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 MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
  33
  34 static int index = SNDRV_DEFAULT_IDX1;  /* Index */
  35 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  36 static int pcm_channels = 32;
  37 static bool spdif;
  38
  39 module_param(index, int, 0444);
  40 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  41 module_param(id, charp, 0444);
  42 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  43 module_param(pcm_channels, int, 0444);
  44 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  45 module_param(spdif, bool, 0444);
  46 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  47
  48 /* just for backward compatibility */
  49 static bool enable;
  50 module_param(enable, bool, 0444);
  51
  52
  53 /*
  54  *  Constants definition
  55  */
  56
  57 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  58
  59
  60 #define ALI_CHANNELS            32
  61
  62 #define ALI_PCM_IN_CHANNEL      31
  63 #define ALI_SPDIF_IN_CHANNEL    19
  64 #define ALI_SPDIF_OUT_CHANNEL   15
  65 #define ALI_CENTER_CHANNEL      24
  66 #define ALI_LEF_CHANNEL         23
  67 #define ALI_SURR_LEFT_CHANNEL   26
  68 #define ALI_SURR_RIGHT_CHANNEL  25
  69 #define ALI_MODEM_IN_CHANNEL    21
  70 #define ALI_MODEM_OUT_CHANNEL   20
  71
  72 #define SNDRV_ALI_VOICE_TYPE_PCM        01
  73 #define SNDRV_ALI_VOICE_TYPE_OTH        02
  74
  75 #define ALI_5451_V02            0x02
  76
  77 /*
  78  *  Direct Registers
  79  */
  80
  81 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
  82 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
  83 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
  84 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
  85 #define ALI_MPUR0               0x20
  86 #define ALI_MPUR1               0x21
  87 #define ALI_MPUR2               0x22
  88 #define ALI_MPUR3               0x23
  89
  90 #define ALI_AC97_WRITE          0x40
  91 #define ALI_AC97_READ           0x44
  92
  93 #define ALI_SCTRL               0x48
  94 #define   ALI_SPDIF_OUT_ENABLE          0x20
  95 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
  96 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
  97 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
  98 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
  99 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
 100 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 101 #define ALI_AC97_GPIO           0x4c
 102 #define   ALI_AC97_GPIO_ENABLE          0x8000
 103 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 104 #define ALI_SPDIF_CS            0x70
 105 #define ALI_SPDIF_CTRL          0x74
 106 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 107 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 108 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 109 #define ALI_START               0x80
 110 #define ALI_STOP                0x84
 111 #define ALI_CSPF                0x90
 112 #define ALI_AINT                0x98
 113 #define ALI_GC_CIR              0xa0
 114         #define ENDLP_IE                0x00001000
 115         #define MIDLP_IE                0x00002000
 116 #define ALI_AINTEN              0xa4
 117 #define ALI_VOLUME              0xa8
 118 #define ALI_SBDELTA_DELTA_R     0xac
 119 #define ALI_MISCINT             0xb0
 120         #define ADDRESS_IRQ             0x00000020
 121         #define TARGET_REACHED          0x00008000
 122         #define MIXER_OVERFLOW          0x00000800
 123         #define MIXER_UNDERFLOW         0x00000400
 124         #define GPIO_IRQ                0x01000000
 125 #define ALI_SBBL_SBCL           0xc0
 126 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 127 #define ALI_STIMER              0xc8
 128 #define ALI_GLOBAL_CONTROL      0xd4
 129 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 130 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 131 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 132 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 133 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 134
 135 #define ALI_CSO_ALPHA_FMS       0xe0
 136 #define ALI_LBA                 0xe4
 137 #define ALI_ESO_DELTA           0xe8
 138 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 139 #define ALI_EBUF1               0xf4
 140 #define ALI_EBUF2               0xf8
 141
 142 #define ALI_REG(codec, x) ((codec)->port + x)
 143
 144 #define MAX_CODECS 2
 145
 146
 147 struct snd_ali;
 148 struct snd_ali_voice;
 149
 150 struct snd_ali_channel_control {
 151         /* register data */
 152         struct REGDATA {
 153                 unsigned int start;
 154                 unsigned int stop;
 155                 unsigned int aint;
 156                 unsigned int ainten;
 157         } data;
 158
 159         /* register addresses */
 160         struct REGS {
 161                 unsigned int start;
 162                 unsigned int stop;
 163                 unsigned int aint;
 164                 unsigned int ainten;
 165                 unsigned int ac97read;
 166                 unsigned int ac97write;
 167         } regs;
 168
 169 };
 170
 171 struct snd_ali_voice {
 172         unsigned int number;
 173         unsigned int use :1,
 174                 pcm :1,
 175                 midi :1,
 176                 mode :1,
 177                 synth :1,
 178                 running :1;
 179
 180         /* PCM data */
 181         struct snd_ali *codec;
 182         struct snd_pcm_substream *substream;
 183         struct snd_ali_voice *extra;
 184
 185         int eso;                /* final ESO value for channel */
 186         int count;              /* runtime->period_size */
 187
 188         /* --- */
 189
 190         void *private_data;
 191         void (*private_free)(void *private_data);
 192 };
 193
 194
 195 struct snd_alidev {
 196
 197         struct snd_ali_voice voices[ALI_CHANNELS];
 198
 199         unsigned int    chcnt;                  /* num of opened channels */
 200         unsigned int    chmap;                  /* bitmap for opened channels */
 201         unsigned int synthcount;
 202
 203 };
 204
 205
 206 #define ALI_GLOBAL_REGS         56
 207 #define ALI_CHANNEL_REGS        8
 208 struct snd_ali_image {
 209         u32 regs[ALI_GLOBAL_REGS];
 210         u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 211 };
 212
 213
 214 struct snd_ali {
 215         int             irq;
 216         unsigned long   port;
 217         unsigned char   revision;
 218
 219         unsigned int hw_initialized :1;
 220         unsigned int spdif_support :1;
 221
 222         struct pci_dev  *pci;
 223         struct pci_dev  *pci_m1533;
 224         struct pci_dev  *pci_m7101;
 225
 226         struct snd_card *card;
 227         struct snd_pcm  *pcm[MAX_CODECS];
 228         struct snd_alidev       synth;
 229         struct snd_ali_channel_control chregs;
 230
 231         /* S/PDIF Mask */
 232         unsigned int    spdif_mask;
 233
 234         unsigned int spurious_irq_count;
 235         unsigned int spurious_irq_max_delta;
 236
 237         unsigned int num_of_codecs;
 238
 239         struct snd_ac97_bus *ac97_bus;
 240         struct snd_ac97 *ac97[MAX_CODECS];
 241         unsigned short  ac97_ext_id;
 242         unsigned short  ac97_ext_status;
 243
 244         spinlock_t      reg_lock;
 245         spinlock_t      voice_alloc;
 246
 247 #ifdef CONFIG_PM_SLEEP
 248         struct snd_ali_image *image;
 249 #endif
 250 };
 251
 252 static const struct pci_device_id snd_ali_ids[] = {
 253         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 254         {0, }
 255 };
 256 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 257
 258 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 259 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 260 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 261                                unsigned short);
 262
 263 /*
 264  *  AC97 ACCESS
 265  */
 266
 267 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 268                                              unsigned int port)
 269 {
 270         return (unsigned int)inl(ALI_REG(codec, port));
 271 }
 272
 273 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 274                                      unsigned int port,
 275                                      unsigned int val)
 276 {
 277         outl((unsigned int)val, ALI_REG(codec, port));
 278 }
 279
 280 static int snd_ali_codec_ready(struct snd_ali *codec,
 281                                unsigned int port)
 282 {
 283         unsigned long end_time;
 284         unsigned int res;
 285
 286         end_time = jiffies + msecs_to_jiffies(250);
 287
 288         for (;;) {
 289                 res = snd_ali_5451_peek(codec,port);
 290                 if (!(res & 0x8000))
 291                         return 0;
 292                 if (!time_after_eq(end_time, jiffies))
 293                         break;
 294                 schedule_timeout_uninterruptible(1);
 295         }
 296
 297         snd_ali_5451_poke(codec, port, res & ~0x8000);
 298         dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n ");
 299         return -EIO;
 300 }
 301
 302 static int snd_ali_stimer_ready(struct snd_ali *codec)
 303 {
 304         unsigned long end_time;
 305         unsigned long dwChk1,dwChk2;
 306
 307         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 308         end_time = jiffies + msecs_to_jiffies(250);
 309
 310         for (;;) {
 311                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 312                 if (dwChk2 != dwChk1)
 313                         return 0;
 314                 if (!time_after_eq(end_time, jiffies))
 315                         break;
 316                 schedule_timeout_uninterruptible(1);
 317         }
 318
 319         dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
 320         return -EIO;
 321 }
 322
 323 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 324                                unsigned short reg,
 325                                unsigned short val)
 326 {
