sound/pci/ali5451/ali5451.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  Matt Wu <Matt_Wu@acersoftech.com.cn>
   4  *  Apr 26, 2001
   5  *  Routines for control of ALi pci audio M5451
   6  *
   7  *  BUGS:
   8  *    --
   9  *
  10  *  TODO:
  11  *    --
  12  */
  13
  14 #include <linux/io.h>
  15 #include <linux/delay.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/init.h>
  18 #include <linux/pci.h>
  19 #include <linux/slab.h>
  20 #include <linux/module.h>
  21 #include <linux/dma-mapping.h>
  22 #include <sound/core.h>
  23 #include <sound/pcm.h>
  24 #include <sound/info.h>
  25 #include <sound/ac97_codec.h>
  26 #include <sound/mpu401.h>
  27 #include <sound/initval.h>
  28
  29 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
  30 MODULE_DESCRIPTION("ALI M5451");
  31 MODULE_LICENSE("GPL");
  32
  33 static int index = SNDRV_DEFAULT_IDX1;  /* Index */
  34 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  35 static int pcm_channels = 32;
  36 static bool spdif;
  37
  38 module_param(index, int, 0444);
  39 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  40 module_param(id, charp, 0444);
  41 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  42 module_param(pcm_channels, int, 0444);
  43 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  44 module_param(spdif, bool, 0444);
  45 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  46
  47 /* just for backward compatibility */
  48 static bool enable;
  49 module_param(enable, bool, 0444);
  50
  51
  52 /*
  53  *  Constants definition
  54  */
  55
  56 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  57
  58
  59 #define ALI_CHANNELS            32
  60
  61 #define ALI_PCM_IN_CHANNEL      31
  62 #define ALI_SPDIF_IN_CHANNEL    19
  63 #define ALI_SPDIF_OUT_CHANNEL   15
  64 #define ALI_CENTER_CHANNEL      24
  65 #define ALI_LEF_CHANNEL         23
  66 #define ALI_SURR_LEFT_CHANNEL   26
  67 #define ALI_SURR_RIGHT_CHANNEL  25
  68 #define ALI_MODEM_IN_CHANNEL    21
  69 #define ALI_MODEM_OUT_CHANNEL   20
  70
  71 #define SNDRV_ALI_VOICE_TYPE_PCM        01
  72 #define SNDRV_ALI_VOICE_TYPE_OTH        02
  73
  74 #define ALI_5451_V02            0x02
  75
  76 /*
  77  *  Direct Registers
  78  */
  79
  80 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
  81 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
  82 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
  83 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
  84 #define ALI_MPUR0               0x20
  85 #define ALI_MPUR1               0x21
  86 #define ALI_MPUR2               0x22
  87 #define ALI_MPUR3               0x23
  88
  89 #define ALI_AC97_WRITE          0x40
  90 #define ALI_AC97_READ           0x44
  91
  92 #define ALI_SCTRL               0x48
  93 #define   ALI_SPDIF_OUT_ENABLE          0x20
  94 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
  95 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
  96 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
  97 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
  98 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
  99 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 100 #define ALI_AC97_GPIO           0x4c
 101 #define   ALI_AC97_GPIO_ENABLE          0x8000
 102 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 103 #define ALI_SPDIF_CS            0x70
 104 #define ALI_SPDIF_CTRL          0x74
 105 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 106 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 107 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 108 #define ALI_START               0x80
 109 #define ALI_STOP                0x84
 110 #define ALI_CSPF                0x90
 111 #define ALI_AINT                0x98
 112 #define ALI_GC_CIR              0xa0
 113         #define ENDLP_IE                0x00001000
 114         #define MIDLP_IE                0x00002000
 115 #define ALI_AINTEN              0xa4
 116 #define ALI_VOLUME              0xa8
 117 #define ALI_SBDELTA_DELTA_R     0xac
 118 #define ALI_MISCINT             0xb0
 119         #define ADDRESS_IRQ             0x00000020
 120         #define TARGET_REACHED          0x00008000
 121         #define MIXER_OVERFLOW          0x00000800
 122         #define MIXER_UNDERFLOW         0x00000400
 123         #define GPIO_IRQ                0x01000000
 124 #define ALI_SBBL_SBCL           0xc0
 125 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 126 #define ALI_STIMER              0xc8
 127 #define ALI_GLOBAL_CONTROL      0xd4
 128 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 129 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 130 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 131 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 132 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 133
 134 #define ALI_CSO_ALPHA_FMS       0xe0
 135 #define ALI_LBA                 0xe4
 136 #define ALI_ESO_DELTA           0xe8
 137 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 138 #define ALI_EBUF1               0xf4
 139 #define ALI_EBUF2               0xf8
 140
 141 #define ALI_REG(codec, x) ((codec)->port + x)
 142
 143 #define MAX_CODECS 2
 144
 145
 146 struct snd_ali;
 147 struct snd_ali_voice;
 148
 149 struct snd_ali_channel_control {
 150         /* register data */
 151         struct REGDATA {
 152                 unsigned int start;
 153                 unsigned int stop;
 154                 unsigned int aint;
 155                 unsigned int ainten;
 156         } data;
 157
 158         /* register addresses */
 159         struct REGS {
 160                 unsigned int start;
 161                 unsigned int stop;
 162                 unsigned int aint;
 163                 unsigned int ainten;
 164                 unsigned int ac97read;
 165                 unsigned int ac97write;
 166         } regs;
 167
 168 };
 169
 170 struct snd_ali_voice {
 171         unsigned int number;
 172         unsigned int use :1,
 173                 pcm :1,
 174                 midi :1,
 175                 mode :1,
 176                 synth :1,
 177                 running :1;
 178
 179         /* PCM data */
 180         struct snd_ali *codec;
 181         struct snd_pcm_substream *substream;
 182         struct snd_ali_voice *extra;
 183
 184         int eso;                /* final ESO value for channel */
 185         int count;              /* runtime->period_size */
 186
 187         /* --- */
 188
 189         void *private_data;
 190         void (*private_free)(void *private_data);
 191 };
 192
 193
 194 struct snd_alidev {
 195
 196         struct snd_ali_voice voices[ALI_CHANNELS];
 197
 198         unsigned int    chcnt;                  /* num of opened channels */
 199         unsigned int    chmap;                  /* bitmap for opened channels */
 200         unsigned int synthcount;
 201
 202 };
 203
 204
 205 #define ALI_GLOBAL_REGS         56
 206 #define ALI_CHANNEL_REGS        8
 207 struct snd_ali_image {
 208         u32 regs[ALI_GLOBAL_REGS];
 209         u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 210 };
 211
 212
 213 struct snd_ali {
 214         int             irq;
 215         unsigned long   port;
 216         unsigned char   revision;
 217
 218         unsigned int hw_initialized :1;
 219         unsigned int spdif_support :1;
 220
 221         struct pci_dev  *pci;
 222         struct pci_dev  *pci_m1533;
 223         struct pci_dev  *pci_m7101;
 224
 225         struct snd_card *card;
 226         struct snd_pcm  *pcm[MAX_CODECS];
 227         struct snd_alidev       synth;
 228         struct snd_ali_channel_control chregs;
 229
 230         /* S/PDIF Mask */
 231         unsigned int    spdif_mask;
 232
 233         unsigned int spurious_irq_count;
 234         unsigned int spurious_irq_max_delta;
 235
 236         unsigned int num_of_codecs;
 237
 238         struct snd_ac97_bus *ac97_bus;
 239         struct snd_ac97 *ac97[MAX_CODECS];
 240         unsigned short  ac97_ext_id;
 241         unsigned short  ac97_ext_status;
 242
 243         spinlock_t      reg_lock;
 244         spinlock_t      voice_alloc;
 245
 246         struct snd_ali_image image;
 247 };
 248
 249 static const struct pci_device_id snd_ali_ids[] = {
 250         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 251         {0, }
 252 };
 253 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 254
 255 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 256 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 257 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 258                                unsigned short);
 259
 260 /*
 261  *  AC97 ACCESS
 262  */
 263
 264 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 265                                              unsigned int port)
 266 {
 267         return (unsigned int)inl(ALI_REG(codec, port));
 268 }
 269
 270 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 271                                      unsigned int port,
 272                                      unsigned int val)
 273 {
 274         outl((unsigned int)val, ALI_REG(codec, port));
 275 }
 276
 277 static int snd_ali_codec_ready(struct snd_ali *codec,
 278                                unsigned int port)
 279 {
 280         unsigned long end_time;
 281         unsigned int res;
 282
 283         end_time = jiffies + msecs_to_jiffies(250);
 284
 285         for (;;) {
 286                 res = snd_ali_5451_peek(codec,port);
 287                 if (!(res & 0x8000))
 288                         return 0;
 289                 if (!time_after_eq(end_time, jiffies))
 290                         break;
 291                 schedule_timeout_uninterruptible(1);
 292         }
 293
 294         snd_ali_5451_poke(codec, port, res & ~0x8000);
 295         dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n");
 296         return -EIO;
 297 }
 298
 299 static int snd_ali_stimer_ready(struct snd_ali *codec)
 300 {
 301         unsigned long end_time;
