sound/pci/ali5451/ali5451.c

   1 /*
   2  *  Matt Wu <Matt_Wu@acersoftech.com.cn>
   3  *  Apr 26, 2001
   4  *  Routines for control of ALi pci audio M5451
   5  *
   6  *  BUGS:
   7  *    --
   8  *
   9  *  TODO:
  10  *    --
  11  *
  12  *   This program is free software; you can redistribute it and/or modify
  13  *   it under the terms of the GNU General Public Lcodecnse as published by
  14  *   the Free Software Foundation; either version 2 of the Lcodecnse, or
  15  *   (at your option) any later version.
  16  *
  17  *   This program is distributed in the hope that it will be useful,
  18  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *   GNU General Public Lcodecnse for more details.
  21  *
  22  *   You should have received a copy of the GNU General Public Lcodecnse
  23  *   along with this program; if not, write to the Free Software
  24  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  25  *
  26  */
  27
  28 #include <asm/io.h>
  29 #include <linux/delay.h>
  30 #include <linux/interrupt.h>
  31 #include <linux/init.h>
  32 #include <linux/pci.h>
  33 #include <linux/slab.h>
  34 #include <linux/module.h>
  35 #include <linux/dma-mapping.h>
  36 #include <sound/core.h>
  37 #include <sound/pcm.h>
  38 #include <sound/info.h>
  39 #include <sound/ac97_codec.h>
  40 #include <sound/mpu401.h>
  41 #include <sound/initval.h>
  42
  43 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
  44 MODULE_DESCRIPTION("ALI M5451");
  45 MODULE_LICENSE("GPL");
  46 MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
  47
  48 static int index = SNDRV_DEFAULT_IDX1;  /* Index */
  49 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  50 static int pcm_channels = 32;
  51 static int spdif;
  52
  53 module_param(index, int, 0444);
  54 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  55 module_param(id, charp, 0444);
  56 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  57 module_param(pcm_channels, int, 0444);
  58 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  59 module_param(spdif, bool, 0444);
  60 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  61
  62 /* just for backward compatibility */
  63 static int enable;
  64 module_param(enable, bool, 0444);
  65
  66
  67 /*
  68  *  Debug part definitions
  69  */
  70
  71 /* #define ALI_DEBUG */
  72
  73 #ifdef ALI_DEBUG
  74 #define snd_ali_printk(format, args...) printk(KERN_DEBUG format, ##args);
  75 #else
  76 #define snd_ali_printk(format, args...)
  77 #endif
  78
  79 /*
  80  *  Constants definition
  81  */
  82
  83 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  84
  85
  86 #define ALI_CHANNELS            32
  87
  88 #define ALI_PCM_IN_CHANNEL      31
  89 #define ALI_SPDIF_IN_CHANNEL    19
  90 #define ALI_SPDIF_OUT_CHANNEL   15
  91 #define ALI_CENTER_CHANNEL      24
  92 #define ALI_LEF_CHANNEL         23
  93 #define ALI_SURR_LEFT_CHANNEL   26
  94 #define ALI_SURR_RIGHT_CHANNEL  25
  95 #define ALI_MODEM_IN_CHANNEL    21
  96 #define ALI_MODEM_OUT_CHANNEL   20
  97
  98 #define SNDRV_ALI_VOICE_TYPE_PCM        01
  99 #define SNDRV_ALI_VOICE_TYPE_OTH        02
 100
 101 #define ALI_5451_V02            0x02
 102
 103 /*
 104  *  Direct Registers
 105  */
 106
 107 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
 108 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
 109 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
 110 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
 111 #define ALI_MPUR0               0x20
 112 #define ALI_MPUR1               0x21
 113 #define ALI_MPUR2               0x22
 114 #define ALI_MPUR3               0x23
 115
 116 #define ALI_AC97_WRITE          0x40
 117 #define ALI_AC97_READ           0x44
 118
 119 #define ALI_SCTRL               0x48
 120 #define   ALI_SPDIF_OUT_ENABLE          0x20
 121 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
 122 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
 123 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
 124 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
 125 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
 126 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 127 #define ALI_AC97_GPIO           0x4c
 128 #define   ALI_AC97_GPIO_ENABLE          0x8000
 129 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 130 #define ALI_SPDIF_CS            0x70
 131 #define ALI_SPDIF_CTRL          0x74
 132 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 133 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 134 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 135 #define ALI_START               0x80
 136 #define ALI_STOP                0x84
 137 #define ALI_CSPF                0x90
 138 #define ALI_AINT                0x98
 139 #define ALI_GC_CIR              0xa0
 140         #define ENDLP_IE                0x00001000
 141         #define MIDLP_IE                0x00002000
 142 #define ALI_AINTEN              0xa4
 143 #define ALI_VOLUME              0xa8
 144 #define ALI_SBDELTA_DELTA_R     0xac
 145 #define ALI_MISCINT             0xb0
 146         #define ADDRESS_IRQ             0x00000020
 147         #define TARGET_REACHED          0x00008000
 148         #define MIXER_OVERFLOW          0x00000800
 149         #define MIXER_UNDERFLOW         0x00000400
 150         #define GPIO_IRQ                0x01000000
 151 #define ALI_SBBL_SBCL           0xc0
 152 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 153 #define ALI_STIMER              0xc8
 154 #define ALI_GLOBAL_CONTROL      0xd4
 155 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 156 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 157 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 158 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 159 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 160
 161 #define ALI_CSO_ALPHA_FMS       0xe0
 162 #define ALI_LBA                 0xe4
 163 #define ALI_ESO_DELTA           0xe8
 164 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 165 #define ALI_EBUF1               0xf4
 166 #define ALI_EBUF2               0xf8
 167
 168 #define ALI_REG(codec, x) ((codec)->port + x)
 169
 170 #define MAX_CODECS 2
 171
 172
 173 struct snd_ali;
 174 struct snd_ali_voice;
 175
 176 struct snd_ali_channel_control {
 177         /* register data */
 178         struct REGDATA {
 179                 unsigned int start;
 180                 unsigned int stop;
 181                 unsigned int aint;
 182                 unsigned int ainten;
 183         } data;
 184
 185         /* register addresses */
 186         struct REGS {
 187                 unsigned int start;
 188                 unsigned int stop;
 189                 unsigned int aint;
 190                 unsigned int ainten;
 191                 unsigned int ac97read;
 192                 unsigned int ac97write;
 193         } regs;
 194
 195 };
 196
 197 struct snd_ali_voice {
 198         unsigned int number;
 199         unsigned int use :1,
 200                 pcm :1,
 201                 midi :1,
 202                 mode :1,
 203                 synth :1,
 204                 running :1;
 205
 206         /* PCM data */
 207         struct snd_ali *codec;
 208         struct snd_pcm_substream *substream;
 209         struct snd_ali_voice *extra;
 210
 211         int eso;                /* final ESO value for channel */
 212         int count;              /* runtime->period_size */
 213
 214         /* --- */
 215
 216         void *private_data;
 217         void (*private_free)(void *private_data);
 218 };
 219
 220
 221 struct snd_alidev {
 222
 223         struct snd_ali_voice voices[ALI_CHANNELS];
 224
 225         unsigned int    chcnt;                  /* num of opened channels */
 226         unsigned int    chmap;                  /* bitmap for opened channels */
 227         unsigned int synthcount;
 228
 229 };
 230
 231
 232 #define ALI_GLOBAL_REGS         56
 233 #define ALI_CHANNEL_REGS        8
 234 struct snd_ali_image {
 235         u32 regs[ALI_GLOBAL_REGS];
 236         u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 237 };
 238
 239
 240 struct snd_ali {
 241         int             irq;
 242         unsigned long   port;
 243         unsigned char   revision;
 244
 245         unsigned int hw_initialized :1;
 246         unsigned int spdif_support :1;
 247
 248         struct pci_dev  *pci;
 249         struct pci_dev  *pci_m1533;
 250         struct pci_dev  *pci_m7101;
 251
 252         struct snd_card *card;
 253         struct snd_pcm  *pcm[MAX_CODECS];
 254         struct snd_alidev       synth;
 255         struct snd_ali_channel_control chregs;
 256
 257         /* S/PDIF Mask */
 258         unsigned int    spdif_mask;
 259
 260         unsigned int spurious_irq_count;
 261         unsigned int spurious_irq_max_delta;
 262
 263         unsigned int num_of_codecs;
 264
 265         struct snd_ac97_bus *ac97_bus;
 266         struct snd_ac97 *ac97[MAX_CODECS];
 267         unsigned short  ac97_ext_id;
 268         unsigned short  ac97_ext_status;
 269
 270         spinlock_t      reg_lock;
 271         spinlock_t      voice_alloc;
 272
 273 #ifdef CONFIG_PM
 274         struct snd_ali_image *image;
 275 #endif
 276 };
 277
 278 static DEFINE_PCI_DEVICE_TABLE(snd_ali_ids) = {
 279         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 280         {0, }
 281 };
 282 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 283
 284 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 285 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 286 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 287                                unsigned short);
 288
 289 /*
 290  *  AC97 ACCESS
 291  */
 292
 293 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 294                                              unsigned int port)
 295 {
 296         return (unsigned int)inl(ALI_REG(codec, port));
 297 }
 298
 299 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 300                                      unsigned int port,
 301                                      unsigned int val)
 302 {
 303         outl((unsigned int)val, ALI_REG(codec, port));
 304 }
 305
 306 static int snd_ali_codec_ready(struct snd_ali *codec,
 307                                unsigned int port)
 308 {
 309         unsigned long end_time;
 310         unsigned int res;
 311
 312         end_time = jiffies + msecs_to_jiffies(250);
 313
 314         for (;;) {
 315                 res = snd_ali_5451_peek(codec,port);
 316                 if (!(res & 0x8000))
 317                         return 0;
 318                 if (!time_after_eq(end_time, jiffies))