 327         unsigned int dwVal;
 328         unsigned int port;
 329
 330         if (reg >= 0x80) {
 331                 dev_err(codec->card->dev,
 332                         "ali_codec_poke: reg(%xh) invalid.\n", reg);
 333                 return;
 334         }
 335
 336         port = codec->chregs.regs.ac97write;
 337
 338         if (snd_ali_codec_ready(codec, port) < 0)
 339                 return;
 340         if (snd_ali_stimer_ready(codec) < 0)
 341                 return;
 342
 343         dwVal  = (unsigned int) (reg & 0xff);
 344         dwVal |= 0x8000 | (val << 16);
 345         if (secondary)
 346                 dwVal |= 0x0080;
 347         if (codec->revision == ALI_5451_V02)
 348                 dwVal |= 0x0100;
 349
 350         snd_ali_5451_poke(codec, port, dwVal);
 351
 352         return ;
 353 }
 354
 355 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 356                                          int secondary,
 357                                          unsigned short reg)
 358 {
 359         unsigned int dwVal;
 360         unsigned int port;
 361
 362         if (reg >= 0x80) {
 363                 dev_err(codec->card->dev,
 364                         "ali_codec_peek: reg(%xh) invalid.\n", reg);
 365                 return ~0;
 366         }
 367
 368         port = codec->chregs.regs.ac97read;
 369
 370         if (snd_ali_codec_ready(codec, port) < 0)
 371                 return ~0;
 372         if (snd_ali_stimer_ready(codec) < 0)
 373                 return ~0;
 374
 375         dwVal  = (unsigned int) (reg & 0xff);
 376         dwVal |= 0x8000;                                /* bit 15*/
 377         if (secondary)
 378                 dwVal |= 0x0080;
 379
 380         snd_ali_5451_poke(codec, port, dwVal);
 381
 382         if (snd_ali_stimer_ready(codec) < 0)
 383                 return ~0;
 384         if (snd_ali_codec_ready(codec, port) < 0)
 385                 return ~0;
 386
 387         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 388 }
 389
 390 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 391                                 unsigned short reg,
 392                                 unsigned short val )
 393 {
 394         struct snd_ali *codec = ac97->private_data;
 395
 396         dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
 397         if (reg == AC97_GPIO_STATUS) {
 398                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 399                      ALI_REG(codec, ALI_AC97_GPIO));
 400                 return;
 401         }
 402         snd_ali_codec_poke(codec, ac97->num, reg, val);
 403         return ;
 404 }
 405
 406
 407 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 408                                          unsigned short reg)
 409 {
 410         struct snd_ali *codec = ac97->private_data;
 411
 412         dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
 413         return snd_ali_codec_peek(codec, ac97->num, reg);
 414 }
 415
 416 /*
 417  *      AC97 Reset
 418  */
 419
 420 static int snd_ali_reset_5451(struct snd_ali *codec)
 421 {
 422         struct pci_dev *pci_dev;
 423         unsigned short wCount, wReg;
 424         unsigned int   dwVal;
 425
 426         pci_dev = codec->pci_m1533;
 427         if (pci_dev) {
 428                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 429                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 430                 mdelay(5);
 431                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 432                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 433                 mdelay(5);
 434         }
 435
 436         pci_dev = codec->pci;
 437         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 438         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 439         udelay(500);
 440         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 441         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 442         mdelay(5);
 443
 444         wCount = 200;
 445         while(wCount--) {
 446                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 447                 if ((wReg & 0x000f) == 0x000f)
 448                         return 0;
 449                 mdelay(5);
 450         }
 451
 452         /* non-fatal if you have a non PM capable codec */
 453         /* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
 454         return 0;
 455 }
 456
 457 /*
 458  *  ALI 5451 Controller
 459  */
 460
 461 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 462                                            unsigned int channel)
 463 {
 464         unsigned long dwVal;
 465
 466         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 467         dwVal |= 1 << (channel & 0x0000001f);
 468         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 469 }
 470
 471 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 472                                             unsigned int channel)
 473 {
 474         unsigned long dwVal;
 475
 476         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 477         dwVal &= ~(1 << (channel & 0x0000001f));
 478         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 479 }
 480
 481 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 482 {
 483         unsigned int gc;
 484
 485         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 486         gc |= ENDLP_IE;
 487         gc |= MIDLP_IE;
 488         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 489 }
 490
 491 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 492 {
 493         unsigned int gc;
 494
 495         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 496         gc &= ~ENDLP_IE;
 497         gc &= ~MIDLP_IE;
 498         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 499 }
 500
 501 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 502                                       unsigned int channel)
 503 {
 504         unsigned int mask;
 505         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 506
 507         dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
 508
 509         mask = 1 << (channel & 0x1f);
 510         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 511         pchregs->data.ainten &= ~mask;
 512         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 513 }
 514
 515 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 516 {
 517         unsigned int idx =  channel & 0x1f;
 518
 519         if (codec->synth.chcnt >= ALI_CHANNELS){
 520                 dev_err(codec->card->dev,
 521                            "ali_alloc_pcm_channel: no free channels.\n");
 522                 return -1;
 523         }
 524
 525         if (!(codec->synth.chmap & (1 << idx))) {
 526                 codec->synth.chmap |= 1 << idx;
 527                 codec->synth.chcnt++;
 528                 dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
 529                 return idx;
 530         }
 531         return -1;
 532 }
 533
 534 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 535 {
 536         int idx;
 537         int result = -1;
 538
 539         dev_dbg(codec->card->dev,
 540                 "find_free_channel: for %s\n", rec ? "rec" : "pcm");
 541
 542         /* recording */
 543         if (rec) {
 544                 if (codec->spdif_support &&
 545                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 546                      ALI_SPDIF_IN_SUPPORT))
 547                         idx = ALI_SPDIF_IN_CHANNEL;
 548                 else
 549                         idx = ALI_PCM_IN_CHANNEL;
 550
 551                 result = snd_ali_alloc_pcm_channel(codec, idx);
 552                 if (result >= 0)
 553                         return result;
 554                 else {
 555                         dev_err(codec->card->dev,
 556                                 "ali_find_free_channel: record channel is busy now.\n");
 557                         return -1;
 558                 }
 559         }
 560
 561         /* playback... */
 562         if (codec->spdif_support &&
 563             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 564              ALI_SPDIF_OUT_CH_ENABLE)) {
 565                 idx = ALI_SPDIF_OUT_CHANNEL;
 566                 result = snd_ali_alloc_pcm_channel(codec, idx);
 567                 if (result >= 0)
 568                         return result;
 569                 else
 570                         dev_err(codec->card->dev,
 571                                 "ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 572         }
 573
 574         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 575                 result = snd_ali_alloc_pcm_channel(codec, idx);
 576                 if (result >= 0)
 577                         return result;
 578         }
 579         dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
 580         return -1;
 581 }
 582
 583 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 584 {
 585         unsigned int idx = channel & 0x0000001f;
 586
 587         dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
 588
 589         if (channel < 0 || channel >= ALI_CHANNELS)
 590                 return;
 591
 592         if (!(codec->synth.chmap & (1 << idx))) {
 593                 dev_err(codec->card->dev,
 594                         "ali_free_channel_pcm: channel %d is not in use.\n",
 595                         channel);
 596                 return;
 597         } else {
 598                 codec->synth.chmap &= ~(1 << idx);
 599                 codec->synth.chcnt--;
 600         }
 601 }
 602
 603 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 604 {
 605         unsigned int mask = 1 << (channel & 0x1f);
 606
 607         dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
 608         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 609 }
 610
 611 /*
 612  *    S/PDIF Part
 613  */
 614
 615 static void snd_ali_delay(struct snd_ali *codec,int interval)
 616 {
 617         unsigned long  begintimer,currenttimer;
 618
