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

   1 /*
   2  *
   3  *  hda_intel.c - Implementation of primary alsa driver code base
   4  *                for Intel HD Audio.
   5  *
   6  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
   7  *
   8  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   9  *                     PeiSen Hou <pshou@realtek.com.tw>
  10  *
  11  *  This program is free software; you can redistribute it and/or modify it
  12  *  under the terms of the GNU General Public License as published by the Free
  13  *  Software Foundation; either version 2 of the License, or (at your option)
  14  *  any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful, but WITHOUT
  17  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  19  *  more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License along with
  22  *  this program; if not, write to the Free Software Foundation, Inc., 59
  23  *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  24  *
  25  *  CONTACTS:
  26  *
  27  *  Matt Jared          matt.jared@intel.com
  28  *  Andy Kopp           andy.kopp@intel.com
  29  *  Dan Kogan           dan.d.kogan@intel.com
  30  *
  31  *  CHANGES:
  32  *
  33  *  2004.12.01  Major rewrite by tiwai, merged the work of pshou
  34  *
  35  */
  36
  37 #include <asm/io.h>
  38 #include <linux/delay.h>
  39 #include <linux/interrupt.h>
  40 #include <linux/kernel.h>
  41 #include <linux/module.h>
  42 #include <linux/dma-mapping.h>
  43 #include <linux/moduleparam.h>
  44 #include <linux/init.h>
  45 #include <linux/slab.h>
  46 #include <linux/pci.h>
  47 #include <linux/mutex.h>
  48 #include <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 probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
  59 static int single_cmd;
  60 static int enable_msi;
  61
  62 module_param_array(index, int, NULL, 0444);
  63 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
  64 module_param_array(id, charp, NULL, 0444);
  65 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
  66 module_param_array(enable, bool, NULL, 0444);
  67 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
  68 module_param_array(model, charp, NULL, 0444);
  69 MODULE_PARM_DESC(model, "Use the given board model.");
  70 module_param_array(position_fix, int, NULL, 0444);
  71 MODULE_PARM_DESC(position_fix, "Fix DMA pointer "
  72                  "(0 = auto, 1 = none, 2 = POSBUF, 3 = FIFO size).");
  73 module_param_array(probe_mask, int, NULL, 0444);
  74 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
  75 module_param(single_cmd, bool, 0444);
  76 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
  77                  "(for debugging only).");
  78 module_param(enable_msi, int, 0444);
  79 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
  80
  81 #ifdef CONFIG_SND_HDA_POWER_SAVE
  82 /* power_save option is defined in hda_codec.c */
  83
  84 /* reset the HD-audio controller in power save mode.
  85  * this may give more power-saving, but will take longer time to
  86  * wake up.
  87  */
  88 static int power_save_controller = 1;
  89 module_param(power_save_controller, bool, 0644);
  90 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
  91 #endif
  92
  93 MODULE_LICENSE("GPL");
  94 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
  95                          "{Intel, ICH6M},"
  96                          "{Intel, ICH7},"
  97                          "{Intel, ESB2},"
  98                          "{Intel, ICH8},"
  99                          "{Intel, ICH9},"
 100                          "{Intel, ICH10},"
 101                          "{Intel, SCH},"
 102                          "{ATI, SB450},"
 103                          "{ATI, SB600},"
 104                          "{ATI, RS600},"
 105                          "{ATI, RS690},"
 106                          "{ATI, RS780},"
 107                          "{ATI, R600},"
 108                          "{ATI, RV630},"
 109                          "{ATI, RV610},"
 110                          "{ATI, RV670},"
 111                          "{ATI, RV635},"
 112                          "{ATI, RV620},"
 113                          "{ATI, RV770},"
 114                          "{VIA, VT8251},"
 115                          "{VIA, VT8237A},"
 116                          "{SiS, SIS966},"
 117                          "{ULI, M5461}}");
 118 MODULE_DESCRIPTION("Intel HDA driver");
 119
 120 #define SFX     "hda-intel: "
 121
 122
 123 /*
 124  * registers
 125  */
 126 #define ICH6_REG_GCAP                   0x00
 127 #define ICH6_REG_VMIN                   0x02
 128 #define ICH6_REG_VMAJ                   0x03
 129 #define ICH6_REG_OUTPAY                 0x04
 130 #define ICH6_REG_INPAY                  0x06
 131 #define ICH6_REG_GCTL                   0x08
 132 #define ICH6_REG_WAKEEN                 0x0c
 133 #define ICH6_REG_STATESTS               0x0e
 134 #define ICH6_REG_GSTS                   0x10
 135 #define ICH6_REG_INTCTL                 0x20
 136 #define ICH6_REG_INTSTS                 0x24
 137 #define ICH6_REG_WALCLK                 0x30
 138 #define ICH6_REG_SYNC                   0x34
 139 #define ICH6_REG_CORBLBASE              0x40
 140 #define ICH6_REG_CORBUBASE              0x44
 141 #define ICH6_REG_CORBWP                 0x48
 142 #define ICH6_REG_CORBRP                 0x4A
 143 #define ICH6_REG_CORBCTL                0x4c
 144 #define ICH6_REG_CORBSTS                0x4d
 145 #define ICH6_REG_CORBSIZE               0x4e
 146
 147 #define ICH6_REG_RIRBLBASE              0x50
 148 #define ICH6_REG_RIRBUBASE              0x54
 149 #define ICH6_REG_RIRBWP                 0x58
 150 #define ICH6_REG_RINTCNT                0x5a
 151 #define ICH6_REG_RIRBCTL                0x5c
 152 #define ICH6_REG_RIRBSTS                0x5d
 153 #define ICH6_REG_RIRBSIZE               0x5e
 154
 155 #define ICH6_REG_IC                     0x60
 156 #define ICH6_REG_IR                     0x64
 157 #define ICH6_REG_IRS                    0x68
 158 #define   ICH6_IRS_VALID        (1<<1)
 159 #define   ICH6_IRS_BUSY         (1<<0)
 160
 161 #define ICH6_REG_DPLBASE                0x70
 162 #define ICH6_REG_DPUBASE                0x74
 163 #define   ICH6_DPLBASE_ENABLE   0x1     /* Enable position buffer */
 164
 165 /* SD offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
 166 enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
 167
 168 /* stream register offsets from stream base */
 169 #define ICH6_REG_SD_CTL                 0x00
 170 #define ICH6_REG_SD_STS                 0x03
 171 #define ICH6_REG_SD_LPIB                0x04
 172 #define ICH6_REG_SD_CBL                 0x08
 173 #define ICH6_REG_SD_LVI                 0x0c
 174 #define ICH6_REG_SD_FIFOW               0x0e
 175 #define ICH6_REG_SD_FIFOSIZE            0x10
 176 #define ICH6_REG_SD_FORMAT              0x12
 177 #define ICH6_REG_SD_BDLPL               0x18
 178 #define ICH6_REG_SD_BDLPU               0x1c
 179
 180 /* PCI space */
 181 #define ICH6_PCIREG_TCSEL       0x44
 182
 183 /*
 184  * other constants
 185  */
 186
 187 /* max number of SDs */
 188 /* ICH, ATI and VIA have 4 playback and 4 capture */
 189 #define ICH6_NUM_CAPTURE        4
 190 #define ICH6_NUM_PLAYBACK       4
 191
 192 /* ULI has 6 playback and 5 capture */
 193 #define ULI_NUM_CAPTURE         5
 194 #define ULI_NUM_PLAYBACK        6
 195
 196 /* ATI HDMI has 1 playback and 0 capture */
 197 #define ATIHDMI_NUM_CAPTURE     0
 198 #define ATIHDMI_NUM_PLAYBACK    1
 199
 200 /* this number is statically defined for simplicity */
 201 #define MAX_AZX_DEV             16
 202
 203 /* max number of fragments - we may use more if allocating more pages for BDL */
 204 #define BDL_SIZE                4096
 205 #define AZX_MAX_BDL_ENTRIES     (BDL_SIZE / 16)
 206 #define AZX_MAX_FRAG            32
 207 /* max buffer size - no h/w limit, you can increase as you like */
 208 #define AZX_MAX_BUF_SIZE        (1024*1024*1024)
 209 /* max number of PCM devics per card */
 210 #define AZX_MAX_PCMS            8
 211
 212 /* RIRB int mask: overrun[2], response[0] */
 213 #define RIRB_INT_RESPONSE       0x01
 214 #define RIRB_INT_OVERRUN        0x04
 215 #define RIRB_INT_MASK           0x05
 216
 217 /* STATESTS int mask: SD2,SD1,SD0 */
 218 #define AZX_MAX_CODECS          3
 219 #define STATESTS_INT_MASK       0x07
 220
 221 /* SD_CTL bits */
 222 #define SD_CTL_STREAM_RESET     0x01    /* stream reset bit */
 223 #define SD_CTL_DMA_START        0x02    /* stream DMA start bit */
 224 #define SD_CTL_STRIPE           (3 << 16)       /* stripe control */
 225 #define SD_CTL_TRAFFIC_PRIO     (1 << 18)       /* traffic priority */
 226 #define SD_CTL_DIR              (1 << 19)       /* bi-directional stream */
 227 #define SD_CTL_STREAM_TAG_MASK  (0xf << 20)
 228 #define SD_CTL_STREAM_TAG_SHIFT 20
 229
 230 /* SD_CTL and SD_STS */
 231 #define SD_INT_DESC_ERR         0x10    /* descriptor error interrupt */
 232 #define SD_INT_FIFO_ERR         0x08    /* FIFO error interrupt */
 233 #define SD_INT_COMPLETE         0x04    /* completion interrupt */
 234 #define SD_INT_MASK             (SD_INT_DESC_ERR|SD_INT_FIFO_ERR|\
 235                                  SD_INT_COMPLETE)
 236
 237 /* SD_STS */
 238 #define SD_STS_FIFO_READY       0x20    /* FIFO ready */
 239
 240 /* INTCTL and INTSTS */
 241 #define ICH6_INT_ALL_STREAM     0xff       /* all stream interrupts */
 242 #define ICH6_INT_CTRL_EN        0x40000000 /* controller interrupt enable bit */
 243 #define ICH6_INT_GLOBAL_EN      0x80000000 /* global interrupt enable bit */
 244
 245 /* GCTL unsolicited response enable bit */
 246 #define ICH6_GCTL_UREN          (1<<8)
 247
 248 /* GCTL reset bit */
 249 #define ICH6_GCTL_RESET         (1<<0)
 250
 251 /* CORB/RIRB control, read/write pointer */
 252 #define ICH6_RBCTL_DMA_EN       0x02    /* enable DMA */
 253 #define ICH6_RBCTL_IRQ_EN       0x01    /* enable IRQ */
 254 #define ICH6_RBRWP_CLR          0x8000  /* read/write pointer clear */
 255 /* below are so far hardcoded - should read registers in future */
 256 #define ICH6_MAX_CORB_ENTRIES   256
 257 #define ICH6_MAX_RIRB_ENTRIES   256
 258
 259 /* position fix mode */
 260 enum {
 261         POS_FIX_AUTO,
 262         POS_FIX_NONE,
 263         POS_FIX_POSBUF,
 264         POS_FIX_FIFO,
 265 };
 266
 267 /* Defines for ATI HD Audio support in SB450 south bridge */
 268 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
 269 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
 270
 271 /* Defines for Nvidia HDA support */
 272 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
 273 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
 274
 275 /* Defines for Intel SCH HDA snoop control */
 276 #define INTEL_SCH_HDA_DEVC      0x78
 277 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
 278
 279
 280 /*
 281  */
 282
 283 struct azx_dev {
 284         struct snd_dma_buffer bdl; /* BDL buffer */
 285         u32 *posbuf;            /* position buffer pointer */
 286
