sys/dev/sound/isa/ad1816.c

   1 /*
   2  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
   3  * Copyright Luigi Rizzo, 1997,1998
   4  * Copyright by Hannu Savolainen 1994, 1995
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD: src/sys/dev/sound/isa/ad1816.c,v 1.7.2.9 2002/12/24 21:17:41 semenu Exp $
  29  * $DragonFly: src/sys/dev/sound/isa/ad1816.c,v 1.6 2006/12/23 00:26:25 swildner Exp $
  30  */
  31
  32 #include <dev/sound/pcm/sound.h>
  33 #include <dev/sound/isa/ad1816.h>
  34
  35 #include "mixer_if.h"
  36
  37 SND_DECLARE_FILE("$DragonFly: src/sys/dev/sound/isa/ad1816.c,v 1.6 2006/12/23 00:26:25 swildner Exp $");
  38
  39 struct ad1816_info;
  40
  41 struct ad1816_chinfo {
  42         struct ad1816_info *parent;
  43         struct pcm_channel *channel;
  44         struct snd_dbuf *buffer;
  45         int dir, blksz;
  46 };
  47
  48 struct ad1816_info {
  49         struct resource *io_base;       /* primary I/O address for the board */
  50         int io_rid;
  51         struct resource *irq;
  52         int irq_rid;
  53         struct resource *drq1;          /* play */
  54         int drq1_rid;
  55         struct resource *drq2;          /* rec */
  56         int drq2_rid;
  57         void *ih;
  58         bus_dma_tag_t parent_dmat;
  59         void *lock;
  60
  61         unsigned int bufsize;
  62         struct ad1816_chinfo pch, rch;
  63 };
  64
  65 static u_int32_t ad1816_fmt[] = {
  66         AFMT_U8,
  67         AFMT_STEREO | AFMT_U8,
  68         AFMT_S16_LE,
  69         AFMT_STEREO | AFMT_S16_LE,
  70         AFMT_MU_LAW,
  71         AFMT_STEREO | AFMT_MU_LAW,
  72         AFMT_A_LAW,
  73         AFMT_STEREO | AFMT_A_LAW,
  74         0
  75 };
  76
  77 static struct pcmchan_caps ad1816_caps = {4000, 55200, ad1816_fmt, 0};
  78
  79 #define AD1816_MUTE 31          /* value for mute */
  80
  81 static void
  82 ad1816_lock(struct ad1816_info *ad1816)
  83 {
  84         snd_mtxlock(ad1816->lock);
  85 }
  86
  87 static void
  88 ad1816_unlock(struct ad1816_info *ad1816)
  89 {
  90         snd_mtxunlock(ad1816->lock);
  91 }
  92
  93 static int
  94 port_rd(struct resource *port, int off)
  95 {
  96         if (port)
  97                 return bus_space_read_1(rman_get_bustag(port),
  98                                         rman_get_bushandle(port),
  99                                         off);
 100         else
 101                 return -1;
 102 }
 103
 104 static void
 105 port_wr(struct resource *port, int off, u_int8_t data)
 106 {
 107         if (port)
 108                 bus_space_write_1(rman_get_bustag(port),
 109                                   rman_get_bushandle(port),
 110                                   off, data);
 111 }
 112
 113 static int
 114 io_rd(struct ad1816_info *ad1816, int reg)
 115 {
 116         return port_rd(ad1816->io_base, reg);
 117 }
 118
 119 static void
 120 io_wr(struct ad1816_info *ad1816, int reg, u_int8_t data)
 121 {
 122         port_wr(ad1816->io_base, reg, data);
 123 }
 124
 125 static void
 126 ad1816_intr(void *arg)
 127 {
 128         struct ad1816_info *ad1816 = (struct ad1816_info *)arg;
 129         unsigned char   c, served = 0;
 130
 131         ad1816_lock(ad1816);
 132         /* get interupt status */
 133         c = io_rd(ad1816, AD1816_INT);
 134
 135         /* check for stray interupts */
 136         if (c & ~(AD1816_INTRCI | AD1816_INTRPI)) {
