sys/dev/sound/pci/neomagic.c

   1 /*
   2  * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
   3  * All rights reserved.
   4  *
   5  * Derived from the public domain Linux driver
   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, WHETHERIN 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 THEPOSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD: src/sys/dev/sound/pci/neomagic.c,v 1.7.2.11 2002/04/22 15:49:32 cg Exp $
  29  * $DragonFly: src/sys/dev/sound/pci/neomagic.c,v 1.5 2006/09/05 00:55:43 dillon Exp $
  30  */
  31
  32 #include <dev/sound/pcm/sound.h>
  33 #include <dev/sound/pcm/ac97.h>
  34 #include <dev/sound/pci/neomagic.h>
  35 #include <dev/sound/pci/neomagic-coeff.h>
  36
  37 #include <bus/pci/pcireg.h>
  38 #include <bus/pci/pcivar.h>
  39
  40 SND_DECLARE_FILE("$DragonFly: src/sys/dev/sound/pci/neomagic.c,v 1.5 2006/09/05 00:55:43 dillon Exp $");
  41
  42 /* -------------------------------------------------------------------- */
  43
  44 #define NM_BUFFSIZE     16384
  45
  46 #define NM256AV_PCI_ID  0x800510c8
  47 #define NM256ZX_PCI_ID  0x800610c8
  48
  49 struct sc_info;
  50
  51 /* channel registers */
  52 struct sc_chinfo {
  53         int active, spd, dir, fmt;
  54         u_int32_t blksize, wmark;
  55         struct snd_dbuf *buffer;
  56         struct pcm_channel *channel;
  57         struct sc_info *parent;
  58 };
  59
  60 /* device private data */
  61 struct sc_info {
  62         device_t        dev;
  63         u_int32_t       type;
  64
  65         struct resource *reg, *irq, *buf;
  66         int             regid, irqid, bufid;
  67         void            *ih;
  68
  69         u_int32_t       ac97_base, ac97_status, ac97_busy;
  70         u_int32_t       buftop, pbuf, rbuf, cbuf, acbuf;
  71         u_int32_t       playint, recint, misc1int, misc2int;
  72         u_int32_t       irsz, badintr;
  73
  74         struct sc_chinfo pch, rch;
  75 };
  76
  77 /* -------------------------------------------------------------------- */
  78
  79 /*
  80  * prototypes
  81  */
  82
  83 /* stuff */
  84 static int       nm_loadcoeff(struct sc_info *sc, int dir, int num);
  85 static int       nm_setch(struct sc_chinfo *ch);
  86 static int       nm_init(struct sc_info *);
  87 static void      nm_intr(void *);
  88
  89 /* talk to the card */
  90 static u_int32_t nm_rd(struct sc_info *, int, int);
  91 static void      nm_wr(struct sc_info *, int, u_int32_t, int);
  92 static u_int32_t nm_rdbuf(struct sc_info *, int, int);
  93 static void      nm_wrbuf(struct sc_info *, int, u_int32_t, int);
  94
  95 static u_int32_t badcards[] = {
  96         0x0007103c,
  97         0x008f1028,
  98         0x00dd1014,
  99         0x8005110a,
 100 };
 101 #define NUM_BADCARDS (sizeof(badcards) / sizeof(u_int32_t))
 102
 103 /* The actual rates supported by the card. */
 104 static int samplerates[9] = {
 105         8000,
 106         11025,
 107         16000,
 108         22050,
 109         24000,
 110         32000,
 111         44100,
 112         48000,
 113         99999999
 114 };
 115
 116 /* -------------------------------------------------------------------- */
 117
 118 static u_int32_t nm_fmt[] = {
 119         AFMT_U8,
 120         AFMT_STEREO | AFMT_U8,
 121         AFMT_S16_LE,
 122         AFMT_STEREO | AFMT_S16_LE,
 123         0
 124 };
 125 static struct pcmchan_caps nm_caps = {4000, 48000, nm_fmt, 0};
 126
 127 /* -------------------------------------------------------------------- */
 128
 129 /* Hardware */
 130 static u_int32_t
 131 nm_rd(struct sc_info *sc, int regno, int size)
