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 <linux/delay.h>
  38 #include <linux/interrupt.h>
  39 #include <linux/kernel.h>
  40 #include <linux/module.h>
  41 #include <linux/dma-mapping.h>
  42 #include <linux/moduleparam.h>
  43 #include <linux/init.h>
  44 #include <linux/slab.h>
  45 #include <linux/pci.h>
  46 #include <linux/mutex.h>
  47 #include <linux/io.h>
  48 #include <linux/pm_runtime.h>
  49 #include <linux/clocksource.h>
  50 #include <linux/time.h>
  51 #include <linux/completion.h>
  52
  53 #ifdef CONFIG_X86
  54 /* for snoop control */
  55 #include <asm/pgtable.h>
  56 #include <asm/cacheflush.h>
  57 #endif
  58 #include <sound/core.h>
  59 #include <sound/initval.h>
  60 #include <sound/hdaudio.h>
  61 #include <sound/hda_i915.h>
  62 #include <linux/vgaarb.h>
  63 #include <linux/vga_switcheroo.h>
  64 #include <linux/firmware.h>
  65 #include "hda_codec.h"
  66 #include "hda_controller.h"
  67 #include "hda_intel.h"
  68
  69 #define CREATE_TRACE_POINTS
  70 #include "hda_intel_trace.h"
  71
  72 /* position fix mode */
  73 enum {
  74         POS_FIX_AUTO,
  75         POS_FIX_LPIB,
  76         POS_FIX_POSBUF,
  77         POS_FIX_VIACOMBO,
  78         POS_FIX_COMBO,
  79 };
  80
  81 /* Defines for ATI HD Audio support in SB450 south bridge */
  82 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
  83 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
  84
  85 /* Defines for Nvidia HDA support */
  86 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
  87 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
  88 #define NVIDIA_HDA_ISTRM_COH          0x4d
  89 #define NVIDIA_HDA_OSTRM_COH          0x4c
  90 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
  91
  92 /* Defines for Intel SCH HDA snoop control */
  93 #define INTEL_SCH_HDA_DEVC      0x78
  94 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
  95
  96 /* Define IN stream 0 FIFO size offset in VIA controller */
  97 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
  98 /* Define VIA HD Audio Device ID*/
  99 #define VIA_HDAC_DEVICE_ID              0x3288
 100
 101 /* max number of SDs */
 102 /* ICH, ATI and VIA have 4 playback and 4 capture */
 103 #define ICH6_NUM_CAPTURE        4
 104 #define ICH6_NUM_PLAYBACK       4
 105
 106 /* ULI has 6 playback and 5 capture */
 107 #define ULI_NUM_CAPTURE         5
 108 #define ULI_NUM_PLAYBACK        6
 109
 110 /* ATI HDMI may have up to 8 playbacks and 0 capture */
 111 #define ATIHDMI_NUM_CAPTURE     0
 112 #define ATIHDMI_NUM_PLAYBACK    8
 113
 114 /* TERA has 4 playback and 3 capture */
 115 #define TERA_NUM_CAPTURE        3
 116 #define TERA_NUM_PLAYBACK       4
 117
 118
 119 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
 120 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
 121 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
 122 static char *model[SNDRV_CARDS];
 123 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 124 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 125 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
 126 static int probe_only[SNDRV_CARDS];
 127 static int jackpoll_ms[SNDRV_CARDS];
 128 static bool single_cmd;
 129 static int enable_msi = -1;
 130 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 131 static char *patch[SNDRV_CARDS];
 132 #endif
 133 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 134 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
 135                                         CONFIG_SND_HDA_INPUT_BEEP_MODE};
 136 #endif
 137
 138 module_param_array(index, int, NULL, 0444);
 139 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
 140 module_param_array(id, charp, NULL, 0444);
 141 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
 142 module_param_array(enable, bool, NULL, 0444);
 143 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
 144 module_param_array(model, charp, NULL, 0444);
 145 MODULE_PARM_DESC(model, "Use the given board model.");
 146 module_param_array(position_fix, int, NULL, 0444);
 147 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
 148                  "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
 149 module_param_array(bdl_pos_adj, int, NULL, 0644);
 150 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
 151 module_param_array(probe_mask, int, NULL, 0444);
 152 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
 153 module_param_array(probe_only, int, NULL, 0444);
 154 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
 155 module_param_array(jackpoll_ms, int, NULL, 0444);
 156 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
 157 module_param(single_cmd, bool, 0444);
 158 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
 159                  "(for debugging only).");
 160 module_param(enable_msi, bint, 0444);
 161 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
 162 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 163 module_param_array(patch, charp, NULL, 0444);
 164 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
 165 #endif
 166 #ifdef CONFIG_SND_HDA_INPUT_BEEP
 167 module_param_array(beep_mode, bool, NULL, 0444);
 168 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
 169                             "(0=off, 1=on) (default=1).");
 170 #endif
 171
 172 #ifdef CONFIG_PM
 173 static int param_set_xint(const char *val, const struct kernel_param *kp);
 174 static const struct kernel_param_ops param_ops_xint = {
 175         .set = param_set_xint,
 176         .get = param_get_int,
 177 };
 178 #define param_check_xint param_check_int
 179
 180 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
 181 module_param(power_save, xint, 0644);
 182 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
 183                  "(in second, 0 = disable).");
 184
 185 /* reset the HD-audio controller in power save mode.
 186  * this may give more power-saving, but will take longer time to
 187  * wake up.
 188  */
 189 static bool power_save_controller = 1;
 190 module_param(power_save_controller, bool, 0644);
 191 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
 192 #else
 193 #define power_save      0
 194 #endif /* CONFIG_PM */
 195
 196 static int align_buffer_size = -1;
 197 module_param(align_buffer_size, bint, 0644);
 198 MODULE_PARM_DESC(align_buffer_size,
 199                 "Force buffer and period sizes to be multiple of 128 bytes.");
 200
 201 #ifdef CONFIG_X86
 202 static int hda_snoop = -1;
 203 module_param_named(snoop, hda_snoop, bint, 0444);
 204 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
 205 #else
 206 #define hda_snoop               true
 207 #endif
 208
 209
 210 MODULE_LICENSE("GPL");
 211 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
 212                          "{Intel, ICH6M},"
 213                          "{Intel, ICH7},"
 214                          "{Intel, ESB2},"
 215                          "{Intel, ICH8},"
 216                          "{Intel, ICH9},"
 217                          "{Intel, ICH10},"
 218                          "{Intel, PCH},"
 219                          "{Intel, CPT},"
 220                          "{Intel, PPT},"
 221                          "{Intel, LPT},"
 222                          "{Intel, LPT_LP},"
 223                          "{Intel, WPT_LP},"
 224                          "{Intel, SPT},"
 225                          "{Intel, SPT_LP},"
 226                          "{Intel, HPT},"
 227                          "{Intel, PBG},"
 228                          "{Intel, SCH},"
 229                          "{ATI, SB450},"
 230                          "{ATI, SB600},"
 231                          "{ATI, RS600},"
 232                          "{ATI, RS690},"
 233                          "{ATI, RS780},"
 234                          "{ATI, R600},"
 235                          "{ATI, RV630},"
 236                          "{ATI, RV610},"
 237                          "{ATI, RV670},"
 238                          "{ATI, RV635},"
 239                          "{ATI, RV620},"
 240                          "{ATI, RV770},"
 241                          "{VIA, VT8251},"
 242                          "{VIA, VT8237A},"
 243                          "{SiS, SIS966},"
 244                          "{ULI, M5461}}");
 245 MODULE_DESCRIPTION("Intel HDA driver");
 246
 247 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
 248 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
 249 #define SUPPORT_VGA_SWITCHEROO
 250 #endif
 251 #endif
 252
 253
 254 /*
 255  */
 256
 257 /* driver types */
 258 enum {
 259         AZX_DRIVER_ICH,
 260         AZX_DRIVER_PCH,
 261         AZX_DRIVER_SCH,
 262         AZX_DRIVER_HDMI,
 263         AZX_DRIVER_ATI,
 264         AZX_DRIVER_ATIHDMI,
 265         AZX_DRIVER_ATIHDMI_NS,
 266         AZX_DRIVER_VIA,
 267         AZX_DRIVER_SIS,
 268         AZX_DRIVER_ULI,
 269         AZX_DRIVER_NVIDIA,
 270         AZX_DRIVER_TERA,
 271         AZX_DRIVER_CTX,
 272         AZX_DRIVER_CTHDA,
 273         AZX_DRIVER_CMEDIA,
 274         AZX_DRIVER_GENERIC,
 275         AZX_NUM_DRIVERS, /* keep this as last entry */
 276 };
 277
 278 #define azx_get_snoop_type(chip) \
 279         (((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
 280 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
 281
 282 /* quirks for old Intel chipsets */
 283 #define AZX_DCAPS_INTEL_ICH \
 284         (AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
 285
 286 /* quirks for Intel PCH */
 287 #define AZX_DCAPS_INTEL_PCH_NOPM \
 288         (AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
 289          AZX_DCAPS_REVERSE_ASSIGN | AZX_DCAPS_SNOOP_TYPE(SCH))
 290
 291 #define AZX_DCAPS_INTEL_PCH \
 292         (AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
 293
 294 #define AZX_DCAPS_INTEL_HASWELL \
 295         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
 296          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
 297          AZX_DCAPS_SNOOP_TYPE(SCH))
 298
 299 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
 300 #define AZX_DCAPS_INTEL_BROADWELL \
 301         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
 302          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
 303          AZX_DCAPS_SNOOP_TYPE(SCH))
 304
 305 #define AZX_DCAPS_INTEL_BAYTRAIL \
 306         (AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_I915_POWERWELL)
 307
 308 #define AZX_DCAPS_INTEL_BRASWELL \
 309         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
 310
 311 #define AZX_DCAPS_INTEL_SKYLAKE \
 312         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
 313          AZX_DCAPS_I915_POWERWELL)
 314
 315 /* quirks for ATI SB / AMD Hudson */
 316 #define AZX_DCAPS_PRESET_ATI_SB \
 317         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
 318          AZX_DCAPS_SNOOP_TYPE(ATI))