 287         unsigned int bufsize;   /* size of the play buffer in bytes */
 288         unsigned int frags;     /* number for period in the play buffer */
 289         unsigned int fifo_size; /* FIFO size */
 290
 291         void __iomem *sd_addr;  /* stream descriptor pointer */
 292
 293         u32 sd_int_sta_mask;    /* stream int status mask */
 294
 295         /* pcm support */
 296         struct snd_pcm_substream *substream;    /* assigned substream,
 297                                                  * set in PCM open
 298                                                  */
 299         unsigned int format_val;        /* format value to be set in the
 300                                          * controller and the codec
 301                                          */
 302         unsigned char stream_tag;       /* assigned stream */
 303         unsigned char index;            /* stream index */
 304         /* for sanity check of position buffer */
 305         unsigned int period_intr;
 306
 307         unsigned int opened :1;
 308         unsigned int running :1;
 309 };
 310
 311 /* CORB/RIRB */
 312 struct azx_rb {
 313         u32 *buf;               /* CORB/RIRB buffer
 314                                  * Each CORB entry is 4byte, RIRB is 8byte
 315                                  */
 316         dma_addr_t addr;        /* physical address of CORB/RIRB buffer */
 317         /* for RIRB */
 318         unsigned short rp, wp;  /* read/write pointers */
 319         int cmds;               /* number of pending requests */
 320         u32 res;                /* last read value */
 321 };
 322
 323 struct azx {
 324         struct snd_card *card;
 325         struct pci_dev *pci;
 326
 327         /* chip type specific */
 328         int driver_type;
 329         int playback_streams;
 330         int playback_index_offset;
 331         int capture_streams;
 332         int capture_index_offset;
 333         int num_streams;
 334
 335         /* pci resources */
 336         unsigned long addr;
 337         void __iomem *remap_addr;
 338         int irq;
 339
 340         /* locks */
 341         spinlock_t reg_lock;
 342         struct mutex open_mutex;
 343
 344         /* streams (x num_streams) */
 345         struct azx_dev *azx_dev;
 346
 347         /* PCM */
 348         struct snd_pcm *pcm[AZX_MAX_PCMS];
 349
 350         /* HD codec */
 351         unsigned short codec_mask;
 352         struct hda_bus *bus;
 353
 354         /* CORB/RIRB */
 355         struct azx_rb corb;
 356         struct azx_rb rirb;
 357
 358         /* CORB/RIRB and position buffers */
 359         struct snd_dma_buffer rb;
 360         struct snd_dma_buffer posbuf;
 361
 362         /* flags */
 363         int position_fix;
 364         unsigned int running :1;
 365         unsigned int initialized :1;
 366         unsigned int single_cmd :1;
 367         unsigned int polling_mode :1;
 368         unsigned int msi :1;
 369
 370         /* for debugging */
 371         unsigned int last_cmd;  /* last issued command (to sync) */
 372 };
 373
 374 /* driver types */
 375 enum {
 376         AZX_DRIVER_ICH,
 377         AZX_DRIVER_SCH,
 378         AZX_DRIVER_ATI,
 379         AZX_DRIVER_ATIHDMI,
 380         AZX_DRIVER_VIA,
 381         AZX_DRIVER_SIS,
 382         AZX_DRIVER_ULI,
 383         AZX_DRIVER_NVIDIA,
 384 };
 385
 386 static char *driver_short_names[] __devinitdata = {
 387         [AZX_DRIVER_ICH] = "HDA Intel",
 388         [AZX_DRIVER_SCH] = "HDA Intel MID",
 389         [AZX_DRIVER_ATI] = "HDA ATI SB",
 390         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 391         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
 392         [AZX_DRIVER_SIS] = "HDA SIS966",
 393         [AZX_DRIVER_ULI] = "HDA ULI M5461",
 394         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
 395 };
 396
 397 /*
 398  * macros for easy use
 399  */
 400 #define azx_writel(chip,reg,value) \
 401         writel(value, (chip)->remap_addr + ICH6_REG_##reg)
 402 #define azx_readl(chip,reg) \
 403         readl((chip)->remap_addr + ICH6_REG_##reg)
 404 #define azx_writew(chip,reg,value) \
 405         writew(value, (chip)->remap_addr + ICH6_REG_##reg)
 406 #define azx_readw(chip,reg) \
 407         readw((chip)->remap_addr + ICH6_REG_##reg)
 408 #define azx_writeb(chip,reg,value) \
 409         writeb(value, (chip)->remap_addr + ICH6_REG_##reg)
 410 #define azx_readb(chip,reg) \
 411         readb((chip)->remap_addr + ICH6_REG_##reg)
 412
 413 #define azx_sd_writel(dev,reg,value) \
 414         writel(value, (dev)->sd_addr + ICH6_REG_##reg)
 415 #define azx_sd_readl(dev,reg) \
 416         readl((dev)->sd_addr + ICH6_REG_##reg)
 417 #define azx_sd_writew(dev,reg,value) \
 418         writew(value, (dev)->sd_addr + ICH6_REG_##reg)
 419 #define azx_sd_readw(dev,reg) \
 420         readw((dev)->sd_addr + ICH6_REG_##reg)
 421 #define azx_sd_writeb(dev,reg,value) \
 422         writeb(value, (dev)->sd_addr + ICH6_REG_##reg)
 423 #define azx_sd_readb(dev,reg) \
 424         readb((dev)->sd_addr + ICH6_REG_##reg)
 425
 426 /* for pcm support */
 427 #define get_azx_dev(substream) (substream->runtime->private_data)
 428
 429 /* Get the upper 32bit of the given dma_addr_t
 430  * Compiler should optimize and eliminate the code if dma_addr_t is 32bit
 431  */
 432 #define upper_32bit(addr) (sizeof(addr) > 4 ? (u32)((addr) >> 32) : (u32)0)
 433
 434 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
 435
 436 /*
 437  * Interface for HD codec
 438  */
 439
 440 /*
 441  * CORB / RIRB interface
 442  */
 443 static int azx_alloc_cmd_io(struct azx *chip)
 444 {
 445         int err;
 446
 447         /* single page (at least 4096 bytes) must suffice for both ringbuffes */
 448         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
 449                                   snd_dma_pci_data(chip->pci),
 450                                   PAGE_SIZE, &chip->rb);
 451         if (err < 0) {
 452                 snd_printk(KERN_ERR SFX "cannot allocate CORB/RIRB\n");
 453                 return err;
 454         }
 455         return 0;
 456 }
 457
 458 static void azx_init_cmd_io(struct azx *chip)
 459 {
 460         /* CORB set up */
 461         chip->corb.addr = chip->rb.addr;
 462         chip->corb.buf = (u32 *)chip->rb.area;
 463         azx_writel(chip, CORBLBASE, (u32)chip->corb.addr);
 464         azx_writel(chip, CORBUBASE, upper_32bit(chip->corb.addr));
 465
 466         /* set the corb size to 256 entries (ULI requires explicitly) */
 467         azx_writeb(chip, CORBSIZE, 0x02);
 468         /* set the corb write pointer to 0 */
 469         azx_writew(chip, CORBWP, 0);
 470         /* reset the corb hw read pointer */
 471         azx_writew(chip, CORBRP, ICH6_RBRWP_CLR);
 472         /* enable corb dma */
 473         azx_writeb(chip, CORBCTL, ICH6_RBCTL_DMA_EN);
 474
 475         /* RIRB set up */
 476         chip->rirb.addr = chip->rb.addr + 2048;
 477         chip->rirb.buf = (u32 *)(chip->rb.area + 2048);
 478         azx_writel(chip, RIRBLBASE, (u32)chip->rirb.addr);
 479         azx_writel(chip, RIRBUBASE, upper_32bit(chip->rirb.addr));
 480
 481         /* set the rirb size to 256 entries (ULI requires explicitly) */
 482         azx_writeb(chip, RIRBSIZE, 0x02);
 483         /* reset the rirb hw write pointer */
 484         azx_writew(chip, RIRBWP, ICH6_RBRWP_CLR);
 485         /* set N=1, get RIRB response interrupt for new entry */
 486         azx_writew(chip, RINTCNT, 1);
 487         /* enable rirb dma and response irq */
 488         azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
 489         chip->rirb.rp = chip->rirb.cmds = 0;
 490 }
 491
 492 static void azx_free_cmd_io(struct azx *chip)
 493 {
 494         /* disable ringbuffer DMAs */
 495         azx_writeb(chip, RIRBCTL, 0);
 496         azx_writeb(chip, CORBCTL, 0);
 497 }
 498
 499 /* send a command */
 500 static int azx_corb_send_cmd(struct hda_codec *codec, u32 val)
 501 {
 502         struct azx *chip = codec->bus->private_data;
 503         unsigned int wp;
 504
 505         /* add command to corb */
 506         wp = azx_readb(chip, CORBWP);
 507         wp++;
 508         wp %= ICH6_MAX_CORB_ENTRIES;
 509
 510         spin_lock_irq(&chip->reg_lock);
 511         chip->rirb.cmds++;
 512         chip->corb.buf[wp] = cpu_to_le32(val);
 513         azx_writel(chip, CORBWP, wp);
 514         spin_unlock_irq(&chip->reg_lock);
 515
 516         return 0;
 517 }
 518
 519 #define ICH6_RIRB_EX_UNSOL_EV   (1<<4)
 520
 521 /* retrieve RIRB entry - called from interrupt handler */
 522 static void azx_update_rirb(struct azx *chip)
 523 {
 524         unsigned int rp, wp;
 525         u32 res, res_ex;
 526
 527         wp = azx_readb(chip, RIRBWP);
 528         if (wp == chip->rirb.wp)
 529                 return;
 530         chip->rirb.wp = wp;
 531
 532         while (chip->rirb.rp != wp) {
 533                 chip->rirb.rp++;
 534                 chip->rirb.rp %= ICH6_MAX_RIRB_ENTRIES;
 535
 536                 rp = chip->rirb.rp << 1; /* an RIRB entry is 8-bytes */
 537                 res_ex = le32_to_cpu(chip->rirb.buf[rp + 1]);
 538                 res = le32_to_cpu(chip->rirb.buf[rp]);
 539                 if (res_ex & ICH6_RIRB_EX_UNSOL_EV)
 540                         snd_hda_queue_unsol_event(chip->bus, res, res_ex);
 541                 else if (chip->rirb.cmds) {
 542                         chip->rirb.res = res;
 543                         smp_wmb();
 544                         chip->rirb.cmds--;
 545                 }
 546         }
 547 }
 548
 549 /* receive a response */
 550 static unsigned int azx_rirb_get_response(struct hda_codec *codec)
 551 {
 552         struct azx *chip = codec->bus->private_data;
 553         unsigned long timeout;
 554
 555  again:
 556         timeout = jiffies + msecs_to_jiffies(1000);
 557         for (;;) {
 558                 if (chip->polling_mode) {
 559                         spin_lock_irq(&chip->reg_lock);
 560                         azx_update_rirb(chip);
 561                         spin_unlock_irq(&chip->reg_lock);
 562                 }
 563                 if (!chip->rirb.cmds) {
 564                         smp_rmb();
 565                         return chip->rirb.res; /* the last value */
 566                 }
 567                 if (time_after(jiffies, timeout))
 568                         break;
 569                 if (codec->bus->needs_damn_long_delay)
 570                         msleep(2); /* temporary workaround */
 571                 else {
 572                         udelay(10);
 573                         cond_resched();
 574                 }
 575         }
 576
 577         if (chip->msi) {
 578                 snd_printk(KERN_WARNING "hda_intel: No response from codec, "
 579                            "disabling MSI: last cmd=0x%08x\n", chip->last_cmd);
 580                 free_irq(chip->irq, chip);
 581                 chip->irq = -1;
 582                 pci_disable_msi(chip->pci);
 583                 chip->msi = 0;
