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, capture_flag;
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 = capture_flag = 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                         if (pvoice->mode)
1114                                 capture_flag = 1;
1115                 }
1116         }
1117         spin_lock(&codec->reg_lock);
1118         if (!do_start)
1119                 outl(what, ALI_REG(codec, ALI_STOP));
1120         val = inl(ALI_REG(codec, ALI_AINTEN));
1121         if (do_start)
1122                 val |= whati;
1123         else
1124                 val &= ~whati;
1125         outl(val, ALI_REG(codec, ALI_AINTEN));
1126         if (do_start)
1127                 outl(what, ALI_REG(codec, ALI_START));
1128         dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1129         spin_unlock(&codec->reg_lock);
1130
1131         return 0;
1132 }
1133
1134 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1135                                       struct snd_pcm_hw_params *hw_params)
1136 {
1137         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1138         struct snd_pcm_runtime *runtime = substream->runtime;
1139         struct snd_ali_voice *pvoice = runtime->private_data;
1140         struct snd_ali_voice *evoice = pvoice->extra;
1141
1142         /* voice management */
1143
1144         if (params_buffer_size(hw_params) / 2 !=
1145             params_period_size(hw_params)) {
1146                 if (!evoice) {
1147                         evoice = snd_ali_alloc_voice(codec,
1148                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1149                                                      0, -1);
1150                         if (!evoice)
1151                                 return -ENOMEM;
1152                         pvoice->extra = evoice;
1153                         evoice->substream = substream;
1154                 }
1155         } else {
1156                 if (evoice) {
1157                         snd_ali_free_voice(codec, evoice);
1158                         pvoice->extra = evoice = NULL;
1159                 }
1160         }
1161
1162         return 0;
1163 }
1164
1165 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1166 {
1167         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1168         struct snd_pcm_runtime *runtime = substream->runtime;
1169         struct snd_ali_voice *pvoice = runtime->private_data;
1170         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1171
1172         if (evoice) {
1173                 snd_ali_free_voice(codec, evoice);
1174                 pvoice->extra = NULL;
1175         }
1176         return 0;
1177 }
1178
1179 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1180 {
1181         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1182         struct snd_pcm_runtime *runtime = substream->runtime;
1183         struct snd_ali_voice *pvoice = runtime->private_data;
1184         struct snd_ali_voice *evoice = pvoice->extra;
1185
1186         unsigned int LBA;
1187         unsigned int Delta;
1188         unsigned int ESO;
1189         unsigned int CTRL;
1190         unsigned int GVSEL;
1191         unsigned int PAN;
1192         unsigned int VOL;
1193         unsigned int EC;
1194
1195         dev_dbg(codec->card->dev, "playback_prepare ...\n");
1196
1197         spin_lock_irq(&codec->reg_lock);
1198
1199         /* set Delta (rate) value */
1200         Delta = snd_ali_convert_rate(runtime->rate, 0);
1201
1202         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1203             pvoice->number == ALI_PCM_IN_CHANNEL)
1204                 snd_ali_disable_special_channel(codec, pvoice->number);
1205         else if (codec->spdif_support &&
1206                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1207                   ALI_SPDIF_OUT_CH_ENABLE)
1208                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1209                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1210                 Delta = 0x1000;
1211         }
1212
1213         /* set Loop Back Address */
1214         LBA = runtime->dma_addr;
1215
1216         /* set interrupt count size */
1217         pvoice->count = runtime->period_size;
1218
1219         /* set target ESO for channel */
1220         pvoice->eso = runtime->buffer_size;
1221
1222         dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1223                        pvoice->eso, pvoice->count);
1224
1225         /* set ESO to capture first MIDLP interrupt */
1226         ESO = pvoice->eso -1;
1227         /* set ctrl mode */
1228         CTRL = snd_ali_control_mode(substream);
1229
1230         GVSEL = 1;
1231         PAN = 0;
1232         VOL = 0;
1233         EC = 0;
1234         dev_dbg(codec->card->dev, "playback_prepare:\n");
1235         dev_dbg(codec->card->dev,
1236                 "ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1237                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1238         snd_ali_write_voice_regs(codec,
1239                                  pvoice->number,
1240                                  LBA,
1241                                  0,     /* cso */
1242                                  ESO,
1243                                  Delta,
