err.no 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 <sound/core.h>
  49 #include <sound/initval.h>
  50 #include "hda_codec.h"
  51
  52
  53 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
  54 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
  55 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
  56 static char *model[SNDRV_CARDS];
  57 static int position_fix[SNDRV_CARDS];
  58 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
  59 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
  60 static int single_cmd;
  61 static int enable_msi;
  62
  63 module_param_array(index, int, NULL, 0444);
  64 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
  65 module_param_array(id, charp, NULL, 0444);
  66 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
  67 module_param_array(enable, bool, NULL, 0444);
  68 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
  69 module_param_array(model, charp, NULL, 0444);
  70 MODULE_PARM_DESC(model, "Use the given board model.");
  71 module_param_array(position_fix, int, NULL, 0444);
  72 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
  73                  "(0 = auto, 1 = none, 2 = POSBUF).");
  74 module_param_array(bdl_pos_adj, int, NULL, 0644);
  75 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
  76 module_param_array(probe_mask, int, NULL, 0444);
  77 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
  78 module_param(single_cmd, bool, 0444);
  79 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
  80                  "(for debugging only).");
  81 module_param(enable_msi, int, 0444);
  82 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
  83
  84 #ifdef CONFIG_SND_HDA_POWER_SAVE
  85 /* power_save option is defined in hda_codec.c */
  86
  87 /* reset the HD-audio controller in power save mode.
  88  * this may give more power-saving, but will take longer time to
  89  * wake up.
  90  */
  91 static int power_save_controller = 1;
  92 module_param(power_save_controller, bool, 0644);
  93 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
  94 #endif
  95
  96 MODULE_LICENSE("GPL");
  97 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
  98                          "{Intel, ICH6M},"
  99                          "{Intel, ICH7},"
 100                          "{Intel, ESB2},"
 101                          "{Intel, ICH8},"
 102                          "{Intel, ICH9},"
 103                          "{Intel, ICH10},"
 104                          "{Intel, PCH},"
 105                          "{Intel, SCH},"
 106                          "{ATI, SB450},"
 107                          "{ATI, SB600},"
 108                          "{ATI, RS600},"
 109                          "{ATI, RS690},"
 110                          "{ATI, RS780},"
 111                          "{ATI, R600},"
 112                          "{ATI, RV630},"
 113                          "{ATI, RV610},"
 114                          "{ATI, RV670},"
 115                          "{ATI, RV635},"
 116                          "{ATI, RV620},"
 117                          "{ATI, RV770},"
 118                          "{VIA, VT8251},"
 119                          "{VIA, VT8237A},"
 120                          "{SiS, SIS966},"
 121                          "{ULI, M5461}}");
 122 MODULE_DESCRIPTION("Intel HDA driver");
 123
 124 #define SFX     "hda-intel: "
 125
 126
 127 /*
 128  * registers
 129  */
 130 #define ICH6_REG_GCAP                   0x00
 131 #define ICH6_REG_VMIN                   0x02
 132 #define ICH6_REG_VMAJ                   0x03
 133 #define ICH6_REG_OUTPAY                 0x04
 134 #define ICH6_REG_INPAY                  0x06
 135 #define ICH6_REG_GCTL                   0x08
 136 #define ICH6_REG_WAKEEN                 0x0c
 137 #define ICH6_REG_STATESTS               0x0e
 138 #define ICH6_REG_GSTS                   0x10
 139 #define ICH6_REG_INTCTL                 0x20
 140 #define ICH6_REG_INTSTS                 0x24
 141 #define ICH6_REG_WALCLK                 0x30
 142 #define ICH6_REG_SYNC                   0x34
 143 #define ICH6_REG_CORBLBASE              0x40
 144 #define ICH6_REG_CORBUBASE              0x44
 145 #define ICH6_REG_CORBWP                 0x48
 146 #define ICH6_REG_CORBRP                 0x4A
 147 #define ICH6_REG_CORBCTL                0x4c
 148 #define ICH6_REG_CORBSTS                0x4d
 149 #define ICH6_REG_CORBSIZE               0x4e
 150
 151 #define ICH6_REG_RIRBLBASE              0x50
 152 #define ICH6_REG_RIRBUBASE              0x54
 153 #define ICH6_REG_RIRBWP                 0x58
 154 #define ICH6_REG_RINTCNT                0x5a
 155 #define ICH6_REG_RIRBCTL                0x5c
 156 #define ICH6_REG_RIRBSTS                0x5d
 157 #define ICH6_REG_RIRBSIZE               0x5e
 158
 159 #define ICH6_REG_IC                     0x60
 160 #define ICH6_REG_IR                     0x64
 161 #define ICH6_REG_IRS                    0x68
 162 #define   ICH6_IRS_VALID        (1<<1)
 163 #define   ICH6_IRS_BUSY         (1<<0)
 164
 165 #define ICH6_REG_DPLBASE                0x70
 166 #define ICH6_REG_DPUBASE                0x74
 167 #define   ICH6_DPLBASE_ENABLE   0x1     /* Enable position buffer */
 168
 169 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
 170 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 171
 172 /* stream register offsets from stream base */
 173 #define ICH6_REG_SD_CTL                 0x00
 174 #define ICH6_REG_SD_STS                 0x03
 175 #define ICH6_REG_SD_LPIB                0x04
 176 #define ICH6_REG_SD_CBL                 0x08
 177 #define ICH6_REG_SD_LVI                 0x0c
 178 #define ICH6_REG_SD_FIFOW               0x0e
 179 #define ICH6_REG_SD_FIFOSIZE            0x10
 180 #define ICH6_REG_SD_FORMAT              0x12
 181 #define ICH6_REG_SD_BDLPL               0x18
 182 #define ICH6_REG_SD_BDLPU               0x1c
 183
 184 /* PCI space */
 185 #define ICH6_PCIREG_TCSEL       0x44
 186
 187 /*
 188  * other constants
 189  */
 190
 191 /* max number of SDs */
 192 /* ICH, ATI and VIA have 4 playback and 4 capture */
 193 #define ICH6_NUM_CAPTURE        4
 194 #define ICH6_NUM_PLAYBACK       4
 195
 196 /* ULI has 6 playback and 5 capture */
 197 #define ULI_NUM_CAPTURE         5
 198 #define ULI_NUM_PLAYBACK        6
 199
 200 /* ATI HDMI has 1 playback and 0 capture */
 201 #define ATIHDMI_NUM_CAPTURE     0
 202 #define ATIHDMI_NUM_PLAYBACK    1
 203
 204 /* TERA has 4 playback and 3 capture */
 205 #define TERA_NUM_CAPTURE        3
 206 #define TERA_NUM_PLAYBACK       4
 207
 208 /* this number is statically defined for simplicity */
 209 #define MAX_AZX_DEV             16
 210
 211 /* max number of fragments - we may use more if allocating more pages for BDL */
 212 #define BDL_SIZE                4096
 213 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
 214 #define AZX_MAX_FRAG            32
 215 /* max buffer size - no h/w limit, you can increase as you like */
 216 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
 217 /* max number of PCM devics per card */
 218 #define AZX_MAX_PCMS            8
 219
 220 /* RIRB int mask: overrun[2], response[0] */
 221 #define RIRB_INT_RESPONSE       0x01
 222 #define RIRB_INT_OVERRUN        0x04
 223 #define RIRB_INT_MASK           0x05
 224
 225 /* STATESTS int mask: SD2,SD1,SD0 */
 226 #define AZX_MAX_CODECS          3
 227 #define STATESTS_INT_MASK       0x07
 228
 229 /* SD_CTL bits */
 230 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
 231 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
 232 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
 233 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
 234 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
 235 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
 236 #define SD_CTL_STREAM_TAG_SHIFT 20
 237
 238 /* SD_CTL and SD_STS */
 239 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
 240 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
 241 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
 242 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
 243                                  SD_INT_COMPLETE)
 244
 245 /* SD_STS */
 246 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
 247
 248 /* INTCTL and INTSTS */
 249 #define ICH6_INT_ALL_STREAM     0xff       /* all stream interrupts */
 250 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
 251 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
 252
 253 /* GCTL unsolicited response enable bit */
 254 #define ICH6_GCTL_UREN          (1<<8)
 255
 256 /* GCTL reset bit */
 257 #define ICH6_GCTL_RESET         (1<<0)
 258
 259 /* CORB/RIRB control, read/write pointer */
 260 #define ICH6_RBCTL_DMA_EN       0x02    /* enable DMA */
 261 #define ICH6_RBCTL_IRQ_EN       0x01    /* enable IRQ */
 262 #define ICH6_RBRWP_CLR          0x8000  /* read/write pointer clear */
 263 /* below are so far hardcoded - should read registers in future */
 264 #define ICH6_MAX_CORB_ENTRIES   256
 265 #define ICH6_MAX_RIRB_ENTRIES   256
 266
 267 /* position fix mode */
 268 enum {
 269         POS_FIX_AUTO,
 270         POS_FIX_LPIB,
 271         POS_FIX_POSBUF,
 272 };
 273
 274 /* Defines for ATI HD Audio support in SB450 south bridge */
 275 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
 276 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
 277
 278 /* Defines for Nvidia HDA support */
 279 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
 280 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
 281 #define NVIDIA_HDA_ISTRM_COH          0x4d
 282 #define NVIDIA_HDA_OSTRM_COH          0x4c
 283 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
 284
 285 /* Defines for Intel SCH HDA snoop control */
 286 #define INTEL_SCH_HDA_DEVC      0x78
 287 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
 288
 289
 290 /*
 291  */
 292
 293 struct azx_dev {
 294         struct snd_dma_buffer bdl; /* BDL buffer */
 295         u32 *posbuf;            /* position buffer pointer */
 296
 297         unsigned int bufsize;   /* size of the play buffer in bytes */
 298         unsigned int period_bytes; /* size of the period in bytes */
 299         unsigned int frags;     /* number for period in the play buffer */
 300         unsigned int fifo_size; /* FIFO size */
 301
 302         void __iomem *sd_addr;  /* stream descriptor pointer */
 303
 304         u32 sd_int_sta_mask;    /* stream int status mask */
 305
 306         /* pcm support */
 307         struct snd_pcm_substream *substream;    /* assigned substream,
 308                                                  * set in PCM open
 309                                                  */
 310         unsigned int format_val;        /* format value to be set in the
 311                                          * controller and the codec
 312                                          */
 313         unsigned char stream_tag;       /* assigned stream */
 314         unsigned char index;            /* stream index */
 315
 316         unsigned int opened :1;
 317         unsigned int running :1;
 318         unsigned int irq_pending :1;
 319         unsigned int irq_ignore :1;
 320 };
 321
 322 /* CORB/RIRB */
 323 struct azx_rb {
 324         u32 *buf;               /* CORB/RIRB buffer
