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 {
