Return to bsdos_ioctl.c CVS log

Up to [local] / sys / compat / bsdos

Annotation of sys/compat/bsdos/bsdos_ioctl.c, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: bsdos_ioctl.c,v 1.4 2003/06/17 21:56:25 millert Exp $ */
        !             2:
        !             3: /*
        !             4:  * Copyright (c) 1999 Todd C. Miller <Todd.Miller@courtesan.com>
        !             5:  *
        !             6:  * Permission to use, copy, modify, and distribute this software for any
        !             7:  * purpose with or without fee is hereby granted, provided that the above
        !             8:  * copyright notice and this permission notice appear in all copies.
        !             9:  *
        !            10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            17:  */
        !            18:
        !            19: #include <sys/param.h>
        !            20: #include <sys/systm.h>
        !            21: #include <sys/proc.h>
        !            22: #include <sys/mount.h>
        !            23:
        !            24: #include <sys/syscallargs.h>
        !            25:
        !            26: #include <compat/bsdos/bsdos_syscallargs.h>
        !            27: #include <compat/bsdos/bsdos_ioctl.h>
        !            28:
        !            29: #include <compat/ossaudio/ossaudio.h>
        !            30: #include <compat/ossaudio/ossaudiovar.h>
        !            31:
        !            32: #include <compat/common/compat_util.h>
        !            33:
        !            34: static void bsdos_to_oss(struct bsdos_sys_ioctl_args *, struct oss_sys_ioctl_args *);
        !            35:
        !            36: /*
        !            37:  * BSD/OS and OSS have different values for IOC_*.  Also,
        !            38:  * sizeof(bsdos_audio_buf_info) != sizeof(oss_audio_buf_info) which
        !            39:  * is encoded in OSS_SNDCTL_DSP_GETOSPACE and OSS_SNDCTL_DSP_GETISPACE.
        !            40:  */
        !            41: static void
        !            42: bsdos_to_oss(bap, oap)
        !            43:        struct bsdos_sys_ioctl_args *bap;
        !            44:        struct oss_sys_ioctl_args *oap;
        !            45: {
        !            46:        u_long bcom, ocom;
        !            47:
        !            48:        bcom = SCARG(bap, com);
        !            49:        ocom = bcom & ~BSDOS_IOC_DIRMASK;
        !            50:        switch (bcom & BSDOS_IOC_DIRMASK) {
        !            51:        case BSDOS_IOC_VOID:
        !            52:                ocom |= OSS_IOC_VOID;
        !            53:                break;
        !            54:        case BSDOS_IOC_OUT:
        !            55:                if (bcom == BSDOS_SNDCTL_DSP_GETOSPACE)
        !            56:                        ocom = OSS_SNDCTL_DSP_GETOSPACE;
        !            57:                else if (bcom == BSDOS_SNDCTL_DSP_GETISPACE)
        !            58:                        ocom = OSS_SNDCTL_DSP_GETISPACE;
        !            59:                else
        !            60:                        ocom |= OSS_IOC_OUT;
        !            61:                break;
        !            62:        case BSDOS_IOC_IN:
        !            63:                ocom |= OSS_IOC_IN;
        !            64:                break;
        !            65:        case BSDOS_IOC_INOUT:
        !            66:                ocom |= OSS_IOC_INOUT;
        !            67:                break;
        !            68:        }
        !            69:        SCARG(oap, fd) = SCARG(bap, fd);
        !            70:        SCARG(oap, com) = ocom;
        !            71:        SCARG(oap, data) = SCARG(bap, data);
        !            72: }
        !            73:
        !            74: int
        !            75: bsdos_sys_ioctl(p, v, retval)
        !            76:        struct proc *p;
        !            77:        void *v;
        !            78:        register_t *retval;
        !            79: {
        !            80:        struct bsdos_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 should support 'T' timer ioctl's
        !            89:         * XXX also /dev/sequencer and /dev/patmgr#
        !            90:         */
        !            91:        switch (BSDOS_IOCGROUP(SCARG(uap, com))) {
        !            92:        case 'M':
        !            93:                bsdos_to_oss(uap, &ap);
        !            94:                return (oss_ioctl_mixer(p, &ap, retval));
        !            95:        case 'Q':
        !            96:                bsdos_to_oss(uap, &ap);
        !            97:                return (oss_ioctl_sequencer(p, &ap, retval));
        !            98:        case 'P':
        !            99:                bsdos_to_oss(uap, &ap);
        !           100:                /*
        !           101:                 * Special handling since the BSD/OS audio_buf_info
        !           102:                 * struct lacks a fragstotal member.
        !           103:                 */
        !           104:                if (SCARG(uap, com) == BSDOS_SNDCTL_DSP_GETOSPACE ||
        !           105:                    SCARG(uap, com) == BSDOS_SNDCTL_DSP_GETISPACE)
        !           106:                {
        !           107:                        struct oss_audio_buf_info oss_buf, *oss_bufp;
        !           108:                        struct bsdos_audio_buf_info bsdos_buf;
        !           109:                        caddr_t sg = stackgap_init(p->p_emul);
        !           110:                        int error;
        !           111:
        !           112:                        oss_bufp = stackgap_alloc(&sg, sizeof(*oss_bufp));
        !           113:                        SCARG(&ap, data) = (void *) oss_bufp;
        !           114:                        error = oss_ioctl_audio(p, &ap, retval);
        !           115:                        if (error)
        !           116:                                return (error);
        !           117:                        error = copyin(oss_bufp, &oss_buf, sizeof(oss_buf));
        !           118:                        if (error)
        !           119:                                return (error);
        !           120:                        bsdos_buf.fragments = oss_buf.fragstotal;
        !           121:                        bsdos_buf.fragsize = oss_buf.fragsize;
        !           122:                        bsdos_buf.bytes = oss_buf.bytes;
        !           123:                        error = copyout(&bsdos_buf, SCARG(uap, data),
        !           124:                            sizeof(bsdos_buf));
        !           125:                        if (error)
        !           126:                                return (error);
        !           127:                } else
        !           128:                        return (oss_ioctl_audio(p, &ap, retval));
        !           129:        }
        !           130:        return (sys_ioctl(p, uap, retval));
        !           131: }