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 <linux/dma-mapping.h>
  37 #include <sound/core.h>
  38 #include <sound/pcm.h>
  39 #include <sound/info.h>
  40 #include <sound/ac97_codec.h>
  41 #include <sound/mpu401.h>
  42 #include <sound/initval.h>
  43
  44 MODULE_AUTHOR("Matt Wu <Matt_Wu@acersoftech.com.cn>");
  45 MODULE_DESCRIPTION("ALI M5451");
  46 MODULE_LICENSE("GPL");
  47 MODULE_SUPPORTED_DEVICE("{{ALI,M5451,pci},{ALI,M5451}}");
  48
  49 static int index = SNDRV_DEFAULT_IDX1;  /* Index */
  50 static char *id = SNDRV_DEFAULT_STR1;   /* ID for this card */
  51 static int pcm_channels = 32;
  52 static int spdif;
  53
  54 module_param(index, int, 0444);
  55 MODULE_PARM_DESC(index, "Index value for ALI M5451 PCI Audio.");
  56 module_param(id, charp, 0444);
  57 MODULE_PARM_DESC(id, "ID string for ALI M5451 PCI Audio.");
  58 module_param(pcm_channels, int, 0444);
  59 MODULE_PARM_DESC(pcm_channels, "PCM Channels");
  60 module_param(spdif, bool, 0444);
  61 MODULE_PARM_DESC(spdif, "Support SPDIF I/O");
  62
  63 /* just for backward compatibility */
  64 static int enable;
  65 module_param(enable, bool, 0444);
  66
  67
  68 /*
  69  *  Debug part definitions
  70  */
  71
  72 /* #define ALI_DEBUG */
  73
  74 #ifdef ALI_DEBUG
  75 #define snd_ali_printk(format, args...) printk(KERN_DEBUG format, ##args);
  76 #else
  77 #define snd_ali_printk(format, args...)
  78 #endif
  79
  80 /*
  81  *  Constants definition
  82  */
  83
  84 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  85
  86
  87 #define ALI_CHANNELS            32
  88
  89 #define ALI_PCM_IN_CHANNEL      31
  90 #define ALI_SPDIF_IN_CHANNEL    19
  91 #define ALI_SPDIF_OUT_CHANNEL   15
  92 #define ALI_CENTER_CHANNEL      24
  93 #define ALI_LEF_CHANNEL         23
  94 #define ALI_SURR_LEFT_CHANNEL   26
  95 #define ALI_SURR_RIGHT_CHANNEL  25
  96 #define ALI_MODEM_IN_CHANNEL    21
  97 #define ALI_MODEM_OUT_CHANNEL   20
  98
  99 #define SNDRV_ALI_VOICE_TYPE_PCM        01
 100 #define SNDRV_ALI_VOICE_TYPE_OTH        02
 101
 102 #define ALI_5451_V02            0x02
 103
 104 /*
 105  *  Direct Registers
 106  */
 107
 108 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
 109 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
 110 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
 111 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
 112 #define ALI_MPUR0               0x20
 113 #define ALI_MPUR1               0x21
 114 #define ALI_MPUR2               0x22
 115 #define ALI_MPUR3               0x23
 116
 117 #define ALI_AC97_WRITE          0x40
 118 #define ALI_AC97_READ           0x44
 119
 120 #define ALI_SCTRL               0x48
 121 #define   ALI_SPDIF_OUT_ENABLE          0x20
 122 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
 123 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
 124 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
 125 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
 126 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
 127 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 128 #define ALI_AC97_GPIO           0x4c
 129 #define   ALI_AC97_GPIO_ENABLE          0x8000
 130 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 131 #define ALI_SPDIF_CS            0x70
 132 #define ALI_SPDIF_CTRL          0x74
 133 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 134 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 135 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 136 #define ALI_START               0x80
 137 #define ALI_STOP                0x84
 138 #define ALI_CSPF                0x90
 139 #define ALI_AINT                0x98
 140 #define ALI_GC_CIR              0xa0
 141         #define ENDLP_IE                0x00001000
 142         #define MIDLP_IE                0x00002000
 143 #define ALI_AINTEN              0xa4
 144 #define ALI_VOLUME              0xa8
 145 #define ALI_SBDELTA_DELTA_R     0xac
 146 #define ALI_MISCINT             0xb0
 147         #define ADDRESS_IRQ             0x00000020
 148         #define TARGET_REACHED          0x00008000
 149         #define MIXER_OVERFLOW          0x00000800
 150         #define MIXER_UNDERFLOW         0x00000400
 151         #define GPIO_IRQ                0x01000000
 152 #define ALI_SBBL_SBCL           0xc0
 153 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 154 #define ALI_STIMER              0xc8
 155 #define ALI_GLOBAL_CONTROL      0xd4
 156 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 157 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 158 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 159 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 160 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 161
 162 #define ALI_CSO_ALPHA_FMS       0xe0
 163 #define ALI_LBA                 0xe4
 164 #define ALI_ESO_DELTA           0xe8
 165 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 166 #define ALI_EBUF1               0xf4
 167 #define ALI_EBUF2               0xf8
 168
 169 #define ALI_REG(codec, x) ((codec)->port + x)
 170
 171 #define MAX_CODECS 2
 172
 173
 174 struct snd_ali;
 175 struct snd_ali_voice;
 176
 177 struct snd_ali_channel_control {
 178         /* register data */
 179         struct REGDATA {
 180                 unsigned int start;
 181                 unsigned int stop;
 182                 unsigned int aint;
 183                 unsigned int ainten;
 184         } data;
 185
 186         /* register addresses */
 187         struct REGS {
 188                 unsigned int start;
 189                 unsigned int stop;
 190                 unsigned int aint;
 191                 unsigned int ainten;
 192                 unsigned int ac97read;
 193                 unsigned int ac97write;
 194         } regs;
 195
 196 };
 197
 198 struct snd_ali_voice {
 199         unsigned int number;
 200         unsigned int use :1,
 201                 pcm :1,
 202                 midi :1,
 203                 mode :1,
 204                 synth :1,
 205                 running :1;
 206
 207         /* PCM data */
 208         struct snd_ali *codec;
 209         struct snd_pcm_substream *substream;
 210         struct snd_ali_voice *extra;
 211
 212         int eso;                /* final ESO value for channel */
 213         int count;              /* runtime->period_size */
 214
 215         /* --- */
 216
 217         void *private_data;
 218         void (*private_free)(void *private_data);
 219 };
 220
 221
 222 struct snd_alidev {
 223
 224         struct snd_ali_voice voices[ALI_CHANNELS];
 225
 226         unsigned int    chcnt;                  /* num of opened channels */
 227         unsigned int    chmap;                  /* bitmap for opened channels */
 228         unsigned int synthcount;
 229
 230 };
 231
 232
 233 #define ALI_GLOBAL_REGS         56
 234 #define ALI_CHANNEL_REGS        8
 235 struct snd_ali_image {
 236         u32 regs[ALI_GLOBAL_REGS];
 237         u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 238 };
 239
 240
 241 struct snd_ali {
 242         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         struct snd_card *card;
 254         struct snd_pcm  *pcm[MAX_CODECS];
 255         struct snd_alidev       synth;
 256         struct snd_ali_channel_control chregs;
 257
 258         /* S/PDIF Mask */
 259         unsigned int    spdif_mask;
 260
 261         unsigned int spurious_irq_count;
 262         unsigned int spurious_irq_max_delta;
 263
 264         unsigned int num_of_codecs;
 265
 266         struct snd_ac97_bus *ac97_bus;
 267         struct snd_ac97 *ac97[MAX_CODECS];
 268         unsigned short  ac97_ext_id;
 269         unsigned short  ac97_ext_status;
 270
 271         spinlock_t      reg_lock;
 272         spinlock_t      voice_alloc;
 273
 274 #ifdef CONFIG_PM
 275         struct snd_ali_image *image;
 276 #endif
 277 };
 278
 279 static struct pci_device_id snd_ali_ids[] = {
 280         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 281         {0, }
 282 };
 283 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 284
 285 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 286 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 287 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 288                                unsigned short);
 289
 290 /*
 291  *  AC97 ACCESS
 292  */
 293
 294 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 295                                              unsigned int port)
 296 {
 297         return (unsigned int)inl(ALI_REG(codec, port));
 298 }
 299
 300 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 301                                      unsigned int port,
 302                                      unsigned int val)
 303 {
 304         outl((unsigned int)val, ALI_REG(codec, port));
 305 }
 306
 307 static int snd_ali_codec_ready(struct snd_ali *codec,
 308                                unsigned int port)
 309 {
 310         unsigned long end_time;
 311         unsigned int res;
 312
 313         end_time = jiffies + msecs_to_jiffies(250);
 314         do {
 315                 res = snd_ali_5451_peek(codec,port);
 316                 if (!(res & 0x8000))
 317                         return 0;
 318                 schedule_timeout_uninterruptible(1);
 319         } while (time_after_eq(end_time, jiffies));
 320         snd_ali_5451_poke(codec, port, res & ~0x8000);
 321         snd_printdd("ali_codec_ready: codec is not ready.\n ");
 322         return -EIO;
 323 }
 324
 325 static int snd_ali_stimer_ready(struct snd_ali *codec)
 326 {
 327         unsigned long end_time;
 328         unsigned long dwChk1,dwChk2;
 329
 330         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 331         dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 332
 333         end_time = jiffies + msecs_to_jiffies(250);
 334         do {
 335                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 336                 if (dwChk2 != dwChk1)
 337                         return 0;
 338                 schedule_timeout_uninterruptible(1);
 339         } while (time_after_eq(end_time, jiffies));
 340         snd_printk(KERN_ERR "ali_stimer_read: stimer is not ready.\n");
 341         return -EIO;
 342 }
 343
 344 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 345                                unsigned short reg,
 346                                unsigned short val)
 347 {
 348         unsigned int dwVal;
 349         unsigned int port;
 350
 351         if (reg >= 0x80) {
 352                 snd_printk(KERN_ERR "ali_codec_poke: reg(%xh) invalid.\n", reg);
 353                 return;
 354         }
 355
 356         port = codec->chregs.regs.ac97write;
 357
 358         if (snd_ali_codec_ready(codec, port) < 0)
 359                 return;