 137                 kprintf("pcm: stray int (%x)\n", c);
 138                 c &= AD1816_INTRCI | AD1816_INTRPI;
 139         }
 140         /* check for capture interupt */
 141         if (sndbuf_runsz(ad1816->rch.buffer) && (c & AD1816_INTRCI)) {
 142                 chn_intr(ad1816->rch.channel);
 143                 served |= AD1816_INTRCI;                /* cp served */
 144         }
 145         /* check for playback interupt */
 146         if (sndbuf_runsz(ad1816->pch.buffer) && (c & AD1816_INTRPI)) {
 147                 chn_intr(ad1816->pch.channel);
 148                 served |= AD1816_INTRPI;                /* pb served */
 149         }
 150         if (served == 0) {
 151                 /* this probably means this is not a (working) ad1816 chip, */
 152                 /* or an error in dma handling                              */
 153                 kprintf("pcm: int without reason (%x)\n", c);
 154                 c = 0;
 155         } else c &= ~served;
 156         io_wr(ad1816, AD1816_INT, c);
 157         c = io_rd(ad1816, AD1816_INT);
 158         if (c != 0) kprintf("pcm: int clear failed (%x)\n", c);
 159         ad1816_unlock(ad1816);
 160 }
 161
 162 static int
 163 ad1816_wait_init(struct ad1816_info *ad1816, int x)
 164 {
 165         int             n = 0;  /* to shut up the compiler... */
 166
 167         for (; x--;)
 168                 if ((n = (io_rd(ad1816, AD1816_ALE) & AD1816_BUSY)) == 0) DELAY(10);
 169                 else return n;
 170         kprintf("ad1816_wait_init failed 0x%02x.\n", n);
 171         return -1;
 172 }
 173
 174 static unsigned short
 175 ad1816_read(struct ad1816_info *ad1816, unsigned int reg)
 176 {
 177         u_short         x = 0;
 178
 179         if (ad1816_wait_init(ad1816, 100) == -1) return 0;
 180         io_wr(ad1816, AD1816_ALE, 0);
 181         io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK));
 182         if (ad1816_wait_init(ad1816, 100) == -1) return 0;
 183         x = (io_rd(ad1816, AD1816_HIGH) << 8) | io_rd(ad1816, AD1816_LOW);
 184         return x;
 185 }
 186
 187 static void
 188 ad1816_write(struct ad1816_info *ad1816, unsigned int reg, unsigned short data)
 189 {
 190         if (ad1816_wait_init(ad1816, 100) == -1) return;
 191         io_wr(ad1816, AD1816_ALE, (reg & AD1816_ALEMASK));
 192         io_wr(ad1816, AD1816_LOW,  (data & 0x000000ff));
 193         io_wr(ad1816, AD1816_HIGH, (data & 0x0000ff00) >> 8);
 194 }
 195
 196 /* -------------------------------------------------------------------- */
 197
 198 static int
 199 ad1816mix_init(struct snd_mixer *m)
 200 {
 201         mix_setdevs(m, AD1816_MIXER_DEVICES);
 202         mix_setrecdevs(m, AD1816_REC_DEVICES);
 203         return 0;
 204 }
 205
 206 static int
 207 ad1816mix_set(struct snd_mixer *m, unsigned dev, unsigned left, unsigned right)
 208 {
 209         struct ad1816_info *ad1816 = mix_getdevinfo(m);
 210         u_short reg = 0;
 211
 212         /* Scale volumes */
 213         left = AD1816_MUTE - (AD1816_MUTE * left) / 100;
 214         right = AD1816_MUTE - (AD1816_MUTE * right) / 100;
 215
 216         reg = (left << 8) | right;
 217
 218         /* do channel selective muting if volume is zero */
 219         if (left == AD1816_MUTE)        reg |= 0x8000;
 220         if (right == AD1816_MUTE)       reg |= 0x0080;
 221
 222         ad1816_lock(ad1816);
 223         switch (dev) {
