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 #ifdef CONFIG_PM_SLEEP
 247         struct snd_ali_image *image;
 248 #endif
 249 };
 250
 251 static const struct pci_device_id snd_ali_ids[] = {
 252         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 253         {0, }
 254 };
 255 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 256
 257 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 258 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 259 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 260                                unsigned short);
 261
 262 /*
 263  *  AC97 ACCESS
 264  */
 265
 266 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 267                                              unsigned int port)
 268 {
 269         return (unsigned int)inl(ALI_REG(codec, port));
 270 }
 271
 272 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 273                                      unsigned int port,
 274                                      unsigned int val)
 275 {
 276         outl((unsigned int)val, ALI_REG(codec, port));
 277 }
 278
 279 static int snd_ali_codec_ready(struct snd_ali *codec,
 280                                unsigned int port)
 281 {
 282         unsigned long end_time;
 283         unsigned int res;
 284
 285         end_time = jiffies + msecs_to_jiffies(250);
 286
 287         for (;;) {
 288                 res = snd_ali_5451_peek(codec,port);
 289                 if (!(res & 0x8000))
 290                         return 0;
 291                 if (!time_after_eq(end_time, jiffies))
 292                         break;
 293                 schedule_timeout_uninterruptible(1);
 294         }
 295
 296         snd_ali_5451_poke(codec, port, res & ~0x8000);
 297         dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n ");
 298         return -EIO;
 299 }
 300
 301 static int snd_ali_stimer_ready(struct snd_ali *codec)
 302 {
 303         unsigned long end_time;
 304         unsigned long dwChk1,dwChk2;
 305
 306         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 307         end_time = jiffies + msecs_to_jiffies(250);
 308
 309         for (;;) {
 310                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 311                 if (dwChk2 != dwChk1)
 312                         return 0;
 313                 if (!time_after_eq(end_time, jiffies))
 314                         break;
 315                 schedule_timeout_uninterruptible(1);
 316         }
 317
 318         dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
 319         return -EIO;
 320 }
 321
 322 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 323                                unsigned short reg,
 324                                unsigned short val)
 325 {
 326         unsigned int dwVal;
 327         unsigned int port;
 328
 329         if (reg >= 0x80) {
 330                 dev_err(codec->card->dev,
 331                         "ali_codec_poke: reg(%xh) invalid.\n", reg);
 332                 return;
 333         }
 334
 335         port = codec->chregs.regs.ac97write;
 336
 337         if (snd_ali_codec_ready(codec, port) < 0)
 338                 return;
 339         if (snd_ali_stimer_ready(codec) < 0)
 340                 return;
 341
 342         dwVal  = (unsigned int) (reg & 0xff);
 343         dwVal |= 0x8000 | (val << 16);
 344         if (secondary)
 345                 dwVal |= 0x0080;
 346         if (codec->revision == ALI_5451_V02)
 347                 dwVal |= 0x0100;
 348
 349         snd_ali_5451_poke(codec, port, dwVal);
 350
 351         return ;
 352 }
 353
 354 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 355                                          int secondary,
 356                                          unsigned short reg)
 357 {
 358         unsigned int dwVal;
 359         unsigned int port;
 360
 361         if (reg >= 0x80) {
 362                 dev_err(codec->card->dev,
 363                         "ali_codec_peek: reg(%xh) invalid.\n", reg);
 364                 return ~0;
 365         }
 366
 367         port = codec->chregs.regs.ac97read;
 368
 369         if (snd_ali_codec_ready(codec, port) < 0)
 370                 return ~0;
 371         if (snd_ali_stimer_ready(codec) < 0)
 372                 return ~0;
 373
 374         dwVal  = (unsigned int) (reg & 0xff);
 375         dwVal |= 0x8000;                                /* bit 15*/
 376         if (secondary)
 377                 dwVal |= 0x0080;
 378
 379         snd_ali_5451_poke(codec, port, dwVal);
 380
 381         if (snd_ali_stimer_ready(codec) < 0)
 382                 return ~0;
 383         if (snd_ali_codec_ready(codec, port) < 0)
 384                 return ~0;
 385
 386         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 387 }
 388
 389 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 390                                 unsigned short reg,
 391                                 unsigned short val )
 392 {
 393         struct snd_ali *codec = ac97->private_data;
 394
 395         dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
 396         if (reg == AC97_GPIO_STATUS) {
 397                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 398                      ALI_REG(codec, ALI_AC97_GPIO));
 399                 return;
 400         }
 401         snd_ali_codec_poke(codec, ac97->num, reg, val);
 402         return ;
 403 }
 404
 405
 406 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 407                                          unsigned short reg)
 408 {
 409         struct snd_ali *codec = ac97->private_data;
 410
 411         dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
 412         return snd_ali_codec_peek(codec, ac97->num, reg);
 413 }
 414
 415 /*
 416  *      AC97 Reset
 417  */
 418
 419 static int snd_ali_reset_5451(struct snd_ali *codec)
 420 {
 421         struct pci_dev *pci_dev;
 422         unsigned short wCount, wReg;
 423         unsigned int   dwVal;
 424
 425         pci_dev = codec->pci_m1533;
 426         if (pci_dev) {
 427                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 428                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 429                 mdelay(5);
 430                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 431                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 432                 mdelay(5);
 433         }
 434
 435         pci_dev = codec->pci;
 436         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 437         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 438         udelay(500);
 439         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 440         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 441         mdelay(5);
 442
 443         wCount = 200;
 444         while(wCount--) {
 445                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 446                 if ((wReg & 0x000f) == 0x000f)
 447                         return 0;
 448                 mdelay(5);
 449         }
 450
 451         /* non-fatal if you have a non PM capable codec */
 452         /* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
 453         return 0;
 454 }
 455
 456 /*
 457  *  ALI 5451 Controller
 458  */
 459
 460 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 461                                            unsigned int channel)
 462 {
 463         unsigned long dwVal;
 464
 465         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 466         dwVal |= 1 << (channel & 0x0000001f);
 467         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 468 }
 469
 470 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 471                                             unsigned int channel)
 472 {
 473         unsigned long dwVal;
 474
 475         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 476         dwVal &= ~(1 << (channel & 0x0000001f));
 477         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 478 }
 479
 480 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 481 {
 482         unsigned int gc;
 483
 484         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 485         gc |= ENDLP_IE;
 486         gc |= MIDLP_IE;
 487         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 488 }
 489
 490 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 491 {
 492         unsigned int gc;
 493
 494         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 495         gc &= ~ENDLP_IE;
 496         gc &= ~MIDLP_IE;
 497         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 498 }
 499
 500 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 501                                       unsigned int channel)
 502 {
 503         unsigned int mask;
 504         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 505
 506         dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
 507
 508         mask = 1 << (channel & 0x1f);
 509         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 510         pchregs->data.ainten &= ~mask;
 511         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 512 }
 513
 514 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 515 {