 319                         break;
 320                 schedule_timeout_uninterruptible(1);
 321         }
 322
 323         snd_ali_5451_poke(codec, port, res & ~0x8000);
 324         snd_printdd("ali_codec_ready: codec is not ready.\n ");
 325         return -EIO;
 326 }
 327
 328 static int snd_ali_stimer_ready(struct snd_ali *codec)
 329 {
 330         unsigned long end_time;
 331         unsigned long dwChk1,dwChk2;
 332
 333         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 334         end_time = jiffies + msecs_to_jiffies(250);
 335
 336         for (;;) {
 337                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 338                 if (dwChk2 != dwChk1)
 339                         return 0;
 340                 if (!time_after_eq(end_time, jiffies))
 341                         break;
 342                 schedule_timeout_uninterruptible(1);
 343         }
 344
 345         snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n");
 346         return -EIO;
 347 }
 348
 349 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 350                                unsigned short reg,
 351                                unsigned short val)
 352 {
 353         unsigned int dwVal;
 354         unsigned int port;
 355
 356         if (reg >= 0x80) {
 357                 snd_printk(KERN_ERR "ali_codec_poke: reg(%xh) invalid.\n", reg);
 358                 return;
 359         }
 360
 361         port = codec->chregs.regs.ac97write;
 362
 363         if (snd_ali_codec_ready(codec, port) < 0)
 364                 return;
 365         if (snd_ali_stimer_ready(codec) < 0)
 366                 return;
 367
 368         dwVal  = (unsigned int) (reg & 0xff);
 369         dwVal |= 0x8000 | (val << 16);
 370         if (secondary)
 371                 dwVal |= 0x0080;
 372         if (codec->revision == ALI_5451_V02)
 373                 dwVal |= 0x0100;
 374
 375         snd_ali_5451_poke(codec, port, dwVal);
 376
 377         return ;
 378 }
 379
 380 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 381                                          int secondary,
 382                                          unsigned short reg)
 383 {
 384         unsigned int dwVal;
 385         unsigned int port;
 386
 387         if (reg >= 0x80) {
 388                 snd_printk(KERN_ERR "ali_codec_peek: reg(%xh) invalid.\n", reg);
 389                 return ~0;
 390         }
 391
 392         port = codec->chregs.regs.ac97read;
 393
 394         if (snd_ali_codec_ready(codec, port) < 0)
 395                 return ~0;
 396         if (snd_ali_stimer_ready(codec) < 0)
 397                 return ~0;
 398
 399         dwVal  = (unsigned int) (reg & 0xff);
 400         dwVal |= 0x8000;                                /* bit 15*/
 401         if (secondary)
 402                 dwVal |= 0x0080;
 403
 404         snd_ali_5451_poke(codec, port, dwVal);
 405
 406         if (snd_ali_stimer_ready(codec) < 0)
 407                 return ~0;
 408         if (snd_ali_codec_ready(codec, port) < 0)
 409                 return ~0;
 410
 411         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 412 }
 413
 414 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 415                                 unsigned short reg,
 416                                 unsigned short val )
 417 {
 418         struct snd_ali *codec = ac97->private_data;
 419
 420         snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
 421         if (reg == AC97_GPIO_STATUS) {
 422                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 423                      ALI_REG(codec, ALI_AC97_GPIO));
 424                 return;
 425         }
 426         snd_ali_codec_poke(codec, ac97->num, reg, val);
 427         return ;
 428 }
 429
 430
 431 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 432                                          unsigned short reg)
 433 {
 434         struct snd_ali *codec = ac97->private_data;
 435
 436         snd_ali_printk("codec_read reg=%xh.\n", reg);
 437         return snd_ali_codec_peek(codec, ac97->num, reg);
 438 }
 439
 440 /*
 441  *      AC97 Reset
 442  */
 443
 444 static int snd_ali_reset_5451(struct snd_ali *codec)
 445 {
 446         struct pci_dev *pci_dev;
 447         unsigned short wCount, wReg;
 448         unsigned int   dwVal;
 449
 450         pci_dev = codec->pci_m1533;
 451         if (pci_dev) {
 452                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 453                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 454                 udelay(5000);
 455                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 456                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 457                 udelay(5000);
 458         }
 459
 460         pci_dev = codec->pci;
 461         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 462         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 463         udelay(500);
 464         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 465         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 466         udelay(5000);
 467
 468         wCount = 200;
 469         while(wCount--) {
 470                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 471                 if ((wReg & 0x000f) == 0x000f)
 472                         return 0;
 473                 udelay(5000);
 474         }
 475
 476         /* non-fatal if you have a non PM capable codec */
 477         /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
 478         return 0;
 479 }
 480
 481 /*
 482  *  ALI 5451 Controller
 483  */
 484
 485 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 486                                            unsigned int channel)
 487 {
 488         unsigned long dwVal;
 489
 490         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 491         dwVal |= 1 << (channel & 0x0000001f);
 492         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 493 }
 494
 495 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 496                                             unsigned int channel)
 497 {
 498         unsigned long dwVal;
 499
 500         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 501         dwVal &= ~(1 << (channel & 0x0000001f));
 502         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 503 }
 504
 505 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 506 {
 507         unsigned int gc;
 508
 509         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 510         gc |= ENDLP_IE;
 511         gc |= MIDLP_IE;
 512         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 513 }
 514
 515 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 516 {
 517         unsigned int gc;
 518
 519         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 520         gc &= ~ENDLP_IE;
 521         gc &= ~MIDLP_IE;
 522         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 523 }
 524
 525 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 526                                       unsigned int channel)
 527 {
 528         unsigned int mask;
 529         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 530
 531         snd_ali_printk("disable_voice_irq channel=%d\n",channel);
 532
 533         mask = 1 << (channel & 0x1f);
 534         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 535         pchregs->data.ainten &= ~mask;
 536         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 537 }
 538
 539 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 540 {
 541         unsigned int idx =  channel & 0x1f;
 542
 543         if (codec->synth.chcnt >= ALI_CHANNELS){
 544                 snd_printk(KERN_ERR
 545                            "ali_alloc_pcm_channel: no free channels.\n");
 546                 return -1;
 547         }
 548
 549         if (!(codec->synth.chmap & (1 << idx))) {
 550                 codec->synth.chmap |= 1 << idx;
 551                 codec->synth.chcnt++;
 552                 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
 553                 return idx;
 554         }
 555         return -1;
 556 }
 557
 558 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 559 {
 560         int idx;
 561         int result = -1;
 562
 563         snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
 564
 565         /* recording */
 566         if (rec) {
 567                 if (codec->spdif_support &&
 568                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 569                      ALI_SPDIF_IN_SUPPORT))
 570                         idx = ALI_SPDIF_IN_CHANNEL;
 571                 else
 572                         idx = ALI_PCM_IN_CHANNEL;
 573
 574                 result = snd_ali_alloc_pcm_channel(codec, idx);
 575                 if (result >= 0)
 576                         return result;
 577                 else {
 578                         snd_printk(KERN_ERR "ali_find_free_channel: "
 579                                    "record channel is busy now.\n");
 580                         return -1;
 581                 }
 582         }
 583
 584         /* playback... */
 585         if (codec->spdif_support &&
 586             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 587              ALI_SPDIF_OUT_CH_ENABLE)) {
 588                 idx = ALI_SPDIF_OUT_CHANNEL;
 589                 result = snd_ali_alloc_pcm_channel(codec, idx);
 590                 if (result >= 0)
 591                         return result;
 592                 else
 593                         snd_printk(KERN_ERR "ali_find_free_channel: "
 594                                    "S/PDIF out channel is in busy now.\n");
 595         }
 596
 597         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 598                 result = snd_ali_alloc_pcm_channel(codec, idx);
 599                 if (result >= 0)
 600                         return result;
 601         }
 602         snd_printk(KERN_ERR "ali_find_free_channel: no free channels.\n");
 603         return -1;
 604 }
 605
 606 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 607 {
 608         unsigned int idx = channel & 0x0000001f;
 609
 610         snd_ali_printk("free_channel_pcm channel=%d\n",channel);
 611
 612         if (channel < 0 || channel >= ALI_CHANNELS)
 613                 return;
 614
 615         if (!(codec->synth.chmap & (1 << idx))) {
 616                 snd_printk(KERN_ERR "ali_free_channel_pcm: "
 617                            "channel %d is not in use.\n", channel);
 618                 return;
 619         } else {