 224         case SOUND_MIXER_VOLUME:        /* Register 14 master volume */
 225                 ad1816_write(ad1816, 14, reg);
 226                 break;
 227
 228         case SOUND_MIXER_CD:    /* Register 15 cd */
 229         case SOUND_MIXER_LINE1:
 230                 ad1816_write(ad1816, 15, reg);
 231                 break;
 232
 233         case SOUND_MIXER_SYNTH: /* Register 16 synth */
 234                 ad1816_write(ad1816, 16, reg);
 235                 break;
 236
 237         case SOUND_MIXER_PCM:   /* Register 4 pcm */
 238                 ad1816_write(ad1816, 4, reg);
 239                 break;
 240
 241         case SOUND_MIXER_LINE:
 242         case SOUND_MIXER_LINE3: /* Register 18 line in */
 243                 ad1816_write(ad1816, 18, reg);
 244                 break;
 245
 246         case SOUND_MIXER_MIC:   /* Register 19 mic volume */
 247                 ad1816_write(ad1816, 19, reg & ~0xff);  /* mic is mono */
 248                 break;
 249
 250         case SOUND_MIXER_IGAIN:
 251                 /* and now to something completely different ... */
 252                 ad1816_write(ad1816, 20, ((ad1816_read(ad1816, 20) & ~0x0f0f)
 253                 | (((AD1816_MUTE - left) / 2) << 8) /* four bits of adc gain */
 254                 | ((AD1816_MUTE - right) / 2)));
 255                 break;
 256
 257         default:
 258                 kprintf("ad1816_mixer_set(): unknown device.\n");
 259                 break;
 260         }
 261         ad1816_unlock(ad1816);
 262
 263         left = ((AD1816_MUTE - left) * 100) / AD1816_MUTE;
 264         right = ((AD1816_MUTE - right) * 100) / AD1816_MUTE;
 265
 266         return left | (right << 8);
 267 }
 268
 269 static int
 270 ad1816mix_setrecsrc(struct snd_mixer *m, u_int32_t src)
 271 {
 272         struct ad1816_info *ad1816 = mix_getdevinfo(m);
 273         int dev;
 274
 275         switch (src) {
 276         case SOUND_MASK_LINE:
 277         case SOUND_MASK_LINE3:
 278                 dev = 0x00;
 279                 break;
 280
 281         case SOUND_MASK_CD:
 282         case SOUND_MASK_LINE1:
 283                 dev = 0x20;
 284                 break;
 285
 286         case SOUND_MASK_MIC:
 287         default:
 288                 dev = 0x50;
 289                 src = SOUND_MASK_MIC;
 290         }
 291
 292         dev |= dev << 8;
 293         ad1816_lock(ad1816);
 294         ad1816_write(ad1816, 20, (ad1816_read(ad1816, 20) & ~0x7070) | dev);
 295         ad1816_unlock(ad1816);
 296         return src;
 297 }
 298
 299 static kobj_method_t ad1816mixer_methods[] = {
 300         KOBJMETHOD(mixer_init,          ad1816mix_init),
 301         KOBJMETHOD(mixer_set,           ad1816mix_set),
 302         KOBJMETHOD(mixer_setrecsrc,     ad1816mix_setrecsrc),
 303         { 0, 0 }
 304 };
 305 MIXER_DECLARE(ad1816mixer);
 306
 307 /* -------------------------------------------------------------------- */
 308 /* channel interface */
 309 static void *
 310 ad1816chan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
 311 {
 312         struct ad1816_info *ad1816 = devinfo;
 313         struct ad1816_chinfo *ch = (dir == PCMDIR_PLAY)? &ad1816->pch : &ad1816->rch;
 314
 315         ch->parent = ad1816;
 316         ch->channel = c;
 317         ch->buffer = b;
 318         if (sndbuf_alloc(ch->buffer, ad1816->parent_dmat, ad1816->bufsize) == -1) return NULL;
 319         return ch;
