kernel/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 <linux/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/module.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 bool 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 bool enable;
  64 module_param(enable, bool, 0444);
  65
  66
  67 /*
  68  *  Constants definition
  69  */
  70
  71 #define DEVICE_ID_ALI5451       ((PCI_VENDOR_ID_AL<<16)|PCI_DEVICE_ID_AL_M5451)
  72
  73
  74 #define ALI_CHANNELS            32
  75
  76 #define ALI_PCM_IN_CHANNEL      31
  77 #define ALI_SPDIF_IN_CHANNEL    19
  78 #define ALI_SPDIF_OUT_CHANNEL   15
  79 #define ALI_CENTER_CHANNEL      24
  80 #define ALI_LEF_CHANNEL         23
  81 #define ALI_SURR_LEFT_CHANNEL   26
  82 #define ALI_SURR_RIGHT_CHANNEL  25
  83 #define ALI_MODEM_IN_CHANNEL    21
  84 #define ALI_MODEM_OUT_CHANNEL   20
  85
  86 #define SNDRV_ALI_VOICE_TYPE_PCM        01
  87 #define SNDRV_ALI_VOICE_TYPE_OTH        02
  88
  89 #define ALI_5451_V02            0x02
  90
  91 /*
  92  *  Direct Registers
  93  */
  94
  95 #define ALI_LEGACY_DMAR0        0x00  /* ADR0 */
  96 #define ALI_LEGACY_DMAR4        0x04  /* CNT0 */
  97 #define ALI_LEGACY_DMAR11       0x0b  /* MOD  */
  98 #define ALI_LEGACY_DMAR15       0x0f  /* MMR  */
  99 #define ALI_MPUR0               0x20
 100 #define ALI_MPUR1               0x21
 101 #define ALI_MPUR2               0x22
 102 #define ALI_MPUR3               0x23
 103
 104 #define ALI_AC97_WRITE          0x40
 105 #define ALI_AC97_READ           0x44
 106
 107 #define ALI_SCTRL               0x48
 108 #define   ALI_SPDIF_OUT_ENABLE          0x20
 109 #define   ALI_SCTRL_LINE_IN2            (1 << 9)
 110 #define   ALI_SCTRL_GPIO_IN2            (1 << 13)
 111 #define   ALI_SCTRL_LINE_OUT_EN         (1 << 20)
 112 #define   ALI_SCTRL_GPIO_OUT_EN         (1 << 23)
 113 #define   ALI_SCTRL_CODEC1_READY        (1 << 24)
 114 #define   ALI_SCTRL_CODEC2_READY        (1 << 25)
 115 #define ALI_AC97_GPIO           0x4c
 116 #define   ALI_AC97_GPIO_ENABLE          0x8000
 117 #define   ALI_AC97_GPIO_DATA_SHIFT      16
 118 #define ALI_SPDIF_CS            0x70
 119 #define ALI_SPDIF_CTRL          0x74
 120 #define   ALI_SPDIF_IN_FUNC_ENABLE      0x02
 121 #define   ALI_SPDIF_IN_CH_STATUS        0x40
 122 #define   ALI_SPDIF_OUT_CH_STATUS       0xbf
 123 #define ALI_START               0x80
 124 #define ALI_STOP                0x84
 125 #define ALI_CSPF                0x90
 126 #define ALI_AINT                0x98
 127 #define ALI_GC_CIR              0xa0
 128         #define ENDLP_IE                0x00001000
 129         #define MIDLP_IE                0x00002000
 130 #define ALI_AINTEN              0xa4
 131 #define ALI_VOLUME              0xa8
 132 #define ALI_SBDELTA_DELTA_R     0xac
 133 #define ALI_MISCINT             0xb0
 134         #define ADDRESS_IRQ             0x00000020
 135         #define TARGET_REACHED          0x00008000
 136         #define MIXER_OVERFLOW          0x00000800
 137         #define MIXER_UNDERFLOW         0x00000400
 138         #define GPIO_IRQ                0x01000000
 139 #define ALI_SBBL_SBCL           0xc0
 140 #define ALI_SBCTRL_SBE2R_SBDD   0xc4
 141 #define ALI_STIMER              0xc8
 142 #define ALI_GLOBAL_CONTROL      0xd4
 143 #define   ALI_SPDIF_OUT_SEL_PCM         0x00000400 /* bit 10 */
 144 #define   ALI_SPDIF_IN_SUPPORT          0x00000800 /* bit 11 */
 145 #define   ALI_SPDIF_OUT_CH_ENABLE       0x00008000 /* bit 15 */
 146 #define   ALI_SPDIF_IN_CH_ENABLE        0x00080000 /* bit 19 */
 147 #define   ALI_PCM_IN_ENABLE             0x80000000 /* bit 31 */
 148
 149 #define ALI_CSO_ALPHA_FMS       0xe0
 150 #define ALI_LBA                 0xe4
 151 #define ALI_ESO_DELTA           0xe8
 152 #define ALI_GVSEL_PAN_VOC_CTRL_EC       0xf0
 153 #define ALI_EBUF1               0xf4
 154 #define ALI_EBUF2               0xf8
 155
 156 #define ALI_REG(codec, x) ((codec)->port + x)
 157
 158 #define MAX_CODECS 2
 159
 160
 161 struct snd_ali;
 162 struct snd_ali_voice;
 163
 164 struct snd_ali_channel_control {
 165         /* register data */
 166         struct REGDATA {
 167                 unsigned int start;
 168                 unsigned int stop;
 169                 unsigned int aint;
 170                 unsigned int ainten;
 171         } data;
 172
 173         /* register addresses */
 174         struct REGS {
 175                 unsigned int start;
 176                 unsigned int stop;
 177                 unsigned int aint;
 178                 unsigned int ainten;
 179                 unsigned int ac97read;
 180                 unsigned int ac97write;
 181         } regs;
 182
 183 };
 184
 185 struct snd_ali_voice {
 186         unsigned int number;
 187         unsigned int use :1,
 188                 pcm :1,
 189                 midi :1,
 190                 mode :1,
 191                 synth :1,
 192                 running :1;
 193
 194         /* PCM data */
 195         struct snd_ali *codec;
 196         struct snd_pcm_substream *substream;
 197         struct snd_ali_voice *extra;
 198
 199         int eso;                /* final ESO value for channel */
 200         int count;              /* runtime->period_size */
 201
 202         /* --- */
 203
 204         void *private_data;
 205         void (*private_free)(void *private_data);
 206 };
 207
 208
 209 struct snd_alidev {
 210
 211         struct snd_ali_voice voices[ALI_CHANNELS];
 212
 213         unsigned int    chcnt;                  /* num of opened channels */
 214         unsigned int    chmap;                  /* bitmap for opened channels */
 215         unsigned int synthcount;
 216
 217 };
 218
 219
 220 #define ALI_GLOBAL_REGS         56
 221 #define ALI_CHANNEL_REGS        8
 222 struct snd_ali_image {
 223         u32 regs[ALI_GLOBAL_REGS];
 224         u32 channel_regs[ALI_CHANNELS][ALI_CHANNEL_REGS];
 225 };
 226
 227
 228 struct snd_ali {
 229         int             irq;
 230         unsigned long   port;
 231         unsigned char   revision;
 232
 233         unsigned int hw_initialized :1;
 234         unsigned int spdif_support :1;
 235
 236         struct pci_dev  *pci;
 237         struct pci_dev  *pci_m1533;
 238         struct pci_dev  *pci_m7101;
 239
 240         struct snd_card *card;
 241         struct snd_pcm  *pcm[MAX_CODECS];
 242         struct snd_alidev       synth;
 243         struct snd_ali_channel_control chregs;
 244
 245         /* S/PDIF Mask */
 246         unsigned int    spdif_mask;
 247
 248         unsigned int spurious_irq_count;
 249         unsigned int spurious_irq_max_delta;
 250
 251         unsigned int num_of_codecs;
 252
 253         struct snd_ac97_bus *ac97_bus;
 254         struct snd_ac97 *ac97[MAX_CODECS];
 255         unsigned short  ac97_ext_id;
 256         unsigned short  ac97_ext_status;
 257
 258         spinlock_t      reg_lock;
 259         spinlock_t      voice_alloc;
 260
 261 #ifdef CONFIG_PM_SLEEP
 262         struct snd_ali_image *image;
 263 #endif
 264 };
 265
 266 static const struct pci_device_id snd_ali_ids[] = {
 267         {PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451), 0, 0, 0},
 268         {0, }
 269 };
 270 MODULE_DEVICE_TABLE(pci, snd_ali_ids);
 271
 272 static void snd_ali_clear_voices(struct snd_ali *, unsigned int, unsigned int);
 273 static unsigned short snd_ali_codec_peek(struct snd_ali *, int, unsigned short);
 274 static void snd_ali_codec_poke(struct snd_ali *, int, unsigned short,
 275                                unsigned short);
 276
 277 /*
 278  *  AC97 ACCESS
 279  */
 280
 281 static inline unsigned int snd_ali_5451_peek(struct snd_ali *codec,
 282                                              unsigned int port)
 283 {
 284         return (unsigned int)inl(ALI_REG(codec, port));
 285 }
 286
 287 static inline void snd_ali_5451_poke(struct snd_ali *codec,
 288                                      unsigned int port,
 289                                      unsigned int val)
 290 {
 291         outl((unsigned int)val, ALI_REG(codec, port));
 292 }
 293
 294 static int snd_ali_codec_ready(struct snd_ali *codec,
 295                                unsigned int port)
 296 {
 297         unsigned long end_time;
 298         unsigned int res;
 299
 300         end_time = jiffies + msecs_to_jiffies(250);
 301
 302         for (;;) {
 303                 res = snd_ali_5451_peek(codec,port);
 304                 if (!(res & 0x8000))
 305                         return 0;
 306                 if (!time_after_eq(end_time, jiffies))
 307                         break;
 308                 schedule_timeout_uninterruptible(1);
 309         }
 310
 311         snd_ali_5451_poke(codec, port, res & ~0x8000);
 312         dev_dbg(codec->card->dev, "ali_codec_ready: codec is not ready.\n ");
 313         return -EIO;
 314 }
 315
 316 static int snd_ali_stimer_ready(struct snd_ali *codec)
 317 {
 318         unsigned long end_time;
 319         unsigned long dwChk1,dwChk2;
 320
 321         dwChk1 = snd_ali_5451_peek(codec, ALI_STIMER);
 322         end_time = jiffies + msecs_to_jiffies(250);
 323
 324         for (;;) {
 325                 dwChk2 = snd_ali_5451_peek(codec, ALI_STIMER);
 326                 if (dwChk2 != dwChk1)
 327                         return 0;
 328                 if (!time_after_eq(end_time, jiffies))
 329                         break;
 330                 schedule_timeout_uninterruptible(1);
 331         }
 332
 333         dev_err(codec->card->dev, "ali_stimer_read: stimer is not ready.\n");
 334         return -EIO;
 335 }
 336
 337 static void snd_ali_codec_poke(struct snd_ali *codec,int secondary,
 338                                unsigned short reg,
 339                                unsigned short val)
 340 {
 341         unsigned int dwVal;
 342         unsigned int port;
 343
 344         if (reg >= 0x80) {
 345                 dev_err(codec->card->dev,
 346                         "ali_codec_poke: reg(%xh) invalid.\n", reg);
 347                 return;
 348         }
 349
 350         port = codec->chregs.regs.ac97write;
 351
 352         if (snd_ali_codec_ready(codec, port) < 0)
 353                 return;
 354         if (snd_ali_stimer_ready(codec) < 0)
 355                 return;
 356
 357         dwVal  = (unsigned int) (reg & 0xff);
 358         dwVal |= 0x8000 | (val << 16);
 359         if (secondary)
 360                 dwVal |= 0x0080;
