sound/pci/trident/trident_main.c

   1 /*
   2  *  Maintained by Jaroslav Kysela <perex@suse.cz>
   3  *  Originated by audio@tridentmicro.com
   4  *  Fri Feb 19 15:55:28 MST 1999
   5  *  Routines for control of Trident 4DWave (DX and NX) chip
   6  *
   7  *  BUGS:
   8  *
   9  *  TODO:
  10  *    ---
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public License as published by
  14  *   the Free Software Foundation; either version 2 of the License, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public License for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public License
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  25  *
  26  *
  27  *  SiS7018 S/PDIF support by Thomas Winischhofer <thomas@winischhofer.net>
  28  */
  29
  30 #include <sound/driver.h>
  31 #include <linux/delay.h>
  32 #include <linux/init.h>
  33 #include <linux/interrupt.h>
  34 #include <linux/pci.h>
  35 #include <linux/slab.h>
  36 #include <linux/vmalloc.h>
  37 #include <linux/gameport.h>
  38 #include <linux/dma-mapping.h>
  39
  40 #include <sound/core.h>
  41 #include <sound/info.h>
  42 #include <sound/control.h>
  43 #include <sound/tlv.h>
  44 #include <sound/trident.h>
  45 #include <sound/asoundef.h>
  46
  47 #include <asm/io.h>
  48
  49 static int snd_trident_pcm_mixer_build(struct snd_trident *trident,
  50                                        struct snd_trident_voice * voice,
  51                                        struct snd_pcm_substream *substream);
  52 static int snd_trident_pcm_mixer_free(struct snd_trident *trident,
  53                                       struct snd_trident_voice * voice,
  54                                       struct snd_pcm_substream *substream);
  55 static irqreturn_t snd_trident_interrupt(int irq, void *dev_id);
  56 static int snd_trident_sis_reset(struct snd_trident *trident);
  57
  58 static void snd_trident_clear_voices(struct snd_trident * trident,
  59                                      unsigned short v_min, unsigned short v_max);
  60 static int snd_trident_free(struct snd_trident *trident);
  61
  62 /*
  63  *  common I/O routines
  64  */
  65
  66
  67 #if 0
  68 static void snd_trident_print_voice_regs(struct snd_trident *trident, int voice)
  69 {
  70         unsigned int val, tmp;
  71
  72         printk("Trident voice %i:\n", voice);
  73         outb(voice, TRID_REG(trident, T4D_LFO_GC_CIR));
  74         val = inl(TRID_REG(trident, CH_LBA));
  75         printk("LBA: 0x%x\n", val);
  76         val = inl(TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));
  77         printk("GVSel: %i\n", val >> 31);
  78         printk("Pan: 0x%x\n", (val >> 24) & 0x7f);
  79         printk("Vol: 0x%x\n", (val >> 16) & 0xff);
  80         printk("CTRL: 0x%x\n", (val >> 12) & 0x0f);
  81         printk("EC: 0x%x\n", val & 0x0fff);
  82         if (trident->device != TRIDENT_DEVICE_ID_NX) {
  83                 val = inl(TRID_REG(trident, CH_DX_CSO_ALPHA_FMS));
  84                 printk("CSO: 0x%x\n", val >> 16);
  85                 printk("Alpha: 0x%x\n", (val >> 4) & 0x0fff);
  86                 printk("FMS: 0x%x\n", val & 0x0f);
  87                 val = inl(TRID_REG(trident, CH_DX_ESO_DELTA));
  88                 printk("ESO: 0x%x\n", val >> 16);
  89                 printk("Delta: 0x%x\n", val & 0xffff);
  90                 val = inl(TRID_REG(trident, CH_DX_FMC_RVOL_CVOL));
  91         } else {                // TRIDENT_DEVICE_ID_NX
  92                 val = inl(TRID_REG(trident, CH_NX_DELTA_CSO));
  93                 tmp = (val >> 24) & 0xff;
  94                 printk("CSO: 0x%x\n", val & 0x00ffffff);
  95                 val = inl(TRID_REG(trident, CH_NX_DELTA_ESO));
  96                 tmp |= (val >> 16) & 0xff00;
  97                 printk("Delta: 0x%x\n", tmp);
  98                 printk("ESO: 0x%x\n", val & 0x00ffffff);
  99                 val = inl(TRID_REG(trident, CH_NX_ALPHA_FMS_FMC_RVOL_CVOL));
 100                 printk("Alpha: 0x%x\n", val >> 20);
 101                 printk("FMS: 0x%x\n", (val >> 16) & 0x0f);
 102         }
 103         printk("FMC: 0x%x\n", (val >> 14) & 3);
 104         printk("RVol: 0x%x\n", (val >> 7) & 0x7f);
 105         printk("CVol: 0x%x\n", val & 0x7f);
 106 }
 107 #endif
 108
 109 /*---------------------------------------------------------------------------
 110    unsigned short snd_trident_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 111
 112    Description: This routine will do all of the reading from the external
 113                 CODEC (AC97).
 114
 115    Parameters:  ac97 - ac97 codec structure
 116                 reg - CODEC register index, from AC97 Hal.
 117
 118    returns:     16 bit value read from the AC97.
 119
 120   ---------------------------------------------------------------------------*/
 121 static unsigned short snd_trident_codec_read(struct snd_ac97 *ac97, unsigned short reg)
 122 {
 123         unsigned int data = 0, treg;
 124         unsigned short count = 0xffff;
 125         unsigned long flags;
 126         struct snd_trident *trident = ac97->private_data;
 127
 128         spin_lock_irqsave(&trident->reg_lock, flags);
 129         if (trident->device == TRIDENT_DEVICE_ID_DX) {
 130                 data = (DX_AC97_BUSY_READ | (reg & 0x000000ff));
 131                 outl(data, TRID_REG(trident, DX_ACR1_AC97_R));
 132                 do {
 133                         data = inl(TRID_REG(trident, DX_ACR1_AC97_R));
 134                         if ((data & DX_AC97_BUSY_READ) == 0)
 135                                 break;
 136                 } while (--count);
 137         } else if (trident->device == TRIDENT_DEVICE_ID_NX) {
 138                 data = (NX_AC97_BUSY_READ | (reg & 0x000000ff));
 139                 treg = ac97->num == 0 ? NX_ACR2_AC97_R_PRIMARY : NX_ACR3_AC97_R_SECONDARY;
 140                 outl(data, TRID_REG(trident, treg));
 141                 do {
 142                         data = inl(TRID_REG(trident, treg));
 143                         if ((data & 0x00000C00) == 0)
 144                                 break;
 145                 } while (--count);
 146         } else if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
 147                 data = SI_AC97_BUSY_READ | SI_AC97_AUDIO_BUSY | (reg & 0x000000ff);
 148                 if (ac97->num == 1)
 149                         data |= SI_AC97_SECONDARY;
 150                 outl(data, TRID_REG(trident, SI_AC97_READ));
 151                 do {
 152                         data = inl(TRID_REG(trident, SI_AC97_READ));
 153                         if ((data & (SI_AC97_BUSY_READ)) == 0)
 154                                 break;
 155                 } while (--count);
 156         }
 157
 158         if (count == 0 && !trident->ac97_detect) {
 159                 snd_printk(KERN_ERR "ac97 codec read TIMEOUT [0x%x/0x%x]!!!\n",
 160                            reg, data);
 161                 data = 0;
 162         }
 163
 164         spin_unlock_irqrestore(&trident->reg_lock, flags);
 165         return ((unsigned short) (data >> 16));
 166 }
 167
 168 /*---------------------------------------------------------------------------
 169    void snd_trident_codec_write(struct snd_ac97 *ac97, unsigned short reg,
 170    unsigned short wdata)
 171
 172    Description: This routine will do all of the writing to the external
 173                 CODEC (AC97).
 174
 175    Parameters:  ac97 - ac97 codec structure
 176                 reg - CODEC register index, from AC97 Hal.
 177                 data  - Lower 16 bits are the data to write to CODEC.
 178
 179    returns:     TRUE if everything went ok, else FALSE.
 180
 181   ---------------------------------------------------------------------------*/
 182 static void snd_trident_codec_write(struct snd_ac97 *ac97, unsigned short reg,
 183                                     unsigned short wdata)
 184 {
 185         unsigned int address, data;
 186         unsigned short count = 0xffff;
 187         unsigned long flags;
 188         struct snd_trident *trident = ac97->private_data;
 189
 190         data = ((unsigned long) wdata) << 16;
 191
 192         spin_lock_irqsave(&trident->reg_lock, flags);
 193         if (trident->device == TRIDENT_DEVICE_ID_DX) {
 194                 address = DX_ACR0_AC97_W;
 195
 196                 /* read AC-97 write register status */
 197                 do {
 198                         if ((inw(TRID_REG(trident, address)) & DX_AC97_BUSY_WRITE) == 0)
 199                                 break;
 200                 } while (--count);
 201
 202                 data |= (DX_AC97_BUSY_WRITE | (reg & 0x000000ff));
 203         } else if (trident->device == TRIDENT_DEVICE_ID_NX) {
 204                 address = NX_ACR1_AC97_W;
 205
 206                 /* read AC-97 write register status */
 207                 do {
 208                         if ((inw(TRID_REG(trident, address)) & NX_AC97_BUSY_WRITE) == 0)
 209                                 break;
 210                 } while (--count);
 211
 212                 data |= (NX_AC97_BUSY_WRITE | (ac97->num << 8) | (reg & 0x000000ff));
 213         } else if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
 214                 address = SI_AC97_WRITE;
 215
 216                 /* read AC-97 write register status */
 217                 do {
 218                         if ((inw(TRID_REG(trident, address)) & (SI_AC97_BUSY_WRITE)) == 0)
 219                                 break;
 220                 } while (--count);
 221
 222                 data |= SI_AC97_BUSY_WRITE | SI_AC97_AUDIO_BUSY | (reg & 0x000000ff);
 223                 if (ac97->num == 1)
 224                         data |= SI_AC97_SECONDARY;
 225         } else {
 226                 address = 0;    /* keep GCC happy */
 227                 count = 0;      /* return */
 228         }
 229
 230         if (count == 0) {
 231                 spin_unlock_irqrestore(&trident->reg_lock, flags);
 232                 return;
 233         }
 234         outl(data, TRID_REG(trident, address));
 235         spin_unlock_irqrestore(&trident->reg_lock, flags);
 236 }
 237
 238 /*---------------------------------------------------------------------------
 239    void snd_trident_enable_eso(struct snd_trident *trident)
 240
 241    Description: This routine will enable end of loop interrupts.
 242                 End of loop interrupts will occur when a running
 243                 channel reaches ESO.
 244                 Also enables middle of loop interrupts.
 245
 246    Parameters:  trident - pointer to target device class for 4DWave.
 247
 248   ---------------------------------------------------------------------------*/
 249
 250 static void snd_trident_enable_eso(struct snd_trident * trident)
 251 {
 252         unsigned int val;
 253
 254         val = inl(TRID_REG(trident, T4D_LFO_GC_CIR));
 255         val |= ENDLP_IE;
 256         val |= MIDLP_IE;
 257         if (trident->device == TRIDENT_DEVICE_ID_SI7018)
 258                 val |= BANK_B_EN;
 259         outl(val, TRID_REG(trident, T4D_LFO_GC_CIR));
 260 }
 261
 262 /*---------------------------------------------------------------------------
 263    void snd_trident_disable_eso(struct snd_trident *trident)
 264
 265    Description: This routine will disable end of loop interrupts.
 266                 End of loop interrupts will occur when a running
 267                 channel reaches ESO.
 268                 Also disables middle of loop interrupts.
 269
 270    Parameters:
 271                 trident - pointer to target device class for 4DWave.
 272
 273    returns:     TRUE if everything went ok, else FALSE.
 274
 275   ---------------------------------------------------------------------------*/
 276
 277 static void snd_trident_disable_eso(struct snd_trident * trident)
 278 {
 279         unsigned int tmp;
 280
 281         tmp = inl(TRID_REG(trident, T4D_LFO_GC_CIR));
 282         tmp &= ~ENDLP_IE;
 283         tmp &= ~MIDLP_IE;
 284         outl(tmp, TRID_REG(trident, T4D_LFO_GC_CIR));
 285 }
 286
 287 /*---------------------------------------------------------------------------
 288    void snd_trident_start_voice(struct snd_trident * trident, unsigned int voice)
 289
 290     Description: Start a voice, any channel 0 thru 63.
 291                  This routine automatically handles the fact that there are
 292                  more than 32 channels available.
 293
 294     Parameters : voice - Voice number 0 thru n.
 295                  trident - pointer to target device class for 4DWave.
 296
 297     Return Value: None.
 298
 299   ---------------------------------------------------------------------------*/
 300
 301 void snd_trident_start_voice(struct snd_trident * trident, unsigned int voice)
 302 {
 303         unsigned int mask = 1 << (voice & 0x1f);
 304         unsigned int reg = (voice & 0x20) ? T4D_START_B : T4D_START_A;
 305
 306         outl(mask, TRID_REG(trident, reg));
 307 }
 308
 309 EXPORT_SYMBOL(snd_trident_start_voice);
 310
 311 /*---------------------------------------------------------------------------
 312    void snd_trident_stop_voice(struct snd_trident * trident, unsigned int voice)
 313
 314     Description: Stop a voice, any channel 0 thru 63.
 315                  This routine automatically handles the fact that there are
 316                  more than 32 channels available.
 317
 318     Parameters : voice - Voice number 0 thru n.
 319                  trident - pointer to target device class for 4DWave.
 320
 321     Return Value: None.
 322
 323   ---------------------------------------------------------------------------*/
 324
 325 void snd_trident_stop_voice(struct snd_trident * trident, unsigned int voice)
 326 {
 327         unsigned int mask = 1 << (voice & 0x1f);
 328         unsigned int reg = (voice & 0x20) ? T4D_STOP_B : T4D_STOP_A;
 329
 330         outl(mask, TRID_REG(trident, reg));
 331 }
 332
 333 EXPORT_SYMBOL(snd_trident_stop_voice);
 334
 335 /*---------------------------------------------------------------------------
 336     int snd_trident_allocate_pcm_channel(struct snd_trident *trident)
 337
 338     Description: Allocate hardware channel in Bank B (32-63).
 339
 340     Parameters :  trident - pointer to target device class for 4DWave.
 341
 342     Return Value: hardware channel - 32-63 or -1 when no channel is available
 343
 344   ---------------------------------------------------------------------------*/
 345
 346 static int snd_trident_allocate_pcm_channel(struct snd_trident * trident)
 347 {
 348         int idx;
 349
 350         if (trident->ChanPCMcnt >= trident->ChanPCM)
 351                 return -1;
 352         for (idx = 31; idx >= 0; idx--) {
 353                 if (!(trident->ChanMap[T4D_BANK_B] & (1 << idx))) {
 354                         trident->ChanMap[T4D_BANK_B] |= 1 << idx;
 355                         trident->ChanPCMcnt++;
 356                         return idx + 32;
 357                 }
 358         }
 359         return -1;
 360 }
 361
 362 /*---------------------------------------------------------------------------
 363     void snd_trident_free_pcm_channel(int channel)
 364
 365     Description: Free hardware channel in Bank B (32-63)
 366
 367     Parameters :  trident - pointer to target device class for 4DWave.
 368                   channel - hardware channel number 0-63
 369
 370     Return Value: none
 371
 372   ---------------------------------------------------------------------------*/
 373
 374 static void snd_trident_free_pcm_channel(struct snd_trident *trident, int channel)
 375 {
 376         if (channel < 32 || channel > 63)
 377                 return;
 378         channel &= 0x1f;
 379         if (trident->ChanMap[T4D_BANK_B] & (1 << channel)) {
 380                 trident->ChanMap[T4D_BANK_B] &= ~(1 << channel);
 381                 trident->ChanPCMcnt--;
 382         }
 383 }
 384
 385 /*---------------------------------------------------------------------------
 386     unsigned int snd_trident_allocate_synth_channel(void)
 387
 388     Description: Allocate hardware channel in Bank A (0-31).
 389
 390     Parameters :  trident - pointer to target device class for 4DWave.
 391
 392     Return Value: hardware channel - 0-31 or -1 when no channel is available
 393
 394   ---------------------------------------------------------------------------*/
 395
 396 static int snd_trident_allocate_synth_channel(struct snd_trident * trident)
 397 {
 398         int idx;
 399
 400         for (idx = 31; idx >= 0; idx--) {
 401                 if (!(trident->ChanMap[T4D_BANK_A] & (1 << idx))) {
 402                         trident->ChanMap[T4D_BANK_A] |= 1 << idx;
 403                         trident->synth.ChanSynthCount++;
 404                         return idx;
 405                 }
 406         }
 407         return -1;
 408 }
 409
 410 /*---------------------------------------------------------------------------
 411     void snd_trident_free_synth_channel( int channel )
 412
 413     Description: Free hardware channel in Bank B (0-31).
 414
 415     Parameters :  trident - pointer to target device class for 4DWave.
 416                   channel - hardware channel number 0-63
 417
 418     Return Value: none
 419
 420   ---------------------------------------------------------------------------*/
 421
 422 static void snd_trident_free_synth_channel(struct snd_trident *trident, int channel)
 423 {
 424         if (channel < 0 || channel > 31)
 425                 return;
 426         channel &= 0x1f;
 427         if (trident->ChanMap[T4D_BANK_A] & (1 << channel)) {
 428                 trident->ChanMap[T4D_BANK_A] &= ~(1 << channel);
 429                 trident->synth.ChanSynthCount--;
 430         }
 431 }
 432
 433 /*---------------------------------------------------------------------------
 434    snd_trident_write_voice_regs
 435
 436    Description: This routine will complete and write the 5 hardware channel
 437                 registers to hardware.
 438
 439    Paramters:   trident - pointer to target device class for 4DWave.
 440                 voice - synthesizer voice structure
 441                 Each register field.
 442
 443   ---------------------------------------------------------------------------*/
 444
 445 void snd_trident_write_voice_regs(struct snd_trident * trident,
 446                                   struct snd_trident_voice * voice)
 447 {
 448         unsigned int FmcRvolCvol;
 449         unsigned int regs[5];
 450
 451         regs[1] = voice->LBA;
 452         regs[4] = (voice->GVSel << 31) |
 453                   ((voice->Pan & 0x0000007f) << 24) |
 454                   ((voice->CTRL & 0x0000000f) << 12);
 455         FmcRvolCvol = ((voice->FMC & 3) << 14) |
 456                       ((voice->RVol & 0x7f) << 7) |
 457                       (voice->CVol & 0x7f);
 458
 459         switch (trident->device) {
 460         case TRIDENT_DEVICE_ID_SI7018:
 461                 regs[4] |= voice->number > 31 ?
