1 /* $NetBSD: linux_hdio.c,v 1.2 2001/06/14 20:32:43 thorpej 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/param.h> 39 #include <sys/systm.h> 40 #include <sys/ioctl.h> 41 #include <sys/file.h> 42 #include <sys/filedesc.h> 43 #include <sys/mount.h> 44 #include <sys/proc.h> 45 #include <sys/disklabel.h> 46 47 #include <dev/ata/atareg.h> 48 #include <dev/ic/wdcreg.h> 49 #include <sys/ataio.h> 50 51 #include <sys/syscallargs.h> 52 53 #include <compat/linux/common/linux_types.h> 54 #include <compat/linux/common/linux_ioctl.h> 55 #include <compat/linux/common/linux_signal.h> 56 #include <compat/linux/common/linux_util.h> 57 #include <compat/linux/common/linux_hdio.h> 58 59 #include <compat/linux/linux_syscallargs.h> 60 61 int 62 linux_ioctl_hdio(struct proc *p, struct linux_sys_ioctl_args *uap, 63 register_t *retval) 64 { 65 u_long com; 66 int error, error1; 67 caddr_t sg; 68 struct filedesc *fdp; 69 struct file *fp; 70 int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)); 71 struct ataparams *atap, ata; 72 struct atareq req; 73 struct disklabel label, *labp; 74 struct partinfo partp; 75 struct linux_hd_geometry hdg; 76 struct linux_hd_big_geometry hdg_big; 77 78 fdp = p->p_fd; 79 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 80 return (EBADF); 81 82 FILE_USE(fp); 83 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 return EIO; 110 error = copyin(atap, &ata, sizeof ata); 111 if (error != 0) 112 break; 113 /* 114 * 142 is the size of the old structure used by Linux, 115 * which doesn't seem to be defined anywhere anymore. 116 */ 117 error = copyout(&ata, SCARG(uap, data), 118 com == LINUX_HDIO_GET_IDENTITY ? sizeof ata : 142); 119 break; 120 case LINUX_HDIO_GETGEO: 121 error = linux_machdepioctl(p, uap, retval); 122 if (error == 0) 123 break; 124 error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, p); 125 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p); 126 if (error != 0 && error1 != 0) { 127 error = error1; 128 break; 129 } 130 labp = error != 0 ? &label : partp.disklab; 131 hdg.start = error1 != 0 ? partp.part->p_offset : 0; 132 hdg.heads = labp->d_ntracks; 133 hdg.cylinders = labp->d_ncylinders; 134 hdg.sectors = labp->d_nsectors; 135 error = copyout(&hdg, SCARG(uap, data), sizeof hdg); 136 break; 137 case LINUX_HDIO_GETGEO_BIG: 138 error = linux_machdepioctl(p, uap, retval); 139 if (error == 0) 140 break; 141 case LINUX_HDIO_GETGEO_BIG_RAW: 142 error = ioctlf(fp, DIOCGDEFLABEL, (caddr_t)&label, p); 143 error1 = ioctlf(fp, DIOCGPART, (caddr_t)&partp, p); 144 if (error != 0 && error1 != 0) { 145 error = error1; 146 break; 147 } 148 labp = error != 0 ? &label : partp.disklab; 149 hdg_big.start = error1 != 0 ? partp.part->p_offset : 0; 150 hdg_big.heads = labp->d_ntracks; 151 hdg_big.cylinders = labp->d_ncylinders; 152 hdg_big.sectors = labp->d_nsectors; 153 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big); 154 break; 155 case LINUX_HDIO_GET_UNMASKINTR: 156 case LINUX_HDIO_GET_MULTCOUNT: 157 case LINUX_HDIO_GET_KEEPSETTINGS: 158 case LINUX_HDIO_GET_32BIT: 159 case LINUX_HDIO_GET_NOWERR: 160 case LINUX_HDIO_GET_DMA: 161 case LINUX_HDIO_GET_NICE: 162 case LINUX_HDIO_DRIVE_RESET: 163 case LINUX_HDIO_TRISTATE_HWIF: 164 case LINUX_HDIO_DRIVE_TASK: 165 case LINUX_HDIO_DRIVE_CMD: 166 case LINUX_HDIO_SET_MULTCOUNT: 167 case LINUX_HDIO_SET_UNMASKINTR: 168 case LINUX_HDIO_SET_KEEPSETTINGS: 169 case LINUX_HDIO_SET_32BIT: 170 case LINUX_HDIO_SET_NOWERR: 171 case LINUX_HDIO_SET_DMA: 172 case LINUX_HDIO_SET_PIO_MODE: 173 case LINUX_HDIO_SCAN_HWIF: 174 case LINUX_HDIO_SET_NICE: 175 case LINUX_HDIO_UNREGISTER_HWIF: 176 error = EINVAL; 177 } 178 179 FILE_UNUSE(fp, p); 180 181 return error; 182 } 183