 361         if (codec->revision == ALI_5451_V02)
 362                 dwVal |= 0x0100;
 363
 364         snd_ali_5451_poke(codec, port, dwVal);
 365
 366         return ;
 367 }
 368
 369 static unsigned short snd_ali_codec_peek(struct snd_ali *codec,
 370                                          int secondary,
 371                                          unsigned short reg)
 372 {
 373         unsigned int dwVal;
 374         unsigned int port;
 375
 376         if (reg >= 0x80) {
 377                 dev_err(codec->card->dev,
 378                         "ali_codec_peek: reg(%xh) invalid.\n", reg);
 379                 return ~0;
 380         }
 381
 382         port = codec->chregs.regs.ac97read;
 383
 384         if (snd_ali_codec_ready(codec, port) < 0)
 385                 return ~0;
 386         if (snd_ali_stimer_ready(codec) < 0)
 387                 return ~0;
 388
 389         dwVal  = (unsigned int) (reg & 0xff);
 390         dwVal |= 0x8000;                                /* bit 15*/
 391         if (secondary)
 392                 dwVal |= 0x0080;
 393
 394         snd_ali_5451_poke(codec, port, dwVal);
 395
 396         if (snd_ali_stimer_ready(codec) < 0)
 397                 return ~0;
 398         if (snd_ali_codec_ready(codec, port) < 0)
 399                 return ~0;
 400
 401         return (snd_ali_5451_peek(codec, port) & 0xffff0000) >> 16;
 402 }
 403
 404 static void snd_ali_codec_write(struct snd_ac97 *ac97,
 405                                 unsigned short reg,
 406                                 unsigned short val )
 407 {
 408         struct snd_ali *codec = ac97->private_data;
 409
 410         dev_dbg(codec->card->dev, "codec_write: reg=%xh data=%xh.\n", reg, val);
 411         if (reg == AC97_GPIO_STATUS) {
 412                 outl((val << ALI_AC97_GPIO_DATA_SHIFT) | ALI_AC97_GPIO_ENABLE,
 413                      ALI_REG(codec, ALI_AC97_GPIO));
 414                 return;
 415         }
 416         snd_ali_codec_poke(codec, ac97->num, reg, val);
 417         return ;
 418 }
 419
 420
 421 static unsigned short snd_ali_codec_read(struct snd_ac97 *ac97,
 422                                          unsigned short reg)
 423 {
 424         struct snd_ali *codec = ac97->private_data;
 425
 426         dev_dbg(codec->card->dev, "codec_read reg=%xh.\n", reg);
 427         return snd_ali_codec_peek(codec, ac97->num, reg);
 428 }
 429
 430 /*
 431  *      AC97 Reset
 432  */
 433
 434 static int snd_ali_reset_5451(struct snd_ali *codec)
 435 {
 436         struct pci_dev *pci_dev;
 437         unsigned short wCount, wReg;
 438         unsigned int   dwVal;
 439
 440         pci_dev = codec->pci_m1533;
 441         if (pci_dev) {
 442                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 443                 pci_write_config_dword(pci_dev, 0x7c, dwVal | 0x08000000);
 444                 mdelay(5);
 445                 pci_read_config_dword(pci_dev, 0x7c, &dwVal);
 446                 pci_write_config_dword(pci_dev, 0x7c, dwVal & 0xf7ffffff);
 447                 mdelay(5);
 448         }
 449
 450         pci_dev = codec->pci;
 451         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 452         pci_write_config_dword(pci_dev, 0x44, dwVal | 0x000c0000);
 453         udelay(500);
 454         pci_read_config_dword(pci_dev, 0x44, &dwVal);
 455         pci_write_config_dword(pci_dev, 0x44, dwVal & 0xfffbffff);
 456         mdelay(5);
 457
 458         wCount = 200;
 459         while(wCount--) {
 460                 wReg = snd_ali_codec_peek(codec, 0, AC97_POWERDOWN);
 461                 if ((wReg & 0x000f) == 0x000f)
 462                         return 0;
 463                 mdelay(5);
 464         }
 465
 466         /* non-fatal if you have a non PM capable codec */
 467         /* dev_warn(codec->card->dev, "ali5451: reset time out\n"); */
 468         return 0;
 469 }
 470
 471 /*
 472  *  ALI 5451 Controller
 473  */
 474
 475 static void snd_ali_enable_special_channel(struct snd_ali *codec,
 476                                            unsigned int channel)
 477 {
 478         unsigned long dwVal;
 479
 480         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 481         dwVal |= 1 << (channel & 0x0000001f);
 482         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 483 }
 484
 485 static void snd_ali_disable_special_channel(struct snd_ali *codec,
 486                                             unsigned int channel)
 487 {
 488         unsigned long dwVal;
 489
 490         dwVal  = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 491         dwVal &= ~(1 << (channel & 0x0000001f));
 492         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 493 }
 494
 495 static void snd_ali_enable_address_interrupt(struct snd_ali *codec)
 496 {
 497         unsigned int gc;
 498
 499         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 500         gc |= ENDLP_IE;
 501         gc |= MIDLP_IE;
 502         outl( gc, ALI_REG(codec, ALI_GC_CIR));
 503 }
 504
 505 static void snd_ali_disable_address_interrupt(struct snd_ali *codec)
 506 {
 507         unsigned int gc;
 508
 509         gc  = inl(ALI_REG(codec, ALI_GC_CIR));
 510         gc &= ~ENDLP_IE;
 511         gc &= ~MIDLP_IE;
 512         outl(gc, ALI_REG(codec, ALI_GC_CIR));
 513 }
 514
 515 static void snd_ali_disable_voice_irq(struct snd_ali *codec,
 516                                       unsigned int channel)
 517 {
 518         unsigned int mask;
 519         struct snd_ali_channel_control *pchregs = &(codec->chregs);
 520
 521         dev_dbg(codec->card->dev, "disable_voice_irq channel=%d\n", channel);
 522
 523         mask = 1 << (channel & 0x1f);
 524         pchregs->data.ainten  = inl(ALI_REG(codec, pchregs->regs.ainten));
 525         pchregs->data.ainten &= ~mask;
 526         outl(pchregs->data.ainten, ALI_REG(codec, pchregs->regs.ainten));
 527 }
 528
 529 static int snd_ali_alloc_pcm_channel(struct snd_ali *codec, int channel)
 530 {
 531         unsigned int idx =  channel & 0x1f;
 532
 533         if (codec->synth.chcnt >= ALI_CHANNELS){
 534                 dev_err(codec->card->dev,
 535                            "ali_alloc_pcm_channel: no free channels.\n");
 536                 return -1;
 537         }
 538
 539         if (!(codec->synth.chmap & (1 << idx))) {
 540                 codec->synth.chmap |= 1 << idx;
 541                 codec->synth.chcnt++;
 542                 dev_dbg(codec->card->dev, "alloc_pcm_channel no. %d.\n", idx);
 543                 return idx;
 544         }
 545         return -1;
 546 }
 547
 548 static int snd_ali_find_free_channel(struct snd_ali * codec, int rec)
 549 {
 550         int idx;
 551         int result = -1;
 552
 553         dev_dbg(codec->card->dev,
 554                 "find_free_channel: for %s\n", rec ? "rec" : "pcm");
 555
 556         /* recording */
 557         if (rec) {
 558                 if (codec->spdif_support &&
 559                     (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 560                      ALI_SPDIF_IN_SUPPORT))
 561                         idx = ALI_SPDIF_IN_CHANNEL;
 562                 else
 563                         idx = ALI_PCM_IN_CHANNEL;
 564
 565                 result = snd_ali_alloc_pcm_channel(codec, idx);
 566                 if (result >= 0)
 567                         return result;
 568                 else {
 569                         dev_err(codec->card->dev,
 570                                 "ali_find_free_channel: record channel is busy now.\n");
 571                         return -1;
 572                 }
 573         }
 574
 575         /* playback... */
 576         if (codec->spdif_support &&
 577             (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
 578              ALI_SPDIF_OUT_CH_ENABLE)) {
 579                 idx = ALI_SPDIF_OUT_CHANNEL;
 580                 result = snd_ali_alloc_pcm_channel(codec, idx);
 581                 if (result >= 0)
 582                         return result;
 583                 else
 584                         dev_err(codec->card->dev,
 585                                 "ali_find_free_channel: S/PDIF out channel is in busy now.\n");
 586         }
 587
 588         for (idx = 0; idx < ALI_CHANNELS; idx++) {
 589                 result = snd_ali_alloc_pcm_channel(codec, idx);
 590                 if (result >= 0)
 591                         return result;
 592         }
 593         dev_err(codec->card->dev, "ali_find_free_channel: no free channels.\n");
 594         return -1;
 595 }
 596
 597 static void snd_ali_free_channel_pcm(struct snd_ali *codec, int channel)
 598 {
 599         unsigned int idx = channel & 0x0000001f;
 600
 601         dev_dbg(codec->card->dev, "free_channel_pcm channel=%d\n", channel);
 602
 603         if (channel < 0 || channel >= ALI_CHANNELS)
 604                 return;
 605
 606         if (!(codec->synth.chmap & (1 << idx))) {
 607                 dev_err(codec->card->dev,
 608                         "ali_free_channel_pcm: channel %d is not in use.\n",
 609                         channel);
 610                 return;
 611         } else {
 612                 codec->synth.chmap &= ~(1 << idx);
 613                 codec->synth.chcnt--;
 614         }
 615 }
 616
 617 static void snd_ali_stop_voice(struct snd_ali *codec, unsigned int channel)
 618 {
 619         unsigned int mask = 1 << (channel & 0x1f);
 620
 621         dev_dbg(codec->card->dev, "stop_voice: channel=%d\n", channel);
 622         outl(mask, ALI_REG(codec, codec->chregs.regs.stop));
 623 }
 624
 625 /*
 626  *    S/PDIF Part
 627  */
 628
 629 static void snd_ali_delay(struct snd_ali *codec,int interval)
 630 {
 631         unsigned long  begintimer,currenttimer;
 632
 633         begintimer   = inl(ALI_REG(codec, ALI_STIMER));
 634         currenttimer = inl(ALI_REG(codec, ALI_STIMER));
 635
 636         while (currenttimer < begintimer + interval) {
 637                 if (snd_ali_stimer_ready(codec) < 0)
 638                         break;
 639                 currenttimer = inl(ALI_REG(codec,  ALI_STIMER));
 640                 cpu_relax();
 641         }
 642 }
 643
 644 static void snd_ali_detect_spdif_rate(struct snd_ali *codec)
 645 {
 646         u16 wval;
 647         u16 count = 0;
 648         u8  bval, R1 = 0, R2;
 649
 650         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 651         bval |= 0x1F;
