git.oblomov.eu Git - linux-2.6/blob - sound/oss/sonicvibes.c

   1 /*****************************************************************************/
   2
   3 /*
   4  *      sonicvibes.c  --  S3 Sonic Vibes audio driver.
   5  *
   6  *      Copyright (C) 1998-2001, 2003  Thomas Sailer (t.sailer@alumni.ethz.ch)
   7  *
   8  *      This program is free software; you can redistribute it and/or modify
   9  *      it under the terms of the GNU General Public License as published by
  10  *      the Free Software Foundation; either version 2 of the License, or
  11  *      (at your option) any later version.
  12  *
  13  *      This program is distributed in the hope that it will be useful,
  14  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *      GNU General Public License for more details.
  17  *
  18  *      You should have received a copy of the GNU General Public License
  19  *      along with this program; if not, write to the Free Software
  20  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * Special thanks to David C. Niemi
  23  *
  24  *
  25  * Module command line parameters:
  26  *   none so far
  27  *
  28  *
  29  *  Supported devices:
  30  *  /dev/dsp    standard /dev/dsp device, (mostly) OSS compatible
  31  *  /dev/mixer  standard /dev/mixer device, (mostly) OSS compatible
  32  *  /dev/midi   simple MIDI UART interface, no ioctl
  33  *
  34  *  The card has both an FM and a Wavetable synth, but I have to figure
  35  *  out first how to drive them...
  36  *
  37  *  Revision history
  38  *    06.05.1998   0.1   Initial release
  39  *    10.05.1998   0.2   Fixed many bugs, esp. ADC rate calculation
  40  *                       First stab at a simple midi interface (no bells&whistles)
  41  *    13.05.1998   0.3   Fix stupid cut&paste error: set_adc_rate was called instead of
  42  *                       set_dac_rate in the FMODE_WRITE case in sv_open
  43  *                       Fix hwptr out of bounds (now mpg123 works)
  44  *    14.05.1998   0.4   Don't allow excessive interrupt rates
  45  *    08.06.1998   0.5   First release using Alan Cox' soundcore instead of miscdevice
  46  *    03.08.1998   0.6   Do not include modversions.h
  47  *                       Now mixer behaviour can basically be selected between
  48  *                       "OSS documented" and "OSS actual" behaviour
  49  *    31.08.1998   0.7   Fix realplayer problems - dac.count issues
  50  *    10.12.1998   0.8   Fix drain_dac trying to wait on not yet initialized DMA
  51  *    16.12.1998   0.9   Fix a few f_file & FMODE_ bugs
  52  *    06.01.1999   0.10  remove the silly SA_INTERRUPT flag.
  53  *                       hopefully killed the egcs section type conflict
  54  *    12.03.1999   0.11  cinfo.blocks should be reset after GETxPTR ioctl.
  55  *                       reported by Johan Maes <joma@telindus.be>
  56  *    22.03.1999   0.12  return EAGAIN instead of EBUSY when O_NONBLOCK
  57  *                       read/write cannot be executed
  58  *    05.04.1999   0.13  added code to sv_read and sv_write which should detect
  59  *                       lockups of the sound chip and revive it. This is basically
  60  *                       an ugly hack, but at least applications using this driver
  61  *                       won't hang forever. I don't know why these lockups happen,
  62  *                       it might well be the motherboard chipset (an early 486 PCI
  63  *                       board with ALI chipset), since every busmastering 100MB
  64  *                       ethernet card I've tried (Realtek 8139 and Macronix tulip clone)
  65  *                       exhibit similar behaviour (they work for a couple of packets
  66  *                       and then lock up and can be revived by ifconfig down/up).
  67  *    07.04.1999   0.14  implemented the following ioctl's: SOUND_PCM_READ_RATE,
  68  *                       SOUND_PCM_READ_CHANNELS, SOUND_PCM_READ_BITS;
  69  *                       Alpha fixes reported by Peter Jones <pjones@redhat.com>
  70  *                       Note: dmaio hack might still be wrong on archs other than i386
  71  *    15.06.1999   0.15  Fix bad allocation bug.
  72  *                       Thanks to Deti Fliegl <fliegl@in.tum.de>
  73  *    28.06.1999   0.16  Add pci_set_master
  74  *    03.08.1999   0.17  adapt to Linus' new __setup/__initcall
  75  *                       added kernel command line options "sonicvibes=reverb" and "sonicvibesdmaio=dmaioaddr"
  76  *    12.08.1999   0.18  module_init/__setup fixes
  77  *    24.08.1999   0.19  get rid of the dmaio kludge, replace with allocate_resource
  78  *    31.08.1999   0.20  add spin_lock_init
  79  *                       use new resource allocation to allocate DDMA IO space
  80  *                       replaced current->state = x with set_current_state(x)
  81  *    03.09.1999   0.21  change read semantics for MIDI to match
  82  *                       OSS more closely; remove possible wakeup race
  83  *    28.10.1999   0.22  More waitqueue races fixed
  84  *    01.12.1999   0.23  New argument to allocate_resource
  85  *    07.12.1999   0.24  More allocate_resource semantics change
  86  *    08.01.2000   0.25  Prevent some ioctl's from returning bad count values on underrun/overrun;
  87  *                       Tim Janik's BSE (Bedevilled Sound Engine) found this
  88  *                       use Martin Mares' pci_assign_resource
  89  *    07.02.2000   0.26  Use pci_alloc_consistent and pci_register_driver
  90  *    21.11.2000   0.27  Initialize dma buffers in poll, otherwise poll may return a bogus mask
  91  *    12.12.2000   0.28  More dma buffer initializations, patch from
  92  *                       Tjeerd Mulder <tjeerd.mulder@fujitsu-siemens.com>
  93  *    31.01.2001   0.29  Register/Unregister gameport
  94  *                       Fix SETTRIGGER non OSS API conformity
  95  *    18.05.2001   0.30  PCI probing and error values cleaned up by Marcus
  96  *                       Meissner <mm@caldera.de>
  97  *    03.01.2003   0.31  open_mode fixes from Georg Acher <acher@in.tum.de>
  98  *
  99  */
 100
 101 /*****************************************************************************/
 102
 103 #include <linux/module.h>
 104 #include <linux/string.h>
 105 #include <linux/ioport.h>
 106 #include <linux/interrupt.h>
 107 #include <linux/wait.h>
 108 #include <linux/mm.h>
 109 #include <linux/delay.h>
 110 #include <linux/sound.h>
 111 #include <linux/slab.h>
 112 #include <linux/soundcard.h>
 113 #include <linux/pci.h>
 114 #include <linux/init.h>
 115 #include <linux/poll.h>
 116 #include <linux/spinlock.h>
 117 #include <linux/smp_lock.h>
 118 #include <linux/gameport.h>
 119
 120 #include <asm/io.h>
 121 #include <asm/uaccess.h>
 122
 123 #include "dm.h"
 124
 125
 126 /* --------------------------------------------------------------------- */
 127
 128 #undef OSS_DOCUMENTED_MIXER_SEMANTICS
 129
 130 /* --------------------------------------------------------------------- */
 131
 132 #ifndef PCI_VENDOR_ID_S3
 133 #define PCI_VENDOR_ID_S3             0x5333
 134 #endif
 135 #ifndef PCI_DEVICE_ID_S3_SONICVIBES
 136 #define PCI_DEVICE_ID_S3_SONICVIBES  0xca00
 137 #endif
 138
 139 #define SV_MAGIC  ((PCI_VENDOR_ID_S3<<16)|PCI_DEVICE_ID_S3_SONICVIBES)
 140
 141 #define SV_EXTENT_SB      0x10
 142 #define SV_EXTENT_ENH     0x10
 143 #define SV_EXTENT_SYNTH   0x4
 144 #define SV_EXTENT_MIDI    0x4
 145 #define SV_EXTENT_GAME    0x8
 146 #define SV_EXTENT_DMA     0x10
 147
 148 /*
 149  * we are not a bridge and thus use a resource for DDMA that is used for bridges but
 150  * left empty for normal devices
 151  */
 152 #define RESOURCE_SB       0
 153 #define RESOURCE_ENH      1
 154 #define RESOURCE_SYNTH    2
 155 #define RESOURCE_MIDI     3
 156 #define RESOURCE_GAME     4
 157 #define RESOURCE_DDMA     7
 158
 159 #define SV_MIDI_DATA      0
 160 #define SV_MIDI_COMMAND   1
 161 #define SV_MIDI_STATUS    1
 162
 163 #define SV_DMA_ADDR0      0
 164 #define SV_DMA_ADDR1      1
 165 #define SV_DMA_ADDR2      2
 166 #define SV_DMA_ADDR3      3
 167 #define SV_DMA_COUNT0     4
 168 #define SV_DMA_COUNT1     5
 169 #define SV_DMA_COUNT2     6
 170 #define SV_DMA_MODE       0xb
 171 #define SV_DMA_RESET      0xd
 172 #define SV_DMA_MASK       0xf
 173
 174 /*
 175  * DONT reset the DMA controllers unless you understand
 176  * the reset semantics. Assuming reset semantics as in
 177  * the 8237 does not work.
 178  */
 179
 180 #define DMA_MODE_AUTOINIT 0x10
 181 #define DMA_MODE_READ     0x44    /* I/O to memory, no autoinit, increment, single mode */
 182 #define DMA_MODE_WRITE    0x48    /* memory to I/O, no autoinit, increment, single mode */
 183
 184 #define SV_CODEC_CONTROL  0
 185 #define SV_CODEC_INTMASK  1
 186 #define SV_CODEC_STATUS   2
 187 #define SV_CODEC_IADDR    4
 188 #define SV_CODEC_IDATA    5
 189
 190 #define SV_CCTRL_RESET      0x80
 191 #define SV_CCTRL_INTADRIVE  0x20
 192 #define SV_CCTRL_WAVETABLE  0x08
 193 #define SV_CCTRL_REVERB     0x04
 194 #define SV_CCTRL_ENHANCED   0x01
 195
 196 #define SV_CINTMASK_DMAA    0x01
 197 #define SV_CINTMASK_DMAC    0x04
 198 #define SV_CINTMASK_SPECIAL 0x08
 199 #define SV_CINTMASK_UPDOWN  0x40
 200 #define SV_CINTMASK_MIDI    0x80
 201
 202 #define SV_CSTAT_DMAA       0x01
 203 #define SV_CSTAT_DMAC       0x04
 204 #define SV_CSTAT_SPECIAL    0x08
 205 #define SV_CSTAT_UPDOWN     0x40
 206 #define SV_CSTAT_MIDI       0x80
 207
 208 #define SV_CIADDR_TRD       0x80
 209 #define SV_CIADDR_MCE       0x40
 210
 211 /* codec indirect registers */
 212 #define SV_CIMIX_ADCINL     0x00
 213 #define SV_CIMIX_ADCINR     0x01
 214 #define SV_CIMIX_AUX1INL    0x02
 215 #define SV_CIMIX_AUX1INR    0x03
 216 #define SV_CIMIX_CDINL      0x04
 217 #define SV_CIMIX_CDINR      0x05
 218 #define SV_CIMIX_LINEINL    0x06
 219 #define SV_CIMIX_LINEINR    0x07
 220 #define SV_CIMIX_MICIN      0x08
 221 #define SV_CIMIX_SYNTHINL   0x0A
 222 #define SV_CIMIX_SYNTHINR   0x0B
 223 #define SV_CIMIX_AUX2INL    0x0C
 224 #define SV_CIMIX_AUX2INR    0x0D
 225 #define SV_CIMIX_ANALOGINL  0x0E
 226 #define SV_CIMIX_ANALOGINR  0x0F
 227 #define SV_CIMIX_PCMINL     0x10
 228 #define SV_CIMIX_PCMINR     0x11
 229
 230 #define SV_CIGAMECONTROL    0x09
 231 #define SV_CIDATAFMT        0x12
 232 #define SV_CIENABLE         0x13
 233 #define SV_CIUPDOWN         0x14
 234 #define SV_CIREVISION       0x15
 235 #define SV_CIADCOUTPUT      0x16
 236 #define SV_CIDMAABASECOUNT1 0x18
 237 #define SV_CIDMAABASECOUNT0 0x19
 238 #define SV_CIDMACBASECOUNT1 0x1c
 239 #define SV_CIDMACBASECOUNT0 0x1d
 240 #define SV_CIPCMSR0         0x1e
 241 #define SV_CIPCMSR1         0x1f
 242 #define SV_CISYNTHSR0       0x20
 243 #define SV_CISYNTHSR1       0x21
 244 #define SV_CIADCCLKSOURCE   0x22
 245 #define SV_CIADCALTSR       0x23
 246 #define SV_CIADCPLLM        0x24
 247 #define SV_CIADCPLLN        0x25
 248 #define SV_CISYNTHPLLM      0x26
 249 #define SV_CISYNTHPLLN      0x27
 250 #define SV_CIUARTCONTROL    0x2a
 251 #define SV_CIDRIVECONTROL   0x2b
 252 #define SV_CISRSSPACE       0x2c
 253 #define SV_CISRSCENTER      0x2d
 254 #define SV_CIWAVETABLESRC   0x2e
 255 #define SV_CIANALOGPWRDOWN  0x30
 256 #define SV_CIDIGITALPWRDOWN 0x31
 257
 258
 259 #define SV_CIMIX_ADCSRC_CD     0x20
 260 #define SV_CIMIX_ADCSRC_DAC    0x40
 261 #define SV_CIMIX_ADCSRC_AUX2   0x60
 262 #define SV_CIMIX_ADCSRC_LINE   0x80
 263 #define SV_CIMIX_ADCSRC_AUX1   0xa0
 264 #define SV_CIMIX_ADCSRC_MIC    0xc0
 265 #define SV_CIMIX_ADCSRC_MIXOUT 0xe0
 266 #define SV_CIMIX_ADCSRC_MASK   0xe0
 267
 268 #define SV_CFMT_STEREO     0x01
 269 #define SV_CFMT_16BIT      0x02
 270 #define SV_CFMT_MASK       0x03
 271 #define SV_CFMT_ASHIFT     0
 272 #define SV_CFMT_CSHIFT     4
 273
 274 static const unsigned sample_size[] = { 1, 2, 2, 4 };
 275 static const unsigned sample_shift[] = { 0, 1, 1, 2 };
 276
 277 #define SV_CENABLE_PPE     0x4
 278 #define SV_CENABLE_RE      0x2
 279 #define SV_CENABLE_PE      0x1
 280
 281
 282 /* MIDI buffer sizes */
 283
 284 #define MIDIINBUF  256
 285 #define MIDIOUTBUF 256
 286
 287 #define FMODE_MIDI_SHIFT 2
 288 #define FMODE_MIDI_READ  (FMODE_READ << FMODE_MIDI_SHIFT)
 289 #define FMODE_MIDI_WRITE (FMODE_WRITE << FMODE_MIDI_SHIFT)
 290
 291 #define FMODE_DMFM 0x10
 292
 293 /* --------------------------------------------------------------------- */
 294
 295 struct sv_state {
 296         /* magic */
 297         unsigned int magic;
 298
 299         /* list of sonicvibes devices */
 300         struct list_head devs;
 301
 302         /* the corresponding pci_dev structure */
 303         struct pci_dev *dev;
 304
 305         /* soundcore stuff */
 306         int dev_audio;
 307         int dev_mixer;
 308         int dev_midi;
 309         int dev_dmfm;
 310
 311         /* hardware resources */
 312         unsigned long iosb, ioenh, iosynth, iomidi;  /* long for SPARC */
 313         unsigned int iodmaa, iodmac, irq;
 314
 315         /* mixer stuff */
 316         struct {
 317                 unsigned int modcnt;
 318 #ifndef OSS_DOCUMENTED_MIXER_SEMANTICS
 319                 unsigned short vol[13];
 320 #endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
 321         } mix;
 322
 323         /* wave stuff */
 324         unsigned int rateadc, ratedac;
 325         unsigned char fmt, enable;
 326
 327         spinlock_t lock;
 328         struct semaphore open_sem;
 329         mode_t open_mode;
 330         wait_queue_head_t open_wait;
 331
 332         struct dmabuf {
 333                 void *rawbuf;
 334                 dma_addr_t dmaaddr;
 335                 unsigned buforder;
 336                 unsigned numfrag;
 337                 unsigned fragshift;
 338                 unsigned hwptr, swptr;
 339                 unsigned total_bytes;
 340                 int count;
 341                 unsigned error; /* over/underrun */
 342                 wait_queue_head_t wait;
 343                 /* redundant, but makes calculations easier */
 344                 unsigned fragsize;
 345                 unsigned dmasize;
 346                 unsigned fragsamples;
 347                 /* OSS stuff */
 348                 unsigned mapped:1;
 349                 unsigned ready:1;
 350                 unsigned endcleared:1;
 351                 unsigned enabled:1;
 352                 unsigned ossfragshift;
 353                 int ossmaxfrags;
 354                 unsigned subdivision;
 355         } dma_dac, dma_adc;
 356
 357         /* midi stuff */
 358         struct {
 359                 unsigned ird, iwr, icnt;
 360                 unsigned ord, owr, ocnt;
 361                 wait_queue_head_t iwait;
 362                 wait_queue_head_t owait;
 363                 struct timer_list timer;
 364                 unsigned char ibuf[MIDIINBUF];
 365                 unsigned char obuf[MIDIOUTBUF];
 366         } midi;
 367
 368         struct gameport *gameport;
 369 };
 370
 371 /* --------------------------------------------------------------------- */
 372
 373 static LIST_HEAD(devs);
 374 static unsigned long wavetable_mem;
 375
 376 /* --------------------------------------------------------------------- */
 377
 378 static inline unsigned ld2(unsigned int x)
 379 {
 380         unsigned r = 0;
 381
 382         if (x >= 0x10000) {
 383                 x >>= 16;
 384                 r += 16;
 385         }
 386         if (x >= 0x100) {
 387                 x >>= 8;
 388                 r += 8;
 389         }
 390         if (x >= 0x10) {
 391                 x >>= 4;
 392                 r += 4;
 393         }
 394         if (x >= 4) {
 395                 x >>= 2;
 396                 r += 2;
 397         }
 398         if (x >= 2)
 399                 r++;
 400         return r;
 401 }
 402
 403 /*
 404  * hweightN: returns the hamming weight (i.e. the number
 405  * of bits set) of a N-bit word
 406  */
 407
 408 #ifdef hweight32
 409 #undef hweight32
 410 #endif
 411
 412 static inline unsigned int hweight32(unsigned int w)
 413 {
 414         unsigned int res = (w & 0x55555555) + ((w >> 1) & 0x55555555);
 415         res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
 416         res = (res & 0x0F0F0F0F) + ((res >> 4) & 0x0F0F0F0F);
 417         res = (res & 0x00FF00FF) + ((res >> 8) & 0x00FF00FF);
 418         return (res & 0x0000FFFF) + ((res >> 16) & 0x0000FFFF);
 419 }
 420
 421 /* --------------------------------------------------------------------- */
 422
 423 /*
 424  * Why use byte IO? Nobody knows, but S3 does it also in their Windows driver.
