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 bool 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 bool 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_SLEEP
 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                 mdelay(5);
 455                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 456                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 457                 mdelay(5);
 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         mdelay(5);
 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                 mdelay(5);
 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_ali_channel_control *pchregs;
 859         unsigned int old, mask;
 860 #ifdef ALI_DEBUG
 861         unsigned int temp, cspf;
 862 #endif
 863
 864         pchregs = &(codec->chregs);
 865
 866         /* check if interrupt occurred for channel */
 867         old  = pchregs->data.aint;
 868         mask = 1U << (channel & 0x1f);
 869
 870         if (!(old & mask))
 871                 return;
 872
 873         pvoice = &codec->synth.voices[channel];
 874
 875         udelay(100);
 876         spin_lock(&codec->reg_lock);
 877
 878         if (pvoice->pcm && pvoice->substream) {
 879                 /* pcm interrupt */
 880 #ifdef ALI_DEBUG
 881                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
 882                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
 883                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
 884 #endif
 885                 if (pvoice->running) {
 886                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",
 887                                        (u16)temp, cspf);
 888                         spin_unlock(&codec->reg_lock);
 889                         snd_pcm_period_elapsed(pvoice->substream);
 890                         spin_lock(&codec->reg_lock);
 891                 } else {
 892                         snd_ali_stop_voice(codec, channel);
 893                         snd_ali_disable_voice_irq(codec, channel);
 894                 }
 895         } else if (codec->synth.voices[channel].synth) {
 896                 /* synth interrupt */
 897         } else if (codec->synth.voices[channel].midi) {
 898                 /* midi interrupt */
 899         } else {
 900                 /* unknown interrupt */
 901                 snd_ali_stop_voice(codec, channel);
 902                 snd_ali_disable_voice_irq(codec, channel);
 903         }
 904         spin_unlock(&codec->reg_lock);
 905         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 906         pchregs->data.aint = old & (~mask);
 907 }
 908
 909 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 910 {
 911         struct snd_ali  *codec = dev_id;
 912         int channel;
 913         unsigned int audio_int;
 914         struct snd_ali_channel_control *pchregs;
 915
 916         if (codec == NULL || !codec->hw_initialized)
 917                 return IRQ_NONE;
 918
 919         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 920         if (!audio_int)
 921                 return IRQ_NONE;
 922
 923         pchregs = &(codec->chregs);
 924         if (audio_int & ADDRESS_IRQ) {
 925                 /* get interrupt status for all channels */
 926                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 927                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 928                         snd_ali_update_ptr(codec, channel);
 929         }
 930         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 931                 ALI_REG(codec, ALI_MISCINT));
 932
 933         return IRQ_HANDLED;
 934 }
 935
 936
 937 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 938                                                  int type, int rec, int channel)
 939 {
 940         struct snd_ali_voice *pvoice;
 941         int idx;
 942
 943         snd_ali_printk("alloc_voice: type=%d rec=%d\n", type, rec);
 944
 945         spin_lock_irq(&codec->voice_alloc);
 946         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 947                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 948                         snd_ali_find_free_channel(codec,rec);
 949                 if (idx < 0) {
 950                         snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
 951                         spin_unlock_irq(&codec->voice_alloc);
 952                         return NULL;
 953                 }
 954                 pvoice = &(codec->synth.voices[idx]);
 955                 pvoice->codec = codec;
 956                 pvoice->use = 1;
 957                 pvoice->pcm = 1;
 958                 pvoice->mode = rec;
 959                 spin_unlock_irq(&codec->voice_alloc);
 960                 return pvoice;
 961         }
 962         spin_unlock_irq(&codec->voice_alloc);
 963         return NULL;
 964 }
 965
 966
 967 static void snd_ali_free_voice(struct snd_ali * codec,
 968                                struct snd_ali_voice *pvoice)
 969 {
 970         void (*private_free)(void *);
 971         void *private_data;
 972
 973         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
 974         if (!pvoice->use)
 975                 return;
 976         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 977         spin_lock_irq(&codec->voice_alloc);
 978         private_free = pvoice->private_free;
 979         private_data = pvoice->private_data;
 980         pvoice->private_free = NULL;
 981         pvoice->private_data = NULL;
 982         if (pvoice->pcm)
 983                 snd_ali_free_channel_pcm(codec, pvoice->number);
 984         pvoice->use = pvoice->pcm = pvoice->synth = 0;
 985         pvoice->substream = NULL;
 986         spin_unlock_irq(&codec->voice_alloc);
 987         if (private_free)
 988                 private_free(private_data);
 989 }
 990
 991
 992 static void snd_ali_clear_voices(struct snd_ali *codec,
 993                                  unsigned int v_min,
 994                                  unsigned int v_max)
 995 {
 996         unsigned int i;
 997
 998         for (i = v_min; i <= v_max; i++) {
 999                 snd_ali_stop_voice(codec, i);
1000                 snd_ali_disable_voice_irq(codec, i);
1001         }
1002 }
1003
1004 static void snd_ali_write_voice_regs(struct snd_ali *codec,
1005                          unsigned int Channel,
1006                          unsigned int LBA,
1007                          unsigned int CSO,
1008                          unsigned int ESO,
1009                          unsigned int DELTA,
1010                          unsigned int ALPHA_FMS,
1011                          unsigned int GVSEL,
1012                          unsigned int PAN,
1013                          unsigned int VOL,
1014                          unsigned int CTRL,
1015                          unsigned int EC)
1016 {
1017         unsigned int ctlcmds[4];
1018