 132 {
 133         bus_space_tag_t st = rman_get_bustag(sc->reg);
 134         bus_space_handle_t sh = rman_get_bushandle(sc->reg);
 135
 136         switch (size) {
 137         case 1:
 138                 return bus_space_read_1(st, sh, regno);
 139         case 2:
 140                 return bus_space_read_2(st, sh, regno);
 141         case 4:
 142                 return bus_space_read_4(st, sh, regno);
 143         default:
 144                 return 0xffffffff;
 145         }
 146 }
 147
 148 static void
 149 nm_wr(struct sc_info *sc, int regno, u_int32_t data, int size)
 150 {
 151         bus_space_tag_t st = rman_get_bustag(sc->reg);
 152         bus_space_handle_t sh = rman_get_bushandle(sc->reg);
 153
 154         switch (size) {
 155         case 1:
 156                 bus_space_write_1(st, sh, regno, data);
 157                 break;
 158         case 2:
 159                 bus_space_write_2(st, sh, regno, data);
 160                 break;
 161         case 4:
 162                 bus_space_write_4(st, sh, regno, data);
 163                 break;
 164         }
 165 }
 166
 167 static u_int32_t
 168 nm_rdbuf(struct sc_info *sc, int regno, int size)
 169 {
 170         bus_space_tag_t st = rman_get_bustag(sc->buf);
 171         bus_space_handle_t sh = rman_get_bushandle(sc->buf);
 172
 173         switch (size) {
 174         case 1:
 175                 return bus_space_read_1(st, sh, regno);
 176         case 2:
 177                 return bus_space_read_2(st, sh, regno);
 178         case 4:
 179                 return bus_space_read_4(st, sh, regno);
 180         default:
 181                 return 0xffffffff;
 182         }
 183 }
 184
 185 static void
 186 nm_wrbuf(struct sc_info *sc, int regno, u_int32_t data, int size)
 187 {
 188         bus_space_tag_t st = rman_get_bustag(sc->buf);
 189         bus_space_handle_t sh = rman_get_bushandle(sc->buf);
 190
 191         switch (size) {
 192         case 1:
 193                 bus_space_write_1(st, sh, regno, data);
 194                 break;
 195         case 2:
 196                 bus_space_write_2(st, sh, regno, data);
 197                 break;
 198         case 4:
 199                 bus_space_write_4(st, sh, regno, data);
 200                 break;
 201         }
 202 }
 203
 204 /* -------------------------------------------------------------------- */
 205 /* ac97 codec */
 206 static int
 207 nm_waitcd(struct sc_info *sc)
 208 {
 209         int cnt = 10;
 210         int fail = 1;
 211
 212         while (cnt-- > 0) {
 213                 if (nm_rd(sc, sc->ac97_status, 2) & sc->ac97_busy) {
 214                         DELAY(100);
 215                 } else {
 216                         fail = 0;
 217                         break;
 218                 }
 219         }
 220         return (fail);
 221 }
 222
 223 static u_int32_t
 224 nm_initcd(kobj_t obj, void *devinfo)
 225 {
 226         struct sc_info *sc = (struct sc_info *)devinfo;
 227
 228         nm_wr(sc, 0x6c0, 0x01, 1);
 229         nm_wr(sc, 0x6cc, 0x87, 1);
 230         nm_wr(sc, 0x6cc, 0x80, 1);
 231         nm_wr(sc, 0x6cc, 0x00, 1);
 232         return 1;
 233 }
 234
 235 static int
 236 nm_rdcd(kobj_t obj, void *devinfo, int regno)
 237 {
 238         struct sc_info *sc = (struct sc_info *)devinfo;
 239         u_int32_t x;
 240
 241         if (!nm_waitcd(sc)) {
 242                 x = nm_rd(sc, sc->ac97_base + regno, 2);
 243                 DELAY(1000);
 244                 return x;
 245         } else {
 246                 device_printf(sc->dev, "ac97 codec not ready\n");
