1 /* $OpenBSD: linux_hdio.c,v 1.5 2002/03/14 01:26:50 millert Exp $ */
2 /* $NetBSD: linux_hdio.c,v 1.1 2000/12/10 14:12:17 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 <dev/ata/atareg.h>
49 #include <dev/ic/wdcreg.h>
50 #include <sys/ataio.h>
51
52 #include <sys/syscallargs.h>
53
54 #include <compat/linux/linux_types.h>
55 #include <compat/linux/linux_ioctl.h>
56 #include <compat/linux/linux_signal.h>
57 #include <compat/linux/linux_util.h>
58 #include <compat/linux/linux_hdio.h>
59
60 #include <compat/linux/linux_syscallargs.h>
61
62 int
linux_ioctl_hdio(struct proc * p,struct linux_sys_ioctl_args * uap,register_t * retval)63 linux_ioctl_hdio(struct proc *p, struct linux_sys_ioctl_args *uap,
64 register_t *retval)
65 {
66 u_long com;
67 int error, error1;
68 caddr_t sg;
69 struct filedesc *fdp;
70 struct file *fp;
71 int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *);
72 struct ataparams *atap, ata;
73 struct atareq req;
74 struct disklabel label, *labp;
75 struct partinfo partp;
76 struct linux_hd_geometry hdg;
77 struct linux_hd_big_geometry hdg_big;
78
79 fdp = p->p_fd;
80 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
81 return (EBADF);
82
83 FREF(fp);
84 com = SCARG(uap, com);
85 ioctlf = fp->f_ops->fo_ioctl;
86 retval[0] = error = 0;
87
88 com = SCARG(uap, com);
89
90 switch (com) {
91 case LINUX_HDIO_OBSOLETE_IDENTITY:
92 case LINUX_HDIO_GET_IDENTITY:
93 sg = stackgap_init(p->p_emul);
94 atap = stackgap_alloc(&sg, DEV_BSIZE);
95 if (atap == NULL) {
96 error = ENOMEM;
97 break;
98 }
99
100 req.flags = ATACMD_READ;
101 req.command = WDCC_IDENTIFY;
102 req.databuf = (caddr_t)atap;
103 req.datalen = DEV_BSIZE;
104 req.timeout = 1000;
105 error = ioctlf(fp, ATAIOCCOMMAND, (caddr_t)&req, p);
106 if (error != 0)
107 break;
108 if (req.retsts != ATACMD_OK) {
109 error = EIO;
110 break;
111 }
112 error = copyin(atap, &ata, sizeof ata);
113 if (error != 0)
114 break;
115 /*
116 * 142 is the size of the old structure used by Linux,
117 * which doesn't seem to be defined anywhere anymore.
118 */
119 error = copyout(&ata, SCARG(uap, data),
120 com == LINUX_HDIO_GET_IDENTITY ? sizeof ata : 142);
121 break;
122 case LINUX_HDIO_GETGEO:
123 error = linux_machdepioctl(p, uap, retval);
124 if (error == 0)
125 break;
126 error = ioctlf(fp, DIOCGDINFO, (caddr_t)&label, p);
127 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p);
128 if (error != 0 && error1 != 0) {
129 error = error1;
130 break;
131 }
132 labp = error != 0 ? &label : partp.disklab;
133 hdg.start = error1 != 0 ? partp.part->p_offset : 0;
134 hdg.heads = labp->d_ntracks;
135 hdg.cylinders = labp->d_ncylinders;
136 hdg.sectors = labp->d_nsectors;
137 error = copyout(&hdg, SCARG(uap, data), sizeof hdg);
138 break;
139 case LINUX_HDIO_GETGEO_BIG:
140 error = linux_machdepioctl(p, uap, retval);
141 if (error == 0)
142 break;
143 case LINUX_HDIO_GETGEO_BIG_RAW:
144 error = ioctlf(fp, DIOCGDINFO, (caddr_t)&label, p);
145 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p);
146 if (error != 0 && error1 != 0) {
147 error = error1;
148 break;
149 }
150 labp = error != 0 ? &label : partp.disklab;
151 hdg_big.start = error1 != 0 ? partp.part->p_offset : 0;
152 hdg_big.heads = labp->d_ntracks;
153 hdg_big.cylinders = labp->d_ncylinders;
154 hdg_big.sectors = labp->d_nsectors;
155 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big);
156 break;
157 case LINUX_HDIO_GET_UNMASKINTR:
158 case LINUX_HDIO_GET_MULTCOUNT:
159 case LINUX_HDIO_GET_KEEPSETTINGS:
160 case LINUX_HDIO_GET_32BIT:
161 case LINUX_HDIO_GET_NOWERR:
162 case LINUX_HDIO_GET_DMA:
163 case LINUX_HDIO_GET_NICE:
164 case LINUX_HDIO_DRIVE_RESET:
165 case LINUX_HDIO_TRISTATE_HWIF:
166 case LINUX_HDIO_DRIVE_TASK:
167 case LINUX_HDIO_DRIVE_CMD:
168 case LINUX_HDIO_SET_MULTCOUNT:
169 case LINUX_HDIO_SET_UNMASKINTR:
170 case LINUX_HDIO_SET_KEEPSETTINGS:
171 case LINUX_HDIO_SET_32BIT:
172 case LINUX_HDIO_SET_NOWERR:
173 case LINUX_HDIO_SET_DMA:
174 case LINUX_HDIO_SET_PIO_MODE:
175 case LINUX_HDIO_SCAN_HWIF:
176 case LINUX_HDIO_SET_NICE:
177 case LINUX_HDIO_UNREGISTER_HWIF:
178 error = EINVAL;
179 }
180
181 FRELE(fp);
182 return error;
183 }
184