git.oblomov.eu Git - linux-2.6/blob - 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 <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_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  49 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  50 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  51 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 32};
  52 static int spdif[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
  53
  54 module_param_array(index, int, NULL, 0444);
  55 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  56 module_param_array(id, charp, NULL, 0444);
  57 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  58 module_param_array(enable, bool, NULL, 0444);
  59 MODULE_PARM_DESC(enable, "Enable ALI 5451 PCI Audio.");
  60 module_param_array(pcm_channels, int, NULL, 0444);
  61 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  62 module_param_array(spdif, bool, NULL, 0444);
  63 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  64
  65 /*
  66  *  Debug part definitions
  67  */
  68
  69 //#define ALI_DEBUG
  70
  71 #ifdef ALI_DEBUG
  72 #define snd_ali_printk(format, args...) printk(format, ##args);
  73 #else
  74 #define snd_ali_printk(format, args...)
  75 #endif
  76
  77 /*
  78  *  Constants definition
  79  */
  80
  81 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  82
  83
  84 #define ALI_CHANNELS            32
  85
  86 #define ALI_PCM_IN_CHANNEL      31
  87 #define ALI_SPDIF_IN_CHANNEL    19
  88 #define ALI_SPDIF_OUT_CHANNEL   15
  89 #define ALI_CENTER_CHANNEL      24
  90 #define ALI_LEF_CHANNEL         23
  91 #define ALI_SURR_LEFT_CHANNEL   26
  92 #define ALI_SURR_RIGHT_CHANNEL  25
  93 #define ALI_MODEM_IN_CHANNEL    21
  94 #define ALI_MODEM_OUT_CHANNEL   20
  95
  96 #define SNDRV_ALI_VOICE_TYPE_PCM        01
  97 #define SNDRV_ALI_VOICE_TYPE_OTH        02
  98
  99 #define ALI_5451_V02            0x02
 100
 101 /*
 102  *  Direct Registers
 103  */
 104
 105 #define ALI_LEGACY_DMAR0        0x00  // ADR0
 106 #define ALI_LEGACY_DMAR4        0x04  // CNT0
 107 #define ALI_LEGACY_DMAR11       0x0b  // MOD
 108 #define ALI_LEGACY_DMAR15       0x0f  // MMR
 109 #define ALI_MPUR0               0x20
 110 #define ALI_MPUR1               0x21
 111 #define ALI_MPUR2               0x22
 112 #define ALI_MPUR3               0x23
 113
 114 #define ALI_AC97_WRITE          0x40
 115 #define ALI_AC97_READ           0x44
 116
 117 #define ALI_SCTRL               0x48
 118 #define   ALI_SPDIF_OUT_ENABLE          0x20
 119 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
 120 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
 121 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
 122 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
 123 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
 124 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 125 #define ALI_AC97_GPIO           0x4c
 126 #define   ALI_AC97_GPIO_ENABLE          0x8000
 127 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 128 #define ALI_SPDIF_CS            0x70
 129 #define ALI_SPDIF_CTRL          0x74
 130 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 131 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 132 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 133 #define ALI_START               0x80
 134 #define ALI_STOP                0x84
 135 #define ALI_CSPF                0x90
 136 #define ALI_AINT                0x98
 137 #define ALI_GC_CIR              0xa0
 138         #define ENDLP_IE                0x00001000
 139         #define MIDLP_IE                0x00002000
 140 #define ALI_AINTEN              0xa4
 141 #define ALI_VOLUME              0xa8
 142 #define ALI_SBDELTA_DELTA_R     0xac
 143 #define ALI_MISCINT             0xb0
 144         #define ADDRESS_IRQ             0x00000020
 145         #define TARGET_REACHED          0x00008000
 146         #define MIXER_OVERFLOW          0x00000800
 147         #define MIXER_UNDERFLOW         0x00000400
 148         #define GPIO_IRQ                0x01000000
 149 #define ALI_SBBL_SBCL           0xc0
 150 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 151 #define ALI_STIMER              0xc8
 152 #define ALI_GLOBAL_CONTROL      0xd4
 153 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 154 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 155 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 156 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 157 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 158
 159 #define ALI_CSO_ALPHA_FMS       0xe0
 160 #define ALI_LBA                 0xe4
 161 #define ALI_ESO_DELTA           0xe8
 162 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 163 #define ALI_EBUF1               0xf4
 164 #define ALI_EBUF2               0xf8
 165
 166 #define ALI_REG(codec, x) ((codec)->port + x)
 167
 168 #define MAX_CODECS 2
 169
 170
 171 typedef struct snd_stru_ali ali_t;
 172 typedef struct snd_ali_stru_voice snd_ali_voice_t;
 173
 174 typedef struct snd_ali_channel_control {
 175         // register data
 176         struct REGDATA {
 177                 unsigned int start;
 178                 unsigned int stop;
 179                 unsigned int aint;
 180                 unsigned int ainten;
 181         } data;
 182
 183         // register addresses
 184         struct REGS {
 185                 unsigned int start;
 186                 unsigned int stop;
 187                 unsigned int aint;
 188                 unsigned int ainten;
 189                 unsigned int ac97read;
 190                 unsigned int ac97write;
 191         } regs;
 192
 193 } snd_ali_channel_control_t;
 194
 195 struct snd_ali_stru_voice {
 196         unsigned int number;
 197         unsigned int use: 1,
 198             pcm: 1,
 199             midi: 1,
 200             mode: 1,
 201             synth: 1;
 202
 203         /* PCM data */
 204         ali_t *codec;
 205         snd_pcm_substream_t *substream;
 206         snd_ali_voice_t *extra;
 207
 208         unsigned int running: 1;
 209
 210         int eso;                /* final ESO value for channel */
 211         int count;              /* runtime->period_size */
 212
 213         /* --- */
 214
 215         void *private_data;
 216         void (*private_free)(void *private_data);
 217 };
 218
 219
 220 typedef struct snd_stru_alidev {
 221
 222         snd_ali_voice_t voices[ALI_CHANNELS];
 223
 224         unsigned int    chcnt;                  /* num of opened channels */
 225         unsigned int    chmap;                  /* bitmap for opened channels */
 226         unsigned int synthcount;
 227
 228 } alidev_t;
 229
 230
 231 #ifdef CONFIG_PM
 232 #define ALI_GLOBAL_REGS         56
 233 #define ALI_CHANNEL_REGS        8
 234 typedef struct snd_ali_image {
 235         unsigned long regs[ALI_GLOBAL_REGS];
 236         unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 237 } ali_image_t;
 238 #endif
 239
 240
 241 struct snd_stru_ali {
 242         unsigned long   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         snd_card_t      *card;
 254         snd_pcm_t       *pcm[MAX_CODECS];
 255         alidev_t        synth;
 256         snd_ali_channel_control_t 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         ac97_bus_t *ac97_bus;
 267         ac97_t *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         ali_image_t *image;
 276 #endif
 277 };
 278
 279 static struct pci_device_id snd_ali_ids[] = {
 280         {0x10b9, 0x5451, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
 281         {0, }
 282 };
 283 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 284
 285 static void snd_ali_clear_voices(ali_t *, unsigned int, unsigned int);
 286 static unsigned short snd_ali_codec_peek(ali_t *, int, unsigned short);
 287 static void snd_ali_codec_poke(ali_t *, int, unsigned short, unsigned short);
 288
 289 /*
 290  *  Debug Part
 291  */
 292
 293 #ifdef ALI_DEBUG
 294
 295 static void ali_read_regs(ali_t *codec, int channel)
 296 {
 297         int i,j;
 298         unsigned int dwVal;
 299
 300         printk("channel %d registers map:\n", channel);
 301         outb((unsigned char)(channel & 0x001f), ALI_REG(codec,ALI_GC_CIR));
 302
 303         printk("    ");
 304         for(j=0;j<8;j++)
 305                 printk("%2.2x       ", j*4);
 306         printk("\n");
 307
 308         for (i=0; i<=0xf8/4;i++) {
 309                 if(i%8 == 0)
 310                         printk("%2.2x  ", (i*4/0x10)*0x10);
 311                 dwVal = inl(ALI_REG(codec,i*4));
 312                 printk("%8.8x ", dwVal);
 313                 if ((i+1)%8 == 0)
 314                         printk("\n");
 315         }
 316         printk("\n");
 317 }
 318 static void ali_read_cfg(unsigned int vendor, unsigned deviceid)
 319 {
 320         unsigned int dwVal;
 321         struct pci_dev *pci_dev;
 322         int i,j;
 323
 324         pci_dev = pci_get_device(vendor, deviceid, NULL);
 325         if (pci_dev == NULL)
 326                 return ;
 327
 328         printk("\nM%x PCI CFG\n", deviceid);
 329         printk("    ");
 330         for(j=0;j<8;j++)
 331                 printk("%d        ",j);
 332         printk("\n");
 333
 334         for(i=0;i<8;i++) {
 335                 printk("%d   ",i);
 336                 for(j=0;j<8;j++)
 337                 {
 338                         pci_read_config_dword(pci_dev, i*0x20+j*4, &dwVal);
 339                         printk("%8.8x ", dwVal);
 340                 }
 341                 printk("\n");
 342         }
 343         pci_dev_put(pci_dev);
 344  }
 345 static void ali_read_ac97regs(ali_t *codec, int secondary)
 346 {
 347         unsigned short i,j;
 348         unsigned short wVal;
 349
 350         printk("\ncodec %d registers map:\n", secondary);
 351
 352         printk("    ");
 353         for(j=0;j<8;j++)
 354                 printk("%2.2x   ",j*2);
 355         printk("\n");
 356
 357         for (i=0; i<64;i++) {
 358                 if(i%8 == 0)
 359                         printk("%2.2x  ", (i/8)*0x10);
 360                 wVal = snd_ali_codec_peek(codec, secondary, i*2);
 361                 printk("%4.4x ", wVal);
 362                 if ((i+1)%8 == 0)
 363                         printk("\n");
 364         }
 365         printk("\n");
 366 }
 367
 368 #endif
 369
 370 /*
 371  *  AC97 ACCESS
 372  */
 373
 374 static inline unsigned int snd_ali_5451_peek(ali_t *codec,
 375                                                 unsigned int port )
 376 {
 377         return (unsigned int)inl(ALI_REG(codec, port));
 378 }
 379
 380 static inline void snd_ali_5451_poke(   ali_t *codec,
 381                                         unsigned int port,
 382                                         unsigned int val )
 383 {
 384         outl((unsigned int)val, ALI_REG(codec, port));
 385 }
 386
 387 static int snd_ali_codec_ready( ali_t *codec,
 388                                 unsigned int port,
 389                                 int sched )
 390 {
 391         unsigned long end_time;
 392         unsigned int res;
 393