 462                                 (voice->Vol & 0x000003ff) :
 463                                 ((voice->Vol & 0x00003fc) << (16-2)) |
 464                                 (voice->EC & 0x00000fff);
 465                 regs[0] = (voice->CSO << 16) | ((voice->Alpha & 0x00000fff) << 4) |
 466                         (voice->FMS & 0x0000000f);
 467                 regs[2] = (voice->ESO << 16) | (voice->Delta & 0x0ffff);
 468                 regs[3] = (voice->Attribute << 16) | FmcRvolCvol;
 469                 break;
 470         case TRIDENT_DEVICE_ID_DX:
 471                 regs[4] |= ((voice->Vol & 0x000003fc) << (16-2)) |
 472                            (voice->EC & 0x00000fff);
 473                 regs[0] = (voice->CSO << 16) | ((voice->Alpha & 0x00000fff) << 4) |
 474                         (voice->FMS & 0x0000000f);
 475                 regs[2] = (voice->ESO << 16) | (voice->Delta & 0x0ffff);
 476                 regs[3] = FmcRvolCvol;
 477                 break;
 478         case TRIDENT_DEVICE_ID_NX:
 479                 regs[4] |= ((voice->Vol & 0x000003fc) << (16-2)) |
 480                            (voice->EC & 0x00000fff);
 481                 regs[0] = (voice->Delta << 24) | (voice->CSO & 0x00ffffff);
 482                 regs[2] = ((voice->Delta << 16) & 0xff000000) |
 483                         (voice->ESO & 0x00ffffff);
 484                 regs[3] = (voice->Alpha << 20) |
 485                         ((voice->FMS & 0x0000000f) << 16) | FmcRvolCvol;
 486                 break;
 487         default:
 488                 snd_BUG();
 489                 return;
 490         }
 491
 492         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 493         outl(regs[0], TRID_REG(trident, CH_START + 0));
 494         outl(regs[1], TRID_REG(trident, CH_START + 4));
 495         outl(regs[2], TRID_REG(trident, CH_START + 8));
 496         outl(regs[3], TRID_REG(trident, CH_START + 12));
 497         outl(regs[4], TRID_REG(trident, CH_START + 16));
 498
 499 #if 0
 500         printk("written %i channel:\n", voice->number);
 501         printk("  regs[0] = 0x%x/0x%x\n", regs[0], inl(TRID_REG(trident, CH_START + 0)));
 502         printk("  regs[1] = 0x%x/0x%x\n", regs[1], inl(TRID_REG(trident, CH_START + 4)));
 503         printk("  regs[2] = 0x%x/0x%x\n", regs[2], inl(TRID_REG(trident, CH_START + 8)));
 504         printk("  regs[3] = 0x%x/0x%x\n", regs[3], inl(TRID_REG(trident, CH_START + 12)));
 505         printk("  regs[4] = 0x%x/0x%x\n", regs[4], inl(TRID_REG(trident, CH_START + 16)));
 506 #endif
 507 }
 508
 509 EXPORT_SYMBOL(snd_trident_write_voice_regs);
 510
 511 /*---------------------------------------------------------------------------
 512    snd_trident_write_cso_reg
 513
 514    Description: This routine will write the new CSO offset
 515                 register to hardware.
 516
 517    Paramters:   trident - pointer to target device class for 4DWave.
 518                 voice - synthesizer voice structure
 519                 CSO - new CSO value
 520
 521   ---------------------------------------------------------------------------*/
 522
 523 static void snd_trident_write_cso_reg(struct snd_trident * trident,
 524                                       struct snd_trident_voice * voice,
 525                                       unsigned int CSO)
 526 {
 527         voice->CSO = CSO;
 528         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 529         if (trident->device != TRIDENT_DEVICE_ID_NX) {
 530                 outw(voice->CSO, TRID_REG(trident, CH_DX_CSO_ALPHA_FMS) + 2);
 531         } else {
 532                 outl((voice->Delta << 24) |
 533                      (voice->CSO & 0x00ffffff), TRID_REG(trident, CH_NX_DELTA_CSO));
 534         }
 535 }
 536
 537 /*---------------------------------------------------------------------------
 538    snd_trident_write_eso_reg
 539
 540    Description: This routine will write the new ESO offset
 541                 register to hardware.
 542
 543    Paramters:   trident - pointer to target device class for 4DWave.
 544                 voice - synthesizer voice structure
 545                 ESO - new ESO value
 546
 547   ---------------------------------------------------------------------------*/
 548
 549 static void snd_trident_write_eso_reg(struct snd_trident * trident,
 550                                       struct snd_trident_voice * voice,
 551                                       unsigned int ESO)
 552 {
 553         voice->ESO = ESO;
 554         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 555         if (trident->device != TRIDENT_DEVICE_ID_NX) {
 556                 outw(voice->ESO, TRID_REG(trident, CH_DX_ESO_DELTA) + 2);
 557         } else {
 558                 outl(((voice->Delta << 16) & 0xff000000) | (voice->ESO & 0x00ffffff),
 559                      TRID_REG(trident, CH_NX_DELTA_ESO));
 560         }
 561 }
 562
 563 /*---------------------------------------------------------------------------
 564    snd_trident_write_vol_reg
 565
 566    Description: This routine will write the new voice volume
 567                 register to hardware.
 568
 569    Paramters:   trident - pointer to target device class for 4DWave.
 570                 voice - synthesizer voice structure
 571                 Vol - new voice volume
 572
 573   ---------------------------------------------------------------------------*/
 574
 575 static void snd_trident_write_vol_reg(struct snd_trident * trident,
 576                                       struct snd_trident_voice * voice,
 577                                       unsigned int Vol)
 578 {
 579         voice->Vol = Vol;
 580         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 581         switch (trident->device) {
 582         case TRIDENT_DEVICE_ID_DX:
 583         case TRIDENT_DEVICE_ID_NX:
 584                 outb(voice->Vol >> 2, TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC + 2));
 585                 break;
 586         case TRIDENT_DEVICE_ID_SI7018:
 587                 // printk("voice->Vol = 0x%x\n", voice->Vol);
 588                 outw((voice->CTRL << 12) | voice->Vol,
 589                      TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));
 590                 break;
 591         }
 592 }
 593
 594 /*---------------------------------------------------------------------------
 595    snd_trident_write_pan_reg
 596
 597    Description: This routine will write the new voice pan
 598                 register to hardware.
 599
 600    Paramters:   trident - pointer to target device class for 4DWave.
 601                 voice - synthesizer voice structure
 602                 Pan - new pan value
 603
 604   ---------------------------------------------------------------------------*/
 605
 606 static void snd_trident_write_pan_reg(struct snd_trident * trident,
 607                                       struct snd_trident_voice * voice,
 608                                       unsigned int Pan)
 609 {
 610         voice->Pan = Pan;
 611         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 612         outb(((voice->GVSel & 0x01) << 7) | (voice->Pan & 0x7f),
 613              TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC + 3));
 614 }
 615
 616 /*---------------------------------------------------------------------------
 617    snd_trident_write_rvol_reg
 618
 619    Description: This routine will write the new reverb volume
 620                 register to hardware.
 621
 622    Paramters:   trident - pointer to target device class for 4DWave.
 623                 voice - synthesizer voice structure
 624                 RVol - new reverb volume
 625
 626   ---------------------------------------------------------------------------*/
 627
 628 static void snd_trident_write_rvol_reg(struct snd_trident * trident,
 629                                        struct snd_trident_voice * voice,
 630                                        unsigned int RVol)
 631 {
 632         voice->RVol = RVol;
 633         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 634         outw(((voice->FMC & 0x0003) << 14) | ((voice->RVol & 0x007f) << 7) |
 635              (voice->CVol & 0x007f),
 636              TRID_REG(trident, trident->device == TRIDENT_DEVICE_ID_NX ?
 637                       CH_NX_ALPHA_FMS_FMC_RVOL_CVOL : CH_DX_FMC_RVOL_CVOL));
 638 }
 639
 640 /*---------------------------------------------------------------------------
 641    snd_trident_write_cvol_reg
 642
 643    Description: This routine will write the new chorus volume
 644                 register to hardware.
 645
 646    Paramters:   trident - pointer to target device class for 4DWave.
 647                 voice - synthesizer voice structure
 648                 CVol - new chorus volume
 649
 650   ---------------------------------------------------------------------------*/
 651
 652 static void snd_trident_write_cvol_reg(struct snd_trident * trident,
 653                                        struct snd_trident_voice * voice,
 654                                        unsigned int CVol)
 655 {
 656         voice->CVol = CVol;
 657         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
 658         outw(((voice->FMC & 0x0003) << 14) | ((voice->RVol & 0x007f) << 7) |
 659              (voice->CVol & 0x007f),
 660              TRID_REG(trident, trident->device == TRIDENT_DEVICE_ID_NX ?
 661                       CH_NX_ALPHA_FMS_FMC_RVOL_CVOL : CH_DX_FMC_RVOL_CVOL));
 662 }
 663
 664 /*---------------------------------------------------------------------------
 665    snd_trident_convert_rate
 666
 667    Description: This routine converts rate in HZ to hardware delta value.
 668
 669    Paramters:   trident - pointer to target device class for 4DWave.
 670                 rate - Real or Virtual channel number.
 671
 672    Returns:     Delta value.
 673
 674   ---------------------------------------------------------------------------*/
 675 static unsigned int snd_trident_convert_rate(unsigned int rate)
 676 {
 677         unsigned int delta;
 678
 679         // We special case 44100 and 8000 since rounding with the equation
 680         // does not give us an accurate enough value. For 11025 and 22050
 681         // the equation gives us the best answer. All other frequencies will
 682         // also use the equation. JDW
 683         if (rate == 44100)
 684                 delta = 0xeb3;
 685         else if (rate == 8000)
 686                 delta = 0x2ab;
 687         else if (rate == 48000)
 688                 delta = 0x1000;
 689         else
 690                 delta = (((rate << 12) + 24000) / 48000) & 0x0000ffff;
 691         return delta;
 692 }
 693
 694 /*---------------------------------------------------------------------------
 695    snd_trident_convert_adc_rate
 696
 697    Description: This routine converts rate in HZ to hardware delta value.
 698
 699    Paramters:   trident - pointer to target device class for 4DWave.
 700                 rate - Real or Virtual channel number.
 701
 702    Returns:     Delta value.
 703
 704   ---------------------------------------------------------------------------*/
 705 static unsigned int snd_trident_convert_adc_rate(unsigned int rate)
 706 {
 707         unsigned int delta;
 708
 709         // We special case 44100 and 8000 since rounding with the equation
 710         // does not give us an accurate enough value. For 11025 and 22050
 711         // the equation gives us the best answer. All other frequencies will
 712         // also use the equation. JDW
 713         if (rate == 44100)
 714                 delta = 0x116a;
 715         else if (rate == 8000)
 716                 delta = 0x6000;
 717         else if (rate == 48000)
 718                 delta = 0x1000;
 719         else
 720                 delta = ((48000 << 12) / rate) & 0x0000ffff;
 721         return delta;
 722 }
 723
 724 /*---------------------------------------------------------------------------
 725    snd_trident_spurious_threshold
 726
 727    Description: This routine converts rate in HZ to spurious threshold.
 728
 729    Paramters:   trident - pointer to target device class for 4DWave.
 730                 rate - Real or Virtual channel number.
 731
 732    Returns:     Delta value.
 733
 734   ---------------------------------------------------------------------------*/
 735 static unsigned int snd_trident_spurious_threshold(unsigned int rate,
 736                                                    unsigned int period_size)
 737 {
 738         unsigned int res = (rate * period_size) / 48000;
 739         if (res < 64)
 740                 res = res / 2;
 741         else
 742                 res -= 32;
 743         return res;
 744 }
 745
 746 /*---------------------------------------------------------------------------
 747    snd_trident_control_mode
 748
 749    Description: This routine returns a control mode for a PCM channel.
 750
 751    Paramters:   trident - pointer to target device class for 4DWave.
 752                 substream  - PCM substream
 753
 754    Returns:     Control value.
 755
 756   ---------------------------------------------------------------------------*/
 757 static unsigned int snd_trident_control_mode(struct snd_pcm_substream *substream)
 758 {
 759         unsigned int CTRL;
 760         struct snd_pcm_runtime *runtime = substream->runtime;
 761
 762         /* set ctrl mode
 763            CTRL default: 8-bit (unsigned) mono, loop mode enabled
 764          */
 765         CTRL = 0x00000001;
 766         if (snd_pcm_format_width(runtime->format) == 16)
 767                 CTRL |= 0x00000008;     // 16-bit data
 768         if (snd_pcm_format_signed(runtime->format))
 769                 CTRL |= 0x00000002;     // signed data
 770         if (runtime->channels > 1)
 771                 CTRL |= 0x00000004;     // stereo data
 772         return CTRL;
 773 }
 774
 775 /*
 776  *  PCM part
 777  */
 778
 779 /*---------------------------------------------------------------------------
 780    snd_trident_ioctl
 781
 782    Description: Device I/O control handler for playback/capture parameters.
 783
 784    Paramters:   substream  - PCM substream class
 785                 cmd     - what ioctl message to process
 786                 arg     - additional message infoarg
 787
 788    Returns:     Error status
 789
 790   ---------------------------------------------------------------------------*/
 791
 792 static int snd_trident_ioctl(struct snd_pcm_substream *substream,
 793                              unsigned int cmd,
 794                              void *arg)
 795 {
 796         /* FIXME: it seems that with small periods the behaviour of
 797                   trident hardware is unpredictable and interrupt generator
 798                   is broken */
 799         return snd_pcm_lib_ioctl(substream, cmd, arg);
 800 }
 801
 802 /*---------------------------------------------------------------------------
 803    snd_trident_allocate_pcm_mem
 804
 805    Description: Allocate PCM ring buffer for given substream
 806
 807    Parameters:  substream  - PCM substream class
 808                 hw_params  - hardware parameters
 809
 810    Returns:     Error status
 811
 812   ---------------------------------------------------------------------------*/
 813
 814 static int snd_trident_allocate_pcm_mem(struct snd_pcm_substream *substream,
 815                                         struct snd_pcm_hw_params *hw_params)
 816 {
 817         struct snd_trident *trident = snd_pcm_substream_chip(substream);
 818         struct snd_pcm_runtime *runtime = substream->runtime;
 819         struct snd_trident_voice *voice = runtime->private_data;
 820         int err;
 821
 822         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
 823                 return err;
 824         if (trident->tlb.entries) {
 825                 if (err > 0) { /* change */
 826                         if (voice->memblk)
 827                                 snd_trident_free_pages(trident, voice->memblk);
 828                         voice->memblk = snd_trident_alloc_pages(trident, substream);
 829                         if (voice->memblk == NULL)
 830                                 return -ENOMEM;
 831                 }
 832         }
 833         return 0;
 834 }
 835
 836 /*---------------------------------------------------------------------------
 837    snd_trident_allocate_evoice
 838
 839    Description: Allocate extra voice as interrupt generator
 840
 841    Parameters:  substream  - PCM substream class
 842                 hw_params  - hardware parameters
 843
 844    Returns:     Error status
 845
 846   ---------------------------------------------------------------------------*/
 847
 848 static int snd_trident_allocate_evoice(struct snd_pcm_substream *substream,
 849                                        struct snd_pcm_hw_params *hw_params)
 850 {
 851         struct snd_trident *trident = snd_pcm_substream_chip(substream);
 852         struct snd_pcm_runtime *runtime = substream->runtime;
 853         struct snd_trident_voice *voice = runtime->private_data;
 854         struct snd_trident_voice *evoice = voice->extra;
 855
 856         /* voice management */
 857
 858         if (params_buffer_size(hw_params) / 2 != params_period_size(hw_params)) {
 859                 if (evoice == NULL) {
 860                         evoice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
 861                         if (evoice == NULL)
 862                                 return -ENOMEM;
 863                         voice->extra = evoice;
 864                         evoice->substream = substream;
 865                 }
 866         } else {
 867                 if (evoice != NULL) {
 868                         snd_trident_free_voice(trident, evoice);
 869                         voice->extra = evoice = NULL;
 870                 }
 871         }
 872
 873         return 0;
 874 }
 875
 876 /*---------------------------------------------------------------------------
 877    snd_trident_hw_params
 878
 879    Description: Set the hardware parameters for the playback device.
 880
 881    Parameters:  substream  - PCM substream class
 882                 hw_params  - hardware parameters
 883
 884    Returns:     Error status
 885
 886   ---------------------------------------------------------------------------*/
 887
 888 static int snd_trident_hw_params(struct snd_pcm_substream *substream,
 889                                  struct snd_pcm_hw_params *hw_params)
 890 {
 891         int err;
 892
 893         err = snd_trident_allocate_pcm_mem(substream, hw_params);
 894         if (err >= 0)
 895                 err = snd_trident_allocate_evoice(substream, hw_params);
 896         return err;
 897 }
 898
 899 /*---------------------------------------------------------------------------
 900    snd_trident_playback_hw_free
 901
 902    Description: Release the hardware resources for the playback device.
 903
 904    Parameters:  substream  - PCM substream class
 905
 906    Returns:     Error status
 907
 908   ---------------------------------------------------------------------------*/
 909
 910 static int snd_trident_hw_free(struct snd_pcm_substream *substream)
 911 {
 912         struct snd_trident *trident = snd_pcm_substream_chip(substream);
 913         struct snd_pcm_runtime *runtime = substream->runtime;
 914         struct snd_trident_voice *voice = runtime->private_data;
 915         struct snd_trident_voice *evoice = voice ? voice->extra : NULL;
 916
 917         if (trident->tlb.entries) {
 918                 if (voice && voice->memblk) {
 919                         snd_trident_free_pages(trident, voice->memblk);
 920                         voice->memblk = NULL;
 921                 }
 922         }
 923         snd_pcm_lib_free_pages(substream);
 924         if (evoice != NULL) {
 925                 snd_trident_free_voice(trident, evoice);
 926                 voice->extra = NULL;
 927         }
 928         return 0;
 929 }
 930
 931 /*---------------------------------------------------------------------------
 932    snd_trident_playback_prepare
 933
 934    Description: Prepare playback device for playback.
 935
 936    Parameters:  substream  - PCM substream class
 937
 938    Returns:     Error status
 939
 940   ---------------------------------------------------------------------------*/
 941
 942 static int snd_trident_playback_prepare(struct snd_pcm_substream *substream)
 943 {
 944         struct snd_trident *trident = snd_pcm_substream_chip(substream);
 945         struct snd_pcm_runtime *runtime = substream->runtime;
 946         struct snd_trident_voice *voice = runtime->private_data;
 947         struct snd_trident_voice *evoice = voice->extra;
 948         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[substream->number];
 949
 950         spin_lock_irq(&trident->reg_lock);
 951
 952         /* set delta (rate) value */
 953         voice->Delta = snd_trident_convert_rate(runtime->rate);
 954         voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
 955
 956         /* set Loop Begin Address */
 957         if (voice->memblk)
 958                 voice->LBA = voice->memblk->offset;
 959         else
 960                 voice->LBA = runtime->dma_addr;
 961
 962         voice->CSO = 0;
 963         voice->ESO = runtime->buffer_size - 1;  /* in samples */
 964         voice->CTRL = snd_trident_control_mode(substream);
 965         voice->FMC = 3;
 966         voice->GVSel = 1;
 967         voice->EC = 0;
 968         voice->Alpha = 0;
 969         voice->FMS = 0;
 970         voice->Vol = mix->vol;
 971         voice->RVol = mix->rvol;
 972         voice->CVol = mix->cvol;
 973         voice->Pan = mix->pan;
 974         voice->Attribute = 0;
 975 #if 0
 976         voice->Attribute = (1<<(30-16))|(2<<(26-16))|
 977                            (0<<(24-16))|(0x1f<<(19-16));
 978 #else
 979         voice->Attribute = 0;
 980 #endif
 981
 982         snd_trident_write_voice_regs(trident, voice);
 983
 984         if (evoice != NULL) {
 985                 evoice->Delta = voice->Delta;
 986                 evoice->spurious_threshold = voice->spurious_threshold;
 987                 evoice->LBA = voice->LBA;
 988                 evoice->CSO = 0;
 989                 evoice->ESO = (runtime->period_size * 2) + 4 - 1; /* in samples */
 990                 evoice->CTRL = voice->CTRL;
 991                 evoice->FMC = 3;
 992                 evoice->GVSel = trident->device == TRIDENT_DEVICE_ID_SI7018 ? 0 : 1;
 993                 evoice->EC = 0;
 994                 evoice->Alpha = 0;
 995                 evoice->FMS = 0;
 996                 evoice->Vol = 0x3ff;                    /* mute */
 997                 evoice->RVol = evoice->CVol = 0x7f;     /* mute */
 998                 evoice->Pan = 0x7f;                     /* mute */
 999 #if 0
1000                 evoice->Attribute = (1<<(30-16))|(2<<(26-16))|
1001                                     (0<<(24-16))|(0x1f<<(19-16));
1002 #else
1003                 evoice->Attribute = 0;
1004 #endif
1005                 snd_trident_write_voice_regs(trident, evoice);
1006                 evoice->isync2 = 1;
1007                 evoice->isync_mark = runtime->period_size;
1008                 evoice->ESO = (runtime->period_size * 2) - 1;
1009         }
1010
1011         spin_unlock_irq(&trident->reg_lock);
1012
1013         return 0;
1014 }
1015
1016 /*---------------------------------------------------------------------------
