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