 360         if (snd_ali_stimer_ready(codec) < 0)
 361                 return;
 362
 363         dwVal  = (unsigned int) (reg & 0xff);
 364         dwVal |= 0x8000 | (val << 16);
 365         if (secondary)
 366                 dwVal |= 0x0080;
 367         if (codec->revision == ALI_5451_V02)
 368                 dwVal |= 0x0100;
 369
 370         snd_ali_5451_poke(codec, port, dwVal);
 371
 372         return ;
 373 }
 374
 375 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 376                                          int secondary,
 377                                          unsigned short reg)
 378 {
 379         unsigned int dwVal;
 380         unsigned int port;
 381
 382         if (reg >= 0x80) {
 383                 snd_printk(KERN_ERR "ali_codec_peek: reg(%xh) invalid.\n", reg);
 384                 return ~0;
 385         }
 386
 387         port = codec->chregs.regs.ac97read;
 388
 389         if (snd_ali_codec_ready(codec, port) < 0)
 390                 return ~0;
 391         if (snd_ali_stimer_ready(codec) < 0)
 392                 return ~0;
 393
 394         dwVal  = (unsigned int) (reg & 0xff);
 395         dwVal |= 0x8000;                                /* bit 15*/
 396         if (secondary)
 397                 dwVal |= 0x0080;
 398
 399         snd_ali_5451_poke(codec, port, dwVal);
 400
 401         if (snd_ali_stimer_ready(codec) < 0)
 402                 return ~0;
 403         if (snd_ali_codec_ready(codec, port) < 0)
 404                 return ~0;
 405
 406         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 407 }
 408
 409 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 410                                 unsigned short reg,
 411                                 unsigned short val )
 412 {
 413         struct snd_ali *codec = ac97->private_data;
 414
 415         snd_ali_printk("codec_write: reg=%xh data=%xh.\n", reg, val);
 416         if (reg == AC97_GPIO_STATUS) {
 417                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 418                      ALI_REG(codec, ALI_AC97_GPIO));
 419                 return;
 420         }
 421         snd_ali_codec_poke(codec, ac97->num, reg, val);
 422         return ;
 423 }
 424
 425
 426 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 427                                          unsigned short reg)
 428 {
 429         struct snd_ali *codec = ac97->private_data;
 430
 431         snd_ali_printk("codec_read reg=%xh.\n", reg);
 432         return snd_ali_codec_peek(codec, ac97->num, reg);
 433 }
 434
 435 /*
 436  *      AC97 Reset
 437  */
 438
 439 static int snd_ali_reset_5451(struct snd_ali *codec)
 440 {
 441         struct pci_dev *pci_dev;
 442         unsigned short wCount, wReg;
 443         unsigned int   dwVal;
 444
 445         pci_dev = codec->pci_m1533;
 446         if (pci_dev) {
 447                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 448                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 449                 udelay(5000);
 450                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 451                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 452                 udelay(5000);
 453         }
 454
 455         pci_dev = codec->pci;
 456         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 457         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 458         udelay(500);
 459         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 460         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 461         udelay(5000);
 462
 463         wCount = 200;
 464         while(wCount--) {
 465                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 466                 if ((wReg & 0x000f) == 0x000f)
 467                         return 0;
 468                 udelay(5000);
 469         }
 470
 471         /* non-fatal if you have a non PM capable codec */
 472         /* snd_printk(KERN_WARNING "ali5451: reset time out\n"); */
 473         return 0;
 474 }
 475
 476 #ifdef CODEC_RESET
 477
 478 static int snd_ali_reset_codec(struct snd_ali *codec)
 479 {
 480         struct pci_dev *pci_dev;
 481         unsigned char bVal;
 482         unsigned int   dwVal;
 483         unsigned short wCount, wReg;
 484
 485         pci_dev = codec->pci_m1533;
 486
 487         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 488         pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 489         udelay(5000);
 490         pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 491         pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 492         udelay(5000);
 493
 494         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 495         bVal |= 0x02;
 496         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 497         udelay(5000);
 498         bVal = inb(ALI_REG(codec,ALI_SCTRL));
 499         bVal &= 0xfd;
 500         outb(ALI_REG(codec,ALI_SCTRL),bVal);
 501         udelay(15000);
 502
 503         wCount = 200;
 504         while (wCount--) {
 505                 wReg = snd_ali_codec_read(codec->ac97, AC97_POWERDOWN);
 506                 if ((wReg & 0x000f) == 0x000f)
 507                         return 0;
 508                 udelay(5000);
 509         }
 510         return -1;
 511 }
 512
 513 #endif
 514
 515 /*
 516  *  ALI 5451 Controller
 517  */
 518
 519 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 520                                            unsigned int channel)
 521 {
 522         unsigned long dwVal;
 523
 524         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 525         dwVal |= 1 << (channel & 0x0000001f);
 526         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 527 }
 528
 529 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 530                                             unsigned int channel)
 531 {
 532         unsigned long dwVal;
 533
 534         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 535         dwVal &= ~(1 << (channel & 0x0000001f));
 536         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 537 }
 538
 539 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 540 {
 541         unsigned int gc;
 542
 543         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 544         gc |= ENDLP_IE;
 545         gc |= MIDLP_IE;
 546         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 547 }
 548
 549 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 550 {
 551         unsigned int gc;
 552
 553         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 554         gc &= ~ENDLP_IE;
 555         gc &= ~MIDLP_IE;
 556         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 557 }
 558
 559 #if 0 /* not used */
 560 static void snd_ali_enable_voice_irq(struct snd_ali *codec,
 561                                      unsigned int channel)
 562 {
 563         unsigned int mask;
 564         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 565
 566         snd_ali_printk("enable_voice_irq channel=%d\n",channel);
 567
 568         mask = 1 << (channel & 0x1f);
 569         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 570         pchregs->data.ainten |= mask;
 571         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 572 }
 573 #endif
 574
 575 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 576                                       unsigned int channel)
 577 {
 578         unsigned int mask;
 579         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 580
 581         snd_ali_printk("disable_voice_irq channel=%d\n",channel);
 582
 583         mask = 1 << (channel & 0x1f);
 584         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 585         pchregs->data.ainten &= ~mask;
 586         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 587 }
 588
 589 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 590 {
 591         unsigned int idx =  channel & 0x1f;
 592
 593         if (codec->synth.chcnt >= ALI_CHANNELS){
 594                 snd_printk(KERN_ERR
 595                            "ali_alloc_pcm_channel: no free channels.\n");
 596                 return -1;
 597         }
 598
 599         if (!(codec->synth.chmap & (1 << idx))) {
 600                 codec->synth.chmap |= 1 << idx;
 601                 codec->synth.chcnt++;
 602                 snd_ali_printk("alloc_pcm_channel no. %d.\n",idx);
 603                 return idx;
 604         }
 605         return -1;
 606 }
 607
 608 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 609 {
 610         int idx;
 611         int result = -1;
 612
 613         snd_ali_printk("find_free_channel: for %s\n",rec ? "rec" : "pcm");
 614
 615         /* recording */
 616         if (rec) {
 617                 if (codec->spdif_support &&
 618                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 619                      ALI_SPDIF_IN_SUPPORT))
 620                         idx = ALI_SPDIF_IN_CHANNEL;
 621                 else
 622                         idx = ALI_PCM_IN_CHANNEL;
 623
 624                 result = snd_ali_alloc_pcm_channel(codec, idx);
 625                 if (result >= 0)
 626                         return result;
 627                 else {
 628                         snd_printk(KERN_ERR "ali_find_free_channel: "
 629                                    "record channel is busy now.\n");
 630                         return -1;
 631                 }
 632         }
 633
 634         /* playback... */
 635         if (codec->spdif_support &&
 636             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 637              ALI_SPDIF_OUT_CH_ENABLE)) {
 638                 idx = ALI_SPDIF_OUT_CHANNEL;
 639                 result = snd_ali_alloc_pcm_channel(codec, idx);
 640                 if (result >= 0)
 641                         return result;
 642                 else
 643                         snd_printk(KERN_ERR "ali_find_free_channel: "
 644                                    "S/PDIF out channel is in busy now.\n");
 645         }
 646
 647         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 648                 result = snd_ali_alloc_pcm_channel(codec, idx);
 649                 if (result >= 0)
 650                         return result;
 651         }
 652         snd_printk(KERN_ERR "ali_find_free_channel: no free channels.\n");
 653         return -1;
 654 }
 655
 656 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 657 {
 658         unsigned int idx = channel & 0x0000001f;
 659
 660         snd_ali_printk("free_channel_pcm channel=%d\n",channel);
 661
 662         if (channel < 0 || channel >= ALI_CHANNELS)
 663                 return;
 664
 665         if (!(codec->synth.chmap & (1 << idx))) {
 666                 snd_printk(KERN_ERR "ali_free_channel_pcm: "
