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 * $FreeBSD$ 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/bio.h> 57 #endif 58 #include <sys/buf.h> 59 #include <machine/clock.h> /* for DELAY */ 60 #include <machine/resource.h> 61 #include <machine/bus.h> 62 #include <sys/rman.h> 63 #include <sys/mman.h> 64 #include <sys/poll.h> 65 #include <sys/sbuf.h> 66 #include <sys/soundcard.h> 67 #include <sys/sysctl.h> 68 #include <isa/isavar.h> 69 #include <sys/kobj.h> 70 #include <vm/vm.h> 71 #include <vm/pmap.h> 72 73 #undef USING_MUTEX 74 #undef USING_DEVFS 75 76 #if __FreeBSD_version > 500000 77 #define USING_MUTEX 78 #define USING_DEVFS 79 #endif 80 81 #define SND_DYNSYSCTL 82 83 #ifndef INTR_MPSAFE 84 #define INTR_TYPE_AV INTR_TYPE_TTY 85 #endif 86 87 #ifndef INTR_MPSAFE 88 #define INTR_MPSAFE 0 89 #endif 90 91 struct pcm_channel; 92 struct pcm_feeder; 93 struct snd_dbuf; 94 struct snd_mixer; 95 96 #include <dev/sound/pcm/buffer.h> 97 #include <dev/sound/pcm/channel.h> 98 #include <dev/sound/pcm/feeder.h> 99 #include <dev/sound/pcm/mixer.h> 100 #include <dev/sound/pcm/dsp.h> 101 102 #define PCM_SOFTC_SIZE 512 103 104 #define SND_STATUSLEN 64 105 /* descriptor of audio device */ 106 #ifndef ISADMA_WRITE 107 #define ISADMA_WRITE B_WRITE 108 #define ISADMA_READ B_READ 109 #define ISADMA_RAW B_RAW 110 #endif 111 112 #define PCM_MODVER 1 113 114 #define PCM_MINVER 1 115 #define PCM_PREFVER PCM_MODVER 116 #define PCM_MAXVER 1 117 118 /* 119 PROPOSAL: 120 each unit needs: 121 status, mixer, dsp, dspW, audio, sequencer, midi-in, seq2, sndproc = 9 devices 122 dspW and audio are deprecated. 123 dsp needs min 64 channels, will give it 256 124 125 minor = (unit << 20) + (dev << 16) + channel 126 currently minor = (channel << 16) + (unit << 4) + dev 127 128 nomenclature: 129 /dev/pcmX/dsp.(0..255) 130 /dev/pcmX/dspW 131 /dev/pcmX/audio 132 /dev/pcmX/status 133 /dev/pcmX/mixer 134 [etc.] 135 */ 136 137 #define PCMMINOR(x) (minor(x)) 138 #define PCMCHAN(x) ((PCMMINOR(x) & 0x00ff0000) >> 16) 139 #define PCMUNIT(x) ((PCMMINOR(x) & 0x000000f0) >> 4) 140 #define PCMDEV(x) (PCMMINOR(x) & 0x0000000f) 141 #define PCMMKMINOR(u, d, c) ((((c) & 0xff) << 16) | (((u) & 0x0f) << 4) | ((d) & 0x0f)) 142 143 #define SD_F_SIMPLEX 0x00000001 144 #define SD_F_AUTOVCHAN 0x00000002 145 #define SD_F_PRIO_RD 0x10000000 146 #define SD_F_PRIO_WR 0x20000000 147 #define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR) 148 #define SD_F_DIR_SET 0x40000000 149 #define SD_F_TRANSIENT 0xf0000000 150 151 /* many variables should be reduced to a range. Here define a macro */ 152 #define RANGE(var, low, high) (var) = \ 153 (((var)<(low))? (low) : ((var)>(high))? (high) : (var)) 154 #define DSP_BUFFSIZE (8192) 155 156 /* make figuring out what a format is easier. got AFMT_STEREO already */ 157 #define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE) 158 #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE) 159 #define AFMT_8BIT (AFMT_U8 | AFMT_S8) 160 #define AFMT_SIGNED (AFMT_S16_LE | AFMT_S16_BE | AFMT_S8) 161 #define AFMT_BIGENDIAN (AFMT_S16_BE | AFMT_U16_BE) 162 163 struct pcm_channel *fkchan_setup(device_t dev); 164 int fkchan_kill(struct pcm_channel *c); 165 166 /* 167 * Major nuber for the sound driver. 168 */ 169 #define SND_CDEV_MAJOR 30 170 171 #define SND_MAXVCHANS 255 172 173 /* 174 * Minor numbers for the sound driver. 175 * 176 * Unfortunately Creative called the codec chip of SB as a DSP. For this 177 * reason the /dev/dsp is reserved for digitized audio use. There is a 178 * device for true DSP processors but it will be called something else. 179 * In v3.0 it's /dev/sndproc but this could be a temporary solution. 