 425  */
 426
 427 #undef DMABYTEIO
 428
 429 static void set_dmaa(struct sv_state *s, unsigned int addr, unsigned int count)
 430 {
 431 #ifdef DMABYTEIO
 432         unsigned io = s->iodmaa, u;
 433
 434         count--;
 435         for (u = 4; u > 0; u--, addr >>= 8, io++)
 436                 outb(addr & 0xff, io);
 437         for (u = 3; u > 0; u--, count >>= 8, io++)
 438                 outb(count & 0xff, io);
 439 #else /* DMABYTEIO */
 440         count--;
 441         outl(addr, s->iodmaa + SV_DMA_ADDR0);
 442         outl(count, s->iodmaa + SV_DMA_COUNT0);
 443 #endif /* DMABYTEIO */
 444         outb(0x18, s->iodmaa + SV_DMA_MODE);
 445 }
 446
 447 static void set_dmac(struct sv_state *s, unsigned int addr, unsigned int count)
 448 {
 449 #ifdef DMABYTEIO
 450         unsigned io = s->iodmac, u;
 451
 452         count >>= 1;
 453         count--;
 454         for (u = 4; u > 0; u--, addr >>= 8, io++)
 455                 outb(addr & 0xff, io);
 456         for (u = 3; u > 0; u--, count >>= 8, io++)
 457                 outb(count & 0xff, io);
 458 #else /* DMABYTEIO */
 459         count >>= 1;
 460         count--;
 461         outl(addr, s->iodmac + SV_DMA_ADDR0);
 462         outl(count, s->iodmac + SV_DMA_COUNT0);
 463 #endif /* DMABYTEIO */
 464         outb(0x14, s->iodmac + SV_DMA_MODE);
 465 }
 466
 467 static inline unsigned get_dmaa(struct sv_state *s)
 468 {
 469 #ifdef DMABYTEIO
 470         unsigned io = s->iodmaa+6, v = 0, u;
 471
 472         for (u = 3; u > 0; u--, io--) {
 473                 v <<= 8;
 474                 v |= inb(io);
 475         }
 476         return v + 1;
 477 #else /* DMABYTEIO */
 478         return (inl(s->iodmaa + SV_DMA_COUNT0) & 0xffffff) + 1;
 479 #endif /* DMABYTEIO */
 480 }
 481
 482 static inline unsigned get_dmac(struct sv_state *s)
 483 {
 484 #ifdef DMABYTEIO
 485         unsigned io = s->iodmac+6, v = 0, u;
 486
 487         for (u = 3; u > 0; u--, io--) {
 488                 v <<= 8;
 489                 v |= inb(io);
 490         }
 491         return (v + 1) << 1;
 492 #else /* DMABYTEIO */
 493         return ((inl(s->iodmac + SV_DMA_COUNT0) & 0xffffff) + 1) << 1;
 494 #endif /* DMABYTEIO */
 495 }
 496
 497 static void wrindir(struct sv_state *s, unsigned char idx, unsigned char data)
 498 {
 499         outb(idx & 0x3f, s->ioenh + SV_CODEC_IADDR);
 500         udelay(10);
 501         outb(data, s->ioenh + SV_CODEC_IDATA);
 502         udelay(10);
 503 }
 504
 505 static unsigned char rdindir(struct sv_state *s, unsigned char idx)
 506 {
 507         unsigned char v;
 508
 509         outb(idx & 0x3f, s->ioenh + SV_CODEC_IADDR);
 510         udelay(10);
 511         v = inb(s->ioenh + SV_CODEC_IDATA);
 512         udelay(10);
 513         return v;
 514 }
 515
 516 static void set_fmt(struct sv_state *s, unsigned char mask, unsigned char data)
 517 {
 518         unsigned long flags;
 519
 520         spin_lock_irqsave(&s->lock, flags);
 521         outb(SV_CIDATAFMT | SV_CIADDR_MCE, s->ioenh + SV_CODEC_IADDR);
 522         if (mask) {
 523                 s->fmt = inb(s->ioenh + SV_CODEC_IDATA);
 524                 udelay(10);
 525         }
 526         s->fmt = (s->fmt & mask) | data;
 527         outb(s->fmt, s->ioenh + SV_CODEC_IDATA);
 528         udelay(10);
 529         outb(0, s->ioenh + SV_CODEC_IADDR);
 530         spin_unlock_irqrestore(&s->lock, flags);
 531         udelay(10);
 532 }
 533
 534 static void frobindir(struct sv_state *s, unsigned char idx, unsigned char mask, unsigned char data)
 535 {
 536         outb(idx & 0x3f, s->ioenh + SV_CODEC_IADDR);
 537         udelay(10);
 538         outb((inb(s->ioenh + SV_CODEC_IDATA) & mask) ^ data, s->ioenh + SV_CODEC_IDATA);
 539         udelay(10);
 540 }
 541
 542 #define REFFREQUENCY  24576000
 543 #define ADCMULT 512
 544 #define FULLRATE 48000
 545
 546 static unsigned setpll(struct sv_state *s, unsigned char reg, unsigned rate)
 547 {
 548         unsigned long flags;
 549         unsigned char r, m=0, n=0;
 550         unsigned xm, xn, xr, xd, metric = ~0U;
 551         /* the warnings about m and n used uninitialized are bogus and may safely be ignored */
 552
 553         if (rate < 625000/ADCMULT)
 554                 rate = 625000/ADCMULT;
 555         if (rate > 150000000/ADCMULT)
 556                 rate = 150000000/ADCMULT;
 557         /* slight violation of specs, needed for continuous sampling rates */
 558         for (r = 0; rate < 75000000/ADCMULT; r += 0x20, rate <<= 1);
 559         for (xn = 3; xn < 35; xn++)
 560                 for (xm = 3; xm < 130; xm++) {
 561                         xr = REFFREQUENCY/ADCMULT * xm / xn;
 562                         xd = abs((signed)(xr - rate));
 563                         if (xd < metric) {
 564                                 metric = xd;
 565                                 m = xm - 2;
 566                                 n = xn - 2;
 567                         }
 568                 }
 569         reg &= 0x3f;
 570         spin_lock_irqsave(&s->lock, flags);
 571         outb(reg, s->ioenh + SV_CODEC_IADDR);
 572         udelay(10);
 573         outb(m, s->ioenh + SV_CODEC_IDATA);
 574         udelay(10);
 575         outb(reg+1, s->ioenh + SV_CODEC_IADDR);
 576         udelay(10);
 577         outb(r | n, s->ioenh + SV_CODEC_IDATA);
 578         spin_unlock_irqrestore(&s->lock, flags);
 579         udelay(10);
 580         return (REFFREQUENCY/ADCMULT * (m + 2) / (n + 2)) >> ((r >> 5) & 7);
 581 }
 582
 583 #if 0
 584
 585 static unsigned getpll(struct sv_state *s, unsigned char reg)
 586 {
 587         unsigned long flags;
 588         unsigned char m, n;
 589
 590         reg &= 0x3f;
 591         spin_lock_irqsave(&s->lock, flags);
 592         outb(reg, s->ioenh + SV_CODEC_IADDR);
 593         udelay(10);
 594         m = inb(s->ioenh + SV_CODEC_IDATA);
 595         udelay(10);
 596         outb(reg+1, s->ioenh + SV_CODEC_IADDR);
 597         udelay(10);
 598         n = inb(s->ioenh + SV_CODEC_IDATA);
 599         spin_unlock_irqrestore(&s->lock, flags);
 600         udelay(10);
 601         return (REFFREQUENCY/ADCMULT * (m + 2) / ((n & 0x1f) + 2)) >> ((n >> 5) & 7);
 602 }
 603
 604 #endif
 605
 606 static void set_dac_rate(struct sv_state *s, unsigned rate)
 607 {
 608         unsigned div;
 609         unsigned long flags;
 610
 611         if (rate > 48000)
 612                 rate = 48000;
 613         if (rate < 4000)
 614                 rate = 4000;
 615         div = (rate * 65536 + FULLRATE/2) / FULLRATE;
 616         if (div > 65535)
 617                 div = 65535;
 618         spin_lock_irqsave(&s->lock, flags);
 619         wrindir(s, SV_CIPCMSR1, div >> 8);
 620         wrindir(s, SV_CIPCMSR0, div);
 621         spin_unlock_irqrestore(&s->lock, flags);
 622         s->ratedac = (div * FULLRATE + 32768) / 65536;
 623 }
 624
 625 static void set_adc_rate(struct sv_state *s, unsigned rate)
 626 {
 627         unsigned long flags;
 628         unsigned rate1, rate2, div;
 629
 630         if (rate > 48000)
 631                 rate = 48000;
 632         if (rate < 4000)
 633                 rate = 4000;
 634         rate1 = setpll(s, SV_CIADCPLLM, rate);
 635         div = (48000 + rate/2) / rate;
 636         if (div > 8)
 637                 div = 8;
 638         rate2 = (48000 + div/2) / div;
 639         spin_lock_irqsave(&s->lock, flags);
 640         wrindir(s, SV_CIADCALTSR, (div-1) << 4);
 641         if (abs((signed)(rate-rate2)) <= abs((signed)(rate-rate1))) {
 642                 wrindir(s, SV_CIADCCLKSOURCE, 0x10);
 643                 s->rateadc = rate2;
 644         } else {
 645                 wrindir(s, SV_CIADCCLKSOURCE, 0x00);
 646                 s->rateadc = rate1;
 647         }
 648         spin_unlock_irqrestore(&s->lock, flags);
 649 }
 650
 651 /* --------------------------------------------------------------------- */
 652
 653 static inline void stop_adc(struct sv_state *s)
 654 {
 655         unsigned long flags;
 656
 657         spin_lock_irqsave(&s->lock, flags);
 658         s->enable &= ~SV_CENABLE_RE;
 659         wrindir(s, SV_CIENABLE, s->enable);
 660         spin_unlock_irqrestore(&s->lock, flags);
 661 }
 662
 663 static inline void stop_dac(struct sv_state *s)
 664 {
 665         unsigned long flags;
 666
 667         spin_lock_irqsave(&s->lock, flags);
 668         s->enable &= ~(SV_CENABLE_PPE | SV_CENABLE_PE);
 669         wrindir(s, SV_CIENABLE, s->enable);
 670         spin_unlock_irqrestore(&s->lock, flags);
 671 }
 672
 673 static void start_dac(struct sv_state *s)
 674 {
 675         unsigned long flags;
 676
 677         spin_lock_irqsave(&s->lock, flags);
 678         if ((s->dma_dac.mapped || s->dma_dac.count > 0) && s->dma_dac.ready) {
 679                 s->enable = (s->enable & ~SV_CENABLE_PPE) | SV_CENABLE_PE;
 680                 wrindir(s, SV_CIENABLE, s->enable);
 681         }
 682         spin_unlock_irqrestore(&s->lock, flags);
 683 }
 684
 685 static void start_adc(struct sv_state *s)
 686 {
 687         unsigned long flags;
 688
 689         spin_lock_irqsave(&s->lock, flags);
 690         if ((s->dma_adc.mapped || s->dma_adc.count < (signed)(s->dma_adc.dmasize - 2*s->dma_adc.fragsize))
 691             && s->dma_adc.ready) {
 692                 s->enable |= SV_CENABLE_RE;
 693                 wrindir(s, SV_CIENABLE, s->enable);
 694         }
 695         spin_unlock_irqrestore(&s->lock, flags);
 696 }
 697
 698 /* --------------------------------------------------------------------- */
 699
 700 #define DMABUF_DEFAULTORDER (17-PAGE_SHIFT)
 701 #define DMABUF_MINORDER 1
 702
 703 static void dealloc_dmabuf(struct sv_state *s, struct dmabuf *db)
 704 {
 705         struct page *page, *pend;
 706
 707         if (db->rawbuf) {
 708                 /* undo marking the pages as reserved */
 709                 pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
 710                 for (page = virt_to_page(db->rawbuf); page <= pend; page++)
 711                         ClearPageReserved(page);
 712                 pci_free_consistent(s->dev, PAGE_SIZE << db->buforder, db->rawbuf, db->dmaaddr);
 713         }
 714         db->rawbuf = NULL;
 715         db->mapped = db->ready = 0;
 716 }
 717
 718
 719 /* DMAA is used for playback, DMAC is used for recording */
 720
 721 static int prog_dmabuf(struct sv_state *s, unsigned rec)
 722 {
 723         struct dmabuf *db = rec ? &s->dma_adc : &s->dma_dac;
 724         unsigned rate = rec ? s->rateadc : s->ratedac;
 725         int order;
 726         unsigned bytepersec;
 727         unsigned bufs;
 728         struct page *page, *pend;
 729         unsigned char fmt;
 730         unsigned long flags;
 731
 732         spin_lock_irqsave(&s->lock, flags);
 733         fmt = s->fmt;
 734         if (rec) {
 735                 s->enable &= ~SV_CENABLE_RE;
 736                 fmt >>= SV_CFMT_CSHIFT;
 737         } else {
 738                 s->enable &= ~SV_CENABLE_PE;
 739                 fmt >>= SV_CFMT_ASHIFT;
 740         }
 741         wrindir(s, SV_CIENABLE, s->enable);
 742         spin_unlock_irqrestore(&s->lock, flags);
 743         fmt &= SV_CFMT_MASK;
 744         db->hwptr = db->swptr = db->total_bytes = db->count = db->error = db->endcleared = 0;
 745         if (!db->rawbuf) {
 746                 db->ready = db->mapped = 0;
 747                 for (order = DMABUF_DEFAULTORDER; order >= DMABUF_MINORDER; order--)
 748                         if ((db->rawbuf = pci_alloc_consistent(s->dev, PAGE_SIZE << order, &db->dmaaddr)))
 749                                 break;
 750                 if (!db->rawbuf)
 751                         return -ENOMEM;
 752                 db->buforder = order;
 753                 if ((virt_to_bus(db->rawbuf) ^ (virt_to_bus(db->rawbuf) + (PAGE_SIZE << db->buforder) - 1)) & ~0xffff)
 754                         printk(KERN_DEBUG "sv: DMA buffer crosses 64k boundary: busaddr 0x%lx  size %ld\n",
 755                                virt_to_bus(db->rawbuf), PAGE_SIZE << db->buforder);
 756                 if ((virt_to_bus(db->rawbuf) + (PAGE_SIZE << db->buforder) - 1) & ~0xffffff)
 757                         printk(KERN_DEBUG "sv: DMA buffer beyond 16MB: busaddr 0x%lx  size %ld\n",
 758                                virt_to_bus(db->rawbuf), PAGE_SIZE << db->buforder);
 759                 /* now mark the pages as reserved; otherwise remap_pfn_range doesn't do what we want */
 760                 pend = virt_to_page(db->rawbuf + (PAGE_SIZE << db->buforder) - 1);
 761                 for (page = virt_to_page(db->rawbuf); page <= pend; page++)
 762                         SetPageReserved(page);
 763         }
 764         bytepersec = rate << sample_shift[fmt];
 765         bufs = PAGE_SIZE << db->buforder;
 766         if (db->ossfragshift) {
 767                 if ((1000 << db->ossfragshift) < bytepersec)
 768                         db->fragshift = ld2(bytepersec/1000);
 769                 else
 770                         db->fragshift = db->ossfragshift;
 771         } else {
 772                 db->fragshift = ld2(bytepersec/100/(db->subdivision ? db->subdivision : 1));
 773                 if (db->fragshift < 3)
 774                         db->fragshift = 3;
 775         }
 776         db->numfrag = bufs >> db->fragshift;
 777         while (db->numfrag < 4 && db->fragshift > 3) {
 778                 db->fragshift--;
 779                 db->numfrag = bufs >> db->fragshift;
 780         }
 781         db->fragsize = 1 << db->fragshift;
 782         if (db->ossmaxfrags >= 4 && db->ossmaxfrags < db->numfrag)
 783                 db->numfrag = db->ossmaxfrags;
 784         db->fragsamples = db->fragsize >> sample_shift[fmt];
 785         db->dmasize = db->numfrag << db->fragshift;
 786         memset(db->rawbuf, (fmt & SV_CFMT_16BIT) ? 0 : 0x80, db->dmasize);
 787         spin_lock_irqsave(&s->lock, flags);
 788         if (rec) {
 789                 set_dmac(s, db->dmaaddr, db->numfrag << db->fragshift);
 790                 /* program enhanced mode registers */
 791                 wrindir(s, SV_CIDMACBASECOUNT1, (db->fragsamples-1) >> 8);
 792                 wrindir(s, SV_CIDMACBASECOUNT0, db->fragsamples-1);
 793         } else {
 794                 set_dmaa(s, db->dmaaddr, db->numfrag << db->fragshift);
 795                 /* program enhanced mode registers */
 796                 wrindir(s, SV_CIDMAABASECOUNT1, (db->fragsamples-1) >> 8);
 797                 wrindir(s, SV_CIDMAABASECOUNT0, db->fragsamples-1);
 798         }
 799         spin_unlock_irqrestore(&s->lock, flags);
 800         db->enabled = 1;
 801         db->ready = 1;
 802         return 0;
 803 }
 804