1244                                  0,     /* alpha */
1245                                  GVSEL,
1246                                  PAN,
1247                                  VOL,
1248                                  CTRL,
1249                                  EC);
1250         if (evoice) {
1251                 evoice->count = pvoice->count;
1252                 evoice->eso = pvoice->count << 1;
1253                 ESO = evoice->eso - 1;
1254                 snd_ali_write_voice_regs(codec,
1255                                          evoice->number,
1256                                          LBA,
1257                                          0,     /* cso */
1258                                          ESO,
1259                                          Delta,
1260                                          0,     /* alpha */
1261                                          GVSEL,
1262                                          0x7f,
1263                                          0x3ff,
1264                                          CTRL,
1265                                          EC);
1266         }
1267         spin_unlock_irq(&codec->reg_lock);
1268         return 0;
1269 }
1270
1271
1272 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1273 {
1274         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1275         struct snd_pcm_runtime *runtime = substream->runtime;
1276         struct snd_ali_voice *pvoice = runtime->private_data;
1277         unsigned int LBA;
1278         unsigned int Delta;
1279         unsigned int ESO;
1280         unsigned int CTRL;
1281         unsigned int GVSEL;
1282         unsigned int PAN;
1283         unsigned int VOL;
1284         unsigned int EC;
1285         u8       bValue;
1286
1287         spin_lock_irq(&codec->reg_lock);
1288
1289         dev_dbg(codec->card->dev, "ali_prepare...\n");
1290
1291         snd_ali_enable_special_channel(codec,pvoice->number);
1292
1293         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1294                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1295                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1296
1297         /* Prepare capture intr channel */
1298         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1299
1300                 unsigned int rate;
1301
1302                 spin_unlock_irq(&codec->reg_lock);
1303                 if (codec->revision != ALI_5451_V02)
1304                         return -1;
1305
1306                 rate = snd_ali_get_spdif_in_rate(codec);
1307                 if (rate == 0) {
1308                         dev_warn(codec->card->dev,
1309                                  "ali_capture_prepare: spdif rate detect err!\n");
1310                         rate = 48000;
1311                 }
1312                 spin_lock_irq(&codec->reg_lock);
1313                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1314                 if (bValue & 0x10) {
1315                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1316                         dev_warn(codec->card->dev,
1317                                  "clear SPDIF parity error flag.\n");
1318                 }
1319
1320                 if (rate != 48000)
1321                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1322         }
1323
1324         /* set target ESO for channel  */
1325         pvoice->eso = runtime->buffer_size;
1326
1327         /* set interrupt count size  */
1328         pvoice->count = runtime->period_size;
1329
1330         /* set Loop Back Address  */
1331         LBA = runtime->dma_addr;
1332
1333         /* set ESO to capture first MIDLP interrupt  */
1334         ESO = pvoice->eso - 1;
1335         CTRL = snd_ali_control_mode(substream);
1336         GVSEL = 0;
1337         PAN = 0x00;
1338         VOL = 0x00;
1339         EC = 0;
1340
1341         snd_ali_write_voice_regs(    codec,
1342                                      pvoice->number,
1343                                      LBA,
1344                                      0, /* cso */
1345                                      ESO,
1346                                      Delta,
1347                                      0, /* alpha */
1348                                      GVSEL,
1349                                      PAN,
1350                                      VOL,
1351                                      CTRL,
1352                                      EC);
1353
1354         spin_unlock_irq(&codec->reg_lock);
1355
1356         return 0;
1357 }
1358
1359
1360 static snd_pcm_uframes_t
1361 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1362 {
1363         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1364         struct snd_pcm_runtime *runtime = substream->runtime;
1365         struct snd_ali_voice *pvoice = runtime->private_data;
1366         unsigned int cso;
1367
1368         spin_lock(&codec->reg_lock);
1369         if (!pvoice->running) {
1370                 spin_unlock(&codec->reg_lock);
1371                 return 0;
1372         }
1373         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1374         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1375         spin_unlock(&codec->reg_lock);
1376         dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1377
1378         cso %= runtime->buffer_size;
