1 /*- 2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org> 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/buf.h> 57 #endif 58 #include <machine/resource.h> 59 #include <machine/bus.h> 60 #include <sys/rman.h> 61 #include <sys/limits.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 #include <sys/condvar.h> 78 79 #define USING_MUTEX 80 #define USING_DEVFS 81 #else 82 #define INTR_TYPE_AV INTR_TYPE_TTY 83 #define INTR_MPSAFE 0 84 #endif 85 86 #define SND_DYNSYSCTL 87 88 struct pcm_channel; 89 struct pcm_feeder; 90 struct snd_dbuf; 91 struct snd_mixer; 92 93 #include <dev/sound/pcm/buffer.h> 94 #include <dev/sound/pcm/channel.h> 95 #include <dev/sound/pcm/feeder.h> 96 #include <dev/sound/pcm/mixer.h> 97 #include <dev/sound/pcm/dsp.h> 98 99 #define PCM_SOFTC_SIZE 512 100 101 #define SND_STATUSLEN 64 102 103 #define SOUND_MODVER 1 104 105 #define SOUND_MINVER 1 106 #define SOUND_PREFVER SOUND_MODVER 107 #define SOUND_MAXVER 1 108 109 /* 110 PROPOSAL: 111 each unit needs: 112 status, mixer, dsp, dspW, audio, sequencer, midi-in, seq2, sndproc = 9 devices 113 dspW and audio are deprecated. 114 dsp needs min 64 channels, will give it 256 115 116 minor = (unit << 20) + (dev << 16) + channel 117 currently minor = (channel << 16) + (unit << 4) + dev 118 119 nomenclature: 120 /dev/pcmX/dsp.(0..255) 121 /dev/pcmX/dspW 122 /dev/pcmX/audio 123 /dev/pcmX/status 124 /dev/pcmX/mixer 125 [etc.] 126 */ 127 128 #define PCMMAXCHAN 0xff 129 #define PCMMAXDEV 0x0f 130 #define PCMMAXUNIT 0x0f 131 #define PCMMINOR(x) (minor(x)) 132 #define PCMCHAN(x) ((PCMMINOR(x) >> 16) & PCMMAXCHAN) 133 #define PCMUNIT(x) ((PCMMINOR(x) >> 4) & PCMMAXUNIT) 134 #define PCMDEV(x) (PCMMINOR(x) & PCMMAXDEV) 135 #define PCMMKMINOR(u, d, c) ((((c) & PCMMAXCHAN) << 16) | \ 136 (((u) & PCMMAXUNIT) << 4) | ((d) & PCMMAXDEV)) 137 138 #define SD_F_SIMPLEX 0x00000001 139 #define SD_F_AUTOVCHAN 0x00000002 140 #define SD_F_SOFTPCMVOL 0x00000004 141 #define SD_F_PRIO_RD 0x10000000 142 #define SD_F_PRIO_WR 0x20000000 143 #define SD_F_PRIO_SET (SD_F_PRIO_RD | SD_F_PRIO_WR) 144 #define SD_F_DIR_SET 0x40000000 145 #define SD_F_TRANSIENT 0xf0000000 146 147 /* many variables should be reduced to a range. Here define a macro */ 148 #define RANGE(var, low, high) (var) = \ 149 (((var)<(low))? (low) : ((var)>(high))? (high) : (var)) 150 #define DSP_BUFFSIZE (8192) 151 152 /* 153 * Macros for reading/writing PCM sample / int values from bytes array. 154 * Since every process is done using signed integer (and to make our life 155 * less miserable), unsigned sample will be converted to its signed 156 * counterpart and restored during writing back. To avoid overflow, 157 * we truncate 32bit (and only 32bit) samples down to 24bit (see below 158 * for the reason), unless PCM_USE_64BIT_ARITH is defined. 