 805 static inline void clear_advance(struct sv_state *s)
 806 {
 807         unsigned char c = (s->fmt & (SV_CFMT_16BIT << SV_CFMT_ASHIFT)) ? 0 : 0x80;
 808         unsigned char *buf = s->dma_dac.rawbuf;
 809         unsigned bsize = s->dma_dac.dmasize;
 810         unsigned bptr = s->dma_dac.swptr;
 811         unsigned len = s->dma_dac.fragsize;
 812
 813         if (bptr + len > bsize) {
 814                 unsigned x = bsize - bptr;
 815                 memset(buf + bptr, c, x);
 816                 bptr = 0;
 817                 len -= x;
 818         }
 819         memset(buf + bptr, c, len);
 820 }
 821
 822 /* call with spinlock held! */
 823 static void sv_update_ptr(struct sv_state *s)
 824 {
 825         unsigned hwptr;
 826         int diff;
 827
 828         /* update ADC pointer */
 829         if (s->dma_adc.ready) {
 830                 hwptr = (s->dma_adc.dmasize - get_dmac(s)) % s->dma_adc.dmasize;
 831                 diff = (s->dma_adc.dmasize + hwptr - s->dma_adc.hwptr) % s->dma_adc.dmasize;
 832                 s->dma_adc.hwptr = hwptr;
 833                 s->dma_adc.total_bytes += diff;
 834                 s->dma_adc.count += diff;
 835                 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
 836                         wake_up(&s->dma_adc.wait);
 837                 if (!s->dma_adc.mapped) {
 838                         if (s->dma_adc.count > (signed)(s->dma_adc.dmasize - ((3 * s->dma_adc.fragsize) >> 1))) {
 839                                 s->enable &= ~SV_CENABLE_RE;
 840                                 wrindir(s, SV_CIENABLE, s->enable);
 841                                 s->dma_adc.error++;
 842                         }
 843                 }
 844         }
 845         /* update DAC pointer */
 846         if (s->dma_dac.ready) {
 847                 hwptr = (s->dma_dac.dmasize - get_dmaa(s)) % s->dma_dac.dmasize;
 848                 diff = (s->dma_dac.dmasize + hwptr - s->dma_dac.hwptr) % s->dma_dac.dmasize;
 849                 s->dma_dac.hwptr = hwptr;
 850                 s->dma_dac.total_bytes += diff;
 851                 if (s->dma_dac.mapped) {
 852                         s->dma_dac.count += diff;
 853                         if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
 854                                 wake_up(&s->dma_dac.wait);
 855                 } else {
 856                         s->dma_dac.count -= diff;
 857                         if (s->dma_dac.count <= 0) {
 858                                 s->enable &= ~SV_CENABLE_PE;
 859                                 wrindir(s, SV_CIENABLE, s->enable);
 860                                 s->dma_dac.error++;
 861                         } else if (s->dma_dac.count <= (signed)s->dma_dac.fragsize && !s->dma_dac.endcleared) {
 862                                 clear_advance(s);
 863                                 s->dma_dac.endcleared = 1;
 864                         }
 865                         if (s->dma_dac.count + (signed)s->dma_dac.fragsize <= (signed)s->dma_dac.dmasize)
 866                                 wake_up(&s->dma_dac.wait);
 867                 }
 868         }
 869 }
 870
 871 /* hold spinlock for the following! */
 872 static void sv_handle_midi(struct sv_state *s)
 873 {
 874         unsigned char ch;
 875         int wake;
 876
 877         wake = 0;
 878         while (!(inb(s->iomidi+1) & 0x80)) {
 879                 ch = inb(s->iomidi);
 880                 if (s->midi.icnt < MIDIINBUF) {
 881                         s->midi.ibuf[s->midi.iwr] = ch;
 882                         s->midi.iwr = (s->midi.iwr + 1) % MIDIINBUF;
 883                         s->midi.icnt++;
 884                 }
 885                 wake = 1;
 886         }
 887         if (wake)
 888                 wake_up(&s->midi.iwait);
 889         wake = 0;
 890         while (!(inb(s->iomidi+1) & 0x40) && s->midi.ocnt > 0) {
 891                 outb(s->midi.obuf[s->midi.ord], s->iomidi);
 892                 s->midi.ord = (s->midi.ord + 1) % MIDIOUTBUF;
 893                 s->midi.ocnt--;
 894                 if (s->midi.ocnt < MIDIOUTBUF-16)
 895                         wake = 1;
 896         }
 897         if (wake)
 898                 wake_up(&s->midi.owait);
 899 }
 900
 901 static irqreturn_t sv_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 902 {
 903         struct sv_state *s = (struct sv_state *)dev_id;
 904         unsigned int intsrc;
 905
 906         /* fastpath out, to ease interrupt sharing */
 907         intsrc = inb(s->ioenh + SV_CODEC_STATUS);
 908         if (!(intsrc & (SV_CSTAT_DMAA | SV_CSTAT_DMAC | SV_CSTAT_MIDI)))
 909                 return IRQ_NONE;
 910         spin_lock(&s->lock);
 911         sv_update_ptr(s);
 912         sv_handle_midi(s);
 913         spin_unlock(&s->lock);
 914         return IRQ_HANDLED;
 915 }
 916
 917 static void sv_midi_timer(unsigned long data)
 918 {
 919         struct sv_state *s = (struct sv_state *)data;
 920         unsigned long flags;
 921
 922         spin_lock_irqsave(&s->lock, flags);
 923         sv_handle_midi(s);
 924         spin_unlock_irqrestore(&s->lock, flags);
 925         s->midi.timer.expires = jiffies+1;
 926         add_timer(&s->midi.timer);
 927 }
 928
 929 /* --------------------------------------------------------------------- */
 930
 931 static const char invalid_magic[] = KERN_CRIT "sv: invalid magic value\n";
 932
 933 #define VALIDATE_STATE(s)                         \
 934 ({                                                \
 935         if (!(s) || (s)->magic != SV_MAGIC) { \
 936                 printk(invalid_magic);            \
 937                 return -ENXIO;                    \
 938         }                                         \
 939 })
 940
 941 /* --------------------------------------------------------------------- */
 942
 943 #define MT_4          1
 944 #define MT_5MUTE      2
 945 #define MT_4MUTEMONO  3
 946 #define MT_6MUTE      4
 947
 948 static const struct {
 949         unsigned left:5;
 950         unsigned right:5;
 951         unsigned type:3;
 952         unsigned rec:3;
 953 } mixtable[SOUND_MIXER_NRDEVICES] = {
 954         [SOUND_MIXER_RECLEV] = { SV_CIMIX_ADCINL,    SV_CIMIX_ADCINR,    MT_4,         0 },
 955         [SOUND_MIXER_LINE1]  = { SV_CIMIX_AUX1INL,   SV_CIMIX_AUX1INR,   MT_5MUTE,     5 },
 956         [SOUND_MIXER_CD]     = { SV_CIMIX_CDINL,     SV_CIMIX_CDINR,     MT_5MUTE,     1 },
 957         [SOUND_MIXER_LINE]   = { SV_CIMIX_LINEINL,   SV_CIMIX_LINEINR,   MT_5MUTE,     4 },
 958         [SOUND_MIXER_MIC]    = { SV_CIMIX_MICIN,     SV_CIMIX_ADCINL,    MT_4MUTEMONO, 6 },
 959         [SOUND_MIXER_SYNTH]  = { SV_CIMIX_SYNTHINL,  SV_CIMIX_SYNTHINR,  MT_5MUTE,     2 },
 960         [SOUND_MIXER_LINE2]  = { SV_CIMIX_AUX2INL,   SV_CIMIX_AUX2INR,   MT_5MUTE,     3 },
 961         [SOUND_MIXER_VOLUME] = { SV_CIMIX_ANALOGINL, SV_CIMIX_ANALOGINR, MT_5MUTE,     7 },
 962         [SOUND_MIXER_PCM]    = { SV_CIMIX_PCMINL,    SV_CIMIX_PCMINR,    MT_6MUTE,     0 }
 963 };
 964
 965 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
 966
 967 static int return_mixval(struct sv_state *s, unsigned i, int *arg)
 968 {
 969         unsigned long flags;
 970         unsigned char l, r, rl, rr;
 971
 972         spin_lock_irqsave(&s->lock, flags);
 973         l = rdindir(s, mixtable[i].left);
 974         r = rdindir(s, mixtable[i].right);
 975         spin_unlock_irqrestore(&s->lock, flags);
 976         switch (mixtable[i].type) {
 977         case MT_4:
 978                 r &= 0xf;
 979                 l &= 0xf;
 980                 rl = 10 + 6 * (l & 15);
 981                 rr = 10 + 6 * (r & 15);
 982                 break;
 983
 984         case MT_4MUTEMONO:
 985                 rl = 55 - 3 * (l & 15);
 986                 if (r & 0x10)
 987                         rl += 45;
 988                 rr = rl;
 989                 r = l;
 990                 break;
 991
 992         case MT_5MUTE:
 993         default:
 994                 rl = 100 - 3 * (l & 31);
 995                 rr = 100 - 3 * (r & 31);
 996                 break;
 997
 998         case MT_6MUTE:
 999                 rl = 100 - 3 * (l & 63) / 2;
1000                 rr = 100 - 3 * (r & 63) / 2;
1001                 break;
1002         }
1003         if (l & 0x80)
1004                 rl = 0;
1005         if (r & 0x80)
1006                 rr = 0;
1007         return put_user((rr << 8) | rl, arg);
1008 }
1009
1010 #else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
1011
1012 static const unsigned char volidx[SOUND_MIXER_NRDEVICES] =
1013 {
1014         [SOUND_MIXER_RECLEV] = 1,
1015         [SOUND_MIXER_LINE1]  = 2,
1016         [SOUND_MIXER_CD]     = 3,
1017         [SOUND_MIXER_LINE]   = 4,
1018         [SOUND_MIXER_MIC]    = 5,
1019         [SOUND_MIXER_SYNTH]  = 6,
1020         [SOUND_MIXER_LINE2]  = 7,
1021         [SOUND_MIXER_VOLUME] = 8,
1022         [SOUND_MIXER_PCM]    = 9
1023 };
1024
1025 #endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
1026
1027 static unsigned mixer_recmask(struct sv_state *s)
1028 {
1029         unsigned long flags;
1030         int i, j;
1031
1032         spin_lock_irqsave(&s->lock, flags);
1033         j = rdindir(s, SV_CIMIX_ADCINL) >> 5;
1034         spin_unlock_irqrestore(&s->lock, flags);
1035         j &= 7;
1036         for (i = 0; i < SOUND_MIXER_NRDEVICES && mixtable[i].rec != j; i++);
1037         return 1 << i;
1038 }
1039
1040 static int mixer_ioctl(struct sv_state *s, unsigned int cmd, unsigned long arg)
1041 {
1042         unsigned long flags;
1043         int i, val;
1044         unsigned char l, r, rl, rr;
1045         int __user *p = (int __user *)arg;
1046
1047         VALIDATE_STATE(s);
1048         if (cmd == SOUND_MIXER_INFO) {
1049                 mixer_info info;
1050                 memset(&info, 0, sizeof(info));
1051                 strlcpy(info.id, "SonicVibes", sizeof(info.id));
1052                 strlcpy(info.name, "S3 SonicVibes", sizeof(info.name));
1053                 info.modify_counter = s->mix.modcnt;
1054                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
1055                         return -EFAULT;
1056                 return 0;
1057         }
1058         if (cmd == SOUND_OLD_MIXER_INFO) {
1059                 _old_mixer_info info;
1060                 memset(&info, 0, sizeof(info));
1061                 strlcpy(info.id, "SonicVibes", sizeof(info.id));
1062                 strlcpy(info.name, "S3 SonicVibes", sizeof(info.name));
1063                 if (copy_to_user((void __user *)arg, &info, sizeof(info)))
1064                         return -EFAULT;
1065                 return 0;
1066         }
1067         if (cmd == OSS_GETVERSION)
1068                 return put_user(SOUND_VERSION, p);
1069         if (cmd == SOUND_MIXER_PRIVATE1) {  /* SRS settings */
1070                 if (get_user(val, p))
1071                         return -EFAULT;
1072                 spin_lock_irqsave(&s->lock, flags);
1073                 if (val & 1) {
1074                         if (val & 2) {
1075                                 l = 4 - ((val >> 2) & 7);
1076                                 if (l & ~3)
1077                                         l = 4;
1078                                 r = 4 - ((val >> 5) & 7);
1079                                 if (r & ~3)
1080                                         r = 4;
1081                                 wrindir(s, SV_CISRSSPACE, l);
1082                                 wrindir(s, SV_CISRSCENTER, r);
1083                         } else
1084                                 wrindir(s, SV_CISRSSPACE, 0x80);
1085                 }
1086                 l = rdindir(s, SV_CISRSSPACE);
1087                 r = rdindir(s, SV_CISRSCENTER);
1088                 spin_unlock_irqrestore(&s->lock, flags);
1089                 if (l & 0x80)
1090                         return put_user(0, p);
1091                 return put_user(((4 - (l & 7)) << 2) | ((4 - (r & 7)) << 5) | 2, p);
1092         }
1093         if (_IOC_TYPE(cmd) != 'M' || _SIOC_SIZE(cmd) != sizeof(int))
1094                 return -EINVAL;
1095         if (_SIOC_DIR(cmd) == _SIOC_READ) {
1096                 switch (_IOC_NR(cmd)) {
1097                 case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
1098                         return put_user(mixer_recmask(s), p);
1099
1100                 case SOUND_MIXER_DEVMASK: /* Arg contains a bit for each supported device */
1101                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1102                                 if (mixtable[i].type)
1103                                         val |= 1 << i;
1104                         return put_user(val, p);
1105
1106                 case SOUND_MIXER_RECMASK: /* Arg contains a bit for each supported recording source */
1107                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1108                                 if (mixtable[i].rec)
1109                                         val |= 1 << i;
1110                         return put_user(val, p);
1111
1112                 case SOUND_MIXER_STEREODEVS: /* Mixer channels supporting stereo */
1113                         for (val = i = 0; i < SOUND_MIXER_NRDEVICES; i++)
1114                                 if (mixtable[i].type && mixtable[i].type != MT_4MUTEMONO)
1115                                         val |= 1 << i;
1116                         return put_user(val, p);
1117
1118                 case SOUND_MIXER_CAPS:
1119                         return put_user(SOUND_CAP_EXCL_INPUT, p);
1120
1121                 default:
1122                         i = _IOC_NR(cmd);
1123                         if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
1124                                 return -EINVAL;
1125 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
1126                         return return_mixval(s, i, p);
1127 #else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
1128                         if (!volidx[i])
1129                                 return -EINVAL;
1130                         return put_user(s->mix.vol[volidx[i]-1], p);
1131 #endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
1132                 }
1133         }
1134         if (_SIOC_DIR(cmd) != (_SIOC_READ|_SIOC_WRITE))
1135                 return -EINVAL;
1136         s->mix.modcnt++;
1137         switch (_IOC_NR(cmd)) {
1138         case SOUND_MIXER_RECSRC: /* Arg contains a bit for each recording source */
1139                 if (get_user(val, p))
1140                         return -EFAULT;
1141                 i = hweight32(val);
1142                 if (i == 0)
1143                         return 0; /*val = mixer_recmask(s);*/
