/* $NetBSD: ossaudio.c,v 1.74.4.6 2023/06/21 21:24:37 martin Exp $ */ /*- * Copyright (c) 1997, 2008 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 __KERNEL_RCSID(0, "$NetBSD: ossaudio.c,v 1.74.4.6 2023/06/21 21:24:37 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include MODULE(MODULE_CLASS_EXEC, compat_ossaudio, NULL); #ifdef AUDIO_DEBUG #define DPRINTF(x) if (ossdebug) printf x int ossdebug = 0; #else #define DPRINTF(x) #endif #define TO_OSSVOL(x) (((x) * 100 + 127) / 255) #define FROM_OSSVOL(x) ((((x) > 100 ? 100 : (x)) * 255 + 50) / 100) #define GETPRINFO(info, name) \ (((info)->mode == AUMODE_RECORD) \ ? (info)->record.name : (info)->play.name) static struct audiodevinfo *getdevinfo(file_t *); static int opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq); static int enum_to_ord(struct audiodevinfo *di, int enm); static int enum_to_mask(struct audiodevinfo *di, int enm); static void setchannels(file_t *, int, int); static void setblocksize(file_t *, struct audio_info *); #ifdef AUDIO_DEBUG static const char * compat_ossaudio_getcmd(u_long cmd) { static char buf[64]; switch (cmd) { #define _DO(_a) \ case _a: \ return # _a; _DO(OSS_SNDCTL_DSP_RESET) _DO(OSS_SNDCTL_DSP_SYNC) _DO(OSS_SNDCTL_DSP_SPEED) _DO(OSS_SOUND_PCM_READ_RATE) _DO(OSS_SNDCTL_DSP_STEREO) _DO(OSS_SNDCTL_DSP_GETBLKSIZE) _DO(OSS_SNDCTL_DSP_SETFMT) _DO(OSS_SOUND_PCM_READ_BITS) _DO(OSS_SNDCTL_DSP_CHANNELS) _DO(OSS_SOUND_PCM_READ_CHANNELS) _DO(OSS_SOUND_PCM_WRITE_FILTER) _DO(OSS_SOUND_PCM_READ_FILTER) _DO(OSS_SNDCTL_DSP_POST) _DO(OSS_SNDCTL_DSP_SUBDIVIDE) _DO(OSS_SNDCTL_DSP_SETFRAGMENT) _DO(OSS_SNDCTL_DSP_GETFMTS) _DO(OSS_SNDCTL_DSP_GETOSPACE) _DO(OSS_SNDCTL_DSP_GETISPACE) _DO(OSS_SNDCTL_DSP_NONBLOCK) _DO(OSS_SNDCTL_DSP_GETCAPS) _DO(OSS_SNDCTL_DSP_GETTRIGGER) _DO(OSS_SNDCTL_DSP_SETTRIGGER) _DO(OSS_SNDCTL_DSP_GETIPTR) _DO(OSS_SNDCTL_DSP_GETOPTR) _DO(OSS_SNDCTL_DSP_MAPINBUF) _DO(OSS_SNDCTL_DSP_MAPOUTBUF) _DO(OSS_SNDCTL_DSP_SETSYNCRO) _DO(OSS_SNDCTL_DSP_SETDUPLEX) _DO(OSS_SNDCTL_DSP_GETODELAY) _DO(OSS_SNDCTL_DSP_PROFILE) _DO(OSS_SOUND_MIXER_INFO) _DO(OSS_SOUND_OLD_MIXER_INFO) _DO(OSS_GET_VERSION) _DO(OSS_SEQ_RESET) _DO(OSS_SEQ_SYNC) _DO(OSS_SYNTH_INFO) _DO(OSS_SEQ_CTRLRATE) _DO(OSS_SEQ_GETOUTCOUNT) _DO(OSS_SEQ_GETINCOUNT) _DO(OSS_SEQ_PERCMODE) _DO(OSS_SEQ_TESTMIDI) _DO(OSS_SEQ_RESETSAMPLES) _DO(OSS_SEQ_NRSYNTHS) _DO(OSS_SEQ_NRMIDIS) #ifdef notyet _DO(OSS_MIDI_INFO) #endif _DO(OSS_SEQ_THRESHOLD) _DO(OSS_MEMAVL) _DO(OSS_FM_4OP_ENABLE) _DO(OSS_SEQ_PANIC) _DO(OSS_SEQ_OUTOFBAND) _DO(OSS_SEQ_GETTIME) _DO(OSS_ID) _DO(OSS_CONTROL) _DO(OSS_REMOVESAMPLE) _DO(OSS_TMR_TIMEBASE) _DO(OSS_TMR_START) _DO(OSS_TMR_STOP) _DO(OSS_TMR_CONTINUE) _DO(OSS_TMR_TEMPO) _DO(OSS_TMR_SOURCE) _DO(OSS_TMR_METRONOME) _DO(OSS_TMR_SELECT) #undef _DO default: (void)snprintf(buf, sizeof(buf), "*0x%lx*", cmd); return buf; } } #endif static int compat_ossaudio_modcmd(modcmd_t cmd, void *arg) { switch (cmd) { case MODULE_CMD_INIT: case MODULE_CMD_FINI: return 0; default: return ENOTTY; } } int oss_ioctl_audio(struct lwp *l, 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 audio_info tmpinfo, hwfmt; struct audio_offset tmpoffs; struct oss_audio_buf_info bufinfo; struct oss_count_info cntinfo; struct audio_encoding tmpenc; u_int u; u_int encoding; u_int