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Linux/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_HDA_CGCTL  0x48
 94 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
 95 #define INTEL_SCH_HDA_DEVC      0x78
 96 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
 97 
 98 /* Define IN stream 0 FIFO size offset in VIA controller */
 99 #define VIA_IN_STREAM0_FIFO_SIZE_OFFSET 0x90
100 /* Define VIA HD Audio Device ID*/
101 #define VIA_HDAC_DEVICE_ID              0x3288
102 
103 /* max number of SDs */
104 /* ICH, ATI and VIA have 4 playback and 4 capture */
105 #define ICH6_NUM_CAPTURE        4
106 #define ICH6_NUM_PLAYBACK       4
107 
108 /* ULI has 6 playback and 5 capture */
109 #define ULI_NUM_CAPTURE         5
110 #define ULI_NUM_PLAYBACK        6
111 
112 /* ATI HDMI may have up to 8 playbacks and 0 capture */
113 #define ATIHDMI_NUM_CAPTURE     0
114 #define ATIHDMI_NUM_PLAYBACK    8
115 
116 /* TERA has 4 playback and 3 capture */
117 #define TERA_NUM_CAPTURE        3
118 #define TERA_NUM_PLAYBACK       4
119 
120 
121 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
122 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
123 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
124 static char *model[SNDRV_CARDS];
125 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
126 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
127 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
128 static int probe_only[SNDRV_CARDS];
129 static int jackpoll_ms[SNDRV_CARDS];
130 static bool single_cmd;
131 static int enable_msi = -1;
132 #ifdef CONFIG_SND_HDA_PATCH_LOADER
133 static char *patch[SNDRV_CARDS];
134 #endif
135 #ifdef CONFIG_SND_HDA_INPUT_BEEP
136 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
137                                         CONFIG_SND_HDA_INPUT_BEEP_MODE};
138 #endif
139 
140 module_param_array(index, int, NULL, 0444);
141 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
142 module_param_array(id, charp, NULL, 0444);
143 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
144 module_param_array(enable, bool, NULL, 0444);
145 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
146 module_param_array(model, charp, NULL, 0444);
147 MODULE_PARM_DESC(model, "Use the given board model.");
148 module_param_array(position_fix, int, NULL, 0444);
149 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
150                  "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
151 module_param_array(bdl_pos_adj, int, NULL, 0644);
152 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
153 module_param_array(probe_mask, int, NULL, 0444);
154 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
155 module_param_array(probe_only, int, NULL, 0444);
156 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
157 module_param_array(jackpoll_ms, int, NULL, 0444);
158 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
159 module_param(single_cmd, bool, 0444);
160 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
161                  "(for debugging only).");
162 module_param(enable_msi, bint, 0444);
163 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
164 #ifdef CONFIG_SND_HDA_PATCH_LOADER
165 module_param_array(patch, charp, NULL, 0444);
166 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
167 #endif
168 #ifdef CONFIG_SND_HDA_INPUT_BEEP
169 module_param_array(beep_mode, bool, NULL, 0444);
170 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
171                             "(0=off, 1=on) (default=1).");
172 #endif
173 
174 #ifdef CONFIG_PM
175 static int param_set_xint(const char *val, const struct kernel_param *kp);
176 static const struct kernel_param_ops param_ops_xint = {
177         .set = param_set_xint,
178         .get = param_get_int,
179 };
180 #define param_check_xint param_check_int
181 
182 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
183 module_param(power_save, xint, 0644);
184 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
185                  "(in second, 0 = disable).");
186 
187 /* reset the HD-audio controller in power save mode.
188  * this may give more power-saving, but will take longer time to
189  * wake up.
190  */
191 static bool power_save_controller = 1;
192 module_param(power_save_controller, bool, 0644);
193 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
194 #else
195 #define power_save      0
196 #endif /* CONFIG_PM */
197 
198 static int align_buffer_size = -1;
199 module_param(align_buffer_size, bint, 0644);
200 MODULE_PARM_DESC(align_buffer_size,
201                 "Force buffer and period sizes to be multiple of 128 bytes.");
202 
203 #ifdef CONFIG_X86
204 static int hda_snoop = -1;
205 module_param_named(snoop, hda_snoop, bint, 0444);
206 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
207 #else
208 #define hda_snoop               true
209 #endif
210 
211 
212 MODULE_LICENSE("GPL");
213 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
214                          "{Intel, ICH6M},"
215                          "{Intel, ICH7},"
216                          "{Intel, ESB2},"
217                          "{Intel, ICH8},"
218                          "{Intel, ICH9},"
219                          "{Intel, ICH10},"
220                          "{Intel, PCH},"
221                          "{Intel, CPT},"
222                          "{Intel, PPT},"
223                          "{Intel, LPT},"
224                          "{Intel, LPT_LP},"
225                          "{Intel, WPT_LP},"
226                          "{Intel, SPT},"
227                          "{Intel, SPT_LP},"
228                          "{Intel, HPT},"
229                          "{Intel, PBG},"
230                          "{Intel, SCH},"
231                          "{ATI, SB450},"
232                          "{ATI, SB600},"
233                          "{ATI, RS600},"
234                          "{ATI, RS690},"
235                          "{ATI, RS780},"
236                          "{ATI, R600},"
237                          "{ATI, RV630},"
238                          "{ATI, RV610},"
239                          "{ATI, RV670},"
240                          "{ATI, RV635},"
241                          "{ATI, RV620},"
242                          "{ATI, RV770},"
243                          "{VIA, VT8251},"
244                          "{VIA, VT8237A},"
245                          "{SiS, SIS966},"
246                          "{ULI, M5461}}");
247 MODULE_DESCRIPTION("Intel HDA driver");
248 
249 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
250 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
251 #define SUPPORT_VGA_SWITCHEROO
252 #endif
253 #endif
254 
255 
256 /*
257  */
258 
259 /* driver types */
260 enum {
261         AZX_DRIVER_ICH,
262         AZX_DRIVER_PCH,
263         AZX_DRIVER_SCH,
264         AZX_DRIVER_HDMI,
265         AZX_DRIVER_ATI,
266         AZX_DRIVER_ATIHDMI,
267         AZX_DRIVER_ATIHDMI_NS,
268         AZX_DRIVER_VIA,
269         AZX_DRIVER_SIS,
270         AZX_DRIVER_ULI,
271         AZX_DRIVER_NVIDIA,
272         AZX_DRIVER_TERA,
273         AZX_DRIVER_CTX,
274         AZX_DRIVER_CTHDA,
275         AZX_DRIVER_CMEDIA,
276         AZX_DRIVER_GENERIC,
277         AZX_NUM_DRIVERS, /* keep this as last entry */
278 };
279 
280 #define azx_get_snoop_type(chip) \
281         (((chip)->driver_caps & AZX_DCAPS_SNOOP_MASK) >> 10)
282 #define AZX_DCAPS_SNOOP_TYPE(type) ((AZX_SNOOP_TYPE_ ## type) << 10)
283 
284 /* quirks for old Intel chipsets */
285 #define AZX_DCAPS_INTEL_ICH \
286         (AZX_DCAPS_OLD_SSYNC | AZX_DCAPS_NO_ALIGN_BUFSIZE)
287 
288 /* quirks for Intel PCH */
289 #define AZX_DCAPS_INTEL_PCH_BASE \
290         (AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
291          AZX_DCAPS_SNOOP_TYPE(SCH))
292 
293 /* PCH up to IVB; no runtime PM */
294 #define AZX_DCAPS_INTEL_PCH_NOPM \
295         (AZX_DCAPS_INTEL_PCH_BASE)
296 
297 /* PCH for HSW/BDW; with runtime PM */
298 #define AZX_DCAPS_INTEL_PCH \
299         (AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
300 
301 /* HSW HDMI */
302 #define AZX_DCAPS_INTEL_HASWELL \
303         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
304          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
305          AZX_DCAPS_SNOOP_TYPE(SCH))
306 
307 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
308 #define AZX_DCAPS_INTEL_BROADWELL \
309         (/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
310          AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_POWERWELL |\
311          AZX_DCAPS_SNOOP_TYPE(SCH))
312 
313 #define AZX_DCAPS_INTEL_BAYTRAIL \
314         (AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_I915_POWERWELL)
315 
316 #define AZX_DCAPS_INTEL_BRASWELL \
317         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_I915_POWERWELL)
318 
319 #define AZX_DCAPS_INTEL_SKYLAKE \
320         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
321          AZX_DCAPS_I915_POWERWELL)
322 
323 #define AZX_DCAPS_INTEL_BROXTON \
324         (AZX_DCAPS_INTEL_PCH | AZX_DCAPS_SEPARATE_STREAM_TAG |\
325          AZX_DCAPS_I915_POWERWELL)
326 
327 /* quirks for ATI SB / AMD Hudson */
328 #define AZX_DCAPS_PRESET_ATI_SB \
329         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
330          AZX_DCAPS_SNOOP_TYPE(ATI))
331 
332 /* quirks for ATI/AMD HDMI */
333 #define AZX_DCAPS_PRESET_ATI_HDMI \
334         (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
335          AZX_DCAPS_NO_MSI64)
336 
337 /* quirks for ATI HDMI with snoop off */
338 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
339         (AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
340 
341 /* quirks for Nvidia */
342 #define AZX_DCAPS_PRESET_NVIDIA \
343         (AZX_DCAPS_NO_MSI | /*AZX_DCAPS_ALIGN_BUFSIZE |*/ \
344          AZX_DCAPS_NO_64BIT | AZX_DCAPS_CORBRP_SELF_CLEAR |\
345          AZX_DCAPS_SNOOP_TYPE(NVIDIA))
346 
347 #define AZX_DCAPS_PRESET_CTHDA \
348         (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
349          AZX_DCAPS_NO_64BIT |\
350          AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
351 
352 /*
353  * vga_switcheroo support
354  */
355 #ifdef SUPPORT_VGA_SWITCHEROO
356 #define use_vga_switcheroo(chip)        ((chip)->use_vga_switcheroo)
357 #else
358 #define use_vga_switcheroo(chip)        0
359 #endif
360 
361 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
362                                         ((pci)->device == 0x0c0c) || \
363                                         ((pci)->device == 0x0d0c) || \
364                                         ((pci)->device == 0x160c))
365 
366 #define IS_SKL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa170)
367 #define IS_SKL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d70)
368 #define IS_KBL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa171)