 619         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 620         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 621
 622         while (currenttimer < begintimer + interval) {
 623                 if (snd_ali_stimer_ready(codec) < 0)
 624                         break;
 625                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 626                 cpu_relax();
 627         }
 628 }
 629
 630 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 631 {
 632         u16 wval;
 633         u16 count = 0;
 634         u8  bval, R1 = 0, R2;
 635
 636         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 637         bval |= 0x1F;
 638         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 639
 640         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 641                 count ++;
 642                 snd_ali_delay(codec, 6);
 643                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 644                 R1 = bval & 0x1F;
 645         }
 646
 647         if (count > 50000) {
 648                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 649                 return;
 650         }
 651
 652         for (count = 0; count <= 50000; count++) {
 653                 snd_ali_delay(codec, 6);
 654                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 655                 R2 = bval & 0x1F;
 656                 if (R2 != R1)
 657                         R1 = R2;
 658                 else
 659                         break;
 660         }
 661
 662         if (count > 50000) {
 663                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 664                 return;
 665         }
 666
 667         if (R2 >= 0x0b && R2 <= 0x0e) {
 668                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 669                 wval &= 0xe0f0;
 670                 wval |= (0x09 << 8) | 0x05;
 671                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 672
 673                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 674                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 675         } else if (R2 == 0x12) {
 676                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 677                 wval &= 0xe0f0;
 678                 wval |= (0x0e << 8) | 0x08;
 679                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 680
 681                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 682                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 683         }
 684 }
 685
 686 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 687 {
 688         u32     dwRate;
 689         u8      bval;
 690
 691         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 692         bval &= 0x7f;
 693         bval |= 0x40;
 694         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 695
 696         snd_ali_detect_spdif_rate(codec);
 697
 698         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 699         bval &= 0x0f;
 700
 701         switch (bval) {
 702         case 0: dwRate = 44100; break;
 703         case 1: dwRate = 48000; break;
 704         case 2: dwRate = 32000; break;
 705         default: dwRate = 0; break;
 706         }
 707
 708         return dwRate;
 709 }
 710
 711 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 712 {
 713         unsigned int dwVal;
 714
 715         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 716         dwVal |= ALI_SPDIF_IN_SUPPORT;
 717         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 718
 719         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 720         dwVal |= 0x02;
 721         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 722
 723         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 724 }
 725
 726 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 727 {
 728         unsigned int dwVal;
 729
 730         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 731         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 732         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 733
 734         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 735 }
 736
 737
 738 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 739 {
 740         unsigned char  bVal;
 741         unsigned int  dwRate;
 742
 743         switch (rate) {
 744         case 32000: dwRate = 0x300; break;
 745         case 48000: dwRate = 0x200; break;
 746         default: dwRate = 0; break;
 747         }
 748
 749         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 750         bVal &= (unsigned char)(~(1<<6));
 751
 752         bVal |= 0x80;           /* select right */
 753         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 754         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 755
 756         bVal &= ~0x80;  /* select left */
 757         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 758         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 759 }
 760
 761 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 762 {
 763         unsigned short wVal;
 764         unsigned char bVal;
 765         struct pci_dev *pci_dev;
 766
 767         pci_dev = codec->pci_m1533;
 768         if (pci_dev == NULL)
 769                 return;
 770         pci_read_config_byte(pci_dev, 0x61, &bVal);
 771         bVal |= 0x40;
 772         pci_write_config_byte(pci_dev, 0x61, bVal);
 773         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 774         bVal |= 0x01;
 775         pci_write_config_byte(pci_dev, 0x7d, bVal);
 776
 777         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 778         bVal &= (~0x20);
 779         bVal |= 0x10;
 780         pci_write_config_byte(pci_dev, 0x7e, bVal);
 781
 782         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 783         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 784
 785         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 786         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 787
 788         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 789         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 790         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 791         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 792 }
 793
 794 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 795 {
 796         unsigned short wVal;
 797
 798         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 799         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 800         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 801 /*
 802         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 803         if (flag & ALI_SPDIF_OUT_NON_PCM)
 804                 wVal |= 0x0002;
 805         else
 806                 wVal &= (~0x0002);
 807         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 808 */
 809         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 810 }
 811
 812 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 813 {
 814         unsigned short wVal;
 815
 816         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 817         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 818         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 819
 820         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 821 }
 822
 823 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 824 {
 825         unsigned char  bVal;
 826
 827         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 828         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 829
 830         snd_ali_disable_spdif_chnout(codec);
 831 }
 832
 833 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 834 {
 835         struct snd_ali_voice *pvoice;
 836         struct snd_ali_channel_control *pchregs;
 837         unsigned int old, mask;
 838
 839         pchregs = &(codec->chregs);
 840
 841         /* check if interrupt occurred for channel */
 842         old  = pchregs->data.aint;
 843         mask = 1U << (channel & 0x1f);
 844
 845         if (!(old & mask))
 846                 return;
 847
 848         pvoice = &codec->synth.voices[channel];
 849
 850         udelay(100);
 851         spin_lock(&codec->reg_lock);
 852
 853         if (pvoice->pcm && pvoice->substream) {
 854                 /* pcm interrupt */
 855                 if (pvoice->running) {
 856                         dev_dbg(codec->card->dev,
 857                                 "update_ptr: cso=%4.4x cspf=%d.\n",
 858                                 inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
 859                                 (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
 860                         spin_unlock(&codec->reg_lock);
 861                         snd_pcm_period_elapsed(pvoice->substream);
 862                         spin_lock(&codec->reg_lock);
 863                 } else {
 864                         snd_ali_stop_voice(codec, channel);
 865                         snd_ali_disable_voice_irq(codec, channel);
 866                 }
 867         } else if (codec->synth.voices[channel].synth) {
 868                 /* synth interrupt */
 869         } else if (codec->synth.voices[channel].midi) {
 870                 /* midi interrupt */
 871         } else {
 872                 /* unknown interrupt */
 873                 snd_ali_stop_voice(codec, channel);
 874                 snd_ali_disable_voice_irq(codec, channel);
 875         }
 876         spin_unlock(&codec->reg_lock);
 877         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 878         pchregs->data.aint = old & (~mask);
 879 }
 880
 881 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 882 {
 883         struct snd_ali  *codec = dev_id;
 884         int channel;
 885         unsigned int audio_int;
 886         struct snd_ali_channel_control *pchregs;
 887
 888         if (codec == NULL || !codec->hw_initialized)
 889                 return IRQ_NONE;
 890
 891         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 892         if (!audio_int)
 893                 return IRQ_NONE;
 894
 895         pchregs = &(codec->chregs);
 896         if (audio_int & ADDRESS_IRQ) {