 620                 codec->synth.chmap &= ~(1 << idx);
 621                 codec->synth.chcnt--;
 622         }
 623 }
 624
 625 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 626 {
 627         unsigned int mask = 1 << (channel & 0x1f);
 628
 629         snd_ali_printk("stop_voice: channel=%d\n",channel);
 630         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 631 }
 632
 633 /*
 634  *    S/PDIF Part
 635  */
 636
 637 static void snd_ali_delay(struct snd_ali *codec,int interval)
 638 {
 639         unsigned long  begintimer,currenttimer;
 640
 641         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 642         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 643
 644         while (currenttimer < begintimer + interval) {
 645                 if (snd_ali_stimer_ready(codec) < 0)
 646                         break;
 647                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 648                 cpu_relax();
 649         }
 650 }
 651
 652 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 653 {
 654         u16 wval;
 655         u16 count = 0;
 656         u8  bval, R1 = 0, R2;
 657
 658         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 659         bval |= 0x1F;
 660         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 661
 662         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 663                 count ++;
 664                 snd_ali_delay(codec, 6);
 665                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 666                 R1 = bval & 0x1F;
 667         }
 668
 669         if (count > 50000) {
 670                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 671                 return;
 672         }
 673
 674         for (count = 0; count <= 50000; count++) {
 675                 snd_ali_delay(codec, 6);
 676                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 677                 R2 = bval & 0x1F;
 678                 if (R2 != R1)
 679                         R1 = R2;
 680                 else
 681                         break;
 682         }
 683
 684         if (count > 50000) {
 685                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 686                 return;
 687         }
 688
 689         if (R2 >= 0x0b && R2 <= 0x0e) {
 690                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 691                 wval &= 0xe0f0;
 692                 wval |= (0x09 << 8) | 0x05;
 693                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 694
 695                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 696                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 697         } else if (R2 == 0x12) {
 698                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 699                 wval &= 0xe0f0;
 700                 wval |= (0x0e << 8) | 0x08;
 701                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 702
 703                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 704                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 705         }
 706 }
 707
 708 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 709 {
 710         u32     dwRate;
 711         u8      bval;
 712
 713         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 714         bval &= 0x7f;
 715         bval |= 0x40;
 716         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 717
 718         snd_ali_detect_spdif_rate(codec);
 719
 720         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 721         bval &= 0x0f;
 722
 723         switch (bval) {
 724         case 0: dwRate = 44100; break;
 725         case 1: dwRate = 48000; break;
 726         case 2: dwRate = 32000; break;
 727         default: dwRate = 0; break;
 728         }
 729
 730         return dwRate;
 731 }
 732
 733 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 734 {
 735         unsigned int dwVal;
 736
 737         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 738         dwVal |= ALI_SPDIF_IN_SUPPORT;
 739         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 740
 741         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 742         dwVal |= 0x02;
 743         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 744
 745         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 746 }
 747
 748 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 749 {
 750         unsigned int dwVal;
 751
 752         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 753         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 754         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 755
 756         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 757 }
 758
 759
 760 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 761 {
 762         unsigned char  bVal;
 763         unsigned int  dwRate;
 764
 765         switch (rate) {
 766         case 32000: dwRate = 0x300; break;
 767         case 48000: dwRate = 0x200; break;
 768         default: dwRate = 0; break;
 769         }
 770
 771         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 772         bVal &= (unsigned char)(~(1<<6));
 773
 774         bVal |= 0x80;           /* select right */
 775         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 776         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 777
 778         bVal &= ~0x80;  /* select left */
 779         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 780         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 781 }
 782
 783 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 784 {
 785         unsigned short wVal;
 786         unsigned char bVal;
 787         struct pci_dev *pci_dev;
 788
 789         pci_dev = codec->pci_m1533;
 790         if (pci_dev == NULL)
 791                 return;
 792         pci_read_config_byte(pci_dev, 0x61, &bVal);
 793         bVal |= 0x40;
 794         pci_write_config_byte(pci_dev, 0x61, bVal);
 795         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 796         bVal |= 0x01;
 797         pci_write_config_byte(pci_dev, 0x7d, bVal);
 798
 799         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 800         bVal &= (~0x20);
 801         bVal |= 0x10;
 802         pci_write_config_byte(pci_dev, 0x7e, bVal);
 803
 804         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 805         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 806
 807         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 808         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 809
 810         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 811         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 812         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 813         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 814 }
 815
 816 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 817 {
 818         unsigned short wVal;
 819
 820         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 821         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 822         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 823 /*
 824         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 825         if (flag & ALI_SPDIF_OUT_NON_PCM)
 826                 wVal |= 0x0002;
 827         else
 828                 wVal &= (~0x0002);
 829         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 830 */
 831         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 832 }
 833
 834 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 835 {
 836         unsigned short wVal;
 837
 838         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 839         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 840         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 841
 842         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 843 }
 844
 845 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 846 {
 847         unsigned char  bVal;
 848
 849         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 850         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 851
 852         snd_ali_disable_spdif_chnout(codec);
 853 }
 854
 855 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 856 {
 857         struct snd_ali_voice *pvoice;
 858         struct snd_pcm_runtime *runtime;
 859         struct snd_ali_channel_control *pchregs;
 860         unsigned int old, mask;
 861 #ifdef ALI_DEBUG
 862         unsigned int temp, cspf;
 863 #endif
 864
 865         pchregs = &(codec->chregs);
 866
 867         /* check if interrupt occurred for channel */
 868         old  = pchregs->data.aint;
 869         mask = 1U << (channel & 0x1f);
 870
 871         if (!(old & mask))
 872                 return;
 873
 874         pvoice = &codec->synth.voices[channel];
 875         runtime = pvoice->substream->runtime;
 876
 877         udelay(100);
 878         spin_lock(&codec->reg_lock);
 879
 880         if (pvoice->pcm && pvoice->substream) {
 881                 /* pcm interrupt */
 882 #ifdef ALI_DEBUG
 883                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
 884                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
 885                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
 886 #endif
 887                 if (pvoice->running) {
 888                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",
 889                                        (u16)temp, cspf);
 890                         spin_unlock(&codec->reg_lock);
 891                         snd_pcm_period_elapsed(pvoice->substream);
 892                         spin_lock(&codec->reg_lock);
 893                 } else {
 894                         snd_ali_stop_voice(codec, channel);
 895                         snd_ali_disable_voice_irq(codec, channel);
 896                 }
 897         } else if (codec->synth.voices[channel].synth) {
 898                 /* synth interrupt */
 899         } else if (codec->synth.voices[channel].midi) {
 900                 /* midi interrupt */
 901         } else {
 902                 /* unknown interrupt */
 903                 snd_ali_stop_voice(codec, channel);
 904                 snd_ali_disable_voice_irq(codec, channel);
 905         }
 906         spin_unlock(&codec->reg_lock);
 907         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 908         pchregs->data.aint = old & (~mask);
 909 }
 910
 911 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 912 {
 913         struct snd_ali  *codec = dev_id;
 914         int channel;