369 #define IS_KBL_LP(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9d71)
370 #define IS_KBL_H(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa2f0)
371 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
372 #define IS_SKL_PLUS(pci) (IS_SKL(pci) || IS_SKL_LP(pci) || IS_BXT(pci)) || \
373                         IS_KBL(pci) || IS_KBL_LP(pci) || IS_KBL_H(pci)
374 
375 static char *driver_short_names[] = {
376         [AZX_DRIVER_ICH] = "HDA Intel",
377         [AZX_DRIVER_PCH] = "HDA Intel PCH",
378         [AZX_DRIVER_SCH] = "HDA Intel MID",
379         [AZX_DRIVER_HDMI] = "HDA Intel HDMI",
380         [AZX_DRIVER_ATI] = "HDA ATI SB",
381         [AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
382         [AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
383         [AZX_DRIVER_VIA] = "HDA VIA VT82xx",
384         [AZX_DRIVER_SIS] = "HDA SIS966",
385         [AZX_DRIVER_ULI] = "HDA ULI M5461",
386         [AZX_DRIVER_NVIDIA] = "HDA NVidia",
387         [AZX_DRIVER_TERA] = "HDA Teradici", 
388         [AZX_DRIVER_CTX] = "HDA Creative", 
389         [AZX_DRIVER_CTHDA] = "HDA Creative",
390         [AZX_DRIVER_CMEDIA] = "HDA C-Media",
391         [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
392 };
393 
394 #ifdef CONFIG_X86
395 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
396 {
397         int pages;
398 
399         if (azx_snoop(chip))
400                 return;
401         if (!dmab || !dmab->area || !dmab->bytes)
402                 return;
403 
404 #ifdef CONFIG_SND_DMA_SGBUF
405         if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
406                 struct snd_sg_buf *sgbuf = dmab->private_data;
407                 if (chip->driver_type == AZX_DRIVER_CMEDIA)
408                         return; /* deal with only CORB/RIRB buffers */
409                 if (on)
410                         set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
411                 else
412                         set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
413                 return;
414         }
415 #endif
416 
417         pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
418         if (on)
419                 set_memory_wc((unsigned long)dmab->area, pages);
420         else
421                 set_memory_wb((unsigned long)dmab->area, pages);
422 }
423 
424 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
425                                  bool on)
426 {
427         __mark_pages_wc(chip, buf, on);
428 }
429 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
430                                    struct snd_pcm_substream *substream, bool on)
431 {
432         if (azx_dev->wc_marked != on) {
433                 __mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
434                 azx_dev->wc_marked = on;
435         }
436 }
437 #else
438 /* NOP for other archs */
439 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
440                                  bool on)
441 {
442 }
443 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
444                                    struct snd_pcm_substream *substream, bool on)
445 {
446 }
447 #endif
448 
449 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
450 
451 /*
452  * initialize the PCI registers
453  */
454 /* update bits in a PCI register byte */
455 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
456                             unsigned char mask, unsigned char val)
457 {
458         unsigned char data;
459 
460         pci_read_config_byte(pci, reg, &data);
461         data &= ~mask;
462         data |= (val & mask);
463         pci_write_config_byte(pci, reg, data);
464 }
465 
466 static void azx_init_pci(struct azx *chip)
467 {
468         int snoop_type = azx_get_snoop_type(chip);
469 
470         /* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
471          * TCSEL == Traffic Class Select Register, which sets PCI express QOS
472          * Ensuring these bits are 0 clears playback static on some HD Audio
473          * codecs.
474          * The PCI register TCSEL is defined in the Intel manuals.
475          */
476         if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
477                 dev_dbg(chip->card->dev, "Clearing TCSEL\n");
478                 update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
479         }
480 
481         /* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
482          * we need to enable snoop.
483          */
484         if (snoop_type == AZX_SNOOP_TYPE_ATI) {
485                 dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
486                         azx_snoop(chip));
487                 update_pci_byte(chip->pci,
488                                 ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
489                                 azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
490         }
491 
492         /* For NVIDIA HDA, enable snoop */
493         if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
494                 dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
495                         azx_snoop(chip));
496                 update_pci_byte(chip->pci,
497                                 NVIDIA_HDA_TRANSREG_ADDR,
498                                 0x0f, NVIDIA_HDA_ENABLE_COHBITS);
499                 update_pci_byte(chip->pci,
500                                 NVIDIA_HDA_ISTRM_COH,
501                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
502                 update_pci_byte(chip->pci,
503                                 NVIDIA_HDA_OSTRM_COH,
504                                 0x01, NVIDIA_HDA_ENABLE_COHBIT);
505         }
506 
507         /* Enable SCH/PCH snoop if needed */
508         if (snoop_type == AZX_SNOOP_TYPE_SCH) {
509                 unsigned short snoop;
510                 pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
511                 if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
512                     (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
513                         snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
514                         if (!azx_snoop(chip))
515                                 snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
516                         pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
517                         pci_read_config_word(chip->pci,
518                                 INTEL_SCH_HDA_DEVC, &snoop);
519                 }
520                 dev_dbg(chip->card->dev, "SCH snoop: %s\n",
521                         (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
522                         "Disabled" : "Enabled");
523         }
524 }
525 
526 /*
527  * In BXT-P A0, HD-Audio DMA requests is later than expected,
528  * and makes an audio stream sensitive to system latencies when
529  * 24/32 bits are playing.
530  * Adjusting threshold of DMA fifo to force the DMA request
531  * sooner to improve latency tolerance at the expense of power.
532  */
533 static void bxt_reduce_dma_latency(struct azx *chip)
534 {
535         u32 val;
536 
537         val = azx_readl(chip, SKL_EM4L);
538         val &= (0x3 << 20);
539         azx_writel(chip, SKL_EM4L, val);
540 }
541 
542 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
543 {
544         struct hdac_bus *bus = azx_bus(chip);
545         struct pci_dev *pci = chip->pci;
546         u32 val;
547 
548         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
549                 snd_hdac_set_codec_wakeup(bus, true);
550         if (IS_SKL_PLUS(pci)) {
551                 pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
552                 val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
553                 pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
554         }
555         azx_init_chip(chip, full_reset);
556         if (IS_SKL_PLUS(pci)) {
557                 pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
558                 val = val | INTEL_HDA_CGCTL_MISCBDCGE;
559                 pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
560         }
561         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
562                 snd_hdac_set_codec_wakeup(bus, false);
563 
564         /* reduce dma latency to avoid noise */
565         if (IS_BXT(pci))
566                 bxt_reduce_dma_latency(chip);
567 }
568 
569 /* calculate runtime delay from LPIB */
570 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
571                                    unsigned int pos)
572 {
573         struct snd_pcm_substream *substream = azx_dev->core.substream;
574         int stream = substream->stream;
575         unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
576         int delay;
577 
578         if (stream == SNDRV_PCM_STREAM_PLAYBACK)
579                 delay = pos - lpib_pos;
580         else
581                 delay = lpib_pos - pos;
582         if (delay < 0) {
583                 if (delay >= azx_dev->core.delay_negative_threshold)
584                         delay = 0;
585                 else
586                         delay += azx_dev->core.bufsize;
587         }
588 
589         if (delay >= azx_dev->core.period_bytes) {
590                 dev_info(chip->card->dev,
591                          "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
592                          delay, azx_dev->core.period_bytes);
593                 delay = 0;
594                 chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
595                 chip->get_delay[stream] = NULL;
596         }
597 
598         return bytes_to_frames(substream->runtime, delay);
599 }
600 
601 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
602 
603 /* called from IRQ */
604 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
605 {
606         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
607         int ok;
608 
609         ok = azx_position_ok(chip, azx_dev);
610         if (ok == 1) {
611                 azx_dev->irq_pending = 0;
612                 return ok;
613         } else if (ok == 0) {
614                 /* bogus IRQ, process it later */
615                 azx_dev->irq_pending = 1;
616                 schedule_work(&hda->irq_pending_work);
617         }
618         return 0;
619 }
620 
621 /* Enable/disable i915 display power for the link */
622 static int azx_intel_link_power(struct azx *chip, bool enable)
623 {
624         struct hdac_bus *bus = azx_bus(chip);
625 
626         return snd_hdac_display_power(bus, enable);
627 }
628 
629 /*
630  * Check whether the current DMA position is acceptable for updating
631  * periods.  Returns non-zero if it's OK.
632  *
633  * Many HD-audio controllers appear pretty inaccurate about
634  * the update-IRQ timing.  The IRQ is issued before actually the
635  * data is processed.  So, we need to process it afterwords in a
636  * workqueue.
