| 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 | |