freebsd-nq/sys/dev/sound/pcm/sound.h

312 lines
9.4 KiB
C

/*
* 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 <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
#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);
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);
#define snd_mtxlock(m) mtx_lock(m)
#define snd_mtxunlock(m) mtx_unlock(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 but still used by mss */
#define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */
#define DV_F_DEV_SHIFT 8 /* force device type/class */
#define PCM_DEBUG_MTX
/*
* this is rather kludgey- we need to duplicate these struct def'ns from sound.c
* so that the macro versions of pcm_{,un}lock can dereference them.
*/
#ifdef PCM_DEBUG_MTX
struct snddev_channel {
SLIST_ENTRY(snddev_channel) link;
struct pcm_channel *channel;
};
struct snddev_info {
SLIST_HEAD(, snddev_channel) channels;
struct pcm_channel *fakechan;
unsigned devcount, playcount, reccount, vchancount;
unsigned flags;
int inprog;
unsigned int bufsz;
void *devinfo;
device_t dev;
char status[SND_STATUSLEN];
struct sysctl_ctx_list sysctl_tree;
struct sysctl_oid *sysctl_tree_top;
struct mtx *lock;
};
#define pcm_lock(d) mtx_lock(((struct snddev_info *)(d))->lock)
#define pcm_unlock(d) mtx_unlock(((struct snddev_info *)(d))->lock)
#else
void pcm_lock(struct snddev_info *d);
void pcm_unlock(struct snddev_info *d);
#endif
#endif /* _KERNEL */
#endif /* _OS_H_ */