637  */
638 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
639 {
640         struct snd_pcm_substream *substream = azx_dev->core.substream;
641         int stream = substream->stream;
642         u32 wallclk;
643         unsigned int pos;
644 
645         wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
646         if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
647                 return -1;      /* bogus (too early) interrupt */
648 
649         if (chip->get_position[stream])
650                 pos = chip->get_position[stream](chip, azx_dev);
651         else { /* use the position buffer as default */
652                 pos = azx_get_pos_posbuf(chip, azx_dev);
653                 if (!pos || pos == (u32)-1) {
654                         dev_info(chip->card->dev,
655                                  "Invalid position buffer, using LPIB read method instead.\n");
656                         chip->get_position[stream] = azx_get_pos_lpib;
657                         if (chip->get_position[0] == azx_get_pos_lpib &&
658                             chip->get_position[1] == azx_get_pos_lpib)
659                                 azx_bus(chip)->use_posbuf = false;
660                         pos = azx_get_pos_lpib(chip, azx_dev);
661                         chip->get_delay[stream] = NULL;
662                 } else {
663                         chip->get_position[stream] = azx_get_pos_posbuf;
664                         if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
665                                 chip->get_delay[stream] = azx_get_delay_from_lpib;
666                 }
667         }
668 
669         if (pos >= azx_dev->core.bufsize)
670                 pos = 0;
671 
672         if (WARN_ONCE(!azx_dev->core.period_bytes,
673                       "hda-intel: zero azx_dev->period_bytes"))
674                 return -1; /* this shouldn't happen! */
675         if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
676             pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
677                 /* NG - it's below the first next period boundary */
678                 return chip->bdl_pos_adj ? 0 : -1;
679         azx_dev->core.start_wallclk += wallclk;
680         return 1; /* OK, it's fine */
681 }
682 
683 /*
684  * The work for pending PCM period updates.
685  */
686 static void azx_irq_pending_work(struct work_struct *work)
687 {
688         struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
689         struct azx *chip = &hda->chip;
690         struct hdac_bus *bus = azx_bus(chip);
691         struct hdac_stream *s;
692         int pending, ok;
693 
694         if (!hda->irq_pending_warned) {
695                 dev_info(chip->card->dev,
696                          "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
697                          chip->card->number);
698                 hda->irq_pending_warned = 1;
699         }
700 
701         for (;;) {
702                 pending = 0;
703                 spin_lock_irq(&bus->reg_lock);
704                 list_for_each_entry(s, &bus->stream_list, list) {
705                         struct azx_dev *azx_dev = stream_to_azx_dev(s);
706                         if (!azx_dev->irq_pending ||
707                             !s->substream ||
708                             !s->running)
709                                 continue;
710                         ok = azx_position_ok(chip, azx_dev);
711                         if (ok > 0) {
712                                 azx_dev->irq_pending = 0;
713                                 spin_unlock(&bus->reg_lock);
714                                 snd_pcm_period_elapsed(s->substream);
715                                 spin_lock(&bus->reg_lock);
716                         } else if (ok < 0) {
717                                 pending = 0;    /* too early */
718                         } else
719                                 pending++;
720                 }
721                 spin_unlock_irq(&bus->reg_lock);
722                 if (!pending)
723                         return;
724                 msleep(1);
725         }
726 }
727 
728 /* clear irq_pending flags and assure no on-going workq */
729 static void azx_clear_irq_pending(struct azx *chip)
730 {
731         struct hdac_bus *bus = azx_bus(chip);
732         struct hdac_stream *s;
733 
734         spin_lock_irq(&bus->reg_lock);
735         list_for_each_entry(s, &bus->stream_list, list) {
736                 struct azx_dev *azx_dev = stream_to_azx_dev(s);
737                 azx_dev->irq_pending = 0;
738         }
739         spin_unlock_irq(&bus->reg_lock);
740 }
741 
742 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
743 {
744         struct hdac_bus *bus = azx_bus(chip);
745 
746         if (request_irq(chip->pci->irq, azx_interrupt,
747                         chip->msi ? 0 : IRQF_SHARED,
748                         chip->card->irq_descr, chip)) {
749                 dev_err(chip->card->dev,
750                         "unable to grab IRQ %d, disabling device\n",
751                         chip->pci->irq);
752                 if (do_disconnect)
753                         snd_card_disconnect(chip->card);
754                 return -1;
755         }
756         bus->irq = chip->pci->irq;
757         pci_intx(chip->pci, !chip->msi);
758         return 0;
759 }
760 
761 /* get the current DMA position with correction on VIA chips */
762 static unsigned int azx_via_get_position(struct azx *chip,
763                                          struct azx_dev *azx_dev)
764 {
765         unsigned int link_pos, mini_pos, bound_pos;
766         unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
767         unsigned int fifo_size;
768 
769         link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
770         if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
771                 /* Playback, no problem using link position */
772                 return link_pos;
773         }
774 
775         /* Capture */
776         /* For new chipset,
777          * use mod to get the DMA position just like old chipset
778          */
779         mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
780         mod_dma_pos %= azx_dev->core.period_bytes;
781 
782         /* azx_dev->fifo_size can't get FIFO size of in stream.
783          * Get from base address + offset.
784          */
785         fifo_size = readw(azx_bus(chip)->remap_addr +
786                           VIA_IN_STREAM0_FIFO_SIZE_OFFSET);
787 
788         if (azx_dev->insufficient) {
789                 /* Link position never gather than FIFO size */
790                 if (link_pos <= fifo_size)
791                         return 0;
792 
793                 azx_dev->insufficient = 0;
794         }
795 
796         if (link_pos <= fifo_size)
797                 mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
798         else
799                 mini_pos = link_pos - fifo_size;
800 
801         /* Find nearest previous boudary */
802         mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
803         mod_link_pos = link_pos % azx_dev->core.period_bytes;
804         if (mod_link_pos >= fifo_size)
805                 bound_pos = link_pos - mod_link_pos;
806         else if (mod_dma_pos >= mod_mini_pos)
807                 bound_pos = mini_pos - mod_mini_pos;
808         else {
809                 bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
810                 if (bound_pos >= azx_dev->core.bufsize)
811                         bound_pos = 0;
812         }
813 
814         /* Calculate real DMA position we want */
815         return bound_pos + mod_dma_pos;
816 }
817 
818 #ifdef CONFIG_PM
819 static DEFINE_MUTEX(card_list_lock);
820 static LIST_HEAD(card_list);
821 
822 static void azx_add_card_list(struct azx *chip)
823 {
824         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
825         mutex_lock(&card_list_lock);
826         list_add(&hda->list, &card_list);
827         mutex_unlock(&card_list_lock);
828 }
829 
830 static void azx_del_card_list(struct azx *chip)
831 {
832         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
833         mutex_lock(&card_list_lock);
834         list_del_init(&hda->list);
835         mutex_unlock(&card_list_lock);
836 }
837 
838 /* trigger power-save check at writing parameter */
839 static int param_set_xint(const char *val, const struct kernel_param *kp)
840 {
841         struct hda_intel *hda;
842         struct azx *chip;
843         int prev = power_save;
844         int ret = param_set_int(val, kp);
845 
846         if (ret || prev == power_save)
847                 return ret;
848 
849         mutex_lock(&card_list_lock);
850         list_for_each_entry(hda, &card_list, list) {
851                 chip = &hda->chip;
852                 if (!hda->probe_continued || chip->disabled)
853                         continue;
854                 snd_hda_set_power_save(&chip->bus, power_save * 1000);
855         }
856         mutex_unlock(&card_list_lock);
857         return 0;
858 }
859 #else
860 #define azx_add_card_list(chip) /* NOP */
861 #define azx_del_card_list(chip) /* NOP */
862 #endif /* CONFIG_PM */
863 
864 #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
865 /*
866  * power management
867  */
868 static int azx_suspend(struct device *dev)
869 {
870         struct snd_card *card = dev_get_drvdata(dev);
871         struct azx *chip;
872         struct hda_intel *hda;
873         struct hdac_bus *bus;
874 
875         if (!card)
876                 return 0;
877 
878         chip = card->private_data;
879         hda = container_of(chip, struct hda_intel, chip);
880         if (chip->disabled || hda->init_failed || !chip->running)
881                 return 0;
882 
883         bus = azx_bus(chip);
884         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
885         azx_clear_irq_pending(chip);
886         azx_stop_chip(chip);
887         azx_enter_link_reset(chip);
888         if (bus->irq >= 0) {
889                 free_irq(bus->irq, chip);
890                 bus->irq = -1;
891         }
892 
893         if (chip->msi)
