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/moduleparam.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 struct pci_device_id 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 #ifdef CODEC_RESET
 482
 483 static int snd_ali_reset_codec(struct snd_ali *codec)
 484 {
 485         struct pci_dev *pci_dev;
 486         unsigned char bVal;
 487         unsigned int   dwVal;
 488         unsigned short wCount, wReg;
 489
 490         pci_dev = codec->pci_m1533;
 491
 492         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 493         pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 494         udelay(5000);
 495         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 496         pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 497         udelay(5000);
 498
 499         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 500         bVal |= 0x02;
 501         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 502         udelay(5000);
 503         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 504         bVal &= 0xfd;
 505         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 506         udelay(15000);
 507
 508         wCount = 200;
 509         while (wCount--) {
 510                 wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
 511                 if ((wReg & 0x000f) == 0x000f)
 512                         return 0;
 513                 udelay(5000);
 514         }
 515         return -1;
 516 }
 517
 518 #endif
 519
 520 /*
 521  *  ALI 5451 Controller
 522  */
 523
 524 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 525                                            unsigned int channel)
 526 {
 527         unsigned long dwVal;
 528
 529         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 530         dwVal |= 1 << (channel & 0x0000001f);
 531         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 532 }
 533
 534 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 535                                             unsigned int channel)
 536 {
 537         unsigned long dwVal;
 538
 539         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 540         dwVal &= ~(1 << (channel & 0x0000001f));
 541         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 542 }
 543
 544 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 545 {
 546         unsigned int gc;
 547
 548         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 549         gc |= ENDLP_IE;
 550         gc |= MIDLP_IE;
 551         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 552 }
 553
 554 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 555 {
 556         unsigned int gc;
 557
 558         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 559         gc &= ~ENDLP_IE;
 560         gc &= ~MIDLP_IE;
 561         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 562 }
 563
 564 #if 0 /* not used */
 565 static void snd_ali_enable_voice_irq(struct snd_ali *codec,
 566                                      unsigned int channel)
 567 {
 568         unsigned int mask;
 569         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 570
 571         snd_ali_printk("enable_voice_irq channel=%d\n",channel);
 572
 573         mask = 1 << (channel & 0x1f);
 574         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 575         pchregs->data.ainten |= mask;
 576         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 577 }
 578 #endif
 579
 580 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 581                                       unsigned int channel)
 582 {
 583         unsigned int mask;
 584         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 585
 586         snd_ali_printk("disable_voice_irq channel=%d\n",channel);
 587
 588         mask = 1 << (channel & 0x1f);
 589         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 590         pchregs->data.ainten &= ~mask;
 591         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 592 }
 593
 594 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 595 {
 596         unsigned int idx =  channel & 0x1f;
 597
 598         if (codec->synth.chcnt >= ALI_CHANNELS){
 599                 snd_printk(KERN_ERR
 600                            "ali_alloc_pcm_channel: no free channels.\n");
 601                 return -1;
 602         }
 603
 604         if (!(codec->synth.chmap & (1 << idx))) {
 605                 codec->synth.chmap |= 1 << idx;
 606                 codec->synth.chcnt++;
 607                 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
 608                 return idx;
 609         }
 610         return -1;
 611 }
 612
 613 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 614 {
 615         int idx;
 616         int result = -1;
 617
 618         snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
 619
 620         /* recording */
 621         if (rec) {
 622                 if (codec->spdif_support &&
 623                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 624                      ALI_SPDIF_IN_SUPPORT))
 625                         idx = ALI_SPDIF_IN_CHANNEL;
 626                 else
 627                         idx = ALI_PCM_IN_CHANNEL;
 628
 629                 result = snd_ali_alloc_pcm_channel(codec, idx);
 630                 if (result >= 0)
 631                         return result;
 632                 else {
 633                         snd_printk(KERN_ERR "ali_find_free_channel: "
 634                                    "record channel is busy now.\n");
 635                         return -1;
 636                 }
 637         }
 638
 639         /* playback... */
 640         if (codec->spdif_support &&
 641             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 642              ALI_SPDIF_OUT_CH_ENABLE)) {
 643                 idx = ALI_SPDIF_OUT_CHANNEL;
 644                 result = snd_ali_alloc_pcm_channel(codec, idx);
 645                 if (result >= 0)
 646                         return result;
 647                 else
 648                         snd_printk(KERN_ERR "ali_find_free_channel: "
 649                                    "S/PDIF out channel is in busy now.\n");
 650         }
 651
 652         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 653                 result = snd_ali_alloc_pcm_channel(codec, idx);
 654                 if (result >= 0)
 655                         return result;
 656         }
 657         snd_printk(KERN_ERR "ali_find_free_channel: no free channels.\n");
 658         return -1;
 659 }
 660
 661 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 662 {
 663         unsigned int idx = channel & 0x0000001f;
 664
 665         snd_ali_printk("free_channel_pcm channel=%d\n",channel);
 666
 667         if (channel < 0 || channel >= ALI_CHANNELS)
 668                 return;
 669
 670         if (!(codec->synth.chmap & (1 << idx))) {
 671                 snd_printk(KERN_ERR "ali_free_channel_pcm: "
 672                            "channel %d is not in use.\n", channel);
 673                 return;
 674         } else {
 675                 codec->synth.chmap &= ~(1 << idx);
 676                 codec->synth.chcnt--;
 677         }
 678 }
 679
 680 #if 0 /* not used */
 681 static void snd_ali_start_voice(struct snd_ali *codec, unsigned int channel)
 682 {
 683         unsigned int mask = 1 << (channel & 0x1f);
 684
 685         snd_ali_printk("start_voice: channel=%d\n",channel);
 686         outl(mask, ALI_REG(codec,codec->chregs.regs.start));
 687 }
 688 #endif
 689
 690 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 691 {
 692         unsigned int mask = 1 << (channel & 0x1f);
 693
 694         snd_ali_printk("stop_voice: channel=%d\n",channel);
 695         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 696 }
 697
 698 /*
 699  *    S/PDIF Part
 700  */
 701
 702 static void snd_ali_delay(struct snd_ali *codec,int interval)
 703 {
 704         unsigned long  begintimer,currenttimer;
 705
 706         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 707         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 708
 709         while (currenttimer < begintimer + interval) {
 710                 if (snd_ali_stimer_ready(codec) < 0)
 711                         break;
 712                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 713                 cpu_relax();
 714         }
 715 }
 716
 717 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 718 {
 719         u16 wval;
 720         u16 count = 0;
 721         u8  bval, R1 = 0, R2;
 722
 723         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 724         bval |= 0x1F;
 725         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 726
 727         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 728                 count ++;
 729                 snd_ali_delay(codec, 6);