precision; int idat, idata; int error = 0; 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(("%s: com=%s\n", __func__, compat_ossaudio_getcmd(com))); retval[0] = 0; ioctlf = fp->f_ops->fo_ioctl; switch (com) { case OSS_SNDCTL_DSP_RESET: error = ioctlf(fp, AUDIO_FLUSH, NULL); if (error) { DPRINTF(("%s: AUDIO_FLUSH %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_SYNC: error = ioctlf(fp, AUDIO_DRAIN, NULL); if (error) { DPRINTF(("%s: AUDIO_DRAIN %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_POST: /* This call is merely advisory, and may be a nop. */ break; case OSS_SNDCTL_DSP_SPEED: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SPEED %d\n", __func__, error)); goto out; } tmpinfo.play.sample_rate = tmpinfo.record.sample_rate = idat; DPRINTF(("%s: SNDCTL_DSP_SPEED > %d\n", __func__, idat)); /* * The default NetBSD behavior if an unsupported sample rate * is set is to return an error code and keep the rate at the * default of 8000 Hz. * * However, the OSS expectation is a sample rate supported by * the hardware is returned if the exact rate could not be set. * * So, if the chosen sample rate is invalid, set and return * the current hardware rate. */ if (ioctlf(fp, AUDIO_SETINFO, &tmpinfo) != 0) { error = ioctlf(fp, AUDIO_GETFORMAT, &hwfmt); if (error) { DPRINTF(("%s: AUDIO_GETFORMAT %d\n", __func__, error)); goto out; } error = ioctlf(fp, AUDIO_GETINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETINFO %d\n", __func__, error)); goto out; } tmpinfo.play.sample_rate = tmpinfo.record.sample_rate = (tmpinfo.mode == AUMODE_RECORD) ? hwfmt.record.sample_rate : hwfmt.play.sample_rate; error = ioctlf(fp, AUDIO_SETINFO, &tmpinfo); if (error) { DPRINTF(("%s: SNDCTL_DSP_SPEED %d = %d\n", __func__, idat, error)); goto out; } } /* FALLTHROUGH */ case OSS_SOUND_PCM_READ_RATE: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } idat = GETPRINFO(&tmpinfo, sample_rate); DPRINTF(("%s: SNDCTL_PCM_READ_RATE < %d\n", __func__, idat)); error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SOUND_PCM_READ_RATE %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_STEREO: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_STEREO %d\n", __func__, error)); goto out; } tmpinfo.play.channels = tmpinfo.record.channels = idat ? 2 : 1; error = ioctlf(fp, AUDIO_SETINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_SETINFO %d\n", __func__, error)); goto out; } error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } idat = GETPRINFO(&tmpinfo, channels) - 1; error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_STEREO %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_GETBLKSIZE: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } setblocksize(fp, &tmpinfo); idat = tmpinfo.blocksize; DPRINTF(("%s: SNDCTL_DSP_GETBLKSIZE < %d\n", __func__, idat)); error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETBLKSIZE %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_SETFMT: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SETFMT %d\n", __func__, error)); goto out; } 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; case OSS_AFMT_AC3: tmpinfo.play.precision = tmpinfo.record.precision = 16; tmpinfo.play.encoding = tmpinfo.record.encoding = AUDIO_ENCODING_AC3; break; default: /* * OSSv4 specifies that if an invalid format is chosen * by an application then a sensible format supported * by the hardware is returned. * * In this case, we pick S16LE since it's reasonably * assumed to be supported by applications. */ tmpinfo.play.precision = tmpinfo.record.precision = 16; tmpinfo.play.encoding = tmpinfo.record.encoding = AUDIO_ENCODING_SLINEAR_LE; break; } DPRINTF(("%s: SNDCTL_DSP_SETFMT > 0x%x\n", __func__, idat)); error = ioctlf(fp, AUDIO_SETINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_SETINFO %d\n", __func__, error)); goto out; } /* FALLTHROUGH */ case OSS_SOUND_PCM_READ_BITS: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } encoding = GETPRINFO(&tmpinfo, encoding); precision = GETPRINFO(&tmpinfo, precision); switch (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 (precision == 16) idat = OSS_AFMT_S16_LE; else idat = OSS_AFMT_S8; break; case AUDIO_ENCODING_SLINEAR_BE: if (precision == 16) idat = OSS_AFMT_S16_BE; else idat = OSS_AFMT_S8; break; case AUDIO_ENCODING_ULINEAR_LE: if (precision == 16) idat = OSS_AFMT_U16_LE; else idat = OSS_AFMT_U8; break; case AUDIO_ENCODING_ULINEAR_BE: if (precision == 16) idat = OSS_AFMT_U16_BE; else idat = OSS_AFMT_U8; break; case AUDIO_ENCODING_ADPCM: idat = OSS_AFMT_IMA_ADPCM; break; case AUDIO_ENCODING_AC3: idat = OSS_AFMT_AC3; break; default: DPRINTF(("%s: SOUND_PCM_READ_BITS bad encoding %d\n", __func__, tmpinfo.play.encoding)); error = EINVAL; goto out; } DPRINTF(("%s: SOUND_PCM_READ_BITS < 0x%x\n", __func__, idat)); error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SOUND_PCM_READ_BITS %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_CHANNELS: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_CHANNELS %d\n", __func__, error)); goto out; } error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } setchannels(fp, tmpinfo.mode, idat); /* FALLTHROUGH */ case OSS_SOUND_PCM_READ_CHANNELS: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } idat = GETPRINFO(&tmpinfo, channels); DPRINTF(("%s: SOUND_PCM_READ_CHANNELS < %d\n", __func__, idat)); error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SOUND_PCM_READ_CHANNELS %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SOUND_PCM_WRITE_FILTER: case OSS_SOUND_PCM_READ_FILTER: error = EINVAL; /* XXX unimplemented */ DPRINTF(("%s: SOUND_PCM_{READ,WRITE}_FILTER filter\n", __func__)); goto out; case OSS_SNDCTL_DSP_SUBDIVIDE: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SUBDIVIDE %d\n", __func__, error)); goto out; } error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } setblocksize(fp, &tmpinfo); 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, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_SETINFO %d\n", __func__, error)); goto out; } idat = tmpinfo.play.buffer_size / tmpinfo.blocksize; error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SUBDIVIDE %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_SETFRAGMENT: AUDIO_INITINFO(&tmpinfo); error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SETFRAGMENT %d\n", __func__, error)); goto out; } if ((idat & 0xffff) < 4 || (idat & 0xffff) > 17) { DPRINTF(("%s: SNDCTL_DSP_SETFRAGMENT bad ival%d\n", __func__, idat)); error = EINVAL; goto out; } tmpinfo.blocksize = 1 << (idat & 