894                 pci_disable_msi(chip->pci);
895         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
896                 && hda->need_i915_power)
897                 snd_hdac_display_power(bus, false);
898 
899         trace_azx_suspend(chip);
900         return 0;
901 }
902 
903 static int azx_resume(struct device *dev)
904 {
905         struct pci_dev *pci = to_pci_dev(dev);
906         struct snd_card *card = dev_get_drvdata(dev);
907         struct azx *chip;
908         struct hda_intel *hda;
909 
910         if (!card)
911                 return 0;
912 
913         chip = card->private_data;
914         hda = container_of(chip, struct hda_intel, chip);
915         if (chip->disabled || hda->init_failed || !chip->running)
916                 return 0;
917 
918         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
919                 && hda->need_i915_power) {
920                 snd_hdac_display_power(azx_bus(chip), true);
921                 snd_hdac_i915_set_bclk(azx_bus(chip));
922         }
923         if (chip->msi)
924                 if (pci_enable_msi(pci) < 0)
925                         chip->msi = 0;
926         if (azx_acquire_irq(chip, 1) < 0)
927                 return -EIO;
928         azx_init_pci(chip);
929 
930         hda_intel_init_chip(chip, true);
931 
932         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
933 
934         trace_azx_resume(chip);
935         return 0;
936 }
937 #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
938 
939 #ifdef CONFIG_PM_SLEEP
940 /* put codec down to D3 at hibernation for Intel SKL+;
941  * otherwise BIOS may still access the codec and screw up the driver
942  */
943 static int azx_freeze_noirq(struct device *dev)
944 {
945         struct pci_dev *pci = to_pci_dev(dev);
946 
947         if (IS_SKL_PLUS(pci))
948                 pci_set_power_state(pci, PCI_D3hot);
949 
950         return 0;
951 }
952 
953 static int azx_thaw_noirq(struct device *dev)
954 {
955         struct pci_dev *pci = to_pci_dev(dev);
956 
957         if (IS_SKL_PLUS(pci))
958                 pci_set_power_state(pci, PCI_D0);
959 
960         return 0;
961 }
962 #endif /* CONFIG_PM_SLEEP */
963 
964 #ifdef CONFIG_PM
965 static int azx_runtime_suspend(struct device *dev)
966 {
967         struct snd_card *card = dev_get_drvdata(dev);
968         struct azx *chip;
969         struct hda_intel *hda;
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         /* enable controller wake up event */
983         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
984                   STATESTS_INT_MASK);
985 
986         azx_stop_chip(chip);
987         azx_enter_link_reset(chip);
988         azx_clear_irq_pending(chip);
989         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
990                 && hda->need_i915_power)
991                 snd_hdac_display_power(azx_bus(chip), false);
992 
993         trace_azx_runtime_suspend(chip);
994         return 0;
995 }
996 
997 static int azx_runtime_resume(struct device *dev)
998 {
999         struct snd_card *card = dev_get_drvdata(dev);
1000         struct azx *chip;
1001         struct hda_intel *hda;
1002         struct hdac_bus *bus;
1003         struct hda_codec *codec;
1004         int status;
1005 
1006         if (!card)
1007                 return 0;
1008 
1009         chip = card->private_data;
1010         hda = container_of(chip, struct hda_intel, chip);
1011         if (chip->disabled || hda->init_failed)
1012                 return 0;
1013 
1014         if (!azx_has_pm_runtime(chip))
1015                 return 0;
1016 
1017         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1018                 bus = azx_bus(chip);
1019                 if (hda->need_i915_power) {
1020                         snd_hdac_display_power(bus, true);
1021                         snd_hdac_i915_set_bclk(bus);
1022                 } else {
1023                         /* toggle codec wakeup bit for STATESTS read */
1024                         snd_hdac_set_codec_wakeup(bus, true);
1025                         snd_hdac_set_codec_wakeup(bus, false);
1026                 }
1027         }
1028 
1029         /* Read STATESTS before controller reset */
1030         status = azx_readw(chip, STATESTS);
1031 
1032         azx_init_pci(chip);
1033         hda_intel_init_chip(chip, true);
1034 
1035         if (status) {
1036                 list_for_each_codec(codec, &chip->bus)
1037                         if (status & (1 << codec->addr))
1038                                 schedule_delayed_work(&codec->jackpoll_work,
1039                                                       codec->jackpoll_interval);
1040         }
1041 
1042         /* disable controller Wake Up event*/
1043         azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1044                         ~STATESTS_INT_MASK);
1045 
1046         trace_azx_runtime_resume(chip);
1047         return 0;
1048 }
1049 
1050 static int azx_runtime_idle(struct device *dev)
1051 {
1052         struct snd_card *card = dev_get_drvdata(dev);
1053         struct azx *chip;
1054         struct hda_intel *hda;
1055 
1056         if (!card)
1057                 return 0;
1058 
1059         chip = card->private_data;
1060         hda = container_of(chip, struct hda_intel, chip);
1061         if (chip->disabled || hda->init_failed)
1062                 return 0;
1063 
1064         if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1065             azx_bus(chip)->codec_powered || !chip->running)
1066                 return -EBUSY;
1067 
1068         return 0;
1069 }
1070 
1071 static const struct dev_pm_ops azx_pm = {
1072         SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1073 #ifdef CONFIG_PM_SLEEP
1074         .freeze_noirq = azx_freeze_noirq,
1075         .thaw_noirq = azx_thaw_noirq,
1076 #endif
1077         SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1078 };
1079 
1080 #define AZX_PM_OPS      &azx_pm
1081 #else
1082 #define AZX_PM_OPS      NULL
1083 #endif /* CONFIG_PM */
1084 
1085 
1086 static int azx_probe_continue(struct azx *chip);
1087 
1088 #ifdef SUPPORT_VGA_SWITCHEROO
1089 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1090 
1091 static void azx_vs_set_state(struct pci_dev *pci,
1092                              enum vga_switcheroo_state state)
1093 {
1094         struct snd_card *card = pci_get_drvdata(pci);
1095         struct azx *chip = card->private_data;
1096         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1097         bool disabled;
1098 
1099         wait_for_completion(&hda->probe_wait);
1100         if (hda->init_failed)
1101                 return;
1102 
1103         disabled = (state == VGA_SWITCHEROO_OFF);
1104         if (chip->disabled == disabled)
1105                 return;
1106 
1107         if (!hda->probe_continued) {
1108                 chip->disabled = disabled;
1109                 if (!disabled) {
1110                         dev_info(chip->card->dev,
1111                                  "Start delayed initialization\n");
1112                         if (azx_probe_continue(chip) < 0) {
1113                                 dev_err(chip->card->dev, "initialization error\n");
1114                                 hda->init_failed = true;
1115                         }
1116                 }
1117         } else {
1118                 dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1119                          disabled ? "Disabling" : "Enabling");
1120                 if (disabled) {
1121                         pm_runtime_put_sync_suspend(card->dev);
1122                         azx_suspend(card->dev);
1123                         /* when we get suspended by vga_switcheroo we end up in D3cold,
1124                          * however we have no ACPI handle, so pci/acpi can't put us there,
1125                          * put ourselves there */
1126                         pci->current_state = PCI_D3cold;
1127                         chip->disabled = true;
1128                         if (snd_hda_lock_devices(&chip->bus))
1129                                 dev_warn(chip->card->dev,
1130                                          "Cannot lock devices!\n");
1131                 } else {
1132                         snd_hda_unlock_devices(&chip->bus);
1133                         pm_runtime_get_noresume(card->dev);
1134                         chip->disabled = false;
1135                         azx_resume(card->dev);
1136                 }
1137         }
1138 }
1139 
1140 static bool azx_vs_can_switch(struct pci_dev *pci)
1141 {
1142         struct snd_card *card = pci_get_drvdata(pci);
1143         struct azx *chip = card->private_data;
1144         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1145 
1146         wait_for_completion(&hda->probe_wait);
1147         if (hda->init_failed)
1148                 return false;
1149         if (chip->disabled || !hda->probe_continued)
1150                 return true;
1151         if (snd_hda_lock_devices(&chip->bus))
1152                 return false;
1153         snd_hda_unlock_devices(&chip->bus);
1154         return true;
1155 }
1156 
1157 static void init_vga_switcheroo(struct azx *chip)
1158 {
1159         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1160         struct pci_dev *p = get_bound_vga(chip->pci);
1161         if (p) {
1162                 dev_info(chip->card->dev,
1163                          "Handle vga_switcheroo audio client\n");
1164                 hda->use_vga_switcheroo = 1;
1165                 pci_dev_put(p);
1166         }
1167 }
1168 
1169 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1170         .set_gpu_state = azx_vs_set_state,
1171         .can_switch = azx_vs_can_switch,
1172 };
1173 
1174 static int register_vga_switcheroo(struct azx *chip)
1175 {
1176         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1177         int err;
1178 
1179         if (!hda->use_vga_switcheroo)
1180                 return 0;
1181         /* FIXME: currently only handling DIS controller
1182          * is there any machine with two switchable HDMI audio controllers?