1019         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1020
1021         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1022         ctlcmds[1] =  LBA;
1023         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1024         ctlcmds[3] =  (GVSEL << 31) |
1025                       ((PAN & 0x0000007f) << 24) |
1026                       ((VOL & 0x000000ff) << 16) |
1027                       ((CTRL & 0x0000000f) << 12) |
1028                       (EC & 0x00000fff);
1029
1030         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1031
1032         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1033         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1034         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1035         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1036
1037         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1038         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1039 }
1040
1041 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1042 {
1043         unsigned int delta;
1044
1045         if (rate < 4000)
1046                 rate = 4000;
1047         if (rate > 48000)
1048                 rate = 48000;
1049
1050         if (rec) {
1051                 if (rate == 44100)
1052                         delta = 0x116a;
1053                 else if (rate == 8000)
1054                         delta = 0x6000;
1055                 else if (rate == 48000)
1056                         delta = 0x1000;
1057                 else
1058                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1059         } else {
1060                 if (rate == 44100)
1061                         delta = 0xeb3;
1062                 else if (rate == 8000)
1063                         delta = 0x2ab;
1064                 else if (rate == 48000)
1065                         delta = 0x1000;
1066                 else
1067                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1068         }
1069
1070         return delta;
1071 }
1072
1073 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1074 {
1075         unsigned int CTRL;
1076         struct snd_pcm_runtime *runtime = substream->runtime;
1077
1078         /* set ctrl mode
1079            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1080          */
1081         CTRL = 0x00000001;
1082         if (snd_pcm_format_width(runtime->format) == 16)
1083                 CTRL |= 0x00000008;     /* 16-bit data */
1084         if (!snd_pcm_format_unsigned(runtime->format))
1085                 CTRL |= 0x00000002;     /* signed data */
1086         if (runtime->channels > 1)
1087                 CTRL |= 0x00000004;     /* stereo data */
1088         return CTRL;
1089 }
1090
1091 /*
1092  *  PCM part
1093  */
1094
1095 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1096                                int cmd)
1097
1098 {
1099         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1100         struct snd_pcm_substream *s;
1101         unsigned int what, whati, capture_flag;
1102         struct snd_ali_voice *pvoice, *evoice;
1103         unsigned int val;
1104         int do_start;
1105
1106         switch (cmd) {
1107         case SNDRV_PCM_TRIGGER_START:
1108         case SNDRV_PCM_TRIGGER_RESUME:
1109                 do_start = 1;
1110                 break;
1111         case SNDRV_PCM_TRIGGER_STOP:
1112         case SNDRV_PCM_TRIGGER_SUSPEND:
1113                 do_start = 0;
1114                 break;
1115         default:
1116                 return -EINVAL;
1117         }
1118
1119         what = whati = capture_flag = 0;
1120         snd_pcm_group_for_each_entry(s, substream) {
1121                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1122                         pvoice = s->runtime->private_data;
1123                         evoice = pvoice->extra;
1124                         what |= 1 << (pvoice->number & 0x1f);
1125                         if (evoice == NULL)
1126                                 whati |= 1 << (pvoice->number & 0x1f);
1127                         else {
1128                                 whati |= 1 << (evoice->number & 0x1f);
1129                                 what |= 1 << (evoice->number & 0x1f);
1130                         }
1131                         if (do_start) {
1132                                 pvoice->running = 1;
1133                                 if (evoice != NULL)
1134                                         evoice->running = 1;
1135                         } else {
1136                                 pvoice->running = 0;
1137                                 if (evoice != NULL)
1138                                         evoice->running = 0;
1139                         }
1140                         snd_pcm_trigger_done(s, substream);
1141                         if (pvoice->mode)
1142                                 capture_flag = 1;
1143                 }
1144         }
1145         spin_lock(&codec->reg_lock);
1146         if (!do_start)
1147                 outl(what, ALI_REG(codec, ALI_STOP));
1148         val = inl(ALI_REG(codec, ALI_AINTEN));
1149         if (do_start)
1150                 val |= whati;
1151         else
1152                 val &= ~whati;
1153         outl(val, ALI_REG(codec, ALI_AINTEN));
1154         if (do_start)
1155                 outl(what, ALI_REG(codec, ALI_START));
1156         snd_ali_printk("trigger: what=%xh whati=%xh\n", what, whati);
1157         spin_unlock(&codec->reg_lock);
1158
1159         return 0;
1160 }
1161
1162 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1163                                       struct snd_pcm_hw_params *hw_params)
1164 {
1165         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1166         struct snd_pcm_runtime *runtime = substream->runtime;
1167         struct snd_ali_voice *pvoice = runtime->private_data;
1168         struct snd_ali_voice *evoice = pvoice->extra;
1169         int err;
1170
1171         err = snd_pcm_lib_malloc_pages(substream,
1172                                        params_buffer_bytes(hw_params));
1173         if (err < 0)
1174                 return err;
1175
1176         /* voice management */
1177
1178         if (params_buffer_size(hw_params) / 2 !=
1179             params_period_size(hw_params)) {
1180                 if (!evoice) {
1181                         evoice = snd_ali_alloc_voice(codec,
1182                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1183                                                      0, -1);
1184                         if (!evoice)
1185                                 return -ENOMEM;
1186                         pvoice->extra = evoice;
1187                         evoice->substream = substream;
1188                 }
1189         } else {
1190                 if (evoice) {
1191                         snd_ali_free_voice(codec, evoice);
1192                         pvoice->extra = evoice = NULL;
1193                 }
1194         }
1195
