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 <sound/driver.h>
  29 #include <asm/io.h>
  30 #include <linux/delay.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/init.h>
  33 #include <linux/pci.h>
  34 #include <linux/slab.h>
  35 #include <linux/moduleparam.h>
  36 #include <linux/dma-mapping.h>
  37 #include <sound/core.h>
  38 #include <sound/pcm.h>
  39 #include <sound/info.h>
  40 #include <sound/ac97_codec.h>
  41 #include <sound/mpu401.h>
  42 #include <sound/initval.h>
  43
  44 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
  45 MODULE_DESCRIPTION("ALI M5451");
  46 MODULE_LICENSE("GPL");
  47 MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
  48
  49 static int index = SNDRV_DEFAULT_IDX1;  /* Index */
  50 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  51 static int pcm_channels = 32;
  52 static int spdif;
  53
  54 module_param(index, int, 0444);
  55 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  56 module_param(id, charp, 0444);
  57 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  58 module_param(pcm_channels, int, 0444);
  59 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  60 module_param(spdif, bool, 0444);
  61 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  62
  63 /* just for backward compatibility */
  64 static int enable;
  65 module_param(enable, bool, 0444);
  66
  67
  68 /*
  69  *  Debug part definitions
  70  */
  71
  72 /* #define ALI_DEBUG */
  73
  74 #ifdef ALI_DEBUG
  75 #define snd_ali_printk(format, args...) printk(KERN_DEBUG format, ##args);
  76 #else
  77 #define snd_ali_printk(format, args...)
  78 #endif
  79
  80 /*
  81  *  Constants definition
  82  */
  83
  84 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  85
  86
  87 #define ALI_CHANNELS            32
  88
  89 #define ALI_PCM_IN_CHANNEL      31
  90 #define ALI_SPDIF_IN_CHANNEL    19
  91 #define ALI_SPDIF_OUT_CHANNEL   15
  92 #define ALI_CENTER_CHANNEL      24
  93 #define ALI_LEF_CHANNEL         23
  94 #define ALI_SURR_LEFT_CHANNEL   26
  95 #define ALI_SURR_RIGHT_CHANNEL  25
  96 #define ALI_MODEM_IN_CHANNEL    21
  97 #define ALI_MODEM_OUT_CHANNEL   20
  98
  99 #define SNDRV_ALI_VOICE_TYPE_PCM        01
 100 #define SNDRV_ALI_VOICE_TYPE_OTH        02
 101
 102 #define ALI_5451_V02            0x02
 103
 104 /*
 105  *  Direct Registers
 106  */
 107
 108 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
 109 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
 110 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
 111 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
 112 #define ALI_MPUR0               0x20
 113 #define ALI_MPUR1               0x21
 114 #define ALI_MPUR2               0x22
 115 #define ALI_MPUR3               0x23
 116
 117 #define ALI_AC97_WRITE          0x40
 118 #define ALI_AC97_READ           0x44
 119
 120 #define ALI_SCTRL               0x48
 121 #define   ALI_SPDIF_OUT_ENABLE          0x20
 122 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
 123 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
 124 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
 125 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
 126 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
 127 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 128 #define ALI_AC97_GPIO           0x4c
 129 #define   ALI_AC97_GPIO_ENABLE          0x8000
 130 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 131 #define ALI_SPDIF_CS            0x70
 132 #define ALI_SPDIF_CTRL          0x74
 133 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 134 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 135 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 136 #define ALI_START               0x80
 137 #define ALI_STOP                0x84
 138 #define ALI_CSPF                0x90
 139 #define ALI_AINT                0x98
 140 #define ALI_GC_CIR              0xa0
 141         #define ENDLP_IE                0x00001000
 142         #define MIDLP_IE                0x00002000
 143 #define ALI_AINTEN              0xa4
 144 #define ALI_VOLUME              0xa8
 145 #define ALI_SBDELTA_DELTA_R     0xac
 146 #define ALI_MISCINT             0xb0
 147         #define ADDRESS_IRQ             0x00000020
 148         #define TARGET_REACHED          0x00008000
 149         #define MIXER_OVERFLOW          0x00000800
 150         #define MIXER_UNDERFLOW         0x00000400
 151         #define GPIO_IRQ                0x01000000
 152 #define ALI_SBBL_SBCL           0xc0
 153 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 154 #define ALI_STIMER              0xc8
 155 #define ALI_GLOBAL_CONTROL      0xd4
 156 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 157 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 158 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 159 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 160 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 161
 162 #define ALI_CSO_ALPHA_FMS       0xe0
 163 #define ALI_LBA                 0xe4
 164 #define ALI_ESO_DELTA           0xe8
 165 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 166 #define ALI_EBUF1               0xf4
 167 #define ALI_EBUF2               0xf8
 168
 169 #define ALI_REG(codec, x) ((codec)->port + x)
 170
 171 #define MAX_CODECS 2
 172
 173
 174 struct snd_ali;
 175 struct snd_ali_voice;
 176
 177 struct snd_ali_channel_control {
 178         /* register data */
 179         struct REGDATA {
 180                 unsigned int start;
 181                 unsigned int stop;
 182                 unsigned int aint;
 183                 unsigned int ainten;
 184         } data;
 185
 186         /* register addresses */
 187         struct REGS {
 188                 unsigned int start;
 189                 unsigned int stop;
 190                 unsigned int aint;
 191                 unsigned int ainten;
 192                 unsigned int ac97read;
 193                 unsigned int ac97write;
 194         } regs;
 195
 196 };
 197
 198 struct snd_ali_voice {
 199         unsigned int number;
 200         unsigned int use :1,
 201                 pcm :1,
 202                 midi :1,
 203                 mode :1,
 204                 synth :1,
 205                 running :1;
 206
 207         /* PCM data */
 208         struct snd_ali *codec;
 209         struct snd_pcm_substream *substream;
 210         struct snd_ali_voice *extra;
 211
 212         int eso;                /* final ESO value for channel */
 213         int count;              /* runtime->period_size */
 214
 215         /* --- */
 216
 217         void *private_data;
 218         void (*private_free)(void *private_data);
 219 };
 220
 221
 222 struct snd_alidev {
 223
 224         struct snd_ali_voice voices[ALI_CHANNELS];
 225
 226         unsigned int    chcnt;                  /* num of opened channels */
 227         unsigned int    chmap;                  /* bitmap for opened channels */
 228         unsigned int synthcount;
 229
 230 };
 231
 232
 233 #define ALI_GLOBAL_REGS         56
 234 #define ALI_CHANNEL_REGS        8
 235 struct snd_ali_image {
 236         u32 regs[ALI_GLOBAL_REGS];
 237         u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 238 };
 239
 240
 241 struct snd_ali {
 242         int             irq;
 243         unsigned long   port;
 244         unsigned char   revision;
 245
 246         unsigned int hw_initialized :1;
 247         unsigned int spdif_support :1;
 248
 249         struct pci_dev  *pci;
 250         struct pci_dev  *pci_m1533;
 251         struct pci_dev  *pci_m7101;
 252
 253         struct snd_card *card;
 254         struct snd_pcm  *pcm[MAX_CODECS];
 255         struct snd_alidev       synth;
 256         struct snd_ali_channel_control chregs;
 257
 258         /* S/PDIF Mask */
 259         unsigned int    spdif_mask;
 260
 261         unsigned int spurious_irq_count;
 262         unsigned int spurious_irq_max_delta;
 263
 264         unsigned int num_of_codecs;
 265
 266         struct snd_ac97_bus *ac97_bus;
 267         struct snd_ac97 *ac97[MAX_CODECS];
 268         unsigned short  ac97_ext_id;
 269         unsigned short  ac97_ext_status;
 270
 271         spinlock_t      reg_lock;
 272         spinlock_t      voice_alloc;
 273
 274 #ifdef CONFIG_PM
 275         struct snd_ali_image *image;
 276 #endif
 277 };
 278
 279 static struct pci_device_id snd_ali_ids[] = {
 280         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 281         {0, }
 282 };
 283 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 284
 285 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 286 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 287 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 288                                unsigned short);
 289
 290 /*
 291  *  AC97 ACCESS
 292  */
 293
 294 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 295                                              unsigned int port)
 296 {
 297         return (unsigned int)inl(ALI_REG(codec, port));
 298 }
 299
 300 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 301                                      unsigned int port,
 302                                      unsigned int val)
 303 {
 304         outl((unsigned int)val, ALI_REG(codec, port));
 305 }
 306
 307 static int snd_ali_codec_ready(struct snd_ali *codec,
 308                                unsigned int port)
 309 {
 310         unsigned long end_time;
 311         unsigned int res;
 312
 313         end_time = jiffies + msecs_to_jiffies(250);
 314         do {
 315                 res = snd_ali_5451_peek(codec,port);
 316                 if (!(res & 0x8000))
 317                         return 0;
 318                 schedule_timeout_uninterruptible(1);
 319         } while (time_after_eq(end_time, jiffies));
 320         snd_ali_5451_poke(codec, port, res & ~0x8000);
 321         snd_printdd("ali_codec_ready: codec is not ready.\n ");
 322         return -EIO;
 323 }
 324
 325 static int snd_ali_stimer_ready(struct snd_ali *codec)
 326 {
 327         unsigned long end_time;
 328         unsigned long dwChk1,dwChk2;
 329
 330         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 331         dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 332
 333         end_time = jiffies + msecs_to_jiffies(250);
 334         do {
 335                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 336                 if (dwChk2 != dwChk1)
 337                         return 0;
 338                 schedule_timeout_uninterruptible(1);
 339         } while (time_after_eq(end_time, jiffies));
 340         snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n");
 341         return -EIO;
 342 }
 343
 344 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 345                                unsigned short reg,