 915         unsigned int audio_int;
 916         struct snd_ali_channel_control *pchregs;
 917
 918         if (codec == NULL || !codec->hw_initialized)
 919                 return IRQ_NONE;
 920
 921         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 922         if (!audio_int)
 923                 return IRQ_NONE;
 924
 925         pchregs = &(codec->chregs);
 926         if (audio_int & ADDRESS_IRQ) {
 927                 /* get interrupt status for all channels */
 928                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 929                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 930                         snd_ali_update_ptr(codec, channel);
 931         }
 932         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 933                 ALI_REG(codec, ALI_MISCINT));
 934
 935         return IRQ_HANDLED;
 936 }
 937
 938
 939 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 940                                                  int type, int rec, int channel)
 941 {
 942         struct snd_ali_voice *pvoice;
 943         int idx;
 944
 945         snd_ali_printk("alloc_voice: type=%d rec=%d\n", type, rec);
 946
 947         spin_lock_irq(&codec->voice_alloc);
 948         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 949                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 950                         snd_ali_find_free_channel(codec,rec);
 951                 if (idx < 0) {
 952                         snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
 953                         spin_unlock_irq(&codec->voice_alloc);
 954                         return NULL;
 955                 }
 956                 pvoice = &(codec->synth.voices[idx]);
 957                 pvoice->codec = codec;
 958                 pvoice->use = 1;
 959                 pvoice->pcm = 1;
 960                 pvoice->mode = rec;
 961                 spin_unlock_irq(&codec->voice_alloc);
 962                 return pvoice;
 963         }
 964         spin_unlock_irq(&codec->voice_alloc);
 965         return NULL;
 966 }
 967
 968
 969 static void snd_ali_free_voice(struct snd_ali * codec,
 970                                struct snd_ali_voice *pvoice)
 971 {
 972         void (*private_free)(void *);
 973         void *private_data;
 974
 975         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
 976         if (!pvoice->use)
 977                 return;
 978         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 979         spin_lock_irq(&codec->voice_alloc);
 980         private_free = pvoice->private_free;
 981         private_data = pvoice->private_data;
 982         pvoice->private_free = NULL;
 983         pvoice->private_data = NULL;
 984         if (pvoice->pcm)
 985                 snd_ali_free_channel_pcm(codec, pvoice->number);
 986         pvoice->use = pvoice->pcm = pvoice->synth = 0;
 987         pvoice->substream = NULL;
 988         spin_unlock_irq(&codec->voice_alloc);
 989         if (private_free)
 990                 private_free(private_data);
 991 }
 992
 993
 994 static void snd_ali_clear_voices(struct snd_ali *codec,
 995                                  unsigned int v_min,
 996                                  unsigned int v_max)
 997 {
 998         unsigned int i;
 999
1000         for (i = v_min; i <= v_max; i++) {
1001                 snd_ali_stop_voice(codec, i);
1002                 snd_ali_disable_voice_irq(codec, i);
1003         }
1004 }
1005
1006 static void snd_ali_write_voice_regs(struct snd_ali *codec,
1007                          unsigned int Channel,
1008                          unsigned int LBA,
1009                          unsigned int CSO,
1010                          unsigned int ESO,
1011                          unsigned int DELTA,
1012                          unsigned int ALPHA_FMS,
1013                          unsigned int GVSEL,
1014                          unsigned int PAN,
1015                          unsigned int VOL,
1016                          unsigned int CTRL,
1017                          unsigned int EC)
1018 {
1019         unsigned int ctlcmds[4];
1020
1021         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1022
1023         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1024         ctlcmds[1] =  LBA;
1025         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1026         ctlcmds[3] =  (GVSEL << 31) |
1027                       ((PAN & 0x0000007f) << 24) |
1028                       ((VOL & 0x000000ff) << 16) |
1029                       ((CTRL & 0x0000000f) << 12) |
1030                       (EC & 0x00000fff);
1031
1032         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1033
1034         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1035         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1036         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1037         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1038
1039         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1040         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1041 }
1042
1043 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1044 {
1045         unsigned int delta;
1046
1047         if (rate < 4000)
1048                 rate = 4000;
1049         if (rate > 48000)
1050                 rate = 48000;
1051
1052         if (rec) {
1053                 if (rate == 44100)
1054                         delta = 0x116a;
1055                 else if (rate == 8000)
1056                         delta = 0x6000;
1057                 else if (rate == 48000)
1058                         delta = 0x1000;
1059                 else
1060                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1061         } else {
1062                 if (rate == 44100)
1063                         delta = 0xeb3;
1064                 else if (rate == 8000)
1065                         delta = 0x2ab;
1066                 else if (rate == 48000)
1067                         delta = 0x1000;
1068                 else
1069                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1070         }
1071
1072         return delta;
1073 }
1074
1075 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1076 {
1077         unsigned int CTRL;
1078         struct snd_pcm_runtime *runtime = substream->runtime;
1079
1080         /* set ctrl mode
1081            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1082          */
1083         CTRL = 0x00000001;
1084         if (snd_pcm_format_width(runtime->format) == 16)
1085                 CTRL |= 0x00000008;     /* 16-bit data */
1086         if (!snd_pcm_format_unsigned(runtime->format))
1087                 CTRL |= 0x00000002;     /* signed data */
1088         if (runtime->channels > 1)
1089                 CTRL |= 0x00000004;     /* stereo data */
1090         return CTRL;
1091 }
1092
1093 /*
1094  *  PCM part
1095  */
1096
1097 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1098                                int cmd)
1099
1100 {
1101         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1102         struct snd_pcm_substream *s;
1103         unsigned int what, whati, capture_flag;
1104         struct snd_ali_voice *pvoice, *evoice;
1105         unsigned int val;
1106         int do_start;
1107
1108         switch (cmd) {
1109         case SNDRV_PCM_TRIGGER_START:
1110         case SNDRV_PCM_TRIGGER_RESUME:
1111                 do_start = 1;
1112                 break;
1113         case SNDRV_PCM_TRIGGER_STOP:
1114         case SNDRV_PCM_TRIGGER_SUSPEND:
1115                 do_start = 0;
1116                 break;
1117         default:
1118                 return -EINVAL;
1119         }
1120
1121         what = whati = capture_flag = 0;
1122         snd_pcm_group_for_each_entry(s, substream) {
1123                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1124                         pvoice = s->runtime->private_data;
1125                         evoice = pvoice->extra;
1126                         what |= 1 << (pvoice->number & 0x1f);
1127                         if (evoice == NULL)
1128                                 whati |= 1 << (pvoice->number & 0x1f);
1129                         else {
1130                                 whati |= 1 << (evoice->number & 0x1f);
1131                                 what |= 1 << (evoice->number & 0x1f);
1132                         }
1133                         if (do_start) {
1134                                 pvoice->running = 1;
1135                                 if (evoice != NULL)
1136                                         evoice->running = 1;
1137                         } else {
1138                                 pvoice->running = 0;
1139                                 if (evoice != NULL)
1140                                         evoice->running = 0;
1141                         }
1142                         snd_pcm_trigger_done(s, substream);
1143                         if (pvoice->mode)
1144                                 capture_flag = 1;
1145                 }
1146         }
1147         spin_lock(&codec->reg_lock);
1148         if (!do_start)
1149                 outl(what, ALI_REG(codec, ALI_STOP));
1150         val = inl(ALI_REG(codec, ALI_AINTEN));
1151         if (do_start)
1152                 val |= whati;
1153         else
1154                 val &= ~whati;
1155         outl(val, ALI_REG(codec, ALI_AINTEN));
1156         if (do_start)
1157                 outl(what, ALI_REG(codec, ALI_START));
1158         snd_ali_printk("trigger: what=%xh whati=%xh\n", what, whati);
1159         spin_unlock(&codec->reg_lock);
1160
1161         return 0;
1162 }
1163
1164 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1165                                       struct snd_pcm_hw_params *hw_params)
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->extra;
1171         int err;
1172
1173         err = snd_pcm_lib_malloc_pages(substream,
1174                                        params_buffer_bytes(hw_params));
1175         if (err < 0)
1176                 return err;
1177
1178         /* voice management */
1179
1180         if (params_buffer_size(hw_params) / 2 !=
1181             params_period_size(hw_params)) {
1182                 if (!evoice) {
1183                         evoice = snd_ali_alloc_voice(codec,
1184                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1185                                                      0, -1);
1186                         if (!evoice)
1187                                 return -ENOMEM;
1188                         pvoice->extra = evoice;