 584                 if (azx_acquire_irq(chip, 1) < 0)
 585                         return -1;
 586                 goto again;
 587         }
 588
 589         if (!chip->polling_mode) {
 590                 snd_printk(KERN_WARNING "hda_intel: azx_get_response timeout, "
 591                            "switching to polling mode: last cmd=0x%08x\n",
 592                            chip->last_cmd);
 593                 chip->polling_mode = 1;
 594                 goto again;
 595         }
 596
 597         snd_printk(KERN_ERR "hda_intel: azx_get_response timeout, "
 598                    "switching to single_cmd mode: last cmd=0x%08x\n",
 599                    chip->last_cmd);
 600         chip->rirb.rp = azx_readb(chip, RIRBWP);
 601         chip->rirb.cmds = 0;
 602         /* switch to single_cmd mode */
 603         chip->single_cmd = 1;
 604         azx_free_cmd_io(chip);
 605         return -1;
 606 }
 607
 608 /*
 609  * Use the single immediate command instead of CORB/RIRB for simplicity
 610  *
 611  * Note: according to Intel, this is not preferred use.  The command was
 612  *       intended for the BIOS only, and may get confused with unsolicited
 613  *       responses.  So, we shouldn't use it for normal operation from the
 614  *       driver.
 615  *       I left the codes, however, for debugging/testing purposes.
 616  */
 617
 618 /* send a command */
 619 static int azx_single_send_cmd(struct hda_codec *codec, u32 val)
 620 {
 621         struct azx *chip = codec->bus->private_data;
 622         int timeout = 50;
 623
 624         while (timeout--) {
 625                 /* check ICB busy bit */
 626                 if (!((azx_readw(chip, IRS) & ICH6_IRS_BUSY))) {
 627                         /* Clear IRV valid bit */
 628                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
 629                                    ICH6_IRS_VALID);
 630                         azx_writel(chip, IC, val);
 631                         azx_writew(chip, IRS, azx_readw(chip, IRS) |
 632                                    ICH6_IRS_BUSY);
 633                         return 0;
 634                 }
 635                 udelay(1);
 636         }
 637         if (printk_ratelimit())
 638                 snd_printd(SFX "send_cmd timeout: IRS=0x%x, val=0x%x\n",
 639                            azx_readw(chip, IRS), val);
 640         return -EIO;
 641 }
 642
 643 /* receive a response */
 644 static unsigned int azx_single_get_response(struct hda_codec *codec)
 645 {
 646         struct azx *chip = codec->bus->private_data;
 647         int timeout = 50;
 648
 649         while (timeout--) {
 650                 /* check IRV busy bit */
 651                 if (azx_readw(chip, IRS) & ICH6_IRS_VALID)
 652                         return azx_readl(chip, IR);
 653                 udelay(1);
 654         }
 655         if (printk_ratelimit())
 656                 snd_printd(SFX "get_response timeout: IRS=0x%x\n",
 657                            azx_readw(chip, IRS));
 658         return (unsigned int)-1;
 659 }
 660
 661 /*
 662  * The below are the main callbacks from hda_codec.
 663  *
 664  * They are just the skeleton to call sub-callbacks according to the
 665  * current setting of chip->single_cmd.
 666  */
 667
 668 /* send a command */
 669 static int azx_send_cmd(struct hda_codec *codec, hda_nid_t nid,
 670                         int direct, unsigned int verb,
 671                         unsigned int para)
 672 {
 673         struct azx *chip = codec->bus->private_data;
 674         u32 val;
 675
 676         val = (u32)(codec->addr & 0x0f) << 28;
 677         val |= (u32)direct << 27;
 678         val |= (u32)nid << 20;
 679         val |= verb << 8;
 680         val |= para;
 681         chip->last_cmd = val;
 682
 683         if (chip->single_cmd)
 684                 return azx_single_send_cmd(codec, val);
 685         else
 686                 return azx_corb_send_cmd(codec, val);
 687 }
 688
 689 /* get a response */
 690 static unsigned int azx_get_response(struct hda_codec *codec)
 691 {
 692         struct azx *chip = codec->bus->private_data;
 693         if (chip->single_cmd)
 694                 return azx_single_get_response(codec);
 695         else
 696                 return azx_rirb_get_response(codec);
 697 }
 698
 699 #ifdef CONFIG_SND_HDA_POWER_SAVE
 700 static void azx_power_notify(struct hda_codec *codec);
 701 #endif
 702
 703 /* reset codec link */
 704 static int azx_reset(struct azx *chip)
 705 {
 706         int count;
 707
 708         /* clear STATESTS */
 709         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
 710
 711         /* reset controller */
 712         azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
 713
 714         count = 50;
 715         while (azx_readb(chip, GCTL) && --count)
 716                 msleep(1);
 717
 718         /* delay for >= 100us for codec PLL to settle per spec
 719          * Rev 0.9 section 5.5.1
 720          */
 721         msleep(1);
 722
 723         /* Bring controller out of reset */
 724         azx_writeb(chip, GCTL, azx_readb(chip, GCTL) | ICH6_GCTL_RESET);
 725
 726         count = 50;
 727         while (!azx_readb(chip, GCTL) && --count)
 728                 msleep(1);
 729
 730         /* Brent Chartrand said to wait >= 540us for codecs to initialize */
 731         msleep(1);
 732
 733         /* check to see if controller is ready */
 734         if (!azx_readb(chip, GCTL)) {
 735                 snd_printd("azx_reset: controller not ready!\n");
 736                 return -EBUSY;
 737         }
 738
 739         /* Accept unsolicited responses */
 740         azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
 741
 742         /* detect codecs */
 743         if (!chip->codec_mask) {
 744                 chip->codec_mask = azx_readw(chip, STATESTS);
 745                 snd_printdd("codec_mask = 0x%x\n", chip->codec_mask);
 746         }
 747
 748         return 0;
 749 }
 750
 751
 752 /*
 753  * Lowlevel interface
 754  */
 755
 756 /* enable interrupts */
 757 static void azx_int_enable(struct azx *chip)
 758 {
 759         /* enable controller CIE and GIE */
 760         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) |
 761                    ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN);
 762 }
 763
 764 /* disable interrupts */
 765 static void azx_int_disable(struct azx *chip)
 766 {
 767         int i;
 768
 769         /* disable interrupts in stream descriptor */
 770         for (i = 0; i < chip->num_streams; i++) {
 771                 struct azx_dev *azx_dev = &chip->azx_dev[i];
 772                 azx_sd_writeb(azx_dev, SD_CTL,
 773                               azx_sd_readb(azx_dev, SD_CTL) & ~SD_INT_MASK);
 774         }
 775
 776         /* disable SIE for all streams */
 777         azx_writeb(chip, INTCTL, 0);
 778
 779         /* disable controller CIE and GIE */
 780         azx_writel(chip, INTCTL, azx_readl(chip, INTCTL) &
 781                    ~(ICH6_INT_CTRL_EN | ICH6_INT_GLOBAL_EN));
 782 }
 783
 784 /* clear interrupts */
 785 static void azx_int_clear(struct azx *chip)
 786 {
 787         int i;
 788
 789         /* clear stream status */
 790         for (i = 0; i < chip->num_streams; i++) {
 791                 struct azx_dev *azx_dev = &chip->azx_dev[i];
 792                 azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 793         }
 794
 795         /* clear STATESTS */
 796         azx_writeb(chip, STATESTS, STATESTS_INT_MASK);
 797
 798         /* clear rirb status */
 799         azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 800
 801         /* clear int status */
 802         azx_writel(chip, INTSTS, ICH6_INT_CTRL_EN | ICH6_INT_ALL_STREAM);
 803 }
 804
 805 /* start a stream */
 806 static void azx_stream_start(struct azx *chip, struct azx_dev *azx_dev)
 807 {
 808         /* enable SIE */
 809         azx_writeb(chip, INTCTL,
 810                    azx_readb(chip, INTCTL) | (1 << azx_dev->index));
 811         /* set DMA start and interrupt mask */
 812         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
 813                       SD_CTL_DMA_START | SD_INT_MASK);
 814 }
 815
 816 /* stop a stream */
 817 static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev)
 818 {
 819         /* stop DMA */
 820         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
 821                       ~(SD_CTL_DMA_START | SD_INT_MASK));
 822         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */
 823         /* disable SIE */
 824         azx_writeb(chip, INTCTL,
 825                    azx_readb(chip, INTCTL) & ~(1 << azx_dev->index));
 826 }
 827
 828
 829 /*
 830  * reset and start the controller registers
 831  */
 832 static void azx_init_chip(struct azx *chip)
 833 {
 834         if (chip->initialized)
 835                 return;
 836
 837         /* reset controller */
 838         azx_reset(chip);
 839
 840         /* initialize interrupts */
 841         azx_int_clear(chip);
 842         azx_int_enable(chip);
 843
 844         /* initialize the codec command I/O */
 845         if (!chip->single_cmd)
 846                 azx_init_cmd_io(chip);
 847
 848         /* program the position buffer */
 849         azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
 850         azx_writel(chip, DPUBASE, upper_32bit(chip->posbuf.addr));
 851
 852         chip->initialized = 1;
 853 }
 854
 855 /*
 856  * initialize the PCI registers
 857  */
 858 /* update bits in a PCI register byte */
 859 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
 860                             unsigned char mask, unsigned char val)
 861 {
 862         unsigned char data;
 863
 864         pci_read_config_byte(pci, reg, &data);
 865         data &= ~mask;
 866         data |= (val & mask);
 867         pci_write_config_byte(pci, reg, data);
 868 }
 869
 870 static void azx_init_pci(struct azx *chip)
 871 {
 872         unsigned short snoop;
 873
 874         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
 875          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
 876          * Ensuring these bits are 0 clears playback static on some HD Audio
 877          * codecs
 878          */
 879         update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
 880
 881         switch (chip->driver_type) {
 882         case AZX_DRIVER_ATI:
 883                 /* For ATI SB450 azalia HD audio, we need to enable snoop */
 884                 update_pci_byte(chip->pci,
 885                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR,
 886                                 0x07, ATI_SB450_HDAUDIO_ENABLE_SNOOP);
 887                 break;
 888         case AZX_DRIVER_NVIDIA:
 889                 /* For NVIDIA HDA, enable snoop */
 890                 update_pci_byte(chip->pci,
 891                                 NVIDIA_HDA_TRANSREG_ADDR,
 892                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
 893                 break;
 894         case AZX_DRIVER_SCH:
 895                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