 652         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 653
 654         while ((R1 < 0x0b || R1 > 0x0e) && R1 != 0x12 && count <= 50000) {
 655                 count ++;
 656                 snd_ali_delay(codec, 6);
 657                 bval = inb(ALI_REG(codec, ALI_SPDIF_CTRL + 1));
 658                 R1 = bval & 0x1F;
 659         }
 660
 661         if (count > 50000) {
 662                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 663                 return;
 664         }
 665
 666         for (count = 0; count <= 50000; count++) {
 667                 snd_ali_delay(codec, 6);
 668                 bval = inb(ALI_REG(codec,ALI_SPDIF_CTRL + 1));
 669                 R2 = bval & 0x1F;
 670                 if (R2 != R1)
 671                         R1 = R2;
 672                 else
 673                         break;
 674         }
 675
 676         if (count > 50000) {
 677                 dev_err(codec->card->dev, "ali_detect_spdif_rate: timeout!\n");
 678                 return;
 679         }
 680
 681         if (R2 >= 0x0b && R2 <= 0x0e) {
 682                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 683                 wval &= 0xe0f0;
 684                 wval |= (0x09 << 8) | 0x05;
 685                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 686
 687                 bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3)) & 0xf0;
 688                 outb(bval | 0x02, ALI_REG(codec, ALI_SPDIF_CS + 3));
 689         } else if (R2 == 0x12) {
 690                 wval  = inw(ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 691                 wval &= 0xe0f0;
 692                 wval |= (0x0e << 8) | 0x08;
 693                 outw(wval, ALI_REG(codec, ALI_SPDIF_CTRL + 2));
 694
 695                 bval  = inb(ALI_REG(codec,ALI_SPDIF_CS + 3)) & 0xf0;
 696                 outb(bval | 0x03, ALI_REG(codec, ALI_SPDIF_CS + 3));
 697         }
 698 }
 699
 700 static unsigned int snd_ali_get_spdif_in_rate(struct snd_ali *codec)
 701 {
 702         u32     dwRate;
 703         u8      bval;
 704
 705         bval  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 706         bval &= 0x7f;
 707         bval |= 0x40;
 708         outb(bval, ALI_REG(codec, ALI_SPDIF_CTRL));
 709
 710         snd_ali_detect_spdif_rate(codec);
 711
 712         bval  = inb(ALI_REG(codec, ALI_SPDIF_CS + 3));
 713         bval &= 0x0f;
 714
 715         switch (bval) {
 716         case 0: dwRate = 44100; break;
 717         case 1: dwRate = 48000; break;
 718         case 2: dwRate = 32000; break;
 719         default: dwRate = 0; break;
 720         }
 721
 722         return dwRate;
 723 }
 724
 725 static void snd_ali_enable_spdif_in(struct snd_ali *codec)
 726 {
 727         unsigned int dwVal;
 728
 729         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 730         dwVal |= ALI_SPDIF_IN_SUPPORT;
 731         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 732
 733         dwVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 734         dwVal |= 0x02;
 735         outb(dwVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 736
 737         snd_ali_enable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 738 }
 739
 740 static void snd_ali_disable_spdif_in(struct snd_ali *codec)
 741 {
 742         unsigned int dwVal;
 743
 744         dwVal = inl(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 745         dwVal &= ~ALI_SPDIF_IN_SUPPORT;
 746         outl(dwVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 747
 748         snd_ali_disable_special_channel(codec, ALI_SPDIF_IN_CHANNEL);
 749 }
 750
 751
 752 static void snd_ali_set_spdif_out_rate(struct snd_ali *codec, unsigned int rate)
 753 {
 754         unsigned char  bVal;
 755         unsigned int  dwRate;
 756
 757         switch (rate) {
 758         case 32000: dwRate = 0x300; break;
 759         case 48000: dwRate = 0x200; break;
 760         default: dwRate = 0; break;
 761         }
 762
 763         bVal  = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 764         bVal &= (unsigned char)(~(1<<6));
 765
 766         bVal |= 0x80;           /* select right */
 767         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 768         outb(dwRate | 0x20, ALI_REG(codec, ALI_SPDIF_CS + 2));
 769
 770         bVal &= ~0x80;  /* select left */
 771         outb(bVal, ALI_REG(codec, ALI_SPDIF_CTRL));
 772         outw(rate | 0x10, ALI_REG(codec, ALI_SPDIF_CS + 2));
 773 }
 774
 775 static void snd_ali_enable_spdif_out(struct snd_ali *codec)
 776 {
 777         unsigned short wVal;
 778         unsigned char bVal;
 779         struct pci_dev *pci_dev;
 780
 781         pci_dev = codec->pci_m1533;
 782         if (pci_dev == NULL)
 783                 return;
 784         pci_read_config_byte(pci_dev, 0x61, &bVal);
 785         bVal |= 0x40;
 786         pci_write_config_byte(pci_dev, 0x61, bVal);
 787         pci_read_config_byte(pci_dev, 0x7d, &bVal);
 788         bVal |= 0x01;
 789         pci_write_config_byte(pci_dev, 0x7d, bVal);
 790
 791         pci_read_config_byte(pci_dev, 0x7e, &bVal);
 792         bVal &= (~0x20);
 793         bVal |= 0x10;
 794         pci_write_config_byte(pci_dev, 0x7e, bVal);
 795
 796         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 797         outb(bVal | ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 798
 799         bVal = inb(ALI_REG(codec, ALI_SPDIF_CTRL));
 800         outb(bVal & ALI_SPDIF_OUT_CH_STATUS, ALI_REG(codec, ALI_SPDIF_CTRL));
 801
 802         wVal = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 803         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 804         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 805         snd_ali_disable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 806 }
 807
 808 static void snd_ali_enable_spdif_chnout(struct snd_ali *codec)
 809 {
 810         unsigned short wVal;
 811
 812         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 813         wVal &= ~ALI_SPDIF_OUT_SEL_PCM;
 814         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 815 /*
 816         wVal = inw(ALI_REG(codec, ALI_SPDIF_CS));
 817         if (flag & ALI_SPDIF_OUT_NON_PCM)
 818                 wVal |= 0x0002;
 819         else
 820                 wVal &= (~0x0002);
 821         outw(wVal, ALI_REG(codec, ALI_SPDIF_CS));
 822 */
 823         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 824 }
 825
 826 static void snd_ali_disable_spdif_chnout(struct snd_ali *codec)
 827 {
 828         unsigned short wVal;
 829
 830         wVal  = inw(ALI_REG(codec, ALI_GLOBAL_CONTROL));
 831         wVal |= ALI_SPDIF_OUT_SEL_PCM;
 832         outw(wVal, ALI_REG(codec, ALI_GLOBAL_CONTROL));
 833
 834         snd_ali_enable_special_channel(codec, ALI_SPDIF_OUT_CHANNEL);
 835 }
 836
 837 static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 838 {
 839         unsigned char  bVal;
 840
 841         bVal = inb(ALI_REG(codec, ALI_SCTRL));
 842         outb(bVal & ~ALI_SPDIF_OUT_ENABLE, ALI_REG(codec, ALI_SCTRL));
 843
 844         snd_ali_disable_spdif_chnout(codec);
 845 }
 846
 847 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 848 {
 849         struct snd_ali_voice *pvoice;
 850         struct snd_ali_channel_control *pchregs;
 851         unsigned int old, mask;
 852
 853         pchregs = &(codec->chregs);
 854
 855         /* check if interrupt occurred for channel */
 856         old  = pchregs->data.aint;
 857         mask = 1U << (channel & 0x1f);
 858
 859         if (!(old & mask))
 860                 return;
 861
 862         pvoice = &codec->synth.voices[channel];
 863
 864         udelay(100);
 865         spin_lock(&codec->reg_lock);
 866
 867         if (pvoice->pcm && pvoice->substream) {
 868                 /* pcm interrupt */
 869                 if (pvoice->running) {
 870                         dev_dbg(codec->card->dev,
 871                                 "update_ptr: cso=%4.4x cspf=%d.\n",
 872                                 inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)),
 873                                 (inl(ALI_REG(codec, ALI_CSPF)) & mask) == mask);
 874                         spin_unlock(&codec->reg_lock);
 875                         snd_pcm_period_elapsed(pvoice->substream);
 876                         spin_lock(&codec->reg_lock);
 877                 } else {
 878                         snd_ali_stop_voice(codec, channel);
 879                         snd_ali_disable_voice_irq(codec, channel);
 880                 }
 881         } else if (codec->synth.voices[channel].synth) {
 882                 /* synth interrupt */
 883         } else if (codec->synth.voices[channel].midi) {
 884                 /* midi interrupt */
 885         } else {
 886                 /* unknown interrupt */
 887                 snd_ali_stop_voice(codec, channel);
 888                 snd_ali_disable_voice_irq(codec, channel);
 889         }
 890         spin_unlock(&codec->reg_lock);
 891         outl(mask,ALI_REG(codec,pchregs->regs.aint));
 892         pchregs->data.aint = old & (~mask);
 893 }
 894
 895 static irqreturn_t snd_ali_card_interrupt(int irq, void *dev_id)
 896 {
 897         struct snd_ali  *codec = dev_id;
 898         int channel;
 899         unsigned int audio_int;
 900         struct snd_ali_channel_control *pchregs;
 901
 902         if (codec == NULL || !codec->hw_initialized)
 903                 return IRQ_NONE;
 904
 905         audio_int = inl(ALI_REG(codec, ALI_MISCINT));
 906         if (!audio_int)
 907                 return IRQ_NONE;
 908
 909         pchregs = &(codec->chregs);
 910         if (audio_int & ADDRESS_IRQ) {
 911                 /* get interrupt status for all channels */
 912                 pchregs->data.aint = inl(ALI_REG(codec, pchregs->regs.aint));
 913                 for (channel = 0; channel < ALI_CHANNELS; channel++)
 914                         snd_ali_update_ptr(codec, channel);
 915         }
 916         outl((TARGET_REACHED | MIXER_OVERFLOW | MIXER_UNDERFLOW),
 917                 ALI_REG(codec, ALI_MISCINT));
 918
 919         return IRQ_HANDLED;
 920 }
 921
 922
 923 static struct snd_ali_voice *snd_ali_alloc_voice(struct snd_ali * codec,
 924                                                  int type, int rec, int channel)
 925 {
 926         struct snd_ali_voice *pvoice;
 927         int idx;
 928
 929         dev_dbg(codec->card->dev, "alloc_voice: type=%d rec=%d\n", type, rec);
