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_CLASSES("{sound}");
  47 MODULE_DEVICES("{{ALI,M5451,pci},{ALI,M5451}}");
  48
  49 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
  50 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
  51 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  52 static int pcm_channels[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 32};
  53 static int spdif[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 0};
  54 static int boot_devs;
  55
  56 module_param_array(index, int, boot_devs, 0444);
  57 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  58 MODULE_PARM_SYNTAX(index, SNDRV_INDEX_DESC);
  59 module_param_array(id, charp, boot_devs, 0444);
  60 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  61 MODULE_PARM_SYNTAX(id, SNDRV_ID_DESC);
  62 module_param_array(enable, bool, boot_devs, 0444);
  63 MODULE_PARM_DESC(enable, "Enable ALI 5451 PCI Audio.");
  64 MODULE_PARM_SYNTAX(enable, SNDRV_ENABLE_DESC);
  65 module_param_array(pcm_channels, int, boot_devs, 0444);
  66 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  67 MODULE_PARM_SYNTAX(pcm_channels, SNDRV_ENABLED ",default:32,allows:{{1,32}}");
  68 module_param_array(spdif, bool, boot_devs, 0444);
  69 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  70 MODULE_PARM_SYNTAX(spdif, SNDRV_ENABLED "," SNDRV_BOOLEAN_FALSE_DESC);
  71
  72 /*
  73  *  Debug part definitions
  74  */
  75
  76 //#define ALI_DEBUG
  77
  78 #ifdef ALI_DEBUG
  79 #define snd_ali_printk(format, args...) printk(format, ##args);
  80 #else
  81 #define snd_ali_printk(format, args...)
  82 #endif
  83
  84 /*
  85  *  Constants definition
  86  */
  87
  88 #ifndef PCI_VENDOR_ID_ALI
  89 #define PCI_VENDOR_ID_ALI       0x10b9
  90 #endif
  91
  92 #ifndef PCI_DEVICE_ID_ALI_5451
  93 #define PCI_DEVICE_ID_ALI_5451  0x5451
  94 #endif
  95
  96 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_ALI<<16)|PCI_DEVICE_ID_ALI_5451)
  97
  98
  99 #define ALI_CHANNELS            32
 100
 101 #define ALI_PCM_IN_CHANNEL      31
 102 #define ALI_SPDIF_IN_CHANNEL    19
 103 #define ALI_SPDIF_OUT_CHANNEL   15
 104 #define ALI_CENTER_CHANNEL      24
 105 #define ALI_LEF_CHANNEL         23
 106 #define ALI_SURR_LEFT_CHANNEL   26
 107 #define ALI_SURR_RIGHT_CHANNEL  25
 108
 109 #define SNDRV_ALI_VOICE_TYPE_PCM        01
 110 #define SNDRV_ALI_VOICE_TYPE_OTH        02
 111
 112 #define ALI_5451_V02            0x02
 113
 114 /*
 115  *  Direct Registers
 116  */
 117
 118 #define ALI_LEGACY_DMAR0        0x00  // ADR0
 119 #define ALI_LEGACY_DMAR4        0x04  // CNT0
 120 #define ALI_LEGACY_DMAR11       0x0b  // MOD
 121 #define ALI_LEGACY_DMAR15       0x0f  // MMR
 122 #define ALI_MPUR0               0x20
 123 #define ALI_MPUR1               0x21
 124 #define ALI_MPUR2               0x22
 125 #define ALI_MPUR3               0x23
 126
 127 #define ALI_AC97_WRITE          0x40
 128 #define ALI_AC97_READ           0x44
 129
 130 #define ALI_SCTRL               0x48
 131 #define   ALI_SPDIF_OUT_ENABLE          0x20
 132 #define ALI_AC97_GPIO           0x4c
 133 #define ALI_SPDIF_CS            0x70
 134 #define ALI_SPDIF_CTRL          0x74
 135 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 136 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 137 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 138 #define ALI_START               0x80
 139 #define ALI_STOP                0x84
 140 #define ALI_CSPF                0x90
 141 #define ALI_AINT                0x98
 142 #define ALI_GC_CIR              0xa0
 143         #define ENDLP_IE                0x00001000
 144         #define MIDLP_IE                0x00002000
 145 #define ALI_AINTEN              0xa4
 146 #define ALI_VOLUME              0xa8
 147 #define ALI_SBDELTA_DELTA_R     0xac
 148 #define ALI_MISCINT             0xb0
 149         #define ADDRESS_IRQ             0x00000020
 150         #define TARGET_REACHED          0x00008000
 151         #define MIXER_OVERFLOW          0x00000800
 152         #define MIXER_UNDERFLOW         0x00000400
 153 #define ALI_SBBL_SBCL           0xc0
 154 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 155 #define ALI_STIMER              0xc8
 156 #define ALI_GLOBAL_CONTROL      0xd4
 157 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 158 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 159 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 160 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 161 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 162
 163 #define ALI_CSO_ALPHA_FMS       0xe0
 164 #define ALI_LBA                 0xe4
 165 #define ALI_ESO_DELTA           0xe8
 166 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 167 #define ALI_EBUF1               0xf4
 168 #define ALI_EBUF2               0xf8
 169
 170 #define ALI_REG(codec, x) ((codec)->port + x)
 171
 172 typedef struct snd_stru_ali ali_t;
 173 typedef struct snd_ali_stru_voice snd_ali_voice_t;
 174 #define chip_t ali_t
 175
 176 typedef struct snd_ali_channel_control {
 177         // register data
 178         struct REGDATA {
 179                 unsigned int start;
 180                 unsigned int stop;
 181                 unsigned int aint;
 182                 unsigned int ainten;
 183         } data;
 184
 185         // register addresses
 186         struct REGS {
 187                 unsigned int start;
 188                 unsigned int stop;
 189                 unsigned int aint;
 190                 unsigned int ainten;
 191                 unsigned int ac97read;
 192                 unsigned int ac97write;
 193         } regs;
 194
 195 } snd_ali_channel_control_t;
 196
 197 struct snd_ali_stru_voice {
 198         unsigned int number;
 199         int use: 1,
 200             pcm: 1,
 201             midi: 1,
 202             mode: 1,
 203             synth: 1;
 204
 205         /* PCM data */
 206         ali_t *codec;
 207         snd_pcm_substream_t *substream;
 208         snd_ali_voice_t *extra;
 209
 210         int running: 1;
 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 typedef struct snd_stru_alidev {
 223
 224         snd_ali_voice_t 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 } alidev_t;
 231
 232
 233 #ifdef CONFIG_PM
 234 #define ALI_GLOBAL_REGS         56
 235 #define ALI_CHANNEL_REGS        8
 236 typedef struct snd_ali_image {
 237         unsigned long regs[ALI_GLOBAL_REGS];
 238         unsigned long channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 239 } ali_image_t;
 240 #endif
 241
 242
 243 struct snd_stru_ali {
 244         unsigned long   irq;
 245         unsigned long   port;
 246         unsigned char   revision;
 247
 248         unsigned int hw_initialized: 1;
 249         unsigned int spdif_support: 1;
 250         struct resource *res_port;
 251
 252         struct pci_dev  *pci;
 253         struct pci_dev  *pci_m1533;
 254         struct pci_dev  *pci_m7101;
 255
 256         snd_card_t      *card;
 257         snd_pcm_t       *pcm;
 258         alidev_t        synth;
 259         snd_ali_channel_control_t chregs;
 260
 261         /* S/PDIF Mask */
 262         unsigned int    spdif_mask;
 263
 264         unsigned int spurious_irq_count;
 265         unsigned int spurious_irq_max_delta;
 266
 267         ac97_bus_t *ac97_bus;
 268         ac97_t *ac97;
 269         unsigned short  ac97_ext_id;
 270         unsigned short  ac97_ext_status;
 271
 272         spinlock_t      reg_lock;
 273         spinlock_t      voice_alloc;
 274
 275 #ifdef CONFIG_PM
 276         ali_image_t *image;
 277 #endif
 278 };
 279
 280 static struct pci_device_id snd_ali_ids[] = {
 281         {0x10b9, 0x5451, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
 282         {0, }
 283 };
 284 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 285
 286 static void snd_ali_clear_voices(ali_t *, unsigned int, unsigned int);
 287 static unsigned short snd_ali_codec_peek(ali_t *, int, unsigned short);
 288 static void snd_ali_codec_poke(ali_t *, int, unsigned short, unsigned short);
 289
 290 /*
 291  *  Debug Part
 292  */
 293
 294 #ifdef ALI_DEBUG
 295
 296 static void ali_read_regs(ali_t *codec, int channel)
 297 {
 298         int i,j;
 299         unsigned int dwVal;
 300
 301         printk("channel %d registers map:\n", channel);
 302         outb((unsigned char)(channel & 0x001f), ALI_REG(codec,ALI_GC_CIR));
 303
 304         printk("    ");
 305         for(j=0;j<8;j++)
 306                 printk("%2.2x       ", j*4);
 307         printk("\n");
 308
 309         for (i=0; i<=0xf8/4;i++) {
 310                 if(i%8 == 0)
 311                         printk("%2.2x  ", (i*4/0x10)*0x10);
 312                 dwVal = inl(ALI_REG(codec,i*4));
 313                 printk("%8.8x ", dwVal);
 314                 if ((i+1)%8 == 0)
 315                         printk("\n");
 316         }
 317         printk("\n");
 318 }
 319 static void ali_read_cfg(unsigned int vendor, unsigned deviceid)
 320 {
 321         unsigned int dwVal;
 322         struct pci_dev *pci_dev = NULL;
 323         int i,j;
 324
 325
 326         pci_dev = pci_find_device(vendor, deviceid, pci_dev);
 327         if (pci_dev == NULL)
 328                 return ;
 329
 330         printk("\nM%x PCI CFG\n", deviceid);
 331         printk("    ");
 332         for(j=0;j<8;j++)
 333                 printk("%d        ",j);
 334         printk("\n");
 335
 336         for(i=0;i<8;i++) {
 337                 printk("%d   ",i);
 338                 for(j=0;j<8;j++)
 339                 {
 340                         pci_read_config_dword(pci_dev, i*0x20+j*4, &dwVal);
 341                         printk("%8.8x ", dwVal);
 342                 }
 343                 printk("\n");
 344         }
 345  }
 346 static void ali_read_ac97regs(ali_t *codec, int secondary)
 347 {
 348         unsigned short i,j;
 349         unsigned short wVal;
 350
 351         printk("\ncodec %d registers map:\n", secondary);
 352
 353         printk("    ");
 354         for(j=0;j<8;j++)
 355                 printk("%2.2x   ",j*2);
 356         printk("\n");
 357
 358         for (i=0; i<64;i++) {
 359                 if(i%8 == 0)
 360                         printk("%2.2x  ", (i/8)*0x10);
 361                 wVal = snd_ali_codec_peek(codec, secondary, i*2);
 362                 printk("%4.4x ", wVal);
