git.oblomov.eu Git - linux-2.6/blob - sound/pci/hda/hda_intel.c

   1 /*
   2  *
   3  *  hda_intel.c - Implementation of primary alsa driver code base
   4  *                for Intel HD Audio.
   5  *
   6  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
   7  *
   8  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   9  *                     PeiSen Hou <pshou@realtek.com.tw>
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the Free
  13  *  Software Foundation; either version 2 of the License, or (at your option)
  14  *  any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  19  *  more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along with
  22  *  this program; if not, write to the Free Software Foundation, Inc., 59
  23  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  *
  25  *  CONTACTS:
  26  *
  27  *  Matt Jared          matt.jared@intel.com
  28  *  Andy Kopp           andy.kopp@intel.com
  29  *  Dan Kogan           dan.d.kogan@intel.com
  30  *
  31  *  CHANGES:
  32  *
  33  *  2004.12.01  Major rewrite by tiwai, merged the work of pshou
  34  *
  35  */
  36
  37 #include <asm/io.h>
  38 #include <linux/delay.h>
  39 #include <linux/interrupt.h>
  40 #include <linux/kernel.h>
  41 #include <linux/module.h>
  42 #include <linux/dma-mapping.h>
  43 #include <linux/moduleparam.h>
  44 #include <linux/init.h>
  45 #include <linux/slab.h>
  46 #include <linux/pci.h>
  47 #include <linux/mutex.h>
  48 #include <linux/reboot.h>
  49 #include <sound/core.h>
  50 #include <sound/initval.h>
  51 #include "hda_codec.h"
  52
  53
  54 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  55 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  56 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  57 static char *model[SNDRV_CARDS];
  58 static int position_fix[SNDRV_CARDS];
  59 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
  60 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
  61 static int single_cmd;
  62 static int enable_msi;
  63
  64 module_param_array(index, int, NULL, 0444);
  65 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
  66 module_param_array(id, charp, NULL, 0444);
  67 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
  68 module_param_array(enable, bool, NULL, 0444);
  69 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
  70 module_param_array(model, charp, NULL, 0444);
  71 MODULE_PARM_DESC(model, "Use the given board model.");
  72 module_param_array(position_fix, int, NULL, 0444);
  73 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
  74                  "(0 = auto, 1 = none, 2 = POSBUF).");
  75 module_param_array(bdl_pos_adj, int, NULL, 0644);
  76 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
  77 module_param_array(probe_mask, int, NULL, 0444);
  78 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
  79 module_param(single_cmd, bool, 0444);
  80 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
  81                  "(for debugging only).");
  82 module_param(enable_msi, int, 0444);
  83 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
  84
  85 #ifdef CONFIG_SND_HDA_POWER_SAVE
  86 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
  87 module_param(power_save, int, 0644);
  88 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
  89                  "(in second, 0 = disable).");
  90
  91 /* reset the HD-audio controller in power save mode.
  92  * this may give more power-saving, but will take longer time to
  93  * wake up.
  94  */
  95 static int power_save_controller = 1;
  96 module_param(power_save_controller, bool, 0644);
  97 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
  98 #endif
  99
 100 MODULE_LICENSE("GPL");
 101 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
 102                          "{Intel, ICH6M},"
 103                          "{Intel, ICH7},"
 104                          "{Intel, ESB2},"
 105                          "{Intel, ICH8},"
 106                          "{Intel, ICH9},"
 107                          "{Intel, ICH10},"
 108                          "{Intel, PCH},"
 109                          "{Intel, SCH},"
 110                          "{ATI, SB450},"
 111                          "{ATI, SB600},"
 112                          "{ATI, RS600},"
 113                          "{ATI, RS690},"
 114                          "{ATI, RS780},"
 115                          "{ATI, R600},"
 116                          "{ATI, RV630},"
 117                          "{ATI, RV610},"
 118                          "{ATI, RV670},"
 119                          "{ATI, RV635},"
 120                          "{ATI, RV620},"
 121                          "{ATI, RV770},"
 122                          "{VIA, VT8251},"
 123                          "{VIA, VT8237A},"
 124                          "{SiS, SIS966},"
 125                          "{ULI, M5461}}");
 126 MODULE_DESCRIPTION("Intel HDA driver");
 127
 128 #define SFX     "hda-intel: "
 129
 130
 131 /*
 132  * registers
 133  */
 134 #define ICH6_REG_GCAP                   0x00
 135 #define ICH6_REG_VMIN                   0x02
 136 #define ICH6_REG_VMAJ                   0x03
 137 #define ICH6_REG_OUTPAY                 0x04
 138 #define ICH6_REG_INPAY                  0x06
 139 #define ICH6_REG_GCTL                   0x08
 140 #define ICH6_REG_WAKEEN                 0x0c
 141 #define ICH6_REG_STATESTS               0x0e
 142 #define ICH6_REG_GSTS                   0x10
 143 #define ICH6_REG_INTCTL                 0x20
 144 #define ICH6_REG_INTSTS                 0x24
 145 #define ICH6_REG_WALCLK                 0x30
 146 #define ICH6_REG_SYNC                   0x34
 147 #define ICH6_REG_CORBLBASE              0x40
 148 #define ICH6_REG_CORBUBASE              0x44
 149 #define ICH6_REG_CORBWP                 0x48
 150 #define ICH6_REG_CORBRP                 0x4A
 151 #define ICH6_REG_CORBCTL                0x4c
 152 #define ICH6_REG_CORBSTS                0x4d
 153 #define ICH6_REG_CORBSIZE               0x4e
 154
 155 #define ICH6_REG_RIRBLBASE              0x50
 156 #define ICH6_REG_RIRBUBASE              0x54
 157 #define ICH6_REG_RIRBWP                 0x58
 158 #define ICH6_REG_RINTCNT                0x5a
 159 #define ICH6_REG_RIRBCTL                0x5c
 160 #define ICH6_REG_RIRBSTS                0x5d
 161 #define ICH6_REG_RIRBSIZE               0x5e
 162
 163 #define ICH6_REG_IC                     0x60
 164 #define ICH6_REG_IR                     0x64
 165 #define ICH6_REG_IRS                    0x68
 166 #define   ICH6_IRS_VALID        (1<<1)
 167 #define   ICH6_IRS_BUSY         (1<<0)
 168
 169 #define ICH6_REG_DPLBASE                0x70
 170 #define ICH6_REG_DPUBASE                0x74
 171 #define   ICH6_DPLBASE_ENABLE   0x1     /* Enable position buffer */
 172
 173 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
 174 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 175
 176 /* stream register offsets from stream base */
 177 #define ICH6_REG_SD_CTL                 0x00
 178 #define ICH6_REG_SD_STS                 0x03
 179 #define ICH6_REG_SD_LPIB                0x04
 180 #define ICH6_REG_SD_CBL                 0x08
 181 #define ICH6_REG_SD_LVI                 0x0c
 182 #define ICH6_REG_SD_FIFOW               0x0e
 183 #define ICH6_REG_SD_FIFOSIZE            0x10
 184 #define ICH6_REG_SD_FORMAT              0x12
 185 #define ICH6_REG_SD_BDLPL               0x18
 186 #define ICH6_REG_SD_BDLPU               0x1c
 187
 188 /* PCI space */
 189 #define ICH6_PCIREG_TCSEL       0x44
 190
 191 /*
 192  * other constants
 193  */
 194
 195 /* max number of SDs */
 196 /* ICH, ATI and VIA have 4 playback and 4 capture */
 197 #define ICH6_NUM_CAPTURE        4
 198 #define ICH6_NUM_PLAYBACK       4
 199
 200 /* ULI has 6 playback and 5 capture */
 201 #define ULI_NUM_CAPTURE         5
 202 #define ULI_NUM_PLAYBACK        6
 203
 204 /* ATI HDMI has 1 playback and 0 capture */
 205 #define ATIHDMI_NUM_CAPTURE     0
 206 #define ATIHDMI_NUM_PLAYBACK    1
 207
 208 /* TERA has 4 playback and 3 capture */
 209 #define TERA_NUM_CAPTURE        3
 210 #define TERA_NUM_PLAYBACK       4
 211
 212 /* this number is statically defined for simplicity */
 213 #define MAX_AZX_DEV             16
 214
 215 /* max number of fragments - we may use more if allocating more pages for BDL */
 216 #define BDL_SIZE                4096
 217 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
 218 #define AZX_MAX_FRAG            32
 219 /* max buffer size - no h/w limit, you can increase as you like */
 220 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
 221 /* max number of PCM devics per card */
 222 #define AZX_MAX_PCMS            8
 223
 224 /* RIRB int mask: overrun[2], response[0] */
 225 #define RIRB_INT_RESPONSE       0x01
 226 #define RIRB_INT_OVERRUN        0x04
 227 #define RIRB_INT_MASK           0x05
 228
 229 /* STATESTS int mask: S3,SD2,SD1,SD0 */
 230 #define AZX_MAX_CODECS          4
 231 #define STATESTS_INT_MASK       0x0f
 232
 233 /* SD_CTL bits */
 234 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
 235 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
 236 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
 237 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
 238 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
 239 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
 240 #define SD_CTL_STREAM_TAG_SHIFT 20
 241
 242 /* SD_CTL and SD_STS */
 243 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
 244 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
 245 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
 246 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
 247                                  SD_INT_COMPLETE)
 248
 249 /* SD_STS */
 250 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
 251
 252 /* INTCTL and INTSTS */
 253 #define ICH6_INT_ALL_STREAM     0xff       /* all stream interrupts */
 254 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
 255 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
 256
 257 /* GCTL unsolicited response enable bit */
 258 #define ICH6_GCTL_UREN          (1<<8)
 259
 260 /* GCTL reset bit */
 261 #define ICH6_GCTL_RESET         (1<<0)
 262
 263 /* CORB/RIRB control, read/write pointer */
 264 #define ICH6_RBCTL_DMA_EN       0x02    /* enable DMA */
 265 #define ICH6_RBCTL_IRQ_EN       0x01    /* enable IRQ */
 266 #define ICH6_RBRWP_CLR          0x8000  /* read/write pointer clear */
 267 /* below are so far hardcoded - should read registers in future */
 268 #define ICH6_MAX_CORB_ENTRIES   256
 269 #define ICH6_MAX_RIRB_ENTRIES   256
 270
 271 /* position fix mode */
 272 enum {
 273         POS_FIX_AUTO,
 274         POS_FIX_LPIB,
 275         POS_FIX_POSBUF,
 276 };
 277
 278 /* Defines for ATI HD Audio support in SB450 south bridge */
 279 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
 280 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
 281
 282 /* Defines for Nvidia HDA support */
 283 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
 284 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
 285 #define NVIDIA_HDA_ISTRM_COH          0x4d
 286 #define NVIDIA_HDA_OSTRM_COH          0x4c
 287 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
 288
 289 /* Defines for Intel SCH HDA snoop control */
 290 #define INTEL_SCH_HDA_DEVC      0x78
 291 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
 292
 293 /* Define IN stream 0 FIFO size offset in VIA controller */
 294 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
 295 /* Define VIA HD Audio Device ID*/
 296 #define VIA_HDAC_DEVICE_ID              0x3288
 297
 298 /* HD Audio class code */
 299 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO   0x0403
 300
 301 /*
 302  */
 303
 304 struct azx_dev {
 305         struct snd_dma_buffer bdl; /* BDL buffer */
 306         u32 *posbuf;            /* position buffer pointer */
 307
 308         unsigned int bufsize;   /* size of the play buffer in bytes */
 309         unsigned int period_bytes; /* size of the period in bytes */
 310         unsigned int frags;     /* number for period in the play buffer */
 311         unsigned int fifo_size; /* FIFO size */
 312
 313         void __iomem *sd_addr;  /* stream descriptor pointer */
 314