 319
 320 /* quirks for ATI/AMD HDMI */
 321 #define AZX_DCAPS_PRESET_ATI_HDMI \
 322         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
 323          AZX_DCAPS_NO_MSI64)
 324
 325 /* quirks for ATI HDMI with snoop off */
 326 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
 327         (AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
 328
 329 /* quirks for Nvidia */
 330 #define AZX_DCAPS_PRESET_NVIDIA \
 331         (AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
 332          AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\
 333          AZX_DCAPS_SNOOP_TYPE(NVIDIA))
 334
 335 #define AZX_DCAPS_PRESET_CTHDA \
 336         (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
 337          AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
 338
 339 /*
 340  * VGA-switcher support
 341  */
 342 #ifdef SUPPORT_VGA_SWITCHEROO
 343 #define use_vga_switcheroo(chip)        ((chip)->use_vga_switcheroo)
 344 #else
 345 #define use_vga_switcheroo(chip)        0
 346 #endif
 347
 348 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
 349                                         ((pci)->device == 0x0c0c) || \
 350                                         ((pci)->device == 0x0d0c) || \
 351                                         ((pci)->device == 0x160c))
 352
 353 static char *driver_short_names[] = {
 354         [AZX_DRIVER_ICH] = "HDA Intel",
 355         [AZX_DRIVER_PCH] = "HDA Intel PCH",
 356         [AZX_DRIVER_SCH] = "HDA Intel MID",
 357         [AZX_DRIVER_HDMI] = "HDA Intel HDMI",
 358         [AZX_DRIVER_ATI] = "HDA ATI SB",
 359         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 360         [AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
 361         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
 362         [AZX_DRIVER_SIS] = "HDA SIS966",
 363         [AZX_DRIVER_ULI] = "HDA ULI M5461",
 364         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
 365         [AZX_DRIVER_TERA] = "HDA Teradici",
 366         [AZX_DRIVER_CTX] = "HDA Creative",
 367         [AZX_DRIVER_CTHDA] = "HDA Creative",
 368         [AZX_DRIVER_CMEDIA] = "HDA C-Media",
 369         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
 370 };
 371
 372 #ifdef CONFIG_X86
 373 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
 374 {
 375         int pages;
 376
 377         if (azx_snoop(chip))
 378                 return;
 379         if (!dmab || !dmab->area || !dmab->bytes)
 380                 return;
 381
 382 #ifdef CONFIG_SND_DMA_SGBUF
 383         if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
 384                 struct snd_sg_buf *sgbuf = dmab->private_data;
 385                 if (chip->driver_type == AZX_DRIVER_CMEDIA)
 386                         return; /* deal with only CORB/RIRB buffers */
 387                 if (on)
 388                         set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
 389                 else
 390                         set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
 391                 return;
 392         }
 393 #endif
 394
 395         pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
 396         if (on)
 397                 set_memory_wc((unsigned long)dmab->area, pages);
 398         else
 399                 set_memory_wb((unsigned long)dmab->area, pages);
 400 }
 401
 402 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
 403                                  bool on)
 404 {
 405         __mark_pages_wc(chip, buf, on);
 406 }
 407 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
 408                                    struct snd_pcm_substream *substream, bool on)
 409 {
 410         if (azx_dev->wc_marked != on) {
 411                 __mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
 412                 azx_dev->wc_marked = on;
 413         }
 414 }
 415 #else
 416 /* NOP for other archs */
 417 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
 418                                  bool on)
 419 {
 420 }
 421 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
 422                                    struct snd_pcm_substream *substream, bool on)
 423 {
 424 }
 425 #endif
 426
 427 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
 428
 429 /*
 430  * initialize the PCI registers
 431  */
 432 /* update bits in a PCI register byte */
 433 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
 434                             unsigned char mask, unsigned char val)
 435 {
 436         unsigned char data;
 437
 438         pci_read_config_byte(pci, reg, &data);
 439         data &= ~mask;
 440         data |= (val & mask);
 441         pci_write_config_byte(pci, reg, data);
 442 }
 443
 444 static void azx_init_pci(struct azx *chip)
 445 {
 446         int snoop_type = azx_get_snoop_type(chip);
 447
 448         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
 449          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
 450          * Ensuring these bits are 0 clears playback static on some HD Audio
 451          * codecs.
 452          * The PCI register TCSEL is defined in the Intel manuals.
 453          */
 454         if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
 455                 dev_dbg(chip->card->dev, "Clearing TCSEL\n");
 456                 update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
 457         }
 458
 459         /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
 460          * we need to enable snoop.
 461          */
 462         if (snoop_type == AZX_SNOOP_TYPE_ATI) {
 463                 dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
 464                         azx_snoop(chip));
 465                 update_pci_byte(chip->pci,
 466                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
 467                                 azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
 468         }
 469
 470         /* For NVIDIA HDA, enable snoop */
 471         if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
 472                 dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
 473                         azx_snoop(chip));
 474                 update_pci_byte(chip->pci,
 475                                 NVIDIA_HDA_TRANSREG_ADDR,
 476                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
 477                 update_pci_byte(chip->pci,
 478                                 NVIDIA_HDA_ISTRM_COH,
 479                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 480                 update_pci_byte(chip->pci,
 481                                 NVIDIA_HDA_OSTRM_COH,
 482                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
 483         }
 484
 485         /* Enable SCH/PCH snoop if needed */
 486         if (snoop_type == AZX_SNOOP_TYPE_SCH) {
 487                 unsigned short snoop;
 488                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
 489                 if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
 490                     (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
 491                         snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
 492                         if (!azx_snoop(chip))
 493                                 snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
 494                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
 495                         pci_read_config_word(chip->pci,
 496                                 INTEL_SCH_HDA_DEVC, &snoop);
 497                 }
 498                 dev_dbg(chip->card->dev, "SCH snoop: %s\n",
 499                         (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
 500                         "Disabled" : "Enabled");
 501         }
 502 }
 503
 504 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
 505 {
 506         struct hdac_bus *bus = azx_bus(chip);
 507
 508         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 509                 snd_hdac_set_codec_wakeup(bus, true);
 510         azx_init_chip(chip, full_reset);
 511         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 512                 snd_hdac_set_codec_wakeup(bus, false);
 513 }
 514
 515 /* calculate runtime delay from LPIB */
 516 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
 517                                    unsigned int pos)
 518 {
 519         struct snd_pcm_substream *substream = azx_dev->core.substream;
 520         int stream = substream->stream;
 521         unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
 522         int delay;
 523
 524         if (stream == SNDRV_PCM_STREAM_PLAYBACK)
 525                 delay = pos - lpib_pos;
 526         else
 527                 delay = lpib_pos - pos;
 528         if (delay < 0) {
 529                 if (delay >= azx_dev->core.delay_negative_threshold)
 530                         delay = 0;
 531                 else
 532                         delay += azx_dev->core.bufsize;
 533         }
 534
 535         if (delay >= azx_dev->core.period_bytes) {
 536                 dev_info(chip->card->dev,
 537                          "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
 538                          delay, azx_dev->core.period_bytes);
 539                 delay = 0;
 540                 chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
 541                 chip->get_delay[stream] = NULL;
 542         }
 543
 544         return bytes_to_frames(substream->runtime, delay);
 545 }
 546
 547 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
 548
 549 /* called from IRQ */
 550 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
 551 {
 552         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 553         int ok;
 554
 555         ok = azx_position_ok(chip, azx_dev);
 556         if (ok == 1) {
 557                 azx_dev->irq_pending = 0;
 558                 return ok;
 559         } else if (ok == 0) {
 560                 /* bogus IRQ, process it later */
 561                 azx_dev->irq_pending = 1;
 562                 schedule_work(&hda->irq_pending_work);
 563         }
 564         return 0;
 565 }
 566
 567 /* Enable/disable i915 display power for the link */
 568 static int azx_intel_link_power(struct azx *chip, bool enable)
 569 {
 570         struct hdac_bus *bus = azx_bus(chip);
 571
 572         return snd_hdac_display_power(bus, enable);
 573 }
 574
 575 /*
 576  * Check whether the current DMA position is acceptable for updating
 577  * periods.  Returns non-zero if it's OK.
 578  *
 579  * Many HD-audio controllers appear pretty inaccurate about
 580  * the update-IRQ timing.  The IRQ is issued before actually the
 581  * data is processed.  So, we need to process it afterwords in a
 582  * workqueue.