 897                 /* get interrupt status for all channels */
 898                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 899                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 900                         snd_ali_update_ptr(codec, channel);
 901         }
 902         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 903                 ALI_REG(codec, ALI_MISCINT));
 904
 905         return IRQ_HANDLED;
 906 }
 907
 908
 909 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 910                                                  int type, int rec, int channel)
 911 {
 912         struct snd_ali_voice *pvoice;
 913         int idx;
 914
 915         dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
 916
 917         spin_lock_irq(&codec->voice_alloc);
 918         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 919                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 920                         snd_ali_find_free_channel(codec,rec);
 921                 if (idx < 0) {
 922                         dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
 923                         spin_unlock_irq(&codec->voice_alloc);
 924                         return NULL;
 925                 }
 926                 pvoice = &(codec->synth.voices[idx]);
 927                 pvoice->codec = codec;
 928                 pvoice->use = 1;
 929                 pvoice->pcm = 1;
 930                 pvoice->mode = rec;
 931                 spin_unlock_irq(&codec->voice_alloc);
 932                 return pvoice;
 933         }
 934         spin_unlock_irq(&codec->voice_alloc);
 935         return NULL;
 936 }
 937
 938
 939 static void snd_ali_free_voice(struct snd_ali * codec,
 940                                struct snd_ali_voice *pvoice)
 941 {
 942         void (*private_free)(void *);
 943         void *private_data;
 944
 945         dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
 946         if (!pvoice->use)
 947                 return;
 948         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 949         spin_lock_irq(&codec->voice_alloc);
 950         private_free = pvoice->private_free;
 951         private_data = pvoice->private_data;
 952         pvoice->private_free = NULL;
 953         pvoice->private_data = NULL;
 954         if (pvoice->pcm)
 955                 snd_ali_free_channel_pcm(codec, pvoice->number);
 956         pvoice->use = pvoice->pcm = pvoice->synth = 0;
 957         pvoice->substream = NULL;
 958         spin_unlock_irq(&codec->voice_alloc);
 959         if (private_free)
 960                 private_free(private_data);
 961 }
 962
 963
 964 static void snd_ali_clear_voices(struct snd_ali *codec,
 965                                  unsigned int v_min,
 966                                  unsigned int v_max)
 967 {
 968         unsigned int i;
 969
 970         for (i = v_min; i <= v_max; i++) {
 971                 snd_ali_stop_voice(codec, i);
 972                 snd_ali_disable_voice_irq(codec, i);
 973         }
 974 }
 975
 976 static void snd_ali_write_voice_regs(struct snd_ali *codec,
 977                          unsigned int Channel,
 978                          unsigned int LBA,
 979                          unsigned int CSO,
 980                          unsigned int ESO,
 981                          unsigned int DELTA,
 982                          unsigned int ALPHA_FMS,
 983                          unsigned int GVSEL,
 984                          unsigned int PAN,
 985                          unsigned int VOL,
 986                          unsigned int CTRL,
 987                          unsigned int EC)
 988 {
 989         unsigned int ctlcmds[4];
 990
 991         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
 992
 993         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
 994         ctlcmds[1] =  LBA;
 995         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
 996         ctlcmds[3] =  (GVSEL << 31) |
 997                       ((PAN & 0x0000007f) << 24) |
 998                       ((VOL & 0x000000ff) << 16) |
 999                       ((CTRL & 0x0000000f) << 12) |
1000                       (EC & 0x00000fff);
1001
1002         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1003
1004         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1005         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1006         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1007         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1008
1009         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1010         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1011 }
1012
1013 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1014 {
1015         unsigned int delta;
1016
1017         if (rate < 4000)
1018                 rate = 4000;
1019         if (rate > 48000)
1020                 rate = 48000;
1021
1022         if (rec) {
1023                 if (rate == 44100)
1024                         delta = 0x116a;
1025                 else if (rate == 8000)
1026                         delta = 0x6000;
1027                 else if (rate == 48000)
1028                         delta = 0x1000;
1029                 else
1030                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1031         } else {
1032                 if (rate == 44100)
1033                         delta = 0xeb3;
1034                 else if (rate == 8000)
1035                         delta = 0x2ab;
1036                 else if (rate == 48000)
1037                         delta = 0x1000;
1038                 else
1039                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1040         }
1041
1042         return delta;
1043 }
1044
1045 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1046 {
1047         unsigned int CTRL;
1048         struct snd_pcm_runtime *runtime = substream->runtime;
1049
1050         /* set ctrl mode
1051            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1052          */
1053         CTRL = 0x00000001;
1054         if (snd_pcm_format_width(runtime->format) == 16)
1055                 CTRL |= 0x00000008;     /* 16-bit data */
1056         if (!snd_pcm_format_unsigned(runtime->format))
1057                 CTRL |= 0x00000002;     /* signed data */
1058         if (runtime->channels > 1)
1059                 CTRL |= 0x00000004;     /* stereo data */
1060         return CTRL;
1061 }
1062
1063 /*
1064  *  PCM part
1065  */
1066
1067 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1068                                int cmd)
1069
1070 {
1071         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1072         struct snd_pcm_substream *s;
1073         unsigned int what, whati;
1074         struct snd_ali_voice *pvoice, *evoice;
1075         unsigned int val;
1076         int do_start;
1077
1078         switch (cmd) {
1079         case SNDRV_PCM_TRIGGER_START:
1080         case SNDRV_PCM_TRIGGER_RESUME:
1081                 do_start = 1;
1082                 break;
1083         case SNDRV_PCM_TRIGGER_STOP:
1084         case SNDRV_PCM_TRIGGER_SUSPEND:
1085                 do_start = 0;
1086                 break;
1087         default:
1088                 return -EINVAL;
1089         }
1090
1091         what = whati = 0;
1092         snd_pcm_group_for_each_entry(s, substream) {
1093                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1094                         pvoice = s->runtime->private_data;
1095                         evoice = pvoice->extra;
1096                         what |= 1 << (pvoice->number & 0x1f);
1097                         if (evoice == NULL)
1098                                 whati |= 1 << (pvoice->number & 0x1f);
1099                         else {
1100                                 whati |= 1 << (evoice->number & 0x1f);
1101                                 what |= 1 << (evoice->number & 0x1f);
1102                         }
1103                         if (do_start) {
1104                                 pvoice->running = 1;
1105                                 if (evoice != NULL)
1106                                         evoice->running = 1;
1107                         } else {
1108                                 pvoice->running = 0;
1109                                 if (evoice != NULL)
1110                                         evoice->running = 0;
1111                         }
1112                         snd_pcm_trigger_done(s, substream);
1113                 }
1114         }
1115         spin_lock(&codec->reg_lock);
1116         if (!do_start)
1117                 outl(what, ALI_REG(codec, ALI_STOP));
1118         val = inl(ALI_REG(codec, ALI_AINTEN));
1119         if (do_start)
1120                 val |= whati;
1121         else
1122                 val &= ~whati;
1123         outl(val, ALI_REG(codec, ALI_AINTEN));
1124         if (do_start)
1125                 outl(what, ALI_REG(codec, ALI_START));
1126         dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1127         spin_unlock(&codec->reg_lock);
1128
1129         return 0;
1130 }
1131
1132 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1133                                       struct snd_pcm_hw_params *hw_params)
1134 {
1135         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1136         struct snd_pcm_runtime *runtime = substream->runtime;
1137         struct snd_ali_voice *pvoice = runtime->private_data;
1138         struct snd_ali_voice *evoice = pvoice->extra;
1139
1140         /* voice management */
1141
1142         if (params_buffer_size(hw_params) / 2 !=
1143             params_period_size(hw_params)) {
1144                 if (!evoice) {
1145                         evoice = snd_ali_alloc_voice(codec,
1146                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1147                                                      0, -1);
1148                         if (!evoice)
1149                                 return -ENOMEM;
1150                         pvoice->extra = evoice;
1151                         evoice->substream = substream;
1152                 }