 896                 if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
 897                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, \
 898                                 snoop & (~INTEL_SCH_HDA_DEVC_NOSNOOP));
 899                         pci_read_config_word(chip->pci,
 900                                 INTEL_SCH_HDA_DEVC, &snoop);
 901                         snd_printdd("HDA snoop disabled, enabling ... %s\n",\
 902                                 (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) \
 903                                 ? "Failed" : "OK");
 904                 }
 905                 break;
 906
 907         }
 908 }
 909
 910
 911 /*
 912  * interrupt handler
 913  */
 914 static irqreturn_t azx_interrupt(int irq, void *dev_id)
 915 {
 916         struct azx *chip = dev_id;
 917         struct azx_dev *azx_dev;
 918         u32 status;
 919         int i;
 920
 921         spin_lock(&chip->reg_lock);
 922
 923         status = azx_readl(chip, INTSTS);
 924         if (status == 0) {
 925                 spin_unlock(&chip->reg_lock);
 926                 return IRQ_NONE;
 927         }
 928
 929         for (i = 0; i < chip->num_streams; i++) {
 930                 azx_dev = &chip->azx_dev[i];
 931                 if (status & azx_dev->sd_int_sta_mask) {
 932                         azx_sd_writeb(azx_dev, SD_STS, SD_INT_MASK);
 933                         if (azx_dev->substream && azx_dev->running) {
 934                                 azx_dev->period_intr++;
 935                                 spin_unlock(&chip->reg_lock);
 936                                 snd_pcm_period_elapsed(azx_dev->substream);
 937                                 spin_lock(&chip->reg_lock);
 938                         }
 939                 }
 940         }
 941
 942         /* clear rirb int */
 943         status = azx_readb(chip, RIRBSTS);
 944         if (status & RIRB_INT_MASK) {
 945                 if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
 946                         azx_update_rirb(chip);
 947                 azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
 948         }
 949
 950 #if 0
 951         /* clear state status int */
 952         if (azx_readb(chip, STATESTS) & 0x04)
 953                 azx_writeb(chip, STATESTS, 0x04);
 954 #endif
 955         spin_unlock(&chip->reg_lock);
 956
 957         return IRQ_HANDLED;
 958 }
 959
 960
 961 /*
 962  * set up BDL entries
 963  */
 964 static int azx_setup_periods(struct snd_pcm_substream *substream,
 965                              struct azx_dev *azx_dev)
 966 {
 967         struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
 968         u32 *bdl;
 969         int i, ofs, periods, period_bytes;
 970
 971         /* reset BDL address */
 972         azx_sd_writel(azx_dev, SD_BDLPL, 0);
 973         azx_sd_writel(azx_dev, SD_BDLPU, 0);
 974
 975         period_bytes = snd_pcm_lib_period_bytes(substream);
 976         periods = azx_dev->bufsize / period_bytes;
 977
 978         /* program the initial BDL entries */
 979         bdl = (u32 *)azx_dev->bdl.area;
 980         ofs = 0;
 981         azx_dev->frags = 0;
 982         for (i = 0; i < periods; i++) {
 983                 int size, rest;
 984                 if (i >= AZX_MAX_BDL_ENTRIES) {
 985                         snd_printk(KERN_ERR "Too many BDL entries: "
 986                                    "buffer=%d, period=%d\n",
 987                                    azx_dev->bufsize, period_bytes);
 988                         /* reset */
 989                         azx_sd_writel(azx_dev, SD_BDLPL, 0);
 990                         azx_sd_writel(azx_dev, SD_BDLPU, 0);
 991                         return -EINVAL;
 992                 }
 993                 rest = period_bytes;
 994                 do {
 995                         dma_addr_t addr = snd_pcm_sgbuf_get_addr(sgbuf, ofs);
 996                         /* program the address field of the BDL entry */
 997                         bdl[0] = cpu_to_le32((u32)addr);
 998                         bdl[1] = cpu_to_le32(upper_32bit(addr));
 999                         /* program the size field of the BDL entry */
1000                         size = PAGE_SIZE - (ofs % PAGE_SIZE);
1001                         if (rest < size)
1002                                 size = rest;
1003                         bdl[2] = cpu_to_le32(size);
1004                         /* program the IOC to enable interrupt
1005                          * only when the whole fragment is processed
1006                          */
1007                         rest -= size;
1008                         bdl[3] = rest ? 0 : cpu_to_le32(0x01);
1009                         bdl += 4;
1010                         azx_dev->frags++;
1011                         ofs += size;
1012                 } while (rest > 0);
1013         }
1014         return 0;
1015 }
1016
1017 /*
1018  * set up the SD for streaming
1019  */
1020 static int azx_setup_controller(struct azx *chip, struct azx_dev *azx_dev)
1021 {
1022         unsigned char val;
1023         int timeout;
1024
1025         /* make sure the run bit is zero for SD */
1026         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) &
1027                       ~SD_CTL_DMA_START);
1028         /* reset stream */
1029         azx_sd_writeb(azx_dev, SD_CTL, azx_sd_readb(azx_dev, SD_CTL) |
1030                       SD_CTL_STREAM_RESET);
1031         udelay(3);
1032         timeout = 300;
1033         while (!((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1034                --timeout)
1035                 ;
1036         val &= ~SD_CTL_STREAM_RESET;
1037         azx_sd_writeb(azx_dev, SD_CTL, val);
1038         udelay(3);
1039
1040         timeout = 300;
1041         /* waiting for hardware to report that the stream is out of reset */
1042         while (((val = azx_sd_readb(azx_dev, SD_CTL)) & SD_CTL_STREAM_RESET) &&
1043                --timeout)
1044                 ;
1045
1046         /* program the stream_tag */
1047         azx_sd_writel(azx_dev, SD_CTL,
1048                       (azx_sd_readl(azx_dev, SD_CTL) & ~SD_CTL_STREAM_TAG_MASK)|
1049                       (azx_dev->stream_tag << SD_CTL_STREAM_TAG_SHIFT));
1050
1051         /* program the length of samples in cyclic buffer */
1052         azx_sd_writel(azx_dev, SD_CBL, azx_dev->bufsize);
1053
1054         /* program the stream format */
1055         /* this value needs to be the same as the one programmed */
1056         azx_sd_writew(azx_dev, SD_FORMAT, azx_dev->format_val);
1057
1058         /* program the stream LVI (last valid index) of the BDL */
1059         azx_sd_writew(azx_dev, SD_LVI, azx_dev->frags - 1);
1060
1061         /* program the BDL address */
1062         /* lower BDL address */
1063         azx_sd_writel(azx_dev, SD_BDLPL, (u32)azx_dev->bdl.addr);
1064         /* upper BDL address */
1065         azx_sd_writel(azx_dev, SD_BDLPU, upper_32bit(azx_dev->bdl.addr));
1066
1067         /* enable the position buffer */
1068         if (chip->position_fix == POS_FIX_POSBUF ||
1069             chip->position_fix == POS_FIX_AUTO) {
1070                 if (!(azx_readl(chip, DPLBASE) & ICH6_DPLBASE_ENABLE))
1071                         azx_writel(chip, DPLBASE,
1072                                 (u32)chip->posbuf.addr | ICH6_DPLBASE_ENABLE);
1073         }
1074
1075         /* set the interrupt enable bits in the descriptor control register */
1076         azx_sd_writel(azx_dev, SD_CTL,
1077                       azx_sd_readl(azx_dev, SD_CTL) | SD_INT_MASK);
1078
1079         return 0;
1080 }
1081
1082
1083 /*
1084  * Codec initialization
1085  */
1086
1087 static unsigned int azx_max_codecs[] __devinitdata = {
1088         [AZX_DRIVER_ICH] = 3,
1089         [AZX_DRIVER_SCH] = 3,
1090         [AZX_DRIVER_ATI] = 4,
1091         [AZX_DRIVER_ATIHDMI] = 4,
1092         [AZX_DRIVER_VIA] = 3,           /* FIXME: correct? */
1093         [AZX_DRIVER_SIS] = 3,           /* FIXME: correct? */
1094         [AZX_DRIVER_ULI] = 3,           /* FIXME: correct? */
1095         [AZX_DRIVER_NVIDIA] = 3,        /* FIXME: correct? */
1096 };
1097
1098 static int __devinit azx_codec_create(struct azx *chip, const char *model,
1099                                       unsigned int codec_probe_mask)
1100 {
1101         struct hda_bus_template bus_temp;
1102         int c, codecs, audio_codecs, err;
1103
1104         memset(&bus_temp, 0, sizeof(bus_temp));
1105         bus_temp.private_data = chip;
1106         bus_temp.modelname = model;
1107         bus_temp.pci = chip->pci;
1108         bus_temp.ops.command = azx_send_cmd;
1109         bus_temp.ops.get_response = azx_get_response;
1110 #ifdef CONFIG_SND_HDA_POWER_SAVE
1111         bus_temp.ops.pm_notify = azx_power_notify;
1112 #endif
1113
1114         err = snd_hda_bus_new(chip->card, &bus_temp, &chip->bus);
1115         if (err < 0)
1116                 return err;
1117
1118         codecs = audio_codecs = 0;
1119         for (c = 0; c < AZX_MAX_CODECS; c++) {
1120                 if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1121                         struct hda_codec *codec;
1122                         err = snd_hda_codec_new(chip->bus, c, &codec);
1123                         if (err < 0)
1124                                 continue;
1125                         codecs++;
1126                         if (codec->afg)
1127                                 audio_codecs++;
1128                 }
1129         }
1130         if (!audio_codecs) {
1131                 /* probe additional slots if no codec is found */
1132                 for (; c < azx_max_codecs[chip->driver_type]; c++) {
1133                         if ((chip->codec_mask & (1 << c)) & codec_probe_mask) {
1134                                 err = snd_hda_codec_new(chip->bus, c, NULL);
1135                                 if (err < 0)
1136                                         continue;
1137                                 codecs++;
1138                         }
1139                 }
1140         }
1141         if (!codecs) {
1142                 snd_printk(KERN_ERR SFX "no codecs initialized\n");
1143                 return -ENXIO;
1144         }
1145
1146         return 0;
1147 }
1148
1149
1150 /*
1151  * PCM support
1152  */
1153
1154 /* assign a stream for the PCM */
1155 static inline struct azx_dev *azx_assign_device(struct azx *chip, int stream)
1156 {
1157         int dev, i, nums;
1158         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
1159                 dev = chip->playback_index_offset;
1160                 nums = chip->playback_streams;
1161         } else {
1162                 dev = chip->capture_index_offset;
1163                 nums = chip->capture_streams;
1164         }
1165         for (i = 0; i < nums; i++, dev++)
1166                 if (!chip->azx_dev[dev].opened) {
1167                         chip->azx_dev[dev].opened = 1;
1168                         return &chip->azx_dev[dev];
1169                 }
