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Diffstat (limited to 'sys/dev/sound/pcm/sound.h')
| -rw-r--r-- | sys/dev/sound/pcm/sound.h | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/sys/dev/sound/pcm/sound.h b/sys/dev/sound/pcm/sound.h new file mode 100644 index 0000000..5038a28 --- /dev/null +++ b/sys/dev/sound/pcm/sound.h @@ -0,0 +1,289 @@ +/* + * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> + * Copyright by Hannu Savolainen 1995 + * 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 AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +/* + * first, include kernel header files. + */ + +#ifndef _OS_H_ +#define _OS_H_ + +#ifdef _KERNEL +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/ioccom.h> +#include <sys/filio.h> +#include <sys/sockio.h> +#include <sys/fcntl.h> +#include <sys/tty.h> +#include <sys/proc.h> +#include <sys/kernel.h> /* for DATA_SET */ +#include <sys/module.h> +#include <sys/conf.h> +#include <sys/file.h> +#include <sys/uio.h> +#include <sys/syslog.h> +#include <sys/errno.h> +#include <sys/malloc.h> +#include <sys/bus.h> +#if __FreeBSD_version < 500000 +#include <sys/buf.h> +#endif +#include <machine/clock.h> /* for DELAY */ +#include <machine/resource.h> +#include <machine/bus.h> +#include <sys/rman.h> +#include <sys/mman.h> +#include <sys/poll.h> +#include <sys/sbuf.h> +#include <sys/soundcard.h> +#include <sys/sysctl.h> +#include <isa/isavar.h> +#include <sys/kobj.h> +#include <vm/vm.h> +#include <vm/pmap.h> + +#undef USING_MUTEX +#undef USING_DEVFS + +#if __FreeBSD_version > 500000 +#include <sys/lock.h> +#include <sys/mutex.h> + +#define USING_MUTEX +#define USING_DEVFS +#endif + +#define SND_DYNSYSCTL + +#ifndef INTR_MPSAFE +#define INTR_TYPE_AV INTR_TYPE_TTY +#endif + +#ifndef INTR_MPSAFE +#define INTR_MPSAFE 0 +#endif + +struct pcm_channel; +struct pcm_feeder; +struct snd_dbuf; +struct snd_mixer; + +#include <dev/sound/pcm/buffer.h> +#include <dev/sound/pcm/channel.h> +#include <dev/sound/pcm/feeder.h> +#include <dev/sound/pcm/mixer.h> +#include <dev/sound/pcm/dsp.h> + +#define PCM_SOFTC_SIZE 512 + +#define SND_STATUSLEN 64 +/* descriptor of audio device */ +#ifndef ISADMA_WRITE +#define ISADMA_WRITE B_WRITE +#define ISADMA_READ B_READ +#define ISADMA_RAW B_RAW +#endif + +#define PCM_MODVER 1 + +#define PCM_MINVER 1 +#define PCM_PREFVER PCM_MODVER +#define PCM_MAXVER 1 + +/* +PROPOSAL: +each unit needs: +status, mixer, dsp, dspW, audio, sequencer, midi-in, seq2, sndproc = 9 devices +dspW and audio are deprecated. +dsp needs min 64 channels, will give it 256 + +minor = (unit << 20) + (dev << 16) + channel +currently minor = (channel << 16) + (unit << 4) + dev + +nomenclature: + /dev/pcmX/dsp.(0..255) + /dev/pcmX/dspW + /dev/pcmX/audio + /dev/pcmX/status + /dev/pcmX/mixer + [etc.] +*/ + +#define PCMMINOR(x) (minor(x)) +#define PCMCHAN(x) ((PCMMINOR(x) & 0x00ff0000) >> 16) +#define PCMUNIT(x) ((PCMMINOR(x) & 0x000000f0) >> 4) +#define PCMDEV(x) (PCMMINOR(x) & 0x0000000f) +#define PCMMKMINOR(u, d, c) ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f)) + +#define SD_F_SIMPLEX 0x00000001 +#define SD_F_AUTOVCHAN 0x00000002 +#define SD_F_PRIO_RD 0x10000000 +#define SD_F_PRIO_WR 0x20000000 +#define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR) +#define SD_F_DIR_SET 0x40000000 +#define SD_F_TRANSIENT 0xf0000000 + +/* many variables should be reduced to a range. Here define a macro */ +#define RANGE(var, low, high) (var) = \ + (((var)<(low))? (low) : ((var)>(high))? (high) : (var)) +#define DSP_BUFFSIZE (8192) + +/* make figuring out what a format is easier. got AFMT_STEREO already */ +#define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE) +#define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE) +#define AFMT_8BIT (AFMT_U8 | AFMT_S8) +#define AFMT_SIGNED (AFMT_S16_LE | AFMT_S16_BE | AFMT_S8) +#define AFMT_BIGENDIAN (AFMT_S16_BE | AFMT_U16_BE) + +struct pcm_channel *fkchan_setup(device_t dev); +int fkchan_kill(struct pcm_channel *c); + +/* + * Major nuber for the sound driver. + */ +#define SND_CDEV_MAJOR 30 + +#define SND_MAXVCHANS 