NetBSD/sys/compat/ossaudio/ossaudio.c

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/* $NetBSD: ossaudio.c,v 1.12 1997/07/15 07:46:09 augustss Exp $ */
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/vnode.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/audioio.h>
#include <sys/syscallargs.h>
#include <compat/ossaudio/ossaudio.h>
#include <compat/ossaudio/ossaudiovar.h>
static struct audiodevinfo *getdevinfo __P((struct file *, struct proc *));
int
oss_ioctl_audio(p, uap, retval)
register struct proc *p;
register struct oss_sys_ioctl_args /* {
syscallarg(int) fd;
syscallarg(u_long) com;
syscallarg(caddr_t) data;
} */ *uap;
register_t *retval;
{
register struct file *fp;
register struct filedesc *fdp;
u_long com;
struct audio_info tmpinfo;
int idat;
int error;
int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *));
fdp = p->p_fd;
if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
return (EBADF);
if ((fp->f_flag & (FREAD | FWRITE)) == 0)
return (EBADF);
ioctlf = fp->f_ops->fo_ioctl;
com = SCARG(uap, com);
retval[0] = 0;
switch (com) {
case OSS_SNDCTL_DSP_RESET:
error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, p);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_SYNC:
case OSS_SNDCTL_DSP_POST:
error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, p);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_SPEED:
AUDIO_INITINFO(&tmpinfo);
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
tmpinfo.play.sample_rate =
tmpinfo.record.sample_rate = idat;
(void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
/* fall into ... */
case OSS_SOUND_PCM_READ_RATE:
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
idat = tmpinfo.play.sample_rate;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_STEREO:
AUDIO_INITINFO(&tmpinfo);
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
tmpinfo.play.channels =
tmpinfo.record.channels = idat ? 2 : 1;
(void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
idat = tmpinfo.play.channels - 1;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_GETBLKSIZE:
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
idat = tmpinfo.blocksize;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_SETFMT:
AUDIO_INITINFO(&tmpinfo);
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
switch (idat) {
case OSS_AFMT_MU_LAW:
tmpinfo.play.precision =
tmpinfo.record.precision = 8;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_ULAW;
break;
case OSS_AFMT_A_LAW:
tmpinfo.play.precision =
tmpinfo.record.precision = 8;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_ALAW;
break;
case OSS_AFMT_U8:
tmpinfo.play.precision =
tmpinfo.record.precision = 8;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR;
break;
case OSS_AFMT_S8:
tmpinfo.play.precision =
tmpinfo.record.precision = 8;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR;
break;
case OSS_AFMT_S16_LE:
tmpinfo.play.precision =
tmpinfo.record.precision = 16;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE;
break;
case OSS_AFMT_S16_BE:
tmpinfo.play.precision =
tmpinfo.record.precision = 16;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_BE;
break;
case OSS_AFMT_U16_LE:
tmpinfo.play.precision =
tmpinfo.record.precision = 16;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_LE;
break;
case OSS_AFMT_U16_BE:
tmpinfo.play.precision =
tmpinfo.record.precision = 16;
tmpinfo.play.encoding =
tmpinfo.record.encoding = AUDIO_ENCODING_ULINEAR_BE;
break;
default:
return EINVAL;
}
