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
linux_ioctl_fdio(struct lwp * l,const struct linux_sys_ioctl_args * uap,register_t * retval)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