 394         end_time = jiffies + 10 * msecs_to_jiffies(250);
 395         do {
 396                 res = snd_ali_5451_peek(codec,port);
 397                 if (! (res & 0x8000))
 398                         return 0;
 399                 if (sched) {
 400                         set_current_state(TASK_UNINTERRUPTIBLE);
 401                         schedule_timeout(1);
 402                 }
 403         } while (time_after_eq(end_time, jiffies));
 404         snd_ali_5451_poke(codec, port, res & ~0x8000);
 405         snd_printdd("ali_codec_ready: codec is not ready.\n ");
 406         return -EIO;
 407 }
 408
 409 static int snd_ali_stimer_ready(ali_t *codec, int sched)
 410 {
 411         unsigned long end_time;
 412         unsigned long dwChk1,dwChk2;
 413
 414         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 415         dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 416
 417         end_time = jiffies + 10 * msecs_to_jiffies(250);
 418         do {
 419                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 420                 if (dwChk2 != dwChk1)
 421                         return 0;
 422                 if (sched) {
 423                         set_current_state(TASK_UNINTERRUPTIBLE);
 424                         schedule_timeout(1);
 425                 }
 426         } while (time_after_eq(end_time, jiffies));
 427         snd_printk("ali_stimer_read: stimer is not ready.\n");
 428         return -EIO;
 429 }
 430
 431 static void snd_ali_codec_poke(ali_t *codec,int secondary,
 432                                      unsigned short reg,
 433                                      unsigned short val)
 434 {
 435         unsigned int dwVal = 0;
 436         unsigned int port = 0;
 437
 438         if (reg >= 0x80) {
 439                 snd_printk("ali_codec_poke: reg(%xh) invalid.\n", reg);
 440                 return;
 441         }
 442
 443         port = codec->chregs.regs.ac97write;
 444
 445         if (snd_ali_codec_ready(codec, port, 0) < 0)
 446                 return;
 447         if (snd_ali_stimer_ready(codec, 0) < 0)
 448                 return;
 449
 450         dwVal  = (unsigned int) (reg & 0xff);
 451         dwVal |= 0x8000 | (val << 16);
 452         if (secondary) dwVal |= 0x0080;
 453         if (codec->revision == ALI_5451_V02) dwVal |= 0x0100;
 454
 455         snd_ali_5451_poke(codec,port,dwVal);
 456
 457         return ;
 458 }
 459
 460 static unsigned short snd_ali_codec_peek( ali_t *codec,
 461                                           int secondary,
 462                                           unsigned short reg)
 463 {
 464         unsigned int dwVal = 0;
 465         unsigned int port = 0;
 466
 467         if (reg >= 0x80) {
 468                 snd_printk("ali_codec_peek: reg(%xh) invalid.\n", reg);
 469                 return ~0;
 470         }
 471
 472         port = codec->chregs.regs.ac97read;
 473
 474         if (snd_ali_codec_ready(codec, port, 0) < 0)
 475                 return ~0;
 476         if (snd_ali_stimer_ready(codec, 0) < 0)
 477                 return ~0;
 478
 479         dwVal  = (unsigned int) (reg & 0xff);
 480         dwVal |= 0x8000;                                /* bit 15*/
 481         if (secondary) dwVal |= 0x0080;
 482
 483         snd_ali_5451_poke(codec, port, dwVal);
 484
 485         if (snd_ali_stimer_ready(codec, 0) < 0)
 486                 return ~0;
 487         if (snd_ali_codec_ready(codec, port, 0) < 0)
 488                 return ~0;
 489
 490         return (snd_ali_5451_peek(codec, port) & 0xffff0000)>>16;
 491 }
 492
 493 static void snd_ali_codec_write(ac97_t *ac97,
 494                                 unsigned short reg,
 495                                 unsigned short val )
 496 {
 497         ali_t *codec = ac97->private_data;
 498
 499         snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
 500         if(reg == AC97_GPIO_STATUS) {
 501                 outl((val << ALI_AC97_GPIO_DATA_SHIFT)|ALI_AC97_GPIO_ENABLE,
 502                         ALI_REG(codec, ALI_AC97_GPIO));
 503                 return;
 504         }
 505         snd_ali_codec_poke(codec, ac97->num, reg, val);
 506         return ;
 507 }
 508
 509
 510 static unsigned short snd_ali_codec_read(ac97_t *ac97, unsigned short reg)
 511 {
 512         ali_t *codec = ac97->private_data;
 513
 514         snd_ali_printk("codec_read reg=%xh.\n", reg);
 515         return (snd_ali_codec_peek(codec, ac97->num, reg));
 516 }
 517
 518 /*
 519  *      AC97 Reset
 520  */
 521
 522 static int snd_ali_reset_5451(ali_t *codec)
 523 {
 524         struct pci_dev *pci_dev = NULL;
 525         unsigned short wCount, wReg;
 526         unsigned int   dwVal;
 527
 528         if ((pci_dev = codec->pci_m1533) != NULL) {
 529                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 530                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 531                 udelay(5000);
 532                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 533                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 534                 udelay(5000);
 535         }
 536
 537         pci_dev = codec->pci;
 538         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 539         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 540         udelay(500);
 541         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 542         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 543         udelay(5000);
 544
 545         wCount = 200;
 546         while(wCount--) {
 547                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 548                 if((wReg & 0x000f) == 0x000f)
 549                         return 0;
 550                 udelay(5000);
 551         }
 552
 553         /* non-fatal if you have a non PM capable codec */
 554         /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
 555         return 0;
 556 }
 557
 558 #ifdef CODEC_RESET
 559
 560 static int snd_ali_reset_codec(ali_t *codec)
 561 {
 562         struct pci_dev *pci_dev = NULL;
 563         unsigned char bVal = 0;
 564         unsigned int   dwVal;
 565         unsigned short wCount, wReg;
 566
 567         pci_dev = codec->pci_m1533;
 568
 569         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 570         pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 571         udelay(5000);
 572         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 573         pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 574         udelay(5000);
 575
 576         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 577         bVal |= 0x02;
 578         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 579         udelay(5000);
 580         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 581         bVal &= 0xfd;
 582         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 583         udelay(15000);
 584
 585         wCount = 200;
 586         while(wCount--) {
 587                 wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
 588                 if((wReg & 0x000f) == 0x000f)
 589                         return 0;
 590                 udelay(5000);
 591         }
 592         return -1;
 593 }
 594
 595 #endif
 596
 597 /*
 598  *  ALI 5451 Controller
 599  */
 600
 601 static void snd_ali_enable_special_channel(ali_t *codec, unsigned int channel)
 602 {
 603         unsigned long dwVal = 0;
 604
 605         dwVal  = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
 606         dwVal |= 1 << (channel & 0x0000001f);
 607         outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
 608 }
 609
 610 static void snd_ali_disable_special_channel(ali_t *codec, unsigned int channel)
 611 {
 612         unsigned long dwVal = 0;
 613
 614         dwVal  = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
 615         dwVal &= ~(1 << (channel & 0x0000001f));
 616         outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
 617 }
 618
 619 static void snd_ali_enable_address_interrupt(ali_t * codec)
 620 {
 621         unsigned int gc;
 622
 623         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 624         gc |= ENDLP_IE;
 625         gc |= MIDLP_IE;
 626         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 627 }
 628
 629 static void snd_ali_disable_address_interrupt(ali_t * codec)
 630 {
 631         unsigned int gc;
 632
 633         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 634         gc &= ~ENDLP_IE;
 635         gc &= ~MIDLP_IE;
 636         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 637 }
 638
 639 #if 0 // not used
 640 static void snd_ali_enable_voice_irq(ali_t *codec, unsigned int channel)
 641 {
 642         unsigned int mask;
 643         snd_ali_channel_control_t *pchregs = &(codec->chregs);
 644
 645         snd_ali_printk("enable_voice_irq channel=%d\n",channel);
 646
 647         mask = 1 << (channel & 0x1f);
 648         pchregs->data.ainten  = inl(ALI_REG(codec,pchregs->regs.ainten));
 649         pchregs->data.ainten |= mask;
 650         outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
 651 }
 652 #endif
 653
 654 static void snd_ali_disable_voice_irq(ali_t *codec, unsigned int channel)
 655 {
 656         unsigned int mask;
 657         snd_ali_channel_control_t *pchregs = &(codec->chregs);
 658
 659         snd_ali_printk("disable_voice_irq channel=%d\n",channel);
 660
 661         mask = 1 << (channel & 0x1f);
 662         pchregs->data.ainten  = inl(ALI_REG(codec,pchregs->regs.ainten));
 663         pchregs->data.ainten &= ~mask;
 664         outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
 665 }
 666
 667 static int snd_ali_alloc_pcm_channel(ali_t *codec, int channel)
 668 {
 669         unsigned int idx =  channel & 0x1f;
 670
 671         if (codec->synth.chcnt >= ALI_CHANNELS){
 672                 snd_printk("ali_alloc_pcm_channel: no free channels.\n");
 673                 return -1;
 674         }
 675
 676         if (!(codec->synth.chmap & (1 << idx))) {
 677                 codec->synth.chmap |= 1 << idx;
 678                 codec->synth.chcnt++;
 679                 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
 680                 return idx;
 681         }
 682         return -1;
 683 }
 684
 685 static int snd_ali_find_free_channel(ali_t * codec, int rec)
 686 {
 687         int idx;
 688         int result = -1;
 689
 690         snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
 691
 692         // recording
 693         if (rec) {
 694                 if (codec->spdif_support &&
 695                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT))
 696                         idx = ALI_SPDIF_IN_CHANNEL;
 697                 else
 698                         idx = ALI_PCM_IN_CHANNEL;
 699
 700                 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
 701                         return result;
 702                 } else {
 703                         snd_printk("ali_find_free_channel: record channel is busy now.\n");
 704                         return -1;
 705                 }
 706         }
 707
 708         //playback...