 302         unsigned long dwChk1,dwChk2;
 303
 304         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 305         end_time = jiffies + msecs_to_jiffies(250);
 306
 307         for (;;) {
 308                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 309                 if (dwChk2 != dwChk1)
 310                         return 0;
 311                 if (!time_after_eq(end_time, jiffies))
 312                         break;
 313                 schedule_timeout_uninterruptible(1);
 314         }
 315
 316         dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
 317         return -EIO;
 318 }
 319
 320 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 321                                unsigned short reg,
 322                                unsigned short val)
 323 {
 324         unsigned int dwVal;
 325         unsigned int port;
 326
 327         if (reg >= 0x80) {
 328                 dev_err(codec->card->dev,
 329                         "ali_codec_poke: reg(%xh) invalid.\n", reg);
 330                 return;
 331         }
 332
 333         port = codec->chregs.regs.ac97write;
 334
 335         if (snd_ali_codec_ready(codec, port) < 0)
 336                 return;
 337         if (snd_ali_stimer_ready(codec) < 0)
 338                 return;
 339
 340         dwVal  = (unsigned int) (reg & 0xff);
 341         dwVal |= 0x8000 | (val << 16);
 342         if (secondary)
 343                 dwVal |= 0x0080;
 344         if (codec->revision == ALI_5451_V02)
 345                 dwVal |= 0x0100;
 346
 347         snd_ali_5451_poke(codec, port, dwVal);
 348
 349         return ;
 350 }
 351
 352 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 353                                          int secondary,
 354                                          unsigned short reg)
 355 {
 356         unsigned int dwVal;
 357         unsigned int port;
 358
 359         if (reg >= 0x80) {
 360                 dev_err(codec->card->dev,
 361                         "ali_codec_peek: reg(%xh) invalid.\n", reg);
 362                 return ~0;
 363         }
 364
 365         port = codec->chregs.regs.ac97read;
 366
 367         if (snd_ali_codec_ready(codec, port) < 0)
 368                 return ~0;
 369         if (snd_ali_stimer_ready(codec) < 0)
 370                 return ~0;
 371
 372         dwVal  = (unsigned int) (reg & 0xff);
 373         dwVal |= 0x8000;                                /* bit 15*/
 374         if (secondary)
 375                 dwVal |= 0x0080;
 376
 377         snd_ali_5451_poke(codec, port, dwVal);
 378
 379         if (snd_ali_stimer_ready(codec) < 0)
 380                 return ~0;
 381         if (snd_ali_codec_ready(codec, port) < 0)
 382                 return ~0;
 383
 384         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 385 }
 386
 387 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 388                                 unsigned short reg,
 389                                 unsigned short val )
 390 {
 391         struct snd_ali *codec = ac97->private_data;
 392
 393         dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
 394         if (reg == AC97_GPIO_STATUS) {
 395                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 396                      ALI_REG(codec, ALI_AC97_GPIO));
 397                 return;
 398         }
 399         snd_ali_codec_poke(codec, ac97->num, reg, val);
 400         return ;
 401 }
 402
 403
 404 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 405                                          unsigned short reg)
 406 {
 407         struct snd_ali *codec = ac97->private_data;
 408
 409         dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
 410         return snd_ali_codec_peek(codec, ac97->num, reg);
 411 }
 412
 413 /*
 414  *      AC97 Reset
 415  */
 416
 417 static int snd_ali_reset_5451(struct snd_ali *codec)
 418 {
 419         struct pci_dev *pci_dev;
 420         unsigned short wCount, wReg;
 421         unsigned int   dwVal;
 422
 423         pci_dev = codec->pci_m1533;
 424         if (pci_dev) {
 425                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 426                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 427                 mdelay(5);
 428                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 429                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 430                 mdelay(5);
 431         }
 432
 433         pci_dev = codec->pci;
 434         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 435         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 436         udelay(500);
 437         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 438         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 439         mdelay(5);
 440
 441         wCount = 200;
 442         while(wCount--) {
 443                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 444                 if ((wReg & 0x000f) == 0x000f)
 445                         return 0;
 446                 mdelay(5);
 447         }
 448
 449         /* non-fatal if you have a non PM capable codec */
 450         /* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
 451         return 0;
 452 }
 453
 454 /*
 455  *  ALI 5451 Controller
 456  */
 457
 458 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 459                                            unsigned int channel)
 460 {
 461         unsigned long dwVal;
 462
 463         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 464         dwVal |= 1 << (channel & 0x0000001f);
 465         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 466 }
 467
 468 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 469                                             unsigned int channel)
 470 {
 471         unsigned long dwVal;
 472
 473         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 474         dwVal &= ~(1 << (channel & 0x0000001f));
 475         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 476 }
 477
 478 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 479 {
 480         unsigned int gc;
 481
 482         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 483         gc |= ENDLP_IE;
 484         gc |= MIDLP_IE;
 485         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 486 }
 487
 488 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 489 {
 490         unsigned int gc;
 491
 492         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 493         gc &= ~ENDLP_IE;
 494         gc &= ~MIDLP_IE;
 495         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 496 }
 497
 498 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 499                                       unsigned int channel)
 500 {
 501         unsigned int mask;
 502         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 503
 504         dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
 505
 506         mask = 1 << (channel & 0x1f);
 507         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 508         pchregs->data.ainten &= ~mask;
 509         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 510 }
 511
 512 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 513 {
 514         unsigned int idx =  channel & 0x1f;
 515
 516         if (codec->synth.chcnt >= ALI_CHANNELS){
 517                 dev_err(codec->card->dev,
 518                            "ali_alloc_pcm_channel: no free channels.\n");
 519                 return -1;
 520         }
 521
 522         if (!(codec->synth.chmap & (1 << idx))) {
 523                 codec->synth.chmap |= 1 << idx;
 524                 codec->synth.chcnt++;
 525                 dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
 526                 return idx;
 527         }
 528         return -1;
 529 }
 530
 531 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 532 {
 533         int idx;
 534         int result = -1;
 535
 536         dev_dbg(codec->card->dev,
 537                 "find_free_channel: for %s\n", rec ? "rec" : "pcm");
 538
 539         /* recording */
 540         if (rec) {
 541                 if (codec->spdif_support &&
 542                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 543                      ALI_SPDIF_IN_SUPPORT))
 544                         idx = ALI_SPDIF_IN_CHANNEL;
 545                 else
 546                         idx = ALI_PCM_IN_CHANNEL;
 547
 548                 result = snd_ali_alloc_pcm_channel(codec, idx);
 549                 if (result >= 0)
 550                         return result;
 551                 else {
 552                         dev_err(codec->card->dev,
 553                                 "ali_find_free_channel: record channel is busy now.\n");
 554                         return -1;
 555                 }
 556         }
 557
 558         /* playback... */
 559         if (codec->spdif_support &&
 560             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 561              ALI_SPDIF_OUT_CH_ENABLE)) {
 562                 idx = ALI_SPDIF_OUT_CHANNEL;
 563                 result = snd_ali_alloc_pcm_channel(codec, idx);
 564                 if (result >= 0)
 565                         return result;
 566                 else
 567                         dev_err(codec->card->dev,
 568                                 "ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 569         }
 570
 571         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 572                 result = snd_ali_alloc_pcm_channel(codec, idx);
 573                 if (result >= 0)
 574                         return result;
 575         }
 576         dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
 577         return -1;
 578 }
 579
 580 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 581 {
 582         unsigned int idx = channel & 0x0000001f;
 583
 584         dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
 585
 586         if (channel < 0 || channel >= ALI_CHANNELS)