 583  */
 584 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
 585 {
 586         struct snd_pcm_substream *substream = azx_dev->core.substream;
 587         int stream = substream->stream;
 588         u32 wallclk;
 589         unsigned int pos;
 590
 591         wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
 592         if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
 593                 return -1;      /* bogus (too early) interrupt */
 594
 595         if (chip->get_position[stream])
 596                 pos = chip->get_position[stream](chip, azx_dev);
 597         else { /* use the position buffer as default */
 598                 pos = azx_get_pos_posbuf(chip, azx_dev);
 599                 if (!pos || pos == (u32)-1) {
 600                         dev_info(chip->card->dev,
 601                                  "Invalid position buffer, using LPIB read method instead.\n");
 602                         chip->get_position[stream] = azx_get_pos_lpib;
 603                         if (chip->get_position[0] == azx_get_pos_lpib &&
 604                             chip->get_position[1] == azx_get_pos_lpib)
 605                                 azx_bus(chip)->use_posbuf = false;
 606                         pos = azx_get_pos_lpib(chip, azx_dev);
 607                         chip->get_delay[stream] = NULL;
 608                 } else {
 609                         chip->get_position[stream] = azx_get_pos_posbuf;
 610                         if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
 611                                 chip->get_delay[stream] = azx_get_delay_from_lpib;
 612                 }
 613         }
 614
 615         if (pos >= azx_dev->core.bufsize)
 616                 pos = 0;
 617
 618         if (WARN_ONCE(!azx_dev->core.period_bytes,
 619                       "hda-intel: zero azx_dev->period_bytes"))
 620                 return -1; /* this shouldn't happen! */
 621         if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
 622             pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
 623                 /* NG - it's below the first next period boundary */
 624                 return chip->bdl_pos_adj[chip->dev_index] ? 0 : -1;
 625         azx_dev->core.start_wallclk += wallclk;
 626         return 1; /* OK, it's fine */
 627 }
 628
 629 /*
 630  * The work for pending PCM period updates.
 631  */
 632 static void azx_irq_pending_work(struct work_struct *work)
 633 {
 634         struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
 635         struct azx *chip = &hda->chip;
 636         struct hdac_bus *bus = azx_bus(chip);
 637         struct hdac_stream *s;
 638         int pending, ok;
 639
 640         if (!hda->irq_pending_warned) {
 641                 dev_info(chip->card->dev,
 642                          "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
 643                          chip->card->number);
 644                 hda->irq_pending_warned = 1;
 645         }
 646
 647         for (;;) {
 648                 pending = 0;
 649                 spin_lock_irq(&bus->reg_lock);
 650                 list_for_each_entry(s, &bus->stream_list, list) {
 651                         struct azx_dev *azx_dev = stream_to_azx_dev(s);
 652                         if (!azx_dev->irq_pending ||
 653                             !s->substream ||
 654                             !s->running)
 655                                 continue;
 656                         ok = azx_position_ok(chip, azx_dev);
 657                         if (ok > 0) {
 658                                 azx_dev->irq_pending = 0;
 659                                 spin_unlock(&bus->reg_lock);
 660                                 snd_pcm_period_elapsed(s->substream);
 661                                 spin_lock(&bus->reg_lock);
 662                         } else if (ok < 0) {
 663                                 pending = 0;    /* too early */
 664                         } else
 665                                 pending++;
 666                 }
 667                 spin_unlock_irq(&bus->reg_lock);
 668                 if (!pending)
 669                         return;
 670                 msleep(1);
 671         }
 672 }
 673
 674 /* clear irq_pending flags and assure no on-going workq */
 675 static void azx_clear_irq_pending(struct azx *chip)
 676 {
 677         struct hdac_bus *bus = azx_bus(chip);
 678         struct hdac_stream *s;
 679
 680         spin_lock_irq(&bus->reg_lock);
 681         list_for_each_entry(s, &bus->stream_list, list) {
 682                 struct azx_dev *azx_dev = stream_to_azx_dev(s);
 683                 azx_dev->irq_pending = 0;
 684         }
 685         spin_unlock_irq(&bus->reg_lock);
 686 }
 687
 688 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
 689 {
 690         struct hdac_bus *bus = azx_bus(chip);
 691
 692         if (request_irq(chip->pci->irq, azx_interrupt,
 693                         chip->msi ? 0 : IRQF_SHARED,
 694                         KBUILD_MODNAME, chip)) {
 695                 dev_err(chip->card->dev,
 696                         "unable to grab IRQ %d, disabling device\n",
 697                         chip->pci->irq);
 698                 if (do_disconnect)
 699                         snd_card_disconnect(chip->card);
 700                 return -1;
 701         }
 702         bus->irq = chip->pci->irq;
 703         pci_intx(chip->pci, !chip->msi);
 704         return 0;
 705 }
 706
 707 /* get the current DMA position with correction on VIA chips */
 708 static unsigned int azx_via_get_position(struct azx *chip,
 709                                          struct azx_dev *azx_dev)
 710 {
 711         unsigned int link_pos, mini_pos, bound_pos;
 712         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
 713         unsigned int fifo_size;
 714
 715         link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
 716         if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 717                 /* Playback, no problem using link position */
 718                 return link_pos;
 719         }
 720
 721         /* Capture */
 722         /* For new chipset,
 723          * use mod to get the DMA position just like old chipset
 724          */
 725         mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
 726         mod_dma_pos %= azx_dev->core.period_bytes;
 727
 728         /* azx_dev->fifo_size can't get FIFO size of in stream.
 729          * Get from base address + offset.
 730          */
 731         fifo_size = readw(azx_bus(chip)->remap_addr +
 732                           VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
 733
 734         if (azx_dev->insufficient) {
 735                 /* Link position never gather than FIFO size */
 736                 if (link_pos <= fifo_size)
 737                         return 0;
 738
 739                 azx_dev->insufficient = 0;
 740         }
 741
 742         if (link_pos <= fifo_size)
 743                 mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
 744         else
 745                 mini_pos = link_pos - fifo_size;
 746
 747         /* Find nearest previous boudary */
 748         mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
 749         mod_link_pos = link_pos % azx_dev->core.period_bytes;
 750         if (mod_link_pos >= fifo_size)
 751                 bound_pos = link_pos - mod_link_pos;
 752         else if (mod_dma_pos >= mod_mini_pos)
 753                 bound_pos = mini_pos - mod_mini_pos;
 754         else {
 755                 bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
 756                 if (bound_pos >= azx_dev->core.bufsize)
 757                         bound_pos = 0;
 758         }
 759
 760         /* Calculate real DMA position we want */
 761         return bound_pos + mod_dma_pos;
 762 }
 763
 764 #ifdef CONFIG_PM
 765 static DEFINE_MUTEX(card_list_lock);
 766 static LIST_HEAD(card_list);
 767
 768 static void azx_add_card_list(struct azx *chip)
 769 {
 770         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 771         mutex_lock(&card_list_lock);
 772         list_add(&hda->list, &card_list);
 773         mutex_unlock(&card_list_lock);
 774 }
 775
 776 static void azx_del_card_list(struct azx *chip)
 777 {
 778         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
 779         mutex_lock(&card_list_lock);
 780         list_del_init(&hda->list);
 781         mutex_unlock(&card_list_lock);
 782 }
 783
 784 /* trigger power-save check at writing parameter */
 785 static int param_set_xint(const char *val, const struct kernel_param *kp)
 786 {
 787         struct hda_intel *hda;
 788         struct azx *chip;
 789         int prev = power_save;
 790         int ret = param_set_int(val, kp);
 791
 792         if (ret || prev == power_save)
 793                 return ret;
 794
 795         mutex_lock(&card_list_lock);
 796         list_for_each_entry(hda, &card_list, list) {
 797                 chip = &hda->chip;
 798                 if (!hda->probe_continued || chip->disabled)
 799                         continue;
 800                 snd_hda_set_power_save(&chip->bus, power_save * 1000);
 801         }
 802         mutex_unlock(&card_list_lock);
 803         return 0;
 804 }
 805 #else
 806 #define azx_add_card_list(chip) /* NOP */
 807 #define azx_del_card_list(chip) /* NOP */
 808 #endif /* CONFIG_PM */
 809
 810 /* Intel HSW/BDW display HDA controller is in GPU. Both its power and link BCLK
 811  * depends on GPU. Two Extended Mode registers EM4 (M value) and EM5 (N Value)
 812  * are used to convert CDClk (Core Display Clock) to 24MHz BCLK:
 813  * BCLK = CDCLK * M / N
 814  * The values will be lost when the display power well is disabled and need to
 815  * be restored to avoid abnormal playback speed.