 325                                  * Each CORB entry is 4byte, RIRB is 8byte
 326                                  */
 327         dma_addr_t addr;        /* physical address of CORB/RIRB buffer */
 328         /* for RIRB */
 329         unsigned short rp, wp;  /* read/write pointers */
 330         int cmds;               /* number of pending requests */
 331         u32 res;                /* last read value */
 332 };
 333
 334 struct azx {
 335         struct snd_card *card;
 336         struct pci_dev *pci;
 337         int dev_index;
 338
 339         /* chip type specific */
 340         int driver_type;
 341         int playback_streams;
 342         int playback_index_offset;
 343         int capture_streams;
 344         int capture_index_offset;
 345         int num_streams;
 346
 347         /* pci resources */
 348         unsigned long addr;
 349         void __iomem *remap_addr;
 350         int irq;
 351
 352         /* locks */
 353         spinlock_t reg_lock;
 354         struct mutex open_mutex;
 355
 356         /* streams (x num_streams) */
 357         struct azx_dev *azx_dev;
 358
 359         /* PCM */
 360         struct snd_pcm *pcm[AZX_MAX_PCMS];
 361
 362         /* HD codec */
 363         unsigned short codec_mask;
 364         struct hda_bus *bus;
 365
 366         /* CORB/RIRB */
 367         struct azx_rb corb;
 368         struct azx_rb rirb;
 369
 370         /* CORB/RIRB and position buffers */
 371         struct snd_dma_buffer rb;
 372         struct snd_dma_buffer posbuf;
 373
 374         /* flags */
 375         int position_fix;
 376         unsigned int running :1;
 377         unsigned int initialized :1;
 378         unsigned int single_cmd :1;
 379         unsigned int polling_mode :1;
 380         unsigned int msi :1;
 381         unsigned int irq_pending_warned :1;
 382
 383         /* for debugging */
 384         unsigned int last_cmd;  /* last issued command (to sync) */
 385
 386         /* for pending irqs */
 387         struct work_struct irq_pending_work;
 388 };
 389
 390 /* driver types */
 391 enum {
 392         AZX_DRIVER_ICH,
 393         AZX_DRIVER_SCH,
 394         AZX_DRIVER_ATI,
 395         AZX_DRIVER_ATIHDMI,
 396         AZX_DRIVER_VIA,
 397         AZX_DRIVER_SIS,
 398         AZX_DRIVER_ULI,
 399         AZX_DRIVER_NVIDIA,
 400         AZX_DRIVER_TERA,
 401 };
 402
 403 static char *driver_short_names[] __devinitdata = {
 404         [AZX_DRIVER_ICH] = "HDA Intel",
 405         [AZX_DRIVER_SCH] = "HDA Intel MID",
 406         [AZX_DRIVER_ATI] = "HDA ATI SB",
 407         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 408         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
 409         [AZX_DRIVER_SIS] = "HDA SIS966",
 410         [AZX_DRIVER_ULI] = "HDA ULI M5461",
 411         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
 412         [AZX_DRIVER_TERA] = "HDA Teradici",
 413 };
 414
 415 /*
 416  * macros for easy use
 417  */
 418 #define azx_writel(chip,reg,value) \
 419         writel(value, (chip)->remap_addr + ICH6_REG_##reg)
 420 #define azx_readl(chip,reg) \
 421         readl((chip)->remap_addr + ICH6_REG_##reg)
 422 #define azx_writew(chip,reg,value) \
 423         writew(value, (chip)->remap_addr + ICH6_REG_##reg)
 424 #define azx_readw(chip,reg) \
 425         readw((chip)->remap_addr + ICH6_REG_##reg)
 426 #define azx_writeb(chip,reg,value) \
 427         writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
 428 #define azx_readb(chip,reg) \
 429         readb((chip)->remap_addr + ICH6_REG_##reg)
 430
 431 #define azx_sd_writel(dev,reg,value) \
 432         writel(value, (dev)->sd_addr + ICH6_REG_##reg)
 433 #define azx_sd_readl(dev,reg) \
 434         readl((dev)->sd_addr + ICH6_REG_##reg)
 435 #define azx_sd_writew(dev,reg,value) \
 436         writew(value, (dev)->sd_addr + ICH6_REG_##reg)
 437 #define azx_sd_readw(dev,reg) \
 438         readw((dev)->sd_addr + ICH6_REG_##reg)
 439 #define azx_sd_writeb(dev,reg,value) \
 440         writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
 441 #define azx_sd_readb(dev,reg) \
 442         readb((dev)->sd_addr + ICH6_REG_##reg)
 443
 444 /* for pcm support */
 445 #define get_azx_dev(substream) (substream->runtime->private_data)
 446
 447 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
 448
 449 /*
 450  * Interface for HD codec
 451  */
 452
 453 /*
 454  * CORB / RIRB interface
 455  */
 456 static int azx_alloc_cmd_io(struct azx *chip)
 457 {
 458         int err;
 459
 460         /* single page (at least 4096 bytes) must suffice for both ringbuffes */
 461         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 462                                   snd_dma_pci_data(chip->pci),
 463                                   PAGE_SIZE, &chip->rb);
 464         if (err < 0) {
 465                 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
 466                 return err;
 467         }
 468         return 0;
 469 }
 470
 471 static void azx_init_cmd_io(struct azx *chip)
 472 {
 473         /* CORB set up */
 474         chip->corb.addr = chip->rb.addr;
 475         chip->corb.buf = (u32 *)chip->rb.area;
 476         azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
 477         azx_writel(chip, CORBUBASE, upper_32_bits(chip->corb.addr));
 478
 479         /* set the corb size to 256 entries (ULI requires explicitly) */
 480         azx_writeb(chip, CORBSIZE, 0x02);
 481         /* set the corb write pointer to 0 */
 482         azx_writew(chip, CORBWP, 0);
 483         /* reset the corb hw read pointer */
 484         azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
 485         /* enable corb dma */
 486         azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
 487
 488         /* RIRB set up */
 489         chip->rirb.addr = chip->rb.addr + 2048;
 490         chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
 491         azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
 492         azx_writel(chip, RIRBUBASE, upper_32_bits(chip->rirb.addr));
 493
 494         /* set the rirb size to 256 entries (ULI requires explicitly) */
 495         azx_writeb(chip, RIRBSIZE, 0x02);
 496         /* reset the rirb hw write pointer */
 497         azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
 498         /* set N=1, get RIRB response interrupt for new entry */
 499         azx_writew(chip, RINTCNT, 1);
 500         /* enable rirb dma and response irq */
 501         azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
 502         chip->rirb.rp = chip->rirb.cmds = 0;
 503 }
 504
 505 static void azx_free_cmd_io(struct azx *chip)
 506 {
 507         /* disable ringbuffer DMAs */
 508         azx_writeb(chip, RIRBCTL, 0);
 509         azx_writeb(chip, CORBCTL, 0);
 510 }
 511
 512 /* send a command */
 513 static int azx_corb_send_cmd(struct hda_codec *codec, u32 val)
 514 {
 515         struct azx *chip = codec->bus->private_data;
 516         unsigned int wp;
 517
 518         /* add command to corb */
 519         wp = azx_readb(chip, CORBWP);
 520         wp++;
 521         wp %= ICH6_MAX_CORB_ENTRIES;
 522
 523         spin_lock_irq(&chip->reg_lock);
 524         chip->rirb.cmds++;
 525         chip->corb.buf[wp] = cpu_to_le32(val);
 526         azx_writel(chip, CORBWP, wp);
 527         spin_unlock_irq(&chip->reg_lock);
 528
 529         return 0;
 530 }
 531
 532 #define ICH6_RIRB_EX_UNSOL_EV   (1<<4)
 533
 534 /* retrieve RIRB entry - called from interrupt handler */
 535 static void azx_update_rirb(struct azx *chip)
 536 {
 537         unsigned int rp, wp;
 538         u32 res, res_ex;
 539
 540         wp = azx_readb(chip, RIRBWP);
 541         if (wp == chip->rirb.wp)
 542                 return;
 543         chip->rirb.wp = wp;
 544
 545         while (chip->rirb.rp != wp) {
 546                 chip->rirb.rp++;
 547                 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
 548
 549                 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
 550                 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
 551                 res = le32_to_cpu(chip->rirb.buf[rp]);
 552                 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
 553                         snd_hda_queue_unsol_event(chip->bus, res, res_ex);
 554                 else if (chip->rirb.cmds) {
 555                         chip->rirb.res = res;
 556                         smp_wmb();
 557                         chip->rirb.cmds--;
 558                 }
 559         }
 560 }
 561
 562 /* receive a response */
 563 static unsigned int azx_rirb_get_response(struct hda_codec *codec)
 564 {
 565         struct azx *chip = codec->bus->private_data;
 566         unsigned long timeout;
 567
 568  again:
 569         timeout = jiffies + msecs_to_jiffies(1000);
 570         for (;;) {
 571                 if (chip->polling_mode) {
 572                         spin_lock_irq(&chip->reg_lock);
 573                         azx_update_rirb(chip);
 574                         spin_unlock_irq(&chip->reg_lock);
 575                 }
 576                 if (!chip->rirb.cmds) {
 577                         smp_rmb();
 578                         return chip->rirb.res; /* the last value */
 579                 }
 580                 if (time_after(jiffies, timeout))
 581                         break;
 582                 if (codec->bus->needs_damn_long_delay)
 583                         msleep(2); /* temporary workaround */
 584                 else {
 585                         udelay(10);
 586                         cond_resched();
 587                 }
 588         }
 589
 590         if (chip->msi) {
 591                 snd_printk(KERN_WARNING "hda_intel: No response from codec, "
 592                            "disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
 593                 free_irq(chip->irq, chip);
 594                 chip->irq = -1;
 595                 pci_disable_msi(chip->pci);
 596                 chip->msi = 0;
 597                 if (azx_acquire_irq(chip, 1) < 0)
 598                         return -1;
 599                 goto again;
 600         }
 601
 602         if (!chip->polling_mode) {
 603                 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
 604                            "switching to polling mode: last cmd=0x%08x\n",
 605                            chip->last_cmd);
 606                 chip->polling_mode = 1;
 607                 goto again;
 608         }
 609
 610         snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
 611                    "switching to single_cmd mode: last cmd=0x%08x\n",
 612                    chip->last_cmd);
 613         chip->rirb.rp = azx_readb(chip, RIRBWP);
 614         chip->rirb.cmds = 0;
 615         /* switch to single_cmd mode */
 616         chip->single_cmd = 1;
 617         azx_free_cmd_io(chip);
 618         return -1;
 619 }
 620
 621 /*
 622  * Use the single immediate command instead of CORB/RIRB for simplicity
 623  *
 624  * Note: according to Intel, this is not preferred use.  The command was
 625  *       intended for the BIOS only, and may get confused with unsolicited
 626  *       responses.  So, we shouldn't use it for normal operation from the
 627  *       driver.