1196         return 0;
1197 }
1198
1199 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1200 {
1201         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1202         struct snd_pcm_runtime *runtime = substream->runtime;
1203         struct snd_ali_voice *pvoice = runtime->private_data;
1204         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1205
1206         snd_pcm_lib_free_pages(substream);
1207         if (evoice) {
1208                 snd_ali_free_voice(codec, evoice);
1209                 pvoice->extra = NULL;
1210         }
1211         return 0;
1212 }
1213
1214 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1215                              struct snd_pcm_hw_params *hw_params)
1216 {
1217         return snd_pcm_lib_malloc_pages(substream,
1218                                         params_buffer_bytes(hw_params));
1219 }
1220
1221 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1222 {
1223         return snd_pcm_lib_free_pages(substream);
1224 }
1225
1226 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1227 {
1228         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1229         struct snd_pcm_runtime *runtime = substream->runtime;
1230         struct snd_ali_voice *pvoice = runtime->private_data;
1231         struct snd_ali_voice *evoice = pvoice->extra;
1232
1233         unsigned int LBA;
1234         unsigned int Delta;
1235         unsigned int ESO;
1236         unsigned int CTRL;
1237         unsigned int GVSEL;
1238         unsigned int PAN;
1239         unsigned int VOL;
1240         unsigned int EC;
1241
1242         snd_ali_printk("playback_prepare ...\n");
1243
1244         spin_lock_irq(&codec->reg_lock);
1245
1246         /* set Delta (rate) value */
1247         Delta = snd_ali_convert_rate(runtime->rate, 0);
1248
1249         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1250             pvoice->number == ALI_PCM_IN_CHANNEL)
1251                 snd_ali_disable_special_channel(codec, pvoice->number);
1252         else if (codec->spdif_support &&
1253                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1254                   ALI_SPDIF_OUT_CH_ENABLE)
1255                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1256                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1257                 Delta = 0x1000;
1258         }
1259
1260         /* set Loop Back Address */
1261         LBA = runtime->dma_addr;
1262
1263         /* set interrupt count size */
1264         pvoice->count = runtime->period_size;
1265
1266         /* set target ESO for channel */
1267         pvoice->eso = runtime->buffer_size;
1268
1269         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",
1270                        pvoice->eso, pvoice->count);
1271
1272         /* set ESO to capture first MIDLP interrupt */
1273         ESO = pvoice->eso -1;
1274         /* set ctrl mode */
1275         CTRL = snd_ali_control_mode(substream);
1276
1277         GVSEL = 1;
1278         PAN = 0;
1279         VOL = 0;
1280         EC = 0;
1281         snd_ali_printk("playback_prepare:\n");
1282         snd_ali_printk("ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1283                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1284         snd_ali_write_voice_regs(codec,
1285                                  pvoice->number,
1286                                  LBA,
1287                                  0,     /* cso */
1288                                  ESO,
1289                                  Delta,
1290                                  0,     /* alpha */
1291                                  GVSEL,
1292                                  PAN,
1293                                  VOL,
1294                                  CTRL,
1295                                  EC);
1296         if (evoice) {
1297                 evoice->count = pvoice->count;
1298                 evoice->eso = pvoice->count << 1;
1299                 ESO = evoice->eso - 1;
1300                 snd_ali_write_voice_regs(codec,
1301                                          evoice->number,
1302                                          LBA,
1303                                          0,     /* cso */
1304                                          ESO,
1305                                          Delta,
1306                                          0,     /* alpha */
1307                                          GVSEL,
1308                                          0x7f,
1309                                          0x3ff,
1310                                          CTRL,
1311                                          EC);
1312         }
1313         spin_unlock_irq(&codec->reg_lock);
1314         return 0;
1315 }
1316
1317
1318 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1319 {
1320         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1321         struct snd_pcm_runtime *runtime = substream->runtime;
1322         struct snd_ali_voice *pvoice = runtime->private_data;
1323         unsigned int LBA;
1324         unsigned int Delta;
1325         unsigned int ESO;
1326         unsigned int CTRL;
1327         unsigned int GVSEL;
1328         unsigned int PAN;
1329         unsigned int VOL;
1330         unsigned int EC;
1331         u8       bValue;
1332
1333         spin_lock_irq(&codec->reg_lock);
1334
1335         snd_ali_printk("ali_prepare...\n");
1336
1337         snd_ali_enable_special_channel(codec,pvoice->number);
1338
1339         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1340                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1341                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1342
1343         /* Prepare capture intr channel */
1344         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1345
1346                 unsigned int rate;
1347
1348                 spin_unlock_irq(&codec->reg_lock);
1349                 if (codec->revision != ALI_5451_V02)
1350                         return -1;
1351
1352                 rate = snd_ali_get_spdif_in_rate(codec);
1353                 if (rate == 0) {
1354                         snd_printk(KERN_WARNING "ali_capture_preapre: "
1355                                    "spdif rate detect err!\n");
1356                         rate = 48000;
1357                 }
1358                 spin_lock_irq(&codec->reg_lock);
1359                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1360                 if (bValue & 0x10) {
1361                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1362                         printk(KERN_WARNING "clear SPDIF parity error flag.\n");
1363                 }
1364
1365                 if (rate != 48000)
1366                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1367         }
1368
1369         /* set target ESO for channel  */
1370         pvoice->eso = runtime->buffer_size;
1371
1372         /* set interrupt count size  */