1189                         evoice->substream = substream;
1190                 }
1191         } else {
1192                 if (evoice) {
1193                         snd_ali_free_voice(codec, evoice);
1194                         pvoice->extra = evoice = NULL;
1195                 }
1196         }
1197
1198         return 0;
1199 }
1200
1201 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1202 {
1203         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1204         struct snd_pcm_runtime *runtime = substream->runtime;
1205         struct snd_ali_voice *pvoice = runtime->private_data;
1206         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1207
1208         snd_pcm_lib_free_pages(substream);
1209         if (evoice) {
1210                 snd_ali_free_voice(codec, evoice);
1211                 pvoice->extra = NULL;
1212         }
1213         return 0;
1214 }
1215
1216 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1217                              struct snd_pcm_hw_params *hw_params)
1218 {
1219         return snd_pcm_lib_malloc_pages(substream,
1220                                         params_buffer_bytes(hw_params));
1221 }
1222
1223 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1224 {
1225         return snd_pcm_lib_free_pages(substream);
1226 }
1227
1228 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1229 {
1230         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1231         struct snd_pcm_runtime *runtime = substream->runtime;
1232         struct snd_ali_voice *pvoice = runtime->private_data;
1233         struct snd_ali_voice *evoice = pvoice->extra;
1234
1235         unsigned int LBA;
1236         unsigned int Delta;
1237         unsigned int ESO;
1238         unsigned int CTRL;
1239         unsigned int GVSEL;
1240         unsigned int PAN;
1241         unsigned int VOL;
1242         unsigned int EC;
1243
1244         snd_ali_printk("playback_prepare ...\n");
1245
1246         spin_lock_irq(&codec->reg_lock);
1247
1248         /* set Delta (rate) value */
1249         Delta = snd_ali_convert_rate(runtime->rate, 0);
1250
1251         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1252             pvoice->number == ALI_PCM_IN_CHANNEL)
1253                 snd_ali_disable_special_channel(codec, pvoice->number);
1254         else if (codec->spdif_support &&
1255                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1256                   ALI_SPDIF_OUT_CH_ENABLE)
1257                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1258                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1259                 Delta = 0x1000;
1260         }
1261
1262         /* set Loop Back Address */
1263         LBA = runtime->dma_addr;
1264
1265         /* set interrupt count size */
1266         pvoice->count = runtime->period_size;
1267
1268         /* set target ESO for channel */
1269         pvoice->eso = runtime->buffer_size;
1270
1271         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",
1272                        pvoice->eso, pvoice->count);
1273
1274         /* set ESO to capture first MIDLP interrupt */
1275         ESO = pvoice->eso -1;
1276         /* set ctrl mode */
1277         CTRL = snd_ali_control_mode(substream);
1278
1279         GVSEL = 1;
1280         PAN = 0;
1281         VOL = 0;
1282         EC = 0;
1283         snd_ali_printk("playback_prepare:\n");
1284         snd_ali_printk("ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1285                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1286         snd_ali_write_voice_regs(codec,
1287                                  pvoice->number,
1288                                  LBA,
1289                                  0,     /* cso */
1290                                  ESO,
1291                                  Delta,
1292                                  0,     /* alpha */
1293                                  GVSEL,
1294                                  PAN,
1295                                  VOL,
1296                                  CTRL,
1297                                  EC);
1298         if (evoice) {
1299                 evoice->count = pvoice->count;
1300                 evoice->eso = pvoice->count << 1;
1301                 ESO = evoice->eso - 1;
1302                 snd_ali_write_voice_regs(codec,
1303                                          evoice->number,
1304                                          LBA,
1305                                          0,     /* cso */
1306                                          ESO,
1307                                          Delta,
1308                                          0,     /* alpha */
1309                                          GVSEL,
1310                                          0x7f,
1311                                          0x3ff,
1312                                          CTRL,
1313                                          EC);
1314         }
1315         spin_unlock_irq(&codec->reg_lock);
1316         return 0;
1317 }
1318
1319
1320 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1321 {
1322         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1323         struct snd_pcm_runtime *runtime = substream->runtime;
1324         struct snd_ali_voice *pvoice = runtime->private_data;
1325         unsigned int LBA;
1326         unsigned int Delta;
1327         unsigned int ESO;
1328         unsigned int CTRL;
1329         unsigned int GVSEL;
1330         unsigned int PAN;
1331         unsigned int VOL;
1332         unsigned int EC;
1333         u8       bValue;
1334
1335         spin_lock_irq(&codec->reg_lock);
1336
1337         snd_ali_printk("ali_prepare...\n");
1338
1339         snd_ali_enable_special_channel(codec,pvoice->number);
1340
1341         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1342                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1343                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1344
1345         /* Prepare capture intr channel */
1346         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1347
1348                 unsigned int rate;
1349
1350                 spin_unlock_irq(&codec->reg_lock);
1351                 if (codec->revision != ALI_5451_V02)
1352                         return -1;
1353
1354                 rate = snd_ali_get_spdif_in_rate(codec);
1355                 if (rate == 0) {
1356                         snd_printk(KERN_WARNING "ali_capture_preapre: "
1357                                    "spdif rate detect err!\n");
1358                         rate = 48000;
1359                 }
1360                 spin_lock_irq(&codec->reg_lock);
1361                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1362                 if (bValue & 0x10) {
1363                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1364                         printk(KERN_WARNING "clear SPDIF parity error flag.\n");
1365                 }
1366
1367                 if (rate != 48000)
1368                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1369         }
1370
1371         /* set target ESO for channel  */
1372         pvoice->eso = runtime->buffer_size;
1373
1374         /* set interrupt count size  */
1375         pvoice->count = runtime->period_size;
1376
1377         /* set Loop Back Address  */
1378         LBA = runtime->dma_addr;
1379
1380         /* set ESO to capture first MIDLP interrupt  */
1381         ESO = pvoice->eso - 1;
1382         CTRL = snd_ali_control_mode(substream);
1383         GVSEL = 0;
1384         PAN = 0x00;
1385         VOL = 0x00;
1386         EC = 0;
1387
1388         snd_ali_write_voice_regs(    codec,
1389                                      pvoice->number,
1390                                      LBA,
1391                                      0, /* cso */
1392                                      ESO,
1393                                      Delta,
1394                                      0, /* alpha */
1395                                      GVSEL,
1396                                      PAN,
1397                                      VOL,
1398                                      CTRL,
1399                                      EC);
1400
1401         spin_unlock_irq(&codec->reg_lock);
1402
1403         return 0;
1404 }
1405
1406
1407 static snd_pcm_uframes_t
1408 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1409 {
1410         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1411         struct snd_pcm_runtime *runtime = substream->runtime;
1412         struct snd_ali_voice *pvoice = runtime->private_data;
1413         unsigned int cso;
1414
1415         spin_lock(&codec->reg_lock);
1416         if (!pvoice->running) {
1417                 spin_unlock(&codec->reg_lock);
1418                 return 0;
1419         }
1420         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1421         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1422         spin_unlock(&codec->reg_lock);
1423         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1424
1425         cso %= runtime->buffer_size;
1426         return cso;
1427 }
1428
1429
1430 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1431 {
1432         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1433         struct snd_pcm_runtime *runtime = substream->runtime;
1434         struct snd_ali_voice *pvoice = runtime->private_data;
1435         unsigned int cso;
1436
1437         spin_lock(&codec->reg_lock);
1438         if (!pvoice->running) {
1439                 spin_unlock(&codec->reg_lock);
1440                 return 0;
1441         }
1442         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1443         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1444         spin_unlock(&codec->reg_lock);
1445
1446         cso %= runtime->buffer_size;
1447         return cso;
1448 }
1449
1450 static struct snd_pcm_hardware snd_ali_playback =
1451 {
1452         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1453                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1454                          SNDRV_PCM_INFO_MMAP_VALID |
1455                          SNDRV_PCM_INFO_RESUME |
1456                          SNDRV_PCM_INFO_SYNC_START),
1457         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1458                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1459         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1460         .rate_min =             4000,
1461         .rate_max =             48000,
1462         .channels_min =         1,