 587                 return;
 588
 589         if (!(codec->synth.chmap & (1 << idx))) {
 590                 dev_err(codec->card->dev,
 591                         "ali_free_channel_pcm: channel %d is not in use.\n",
 592                         channel);
 593                 return;
 594         } else {
 595                 codec->synth.chmap &= ~(1 << idx);
 596                 codec->synth.chcnt--;
 597         }
 598 }
 599
 600 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 601 {
 602         unsigned int mask = 1 << (channel & 0x1f);
 603
 604         dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
 605         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 606 }
 607
 608 /*
 609  *    S/PDIF Part
 610  */
 611
 612 static void snd_ali_delay(struct snd_ali *codec,int interval)
 613 {
 614         unsigned long  begintimer,currenttimer;
 615
 616         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 617         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 618
 619         while (currenttimer < begintimer + interval) {
 620                 if (snd_ali_stimer_ready(codec) < 0)
 621                         break;
 622                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 623                 cpu_relax();
 624         }
 625 }
 626
 627 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 628 {
 629         u16 wval;
 630         u16 count = 0;
 631         u8  bval, R1 = 0, R2;
 632
 633         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 634         bval |= 0x1F;
 635         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 636
 637         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 638                 count ++;
 639                 snd_ali_delay(codec, 6);
 640                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 641                 R1 = bval & 0x1F;
 642         }
 643
 644         if (count > 50000) {
 645                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 646                 return;
 647         }
 648
 649         for (count = 0; count <= 50000; count++) {
 650                 snd_ali_delay(codec, 6);
 651                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 652                 R2 = bval & 0x1F;
 653                 if (R2 != R1)
 654                         R1 = R2;
 655                 else
 656                         break;
 657         }
 658
 659         if (count > 50000) {
 660                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 661                 return;
 662         }
 663
 664         if (R2 >= 0x0b && R2 <= 0x0e) {
 665                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 666                 wval &= 0xe0f0;
 667                 wval |= (0x09 << 8) | 0x05;
 668                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 669
 670                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 671                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 672         } else if (R2 == 0x12) {
 673                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 674                 wval &= 0xe0f0;
 675                 wval |= (0x0e << 8) | 0x08;
 676                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 677
 678                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 679                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 680         }
 681 }
 682
 683 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 684 {
 685         u32     dwRate;
 686         u8      bval;
 687
 688         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 689         bval &= 0x7f;
 690         bval |= 0x40;
 691         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 692
 693         snd_ali_detect_spdif_rate(codec);
 694
 695         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 696         bval &= 0x0f;
 697
 698         switch (bval) {
 699         case 0: dwRate = 44100; break;
 700         case 1: dwRate = 48000; break;
 701         case 2: dwRate = 32000; break;
 702         default: dwRate = 0; break;
 703         }
 704
 705         return dwRate;
 706 }
 707
 708 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 709 {
 710         unsigned int dwVal;
 711
 712         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 713         dwVal |= ALI_SPDIF_IN_SUPPORT;
 714         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 715
 716         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 717         dwVal |= 0x02;
 718         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 719
 720         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 721 }
 722
 723 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 724 {
 725         unsigned int dwVal;
 726
 727         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 728         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 729         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 730
 731         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 732 }
 733
 734
 735 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 736 {
 737         unsigned char  bVal;
 738         unsigned int  dwRate;
 739
 740         switch (rate) {
 741         case 32000: dwRate = 0x300; break;
 742         case 48000: dwRate = 0x200; break;
 743         default: dwRate = 0; break;
 744         }
 745
 746         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 747         bVal &= (unsigned char)(~(1<<6));
 748
 749         bVal |= 0x80;           /* select right */
 750         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 751         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 752
 753         bVal &= ~0x80;  /* select left */
 754         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 755         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 756 }
 757
 758 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 759 {
 760         unsigned short wVal;
 761         unsigned char bVal;
 762         struct pci_dev *pci_dev;
 763
 764         pci_dev = codec->pci_m1533;
 765         if (pci_dev == NULL)
 766                 return;
 767         pci_read_config_byte(pci_dev, 0x61, &bVal);
 768         bVal |= 0x40;
 769         pci_write_config_byte(pci_dev, 0x61, bVal);
 770         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 771         bVal |= 0x01;
 772         pci_write_config_byte(pci_dev, 0x7d, bVal);
 773
 774         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 775         bVal &= (~0x20);
 776         bVal |= 0x10;
 777         pci_write_config_byte(pci_dev, 0x7e, bVal);
 778
 779         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 780         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 781
 782         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 783         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 784
 785         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 786         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 787         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 788         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 789 }
 790
 791 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 792 {
 793         unsigned short wVal;
 794
 795         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 796         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 797         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 798 /*
 799         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 800         if (flag & ALI_SPDIF_OUT_NON_PCM)
 801                 wVal |= 0x0002;
 802         else
 803                 wVal &= (~0x0002);
 804         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 805 */
 806         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 807 }
 808
 809 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 810 {
 811         unsigned short wVal;
 812
 813         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 814         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 815         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 816
 817         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 818 }
 819
 820 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 821 {
 822         unsigned char  bVal;
 823
 824         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 825         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 826
 827         snd_ali_disable_spdif_chnout(codec);
 828 }
 829
 830 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 831 {
 832         struct snd_ali_voice *pvoice;
 833         struct snd_ali_channel_control *pchregs;
 834         unsigned int old, mask;
 835
 836         pchregs = &(codec->chregs);
 837
 838         /* check if interrupt occurred for channel */
 839         old  = pchregs->data.aint;
 840         mask = 1U << (channel & 0x1f);
 841
 842         if (!(old & mask))
 843                 return;
 844
 845         pvoice = &codec->synth.voices[channel];
 846
 847         udelay(100);
 848         spin_lock(&codec->reg_lock);
 849
 850         if (pvoice->pcm && pvoice->substream) {
 851                 /* pcm interrupt */
 852                 if (pvoice->running) {
 853                         dev_dbg(codec->card->dev,
 854                                 "update_ptr: cso=%4.4x cspf=%d.\n",
 855                                 inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
 856                                 (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
 857                         spin_unlock(&codec->reg_lock);
 858                         snd_pcm_period_elapsed(pvoice->substream);
 859                         spin_lock(&codec->reg_lock);
 860                 } else {
 861                         snd_ali_stop_voice(codec, channel);
 862                         snd_ali_disable_voice_irq(codec, channel);
 863                 }