 315         u32 sd_int_sta_mask;    /* stream int status mask */
 316
 317         /* pcm support */
 318         struct snd_pcm_substream *substream;    /* assigned substream,
 319                                                  * set in PCM open
 320                                                  */
 321         unsigned int format_val;        /* format value to be set in the
 322                                          * controller and the codec
 323                                          */
 324         unsigned char stream_tag;       /* assigned stream */
 325         unsigned char index;            /* stream index */
 326
 327         unsigned int opened :1;
 328         unsigned int running :1;
 329         unsigned int irq_pending :1;
 330         unsigned int irq_ignore :1;
 331         /*
 332          * For VIA:
 333          *  A flag to ensure DMA position is 0
 334          *  when link position is not greater than FIFO size
 335          */
 336         unsigned int insufficient :1;
 337 };
 338
 339 /* CORB/RIRB */
 340 struct azx_rb {
 341         u32 *buf;               /* CORB/RIRB buffer
 342                                  * Each CORB entry is 4byte, RIRB is 8byte
 343                                  */
 344         dma_addr_t addr;        /* physical address of CORB/RIRB buffer */
 345         /* for RIRB */
 346         unsigned short rp, wp;  /* read/write pointers */
 347         int cmds;               /* number of pending requests */
 348         u32 res;                /* last read value */
 349 };
 350
 351 struct azx {
 352         struct snd_card *card;
 353         struct pci_dev *pci;
 354         int dev_index;
 355
 356         /* chip type specific */
 357         int driver_type;
 358         int playback_streams;
 359         int playback_index_offset;
 360         int capture_streams;
 361         int capture_index_offset;
 362         int num_streams;
 363
 364         /* pci resources */
 365         unsigned long addr;
 366         void __iomem *remap_addr;
 367         int irq;
 368
 369         /* locks */
 370         spinlock_t reg_lock;
 371         struct mutex open_mutex;
 372
 373         /* streams (x num_streams) */
 374         struct azx_dev *azx_dev;
 375
 376         /* PCM */
 377         struct snd_pcm *pcm[AZX_MAX_PCMS];
 378
 379         /* HD codec */
 380         unsigned short codec_mask;
 381         struct hda_bus *bus;
 382
 383         /* CORB/RIRB */
 384         struct azx_rb corb;
 385         struct azx_rb rirb;
 386
 387         /* CORB/RIRB and position buffers */
 388         struct snd_dma_buffer rb;
 389         struct snd_dma_buffer posbuf;
 390
 391         /* flags */
 392         int position_fix;
 393         unsigned int running :1;
 394         unsigned int initialized :1;
 395         unsigned int single_cmd :1;
 396         unsigned int polling_mode :1;
 397         unsigned int msi :1;
 398         unsigned int irq_pending_warned :1;
 399         unsigned int via_dmapos_patch :1; /* enable DMA-position fix for VIA */
 400         unsigned int probing :1; /* codec probing phase */
 401
 402         /* for debugging */
 403         unsigned int last_cmd;  /* last issued command (to sync) */
 404
 405         /* for pending irqs */
 406         struct work_struct irq_pending_work;
 407
 408         /* reboot notifier (for mysterious hangup problem at power-down) */
 409         struct notifier_block reboot_notifier;
 410 };
 411
 412 /* driver types */
 413 enum {
 414         AZX_DRIVER_ICH,
 415         AZX_DRIVER_SCH,
 416         AZX_DRIVER_ATI,
 417         AZX_DRIVER_ATIHDMI,
 418         AZX_DRIVER_VIA,
 419         AZX_DRIVER_SIS,
 420         AZX_DRIVER_ULI,
 421         AZX_DRIVER_NVIDIA,
 422         AZX_DRIVER_TERA,
 423         AZX_DRIVER_GENERIC,
 424         AZX_NUM_DRIVERS, /* keep this as last entry */
 425 };
 426
 427 static char *driver_short_names[] __devinitdata = {
 428         [AZX_DRIVER_ICH] = "HDA Intel",
 429         [AZX_DRIVER_SCH] = "HDA Intel MID",
 430         [AZX_DRIVER_ATI] = "HDA ATI SB",
 431         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 432         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
 433         [AZX_DRIVER_SIS] = "HDA SIS966",
 434         [AZX_DRIVER_ULI] = "HDA ULI M5461",
 435         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
 436         [AZX_DRIVER_TERA] = "HDA Teradici",
 437         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
 438 };
 439
 440 /*
 441  * macros for easy use
 442  */
 443 #define azx_writel(chip,reg,value) \
 444         writel(value, (chip)->remap_addr + ICH6_REG_##reg)
 445 #define azx_readl(chip,reg) \
 446         readl((chip)->remap_addr + ICH6_REG_##reg)
 447 #define azx_writew(chip,reg,value) \
 448         writew(value, (chip)->remap_addr + ICH6_REG_##reg)
 449 #define azx_readw(chip,reg) \
 450         readw((chip)->remap_addr + ICH6_REG_##reg)
 451 #define azx_writeb(chip,reg,value) \
 452         writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
 453 #define azx_readb(chip,reg) \
 454         readb((chip)->remap_addr + ICH6_REG_##reg)
 455
 456 #define azx_sd_writel(dev,reg,value) \
 457         writel(value, (dev)->sd_addr + ICH6_REG_##reg)
 458 #define azx_sd_readl(dev,reg) \
 459         readl((dev)->sd_addr + ICH6_REG_##reg)
 460 #define azx_sd_writew(dev,reg,value) \
 461         writew(value, (dev)->sd_addr + ICH6_REG_##reg)
 462 #define azx_sd_readw(dev,reg) \
 463         readw((dev)->sd_addr + ICH6_REG_##reg)
 464 #define azx_sd_writeb(dev,reg,value) \
 465         writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
 466 #define azx_sd_readb(dev,reg) \
 467         readb((dev)->sd_addr + ICH6_REG_##reg)
 468
 469 /* for pcm support */
 470 #define get_azx_dev(substream) (substream->runtime->private_data)
 471
 472 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
 473
 474 /*
 475  * Interface for HD codec
 476  */
 477
 478 /*
 479  * CORB / RIRB interface
 480  */
 481 static int azx_alloc_cmd_io(struct azx *chip)
 482 {
 483         int err;
 484
 485         /* single page (at least 4096 bytes) must suffice for both ringbuffes */
 486         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 487                                   snd_dma_pci_data(chip->pci),
 488                                   PAGE_SIZE, &chip->rb);
 489         if (err < 0) {
 490                 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
 491                 return err;
 492         }
 493         return 0;
 494 }
 495
 496 static void azx_init_cmd_io(struct azx *chip)
 497 {
 498         /* CORB set up */
 499         chip->corb.addr = chip->rb.addr;
 500         chip->corb.buf = (u32 *)chip->rb.area;
 501         azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
 502         azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
 503
 504         /* set the corb size to 256 entries (ULI requires explicitly) */
 505         azx_writeb(chip, CORBSIZE, 0x02);
 506         /* set the corb write pointer to 0 */
 507         azx_writew(chip, CORBWP, 0);
 508         /* reset the corb hw read pointer */
 509         azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
 510         /* enable corb dma */
 511         azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
 512
 513         /* RIRB set up */
 514         chip->rirb.addr = chip->rb.addr + 2048;
 515         chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
 516         azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
 517         azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
 518
 519         /* set the rirb size to 256 entries (ULI requires explicitly) */
 520         azx_writeb(chip, RIRBSIZE, 0x02);
 521         /* reset the rirb hw write pointer */
 522         azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
 523         /* set N=1, get RIRB response interrupt for new entry */
 524         azx_writew(chip, RINTCNT, 1);
 525         /* enable rirb dma and response irq */
 526         azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
 527         chip->rirb.rp = chip->rirb.cmds = 0;
 528 }
 529
 530 static void azx_free_cmd_io(struct azx *chip)
 531 {
 532         /* disable ringbuffer DMAs */
 533         azx_writeb(chip, RIRBCTL, 0);
 534         azx_writeb(chip, CORBCTL, 0);
 535 }
 536
 537 /* send a command */
 538 static int azx_corb_send_cmd(struct hda_bus *bus, u32 val)
 539 {
 540         struct azx *chip = bus->private_data;
 541         unsigned int wp;
 542
 543         /* add command to corb */
 544         wp = azx_readb(chip, CORBWP);
 545         wp++;
 546         wp %= ICH6_MAX_CORB_ENTRIES;
 547
 548         spin_lock_irq(&chip->reg_lock);
 549         chip->rirb.cmds++;
 550         chip->corb.buf[wp] = cpu_to_le32(val);
 551         azx_writel(chip, CORBWP, wp);
 552         spin_unlock_irq(&chip->reg_lock);
 553
 554         return 0;
 555 }
 556
 557 #define ICH6_RIRB_EX_UNSOL_EV   (1<<4)
 558
 559 /* retrieve RIRB entry - called from interrupt handler */
 560 static void azx_update_rirb(struct azx *chip)
 561 {
 562         unsigned int rp, wp;
 563         u32 res, res_ex;
 564
 565         wp = azx_readb(chip, RIRBWP);
 566         if (wp == chip->rirb.wp)
 567                 return;
 568         chip->rirb.wp = wp;
 569
 570         while (chip->rirb.rp != wp) {
 571                 chip->rirb.rp++;
 572                 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
 573
 574                 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
 575                 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
 576                 res = le32_to_cpu(chip->rirb.buf[rp]);
 577                 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
 578                         snd_hda_queue_unsol_event(chip->bus, res, res_ex);
 579                 else if (chip->rirb.cmds) {
 580                         chip->rirb.res = res;
 581                         smp_wmb();
 582                         chip->rirb.cmds--;
 583                 }
 584         }
 585 }
 586
 587 /* receive a response */
 588 static unsigned int azx_rirb_get_response(struct hda_bus *bus)
 589 {
 590         struct azx *chip = bus->private_data;
 591         unsigned long timeout;
 592
 593  again:
 594         timeout = jiffies + msecs_to_jiffies(1000);
 595         for (;;) {
 596                 if (chip->polling_mode) {
 597                         spin_lock_irq(&chip->reg_lock);
 598                         azx_update_rirb(chip);
 599                         spin_unlock_irq(&chip->reg_lock);
 600                 }
 601                 if (!chip->rirb.cmds) {
 602                         smp_rmb();
 603                         return chip->rirb.res; /* the last value */
 604                 }
 605                 if (time_after(jiffies, timeout))
 606                         break;
 607                 if (bus->needs_damn_long_delay)
 608                         msleep(2); /* temporary workaround */
 609                 else {
 610                         udelay(10);
 611                         cond_resched();
 612                 }
 613         }
 614
 615         if (chip->msi) {
 616                 snd_printk(KERN_WARNING "hda_intel: No response from codec, "
 617                            "disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
 618                 free_irq(chip->irq, chip);
 619                 chip->irq = -1;
 620                 pci_disable_msi(chip->pci);
 621                 chip->msi = 0;
 622                 if (azx_acquire_irq(chip, 1) < 0)
 623                         return -1;
 624                 goto again;
 625         }
 626
 627         if (!chip->polling_mode) {
 628                 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
 629                            "switching to polling mode: last cmd=0x%08x\n",
 630                            chip->last_cmd);
 631                 chip->polling_mode = 1;
 632                 goto again;
 633         }
 634
 635         if (chip->probing) {
 636                 /* If this critical timeout happens during the codec probing
 637                  * phase, this is likely an access to a non-existing codec
 638                  * slot.  Better to return an error and reset the system.