 667                            "channel %d is not in use.\n", channel);
 668                 return;
 669         } else {
 670                 codec->synth.chmap &= ~(1 << idx);
 671                 codec->synth.chcnt--;
 672         }
 673 }
 674
 675 #if 0 /* not used */
 676 static void snd_ali_start_voice(struct snd_ali *codec, unsigned int channel)
 677 {
 678         unsigned int mask = 1 << (channel & 0x1f);
 679
 680         snd_ali_printk("start_voice: channel=%d\n",channel);
 681         outl(mask, ALI_REG(codec,codec->chregs.regs.start));
 682 }
 683 #endif
 684
 685 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 686 {
 687         unsigned int mask = 1 << (channel & 0x1f);
 688
 689         snd_ali_printk("stop_voice: channel=%d\n",channel);
 690         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 691 }
 692
 693 /*
 694  *    S/PDIF Part
 695  */
 696
 697 static void snd_ali_delay(struct snd_ali *codec,int interval)
 698 {
 699         unsigned long  begintimer,currenttimer;
 700
 701         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 702         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 703
 704         while (currenttimer < begintimer + interval) {
 705                 if (snd_ali_stimer_ready(codec) < 0)
 706                         break;
 707                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 708                 cpu_relax();
 709         }
 710 }
 711
 712 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 713 {
 714         u16 wval;
 715         u16 count = 0;
 716         u8  bval, R1 = 0, R2;
 717
 718         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 719         bval |= 0x1F;
 720         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 721
 722         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 723                 count ++;
 724                 snd_ali_delay(codec, 6);
 725                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 726                 R1 = bval & 0x1F;
 727         }
 728
 729         if (count > 50000) {
 730                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 731                 return;
 732         }
 733
 734         count = 0;
 735         while (count++ <= 50000) {
 736                 snd_ali_delay(codec, 6);
 737                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 738                 R2 = bval & 0x1F;
 739                 if (R2 != R1)
 740                         R1 = R2;
 741                 else
 742                         break;
 743         }
 744
 745         if (count > 50000) {
 746                 snd_printk(KERN_ERR "ali_detect_spdif_rate: timeout!\n");
 747                 return;
 748         }
 749
 750         if (R2 >= 0x0b && R2 <= 0x0e) {
 751                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 752                 wval &= 0xe0f0;
 753                 wval |= (0x09 << 8) | 0x05;
 754                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 755
 756                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 757                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 758         } else if (R2 == 0x12) {
 759                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 760                 wval &= 0xe0f0;
 761                 wval |= (0x0e << 8) | 0x08;
 762                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 763
 764                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 765                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 766         }
 767 }
 768
 769 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 770 {
 771         u32     dwRate;
 772         u8      bval;
 773
 774         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 775         bval &= 0x7f;
 776         bval |= 0x40;
 777         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 778
 779         snd_ali_detect_spdif_rate(codec);
 780
 781         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 782         bval &= 0x0f;
 783
 784         switch (bval) {
 785         case 0: dwRate = 44100; break;
 786         case 1: dwRate = 48000; break;
 787         case 2: dwRate = 32000; break;
 788         default: dwRate = 0; break;
 789         }
 790
 791         return dwRate;
 792 }
 793
 794 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 795 {
 796         unsigned int dwVal;
 797
 798         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 799         dwVal |= ALI_SPDIF_IN_SUPPORT;
 800         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 801
 802         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 803         dwVal |= 0x02;
 804         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 805
 806         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 807 }
 808
 809 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 810 {
 811         unsigned int dwVal;
 812
 813         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 814         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 815         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 816
 817         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 818 }
 819
 820
 821 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 822 {
 823         unsigned char  bVal;
 824         unsigned int  dwRate;
 825
 826         switch (rate) {
 827         case 32000: dwRate = 0x300; break;
 828         case 48000: dwRate = 0x200; break;
 829         default: dwRate = 0; break;
 830         }
 831
 832         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 833         bVal &= (unsigned char)(~(1<<6));
 834
 835         bVal |= 0x80;           /* select right */
 836         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 837         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 838
 839         bVal &= ~0x80;  /* select left */
 840         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 841         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 842 }
 843
 844 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 845 {
 846         unsigned short wVal;
 847         unsigned char bVal;
 848         struct pci_dev *pci_dev;
 849
 850         pci_dev = codec->pci_m1533;
 851         if (pci_dev == NULL)
 852                 return;
 853         pci_read_config_byte(pci_dev, 0x61, &bVal);
 854         bVal |= 0x40;
 855         pci_write_config_byte(pci_dev, 0x61, bVal);
 856         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 857         bVal |= 0x01;
 858         pci_write_config_byte(pci_dev, 0x7d, bVal);
 859
 860         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 861         bVal &= (~0x20);
 862         bVal |= 0x10;
 863         pci_write_config_byte(pci_dev, 0x7e, bVal);
 864
 865         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 866         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 867
 868         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 869         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 870
 871         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 872         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 873         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 874         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 875 }
 876
 877 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 878 {
 879         unsigned short wVal;
 880
 881         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 882         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 883         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 884 /*
 885         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 886         if (flag & ALI_SPDIF_OUT_NON_PCM)
 887                 wVal |= 0x0002;
 888         else
 889                 wVal &= (~0x0002);
 890         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 891 */
 892         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 893 }
 894
 895 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 896 {
 897         unsigned short wVal;
 898
 899         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 900         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 901         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 902
 903         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 904 }
 905
 906 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 907 {
 908         unsigned char  bVal;
 909
 910         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 911         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 912
 913         snd_ali_disable_spdif_chnout(codec);
 914 }
 915
 916 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 917 {
 918         struct snd_ali_voice *pvoice;
 919         struct snd_pcm_runtime *runtime;
 920         struct snd_ali_channel_control *pchregs;
 921         unsigned int old, mask;
 922 #ifdef ALI_DEBUG
 923         unsigned int temp, cspf;
 924 #endif
 925
 926         pchregs = &(codec->chregs);
 927
 928         /* check if interrupt occurred for channel */
 929         old  = pchregs->data.aint;
 930         mask = 1U << (channel & 0x1f);
 931
 932         if (!(old & mask))
 933                 return;
 934
 935         pvoice = &codec->synth.voices[channel];
 936         runtime = pvoice->substream->runtime;
 937
 938         udelay(100);
 939         spin_lock(&codec->reg_lock);
 940
 941         if (pvoice->pcm && pvoice->substream) {
 942                 /* pcm interrupt */
 943 #ifdef ALI_DEBUG
 944                 outb((u8)(pvoice->number), ALI_REG(codec, ALI_GC_CIR));
 945                 temp = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
 946                 cspf = (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask;
 947 #endif
 948                 if (pvoice->running) {
 949                         snd_ali_printk("update_ptr: cso=%4.4x cspf=%d.\n",
 950                                        (u16)temp, cspf);
 951                         spin_unlock(&codec->reg_lock);
 952                         snd_pcm_period_elapsed(pvoice->substream);
 953                         spin_lock(&codec->reg_lock);
 954                 } else {
 955                         snd_ali_stop_voice(codec, channel);
 956                         snd_ali_disable_voice_irq(codec, channel);
 957                 }
 958         } else if (codec->synth.voices[channel].synth) {
 959                 /* synth interrupt */
 960         } else if (codec->synth.voices[channel].midi) {
 961                 /* midi interrupt */
 962         } else {
 963                 /* unknown interrupt */
 964                 snd_ali_stop_voice(codec, channel);
 965                 snd_ali_disable_voice_irq(codec, channel);