 628  *       I left the codes, however, for debugging/testing purposes.
 629  */
 630
 631 /* send a command */
 632 static int azx_single_send_cmd(struct hda_codec *codec, u32 val)
 633 {
 634         struct azx *chip = codec->bus->private_data;
 635         int timeout = 50;
 636
 637         while (timeout--) {
 638                 /* check ICB busy bit */
 639                 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
 640                         /* Clear IRV valid bit */
 641                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
 642                                    ICH6_IRS_VALID);
 643                         azx_writel(chip, IC, val);
 644                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
 645                                    ICH6_IRS_BUSY);
 646                         return 0;
 647                 }
 648                 udelay(1);
 649         }
 650         if (printk_ratelimit())
 651                 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
 652                            azx_readw(chip, IRS), val);
 653         return -EIO;
 654 }
 655
 656 /* receive a response */
 657 static unsigned int azx_single_get_response(struct hda_codec *codec)
 658 {
 659         struct azx *chip = codec->bus->private_data;
 660         int timeout = 50;
 661
 662         while (timeout--) {
 663                 /* check IRV busy bit */
 664                 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
 665                         return azx_readl(chip, IR);
 666                 udelay(1);
 667         }
 668         if (printk_ratelimit())
 669                 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
 670                            azx_readw(chip, IRS));
 671         return (unsigned int)-1;
 672 }
 673
 674 /*
 675  * The below are the main callbacks from hda_codec.
 676  *
 677  * They are just the skeleton to call sub-callbacks according to the
 678  * current setting of chip->single_cmd.
 679  */
 680
 681 /* send a command */
 682 static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
 683                         int direct, unsigned int verb,
 684                         unsigned int para)
 685 {
 686         struct azx *chip = codec->bus->private_data;
 687         u32 val;
 688
 689         val = (u32)(codec->addr & 0x0f) << 28;
 690         val |= (u32)direct << 27;
 691         val |= (u32)nid << 20;
 692         val |= verb << 8;
 693         val |= para;
 694         chip->last_cmd = val;
 695
 696         if (chip->single_cmd)
 697                 return azx_single_send_cmd(codec, val);
 698         else
 699                 return azx_corb_send_cmd(codec, val);
 700 }
 701
 702 /* get a response */
 703 static unsigned int azx_get_response(struct hda_codec *codec)
 704 {
 705         struct azx *chip = codec->bus->private_data;
 706         if (chip->single_cmd)
 707                 return azx_single_get_response(codec);
 708         else
 709                 return azx_rirb_get_response(codec);
 710 }
 711
 712 #ifdef CONFIG_SND_HDA_POWER_SAVE
 713 static void azx_power_notify(struct hda_codec *codec);
 714 #endif
 715
 716 /* reset codec link */
 717 static int azx_reset(struct azx *chip)
 718 {
 719         int count;
 720
 721         /* clear STATESTS */
 722         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
 723
 724         /* reset controller */
 725         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
 726
 727         count = 50;
 728         while (azx_readb(chip, GCTL) && --count)
 729                 msleep(1);
 730
 731         /* delay for >= 100us for codec PLL to settle per spec
 732          * Rev 0.9 section 5.5.1
 733          */
 734         msleep(1);
 735
 736         /* Bring controller out of reset */
 737         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
 738
 739         count = 50;
 740         while (!azx_readb(chip, GCTL) && --count)
 741                 msleep(1);
 742
 743         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
 744         msleep(1);
 745
 746         /* check to see if controller is ready */
 747         if (!azx_readb(chip, GCTL)) {
 748                 snd_printd("azx_reset: controller not ready!\n");
 749                 return -EBUSY;
 750         }
 751
 752         /* Accept unsolicited responses */
 753         azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
 754
 755         /* detect codecs */
 756         if (!chip->codec_mask) {
 757                 chip->codec_mask = azx_readw(chip, STATESTS);
 758                 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
 759         }
 760
 761         return 0;
 762 }
 763
 764
 765 /*
 766  * Lowlevel interface
 767  */
 768
 769 /* enable interrupts */
 770 static void azx_int_enable(struct azx *chip)
 771 {
 772         /* enable controller CIE and GIE */
 773         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
 774                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
 775 }
 776
 777 /* disable interrupts */
 778 static void azx_int_disable(struct azx *chip)
 779 {
 780         int i;
 781
 782         /* disable interrupts in stream descriptor */
 783         for (i = 0; i < chip->num_streams; i++) {
 784                 struct azx_dev *azx_dev = &chip->azx_dev[i];
 785                 azx_sd_writeb(azx_dev, SD_CTL,
 786                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
 787         }
 788
 789         /* disable SIE for all streams */
 790         azx_writeb(chip, INTCTL, 0);
 791
 792         /* disable controller CIE and GIE */
 793         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
 794                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
 795 }
 796
 797 /* clear interrupts */
 798 static void azx_int_clear(struct azx *chip)
 799 {
 800         int i;
 801
 802         /* clear stream status */
 803         for (i = 0; i < chip->num_streams; i++) {
 804                 struct azx_dev *azx_dev = &chip->azx_dev[i];
 805                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 806         }
 807
 808         /* clear STATESTS */
 809         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
 810
 811         /* clear rirb status */
 812         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 813
 814         /* clear int status */
 815         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
 816 }
 817
 818 /* start a stream */
 819 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
 820 {
 821         /* enable SIE */
 822         azx_writeb(chip, INTCTL,
 823                    azx_readb(chip, INTCTL) | (1 << azx_dev->index));
 824         /* set DMA start and interrupt mask */
 825         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
 826                       SD_CTL_DMA_START | SD_INT_MASK);
 827 }
 828
 829 /* stop a stream */
 830 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
 831 {
 832         /* stop DMA */
 833         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
 834                       ~(SD_CTL_DMA_START | SD_INT_MASK));
 835         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
 836         /* disable SIE */
 837         azx_writeb(chip, INTCTL,
 838                    azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
 839 }
 840
 841
 842 /*
 843  * reset and start the controller registers
 844  */
 845 static void azx_init_chip(struct azx *chip)
 846 {
 847         if (chip->initialized)
 848                 return;
 849
 850         /* reset controller */
 851         azx_reset(chip);
 852
 853         /* initialize interrupts */
 854         azx_int_clear(chip);
 855         azx_int_enable(chip);
 856
 857         /* initialize the codec command I/O */
 858         if (!chip->single_cmd)
 859                 azx_init_cmd_io(chip);
 860
 861         /* program the position buffer */
 862         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
 863         azx_writel(chip, DPUBASE, upper_32_bits(chip->posbuf.addr));
 864
 865         chip->initialized = 1;
 866 }
 867
 868 /*
 869  * initialize the PCI registers
 870  */
 871 /* update bits in a PCI register byte */
 872 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
 873                             unsigned char mask, unsigned char val)
 874 {
 875         unsigned char data;
 876
 877         pci_read_config_byte(pci, reg, &data);
 878         data &= ~mask;
 879         data |= (val & mask);
 880         pci_write_config_byte(pci, reg, data);
 881 }
 882
 883 static void azx_init_pci(struct azx *chip)
 884 {
 885         unsigned short snoop;
 886
 887         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
 888          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
 889          * Ensuring these bits are 0 clears playback static on some HD Audio
 890          * codecs
 891          */
 892         update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
 893
 894         switch (chip->driver_type) {
 895         case AZX_DRIVER_ATI:
 896                 /* For ATI SB450 azalia HD audio, we need to enable snoop */
 897                 update_pci_byte(chip->pci,
 898                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
 899                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
 900                 break;
 901         case AZX_DRIVER_NVIDIA:
 902                 /* For NVIDIA HDA, enable snoop */
 903                 update_pci_byte(chip->pci,
 904                                 NVIDIA_HDA_TRANSREG_ADDR,
 905                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
 906                 update_pci_byte(chip->pci,
 907                                 NVIDIA_HDA_ISTRM_COH,
 908                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 909                 update_pci_byte(chip->pci,
 910                                 NVIDIA_HDA_OSTRM_COH,
 911                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 912                 break;