 346                                unsigned short val)
 347 {
 348         unsigned int dwVal;
 349         unsigned int port;
 350
 351         if (reg >= 0x80) {
 352                 snd_printk(KERN_ERR "ali_codec_poke: reg(%xh) invalid.\n", reg);
 353                 return;
 354         }
 355
 356         port = codec->chregs.regs.ac97write;
 357
 358         if (snd_ali_codec_ready(codec, port) < 0)
 359                 return;
 360         if (snd_ali_stimer_ready(codec) < 0)
 361                 return;
 362
 363         dwVal  = (unsigned int) (reg & 0xff);
 364         dwVal |= 0x8000 | (val << 16);
 365         if (secondary)
 366                 dwVal |= 0x0080;
 367         if (codec->revision == ALI_5451_V02)
 368                 dwVal |= 0x0100;
 369
 370         snd_ali_5451_poke(codec, port, dwVal);
 371
 372         return ;
 373 }
 374
 375 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 376                                          int secondary,
 377                                          unsigned short reg)
 378 {
 379         unsigned int dwVal;
 380         unsigned int port;
 381
 382         if (reg >= 0x80) {
 383                 snd_printk(KERN_ERR "ali_codec_peek: reg(%xh) invalid.\n", reg);
 384                 return ~0;
 385         }
 386
 387         port = codec->chregs.regs.ac97read;
 388
 389         if (snd_ali_codec_ready(codec, port) < 0)
 390                 return ~0;
 391         if (snd_ali_stimer_ready(codec) < 0)
 392                 return ~0;
 393
 394         dwVal  = (unsigned int) (reg & 0xff);
 395         dwVal |= 0x8000;                                /* bit 15*/
 396         if (secondary)
 397                 dwVal |= 0x0080;
 398
 399         snd_ali_5451_poke(codec, port, dwVal);
 400
 401         if (snd_ali_stimer_ready(codec) < 0)
 402                 return ~0;
 403         if (snd_ali_codec_ready(codec, port) < 0)
 404                 return ~0;
 405
 406         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 407 }
 408
 409 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 410                                 unsigned short reg,
 411                                 unsigned short val )
 412 {
 413         struct snd_ali *codec = ac97->private_data;
 414
 415         snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
 416         if (reg == AC97_GPIO_STATUS) {
 417                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 418                      ALI_REG(codec, ALI_AC97_GPIO));
 419                 return;
 420         }
 421         snd_ali_codec_poke(codec, ac97->num, reg, val);
 422         return ;
 423 }
 424
 425
 426 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 427                                          unsigned short reg)
 428 {
 429         struct snd_ali *codec = ac97->private_data;
 430
 431         snd_ali_printk("codec_read reg=%xh.\n", reg);
 432         return snd_ali_codec_peek(codec, ac97->num, reg);
 433 }
 434
 435 /*
 436  *      AC97 Reset
 437  */
 438
 439 static int snd_ali_reset_5451(struct snd_ali *codec)
 440 {
 441         struct pci_dev *pci_dev;
 442         unsigned short wCount, wReg;
 443         unsigned int   dwVal;
 444
 445         pci_dev = codec->pci_m1533;
 446         if (pci_dev) {
 447                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 448                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 449                 udelay(5000);
 450                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 451                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 452                 udelay(5000);
 453         }
 454
 455         pci_dev = codec->pci;
 456         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 457         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 458         udelay(500);
 459         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 460         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 461         udelay(5000);
 462
 463         wCount = 200;
 464         while(wCount--) {
 465                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 466                 if ((wReg & 0x000f) == 0x000f)
 467                         return 0;
 468                 udelay(5000);
 469         }
 470
 471         /* non-fatal if you have a non PM capable codec */
 472         /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
 473         return 0;
 474 }
 475
 476 #ifdef CODEC_RESET
 477
 478 static int snd_ali_reset_codec(struct snd_ali *codec)
 479 {
 480         struct pci_dev *pci_dev;
 481         unsigned char bVal;
 482         unsigned int   dwVal;
 483         unsigned short wCount, wReg;
 484
 485         pci_dev = codec->pci_m1533;
 486
 487         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 488         pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 489         udelay(5000);
 490         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 491         pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 492         udelay(5000);
 493
 494         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 495         bVal |= 0x02;
 496         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 497         udelay(5000);
 498         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 499         bVal &= 0xfd;
 500         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 501         udelay(15000);
 502
 503         wCount = 200;
 504         while (wCount--) {
 505                 wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
 506                 if ((wReg & 0x000f) == 0x000f)
 507                         return 0;
 508                 udelay(5000);
 509         }
 510         return -1;
 511 }
 512
 513 #endif
 514
 515 /*
 516  *  ALI 5451 Controller
 517  */
 518
 519 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 520                                            unsigned int channel)
 521 {
 522         unsigned long dwVal;
 523
 524         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 525         dwVal |= 1 << (channel & 0x0000001f);
 526         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 527 }
 528
 529 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 530                                             unsigned int channel)
 531 {
 532         unsigned long dwVal;
 533
 534         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 535         dwVal &= ~(1 << (channel & 0x0000001f));
 536         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 537 }
 538
 539 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 540 {
 541         unsigned int gc;
 542
 543         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 544         gc |= ENDLP_IE;
 545         gc |= MIDLP_IE;
 546         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 547 }
 548
 549 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 550 {
 551         unsigned int gc;
 552
 553         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 554         gc &= ~ENDLP_IE;
 555         gc &= ~MIDLP_IE;
 556         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 557 }
 558
 559 #if 0 /* not used */
 560 static void snd_ali_enable_voice_irq(struct snd_ali *codec,
 561                                      unsigned int channel)
 562 {
 563         unsigned int mask;
 564         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 565
 566         snd_ali_printk("enable_voice_irq channel=%d\n",channel);
 567
 568         mask = 1 << (channel & 0x1f);
 569         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 570         pchregs->data.ainten |= mask;
 571         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 572 }
 573 #endif
 574
 575 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 576                                       unsigned int channel)
 577 {
 578         unsigned int mask;
 579         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 580
 581         snd_ali_printk("disable_voice_irq channel=%d\n",channel);
 582
 583         mask = 1 << (channel & 0x1f);
 584         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 585         pchregs->data.ainten &= ~mask;
 586         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 587 }
 588
 589 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 590 {
 591         unsigned int idx =  channel & 0x1f;
 592
 593         if (codec->synth.chcnt >= ALI_CHANNELS){
 594                 snd_printk(KERN_ERR
 595                            "ali_alloc_pcm_channel: no free channels.\n");
 596                 return -1;
 597         }
 598
 599         if (!(codec->synth.chmap & (1 << idx))) {
 600                 codec->synth.chmap |= 1 << idx;
 601                 codec->synth.chcnt++;
 602                 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
 603                 return idx;
 604         }
 605         return -1;
 606 }
 607
 608 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 609 {
 610         int idx;
 611         int result = -1;
 612
 613         snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
 614
 615         /* recording */
 616         if (rec) {
 617                 if (codec->spdif_support &&
 618                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 619                      ALI_SPDIF_IN_SUPPORT))
 620                         idx = ALI_SPDIF_IN_CHANNEL;
 621                 else
 622                         idx = ALI_PCM_IN_CHANNEL;
 623
 624                 result = snd_ali_alloc_pcm_channel(codec, idx);
 625                 if (result >= 0)
 626                         return result;
 627                 else {
 628                         snd_printk(KERN_ERR "ali_find_free_channel: "
 629                                    "record channel is busy now.\n");
 630                         return -1;
 631                 }
 632         }
 633
 634         /* playback... */
 635         if (codec->spdif_support &&
 636             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 637              ALI_SPDIF_OUT_CH_ENABLE)) {
 638                 idx = ALI_SPDIF_OUT_CHANNEL;
 639                 result = snd_ali_alloc_pcm_channel(codec, idx);
 640                 if (result >= 0)
 641                         return result;
 642                 else
 643                         snd_printk(KERN_ERR "ali_find_free_channel: "
 644                                    "S/PDIF out channel is in busy now.\n");
 645         }
 646
 647         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 648                 result = snd_ali_alloc_pcm_channel(codec, idx);
 649                 if (result >= 0)
 650                         return result;
 651         }
 652         snd_printk(KERN_ERR "ali_find_free_channel: no free channels.\n");
 653         return -1;
 654 }
 655