(void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
/* fall into ... */
case OSS_SOUND_PCM_READ_BITS:
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
switch (tmpinfo.play.encoding) {
case AUDIO_ENCODING_ULAW:
idat = OSS_AFMT_MU_LAW;
break;
case AUDIO_ENCODING_ALAW:
idat = OSS_AFMT_A_LAW;
break;
case AUDIO_ENCODING_SLINEAR_LE:
if (tmpinfo.play.precision == 16)
idat = OSS_AFMT_S16_LE;
else
idat = OSS_AFMT_S8;
break;
case AUDIO_ENCODING_SLINEAR_BE:
if (tmpinfo.play.precision == 16)
idat = OSS_AFMT_S16_BE;
else
idat = OSS_AFMT_S8;
break;
case AUDIO_ENCODING_ULINEAR_LE:
if (tmpinfo.play.precision == 16)
idat = OSS_AFMT_U16_LE;
else
idat = OSS_AFMT_U8;
break;
case AUDIO_ENCODING_ULINEAR_BE:
if (tmpinfo.play.precision == 16)
idat = OSS_AFMT_U16_BE;
else
idat = OSS_AFMT_U8;
break;
case AUDIO_ENCODING_ADPCM:
idat = OSS_AFMT_IMA_ADPCM;
break;
}
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_CHANNELS:
AUDIO_INITINFO(&tmpinfo);
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
tmpinfo.play.channels =
tmpinfo.record.channels = idat;
(void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
/* fall into ... */
case OSS_SOUND_PCM_READ_CHANNELS:
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
idat = tmpinfo.play.channels;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SOUND_PCM_WRITE_FILTER:
case OSS_SOUND_PCM_READ_FILTER:
return EINVAL; /* XXX unimplemented */
case OSS_SNDCTL_DSP_SUBDIVIDE:
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
if (idat == 0)
idat = tmpinfo.buffersize / tmpinfo.blocksize;
idat = (tmpinfo.buffersize / idat) & -4;
AUDIO_INITINFO(&tmpinfo);
tmpinfo.blocksize = idat;
error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
idat = tmpinfo.buffersize / tmpinfo.blocksize;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_SETFRAGMENT:
AUDIO_INITINFO(&tmpinfo);
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17)
return EINVAL;
tmpinfo.blocksize = 1 << (idat & 0xffff);
tmpinfo.hiwat = (idat >> 16) & 0xffff;
(void) ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p);
error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p);
if (error)
return error;
idat = tmpinfo.blocksize;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_GETFMTS:
idat = OSS_AFMT_MU_LAW | OSS_AFMT_U8 | OSS_AFMT_S16_LE;
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_GETOSPACE:
case OSS_SNDCTL_DSP_GETISPACE:
case OSS_SNDCTL_DSP_NONBLOCK:
return EINVAL; /* XXX unimplemented */
case OSS_SNDCTL_DSP_GETCAPS:
idat = 0; /* XXX full duplex info should be set */
error = copyout(&idat, SCARG(uap, data), sizeof idat);
if (error)
return error;
break;
case OSS_SNDCTL_DSP_GETTRIGGER:
case OSS_SNDCTL_DSP_SETTRIGGER:
case OSS_SNDCTL_DSP_GETIPTR:
case OSS_SNDCTL_DSP_GETOPTR:
case OSS_SNDCTL_DSP_MAPINBUF:
case OSS_SNDCTL_DSP_MAPOUTBUF:
case OSS_SNDCTL_DSP_SETSYNCRO:
case OSS_SNDCTL_DSP_SETDUPLEX:
case OSS_SNDCTL_DSP_PROFILE:
return EINVAL; /* XXX unimplemented */
default:
return EINVAL;
}
return 0;
}
/* If the NetBSD mixer device should have more than 32 devices
* some will not be available to Linux */
#define NETBSD_MAXDEVS 32
struct audiodevinfo {
int done;
dev_t dev;
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int16_t devmap[OSS_SOUND_MIXER_NRDEVICES],
rdevmap[NETBSD_MAXDEVS];
u_long devmask, recmask, stereomask;
u_long caps, source;
};
/*
* Collect the audio device information to allow faster
* emulation of the Linux mixer ioctls. Cache the information
* to eliminate the overhead of repeating all the ioctls needed
* to collect the information.