1017    snd_trident_capture_hw_params
1018
1019    Description: Set the hardware parameters for the capture device.
1020
1021    Parameters:  substream  - PCM substream class
1022                 hw_params  - hardware parameters
1023
1024    Returns:     Error status
1025
1026   ---------------------------------------------------------------------------*/
1027
1028 static int snd_trident_capture_hw_params(struct snd_pcm_substream *substream,
1029                                          struct snd_pcm_hw_params *hw_params)
1030 {
1031         return snd_trident_allocate_pcm_mem(substream, hw_params);
1032 }
1033
1034 /*---------------------------------------------------------------------------
1035    snd_trident_capture_prepare
1036
1037    Description: Prepare capture device for playback.
1038
1039    Parameters:  substream  - PCM substream class
1040
1041    Returns:     Error status
1042
1043   ---------------------------------------------------------------------------*/
1044
1045 static int snd_trident_capture_prepare(struct snd_pcm_substream *substream)
1046 {
1047         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1048         struct snd_pcm_runtime *runtime = substream->runtime;
1049         struct snd_trident_voice *voice = runtime->private_data;
1050         unsigned int val, ESO_bytes;
1051
1052         spin_lock_irq(&trident->reg_lock);
1053
1054         // Initilize the channel and set channel Mode
1055         outb(0, TRID_REG(trident, LEGACY_DMAR15));
1056
1057         // Set DMA channel operation mode register
1058         outb(0x54, TRID_REG(trident, LEGACY_DMAR11));
1059
1060         // Set channel buffer Address, DMAR0 expects contiguous PCI memory area
1061         voice->LBA = runtime->dma_addr;
1062         outl(voice->LBA, TRID_REG(trident, LEGACY_DMAR0));
1063         if (voice->memblk)
1064                 voice->LBA = voice->memblk->offset;
1065
1066         // set ESO
1067         ESO_bytes = snd_pcm_lib_buffer_bytes(substream) - 1;
1068         outb((ESO_bytes & 0x00ff0000) >> 16, TRID_REG(trident, LEGACY_DMAR6));
1069         outw((ESO_bytes & 0x0000ffff), TRID_REG(trident, LEGACY_DMAR4));
1070         ESO_bytes++;
1071
1072         // Set channel sample rate, 4.12 format
1073         val = (((unsigned int) 48000L << 12) + (runtime->rate/2)) / runtime->rate;
1074         outw(val, TRID_REG(trident, T4D_SBDELTA_DELTA_R));
1075
1076         // Set channel interrupt blk length
1077         if (snd_pcm_format_width(runtime->format) == 16) {
1078                 val = (unsigned short) ((ESO_bytes >> 1) - 1);
1079         } else {
1080                 val = (unsigned short) (ESO_bytes - 1);
1081         }
1082
1083         outl((val << 16) | val, TRID_REG(trident, T4D_SBBL_SBCL));
1084
1085         // Right now, set format and start to run captureing,
1086         // continuous run loop enable.
1087         trident->bDMAStart = 0x19;      // 0001 1001b
1088
1089         if (snd_pcm_format_width(runtime->format) == 16)
1090                 trident->bDMAStart |= 0x80;
1091         if (snd_pcm_format_signed(runtime->format))
1092                 trident->bDMAStart |= 0x20;
1093         if (runtime->channels > 1)
1094                 trident->bDMAStart |= 0x40;
1095
1096         // Prepare capture intr channel
1097
1098         voice->Delta = snd_trident_convert_rate(runtime->rate);
1099         voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
1100         voice->isync = 1;
1101         voice->isync_mark = runtime->period_size;
1102         voice->isync_max = runtime->buffer_size;
1103
1104         // Set voice parameters
1105         voice->CSO = 0;
1106         voice->ESO = voice->isync_ESO = (runtime->period_size * 2) + 6 - 1;
1107         voice->CTRL = snd_trident_control_mode(substream);
1108         voice->FMC = 3;
1109         voice->RVol = 0x7f;
1110         voice->CVol = 0x7f;
1111         voice->GVSel = 1;
1112         voice->Pan = 0x7f;              /* mute */
1113         voice->Vol = 0x3ff;             /* mute */
1114         voice->EC = 0;
1115         voice->Alpha = 0;
1116         voice->FMS = 0;
1117         voice->Attribute = 0;
1118
1119         snd_trident_write_voice_regs(trident, voice);
1120
1121         spin_unlock_irq(&trident->reg_lock);
1122         return 0;
1123 }
1124
1125 /*---------------------------------------------------------------------------
1126    snd_trident_si7018_capture_hw_params
1127
1128    Description: Set the hardware parameters for the capture device.
1129
1130    Parameters:  substream  - PCM substream class
1131                 hw_params  - hardware parameters
1132
1133    Returns:     Error status
1134
1135   ---------------------------------------------------------------------------*/
1136
1137 static int snd_trident_si7018_capture_hw_params(struct snd_pcm_substream *substream,
1138                                                 struct snd_pcm_hw_params *hw_params)
1139 {
1140         int err;
1141
1142         if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
1143                 return err;
1144
1145         return snd_trident_allocate_evoice(substream, hw_params);
1146 }
1147
1148 /*---------------------------------------------------------------------------
1149    snd_trident_si7018_capture_hw_free
1150
1151    Description: Release the hardware resources for the capture device.
1152
1153    Parameters:  substream  - PCM substream class
1154
1155    Returns:     Error status
1156
1157   ---------------------------------------------------------------------------*/
1158
1159 static int snd_trident_si7018_capture_hw_free(struct snd_pcm_substream *substream)
1160 {
1161         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1162         struct snd_pcm_runtime *runtime = substream->runtime;
1163         struct snd_trident_voice *voice = runtime->private_data;
1164         struct snd_trident_voice *evoice = voice ? voice->extra : NULL;
1165
1166         snd_pcm_lib_free_pages(substream);
1167         if (evoice != NULL) {
1168                 snd_trident_free_voice(trident, evoice);
1169                 voice->extra = NULL;
1170         }
1171         return 0;
1172 }
1173
1174 /*---------------------------------------------------------------------------
1175    snd_trident_si7018_capture_prepare
1176
1177    Description: Prepare capture device for playback.
1178
1179    Parameters:  substream  - PCM substream class
1180
1181    Returns:     Error status
1182
1183   ---------------------------------------------------------------------------*/
1184
1185 static int snd_trident_si7018_capture_prepare(struct snd_pcm_substream *substream)
1186 {
1187         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1188         struct snd_pcm_runtime *runtime = substream->runtime;
1189         struct snd_trident_voice *voice = runtime->private_data;
1190         struct snd_trident_voice *evoice = voice->extra;
1191
1192         spin_lock_irq(&trident->reg_lock);
1193
1194         voice->LBA = runtime->dma_addr;
1195         voice->Delta = snd_trident_convert_adc_rate(runtime->rate);
1196         voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
1197
1198         // Set voice parameters
1199         voice->CSO = 0;
1200         voice->ESO = runtime->buffer_size - 1;          /* in samples */
1201         voice->CTRL = snd_trident_control_mode(substream);
1202         voice->FMC = 0;
1203         voice->RVol = 0;
1204         voice->CVol = 0;
1205         voice->GVSel = 1;
1206         voice->Pan = T4D_DEFAULT_PCM_PAN;
1207         voice->Vol = 0;
1208         voice->EC = 0;
1209         voice->Alpha = 0;
1210         voice->FMS = 0;
1211
1212         voice->Attribute = (2 << (30-16)) |
1213                            (2 << (26-16)) |
1214                            (2 << (24-16)) |
1215                            (1 << (23-16));
1216
1217         snd_trident_write_voice_regs(trident, voice);
1218
1219         if (evoice != NULL) {
1220                 evoice->Delta = snd_trident_convert_rate(runtime->rate);
1221                 evoice->spurious_threshold = voice->spurious_threshold;
1222                 evoice->LBA = voice->LBA;
1223                 evoice->CSO = 0;
1224                 evoice->ESO = (runtime->period_size * 2) + 20 - 1; /* in samples, 20 means correction */
1225                 evoice->CTRL = voice->CTRL;
1226                 evoice->FMC = 3;
1227                 evoice->GVSel = 0;
1228                 evoice->EC = 0;
1229                 evoice->Alpha = 0;
1230                 evoice->FMS = 0;
1231                 evoice->Vol = 0x3ff;                    /* mute */
1232                 evoice->RVol = evoice->CVol = 0x7f;     /* mute */
1233                 evoice->Pan = 0x7f;                     /* mute */
1234                 evoice->Attribute = 0;
1235                 snd_trident_write_voice_regs(trident, evoice);
1236                 evoice->isync2 = 1;
1237                 evoice->isync_mark = runtime->period_size;
1238                 evoice->ESO = (runtime->period_size * 2) - 1;
1239         }
1240
1241         spin_unlock_irq(&trident->reg_lock);
1242         return 0;
1243 }
1244
1245 /*---------------------------------------------------------------------------
1246    snd_trident_foldback_prepare
1247
1248    Description: Prepare foldback capture device for playback.
1249
1250    Parameters:  substream  - PCM substream class
1251
1252    Returns:     Error status
1253
1254   ---------------------------------------------------------------------------*/
1255
1256 static int snd_trident_foldback_prepare(struct snd_pcm_substream *substream)
1257 {
1258         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1259         struct snd_pcm_runtime *runtime = substream->runtime;
1260         struct snd_trident_voice *voice = runtime->private_data;
1261         struct snd_trident_voice *evoice = voice->extra;
1262
1263         spin_lock_irq(&trident->reg_lock);
1264
1265         /* Set channel buffer Address */
1266         if (voice->memblk)
1267                 voice->LBA = voice->memblk->offset;
1268         else
1269                 voice->LBA = runtime->dma_addr;
1270
1271         /* set target ESO for channel */
1272         voice->ESO = runtime->buffer_size - 1;  /* in samples */
1273
1274         /* set sample rate */
1275         voice->Delta = 0x1000;
1276         voice->spurious_threshold = snd_trident_spurious_threshold(48000, runtime->period_size);
1277
1278         voice->CSO = 0;
1279         voice->CTRL = snd_trident_control_mode(substream);
1280         voice->FMC = 3;
1281         voice->RVol = 0x7f;
1282         voice->CVol = 0x7f;
1283         voice->GVSel = 1;
1284         voice->Pan = 0x7f;      /* mute */
1285         voice->Vol = 0x3ff;     /* mute */
1286         voice->EC = 0;
1287         voice->Alpha = 0;
1288         voice->FMS = 0;
1289         voice->Attribute = 0;
1290
1291         /* set up capture channel */
1292         outb(((voice->number & 0x3f) | 0x80), TRID_REG(trident, T4D_RCI + voice->foldback_chan));
1293
1294         snd_trident_write_voice_regs(trident, voice);
1295
1296         if (evoice != NULL) {
1297                 evoice->Delta = voice->Delta;
1298                 evoice->spurious_threshold = voice->spurious_threshold;
1299                 evoice->LBA = voice->LBA;
1300                 evoice->CSO = 0;
1301                 evoice->ESO = (runtime->period_size * 2) + 4 - 1; /* in samples */
1302                 evoice->CTRL = voice->CTRL;
1303                 evoice->FMC = 3;
1304                 evoice->GVSel = trident->device == TRIDENT_DEVICE_ID_SI7018 ? 0 : 1;
1305                 evoice->EC = 0;
1306                 evoice->Alpha = 0;
1307                 evoice->FMS = 0;
1308                 evoice->Vol = 0x3ff;                    /* mute */
1309                 evoice->RVol = evoice->CVol = 0x7f;     /* mute */
1310                 evoice->Pan = 0x7f;                     /* mute */
1311                 evoice->Attribute = 0;
1312                 snd_trident_write_voice_regs(trident, evoice);
1313                 evoice->isync2 = 1;
1314                 evoice->isync_mark = runtime->period_size;
1315                 evoice->ESO = (runtime->period_size * 2) - 1;
1316         }
1317
1318         spin_unlock_irq(&trident->reg_lock);
1319         return 0;
1320 }
1321
1322 /*---------------------------------------------------------------------------
1323    snd_trident_spdif_hw_params
1324
1325    Description: Set the hardware parameters for the spdif device.
1326
1327    Parameters:  substream  - PCM substream class
1328                 hw_params  - hardware parameters
1329
1330    Returns:     Error status
1331
1332   ---------------------------------------------------------------------------*/
1333
1334 static int snd_trident_spdif_hw_params(struct snd_pcm_substream *substream,
1335                                        struct snd_pcm_hw_params *hw_params)
1336 {
1337         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1338         unsigned int old_bits = 0, change = 0;
1339         int err;
1340
1341         err = snd_trident_allocate_pcm_mem(substream, hw_params);
1342         if (err < 0)
1343                 return err;
1344
1345         if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
1346                 err = snd_trident_allocate_evoice(substream, hw_params);
1347                 if (err < 0)
1348                         return err;
1349         }
1350
1351         /* prepare SPDIF channel */
1352         spin_lock_irq(&trident->reg_lock);
1353         old_bits = trident->spdif_pcm_bits;
1354         if (old_bits & IEC958_AES0_PROFESSIONAL)
1355                 trident->spdif_pcm_bits &= ~IEC958_AES0_PRO_FS;
1356         else
1357                 trident->spdif_pcm_bits &= ~(IEC958_AES3_CON_FS << 24);
1358         if (params_rate(hw_params) >= 48000) {
1359                 trident->spdif_pcm_ctrl = 0x3c; // 48000 Hz
1360                 trident->spdif_pcm_bits |=
1361                         trident->spdif_bits & IEC958_AES0_PROFESSIONAL ?
1362                                 IEC958_AES0_PRO_FS_48000 :
1363                                 (IEC958_AES3_CON_FS_48000 << 24);
1364         }
1365         else if (params_rate(hw_params) >= 44100) {
1366                 trident->spdif_pcm_ctrl = 0x3e; // 44100 Hz
1367                 trident->spdif_pcm_bits |=
1368                         trident->spdif_bits & IEC958_AES0_PROFESSIONAL ?
1369                                 IEC958_AES0_PRO_FS_44100 :
1370                                 (IEC958_AES3_CON_FS_44100 << 24);
1371         }
1372         else {
1373                 trident->spdif_pcm_ctrl = 0x3d; // 32000 Hz
1374                 trident->spdif_pcm_bits |=
1375                         trident->spdif_bits & IEC958_AES0_PROFESSIONAL ?
1376                                 IEC958_AES0_PRO_FS_32000 :
1377                                 (IEC958_AES3_CON_FS_32000 << 24);
1378         }
1379         change = old_bits != trident->spdif_pcm_bits;
1380         spin_unlock_irq(&trident->reg_lock);
1381
1382         if (change)
1383                 snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE, &trident->spdif_pcm_ctl->id);
1384
1385         return 0;
1386 }
1387
1388 /*---------------------------------------------------------------------------
