Adds ioctls and defines for OSSv4 compatibility.
The ioctl definitions and accompanying structures were taken from FreeBSD's soundcard.h, hopefully providing some binary compatibility. The ioctls are as follows: SNDCTL_SYSINFO: Returns a structure containing details about the audio device. SNDCTL_ENGINEINFO - SNDCTL_AUDIOINFO: Returns a structure with playback/recording characteristics. SNDCTL_DSP_GETPLAYVOL, SNDCTL_DSP_SETPLAYVOL, SNDCTL_DSP_GETRECVOL, SNDCTL_DSP_SETRECVOL: Retrieves/Sets Playback/Recording volume. SNDCTL_DSP_SKIP - SNDCTL_DSP_SILENCE: These ioctls were intended to manipulate the underlying audio buffer skip or insert silence. These return EINVAL. SOUND_VERSION is unchanged, but is definable, It will be changed when the mixer OSSv4 ioctls are written. Addresses PR 46611 This commit was approved by wiz@.
This commit is contained in:
nat
parent
ba94e92b25
commit
a8ba8ad76b
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@ -1,4 +1,4 @@
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/* $NetBSD: ossaudio.c,v 1.28 2012/05/05 15:57:45 christos Exp $ */
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/* $NetBSD: ossaudio.c,v 1.29 2014/05/17 12:38:42 nat Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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@ -27,7 +27,7 @@
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: ossaudio.c,v 1.28 2012/05/05 15:57:45 christos Exp $");
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__RCSID("$NetBSD: ossaudio.c,v 1.29 2014/05/17 12:38:42 nat Exp $");
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/*
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* This is an OSS (Linux) sound API emulator.
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@ -44,6 +44,9 @@ __RCSID("$NetBSD: ossaudio.c,v 1.28 2012/05/05 15:57:45 christos Exp $");
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#include <sys/audioio.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include "soundcard.h"
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@ -93,9 +96,17 @@ audio_ioctl(int fd, unsigned long com, void *argp)
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struct audio_buf_info bufinfo;
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struct count_info cntinfo;
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struct audio_encoding tmpenc;
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struct oss_sysinfo tmpsysinfo;
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struct oss_audioinfo *tmpaudioinfo;
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audio_device_t tmpaudiodev;
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struct stat tmpstat;
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dev_t devno;
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char version[32] = "4.01";
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char license[16] = "NetBSD";
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u_int u;
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int idat, idata;
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int retval;
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int i;
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idat = 0;
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@ -316,13 +327,21 @@ audio_ioctl(int fd, unsigned long com, void *argp)
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idat |= AFMT_S8;
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break;
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case AUDIO_ENCODING_SLINEAR_LE:
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if (tmpenc.precision == 16)
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if (tmpenc.precision == 32)
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idat |= AFMT_S32_LE;
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else if (tmpenc.precision == 24)
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idat |= AFMT_S24_LE;
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else if (tmpenc.precision == 16)
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idat |= AFMT_S16_LE;
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else
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idat |= AFMT_S8;
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break;
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case AUDIO_ENCODING_SLINEAR_BE:
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if (tmpenc.precision == 16)
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if (tmpenc.precision == 32)
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idat |= AFMT_S32_BE;
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else if (tmpenc.precision == 24)
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idat |= AFMT_S24_BE;
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else if (tmpenc.precision == 16)
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idat |= AFMT_S16_BE;
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else
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idat |= AFMT_S8;
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@ -445,6 +464,130 @@ audio_ioctl(int fd, unsigned long com, void *argp)
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cntinfo.ptr = tmpoffs.offset;
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*(struct count_info *)argp = cntinfo;
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break;
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case SNDCTL_SYSINFO:
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strncpy(tmpsysinfo.product, "OSS/NetBSD", 31);
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tmpsysinfo.product[31] = 0;
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strncpy(tmpsysinfo.version, version, 31);
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tmpsysinfo.version[31] = 0;
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strncpy(tmpsysinfo.license, license, 15);
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tmpsysinfo.license[15] = 0;
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tmpsysinfo.versionnum = SOUND_VERSION;
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memset(tmpsysinfo.options, 0, 8);
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tmpsysinfo.numaudios = OSS_MAX_AUDIO_DEVS;
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tmpsysinfo.numaudioengines = 1;
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memset(tmpsysinfo.openedaudio, 0, 8);
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tmpsysinfo.numsynths = 1;
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tmpsysinfo.nummidis = -1;
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tmpsysinfo.numtimers = -1;
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tmpsysinfo.nummixers = 1;
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tmpsysinfo.numcards = 1;
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memset(tmpsysinfo.openedmidi, 0, 8);
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*(struct oss_sysinfo *)argp = tmpsysinfo;
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break;
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case SNDCTL_ENGINEINFO:
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case SNDCTL_AUDIOINFO:
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devno = 0;
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tmpaudioinfo = (struct oss_audioinfo*)argp;
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if (tmpaudioinfo == NULL)
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return EINVAL;
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if (tmpaudioinfo->dev < 0) {
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fstat(fd, &tmpstat);
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if ((tmpstat.st_rdev & 0xff00) == 0x2a00)
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devno = tmpstat.st_rdev & 0xff;
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if (devno >= 0x80)