 913         case AZX_DRIVER_SCH:
 914                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
 915                 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
 916                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, \
 917                                 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
 918                         pci_read_config_word(chip->pci,
 919                                 INTEL_SCH_HDA_DEVC, &snoop);
 920                         snd_printdd("HDA snoop disabled, enabling ... %s\n",\
 921                                 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) \
 922                                 ? "Failed" : "OK");
 923                 }
 924                 break;
 925
 926         }
 927 }
 928
 929
 930 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
 931
 932 /*
 933  * interrupt handler
 934  */
 935 static irqreturn_t azx_interrupt(int irq, void *dev_id)
 936 {
 937         struct azx *chip = dev_id;
 938         struct azx_dev *azx_dev;
 939         u32 status;
 940         int i;
 941
 942         spin_lock(&chip->reg_lock);
 943
 944         status = azx_readl(chip, INTSTS);
 945         if (status == 0) {
 946                 spin_unlock(&chip->reg_lock);
 947                 return IRQ_NONE;
 948         }
 949
 950         for (i = 0; i < chip->num_streams; i++) {
 951                 azx_dev = &chip->azx_dev[i];
 952                 if (status & azx_dev->sd_int_sta_mask) {
 953                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 954                         if (!azx_dev->substream || !azx_dev->running)
 955                                 continue;
 956                         /* ignore the first dummy IRQ (due to pos_adj) */
 957                         if (azx_dev->irq_ignore) {
 958                                 azx_dev->irq_ignore = 0;
 959                                 continue;
 960                         }
 961                         /* check whether this IRQ is really acceptable */
 962                         if (azx_position_ok(chip, azx_dev)) {
 963                                 azx_dev->irq_pending = 0;
 964                                 spin_unlock(&chip->reg_lock);
 965                                 snd_pcm_period_elapsed(azx_dev->substream);
 966                                 spin_lock(&chip->reg_lock);
 967                         } else {
 968                                 /* bogus IRQ, process it later */
 969                                 azx_dev->irq_pending = 1;
 970                                 schedule_work(&chip->irq_pending_work);
 971                         }
 972                 }
 973         }
 974
 975         /* clear rirb int */
 976         status = azx_readb(chip, RIRBSTS);
 977         if (status & RIRB_INT_MASK) {
 978                 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
 979                         azx_update_rirb(chip);
 980                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 981         }
 982
 983 #if 0
 984         /* clear state status int */
 985         if (azx_readb(chip, STATESTS) & 0x04)
 986                 azx_writeb(chip, STATESTS, 0x04);
 987 #endif
 988         spin_unlock(&chip->reg_lock);
 989
 990         return IRQ_HANDLED;
 991 }
 992
 993
 994 /*
 995  * set up a BDL entry
 996  */
 997 static int setup_bdle(struct snd_pcm_substream *substream,
 998                       struct azx_dev *azx_dev, u32 **bdlp,
 999                       int ofs, int size, int with_ioc)
1000 {
1001         struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
1002         u32 *bdl = *bdlp;
1003
1004         while (size > 0) {
1005                 dma_addr_t addr;
1006                 int chunk;
1007
1008                 if (azx_dev->frags >= AZX_MAX_BDL_ENTRIES)
1009                         return -EINVAL;
1010
1011                 addr = snd_pcm_sgbuf_get_addr(sgbuf, ofs);
1012                 /* program the address field of the BDL entry */
1013                 bdl[0] = cpu_to_le32((u32)addr);
1014                 bdl[1] = cpu_to_le32(upper_32_bits(addr));
1015                 /* program the size field of the BDL entry */
1016                 chunk = PAGE_SIZE - (ofs % PAGE_SIZE);
1017                 if (size < chunk)
1018                         chunk = size;
1019                 bdl[2] = cpu_to_le32(chunk);
1020                 /* program the IOC to enable interrupt
1021                  * only when the whole fragment is processed
1022                  */
1023                 size -= chunk;
1024                 bdl[3] = (size || !with_ioc) ? 0 : cpu_to_le32(0x01);
1025                 bdl += 4;
1026                 azx_dev->frags++;
1027                 ofs += chunk;
1028         }
1029         *bdlp = bdl;
1030         return ofs;
1031 }
1032
1033 /*
1034  * set up BDL entries
1035  */
1036 static int azx_setup_periods(struct azx *chip,
1037                              struct snd_pcm_substream *substream,
1038                              struct azx_dev *azx_dev)
1039 {
1040         u32 *bdl;
1041         int i, ofs, periods, period_bytes;
1042         int pos_adj;
1043
1044         /* reset BDL address */
1045         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1046         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1047
1048         period_bytes = snd_pcm_lib_period_bytes(substream);
1049         azx_dev->period_bytes = period_bytes;
1050         periods = azx_dev->bufsize / period_bytes;
1051
1052         /* program the initial BDL entries */
1053         bdl = (u32 *)azx_dev->bdl.area;
1054         ofs = 0;
1055         azx_dev->frags = 0;
1056         azx_dev->irq_ignore = 0;
1057         pos_adj = bdl_pos_adj[chip->dev_index];
1058         if (pos_adj > 0) {
1059                 struct snd_pcm_runtime *runtime = substream->runtime;
1060                 int pos_align = pos_adj;
1061                 pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
1062                 if (!pos_adj)
1063                         pos_adj = pos_align;
1064                 else
1065                         pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
1066                                 pos_align;
1067                 pos_adj = frames_to_bytes(runtime, pos_adj);
1068                 if (pos_adj >= period_bytes) {
1069                         snd_printk(KERN_WARNING "Too big adjustment %d\n",
1070                                    bdl_pos_adj[chip->dev_index]);
1071                         pos_adj = 0;
1072                 } else {
1073                         ofs = setup_bdle(substream, azx_dev,
1074                                          &bdl, ofs, pos_adj, 1);
1075                         if (ofs < 0)
1076                                 goto error;
1077                         azx_dev->irq_ignore = 1;
1078                 }
1079         } else
1080                 pos_adj = 0;
1081         for (i = 0; i < periods; i++) {
1082                 if (i == periods - 1 && pos_adj)
1083                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1084                                          period_bytes - pos_adj, 0);
1085                 else
1086                         ofs = setup_bdle(substream, azx_dev, &bdl, ofs,
1087                                          period_bytes, 1);
1088                 if (ofs < 0)
1089                         goto error;
1090         }
1091         return 0;
1092
1093  error:
1094         snd_printk(KERN_ERR "Too many BDL entries: buffer=%d, period=%d\n",
1095                    azx_dev->bufsize, period_bytes);
1096         /* reset */
1097         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1098         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1099         return -EINVAL;
1100 }
1101
1102 /*
1103  * set up the SD for streaming
1104  */
1105 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1106 {
1107         unsigned char val;
1108         int timeout;
1109
1110         /* make sure the run bit is zero for SD */
1111         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1112                       ~SD_CTL_DMA_START);
1113         /* reset stream */
1114         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1115                       SD_CTL_STREAM_RESET);
1116         udelay(3);
1117         timeout = 300;
1118         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1119                --timeout)
1120                 ;
1121         val &= ~SD_CTL_STREAM_RESET;
1122         azx_sd_writeb(azx_dev, SD_CTL, val);
1123         udelay(3);
1124
1125         timeout = 300;
1126         /* waiting for hardware to report that the stream is out of reset */
1127         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1128                --timeout)
1129                 ;
1130
1131         /* program the stream_tag */
1132         azx_sd_writel(azx_dev, SD_CTL,
1133                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1134                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1135
1136         /* program the length of samples in cyclic buffer */
1137         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1138
1139         /* program the stream format */
1140         /* this value needs to be the same as the one programmed */
1141         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1142
1143         /* program the stream LVI (last valid index) of the BDL */
1144         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1145
1146         /* program the BDL address */
1147         /* lower BDL address */
1148         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1149         /* upper BDL address */
1150         azx_sd_writel(azx_dev, SD_BDLPU, upper_32_bits(azx_dev->bdl.addr));
1151
1152         /* enable the position buffer */
1153         if (chip->position_fix == POS_FIX_POSBUF ||
1154             chip->position_fix == POS_FIX_AUTO) {