 709         if (codec->spdif_support &&
 710             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)) {
 711                 idx = ALI_SPDIF_OUT_CHANNEL;
 712                 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
 713                         return result;
 714                 } else {
 715                         snd_printk("ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 716                 }
 717         }
 718
 719         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 720                 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0)
 721                         return result;
 722         }
 723         snd_printk("ali_find_free_channel: no free channels.\n");
 724         return -1;
 725 }
 726
 727 static void snd_ali_free_channel_pcm(ali_t *codec, int channel)
 728 {
 729         unsigned int idx = channel & 0x0000001f;
 730
 731         snd_ali_printk("free_channel_pcm channel=%d\n",channel);
 732
 733         if (channel < 0 || channel >= ALI_CHANNELS)
 734                 return;
 735
 736         if (!(codec->synth.chmap & (1 << idx))) {
 737                 snd_printk("ali_free_channel_pcm: channel %d is not in use.\n",channel);
 738                 return;
 739         } else {
 740                 codec->synth.chmap &= ~(1 << idx);
 741                 codec->synth.chcnt--;
 742         }
 743 }
 744
 745 #if 0 // not used
 746 static void snd_ali_start_voice(ali_t * codec, unsigned int channel)
 747 {
 748         unsigned int mask = 1 << (channel & 0x1f);
 749
 750         snd_ali_printk("start_voice: channel=%d\n",channel);
 751         outl(mask, ALI_REG(codec,codec->chregs.regs.start));
 752 }
 753 #endif
 754
 755 static void snd_ali_stop_voice(ali_t * codec, unsigned int channel)
 756 {
 757         unsigned int mask = 1 << (channel & 0x1f);
 758
 759         snd_ali_printk("stop_voice: channel=%d\n",channel);
 760         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 761 }
 762
 763 /*
 764  *    S/PDIF Part
 765  */
 766
 767 static void snd_ali_delay(ali_t *codec,int interval)
 768 {
 769         unsigned long  begintimer,currenttimer;
 770
 771         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 772         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 773
 774         while (currenttimer < begintimer + interval) {
 775                 if(snd_ali_stimer_ready(codec, 1) < 0)
 776                         break;
 777                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 778         }
 779 }
 780
 781 static void snd_ali_detect_spdif_rate(ali_t *codec)
 782 {
 783         u16 wval  = 0;
 784         u16 count = 0;
 785         u8  bval = 0, R1 = 0, R2 = 0;
 786
 787         bval  = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 788         bval |= 0x1F;
 789         outb(bval,ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 790
 791         while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) {
 792                 count ++;
 793                 snd_ali_delay(codec, 6);
 794                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 795                 R1 = bval & 0x1F;
 796         }
 797
 798         if (count > 50000) {
 799                 snd_printk("ali_detect_spdif_rate: timeout!\n");
 800                 return;
 801         }
 802
 803         count = 0;
 804         while (count++ <= 50000) {
 805                 snd_ali_delay(codec, 6);
 806                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 807                 R2 = bval & 0x1F;
 808                 if (R2 != R1) R1 = R2; else break;
 809         }
 810
 811         if (count > 50000) {
 812                 snd_printk("ali_detect_spdif_rate: timeout!\n");
 813                 return;
 814         }
 815
 816         if (R2 >= 0x0b && R2 <= 0x0e) {
 817                 wval  = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 818                 wval &= 0xE0F0;
 819                 wval |= (u16)0x09 << 8 | (u16)0x05;
 820                 outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 821
 822                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
 823                 outb(bval|0x02,ALI_REG(codec,ALI_SPDIF_CS + 3));
 824         } else if (R2 == 0x12) {
 825                 wval  = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 826                 wval &= 0xE0F0;
 827                 wval |= (u16)0x0E << 8 | (u16)0x08;
 828                 outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 829
 830                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
 831                 outb(bval|0x03,ALI_REG(codec,ALI_SPDIF_CS + 3));
 832         }
 833 }
 834
 835 static unsigned int snd_ali_get_spdif_in_rate(ali_t *codec)
 836 {
 837         u32     dwRate = 0;
 838         u8      bval = 0;
 839
 840         bval  = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
 841         bval &= 0x7F;
 842         bval |= 0x40;
 843         outb(bval, ALI_REG(codec,ALI_SPDIF_CTRL));
 844
 845         snd_ali_detect_spdif_rate(codec);
 846
 847         bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3));
 848         bval &= 0x0F;
 849
 850         if (bval == 0) dwRate = 44100;
 851         if (bval == 1) dwRate = 48000;
 852         if (bval == 2) dwRate = 32000;
 853
 854         return dwRate;
 855 }
 856
 857 static void snd_ali_enable_spdif_in(ali_t *codec)
 858 {
 859         unsigned int dwVal;
 860
 861         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 862         dwVal |= ALI_SPDIF_IN_SUPPORT;
 863         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 864
 865         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 866         dwVal |= 0x02;
 867         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 868
 869         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 870 }
 871
 872 static void snd_ali_disable_spdif_in(ali_t *codec)
 873 {
 874         unsigned int dwVal;
 875
 876         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 877         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 878         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 879
 880         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 881 }
 882
 883
 884 static void snd_ali_set_spdif_out_rate(ali_t *codec, unsigned int rate)
 885 {
 886         unsigned char  bVal;
 887         unsigned int  dwRate = 0;
 888
 889         if (rate == 32000) dwRate = 0x300;
 890         if (rate == 44100) dwRate = 0;
 891         if (rate == 48000) dwRate = 0x200;
 892
 893         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 894         bVal &= (unsigned char)(~(1<<6));
 895
 896         bVal |= 0x80;           //select right
 897         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 898         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 899
 900         bVal &= (~0x80);        //select left
 901         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 902         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 903 }
 904
 905 static void snd_ali_enable_spdif_out(ali_t *codec)
 906 {
 907         unsigned short wVal;
 908         unsigned char bVal;
 909
 910         struct pci_dev *pci_dev = NULL;
 911
 912         pci_dev = codec->pci_m1533;
 913         if (pci_dev == NULL)
 914                 return;
 915         pci_read_config_byte(pci_dev, 0x61, &bVal);
 916         bVal |= 0x40;
 917         pci_write_config_byte(pci_dev, 0x61, bVal);
 918         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 919         bVal |= 0x01;
 920         pci_write_config_byte(pci_dev, 0x7d, bVal);
 921
 922         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 923         bVal &= (~0x20);
 924         bVal |= 0x10;
 925         pci_write_config_byte(pci_dev, 0x7e, bVal);
 926
 927         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 928         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 929
 930         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 931         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 932
 933         {
 934                 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 935                 wVal |= ALI_SPDIF_OUT_SEL_PCM;
 936                 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 937                 snd_ali_disable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
 938         }
 939 }
 940
 941 static void snd_ali_enable_spdif_chnout(ali_t *codec)
 942 {
 943         unsigned short wVal = 0;
 944
 945         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 946         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 947         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 948 /*
 949         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 950         if (flag & ALI_SPDIF_OUT_NON_PCM)
 951                 wVal |= 0x0002;
 952         else
 953                 wVal &= (~0x0002);
 954         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 955 */
 956         snd_ali_enable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
 957 }
 958
 959 static void snd_ali_disable_spdif_chnout(ali_t *codec)
 960 {
 961         unsigned short wVal = 0;
 962         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 963         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 964         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 965
 966         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 967 }
 968
 969 static void snd_ali_disable_spdif_out(ali_t *codec)
 970 {
 971         unsigned char  bVal;
 972
 973         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 974         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 975
 976         snd_ali_disable_spdif_chnout(codec);
 977 }
 978
 979 static void snd_ali_update_ptr(ali_t *codec,int channel)
 980 {
 981         snd_ali_voice_t *pvoice = NULL;
 982         snd_pcm_runtime_t *runtime;
 983         snd_ali_channel_control_t *pchregs = NULL;
 984         unsigned int old, mask;
 985 #ifdef ALI_DEBUG
 986         unsigned int temp, cspf;
 987 #endif
 988
 989         pchregs = &(codec->chregs);
 990
 991         // check if interrupt occurred for channel
 992         old  = pchregs->data.aint;
 993         mask = ((unsigned int) 1L) << (channel & 0x1f);
 994
 995         if (!(old & mask))
 996                 return;
 997
 998         pvoice = &codec->synth.voices[channel];
 999         runtime = pvoice->substream->runtime;
1000
1001         udelay(100);
1002         spin_lock(&codec->reg_lock);
1003
1004         if (pvoice->pcm && pvoice->substream) {
1005                 /* pcm interrupt */
1006 #ifdef ALI_DEBUG
1007                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
1008                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1009                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