*/
static struct audiodevinfo *
getdevinfo(fp, p)
struct file *fp;
struct proc *p;
{
mixer_devinfo_t mi;
int i;
static struct {
char *name;
int code;
} *dp, devs[] = {
{ AudioNmicrophone, OSS_SOUND_MIXER_MIC },
{ AudioNline, OSS_SOUND_MIXER_LINE },
{ AudioNcd, OSS_SOUND_MIXER_CD },
{ AudioNdac, OSS_SOUND_MIXER_PCM },
{ AudioNrecord, OSS_SOUND_MIXER_IMIX },
{ AudioNvolume, OSS_SOUND_MIXER_VOLUME },
{ AudioNtreble, OSS_SOUND_MIXER_TREBLE },
{ AudioNbass, OSS_SOUND_MIXER_BASS },
{ AudioNspeaker, OSS_SOUND_MIXER_SPEAKER },
/* { AudioNheadphone, ?? },*/
{ AudioNoutput, OSS_SOUND_MIXER_OGAIN },
{ AudioNinput, OSS_SOUND_MIXER_IGAIN },
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{ AudioNmaster, OSS_SOUND_MIXER_SPEAKER },
/* { AudioNstereo, ?? },*/
/* { AudioNmono, ?? },*/
{ AudioNfmsynth, OSS_SOUND_MIXER_SYNTH },
/* { AudioNwave, OSS_SOUND_MIXER_PCM },*/
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{ AudioNmidi, OSS_SOUND_MIXER_SYNTH },
/* { AudioNmixerout, ?? },*/
{ 0, -1 }
};
int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *)) =
fp->f_ops->fo_ioctl;
struct vnode *vp;
struct vattr va;
static struct audiodevinfo devcache = { 0 };
struct audiodevinfo *di = &devcache;
/* Figure out what device it is so we can check if the
* cached data is valid.
*/
vp = (struct vnode *)fp->f_data;
if (vp->v_type != VCHR)
return 0;
if (VOP_GETATTR(vp, &va, p->p_ucred, p))
return 0;
if (di->done && di->dev == va.va_rdev)
return di;
di->done = 1;
di->dev = va.va_rdev;
di->devmask = 0;
di->recmask = 0;
di->stereomask = 0;
di->source = -1;
di->caps = 0;
for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
di->devmap[i] = -1;
for(i = 0; i < NETBSD_MAXDEVS; i++)
di->rdevmap[i] = -1;
for(i = 0; i < NETBSD_MAXDEVS; i++) {
mi.index = i;
if (ioctlf(fp, AUDIO_MIXER_DEVINFO, (caddr_t)&mi, p) < 0)
break;
switch(mi.type) {
case AUDIO_MIXER_VALUE:
for(dp = devs; dp->name; dp++)
if (strcmp(dp->name, mi.label.name) == 0)
break;
if (dp->code >= 0) {
di->devmap[dp->code] = i;
di->rdevmap[i] = dp->code;
di->devmask |= 1 << dp->code;
if (mi.un.v.num_channels == 2)
di->stereomask |= 1 << dp->code;
}
break;
case AUDIO_MIXER_ENUM:
if (strcmp(mi.label.name, AudioNsource) == 0) {
int j;
di->source = i;
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for(j = 0; j < mi.un.e.num_mem; j++)
di->recmask |= 1 << di->rdevmap[mi.un.e.member[j].ord];
di->caps = OSS_SOUND_CAP_EXCL_INPUT;
}
break;
case AUDIO_MIXER_SET:
if (strcmp(mi.label.name, AudioNsource) == 0) {
int j;
di->source = i;
for(j = 0; j < mi.un.s.num_mem; j++) {
int k, mask = mi.un.s.member[j].mask;
if (mask) {
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for(k = 0; !(mask & 1); mask >>= 1, k++)
;
di->recmask |= 1 << di->rdevmap[k];
}
}
}
break;
}
}
return di;
}
int
oss_ioctl_mixer(p, uap, retval)
register struct proc *p;
register struct oss_sys_ioctl_args /* {
syscallarg(int) fd;
syscallarg(u_long) com;
syscallarg(caddr_t) data;
} */ *uap;
register_t *retval;
{
struct file *fp;
struct filedesc *fdp;
u_long com;
struct audiodevinfo *di;
mixer_ctrl_t mc;
int idat;
int i;
int error;
int l, r, n;
int (*ioctlf) __P((struct file *, u_long, caddr_t, struct proc *));
fdp = p->p_fd;
if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
return (EBADF);
if ((fp->f_flag & (FREAD | FWRITE)) == 0)
return (EBADF);
com = SCARG(uap, com);
retval[0] = 0;
di = getdevinfo(fp, p);
if (di == 0)
return EINVAL;
ioctlf = fp->f_ops->fo_ioctl;
switch (com) {
case OSS_SOUND_MIXER_READ_RECSRC:
if (di->source == -1)
return EINVAL;
mc.dev = di->source;
if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
mc.type = AUDIO_MIXER_ENUM;
error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
if (error)
return error;
idat = 1 << di->rdevmap[mc.un.ord];
} else {
int k;
unsigned int mask;
