int
oss_ioctl_mixer(struct lwp *lwp, const struct oss_sys_ioctl_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(u_long) com;
syscallarg(void *) data;
} */
file_t *fp;
u_long com;
struct audiodevinfo *di;
mixer_ctrl_t mc;
struct oss_mixer_info omi;
struct audio_device adev;
int idat;
int i;
int error;
int l, r, n, e;
int (*ioctlf)(file_t *, u_long, void *);
if ((fp = fd_getfile(SCARG(uap, fd))) == NULL)
return (EBADF);
if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
error = EBADF;
goto out;
}
com = SCARG(uap, com);
DPRINTF(("oss_ioctl_mixer: com=%08lx\n", com));
retval[0] = 0;
di = getdevinfo(fp);
if (di == 0) {
error = EINVAL;
goto out;
}
ioctlf = fp->f_ops->fo_ioctl;
switch (com) {
case OSS_GET_VERSION:
idat = OSS_SOUND_VERSION;
break;
case OSS_SOUND_MIXER_INFO:
case OSS_SOUND_OLD_MIXER_INFO:
error = ioctlf(fp, AUDIO_GETDEV, &adev);
if (error)
goto out;
omi.modify_counter = 1;
strncpy(omi.id, adev.name, sizeof omi.id);
strncpy(omi.name, adev.name, sizeof omi.name);
error = copyout(&omi, SCARG(uap, data), OSS_IOCTL_SIZE(com));
goto out;
case OSS_SOUND_MIXER_READ_RECSRC:
if (di->source == -1) {
error = EINVAL;
goto out;
}
mc.dev = di->source;
if (di->caps & OSS_SOUND_CAP_EXCL_INPUT) {
mc.type = AUDIO_MIXER_ENUM;
error = ioctlf(fp, AUDIO_MIXER_READ, &mc);
if (error)
goto out;
e = opaque_to_enum(di, NULL, mc.un.ord);
if (e >= 0)
idat = 1 << di->rdevmap[e];
} else {
mc.type = AUDIO_MIXER_SET;
error = ioctlf(fp, AUDIO_MIXER_READ, &mc);
if (error)
goto out;
e = opaque_to_enum(di, NULL, mc.un.mask);
if (e >= 0)
idat = 1 << di->rdevmap[e];
}
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:
case OSS_SOUND_MIXER_WRITE_R_RECSRC:
if (di->source == -1) {
error = EINVAL;
goto out;
}
mc.dev = di->source;
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
goto out;
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) {
error = EINVAL;
goto out;
}
mc.un.ord = enum_to_ord(di, di->devmap[i]);
} else {
mc.type = AUDIO_MIXER_SET;
mc.un.mask = 0;
for(i = 0; i < OSS_SOUND_MIXER_NRDEVICES; i++) {
if (idat & (1 << i)) {
if (di->devmap[i] == -1) {
error = EINVAL;
goto out;
}
mc.un.mask |= enum_to_mask(di, di->devmap[i]);
}
}
}
error = ioctlf(fp, AUDIO_MIXER_WRITE, &mc);
goto out;
default:
if (OSS_MIXER_READ(OSS_SOUND_MIXER_FIRST) <= com &&
com < OSS_MIXER_READ(OSS_SOUND_MIXER_NRDEVICES)) {
n = OSS_GET_DEV(com);
if (di->devmap[n] == -1) {
error = EINVAL;
goto out;
}
doread:
mc.dev = di->devmap[n];
mc.type = AUDIO_MIXER_VALUE;
mc.un.value.num_channels = di->stereomask & (1<<n) ? 2 : 1;
error = ioctlf(fp, AUDIO_MIXER_READ, &mc);
if (error)
goto out;
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];
}
idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8);