 516         unsigned int idx =  channel & 0x1f;
 517
 518         if (codec->synth.chcnt >= ALI_CHANNELS){
 519                 dev_err(codec->card->dev,
 520                            "ali_alloc_pcm_channel: no free channels.\n");
 521                 return -1;
 522         }
 523
 524         if (!(codec->synth.chmap & (1 << idx))) {
 525                 codec->synth.chmap |= 1 << idx;
 526                 codec->synth.chcnt++;
 527                 dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
 528                 return idx;
 529         }
 530         return -1;
 531 }
 532
 533 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 534 {
 535         int idx;
 536         int result = -1;
 537
 538         dev_dbg(codec->card->dev,
 539                 "find_free_channel: for %s\n", rec ? "rec" : "pcm");
 540
 541         /* recording */
 542         if (rec) {
 543                 if (codec->spdif_support &&
 544                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 545                      ALI_SPDIF_IN_SUPPORT))
 546                         idx = ALI_SPDIF_IN_CHANNEL;
 547                 else
 548                         idx = ALI_PCM_IN_CHANNEL;
 549
 550                 result = snd_ali_alloc_pcm_channel(codec, idx);
 551                 if (result >= 0)
 552                         return result;
 553                 else {
 554                         dev_err(codec->card->dev,
 555                                 "ali_find_free_channel: record channel is busy now.\n");
 556                         return -1;
 557                 }
 558         }
 559
 560         /* playback... */
 561         if (codec->spdif_support &&
 562             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 563              ALI_SPDIF_OUT_CH_ENABLE)) {
 564                 idx = ALI_SPDIF_OUT_CHANNEL;
 565                 result = snd_ali_alloc_pcm_channel(codec, idx);
 566                 if (result >= 0)
 567                         return result;
 568                 else
 569                         dev_err(codec->card->dev,
 570                                 "ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 571         }
 572
 573         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 574                 result = snd_ali_alloc_pcm_channel(codec, idx);
 575                 if (result >= 0)
 576                         return result;
 577         }
 578         dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
 579         return -1;
 580 }
 581
 582 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 583 {
 584         unsigned int idx = channel & 0x0000001f;
 585
 586         dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
 587
 588         if (channel < 0 || channel >= ALI_CHANNELS)
 589                 return;
 590
 591         if (!(codec->synth.chmap & (1 << idx))) {
 592                 dev_err(codec->card->dev,
 593                         "ali_free_channel_pcm: channel %d is not in use.\n",
 594                         channel);
 595                 return;
 596         } else {
 597                 codec->synth.chmap &= ~(1 << idx);
 598                 codec->synth.chcnt--;
 599         }
 600 }
 601
 602 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 603 {
 604         unsigned int mask = 1 << (channel & 0x1f);
 605
 606         dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
 607         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 608 }
 609
 610 /*
 611  *    S/PDIF Part
 612  */
 613
 614 static void snd_ali_delay(struct snd_ali *codec,int interval)
 615 {
 616         unsigned long  begintimer,currenttimer;
 617
 618         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 619         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 620
 621         while (currenttimer < begintimer + interval) {
 622                 if (snd_ali_stimer_ready(codec) < 0)
 623                         break;
 624                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 625                 cpu_relax();
 626         }
 627 }
 628
 629 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 630 {
 631         u16 wval;
 632         u16 count = 0;
 633         u8  bval, R1 = 0, R2;
 634
 635         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 636         bval |= 0x1F;
 637         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 638
 639         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 640                 count ++;
 641                 snd_ali_delay(codec, 6);
 642                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 643                 R1 = bval & 0x1F;
 644         }
 645
 646         if (count > 50000) {
 647                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 648                 return;
 649         }
 650
 651         for (count = 0; count <= 50000; count++) {
 652                 snd_ali_delay(codec, 6);
 653                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 654                 R2 = bval & 0x1F;
 655                 if (R2 != R1)
 656                         R1 = R2;
 657                 else
 658                         break;
 659         }
 660
 661         if (count > 50000) {
 662                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 663                 return;
 664         }
 665
 666         if (R2 >= 0x0b && R2 <= 0x0e) {
 667                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 668                 wval &= 0xe0f0;
 669                 wval |= (0x09 << 8) | 0x05;
 670                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 671
 672                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 673                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 674         } else if (R2 == 0x12) {
 675                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 676                 wval &= 0xe0f0;
 677                 wval |= (0x0e << 8) | 0x08;
 678                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 679
 680                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 681                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 682         }
 683 }
 684
 685 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 686 {
 687         u32     dwRate;
 688         u8      bval;
 689
 690         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 691         bval &= 0x7f;
 692         bval |= 0x40;
 693         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 694
 695         snd_ali_detect_spdif_rate(codec);
 696
 697         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 698         bval &= 0x0f;
 699
 700         switch (bval) {
 701         case 0: dwRate = 44100; break;
 702         case 1: dwRate = 48000; break;
 703         case 2: dwRate = 32000; break;
 704         default: dwRate = 0; break;
 705         }
 706
 707         return dwRate;
 708 }
 709
 710 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 711 {
 712         unsigned int dwVal;
 713
 714         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 715         dwVal |= ALI_SPDIF_IN_SUPPORT;
 716         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 717
 718         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 719         dwVal |= 0x02;
 720         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 721
 722         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 723 }
 724
 725 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 726 {
 727         unsigned int dwVal;
 728
 729         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 730         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 731         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 732
 733         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 734 }
 735
 736
 737 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 738 {
 739         unsigned char  bVal;
 740         unsigned int  dwRate;
 741
 742         switch (rate) {
 743         case 32000: dwRate = 0x300; break;
 744         case 48000: dwRate = 0x200; break;
 745         default: dwRate = 0; break;
 746         }
 747
 748         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 749         bVal &= (unsigned char)(~(1<<6));
 750
 751         bVal |= 0x80;           /* select right */
 752         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 753         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 754
 755         bVal &= ~0x80;  /* select left */
 756         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 757         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 758 }
 759
 760 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 761 {
 762         unsigned short wVal;
 763         unsigned char bVal;
 764         struct pci_dev *pci_dev;
 765
 766         pci_dev = codec->pci_m1533;
 767         if (pci_dev == NULL)
 768                 return;
 769         pci_read_config_byte(pci_dev, 0x61, &bVal);
 770         bVal |= 0x40;
 771         pci_write_config_byte(pci_dev, 0x61, bVal);
 772         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 773         bVal |= 0x01;
 774         pci_write_config_byte(pci_dev, 0x7d, bVal);