 930
 931         spin_lock_irq(&codec->voice_alloc);
 932         if (type == SNDRV_ALI_VOICE_TYPE_PCM) {
 933                 idx = channel > 0 ? snd_ali_alloc_pcm_channel(codec, channel) :
 934                         snd_ali_find_free_channel(codec,rec);
 935                 if (idx < 0) {
 936                         dev_err(codec->card->dev, "ali_alloc_voice: err.\n");
 937                         spin_unlock_irq(&codec->voice_alloc);
 938                         return NULL;
 939                 }
 940                 pvoice = &(codec->synth.voices[idx]);
 941                 pvoice->codec = codec;
 942                 pvoice->use = 1;
 943                 pvoice->pcm = 1;
 944                 pvoice->mode = rec;
 945                 spin_unlock_irq(&codec->voice_alloc);
 946                 return pvoice;
 947         }
 948         spin_unlock_irq(&codec->voice_alloc);
 949         return NULL;
 950 }
 951
 952
 953 static void snd_ali_free_voice(struct snd_ali * codec,
 954                                struct snd_ali_voice *pvoice)
 955 {
 956         void (*private_free)(void *);
 957         void *private_data;
 958
 959         dev_dbg(codec->card->dev, "free_voice: channel=%d\n", pvoice->number);
 960         if (!pvoice->use)
 961                 return;
 962         snd_ali_clear_voices(codec, pvoice->number, pvoice->number);
 963         spin_lock_irq(&codec->voice_alloc);
 964         private_free = pvoice->private_free;
 965         private_data = pvoice->private_data;
 966         pvoice->private_free = NULL;
 967         pvoice->private_data = NULL;
 968         if (pvoice->pcm)
 969                 snd_ali_free_channel_pcm(codec, pvoice->number);
 970         pvoice->use = pvoice->pcm = pvoice->synth = 0;
 971         pvoice->substream = NULL;
 972         spin_unlock_irq(&codec->voice_alloc);
 973         if (private_free)
 974                 private_free(private_data);
 975 }
 976
 977
 978 static void snd_ali_clear_voices(struct snd_ali *codec,
 979                                  unsigned int v_min,
 980                                  unsigned int v_max)
 981 {
 982         unsigned int i;
 983
 984         for (i = v_min; i <= v_max; i++) {
 985                 snd_ali_stop_voice(codec, i);
 986                 snd_ali_disable_voice_irq(codec, i);
 987         }
 988 }
 989
 990 static void snd_ali_write_voice_regs(struct snd_ali *codec,
 991                          unsigned int Channel,
 992                          unsigned int LBA,
 993                          unsigned int CSO,
 994                          unsigned int ESO,
 995                          unsigned int DELTA,
 996                          unsigned int ALPHA_FMS,
 997                          unsigned int GVSEL,
 998                          unsigned int PAN,
 999                          unsigned int VOL,
1000                          unsigned int CTRL,
1001                          unsigned int EC)
1002 {
1003         unsigned int ctlcmds[4];
1004
1005         outb((unsigned char)(Channel & 0x001f), ALI_REG(codec, ALI_GC_CIR));
1006
1007         ctlcmds[0] =  (CSO << 16) | (ALPHA_FMS & 0x0000ffff);
1008         ctlcmds[1] =  LBA;
1009         ctlcmds[2] =  (ESO << 16) | (DELTA & 0x0ffff);
1010         ctlcmds[3] =  (GVSEL << 31) |
1011                       ((PAN & 0x0000007f) << 24) |
1012                       ((VOL & 0x000000ff) << 16) |
1013                       ((CTRL & 0x0000000f) << 12) |
1014                       (EC & 0x00000fff);
1015
1016         outb(Channel, ALI_REG(codec, ALI_GC_CIR));
1017
1018         outl(ctlcmds[0], ALI_REG(codec, ALI_CSO_ALPHA_FMS));
1019         outl(ctlcmds[1], ALI_REG(codec, ALI_LBA));
1020         outl(ctlcmds[2], ALI_REG(codec, ALI_ESO_DELTA));
1021         outl(ctlcmds[3], ALI_REG(codec, ALI_GVSEL_PAN_VOC_CTRL_EC));
1022
1023         outl(0x30000000, ALI_REG(codec, ALI_EBUF1));    /* Still Mode */
1024         outl(0x30000000, ALI_REG(codec, ALI_EBUF2));    /* Still Mode */
1025 }
1026
1027 static unsigned int snd_ali_convert_rate(unsigned int rate, int rec)
1028 {
1029         unsigned int delta;
1030
1031         if (rate < 4000)
1032                 rate = 4000;
1033         if (rate > 48000)
1034                 rate = 48000;
1035
1036         if (rec) {
1037                 if (rate == 44100)
1038                         delta = 0x116a;
1039                 else if (rate == 8000)
1040                         delta = 0x6000;
1041                 else if (rate == 48000)
1042                         delta = 0x1000;
1043                 else
1044                         delta = ((48000 << 12) / rate) & 0x0000ffff;
1045         } else {
1046                 if (rate == 44100)
1047                         delta = 0xeb3;
1048                 else if (rate == 8000)
1049                         delta = 0x2ab;
1050                 else if (rate == 48000)
1051                         delta = 0x1000;
1052                 else
1053                         delta = (((rate << 12) + rate) / 48000) & 0x0000ffff;
1054         }
1055
1056         return delta;
1057 }
1058
1059 static unsigned int snd_ali_control_mode(struct snd_pcm_substream *substream)
1060 {
1061         unsigned int CTRL;
1062         struct snd_pcm_runtime *runtime = substream->runtime;
1063
1064         /* set ctrl mode
1065            CTRL default: 8-bit (unsigned) mono, loop mode enabled
1066          */
1067         CTRL = 0x00000001;
1068         if (snd_pcm_format_width(runtime->format) == 16)
1069                 CTRL |= 0x00000008;     /* 16-bit data */
1070         if (!snd_pcm_format_unsigned(runtime->format))
1071                 CTRL |= 0x00000002;     /* signed data */
1072         if (runtime->channels > 1)
1073                 CTRL |= 0x00000004;     /* stereo data */
1074         return CTRL;
1075 }
1076
1077 /*
1078  *  PCM part
1079  */
1080
1081 static int snd_ali_trigger(struct snd_pcm_substream *substream,
1082                                int cmd)
1083
1084 {
1085         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1086         struct snd_pcm_substream *s;
1087         unsigned int what, whati, capture_flag;
1088         struct snd_ali_voice *pvoice, *evoice;
1089         unsigned int val;
1090         int do_start;
1091
1092         switch (cmd) {
1093         case SNDRV_PCM_TRIGGER_START:
1094         case SNDRV_PCM_TRIGGER_RESUME:
1095                 do_start = 1;
1096                 break;
1097         case SNDRV_PCM_TRIGGER_STOP:
1098         case SNDRV_PCM_TRIGGER_SUSPEND:
1099                 do_start = 0;
1100                 break;
1101         default:
1102                 return -EINVAL;
1103         }
1104
1105         what = whati = capture_flag = 0;
1106         snd_pcm_group_for_each_entry(s, substream) {
1107                 if ((struct snd_ali *) snd_pcm_substream_chip(s) == codec) {
1108                         pvoice = s->runtime->private_data;
1109                         evoice = pvoice->extra;
1110                         what |= 1 << (pvoice->number & 0x1f);
1111                         if (evoice == NULL)
1112                                 whati |= 1 << (pvoice->number & 0x1f);
1113                         else {
1114                                 whati |= 1 << (evoice->number & 0x1f);
1115                                 what |= 1 << (evoice->number & 0x1f);
1116                         }
1117                         if (do_start) {
1118                                 pvoice->running = 1;
1119                                 if (evoice != NULL)
1120                                         evoice->running = 1;
1121                         } else {
1122                                 pvoice->running = 0;
1123                                 if (evoice != NULL)
1124                                         evoice->running = 0;
1125                         }
1126                         snd_pcm_trigger_done(s, substream);
1127                         if (pvoice->mode)
1128                                 capture_flag = 1;
1129                 }
1130         }
1131         spin_lock(&codec->reg_lock);
1132         if (!do_start)
1133                 outl(what, ALI_REG(codec, ALI_STOP));
1134         val = inl(ALI_REG(codec, ALI_AINTEN));
1135         if (do_start)
1136                 val |= whati;
1137         else
1138                 val &= ~whati;
1139         outl(val, ALI_REG(codec, ALI_AINTEN));
1140         if (do_start)
1141                 outl(what, ALI_REG(codec, ALI_START));
1142         dev_dbg(codec->card->dev, "trigger: what=%xh whati=%xh\n", what, whati);
1143         spin_unlock(&codec->reg_lock);
1144
1145         return 0;
1146 }
1147
1148 static int snd_ali_playback_hw_params(struct snd_pcm_substream *substream,
1149                                       struct snd_pcm_hw_params *hw_params)
1150 {
1151         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1152         struct snd_pcm_runtime *runtime = substream->runtime;
1153         struct snd_ali_voice *pvoice = runtime->private_data;
1154         struct snd_ali_voice *evoice = pvoice->extra;
1155         int err;
1156
1157         err = snd_pcm_lib_malloc_pages(substream,
1158                                        params_buffer_bytes(hw_params));
1159         if (err < 0)
1160                 return err;
1161
1162         /* voice management */
1163
1164         if (params_buffer_size(hw_params) / 2 !=
1165             params_period_size(hw_params)) {
1166                 if (!evoice) {
1167                         evoice = snd_ali_alloc_voice(codec,
1168                                                      SNDRV_ALI_VOICE_TYPE_PCM,
1169                                                      0, -1);
1170                         if (!evoice)
1171                                 return -ENOMEM;
1172                         pvoice->extra = evoice;
1173                         evoice->substream = substream;
1174                 }
1175         } else {
1176                 if (evoice) {
1177                         snd_ali_free_voice(codec, evoice);
1178                         pvoice->extra = evoice = NULL;
1179                 }
1180         }
1181
1182         return 0;
1183 }
1184
1185 static int snd_ali_playback_hw_free(struct snd_pcm_substream *substream)
1186 {
1187         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1188         struct snd_pcm_runtime *runtime = substream->runtime;
