2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org>
3 * Copyright by Hannu Savolainen 1995
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/sound/pcm/sound.h,v 1.63.2.2 2006/04/04 17:43:48 ariff Exp $
28 * $DragonFly: src/sys/dev/sound/pcm/sound.h,v 1.10 2007/01/04 21:47:03 corecode Exp $
32 * first, include kernel header files.
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/ioccom.h>
42 #include <sys/filio.h>
43 #include <sys/sockio.h>
44 #include <sys/fcntl.h>
47 #include <sys/kernel.h> /* for DATA_SET */
48 #include <sys/module.h>
52 #include <sys/syslog.h>
53 #include <sys/errno.h>
54 #include <sys/malloc.h>
57 #include <machine/clock.h> /* for DELAY */
58 #include <sys/resource.h>
64 #include <sys/soundcard.h>
65 #include <sys/sysctl.h>
67 #include <sys/thread2.h>
69 #include <machine/clock.h> /* for DELAY */
77 #include <sys/spinlock.h>
78 #include <sys/spinlock2.h>
81 #define INTR_TYPE_AV 0
90 #include <dev/sound/pcm/buffer.h>
91 #include <dev/sound/pcm/channel.h>
92 #include <dev/sound/pcm/feeder.h>
93 #include <dev/sound/pcm/mixer.h>
95 #define PCM_SOFTC_SIZE 512
97 #define SND_STATUSLEN 64
99 #define SOUND_MODVER 1
101 #define SOUND_MINVER 1
102 #define SOUND_PREFVER SOUND_MODVER
103 #define SOUND_MAXVER 1
108 status, mixer, dsp, dspW, audio, sequencer, midi-in, seq2, sndproc = 9 devices
109 dspW and audio are deprecated.
110 dsp needs min 64 channels, will give it 256
112 minor = (unit << 20) + (dev << 16) + channel
113 currently minor = (channel << 16) + (unit << 4) + dev
116 /dev/pcmX/dsp.(0..255)
124 #define PCMMAXCHAN 0xff
125 #define PCMMAXDEV 0x0f
126 #define PCMMAXUNIT 0x0f
127 #define PCMMINOR(x) (minor(x))
128 #define PCMCHAN(x) ((PCMMINOR(x) >> 16) & PCMMAXCHAN)
129 #define PCMUNIT(x) ((PCMMINOR(x) >> 4) & PCMMAXUNIT)
130 #define PCMDEV(x) (PCMMINOR(x) & PCMMAXDEV)
131 #define PCMMKMINOR(u, d, c) ((((c) & PCMMAXCHAN) << 16) | \
132 (((u) & PCMMAXUNIT) << 4) | ((d) & PCMMAXDEV))
134 #define SD_F_SIMPLEX 0x00000001
135 #define SD_F_AUTOVCHAN 0x00000002
136 #define SD_F_SOFTVOL 0x00000004
137 #define SD_F_PRIO_RD 0x10000000
138 #define SD_F_PRIO_WR 0x20000000
139 #define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR)
140 #define SD_F_DIR_SET 0x40000000
141 #define SD_F_TRANSIENT 0xf0000000
143 /* many variables should be reduced to a range. Here define a macro */
144 #define RANGE(var, low, high) (var) = \
145 (((var)<(low))? (low) : ((var)>(high))? (high) : (var))
146 #define DSP_BUFFSIZE (8192)
148 /* make figuring out what a format is easier. got AFMT_STEREO already */
149 #define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE)
150 #define AFMT_24BIT (AFMT_S24_LE | AFMT_S24_BE | AFMT_U24_LE | AFMT_U24_BE)
151 #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE)
152 #define AFMT_8BIT (AFMT_MU_LAW | AFMT_A_LAW | AFMT_U8 | AFMT_S8)
153 #define AFMT_SIGNED (AFMT_S32_LE | AFMT_S32_BE | AFMT_S24_LE | AFMT_S24_BE | \
154 AFMT_S16_LE | AFMT_S16_BE | AFMT_S8)
155 #define AFMT_BIGENDIAN (AFMT_S32_BE | AFMT_U32_BE | AFMT_S24_BE | AFMT_U24_BE | \
156 AFMT_S16_BE | AFMT_U16_BE)
158 struct pcm_channel *fkchan_setup(device_t dev);
159 int fkchan_kill(struct pcm_channel *c);
162 * Major nuber for the sound driver.
164 #define SND_CDEV_MAJOR 30
166 /* XXX Flawed definition. I'll fix it someday. */
167 #define SND_MAXVCHANS PCMMAXCHAN
170 * Minor numbers for the sound driver.
172 * Unfortunately Creative called the codec chip of SB as a DSP. For this
173 * reason the /dev/dsp is reserved for digitized audio use. There is a
174 * device for true DSP processors but it will be called something else.
175 * In v3.0 it's /dev/sndproc but this could be a temporary solution.
