1 | /* $NetBSD: linux_hdio.c,v 1.17 2015/12/08 20:36:14 christos 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_hdio.c,v 1.17 2015/12/08 20:36:14 christos 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 <dev/ata/atareg.h> |
51 | #include <dev/ic/wdcreg.h> |
52 | #include <sys/ataio.h> |
53 | |
54 | #include <sys/syscallargs.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_hdio.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_hdio(struct lwp *l, const struct linux_sys_ioctl_args *uap, |
68 | register_t *retval) |
69 | { |
70 | u_long com; |
71 | int error, error1; |
72 | struct file *fp; |
73 | int (*ioctlf)(struct file *, u_long, void *); |
74 | struct atareq req; |
75 | struct disklabel label; |
76 | struct partinfo pi; |
77 | struct linux_hd_geometry hdg; |
78 | struct linux_hd_big_geometry hdg_big; |
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 | retval[0] = error = 0; |
86 | |
87 | switch (com) { |
88 | case LINUX_HDIO_OBSOLETE_IDENTITY: |
89 | case LINUX_HDIO_GET_IDENTITY: |
90 | req.flags = ATACMD_READ; |
91 | req.command = WDCC_IDENTIFY; |
92 | req.databuf = SCARG(uap, data); |
93 | /* |
94 | * 142 is the size of the old structure used by Linux, |
95 | * which doesn't seem to be defined anywhere anymore. |
96 | * The new function should return the entire 512 byte area. |
97 | */ |
98 | req.datalen = com == LINUX_HDIO_GET_IDENTITY ? 512 : 142; |
99 | req.timeout = 1000; |
100 | error = ioctlf(fp, ATAIOCCOMMAND, &req); |
101 | if (error != 0) |
102 | break; |
103 | if (req.retsts != ATACMD_OK) |
104 | error = EIO; |
105 | break; |
106 | case LINUX_HDIO_GETGEO: |
107 | error = linux_machdepioctl(l, uap, retval); |
108 | if (error == 0) |
109 | break; |
110 | error = ioctlf(fp, DIOCGDINFO, &label); |
111 | error1 = ioctlf(fp, DIOCGPARTINFO, &pi); |
112 | if (error != 0 && error1 != 0) { |
113 | error = error1; |
114 | break; |
115 | } |
116 | hdg.start = error1 != 0 ? pi.pi_offset : 0; |
117 | hdg.heads = label.d_ntracks; |
118 | hdg.cylinders = label.d_ncylinders; |
119 | hdg.sectors = label.d_nsectors; |
120 | error = copyout(&hdg, SCARG(uap, data), sizeof hdg); |
121 | break; |
122 | case LINUX_HDIO_GETGEO_BIG: |
123 | error = linux_machdepioctl(l, uap, retval); |
124 | if (error == 0) |
125 | break; |
126 | case LINUX_HDIO_GETGEO_BIG_RAW: |
127 | error = ioctlf(fp, DIOCGDINFO, &label); |
128 | error1 = ioctlf(fp, DIOCGPARTINFO, &pi); |
129 | if (error != 0 && error1 != 0) { |
130 | error = error1; |
131 | break; |
132 | } |
133 | hdg_big.start = error1 != 0 ? pi.pi_offset : 0; |
134 | hdg_big.heads = label.d_ntracks; |
135 | hdg_big.cylinders = label.d_ncylinders; |
136 | hdg_big.sectors = label.d_nsectors; |
137 | error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big); |
138 | break; |
139 | case LINUX_HDIO_GET_UNMASKINTR: |
140 | case LINUX_HDIO_GET_MULTCOUNT: |
141 | case LINUX_HDIO_GET_KEEPSETTINGS: |
142 | case LINUX_HDIO_GET_32BIT: |
143 | case LINUX_HDIO_GET_NOWERR: |
144 | case LINUX_HDIO_GET_DMA: |
145 | case LINUX_HDIO_GET_NICE: |
146 | case LINUX_HDIO_DRIVE_RESET: |
147 | case LINUX_HDIO_TRISTATE_HWIF: |
148 | case LINUX_HDIO_DRIVE_TASK: |
149 | case LINUX_HDIO_DRIVE_CMD: |
150 | case LINUX_HDIO_SET_MULTCOUNT: |
151 | case LINUX_HDIO_SET_UNMASKINTR: |
152 | case LINUX_HDIO_SET_KEEPSETTINGS: |
153 | case LINUX_HDIO_SET_32BIT: |
154 | case LINUX_HDIO_SET_NOWERR: |
155 | case LINUX_HDIO_SET_DMA: |
156 | case LINUX_HDIO_SET_PIO_MODE: |
157 | case LINUX_HDIO_SCAN_HWIF: |
158 | case LINUX_HDIO_SET_NICE: |
159 | case LINUX_HDIO_UNREGISTER_HWIF: |
160 | error = EINVAL; |
161 | } |
162 | |
163 | fd_putfile(SCARG(uap, fd)); |
164 | |
165 | return error; |
166 | } |
167 | |