 247                 return -1;
 248         }
 249 }
 250
 251 static int
 252 nm_wrcd(kobj_t obj, void *devinfo, int regno, u_int32_t data)
 253 {
 254         struct sc_info *sc = (struct sc_info *)devinfo;
 255         int cnt = 3;
 256
 257         if (!nm_waitcd(sc)) {
 258                 while (cnt-- > 0) {
 259                         nm_wr(sc, sc->ac97_base + regno, data, 2);
 260                         if (!nm_waitcd(sc)) {
 261                                 DELAY(1000);
 262                                 return 0;
 263                         }
 264                 }
 265         }
 266         device_printf(sc->dev, "ac97 codec not ready\n");
 267         return -1;
 268 }
 269
 270 static kobj_method_t nm_ac97_methods[] = {
 271         KOBJMETHOD(ac97_init,           nm_initcd),
 272         KOBJMETHOD(ac97_read,           nm_rdcd),
 273         KOBJMETHOD(ac97_write,          nm_wrcd),
 274         { 0, 0 }
 275 };
 276 AC97_DECLARE(nm_ac97);
 277
 278 /* -------------------------------------------------------------------- */
 279
 280 static void
 281 nm_ackint(struct sc_info *sc, u_int32_t num)
 282 {
 283         if (sc->type == NM256AV_PCI_ID) {
 284                 nm_wr(sc, NM_INT_REG, num << 1, 2);
 285         } else if (sc->type == NM256ZX_PCI_ID) {
 286                 nm_wr(sc, NM_INT_REG, num, 4);
 287         }
 288 }
 289
 290 static int
 291 nm_loadcoeff(struct sc_info *sc, int dir, int num)
 292 {
 293         int ofs, sz, i;
 294         u_int32_t addr;
 295
 296         addr = (dir == PCMDIR_PLAY)? 0x01c : 0x21c;
 297         if (dir == PCMDIR_REC)
 298                 num += 8;
 299         sz = coefficientSizes[num];
 300         ofs = 0;
 301         while (num-- > 0)
 302                 ofs+= coefficientSizes[num];
 303         for (i = 0; i < sz; i++)
 304                 nm_wrbuf(sc, sc->cbuf + i, coefficients[ofs + i], 1);
 305         nm_wr(sc, addr, sc->cbuf, 4);
 306         if (dir == PCMDIR_PLAY)
 307                 sz--;
 308         nm_wr(sc, addr + 4, sc->cbuf + sz, 4);
 309         return 0;
 310 }
 311
 312 static int
 313 nm_setch(struct sc_chinfo *ch)
 314 {
 315         struct sc_info *sc = ch->parent;
 316         u_int32_t base;
 317         u_int8_t x;
 318
 319         for (x = 0; x < 8; x++)
 320                 if (ch->spd < (samplerates[x] + samplerates[x + 1]) / 2)
 321                         break;
 322
 323         if (x == 8) return 1;
 324
 325         ch->spd = samplerates[x];
 326         nm_loadcoeff(sc, ch->dir, x);
 327
 328         x <<= 4;
 329         x &= NM_RATE_MASK;
 330         if (ch->fmt & AFMT_16BIT) x |= NM_RATE_BITS_16;
 331         if (ch->fmt & AFMT_STEREO) x |= NM_RATE_STEREO;
 332
 333         base = (ch->dir == PCMDIR_PLAY)? NM_PLAYBACK_REG_OFFSET : NM_RECORD_REG_OFFSET;
 334         nm_wr(sc, base + NM_RATE_REG_OFFSET, x, 1);
 335         return 0;
 336 }
 337
 338 /* channel interface */
 339 static void *
 340 nmchan_init(kobj_t obj, void *devinfo, struct snd_dbuf *b, struct pcm_channel *c, int dir)
 341 {
 342         struct sc_info *sc = devinfo;
 343         struct sc_chinfo *ch;
 344         u_int32_t chnbuf;
 345
 346         chnbuf = (dir == PCMDIR_PLAY)? sc->pbuf : sc->rbuf;
 347         ch = (dir == PCMDIR_PLAY)? &sc->pch : &sc->rch;
 348         ch->active = 0;
 349         ch->blksize = 0;
 350         ch->wmark = 0;
 351         ch->buffer = b;
 352         sndbuf_setup(ch->buffer, (u_int8_t *)rman_get_virtual(sc->buf) + chnbuf, NM_BUFFSIZE);
 353         if (bootverbose)
 354                 device_printf(sc->dev, "%s buf %p\n", (dir == PCMDIR_PLAY)?