 730                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 731                 R1 = bval & 0x1F;
 732         }
 733
 734         if (count > 50000) {
 735                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 736                 return;
 737         }
 738
 739         for (count = 0; count <= 50000; count++) {
 740                 snd_ali_delay(codec, 6);
 741                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 742                 R2 = bval & 0x1F;
 743                 if (R2 != R1)
 744                         R1 = R2;
 745                 else
 746                         break;
 747         }
 748
 749         if (count > 50000) {
 750                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 751                 return;
 752         }
 753
 754         if (R2 >= 0x0b && R2 <= 0x0e) {
 755                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 756                 wval &= 0xe0f0;
 757                 wval |= (0x09 << 8) | 0x05;
 758                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 759
 760                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 761                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 762         } else if (R2 == 0x12) {
 763                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 764                 wval &= 0xe0f0;
 765                 wval |= (0x0e << 8) | 0x08;
 766                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 767
 768                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 769                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 770         }
 771 }
 772
 773 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 774 {
 775         u32     dwRate;
 776         u8      bval;
 777
 778         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 779         bval &= 0x7f;
 780         bval |= 0x40;
 781         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 782
 783         snd_ali_detect_spdif_rate(codec);
 784
 785         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 786         bval &= 0x0f;
 787
 788         switch (bval) {
 789         case 0: dwRate = 44100; break;
 790         case 1: dwRate = 48000; break;
 791         case 2: dwRate = 32000; break;
 792         default: dwRate = 0; break;
 793         }
 794
 795         return dwRate;
 796 }
 797
 798 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 799 {
 800         unsigned int dwVal;
 801
 802         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 803         dwVal |= ALI_SPDIF_IN_SUPPORT;
 804         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 805
 806         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 807         dwVal |= 0x02;
 808         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 809
 810         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 811 }
 812
 813 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 814 {
 815         unsigned int dwVal;
 816
 817         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 818         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 819         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 820
 821         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 822 }
 823
 824
 825 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 826 {
 827         unsigned char  bVal;
 828         unsigned int  dwRate;
 829
 830         switch (rate) {
 831         case 32000: dwRate = 0x300; break;
 832         case 48000: dwRate = 0x200; break;
 833         default: dwRate = 0; break;
 834         }
 835
 836         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 837         bVal &= (unsigned char)(~(1<<6));
 838
 839         bVal |= 0x80;           /* select right */
 840         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 841         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 842
 843         bVal &= ~0x80;  /* select left */
 844         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 845         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 846 }
 847
 848 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 849 {
 850         unsigned short wVal;
 851         unsigned char bVal;
 852         struct pci_dev *pci_dev;
 853
 854         pci_dev = codec->pci_m1533;
 855         if (pci_dev == NULL)
 856                 return;
 857         pci_read_config_byte(pci_dev, 0x61, &bVal);
 858         bVal |= 0x40;
 859         pci_write_config_byte(pci_dev, 0x61, bVal);
 860         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 861         bVal |= 0x01;
 862         pci_write_config_byte(pci_dev, 0x7d, bVal);
 863
 864         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 865         bVal &= (~0x20);
 866         bVal |= 0x10;
 867         pci_write_config_byte(pci_dev, 0x7e, bVal);
 868
 869         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 870         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 871
 872         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 873         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 874
 875         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 876         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 877         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 878         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 879 }
 880
 881 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 882 {
 883         unsigned short wVal;
 884
 885         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 886         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 887         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 888 /*
 889         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 890         if (flag & ALI_SPDIF_OUT_NON_PCM)
 891                 wVal |= 0x0002;
 892         else
 893                 wVal &= (~0x0002);
 894         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 895 */
 896         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 897 }
 898
 899 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 900 {
 901         unsigned short wVal;
 902
 903         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 904         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 905         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 906
 907         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 908 }
 909
 910 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 911 {
 912         unsigned char  bVal;
 913
 914         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 915         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 916
 917         snd_ali_disable_spdif_chnout(codec);
 918 }
 919
 920 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 921 {
 922         struct snd_ali_voice *pvoice;
 923         struct snd_pcm_runtime *runtime;
 924         struct snd_ali_channel_control *pchregs;
 925         unsigned int old, mask;
 926 #ifdef ALI_DEBUG
 927         unsigned int temp, cspf;
 928 #endif
 929
 930         pchregs = &(codec->chregs);
 931
 932         /* check if interrupt occurred for channel */
 933         old  = pchregs->data.aint;
 934         mask = 1U << (channel & 0x1f);
 935
 936         if (!(old & mask))
 937                 return;
 938
 939         pvoice = &codec->synth.voices[channel];
 940         runtime = pvoice->substream->runtime;
 941
 942         udelay(100);
 943         spin_lock(&codec->reg_lock);
 944
 945         if (pvoice->pcm && pvoice->substream) {
 946                 /* pcm interrupt */
 947 #ifdef ALI_DEBUG
 948                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
 949                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
 950                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
 951 #endif
 952                 if (pvoice->running) {
 953                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",
 954                                        (u16)temp, cspf);
 955                         spin_unlock(&codec->reg_lock);
 956                         snd_pcm_period_elapsed(pvoice->substream);
 957                         spin_lock(&codec->reg_lock);
 958                 } else {
 959                         snd_ali_stop_voice(codec, channel);
 960                         snd_ali_disable_voice_irq(codec, channel);
 961                 }
 962         } else if (codec->synth.voices[channel].synth) {
 963                 /* synth interrupt */
 964         } else if (codec->synth.voices[channel].midi) {
 965                 /* midi interrupt */
 966         } else {
 967                 /* unknown interrupt */
 968                 snd_ali_stop_voice(codec, channel);
 969                 snd_ali_disable_voice_irq(codec, channel);
 970         }
 971         spin_unlock(&codec->reg_lock);