159 */ 160 161 /* 162 * Automatically turn on 64bit arithmetic on suitable archs 163 * (amd64 64bit, ia64, etc..) for wider 32bit samples / integer processing. 164 */ 165 #if LONG_BIT >= 64 166 #undef PCM_USE_64BIT_ARITH 167 #define PCM_USE_64BIT_ARITH 1 168 #else 169 #if 0 170 #undef PCM_USE_64BIT_ARITH 171 #define PCM_USE_64BIT_ARITH 1 172 #endif 173 #endif 174 175 #ifdef PCM_USE_64BIT_ARITH 176 typedef int64_t intpcm_t; 177 #else 178 typedef int32_t intpcm_t; 179 #endif 180 181 /* 32bit fixed point shift */ 182 #define PCM_FXSHIFT 8 183 184 #define PCM_S8_MAX 0x7f 185 #define PCM_S8_MIN -0x80 186 #define PCM_S16_MAX 0x7fff 187 #define PCM_S16_MIN -0x8000 188 #define PCM_S24_MAX 0x7fffff 189 #define PCM_S24_MIN -0x800000 190 #ifdef PCM_USE_64BIT_ARITH 191 #if LONG_BIT >= 64 192 #define PCM_S32_MAX 0x7fffffffL 193 #define PCM_S32_MIN -0x80000000L 194 #else 195 #define PCM_S32_MAX 0x7fffffffLL 196 #define PCM_S32_MIN -0x80000000LL 197 #endif 198 #else 199 #define PCM_S32_MAX 0x7fffffff 200 #define PCM_S32_MIN (-0x7fffffff - 1) 201 #endif 202 203 /* Bytes-per-sample definition */ 204 #define PCM_8_BPS 1 205 #define PCM_16_BPS 2 206 #define PCM_24_BPS 3 207 #define PCM_32_BPS 4 208 209 #if BYTE_ORDER == LITTLE_ENDIAN 210 #define PCM_READ_S16_LE(b8) *((int16_t *)(b8)) 211 #define _PCM_READ_S32_LE(b8) *((int32_t *)(b8)) 212 #define PCM_READ_S16_BE(b8) \ 213 ((int32_t)((b8)[1] | ((int8_t)((b8)[0])) << 8)) 214 #define _PCM_READ_S32_BE(b8) \ 215 ((int32_t)((b8)[3] | (b8)[2] << 8 | (b8)[1] << 16 | \ 216 ((int8_t)((b8)[0])) << 24)) 217 218 #define PCM_WRITE_S16_LE(b8, val) *((int16_t *)(b8)) = (val) 219 #define _PCM_WRITE_S32_LE(b8, val) *((int32_t *)(b8)) = (val) 220 #define PCM_WRITE_S16_BE(bb8, vval) do { \ 221 int32_t val = (vval); \ 222 uint8_t *b8 = (bb8); \ 223 b8[1] = val; \ 224 b8[0] = val >> 8; \ 225 } while(0) 226 #define _PCM_WRITE_S32_BE(bb8, vval) do { \ 227 int32_t val = (vval); \ 228 uint8_t *b8 = (bb8); \ 229 b8[3] = val; \ 230 b8[2] = val >> 8; \ 231 b8[1] = val >> 16; \ 232 b8[0] = val >> 24; \ 233 } while(0) 234 235 #define PCM_READ_U16_LE(b8) ((int16_t)(*((uint16_t *)(b8)) ^ 0x8000)) 236 #define _PCM_READ_U32_LE(b8) ((int32_t)(*((uint32_t *)(b8)) ^ 0x80000000)) 237 #define PCM_READ_U16_BE(b8) \ 238 ((int32_t)((b8)[1] | ((int8_t)((b8)[0] ^ 0x80)) << 8)) 239 #define _PCM_READ_U32_BE(b8) \ 240 ((int32_t)((b8)[3] | (b8)[2] << 8 | (b8)[1] << 16 | \ 241 ((int8_t)((b8)[0] ^ 0x80)) << 24)) 242 243 #define PCM_WRITE_U16_LE(b8, val) *((uint16_t *)(b8)) = (val) ^ 