 966         }
 967         spin_unlock(&codec->reg_lock);
 968         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 969         pchregs->data.aint = old & (~mask);
 970 }
 971
 972 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 973 {
 974         struct snd_ali  *codec = dev_id;
 975         int channel;
 976         unsigned int audio_int;
 977         struct snd_ali_channel_control *pchregs;
 978
 979         if (codec == NULL || !codec->hw_initialized)
 980                 return IRQ_NONE;
 981
 982         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 983         if (!audio_int)
 984                 return IRQ_NONE;
 985
 986         pchregs = &(codec->chregs);
 987         if (audio_int & ADDRESS_IRQ) {
 988                 /* get interrupt status for all channels */
 989                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 990                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 991                         snd_ali_update_ptr(codec, channel);
 992         }
 993         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 994                 ALI_REG(codec, ALI_MISCINT));
 995
 996         return IRQ_HANDLED;
 997 }
 998
 999
1000 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
1001                                                  int type, int rec, int channel)
1002 {
1003         struct snd_ali_voice *pvoice;
1004         int idx;
1005
1006         snd_ali_printk("alloc_voice: type=%d rec=%d\n", type, rec);
1007
1008         spin_lock_irq(&codec->voice_alloc);
1009         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
1010                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
1011                         snd_ali_find_free_channel(codec,rec);
1012                 if (idx < 0) {
1013                         snd_printk(KERN_ERR "ali_alloc_voice: err.\n");
1014                         spin_unlock_irq(&codec->voice_alloc);
1015                         return NULL;
1016                 }
1017                 pvoice = &(codec->synth.voices[idx]);
1018                 pvoice->codec = codec;
1019                 pvoice->use = 1;
1020                 pvoice->pcm = 1;
1021                 pvoice->mode = rec;
1022                 spin_unlock_irq(&codec->voice_alloc);
1023                 return pvoice;
1024         }
1025         spin_unlock_irq(&codec->voice_alloc);
1026         return NULL;
1027 }
1028
1029
1030 static void snd_ali_free_voice(struct snd_ali * codec,
1031                                struct snd_ali_voice *pvoice)
1032 {
1033         void (*private_free)(void *);
1034         void *private_data;
1035
1036         snd_ali_printk("free_voice: channel=%d\n",pvoice->number);
1037         if (pvoice == NULL || !pvoice->use)
1038                 return;
1039         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
1040         spin_lock_irq(&codec->voice_alloc);
1041         private_free = pvoice->private_free;
1042         private_data = pvoice->private_data;
1043         pvoice->private_free = NULL;
1044         pvoice->private_data = NULL;
1045         if (pvoice->pcm)
1046                 snd_ali_free_channel_pcm(codec, pvoice->number);
1047         pvoice->use = pvoice->pcm = pvoice->synth = 0;
1048         pvoice->substream = NULL;
1049         spin_unlock_irq(&codec->voice_alloc);
1050         if (private_free)
1051                 private_free(private_data);
1052 }
1053
1054
1055 static void snd_ali_clear_voices(struct snd_ali *codec,
1056                                  unsigned int v_min,
1057                                  unsigned int v_max)
1058 {
1059         unsigned int i;
1060
1061         for (i = v_min; i <= v_max; i++) {
1062                 snd_ali_stop_voice(codec, i);
1063                 snd_ali_disable_voice_irq(codec, i);
1064         }
1065 }
1066
1067 static void snd_ali_write_voice_regs(struct snd_ali *codec,
1068                          unsigned int Channel,
1069                          unsigned int LBA,
1070                          unsigned int CSO,
1071                          unsigned int ESO,
1072                          unsigned int DELTA,
1073                          unsigned int ALPHA_FMS,
1074                          unsigned int GVSEL,
1075                          unsigned int PAN,
1076                          unsigned int VOL,
1077                          unsigned int CTRL,
1078                          unsigned int EC)
1079 {
1080         unsigned int ctlcmds[4];
1081
1082         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1083
1084         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1085         ctlcmds[1] =  LBA;
1086         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1087         ctlcmds[3] =  (GVSEL << 31) |
1088                       ((PAN & 0x0000007f) << 24) |
1089                       ((VOL & 0x000000ff) << 16) |
1090                       ((CTRL & 0x0000000f) << 12) |
1091                       (EC & 0x00000fff);
1092
1093         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1094
1095         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1096         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1097         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1098         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1099
1100         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1101         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1102 }
1103
1104 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1105 {
1106         unsigned int delta;
1107
1108         if (rate < 4000)
1109                 rate = 4000;
1110         if (rate > 48000)
1111                 rate = 48000;
1112
1113         if (rec) {
1114                 if (rate == 44100)
1115                         delta = 0x116a;
1116                 else if (rate == 8000)
1117                         delta = 0x6000;
1118                 else if (rate == 48000)
1119                         delta = 0x1000;
1120                 else
1121                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1122         } else {
1123                 if (rate == 44100)
1124                         delta = 0xeb3;
1125                 else if (rate == 8000)
1126                         delta = 0x2ab;
1127                 else if (rate == 48000)
1128                         delta = 0x1000;
1129                 else
1130                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1131         }
1132
1133         return delta;
1134 }
1135
1136 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1137 {
1138         unsigned int CTRL;
1139         struct snd_pcm_runtime *runtime = substream->runtime;
1140
1141         /* set ctrl mode
1142            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1143          */
1144         CTRL = 0x00000001;
1145         if (snd_pcm_format_width(runtime->format) == 16)
1146                 CTRL |= 0x00000008;     /* 16-bit data */
1147         if (!snd_pcm_format_unsigned(runtime->format))
1148                 CTRL |= 0x00000002;     /* signed data */
1149         if (runtime->channels > 1)
1150                 CTRL |= 0x00000004;     /* stereo data */
1151         return CTRL;
1152 }
1153
1154 /*
1155  *  PCM part
1156  */
1157
1158 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1159                                int cmd)
1160
1161 {
1162         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1163         struct snd_pcm_substream *s;
1164         unsigned int what, whati, capture_flag;
1165         struct snd_ali_voice *pvoice, *evoice;
1166         unsigned int val;
1167         int do_start;
1168
1169         switch (cmd) {
1170         case SNDRV_PCM_TRIGGER_START:
1171         case SNDRV_PCM_TRIGGER_RESUME:
1172                 do_start = 1;
1173                 break;
1174         case SNDRV_PCM_TRIGGER_STOP:
1175         case SNDRV_PCM_TRIGGER_SUSPEND:
1176                 do_start = 0;
1177                 break;
1178         default:
1179                 return -EINVAL;
1180         }
1181
1182         what = whati = capture_flag = 0;
1183         snd_pcm_group_for_each_entry(s, substream) {
1184                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1185                         pvoice = s->runtime->private_data;
1186                         evoice = pvoice->extra;
1187                         what |= 1 << (pvoice->number & 0x1f);
1188                         if (evoice == NULL)
1189                                 whati |= 1 << (pvoice->number & 0x1f);
1190                         else {
1191                                 whati |= 1 << (evoice->number & 0x1f);
1192                                 what |= 1 << (evoice->number & 0x1f);
1193                         }
1194                         if (do_start) {
1195                                 pvoice->running = 1;
1196                                 if (evoice != NULL)
1197                                         evoice->running = 1;
1198                         } else {
1199                                 pvoice->running = 0;
1200                                 if (evoice != NULL)
1201                                         evoice->running = 0;
1202                         }
1203                         snd_pcm_trigger_done(s, substream);
1204                         if (pvoice->mode)
1205                                 capture_flag = 1;
1206                 }
1207         }
1208         spin_lock(&codec->reg_lock);
1209         if (!do_start)
1210                 outl(what, ALI_REG(codec, ALI_STOP));
1211         val = inl(ALI_REG(codec, ALI_AINTEN));
1212         if (do_start)
1213                 val |= whati;
1214         else
1215                 val &= ~whati;
1216         outl(val, ALI_REG(codec, ALI_AINTEN));
1217         if (do_start)
1218                 outl(what, ALI_REG(codec, ALI_START));
1219         snd_ali_printk("trigger: what=%xh whati=%xh\n", what, whati);
1220         spin_unlock(&codec->reg_lock);
1221
1222         return 0;
1223 }
1224
1225 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1226                                       struct snd_pcm_hw_params *hw_params)
1227 {
1228         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1229         struct snd_pcm_runtime *runtime = substream->runtime;
1230         struct snd_ali_voice *pvoice = runtime->private_data;
1231         struct snd_ali_voice *evoice = pvoice->extra;
1232         int err;
1233
1234         err = snd_pcm_lib_malloc_pages(substream,
1235                                        params_buffer_bytes(hw_params));
1236         if (err < 0)
1237                 return err;
1238
1239         /* voice management */
1240
1241         if (params_buffer_size(hw_params) / 2 !=
1242             params_period_size(hw_params)) {