1379         return cso;
1380 }
1381
1382
1383 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1384 {
1385         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1386         struct snd_pcm_runtime *runtime = substream->runtime;
1387         struct snd_ali_voice *pvoice = runtime->private_data;
1388         unsigned int cso;
1389
1390         spin_lock(&codec->reg_lock);
1391         if (!pvoice->running) {
1392                 spin_unlock(&codec->reg_lock);
1393                 return 0;
1394         }
1395         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1396         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1397         spin_unlock(&codec->reg_lock);
1398
1399         cso %= runtime->buffer_size;
1400         return cso;
1401 }
1402
1403 static struct snd_pcm_hardware snd_ali_playback =
1404 {
1405         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1406                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1407                          SNDRV_PCM_INFO_MMAP_VALID |
1408                          SNDRV_PCM_INFO_RESUME |
1409                          SNDRV_PCM_INFO_SYNC_START),
1410         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1411                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1412         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1413         .rate_min =             4000,
1414         .rate_max =             48000,
1415         .channels_min =         1,
1416         .channels_max =         2,
1417         .buffer_bytes_max =     (256*1024),
1418         .period_bytes_min =     64,
1419         .period_bytes_max =     (256*1024),
1420         .periods_min =          1,
1421         .periods_max =          1024,
1422         .fifo_size =            0,
1423 };
1424
1425 /*
1426  *  Capture support device description
1427  */
1428
1429 static struct snd_pcm_hardware snd_ali_capture =
1430 {
1431         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1432                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1433                          SNDRV_PCM_INFO_MMAP_VALID |
1434                          SNDRV_PCM_INFO_RESUME |
1435                          SNDRV_PCM_INFO_SYNC_START),
1436         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1437                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1438         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1439         .rate_min =             4000,
1440         .rate_max =             48000,
1441         .channels_min =         1,
1442         .channels_max =         2,
1443         .buffer_bytes_max =     (128*1024),
1444         .period_bytes_min =     64,
1445         .period_bytes_max =     (128*1024),
1446         .periods_min =          1,
1447         .periods_max =          1024,
1448         .fifo_size =            0,
1449 };
1450
1451 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1452 {
1453         struct snd_ali_voice *pvoice = runtime->private_data;
1454
1455         if (pvoice)
1456                 snd_ali_free_voice(pvoice->codec, pvoice);
1457 }
1458
1459 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1460                         int channel, struct snd_pcm_hardware *phw)
1461 {
1462         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1463         struct snd_pcm_runtime *runtime = substream->runtime;
1464         struct snd_ali_voice *pvoice;
1465
1466         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1467                                      channel);
1468         if (!pvoice)
1469                 return -EAGAIN;
1470
1471         pvoice->substream = substream;
1472         runtime->private_data = pvoice;
1473         runtime->private_free = snd_ali_pcm_free_substream;
1474
1475         runtime->hw = *phw;
1476         snd_pcm_set_sync(substream);
1477         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1478                                      0, 64*1024);
1479         return 0;
1480 }
1481
1482 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1483 {
1484         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1485 }
1486
1487 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1488 {
1489         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1490 }
1491
1492 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1493 {
1494         return 0;
1495 }
1496
1497 static int snd_ali_close(struct snd_pcm_substream *substream)
1498 {
1499         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1500         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1501
1502         snd_ali_disable_special_channel(codec,pvoice->number);
1503
1504         return 0;
1505 }
1506
1507 static const struct snd_pcm_ops snd_ali_playback_ops = {
1508         .open =         snd_ali_playback_open,
1509         .close =        snd_ali_playback_close,
1510         .hw_params =    snd_ali_playback_hw_params,
1511         .hw_free =      snd_ali_playback_hw_free,
1512         .prepare =      snd_ali_playback_prepare,
1513         .trigger =      snd_ali_trigger,
1514         .pointer =      snd_ali_playback_pointer,
1515 };
1516
1517 static const struct snd_pcm_ops snd_ali_capture_ops = {
1518         .open =         snd_ali_capture_open,
1519         .close =        snd_ali_close,