 864         } else if (codec->synth.voices[channel].synth) {
 865                 /* synth interrupt */
 866         } else if (codec->synth.voices[channel].midi) {
 867                 /* midi interrupt */
 868         } else {
 869                 /* unknown interrupt */
 870                 snd_ali_stop_voice(codec, channel);
 871                 snd_ali_disable_voice_irq(codec, channel);
 872         }
 873         spin_unlock(&codec->reg_lock);
 874         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 875         pchregs->data.aint = old & (~mask);
 876 }
 877
 878 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 879 {
 880         struct snd_ali  *codec = dev_id;
 881         int channel;
 882         unsigned int audio_int;
 883         struct snd_ali_channel_control *pchregs;
 884
 885         if (codec == NULL || !codec->hw_initialized)
 886                 return IRQ_NONE;
 887
 888         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 889         if (!audio_int)
 890                 return IRQ_NONE;
 891
 892         pchregs = &(codec->chregs);
 893         if (audio_int & ADDRESS_IRQ) {
 894                 /* get interrupt status for all channels */
 895                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 896                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 897                         snd_ali_update_ptr(codec, channel);
 898         }
 899         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 900                 ALI_REG(codec, ALI_MISCINT));
 901
 902         return IRQ_HANDLED;
 903 }
 904
 905
 906 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 907                                                  int type, int rec, int channel)
 908 {
 909         struct snd_ali_voice *pvoice;
 910         int idx;
 911
 912         dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
 913
 914         spin_lock_irq(&codec->voice_alloc);
 915         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 916                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 917                         snd_ali_find_free_channel(codec,rec);
 918                 if (idx < 0) {
 919                         dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
 920                         spin_unlock_irq(&codec->voice_alloc);
 921                         return NULL;
 922                 }
 923                 pvoice = &(codec->synth.voices[idx]);
 924                 pvoice->codec = codec;
 925                 pvoice->use = 1;
 926                 pvoice->pcm = 1;
 927                 pvoice->mode = rec;
 928                 spin_unlock_irq(&codec->voice_alloc);
 929                 return pvoice;
 930         }
 931         spin_unlock_irq(&codec->voice_alloc);
 932         return NULL;
 933 }
 934
 935
 936 static void snd_ali_free_voice(struct snd_ali * codec,
 937                                struct snd_ali_voice *pvoice)
 938 {
 939         void (*private_free)(void *);
 940         void *private_data;
 941
 942         dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
 943         if (!pvoice->use)
 944                 return;
 945         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 946         spin_lock_irq(&codec->voice_alloc);
 947         private_free = pvoice->private_free;
 948         private_data = pvoice->private_data;
 949         pvoice->private_free = NULL;
 950         pvoice->private_data = NULL;
 951         if (pvoice->pcm)
 952                 snd_ali_free_channel_pcm(codec, pvoice->number);
 953         pvoice->use = pvoice->pcm = pvoice->synth = 0;
 954         pvoice->substream = NULL;
 955         spin_unlock_irq(&codec->voice_alloc);
 956         if (private_free)
 957                 private_free(private_data);
 958 }
 959
 960
 961 static void snd_ali_clear_voices(struct snd_ali *codec,
 962                                  unsigned int v_min,
 963                                  unsigned int v_max)
 964 {
 965         unsigned int i;
 966
 967         for (i = v_min; i <= v_max; i++) {
 968                 snd_ali_stop_voice(codec, i);
 969                 snd_ali_disable_voice_irq(codec, i);
 970         }
 971 }
 972
 973 static void snd_ali_write_voice_regs(struct snd_ali *codec,
 974                          unsigned int Channel,
 975                          unsigned int LBA,
 976                          unsigned int CSO,
 977                          unsigned int ESO,
 978                          unsigned int DELTA,
 979                          unsigned int ALPHA_FMS,
 980                          unsigned int GVSEL,
 981                          unsigned int PAN,
 982                          unsigned int VOL,
 983                          unsigned int CTRL,
 984                          unsigned int EC)
 985 {
 986         unsigned int ctlcmds[4];
 987
 988         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
 989
 990         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
 991         ctlcmds[1] =  LBA;
 992         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
 993         ctlcmds[3] =  (GVSEL << 31) |
 994                       ((PAN & 0x0000007f) << 24) |
 995                       ((VOL & 0x000000ff) << 16) |
 996                       ((CTRL & 0x0000000f) << 12) |
 997                       (EC & 0x00000fff);
 998
 999         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1000
1001         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1002         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1003         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1004         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1005
1006         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1007         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1008 }
1009
1010 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1011 {
1012         unsigned int delta;
1013
1014         if (rate < 4000)
1015                 rate = 4000;
1016         if (rate > 48000)
1017                 rate = 48000;
1018
1019         if (rec) {
1020                 if (rate == 44100)
1021                         delta = 0x116a;
1022                 else if (rate == 8000)
1023                         delta = 0x6000;
1024                 else if (rate == 48000)
1025                         delta = 0x1000;
1026                 else
1027                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1028         } else {
1029                 if (rate == 44100)
1030                         delta = 0xeb3;
1031                 else if (rate == 8000)
1032                         delta = 0x2ab;
1033                 else if (rate == 48000)
1034                         delta = 0x1000;
1035                 else
1036                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1037         }
1038
1039         return delta;
1040 }
1041
1042 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1043 {
1044         unsigned int CTRL;
1045         struct snd_pcm_runtime *runtime = substream->runtime;
1046
1047         /* set ctrl mode
1048            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1049          */
1050         CTRL = 0x00000001;
1051         if (snd_pcm_format_width(runtime->format) == 16)
1052                 CTRL |= 0x00000008;     /* 16-bit data */
1053         if (!snd_pcm_format_unsigned(runtime->format))
1054                 CTRL |= 0x00000002;     /* signed data */
1055         if (runtime->channels > 1)
1056                 CTRL |= 0x00000004;     /* stereo data */
1057         return CTRL;
1058 }
1059
1060 /*
1061  *  PCM part
1062  */
1063
1064 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1065                                int cmd)
1066
1067 {
1068         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1069         struct snd_pcm_substream *s;
1070         unsigned int what, whati;
1071         struct snd_ali_voice *pvoice, *evoice;
1072         unsigned int val;
1073         int do_start;
1074
1075         switch (cmd) {
1076         case SNDRV_PCM_TRIGGER_START:
1077         case SNDRV_PCM_TRIGGER_RESUME:
1078                 do_start = 1;
1079                 break;
1080         case SNDRV_PCM_TRIGGER_STOP:
1081         case SNDRV_PCM_TRIGGER_SUSPEND:
1082                 do_start = 0;
1083                 break;
1084         default:
1085                 return -EINVAL;
1086         }
1087
1088         what = whati = 0;
1089         snd_pcm_group_for_each_entry(s, substream) {
1090                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1091                         pvoice = s->runtime->private_data;
1092                         evoice = pvoice->extra;
1093                         what |= 1 << (pvoice->number & 0x1f);
1094                         if (evoice == NULL)
1095                                 whati |= 1 << (pvoice->number & 0x1f);
1096                         else {
1097                                 whati |= 1 << (evoice->number & 0x1f);
1098                                 what |= 1 << (evoice->number & 0x1f);
1099                         }
1100                         if (do_start) {
1101                                 pvoice->running = 1;
1102                                 if (evoice != NULL)
1103                                         evoice->running = 1;
1104                         } else {
1105                                 pvoice->running = 0;
1106                                 if (evoice != NULL)
1107                                         evoice->running = 0;
1108                         }
1109                         snd_pcm_trigger_done(s, substream);
1110                 }
1111         }
1112         spin_lock(&codec->reg_lock);
1113         if (!do_start)
1114                 outl(what, ALI_REG(codec, ALI_STOP));
1115         val = inl(ALI_REG(codec, ALI_AINTEN));
1116         if (do_start)
1117                 val |= whati;
1118         else
1119                 val &= ~whati;
1120         outl(val, ALI_REG(codec, ALI_AINTEN));