 639                  */
 640                 return -1;
 641         }
 642
 643         snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
 644                    "switching to single_cmd mode: last cmd=0x%08x\n",
 645                    chip->last_cmd);
 646         chip->rirb.rp = azx_readb(chip, RIRBWP);
 647         chip->rirb.cmds = 0;
 648         /* switch to single_cmd mode */
 649         chip->single_cmd = 1;
 650         azx_free_cmd_io(chip);
 651         return -1;
 652 }
 653
 654 /*
 655  * Use the single immediate command instead of CORB/RIRB for simplicity
 656  *
 657  * Note: according to Intel, this is not preferred use.  The command was
 658  *       intended for the BIOS only, and may get confused with unsolicited
 659  *       responses.  So, we shouldn't use it for normal operation from the
 660  *       driver.
 661  *       I left the codes, however, for debugging/testing purposes.
 662  */
 663
 664 /* send a command */
 665 static int azx_single_send_cmd(struct hda_bus *bus, u32 val)
 666 {
 667         struct azx *chip = bus->private_data;
 668         int timeout = 50;
 669
 670         while (timeout--) {
 671                 /* check ICB busy bit */
 672                 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
 673                         /* Clear IRV valid bit */
 674                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
 675                                    ICH6_IRS_VALID);
 676                         azx_writel(chip, IC, val);
 677                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
 678                                    ICH6_IRS_BUSY);
 679                         return 0;
 680                 }
 681                 udelay(1);
 682         }
 683         if (printk_ratelimit())
 684                 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
 685                            azx_readw(chip, IRS), val);
 686         return -EIO;
 687 }
 688
 689 /* receive a response */
 690 static unsigned int azx_single_get_response(struct hda_bus *bus)
 691 {
 692         struct azx *chip = bus->private_data;
 693         int timeout = 50;
 694
 695         while (timeout--) {
 696                 /* check IRV busy bit */
 697                 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
 698                         return azx_readl(chip, IR);
 699                 udelay(1);
 700         }
 701         if (printk_ratelimit())
 702                 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
 703                            azx_readw(chip, IRS));
 704         return (unsigned int)-1;
 705 }
 706
 707 /*
 708  * The below are the main callbacks from hda_codec.
 709  *
 710  * They are just the skeleton to call sub-callbacks according to the
 711  * current setting of chip->single_cmd.
 712  */
 713
 714 /* send a command */
 715 static int azx_send_cmd(struct hda_bus *bus, unsigned int val)
 716 {
 717         struct azx *chip = bus->private_data;
 718
 719         chip->last_cmd = val;
 720         if (chip->single_cmd)
 721                 return azx_single_send_cmd(bus, val);
 722         else
 723                 return azx_corb_send_cmd(bus, val);
 724 }
 725
 726 /* get a response */
 727 static unsigned int azx_get_response(struct hda_bus *bus)
 728 {
 729         struct azx *chip = bus->private_data;
 730         if (chip->single_cmd)
 731                 return azx_single_get_response(bus);
 732         else
 733                 return azx_rirb_get_response(bus);
 734 }
 735
 736 #ifdef CONFIG_SND_HDA_POWER_SAVE
 737 static void azx_power_notify(struct hda_bus *bus);
 738 #endif
 739
 740 /* reset codec link */
 741 static int azx_reset(struct azx *chip)
 742 {
 743         int count;
 744
 745         /* clear STATESTS */
 746         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
 747
 748         /* reset controller */
 749         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
 750
 751         count = 50;
 752         while (azx_readb(chip, GCTL) && --count)
 753                 msleep(1);
 754
 755         /* delay for >= 100us for codec PLL to settle per spec
 756          * Rev 0.9 section 5.5.1
 757          */
 758         msleep(1);
 759
 760         /* Bring controller out of reset */
 761         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
 762
 763         count = 50;
 764         while (!azx_readb(chip, GCTL) && --count)
 765                 msleep(1);
 766
 767         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
 768         msleep(1);
 769
 770         /* check to see if controller is ready */
 771         if (!azx_readb(chip, GCTL)) {
 772                 snd_printd("azx_reset: controller not ready!\n");
 773                 return -EBUSY;
 774         }
 775
 776         /* Accept unsolicited responses */
 777         azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
 778
 779         /* detect codecs */
 780         if (!chip->codec_mask) {
 781                 chip->codec_mask = azx_readw(chip, STATESTS);
 782                 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
 783         }
 784
 785         return 0;
 786 }
 787
 788
 789 /*
 790  * Lowlevel interface
 791  */
 792
 793 /* enable interrupts */
 794 static void azx_int_enable(struct azx *chip)
 795 {
 796         /* enable controller CIE and GIE */
 797         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
 798                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
 799 }
 800
 801 /* disable interrupts */
 802 static void azx_int_disable(struct azx *chip)
 803 {
 804         int i;
 805
 806         /* disable interrupts in stream descriptor */
 807         for (i = 0; i < chip->num_streams; i++) {
 808                 struct azx_dev *azx_dev = &chip->azx_dev[i];
 809                 azx_sd_writeb(azx_dev, SD_CTL,
 810                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
 811         }
 812
 813         /* disable SIE for all streams */
 814         azx_writeb(chip, INTCTL, 0);
 815
 816         /* disable controller CIE and GIE */
 817         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
 818                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
 819 }
 820
 821 /* clear interrupts */
 822 static void azx_int_clear(struct azx *chip)
 823 {
 824         int i;
 825
 826         /* clear stream status */
 827         for (i = 0; i < chip->num_streams; i++) {
 828                 struct azx_dev *azx_dev = &chip->azx_dev[i];
 829                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 830         }
 831
 832         /* clear STATESTS */
 833         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
 834
 835         /* clear rirb status */
 836         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 837
 838         /* clear int status */
 839         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
 840 }
 841
 842 /* start a stream */
 843 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
 844 {
 845         /*
 846          * Before stream start, initialize parameter
 847          */
 848         azx_dev->insufficient = 1;
 849
 850         /* enable SIE */
 851         azx_writeb(chip, INTCTL,
 852                    azx_readb(chip, INTCTL) | (1 << azx_dev->index));
 853         /* set DMA start and interrupt mask */
 854         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
 855                       SD_CTL_DMA_START | SD_INT_MASK);
 856 }
 857
 858 /* stop a stream */
 859 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
 860 {
 861         /* stop DMA */
 862         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
 863                       ~(SD_CTL_DMA_START | SD_INT_MASK));
 864         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
 865         /* disable SIE */
 866         azx_writeb(chip, INTCTL,
 867                    azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
 868 }
 869
 870
 871 /*
 872  * reset and start the controller registers
 873  */
 874 static void azx_init_chip(struct azx *chip)
 875 {
 876         if (chip->initialized)
 877                 return;
 878
 879         /* reset controller */
 880         azx_reset(chip);
 881
 882         /* initialize interrupts */
 883         azx_int_clear(chip);
 884         azx_int_enable(chip);
 885
 886         /* initialize the codec command I/O */
 887         if (!chip->single_cmd)
 888                 azx_init_cmd_io(chip);
 889
 890         /* program the position buffer */
 891         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
 892         azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
 893
 894         chip->initialized = 1;
 895 }
 896
 897 /*
 898  * initialize the PCI registers
 899  */
 900 /* update bits in a PCI register byte */
 901 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
 902                             unsigned char mask, unsigned char val)
 903 {
 904         unsigned char data;
 905
 906         pci_read_config_byte(pci, reg, &data);
 907         data &= ~mask;
 908         data |= (val & mask);
 909         pci_write_config_byte(pci, reg, data);
 910 }
 911
 912 static void azx_init_pci(struct azx *chip)
 913 {
 914         unsigned short snoop;
 915
 916         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
 917          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
 918          * Ensuring these bits are 0 clears playback static on some HD Audio
 919          * codecs
 920          */
 921         update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
 922
 923         switch (chip->driver_type) {
 924         case AZX_DRIVER_ATI:
 925                 /* For ATI SB450 azalia HD audio, we need to enable snoop */
 926                 update_pci_byte(chip->pci,
 927                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
 928                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
 929                 break;
 930         case AZX_DRIVER_NVIDIA:
 931                 /* For NVIDIA HDA, enable snoop */
 932                 update_pci_byte(chip->pci,
 933                                 NVIDIA_HDA_TRANSREG_ADDR,
 934                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
 935                 update_pci_byte(chip->pci,
 936                                 NVIDIA_HDA_ISTRM_COH,
 937                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 938                 update_pci_byte(chip->pci,
 939                                 NVIDIA_HDA_OSTRM_COH,
 940                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 941                 break;
 942         case AZX_DRIVER_SCH:
 943                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
 944                 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
 945                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, \
 946                                 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
 947                         pci_read_config_word(chip->pci,
 948                                 INTEL_SCH_HDA_DEVC, &snoop);
 949                         snd_printdd("HDA snoop disabled, enabling ... %s\n",\
 950                                 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) \
 951                                 ? "Failed" : "OK");
 952                 }
 953                 break;
 954
 955         }
 956 }
 957
 958
 959 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
 960
 961 /*
 962  * interrupt handler
 963  */
 964 static irqreturn_t azx_interrupt(int irq, void *dev_id)
 965 {
 966         struct azx *chip = dev_id;
 967         struct azx_dev *azx_dev;
 968         u32 status;
 969         int i;
 970
 971         spin_lock(&chip->reg_lock);
 972
 973         status = azx_readl(chip, INTSTS);
 974         if (status == 0) {
 975                 spin_unlock(&chip->reg_lock);
 976                 return IRQ_NONE;
 977         }
 978
 979         for (i = 0; i < chip->num_streams; i++) {
 980                 azx_dev = &chip->azx_dev[i];