1243                 if (!evoice) {
1244                         evoice = snd_ali_alloc_voice(codec,
1245                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1246                                                      0, -1);
1247                         if (!evoice)
1248                                 return -ENOMEM;
1249                         pvoice->extra = evoice;
1250                         evoice->substream = substream;
1251                 }
1252         } else {
1253                 if (evoice) {
1254                         snd_ali_free_voice(codec, evoice);
1255                         pvoice->extra = evoice = NULL;
1256                 }
1257         }
1258
1259         return 0;
1260 }
1261
1262 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1263 {
1264         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1265         struct snd_pcm_runtime *runtime = substream->runtime;
1266         struct snd_ali_voice *pvoice = runtime->private_data;
1267         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1268
1269         snd_pcm_lib_free_pages(substream);
1270         if (evoice) {
1271                 snd_ali_free_voice(codec, evoice);
1272                 pvoice->extra = NULL;
1273         }
1274         return 0;
1275 }
1276
1277 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1278                              struct snd_pcm_hw_params *hw_params)
1279 {
1280         return snd_pcm_lib_malloc_pages(substream,
1281                                         params_buffer_bytes(hw_params));
1282 }
1283
1284 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1285 {
1286         return snd_pcm_lib_free_pages(substream);
1287 }
1288
1289 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1290 {
1291         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1292         struct snd_pcm_runtime *runtime = substream->runtime;
1293         struct snd_ali_voice *pvoice = runtime->private_data;
1294         struct snd_ali_voice *evoice = pvoice->extra;
1295
1296         unsigned int LBA;
1297         unsigned int Delta;
1298         unsigned int ESO;
1299         unsigned int CTRL;
1300         unsigned int GVSEL;
1301         unsigned int PAN;
1302         unsigned int VOL;
1303         unsigned int EC;
1304
1305         snd_ali_printk("playback_prepare ...\n");
1306
1307         spin_lock_irq(&codec->reg_lock);
1308
1309         /* set Delta (rate) value */
1310         Delta = snd_ali_convert_rate(runtime->rate, 0);
1311
1312         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1313             pvoice->number == ALI_PCM_IN_CHANNEL)
1314                 snd_ali_disable_special_channel(codec, pvoice->number);
1315         else if (codec->spdif_support &&
1316                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1317                   ALI_SPDIF_OUT_CH_ENABLE)
1318                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1319                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1320                 Delta = 0x1000;
1321         }
1322
1323         /* set Loop Back Address */
1324         LBA = runtime->dma_addr;
1325
1326         /* set interrupt count size */
1327         pvoice->count = runtime->period_size;
1328
1329         /* set target ESO for channel */
1330         pvoice->eso = runtime->buffer_size;
1331
1332         snd_ali_printk("playback_prepare: eso=%xh count=%xh\n",
1333                        pvoice->eso, pvoice->count);
1334
1335         /* set ESO to capture first MIDLP interrupt */
1336         ESO = pvoice->eso -1;
1337         /* set ctrl mode */
1338         CTRL = snd_ali_control_mode(substream);
1339
1340         GVSEL = 1;
1341         PAN = 0;
1342         VOL = 0;
1343         EC = 0;
1344         snd_ali_printk("playback_prepare:\n");
1345         snd_ali_printk("ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1346                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1347         snd_ali_write_voice_regs(codec,
1348                                  pvoice->number,
1349                                  LBA,
1350                                  0,     /* cso */
1351                                  ESO,
1352                                  Delta,
1353                                  0,     /* alpha */
1354                                  GVSEL,
1355                                  PAN,
1356                                  VOL,
1357                                  CTRL,
1358                                  EC);
1359         if (evoice) {
1360                 evoice->count = pvoice->count;
1361                 evoice->eso = pvoice->count << 1;
1362                 ESO = evoice->eso - 1;
1363                 snd_ali_write_voice_regs(codec,
1364                                          evoice->number,
1365                                          LBA,
1366                                          0,     /* cso */
1367                                          ESO,
1368                                          Delta,
1369                                          0,     /* alpha */
1370                                          GVSEL,
1371                                          0x7f,
1372                                          0x3ff,
1373                                          CTRL,
1374                                          EC);
1375         }
1376         spin_unlock_irq(&codec->reg_lock);
1377         return 0;
1378 }
1379
1380
1381 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1382 {
1383         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1384         struct snd_pcm_runtime *runtime = substream->runtime;
1385         struct snd_ali_voice *pvoice = runtime->private_data;
1386         unsigned int LBA;
1387         unsigned int Delta;
1388         unsigned int ESO;
1389         unsigned int CTRL;
1390         unsigned int GVSEL;
1391         unsigned int PAN;
1392         unsigned int VOL;
1393         unsigned int EC;
1394         u8       bValue;
1395
1396         spin_lock_irq(&codec->reg_lock);
1397
1398         snd_ali_printk("ali_prepare...\n");
1399
1400         snd_ali_enable_special_channel(codec,pvoice->number);
1401
1402         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1403                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1404                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1405
1406         /* Prepare capture intr channel */
1407         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1408
1409                 unsigned int rate;
1410
1411                 spin_unlock_irq(&codec->reg_lock);
1412                 if (codec->revision != ALI_5451_V02)
1413                         return -1;
1414
1415                 rate = snd_ali_get_spdif_in_rate(codec);
1416                 if (rate == 0) {
1417                         snd_printk(KERN_WARNING "ali_capture_preapre: "
1418                                    "spdif rate detect err!\n");
1419                         rate = 48000;
1420                 }
1421                 spin_lock_irq(&codec->reg_lock);
1422                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1423                 if (bValue & 0x10) {
1424                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1425                         printk(KERN_WARNING "clear SPDIF parity error flag.\n");
1426                 }
1427
1428                 if (rate != 48000)
1429                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1430         }
1431
1432         /* set target ESO for channel  */
1433         pvoice->eso = runtime->buffer_size;
1434
1435         /* set interrupt count size  */
1436         pvoice->count = runtime->period_size;
1437
1438         /* set Loop Back Address  */
1439         LBA = runtime->dma_addr;
1440
1441         /* set ESO to capture first MIDLP interrupt  */
1442         ESO = pvoice->eso - 1;
1443         CTRL = snd_ali_control_mode(substream);
1444         GVSEL = 0;
1445         PAN = 0x00;
1446         VOL = 0x00;
1447         EC = 0;
1448
1449         snd_ali_write_voice_regs(    codec,
1450                                      pvoice->number,
1451                                      LBA,
1452                                      0, /* cso */
1453                                      ESO,
1454                                      Delta,
1455                                      0, /* alpha */
1456                                      GVSEL,
1457                                      PAN,
1458                                      VOL,
1459                                      CTRL,
1460                                      EC);
1461
1462         spin_unlock_irq(&codec->reg_lock);
1463
1464         return 0;
1465 }
1466
1467
1468 static snd_pcm_uframes_t
1469 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1470 {
1471         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1472         struct snd_pcm_runtime *runtime = substream->runtime;
1473         struct snd_ali_voice *pvoice = runtime->private_data;
1474         unsigned int cso;
1475
1476         spin_lock(&codec->reg_lock);
1477         if (!pvoice->running) {
1478                 spin_unlock(&codec->reg_lock);
1479                 return 0;
1480         }
1481         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1482         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1483         spin_unlock(&codec->reg_lock);
1484         snd_ali_printk("playback pointer returned cso=%xh.\n", cso);
1485
1486         return cso;
1487 }
1488
1489
1490 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1491 {
1492         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1493         struct snd_pcm_runtime *runtime = substream->runtime;
1494         struct snd_ali_voice *pvoice = runtime->private_data;
1495         unsigned int cso;
1496
1497         spin_lock(&codec->reg_lock);
1498         if (!pvoice->running) {
1499                 spin_unlock_irq(&codec->reg_lock);
1500                 return 0;
1501         }
1502         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1503         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1504         spin_unlock(&codec->reg_lock);
1505
1506         return cso;
1507 }
1508
1509 static struct snd_pcm_hardware snd_ali_playback =
1510 {
1511         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1512                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1513                          SNDRV_PCM_INFO_MMAP_VALID |
1514                          SNDRV_PCM_INFO_RESUME |
1515                          SNDRV_PCM_INFO_SYNC_START),
1516         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1517                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1518         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1519         .rate_min =             4000,