 363                 if ((i+1)%8 == 0)
 364                         printk("\n");
 365         }
 366         printk("\n");
 367 }
 368
 369 #endif
 370
 371 /*
 372  *  AC97 ACCESS
 373  */
 374
 375 static inline unsigned int snd_ali_5451_peek(ali_t *codec,
 376                                                 unsigned int port )
 377 {
 378         return (unsigned int)inl(ALI_REG(codec, port));
 379 }
 380
 381 static inline void snd_ali_5451_poke(   ali_t *codec,
 382                                         unsigned int port,
 383                                         unsigned int val )
 384 {
 385         outl((unsigned int)val, ALI_REG(codec, port));
 386 }
 387
 388 static int snd_ali_codec_ready( ali_t *codec,
 389                                 unsigned int port,
 390                                 int sched )
 391 {
 392         unsigned long end_time;
 393         unsigned int res;
 394
 395         end_time = jiffies + 10 * (HZ >> 2);
 396         do {
 397                 res = snd_ali_5451_peek(codec,port);
 398                 if (! (res & 0x8000))
 399                         return 0;
 400                 if (sched) {
 401                         set_current_state(TASK_UNINTERRUPTIBLE);
 402                         schedule_timeout(1);
 403                 }
 404         } while (time_after_eq(end_time, jiffies));
 405         snd_ali_5451_poke(codec, port, res & ~0x8000);
 406         snd_printdd("ali_codec_ready: codec is not ready.\n ");
 407         return -EIO;
 408 }
 409
 410 static int snd_ali_stimer_ready(ali_t *codec, int sched)
 411 {
 412         unsigned long end_time;
 413         unsigned long dwChk1,dwChk2;
 414
 415         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 416         dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 417
 418         end_time = jiffies + 10 * (HZ >> 2);
 419         do {
 420                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 421                 if (dwChk2 != dwChk1)
 422                         return 0;
 423                 if (sched) {
 424                         set_current_state(TASK_UNINTERRUPTIBLE);
 425                         schedule_timeout(1);
 426                 }
 427         } while (time_after_eq(end_time, jiffies));
 428         snd_printk("ali_stimer_read: stimer is not ready.\n");
 429         return -EIO;
 430 }
 431
 432 static void snd_ali_codec_poke(ali_t *codec,int secondary,
 433                                      unsigned short reg,
 434                                      unsigned short val)
 435 {
 436         unsigned int dwVal = 0;
 437         unsigned int port = 0;
 438
 439         if (reg >= 0x80) {
 440                 snd_printk("ali_codec_poke: reg(%xh) invalid.\n", reg);
 441                 return;
 442         }
 443
 444         port = codec->chregs.regs.ac97write;
 445
 446         if (snd_ali_codec_ready(codec, port, 0) < 0)
 447                 return;
 448         if (snd_ali_stimer_ready(codec, 0) < 0)
 449                 return;
 450
 451         dwVal  = (unsigned int) (reg & 0xff);
 452         dwVal |= 0x8000 | (val << 16);
 453         if (secondary) dwVal |= 0x0080;
 454         if (codec->revision == ALI_5451_V02) dwVal |= 0x0100;
 455
 456         snd_ali_5451_poke(codec,port,dwVal);
 457
 458         return ;
 459 }
 460
 461 static unsigned short snd_ali_codec_peek( ali_t *codec,
 462                                           int secondary,
 463                                           unsigned short reg)
 464 {
 465         unsigned int dwVal = 0;
 466         unsigned int port = 0;
 467
 468         if (reg >= 0x80) {
 469                 snd_printk("ali_codec_peek: reg(%xh) invalid.\n", reg);
 470                 return ~0;
 471         }
 472
 473         port = codec->chregs.regs.ac97read;
 474
 475         if (snd_ali_codec_ready(codec, port, 0) < 0)
 476                 return ~0;
 477         if (snd_ali_stimer_ready(codec, 0) < 0)
 478                 return ~0;
 479
 480         dwVal  = (unsigned int) (reg & 0xff);
 481         dwVal |= 0x8000;                                /* bit 15*/
 482         if (secondary) dwVal |= 0x0080;
 483
 484         snd_ali_5451_poke(codec, port, dwVal);
 485
 486         if (snd_ali_stimer_ready(codec, 0) < 0)
 487                 return ~0;
 488         if (snd_ali_codec_ready(codec, port, 0) < 0)
 489                 return ~0;
 490
 491         return (snd_ali_5451_peek(codec, port) & 0xffff0000)>>16;
 492 }
 493
 494 static void snd_ali_codec_write(ac97_t *ac97,
 495                                 unsigned short reg,
 496                                 unsigned short val )
 497 {
 498         ali_t *codec = snd_magic_cast(ali_t, ac97->private_data, return);
 499
 500         snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
 501         snd_ali_codec_poke(codec, 0, reg, val);
 502         return ;
 503 }
 504
 505
 506 static unsigned short snd_ali_codec_read(ac97_t *ac97, unsigned short reg)
 507 {
 508         ali_t *codec = snd_magic_cast(ali_t, ac97->private_data, return -ENXIO);
 509
 510         snd_ali_printk("codec_read reg=%xh.\n", reg);
 511         return (snd_ali_codec_peek(codec, 0, reg));
 512 }
 513
 514 /*
 515  *      AC97 Reset
 516  */
 517
 518 static int snd_ali_reset_5451(ali_t *codec)
 519 {
 520         struct pci_dev *pci_dev = NULL;
 521         unsigned short wCount, wReg;
 522         unsigned int   dwVal;
 523
 524         if ((pci_dev = codec->pci_m1533) != NULL) {
 525                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 526                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 527                 udelay(5000);
 528                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 529                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 530                 udelay(5000);
 531         }
 532
 533         pci_dev = codec->pci;
 534         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 535         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 536         udelay(500);
 537         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 538         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 539         udelay(5000);
 540
 541         wCount = 200;
 542         while(wCount--) {
 543                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 544                 if((wReg & 0x000f) == 0x000f)
 545                         return 0;
 546                 udelay(5000);
 547         }
 548
 549         /* non-fatal if you have a non PM capable codec */
 550         /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
 551         return 0;
 552 }
 553
 554 #ifdef CODEC_RESET
 555
 556 static int snd_ali_reset_codec(ali_t *codec)
 557 {
 558         struct pci_dev *pci_dev = NULL;
 559         unsigned char bVal = 0;
 560         unsigned int   dwVal;
 561         unsigned short wCount, wReg;
 562
 563         pci_dev = codec->pci_m1533;
 564
 565         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 566         pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 567         udelay(5000);
 568         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 569         pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 570         udelay(5000);
 571
 572         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 573         bVal |= 0x02;
 574         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 575         udelay(5000);
 576         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 577         bVal &= 0xfd;
 578         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 579         udelay(15000);
 580
 581         wCount = 200;
 582         while(wCount--) {
 583                 wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
 584                 if((wReg & 0x000f) == 0x000f)
 585                         return 0;
 586                 udelay(5000);
 587         }
 588         return -1;
 589 }
 590
 591 #endif
 592
 593 /*
 594  *  ALI 5451 Controller
 595  */
 596
 597 static void snd_ali_enable_special_channel(ali_t *codec, unsigned int channel)
 598 {
 599         unsigned long dwVal = 0;
 600
 601         dwVal  = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
 602         dwVal |= 1 << (channel & 0x0000001f);
 603         outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
 604 }
 605
 606 static void snd_ali_disable_special_channel(ali_t *codec, unsigned int channel)
 607 {
 608         unsigned long dwVal = 0;
 609
 610         dwVal  = inl(ALI_REG(codec,ALI_GLOBAL_CONTROL));
 611         dwVal &= ~(1 << (channel & 0x0000001f));
 612         outl(dwVal, ALI_REG(codec,ALI_GLOBAL_CONTROL));
 613 }
 614
 615 static void snd_ali_enable_address_interrupt(ali_t * codec)
 616 {
 617         unsigned int gc;
 618
 619         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 620         gc |= ENDLP_IE;
 621         gc |= MIDLP_IE;
 622         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 623 }
 624
 625 static void snd_ali_disable_address_interrupt(ali_t * codec)
 626 {
 627         unsigned int gc;
 628
 629         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 630         gc &= ~ENDLP_IE;
 631         gc &= ~MIDLP_IE;
 632         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 633 }
 634
 635 #if 0 // not used
 636 static void snd_ali_enable_voice_irq(ali_t *codec, unsigned int channel)
 637 {
 638         unsigned int mask;
 639         snd_ali_channel_control_t *pchregs = &(codec->chregs);
 640
 641         snd_ali_printk("enable_voice_irq channel=%d\n",channel);
 642
 643         mask = 1 << (channel & 0x1f);
 644         pchregs->data.ainten  = inl(ALI_REG(codec,pchregs->regs.ainten));
 645         pchregs->data.ainten |= mask;
 646         outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
 647 }
 648 #endif
 649
 650 static void snd_ali_disable_voice_irq(ali_t *codec, unsigned int channel)
 651 {
 652         unsigned int mask;
 653         snd_ali_channel_control_t *pchregs = &(codec->chregs);
 654
 655         snd_ali_printk("disable_voice_irq channel=%d\n",channel);
 656
 657         mask = 1 << (channel & 0x1f);
 658         pchregs->data.ainten  = inl(ALI_REG(codec,pchregs->regs.ainten));
 659         pchregs->data.ainten &= ~mask;