 981                 if (status & azx_dev->sd_int_sta_mask) {
 982                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 983                         if (!azx_dev->substream || !azx_dev->running)
 984                                 continue;
 985                         /* ignore the first dummy IRQ (due to pos_adj) */
 986                         if (azx_dev->irq_ignore) {
 987                                 azx_dev->irq_ignore = 0;
 988                                 continue;
 989                         }
 990                         /* check whether this IRQ is really acceptable */
 991                         if (azx_position_ok(chip, azx_dev)) {
 992                                 azx_dev->irq_pending = 0;
 993                                 spin_unlock(&chip->reg_lock);
 994                                 snd_pcm_period_elapsed(azx_dev->substream);
 995                                 spin_lock(&chip->reg_lock);
 996                         } else {
 997                                 /* bogus IRQ, process it later */
 998                                 azx_dev->irq_pending = 1;
 999                                 schedule_work(&chip->irq_pending_work);
1000                         }
1001                 }
1002         }
1003
1004         /* clear rirb int */
1005         status = azx_readb(chip, RIRBSTS);
1006         if (status & RIRB_INT_MASK) {
1007                 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
1008                         azx_update_rirb(chip);
1009                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
1010         }
1011
1012 #if 0
1013         /* clear state status int */
1014         if (azx_readb(chip, STATESTS) & 0x04)
1015                 azx_writeb(chip, STATESTS, 0x04);
1016 #endif
1017         spin_unlock(&chip->reg_lock);
1018
1019         return IRQ_HANDLED;
1020 }
1021
1022
1023 /*
1024  * set up a BDL entry
1025  */
1026 static int setup_bdle(struct snd_pcm_substream *substream,
1027                       struct azx_dev *azx_dev, u32 **bdlp,
1028                       int ofs, int size, int with_ioc)
1029 {
1030         u32 *bdl = *bdlp;
1031
1032         while (size > 0) {
1033                 dma_addr_t addr;
1034                 int chunk;
1035
1036                 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1037                         return -EINVAL;
1038
1039                 addr = snd_pcm_sgbuf_get_addr(substream, ofs);
1040                 /* program the address field of the BDL entry */
1041                 bdl[0] = cpu_to_le32((u32)addr);
1042                 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1043                 /* program the size field of the BDL entry */
1044                 chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size);
1045                 bdl[2] = cpu_to_le32(chunk);
1046                 /* program the IOC to enable interrupt
1047                  * only when the whole fragment is processed
1048                  */
1049                 size -= chunk;
1050                 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1051                 bdl += 4;
1052                 azx_dev->frags++;
1053                 ofs += chunk;
1054         }
1055         *bdlp = bdl;
1056         return ofs;
1057 }
1058
1059 /*
1060  * set up BDL entries
1061  */
1062 static int azx_setup_periods(struct azx *chip,
1063                              struct snd_pcm_substream *substream,
1064                              struct azx_dev *azx_dev)
1065 {
1066         u32 *bdl;
1067         int i, ofs, periods, period_bytes;
1068         int pos_adj;
1069
1070         /* reset BDL address */
1071         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1072         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1073
1074         period_bytes = snd_pcm_lib_period_bytes(substream);
1075         azx_dev->period_bytes = period_bytes;
1076         periods = azx_dev->bufsize / period_bytes;
1077
1078         /* program the initial BDL entries */
1079         bdl = (u32 *)azx_dev->bdl.area;
1080         ofs = 0;
1081         azx_dev->frags = 0;
1082         azx_dev->irq_ignore = 0;
1083         pos_adj = bdl_pos_adj[chip->dev_index];
1084         if (pos_adj > 0) {
1085                 struct snd_pcm_runtime *runtime = substream->runtime;
1086                 int pos_align = pos_adj;
1087                 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1088                 if (!pos_adj)
1089                         pos_adj = pos_align;
1090                 else
1091                         pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1092                                 pos_align;
1093                 pos_adj = frames_to_bytes(runtime, pos_adj);
1094                 if (pos_adj >= period_bytes) {
1095                         snd_printk(KERN_WARNING "Too big adjustment %d\n",
1096                                    bdl_pos_adj[chip->dev_index]);
1097                         pos_adj = 0;
1098                 } else {
1099                         ofs = setup_bdle(substream, azx_dev,
1100                                          &bdl, ofs, pos_adj, 1);
1101                         if (ofs < 0)
1102                                 goto error;
1103                         azx_dev->irq_ignore = 1;
1104                 }
1105         } else
1106                 pos_adj = 0;
1107         for (i = 0; i < periods; i++) {
1108                 if (i == periods - 1 && pos_adj)
1109                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1110                                          period_bytes - pos_adj, 0);
1111                 else
1112                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1113                                          period_bytes, 1);
1114                 if (ofs < 0)
1115                         goto error;
1116         }
1117         return 0;
1118
1119  error:
1120         snd_printk(KERN_ERR "Too many BDL entries: buffer=%d, period=%d\n",
1121                    azx_dev->bufsize, period_bytes);
1122         /* reset */
1123         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1124         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1125         return -EINVAL;
1126 }
1127
1128 /*
1129  * set up the SD for streaming
1130  */
1131 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1132 {
1133         unsigned char val;
1134         int timeout;
1135
1136         /* make sure the run bit is zero for SD */
1137         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1138                       ~SD_CTL_DMA_START);
1139         /* reset stream */
1140         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1141                       SD_CTL_STREAM_RESET);
1142         udelay(3);
1143         timeout = 300;
1144         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1145                --timeout)
1146                 ;
1147         val &= ~SD_CTL_STREAM_RESET;
1148         azx_sd_writeb(azx_dev, SD_CTL, val);
1149         udelay(3);
1150
1151         timeout = 300;
1152         /* waiting for hardware to report that the stream is out of reset */
1153         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1154                --timeout)
1155                 ;
1156
1157         /* program the stream_tag */
1158         azx_sd_writel(azx_dev, SD_CTL,
1159                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1160                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1161
1162         /* program the length of samples in cyclic buffer */
1163         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1164
1165         /* program the stream format */
1166         /* this value needs to be the same as the one programmed */
1167         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1168
1169         /* program the stream LVI (last valid index) of the BDL */
1170         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1171
1172         /* program the BDL address */
1173         /* lower BDL address */
1174         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1175         /* upper BDL address */
1176         azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1177
1178         /* enable the position buffer */
1179         if (chip->position_fix == POS_FIX_POSBUF ||
1180             chip->position_fix == POS_FIX_AUTO ||
1181             chip->via_dmapos_patch) {
1182                 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1183                         azx_writel(chip, DPLBASE,
1184                                 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1185         }
1186
1187         /* set the interrupt enable bits in the descriptor control register */
1188         azx_sd_writel(azx_dev, SD_CTL,
1189                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1190
1191         return 0;
1192 }
1193
1194 /*
1195  * Probe the given codec address
1196  */
1197 static int probe_codec(struct azx *chip, int addr)
1198 {
1199         unsigned int cmd = (addr << 28) | (AC_NODE_ROOT << 20) |
1200                 (AC_VERB_PARAMETERS << 8) | AC_PAR_VENDOR_ID;
1201         unsigned int res;
1202
1203         chip->probing = 1;
1204         azx_send_cmd(chip->bus, cmd);
1205         res = azx_get_response(chip->bus);
1206         chip->probing = 0;
1207         if (res == -1)
1208                 return -EIO;
1209         snd_printdd("hda_intel: codec #%d probed OK\n", addr);
1210         return 0;
1211 }
1212
1213 static int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1214                                  struct hda_pcm *cpcm);
1215 static void azx_stop_chip(struct azx *chip);
1216
1217 /*
1218  * Codec initialization
1219  */
1220
1221 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1222 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] __devinitdata = {
1223         [AZX_DRIVER_TERA] = 1,
1224 };
1225
1226 static int __devinit azx_codec_create(struct azx *chip, const char *model,
1227                                       unsigned int codec_probe_mask)
1228 {
1229         struct hda_bus_template bus_temp;
1230         int c, codecs, err;
1231         int max_slots;
1232
1233         memset(&bus_temp, 0, sizeof(bus_temp));
1234         bus_temp.private_data = chip;
1235         bus_temp.modelname = model;
1236         bus_temp.power_save = &power_save;
1237         bus_temp.pci = chip->pci;
1238         bus_temp.ops.command = azx_send_cmd;
1239         bus_temp.ops.get_response = azx_get_response;
1240         bus_temp.ops.attach_pcm = azx_attach_pcm_stream;
1241 #ifdef CONFIG_SND_HDA_POWER_SAVE
1242         bus_temp.ops.pm_notify = azx_power_notify;
1243 #endif
1244
1245         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1246         if (err < 0)
1247                 return err;
1248
1249         if (chip->driver_type == AZX_DRIVER_NVIDIA)
1250                 chip->bus->needs_damn_long_delay = 1;
1251
1252         codecs = 0;
1253         max_slots = azx_max_codecs[chip->driver_type];
1254         if (!max_slots)
1255                 max_slots = AZX_MAX_CODECS;
1256
1257         /* First try to probe all given codec slots */
1258         for (c = 0; c < max_slots; c++) {
1259                 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1260                         if (probe_codec(chip, c) < 0) {
1261                                 /* Some BIOSen give you wrong codec addresses
1262                                  * that don't exist
1263                                  */
1264                                 snd_printk(KERN_WARNING
1265                                            "hda_intel: Codec #%d probe error; "
1266                                            "disabling it...\n", c);
1267                                 chip->codec_mask &= ~(1 << c);
1268                                 /* More badly, accessing to a non-existing
1269                                  * codec often screws up the controller chip,
1270                                  * and distrubs the further communications.