0x8000 244 #define _PCM_WRITE_U32_LE(b8, val) *((uint32_t *)(b8)) = (val) ^ 0x80000000 245 #define PCM_WRITE_U16_BE(bb8, vval) do { \ 246 int32_t val = (vval); \ 247 uint8_t *b8 = (bb8); \ 248 b8[1] = val; \ 249 b8[0] = (val >> 8) ^ 0x80; \ 250 } while(0) 251 #define _PCM_WRITE_U32_BE(bb8, vval) do { \ 252 int32_t val = (vval); \ 253 uint8_t *b8 = (bb8); \ 254 b8[3] = val; \ 255 b8[2] = val >> 8; \ 256 b8[1] = val >> 16; \ 257 b8[0] = (val >> 24) ^ 0x80; \ 258 } while(0) 259 #else /* !LITTLE_ENDIAN */ 260 #define PCM_READ_S16_LE(b8) \ 261 ((int32_t)((b8)[0] | ((int8_t)((b8)[1])) << 8)) 262 #define _PCM_READ_S32_LE(b8) \ 263 ((int32_t)((b8)[0] | (b8)[1] << 8 | (b8)[2] << 16 | \ 264 ((int8_t)((b8)[3])) << 24)) 265 #define PCM_READ_S16_BE(b8) *((int16_t *)(b8)) 266 #define _PCM_READ_S32_BE(b8) *((int32_t *)(b8)) 267 268 #define PCM_WRITE_S16_LE(bb8, vval) do { \ 269 int32_t val = (vval); \ 270 uint8_t *b8 = (bb8); \ 271 b8[0] = val; \ 272 b8[1] = val >> 8; \ 273 } while(0) 274 #define _PCM_WRITE_S32_LE(bb8, vval) do { \ 275 int32_t val = (vval); \ 276 uint8_t *b8 = (bb8); \ 277 b8[0] = val; \ 278 b8[1] = val >> 8; \ 279 b8[2] = val >> 16; \ 280 b8[3] = val >> 24; \ 281 } while(0) 282 #define PCM_WRITE_S16_BE(b8, val) *((int16_t *)(b8)) = (val) 283 #define _PCM_WRITE_S32_BE(b8, val) *((int32_t *)(b8)) = (val) 284 285 #define PCM_READ_U16_LE(b8) \ 286 ((int32_t)((b8)[0] | ((int8_t)((b8)[1] ^ 0x80)) << 8)) 287 #define _PCM_READ_U32_LE(b8) \ 288 ((int32_t)((b8)[0] | (b8)[1] << 8 | (b8)[2] << 16 | \ 289 ((int8_t)((b8)[3] ^ 0x80)) << 24)) 290 #define PCM_READ_U16_BE(b8) ((int16_t)(*((uint16_t *)(b8)) ^ 0x8000)) 291 #define _PCM_READ_U32_BE(b8) ((int32_t)(*((uint32_t *)(b8)) ^ 0x80000000)) 292 293 #define PCM_WRITE_U16_LE(bb8, vval) do { \ 294 int32_t val = (vval); \ 295 uint8_t *b8 = (bb8); \ 296 b8[0] = val; \ 297 b8[1] = (val >> 8) ^ 0x80; \ 298 } while(0) 299 #define _PCM_WRITE_U32_LE(bb8, vval) do { \ 300 int32_t val = (vval); \ 301 uint8_t *b8 = (bb8); \ 302 b8[0] = val; \ 303 b8[1] = val >> 8; \ 304 b8[2] = val >> 16; \ 305 b8[3] = (val >> 24) ^ 0x80; \ 306 } while(0) 307 #define PCM_WRITE_U16_BE(b8, val) *((uint16_t *)(b8)) = (val) ^ 0x8000 308 #define _PCM_WRITE_U32_BE(b8, val) *((uint32_t *)(b8)) = (val) ^ 0x80000000 309 #endif 310 311 #define PCM_READ_S24_LE(b8) \ 312 ((int32_t)((b8)[0] | (b8)[1] << 8 | ((int8_t)((b8)[2])) << 16)) 313 #define PCM_READ_S24_BE(b8) \ 314 ((int32_t)((b8)[2] | (b8)[1] << 8 | ((int8_t)((b8)[0])) << 16)) 315 316 #define PCM_WRITE_S24_LE(bb8, vval) do { \ 317 int32_t val = (vval); \ 318 uint8_t *b8 = (bb8); \ 319 b8[0] = val; \ 320 b8[1] = val >> 8; \ 321 b8[2] = val >> 16; \ 322 } while(0) 323 #define PCM_WRITE_S24_BE(bb8, vval) do { \ 324 int32_t val = (vval); \ 325 uint8_t *b8 = (bb8); \ 326 b8[2] = val; \ 327 b8[1] = val >> 8; \ 328 b8[0] = val >> 16; \ 329 } while(0) 330 331 #define PCM_READ_U24_LE(b8) \ 332 ((int32_t)((b8)[0] | (b8)[1] << 8 | \ 333 ((int8_t)((b8)[2] ^ 0x80)) << 16)) 334 #define PCM_READ_U24_BE(b8) \ 335 ((int32_t)((b8)[2] | (b8)[1] << 8 | \ 336 ((int8_t)((b8)[0] ^ 0x80)) << 16)) 337 338 #define PCM_WRITE_U24_LE(bb8, vval) do { \ 339 int32_t val = (vval); \ 340 uint8_t *b8 = (bb8); \ 341 b8[0] = val; \ 342 b8[1] = val >> 8; \ 343 b8[2] = (val >> 16) ^ 0x80; \ 344 } while(0) 345 #define PCM_WRITE_U24_BE(bb8, vval) do { \ 346 int32_t val = (vval); \ 347 uint8_t *b8 = (bb8); \ 348 b8[2] = val; \ 349 b8[1] = val >> 8; \ 350 b8[0] = (val >> 16) ^ 0x80; \ 351 } while(0) 352 353 #ifdef PCM_USE_64BIT_ARITH 354 #define PCM_READ_S32_LE(b8) _PCM_READ_S32_LE(b8) 355 #define PCM_READ_S32_BE(b8) _PCM_READ_S32_BE(b8) 356 #define PCM_WRITE_S32_LE(b8, val) _PCM_WRITE_S32_LE(b8, val) 357 #define PCM_WRITE_S32_BE(b8, val) _PCM_WRITE_S32_BE(b8, val) 358 359 #define PCM_READ_U32_LE(b8) _PCM_READ_U32_LE(b8) 360 #define PCM_READ_U32_BE(b8) _PCM_READ_U32_BE(b8) 361 #define PCM_WRITE_U32_LE(b8, val) _PCM_WRITE_U32_LE(b8, val) 362 #define PCM_WRITE_U32_BE(b8, val) _PCM_WRITE_U32_BE(b8, val) 363 #else /* !PCM_USE_64BIT_ARITH */ 364 /* 365 * 24bit integer ?!? This is quite unfortunate, eh? Get the fact straight: 366 * Dynamic range for: 367 * 1) Human =~ 140db 368 * 2) 16bit = 96db (close enough) 369 * 3) 24bit = 144db (perfect) 370 * 4) 32bit = 196db (way too much) 371 * 5) Bugs Bunny = Gazillion!@%$Erbzzztt-EINVAL db 372 * Since we're not Bugs Bunny ..uh..err.. avoiding 64bit arithmetic, 24bit 373 * is pretty much sufficient for our signed integer processing. 374 */ 375 #define PCM_READ_S32_LE(b8) (_PCM_READ_S32_LE(b8) >> PCM_FXSHIFT) 376 #define PCM_READ_S32_BE(b8) (_PCM_READ_S32_BE(b8) >> PCM_FXSHIFT) 377 #define PCM_WRITE_S32_LE(b8, val) _PCM_WRITE_S32_LE(b8, (val) << PCM_FXSHIFT) 378 #define PCM_WRITE_S32_BE(b8, val) _PCM_WRITE_S32_BE(b8, (val) << PCM_FXSHIFT) 379 380 #define PCM_READ_U32_LE(b8) (_PCM_READ_U32_LE(b8) >> PCM_FXSHIFT) 381 #define PCM_READ_U32_BE(b8) (_PCM_READ_U32_BE(b8) >> PCM_FXSHIFT) 382 #define PCM_WRITE_U32_LE(b8, val) _PCM_WRITE_U32_LE(b8, (val) << PCM_FXSHIFT) 383 #define PCM_WRITE_U32_BE(b8, val) _PCM_WRITE_U32_BE(b8, (val) << PCM_FXSHIFT) 384 #endif 385 386 /* 387 * 8bit sample is pretty much useless since it doesn't provide 388 * sufficient dynamic range throughout our filtering process. 389 * For the sake of completeness, declare it anyway. 