1170         return NULL;
1171 }
1172
1173 /* release the assigned stream */
1174 static inline void azx_release_device(struct azx_dev *azx_dev)
1175 {
1176         azx_dev->opened = 0;
1177 }
1178
1179 static struct snd_pcm_hardware azx_pcm_hw = {
1180         .info =                 (SNDRV_PCM_INFO_MMAP |
1181                                  SNDRV_PCM_INFO_INTERLEAVED |
1182                                  SNDRV_PCM_INFO_BLOCK_TRANSFER |
1183                                  SNDRV_PCM_INFO_MMAP_VALID |
1184                                  /* No full-resume yet implemented */
1185                                  /* SNDRV_PCM_INFO_RESUME |*/
1186                                  SNDRV_PCM_INFO_PAUSE |
1187                                  SNDRV_PCM_INFO_SYNC_START),
1188         .formats =              SNDRV_PCM_FMTBIT_S16_LE,
1189         .rates =                SNDRV_PCM_RATE_48000,
1190         .rate_min =             48000,
1191         .rate_max =             48000,
1192         .channels_min =         2,
1193         .channels_max =         2,
1194         .buffer_bytes_max =     AZX_MAX_BUF_SIZE,
1195         .period_bytes_min =     128,
1196         .period_bytes_max =     AZX_MAX_BUF_SIZE / 2,
1197         .periods_min =          2,
1198         .periods_max =          AZX_MAX_FRAG,
1199         .fifo_size =            0,
1200 };
1201
1202 struct azx_pcm {
1203         struct azx *chip;
1204         struct hda_codec *codec;
1205         struct hda_pcm_stream *hinfo[2];
1206 };
1207
1208 static int azx_pcm_open(struct snd_pcm_substream *substream)
1209 {
1210         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1211         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1212         struct azx *chip = apcm->chip;
1213         struct azx_dev *azx_dev;
1214         struct snd_pcm_runtime *runtime = substream->runtime;
1215         unsigned long flags;
1216         int err;
1217
1218         mutex_lock(&chip->open_mutex);
1219         azx_dev = azx_assign_device(chip, substream->stream);
1220         if (azx_dev == NULL) {
1221                 mutex_unlock(&chip->open_mutex);
1222                 return -EBUSY;
1223         }
1224         runtime->hw = azx_pcm_hw;
1225         runtime->hw.channels_min = hinfo->channels_min;
1226         runtime->hw.channels_max = hinfo->channels_max;
1227         runtime->hw.formats = hinfo->formats;
1228         runtime->hw.rates = hinfo->rates;
1229         snd_pcm_limit_hw_rates(runtime);
1230         snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
1231         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1232                                    128);
1233         snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1234                                    128);
1235         snd_hda_power_up(apcm->codec);
1236         err = hinfo->ops.open(hinfo, apcm->codec, substream);
1237         if (err < 0) {
1238                 azx_release_device(azx_dev);
1239                 snd_hda_power_down(apcm->codec);
1240                 mutex_unlock(&chip->open_mutex);
1241                 return err;
1242         }
1243         spin_lock_irqsave(&chip->reg_lock, flags);
1244         azx_dev->substream = substream;
1245         azx_dev->running = 0;
1246         spin_unlock_irqrestore(&chip->reg_lock, flags);
1247
1248         runtime->private_data = azx_dev;
1249         snd_pcm_set_sync(substream);
1250         mutex_unlock(&chip->open_mutex);
1251         return 0;
1252 }
1253
1254 static int azx_pcm_close(struct snd_pcm_substream *substream)
1255 {
1256         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1257         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1258         struct azx *chip = apcm->chip;
1259         struct azx_dev *azx_dev = get_azx_dev(substream);
1260         unsigned long flags;
1261
1262         mutex_lock(&chip->open_mutex);
1263         spin_lock_irqsave(&chip->reg_lock, flags);
1264         azx_dev->substream = NULL;
1265         azx_dev->running = 0;
1266         spin_unlock_irqrestore(&chip->reg_lock, flags);
1267         azx_release_device(azx_dev);
1268         hinfo->ops.close(hinfo, apcm->codec, substream);
1269         snd_hda_power_down(apcm->codec);
1270         mutex_unlock(&chip->open_mutex);
1271         return 0;
1272 }
1273
1274 static int azx_pcm_hw_params(struct snd_pcm_substream *substream,
1275                              struct snd_pcm_hw_params *hw_params)
1276 {
1277         return snd_pcm_lib_malloc_pages(substream,
1278                                         params_buffer_bytes(hw_params));
1279 }
1280
1281 static int azx_pcm_hw_free(struct snd_pcm_substream *substream)
1282 {
1283         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1284         struct azx_dev *azx_dev = get_azx_dev(substream);
1285         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1286
1287         /* reset BDL address */
1288         azx_sd_writel(azx_dev, SD_BDLPL, 0);
1289         azx_sd_writel(azx_dev, SD_BDLPU, 0);
1290         azx_sd_writel(azx_dev, SD_CTL, 0);
1291
1292         hinfo->ops.cleanup(hinfo, apcm->codec, substream);
1293
1294         return snd_pcm_lib_free_pages(substream);
1295 }
1296
1297 static int azx_pcm_prepare(struct snd_pcm_substream *substream)
1298 {
1299         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1300         struct azx *chip = apcm->chip;
1301         struct azx_dev *azx_dev = get_azx_dev(substream);
1302         struct hda_pcm_stream *hinfo = apcm->hinfo[substream->stream];
1303         struct snd_pcm_runtime *runtime = substream->runtime;
1304
1305         azx_dev->bufsize = snd_pcm_lib_buffer_bytes(substream);
1306         azx_dev->format_val = snd_hda_calc_stream_format(runtime->rate,
1307                                                          runtime->channels,
1308                                                          runtime->format,
1309                                                          hinfo->maxbps);
1310         if (!azx_dev->format_val) {
1311                 snd_printk(KERN_ERR SFX
1312                            "invalid format_val, rate=%d, ch=%d, format=%d\n",
1313                            runtime->rate, runtime->channels, runtime->format);
1314                 return -EINVAL;
1315         }
1316
1317         snd_printdd("azx_pcm_prepare: bufsize=0x%x, format=0x%x\n",
1318                     azx_dev->bufsize, azx_dev->format_val);
1319         if (azx_setup_periods(substream, azx_dev) < 0)
1320                 return -EINVAL;
1321         azx_setup_controller(chip, azx_dev);
1322         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1323                 azx_dev->fifo_size = azx_sd_readw(azx_dev, SD_FIFOSIZE) + 1;
1324         else
1325                 azx_dev->fifo_size = 0;
1326
1327         return hinfo->ops.prepare(hinfo, apcm->codec, azx_dev->stream_tag,
1328                                   azx_dev->format_val, substream);
1329 }
1330
1331 static int azx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
1332 {
1333         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1334         struct azx *chip = apcm->chip;
1335         struct azx_dev *azx_dev;
1336         struct snd_pcm_substream *s;
1337         int start, nsync = 0, sbits = 0;
1338         int nwait, timeout;
1339
1340         switch (cmd) {
1341         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1342         case SNDRV_PCM_TRIGGER_RESUME:
1343         case SNDRV_PCM_TRIGGER_START:
1344                 start = 1;
1345                 break;
1346         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1347         case SNDRV_PCM_TRIGGER_SUSPEND:
1348         case SNDRV_PCM_TRIGGER_STOP:
1349                 start = 0;
1350                 break;
1351         default:
1352                 return -EINVAL;
1353         }
1354
1355         snd_pcm_group_for_each_entry(s, substream) {
1356                 if (s->pcm->card != substream->pcm->card)
1357                         continue;
1358                 azx_dev = get_azx_dev(s);
1359                 sbits |= 1 << azx_dev->index;
1360                 nsync++;
1361                 snd_pcm_trigger_done(s, substream);
1362         }
1363
1364         spin_lock(&chip->reg_lock);
1365         if (nsync > 1) {
1366                 /* first, set SYNC bits of corresponding streams */
1367                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) | sbits);
1368         }
1369         snd_pcm_group_for_each_entry(s, substream) {
1370                 if (s->pcm->card != substream->pcm->card)
1371                         continue;
1372                 azx_dev = get_azx_dev(s);
1373                 if (start)
1374                         azx_stream_start(chip, azx_dev);
1375                 else
1376                         azx_stream_stop(chip, azx_dev);
1377                 azx_dev->running = start;
1378         }
1379         spin_unlock(&chip->reg_lock);
1380         if (start) {
1381                 if (nsync == 1)
1382                         return 0;
1383                 /* wait until all FIFOs get ready */
1384                 for (timeout = 5000; timeout; timeout--) {
1385                         nwait = 0;
1386                         snd_pcm_group_for_each_entry(s, substream) {
1387                                 if (s->pcm->card != substream->pcm->card)
1388                                         continue;
1389                                 azx_dev = get_azx_dev(s);
1390                                 if (!(azx_sd_readb(azx_dev, SD_STS) &
1391                                       SD_STS_FIFO_READY))
1392                                         nwait++;
1393                         }
1394                         if (!nwait)
1395                                 break;
1396                         cpu_relax();
1397                 }
1398         } else {
1399                 /* wait until all RUN bits are cleared */
1400                 for (timeout = 5000; timeout; timeout--) {
1401                         nwait = 0;
1402                         snd_pcm_group_for_each_entry(s, substream) {
1403                                 if (s->pcm->card != substream->pcm->card)
1404                                         continue;
1405                                 azx_dev = get_azx_dev(s);
1406                                 if (azx_sd_readb(azx_dev, SD_CTL) &
1407                                     SD_CTL_DMA_START)
1408                                         nwait++;
1409                         }
1410                         if (!nwait)
1411                                 break;
1412                         cpu_relax();
1413                 }
1414         }
1415         if (nsync > 1) {
1416                 spin_lock(&chip->reg_lock);
1417                 /* reset SYNC bits */
1418                 azx_writel(chip, SYNC, azx_readl(chip, SYNC) & ~sbits);
1419                 spin_unlock(&chip->reg_lock);
1420         }
1421         return 0;
1422 }
1423
1424 static snd_pcm_uframes_t azx_pcm_pointer(struct snd_pcm_substream *substream)
1425 {