0xffff); tmpinfo.hiwat = (idat >> 16) & 0x7fff; DPRINTF(("%s: SNDCTL_DSP_SETFRAGMENT blksize=%d, " "hiwat=%d\n", __func__, tmpinfo.blocksize, tmpinfo.hiwat)); if (tmpinfo.hiwat == 0) /* 0 means set to max */ tmpinfo.hiwat = 65536; error = ioctlf(fp, AUDIO_SETINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_SETINFO %d\n", __func__, error)); goto out; } error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } u = tmpinfo.blocksize; for(idat = 0; u > 1; idat++, u >>= 1) ; idat |= (tmpinfo.hiwat & 0x7fff) << 16; error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SETFRAGMENT %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_GETFMTS: for (idat = 0, tmpenc.index = 0; ioctlf(fp, AUDIO_GETENC, &tmpenc) == 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; case AUDIO_ENCODING_AC3: idat |= OSS_AFMT_AC3; break; default: DPRINTF(("%s: SNDCTL_DSP_GETFMTS unknown %d\n", __func__, tmpenc.encoding)); break; } } DPRINTF(("%s: SNDCTL_DSP_GETFMTS < 0x%x\n", __func__, idat)); error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETFMTS = %x = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_GETOSPACE: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } setblocksize(fp, &tmpinfo); memset(&bufinfo, 0, sizeof(bufinfo)); bufinfo.fragsize = tmpinfo.blocksize; bufinfo.fragments = tmpinfo.hiwat - (tmpinfo.play.seek + tmpinfo.blocksize - 1) / tmpinfo.blocksize; bufinfo.fragstotal = tmpinfo.hiwat; bufinfo.bytes = tmpinfo.hiwat * tmpinfo.blocksize - tmpinfo.play.seek; error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETOSPACE = %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_GETISPACE: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } setblocksize(fp, &tmpinfo); memset(&bufinfo, 0, sizeof(bufinfo)); bufinfo.fragsize = tmpinfo.blocksize; bufinfo.fragments = tmpinfo.record.seek / tmpinfo.blocksize; bufinfo.fragstotal = tmpinfo.record.buffer_size / tmpinfo.blocksize; bufinfo.bytes = tmpinfo.record.seek; error = copyout(&bufinfo, SCARG(uap, data), sizeof bufinfo); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETISPACE %d %d %d %d = %d\n", __func__, bufinfo.fragsize, bufinfo.fragments, bufinfo.fragstotal, bufinfo.bytes, error)); goto out; } break; case OSS_SNDCTL_DSP_NONBLOCK: idat = 1; error = ioctlf(fp, FIONBIO, &idat); if (error) { DPRINTF(("%s: FIONBIO %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_GETCAPS: error = ioctlf(fp, AUDIO_GETPROPS, &idata); if (error) { DPRINTF(("%s: AUDIO_GETPROPS %d\n", __func__, error)); goto out; } 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(("%s: SNDCL_DSP_GETCAPS %s duplex, %smmap\n", __func__, (idat & OSS_DSP_CAP_DUPLEX) ? "full" : "half", (idat & OSS_DSP_CAP_MMAP) ? "" : "no ")); error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETCAPS %x = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_SETTRIGGER: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_SETTRIGGER: %d\n", __func__, error)); goto out; } error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } AUDIO_INITINFO(&tmpinfo); if (tmpinfo.mode & AUMODE_PLAY) tmpinfo.play.pause = (idat & OSS_PCM_ENABLE_OUTPUT) == 0; if (tmpinfo.mode & AUMODE_RECORD) tmpinfo.record.pause = (idat & OSS_PCM_ENABLE_INPUT) == 0; (void)ioctlf(fp, AUDIO_SETINFO, &tmpinfo); /* FALLTHRU */ case OSS_SNDCTL_DSP_GETTRIGGER: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } idat = 0; if ((tmpinfo.mode & AUMODE_PLAY) && !tmpinfo.play.pause) idat |= OSS_PCM_ENABLE_OUTPUT; if ((tmpinfo.mode & AUMODE_RECORD) && !tmpinfo.record.pause) idat |= OSS_PCM_ENABLE_INPUT; error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETTRIGGER = %x = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_GETIPTR: error = ioctlf(fp, AUDIO_GETIOFFS, &tmpoffs); if (error) { DPRINTF(("%s: AUDIO_GETIOFFS %d\n", __func__, error)); goto out; } memset(&cntinfo, 0, sizeof(cntinfo)); cntinfo.bytes = tmpoffs.samples; cntinfo.blocks = tmpoffs.deltablks; cntinfo.ptr = tmpoffs.offset; error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETIPTR %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_GETOPTR: error = ioctlf(fp, AUDIO_GETOOFFS, &tmpoffs); if (error) { DPRINTF(("%s: AUDIO_GETOOFFS %d\n", __func__, error)); goto out; } memset(&cntinfo, 0, sizeof(cntinfo)); cntinfo.bytes = tmpoffs.samples; cntinfo.blocks = tmpoffs.deltablks; cntinfo.ptr = tmpoffs.offset; error = copyout(&cntinfo, SCARG(uap, data), sizeof cntinfo); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETOPTR %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_SETDUPLEX: idat = 1; error = ioctlf(fp, AUDIO_SETFD, &idat); if (error) { DPRINTF(("%s: AUDIO_SETFD %d = %d\n", __func__, idat, error)); goto out; } break; case OSS_SNDCTL_DSP_MAPINBUF: DPRINTF(("%s: Unimplemented SNDCTL_DSP_MAPINBUF\n", __func__)); error = EINVAL; goto out; case OSS_SNDCTL_DSP_MAPOUTBUF: DPRINTF(("%s: Unimplemented SNDCTL_DSP_MAPOUTBUF\n", __func__)); error = EINVAL; goto out; case OSS_SNDCTL_DSP_SETSYNCRO: DPRINTF(("%s: Unimplemented SNDCTL_DSP_GETSYNCHRO\n", __func__)); error = EINVAL; goto out; case OSS_SNDCTL_DSP_GETODELAY: error = ioctlf(fp, AUDIO_GETBUFINFO, &tmpinfo); if (error) { DPRINTF(("%s: AUDIO_GETBUFINFO %d\n", __func__, error)); goto out; } idat = tmpinfo.play.seek + tmpinfo.blocksize / 2; error = copyout(&idat, SCARG(uap, data), sizeof idat); if (error) { DPRINTF(("%s: SNDCTL_DSP_GETODELAY %d\n", __func__, error)); goto out; } break; case OSS_SNDCTL_DSP_PROFILE: /* This gives just a hint to the driver, * implementing it as a NOP is ok */ DPRINTF(("%s: SNDCTL_DSP_PROFILE\n", __func__)); break; default: DPRINTF(("%s: Unimplemented 0x%lx\n", __func__, com)); error = EINVAL; goto out; } out: fd_putfile(SCARG(uap, fd)); 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]; char names[NETBSD_MAXDEVS][MAX_AUDIO_DEV_LEN]; int enum2opaque[NETBSD_MAXDEVS]; u_long devmask, recmask, stereomask; u_long caps, source; }; static int opaque_to_enum(struct audiodevinfo *di, audio_mixer_name_t *label, int opq) { int i, o; for (i = 0; i < NETBSD_MAXDEVS; i++) { o = di->enum2opaque[i]; if (o == opq) break; if (o == -1 && label != NULL && !strncmp(di->names[i], label->name, sizeof di->names[i])) { di->enum2opaque[i] = opq; break; } } if (i >= NETBSD_MAXDEVS) i = -1; /*printf("opq_to_enum %s %d -> %d\n", label->name, opq, i);*/ return (i); } static int enum_to_ord(struct audiodevinfo *di, int enm) { if (enm >= NETBSD_MAXDEVS) return (-1); /*printf("enum_to_ord %d -> %d\n", enm, di->enum2opaque[enm]);*/ return (di->enum2opaque[enm]); } static int enum_to_mask(struct