1121         if (do_start)
1122                 outl(what, ALI_REG(codec, ALI_START));
1123         dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1124         spin_unlock(&codec->reg_lock);
1125
1126         return 0;
1127 }
1128
1129 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1130                                       struct snd_pcm_hw_params *hw_params)
1131 {
1132         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1133         struct snd_pcm_runtime *runtime = substream->runtime;
1134         struct snd_ali_voice *pvoice = runtime->private_data;
1135         struct snd_ali_voice *evoice = pvoice->extra;
1136
1137         /* voice management */
1138
1139         if (params_buffer_size(hw_params) / 2 !=
1140             params_period_size(hw_params)) {
1141                 if (!evoice) {
1142                         evoice = snd_ali_alloc_voice(codec,
1143                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1144                                                      0, -1);
1145                         if (!evoice)
1146                                 return -ENOMEM;
1147                         pvoice->extra = evoice;
1148                         evoice->substream = substream;
1149                 }
1150         } else {
1151                 if (evoice) {
1152                         snd_ali_free_voice(codec, evoice);
1153                         pvoice->extra = evoice = NULL;
1154                 }
1155         }
1156
1157         return 0;
1158 }
1159
1160 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1161 {
1162         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1163         struct snd_pcm_runtime *runtime = substream->runtime;
1164         struct snd_ali_voice *pvoice = runtime->private_data;
1165         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1166
1167         if (evoice) {
1168                 snd_ali_free_voice(codec, evoice);
1169                 pvoice->extra = NULL;
1170         }
1171         return 0;
1172 }
1173
1174 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1175 {
1176         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1177         struct snd_pcm_runtime *runtime = substream->runtime;
1178         struct snd_ali_voice *pvoice = runtime->private_data;
1179         struct snd_ali_voice *evoice = pvoice->extra;
1180
1181         unsigned int LBA;
1182         unsigned int Delta;
1183         unsigned int ESO;
1184         unsigned int CTRL;
1185         unsigned int GVSEL;
1186         unsigned int PAN;
1187         unsigned int VOL;
1188         unsigned int EC;
1189
1190         dev_dbg(codec->card->dev, "playback_prepare ...\n");
1191
1192         spin_lock_irq(&codec->reg_lock);
1193
1194         /* set Delta (rate) value */
1195         Delta = snd_ali_convert_rate(runtime->rate, 0);
1196
1197         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1198             pvoice->number == ALI_PCM_IN_CHANNEL)
1199                 snd_ali_disable_special_channel(codec, pvoice->number);
1200         else if (codec->spdif_support &&
1201                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1202                   ALI_SPDIF_OUT_CH_ENABLE)
1203                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1204                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1205                 Delta = 0x1000;
1206         }
1207
1208         /* set Loop Back Address */
1209         LBA = runtime->dma_addr;
1210
1211         /* set interrupt count size */
1212         pvoice->count = runtime->period_size;
1213
1214         /* set target ESO for channel */
1215         pvoice->eso = runtime->buffer_size;
1216
1217         dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1218                        pvoice->eso, pvoice->count);
1219
1220         /* set ESO to capture first MIDLP interrupt */
1221         ESO = pvoice->eso -1;
1222         /* set ctrl mode */
1223         CTRL = snd_ali_control_mode(substream);
1224
1225         GVSEL = 1;
1226         PAN = 0;
1227         VOL = 0;
1228         EC = 0;
1229         dev_dbg(codec->card->dev, "playback_prepare:\n");
1230         dev_dbg(codec->card->dev,
1231                 "ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1232                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1233         snd_ali_write_voice_regs(codec,
1234                                  pvoice->number,
1235                                  LBA,
1236                                  0,     /* cso */
1237                                  ESO,
1238                                  Delta,
1239                                  0,     /* alpha */
1240                                  GVSEL,
1241                                  PAN,
1242                                  VOL,
1243                                  CTRL,
1244                                  EC);
1245         if (evoice) {
1246                 evoice->count = pvoice->count;
1247                 evoice->eso = pvoice->count << 1;
1248                 ESO = evoice->eso - 1;
1249                 snd_ali_write_voice_regs(codec,
1250                                          evoice->number,
1251                                          LBA,
1252                                          0,     /* cso */
1253                                          ESO,
1254                                          Delta,
1255                                          0,     /* alpha */
1256                                          GVSEL,
1257                                          0x7f,
1258                                          0x3ff,
1259                                          CTRL,
1260                                          EC);
1261         }
1262         spin_unlock_irq(&codec->reg_lock);
1263         return 0;
1264 }
1265
1266
1267 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1268 {
1269         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1270         struct snd_pcm_runtime *runtime = substream->runtime;
1271         struct snd_ali_voice *pvoice = runtime->private_data;
1272         unsigned int LBA;
1273         unsigned int Delta;
1274         unsigned int ESO;
1275         unsigned int CTRL;
1276         unsigned int GVSEL;
1277         unsigned int PAN;
1278         unsigned int VOL;
1279         unsigned int EC;
1280         u8       bValue;
1281
1282         spin_lock_irq(&codec->reg_lock);
1283
1284         dev_dbg(codec->card->dev, "ali_prepare...\n");
1285
1286         snd_ali_enable_special_channel(codec,pvoice->number);
1287
1288         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1289                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1290                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1291
1292         /* Prepare capture intr channel */
1293         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1294
1295                 unsigned int rate;
1296
1297                 spin_unlock_irq(&codec->reg_lock);
1298                 if (codec->revision != ALI_5451_V02)
1299                         return -1;
1300
1301                 rate = snd_ali_get_spdif_in_rate(codec);
1302                 if (rate == 0) {
1303                         dev_warn(codec->card->dev,
1304                                  "ali_capture_prepare: spdif rate detect err!\n");
1305                         rate = 48000;
1306                 }
1307                 spin_lock_irq(&codec->reg_lock);
1308                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1309                 if (bValue & 0x10) {
1310                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1311                         dev_warn(codec->card->dev,
1312                                  "clear SPDIF parity error flag.\n");
1313                 }
1314
1315                 if (rate != 48000)
1316                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1317         }
1318
1319         /* set target ESO for channel  */
1320         pvoice->eso = runtime->buffer_size;
1321
1322         /* set interrupt count size  */
1323         pvoice->count = runtime->period_size;
1324
1325         /* set Loop Back Address  */
1326         LBA = runtime->dma_addr;
1327
1328         /* set ESO to capture first MIDLP interrupt  */
1329         ESO = pvoice->eso - 1;
1330         CTRL = snd_ali_control_mode(substream);
1331         GVSEL = 0;
1332         PAN = 0x00;
1333         VOL = 0x00;
1334         EC = 0;
1335
1336         snd_ali_write_voice_regs(    codec,
1337                                      pvoice->number,
1338                                      LBA,
1339                                      0, /* cso */
1340                                      ESO,
1341                                      Delta,
1342                                      0, /* alpha */
1343                                      GVSEL,
1344                                      PAN,
1345                                      VOL,
1346                                      CTRL,
1347                                      EC);
1348
1349         spin_unlock_irq(&codec->reg_lock);
1350
1351         return 0;
1352 }
1353
1354
1355 static snd_pcm_uframes_t
1356 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1357 {
1358         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1359         struct snd_pcm_runtime *runtime = substream->runtime;
1360         struct snd_ali_voice *pvoice = runtime->private_data;
1361         unsigned int cso;
1362
1363         spin_lock(&codec->reg_lock);
1364         if (!pvoice->running) {
1365                 spin_unlock(&codec->reg_lock);
1366                 return 0;
1367         }
1368         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1369         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1370         spin_unlock(&codec->reg_lock);
1371         dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1372
1373         cso %= runtime->buffer_size;
1374         return cso;
1375 }
1376
1377