178 #define SND_DEV_CTL 0 /* Control port /dev/mixer */
179 #define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */
180 #define SND_DEV_MIDIN 2 /* Raw midi access */
181 #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */
182 #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */
183 #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */
184 #define SND_DEV_STATUS 6 /* /dev/sndstat */
185 /* #7 not in use now. */
186 #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */
187 #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */
188 #define SND_DEV_PSS SND_DEV_SNDPROC /* ? */
189 #define SND_DEV_NORESET 10
190 #define SND_DEV_DSPREC 11 /* recording channels */
192 #define DSP_DEFAULT_SPEED 8000
197 extern int pcm_veto_load;
199 extern devclass_t pcm_devclass;
202 * some macros for debugging purposes
203 * DDB/DEB to enable/disable debugging stuff
204 * BVDDB to enable debugging when bootverbose
206 #define BVDDB(x) if (bootverbose) x
212 SYSCTL_DECL(_hw_snd);
214 struct sysctl_ctx_list *snd_sysctl_tree(device_t dev);
215 struct sysctl_oid *snd_sysctl_tree_top(device_t dev);
217 struct pcm_channel *pcm_getfakechan(struct snddev_info *d);
218 int pcm_chnalloc(struct snddev_info *d, struct pcm_channel **ch, int direction, pid_t pid, int chnum);
219 int pcm_chnrelease(struct pcm_channel *c);
220 int pcm_chnref(struct pcm_channel *c, int ref);
221 int pcm_inprog(struct snddev_info *d, int delta);
223 struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo);
224 int pcm_chn_destroy(struct pcm_channel *ch);
225 int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch);
226 int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch);
228 int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo);
229 unsigned int pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max);
230 int pcm_register(device_t dev, void *devinfo, int numplay, int numrec);
231 int pcm_unregister(device_t dev);
232 int pcm_setstatus(device_t dev, char *str);
233 u_int32_t pcm_getflags(device_t dev);
234 void pcm_setflags(device_t dev, u_int32_t val);
235 void *pcm_getdevinfo(device_t dev);
238 int snd_setup_intr(device_t dev, struct resource *res, int flags,
239 driver_intr_t hand, void *param, void **cookiep);
241 void *snd_mtxcreate(const char *desc, const char *type);
242 void snd_mtxfree(void *m);
243 void snd_mtxassert(void *m);
244 #define snd_mtxlock(m) spin_lock_wr(m)
245 #define snd_mtxunlock(m) spin_unlock_wr(m)
247 int sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS);
249 typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose);
250 int sndstat_acquire(void);
251 int sndstat_release(void);
252 int sndstat_register(device_t dev, char *str, sndstat_handler handler);
253 int sndstat_registerfile(char *str);
254 int sndstat_unregister(device_t dev);
255 int sndstat_unregisterfile(char *str);
257 #define SND_DECLARE_FILE(version) \
258 _SND_DECLARE_FILE(__LINE__, version)
260 #define _SND_DECLARE_FILE(uniq, version) \
261 __SND_DECLARE_FILE(uniq, version)
263 #define __SND_DECLARE_FILE(uniq, version) \
264 static char sndstat_vinfo[] = version; \
265 SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \
266 SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo);
268 /* usage of flags in device config entry (config file) */
269 #define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */
270 #define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */
272 /* ought to be made obsolete but still used by mss */
273 #define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */
274 #define DV_F_DEV_SHIFT 8 /* force device type/class */
276 #define PCM_DEBUG_MTX
279 * this is rather kludgey- we need to duplicate these struct def'ns from sound.c
280 * so that the macro versions of pcm_{,un}lock can dereference them.
281 * we also have to do this now makedev() has gone away.
284 struct snddev_channel {
285 SLIST_ENTRY(snddev_channel) link;
286 struct pcm_channel *channel;
288 struct cdev *dsp_devt;
289 struct cdev *dspW_devt;
290 struct cdev *audio_devt;
291 struct cdev *dspr_devt;
295 SLIST_HEAD(, snddev_channel) channels;
296 struct pcm_channel *fakechan;
297 unsigned devcount, playcount, reccount, vchancount;
303 char status[SND_STATUSLEN];
304 struct sysctl_ctx_list sysctl_tree;
305 struct sysctl_oid *sysctl_tree_top;
306 struct spinlock *lock;
307 struct cdev *mixer_dev;
312 #define pcm_lock(d) spin_lock_wr(((struct snddev_info *)(d))->lock)
313 #define pcm_unlock(d) spin_unlock_wr(((struct snddev_info *)(d))->lock)
315 void pcm_lock(struct snddev_info *d);
316 void pcm_unlock(struct snddev_info *d);
320 #define PCM_KLDSTRING(a) ("kld " # a)
322 #define PCM_KLDSTRING(a) ""