audiodevinfo *di, int enm) { int m; if (enm >= NETBSD_MAXDEVS) return (0); m = di->enum2opaque[enm]; if (m == -1) m = 0; /*printf("enum_to_mask %d -> %d\n", enm, di->enum2opaque[enm]);*/ return (m); } /* * 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 error, mlen, dlen; /* * Figure out what device it is so we can check if the * cached data is valid. */ vp = fp->f_vnode; if (vp->v_type != VCHR) return 0; vn_lock(vp, LK_SHARED | LK_RETRY); error = VOP_GETATTR(vp, &va, kauth_cred_get()); VOP_UNLOCK(vp); if (error) 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; } 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 = 0; int i; int error; int l, r, n, e; int (*ioctlf)(file_t *, u_long, void *); if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) return error; if ((fp->f_flag & (FREAD | FWRITE)) == 0) { error = EBADF; goto out; } com = SCARG(uap, com); DPRINTF(("%s: com=%s\n", __func__, compat_ossaudio_getcmd(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) { DPRINTF(("%s: AUDIO_GETDEV %d\n", __func__, error)); goto out; } memset(&omi, 0, sizeof omi); 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)); if (error) { DPRINTF(("%s: OSS_SOUND_MIXER_INFO %d\n", __func__, error)); goto out; } break; case OSS_SOUND_MIXER_READ_RECSRC: if (di->source == -1) { DPRINTF(("%s: OSS_SOUND_MIXER_READ_RECSRC bad source\n", __func__)); 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) { DPRINTF(("%s: AUDIO_MIXER_READ %d\n", __func__, 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) { DPRINTF(("%s: AUDIO_MIXER_READ %d\n", __func__, 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) { DPRINTF(("%s: OSS_SOUND_MIXER_WRITE_RECSRC bad " "source\n", __func__)); error = EINVAL; goto out; } mc.dev = di->source; error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: OSS_SOUND_MIXER_WRITE_RECSRC %d\n", __func__, 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; DPRINTF(("%s: OSS_SOUND_MIXER_WRITE_RECSRC " "bad index %d\n", __func__, i)); 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) { DPRINTF(("%s: OSS_SOUND_MIXER_" "WRITE_RECSRC bad devmap " "%d\n", __func__, i)); error = EINVAL; goto out; } mc.un.mask |= enum_to_mask(di, di->devmap[i]); } } } error = ioctlf(fp, AUDIO_MIXER_WRITE, &mc); if (error) { DPRINTF(("%s: AUDIO_MIXER_WRITE %d\n", __func__, error)); goto out; } 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) { DPRINTF(("%s: 0x%lx bad devmap %d\n", __func__, com, n)); 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) { DPRINTF(("%s: AUDIO_MIXER_READ %d\n", __func__, 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(("%s: n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", __func__, 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) { DPRINTF(("%s: 0x%lx bad devmap %d\n", __func__, com, n)); error = EINVAL; goto out; } error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) { DPRINTF(("%s: 0x%lx error %d\n", __func__, com, 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(("%s: n=%d (dev=%d) l=%d, r=%d, idat=%04x\n", __func__, n, di->devmap[n], l, r, idat)); error = ioctlf(fp, AUDIO_MIXER_WRITE, &mc); if (error) { DPRINTF(("%s: AUDIO_MIXER_WRITE %d\n", __func__, 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 { DPRINTF(("%s: Unknown mixer ioctl 0x%lx\n", __func__, com)); error = EINVAL; goto out; } } error = copyout(&idat, SCARG(uap, data), sizeof idat); out: fd_putfile(SCARG(uap, fd)); return error; } /* Sequencer emulation */ int oss_ioctl_sequencer(struct lwp *l, 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; int idat, idat1; struct synth_info si; struct oss_synth_info osi; struct oss_seq_event_rec oser; int error; 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(("%s: com=%s\n", __func__, compat_ossaudio_getcmd(com))); retval[0] = 0; ioctlf = fp->f_ops->fo_ioctl; switch (com) { case OSS_SEQ_RESET: error = ioctlf(fp, SEQUENCER_RESET, &idat); goto out; case OSS_SEQ_SYNC: error = ioctlf(fp, SEQUENCER_SYNC, &idat); goto out; case OSS_SYNTH_INFO: error = copyin(SCARG(uap, data), &osi, sizeof osi); if (error) goto out; si.device = osi.device; error = ioctlf(fp, SEQUENCER_INFO, &si); if (error) goto out; strncpy(osi.name, si.name, sizeof osi.name); osi.device = si.device; switch(si.synth_type) { case SYNTH_TYPE_FM: osi.synth_type = OSS_SYNTH_TYPE_FM; break; case SYNTH_TYPE_SAMPLE: osi.synth_type = OSS_SYNTH_TYPE_SAMPLE; break; case SYNTH_TYPE_MIDI: osi.synth_type = OSS_SYNTH_TYPE_MIDI; break; default: osi.synth_type = 0; break; } switch(si.synth_subtype) { case SYNTH_SUB_FM_TYPE_ADLIB: osi.synth_subtype = OSS_FM_TYPE_ADLIB; break; case SYNTH_SUB_FM_TYPE_OPL3: osi.synth_subtype = OSS_FM_TYPE_OPL3; break; case SYNTH_SUB_MIDI_TYPE_MPU401: osi.synth_subtype = OSS_MIDI_TYPE_MPU401; break; case SYNTH_SUB_SAMPLE_TYPE_BASIC: osi.synth_subtype = OSS_SAMPLE_TYPE_BASIC; break; default: osi.synth_subtype = 0; break; } osi.perc_mode = 0; osi.nr_voices = si.nr_voices; osi.nr_drums = 0; osi.instr_bank_size = si.instr_bank_size; osi.capabilities = 0; if (si.capabilities & SYNTH_CAP_OPL3) osi.capabilities |= OSS_SYNTH_CAP_OPL3; if (si.capabilities & SYNTH_CAP_INPUT) osi.capabilities |= OSS_SYNTH_CAP_INPUT; error = copyout(&osi, SCARG(uap, data), sizeof osi); goto out; case OSS_SEQ_CTRLRATE: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; error = ioctlf(fp, SEQUENCER_CTRLRATE, &idat); if (error) goto out; retval[0] = idat; break; case OSS_SEQ_GETOUTCOUNT: error = ioctlf(fp, SEQUENCER_GETOUTCOUNT, &idat); if (error) goto out; retval[0] = idat; break; case OSS_SEQ_GETINCOUNT: error = ioctlf(fp, SEQUENCER_GETINCOUNT, &idat); if (error) goto out; retval[0] = idat; break; case OSS_SEQ_NRSYNTHS: error = ioctlf(fp, SEQUENCER_NRSYNTHS, &idat); if (error) goto out; retval[0] = idat; break; case OSS_SEQ_NRMIDIS: error = ioctlf(fp, SEQUENCER_NRMIDIS, &idat); if (error) goto out; retval[0] = idat; break; case OSS_SEQ_THRESHOLD: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; error = ioctlf(fp, SEQUENCER_THRESHOLD, &idat); goto out; case OSS_MEMAVL: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; error = ioctlf(fp, SEQUENCER_MEMAVL, &idat); if (error) goto out; retval[0] = idat; break; case OSS_SEQ_PANIC: error = ioctlf(fp, SEQUENCER_PANIC, &idat); goto out; case OSS_SEQ_OUTOFBAND: error = copyin(SCARG(uap, data), &oser, sizeof oser); if (error) goto out; error = ioctlf(fp, SEQUENCER_OUTOFBAND, &oser); if (error) goto out; break; case OSS_SEQ_GETTIME: error = ioctlf(fp, SEQUENCER_GETTIME, &idat); if (error) goto