1189         struct snd_ali_voice *pvoice = runtime->private_data;
1190         struct snd_ali_voice *evoice = pvoice ? pvoice->extra : NULL;
1191
1192         snd_pcm_lib_free_pages(substream);
1193         if (evoice) {
1194                 snd_ali_free_voice(codec, evoice);
1195                 pvoice->extra = NULL;
1196         }
1197         return 0;
1198 }
1199
1200 static int snd_ali_hw_params(struct snd_pcm_substream *substream,
1201                              struct snd_pcm_hw_params *hw_params)
1202 {
1203         return snd_pcm_lib_malloc_pages(substream,
1204                                         params_buffer_bytes(hw_params));
1205 }
1206
1207 static int snd_ali_hw_free(struct snd_pcm_substream *substream)
1208 {
1209         return snd_pcm_lib_free_pages(substream);
1210 }
1211
1212 static int snd_ali_playback_prepare(struct snd_pcm_substream *substream)
1213 {
1214         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1215         struct snd_pcm_runtime *runtime = substream->runtime;
1216         struct snd_ali_voice *pvoice = runtime->private_data;
1217         struct snd_ali_voice *evoice = pvoice->extra;
1218
1219         unsigned int LBA;
1220         unsigned int Delta;
1221         unsigned int ESO;
1222         unsigned int CTRL;
1223         unsigned int GVSEL;
1224         unsigned int PAN;
1225         unsigned int VOL;
1226         unsigned int EC;
1227
1228         dev_dbg(codec->card->dev, "playback_prepare ...\n");
1229
1230         spin_lock_irq(&codec->reg_lock);
1231
1232         /* set Delta (rate) value */
1233         Delta = snd_ali_convert_rate(runtime->rate, 0);
1234
1235         if (pvoice->number == ALI_SPDIF_IN_CHANNEL ||
1236             pvoice->number == ALI_PCM_IN_CHANNEL)
1237                 snd_ali_disable_special_channel(codec, pvoice->number);
1238         else if (codec->spdif_support &&
1239                  (inl(ALI_REG(codec, ALI_GLOBAL_CONTROL)) &
1240                   ALI_SPDIF_OUT_CH_ENABLE)
1241                  && pvoice->number == ALI_SPDIF_OUT_CHANNEL) {
1242                 snd_ali_set_spdif_out_rate(codec, runtime->rate);
1243                 Delta = 0x1000;
1244         }
1245
1246         /* set Loop Back Address */
1247         LBA = runtime->dma_addr;
1248
1249         /* set interrupt count size */
1250         pvoice->count = runtime->period_size;
1251
1252         /* set target ESO for channel */
1253         pvoice->eso = runtime->buffer_size;
1254
1255         dev_dbg(codec->card->dev, "playback_prepare: eso=%xh count=%xh\n",
1256                        pvoice->eso, pvoice->count);
1257
1258         /* set ESO to capture first MIDLP interrupt */
1259         ESO = pvoice->eso -1;
1260         /* set ctrl mode */
1261         CTRL = snd_ali_control_mode(substream);
1262
1263         GVSEL = 1;
1264         PAN = 0;
1265         VOL = 0;
1266         EC = 0;
1267         dev_dbg(codec->card->dev, "playback_prepare:\n");
1268         dev_dbg(codec->card->dev,
1269                 "ch=%d, Rate=%d Delta=%xh,GVSEL=%xh,PAN=%xh,CTRL=%xh\n",
1270                        pvoice->number,runtime->rate,Delta,GVSEL,PAN,CTRL);
1271         snd_ali_write_voice_regs(codec,
1272                                  pvoice->number,
1273                                  LBA,
1274                                  0,     /* cso */
1275                                  ESO,
1276                                  Delta,
1277                                  0,     /* alpha */
1278                                  GVSEL,
1279                                  PAN,
1280                                  VOL,
1281                                  CTRL,
1282                                  EC);
1283         if (evoice) {
1284                 evoice->count = pvoice->count;
1285                 evoice->eso = pvoice->count << 1;
1286                 ESO = evoice->eso - 1;
1287                 snd_ali_write_voice_regs(codec,
1288                                          evoice->number,
1289                                          LBA,
1290                                          0,     /* cso */
1291                                          ESO,
1292                                          Delta,
1293                                          0,     /* alpha */
1294                                          GVSEL,
1295                                          0x7f,
1296                                          0x3ff,
1297                                          CTRL,
1298                                          EC);
1299         }
1300         spin_unlock_irq(&codec->reg_lock);
1301         return 0;
1302 }
1303
1304
1305 static int snd_ali_prepare(struct snd_pcm_substream *substream)
1306 {
1307         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1308         struct snd_pcm_runtime *runtime = substream->runtime;
1309         struct snd_ali_voice *pvoice = runtime->private_data;
1310         unsigned int LBA;
1311         unsigned int Delta;
1312         unsigned int ESO;
1313         unsigned int CTRL;
1314         unsigned int GVSEL;
1315         unsigned int PAN;
1316         unsigned int VOL;
1317         unsigned int EC;
1318         u8       bValue;
1319
1320         spin_lock_irq(&codec->reg_lock);
1321
1322         dev_dbg(codec->card->dev, "ali_prepare...\n");
1323
1324         snd_ali_enable_special_channel(codec,pvoice->number);
1325
1326         Delta = (pvoice->number == ALI_MODEM_IN_CHANNEL ||
1327                  pvoice->number == ALI_MODEM_OUT_CHANNEL) ?
1328                 0x1000 : snd_ali_convert_rate(runtime->rate, pvoice->mode);
1329
1330         /* Prepare capture intr channel */
1331         if (pvoice->number == ALI_SPDIF_IN_CHANNEL) {
1332
1333                 unsigned int rate;
1334
1335                 spin_unlock_irq(&codec->reg_lock);
1336                 if (codec->revision != ALI_5451_V02)
1337                         return -1;
1338
1339                 rate = snd_ali_get_spdif_in_rate(codec);
1340                 if (rate == 0) {
1341                         dev_warn(codec->card->dev,
1342                                  "ali_capture_preapre: spdif rate detect err!\n");
1343                         rate = 48000;
1344                 }
1345                 spin_lock_irq(&codec->reg_lock);
1346                 bValue = inb(ALI_REG(codec,ALI_SPDIF_CTRL));
1347                 if (bValue & 0x10) {
1348                         outb(bValue,ALI_REG(codec,ALI_SPDIF_CTRL));
1349                         dev_warn(codec->card->dev,
1350                                  "clear SPDIF parity error flag.\n");
1351                 }
1352
1353                 if (rate != 48000)
1354                         Delta = ((rate << 12) / runtime->rate) & 0x00ffff;
1355         }
1356
1357         /* set target ESO for channel  */
1358         pvoice->eso = runtime->buffer_size;
1359
1360         /* set interrupt count size  */
1361         pvoice->count = runtime->period_size;
1362
1363         /* set Loop Back Address  */
1364         LBA = runtime->dma_addr;
1365
1366         /* set ESO to capture first MIDLP interrupt  */
1367         ESO = pvoice->eso - 1;
1368         CTRL = snd_ali_control_mode(substream);
1369         GVSEL = 0;
1370         PAN = 0x00;
1371         VOL = 0x00;
1372         EC = 0;
1373
1374         snd_ali_write_voice_regs(    codec,
1375                                      pvoice->number,
1376                                      LBA,
1377                                      0, /* cso */
1378                                      ESO,
1379                                      Delta,
1380                                      0, /* alpha */
1381                                      GVSEL,
1382                                      PAN,
1383                                      VOL,
1384                                      CTRL,
1385                                      EC);
1386
1387         spin_unlock_irq(&codec->reg_lock);
1388
1389         return 0;
1390 }
1391
1392
1393 static snd_pcm_uframes_t
1394 snd_ali_playback_pointer(struct snd_pcm_substream *substream)
1395 {
1396         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1397         struct snd_pcm_runtime *runtime = substream->runtime;
1398         struct snd_ali_voice *pvoice = runtime->private_data;
1399         unsigned int cso;
1400
1401         spin_lock(&codec->reg_lock);
1402         if (!pvoice->running) {
1403                 spin_unlock(&codec->reg_lock);
1404                 return 0;
1405         }
1406         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1407         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1408         spin_unlock(&codec->reg_lock);
1409         dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
1410
1411         return cso;
1412 }
1413
1414
1415 static snd_pcm_uframes_t snd_ali_pointer(struct snd_pcm_substream *substream)
1416 {
1417         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1418         struct snd_pcm_runtime *runtime = substream->runtime;
1419         struct snd_ali_voice *pvoice = runtime->private_data;
1420         unsigned int cso;
1421
1422         spin_lock(&codec->reg_lock);
1423         if (!pvoice->running) {
1424                 spin_unlock(&codec->reg_lock);
1425                 return 0;
1426         }
1427         outb(pvoice->number, ALI_REG(codec, ALI_GC_CIR));
1428         cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
1429         spin_unlock(&codec->reg_lock);
1430
1431         return cso;
1432 }
1433
1434 static struct snd_pcm_hardware snd_ali_playback =
1435 {
1436         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1437                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1438                          SNDRV_PCM_INFO_MMAP_VALID |
1439                          SNDRV_PCM_INFO_RESUME |
1440                          SNDRV_PCM_INFO_SYNC_START),
1441         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1442                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1443         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1444         .rate_min =             4000,
1445         .rate_max =             48000,
1446         .channels_min =         1,
1447         .channels_max =         2,
1448         .buffer_bytes_max =     (256*1024),
1449         .period_bytes_min =     64,
1450         .period_bytes_max =     (256*1024),
1451         .periods_min =          1,
1452         .periods_max =          1024,