DPRINTF(("OSS_MIXER_READ n=%d (dev=%d) l=%d, r=%d, idat=%04x\n",
n, di->devmap[n], l, r, idat));
break;
} else if ((OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_FIRST) <= com &&
com < OSS_MIXER_WRITE_R(OSS_SOUND_MIXER_NRDEVICES)) ||
(OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com &&
com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES))) {
n = OSS_GET_DEV(com);
if (di->devmap[n] == -1) {
error = EINVAL;
goto out;
}
error = copyin(SCARG(uap, data), &idat, sizeof idat);
if (error)
goto out;
l = FROM_OSSVOL( idat & 0xff);
r = FROM_OSSVOL((idat >> 8) & 0xff);
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;
}
DPRINTF(("OSS_MIXER_WRITE n=%d (dev=%d) l=%d, r=%d, idat=%04x\n",
n, di->devmap[n], l, r, idat));
error = ioctlf(fp, AUDIO_MIXER_WRITE, &mc);
if (error)
goto out;
if (OSS_MIXER_WRITE(OSS_SOUND_MIXER_FIRST) <= com &&
com < OSS_MIXER_WRITE(OSS_SOUND_MIXER_NRDEVICES)) {
error = 0;
goto out;
}
goto doread;
} else {
int
mixer_ioctl(int fd, unsigned long com, void *argp)
{
struct audiodevinfo *di;
struct mixer_info *omi;
struct audio_device adev;
mixer_ctrl_t mc;
int idat = 0;
int i;
int retval;
int l, r, n, error, e;
di = getdevinfo(fd);
if (di == 0)
return -1;
switch (com) {
case OSS_GETVERSION:
idat = SOUND_VERSION;
break;
case SOUND_MIXER_INFO:
case SOUND_OLD_MIXER_INFO:
error = ioctl(fd, AUDIO_GETDEV, &adev);
if (error)
return (error);
omi = argp;
if (com == SOUND_MIXER_INFO)
omi->modify_counter = 1;
strncpy(omi->id, adev.name, sizeof omi->id);
strncpy(omi->name, adev.name, sizeof omi->name);
return 0;
case SOUND_MIXER_READ_RECSRC:
if (di->recsource == -1)
return EINVAL;
mc.dev = di->recsource;
if (di->caps & SOUND_CAP_EXCL_INPUT) {
mc.type = AUDIO_MIXER_ENUM;
retval = ioctl(fd, AUDIO_MIXER_READ, &mc);
if (retval < 0)
return retval;
e = opaque_to_enum(di, NULL, mc.un.ord);
if (e >= 0)
idat = 1 << di->rdevmap[e];
} else {
mc.type = AUDIO_MIXER_SET;
retval = ioctl(fd, AUDIO_MIXER_READ, &mc);
if (retval < 0)
return retval;
e = opaque_to_enum(di, NULL, mc.un.mask);
if (e >= 0)
idat = 1 << di->rdevmap[e];
}
break;
case SOUND_MIXER_READ_DEVMASK:
idat = di->devmask;
break;
case SOUND_MIXER_READ_RECMASK:
idat = di->recmask;
break;
case SOUND_MIXER_READ_STEREODEVS:
idat = di->stereomask;
break;
case SOUND_MIXER_READ_CAPS:
idat = di->caps;
break;
case SOUND_MIXER_WRITE_RECSRC:
case SOUND_MIXER_WRITE_R_RECSRC:
if (di->recsource == -1)
return EINVAL;
mc.dev = di->recsource;
idat = INTARG;
if (di->caps & SOUND_CAP_EXCL_INPUT) {
mc.type = AUDIO_MIXER_ENUM;
for(i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if (idat & (1 << i))
break;
if (i >= SOUND_MIXER_NRDEVICES ||
di->devmap[i] == -1)
return EINVAL;