1010 #endif
1011                 if (pvoice->running) {
1012                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",(u16)temp,cspf);
1013                         spin_unlock(&codec->reg_lock);
1014                         snd_pcm_period_elapsed(pvoice->substream);
1015                         spin_lock(&codec->reg_lock);
1016                 } else {
1017                         snd_ali_stop_voice(codec, channel);
1018                         snd_ali_disable_voice_irq(codec, channel);
1019                 }
1020         } else if (codec->synth.voices[channel].synth) {
1021                 /* synth interrupt */
1022         } else if (codec->synth.voices[channel].midi) {
1023                 /* midi interrupt */
1024         } else {
1025                 /* unknown interrupt */
1026                 snd_ali_stop_voice(codec, channel);
1027                 snd_ali_disable_voice_irq(codec, channel);
1028         }
1029         spin_unlock(&codec->reg_lock);
1030         outl(mask,ALI_REG(codec,pchregs->regs.aint));
1031         pchregs->data.aint = old & (~mask);
1032 }
1033
1034 static void snd_ali_interrupt(ali_t * codec)
1035 {
1036         int channel;
1037         unsigned int audio_int;
1038         snd_ali_channel_control_t *pchregs = NULL;
1039         pchregs = &(codec->chregs);
1040
1041         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
1042         if (audio_int & ADDRESS_IRQ) {
1043                 // get interrupt status for all channels
1044                 pchregs->data.aint = inl(ALI_REG(codec,pchregs->regs.aint));
1045                 for (channel = 0; channel < ALI_CHANNELS; channel++) {
1046                         snd_ali_update_ptr(codec, channel);
1047                 }
1048         }
1049         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1050                 ALI_REG(codec,ALI_MISCINT));
1051 }
1052
1053
1054 static irqreturn_t snd_ali_card_interrupt(int irq,
1055                                    void *dev_id,
1056                                    struct pt_regs *regs)
1057 {
1058         ali_t   *codec = dev_id;
1059
1060         if (codec == NULL)
1061                 return IRQ_NONE;
1062         snd_ali_interrupt(codec);
1063         return IRQ_HANDLED;
1064 }
1065
1066
1067 static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec, int channel)
1068 {
1069         snd_ali_voice_t *pvoice = NULL;
1070         unsigned long flags;
1071         int idx;
1072
1073         snd_ali_printk("alloc_voice: type=%d rec=%d\n",type,rec);
1074
1075         spin_lock_irqsave(&codec->voice_alloc, flags);
1076         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
1077                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
1078                         snd_ali_find_free_channel(codec,rec);
1079                 if(idx < 0) {
1080                         snd_printk("ali_alloc_voice: err.\n");
1081                         spin_unlock_irqrestore(&codec->voice_alloc, flags);
1082                         return NULL;
1083                 }
1084                 pvoice = &(codec->synth.voices[idx]);
1085                 pvoice->use = 1;
1086                 pvoice->pcm = 1;
1087                 pvoice->mode = rec;
1088                 spin_unlock_irqrestore(&codec->voice_alloc, flags);
1089                 return pvoice;
1090         }
1091         spin_unlock_irqrestore(&codec->voice_alloc, flags);
1092         return NULL;
1093 }
1094
1095
1096 static void snd_ali_free_voice(ali_t * codec, snd_ali_voice_t *pvoice)
1097 {
1098         unsigned long flags;
1099         void (*private_free)(void *);
1100         void *private_data;
1101
1102         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
1103         if (pvoice == NULL || !pvoice->use)
1104                 return;
1105         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
1106         spin_lock_irqsave(&codec->voice_alloc, flags);
1107         private_free = pvoice->private_free;
1108         private_data = pvoice->private_data;
1109         pvoice->private_free = NULL;
1110         pvoice->private_data = NULL;
1111         if (pvoice->pcm) {
1112                 snd_ali_free_channel_pcm(codec, pvoice->number);
1113         }
1114         pvoice->use = pvoice->pcm = pvoice->synth = 0;
1115         pvoice->substream = NULL;
1116         spin_unlock_irqrestore(&codec->voice_alloc, flags);
1117         if (private_free)
1118                 private_free(private_data);
1119 }
1120
1121
1122 static void snd_ali_clear_voices(ali_t * codec,
1123                           unsigned int v_min,
1124                           unsigned int v_max)
1125 {
1126         unsigned int i;
1127
1128         for (i = v_min; i <= v_max; i++) {
1129                 snd_ali_stop_voice(codec, i);
1130                 snd_ali_disable_voice_irq(codec, i);
1131         }
1132 }
1133
1134 static void snd_ali_write_voice_regs(ali_t * codec,
1135                          unsigned int Channel,
1136                          unsigned int LBA,
1137                          unsigned int CSO,
1138                          unsigned int ESO,
1139                          unsigned int DELTA,
1140                          unsigned int ALPHA_FMS,
1141                          unsigned int GVSEL,
1142                          unsigned int PAN,
1143                          unsigned int VOL,
1144                          unsigned int CTRL,
1145                          unsigned int EC)
1146 {
1147         unsigned int ctlcmds[4];
1148
1149         outb((unsigned char)(Channel & 0x001f),ALI_REG(codec,ALI_GC_CIR));
1150
1151         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1152         ctlcmds[1] =  LBA;
1153         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1154         ctlcmds[3] =  (GVSEL << 31) |
1155                       ((PAN & 0x0000007f) << 24) |
1156                       ((VOL & 0x000000ff) << 16) |
1157                       ((CTRL & 0x0000000f) << 12) |
1158                       (EC & 0x00000fff);
1159
1160         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1161
1162         outl(ctlcmds[0], ALI_REG(codec,ALI_CSO_ALPHA_FMS));
1163         outl(ctlcmds[1], ALI_REG(codec,ALI_LBA));
1164         outl(ctlcmds[2], ALI_REG(codec,ALI_ESO_DELTA));
1165         outl(ctlcmds[3], ALI_REG(codec,ALI_GVSEL_PAN_VOC_CTRL_EC));
1166
1167         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1168         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1169 }
1170
1171 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1172 {
1173         unsigned int delta;
1174
1175         if (rate < 4000)  rate = 4000;
1176         if (rate > 48000) rate = 48000;
1177
1178         if (rec) {
1179                 if (rate == 44100)
1180                         delta = 0x116a;
1181                 else if (rate == 8000)
1182                         delta = 0x6000;
1183                 else if (rate == 48000)
1184                         delta = 0x1000;
1185                 else
1186                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1187         } else {
1188                 if (rate == 44100)
1189                         delta = 0xeb3;
1190                 else if (rate == 8000)
1191                         delta = 0x2ab;
1192                 else if (rate == 48000)
1193                         delta = 0x1000;
1194                 else
1195                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1196         }
1197
1198         return delta;
1199 }
1200
1201 static unsigned int snd_ali_control_mode(snd_pcm_substream_t *substream)
1202 {
1203         unsigned int CTRL;
1204         snd_pcm_runtime_t *runtime = substream->runtime;
1205
1206         /* set ctrl mode
1207            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1208          */
1209         CTRL = 0x00000001;
1210         if (snd_pcm_format_width(runtime->format) == 16)
1211                 CTRL |= 0x00000008;     // 16-bit data
1212         if (!snd_pcm_format_unsigned(runtime->format))
1213                 CTRL |= 0x00000002;     // signed data
1214         if (runtime->channels > 1)
1215                 CTRL |= 0x00000004;     // stereo data
1216         return CTRL;
1217 }
1218
1219 /*
1220  *  PCM part
1221  */
1222
1223 static int snd_ali_ioctl(snd_pcm_substream_t * substream,
1224                                   unsigned int cmd, void *arg)
1225 {
1226         return snd_pcm_lib_ioctl(substream, cmd, arg);
1227 }
1228
1229 static int snd_ali_trigger(snd_pcm_substream_t *substream,
1230                                int cmd)
1231
1232 {
1233         ali_t *codec = snd_pcm_substream_chip(substream);
1234         struct list_head *pos;
1235         snd_pcm_substream_t *s;
1236         unsigned int what, whati, capture_flag;
1237         snd_ali_voice_t *pvoice = NULL, *evoice = NULL;
1238         unsigned int val;
1239         int do_start;
1240
1241         switch (cmd) {
1242         case SNDRV_PCM_TRIGGER_START:
1243         case SNDRV_PCM_TRIGGER_RESUME:
1244                 do_start = 1; break;
1245         case SNDRV_PCM_TRIGGER_STOP:
1246         case SNDRV_PCM_TRIGGER_SUSPEND:
1247                 do_start = 0; break;
1248         default:
1249                 return -EINVAL;
1250         }
1251
1252         what = whati = capture_flag = 0;
1253         snd_pcm_group_for_each(pos, substream) {
1254                 s = snd_pcm_group_substream_entry(pos);
1255                 if ((ali_t *) snd_pcm_substream_chip(s) == codec) {
1256                         pvoice = (snd_ali_voice_t *) s->runtime->private_data;
1257                         evoice = pvoice->extra;
1258                         what |= 1 << (pvoice->number & 0x1f);
1259                         if (evoice == NULL) {
1260                                 whati |= 1 << (pvoice->number & 0x1f);
1261                         } else {
1262                                 whati |= 1 << (evoice->number & 0x1f);
1263                                 what |= 1 << (evoice->number & 0x1f);
1264                         }
1265                         if (do_start) {
1266                                 pvoice->running = 1;
1267                                 if (evoice != NULL)
1268                                         evoice->running = 1;
1269                         } else {
1270                                 pvoice->running = 0;
1271                                 if (evoice != NULL)
1272                                         evoice->running = 0;
1273                         }
1274                         snd_pcm_trigger_done(s, substream);
1275                         if (pvoice->mode)
1276                                 capture_flag = 1;
1277                 }
1278         }
1279         spin_lock(&codec->reg_lock);
1280         if (! do_start) {
1281                 outl(what, ALI_REG(codec, ALI_STOP));
1282         }
1283         val = inl(ALI_REG(codec, ALI_AINTEN));