1144                 else if (i > 1)
1145                         val &= ~mixer_recmask(s);
1146                 for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) {
1147                         if (!(val & (1 << i)))
1148                                 continue;
1149                         if (mixtable[i].rec)
1150                                 break;
1151                 }
1152                 if (i == SOUND_MIXER_NRDEVICES)
1153                         return 0;
1154                 spin_lock_irqsave(&s->lock, flags);
1155                 frobindir(s, SV_CIMIX_ADCINL, 0x1f, mixtable[i].rec << 5);
1156                 frobindir(s, SV_CIMIX_ADCINR, 0x1f, mixtable[i].rec << 5);
1157                 spin_unlock_irqrestore(&s->lock, flags);
1158                 return 0;
1159
1160         default:
1161                 i = _IOC_NR(cmd);
1162                 if (i >= SOUND_MIXER_NRDEVICES || !mixtable[i].type)
1163                         return -EINVAL;
1164                 if (get_user(val, p))
1165                         return -EFAULT;
1166                 l = val & 0xff;
1167                 r = (val >> 8) & 0xff;
1168                 if (mixtable[i].type == MT_4MUTEMONO)
1169                         l = (r + l) / 2;
1170                 if (l > 100)
1171                         l = 100;
1172                 if (r > 100)
1173                         r = 100;
1174                 spin_lock_irqsave(&s->lock, flags);
1175                 switch (mixtable[i].type) {
1176                 case MT_4:
1177                         if (l >= 10)
1178                                 l -= 10;
1179                         if (r >= 10)
1180                                 r -= 10;
1181                         frobindir(s, mixtable[i].left, 0xf0, l / 6);
1182                         frobindir(s, mixtable[i].right, 0xf0, l / 6);
1183                         break;
1184
1185                 case MT_4MUTEMONO:
1186                         rr = 0;
1187                         if (l < 10)
1188                                 rl = 0x80;
1189                         else {
1190                                 if (l >= 55) {
1191                                         rr = 0x10;
1192                                         l -= 45;
1193                                 }
1194                                 rl = (55 - l) / 3;
1195                         }
1196                         wrindir(s, mixtable[i].left, rl);
1197                         frobindir(s, mixtable[i].right, ~0x10, rr);
1198                         break;
1199
1200                 case MT_5MUTE:
1201                         if (l < 7)
1202                                 rl = 0x80;
1203                         else
1204                                 rl = (100 - l) / 3;
1205                         if (r < 7)
1206                                 rr = 0x80;
1207                         else
1208                                 rr = (100 - r) / 3;
1209                         wrindir(s, mixtable[i].left, rl);
1210                         wrindir(s, mixtable[i].right, rr);
1211                         break;
1212
1213                 case MT_6MUTE:
1214                         if (l < 6)
1215                                 rl = 0x80;
1216                         else
1217                                 rl = (100 - l) * 2 / 3;
1218                         if (r < 6)
1219                                 rr = 0x80;
1220                         else
1221                                 rr = (100 - r) * 2 / 3;
1222                         wrindir(s, mixtable[i].left, rl);
1223                         wrindir(s, mixtable[i].right, rr);
1224                         break;
1225                 }
1226                 spin_unlock_irqrestore(&s->lock, flags);
1227 #ifdef OSS_DOCUMENTED_MIXER_SEMANTICS
1228                 return return_mixval(s, i, p);
1229 #else /* OSS_DOCUMENTED_MIXER_SEMANTICS */
1230                 if (!volidx[i])
1231                         return -EINVAL;
1232                 s->mix.vol[volidx[i]-1] = val;
1233                 return put_user(s->mix.vol[volidx[i]-1], p);
1234 #endif /* OSS_DOCUMENTED_MIXER_SEMANTICS */
1235         }
1236 }
1237
1238 /* --------------------------------------------------------------------- */
1239
1240 static int sv_open_mixdev(struct inode *inode, struct file *file)
1241 {
1242         int minor = iminor(inode);
1243         struct list_head *list;
1244         struct sv_state *s;
1245
1246         for (list = devs.next; ; list = list->next) {
1247                 if (list == &devs)
1248                         return -ENODEV;
1249                 s = list_entry(list, struct sv_state, devs);
1250                 if (s->dev_mixer == minor)
1251                         break;
1252         }
1253         VALIDATE_STATE(s);
1254         file->private_data = s;
1255         return nonseekable_open(inode, file);
1256 }
1257
1258 static int sv_release_mixdev(struct inode *inode, struct file *file)
1259 {
1260         struct sv_state *s = (struct sv_state *)file->private_data;
1261
1262         VALIDATE_STATE(s);
1263         return 0;
1264 }
1265
1266 static int sv_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1267 {
1268         return mixer_ioctl((struct sv_state *)file->private_data, cmd, arg);
1269 }
1270
1271 static /*const*/ struct file_operations sv_mixer_fops = {
1272         .owner          = THIS_MODULE,
1273         .llseek         = no_llseek,
1274         .ioctl          = sv_ioctl_mixdev,
1275         .open           = sv_open_mixdev,
1276         .release        = sv_release_mixdev,
1277 };
1278
1279 /* --------------------------------------------------------------------- */
1280
1281 static int drain_dac(struct sv_state *s, int nonblock)
1282 {
1283         DECLARE_WAITQUEUE(wait, current);
1284         unsigned long flags;
1285         int count, tmo;
1286
1287         if (s->dma_dac.mapped || !s->dma_dac.ready)
1288                 return 0;
1289         add_wait_queue(&s->dma_dac.wait, &wait);
1290         for (;;) {
1291                 __set_current_state(TASK_INTERRUPTIBLE);
1292                 spin_lock_irqsave(&s->lock, flags);
1293                 count = s->dma_dac.count;
1294                 spin_unlock_irqrestore(&s->lock, flags);
1295                 if (count <= 0)
1296                         break;
1297                 if (signal_pending(current))
1298                         break;
1299                 if (nonblock) {
1300                         remove_wait_queue(&s->dma_dac.wait, &wait);
1301                         set_current_state(TASK_RUNNING);
1302                         return -EBUSY;
1303                 }
1304                 tmo = 3 * HZ * (count + s->dma_dac.fragsize) / 2 / s->ratedac;
1305                 tmo >>= sample_shift[(s->fmt >> SV_CFMT_ASHIFT) & SV_CFMT_MASK];
1306                 if (!schedule_timeout(tmo + 1))
1307                         printk(KERN_DEBUG "sv: dma timed out??\n");
1308         }
1309         remove_wait_queue(&s->dma_dac.wait, &wait);
1310         set_current_state(TASK_RUNNING);
1311         if (signal_pending(current))
1312                 return -ERESTARTSYS;
1313         return 0;
1314 }
1315
1316 /* --------------------------------------------------------------------- */
1317
1318 static ssize_t sv_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
1319 {
1320         struct sv_state *s = (struct sv_state *)file->private_data;
1321         DECLARE_WAITQUEUE(wait, current);
1322         ssize_t ret;
1323         unsigned long flags;
1324         unsigned swptr;
1325         int cnt;
1326
1327         VALIDATE_STATE(s);
1328         if (s->dma_adc.mapped)
1329                 return -ENXIO;
1330         if (!s->dma_adc.ready && (ret = prog_dmabuf(s, 1)))
1331                 return ret;
1332         if (!access_ok(VERIFY_WRITE, buffer, count))
1333                 return -EFAULT;
1334         ret = 0;
1335 #if 0
1336         spin_lock_irqsave(&s->lock, flags);
1337         sv_update_ptr(s);
1338         spin_unlock_irqrestore(&s->lock, flags);
1339 #endif
1340         add_wait_queue(&s->dma_adc.wait, &wait);
1341         while (count > 0) {
1342                 spin_lock_irqsave(&s->lock, flags);
1343                 swptr = s->dma_adc.swptr;
1344                 cnt = s->dma_adc.dmasize-swptr;
1345                 if (s->dma_adc.count < cnt)
1346                         cnt = s->dma_adc.count;
1347                 if (cnt <= 0)
1348                         __set_current_state(TASK_INTERRUPTIBLE);
1349                 spin_unlock_irqrestore(&s->lock, flags);
1350                 if (cnt > count)
1351                         cnt = count;
1352                 if (cnt <= 0) {
1353                         if (s->dma_adc.enabled)
1354                                 start_adc(s);
1355                         if (file->f_flags & O_NONBLOCK) {
1356                                 if (!ret)
1357                                         ret = -EAGAIN;
1358                                 break;
1359                         }
1360                         if (!schedule_timeout(HZ)) {
1361                                 printk(KERN_DEBUG "sv: read: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
1362                                        s->dma_adc.dmasize, s->dma_adc.fragsize, s->dma_adc.count,
1363                                        s->dma_adc.hwptr, s->dma_adc.swptr);
1364                                 stop_adc(s);
1365                                 spin_lock_irqsave(&s->lock, flags);
1366                                 set_dmac(s, virt_to_bus(s->dma_adc.rawbuf), s->dma_adc.numfrag << s->dma_adc.fragshift);
1367                                 /* program enhanced mode registers */
1368                                 wrindir(s, SV_CIDMACBASECOUNT1, (s->dma_adc.fragsamples-1) >> 8);
1369                                 wrindir(s, SV_CIDMACBASECOUNT0, s->dma_adc.fragsamples-1);
1370                                 s->dma_adc.count = s->dma_adc.hwptr = s->dma_adc.swptr = 0;
1371                                 spin_unlock_irqrestore(&s->lock, flags);
1372                         }
1373                         if (signal_pending(current)) {
1374                                 if (!ret)
1375                                         ret = -ERESTARTSYS;
1376                                 break;
1377                         }
1378                         continue;
1379                 }
1380                 if (copy_to_user(buffer, s->dma_adc.rawbuf + swptr, cnt)) {
1381                         if (!ret)
1382                                 ret = -EFAULT;
1383                         break;
1384                 }
1385                 swptr = (swptr + cnt) % s->dma_adc.dmasize;
1386                 spin_lock_irqsave(&s->lock, flags);
1387                 s->dma_adc.swptr = swptr;
1388                 s->dma_adc.count -= cnt;
1389                 spin_unlock_irqrestore(&s->lock, flags);
1390                 count -= cnt;
1391                 buffer += cnt;
1392                 ret += cnt;
1393                 if (s->dma_adc.enabled)
1394                         start_adc(s);
1395         }
1396         remove_wait_queue(&s->dma_adc.wait, &wait);
1397         set_current_state(TASK_RUNNING);
1398         return ret;
1399 }
1400
1401 static ssize_t sv_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
1402 {
1403         struct sv_state *s = (struct sv_state *)file->private_data;
1404         DECLARE_WAITQUEUE(wait, current);
1405         ssize_t ret;
1406         unsigned long flags;
1407         unsigned swptr;
1408         int cnt;
1409
1410         VALIDATE_STATE(s);
1411         if (s->dma_dac.mapped)
1412                 return -ENXIO;
1413         if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
1414                 return ret;
1415         if (!access_ok(VERIFY_READ, buffer, count))
1416                 return -EFAULT;
1417         ret = 0;
1418 #if 0
1419         spin_lock_irqsave(&s->lock, flags);
1420         sv_update_ptr(s);
1421         spin_unlock_irqrestore(&s->lock, flags);
1422 #endif
1423         add_wait_queue(&s->dma_dac.wait, &wait);
1424         while (count > 0) {
1425                 spin_lock_irqsave(&s->lock, flags);
1426                 if (s->dma_dac.count < 0) {
1427                         s->dma_dac.count = 0;
1428                         s->dma_dac.swptr = s->dma_dac.hwptr;
1429                 }
1430                 swptr = s->dma_dac.swptr;
1431                 cnt = s->dma_dac.dmasize-swptr;
1432                 if (s->dma_dac.count + cnt > s->dma_dac.dmasize)
1433                         cnt = s->dma_dac.dmasize - s->dma_dac.count;
1434                 if (cnt <= 0)
1435                         __set_current_state(TASK_INTERRUPTIBLE);
1436                 spin_unlock_irqrestore(&s->lock, flags);
1437                 if (cnt > count)
1438                         cnt = count;
1439                 if (cnt <= 0) {
1440                         if (s->dma_dac.enabled)
1441                                 start_dac(s);
1442                         if (file->f_flags & O_NONBLOCK) {
1443                                 if (!ret)
1444                                         ret = -EAGAIN;
1445                                 break;
1446                         }
1447                         if (!schedule_timeout(HZ)) {
1448                                 printk(KERN_DEBUG "sv: write: chip lockup? dmasz %u fragsz %u count %i hwptr %u swptr %u\n",
1449                                        s->dma_dac.dmasize, s->dma_dac.fragsize, s->dma_dac.count,
1450                                        s->dma_dac.hwptr, s->dma_dac.swptr);
1451                                 stop_dac(s);
1452                                 spin_lock_irqsave(&s->lock, flags);
1453                                 set_dmaa(s, virt_to_bus(s->dma_dac.rawbuf), s->dma_dac.numfrag << s->dma_dac.fragshift);
1454                                 /* program enhanced mode registers */
1455                                 wrindir(s, SV_CIDMAABASECOUNT1, (s->dma_dac.fragsamples-1) >> 8);
1456                                 wrindir(s, SV_CIDMAABASECOUNT0, s->dma_dac.fragsamples-1);
1457                                 s->dma_dac.count = s->dma_dac.hwptr = s->dma_dac.swptr = 0;
1458                                 spin_unlock_irqrestore(&s->lock, flags);
1459                         }
1460                         if (signal_pending(current)) {
1461                                 if (!ret)
1462                                         ret = -ERESTARTSYS;
1463                                 break;
1464                         }
1465                         continue;
1466                 }