1153         } else {
1154                 if (evoice) {
1155                         snd_ali_free_voice(codec, evoice);
1156                         pvoice->extra = evoice = NULL;
1157                 }
1158         }
1159
1160         return 0;
1161 }
1162
1163 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1164 {
1165         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1166         struct snd_pcm_runtime *runtime = substream->runtime;
1167         struct snd_ali_voice *pvoice = runtime->private_data;
1168         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1169
1170         if (evoice) {
1171                 snd_ali_free_voice(codec, evoice);
1172                 pvoice->extra = NULL;
1173         }
1174         return 0;
1175 }
1176
1177 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1178 {
1179         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1180         struct snd_pcm_runtime *runtime = substream->runtime;
1181         struct snd_ali_voice *pvoice = runtime->private_data;
1182         struct snd_ali_voice *evoice = pvoice->extra;
1183
1184         unsigned int LBA;
1185         unsigned int Delta;
1186         unsigned int ESO;
1187         unsigned int CTRL;
1188         unsigned int GVSEL;
1189         unsigned int PAN;
1190         unsigned int VOL;
1191         unsigned int EC;
1192
1193         dev_dbg(codec->card->dev, "playback_prepare ...\n");
1194
1195         spin_lock_irq(&codec->reg_lock);
1196
1197         /* set Delta (rate) value */
1198         Delta = snd_ali_convert_rate(runtime->rate, 0);
1199
1200         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1201             pvoice->number == ALI_PCM_IN_CHANNEL)
1202                 snd_ali_disable_special_channel(codec, pvoice->number);
1203         else if (codec->spdif_support &&
1204                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1205                   ALI_SPDIF_OUT_CH_ENABLE)
1206                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1207                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1208                 Delta = 0x1000;
1209         }
1210
1211         /* set Loop Back Address */
1212         LBA = runtime->dma_addr;
1213
1214         /* set interrupt count size */
1215         pvoice->count = runtime->period_size;
1216
1217         /* set target ESO for channel */
1218         pvoice->eso = runtime->buffer_size;
1219
1220         dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1221                        pvoice->eso, pvoice->count);
1222
1223         /* set ESO to capture first MIDLP interrupt */
1224         ESO = pvoice->eso -1;
1225         /* set ctrl mode */
1226         CTRL = snd_ali_control_mode(substream);
1227
1228         GVSEL = 1;
1229         PAN = 0;
1230         VOL = 0;
1231         EC = 0;
1232         dev_dbg(codec->card->dev, "playback_prepare:\n");
1233         dev_dbg(codec->card->dev,
1234                 "ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1235                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1236         snd_ali_write_voice_regs(codec,
1237                                  pvoice->number,
1238                                  LBA,
1239                                  0,     /* cso */
1240                                  ESO,
1241                                  Delta,
1242                                  0,     /* alpha */
1243                                  GVSEL,
1244                                  PAN,
1245                                  VOL,
1246                                  CTRL,
1247                                  EC);
1248         if (evoice) {
1249                 evoice->count = pvoice->count;
1250                 evoice->eso = pvoice->count << 1;
1251                 ESO = evoice->eso - 1;
1252                 snd_ali_write_voice_regs(codec,
1253                                          evoice->number,
1254                                          LBA,
1255                                          0,     /* cso */
1256                                          ESO,
1257                                          Delta,
1258                                          0,     /* alpha */
1259                                          GVSEL,
1260                                          0x7f,
1261                                          0x3ff,
1262                                          CTRL,
1263                                          EC);
1264         }
1265         spin_unlock_irq(&codec->reg_lock);
1266         return 0;
1267 }
1268
1269
1270 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1271 {
1272         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1273         struct snd_pcm_runtime *runtime = substream->runtime;
1274         struct snd_ali_voice *pvoice = runtime->private_data;
1275         unsigned int LBA;
1276         unsigned int Delta;
1277         unsigned int ESO;
1278         unsigned int CTRL;
1279         unsigned int GVSEL;
1280         unsigned int PAN;
1281         unsigned int VOL;
1282         unsigned int EC;
1283         u8       bValue;
1284
1285         spin_lock_irq(&codec->reg_lock);
1286
1287         dev_dbg(codec->card->dev, "ali_prepare...\n");
1288
1289         snd_ali_enable_special_channel(codec,pvoice->number);
1290
1291         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1292                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1293                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1294
1295         /* Prepare capture intr channel */
1296         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1297
1298                 unsigned int rate;
1299
1300                 spin_unlock_irq(&codec->reg_lock);
1301                 if (codec->revision != ALI_5451_V02)
1302                         return -1;
1303
1304                 rate = snd_ali_get_spdif_in_rate(codec);
1305                 if (rate == 0) {
1306                         dev_warn(codec->card->dev,
1307                                  "ali_capture_prepare: spdif rate detect err!\n");
1308                         rate = 48000;
1309                 }
1310                 spin_lock_irq(&codec->reg_lock);
1311                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1312                 if (bValue & 0x10) {
1313                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1314                         dev_warn(codec->card->dev,
1315                                  "clear SPDIF parity error flag.\n");
1316                 }
1317
1318                 if (rate != 48000)
1319                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1320         }
1321
1322         /* set target ESO for channel  */
1323         pvoice->eso = runtime->buffer_size;
1324
1325         /* set interrupt count size  */
1326         pvoice->count = runtime->period_size;
1327
1328         /* set Loop Back Address  */
1329         LBA = runtime->dma_addr;
1330
1331         /* set ESO to capture first MIDLP interrupt  */
1332         ESO = pvoice->eso - 1;
1333         CTRL = snd_ali_control_mode(substream);
1334         GVSEL = 0;
1335         PAN = 0x00;
1336         VOL = 0x00;
1337         EC = 0;
1338
1339         snd_ali_write_voice_regs(    codec,
1340                                      pvoice->number,
1341                                      LBA,
1342                                      0, /* cso */
1343                                      ESO,
1344                                      Delta,
1345                                      0, /* alpha */
1346                                      GVSEL,
1347                                      PAN,
1348                                      VOL,
1349                                      CTRL,
1350                                      EC);
1351
1352         spin_unlock_irq(&codec->reg_lock);
1353
1354         return 0;
1355 }
1356
1357
1358 static snd_pcm_uframes_t
1359 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1360 {
1361         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1362         struct snd_pcm_runtime *runtime = substream->runtime;
1363         struct snd_ali_voice *pvoice = runtime->private_data;
1364         unsigned int cso;
1365
1366         spin_lock(&codec->reg_lock);
1367         if (!pvoice->running) {
1368                 spin_unlock(&codec->reg_lock);
1369                 return 0;
1370         }
1371         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1372         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1373         spin_unlock(&codec->reg_lock);
1374         dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1375
1376         cso %= runtime->buffer_size;
1377         return cso;
1378 }
1379
1380
1381 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1382 {
1383         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1384         struct snd_pcm_runtime *runtime = substream->runtime;
1385         struct snd_ali_voice *pvoice = runtime->private_data;
1386         unsigned int cso;
1387
1388         spin_lock(&codec->reg_lock);
1389         if (!pvoice->running) {
1390                 spin_unlock(&codec->reg_lock);
1391                 return 0;
1392         }
1393         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1394         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1395         spin_unlock(&codec->reg_lock);
1396
1397         cso %= runtime->buffer_size;
1398         return cso;
1399 }
1400
1401 static const struct snd_pcm_hardware snd_ali_playback =
1402 {
1403         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1404                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1405                          SNDRV_PCM_INFO_MMAP_VALID |
1406                          SNDRV_PCM_INFO_RESUME |
1407                          SNDRV_PCM_INFO_SYNC_START),
1408         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1409                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1410         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1411         .rate_min =             4000,
1412         .rate_max =             48000,