 656 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 657 {
 658         unsigned int idx = channel & 0x0000001f;
 659
 660         snd_ali_printk("free_channel_pcm channel=%d\n",channel);
 661
 662         if (channel < 0 || channel >= ALI_CHANNELS)
 663                 return;
 664
 665         if (!(codec->synth.chmap & (1 << idx))) {
 666                 snd_printk(KERN_ERR "ali_free_channel_pcm: "
 667                            "channel %d is not in use.\n", channel);
 668                 return;
 669         } else {
 670                 codec->synth.chmap &= ~(1 << idx);
 671                 codec->synth.chcnt--;
 672         }
 673 }
 674
 675 #if 0 /* not used */
 676 static void snd_ali_start_voice(struct snd_ali *codec, unsigned int channel)
 677 {
 678         unsigned int mask = 1 << (channel & 0x1f);
 679
 680         snd_ali_printk("start_voice: channel=%d\n",channel);
 681         outl(mask, ALI_REG(codec,codec->chregs.regs.start));
 682 }
 683 #endif
 684
 685 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 686 {
 687         unsigned int mask = 1 << (channel & 0x1f);
 688
 689         snd_ali_printk("stop_voice: channel=%d\n",channel);
 690         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 691 }
 692
 693 /*
 694  *    S/PDIF Part
 695  */
 696
 697 static void snd_ali_delay(struct snd_ali *codec,int interval)
 698 {
 699         unsigned long  begintimer,currenttimer;
 700
 701         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 702         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 703
 704         while (currenttimer < begintimer + interval) {
 705                 if (snd_ali_stimer_ready(codec) < 0)
 706                         break;
 707                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 708                 cpu_relax();
 709         }
 710 }
 711
 712 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 713 {
 714         u16 wval;
 715         u16 count = 0;
 716         u8  bval, R1 = 0, R2;
 717
 718         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 719         bval |= 0x1F;
 720         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 721
 722         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 723                 count ++;
 724                 snd_ali_delay(codec, 6);
 725                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 726                 R1 = bval & 0x1F;
 727         }
 728
 729         if (count > 50000) {
 730                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 731                 return;
 732         }
 733
 734         for (count = 0; count <= 50000; count++) {
 735                 snd_ali_delay(codec, 6);
 736                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 737                 R2 = bval & 0x1F;
 738                 if (R2 != R1)
 739                         R1 = R2;
 740                 else
 741                         break;
 742         }
 743
 744         if (count > 50000) {
 745                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 746                 return;
 747         }
 748
 749         if (R2 >= 0x0b && R2 <= 0x0e) {
 750                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 751                 wval &= 0xe0f0;
 752                 wval |= (0x09 << 8) | 0x05;
 753                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 754
 755                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 756                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 757         } else if (R2 == 0x12) {
 758                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 759                 wval &= 0xe0f0;
 760                 wval |= (0x0e << 8) | 0x08;
 761                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 762
 763                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 764                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 765         }
 766 }
 767
 768 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 769 {
 770         u32     dwRate;
 771         u8      bval;
 772
 773         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 774         bval &= 0x7f;
 775         bval |= 0x40;
 776         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 777
 778         snd_ali_detect_spdif_rate(codec);
 779
 780         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 781         bval &= 0x0f;
 782
 783         switch (bval) {
 784         case 0: dwRate = 44100; break;
 785         case 1: dwRate = 48000; break;
 786         case 2: dwRate = 32000; break;
 787         default: dwRate = 0; break;
 788         }
 789
 790         return dwRate;
 791 }
 792
 793 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 794 {
 795         unsigned int dwVal;
 796
 797         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 798         dwVal |= ALI_SPDIF_IN_SUPPORT;
 799         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 800
 801         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 802         dwVal |= 0x02;
 803         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 804
 805         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 806 }
 807
 808 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 809 {
 810         unsigned int dwVal;
 811
 812         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 813         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 814         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 815
 816         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 817 }
 818
 819
 820 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 821 {
 822         unsigned char  bVal;
 823         unsigned int  dwRate;
 824
 825         switch (rate) {
 826         case 32000: dwRate = 0x300; break;
 827         case 48000: dwRate = 0x200; break;
 828         default: dwRate = 0; break;
 829         }
 830
 831         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 832         bVal &= (unsigned char)(~(1<<6));
 833
 834         bVal |= 0x80;           /* select right */
 835         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 836         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 837
 838         bVal &= ~0x80;  /* select left */
 839         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 840         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 841 }
 842
 843 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 844 {
 845         unsigned short wVal;
 846         unsigned char bVal;
 847         struct pci_dev *pci_dev;
 848
 849         pci_dev = codec->pci_m1533;
 850         if (pci_dev == NULL)
 851                 return;
 852         pci_read_config_byte(pci_dev, 0x61, &bVal);
 853         bVal |= 0x40;
 854         pci_write_config_byte(pci_dev, 0x61, bVal);
 855         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 856         bVal |= 0x01;
 857         pci_write_config_byte(pci_dev, 0x7d, bVal);
 858
 859         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 860         bVal &= (~0x20);
 861         bVal |= 0x10;
 862         pci_write_config_byte(pci_dev, 0x7e, bVal);
 863
 864         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 865         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 866
 867         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 868         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 869
 870         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 871         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 872         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 873         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 874 }
 875
 876 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 877 {
 878         unsigned short wVal;
 879
 880         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 881         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 882         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 883 /*
 884         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 885         if (flag & ALI_SPDIF_OUT_NON_PCM)
 886                 wVal |= 0x0002;
 887         else
 888                 wVal &= (~0x0002);
 889         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 890 */
 891         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 892 }
 893
 894 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 895 {
 896         unsigned short wVal;
 897
 898         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 899         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 900         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 901
 902         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 903 }
 904
 905 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 906 {
 907         unsigned char  bVal;
 908
 909         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 910         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 911
 912         snd_ali_disable_spdif_chnout(codec);
 913 }
 914
 915 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 916 {
 917         struct snd_ali_voice *pvoice;
 918         struct snd_pcm_runtime *runtime;
 919         struct snd_ali_channel_control *pchregs;
 920         unsigned int old, mask;
 921 #ifdef ALI_DEBUG
 922         unsigned int temp, cspf;
 923 #endif
 924
 925         pchregs = &(codec->chregs);
 926
 927         /* check if interrupt occurred for channel */
 928         old  = pchregs->data.aint;
 929         mask = 1U << (channel & 0x1f);
 930
 931         if (!(old & mask))
 932                 return;
 933
 934         pvoice = &codec->synth.voices[channel];
 935         runtime = pvoice->substream->runtime;
 936
 937         udelay(100);
 938         spin_lock(&codec->reg_lock);
 939
 940         if (pvoice->pcm && pvoice->substream) {
 941                 /* pcm interrupt */
 942 #ifdef ALI_DEBUG
 943                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
 944                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
 945                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
 946 #endif
 947                 if (pvoice->running) {
 948                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",
 949                                        (u16)temp, cspf);
 950                         spin_unlock(&codec->reg_lock);
 951                         snd_pcm_period_elapsed(pvoice->substream);
 952                         spin_lock(&codec->reg_lock);
 953                 } else {
 954                         snd_ali_stop_voice(codec, channel);
 955                         snd_ali_disable_voice_irq(codec, channel);
 956                 }
 957         } else if (codec->synth.voices[channel].synth) {