 355                               "play" : "rec", sndbuf_getbuf(ch->buffer));
 356         ch->parent = sc;
 357         ch->channel = c;
 358         ch->dir = dir;
 359         return ch;
 360 }
 361
 362 static int
 363 nmchan_free(kobj_t obj, void *data)
 364 {
 365         return 0;
 366 }
 367
 368 static int
 369 nmchan_setformat(kobj_t obj, void *data, u_int32_t format)
 370 {
 371         struct sc_chinfo *ch = data;
 372
 373         ch->fmt = format;
 374         return nm_setch(ch);
 375 }
 376
 377 static int
 378 nmchan_setspeed(kobj_t obj, void *data, u_int32_t speed)
 379 {
 380         struct sc_chinfo *ch = data;
 381
 382         ch->spd = speed;
 383         return nm_setch(ch)? 0 : ch->spd;
 384 }
 385
 386 static int
 387 nmchan_setblocksize(kobj_t obj, void *data, u_int32_t blocksize)
 388 {
 389         struct sc_chinfo *ch = data;
 390
 391         ch->blksize = blocksize;
 392
 393         return blocksize;
 394 }
 395
 396 static int
 397 nmchan_trigger(kobj_t obj, void *data, int go)
 398 {
 399         struct sc_chinfo *ch = data;
 400         struct sc_info *sc = ch->parent;
 401         int ssz;
 402
 403         if (go == PCMTRIG_EMLDMAWR || go == PCMTRIG_EMLDMARD)
 404                 return 0;
 405
 406         ssz = (ch->fmt & AFMT_16BIT)? 2 : 1;
 407         if (ch->fmt & AFMT_STEREO)
 408                 ssz <<= 1;
 409
 410         if (ch->dir == PCMDIR_PLAY) {
 411                 if (go == PCMTRIG_START) {
 412                         ch->active = 1;
 413                         ch->wmark = ch->blksize;
 414                         nm_wr(sc, NM_PBUFFER_START, sc->pbuf, 4);
 415                         nm_wr(sc, NM_PBUFFER_END, sc->pbuf + NM_BUFFSIZE - ssz, 4);
 416                         nm_wr(sc, NM_PBUFFER_CURRP, sc->pbuf, 4);
 417                         nm_wr(sc, NM_PBUFFER_WMARK, sc->pbuf + ch->wmark, 4);
 418                         nm_wr(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN |
 419                                 NM_PLAYBACK_ENABLE_FLAG, 1);
 420                         nm_wr(sc, NM_AUDIO_MUTE_REG, 0, 2);
 421                 } else {
 422                         ch->active = 0;
 423                         nm_wr(sc, NM_PLAYBACK_ENABLE_REG, 0, 1);
 424                         nm_wr(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH, 2);
 425                 }
 426         } else {
 427                 if (go == PCMTRIG_START) {
 428                         ch->active = 1;
 429                         ch->wmark = ch->blksize;
 430                         nm_wr(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN |
 431                                 NM_RECORD_ENABLE_FLAG, 1);
 432                         nm_wr(sc, NM_RBUFFER_START, sc->rbuf, 4);
 433                         nm_wr(sc, NM_RBUFFER_END, sc->rbuf + NM_BUFFSIZE, 4);
 434                         nm_wr(sc, NM_RBUFFER_CURRP, sc->rbuf, 4);
 435                         nm_wr(sc, NM_RBUFFER_WMARK, sc->rbuf + ch->wmark, 4);
 436                 } else {
 437                         ch->active = 0;
 438                         nm_wr(sc, NM_RECORD_ENABLE_REG, 0, 1);
 439                 }
 440         }
 441         return 0;
 442 }
 443
 444 static int
 445 nmchan_getptr(kobj_t obj, void *data)
 446 {
 447         struct sc_chinfo *ch = data;
 448         struct sc_info *sc = ch->parent;
 449
 450         if (ch->dir == PCMDIR_PLAY)
 451                 return nm_rd(sc, NM_PBUFFER_CURRP, 4) - sc->pbuf;
 452         else
 453                 return nm_rd(sc, NM_RBUFFER_CURRP, 4) - sc->rbuf;