 660         outl(pchregs->data.ainten,ALI_REG(codec,pchregs->regs.ainten));
 661 }
 662
 663 static int snd_ali_alloc_pcm_channel(ali_t *codec, int channel)
 664 {
 665         unsigned int idx =  channel & 0x1f;
 666
 667         if (codec->synth.chcnt >= ALI_CHANNELS){
 668                 snd_printk("ali_alloc_pcm_channel: no free channels.\n");
 669                 return -1;
 670         }
 671
 672         if (!(codec->synth.chmap & (1 << idx))) {
 673                 codec->synth.chmap |= 1 << idx;
 674                 codec->synth.chcnt++;
 675                 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
 676                 return idx;
 677         }
 678         return -1;
 679 }
 680
 681 static int snd_ali_find_free_channel(ali_t * codec, int rec)
 682 {
 683         int idx;
 684         int result = -1;
 685
 686         snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
 687
 688         // recording
 689         if (rec) {
 690                 if (codec->spdif_support &&
 691                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_IN_SUPPORT))
 692                         idx = ALI_SPDIF_IN_CHANNEL;
 693                 else
 694                         idx = ALI_PCM_IN_CHANNEL;
 695
 696                 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
 697                         return result;
 698                 } else {
 699                         snd_printk("ali_find_free_channel: record channel is busy now.\n");
 700                         return -1;
 701                 }
 702         }
 703
 704         //playback...
 705         if (codec->spdif_support &&
 706             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)) {
 707                 idx = ALI_SPDIF_OUT_CHANNEL;
 708                 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0) {
 709                         return result;
 710                 } else {
 711                         snd_printk("ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 712                 }
 713         }
 714
 715         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 716                 if ((result = snd_ali_alloc_pcm_channel(codec,idx)) >= 0)
 717                         return result;
 718         }
 719         snd_printk("ali_find_free_channel: no free channels.\n");
 720         return -1;
 721 }
 722
 723 static void snd_ali_free_channel_pcm(ali_t *codec, int channel)
 724 {
 725         unsigned int idx = channel & 0x0000001f;
 726
 727         snd_ali_printk("free_channel_pcm channel=%d\n",channel);
 728
 729         if (channel < 0 || channel >= ALI_CHANNELS)
 730                 return;
 731
 732         if (!(codec->synth.chmap & (1 << idx))) {
 733                 snd_printk("ali_free_channel_pcm: channel %d is not in use.\n",channel);
 734                 return;
 735         } else {
 736                 codec->synth.chmap &= ~(1 << idx);
 737                 codec->synth.chcnt--;
 738         }
 739 }
 740
 741 #if 0 // not used
 742 static void snd_ali_start_voice(ali_t * codec, unsigned int channel)
 743 {
 744         unsigned int mask = 1 << (channel & 0x1f);
 745
 746         snd_ali_printk("start_voice: channel=%d\n",channel);
 747         outl(mask, ALI_REG(codec,codec->chregs.regs.start));
 748 }
 749 #endif
 750
 751 static void snd_ali_stop_voice(ali_t * codec, unsigned int channel)
 752 {
 753         unsigned int mask = 1 << (channel & 0x1f);
 754
 755         snd_ali_printk("stop_voice: channel=%d\n",channel);
 756         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 757 }
 758
 759 /*
 760  *    S/PDIF Part
 761  */
 762
 763 static void snd_ali_delay(ali_t *codec,int interval)
 764 {
 765         unsigned long  begintimer,currenttimer;
 766
 767         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 768         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 769
 770         while (currenttimer < begintimer + interval) {
 771                 if(snd_ali_stimer_ready(codec, 1) < 0)
 772                         break;
 773                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 774         }
 775 }
 776
 777 static void snd_ali_detect_spdif_rate(ali_t *codec)
 778 {
 779         u16 wval  = 0;
 780         u16 count = 0;
 781         u8  bval = 0, R1 = 0, R2 = 0;
 782
 783         bval  = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 784         bval |= 0x1F;
 785         outb(bval,ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 786
 787         while (((R1 < 0x0B )||(R1 > 0x0E)) && (R1 != 0x12) && count <= 50000) {
 788                 count ++;
 789                 snd_ali_delay(codec, 6);
 790                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 791                 R1 = bval & 0x1F;
 792         }
 793
 794         if (count > 50000) {
 795                 snd_printk("ali_detect_spdif_rate: timeout!\n");
 796                 return;
 797         }
 798
 799         count = 0;
 800         while (count++ <= 50000) {
 801                 snd_ali_delay(codec, 6);
 802                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 803                 R2 = bval & 0x1F;
 804                 if (R2 != R1) R1 = R2; else break;
 805         }
 806
 807         if (count > 50000) {
 808                 snd_printk("ali_detect_spdif_rate: timeout!\n");
 809                 return;
 810         }
 811
 812         if (R2 >= 0x0b && R2 <= 0x0e) {
 813                 wval  = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 814                 wval &= 0xE0F0;
 815                 wval |= (u16)0x09 << 8 | (u16)0x05;
 816                 outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 817
 818                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
 819                 outb(bval|0x02,ALI_REG(codec,ALI_SPDIF_CS + 3));
 820         } else if (R2 == 0x12) {
 821                 wval  = inw(ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 822                 wval &= 0xE0F0;
 823                 wval |= (u16)0x0E << 8 | (u16)0x08;
 824                 outw(wval,ALI_REG(codec,ALI_SPDIF_CTRL + 2));
 825
 826                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS +3)) & 0xF0;
 827                 outb(bval|0x03,ALI_REG(codec,ALI_SPDIF_CS + 3));
 828         }
 829 }
 830
 831 static unsigned int snd_ali_get_spdif_in_rate(ali_t *codec)
 832 {
 833         u32     dwRate = 0;
 834         u8      bval = 0;
 835
 836         bval  = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
 837         bval &= 0x7F;
 838         bval |= 0x40;
 839         outb(bval, ALI_REG(codec,ALI_SPDIF_CTRL));
 840
 841         snd_ali_detect_spdif_rate(codec);
 842
 843         bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3));
 844         bval &= 0x0F;
 845
 846         if (bval == 0) dwRate = 44100;
 847         if (bval == 1) dwRate = 48000;
 848         if (bval == 2) dwRate = 32000;
 849
 850         return dwRate;
 851 }
 852
 853 static void snd_ali_enable_spdif_in(ali_t *codec)
 854 {
 855         unsigned int dwVal;
 856
 857         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 858         dwVal |= ALI_SPDIF_IN_SUPPORT;
 859         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 860
 861         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 862         dwVal |= 0x02;
 863         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 864
 865         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 866 }
 867
 868 static void snd_ali_disable_spdif_in(ali_t *codec)
 869 {
 870         unsigned int dwVal;
 871
 872         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 873         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 874         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 875
 876         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 877 }
 878
 879
 880 static void snd_ali_set_spdif_out_rate(ali_t *codec, unsigned int rate)
 881 {
 882         unsigned char  bVal;
 883         unsigned int  dwRate = 0;
 884
 885         if (rate == 32000) dwRate = 0x300;
 886         if (rate == 44100) dwRate = 0;
 887         if (rate == 48000) dwRate = 0x200;
 888
 889         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 890         bVal &= (unsigned char)(~(1<<6));
 891
 892         bVal |= 0x80;           //select right
 893         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 894         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 895
 896         bVal &= (~0x80);        //select left
 897         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 898         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 899 }
 900
 901 static void snd_ali_enable_spdif_out(ali_t *codec)
 902 {
 903         unsigned short wVal;
 904         unsigned char bVal;
 905
 906         struct pci_dev *pci_dev = NULL;
 907
 908         pci_dev = codec->pci_m1533;
 909         if (pci_dev == NULL)
 910                 return;
 911         pci_read_config_byte(pci_dev, 0x61, &bVal);
 912         bVal |= 0x40;
 913         pci_write_config_byte(pci_dev, 0x61, bVal);
 914         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 915         bVal |= 0x01;
 916         pci_write_config_byte(pci_dev, 0x7d, bVal);
 917
 918         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 919         bVal &= (~0x20);
 920         bVal |= 0x10;
 921         pci_write_config_byte(pci_dev, 0x7e, bVal);
 922
 923         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 924         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 925
 926         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 927         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 928
 929         {
 930                 wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 931                 wVal |= ALI_SPDIF_OUT_SEL_PCM;
 932                 outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 933                 snd_ali_disable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
 934         }
 935 }
 936
 937 static void snd_ali_enable_spdif_chnout(ali_t *codec)
 938 {
 939         unsigned short wVal = 0;
 940
 941         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 942         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 943         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 944 /*