1373         pvoice->count = runtime->period_size;
1374
1375         /* set Loop Back Address  */
1376         LBA = runtime->dma_addr;
1377
1378         /* set ESO to capture first MIDLP interrupt  */
1379         ESO = pvoice->eso - 1;
1380         CTRL = snd_ali_control_mode(substream);
1381         GVSEL = 0;
1382         PAN = 0x00;
1383         VOL = 0x00;
1384         EC = 0;
1385
1386         snd_ali_write_voice_regs(    codec,
1387                                      pvoice->number,
1388                                      LBA,
1389                                      0, /* cso */
1390                                      ESO,
1391                                      Delta,
1392                                      0, /* alpha */
1393                                      GVSEL,
1394                                      PAN,
1395                                      VOL,
1396                                      CTRL,
1397                                      EC);
1398
1399         spin_unlock_irq(&codec->reg_lock);
1400
1401         return 0;
1402 }
1403
1404
1405 static snd_pcm_uframes_t
1406 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1407 {
1408         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1409         struct snd_pcm_runtime *runtime = substream->runtime;
1410         struct snd_ali_voice *pvoice = runtime->private_data;
1411         unsigned int cso;
1412
1413         spin_lock(&codec->reg_lock);
1414         if (!pvoice->running) {
1415                 spin_unlock(&codec->reg_lock);
1416                 return 0;
1417         }
1418         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1419         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1420         spin_unlock(&codec->reg_lock);
1421         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1422
1423         return cso;
1424 }
1425
1426
1427 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1428 {
1429         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1430         struct snd_pcm_runtime *runtime = substream->runtime;
1431         struct snd_ali_voice *pvoice = runtime->private_data;
1432         unsigned int cso;
1433
1434         spin_lock(&codec->reg_lock);
1435         if (!pvoice->running) {
1436                 spin_unlock(&codec->reg_lock);
1437                 return 0;
1438         }
1439         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1440         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1441         spin_unlock(&codec->reg_lock);
1442
1443         return cso;
1444 }
1445
1446 static struct snd_pcm_hardware snd_ali_playback =
1447 {
1448         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1449                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1450                          SNDRV_PCM_INFO_MMAP_VALID |
1451                          SNDRV_PCM_INFO_RESUME |
1452                          SNDRV_PCM_INFO_SYNC_START),
1453         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1454                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1455         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1456         .rate_min =             4000,
1457         .rate_max =             48000,
1458         .channels_min =         1,
1459         .channels_max =         2,
1460         .buffer_bytes_max =     (256*1024),
1461         .period_bytes_min =     64,
1462         .period_bytes_max =     (256*1024),
1463         .periods_min =          1,
1464         .periods_max =          1024,
1465         .fifo_size =            0,
1466 };
1467
1468 /*
1469  *  Capture support device description
1470  */
1471
1472 static struct snd_pcm_hardware snd_ali_capture =
1473 {
1474         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1475                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1476                          SNDRV_PCM_INFO_MMAP_VALID |
1477                          SNDRV_PCM_INFO_RESUME |
1478                          SNDRV_PCM_INFO_SYNC_START),
1479         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1480                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1481         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1482         .rate_min =             4000,
1483         .rate_max =             48000,
1484         .channels_min =         1,
1485         .channels_max =         2,
1486         .buffer_bytes_max =     (128*1024),
1487         .period_bytes_min =     64,
1488         .period_bytes_max =     (128*1024),
1489         .periods_min =          1,
1490         .periods_max =          1024,
1491         .fifo_size =            0,
1492 };
1493
1494 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1495 {
1496         struct snd_ali_voice *pvoice = runtime->private_data;
1497         struct snd_ali *codec;
1498
1499         if (pvoice) {
1500                 codec = pvoice->codec;
1501                 snd_ali_free_voice(pvoice->codec, pvoice);
1502         }
1503 }
1504
1505 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1506                         int channel, struct snd_pcm_hardware *phw)
1507 {
1508         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1509         struct snd_pcm_runtime *runtime = substream->runtime;
1510         struct snd_ali_voice *pvoice;
1511
1512         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1513                                      channel);
1514         if (!pvoice)
1515                 return -EAGAIN;
1516
1517         pvoice->substream = substream;
1518         runtime->private_data = pvoice;
1519         runtime->private_free = snd_ali_pcm_free_substream;
1520
1521         runtime->hw = *phw;
1522         snd_pcm_set_sync(substream);
1523         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1524                                      0, 64*1024);
1525         return 0;
1526 }
1527
1528 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1529 {
1530         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1531 }
1532
1533 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1534 {
1535         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1536 }
1537
1538 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1539 {
1540         return 0;
1541 }
1542
1543 static int snd_ali_close(struct snd_pcm_substream *substream)
1544 {
1545         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1546         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1547
1548         snd_ali_disable_special_channel(codec,pvoice->number);
1549
1550         return 0;
1551 }
1552
1553 static struct snd_pcm_ops snd_ali_playback_ops = {
1554         .open =         snd_ali_playback_open,
1555         .close =        snd_ali_playback_close,
1556         .ioctl =        snd_pcm_lib_ioctl,
1557         .hw_params =    snd_ali_playback_hw_params,
1558         .hw_free =      snd_ali_playback_hw_free,
1559         .prepare =      snd_ali_playback_prepare,
1560         .trigger =      snd_ali_trigger,