1463         .channels_max =         2,
1464         .buffer_bytes_max =     (256*1024),
1465         .period_bytes_min =     64,
1466         .period_bytes_max =     (256*1024),
1467         .periods_min =          1,
1468         .periods_max =          1024,
1469         .fifo_size =            0,
1470 };
1471
1472 /*
1473  *  Capture support device description
1474  */
1475
1476 static struct snd_pcm_hardware snd_ali_capture =
1477 {
1478         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1479                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1480                          SNDRV_PCM_INFO_MMAP_VALID |
1481                          SNDRV_PCM_INFO_RESUME |
1482                          SNDRV_PCM_INFO_SYNC_START),
1483         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1484                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1485         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1486         .rate_min =             4000,
1487         .rate_max =             48000,
1488         .channels_min =         1,
1489         .channels_max =         2,
1490         .buffer_bytes_max =     (128*1024),
1491         .period_bytes_min =     64,
1492         .period_bytes_max =     (128*1024),
1493         .periods_min =          1,
1494         .periods_max =          1024,
1495         .fifo_size =            0,
1496 };
1497
1498 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1499 {
1500         struct snd_ali_voice *pvoice = runtime->private_data;
1501         struct snd_ali *codec;
1502
1503         if (pvoice) {
1504                 codec = pvoice->codec;
1505                 snd_ali_free_voice(pvoice->codec, pvoice);
1506         }
1507 }
1508
1509 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1510                         int channel, struct snd_pcm_hardware *phw)
1511 {
1512         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1513         struct snd_pcm_runtime *runtime = substream->runtime;
1514         struct snd_ali_voice *pvoice;
1515
1516         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1517                                      channel);
1518         if (!pvoice)
1519                 return -EAGAIN;
1520
1521         pvoice->substream = substream;
1522         runtime->private_data = pvoice;
1523         runtime->private_free = snd_ali_pcm_free_substream;
1524
1525         runtime->hw = *phw;
1526         snd_pcm_set_sync(substream);
1527         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1528                                      0, 64*1024);
1529         return 0;
1530 }
1531
1532 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1533 {
1534         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1535 }
1536
1537 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1538 {
1539         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1540 }
1541
1542 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1543 {
1544         return 0;
1545 }
1546
1547 static int snd_ali_close(struct snd_pcm_substream *substream)
1548 {
1549         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1550         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1551
1552         snd_ali_disable_special_channel(codec,pvoice->number);
1553
1554         return 0;
1555 }
1556
1557 static struct snd_pcm_ops snd_ali_playback_ops = {
1558         .open =         snd_ali_playback_open,
1559         .close =        snd_ali_playback_close,
1560         .ioctl =        snd_pcm_lib_ioctl,
1561         .hw_params =    snd_ali_playback_hw_params,
1562         .hw_free =      snd_ali_playback_hw_free,
1563         .prepare =      snd_ali_playback_prepare,
1564         .trigger =      snd_ali_trigger,
1565         .pointer =      snd_ali_playback_pointer,
1566 };
1567
1568 static struct snd_pcm_ops snd_ali_capture_ops = {
1569         .open =         snd_ali_capture_open,
1570         .close =        snd_ali_close,
1571         .ioctl =        snd_pcm_lib_ioctl,
1572         .hw_params =    snd_ali_hw_params,
1573         .hw_free =      snd_ali_hw_free,
1574         .prepare =      snd_ali_prepare,
1575         .trigger =      snd_ali_trigger,
1576         .pointer =      snd_ali_pointer,
1577 };
1578
1579 /*
1580  * Modem PCM
1581  */
1582
1583 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1584                                  struct snd_pcm_hw_params *hw_params)
1585 {
1586         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1587         unsigned int modem_num = chip->num_of_codecs - 1;
1588         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1589                        params_rate(hw_params));
1590         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1591         return snd_ali_hw_params(substream, hw_params);
1592 }
1593
1594 static struct snd_pcm_hardware snd_ali_modem =
1595 {
1596         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1597                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1598                          SNDRV_PCM_INFO_MMAP_VALID |
1599                          SNDRV_PCM_INFO_RESUME |
1600                          SNDRV_PCM_INFO_SYNC_START),
1601         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1602         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1603                          SNDRV_PCM_RATE_16000),
1604         .rate_min =             8000,
1605         .rate_max =             16000,
1606         .channels_min =         1,
1607         .channels_max =         1,
1608         .buffer_bytes_max =     (256*1024),
1609         .period_bytes_min =     64,
1610         .period_bytes_max =     (256*1024),
1611         .periods_min =          1,
1612         .periods_max =          1024,
1613         .fifo_size =            0,
1614 };
1615
1616 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1617                               int channel)
1618 {
1619         static unsigned int rates[] = {8000, 9600, 12000, 16000};
1620         static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1621                 .count = ARRAY_SIZE(rates),
1622                 .list = rates,
1623                 .mask = 0,
1624         };
1625         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1626
1627         if (err)
1628                 return err;
1629         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1630                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1631 }
1632
1633 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1634 {
1635         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1636 }
1637
1638 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1639 {
1640         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1641 }
1642
1643 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1644         .open =         snd_ali_modem_playback_open,
1645         .close =        snd_ali_close,
1646         .ioctl =        snd_pcm_lib_ioctl,
1647         .hw_params =    snd_ali_modem_hw_params,
1648         .hw_free =      snd_ali_hw_free,
1649         .prepare =      snd_ali_prepare,
1650         .trigger =      snd_ali_trigger,
1651         .pointer =      snd_ali_pointer,
1652 };
1653
1654 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1655         .open =         snd_ali_modem_capture_open,
1656         .close =        snd_ali_close,
1657         .ioctl =        snd_pcm_lib_ioctl,
1658         .hw_params =    snd_ali_modem_hw_params,
1659         .hw_free =      snd_ali_hw_free,
1660         .prepare =      snd_ali_prepare,
1661         .trigger =      snd_ali_trigger,
1662         .pointer =      snd_ali_pointer,
1663 };
1664
1665
1666 struct ali_pcm_description {
1667         char *name;
1668         unsigned int playback_num;
1669         unsigned int capture_num;
1670         struct snd_pcm_ops *playback_ops;
1671         struct snd_pcm_ops *capture_ops;
1672         unsigned short class;
1673 };
1674
1675
1676 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1677 {
1678         struct snd_ali *codec = pcm->private_data;
1679         codec->pcm[pcm->device] = NULL;
1680 }
1681
1682
1683 static int __devinit snd_ali_pcm(struct snd_ali * codec, int device,
1684                                  struct ali_pcm_description *desc)
1685 {
1686         struct snd_pcm *pcm;
1687         int err;
1688
1689         err = snd_pcm_new(codec->card, desc->name, device,
1690                           desc->playback_num, desc->capture_num, &pcm);
1691         if (err < 0) {
1692                 snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
1693                 return err;
1694         }
1695         pcm->private_data = codec;
1696         pcm->private_free = snd_ali_pcm_free;
1697         if (desc->playback_ops)
1698                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1699                                 desc->playback_ops);
1700         if (desc->capture_ops)
1701                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1702                                 desc->capture_ops);
1703
1704         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1705                                               snd_dma_pci_data(codec->pci),
1706                                               64*1024, 128*1024);
1707
1708         pcm->info_flags = 0;
1709         pcm->dev_class = desc->class;
1710         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1711         strcpy(pcm->name, desc->name);
1712         codec->pcm[0] = pcm;
1713         return 0;
1714 }
1715
1716 static struct ali_pcm_description ali_pcms[] = {
1717         { .name = "ALI 5451",
1718           .playback_num = ALI_CHANNELS,
1719           .capture_num = 1,
1720           .playback_ops = &snd_ali_playback_ops,
1721           .capture_ops = &snd_ali_capture_ops
1722         },
1723         { .name = "ALI 5451 modem",
1724           .playback_num = 1,
1725           .capture_num = 1,
1726           .playback_ops = &snd_ali_modem_playback_ops,
1727           .capture_ops = &snd_ali_modem_capture_ops,
1728           .class = SNDRV_PCM_CLASS_MODEM
1729         }
1730 };
1731
1732 static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
1733 {
1734         int i, err;
1735         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1736                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1737                 if (err < 0)
1738                         return err;
1739         }
1740         return 0;
1741 }
1742
1743
1744 #define ALI5451_SPDIF(xname, xindex, value) \