 775
 776         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 777         bVal &= (~0x20);
 778         bVal |= 0x10;
 779         pci_write_config_byte(pci_dev, 0x7e, bVal);
 780
 781         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 782         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 783
 784         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 785         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 786
 787         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 788         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 789         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 790         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 791 }
 792
 793 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 794 {
 795         unsigned short wVal;
 796
 797         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 798         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 799         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 800 /*
 801         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 802         if (flag & ALI_SPDIF_OUT_NON_PCM)
 803                 wVal |= 0x0002;
 804         else
 805                 wVal &= (~0x0002);
 806         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 807 */
 808         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 809 }
 810
 811 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 812 {
 813         unsigned short wVal;
 814
 815         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 816         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 817         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 818
 819         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 820 }
 821
 822 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 823 {
 824         unsigned char  bVal;
 825
 826         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 827         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 828
 829         snd_ali_disable_spdif_chnout(codec);
 830 }
 831
 832 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 833 {
 834         struct snd_ali_voice *pvoice;
 835         struct snd_ali_channel_control *pchregs;
 836         unsigned int old, mask;
 837
 838         pchregs = &(codec->chregs);
 839
 840         /* check if interrupt occurred for channel */
 841         old  = pchregs->data.aint;
 842         mask = 1U << (channel & 0x1f);
 843
 844         if (!(old & mask))
 845                 return;
 846
 847         pvoice = &codec->synth.voices[channel];
 848
 849         udelay(100);
 850         spin_lock(&codec->reg_lock);
 851
 852         if (pvoice->pcm && pvoice->substream) {
 853                 /* pcm interrupt */
 854                 if (pvoice->running) {
 855                         dev_dbg(codec->card->dev,
 856                                 "update_ptr: cso=%4.4x cspf=%d.\n",
 857                                 inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
 858                                 (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
 859                         spin_unlock(&codec->reg_lock);
 860                         snd_pcm_period_elapsed(pvoice->substream);
 861                         spin_lock(&codec->reg_lock);
 862                 } else {
 863                         snd_ali_stop_voice(codec, channel);
 864                         snd_ali_disable_voice_irq(codec, channel);
 865                 }
 866         } else if (codec->synth.voices[channel].synth) {
 867                 /* synth interrupt */
 868         } else if (codec->synth.voices[channel].midi) {
 869                 /* midi interrupt */
 870         } else {
 871                 /* unknown interrupt */
 872                 snd_ali_stop_voice(codec, channel);
 873                 snd_ali_disable_voice_irq(codec, channel);
 874         }
 875         spin_unlock(&codec->reg_lock);
 876         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 877         pchregs->data.aint = old & (~mask);
 878 }
 879
 880 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 881 {
 882         struct snd_ali  *codec = dev_id;
 883         int channel;
 884         unsigned int audio_int;
 885         struct snd_ali_channel_control *pchregs;
 886
 887         if (codec == NULL || !codec->hw_initialized)
 888                 return IRQ_NONE;
 889
 890         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 891         if (!audio_int)
 892                 return IRQ_NONE;
 893
 894         pchregs = &(codec->chregs);
 895         if (audio_int & ADDRESS_IRQ) {
 896                 /* get interrupt status for all channels */
 897                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 898                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 899                         snd_ali_update_ptr(codec, channel);
 900         }
 901         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 902                 ALI_REG(codec, ALI_MISCINT));
 903
 904         return IRQ_HANDLED;
 905 }
 906
 907
 908 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 909                                                  int type, int rec, int channel)
 910 {
 911         struct snd_ali_voice *pvoice;
 912         int idx;
 913
 914         dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
 915
 916         spin_lock_irq(&codec->voice_alloc);
 917         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 918                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 919                         snd_ali_find_free_channel(codec,rec);
 920                 if (idx < 0) {
 921                         dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
 922                         spin_unlock_irq(&codec->voice_alloc);
 923                         return NULL;
 924                 }
 925                 pvoice = &(codec->synth.voices[idx]);
 926                 pvoice->codec = codec;
 927                 pvoice->use = 1;
 928                 pvoice->pcm = 1;
 929                 pvoice->mode = rec;
 930                 spin_unlock_irq(&codec->voice_alloc);
 931                 return pvoice;
 932         }
 933         spin_unlock_irq(&codec->voice_alloc);
 934         return NULL;
 935 }
 936
 937
 938 static void snd_ali_free_voice(struct snd_ali * codec,
 939                                struct snd_ali_voice *pvoice)
 940 {
 941         void (*private_free)(void *);
 942         void *private_data;
 943
 944         dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
 945         if (!pvoice->use)
 946                 return;
 947         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 948         spin_lock_irq(&codec->voice_alloc);
 949         private_free = pvoice->private_free;
 950         private_data = pvoice->private_data;
 951         pvoice->private_free = NULL;
 952         pvoice->private_data = NULL;
 953         if (pvoice->pcm)
 954                 snd_ali_free_channel_pcm(codec, pvoice->number);
 955         pvoice->use = pvoice->pcm = pvoice->synth = 0;
 956         pvoice->substream = NULL;
 957         spin_unlock_irq(&codec->voice_alloc);
 958         if (private_free)
 959                 private_free(private_data);
 960 }
 961
 962
 963 static void snd_ali_clear_voices(struct snd_ali *codec,
 964                                  unsigned int v_min,
 965                                  unsigned int v_max)
 966 {
 967         unsigned int i;
 968
 969         for (i = v_min; i <= v_max; i++) {
 970                 snd_ali_stop_voice(codec, i);
 971                 snd_ali_disable_voice_irq(codec, i);
 972         }
 973 }
 974
 975 static void snd_ali_write_voice_regs(struct snd_ali *codec,
 976                          unsigned int Channel,
 977                          unsigned int LBA,
 978                          unsigned int CSO,
 979                          unsigned int ESO,
 980                          unsigned int DELTA,
 981                          unsigned int ALPHA_FMS,
 982                          unsigned int GVSEL,
 983                          unsigned int PAN,
 984                          unsigned int VOL,
 985                          unsigned int CTRL,
 986                          unsigned int EC)
 987 {
 988         unsigned int ctlcmds[4];
 989
 990         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
 991
 992         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
 993         ctlcmds[1] =  LBA;
 994         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
 995         ctlcmds[3] =  (GVSEL << 31) |
 996                       ((PAN & 0x0000007f) << 24) |
 997                       ((VOL & 0x000000ff) << 16) |
 998                       ((CTRL & 0x0000000f) << 12) |
 999                       (EC & 0x00000fff);
1000
1001         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1002
1003         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1004         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1005         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1006         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1007