1561         .pointer =      snd_ali_playback_pointer,
1562 };
1563
1564 static struct snd_pcm_ops snd_ali_capture_ops = {
1565         .open =         snd_ali_capture_open,
1566         .close =        snd_ali_close,
1567         .ioctl =        snd_pcm_lib_ioctl,
1568         .hw_params =    snd_ali_hw_params,
1569         .hw_free =      snd_ali_hw_free,
1570         .prepare =      snd_ali_prepare,
1571         .trigger =      snd_ali_trigger,
1572         .pointer =      snd_ali_pointer,
1573 };
1574
1575 /*
1576  * Modem PCM
1577  */
1578
1579 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1580                                  struct snd_pcm_hw_params *hw_params)
1581 {
1582         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1583         unsigned int modem_num = chip->num_of_codecs - 1;
1584         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1585                        params_rate(hw_params));
1586         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1587         return snd_ali_hw_params(substream, hw_params);
1588 }
1589
1590 static struct snd_pcm_hardware snd_ali_modem =
1591 {
1592         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1593                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1594                          SNDRV_PCM_INFO_MMAP_VALID |
1595                          SNDRV_PCM_INFO_RESUME |
1596                          SNDRV_PCM_INFO_SYNC_START),
1597         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1598         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1599                          SNDRV_PCM_RATE_16000),
1600         .rate_min =             8000,
1601         .rate_max =             16000,
1602         .channels_min =         1,
1603         .channels_max =         1,
1604         .buffer_bytes_max =     (256*1024),
1605         .period_bytes_min =     64,
1606         .period_bytes_max =     (256*1024),
1607         .periods_min =          1,
1608         .periods_max =          1024,
1609         .fifo_size =            0,
1610 };
1611
1612 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1613                               int channel)
1614 {
1615         static unsigned int rates[] = {8000, 9600, 12000, 16000};
1616         static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1617                 .count = ARRAY_SIZE(rates),
1618                 .list = rates,
1619                 .mask = 0,
1620         };
1621         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1622
1623         if (err)
1624                 return err;
1625         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1626                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1627 }
1628
1629 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1630 {
1631         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1632 }
1633
1634 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1635 {
1636         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1637 }
1638
1639 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1640         .open =         snd_ali_modem_playback_open,
1641         .close =        snd_ali_close,
1642         .ioctl =        snd_pcm_lib_ioctl,
1643         .hw_params =    snd_ali_modem_hw_params,
1644         .hw_free =      snd_ali_hw_free,
1645         .prepare =      snd_ali_prepare,
1646         .trigger =      snd_ali_trigger,
1647         .pointer =      snd_ali_pointer,
1648 };
1649
1650 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1651         .open =         snd_ali_modem_capture_open,
1652         .close =        snd_ali_close,
1653         .ioctl =        snd_pcm_lib_ioctl,
1654         .hw_params =    snd_ali_modem_hw_params,
1655         .hw_free =      snd_ali_hw_free,
1656         .prepare =      snd_ali_prepare,
1657         .trigger =      snd_ali_trigger,
1658         .pointer =      snd_ali_pointer,
1659 };
1660
1661
1662 struct ali_pcm_description {
1663         char *name;
1664         unsigned int playback_num;
1665         unsigned int capture_num;
1666         struct snd_pcm_ops *playback_ops;
1667         struct snd_pcm_ops *capture_ops;
1668         unsigned short class;
1669 };
1670
1671
1672 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1673 {
1674         struct snd_ali *codec = pcm->private_data;
1675         codec->pcm[pcm->device] = NULL;
1676 }
1677
1678
1679 static int snd_ali_pcm(struct snd_ali *codec, int device,
1680                        struct ali_pcm_description *desc)
1681 {
1682         struct snd_pcm *pcm;
1683         int err;
1684
1685         err = snd_pcm_new(codec->card, desc->name, device,
1686                           desc->playback_num, desc->capture_num, &pcm);
1687         if (err < 0) {
1688                 snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
1689                 return err;
1690         }
1691         pcm->private_data = codec;
1692         pcm->private_free = snd_ali_pcm_free;
1693         if (desc->playback_ops)
1694                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1695                                 desc->playback_ops);
1696         if (desc->capture_ops)
1697                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1698                                 desc->capture_ops);
1699
1700         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1701                                               snd_dma_pci_data(codec->pci),
1702                                               64*1024, 128*1024);
1703
1704         pcm->info_flags = 0;
1705         pcm->dev_class = desc->class;
1706         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1707         strcpy(pcm->name, desc->name);
1708         codec->pcm[0] = pcm;
1709         return 0;
1710 }
1711
1712 static struct ali_pcm_description ali_pcms[] = {
1713         { .name = "ALI 5451",
1714           .playback_num = ALI_CHANNELS,
1715           .capture_num = 1,
1716           .playback_ops = &snd_ali_playback_ops,
1717           .capture_ops = &snd_ali_capture_ops
1718         },
1719         { .name = "ALI 5451 modem",
1720           .playback_num = 1,
1721           .capture_num = 1,
1722           .playback_ops = &snd_ali_modem_playback_ops,
1723           .capture_ops = &snd_ali_modem_capture_ops,
1724           .class = SNDRV_PCM_CLASS_MODEM
1725         }
1726 };
1727
1728 static int snd_ali_build_pcms(struct snd_ali *codec)
1729 {
1730         int i, err;
1731         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1732                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1733                 if (err < 0)
1734                         return err;
1735         }
1736         return 0;
1737 }
1738
1739
1740 #define ALI5451_SPDIF(xname, xindex, value) \
1741 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1742 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1743 .put = snd_ali5451_spdif_put, .private_value = value}
1744