1520         .rate_max =             48000,
1521         .channels_min =         1,
1522         .channels_max =         2,
1523         .buffer_bytes_max =     (256*1024),
1524         .period_bytes_min =     64,
1525         .period_bytes_max =     (256*1024),
1526         .periods_min =          1,
1527         .periods_max =          1024,
1528         .fifo_size =            0,
1529 };
1530
1531 /*
1532  *  Capture support device description
1533  */
1534
1535 static struct snd_pcm_hardware snd_ali_capture =
1536 {
1537         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1538                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1539                          SNDRV_PCM_INFO_MMAP_VALID |
1540                          SNDRV_PCM_INFO_RESUME |
1541                          SNDRV_PCM_INFO_SYNC_START),
1542         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1543                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1544         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1545         .rate_min =             4000,
1546         .rate_max =             48000,
1547         .channels_min =         1,
1548         .channels_max =         2,
1549         .buffer_bytes_max =     (128*1024),
1550         .period_bytes_min =     64,
1551         .period_bytes_max =     (128*1024),
1552         .periods_min =          1,
1553         .periods_max =          1024,
1554         .fifo_size =            0,
1555 };
1556
1557 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1558 {
1559         struct snd_ali_voice *pvoice = runtime->private_data;
1560         struct snd_ali *codec;
1561
1562         if (pvoice) {
1563                 codec = pvoice->codec;
1564                 snd_ali_free_voice(pvoice->codec, pvoice);
1565         }
1566 }
1567
1568 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1569                         int channel, struct snd_pcm_hardware *phw)
1570 {
1571         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1572         struct snd_pcm_runtime *runtime = substream->runtime;
1573         struct snd_ali_voice *pvoice;
1574
1575         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1576                                      channel);
1577         if (!pvoice)
1578                 return -EAGAIN;
1579
1580         pvoice->substream = substream;
1581         runtime->private_data = pvoice;
1582         runtime->private_free = snd_ali_pcm_free_substream;
1583
1584         runtime->hw = *phw;
1585         snd_pcm_set_sync(substream);
1586         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1587                                      0, 64*1024);
1588         return 0;
1589 }
1590
1591 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1592 {
1593         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1594 }
1595
1596 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1597 {
1598         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1599 }
1600
1601 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1602 {
1603         return 0;
1604 }
1605
1606 static int snd_ali_close(struct snd_pcm_substream *substream)
1607 {
1608         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1609         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1610
1611         snd_ali_disable_special_channel(codec,pvoice->number);
1612
1613         return 0;
1614 }
1615
1616 static struct snd_pcm_ops snd_ali_playback_ops = {
1617         .open =         snd_ali_playback_open,
1618         .close =        snd_ali_playback_close,
1619         .ioctl =        snd_pcm_lib_ioctl,
1620         .hw_params =    snd_ali_playback_hw_params,
1621         .hw_free =      snd_ali_playback_hw_free,
1622         .prepare =      snd_ali_playback_prepare,
1623         .trigger =      snd_ali_trigger,
1624         .pointer =      snd_ali_playback_pointer,
1625 };
1626
1627 static struct snd_pcm_ops snd_ali_capture_ops = {
1628         .open =         snd_ali_capture_open,
1629         .close =        snd_ali_close,
1630         .ioctl =        snd_pcm_lib_ioctl,
1631         .hw_params =    snd_ali_hw_params,
1632         .hw_free =      snd_ali_hw_free,
1633         .prepare =      snd_ali_prepare,
1634         .trigger =      snd_ali_trigger,
1635         .pointer =      snd_ali_pointer,
1636 };
1637
1638 /*
1639  * Modem PCM
1640  */
1641
1642 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1643                                  struct snd_pcm_hw_params *hw_params)
1644 {
1645         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1646         unsigned int modem_num = chip->num_of_codecs - 1;
1647         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1648                        params_rate(hw_params));
1649         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1650         return snd_ali_hw_params(substream, hw_params);
1651 }
1652
1653 static struct snd_pcm_hardware snd_ali_modem =
1654 {
1655         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1656                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1657                          SNDRV_PCM_INFO_MMAP_VALID |
1658                          SNDRV_PCM_INFO_RESUME |
1659                          SNDRV_PCM_INFO_SYNC_START),
1660         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1661         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1662                          SNDRV_PCM_RATE_16000),
1663         .rate_min =             8000,
1664         .rate_max =             16000,
1665         .channels_min =         1,
1666         .channels_max =         1,
1667         .buffer_bytes_max =     (256*1024),
1668         .period_bytes_min =     64,
1669         .period_bytes_max =     (256*1024),
1670         .periods_min =          1,
1671         .periods_max =          1024,
1672         .fifo_size =            0,
1673 };
1674
1675 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1676                               int channel)
1677 {
1678         static unsigned int rates[] = {8000, 9600, 12000, 16000};
1679         static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1680                 .count = ARRAY_SIZE(rates),
1681                 .list = rates,
1682                 .mask = 0,
1683         };
1684         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1685
1686         if (err)
1687                 return err;
1688         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1689                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1690 }
1691
1692 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1693 {
1694         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1695 }
1696
1697 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1698 {
1699         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1700 }
1701
1702 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1703         .open =         snd_ali_modem_playback_open,
1704         .close =        snd_ali_close,
1705         .ioctl =        snd_pcm_lib_ioctl,
1706         .hw_params =    snd_ali_modem_hw_params,
1707         .hw_free =      snd_ali_hw_free,
1708         .prepare =      snd_ali_prepare,
1709         .trigger =      snd_ali_trigger,
1710         .pointer =      snd_ali_pointer,
1711 };
1712
1713 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1714         .open =         snd_ali_modem_capture_open,
1715         .close =        snd_ali_close,
1716         .ioctl =        snd_pcm_lib_ioctl,
1717         .hw_params =    snd_ali_modem_hw_params,
1718         .hw_free =      snd_ali_hw_free,
1719         .prepare =      snd_ali_prepare,
1720         .trigger =      snd_ali_trigger,
1721         .pointer =      snd_ali_pointer,
1722 };
1723
1724
1725 struct ali_pcm_description {
1726         char *name;
1727         unsigned int playback_num;
1728         unsigned int capture_num;
1729         struct snd_pcm_ops *playback_ops;
1730         struct snd_pcm_ops *capture_ops;
1731         unsigned short class;
1732 };
1733
1734
1735 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1736 {
1737         struct snd_ali *codec = pcm->private_data;
1738         codec->pcm[pcm->device] = NULL;
1739 }
1740
1741
1742 static int __devinit snd_ali_pcm(struct snd_ali * codec, int device,
1743                                  struct ali_pcm_description *desc)
1744 {
1745         struct snd_pcm *pcm;
1746         int err;
1747
1748         err = snd_pcm_new(codec->card, desc->name, device,
1749                           desc->playback_num, desc->capture_num, &pcm);
1750         if (err < 0) {
1751                 snd_printk(KERN_ERR "snd_ali_pcm: err called snd_pcm_new.\n");
1752                 return err;
1753         }
1754         pcm->private_data = codec;
1755         pcm->private_free = snd_ali_pcm_free;
1756         if (desc->playback_ops)
1757                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1758                                 desc->playback_ops);
1759         if (desc->capture_ops)
1760                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1761                                 desc->capture_ops);
1762
1763         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1764                                               snd_dma_pci_data(codec->pci),
1765                                               64*1024, 128*1024);
1766
1767         pcm->info_flags = 0;
1768         pcm->dev_class = desc->class;
1769         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1770         strcpy(pcm->name, desc->name);
1771         codec->pcm[0] = pcm;
1772         return 0;
1773 }
1774
1775 static struct ali_pcm_description ali_pcms[] = {
1776         { .name = "ALI 5451",
1777           .playback_num = ALI_CHANNELS,
1778           .capture_num = 1,
1779           .playback_ops = &snd_ali_playback_ops,
1780           .capture_ops = &snd_ali_capture_ops
1781         },
1782         { .name = "ALI 5451 modem",
1783           .playback_num = 1,
1784           .capture_num = 1,
1785           .playback_ops = &snd_ali_modem_playback_ops,
1786           .capture_ops = &snd_ali_modem_capture_ops,
1787           .class = SNDRV_PCM_CLASS_MODEM
1788         }
1789 };
1790
1791 static int __devinit snd_ali_build_pcms(struct snd_ali *codec)
1792 {
1793         int i, err;
1794         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1795                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1796                 if (err < 0)
1797                         return err;
1798         }
1799         return 0;
1800 }
1801
1802
1803 #define ALI5451_SPDIF(xname, xindex, value) \