1467                 if (copy_from_user(s->dma_dac.rawbuf + swptr, buffer, cnt)) {
1468                         if (!ret)
1469                                 ret = -EFAULT;
1470                         break;
1471                 }
1472                 swptr = (swptr + cnt) % s->dma_dac.dmasize;
1473                 spin_lock_irqsave(&s->lock, flags);
1474                 s->dma_dac.swptr = swptr;
1475                 s->dma_dac.count += cnt;
1476                 s->dma_dac.endcleared = 0;
1477                 spin_unlock_irqrestore(&s->lock, flags);
1478                 count -= cnt;
1479                 buffer += cnt;
1480                 ret += cnt;
1481                 if (s->dma_dac.enabled)
1482                         start_dac(s);
1483         }
1484         remove_wait_queue(&s->dma_dac.wait, &wait);
1485         set_current_state(TASK_RUNNING);
1486         return ret;
1487 }
1488
1489 /* No kernel lock - we have our own spinlock */
1490 static unsigned int sv_poll(struct file *file, struct poll_table_struct *wait)
1491 {
1492         struct sv_state *s = (struct sv_state *)file->private_data;
1493         unsigned long flags;
1494         unsigned int mask = 0;
1495
1496         VALIDATE_STATE(s);
1497         if (file->f_mode & FMODE_WRITE) {
1498                 if (!s->dma_dac.ready && prog_dmabuf(s, 1))
1499                         return 0;
1500                 poll_wait(file, &s->dma_dac.wait, wait);
1501         }
1502         if (file->f_mode & FMODE_READ) {
1503                 if (!s->dma_adc.ready && prog_dmabuf(s, 0))
1504                         return 0;
1505                 poll_wait(file, &s->dma_adc.wait, wait);
1506         }
1507         spin_lock_irqsave(&s->lock, flags);
1508         sv_update_ptr(s);
1509         if (file->f_mode & FMODE_READ) {
1510                 if (s->dma_adc.count >= (signed)s->dma_adc.fragsize)
1511                         mask |= POLLIN | POLLRDNORM;
1512         }
1513         if (file->f_mode & FMODE_WRITE) {
1514                 if (s->dma_dac.mapped) {
1515                         if (s->dma_dac.count >= (signed)s->dma_dac.fragsize)
1516                                 mask |= POLLOUT | POLLWRNORM;
1517                 } else {
1518                         if ((signed)s->dma_dac.dmasize >= s->dma_dac.count + (signed)s->dma_dac.fragsize)
1519                                 mask |= POLLOUT | POLLWRNORM;
1520                 }
1521         }
1522         spin_unlock_irqrestore(&s->lock, flags);
1523         return mask;
1524 }
1525
1526 static int sv_mmap(struct file *file, struct vm_area_struct *vma)
1527 {
1528         struct sv_state *s = (struct sv_state *)file->private_data;
1529         struct dmabuf *db;
1530         int ret = -EINVAL;
1531         unsigned long size;
1532
1533         VALIDATE_STATE(s);
1534         lock_kernel();
1535         if (vma->vm_flags & VM_WRITE) {
1536                 if ((ret = prog_dmabuf(s, 1)) != 0)
1537                         goto out;
1538                 db = &s->dma_dac;
1539         } else if (vma->vm_flags & VM_READ) {
1540                 if ((ret = prog_dmabuf(s, 0)) != 0)
1541                         goto out;
1542                 db = &s->dma_adc;
1543         } else
1544                 goto out;
1545         ret = -EINVAL;
1546         if (vma->vm_pgoff != 0)
1547                 goto out;
1548         size = vma->vm_end - vma->vm_start;
1549         if (size > (PAGE_SIZE << db->buforder))
1550                 goto out;
1551         ret = -EAGAIN;
1552         if (remap_pfn_range(vma, vma->vm_start,
1553                                 virt_to_phys(db->rawbuf) >> PAGE_SHIFT,
1554                                 size, vma->vm_page_prot))
1555                 goto out;
1556         db->mapped = 1;
1557         ret = 0;
1558 out:
1559         unlock_kernel();
1560         return ret;
1561 }
1562
1563 static int sv_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
1564 {
1565         struct sv_state *s = (struct sv_state *)file->private_data;
1566         unsigned long flags;
1567         audio_buf_info abinfo;
1568         count_info cinfo;
1569         int count;
1570         int val, mapped, ret;
1571         unsigned char fmtm, fmtd;
1572         void __user *argp = (void __user *)arg;
1573         int __user *p = argp;
1574
1575         VALIDATE_STATE(s);
1576         mapped = ((file->f_mode & FMODE_WRITE) && s->dma_dac.mapped) ||
1577                 ((file->f_mode & FMODE_READ) && s->dma_adc.mapped);
1578         switch (cmd) {
1579         case OSS_GETVERSION:
1580                 return put_user(SOUND_VERSION, p);
1581
1582         case SNDCTL_DSP_SYNC:
1583                 if (file->f_mode & FMODE_WRITE)
1584                         return drain_dac(s, 0/*file->f_flags & O_NONBLOCK*/);
1585                 return 0;
1586
1587         case SNDCTL_DSP_SETDUPLEX:
1588                 return 0;
1589
1590         case SNDCTL_DSP_GETCAPS:
1591                 return put_user(DSP_CAP_DUPLEX | DSP_CAP_REALTIME | DSP_CAP_TRIGGER | DSP_CAP_MMAP, p);
1592
1593         case SNDCTL_DSP_RESET:
1594                 if (file->f_mode & FMODE_WRITE) {
1595                         stop_dac(s);
1596                         synchronize_irq(s->irq);
1597                         s->dma_dac.swptr = s->dma_dac.hwptr = s->dma_dac.count = s->dma_dac.total_bytes = 0;
1598                 }
1599                 if (file->f_mode & FMODE_READ) {
1600                         stop_adc(s);
1601                         synchronize_irq(s->irq);
1602                         s->dma_adc.swptr = s->dma_adc.hwptr = s->dma_adc.count = s->dma_adc.total_bytes = 0;
1603                 }
1604                 return 0;
1605
1606         case SNDCTL_DSP_SPEED:
1607                 if (get_user(val, p))
1608                         return -EFAULT;
1609                 if (val >= 0) {
1610                         if (file->f_mode & FMODE_READ) {
1611                                 stop_adc(s);
1612                                 s->dma_adc.ready = 0;
1613                                 set_adc_rate(s, val);
1614                         }
1615                         if (file->f_mode & FMODE_WRITE) {
1616                                 stop_dac(s);
1617                                 s->dma_dac.ready = 0;
1618                                 set_dac_rate(s, val);
1619                         }
1620                 }
1621                 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
1622
1623         case SNDCTL_DSP_STEREO:
1624                 if (get_user(val, p))
1625                         return -EFAULT;
1626                 fmtd = 0;
1627                 fmtm = ~0;
1628                 if (file->f_mode & FMODE_READ) {
1629                         stop_adc(s);
1630                         s->dma_adc.ready = 0;
1631                         if (val)
1632                                 fmtd |= SV_CFMT_STEREO << SV_CFMT_CSHIFT;
1633                         else
1634                                 fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_CSHIFT);
1635                 }
1636                 if (file->f_mode & FMODE_WRITE) {
1637                         stop_dac(s);
1638                         s->dma_dac.ready = 0;
1639                         if (val)
1640                                 fmtd |= SV_CFMT_STEREO << SV_CFMT_ASHIFT;
1641                         else
1642                                 fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_ASHIFT);
1643                 }
1644                 set_fmt(s, fmtm, fmtd);
1645                 return 0;
1646
1647         case SNDCTL_DSP_CHANNELS:
1648                 if (get_user(val, p))
1649                         return -EFAULT;
1650                 if (val != 0) {
1651                         fmtd = 0;
1652                         fmtm = ~0;
1653                         if (file->f_mode & FMODE_READ) {
1654                                 stop_adc(s);
1655                                 s->dma_adc.ready = 0;
1656                                 if (val >= 2)
1657                                         fmtd |= SV_CFMT_STEREO << SV_CFMT_CSHIFT;
1658                                 else
1659                                         fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_CSHIFT);
1660                         }
1661                         if (file->f_mode & FMODE_WRITE) {
1662                                 stop_dac(s);
1663                                 s->dma_dac.ready = 0;
1664                                 if (val >= 2)
1665                                         fmtd |= SV_CFMT_STEREO << SV_CFMT_ASHIFT;
1666                                 else
1667                                         fmtm &= ~(SV_CFMT_STEREO << SV_CFMT_ASHIFT);
1668                         }
1669                         set_fmt(s, fmtm, fmtd);
1670                 }
1671                 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_STEREO << SV_CFMT_CSHIFT)
1672                                            : (SV_CFMT_STEREO << SV_CFMT_ASHIFT))) ? 2 : 1, p);
1673
1674         case SNDCTL_DSP_GETFMTS: /* Returns a mask */
1675                 return put_user(AFMT_S16_LE|AFMT_U8, p);
1676
1677         case SNDCTL_DSP_SETFMT: /* Selects ONE fmt*/
1678                 if (get_user(val, p))
1679                         return -EFAULT;
1680                 if (val != AFMT_QUERY) {
1681                         fmtd = 0;
1682                         fmtm = ~0;
1683                         if (file->f_mode & FMODE_READ) {
1684                                 stop_adc(s);
1685                                 s->dma_adc.ready = 0;
1686                                 if (val == AFMT_S16_LE)
1687                                         fmtd |= SV_CFMT_16BIT << SV_CFMT_CSHIFT;
1688                                 else
1689                                         fmtm &= ~(SV_CFMT_16BIT << SV_CFMT_CSHIFT);
1690                         }
1691                         if (file->f_mode & FMODE_WRITE) {
1692                                 stop_dac(s);
1693                                 s->dma_dac.ready = 0;
1694                                 if (val == AFMT_S16_LE)
1695                                         fmtd |= SV_CFMT_16BIT << SV_CFMT_ASHIFT;
1696                                 else
1697                                         fmtm &= ~(SV_CFMT_16BIT << SV_CFMT_ASHIFT);
1698                         }
1699                         set_fmt(s, fmtm, fmtd);
1700                 }
1701                 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_16BIT << SV_CFMT_CSHIFT)
1702                                            : (SV_CFMT_16BIT << SV_CFMT_ASHIFT))) ? AFMT_S16_LE : AFMT_U8, p);
1703
1704         case SNDCTL_DSP_POST:
1705                 return 0;
1706
1707         case SNDCTL_DSP_GETTRIGGER:
1708                 val = 0;
1709                 if (file->f_mode & FMODE_READ && s->enable & SV_CENABLE_RE)
1710                         val |= PCM_ENABLE_INPUT;
1711                 if (file->f_mode & FMODE_WRITE && s->enable & SV_CENABLE_PE)
1712                         val |= PCM_ENABLE_OUTPUT;
1713                 return put_user(val, p);
1714
1715         case SNDCTL_DSP_SETTRIGGER:
1716                 if (get_user(val, p))
1717                         return -EFAULT;
1718                 if (file->f_mode & FMODE_READ) {
1719                         if (val & PCM_ENABLE_INPUT) {
1720                                 if (!s->dma_adc.ready && (ret =  prog_dmabuf(s, 1)))
1721                                         return ret;
1722                                 s->dma_adc.enabled = 1;
1723                                 start_adc(s);
1724                         } else {
1725                                 s->dma_adc.enabled = 0;
1726                                 stop_adc(s);
1727                         }
1728                 }
1729                 if (file->f_mode & FMODE_WRITE) {
1730                         if (val & PCM_ENABLE_OUTPUT) {
1731                                 if (!s->dma_dac.ready && (ret = prog_dmabuf(s, 0)))
1732                                         return ret;
1733                                 s->dma_dac.enabled = 1;
1734                                 start_dac(s);
1735                         } else {
1736                                 s->dma_dac.enabled = 0;
1737                                 stop_dac(s);
1738                         }
1739                 }
1740                 return 0;
1741
1742         case SNDCTL_DSP_GETOSPACE:
1743                 if (!(file->f_mode & FMODE_WRITE))
1744                         return -EINVAL;
1745                 if (!s->dma_dac.ready && (val = prog_dmabuf(s, 0)) != 0)
1746                         return val;
1747                 spin_lock_irqsave(&s->lock, flags);
1748                 sv_update_ptr(s);
1749                 abinfo.fragsize = s->dma_dac.fragsize;
1750                 count = s->dma_dac.count;
1751                 if (count < 0)
1752                         count = 0;
1753                 abinfo.bytes = s->dma_dac.dmasize - count;
1754                 abinfo.fragstotal = s->dma_dac.numfrag;
1755                 abinfo.fragments = abinfo.bytes >> s->dma_dac.fragshift;
1756                 spin_unlock_irqrestore(&s->lock, flags);
1757                 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1758
1759         case SNDCTL_DSP_GETISPACE:
1760                 if (!(file->f_mode & FMODE_READ))
1761                         return -EINVAL;
1762                 if (!s->dma_adc.ready && (val = prog_dmabuf(s, 1)) != 0)
1763                         return val;
1764                 spin_lock_irqsave(&s->lock, flags);
1765                 sv_update_ptr(s);
1766                 abinfo.fragsize = s->dma_adc.fragsize;
1767                 count = s->dma_adc.count;
1768                 if (count < 0)
1769                         count = 0;
1770                 abinfo.bytes = count;
1771                 abinfo.fragstotal = s->dma_adc.numfrag;
1772                 abinfo.fragments = abinfo.bytes >> s->dma_adc.fragshift;
1773                 spin_unlock_irqrestore(&s->lock, flags);
1774                 return copy_to_user(argp, &abinfo, sizeof(abinfo)) ? -EFAULT : 0;
1775
1776         case SNDCTL_DSP_NONBLOCK:
1777                 file->f_flags |= O_NONBLOCK;
1778                 return 0;
1779
1780         case SNDCTL_DSP_GETODELAY:
1781                 if (!(file->f_mode & FMODE_WRITE))
1782                         return -EINVAL;
1783                 if (!s->dma_dac.ready && (val = prog_dmabuf(s, 0)) != 0)
1784                         return val;
1785                 spin_lock_irqsave(&s->lock, flags);