 454 }
 455
 456 static struct pcmchan_caps *
 457 nmchan_getcaps(kobj_t obj, void *data)
 458 {
 459         return &nm_caps;
 460 }
 461
 462 static kobj_method_t nmchan_methods[] = {
 463         KOBJMETHOD(channel_init,                nmchan_init),
 464         KOBJMETHOD(channel_free,                nmchan_free),
 465         KOBJMETHOD(channel_setformat,           nmchan_setformat),
 466         KOBJMETHOD(channel_setspeed,            nmchan_setspeed),
 467         KOBJMETHOD(channel_setblocksize,        nmchan_setblocksize),
 468         KOBJMETHOD(channel_trigger,             nmchan_trigger),
 469         KOBJMETHOD(channel_getptr,              nmchan_getptr),
 470         KOBJMETHOD(channel_getcaps,             nmchan_getcaps),
 471         { 0, 0 }
 472 };
 473 CHANNEL_DECLARE(nmchan);
 474
 475 /* The interrupt handler */
 476 static void
 477 nm_intr(void *p)
 478 {
 479         struct sc_info *sc = (struct sc_info *)p;
 480         int status, x;
 481
 482         status = nm_rd(sc, NM_INT_REG, sc->irsz);
 483         if (status == 0)
 484                 return;
 485
 486         if (status & sc->playint) {
 487                 status &= ~sc->playint;
 488                 sc->pch.wmark += sc->pch.blksize;
 489                 sc->pch.wmark %= NM_BUFFSIZE;
 490                 nm_wr(sc, NM_PBUFFER_WMARK, sc->pbuf + sc->pch.wmark, 4);
 491
 492                 nm_ackint(sc, sc->playint);
 493                 chn_intr(sc->pch.channel);
 494         }
 495         if (status & sc->recint) {
 496                 status &= ~sc->recint;
 497                 sc->rch.wmark += sc->rch.blksize;
 498                 sc->rch.wmark %= NM_BUFFSIZE;
 499                 nm_wr(sc, NM_RBUFFER_WMARK, sc->rbuf + sc->rch.wmark, 4);
 500
 501                 nm_ackint(sc, sc->recint);
 502                 chn_intr(sc->rch.channel);
 503         }
 504         if (status & sc->misc1int) {
 505                 status &= ~sc->misc1int;
 506                 nm_ackint(sc, sc->misc1int);
 507                 x = nm_rd(sc, 0x400, 1);
 508                 nm_wr(sc, 0x400, x | 2, 1);
 509                 device_printf(sc->dev, "misc int 1\n");
 510         }
 511         if (status & sc->misc2int) {
 512                 status &= ~sc->misc2int;
 513                 nm_ackint(sc, sc->misc2int);
 514                 x = nm_rd(sc, 0x400, 1);
 515                 nm_wr(sc, 0x400, x & ~2, 1);
 516                 device_printf(sc->dev, "misc int 2\n");
 517         }
 518         if (status) {
 519                 nm_ackint(sc, status);
 520                 device_printf(sc->dev, "unknown int\n");
 521         }
 522 }
 523
 524 /* -------------------------------------------------------------------- */
 525
 526 /*
 527  * Probe and attach the card
 528  */
 529
 530 static int
 531 nm_init(struct sc_info *sc)
 532 {
 533         u_int32_t ofs, i;
 534
 535         if (sc->type == NM256AV_PCI_ID) {
 536                 sc->ac97_base = NM_MIXER_OFFSET;
 537                 sc->ac97_status = NM_MIXER_STATUS_OFFSET;
 538                 sc->ac97_busy = NM_MIXER_READY_MASK;
 539
 540                 sc->buftop = 2560 * 1024;
 541
 542                 sc->irsz = 2;
 543                 sc->playint = NM_PLAYBACK_INT;
 544                 sc->recint = NM_RECORD_INT;
 545                 sc->misc1int = NM_MISC_INT_1;
 546                 sc->misc2int = NM_MISC_INT_2;
 547         } else if (sc->type == NM256ZX_PCI_ID) {
 548                 sc->ac97_base = NM_MIXER_OFFSET;