1804 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1805 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1806 .put = snd_ali5451_spdif_put, .private_value = value}
1807
1808 static int snd_ali5451_spdif_info(struct snd_kcontrol *kcontrol,
1809                                   struct snd_ctl_elem_info *uinfo)
1810 {
1811         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1812         uinfo->count = 1;
1813         uinfo->value.integer.min = 0;
1814         uinfo->value.integer.max = 1;
1815         return 0;
1816 }
1817
1818 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1819                                  struct snd_ctl_elem_value *ucontrol)
1820 {
1821         struct snd_ali *codec = kcontrol->private_data;
1822         unsigned int enable;
1823
1824         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1825
1826         spin_lock_irq(&codec->reg_lock);
1827         switch (kcontrol->private_value) {
1828         case 0:
1829                 enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1830                 break;
1831         case 1:
1832                 enable = ((codec->spdif_mask & 0x02) &&
1833                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1834                 break;
1835         case 2:
1836                 enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1837                 break;
1838         default:
1839                 break;
1840         }
1841         ucontrol->value.integer.value[0] = enable;
1842         spin_unlock_irq(&codec->reg_lock);
1843         return 0;
1844 }
1845
1846 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1847                                  struct snd_ctl_elem_value *ucontrol)
1848 {
1849         struct snd_ali *codec = kcontrol->private_data;
1850         unsigned int change = 0, enable = 0;
1851
1852         enable = ucontrol->value.integer.value[0] ? 1 : 0;
1853
1854         spin_lock_irq(&codec->reg_lock);
1855         switch (kcontrol->private_value) {
1856         case 0:
1857                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1858                 change = change ^ enable;
1859                 if (change) {
1860                         if (enable) {
1861                                 codec->spdif_mask |= 0x02;
1862                                 snd_ali_enable_spdif_out(codec);
1863                         } else {
1864                                 codec->spdif_mask &= ~(0x02);
1865                                 codec->spdif_mask &= ~(0x04);
1866                                 snd_ali_disable_spdif_out(codec);
1867                         }
1868                 }
1869                 break;
1870         case 1:
1871                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1872                 change = change ^ enable;
1873                 if (change && (codec->spdif_mask & 0x02)) {
1874                         if (enable) {
1875                                 codec->spdif_mask |= 0x04;
1876                                 snd_ali_enable_spdif_chnout(codec);
1877                         } else {
1878                                 codec->spdif_mask &= ~(0x04);
1879                                 snd_ali_disable_spdif_chnout(codec);
1880                         }
1881                 }
1882                 break;
1883         case 2:
1884                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1885                 change = change ^ enable;
1886                 if (change) {
1887                         if (enable) {
1888                                 codec->spdif_mask |= 0x01;
1889                                 snd_ali_enable_spdif_in(codec);
1890                         } else {
1891                                 codec->spdif_mask &= ~(0x01);
1892                                 snd_ali_disable_spdif_in(codec);
1893                         }
1894                 }
1895                 break;
1896         default:
1897                 break;
1898         }
1899         spin_unlock_irq(&codec->reg_lock);
1900
1901         return change;
1902 }
1903
1904 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] __devinitdata = {
1905         /* spdif aplayback switch */
1906         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1907         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1908         /* spdif out to spdif channel */
1909         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1910         /* spdif in from spdif channel */
1911         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1912 };
1913
1914 static int __devinit snd_ali_mixer(struct snd_ali * codec)
1915 {
1916         struct snd_ac97_template ac97;
1917         unsigned int idx;
1918         int i, err;
1919         static struct snd_ac97_bus_ops ops = {
1920                 .write = snd_ali_codec_write,
1921                 .read = snd_ali_codec_read,
1922         };
1923
1924         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1925         if (err < 0)
1926                 return err;
1927
1928         memset(&ac97, 0, sizeof(ac97));
1929         ac97.private_data = codec;
1930
1931         for (i = 0; i < codec->num_of_codecs; i++) {
1932                 ac97.num = i;
1933                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1934                 if (err < 0) {
1935                         snd_printk(KERN_ERR
1936                                    "ali mixer %d creating error.\n", i);
1937                         if (i == 0)
1938                                 return err;
1939                         codec->num_of_codecs = 1;
1940                         break;
1941                 }
1942         }
1943
1944         if (codec->spdif_support) {
1945                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1946                         err = snd_ctl_add(codec->card,
1947                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1948                         if (err < 0)
1949                                 return err;
1950                 }
1951         }
1952         return 0;
1953 }
1954
1955 #ifdef CONFIG_PM
1956 static int ali_suspend(struct pci_dev *pci, pm_message_t state)
1957 {
1958         struct snd_card *card = pci_get_drvdata(pci);
1959         struct snd_ali *chip = card->private_data;
1960         struct snd_ali_image *im;
1961         int i, j;
1962
1963         im = chip->image;
1964         if (!im)
1965                 return 0;
1966
1967         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1968         for (i = 0; i < chip->num_of_codecs; i++) {
1969                 snd_pcm_suspend_all(chip->pcm[i]);
1970                 snd_ac97_suspend(chip->ac97[i]);
1971         }
1972
1973         spin_lock_irq(&chip->reg_lock);
1974
1975         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1976         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1977         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1978
1979         /* disable all IRQ bits */
1980         outl(0, ALI_REG(chip, ALI_MISCINT));
1981
1982         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1983                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1984                         continue;
1985                 im->regs[i] = inl(ALI_REG(chip, i*4));
1986         }
1987
1988         for (i = 0; i < ALI_CHANNELS; i++) {
1989                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1990                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1991                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1992         }
1993
1994         /* stop all HW channel */
1995         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1996
1997         spin_unlock_irq(&chip->reg_lock);
1998
1999         pci_disable_device(pci);
2000         pci_save_state(pci);
2001         pci_set_power_state(pci, pci_choose_state(pci, state));
2002         return 0;
2003 }
2004
2005 static int ali_resume(struct pci_dev *pci)
2006 {
2007         struct snd_card *card = pci_get_drvdata(pci);
2008         struct snd_ali *chip = card->private_data;
2009         struct snd_ali_image *im;
2010         int i, j;
2011
2012         im = chip->image;
2013         if (!im)
2014                 return 0;
2015
2016         pci_set_power_state(pci, PCI_D0);
2017         pci_restore_state(pci);
2018         if (pci_enable_device(pci) < 0) {
2019                 printk(KERN_ERR "ali5451: pci_enable_device failed, "
2020                        "disabling device\n");
2021                 snd_card_disconnect(card);
2022                 return -EIO;
2023         }
2024         pci_set_master(pci);
2025
2026         spin_lock_irq(&chip->reg_lock);
2027
2028         for (i = 0; i < ALI_CHANNELS; i++) {
2029                 outb(i, ALI_REG(chip, ALI_GC_CIR));
2030                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
2031                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
2032         }
2033
2034         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
2035                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
2036                     (i*4 == ALI_START))
2037                         continue;
2038                 outl(im->regs[i], ALI_REG(chip, i*4));
2039         }
2040
2041         /* start HW channel */
2042         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
2043         /* restore IRQ enable bits */
2044         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
2045
2046         spin_unlock_irq(&chip->reg_lock);
2047
2048         for (i = 0 ; i < chip->num_of_codecs; i++)
2049                 snd_ac97_resume(chip->ac97[i]);
2050
2051         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
2052         return 0;
2053 }
2054 #endif /* CONFIG_PM */
2055
2056 static int snd_ali_free(struct snd_ali * codec)
2057 {
2058         if (codec->hw_initialized)
2059                 snd_ali_disable_address_interrupt(codec);
2060         if (codec->irq >= 0) {
2061                 synchronize_irq(codec->irq);
2062                 free_irq(codec->irq, codec);
2063         }
2064         if (codec->port)
2065                 pci_release_regions(codec->pci);
2066         pci_disable_device(codec->pci);
2067 #ifdef CONFIG_PM
2068         kfree(codec->image);
2069 #endif
2070         pci_dev_put(codec->pci_m1533);
2071         pci_dev_put(codec->pci_m7101);
2072         kfree(codec);
2073         return 0;
2074 }
2075
2076 static int snd_ali_chip_init(struct snd_ali *codec)
2077 {
2078         unsigned int legacy;
2079         unsigned char temp;
2080         struct pci_dev *pci_dev;
2081
2082         snd_ali_printk("chip initializing ... \n");
2083
2084         if (snd_ali_reset_5451(codec)) {
2085                 snd_printk(KERN_ERR "ali_chip_init: reset 5451 error.\n");
2086                 return -1;
2087         }
2088