 945         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 946         if (flag & ALI_SPDIF_OUT_NON_PCM)
 947                 wVal |= 0x0002;
 948         else
 949                 wVal &= (~0x0002);
 950         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 951 */
 952         snd_ali_enable_special_channel(codec,ALI_SPDIF_OUT_CHANNEL);
 953 }
 954
 955 static void snd_ali_disable_spdif_chnout(ali_t *codec)
 956 {
 957         unsigned short wVal = 0;
 958         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 959         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 960         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 961
 962         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 963 }
 964
 965 static void snd_ali_disable_spdif_out(ali_t *codec)
 966 {
 967         unsigned char  bVal;
 968
 969         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 970         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 971
 972         snd_ali_disable_spdif_chnout(codec);
 973 }
 974
 975 static void snd_ali_update_ptr(ali_t *codec,int channel)
 976 {
 977         snd_ali_voice_t *pvoice = NULL;
 978         snd_pcm_runtime_t *runtime;
 979         snd_ali_channel_control_t *pchregs = NULL;
 980         unsigned int old, mask;
 981 #ifdef ALI_DEBUG
 982         unsigned int temp, cspf;
 983 #endif
 984
 985         pchregs = &(codec->chregs);
 986
 987         // check if interrupt occurred for channel
 988         old  = pchregs->data.aint;
 989         mask = ((unsigned int) 1L) << (channel & 0x1f);
 990
 991         if (!(old & mask))
 992                 return;
 993
 994         pvoice = &codec->synth.voices[channel];
 995         runtime = pvoice->substream->runtime;
 996
 997         udelay(100);
 998         spin_lock(&codec->reg_lock);
 999
1000         if (pvoice->pcm && pvoice->substream) {
1001                 /* pcm interrupt */
1002 #ifdef ALI_DEBUG
1003                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
1004                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1005                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
1006 #endif
1007                 if (pvoice->running) {
1008                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",(u16)temp,cspf);
1009                         spin_unlock(&codec->reg_lock);
1010                         snd_pcm_period_elapsed(pvoice->substream);
1011                         spin_lock(&codec->reg_lock);
1012                 } else {
1013                         snd_ali_stop_voice(codec, channel);
1014                         snd_ali_disable_voice_irq(codec, channel);
1015                 }
1016         } else if (codec->synth.voices[channel].synth) {
1017                 /* synth interrupt */
1018         } else if (codec->synth.voices[channel].midi) {
1019                 /* midi interrupt */
1020         } else {
1021                 /* unknown interrupt */
1022                 snd_ali_stop_voice(codec, channel);
1023                 snd_ali_disable_voice_irq(codec, channel);
1024         }
1025         spin_unlock(&codec->reg_lock);
1026         outl(mask,ALI_REG(codec,pchregs->regs.aint));
1027         pchregs->data.aint = old & (~mask);
1028 }
1029
1030 static void snd_ali_interrupt(ali_t * codec)
1031 {
1032         int channel;
1033         unsigned int audio_int;
1034         snd_ali_channel_control_t *pchregs = NULL;
1035         pchregs = &(codec->chregs);
1036
1037         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
1038         if (audio_int & ADDRESS_IRQ) {
1039                 // get interrupt status for all channels
1040                 pchregs->data.aint = inl(ALI_REG(codec,pchregs->regs.aint));
1041                 for (channel = 0; channel < ALI_CHANNELS; channel++) {
1042                         snd_ali_update_ptr(codec, channel);
1043                 }
1044         }
1045         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
1046                 ALI_REG(codec,ALI_MISCINT));
1047 }
1048
1049
1050 static irqreturn_t snd_ali_card_interrupt(int irq,
1051                                    void *dev_id,
1052                                    struct pt_regs *regs)
1053 {
1054         ali_t   *codec = snd_magic_cast(ali_t, dev_id, return IRQ_NONE);
1055
1056         if (codec == NULL)
1057                 return IRQ_NONE;
1058         snd_ali_interrupt(codec);
1059         return IRQ_HANDLED;
1060 }
1061
1062
1063 static snd_ali_voice_t *snd_ali_alloc_voice(ali_t * codec, int type, int rec)
1064 {
1065         snd_ali_voice_t *pvoice = NULL;
1066         unsigned long flags;
1067         int idx;
1068
1069         snd_ali_printk("alloc_voice: type=%d rec=%d\n",type,rec);
1070
1071         spin_lock_irqsave(&codec->voice_alloc, flags);
1072         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
1073                 idx = snd_ali_find_free_channel(codec,rec);
1074                 if(idx < 0) {
1075                         snd_printk("ali_alloc_voice: err.\n");
1076                         spin_unlock_irqrestore(&codec->voice_alloc, flags);
1077                         return NULL;
1078                 }
1079                 pvoice = &(codec->synth.voices[idx]);
1080                 pvoice->use = 1;
1081                 pvoice->pcm = 1;
1082                 pvoice->mode = rec;
1083                 spin_unlock_irqrestore(&codec->voice_alloc, flags);
1084                 return pvoice;
1085         }
1086         spin_unlock_irqrestore(&codec->voice_alloc, flags);
1087         return NULL;
1088 }
1089
1090
1091 static void snd_ali_free_voice(ali_t * codec, snd_ali_voice_t *pvoice)
1092 {
1093         unsigned long flags;
1094         void (*private_free)(void *);
1095         void *private_data;
1096
1097         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
1098         if (pvoice == NULL || !pvoice->use)
1099                 return;
1100         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
1101         spin_lock_irqsave(&codec->voice_alloc, flags);
1102         private_free = pvoice->private_free;
1103         private_data = pvoice->private_data;
1104         pvoice->private_free = NULL;
1105         pvoice->private_data = NULL;
1106         if (pvoice->pcm) {
1107                 snd_ali_free_channel_pcm(codec, pvoice->number);
1108         }
1109         pvoice->use = pvoice->pcm = pvoice->synth = 0;
1110         pvoice->substream = NULL;
1111         spin_unlock_irqrestore(&codec->voice_alloc, flags);
1112         if (private_free)
1113                 private_free(private_data);
1114 }
1115
1116
1117 static void snd_ali_clear_voices(ali_t * codec,
1118                           unsigned int v_min,
1119                           unsigned int v_max)
1120 {
1121         unsigned int i;
1122
1123         for (i = v_min; i <= v_max; i++) {
1124                 snd_ali_stop_voice(codec, i);
1125                 snd_ali_disable_voice_irq(codec, i);
1126         }
1127 }
1128
1129 static void snd_ali_write_voice_regs(ali_t * codec,
1130                          unsigned int Channel,
1131                          unsigned int LBA,
1132                          unsigned int CSO,
1133                          unsigned int ESO,
1134                          unsigned int DELTA,
1135                          unsigned int ALPHA_FMS,
1136                          unsigned int GVSEL,
1137                          unsigned int PAN,
1138                          unsigned int VOL,
1139                          unsigned int CTRL,
1140                          unsigned int EC)
1141 {
1142         unsigned int ctlcmds[4];
1143
1144         outb((unsigned char)(Channel & 0x001f),ALI_REG(codec,ALI_GC_CIR));
1145
1146         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1147         ctlcmds[1] =  LBA;
1148         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1149         ctlcmds[3] =  (GVSEL << 31) |
1150                       ((PAN & 0x0000007f) << 24) |
1151                       ((VOL & 0x000000ff) << 16) |
1152                       ((CTRL & 0x0000000f) << 12) |
1153                       (EC & 0x00000fff);
1154
1155         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1156
1157         outl(ctlcmds[0], ALI_REG(codec,ALI_CSO_ALPHA_FMS));
1158         outl(ctlcmds[1], ALI_REG(codec,ALI_LBA));
1159         outl(ctlcmds[2], ALI_REG(codec,ALI_ESO_DELTA));
1160         outl(ctlcmds[3], ALI_REG(codec,ALI_GVSEL_PAN_VOC_CTRL_EC));
1161
1162         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1163         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1164 }
1165
1166 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1167 {
1168         unsigned int delta;
1169
1170         if (rate < 4000)  rate = 4000;
1171         if (rate > 48000) rate = 48000;
1172
1173         if (rec) {
1174                 if (rate == 44100)
1175                         delta = 0x116a;
1176                 else if (rate == 8000)
1177                         delta = 0x6000;
1178                 else if (rate == 48000)
1179                         delta = 0x1000;
1180                 else
1181                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1182         } else {
1183                 if (rate == 44100)
1184                         delta = 0xeb3;
1185                 else if (rate == 8000)
1186                         delta = 0x2ab;
1187                 else if (rate == 48000)
1188                         delta = 0x1000;
1189                 else
1190                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1191         }
1192
1193         return delta;
1194 }
1195
1196 static unsigned int snd_ali_control_mode(snd_pcm_substream_t *substream)
1197 {
1198         unsigned int CTRL;
1199         snd_pcm_runtime_t *runtime = substream->runtime;
1200
1201         /* set ctrl mode
1202            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1203          */
1204         CTRL = 0x00000001;
1205         if (snd_pcm_format_width(runtime->format) == 16)
1206                 CTRL |= 0x00000008;     // 16-bit data
1207         if (!snd_pcm_format_unsigned(runtime->format))
1208                 CTRL |= 0x00000002;     // signed data
1209         if (runtime->channels > 1)
1210                 CTRL |= 0x00000004;     // stereo data
1211         return CTRL;