1520         .prepare =      snd_ali_prepare,
1521         .trigger =      snd_ali_trigger,
1522         .pointer =      snd_ali_pointer,
1523 };
1524
1525 /*
1526  * Modem PCM
1527  */
1528
1529 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1530                                  struct snd_pcm_hw_params *hw_params)
1531 {
1532         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1533         unsigned int modem_num = chip->num_of_codecs - 1;
1534         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1535                        params_rate(hw_params));
1536         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1537         return 0;
1538 }
1539
1540 static struct snd_pcm_hardware snd_ali_modem =
1541 {
1542         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1543                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1544                          SNDRV_PCM_INFO_MMAP_VALID |
1545                          SNDRV_PCM_INFO_RESUME |
1546                          SNDRV_PCM_INFO_SYNC_START),
1547         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1548         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1549                          SNDRV_PCM_RATE_16000),
1550         .rate_min =             8000,
1551         .rate_max =             16000,
1552         .channels_min =         1,
1553         .channels_max =         1,
1554         .buffer_bytes_max =     (256*1024),
1555         .period_bytes_min =     64,
1556         .period_bytes_max =     (256*1024),
1557         .periods_min =          1,
1558         .periods_max =          1024,
1559         .fifo_size =            0,
1560 };
1561
1562 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1563                               int channel)
1564 {
1565         static const unsigned int rates[] = {8000, 9600, 12000, 16000};
1566         static const struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1567                 .count = ARRAY_SIZE(rates),
1568                 .list = rates,
1569                 .mask = 0,
1570         };
1571         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1572
1573         if (err)
1574                 return err;
1575         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1576                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1577 }
1578
1579 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1580 {
1581         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1582 }
1583
1584 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1585 {
1586         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1587 }
1588
1589 static const struct snd_pcm_ops snd_ali_modem_playback_ops = {
1590         .open =         snd_ali_modem_playback_open,
1591         .close =        snd_ali_close,
1592         .hw_params =    snd_ali_modem_hw_params,
1593         .prepare =      snd_ali_prepare,
1594         .trigger =      snd_ali_trigger,
1595         .pointer =      snd_ali_pointer,
1596 };
1597
1598 static const struct snd_pcm_ops snd_ali_modem_capture_ops = {
1599         .open =         snd_ali_modem_capture_open,
1600         .close =        snd_ali_close,
1601         .hw_params =    snd_ali_modem_hw_params,
1602         .prepare =      snd_ali_prepare,
1603         .trigger =      snd_ali_trigger,
1604         .pointer =      snd_ali_pointer,
1605 };
1606
1607
1608 struct ali_pcm_description {
1609         char *name;
1610         unsigned int playback_num;
1611         unsigned int capture_num;
1612         const struct snd_pcm_ops *playback_ops;
1613         const struct snd_pcm_ops *capture_ops;
1614         unsigned short class;
1615 };
1616
1617
1618 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1619 {
1620         struct snd_ali *codec = pcm->private_data;
1621         codec->pcm[pcm->device] = NULL;
1622 }
1623
1624
1625 static int snd_ali_pcm(struct snd_ali *codec, int device,
1626                        struct ali_pcm_description *desc)
1627 {
1628         struct snd_pcm *pcm;
1629         int err;
1630
1631         err = snd_pcm_new(codec->card, desc->name, device,
1632                           desc->playback_num, desc->capture_num, &pcm);
1633         if (err < 0) {
1634                 dev_err(codec->card->dev,
1635                         "snd_ali_pcm: err called snd_pcm_new.\n");
1636                 return err;
1637         }
1638         pcm->private_data = codec;
1639         pcm->private_free = snd_ali_pcm_free;
1640         if (desc->playback_ops)
1641                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1642                                 desc->playback_ops);
1643         if (desc->capture_ops)
1644                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1645                                 desc->capture_ops);
1646
1647         snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
1648                                        &codec->pci->dev, 64*1024, 128*1024);
1649
1650         pcm->info_flags = 0;
1651         pcm->dev_class = desc->class;
1652         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1653         strcpy(pcm->name, desc->name);
1654         codec->pcm[0] = pcm;
1655         return 0;
1656 }
1657
1658 static struct ali_pcm_description ali_pcms[] = {
1659         { .name = "ALI 5451",