1284         if (do_start) {
1285                 val |= whati;
1286         } else {
1287                 val &= ~whati;
1288         }
1289         outl(val, ALI_REG(codec, ALI_AINTEN));
1290         if (do_start) {
1291                 outl(what, ALI_REG(codec, ALI_START));
1292         }
1293         snd_ali_printk("trigger: what=%xh whati=%xh\n",what,whati);
1294         spin_unlock(&codec->reg_lock);
1295
1296         return 0;
1297 }
1298
1299 static int snd_ali_playback_hw_params(snd_pcm_substream_t * substream,
1300                                  snd_pcm_hw_params_t * hw_params)
1301 {
1302         ali_t *codec = snd_pcm_substream_chip(substream);
1303         snd_pcm_runtime_t *runtime = substream->runtime;
1304         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1305         snd_ali_voice_t *evoice = pvoice->extra;
1306         int err;
1307         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1308         if (err < 0) return err;
1309
1310         /* voice management */
1311
1312         if (params_buffer_size(hw_params)/2 != params_period_size(hw_params)) {
1313                 if (evoice == NULL) {
1314                         evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0, -1);
1315                         if (evoice == NULL)
1316                                 return -ENOMEM;
1317                         pvoice->extra = evoice;
1318                         evoice->substream = substream;
1319                 }
1320         } else {
1321                 if (evoice != NULL) {
1322                         snd_ali_free_voice(codec, evoice);
1323                         pvoice->extra = evoice = NULL;
1324                 }
1325         }
1326
1327         return 0;
1328 }
1329
1330 static int snd_ali_playback_hw_free(snd_pcm_substream_t * substream)
1331 {
1332         ali_t *codec = snd_pcm_substream_chip(substream);
1333         snd_pcm_runtime_t *runtime = substream->runtime;
1334         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1335         snd_ali_voice_t *evoice = pvoice ? pvoice->extra : NULL;
1336
1337         snd_pcm_lib_free_pages(substream);
1338         if (evoice != NULL) {
1339                 snd_ali_free_voice(codec, evoice);
1340                 pvoice->extra = NULL;
1341         }
1342         return 0;
1343 }
1344
1345 static int snd_ali_hw_params(snd_pcm_substream_t * substream,
1346                                  snd_pcm_hw_params_t * hw_params)
1347 {
1348         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1349 }
1350
1351 static int snd_ali_hw_free(snd_pcm_substream_t * substream)
1352 {
1353         return snd_pcm_lib_free_pages(substream);
1354 }
1355
1356 static int snd_ali_playback_prepare(snd_pcm_substream_t * substream)
1357 {
1358         ali_t *codec = snd_pcm_substream_chip(substream);
1359         snd_pcm_runtime_t *runtime = substream->runtime;
1360         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1361         snd_ali_voice_t *evoice = pvoice->extra;
1362         unsigned long flags;
1363
1364         unsigned int LBA;
1365         unsigned int Delta;
1366         unsigned int ESO;
1367         unsigned int CTRL;
1368         unsigned int GVSEL;
1369         unsigned int PAN;
1370         unsigned int VOL;
1371         unsigned int EC;
1372
1373         snd_ali_printk("playback_prepare ...\n");
1374
1375         spin_lock_irqsave(&codec->reg_lock, flags);
1376
1377         /* set Delta (rate) value */
1378         Delta = snd_ali_convert_rate(runtime->rate, 0);
1379
1380         if ((pvoice->number == ALI_SPDIF_IN_CHANNEL) ||
1381             (pvoice->number == ALI_PCM_IN_CHANNEL))
1382                 snd_ali_disable_special_channel(codec, pvoice->number);
1383         else if (codec->spdif_support &&
1384                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)
1385                  && (pvoice->number == ALI_SPDIF_OUT_CHANNEL)) {
1386                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1387                 Delta = 0x1000;
1388         }
1389
1390         /* set Loop Back Address */
1391         LBA = runtime->dma_addr;
1392
1393         /* set interrupt count size */
1394         pvoice->count = runtime->period_size;
1395
1396         /* set target ESO for channel */
1397         pvoice->eso = runtime->buffer_size;
1398
1399         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",pvoice->eso,pvoice->count);
1400
1401         /* set ESO to capture first MIDLP interrupt */
1402         ESO = pvoice->eso -1;
1403         /* set ctrl mode */
1404         CTRL = snd_ali_control_mode(substream);
1405
1406         GVSEL = 1;
1407         PAN = 0;
1408         VOL = 0;
1409         EC = 0;
1410         snd_ali_printk("playback_prepare:\n    ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1411         snd_ali_write_voice_regs(    codec,
1412                                      pvoice->number,
1413                                      LBA,
1414                                      0, /* cso */
1415                                      ESO,
1416                                      Delta,
1417                                      0, /* alpha */
1418                                      GVSEL,
1419                                      PAN,
1420                                      VOL,
1421                                      CTRL,
1422                                      EC);
1423         if (evoice != NULL) {
1424                 evoice->count = pvoice->count;
1425                 evoice->eso = pvoice->count << 1;
1426                 ESO = evoice->eso - 1;
1427                 snd_ali_write_voice_regs(codec,
1428                                      evoice->number,
1429                                      LBA,
1430                                      0, /* cso */
1431                                      ESO,
1432                                      Delta,
1433                                      0, /* alpha */
1434                                      GVSEL,
1435                                      (unsigned int)0x7f,
1436                                      (unsigned int)0x3ff,
1437                                      CTRL,
1438                                      EC);
1439         }
1440         spin_unlock_irqrestore(&codec->reg_lock, flags);
1441         return 0;
1442 }
1443
1444
1445 static int snd_ali_prepare(snd_pcm_substream_t * substream)
1446 {
1447         ali_t *codec = snd_pcm_substream_chip(substream);
1448         snd_pcm_runtime_t *runtime = substream->runtime;
1449         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1450         unsigned long flags;
1451         unsigned int LBA;
1452         unsigned int Delta;
1453         unsigned int ESO;
1454         unsigned int CTRL;
1455         unsigned int GVSEL;
1456         unsigned int PAN;
1457         unsigned int VOL;
1458         unsigned int EC;
1459         u8       bValue;
1460
1461         spin_lock_irqsave(&codec->reg_lock, flags);
1462
1463         snd_ali_printk("ali_prepare...\n");
1464
1465         snd_ali_enable_special_channel(codec,pvoice->number);
1466
1467         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1468                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1469                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1470
1471         // Prepare capture intr channel
1472         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1473
1474                 unsigned int rate;
1475
1476                 if (codec->revision != ALI_5451_V02) {
1477                         spin_unlock_irqrestore(&codec->reg_lock, flags);
1478                         return -1;
1479                 }
1480                 rate = snd_ali_get_spdif_in_rate(codec);
1481                 if (rate == 0) {
1482                         snd_printk("ali_capture_preapre: spdif rate detect err!\n");
1483                         rate = 48000;
1484                 }
1485                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1486                 if (bValue & 0x10) {
1487                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1488                         printk("clear SPDIF parity error flag.\n");
1489                 }
1490
1491                 if (rate != 48000)
1492                         Delta = ((rate << 12)/runtime->rate)&0x00ffff;
1493         }
1494
1495         // set target ESO for channel
1496         pvoice->eso = runtime->buffer_size;
1497
1498         // set interrupt count size
1499         pvoice->count = runtime->period_size;
1500
1501         // set Loop Back Address
1502         LBA = runtime->dma_addr;
1503
1504         // set ESO to capture first MIDLP interrupt
1505         ESO = pvoice->eso - 1;
1506         CTRL = snd_ali_control_mode(substream);
1507         GVSEL = 0;
1508         PAN = 0x00;
1509         VOL = 0x00;
1510         EC = 0;
1511
1512         snd_ali_write_voice_regs(    codec,
1513                                      pvoice->number,
1514                                      LBA,
1515                                      0, /* cso */
1516                                      ESO,
1517                                      Delta,
1518                                      0, /* alpha */
1519                                      GVSEL,
1520                                      PAN,
1521                                      VOL,
1522                                      CTRL,
1523                                      EC);
1524
1525
1526         spin_unlock_irqrestore(&codec->reg_lock, flags);
1527
1528         return 0;
1529 }
1530
1531
1532 static snd_pcm_uframes_t snd_ali_playback_pointer(snd_pcm_substream_t *substream)
1533 {
1534         ali_t *codec = snd_pcm_substream_chip(substream);
1535         snd_pcm_runtime_t *runtime = substream->runtime;
1536         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1537         unsigned int cso;
1538
1539         spin_lock(&codec->reg_lock);
1540         if (!pvoice->running) {
1541                 spin_unlock(&codec->reg_lock);
1542                 return 0;
1543         }
1544         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1545         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1546         spin_unlock(&codec->reg_lock);
1547         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1548
1549         return cso;
1550 }
1551
1552
1553 static snd_pcm_uframes_t snd_ali_pointer(snd_pcm_substream_t *substream)
1554 {
1555         ali_t *codec = snd_pcm_substream_chip(substream);
1556         snd_pcm_runtime_t *runtime = substream->runtime;
1557         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1558         unsigned int cso;
1559         unsigned long flags;
1560
1561         spin_lock_irqsave(&codec->reg_lock, flags);
1562         if (!pvoice->running) {
1563                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1564                 return 0;