1155                 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1156                         azx_writel(chip, DPLBASE,
1157                                 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1158         }
1159
1160         /* set the interrupt enable bits in the descriptor control register */
1161         azx_sd_writel(azx_dev, SD_CTL,
1162                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1163
1164         return 0;
1165 }
1166
1167
1168 /*
1169  * Codec initialization
1170  */
1171
1172 static unsigned int azx_max_codecs[] __devinitdata = {
1173         [AZX_DRIVER_ICH] = 4,           /* Some ICH9 boards use SD3 */
1174         [AZX_DRIVER_SCH] = 3,
1175         [AZX_DRIVER_ATI] = 4,
1176         [AZX_DRIVER_ATIHDMI] = 4,
1177         [AZX_DRIVER_VIA] = 3,           /* FIXME: correct? */
1178         [AZX_DRIVER_SIS] = 3,           /* FIXME: correct? */
1179         [AZX_DRIVER_ULI] = 3,           /* FIXME: correct? */
1180         [AZX_DRIVER_NVIDIA] = 3,        /* FIXME: correct? */
1181         [AZX_DRIVER_TERA] = 1,
1182 };
1183
1184 static int __devinit azx_codec_create(struct azx *chip, const char *model,
1185                                       unsigned int codec_probe_mask)
1186 {
1187         struct hda_bus_template bus_temp;
1188         int c, codecs, audio_codecs, err;
1189
1190         memset(&bus_temp, 0, sizeof(bus_temp));
1191         bus_temp.private_data = chip;
1192         bus_temp.modelname = model;
1193         bus_temp.pci = chip->pci;
1194         bus_temp.ops.command = azx_send_cmd;
1195         bus_temp.ops.get_response = azx_get_response;
1196 #ifdef CONFIG_SND_HDA_POWER_SAVE
1197         bus_temp.ops.pm_notify = azx_power_notify;
1198 #endif
1199
1200         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1201         if (err < 0)
1202                 return err;
1203
1204         codecs = audio_codecs = 0;
1205         for (c = 0; c < AZX_MAX_CODECS; c++) {
1206                 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1207                         struct hda_codec *codec;
1208                         err = snd_hda_codec_new(chip->bus, c, &codec);
1209                         if (err < 0)
1210                                 continue;
1211                         codecs++;
1212                         if (codec->afg)
1213                                 audio_codecs++;
1214                 }
1215         }
1216         if (!audio_codecs) {
1217                 /* probe additional slots if no codec is found */
1218                 for (; c < azx_max_codecs[chip->driver_type]; c++) {
1219                         if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1220                                 err = snd_hda_codec_new(chip->bus, c, NULL);
1221                                 if (err < 0)
1222                                         continue;
1223                                 codecs++;
1224                         }
1225                 }
1226         }
1227         if (!codecs) {
1228                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1229                 return -ENXIO;
1230         }
1231
1232         return 0;
1233 }
1234
1235
1236 /*
1237  * PCM support
1238  */
1239
1240 /* assign a stream for the PCM */
1241 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1242 {
1243         int dev, i, nums;
1244         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1245                 dev = chip->playback_index_offset;
1246                 nums = chip->playback_streams;
1247         } else {
1248                 dev = chip->capture_index_offset;
1249                 nums = chip->capture_streams;
1250         }
1251         for (i = 0; i < nums; i++, dev++)
1252                 if (!chip->azx_dev[dev].opened) {
1253                         chip->azx_dev[dev].opened = 1;
1254                         return &chip->azx_dev[dev];
1255                 }
1256         return NULL;
1257 }
1258
1259 /* release the assigned stream */
1260 static inline void azx_release_device(struct azx_dev *azx_dev)
1261 {
1262         azx_dev->opened = 0;
1263 }
1264
1265 static struct snd_pcm_hardware azx_pcm_hw = {
1266         .info =                 (SNDRV_PCM_INFO_MMAP |
1267                                  SNDRV_PCM_INFO_INTERLEAVED |
1268                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1269                                  SNDRV_PCM_INFO_MMAP_VALID |
1270                                  /* No full-resume yet implemented */
1271                                  /* SNDRV_PCM_INFO_RESUME |*/
1272                                  SNDRV_PCM_INFO_PAUSE |
1273                                  SNDRV_PCM_INFO_SYNC_START),
1274         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1275         .rates =                SNDRV_PCM_RATE_48000,
1276         .rate_min =             48000,
1277         .rate_max =             48000,
1278         .channels_min =         2,
1279         .channels_max =         2,
1280         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1281         .period_bytes_min =     128,
1282         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1283         .periods_min =          2,
1284         .periods_max =          AZX_MAX_FRAG,
1285         .fifo_size =            0,
1286 };
1287
1288 struct azx_pcm {
1289         struct azx *chip;
1290         struct hda_codec *codec;
1291         struct hda_pcm_stream *hinfo[2];
1292 };
1293
1294 static int azx_pcm_open(struct snd_pcm_substream *substream)
1295 {
1296         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1297         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1298         struct azx *chip = apcm->chip;
1299         struct azx_dev *azx_dev;
1300         struct snd_pcm_runtime *runtime = substream->runtime;
1301         unsigned long flags;
1302         int err;
1303
1304         mutex_lock(&chip->open_mutex);
1305         azx_dev = azx_assign_device(chip, substream->stream);
1306         if (azx_dev == NULL) {
1307                 mutex_unlock(&chip->open_mutex);
1308                 return -EBUSY;
1309         }
1310         runtime->hw = azx_pcm_hw;
1311         runtime->hw.channels_min = hinfo->channels_min;
1312         runtime->hw.channels_max = hinfo->channels_max;
1313         runtime->hw.formats = hinfo->formats;
1314         runtime->hw.rates = hinfo->rates;
1315         snd_pcm_limit_hw_rates(runtime);
1316         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1317         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1318                                    128);
1319         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1320                                    128);
1321         snd_hda_power_up(apcm->codec);
1322         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1323         if (err < 0) {
1324                 azx_release_device(azx_dev);
1325                 snd_hda_power_down(apcm->codec);
1326                 mutex_unlock(&chip->open_mutex);
1327                 return err;
1328         }
1329         spin_lock_irqsave(&chip->reg_lock, flags);
1330         azx_dev->substream = substream;
1331         azx_dev->running = 0;
1332         spin_unlock_irqrestore(&chip->reg_lock, flags);
1333
1334         runtime->private_data = azx_dev;
1335         snd_pcm_set_sync(substream);
1336         mutex_unlock(&chip->open_mutex);
1337         return 0;
1338 }
1339
1340 static int azx_pcm_close(struct snd_pcm_substream *substream)
1341 {
1342         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1343         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1344         struct azx *chip = apcm->chip;
1345         struct azx_dev *azx_dev = get_azx_dev(substream);
1346         unsigned long flags;
1347
1348         mutex_lock(&chip->open_mutex);
1349         spin_lock_irqsave(&chip->reg_lock, flags);
1350         azx_dev->substream = NULL;
1351         azx_dev->running = 0;
1352         spin_unlock_irqrestore(&chip->reg_lock, flags);
1353         azx_release_device(azx_dev);
1354         hinfo->ops.close(hinfo, apcm->codec, substream);
1355         snd_hda_power_down(apcm->codec);
1356         mutex_unlock(&chip->open_mutex);
1357         return 0;
1358 }
1359
1360 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1361                              struct snd_pcm_hw_params *hw_params)
1362 {
1363         return snd_pcm_lib_malloc_pages(substream,
1364                                         params_buffer_bytes(hw_params));
1365 }
1366
1367 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1368 {
1369         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1370         struct azx_dev *azx_dev = get_azx_dev(substream);
1371         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1372
1373         /* reset BDL address */
1374         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1375         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1376         azx_sd_writel(azx_dev, SD_CTL, 0);
1377
1378         hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1379
1380         return snd_pcm_lib_free_pages(substream);
1381 }
1382
1383 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1384 {
1385         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1386         struct azx *chip = apcm->chip;
1387         struct azx_dev *azx_dev = get_azx_dev(substream);
1388         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1389         struct snd_pcm_runtime *runtime = substream->runtime;
1390
1391         azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1392         azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1393                                                          runtime->channels,
1394                                                          runtime->format,
1395                                                          hinfo->maxbps);
1396         if (!azx_dev->format_val) {
1397                 snd_printk(KERN_ERR SFX
1398                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1399                            runtime->rate, runtime->channels, runtime->format);