1426         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1427         struct azx *chip = apcm->chip;
1428         struct azx_dev *azx_dev = get_azx_dev(substream);
1429         unsigned int pos;
1430
1431         if (chip->position_fix == POS_FIX_POSBUF ||
1432             chip->position_fix == POS_FIX_AUTO) {
1433                 /* use the position buffer */
1434                 pos = le32_to_cpu(*azx_dev->posbuf);
1435                 if (chip->position_fix == POS_FIX_AUTO &&
1436                     azx_dev->period_intr == 1 && !pos) {
1437                         printk(KERN_WARNING
1438                                "hda-intel: Invalid position buffer, "
1439                                "using LPIB read method instead.\n");
1440                         chip->position_fix = POS_FIX_NONE;
1441                         goto read_lpib;
1442                 }
1443         } else {
1444         read_lpib:
1445                 /* read LPIB */
1446                 pos = azx_sd_readl(azx_dev, SD_LPIB);
1447                 if (chip->position_fix == POS_FIX_FIFO)
1448                         pos += azx_dev->fifo_size;
1449         }
1450         if (pos >= azx_dev->bufsize)
1451                 pos = 0;
1452         return bytes_to_frames(substream->runtime, pos);
1453 }
1454
1455 static struct snd_pcm_ops azx_pcm_ops = {
1456         .open = azx_pcm_open,
1457         .close = azx_pcm_close,
1458         .ioctl = snd_pcm_lib_ioctl,
1459         .hw_params = azx_pcm_hw_params,
1460         .hw_free = azx_pcm_hw_free,
1461         .prepare = azx_pcm_prepare,
1462         .trigger = azx_pcm_trigger,
1463         .pointer = azx_pcm_pointer,
1464         .page = snd_pcm_sgbuf_ops_page,
1465 };
1466
1467 static void azx_pcm_free(struct snd_pcm *pcm)
1468 {
1469         kfree(pcm->private_data);
1470 }
1471
1472 static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec,
1473                                       struct hda_pcm *cpcm)
1474 {
1475         int err;
1476         struct snd_pcm *pcm;
1477         struct azx_pcm *apcm;
1478
1479         /* if no substreams are defined for both playback and capture,
1480          * it's just a placeholder.  ignore it.
1481          */
1482         if (!cpcm->stream[0].substreams && !cpcm->stream[1].substreams)
1483                 return 0;
1484
1485         snd_assert(cpcm->name, return -EINVAL);
1486
1487         err = snd_pcm_new(chip->card, cpcm->name, cpcm->device,
1488                           cpcm->stream[0].substreams,
1489                           cpcm->stream[1].substreams,
1490                           &pcm);
1491         if (err < 0)
1492                 return err;
1493         strcpy(pcm->name, cpcm->name);
1494         apcm = kmalloc(sizeof(*apcm), GFP_KERNEL);
1495         if (apcm == NULL)
1496                 return -ENOMEM;
1497         apcm->chip = chip;
1498         apcm->codec = codec;
1499         apcm->hinfo[0] = &cpcm->stream[0];
1500         apcm->hinfo[1] = &cpcm->stream[1];
1501         pcm->private_data = apcm;
1502         pcm->private_free = azx_pcm_free;
1503         if (cpcm->stream[0].substreams)
1504                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &azx_pcm_ops);
1505         if (cpcm->stream[1].substreams)
1506                 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops);
1507         snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1508                                               snd_dma_pci_data(chip->pci),
1509                                               1024 * 64, 1024 * 1024);
1510         chip->pcm[cpcm->device] = pcm;
1511         return 0;
1512 }
1513
1514 static int __devinit azx_pcm_create(struct azx *chip)
1515 {
1516         static const char *dev_name[HDA_PCM_NTYPES] = {
1517                 "Audio", "SPDIF", "HDMI", "Modem"
1518         };
1519         /* starting device index for each PCM type */
1520         static int dev_idx[HDA_PCM_NTYPES] = {
1521                 [HDA_PCM_TYPE_AUDIO] = 0,
1522                 [HDA_PCM_TYPE_SPDIF] = 1,
1523                 [HDA_PCM_TYPE_HDMI] = 3,
1524                 [HDA_PCM_TYPE_MODEM] = 6
1525         };
1526         /* normal audio device indices; not linear to keep compatibility */
1527         static int audio_idx[4] = { 0, 2, 4, 5 };
1528         struct hda_codec *codec;
1529         int c, err;
1530         int num_devs[HDA_PCM_NTYPES];
1531
1532         err = snd_hda_build_pcms(chip->bus);
1533         if (err < 0)
1534                 return err;
1535
1536         /* create audio PCMs */
1537         memset(num_devs, 0, sizeof(num_devs));
1538         list_for_each_entry(codec, &chip->bus->codec_list, list) {
1539                 for (c = 0; c < codec->num_pcms; c++) {
1540                         struct hda_pcm *cpcm = &codec->pcm_info[c];
1541                         int type = cpcm->pcm_type;
1542                         switch (type) {
1543                         case HDA_PCM_TYPE_AUDIO:
1544                                 if (num_devs[type] >= ARRAY_SIZE(audio_idx)) {
1545                                         snd_printk(KERN_WARNING
1546                                                    "Too many audio devices\n");
1547                                         continue;
1548                                 }
1549                                 cpcm->device = audio_idx[num_devs[type]];
1550                                 break;
1551                         case HDA_PCM_TYPE_SPDIF:
1552                         case HDA_PCM_TYPE_HDMI:
1553                         case HDA_PCM_TYPE_MODEM:
1554                                 if (num_devs[type]) {
1555                                         snd_printk(KERN_WARNING
1556                                                    "%s already defined\n",
1557                                                    dev_name[type]);
1558                                         continue;
1559                                 }
1560                                 cpcm->device = dev_idx[type];
1561                                 break;
1562                         default:
1563                                 snd_printk(KERN_WARNING
1564                                            "Invalid PCM type %d\n", type);
1565                                 continue;
1566                         }
1567                         num_devs[type]++;
1568                         err = create_codec_pcm(chip, codec, cpcm);
1569                         if (err < 0)
1570                                 return err;
1571                 }
1572         }
1573         return 0;
1574 }
1575
1576 /*
1577  * mixer creation - all stuff is implemented in hda module
1578  */
1579 static int __devinit azx_mixer_create(struct azx *chip)
1580 {
1581         return snd_hda_build_controls(chip->bus);
1582 }
1583
1584
1585 /*
1586  * initialize SD streams
1587  */
1588 static int __devinit azx_init_stream(struct azx *chip)
1589 {
1590         int i;
1591
1592         /* initialize each stream (aka device)
1593          * assign the starting bdl address to each stream (device)
1594          * and initialize
1595          */
1596         for (i = 0; i < chip->num_streams; i++) {
1597                 struct azx_dev *azx_dev = &chip->azx_dev[i];
1598                 azx_dev->posbuf = (u32 __iomem *)(chip->posbuf.area + i * 8);
1599                 /* offset: SDI0=0x80, SDI1=0xa0, ... SDO3=0x160 */
1600                 azx_dev->sd_addr = chip->remap_addr + (0x20 * i + 0x80);
1601                 /* int mask: SDI0=0x01, SDI1=0x02, ... SDO3=0x80 */
1602                 azx_dev->sd_int_sta_mask = 1 << i;
1603                 /* stream tag: must be non-zero and unique */
1604                 azx_dev->index = i;
1605                 azx_dev->stream_tag = i + 1;
1606         }
1607
1608         return 0;
1609 }
1610
1611 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
1612 {
1613         if (request_irq(chip->pci->irq, azx_interrupt,
1614                         chip->msi ? 0 : IRQF_SHARED,
1615                         "HDA Intel", chip)) {
1616                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
1617                        "disabling device\n", chip->pci->irq);
1618                 if (do_disconnect)
1619                         snd_card_disconnect(chip->card);
1620                 return -1;
1621         }
1622         chip->irq = chip->pci->irq;
1623         pci_intx(chip->pci, !chip->msi);
1624         return 0;
1625 }
1626
1627
1628 static void azx_stop_chip(struct azx *chip)
1629 {
1630         if (!chip->initialized)
1631                 return;
1632
1633         /* disable interrupts */
1634         azx_int_disable(chip);
1635         azx_int_clear(chip);
1636
1637         /* disable CORB/RIRB */
1638         azx_free_cmd_io(chip);
1639
1640         /* disable position buffer */
1641         azx_writel(chip, DPLBASE, 0);
1642         azx_writel(chip, DPUBASE, 0);
1643
1644         chip->initialized = 0;
1645 }
1646
1647 #ifdef CONFIG_SND_HDA_POWER_SAVE
1648 /* power-up/down the controller */
1649 static void azx_power_notify(struct hda_codec *codec)
1650 {
1651         struct azx *chip = codec->bus->private_data;
1652         struct hda_codec *c;
1653         int power_on = 0;
1654
1655         list_for_each_entry(c, &codec->bus->codec_list, list) {
1656                 if (c->power_on) {
1657                         power_on = 1;
1658                         break;
1659                 }
1660         }
1661         if (power_on)
1662                 azx_init_chip(chip);
1663         else if (chip->running && power_save_controller)
1664                 azx_stop_chip(chip);
1665 }
1666 #endif /* CONFIG_SND_HDA_POWER_SAVE */
1667
1668 #ifdef CONFIG_PM
1669 /*
1670  * power management
1671  */
1672 static int azx_suspend(struct pci_dev *pci, pm_message_t state)
1673 {
1674         struct snd_card *card = pci_get_drvdata(pci);
1675         struct azx *chip = card->private_data;
1676         int i;
1677
1678         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1679         for (i = 0; i < AZX_MAX_PCMS; i++)
1680                 snd_pcm_suspend_all(chip->pcm[i]);
1681         if (chip->initialized)
1682                 snd_hda_suspend(chip->bus, state);
1683         azx_stop_chip(chip);
1684         if (chip->irq >= 0) {
1685                 free_irq(chip->irq, chip);
1686                 chip->irq = -1;
1687         }
1688         if (chip->msi)
1689                 pci_disable_msi(chip->pci);
1690         pci_disable_device(pci);
1691         pci_save_state(pci);
1692         pci_set_power_state(pci, pci_choose_state(pci, state));
1693         return 0;
1694 }
1695
1696 static int azx_resume(struct pci_dev *pci)
1697 {
1698         struct snd_card *card = pci_get_drvdata(pci);
1699         struct azx *chip = card->private_data;
1700
1701         pci_set_power_state(pci, PCI_D0);
1702         pci_restore_state(pci);
1703         if (pci_enable_device(pci) < 0) {
1704                 printk(KERN_ERR "hda-intel: pci_enable_device failed, "
1705                        "disabling device\n");