1378 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1379 {
1380         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1381         struct snd_pcm_runtime *runtime = substream->runtime;
1382         struct snd_ali_voice *pvoice = runtime->private_data;
1383         unsigned int cso;
1384
1385         spin_lock(&codec->reg_lock);
1386         if (!pvoice->running) {
1387                 spin_unlock(&codec->reg_lock);
1388                 return 0;
1389         }
1390         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1391         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1392         spin_unlock(&codec->reg_lock);
1393
1394         cso %= runtime->buffer_size;
1395         return cso;
1396 }
1397
1398 static const struct snd_pcm_hardware snd_ali_playback =
1399 {
1400         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1401                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1402                          SNDRV_PCM_INFO_MMAP_VALID |
1403                          SNDRV_PCM_INFO_RESUME |
1404                          SNDRV_PCM_INFO_SYNC_START),
1405         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1406                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1407         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1408         .rate_min =             4000,
1409         .rate_max =             48000,
1410         .channels_min =         1,
1411         .channels_max =         2,
1412         .buffer_bytes_max =     (256*1024),
1413         .period_bytes_min =     64,
1414         .period_bytes_max =     (256*1024),
1415         .periods_min =          1,
1416         .periods_max =          1024,
1417         .fifo_size =            0,
1418 };
1419
1420 /*
1421  *  Capture support device description
1422  */
1423
1424 static const struct snd_pcm_hardware snd_ali_capture =
1425 {
1426         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1427                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1428                          SNDRV_PCM_INFO_MMAP_VALID |
1429                          SNDRV_PCM_INFO_RESUME |
1430                          SNDRV_PCM_INFO_SYNC_START),
1431         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1432                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1433         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1434         .rate_min =             4000,
1435         .rate_max =             48000,
1436         .channels_min =         1,
1437         .channels_max =         2,
1438         .buffer_bytes_max =     (128*1024),
1439         .period_bytes_min =     64,
1440         .period_bytes_max =     (128*1024),
1441         .periods_min =          1,
1442         .periods_max =          1024,
1443         .fifo_size =            0,
1444 };
1445
1446 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1447 {
1448         struct snd_ali_voice *pvoice = runtime->private_data;
1449
1450         if (pvoice)
1451                 snd_ali_free_voice(pvoice->codec, pvoice);
1452 }
1453
1454 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1455                         int channel, const struct snd_pcm_hardware *phw)
1456 {
1457         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1458         struct snd_pcm_runtime *runtime = substream->runtime;
1459         struct snd_ali_voice *pvoice;
1460
1461         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1462                                      channel);
1463         if (!pvoice)
1464                 return -EAGAIN;
1465
1466         pvoice->substream = substream;
1467         runtime->private_data = pvoice;
1468         runtime->private_free = snd_ali_pcm_free_substream;
1469
1470         runtime->hw = *phw;
1471         snd_pcm_set_sync(substream);
1472         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1473                                      0, 64*1024);
1474         return 0;
1475 }
1476
1477 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1478 {
1479         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1480 }
1481
1482 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1483 {
1484         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1485 }
1486
1487 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1488 {
1489         return 0;
1490 }
1491
1492 static int snd_ali_close(struct snd_pcm_substream *substream)
1493 {
1494         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1495         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1496
1497         snd_ali_disable_special_channel(codec,pvoice->number);
1498
1499         return 0;
1500 }
1501
1502 static const struct snd_pcm_ops snd_ali_playback_ops = {
1503         .open =         snd_ali_playback_open,
1504         .close =        snd_ali_playback_close,
1505         .hw_params =    snd_ali_playback_hw_params,
1506         .hw_free =      snd_ali_playback_hw_free,
1507         .prepare =      snd_ali_playback_prepare,
1508         .trigger =      snd_ali_trigger,
1509         .pointer =      snd_ali_playback_pointer,
1510 };
1511
1512 static const struct snd_pcm_ops snd_ali_capture_ops = {
1513         .open =         snd_ali_capture_open,
1514         .close =        snd_ali_close,
1515         .prepare =      snd_ali_prepare,
1516         .trigger =      snd_ali_trigger,
1517         .pointer =      snd_ali_pointer,
1518 };
1519
1520 /*
1521  * Modem PCM
1522  */
1523
1524 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1525                                  struct snd_pcm_hw_params *hw_params)
1526 {
1527         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1528         unsigned int modem_num = chip->num_of_codecs - 1;
1529         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1530                        params_rate(hw_params));
1531         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1532         return 0;
1533 }
1534
1535 static const struct snd_pcm_hardware snd_ali_modem =
1536 {
1537         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1538                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1539                          SNDRV_PCM_INFO_MMAP_VALID |
1540                          SNDRV_PCM_INFO_RESUME |
1541                          SNDRV_PCM_INFO_SYNC_START),
1542         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1543         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1544                          SNDRV_PCM_RATE_16000),
1545         .rate_min =             8000,
1546         .rate_max =             16000,
1547         .channels_min =         1,
1548         .channels_max =         1,
1549         .buffer_bytes_max =     (256*1024),
1550         .period_bytes_min =     64,
1551         .period_bytes_max =     (256*1024),
1552         .periods_min =          1,
1553         .periods_max =          1024,
1554         .fifo_size =            0,
1555 };
1556
1557 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1558                               int channel)
1559 {
1560         static const unsigned int rates[] = {8000, 9600, 12000, 16000};
1561         static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1562                 .count = ARRAY_SIZE(rates),
1563                 .list = rates,
1564                 .mask = 0,
1565         };
1566         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1567
1568         if (err)
1569                 return err;
1570         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1571                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1572 }
1573
1574 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1575 {
1576         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1577 }
1578
1579 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1580 {
1581         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1582 }
1583
1584 static const struct snd_pcm_ops snd_ali_modem_playback_ops = {
1585         .open =         snd_ali_modem_playback_open,
1586         .close =        snd_ali_close,
1587         .hw_params =    snd_ali_modem_hw_params,
1588         .prepare =      snd_ali_prepare,
1589         .trigger =      snd_ali_trigger,
1590         .pointer =      snd_ali_pointer,
1591 };
1592
1593 static const struct snd_pcm_ops snd_ali_modem_capture_ops = {
1594         .open =         snd_ali_modem_capture_open,
1595         .close =        snd_ali_close,
1596         .hw_params =    snd_ali_modem_hw_params,
1597         .prepare =      snd_ali_prepare,
1598         .trigger =      snd_ali_trigger,
1599         .pointer =      snd_ali_pointer,
1600 };
1601
1602
1603 struct ali_pcm_description {
1604         char *name;
1605         unsigned int playback_num;
1606         unsigned int capture_num;
1607         const struct snd_pcm_ops *playback_ops;
1608         const struct snd_pcm_ops *capture_ops;
1609         unsigned short class;
1610 };
1611
1612
1613 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1614 {
1615         struct snd_ali *codec = pcm->private_data;
1616         codec->pcm[pcm->device] = NULL;
1617 }
1618
1619
1620 static int snd_ali_pcm(struct snd_ali *codec, int device,
1621                        struct ali_pcm_description *desc)
1622 {
1623         struct snd_pcm *pcm;
1624         int err;
1625
1626         err = snd_pcm_new(codec->card, desc->name, device,
1627                           desc->playback_num, desc->capture_num, &pcm);
1628         if (err < 0) {
1629                 dev_err(codec->card->dev,
1630                         "snd_ali_pcm: err called snd_pcm_new.\n");
1631                 return err;
1632         }
1633         pcm->private_data = codec;
1634         pcm->private_free = snd_ali_pcm_free;
1635         if (desc->playback_ops)
1636                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1637                                 desc->playback_ops);
1638         if (desc->capture_ops)
1639                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1640                                 desc->capture_ops);