 320 }
 321
 322 static int
 323 ad1816chan_setdir(kobj_t obj, void *data, int dir)
 324 {
 325         struct ad1816_chinfo *ch = data;
 326         struct ad1816_info *ad1816 = ch->parent;
 327
 328         sndbuf_isadmasetup(ch->buffer, (dir == PCMDIR_PLAY)? ad1816->drq1 : ad1816->drq2);
 329         ch->dir = dir;
 330         return 0;
 331 }
 332
 333 static int
 334 ad1816chan_setformat(kobj_t obj, void *data, u_int32_t format)
 335 {
 336         struct ad1816_chinfo *ch = data;
 337         struct ad1816_info *ad1816 = ch->parent;
 338         int fmt = AD1816_U8, reg;
 339
 340         ad1816_lock(ad1816);
 341         if (ch->dir == PCMDIR_PLAY) {
 342                 reg = AD1816_PLAY;
 343                 ad1816_write(ad1816, 8, 0x0000);        /* reset base and current counter */
 344                 ad1816_write(ad1816, 9, 0x0000);        /* for playback and capture */
 345         } else {
 346                 reg = AD1816_CAPT;
 347                 ad1816_write(ad1816, 10, 0x0000);
 348                 ad1816_write(ad1816, 11, 0x0000);
 349         }
 350         switch (format & ~AFMT_STEREO) {
 351         case AFMT_A_LAW:
 352                 fmt = AD1816_ALAW;
 353                 break;
 354
 355         case AFMT_MU_LAW:
 356                 fmt = AD1816_MULAW;
 357                 break;
 358
 359         case AFMT_S16_LE:
 360                 fmt = AD1816_S16LE;
 361                 break;
 362
 363         case AFMT_S16_BE:
 364                 fmt = AD1816_S16BE;
 365                 break;
 366
 367         case AFMT_U8:
 368                 fmt = AD1816_U8;
 369                 break;
 370         }
 371         if (format & AFMT_STEREO) fmt |= AD1816_STEREO;
 372         io_wr(ad1816, reg, fmt);
 373         ad1816_unlock(ad1816);
 374
 375         return (0);
 376 }
 377
 378 static int
 379 ad1816chan_setspeed(kobj_t obj, void *data, u_int32_t speed)
 380 {
 381         struct ad1816_chinfo *ch = data;
 382         struct ad1816_info *ad1816 = ch->parent;
 383
 384         RANGE(speed, 4000, 55200);
 385         ad1816_lock(ad1816);
 386         ad1816_write(ad1816, (ch->dir == PCMDIR_PLAY)? 2 : 3, speed);
 387         ad1816_unlock(ad1816);
 388         return speed;
 389 }
 390
 391 static int
 392 ad1816chan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
 393 {
 394         struct ad1816_chinfo *ch = data;
 395
 396         ch->blksz = blocksize;
 397         return ch->blksz;
 398 }
 399
 400 static int
 401 ad1816chan_trigger(kobj_t obj, void *data, int go)
 402 {
 403         struct ad1816_chinfo *ch = data;
 404         struct ad1816_info *ad1816 = ch->parent;
 405         int wr, reg;
 406
 407         if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
 408                 return 0;
 409
 410         sndbuf_isadma(ch->buffer, go);
 411         wr = (ch->dir == PCMDIR_PLAY);
 412         reg = wr? AD1816_PLAY : AD1816_CAPT;
 413         ad1816_lock(ad1816);
 414         switch (go) {
 415         case PCMTRIG_START:
 416                 /* start only if not already running */
 417                 if (!(io_rd(ad1816, reg) & AD1816_ENABLE)) {
 418                         int cnt = ((ch->blksz) >> 2) - 1;
 419                         ad1816_write(ad1816, wr? 8 : 10, cnt); /* count */
 420                         ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */
 421                         ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) |