 958                 /* synth interrupt */
 959         } else if (codec->synth.voices[channel].midi) {
 960                 /* midi interrupt */
 961         } else {
 962                 /* unknown interrupt */
 963                 snd_ali_stop_voice(codec, channel);
 964                 snd_ali_disable_voice_irq(codec, channel);
 965         }
 966         spin_unlock(&codec->reg_lock);
 967         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 968         pchregs->data.aint = old & (~mask);
 969 }
 970
 971 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 972 {
 973         struct snd_ali  *codec = dev_id;
 974         int channel;
 975         unsigned int audio_int;
 976         struct snd_ali_channel_control *pchregs;
 977
 978         if (codec == NULL || !codec->hw_initialized)
 979                 return IRQ_NONE;
 980
 981         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 982         if (!audio_int)
 983                 return IRQ_NONE;
 984
 985         pchregs = &(codec->chregs);
 986         if (audio_int & ADDRESS_IRQ) {
 987                 /* get interrupt status for all channels */
 988                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 989                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 990                         snd_ali_update_ptr(codec, channel);
 991         }
 992         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 993                 ALI_REG(codec, ALI_MISCINT));
 994
 995         return IRQ_HANDLED;
 996 }
 997
 998
 999 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
1000                                                  int type, int rec, int channel)
1001 {
1002         struct snd_ali_voice *pvoice;
1003         int idx;
1004
1005         snd_ali_printk("alloc_voice: type=%d rec=%d\n", type, rec);
1006
1007         spin_lock_irq(&codec->voice_alloc);
1008         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
1009                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
1010                         snd_ali_find_free_channel(codec,rec);
1011                 if (idx < 0) {
1012                         snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
1013                         spin_unlock_irq(&codec->voice_alloc);
1014                         return NULL;
1015                 }
1016                 pvoice = &(codec->synth.voices[idx]);
1017                 pvoice->codec = codec;
1018                 pvoice->use = 1;
1019                 pvoice->pcm = 1;
1020                 pvoice->mode = rec;
1021                 spin_unlock_irq(&codec->voice_alloc);
1022                 return pvoice;
1023         }
1024         spin_unlock_irq(&codec->voice_alloc);
1025         return NULL;
1026 }
1027
1028
1029 static void snd_ali_free_voice(struct snd_ali * codec,
1030                                struct snd_ali_voice *pvoice)
1031 {
1032         void (*private_free)(void *);
1033         void *private_data;
1034
1035         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
1036         if (pvoice == NULL || !pvoice->use)
1037                 return;
1038         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
1039         spin_lock_irq(&codec->voice_alloc);
1040         private_free = pvoice->private_free;
1041         private_data = pvoice->private_data;
1042         pvoice->private_free = NULL;
1043         pvoice->private_data = NULL;
1044         if (pvoice->pcm)
1045                 snd_ali_free_channel_pcm(codec, pvoice->number);
1046         pvoice->use = pvoice->pcm = pvoice->synth = 0;
1047         pvoice->substream = NULL;
1048         spin_unlock_irq(&codec->voice_alloc);
1049         if (private_free)
1050                 private_free(private_data);
1051 }
1052
1053
1054 static void snd_ali_clear_voices(struct snd_ali *codec,
1055                                  unsigned int v_min,
1056                                  unsigned int v_max)
1057 {
1058         unsigned int i;
1059
1060         for (i = v_min; i <= v_max; i++) {
1061                 snd_ali_stop_voice(codec, i);
1062                 snd_ali_disable_voice_irq(codec, i);
1063         }
1064 }
1065
1066 static void snd_ali_write_voice_regs(struct snd_ali *codec,
1067                          unsigned int Channel,
1068                          unsigned int LBA,
1069                          unsigned int CSO,
1070                          unsigned int ESO,
1071                          unsigned int DELTA,
1072                          unsigned int ALPHA_FMS,
1073                          unsigned int GVSEL,
1074                          unsigned int PAN,
1075                          unsigned int VOL,
1076                          unsigned int CTRL,
1077                          unsigned int EC)
1078 {
1079         unsigned int ctlcmds[4];
1080
1081         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1082
1083         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1084         ctlcmds[1] =  LBA;
1085         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1086         ctlcmds[3] =  (GVSEL << 31) |
1087                       ((PAN & 0x0000007f) << 24) |
1088                       ((VOL & 0x000000ff) << 16) |
1089                       ((CTRL & 0x0000000f) << 12) |
1090                       (EC & 0x00000fff);
1091
1092         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1093
1094         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1095         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1096         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1097         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1098
1099         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1100         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1101 }
1102
1103 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1104 {
1105         unsigned int delta;
1106
1107         if (rate < 4000)
1108                 rate = 4000;
1109         if (rate > 48000)
1110                 rate = 48000;
1111
1112         if (rec) {
1113                 if (rate == 44100)
1114                         delta = 0x116a;
1115                 else if (rate == 8000)
1116                         delta = 0x6000;
1117                 else if (rate == 48000)
1118                         delta = 0x1000;
1119                 else
1120                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1121         } else {
1122                 if (rate == 44100)
1123                         delta = 0xeb3;
1124                 else if (rate == 8000)
1125                         delta = 0x2ab;
1126                 else if (rate == 48000)
1127                         delta = 0x1000;
1128                 else
1129                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1130         }
1131
1132         return delta;
1133 }
1134
1135 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1136 {
1137         unsigned int CTRL;
1138         struct snd_pcm_runtime *runtime = substream->runtime;
1139
1140         /* set ctrl mode
1141            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1142          */
1143         CTRL = 0x00000001;
1144         if (snd_pcm_format_width(runtime->format) == 16)
1145                 CTRL |= 0x00000008;     /* 16-bit data */
1146         if (!snd_pcm_format_unsigned(runtime->format))
1147                 CTRL |= 0x00000002;     /* signed data */
1148         if (runtime->channels > 1)
1149                 CTRL |= 0x00000004;     /* stereo data */
1150         return CTRL;
1151 }
1152
1153 /*
1154  *  PCM part
1155  */
1156
1157 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1158                                int cmd)
1159
1160 {
1161         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1162         struct snd_pcm_substream *s;
1163         unsigned int what, whati, capture_flag;
1164         struct snd_ali_voice *pvoice, *evoice;
1165         unsigned int val;
1166         int do_start;
1167
1168         switch (cmd) {
1169         case SNDRV_PCM_TRIGGER_START:
1170         case SNDRV_PCM_TRIGGER_RESUME:
1171                 do_start = 1;
1172                 break;
1173         case SNDRV_PCM_TRIGGER_STOP:
1174         case SNDRV_PCM_TRIGGER_SUSPEND:
1175                 do_start = 0;
1176                 break;
1177         default:
1178                 return -EINVAL;
1179         }
1180
1181         what = whati = capture_flag = 0;
1182         snd_pcm_group_for_each_entry(s, substream) {
1183                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1184                         pvoice = s->runtime->private_data;
1185                         evoice = pvoice->extra;
1186                         what |= 1 << (pvoice->number & 0x1f);
1187                         if (evoice == NULL)
1188                                 whati |= 1 << (pvoice->number & 0x1f);
1189                         else {
1190                                 whati |= 1 << (evoice->number & 0x1f);
1191                                 what |= 1 << (evoice->number & 0x1f);
1192                         }
1193                         if (do_start) {
1194                                 pvoice->running = 1;
1195                                 if (evoice != NULL)
1196                                         evoice->running = 1;
1197                         } else {
1198                                 pvoice->running = 0;
1199                                 if (evoice != NULL)
1200                                         evoice->running = 0;
1201                         }
1202                         snd_pcm_trigger_done(s, substream);
1203                         if (pvoice->mode)
1204                                 capture_flag = 1;
1205                 }
1206         }
1207         spin_lock(&codec->reg_lock);
1208         if (!do_start)
1209                 outl(what, ALI_REG(codec, ALI_STOP));
1210         val = inl(ALI_REG(codec, ALI_AINTEN));
1211         if (do_start)
1212                 val |= whati;
1213         else
1214                 val &= ~whati;
1215         outl(val, ALI_REG(codec, ALI_AINTEN));
1216         if (do_start)
1217                 outl(what, ALI_REG(codec, ALI_START));
1218         snd_ali_printk("trigger: what=%xh whati=%xh\n", what, whati);
1219         spin_unlock(&codec->reg_lock);
1220
1221         return 0;
1222 }
1223
1224 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1225                                       struct snd_pcm_hw_params *hw_params)
1226 {
1227         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1228         struct snd_pcm_runtime *runtime = substream->runtime;
1229         struct snd_ali_voice *pvoice = runtime->private_data;
1230         struct snd_ali_voice *evoice = pvoice->extra;
1231         int err;
1232
1233         err = snd_pcm_lib_malloc_pages(substream,
