66ef8af5b0
this introduces a new buffering mechanism which results in dramatic simplification of the channel manager. as several structures have changed, we take the opportunity to move their definitions into the source files where they are used, make them private and de-typedef them. the sound drivers are updated to use snd_setup_intr instead of bus_setup_intr, and to comply with the de-typedefed structures. the ac97, mixer and channel layers have been updated with finegrained locking, as have some drivers- not all though. the rest will follow soon.
222 lines
6.5 KiB
C
222 lines
6.5 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/bio.h>
|
|
#endif
|
|
#include <sys/buf.h>
|
|
#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/soundcard.h>
|
|
#include <sys/sysctl.h>
|
|
#include <isa/isavar.h>
|
|
#include <sys/kobj.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#if __FreeBSD_version > 500000
|
|
#define USING_MUTEX
|
|
#define USING_DEVFS
|
|
#endif
|
|
#define SND_DYNSYSCTL
|
|
|
|
#else
|
|
struct isa_device { int dummy; };
|
|
#define d_open_t void
|
|
#define d_close_t void
|
|
#define d_read_t void
|
|
#define d_write_t void
|
|
#define d_ioctl_t void
|
|
#define d_select_t void
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _OS_H_ */
|
|
|
|
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 SND_STATUSLEN 64
|
|
/* descriptor of audio device */
|
|
struct snddev_info {
|
|
struct pcm_channel *play, *rec, **aplay, **arec, *fakechan;
|
|
int *ref;
|
|
unsigned playcount, reccount, chancount, maxchans;
|
|
struct snd_mixer *mixer;
|
|
unsigned flags;
|
|
void *devinfo;
|
|
device_t dev;
|
|
char status[SND_STATUSLEN];
|
|
struct sysctl_ctx_list sysctl_tree;
|
|
struct sysctl_oid *sysctl_tree_top;
|
|
struct mtx mutex;
|
|
};
|
|
|
|
#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
|
|
|
|
#define MAGIC(unit) (0xa4d10de0 + unit)
|
|
|
|
#define SD_F_SIMPLEX 0x00000001
|
|
#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);
|
|
|
|
/*
|
|
* 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 DSP_DEFAULT_SPEED 8000
|
|
|
|
#define ON 1
|
|
#define OFF 0
|
|
|
|
#ifdef _KERNEL
|
|
|
|
/*
|
|
* 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);
|
|
|
|
int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo);
|
|
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);
|
|
void snd_mtxfree(void *m);
|
|
void snd_mtxassert(void *m);
|
|
void snd_mtxlock(void *m);
|
|
void snd_mtxunlock(void *m);
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
/* 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 */
|