180 */ 181 182 #define SND_DEV_CTL 0 /* Control port /dev/mixer */ 183 #define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */ 184 #define SND_DEV_MIDIN 2 /* Raw midi access */ 185 #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ 186 #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ 187 #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ 188 #define SND_DEV_STATUS 6 /* /dev/sndstat */ 189 /* #7 not in use now. */ 190 #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ 191 #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ 192 #define SND_DEV_PSS SND_DEV_SNDPROC /* ? */ 193 #define SND_DEV_NORESET 10 194 #define SND_DEV_DSPREC 11 /* recording channels */ 195 196 #define DSP_DEFAULT_SPEED 8000 197 198 #define ON 1 199 #define OFF 0 200 201 extern int snd_unit; 202 extern devclass_t pcm_devclass; 203 204 /* 205 * some macros for debugging purposes 206 * DDB/DEB to enable/disable debugging stuff 207 * BVDDB to enable debugging when bootverbose 208 */ 209 #define DDB(x) x /* XXX */ 210 #define BVDDB(x) if (bootverbose) x 211 212 #ifndef DEB 213 #define DEB(x) 214 #endif 215 216 SYSCTL_DECL(_hw_snd); 217 218 struct sysctl_ctx_list *snd_sysctl_tree(device_t dev); 219 struct sysctl_oid *snd_sysctl_tree_top(device_t dev); 220 221 void pcm_lock(struct snddev_info *d); 222 void pcm_unlock(struct snddev_info *d); 223 struct pcm_channel *pcm_getfakechan(struct snddev_info *d); 224 struct pcm_channel *pcm_chnalloc(struct snddev_info *d, int direction, pid_t pid, int chnum); 225 int pcm_chnrelease(struct pcm_channel *c); 226 int pcm_chnref(struct pcm_channel *c, int ref); 227 int pcm_inprog(struct snddev_info *d, int delta); 228 229 struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo); 230 int pcm_chn_destroy(struct pcm_channel *ch); 231 int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch, int mkdev); 232 int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch, int rmdev); 233 234 int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo); 235 unsigned int pcm_getbuffersize(device_t dev, unsigned int min, unsigned int deflt, unsigned int max); 236 int pcm_register(device_t dev, void *devinfo, int numplay, int numrec); 237 int pcm_unregister(device_t dev); 238 int pcm_setstatus(device_t dev, char *str); 239 u_int32_t pcm_getflags(device_t dev); 240 void pcm_setflags(device_t dev, u_int32_t val); 241 void *pcm_getdevinfo(device_t dev); 242 243 int snd_setup_intr(device_t dev, struct resource *res, int flags, 244 driver_intr_t hand, void *param, void **cookiep); 245 246 void *snd_mtxcreate(const char *desc); 247 void snd_mtxfree(void *m); 248 void snd_mtxassert(void *m); 249 void snd_mtxlock(void *m); 250 void snd_mtxunlock(void *m); 251 252 int sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS); 253 254 typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose); 255 int sndstat_register(device_t dev, char *str, sndstat_handler handler); 256 int sndstat_registerfile(char *str); 257 int sndstat_unregister(device_t dev); 258 int sndstat_unregisterfile(char *str); 259 int sndstat_busy(void); 260 261 #define SND_DECLARE_FILE(version) \ 262 _SND_DECLARE_FILE(__LINE__, version) 263 264 #define _SND_DECLARE_FILE(uniq, version) \ 265 __SND_DECLARE_FILE(uniq, version) 266 267 #define __SND_DECLARE_FILE(uniq, version) \ 268 static char sndstat_vinfo[] = version; \ 269 SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \ 270 SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo); 271 272 /* usage of flags in device config entry (config file) */ 273 #define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */ 274 #define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */ 275 276 /* ought to be made obsolete */ 277 #define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */ 278 #define DV_F_DEV_SHIFT 8 /* force device type/class */ 279 280 #endif /* _KERNEL */ 281 282 #endif /* _OS_H_ */ 283