1271                                  * Thus if an error occurs during probing,
1272                                  * better to reset the controller chip to
1273                                  * get back to the sanity state.
1274                                  */
1275                                 azx_stop_chip(chip);
1276                                 azx_init_chip(chip);
1277                         }
1278                 }
1279         }
1280
1281         /* Then create codec instances */
1282         for (c = 0; c < max_slots; c++) {
1283                 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1284                         struct hda_codec *codec;
1285                         err = snd_hda_codec_new(chip->bus, c, &codec);
1286                         if (err < 0)
1287                                 continue;
1288                         codecs++;
1289                 }
1290         }
1291         if (!codecs) {
1292                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1293                 return -ENXIO;
1294         }
1295
1296         return 0;
1297 }
1298
1299
1300 /*
1301  * PCM support
1302  */
1303
1304 /* assign a stream for the PCM */
1305 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1306 {
1307         int dev, i, nums;
1308         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1309                 dev = chip->playback_index_offset;
1310                 nums = chip->playback_streams;
1311         } else {
1312                 dev = chip->capture_index_offset;
1313                 nums = chip->capture_streams;
1314         }
1315         for (i = 0; i < nums; i++, dev++)
1316                 if (!chip->azx_dev[dev].opened) {
1317                         chip->azx_dev[dev].opened = 1;
1318                         return &chip->azx_dev[dev];
1319                 }
1320         return NULL;
1321 }
1322
1323 /* release the assigned stream */
1324 static inline void azx_release_device(struct azx_dev *azx_dev)
1325 {
1326         azx_dev->opened = 0;
1327 }
1328
1329 static struct snd_pcm_hardware azx_pcm_hw = {
1330         .info =                 (SNDRV_PCM_INFO_MMAP |
1331                                  SNDRV_PCM_INFO_INTERLEAVED |
1332                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1333                                  SNDRV_PCM_INFO_MMAP_VALID |
1334                                  /* No full-resume yet implemented */
1335                                  /* SNDRV_PCM_INFO_RESUME |*/
1336                                  SNDRV_PCM_INFO_PAUSE |
1337                                  SNDRV_PCM_INFO_SYNC_START),
1338         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1339         .rates =                SNDRV_PCM_RATE_48000,
1340         .rate_min =             48000,
1341         .rate_max =             48000,
1342         .channels_min =         2,
1343         .channels_max =         2,
1344         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1345         .period_bytes_min =     128,
1346         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1347         .periods_min =          2,
1348         .periods_max =          AZX_MAX_FRAG,
1349         .fifo_size =            0,
1350 };
1351
1352 struct azx_pcm {
1353         struct azx *chip;
1354         struct hda_codec *codec;
1355         struct hda_pcm_stream *hinfo[2];
1356 };
1357
1358 static int azx_pcm_open(struct snd_pcm_substream *substream)
1359 {
1360         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1361         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1362         struct azx *chip = apcm->chip;
1363         struct azx_dev *azx_dev;
1364         struct snd_pcm_runtime *runtime = substream->runtime;
1365         unsigned long flags;
1366         int err;
1367
1368         mutex_lock(&chip->open_mutex);
1369         azx_dev = azx_assign_device(chip, substream->stream);
1370         if (azx_dev == NULL) {
1371                 mutex_unlock(&chip->open_mutex);
1372                 return -EBUSY;
1373         }
1374         runtime->hw = azx_pcm_hw;
1375         runtime->hw.channels_min = hinfo->channels_min;
1376         runtime->hw.channels_max = hinfo->channels_max;
1377         runtime->hw.formats = hinfo->formats;
1378         runtime->hw.rates = hinfo->rates;
1379         snd_pcm_limit_hw_rates(runtime);
1380         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1381         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1382                                    128);
1383         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1384                                    128);
1385         snd_hda_power_up(apcm->codec);
1386         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1387         if (err < 0) {
1388                 azx_release_device(azx_dev);
1389                 snd_hda_power_down(apcm->codec);
1390                 mutex_unlock(&chip->open_mutex);
1391                 return err;
1392         }
1393         spin_lock_irqsave(&chip->reg_lock, flags);
1394         azx_dev->substream = substream;
1395         azx_dev->running = 0;
1396         spin_unlock_irqrestore(&chip->reg_lock, flags);
1397
1398         runtime->private_data = azx_dev;
1399         snd_pcm_set_sync(substream);
1400         mutex_unlock(&chip->open_mutex);
1401         return 0;
1402 }
1403
1404 static int azx_pcm_close(struct snd_pcm_substream *substream)
1405 {
1406         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1407         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1408         struct azx *chip = apcm->chip;
1409         struct azx_dev *azx_dev = get_azx_dev(substream);
1410         unsigned long flags;
1411
1412         mutex_lock(&chip->open_mutex);
1413         spin_lock_irqsave(&chip->reg_lock, flags);
1414         azx_dev->substream = NULL;
1415         azx_dev->running = 0;
1416         spin_unlock_irqrestore(&chip->reg_lock, flags);
1417         azx_release_device(azx_dev);
1418         hinfo->ops.close(hinfo, apcm->codec, substream);
1419         snd_hda_power_down(apcm->codec);
1420         mutex_unlock(&chip->open_mutex);
1421         return 0;
1422 }
1423
1424 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1425                              struct snd_pcm_hw_params *hw_params)
1426 {
1427         return snd_pcm_lib_malloc_pages(substream,
1428                                         params_buffer_bytes(hw_params));
1429 }
1430
1431 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1432 {
1433         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1434         struct azx_dev *azx_dev = get_azx_dev(substream);
1435         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1436
1437         /* reset BDL address */
1438         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1439         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1440         azx_sd_writel(azx_dev, SD_CTL, 0);
1441
1442         hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1443
1444         return snd_pcm_lib_free_pages(substream);
1445 }
1446
1447 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1448 {
1449         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1450         struct azx *chip = apcm->chip;
1451         struct azx_dev *azx_dev = get_azx_dev(substream);
1452         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1453         struct snd_pcm_runtime *runtime = substream->runtime;
1454
1455         azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1456         azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1457                                                          runtime->channels,
1458                                                          runtime->format,
1459                                                          hinfo->maxbps);
1460         if (!azx_dev->format_val) {
1461                 snd_printk(KERN_ERR SFX
1462                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1463                            runtime->rate, runtime->channels, runtime->format);
1464                 return -EINVAL;
1465         }
1466
1467         snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1468                     azx_dev->bufsize, azx_dev->format_val);
1469         if (azx_setup_periods(chip, substream, azx_dev) < 0)
1470                 return -EINVAL;
1471         azx_setup_controller(chip, azx_dev);
1472         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1473                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1474         else
1475                 azx_dev->fifo_size = 0;
1476
1477         return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1478                                   azx_dev->format_val, substream);
1479 }
1480
1481 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1482 {
1483         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1484         struct azx *chip = apcm->chip;
1485         struct azx_dev *azx_dev;
1486         struct snd_pcm_substream *s;
1487         int start, nsync = 0, sbits = 0;
1488         int nwait, timeout;
1489
1490         switch (cmd) {
1491         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1492         case SNDRV_PCM_TRIGGER_RESUME:
1493         case SNDRV_PCM_TRIGGER_START:
1494                 start = 1;
1495                 break;
1496         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1497         case SNDRV_PCM_TRIGGER_SUSPEND:
1498         case SNDRV_PCM_TRIGGER_STOP:
1499                 start = 0;
1500                 break;
1501         default:
1502                 return -EINVAL;
1503         }
1504
1505         snd_pcm_group_for_each_entry(s, substream) {
1506                 if (s->pcm->card != substream->pcm->card)
1507                         continue;
1508                 azx_dev = get_azx_dev(s);
1509                 sbits |= 1 << azx_dev->index;
1510                 nsync++;
1511                 snd_pcm_trigger_done(s, substream);
1512         }
1513
1514         spin_lock(&chip->reg_lock);
1515         if (nsync > 1) {
1516                 /* first, set SYNC bits of corresponding streams */
1517                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1518         }
1519         snd_pcm_group_for_each_entry(s, substream) {
1520                 if (s->pcm->card != substream->pcm->card)
1521                         continue;
1522                 azx_dev = get_azx_dev(s);
1523                 if (start)
1524                         azx_stream_start(chip, azx_dev);
1525                 else
1526                         azx_stream_stop(chip, azx_dev);
1527                 azx_dev->running = start;
1528         }
1529         spin_unlock(&chip->reg_lock);
1530         if (start) {
1531                 if (nsync == 1)
1532                         return 0;
1533                 /* wait until all FIFOs get ready */
1534                 for (timeout = 5000; timeout; timeout--) {
1535                         nwait = 0;
1536                         snd_pcm_group_for_each_entry(s, substream) {
1537                                 if (s->pcm->card != substream->pcm->card)
1538                                         continue;
1539                                 azx_dev = get_azx_dev(s);
1540                                 if (!(azx_sd_readb(azx_dev, SD_STS) &
1541                                       SD_STS_FIFO_READY))
1542                                         nwait++;
1543                         }
1544                         if (!nwait)
1545                                 break;
1546                         cpu_relax();
1547                 }
1548         } else {
1549                 /* wait until all RUN bits are cleared */
1550                 for (timeout = 5000; timeout; timeout--) {
1551                         nwait = 0;
1552                         snd_pcm_group_for_each_entry(s, substream) {
1553                                 if (s->pcm->card != substream->pcm->card)
1554                                         continue;
1555                                 azx_dev = get_azx_dev(s);
1556                                 if (azx_sd_readb(azx_dev, SD_CTL) &
1557                                     SD_CTL_DMA_START)
1558                                         nwait++;
1559                         }
1560                         if (!nwait)
1561                                 break;
1562                         cpu_relax();
1563                 }
1564         }
1565         if (nsync > 1) {
1566                 spin_lock(&chip->reg_lock);
1567                 /* reset SYNC bits */
1568                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1569                 spin_unlock(&chip->reg_lock);
1570         }
1571         return 0;
1572 }
1573
1574 /* get the current DMA position with correction on VIA chips */
1575 static unsigned int azx_via_get_position(struct azx *chip,
1576                                          struct azx_dev *azx_dev)
1577 {
1578         unsigned int link_pos, mini_pos, bound_pos;
1579         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
1580         unsigned int fifo_size;
1581
1582         link_pos = azx_sd_readl(azx_dev, SD_LPIB);
1583         if (azx_dev->index >= 4) {
1584                 /* Playback, no problem using link position */
1585                 return link_pos;
1586         }
1587
1588         /* Capture */
1589         /* For new chipset,
1590          * use mod to get the DMA position just like old chipset
1591          */
1592         mod_dma_pos = le32_to_cpu(*azx_dev->posbuf);
1593         mod_dma_pos %= azx_dev->period_bytes;
1594
1595         /* azx_dev->fifo_size can't get FIFO size of in stream.