1660           .playback_num = ALI_CHANNELS,
1661           .capture_num = 1,
1662           .playback_ops = &snd_ali_playback_ops,
1663           .capture_ops = &snd_ali_capture_ops
1664         },
1665         { .name = "ALI 5451 modem",
1666           .playback_num = 1,
1667           .capture_num = 1,
1668           .playback_ops = &snd_ali_modem_playback_ops,
1669           .capture_ops = &snd_ali_modem_capture_ops,
1670           .class = SNDRV_PCM_CLASS_MODEM
1671         }
1672 };
1673
1674 static int snd_ali_build_pcms(struct snd_ali *codec)
1675 {
1676         int i, err;
1677         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1678                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1679                 if (err < 0)
1680                         return err;
1681         }
1682         return 0;
1683 }
1684
1685
1686 #define ALI5451_SPDIF(xname, xindex, value) \
1687 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1688 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1689 .put = snd_ali5451_spdif_put, .private_value = value}
1690
1691 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1692
1693 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1694                                  struct snd_ctl_elem_value *ucontrol)
1695 {
1696         struct snd_ali *codec = kcontrol->private_data;
1697         unsigned int spdif_enable;
1698
1699         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1700
1701         spin_lock_irq(&codec->reg_lock);
1702         switch (kcontrol->private_value) {
1703         case 0:
1704                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1705                 break;
1706         case 1:
1707                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1708                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1709                 break;
1710         case 2:
1711                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1712                 break;
1713         default:
1714                 break;
1715         }
1716         ucontrol->value.integer.value[0] = spdif_enable;
1717         spin_unlock_irq(&codec->reg_lock);
1718         return 0;
1719 }
1720
1721 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1722                                  struct snd_ctl_elem_value *ucontrol)
1723 {
1724         struct snd_ali *codec = kcontrol->private_data;
1725         unsigned int change = 0, spdif_enable = 0;
1726
1727         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1728
1729         spin_lock_irq(&codec->reg_lock);
1730         switch (kcontrol->private_value) {
1731         case 0:
1732                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1733                 change = change ^ spdif_enable;
1734                 if (change) {
1735                         if (spdif_enable) {
1736                                 codec->spdif_mask |= 0x02;
1737                                 snd_ali_enable_spdif_out(codec);
1738                         } else {
1739                                 codec->spdif_mask &= ~(0x02);
1740                                 codec->spdif_mask &= ~(0x04);
1741                                 snd_ali_disable_spdif_out(codec);
1742                         }
1743                 }
1744                 break;
1745         case 1:
1746                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1747                 change = change ^ spdif_enable;
1748                 if (change && (codec->spdif_mask & 0x02)) {
1749                         if (spdif_enable) {
1750                                 codec->spdif_mask |= 0x04;
1751                                 snd_ali_enable_spdif_chnout(codec);
1752                         } else {
1753                                 codec->spdif_mask &= ~(0x04);
1754                                 snd_ali_disable_spdif_chnout(codec);
1755                         }
1756                 }
1757                 break;
1758         case 2:
1759                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1760                 change = change ^ spdif_enable;
1761                 if (change) {
1762                         if (spdif_enable) {
1763                                 codec->spdif_mask |= 0x01;
1764                                 snd_ali_enable_spdif_in(codec);
1765                         } else {
1766                                 codec->spdif_mask &= ~(0x01);
1767                                 snd_ali_disable_spdif_in(codec);
1768                         }
1769                 }
1770                 break;
1771         default:
1772                 break;
1773         }
1774         spin_unlock_irq(&codec->reg_lock);
1775
1776         return change;
1777 }
1778
1779 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1780         /* spdif aplayback switch */
1781         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1782         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1783         /* spdif out to spdif channel */
1784         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1785         /* spdif in from spdif channel */
1786         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1787 };
1788
1789 static int snd_ali_mixer(struct snd_ali *codec)
1790 {
1791         struct snd_ac97_template ac97;