1786                 sv_update_ptr(s);
1787                 count = s->dma_dac.count;
1788                 spin_unlock_irqrestore(&s->lock, flags);
1789                 if (count < 0)
1790                         count = 0;
1791                 return put_user(count, p);
1792
1793         case SNDCTL_DSP_GETIPTR:
1794                 if (!(file->f_mode & FMODE_READ))
1795                         return -EINVAL;
1796                 if (!s->dma_adc.ready && (val = prog_dmabuf(s, 1)) != 0)
1797                         return val;
1798                 spin_lock_irqsave(&s->lock, flags);
1799                 sv_update_ptr(s);
1800                 cinfo.bytes = s->dma_adc.total_bytes;
1801                 count = s->dma_adc.count;
1802                 if (count < 0)
1803                         count = 0;
1804                 cinfo.blocks = count >> s->dma_adc.fragshift;
1805                 cinfo.ptr = s->dma_adc.hwptr;
1806                 if (s->dma_adc.mapped)
1807                         s->dma_adc.count &= s->dma_adc.fragsize-1;
1808                 spin_unlock_irqrestore(&s->lock, flags);
1809                 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
1810                         return -EFAULT;
1811                 return 0;
1812
1813         case SNDCTL_DSP_GETOPTR:
1814                 if (!(file->f_mode & FMODE_WRITE))
1815                         return -EINVAL;
1816                 if (!s->dma_dac.ready && (val = prog_dmabuf(s, 0)) != 0)
1817                         return val;
1818                 spin_lock_irqsave(&s->lock, flags);
1819                 sv_update_ptr(s);
1820                 cinfo.bytes = s->dma_dac.total_bytes;
1821                 count = s->dma_dac.count;
1822                 if (count < 0)
1823                         count = 0;
1824                 cinfo.blocks = count >> s->dma_dac.fragshift;
1825                 cinfo.ptr = s->dma_dac.hwptr;
1826                 if (s->dma_dac.mapped)
1827                         s->dma_dac.count &= s->dma_dac.fragsize-1;
1828                 spin_unlock_irqrestore(&s->lock, flags);
1829                 if (copy_to_user(argp, &cinfo, sizeof(cinfo)))
1830                         return -EFAULT;
1831                 return 0;
1832
1833         case SNDCTL_DSP_GETBLKSIZE:
1834                 if (file->f_mode & FMODE_WRITE) {
1835                         if ((val = prog_dmabuf(s, 0)))
1836                                 return val;
1837                         return put_user(s->dma_dac.fragsize, p);
1838                 }
1839                 if ((val = prog_dmabuf(s, 1)))
1840                         return val;
1841                 return put_user(s->dma_adc.fragsize, p);
1842
1843         case SNDCTL_DSP_SETFRAGMENT:
1844                 if (get_user(val, p))
1845                         return -EFAULT;
1846                 if (file->f_mode & FMODE_READ) {
1847                         s->dma_adc.ossfragshift = val & 0xffff;
1848                         s->dma_adc.ossmaxfrags = (val >> 16) & 0xffff;
1849                         if (s->dma_adc.ossfragshift < 4)
1850                                 s->dma_adc.ossfragshift = 4;
1851                         if (s->dma_adc.ossfragshift > 15)
1852                                 s->dma_adc.ossfragshift = 15;
1853                         if (s->dma_adc.ossmaxfrags < 4)
1854                                 s->dma_adc.ossmaxfrags = 4;
1855                 }
1856                 if (file->f_mode & FMODE_WRITE) {
1857                         s->dma_dac.ossfragshift = val & 0xffff;
1858                         s->dma_dac.ossmaxfrags = (val >> 16) & 0xffff;
1859                         if (s->dma_dac.ossfragshift < 4)
1860                                 s->dma_dac.ossfragshift = 4;
1861                         if (s->dma_dac.ossfragshift > 15)
1862                                 s->dma_dac.ossfragshift = 15;
1863                         if (s->dma_dac.ossmaxfrags < 4)
1864                                 s->dma_dac.ossmaxfrags = 4;
1865                 }
1866                 return 0;
1867
1868         case SNDCTL_DSP_SUBDIVIDE:
1869                 if ((file->f_mode & FMODE_READ && s->dma_adc.subdivision) ||
1870                     (file->f_mode & FMODE_WRITE && s->dma_dac.subdivision))
1871                         return -EINVAL;
1872                 if (get_user(val, p))
1873                         return -EFAULT;
1874                 if (val != 1 && val != 2 && val != 4)
1875                         return -EINVAL;
1876                 if (file->f_mode & FMODE_READ)
1877                         s->dma_adc.subdivision = val;
1878                 if (file->f_mode & FMODE_WRITE)
1879                         s->dma_dac.subdivision = val;
1880                 return 0;
1881
1882         case SOUND_PCM_READ_RATE:
1883                 return put_user((file->f_mode & FMODE_READ) ? s->rateadc : s->ratedac, p);
1884
1885         case SOUND_PCM_READ_CHANNELS:
1886                 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_STEREO << SV_CFMT_CSHIFT)
1887                                            : (SV_CFMT_STEREO << SV_CFMT_ASHIFT))) ? 2 : 1, p);
1888
1889         case SOUND_PCM_READ_BITS:
1890                 return put_user((s->fmt & ((file->f_mode & FMODE_READ) ? (SV_CFMT_16BIT << SV_CFMT_CSHIFT)
1891                                            : (SV_CFMT_16BIT << SV_CFMT_ASHIFT))) ? 16 : 8, p);
1892
1893         case SOUND_PCM_WRITE_FILTER:
1894         case SNDCTL_DSP_SETSYNCRO:
1895         case SOUND_PCM_READ_FILTER:
1896                 return -EINVAL;
1897
1898         }
1899         return mixer_ioctl(s, cmd, arg);
1900 }
1901
1902 static int sv_open(struct inode *inode, struct file *file)
1903 {
1904         int minor = iminor(inode);
1905         DECLARE_WAITQUEUE(wait, current);
1906         unsigned char fmtm = ~0, fmts = 0;
1907         struct list_head *list;
1908         struct sv_state *s;
1909
1910         for (list = devs.next; ; list = list->next) {
1911                 if (list == &devs)
1912                         return -ENODEV;
1913                 s = list_entry(list, struct sv_state, devs);
1914                 if (!((s->dev_audio ^ minor) & ~0xf))
1915                         break;
1916         }
1917         VALIDATE_STATE(s);
1918         file->private_data = s;
1919         /* wait for device to become free */
1920         down(&s->open_sem);
1921         while (s->open_mode & file->f_mode) {
1922                 if (file->f_flags & O_NONBLOCK) {
1923                         up(&s->open_sem);
1924                         return -EBUSY;
1925                 }
1926                 add_wait_queue(&s->open_wait, &wait);
1927                 __set_current_state(TASK_INTERRUPTIBLE);
1928                 up(&s->open_sem);
1929                 schedule();
1930                 remove_wait_queue(&s->open_wait, &wait);
1931                 set_current_state(TASK_RUNNING);
1932                 if (signal_pending(current))
1933                         return -ERESTARTSYS;
1934                 down(&s->open_sem);
1935         }
1936         if (file->f_mode & FMODE_READ) {
1937                 fmtm &= ~((SV_CFMT_STEREO | SV_CFMT_16BIT) << SV_CFMT_CSHIFT);
1938                 if ((minor & 0xf) == SND_DEV_DSP16)
1939                         fmts |= SV_CFMT_16BIT << SV_CFMT_CSHIFT;
1940                 s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags = s->dma_adc.subdivision = 0;
1941                 s->dma_adc.enabled = 1;
1942                 set_adc_rate(s, 8000);
1943         }
1944         if (file->f_mode & FMODE_WRITE) {
1945                 fmtm &= ~((SV_CFMT_STEREO | SV_CFMT_16BIT) << SV_CFMT_ASHIFT);
1946                 if ((minor & 0xf) == SND_DEV_DSP16)
1947                         fmts |= SV_CFMT_16BIT << SV_CFMT_ASHIFT;
1948                 s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags = s->dma_dac.subdivision = 0;
1949                 s->dma_dac.enabled = 1;
1950                 set_dac_rate(s, 8000);
1951         }
1952         set_fmt(s, fmtm, fmts);
1953         s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
1954         up(&s->open_sem);
1955         return nonseekable_open(inode, file);
1956 }
1957
1958 static int sv_release(struct inode *inode, struct file *file)
1959 {
1960         struct sv_state *s = (struct sv_state *)file->private_data;
1961
1962         VALIDATE_STATE(s);
1963         lock_kernel();
1964         if (file->f_mode & FMODE_WRITE)
1965                 drain_dac(s, file->f_flags & O_NONBLOCK);
1966         down(&s->open_sem);
1967         if (file->f_mode & FMODE_WRITE) {
1968                 stop_dac(s);
1969                 dealloc_dmabuf(s, &s->dma_dac);
1970         }
1971         if (file->f_mode & FMODE_READ) {
1972                 stop_adc(s);
1973                 dealloc_dmabuf(s, &s->dma_adc);
1974         }
1975         s->open_mode &= ~(file->f_mode & (FMODE_READ|FMODE_WRITE));
1976         wake_up(&s->open_wait);
1977         up(&s->open_sem);
1978         unlock_kernel();
1979         return 0;
1980 }
1981
1982 static /*const*/ struct file_operations sv_audio_fops = {
1983         .owner          = THIS_MODULE,
1984         .llseek         = no_llseek,
1985         .read           = sv_read,
1986         .write          = sv_write,
1987         .poll           = sv_poll,
1988         .ioctl          = sv_ioctl,
1989         .mmap           = sv_mmap,
1990         .open           = sv_open,
1991         .release        = sv_release,
1992 };
1993
1994 /* --------------------------------------------------------------------- */
1995
1996 static ssize_t sv_midi_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos)
1997 {
1998         struct sv_state *s = (struct sv_state *)file->private_data;
1999         DECLARE_WAITQUEUE(wait, current);
2000         ssize_t ret;
2001         unsigned long flags;
2002         unsigned ptr;
2003         int cnt;
2004
2005         VALIDATE_STATE(s);
2006         if (!access_ok(VERIFY_WRITE, buffer, count))
2007                 return -EFAULT;
2008         if (count == 0)
2009                 return 0;
2010         ret = 0;
2011         add_wait_queue(&s->midi.iwait, &wait);
2012         while (count > 0) {
2013                 spin_lock_irqsave(&s->lock, flags);
2014                 ptr = s->midi.ird;
2015                 cnt = MIDIINBUF - ptr;
2016                 if (s->midi.icnt < cnt)
2017                         cnt = s->midi.icnt;
2018                 if (cnt <= 0)
2019                       __set_current_state(TASK_INTERRUPTIBLE);
2020                 spin_unlock_irqrestore(&s->lock, flags);
2021                 if (cnt > count)
2022                         cnt = count;
2023                 if (cnt <= 0) {
2024                       if (file->f_flags & O_NONBLOCK) {
2025                               if (!ret)
2026                                       ret = -EAGAIN;
2027                               break;
2028                       }
2029                       schedule();
2030                       if (signal_pending(current)) {
2031                               if (!ret)
2032                                       ret = -ERESTARTSYS;
2033                               break;
2034                       }
2035                         continue;
2036                 }
2037                 if (copy_to_user(buffer, s->midi.ibuf + ptr, cnt)) {
2038                         if (!ret)
2039                                 ret = -EFAULT;
2040                         break;
2041                 }
2042                 ptr = (ptr + cnt) % MIDIINBUF;
2043                 spin_lock_irqsave(&s->lock, flags);
2044                 s->midi.ird = ptr;
2045                 s->midi.icnt -= cnt;
2046                 spin_unlock_irqrestore(&s->lock, flags);
2047                 count -= cnt;
2048                 buffer += cnt;
2049                 ret += cnt;
2050                 break;
2051         }
2052         __set_current_state(TASK_RUNNING);
2053         remove_wait_queue(&s->midi.iwait, &wait);
2054         return ret;
2055 }
2056
2057 static ssize_t sv_midi_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos)
2058 {
2059         struct sv_state *s = (struct sv_state *)file->private_data;
2060         DECLARE_WAITQUEUE(wait, current);
2061         ssize_t ret;
2062         unsigned long flags;
2063         unsigned ptr;
2064         int cnt;
2065
2066         VALIDATE_STATE(s);
2067         if (!access_ok(VERIFY_READ, buffer, count))
2068                 return -EFAULT;
2069         if (count == 0)
2070                 return 0;
2071         ret = 0;
2072         add_wait_queue(&s->midi.owait, &wait);
2073         while (count > 0) {
2074                 spin_lock_irqsave(&s->lock, flags);
2075                 ptr = s->midi.owr;
2076                 cnt = MIDIOUTBUF - ptr;
2077                 if (s->midi.ocnt + cnt > MIDIOUTBUF)
2078                         cnt = MIDIOUTBUF - s->midi.ocnt;
2079                 if (cnt <= 0) {
2080                         __set_current_state(TASK_INTERRUPTIBLE);
2081                         sv_handle_midi(s);
2082                 }
2083                 spin_unlock_irqrestore(&s->lock, flags);
2084                 if (cnt > count)
2085                         cnt = count;
2086                 if (cnt <= 0) {
2087                         if (file->f_flags & O_NONBLOCK) {
2088                                 if (!ret)
2089                                         ret = -EAGAIN;
2090                                 break;
2091                         }
2092                         schedule();
2093                         if (signal_pending(current)) {
2094                                 if (!ret)
2095                                         ret = -ERESTARTSYS;
2096                                 break;
2097                         }
2098                         continue;
2099                 }
2100                 if (copy_from_user(s->midi.obuf + ptr, buffer, cnt)) {
2101                         if (!ret)
2102                                 ret = -EFAULT;
2103                         break;
2104                 }
2105                 ptr = (ptr + cnt) % MIDIOUTBUF;
2106                 spin_lock_irqsave(&s->lock, flags);
2107                 s->midi.owr = ptr;
2108                 s->midi.ocnt += cnt;
2109                 spin_unlock_irqrestore(&s->lock, flags);
2110                 count -= cnt;
2111                 buffer += cnt;
2112                 ret += cnt;
2113                 spin_lock_irqsave(&s->lock, flags);
2114                 sv_handle_midi(s);
2115                 spin_unlock_irqrestore(&s->lock, flags);
2116         }
2117         __set_current_state(TASK_RUNNING);
2118         remove_wait_queue(&s->midi.owait, &wait);
