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