390 */ 391 #define PCM_READ_S8(b8) *((int8_t *)(b8)) 392 #define PCM_READ_S8_NE(b8) PCM_READ_S8(b8) 393 #define PCM_READ_U8(b8) ((int8_t)(*((uint8_t *)(b8)) ^ 0x80)) 394 #define PCM_READ_U8_NE(b8) PCM_READ_U8(b8) 395 396 #define PCM_WRITE_S8(b8, val) *((int8_t *)(b8)) = (val) 397 #define PCM_WRITE_S8_NE(b8, val) PCM_WRITE_S8(b8, val) 398 #define PCM_WRITE_U8(b8, val) *((uint8_t *)(b8)) = (val) ^ 0x80 399 #define PCM_WRITE_U8_NE(b8, val) PCM_WRITE_U8(b8, val) 400 401 #define PCM_CLAMP_S8(val) \ 402 (((val) > PCM_S8_MAX) ? PCM_S8_MAX : \ 403 (((val) < PCM_S8_MIN) ? PCM_S8_MIN : (val))) 404 #define PCM_CLAMP_S16(val) \ 405 (((val) > PCM_S16_MAX) ? PCM_S16_MAX : \ 406 (((val) < PCM_S16_MIN) ? PCM_S16_MIN : (val))) 407 #define PCM_CLAMP_S24(val) \ 408 (((val) > PCM_S24_MAX) ? PCM_S24_MAX : \ 409 (((val) < PCM_S24_MIN) ? PCM_S24_MIN : (val))) 410 411 #ifdef PCM_USE_64BIT_ARITH 412 #define PCM_CLAMP_S32(val) \ 413 (((val) > PCM_S32_MAX) ? PCM_S32_MAX : \ 414 (((val) < PCM_S32_MIN) ? PCM_S32_MIN : (val))) 415 #else 416 #define PCM_CLAMP_S32(val) \ 417 (((val) > PCM_S24_MAX) ? PCM_S32_MAX : \ 418 (((val) < PCM_S24_MIN) ? PCM_S32_MIN : \ 419 ((val) << PCM_FXSHIFT))) 420 #endif 421 422 #define PCM_CLAMP_U8(val) PCM_CLAMP_S8(val) 423 #define PCM_CLAMP_U16(val) PCM_CLAMP_S16(val) 424 #define PCM_CLAMP_U24(val) PCM_CLAMP_S24(val) 425 #define PCM_CLAMP_U32(val) PCM_CLAMP_S32(val) 426 427 /* make figuring out what a format is easier. got AFMT_STEREO already */ 428 #define AFMT_32BIT (AFMT_S32_LE | AFMT_S32_BE | AFMT_U32_LE | AFMT_U32_BE) 429 #define AFMT_24BIT (AFMT_S24_LE | AFMT_S24_BE | AFMT_U24_LE | AFMT_U24_BE) 430 #define AFMT_16BIT (AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE) 431 #define AFMT_8BIT (AFMT_MU_LAW | AFMT_A_LAW | AFMT_U8 | AFMT_S8) 432 #define AFMT_SIGNED (AFMT_S32_LE | AFMT_S32_BE | AFMT_S24_LE | AFMT_S24_BE | \ 433 AFMT_S16_LE | AFMT_S16_BE | AFMT_S8) 434 #define AFMT_BIGENDIAN (AFMT_S32_BE | AFMT_U32_BE | AFMT_S24_BE | AFMT_U24_BE | \ 435 AFMT_S16_BE | AFMT_U16_BE) 436 437 struct pcm_channel *fkchan_setup(device_t dev); 438 int fkchan_kill(struct pcm_channel *c); 439 440 /* XXX Flawed definition. I'll fix it someday. */ 441 #define SND_MAXVCHANS PCMMAXCHAN 442 443 /* 444 * Minor numbers for the sound driver. 445 * 446 * Unfortunately Creative called the codec chip of SB as a DSP. For this 447 * reason the /dev/dsp is reserved for digitized audio use. There is a 448 * device for true DSP processors but it will be called something else. 449 * In v3.0 it's /dev/sndproc but this could be a temporary solution. 