1400                 return -EINVAL;
1401         }
1402
1403         snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1404                     azx_dev->bufsize, azx_dev->format_val);
1405         if (azx_setup_periods(chip, substream, azx_dev) < 0)
1406                 return -EINVAL;
1407         azx_setup_controller(chip, azx_dev);
1408         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1409                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1410         else
1411                 azx_dev->fifo_size = 0;
1412
1413         return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1414                                   azx_dev->format_val, substream);
1415 }
1416
1417 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1418 {
1419         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1420         struct azx *chip = apcm->chip;
1421         struct azx_dev *azx_dev;
1422         struct snd_pcm_substream *s;
1423         int start, nsync = 0, sbits = 0;
1424         int nwait, timeout;
1425
1426         switch (cmd) {
1427         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1428         case SNDRV_PCM_TRIGGER_RESUME:
1429         case SNDRV_PCM_TRIGGER_START:
1430                 start = 1;
1431                 break;
1432         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1433         case SNDRV_PCM_TRIGGER_SUSPEND:
1434         case SNDRV_PCM_TRIGGER_STOP:
1435                 start = 0;
1436                 break;
1437         default:
1438                 return -EINVAL;
1439         }
1440
1441         snd_pcm_group_for_each_entry(s, substream) {
1442                 if (s->pcm->card != substream->pcm->card)
1443                         continue;
1444                 azx_dev = get_azx_dev(s);
1445                 sbits |= 1 << azx_dev->index;
1446                 nsync++;
1447                 snd_pcm_trigger_done(s, substream);
1448         }
1449
1450         spin_lock(&chip->reg_lock);
1451         if (nsync > 1) {
1452                 /* first, set SYNC bits of corresponding streams */
1453                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1454         }
1455         snd_pcm_group_for_each_entry(s, substream) {
1456                 if (s->pcm->card != substream->pcm->card)
1457                         continue;
1458                 azx_dev = get_azx_dev(s);
1459                 if (start)
1460                         azx_stream_start(chip, azx_dev);
1461                 else
1462                         azx_stream_stop(chip, azx_dev);
1463                 azx_dev->running = start;
1464         }
1465         spin_unlock(&chip->reg_lock);
1466         if (start) {
1467                 if (nsync == 1)
1468                         return 0;
1469                 /* wait until all FIFOs get ready */
1470                 for (timeout = 5000; timeout; timeout--) {
1471                         nwait = 0;
1472                         snd_pcm_group_for_each_entry(s, substream) {
1473                                 if (s->pcm->card != substream->pcm->card)
1474                                         continue;
1475                                 azx_dev = get_azx_dev(s);
1476                                 if (!(azx_sd_readb(azx_dev, SD_STS) &
1477                                       SD_STS_FIFO_READY))
1478                                         nwait++;
1479                         }
1480                         if (!nwait)
1481                                 break;
1482                         cpu_relax();
1483                 }
1484         } else {
1485                 /* wait until all RUN bits are cleared */
1486                 for (timeout = 5000; timeout; timeout--) {
1487                         nwait = 0;
1488                         snd_pcm_group_for_each_entry(s, substream) {
1489                                 if (s->pcm->card != substream->pcm->card)
1490                                         continue;
1491                                 azx_dev = get_azx_dev(s);
1492                                 if (azx_sd_readb(azx_dev, SD_CTL) &
1493                                     SD_CTL_DMA_START)
1494                                         nwait++;
1495                         }
1496                         if (!nwait)
1497                                 break;
1498                         cpu_relax();
1499                 }
1500         }
1501         if (nsync > 1) {
1502                 spin_lock(&chip->reg_lock);
1503                 /* reset SYNC bits */
1504                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1505                 spin_unlock(&chip->reg_lock);
1506         }
1507         return 0;
1508 }
1509
1510 static unsigned int azx_get_position(struct azx *chip,
1511                                      struct azx_dev *azx_dev)
1512 {
1513         unsigned int pos;
1514
1515         if (chip->position_fix == POS_FIX_POSBUF ||
1516             chip->position_fix == POS_FIX_AUTO) {
1517                 /* use the position buffer */
1518                 pos = le32_to_cpu(*azx_dev->posbuf);
1519         } else {
1520                 /* read LPIB */
1521                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1522         }
1523         if (pos >= azx_dev->bufsize)
1524                 pos = 0;
1525         return pos;
1526 }
1527
1528 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1529 {
1530         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1531         struct azx *chip = apcm->chip;
1532         struct azx_dev *azx_dev = get_azx_dev(substream);
1533         return bytes_to_frames(substream->runtime,
1534                                azx_get_position(chip, azx_dev));
1535 }
1536
1537 /*
1538  * Check whether the current DMA position is acceptable for updating
1539  * periods.  Returns non-zero if it's OK.
1540  *
1541  * Many HD-audio controllers appear pretty inaccurate about
1542  * the update-IRQ timing.  The IRQ is issued before actually the
1543  * data is processed.  So, we need to process it afterwords in a
1544  * workqueue.
1545  */
1546 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
1547 {
1548         unsigned int pos;
1549
1550         pos = azx_get_position(chip, azx_dev);
1551         if (chip->position_fix == POS_FIX_AUTO) {
1552                 if (!pos) {
1553                         printk(KERN_WARNING
1554                                "hda-intel: Invalid position buffer, "
1555                                "using LPIB read method instead.\n");
1556                         chip->position_fix = POS_FIX_LPIB;
1557                         pos = azx_get_position(chip, azx_dev);
1558                 } else
1559                         chip->position_fix = POS_FIX_POSBUF;
1560         }
1561
1562         if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
1563                 return 0; /* NG - it's below the period boundary */
1564         return 1; /* OK, it's fine */
1565 }
1566
1567 /*
1568  * The work for pending PCM period updates.
1569  */
1570 static void azx_irq_pending_work(struct work_struct *work)
1571 {
1572         struct azx *chip = container_of(work, struct azx, irq_pending_work);
1573         int i, pending;
1574
1575         if (!chip->irq_pending_warned) {
1576                 printk(KERN_WARNING
1577                        "hda-intel: IRQ timing workaround is activated "
1578                        "for card #%d. Suggest a bigger bdl_pos_adj.\n",
1579                        chip->card->number);
1580                 chip->irq_pending_warned = 1;
1581         }
1582
1583         for (;;) {
1584                 pending = 0;
1585                 spin_lock_irq(&chip->reg_lock);
1586                 for (i = 0; i < chip->num_streams; i++) {
1587                         struct azx_dev *azx_dev = &chip->azx_dev[i];
1588                         if (!azx_dev->irq_pending ||
1589                             !azx_dev->substream ||
1590                             !azx_dev->running)
1591                                 continue;
1592                         if (azx_position_ok(chip, azx_dev)) {
1593                                 azx_dev->irq_pending = 0;
1594                                 spin_unlock(&chip->reg_lock);
1595                                 snd_pcm_period_elapsed(azx_dev->substream);
1596                                 spin_lock(&chip->reg_lock);
1597                         } else
1598                                 pending++;
1599                 }
1600                 spin_unlock_irq(&chip->reg_lock);
1601                 if (!pending)
1602                         return;
1603                 cond_resched();
1604         }
1605 }
1606
1607 /* clear irq_pending flags and assure no on-going workq */
1608 static void azx_clear_irq_pending(struct azx *chip)
1609 {
1610         int i;
1611
1612         spin_lock_irq(&chip->reg_lock);
1613         for (i = 0; i < chip->num_streams; i++)
1614                 chip->azx_dev[i].irq_pending = 0;
1615         spin_unlock_irq(&chip->reg_lock);
1616         flush_scheduled_work();
1617 }
1618
1619 static struct snd_pcm_ops azx_pcm_ops = {
1620         .open = azx_pcm_open,
1621         .close = azx_pcm_close,
1622         .ioctl = snd_pcm_lib_ioctl,
1623         .hw_params = azx_pcm_hw_params,
1624         .hw_free = azx_pcm_hw_free,
1625         .prepare = azx_pcm_prepare,
1626         .trigger = azx_pcm_trigger,
1627         .pointer = azx_pcm_pointer,
1628         .page = snd_pcm_sgbuf_ops_page,
1629 };
1630
1631 static void azx_pcm_free(struct snd_pcm *pcm)
1632 {
1633         kfree(pcm->private_data);
1634 }
1635
1636 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1637                                       struct hda_pcm *cpcm)
1638 {
1639         int err;
1640         struct snd_pcm *pcm;
1641         struct azx_pcm *apcm;
1642
1643         /* if no substreams are defined for both playback and capture,
1644          * it's just a placeholder.  ignore it.