1212 }
1213
1214 /*
1215  *  PCM part
1216  */
1217
1218 static int snd_ali_ioctl(snd_pcm_substream_t * substream,
1219                                   unsigned int cmd, void *arg)
1220 {
1221         return snd_pcm_lib_ioctl(substream, cmd, arg);
1222 }
1223
1224 static int snd_ali_trigger(snd_pcm_substream_t *substream,
1225                                int cmd)
1226
1227 {
1228         ali_t *codec = snd_pcm_substream_chip(substream);
1229         struct list_head *pos;
1230         snd_pcm_substream_t *s;
1231         unsigned int what, whati, capture_flag;
1232         snd_ali_voice_t *pvoice = NULL, *evoice = NULL;
1233         unsigned int val;
1234         int do_start;
1235
1236         switch (cmd) {
1237         case SNDRV_PCM_TRIGGER_START:
1238         case SNDRV_PCM_TRIGGER_RESUME:
1239                 do_start = 1; break;
1240         case SNDRV_PCM_TRIGGER_STOP:
1241         case SNDRV_PCM_TRIGGER_SUSPEND:
1242                 do_start = 0; break;
1243         default:
1244                 return -EINVAL;
1245         }
1246
1247         what = whati = capture_flag = 0;
1248         snd_pcm_group_for_each(pos, substream) {
1249                 s = snd_pcm_group_substream_entry(pos);
1250                 if ((ali_t *) _snd_pcm_chip(s->pcm) == codec) {
1251                         pvoice = (snd_ali_voice_t *) s->runtime->private_data;
1252                         evoice = pvoice->extra;
1253                         what |= 1 << (pvoice->number & 0x1f);
1254                         if (evoice == NULL) {
1255                                 whati |= 1 << (pvoice->number & 0x1f);
1256                         } else {
1257                                 whati |= 1 << (evoice->number & 0x1f);
1258                                 what |= 1 << (evoice->number & 0x1f);
1259                         }
1260                         if (do_start) {
1261                                 pvoice->running = 1;
1262                                 if (evoice != NULL)
1263                                         evoice->running = 1;
1264                         } else {
1265                                 pvoice->running = 0;
1266                                 if (evoice != NULL)
1267                                         evoice->running = 0;
1268                         }
1269                         snd_pcm_trigger_done(s, substream);
1270                         if (pvoice->mode)
1271                                 capture_flag = 1;
1272                 }
1273         }
1274         spin_lock(&codec->reg_lock);
1275         if (! do_start) {
1276                 outl(what, ALI_REG(codec, ALI_STOP));
1277         }
1278         val = inl(ALI_REG(codec, ALI_AINTEN));
1279         if (do_start) {
1280                 val |= whati;
1281         } else {
1282                 val &= ~whati;
1283         }
1284         outl(val, ALI_REG(codec, ALI_AINTEN));
1285         if (do_start) {
1286                 outl(what, ALI_REG(codec, ALI_START));
1287         }
1288         snd_ali_printk("trigger: what=%xh whati=%xh\n",what,whati);
1289         spin_unlock(&codec->reg_lock);
1290
1291         return 0;
1292 }
1293
1294 static int snd_ali_playback_hw_params(snd_pcm_substream_t * substream,
1295                                  snd_pcm_hw_params_t * hw_params)
1296 {
1297         ali_t *codec = snd_pcm_substream_chip(substream);
1298         snd_pcm_runtime_t *runtime = substream->runtime;
1299         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1300         snd_ali_voice_t *evoice = pvoice->extra;
1301         int err;
1302         err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1303         if (err < 0) return err;
1304
1305         /* voice management */
1306
1307         if (params_buffer_size(hw_params)/2 != params_period_size(hw_params)) {
1308                 if (evoice == NULL) {
1309                         evoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
1310                         if (evoice == NULL)
1311                                 return -ENOMEM;
1312                         pvoice->extra = evoice;
1313                         evoice->substream = substream;
1314                 }
1315         } else {
1316                 if (evoice != NULL) {
1317                         snd_ali_free_voice(codec, evoice);
1318                         pvoice->extra = evoice = NULL;
1319                 }
1320         }
1321
1322         return 0;
1323 }
1324
1325 static int snd_ali_playback_hw_free(snd_pcm_substream_t * substream)
1326 {
1327         ali_t *codec = snd_pcm_substream_chip(substream);
1328         snd_pcm_runtime_t *runtime = substream->runtime;
1329         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1330         snd_ali_voice_t *evoice = pvoice ? pvoice->extra : NULL;
1331
1332         snd_pcm_lib_free_pages(substream);
1333         if (evoice != NULL) {
1334                 snd_ali_free_voice(codec, evoice);
1335                 pvoice->extra = NULL;
1336         }
1337         return 0;
1338 }
1339
1340 static int snd_ali_capture_hw_params(snd_pcm_substream_t * substream,
1341                                  snd_pcm_hw_params_t * hw_params)
1342 {
1343         return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
1344 }
1345
1346 static int snd_ali_capture_hw_free(snd_pcm_substream_t * substream)
1347 {
1348         return snd_pcm_lib_free_pages(substream);
1349 }
1350
1351 static int snd_ali_playback_prepare(snd_pcm_substream_t * substream)
1352 {
1353         ali_t *codec = snd_pcm_substream_chip(substream);
1354         snd_pcm_runtime_t *runtime = substream->runtime;
1355         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1356         snd_ali_voice_t *evoice = pvoice->extra;
1357         unsigned long flags;
1358
1359         unsigned int LBA;
1360         unsigned int Delta;
1361         unsigned int ESO;
1362         unsigned int CTRL;
1363         unsigned int GVSEL;
1364         unsigned int PAN;
1365         unsigned int VOL;
1366         unsigned int EC;
1367
1368         snd_ali_printk("playback_prepare ...\n");
1369
1370         spin_lock_irqsave(&codec->reg_lock, flags);
1371
1372         /* set Delta (rate) value */
1373         Delta = snd_ali_convert_rate(runtime->rate, 0);
1374
1375         if ((pvoice->number == ALI_SPDIF_IN_CHANNEL) ||
1376             (pvoice->number == ALI_PCM_IN_CHANNEL))
1377                 snd_ali_disable_special_channel(codec, pvoice->number);
1378         else if (codec->spdif_support &&
1379                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) & ALI_SPDIF_OUT_CH_ENABLE)
1380                  && (pvoice->number == ALI_SPDIF_OUT_CHANNEL)) {
1381                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1382                 Delta = 0x1000;
1383         }
1384
1385         /* set Loop Back Address */
1386         LBA = runtime->dma_addr;
1387
1388         /* set interrupt count size */
1389         pvoice->count = runtime->period_size;
1390
1391         /* set target ESO for channel */
1392         pvoice->eso = runtime->buffer_size;
1393
1394         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",pvoice->eso,pvoice->count);
1395
1396         /* set ESO to capture first MIDLP interrupt */
1397         ESO = pvoice->eso -1;
1398         /* set ctrl mode */
1399         CTRL = snd_ali_control_mode(substream);
1400
1401         GVSEL = 1;
1402         PAN = 0;
1403         VOL = 0;
1404         EC = 0;
1405         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);
1406         snd_ali_write_voice_regs(    codec,
1407                                      pvoice->number,
1408                                      LBA,
1409                                      0, /* cso */
1410                                      ESO,
1411                                      Delta,
1412                                      0, /* alpha */
1413                                      GVSEL,
1414                                      PAN,
1415                                      VOL,
1416                                      CTRL,
1417                                      EC);
1418         if (evoice != NULL) {
1419                 evoice->count = pvoice->count;
1420                 evoice->eso = pvoice->count << 1;
1421                 ESO = evoice->eso - 1;
1422                 snd_ali_write_voice_regs(codec,
1423                                      evoice->number,
1424                                      LBA,
1425                                      0, /* cso */
1426                                      ESO,
1427                                      Delta,
1428                                      0, /* alpha */
1429                                      GVSEL,
1430                                      (unsigned int)0x7f,
1431                                      (unsigned int)0x3ff,
1432                                      CTRL,
1433                                      EC);
1434         }
1435         spin_unlock_irqrestore(&codec->reg_lock, flags);
1436         return 0;
1437 }
1438
1439
1440 static int snd_ali_capture_prepare(snd_pcm_substream_t * substream)
1441 {
1442         ali_t *codec = snd_pcm_substream_chip(substream);
1443         snd_pcm_runtime_t *runtime = substream->runtime;
1444         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1445         unsigned long flags;
1446         unsigned int LBA;
1447         unsigned int Delta;
1448         unsigned int ESO;
1449         unsigned int CTRL;
1450         unsigned int GVSEL;
1451         unsigned int PAN;
1452         unsigned int VOL;
1453         unsigned int EC;
1454         u8       bValue;
1455
1456         spin_lock_irqsave(&codec->reg_lock, flags);
1457
1458         snd_ali_printk("capture_prepare...\n");
1459
1460         snd_ali_enable_special_channel(codec,pvoice->number);
1461
1462         Delta = snd_ali_convert_rate(runtime->rate, 1);
1463
1464         // Prepare capture intr channel
1465         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1466
1467                 unsigned int rate;
1468
1469                 if (codec->revision != ALI_5451_V02) {
1470                         spin_unlock_irqrestore(&codec->reg_lock, flags);
1471                         return -1;
1472                 }
1473                 rate = snd_ali_get_spdif_in_rate(codec);