1008         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1009         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1010 }
1011
1012 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1013 {
1014         unsigned int delta;
1015
1016         if (rate < 4000)
1017                 rate = 4000;
1018         if (rate > 48000)
1019                 rate = 48000;
1020
1021         if (rec) {
1022                 if (rate == 44100)
1023                         delta = 0x116a;
1024                 else if (rate == 8000)
1025                         delta = 0x6000;
1026                 else if (rate == 48000)
1027                         delta = 0x1000;
1028                 else
1029                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1030         } else {
1031                 if (rate == 44100)
1032                         delta = 0xeb3;
1033                 else if (rate == 8000)
1034                         delta = 0x2ab;
1035                 else if (rate == 48000)
1036                         delta = 0x1000;
1037                 else
1038                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1039         }
1040
1041         return delta;
1042 }
1043
1044 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1045 {
1046         unsigned int CTRL;
1047         struct snd_pcm_runtime *runtime = substream->runtime;
1048
1049         /* set ctrl mode
1050            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1051          */
1052         CTRL = 0x00000001;
1053         if (snd_pcm_format_width(runtime->format) == 16)
1054                 CTRL |= 0x00000008;     /* 16-bit data */
1055         if (!snd_pcm_format_unsigned(runtime->format))
1056                 CTRL |= 0x00000002;     /* signed data */
1057         if (runtime->channels > 1)
1058                 CTRL |= 0x00000004;     /* stereo data */
1059         return CTRL;
1060 }
1061
1062 /*
1063  *  PCM part
1064  */
1065
1066 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1067                                int cmd)
1068
1069 {
1070         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1071         struct snd_pcm_substream *s;
1072         unsigned int what, whati;
1073         struct snd_ali_voice *pvoice, *evoice;
1074         unsigned int val;
1075         int do_start;
1076
1077         switch (cmd) {
1078         case SNDRV_PCM_TRIGGER_START:
1079         case SNDRV_PCM_TRIGGER_RESUME:
1080                 do_start = 1;
1081                 break;
1082         case SNDRV_PCM_TRIGGER_STOP:
1083         case SNDRV_PCM_TRIGGER_SUSPEND:
1084                 do_start = 0;
1085                 break;
1086         default:
1087                 return -EINVAL;
1088         }
1089
1090         what = whati = 0;
1091         snd_pcm_group_for_each_entry(s, substream) {
1092                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1093                         pvoice = s->runtime->private_data;
1094                         evoice = pvoice->extra;
1095                         what |= 1 << (pvoice->number & 0x1f);
1096                         if (evoice == NULL)
1097                                 whati |= 1 << (pvoice->number & 0x1f);
1098                         else {
1099                                 whati |= 1 << (evoice->number & 0x1f);
1100                                 what |= 1 << (evoice->number & 0x1f);
1101                         }
1102                         if (do_start) {
1103                                 pvoice->running = 1;
1104                                 if (evoice != NULL)
1105                                         evoice->running = 1;
1106                         } else {
1107                                 pvoice->running = 0;
1108                                 if (evoice != NULL)
1109                                         evoice->running = 0;
1110                         }
1111                         snd_pcm_trigger_done(s, substream);
1112                 }
1113         }
1114         spin_lock(&codec->reg_lock);
1115         if (!do_start)
1116                 outl(what, ALI_REG(codec, ALI_STOP));
1117         val = inl(ALI_REG(codec, ALI_AINTEN));
1118         if (do_start)
1119                 val |= whati;
1120         else
1121                 val &= ~whati;
1122         outl(val, ALI_REG(codec, ALI_AINTEN));
1123         if (do_start)
1124                 outl(what, ALI_REG(codec, ALI_START));
1125         dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1126         spin_unlock(&codec->reg_lock);
1127
1128         return 0;
1129 }
1130
1131 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1132                                       struct snd_pcm_hw_params *hw_params)
1133 {
1134         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1135         struct snd_pcm_runtime *runtime = substream->runtime;
1136         struct snd_ali_voice *pvoice = runtime->private_data;
1137         struct snd_ali_voice *evoice = pvoice->extra;
1138
1139         /* voice management */
1140
1141         if (params_buffer_size(hw_params) / 2 !=
1142             params_period_size(hw_params)) {
1143                 if (!evoice) {
1144                         evoice = snd_ali_alloc_voice(codec,
1145                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1146                                                      0, -1);
1147                         if (!evoice)
1148                                 return -ENOMEM;
1149                         pvoice->extra = evoice;
1150                         evoice->substream = substream;
1151                 }
1152         } else {
1153                 if (evoice) {
1154                         snd_ali_free_voice(codec, evoice);
1155                         pvoice->extra = evoice = NULL;
1156                 }
1157         }
1158
1159         return 0;
1160 }
1161
1162 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1163 {
1164         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1165         struct snd_pcm_runtime *runtime = substream->runtime;
1166         struct snd_ali_voice *pvoice = runtime->private_data;
1167         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1168
1169         if (evoice) {
1170                 snd_ali_free_voice(codec, evoice);
1171                 pvoice->extra = NULL;
1172         }
1173         return 0;
1174 }
1175
1176 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1177 {
1178         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1179         struct snd_pcm_runtime *runtime = substream->runtime;
1180         struct snd_ali_voice *pvoice = runtime->private_data;
1181         struct snd_ali_voice *evoice = pvoice->extra;
1182
1183         unsigned int LBA;
1184         unsigned int Delta;
1185         unsigned int ESO;
1186         unsigned int CTRL;
1187         unsigned int GVSEL;
1188         unsigned int PAN;
1189         unsigned int VOL;
1190         unsigned int EC;
1191
1192         dev_dbg(codec->card->dev, "playback_prepare ...\n");
1193
1194         spin_lock_irq(&codec->reg_lock);
1195
1196         /* set Delta (rate) value */
1197         Delta = snd_ali_convert_rate(runtime->rate, 0);
1198
1199         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1200             pvoice->number == ALI_PCM_IN_CHANNEL)
1201                 snd_ali_disable_special_channel(codec, pvoice->number);
1202         else if (codec->spdif_support &&
1203                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1204                   ALI_SPDIF_OUT_CH_ENABLE)
1205                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1206                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1207                 Delta = 0x1000;
1208         }
1209
1210         /* set Loop Back Address */
1211         LBA = runtime->dma_addr;
1212
1213         /* set interrupt count size */
1214         pvoice->count = runtime->period_size;
1215
1216         /* set target ESO for channel */
1217         pvoice->eso = runtime->buffer_size;
1218
1219         dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1220                        pvoice->eso, pvoice->count);
1221
1222         /* set ESO to capture first MIDLP interrupt */
1223         ESO = pvoice->eso -1;
1224         /* set ctrl mode */
1225         CTRL = snd_ali_control_mode(substream);
1226
1227         GVSEL = 1;
1228         PAN = 0;
1229         VOL = 0;
1230         EC = 0;
1231         dev_dbg(codec->card->dev, "playback_prepare:\n");
1232         dev_dbg(codec->card->dev,
1233                 "ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1234                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1235         snd_ali_write_voice_regs(codec,
1236                                  pvoice->number,
1237                                  LBA,
1238                                  0,     /* cso */
1239                                  ESO,
1240                                  Delta,
1241                                  0,     /* alpha */
1242                                  GVSEL,
1243                                  PAN,
1244                                  VOL,
1245                                  CTRL,
1246                                  EC);
