| 1 | /* $NetBSD: linux_fdio.c,v 1.13 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_fdio.c,v 1.13 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 <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 | lflop.size = fparams.ncyl * fparams.nspt * fparams.ntrk; |
| 111 | lflop.sect = fparams.nspt; |
| 112 | lflop.head = fparams.ntrk; |
| 113 | lflop.track = fparams.ncyl; |
| 114 | lflop.stretch = fparams.stepspercyl == 2 ? 1 : 0; |
| 115 | lflop.fmt_gap = fparams.gaplen; |
| 116 | /* |
| 117 | * XXXX Use knowledge of floppy for these fields. |
| 118 | * FDIOCGETFORMAT does not provide enough information. |
| 119 | * It would be better to have FDIOCGETFORMAT return more |
| 120 | * information. |
| 121 | */ |
| 122 | switch (fparams.xfer_rate) { |
| 123 | case 500 * 1024: |
| 124 | lflop.spec1 = 0xcf; |
| 125 | lflop.gap = 0x1b; |
| 126 | lflop.rate = FDC_500KBPS; |
| 127 | break; |
| 128 | case 300 * 1024: |
| 129 | lflop.spec1 = 0xdf; |
| 130 | lflop.gap = 0x23; |
| 131 | lflop.rate = FDC_300KBPS; |
| 132 | break; |
| 133 | case 250 * 1024: |
| 134 | lflop.spec1 = 0xdf; |
| 135 | lflop.gap = 0x2a; |
| 136 | lflop.rate = FDC_250KBPS; |
| 137 | break; |
| 138 | } |
| 139 | error = copyout(&lflop, SCARG(uap, data), sizeof lflop); |
| 140 | break; |
| 141 | case LINUX_FDSETPRM: |
| 142 | /* |
| 143 | * Should use FDIOCSETFORMAT here, iff its interface |
| 144 | * is extended. |
| 145 | */ |
| 146 | case LINUX_FDDEFPRM: |
| 147 | case LINUX_FDFMTBEG: |
| 148 | case LINUX_FDFMTTRK: |
| 149 | case LINUX_FDFMTEND: |
| 150 | case LINUX_FDSETEMSGTRESH: |
| 151 | case LINUX_FDFLUSH: |
| 152 | case LINUX_FDSETMAXERRS: |
| 153 | case LINUX_FDGETMAXERRS: |
| 154 | case LINUX_FDGETDRVTYP: |
| 155 | case LINUX_FDSETDRVPRM: |
| 156 | case LINUX_FDGETDRVPRM: |
| 157 | case LINUX_FDGETDRVSTAT: |
| 158 | case LINUX_FDRESET: |
| 159 | case LINUX_FDGETFDCSTAT: |
| 160 | case LINUX_FDWERRORCLR: |
| 161 | case LINUX_FDWERRORGET: |
| 162 | case LINUX_FDRAWCMD: |
| 163 | case LINUX_FDEJECT: |
| 164 | default: |
| 165 | error = EINVAL; |
| 166 | } |
| 167 | |
| 168 | fd_putfile(SCARG(uap, fd)); |
| 169 | |
| 170 | return 0; |
| 171 | } |
| 172 | |