 816  */
 817 static void haswell_set_bclk(struct hda_intel *hda)
 818 {
 819         struct azx *chip = &hda->chip;
 820         int cdclk_freq;
 821         unsigned int bclk_m, bclk_n;
 822
 823         if (!hda->need_i915_power)
 824                 return;
 825
 826         cdclk_freq = snd_hdac_get_display_clk(azx_bus(chip));
 827         switch (cdclk_freq) {
 828         case 337500:
 829                 bclk_m = 16;
 830                 bclk_n = 225;
 831                 break;
 832
 833         case 450000:
 834         default: /* default CDCLK 450MHz */
 835                 bclk_m = 4;
 836                 bclk_n = 75;
 837                 break;
 838
 839         case 540000:
 840                 bclk_m = 4;
 841                 bclk_n = 90;
 842                 break;
 843
 844         case 675000:
 845                 bclk_m = 8;
 846                 bclk_n = 225;
 847                 break;
 848         }
 849
 850         azx_writew(chip, HSW_EM4, bclk_m);
 851         azx_writew(chip, HSW_EM5, bclk_n);
 852 }
 853
 854 #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
 855 /*
 856  * power management
 857  */
 858 static int azx_suspend(struct device *dev)
 859 {
 860         struct snd_card *card = dev_get_drvdata(dev);
 861         struct azx *chip;
 862         struct hda_intel *hda;
 863         struct hdac_bus *bus;
 864
 865         if (!card)
 866                 return 0;
 867
 868         chip = card->private_data;
 869         hda = container_of(chip, struct hda_intel, chip);
 870         if (chip->disabled || hda->init_failed)
 871                 return 0;
 872
 873         bus = azx_bus(chip);
 874         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 875         azx_clear_irq_pending(chip);
 876         azx_stop_chip(chip);
 877         azx_enter_link_reset(chip);
 878         if (bus->irq >= 0) {
 879                 free_irq(bus->irq, chip);
 880                 bus->irq = -1;
 881         }
 882
 883         if (chip->msi)
 884                 pci_disable_msi(chip->pci);
 885         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
 886                 && hda->need_i915_power)
 887                 snd_hdac_display_power(bus, false);
 888
 889         trace_azx_suspend(chip);
 890         return 0;
 891 }
 892
 893 static int azx_resume(struct device *dev)
 894 {
 895         struct pci_dev *pci = to_pci_dev(dev);
 896         struct snd_card *card = dev_get_drvdata(dev);
 897         struct azx *chip;
 898         struct hda_intel *hda;
 899
 900         if (!card)
 901                 return 0;
 902
 903         chip = card->private_data;
 904         hda = container_of(chip, struct hda_intel, chip);
 905         if (chip->disabled || hda->init_failed)
 906                 return 0;
 907
 908         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
 909                 && hda->need_i915_power) {
 910                 snd_hdac_display_power(azx_bus(chip), true);
 911                 haswell_set_bclk(hda);
 912         }
 913         if (chip->msi)
 914                 if (pci_enable_msi(pci) < 0)
 915                         chip->msi = 0;
 916         if (azx_acquire_irq(chip, 1) < 0)
 917                 return -EIO;
 918         azx_init_pci(chip);
 919
 920         hda_intel_init_chip(chip, true);
 921
 922         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
 923
 924         trace_azx_resume(chip);
 925         return 0;
 926 }
 927 #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
 928
 929 #ifdef CONFIG_PM
 930 static int azx_runtime_suspend(struct device *dev)
 931 {
 932         struct snd_card *card = dev_get_drvdata(dev);
 933         struct azx *chip;
 934         struct hda_intel *hda;
 935
 936         if (!card)
 937                 return 0;
 938
 939         chip = card->private_data;
 940         hda = container_of(chip, struct hda_intel, chip);
 941         if (chip->disabled || hda->init_failed)
 942                 return 0;
 943
 944         if (!azx_has_pm_runtime(chip))
 945                 return 0;
 946
 947         /* enable controller wake up event */
 948         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
 949                   STATESTS_INT_MASK);
 950
 951         azx_stop_chip(chip);
 952         azx_enter_link_reset(chip);
 953         azx_clear_irq_pending(chip);
 954         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
 955                 && hda->need_i915_power)
 956                 snd_hdac_display_power(azx_bus(chip), false);
 957
 958         trace_azx_runtime_suspend(chip);
 959         return 0;
 960 }
 961
 962 static int azx_runtime_resume(struct device *dev)
 963 {
 964         struct snd_card *card = dev_get_drvdata(dev);
 965         struct azx *chip;
 966         struct hda_intel *hda;
 967         struct hdac_bus *bus;
 968         struct hda_codec *codec;
 969         int status;
 970
 971         if (!card)
 972                 return 0;
 973
 974         chip = card->private_data;
 975         hda = container_of(chip, struct hda_intel, chip);
 976         if (chip->disabled || hda->init_failed)
 977                 return 0;
 978
 979         if (!azx_has_pm_runtime(chip))
 980                 return 0;
 981
 982         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
 983                 && hda->need_i915_power) {
 984                 bus =  azx_bus(chip);
 985                 snd_hdac_display_power(bus, true);
 986                 haswell_set_bclk(hda);
 987                 /* toggle codec wakeup bit for STATESTS read */
 988                 snd_hdac_set_codec_wakeup(bus, true);
 989                 snd_hdac_set_codec_wakeup(bus, false);
 990         }
 991
 992         /* Read STATESTS before controller reset */
 993         status = azx_readw(chip, STATESTS);
 994
 995         azx_init_pci(chip);
 996         hda_intel_init_chip(chip, true);
 997
 998         if (status) {
 999                 list_for_each_codec(codec, &chip->bus)
1000                         if (status & (1 << codec->addr))
1001                                 schedule_delayed_work(&codec->jackpoll_work,
1002                                                       codec->jackpoll_interval);
1003         }
1004
1005         /* disable controller Wake Up event*/
1006         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1007                         ~STATESTS_INT_MASK);
1008
1009         trace_azx_runtime_resume(chip);
1010         return 0;
1011 }
1012
1013 static int azx_runtime_idle(struct device *dev)
1014 {
1015         struct snd_card *card = dev_get_drvdata(dev);
1016         struct azx *chip;
1017         struct hda_intel *hda;
1018
1019         if (!card)
1020                 return 0;
1021
1022         chip = card->private_data;
1023         hda = container_of(chip, struct hda_intel, chip);
1024         if (chip->disabled || hda->init_failed)
1025                 return 0;
1026
1027         if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1028             azx_bus(chip)->codec_powered)
1029                 return -EBUSY;
1030
1031         return 0;
1032 }
1033
1034 static const struct dev_pm_ops azx_pm = {
1035         SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1036         SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1037 };
1038
1039 #define AZX_PM_OPS      &azx_pm
1040 #else
1041 #define AZX_PM_OPS      NULL
1042 #endif /* CONFIG_PM */
1043
1044
1045 static int azx_probe_continue(struct azx *chip);
1046
1047 #ifdef SUPPORT_VGA_SWITCHEROO
1048 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1049
1050 static void azx_vs_set_state(struct pci_dev *pci,
1051                              enum vga_switcheroo_state state)
1052 {
1053         struct snd_card *card = pci_get_drvdata(pci);
1054         struct azx *chip = card->private_data;
1055         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1056         bool disabled;
1057
1058         wait_for_completion(&hda->probe_wait);
1059         if (hda->init_failed)
1060                 return;
1061
1062         disabled = (state == VGA_SWITCHEROO_OFF);
1063         if (chip->disabled == disabled)
1064                 return;
1065
1066         if (!hda->probe_continued) {
1067                 chip->disabled = disabled;
1068                 if (!disabled) {
1069                         dev_info(chip->card->dev,
1070                                  "Start delayed initialization\n");
1071                         if (azx_probe_continue(chip) < 0) {
1072                                 dev_err(chip->card->dev, "initialization error\n");
1073                                 hda->init_failed = true;
1074                         }
1075                 }
1076         } else {
1077                 dev_info(chip->card->dev, "%s via VGA-switcheroo\n",
1078                          disabled ? "Disabling" : "Enabling");
1079                 if (disabled) {
1080                         pm_runtime_put_sync_suspend(card->dev);
1081                         azx_suspend(card->dev);
1082                         /* when we get suspended by vga switcheroo we end up in D3cold,
1083                          * however we have no ACPI handle, so pci/acpi can't put us there,
1084                          * put ourselves there */
1085                         pci->current_state = PCI_D3cold;
1086                         chip->disabled = true;
1087                         if (snd_hda_lock_devices(&chip->bus))
1088                                 dev_warn(chip->card->dev,
1089                                          "Cannot lock devices!\n");
1090                 } else {
1091                         snd_hda_unlock_devices(&chip->bus);
1092                         pm_runtime_get_noresume(card->dev);
1093                         chip->disabled = false;
1094                         azx_resume(card->dev);
1095                 }
1096         }
1097 }
1098
1099 static bool azx_vs_can_switch(struct pci_dev *pci)
1100 {
1101         struct snd_card *card = pci_get_drvdata(pci);
1102         struct azx *chip = card->private_data;
1103         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1104
1105         wait_for_completion(&hda->probe_wait);
1106         if (hda->init_failed)
1107                 return false;
1108         if (chip->disabled || !hda->probe_continued)
1109                 return true;
1110         if (snd_hda_lock_devices(&chip->bus))
1111                 return false;
1112         snd_hda_unlock_devices(&chip->bus);
1113         return true;
1114 }
1115
1116 static void init_vga_switcheroo(struct azx *chip)
1117 {
1118         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1119         struct pci_dev *p = get_bound_vga(chip->pci);
1120         if (p) {
1121                 dev_info(chip->card->dev,
1122                          "Handle VGA-switcheroo audio client\n");
1123                 hda->use_vga_switcheroo = 1;
1124                 pci_dev_put(p);
1125         }
1126 }
1127
1128 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1129         .set_gpu_state = azx_vs_set_state,
1130         .can_switch = azx_vs_can_switch,
1131 };
1132
1133 static int register_vga_switcheroo(struct azx *chip)
1134 {
1135         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1136         int err;
1137
1138         if (!hda->use_vga_switcheroo)
1139                 return 0;
1140         /* FIXME: currently only handling DIS controller
1141          * is there any machine with two switchable HDMI audio controllers?