1474                 if (rate == 0) {
1475                         snd_printk("ali_capture_preapre: spdif rate detect err!\n");
1476                         rate = 48000;
1477                 }
1478                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1479                 if (bValue & 0x10) {
1480                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1481                         printk("clear SPDIF parity error flag.\n");
1482                 }
1483
1484                 if (rate != 48000)
1485                         Delta = ((rate << 12)/runtime->rate)&0x00ffff;
1486         }
1487
1488         // set target ESO for channel
1489         pvoice->eso = runtime->buffer_size;
1490
1491         // set interrupt count size
1492         pvoice->count = runtime->period_size;
1493
1494         // set Loop Back Address
1495         LBA = runtime->dma_addr;
1496
1497         // set ESO to capture first MIDLP interrupt
1498         ESO = pvoice->eso - 1;
1499         CTRL = snd_ali_control_mode(substream);
1500         GVSEL = 0;
1501         PAN = 0x00;
1502         VOL = 0x00;
1503         EC = 0;
1504
1505         snd_ali_write_voice_regs(    codec,
1506                                      pvoice->number,
1507                                      LBA,
1508                                      0, /* cso */
1509                                      ESO,
1510                                      Delta,
1511                                      0, /* alpha */
1512                                      GVSEL,
1513                                      PAN,
1514                                      VOL,
1515                                      CTRL,
1516                                      EC);
1517
1518
1519         spin_unlock_irqrestore(&codec->reg_lock, flags);
1520
1521         return 0;
1522 }
1523
1524
1525 static snd_pcm_uframes_t snd_ali_playback_pointer(snd_pcm_substream_t *substream)
1526 {
1527         ali_t *codec = snd_pcm_substream_chip(substream);
1528         snd_pcm_runtime_t *runtime = substream->runtime;
1529         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1530         unsigned int cso;
1531         unsigned long flags;
1532
1533         spin_lock_irqsave(&codec->reg_lock, flags);
1534         if (!pvoice->running) {
1535                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1536                 return 0;
1537         }
1538         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1539         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1540         spin_unlock_irqrestore(&codec->reg_lock, flags);
1541         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1542
1543         return cso;
1544 }
1545
1546
1547 static snd_pcm_uframes_t snd_ali_capture_pointer(snd_pcm_substream_t *substream)
1548 {
1549         ali_t *codec = snd_pcm_substream_chip(substream);
1550         snd_pcm_runtime_t *runtime = substream->runtime;
1551         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1552         unsigned int cso;
1553         unsigned long flags;
1554
1555         spin_lock_irqsave(&codec->reg_lock, flags);
1556         if (!pvoice->running) {
1557                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1558                 return 0;
1559         }
1560         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1561         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1562         spin_unlock_irqrestore(&codec->reg_lock, flags);
1563
1564         return cso;
1565 }
1566
1567 static snd_pcm_hardware_t snd_ali_playback =
1568 {
1569         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1570                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1571                                  SNDRV_PCM_INFO_MMAP_VALID |
1572                                  SNDRV_PCM_INFO_RESUME |
1573                                  SNDRV_PCM_INFO_SYNC_START),
1574         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1575                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1576         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1577         .rate_min =             4000,
1578         .rate_max =             48000,
1579         .channels_min =         1,
1580         .channels_max =         2,
1581         .buffer_bytes_max =     (256*1024),
1582         .period_bytes_min =     64,
1583         .period_bytes_max =     (256*1024),
1584         .periods_min =          1,
1585         .periods_max =          1024,
1586         .fifo_size =            0,
1587 };
1588
1589 /*
1590  *  Capture support device description
1591  */
1592
1593 static snd_pcm_hardware_t snd_ali_capture =
1594 {
1595         .info =                 (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1596                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1597                                  SNDRV_PCM_INFO_MMAP_VALID |
1598                                  SNDRV_PCM_INFO_RESUME |
1599                                  SNDRV_PCM_INFO_SYNC_START),
1600         .formats =              (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1601                                  SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1602         .rates =                SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1603         .rate_min =             4000,
1604         .rate_max =             48000,
1605         .channels_min =         1,
1606         .channels_max =         2,
1607         .buffer_bytes_max =     (128*1024),
1608         .period_bytes_min =     64,
1609         .period_bytes_max =     (128*1024),
1610         .periods_min =          1,
1611         .periods_max =          1024,
1612         .fifo_size =            0,
1613 };
1614
1615 static void snd_ali_pcm_free_substream(snd_pcm_runtime_t *runtime)
1616 {
1617         unsigned long flags;
1618         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1619         ali_t *codec;
1620
1621         if (pvoice) {
1622                 codec = pvoice->codec;
1623                 spin_lock_irqsave(&codec->reg_lock, flags);
1624                 snd_ali_free_voice(pvoice->codec, pvoice);
1625                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1626         }
1627 }
1628
1629 static int snd_ali_playback_open(snd_pcm_substream_t * substream)
1630 {
1631         ali_t *codec = snd_pcm_substream_chip(substream);
1632         snd_pcm_runtime_t *runtime = substream->runtime;
1633         snd_ali_voice_t *pvoice;
1634         unsigned long flags = 0;
1635
1636         spin_lock_irqsave(&codec->reg_lock, flags);
1637         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 0);
1638         if (pvoice == NULL) {
1639                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1640                 return -EAGAIN;
1641         }
1642         pvoice->codec = codec;
1643         spin_unlock_irqrestore(&codec->reg_lock, flags);
1644
1645         pvoice->substream = substream;
1646         runtime->private_data = pvoice;
1647         runtime->private_free = snd_ali_pcm_free_substream;
1648
1649         runtime->hw = snd_ali_playback;
1650         snd_pcm_set_sync(substream);
1651         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1652         return 0;
1653 }
1654
1655
1656 static int snd_ali_capture_open(snd_pcm_substream_t * substream)
1657 {
1658         ali_t *codec = snd_pcm_substream_chip(substream);
1659         snd_pcm_runtime_t *runtime = substream->runtime;
1660         snd_ali_voice_t *pvoice;
1661         unsigned long flags;
1662
1663         spin_lock_irqsave(&codec->reg_lock, flags);
1664         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, 1);
1665         if (pvoice == NULL) {
1666                 spin_unlock_irqrestore(&codec->reg_lock, flags);
1667                 return -EAGAIN;
1668         }
1669         pvoice->codec = codec;
1670         spin_unlock_irqrestore(&codec->reg_lock, flags);
1671
1672         pvoice->substream = substream;
1673         runtime->private_data = pvoice;
1674         runtime->private_free = snd_ali_pcm_free_substream;
1675         runtime->hw = snd_ali_capture;
1676         snd_pcm_set_sync(substream);
1677         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
1678         return 0;
1679 }
1680
1681
1682 static int snd_ali_playback_close(snd_pcm_substream_t * substream)
1683 {
1684         return 0;
1685 }
1686
1687 static int snd_ali_capture_close(snd_pcm_substream_t * substream)
1688 {
1689         ali_t *codec = snd_pcm_substream_chip(substream);
1690         snd_pcm_runtime_t *runtime = substream->runtime;
1691         snd_ali_voice_t *pvoice = (snd_ali_voice_t *) runtime->private_data;
1692
1693         snd_ali_disable_special_channel(codec,pvoice->number);
1694
1695         return 0;
1696 }
1697
1698 static snd_pcm_ops_t snd_ali_playback_ops = {
1699         .open =         snd_ali_playback_open,
1700         .close =        snd_ali_playback_close,
1701         .ioctl =        snd_ali_ioctl,
1702         .hw_params =    snd_ali_playback_hw_params,
1703         .hw_free =      snd_ali_playback_hw_free,
1704         .prepare =      snd_ali_playback_prepare,
1705         .trigger =      snd_ali_trigger,
1706         .pointer =      snd_ali_playback_pointer,
1707 };
1708
1709 static snd_pcm_ops_t snd_ali_capture_ops = {
1710         .open =         snd_ali_capture_open,
1711         .close =        snd_ali_capture_close,
1712         .ioctl =        snd_ali_ioctl,
1713         .hw_params =    snd_ali_capture_hw_params,
1714         .hw_free =      snd_ali_capture_hw_free,
1715         .prepare =      snd_ali_capture_prepare,
1716         .trigger =      snd_ali_trigger,
1717         .pointer =      snd_ali_capture_pointer,
1718 };
1719
1720
1721 static void snd_ali_pcm_free(snd_pcm_t *pcm)
1722 {
1723         ali_t *codec = snd_magic_cast(ali_t, pcm->private_data, return);
1724         codec->pcm = NULL;
1725 }
1726
1727 static int __devinit snd_ali_pcm(ali_t * codec, int device, snd_pcm_t ** rpcm)
1728 {
1729         snd_pcm_t *pcm;
1730         int err;
1731
1732         if (rpcm) *rpcm = NULL;
1733         err = snd_pcm_new(codec->card, "ALI 5451", device, ALI_CHANNELS, 1, &pcm);
1734         if (err < 0) {
1735                 snd_printk("snd_ali_pcm: err called snd_pcm_new.\n");
1736                 return err;
1737         }