2119         return ret;
2120 }
2121
2122 /* No kernel lock - we have our own spinlock */
2123 static unsigned int sv_midi_poll(struct file *file, struct poll_table_struct *wait)
2124 {
2125         struct sv_state *s = (struct sv_state *)file->private_data;
2126         unsigned long flags;
2127         unsigned int mask = 0;
2128
2129         VALIDATE_STATE(s);
2130         if (file->f_mode & FMODE_WRITE)
2131                 poll_wait(file, &s->midi.owait, wait);
2132         if (file->f_mode & FMODE_READ)
2133                 poll_wait(file, &s->midi.iwait, wait);
2134         spin_lock_irqsave(&s->lock, flags);
2135         if (file->f_mode & FMODE_READ) {
2136                 if (s->midi.icnt > 0)
2137                         mask |= POLLIN | POLLRDNORM;
2138         }
2139         if (file->f_mode & FMODE_WRITE) {
2140                 if (s->midi.ocnt < MIDIOUTBUF)
2141                         mask |= POLLOUT | POLLWRNORM;
2142         }
2143         spin_unlock_irqrestore(&s->lock, flags);
2144         return mask;
2145 }
2146
2147 static int sv_midi_open(struct inode *inode, struct file *file)
2148 {
2149         int minor = iminor(inode);
2150         DECLARE_WAITQUEUE(wait, current);
2151         unsigned long flags;
2152         struct list_head *list;
2153         struct sv_state *s;
2154
2155         for (list = devs.next; ; list = list->next) {
2156                 if (list == &devs)
2157                         return -ENODEV;
2158                 s = list_entry(list, struct sv_state, devs);
2159                 if (s->dev_midi == minor)
2160                         break;
2161         }
2162         VALIDATE_STATE(s);
2163         file->private_data = s;
2164         /* wait for device to become free */
2165         down(&s->open_sem);
2166         while (s->open_mode & (file->f_mode << FMODE_MIDI_SHIFT)) {
2167                 if (file->f_flags & O_NONBLOCK) {
2168                         up(&s->open_sem);
2169                         return -EBUSY;
2170                 }
2171                 add_wait_queue(&s->open_wait, &wait);
2172                 __set_current_state(TASK_INTERRUPTIBLE);
2173                 up(&s->open_sem);
2174                 schedule();
2175                 remove_wait_queue(&s->open_wait, &wait);
2176                 set_current_state(TASK_RUNNING);
2177                 if (signal_pending(current))
2178                         return -ERESTARTSYS;
2179                 down(&s->open_sem);
2180         }
2181         spin_lock_irqsave(&s->lock, flags);
2182         if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2183                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2184                 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2185                 //outb(inb(s->ioenh + SV_CODEC_CONTROL) | SV_CCTRL_WAVETABLE, s->ioenh + SV_CODEC_CONTROL);
2186                 outb(inb(s->ioenh + SV_CODEC_INTMASK) | SV_CINTMASK_MIDI, s->ioenh + SV_CODEC_INTMASK);
2187                 wrindir(s, SV_CIUARTCONTROL, 5); /* output MIDI data to external and internal synth */
2188                 wrindir(s, SV_CIWAVETABLESRC, 1); /* Wavetable in PC RAM */
2189                 outb(0xff, s->iomidi+1); /* reset command */
2190                 outb(0x3f, s->iomidi+1); /* uart command */
2191                 if (!(inb(s->iomidi+1) & 0x80))
2192                         inb(s->iomidi);
2193                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2194                 init_timer(&s->midi.timer);
2195                 s->midi.timer.expires = jiffies+1;
2196                 s->midi.timer.data = (unsigned long)s;
2197                 s->midi.timer.function = sv_midi_timer;
2198                 add_timer(&s->midi.timer);
2199         }
2200         if (file->f_mode & FMODE_READ) {
2201                 s->midi.ird = s->midi.iwr = s->midi.icnt = 0;
2202         }
2203         if (file->f_mode & FMODE_WRITE) {
2204                 s->midi.ord = s->midi.owr = s->midi.ocnt = 0;
2205         }
2206         spin_unlock_irqrestore(&s->lock, flags);
2207         s->open_mode |= (file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ | FMODE_MIDI_WRITE);
2208         up(&s->open_sem);
2209         return nonseekable_open(inode, file);
2210 }
2211
2212 static int sv_midi_release(struct inode *inode, struct file *file)
2213 {
2214         struct sv_state *s = (struct sv_state *)file->private_data;
2215         DECLARE_WAITQUEUE(wait, current);
2216         unsigned long flags;
2217         unsigned count, tmo;
2218
2219         VALIDATE_STATE(s);
2220
2221         lock_kernel();
2222         if (file->f_mode & FMODE_WRITE) {
2223                 add_wait_queue(&s->midi.owait, &wait);
2224                 for (;;) {
2225                         __set_current_state(TASK_INTERRUPTIBLE);
2226                         spin_lock_irqsave(&s->lock, flags);
2227                         count = s->midi.ocnt;
2228                         spin_unlock_irqrestore(&s->lock, flags);
2229                         if (count <= 0)
2230                                 break;
2231                         if (signal_pending(current))
2232                                 break;
2233                         if (file->f_flags & O_NONBLOCK) {
2234                                 remove_wait_queue(&s->midi.owait, &wait);
2235                                 set_current_state(TASK_RUNNING);
2236                                 unlock_kernel();
2237                                 return -EBUSY;
2238                         }
2239                         tmo = (count * HZ) / 3100;
2240                         if (!schedule_timeout(tmo ? : 1) && tmo)
2241                                 printk(KERN_DEBUG "sv: midi timed out??\n");
2242                 }
2243                 remove_wait_queue(&s->midi.owait, &wait);
2244                 set_current_state(TASK_RUNNING);
2245         }
2246         down(&s->open_sem);
2247         s->open_mode &= ~((file->f_mode << FMODE_MIDI_SHIFT) & (FMODE_MIDI_READ|FMODE_MIDI_WRITE));
2248         spin_lock_irqsave(&s->lock, flags);
2249         if (!(s->open_mode & (FMODE_MIDI_READ | FMODE_MIDI_WRITE))) {
2250                 outb(inb(s->ioenh + SV_CODEC_INTMASK) & ~SV_CINTMASK_MIDI, s->ioenh + SV_CODEC_INTMASK);
2251                 del_timer(&s->midi.timer);
2252         }
2253         spin_unlock_irqrestore(&s->lock, flags);
2254         wake_up(&s->open_wait);
2255         up(&s->open_sem);
2256         unlock_kernel();
2257         return 0;
2258 }
2259
2260 static /*const*/ struct file_operations sv_midi_fops = {
2261         .owner          = THIS_MODULE,
2262         .llseek         = no_llseek,
2263         .read           = sv_midi_read,
2264         .write          = sv_midi_write,
2265         .poll           = sv_midi_poll,
2266         .open           = sv_midi_open,
2267         .release        = sv_midi_release,
2268 };
2269
2270 /* --------------------------------------------------------------------- */
2271
2272 static int sv_dmfm_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
2273 {
2274         static const unsigned char op_offset[18] = {
2275                 0x00, 0x01, 0x02, 0x03, 0x04, 0x05,
2276                 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
2277                 0x10, 0x11, 0x12, 0x13, 0x14, 0x15
2278         };
2279         struct sv_state *s = (struct sv_state *)file->private_data;
2280         struct dm_fm_voice v;
2281         struct dm_fm_note n;
2282         struct dm_fm_params p;
2283         unsigned int io;
2284         unsigned int regb;
2285
2286         switch (cmd) {
2287         case FM_IOCTL_RESET:
2288                 for (regb = 0xb0; regb < 0xb9; regb++) {
2289                         outb(regb, s->iosynth);
2290                         outb(0, s->iosynth+1);
2291                         outb(regb, s->iosynth+2);
2292                         outb(0, s->iosynth+3);
2293                 }
2294                 return 0;
2295
2296         case FM_IOCTL_PLAY_NOTE:
2297                 if (copy_from_user(&n, (void __user *)arg, sizeof(n)))
2298                         return -EFAULT;
2299                 if (n.voice >= 18)
2300                         return -EINVAL;
2301                 if (n.voice >= 9) {
2302                         regb = n.voice - 9;
2303                         io = s->iosynth+2;
2304                 } else {
2305                         regb = n.voice;
2306                         io = s->iosynth;
2307                 }
2308                 outb(0xa0 + regb, io);
2309                 outb(n.fnum & 0xff, io+1);
2310                 outb(0xb0 + regb, io);
2311                 outb(((n.fnum >> 8) & 3) | ((n.octave & 7) << 2) | ((n.key_on & 1) << 5), io+1);
2312                 return 0;
2313
2314         case FM_IOCTL_SET_VOICE:
2315                 if (copy_from_user(&v, (void __user *)arg, sizeof(v)))
2316                         return -EFAULT;
2317                 if (v.voice >= 18)
2318                         return -EINVAL;
2319                 regb = op_offset[v.voice];
2320                 io = s->iosynth + ((v.op & 1) << 1);
2321                 outb(0x20 + regb, io);
2322                 outb(((v.am & 1) << 7) | ((v.vibrato & 1) << 6) | ((v.do_sustain & 1) << 5) |
2323                      ((v.kbd_scale & 1) << 4) | (v.harmonic & 0xf), io+1);
2324                 outb(0x40 + regb, io);
2325                 outb(((v.scale_level & 0x3) << 6) | (v.volume & 0x3f), io+1);
2326                 outb(0x60 + regb, io);
2327                 outb(((v.attack & 0xf) << 4) | (v.decay & 0xf), io+1);
2328                 outb(0x80 + regb, io);
2329                 outb(((v.sustain & 0xf) << 4) | (v.release & 0xf), io+1);
2330                 outb(0xe0 + regb, io);
2331                 outb(v.waveform & 0x7, io+1);
2332                 if (n.voice >= 9) {
2333                         regb = n.voice - 9;
2334                         io = s->iosynth+2;
2335                 } else {
2336                         regb = n.voice;
2337                         io = s->iosynth;
2338                 }
2339                 outb(0xc0 + regb, io);
2340                 outb(((v.right & 1) << 5) | ((v.left & 1) << 4) | ((v.feedback & 7) << 1) |
2341                      (v.connection & 1), io+1);
2342                 return 0;
2343
2344         case FM_IOCTL_SET_PARAMS:
2345                 if (copy_from_user(&p, (void *__user )arg, sizeof(p)))
2346                         return -EFAULT;
2347                 outb(0x08, s->iosynth);
2348                 outb((p.kbd_split & 1) << 6, s->iosynth+1);
2349                 outb(0xbd, s->iosynth);
2350                 outb(((p.am_depth & 1) << 7) | ((p.vib_depth & 1) << 6) | ((p.rhythm & 1) << 5) | ((p.bass & 1) << 4) |
2351                      ((p.snare & 1) << 3) | ((p.tomtom & 1) << 2) | ((p.cymbal & 1) << 1) | (p.hihat & 1), s->iosynth+1);
2352                 return 0;
2353
2354         case FM_IOCTL_SET_OPL:
2355                 outb(4, s->iosynth+2);
2356                 outb(arg, s->iosynth+3);
2357                 return 0;
2358
2359         case FM_IOCTL_SET_MODE:
2360                 outb(5, s->iosynth+2);
2361                 outb(arg & 1, s->iosynth+3);
2362                 return 0;
2363
2364         default:
2365                 return -EINVAL;
2366         }
2367 }
2368
2369 static int sv_dmfm_open(struct inode *inode, struct file *file)
2370 {
2371         int minor = iminor(inode);
2372         DECLARE_WAITQUEUE(wait, current);
2373         struct list_head *list;
2374         struct sv_state *s;
2375
2376         for (list = devs.next; ; list = list->next) {
2377                 if (list == &devs)
2378                         return -ENODEV;
2379                 s = list_entry(list, struct sv_state, devs);
2380                 if (s->dev_dmfm == minor)
2381                         break;
2382         }
2383         VALIDATE_STATE(s);
2384         file->private_data = s;
2385         /* wait for device to become free */
2386         down(&s->open_sem);
2387         while (s->open_mode & FMODE_DMFM) {
2388                 if (file->f_flags & O_NONBLOCK) {
2389                         up(&s->open_sem);
2390                         return -EBUSY;
2391                 }
2392                 add_wait_queue(&s->open_wait, &wait);
2393                 __set_current_state(TASK_INTERRUPTIBLE);
2394                 up(&s->open_sem);
2395                 schedule();
2396                 remove_wait_queue(&s->open_wait, &wait);
2397                 set_current_state(TASK_RUNNING);
2398                 if (signal_pending(current))
2399                         return -ERESTARTSYS;
2400                 down(&s->open_sem);
2401         }
2402         /* init the stuff */
2403         outb(1, s->iosynth);
2404         outb(0x20, s->iosynth+1); /* enable waveforms */
2405         outb(4, s->iosynth+2);
2406         outb(0, s->iosynth+3);  /* no 4op enabled */
2407         outb(5, s->iosynth+2);
2408         outb(1, s->iosynth+3);  /* enable OPL3 */
2409         s->open_mode |= FMODE_DMFM;
2410         up(&s->open_sem);
2411         return nonseekable_open(inode, file);
2412 }
2413
2414 static int sv_dmfm_release(struct inode *inode, struct file *file)
2415 {
2416         struct sv_state *s = (struct sv_state *)file->private_data;
2417         unsigned int regb;
2418
2419         VALIDATE_STATE(s);
2420         lock_kernel();
2421         down(&s->open_sem);
2422         s->open_mode &= ~FMODE_DMFM;
2423         for (regb = 0xb0; regb < 0xb9; regb++) {
2424                 outb(regb, s->iosynth);
2425                 outb(0, s->iosynth+1);
2426                 outb(regb, s->iosynth+2);
2427                 outb(0, s->iosynth+3);
2428         }
2429         wake_up(&s->open_wait);
2430         up(&s->open_sem);
2431         unlock_kernel();
2432         return 0;
2433 }
2434
2435 static /*const*/ struct file_operations sv_dmfm_fops = {
2436         .owner          = THIS_MODULE,
2437         .llseek         = no_llseek,
2438         .ioctl          = sv_dmfm_ioctl,
2439         .open           = sv_dmfm_open,
2440         .release        = sv_dmfm_release,
2441 };
2442
2443 /* --------------------------------------------------------------------- */
2444
2445 /* maximum number of devices; only used for command line params */
2446 #define NR_DEVICE 5
2447
2448 static int reverb[NR_DEVICE];
2449
2450 #if 0
2451 static int wavetable[NR_DEVICE];
2452 #endif
2453
2454 static unsigned int devindex;
2455
2456 module_param_array(reverb, bool, NULL, 0);
2457 MODULE_PARM_DESC(reverb, "if 1 enables the reverb circuitry. NOTE: your card must have the reverb RAM");
2458 #if 0
2459 MODULE_PARM(wavetable, "1-" __MODULE_STRING(NR_DEVICE) "i");