1389    snd_trident_spdif_prepare
1390
1391    Description: Prepare SPDIF device for playback.
1392
1393    Parameters:  substream  - PCM substream class
1394
1395    Returns:     Error status
1396
1397   ---------------------------------------------------------------------------*/
1398
1399 static int snd_trident_spdif_prepare(struct snd_pcm_substream *substream)
1400 {
1401         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1402         struct snd_pcm_runtime *runtime = substream->runtime;
1403         struct snd_trident_voice *voice = runtime->private_data;
1404         struct snd_trident_voice *evoice = voice->extra;
1405         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[substream->number];
1406         unsigned int RESO, LBAO;
1407         unsigned int temp;
1408
1409         spin_lock_irq(&trident->reg_lock);
1410
1411         if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
1412
1413                 /* set delta (rate) value */
1414                 voice->Delta = snd_trident_convert_rate(runtime->rate);
1415                 voice->spurious_threshold = snd_trident_spurious_threshold(runtime->rate, runtime->period_size);
1416
1417                 /* set Loop Back Address */
1418                 LBAO = runtime->dma_addr;
1419                 if (voice->memblk)
1420                         voice->LBA = voice->memblk->offset;
1421                 else
1422                         voice->LBA = LBAO;
1423
1424                 voice->isync = 1;
1425                 voice->isync3 = 1;
1426                 voice->isync_mark = runtime->period_size;
1427                 voice->isync_max = runtime->buffer_size;
1428
1429                 /* set target ESO for channel */
1430                 RESO = runtime->buffer_size - 1;
1431                 voice->ESO = voice->isync_ESO = (runtime->period_size * 2) + 6 - 1;
1432
1433                 /* set ctrl mode */
1434                 voice->CTRL = snd_trident_control_mode(substream);
1435
1436                 voice->FMC = 3;
1437                 voice->RVol = 0x7f;
1438                 voice->CVol = 0x7f;
1439                 voice->GVSel = 1;
1440                 voice->Pan = 0x7f;
1441                 voice->Vol = 0x3ff;
1442                 voice->EC = 0;
1443                 voice->CSO = 0;
1444                 voice->Alpha = 0;
1445                 voice->FMS = 0;
1446                 voice->Attribute = 0;
1447
1448                 /* prepare surrogate IRQ channel */
1449                 snd_trident_write_voice_regs(trident, voice);
1450
1451                 outw((RESO & 0xffff), TRID_REG(trident, NX_SPESO));
1452                 outb((RESO >> 16), TRID_REG(trident, NX_SPESO + 2));
1453                 outl((LBAO & 0xfffffffc), TRID_REG(trident, NX_SPLBA));
1454                 outw((voice->CSO & 0xffff), TRID_REG(trident, NX_SPCTRL_SPCSO));
1455                 outb((voice->CSO >> 16), TRID_REG(trident, NX_SPCTRL_SPCSO + 2));
1456
1457                 /* set SPDIF setting */
1458                 outb(trident->spdif_pcm_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
1459                 outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
1460
1461         } else {        /* SiS */
1462
1463                 /* set delta (rate) value */
1464                 voice->Delta = 0x800;
1465                 voice->spurious_threshold = snd_trident_spurious_threshold(48000, runtime->period_size);
1466
1467                 /* set Loop Begin Address */
1468                 if (voice->memblk)
1469                         voice->LBA = voice->memblk->offset;
1470                 else
1471                         voice->LBA = runtime->dma_addr;
1472
1473                 voice->CSO = 0;
1474                 voice->ESO = runtime->buffer_size - 1;  /* in samples */
1475                 voice->CTRL = snd_trident_control_mode(substream);
1476                 voice->FMC = 3;
1477                 voice->GVSel = 1;
1478                 voice->EC = 0;
1479                 voice->Alpha = 0;
1480                 voice->FMS = 0;
1481                 voice->Vol = mix->vol;
1482                 voice->RVol = mix->rvol;
1483                 voice->CVol = mix->cvol;
1484                 voice->Pan = mix->pan;
1485                 voice->Attribute = (1<<(30-16))|(7<<(26-16))|
1486                                    (0<<(24-16))|(0<<(19-16));
1487
1488                 snd_trident_write_voice_regs(trident, voice);
1489
1490                 if (evoice != NULL) {
1491                         evoice->Delta = voice->Delta;
1492                         evoice->spurious_threshold = voice->spurious_threshold;
1493                         evoice->LBA = voice->LBA;
1494                         evoice->CSO = 0;
1495                         evoice->ESO = (runtime->period_size * 2) + 4 - 1; /* in samples */
1496                         evoice->CTRL = voice->CTRL;
1497                         evoice->FMC = 3;
1498                         evoice->GVSel = trident->device == TRIDENT_DEVICE_ID_SI7018 ? 0 : 1;
1499                         evoice->EC = 0;
1500                         evoice->Alpha = 0;
1501                         evoice->FMS = 0;
1502                         evoice->Vol = 0x3ff;                    /* mute */
1503                         evoice->RVol = evoice->CVol = 0x7f;     /* mute */
1504                         evoice->Pan = 0x7f;                     /* mute */
1505                         evoice->Attribute = 0;
1506                         snd_trident_write_voice_regs(trident, evoice);
1507                         evoice->isync2 = 1;
1508                         evoice->isync_mark = runtime->period_size;
1509                         evoice->ESO = (runtime->period_size * 2) - 1;
1510                 }
1511
1512                 outl(trident->spdif_pcm_bits, TRID_REG(trident, SI_SPDIF_CS));
1513                 temp = inl(TRID_REG(trident, T4D_LFO_GC_CIR));
1514                 temp &= ~(1<<19);
1515                 outl(temp, TRID_REG(trident, T4D_LFO_GC_CIR));
1516                 temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1517                 temp |= SPDIF_EN;
1518                 outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1519         }
1520
1521         spin_unlock_irq(&trident->reg_lock);
1522
1523         return 0;
1524 }
1525
1526 /*---------------------------------------------------------------------------
1527    snd_trident_trigger
1528
1529    Description: Start/stop devices
1530
1531    Parameters:  substream  - PCM substream class
1532                 cmd     - trigger command (STOP, GO)
1533
1534    Returns:     Error status
1535
1536   ---------------------------------------------------------------------------*/
1537
1538 static int snd_trident_trigger(struct snd_pcm_substream *substream,
1539                                int cmd)
1540
1541 {
1542         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1543         struct snd_pcm_substream *s;
1544         unsigned int what, whati, capture_flag, spdif_flag;
1545         struct snd_trident_voice *voice, *evoice;
1546         unsigned int val, go;
1547
1548         switch (cmd) {
1549         case SNDRV_PCM_TRIGGER_START:
1550         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1551         case SNDRV_PCM_TRIGGER_RESUME:
1552                 go = 1;
1553                 break;
1554         case SNDRV_PCM_TRIGGER_STOP:
1555         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1556         case SNDRV_PCM_TRIGGER_SUSPEND:
1557                 go = 0;
1558                 break;
1559         default:
1560                 return -EINVAL;
1561         }
1562         what = whati = capture_flag = spdif_flag = 0;
1563         spin_lock(&trident->reg_lock);
1564         val = inl(TRID_REG(trident, T4D_STIMER)) & 0x00ffffff;
1565         snd_pcm_group_for_each_entry(s, substream) {
1566                 if ((struct snd_trident *) snd_pcm_substream_chip(s) == trident) {
1567                         voice = s->runtime->private_data;
1568                         evoice = voice->extra;
1569                         what |= 1 << (voice->number & 0x1f);
1570                         if (evoice == NULL) {
1571                                 whati |= 1 << (voice->number & 0x1f);
1572                         } else {
1573                                 what |= 1 << (evoice->number & 0x1f);
1574                                 whati |= 1 << (evoice->number & 0x1f);
1575                                 if (go)
1576                                         evoice->stimer = val;
1577                         }
1578                         if (go) {
1579                                 voice->running = 1;
1580                                 voice->stimer = val;
1581                         } else {
1582                                 voice->running = 0;
1583                         }
1584                         snd_pcm_trigger_done(s, substream);
1585                         if (voice->capture)
1586                                 capture_flag = 1;
1587                         if (voice->spdif)
1588                                 spdif_flag = 1;
1589                 }
1590         }
1591         if (spdif_flag) {
1592                 if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
1593                         outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
1594                         outb(trident->spdif_pcm_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
1595                 } else {
1596                         outl(trident->spdif_pcm_bits, TRID_REG(trident, SI_SPDIF_CS));
1597                         val = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) | SPDIF_EN;
1598                         outl(val, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1599                 }
1600         }
1601         if (!go)
1602                 outl(what, TRID_REG(trident, T4D_STOP_B));
1603         val = inl(TRID_REG(trident, T4D_AINTEN_B));
1604         if (go) {
1605                 val |= whati;
1606         } else {
1607                 val &= ~whati;
1608         }
1609         outl(val, TRID_REG(trident, T4D_AINTEN_B));
1610         if (go) {
1611                 outl(what, TRID_REG(trident, T4D_START_B));
1612
1613                 if (capture_flag && trident->device != TRIDENT_DEVICE_ID_SI7018)
1614                         outb(trident->bDMAStart, TRID_REG(trident, T4D_SBCTRL_SBE2R_SBDD));
1615         } else {
1616                 if (capture_flag && trident->device != TRIDENT_DEVICE_ID_SI7018)
1617                         outb(0x00, TRID_REG(trident, T4D_SBCTRL_SBE2R_SBDD));
1618         }
1619         spin_unlock(&trident->reg_lock);
1620         return 0;
1621 }
1622
1623 /*---------------------------------------------------------------------------
1624    snd_trident_playback_pointer
1625
1626    Description: This routine return the playback position
1627
1628    Parameters:  substream  - PCM substream class
1629
1630    Returns:     position of buffer
1631
1632   ---------------------------------------------------------------------------*/
1633
1634 static snd_pcm_uframes_t snd_trident_playback_pointer(struct snd_pcm_substream *substream)
1635 {
1636         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1637         struct snd_pcm_runtime *runtime = substream->runtime;
1638         struct snd_trident_voice *voice = runtime->private_data;
1639         unsigned int cso;
1640
1641         if (!voice->running)
1642                 return 0;
1643
1644         spin_lock(&trident->reg_lock);
1645
1646         outb(voice->number, TRID_REG(trident, T4D_LFO_GC_CIR));
1647
1648         if (trident->device != TRIDENT_DEVICE_ID_NX) {
1649                 cso = inw(TRID_REG(trident, CH_DX_CSO_ALPHA_FMS + 2));
1650         } else {                // ID_4DWAVE_NX
1651                 cso = (unsigned int) inl(TRID_REG(trident, CH_NX_DELTA_CSO)) & 0x00ffffff;
1652         }
1653
1654         spin_unlock(&trident->reg_lock);
1655
1656         if (cso >= runtime->buffer_size)
1657                 cso = 0;
1658
1659         return cso;
1660 }
1661
1662 /*---------------------------------------------------------------------------
1663    snd_trident_capture_pointer
1664
1665    Description: This routine return the capture position
1666
1667    Paramters:   pcm1    - PCM device class
1668
1669    Returns:     position of buffer
1670
1671   ---------------------------------------------------------------------------*/
1672
1673 static snd_pcm_uframes_t snd_trident_capture_pointer(struct snd_pcm_substream *substream)
1674 {
1675         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1676         struct snd_pcm_runtime *runtime = substream->runtime;
1677         struct snd_trident_voice *voice = runtime->private_data;
1678         unsigned int result;
1679
1680         if (!voice->running)
1681                 return 0;
1682
1683         result = inw(TRID_REG(trident, T4D_SBBL_SBCL));
1684         if (runtime->channels > 1)
1685                 result >>= 1;
1686         if (result > 0)
1687                 result = runtime->buffer_size - result;
1688
1689         return result;
1690 }
1691
1692 /*---------------------------------------------------------------------------
1693    snd_trident_spdif_pointer
1694
1695    Description: This routine return the SPDIF playback position
1696
1697    Parameters:  substream  - PCM substream class
1698
1699    Returns:     position of buffer
1700
1701   ---------------------------------------------------------------------------*/
1702
1703 static snd_pcm_uframes_t snd_trident_spdif_pointer(struct snd_pcm_substream *substream)
1704 {
1705         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1706         struct snd_pcm_runtime *runtime = substream->runtime;
1707         struct snd_trident_voice *voice = runtime->private_data;
1708         unsigned int result;
1709
1710         if (!voice->running)
1711                 return 0;
1712
1713         result = inl(TRID_REG(trident, NX_SPCTRL_SPCSO)) & 0x00ffffff;
1714
1715         return result;
1716 }
1717
1718 /*
1719  *  Playback support device description
1720  */
1721
1722 static struct snd_pcm_hardware snd_trident_playback =
1723 {
1724         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1725                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1726                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1727                                  SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1728         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1729                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1730         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1731         .rate_min =             4000,
1732         .rate_max =             48000,
1733         .channels_min =         1,
1734         .channels_max =         2,
1735         .buffer_bytes_max =     (256*1024),
1736         .period_bytes_min =     64,
1737         .period_bytes_max =     (256*1024),
1738         .periods_min =          1,
1739         .periods_max =          1024,
1740         .fifo_size =            0,
1741 };
1742
1743 /*
1744  *  Capture support device description
1745  */
1746
1747 static struct snd_pcm_hardware snd_trident_capture =
1748 {
1749         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1750                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1751                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1752                                  SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1753         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1754                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1755         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1756         .rate_min =             4000,
1757         .rate_max =             48000,
1758         .channels_min =         1,
1759         .channels_max =         2,
1760         .buffer_bytes_max =     (128*1024),
1761         .period_bytes_min =     64,
1762         .period_bytes_max =     (128*1024),
1763         .periods_min =          1,
1764         .periods_max =          1024,
1765         .fifo_size =            0,
1766 };
1767
1768 /*
1769  *  Foldback capture support device description
1770  */
1771
1772 static struct snd_pcm_hardware snd_trident_foldback =
1773 {
1774         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1775                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1776                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1777                                  SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1778         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1779         .rates =                SNDRV_PCM_RATE_48000,
1780         .rate_min =             48000,
1781         .rate_max =             48000,
1782         .channels_min =         2,
1783         .channels_max =         2,
1784         .buffer_bytes_max =     (128*1024),
1785         .period_bytes_min =     64,
1786         .period_bytes_max =     (128*1024),
1787         .periods_min =          1,
1788         .periods_max =          1024,
1789         .fifo_size =            0,
1790 };
1791
1792 /*
1793  *  SPDIF playback support device description
1794  */
1795
1796 static struct snd_pcm_hardware snd_trident_spdif =
1797 {
1798         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1799                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1800                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1801                                  SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1802         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1803         .rates =                (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
1804                                  SNDRV_PCM_RATE_48000),
1805         .rate_min =             32000,
1806         .rate_max =             48000,
1807         .channels_min =         2,
1808         .channels_max =         2,
1809         .buffer_bytes_max =     (128*1024),
1810         .period_bytes_min =     64,
1811         .period_bytes_max =     (128*1024),
1812         .periods_min =          1,
1813         .periods_max =          1024,
1814         .fifo_size =            0,
1815 };
1816
1817 static struct snd_pcm_hardware snd_trident_spdif_7018 =
1818 {
1819         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1820                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1821                                  SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
1822                                  SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
1823         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1824         .rates =                SNDRV_PCM_RATE_48000,
1825         .rate_min =             48000,
1826         .rate_max =             48000,
1827         .channels_min =         2,
1828         .channels_max =         2,
1829         .buffer_bytes_max =     (128*1024),
1830         .period_bytes_min =     64,
1831         .period_bytes_max =     (128*1024),
1832         .periods_min =          1,
1833         .periods_max =          1024,
1834         .fifo_size =            0,
1835 };
1836
1837 static void snd_trident_pcm_free_substream(struct snd_pcm_runtime *runtime)
1838 {
1839         struct snd_trident_voice *voice = runtime->private_data;
1840         struct snd_trident *trident;
1841
1842         if (voice) {
1843                 trident = voice->trident;
1844                 snd_trident_free_voice(trident, voice);
1845         }
1846 }
1847
1848 static int snd_trident_playback_open(struct snd_pcm_substream *substream)
1849 {
1850         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1851         struct snd_pcm_runtime *runtime = substream->runtime;
1852         struct snd_trident_voice *voice;
1853
1854         voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1855         if (voice == NULL)
1856                 return -EAGAIN;
1857         snd_trident_pcm_mixer_build(trident, voice, substream);
1858         voice->substream = substream;
1859         runtime->private_data = voice;
1860         runtime->private_free = snd_trident_pcm_free_substream;
1861         runtime->hw = snd_trident_playback;
1862         snd_pcm_set_sync(substream);
1863         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1864         return 0;
1865 }
1866
1867 /*---------------------------------------------------------------------------
1868    snd_trident_playback_close
1869
1870    Description: This routine will close the 4DWave playback device. For now
1871                 we will simply free the dma transfer buffer.
1872
1873    Parameters:  substream  - PCM substream class
1874
1875   ---------------------------------------------------------------------------*/
1876 static int snd_trident_playback_close(struct snd_pcm_substream *substream)
1877 {
1878         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1879         struct snd_pcm_runtime *runtime = substream->runtime;
1880         struct snd_trident_voice *voice = runtime->private_data;
1881
1882         snd_trident_pcm_mixer_free(trident, voice, substream);
1883         return 0;
1884 }
1885
1886 /*---------------------------------------------------------------------------
1887    snd_trident_spdif_open
1888
1889    Description: This routine will open the 4DWave SPDIF device.
1890
1891    Parameters:  substream  - PCM substream class
1892
1893    Returns:     status  - success or failure flag
1894
1895   ---------------------------------------------------------------------------*/
1896
1897 static int snd_trident_spdif_open(struct snd_pcm_substream *substream)
1898 {
1899         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1900         struct snd_trident_voice *voice;
1901         struct snd_pcm_runtime *runtime = substream->runtime;
1902
1903         voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1904         if (voice == NULL)
1905                 return -EAGAIN;
1906         voice->spdif = 1;
1907         voice->substream = substream;
1908         spin_lock_irq(&trident->reg_lock);
1909         trident->spdif_pcm_bits = trident->spdif_bits;
1910         spin_unlock_irq(&trident->reg_lock);
1911
1912         runtime->private_data = voice;
1913         runtime->private_free = snd_trident_pcm_free_substream;
1914         if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
1915                 runtime->hw = snd_trident_spdif;
1916         } else {
1917                 runtime->hw = snd_trident_spdif_7018;
1918         }
1919
1920         trident->spdif_pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1921         snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE |
1922                        SNDRV_CTL_EVENT_MASK_INFO, &trident->spdif_pcm_ctl->id);
1923
1924         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1925         return 0;
1926 }
1927
1928
1929 /*---------------------------------------------------------------------------
1930    snd_trident_spdif_close
1931
1932    Description: This routine will close the 4DWave SPDIF device.
1933
1934    Parameters:  substream  - PCM substream class
1935
1936   ---------------------------------------------------------------------------*/
1937
1938 static int snd_trident_spdif_close(struct snd_pcm_substream *substream)
1939 {
1940         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1941         unsigned int temp;
1942
1943         spin_lock_irq(&trident->reg_lock);
1944         // restore default SPDIF setting
1945         if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
1946                 outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
1947                 outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
1948         } else {
1949                 outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
1950                 temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1951                 if (trident->spdif_ctrl) {
1952                         temp |= SPDIF_EN;
1953                 } else {
1954                         temp &= ~SPDIF_EN;
1955                 }
1956                 outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
1957         }
1958         spin_unlock_irq(&trident->reg_lock);
1959         trident->spdif_pcm_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
1960         snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE |
1961                        SNDRV_CTL_EVENT_MASK_INFO, &trident->spdif_pcm_ctl->id);
1962         return 0;
1963 }
1964
1965 /*---------------------------------------------------------------------------
1966    snd_trident_capture_open
1967
1968    Description: This routine will open the 4DWave capture device.
1969
1970    Parameters:  substream  - PCM substream class
1971
1972    Returns:     status  - success or failure flag
1973
1974   ---------------------------------------------------------------------------*/
1975
1976 static int snd_trident_capture_open(struct snd_pcm_substream *substream)
1977 {
1978         struct snd_trident *trident = snd_pcm_substream_chip(substream);
1979         struct snd_trident_voice *voice;
1980         struct snd_pcm_runtime *runtime = substream->runtime;
1981
1982         voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
1983         if (voice == NULL)
1984                 return -EAGAIN;
1985         voice->capture = 1;
1986         voice->substream = substream;
1987         runtime->private_data = voice;
1988         runtime->private_free = snd_trident_pcm_free_substream;
1989         runtime->hw = snd_trident_capture;
1990         snd_pcm_set_sync(substream);
1991         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1992         return 0;
1993 }
1994
1995 /*---------------------------------------------------------------------------
1996    snd_trident_capture_close
1997
1998    Description: This routine will close the 4DWave capture device. For now
1999                 we will simply free the dma transfer buffer.