mc.un.ord = enum_to_ord(di, di->devmap[i]);
} else {
mc.type = AUDIO_MIXER_SET;
mc.un.mask = 0;
for(i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
if (idat & (1 << i)) {
if (di->devmap[i] == -1)
return EINVAL;
mc.un.mask |= enum_to_mask(di, di->devmap[i]);
}
}
}
return ioctl(fd, AUDIO_MIXER_WRITE, &mc);
default:
if (MIXER_READ(SOUND_MIXER_FIRST) <= com &&
com < MIXER_READ(SOUND_MIXER_NRDEVICES)) {
n = GET_DEV(com);
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;
retval = ioctl(fd, AUDIO_MIXER_READ, &mc);
if (retval < 0)
return retval;
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];
}
idat = TO_OSSVOL(l) | (TO_OSSVOL(r) << 8);
break;
} else if ((MIXER_WRITE_R(SOUND_MIXER_FIRST) <= com &&
com < MIXER_WRITE_R(SOUND_MIXER_NRDEVICES)) ||
(MIXER_WRITE(SOUND_MIXER_FIRST) <= com &&
com < MIXER_WRITE(SOUND_MIXER_NRDEVICES))) {
n = GET_DEV(com);
if (di->devmap[n] == -1)
return EINVAL;
idat = INTARG;
l = FROM_OSSVOL( idat & 0xff);
r = FROM_OSSVOL((idat >> 8) & 0xff);
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;
}
retval = ioctl(fd, AUDIO_MIXER_WRITE, &mc);
if (retval < 0)
return retval;
if (MIXER_WRITE(SOUND_MIXER_FIRST) <= com &&
com < MIXER_WRITE(SOUND_MIXER_NRDEVICES))
return 0;
goto doread;
} else {
/*
* 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(file_t *fp)
{
mixer_devinfo_t mi;
int i, j, e;
static const struct {
const 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 },
{ AudioNaux, OSS_SOUND_MIXER_LINE1 },
{ AudioNrecord, OSS_SOUND_MIXER_IMIX },
{ AudioNmaster, 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 },
/* { AudioNmaster, OSS_SOUND_MIXER_SPEAKER },*/
/* { AudioNstereo, ?? },*/
/* { AudioNmono, ?? },*/
{ AudioNfmsynth, OSS_SOUND_MIXER_SYNTH },
/* { AudioNwave, OSS_SOUND_MIXER_PCM },*/
{ AudioNmidi, OSS_SOUND_MIXER_SYNTH },
/* { AudioNmixerout, ?? },*/
{ 0, -1 }
};
int (*ioctlf)(file_t *, u_long, void *) = fp->f_ops->fo_ioctl;
struct vnode *vp;
struct vattr va;
static struct audiodevinfo devcache;
struct audiodevinfo *di = &devcache;
int mlen, dlen;
/*
* Figure out what device it is so we can check if the
* cached data is valid.
*/
vp = fp->f_data;
if (vp->v_type != VCHR)
return 0;
if (VOP_GETATTR(vp, &va, kauth_cred_get()))
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 = ~0;
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;
di->names[i][0] = '\0';
di->enum2opaque[i] = -1;
}
for(i = 0; i < NETBSD_MAXDEVS; i++) {
mi.index = i;
if (ioctlf(fp, AUDIO_MIXER_DEVINFO, &mi) < 0)
break;
switch(mi.type) {
case AUDIO_MIXER_VALUE:
for(dp = devs; dp->name; dp++) {
if (strcmp(dp->name, mi.label.name) == 0)
break;
dlen = strlen(dp->name);
mlen = strlen(mi.label.name);
if (dlen < mlen
&& mi.label.name[mlen-dlen-1] == '.'