1745 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1746 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1747 .put = snd_ali5451_spdif_put, .private_value = value}
1748
1749 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1750
1751 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1752                                  struct snd_ctl_elem_value *ucontrol)
1753 {
1754         struct snd_ali *codec = kcontrol->private_data;
1755         unsigned int spdif_enable;
1756
1757         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1758
1759         spin_lock_irq(&codec->reg_lock);
1760         switch (kcontrol->private_value) {
1761         case 0:
1762                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1763                 break;
1764         case 1:
1765                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1766                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1767                 break;
1768         case 2:
1769                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1770                 break;
1771         default:
1772                 break;
1773         }
1774         ucontrol->value.integer.value[0] = spdif_enable;
1775         spin_unlock_irq(&codec->reg_lock);
1776         return 0;
1777 }
1778
1779 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1780                                  struct snd_ctl_elem_value *ucontrol)
1781 {
1782         struct snd_ali *codec = kcontrol->private_data;
1783         unsigned int change = 0, spdif_enable = 0;
1784
1785         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1786
1787         spin_lock_irq(&codec->reg_lock);
1788         switch (kcontrol->private_value) {
1789         case 0:
1790                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1791                 change = change ^ spdif_enable;
1792                 if (change) {
1793                         if (spdif_enable) {
1794                                 codec->spdif_mask |= 0x02;
1795                                 snd_ali_enable_spdif_out(codec);
1796                         } else {
1797                                 codec->spdif_mask &= ~(0x02);
1798                                 codec->spdif_mask &= ~(0x04);
1799                                 snd_ali_disable_spdif_out(codec);
1800                         }
1801                 }
1802                 break;
1803         case 1:
1804                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1805                 change = change ^ spdif_enable;
1806                 if (change && (codec->spdif_mask & 0x02)) {
1807                         if (spdif_enable) {
1808                                 codec->spdif_mask |= 0x04;
1809                                 snd_ali_enable_spdif_chnout(codec);
1810                         } else {
1811                                 codec->spdif_mask &= ~(0x04);
1812                                 snd_ali_disable_spdif_chnout(codec);
1813                         }
1814                 }
1815                 break;
1816         case 2:
1817                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1818                 change = change ^ spdif_enable;
1819                 if (change) {
1820                         if (spdif_enable) {
1821                                 codec->spdif_mask |= 0x01;
1822                                 snd_ali_enable_spdif_in(codec);
1823                         } else {
1824                                 codec->spdif_mask &= ~(0x01);
1825                                 snd_ali_disable_spdif_in(codec);
1826                         }
1827                 }
1828                 break;
1829         default:
1830                 break;
1831         }
1832         spin_unlock_irq(&codec->reg_lock);
1833
1834         return change;
1835 }
1836
1837 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
1838         /* spdif aplayback switch */
1839         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1840         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1841         /* spdif out to spdif channel */
1842         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1843         /* spdif in from spdif channel */
1844         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1845 };
1846
1847 static int __devinit snd_ali_mixer(struct snd_ali * codec)
1848 {
1849         struct snd_ac97_template ac97;
1850         unsigned int idx;
1851         int i, err;
1852         static struct snd_ac97_bus_ops ops = {
1853                 .write = snd_ali_codec_write,
1854                 .read = snd_ali_codec_read,
1855         };
1856
1857         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1858         if (err < 0)
1859                 return err;
1860
1861         memset(&ac97, 0, sizeof(ac97));
1862         ac97.private_data = codec;
1863
1864         for (i = 0; i < codec->num_of_codecs; i++) {
1865                 ac97.num = i;
1866                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1867                 if (err < 0) {
1868                         snd_printk(KERN_ERR
1869                                    "ali mixer %d creating error.\n", i);
1870                         if (i == 0)
1871                                 return err;
1872                         codec->num_of_codecs = 1;
1873                         break;
1874                 }
1875         }
1876
1877         if (codec->spdif_support) {
1878                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1879                         err = snd_ctl_add(codec->card,
1880                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1881                         if (err < 0)
1882                                 return err;
1883                 }
1884         }
1885         return 0;
1886 }
1887
1888 #ifdef CONFIG_PM
1889 static int ali_suspend(struct pci_dev *pci, pm_message_t state)
1890 {
1891         struct snd_card *card = pci_get_drvdata(pci);
1892         struct snd_ali *chip = card->private_data;
1893         struct snd_ali_image *im;
1894         int i, j;
1895
1896         im = chip->image;
1897         if (!im)
1898                 return 0;
1899
1900         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1901         for (i = 0; i < chip->num_of_codecs; i++) {
1902                 snd_pcm_suspend_all(chip->pcm[i]);
1903                 snd_ac97_suspend(chip->ac97[i]);
1904         }
1905
1906         spin_lock_irq(&chip->reg_lock);
1907
1908         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1909         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1910         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1911
1912         /* disable all IRQ bits */
1913         outl(0, ALI_REG(chip, ALI_MISCINT));
1914
1915         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1916                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1917                         continue;
1918                 im->regs[i] = inl(ALI_REG(chip, i*4));
1919         }
1920
1921         for (i = 0; i < ALI_CHANNELS; i++) {
1922                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1923                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1924                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1925         }
1926
1927         /* stop all HW channel */
1928         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1929
1930         spin_unlock_irq(&chip->reg_lock);
1931
1932         pci_disable_device(pci);
1933         pci_save_state(pci);
1934         pci_set_power_state(pci, pci_choose_state(pci, state));
1935         return 0;
1936 }
1937
1938 static int ali_resume(struct pci_dev *pci)
1939 {
1940         struct snd_card *card = pci_get_drvdata(pci);
1941         struct snd_ali *chip = card->private_data;
1942         struct snd_ali_image *im;
1943         int i, j;
1944
1945         im = chip->image;
1946         if (!im)
1947                 return 0;
1948
1949         pci_set_power_state(pci, PCI_D0);
1950         pci_restore_state(pci);
1951         if (pci_enable_device(pci) < 0) {
1952                 printk(KERN_ERR "ali5451: pci_enable_device failed, "
1953                        "disabling device\n");
1954                 snd_card_disconnect(card);
1955                 return -EIO;
1956         }
1957         pci_set_master(pci);
1958
1959         spin_lock_irq(&chip->reg_lock);
1960
1961         for (i = 0; i < ALI_CHANNELS; i++) {
1962                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1963                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1964                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1965         }
1966
1967         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1968                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1969                     (i*4 == ALI_START))
1970                         continue;
1971                 outl(im->regs[i], ALI_REG(chip, i*4));
1972         }
1973
1974         /* start HW channel */
1975         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1976         /* restore IRQ enable bits */
1977         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1978
1979         spin_unlock_irq(&chip->reg_lock);
1980
1981         for (i = 0 ; i < chip->num_of_codecs; i++)
1982                 snd_ac97_resume(chip->ac97[i]);
1983
1984         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1985         return 0;
1986 }
1987 #endif /* CONFIG_PM */
1988
1989 static int snd_ali_free(struct snd_ali * codec)
1990 {
1991         if (codec->hw_initialized)
1992                 snd_ali_disable_address_interrupt(codec);
1993         if (codec->irq >= 0)
1994                 free_irq(codec->irq, codec);
1995         if (codec->port)
1996                 pci_release_regions(codec->pci);
1997         pci_disable_device(codec->pci);
1998 #ifdef CONFIG_PM
1999         kfree(codec->image);
2000 #endif
2001         pci_dev_put(codec->pci_m1533);
2002         pci_dev_put(codec->pci_m7101);
2003         kfree(codec);
2004         return 0;
2005 }
2006
2007 static int snd_ali_chip_init(struct snd_ali *codec)
2008 {
2009         unsigned int legacy;
2010         unsigned char temp;
2011         struct pci_dev *pci_dev;
2012
2013         snd_ali_printk("chip initializing ... \n");
2014
2015         if (snd_ali_reset_5451(codec)) {
2016                 snd_printk(KERN_ERR "ali_chip_init: reset 5451 error.\n");
2017                 return -1;
2018         }
2019
2020         if (codec->revision == ALI_5451_V02) {
2021                 pci_dev = codec->pci_m1533;
2022                 pci_read_config_byte(pci_dev, 0x59, &temp);