1453         .fifo_size =            0,
1454 };
1455
1456 /*
1457  *  Capture support device description
1458  */
1459
1460 static struct snd_pcm_hardware snd_ali_capture =
1461 {
1462         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1463                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1464                          SNDRV_PCM_INFO_MMAP_VALID |
1465                          SNDRV_PCM_INFO_RESUME |
1466                          SNDRV_PCM_INFO_SYNC_START),
1467         .formats =      (SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
1468                          SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
1469         .rates =        SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
1470         .rate_min =             4000,
1471         .rate_max =             48000,
1472         .channels_min =         1,
1473         .channels_max =         2,
1474         .buffer_bytes_max =     (128*1024),
1475         .period_bytes_min =     64,
1476         .period_bytes_max =     (128*1024),
1477         .periods_min =          1,
1478         .periods_max =          1024,
1479         .fifo_size =            0,
1480 };
1481
1482 static void snd_ali_pcm_free_substream(struct snd_pcm_runtime *runtime)
1483 {
1484         struct snd_ali_voice *pvoice = runtime->private_data;
1485         struct snd_ali *codec;
1486
1487         if (pvoice) {
1488                 codec = pvoice->codec;
1489                 snd_ali_free_voice(pvoice->codec, pvoice);
1490         }
1491 }
1492
1493 static int snd_ali_open(struct snd_pcm_substream *substream, int rec,
1494                         int channel, struct snd_pcm_hardware *phw)
1495 {
1496         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1497         struct snd_pcm_runtime *runtime = substream->runtime;
1498         struct snd_ali_voice *pvoice;
1499
1500         pvoice = snd_ali_alloc_voice(codec, SNDRV_ALI_VOICE_TYPE_PCM, rec,
1501                                      channel);
1502         if (!pvoice)
1503                 return -EAGAIN;
1504
1505         pvoice->substream = substream;
1506         runtime->private_data = pvoice;
1507         runtime->private_free = snd_ali_pcm_free_substream;
1508
1509         runtime->hw = *phw;
1510         snd_pcm_set_sync(substream);
1511         snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1512                                      0, 64*1024);
1513         return 0;
1514 }
1515
1516 static int snd_ali_playback_open(struct snd_pcm_substream *substream)
1517 {
1518         return snd_ali_open(substream, 0, -1, &snd_ali_playback);
1519 }
1520
1521 static int snd_ali_capture_open(struct snd_pcm_substream *substream)
1522 {
1523         return snd_ali_open(substream, 1, -1, &snd_ali_capture);
1524 }
1525
1526 static int snd_ali_playback_close(struct snd_pcm_substream *substream)
1527 {
1528         return 0;
1529 }
1530
1531 static int snd_ali_close(struct snd_pcm_substream *substream)
1532 {
1533         struct snd_ali *codec = snd_pcm_substream_chip(substream);
1534         struct snd_ali_voice *pvoice = substream->runtime->private_data;
1535
1536         snd_ali_disable_special_channel(codec,pvoice->number);
1537
1538         return 0;
1539 }
1540
1541 static struct snd_pcm_ops snd_ali_playback_ops = {
1542         .open =         snd_ali_playback_open,
1543         .close =        snd_ali_playback_close,
1544         .ioctl =        snd_pcm_lib_ioctl,
1545         .hw_params =    snd_ali_playback_hw_params,
1546         .hw_free =      snd_ali_playback_hw_free,
1547         .prepare =      snd_ali_playback_prepare,
1548         .trigger =      snd_ali_trigger,
1549         .pointer =      snd_ali_playback_pointer,
1550 };
1551
1552 static struct snd_pcm_ops snd_ali_capture_ops = {
1553         .open =         snd_ali_capture_open,
1554         .close =        snd_ali_close,
1555         .ioctl =        snd_pcm_lib_ioctl,
1556         .hw_params =    snd_ali_hw_params,
1557         .hw_free =      snd_ali_hw_free,
1558         .prepare =      snd_ali_prepare,
1559         .trigger =      snd_ali_trigger,
1560         .pointer =      snd_ali_pointer,
1561 };
1562
1563 /*
1564  * Modem PCM
1565  */
1566
1567 static int snd_ali_modem_hw_params(struct snd_pcm_substream *substream,
1568                                  struct snd_pcm_hw_params *hw_params)
1569 {
1570         struct snd_ali *chip = snd_pcm_substream_chip(substream);
1571         unsigned int modem_num = chip->num_of_codecs - 1;
1572         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_RATE,
1573                        params_rate(hw_params));
1574         snd_ac97_write(chip->ac97[modem_num], AC97_LINE1_LEVEL, 0);
1575         return snd_ali_hw_params(substream, hw_params);
1576 }
1577
1578 static struct snd_pcm_hardware snd_ali_modem =
1579 {
1580         .info =         (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1581                          SNDRV_PCM_INFO_BLOCK_TRANSFER |
1582                          SNDRV_PCM_INFO_MMAP_VALID |
1583                          SNDRV_PCM_INFO_RESUME |
1584                          SNDRV_PCM_INFO_SYNC_START),
1585         .formats =      SNDRV_PCM_FMTBIT_S16_LE,
1586         .rates =        (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000 |
1587                          SNDRV_PCM_RATE_16000),
1588         .rate_min =             8000,
1589         .rate_max =             16000,
1590         .channels_min =         1,
1591         .channels_max =         1,
1592         .buffer_bytes_max =     (256*1024),
1593         .period_bytes_min =     64,
1594         .period_bytes_max =     (256*1024),
1595         .periods_min =          1,
1596         .periods_max =          1024,
1597         .fifo_size =            0,
1598 };
1599
1600 static int snd_ali_modem_open(struct snd_pcm_substream *substream, int rec,
1601                               int channel)
1602 {
1603         static unsigned int rates[] = {8000, 9600, 12000, 16000};
1604         static struct snd_pcm_hw_constraint_list hw_constraint_rates = {
1605                 .count = ARRAY_SIZE(rates),
1606                 .list = rates,
1607                 .mask = 0,
1608         };
1609         int err = snd_ali_open(substream, rec, channel, &snd_ali_modem);
1610
1611         if (err)
1612                 return err;
1613         return snd_pcm_hw_constraint_list(substream->runtime, 0,
1614                         SNDRV_PCM_HW_PARAM_RATE, &hw_constraint_rates);
1615 }
1616
1617 static int snd_ali_modem_playback_open(struct snd_pcm_substream *substream)
1618 {
1619         return snd_ali_modem_open(substream, 0, ALI_MODEM_OUT_CHANNEL);
1620 }
1621
1622 static int snd_ali_modem_capture_open(struct snd_pcm_substream *substream)
1623 {
1624         return snd_ali_modem_open(substream, 1, ALI_MODEM_IN_CHANNEL);
1625 }
1626
1627 static struct snd_pcm_ops snd_ali_modem_playback_ops = {
1628         .open =         snd_ali_modem_playback_open,
1629         .close =        snd_ali_close,
1630         .ioctl =        snd_pcm_lib_ioctl,
1631         .hw_params =    snd_ali_modem_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 static struct snd_pcm_ops snd_ali_modem_capture_ops = {
1639         .open =         snd_ali_modem_capture_open,
1640         .close =        snd_ali_close,
1641         .ioctl =        snd_pcm_lib_ioctl,
1642         .hw_params =    snd_ali_modem_hw_params,
1643         .hw_free =      snd_ali_hw_free,
1644         .prepare =      snd_ali_prepare,
1645         .trigger =      snd_ali_trigger,
1646         .pointer =      snd_ali_pointer,
1647 };
1648
1649
1650 struct ali_pcm_description {
1651         char *name;
1652         unsigned int playback_num;
1653         unsigned int capture_num;
1654         struct snd_pcm_ops *playback_ops;
1655         struct snd_pcm_ops *capture_ops;
1656         unsigned short class;
1657 };
1658
1659
1660 static void snd_ali_pcm_free(struct snd_pcm *pcm)
1661 {
1662         struct snd_ali *codec = pcm->private_data;
1663         codec->pcm[pcm->device] = NULL;
1664 }
1665
1666
1667 static int snd_ali_pcm(struct snd_ali *codec, int device,
1668                        struct ali_pcm_description *desc)
1669 {
1670         struct snd_pcm *pcm;
1671         int err;
1672
1673         err = snd_pcm_new(codec->card, desc->name, device,
1674                           desc->playback_num, desc->capture_num, &pcm);
1675         if (err < 0) {
1676                 dev_err(codec->card->dev,
1677                         "snd_ali_pcm: err called snd_pcm_new.\n");
1678                 return err;
1679         }
1680         pcm->private_data = codec;
1681         pcm->private_free = snd_ali_pcm_free;
1682         if (desc->playback_ops)
1683                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1684                                 desc->playback_ops);
1685         if (desc->capture_ops)
1686                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1687                                 desc->capture_ops);
1688
1689         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1690                                               snd_dma_pci_data(codec->pci),
1691                                               64*1024, 128*1024);
1692
1693         pcm->info_flags = 0;
1694         pcm->dev_class = desc->class;
1695         pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX;
1696         strcpy(pcm->name, desc->name);
1697         codec->pcm[0] = pcm;
1698         return 0;
1699 }
1700
1701 static struct ali_pcm_description ali_pcms[] = {
1702         { .name = "ALI 5451",
1703           .playback_num = ALI_CHANNELS,
1704           .capture_num = 1,
1705           .playback_ops = &snd_ali_playback_ops,
1706           .capture_ops = &snd_ali_capture_ops
1707         },
1708         { .name = "ALI 5451 modem",
1709           .playback_num = 1,
1710           .capture_num = 1,
1711           .playback_ops = &snd_ali_modem_playback_ops,
1712           .capture_ops = &snd_ali_modem_capture_ops,
1713           .class = SNDRV_PCM_CLASS_MODEM
1714         }
1715 };
1716
1717 static int snd_ali_build_pcms(struct snd_ali *codec)
1718 {
1719         int i, err;
1720         for (i = 0; i < codec->num_of_codecs && i < ARRAY_SIZE(ali_pcms); i++) {
1721                 err = snd_ali_pcm(codec, i, &ali_pcms[i]);
1722                 if (err < 0)
1723                         return err;
1724         }