 972         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 973         pchregs->data.aint = old & (~mask);
 974 }
 975
 976 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 977 {
 978         struct snd_ali  *codec = dev_id;
 979         int channel;
 980         unsigned int audio_int;
 981         struct snd_ali_channel_control *pchregs;
 982
 983         if (codec == NULL || !codec->hw_initialized)
 984                 return IRQ_NONE;
 985
 986         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 987         if (!audio_int)
 988                 return IRQ_NONE;
 989
 990         pchregs = &(codec->chregs);
 991         if (audio_int & ADDRESS_IRQ) {
 992                 /* get interrupt status for all channels */
 993                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 994                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 995                         snd_ali_update_ptr(codec, channel);
 996         }
 997         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 998                 ALI_REG(codec, ALI_MISCINT));
 999
1000         return IRQ_HANDLED;
1001 }
1002
1003
1004 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
1005                                                  int type, int rec, int channel)
1006 {
1007         struct snd_ali_voice *pvoice;
1008         int idx;
1009
1010         snd_ali_printk("alloc_voice: type=%d rec=%d\n", type, rec);
1011
1012         spin_lock_irq(&codec->voice_alloc);
1013         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
1014                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
1015                         snd_ali_find_free_channel(codec,rec);
1016                 if (idx < 0) {
1017                         snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
1018                         spin_unlock_irq(&codec->voice_alloc);
1019                         return NULL;
1020                 }
1021                 pvoice = &(codec->synth.voices[idx]);
1022                 pvoice->codec = codec;
1023                 pvoice->use = 1;
1024                 pvoice->pcm = 1;
1025                 pvoice->mode = rec;
1026                 spin_unlock_irq(&codec->voice_alloc);
1027                 return pvoice;
1028         }
1029         spin_unlock_irq(&codec->voice_alloc);
1030         return NULL;
1031 }
1032
1033
1034 static void snd_ali_free_voice(struct snd_ali * codec,
1035                                struct snd_ali_voice *pvoice)
1036 {
1037         void (*private_free)(void *);
1038         void *private_data;
1039
1040         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
1041         if (pvoice == NULL || !pvoice->use)
1042                 return;
1043         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
1044         spin_lock_irq(&codec->voice_alloc);
1045         private_free = pvoice->private_free;
1046         private_data = pvoice->private_data;
1047         pvoice->private_free = NULL;
1048         pvoice->private_data = NULL;
1049         if (pvoice->pcm)
1050                 snd_ali_free_channel_pcm(codec, pvoice->number);
1051         pvoice->use = pvoice->pcm = pvoice->synth = 0;
1052         pvoice->substream = NULL;
1053         spin_unlock_irq(&codec->voice_alloc);
1054         if (private_free)
1055                 private_free(private_data);
1056 }
1057
1058
1059 static void snd_ali_clear_voices(struct snd_ali *codec,
1060                                  unsigned int v_min,
1061                                  unsigned int v_max)
1062 {
1063         unsigned int i;
1064
1065         for (i = v_min; i <= v_max; i++) {
1066                 snd_ali_stop_voice(codec, i);
1067                 snd_ali_disable_voice_irq(codec, i);
1068         }
1069 }
1070
1071 static void snd_ali_write_voice_regs(struct snd_ali *codec,
1072                          unsigned int Channel,
1073                          unsigned int LBA,
1074                          unsigned int CSO,
1075                          unsigned int ESO,
1076                          unsigned int DELTA,
1077                          unsigned int ALPHA_FMS,
1078                          unsigned int GVSEL,
1079                          unsigned int PAN,
1080                          unsigned int VOL,
1081                          unsigned int CTRL,
1082                          unsigned int EC)
1083 {
1084         unsigned int ctlcmds[4];
1085
1086         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1087
1088         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1089         ctlcmds[1] =  LBA;
1090         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1091         ctlcmds[3] =  (GVSEL << 31) |
1092                       ((PAN & 0x0000007f) << 24) |
1093                       ((VOL & 0x000000ff) << 16) |
1094                       ((CTRL & 0x0000000f) << 12) |
1095                       (EC & 0x00000fff);
1096
1097         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1098
1099         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1100         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1101         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1102         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1103
1104         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1105         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1106 }
1107
1108 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1109 {
1110         unsigned int delta;
1111
1112         if (rate < 4000)
1113                 rate = 4000;
1114         if (rate > 48000)
1115                 rate = 48000;
1116
1117         if (rec) {
1118                 if (rate == 44100)
1119                         delta = 0x116a;
1120                 else if (rate == 8000)
1121                         delta = 0x6000;
1122                 else if (rate == 48000)
1123                         delta = 0x1000;
1124                 else
1125                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1126         } else {
1127                 if (rate == 44100)
1128                         delta = 0xeb3;
1129                 else if (rate == 8000)
1130                         delta = 0x2ab;
1131                 else if (rate == 48000)
1132                         delta = 0x1000;
1133                 else
1134                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1135         }
1136
1137         return delta;
1138 }
1139
1140 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1141 {
1142         unsigned int CTRL;
1143         struct snd_pcm_runtime *runtime = substream->runtime;
1144
1145         /* set ctrl mode
1146            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1147          */
1148         CTRL = 0x00000001;
1149         if (snd_pcm_format_width(runtime->format) == 16)
1150                 CTRL |= 0x00000008;     /* 16-bit data */
1151         if (!snd_pcm_format_unsigned(runtime->format))
1152                 CTRL |= 0x00000002;     /* signed data */
1153         if (runtime->channels > 1)
1154                 CTRL |= 0x00000004;     /* stereo data */
1155         return CTRL;
1156 }
1157
1158 /*
1159  *  PCM part
1160  */
1161
1162 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1163                                int cmd)
1164
1165 {
1166         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1167         struct snd_pcm_substream *s;
1168         unsigned int what, whati, capture_flag;
1169         struct snd_ali_voice *pvoice, *evoice;
1170         unsigned int val;
1171         int do_start;
1172
1173         switch (cmd) {
1174         case SNDRV_PCM_TRIGGER_START:
1175         case SNDRV_PCM_TRIGGER_RESUME:
1176                 do_start = 1;
1177                 break;
1178         case SNDRV_PCM_TRIGGER_STOP:
1179         case SNDRV_PCM_TRIGGER_SUSPEND:
1180                 do_start = 0;
1181                 break;
1182         default:
1183                 return -EINVAL;
1184         }
1185
1186         what = whati = capture_flag = 0;
1187         snd_pcm_group_for_each_entry(s, substream) {
1188                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1189                         pvoice = s->runtime->private_data;
1190                         evoice = pvoice->extra;
1191                         what |= 1 << (pvoice->number & 0x1f);
1192                         if (evoice == NULL)
1193                                 whati |= 1 << (pvoice->number & 0x1f);
1194                         else {
1195                                 whati |= 1 << (evoice->number & 0x1f);
1196                                 what |= 1 << (evoice->number & 0x1f);
1197                         }
1198                         if (do_start) {
1199                                 pvoice->running = 1;
1200                                 if (evoice != NULL)
1201                                         evoice->running = 1;