1641
1642         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1643                                        &codec->pci->dev, 64*1024, 128*1024);
1644
1645         pcm->info_flags = 0;
1646         pcm->dev_class = desc->class;
1647         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1648         strcpy(pcm->name, desc->name);
1649         codec->pcm[0] = pcm;
1650         return 0;
1651 }
1652
1653 static struct ali_pcm_description ali_pcms[] = {
1654         { .name = "ALI 5451",
1655           .playback_num = ALI_CHANNELS,
1656           .capture_num = 1,
1657           .playback_ops = &snd_ali_playback_ops,
1658           .capture_ops = &snd_ali_capture_ops
1659         },
1660         { .name = "ALI 5451 modem",
1661           .playback_num = 1,
1662           .capture_num = 1,
1663           .playback_ops = &snd_ali_modem_playback_ops,
1664           .capture_ops = &snd_ali_modem_capture_ops,
1665           .class = SNDRV_PCM_CLASS_MODEM
1666         }
1667 };
1668
1669 static int snd_ali_build_pcms(struct snd_ali *codec)
1670 {
1671         int i, err;
1672         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1673                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1674                 if (err < 0)
1675                         return err;
1676         }
1677         return 0;
1678 }
1679
1680
1681 #define ALI5451_SPDIF(xname, xindex, value) \
1682 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1683 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1684 .put = snd_ali5451_spdif_put, .private_value = value}
1685
1686 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1687
1688 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1689                                  struct snd_ctl_elem_value *ucontrol)
1690 {
1691         struct snd_ali *codec = kcontrol->private_data;
1692         unsigned int spdif_enable;
1693
1694         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1695
1696         spin_lock_irq(&codec->reg_lock);
1697         switch (kcontrol->private_value) {
1698         case 0:
1699                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1700                 break;
1701         case 1:
1702                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1703                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1704                 break;
1705         case 2:
1706                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1707                 break;
1708         default:
1709                 break;
1710         }
1711         ucontrol->value.integer.value[0] = spdif_enable;
1712         spin_unlock_irq(&codec->reg_lock);
1713         return 0;
1714 }
1715
1716 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1717                                  struct snd_ctl_elem_value *ucontrol)
1718 {
1719         struct snd_ali *codec = kcontrol->private_data;
1720         unsigned int change = 0, spdif_enable = 0;
1721
1722         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1723
1724         spin_lock_irq(&codec->reg_lock);
1725         switch (kcontrol->private_value) {
1726         case 0:
1727                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1728                 change = change ^ spdif_enable;
1729                 if (change) {
1730                         if (spdif_enable) {
1731                                 codec->spdif_mask |= 0x02;
1732                                 snd_ali_enable_spdif_out(codec);
1733                         } else {
1734                                 codec->spdif_mask &= ~(0x02);
1735                                 codec->spdif_mask &= ~(0x04);
1736                                 snd_ali_disable_spdif_out(codec);
1737                         }
1738                 }
1739                 break;
1740         case 1:
1741                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1742                 change = change ^ spdif_enable;
1743                 if (change && (codec->spdif_mask & 0x02)) {
1744                         if (spdif_enable) {
1745                                 codec->spdif_mask |= 0x04;
1746                                 snd_ali_enable_spdif_chnout(codec);
1747                         } else {
1748                                 codec->spdif_mask &= ~(0x04);
1749                                 snd_ali_disable_spdif_chnout(codec);
1750                         }
1751                 }
1752                 break;
1753         case 2:
1754                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1755                 change = change ^ spdif_enable;
1756                 if (change) {
1757                         if (spdif_enable) {
1758                                 codec->spdif_mask |= 0x01;
1759                                 snd_ali_enable_spdif_in(codec);
1760                         } else {
1761                                 codec->spdif_mask &= ~(0x01);
1762                                 snd_ali_disable_spdif_in(codec);
1763                         }
1764                 }
1765                 break;
1766         default:
1767                 break;
1768         }
1769         spin_unlock_irq(&codec->reg_lock);
1770
1771         return change;
1772 }
1773
1774 static const struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1775         /* spdif aplayback switch */
1776         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1777         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1778         /* spdif out to spdif channel */
1779         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1780         /* spdif in from spdif channel */
1781         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1782 };
1783
1784 static int snd_ali_mixer(struct snd_ali *codec)
1785 {
1786         struct snd_ac97_template ac97;
1787         unsigned int idx;
1788         int i, err;
1789         static const struct snd_ac97_bus_ops ops = {
1790                 .write = snd_ali_codec_write,
1791                 .read = snd_ali_codec_read,
1792         };
1793
1794         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1795         if (err < 0)
1796                 return err;
1797
1798         memset(&ac97, 0, sizeof(ac97));
1799         ac97.private_data = codec;
1800
1801         for (i = 0; i < codec->num_of_codecs; i++) {
1802                 ac97.num = i;
1803                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1804                 if (err < 0) {
1805                         dev_err(codec->card->dev,
1806                                    "ali mixer %d creating error.\n", i);
1807                         if (i == 0)
1808                                 return err;
1809                         codec->num_of_codecs = 1;
1810                         break;
1811                 }
1812         }
1813
1814         if (codec->spdif_support) {
1815                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1816                         err = snd_ctl_add(codec->card,
1817                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1818                         if (err < 0)
1819                                 return err;
1820                 }
1821         }
1822         return 0;
1823 }
1824
1825 static int ali_suspend(struct device *dev)
1826 {
1827         struct snd_card *card = dev_get_drvdata(dev);
1828         struct snd_ali *chip = card->private_data;
1829         struct snd_ali_image *im = &chip->image;
1830         int i, j;
1831
1832         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1833         for (i = 0; i < chip->num_of_codecs; i++)
1834                 snd_ac97_suspend(chip->ac97[i]);
1835
1836         spin_lock_irq(&chip->reg_lock);
1837
1838         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1839         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1840         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1841
1842         /* disable all IRQ bits */
1843         outl(0, ALI_REG(chip, ALI_MISCINT));
1844
1845         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1846                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1847                         continue;
1848                 im->regs[i] = inl(ALI_REG(chip, i*4));
1849         }
1850
1851         for (i = 0; i < ALI_CHANNELS; i++) {
1852                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1853                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1854                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1855         }
1856
1857         /* stop all HW channel */
1858         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1859
1860         spin_unlock_irq(&chip->reg_lock);
1861         return 0;
1862 }
1863
1864 static int ali_resume(struct device *dev)
1865 {
1866         struct snd_card *card = dev_get_drvdata(dev);
1867         struct snd_ali *chip = card->private_data;
1868         struct snd_ali_image *im = &chip->image;
1869         int i, j;
1870
1871         spin_lock_irq(&chip->reg_lock);
1872
1873         for (i = 0; i < ALI_CHANNELS; i++) {
1874                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1875                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1876                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1877         }
1878
1879         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1880                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1881                     (i*4 == ALI_START))
1882                         continue;
1883                 outl(im->regs[i], ALI_REG(chip, i*4));
1884         }
1885
1886         /* start HW channel */
1887         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1888         /* restore IRQ enable bits */
1889         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1890
1891         spin_unlock_irq(&chip->reg_lock);
1892
1893         for (i = 0 ; i < chip->num_of_codecs; i++)