1725         return 0;
1726 }
1727
1728
1729 #define ALI5451_SPDIF(xname, xindex, value) \
1730 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex,\
1731 .info = snd_ali5451_spdif_info, .get = snd_ali5451_spdif_get, \
1732 .put = snd_ali5451_spdif_put, .private_value = value}
1733
1734 #define snd_ali5451_spdif_info          snd_ctl_boolean_mono_info
1735
1736 static int snd_ali5451_spdif_get(struct snd_kcontrol *kcontrol,
1737                                  struct snd_ctl_elem_value *ucontrol)
1738 {
1739         struct snd_ali *codec = kcontrol->private_data;
1740         unsigned int spdif_enable;
1741
1742         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1743
1744         spin_lock_irq(&codec->reg_lock);
1745         switch (kcontrol->private_value) {
1746         case 0:
1747                 spdif_enable = (codec->spdif_mask & 0x02) ? 1 : 0;
1748                 break;
1749         case 1:
1750                 spdif_enable = ((codec->spdif_mask & 0x02) &&
1751                           (codec->spdif_mask & 0x04)) ? 1 : 0;
1752                 break;
1753         case 2:
1754                 spdif_enable = (codec->spdif_mask & 0x01) ? 1 : 0;
1755                 break;
1756         default:
1757                 break;
1758         }
1759         ucontrol->value.integer.value[0] = spdif_enable;
1760         spin_unlock_irq(&codec->reg_lock);
1761         return 0;
1762 }
1763
1764 static int snd_ali5451_spdif_put(struct snd_kcontrol *kcontrol,
1765                                  struct snd_ctl_elem_value *ucontrol)
1766 {
1767         struct snd_ali *codec = kcontrol->private_data;
1768         unsigned int change = 0, spdif_enable = 0;
1769
1770         spdif_enable = ucontrol->value.integer.value[0] ? 1 : 0;
1771
1772         spin_lock_irq(&codec->reg_lock);
1773         switch (kcontrol->private_value) {
1774         case 0:
1775                 change = (codec->spdif_mask & 0x02) ? 1 : 0;
1776                 change = change ^ spdif_enable;
1777                 if (change) {
1778                         if (spdif_enable) {
1779                                 codec->spdif_mask |= 0x02;
1780                                 snd_ali_enable_spdif_out(codec);
1781                         } else {
1782                                 codec->spdif_mask &= ~(0x02);
1783                                 codec->spdif_mask &= ~(0x04);
1784                                 snd_ali_disable_spdif_out(codec);
1785                         }
1786                 }
1787                 break;
1788         case 1:
1789                 change = (codec->spdif_mask & 0x04) ? 1 : 0;
1790                 change = change ^ spdif_enable;
1791                 if (change && (codec->spdif_mask & 0x02)) {
1792                         if (spdif_enable) {
1793                                 codec->spdif_mask |= 0x04;
1794                                 snd_ali_enable_spdif_chnout(codec);
1795                         } else {
1796                                 codec->spdif_mask &= ~(0x04);
1797                                 snd_ali_disable_spdif_chnout(codec);
1798                         }
1799                 }
1800                 break;
1801         case 2:
1802                 change = (codec->spdif_mask & 0x01) ? 1 : 0;
1803                 change = change ^ spdif_enable;
1804                 if (change) {
1805                         if (spdif_enable) {
1806                                 codec->spdif_mask |= 0x01;
1807                                 snd_ali_enable_spdif_in(codec);
1808                         } else {
1809                                 codec->spdif_mask &= ~(0x01);
1810                                 snd_ali_disable_spdif_in(codec);
1811                         }
1812                 }
1813                 break;
1814         default:
1815                 break;
1816         }
1817         spin_unlock_irq(&codec->reg_lock);
1818
1819         return change;
1820 }
1821
1822 static struct snd_kcontrol_new snd_ali5451_mixer_spdif[] = {
1823         /* spdif aplayback switch */
1824         /* FIXME: "IEC958 Playback Switch" may conflict with one on ac97_codec */
1825         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Output ",NONE,SWITCH), 0, 0),
1826         /* spdif out to spdif channel */
1827         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("Channel Output ",NONE,SWITCH), 0, 1),
1828         /* spdif in from spdif channel */
1829         ALI5451_SPDIF(SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH), 0, 2)
1830 };
1831
1832 static int snd_ali_mixer(struct snd_ali *codec)
1833 {
1834         struct snd_ac97_template ac97;
1835         unsigned int idx;
1836         int i, err;
1837         static struct snd_ac97_bus_ops ops = {
1838                 .write = snd_ali_codec_write,
1839                 .read = snd_ali_codec_read,
1840         };
1841
1842         err = snd_ac97_bus(codec->card, 0, &ops, codec, &codec->ac97_bus);
1843         if (err < 0)
1844                 return err;
1845
1846         memset(&ac97, 0, sizeof(ac97));
1847         ac97.private_data = codec;
1848
1849         for (i = 0; i < codec->num_of_codecs; i++) {
1850                 ac97.num = i;
1851                 err = snd_ac97_mixer(codec->ac97_bus, &ac97, &codec->ac97[i]);
1852                 if (err < 0) {
1853                         dev_err(codec->card->dev,
1854                                    "ali mixer %d creating error.\n", i);
1855                         if (i == 0)
1856                                 return err;
1857                         codec->num_of_codecs = 1;
1858                         break;
1859                 }
1860         }
1861
1862         if (codec->spdif_support) {
1863                 for (idx = 0; idx < ARRAY_SIZE(snd_ali5451_mixer_spdif); idx++) {
1864                         err = snd_ctl_add(codec->card,
1865                                           snd_ctl_new1(&snd_ali5451_mixer_spdif[idx], codec));
1866                         if (err < 0)
1867                                 return err;
1868                 }
1869         }
1870         return 0;
1871 }
1872
1873 #ifdef CONFIG_PM_SLEEP
1874 static int ali_suspend(struct device *dev)
1875 {
1876         struct snd_card *card = dev_get_drvdata(dev);
1877         struct snd_ali *chip = card->private_data;
1878         struct snd_ali_image *im;
1879         int i, j;
1880
1881         im = chip->image;
1882         if (!im)
1883                 return 0;
1884
1885         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1886         for (i = 0; i < chip->num_of_codecs; i++) {
1887                 snd_pcm_suspend_all(chip->pcm[i]);
1888                 snd_ac97_suspend(chip->ac97[i]);
1889         }
1890
1891         spin_lock_irq(&chip->reg_lock);
1892
1893         im->regs[ALI_MISCINT >> 2] = inl(ALI_REG(chip, ALI_MISCINT));
1894         /* im->regs[ALI_START >> 2] = inl(ALI_REG(chip, ALI_START)); */
1895         im->regs[ALI_STOP >> 2] = inl(ALI_REG(chip, ALI_STOP));
1896
1897         /* disable all IRQ bits */
1898         outl(0, ALI_REG(chip, ALI_MISCINT));
1899
1900         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1901                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP))
1902                         continue;
1903                 im->regs[i] = inl(ALI_REG(chip, i*4));
1904         }
1905
1906         for (i = 0; i < ALI_CHANNELS; i++) {
1907                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1908                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1909                         im->channel_regs[i][j] = inl(ALI_REG(chip, j*4 + 0xe0));
1910         }
1911
1912         /* stop all HW channel */
1913         outl(0xffffffff, ALI_REG(chip, ALI_STOP));
1914
1915         spin_unlock_irq(&chip->reg_lock);
1916         return 0;
1917 }
1918
1919 static int ali_resume(struct device *dev)
1920 {
1921         struct snd_card *card = dev_get_drvdata(dev);
1922         struct snd_ali *chip = card->private_data;
1923         struct snd_ali_image *im;
1924         int i, j;
1925
1926         im = chip->image;
1927         if (!im)
1928                 return 0;
1929
1930         spin_lock_irq(&chip->reg_lock);
1931
1932         for (i = 0; i < ALI_CHANNELS; i++) {
1933                 outb(i, ALI_REG(chip, ALI_GC_CIR));
1934                 for (j = 0; j < ALI_CHANNEL_REGS; j++)
1935                         outl(im->channel_regs[i][j], ALI_REG(chip, j*4 + 0xe0));
1936         }
1937
1938         for (i = 0; i < ALI_GLOBAL_REGS; i++) {
1939                 if ((i*4 == ALI_MISCINT) || (i*4 == ALI_STOP) ||
1940                     (i*4 == ALI_START))
1941                         continue;
1942                 outl(im->regs[i], ALI_REG(chip, i*4));
1943         }
1944
1945         /* start HW channel */
1946         outl(im->regs[ALI_START >> 2], ALI_REG(chip, ALI_START));
1947         /* restore IRQ enable bits */
1948         outl(im->regs[ALI_MISCINT >> 2], ALI_REG(chip, ALI_MISCINT));
1949
1950         spin_unlock_irq(&chip->reg_lock);
1951
1952         for (i = 0 ; i < chip->num_of_codecs; i++)
1953                 snd_ac97_resume(chip->ac97[i]);
1954
1955         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1956         return 0;
1957 }
1958
1959 static SIMPLE_DEV_PM_OPS(ali_pm, ali_suspend, ali_resume);
1960 #define ALI_PM_OPS      &ali_pm
1961 #else
1962 #define ALI_PM_OPS      NULL
1963 #endif /* CONFIG_PM_SLEEP */
1964
1965 static int snd_ali_free(struct snd_ali * codec)
1966 {
1967         if (codec->hw_initialized)
1968                 snd_ali_disable_address_interrupt(codec);
1969         if (codec->irq >= 0)
1970                 free_irq(codec->irq, codec);
1971         if (codec->port)
1972                 pci_release_regions(codec->pci);
1973         pci_disable_device(codec->pci);
1974 #ifdef CONFIG_PM_SLEEP
1975         kfree(codec->image);
1976 #endif
1977         pci_dev_put(codec->pci_m1533);
1978         pci_dev_put(codec->pci_m7101);
1979         kfree(codec);
1980         return 0;
1981 }
1982
1983 static int snd_ali_chip_init(struct snd_ali *codec)
1984 {
1985         unsigned int legacy;
1986         unsigned char temp;
1987         struct pci_dev *pci_dev;
1988
1989         dev_dbg(codec->card->dev, "chip initializing ...\n");
1990
1991         if (snd_ali_reset_5451(codec)) {
1992                 dev_err(codec->card->dev, "ali_chip_init: reset 5451 error.\n");