1202                         } else {
1203                                 pvoice->running = 0;
1204                                 if (evoice != NULL)
1205                                         evoice->running = 0;
1206                         }
1207                         snd_pcm_trigger_done(s, substream);
1208                         if (pvoice->mode)
1209                                 capture_flag = 1;
1210                 }
1211         }
1212         spin_lock(&codec->reg_lock);
1213         if (!do_start)
1214                 outl(what, ALI_REG(codec, ALI_STOP));
1215         val = inl(ALI_REG(codec, ALI_AINTEN));
1216         if (do_start)
1217                 val |= whati;
1218         else
1219                 val &= ~whati;
1220         outl(val, ALI_REG(codec, ALI_AINTEN));
1221         if (do_start)
1222                 outl(what, ALI_REG(codec, ALI_START));
1223         snd_ali_printk("trigger: what=%xh whati=%xh\n", what, whati);
1224         spin_unlock(&codec->reg_lock);
1225
1226         return 0;
1227 }
1228
1229 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1230                                       struct snd_pcm_hw_params *hw_params)
1231 {
1232         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1233         struct snd_pcm_runtime *runtime = substream->runtime;
1234         struct snd_ali_voice *pvoice = runtime->private_data;
1235         struct snd_ali_voice *evoice = pvoice->extra;
1236         int err;
1237
1238         err = snd_pcm_lib_malloc_pages(substream,
1239                                        params_buffer_bytes(hw_params));
1240         if (err < 0)
1241                 return err;
1242
1243         /* voice management */
1244
1245         if (params_buffer_size(hw_params) / 2 !=
1246             params_period_size(hw_params)) {
1247                 if (!evoice) {
1248                         evoice = snd_ali_alloc_voice(codec,
1249                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1250                                                      0, -1);
1251                         if (!evoice)
1252                                 return -ENOMEM;
1253                         pvoice->extra = evoice;
1254                         evoice->substream = substream;
1255                 }
1256         } else {
1257                 if (evoice) {
1258                         snd_ali_free_voice(codec, evoice);
1259                         pvoice->extra = evoice = NULL;
1260                 }
1261         }
1262
1263         return 0;
1264 }
1265
1266 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1267 {
1268         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1269         struct snd_pcm_runtime *runtime = substream->runtime;
1270         struct snd_ali_voice *pvoice = runtime->private_data;
1271         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1272
1273         snd_pcm_lib_free_pages(substream);
1274         if (evoice) {
1275                 snd_ali_free_voice(codec, evoice);
1276                 pvoice->extra = NULL;
1277         }
1278         return 0;
1279 }
1280
1281 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1282                              struct snd_pcm_hw_params *hw_params)
1283 {
1284         return snd_pcm_lib_malloc_pages(substream,
1285                                         params_buffer_bytes(hw_params));
1286 }
1287
1288 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1289 {
1290         return snd_pcm_lib_free_pages(substream);
1291 }
1292
1293 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1294 {
1295         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1296         struct snd_pcm_runtime *runtime = substream->runtime;
1297         struct snd_ali_voice *pvoice = runtime->private_data;
1298         struct snd_ali_voice *evoice = pvoice->extra;
1299
1300         unsigned int LBA;
1301         unsigned int Delta;
1302         unsigned int ESO;
1303         unsigned int CTRL;
1304         unsigned int GVSEL;
1305         unsigned int PAN;
1306         unsigned int VOL;
1307         unsigned int EC;
1308
1309         snd_ali_printk("playback_prepare ...\n");
1310
1311         spin_lock_irq(&codec->reg_lock);
1312
1313         /* set Delta (rate) value */
1314         Delta = snd_ali_convert_rate(runtime->rate, 0);
1315
1316         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1317             pvoice->number == ALI_PCM_IN_CHANNEL)
1318                 snd_ali_disable_special_channel(codec, pvoice->number);
1319         else if (codec->spdif_support &&
1320                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1321                   ALI_SPDIF_OUT_CH_ENABLE)
1322                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1323                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1324                 Delta = 0x1000;
1325         }
1326
1327         /* set Loop Back Address */
1328         LBA = runtime->dma_addr;
1329
1330         /* set interrupt count size */
1331         pvoice->count = runtime->period_size;
1332
1333         /* set target ESO for channel */
1334         pvoice->eso = runtime->buffer_size;
1335
1336         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",
1337                        pvoice->eso, pvoice->count);
1338
1339         /* set ESO to capture first MIDLP interrupt */
1340         ESO = pvoice->eso -1;
1341         /* set ctrl mode */
1342         CTRL = snd_ali_control_mode(substream);
1343
1344         GVSEL = 1;
1345         PAN = 0;
1346         VOL = 0;
1347         EC = 0;
1348         snd_ali_printk("playback_prepare:\n");
1349         snd_ali_printk("ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1350                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1351         snd_ali_write_voice_regs(codec,
1352                                  pvoice->number,
1353                                  LBA,
1354                                  0,     /* cso */
1355                                  ESO,
1356                                  Delta,
1357                                  0,     /* alpha */
1358                                  GVSEL,
1359                                  PAN,
1360                                  VOL,
1361                                  CTRL,
1362                                  EC);
1363         if (evoice) {
1364                 evoice->count = pvoice->count;
1365                 evoice->eso = pvoice->count << 1;
1366                 ESO = evoice->eso - 1;
1367                 snd_ali_write_voice_regs(codec,
1368                                          evoice->number,
1369                                          LBA,
1370                                          0,     /* cso */
1371                                          ESO,
1372                                          Delta,
1373                                          0,     /* alpha */
1374                                          GVSEL,
1375                                          0x7f,
1376                                          0x3ff,
1377                                          CTRL,
1378                                          EC);
1379         }
1380         spin_unlock_irq(&codec->reg_lock);
1381         return 0;
1382 }
1383
1384
1385 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1386 {
1387         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1388         struct snd_pcm_runtime *runtime = substream->runtime;
1389         struct snd_ali_voice *pvoice = runtime->private_data;
1390         unsigned int LBA;
1391         unsigned int Delta;
1392         unsigned int ESO;
1393         unsigned int CTRL;
1394         unsigned int GVSEL;
1395         unsigned int PAN;
1396         unsigned int VOL;
1397         unsigned int EC;
1398         u8       bValue;
1399
1400         spin_lock_irq(&codec->reg_lock);
1401
1402         snd_ali_printk("ali_prepare...\n");
1403
1404         snd_ali_enable_special_channel(codec,pvoice->number);
1405
1406         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1407                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1408                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1409
1410         /* Prepare capture intr channel */
1411         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1412
1413                 unsigned int rate;
1414
1415                 spin_unlock_irq(&codec->reg_lock);
1416                 if (codec->revision != ALI_5451_V02)
1417                         return -1;
1418
1419                 rate = snd_ali_get_spdif_in_rate(codec);
1420                 if (rate == 0) {
1421                         snd_printk(KERN_WARNING "ali_capture_preapre: "
1422                                    "spdif rate detect err!\n");
1423                         rate = 48000;
1424                 }
1425                 spin_lock_irq(&codec->reg_lock);