1596          * Get from base address + offset.
1597          */
1598         fifo_size = readw(chip->remap_addr + VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
1599
1600         if (azx_dev->insufficient) {
1601                 /* Link position never gather than FIFO size */
1602                 if (link_pos <= fifo_size)
1603                         return 0;
1604
1605                 azx_dev->insufficient = 0;
1606         }
1607
1608         if (link_pos <= fifo_size)
1609                 mini_pos = azx_dev->bufsize + link_pos - fifo_size;
1610         else
1611                 mini_pos = link_pos - fifo_size;
1612
1613         /* Find nearest previous boudary */
1614         mod_mini_pos = mini_pos % azx_dev->period_bytes;
1615         mod_link_pos = link_pos % azx_dev->period_bytes;
1616         if (mod_link_pos >= fifo_size)
1617                 bound_pos = link_pos - mod_link_pos;
1618         else if (mod_dma_pos >= mod_mini_pos)
1619                 bound_pos = mini_pos - mod_mini_pos;
1620         else {
1621                 bound_pos = mini_pos - mod_mini_pos + azx_dev->period_bytes;
1622                 if (bound_pos >= azx_dev->bufsize)
1623                         bound_pos = 0;
1624         }
1625
1626         /* Calculate real DMA position we want */
1627         return bound_pos + mod_dma_pos;
1628 }
1629
1630 static unsigned int azx_get_position(struct azx *chip,
1631                                      struct azx_dev *azx_dev)
1632 {
1633         unsigned int pos;
1634
1635         if (chip->via_dmapos_patch)
1636                 pos = azx_via_get_position(chip, azx_dev);
1637         else if (chip->position_fix == POS_FIX_POSBUF ||
1638                  chip->position_fix == POS_FIX_AUTO) {
1639                 /* use the position buffer */
1640                 pos = le32_to_cpu(*azx_dev->posbuf);
1641         } else {
1642                 /* read LPIB */
1643                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1644         }
1645         if (pos >= azx_dev->bufsize)
1646                 pos = 0;
1647         return pos;
1648 }
1649
1650 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1651 {
1652         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1653         struct azx *chip = apcm->chip;
1654         struct azx_dev *azx_dev = get_azx_dev(substream);
1655         return bytes_to_frames(substream->runtime,
1656                                azx_get_position(chip, azx_dev));
1657 }
1658
1659 /*
1660  * Check whether the current DMA position is acceptable for updating
1661  * periods.  Returns non-zero if it's OK.
1662  *
1663  * Many HD-audio controllers appear pretty inaccurate about
1664  * the update-IRQ timing.  The IRQ is issued before actually the
1665  * data is processed.  So, we need to process it afterwords in a
1666  * workqueue.
1667  */
1668 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1669 {
1670         unsigned int pos;
1671
1672         pos = azx_get_position(chip, azx_dev);
1673         if (chip->position_fix == POS_FIX_AUTO) {
1674                 if (!pos) {
1675                         printk(KERN_WARNING
1676                                "hda-intel: Invalid position buffer, "
1677                                "using LPIB read method instead.\n");
1678                         chip->position_fix = POS_FIX_LPIB;
1679                         pos = azx_get_position(chip, azx_dev);
1680                 } else
1681                         chip->position_fix = POS_FIX_POSBUF;
1682         }
1683
1684         if (!bdl_pos_adj[chip->dev_index])
1685                 return 1; /* no delayed ack */
1686         if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1687                 return 0; /* NG - it's below the period boundary */
1688         return 1; /* OK, it's fine */
1689 }
1690
1691 /*
1692  * The work for pending PCM period updates.
1693  */
1694 static void azx_irq_pending_work(struct work_struct *work)
1695 {
1696         struct azx *chip = container_of(work, struct azx, irq_pending_work);
1697         int i, pending;
1698
1699         if (!chip->irq_pending_warned) {
1700                 printk(KERN_WARNING
1701                        "hda-intel: IRQ timing workaround is activated "
1702                        "for card #%d. Suggest a bigger bdl_pos_adj.\n",
1703                        chip->card->number);
1704                 chip->irq_pending_warned = 1;
1705         }
1706
1707         for (;;) {
1708                 pending = 0;
1709                 spin_lock_irq(&chip->reg_lock);
1710                 for (i = 0; i < chip->num_streams; i++) {
1711                         struct azx_dev *azx_dev = &chip->azx_dev[i];
1712                         if (!azx_dev->irq_pending ||
1713                             !azx_dev->substream ||
1714                             !azx_dev->running)
1715                                 continue;
1716                         if (azx_position_ok(chip, azx_dev)) {
1717                                 azx_dev->irq_pending = 0;
1718                                 spin_unlock(&chip->reg_lock);
1719                                 snd_pcm_period_elapsed(azx_dev->substream);
1720                                 spin_lock(&chip->reg_lock);
1721                         } else
1722                                 pending++;
1723                 }
1724                 spin_unlock_irq(&chip->reg_lock);
1725                 if (!pending)
1726                         return;
1727                 cond_resched();
1728         }
1729 }
1730
1731 /* clear irq_pending flags and assure no on-going workq */
1732 static void azx_clear_irq_pending(struct azx *chip)
1733 {
1734         int i;
1735
1736         spin_lock_irq(&chip->reg_lock);
1737         for (i = 0; i < chip->num_streams; i++)
1738                 chip->azx_dev[i].irq_pending = 0;
1739         spin_unlock_irq(&chip->reg_lock);
1740         flush_scheduled_work();
1741 }
1742
1743 static struct snd_pcm_ops azx_pcm_ops = {
1744         .open = azx_pcm_open,
1745         .close = azx_pcm_close,
1746         .ioctl = snd_pcm_lib_ioctl,
1747         .hw_params = azx_pcm_hw_params,
1748         .hw_free = azx_pcm_hw_free,
1749         .prepare = azx_pcm_prepare,
1750         .trigger = azx_pcm_trigger,
1751         .pointer = azx_pcm_pointer,
1752         .page = snd_pcm_sgbuf_ops_page,
1753 };
1754
1755 static void azx_pcm_free(struct snd_pcm *pcm)
1756 {
1757         struct azx_pcm *apcm = pcm->private_data;
1758         if (apcm) {
1759                 apcm->chip->pcm[pcm->device] = NULL;
1760                 kfree(apcm);
1761         }
1762 }
1763
1764 static int
1765 azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
1766                       struct hda_pcm *cpcm)
1767 {
1768         struct azx *chip = bus->private_data;
1769         struct snd_pcm *pcm;
1770         struct azx_pcm *apcm;
1771         int pcm_dev = cpcm->device;
1772         int s, err;
1773
1774         if (pcm_dev >= AZX_MAX_PCMS) {
1775                 snd_printk(KERN_ERR SFX "Invalid PCM device number %d\n",
1776                            pcm_dev);
1777                 return -EINVAL;
1778         }
1779         if (chip->pcm[pcm_dev]) {
1780                 snd_printk(KERN_ERR SFX "PCM %d already exists\n", pcm_dev);
1781                 return -EBUSY;
1782         }
1783         err = snd_pcm_new(chip->card, cpcm->name, pcm_dev,
1784                           cpcm->stream[SNDRV_PCM_STREAM_PLAYBACK].substreams,
1785                           cpcm->stream[SNDRV_PCM_STREAM_CAPTURE].substreams,
1786                           &pcm);
1787         if (err < 0)
1788                 return err;
1789         strcpy(pcm->name, cpcm->name);
1790         apcm = kzalloc(sizeof(*apcm), GFP_KERNEL);
1791         if (apcm == NULL)
1792                 return -ENOMEM;
1793         apcm->chip = chip;
1794         apcm->codec = codec;
1795         pcm->private_data = apcm;
1796         pcm->private_free = azx_pcm_free;
1797         if (cpcm->pcm_type == HDA_PCM_TYPE_MODEM)
1798                 pcm->dev_class = SNDRV_PCM_CLASS_MODEM;
1799         chip->pcm[pcm_dev] = pcm;
1800         cpcm->pcm = pcm;
1801         for (s = 0; s < 2; s++) {
1802                 apcm->hinfo[s] = &cpcm->stream[s];
1803                 if (cpcm->stream[s].substreams)
1804                         snd_pcm_set_ops(pcm, s, &azx_pcm_ops);
1805         }
1806         /* buffer pre-allocation */
1807         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1808                                               snd_dma_pci_data(chip->pci),
1809                                               1024 * 64, 32 * 1024 * 1024);
1810         return 0;
1811 }
1812
1813 /*
1814  * mixer creation - all stuff is implemented in hda module
1815  */
1816 static int __devinit azx_mixer_create(struct azx *chip)
1817 {
1818         return snd_hda_build_controls(chip->bus);
1819 }
1820
1821
1822 /*
1823  * initialize SD streams
1824  */
1825 static int __devinit azx_init_stream(struct azx *chip)