1234                                        params_buffer_bytes(hw_params));
1235         if (err < 0)
1236                 return err;
1237
1238         /* voice management */
1239
1240         if (params_buffer_size(hw_params) / 2 !=
1241             params_period_size(hw_params)) {
1242                 if (!evoice) {
1243                         evoice = snd_ali_alloc_voice(codec,
1244                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1245                                                      0, -1);
1246                         if (!evoice)
1247                                 return -ENOMEM;
1248                         pvoice->extra = evoice;
1249                         evoice->substream = substream;
1250                 }
1251         } else {
1252                 if (evoice) {
1253                         snd_ali_free_voice(codec, evoice);
1254                         pvoice->extra = evoice = NULL;
1255                 }
1256         }
1257
1258         return 0;
1259 }
1260
1261 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1262 {
1263         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1264         struct snd_pcm_runtime *runtime = substream->runtime;
1265         struct snd_ali_voice *pvoice = runtime->private_data;
1266         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1267
1268         snd_pcm_lib_free_pages(substream);
1269         if (evoice) {
1270                 snd_ali_free_voice(codec, evoice);
1271                 pvoice->extra = NULL;
1272         }
1273         return 0;
1274 }
1275
1276 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1277                              struct snd_pcm_hw_params *hw_params)
1278 {
1279         return snd_pcm_lib_malloc_pages(substream,
1280                                         params_buffer_bytes(hw_params));
1281 }
1282
1283 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1284 {
1285         return snd_pcm_lib_free_pages(substream);
1286 }
1287
1288 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1289 {
1290         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1291         struct snd_pcm_runtime *runtime = substream->runtime;
1292         struct snd_ali_voice *pvoice = runtime->private_data;
1293         struct snd_ali_voice *evoice = pvoice->extra;
1294
1295         unsigned int LBA;
1296         unsigned int Delta;
1297         unsigned int ESO;
1298         unsigned int CTRL;
1299         unsigned int GVSEL;
1300         unsigned int PAN;
1301         unsigned int VOL;
1302         unsigned int EC;
1303
1304         snd_ali_printk("playback_prepare ...\n");
1305
1306         spin_lock_irq(&codec->reg_lock);
1307
1308         /* set Delta (rate) value */
1309         Delta = snd_ali_convert_rate(runtime->rate, 0);
1310
1311         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1312             pvoice->number == ALI_PCM_IN_CHANNEL)
1313                 snd_ali_disable_special_channel(codec, pvoice->number);
1314         else if (codec->spdif_support &&
1315                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1316                   ALI_SPDIF_OUT_CH_ENABLE)
1317                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1318                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1319                 Delta = 0x1000;
1320         }
1321
1322         /* set Loop Back Address */
1323         LBA = runtime->dma_addr;
1324
1325         /* set interrupt count size */
1326         pvoice->count = runtime->period_size;
1327
1328         /* set target ESO for channel */
1329         pvoice->eso = runtime->buffer_size;
1330
1331         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",
1332                        pvoice->eso, pvoice->count);
1333
1334         /* set ESO to capture first MIDLP interrupt */
1335         ESO = pvoice->eso -1;
1336         /* set ctrl mode */
1337         CTRL = snd_ali_control_mode(substream);
1338
1339         GVSEL = 1;
1340         PAN = 0;
1341         VOL = 0;
1342         EC = 0;
1343         snd_ali_printk("playback_prepare:\n");
1344         snd_ali_printk("ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1345                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1346         snd_ali_write_voice_regs(codec,
1347                                  pvoice->number,
1348                                  LBA,
1349                                  0,     /* cso */
1350                                  ESO,
1351                                  Delta,
1352                                  0,     /* alpha */
1353                                  GVSEL,
1354                                  PAN,
1355                                  VOL,
1356                                  CTRL,
1357                                  EC);
1358         if (evoice) {
1359                 evoice->count = pvoice->count;
1360                 evoice->eso = pvoice->count << 1;
1361                 ESO = evoice->eso - 1;
1362                 snd_ali_write_voice_regs(codec,
1363                                          evoice->number,
1364                                          LBA,
1365                                          0,     /* cso */
1366                                          ESO,
1367                                          Delta,
1368                                          0,     /* alpha */
1369                                          GVSEL,
1370                                          0x7f,
1371                                          0x3ff,
1372                                          CTRL,
1373                                          EC);
1374         }
1375         spin_unlock_irq(&codec->reg_lock);
1376         return 0;
1377 }
1378
1379
1380 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1381 {
1382         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1383         struct snd_pcm_runtime *runtime = substream->runtime;
1384         struct snd_ali_voice *pvoice = runtime->private_data;
1385         unsigned int LBA;
1386         unsigned int Delta;
1387         unsigned int ESO;
1388         unsigned int CTRL;
1389         unsigned int GVSEL;
1390         unsigned int PAN;
1391         unsigned int VOL;
1392         unsigned int EC;
1393         u8       bValue;
1394
1395         spin_lock_irq(&codec->reg_lock);
1396
1397         snd_ali_printk("ali_prepare...\n");
1398
1399         snd_ali_enable_special_channel(codec,pvoice->number);
1400
1401         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1402                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1403                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1404
1405         /* Prepare capture intr channel */
1406         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1407
1408                 unsigned int rate;
1409
1410                 spin_unlock_irq(&codec->reg_lock);
1411                 if (codec->revision != ALI_5451_V02)
1412                         return -1;
1413
1414                 rate = snd_ali_get_spdif_in_rate(codec);
1415                 if (rate == 0) {
1416                         snd_printk(KERN_WARNING "ali_capture_preapre: "
1417                                    "spdif rate detect err!\n");
1418                         rate = 48000;
1419                 }
1420                 spin_lock_irq(&codec->reg_lock);
1421                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1422                 if (bValue & 0x10) {
1423                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1424                         printk(KERN_WARNING "clear SPDIF parity error flag.\n");
1425                 }
1426
1427                 if (rate != 48000)
1428                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1429         }
1430
1431         /* set target ESO for channel  */
1432         pvoice->eso = runtime->buffer_size;
1433
1434         /* set interrupt count size  */
1435         pvoice->count = runtime->period_size;
1436
1437         /* set Loop Back Address  */
1438         LBA = runtime->dma_addr;
1439
1440         /* set ESO to capture first MIDLP interrupt  */
1441         ESO = pvoice->eso - 1;
1442         CTRL = snd_ali_control_mode(substream);
1443         GVSEL = 0;
1444         PAN = 0x00;
1445         VOL = 0x00;
1446         EC = 0;
1447
1448         snd_ali_write_voice_regs(    codec,
1449                                      pvoice->number,
1450                                      LBA,
1451                                      0, /* cso */
1452                                      ESO,
1453                                      Delta,
1454                                      0, /* alpha */
1455                                      GVSEL,
1456                                      PAN,
1457                                      VOL,
1458                                      CTRL,
1459                                      EC);
1460
1461         spin_unlock_irq(&codec->reg_lock);
1462
1463         return 0;
1464 }
1465
1466
1467 static snd_pcm_uframes_t
1468 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1469 {
1470         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1471         struct snd_pcm_runtime *runtime = substream->runtime;
1472         struct snd_ali_voice *pvoice = runtime->private_data;
1473         unsigned int cso;
1474
1475         spin_lock(&codec->reg_lock);
1476         if (!pvoice->running) {
1477                 spin_unlock(&codec->reg_lock);
1478                 return 0;
1479         }
1480         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1481         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1482         spin_unlock(&codec->reg_lock);
1483         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1484
1485         return cso;
1486 }
1487
1488
1489 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1490 {
1491         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1492         struct snd_pcm_runtime *runtime = substream->runtime;
1493         struct snd_ali_voice *pvoice = runtime->private_data;
1494         unsigned int cso;
1495
1496         spin_lock(&codec->reg_lock);
1497         if (!pvoice->running) {
1498                 spin_unlock_irq(&codec->reg_lock);
1499                 return 0;
1500         }
1501         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1502         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1503         spin_unlock(&codec->reg_lock);
1504
1505         return cso;
1506 }
1507
1508 static struct snd_pcm_hardware snd_ali_playback =
1509 {
1510         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1511                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1512                          SNDRV_PCM_INFO_MMAP_VALID |
1513                          SNDRV_PCM_INFO_RESUME |