1413         .channels_min =         1,
1414         .channels_max =         2,
1415         .buffer_bytes_max =     (256*1024),
1416         .period_bytes_min =     64,
1417         .period_bytes_max =     (256*1024),
1418         .periods_min =          1,
1419         .periods_max =          1024,
1420         .fifo_size =            0,
1421 };
1422
1423 /*
1424  *  Capture support device description
1425  */
1426
1427 static const struct snd_pcm_hardware snd_ali_capture =
1428 {
1429         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1430                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1431                          SNDRV_PCM_INFO_MMAP_VALID |
1432                          SNDRV_PCM_INFO_RESUME |
1433                          SNDRV_PCM_INFO_SYNC_START),
1434         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1435                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1436         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1437         .rate_min =             4000,
1438         .rate_max =             48000,
1439         .channels_min =         1,
1440         .channels_max =         2,
1441         .buffer_bytes_max =     (128*1024),
1442         .period_bytes_min =     64,
1443         .period_bytes_max =     (128*1024),
1444         .periods_min =          1,
1445         .periods_max =          1024,
1446         .fifo_size =            0,
1447 };
1448
1449 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1450 {
1451         struct snd_ali_voice *pvoice = runtime->private_data;
1452
1453         if (pvoice)
1454                 snd_ali_free_voice(pvoice->codec, pvoice);
1455 }
1456
1457 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1458                         int channel, const struct snd_pcm_hardware *phw)
1459 {
1460         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1461         struct snd_pcm_runtime *runtime = substream->runtime;
1462         struct snd_ali_voice *pvoice;
1463
1464         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1465                                      channel);
1466         if (!pvoice)
1467                 return -EAGAIN;
1468
1469         pvoice->substream = substream;
1470         runtime->private_data = pvoice;
1471         runtime->private_free = snd_ali_pcm_free_substream;
1472
1473         runtime->hw = *phw;
1474         snd_pcm_set_sync(substream);
1475         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1476                                      0, 64*1024);
1477         return 0;
1478 }
1479
1480 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1481 {
1482         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1483 }
1484
1485 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1486 {
1487         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1488 }
1489
1490 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1491 {
1492         return 0;
1493 }
1494
1495 static int snd_ali_close(struct snd_pcm_substream *substream)
1496 {
1497         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1498         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1499
1500         snd_ali_disable_special_channel(codec,pvoice->number);
1501
1502         return 0;
1503 }
1504
1505 static const struct snd_pcm_ops snd_ali_playback_ops = {
1506         .open =         snd_ali_playback_open,
1507         .close =        snd_ali_playback_close,
1508         .hw_params =    snd_ali_playback_hw_params,
1509         .hw_free =      snd_ali_playback_hw_free,
1510         .prepare =      snd_ali_playback_prepare,
1511         .trigger =      snd_ali_trigger,
1512         .pointer =      snd_ali_playback_pointer,
1513 };
1514
1515 static const struct snd_pcm_ops snd_ali_capture_ops = {
1516         .open =         snd_ali_capture_open,
1517         .close =        snd_ali_close,
1518         .prepare =      snd_ali_prepare,
1519         .trigger =      snd_ali_trigger,
1520         .pointer =      snd_ali_pointer,
1521 };
1522
1523 /*
1524  * Modem PCM
1525  */
1526
1527 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1528                                  struct snd_pcm_hw_params *hw_params)
1529 {
1530         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1531         unsigned int modem_num = chip->num_of_codecs - 1;
1532         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1533                        params_rate(hw_params));
1534         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1535         return 0;
1536 }
1537
1538 static const struct snd_pcm_hardware snd_ali_modem =
1539 {
1540         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1541                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1542                          SNDRV_PCM_INFO_MMAP_VALID |
1543                          SNDRV_PCM_INFO_RESUME |
1544                          SNDRV_PCM_INFO_SYNC_START),
1545         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1546         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1547                          SNDRV_PCM_RATE_16000),
1548         .rate_min =             8000,
1549         .rate_max =             16000,
1550         .channels_min =         1,
1551         .channels_max =         1,
1552         .buffer_bytes_max =     (256*1024),
1553         .period_bytes_min =     64,
1554         .period_bytes_max =     (256*1024),
1555         .periods_min =          1,
1556         .periods_max =          1024,
1557         .fifo_size =            0,
1558 };
1559
1560 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1561                               int channel)
1562 {
1563         static const unsigned int rates[] = {8000, 9600, 12000, 16000};
1564         static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1565                 .count = ARRAY_SIZE(rates),
1566                 .list = rates,
1567                 .mask = 0,
1568         };
1569         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1570
1571         if (err)
1572                 return err;
1573         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1574                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1575 }
1576
1577 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1578 {
1579         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1580 }
1581
1582 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1583 {
1584         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1585 }
1586
1587 static const struct snd_pcm_ops snd_ali_modem_playback_ops = {
1588         .open =         snd_ali_modem_playback_open,
1589         .close =        snd_ali_close,
1590         .hw_params =    snd_ali_modem_hw_params,
1591         .prepare =      snd_ali_prepare,
1592         .trigger =      snd_ali_trigger,
1593         .pointer =      snd_ali_pointer,
1594 };
1595
1596 static const struct snd_pcm_ops snd_ali_modem_capture_ops = {
1597         .open =         snd_ali_modem_capture_open,
1598         .close =        snd_ali_close,
1599         .hw_params =    snd_ali_modem_hw_params,
1600         .prepare =      snd_ali_prepare,
1601         .trigger =      snd_ali_trigger,
1602         .pointer =      snd_ali_pointer,
1603 };
1604
1605
1606 struct ali_pcm_description {
1607         char *name;
1608         unsigned int playback_num;
1609         unsigned int capture_num;
1610         const struct snd_pcm_ops *playback_ops;
1611         const struct snd_pcm_ops *capture_ops;
1612         unsigned short class;
1613 };
1614
1615
1616 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1617 {
1618         struct snd_ali *codec = pcm->private_data;
1619         codec->pcm[pcm->device] = NULL;
1620 }
1621
1622
1623 static int snd_ali_pcm(struct snd_ali *codec, int device,
1624                        struct ali_pcm_description *desc)
1625 {
1626         struct snd_pcm *pcm;
1627         int err;
1628
1629         err = snd_pcm_new(codec->card, desc->name, device,
1630                           desc->playback_num, desc->capture_num, &pcm);
1631         if (err < 0) {
1632                 dev_err(codec->card->dev,
1633                         "snd_ali_pcm: err called snd_pcm_new.\n");
1634                 return err;
1635         }
1636         pcm->private_data = codec;
1637         pcm->private_free = snd_ali_pcm_free;
1638         if (desc->playback_ops)
1639                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1640                                 desc->playback_ops);
1641         if (desc->capture_ops)
1642                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1643                                 desc->capture_ops);
1644
1645         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1646                                        &codec->pci->dev, 64*1024, 128*1024);
1647
1648         pcm->info_flags = 0;
1649         pcm->dev_class = desc->class;
1650         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1651         strcpy(pcm->name, desc->name);
1652         codec->pcm[0] = pcm;
1653         return 0;
1654 }
1655
1656 static struct ali_pcm_description ali_pcms[] = {
1657         { .name = "ALI 5451",
1658           .playback_num = ALI_CHANNELS,
1659           .capture_num = 1,
1660           .playback_ops = &snd_ali_playback_ops,
1661           .capture_ops = &snd_ali_capture_ops
1662         },
1663         { .name = "ALI 5451 modem",
1664           .playback_num = 1,
1665           .capture_num = 1,
1666           .playback_ops = &snd_ali_modem_playback_ops,
1667           .capture_ops = &snd_ali_modem_capture_ops,
1668           .class = SNDRV_PCM_CLASS_MODEM
1669         }
1670 };
1671
1672 static int snd_ali_build_pcms(struct snd_ali *codec)
1673 {
1674         int i, err;
1675         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1676                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1677                 if (err < 0)
1678                         return err;
1679         }
1680         return 0;
1681 }
1682
1683
1684 #define ALI5451_SPDIF(xname, xindex, value) \
