1 /* $NetBSD: linux_fdio.c,v 1.5 2003/03/21 21:13:53 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_fdio.c,v 1.5 2003/03/21 21:13:53 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 <sys/fdio.h> 51 52 #include <sys/sa.h> 53 #include <sys/syscallargs.h> 54 55 #include <dev/isa/fdreg.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_fdio.h> 62 63 #include <compat/linux/linux_syscallargs.h> 64 65 int 66 linux_ioctl_fdio(struct proc *p, struct linux_sys_ioctl_args *uap, 67 register_t *retval) 68 { 69 struct filedesc *fdp; 70 struct file *fp; 71 int error; 72 int (*ioctlf)(struct file *, u_long, void *, struct proc *); 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 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 89 retval[0] = error = 0; 90 91 switch (com) { 92 case LINUX_FDMSGON: 93 case LINUX_FDMSGOFF: 94 case LINUX_FDTWADDLE: 95 case LINUX_FDCLRPRM: 96 /* whatever you say */ 97 break; 98 case LINUX_FDPOLLDRVSTAT: 99 /* 100 * Just fill in some innocent defaults. 101 */ 102 memset(&ldrive, 0, sizeof ldrive); 103 ldrive.fd_ref = 1; 104 ldrive.maxblock = 2; 105 ldrive.maxtrack = ldrive.track = 1; 106 ldrive.flags = LINUX_FD_DISK_WRITABLE; 107 error = copyout(&ldrive, SCARG(uap, data), sizeof ldrive); 108 break; 109 case LINUX_FDGETPRM: 110 error = ioctlf(fp, FDIOCGETFORMAT, (caddr_t)&fparams, p); 111 if (error != 0) 112 break; 113 lflop.size = fparams.ncyl * fparams.nspt * fparams.ntrk; 114 lflop.sect = fparams.nspt; 115 lflop.head = fparams.ntrk; 116 lflop.track = fparams.ncyl; 117 lflop.stretch = fparams.stepspercyl == 2 ? 1 : 0; 118 lflop.fmt_gap = fparams.gaplen; 119 /* 120 * XXXX Use knowledge of floppy for these fields. 121 * FDIOCGETFORMAT does not provide enough information. 122 * It would be better to have FDIOCGETFORMAT return more 123 * information. 124 */ 125 switch (fparams.xfer_rate) { 126 case 500 * 1024: 127 lflop.spec1 = 0xcf; 128 lflop.gap = 0x1b; 129 lflop.rate = FDC_500KBPS; 130 break; 131 case 300 * 1024: 132 lflop.spec1 = 0xdf; 133 lflop.gap = 0x23; 134 lflop.rate = FDC_300KBPS; 135 break; 136 case 250 * 1024: 137 lflop.spec1 = 0xdf; 138 lflop.gap = 0x2a; 139 lflop.rate = FDC_250KBPS; 140 break; 141 } 142 error = copyout(&lflop, SCARG(uap, data), sizeof lflop); 143 break; 144 case LINUX_FDSETPRM: 145 /* 146 * Should use FDIOCSETFORMAT here, iff its interface 147 * is extended. 148 */ 149 case LINUX_FDDEFPRM: 150 case LINUX_FDFMTBEG: 151 case LINUX_FDFMTTRK: 152 case LINUX_FDFMTEND: 153 case LINUX_FDSETEMSGTRESH: 154 case LINUX_FDFLUSH: 155 case LINUX_FDSETMAXERRS: 156 case LINUX_FDGETMAXERRS: 157 case LINUX_FDGETDRVTYP: 158 case LINUX_FDSETDRVPRM: 159 case LINUX_FDGETDRVPRM: 160 case LINUX_FDGETDRVSTAT: 161 case LINUX_FDRESET: 162 case LINUX_FDGETFDCSTAT: 163 case LINUX_FDWERRORCLR: 164 case LINUX_FDWERRORGET: 165 case LINUX_FDRAWCMD: 166 case LINUX_FDEJECT: 167 default: 168 error = EINVAL; 169 } 170 171 FILE_UNUSE(fp, p); 172 173 return 0; 174 } 175