 549                 sc->ac97_status = NM2_MIXER_STATUS_OFFSET;
 550                 sc->ac97_busy = NM2_MIXER_READY_MASK;
 551
 552                 sc->buftop = (nm_rd(sc, 0xa0b, 2)? 6144 : 4096) * 1024;
 553
 554                 sc->irsz = 4;
 555                 sc->playint = NM2_PLAYBACK_INT;
 556                 sc->recint = NM2_RECORD_INT;
 557                 sc->misc1int = NM2_MISC_INT_1;
 558                 sc->misc2int = NM2_MISC_INT_2;
 559         } else return -1;
 560         sc->badintr = 0;
 561         ofs = sc->buftop - 0x0400;
 562         sc->buftop -= 0x1400;
 563
 564         if (bootverbose)
 565                 device_printf(sc->dev, "buftop is 0x%08x\n", sc->buftop);
 566         if ((nm_rdbuf(sc, ofs, 4) & NM_SIG_MASK) == NM_SIGNATURE) {
 567                 i = nm_rdbuf(sc, ofs + 4, 4);
 568                 if (i != 0 && i != 0xffffffff) {
 569                         if (bootverbose)
 570                                 device_printf(sc->dev, "buftop is changed to 0x%08x\n", i);
 571                         sc->buftop = i;
 572                 }
 573         }
 574
 575         sc->cbuf = sc->buftop - NM_MAX_COEFFICIENT;
 576         sc->rbuf = sc->cbuf - NM_BUFFSIZE;
 577         sc->pbuf = sc->rbuf - NM_BUFFSIZE;
 578         sc->acbuf = sc->pbuf - (NM_TOTAL_COEFF_COUNT * 4);
 579
 580         nm_wr(sc, 0, 0x11, 1);
 581         nm_wr(sc, NM_RECORD_ENABLE_REG, 0, 1);
 582         nm_wr(sc, 0x214, 0, 2);
 583
 584         return 0;
 585 }
 586
 587 static int
 588 nm_pci_probe(device_t dev)
 589 {
 590         struct sc_info *sc = NULL;
 591         char *s = NULL;
 592         u_int32_t subdev, i, data;
 593
 594         subdev = (pci_get_subdevice(dev) << 16) | pci_get_subvendor(dev);
 595         switch (pci_get_devid(dev)) {
 596         case NM256AV_PCI_ID:
 597                 i = 0;
 598                 while ((i < NUM_BADCARDS) && (badcards[i] != subdev))
 599                         i++;
 600
 601                 /* Try to catch other non-ac97 cards */
 602
 603                 if (i == NUM_BADCARDS) {
 604                         if (!(sc = kmalloc(sizeof(*sc), M_DEVBUF, M_NOWAIT | M_ZERO))) {
 605                                 device_printf(dev, "cannot allocate softc\n");
 606                                 return ENXIO;
 607                         }
 608
 609                         data = pci_read_config(dev, PCIR_COMMAND, 2);
 610                         pci_write_config(dev, PCIR_COMMAND, data |
 611                                          PCIM_CMD_PORTEN | PCIM_CMD_MEMEN |
 612                                          PCIM_CMD_BUSMASTEREN, 2);
 613
 614                         sc->regid = PCIR_MAPS + 4;
 615                         sc->reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
 616                                                      &sc->regid, 0, ~0, 1,
 617                                                      RF_ACTIVE);
 618
 619                         if (!sc->reg) {
 620                                 device_printf(dev, "unable to map register space\n");
 621                                 pci_write_config(dev, PCIR_COMMAND, data, 2);
 622                                 kfree(sc, M_DEVBUF);
 623                                 return ENXIO;
 624                         }
 625
 626                         /*
 627                          * My Panasonic CF-M2EV needs resetting device
 628                          * before checking mixer is present or not.
 629                          * t.ichinoseki@nifty.com.