1745 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1746
1747 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1748                                  struct snd_ctl_elem_value *ucontrol)
1749 {
1750         struct snd_ali *codec = kcontrol->private_data;
1751         unsigned int spdif_enable;
1752
1753         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1754
1755         spin_lock_irq(&codec->reg_lock);
1756         switch (kcontrol->private_value) {
1757         case 0:
1758                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1759                 break;
1760         case 1:
1761                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1762                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1763                 break;
1764         case 2:
1765                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1766                 break;
1767         default:
1768                 break;
1769         }
1770         ucontrol->value.integer.value[0] = spdif_enable;
1771         spin_unlock_irq(&codec->reg_lock);
1772         return 0;
1773 }
1774
1775 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1776                                  struct snd_ctl_elem_value *ucontrol)
1777 {
1778         struct snd_ali *codec = kcontrol->private_data;
1779         unsigned int change = 0, spdif_enable = 0;
1780
1781         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1782
1783         spin_lock_irq(&codec->reg_lock);
1784         switch (kcontrol->private_value) {
1785         case 0:
1786                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1787                 change = change ^ spdif_enable;
1788                 if (change) {
1789                         if (spdif_enable) {
1790                                 codec->spdif_mask |= 0x02;
1791                                 snd_ali_enable_spdif_out(codec);
1792                         } else {
1793                                 codec->spdif_mask &= ~(0x02);
1794                                 codec->spdif_mask &= ~(0x04);
1795                                 snd_ali_disable_spdif_out(codec);
1796                         }
1797                 }
1798                 break;
1799         case 1:
1800                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1801                 change = change ^ spdif_enable;
1802                 if (change && (codec->spdif_mask & 0x02)) {
1803                         if (spdif_enable) {
1804                                 codec->spdif_mask |= 0x04;
1805                                 snd_ali_enable_spdif_chnout(codec);
1806                         } else {
1807                                 codec->spdif_mask &= ~(0x04);
1808                                 snd_ali_disable_spdif_chnout(codec);
1809                         }
1810                 }
1811                 break;
1812         case 2:
1813                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1814                 change = change ^ spdif_enable;
1815                 if (change) {
1816                         if (spdif_enable) {
1817                                 codec->spdif_mask |= 0x01;
1818                                 snd_ali_enable_spdif_in(codec);
1819                         } else {
1820                                 codec->spdif_mask &= ~(0x01);
1821                                 snd_ali_disable_spdif_in(codec);
1822                         }
1823                 }
1824                 break;
1825         default:
1826                 break;
1827         }
1828         spin_unlock_irq(&codec->reg_lock);
1829
1830         return change;
1831 }
1832
1833 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1834         /* spdif aplayback switch */
1835         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1836         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1837         /* spdif out to spdif channel */
1838         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1839         /* spdif in from spdif channel */
1840         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1841 };
1842
1843 static int snd_ali_mixer(struct snd_ali *codec)
1844 {
1845         struct snd_ac97_template ac97;
1846         unsigned int idx;
1847         int i, err;
1848         static struct snd_ac97_bus_ops ops = {
1849                 .write = snd_ali_codec_write,
1850                 .read = snd_ali_codec_read,
1851         };
1852
1853         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1854         if (err < 0)
1855                 return err;
1856
1857         memset(&ac97, 0, sizeof(ac97));
1858         ac97.private_data = codec;
1859
1860         for (i = 0; i < codec->num_of_codecs; i++) {
1861                 ac97.num = i;
1862                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1863                 if (err < 0) {
1864                         snd_printk(KERN_ERR
1865                                    "ali mixer %d creating error.\n", i);
1866                         if (i == 0)
1867                                 return err;
1868                         codec->num_of_codecs = 1;
1869                         break;
1870                 }
1871         }
1872
1873         if (codec->spdif_support) {
1874                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1875                         err = snd_ctl_add(codec->card,
1876                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1877                         if (err < 0)
1878                                 return err;
1879                 }
1880         }
1881         return 0;
1882 }
1883
1884 #ifdef CONFIG_PM_SLEEP
1885 static int ali_suspend(struct device *dev)
1886 {
1887         struct pci_dev *pci = to_pci_dev(dev);
1888         struct snd_card *card = dev_get_drvdata(dev);
1889         struct snd_ali *chip = card->private_data;
1890         struct snd_ali_image *im;
1891         int i, j;
1892
1893         im = chip->image;
1894         if (!im)
1895                 return 0;
1896
1897         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1898         for (i = 0; i < chip->num_of_codecs; i++) {
1899                 snd_pcm_suspend_all(chip->pcm[i]);
1900                 snd_ac97_suspend(chip->ac97[i]);
1901         }
1902
1903         spin_lock_irq(&chip->reg_lock);
1904
1905         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1906         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1907         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1908
1909         /* disable all IRQ bits */
1910         outl(0, ALI_REG(chip, ALI_MISCINT));
1911
1912         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1913                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1914                         continue;
1915                 im->regs[i] = inl(ALI_REG(chip, i*4));
1916         }
1917
1918         for (i = 0; i < ALI_CHANNELS; i++) {