1565         }
1566         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1567         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1568         spin_unlock_irqrestore(&codec->reg_lock, flags);
1569
1570         return cso;
1571 }
1572
1573 static snd_pcm_hardware_t snd_ali_playback =
1574 {
1575         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1576                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1577                                  SNDRV_PCM_INFO_MMAP_VALID |
1578                                  SNDRV_PCM_INFO_RESUME |
1579                                  SNDRV_PCM_INFO_SYNC_START),
1580         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1581                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1582         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1583         .rate_min =             4000,
1584         .rate_max =             48000,
1585         .channels_min =         1,
1586         .channels_max =         2,
1587         .buffer_bytes_max =     (256*1024),
1588         .period_bytes_min =     64,
1589         .period_bytes_max =     (256*1024),
1590         .periods_min =          1,
1591         .periods_max =          1024,
1592         .fifo_size =            0,
1593 };
1594
1595 /*
1596  *  Capture support device description
1597  */
1598
1599 static snd_pcm_hardware_t snd_ali_capture =
1600 {
1601         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1602                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1603                                  SNDRV_PCM_INFO_MMAP_VALID |
1604                                  SNDRV_PCM_INFO_RESUME |
1605                                  SNDRV_PCM_INFO_SYNC_START),
1606         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1607                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1608         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1609         .rate_min =             4000,
1610         .rate_max =             48000,
1611         .channels_min =         1,
1612         .channels_max =         2,
1613         .buffer_bytes_max =     (128*1024),
1614         .period_bytes_min =     64,
1615         .period_bytes_max =     (128*1024),
1616         .periods_min =          1,
1617         .periods_max =          1024,
1618         .fifo_size =            0,
1619 };
1620
1621 static void snd_ali_pcm_free_substream(snd_pcm_runtime_t *runtime)
1622 {
1623         unsigned long flags;
1624         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1625         ali_t *codec;
1626
1627         if (pvoice) {
1628                 codec = pvoice->codec;
1629                 spin_lock_irqsave(&codec->reg_lock, flags);
1630                 snd_ali_free_voice(pvoice->codec, pvoice);
1631                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1632         }
1633 }
1634
1635 static int snd_ali_open(snd_pcm_substream_t * substream, int rec, int channel,
1636                 snd_pcm_hardware_t *phw)
1637 {
1638         ali_t *codec = snd_pcm_substream_chip(substream);
1639         snd_pcm_runtime_t *runtime = substream->runtime;
1640         snd_ali_voice_t *pvoice;
1641         unsigned long flags = 0;
1642
1643         spin_lock_irqsave(&codec->reg_lock, flags);
1644         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec, channel);
1645         if (pvoice == NULL) {
1646                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1647                 return -EAGAIN;
1648         }
1649         pvoice->codec = codec;
1650         spin_unlock_irqrestore(&codec->reg_lock, flags);
1651
1652         pvoice->substream = substream;
1653         runtime->private_data = pvoice;
1654         runtime->private_free = snd_ali_pcm_free_substream;
1655
1656         runtime->hw = *phw;
1657         snd_pcm_set_sync(substream);
1658         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1659         return 0;
1660 }
1661
1662 static int snd_ali_playback_open(snd_pcm_substream_t * substream)
1663 {
1664         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1665 }
1666
1667 static int snd_ali_capture_open(snd_pcm_substream_t * substream)
1668 {
1669         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1670 }
1671
1672 static int snd_ali_playback_close(snd_pcm_substream_t * substream)
1673 {
1674         return 0;
1675 }
1676
1677 static int snd_ali_close(snd_pcm_substream_t * substream)
1678 {
1679         ali_t *codec = snd_pcm_substream_chip(substream);
1680         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) substream->runtime->private_data;
1681
1682         snd_ali_disable_special_channel(codec,pvoice->number);
1683
1684         return 0;
1685 }
1686
1687 static snd_pcm_ops_t snd_ali_playback_ops = {
1688         .open =         snd_ali_playback_open,
1689         .close =        snd_ali_playback_close,
1690         .ioctl =        snd_ali_ioctl,
1691         .hw_params =    snd_ali_playback_hw_params,
1692         .hw_free =      snd_ali_playback_hw_free,
1693         .prepare =      snd_ali_playback_prepare,
1694         .trigger =      snd_ali_trigger,
1695         .pointer =      snd_ali_playback_pointer,
1696 };
1697
1698 static snd_pcm_ops_t snd_ali_capture_ops = {
1699         .open =         snd_ali_capture_open,
1700         .close =        snd_ali_close,
1701         .ioctl =        snd_ali_ioctl,
1702         .hw_params =    snd_ali_hw_params,
1703         .hw_free =      snd_ali_hw_free,
1704         .prepare =      snd_ali_prepare,
1705         .trigger =      snd_ali_trigger,
1706         .pointer =      snd_ali_pointer,
1707 };
1708
1709 /*
1710  * Modem PCM
1711  */
1712
1713 static int snd_ali_modem_hw_params(snd_pcm_substream_t * substream,
1714                                  snd_pcm_hw_params_t * hw_params)
1715 {
1716         ali_t *chip = snd_pcm_substream_chip(substream);
1717         unsigned int modem_num = chip->num_of_codecs - 1;
1718         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE, params_rate(hw_params));
1719         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1720         return snd_ali_hw_params(substream, hw_params);
1721 }
1722
1723 static snd_pcm_hardware_t snd_ali_modem =
1724 {
1725         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1726                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1727                                  SNDRV_PCM_INFO_MMAP_VALID |
1728                                  SNDRV_PCM_INFO_RESUME |
1729                                  SNDRV_PCM_INFO_SYNC_START),
1730         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1731         .rates =                SNDRV_PCM_RATE_KNOT|SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000,
1732         .rate_min =             8000,
1733         .rate_max =             16000,
1734         .channels_min =         1,
1735         .channels_max =         1,
1736         .buffer_bytes_max =     (256*1024),
1737         .period_bytes_min =     64,
1738         .period_bytes_max =     (256*1024),
1739         .periods_min =          1,
1740         .periods_max =          1024,
1741         .fifo_size =            0,
1742 };
1743
1744 static int snd_ali_modem_open(snd_pcm_substream_t * substream, int rec, int channel)
1745 {
1746         static unsigned int rates [] = {8000,9600,12000,16000};
1747         static snd_pcm_hw_constraint_list_t hw_constraint_rates = {
1748                 .count = ARRAY_SIZE(rates),
1749                 .list = rates,
1750                 .mask = 0,
1751         };
1752         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1753         if (err)
1754                 return err;
1755         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1756                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1757 }
1758
1759 static int snd_ali_modem_playback_open(snd_pcm_substream_t * substream)
1760 {
1761         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1762 }
1763
1764 static int snd_ali_modem_capture_open(snd_pcm_substream_t * substream)
1765 {
1766         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1767 }
1768
1769 static snd_pcm_ops_t snd_ali_modem_playback_ops = {
1770         .open =         snd_ali_modem_playback_open,
1771         .close =        snd_ali_close,
1772         .ioctl =        snd_pcm_lib_ioctl,
1773         .hw_params =    snd_ali_modem_hw_params,
1774         .hw_free =      snd_ali_hw_free,
1775         .prepare =      snd_ali_prepare,
1776         .trigger =      snd_ali_trigger,
1777         .pointer =      snd_ali_pointer,
1778 };
1779
1780 static snd_pcm_ops_t snd_ali_modem_capture_ops = {
1781         .open =         snd_ali_modem_capture_open,
1782         .close =        snd_ali_close,
1783         .ioctl =        snd_pcm_lib_ioctl,
1784         .hw_params =    snd_ali_modem_hw_params,
1785         .hw_free =      snd_ali_hw_free,
1786         .prepare =      snd_ali_prepare,
1787         .trigger =      snd_ali_trigger,
1788         .pointer =      snd_ali_pointer,
1789 };
1790
1791
1792 struct ali_pcm_description {
1793         char *name;
1794         unsigned int playback_num;
1795         unsigned int capture_num;
1796         snd_pcm_ops_t *playback_ops;
1797         snd_pcm_ops_t *capture_ops;
1798 };
1799
1800
1801 static void snd_ali_pcm_free(snd_pcm_t *pcm)
1802 {
1803         ali_t *codec = pcm->private_data;
1804         codec->pcm[pcm->device] = NULL;
1805 }
1806
1807
1808 static int __devinit snd_ali_pcm(ali_t * codec, int device, struct ali_pcm_description *desc)
1809 {
1810         snd_pcm_t *pcm;
1811         int err;
1812
1813         err = snd_pcm_new(codec->card, desc->name, device,
1814                           desc->playback_num, desc->capture_num, &pcm);
1815         if (err < 0) {
1816                 snd_printk("snd_ali_pcm: err called snd_pcm_new.\n");
1817                 return err;
1818         }
1819         pcm->private_data = codec;
1820         pcm->private_free = snd_ali_pcm_free;
1821         pcm->info_flags = 0;
1822         if (desc->playback_ops)
1823                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, desc->playback_ops);
1824         if (desc->capture_ops)
1825                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, desc->capture_ops);
1826
1827         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1828                                               snd_dma_pci_data(codec->pci), 64*1024, 128*1024);
1829
1830         pcm->info_flags = 0;
1831         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1832         strcpy(pcm->name, desc->name);
1833         codec->pcm[0] = pcm;
1834         return 0;
1835 }
1836
1837 static struct ali_pcm_description ali_pcms[] = {
1838         { "ALI 5451", ALI_CHANNELS, 1, &snd_ali_playback_ops, &snd_ali_capture_ops },
1839         { "ALI 5451 modem", 1, 1, &snd_ali_modem_playback_ops, &snd_ali_modem_capture_ops }