1685 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1686 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1687 .put = snd_ali5451_spdif_put, .private_value = value}
1688
1689 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1690
1691 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1692                                  struct snd_ctl_elem_value *ucontrol)
1693 {
1694         struct snd_ali *codec = kcontrol->private_data;
1695         unsigned int spdif_enable;
1696
1697         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1698
1699         spin_lock_irq(&codec->reg_lock);
1700         switch (kcontrol->private_value) {
1701         case 0:
1702                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1703                 break;
1704         case 1:
1705                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1706                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1707                 break;
1708         case 2:
1709                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1710                 break;
1711         default:
1712                 break;
1713         }
1714         ucontrol->value.integer.value[0] = spdif_enable;
1715         spin_unlock_irq(&codec->reg_lock);
1716         return 0;
1717 }
1718
1719 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1720                                  struct snd_ctl_elem_value *ucontrol)
1721 {
1722         struct snd_ali *codec = kcontrol->private_data;
1723         unsigned int change = 0, spdif_enable = 0;
1724
1725         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1726
1727         spin_lock_irq(&codec->reg_lock);
1728         switch (kcontrol->private_value) {
1729         case 0:
1730                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1731                 change = change ^ spdif_enable;
1732                 if (change) {
1733                         if (spdif_enable) {
1734                                 codec->spdif_mask |= 0x02;
1735                                 snd_ali_enable_spdif_out(codec);
1736                         } else {
1737                                 codec->spdif_mask &= ~(0x02);
1738                                 codec->spdif_mask &= ~(0x04);
1739                                 snd_ali_disable_spdif_out(codec);
1740                         }
1741                 }
1742                 break;
1743         case 1:
1744                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1745                 change = change ^ spdif_enable;
1746                 if (change && (codec->spdif_mask & 0x02)) {
1747                         if (spdif_enable) {
1748                                 codec->spdif_mask |= 0x04;
1749                                 snd_ali_enable_spdif_chnout(codec);
1750                         } else {
1751                                 codec->spdif_mask &= ~(0x04);
1752                                 snd_ali_disable_spdif_chnout(codec);
1753                         }
1754                 }
1755                 break;
1756         case 2:
1757                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1758                 change = change ^ spdif_enable;
1759                 if (change) {
1760                         if (spdif_enable) {
1761                                 codec->spdif_mask |= 0x01;
1762                                 snd_ali_enable_spdif_in(codec);
1763                         } else {
1764                                 codec->spdif_mask &= ~(0x01);
1765                                 snd_ali_disable_spdif_in(codec);
1766                         }
1767                 }
1768                 break;
1769         default:
1770                 break;
1771         }
1772         spin_unlock_irq(&codec->reg_lock);
1773
1774         return change;
1775 }
1776
1777 static const struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1778         /* spdif aplayback switch */
1779         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1780         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1781         /* spdif out to spdif channel */
1782         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1783         /* spdif in from spdif channel */
1784         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1785 };
1786
1787 static int snd_ali_mixer(struct snd_ali *codec)
1788 {
1789         struct snd_ac97_template ac97;
1790         unsigned int idx;
1791         int i, err;
1792         static const struct snd_ac97_bus_ops ops = {
1793                 .write = snd_ali_codec_write,
1794                 .read = snd_ali_codec_read,
1795         };
1796
1797         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1798         if (err < 0)
1799                 return err;
1800
1801         memset(&ac97, 0, sizeof(ac97));
1802         ac97.private_data = codec;
1803
1804         for (i = 0; i < codec->num_of_codecs; i++) {
1805                 ac97.num = i;
1806                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1807                 if (err < 0) {
1808                         dev_err(codec->card->dev,
1809                                    "ali mixer %d creating error.\n", i);
1810                         if (i == 0)
1811                                 return err;
1812                         codec->num_of_codecs = 1;
1813                         break;
1814                 }
1815         }
1816
1817         if (codec->spdif_support) {
1818                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1819                         err = snd_ctl_add(codec->card,
1820                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1821                         if (err < 0)
1822                                 return err;
1823                 }
1824         }
1825         return 0;
1826 }
1827
1828 #ifdef CONFIG_PM_SLEEP
1829 static int ali_suspend(struct device *dev)
1830 {
1831         struct snd_card *card = dev_get_drvdata(dev);
1832         struct snd_ali *chip = card->private_data;
1833         struct snd_ali_image *im;
1834         int i, j;
1835
1836         im = chip->image;
1837         if (!im)
1838                 return 0;
1839
1840         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1841         for (i = 0; i < chip->num_of_codecs; i++)
1842                 snd_ac97_suspend(chip->ac97[i]);
1843
1844         spin_lock_irq(&chip->reg_lock);
1845
1846         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1847         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1848         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1849
1850         /* disable all IRQ bits */
1851         outl(0, ALI_REG(chip, ALI_MISCINT));
1852
1853         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1854                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1855                         continue;
1856                 im->regs[i] = inl(ALI_REG(chip, i*4));
1857         }
1858
1859         for (i = 0; i < ALI_CHANNELS; i++) {
1860                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1861                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1862                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1863         }
1864
1865         /* stop all HW channel */
1866         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1867
1868         spin_unlock_irq(&chip->reg_lock);
1869         return 0;
1870 }
1871
1872 static int ali_resume(struct device *dev)
1873 {
1874         struct snd_card *card = dev_get_drvdata(dev);
1875         struct snd_ali *chip = card->private_data;
1876         struct snd_ali_image *im;
1877         int i, j;
1878
1879         im = chip->image;
1880         if (!im)
1881                 return 0;
1882
1883         spin_lock_irq(&chip->reg_lock);
1884
1885         for (i = 0; i < ALI_CHANNELS; i++) {
1886                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1887                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1888                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1889         }
1890
1891         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1892                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1893                     (i*4 == ALI_START))
1894                         continue;
1895                 outl(im->regs[i], ALI_REG(chip, i*4));
1896         }
1897
1898         /* start HW channel */
1899         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1900         /* restore IRQ enable bits */
1901         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1902
1903         spin_unlock_irq(&chip->reg_lock);
1904
1905         for (i = 0 ; i < chip->num_of_codecs; i++)
1906                 snd_ac97_resume(chip->ac97[i]);
1907
1908         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1909         return 0;
1910 }
1911
1912 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1913 #define ALI_PM_OPS      &ali_pm
1914 #else
1915 #define ALI_PM_OPS      NULL
1916 #endif /* CONFIG_PM_SLEEP */
1917
1918 static int snd_ali_free(struct snd_ali * codec)
1919 {
1920         if (codec->hw_initialized)
1921                 snd_ali_disable_address_interrupt(codec);
1922         if (codec->irq >= 0)
1923                 free_irq(codec->irq, codec);
1924         if (codec->port)
1925                 pci_release_regions(codec->pci);
1926         pci_disable_device(codec->pci);
1927 #ifdef CONFIG_PM_SLEEP
1928         kfree(codec->image);
1929 #endif
1930         pci_dev_put(codec->pci_m1533);
1931         pci_dev_put(codec->pci_m7101);
1932         kfree(codec);
1933         return 0;
1934 }
1935
1936 static int snd_ali_chip_init(struct snd_ali *codec)
1937 {
1938         unsigned int legacy;
1939         unsigned char temp;
1940         struct pci_dev *pci_dev;
1941
1942         dev_dbg(codec->card->dev, "chip initializing ...\n");
1943
1944         if (snd_ali_reset_5451(codec)) {
1945                 dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1946                 return -1;
1947         }
1948
1949         if (codec->revision == ALI_5451_V02) {
1950                 pci_dev = codec->pci_m1533;
