linux_hdio.c revision 1.9.4.1
1 /* $NetBSD: linux_hdio.c,v 1.9.4.1 2006/06/21 14:59:12 yamt 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 1.9.4.1 2006/06/21 14:59:12 yamt 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/sa.h> 55 #include <sys/syscallargs.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_hdio.h> 62 63 #include <compat/linux/linux_syscallargs.h> 64 65 int 66 linux_ioctl_hdio(struct lwp *l, struct linux_sys_ioctl_args *uap, 67 register_t *retval) 68 { 69 struct proc *p = l->l_proc; 70 u_long com; 71 int error, error1; 72 caddr_t sg; 73 struct filedesc *fdp; 74 struct file *fp; 75 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 76 struct ataparams *atap, ata; 77 struct atareq req; 78 struct disklabel label, *labp; 79 struct partinfo partp; 80 struct linux_hd_geometry hdg; 81 struct linux_hd_big_geometry hdg_big; 82 83 fdp = p->p_fd; 84 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 85 return (EBADF); 86 87 FILE_USE(fp); 88 89 com = SCARG(uap, com); 90 ioctlf = fp->f_ops->fo_ioctl; 91 retval[0] = error = 0; 92 93 switch (com) { 94 case LINUX_HDIO_OBSOLETE_IDENTITY: 95 case LINUX_HDIO_GET_IDENTITY: 96 sg = stackgap_init(p, 0); 97 atap = stackgap_alloc(p, &sg, DEV_BSIZE); 98 if (atap == NULL) { 99 error = ENOMEM; 100 break; 101 } 102 103 req.flags = ATACMD_READ; 104 req.command = WDCC_IDENTIFY; 105 req.databuf = (caddr_t)atap; 106 req.datalen = DEV_BSIZE; 107 req.timeout = 1000; 108 error = ioctlf(fp, ATAIOCCOMMAND, (caddr_t)&req, l); 109 if (error != 0) 110 break; 111 if (req.retsts != ATACMD_OK) 112 return EIO; 113 error = copyin(atap, &ata, sizeof ata); 114 if (error != 0) 115 break; 116 /* 117 * 142 is the size of the old structure used by Linux, 118 * which doesn't seem to be defined anywhere anymore. 119 */ 120 error = copyout(&ata, SCARG(uap, data), 121 com == LINUX_HDIO_GET_IDENTITY ? sizeof ata : 142); 122 break; 123 case LINUX_HDIO_GETGEO: 124 error = linux_machdepioctl(l, uap, retval); 125 if (error == 0) 126 break; 127 error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, l); 128 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, l); 129 if (error != 0 && error1 != 0) { 130 error = error1; 131 break; 132 } 133 labp = error != 0 ? &label : partp.disklab; 134 hdg.start = error1 != 0 ? partp.part->p_offset : 0; 135 hdg.heads = labp->d_ntracks; 136 hdg.cylinders = labp->d_ncylinders; 137 hdg.sectors = labp->d_nsectors; 138 error = copyout(&hdg, SCARG(uap, data), sizeof hdg); 139 break; 140 case LINUX_HDIO_GETGEO_BIG: 141 error = linux_machdepioctl(l, uap, retval); 142 if (error == 0) 143 break; 144 case LINUX_HDIO_GETGEO_BIG_RAW: 145 error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, l); 146 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, l); 147 if (error != 0 && error1 != 0) { 148 error = error1; 149 break; 150 } 151 labp = error != 0 ? &label : partp.disklab; 152 hdg_big.start = error1 != 0 ? partp.part->p_offset : 0; 153 hdg_big.heads = labp->d_ntracks; 154 hdg_big.cylinders = labp->d_ncylinders; 155 hdg_big.sectors = labp->d_nsectors; 156 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big); 157 break; 158 case LINUX_HDIO_GET_UNMASKINTR: 159 case LINUX_HDIO_GET_MULTCOUNT: 160 case LINUX_HDIO_GET_KEEPSETTINGS: 161 case LINUX_HDIO_GET_32BIT: 162 case LINUX_HDIO_GET_NOWERR: 163 case LINUX_HDIO_GET_DMA: 164 case LINUX_HDIO_GET_NICE: 165 case LINUX_HDIO_DRIVE_RESET: 166 case LINUX_HDIO_TRISTATE_HWIF: 167 case LINUX_HDIO_DRIVE_TASK: 168 case LINUX_HDIO_DRIVE_CMD: 169 case LINUX_HDIO_SET_MULTCOUNT: 170 case LINUX_HDIO_SET_UNMASKINTR: 171 case LINUX_HDIO_SET_KEEPSETTINGS: 172 case LINUX_HDIO_SET_32BIT: 173 case LINUX_HDIO_SET_NOWERR: 174 case LINUX_HDIO_SET_DMA: 175 case LINUX_HDIO_SET_PIO_MODE: 176 case LINUX_HDIO_SCAN_HWIF: 177 case LINUX_HDIO_SET_NICE: 178 case LINUX_HDIO_UNREGISTER_HWIF: 179 error = EINVAL; 180 } 181 182 FILE_UNUSE(fp, l); 183 184 return error; 185 } 186
Indexes created Mon Sep 29 03:10:08 GMT 2025