1 /* $NetBSD: linux_hdio.c,v 1.16 2008/03/21 21:54:58 ad 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 1.16 2008/03/21 21:54:58 ad 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, *labp; 76 struct partinfo partp; 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, DIOCGDEFLABEL, &label); 111 error1 = ioctlf(fp, DIOCGPART, &partp); 112 if (error != 0 && error1 != 0) { 113 error = error1; 114 break; 115 } 116 labp = error != 0 ? &label : partp.disklab; 117 hdg.start = error1 != 0 ? partp.part->p_offset : 0; 118 hdg.heads = labp->d_ntracks; 119 hdg.cylinders = labp->d_ncylinders; 120 hdg.sectors = labp->d_nsectors; 121 error = copyout(&hdg, SCARG(uap, data), sizeof hdg); 122 break; 123 case LINUX_HDIO_GETGEO_BIG: 124 error = linux_machdepioctl(l, uap, retval); 125 if (error == 0) 126 break; 127 case LINUX_HDIO_GETGEO_BIG_RAW: 128 error = ioctlf(fp, DIOCGDEFLABEL, &label); 129 error1 = ioctlf(fp, DIOCGPART, &partp); 130 if (error != 0 && error1 != 0) { 131 error = error1; 132 break; 133 } 134 labp = error != 0 ? &label : partp.disklab; 135 hdg_big.start = error1 != 0 ? partp.part->p_offset : 0; 136 hdg_big.heads = labp->d_ntracks; 137 hdg_big.cylinders = labp->d_ncylinders; 138 hdg_big.sectors = labp->d_nsectors; 139 error = copyout(&hdg_big, SCARG(uap, data), sizeof hdg_big); 140 break; 141 case LINUX_HDIO_GET_UNMASKINTR: 142 case LINUX_HDIO_GET_MULTCOUNT: 143 case LINUX_HDIO_GET_KEEPSETTINGS: 144 case LINUX_HDIO_GET_32BIT: 145 case LINUX_HDIO_GET_NOWERR: 146 case LINUX_HDIO_GET_DMA: 147 case LINUX_HDIO_GET_NICE: 148 case LINUX_HDIO_DRIVE_RESET: 149 case LINUX_HDIO_TRISTATE_HWIF: 150 case LINUX_HDIO_DRIVE_TASK: 151 case LINUX_HDIO_DRIVE_CMD: 152 case LINUX_HDIO_SET_MULTCOUNT: 153 case LINUX_HDIO_SET_UNMASKINTR: 154 case LINUX_HDIO_SET_KEEPSETTINGS: 155 case LINUX_HDIO_SET_32BIT: 156 case LINUX_HDIO_SET_NOWERR: 157 case LINUX_HDIO_SET_DMA: 158 case LINUX_HDIO_SET_PIO_MODE: 159 case LINUX_HDIO_SCAN_HWIF: 160 case LINUX_HDIO_SET_NICE: 161 case LINUX_HDIO_UNREGISTER_HWIF: 162 error = EINVAL; 163 } 164 165 fd_putfile(SCARG(uap, fd)); 166 167 return error; 168 } 169