1247         if (evoice) {
1248                 evoice->count = pvoice->count;
1249                 evoice->eso = pvoice->count << 1;
1250                 ESO = evoice->eso - 1;
1251                 snd_ali_write_voice_regs(codec,
1252                                          evoice->number,
1253                                          LBA,
1254                                          0,     /* cso */
1255                                          ESO,
1256                                          Delta,
1257                                          0,     /* alpha */
1258                                          GVSEL,
1259                                          0x7f,
1260                                          0x3ff,
1261                                          CTRL,
1262                                          EC);
1263         }
1264         spin_unlock_irq(&codec->reg_lock);
1265         return 0;
1266 }
1267
1268
1269 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1270 {
1271         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1272         struct snd_pcm_runtime *runtime = substream->runtime;
1273         struct snd_ali_voice *pvoice = runtime->private_data;
1274         unsigned int LBA;
1275         unsigned int Delta;
1276         unsigned int ESO;
1277         unsigned int CTRL;
1278         unsigned int GVSEL;
1279         unsigned int PAN;
1280         unsigned int VOL;
1281         unsigned int EC;
1282         u8       bValue;
1283
1284         spin_lock_irq(&codec->reg_lock);
1285
1286         dev_dbg(codec->card->dev, "ali_prepare...\n");
1287
1288         snd_ali_enable_special_channel(codec,pvoice->number);
1289
1290         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1291                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1292                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1293
1294         /* Prepare capture intr channel */
1295         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1296
1297                 unsigned int rate;
1298
1299                 spin_unlock_irq(&codec->reg_lock);
1300                 if (codec->revision != ALI_5451_V02)
1301                         return -1;
1302
1303                 rate = snd_ali_get_spdif_in_rate(codec);
1304                 if (rate == 0) {
1305                         dev_warn(codec->card->dev,
1306                                  "ali_capture_prepare: spdif rate detect err!\n");
1307                         rate = 48000;
1308                 }
1309                 spin_lock_irq(&codec->reg_lock);
1310                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1311                 if (bValue & 0x10) {
1312                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1313                         dev_warn(codec->card->dev,
1314                                  "clear SPDIF parity error flag.\n");
1315                 }
1316
1317                 if (rate != 48000)
1318                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1319         }
1320
1321         /* set target ESO for channel  */
1322         pvoice->eso = runtime->buffer_size;
1323
1324         /* set interrupt count size  */
1325         pvoice->count = runtime->period_size;
1326
1327         /* set Loop Back Address  */
1328         LBA = runtime->dma_addr;
1329
1330         /* set ESO to capture first MIDLP interrupt  */
1331         ESO = pvoice->eso - 1;
1332         CTRL = snd_ali_control_mode(substream);
1333         GVSEL = 0;
1334         PAN = 0x00;
1335         VOL = 0x00;
1336         EC = 0;
1337
1338         snd_ali_write_voice_regs(    codec,
1339                                      pvoice->number,
1340                                      LBA,
1341                                      0, /* cso */
1342                                      ESO,
1343                                      Delta,
1344                                      0, /* alpha */
1345                                      GVSEL,
1346                                      PAN,
1347                                      VOL,
1348                                      CTRL,
1349                                      EC);
1350
1351         spin_unlock_irq(&codec->reg_lock);
1352
1353         return 0;
1354 }
1355
1356
1357 static snd_pcm_uframes_t
1358 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1359 {
1360         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1361         struct snd_pcm_runtime *runtime = substream->runtime;
1362         struct snd_ali_voice *pvoice = runtime->private_data;
1363         unsigned int cso;
1364
1365         spin_lock(&codec->reg_lock);
1366         if (!pvoice->running) {
1367                 spin_unlock(&codec->reg_lock);
1368                 return 0;
1369         }
1370         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1371         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1372         spin_unlock(&codec->reg_lock);
1373         dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1374
1375         cso %= runtime->buffer_size;
1376         return cso;
1377 }
1378
1379
1380 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1381 {
1382         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1383         struct snd_pcm_runtime *runtime = substream->runtime;
1384         struct snd_ali_voice *pvoice = runtime->private_data;
1385         unsigned int cso;
1386
1387         spin_lock(&codec->reg_lock);
1388         if (!pvoice->running) {
1389                 spin_unlock(&codec->reg_lock);
1390                 return 0;
1391         }
1392         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1393         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1394         spin_unlock(&codec->reg_lock);
1395
1396         cso %= runtime->buffer_size;
1397         return cso;
1398 }
1399
1400 static const struct snd_pcm_hardware snd_ali_playback =
1401 {
1402         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1403                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1404                          SNDRV_PCM_INFO_MMAP_VALID |
1405                          SNDRV_PCM_INFO_RESUME |
1406                          SNDRV_PCM_INFO_SYNC_START),
1407         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1408                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1409         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1410         .rate_min =             4000,
1411         .rate_max =             48000,
1412         .channels_min =         1,
1413         .channels_max =         2,
1414         .buffer_bytes_max =     (256*1024),
1415         .period_bytes_min =     64,
1416         .period_bytes_max =     (256*1024),
1417         .periods_min =          1,
1418         .periods_max =          1024,
1419         .fifo_size =            0,
1420 };
1421
1422 /*
1423  *  Capture support device description
1424  */
1425
1426 static const struct snd_pcm_hardware snd_ali_capture =
1427 {
1428         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1429                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1430                          SNDRV_PCM_INFO_MMAP_VALID |
1431                          SNDRV_PCM_INFO_RESUME |
1432                          SNDRV_PCM_INFO_SYNC_START),
1433         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1434                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1435         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1436         .rate_min =             4000,
1437         .rate_max =             48000,
1438         .channels_min =         1,
1439         .channels_max =         2,
1440         .buffer_bytes_max =     (128*1024),
1441         .period_bytes_min =     64,
1442         .period_bytes_max =     (128*1024),
1443         .periods_min =          1,
1444         .periods_max =          1024,
1445         .fifo_size =            0,
1446 };
1447
1448 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1449 {
1450         struct snd_ali_voice *pvoice = runtime->private_data;
1451
1452         if (pvoice)
1453                 snd_ali_free_voice(pvoice->codec, pvoice);
1454 }
1455
1456 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1457                         int channel, const struct snd_pcm_hardware *phw)
1458 {
1459         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1460         struct snd_pcm_runtime *runtime = substream->runtime;
1461         struct snd_ali_voice *pvoice;
1462
1463         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1464                                      channel);
1465         if (!pvoice)
1466                 return -EAGAIN;
1467
1468         pvoice->substream = substream;
1469         runtime->private_data = pvoice;
1470         runtime->private_free = snd_ali_pcm_free_substream;
1471
1472         runtime->hw = *phw;
1473         snd_pcm_set_sync(substream);
1474         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1475                                      0, 64*1024);
1476         return 0;
1477 }
1478
1479 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1480 {
1481         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1482 }
1483