&& strcmp(dp->name, mi.label.name + mlen - dlen) == 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;
strncpy(di->names[i], mi.label.name,
sizeof di->names[i]);
}
break;
}
}
for(i = 0; i < NETBSD_MAXDEVS; i++) {
mi.index = i;
if (ioctlf(fp, AUDIO_MIXER_DEVINFO, &mi) < 0)
break;
if (strcmp(mi.label.name, AudioNsource) != 0)
continue;
di->source = i;
switch(mi.type) {
case AUDIO_MIXER_ENUM:
for(j = 0; j < mi.un.e.num_mem; j++) {
e = opaque_to_enum(di,
&mi.un.e.member[j].label,
mi.un.e.member[j].ord);
if (e >= 0)
di->recmask |= 1 << di->rdevmap[e];
}
di->caps = OSS_SOUND_CAP_EXCL_INPUT;
break;
case AUDIO_MIXER_SET:
for(j = 0; j < mi.un.s.num_mem; j++) {
e = opaque_to_enum(di,
&mi.un.s.member[j].label,
mi.un.s.member[j].mask);
if (e >= 0)
di->recmask |= 1 << di->rdevmap[e];
}
break;
}
}
return di;
}
/*
* 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(int fd)
{
mixer_devinfo_t mi, cl;
int i, j, e;
static struct {
char *name;
int code;
} *dp, devs[] = {
{ AudioNmicrophone, SOUND_MIXER_MIC },
{ AudioNline, SOUND_MIXER_LINE },
{ AudioNcd, SOUND_MIXER_CD },
{ AudioNdac, SOUND_MIXER_PCM },
{ AudioNaux, SOUND_MIXER_LINE1 },
{ AudioNrecord, SOUND_MIXER_IMIX },
{ AudioNmaster, SOUND_MIXER_VOLUME },
{ AudioNtreble, SOUND_MIXER_TREBLE },
{ AudioNbass, SOUND_MIXER_BASS },
{ AudioNspeaker, SOUND_MIXER_SPEAKER },
{ AudioNoutput, SOUND_MIXER_OGAIN },
{ AudioNinput, SOUND_MIXER_IGAIN },
{ AudioNfmsynth, SOUND_MIXER_SYNTH },
{ AudioNmidi, SOUND_MIXER_SYNTH },
{ 0, -1 }
};
static struct audiodevinfo devcache = { 0 };
struct audiodevinfo *di = &devcache;
struct stat sb;
/* Figure out what device it is so we can check if the
* cached data is valid.
*/
if (fstat(fd, &sb) < 0)
return 0;
if (di->done && (di->dev == sb.st_dev && di->ino == sb.st_ino))
return di;
di->done = 1;
di->dev = sb.st_dev;
di->ino = sb.st_ino;
di->devmask = 0;
di->recmask = 0;
di->stereomask = 0;
di->recsource = ~0;
di->caps = 0;
for(i = 0; i < SOUND_MIXER_NRDEVICES; i++)
di->devmap[i] = -1;
for(i = 0; i < MAX_MIXER_DEVS; i++) {
di->rdevmap[i] = -1;
di->names[i][0] = '\0';
di->enum2opaque[i] = -1;
}
for(i = 0; i < MAX_MIXER_DEVS; i++) {
mi.index = i;
if (ioctl(fd, AUDIO_MIXER_DEVINFO, &mi) < 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;
strncpy(di->names[i], mi.label.name,
sizeof di->names[i]);
}
break;
}
}
for(i = 0; i < MAX_MIXER_DEVS; i++) {
mi.index = i;
if (ioctl(fd, AUDIO_MIXER_DEVINFO, &mi) < 0)
break;
if (strcmp(mi.label.name, AudioNsource) != 0)
continue;
cl.index = mi.mixer_class;
if (ioctl(fd, AUDIO_MIXER_DEVINFO, &cl) < 0)
break;
if ((cl.type != AUDIO_MIXER_CLASS) ||
(strcmp(cl.label.name, AudioCrecord) != 0))
continue;
di->recsource = i;
switch(mi.type) {
case AUDIO_MIXER_ENUM:
for(j = 0; j < mi.un.e.num_mem; j++) {
e = opaque_to_enum(di,
&mi.un.e.member[j].label,
mi.un.e.member[j].ord);
if (e >= 0)
di->recmask |= 1 << di->rdevmap[e];
}
di->caps = SOUND_CAP_EXCL_INPUT;
break;
case AUDIO_MIXER_SET:
for(j = 0; j < mi.un.s.num_mem; j++) {
e = opaque_to_enum(di,
&mi.un.s.member[j].label,
mi.un.s.member[j].mask);
if (e >= 0)
di->recmask |= 1 << di->rdevmap[e];
}
break;
}
}
return di;
}