1706                 snd_card_disconnect(card);
1707                 return -EIO;
1708         }
1709         pci_set_master(pci);
1710         if (chip->msi)
1711                 if (pci_enable_msi(pci) < 0)
1712                         chip->msi = 0;
1713         if (azx_acquire_irq(chip, 1) < 0)
1714                 return -EIO;
1715         azx_init_pci(chip);
1716
1717         if (snd_hda_codecs_inuse(chip->bus))
1718                 azx_init_chip(chip);
1719
1720         snd_hda_resume(chip->bus);
1721         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1722         return 0;
1723 }
1724 #endif /* CONFIG_PM */
1725
1726
1727 /*
1728  * destructor
1729  */
1730 static int azx_free(struct azx *chip)
1731 {
1732         int i;
1733
1734         if (chip->initialized) {
1735                 for (i = 0; i < chip->num_streams; i++)
1736                         azx_stream_stop(chip, &chip->azx_dev[i]);
1737                 azx_stop_chip(chip);
1738         }
1739
1740         if (chip->irq >= 0)
1741                 free_irq(chip->irq, (void*)chip);
1742         if (chip->msi)
1743                 pci_disable_msi(chip->pci);
1744         if (chip->remap_addr)
1745                 iounmap(chip->remap_addr);
1746
1747         if (chip->azx_dev) {
1748                 for (i = 0; i < chip->num_streams; i++)
1749                         if (chip->azx_dev[i].bdl.area)
1750                                 snd_dma_free_pages(&chip->azx_dev[i].bdl);
1751         }
1752         if (chip->rb.area)
1753                 snd_dma_free_pages(&chip->rb);
1754         if (chip->posbuf.area)
1755                 snd_dma_free_pages(&chip->posbuf);
1756         pci_release_regions(chip->pci);
1757         pci_disable_device(chip->pci);
1758         kfree(chip->azx_dev);
1759         kfree(chip);
1760
1761         return 0;
1762 }
1763
1764 static int azx_dev_free(struct snd_device *device)
1765 {
1766         return azx_free(device->device_data);
1767 }
1768
1769 /*
1770  * white/black-listing for position_fix
1771  */
1772 static struct snd_pci_quirk position_fix_list[] __devinitdata = {
1773         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_NONE),
1774         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_NONE),
1775         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_NONE),
1776         {}
1777 };
1778
1779 static int __devinit check_position_fix(struct azx *chip, int fix)
1780 {
1781         const struct snd_pci_quirk *q;
1782
1783         if (fix == POS_FIX_AUTO) {
1784                 q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1785                 if (q) {
1786                         printk(KERN_INFO
1787                                     "hda_intel: position_fix set to %d "
1788                                     "for device %04x:%04x\n",
1789                                     q->value, q->subvendor, q->subdevice);
1790                         return q->value;
1791                 }
1792         }
1793         return fix;
1794 }
1795
1796 /*
1797  * black-lists for probe_mask
1798  */
1799 static struct snd_pci_quirk probe_mask_list[] __devinitdata = {
1800         /* Thinkpad often breaks the controller communication when accessing
1801          * to the non-working (or non-existing) modem codec slot.
1802          */
1803         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1804         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1805         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1806         {}
1807 };
1808
1809 static void __devinit check_probe_mask(struct azx *chip, int dev)
1810 {
1811         const struct snd_pci_quirk *q;
1812
1813         if (probe_mask[dev] == -1) {
1814                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1815                 if (q) {
1816                         printk(KERN_INFO
1817                                "hda_intel: probe_mask set to 0x%x "
1818                                "for device %04x:%04x\n",
1819                                q->value, q->subvendor, q->subdevice);
1820                         probe_mask[dev] = q->value;
1821                 }
1822         }
1823 }
1824
1825
1826 /*
1827  * constructor
1828  */
1829 static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
1830                                 int dev, int driver_type,
1831                                 struct azx **rchip)
1832 {
1833         struct azx *chip;
1834         int i, err;
1835         unsigned short gcap;
1836         static struct snd_device_ops ops = {
1837                 .dev_free = azx_dev_free,
1838         };
1839
1840         *rchip = NULL;
1841
1842         err = pci_enable_device(pci);
1843         if (err < 0)
1844                 return err;
1845
1846         chip = kzalloc(sizeof(*chip), GFP_KERNEL);
1847         if (!chip) {
1848                 snd_printk(KERN_ERR SFX "cannot allocate chip\n");
1849                 pci_disable_device(pci);
1850                 return -ENOMEM;
1851         }
1852
1853         spin_lock_init(&chip->reg_lock);
1854         mutex_init(&chip->open_mutex);
1855         chip->card = card;
1856         chip->pci = pci;
1857         chip->irq = -1;
1858         chip->driver_type = driver_type;
1859         chip->msi = enable_msi;
1860
1861         chip->position_fix = check_position_fix(chip, position_fix[dev]);
1862         check_probe_mask(chip, dev);
1863
1864         chip->single_cmd = single_cmd;
1865
1866 #if BITS_PER_LONG != 64
1867         /* Fix up base address on ULI M5461 */
1868         if (chip->driver_type == AZX_DRIVER_ULI) {
1869                 u16 tmp3;
1870                 pci_read_config_word(pci, 0x40, &tmp3);
1871                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1872                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1873         }
1874 #endif
1875
1876         err = pci_request_regions(pci, "ICH HD audio");
1877         if (err < 0) {
1878                 kfree(chip);
1879                 pci_disable_device(pci);
1880                 return err;
1881         }
1882
1883         chip->addr = pci_resource_start(pci, 0);
1884         chip->remap_addr = ioremap_nocache(chip->addr, pci_resource_len(pci,0));
1885         if (chip->remap_addr == NULL) {
1886                 snd_printk(KERN_ERR SFX "ioremap error\n");
1887                 err = -ENXIO;
1888                 goto errout;
1889         }
1890
1891         if (chip->msi)
1892                 if (pci_enable_msi(pci) < 0)
1893                         chip->msi = 0;
1894
1895         if (azx_acquire_irq(chip, 0) < 0) {
1896                 err = -EBUSY;
1897                 goto errout;
1898         }
1899
1900         pci_set_master(pci);
1901         synchronize_irq(chip->irq);
1902
1903         gcap = azx_readw(chip, GCAP);
1904         snd_printdd("chipset global capabilities = 0x%x\n", gcap);
1905
1906         /* allow 64bit DMA address if supported by H/W */
1907         if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
1908                 pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
1909
1910         /* read number of streams from GCAP register instead of using
1911          * hardcoded value
1912          */
1913         chip->capture_streams = (gcap >> 8) & 0x0f;
1914         chip->playback_streams = (gcap >> 12) & 0x0f;
1915         if (!chip->playback_streams && !chip->capture_streams) {
1916                 /* gcap didn't give any info, switching to old method */
1917
1918                 switch (chip->driver_type) {
1919                 case AZX_DRIVER_ULI:
1920                         chip->playback_streams = ULI_NUM_PLAYBACK;
1921                         chip->capture_streams = ULI_NUM_CAPTURE;
1922                         break;
1923                 case AZX_DRIVER_ATIHDMI:
1924                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1925                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1926                         break;
1927                 default:
1928                         chip->playback_streams = ICH6_NUM_PLAYBACK;
1929                         chip->capture_streams = ICH6_NUM_CAPTURE;
1930                         break;
1931                 }
1932         }
1933         chip->capture_index_offset = 0;
1934         chip->playback_index_offset = chip->capture_streams;
1935         chip->num_streams = chip->playback_streams + chip->capture_streams;
1936         chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
1937                                 GFP_KERNEL);
1938         if (!chip->azx_dev) {
1939                 snd_printk(KERN_ERR "cannot malloc azx_dev\n");
1940                 goto errout;
1941         }
1942
1943         for (i = 0; i < chip->num_streams; i++) {
1944                 /* allocate memory for the BDL for each stream */
1945                 err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1946                                           snd_dma_pci_data(chip->pci),
1947                                           BDL_SIZE, &chip->azx_dev[i].bdl);
1948                 if (err < 0) {
1949                         snd_printk(KERN_ERR SFX "cannot allocate BDL\n");
1950                         goto errout;
1951                 }
1952         }
1953         /* allocate memory for the position buffer */
1954         err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1955                                   snd_dma_pci_data(chip->pci),
1956                                   chip->num_streams * 8, &chip->posbuf);
1957         if (err < 0) {
1958                 snd_printk(KERN_ERR SFX "cannot allocate posbuf\n");
1959                 goto errout;
1960         }
1961         /* allocate CORB/RIRB */
1962         if (!chip->single_cmd) {
1963                 err = azx_alloc_cmd_io(chip);
1964                 if (err < 0)
1965                         goto errout;
1966         }
1967
1968         /* initialize streams */
1969         azx_init_stream(chip);
1970
1971         /* initialize chip */
1972         azx_init_pci(chip);
1973         azx_init_chip(chip);
1974
1975         /* codec detection */
1976         if (!chip->codec_mask) {
1977                 snd_printk(KERN_ERR SFX "no codecs found!\n");
1978                 err = -ENODEV;
1979                 goto errout;
1980         }
1981
1982         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1983         if (err <0) {
1984                 snd_printk(KERN_ERR SFX "Error creating device [card]!\n");
1985                 goto errout;
1986         }
1987
1988         strcpy(card->driver, "HDA-Intel");
1989         strcpy(card->shortname, driver_short_names[chip->driver_type]);
1990         sprintf(card->longname, "%s at 0x%lx irq %i",
1991                 card->shortname, chip->addr, chip->irq);
1992
1993         *rchip = chip;
1994         return 0;
1995
1996  errout:
1997         azx_free(chip);
1998         return err;
1999 }
2000
2001 static void power_down_all_codecs(struct azx *chip)
2002 {
2003 #ifdef CONFIG_SND_HDA_POWER_SAVE
2004         /* The codecs were powered up in snd_hda_codec_new().