1142          */
1143         err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
1144                                                     VGA_SWITCHEROO_DIS,
1145                                                     hda->probe_continued);
1146         if (err < 0)
1147                 return err;
1148         hda->vga_switcheroo_registered = 1;
1149
1150         /* register as an optimus hdmi audio power domain */
1151         vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
1152                                                          &hda->hdmi_pm_domain);
1153         return 0;
1154 }
1155 #else
1156 #define init_vga_switcheroo(chip)               /* NOP */
1157 #define register_vga_switcheroo(chip)           0
1158 #define check_hdmi_disabled(pci)        false
1159 #endif /* SUPPORT_VGA_SWITCHER */
1160
1161 /*
1162  * destructor
1163  */
1164 static int azx_free(struct azx *chip)
1165 {
1166         struct pci_dev *pci = chip->pci;
1167         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1168         struct hdac_bus *bus = azx_bus(chip);
1169
1170         if (azx_has_pm_runtime(chip) && chip->running)
1171                 pm_runtime_get_noresume(&pci->dev);
1172
1173         azx_del_card_list(chip);
1174
1175         hda->init_failed = 1; /* to be sure */
1176         complete_all(&hda->probe_wait);
1177
1178         if (use_vga_switcheroo(hda)) {
1179                 if (chip->disabled && hda->probe_continued)
1180                         snd_hda_unlock_devices(&chip->bus);
1181                 if (hda->vga_switcheroo_registered)
1182                         vga_switcheroo_unregister_client(chip->pci);
1183         }
1184
1185         if (bus->chip_init) {
1186                 azx_clear_irq_pending(chip);
1187                 azx_stop_all_streams(chip);
1188                 azx_stop_chip(chip);
1189         }
1190
1191         if (bus->irq >= 0)
1192                 free_irq(bus->irq, (void*)chip);
1193         if (chip->msi)
1194                 pci_disable_msi(chip->pci);
1195         iounmap(bus->remap_addr);
1196
1197         azx_free_stream_pages(chip);
1198         azx_free_streams(chip);
1199         snd_hdac_bus_exit(bus);
1200
1201         if (chip->region_requested)
1202                 pci_release_regions(chip->pci);
1203
1204         pci_disable_device(chip->pci);
1205 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1206         release_firmware(chip->fw);
1207 #endif
1208
1209         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1210                 if (hda->need_i915_power)
1211                         snd_hdac_display_power(bus, false);
1212                 snd_hdac_i915_exit(bus);
1213         }
1214         kfree(hda);
1215
1216         return 0;
1217 }
1218
1219 static int azx_dev_disconnect(struct snd_device *device)
1220 {
1221         struct azx *chip = device->device_data;
1222
1223         chip->bus.shutdown = 1;
1224         return 0;
1225 }
1226
1227 static int azx_dev_free(struct snd_device *device)
1228 {
1229         return azx_free(device->device_data);
1230 }
1231
1232 #ifdef SUPPORT_VGA_SWITCHEROO
1233 /*
1234  * Check of disabled HDMI controller by vga-switcheroo
1235  */
1236 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1237 {
1238         struct pci_dev *p;
1239
1240         /* check only discrete GPU */
1241         switch (pci->vendor) {
1242         case PCI_VENDOR_ID_ATI:
1243         case PCI_VENDOR_ID_AMD:
1244         case PCI_VENDOR_ID_NVIDIA:
1245                 if (pci->devfn == 1) {
1246                         p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1247                                                         pci->bus->number, 0);
1248                         if (p) {
1249                                 if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
1250                                         return p;
1251                                 pci_dev_put(p);
1252                         }
1253                 }
1254                 break;
1255         }
1256         return NULL;
1257 }
1258
1259 static bool check_hdmi_disabled(struct pci_dev *pci)
1260 {
1261         bool vga_inactive = false;
1262         struct pci_dev *p = get_bound_vga(pci);
1263
1264         if (p) {
1265                 if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1266                         vga_inactive = true;
1267                 pci_dev_put(p);
1268         }
1269         return vga_inactive;
1270 }
1271 #endif /* SUPPORT_VGA_SWITCHEROO */
1272
1273 /*
1274  * white/black-listing for position_fix
1275  */
1276 static struct snd_pci_quirk position_fix_list[] = {
1277         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1278         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1279         SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1280         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1281         SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1282         SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1283         SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1284         SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1285         SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1286         SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1287         SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1288         SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1289         SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1290         SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1291         {}
1292 };
1293
1294 static int check_position_fix(struct azx *chip, int fix)
1295 {
1296         const struct snd_pci_quirk *q;
1297
1298         switch (fix) {
1299         case POS_FIX_AUTO:
1300         case POS_FIX_LPIB:
1301         case POS_FIX_POSBUF:
1302         case POS_FIX_VIACOMBO:
1303         case POS_FIX_COMBO:
1304                 return fix;
1305         }
1306
1307         q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1308         if (q) {
1309                 dev_info(chip->card->dev,
1310                          "position_fix set to %d for device %04x:%04x\n",
1311                          q->value, q->subvendor, q->subdevice);
1312                 return q->value;
1313         }
1314
1315         /* Check VIA/ATI HD Audio Controller exist */
1316         if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
1317                 dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1318                 return POS_FIX_VIACOMBO;
1319         }
1320         if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1321                 dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1322                 return POS_FIX_LPIB;
1323         }
1324         return POS_FIX_AUTO;
1325 }
1326
1327 static void assign_position_fix(struct azx *chip, int fix)
1328 {
1329         static azx_get_pos_callback_t callbacks[] = {
1330                 [POS_FIX_AUTO] = NULL,
1331                 [POS_FIX_LPIB] = azx_get_pos_lpib,
1332                 [POS_FIX_POSBUF] = azx_get_pos_posbuf,
1333                 [POS_FIX_VIACOMBO] = azx_via_get_position,
1334                 [POS_FIX_COMBO] = azx_get_pos_lpib,
1335         };
1336
1337         chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1338
1339         /* combo mode uses LPIB only for playback */
1340         if (fix == POS_FIX_COMBO)
1341                 chip->get_position[1] = NULL;
1342
1343         if (fix == POS_FIX_POSBUF &&
1344             (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1345                 chip->get_delay[0] = chip->get_delay[1] =
1346                         azx_get_delay_from_lpib;
1347         }
1348
1349 }
1350
1351 /*
1352  * black-lists for probe_mask
1353  */
1354 static struct snd_pci_quirk probe_mask_list[] = {
1355         /* Thinkpad often breaks the controller communication when accessing
1356          * to the non-working (or non-existing) modem codec slot.