1919                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1920                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1921                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1922         }
1923
1924         /* stop all HW channel */
1925         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1926
1927         spin_unlock_irq(&chip->reg_lock);
1928
1929         pci_disable_device(pci);
1930         pci_save_state(pci);
1931         pci_set_power_state(pci, PCI_D3hot);
1932         return 0;
1933 }
1934
1935 static int ali_resume(struct device *dev)
1936 {
1937         struct pci_dev *pci = to_pci_dev(dev);
1938         struct snd_card *card = dev_get_drvdata(dev);
1939         struct snd_ali *chip = card->private_data;
1940         struct snd_ali_image *im;
1941         int i, j;
1942
1943         im = chip->image;
1944         if (!im)
1945                 return 0;
1946
1947         pci_set_power_state(pci, PCI_D0);
1948         pci_restore_state(pci);
1949         if (pci_enable_device(pci) < 0) {
1950                 printk(KERN_ERR "ali5451: pci_enable_device failed, "
1951                        "disabling device\n");
1952                 snd_card_disconnect(card);
1953                 return -EIO;
1954         }
1955         pci_set_master(pci);
1956
1957         spin_lock_irq(&chip->reg_lock);
1958
1959         for (i = 0; i < ALI_CHANNELS; i++) {
1960                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1961                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1962                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1963         }
1964
1965         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1966                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1967                     (i*4 == ALI_START))
1968                         continue;
1969                 outl(im->regs[i], ALI_REG(chip, i*4));
1970         }
1971
1972         /* start HW channel */
1973         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1974         /* restore IRQ enable bits */
1975         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1976
1977         spin_unlock_irq(&chip->reg_lock);
1978
1979         for (i = 0 ; i < chip->num_of_codecs; i++)
1980                 snd_ac97_resume(chip->ac97[i]);
1981
1982         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1983         return 0;
1984 }
1985
1986 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1987 #define ALI_PM_OPS      &ali_pm
1988 #else
1989 #define ALI_PM_OPS      NULL
1990 #endif /* CONFIG_PM_SLEEP */
1991
1992 static int snd_ali_free(struct snd_ali * codec)
1993 {
1994         if (codec->hw_initialized)
1995                 snd_ali_disable_address_interrupt(codec);
1996         if (codec->irq >= 0)
1997                 free_irq(codec->irq, codec);
1998         if (codec->port)
1999                 pci_release_regions(codec->pci);
2000         pci_disable_device(codec->pci);
2001 #ifdef CONFIG_PM_SLEEP
2002         kfree(codec->image);
2003 #endif
2004         pci_dev_put(codec->pci_m1533);
2005         pci_dev_put(codec->pci_m7101);
2006         kfree(codec);
2007         return 0;
2008 }
2009
2010 static int snd_ali_chip_init(struct snd_ali *codec)
2011 {
2012         unsigned int legacy;
2013         unsigned char temp;
2014         struct pci_dev *pci_dev;
2015
2016         snd_ali_printk("chip initializing ... \n");
2017
2018         if (snd_ali_reset_5451(codec)) {
2019                 snd_printk(KERN_ERR "ali_chip_init: reset 5451 error.\n");
2020                 return -1;
2021         }
2022
2023         if (codec->revision == ALI_5451_V02) {
2024                 pci_dev = codec->pci_m1533;
2025                 pci_read_config_byte(pci_dev, 0x59, &temp);
2026                 temp |= 0x80;
2027                 pci_write_config_byte(pci_dev, 0x59, temp);
2028
2029                 pci_dev = codec->pci_m7101;
2030                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2031                 temp |= 0x20;
2032                 pci_write_config_byte(pci_dev, 0xB8, temp);
2033         }
2034
2035         pci_read_config_dword(codec->pci, 0x44, &legacy);
2036         legacy &= 0xff00ff00;
2037         legacy |= 0x000800aa;
2038         pci_write_config_dword(codec->pci, 0x44, legacy);
2039
2040         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2041         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2042         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2043         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2044         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2045
2046         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2047         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2048                                                     AC97_EXTENDED_STATUS);
2049         if (codec->spdif_support) {
2050                 snd_ali_enable_spdif_out(codec);
2051                 codec->spdif_mask = 0x00000002;
2052         }
2053
2054         codec->num_of_codecs = 1;
2055
2056         /* secondary codec - modem */
2057         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2058                 codec->num_of_codecs++;
2059                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2060                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2061                       ALI_SCTRL_LINE_OUT_EN),
2062                      ALI_REG(codec, ALI_SCTRL));
2063         }
2064
2065         snd_ali_printk("chip initialize succeed.\n");
2066         return 0;
2067
2068 }
2069
2070 /* proc for register dump */
2071 static void snd_ali_proc_read(struct snd_info_entry *entry,
2072                               struct snd_info_buffer *buf)
2073 {
2074         struct snd_ali *codec = entry->private_data;
2075         int i;
2076         for (i = 0; i < 256 ; i+= 4)
2077                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2078 }
2079
2080 static void snd_ali_proc_init(struct snd_ali *codec)
2081 {
2082         struct snd_info_entry *entry;
2083         if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2084                 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2085 }
2086
2087 static int snd_ali_resources(struct snd_ali *codec)
2088 {
2089         int err;
2090
2091         snd_ali_printk("resources allocation ...\n");
2092         err = pci_request_regions(codec->pci, "ALI 5451");
2093         if (err < 0)
2094                 return err;
2095         codec->port = pci_resource_start(codec->pci, 0);
2096
2097         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2098                         IRQF_SHARED, KBUILD_MODNAME, codec)) {
2099                 snd_printk(KERN_ERR "Unable to request irq.\n");
2100                 return -EBUSY;
2101         }
2102         codec->irq = codec->pci->irq;
2103         snd_ali_printk("resources allocated.\n");
2104         return 0;
2105 }
2106 static int snd_ali_dev_free(struct snd_device *device)