1645          */
1646         if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
1647                 return 0;
1648
1649         snd_assert(cpcm->name, return -EINVAL);
1650
1651         err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
1652                           cpcm->stream[0].substreams,
1653                           cpcm->stream[1].substreams,
1654                           &pcm);
1655         if (err < 0)
1656                 return err;
1657         strcpy(pcm->name, cpcm->name);
1658         apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1659         if (apcm == NULL)
1660                 return -ENOMEM;
1661         apcm->chip = chip;
1662         apcm->codec = codec;
1663         apcm->hinfo[0] = &cpcm->stream[0];
1664         apcm->hinfo[1] = &cpcm->stream[1];
1665         pcm->private_data = apcm;
1666         pcm->private_free = azx_pcm_free;
1667         if (cpcm->stream[0].substreams)
1668                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1669         if (cpcm->stream[1].substreams)
1670                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1671         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1672                                               snd_dma_pci_data(chip->pci),
1673                                               1024 * 64, 1024 * 1024);
1674         chip->pcm[cpcm->device] = pcm;
1675         return 0;
1676 }
1677
1678 static int __devinit azx_pcm_create(struct azx *chip)
1679 {
1680         static const char *dev_name[HDA_PCM_NTYPES] = {
1681                 "Audio", "SPDIF", "HDMI", "Modem"
1682         };
1683         /* starting device index for each PCM type */
1684         static int dev_idx[HDA_PCM_NTYPES] = {
1685                 [HDA_PCM_TYPE_AUDIO] = 0,
1686                 [HDA_PCM_TYPE_SPDIF] = 1,
1687                 [HDA_PCM_TYPE_HDMI] = 3,
1688                 [HDA_PCM_TYPE_MODEM] = 6
1689         };
1690         /* normal audio device indices; not linear to keep compatibility */
1691         static int audio_idx[4] = { 0, 2, 4, 5 };
1692         struct hda_codec *codec;
1693         int c, err;
1694         int num_devs[HDA_PCM_NTYPES];
1695
1696         err = snd_hda_build_pcms(chip->bus);
1697         if (err < 0)
1698                 return err;
1699
1700         /* create audio PCMs */
1701         memset(num_devs, 0, sizeof(num_devs));
1702         list_for_each_entry(codec, &chip->bus->codec_list, list) {
1703                 for (c = 0; c < codec->num_pcms; c++) {
1704                         struct hda_pcm *cpcm = &codec->pcm_info[c];
1705                         int type = cpcm->pcm_type;
1706                         switch (type) {
1707                         case HDA_PCM_TYPE_AUDIO:
1708                                 if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
1709                                         snd_printk(KERN_WARNING
1710                                                    "Too many audio devices\n");
1711                                         continue;
1712                                 }
1713                                 cpcm->device = audio_idx[num_devs[type]];
1714                                 break;
1715                         case HDA_PCM_TYPE_SPDIF:
1716                         case HDA_PCM_TYPE_HDMI:
1717                         case HDA_PCM_TYPE_MODEM:
1718                                 if (num_devs[type]) {
1719                                         snd_printk(KERN_WARNING
1720                                                    "%s already defined\n",
1721                                                    dev_name[type]);
1722                                         continue;
1723                                 }
1724                                 cpcm->device = dev_idx[type];
1725                                 break;
1726                         default:
1727                                 snd_printk(KERN_WARNING
1728                                            "Invalid PCM type %d\n", type);
1729                                 continue;
1730                         }
1731                         num_devs[type]++;
1732                         err = create_codec_pcm(chip, codec, cpcm);
1733                         if (err < 0)
1734                                 return err;
1735                 }
1736         }
1737         return 0;
1738 }
1739
1740 /*
1741  * mixer creation - all stuff is implemented in hda module
1742  */
1743 static int __devinit azx_mixer_create(struct azx *chip)
1744 {
1745         return snd_hda_build_controls(chip->bus);
1746 }
1747
1748
1749 /*
1750  * initialize SD streams
1751  */
1752 static int __devinit azx_init_stream(struct azx *chip)
1753 {
1754         int i;
1755
1756         /* initialize each stream (aka device)
1757          * assign the starting bdl address to each stream (device)
1758          * and initialize
1759          */
1760         for (i = 0; i < chip->num_streams; i++) {
1761                 struct azx_dev *azx_dev = &chip->azx_dev[i];
1762                 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1763                 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1764                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1765                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1766                 azx_dev->sd_int_sta_mask = 1 << i;
1767                 /* stream tag: must be non-zero and unique */
1768                 azx_dev->index = i;
1769                 azx_dev->stream_tag = i + 1;
1770         }
1771
1772         return 0;
1773 }
1774
1775 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
1776 {
1777         if (request_irq(chip->pci->irq, azx_interrupt,
1778                         chip->msi ? 0 : IRQF_SHARED,
1779                         "HDA Intel", chip)) {
1780                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1781                        "disabling device\n", chip->pci->irq);
1782                 if (do_disconnect)
1783                         snd_card_disconnect(chip->card);
1784                 return -1;
1785         }
1786         chip->irq = chip->pci->irq;
1787         pci_intx(chip->pci, !chip->msi);
1788         return 0;
1789 }
1790
1791
1792 static void azx_stop_chip(struct azx *chip)
1793 {
1794         if (!chip->initialized)
1795                 return;
1796
1797         /* disable interrupts */
1798         azx_int_disable(chip);
1799         azx_int_clear(chip);
1800
1801         /* disable CORB/RIRB */
1802         azx_free_cmd_io(chip);
1803
1804         /* disable position buffer */
1805         azx_writel(chip, DPLBASE, 0);
1806         azx_writel(chip, DPUBASE, 0);
1807
1808         chip->initialized = 0;
1809 }
1810
1811 #ifdef CONFIG_SND_HDA_POWER_SAVE
1812 /* power-up/down the controller */
1813 static void azx_power_notify(struct hda_codec *codec)
1814 {
1815         struct azx *chip = codec->bus->private_data;
1816         struct hda_codec *c;
1817         int power_on = 0;
1818
1819         list_for_each_entry(c, &codec->bus->codec_list, list) {
1820                 if (c->power_on) {
1821                         power_on = 1;
1822                         break;
1823                 }
1824         }
1825         if (power_on)
1826                 azx_init_chip(chip);
1827         else if (chip->running && power_save_controller)
1828                 azx_stop_chip(chip);
1829 }
1830 #endif /* CONFIG_SND_HDA_POWER_SAVE */
1831
1832 #ifdef CONFIG_PM
1833 /*
1834  * power management
1835  */
1836 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1837 {
1838         struct snd_card *card = pci_get_drvdata(pci);
1839         struct azx *chip = card->private_data;
1840         int i;
1841
1842         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1843         azx_clear_irq_pending(chip);
1844         for (i = 0; i < AZX_MAX_PCMS; i++)
1845                 snd_pcm_suspend_all(chip->pcm[i]);
1846         if (chip->initialized)
1847                 snd_hda_suspend(chip->bus, state);
1848         azx_stop_chip(chip);
1849         if (chip->irq >= 0) {
1850                 free_irq(chip->irq, chip);
1851                 chip->irq = -1;
1852         }
1853         if (chip->msi)
1854                 pci_disable_msi(chip->pci);
1855         pci_disable_device(pci);
1856         pci_save_state(pci);
1857         pci_set_power_state(pci, pci_choose_state(pci, state));
1858         return 0;
1859 }
1860
1861 static int azx_resume(struct pci_dev *pci)
1862 {
1863         struct snd_card *card = pci_get_drvdata(pci);
1864         struct azx *chip = card->private_data;
1865
1866         pci_set_power_state(pci, PCI_D0);
1867         pci_restore_state(pci);
1868         if (pci_enable_device(pci) < 0) {
1869                 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1870                        "disabling device\n");
1871                 snd_card_disconnect(card);
1872                 return -EIO;
1873         }
1874         pci_set_master(pci);
1875         if (chip->msi)
1876                 if (pci_enable_msi(pci) < 0)
1877                         chip->msi = 0;
1878         if (azx_acquire_irq(chip, 1) < 0)
1879                 return -EIO;
1880         azx_init_pci(chip);
1881
1882         if (snd_hda_codecs_inuse(chip->bus))
1883                 azx_init_chip(chip);
1884
1885         snd_hda_resume(chip->bus);
1886         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1887         return 0;
1888 }
1889 #endif /* CONFIG_PM */
1890
1891
1892 /*
1893  * destructor
1894  */
1895 static int azx_free(struct azx *chip)
1896 {
1897         int i;
1898
1899         if (chip->initialized) {
1900                 azx_clear_irq_pending(chip);
1901                 for (i = 0; i < chip->num_streams; i++)
1902                         azx_stream_stop(chip, &chip->azx_dev[i]);
1903                 azx_stop_chip(chip);
1904         }
1905
1906         if (chip->irq >= 0)
1907                 free_irq(chip->irq, (void*)chip);
1908         if (chip->msi)
1909                 pci_disable_msi(chip->pci);
1910         if (chip->remap_addr)
1911                 iounmap(chip->remap_addr);
1912
1913         if (chip->azx_dev) {
1914                 for (i = 0; i < chip->num_streams; i++)
1915                         if (chip->azx_dev[i].bdl.area)
1916                                 snd_dma_free_pages(&chip->azx_dev[i].bdl);
1917         }
1918         if (chip->rb.area)
1919                 snd_dma_free_pages(&chip->rb);
1920         if (chip->posbuf.area)
1921                 snd_dma_free_pages(&chip->posbuf);
1922         pci_release_regions(chip->pci);
1923         pci_disable_device(chip->pci);
1924         kfree(chip->azx_dev);
1925         kfree(chip);
1926
1927         return 0;
1928 }
1929
1930 static int azx_dev_free(struct snd_device *device)
1931 {
1932         return azx_free(device->device_data);
1933 }
1934
1935 /*
1936  * white/black-listing for position_fix
1937  */
1938 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
1939         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1940         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1941         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1942         {}
1943 };
1944
1945 static int __devinit check_position_fix(struct azx *chip, int fix)
1946 {
1947         const struct snd_pci_quirk *q;
1948
1949         if (fix == POS_FIX_AUTO) {
1950                 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1951                 if (q) {
1952                         printk(KERN_INFO
1953                                     "hda_intel: position_fix set to %d "
1954                                     "for device %04x:%04x\n",
1955                                     q->value, q->subvendor, q->subdevice);
1956                         return q->value;
1957                 }
1958         }
1959         return fix;
1960 }
1961
1962 /*
1963  * black-lists for probe_mask
1964  */
1965 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
1966         /* Thinkpad often breaks the controller communication when accessing
1967          * to the non-working (or non-existing) modem codec slot.