1357          */
1358         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1359         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1360         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1361         /* broken BIOS */
1362         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1363         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1364         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1365         /* forced codec slots */
1366         SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1367         SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1368         /* WinFast VP200 H (Teradici) user reported broken communication */
1369         SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1370         {}
1371 };
1372
1373 #define AZX_FORCE_CODEC_MASK    0x100
1374
1375 static void check_probe_mask(struct azx *chip, int dev)
1376 {
1377         const struct snd_pci_quirk *q;
1378
1379         chip->codec_probe_mask = probe_mask[dev];
1380         if (chip->codec_probe_mask == -1) {
1381                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1382                 if (q) {
1383                         dev_info(chip->card->dev,
1384                                  "probe_mask set to 0x%x for device %04x:%04x\n",
1385                                  q->value, q->subvendor, q->subdevice);
1386                         chip->codec_probe_mask = q->value;
1387                 }
1388         }
1389
1390         /* check forced option */
1391         if (chip->codec_probe_mask != -1 &&
1392             (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1393                 azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1394                 dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1395                          (int)azx_bus(chip)->codec_mask);
1396         }
1397 }
1398
1399 /*
1400  * white/black-list for enable_msi
1401  */
1402 static struct snd_pci_quirk msi_black_list[] = {
1403         SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1404         SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1405         SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1406         SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1407         SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1408         SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1409         SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1410         SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1411         SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1412         SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1413         {}
1414 };
1415
1416 static void check_msi(struct azx *chip)
1417 {
1418         const struct snd_pci_quirk *q;
1419
1420         if (enable_msi >= 0) {
1421                 chip->msi = !!enable_msi;
1422                 return;
1423         }
1424         chip->msi = 1;  /* enable MSI as default */
1425         q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1426         if (q) {
1427                 dev_info(chip->card->dev,
1428                          "msi for device %04x:%04x set to %d\n",
1429                          q->subvendor, q->subdevice, q->value);
1430                 chip->msi = q->value;
1431                 return;
1432         }
1433
1434         /* NVidia chipsets seem to cause troubles with MSI */
1435         if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1436                 dev_info(chip->card->dev, "Disabling MSI\n");
1437                 chip->msi = 0;
1438         }
1439 }
1440
1441 /* check the snoop mode availability */
1442 static void azx_check_snoop_available(struct azx *chip)
1443 {
1444         int snoop = hda_snoop;
1445
1446         if (snoop >= 0) {
1447                 dev_info(chip->card->dev, "Force to %s mode by module option\n",
1448                          snoop ? "snoop" : "non-snoop");
1449                 chip->snoop = snoop;
1450                 return;
1451         }
1452
1453         snoop = true;
1454         if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1455             chip->driver_type == AZX_DRIVER_VIA) {
1456                 /* force to non-snoop mode for a new VIA controller
1457                  * when BIOS is set
1458                  */
1459                 u8 val;
1460                 pci_read_config_byte(chip->pci, 0x42, &val);
1461                 if (!(val & 0x80) && chip->pci->revision == 0x30)
1462                         snoop = false;
1463         }
1464
1465         if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1466                 snoop = false;
1467
1468         chip->snoop = snoop;
1469         if (!snoop)
1470                 dev_info(chip->card->dev, "Force to non-snoop mode\n");
1471 }
1472
1473 static void azx_probe_work(struct work_struct *work)
1474 {
1475         struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1476         azx_probe_continue(&hda->chip);
1477 }
1478
1479 /*
1480  * constructor
1481  */
1482 static const struct hdac_io_ops pci_hda_io_ops;
1483 static const struct hda_controller_ops pci_hda_ops;
1484
1485 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1486                       int dev, unsigned int driver_caps,
1487                       struct azx **rchip)
1488 {
1489         static struct snd_device_ops ops = {
1490                 .dev_disconnect = azx_dev_disconnect,
1491                 .dev_free = azx_dev_free,
1492         };
1493         struct hda_intel *hda;
1494         struct azx *chip;
1495         int err;
1496
1497         *rchip = NULL;
1498
1499         err = pci_enable_device(pci);
1500         if (err < 0)
1501                 return err;
1502
1503         hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1504         if (!hda) {
1505                 pci_disable_device(pci);
1506                 return -ENOMEM;
1507         }
1508
1509         chip = &hda->chip;
1510         mutex_init(&chip->open_mutex);
1511         chip->card = card;
1512         chip->pci = pci;
1513         chip->ops = &pci_hda_ops;
1514         chip->driver_caps = driver_caps;
1515         chip->driver_type = driver_caps & 0xff;
1516         check_msi(chip);
1517         chip->dev_index = dev;
1518         chip->jackpoll_ms = jackpoll_ms;
1519         INIT_LIST_HEAD(&chip->pcm_list);
1520         INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1521         INIT_LIST_HEAD(&hda->list);
1522         init_vga_switcheroo(chip);
1523         init_completion(&hda->probe_wait);
1524
1525         assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1526
1527         check_probe_mask(chip, dev);
1528
1529         chip->single_cmd = single_cmd;
1530         azx_check_snoop_available(chip);
1531
1532         if (bdl_pos_adj[dev] < 0) {
1533                 switch (chip->driver_type) {
1534                 case AZX_DRIVER_ICH:
1535                 case AZX_DRIVER_PCH:
1536                         bdl_pos_adj[dev] = 1;
1537                         break;
1538                 default:
1539                         bdl_pos_adj[dev] = 32;
1540                         break;
1541                 }
1542         }
1543         chip->bdl_pos_adj = bdl_pos_adj;
1544
1545         err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
1546         if (err < 0) {
1547                 kfree(hda);
1548                 pci_disable_device(pci);
1549                 return err;
1550         }
1551
1552         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1553         if (err < 0) {
1554                 dev_err(card->dev, "Error creating device [card]!\n");
1555                 azx_free(chip);
1556                 return err;
1557         }
1558
1559         /* continue probing in work context as may trigger request module */
1560         INIT_WORK(&hda->probe_work, azx_probe_work);
1561
1562         *rchip = chip;
1563
1564         return 0;
1565 }
1566
1567 static int azx_first_init(struct azx *chip)
1568 {
1569         int dev = chip->dev_index;
1570         struct pci_dev *pci = chip->pci;
1571         struct snd_card *card = chip->card;
1572         struct hdac_bus *bus = azx_bus(chip);
1573         int err;
1574         unsigned short gcap;
1575         unsigned int dma_bits = 64;
1576
1577 #if BITS_PER_LONG != 64
1578         /* Fix up base address on ULI M5461 */
1579         if (chip->driver_type == AZX_DRIVER_ULI) {
1580                 u16 tmp3;
1581                 pci_read_config_word(pci, 0x40, &tmp3);
1582                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1583                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1584         }
1585 #endif
1586
1587         err = pci_request_regions(pci, "ICH HD audio");
1588         if (err < 0)
1589                 return err;
1590         chip->region_requested = 1;
1591
1592         bus->addr = pci_resource_start(pci, 0);
1593         bus->remap_addr = pci_ioremap_bar(pci, 0);
1594         if (bus->remap_addr == NULL) {
1595                 dev_err(card->dev, "ioremap error\n");
1596                 return -ENXIO;
1597         }
1598
1599         if (chip->msi) {
1600                 if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1601                         dev_dbg(card->dev, "Disabling 64bit MSI\n");
1602                         pci->no_64bit_msi = true;
1603                 }
1604                 if (pci_enable_msi(pci) < 0)
1605                         chip->msi = 0;
1606         }
1607
1608         if (azx_acquire_irq(chip, 0) < 0)
1609                 return -EBUSY;
1610
1611         pci_set_master(pci);
1612         synchronize_irq(bus->irq);
1613
1614         gcap = azx_readw(chip, GCAP);
1615         dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1616
1617         /* AMD devices support 40 or 48bit DMA, take the safe one */
1618         if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1619                 dma_bits = 40;
1620
1621         /* disable SB600 64bit support for safety */
1622         if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1623                 struct pci_dev *p_smbus;
1624                 dma_bits = 40;
1625                 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1626                                          PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1627                                          NULL);
1628                 if (p_smbus) {
1629                         if (p_smbus->revision < 0x30)
1630                                 gcap &= ~AZX_GCAP_64OK;
1631                         pci_dev_put(p_smbus);
1632                 }
1633         }
1634
1635         /* disable 64bit DMA address on some devices */
1636         if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1637                 dev_dbg(card->dev, "Disabling 64bit DMA\n");
1638                 gcap &= ~AZX_GCAP_64OK;
1639         }
1640
1641         /* disable buffer size rounding to 128-byte multiples if supported */
1642         if (align_buffer_size >= 0)
1643                 chip->align_buffer_size = !!align_buffer_size;
1644         else {
1645                 if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1646                         chip->align_buffer_size = 0;
1647                 else
1648                         chip->align_buffer_size = 1;
1649         }
1650
1651         /* allow 64bit DMA address if supported by H/W */
1652         if (!(gcap & AZX_GCAP_64OK))
1653                 dma_bits = 32;
1654         if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1655                 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1656         } else {
1657                 dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1658                 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1659         }
1660
1661         /* read number of streams from GCAP register instead of using
1662          * hardcoded value
1663          */
1664         chip->capture_streams = (gcap >> 8) & 0x0f;
1665         chip->playback_streams = (gcap >> 12) & 0x0f;
1666         if (!chip->playback_streams && !chip->capture_streams) {
1667                 /* gcap didn't give any info, switching to old method */
1668
1669                 switch (chip->driver_type) {
1670                 case AZX_DRIVER_ULI:
1671                         chip->playback_streams = ULI_NUM_PLAYBACK;
1672                         chip->capture_streams = ULI_NUM_CAPTURE;
1673                         break;
1674                 case AZX_DRIVER_ATIHDMI:
1675                 case AZX_DRIVER_ATIHDMI_NS:
1676                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1677                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1678                         break;
1679                 case AZX_DRIVER_GENERIC:
1680                 default:
1681                         chip->playback_streams = ICH6_NUM_PLAYBACK;
1682                         chip->capture_streams = ICH6_NUM_CAPTURE;
1683                         break;
1684                 }
1685         }
1686         chip->capture_index_offset = 0;
1687         chip->playback_index_offset = chip->capture_streams;
1688         chip->num_streams = chip->playback_streams + chip->capture_streams;
1689
1690         /* initialize streams */
1691         err = azx_init_streams(chip);
1692         if (err < 0)
1693                 return err;
1694
1695         err = azx_alloc_stream_pages(chip);
1696         if (err < 0)
1697                 return err;
1698
1699         /* initialize chip */
1700         azx_init_pci(chip);
1701
1702         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1703                 struct hda_intel *hda;
1704
1705                 hda = container_of(chip, struct hda_intel, chip);
1706                 haswell_set_bclk(hda);
1707         }
1708
1709         hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1710
1711         /* codec detection */
1712         if (!azx_bus(chip)->codec_mask) {
1713                 dev_err(card->dev, "no codecs found!\n");
1714                 return -ENODEV;
1715         }
1716
1717         strcpy(card->driver, "HDA-Intel");
1718         strlcpy(card->shortname, driver_short_names[chip->driver_type],
1719                 sizeof(card->shortname));
1720         snprintf(card->longname, sizeof(card->longname),
1721                  "%s at 0x%lx irq %i",
1722                  card->shortname, bus->addr, bus->irq);
1723
1724         return 0;
1725 }
1726
1727 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1728 /* callback from request_firmware_nowait() */
1729 static void azx_firmware_cb(const struct firmware *fw, void *context)
1730 {
1731         struct snd_card *card = context;
1732         struct azx *chip = card->private_data;
1733         struct pci_dev *pci = chip->pci;
1734
1735         if (!fw) {
1736                 dev_err(card->dev, "Cannot load firmware, aborting\n");
1737                 goto error;
1738         }
1739
1740         chip->fw = fw;
1741         if (!chip->disabled) {
1742                 /* continue probing */
1743                 if (azx_probe_continue(chip))
1744                         goto error;
1745         }
1746         return; /* OK */
1747
1748  error:
1749         snd_card_free(card);
1750         pci_set_drvdata(pci, NULL);
1751 }
1752 #endif
1753
1754 /*
1755  * HDA controller ops.