 630                          */
 631                         nm_wr(sc, 0, 0x11, 1); /* reset device */
 632                         if ((nm_rd(sc, NM_MIXER_PRESENCE, 2) &
 633                                 NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) {
 634                                 i = 0;  /* non-ac97 card, but not listed */
 635                                 DEB(device_printf(dev, "subdev = 0x%x - badcard?\n",
 636                                     subdev));
 637                         }
 638                         pci_write_config(dev, PCIR_COMMAND, data, 2);
 639                         bus_release_resource(dev, SYS_RES_MEMORY, sc->regid,
 640                                              sc->reg);
 641                         kfree(sc, M_DEVBUF);
 642                 }
 643
 644                 if (i == NUM_BADCARDS)
 645                         s = "NeoMagic 256AV";
 646                 DEB(else)
 647                         DEB(device_printf(dev, "this is a non-ac97 NM256AV, not attaching\n"));
 648
 649                 break;
 650
 651         case NM256ZX_PCI_ID:
 652                 s = "NeoMagic 256ZX";
 653                 break;
 654         }
 655
 656         if (s) device_set_desc(dev, s);
 657         return s? 0 : ENXIO;
 658 }
 659
 660 static int
 661 nm_pci_attach(device_t dev)
 662 {
 663         u_int32_t       data;
 664         struct sc_info *sc;
 665         struct ac97_info *codec = 0;
 666         char            status[SND_STATUSLEN];
 667
 668         if ((sc = kmalloc(sizeof(*sc), M_DEVBUF, M_NOWAIT | M_ZERO)) == NULL) {
 669                 device_printf(dev, "cannot allocate softc\n");
 670                 return ENXIO;
 671         }
 672
 673         sc->dev = dev;
 674         sc->type = pci_get_devid(dev);
 675
 676         data = pci_read_config(dev, PCIR_COMMAND, 2);
 677         data |= (PCIM_CMD_PORTEN|PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN);
 678         pci_write_config(dev, PCIR_COMMAND, data, 2);
 679         data = pci_read_config(dev, PCIR_COMMAND, 2);
 680
 681         sc->bufid = PCIR_MAPS;
 682         sc->buf = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->bufid,
 683                                      0, ~0, 1, RF_ACTIVE);
 684         sc->regid = PCIR_MAPS + 4;
 685         sc->reg = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->regid,
 686                                      0, ~0, 1, RF_ACTIVE);
 687
 688         if (!sc->buf || !sc->reg) {
 689                 device_printf(dev, "unable to map register space\n");
 690                 goto bad;
 691         }
 692
 693         if (nm_init(sc) == -1) {
 694                 device_printf(dev, "unable to initialize the card\n");
 695                 goto bad;
 696         }
 697
 698         codec = AC97_CREATE(dev, sc, nm_ac97);
 699         if (codec == NULL) goto bad;
 700         if (mixer_init(dev, ac97_getmixerclass(), codec) == -1) goto bad;
 701
 702         sc->irqid = 0;
 703         sc->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->irqid,
 704                                  0, ~0, 1, RF_ACTIVE | RF_SHAREABLE);
 705         if (!sc->irq || snd_setup_intr(dev, sc->irq, 0, nm_intr, sc, &sc->ih, NULL)) {
 706                 device_printf(dev, "unable to map interrupt\n");
 707                 goto bad;
 708         }
 709
 710         snprintf(status, SND_STATUSLEN, "at memory 0x%lx, 0x%lx irq %ld",
 711                  rman_get_start(sc->buf), rman_get_start(sc->reg),
 712                  rman_get_start(sc->irq));
 713
 714         if (pcm_register(dev, sc, 1, 1)) goto bad;
 715         pcm_addchan(dev, PCMDIR_REC, &nmchan_class, sc);
 716         pcm_addchan(dev, PCMDIR_PLAY, &nmchan_class, sc);