1792         unsigned int idx;
1793         int i, err;
1794         static struct snd_ac97_bus_ops ops = {
1795                 .write = snd_ali_codec_write,
1796                 .read = snd_ali_codec_read,
1797         };
1798
1799         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1800         if (err < 0)
1801                 return err;
1802
1803         memset(&ac97, 0, sizeof(ac97));
1804         ac97.private_data = codec;
1805
1806         for (i = 0; i < codec->num_of_codecs; i++) {
1807                 ac97.num = i;
1808                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1809                 if (err < 0) {
1810                         dev_err(codec->card->dev,
1811                                    "ali mixer %d creating error.\n", i);
1812                         if (i == 0)
1813                                 return err;
1814                         codec->num_of_codecs = 1;
1815                         break;
1816                 }
1817         }
1818
1819         if (codec->spdif_support) {
1820                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1821                         err = snd_ctl_add(codec->card,
1822                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1823                         if (err < 0)
1824                                 return err;
1825                 }
1826         }
1827         return 0;
1828 }
1829
1830 #ifdef CONFIG_PM_SLEEP
1831 static int ali_suspend(struct device *dev)
1832 {
1833         struct snd_card *card = dev_get_drvdata(dev);
1834         struct snd_ali *chip = card->private_data;
1835         struct snd_ali_image *im;
1836         int i, j;
1837
1838         im = chip->image;
1839         if (!im)
1840                 return 0;
1841
1842         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1843         for (i = 0; i < chip->num_of_codecs; i++)
1844                 snd_ac97_suspend(chip->ac97[i]);
1845
1846         spin_lock_irq(&chip->reg_lock);
1847
1848         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1849         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1850         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1851
1852         /* disable all IRQ bits */
1853         outl(0, ALI_REG(chip, ALI_MISCINT));
1854
1855         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1856                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1857                         continue;
1858                 im->regs[i] = inl(ALI_REG(chip, i*4));
1859         }
1860
1861         for (i = 0; i < ALI_CHANNELS; i++) {
1862                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1863                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1864                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1865         }
1866
1867         /* stop all HW channel */
1868         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1869
1870         spin_unlock_irq(&chip->reg_lock);
1871         return 0;
1872 }
1873
1874 static int ali_resume(struct device *dev)
1875 {
1876         struct snd_card *card = dev_get_drvdata(dev);
1877         struct snd_ali *chip = card->private_data;
1878         struct snd_ali_image *im;
1879         int i, j;
1880
1881         im = chip->image;
1882         if (!im)
1883                 return 0;
1884
1885         spin_lock_irq(&chip->reg_lock);
1886
1887         for (i = 0; i < ALI_CHANNELS; i++) {
1888                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1889                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1890                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1891         }
1892
1893         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1894                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1895                     (i*4 == ALI_START))
1896                         continue;
1897                 outl(im->regs[i], ALI_REG(chip, i*4));
1898         }
1899
1900         /* start HW channel */
1901         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1902         /* restore IRQ enable bits */
1903         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1904
1905         spin_unlock_irq(&chip->reg_lock);
1906
1907         for (i = 0 ; i < chip->num_of_codecs; i++)
1908                 snd_ac97_resume(chip->ac97[i]);
1909
1910         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1911         return 0;
1912 }
1913
1914 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1915 #define ALI_PM_OPS      &ali_pm
1916 #else
1917 #define ALI_PM_OPS      NULL
1918 #endif /* CONFIG_PM_SLEEP */
1919
1920 static int snd_ali_free(struct snd_ali * codec)
1921 {
1922         if (codec->hw_initialized)
1923                 snd_ali_disable_address_interrupt(codec);
1924         if (codec->irq >= 0)
1925                 free_irq(codec->irq, codec);
1926         if (codec->port)
1927                 pci_release_regions(codec->pci);
1928         pci_disable_device(codec->pci);
1929 #ifdef CONFIG_PM_SLEEP
1930         kfree(codec->image);
1931 #endif
1932         pci_dev_put(codec->pci_m1533);
1933         pci_dev_put(codec->pci_m7101);
1934         kfree(codec);
1935         return 0;
1936 }
1937
1938 static int snd_ali_chip_init(struct snd_ali *codec)
1939 {