1756  */
1757
1758 /* PCI register access. */
1759 static void pci_azx_writel(u32 value, u32 __iomem *addr)
1760 {
1761         writel(value, addr);
1762 }
1763
1764 static u32 pci_azx_readl(u32 __iomem *addr)
1765 {
1766         return readl(addr);
1767 }
1768
1769 static void pci_azx_writew(u16 value, u16 __iomem *addr)
1770 {
1771         writew(value, addr);
1772 }
1773
1774 static u16 pci_azx_readw(u16 __iomem *addr)
1775 {
1776         return readw(addr);
1777 }
1778
1779 static void pci_azx_writeb(u8 value, u8 __iomem *addr)
1780 {
1781         writeb(value, addr);
1782 }
1783
1784 static u8 pci_azx_readb(u8 __iomem *addr)
1785 {
1786         return readb(addr);
1787 }
1788
1789 static int disable_msi_reset_irq(struct azx *chip)
1790 {
1791         struct hdac_bus *bus = azx_bus(chip);
1792         int err;
1793
1794         free_irq(bus->irq, chip);
1795         bus->irq = -1;
1796         pci_disable_msi(chip->pci);
1797         chip->msi = 0;
1798         err = azx_acquire_irq(chip, 1);
1799         if (err < 0)
1800                 return err;
1801
1802         return 0;
1803 }
1804
1805 /* DMA page allocation helpers.  */
1806 static int dma_alloc_pages(struct hdac_bus *bus,
1807                            int type,
1808                            size_t size,
1809                            struct snd_dma_buffer *buf)
1810 {
1811         struct azx *chip = bus_to_azx(bus);
1812         int err;
1813
1814         err = snd_dma_alloc_pages(type,
1815                                   bus->dev,
1816                                   size, buf);
1817         if (err < 0)
1818                 return err;
1819         mark_pages_wc(chip, buf, true);
1820         return 0;
1821 }
1822
1823 static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
1824 {
1825         struct azx *chip = bus_to_azx(bus);
1826
1827         mark_pages_wc(chip, buf, false);
1828         snd_dma_free_pages(buf);
1829 }
1830
1831 static int substream_alloc_pages(struct azx *chip,
1832                                  struct snd_pcm_substream *substream,
1833                                  size_t size)
1834 {
1835         struct azx_dev *azx_dev = get_azx_dev(substream);
1836         int ret;
1837
1838         mark_runtime_wc(chip, azx_dev, substream, false);
1839         ret = snd_pcm_lib_malloc_pages(substream, size);
1840         if (ret < 0)
1841                 return ret;
1842         mark_runtime_wc(chip, azx_dev, substream, true);
1843         return 0;
1844 }
1845
1846 static int substream_free_pages(struct azx *chip,
1847                                 struct snd_pcm_substream *substream)
1848 {
1849         struct azx_dev *azx_dev = get_azx_dev(substream);
1850         mark_runtime_wc(chip, azx_dev, substream, false);
1851         return snd_pcm_lib_free_pages(substream);
1852 }
1853
1854 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
1855                              struct vm_area_struct *area)
1856 {
1857 #ifdef CONFIG_X86
1858         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1859         struct azx *chip = apcm->chip;
1860         if (!azx_snoop(chip) && chip->driver_type != AZX_DRIVER_CMEDIA)
1861                 area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
1862 #endif
1863 }
1864
1865 static const struct hdac_io_ops pci_hda_io_ops = {
1866         .reg_writel = pci_azx_writel,
1867         .reg_readl = pci_azx_readl,
1868         .reg_writew = pci_azx_writew,
1869         .reg_readw = pci_azx_readw,
1870         .reg_writeb = pci_azx_writeb,
1871         .reg_readb = pci_azx_readb,
1872         .dma_alloc_pages = dma_alloc_pages,
1873         .dma_free_pages = dma_free_pages,
1874 };
1875
1876 static const struct hda_controller_ops pci_hda_ops = {
1877         .disable_msi_reset_irq = disable_msi_reset_irq,
1878         .substream_alloc_pages = substream_alloc_pages,
1879         .substream_free_pages = substream_free_pages,
1880         .pcm_mmap_prepare = pcm_mmap_prepare,
1881         .position_check = azx_position_check,
1882         .link_power = azx_intel_link_power,
1883 };
1884
1885 static int azx_probe(struct pci_dev *pci,
1886                      const struct pci_device_id *pci_id)
1887 {
1888         static int dev;
1889         struct snd_card *card;
1890         struct hda_intel *hda;
1891         struct azx *chip;
1892         bool schedule_probe;
1893         int err;
1894
1895         if (dev >= SNDRV_CARDS)
1896                 return -ENODEV;
1897         if (!enable[dev]) {
1898                 dev++;
1899                 return -ENOENT;
1900         }
1901
1902         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1903                            0, &card);
1904         if (err < 0) {
1905                 dev_err(&pci->dev, "Error creating card!\n");
1906                 return err;
1907         }
1908
1909         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
1910         if (err < 0)
1911                 goto out_free;
1912         card->private_data = chip;
1913         hda = container_of(chip, struct hda_intel, chip);
1914
1915         pci_set_drvdata(pci, card);
1916
1917         err = register_vga_switcheroo(chip);
1918         if (err < 0) {
1919                 dev_err(card->dev, "Error registering VGA-switcheroo client\n");
1920                 goto out_free;
1921         }
1922
1923         if (check_hdmi_disabled(pci)) {
1924                 dev_info(card->dev, "VGA controller is disabled\n");
1925                 dev_info(card->dev, "Delaying initialization\n");
1926                 chip->disabled = true;
1927         }
1928
1929         schedule_probe = !chip->disabled;
1930
1931 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1932         if (patch[dev] && *patch[dev]) {
1933                 dev_info(card->dev, "Applying patch firmware '%s'\n",
1934                          patch[dev]);
1935                 err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
1936                                               &pci->dev, GFP_KERNEL, card,
1937                                               azx_firmware_cb);
1938                 if (err < 0)
1939                         goto out_free;
1940                 schedule_probe = false; /* continued in azx_firmware_cb() */
1941         }
1942 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
1943
1944 #ifndef CONFIG_SND_HDA_I915
1945         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
1946                 dev_err(card->dev, "Haswell must build in CONFIG_SND_HDA_I915\n");
1947 #endif
1948
1949         if (schedule_probe)
1950                 schedule_work(&hda->probe_work);
1951
1952         dev++;
1953         if (chip->disabled)
1954                 complete_all(&hda->probe_wait);
1955         return 0;
1956
1957 out_free:
1958         snd_card_free(card);
1959         return err;
1960 }
1961
1962 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1963 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
1964         [AZX_DRIVER_NVIDIA] = 8,
1965         [AZX_DRIVER_TERA] = 1,
1966 };
1967
1968 static int azx_probe_continue(struct azx *chip)
1969 {
1970         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1971         struct hdac_bus *bus = azx_bus(chip);
1972         struct pci_dev *pci = chip->pci;
1973         int dev = chip->dev_index;
1974         int err;
1975
1976         hda->probe_continued = 1;
1977
1978         /* Request display power well for the HDA controller or codec. For
1979          * Haswell/Broadwell, both the display HDA controller and codec need
1980          * this power. For other platforms, like Baytrail/Braswell, only the
1981          * display codec needs the power and it can be released after probe.
1982          */
1983         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1984                 /* HSW/BDW controllers need this power */
1985                 if (CONTROLLER_IN_GPU(pci))
1986                         hda->need_i915_power = 1;
1987
1988                 err = snd_hdac_i915_init(bus);
1989                 if (err < 0) {
1990                         /* if the controller is bound only with HDMI/DP
1991                          * (for HSW and BDW), we need to abort the probe;
1992                          * for other chips, still continue probing as other
1993                          * codecs can be on the same link.