2000
2001    Parameters:  substream  - PCM substream class
2002
2003   ---------------------------------------------------------------------------*/
2004 static int snd_trident_capture_close(struct snd_pcm_substream *substream)
2005 {
2006         return 0;
2007 }
2008
2009 /*---------------------------------------------------------------------------
2010    snd_trident_foldback_open
2011
2012    Description: This routine will open the 4DWave foldback capture device.
2013
2014    Parameters:  substream  - PCM substream class
2015
2016    Returns:     status  - success or failure flag
2017
2018   ---------------------------------------------------------------------------*/
2019
2020 static int snd_trident_foldback_open(struct snd_pcm_substream *substream)
2021 {
2022         struct snd_trident *trident = snd_pcm_substream_chip(substream);
2023         struct snd_trident_voice *voice;
2024         struct snd_pcm_runtime *runtime = substream->runtime;
2025
2026         voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
2027         if (voice == NULL)
2028                 return -EAGAIN;
2029         voice->foldback_chan = substream->number;
2030         voice->substream = substream;
2031         runtime->private_data = voice;
2032         runtime->private_free = snd_trident_pcm_free_substream;
2033         runtime->hw = snd_trident_foldback;
2034         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
2035         return 0;
2036 }
2037
2038 /*---------------------------------------------------------------------------
2039    snd_trident_foldback_close
2040
2041    Description: This routine will close the 4DWave foldback capture device.
2042                 For now we will simply free the dma transfer buffer.
2043
2044    Parameters:  substream  - PCM substream class
2045
2046   ---------------------------------------------------------------------------*/
2047 static int snd_trident_foldback_close(struct snd_pcm_substream *substream)
2048 {
2049         struct snd_trident *trident = snd_pcm_substream_chip(substream);
2050         struct snd_trident_voice *voice;
2051         struct snd_pcm_runtime *runtime = substream->runtime;
2052         voice = runtime->private_data;
2053
2054         /* stop capture channel */
2055         spin_lock_irq(&trident->reg_lock);
2056         outb(0x00, TRID_REG(trident, T4D_RCI + voice->foldback_chan));
2057         spin_unlock_irq(&trident->reg_lock);
2058         return 0;
2059 }
2060
2061 /*---------------------------------------------------------------------------
2062    PCM operations
2063   ---------------------------------------------------------------------------*/
2064
2065 static struct snd_pcm_ops snd_trident_playback_ops = {
2066         .open =         snd_trident_playback_open,
2067         .close =        snd_trident_playback_close,
2068         .ioctl =        snd_trident_ioctl,
2069         .hw_params =    snd_trident_hw_params,
2070         .hw_free =      snd_trident_hw_free,
2071         .prepare =      snd_trident_playback_prepare,
2072         .trigger =      snd_trident_trigger,
2073         .pointer =      snd_trident_playback_pointer,
2074 };
2075
2076 static struct snd_pcm_ops snd_trident_nx_playback_ops = {
2077         .open =         snd_trident_playback_open,
2078         .close =        snd_trident_playback_close,
2079         .ioctl =        snd_trident_ioctl,
2080         .hw_params =    snd_trident_hw_params,
2081         .hw_free =      snd_trident_hw_free,
2082         .prepare =      snd_trident_playback_prepare,
2083         .trigger =      snd_trident_trigger,
2084         .pointer =      snd_trident_playback_pointer,
2085         .page =         snd_pcm_sgbuf_ops_page,
2086 };
2087
2088 static struct snd_pcm_ops snd_trident_capture_ops = {
2089         .open =         snd_trident_capture_open,
2090         .close =        snd_trident_capture_close,
2091         .ioctl =        snd_trident_ioctl,
2092         .hw_params =    snd_trident_capture_hw_params,
2093         .hw_free =      snd_trident_hw_free,
2094         .prepare =      snd_trident_capture_prepare,
2095         .trigger =      snd_trident_trigger,
2096         .pointer =      snd_trident_capture_pointer,
2097 };
2098
2099 static struct snd_pcm_ops snd_trident_si7018_capture_ops = {
2100         .open =         snd_trident_capture_open,
2101         .close =        snd_trident_capture_close,
2102         .ioctl =        snd_trident_ioctl,
2103         .hw_params =    snd_trident_si7018_capture_hw_params,
2104         .hw_free =      snd_trident_si7018_capture_hw_free,
2105         .prepare =      snd_trident_si7018_capture_prepare,
2106         .trigger =      snd_trident_trigger,
2107         .pointer =      snd_trident_playback_pointer,
2108 };
2109
2110 static struct snd_pcm_ops snd_trident_foldback_ops = {
2111         .open =         snd_trident_foldback_open,
2112         .close =        snd_trident_foldback_close,
2113         .ioctl =        snd_trident_ioctl,
2114         .hw_params =    snd_trident_hw_params,
2115         .hw_free =      snd_trident_hw_free,
2116         .prepare =      snd_trident_foldback_prepare,
2117         .trigger =      snd_trident_trigger,
2118         .pointer =      snd_trident_playback_pointer,
2119 };
2120
2121 static struct snd_pcm_ops snd_trident_nx_foldback_ops = {
2122         .open =         snd_trident_foldback_open,
2123         .close =        snd_trident_foldback_close,
2124         .ioctl =        snd_trident_ioctl,
2125         .hw_params =    snd_trident_hw_params,
2126         .hw_free =      snd_trident_hw_free,
2127         .prepare =      snd_trident_foldback_prepare,
2128         .trigger =      snd_trident_trigger,
2129         .pointer =      snd_trident_playback_pointer,
2130         .page =         snd_pcm_sgbuf_ops_page,
2131 };
2132
2133 static struct snd_pcm_ops snd_trident_spdif_ops = {
2134         .open =         snd_trident_spdif_open,
2135         .close =        snd_trident_spdif_close,
2136         .ioctl =        snd_trident_ioctl,
2137         .hw_params =    snd_trident_spdif_hw_params,
2138         .hw_free =      snd_trident_hw_free,
2139         .prepare =      snd_trident_spdif_prepare,
2140         .trigger =      snd_trident_trigger,
2141         .pointer =      snd_trident_spdif_pointer,
2142 };
2143
2144 static struct snd_pcm_ops snd_trident_spdif_7018_ops = {
2145         .open =         snd_trident_spdif_open,
2146         .close =        snd_trident_spdif_close,
2147         .ioctl =        snd_trident_ioctl,
2148         .hw_params =    snd_trident_spdif_hw_params,
2149         .hw_free =      snd_trident_hw_free,
2150         .prepare =      snd_trident_spdif_prepare,
2151         .trigger =      snd_trident_trigger,
2152         .pointer =      snd_trident_playback_pointer,
2153 };
2154
2155 /*---------------------------------------------------------------------------
2156    snd_trident_pcm
2157
2158    Description: This routine registers the 4DWave device for PCM support.
2159
2160    Paramters:   trident - pointer to target device class for 4DWave.
2161
2162    Returns:     None
2163
2164   ---------------------------------------------------------------------------*/
2165
2166 int __devinit snd_trident_pcm(struct snd_trident * trident,
2167                               int device, struct snd_pcm ** rpcm)
2168 {
2169         struct snd_pcm *pcm;
2170         int err;
2171
2172         if (rpcm)
2173                 *rpcm = NULL;
2174         if ((err = snd_pcm_new(trident->card, "trident_dx_nx", device, trident->ChanPCM, 1, &pcm)) < 0)
2175                 return err;
2176
2177         pcm->private_data = trident;
2178
2179         if (trident->tlb.entries) {
2180                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_nx_playback_ops);
2181         } else {
2182                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_playback_ops);
2183         }
2184         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
2185                         trident->device != TRIDENT_DEVICE_ID_SI7018 ?
2186                         &snd_trident_capture_ops :
2187                         &snd_trident_si7018_capture_ops);
2188
2189         pcm->info_flags = 0;
2190         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
2191         strcpy(pcm->name, "Trident 4DWave");
2192         trident->pcm = pcm;
2193
2194         if (trident->tlb.entries) {
2195                 struct snd_pcm_substream *substream;
2196                 for (substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; substream; substream = substream->next)
2197                         snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV_SG,
2198                                                       snd_dma_pci_data(trident->pci),
2199                                                       64*1024, 128*1024);
2200                 snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
2201                                               SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(trident->pci),
2202                                               64*1024, 128*1024);
2203         } else {
2204                 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
2205                                                       snd_dma_pci_data(trident->pci), 64*1024, 128*1024);
2206         }
2207
2208         if (rpcm)
2209                 *rpcm = pcm;
2210         return 0;
2211 }
2212
2213 /*---------------------------------------------------------------------------
2214    snd_trident_foldback_pcm
2215
2216    Description: This routine registers the 4DWave device for foldback PCM support.
2217
2218    Paramters:   trident - pointer to target device class for 4DWave.
2219
2220    Returns:     None
2221
2222   ---------------------------------------------------------------------------*/
2223
2224 int __devinit snd_trident_foldback_pcm(struct snd_trident * trident,
2225                                        int device, struct snd_pcm ** rpcm)
2226 {
2227         struct snd_pcm *foldback;
2228         int err;
2229         int num_chan = 3;
2230         struct snd_pcm_substream *substream;
2231
2232         if (rpcm)
2233                 *rpcm = NULL;
2234         if (trident->device == TRIDENT_DEVICE_ID_NX)
2235                 num_chan = 4;
2236         if ((err = snd_pcm_new(trident->card, "trident_dx_nx", device, 0, num_chan, &foldback)) < 0)
2237                 return err;
2238
2239         foldback->private_data = trident;
2240         if (trident->tlb.entries)
2241                 snd_pcm_set_ops(foldback, SNDRV_PCM_STREAM_CAPTURE, &snd_trident_nx_foldback_ops);
2242         else
2243                 snd_pcm_set_ops(foldback, SNDRV_PCM_STREAM_CAPTURE, &snd_trident_foldback_ops);
2244         foldback->info_flags = 0;
2245         strcpy(foldback->name, "Trident 4DWave");
2246         substream = foldback->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
2247         strcpy(substream->name, "Front Mixer");
2248         substream = substream->next;
2249         strcpy(substream->name, "Reverb Mixer");
2250         substream = substream->next;
2251         strcpy(substream->name, "Chorus Mixer");
2252         if (num_chan == 4) {
2253                 substream = substream->next;
2254                 strcpy(substream->name, "Second AC'97 ADC");
2255         }
2256         trident->foldback = foldback;
2257
2258         if (trident->tlb.entries)
2259                 snd_pcm_lib_preallocate_pages_for_all(foldback, SNDRV_DMA_TYPE_DEV_SG,
2260                                                       snd_dma_pci_data(trident->pci), 0, 128*1024);
2261         else
2262                 snd_pcm_lib_preallocate_pages_for_all(foldback, SNDRV_DMA_TYPE_DEV,
2263                                                       snd_dma_pci_data(trident->pci), 64*1024, 128*1024);
2264
2265         if (rpcm)
2266                 *rpcm = foldback;
2267         return 0;
2268 }
2269
2270 /*---------------------------------------------------------------------------
2271    snd_trident_spdif
2272
2273    Description: This routine registers the 4DWave-NX device for SPDIF support.
2274
2275    Paramters:   trident - pointer to target device class for 4DWave-NX.
2276
2277    Returns:     None
2278
2279   ---------------------------------------------------------------------------*/
2280
2281 int __devinit snd_trident_spdif_pcm(struct snd_trident * trident,
2282                                     int device, struct snd_pcm ** rpcm)
2283 {
2284         struct snd_pcm *spdif;
2285         int err;
2286
2287         if (rpcm)
2288                 *rpcm = NULL;
2289         if ((err = snd_pcm_new(trident->card, "trident_dx_nx IEC958", device, 1, 0, &spdif)) < 0)
2290                 return err;
2291
2292         spdif->private_data = trident;
2293         if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2294                 snd_pcm_set_ops(spdif, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_spdif_ops);
2295         } else {
2296                 snd_pcm_set_ops(spdif, SNDRV_PCM_STREAM_PLAYBACK, &snd_trident_spdif_7018_ops);
2297         }
2298         spdif->info_flags = 0;
2299         strcpy(spdif->name, "Trident 4DWave IEC958");
2300         trident->spdif = spdif;
2301
2302         snd_pcm_lib_preallocate_pages_for_all(spdif, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(trident->pci), 64*1024, 128*1024);
2303
2304         if (rpcm)
2305                 *rpcm = spdif;
2306         return 0;
2307 }
2308
2309 /*
2310  *  Mixer part
2311  */
2312
2313
2314 /*---------------------------------------------------------------------------
2315     snd_trident_spdif_control
2316
2317     Description: enable/disable S/PDIF out from ac97 mixer
2318   ---------------------------------------------------------------------------*/
2319
2320 static int snd_trident_spdif_control_info(struct snd_kcontrol *kcontrol,
2321                                           struct snd_ctl_elem_info *uinfo)
2322 {
2323         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2324         uinfo->count = 1;
2325         uinfo->value.integer.min = 0;
2326         uinfo->value.integer.max = 1;
2327         return 0;
2328 }
2329
2330 static int snd_trident_spdif_control_get(struct snd_kcontrol *kcontrol,
2331                                          struct snd_ctl_elem_value *ucontrol)
2332 {
2333         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2334         unsigned char val;
2335
2336         spin_lock_irq(&trident->reg_lock);
2337         val = trident->spdif_ctrl;
2338         ucontrol->value.integer.value[0] = val == kcontrol->private_value;
2339         spin_unlock_irq(&trident->reg_lock);
2340         return 0;
2341 }
2342
2343 static int snd_trident_spdif_control_put(struct snd_kcontrol *kcontrol,
2344                                          struct snd_ctl_elem_value *ucontrol)
2345 {
2346         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2347         unsigned char val;
2348         int change;
2349
2350         val = ucontrol->value.integer.value[0] ? (unsigned char) kcontrol->private_value : 0x00;
2351         spin_lock_irq(&trident->reg_lock);
2352         /* S/PDIF C Channel bits 0-31 : 48khz, SCMS disabled */
2353         change = trident->spdif_ctrl != val;
2354         trident->spdif_ctrl = val;
2355         if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2356                 if ((inb(TRID_REG(trident, NX_SPCTRL_SPCSO + 3)) & 0x10) == 0) {
2357                         outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
2358                         outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
2359                 }
2360         } else {
2361                 if (trident->spdif == NULL) {
2362                         unsigned int temp;
2363                         outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
2364                         temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & ~SPDIF_EN;
2365                         if (val)
2366                                 temp |= SPDIF_EN;
2367                         outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
2368                 }
2369         }
2370         spin_unlock_irq(&trident->reg_lock);
2371         return change;
2372 }
2373
2374 static struct snd_kcontrol_new snd_trident_spdif_control __devinitdata =
2375 {
2376         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2377         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
2378         .info =         snd_trident_spdif_control_info,
2379         .get =          snd_trident_spdif_control_get,
2380         .put =          snd_trident_spdif_control_put,
2381         .private_value = 0x28,
2382 };
2383
2384 /*---------------------------------------------------------------------------
2385     snd_trident_spdif_default
2386
2387     Description: put/get the S/PDIF default settings
2388   ---------------------------------------------------------------------------*/
2389
2390 static int snd_trident_spdif_default_info(struct snd_kcontrol *kcontrol,
2391                                           struct snd_ctl_elem_info *uinfo)
2392 {
2393         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2394         uinfo->count = 1;
2395         return 0;
2396 }
2397
2398 static int snd_trident_spdif_default_get(struct snd_kcontrol *kcontrol,
2399                                          struct snd_ctl_elem_value *ucontrol)
2400 {
2401         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2402
2403         spin_lock_irq(&trident->reg_lock);
2404         ucontrol->value.iec958.status[0] = (trident->spdif_bits >> 0) & 0xff;
2405         ucontrol->value.iec958.status[1] = (trident->spdif_bits >> 8) & 0xff;
2406         ucontrol->value.iec958.status[2] = (trident->spdif_bits >> 16) & 0xff;
2407         ucontrol->value.iec958.status[3] = (trident->spdif_bits >> 24) & 0xff;
2408         spin_unlock_irq(&trident->reg_lock);
2409         return 0;
2410 }
2411
2412 static int snd_trident_spdif_default_put(struct snd_kcontrol *kcontrol,
2413                                          struct snd_ctl_elem_value *ucontrol)
2414 {
2415         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2416         unsigned int val;
2417         int change;
2418
2419         val = (ucontrol->value.iec958.status[0] << 0) |
2420               (ucontrol->value.iec958.status[1] << 8) |
2421               (ucontrol->value.iec958.status[2] << 16) |
2422               (ucontrol->value.iec958.status[3] << 24);
2423         spin_lock_irq(&trident->reg_lock);
2424         change = trident->spdif_bits != val;
2425         trident->spdif_bits = val;
2426         if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2427                 if ((inb(TRID_REG(trident, NX_SPCTRL_SPCSO + 3)) & 0x10) == 0)
2428                         outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
2429         } else {
2430                 if (trident->spdif == NULL)
2431                         outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
2432         }
2433         spin_unlock_irq(&trident->reg_lock);
2434         return change;
2435 }
2436
2437 static struct snd_kcontrol_new snd_trident_spdif_default __devinitdata =
2438 {
2439         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2440         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
2441         .info =         snd_trident_spdif_default_info,
2442         .get =          snd_trident_spdif_default_get,
2443         .put =          snd_trident_spdif_default_put
2444 };
2445
2446 /*---------------------------------------------------------------------------
2447     snd_trident_spdif_mask
2448
2449     Description: put/get the S/PDIF mask
2450   ---------------------------------------------------------------------------*/
2451
2452 static int snd_trident_spdif_mask_info(struct snd_kcontrol *kcontrol,
2453                                        struct snd_ctl_elem_info *uinfo)
2454 {
2455         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2456         uinfo->count = 1;
2457         return 0;
2458 }
2459
2460 static int snd_trident_spdif_mask_get(struct snd_kcontrol *kcontrol,
2461                                       struct snd_ctl_elem_value *ucontrol)
2462 {
2463         ucontrol->value.iec958.status[0] = 0xff;
2464         ucontrol->value.iec958.status[1] = 0xff;
2465         ucontrol->value.iec958.status[2] = 0xff;
2466         ucontrol->value.iec958.status[3] = 0xff;
2467         return 0;
2468 }
2469
2470 static struct snd_kcontrol_new snd_trident_spdif_mask __devinitdata =
2471 {
2472         .access =       SNDRV_CTL_ELEM_ACCESS_READ,
2473         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2474         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK),
2475         .info =         snd_trident_spdif_mask_info,
2476         .get =          snd_trident_spdif_mask_get,
2477 };
2478
2479 /*---------------------------------------------------------------------------
2480     snd_trident_spdif_stream
2481
2482     Description: put/get the S/PDIF stream settings
2483   ---------------------------------------------------------------------------*/
2484
2485 static int snd_trident_spdif_stream_info(struct snd_kcontrol *kcontrol,
2486                                          struct snd_ctl_elem_info *uinfo)