out; retval[0] = idat; break; case OSS_TMR_TIMEBASE: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; error = ioctlf(fp, SEQUENCER_TMR_TIMEBASE, &idat); if (error) goto out; retval[0] = idat; break; case OSS_TMR_START: error = ioctlf(fp, SEQUENCER_TMR_START, &idat); goto out; case OSS_TMR_STOP: error = ioctlf(fp, SEQUENCER_TMR_STOP, &idat); goto out; case OSS_TMR_CONTINUE: error = ioctlf(fp, SEQUENCER_TMR_CONTINUE, &idat); goto out; case OSS_TMR_TEMPO: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; error = ioctlf(fp, SEQUENCER_TMR_TEMPO, &idat); if (error) goto out; retval[0] = idat; break; case OSS_TMR_SOURCE: error = copyin(SCARG(uap, data), &idat1, sizeof idat); if (error) goto out; idat = 0; if (idat1 & OSS_TMR_INTERNAL) idat |= SEQUENCER_TMR_INTERNAL; error = ioctlf(fp, SEQUENCER_TMR_SOURCE, &idat); if (error) goto out; idat1 = idat; if (idat1 & SEQUENCER_TMR_INTERNAL) idat |= OSS_TMR_INTERNAL; retval[0] = idat; break; case OSS_TMR_METRONOME: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; error = ioctlf(fp, SEQUENCER_TMR_METRONOME, &idat); goto out; case OSS_TMR_SELECT: error = copyin(SCARG(uap, data), &idat, sizeof idat); if (error) goto out; retval[0] = idat; error = ioctlf(fp, SEQUENCER_TMR_SELECT, &idat); goto out; default: DPRINTF(("%s: Unknown sequencer command 0x%lx\n", __func__, com)); error = EINVAL; goto out; } error = copyout(&idat, SCARG(uap, data), sizeof idat); out: fd_putfile(SCARG(uap, fd)); return error; } /* * When AUDIO_SETINFO fails to set a channel count, the application's chosen * number is out of range of what the kernel allows. * * When this happens, we use the current hardware settings. This is just in * case an application is abusing SNDCTL_DSP_CHANNELS - OSSv4 always sets and * returns a reasonable value, even if it wasn't what the user requested. * * XXX: If a device is opened for both playback and recording, and supports * fewer channels for recording than playback, applications that do both will * behave very strangely. OSS doesn't allow for reporting separate channel * counts for recording and playback. This could be worked around by always * mixing recorded data up to the same number of channels as is being used * for playback. */ static void setchannels(file_t *fp, int mode, int nchannels) { struct audio_info tmpinfo, hwfmt; int (*ioctlf)(file_t *, u_long, void *); ioctlf = fp->f_ops->fo_ioctl; if (ioctlf(fp, AUDIO_GETFORMAT, &hwfmt) < 0) { hwfmt.record.channels = hwfmt.play.channels = 2; } if (mode & AUMODE_PLAY) { AUDIO_INITINFO(&tmpinfo); tmpinfo.play.channels = nchannels; if (ioctlf(fp, AUDIO_SETINFO, &tmpinfo) < 0) { AUDIO_INITINFO(&tmpinfo); tmpinfo.play.channels = hwfmt.play.channels; (void)ioctlf(fp, AUDIO_SETINFO, &tmpinfo); } } if (mode & AUMODE_RECORD) { AUDIO_INITINFO(&tmpinfo); tmpinfo.record.channels = nchannels; if (ioctlf(fp, AUDIO_SETINFO, &tmpinfo) < 0) { AUDIO_INITINFO(&tmpinfo); tmpinfo.record.channels = hwfmt.record.channels; (void)ioctlf(fp, AUDIO_SETINFO, &tmpinfo); } } } /* * Check that the blocksize is a power of 2 as OSS wants. * If not, set it to be. */ static void setblocksize(file_t *fp, struct audio_info *info) { 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, &set); fp->f_ops->fo_ioctl(fp, AUDIO_GETBUFINFO, info); } }