.h>
64
65 int
66 linux_ioctl_fdio(struct proc *p, struct linux_sys_ioctl_args *uap,
67 register_t *retval)
68 {
69 struct filedesc *fdp;
70 struct file *fp;
71 int error;
72 int (*ioctlf)(struct file *, u_long, void *, struct proc *);
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 fdp = p->p_fd;
81 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
82 return (EBADF);
83
84 FILE_USE(fp);
85
86 com = SCARG(uap, com);
87 ioctlf = fp->f_ops->fo_ioctl;
88
89 retval[0] = error = 0;
90
91 switch (com) {
92 case LINUX_FDMSGON:
93 case LINUX_FDMSGOFF:
94 case LINUX_FDTWADDLE:
95 case LINUX_FDCLRPRM:
96 /* whatever you say */
97 break;
98 case LINUX_FDPOLLDRVSTAT:
99 /*
100 * Just fill in some innocent defaults.
101 */
102 memset(&ldrive, 0, sizeof ldrive);
103 ldrive.fd_ref = 1;
104 ldrive.maxblock = 2;
105 ldrive.maxtrack = ldrive.track = 1;
106 ldrive.flags = LINUX_FD_DISK_WRITABLE;
107 error = copyout(&ldrive, SCARG(uap, data), sizeof ldrive);
108 break;
109 case LINUX_FDGETPRM:
110 error = ioctlf(fp, FDIOCGETFORMAT, (caddr_t)&fparams, p);
111 if (error != 0)
112 break;
113 lflop.size = fparams.ncyl * fparams.nspt * fparams.ntrk;
114 lflop.sect = fparams.nspt;
115 lflop.head = fparams.ntrk;
116 lflop.track = fparams.ncyl;
117 lflop.stretch = fparams.stepspercyl == 2 ? 1 : 0;
118 lflop.fmt_gap = fparams.gaplen;
119 /*
120 * XXXX Use knowledge of floppy for these fields.
121 * FDIOCGETFORMAT does not provide enough information.
122 * It would be better to have FDIOCGETFORMAT return more
123 * information.
124 */
125 switch (fparams.xfer_rate) {
126 case 500 * 1024:
127 lflop.spec1 = 0xcf;
128 lflop.gap = 0x1b;
129 lflop.rate = FDC_500KBPS;
130 break;
131 case 300 * 1024:
132 lflop.spec1 = 0xdf;
133 lflop.gap = 0x23;
134 lflop.rate = FDC_300KBPS;
135 break;
136 case 250 * 1024:
137 lflop.spec1 = 0xdf;
138 lflop.gap = 0x2a;
139 lflop.rate = FDC_250KBPS;
140 break;
141 }
142 error = copyout(&lflop, SCARG(uap, data), sizeof lflop);
143 break;
144 case LINUX_FDSETPRM:
145 /*
146 * Should use FDIOCSETFORMAT here, iff its interface
147 * is extended.
148 */
149 case LINUX_FDDEFPRM:
150 case LINUX_FDFMTBEG:
151 case LINUX_FDFMTTRK:
152 case LINUX_FDFMTEND:
153 case LINUX_FDSETEMSGTRESH:
154 case LINUX_FDFLUSH:
155 case LINUX_FDSETMAXERRS:
156 case LINUX_FDGETMAXERRS:
157 case LINUX_FDGETDRVTYP:
158 case LINUX_FDSETDRVPRM:
159 case LINUX_FDGETDRVPRM:
160 case LINUX_FDGETDRVSTAT:
161 case LINUX_FDRESET:
162 case LINUX_FDGETFDCSTAT:
163 case LINUX_FDWERRORCLR:
164 case LINUX_FDWERRORGET:
165 case LINUX_FDRAWCMD:
166 case LINUX_FDEJECT:
167 default:
168 error = EINVAL;
169 }
170
171 FILE_UNUSE(fp, p);
172
173 return 0;
174 }
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