2487 {
2488         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
2489         uinfo->count = 1;
2490         return 0;
2491 }
2492
2493 static int snd_trident_spdif_stream_get(struct snd_kcontrol *kcontrol,
2494                                         struct snd_ctl_elem_value *ucontrol)
2495 {
2496         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2497
2498         spin_lock_irq(&trident->reg_lock);
2499         ucontrol->value.iec958.status[0] = (trident->spdif_pcm_bits >> 0) & 0xff;
2500         ucontrol->value.iec958.status[1] = (trident->spdif_pcm_bits >> 8) & 0xff;
2501         ucontrol->value.iec958.status[2] = (trident->spdif_pcm_bits >> 16) & 0xff;
2502         ucontrol->value.iec958.status[3] = (trident->spdif_pcm_bits >> 24) & 0xff;
2503         spin_unlock_irq(&trident->reg_lock);
2504         return 0;
2505 }
2506
2507 static int snd_trident_spdif_stream_put(struct snd_kcontrol *kcontrol,
2508                                         struct snd_ctl_elem_value *ucontrol)
2509 {
2510         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2511         unsigned int val;
2512         int change;
2513
2514         val = (ucontrol->value.iec958.status[0] << 0) |
2515               (ucontrol->value.iec958.status[1] << 8) |
2516               (ucontrol->value.iec958.status[2] << 16) |
2517               (ucontrol->value.iec958.status[3] << 24);
2518         spin_lock_irq(&trident->reg_lock);
2519         change = trident->spdif_pcm_bits != val;
2520         trident->spdif_pcm_bits = val;
2521         if (trident->spdif != NULL) {
2522                 if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
2523                         outl(trident->spdif_pcm_bits, TRID_REG(trident, NX_SPCSTATUS));
2524                 } else {
2525                         outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
2526                 }
2527         }
2528         spin_unlock_irq(&trident->reg_lock);
2529         return change;
2530 }
2531
2532 static struct snd_kcontrol_new snd_trident_spdif_stream __devinitdata =
2533 {
2534         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2535         .iface =        SNDRV_CTL_ELEM_IFACE_PCM,
2536         .name =         SNDRV_CTL_NAME_IEC958("",PLAYBACK,PCM_STREAM),
2537         .info =         snd_trident_spdif_stream_info,
2538         .get =          snd_trident_spdif_stream_get,
2539         .put =          snd_trident_spdif_stream_put
2540 };
2541
2542 /*---------------------------------------------------------------------------
2543     snd_trident_ac97_control
2544
2545     Description: enable/disable rear path for ac97
2546   ---------------------------------------------------------------------------*/
2547
2548 static int snd_trident_ac97_control_info(struct snd_kcontrol *kcontrol,
2549                                          struct snd_ctl_elem_info *uinfo)
2550 {
2551         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2552         uinfo->count = 1;
2553         uinfo->value.integer.min = 0;
2554         uinfo->value.integer.max = 1;
2555         return 0;
2556 }
2557
2558 static int snd_trident_ac97_control_get(struct snd_kcontrol *kcontrol,
2559                                         struct snd_ctl_elem_value *ucontrol)
2560 {
2561         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2562         unsigned char val;
2563
2564         spin_lock_irq(&trident->reg_lock);
2565         val = trident->ac97_ctrl = inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
2566         ucontrol->value.integer.value[0] = (val & (1 << kcontrol->private_value)) ? 1 : 0;
2567         spin_unlock_irq(&trident->reg_lock);
2568         return 0;
2569 }
2570
2571 static int snd_trident_ac97_control_put(struct snd_kcontrol *kcontrol,
2572                                         struct snd_ctl_elem_value *ucontrol)
2573 {
2574         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2575         unsigned char val;
2576         int change = 0;
2577
2578         spin_lock_irq(&trident->reg_lock);
2579         val = trident->ac97_ctrl = inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
2580         val &= ~(1 << kcontrol->private_value);
2581         if (ucontrol->value.integer.value[0])
2582                 val |= 1 << kcontrol->private_value;
2583         change = val != trident->ac97_ctrl;
2584         trident->ac97_ctrl = val;
2585         outl(trident->ac97_ctrl = val, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
2586         spin_unlock_irq(&trident->reg_lock);
2587         return change;
2588 }
2589
2590 static struct snd_kcontrol_new snd_trident_ac97_rear_control __devinitdata =
2591 {
2592         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2593         .name =         "Rear Path",
2594         .info =         snd_trident_ac97_control_info,
2595         .get =          snd_trident_ac97_control_get,
2596         .put =          snd_trident_ac97_control_put,
2597         .private_value = 4,
2598 };
2599
2600 /*---------------------------------------------------------------------------
2601     snd_trident_vol_control
2602
2603     Description: wave & music volume control
2604   ---------------------------------------------------------------------------*/
2605
2606 static int snd_trident_vol_control_info(struct snd_kcontrol *kcontrol,
2607                                         struct snd_ctl_elem_info *uinfo)
2608 {
2609         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2610         uinfo->count = 2;
2611         uinfo->value.integer.min = 0;
2612         uinfo->value.integer.max = 255;
2613         return 0;
2614 }
2615
2616 static int snd_trident_vol_control_get(struct snd_kcontrol *kcontrol,
2617                                        struct snd_ctl_elem_value *ucontrol)
2618 {
2619         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2620         unsigned int val;
2621
2622         val = trident->musicvol_wavevol;
2623         ucontrol->value.integer.value[0] = 255 - ((val >> kcontrol->private_value) & 0xff);
2624         ucontrol->value.integer.value[1] = 255 - ((val >> (kcontrol->private_value + 8)) & 0xff);
2625         return 0;
2626 }
2627
2628 static const DECLARE_TLV_DB_SCALE(db_scale_gvol, -6375, 25, 0);
2629
2630 static int snd_trident_vol_control_put(struct snd_kcontrol *kcontrol,
2631                                        struct snd_ctl_elem_value *ucontrol)
2632 {
2633         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2634         unsigned int val;
2635         int change = 0;
2636
2637         spin_lock_irq(&trident->reg_lock);
2638         val = trident->musicvol_wavevol;
2639         val &= ~(0xffff << kcontrol->private_value);
2640         val |= ((255 - (ucontrol->value.integer.value[0] & 0xff)) |
2641                 ((255 - (ucontrol->value.integer.value[1] & 0xff)) << 8)) << kcontrol->private_value;
2642         change = val != trident->musicvol_wavevol;
2643         outl(trident->musicvol_wavevol = val, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
2644         spin_unlock_irq(&trident->reg_lock);
2645         return change;
2646 }
2647
2648 static struct snd_kcontrol_new snd_trident_vol_music_control __devinitdata =
2649 {
2650         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2651         .name =         "Music Playback Volume",
2652         .info =         snd_trident_vol_control_info,
2653         .get =          snd_trident_vol_control_get,
2654         .put =          snd_trident_vol_control_put,
2655         .private_value = 16,
2656         .tlv = { .p = db_scale_gvol },
2657 };
2658
2659 static struct snd_kcontrol_new snd_trident_vol_wave_control __devinitdata =
2660 {
2661         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2662         .name =         "Wave Playback Volume",
2663         .info =         snd_trident_vol_control_info,
2664         .get =          snd_trident_vol_control_get,
2665         .put =          snd_trident_vol_control_put,
2666         .private_value = 0,
2667         .tlv = { .p = db_scale_gvol },
2668 };
2669
2670 /*---------------------------------------------------------------------------
2671     snd_trident_pcm_vol_control
2672
2673     Description: PCM front volume control
2674   ---------------------------------------------------------------------------*/
2675
2676 static int snd_trident_pcm_vol_control_info(struct snd_kcontrol *kcontrol,
2677                                             struct snd_ctl_elem_info *uinfo)
2678 {
2679         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2680
2681         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2682         uinfo->count = 1;
2683         uinfo->value.integer.min = 0;
2684         uinfo->value.integer.max = 255;
2685         if (trident->device == TRIDENT_DEVICE_ID_SI7018)
2686                 uinfo->value.integer.max = 1023;
2687         return 0;
2688 }
2689
2690 static int snd_trident_pcm_vol_control_get(struct snd_kcontrol *kcontrol,
2691                                            struct snd_ctl_elem_value *ucontrol)
2692 {
2693         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2694         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2695
2696         if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
2697                 ucontrol->value.integer.value[0] = 1023 - mix->vol;
2698         } else {
2699                 ucontrol->value.integer.value[0] = 255 - (mix->vol>>2);
2700         }
2701         return 0;
2702 }
2703
2704 static int snd_trident_pcm_vol_control_put(struct snd_kcontrol *kcontrol,
2705                                            struct snd_ctl_elem_value *ucontrol)
2706 {
2707         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2708         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2709         unsigned int val;
2710         int change = 0;
2711
2712         if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
2713                 val = 1023 - (ucontrol->value.integer.value[0] & 1023);
2714         } else {
2715                 val = (255 - (ucontrol->value.integer.value[0] & 255)) << 2;
2716         }
2717         spin_lock_irq(&trident->reg_lock);
2718         change = val != mix->vol;
2719         mix->vol = val;
2720         if (mix->voice != NULL)
2721                 snd_trident_write_vol_reg(trident, mix->voice, val);
2722         spin_unlock_irq(&trident->reg_lock);
2723         return change;
2724 }
2725
2726 static struct snd_kcontrol_new snd_trident_pcm_vol_control __devinitdata =
2727 {
2728         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2729         .name =         "PCM Front Playback Volume",
2730         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2731         .count =        32,
2732         .info =         snd_trident_pcm_vol_control_info,
2733         .get =          snd_trident_pcm_vol_control_get,
2734         .put =          snd_trident_pcm_vol_control_put,
2735         /* FIXME: no tlv yet */
2736 };
2737
2738 /*---------------------------------------------------------------------------
2739     snd_trident_pcm_pan_control
2740
2741     Description: PCM front pan control
2742   ---------------------------------------------------------------------------*/
2743
2744 static int snd_trident_pcm_pan_control_info(struct snd_kcontrol *kcontrol,
2745                                             struct snd_ctl_elem_info *uinfo)
2746 {
2747         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2748         uinfo->count = 1;
2749         uinfo->value.integer.min = 0;
2750         uinfo->value.integer.max = 127;
2751         return 0;
2752 }
2753
2754 static int snd_trident_pcm_pan_control_get(struct snd_kcontrol *kcontrol,
2755                                            struct snd_ctl_elem_value *ucontrol)
2756 {
2757         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2758         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2759
2760         ucontrol->value.integer.value[0] = mix->pan;
2761         if (ucontrol->value.integer.value[0] & 0x40) {
2762                 ucontrol->value.integer.value[0] = (0x3f - (ucontrol->value.integer.value[0] & 0x3f));
2763         } else {
2764                 ucontrol->value.integer.value[0] |= 0x40;
2765         }
2766         return 0;
2767 }
2768
2769 static int snd_trident_pcm_pan_control_put(struct snd_kcontrol *kcontrol,
2770                                            struct snd_ctl_elem_value *ucontrol)
2771 {
2772         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2773         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2774         unsigned char val;
2775         int change = 0;
2776
2777         if (ucontrol->value.integer.value[0] & 0x40)
2778                 val = ucontrol->value.integer.value[0] & 0x3f;
2779         else
2780                 val = (0x3f - (ucontrol->value.integer.value[0] & 0x3f)) | 0x40;
2781         spin_lock_irq(&trident->reg_lock);
2782         change = val != mix->pan;
2783         mix->pan = val;
2784         if (mix->voice != NULL)
2785                 snd_trident_write_pan_reg(trident, mix->voice, val);
2786         spin_unlock_irq(&trident->reg_lock);
2787         return change;
2788 }
2789
2790 static struct snd_kcontrol_new snd_trident_pcm_pan_control __devinitdata =
2791 {
2792         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2793         .name =         "PCM Pan Playback Control",
2794         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2795         .count =        32,
2796         .info =         snd_trident_pcm_pan_control_info,
2797         .get =          snd_trident_pcm_pan_control_get,
2798         .put =          snd_trident_pcm_pan_control_put,
2799 };
2800
2801 /*---------------------------------------------------------------------------
2802     snd_trident_pcm_rvol_control
2803
2804     Description: PCM reverb volume control
2805   ---------------------------------------------------------------------------*/
2806
2807 static int snd_trident_pcm_rvol_control_info(struct snd_kcontrol *kcontrol,
2808                                              struct snd_ctl_elem_info *uinfo)
2809 {
2810         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2811         uinfo->count = 1;
2812         uinfo->value.integer.min = 0;
2813         uinfo->value.integer.max = 127;
2814         return 0;
2815 }
2816
2817 static int snd_trident_pcm_rvol_control_get(struct snd_kcontrol *kcontrol,
2818                                             struct snd_ctl_elem_value *ucontrol)
2819 {
2820         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2821         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2822
2823         ucontrol->value.integer.value[0] = 127 - mix->rvol;
2824         return 0;
2825 }
2826
2827 static int snd_trident_pcm_rvol_control_put(struct snd_kcontrol *kcontrol,
2828                                             struct snd_ctl_elem_value *ucontrol)
2829 {
2830         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2831         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2832         unsigned short val;
2833         int change = 0;
2834
2835         val = 0x7f - (ucontrol->value.integer.value[0] & 0x7f);
2836         spin_lock_irq(&trident->reg_lock);
2837         change = val != mix->rvol;
2838         mix->rvol = val;
2839         if (mix->voice != NULL)
2840                 snd_trident_write_rvol_reg(trident, mix->voice, val);
2841         spin_unlock_irq(&trident->reg_lock);
2842         return change;
2843 }
2844
2845 static const DECLARE_TLV_DB_SCALE(db_scale_crvol, -3175, 25, 1);
2846
2847 static struct snd_kcontrol_new snd_trident_pcm_rvol_control __devinitdata =
2848 {
2849         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2850         .name =         "PCM Reverb Playback Volume",
2851         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2852         .count =        32,
2853         .info =         snd_trident_pcm_rvol_control_info,
2854         .get =          snd_trident_pcm_rvol_control_get,
2855         .put =          snd_trident_pcm_rvol_control_put,
2856         .tlv = { .p = db_scale_crvol },
2857 };
2858
2859 /*---------------------------------------------------------------------------
2860     snd_trident_pcm_cvol_control
2861
2862     Description: PCM chorus volume control
2863   ---------------------------------------------------------------------------*/
2864
2865 static int snd_trident_pcm_cvol_control_info(struct snd_kcontrol *kcontrol,
2866                                              struct snd_ctl_elem_info *uinfo)
2867 {
2868         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2869         uinfo->count = 1;
2870         uinfo->value.integer.min = 0;
2871         uinfo->value.integer.max = 127;
2872         return 0;
2873 }
2874
2875 static int snd_trident_pcm_cvol_control_get(struct snd_kcontrol *kcontrol,
2876                                             struct snd_ctl_elem_value *ucontrol)
2877 {
2878         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2879         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2880
2881         ucontrol->value.integer.value[0] = 127 - mix->cvol;
2882         return 0;
2883 }
2884
2885 static int snd_trident_pcm_cvol_control_put(struct snd_kcontrol *kcontrol,
2886                                             struct snd_ctl_elem_value *ucontrol)
2887 {
2888         struct snd_trident *trident = snd_kcontrol_chip(kcontrol);
2889         struct snd_trident_pcm_mixer *mix = &trident->pcm_mixer[snd_ctl_get_ioffnum(kcontrol, &ucontrol->id)];
2890         unsigned short val;
2891         int change = 0;
2892
2893         val = 0x7f - (ucontrol->value.integer.value[0] & 0x7f);
2894         spin_lock_irq(&trident->reg_lock);
2895         change = val != mix->cvol;
2896         mix->cvol = val;
2897         if (mix->voice != NULL)
2898                 snd_trident_write_cvol_reg(trident, mix->voice, val);
2899         spin_unlock_irq(&trident->reg_lock);
2900         return change;
2901 }
2902
2903 static struct snd_kcontrol_new snd_trident_pcm_cvol_control __devinitdata =
2904 {
2905         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
2906         .name =         "PCM Chorus Playback Volume",
2907         .access =       SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_INACTIVE,
2908         .count =        32,
2909         .info =         snd_trident_pcm_cvol_control_info,
2910         .get =          snd_trident_pcm_cvol_control_get,
2911         .put =          snd_trident_pcm_cvol_control_put,
2912         .tlv = { .p = db_scale_crvol },
2913 };
2914
2915 static void snd_trident_notify_pcm_change1(struct snd_card *card,
2916                                            struct snd_kcontrol *kctl,
2917                                            int num, int activate)
2918 {
2919         struct snd_ctl_elem_id id;
2920
2921         if (! kctl)
2922                 return;
2923         if (activate)
2924                 kctl->vd[num].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2925         else
2926                 kctl->vd[num].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
2927         snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE |
2928                        SNDRV_CTL_EVENT_MASK_INFO,
2929                        snd_ctl_build_ioff(&id, kctl, num));
2930 }
2931
2932 static void snd_trident_notify_pcm_change(struct snd_trident *trident,
2933                                           struct snd_trident_pcm_mixer *tmix,
2934                                           int num, int activate)
2935 {
2936         snd_trident_notify_pcm_change1(trident->card, trident->ctl_vol, num, activate);
2937         snd_trident_notify_pcm_change1(trident->card, trident->ctl_pan, num, activate);
2938         snd_trident_notify_pcm_change1(trident->card, trident->ctl_rvol, num, activate);
2939         snd_trident_notify_pcm_change1(trident->card, trident->ctl_cvol, num, activate);
2940 }
2941
2942 static int snd_trident_pcm_mixer_build(struct snd_trident *trident,
2943                                        struct snd_trident_voice *voice,
2944                                        struct snd_pcm_substream *substream)
2945 {
2946         struct snd_trident_pcm_mixer *tmix;
2947
2948         snd_assert(trident != NULL && voice != NULL && substream != NULL, return -EINVAL);
2949         tmix = &trident->pcm_mixer[substream->number];
2950         tmix->voice = voice;
2951         tmix->vol = T4D_DEFAULT_PCM_VOL;
2952         tmix->pan = T4D_DEFAULT_PCM_PAN;
2953         tmix->rvol = T4D_DEFAULT_PCM_RVOL;
2954         tmix->cvol = T4D_DEFAULT_PCM_CVOL;
2955         snd_trident_notify_pcm_change(trident, tmix, substream->number, 1);
2956         return 0;
2957 }
2958
2959 static int snd_trident_pcm_mixer_free(struct snd_trident *trident, struct snd_trident_voice *voice, struct snd_pcm_substream *substream)
2960 {
2961         struct snd_trident_pcm_mixer *tmix;
2962
2963         snd_assert(trident != NULL && substream != NULL, return -EINVAL);
2964         tmix = &trident->pcm_mixer[substream->number];
2965         tmix->voice = NULL;
2966         snd_trident_notify_pcm_change(trident, tmix, substream->number, 0);
2967         return 0;
2968 }
2969
2970 /*---------------------------------------------------------------------------