1940         unsigned int legacy;
1941         unsigned char temp;
1942         struct pci_dev *pci_dev;
1943
1944         dev_dbg(codec->card->dev, "chip initializing ...\n");
1945
1946         if (snd_ali_reset_5451(codec)) {
1947                 dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1948                 return -1;
1949         }
1950
1951         if (codec->revision == ALI_5451_V02) {
1952                 pci_dev = codec->pci_m1533;
1953                 pci_read_config_byte(pci_dev, 0x59, &temp);
1954                 temp |= 0x80;
1955                 pci_write_config_byte(pci_dev, 0x59, temp);
1956
1957                 pci_dev = codec->pci_m7101;
1958                 pci_read_config_byte(pci_dev, 0xb8, &temp);
1959                 temp |= 0x20;
1960                 pci_write_config_byte(pci_dev, 0xB8, temp);
1961         }
1962
1963         pci_read_config_dword(codec->pci, 0x44, &legacy);
1964         legacy &= 0xff00ff00;
1965         legacy |= 0x000800aa;
1966         pci_write_config_dword(codec->pci, 0x44, legacy);
1967
1968         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
1969         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
1970         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
1971         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
1972         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
1973
1974         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
1975         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
1976                                                     AC97_EXTENDED_STATUS);
1977         if (codec->spdif_support) {
1978                 snd_ali_enable_spdif_out(codec);
1979                 codec->spdif_mask = 0x00000002;
1980         }
1981
1982         codec->num_of_codecs = 1;
1983
1984         /* secondary codec - modem */
1985         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
1986                 codec->num_of_codecs++;
1987                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
1988                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
1989                       ALI_SCTRL_LINE_OUT_EN),
1990                      ALI_REG(codec, ALI_SCTRL));
1991         }
1992
1993         dev_dbg(codec->card->dev, "chip initialize succeed.\n");
1994         return 0;
1995
1996 }
1997
1998 /* proc for register dump */
1999 static void snd_ali_proc_read(struct snd_info_entry *entry,
2000                               struct snd_info_buffer *buf)
2001 {
2002         struct snd_ali *codec = entry->private_data;
2003         int i;
2004         for (i = 0; i < 256 ; i+= 4)
2005                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2006 }
2007
2008 static void snd_ali_proc_init(struct snd_ali *codec)
2009 {
2010         snd_card_ro_proc_new(codec->card, "ali5451", codec, snd_ali_proc_read);
2011 }
2012
2013 static int snd_ali_resources(struct snd_ali *codec)
2014 {
2015         int err;
2016
2017         dev_dbg(codec->card->dev, "resources allocation ...\n");
2018         err = pci_request_regions(codec->pci, "ALI 5451");
2019         if (err < 0)
2020                 return err;
2021         codec->port = pci_resource_start(codec->pci, 0);
2022
2023         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2024                         IRQF_SHARED, KBUILD_MODNAME, codec)) {
2025                 dev_err(codec->card->dev, "Unable to request irq.\n");
2026                 return -EBUSY;
2027         }
2028         codec->irq = codec->pci->irq;
2029         codec->card->sync_irq = codec->irq;
2030         dev_dbg(codec->card->dev, "resources allocated.\n");
2031         return 0;
2032 }
2033 static int snd_ali_dev_free(struct snd_device *device)
2034 {
2035         struct snd_ali *codec = device->device_data;
2036         snd_ali_free(codec);
2037         return 0;
2038 }
2039
2040 static int snd_ali_create(struct snd_card *card,
2041                           struct pci_dev *pci,
2042                           int pcm_streams,
2043                           int spdif_support,
2044                           struct snd_ali **r_ali)
2045 {
2046         struct snd_ali *codec;
2047         int i, err;
2048         unsigned short cmdw;
2049         static struct snd_device_ops ops = {
2050                 .dev_free = snd_ali_dev_free,
2051         };
2052
2053         *r_ali = NULL;
2054
2055         dev_dbg(card->dev, "creating ...\n");
2056
2057         /* enable PCI device */
2058         err = pci_enable_device(pci);
2059         if (err < 0)
2060                 return err;
2061         /* check, if we can restrict PCI DMA transfers to 31 bits */
2062         if (dma_set_mask(&pci->dev, DMA_BIT_MASK(31)) < 0 ||
2063             dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(31)) < 0) {
2064                 dev_err(card->dev,
2065                         "architecture does not support 31bit PCI busmaster DMA\n");
2066                 pci_disable_device(pci);
2067                 return -ENXIO;
2068         }
2069
2070         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2071         if (!codec) {
2072                 pci_disable_device(pci);
2073                 return -ENOMEM;
2074         }
2075
2076         spin_lock_init(&codec->reg_lock);
2077         spin_lock_init(&codec->voice_alloc);