1183          */
1184         err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
1185                                                    VGA_SWITCHEROO_DIS);
1186         if (err < 0)
1187                 return err;
1188         hda->vga_switcheroo_registered = 1;
1189 
1190         /* register as an optimus hdmi audio power domain */
1191         vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
1192                                                          &hda->hdmi_pm_domain);
1193         return 0;
1194 }
1195 #else
1196 #define init_vga_switcheroo(chip)               /* NOP */
1197 #define register_vga_switcheroo(chip)           0
1198 #define check_hdmi_disabled(pci)        false
1199 #endif /* SUPPORT_VGA_SWITCHER */
1200 
1201 /*
1202  * destructor
1203  */
1204 static int azx_free(struct azx *chip)
1205 {
1206         struct pci_dev *pci = chip->pci;
1207         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1208         struct hdac_bus *bus = azx_bus(chip);
1209 
1210         if (azx_has_pm_runtime(chip) && chip->running)
1211                 pm_runtime_get_noresume(&pci->dev);
1212 
1213         azx_del_card_list(chip);
1214 
1215         hda->init_failed = 1; /* to be sure */
1216         complete_all(&hda->probe_wait);
1217 
1218         if (use_vga_switcheroo(hda)) {
1219                 if (chip->disabled && hda->probe_continued)
1220                         snd_hda_unlock_devices(&chip->bus);
1221                 if (hda->vga_switcheroo_registered) {
1222                         vga_switcheroo_unregister_client(chip->pci);
1223                         vga_switcheroo_fini_domain_pm_ops(chip->card->dev);
1224                 }
1225         }
1226 
1227         if (bus->chip_init) {
1228                 azx_clear_irq_pending(chip);
1229                 azx_stop_all_streams(chip);
1230                 azx_stop_chip(chip);
1231         }
1232 
1233         if (bus->irq >= 0)
1234                 free_irq(bus->irq, (void*)chip);
1235         if (chip->msi)
1236                 pci_disable_msi(chip->pci);
1237         iounmap(bus->remap_addr);
1238 
1239         azx_free_stream_pages(chip);
1240         azx_free_streams(chip);
1241         snd_hdac_bus_exit(bus);
1242 
1243         if (chip->region_requested)
1244                 pci_release_regions(chip->pci);
1245 
1246         pci_disable_device(chip->pci);
1247 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1248         release_firmware(chip->fw);
1249 #endif
1250 
1251         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1252                 if (hda->need_i915_power)
1253                         snd_hdac_display_power(bus, false);
1254                 snd_hdac_i915_exit(bus);
1255         }
1256         kfree(hda);
1257 
1258         return 0;
1259 }
1260 
1261 static int azx_dev_disconnect(struct snd_device *device)
1262 {
1263         struct azx *chip = device->device_data;
1264 
1265         chip->bus.shutdown = 1;
1266         return 0;
1267 }
1268 
1269 static int azx_dev_free(struct snd_device *device)
1270 {
1271         return azx_free(device->device_data);
1272 }
1273 
1274 #ifdef SUPPORT_VGA_SWITCHEROO
1275 /*
1276  * Check of disabled HDMI controller by vga_switcheroo
1277  */
1278 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1279 {
1280         struct pci_dev *p;
1281 
1282         /* check only discrete GPU */
1283         switch (pci->vendor) {
1284         case PCI_VENDOR_ID_ATI:
1285         case PCI_VENDOR_ID_AMD:
1286         case PCI_VENDOR_ID_NVIDIA:
1287                 if (pci->devfn == 1) {
1288                         p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1289                                                         pci->bus->number, 0);
1290                         if (p) {
1291                                 if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
1292                                         return p;
1293                                 pci_dev_put(p);
1294                         }
1295                 }
1296                 break;
1297         }
1298         return NULL;
1299 }
1300 
1301 static bool check_hdmi_disabled(struct pci_dev *pci)
1302 {
1303         bool vga_inactive = false;
1304         struct pci_dev *p = get_bound_vga(pci);
1305 
1306         if (p) {
1307                 if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1308                         vga_inactive = true;
1309                 pci_dev_put(p);
1310         }
1311         return vga_inactive;
1312 }
1313 #endif /* SUPPORT_VGA_SWITCHEROO */
1314 
1315 /*
1316  * white/black-listing for position_fix
1317  */
1318 static struct snd_pci_quirk position_fix_list[] = {
1319         SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1320         SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1321         SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1322         SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1323         SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1324         SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1325         SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1326         SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1327         SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1328         SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1329         SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1330         SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1331         SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1332         SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1333         {}
1334 };
1335 
1336 static int check_position_fix(struct azx *chip, int fix)
1337 {
1338         const struct snd_pci_quirk *q;
1339 
1340         switch (fix) {
1341         case POS_FIX_AUTO:
1342         case POS_FIX_LPIB:
1343         case POS_FIX_POSBUF:
1344         case POS_FIX_VIACOMBO:
1345         case POS_FIX_COMBO:
1346                 return fix;
1347         }
1348 
1349         q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1350         if (q) {
1351                 dev_info(chip->card->dev,
1352                          "position_fix set to %d for device %04x:%04x\n",
1353                          q->value, q->subvendor, q->subdevice);
1354                 return q->value;
1355         }
1356 
1357         /* Check VIA/ATI HD Audio Controller exist */
1358         if (chip->driver_type == AZX_DRIVER_VIA) {
1359                 dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1360                 return POS_FIX_VIACOMBO;
1361         }
1362         if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1363                 dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1364                 return POS_FIX_LPIB;
1365         }
1366         return POS_FIX_AUTO;
1367 }
1368 
1369 static void assign_position_fix(struct azx *chip, int fix)
1370 {
1371         static azx_get_pos_callback_t callbacks[] = {
1372                 [POS_FIX_AUTO] = NULL,
1373                 [POS_FIX_LPIB] = azx_get_pos_lpib,
1374                 [POS_FIX_POSBUF] = azx_get_pos_posbuf,
1375                 [POS_FIX_VIACOMBO] = azx_via_get_position,
1376                 [POS_FIX_COMBO] = azx_get_pos_lpib,
1377         };
1378 
1379         chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1380 
1381         /* combo mode uses LPIB only for playback */
1382         if (fix == POS_FIX_COMBO)
1383                 chip->get_position[1] = NULL;
1384 
1385         if (fix == POS_FIX_POSBUF &&
1386             (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1387                 chip->get_delay[0] = chip->get_delay[1] =
1388                         azx_get_delay_from_lpib;
1389         }
1390 
1391 }
1392 
1393 /*
1394  * black-lists for probe_mask
1395  */
1396 static struct snd_pci_quirk probe_mask_list[] = {
1397         /* Thinkpad often breaks the controller communication when accessing
1398          * to the non-working (or non-existing) modem codec slot.
1399          */
1400         SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1401         SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1402         SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1403         /* broken BIOS */
1404         SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1405         /* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1406         SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1407         /* forced codec slots */
1408         SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1409         SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1410         /* WinFast VP200 H (Teradici) user reported broken communication */
1411         SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1412         {}
1413 };
1414 
1415 #define AZX_FORCE_CODEC_MASK    0x100
1416 
1417 static void check_probe_mask(struct azx *chip, int dev)
1418 {
1419         const struct snd_pci_quirk *q;
1420 
1421         chip->codec_probe_mask = probe_mask[dev];
1422         if (chip->codec_probe_mask == -1) {
1423                 q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1424                 if (q) {
1425                         dev_info(chip->card->dev,
1426                                  "probe_mask set to 0x%x for device %04x:%04x\n",
1427                                  q->value, q->subvendor, q->subdevice);
1428                         chip->codec_probe_mask = q->value;
1429                 }
1430         }
1431 
1432         /* check forced option */
1433         if (chip->codec_probe_mask != -1 &&
1434             (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1435                 azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1436                 dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1437                          (int)azx_bus(chip)->codec_mask);
1438         }
1439 }
1440 
1441 /*
1442  * white/black-list for enable_msi
1443  */
1444 static struct snd_pci_quirk msi_black_list[] = {
1445         SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1446         SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1447         SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1448         SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1449         SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1450         SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1451         SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1452         SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1453         SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1454         SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1455         {}
1456 };
1457 
1458 static void check_msi(struct azx *chip)
1459 {
1460         const struct snd_pci_quirk *q;
1461 
1462         if (enable_msi >= 0) {
1463                 chip->msi = !!enable_msi;
1464                 return;
1465         }
1466         chip->msi = 1;  /* enable MSI as default */
1467         q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1468         if (q) {
1469                 dev_info(chip->card->dev,
1470                          "msi for device %04x:%04x set to %d\n",
1471                          q->subvendor, q->subdevice, q->value);
1472                 chip->msi = q->value;
1473                 return;
1474         }
1475 
1476         /* NVidia chipsets seem to cause troubles with MSI */
1477         if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1478                 dev_info(chip->card->dev, "Disabling MSI\n");
1479                 chip->msi = 0;
1480         }
1481 }
1482 
1483 /* check the snoop mode availability */
1484 static void azx_check_snoop_available(struct azx *chip)
1485 {
1486         int snoop = hda_snoop;
1487 
1488         if (snoop >= 0) {
1489                 dev_info(chip->card->dev, "Force to %s mode by module option\n",
1490                          snoop ? "snoop" : "non-snoop");