2971    snd_trident_mixer
2972
2973    Description: This routine registers the 4DWave device for mixer support.
2974
2975    Paramters:   trident - pointer to target device class for 4DWave.
2976
2977    Returns:     None
2978
2979   ---------------------------------------------------------------------------*/
2980
2981 static int __devinit snd_trident_mixer(struct snd_trident * trident, int pcm_spdif_device)
2982 {
2983         struct snd_ac97_template _ac97;
2984         struct snd_card *card = trident->card;
2985         struct snd_kcontrol *kctl;
2986         struct snd_ctl_elem_value *uctl;
2987         int idx, err, retries = 2;
2988         static struct snd_ac97_bus_ops ops = {
2989                 .write = snd_trident_codec_write,
2990                 .read = snd_trident_codec_read,
2991         };
2992
2993         uctl = kzalloc(sizeof(*uctl), GFP_KERNEL);
2994         if (!uctl)
2995                 return -ENOMEM;
2996
2997         if ((err = snd_ac97_bus(trident->card, 0, &ops, NULL, &trident->ac97_bus)) < 0)
2998                 goto __out;
2999
3000         memset(&_ac97, 0, sizeof(_ac97));
3001         _ac97.private_data = trident;
3002         trident->ac97_detect = 1;
3003
3004       __again:
3005         if ((err = snd_ac97_mixer(trident->ac97_bus, &_ac97, &trident->ac97)) < 0) {
3006                 if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
3007                         if ((err = snd_trident_sis_reset(trident)) < 0)
3008                                 goto __out;
3009                         if (retries-- > 0)
3010                                 goto __again;
3011                         err = -EIO;
3012                 }
3013                 goto __out;
3014         }
3015
3016         /* secondary codec? */
3017         if (trident->device == TRIDENT_DEVICE_ID_SI7018 &&
3018             (inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & SI_AC97_PRIMARY_READY) != 0) {
3019                 _ac97.num = 1;
3020                 err = snd_ac97_mixer(trident->ac97_bus, &_ac97, &trident->ac97_sec);
3021                 if (err < 0)
3022                         snd_printk(KERN_ERR "SI7018: the secondary codec - invalid access\n");
3023 #if 0   // only for my testing purpose --jk
3024                 {
3025                         struct snd_ac97 *mc97;
3026                         err = snd_ac97_modem(trident->card, &_ac97, &mc97);
3027                         if (err < 0)
3028                                 snd_printk(KERN_ERR "snd_ac97_modem returned error %i\n", err);
3029                 }
3030 #endif
3031         }
3032
3033         trident->ac97_detect = 0;
3034
3035         if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
3036                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_trident_vol_wave_control, trident))) < 0)
3037                         goto __out;
3038                 kctl->put(kctl, uctl);
3039                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_trident_vol_music_control, trident))) < 0)
3040                         goto __out;
3041                 kctl->put(kctl, uctl);
3042                 outl(trident->musicvol_wavevol = 0x00000000, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
3043         } else {
3044                 outl(trident->musicvol_wavevol = 0xffff0000, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
3045         }
3046
3047         for (idx = 0; idx < 32; idx++) {
3048                 struct snd_trident_pcm_mixer *tmix;
3049
3050                 tmix = &trident->pcm_mixer[idx];
3051                 tmix->voice = NULL;
3052         }
3053         if ((trident->ctl_vol = snd_ctl_new1(&snd_trident_pcm_vol_control, trident)) == NULL)
3054                 goto __nomem;
3055         if ((err = snd_ctl_add(card, trident->ctl_vol)))
3056                 goto __out;
3057
3058         if ((trident->ctl_pan = snd_ctl_new1(&snd_trident_pcm_pan_control, trident)) == NULL)
3059                 goto __nomem;
3060         if ((err = snd_ctl_add(card, trident->ctl_pan)))
3061                 goto __out;
3062
3063         if ((trident->ctl_rvol = snd_ctl_new1(&snd_trident_pcm_rvol_control, trident)) == NULL)
3064                 goto __nomem;
3065         if ((err = snd_ctl_add(card, trident->ctl_rvol)))
3066                 goto __out;
3067
3068         if ((trident->ctl_cvol = snd_ctl_new1(&snd_trident_pcm_cvol_control, trident)) == NULL)
3069                 goto __nomem;
3070         if ((err = snd_ctl_add(card, trident->ctl_cvol)))
3071                 goto __out;
3072
3073         if (trident->device == TRIDENT_DEVICE_ID_NX) {
3074                 if ((err = snd_ctl_add(card, kctl = snd_ctl_new1(&snd_trident_ac97_rear_control, trident))) < 0)
3075                         goto __out;
3076                 kctl->put(kctl, uctl);
3077         }
3078         if (trident->device == TRIDENT_DEVICE_ID_NX || trident->device == TRIDENT_DEVICE_ID_SI7018) {
3079
3080                 kctl = snd_ctl_new1(&snd_trident_spdif_control, trident);
3081                 if (kctl == NULL) {
3082                         err = -ENOMEM;
3083                         goto __out;
3084                 }
3085                 if (trident->ac97->ext_id & AC97_EI_SPDIF)
3086                         kctl->id.index++;
3087                 if (trident->ac97_sec && (trident->ac97_sec->ext_id & AC97_EI_SPDIF))
3088                         kctl->id.index++;
3089                 idx = kctl->id.index;
3090                 if ((err = snd_ctl_add(card, kctl)) < 0)
3091                         goto __out;
3092                 kctl->put(kctl, uctl);
3093
3094                 kctl = snd_ctl_new1(&snd_trident_spdif_default, trident);
3095                 if (kctl == NULL) {
3096                         err = -ENOMEM;
3097                         goto __out;
3098                 }
3099                 kctl->id.index = idx;
3100                 kctl->id.device = pcm_spdif_device;
3101                 if ((err = snd_ctl_add(card, kctl)) < 0)
3102                         goto __out;
3103
3104                 kctl = snd_ctl_new1(&snd_trident_spdif_mask, trident);
3105                 if (kctl == NULL) {
3106                         err = -ENOMEM;
3107                         goto __out;
3108                 }
3109                 kctl->id.index = idx;
3110                 kctl->id.device = pcm_spdif_device;
3111                 if ((err = snd_ctl_add(card, kctl)) < 0)
3112                         goto __out;
3113
3114                 kctl = snd_ctl_new1(&snd_trident_spdif_stream, trident);
3115                 if (kctl == NULL) {
3116                         err = -ENOMEM;
3117                         goto __out;
3118                 }
3119                 kctl->id.index = idx;
3120                 kctl->id.device = pcm_spdif_device;
3121                 if ((err = snd_ctl_add(card, kctl)) < 0)
3122                         goto __out;
3123                 trident->spdif_pcm_ctl = kctl;
3124         }
3125
3126         err = 0;
3127         goto __out;
3128
3129  __nomem:
3130         err = -ENOMEM;
3131
3132  __out:
3133         kfree(uctl);
3134
3135         return err;
3136 }
3137
3138 /*
3139  * gameport interface
3140  */
3141
3142 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
3143
3144 static unsigned char snd_trident_gameport_read(struct gameport *gameport)
3145 {
3146         struct snd_trident *chip = gameport_get_port_data(gameport);
3147
3148         snd_assert(chip, return 0);
3149         return inb(TRID_REG(chip, GAMEPORT_LEGACY));
3150 }
3151
3152 static void snd_trident_gameport_trigger(struct gameport *gameport)
3153 {
3154         struct snd_trident *chip = gameport_get_port_data(gameport);
3155
3156         snd_assert(chip, return);
3157         outb(0xff, TRID_REG(chip, GAMEPORT_LEGACY));
3158 }
3159
3160 static int snd_trident_gameport_cooked_read(struct gameport *gameport, int *axes, int *buttons)
3161 {
3162         struct snd_trident *chip = gameport_get_port_data(gameport);
3163         int i;
3164
3165         snd_assert(chip, return 0);
3166
3167         *buttons = (~inb(TRID_REG(chip, GAMEPORT_LEGACY)) >> 4) & 0xf;
3168
3169         for (i = 0; i < 4; i++) {
3170                 axes[i] = inw(TRID_REG(chip, GAMEPORT_AXES + i * 2));
3171                 if (axes[i] == 0xffff) axes[i] = -1;
3172         }
3173
3174         return 0;
3175 }
3176
3177 static int snd_trident_gameport_open(struct gameport *gameport, int mode)
3178 {
3179         struct snd_trident *chip = gameport_get_port_data(gameport);
3180
3181         snd_assert(chip, return 0);
3182
3183         switch (mode) {
3184                 case GAMEPORT_MODE_COOKED:
3185                         outb(GAMEPORT_MODE_ADC, TRID_REG(chip, GAMEPORT_GCR));
3186                         msleep(20);
3187                         return 0;
3188                 case GAMEPORT_MODE_RAW:
3189                         outb(0, TRID_REG(chip, GAMEPORT_GCR));
3190                         return 0;
3191                 default:
3192                         return -1;
3193         }
3194 }
3195
3196 int __devinit snd_trident_create_gameport(struct snd_trident *chip)
3197 {
3198         struct gameport *gp;
3199
3200         chip->gameport = gp = gameport_allocate_port();
3201         if (!gp) {
3202                 printk(KERN_ERR "trident: cannot allocate memory for gameport\n");
3203                 return -ENOMEM;
3204         }
3205
3206         gameport_set_name(gp, "Trident 4DWave");
3207         gameport_set_phys(gp, "pci%s/gameport0", pci_name(chip->pci));
3208         gameport_set_dev_parent(gp, &chip->pci->dev);
3209
3210         gameport_set_port_data(gp, chip);
3211         gp->fuzz = 64;
3212         gp->read = snd_trident_gameport_read;
3213         gp->trigger = snd_trident_gameport_trigger;
3214         gp->cooked_read = snd_trident_gameport_cooked_read;
3215         gp->open = snd_trident_gameport_open;
3216
3217         gameport_register_port(gp);
3218
3219         return 0;
3220 }
3221
3222 static inline void snd_trident_free_gameport(struct snd_trident *chip)
3223 {
3224         if (chip->gameport) {
3225                 gameport_unregister_port(chip->gameport);
3226                 chip->gameport = NULL;
3227         }
3228 }
3229 #else
3230 int __devinit snd_trident_create_gameport(struct snd_trident *chip) { return -ENOSYS; }
3231 static inline void snd_trident_free_gameport(struct snd_trident *chip) { }
3232 #endif /* CONFIG_GAMEPORT */
3233
3234 /*
3235  * delay for 1 tick
3236  */
3237 static inline void do_delay(struct snd_trident *chip)
3238 {
3239         schedule_timeout_uninterruptible(1);
3240 }
3241
3242 /*
3243  *  SiS reset routine
3244  */
3245
3246 static int snd_trident_sis_reset(struct snd_trident *trident)
3247 {
3248         unsigned long end_time;
3249         unsigned int i;
3250         int r;
3251
3252         r = trident->in_suspend ? 0 : 2;        /* count of retries */
3253       __si7018_retry:
3254         pci_write_config_byte(trident->pci, 0x46, 0x04);        /* SOFTWARE RESET */
3255         udelay(100);
3256         pci_write_config_byte(trident->pci, 0x46, 0x00);
3257         udelay(100);
3258         /* disable AC97 GPIO interrupt */
3259         outb(0x00, TRID_REG(trident, SI_AC97_GPIO));
3260         /* initialize serial interface, force cold reset */
3261         i = PCMOUT|SURROUT|CENTEROUT|LFEOUT|SECONDARY_ID|COLD_RESET;
3262         outl(i, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
3263         udelay(1000);
3264         /* remove cold reset */
3265         i &= ~COLD_RESET;
3266         outl(i, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
3267         udelay(2000);
3268         /* wait, until the codec is ready */
3269         end_time = (jiffies + (HZ * 3) / 4) + 1;
3270         do {
3271                 if ((inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & SI_AC97_PRIMARY_READY) != 0)
3272                         goto __si7018_ok;
3273                 do_delay(trident);
3274         } while (time_after_eq(end_time, jiffies));
3275         snd_printk(KERN_ERR "AC'97 codec ready error [0x%x]\n", inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)));
3276         if (r-- > 0) {
3277                 end_time = jiffies + HZ;
3278                 do {
3279                         do_delay(trident);
3280                 } while (time_after_eq(end_time, jiffies));
3281                 goto __si7018_retry;
3282         }
3283       __si7018_ok:
3284         /* wait for the second codec */
3285         do {
3286                 if ((inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL)) & SI_AC97_SECONDARY_READY) != 0)
3287                         break;
3288                 do_delay(trident);
3289         } while (time_after_eq(end_time, jiffies));
3290         /* enable 64 channel mode */
3291         outl(BANK_B_EN, TRID_REG(trident, T4D_LFO_GC_CIR));
3292         return 0;
3293 }
3294
3295 /*
3296  *  /proc interface
3297  */
3298
3299 static void snd_trident_proc_read(struct snd_info_entry *entry,
3300                                   struct snd_info_buffer *buffer)
3301 {
3302         struct snd_trident *trident = entry->private_data;
3303         char *s;
3304
3305         switch (trident->device) {
3306         case TRIDENT_DEVICE_ID_SI7018:
3307                 s = "SiS 7018 Audio";
3308                 break;
3309         case TRIDENT_DEVICE_ID_DX:
3310                 s = "Trident 4DWave PCI DX";
3311                 break;
3312         case TRIDENT_DEVICE_ID_NX:
3313                 s = "Trident 4DWave PCI NX";
3314                 break;
3315         default:
3316                 s = "???";
3317         }
3318         snd_iprintf(buffer, "%s\n\n", s);
3319         snd_iprintf(buffer, "Spurious IRQs    : %d\n", trident->spurious_irq_count);
3320         snd_iprintf(buffer, "Spurious IRQ dlta: %d\n", trident->spurious_irq_max_delta);
3321         if (trident->device == TRIDENT_DEVICE_ID_NX || trident->device == TRIDENT_DEVICE_ID_SI7018)
3322                 snd_iprintf(buffer, "IEC958 Mixer Out : %s\n", trident->spdif_ctrl == 0x28 ? "on" : "off");
3323         if (trident->device == TRIDENT_DEVICE_ID_NX) {
3324                 snd_iprintf(buffer, "Rear Speakers    : %s\n", trident->ac97_ctrl & 0x00000010 ? "on" : "off");
3325                 if (trident->tlb.entries) {
3326                         snd_iprintf(buffer,"\nVirtual Memory\n");
3327                         snd_iprintf(buffer, "Memory Maximum : %d\n", trident->tlb.memhdr->size);
3328                         snd_iprintf(buffer, "Memory Used    : %d\n", trident->tlb.memhdr->used);
3329                         snd_iprintf(buffer, "Memory Free    : %d\n", snd_util_mem_avail(trident->tlb.memhdr));
3330                 }
3331         }
3332 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
3333         snd_iprintf(buffer,"\nWavetable Synth\n");
3334         snd_iprintf(buffer, "Memory Maximum : %d\n", trident->synth.max_size);
3335         snd_iprintf(buffer, "Memory Used    : %d\n", trident->synth.current_size);
3336         snd_iprintf(buffer, "Memory Free    : %d\n", (trident->synth.max_size-trident->synth.current_size));
3337 #endif
3338 }
3339
3340 static void __devinit snd_trident_proc_init(struct snd_trident * trident)
3341 {
3342         struct snd_info_entry *entry;
3343         const char *s = "trident";
3344
3345         if (trident->device == TRIDENT_DEVICE_ID_SI7018)
3346                 s = "sis7018";
3347         if (! snd_card_proc_new(trident->card, s, &entry))
3348                 snd_info_set_text_ops(entry, trident, snd_trident_proc_read);
3349 }
3350
3351 static int snd_trident_dev_free(struct snd_device *device)
3352 {
3353         struct snd_trident *trident = device->device_data;
3354         return snd_trident_free(trident);
3355 }
3356
3357 /*---------------------------------------------------------------------------
3358    snd_trident_tlb_alloc
3359
3360    Description: Allocate and set up the TLB page table on 4D NX.
3361                 Each entry has 4 bytes (physical PCI address).
3362
3363    Paramters:   trident - pointer to target device class for 4DWave.
3364
3365    Returns:     0 or negative error code
3366
3367   ---------------------------------------------------------------------------*/
3368
3369 static int __devinit snd_trident_tlb_alloc(struct snd_trident *trident)
3370 {
3371         int i;
3372
3373         /* TLB array must be aligned to 16kB !!! so we allocate
3374            32kB region and correct offset when necessary */
3375
3376         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(trident->pci),
3377                                 2 * SNDRV_TRIDENT_MAX_PAGES * 4, &trident->tlb.buffer) < 0) {
3378                 snd_printk(KERN_ERR "trident: unable to allocate TLB buffer\n");
3379                 return -ENOMEM;
3380         }
3381         trident->tlb.entries = (unsigned int*)ALIGN((unsigned long)trident->tlb.buffer.area, SNDRV_TRIDENT_MAX_PAGES * 4);
3382         trident->tlb.entries_dmaaddr = ALIGN(trident->tlb.buffer.addr, SNDRV_TRIDENT_MAX_PAGES * 4);
3383         /* allocate shadow TLB page table (virtual addresses) */
3384         trident->tlb.shadow_entries = vmalloc(SNDRV_TRIDENT_MAX_PAGES*sizeof(unsigned long));
3385         if (trident->tlb.shadow_entries == NULL) {
3386                 snd_printk(KERN_ERR "trident: unable to allocate shadow TLB entries\n");
3387                 return -ENOMEM;
3388         }
3389         /* allocate and setup silent page and initialise TLB entries */
3390         if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(trident->pci),
3391                                 SNDRV_TRIDENT_PAGE_SIZE, &trident->tlb.silent_page) < 0) {
3392                 snd_printk(KERN_ERR "trident: unable to allocate silent page\n");
3393                 return -ENOMEM;
3394         }
3395         memset(trident->tlb.silent_page.area, 0, SNDRV_TRIDENT_PAGE_SIZE);
3396         for (i = 0; i < SNDRV_TRIDENT_MAX_PAGES; i++) {
3397                 trident->tlb.entries[i] = cpu_to_le32(trident->tlb.silent_page.addr & ~(SNDRV_TRIDENT_PAGE_SIZE-1));
3398                 trident->tlb.shadow_entries[i] = (unsigned long)trident->tlb.silent_page.area;
3399         }
3400
3401         /* use emu memory block manager code to manage tlb page allocation */
3402         trident->tlb.memhdr = snd_util_memhdr_new(SNDRV_TRIDENT_PAGE_SIZE * SNDRV_TRIDENT_MAX_PAGES);
3403         if (trident->tlb.memhdr == NULL)
3404                 return -ENOMEM;
3405
3406         trident->tlb.memhdr->block_extra_size = sizeof(struct snd_trident_memblk_arg);
3407         return 0;
3408 }
3409
3410 /*
3411  * initialize 4D DX chip
3412  */
3413
3414 static void snd_trident_stop_all_voices(struct snd_trident *trident)
3415 {
3416         outl(0xffffffff, TRID_REG(trident, T4D_STOP_A));
3417         outl(0xffffffff, TRID_REG(trident, T4D_STOP_B));
3418         outl(0, TRID_REG(trident, T4D_AINTEN_A));
3419         outl(0, TRID_REG(trident, T4D_AINTEN_B));
3420 }
3421
3422 static int snd_trident_4d_dx_init(struct snd_trident *trident)
3423 {
3424         struct pci_dev *pci = trident->pci;
3425         unsigned long end_time;
3426
3427         /* reset the legacy configuration and whole audio/wavetable block */
3428         pci_write_config_dword(pci, 0x40, 0);   /* DDMA */
3429         pci_write_config_byte(pci, 0x44, 0);    /* ports */
3430         pci_write_config_byte(pci, 0x45, 0);    /* Legacy DMA */
3431         pci_write_config_byte(pci, 0x46, 4); /* reset */
3432         udelay(100);
3433         pci_write_config_byte(pci, 0x46, 0); /* release reset */
3434         udelay(100);
3435
3436         /* warm reset of the AC'97 codec */
3437         outl(0x00000001, TRID_REG(trident, DX_ACR2_AC97_COM_STAT));
3438         udelay(100);
3439         outl(0x00000000, TRID_REG(trident, DX_ACR2_AC97_COM_STAT));
3440         /* DAC on, disable SB IRQ and try to force ADC valid signal */
3441         trident->ac97_ctrl = 0x0000004a;
3442         outl(trident->ac97_ctrl, TRID_REG(trident, DX_ACR2_AC97_COM_STAT));
3443         /* wait, until the codec is ready */
3444         end_time = (jiffies + (HZ * 3) / 4) + 1;
3445         do {
3446                 if ((inl(TRID_REG(trident, DX_ACR2_AC97_COM_STAT)) & 0x0010) != 0)
3447                         goto __dx_ok;
3448                 do_delay(trident);
3449         } while (time_after_eq(end_time, jiffies));
3450         snd_printk(KERN_ERR "AC'97 codec ready error\n");
3451         return -EIO;
3452
3453  __dx_ok:
3454         snd_trident_stop_all_voices(trident);
3455
3456         return 0;
3457 }
3458
3459 /*
3460  * initialize 4D NX chip
3461  */
3462 static int snd_trident_4d_nx_init(struct snd_trident *trident)
3463 {
3464         struct pci_dev *pci = trident->pci;
3465         unsigned long end_time;
3466
3467         /* reset the legacy configuration and whole audio/wavetable block */
3468         pci_write_config_dword(pci, 0x40, 0);   /* DDMA */
3469         pci_write_config_byte(pci, 0x44, 0);    /* ports */
3470         pci_write_config_byte(pci, 0x45, 0);    /* Legacy DMA */
3471
3472         pci_write_config_byte(pci, 0x46, 1); /* reset */
3473         udelay(100);
3474         pci_write_config_byte(pci, 0x46, 0); /* release reset */
3475         udelay(100);
3476
3477         /* warm reset of the AC'97 codec */
3478         outl(0x00000001, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
3479         udelay(100);
3480         outl(0x00000000, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
3481         /* wait, until the codec is ready */
3482         end_time = (jiffies + (HZ * 3) / 4) + 1;
3483         do {
3484                 if ((inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT)) & 0x0008) != 0)
3485                         goto __nx_ok;
3486                 do_delay(trident);
3487         } while (time_after_eq(end_time, jiffies));
3488         snd_printk(KERN_ERR "AC'97 codec ready error [0x%x]\n", inl(TRID_REG(trident, NX_ACR0_AC97_COM_STAT)));
3489         return -EIO;
3490
3491  __nx_ok:
3492         /* DAC on */
3493         trident->ac97_ctrl = 0x00000002;
3494         outl(trident->ac97_ctrl, TRID_REG(trident, NX_ACR0_AC97_COM_STAT));
3495         /* disable SB IRQ */
3496         outl(NX_SB_IRQ_DISABLE, TRID_REG(trident, T4D_MISCINT));
3497
3498         snd_trident_stop_all_voices(trident);
3499
3500         if (trident->tlb.entries != NULL) {
3501                 unsigned int i;
3502                 /* enable virtual addressing via TLB */
3503                 i = trident->tlb.entries_dmaaddr;
3504                 i |= 0x00000001;
3505                 outl(i, TRID_REG(trident, NX_TLBC));
3506         } else {
3507                 outl(0, TRID_REG(trident, NX_TLBC));
3508         }
3509         /* initialize S/PDIF */
3510         outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
3511         outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
3512
3513         return 0;
3514 }
3515
3516 /*
3517  * initialize sis7018 chip
3518  */
3519 static int snd_trident_sis_init(struct snd_trident *trident)
3520 {
3521         int err;
3522
3523         if ((err = snd_trident_sis_reset(trident)) < 0)
3524                 return err;
3525
3526         snd_trident_stop_all_voices(trident);
3527
3528         /* initialize S/PDIF */
3529         outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
3530
3531         return 0;
3532 }
3533
3534 /*---------------------------------------------------------------------------
3535    snd_trident_create
3536
3537    Description: This routine will create the device specific class for
3538                 the 4DWave card. It will also perform basic initialization.