2078
2079         codec->card = card;
2080         codec->pci = pci;
2081         codec->irq = -1;
2082         codec->revision = pci->revision;
2083         codec->spdif_support = spdif_support;
2084
2085         if (pcm_streams < 1)
2086                 pcm_streams = 1;
2087         if (pcm_streams > 32)
2088                 pcm_streams = 32;
2089
2090         pci_set_master(pci);
2091         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2092         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2093                 cmdw |= PCI_COMMAND_IO;
2094                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2095         }
2096         pci_set_master(pci);
2097
2098         if (snd_ali_resources(codec)) {
2099                 snd_ali_free(codec);
2100                 return -EBUSY;
2101         }
2102
2103         codec->synth.chmap = 0;
2104         codec->synth.chcnt = 0;
2105         codec->spdif_mask = 0;
2106         codec->synth.synthcount = 0;
2107
2108         if (codec->revision == ALI_5451_V02)
2109                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2110         else
2111                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2112         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2113
2114         codec->chregs.regs.start  = ALI_START;
2115         codec->chregs.regs.stop   = ALI_STOP;
2116         codec->chregs.regs.aint   = ALI_AINT;
2117         codec->chregs.regs.ainten = ALI_AINTEN;
2118
2119         codec->chregs.data.start  = 0x00;
2120         codec->chregs.data.stop   = 0x00;
2121         codec->chregs.data.aint   = 0x00;
2122         codec->chregs.data.ainten = 0x00;
2123
2124         /* M1533: southbridge */
2125         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2126         if (!codec->pci_m1533) {
2127                 dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2128                 snd_ali_free(codec);
2129                 return -ENODEV;
2130         }
2131         /* M7101: power management */
2132         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2133         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2134                 dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2135                 snd_ali_free(codec);
2136                 return -ENODEV;
2137         }
2138
2139         dev_dbg(card->dev, "snd_device_new is called.\n");
2140         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2141         if (err < 0) {
2142                 snd_ali_free(codec);
2143                 return err;
2144         }
2145
2146         /* initialise synth voices*/
2147         for (i = 0; i < ALI_CHANNELS; i++)
2148                 codec->synth.voices[i].number = i;
2149
2150         err = snd_ali_chip_init(codec);
2151         if (err < 0) {
2152                 dev_err(card->dev, "ali create: chip init error.\n");
2153                 return err;
2154         }
2155
2156 #ifdef CONFIG_PM_SLEEP
2157         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2158         if (!codec->image)
2159                 dev_warn(card->dev, "can't allocate apm buffer\n");
2160 #endif
2161
2162         snd_ali_enable_address_interrupt(codec);
2163         codec->hw_initialized = 1;
2164
2165         *r_ali = codec;
2166         dev_dbg(card->dev, "created.\n");
2167         return 0;
2168 }
2169
2170 static int snd_ali_probe(struct pci_dev *pci,
2171                          const struct pci_device_id *pci_id)
2172 {
2173         struct snd_card *card;
2174         struct snd_ali *codec;
2175         int err;
2176
2177         dev_dbg(&pci->dev, "probe ...\n");
2178
2179         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2180         if (err < 0)
2181                 return err;
2182
2183         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2184         if (err < 0)
2185                 goto error;
2186         card->private_data = codec;
2187
2188         dev_dbg(&pci->dev, "mixer building ...\n");
2189         err = snd_ali_mixer(codec);
2190         if (err < 0)
2191                 goto error;
2192
2193         dev_dbg(&pci->dev, "pcm building ...\n");
2194         err = snd_ali_build_pcms(codec);
2195         if (err < 0)
2196                 goto error;
2197
2198         snd_ali_proc_init(codec);
2199
2200         strcpy(card->driver, "ALI5451");
2201         strcpy(card->shortname, "ALI 5451");
2202
2203         sprintf(card->longname, "%s at 0x%lx, irq %i",
2204                 card->shortname, codec->port, codec->irq);
2205
2206         dev_dbg(&pci->dev, "register card.\n");
2207         err = snd_card_register(card);
2208         if (err < 0)
2209                 goto error;
2210
2211         pci_set_drvdata(pci, card);
2212         return 0;
2213
2214  error:
2215         snd_card_free(card);
2216         return err;
2217 }
2218
2219 static void snd_ali_remove(struct pci_dev *pci)
2220 {
2221         snd_card_free(pci_get_drvdata(pci));
2222 }
2223
2224 static struct pci_driver ali5451_driver = {
2225         .name = KBUILD_MODNAME,
2226         .id_table = snd_ali_ids,
2227         .probe = snd_ali_probe,
2228         .remove = snd_ali_remove,
2229         .driver = {
2230                 .pm = ALI_PM_OPS,
2231         },
2232 };
2233
2234 module_pci_driver(ali5451_driver);