1426                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1427                 if (bValue & 0x10) {
1428                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1429                         printk(KERN_WARNING "clear SPDIF parity error flag.\n");
1430                 }
1431
1432                 if (rate != 48000)
1433                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1434         }
1435
1436         /* set target ESO for channel  */
1437         pvoice->eso = runtime->buffer_size;
1438
1439         /* set interrupt count size  */
1440         pvoice->count = runtime->period_size;
1441
1442         /* set Loop Back Address  */
1443         LBA = runtime->dma_addr;
1444
1445         /* set ESO to capture first MIDLP interrupt  */
1446         ESO = pvoice->eso - 1;
1447         CTRL = snd_ali_control_mode(substream);
1448         GVSEL = 0;
1449         PAN = 0x00;
1450         VOL = 0x00;
1451         EC = 0;
1452
1453         snd_ali_write_voice_regs(    codec,
1454                                      pvoice->number,
1455                                      LBA,
1456                                      0, /* cso */
1457                                      ESO,
1458                                      Delta,
1459                                      0, /* alpha */
1460                                      GVSEL,
1461                                      PAN,
1462                                      VOL,
1463                                      CTRL,
1464                                      EC);
1465
1466         spin_unlock_irq(&codec->reg_lock);
1467
1468         return 0;
1469 }
1470
1471
1472 static snd_pcm_uframes_t
1473 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1474 {
1475         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1476         struct snd_pcm_runtime *runtime = substream->runtime;
1477         struct snd_ali_voice *pvoice = runtime->private_data;
1478         unsigned int cso;
1479
1480         spin_lock(&codec->reg_lock);
1481         if (!pvoice->running) {
1482                 spin_unlock(&codec->reg_lock);
1483                 return 0;
1484         }
1485         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1486         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1487         spin_unlock(&codec->reg_lock);
1488         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1489
1490         return cso;
1491 }
1492
1493
1494 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1495 {
1496         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1497         struct snd_pcm_runtime *runtime = substream->runtime;
1498         struct snd_ali_voice *pvoice = runtime->private_data;
1499         unsigned int cso;
1500
1501         spin_lock(&codec->reg_lock);
1502         if (!pvoice->running) {
1503                 spin_unlock_irq(&codec->reg_lock);
1504                 return 0;
1505         }
1506         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1507         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1508         spin_unlock(&codec->reg_lock);
1509
1510         return cso;
1511 }
1512
1513 static struct snd_pcm_hardware snd_ali_playback =
1514 {
1515         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1516                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1517                          SNDRV_PCM_INFO_MMAP_VALID |
1518                          SNDRV_PCM_INFO_RESUME |
1519                          SNDRV_PCM_INFO_SYNC_START),
1520         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1521                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1522         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1523         .rate_min =             4000,
1524         .rate_max =             48000,
1525         .channels_min =         1,
1526         .channels_max =         2,
1527         .buffer_bytes_max =     (256*1024),
1528         .period_bytes_min =     64,
1529         .period_bytes_max =     (256*1024),
1530         .periods_min =          1,
1531         .periods_max =          1024,
1532         .fifo_size =            0,
1533 };
1534
1535 /*
1536  *  Capture support device description
1537  */
1538
1539 static struct snd_pcm_hardware snd_ali_capture =
1540 {
1541         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1542                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1543                          SNDRV_PCM_INFO_MMAP_VALID |
1544                          SNDRV_PCM_INFO_RESUME |
1545                          SNDRV_PCM_INFO_SYNC_START),
1546         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1547                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1548         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1549         .rate_min =             4000,
1550         .rate_max =             48000,
1551         .channels_min =         1,
1552         .channels_max =         2,
1553         .buffer_bytes_max =     (128*1024),
1554         .period_bytes_min =     64,
1555         .period_bytes_max =     (128*1024),
1556         .periods_min =          1,
1557         .periods_max =          1024,
1558         .fifo_size =            0,
1559 };
1560
1561 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1562 {
1563         struct snd_ali_voice *pvoice = runtime->private_data;
1564         struct snd_ali *codec;
1565
1566         if (pvoice) {
1567                 codec = pvoice->codec;
1568                 snd_ali_free_voice(pvoice->codec, pvoice);
1569         }
1570 }
1571
1572 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1573                         int channel, struct snd_pcm_hardware *phw)
1574 {
1575         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1576         struct snd_pcm_runtime *runtime = substream->runtime;
1577         struct snd_ali_voice *pvoice;
1578
1579         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1580                                      channel);
1581         if (!pvoice)
1582                 return -EAGAIN;
1583
1584         pvoice->substream = substream;
1585         runtime->private_data = pvoice;
1586         runtime->private_free = snd_ali_pcm_free_substream;
1587
1588         runtime->hw = *phw;
1589         snd_pcm_set_sync(substream);
1590         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1591                                      0, 64*1024);
1592         return 0;
1593 }
1594
1595 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1596 {
1597         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1598 }
1599
1600 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1601 {
1602         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1603 }
1604
1605 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1606 {
1607         return 0;
1608 }
1609
1610 static int snd_ali_close(struct snd_pcm_substream *substream)
1611 {
1612         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1613         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1614
1615         snd_ali_disable_special_channel(codec,pvoice->number);
1616
1617         return 0;
1618 }
1619
1620 static struct snd_pcm_ops snd_ali_playback_ops = {
1621         .open =         snd_ali_playback_open,
1622         .close =        snd_ali_playback_close,
1623         .ioctl =        snd_pcm_lib_ioctl,
1624         .hw_params =    snd_ali_playback_hw_params,
1625         .hw_free =      snd_ali_playback_hw_free,
1626         .prepare =      snd_ali_playback_prepare,
1627         .trigger =      snd_ali_trigger,
1628         .pointer =      snd_ali_playback_pointer,
1629 };
1630
1631 static struct snd_pcm_ops snd_ali_capture_ops = {
1632         .open =         snd_ali_capture_open,
1633         .close =        snd_ali_close,
1634         .ioctl =        snd_pcm_lib_ioctl,
1635         .hw_params =    snd_ali_hw_params,
1636         .hw_free =      snd_ali_hw_free,
1637         .prepare =      snd_ali_prepare,
1638         .trigger =      snd_ali_trigger,
1639         .pointer =      snd_ali_pointer,
1640 };
1641
1642 /*
1643  * Modem PCM
1644  */
1645
1646 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1647                                  struct snd_pcm_hw_params *hw_params)
1648 {
1649         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1650         unsigned int modem_num = chip->num_of_codecs - 1;
1651         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1652                        params_rate(hw_params));
1653         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1654         return snd_ali_hw_params(substream, hw_params);
1655 }
1656
1657 static struct snd_pcm_hardware snd_ali_modem =
1658 {
1659         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1660                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1661                          SNDRV_PCM_INFO_MMAP_VALID |
1662                          SNDRV_PCM_INFO_RESUME |