 422                                      (wr? 0x8000 : 0x4000)); /* enable int */
 423                         /* enable playback */
 424                         io_wr(ad1816, reg, io_rd(ad1816, reg) | AD1816_ENABLE);
 425                         if (!(io_rd(ad1816, reg) & AD1816_ENABLE))
 426                                 kprintf("ad1816: failed to start %s DMA!\n",
 427                                        wr? "play" : "rec");
 428                 }
 429                 break;
 430
 431         case PCMTRIG_STOP:
 432         case PCMTRIG_ABORT:             /* XXX check this... */
 433                 /* we don't test here if it is running... */
 434                 if (wr) {
 435                         ad1816_write(ad1816, 1, ad1816_read(ad1816, 1) &
 436                                      ~(wr? 0x8000 : 0x4000));
 437                         /* disable int */
 438                         io_wr(ad1816, reg, io_rd(ad1816, reg) & ~AD1816_ENABLE);
 439                         /* disable playback */
 440                         if (io_rd(ad1816, reg) & AD1816_ENABLE)
 441                                 kprintf("ad1816: failed to stop %s DMA!\n",
 442                                        wr? "play" : "rec");
 443                         ad1816_write(ad1816, wr? 8 : 10, 0); /* reset base cnt */
 444                         ad1816_write(ad1816, wr? 9 : 11, 0); /* reset cur cnt */
 445                 }
 446                 break;
 447         }
 448         ad1816_unlock(ad1816);
 449         return 0;
 450 }
 451
 452 static int
 453 ad1816chan_getptr(kobj_t obj, void *data)
 454 {
 455         struct ad1816_chinfo *ch = data;
 456         return sndbuf_isadmaptr(ch->buffer);
 457 }
 458
 459 static struct pcmchan_caps *
 460 ad1816chan_getcaps(kobj_t obj, void *data)
 461 {
 462         return &ad1816_caps;
 463 }
 464
 465 static kobj_method_t ad1816chan_methods[] = {
 466         KOBJMETHOD(channel_init,                ad1816chan_init),
 467         KOBJMETHOD(channel_setdir,              ad1816chan_setdir),
 468         KOBJMETHOD(channel_setformat,           ad1816chan_setformat),
 469         KOBJMETHOD(channel_setspeed,            ad1816chan_setspeed),
 470         KOBJMETHOD(channel_setblocksize,        ad1816chan_setblocksize),
 471         KOBJMETHOD(channel_trigger,             ad1816chan_trigger),
 472         KOBJMETHOD(channel_getptr,              ad1816chan_getptr),
 473         KOBJMETHOD(channel_getcaps,             ad1816chan_getcaps),
 474         { 0, 0 }
 475 };
 476 CHANNEL_DECLARE(ad1816chan);
 477
 478 /* -------------------------------------------------------------------- */
 479
 480 static void
 481 ad1816_release_resources(struct ad1816_info *ad1816, device_t dev)
 482 {
 483         if (ad1816->irq) {
 484                 if (ad1816->ih)
 485                         bus_teardown_intr(dev, ad1816->irq, ad1816->ih);
 486                 bus_release_resource(dev, SYS_RES_IRQ, ad1816->irq_rid, ad1816->irq);
 487                 ad1816->irq = 0;
 488         }
 489         if (ad1816->drq1) {
 490                 isa_dma_release(rman_get_start(ad1816->drq1));
 491                 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq1_rid, ad1816->drq1);
 492                 ad1816->drq1 = 0;
 493         }
 494         if (ad1816->drq2) {
 495                 isa_dma_release(rman_get_start(ad1816->drq2));
