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: src/sys/dev/sound/pcm/sound.h,v 1.10.2.11 2002/04/22 15:49:36 cg Exp $ 28 * $DragonFly: src/sys/dev/sound/pcm/sound.h,v 1.8 2006/04/30 17:22:17 dillon Exp $ 29 */ 30 31 /* 32 * first, include kernel header files. 33 */ 34 35 #ifndef _OS_H_ 36 #define _OS_H_ 37 38 #ifdef _KERNEL 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> 45 #include <sys/tty.h> 46 #include <sys/proc.h> 47 #include <sys/kernel.h> /* for DATA_SET */ 48 #include <sys/module.h> 49 #include <sys/conf.h> 50 #include <sys/file.h> 51 #include <sys/uio.h> 52 #include <sys/syslog.h> 53 #include <sys/errno.h> 54 #include <sys/malloc.h> 55 #include <sys/bus.h> 56 #if defined(__FreeBSD__) && __FreeBSD_version > 500000 57 #include <sys/bio.h> 58 #endif 59 #include <sys/buf.h> 60 #include <machine/clock.h> /* for DELAY */ 61 #include <machine/resource.h> 62 #include <machine/bus.h> 63 #include <sys/rman.h> 64 #include <sys/mman.h> 65 #include <sys/poll.h> 66 #include <sys/sbuf.h> 67 #include <sys/soundcard.h> 68 #include <sys/sysctl.h> 69 #include <sys/thread2.h> 70 #include <bus/isa/isavar.h> 71 #include <sys/kobj.h> 72 #include <vm/vm.h> 73 #include <vm/pmap.h> 74 75 #undef USING_MUTEX 76 #undef USING_DEVFS 77 78 #if defined(__FreeBSD__) && __FreeBSD_version > 500000 79 #define USING_MUTEX 80 #define USING_DEVFS 81 #endif 82 83 #define SND_DYNSYSCTL 84 85 struct pcm_channel; 86 struct pcm_feeder; 87 struct snd_dbuf; 88 struct snd_mixer; 89 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> 94 #include <dev/sound/pcm/dsp.h> 95 96 #define PCM_SOFTC_SIZE 512 97 98 #define SND_STATUSLEN 64 99 /* descriptor of audio device */ 100 101 #define PCM_MODVER 1 102 103 #define PCM_MINVER 1 104 #define PCM_PREFVER PCM_MODVER 105 #define PCM_MAXVER 1 106 107 /* 108 PROPOSAL: 109 each unit needs: 110 status, mixer, dsp, dspW, audio, sequencer, midi-in, seq2, sndproc = 9 devices 111 dspW and audio are deprecated. 112 dsp needs min 64 channels, will give it 256 113 114 minor = (unit << 20) + (dev << 16) + channel 115 currently minor = (channel << 16) + (unit << 4) + dev 116 117 nomenclature: 118 /dev/pcmX/dsp.(0..255) 119 /dev/pcmX/dspW 120 /dev/pcmX/audio 121 /dev/pcmX/status 122 /dev/pcmX/mixer 123 [etc.] 124 */ 125 126 #define PCMMINOR(x) (minor(x)) 127 #define PCMCHAN(x) ((PCMMINOR(x) & 0x00ff0000) >> 16) 128 #define PCMUNIT(x) ((PCMMINOR(x) & 0x000000f0) >> 4) 129 #define PCMDEV(x) (PCMMINOR(x) & 0x0000000f) 130 #define PCMMKMINOR(u, d, c) ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f)) 131 132 #define SD_F_SIMPLEX 0x00000001 133 #define SD_F_AUTOVCHAN 0x00000002 134 #define SD_F_PRIO_RD 0x10000000 135 #define SD_F_PRIO_WR 0x20000000 136 #define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR) 137 #define SD_F_DIR_SET 0x40000000 138 #define SD_F_TRANSIENT 0xf0000000 139 140 /* many variables should be reduced to a range. Here define a macro */ 141 #define RANGE(var, low, high) (var) = \ 142 (((var)<(low))? (low) : ((var)>(high))? (high) : (var)) 143 #define DSP_BUFFSIZE (8192) 144 145 /* make figuring out what a format is easier. got AFMT_STEREO already */ 146 #define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE) 147 #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE) 148 #define AFMT_8BIT (AFMT_U8 | AFMT_S8) 149 #define AFMT_SIGNED (AFMT_S16_LE | AFMT_S16_BE | AFMT_S8) 150 #define AFMT_BIGENDIAN (AFMT_S16_BE | AFMT_U16_BE) 151 152 struct pcm_channel *fkchan_setup(device_t dev); 153 int fkchan_kill(struct pcm_channel *c); 154 155 /* 156 * Major nuber for the sound driver. 157 */ 158 #define SND_CDEV_MAJOR 30 159 160 #define SND_MAXVCHANS 255 161 162 /* 163 * Minor numbers for the sound driver. 164 * 165 * Unfortunately Creative called the codec chip of SB as a DSP. For this 166 * reason the /dev/dsp is reserved for digitized audio use. There is a 167 * device for true DSP processors but it will be called something else. 168 * In v3.0 it's /dev/sndproc but this could be a temporary solution. 