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Annotation of sys/compat/freebsd/freebsd_ioctl.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: freebsd_ioctl.c,v 1.4 2001/02/03 02:45:31 mickey Exp $        */
        !             2: /*     $NetBSD: freebsd_ioctl.c,v 1.1 1995/10/10 01:19:31 mycroft Exp $        */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1995 Frank van der Linden
        !             6:  * All rights reserved.
        !             7:  *
        !             8:  * Redistribution and use in source and binary forms, with or without
        !             9:  * modification, are permitted provided that the following conditions
        !            10:  * are met:
        !            11:  * 1. Redistributions of source code must retain the above copyright
        !            12:  *    notice, this list of conditions and the following disclaimer.
        !            13:  * 2. Redistributions in binary form must reproduce the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer in the
        !            15:  *    documentation and/or other materials provided with the distribution.
        !            16:  * 3. All advertising materials mentioning features or use of this software
        !            17:  *    must display the following acknowledgement:
        !            18:  *      This product includes software developed for the NetBSD Project
        !            19:  *      by Frank van der Linden
        !            20:  * 4. The name of the author may not be used to endorse or promote products
        !            21:  *    derived from this software without specific prior written permission
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            24:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            25:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            26:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            27:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            28:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            29:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            30:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            31:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            32:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            33:  */
        !            34:
        !            35: #include <sys/param.h>
        !            36: #include <sys/systm.h>
        !            37: #include <sys/proc.h>
        !            38: #include <sys/mount.h>
        !            39:
        !            40: #include <sys/syscallargs.h>
        !            41:
        !            42: #include <compat/freebsd/freebsd_signal.h>
        !            43: #include <compat/freebsd/freebsd_syscallargs.h>
        !            44: #include <compat/freebsd/freebsd_util.h>
        !            45: #include <compat/freebsd/freebsd_ioctl.h>
        !            46:
        !            47: #include <compat/ossaudio/ossaudio.h>
        !            48: #include <compat/ossaudio/ossaudiovar.h>
        !            49:
        !            50: /* The FreeBSD and OSS(Linux) encodings of ioctl R/W differ. */
        !            51: static void freebsd_to_oss(struct freebsd_sys_ioctl_args *,
        !            52:                           struct oss_sys_ioctl_args *);
        !            53:
        !            54: static void
        !            55: freebsd_to_oss(uap, rap)
        !            56: struct freebsd_sys_ioctl_args *uap;
        !            57: struct oss_sys_ioctl_args *rap;
        !            58: {
        !            59:        u_long ocmd, ncmd;
        !            60:
        !            61:         ocmd = SCARG(uap, com);
        !            62:         ncmd = ocmd &~ FREEBSD_IOC_DIRMASK;
        !            63:        switch(ocmd & FREEBSD_IOC_DIRMASK) {
        !            64:         case FREEBSD_IOC_VOID:  ncmd |= OSS_IOC_VOID;  break;
        !            65:         case FREEBSD_IOC_OUT:   ncmd |= OSS_IOC_OUT;   break;
        !            66:         case FREEBSD_IOC_IN:    ncmd |= OSS_IOC_IN;    break;
        !            67:         case FREEBSD_IOC_INOUT: ncmd |= OSS_IOC_INOUT; break;
        !            68:         }
        !            69:         SCARG(rap, fd) = SCARG(uap, fd);
        !            70:         SCARG(rap, com) = ncmd;
        !            71:         SCARG(rap, data) = SCARG(uap, data);
        !            72: }
        !            73:
        !            74: int
        !            75: freebsd_sys_ioctl(p, v, retval)
        !            76:        struct proc *p;
        !            77:        void *v;
        !            78:        register_t *retval;
        !            79: {
        !            80:        struct freebsd_sys_ioctl_args /* {
        !            81:                syscallarg(int) fd;
        !            82:                syscallarg(u_long) com;
        !            83:                syscallarg(caddr_t) data;
        !            84:        } */ *uap = v;
        !            85:         struct oss_sys_ioctl_args ap;
        !            86:
        !            87:        /*
        !            88:         * XXX - <sys/cdio.h>'s incompatibility
        !            89:         *      _IO('c', 25..27, *):    incompatible
        !            90:         *      _IO('c', 28... , *):    not exist
        !            91:         */
        !            92:        /* XXX - <sys/mtio.h> */
        !            93:        /* XXX - <sys/scsiio.h> */
        !            94:        /* XXX - should convert machine dependent ioctl()s */
        !            95:
        !            96:        switch (FREEBSD_IOCGROUP(SCARG(uap, com))) {
        !            97:        case 'M':
        !            98:                freebsd_to_oss(uap, &ap);
        !            99:                return oss_ioctl_mixer(p, &ap, retval);
        !           100:        case 'Q':
        !           101:                freebsd_to_oss(uap, &ap);
        !           102:                return oss_ioctl_sequencer(p, &ap, retval);
        !           103:        case 'P':
        !           104:                freebsd_to_oss(uap, &ap);
        !           105:                return oss_ioctl_audio(p, &ap, retval);
        !           106:        default:
        !           107:                return sys_ioctl(p, uap, retval);
        !           108:        }
        !           109: }