 496                 bus_release_resource(dev, SYS_RES_DRQ, ad1816->drq2_rid, ad1816->drq2);
 497                 ad1816->drq2 = 0;
 498         }
 499         if (ad1816->io_base) {
 500                 bus_release_resource(dev, SYS_RES_IOPORT, ad1816->io_rid, ad1816->io_base);
 501                 ad1816->io_base = 0;
 502         }
 503         if (ad1816->parent_dmat) {
 504                 bus_dma_tag_destroy(ad1816->parent_dmat);
 505                 ad1816->parent_dmat = 0;
 506         }
 507         if (ad1816->lock)
 508                 snd_mtxfree(ad1816->lock);
 509
 510         kfree(ad1816, M_DEVBUF);
 511 }
 512
 513 static int
 514 ad1816_alloc_resources(struct ad1816_info *ad1816, device_t dev)
 515 {
 516         int ok = 1, pdma, rdma;
 517
 518         if (!ad1816->io_base)
 519                 ad1816->io_base = bus_alloc_resource(dev, SYS_RES_IOPORT, &ad1816->io_rid,
 520                                                   0, ~0, 1, RF_ACTIVE);
 521         if (!ad1816->irq)
 522                 ad1816->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &ad1816->irq_rid,
 523                                               0, ~0, 1, RF_ACTIVE);
 524         if (!ad1816->drq1)
 525                 ad1816->drq1 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq1_rid,
 526                                                0, ~0, 1, RF_ACTIVE);
 527         if (!ad1816->drq2)
 528                 ad1816->drq2 = bus_alloc_resource(dev, SYS_RES_DRQ, &ad1816->drq2_rid,
 529                                                0, ~0, 1, RF_ACTIVE);
 530
 531         if (!ad1816->io_base || !ad1816->drq1 || !ad1816->irq) ok = 0;
 532
 533         if (ok) {
 534                 pdma = rman_get_start(ad1816->drq1);
 535                 isa_dma_acquire(pdma);
 536                 isa_dmainit(pdma, ad1816->bufsize);
 537                 if (ad1816->drq2) {
 538                         rdma = rman_get_start(ad1816->drq2);
 539                         isa_dma_acquire(rdma);
 540                         isa_dmainit(rdma, ad1816->bufsize);
 541                 } else
 542                         rdma = pdma;
 543                 if (pdma == rdma)
 544                         pcm_setflags(dev, pcm_getflags(dev) | SD_F_SIMPLEX);
 545         }
 546
 547         return ok;
 548 }
 549
 550 static int
 551 ad1816_init(struct ad1816_info *ad1816, device_t dev)
 552 {
 553         ad1816_write(ad1816, 1, 0x2);   /* disable interrupts */
 554         ad1816_write(ad1816, 32, 0x90F0);       /* SoundSys Mode, split fmt */
 555
 556         ad1816_write(ad1816, 5, 0x8080);        /* FM volume mute */
 557         ad1816_write(ad1816, 6, 0x8080);        /* I2S1 volume mute */
 558         ad1816_write(ad1816, 7, 0x8080);        /* I2S0 volume mute */
 559         ad1816_write(ad1816, 17, 0x8888);       /* VID Volume mute */
 560         ad1816_write(ad1816, 20, 0x5050);       /* recsrc mic, agc off */
 561         /* adc gain is set to 0 */
 562
 563         return 0;
 564 }
 565
 566 static int
 567 ad1816_probe(device_t dev)
 568 {
 569         char *s = NULL;
 570         u_int32_t logical_id = isa_get_logicalid(dev);
 571
 572         switch (logical_id) {
 573         case 0x80719304: /* ADS7180 */
 574                 s = "AD1816";
 575                 break;
 576         }
 577
 578         if (s) {
 579                 device_set_desc(dev, s);
 580                 return 0;
 581         }