1826 {
1827         int i;
1828
1829         /* initialize each stream (aka device)
1830          * assign the starting bdl address to each stream (device)
1831          * and initialize
1832          */
1833         for (i = 0; i < chip->num_streams; i++) {
1834                 struct azx_dev *azx_dev = &chip->azx_dev[i];
1835                 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1836                 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1837                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1838                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1839                 azx_dev->sd_int_sta_mask = 1 << i;
1840                 /* stream tag: must be non-zero and unique */
1841                 azx_dev->index = i;
1842                 azx_dev->stream_tag = i + 1;
1843         }
1844
1845         return 0;
1846 }
1847
1848 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
1849 {
1850         if (request_irq(chip->pci->irq, azx_interrupt,
1851                         chip->msi ? 0 : IRQF_SHARED,
1852                         "HDA Intel", chip)) {
1853                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1854                        "disabling device\n", chip->pci->irq);
1855                 if (do_disconnect)
1856                         snd_card_disconnect(chip->card);
1857                 return -1;
1858         }
1859         chip->irq = chip->pci->irq;
1860         pci_intx(chip->pci, !chip->msi);
1861         return 0;
1862 }
1863
1864
1865 static void azx_stop_chip(struct azx *chip)
1866 {
1867         if (!chip->initialized)
1868                 return;
1869
1870         /* disable interrupts */
1871         azx_int_disable(chip);
1872         azx_int_clear(chip);
1873
1874         /* disable CORB/RIRB */
1875         azx_free_cmd_io(chip);
1876
1877         /* disable position buffer */
1878         azx_writel(chip, DPLBASE, 0);
1879         azx_writel(chip, DPUBASE, 0);
1880
1881         chip->initialized = 0;
1882 }
1883
1884 #ifdef CONFIG_SND_HDA_POWER_SAVE
1885 /* power-up/down the controller */
1886 static void azx_power_notify(struct hda_bus *bus)
1887 {
1888         struct azx *chip = bus->private_data;
1889         struct hda_codec *c;
1890         int power_on = 0;
1891
1892         list_for_each_entry(c, &bus->codec_list, list) {
1893                 if (c->power_on) {
1894                         power_on = 1;
1895                         break;
1896                 }
1897         }
1898         if (power_on)
1899                 azx_init_chip(chip);
1900         else if (chip->running && power_save_controller)
1901                 azx_stop_chip(chip);
1902 }
1903
1904 static int snd_hda_codecs_inuse(struct hda_bus *bus)
1905 {
1906         struct hda_codec *codec;
1907
1908         list_for_each_entry(codec, &bus->codec_list, list) {
1909                 if (snd_hda_codec_needs_resume(codec))
1910                         return 1;
1911         }
1912         return 0;
1913 }
1914 #else /* !CONFIG_SND_HDA_POWER_SAVE */
1915 #define snd_hda_codecs_inuse(bus) 1
1916 #endif /* CONFIG_SND_HDA_POWER_SAVE */
1917
1918 #ifdef CONFIG_PM
1919 /*
1920  * power management
1921  */
1922 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1923 {
1924         struct snd_card *card = pci_get_drvdata(pci);
1925         struct azx *chip = card->private_data;
1926         int i;
1927
1928         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1929         azx_clear_irq_pending(chip);
1930         for (i = 0; i < AZX_MAX_PCMS; i++)
1931                 snd_pcm_suspend_all(chip->pcm[i]);
1932         if (chip->initialized)
1933                 snd_hda_suspend(chip->bus, state);
1934         azx_stop_chip(chip);
1935         if (chip->irq >= 0) {
1936                 free_irq(chip->irq, chip);
1937                 chip->irq = -1;
1938         }
1939         if (chip->msi)
1940                 pci_disable_msi(chip->pci);
1941         pci_disable_device(pci);
1942         pci_save_state(pci);
1943         pci_set_power_state(pci, pci_choose_state(pci, state));
1944         return 0;
1945 }
1946
1947 static int azx_resume(struct pci_dev *pci)
1948 {
1949         struct snd_card *card = pci_get_drvdata(pci);
1950         struct azx *chip = card->private_data;
1951
1952         pci_set_power_state(pci, PCI_D0);
1953         pci_restore_state(pci);
1954         if (pci_enable_device(pci) < 0) {
1955                 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1956                        "disabling device\n");
1957                 snd_card_disconnect(card);
1958                 return -EIO;
1959         }
1960         pci_set_master(pci);
1961         if (chip->msi)
1962                 if (pci_enable_msi(pci) < 0)
1963                         chip->msi = 0;
1964         if (azx_acquire_irq(chip, 1) < 0)
1965                 return -EIO;
1966         azx_init_pci(chip);
1967
1968         if (snd_hda_codecs_inuse(chip->bus))
1969                 azx_init_chip(chip);
1970
1971         snd_hda_resume(chip->bus);
1972         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1973         return 0;
1974 }
1975 #endif /* CONFIG_PM */
1976
1977
1978 /*
1979  * reboot notifier for hang-up problem at power-down
1980  */
1981 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
1982 {
1983         struct azx *chip = container_of(nb, struct azx, reboot_notifier);
1984         azx_stop_chip(chip);
1985         return NOTIFY_OK;
1986 }
1987
1988 static void azx_notifier_register(struct azx *chip)
1989 {
1990         chip->reboot_notifier.notifier_call = azx_halt;
1991         register_reboot_notifier(&chip->reboot_notifier);
1992 }
1993
1994 static void azx_notifier_unregister(struct azx *chip)
1995 {
1996         if (chip->reboot_notifier.notifier_call)
1997                 unregister_reboot_notifier(&chip->reboot_notifier);
1998 }
1999
2000 /*
2001  * destructor
2002  */
2003 static int azx_free(struct azx *chip)
2004 {
2005         int i;
2006
2007         azx_notifier_unregister(chip);
2008
2009         if (chip->initialized) {
2010                 azx_clear_irq_pending(chip);
2011                 for (i = 0; i < chip->num_streams; i++)
2012                         azx_stream_stop(chip, &chip->azx_dev[i]);
2013                 azx_stop_chip(chip);
2014         }
2015
2016         if (chip->irq >= 0)
2017                 free_irq(chip->irq, (void*)chip);
2018         if (chip->msi)
2019                 pci_disable_msi(chip->pci);
2020         if (chip->remap_addr)
2021                 iounmap(chip->remap_addr);
2022
2023         if (chip->azx_dev) {
2024                 for (i = 0; i < chip->num_streams; i++)
2025                         if (chip->azx_dev[i].bdl.area)
2026                                 snd_dma_free_pages(&chip->azx_dev[i].bdl);
2027         }
2028         if (chip->rb.area)
2029                 snd_dma_free_pages(&chip->rb);
2030         if (chip->posbuf.area)
2031                 snd_dma_free_pages(&chip->posbuf);
2032         pci_release_regions(chip->pci);
2033         pci_disable_device(chip->pci);
2034         kfree(chip->azx_dev);
2035         kfree(chip);
2036
2037         return 0;
2038 }
2039
2040 static int azx_dev_free(struct snd_device *device)
2041 {
2042         return azx_free(device->device_data);
2043 }
2044
2045 /*
2046  * white/black-listing for position_fix
2047  */
2048 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
2049         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
2050         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
2051         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
2052         {}
2053 };
2054
2055 static int __devinit check_position_fix(struct azx *chip, int fix)
2056 {
2057         const struct snd_pci_quirk *q;
2058
2059         /* Check VIA HD Audio Controller exist */
2060         if (chip->pci->vendor == PCI_VENDOR_ID_VIA &&
2061             chip->pci->device == VIA_HDAC_DEVICE_ID) {
2062                 chip->via_dmapos_patch = 1;
2063                 /* Use link position directly, avoid any transfer problem. */
2064                 return POS_FIX_LPIB;
2065         }
2066         chip->via_dmapos_patch = 0;
2067
2068         if (fix == POS_FIX_AUTO) {
2069                 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
2070                 if (q) {
2071                         printk(KERN_INFO
2072                                     "hda_intel: position_fix set to %d "
2073                                     "for device %04x:%04x\n",
2074                                     q->value, q->subvendor, q->subdevice);
2075                         return q->value;
2076                 }
2077         }
2078         return fix;
2079 }
2080
2081 /*
2082  * black-lists for probe_mask
2083  */
2084 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
2085         /* Thinkpad often breaks the controller communication when accessing
2086          * to the non-working (or non-existing) modem codec slot.