1663                          SNDRV_PCM_INFO_SYNC_START),
1664         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1665         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1666                          SNDRV_PCM_RATE_16000),
1667         .rate_min =             8000,
1668         .rate_max =             16000,
1669         .channels_min =         1,
1670         .channels_max =         1,
1671         .buffer_bytes_max =     (256*1024),
1672         .period_bytes_min =     64,
1673         .period_bytes_max =     (256*1024),
1674         .periods_min =          1,
1675         .periods_max =          1024,
1676         .fifo_size =            0,
1677 };
1678
1679 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1680                               int channel)
1681 {
1682         static unsigned int rates[] = {8000, 9600, 12000, 16000};
1683         static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1684                 .count = ARRAY_SIZE(rates),
1685                 .list = rates,
1686                 .mask = 0,
1687         };
1688         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1689
1690         if (err)
1691                 return err;
1692         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1693                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1694 }
1695
1696 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1697 {
1698         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1699 }
1700
1701 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1702 {
1703         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1704 }
1705
1706 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1707         .open =         snd_ali_modem_playback_open,
1708         .close =        snd_ali_close,
1709         .ioctl =        snd_pcm_lib_ioctl,
1710         .hw_params =    snd_ali_modem_hw_params,
1711         .hw_free =      snd_ali_hw_free,
1712         .prepare =      snd_ali_prepare,
1713         .trigger =      snd_ali_trigger,
1714         .pointer =      snd_ali_pointer,
1715 };
1716
1717 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1718         .open =         snd_ali_modem_capture_open,
1719         .close =        snd_ali_close,
1720         .ioctl =        snd_pcm_lib_ioctl,
1721         .hw_params =    snd_ali_modem_hw_params,
1722         .hw_free =      snd_ali_hw_free,
1723         .prepare =      snd_ali_prepare,
1724         .trigger =      snd_ali_trigger,
1725         .pointer =      snd_ali_pointer,
1726 };
1727
1728
1729 struct ali_pcm_description {
1730         char *name;
1731         unsigned int playback_num;
1732         unsigned int capture_num;
1733         struct snd_pcm_ops *playback_ops;
1734         struct snd_pcm_ops *capture_ops;
1735         unsigned short class;
1736 };
1737
1738
1739 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1740 {
1741         struct snd_ali *codec = pcm->private_data;
1742         codec->pcm[pcm->device] = NULL;
1743 }
1744
1745
1746 static int __devinit snd_ali_pcm(struct snd_ali * codec, int device,
1747                                  struct ali_pcm_description *desc)
1748 {
1749         struct snd_pcm *pcm;
1750         int err;
1751
1752         err = snd_pcm_new(codec->card, desc->name, device,
1753                           desc->playback_num, desc->capture_num, &pcm);
1754         if (err < 0) {
1755                 snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
1756                 return err;
1757         }
1758         pcm->private_data = codec;
1759         pcm->private_free = snd_ali_pcm_free;
1760         if (desc->playback_ops)
1761                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1762                                 desc->playback_ops);
1763         if (desc->capture_ops)
1764                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1765                                 desc->capture_ops);
1766
1767         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1768                                               snd_dma_pci_data(codec->pci),
1769                                               64*1024, 128*1024);
1770
1771         pcm->info_flags = 0;
1772         pcm->dev_class = desc->class;
1773         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1774         strcpy(pcm->name, desc->name);
1775         codec->pcm[0] = pcm;
1776         return 0;
1777 }
1778
1779 static struct ali_pcm_description ali_pcms[] = {
1780         { .name = "ALI 5451",
1781           .playback_num = ALI_CHANNELS,
1782           .capture_num = 1,
1783           .playback_ops = &snd_ali_playback_ops,
1784           .capture_ops = &snd_ali_capture_ops
1785         },
1786         { .name = "ALI 5451 modem",
1787           .playback_num = 1,
1788           .capture_num = 1,
1789           .playback_ops = &snd_ali_modem_playback_ops,
1790           .capture_ops = &snd_ali_modem_capture_ops,
1791           .class = SNDRV_PCM_CLASS_MODEM
1792         }
1793 };
1794
1795 static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
1796 {
1797         int i, err;
1798         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1799                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1800                 if (err < 0)
1801                         return err;
1802         }
1803         return 0;
1804 }
1805
1806
1807 #define ALI5451_SPDIF(xname, xindex, value) \
1808 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1809 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1810 .put = snd_ali5451_spdif_put, .private_value = value}
1811
1812 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1813
1814 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1815                                  struct snd_ctl_elem_value *ucontrol)
1816 {
1817         struct snd_ali *codec = kcontrol->private_data;
1818         unsigned int spdif_enable;
1819
1820         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1821
1822         spin_lock_irq(&codec->reg_lock);
1823         switch (kcontrol->private_value) {
1824         case 0:
1825                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1826                 break;
1827         case 1:
1828                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1829                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1830                 break;
1831         case 2:
1832                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1833                 break;
1834         default:
1835                 break;
1836         }
1837         ucontrol->value.integer.value[0] = spdif_enable;
1838         spin_unlock_irq(&codec->reg_lock);
1839         return 0;
1840 }
1841
1842 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1843                                  struct snd_ctl_elem_value *ucontrol)
1844 {
1845         struct snd_ali *codec = kcontrol->private_data;
1846         unsigned int change = 0, spdif_enable = 0;
1847
1848         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1849
1850         spin_lock_irq(&codec->reg_lock);
1851         switch (kcontrol->private_value) {
1852         case 0:
1853                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1854                 change = change ^ spdif_enable;
1855                 if (change) {
1856                         if (spdif_enable) {
1857                                 codec->spdif_mask |= 0x02;
1858                                 snd_ali_enable_spdif_out(codec);
1859                         } else {
1860                                 codec->spdif_mask &= ~(0x02);
1861                                 codec->spdif_mask &= ~(0x04);
1862                                 snd_ali_disable_spdif_out(codec);
1863                         }
1864                 }
1865                 break;
1866         case 1:
1867                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1868                 change = change ^ spdif_enable;
1869                 if (change && (codec->spdif_mask & 0x02)) {
1870                         if (spdif_enable) {
1871                                 codec->spdif_mask |= 0x04;
1872                                 snd_ali_enable_spdif_chnout(codec);
1873                         } else {
1874                                 codec->spdif_mask &= ~(0x04);
1875                                 snd_ali_disable_spdif_chnout(codec);
1876                         }
1877                 }
1878                 break;
1879         case 2:
1880                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1881                 change = change ^ spdif_enable;
1882                 if (change) {
1883                         if (spdif_enable) {
1884                                 codec->spdif_mask |= 0x01;
1885                                 snd_ali_enable_spdif_in(codec);
1886                         } else {