169 */ 170 171 #define SND_DEV_CTL 0 /* Control port /dev/mixer */ 172 #define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */ 173 #define SND_DEV_MIDIN 2 /* Raw midi access */ 174 #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ 175 #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ 176 #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ 177 #define SND_DEV_STATUS 6 /* /dev/sndstat */ 178 /* #7 not in use now. */ 179 #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ 180 #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ 181 #define SND_DEV_PSS SND_DEV_SNDPROC /* ? */ 182 #define SND_DEV_NORESET 10 183 #define SND_DEV_DSPREC 11 /* recording channels */ 184 185 #define DSP_DEFAULT_SPEED 8000 186 187 #define ON 1 188 #define OFF 0 189 190 extern int pcm_veto_load; 191 extern int snd_unit; 192 extern devclass_t pcm_devclass; 193 194 /* 195 * some macros for debugging purposes 196 * DDB/DEB to enable/disable debugging stuff 197 * BVDDB to enable debugging when bootverbose 198 */ 199 #define DDB(x) x /* XXX */ 200 #define BVDDB(x) if (bootverbose) x 201 202 #ifndef DEB 203 #define DEB(x) 204 #endif 205 206 SYSCTL_DECL(_hw_snd); 207 208 struct sysctl_ctx_list *snd_sysctl_tree(device_t dev); 209 struct sysctl_oid *snd_sysctl_tree_top(device_t dev); 210 211 void pcm_lock(struct snddev_info *d); 212 void pcm_unlock(struct snddev_info *d); 213 struct pcm_channel *pcm_getfakechan(struct snddev_info *d); 214 struct pcm_channel *pcm_chnalloc(struct snddev_info *d, int direction, pid_t pid, int chnum); 215 int pcm_chnrelease(struct pcm_channel *c); 216 int pcm_chnref(struct pcm_channel *c, int ref); 217 int pcm_inprog(struct snddev_info *d, int delta); 218 219 struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo); 220 int pcm_chn_destroy(struct pcm_channel *ch); 221 int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev); 222 int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev); 223 224 int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo); 225 unsigned int pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max); 226 int pcm_register(device_t dev, void *devinfo, int numplay, int numrec); 227 int pcm_unregister(device_t dev); 228 int pcm_setstatus(device_t dev, char *str); 229 u_int32_t pcm_getflags(device_t dev); 230 void pcm_setflags(device_t dev, u_int32_t val); 231 void *pcm_getdevinfo(device_t dev); 232 233 int snd_setup_intr(device_t dev, struct resource *res, int flags, 234 driver_intr_t hand, void *param, 235 void **cookiep, lwkt_serialize_t serializer); 236 237 void *snd_mtxcreate(const char *desc, const char *type); 238 void snd_mtxfree(void *m); 239 void snd_mtxassert(void *m); 240 void snd_mtxlock(void *m); 241 void snd_mtxunlock(void *m); 242 243 int sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS); 244 245 typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose); 246 int sndstat_register(device_t dev, char *str, sndstat_handler handler); 247 int sndstat_registerfile(char *str); 248 int sndstat_unregister(device_t dev); 249 int sndstat_unregisterfile(char *str); 250 int sndstat_busy(void); 251 252 #define SND_DECLARE_FILE(version) \ 253 _SND_DECLARE_FILE(__LINE__, version) 254 255 #define _SND_DECLARE_FILE(uniq, version) \ 256 __SND_DECLARE_FILE(uniq, version) 257 258 #define __SND_DECLARE_FILE(uniq, version) \ 259 static char sndstat_vinfo[] = version; \ 260 SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \ 261 SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo); 262 263 /* usage of flags in device config entry (config file) */ 264 #define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */ 265 #define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */ 266 267 /* ought to be made obsolete */ 268 #define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */ 269 #define DV_F_DEV_SHIFT 8 /* force device type/class */ 270 271 #endif /* _KERNEL */ 272 273 #endif /* _OS_H_ */ 274