2005          * Now all initialization done, so turn them down if possible
2006          */
2007         struct hda_codec *codec;
2008         list_for_each_entry(codec, &chip->bus->codec_list, list) {
2009                 snd_hda_power_down(codec);
2010         }
2011 #endif
2012 }
2013
2014 static int __devinit azx_probe(struct pci_dev *pci,
2015                                const struct pci_device_id *pci_id)
2016 {
2017         static int dev;
2018         struct snd_card *card;
2019         struct azx *chip;
2020         int err;
2021
2022         if (dev >= SNDRV_CARDS)
2023                 return -ENODEV;
2024         if (!enable[dev]) {
2025                 dev++;
2026                 return -ENOENT;
2027         }
2028
2029         card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2030         if (!card) {
2031                 snd_printk(KERN_ERR SFX "Error creating card!\n");
2032                 return -ENOMEM;
2033         }
2034
2035         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2036         if (err < 0) {
2037                 snd_card_free(card);
2038                 return err;
2039         }
2040         card->private_data = chip;
2041
2042         /* create codec instances */
2043         err = azx_codec_create(chip, model[dev], probe_mask[dev]);
2044         if (err < 0) {
2045                 snd_card_free(card);
2046                 return err;
2047         }
2048
2049         /* create PCM streams */
2050         err = azx_pcm_create(chip);
2051         if (err < 0) {
2052                 snd_card_free(card);
2053                 return err;
2054         }
2055
2056         /* create mixer controls */
2057         err = azx_mixer_create(chip);
2058         if (err < 0) {
2059                 snd_card_free(card);
2060                 return err;
2061         }
2062
2063         snd_card_set_dev(card, &pci->dev);
2064
2065         err = snd_card_register(card);
2066         if (err < 0) {
2067                 snd_card_free(card);
2068                 return err;
2069         }
2070
2071         pci_set_drvdata(pci, card);
2072         chip->running = 1;
2073         power_down_all_codecs(chip);
2074
2075         dev++;
2076         return err;
2077 }
2078
2079 static void __devexit azx_remove(struct pci_dev *pci)
2080 {
2081         snd_card_free(pci_get_drvdata(pci));
2082         pci_set_drvdata(pci, NULL);
2083 }
2084
2085 /* PCI IDs */
2086 static struct pci_device_id azx_ids[] = {
2087         /* ICH 6..10 */
2088         { PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
2089         { PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },
2090         { PCI_DEVICE(0x8086, 0x269a), .driver_data = AZX_DRIVER_ICH },
2091         { PCI_DEVICE(0x8086, 0x284b), .driver_data = AZX_DRIVER_ICH },
2092         { PCI_DEVICE(0x8086, 0x293e), .driver_data = AZX_DRIVER_ICH },
2093         { PCI_DEVICE(0x8086, 0x293f), .driver_data = AZX_DRIVER_ICH },
2094         { PCI_DEVICE(0x8086, 0x3a3e), .driver_data = AZX_DRIVER_ICH },
2095         { PCI_DEVICE(0x8086, 0x3a6e), .driver_data = AZX_DRIVER_ICH },
2096         /* SCH */
2097         { PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
2098         /* ATI SB 450/600 */
2099         { PCI_DEVICE(0x1002, 0x437b), .driver_data = AZX_DRIVER_ATI },
2100         { PCI_DEVICE(0x1002, 0x4383), .driver_data = AZX_DRIVER_ATI },
2101         /* ATI HDMI */
2102         { PCI_DEVICE(0x1002, 0x793b), .driver_data = AZX_DRIVER_ATIHDMI },
2103         { PCI_DEVICE(0x1002, 0x7919), .driver_data = AZX_DRIVER_ATIHDMI },
2104         { PCI_DEVICE(0x1002, 0x960f), .driver_data = AZX_DRIVER_ATIHDMI },
2105         { PCI_DEVICE(0x1002, 0xaa00), .driver_data = AZX_DRIVER_ATIHDMI },
2106         { PCI_DEVICE(0x1002, 0xaa08), .driver_data = AZX_DRIVER_ATIHDMI },
2107         { PCI_DEVICE(0x1002, 0xaa10), .driver_data = AZX_DRIVER_ATIHDMI },
2108         { PCI_DEVICE(0x1002, 0xaa18), .driver_data = AZX_DRIVER_ATIHDMI },
2109         { PCI_DEVICE(0x1002, 0xaa20), .driver_data = AZX_DRIVER_ATIHDMI },
2110         { PCI_DEVICE(0x1002, 0xaa28), .driver_data = AZX_DRIVER_ATIHDMI },
2111         { PCI_DEVICE(0x1002, 0xaa30), .driver_data = AZX_DRIVER_ATIHDMI },
2112         { PCI_DEVICE(0x1002, 0xaa38), .driver_data = AZX_DRIVER_ATIHDMI },
2113         { PCI_DEVICE(0x1002, 0xaa40), .driver_data = AZX_DRIVER_ATIHDMI },
2114         { PCI_DEVICE(0x1002, 0xaa48), .driver_data = AZX_DRIVER_ATIHDMI },
2115         /* VIA VT8251/VT8237A */
2116         { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2117         /* SIS966 */
2118         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2119         /* ULI M5461 */
2120         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2121         /* NVIDIA MCP */
2122         { PCI_DEVICE(0x10de, 0x026c), .driver_data = AZX_DRIVER_NVIDIA },
2123         { PCI_DEVICE(0x10de, 0x0371), .driver_data = AZX_DRIVER_NVIDIA },
2124         { PCI_DEVICE(0x10de, 0x03e4), .driver_data = AZX_DRIVER_NVIDIA },
2125         { PCI_DEVICE(0x10de, 0x03f0), .driver_data = AZX_DRIVER_NVIDIA },
2126         { PCI_DEVICE(0x10de, 0x044a), .driver_data = AZX_DRIVER_NVIDIA },
2127         { PCI_DEVICE(0x10de, 0x044b), .driver_data = AZX_DRIVER_NVIDIA },
2128         { PCI_DEVICE(0x10de, 0x055c), .driver_data = AZX_DRIVER_NVIDIA },
2129         { PCI_DEVICE(0x10de, 0x055d), .driver_data = AZX_DRIVER_NVIDIA },
2130         { PCI_DEVICE(0x10de, 0x0774), .driver_data = AZX_DRIVER_NVIDIA },
2131         { PCI_DEVICE(0x10de, 0x0775), .driver_data = AZX_DRIVER_NVIDIA },
2132         { PCI_DEVICE(0x10de, 0x0776), .driver_data = AZX_DRIVER_NVIDIA },
2133         { PCI_DEVICE(0x10de, 0x0777), .driver_data = AZX_DRIVER_NVIDIA },
2134         { PCI_DEVICE(0x10de, 0x07fc), .driver_data = AZX_DRIVER_NVIDIA },
2135         { PCI_DEVICE(0x10de, 0x07fd), .driver_data = AZX_DRIVER_NVIDIA },
2136         { PCI_DEVICE(0x10de, 0x0ac0), .driver_data = AZX_DRIVER_NVIDIA },
2137         { PCI_DEVICE(0x10de, 0x0ac1), .driver_data = AZX_DRIVER_NVIDIA },
2138         { PCI_DEVICE(0x10de, 0x0ac2), .driver_data = AZX_DRIVER_NVIDIA },
2139         { PCI_DEVICE(0x10de, 0x0ac3), .driver_data = AZX_DRIVER_NVIDIA },
2140         { PCI_DEVICE(0x10de, 0x0bd4), .driver_data = AZX_DRIVER_NVIDIA },
2141         { PCI_DEVICE(0x10de, 0x0bd5), .driver_data = AZX_DRIVER_NVIDIA },
2142         { PCI_DEVICE(0x10de, 0x0bd6), .driver_data = AZX_DRIVER_NVIDIA },
2143         { PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
2144         { 0, }
2145 };
2146 MODULE_DEVICE_TABLE(pci, azx_ids);
2147
2148 /* pci_driver definition */
2149 static struct pci_driver driver = {
2150         .name = "HDA Intel",
2151         .id_table = azx_ids,
2152         .probe = azx_probe,
2153         .remove = __devexit_p(azx_remove),
2154 #ifdef CONFIG_PM
2155         .suspend = azx_suspend,
2156         .resume = azx_resume,
2157 #endif
2158 };
2159
2160 static int __init alsa_card_azx_init(void)
2161 {
2162         return pci_register_driver(&driver);
2163 }
2164
2165 static void __exit alsa_card_azx_exit(void)
2166 {
2167         pci_unregister_driver(&driver);
2168 }
2169
2170 module_init(alsa_card_azx_init)
2171 module_exit(alsa_card_azx_exit)