450 */ 451 452 #define SND_DEV_CTL 0 /* Control port /dev/mixer */ 453 #define SND_DEV_SEQ 1 /* Sequencer /dev/sequencer */ 454 #define SND_DEV_MIDIN 2 /* Raw midi access */ 455 #define SND_DEV_DSP 3 /* Digitized voice /dev/dsp */ 456 #define SND_DEV_AUDIO 4 /* Sparc compatible /dev/audio */ 457 #define SND_DEV_DSP16 5 /* Like /dev/dsp but 16 bits/sample */ 458 #define SND_DEV_STATUS 6 /* /dev/sndstat */ 459 /* #7 not in use now. */ 460 #define SND_DEV_SEQ2 8 /* /dev/sequencer, level 2 interface */ 461 #define SND_DEV_SNDPROC 9 /* /dev/sndproc for programmable devices */ 462 #define SND_DEV_PSS SND_DEV_SNDPROC /* ? */ 463 #define SND_DEV_NORESET 10 464 #define SND_DEV_DSPHW 11 /* specific channel request */ 465 466 #define DSP_DEFAULT_SPEED 8000 467 468 #define ON 1 469 #define OFF 0 470 471 extern int pcm_veto_load; 472 extern int snd_unit; 473 extern int snd_maxautovchans; 474 extern int snd_verbose; 475 extern devclass_t pcm_devclass; 476 extern struct unrhdr *pcmsg_unrhdr; 477 478 /* 479 * some macros for debugging purposes 480 * DDB/DEB to enable/disable debugging stuff 481 * BVDDB to enable debugging when bootverbose 482 */ 483 #define BVDDB(x) if (bootverbose) x 484 485 #ifndef DEB 486 #define DEB(x) 487 #endif 488 489 SYSCTL_DECL(_hw_snd); 490 491 struct pcm_channel *pcm_getfakechan(struct snddev_info *d); 492 int pcm_chnalloc(struct snddev_info *d, struct pcm_channel **ch, int direction, pid_t pid, int chnum); 493 int pcm_chnrelease(struct pcm_channel *c); 494 int pcm_chnref(struct pcm_channel *c, int ref); 495 int pcm_inprog(struct snddev_info *d, int delta); 496 497 struct pcm_channel *pcm_chn_create(struct snddev_info *d, struct pcm_channel *parent, kobj_class_t cls, int dir, void *devinfo); 498 int pcm_chn_destroy(struct pcm_channel *ch); 499 int pcm_chn_add(struct snddev_info *d, struct pcm_channel *ch); 500 int pcm_chn_remove(struct snddev_info *d, struct pcm_channel *ch); 501 502 int pcm_addchan(device_t dev, int dir, kobj_class_t cls, void *devinfo); 503 unsigned int pcm_getbuffersize(device_t dev, unsigned int minbufsz, unsigned int deflt, unsigned int maxbufsz); 504 int pcm_register(device_t dev, void *devinfo, int numplay, int numrec); 505 int pcm_unregister(device_t dev); 506 int pcm_setstatus(device_t dev, char *str); 507 u_int32_t pcm_getflags(device_t dev); 508 void pcm_setflags(device_t dev, u_int32_t val); 509 void *pcm_getdevinfo(device_t dev); 510 511 512 int snd_setup_intr(device_t dev, struct resource *res, int flags, 513 driver_intr_t hand, void *param, void **cookiep); 514 515 void *snd_mtxcreate(const char *desc, const char *type); 516 void snd_mtxfree(void *m); 517 void snd_mtxassert(void *m); 518 #define snd_mtxlock(m) mtx_lock(m) 519 #define snd_mtxunlock(m) mtx_unlock(m) 