1514                          SNDRV_PCM_INFO_SYNC_START),
1515         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1516                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1517         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1518         .rate_min =             4000,
1519         .rate_max =             48000,
1520         .channels_min =         1,
1521         .channels_max =         2,
1522         .buffer_bytes_max =     (256*1024),
1523         .period_bytes_min =     64,
1524         .period_bytes_max =     (256*1024),
1525         .periods_min =          1,
1526         .periods_max =          1024,
1527         .fifo_size =            0,
1528 };
1529
1530 /*
1531  *  Capture support device description
1532  */
1533
1534 static struct snd_pcm_hardware snd_ali_capture =
1535 {
1536         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1537                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1538                          SNDRV_PCM_INFO_MMAP_VALID |
1539                          SNDRV_PCM_INFO_RESUME |
1540                          SNDRV_PCM_INFO_SYNC_START),
1541         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1542                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1543         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1544         .rate_min =             4000,
1545         .rate_max =             48000,
1546         .channels_min =         1,
1547         .channels_max =         2,
1548         .buffer_bytes_max =     (128*1024),
1549         .period_bytes_min =     64,
1550         .period_bytes_max =     (128*1024),
1551         .periods_min =          1,
1552         .periods_max =          1024,
1553         .fifo_size =            0,
1554 };
1555
1556 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1557 {
1558         struct snd_ali_voice *pvoice = runtime->private_data;
1559         struct snd_ali *codec;
1560
1561         if (pvoice) {
1562                 codec = pvoice->codec;
1563                 snd_ali_free_voice(pvoice->codec, pvoice);
1564         }
1565 }
1566
1567 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1568                         int channel, struct snd_pcm_hardware *phw)
1569 {
1570         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1571         struct snd_pcm_runtime *runtime = substream->runtime;
1572         struct snd_ali_voice *pvoice;
1573
1574         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1575                                      channel);
1576         if (!pvoice)
1577                 return -EAGAIN;
1578
1579         pvoice->substream = substream;
1580         runtime->private_data = pvoice;
1581         runtime->private_free = snd_ali_pcm_free_substream;
1582
1583         runtime->hw = *phw;
1584         snd_pcm_set_sync(substream);
1585         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1586                                      0, 64*1024);
1587         return 0;
1588 }
1589
1590 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1591 {
1592         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1593 }
1594
1595 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1596 {
1597         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1598 }
1599
1600 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1601 {
1602         return 0;
1603 }
1604
1605 static int snd_ali_close(struct snd_pcm_substream *substream)
1606 {
1607         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1608         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1609
1610         snd_ali_disable_special_channel(codec,pvoice->number);
1611
1612         return 0;
1613 }
1614
1615 static struct snd_pcm_ops snd_ali_playback_ops = {
1616         .open =         snd_ali_playback_open,
1617         .close =        snd_ali_playback_close,
1618         .ioctl =        snd_pcm_lib_ioctl,
1619         .hw_params =    snd_ali_playback_hw_params,
1620         .hw_free =      snd_ali_playback_hw_free,
1621         .prepare =      snd_ali_playback_prepare,
1622         .trigger =      snd_ali_trigger,
1623         .pointer =      snd_ali_playback_pointer,
1624 };
1625
1626 static struct snd_pcm_ops snd_ali_capture_ops = {
1627         .open =         snd_ali_capture_open,
1628         .close =        snd_ali_close,
1629         .ioctl =        snd_pcm_lib_ioctl,
1630         .hw_params =    snd_ali_hw_params,
1631         .hw_free =      snd_ali_hw_free,
1632         .prepare =      snd_ali_prepare,
1633         .trigger =      snd_ali_trigger,
1634         .pointer =      snd_ali_pointer,
1635 };
1636
1637 /*
1638  * Modem PCM
1639  */
1640
1641 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1642                                  struct snd_pcm_hw_params *hw_params)
1643 {
1644         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1645         unsigned int modem_num = chip->num_of_codecs - 1;
1646         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1647                        params_rate(hw_params));
1648         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1649         return snd_ali_hw_params(substream, hw_params);
1650 }
1651
1652 static struct snd_pcm_hardware snd_ali_modem =
1653 {
1654         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1655                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1656                          SNDRV_PCM_INFO_MMAP_VALID |
1657                          SNDRV_PCM_INFO_RESUME |
1658                          SNDRV_PCM_INFO_SYNC_START),
1659         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1660         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1661                          SNDRV_PCM_RATE_16000),
1662         .rate_min =             8000,
1663         .rate_max =             16000,
1664         .channels_min =         1,
1665         .channels_max =         1,
1666         .buffer_bytes_max =     (256*1024),
1667         .period_bytes_min =     64,
1668         .period_bytes_max =     (256*1024),
1669         .periods_min =          1,
1670         .periods_max =          1024,
1671         .fifo_size =            0,
1672 };
1673
1674 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1675                               int channel)
1676 {
1677         static unsigned int rates[] = {8000, 9600, 12000, 16000};
1678         static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1679                 .count = ARRAY_SIZE(rates),
1680                 .list = rates,
1681                 .mask = 0,
1682         };
1683         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1684
1685         if (err)
1686                 return err;
1687         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1688                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1689 }
1690
1691 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1692 {
1693         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1694 }
1695
1696 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1697 {
1698         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1699 }
1700
1701 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1702         .open =         snd_ali_modem_playback_open,
1703         .close =        snd_ali_close,
1704         .ioctl =        snd_pcm_lib_ioctl,
1705         .hw_params =    snd_ali_modem_hw_params,
1706         .hw_free =      snd_ali_hw_free,
1707         .prepare =      snd_ali_prepare,
1708         .trigger =      snd_ali_trigger,
1709         .pointer =      snd_ali_pointer,
1710 };
1711
1712 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1713         .open =         snd_ali_modem_capture_open,
1714         .close =        snd_ali_close,
1715         .ioctl =        snd_pcm_lib_ioctl,
1716         .hw_params =    snd_ali_modem_hw_params,
1717         .hw_free =      snd_ali_hw_free,
1718         .prepare =      snd_ali_prepare,
1719         .trigger =      snd_ali_trigger,
1720         .pointer =      snd_ali_pointer,
1721 };
1722
1723
1724 struct ali_pcm_description {
1725         char *name;
1726         unsigned int playback_num;
1727         unsigned int capture_num;
1728         struct snd_pcm_ops *playback_ops;
1729         struct snd_pcm_ops *capture_ops;
1730         unsigned short class;
1731 };
1732
1733
1734 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1735 {
1736         struct snd_ali *codec = pcm->private_data;
1737         codec->pcm[pcm->device] = NULL;
1738 }
1739
1740
1741 static int __devinit snd_ali_pcm(struct snd_ali * codec, int device,
1742                                  struct ali_pcm_description *desc)
1743 {
1744         struct snd_pcm *pcm;
1745         int err;
1746
1747         err = snd_pcm_new(codec->card, desc->name, device,
1748                           desc->playback_num, desc->capture_num, &pcm);
1749         if (err < 0) {
1750                 snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
1751                 return err;
1752         }
1753         pcm->private_data = codec;
1754         pcm->private_free = snd_ali_pcm_free;
1755         if (desc->playback_ops)
1756                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1757                                 desc->playback_ops);
1758         if (desc->capture_ops)
1759                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1760                                 desc->capture_ops);
1761
1762         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1763                                               snd_dma_pci_data(codec->pci),
1764                                               64*1024, 128*1024);
1765
1766         pcm->info_flags = 0;
1767         pcm->dev_class = desc->class;
1768         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1769         strcpy(pcm->name, desc->name);
1770         codec->pcm[0] = pcm;
1771         return 0;
1772 }
1773
1774 static struct ali_pcm_description ali_pcms[] = {
1775         { .name = "ALI 5451",
1776           .playback_num = ALI_CHANNELS,
1777           .capture_num = 1,
1778           .playback_ops = &snd_ali_playback_ops,
1779           .capture_ops = &snd_ali_capture_ops
1780         },
1781         { .name = "ALI 5451 modem",
1782           .playback_num = 1,
1783           .capture_num = 1,
1784           .playback_ops = &snd_ali_modem_playback_ops,
1785           .capture_ops = &snd_ali_modem_capture_ops,
1786           .class = SNDRV_PCM_CLASS_MODEM
1787         }
1788 };
1789
1790 static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
1791 {
1792         int i, err;
1793         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1794                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1795                 if (err < 0)
1796                         return err;
1797         }