1951                 pci_read_config_byte(pci_dev, 0x59, &temp);
1952                 temp |= 0x80;
1953                 pci_write_config_byte(pci_dev, 0x59, temp);
1954
1955                 pci_dev = codec->pci_m7101;
1956                 pci_read_config_byte(pci_dev, 0xb8, &temp);
1957                 temp |= 0x20;
1958                 pci_write_config_byte(pci_dev, 0xB8, temp);
1959         }
1960
1961         pci_read_config_dword(codec->pci, 0x44, &legacy);
1962         legacy &= 0xff00ff00;
1963         legacy |= 0x000800aa;
1964         pci_write_config_dword(codec->pci, 0x44, legacy);
1965
1966         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
1967         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
1968         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
1969         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
1970         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
1971
1972         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
1973         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
1974                                                     AC97_EXTENDED_STATUS);
1975         if (codec->spdif_support) {
1976                 snd_ali_enable_spdif_out(codec);
1977                 codec->spdif_mask = 0x00000002;
1978         }
1979
1980         codec->num_of_codecs = 1;
1981
1982         /* secondary codec - modem */
1983         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
1984                 codec->num_of_codecs++;
1985                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
1986                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
1987                       ALI_SCTRL_LINE_OUT_EN),
1988                      ALI_REG(codec, ALI_SCTRL));
1989         }
1990
1991         dev_dbg(codec->card->dev, "chip initialize succeed.\n");
1992         return 0;
1993
1994 }
1995
1996 /* proc for register dump */
1997 static void snd_ali_proc_read(struct snd_info_entry *entry,
1998                               struct snd_info_buffer *buf)
1999 {
2000         struct snd_ali *codec = entry->private_data;
2001         int i;
2002         for (i = 0; i < 256 ; i+= 4)
2003                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2004 }
2005
2006 static void snd_ali_proc_init(struct snd_ali *codec)
2007 {
2008         snd_card_ro_proc_new(codec->card, "ali5451", codec, snd_ali_proc_read);
2009 }
2010
2011 static int snd_ali_resources(struct snd_ali *codec)
2012 {
2013         int err;
2014
2015         dev_dbg(codec->card->dev, "resources allocation ...\n");
2016         err = pci_request_regions(codec->pci, "ALI 5451");
2017         if (err < 0)
2018                 return err;
2019         codec->port = pci_resource_start(codec->pci, 0);
2020
2021         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2022                         IRQF_SHARED, KBUILD_MODNAME, codec)) {
2023                 dev_err(codec->card->dev, "Unable to request irq.\n");
2024                 return -EBUSY;
2025         }
2026         codec->irq = codec->pci->irq;
2027         codec->card->sync_irq = codec->irq;
2028         dev_dbg(codec->card->dev, "resources allocated.\n");
2029         return 0;
2030 }
2031 static int snd_ali_dev_free(struct snd_device *device)
2032 {
2033         struct snd_ali *codec = device->device_data;
2034         snd_ali_free(codec);
2035         return 0;
2036 }
2037
2038 static int snd_ali_create(struct snd_card *card,
2039                           struct pci_dev *pci,
2040                           int pcm_streams,
2041                           int spdif_support,
2042                           struct snd_ali **r_ali)
2043 {
2044         struct snd_ali *codec;
2045         int i, err;
2046         unsigned short cmdw;
2047         static const struct snd_device_ops ops = {
2048                 .dev_free = snd_ali_dev_free,
2049         };
2050
2051         *r_ali = NULL;
2052
2053         dev_dbg(card->dev, "creating ...\n");
2054
2055         /* enable PCI device */
2056         err = pci_enable_device(pci);
2057         if (err < 0)
2058                 return err;
2059         /* check, if we can restrict PCI DMA transfers to 31 bits */
2060         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(31)) < 0 ||
2061             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(31)) < 0) {
2062                 dev_err(card->dev,
2063                         "architecture does not support 31bit PCI busmaster DMA\n");
2064                 pci_disable_device(pci);
2065                 return -ENXIO;
2066         }
2067
2068         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2069         if (!codec) {
2070                 pci_disable_device(pci);
2071                 return -ENOMEM;
2072         }
2073
2074         spin_lock_init(&codec->reg_lock);
2075         spin_lock_init(&codec->voice_alloc);
2076
2077         codec->card = card;
2078         codec->pci = pci;
2079         codec->irq = -1;
2080         codec->revision = pci->revision;
2081         codec->spdif_support = spdif_support;
2082
2083         if (pcm_streams < 1)
2084                 pcm_streams = 1;
2085         if (pcm_streams > 32)
2086                 pcm_streams = 32;
2087
2088         pci_set_master(pci);
2089         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2090         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2091                 cmdw |= PCI_COMMAND_IO;
2092                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2093         }
2094         pci_set_master(pci);
2095
2096         if (snd_ali_resources(codec)) {
2097                 snd_ali_free(codec);
2098                 return -EBUSY;
2099         }
2100
2101         codec->synth.chmap = 0;
2102         codec->synth.chcnt = 0;
2103         codec->spdif_mask = 0;
2104         codec->synth.synthcount = 0;
2105
2106         if (codec->revision == ALI_5451_V02)
2107                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2108         else
2109                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2110         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2111
2112         codec->chregs.regs.start  = ALI_START;
2113         codec->chregs.regs.stop   = ALI_STOP;
2114         codec->chregs.regs.aint   = ALI_AINT;
2115         codec->chregs.regs.ainten = ALI_AINTEN;
2116
2117         codec->chregs.data.start  = 0x00;
2118         codec->chregs.data.stop   = 0x00;
2119         codec->chregs.data.aint   = 0x00;
2120         codec->chregs.data.ainten = 0x00;
2121
2122         /* M1533: southbridge */
2123         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2124         if (!codec->pci_m1533) {
2125                 dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2126                 snd_ali_free(codec);
2127                 return -ENODEV;
2128         }
2129         /* M7101: power management */
2130         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2131         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2132                 dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2133                 snd_ali_free(codec);
2134                 return -ENODEV;
2135         }
2136
2137         dev_dbg(card->dev, "snd_device_new is called.\n");
2138         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2139         if (err < 0) {
2140                 snd_ali_free(codec);
2141                 return err;
2142         }
2143
2144         /* initialise synth voices*/
2145         for (i = 0; i < ALI_CHANNELS; i++)
2146                 codec->synth.voices[i].number = i;
2147
2148         err = snd_ali_chip_init(codec);
2149         if (err < 0) {
2150                 dev_err(card->dev, "ali create: chip init error.\n");
2151                 return err;
2152         }
2153
2154 #ifdef CONFIG_PM_SLEEP
2155         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2156         if (!codec->image)
2157                 dev_warn(card->dev, "can't allocate apm buffer\n");
2158 #endif
2159
2160         snd_ali_enable_address_interrupt(codec);
2161         codec->hw_initialized = 1;
2162
2163         *r_ali = codec;
2164         dev_dbg(card->dev, "created.\n");
2165         return 0;
2166 }
2167
2168 static int snd_ali_probe(struct pci_dev *pci,
2169                          const struct pci_device_id *pci_id)
2170 {
2171         struct snd_card *card;
2172         struct snd_ali *codec;
2173         int err;
2174
2175         dev_dbg(&pci->dev, "probe ...\n");
2176
2177         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2178         if (err < 0)
2179                 return err;
2180
2181         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2182         if (err < 0)
2183                 goto error;
2184         card->private_data = codec;
2185
2186         dev_dbg(&pci->dev, "mixer building ...\n");
2187         err = snd_ali_mixer(codec);
2188         if (err < 0)
2189                 goto error;
2190
2191         dev_dbg(&pci->dev, "pcm building ...\n");
2192         err = snd_ali_build_pcms(codec);
2193         if (err < 0)
2194                 goto error;
2195
2196         snd_ali_proc_init(codec);
2197
2198         strcpy(card->driver, "ALI5451");
2199         strcpy(card->shortname, "ALI 5451");
2200
2201         sprintf(card->longname, "%s at 0x%lx, irq %i",
2202                 card->shortname, codec->port, codec->irq);
2203
2204         dev_dbg(&pci->dev, "register card.\n");
2205         err = snd_card_register(card);
2206         if (err < 0)
2207                 goto error;
2208
2209         pci_set_drvdata(pci, card);
2210         return 0;
2211
2212  error:
2213         snd_card_free(card);
2214         return err;
2215 }
2216
2217 static void snd_ali_remove(struct pci_dev *pci)
2218 {
2219         snd_card_free(pci_get_drvdata(pci));
2220 }
2221
2222 static struct pci_driver ali5451_driver = {
2223         .name = KBUILD_MODNAME,
2224         .id_table = snd_ali_ids,
2225         .probe = snd_ali_probe,
2226         .remove = snd_ali_remove,
2227         .driver = {
2228                 .pm = ALI_PM_OPS,
2229         },
2230 };
2231
2232 module_pci_driver(ali5451_driver);