1968          */
1969         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1970         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1971         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1972         {}
1973 };
1974
1975 static void __devinit check_probe_mask(struct azx *chip, int dev)
1976 {
1977         const struct snd_pci_quirk *q;
1978
1979         if (probe_mask[dev] == -1) {
1980                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1981                 if (q) {
1982                         printk(KERN_INFO
1983                                "hda_intel: probe_mask set to 0x%x "
1984                                "for device %04x:%04x\n",
1985                                q->value, q->subvendor, q->subdevice);
1986                         probe_mask[dev] = q->value;
1987                 }
1988         }
1989 }
1990
1991
1992 /*
1993  * constructor
1994  */
1995 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
1996                                 int dev, int driver_type,
1997                                 struct azx **rchip)
1998 {
1999         struct azx *chip;
2000         int i, err;
2001         unsigned short gcap;
2002         static struct snd_device_ops ops = {
2003                 .dev_free = azx_dev_free,
2004         };
2005
2006         *rchip = NULL;
2007
2008         err = pci_enable_device(pci);
2009         if (err < 0)
2010                 return err;
2011
2012         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
2013         if (!chip) {
2014                 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
2015                 pci_disable_device(pci);
2016                 return -ENOMEM;
2017         }
2018
2019         spin_lock_init(&chip->reg_lock);
2020         mutex_init(&chip->open_mutex);
2021         chip->card = card;
2022         chip->pci = pci;
2023         chip->irq = -1;
2024         chip->driver_type = driver_type;
2025         chip->msi = enable_msi;
2026         chip->dev_index = dev;
2027         INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
2028
2029         chip->position_fix = check_position_fix(chip, position_fix[dev]);
2030         check_probe_mask(chip, dev);
2031
2032         chip->single_cmd = single_cmd;
2033
2034         if (bdl_pos_adj[dev] < 0) {
2035                 switch (chip->driver_type) {
2036                 case AZX_DRIVER_ICH:
2037                         bdl_pos_adj[dev] = 1;
2038                         break;
2039                 default:
2040                         bdl_pos_adj[dev] = 32;
2041                         break;
2042                 }
2043         }
2044
2045 #if BITS_PER_LONG != 64
2046         /* Fix up base address on ULI M5461 */
2047         if (chip->driver_type == AZX_DRIVER_ULI) {
2048                 u16 tmp3;
2049                 pci_read_config_word(pci, 0x40, &tmp3);
2050                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
2051                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
2052         }
2053 #endif
2054
2055         err = pci_request_regions(pci, "ICH HD audio");
2056         if (err < 0) {
2057                 kfree(chip);
2058                 pci_disable_device(pci);
2059                 return err;
2060         }
2061
2062         chip->addr = pci_resource_start(pci, 0);
2063         chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
2064         if (chip->remap_addr == NULL) {
2065                 snd_printk(KERN_ERR SFX "ioremap error\n");
2066                 err = -ENXIO;
2067                 goto errout;
2068         }
2069
2070         if (chip->msi)
2071                 if (pci_enable_msi(pci) < 0)
2072                         chip->msi = 0;
2073
2074         if (azx_acquire_irq(chip, 0) < 0) {
2075                 err = -EBUSY;
2076                 goto errout;
2077         }
2078
2079         pci_set_master(pci);
2080         synchronize_irq(chip->irq);
2081
2082         gcap = azx_readw(chip, GCAP);
2083         snd_printdd("chipset global capabilities = 0x%x\n", gcap);
2084
2085         /* allow 64bit DMA address if supported by H/W */
2086         if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
2087                 pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
2088
2089         /* read number of streams from GCAP register instead of using
2090          * hardcoded value
2091          */
2092         chip->capture_streams = (gcap >> 8) & 0x0f;
2093         chip->playback_streams = (gcap >> 12) & 0x0f;
2094         if (!chip->playback_streams && !chip->capture_streams) {
2095                 /* gcap didn't give any info, switching to old method */
2096
2097                 switch (chip->driver_type) {
2098                 case AZX_DRIVER_ULI:
2099                         chip->playback_streams = ULI_NUM_PLAYBACK;
2100                         chip->capture_streams = ULI_NUM_CAPTURE;
2101                         break;
2102                 case AZX_DRIVER_ATIHDMI:
2103                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
2104                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
2105                         break;
2106                 default:
2107                         chip->playback_streams = ICH6_NUM_PLAYBACK;
2108                         chip->capture_streams = ICH6_NUM_CAPTURE;
2109                         break;
2110                 }
2111         }
2112         chip->capture_index_offset = 0;
2113         chip->playback_index_offset = chip->capture_streams;
2114         chip->num_streams = chip->playback_streams + chip->capture_streams;
2115         chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
2116                                 GFP_KERNEL);
2117         if (!chip->azx_dev) {
2118                 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
2119                 goto errout;
2120         }
2121
2122         for (i = 0; i < chip->num_streams; i++) {
2123                 /* allocate memory for the BDL for each stream */
2124                 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2125                                           snd_dma_pci_data(chip->pci),
2126                                           BDL_SIZE, &chip->azx_dev[i].bdl);
2127                 if (err < 0) {
2128                         snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
2129                         goto errout;
2130                 }
2131         }
2132         /* allocate memory for the position buffer */
2133         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
2134                                   snd_dma_pci_data(chip->pci),
2135                                   chip->num_streams * 8, &chip->posbuf);
2136         if (err < 0) {
2137                 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
2138                 goto errout;
2139         }
2140         /* allocate CORB/RIRB */
2141         if (!chip->single_cmd) {
2142                 err = azx_alloc_cmd_io(chip);
2143                 if (err < 0)
2144                         goto errout;
2145         }
2146
2147         /* initialize streams */
2148         azx_init_stream(chip);
2149
2150         /* initialize chip */
2151         azx_init_pci(chip);
2152         azx_init_chip(chip);
2153
2154         /* codec detection */
2155         if (!chip->codec_mask) {
2156                 snd_printk(KERN_ERR SFX "no codecs found!\n");
2157                 err = -ENODEV;
2158                 goto errout;
2159         }
2160
2161         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
2162         if (err <0) {
2163                 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
2164                 goto errout;
2165         }
2166
2167         strcpy(card->driver, "HDA-Intel");
2168         strcpy(card->shortname, driver_short_names[chip->driver_type]);
2169         sprintf(card->longname, "%s at 0x%lx irq %i",
2170                 card->shortname, chip->addr, chip->irq);
2171
2172         *rchip = chip;
2173         return 0;
2174
2175  errout:
2176         azx_free(chip);
2177         return err;
2178 }
2179
2180 static void power_down_all_codecs(struct azx *chip)
2181 {
2182 #ifdef CONFIG_SND_HDA_POWER_SAVE
2183         /* The codecs were powered up in snd_hda_codec_new().
2184          * Now all initialization done, so turn them down if possible
2185          */
2186         struct hda_codec *codec;
2187         list_for_each_entry(codec, &chip->bus->codec_list, list) {
2188                 snd_hda_power_down(codec);
2189         }
2190 #endif
2191 }
2192
2193 static int __devinit azx_probe(struct pci_dev *pci,
2194                                const struct pci_device_id *pci_id)
2195 {
2196         static int dev;
2197         struct snd_card *card;
2198         struct azx *chip;
2199         int err;
2200
2201         if (dev >= SNDRV_CARDS)
2202                 return -ENODEV;
2203         if (!enable[dev]) {
2204                 dev++;
2205                 return -ENOENT;
2206         }
2207
2208         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2209         if (!card) {
2210                 snd_printk(KERN_ERR SFX "Error creating card!\n");
2211                 return -ENOMEM;
2212         }
2213
2214         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2215         if (err < 0) {
2216                 snd_card_free(card);
2217                 return err;
2218         }
2219         card->private_data = chip;
2220
2221         /* create codec instances */
2222         err = azx_codec_create(chip, model[dev], probe_mask[dev]);
2223         if (err < 0) {
2224                 snd_card_free(card);
2225                 return err;
2226         }
2227
2228         /* create PCM streams */
2229         err = azx_pcm_create(chip);
2230         if (err < 0) {
2231                 snd_card_free(card);
2232                 return err;
2233         }
2234
2235         /* create mixer controls */
2236         err = azx_mixer_create(chip);
2237         if (err < 0) {
2238                 snd_card_free(card);
2239                 return err;
2240         }
2241
2242         snd_card_set_dev(card, &pci->dev);
2243
2244         err = snd_card_register(card);
2245         if (err < 0) {
2246                 snd_card_free(card);
2247                 return err;
2248         }
2249
2250         pci_set_drvdata(pci, card);
2251         chip->running = 1;
2252         power_down_all_codecs(chip);
2253
2254         dev++;
2255         return err;
2256 }
2257
2258 static void __devexit azx_remove(struct pci_dev *pci)
2259 {
2260         snd_card_free(pci_get_drvdata(pci));
2261         pci_set_drvdata(pci, NULL);
2262 }
2263
2264 /* PCI IDs */
2265 static struct pci_device_id azx_ids[] = {
2266         /* ICH 6..10 */
2267         { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2268         { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2269         { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2270         { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2271         { PCI_DEVICE(0x8086, 0x2911), .driver_data = AZX_DRIVER_ICH },
2272         { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2273         { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2274         { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2275         { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2276         /* PCH */
2277         { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
2278         /* SCH */
2279         { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2280         /* ATI SB 450/600 */
2281         { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2282         { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2283         /* ATI HDMI */
2284         { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2285         { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2286         { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2287         { PCI_DEVICE(0x1002, 0x970f), .driver_data = AZX_DRIVER_ATIHDMI },
2288         { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2289         { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2290         { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2291         { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2292         { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2293         { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2294         { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2295         { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2296         { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2297         { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2298         /* VIA VT8251/VT8237A */
2299         { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2300         /* SIS966 */
2301         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2302         /* ULI M5461 */
2303         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2304         /* NVIDIA MCP */
2305         { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2306         { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2307         { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2308         { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2309         { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2310         { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2311         { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2312         { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2313         { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2314         { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2315         { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2316         { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2317         { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2318         { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2319         { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2320         { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2321         { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2322         { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2323         { PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
2324         { PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
2325         { PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
2326         { PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
2327         /* Teradici */
2328         { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
2329         { 0, }
2330 };
2331 MODULE_DEVICE_TABLE(pci, azx_ids);
2332
2333 /* pci_driver definition */
2334 static struct pci_driver driver = {
2335         .name = "HDA Intel",
2336         .id_table = azx_ids,
2337         .probe = azx_probe,
2338         .remove = __devexit_p(azx_remove),
2339 #ifdef CONFIG_PM
2340         .suspend = azx_suspend,
2341         .resume = azx_resume,
2342 #endif
2343 };
2344
2345 static int __init alsa_card_azx_init(void)
2346 {
2347         return pci_register_driver(&driver);
2348 }
2349
2350 static void __exit alsa_card_azx_exit(void)
2351 {
2352         pci_unregister_driver(&driver);
2353 }
2354
2355 module_init(alsa_card_azx_init)
2356 module_exit(alsa_card_azx_exit)