1994                          */
1995                         if (CONTROLLER_IN_GPU(pci))
1996                                 goto out_free;
1997                         else
1998                                 goto skip_i915;
1999                 }
2000
2001                 err = snd_hdac_display_power(bus, true);
2002                 if (err < 0) {
2003                         dev_err(chip->card->dev,
2004                                 "Cannot turn on display power on i915\n");
2005                         goto i915_power_fail;
2006                 }
2007         }
2008
2009  skip_i915:
2010         err = azx_first_init(chip);
2011         if (err < 0)
2012                 goto out_free;
2013
2014 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2015         chip->beep_mode = beep_mode[dev];
2016 #endif
2017
2018         /* create codec instances */
2019         err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2020         if (err < 0)
2021                 goto out_free;
2022
2023 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2024         if (chip->fw) {
2025                 err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2026                                          chip->fw->data);
2027                 if (err < 0)
2028                         goto out_free;
2029 #ifndef CONFIG_PM
2030                 release_firmware(chip->fw); /* no longer needed */
2031                 chip->fw = NULL;
2032 #endif
2033         }
2034 #endif
2035         if ((probe_only[dev] & 1) == 0) {
2036                 err = azx_codec_configure(chip);
2037                 if (err < 0)
2038                         goto out_free;
2039         }
2040
2041         err = snd_card_register(chip->card);
2042         if (err < 0)
2043                 goto out_free;
2044
2045         chip->running = 1;
2046         azx_add_card_list(chip);
2047         snd_hda_set_power_save(&chip->bus, power_save * 1000);
2048         if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
2049                 pm_runtime_put_noidle(&pci->dev);
2050
2051 out_free:
2052         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
2053                 && !hda->need_i915_power)
2054                 snd_hdac_display_power(bus, false);
2055
2056 i915_power_fail:
2057         if (err < 0)
2058                 hda->init_failed = 1;
2059         complete_all(&hda->probe_wait);
2060         return err;
2061 }
2062
2063 static void azx_remove(struct pci_dev *pci)
2064 {
2065         struct snd_card *card = pci_get_drvdata(pci);
2066
2067         if (card)
2068                 snd_card_free(card);
2069 }
2070
2071 static void azx_shutdown(struct pci_dev *pci)
2072 {
2073         struct snd_card *card = pci_get_drvdata(pci);
2074         struct azx *chip;
2075
2076         if (!card)
2077                 return;
2078         chip = card->private_data;
2079         if (chip && chip->running)
2080                 azx_stop_chip(chip);
2081 }
2082
2083 /* PCI IDs */
2084 static const struct pci_device_id azx_ids[] = {
2085         /* CPT */
2086         { PCI_DEVICE(0x8086, 0x1c20),
2087           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2088         /* PBG */
2089         { PCI_DEVICE(0x8086, 0x1d20),
2090           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2091         /* Panther Point */
2092         { PCI_DEVICE(0x8086, 0x1e20),
2093           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2094         /* Lynx Point */
2095         { PCI_DEVICE(0x8086, 0x8c20),
2096           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2097         /* 9 Series */
2098         { PCI_DEVICE(0x8086, 0x8ca0),
2099           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2100         /* Wellsburg */
2101         { PCI_DEVICE(0x8086, 0x8d20),
2102           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2103         { PCI_DEVICE(0x8086, 0x8d21),
2104           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2105         /* Lynx Point-LP */
2106         { PCI_DEVICE(0x8086, 0x9c20),
2107           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2108         /* Lynx Point-LP */
2109         { PCI_DEVICE(0x8086, 0x9c21),
2110           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2111         /* Wildcat Point-LP */
2112         { PCI_DEVICE(0x8086, 0x9ca0),
2113           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2114         /* Sunrise Point */
2115         { PCI_DEVICE(0x8086, 0xa170),
2116           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2117         /* Sunrise Point-LP */
2118         { PCI_DEVICE(0x8086, 0x9d70),
2119           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2120         /* Haswell */
2121         { PCI_DEVICE(0x8086, 0x0a0c),
2122           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2123         { PCI_DEVICE(0x8086, 0x0c0c),
2124           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2125         { PCI_DEVICE(0x8086, 0x0d0c),
2126           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2127         /* Broadwell */
2128         { PCI_DEVICE(0x8086, 0x160c),
2129           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2130         /* 5 Series/3400 */
2131         { PCI_DEVICE(0x8086, 0x3b56),
2132           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2133         /* Poulsbo */
2134         { PCI_DEVICE(0x8086, 0x811b),
2135           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2136         /* Oaktrail */
2137         { PCI_DEVICE(0x8086, 0x080a),
2138           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2139         /* BayTrail */
2140         { PCI_DEVICE(0x8086, 0x0f04),
2141           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2142         /* Braswell */
2143         { PCI_DEVICE(0x8086, 0x2284),
2144           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2145         /* ICH6 */
2146         { PCI_DEVICE(0x8086, 0x2668),
2147           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2148         /* ICH7 */
2149         { PCI_DEVICE(0x8086, 0x27d8),
2150           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2151         /* ESB2 */
2152         { PCI_DEVICE(0x8086, 0x269a),
2153           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2154         /* ICH8 */
2155         { PCI_DEVICE(0x8086, 0x284b),
2156           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2157         /* ICH9 */
2158         { PCI_DEVICE(0x8086, 0x293e),
2159           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2160         /* ICH9 */
2161         { PCI_DEVICE(0x8086, 0x293f),
2162           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2163         /* ICH10 */
2164         { PCI_DEVICE(0x8086, 0x3a3e),
2165           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2166         /* ICH10 */
2167         { PCI_DEVICE(0x8086, 0x3a6e),
2168           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2169         /* Generic Intel */
2170         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2171           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2172           .class_mask = 0xffffff,
2173           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2174         /* ATI SB 450/600/700/800/900 */
2175         { PCI_DEVICE(0x1002, 0x437b),
2176           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2177         { PCI_DEVICE(0x1002, 0x4383),
2178           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2179         /* AMD Hudson */
2180         { PCI_DEVICE(0x1022, 0x780d),
2181           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2182         /* ATI HDMI */
2183         { PCI_DEVICE(0x1002, 0x1308),
2184           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2185         { PCI_DEVICE(0x1002, 0x793b),
2186           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2187         { PCI_DEVICE(0x1002, 0x7919),
2188           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2189         { PCI_DEVICE(0x1002, 0x960f),
2190           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2191         { PCI_DEVICE(0x1002, 0x970f),
2192           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2193         { PCI_DEVICE(0x1002, 0x9840),
2194           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2195         { PCI_DEVICE(0x1002, 0xaa00),
2196           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2197         { PCI_DEVICE(0x1002, 0xaa08),
2198           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2199         { PCI_DEVICE(0x1002, 0xaa10),
2200           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2201         { PCI_DEVICE(0x1002, 0xaa18),
2202           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2203         { PCI_DEVICE(0x1002, 0xaa20),
2204           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2205         { PCI_DEVICE(0x1002, 0xaa28),
2206           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2207         { PCI_DEVICE(0x1002, 0xaa30),
2208           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2209         { PCI_DEVICE(0x1002, 0xaa38),
2210           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2211         { PCI_DEVICE(0x1002, 0xaa40),
2212           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2213         { PCI_DEVICE(0x1002, 0xaa48),
2214           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2215         { PCI_DEVICE(0x1002, 0xaa50),
2216           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2217         { PCI_DEVICE(0x1002, 0xaa58),
2218           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2219         { PCI_DEVICE(0x1002, 0xaa60),
2220           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2221         { PCI_DEVICE(0x1002, 0xaa68),
2222           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2223         { PCI_DEVICE(0x1002, 0xaa80),
2224           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2225         { PCI_DEVICE(0x1002, 0xaa88),
2226           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2227         { PCI_DEVICE(0x1002, 0xaa90),
2228           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2229         { PCI_DEVICE(0x1002, 0xaa98),
2230           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2231         { PCI_DEVICE(0x1002, 0x9902),
2232           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2233         { PCI_DEVICE(0x1002, 0xaaa0),
2234           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2235         { PCI_DEVICE(0x1002, 0xaaa8),
2236           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2237         { PCI_DEVICE(0x1002, 0xaab0),
2238           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2239         { PCI_DEVICE(0x1002, 0xaac8),
2240           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2241         /* VIA VT8251/VT8237A */
2242         { PCI_DEVICE(0x1106, 0x3288),
2243           .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
2244         /* VIA GFX VT7122/VX900 */
2245         { PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2246         /* VIA GFX VT6122/VX11 */
2247         { PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2248         /* SIS966 */
2249         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2250         /* ULI M5461 */
2251         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2252         /* NVIDIA MCP */
2253         { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2254           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2255           .class_mask = 0xffffff,
2256           .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2257         /* Teradici */
2258         { PCI_DEVICE(0x6549, 0x1200),
2259           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2260         { PCI_DEVICE(0x6549, 0x2200),
2261           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2262         /* Creative X-Fi (CA0110-IBG) */
2263         /* CTHDA chips */
2264         { PCI_DEVICE(0x1102, 0x0010),
2265           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2266         { PCI_DEVICE(0x1102, 0x0012),
2267           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2268 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2269         /* the following entry conflicts with snd-ctxfi driver,
2270          * as ctxfi driver mutates from HD-audio to native mode with
2271          * a special command sequence.
2272          */
2273         { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2274           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2275           .class_mask = 0xffffff,
2276           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2277           AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
2278 #else
2279         /* this entry seems still valid -- i.e. without emu20kx chip */
2280         { PCI_DEVICE(0x1102, 0x0009),
2281           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2282           AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
2283 #endif
2284         /* CM8888 */
2285         { PCI_DEVICE(0x13f6, 0x5011),
2286           .driver_data = AZX_DRIVER_CMEDIA |
2287           AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2288         /* Vortex86MX */
2289         { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2290         /* VMware HDAudio */
2291         { PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2292         /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2293         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2294           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2295           .class_mask = 0xffffff,
2296           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2297         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2298           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2299           .class_mask = 0xffffff,
2300           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2301         { 0, }
2302 };
2303 MODULE_DEVICE_TABLE(pci, azx_ids);
2304
2305 /* pci_driver definition */
2306 static struct pci_driver azx_driver = {
2307         .name = KBUILD_MODNAME,
2308         .id_table = azx_ids,
2309         .probe = azx_probe,
2310         .remove = azx_remove,
2311         .shutdown = azx_shutdown,
2312         .driver = {
2313                 .pm = AZX_PM_OPS,
2314         },
2315 };
2316
2317 module_pci_driver(azx_driver);