 582         return ENXIO;
 583 }
 584
 585 static int
 586 ad1816_attach(device_t dev)
 587 {
 588         struct ad1816_info *ad1816;
 589         char status[SND_STATUSLEN], status2[SND_STATUSLEN];
 590
 591         ad1816 = (struct ad1816_info *)kmalloc(sizeof *ad1816, M_DEVBUF, M_NOWAIT | M_ZERO);
 592         if (!ad1816) return ENXIO;
 593
 594         ad1816->lock = snd_mtxcreate(device_get_nameunit(dev), "sound softc");
 595         ad1816->io_rid = 2;
 596         ad1816->irq_rid = 0;
 597         ad1816->drq1_rid = 0;
 598         ad1816->drq2_rid = 1;
 599         ad1816->bufsize = pcm_getbuffersize(dev, 4096, DSP_BUFFSIZE, 65536);
 600
 601         if (!ad1816_alloc_resources(ad1816, dev)) goto no;
 602         ad1816_init(ad1816, dev);
 603         if (mixer_init(dev, &ad1816mixer_class, ad1816)) goto no;
 604
 605         snd_setup_intr(dev, ad1816->irq, INTR_MPSAFE, ad1816_intr, ad1816,
 606                         &ad1816->ih, NULL);
 607         if (bus_dma_tag_create(/*parent*/NULL, /*alignment*/2, /*boundary*/0,
 608                         /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
 609                         /*highaddr*/BUS_SPACE_MAXADDR,
 610                         /*filter*/NULL, /*filterarg*/NULL,
 611                         /*maxsize*/ad1816->bufsize, /*nsegments*/1,
 612                         /*maxsegz*/0x3ffff,
 613                         /*flags*/0, &ad1816->parent_dmat) != 0) {
 614                 device_printf(dev, "unable to create dma tag\n");
 615                 goto no;
 616         }
 617         if (ad1816->drq2)
 618                 ksnprintf(status2, SND_STATUSLEN, ":%ld", rman_get_start(ad1816->drq2));
 619         else
 620                 status2[0] = '\0';
 621
 622         ksnprintf(status, SND_STATUSLEN, "at io 0x%lx irq %ld drq %ld%s bufsz %u",
 623                 rman_get_start(ad1816->io_base),
 624                 rman_get_start(ad1816->irq),
 625                 rman_get_start(ad1816->drq1),
 626                 status2,
 627                 ad1816->bufsize);
 628
 629         if (pcm_register(dev, ad1816, 1, 1)) goto no;
 630         pcm_addchan(dev, PCMDIR_REC, &ad1816chan_class, ad1816);
 631         pcm_addchan(dev, PCMDIR_PLAY, &ad1816chan_class, ad1816);
 632         pcm_setstatus(dev, status);
 633
 634         return 0;
 635 no:
 636         ad1816_release_resources(ad1816, dev);
 637
 638         return ENXIO;
 639
 640 }
 641
 642 static int
 643 ad1816_detach(device_t dev)
 644 {
 645         int r;
 646         struct ad1816_info *ad1816;
 647
 648         r = pcm_unregister(dev);
 649         if (r)
 650                 return r;
 651
 652         ad1816 = pcm_getdevinfo(dev);
 653         ad1816_release_resources(ad1816, dev);
 654         return 0;
 655 }
 656
 657 static device_method_t ad1816_methods[] = {
 658         /* Device interface */
 659         DEVMETHOD(device_probe,         ad1816_probe),
 660         DEVMETHOD(device_attach,        ad1816_attach),
 661         DEVMETHOD(device_detach,        ad1816_detach),
 662
 663         { 0, 0 }
 664 };
 665
 666 static driver_t ad1816_driver = {
 667         "pcm",
 668         ad1816_methods,
 669         PCM_SOFTC_SIZE,
 670 };
 671
 672 DRIVER_MODULE(snd_ad1816, isa, ad1816_driver, pcm_devclass, 0, 0);
 673 MODULE_DEPEND(snd_ad1816, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
 674 MODULE_VERSION(snd_ad1816, 1);
 675
 676