1 /*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
3 * Copyright by Hannu Savolainen 1995
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
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.
14 *
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
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: releng/5.1/sys/dev/sound/pcm/sound.h 110499 2003-02-07 14:05:34Z nyan $
28 */
29
30 /*
31 * first, include kernel header files.
32 */
33
34 #ifndef _OS_H_
35 #define _OS_H_
36
37 #ifdef _KERNEL
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/ioccom.h>
41 #include <sys/filio.h>
42 #include <sys/sockio.h>
43 #include <sys/fcntl.h>
44 #include <sys/tty.h>
45 #include <sys/proc.h>
46 #include <sys/kernel.h> /* for DATA_SET */
47 #include <sys/module.h>
48 #include <sys/conf.h>
49 #include <sys/file.h>
50 #include <sys/uio.h>
51 #include <sys/syslog.h>
52 #include <sys/errno.h>
53 #include <sys/malloc.h>
54 #include <sys/bus.h>
55 #if __FreeBSD_version < 500000
56 #include <sys/buf.h>
57 #endif
58 #include <machine/clock.h> /* for DELAY */
59 #include <machine/resource.h>
60 #include <machine/bus.h>
61 #include <sys/rman.h>
62 #include <sys/mman.h>
63 #include <sys/poll.h>
64 #include <sys/sbuf.h>
65 #include <sys/soundcard.h>
66 #include <sys/sysctl.h>
67 #include <sys/kobj.h>
68 #include <vm/vm.h>
69 #include <vm/pmap.h>
70
71 #undef USING_MUTEX
72 #undef USING_DEVFS
73
74 #if __FreeBSD_version > 500000
75 #include <sys/lock.h>
76 #include <sys/mutex.h>
77
78 #define USING_MUTEX
79 #define USING_DEVFS
80 #endif
81
82 #define SND_DYNSYSCTL
83
84 #ifndef INTR_MPSAFE
85 #define INTR_TYPE_AV INTR_TYPE_TTY
86 #endif
87
88 #ifndef INTR_MPSAFE
89 #define INTR_MPSAFE 0
90 #endif
91
92 struct pcm_channel;
93 struct pcm_feeder;
94 struct snd_dbuf;
95 struct snd_mixer;
96
97 #include <dev/sound/pcm/buffer.h>
98 #include <dev/sound/pcm/channel.h>
99 #include <dev/sound/pcm/feeder.h>
100 #include <dev/sound/pcm/mixer.h>
101 #include <dev/sound/pcm/dsp.h>
102
103 #define PCM_SOFTC_SIZE 512
104
105 #define SND_STATUSLEN 64
106
107 #define PCM_MODVER 1
108
109 #define PCM_MINVER 1
110 #define PCM_PREFVER PCM_MODVER
111 #define PCM_MAXVER 1
112
113 /*
114 PROPOSAL:
115 each unit needs:
116 status, mixer, dsp, dspW, audio, sequencer, midi-in, seq2, sndproc = 9 devices
117 dspW and audio are deprecated.
118 dsp needs min 64 channels, will give it 256
119
120 minor = (unit << 20) + (dev << 16) + channel
121 currently minor = (channel << 16) + (unit << 4) + dev
122
123 nomenclature:
124 /dev/pcmX/dsp.(0..255)
125 /dev/pcmX/dspW
126 /dev/pcmX/audio
127 /dev/pcmX/status
128 /dev/pcmX/mixer
129 [etc.]
130 */
131
132 #define PCMMINOR(x) (minor(x))
133 #define PCMCHAN(x) ((PCMMINOR(x) & 0x00ff0000) >> 16)
134 #define PCMUNIT(x) ((PCMMINOR(x) & 0x000000f0) >> 4)
135 #define PCMDEV(x) (PCMMINOR(x) & 0x0000000f)
136 #define PCMMKMINOR(u, d, c) ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f))
137
138 #define SD_F_SIMPLEX 0x00000001
139 #define SD_F_AUTOVCHAN 0x00000002
140 #define SD_F_PRIO_RD 0x10000000
141 #define SD_F_PRIO_WR 0x20000000
142 #define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR)
143 #define SD_F_DIR_SET 0x40000000
144 #define SD_F_TRANSIENT 0xf0000000
145
146 /* many variables should be reduced to a range. Here define a macro */
147 #define RANGE(var, low, high) (var) = \
148 (((var)<(low))? (low) : ((var)>(high))? (high) : (var))
149 #define DSP_BUFFSIZE (8192)
150
151 /* make figuring out what a format is easier. got AFMT_STEREO already */
152 #define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE)
153 #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE)
154 #define AFMT_8BIT (AFMT_U8 | AFMT_S8)
155 #define AFMT_SIGNED (AFMT_S16_LE | AFMT_S16_BE | AFMT_S8)
156 #define AFMT_BIGENDIAN (AFMT_S16_BE | AFMT_U16_BE)
157
158 struct pcm_channel *fkchan_setup(device_t dev);
159 int fkchan_kill(struct pcm_channel *c);
160
161 /*
162 * Major nuber for the sound driver.