mc.type = AUDIO_MIXER_SET;
error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
if (error)
return error;
idat = 0;
for(mask = mc.un.mask, k = 0; mask; mask >>= 1, k++)
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if (mask & 1)
idat |= 1 << di->rdevmap[k];
}
break;
case OSS_SOUND_MIXER_READ_DEVMASK:
idat = di->devmask;
break;
case OSS_SOUND_MIXER_READ_RECMASK:
idat = di->recmask;
break;
case OSS_SOUND_MIXER_READ_STEREODEVS:
idat = di->stereomask;
break;
case OSS_SOUND_MIXER_READ_CAPS:
idat = di->caps;
break;
case OSS_SOUND_MIXER_WRITE_RECSRC:
if (di->source == -1)
return EINVAL;
mc.dev = di->source;
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
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if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
mc.type = AUDIO_MIXER_ENUM;
for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++)
if (idat & (1 << i))
break;
if (i >= OSS_SOUND_MIXER_NRDEVICES ||
di->devmap[i] == -1)
return EINVAL;
mc.un.ord = di->devmap[i];
} else {
mc.type = AUDIO_MIXER_SET;
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mc.un.mask = 0;
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for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) {
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if (idat & (1 << i)) {
if (di->devmap[i] == -1)
return EINVAL;
mc.un.mask |= 1 << di->devmap[i];
}
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}
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}
return ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p);
default:
if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com &&
com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) {
n = OSS_GET_DEV(com);
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if (di->devmap[n] == -1)
return EINVAL;
mc.dev = di->devmap[n];
mc.type = AUDIO_MIXER_VALUE;
doread:
mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1;
error = ioctlf(fp, AUDIO_MIXER_READ, (caddr_t)&mc, p);
if (error)
return error;
if (mc.type != AUDIO_MIXER_VALUE)
return EINVAL;
if (mc.un.value.num_channels != 2) {
l = r = mc.un.value.level[AUDIO_MIXER_LEVEL_MONO];
} else {
l = mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT];
r = mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT];
}
l = l * 100 / 255;
r = r * 100 / 255;
idat = l | (r << 8);
break;
} else if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com &&
com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) {
n = OSS_GET_DEV(com);
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if (di->devmap[n] == -1)
return EINVAL;
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
return error;
l = (idat & 0xff) * 255 / 100;
r = (idat >> 8) * 255 / 100;
mc.dev = di->devmap[n];
mc.type = AUDIO_MIXER_VALUE;
if (di->stereomask & (1<<n)) {
mc.un.value.num_channels = 2;
mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] = l;
mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] = r;
} else {
mc.un.value.num_channels = 1;
mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] = (l+r)/2;
}
error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p);
if (error)
return error;
goto doread;
} else
return EINVAL;
}
return copyout(&idat, SCARG(uap, data), sizeof idat);
}
/* XXX hook for sequencer emulation */
int
oss_ioctl_sequencer(p, uap, retval)
register struct proc *p;
register struct oss_sys_ioctl_args /* {
syscallarg(int) fd;
syscallarg(u_long) com;
syscallarg(caddr_t) data;
} */ *uap;
register_t *retval;
{
register struct file *fp;
register struct filedesc *fdp;
#if 0
u_long com;
int idat;
int error;
#endif
fdp = p->p_fd;
if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
return (EBADF);
if ((fp->f_flag & (FREAD | FWRITE)) == 0)
return (EBADF);
#if 0
com = SCARG(uap, com);
#endif
retval[0] = 0;
return EINVAL;
}