1484 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1485 {
1486         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1487 }
1488
1489 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1490 {
1491         return 0;
1492 }
1493
1494 static int snd_ali_close(struct snd_pcm_substream *substream)
1495 {
1496         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1497         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1498
1499         snd_ali_disable_special_channel(codec,pvoice->number);
1500
1501         return 0;
1502 }
1503
1504 static const struct snd_pcm_ops snd_ali_playback_ops = {
1505         .open =         snd_ali_playback_open,
1506         .close =        snd_ali_playback_close,
1507         .hw_params =    snd_ali_playback_hw_params,
1508         .hw_free =      snd_ali_playback_hw_free,
1509         .prepare =      snd_ali_playback_prepare,
1510         .trigger =      snd_ali_trigger,
1511         .pointer =      snd_ali_playback_pointer,
1512 };
1513
1514 static const struct snd_pcm_ops snd_ali_capture_ops = {
1515         .open =         snd_ali_capture_open,
1516         .close =        snd_ali_close,
1517         .prepare =      snd_ali_prepare,
1518         .trigger =      snd_ali_trigger,
1519         .pointer =      snd_ali_pointer,
1520 };
1521
1522 /*
1523  * Modem PCM
1524  */
1525
1526 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1527                                  struct snd_pcm_hw_params *hw_params)
1528 {
1529         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1530         unsigned int modem_num = chip->num_of_codecs - 1;
1531         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1532                        params_rate(hw_params));
1533         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1534         return 0;
1535 }
1536
1537 static const struct snd_pcm_hardware snd_ali_modem =
1538 {
1539         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1540                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1541                          SNDRV_PCM_INFO_MMAP_VALID |
1542                          SNDRV_PCM_INFO_RESUME |
1543                          SNDRV_PCM_INFO_SYNC_START),
1544         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1545         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1546                          SNDRV_PCM_RATE_16000),
1547         .rate_min =             8000,
1548         .rate_max =             16000,
1549         .channels_min =         1,
1550         .channels_max =         1,
1551         .buffer_bytes_max =     (256*1024),
1552         .period_bytes_min =     64,
1553         .period_bytes_max =     (256*1024),
1554         .periods_min =          1,
1555         .periods_max =          1024,
1556         .fifo_size =            0,
1557 };
1558
1559 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1560                               int channel)
1561 {
1562         static const unsigned int rates[] = {8000, 9600, 12000, 16000};
1563         static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1564                 .count = ARRAY_SIZE(rates),
1565                 .list = rates,
1566                 .mask = 0,
1567         };
1568         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1569
1570         if (err)
1571                 return err;
1572         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1573                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1574 }
1575
1576 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1577 {
1578         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1579 }
1580
1581 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1582 {
1583         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1584 }
1585
1586 static const struct snd_pcm_ops snd_ali_modem_playback_ops = {
1587         .open =         snd_ali_modem_playback_open,
1588         .close =        snd_ali_close,
1589         .hw_params =    snd_ali_modem_hw_params,
1590         .prepare =      snd_ali_prepare,
1591         .trigger =      snd_ali_trigger,
1592         .pointer =      snd_ali_pointer,
1593 };
1594
1595 static const struct snd_pcm_ops snd_ali_modem_capture_ops = {
1596         .open =         snd_ali_modem_capture_open,
1597         .close =        snd_ali_close,
1598         .hw_params =    snd_ali_modem_hw_params,
1599         .prepare =      snd_ali_prepare,
1600         .trigger =      snd_ali_trigger,
1601         .pointer =      snd_ali_pointer,
1602 };
1603
1604
1605 struct ali_pcm_description {
1606         char *name;
1607         unsigned int playback_num;
1608         unsigned int capture_num;
1609         const struct snd_pcm_ops *playback_ops;
1610         const struct snd_pcm_ops *capture_ops;
1611         unsigned short class;
1612 };
1613
1614
1615 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1616 {
1617         struct snd_ali *codec = pcm->private_data;
1618         codec->pcm[pcm->device] = NULL;
1619 }
1620
1621
1622 static int snd_ali_pcm(struct snd_ali *codec, int device,
1623                        struct ali_pcm_description *desc)
1624 {
1625         struct snd_pcm *pcm;
1626         int err;
1627
1628         err = snd_pcm_new(codec->card, desc->name, device,
1629                           desc->playback_num, desc->capture_num, &pcm);
1630         if (err < 0) {
1631                 dev_err(codec->card->dev,
1632                         "snd_ali_pcm: err called snd_pcm_new.\n");
1633                 return err;
1634         }
1635         pcm->private_data = codec;
1636         pcm->private_free = snd_ali_pcm_free;
1637         if (desc->playback_ops)
1638                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1639                                 desc->playback_ops);
1640         if (desc->capture_ops)
1641                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1642                                 desc->capture_ops);
1643
1644         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1645                                        &codec->pci->dev, 64*1024, 128*1024);
1646
1647         pcm->info_flags = 0;
1648         pcm->dev_class = desc->class;
1649         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1650         strcpy(pcm->name, desc->name);
1651         codec->pcm[0] = pcm;
1652         return 0;
1653 }
1654
1655 static struct ali_pcm_description ali_pcms[] = {
1656         { .name = "ALI 5451",
1657           .playback_num = ALI_CHANNELS,
1658           .capture_num = 1,
1659           .playback_ops = &snd_ali_playback_ops,
1660           .capture_ops = &snd_ali_capture_ops
1661         },
1662         { .name = "ALI 5451 modem",
1663           .playback_num = 1,
1664           .capture_num = 1,
1665           .playback_ops = &snd_ali_modem_playback_ops,
1666           .capture_ops = &snd_ali_modem_capture_ops,
1667           .class = SNDRV_PCM_CLASS_MODEM
1668         }
1669 };
1670
1671 static int snd_ali_build_pcms(struct snd_ali *codec)
1672 {
1673         int i, err;
1674         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1675                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1676                 if (err < 0)
1677                         return err;
1678         }
1679         return 0;
1680 }
1681
1682
1683 #define ALI5451_SPDIF(xname, xindex, value) \
1684 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1685 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1686 .put = snd_ali5451_spdif_put, .private_value = value}
1687
1688 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1689
1690 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1691                                  struct snd_ctl_elem_value *ucontrol)
1692 {
1693         struct snd_ali *codec = kcontrol->private_data;
1694         unsigned int spdif_enable;
1695
1696         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1697
1698         spin_lock_irq(&codec->reg_lock);
1699         switch (kcontrol->private_value) {
1700         case 0:
1701                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1702                 break;
1703         case 1:
1704                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1705                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1706                 break;
1707         case 2:
1708                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1709                 break;
1710         default:
1711                 break;
1712         }
1713         ucontrol->value.integer.value[0] = spdif_enable;
1714         spin_unlock_irq(&codec->reg_lock);
1715         return 0;
1716 }
1717
1718 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1719                                  struct snd_ctl_elem_value *ucontrol)
1720 {
1721         struct snd_ali *codec = kcontrol->private_data;
1722         unsigned int change = 0, spdif_enable = 0;
1723
1724         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1725
1726         spin_lock_irq(&codec->reg_lock);
1727         switch (kcontrol->private_value) {
1728         case 0:
1729                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1730                 change = change ^ spdif_enable;