 717         pcm_setstatus(dev, status);
 718
 719         return 0;
 720
 721 bad:
 722         if (codec) ac97_destroy(codec);
 723         if (sc->buf) bus_release_resource(dev, SYS_RES_MEMORY, sc->bufid, sc->buf);
 724         if (sc->reg) bus_release_resource(dev, SYS_RES_MEMORY, sc->regid, sc->reg);
 725         if (sc->ih) bus_teardown_intr(dev, sc->irq, sc->ih);
 726         if (sc->irq) bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq);
 727         kfree(sc, M_DEVBUF);
 728         return ENXIO;
 729 }
 730
 731 static int
 732 nm_pci_detach(device_t dev)
 733 {
 734         int r;
 735         struct sc_info *sc;
 736
 737         r = pcm_unregister(dev);
 738         if (r)
 739                 return r;
 740
 741         sc = pcm_getdevinfo(dev);
 742         bus_release_resource(dev, SYS_RES_MEMORY, sc->bufid, sc->buf);
 743         bus_release_resource(dev, SYS_RES_MEMORY, sc->regid, sc->reg);
 744         bus_teardown_intr(dev, sc->irq, sc->ih);
 745         bus_release_resource(dev, SYS_RES_IRQ, sc->irqid, sc->irq);
 746         kfree(sc, M_DEVBUF);
 747
 748         return 0;
 749 }
 750
 751 static int
 752 nm_pci_suspend(device_t dev)
 753 {
 754         struct sc_info *sc;
 755
 756         sc = pcm_getdevinfo(dev);
 757
 758         /* stop playing */
 759         if (sc->pch.active) {
 760                 nm_wr(sc, NM_PLAYBACK_ENABLE_REG, 0, 1);
 761                 nm_wr(sc, NM_AUDIO_MUTE_REG, NM_AUDIO_MUTE_BOTH, 2);
 762         }
 763         /* stop recording */
 764         if (sc->rch.active) {
 765                 nm_wr(sc, NM_RECORD_ENABLE_REG, 0, 1);
 766         }
 767         return 0;
 768 }
 769
 770 static int
 771 nm_pci_resume(device_t dev)
 772 {
 773         struct sc_info *sc;
 774
 775         sc = pcm_getdevinfo(dev);
 776
 777         /*
 778          * Reinit audio device.
 779          * Don't call nm_init(). It would change buftop if X ran or
 780          * is running. This makes playing and recording buffer address
 781          * shift but these buffers of channel layer are not changed.
 782          * As a result of this inconsistency, periodic noise will be
 783          * generated while playing.
 784          */
 785         nm_wr(sc, 0, 0x11, 1);
 786         nm_wr(sc, 0x214, 0, 2);
 787
 788         /* Reinit mixer */
 789         if (mixer_reinit(dev) == -1) {
 790                 device_printf(dev, "unable to reinitialize the mixer\n");
 791                 return ENXIO;
 792         }
 793         /* restart playing */
 794         if (sc->pch.active) {
 795                 nm_wr(sc, NM_PLAYBACK_ENABLE_REG, NM_PLAYBACK_FREERUN |
 796                           NM_PLAYBACK_ENABLE_FLAG, 1);
 797                 nm_wr(sc, NM_AUDIO_MUTE_REG, 0, 2);
 798         }
 799         /* restart recording */
 800         if (sc->rch.active) {
 801                 nm_wr(sc, NM_RECORD_ENABLE_REG, NM_RECORD_FREERUN |
 802                           NM_RECORD_ENABLE_FLAG, 1);
 803         }
 804         return 0;
 805 }
 806
 807 static device_method_t nm_methods[] = {
 808         /* Device interface */
 809         DEVMETHOD(device_probe,         nm_pci_probe),
 810         DEVMETHOD(device_attach,        nm_pci_attach),
 811         DEVMETHOD(device_detach,        nm_pci_detach),
 812         DEVMETHOD(device_suspend,       nm_pci_suspend),
 813         DEVMETHOD(device_resume,        nm_pci_resume),
 814         { 0, 0 }
 815 };
 816
 817 static driver_t nm_driver = {
 818         "pcm",
 819         nm_methods,
 820         PCM_SOFTC_SIZE,
 821 };
 822
 823 DRIVER_MODULE(snd_neomagic, pci, nm_driver, pcm_devclass, 0, 0);
 824 MODULE_DEPEND(snd_neomagic, snd_pcm, PCM_MINVER, PCM_PREFVER, PCM_MAXVER);
 825 MODULE_VERSION(snd_neomagic, 1);