2089         if (codec->revision == ALI_5451_V02) {
2090                 pci_dev = codec->pci_m1533;
2091                 pci_read_config_byte(pci_dev, 0x59, &temp);
2092                 temp |= 0x80;
2093                 pci_write_config_byte(pci_dev, 0x59, temp);
2094
2095                 pci_dev = codec->pci_m7101;
2096                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2097                 temp |= 0x20;
2098                 pci_write_config_byte(pci_dev, 0xB8, temp);
2099         }
2100
2101         pci_read_config_dword(codec->pci, 0x44, &legacy);
2102         legacy &= 0xff00ff00;
2103         legacy |= 0x000800aa;
2104         pci_write_config_dword(codec->pci, 0x44, legacy);
2105
2106         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2107         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2108         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2109         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2110         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2111
2112         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2113         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2114                                                     AC97_EXTENDED_STATUS);
2115         if (codec->spdif_support) {
2116                 snd_ali_enable_spdif_out(codec);
2117                 codec->spdif_mask = 0x00000002;
2118         }
2119
2120         codec->num_of_codecs = 1;
2121
2122         /* secondary codec - modem */
2123         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2124                 codec->num_of_codecs++;
2125                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2126                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2127                       ALI_SCTRL_LINE_OUT_EN),
2128                      ALI_REG(codec, ALI_SCTRL));
2129         }
2130
2131         snd_ali_printk("chip initialize succeed.\n");
2132         return 0;
2133
2134 }
2135
2136 /* proc for register dump */
2137 static void snd_ali_proc_read(struct snd_info_entry *entry,
2138                               struct snd_info_buffer *buf)
2139 {
2140         struct snd_ali *codec = entry->private_data;
2141         int i;
2142         for (i = 0; i < 256 ; i+= 4)
2143                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2144 }
2145
2146 static void __devinit snd_ali_proc_init(struct snd_ali *codec)
2147 {
2148         struct snd_info_entry *entry;
2149         if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2150                 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2151 }
2152
2153 static int __devinit snd_ali_resources(struct snd_ali *codec)
2154 {
2155         int err;
2156
2157         snd_ali_printk("resouces allocation ...\n");
2158         err = pci_request_regions(codec->pci, "ALI 5451");
2159         if (err < 0)
2160                 return err;
2161         codec->port = pci_resource_start(codec->pci, 0);
2162
2163         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2164                         IRQF_SHARED, "ALI 5451", codec)) {
2165                 snd_printk(KERN_ERR "Unable to request irq.\n");
2166                 return -EBUSY;
2167         }
2168         codec->irq = codec->pci->irq;
2169         snd_ali_printk("resouces allocated.\n");
2170         return 0;
2171 }
2172 static int snd_ali_dev_free(struct snd_device *device)
2173 {
2174         struct snd_ali *codec = device->device_data;
2175         snd_ali_free(codec);
2176         return 0;
2177 }
2178
2179 static int __devinit snd_ali_create(struct snd_card *card,
2180                                     struct pci_dev *pci,
2181                                     int pcm_streams,
2182                                     int spdif_support,
2183                                     struct snd_ali ** r_ali)
2184 {
2185         struct snd_ali *codec;
2186         int i, err;
2187         unsigned short cmdw;
2188         static struct snd_device_ops ops = {
2189                 .dev_free = snd_ali_dev_free,
2190         };
2191
2192         *r_ali = NULL;
2193
2194         snd_ali_printk("creating ...\n");
2195
2196         /* enable PCI device */
2197         err = pci_enable_device(pci);
2198         if (err < 0)
2199                 return err;
2200         /* check, if we can restrict PCI DMA transfers to 31 bits */
2201         if (pci_set_dma_mask(pci, DMA_31BIT_MASK) < 0 ||
2202             pci_set_consistent_dma_mask(pci, DMA_31BIT_MASK) < 0) {
2203                 snd_printk(KERN_ERR "architecture does not support "
2204                            "31bit PCI busmaster DMA\n");
2205                 pci_disable_device(pci);
2206                 return -ENXIO;
2207         }
2208
2209         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2210         if (!codec) {
2211                 pci_disable_device(pci);
2212                 return -ENOMEM;
2213         }
2214
2215         spin_lock_init(&codec->reg_lock);
2216         spin_lock_init(&codec->voice_alloc);
2217
2218         codec->card = card;
2219         codec->pci = pci;
2220         codec->irq = -1;
2221         pci_read_config_byte(pci, PCI_REVISION_ID, &codec->revision);
2222         codec->spdif_support = spdif_support;
2223
2224         if (pcm_streams < 1)
2225                 pcm_streams = 1;
2226         if (pcm_streams > 32)
2227                 pcm_streams = 32;
2228
2229         pci_set_master(pci);
2230         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2231         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2232                 cmdw |= PCI_COMMAND_IO;
2233                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2234         }
2235         pci_set_master(pci);
2236
2237         if (snd_ali_resources(codec)) {
2238                 snd_ali_free(codec);
2239                 return -EBUSY;
2240         }
2241
2242         synchronize_irq(pci->irq);
2243
2244         codec->synth.chmap = 0;
2245         codec->synth.chcnt = 0;
2246         codec->spdif_mask = 0;
2247         codec->synth.synthcount = 0;
2248
2249         if (codec->revision == ALI_5451_V02)
2250                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2251         else
2252                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2253         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2254
2255         codec->chregs.regs.start  = ALI_START;
2256         codec->chregs.regs.stop   = ALI_STOP;
2257         codec->chregs.regs.aint   = ALI_AINT;
2258         codec->chregs.regs.ainten = ALI_AINTEN;
2259
2260         codec->chregs.data.start  = 0x00;
2261         codec->chregs.data.stop   = 0x00;
2262         codec->chregs.data.aint   = 0x00;
2263         codec->chregs.data.ainten = 0x00;
2264
2265         /* M1533: southbridge */
2266         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2267         if (!codec->pci_m1533) {
2268                 snd_printk(KERN_ERR "ali5451: cannot find ALi 1533 chip.\n");
2269                 snd_ali_free(codec);
2270                 return -ENODEV;
2271         }
2272         /* M7101: power management */
2273         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2274         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2275                 snd_printk(KERN_ERR "ali5451: cannot find ALi 7101 chip.\n");
2276                 snd_ali_free(codec);
2277                 return -ENODEV;
2278         }
2279
2280         snd_ali_printk("snd_device_new is called.\n");
2281         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2282         if (err < 0) {
2283                 snd_ali_free(codec);
2284                 return err;
2285         }
2286
2287         snd_card_set_dev(card, &pci->dev);
2288
2289         /* initialise synth voices*/
2290         for (i = 0; i < ALI_CHANNELS; i++)
2291                 codec->synth.voices[i].number = i;
2292
2293         err = snd_ali_chip_init(codec);
2294         if (err < 0) {
2295                 snd_printk(KERN_ERR "ali create: chip init error.\n");
2296                 return err;
2297         }
2298
2299 #ifdef CONFIG_PM
2300         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2301         if (!codec->image)
2302                 snd_printk(KERN_WARNING "can't allocate apm buffer\n");
2303 #endif
2304
2305         snd_ali_enable_address_interrupt(codec);
2306         codec->hw_initialized = 1;
2307
2308         *r_ali = codec;
2309         snd_ali_printk("created.\n");
2310         return 0;
2311 }
2312
2313 static int __devinit snd_ali_probe(struct pci_dev *pci,
2314                                    const struct pci_device_id *pci_id)
2315 {
2316         struct snd_card *card;
2317         struct snd_ali *codec;
2318         int err;
2319
2320         snd_ali_printk("probe ...\n");
2321
2322         card = snd_card_new(index, id, THIS_MODULE, 0);
2323         if (!card)
2324                 return -ENOMEM;
2325
2326         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2327         if (err < 0)
2328                 goto error;
2329         card->private_data = codec;
2330
2331         snd_ali_printk("mixer building ...\n");
2332         err = snd_ali_mixer(codec);
2333         if (err < 0)
2334                 goto error;
2335
2336         snd_ali_printk("pcm building ...\n");
2337         err = snd_ali_build_pcms(codec);
2338         if (err < 0)
2339                 goto error;
2340
2341         snd_ali_proc_init(codec);
2342
2343         strcpy(card->driver, "ALI5451");
2344         strcpy(card->shortname, "ALI 5451");
2345
2346         sprintf(card->longname, "%s at 0x%lx, irq %li",
2347                 card->shortname, codec->port, codec->irq);
2348
2349         snd_ali_printk("register card.\n");
2350         err = snd_card_register(card);
2351         if (err < 0)
2352                 goto error;
2353
2354         pci_set_drvdata(pci, card);
2355         return 0;
2356
2357  error:
2358         snd_card_free(card);
2359         return err;
2360 }
2361
2362 static void __devexit snd_ali_remove(struct pci_dev *pci)
2363 {
2364         snd_card_free(pci_get_drvdata(pci));
2365         pci_set_drvdata(pci, NULL);
2366 }
2367
2368 static struct pci_driver driver = {
2369         .name = "ALI 5451",
2370         .id_table = snd_ali_ids,
2371         .probe = snd_ali_probe,
2372         .remove = __devexit_p(snd_ali_remove),
2373 #ifdef CONFIG_PM
2374         .suspend = ali_suspend,
2375         .resume = ali_resume,
2376 #endif
2377 };
2378
2379 static int __init alsa_card_ali_init(void)
2380 {
2381         return pci_register_driver(&driver);
2382 }
2383
2384 static void __exit alsa_card_ali_exit(void)
2385 {
2386         pci_unregister_driver(&driver);
2387 }
2388
2389 module_init(alsa_card_ali_init)
2390 module_exit(alsa_card_ali_exit)