1 /* $NetBSD: linux_hdio.c,v 1.13 2007/07/01 09:54:16 dsl 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 1.13 2007/07/01 09:54:16 dsl 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 62 #include <compat/linux/linux_syscallargs.h> 63 64 int 65 linux_ioctl_hdio(struct lwp *l, struct linux_sys_ioctl_args *uap, 66 register_t *retval) 67 { 68 struct proc *p = l->l_proc; 69 u_long com; 70 int error, error1; 71 struct filedesc *fdp; 72 struct file *fp; 73 int (*ioctlf)(struct file *, u_long, void *, struct lwp *); 74 struct atareq req; 75 struct disklabel label, *labp; 76 struct partinfo partp; 77 struct linux_hd_geometry hdg; 78 struct linux_hd_big_geometry hdg_big; 79 80 fdp = p->p_fd; 81 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) 82 return (EBADF); 83 84 FILE_USE(fp); 85 86 com = SCARG(uap, com); 87 ioctlf = fp->f_ops->fo_ioctl; 88 retval[0] = error = 0; 89 90 switch (com) { 91 case LINUX_HDIO_OBSOLETE_IDENTITY: 92 case LINUX_HDIO_GET_IDENTITY: 93 req.flags = ATACMD_READ; 94 req.command = WDCC_IDENTIFY; 95 req.databuf = SCARG(uap, data); 96 /* 97 * 142 is the size of the old structure used by Linux, 98 * which doesn't seem to be defined anywhere anymore. 99 * The new function should return the entire 512 byte area. 100 */ 101 req.datalen = com == LINUX_HDIO_GET_IDENTITY ? 512 : 142; 102 req.timeout = 1000; 103 error = ioctlf(fp, ATAIOCCOMMAND, &req, l); 104 if (error != 0) 105 break; 106 if (req.retsts != ATACMD_OK) 107 error = EIO; 108 break; 109 case LINUX_HDIO_GETGEO: 110 error = linux_machdepioctl(l, uap, retval); 111 if (error == 0) 112 break; 113 error = ioctlf(fp, DIOCGDEFLABEL, (void *)&label, l); 114 error1 = ioctlf(fp, DIOCGPART, (void *)&partp, l); 115 if (error != 0 && error1 != 0) { 116 error = error1; 117 break; 118 } 119 labp = error != 0 ? &label : partp.disklab; 120 hdg.start = error1 != 0 ? partp.part->p_offset : 0; 121 hdg.heads = labp->d_ntracks; 122 hdg.cylinders = labp->d_ncylinders; 123 hdg.sectors = labp->d_nsectors; 124 error = copyout(&hdg, SCARG(uap, data), sizeof hdg); 125 break; 126 case LINUX_HDIO_GETGEO_BIG: 127 error = linux_machdepioctl(l, uap, retval); 128 if (error == 0) 129 break; 130 case LINUX_HDIO_GETGEO_BIG_RAW: 131 error = ioctlf(fp, DIOCGDEFLABEL, (void *)&label, l); 132 error1 = ioctlf(fp, DIOCGPART, (void *)&partp, l); 133 if (error != 0 && error1 != 0) { 134 error = error1; 135 break; 136 } 137 labp = error != 0 ? &label : partp.disklab; 138 hdg_big.start = error1 != 0 ? partp.part->p_offset : 0; 139 hdg_big.heads = labp->d_ntracks; 140 hdg_big.cylinders = labp->d_ncylinders; 141 hdg_big.sectors = labp->d_nsectors; 142 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big); 143 break; 144 case LINUX_HDIO_GET_UNMASKINTR: 145 case LINUX_HDIO_GET_MULTCOUNT: 146 case LINUX_HDIO_GET_KEEPSETTINGS: 147 case LINUX_HDIO_GET_32BIT: 148 case LINUX_HDIO_GET_NOWERR: 149 case LINUX_HDIO_GET_DMA: 150 case LINUX_HDIO_GET_NICE: 151 case LINUX_HDIO_DRIVE_RESET: 152 case LINUX_HDIO_TRISTATE_HWIF: 153 case LINUX_HDIO_DRIVE_TASK: 154 case LINUX_HDIO_DRIVE_CMD: 155 case LINUX_HDIO_SET_MULTCOUNT: 156 case LINUX_HDIO_SET_UNMASKINTR: 157 case LINUX_HDIO_SET_KEEPSETTINGS: 158 case LINUX_HDIO_SET_32BIT: 159 case LINUX_HDIO_SET_NOWERR: 160 case LINUX_HDIO_SET_DMA: 161 case LINUX_HDIO_SET_PIO_MODE: 162 case LINUX_HDIO_SCAN_HWIF: 163 case LINUX_HDIO_SET_NICE: 164 case LINUX_HDIO_UNREGISTER_HWIF: 165 error = EINVAL; 166 } 167 168 FILE_UNUSE(fp, l); 169 170 return error; 171 } 172