1887                                 codec->spdif_mask &= ~(0x01);
1888                                 snd_ali_disable_spdif_in(codec);
1889                         }
1890                 }
1891                 break;
1892         default:
1893                 break;
1894         }
1895         spin_unlock_irq(&codec->reg_lock);
1896
1897         return change;
1898 }
1899
1900 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
1901         /* spdif aplayback switch */
1902         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1903         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1904         /* spdif out to spdif channel */
1905         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1906         /* spdif in from spdif channel */
1907         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1908 };
1909
1910 static int __devinit snd_ali_mixer(struct snd_ali * codec)
1911 {
1912         struct snd_ac97_template ac97;
1913         unsigned int idx;
1914         int i, err;
1915         static struct snd_ac97_bus_ops ops = {
1916                 .write = snd_ali_codec_write,
1917                 .read = snd_ali_codec_read,
1918         };
1919
1920         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1921         if (err < 0)
1922                 return err;
1923
1924         memset(&ac97, 0, sizeof(ac97));
1925         ac97.private_data = codec;
1926
1927         for (i = 0; i < codec->num_of_codecs; i++) {
1928                 ac97.num = i;
1929                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1930                 if (err < 0) {
1931                         snd_printk(KERN_ERR
1932                                    "ali mixer %d creating error.\n", i);
1933                         if (i == 0)
1934                                 return err;
1935                         codec->num_of_codecs = 1;
1936                         break;
1937                 }
1938         }
1939
1940         if (codec->spdif_support) {
1941                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1942                         err = snd_ctl_add(codec->card,
1943                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1944                         if (err < 0)
1945                                 return err;
1946                 }
1947         }
1948         return 0;
1949 }
1950
1951 #ifdef CONFIG_PM
1952 static int ali_suspend(struct pci_dev *pci, pm_message_t state)
1953 {
1954         struct snd_card *card = pci_get_drvdata(pci);
1955         struct snd_ali *chip = card->private_data;
1956         struct snd_ali_image *im;
1957         int i, j;
1958
1959         im = chip->image;
1960         if (!im)
1961                 return 0;
1962
1963         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1964         for (i = 0; i < chip->num_of_codecs; i++) {
1965                 snd_pcm_suspend_all(chip->pcm[i]);
1966                 snd_ac97_suspend(chip->ac97[i]);
1967         }
1968
1969         spin_lock_irq(&chip->reg_lock);
1970
1971         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1972         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1973         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1974
1975         /* disable all IRQ bits */
1976         outl(0, ALI_REG(chip, ALI_MISCINT));
1977
1978         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1979                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1980                         continue;
1981                 im->regs[i] = inl(ALI_REG(chip, i*4));
1982         }
1983
1984         for (i = 0; i < ALI_CHANNELS; i++) {
1985                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1986                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1987                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1988         }
1989
1990         /* stop all HW channel */
1991         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1992
1993         spin_unlock_irq(&chip->reg_lock);
1994
1995         pci_disable_device(pci);
1996         pci_save_state(pci);
1997         pci_set_power_state(pci, pci_choose_state(pci, state));
1998         return 0;
1999 }
2000
2001 static int ali_resume(struct pci_dev *pci)
2002 {
2003         struct snd_card *card = pci_get_drvdata(pci);
2004         struct snd_ali *chip = card->private_data;
2005         struct snd_ali_image *im;
2006         int i, j;
2007
2008         im = chip->image;
2009         if (!im)
2010                 return 0;
2011
2012         pci_set_power_state(pci, PCI_D0);
2013         pci_restore_state(pci);
2014         if (pci_enable_device(pci) < 0) {
2015                 printk(KERN_ERR "ali5451: pci_enable_device failed, "
2016                        "disabling device\n");
2017                 snd_card_disconnect(card);
2018                 return -EIO;
2019         }
2020         pci_set_master(pci);
2021
2022         spin_lock_irq(&chip->reg_lock);
2023
2024         for (i = 0; i < ALI_CHANNELS; i++) {
2025                 outb(i, ALI_REG(chip, ALI_GC_CIR));
2026                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2027                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
2028         }
2029
2030         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2031                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
2032                     (i*4 == ALI_START))
2033                         continue;
2034                 outl(im->regs[i], ALI_REG(chip, i*4));
2035         }
2036
2037         /* start HW channel */
2038         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
2039         /* restore IRQ enable bits */
2040         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
2041
2042         spin_unlock_irq(&chip->reg_lock);
2043
2044         for (i = 0 ; i < chip->num_of_codecs; i++)
2045                 snd_ac97_resume(chip->ac97[i]);
2046
2047         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2048         return 0;
2049 }
2050 #endif /* CONFIG_PM */
2051
2052 static int snd_ali_free(struct snd_ali * codec)
2053 {
2054         if (codec->hw_initialized)
2055                 snd_ali_disable_address_interrupt(codec);
2056         if (codec->irq >= 0)
2057                 free_irq(codec->irq, codec);
2058         if (codec->port)
2059                 pci_release_regions(codec->pci);
2060         pci_disable_device(codec->pci);
2061 #ifdef CONFIG_PM
2062         kfree(codec->image);
2063 #endif
2064         pci_dev_put(codec->pci_m1533);
2065         pci_dev_put(codec->pci_m7101);
2066         kfree(codec);
2067         return 0;
2068 }
2069
2070 static int snd_ali_chip_init(struct snd_ali *codec)
2071 {
2072         unsigned int legacy;
2073         unsigned char temp;
2074         struct pci_dev *pci_dev;
2075
2076         snd_ali_printk("chip initializing ... \n");
2077
2078         if (snd_ali_reset_5451(codec)) {
2079                 snd_printk(KERN_ERR "ali_chip_init: reset 5451 error.\n");
2080                 return -1;
2081         }
2082
2083         if (codec->revision == ALI_5451_V02) {
2084                 pci_dev = codec->pci_m1533;
2085                 pci_read_config_byte(pci_dev, 0x59, &temp);
2086                 temp |= 0x80;
2087                 pci_write_config_byte(pci_dev, 0x59, temp);
2088
2089                 pci_dev = codec->pci_m7101;
2090                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2091                 temp |= 0x20;
2092                 pci_write_config_byte(pci_dev, 0xB8, temp);
2093         }
2094
2095         pci_read_config_dword(codec->pci, 0x44, &legacy);
2096         legacy &= 0xff00ff00;
2097         legacy |= 0x000800aa;
2098         pci_write_config_dword(codec->pci, 0x44, legacy);
2099
2100         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2101         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2102         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2103         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2104         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2105
2106         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2107         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2108                                                     AC97_EXTENDED_STATUS);
2109         if (codec->spdif_support) {
2110                 snd_ali_enable_spdif_out(codec);
2111                 codec->spdif_mask = 0x00000002;
2112         }
2113
2114         codec->num_of_codecs = 1;
2115
2116         /* secondary codec - modem */
2117         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2118                 codec->num_of_codecs++;
2119                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2120                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2121                       ALI_SCTRL_LINE_OUT_EN),
2122                      ALI_REG(codec, ALI_SCTRL));
