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