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/* $OpenBSD: bsdos_ioctl.c,v 1.2 2002/03/14 01:26:49 millert Exp $ */
/*
* Copyright (c) 1999 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
#include <compat/bsdos/bsdos_syscallargs.h>
#include <compat/bsdos/bsdos_ioctl.h>
#include <compat/ossaudio/ossaudio.h>
#include <compat/ossaudio/ossaudiovar.h>
#include <compat/common/compat_util.h>
static void bsdos_to_oss(struct bsdos_sys_ioctl_args *, struct oss_sys_ioctl_args *);
/*
* BSD/OS and OSS have different values for IOC_*. Also,
* sizeof(bsdos_audio_buf_info) != sizeof(oss_audio_buf_info) which
* is encoded in OSS_SNDCTL_DSP_GETOSPACE and OSS_SNDCTL_DSP_GETISPACE.
*/
static void
bsdos_to_oss(bap, oap)
struct bsdos_sys_ioctl_args *bap;
struct oss_sys_ioctl_args *oap;
{
u_long bcom, ocom;
bcom = SCARG(bap, com);
ocom = bcom & ~BSDOS_IOC_DIRMASK;
switch (bcom & BSDOS_IOC_DIRMASK) {
case BSDOS_IOC_VOID:
ocom |= OSS_IOC_VOID;
break;
case BSDOS_IOC_OUT:
if (bcom == BSDOS_SNDCTL_DSP_GETOSPACE)
ocom = OSS_SNDCTL_DSP_GETOSPACE;
else if (bcom == BSDOS_SNDCTL_DSP_GETISPACE)
ocom = OSS_SNDCTL_DSP_GETISPACE;
else
ocom |= OSS_IOC_OUT;
break;
case BSDOS_IOC_IN:
ocom |= OSS_IOC_IN;
break;
case BSDOS_IOC_INOUT:
ocom |= OSS_IOC_INOUT;
break;
}
SCARG(oap, fd) = SCARG(bap, fd);
SCARG(oap, com) = ocom;
SCARG(oap, data) = SCARG(bap, data);
}
int
bsdos_sys_ioctl(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct bsdos_sys_ioctl_args /* {
syscallarg(int) fd;
syscallarg(u_long) com;
syscallarg(caddr_t) data;
} */ *uap = v;
struct oss_sys_ioctl_args ap;
/*
* XXX should support 'T' timer ioctl's
* XXX also /dev/sequencer and /dev/patmgr#
*/
switch (BSDOS_IOCGROUP(SCARG(uap, com))) {
case 'M':
bsdos_to_oss(uap, &ap);
return (oss_ioctl_mixer(p, &ap, retval));
case 'Q':
bsdos_to_oss(uap, &ap);
return (oss_ioctl_sequencer(p, &ap, retval));
case 'P':
bsdos_to_oss(uap, &ap);
/*
* Special handling since the BSD/OS audio_buf_info
* struct lacks a fragstotal member.
*/
if (SCARG(uap, com) == BSDOS_SNDCTL_DSP_GETOSPACE ||
SCARG(uap, com) == BSDOS_SNDCTL_DSP_GETISPACE)
{
struct oss_audio_buf_info oss_buf, *oss_bufp;
struct bsdos_audio_buf_info bsdos_buf;
caddr_t sg = stackgap_init(p->p_emul);
int error;
oss_bufp = stackgap_alloc(&sg, sizeof(*oss_bufp));
SCARG(&ap, data) = (void *) oss_bufp;
error = oss_ioctl_audio(p, &ap, retval);
if (error)
return (error);
error = copyin(oss_bufp, &oss_buf, sizeof(oss_buf));
if (error)
return (error);
bsdos_buf.fragments = oss_buf.fragstotal;
bsdos_buf.fragsize = oss_buf.fragsize;
bsdos_buf.bytes = oss_buf.bytes;
error = copyout(&bsdos_buf, SCARG(uap, data),
sizeof(bsdos_buf));
if (error)
return (error);
} else
return (oss_ioctl_audio(p, &ap, retval));
}
return (sys_ioctl(p, uap, retval));
}
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