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tmpaudioinfo->dev = devno & 0x7f;
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}
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if (tmpaudioinfo->dev < 0)
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tmpaudioinfo->dev = 0;
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snprintf(tmpaudioinfo->devnode, OSS_DEVNODE_SIZE,
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"/dev/audio%d", tmpaudioinfo->dev);
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retval = ioctl(fd, AUDIO_GETDEV, &tmpaudiodev);
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if (retval < 0)
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return retval;
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retval = ioctl(fd, AUDIO_GETINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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retval = ioctl(fd, AUDIO_GETPROPS, &idata);
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if (retval < 0)
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return retval;
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idat = DSP_CAP_TRIGGER; /* pretend we have trigger */
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if (idata & AUDIO_PROP_FULLDUPLEX)
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idat |= DSP_CAP_DUPLEX;
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if (idata & AUDIO_PROP_MMAP)
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idat |= DSP_CAP_MMAP;
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idat = PCM_CAP_INPUT | PCM_CAP_OUTPUT;
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strncpy(tmpaudioinfo->name, tmpaudiodev.name, 64);
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tmpaudioinfo->name[63] = 0;
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tmpaudioinfo->busy = tmpinfo.play.open;
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tmpaudioinfo->pid = -1;
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tmpaudioinfo->caps = idat;
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ioctl(fd, SNDCTL_DSP_GETFMTS, &tmpaudioinfo->iformats);
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tmpaudioinfo->oformats = tmpaudioinfo->iformats;
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tmpaudioinfo->magic = -1;
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memset(tmpaudioinfo->cmd, 0, 64);
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tmpaudioinfo->card_number = -1;
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memset(tmpaudioinfo->song_name, 0, 64);
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memset(tmpaudioinfo->label, 0, 16);
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tmpaudioinfo->port_number = tmpinfo.play.port;
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tmpaudioinfo->mixer_dev = tmpaudioinfo->dev;
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tmpaudioinfo->legacy_device = -1;
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tmpaudioinfo->enabled = 1;
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tmpaudioinfo->flags = -1;
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tmpaudioinfo->min_rate = tmpinfo.play.sample_rate;
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tmpaudioinfo->max_rate = tmpinfo.play.sample_rate;
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tmpaudioinfo->nrates = 2;
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for (i = 0; i < tmpaudioinfo->nrates; i++)
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tmpaudioinfo->rates[i] = tmpinfo.play.sample_rate;
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tmpaudioinfo->min_channels = tmpinfo.play.channels;
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tmpaudioinfo->max_channels = tmpinfo.play.channels;
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tmpaudioinfo->binding = -1;
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tmpaudioinfo->rate_source = -1;
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memset(tmpaudioinfo->handle, 0, 16);
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tmpaudioinfo->next_play_engine = 0;
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tmpaudioinfo->next_rec_engine = 0;
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argp = tmpaudioinfo;
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break;
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case SNDCTL_DSP_GETPLAYVOL:
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retval = ioctl(fd, AUDIO_GETBUFINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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*(uint *)argp = tmpinfo.play.gain;
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break;
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case SNDCTL_DSP_SETPLAYVOL:
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retval = ioctl(fd, AUDIO_GETBUFINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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if (*(uint *)argp > 255)
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tmpinfo.play.gain = 255;
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else
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tmpinfo.play.gain = *(uint *)argp;
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retval = ioctl(fd, AUDIO_SETINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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break;
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case SNDCTL_DSP_GETRECVOL:
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retval = ioctl(fd, AUDIO_GETBUFINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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*(uint *)argp = tmpinfo.record.gain;
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break;
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case SNDCTL_DSP_SETRECVOL:
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retval = ioctl(fd, AUDIO_GETBUFINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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if (*(uint *)argp > 255)
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tmpinfo.record.gain = 255;
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else
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tmpinfo.record.gain = *(uint *)argp;
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retval = ioctl(fd, AUDIO_SETINFO, &tmpinfo);
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if (retval < 0)
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return retval;
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break;
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case SNDCTL_DSP_SKIP:
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case SNDCTL_DSP_SILENCE:
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return EINVAL;
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case SNDCTL_DSP_SETDUPLEX:
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idat = 1;
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retval = ioctl(fd, AUDIO_SETFD, &idat);
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@ -1,4 +1,4 @@
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/* $NetBSD: soundcard.h,v 1.22 2012/05/05 15:57:45 christos Exp $ */
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/* $NetBSD: soundcard.h,v 1.23 2014/05/17 12:38:42 nat Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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@ -39,7 +39,9 @@
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#ifndef _SOUNDCARD_H_
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#define _SOUNDCARD_H_
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#define SOUND_VERSION 0x030001
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#ifndef SOUND_VERSION
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#define SOUND_VERSION 0x030001