163 */
164 #define SND_CDEV_MAJOR 30
165
166 #define SND_MAXVCHANS 255
167
168 /*
169 * Minor numbers for the sound driver.
170 *
171 * Unfortunately Creative called the codec chip of SB as a DSP. For this
172 * reason the /dev/dsp is reserved for digitized audio use. There is a
173 * device for true DSP processors but it will be called something else.
174 * In v3.0 it's /dev/sndproc but this could be a temporary solution.
175 */
176
177 #define SND_DEV_CTL 0 /* Control port /dev/mixer */
178 #define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */
179 #define SND_DEV_MIDIN 2 /* Raw midi access */
180 #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */
181 #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */
182 #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */
183 #define SND_DEV_STATUS 6 /* /dev/sndstat */
184 /* #7 not in use now. */
185 #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */
186 #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */
187 #define SND_DEV_PSS SND_DEV_SNDPROC /* ? */
188 #define SND_DEV_NORESET 10
189 #define SND_DEV_DSPREC 11 /* recording channels */
190
191 #define DSP_DEFAULT_SPEED 8000
192
193 #define ON 1
194 #define OFF 0
195
196 extern int pcm_veto_load;
197 extern int snd_unit;
198 extern devclass_t pcm_devclass;
199
200 /*
201 * some macros for debugging purposes
202 * DDB/DEB to enable/disable debugging stuff
203 * BVDDB to enable debugging when bootverbose
204 */
205 #define DDB(x) x /* XXX */
206 #define BVDDB(x) if (bootverbose) x
207
208 #ifndef DEB
209 #define DEB(x)
210 #endif
211
212 SYSCTL_DECL(_hw_snd);
213
214 struct sysctl_ctx_list *snd_sysctl_tree(device_t dev);
215 struct sysctl_oid *snd_sysctl_tree_top(device_t dev);
216
217 void pcm_lock(struct snddev_info *d);
218 void pcm_unlock(struct snddev_info *d);
219 struct pcm_channel *pcm_getfakechan(struct snddev_info *d);
220 struct pcm_channel *pcm_chnalloc(struct snddev_info *d, int direction, pid_t pid, int chnum);
221 int pcm_chnrelease(struct pcm_channel *c);
222 int pcm_chnref(struct pcm_channel *c, int ref);
223 int pcm_inprog(struct snddev_info *d, int delta);
224
225 struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo);
226 int pcm_chn_destroy(struct pcm_channel *ch);
227 int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev);
228 int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev);
229
230 int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo);
231 unsigned int pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max);
232 int pcm_register(device_t dev, void *devinfo, int numplay, int numrec);
233 int pcm_unregister(device_t dev);
234 int pcm_setstatus(device_t dev, char *str);
235 u_int32_t pcm_getflags(device_t dev);
236 void pcm_setflags(device_t dev, u_int32_t val);
237 void *pcm_getdevinfo(device_t dev);
238
239 int snd_setup_intr(device_t dev, struct resource *res, int flags,
240 driver_intr_t hand, void *param, void **cookiep);
241
242 void *snd_mtxcreate(const char *desc, const char *type);
243 void snd_mtxfree(void *m);
244 void snd_mtxassert(void *m);
245 /*
246 void snd_mtxlock(void *m);
247 void snd_mtxunlock(void *m);
248 */
249 int sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS);
250
251 typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose);
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);
256 int sndstat_busy(void);
257
258 #define SND_DECLARE_FILE(version) \
259 _SND_DECLARE_FILE(__LINE__, version)
260
261 #define _SND_DECLARE_FILE(uniq, version) \
262 __SND_DECLARE_FILE(uniq, version)
263
264 #define __SND_DECLARE_FILE(uniq, version) \
265 static char sndstat_vinfo[] = version; \
266 SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \
267 SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo);
268
269 /* usage of flags in device config entry (config file) */
270 #define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */
271 #define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */
272
273 /* ought to be made obsolete */
274 #define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */
275 #define DV_F_DEV_SHIFT 8 /* force device type/class */
276
277 #define snd_mtxlock(m) mtx_lock(m)
278 #define snd_mtxunlock(m) mtx_unlock(m)
279
280 #endif /* _KERNEL */
281
282 #endif /* _OS_H_ */
Cache object: 9d7f43f705678891909f0d3edfbfe7ee
|