/* $OpenBSD: ossaudio.c,v 1.14 2012/04/22 05:43:14 guenther Exp $ */ /* $NetBSD: ossaudio.c,v 1.23 1997/10/19 07:41:52 augustss Exp $ */ /* * Copyright (c) 1997 The NetBSD Foundation, Inc. * 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. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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 #include #include #include #include #include #include #include #include #include #include #include #ifdef AUDIO_DEBUG #define DPRINTF(x) if (ossdebug) printf x int ossdebug = 0; #else #define DPRINTF(x) #endif #define TO_OSSVOL(x) ((x) * 100 / 255) #define FROM_OSSVOL(x) ((x) * 255 / 100) static struct audiodevinfo *getdevinfo(struct file *, struct proc *); static void setblocksize(struct file *, struct audio_info *, struct proc *); int oss_ioctl_audio(p, uap, retval) struct proc *p; 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 audio_info tmpinfo; struct audio_offset tmpoffs; struct oss_audio_buf_info bufinfo; struct oss_count_info cntinfo; struct audio_encoding tmpenc; struct audio_bufinfo tmpab; u_long ldat; u_int u; int idat, idata; int error = 0, tmperr = 0; int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *); fdp = p->p_fd; if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) return (EBADF); FREF(fp); if ((fp->f_flag & (FREAD | FWRITE)) == 0) { FRELE(fp, p); return (EBADF); } ioctlf = fp->f_ops->fo_ioctl; com = SCARG(uap, com); retval[0] = 0; DPRINTF(("oss_sys_ioctl: com=%08lx\n", com)); switch (com) { case OSS_SNDCTL_DSP_RESET: error = ioctlf(fp, AUDIO_FLUSH, (caddr_t)0, p); break; case OSS_SNDCTL_DSP_SYNC: error = ioctlf(fp, AUDIO_DRAIN, (caddr_t)0, p); break; case OSS_SNDCTL_DSP_POST: break; case OSS_SNDCTL_DSP_SPEED: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; tmpinfo.play.sample_rate = tmpinfo.record.sample_rate = idat; error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_SPEED %d = %d\n", idat, error)); /* FALLTHRU */ case OSS_SOUND_PCM_READ_RATE: tmperr = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); if (error >= 0) error = tmperr; idat = tmpinfo.play.sample_rate; tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_STEREO: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; tmpinfo.play.channels = tmpinfo.record.channels = idat ? 2 : 1; error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); tmperr = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); if (error >= 0) error = tmperr; idat = tmpinfo.play.channels - 1; tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_GETBLKSIZE: error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); setblocksize(fp, &tmpinfo, p); idat = tmpinfo.blocksize; tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_SETFMT: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; 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: error = EINVAL; break; } if (error) break; else error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); /* FALLTHRU */ case OSS_SOUND_PCM_READ_BITS: tmperr = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); if (error >= 0) error = tmperr; 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; default: idat = OSS_AFMT_MU_LAW; /* XXX default encoding */ break; } tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_CHANNELS: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; tmpinfo.play.channels = tmpinfo.record.channels = idat; error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); /* FALLTHRU */ case OSS_SOUND_PCM_READ_CHANNELS: tmperr = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); if (error >= 0) error = tmperr; idat = tmpinfo.play.channels; tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SOUND_PCM_WRITE_FILTER: case OSS_SOUND_PCM_READ_FILTER: error = EINVAL; /* XXX unimplemented */ break; case OSS_SNDCTL_DSP_SUBDIVIDE: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; error = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); setblocksize(fp, &tmpinfo, p); if (error) break; if (idat == 0) idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; idat = (tmpinfo.play.buffer_size / idat) & -4; AUDIO_INITINFO(&tmpinfo); tmpinfo.blocksize = idat; error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); if (error) break; idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) break; break; case OSS_SNDCTL_DSP_SETFRAGMENT: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { error = EINVAL; break; } tmpinfo.blocksize = 1 << (idat & 0xffff); tmpinfo.hiwat = (idat >> 16) & 0x7fff; DPRINTF(("oss_audio: SETFRAGMENT blksize=%d, hiwat=%d\n", tmpinfo.blocksize, tmpinfo.hiwat)); if (tmpinfo.hiwat == 0) /* 0 means set to max */ tmpinfo.hiwat = 65536; error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); tmperr = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); if (error >= 0) error = tmperr; u = tmpinfo.blocksize; for(idat = 0; u > 1; idat++, u >>= 1) ; idat |= (tmpinfo.hiwat & 0x7fff) << 16; tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_GETFMTS: for(idat = 0, tmpenc.index = 0; ioctlf(fp, AUDIO_GETENC, (caddr_t)&tmpenc, p) == 0; tmpenc.index++) { switch(tmpenc.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: idat |= OSS_AFMT_S8; break; case AUDIO_ENCODING_SLINEAR_LE: if (tmpenc.precision == 16) idat |= OSS_AFMT_S16_LE; else idat |= OSS_AFMT_S8; break; case AUDIO_ENCODING_SLINEAR_BE: if (tmpenc.precision == 16) idat |= OSS_AFMT_S16_BE; else idat |= OSS_AFMT_S8; break; case AUDIO_ENCODING_ULINEAR: idat |= OSS_AFMT_U8; break; case AUDIO_ENCODING_ULINEAR_LE: if (tmpenc.precision == 16) idat |= OSS_AFMT_U16_LE; else idat |= OSS_AFMT_U8; break; case AUDIO_ENCODING_ULINEAR_BE: if (tmpenc.precision == 16) idat |= OSS_AFMT_U16_BE; else idat |= OSS_AFMT_U8; break; case AUDIO_ENCODING_ADPCM: idat |= OSS_AFMT_IMA_ADPCM; break; default: break; } } DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETFMTS = %x\n", idat)); error = copyout(&idat, SCARG(uap, data), sizeof idat); break; case OSS_SNDCTL_DSP_GETOSPACE: error = ioctlf(fp, AUDIO_GETPRINFO, (caddr_t)&tmpab, p); bufinfo.fragsize = tmpab.blksize; bufinfo.fragstotal = tmpab.hiwat; bufinfo.bytes = tmpab.hiwat * tmpab.blksize - tmpab.seek; if (tmpab.blksize != 0) bufinfo.fragments = bufinfo.bytes / tmpab.blksize; else bufinfo.fragments = 0; tmperr = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_GETISPACE: error = ioctlf(fp, AUDIO_GETRRINFO, (caddr_t)&tmpab, p); bufinfo.fragsize = tmpab.blksize; bufinfo.fragstotal = tmpab.hiwat; bufinfo.bytes = tmpab.seek; if (tmpab.blksize != 0) bufinfo.fragments = bufinfo.bytes / tmpab.blksize; else bufinfo.fragments = 0; DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETxSPACE = %d %d %d %d\n", bufinfo.fragsize, bufinfo.fragments, bufinfo.fragstotal, bufinfo.bytes)); tmperr = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_NONBLOCK: idat = 1; error = ioctlf(fp, FIONBIO, (caddr_t)&idat, p); break; case OSS_SNDCTL_DSP_GETCAPS: error = ioctlf(fp, AUDIO_GETPROPS, (caddr_t)&idata, p); idat = OSS_DSP_CAP_TRIGGER; if (idata & AUDIO_PROP_FULLDUPLEX) idat |= OSS_DSP_CAP_DUPLEX; if (idata & AUDIO_PROP_MMAP) idat |= OSS_DSP_CAP_MMAP; DPRINTF(("oss_sys_ioctl: SNDCTL_DSP_GETCAPS = %x\n", idat)); tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_SETTRIGGER: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) break; AUDIO_INITINFO(&tmpinfo); if (idat & OSS_PCM_ENABLE_OUTPUT) tmpinfo.play.pause = 0; if (idat & OSS_PCM_ENABLE_INPUT) tmpinfo.record.pause = 0; error = ioctlf(fp, AUDIO_SETINFO, (caddr_t)&tmpinfo, p); tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; /* FALLTHRU */ case OSS_SNDCTL_DSP_GETTRIGGER: tmperr = ioctlf(fp, AUDIO_GETINFO, (caddr_t)&tmpinfo, p); if (error >= 0) error = tmperr; idat = (tmpinfo.play.pause ? 0 : OSS_PCM_ENABLE_OUTPUT) | (tmpinfo.record.pause ? 