2123         }
2124
2125         snd_ali_printk("chip initialize succeed.\n");
2126         return 0;
2127
2128 }
2129
2130 /* proc for register dump */
2131 static void snd_ali_proc_read(struct snd_info_entry *entry,
2132                               struct snd_info_buffer *buf)
2133 {
2134         struct snd_ali *codec = entry->private_data;
2135         int i;
2136         for (i = 0; i < 256 ; i+= 4)
2137                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2138 }
2139
2140 static void __devinit snd_ali_proc_init(struct snd_ali *codec)
2141 {
2142         struct snd_info_entry *entry;
2143         if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2144                 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2145 }
2146
2147 static int __devinit snd_ali_resources(struct snd_ali *codec)
2148 {
2149         int err;
2150
2151         snd_ali_printk("resources allocation ...\n");
2152         err = pci_request_regions(codec->pci, "ALI 5451");
2153         if (err < 0)
2154                 return err;
2155         codec->port = pci_resource_start(codec->pci, 0);
2156
2157         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2158                         IRQF_SHARED, "ALI 5451", codec)) {
2159                 snd_printk(KERN_ERR "Unable to request irq.\n");
2160                 return -EBUSY;
2161         }
2162         codec->irq = codec->pci->irq;
2163         snd_ali_printk("resources allocated.\n");
2164         return 0;
2165 }
2166 static int snd_ali_dev_free(struct snd_device *device)
2167 {
2168         struct snd_ali *codec = device->device_data;
2169         snd_ali_free(codec);
2170         return 0;
2171 }
2172
2173 static int __devinit snd_ali_create(struct snd_card *card,
2174                                     struct pci_dev *pci,
2175                                     int pcm_streams,
2176                                     int spdif_support,
2177                                     struct snd_ali ** r_ali)
2178 {
2179         struct snd_ali *codec;
2180         int i, err;
2181         unsigned short cmdw;
2182         static struct snd_device_ops ops = {
2183                 .dev_free = snd_ali_dev_free,
2184         };
2185
2186         *r_ali = NULL;
2187
2188         snd_ali_printk("creating ...\n");
2189
2190         /* enable PCI device */
2191         err = pci_enable_device(pci);
2192         if (err < 0)
2193                 return err;
2194         /* check, if we can restrict PCI DMA transfers to 31 bits */
2195         if (pci_set_dma_mask(pci, DMA_BIT_MASK(31)) < 0 ||
2196             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(31)) < 0) {
2197                 snd_printk(KERN_ERR "architecture does not support "
2198                            "31bit PCI busmaster DMA\n");
2199                 pci_disable_device(pci);
2200                 return -ENXIO;
2201         }
2202
2203         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2204         if (!codec) {
2205                 pci_disable_device(pci);
2206                 return -ENOMEM;
2207         }
2208
2209         spin_lock_init(&codec->reg_lock);
2210         spin_lock_init(&codec->voice_alloc);
2211
2212         codec->card = card;
2213         codec->pci = pci;
2214         codec->irq = -1;
2215         codec->revision = pci->revision;
2216         codec->spdif_support = spdif_support;
2217
2218         if (pcm_streams < 1)
2219                 pcm_streams = 1;
2220         if (pcm_streams > 32)
2221                 pcm_streams = 32;
2222
2223         pci_set_master(pci);
2224         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2225         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2226                 cmdw |= PCI_COMMAND_IO;
2227                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2228         }
2229         pci_set_master(pci);
2230
2231         if (snd_ali_resources(codec)) {
2232                 snd_ali_free(codec);
2233                 return -EBUSY;
2234         }
2235
2236         synchronize_irq(pci->irq);
2237
2238         codec->synth.chmap = 0;
2239         codec->synth.chcnt = 0;
2240         codec->spdif_mask = 0;
2241         codec->synth.synthcount = 0;
2242
2243         if (codec->revision == ALI_5451_V02)
2244                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2245         else
2246                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2247         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2248
2249         codec->chregs.regs.start  = ALI_START;
2250         codec->chregs.regs.stop   = ALI_STOP;
2251         codec->chregs.regs.aint   = ALI_AINT;
2252         codec->chregs.regs.ainten = ALI_AINTEN;
2253
2254         codec->chregs.data.start  = 0x00;
2255         codec->chregs.data.stop   = 0x00;
2256         codec->chregs.data.aint   = 0x00;
2257         codec->chregs.data.ainten = 0x00;
2258
2259         /* M1533: southbridge */
2260         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2261         if (!codec->pci_m1533) {
2262                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2263                 snd_ali_free(codec);
2264                 return -ENODEV;
2265         }
2266         /* M7101: power management */
2267         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2268         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2269                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2270                 snd_ali_free(codec);
2271                 return -ENODEV;
2272         }
2273
2274         snd_ali_printk("snd_device_new is called.\n");
2275         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2276         if (err < 0) {
2277                 snd_ali_free(codec);
2278                 return err;
2279         }
2280
2281         snd_card_set_dev(card, &pci->dev);
2282
2283         /* initialise synth voices*/
2284         for (i = 0; i < ALI_CHANNELS; i++)
2285                 codec->synth.voices[i].number = i;
2286
2287         err = snd_ali_chip_init(codec);
2288         if (err < 0) {
2289                 snd_printk(KERN_ERR "ali create: chip init error.\n");
2290                 return err;
2291         }
2292
2293 #ifdef CONFIG_PM
2294         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2295         if (!codec->image)
2296                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2297 #endif
2298
2299         snd_ali_enable_address_interrupt(codec);
2300         codec->hw_initialized = 1;
2301
2302         *r_ali = codec;
2303         snd_ali_printk("created.\n");
2304         return 0;
2305 }
2306
2307 static int __devinit snd_ali_probe(struct pci_dev *pci,
2308                                    const struct pci_device_id *pci_id)
2309 {
2310         struct snd_card *card;
2311         struct snd_ali *codec;
2312         int err;
2313
2314         snd_ali_printk("probe ...\n");
2315
2316         err = snd_card_create(index, id, THIS_MODULE, 0, &card);
2317         if (err < 0)
2318                 return err;
2319
2320         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2321         if (err < 0)
2322                 goto error;
2323         card->private_data = codec;
2324
2325         snd_ali_printk("mixer building ...\n");
2326         err = snd_ali_mixer(codec);
2327         if (err < 0)
2328                 goto error;
2329
2330         snd_ali_printk("pcm building ...\n");
2331         err = snd_ali_build_pcms(codec);
2332         if (err < 0)
2333                 goto error;
2334
2335         snd_ali_proc_init(codec);
2336
2337         strcpy(card->driver, "ALI5451");
2338         strcpy(card->shortname, "ALI 5451");
2339
2340         sprintf(card->longname, "%s at 0x%lx, irq %i",
2341                 card->shortname, codec->port, codec->irq);
2342
2343         snd_ali_printk("register card.\n");
2344         err = snd_card_register(card);
2345         if (err < 0)
2346                 goto error;
2347
2348         pci_set_drvdata(pci, card);
2349         return 0;
2350
2351  error:
2352         snd_card_free(card);
2353         return err;
2354 }
2355
2356 static void __devexit snd_ali_remove(struct pci_dev *pci)
2357 {
2358         snd_card_free(pci_get_drvdata(pci));
2359         pci_set_drvdata(pci, NULL);
2360 }
2361
2362 static struct pci_driver driver = {
2363         .name = "ALI 5451",
2364         .id_table = snd_ali_ids,
2365         .probe = snd_ali_probe,
2366         .remove = __devexit_p(snd_ali_remove),
2367 #ifdef CONFIG_PM
2368         .suspend = ali_suspend,
2369         .resume = ali_resume,
2370 #endif
2371 };
2372
2373 static int __init alsa_card_ali_init(void)
2374 {
2375         return pci_register_driver(&driver);
2376 }
2377
2378 static void __exit alsa_card_ali_exit(void)
2379 {
2380         pci_unregister_driver(&driver);
2381 }
2382
2383 module_init(alsa_card_ali_init)
2384 module_exit(alsa_card_ali_exit)