255 + +/* + * Minor numbers for the sound driver. + * + * Unfortunately Creative called the codec chip of SB as a DSP. For this + * reason the /dev/dsp is reserved for digitized audio use. There is a + * device for true DSP processors but it will be called something else. + * In v3.0 it's /dev/sndproc but this could be a temporary solution. + */ + +#define SND_DEV_CTL 0 /* Control port /dev/mixer */ +#define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */ +#define SND_DEV_MIDIN 2 /* Raw midi access */ +#define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ +#define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ +#define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ +#define SND_DEV_STATUS 6 /* /dev/sndstat */ + /* #7 not in use now. */ +#define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ +#define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ +#define SND_DEV_PSS SND_DEV_SNDPROC /* ? */ +#define SND_DEV_NORESET 10 +#define SND_DEV_DSPREC 11 /* recording channels */ + +#define DSP_DEFAULT_SPEED 8000 + +#define ON 1 +#define OFF 0 + +extern int pcm_veto_load; +extern int snd_unit; +extern devclass_t pcm_devclass; + +/* + * some macros for debugging purposes + * DDB/DEB to enable/disable debugging stuff + * BVDDB to enable debugging when bootverbose + */ +#define DDB(x) x /* XXX */ +#define BVDDB(x) if (bootverbose) x + +#ifndef DEB +#define DEB(x) +#endif + +SYSCTL_DECL(_hw_snd); + +struct sysctl_ctx_list *snd_sysctl_tree(device_t dev); +struct sysctl_oid *snd_sysctl_tree_top(device_t dev); + +void pcm_lock(struct snddev_info *d); +void pcm_unlock(struct snddev_info *d); +struct pcm_channel *pcm_getfakechan(struct snddev_info *d); +struct pcm_channel *pcm_chnalloc(struct snddev_info *d, int direction, pid_t pid, int chnum); +int pcm_chnrelease(struct pcm_channel *c); +int pcm_chnref(struct pcm_channel *c, int ref); +int pcm_inprog(struct snddev_info *d, int delta); + +struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo); +int pcm_chn_destroy(struct pcm_channel *ch); +int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev); +int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev); + +int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo); +unsigned int pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max); +int pcm_register(device_t dev, void *devinfo, int numplay, int numrec); +int pcm_unregister(device_t dev); +int pcm_setstatus(device_t dev, char *str); +u_int32_t pcm_getflags(device_t dev); +void pcm_setflags(device_t dev, u_int32_t val); +void *pcm_getdevinfo(device_t dev); + +int snd_setup_intr(device_t dev, struct resource *res, int flags, + driver_intr_t hand, void *param, void **cookiep); + +void *snd_mtxcreate(const char *desc, const char *type); +void snd_mtxfree(void *m); +void snd_mtxassert(void *m); +/* +void snd_mtxlock(void *m); +void snd_mtxunlock(void *m); +*/ +int sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS); + +typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose); +int sndstat_register(device_t dev, char *str, sndstat_handler handler); +int sndstat_registerfile(char *str); +int sndstat_unregister(device_t dev); +int sndstat_unregisterfile(char *str); +int sndstat_busy(void); + +#define SND_DECLARE_FILE(version) \ + _SND_DECLARE_FILE(__LINE__, version) + +#define _SND_DECLARE_FILE(uniq, version) \ + __SND_DECLARE_FILE(uniq, version) + +#define __SND_DECLARE_FILE(uniq, version) \ + static char sndstat_vinfo[] = version; \ + SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \ + SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo); + +/* usage of flags in device config entry (config file) */ +#define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */ +#define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */ + +/* ought to be made obsolete */ +#define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */ +#define DV_F_DEV_SHIFT 8 /* force device type/class */ + +#define snd_mtxlock(m) mtx_lock(m) +#define snd_mtxunlock(m) mtx_unlock(m) + +#endif /* _KERNEL */ + +#endif /* _OS_H_ */ |