1731                 if (change) {
1732                         if (spdif_enable) {
1733                                 codec->spdif_mask |= 0x02;
1734                                 snd_ali_enable_spdif_out(codec);
1735                         } else {
1736                                 codec->spdif_mask &= ~(0x02);
1737                                 codec->spdif_mask &= ~(0x04);
1738                                 snd_ali_disable_spdif_out(codec);
1739                         }
1740                 }
1741                 break;
1742         case 1:
1743                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1744                 change = change ^ spdif_enable;
1745                 if (change && (codec->spdif_mask & 0x02)) {
1746                         if (spdif_enable) {
1747                                 codec->spdif_mask |= 0x04;
1748                                 snd_ali_enable_spdif_chnout(codec);
1749                         } else {
1750                                 codec->spdif_mask &= ~(0x04);
1751                                 snd_ali_disable_spdif_chnout(codec);
1752                         }
1753                 }
1754                 break;
1755         case 2:
1756                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1757                 change = change ^ spdif_enable;
1758                 if (change) {
1759                         if (spdif_enable) {
1760                                 codec->spdif_mask |= 0x01;
1761                                 snd_ali_enable_spdif_in(codec);
1762                         } else {
1763                                 codec->spdif_mask &= ~(0x01);
1764                                 snd_ali_disable_spdif_in(codec);
1765                         }
1766                 }
1767                 break;
1768         default:
1769                 break;
1770         }
1771         spin_unlock_irq(&codec->reg_lock);
1772
1773         return change;
1774 }
1775
1776 static const struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1777         /* spdif aplayback switch */
1778         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1779         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1780         /* spdif out to spdif channel */
1781         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1782         /* spdif in from spdif channel */
1783         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1784 };
1785
1786 static int snd_ali_mixer(struct snd_ali *codec)
1787 {
1788         struct snd_ac97_template ac97;
1789         unsigned int idx;
1790         int i, err;
1791         static const struct snd_ac97_bus_ops ops = {
1792                 .write = snd_ali_codec_write,
1793                 .read = snd_ali_codec_read,
1794         };
1795
1796         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1797         if (err < 0)
1798                 return err;
1799
1800         memset(&ac97, 0, sizeof(ac97));
1801         ac97.private_data = codec;
1802
1803         for (i = 0; i < codec->num_of_codecs; i++) {
1804                 ac97.num = i;
1805                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1806                 if (err < 0) {
1807                         dev_err(codec->card->dev,
1808                                    "ali mixer %d creating error.\n", i);
1809                         if (i == 0)
1810                                 return err;
1811                         codec->num_of_codecs = 1;
1812                         break;
1813                 }
1814         }
1815
1816         if (codec->spdif_support) {
1817                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1818                         err = snd_ctl_add(codec->card,
1819                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1820                         if (err < 0)
1821                                 return err;
1822                 }
1823         }
1824         return 0;
1825 }
1826
1827 #ifdef CONFIG_PM_SLEEP
1828 static int ali_suspend(struct device *dev)
1829 {
1830         struct snd_card *card = dev_get_drvdata(dev);
1831         struct snd_ali *chip = card->private_data;
1832         struct snd_ali_image *im;
1833         int i, j;
1834
1835         im = chip->image;
1836         if (!im)
1837                 return 0;
1838
1839         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1840         for (i = 0; i < chip->num_of_codecs; i++)
1841                 snd_ac97_suspend(chip->ac97[i]);
1842
1843         spin_lock_irq(&chip->reg_lock);
1844
1845         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1846         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1847         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1848
1849         /* disable all IRQ bits */
1850         outl(0, ALI_REG(chip, ALI_MISCINT));
1851
1852         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1853                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1854                         continue;
1855                 im->regs[i] = inl(ALI_REG(chip, i*4));
1856         }
1857
1858         for (i = 0; i < ALI_CHANNELS; i++) {
1859                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1860                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1861                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1862         }
1863
1864         /* stop all HW channel */
1865         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1866
1867         spin_unlock_irq(&chip->reg_lock);
1868         return 0;
1869 }
1870
1871 static int ali_resume(struct device *dev)
1872 {
1873         struct snd_card *card = dev_get_drvdata(dev);
1874         struct snd_ali *chip = card->private_data;
1875         struct snd_ali_image *im;
1876         int i, j;
1877
1878         im = chip->image;
1879         if (!im)
1880                 return 0;
1881
1882         spin_lock_irq(&chip->reg_lock);
1883
1884         for (i = 0; i < ALI_CHANNELS; i++) {
1885                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1886                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1887                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1888         }
1889
1890         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1891                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1892                     (i*4 == ALI_START))
1893                         continue;
1894                 outl(im->regs[i], ALI_REG(chip, i*4));
1895         }
1896
1897         /* start HW channel */
1898         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1899         /* restore IRQ enable bits */
1900         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1901
1902         spin_unlock_irq(&chip->reg_lock);
1903
1904         for (i = 0 ; i < chip->num_of_codecs; i++)
1905                 snd_ac97_resume(chip->ac97[i]);
1906
1907         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1908         return 0;
1909 }
1910
1911 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1912 #define ALI_PM_OPS      &ali_pm
1913 #else
1914 #define ALI_PM_OPS      NULL
1915 #endif /* CONFIG_PM_SLEEP */
1916
1917 static int snd_ali_free(struct snd_ali * codec)
1918 {
1919         if (codec->hw_initialized)
1920                 snd_ali_disable_address_interrupt(codec);
1921         if (codec->irq >= 0)
1922                 free_irq(codec->irq, codec);
1923         if (codec->port)
1924                 pci_release_regions(codec->pci);
1925         pci_disable_device(codec->pci);
1926 #ifdef CONFIG_PM_SLEEP
1927         kfree(codec->image);
1928 #endif
1929         pci_dev_put(codec->pci_m1533);
1930         pci_dev_put(codec->pci_m7101);
1931         kfree(codec);
1932         return 0;
1933 }
1934
1935 static int snd_ali_chip_init(struct snd_ali *codec)
1936 {
1937         unsigned int legacy;
1938         unsigned char temp;
1939         struct pci_dev *pci_dev;
1940
1941         dev_dbg(codec->card->dev, "chip initializing ...\n");
1942
1943         if (snd_ali_reset_5451(codec)) {
1944                 dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1945                 return -1;
1946         }
1947
1948         if (codec->revision == ALI_5451_V02) {
1949                 pci_dev = codec->pci_m1533;
1950                 pci_read_config_byte(pci_dev, 0x59, &temp);
1951                 temp |= 0x80;
1952                 pci_write_config_byte(pci_dev, 0x59, temp);
1953
1954                 pci_dev = codec->pci_m7101;
1955                 pci_read_config_byte(pci_dev, 0xb8, &temp);
1956                 temp |= 0x20;
1957                 pci_write_config_byte(pci_dev, 0xB8, temp);
1958         }
1959
1960         pci_read_config_dword(codec->pci, 0x44, &legacy);
1961         legacy &= 0xff00ff00;
1962         legacy |= 0x000800aa;
1963         pci_write_config_dword(codec->pci, 0x44, legacy);
1964
1965         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
1966         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
1967         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
1968         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