1738         pcm->private_data = codec;
1739         pcm->private_free = snd_ali_pcm_free;
1740         pcm->info_flags = 0;
1741         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ali_playback_ops);
1742         snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ali_capture_ops);
1743
1744         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1745                                               snd_dma_pci_data(codec->pci), 64*1024, 128*1024);
1746
1747         pcm->info_flags = 0;
1748         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1749         strcpy(pcm->name, "ALI 5451");
1750         codec->pcm = pcm;
1751         if (rpcm) *rpcm = pcm;
1752         return 0;
1753 }
1754
1755 #define ALI5451_SPDIF(xname, xindex, value) \
1756 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1757 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1758 .put = snd_ali5451_spdif_put, .private_value = value}
1759
1760 static int snd_ali5451_spdif_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
1761 {
1762         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1763         uinfo->count = 1;
1764         uinfo->value.integer.min = 0;
1765         uinfo->value.integer.max = 1;
1766         return 0;
1767 }
1768
1769 static int snd_ali5451_spdif_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1770 {
1771         unsigned long flags;
1772         ali_t *codec = snd_magic_cast(ali_t, kcontrol->private_data, -ENXIO);
1773         unsigned int enable;
1774
1775         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1776
1777         spin_lock_irqsave(&codec->reg_lock, flags);
1778         switch(kcontrol->private_value) {
1779         case 0:
1780                 enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1781                 break;
1782         case 1:
1783                 enable = ((codec->spdif_mask & 0x02) && (codec->spdif_mask & 0x04)) ? 1 : 0;
1784                 break;
1785         case 2:
1786                 enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1787                 break;
1788         default:
1789                 break;
1790         }
1791         ucontrol->value.integer.value[0] = enable;
1792         spin_unlock_irqrestore(&codec->reg_lock, flags);
1793         return 0;
1794 }
1795
1796 static int snd_ali5451_spdif_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
1797 {
1798         unsigned long flags;
1799         ali_t *codec = snd_magic_cast(ali_t, kcontrol->private_data, -ENXIO);
1800         unsigned int change = 0, enable = 0;
1801
1802         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1803
1804         spin_lock_irqsave(&codec->reg_lock, flags);
1805         switch (kcontrol->private_value) {
1806         case 0:
1807                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1808                 change = change ^ enable;
1809                 if (change) {
1810                         if (enable) {
1811                                 codec->spdif_mask |= 0x02;
1812                                 snd_ali_enable_spdif_out(codec);
1813                         } else {
1814                                 codec->spdif_mask &= ~(0x02);
1815                                 codec->spdif_mask &= ~(0x04);
1816                                 snd_ali_disable_spdif_out(codec);
1817                         }
1818                 }
1819                 break;
1820         case 1:
1821                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1822                 change = change ^ enable;
1823                 if (change && (codec->spdif_mask & 0x02)) {
1824                         if (enable) {
1825                                 codec->spdif_mask |= 0x04;
1826                                 snd_ali_enable_spdif_chnout(codec);
1827                         } else {
1828                                 codec->spdif_mask &= ~(0x04);
1829                                 snd_ali_disable_spdif_chnout(codec);
1830                         }
1831                 }
1832                 break;
1833         case 2:
1834                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1835                 change = change ^ enable;
1836                 if (change) {
1837                         if (enable) {
1838                                 codec->spdif_mask |= 0x01;
1839                                 snd_ali_enable_spdif_in(codec);
1840                         } else {
1841                                 codec->spdif_mask &= ~(0x01);
1842                                 snd_ali_disable_spdif_in(codec);
1843                         }
1844                 }
1845                 break;
1846         default:
1847                 break;
1848         }
1849         spin_unlock_irqrestore(&codec->reg_lock, flags);
1850
1851         return change;
1852 }
1853
1854 static snd_kcontrol_new_t snd_ali5451_mixer_spdif[] __devinitdata = {
1855         /* spdif aplayback switch */
1856         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1857         ALI5451_SPDIF("IEC958 Output switch", 0, 0),
1858         /* spdif out to spdif channel */
1859         ALI5451_SPDIF("IEC958 Channel Output Switch", 0, 1),
1860         /* spdif in from spdif channel */
1861         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1862 };
1863
1864 static void snd_ali_mixer_free_ac97_bus(ac97_bus_t *bus)
1865 {
1866         ali_t *codec = snd_magic_cast(ali_t, bus->private_data, return);
1867         codec->ac97_bus = NULL;
1868 }
1869
1870 static void snd_ali_mixer_free_ac97(ac97_t *ac97)
1871 {
1872         ali_t *codec = snd_magic_cast(ali_t, ac97->private_data, return);
1873         codec->ac97 = NULL;
1874 }
1875
1876 static int __devinit snd_ali_mixer(ali_t * codec)
1877 {
1878         ac97_bus_t bus;
1879         ac97_t ac97;
1880         unsigned int idx;
1881         int err;
1882
1883         memset(&bus, 0, sizeof(bus));
1884         bus.write = snd_ali_codec_write;
1885         bus.read = snd_ali_codec_read;
1886         bus.private_data = codec;
1887         bus.private_free = snd_ali_mixer_free_ac97_bus;
1888         if ((err = snd_ac97_bus(codec->card, &bus, &codec->ac97_bus)) < 0)
1889                 return err;
1890
1891         memset(&ac97, 0, sizeof(ac97));
1892         ac97.private_data = codec;
1893         ac97.private_free = snd_ali_mixer_free_ac97;
1894         if ((err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97)) < 0) {
1895                 snd_printk("ali mixer creating error.\n");
1896                 return err;
1897         }
1898         if (codec->spdif_support) {
1899                 for(idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1900                         err=snd_ctl_add(codec->card, snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1901                         if (err < 0) return err;
1902                 }
1903         }
1904         return 0;
1905 }
1906
1907 #ifdef CONFIG_PM
1908 static int ali_suspend(snd_card_t *card, unsigned int state)
1909 {
1910         ali_t *chip = snd_magic_cast(ali_t, card->pm_private_data, return -EINVAL);
1911         ali_image_t *im;
1912         int i, j;
1913
1914         im = chip->image;
1915         if (! im)
1916                 return 0;
1917
1918         snd_pcm_suspend_all(chip->pcm);
1919         snd_ac97_suspend(chip->ac97);
1920
1921         spin_lock_irq(&chip->reg_lock);
1922
1923         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1924         // im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START));
1925         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1926
1927         // disable all IRQ bits
1928         outl(0, ALI_REG(chip, ALI_MISCINT));
1929
1930         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1931                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1932                         continue;
1933                 im->regs[i] = inl(ALI_REG(chip, i*4));
1934         }
1935
1936         for (i = 0; i < ALI_CHANNELS; i++) {
1937                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1938                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1939                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1940         }
1941
1942         // stop all HW channel
1943         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1944
1945         spin_unlock_irq(&chip->reg_lock);
1946         return 0;
1947 }
1948
1949 static int ali_resume(snd_card_t *card, unsigned int state)
1950 {
1951         ali_t *chip = snd_magic_cast(ali_t, card->pm_private_data, return -EINVAL);
1952         ali_image_t *im;
1953         int i, j;
1954
1955         im = chip->image;
1956         if (! im)
1957                 return 0;
1958
1959         pci_enable_device(chip->pci);
1960
1961         spin_lock_irq(&chip->reg_lock);
1962
1963         for (i = 0; i < ALI_CHANNELS; i++) {
1964                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1965                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1966                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1967         }
1968
1969         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1970                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) || (i*4 == ALI_START))
1971                         continue;
1972                 outl(im->regs[i], ALI_REG(chip, i*4));
1973         }
1974
1975         // start HW channel
1976         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1977         // restore IRQ enable bits
1978         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1979
1980         spin_unlock_irq(&chip->reg_lock);
1981
1982         snd_ac97_resume(chip->ac97);
1983
1984         return 0;
1985 }
1986 #endif /* CONFIG_PM */
1987
1988 static int snd_ali_free(ali_t * codec)
1989 {
1990         if (codec->hw_initialized)
1991                 snd_ali_disable_address_interrupt(codec);
1992         if (codec->irq >= 0) {
1993                 synchronize_irq(codec->irq);
1994                 free_irq(codec->irq, (void *)codec);
1995         }
1996         if (codec->res_port) {
1997                 release_resource(codec->res_port);
1998                 kfree_nocheck(codec->res_port);
1999         }
2000 #ifdef CONFIG_PM
2001         if (codec->image)
2002                 kfree(codec->image);