2460 MODULE_PARM_DESC(wavetable, "if 1 the wavetable synth is enabled");
2461 #endif
2462
2463 MODULE_AUTHOR("Thomas M. Sailer, sailer@ife.ee.ethz.ch, hb9jnx@hb9w.che.eu");
2464 MODULE_DESCRIPTION("S3 SonicVibes Driver");
2465 MODULE_LICENSE("GPL");
2466
2467
2468 /* --------------------------------------------------------------------- */
2469
2470 static struct initvol {
2471         int mixch;
2472         int vol;
2473 } initvol[] __devinitdata = {
2474         { SOUND_MIXER_WRITE_RECLEV, 0x4040 },
2475         { SOUND_MIXER_WRITE_LINE1, 0x4040 },
2476         { SOUND_MIXER_WRITE_CD, 0x4040 },
2477         { SOUND_MIXER_WRITE_LINE, 0x4040 },
2478         { SOUND_MIXER_WRITE_MIC, 0x4040 },
2479         { SOUND_MIXER_WRITE_SYNTH, 0x4040 },
2480         { SOUND_MIXER_WRITE_LINE2, 0x4040 },
2481         { SOUND_MIXER_WRITE_VOLUME, 0x4040 },
2482         { SOUND_MIXER_WRITE_PCM, 0x4040 }
2483 };
2484
2485 #define RSRCISIOREGION(dev,num) (pci_resource_start((dev), (num)) != 0 && \
2486                                  (pci_resource_flags((dev), (num)) & IORESOURCE_IO))
2487
2488 static int __devinit sv_register_gameport(struct sv_state *s, int io_port)
2489 {
2490         struct gameport *gp;
2491
2492         if (!request_region(io_port, SV_EXTENT_GAME, "S3 SonicVibes Gameport")) {
2493                 printk(KERN_ERR "sv: gameport io ports are in use\n");
2494                 return -EBUSY;
2495         }
2496
2497         s->gameport = gp = gameport_allocate_port();
2498         if (!gp) {
2499                 printk(KERN_ERR "sv: can not allocate memory for gameport\n");
2500                 release_region(io_port, SV_EXTENT_GAME);
2501                 return -ENOMEM;
2502         }
2503
2504         gameport_set_name(gp, "S3 SonicVibes Gameport");
2505         gameport_set_phys(gp, "isa%04x/gameport0", io_port);
2506         gp->dev.parent = &s->dev->dev;
2507         gp->io = io_port;
2508
2509         gameport_register_port(gp);
2510
2511         return 0;
2512 }
2513
2514 static int __devinit sv_probe(struct pci_dev *pcidev, const struct pci_device_id *pciid)
2515 {
2516         static char __devinitdata sv_ddma_name[] = "S3 Inc. SonicVibes DDMA Controller";
2517         struct sv_state *s;
2518         mm_segment_t fs;
2519         int i, val, ret;
2520         int gpio;
2521         char *ddmaname;
2522         unsigned ddmanamelen;
2523
2524         if ((ret=pci_enable_device(pcidev)))
2525                 return ret;
2526
2527         if (!RSRCISIOREGION(pcidev, RESOURCE_SB) ||
2528             !RSRCISIOREGION(pcidev, RESOURCE_ENH) ||
2529             !RSRCISIOREGION(pcidev, RESOURCE_SYNTH) ||
2530             !RSRCISIOREGION(pcidev, RESOURCE_MIDI) ||
2531             !RSRCISIOREGION(pcidev, RESOURCE_GAME))
2532                 return -ENODEV;
2533         if (pcidev->irq == 0)
2534                 return -ENODEV;
2535         if (pci_set_dma_mask(pcidev, 0x00ffffff)) {
2536                 printk(KERN_WARNING "sonicvibes: architecture does not support 24bit PCI busmaster DMA\n");
2537                 return -ENODEV;
2538         }
2539         /* try to allocate a DDMA resource if not already available */
2540         if (!RSRCISIOREGION(pcidev, RESOURCE_DDMA)) {
2541                 pcidev->resource[RESOURCE_DDMA].start = 0;
2542                 pcidev->resource[RESOURCE_DDMA].end = 2*SV_EXTENT_DMA-1;
2543                 pcidev->resource[RESOURCE_DDMA].flags = PCI_BASE_ADDRESS_SPACE_IO | IORESOURCE_IO;
2544                 ddmanamelen = strlen(sv_ddma_name)+1;
2545                 if (!(ddmaname = kmalloc(ddmanamelen, GFP_KERNEL)))
2546                         return -1;
2547                 memcpy(ddmaname, sv_ddma_name, ddmanamelen);
2548                 pcidev->resource[RESOURCE_DDMA].name = ddmaname;
2549                 if (pci_assign_resource(pcidev, RESOURCE_DDMA)) {
2550                         pcidev->resource[RESOURCE_DDMA].name = NULL;
2551                         kfree(ddmaname);
2552                         printk(KERN_ERR "sv: cannot allocate DDMA controller io ports\n");
2553                         return -EBUSY;
2554                 }
2555         }
2556         if (!(s = kmalloc(sizeof(struct sv_state), GFP_KERNEL))) {
2557                 printk(KERN_WARNING "sv: out of memory\n");
2558                 return -ENOMEM;
2559         }
2560         memset(s, 0, sizeof(struct sv_state));
2561         init_waitqueue_head(&s->dma_adc.wait);
2562         init_waitqueue_head(&s->dma_dac.wait);
2563         init_waitqueue_head(&s->open_wait);
2564         init_waitqueue_head(&s->midi.iwait);
2565         init_waitqueue_head(&s->midi.owait);
2566         init_MUTEX(&s->open_sem);
2567         spin_lock_init(&s->lock);
2568         s->magic = SV_MAGIC;
2569         s->dev = pcidev;
2570         s->iosb = pci_resource_start(pcidev, RESOURCE_SB);
2571         s->ioenh = pci_resource_start(pcidev, RESOURCE_ENH);
2572         s->iosynth = pci_resource_start(pcidev, RESOURCE_SYNTH);
2573         s->iomidi = pci_resource_start(pcidev, RESOURCE_MIDI);
2574         s->iodmaa = pci_resource_start(pcidev, RESOURCE_DDMA);
2575         s->iodmac = pci_resource_start(pcidev, RESOURCE_DDMA) + SV_EXTENT_DMA;
2576         gpio = pci_resource_start(pcidev, RESOURCE_GAME);
2577         pci_write_config_dword(pcidev, 0x40, s->iodmaa | 9);  /* enable and use extended mode */
2578         pci_write_config_dword(pcidev, 0x48, s->iodmac | 9);  /* enable */
2579         printk(KERN_DEBUG "sv: io ports: %#lx %#lx %#lx %#lx %#x %#x %#x\n",
2580                s->iosb, s->ioenh, s->iosynth, s->iomidi, gpio, s->iodmaa, s->iodmac);
2581         s->irq = pcidev->irq;
2582
2583         /* hack */
2584         pci_write_config_dword(pcidev, 0x60, wavetable_mem >> 12);  /* wavetable base address */
2585
2586         ret = -EBUSY;
2587         if (!request_region(s->ioenh, SV_EXTENT_ENH, "S3 SonicVibes PCM")) {
2588                 printk(KERN_ERR "sv: io ports %#lx-%#lx in use\n", s->ioenh, s->ioenh+SV_EXTENT_ENH-1);
2589                 goto err_region5;
2590         }
2591         if (!request_region(s->iodmaa, SV_EXTENT_DMA, "S3 SonicVibes DMAA")) {
2592                 printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iodmaa, s->iodmaa+SV_EXTENT_DMA-1);
2593                 goto err_region4;
2594         }
2595         if (!request_region(s->iodmac, SV_EXTENT_DMA, "S3 SonicVibes DMAC")) {
2596                 printk(KERN_ERR "sv: io ports %#x-%#x in use\n", s->iodmac, s->iodmac+SV_EXTENT_DMA-1);
2597                 goto err_region3;
2598         }
2599         if (!request_region(s->iomidi, SV_EXTENT_MIDI, "S3 SonicVibes Midi")) {
2600                 printk(KERN_ERR "sv: io ports %#lx-%#lx in use\n", s->iomidi, s->iomidi+SV_EXTENT_MIDI-1);
2601                 goto err_region2;
2602         }
2603         if (!request_region(s->iosynth, SV_EXTENT_SYNTH, "S3 SonicVibes Synth")) {
2604                 printk(KERN_ERR "sv: io ports %#lx-%#lx in use\n", s->iosynth, s->iosynth+SV_EXTENT_SYNTH-1);
2605                 goto err_region1;
2606         }
2607
2608         /* initialize codec registers */
2609         outb(0x80, s->ioenh + SV_CODEC_CONTROL); /* assert reset */
2610         udelay(50);
2611         outb(0x00, s->ioenh + SV_CODEC_CONTROL); /* deassert reset */
2612         udelay(50);
2613         outb(SV_CCTRL_INTADRIVE | SV_CCTRL_ENHANCED /*| SV_CCTRL_WAVETABLE */
2614              | (reverb[devindex] ? SV_CCTRL_REVERB : 0), s->ioenh + SV_CODEC_CONTROL);
2615         inb(s->ioenh + SV_CODEC_STATUS); /* clear ints */
2616         wrindir(s, SV_CIDRIVECONTROL, 0);  /* drive current 16mA */
2617         wrindir(s, SV_CIENABLE, s->enable = 0);  /* disable DMAA and DMAC */
2618         outb(~(SV_CINTMASK_DMAA | SV_CINTMASK_DMAC), s->ioenh + SV_CODEC_INTMASK);
2619         /* outb(0xff, s->iodmaa + SV_DMA_RESET); */
2620         /* outb(0xff, s->iodmac + SV_DMA_RESET); */
2621         inb(s->ioenh + SV_CODEC_STATUS); /* ack interrupts */
2622         wrindir(s, SV_CIADCCLKSOURCE, 0); /* use pll as ADC clock source */
2623         wrindir(s, SV_CIANALOGPWRDOWN, 0); /* power up the analog parts of the device */
2624         wrindir(s, SV_CIDIGITALPWRDOWN, 0); /* power up the digital parts of the device */
2625         setpll(s, SV_CIADCPLLM, 8000);
2626         wrindir(s, SV_CISRSSPACE, 0x80); /* SRS off */
2627         wrindir(s, SV_CIPCMSR0, (8000 * 65536 / FULLRATE) & 0xff);
2628         wrindir(s, SV_CIPCMSR1, ((8000 * 65536 / FULLRATE) >> 8) & 0xff);
2629         wrindir(s, SV_CIADCOUTPUT, 0);
2630         /* request irq */
2631         if ((ret=request_irq(s->irq,sv_interrupt,SA_SHIRQ,"S3 SonicVibes",s))) {
2632                 printk(KERN_ERR "sv: irq %u in use\n", s->irq);
2633                 goto err_irq;
2634         }
2635         printk(KERN_INFO "sv: found adapter at io %#lx irq %u dmaa %#06x dmac %#06x revision %u\n",
2636                s->ioenh, s->irq, s->iodmaa, s->iodmac, rdindir(s, SV_CIREVISION));
2637         /* register devices */
2638         if ((s->dev_audio = register_sound_dsp(&sv_audio_fops, -1)) < 0) {
2639                 ret = s->dev_audio;
2640                 goto err_dev1;
2641         }
2642         if ((s->dev_mixer = register_sound_mixer(&sv_mixer_fops, -1)) < 0) {
2643                 ret = s->dev_mixer;
2644                 goto err_dev2;
2645         }
2646         if ((s->dev_midi = register_sound_midi(&sv_midi_fops, -1)) < 0) {
2647                 ret = s->dev_midi;
2648                 goto err_dev3;
2649         }
2650         if ((s->dev_dmfm = register_sound_special(&sv_dmfm_fops, 15 /* ?? */)) < 0) {
2651                 ret = s->dev_dmfm;
2652                 goto err_dev4;
2653         }
2654         pci_set_master(pcidev);  /* enable bus mastering */
2655         /* initialize the chips */
2656         fs = get_fs();
2657         set_fs(KERNEL_DS);
2658         val = SOUND_MASK_LINE|SOUND_MASK_SYNTH;
2659         mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long)&val);
2660         for (i = 0; i < sizeof(initvol)/sizeof(initvol[0]); i++) {
2661                 val = initvol[i].vol;
2662                 mixer_ioctl(s, initvol[i].mixch, (unsigned long)&val);
2663         }
2664         set_fs(fs);
2665         /* register gameport */
2666         sv_register_gameport(s, gpio);
2667         /* store it in the driver field */
2668         pci_set_drvdata(pcidev, s);
2669         /* put it into driver list */
2670         list_add_tail(&s->devs, &devs);
2671         /* increment devindex */
2672         if (devindex < NR_DEVICE-1)
2673                 devindex++;
2674         return 0;
2675
2676  err_dev4:
2677         unregister_sound_midi(s->dev_midi);
2678  err_dev3:
2679         unregister_sound_mixer(s->dev_mixer);
2680  err_dev2:
2681         unregister_sound_dsp(s->dev_audio);
2682  err_dev1:
2683         printk(KERN_ERR "sv: cannot register misc device\n");
2684         free_irq(s->irq, s);
2685  err_irq:
2686         release_region(s->iosynth, SV_EXTENT_SYNTH);
2687  err_region1:
2688         release_region(s->iomidi, SV_EXTENT_MIDI);
2689  err_region2:
2690         release_region(s->iodmac, SV_EXTENT_DMA);
2691  err_region3:
2692         release_region(s->iodmaa, SV_EXTENT_DMA);
2693  err_region4:
2694         release_region(s->ioenh, SV_EXTENT_ENH);
2695  err_region5:
2696         kfree(s);
2697         return ret;
2698 }
2699
2700 static void __devexit sv_remove(struct pci_dev *dev)
2701 {
2702         struct sv_state *s = pci_get_drvdata(dev);
2703
2704         if (!s)
2705                 return;
2706         list_del(&s->devs);
2707         outb(~0, s->ioenh + SV_CODEC_INTMASK);  /* disable ints */
2708         synchronize_irq(s->irq);
2709         inb(s->ioenh + SV_CODEC_STATUS); /* ack interrupts */
2710         wrindir(s, SV_CIENABLE, 0);     /* disable DMAA and DMAC */
2711         /*outb(0, s->iodmaa + SV_DMA_RESET);*/
2712         /*outb(0, s->iodmac + SV_DMA_RESET);*/
2713         free_irq(s->irq, s);
2714         if (s->gameport) {
2715                 int gpio = s->gameport->io;
2716                 gameport_unregister_port(s->gameport);
2717                 release_region(gpio, SV_EXTENT_GAME);
2718         }
2719         release_region(s->iodmac, SV_EXTENT_DMA);
2720         release_region(s->iodmaa, SV_EXTENT_DMA);
2721         release_region(s->ioenh, SV_EXTENT_ENH);
2722         release_region(s->iomidi, SV_EXTENT_MIDI);
2723         release_region(s->iosynth, SV_EXTENT_SYNTH);
2724         unregister_sound_dsp(s->dev_audio);
2725         unregister_sound_mixer(s->dev_mixer);
2726         unregister_sound_midi(s->dev_midi);
2727         unregister_sound_special(s->dev_dmfm);
2728         kfree(s);
2729         pci_set_drvdata(dev, NULL);
2730 }
2731
2732 static struct pci_device_id id_table[] = {
2733        { PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_SONICVIBES, PCI_ANY_ID, PCI_ANY_ID, 0, 0 },
2734        { 0, }
2735 };
2736
2737 MODULE_DEVICE_TABLE(pci, id_table);
2738
2739 static struct pci_driver sv_driver = {
2740        .name            = "sonicvibes",
2741        .id_table        = id_table,
2742        .probe           = sv_probe,
2743        .remove          = __devexit_p(sv_remove),
2744 };
2745
2746 static int __init init_sonicvibes(void)
2747 {
2748         printk(KERN_INFO "sv: version v0.31 time " __TIME__ " " __DATE__ "\n");
2749 #if 0
2750         if (!(wavetable_mem = __get_free_pages(GFP_KERNEL, 20-PAGE_SHIFT)))
2751                 printk(KERN_INFO "sv: cannot allocate 1MB of contiguous nonpageable memory for wavetable data\n");
2752 #endif
2753         return pci_module_init(&sv_driver);
2754 }
2755
2756 static void __exit cleanup_sonicvibes(void)
2757 {
2758         printk(KERN_INFO "sv: unloading\n");
2759         pci_unregister_driver(&sv_driver);
2760         if (wavetable_mem)
2761                 free_pages(wavetable_mem, 20-PAGE_SHIFT);
2762 }
2763
2764 module_init(init_sonicvibes);
2765 module_exit(cleanup_sonicvibes);
2766
2767 /* --------------------------------------------------------------------- */
2768
2769 #ifndef MODULE
2770
2771 /* format is: sonicvibes=[reverb] sonicvibesdmaio=dmaioaddr */
2772
2773 static int __init sonicvibes_setup(char *str)
2774 {
2775         static unsigned __initdata nr_dev = 0;
2776
2777         if (nr_dev >= NR_DEVICE)
2778                 return 0;
2779 #if 0
2780         if (get_option(&str, &reverb[nr_dev]) == 2)
2781                 (void)get_option(&str, &wavetable[nr_dev]);
2782 #else
2783         (void)get_option(&str, &reverb[nr_dev]);
2784 #endif
2785
2786         nr_dev++;
2787         return 1;
2788 }
2789
2790 __setup("sonicvibes=", sonicvibes_setup);
2791
2792 #endif /* MODULE */