1840 };
1841
1842 static int __devinit snd_ali_build_pcms(ali_t *codec)
1843 {
1844         int i, err;
1845         for(i = 0 ; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms) ; i++)
1846                 if((err = snd_ali_pcm(codec, i, &ali_pcms[i])) < 0)
1847                         return err;
1848         return 0;
1849 }
1850
1851
1852 #define ALI5451_SPDIF(xname, xindex, value) \
1853 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1854 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1855 .put = snd_ali5451_spdif_put, .private_value = value}
1856
1857 static int snd_ali5451_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
1858 {
1859         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1860         uinfo->count = 1;
1861         uinfo->value.integer.min = 0;
1862         uinfo->value.integer.max = 1;
1863         return 0;
1864 }
1865
1866 static int snd_ali5451_spdif_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1867 {
1868         unsigned long flags;
1869         ali_t *codec = kcontrol->private_data;
1870         unsigned int enable;
1871
1872         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1873
1874         spin_lock_irqsave(&codec->reg_lock, flags);
1875         switch(kcontrol->private_value) {
1876         case 0:
1877                 enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1878                 break;
1879         case 1:
1880                 enable = ((codec->spdif_mask & 0x02) && (codec->spdif_mask & 0x04)) ? 1 : 0;
1881                 break;
1882         case 2:
1883                 enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1884                 break;
1885         default:
1886                 break;
1887         }
1888         ucontrol->value.integer.value[0] = enable;
1889         spin_unlock_irqrestore(&codec->reg_lock, flags);
1890         return 0;
1891 }
1892
1893 static int snd_ali5451_spdif_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1894 {
1895         unsigned long flags;
1896         ali_t *codec = kcontrol->private_data;
1897         unsigned int change = 0, enable = 0;
1898
1899         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1900
1901         spin_lock_irqsave(&codec->reg_lock, flags);
1902         switch (kcontrol->private_value) {
1903         case 0:
1904                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1905                 change = change ^ enable;
1906                 if (change) {
1907                         if (enable) {
1908                                 codec->spdif_mask |= 0x02;
1909                                 snd_ali_enable_spdif_out(codec);
1910                         } else {
1911                                 codec->spdif_mask &= ~(0x02);
1912                                 codec->spdif_mask &= ~(0x04);
1913                                 snd_ali_disable_spdif_out(codec);
1914                         }
1915                 }
1916                 break;
1917         case 1:
1918                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1919                 change = change ^ enable;
1920                 if (change && (codec->spdif_mask & 0x02)) {
1921                         if (enable) {
1922                                 codec->spdif_mask |= 0x04;
1923                                 snd_ali_enable_spdif_chnout(codec);
1924                         } else {
1925                                 codec->spdif_mask &= ~(0x04);
1926                                 snd_ali_disable_spdif_chnout(codec);
1927                         }
1928                 }
1929                 break;
1930         case 2:
1931                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1932                 change = change ^ enable;
1933                 if (change) {
1934                         if (enable) {
1935                                 codec->spdif_mask |= 0x01;
1936                                 snd_ali_enable_spdif_in(codec);
1937                         } else {
1938                                 codec->spdif_mask &= ~(0x01);
1939                                 snd_ali_disable_spdif_in(codec);
1940                         }
1941                 }
1942                 break;
1943         default:
1944                 break;
1945         }
1946         spin_unlock_irqrestore(&codec->reg_lock, flags);
1947
1948         return change;
1949 }
1950
1951 static snd_kcontrol_new_t snd_ali5451_mixer_spdif[] __devinitdata = {
1952         /* spdif aplayback switch */
1953         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1954         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1955         /* spdif out to spdif channel */
1956         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1957         /* spdif in from spdif channel */
1958         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1959 };
1960
1961 static void snd_ali_mixer_free_ac97_bus(ac97_bus_t *bus)
1962 {
1963         ali_t *codec = bus->private_data;
1964         codec->ac97_bus = NULL;
1965 }
1966
1967 static void snd_ali_mixer_free_ac97(ac97_t *ac97)
1968 {
1969         ali_t *codec = ac97->private_data;
1970         codec->ac97[ac97->num] = NULL;
1971 }
1972
1973 static int __devinit snd_ali_mixer(ali_t * codec)
1974 {
1975         ac97_template_t ac97;
1976         unsigned int idx;
1977         int i, err;
1978         static ac97_bus_ops_t ops = {
1979                 .write = snd_ali_codec_write,
1980                 .read = snd_ali_codec_read,
1981         };
1982
1983         if ((err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus)) < 0)
1984                 return err;
1985         codec->ac97_bus->private_free = snd_ali_mixer_free_ac97_bus;
1986
1987         memset(&ac97, 0, sizeof(ac97));
1988         ac97.private_data = codec;
1989         ac97.private_free = snd_ali_mixer_free_ac97;
1990
1991         for ( i = 0 ; i < codec->num_of_codecs ; i++) {
1992                 ac97.num = i;
1993                 if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i])) < 0) {
1994                         snd_printk("ali mixer %d creating error.\n", i);
1995                         if(i == 0)
1996                                 return err;
1997                         codec->num_of_codecs = 1;
1998                         break;
1999                 }
2000         }
2001
2002         if (codec->spdif_support) {
2003                 for(idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
2004                         err=snd_ctl_add(codec->card, snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
2005                         if (err < 0) return err;
2006                 }
2007         }
2008         return 0;
2009 }
2010
2011 #ifdef CONFIG_PM
2012 static int ali_suspend(snd_card_t *card, pm_message_t state)
2013 {
2014         ali_t *chip = card->pm_private_data;
2015         ali_image_t *im;
2016         int i, j;
2017
2018         im = chip->image;
2019         if (! im)
2020                 return 0;
2021
2022         for(i = 0 ; i < chip->num_of_codecs ; i++) {
2023                 if (chip->pcm[i])
2024                         snd_pcm_suspend_all(chip->pcm[i]);
2025                 if(chip->ac97[i])
2026                         snd_ac97_suspend(chip->ac97[i]);
2027         }
2028
2029         spin_lock_irq(&chip->reg_lock);
2030
2031         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
2032         // im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START));
2033         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
2034
2035         // disable all IRQ bits
2036         outl(0, ALI_REG(chip, ALI_MISCINT));
2037
2038         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2039                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
2040                         continue;
2041                 im->regs[i] = inl(ALI_REG(chip, i*4));
2042         }
2043
2044         for (i = 0; i < ALI_CHANNELS; i++) {
2045                 outb(i, ALI_REG(chip, ALI_GC_CIR));
2046                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2047                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
2048         }
2049
2050         // stop all HW channel
2051         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
2052
2053         spin_unlock_irq(&chip->reg_lock);
2054         pci_disable_device(chip->pci);
2055         return 0;
2056 }
2057
2058 static int ali_resume(snd_card_t *card)
2059 {
2060         ali_t *chip = card->pm_private_data;
2061         ali_image_t *im;
2062         int i, j;
2063
2064         im = chip->image;
2065         if (! im)
2066                 return 0;
2067
2068         pci_enable_device(chip->pci);
2069
2070         spin_lock_irq(&chip->reg_lock);
2071
2072         for (i = 0; i < ALI_CHANNELS; i++) {
2073                 outb(i, ALI_REG(chip, ALI_GC_CIR));
2074                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2075                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
2076         }
2077
2078         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2079                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) || (i*4 == ALI_START))
2080                         continue;
2081                 outl(im->regs[i], ALI_REG(chip, i*4));
2082         }
2083
2084         // start HW channel
2085         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
2086         // restore IRQ enable bits
2087         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
2088
2089         spin_unlock_irq(&chip->reg_lock);
2090
2091         for(i = 0 ; i < chip->num_of_codecs ; i++)
2092                 if(chip->ac97[i])
2093                         snd_ac97_resume(chip->ac97[i]);
2094
2095         return 0;
2096 }
2097 #endif /* CONFIG_PM */
2098
2099 static int snd_ali_free(ali_t * codec)
2100 {
2101         if (codec->hw_initialized)
2102                 snd_ali_disable_address_interrupt(codec);
2103         if (codec->irq >= 0) {
2104                 synchronize_irq(codec->irq);
2105                 free_irq(codec->irq, (void *)codec);
2106         }
2107         if (codec->port)
2108                 pci_release_regions(codec->pci);
2109         pci_disable_device(codec->pci);
2110 #ifdef CONFIG_PM
2111         kfree(codec->image);
2112 #endif
2113         pci_dev_put(codec->pci_m1533);
2114         pci_dev_put(codec->pci_m7101);
2115         kfree(codec);
2116         return 0;
2117 }
2118
2119 static int snd_ali_chip_init(ali_t *codec)
2120 {
2121         unsigned int legacy;
2122         unsigned char temp;
2123         struct pci_dev *pci_dev = NULL;
2124
2125         snd_ali_printk("chip initializing ... \n");
2126
2127         if (snd_ali_reset_5451(codec)) {
2128                 snd_printk("ali_chip_init: reset 5451 error.\n");
2129                 return -1;
2130         }
2131
2132         if (codec->revision == ALI_5451_V02) {