2023                 temp |= 0x80;
2024                 pci_write_config_byte(pci_dev, 0x59, temp);
2025
2026                 pci_dev = codec->pci_m7101;
2027                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2028                 temp |= 0x20;
2029                 pci_write_config_byte(pci_dev, 0xB8, temp);
2030         }
2031
2032         pci_read_config_dword(codec->pci, 0x44, &legacy);
2033         legacy &= 0xff00ff00;
2034         legacy |= 0x000800aa;
2035         pci_write_config_dword(codec->pci, 0x44, legacy);
2036
2037         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2038         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2039         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2040         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2041         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2042
2043         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2044         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2045                                                     AC97_EXTENDED_STATUS);
2046         if (codec->spdif_support) {
2047                 snd_ali_enable_spdif_out(codec);
2048                 codec->spdif_mask = 0x00000002;
2049         }
2050
2051         codec->num_of_codecs = 1;
2052
2053         /* secondary codec - modem */
2054         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2055                 codec->num_of_codecs++;
2056                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2057                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2058                       ALI_SCTRL_LINE_OUT_EN),
2059                      ALI_REG(codec, ALI_SCTRL));
2060         }
2061
2062         snd_ali_printk("chip initialize succeed.\n");
2063         return 0;
2064
2065 }
2066
2067 /* proc for register dump */
2068 static void snd_ali_proc_read(struct snd_info_entry *entry,
2069                               struct snd_info_buffer *buf)
2070 {
2071         struct snd_ali *codec = entry->private_data;
2072         int i;
2073         for (i = 0; i < 256 ; i+= 4)
2074                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2075 }
2076
2077 static void __devinit snd_ali_proc_init(struct snd_ali *codec)
2078 {
2079         struct snd_info_entry *entry;
2080         if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2081                 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2082 }
2083
2084 static int __devinit snd_ali_resources(struct snd_ali *codec)
2085 {
2086         int err;
2087
2088         snd_ali_printk("resources allocation ...\n");
2089         err = pci_request_regions(codec->pci, "ALI 5451");
2090         if (err < 0)
2091                 return err;
2092         codec->port = pci_resource_start(codec->pci, 0);
2093
2094         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2095                         IRQF_SHARED, KBUILD_MODNAME, codec)) {
2096                 snd_printk(KERN_ERR "Unable to request irq.\n");
2097                 return -EBUSY;
2098         }
2099         codec->irq = codec->pci->irq;
2100         snd_ali_printk("resources allocated.\n");
2101         return 0;
2102 }
2103 static int snd_ali_dev_free(struct snd_device *device)
2104 {
2105         struct snd_ali *codec = device->device_data;
2106         snd_ali_free(codec);
2107         return 0;
2108 }
2109
2110 static int __devinit snd_ali_create(struct snd_card *card,
2111                                     struct pci_dev *pci,
2112                                     int pcm_streams,
2113                                     int spdif_support,
2114                                     struct snd_ali ** r_ali)
2115 {
2116         struct snd_ali *codec;
2117         int i, err;
2118         unsigned short cmdw;
2119         static struct snd_device_ops ops = {
2120                 .dev_free = snd_ali_dev_free,
2121         };
2122
2123         *r_ali = NULL;
2124
2125         snd_ali_printk("creating ...\n");
2126
2127         /* enable PCI device */
2128         err = pci_enable_device(pci);
2129         if (err < 0)
2130                 return err;
2131         /* check, if we can restrict PCI DMA transfers to 31 bits */
2132         if (pci_set_dma_mask(pci, DMA_BIT_MASK(31)) < 0 ||
2133             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(31)) < 0) {
2134                 snd_printk(KERN_ERR "architecture does not support "
2135                            "31bit PCI busmaster DMA\n");
2136                 pci_disable_device(pci);
2137                 return -ENXIO;
2138         }
2139
2140         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2141         if (!codec) {
2142                 pci_disable_device(pci);
2143                 return -ENOMEM;
2144         }
2145
2146         spin_lock_init(&codec->reg_lock);
2147         spin_lock_init(&codec->voice_alloc);
2148
2149         codec->card = card;
2150         codec->pci = pci;
2151         codec->irq = -1;
2152         codec->revision = pci->revision;
2153         codec->spdif_support = spdif_support;
2154
2155         if (pcm_streams < 1)
2156                 pcm_streams = 1;
2157         if (pcm_streams > 32)
2158                 pcm_streams = 32;
2159
2160         pci_set_master(pci);
2161         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2162         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2163                 cmdw |= PCI_COMMAND_IO;
2164                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2165         }
2166         pci_set_master(pci);
2167
2168         if (snd_ali_resources(codec)) {
2169                 snd_ali_free(codec);
2170                 return -EBUSY;
2171         }
2172
2173         synchronize_irq(pci->irq);
2174
2175         codec->synth.chmap = 0;
2176         codec->synth.chcnt = 0;
2177         codec->spdif_mask = 0;
2178         codec->synth.synthcount = 0;
2179
2180         if (codec->revision == ALI_5451_V02)
2181                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2182         else
2183                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2184         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2185
2186         codec->chregs.regs.start  = ALI_START;
2187         codec->chregs.regs.stop   = ALI_STOP;
2188         codec->chregs.regs.aint   = ALI_AINT;
2189         codec->chregs.regs.ainten = ALI_AINTEN;
2190
2191         codec->chregs.data.start  = 0x00;
2192         codec->chregs.data.stop   = 0x00;
2193         codec->chregs.data.aint   = 0x00;
2194         codec->chregs.data.ainten = 0x00;
2195
2196         /* M1533: southbridge */
2197         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2198         if (!codec->pci_m1533) {
2199                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2200                 snd_ali_free(codec);
2201                 return -ENODEV;
2202         }
2203         /* M7101: power management */
2204         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2205         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2206                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2207                 snd_ali_free(codec);
2208                 return -ENODEV;
2209         }
2210
2211         snd_ali_printk("snd_device_new is called.\n");
2212         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2213         if (err < 0) {
2214                 snd_ali_free(codec);
2215                 return err;
2216         }
2217
2218         snd_card_set_dev(card, &pci->dev);
2219
2220         /* initialise synth voices*/
2221         for (i = 0; i < ALI_CHANNELS; i++)
2222                 codec->synth.voices[i].number = i;
2223
2224         err = snd_ali_chip_init(codec);
2225         if (err < 0) {
2226                 snd_printk(KERN_ERR "ali create: chip init error.\n");
2227                 return err;
2228         }
2229
2230 #ifdef CONFIG_PM
2231         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2232         if (!codec->image)
2233                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2234 #endif
2235
2236         snd_ali_enable_address_interrupt(codec);
2237         codec->hw_initialized = 1;
2238
2239         *r_ali = codec;
2240         snd_ali_printk("created.\n");
2241         return 0;
2242 }
2243
2244 static int __devinit snd_ali_probe(struct pci_dev *pci,
2245                                    const struct pci_device_id *pci_id)
2246 {
2247         struct snd_card *card;
2248         struct snd_ali *codec;
2249         int err;
2250
2251         snd_ali_printk("probe ...\n");
2252
2253         err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2254         if (err < 0)
2255                 return err;
2256
2257         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2258         if (err < 0)
2259                 goto error;
2260         card->private_data = codec;
2261
2262         snd_ali_printk("mixer building ...\n");
2263         err = snd_ali_mixer(codec);
2264         if (err < 0)
2265                 goto error;
2266
2267         snd_ali_printk("pcm building ...\n");
2268         err = snd_ali_build_pcms(codec);
2269         if (err < 0)
2270                 goto error;
2271
2272         snd_ali_proc_init(codec);
2273
2274         strcpy(card->driver, "ALI5451");
2275         strcpy(card->shortname, "ALI 5451");
2276
2277         sprintf(card->longname, "%s at 0x%lx, irq %i",
2278                 card->shortname, codec->port, codec->irq);
2279
2280         snd_ali_printk("register card.\n");
2281         err = snd_card_register(card);
2282         if (err < 0)
2283                 goto error;
2284
2285         pci_set_drvdata(pci, card);
2286         return 0;
2287
2288  error:
2289         snd_card_free(card);
2290         return err;
2291 }
2292
2293 static void __devexit snd_ali_remove(struct pci_dev *pci)
2294 {
2295         snd_card_free(pci_get_drvdata(pci));
2296         pci_set_drvdata(pci, NULL);
2297 }
2298
2299 static struct pci_driver driver = {
2300         .name = KBUILD_MODNAME,
2301         .id_table = snd_ali_ids,
2302         .probe = snd_ali_probe,
2303         .remove = __devexit_p(snd_ali_remove),
2304 #ifdef CONFIG_PM
2305         .suspend = ali_suspend,
2306         .resume = ali_resume,
2307 #endif
2308 };
2309
2310 static int __init alsa_card_ali_init(void)
2311 {
2312         return pci_register_driver(&driver);
2313 }
2314
2315 static void __exit alsa_card_ali_exit(void)
2316 {
2317         pci_unregister_driver(&driver);
2318 }
2319
2320 module_init(alsa_card_ali_init)
2321 module_exit(alsa_card_ali_exit)