linux_hdio.c revision 1.1.4.5
1 /* $NetBSD: linux_hdio.c,v 1.1.4.5 2002/05/29 21:32:38 nathanw 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 1.1.4.5 2002/05/29 21:32:38 nathanw 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 proc *p, struct linux_sys_ioctl_args *uap, 67 register_t *retval) 68 { 69 u_long com; 70 int error, error1; 71 caddr_t sg; 72 struct filedesc *fdp; 73 struct file *fp; 74 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 75 struct ataparams *atap, ata; 76 struct atareq req; 77 struct disklabel label, *labp; 78 struct partinfo partp; 79 struct linux_hd_geometry hdg; 80 struct linux_hd_big_geometry hdg_big; 81 82 fdp = p->p_fd; 83 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 84 return (EBADF); 85 86 FILE_USE(fp); 87 88 com = SCARG(uap, com); 89 ioctlf = fp->f_ops->fo_ioctl; 90 retval[0] = error = 0; 91 92 com = SCARG(uap, com); 93 94 switch (com) { 95 case LINUX_HDIO_OBSOLETE_IDENTITY: 96 case LINUX_HDIO_GET_IDENTITY: 97 sg = stackgap_init(p, 0); 98 atap = stackgap_alloc(p, &sg, DEV_BSIZE); 99 if (atap == NULL) { 100 error = ENOMEM; 101 break; 102 } 103 104 req.flags = ATACMD_READ; 105 req.command = WDCC_IDENTIFY; 106 req.databuf = (caddr_t)atap; 107 req.datalen = DEV_BSIZE; 108 req.timeout = 1000; 109 error = ioctlf(fp, ATAIOCCOMMAND, (caddr_t)&req, p); 110 if (error != 0) 111 break; 112 if (req.retsts != ATACMD_OK) 113 return EIO; 114 error = copyin(atap, &ata, sizeof ata); 115 if (error != 0) 116 break; 117 /* 118 * 142 is the size of the old structure used by Linux, 119 * which doesn't seem to be defined anywhere anymore. 120 */ 121 error = copyout(&ata, SCARG(uap, data), 122 com == LINUX_HDIO_GET_IDENTITY ? sizeof ata : 142); 123 break; 124 case LINUX_HDIO_GETGEO: 125 error = linux_machdepioctl(p, uap, retval); 126 if (error == 0) 127 break; 128 error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, p); 129 error = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p); 130 if (error != 0 && error1 != 0) { 131 error = error1; 132 break; 133 } 134 labp = error != 0 ? &label : partp.disklab; 135 hdg.start = error1 != 0 ? partp.part->p_offset : 0; 136 hdg.heads = labp->d_ntracks; 137 hdg.cylinders = labp->d_ncylinders; 138 hdg.sectors = labp->d_nsectors; 139 error = copyout(&hdg, SCARG(uap, data), sizeof hdg); 140 break; 141 case LINUX_HDIO_GETGEO_BIG: 142 error = linux_machdepioctl(p, uap, retval); 143 if (error == 0) 144 break; 145 case LINUX_HDIO_GETGEO_BIG_RAW: 146 error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, p); 147 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p); 148 if (error != 0 && error1 != 0) { 149 error = error1; 150 break; 151 } 152 labp = error != 0 ? &label : partp.disklab; 153 hdg_big.start = error1 != 0 ? partp.part->p_offset : 0; 154 hdg_big.heads = labp->d_ntracks; 155 hdg_big.cylinders = labp->d_ncylinders; 156 hdg_big.sectors = labp->d_nsectors; 157 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big); 158 break; 159 case LINUX_HDIO_GET_UNMASKINTR: 160 case LINUX_HDIO_GET_MULTCOUNT: 161 case LINUX_HDIO_GET_KEEPSETTINGS: 162 case LINUX_HDIO_GET_32BIT: 163 case LINUX_HDIO_GET_NOWERR: 164 case LINUX_HDIO_GET_DMA: 165 case LINUX_HDIO_GET_NICE: 166 case LINUX_HDIO_DRIVE_RESET: 167 case LINUX_HDIO_TRISTATE_HWIF: 168 case LINUX_HDIO_DRIVE_TASK: 169 case LINUX_HDIO_DRIVE_CMD: 170 case LINUX_HDIO_SET_MULTCOUNT: 171 case LINUX_HDIO_SET_UNMASKINTR: 172 case LINUX_HDIO_SET_KEEPSETTINGS: 173 case LINUX_HDIO_SET_32BIT: 174 case LINUX_HDIO_SET_NOWERR: 175 case LINUX_HDIO_SET_DMA: 176 case LINUX_HDIO_SET_PIO_MODE: 177 case LINUX_HDIO_SCAN_HWIF: 178 case LINUX_HDIO_SET_NICE: 179 case LINUX_HDIO_UNREGISTER_HWIF: 180 error = EINVAL; 181 } 182 183 FILE_UNUSE(fp, p); 184 185 return error; 186 } 187
Indexes created Mon Sep 29 18:09:42 GMT 2025