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#endif
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#define SNDCTL_DSP_RESET _IO ('P', 0)
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#define SNDCTL_DSP_SYNC _IO ('P', 1)
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@ -60,6 +62,11 @@
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#define AFMT_U16_BE 0x00000100
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#define AFMT_MPEG 0x00000200
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#define AFMT_AC3 0x00000400
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#define AFMT_S24_LE 0x00000800
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#define AFMT_S24_BE 0x00001000
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#define AFMT_S32_LE 0x00002000
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#define AFMT_S32_BE 0x00004000
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#define AFMT_S32_NE 0x00008000
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#define SNDCTL_DSP_SAMPLESIZE SNDCTL_DSP_SETFMT
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#define SOUND_PCM_READ_BITS _IOR ('P', 5, int)
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#define SNDCTL_DSP_CHANNELS _IOWR('P', 6, int)
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# define DSP_CAP_COPROC 0x00000800
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# define DSP_CAP_TRIGGER 0x00001000
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# define DSP_CAP_MMAP 0x00002000
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# define PCM_CAP_INPUT 0x00004000
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# define PCM_CAP_OUTPUT 0x00008000
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# define PCM_CAP_MODEM 0x00010000
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# define PCM_CAP_HIDDEN 0x00020000
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#define SNDCTL_DSP_GETTRIGGER _IOR ('P', 16, int)
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#define SNDCTL_DSP_SETTRIGGER _IOW ('P', 16, int)
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# define PCM_ENABLE_INPUT 0x00000001
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@ -291,6 +302,77 @@ typedef struct buffmem_desc {
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int size;
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} buffmem_desc;
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/* Some OSSv4 calls. */
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#define OSS_DEVNODE_SIZE 32
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#define OSS_LABEL_SIZE 16
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#define OSS_LONGNAME_SIZE 64
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#define OSS_MAX_AUDIO_DEVS 64
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#define SNDCTL_SYSINFO _IOR ('P',24, struct oss_sysinfo)
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#define SNDCTL_AUDIOINFO _IOWR ('P',25, struct oss_audioinfo)
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#define SNDCTL_ENGINEINFO _IOWR ('P',26, struct oss_audioinfo)
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#define SNDCTL_DSP_GETPLAYVOL _IOR ('P',27, uint)
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#define SNDCTL_DSP_SETPLAYVOL _IOW ('P',28, uint)
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#define SNDCTL_DSP_GETRECVOL _IOR ('P',29, uint)
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#define SNDCTL_DSP_SETRECVOL _IOW ('P',30, uint)
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#define SNDCTL_DSP_SKIP _IO ('P',31)
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#define SNDCTL_DSP_SILENCE _IO ('P',32)
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typedef struct oss_sysinfo {
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char product[32];
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char version[32];
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int versionnum;
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char options[128]; /* Future use */
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int numaudios;
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int openedaudio[8]; /* Obsolete */
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int numsynths; /* Obsolete */
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int nummidis;
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int numtimers;
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int nummixers;
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int openedmidi[8];
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int numcards;
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int numaudioengines;
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char license[16];
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char revision_info[256]; /* Internal Use */
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int filler[172]; /* For expansion */
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} oss_sysinfo;
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typedef struct oss_audioinfo {
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int dev; /* Set by caller */
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char name[OSS_LONGNAME_SIZE];
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int busy;
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int pid;
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int caps;
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int iformats;
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int oformats;
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int magic; /* Unused */
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char cmd[OSS_LONGNAME_SIZE];
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int card_number;
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int port_number;
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int mixer_dev;
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int legacy_device; /* Obsolete */
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int enabled;
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int flags; /* Reserved */
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int min_rate;
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int max_rate;
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int min_channels;
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int max_channels;
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int binding; /* Reserved */
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int rate_source;
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char handle[32];
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#define OSS_MAX_SAMPLE_RATES 20
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int nrates;
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int rates[OSS_MAX_SAMPLE_RATES];
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char song_name[OSS_LONGNAME_SIZE];
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char label[OSS_LABEL_SIZE];
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int latency; /* In usecs -1 = unknown */
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char devnode[OSS_DEVNODE_SIZE];
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int next_play_engine;
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int next_rec_engine;
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int filler[184]; /* For expansion */
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} oss_audioinfo;
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#define ioctl _oss_ioctl
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/*
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* If we already included <sys/ioctl.h>, then we define our own prototype,
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