1 /* $NetBSD: linux_fdio.c,v 1.14 2021/09/07 11:43:04 riastradh 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_fdio.c,v 1.14 2021/09/07 11:43:04 riastradh 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 <sys/fdio.h> 51 52 #include <sys/syscallargs.h> 53 54 #include <dev/isa/fdreg.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_fdio.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_fdio(struct lwp *l, const struct linux_sys_ioctl_args *uap, 68 register_t *retval) 69 { 70 file_t *fp; 71 int error; 72 int (*ioctlf)(file_t *, u_long, void *); 73 u_long com; 74 struct fdformat_parms fparams; 75 struct linux_floppy_struct lflop; 76 struct linux_floppy_drive_struct ldrive; 77 78 com = (u_long)SCARG(uap, data); 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 86 retval[0] = error = 0; 87 88 switch (com) { 89 case LINUX_FDMSGON: 90 case LINUX_FDMSGOFF: 91 case LINUX_FDTWADDLE: 92 case LINUX_FDCLRPRM: 93 /* whatever you say */ 94 break; 95 case LINUX_FDPOLLDRVSTAT: 96 /* 97 * Just fill in some innocent defaults. 98 */ 99 memset(&ldrive, 0, sizeof ldrive); 100 ldrive.fd_ref = 1; 101 ldrive.maxblock = 2; 102 ldrive.maxtrack = ldrive.track = 1; 103 ldrive.flags = LINUX_FD_DISK_WRITABLE; 104 error = copyout(&ldrive, SCARG(uap, data), sizeof ldrive); 105 break; 106 case LINUX_FDGETPRM: 107 error = ioctlf(fp, FDIOCGETFORMAT, &fparams); 108 if (error != 0) 109 break; 110 memset(&lflop, 0, sizeof(lflop)); 111 lflop.size = fparams.ncyl * fparams.nspt * fparams.ntrk; 112 lflop.sect = fparams.nspt; 113 lflop.head = fparams.ntrk; 114 lflop.track = fparams.ncyl; 115 lflop.stretch = fparams.stepspercyl == 2 ? 1 : 0; 116 lflop.fmt_gap = fparams.gaplen; 117 /* 118 * XXXX Use knowledge of floppy for these fields. 119 * FDIOCGETFORMAT does not provide enough information. 120 * It would be better to have FDIOCGETFORMAT return more 121 * information. 122 */ 123 switch (fparams.xfer_rate) { 124 case 500 * 1024: 125 lflop.spec1 = 0xcf; 126 lflop.gap = 0x1b; 127 lflop.rate = FDC_500KBPS; 128 break; 129 case 300 * 1024: 130 lflop.spec1 = 0xdf; 131 lflop.gap = 0x23; 132 lflop.rate = FDC_300KBPS; 133 break; 134 case 250 * 1024: 135 lflop.spec1 = 0xdf; 136 lflop.gap = 0x2a; 137 lflop.rate = FDC_250KBPS; 138 break; 139 } 140 error = copyout(&lflop, SCARG(uap, data), sizeof lflop); 141 break; 142 case LINUX_FDSETPRM: 143 /* 144 * Should use FDIOCSETFORMAT here, iff its interface 145 * is extended. 146 */ 147 case LINUX_FDDEFPRM: 148 case LINUX_FDFMTBEG: 149 case LINUX_FDFMTTRK: 150 case LINUX_FDFMTEND: 151 case LINUX_FDSETEMSGTRESH: 152 case LINUX_FDFLUSH: 153 case LINUX_FDSETMAXERRS: 154 case LINUX_FDGETMAXERRS: 155 case LINUX_FDGETDRVTYP: 156 case LINUX_FDSETDRVPRM: 157 case LINUX_FDGETDRVPRM: 158 case LINUX_FDGETDRVSTAT: 159 case LINUX_FDRESET: 160 case LINUX_FDGETFDCSTAT: 161 case LINUX_FDWERRORCLR: 162 case LINUX_FDWERRORGET: 163 case LINUX_FDRAWCMD: 164 case LINUX_FDEJECT: 165 default: 166 error = EINVAL; 167 } 168 169 fd_putfile(SCARG(uap, fd)); 170 171 return 0; 172 } 173
Indexes created Sat Sep 20 22:09:52 GMT 2025