2107 {
2108         struct snd_ali *codec = device->device_data;
2109         snd_ali_free(codec);
2110         return 0;
2111 }
2112
2113 static int snd_ali_create(struct snd_card *card,
2114                           struct pci_dev *pci,
2115                           int pcm_streams,
2116                           int spdif_support,
2117                           struct snd_ali **r_ali)
2118 {
2119         struct snd_ali *codec;
2120         int i, err;
2121         unsigned short cmdw;
2122         static struct snd_device_ops ops = {
2123                 .dev_free = snd_ali_dev_free,
2124         };
2125
2126         *r_ali = NULL;
2127
2128         snd_ali_printk("creating ...\n");
2129
2130         /* enable PCI device */
2131         err = pci_enable_device(pci);
2132         if (err < 0)
2133                 return err;
2134         /* check, if we can restrict PCI DMA transfers to 31 bits */
2135         if (pci_set_dma_mask(pci, DMA_BIT_MASK(31)) < 0 ||
2136             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(31)) < 0) {
2137                 snd_printk(KERN_ERR "architecture does not support "
2138                            "31bit PCI busmaster DMA\n");
2139                 pci_disable_device(pci);
2140                 return -ENXIO;
2141         }
2142
2143         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2144         if (!codec) {
2145                 pci_disable_device(pci);
2146                 return -ENOMEM;
2147         }
2148
2149         spin_lock_init(&codec->reg_lock);
2150         spin_lock_init(&codec->voice_alloc);
2151
2152         codec->card = card;
2153         codec->pci = pci;
2154         codec->irq = -1;
2155         codec->revision = pci->revision;
2156         codec->spdif_support = spdif_support;
2157
2158         if (pcm_streams < 1)
2159                 pcm_streams = 1;
2160         if (pcm_streams > 32)
2161                 pcm_streams = 32;
2162
2163         pci_set_master(pci);
2164         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2165         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2166                 cmdw |= PCI_COMMAND_IO;
2167                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2168         }
2169         pci_set_master(pci);
2170
2171         if (snd_ali_resources(codec)) {
2172                 snd_ali_free(codec);
2173                 return -EBUSY;
2174         }
2175
2176         synchronize_irq(pci->irq);
2177
2178         codec->synth.chmap = 0;
2179         codec->synth.chcnt = 0;
2180         codec->spdif_mask = 0;
2181         codec->synth.synthcount = 0;
2182
2183         if (codec->revision == ALI_5451_V02)
2184                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2185         else
2186                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2187         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2188
2189         codec->chregs.regs.start  = ALI_START;
2190         codec->chregs.regs.stop   = ALI_STOP;
2191         codec->chregs.regs.aint   = ALI_AINT;
2192         codec->chregs.regs.ainten = ALI_AINTEN;
2193
2194         codec->chregs.data.start  = 0x00;
2195         codec->chregs.data.stop   = 0x00;
2196         codec->chregs.data.aint   = 0x00;
2197         codec->chregs.data.ainten = 0x00;
2198
2199         /* M1533: southbridge */
2200         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2201         if (!codec->pci_m1533) {
2202                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2203                 snd_ali_free(codec);
2204                 return -ENODEV;
2205         }
2206         /* M7101: power management */
2207         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2208         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2209                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2210                 snd_ali_free(codec);
2211                 return -ENODEV;
2212         }
2213
2214         snd_ali_printk("snd_device_new is called.\n");
2215         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2216         if (err < 0) {
2217                 snd_ali_free(codec);
2218                 return err;
2219         }
2220
2221         snd_card_set_dev(card, &pci->dev);
2222
2223         /* initialise synth voices*/
2224         for (i = 0; i < ALI_CHANNELS; i++)
2225                 codec->synth.voices[i].number = i;
2226
2227         err = snd_ali_chip_init(codec);
2228         if (err < 0) {
2229                 snd_printk(KERN_ERR "ali create: chip init error.\n");
2230                 return err;
2231         }
2232
2233 #ifdef CONFIG_PM_SLEEP
2234         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2235         if (!codec->image)
2236                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2237 #endif
2238
2239         snd_ali_enable_address_interrupt(codec);
2240         codec->hw_initialized = 1;
2241
2242         *r_ali = codec;
2243         snd_ali_printk("created.\n");
2244         return 0;
2245 }
2246
2247 static int snd_ali_probe(struct pci_dev *pci,
2248                          const struct pci_device_id *pci_id)
2249 {
2250         struct snd_card *card;
2251         struct snd_ali *codec;
2252         int err;
2253
2254         snd_ali_printk("probe ...\n");
2255
2256         err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2257         if (err < 0)
2258                 return err;
2259
2260         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2261         if (err < 0)
2262                 goto error;
2263         card->private_data = codec;
2264
2265         snd_ali_printk("mixer building ...\n");
2266         err = snd_ali_mixer(codec);
2267         if (err < 0)
2268                 goto error;
2269
2270         snd_ali_printk("pcm building ...\n");
2271         err = snd_ali_build_pcms(codec);
2272         if (err < 0)
2273                 goto error;
2274
2275         snd_ali_proc_init(codec);
2276
2277         strcpy(card->driver, "ALI5451");
2278         strcpy(card->shortname, "ALI 5451");
2279
2280         sprintf(card->longname, "%s at 0x%lx, irq %i",
2281                 card->shortname, codec->port, codec->irq);
2282
2283         snd_ali_printk("register card.\n");
2284         err = snd_card_register(card);
2285         if (err < 0)
2286                 goto error;
2287
2288         pci_set_drvdata(pci, card);
2289         return 0;
2290
2291  error:
2292         snd_card_free(card);
2293         return err;
2294 }
2295
2296 static void snd_ali_remove(struct pci_dev *pci)
2297 {
2298         snd_card_free(pci_get_drvdata(pci));
2299 }
2300
2301 static struct pci_driver ali5451_driver = {
2302         .name = KBUILD_MODNAME,
2303         .id_table = snd_ali_ids,
2304         .probe = snd_ali_probe,
2305         .remove = snd_ali_remove,
2306         .driver = {
2307                 .pm = ALI_PM_OPS,
2308         },
2309 };
2310
2311 module_pci_driver(ali5451_driver);