520 521 int sysctl_hw_snd_vchans(SYSCTL_HANDLER_ARGS); 522 523 typedef int (*sndstat_handler)(struct sbuf *s, device_t dev, int verbose); 524 int sndstat_acquire(void); 525 int sndstat_release(void); 526 int sndstat_register(device_t dev, char *str, sndstat_handler handler); 527 int sndstat_registerfile(char *str); 528 int sndstat_unregister(device_t dev); 529 int sndstat_unregisterfile(char *str); 530 531 #define SND_DECLARE_FILE(version) \ 532 _SND_DECLARE_FILE(__LINE__, version) 533 534 #define _SND_DECLARE_FILE(uniq, version) \ 535 __SND_DECLARE_FILE(uniq, version) 536 537 #define __SND_DECLARE_FILE(uniq, version) \ 538 static char sndstat_vinfo[] = version; \ 539 SYSINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_registerfile, sndstat_vinfo); \ 540 SYSUNINIT(sdf_ ## uniq, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, sndstat_unregisterfile, sndstat_vinfo); 541 542 /* usage of flags in device config entry (config file) */ 543 #define DV_F_DRQ_MASK 0x00000007 /* mask for secondary drq */ 544 #define DV_F_DUAL_DMA 0x00000010 /* set to use secondary dma channel */ 545 546 /* ought to be made obsolete but still used by mss */ 547 #define DV_F_DEV_MASK 0x0000ff00 /* force device type/class */ 548 #define DV_F_DEV_SHIFT 8 /* force device type/class */ 549 550 #define PCM_DEBUG_MTX 551 552 /* 553 * this is rather kludgey- we need to duplicate these struct def'ns from sound.c 554 * so that the macro versions of pcm_{,un}lock can dereference them. 555 * we also have to do this now makedev() has gone away. 556 */ 557 558 struct snddev_channel { 559 SLIST_ENTRY(snddev_channel) link; 560 struct pcm_channel *channel; 561 int chan_num; 562 struct cdev *dsp_devt; 563 struct cdev *dspW_devt; 564 struct cdev *audio_devt; 565 struct cdev *dspHW_devt; 566 }; 567 568 struct snddev_info { 569 SLIST_HEAD(, snddev_channel) channels; 570 struct pcm_channel *fakechan; 571 unsigned devcount, playcount, reccount, vchancount; 572 unsigned flags; 573 int inprog; 574 unsigned int bufsz; 575 void *devinfo; 576 device_t dev; 577 char status[SND_STATUSLEN]; 578 struct mtx *lock; 579 struct cdev *mixer_dev; 580 581 }; 582 583 void sound_oss_sysinfo(oss_sysinfo *); 584 585 #ifdef PCM_DEBUG_MTX 586 #define pcm_lock(d) mtx_lock(((struct snddev_info *)(d))->lock) 587 #define pcm_unlock(d) mtx_unlock(((struct snddev_info *)(d))->lock) 588 #else 589 void pcm_lock(struct snddev_info *d); 590 void pcm_unlock(struct snddev_info *d); 591 #endif 592 593 #ifdef KLD_MODULE 594 #define PCM_KLDSTRING(a) ("kld " # a) 595 #else 596 #define PCM_KLDSTRING(a) "" 597 #endif 598 599 #endif /* _KERNEL */ 600 601 #endif /* _OS_H_ */ 602