1993                 return -1;
1994         }
1995
1996         if (codec->revision == ALI_5451_V02) {
1997                 pci_dev = codec->pci_m1533;
1998                 pci_read_config_byte(pci_dev, 0x59, &temp);
1999                 temp |= 0x80;
2000                 pci_write_config_byte(pci_dev, 0x59, temp);
2001
2002                 pci_dev = codec->pci_m7101;
2003                 pci_read_config_byte(pci_dev, 0xb8, &temp);
2004                 temp |= 0x20;
2005                 pci_write_config_byte(pci_dev, 0xB8, temp);
2006         }
2007
2008         pci_read_config_dword(codec->pci, 0x44, &legacy);
2009         legacy &= 0xff00ff00;
2010         legacy |= 0x000800aa;
2011         pci_write_config_dword(codec->pci, 0x44, legacy);
2012
2013         outl(0x80000001, ALI_REG(codec, ALI_GLOBAL_CONTROL));
2014         outl(0x00000000, ALI_REG(codec, ALI_AINTEN));
2015         outl(0xffffffff, ALI_REG(codec, ALI_AINT));
2016         outl(0x00000000, ALI_REG(codec, ALI_VOLUME));
2017         outb(0x10,       ALI_REG(codec, ALI_MPUR2));
2018
2019         codec->ac97_ext_id = snd_ali_codec_peek(codec, 0, AC97_EXTENDED_ID);
2020         codec->ac97_ext_status = snd_ali_codec_peek(codec, 0,
2021                                                     AC97_EXTENDED_STATUS);
2022         if (codec->spdif_support) {
2023                 snd_ali_enable_spdif_out(codec);
2024                 codec->spdif_mask = 0x00000002;
2025         }
2026
2027         codec->num_of_codecs = 1;
2028
2029         /* secondary codec - modem */
2030         if (inl(ALI_REG(codec, ALI_SCTRL)) & ALI_SCTRL_CODEC2_READY) {
2031                 codec->num_of_codecs++;
2032                 outl(inl(ALI_REG(codec, ALI_SCTRL)) |
2033                      (ALI_SCTRL_LINE_IN2 | ALI_SCTRL_GPIO_IN2 |
2034                       ALI_SCTRL_LINE_OUT_EN),
2035                      ALI_REG(codec, ALI_SCTRL));
2036         }
2037
2038         dev_dbg(codec->card->dev, "chip initialize succeed.\n");
2039         return 0;
2040
2041 }
2042
2043 /* proc for register dump */
2044 static void snd_ali_proc_read(struct snd_info_entry *entry,
2045                               struct snd_info_buffer *buf)
2046 {
2047         struct snd_ali *codec = entry->private_data;
2048         int i;
2049         for (i = 0; i < 256 ; i+= 4)
2050                 snd_iprintf(buf, "%02x: %08x\n", i, inl(ALI_REG(codec, i)));
2051 }
2052
2053 static void snd_ali_proc_init(struct snd_ali *codec)
2054 {
2055         struct snd_info_entry *entry;
2056         if (!snd_card_proc_new(codec->card, "ali5451", &entry))
2057                 snd_info_set_text_ops(entry, codec, snd_ali_proc_read);
2058 }
2059
2060 static int snd_ali_resources(struct snd_ali *codec)
2061 {
2062         int err;
2063
2064         dev_dbg(codec->card->dev, "resources allocation ...\n");
2065         err = pci_request_regions(codec->pci, "ALI 5451");
2066         if (err < 0)
2067                 return err;
2068         codec->port = pci_resource_start(codec->pci, 0);
2069
2070         if (request_irq(codec->pci->irq, snd_ali_card_interrupt,
2071                         IRQF_SHARED, KBUILD_MODNAME, codec)) {
2072                 dev_err(codec->card->dev, "Unable to request irq.\n");
2073                 return -EBUSY;
2074         }
2075         codec->irq = codec->pci->irq;
2076         dev_dbg(codec->card->dev, "resources allocated.\n");
2077         return 0;
2078 }
2079 static int snd_ali_dev_free(struct snd_device *device)
2080 {
2081         struct snd_ali *codec = device->device_data;
2082         snd_ali_free(codec);
2083         return 0;
2084 }
2085
2086 static int snd_ali_create(struct snd_card *card,
2087                           struct pci_dev *pci,
2088                           int pcm_streams,
2089                           int spdif_support,
2090                           struct snd_ali **r_ali)
2091 {
2092         struct snd_ali *codec;
2093         int i, err;
2094         unsigned short cmdw;
2095         static struct snd_device_ops ops = {
2096                 .dev_free = snd_ali_dev_free,
2097         };
2098
2099         *r_ali = NULL;
2100
2101         dev_dbg(card->dev, "creating ...\n");
2102
2103         /* enable PCI device */
2104         err = pci_enable_device(pci);
2105         if (err < 0)
2106                 return err;
2107         /* check, if we can restrict PCI DMA transfers to 31 bits */
2108         if (pci_set_dma_mask(pci, DMA_BIT_MASK(31)) < 0 ||
2109             pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(31)) < 0) {
2110                 dev_err(card->dev,
2111                         "architecture does not support 31bit PCI busmaster DMA\n");
2112                 pci_disable_device(pci);
2113                 return -ENXIO;
2114         }
2115
2116         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
2117         if (!codec) {
2118                 pci_disable_device(pci);
2119                 return -ENOMEM;
2120         }
2121
2122         spin_lock_init(&codec->reg_lock);
2123         spin_lock_init(&codec->voice_alloc);
2124
2125         codec->card = card;
2126         codec->pci = pci;
2127         codec->irq = -1;
2128         codec->revision = pci->revision;
2129         codec->spdif_support = spdif_support;
2130
2131         if (pcm_streams < 1)
2132                 pcm_streams = 1;
2133         if (pcm_streams > 32)
2134                 pcm_streams = 32;
2135
2136         pci_set_master(pci);
2137         pci_read_config_word(pci, PCI_COMMAND, &cmdw);
2138         if ((cmdw & PCI_COMMAND_IO) != PCI_COMMAND_IO) {
2139                 cmdw |= PCI_COMMAND_IO;
2140                 pci_write_config_word(pci, PCI_COMMAND, cmdw);
2141         }
2142         pci_set_master(pci);
2143
2144         if (snd_ali_resources(codec)) {
2145                 snd_ali_free(codec);
2146                 return -EBUSY;
2147         }
2148
2149         synchronize_irq(pci->irq);
2150
2151         codec->synth.chmap = 0;
2152         codec->synth.chcnt = 0;
2153         codec->spdif_mask = 0;
2154         codec->synth.synthcount = 0;
2155
2156         if (codec->revision == ALI_5451_V02)
2157                 codec->chregs.regs.ac97read = ALI_AC97_WRITE;
2158         else
2159                 codec->chregs.regs.ac97read = ALI_AC97_READ;
2160         codec->chregs.regs.ac97write = ALI_AC97_WRITE;
2161
2162         codec->chregs.regs.start  = ALI_START;
2163         codec->chregs.regs.stop   = ALI_STOP;
2164         codec->chregs.regs.aint   = ALI_AINT;
2165         codec->chregs.regs.ainten = ALI_AINTEN;
2166
2167         codec->chregs.data.start  = 0x00;
2168         codec->chregs.data.stop   = 0x00;
2169         codec->chregs.data.aint   = 0x00;
2170         codec->chregs.data.ainten = 0x00;
2171
2172         /* M1533: southbridge */
2173         codec->pci_m1533 = pci_get_device(0x10b9, 0x1533, NULL);
2174         if (!codec->pci_m1533) {
2175                 dev_err(card->dev, "cannot find ALi 1533 chip.\n");
2176                 snd_ali_free(codec);
2177                 return -ENODEV;
2178         }
2179         /* M7101: power management */
2180         codec->pci_m7101 = pci_get_device(0x10b9, 0x7101, NULL);
2181         if (!codec->pci_m7101 && codec->revision == ALI_5451_V02) {
2182                 dev_err(card->dev, "cannot find ALi 7101 chip.\n");
2183                 snd_ali_free(codec);
2184                 return -ENODEV;
2185         }
2186
2187         dev_dbg(card->dev, "snd_device_new is called.\n");
2188         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, codec, &ops);
2189         if (err < 0) {
2190                 snd_ali_free(codec);
2191                 return err;
2192         }
2193
2194         /* initialise synth voices*/
2195         for (i = 0; i < ALI_CHANNELS; i++)
2196                 codec->synth.voices[i].number = i;
2197
2198         err = snd_ali_chip_init(codec);
2199         if (err < 0) {
2200                 dev_err(card->dev, "ali create: chip init error.\n");
2201                 return err;
2202         }
2203
2204 #ifdef CONFIG_PM_SLEEP
2205         codec->image = kmalloc(sizeof(*codec->image), GFP_KERNEL);
2206         if (!codec->image)
2207                 dev_warn(card->dev, "can't allocate apm buffer\n");
2208 #endif
2209
2210         snd_ali_enable_address_interrupt(codec);
2211         codec->hw_initialized = 1;
2212
2213         *r_ali = codec;
2214         dev_dbg(card->dev, "created.\n");
2215         return 0;
2216 }
2217
2218 static int snd_ali_probe(struct pci_dev *pci,
2219                          const struct pci_device_id *pci_id)
2220 {
2221         struct snd_card *card;
2222         struct snd_ali *codec;
2223         int err;
2224
2225         dev_dbg(&pci->dev, "probe ...\n");
2226
2227         err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card);
2228         if (err < 0)
2229                 return err;
2230
2231         err = snd_ali_create(card, pci, pcm_channels, spdif, &codec);
2232         if (err < 0)
2233                 goto error;
2234         card->private_data = codec;
2235
2236         dev_dbg(&pci->dev, "mixer building ...\n");
2237         err = snd_ali_mixer(codec);
2238         if (err < 0)
2239                 goto error;
2240
2241         dev_dbg(&pci->dev, "pcm building ...\n");
2242         err = snd_ali_build_pcms(codec);
2243         if (err < 0)
2244                 goto error;
2245
2246         snd_ali_proc_init(codec);
2247
2248         strcpy(card->driver, "ALI5451");
2249         strcpy(card->shortname, "ALI 5451");
2250
2251         sprintf(card->longname, "%s at 0x%lx, irq %i",
2252                 card->shortname, codec->port, codec->irq);
2253
2254         dev_dbg(&pci->dev, "register card.\n");
2255         err = snd_card_register(card);
2256         if (err < 0)
2257                 goto error;
2258
2259         pci_set_drvdata(pci, card);
2260         return 0;
2261
2262  error:
2263         snd_card_free(card);
2264         return err;
2265 }
2266
2267 static void snd_ali_remove(struct pci_dev *pci)
2268 {
2269         snd_card_free(pci_get_drvdata(pci));
2270 }
2271
2272 static struct pci_driver ali5451_driver = {
2273         .name = KBUILD_MODNAME,
2274         .id_table = snd_ali_ids,
2275         .probe = snd_ali_probe,
2276         .remove = snd_ali_remove,
2277         .driver = {
2278                 .pm = ALI_PM_OPS,
2279         },
2280 };
2281
2282 module_pci_driver(ali5451_driver);