1969         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
1970
1971         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
1972         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
1973                                                     AC97_EXTENDED_STATUS);
1974         if (codec->spdif_support) {
1975                 snd_ali_enable_spdif_out(codec);
1976                 codec->spdif_mask = 0x00000002;
1977         }
1978
1979         codec->num_of_codecs = 1;
1980
1981         /* secondary codec - modem */
1982         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
1983                 codec->num_of_codecs++;
1984                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
1985                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
1986                       ALI_SCTRL_LINE_OUT_EN),
1987                      ALI_REG(codec, ALI_SCTRL));
1988         }
1989
1990         dev_dbg(codec->card->dev, "chip initialize succeed.\n");
1991         return 0;
1992
1993 }
1994
1995 /* proc for register dump */
1996 static void snd_ali_proc_read(struct snd_info_entry *entry,
1997                               struct snd_info_buffer *buf)
1998 {
1999         struct snd_ali *codec = entry->private_data;
2000         int i;
2001         for (i = 0; i < 256 ; i+= 4)
2002                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2003 }
2004
2005 static void snd_ali_proc_init(struct snd_ali *codec)
2006 {
2007         snd_card_ro_proc_new(codec->card, "ali5451", codec, snd_ali_proc_read);
2008 }
2009
2010 static int snd_ali_resources(struct snd_ali *codec)
2011 {
2012         int err;
2013
2014         dev_dbg(codec->card->dev, "resources allocation ...\n");
2015         err = pci_request_regions(codec->pci, "ALI 5451");
2016         if (err < 0)
2017                 return err;
2018         codec->port = pci_resource_start(codec->pci, 0);
2019
2020         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2021                         IRQF_SHARED, KBUILD_MODNAME, codec)) {
2022                 dev_err(codec->card->dev, "Unable to request irq.\n");
2023                 return -EBUSY;
2024         }
2025         codec->irq = codec->pci->irq;
2026         codec->card->sync_irq = codec->irq;
2027         dev_dbg(codec->card->dev, "resources allocated.\n");
2028         return 0;
2029 }
2030 static int snd_ali_dev_free(struct snd_device *device)
2031 {
2032         struct snd_ali *codec = device->device_data;
2033         snd_ali_free(codec);
2034         return 0;
2035 }
2036
2037 static int snd_ali_create(struct snd_card *card,
2038                           struct pci_dev *pci,
2039                           int pcm_streams,
2040                           int spdif_support,
2041                           struct snd_ali **r_ali)
2042 {
2043         struct snd_ali *codec;
2044         int i, err;
2045         unsigned short cmdw;
2046         static const struct snd_device_ops ops = {
2047                 .dev_free = snd_ali_dev_free,
2048         };
2049
2050         *r_ali = NULL;
2051
2052         dev_dbg(card->dev, "creating ...\n");
2053
2054         /* enable PCI device */
2055         err = pci_enable_device(pci);
2056         if (err < 0)
2057                 return err;
2058         /* check, if we can restrict PCI DMA transfers to 31 bits */
2059         if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31))) {
2060                 dev_err(card->dev,
2061                         "architecture does not support 31bit PCI busmaster DMA\n");
2062                 pci_disable_device(pci);
2063                 return -ENXIO;
2064         }
2065
2066         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2067         if (!codec) {
2068                 pci_disable_device(pci);
2069                 return -ENOMEM;
2070         }
2071
2072         spin_lock_init(&codec->reg_lock);
2073         spin_lock_init(&codec->voice_alloc);
2074
2075         codec->card = card;
2076         codec->pci = pci;
2077         codec->irq = -1;
2078         codec->revision = pci->revision;
2079         codec->spdif_support = spdif_support;
2080
2081         if (pcm_streams < 1)
2082                 pcm_streams = 1;
2083         if (pcm_streams > 32)
2084                 pcm_streams = 32;
2085
2086         pci_set_master(pci);
2087         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2088         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2089                 cmdw |= PCI_COMMAND_IO;
2090                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2091         }
2092         pci_set_master(pci);
2093
2094         if (snd_ali_resources(codec)) {
2095                 snd_ali_free(codec);
2096                 return -EBUSY;
2097         }
2098
2099         codec->synth.chmap = 0;
2100         codec->synth.chcnt = 0;
2101         codec->spdif_mask = 0;
2102         codec->synth.synthcount = 0;
2103
2104         if (codec->revision == ALI_5451_V02)
2105                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2106         else
2107                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2108         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2109
2110         codec->chregs.regs.start  = ALI_START;
2111         codec->chregs.regs.stop   = ALI_STOP;
2112         codec->chregs.regs.aint   = ALI_AINT;
2113         codec->chregs.regs.ainten = ALI_AINTEN;
2114
2115         codec->chregs.data.start  = 0x00;
2116         codec->chregs.data.stop   = 0x00;
2117         codec->chregs.data.aint   = 0x00;
2118         codec->chregs.data.ainten = 0x00;
2119
2120         /* M1533: southbridge */
2121         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2122         if (!codec->pci_m1533) {
2123                 dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2124                 snd_ali_free(codec);
2125                 return -ENODEV;
2126         }
2127         /* M7101: power management */
2128         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2129         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2130                 dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2131                 snd_ali_free(codec);
2132                 return -ENODEV;
2133         }
2134
2135         dev_dbg(card->dev, "snd_device_new is called.\n");
2136         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2137         if (err < 0) {
2138                 snd_ali_free(codec);
2139                 return err;
2140         }
2141
2142         /* initialise synth voices*/
2143         for (i = 0; i < ALI_CHANNELS; i++)
2144                 codec->synth.voices[i].number = i;
2145
2146         err = snd_ali_chip_init(codec);
2147         if (err < 0) {
2148                 dev_err(card->dev, "ali create: chip init error.\n");
2149                 return err;
2150         }
2151
2152 #ifdef CONFIG_PM_SLEEP
2153         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2154         if (!codec->image)
2155                 dev_warn(card->dev, "can't allocate apm buffer\n");
2156 #endif
2157
2158         snd_ali_enable_address_interrupt(codec);
2159         codec->hw_initialized = 1;
2160
2161         *r_ali = codec;
2162         dev_dbg(card->dev, "created.\n");
2163         return 0;
2164 }
2165
2166 static int snd_ali_probe(struct pci_dev *pci,
2167                          const struct pci_device_id *pci_id)
2168 {
2169         struct snd_card *card;
2170         struct snd_ali *codec;
2171         int err;
2172
2173         dev_dbg(&pci->dev, "probe ...\n");
2174
2175         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2176         if (err < 0)
2177                 return err;
2178
2179         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2180         if (err < 0)
2181                 goto error;
2182         card->private_data = codec;
2183
2184         dev_dbg(&pci->dev, "mixer building ...\n");
2185         err = snd_ali_mixer(codec);
2186         if (err < 0)
2187                 goto error;
2188
2189         dev_dbg(&pci->dev, "pcm building ...\n");
2190         err = snd_ali_build_pcms(codec);
2191         if (err < 0)
2192                 goto error;
2193
2194         snd_ali_proc_init(codec);
2195
2196         strcpy(card->driver, "ALI5451");
2197         strcpy(card->shortname, "ALI 5451");
2198
2199         sprintf(card->longname, "%s at 0x%lx, irq %i",
2200                 card->shortname, codec->port, codec->irq);
2201
2202         dev_dbg(&pci->dev, "register card.\n");
2203         err = snd_card_register(card);
2204         if (err < 0)
2205                 goto error;
2206
2207         pci_set_drvdata(pci, card);
2208         return 0;
2209
2210  error:
2211         snd_card_free(card);
2212         return err;
2213 }
2214
2215 static void snd_ali_remove(struct pci_dev *pci)
2216 {
2217         snd_card_free(pci_get_drvdata(pci));
2218 }
2219
2220 static struct pci_driver ali5451_driver = {
2221         .name = KBUILD_MODNAME,
2222         .id_table = snd_ali_ids,
2223         .probe = snd_ali_probe,
2224         .remove = snd_ali_remove,
2225         .driver = {
2226                 .pm = ALI_PM_OPS,
2227         },
2228 };
2229
2230 module_pci_driver(ali5451_driver);