0 : OSS_PCM_ENABLE_INPUT); tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_GETIPTR: error = ioctlf(fp, AUDIO_GETIOFFS, (caddr_t)&tmpoffs, p); cntinfo.bytes = tmpoffs.samples; cntinfo.blocks = tmpoffs.deltablks; cntinfo.ptr = tmpoffs.offset; tmperr = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_GETOPTR: error = ioctlf(fp, AUDIO_GETOOFFS, (caddr_t)&tmpoffs, p); cntinfo.bytes = tmpoffs.samples; cntinfo.blocks = tmpoffs.deltablks; cntinfo.ptr = tmpoffs.offset; tmperr = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_SETDUPLEX: idat = 1; error = ioctlf(fp, AUDIO_SETFD, (caddr_t)&idat, p); break; case OSS_SNDCTL_DSP_GETODELAY: error = ioctlf(fp, AUDIO_WSEEK, (caddr_t)&ldat, p); idat = (int)ldat; tmperr = copyout(&idat, SCARG(uap, data), sizeof idat); if (error >= 0) error = tmperr; break; case OSS_SNDCTL_DSP_MAPINBUF: case OSS_SNDCTL_DSP_MAPOUTBUF: case OSS_SNDCTL_DSP_SETSYNCRO: case OSS_SNDCTL_DSP_PROFILE: error = EINVAL; /* XXX unimplemented */ break; default: error = EINVAL; break; } FRELE(fp, p); return (error); } /* If the NetBSD mixer device should have more than 32 devices * some will not be available to Linux */ #define NETBSD_MAXDEVS 64 struct audiodevinfo { int done; dev_t dev; 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 const struct oss_devs { const char *name; int code; } 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 }, { 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 } }; register const struct oss_devs *dp; int (*ioctlf)(struct file *, u_long, caddr_t, struct proc *) = fp->f_ops->fo_ioctl; struct vnode *vp; struct vattr va; static struct audiodevinfo devcache = { 0 }; register 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; 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) { for(k = 0; !(mask & 1); mask >>= 1, k++) ; di->recmask |= 1 << di->rdevmap[k]; } } } break; } } return di; } int oss_ioctl_mixer(p, uap, retval) struct proc *p; 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)(struct file *, u_long, caddr_t, struct proc *); fdp = p->p_fd; if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL) return (EBADF); FREF(fp); if ((fp->f_flag & (FREAD | FWRITE)) == 0) { error = EBADF; goto out; } com = SCARG(uap, com); retval[0] = 0; di = getdevinfo(fp, p); if (di == 0) { error = EINVAL; goto out; } ioctlf = fp->f_ops->fo_ioctl; switch (com) { 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, (caddr_t)&mc, p); if (error) goto out; 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) goto out; idat = 0; for(mask = mc.un.mask, k = 0; mask; mask >>= 1, k++) 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: 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 = 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 |= 1 << di->devmap[i]; } } } error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 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<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<devmap[n], l, r, idat)); error = ioctlf(fp, AUDIO_MIXER_WRITE, (caddr_t)&mc, p); 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 { #ifdef AUDIO_DEBUG printf("oss_audio: unknown mixer ioctl %04lx\n", com); #endif error = EINVAL; goto out; } } error = copyout(&idat, SCARG(uap, data), sizeof idat); out: FRELE(fp, p); return (error); } /* XXX hook for sequencer emulation */ int oss_ioctl_sequencer(p, uap, retval) struct proc *p; 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; #if 0 u_long com; int idat; int error; #endif fdp = p->p_fd; if ((fp = fd_getfile(fdp, 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; } /* * Check that the blocksize is a power of 2 as OSS wants. * If not, set it to be. */ static void setblocksize(fp, info, p) struct file *fp; struct audio_info *info; struct proc *p; { struct audio_info set; int s; if (info->blocksize & (info->blocksize-1)) { for(s = 32; s < info->blocksize; s <<= 1) ; AUDIO_INITINFO(&set); set.blocksize = s; fp->f_ops->fo_ioctl(fp, AUDIO_SETINFO, (caddr_t)&set, p); fp->f_ops->fo_ioctl(fp, AUDIO_GETINFO, (caddr_t)info, p); } }