1798         return 0;
1799 }
1800
1801
1802 #define ALI5451_SPDIF(xname, xindex, value) \
1803 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1804 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1805 .put = snd_ali5451_spdif_put, .private_value = value}
1806
1807 static int snd_ali5451_spdif_info(struct snd_kcontrol *kcontrol,
1808                                   struct snd_ctl_elem_info *uinfo)
1809 {
1810         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1811         uinfo->count = 1;
1812         uinfo->value.integer.min = 0;
1813         uinfo->value.integer.max = 1;
1814         return 0;
1815 }
1816
1817 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1818                                  struct snd_ctl_elem_value *ucontrol)
1819 {
1820         struct snd_ali *codec = kcontrol->private_data;
1821         unsigned int enable;
1822
1823         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1824
1825         spin_lock_irq(&codec->reg_lock);
1826         switch (kcontrol->private_value) {
1827         case 0:
1828                 enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1829                 break;
1830         case 1:
1831                 enable = ((codec->spdif_mask & 0x02) &&
1832                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1833                 break;
1834         case 2:
1835                 enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1836                 break;
1837         default:
1838                 break;
1839         }
1840         ucontrol->value.integer.value[0] = enable;
1841         spin_unlock_irq(&codec->reg_lock);
1842         return 0;
1843 }
1844
1845 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1846                                  struct snd_ctl_elem_value *ucontrol)
1847 {
1848         struct snd_ali *codec = kcontrol->private_data;
1849         unsigned int change = 0, enable = 0;
1850
1851         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1852
1853         spin_lock_irq(&codec->reg_lock);
1854         switch (kcontrol->private_value) {
1855         case 0:
1856                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1857                 change = change ^ enable;
1858                 if (change) {
1859                         if (enable) {
1860                                 codec->spdif_mask |= 0x02;
1861                                 snd_ali_enable_spdif_out(codec);
1862                         } else {
1863                                 codec->spdif_mask &= ~(0x02);
1864                                 codec->spdif_mask &= ~(0x04);
1865                                 snd_ali_disable_spdif_out(codec);
1866                         }
1867                 }
1868                 break;
1869         case 1:
1870                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1871                 change = change ^ enable;
1872                 if (change && (codec->spdif_mask & 0x02)) {
1873                         if (enable) {
1874                                 codec->spdif_mask |= 0x04;
1875                                 snd_ali_enable_spdif_chnout(codec);
1876                         } else {
1877                                 codec->spdif_mask &= ~(0x04);
1878                                 snd_ali_disable_spdif_chnout(codec);
1879                         }
1880                 }
1881                 break;
1882         case 2:
1883                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1884                 change = change ^ enable;
1885                 if (change) {
1886                         if (enable) {
1887                                 codec->spdif_mask |= 0x01;
1888                                 snd_ali_enable_spdif_in(codec);
1889                         } else {
1890                                 codec->spdif_mask &= ~(0x01);
1891                                 snd_ali_disable_spdif_in(codec);
1892                         }
1893                 }
1894                 break;
1895         default:
1896                 break;
1897         }
1898         spin_unlock_irq(&codec->reg_lock);
1899
1900         return change;
1901 }
1902
1903 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
1904         /* spdif aplayback switch */
1905         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1906         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1907         /* spdif out to spdif channel */
1908         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1909         /* spdif in from spdif channel */
1910         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1911 };
1912
1913 static int __devinit snd_ali_mixer(struct snd_ali * codec)
1914 {
1915         struct snd_ac97_template ac97;
1916         unsigned int idx;
1917         int i, err;
1918         static struct snd_ac97_bus_ops ops = {
1919                 .write = snd_ali_codec_write,
1920                 .read = snd_ali_codec_read,
1921         };
1922
1923         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1924         if (err < 0)
1925                 return err;
1926
1927         memset(&ac97, 0, sizeof(ac97));
1928         ac97.private_data = codec;
1929
1930         for (i = 0; i < codec->num_of_codecs; i++) {
1931                 ac97.num = i;
1932                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1933                 if (err < 0) {
1934                         snd_printk(KERN_ERR
1935                                    "ali mixer %d creating error.\n", i);
1936                         if (i == 0)
1937                                 return err;
1938                         codec->num_of_codecs = 1;
1939                         break;
1940                 }
1941         }
1942
1943         if (codec->spdif_support) {
1944                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1945                         err = snd_ctl_add(codec->card,
1946                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1947                         if (err < 0)
1948                                 return err;
1949                 }
1950         }
1951         return 0;
1952 }
1953
1954 #ifdef CONFIG_PM
1955 static int ali_suspend(struct pci_dev *pci, pm_message_t state)
1956 {
1957         struct snd_card *card = pci_get_drvdata(pci);
1958         struct snd_ali *chip = card->private_data;
1959         struct snd_ali_image *im;
1960         int i, j;
1961
1962         im = chip->image;
1963         if (!im)
1964                 return 0;
1965
1966         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1967         for (i = 0; i < chip->num_of_codecs; i++) {
1968                 snd_pcm_suspend_all(chip->pcm[i]);
1969                 snd_ac97_suspend(chip->ac97[i]);
1970         }
1971
1972         spin_lock_irq(&chip->reg_lock);
1973
1974         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1975         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1976         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1977
1978         /* disable all IRQ bits */
1979         outl(0, ALI_REG(chip, ALI_MISCINT));
1980
1981         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1982                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1983                         continue;
1984                 im->regs[i] = inl(ALI_REG(chip, i*4));
1985         }
1986
1987         for (i = 0; i < ALI_CHANNELS; i++) {
1988                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1989                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1990                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1991         }
1992
1993         /* stop all HW channel */
1994         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1995
1996         spin_unlock_irq(&chip->reg_lock);
1997
1998         pci_disable_device(pci);
1999         pci_save_state(pci);
2000         pci_set_power_state(pci, pci_choose_state(pci, state));
2001         return 0;
2002 }
2003
2004 static int ali_resume(struct pci_dev *pci)
2005 {
2006         struct snd_card *card = pci_get_drvdata(pci);
2007         struct snd_ali *chip = card->private_data;
2008         struct snd_ali_image *im;
2009         int i, j;
2010
2011         im = chip->image;
2012         if (!im)
2013                 return 0;
2014
2015         pci_set_power_state(pci, PCI_D0);
2016         pci_restore_state(pci);
2017         if (pci_enable_device(pci) < 0) {
2018                 printk(KERN_ERR "ali5451: pci_enable_device failed, "
2019                        "disabling device\n");
2020                 snd_card_disconnect(card);
2021                 return -EIO;
2022         }
2023         pci_set_master(pci);
2024
2025         spin_lock_irq(&chip->reg_lock);
2026
2027         for (i = 0; i < ALI_CHANNELS; i++) {
2028                 outb(i, ALI_REG(chip, ALI_GC_CIR));
2029                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2030                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
2031         }
2032
2033         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2034                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
2035                     (i*4 == ALI_START))
2036                         continue;
2037                 outl(im->regs[i], ALI_REG(chip, i*4));
2038         }
2039
2040         /* start HW channel */
2041         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
2042         /* restore IRQ enable bits */
2043         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
2044
2045         spin_unlock_irq(&chip->reg_lock);
2046
2047         for (i = 0 ; i < chip->num_of_codecs; i++)
2048                 snd_ac97_resume(chip->ac97[i]);
2049
2050         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2051         return 0;
2052 }
2053 #endif /* CONFIG_PM */
2054
2055 static int snd_ali_free(struct snd_ali * codec)
2056 {
2057         if (codec->hw_initialized)
2058                 snd_ali_disable_address_interrupt(codec);
2059         if (codec->irq >= 0) {
2060                 synchronize_irq(codec->irq);
2061                 free_irq(codec->irq, codec);
2062         }
2063         if (codec->port)
2064                 pci_release_regions(codec->pci);
2065         pci_disable_device(codec->pci);
2066 #ifdef CONFIG_PM
2067         kfree(codec->image);
2068 #endif
2069         pci_dev_put(codec->pci_m1533);
2070         pci_dev_put(codec->pci_m7101);
2071         kfree(codec);
2072         return 0;
2073 }
2074
2075 static int snd_ali_chip_init(struct snd_ali *codec)
2076 {
2077         unsigned int legacy;
2078         unsigned char temp;
2079         struct pci_dev *pci_dev;
2080
2081         snd_ali_printk("chip initializing ... \n");
2082
2083         if (snd_ali_reset_5451(codec)) {
2084                 snd_printk(KERN_ERR "ali_chip_init: reset 5451 error.\n");