1491                 chip->snoop = snoop;
1492                 return;
1493         }
1494 
1495         snoop = true;
1496         if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1497             chip->driver_type == AZX_DRIVER_VIA) {
1498                 /* force to non-snoop mode for a new VIA controller
1499                  * when BIOS is set
1500                  */
1501                 u8 val;
1502                 pci_read_config_byte(chip->pci, 0x42, &val);
1503                 if (!(val & 0x80) && chip->pci->revision == 0x30)
1504                         snoop = false;
1505         }
1506 
1507         if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1508                 snoop = false;
1509 
1510         chip->snoop = snoop;
1511         if (!snoop)
1512                 dev_info(chip->card->dev, "Force to non-snoop mode\n");
1513 }
1514 
1515 static void azx_probe_work(struct work_struct *work)
1516 {
1517         struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1518         azx_probe_continue(&hda->chip);
1519 }
1520 
1521 static int default_bdl_pos_adj(struct azx *chip)
1522 {
1523         /* some exceptions: Atoms seem problematic with value 1 */
1524         if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1525                 switch (chip->pci->device) {
1526                 case 0x0f04: /* Baytrail */
1527                 case 0x2284: /* Braswell */
1528                         return 32;
1529                 }
1530         }
1531 
1532         switch (chip->driver_type) {
1533         case AZX_DRIVER_ICH:
1534         case AZX_DRIVER_PCH:
1535                 return 1;
1536         default:
1537                 return 32;
1538         }
1539 }
1540 
1541 /*
1542  * constructor
1543  */
1544 static const struct hdac_io_ops pci_hda_io_ops;
1545 static const struct hda_controller_ops pci_hda_ops;
1546 
1547 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1548                       int dev, unsigned int driver_caps,
1549                       struct azx **rchip)
1550 {
1551         static struct snd_device_ops ops = {
1552                 .dev_disconnect = azx_dev_disconnect,
1553                 .dev_free = azx_dev_free,
1554         };
1555         struct hda_intel *hda;
1556         struct azx *chip;
1557         int err;
1558 
1559         *rchip = NULL;
1560 
1561         err = pci_enable_device(pci);
1562         if (err < 0)
1563                 return err;
1564 
1565         hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1566         if (!hda) {
1567                 pci_disable_device(pci);
1568                 return -ENOMEM;
1569         }
1570 
1571         chip = &hda->chip;
1572         mutex_init(&chip->open_mutex);
1573         chip->card = card;
1574         chip->pci = pci;
1575         chip->ops = &pci_hda_ops;
1576         chip->driver_caps = driver_caps;
1577         chip->driver_type = driver_caps & 0xff;
1578         check_msi(chip);
1579         chip->dev_index = dev;
1580         chip->jackpoll_ms = jackpoll_ms;
1581         INIT_LIST_HEAD(&chip->pcm_list);
1582         INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1583         INIT_LIST_HEAD(&hda->list);
1584         init_vga_switcheroo(chip);
1585         init_completion(&hda->probe_wait);
1586 
1587         assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1588 
1589         check_probe_mask(chip, dev);
1590 
1591         chip->single_cmd = single_cmd;
1592         azx_check_snoop_available(chip);
1593 
1594         if (bdl_pos_adj[dev] < 0)
1595                 chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1596         else
1597                 chip->bdl_pos_adj = bdl_pos_adj[dev];
1598 
1599         err = azx_bus_init(chip, model[dev], &pci_hda_io_ops);
1600         if (err < 0) {
1601                 kfree(hda);
1602                 pci_disable_device(pci);
1603                 return err;
1604         }
1605 
1606         if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1607                 dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1608                 chip->bus.needs_damn_long_delay = 1;
1609         }
1610 
1611         err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1612         if (err < 0) {
1613                 dev_err(card->dev, "Error creating device [card]!\n");
1614                 azx_free(chip);
1615                 return err;
1616         }
1617 
1618         /* continue probing in work context as may trigger request module */
1619         INIT_WORK(&hda->probe_work, azx_probe_work);
1620 
1621         *rchip = chip;
1622 
1623         return 0;
1624 }
1625 
1626 static int azx_first_init(struct azx *chip)
1627 {
1628         int dev = chip->dev_index;
1629         struct pci_dev *pci = chip->pci;
1630         struct snd_card *card = chip->card;
1631         struct hdac_bus *bus = azx_bus(chip);
1632         int err;
1633         unsigned short gcap;
1634         unsigned int dma_bits = 64;
1635 
1636 #if BITS_PER_LONG != 64
1637         /* Fix up base address on ULI M5461 */
1638         if (chip->driver_type == AZX_DRIVER_ULI) {
1639                 u16 tmp3;
1640                 pci_read_config_word(pci, 0x40, &tmp3);
1641                 pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1642                 pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1643         }
1644 #endif
1645 
1646         err = pci_request_regions(pci, "ICH HD audio");
1647         if (err < 0)
1648                 return err;
1649         chip->region_requested = 1;
1650 
1651         bus->addr = pci_resource_start(pci, 0);
1652         bus->remap_addr = pci_ioremap_bar(pci, 0);
1653         if (bus->remap_addr == NULL) {
1654                 dev_err(card->dev, "ioremap error\n");
1655                 return -ENXIO;
1656         }
1657 
1658         if (chip->msi) {
1659                 if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1660                         dev_dbg(card->dev, "Disabling 64bit MSI\n");
1661                         pci->no_64bit_msi = true;
1662                 }
1663                 if (pci_enable_msi(pci) < 0)
1664                         chip->msi = 0;
1665         }
1666 
1667         if (azx_acquire_irq(chip, 0) < 0)
1668                 return -EBUSY;
1669 
1670         pci_set_master(pci);
1671         synchronize_irq(bus->irq);
1672 
1673         gcap = azx_readw(chip, GCAP);
1674         dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1675 
1676         /* AMD devices support 40 or 48bit DMA, take the safe one */
1677         if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1678                 dma_bits = 40;
1679 
1680         /* disable SB600 64bit support for safety */
1681         if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1682                 struct pci_dev *p_smbus;
1683                 dma_bits = 40;
1684                 p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1685                                          PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1686                                          NULL);
1687                 if (p_smbus) {
1688                         if (p_smbus->revision < 0x30)
1689                                 gcap &= ~AZX_GCAP_64OK;
1690                         pci_dev_put(p_smbus);
1691                 }
1692         }
1693 
1694         /* disable 64bit DMA address on some devices */
1695         if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1696                 dev_dbg(card->dev, "Disabling 64bit DMA\n");
1697                 gcap &= ~AZX_GCAP_64OK;
1698         }
1699 
1700         /* disable buffer size rounding to 128-byte multiples if supported */
1701         if (align_buffer_size >= 0)
1702                 chip->align_buffer_size = !!align_buffer_size;
1703         else {
1704                 if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1705                         chip->align_buffer_size = 0;
1706                 else
1707                         chip->align_buffer_size = 1;
1708         }
1709 
1710         /* allow 64bit DMA address if supported by H/W */
1711         if (!(gcap & AZX_GCAP_64OK))
1712                 dma_bits = 32;
1713         if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1714                 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1715         } else {
1716                 dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1717                 dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1718         }
1719 
1720         /* read number of streams from GCAP register instead of using
1721          * hardcoded value
1722          */
1723         chip->capture_streams = (gcap >> 8) & 0x0f;
1724         chip->playback_streams = (gcap >> 12) & 0x0f;
1725         if (!chip->playback_streams && !chip->capture_streams) {
1726                 /* gcap didn't give any info, switching to old method */
1727 
1728                 switch (chip->driver_type) {
1729                 case AZX_DRIVER_ULI:
1730                         chip->playback_streams = ULI_NUM_PLAYBACK;
1731                         chip->capture_streams = ULI_NUM_CAPTURE;
1732                         break;
1733                 case AZX_DRIVER_ATIHDMI:
1734                 case AZX_DRIVER_ATIHDMI_NS:
1735                         chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1736                         chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1737                         break;
1738                 case AZX_DRIVER_GENERIC:
1739                 default:
1740                         chip->playback_streams = ICH6_NUM_PLAYBACK;
1741                         chip->capture_streams = ICH6_NUM_CAPTURE;
1742                         break;
1743                 }
1744         }
1745         chip->capture_index_offset = 0;
1746         chip->playback_index_offset = chip->capture_streams;
1747         chip->num_streams = chip->playback_streams + chip->capture_streams;
1748 
1749         /* initialize streams */
1750         err = azx_init_streams(chip);
1751         if (err < 0)
1752                 return err;
1753 
1754         err = azx_alloc_stream_pages(chip);
1755         if (err < 0)
1756                 return err;
1757 
1758         /* initialize chip */
1759         azx_init_pci(chip);
1760 
1761         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
1762                 snd_hdac_i915_set_bclk(bus);
1763 
1764         hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
1765 
1766         /* codec detection */
1767         if (!azx_bus(chip)->codec_mask) {
1768                 dev_err(card->dev, "no codecs found!\n");
1769                 return -ENODEV;
1770         }
1771 
1772         strcpy(card->driver, "HDA-Intel");
1773         strlcpy(card->shortname, driver_short_names[chip->driver_type],
1774                 sizeof(card->shortname));
1775         snprintf(card->longname, sizeof(card->longname),
1776                  "%s at 0x%lx irq %i",
1777                  card->shortname, bus->addr, bus->irq);
1778 
1779         return 0;
1780 }
1781 
1782 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1783 /* callback from request_firmware_nowait() */
1784 static void azx_firmware_cb(const struct firmware *fw, void *context)
1785 {
1786         struct snd_card *card = context;
1787         struct azx *chip = card->private_data;
1788         struct pci_dev *pci = chip->pci;
1789 
1790         if (!fw) {
1791                 dev_err(card->dev, "Cannot load firmware, aborting\n");
1792                 goto error;
1793         }
1794 
1795         chip->fw = fw;
1796         if (!chip->disabled) {
1797                 /* continue probing */
1798                 if (azx_probe_continue(chip))
1799                         goto error;
1800         }
1801         return; /* OK */
1802 
1803  error:
1804         snd_card_free(card);
1805         pci_set_drvdata(pci, NULL);
1806 }
1807 #endif
1808 
1809 /*
1810  * HDA controller ops.