2133                 pci_dev = codec->pci_m1533;
2134                 pci_read_config_byte(pci_dev, 0x59, &temp);
2135                 temp |= 0x80;
2136                 pci_write_config_byte(pci_dev, 0x59, temp);
2137
2138                 pci_dev = codec->pci_m7101;
2139                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2140                 temp |= 0x20;
2141                 pci_write_config_byte(pci_dev, 0xB8, temp);
2142         }
2143
2144         pci_read_config_dword(codec->pci, 0x44, &legacy);
2145         legacy &= 0xff00ff00;
2146         legacy |= 0x000800aa;
2147         pci_write_config_dword(codec->pci, 0x44, legacy);
2148
2149         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2150         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2151         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2152         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2153         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2154
2155         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2156         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_STATUS);
2157         if (codec->spdif_support) {
2158                 snd_ali_enable_spdif_out(codec);
2159                 codec->spdif_mask = 0x00000002;
2160         }
2161
2162         codec->num_of_codecs = 1;
2163
2164         /* secondary codec - modem */
2165         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2166                 codec->num_of_codecs++;
2167                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2168                         (ALI_SCTRL_LINE_IN2|ALI_SCTRL_GPIO_IN2|ALI_SCTRL_LINE_OUT_EN),
2169                         ALI_REG(codec, ALI_SCTRL));
2170         }
2171
2172         snd_ali_printk("chip initialize succeed.\n");
2173         return 0;
2174
2175 }
2176
2177 /* proc for register dump */
2178 static void snd_ali_proc_read(snd_info_entry_t *entry, snd_info_buffer_t *buf)
2179 {
2180         ali_t *codec = entry->private_data;
2181         int i;
2182         for(i = 0 ; i < 256 ; i+= 4)
2183                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2184 }
2185
2186 static void __devinit snd_ali_proc_init(ali_t *codec)
2187 {
2188         snd_info_entry_t *entry;
2189         if(!snd_card_proc_new(codec->card, "ali5451", &entry))
2190                 snd_info_set_text_ops(entry, codec, 1024, snd_ali_proc_read);
2191 }
2192
2193 static int __devinit snd_ali_resources(ali_t *codec)
2194 {
2195         int err;
2196
2197         snd_ali_printk("resouces allocation ...\n");
2198         if ((err = pci_request_regions(codec->pci, "ALI 5451")) < 0)
2199                 return err;
2200         codec->port = pci_resource_start(codec->pci, 0);
2201
2202         if (request_irq(codec->pci->irq, snd_ali_card_interrupt, SA_INTERRUPT|SA_SHIRQ, "ALI 5451", (void *)codec)) {
2203                 snd_printk("Unable to request irq.\n");
2204                 return -EBUSY;
2205         }
2206         codec->irq = codec->pci->irq;
2207         snd_ali_printk("resouces allocated.\n");
2208         return 0;
2209 }
2210 static int snd_ali_dev_free(snd_device_t *device)
2211 {
2212         ali_t *codec=device->device_data;
2213         snd_ali_free(codec);
2214         return 0;
2215 }
2216
2217 static int __devinit snd_ali_create(snd_card_t * card,
2218                                     struct pci_dev *pci,
2219                                     int pcm_streams,
2220                                     int spdif_support,
2221                                     ali_t ** r_ali)
2222 {
2223         ali_t *codec;
2224         int i, err;
2225         unsigned short cmdw = 0;
2226         struct pci_dev *pci_dev = NULL;
2227         static snd_device_ops_t ops = {
2228                 (snd_dev_free_t *)snd_ali_dev_free,
2229                 NULL,
2230                 NULL
2231         };
2232
2233         *r_ali = NULL;
2234
2235         snd_ali_printk("creating ...\n");
2236
2237         /* enable PCI device */
2238         if ((err = pci_enable_device(pci)) < 0)
2239                 return err;
2240         /* check, if we can restrict PCI DMA transfers to 31 bits */
2241         if (pci_set_dma_mask(pci, 0x7fffffff) < 0 ||
2242             pci_set_consistent_dma_mask(pci, 0x7fffffff) < 0) {
2243                 snd_printk("architecture does not support 31bit PCI busmaster DMA\n");
2244                 pci_disable_device(pci);
2245                 return -ENXIO;
2246         }
2247
2248         if ((codec = kzalloc(sizeof(*codec), GFP_KERNEL)) == NULL) {
2249                 pci_disable_device(pci);
2250                 return -ENOMEM;
2251         }
2252
2253         spin_lock_init(&codec->reg_lock);
2254         spin_lock_init(&codec->voice_alloc);
2255
2256         codec->card = card;
2257         codec->pci = pci;
2258         codec->irq = -1;
2259         pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
2260         codec->spdif_support = spdif_support;
2261
2262         if (pcm_streams < 1)
2263                 pcm_streams = 1;
2264         if (pcm_streams > 32)
2265                 pcm_streams = 32;
2266
2267         pci_set_master(pci);
2268         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2269         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2270                 cmdw |= PCI_COMMAND_IO;
2271                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2272         }
2273         pci_set_master(pci);
2274
2275         if (snd_ali_resources(codec)) {
2276                 snd_ali_free(codec);
2277                 return -EBUSY;
2278         }
2279
2280         synchronize_irq(pci->irq);
2281
2282         codec->synth.chmap = 0;
2283         codec->synth.chcnt = 0;
2284         codec->spdif_mask = 0;
2285         codec->synth.synthcount = 0;
2286
2287         if (codec->revision == ALI_5451_V02)
2288                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2289         else
2290                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2291         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2292
2293         codec->chregs.regs.start  = ALI_START;
2294         codec->chregs.regs.stop   = ALI_STOP;
2295         codec->chregs.regs.aint   = ALI_AINT;
2296         codec->chregs.regs.ainten = ALI_AINTEN;
2297
2298         codec->chregs.data.start  = 0x00;
2299         codec->chregs.data.stop   = 0x00;
2300         codec->chregs.data.aint   = 0x00;
2301         codec->chregs.data.ainten = 0x00;
2302
2303         /* M1533: southbridge */
2304         pci_dev = pci_get_device(0x10b9, 0x1533, NULL);
2305         codec->pci_m1533 = pci_dev;
2306         if (! codec->pci_m1533) {
2307                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2308                 snd_ali_free(codec);
2309                 return -ENODEV;
2310         }
2311         /* M7101: power management */
2312         pci_dev = pci_get_device(0x10b9, 0x7101, NULL);
2313         codec->pci_m7101 = pci_dev;
2314         if (! codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2315                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2316                 snd_ali_free(codec);
2317                 return -ENODEV;
2318         }
2319
2320         snd_ali_printk("snd_device_new is called.\n");
2321         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops)) < 0) {
2322                 snd_ali_free(codec);
2323                 return err;
2324         }
2325
2326         /* initialise synth voices*/
2327         for (i = 0; i < ALI_CHANNELS; i++ ) {
2328                 codec->synth.voices[i].number = i;
2329         }
2330
2331         if ((err = snd_ali_chip_init(codec)) < 0) {
2332                 snd_printk("ali create: chip init error.\n");
2333                 return err;
2334         }
2335
2336 #ifdef CONFIG_PM
2337         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2338         if (! codec->image)
2339                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2340         else
2341                 snd_card_set_pm_callback(card, ali_suspend, ali_resume, codec);
2342 #endif
2343
2344         snd_ali_enable_address_interrupt(codec);
2345         codec->hw_initialized = 1;
2346
2347         *r_ali = codec;
2348         snd_ali_printk("created.\n");
2349         return 0;
2350 }
2351
2352 static int __devinit snd_ali_probe(struct pci_dev *pci,
2353                                    const struct pci_device_id *pci_id)
2354 {
2355         static int dev;
2356         snd_card_t *card;
2357         ali_t *codec;
2358         int err;
2359
2360         snd_ali_printk("probe ...\n");
2361
2362         if (dev >= SNDRV_CARDS)
2363                 return -ENODEV;
2364         if (!enable[dev]) {
2365                 dev++;
2366                 return -ENOENT;
2367         }
2368
2369         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2370         if (card == NULL)
2371                 return -ENOMEM;
2372
2373         if ((err = snd_ali_create(card, pci, pcm_channels[dev], spdif[dev], &codec)) < 0) {
2374                 snd_card_free(card);
2375                 return err;
2376         }
2377
2378         snd_ali_printk("mixer building ...\n");
2379         if ((err = snd_ali_mixer(codec)) < 0) {
2380                 snd_card_free(card);
2381                 return err;
2382         }
2383
2384         snd_ali_printk("pcm building ...\n");
2385         if ((err = snd_ali_build_pcms(codec)) < 0) {
2386                 snd_card_free(card);
2387                 return err;
2388         }
2389
2390         snd_ali_proc_init(codec);
2391
2392         strcpy(card->driver, "ALI5451");
2393         strcpy(card->shortname, "ALI 5451");
2394
2395         sprintf(card->longname, "%s at 0x%lx, irq %li",
2396                 card->shortname, codec->port, codec->irq);
2397
2398         snd_ali_printk("register card.\n");
2399         if ((err = snd_card_register(card)) < 0) {
2400                 snd_card_free(card);
2401                 return err;
2402         }
2403         pci_set_drvdata(pci, card);
2404         dev++;
2405         return 0;
2406 }
2407
2408 static void __devexit snd_ali_remove(struct pci_dev *pci)
2409 {
2410         snd_card_free(pci_get_drvdata(pci));
2411         pci_set_drvdata(pci, NULL);
2412 }
2413
2414 static struct pci_driver driver = {
2415         .name = "ALI 5451",
2416         .owner = THIS_MODULE,
2417         .id_table = snd_ali_ids,
2418         .probe = snd_ali_probe,
2419         .remove = __devexit_p(snd_ali_remove),
2420         SND_PCI_PM_CALLBACKS
2421 };
2422
2423 static int __init alsa_card_ali_init(void)
2424 {
2425         return pci_register_driver(&driver);
2426 }
2427
2428 static void __exit alsa_card_ali_exit(void)
2429 {
2430         pci_unregister_driver(&driver);
2431 }
2432
2433 module_init(alsa_card_ali_init)
2434 module_exit(alsa_card_ali_exit)