/* * Copyright (c) 1999 Cameron Grant * 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 #include #include #include #include #include #include #include #include /* for DATA_SET */ #include #include #include #include #include #include #include #include #if __FreeBSD_version < 500000 #include #endif #include /* for DELAY */ #include #include #include #include #include #include #include #include #include #include #include #undef USING_MUTEX #undef USING_DEVFS #if __FreeBSD_version > 500000 #include #include #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 #include #include #include #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 pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch); 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. * we also have to do this now makedev() has gone away. */ struct snddev_channel { SLIST_ENTRY(snddev_channel) link; struct pcm_channel *channel; int chan_num; dev_t dsp_devt; dev_t dspW_devt; dev_t audio_devt; dev_t dspr_devt; }; 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; dev_t mixer_dev; }; #ifdef PCM_DEBUG_MTX #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_ */