1811  */
1812 
1813 /* PCI register access. */
1814 static void pci_azx_writel(u32 value, u32 __iomem *addr)
1815 {
1816         writel(value, addr);
1817 }
1818 
1819 static u32 pci_azx_readl(u32 __iomem *addr)
1820 {
1821         return readl(addr);
1822 }
1823 
1824 static void pci_azx_writew(u16 value, u16 __iomem *addr)
1825 {
1826         writew(value, addr);
1827 }
1828 
1829 static u16 pci_azx_readw(u16 __iomem *addr)
1830 {
1831         return readw(addr);
1832 }
1833 
1834 static void pci_azx_writeb(u8 value, u8 __iomem *addr)
1835 {
1836         writeb(value, addr);
1837 }
1838 
1839 static u8 pci_azx_readb(u8 __iomem *addr)
1840 {
1841         return readb(addr);
1842 }
1843 
1844 static int disable_msi_reset_irq(struct azx *chip)
1845 {
1846         struct hdac_bus *bus = azx_bus(chip);
1847         int err;
1848 
1849         free_irq(bus->irq, chip);
1850         bus->irq = -1;
1851         pci_disable_msi(chip->pci);
1852         chip->msi = 0;
1853         err = azx_acquire_irq(chip, 1);
1854         if (err < 0)
1855                 return err;
1856 
1857         return 0;
1858 }
1859 
1860 /* DMA page allocation helpers.  */
1861 static int dma_alloc_pages(struct hdac_bus *bus,
1862                            int type,
1863                            size_t size,
1864                            struct snd_dma_buffer *buf)
1865 {
1866         struct azx *chip = bus_to_azx(bus);
1867         int err;
1868 
1869         err = snd_dma_alloc_pages(type,
1870                                   bus->dev,
1871                                   size, buf);
1872         if (err < 0)
1873                 return err;
1874         mark_pages_wc(chip, buf, true);
1875         return 0;
1876 }
1877 
1878 static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
1879 {
1880         struct azx *chip = bus_to_azx(bus);
1881 
1882         mark_pages_wc(chip, buf, false);
1883         snd_dma_free_pages(buf);
1884 }
1885 
1886 static int substream_alloc_pages(struct azx *chip,
1887                                  struct snd_pcm_substream *substream,
1888                                  size_t size)
1889 {
1890         struct azx_dev *azx_dev = get_azx_dev(substream);
1891         int ret;
1892 
1893         mark_runtime_wc(chip, azx_dev, substream, false);
1894         ret = snd_pcm_lib_malloc_pages(substream, size);
1895         if (ret < 0)
1896                 return ret;
1897         mark_runtime_wc(chip, azx_dev, substream, true);
1898         return 0;
1899 }
1900 
1901 static int substream_free_pages(struct azx *chip,
1902                                 struct snd_pcm_substream *substream)
1903 {
1904         struct azx_dev *azx_dev = get_azx_dev(substream);
1905         mark_runtime_wc(chip, azx_dev, substream, false);
1906         return snd_pcm_lib_free_pages(substream);
1907 }
1908 
1909 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
1910                              struct vm_area_struct *area)
1911 {
1912 #ifdef CONFIG_X86
1913         struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1914         struct azx *chip = apcm->chip;
1915         if (!azx_snoop(chip) && chip->driver_type != AZX_DRIVER_CMEDIA)
1916                 area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
1917 #endif
1918 }
1919 
1920 static const struct hdac_io_ops pci_hda_io_ops = {
1921         .reg_writel = pci_azx_writel,
1922         .reg_readl = pci_azx_readl,
1923         .reg_writew = pci_azx_writew,
1924         .reg_readw = pci_azx_readw,
1925         .reg_writeb = pci_azx_writeb,
1926         .reg_readb = pci_azx_readb,
1927         .dma_alloc_pages = dma_alloc_pages,
1928         .dma_free_pages = dma_free_pages,
1929 };
1930 
1931 static const struct hda_controller_ops pci_hda_ops = {
1932         .disable_msi_reset_irq = disable_msi_reset_irq,
1933         .substream_alloc_pages = substream_alloc_pages,
1934         .substream_free_pages = substream_free_pages,
1935         .pcm_mmap_prepare = pcm_mmap_prepare,
1936         .position_check = azx_position_check,
1937         .link_power = azx_intel_link_power,
1938 };
1939 
1940 static int azx_probe(struct pci_dev *pci,
1941                      const struct pci_device_id *pci_id)
1942 {
1943         static int dev;
1944         struct snd_card *card;
1945         struct hda_intel *hda;
1946         struct azx *chip;
1947         bool schedule_probe;
1948         int err;
1949 
1950         if (dev >= SNDRV_CARDS)
1951                 return -ENODEV;
1952         if (!enable[dev]) {
1953                 dev++;
1954                 return -ENOENT;
1955         }
1956 
1957         err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1958                            0, &card);
1959         if (err < 0) {
1960                 dev_err(&pci->dev, "Error creating card!\n");
1961                 return err;
1962         }
1963 
1964         err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
1965         if (err < 0)
1966                 goto out_free;
1967         card->private_data = chip;
1968         hda = container_of(chip, struct hda_intel, chip);
1969 
1970         pci_set_drvdata(pci, card);
1971 
1972         err = register_vga_switcheroo(chip);
1973         if (err < 0) {
1974                 dev_err(card->dev, "Error registering vga_switcheroo client\n");
1975                 goto out_free;
1976         }
1977 
1978         if (check_hdmi_disabled(pci)) {
1979                 dev_info(card->dev, "VGA controller is disabled\n");
1980                 dev_info(card->dev, "Delaying initialization\n");
1981                 chip->disabled = true;
1982         }
1983 
1984         schedule_probe = !chip->disabled;
1985 
1986 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1987         if (patch[dev] && *patch[dev]) {
1988                 dev_info(card->dev, "Applying patch firmware '%s'\n",
1989                          patch[dev]);
1990                 err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
1991                                               &pci->dev, GFP_KERNEL, card,
1992                                               azx_firmware_cb);
1993                 if (err < 0)
1994                         goto out_free;
1995                 schedule_probe = false; /* continued in azx_firmware_cb() */
1996         }
1997 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
1998 
1999 #ifndef CONFIG_SND_HDA_I915
2000         if (CONTROLLER_IN_GPU(pci))
2001                 dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2002 #endif
2003 
2004         if (schedule_probe)
2005                 schedule_work(&hda->probe_work);
2006 
2007         dev++;
2008         if (chip->disabled)
2009                 complete_all(&hda->probe_wait);
2010         return 0;
2011 
2012 out_free:
2013         snd_card_free(card);
2014         return err;
2015 }
2016 
2017 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2018 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2019         [AZX_DRIVER_NVIDIA] = 8,
2020         [AZX_DRIVER_TERA] = 1,
2021 };
2022 
2023 static int azx_probe_continue(struct azx *chip)
2024 {
2025         struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2026         struct hdac_bus *bus = azx_bus(chip);
2027         struct pci_dev *pci = chip->pci;
2028         int dev = chip->dev_index;
2029         int err;
2030 
2031         hda->probe_continued = 1;
2032 
2033         /* Request display power well for the HDA controller or codec. For
2034          * Haswell/Broadwell, both the display HDA controller and codec need
2035          * this power. For other platforms, like Baytrail/Braswell, only the
2036          * display codec needs the power and it can be released after probe.
2037          */
2038         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
2039                 /* HSW/BDW controllers need this power */
2040                 if (CONTROLLER_IN_GPU(pci))
2041                         hda->need_i915_power = 1;
2042 
2043                 err = snd_hdac_i915_init(bus);
2044                 if (err < 0) {
2045                         /* if the controller is bound only with HDMI/DP
2046                          * (for HSW and BDW), we need to abort the probe;
2047                          * for other chips, still continue probing as other
2048                          * codecs can be on the same link.