3539
3540    Paramters:   card  - which card to create
3541                 pci   - interface to PCI bus resource info
3542                 dma1ptr - playback dma buffer
3543                 dma2ptr - capture dma buffer
3544                 irqptr  -  interrupt resource info
3545
3546    Returns:     4DWave device class private data
3547
3548   ---------------------------------------------------------------------------*/
3549
3550 int __devinit snd_trident_create(struct snd_card *card,
3551                        struct pci_dev *pci,
3552                        int pcm_streams,
3553                        int pcm_spdif_device,
3554                        int max_wavetable_size,
3555                        struct snd_trident ** rtrident)
3556 {
3557         struct snd_trident *trident;
3558         int i, err;
3559         struct snd_trident_voice *voice;
3560         struct snd_trident_pcm_mixer *tmix;
3561         static struct snd_device_ops ops = {
3562                 .dev_free =     snd_trident_dev_free,
3563         };
3564
3565         *rtrident = NULL;
3566
3567         /* enable PCI device */
3568         if ((err = pci_enable_device(pci)) < 0)
3569                 return err;
3570         /* check, if we can restrict PCI DMA transfers to 30 bits */
3571         if (pci_set_dma_mask(pci, DMA_30BIT_MASK) < 0 ||
3572             pci_set_consistent_dma_mask(pci, DMA_30BIT_MASK) < 0) {
3573                 snd_printk(KERN_ERR "architecture does not support 30bit PCI busmaster DMA\n");
3574                 pci_disable_device(pci);
3575                 return -ENXIO;
3576         }
3577
3578         trident = kzalloc(sizeof(*trident), GFP_KERNEL);
3579         if (trident == NULL) {
3580                 pci_disable_device(pci);
3581                 return -ENOMEM;
3582         }
3583         trident->device = (pci->vendor << 16) | pci->device;
3584         trident->card = card;
3585         trident->pci = pci;
3586         spin_lock_init(&trident->reg_lock);
3587         spin_lock_init(&trident->event_lock);
3588         spin_lock_init(&trident->voice_alloc);
3589         if (pcm_streams < 1)
3590                 pcm_streams = 1;
3591         if (pcm_streams > 32)
3592                 pcm_streams = 32;
3593         trident->ChanPCM = pcm_streams;
3594         if (max_wavetable_size < 0 )
3595                 max_wavetable_size = 0;
3596         trident->synth.max_size = max_wavetable_size * 1024;
3597         trident->irq = -1;
3598
3599         trident->midi_port = TRID_REG(trident, T4D_MPU401_BASE);
3600         pci_set_master(pci);
3601
3602         if ((err = pci_request_regions(pci, "Trident Audio")) < 0) {
3603                 kfree(trident);
3604                 pci_disable_device(pci);
3605                 return err;
3606         }
3607         trident->port = pci_resource_start(pci, 0);
3608
3609         if (request_irq(pci->irq, snd_trident_interrupt, IRQF_SHARED,
3610                         "Trident Audio", trident)) {
3611                 snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
3612                 snd_trident_free(trident);
3613                 return -EBUSY;
3614         }
3615         trident->irq = pci->irq;
3616
3617         /* allocate 16k-aligned TLB for NX cards */
3618         trident->tlb.entries = NULL;
3619         trident->tlb.buffer.area = NULL;
3620         if (trident->device == TRIDENT_DEVICE_ID_NX) {
3621                 if ((err = snd_trident_tlb_alloc(trident)) < 0) {
3622                         snd_trident_free(trident);
3623                         return err;
3624                 }
3625         }
3626
3627         trident->spdif_bits = trident->spdif_pcm_bits = SNDRV_PCM_DEFAULT_CON_SPDIF;
3628
3629         /* initialize chip */
3630         switch (trident->device) {
3631         case TRIDENT_DEVICE_ID_DX:
3632                 err = snd_trident_4d_dx_init(trident);
3633                 break;
3634         case TRIDENT_DEVICE_ID_NX:
3635                 err = snd_trident_4d_nx_init(trident);
3636                 break;
3637         case TRIDENT_DEVICE_ID_SI7018:
3638                 err = snd_trident_sis_init(trident);
3639                 break;
3640         default:
3641                 snd_BUG();
3642                 break;
3643         }
3644         if (err < 0) {
3645                 snd_trident_free(trident);
3646                 return err;
3647         }
3648
3649         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, trident, &ops)) < 0) {
3650                 snd_trident_free(trident);
3651                 return err;
3652         }
3653
3654         if ((err = snd_trident_mixer(trident, pcm_spdif_device)) < 0)
3655                 return err;
3656
3657         /* initialise synth voices */
3658         for (i = 0; i < 64; i++) {
3659                 voice = &trident->synth.voices[i];
3660                 voice->number = i;
3661                 voice->trident = trident;
3662         }
3663         /* initialize pcm mixer entries */
3664         for (i = 0; i < 32; i++) {
3665                 tmix = &trident->pcm_mixer[i];
3666                 tmix->vol = T4D_DEFAULT_PCM_VOL;
3667                 tmix->pan = T4D_DEFAULT_PCM_PAN;
3668                 tmix->rvol = T4D_DEFAULT_PCM_RVOL;
3669                 tmix->cvol = T4D_DEFAULT_PCM_CVOL;
3670         }
3671
3672         snd_trident_enable_eso(trident);
3673
3674         snd_trident_proc_init(trident);
3675         snd_card_set_dev(card, &pci->dev);
3676         *rtrident = trident;
3677         return 0;
3678 }
3679
3680 /*---------------------------------------------------------------------------
3681    snd_trident_free
3682
3683    Description: This routine will free the device specific class for
3684                 the 4DWave card.
3685
3686    Paramters:   trident  - device specific private data for 4DWave card
3687
3688    Returns:     None.
3689
3690   ---------------------------------------------------------------------------*/
3691
3692 static int snd_trident_free(struct snd_trident *trident)
3693 {
3694         snd_trident_free_gameport(trident);
3695         snd_trident_disable_eso(trident);
3696         // Disable S/PDIF out
3697         if (trident->device == TRIDENT_DEVICE_ID_NX)
3698                 outb(0x00, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
3699         else if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
3700                 outl(0, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
3701         }
3702         if (trident->tlb.buffer.area) {
3703                 outl(0, TRID_REG(trident, NX_TLBC));
3704                 if (trident->tlb.memhdr)
3705                         snd_util_memhdr_free(trident->tlb.memhdr);
3706                 if (trident->tlb.silent_page.area)
3707                         snd_dma_free_pages(&trident->tlb.silent_page);
3708                 vfree(trident->tlb.shadow_entries);
3709                 snd_dma_free_pages(&trident->tlb.buffer);
3710         }
3711         if (trident->irq >= 0)
3712                 free_irq(trident->irq, trident);
3713         pci_release_regions(trident->pci);
3714         pci_disable_device(trident->pci);
3715         kfree(trident);
3716         return 0;
3717 }
3718
3719 /*---------------------------------------------------------------------------
3720    snd_trident_interrupt
3721
3722    Description: ISR for Trident 4DWave device
3723
3724    Paramters:   trident  - device specific private data for 4DWave card
3725
3726    Problems:    It seems that Trident chips generates interrupts more than
3727                 one time in special cases. The spurious interrupts are
3728                 detected via sample timer (T4D_STIMER) and computing
3729                 corresponding delta value. The limits are detected with
3730                 the method try & fail so it is possible that it won't
3731                 work on all computers. [jaroslav]
3732
3733    Returns:     None.
3734
3735   ---------------------------------------------------------------------------*/
3736
3737 static irqreturn_t snd_trident_interrupt(int irq, void *dev_id)
3738 {
3739         struct snd_trident *trident = dev_id;
3740         unsigned int audio_int, chn_int, stimer, channel, mask, tmp;
3741         int delta;
3742         struct snd_trident_voice *voice;
3743
3744         audio_int = inl(TRID_REG(trident, T4D_MISCINT));
3745         if ((audio_int & (ADDRESS_IRQ|MPU401_IRQ)) == 0)
3746                 return IRQ_NONE;
3747         if (audio_int & ADDRESS_IRQ) {
3748                 // get interrupt status for all channels
3749                 spin_lock(&trident->reg_lock);
3750                 stimer = inl(TRID_REG(trident, T4D_STIMER)) & 0x00ffffff;
3751                 chn_int = inl(TRID_REG(trident, T4D_AINT_A));
3752                 if (chn_int == 0)
3753                         goto __skip1;
3754                 outl(chn_int, TRID_REG(trident, T4D_AINT_A));   /* ack */
3755               __skip1:
3756                 chn_int = inl(TRID_REG(trident, T4D_AINT_B));
3757                 if (chn_int == 0)
3758                         goto __skip2;
3759                 for (channel = 63; channel >= 32; channel--) {
3760                         mask = 1 << (channel&0x1f);
3761                         if ((chn_int & mask) == 0)
3762                                 continue;
3763                         voice = &trident->synth.voices[channel];
3764                         if (!voice->pcm || voice->substream == NULL) {
3765                                 outl(mask, TRID_REG(trident, T4D_STOP_B));
3766                                 continue;
3767                         }
3768                         delta = (int)stimer - (int)voice->stimer;
3769                         if (delta < 0)
3770                                 delta = -delta;
3771                         if ((unsigned int)delta < voice->spurious_threshold) {
3772                                 /* do some statistics here */
3773                                 trident->spurious_irq_count++;
3774                                 if (trident->spurious_irq_max_delta < (unsigned int)delta)
3775                                         trident->spurious_irq_max_delta = delta;
3776                                 continue;
3777                         }
3778                         voice->stimer = stimer;
3779                         if (voice->isync) {
3780                                 if (!voice->isync3) {
3781                                         tmp = inw(TRID_REG(trident, T4D_SBBL_SBCL));
3782                                         if (trident->bDMAStart & 0x40)
3783                                                 tmp >>= 1;
3784                                         if (tmp > 0)
3785                                                 tmp = voice->isync_max - tmp;
3786                                 } else {
3787                                         tmp = inl(TRID_REG(trident, NX_SPCTRL_SPCSO)) & 0x00ffffff;
3788                                 }
3789                                 if (tmp < voice->isync_mark) {
3790                                         if (tmp > 0x10)
3791                                                 tmp = voice->isync_ESO - 7;
3792                                         else
3793                                                 tmp = voice->isync_ESO + 2;
3794                                         /* update ESO for IRQ voice to preserve sync */
3795                                         snd_trident_stop_voice(trident, voice->number);
3796                                         snd_trident_write_eso_reg(trident, voice, tmp);
3797                                         snd_trident_start_voice(trident, voice->number);
3798                                 }
3799                         } else if (voice->isync2) {
3800                                 voice->isync2 = 0;
3801                                 /* write original ESO and update CSO for IRQ voice to preserve sync */
3802                                 snd_trident_stop_voice(trident, voice->number);
3803                                 snd_trident_write_cso_reg(trident, voice, voice->isync_mark);
3804                                 snd_trident_write_eso_reg(trident, voice, voice->ESO);
3805                                 snd_trident_start_voice(trident, voice->number);
3806                         }
3807 #if 0
3808                         if (voice->extra) {
3809                                 /* update CSO for extra voice to preserve sync */
3810                                 snd_trident_stop_voice(trident, voice->extra->number);
3811                                 snd_trident_write_cso_reg(trident, voice->extra, 0);
3812                                 snd_trident_start_voice(trident, voice->extra->number);
3813                         }
3814 #endif
3815                         spin_unlock(&trident->reg_lock);
3816                         snd_pcm_period_elapsed(voice->substream);
3817                         spin_lock(&trident->reg_lock);
3818                 }
3819                 outl(chn_int, TRID_REG(trident, T4D_AINT_B));   /* ack */
3820               __skip2:
3821                 spin_unlock(&trident->reg_lock);
3822         }
3823         if (audio_int & MPU401_IRQ) {
3824                 if (trident->rmidi) {
3825                         snd_mpu401_uart_interrupt(irq, trident->rmidi->private_data);
3826                 } else {
3827                         inb(TRID_REG(trident, T4D_MPUR0));
3828                 }
3829         }
3830         // outl((ST_TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW), TRID_REG(trident, T4D_MISCINT));
3831         return IRQ_HANDLED;
3832 }
3833
3834 /*---------------------------------------------------------------------------
3835    snd_trident_attach_synthesizer
3836
3837    Description: Attach synthesizer hooks
3838
3839    Paramters:   trident  - device specific private data for 4DWave card
3840
3841    Returns:     None.
3842
3843   ---------------------------------------------------------------------------*/
3844 int snd_trident_attach_synthesizer(struct snd_trident *trident)
3845 {
3846 #if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE))
3847         if (snd_seq_device_new(trident->card, 1, SNDRV_SEQ_DEV_ID_TRIDENT,
3848                                sizeof(struct snd_trident *), &trident->seq_dev) >= 0) {
3849                 strcpy(trident->seq_dev->name, "4DWave");
3850                 *(struct snd_trident **)SNDRV_SEQ_DEVICE_ARGPTR(trident->seq_dev) = trident;
3851         }
3852 #endif
3853         return 0;
3854 }
3855
3856 struct snd_trident_voice *snd_trident_alloc_voice(struct snd_trident * trident, int type, int client, int port)
3857 {
3858         struct snd_trident_voice *pvoice;
3859         unsigned long flags;
3860         int idx;
3861
3862         spin_lock_irqsave(&trident->voice_alloc, flags);
3863         if (type == SNDRV_TRIDENT_VOICE_TYPE_PCM) {
3864                 idx = snd_trident_allocate_pcm_channel(trident);
3865                 if(idx < 0) {
3866                         spin_unlock_irqrestore(&trident->voice_alloc, flags);
3867                         return NULL;
3868                 }
3869                 pvoice = &trident->synth.voices[idx];
3870                 pvoice->use = 1;
3871                 pvoice->pcm = 1;
3872                 pvoice->capture = 0;
3873                 pvoice->spdif = 0;
3874                 pvoice->memblk = NULL;
3875                 pvoice->substream = NULL;
3876                 spin_unlock_irqrestore(&trident->voice_alloc, flags);
3877                 return pvoice;
3878         }
3879         if (type == SNDRV_TRIDENT_VOICE_TYPE_SYNTH) {
3880                 idx = snd_trident_allocate_synth_channel(trident);
3881                 if(idx < 0) {
3882                         spin_unlock_irqrestore(&trident->voice_alloc, flags);
3883                         return NULL;
3884                 }
3885                 pvoice = &trident->synth.voices[idx];
3886                 pvoice->use = 1;
3887                 pvoice->synth = 1;
3888                 pvoice->client = client;
3889                 pvoice->port = port;
3890                 pvoice->memblk = NULL;
3891                 spin_unlock_irqrestore(&trident->voice_alloc, flags);
3892                 return pvoice;
3893         }
3894         if (type == SNDRV_TRIDENT_VOICE_TYPE_MIDI) {
3895         }
3896         spin_unlock_irqrestore(&trident->voice_alloc, flags);
3897         return NULL;
3898 }
3899
3900 EXPORT_SYMBOL(snd_trident_alloc_voice);
3901
3902 void snd_trident_free_voice(struct snd_trident * trident, struct snd_trident_voice *voice)
3903 {
3904         unsigned long flags;
3905         void (*private_free)(struct snd_trident_voice *);
3906         void *private_data;
3907
3908         if (voice == NULL || !voice->use)
3909                 return;
3910         snd_trident_clear_voices(trident, voice->number, voice->number);
3911         spin_lock_irqsave(&trident->voice_alloc, flags);
3912         private_free = voice->private_free;
3913         private_data = voice->private_data;
3914         voice->private_free = NULL;
3915         voice->private_data = NULL;
3916         if (voice->pcm)
3917                 snd_trident_free_pcm_channel(trident, voice->number);
3918         if (voice->synth)
3919                 snd_trident_free_synth_channel(trident, voice->number);
3920         voice->use = voice->pcm = voice->synth = voice->midi = 0;
3921         voice->capture = voice->spdif = 0;
3922         voice->sample_ops = NULL;
3923         voice->substream = NULL;
3924         voice->extra = NULL;
3925         spin_unlock_irqrestore(&trident->voice_alloc, flags);
3926         if (private_free)
3927                 private_free(voice);
3928 }
3929
3930 EXPORT_SYMBOL(snd_trident_free_voice);
3931
3932 static void snd_trident_clear_voices(struct snd_trident * trident, unsigned short v_min, unsigned short v_max)
3933 {
3934         unsigned int i, val, mask[2] = { 0, 0 };
3935
3936         snd_assert(v_min <= 63, return);
3937         snd_assert(v_max <= 63, return);
3938         for (i = v_min; i <= v_max; i++)
3939                 mask[i >> 5] |= 1 << (i & 0x1f);
3940         if (mask[0]) {
3941                 outl(mask[0], TRID_REG(trident, T4D_STOP_A));
3942                 val = inl(TRID_REG(trident, T4D_AINTEN_A));
3943                 outl(val & ~mask[0], TRID_REG(trident, T4D_AINTEN_A));
3944         }
3945         if (mask[1]) {
3946                 outl(mask[1], TRID_REG(trident, T4D_STOP_B));
3947                 val = inl(TRID_REG(trident, T4D_AINTEN_B));
3948                 outl(val & ~mask[1], TRID_REG(trident, T4D_AINTEN_B));
3949         }
3950 }
3951
3952 #ifdef CONFIG_PM
3953 int snd_trident_suspend(struct pci_dev *pci, pm_message_t state)
3954 {
3955         struct snd_card *card = pci_get_drvdata(pci);
3956         struct snd_trident *trident = card->private_data;
3957
3958         trident->in_suspend = 1;
3959         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
3960         snd_pcm_suspend_all(trident->pcm);
3961         snd_pcm_suspend_all(trident->foldback);
3962         snd_pcm_suspend_all(trident->spdif);
3963
3964         snd_ac97_suspend(trident->ac97);
3965         snd_ac97_suspend(trident->ac97_sec);
3966
3967         pci_disable_device(pci);
3968         pci_save_state(pci);
3969         pci_set_power_state(pci, pci_choose_state(pci, state));
3970         return 0;
3971 }
3972
3973 int snd_trident_resume(struct pci_dev *pci)
3974 {
3975         struct snd_card *card = pci_get_drvdata(pci);
3976         struct snd_trident *trident = card->private_data;
3977
3978         pci_set_power_state(pci, PCI_D0);
3979         pci_restore_state(pci);
3980         if (pci_enable_device(pci) < 0) {
3981                 printk(KERN_ERR "trident: pci_enable_device failed, "
3982                        "disabling device\n");
3983                 snd_card_disconnect(card);
3984                 return -EIO;
3985         }
3986         pci_set_master(pci);
3987
3988         switch (trident->device) {
3989         case TRIDENT_DEVICE_ID_DX:
3990                 snd_trident_4d_dx_init(trident);
3991                 break;
3992         case TRIDENT_DEVICE_ID_NX:
3993                 snd_trident_4d_nx_init(trident);
3994                 break;
3995         case TRIDENT_DEVICE_ID_SI7018:
3996                 snd_trident_sis_init(trident);
3997                 break;
3998         }
3999
4000         snd_ac97_resume(trident->ac97);
4001         snd_ac97_resume(trident->ac97_sec);
4002
4003         /* restore some registers */
4004         outl(trident->musicvol_wavevol, TRID_REG(trident, T4D_MUSICVOL_WAVEVOL));
4005
4006         snd_trident_enable_eso(trident);
4007
4008         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
4009         trident->in_suspend = 0;
4010         return 0;
4011 }
4012 #endif /* CONFIG_PM */