1894                 snd_ac97_resume(chip->ac97[i]);
1895
1896         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1897         return 0;
1898 }
1899
1900 static DEFINE_SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1901
1902 static void snd_ali_free(struct snd_card *card)
1903 {
1904         struct snd_ali *codec = card->private_data;
1905
1906         if (codec->hw_initialized)
1907                 snd_ali_disable_address_interrupt(codec);
1908         pci_dev_put(codec->pci_m1533);
1909         pci_dev_put(codec->pci_m7101);
1910 }
1911
1912 static int snd_ali_chip_init(struct snd_ali *codec)
1913 {
1914         unsigned int legacy;
1915         unsigned char temp;
1916         struct pci_dev *pci_dev;
1917
1918         dev_dbg(codec->card->dev, "chip initializing ...\n");
1919
1920         if (snd_ali_reset_5451(codec)) {
1921                 dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1922                 return -1;
1923         }
1924
1925         if (codec->revision == ALI_5451_V02) {
1926                 pci_dev = codec->pci_m1533;
1927                 pci_read_config_byte(pci_dev, 0x59, &temp);
1928                 temp |= 0x80;
1929                 pci_write_config_byte(pci_dev, 0x59, temp);
1930
1931                 pci_dev = codec->pci_m7101;
1932                 pci_read_config_byte(pci_dev, 0xb8, &temp);
1933                 temp |= 0x20;
1934                 pci_write_config_byte(pci_dev, 0xB8, temp);
1935         }
1936
1937         pci_read_config_dword(codec->pci, 0x44, &legacy);
1938         legacy &= 0xff00ff00;
1939         legacy |= 0x000800aa;
1940         pci_write_config_dword(codec->pci, 0x44, legacy);
1941
1942         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
1943         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
1944         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
1945         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
1946         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
1947
1948         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
1949         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
1950                                                     AC97_EXTENDED_STATUS);
1951         if (codec->spdif_support) {
1952                 snd_ali_enable_spdif_out(codec);
1953                 codec->spdif_mask = 0x00000002;
1954         }
1955
1956         codec->num_of_codecs = 1;
1957
1958         /* secondary codec - modem */
1959         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
1960                 codec->num_of_codecs++;
1961                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
1962                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
1963                       ALI_SCTRL_LINE_OUT_EN),
1964                      ALI_REG(codec, ALI_SCTRL));
1965         }
1966
1967         dev_dbg(codec->card->dev, "chip initialize succeed.\n");
1968         return 0;
1969
1970 }
1971
1972 /* proc for register dump */
1973 static void snd_ali_proc_read(struct snd_info_entry *entry,
1974                               struct snd_info_buffer *buf)
1975 {
1976         struct snd_ali *codec = entry->private_data;
1977         int i;
1978         for (i = 0; i < 256 ; i+= 4)
1979                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
1980 }
1981
1982 static void snd_ali_proc_init(struct snd_ali *codec)
1983 {
1984         snd_card_ro_proc_new(codec->card, "ali5451", codec, snd_ali_proc_read);
1985 }
1986
1987 static int snd_ali_resources(struct snd_ali *codec)
1988 {
1989         int err;
1990
1991         dev_dbg(codec->card->dev, "resources allocation ...\n");
1992         err = pci_request_regions(codec->pci, "ALI 5451");
1993         if (err < 0)
1994                 return err;
1995         codec->port = pci_resource_start(codec->pci, 0);
1996
1997         if (devm_request_irq(&codec->pci->dev, codec->pci->irq,
1998                              snd_ali_card_interrupt,
1999                              IRQF_SHARED, KBUILD_MODNAME, codec)) {
2000                 dev_err(codec->card->dev, "Unable to request irq.\n");
2001                 return -EBUSY;
2002         }
2003         codec->irq = codec->pci->irq;
2004         codec->card->sync_irq = codec->irq;
2005         dev_dbg(codec->card->dev, "resources allocated.\n");
2006         return 0;
2007 }
2008
2009 static int snd_ali_create(struct snd_card *card,
2010                           struct pci_dev *pci,
2011                           int pcm_streams,
2012                           int spdif_support)
2013 {
2014         struct snd_ali *codec = card->private_data;
2015         int i, err;
2016         unsigned short cmdw;
2017
2018         dev_dbg(card->dev, "creating ...\n");
2019
2020         /* enable PCI device */
2021         err = pcim_enable_device(pci);
2022         if (err < 0)
2023                 return err;
2024         /* check, if we can restrict PCI DMA transfers to 31 bits */
2025         if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31))) {
2026                 dev_err(card->dev,
2027                         "architecture does not support 31bit PCI busmaster DMA\n");
2028                 return -ENXIO;
2029         }
2030
2031         spin_lock_init(&codec->reg_lock);
2032         spin_lock_init(&codec->voice_alloc);
2033
2034         codec->card = card;
2035         codec->pci = pci;
2036         codec->irq = -1;
2037         codec->revision = pci->revision;
2038         codec->spdif_support = spdif_support;
2039
2040         if (pcm_streams < 1)
2041                 pcm_streams = 1;
2042         if (pcm_streams > 32)
2043                 pcm_streams = 32;
2044
2045         pci_set_master(pci);
2046         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2047         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2048                 cmdw |= PCI_COMMAND_IO;
2049                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2050         }
2051
2052         if (snd_ali_resources(codec))
2053                 return -EBUSY;
2054         card->private_free = snd_ali_free;
2055
2056         codec->synth.chmap = 0;
2057         codec->synth.chcnt = 0;
2058         codec->spdif_mask = 0;
2059         codec->synth.synthcount = 0;
2060
2061         if (codec->revision == ALI_5451_V02)
2062                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2063         else
2064                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2065         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2066
2067         codec->chregs.regs.start  = ALI_START;
2068         codec->chregs.regs.stop   = ALI_STOP;
2069         codec->chregs.regs.aint   = ALI_AINT;
2070         codec->chregs.regs.ainten = ALI_AINTEN;
2071
2072         codec->chregs.data.start  = 0x00;
2073         codec->chregs.data.stop   = 0x00;
2074         codec->chregs.data.aint   = 0x00;
2075         codec->chregs.data.ainten = 0x00;
2076
2077         /* M1533: southbridge */
2078         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2079         if (!codec->pci_m1533) {
2080                 dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2081                 return -ENODEV;
2082         }
2083         /* M7101: power management */
2084         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2085         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2086                 dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2087                 return -ENODEV;
2088         }
2089
2090         /* initialise synth voices*/
2091         for (i = 0; i < ALI_CHANNELS; i++)
2092                 codec->synth.voices[i].number = i;
2093
2094         err = snd_ali_chip_init(codec);
2095         if (err < 0) {
2096                 dev_err(card->dev, "ali create: chip init error.\n");
2097                 return err;
2098         }
2099
2100         snd_ali_enable_address_interrupt(codec);
2101         codec->hw_initialized = 1;
2102         return 0;
2103 }
2104
2105 static int __snd_ali_probe(struct pci_dev *pci,
2106                            const struct pci_device_id *pci_id)
2107 {
2108         struct snd_card *card;
2109         struct snd_ali *codec;
2110         int err;
2111
2112         dev_dbg(&pci->dev, "probe ...\n");
2113
2114         err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE,
2115                                 sizeof(*codec), &card);
2116         if (err < 0)
2117                 return err;
2118         codec = card->private_data;
2119
2120         err = snd_ali_create(card, pci, pcm_channels, spdif);
2121         if (err < 0)
2122                 return err;
2123
2124         dev_dbg(&pci->dev, "mixer building ...\n");
2125         err = snd_ali_mixer(codec);
2126         if (err < 0)
2127                 return err;
2128
2129         dev_dbg(&pci->dev, "pcm building ...\n");
2130         err = snd_ali_build_pcms(codec);
2131         if (err < 0)
2132                 return err;
2133
2134         snd_ali_proc_init(codec);
2135
2136         strcpy(card->driver, "ALI5451");
2137         strcpy(card->shortname, "ALI 5451");
2138
2139         sprintf(card->longname, "%s at 0x%lx, irq %i",
2140                 card->shortname, codec->port, codec->irq);
2141
2142         dev_dbg(&pci->dev, "register card.\n");
2143         err = snd_card_register(card);
2144         if (err < 0)
2145                 return err;
2146
2147         pci_set_drvdata(pci, card);
2148         return 0;
2149 }
2150
2151 static int snd_ali_probe(struct pci_dev *pci,
2152                          const struct pci_device_id *pci_id)
2153 {
2154         return snd_card_free_on_error(&pci->dev, __snd_ali_probe(pci, pci_id));
2155 }
2156
2157 static struct pci_driver ali5451_driver = {
2158         .name = KBUILD_MODNAME,
2159         .id_table = snd_ali_ids,
2160         .probe = snd_ali_probe,
2161         .driver = {
2162                 .pm = &ali_pm,
2163         },
2164 };
2165
2166 module_pci_driver(ali5451_driver);