2003 #endif
2004         snd_magic_kfree(codec);
2005         return 0;
2006 }
2007
2008 static int snd_ali_chip_init(ali_t *codec)
2009 {
2010         unsigned int legacy;
2011         unsigned char temp;
2012         struct pci_dev *pci_dev = NULL;
2013
2014         snd_ali_printk("chip initializing ... \n");
2015
2016         if (snd_ali_reset_5451(codec)) {
2017                 snd_printk("ali_chip_init: reset 5451 error.\n");
2018                 return -1;
2019         }
2020
2021         if (codec->revision == ALI_5451_V02) {
2022                 pci_dev = codec->pci_m1533;
2023                 pci_read_config_byte(pci_dev, 0x59, &temp);
2024                 temp |= 0x80;
2025                 pci_write_config_byte(pci_dev, 0x59, temp);
2026
2027                 pci_dev = codec->pci_m7101;
2028                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2029                 temp |= 0x20;
2030                 pci_write_config_byte(pci_dev, 0xB8, temp);
2031         }
2032
2033         pci_read_config_dword(codec->pci, 0x44, &legacy);
2034         legacy &= 0xff00ff00;
2035         legacy |= 0x000800aa;
2036         pci_write_config_dword(codec->pci, 0x44, legacy);
2037
2038         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2039         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2040         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2041         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2042         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2043
2044         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2045         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_STATUS);
2046         if (codec->spdif_support) {
2047                 snd_ali_enable_spdif_out(codec);
2048                 codec->spdif_mask = 0x00000002;
2049         }
2050
2051         snd_ali_printk("chip initialize succeed.\n");
2052         return 0;
2053
2054 }
2055
2056 static int __devinit snd_ali_resources(ali_t *codec)
2057 {
2058         snd_ali_printk("resouces allocation ...\n");
2059         if ((codec->res_port = request_region(codec->port, 0x100, "ALI 5451")) == NULL) {
2060                 snd_printk("Unalbe to request io ports.\n");
2061                 return -EBUSY;
2062         }
2063
2064         if (request_irq(codec->pci->irq, snd_ali_card_interrupt, SA_INTERRUPT|SA_SHIRQ, "ALI 5451", (void *)codec)) {
2065                 snd_printk("Unable to request irq.\n");
2066                 return -EBUSY;
2067         }
2068         codec->irq = codec->pci->irq;
2069         snd_ali_printk("resouces allocated.\n");
2070         return 0;
2071 }
2072 static int snd_ali_dev_free(snd_device_t *device)
2073 {
2074         ali_t *codec=snd_magic_cast(ali_t, device->device_data, return -ENXIO);
2075         snd_ali_free(codec);
2076         return 0;
2077 }
2078
2079 static int __devinit snd_ali_create(snd_card_t * card,
2080                                     struct pci_dev *pci,
2081                                     int pcm_streams,
2082                                     int spdif_support,
2083                                     ali_t ** r_ali)
2084 {
2085         ali_t *codec;
2086         int i, err;
2087         unsigned short cmdw = 0;
2088         struct pci_dev *pci_dev = NULL;
2089         static snd_device_ops_t ops = {
2090                 (snd_dev_free_t *)snd_ali_dev_free,
2091                 NULL,
2092                 NULL
2093         };
2094
2095         *r_ali = NULL;
2096
2097         snd_ali_printk("creating ...\n");
2098
2099         /* enable PCI device */
2100         if ((err = pci_enable_device(pci)) < 0)
2101                 return err;
2102         /* check, if we can restrict PCI DMA transfers to 31 bits */
2103         if (pci_set_dma_mask(pci, 0x7fffffff) < 0 ||
2104             pci_set_consistent_dma_mask(pci, 0x7fffffff) < 0) {
2105                 snd_printk("architecture does not support 31bit PCI busmaster DMA\n");
2106                 return -ENXIO;
2107         }
2108
2109         if ((codec = snd_magic_kcalloc(ali_t, 0, GFP_KERNEL)) == NULL)
2110                 return -ENOMEM;
2111
2112         spin_lock_init(&codec->reg_lock);
2113         spin_lock_init(&codec->voice_alloc);
2114
2115         codec->card = card;
2116         codec->pci = pci;
2117         codec->irq = -1;
2118         codec->port = pci_resource_start(pci, 0);
2119         pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
2120         codec->spdif_support = spdif_support;
2121
2122         if (pcm_streams < 1)
2123                 pcm_streams = 1;
2124         if (pcm_streams > 32)
2125                 pcm_streams = 32;
2126
2127         pci_set_master(pci);
2128         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2129         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2130                 cmdw |= PCI_COMMAND_IO;
2131                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2132         }
2133         pci_set_master(pci);
2134
2135         if (snd_ali_resources(codec)) {
2136                 snd_ali_free(codec);
2137                 return -EBUSY;
2138         }
2139
2140         synchronize_irq(pci->irq);
2141
2142         codec->synth.chmap = 0;
2143         codec->synth.chcnt = 0;
2144         codec->spdif_mask = 0;
2145         codec->synth.synthcount = 0;
2146
2147         if (codec->revision == ALI_5451_V02)
2148                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2149         else
2150                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2151         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2152
2153         codec->chregs.regs.start  = ALI_START;
2154         codec->chregs.regs.stop   = ALI_STOP;
2155         codec->chregs.regs.aint   = ALI_AINT;
2156         codec->chregs.regs.ainten = ALI_AINTEN;
2157
2158         codec->chregs.data.start  = 0x00;
2159         codec->chregs.data.stop   = 0x00;
2160         codec->chregs.data.aint   = 0x00;
2161         codec->chregs.data.ainten = 0x00;
2162
2163         /* M1533: southbridge */
2164         pci_dev = pci_find_device(0x10b9, 0x1533, NULL);
2165         codec->pci_m1533 = pci_dev;
2166         if (! codec->pci_m1533) {
2167                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2168                 snd_ali_free(codec);
2169                 return -ENODEV;
2170         }
2171         /* M7101: power management */
2172         pci_dev = pci_find_device(0x10b9, 0x7101, NULL);
2173         codec->pci_m7101 = pci_dev;
2174         if (! codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2175                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2176                 snd_ali_free(codec);
2177                 return -ENODEV;
2178         }
2179
2180         snd_ali_printk("snd_device_new is called.\n");
2181         if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops)) < 0) {
2182                 snd_ali_free(codec);
2183                 return err;
2184         }
2185
2186         /* initialise synth voices*/
2187         for (i = 0; i < ALI_CHANNELS; i++ ) {
2188                 codec->synth.voices[i].number = i;
2189         }
2190
2191         if ((err = snd_ali_chip_init(codec)) < 0) {
2192                 snd_printk("ali create: chip init error.\n");
2193                 return err;
2194         }
2195
2196 #ifdef CONFIG_PM
2197         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2198         if (! codec->image)
2199                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2200         else
2201                 snd_card_set_pm_callback(card, ali_suspend, ali_resume, codec);
2202 #endif
2203
2204         snd_ali_enable_address_interrupt(codec);
2205         codec->hw_initialized = 1;
2206
2207         *r_ali = codec;
2208         snd_ali_printk("created.\n");
2209         return 0;
2210 }
2211
2212 static int __devinit snd_ali_probe(struct pci_dev *pci,
2213                                    const struct pci_device_id *pci_id)
2214 {
2215         static int dev;
2216         snd_card_t *card;
2217         ali_t *codec;
2218         int err;
2219
2220         snd_ali_printk("probe ...\n");
2221
2222         if (dev >= SNDRV_CARDS)
2223                 return -ENODEV;
2224         if (!enable[dev]) {
2225                 dev++;
2226                 return -ENOENT;
2227         }
2228
2229         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2230         if (card == NULL)
2231                 return -ENOMEM;
2232
2233         if ((err = snd_ali_create(card, pci, pcm_channels[dev], spdif[dev], &codec)) < 0) {
2234                 snd_card_free(card);
2235                 return err;
2236         }
2237
2238         snd_ali_printk("mixer building ...\n");
2239         if ((err = snd_ali_mixer(codec)) < 0) {
2240                 snd_card_free(card);
2241                 return err;
2242         }
2243
2244         snd_ali_printk("pcm building ...\n");
2245         if ((err = snd_ali_pcm(codec, 0, NULL)) < 0) {
2246                 snd_card_free(card);
2247                 return err;
2248         }
2249
2250         strcpy(card->driver, "ALI5451");
2251         strcpy(card->shortname, "ALI 5451");
2252
2253         sprintf(card->longname, "%s at 0x%lx, irq %li",
2254                 card->shortname, codec->port, codec->irq);
2255
2256         snd_ali_printk("register card.\n");
2257         if ((err = snd_card_register(card)) < 0) {
2258                 snd_card_free(card);
2259                 return err;
2260         }
2261         pci_set_drvdata(pci, card);
2262         dev++;
2263         return 0;
2264 }
2265
2266 static void __devexit snd_ali_remove(struct pci_dev *pci)
2267 {
2268         snd_card_free(pci_get_drvdata(pci));
2269         pci_set_drvdata(pci, NULL);
2270 }
2271
2272 static struct pci_driver driver = {
2273         .name = "ALI 5451",
2274         .id_table = snd_ali_ids,
2275         .probe = snd_ali_probe,
2276         .remove = __devexit_p(snd_ali_remove),
2277         SND_PCI_PM_CALLBACKS
2278 };
2279
2280 static int __init alsa_card_ali_init(void)
2281 {
2282         return pci_module_init(&driver);
2283 }
2284
2285 static void __exit alsa_card_ali_exit(void)
2286 {
2287         pci_unregister_driver(&driver);
2288 }
2289
2290 module_init(alsa_card_ali_init)
2291 module_exit(alsa_card_ali_exit)