2085                 return -1;
2086         }
2087
2088         if (codec->revision == ALI_5451_V02) {
2089                 pci_dev = codec->pci_m1533;
2090                 pci_read_config_byte(pci_dev, 0x59, &temp);
2091                 temp |= 0x80;
2092                 pci_write_config_byte(pci_dev, 0x59, temp);
2093
2094                 pci_dev = codec->pci_m7101;
2095                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2096                 temp |= 0x20;
2097                 pci_write_config_byte(pci_dev, 0xB8, temp);
2098         }
2099
2100         pci_read_config_dword(codec->pci, 0x44, &legacy);
2101         legacy &= 0xff00ff00;
2102         legacy |= 0x000800aa;
2103         pci_write_config_dword(codec->pci, 0x44, legacy);
2104
2105         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2106         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2107         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2108         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2109         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2110
2111         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2112         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2113                                                     AC97_EXTENDED_STATUS);
2114         if (codec->spdif_support) {
2115                 snd_ali_enable_spdif_out(codec);
2116                 codec->spdif_mask = 0x00000002;
2117         }
2118
2119         codec->num_of_codecs = 1;
2120
2121         /* secondary codec - modem */
2122         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2123                 codec->num_of_codecs++;
2124                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2125                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2126                       ALI_SCTRL_LINE_OUT_EN),
2127                      ALI_REG(codec, ALI_SCTRL));
2128         }
2129
2130         snd_ali_printk("chip initialize succeed.\n");
2131         return 0;
2132
2133 }
2134
2135 /* proc for register dump */
2136 static void snd_ali_proc_read(struct snd_info_entry *entry,
2137                               struct snd_info_buffer *buf)
2138 {
2139         struct snd_ali *codec = entry->private_data;
2140         int i;
2141         for (i = 0; i < 256 ; i+= 4)
2142                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2143 }
2144
2145 static void __devinit snd_ali_proc_init(struct snd_ali *codec)
2146 {
2147         struct snd_info_entry *entry;
2148         if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2149                 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2150 }
2151
2152 static int __devinit snd_ali_resources(struct snd_ali *codec)
2153 {
2154         int err;
2155
2156         snd_ali_printk("resouces allocation ...\n");
2157         err = pci_request_regions(codec->pci, "ALI 5451");
2158         if (err < 0)
2159                 return err;
2160         codec->port = pci_resource_start(codec->pci, 0);
2161
2162         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2163                         IRQF_SHARED, "ALI 5451", codec)) {
2164                 snd_printk(KERN_ERR "Unable to request irq.\n");
2165                 return -EBUSY;
2166         }
2167         codec->irq = codec->pci->irq;
2168         snd_ali_printk("resouces allocated.\n");
2169         return 0;
2170 }
2171 static int snd_ali_dev_free(struct snd_device *device)
2172 {
2173         struct snd_ali *codec = device->device_data;
2174         snd_ali_free(codec);
2175         return 0;
2176 }
2177
2178 static int __devinit snd_ali_create(struct snd_card *card,
2179                                     struct pci_dev *pci,
2180                                     int pcm_streams,
2181                                     int spdif_support,
2182                                     struct snd_ali ** r_ali)
2183 {
2184         struct snd_ali *codec;
2185         int i, err;
2186         unsigned short cmdw;
2187         static struct snd_device_ops ops = {
2188                 .dev_free = snd_ali_dev_free,
2189         };
2190
2191         *r_ali = NULL;
2192
2193         snd_ali_printk("creating ...\n");
2194
2195         /* enable PCI device */
2196         err = pci_enable_device(pci);
2197         if (err < 0)
2198                 return err;
2199         /* check, if we can restrict PCI DMA transfers to 31 bits */
2200         if (pci_set_dma_mask(pci, DMA_31BIT_MASK) < 0 ||
2201             pci_set_consistent_dma_mask(pci, DMA_31BIT_MASK) < 0) {
2202                 snd_printk(KERN_ERR "architecture does not support "
2203                            "31bit PCI busmaster DMA\n");
2204                 pci_disable_device(pci);
2205                 return -ENXIO;
2206         }
2207
2208         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2209         if (!codec) {
2210                 pci_disable_device(pci);
2211                 return -ENOMEM;
2212         }
2213
2214         spin_lock_init(&codec->reg_lock);
2215         spin_lock_init(&codec->voice_alloc);
2216
2217         codec->card = card;
2218         codec->pci = pci;
2219         codec->irq = -1;
2220         codec->revision = pci->revision;
2221         codec->spdif_support = spdif_support;
2222
2223         if (pcm_streams < 1)
2224                 pcm_streams = 1;
2225         if (pcm_streams > 32)
2226                 pcm_streams = 32;
2227
2228         pci_set_master(pci);
2229         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2230         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2231                 cmdw |= PCI_COMMAND_IO;
2232                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2233         }
2234         pci_set_master(pci);
2235
2236         if (snd_ali_resources(codec)) {
2237                 snd_ali_free(codec);
2238                 return -EBUSY;
2239         }
2240
2241         synchronize_irq(pci->irq);
2242
2243         codec->synth.chmap = 0;
2244         codec->synth.chcnt = 0;
2245         codec->spdif_mask = 0;
2246         codec->synth.synthcount = 0;
2247
2248         if (codec->revision == ALI_5451_V02)
2249                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2250         else
2251                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2252         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2253
2254         codec->chregs.regs.start  = ALI_START;
2255         codec->chregs.regs.stop   = ALI_STOP;
2256         codec->chregs.regs.aint   = ALI_AINT;
2257         codec->chregs.regs.ainten = ALI_AINTEN;
2258
2259         codec->chregs.data.start  = 0x00;
2260         codec->chregs.data.stop   = 0x00;
2261         codec->chregs.data.aint   = 0x00;
2262         codec->chregs.data.ainten = 0x00;
2263
2264         /* M1533: southbridge */
2265         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2266         if (!codec->pci_m1533) {
2267                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2268                 snd_ali_free(codec);
2269                 return -ENODEV;
2270         }
2271         /* M7101: power management */
2272         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2273         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2274                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2275                 snd_ali_free(codec);
2276                 return -ENODEV;
2277         }
2278
2279         snd_ali_printk("snd_device_new is called.\n");
2280         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2281         if (err < 0) {
2282                 snd_ali_free(codec);
2283                 return err;
2284         }
2285
2286         snd_card_set_dev(card, &pci->dev);
2287
2288         /* initialise synth voices*/
2289         for (i = 0; i < ALI_CHANNELS; i++)
2290                 codec->synth.voices[i].number = i;
2291
2292         err = snd_ali_chip_init(codec);
2293         if (err < 0) {
2294                 snd_printk(KERN_ERR "ali create: chip init error.\n");
2295                 return err;
2296         }
2297
2298 #ifdef CONFIG_PM
2299         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2300         if (!codec->image)
2301                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2302 #endif
2303
2304         snd_ali_enable_address_interrupt(codec);
2305         codec->hw_initialized = 1;
2306
2307         *r_ali = codec;
2308         snd_ali_printk("created.\n");
2309         return 0;
2310 }
2311
2312 static int __devinit snd_ali_probe(struct pci_dev *pci,
2313                                    const struct pci_device_id *pci_id)
2314 {
2315         struct snd_card *card;
2316         struct snd_ali *codec;
2317         int err;
2318
2319         snd_ali_printk("probe ...\n");
2320
2321         card = snd_card_new(index, id, THIS_MODULE, 0);
2322         if (!card)
2323                 return -ENOMEM;
2324
2325         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2326         if (err < 0)
2327                 goto error;
2328         card->private_data = codec;
2329
2330         snd_ali_printk("mixer building ...\n");
2331         err = snd_ali_mixer(codec);
2332         if (err < 0)
2333                 goto error;
2334
2335         snd_ali_printk("pcm building ...\n");
2336         err = snd_ali_build_pcms(codec);
2337         if (err < 0)
2338                 goto error;
2339
2340         snd_ali_proc_init(codec);
2341
2342         strcpy(card->driver, "ALI5451");
2343         strcpy(card->shortname, "ALI 5451");
2344
2345         sprintf(card->longname, "%s at 0x%lx, irq %i",
2346                 card->shortname, codec->port, codec->irq);
2347
2348         snd_ali_printk("register card.\n");
2349         err = snd_card_register(card);
2350         if (err < 0)
2351                 goto error;
2352
2353         pci_set_drvdata(pci, card);
2354         return 0;
2355
2356  error:
2357         snd_card_free(card);
2358         return err;
2359 }
2360
2361 static void __devexit snd_ali_remove(struct pci_dev *pci)
2362 {
2363         snd_card_free(pci_get_drvdata(pci));
2364         pci_set_drvdata(pci, NULL);
2365 }
2366
2367 static struct pci_driver driver = {
2368         .name = "ALI 5451",
2369         .id_table = snd_ali_ids,
2370         .probe = snd_ali_probe,
2371         .remove = __devexit_p(snd_ali_remove),
2372 #ifdef CONFIG_PM
2373         .suspend = ali_suspend,
2374         .resume = ali_resume,
2375 #endif
2376 };
2377
2378 static int __init alsa_card_ali_init(void)
2379 {
2380         return pci_register_driver(&driver);
2381 }
2382
2383 static void __exit alsa_card_ali_exit(void)
2384 {
2385         pci_unregister_driver(&driver);
2386 }
2387
2388 module_init(alsa_card_ali_init)
2389 module_exit(alsa_card_ali_exit)