2087          */
2088         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
2089         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
2090         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
2091         /* broken BIOS */
2092         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
2093         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
2094         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
2095         {}
2096 };
2097
2098 static void __devinit check_probe_mask(struct azx *chip, int dev)
2099 {
2100         const struct snd_pci_quirk *q;
2101
2102         if (probe_mask[dev] == -1) {
2103                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
2104                 if (q) {
2105                         printk(KERN_INFO
2106                                "hda_intel: probe_mask set to 0x%x "
2107                                "for device %04x:%04x\n",
2108                                q->value, q->subvendor, q->subdevice);
2109                         probe_mask[dev] = q->value;
2110                 }
2111         }
2112 }
2113
2114
2115 /*
2116  * constructor
2117  */
2118 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
2119                                 int dev, int driver_type,
2120                                 struct azx **rchip)
2121 {
2122         struct azx *chip;
2123         int i, err;
2124         unsigned short gcap;
2125         static struct snd_device_ops ops = {
2126                 .dev_free = azx_dev_free,
2127         };
2128
2129         *rchip = NULL;
2130
2131         err = pci_enable_device(pci);
2132         if (err < 0)
2133                 return err;
2134
2135         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2136         if (!chip) {
2137                 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2138                 pci_disable_device(pci);
2139                 return -ENOMEM;
2140         }
2141
2142         spin_lock_init(&chip->reg_lock);
2143         mutex_init(&chip->open_mutex);
2144         chip->card = card;
2145         chip->pci = pci;
2146         chip->irq = -1;
2147         chip->driver_type = driver_type;
2148         chip->msi = enable_msi;
2149         chip->dev_index = dev;
2150         INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2151
2152         chip->position_fix = check_position_fix(chip, position_fix[dev]);
2153         check_probe_mask(chip, dev);
2154
2155         chip->single_cmd = single_cmd;
2156
2157         if (bdl_pos_adj[dev] < 0) {
2158                 switch (chip->driver_type) {
2159                 case AZX_DRIVER_ICH:
2160                         bdl_pos_adj[dev] = 1;
2161                         break;
2162                 default:
2163                         bdl_pos_adj[dev] = 32;
2164                         break;
2165                 }
2166         }
2167
2168 #if BITS_PER_LONG != 64
2169         /* Fix up base address on ULI M5461 */
2170         if (chip->driver_type == AZX_DRIVER_ULI) {
2171                 u16 tmp3;
2172                 pci_read_config_word(pci, 0x40, &tmp3);
2173                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2174                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2175         }
2176 #endif
2177
2178         err = pci_request_regions(pci, "ICH HD audio");
2179         if (err < 0) {
2180                 kfree(chip);
2181                 pci_disable_device(pci);
2182                 return err;
2183         }
2184
2185         chip->addr = pci_resource_start(pci, 0);
2186         chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
2187         if (chip->remap_addr == NULL) {
2188                 snd_printk(KERN_ERR SFX "ioremap error\n");
2189                 err = -ENXIO;
2190                 goto errout;
2191         }
2192
2193         if (chip->msi)
2194                 if (pci_enable_msi(pci) < 0)
2195                         chip->msi = 0;
2196
2197         if (azx_acquire_irq(chip, 0) < 0) {
2198                 err = -EBUSY;
2199                 goto errout;
2200         }
2201
2202         pci_set_master(pci);
2203         synchronize_irq(chip->irq);
2204
2205         gcap = azx_readw(chip, GCAP);
2206         snd_printdd("chipset global capabilities = 0x%x\n", gcap);
2207
2208         /* allow 64bit DMA address if supported by H/W */
2209         if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
2210                 pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
2211
2212         /* read number of streams from GCAP register instead of using
2213          * hardcoded value
2214          */
2215         chip->capture_streams = (gcap >> 8) & 0x0f;
2216         chip->playback_streams = (gcap >> 12) & 0x0f;
2217         if (!chip->playback_streams && !chip->capture_streams) {
2218                 /* gcap didn't give any info, switching to old method */
2219
2220                 switch (chip->driver_type) {
2221                 case AZX_DRIVER_ULI:
2222                         chip->playback_streams = ULI_NUM_PLAYBACK;
2223                         chip->capture_streams = ULI_NUM_CAPTURE;
2224                         break;
2225                 case AZX_DRIVER_ATIHDMI:
2226                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2227                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2228                         break;
2229                 case AZX_DRIVER_GENERIC:
2230                 default:
2231                         chip->playback_streams = ICH6_NUM_PLAYBACK;
2232                         chip->capture_streams = ICH6_NUM_CAPTURE;
2233                         break;
2234                 }
2235         }
2236         chip->capture_index_offset = 0;
2237         chip->playback_index_offset = chip->capture_streams;
2238         chip->num_streams = chip->playback_streams + chip->capture_streams;
2239         chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2240                                 GFP_KERNEL);
2241         if (!chip->azx_dev) {
2242                 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
2243                 goto errout;
2244         }
2245
2246         for (i = 0; i < chip->num_streams; i++) {
2247                 /* allocate memory for the BDL for each stream */
2248                 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2249                                           snd_dma_pci_data(chip->pci),
2250                                           BDL_SIZE, &chip->azx_dev[i].bdl);
2251                 if (err < 0) {
2252                         snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2253                         goto errout;
2254                 }
2255         }
2256         /* allocate memory for the position buffer */
2257         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2258                                   snd_dma_pci_data(chip->pci),
2259                                   chip->num_streams * 8, &chip->posbuf);
2260         if (err < 0) {
2261                 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2262                 goto errout;
2263         }
2264         /* allocate CORB/RIRB */
2265         if (!chip->single_cmd) {
2266                 err = azx_alloc_cmd_io(chip);
2267                 if (err < 0)
2268                         goto errout;
2269         }
2270
2271         /* initialize streams */
2272         azx_init_stream(chip);
2273
2274         /* initialize chip */
2275         azx_init_pci(chip);
2276         azx_init_chip(chip);
2277
2278         /* codec detection */
2279         if (!chip->codec_mask) {
2280                 snd_printk(KERN_ERR SFX "no codecs found!\n");
2281                 err = -ENODEV;
2282                 goto errout;
2283         }
2284
2285         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2286         if (err <0) {
2287                 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2288                 goto errout;
2289         }
2290
2291         strcpy(card->driver, "HDA-Intel");
2292         strcpy(card->shortname, driver_short_names[chip->driver_type]);
2293         sprintf(card->longname, "%s at 0x%lx irq %i",
2294                 card->shortname, chip->addr, chip->irq);
2295
2296         *rchip = chip;
2297         return 0;
2298
2299  errout:
2300         azx_free(chip);
2301         return err;
2302 }
2303
2304 static void power_down_all_codecs(struct azx *chip)
2305 {
2306 #ifdef CONFIG_SND_HDA_POWER_SAVE
2307         /* The codecs were powered up in snd_hda_codec_new().
2308          * Now all initialization done, so turn them down if possible
2309          */
2310         struct hda_codec *codec;
2311         list_for_each_entry(codec, &chip->bus->codec_list, list) {
2312                 snd_hda_power_down(codec);
2313         }
2314 #endif
2315 }
2316
2317 static int __devinit azx_probe(struct pci_dev *pci,
2318                                const struct pci_device_id *pci_id)
2319 {
2320         static int dev;
2321         struct snd_card *card;
2322         struct azx *chip;
2323         int err;
2324
2325         if (dev >= SNDRV_CARDS)
2326                 return -ENODEV;
2327         if (!enable[dev]) {
2328                 dev++;
2329                 return -ENOENT;
2330         }
2331
2332         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2333         if (!card) {
2334                 snd_printk(KERN_ERR SFX "Error creating card!\n");
2335                 return -ENOMEM;
2336         }
2337
2338         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2339         if (err < 0)
2340                 goto out_free;
2341         card->private_data = chip;
2342
2343         /* create codec instances */
2344         err = azx_codec_create(chip, model[dev], probe_mask[dev]);
2345         if (err < 0)
2346                 goto out_free;
2347
2348         /* create PCM streams */
2349         err = snd_hda_build_pcms(chip->bus);
2350         if (err < 0)
2351                 goto out_free;
2352
2353         /* create mixer controls */
2354         err = azx_mixer_create(chip);
2355         if (err < 0)
2356                 goto out_free;
2357
2358         snd_card_set_dev(card, &pci->dev);
2359
2360         err = snd_card_register(card);
2361         if (err < 0)
2362                 goto out_free;
2363
2364         pci_set_drvdata(pci, card);
2365         chip->running = 1;
2366         power_down_all_codecs(chip);
2367         azx_notifier_register(chip);
2368
2369         dev++;
2370         return err;
2371 out_free:
2372         snd_card_free(card);
2373         return err;
2374 }
2375
2376 static void __devexit azx_remove(struct pci_dev *pci)
2377 {
2378         snd_card_free(pci_get_drvdata(pci));
2379         pci_set_drvdata(pci, NULL);
2380 }
2381
2382 /* PCI IDs */
2383 static struct pci_device_id azx_ids[] = {
2384         /* ICH 6..10 */
2385         { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2386         { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2387         { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2388         { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2389         { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2390         { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2391         { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2392         { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2393         { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2394         /* PCH */
2395         { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
2396         /* SCH */
2397         { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2398         /* ATI SB 450/600 */
2399         { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2400         { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2401         /* ATI HDMI */
2402         { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2403         { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2404         { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2405         { PCI_DEVICE(0x1002, 0x970f), .driver_data = AZX_DRIVER_ATIHDMI },
2406         { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2407         { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2408         { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2409         { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2410         { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2411         { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2412         { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2413         { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2414         { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2415         { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2416         /* VIA VT8251/VT8237A */
2417         { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2418         /* SIS966 */
2419         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2420         /* ULI M5461 */
2421         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2422         /* NVIDIA MCP */
2423         { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2424         { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2425         { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2426         { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2427         { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2428         { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2429         { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2430         { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2431         { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2432         { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2433         { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2434         { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2435         { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2436         { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2437         { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2438         { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2439         { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2440         { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2441         { PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
2442         { PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
2443         { PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
2444         { PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
2445         /* Teradici */
2446         { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2447         /* AMD Generic, PCI class code and Vendor ID for HD Audio */
2448         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2449           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2450           .class_mask = 0xffffff,
2451           .driver_data = AZX_DRIVER_GENERIC },
2452         { 0, }
2453 };
2454 MODULE_DEVICE_TABLE(pci, azx_ids);
2455
2456 /* pci_driver definition */
2457 static struct pci_driver driver = {
2458         .name = "HDA Intel",
2459         .id_table = azx_ids,
2460         .probe = azx_probe,
2461         .remove = __devexit_p(azx_remove),
2462 #ifdef CONFIG_PM
2463         .suspend = azx_suspend,
2464         .resume = azx_resume,
2465 #endif
2466 };
2467
2468 static int __init alsa_card_azx_init(void)
2469 {
2470         return pci_register_driver(&driver);
2471 }
2472
2473 static void __exit alsa_card_azx_exit(void)
2474 {
2475         pci_unregister_driver(&driver);
2476 }
2477
2478 module_init(alsa_card_azx_init)
2479 module_exit(alsa_card_azx_exit)