2049                          */
2050                         if (CONTROLLER_IN_GPU(pci)) {
2051                                 dev_err(chip->card->dev,
2052                                         "HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2053                                 goto out_free;
2054                         } else
2055                                 goto skip_i915;
2056                 }
2057 
2058                 err = snd_hdac_display_power(bus, true);
2059                 if (err < 0) {
2060                         dev_err(chip->card->dev,
2061                                 "Cannot turn on display power on i915\n");
2062                         goto i915_power_fail;
2063                 }
2064         }
2065 
2066  skip_i915:
2067         err = azx_first_init(chip);
2068         if (err < 0)
2069                 goto out_free;
2070 
2071 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2072         chip->beep_mode = beep_mode[dev];
2073 #endif
2074 
2075         /* create codec instances */
2076         err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2077         if (err < 0)
2078                 goto out_free;
2079 
2080 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2081         if (chip->fw) {
2082                 err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2083                                          chip->fw->data);
2084                 if (err < 0)
2085                         goto out_free;
2086 #ifndef CONFIG_PM
2087                 release_firmware(chip->fw); /* no longer needed */
2088                 chip->fw = NULL;
2089 #endif
2090         }
2091 #endif
2092         if ((probe_only[dev] & 1) == 0) {
2093                 err = azx_codec_configure(chip);
2094                 if (err < 0)
2095                         goto out_free;
2096         }
2097 
2098         err = snd_card_register(chip->card);
2099         if (err < 0)
2100                 goto out_free;
2101 
2102         chip->running = 1;
2103         azx_add_card_list(chip);
2104         snd_hda_set_power_save(&chip->bus, power_save * 1000);
2105         if (azx_has_pm_runtime(chip) || hda->use_vga_switcheroo)
2106                 pm_runtime_put_autosuspend(&pci->dev);
2107 
2108 out_free:
2109         if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL
2110                 && !hda->need_i915_power)
2111                 snd_hdac_display_power(bus, false);
2112 
2113 i915_power_fail:
2114         if (err < 0)
2115                 hda->init_failed = 1;
2116         complete_all(&hda->probe_wait);
2117         return err;
2118 }
2119 
2120 static void azx_remove(struct pci_dev *pci)
2121 {
2122         struct snd_card *card = pci_get_drvdata(pci);
2123         struct azx *chip;
2124         struct hda_intel *hda;
2125 
2126         if (card) {
2127                 /* cancel the pending probing work */
2128                 chip = card->private_data;
2129                 hda = container_of(chip, struct hda_intel, chip);
2130                 cancel_work_sync(&hda->probe_work);
2131 
2132                 snd_card_free(card);
2133         }
2134 }
2135 
2136 static void azx_shutdown(struct pci_dev *pci)
2137 {
2138         struct snd_card *card = pci_get_drvdata(pci);
2139         struct azx *chip;
2140 
2141         if (!card)
2142                 return;
2143         chip = card->private_data;
2144         if (chip && chip->running)
2145                 azx_stop_chip(chip);
2146 }
2147 
2148 /* PCI IDs */
2149 static const struct pci_device_id azx_ids[] = {
2150         /* CPT */
2151         { PCI_DEVICE(0x8086, 0x1c20),
2152           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2153         /* PBG */
2154         { PCI_DEVICE(0x8086, 0x1d20),
2155           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2156         /* Panther Point */
2157         { PCI_DEVICE(0x8086, 0x1e20),
2158           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2159         /* Lynx Point */
2160         { PCI_DEVICE(0x8086, 0x8c20),
2161           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2162         /* 9 Series */
2163         { PCI_DEVICE(0x8086, 0x8ca0),
2164           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2165         /* Wellsburg */
2166         { PCI_DEVICE(0x8086, 0x8d20),
2167           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2168         { PCI_DEVICE(0x8086, 0x8d21),
2169           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2170         /* Lewisburg */
2171         { PCI_DEVICE(0x8086, 0xa1f0),
2172           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2173         { PCI_DEVICE(0x8086, 0xa270),
2174           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2175         /* Lynx Point-LP */
2176         { PCI_DEVICE(0x8086, 0x9c20),
2177           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2178         /* Lynx Point-LP */
2179         { PCI_DEVICE(0x8086, 0x9c21),
2180           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2181         /* Wildcat Point-LP */
2182         { PCI_DEVICE(0x8086, 0x9ca0),
2183           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2184         /* Sunrise Point */
2185         { PCI_DEVICE(0x8086, 0xa170),
2186           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2187         /* Sunrise Point-LP */
2188         { PCI_DEVICE(0x8086, 0x9d70),
2189           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2190         /* Kabylake */
2191         { PCI_DEVICE(0x8086, 0xa171),
2192           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2193         /* Kabylake-LP */
2194         { PCI_DEVICE(0x8086, 0x9d71),
2195           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2196         /* Kabylake-H */
2197         { PCI_DEVICE(0x8086, 0xa2f0),
2198           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2199         /* Broxton-P(Apollolake) */
2200         { PCI_DEVICE(0x8086, 0x5a98),
2201           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BROXTON },
2202         /* Broxton-T */
2203         { PCI_DEVICE(0x8086, 0x1a98),
2204           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BROXTON },
2205         /* Haswell */
2206         { PCI_DEVICE(0x8086, 0x0a0c),
2207           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2208         { PCI_DEVICE(0x8086, 0x0c0c),
2209           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2210         { PCI_DEVICE(0x8086, 0x0d0c),
2211           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2212         /* Broadwell */
2213         { PCI_DEVICE(0x8086, 0x160c),
2214           .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2215         /* 5 Series/3400 */
2216         { PCI_DEVICE(0x8086, 0x3b56),
2217           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2218         /* Poulsbo */
2219         { PCI_DEVICE(0x8086, 0x811b),
2220           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2221         /* Oaktrail */
2222         { PCI_DEVICE(0x8086, 0x080a),
2223           .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2224         /* BayTrail */
2225         { PCI_DEVICE(0x8086, 0x0f04),
2226           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2227         /* Braswell */
2228         { PCI_DEVICE(0x8086, 0x2284),
2229           .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2230         /* ICH6 */
2231         { PCI_DEVICE(0x8086, 0x2668),
2232           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2233         /* ICH7 */
2234         { PCI_DEVICE(0x8086, 0x27d8),
2235           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2236         /* ESB2 */
2237         { PCI_DEVICE(0x8086, 0x269a),
2238           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2239         /* ICH8 */
2240         { PCI_DEVICE(0x8086, 0x284b),
2241           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2242         /* ICH9 */
2243         { PCI_DEVICE(0x8086, 0x293e),
2244           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2245         /* ICH9 */
2246         { PCI_DEVICE(0x8086, 0x293f),
2247           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2248         /* ICH10 */
2249         { PCI_DEVICE(0x8086, 0x3a3e),
2250           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2251         /* ICH10 */
2252         { PCI_DEVICE(0x8086, 0x3a6e),
2253           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2254         /* Generic Intel */
2255         { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2256           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2257           .class_mask = 0xffffff,
2258           .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2259         /* ATI SB 450/600/700/800/900 */
2260         { PCI_DEVICE(0x1002, 0x437b),
2261           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2262         { PCI_DEVICE(0x1002, 0x4383),
2263           .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2264         /* AMD Hudson */
2265         { PCI_DEVICE(0x1022, 0x780d),
2266           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2267         /* ATI HDMI */
2268         { PCI_DEVICE(0x1002, 0x1308),
2269           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2270         { PCI_DEVICE(0x1002, 0x157a),
2271           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2272         { PCI_DEVICE(0x1002, 0x15b3),
2273           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2274         { PCI_DEVICE(0x1002, 0x793b),
2275           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2276         { PCI_DEVICE(0x1002, 0x7919),
2277           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2278         { PCI_DEVICE(0x1002, 0x960f),
2279           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2280         { PCI_DEVICE(0x1002, 0x970f),
2281           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2282         { PCI_DEVICE(0x1002, 0x9840),
2283           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2284         { PCI_DEVICE(0x1002, 0xaa00),
2285           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2286         { PCI_DEVICE(0x1002, 0xaa08),
2287           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2288         { PCI_DEVICE(0x1002, 0xaa10),
2289           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2290         { PCI_DEVICE(0x1002, 0xaa18),
2291           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2292         { PCI_DEVICE(0x1002, 0xaa20),
2293           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2294         { PCI_DEVICE(0x1002, 0xaa28),
2295           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2296         { PCI_DEVICE(0x1002, 0xaa30),
2297           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2298         { PCI_DEVICE(0x1002, 0xaa38),
2299           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2300         { PCI_DEVICE(0x1002, 0xaa40),
2301           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2302         { PCI_DEVICE(0x1002, 0xaa48),
2303           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2304         { PCI_DEVICE(0x1002, 0xaa50),
2305           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2306         { PCI_DEVICE(0x1002, 0xaa58),
2307           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2308         { PCI_DEVICE(0x1002, 0xaa60),
2309           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2310         { PCI_DEVICE(0x1002, 0xaa68),
2311           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2312         { PCI_DEVICE(0x1002, 0xaa80),
2313           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2314         { PCI_DEVICE(0x1002, 0xaa88),
2315           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2316         { PCI_DEVICE(0x1002, 0xaa90),
2317           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2318         { PCI_DEVICE(0x1002, 0xaa98),
2319           .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2320         { PCI_DEVICE(0x1002, 0x9902),
2321           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2322         { PCI_DEVICE(0x1002, 0xaaa0),
2323           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2324         { PCI_DEVICE(0x1002, 0xaaa8),
2325           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2326         { PCI_DEVICE(0x1002, 0xaab0),
2327           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2328         { PCI_DEVICE(0x1002, 0xaac0),
2329           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2330         { PCI_DEVICE(0x1002, 0xaac8),
2331           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2332         { PCI_DEVICE(0x1002, 0xaad8),
2333           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2334         { PCI_DEVICE(0x1002, 0xaae8),
2335           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2336         { PCI_DEVICE(0x1002, 0xaae0),
2337           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2338         { PCI_DEVICE(0x1002, 0xaaf0),
2339           .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2340         /* VIA VT8251/VT8237A */
2341         { PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2342         /* VIA GFX VT7122/VX900 */
2343         { PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2344         /* VIA GFX VT6122/VX11 */
2345         { PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2346         /* SIS966 */
2347         { PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2348         /* ULI M5461 */
2349         { PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2350         /* NVIDIA MCP */
2351         { PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2352           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2353           .class_mask = 0xffffff,
2354           .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2355         /* Teradici */
2356         { PCI_DEVICE(0x6549, 0x1200),
2357           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2358         { PCI_DEVICE(0x6549, 0x2200),
2359           .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2360         /* Creative X-Fi (CA0110-IBG) */
2361         /* CTHDA chips */
2362         { PCI_DEVICE(0x1102, 0x0010),
2363           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2364         { PCI_DEVICE(0x1102, 0x0012),
2365           .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2366 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2367         /* the following entry conflicts with snd-ctxfi driver,
2368          * as ctxfi driver mutates from HD-audio to native mode with
2369          * a special command sequence.
2370          */
2371         { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2372           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2373           .class_mask = 0xffffff,
2374           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2375           AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2376 #else
2377         /* this entry seems still valid -- i.e. without emu20kx chip */
2378         { PCI_DEVICE(0x1102, 0x0009),
2379           .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2380           AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2381 #endif
2382         /* CM8888 */
2383         { PCI_DEVICE(0x13f6, 0x5011),
2384           .driver_data = AZX_DRIVER_CMEDIA |
2385           AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2386         /* Vortex86MX */
2387         { PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2388         /* VMware HDAudio */
2389         { PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2390         /* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2391         { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2392           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2393           .class_mask = 0xffffff,
2394           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2395         { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2396           .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2397           .class_mask = 0xffffff,
2398           .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2399         { 0, }
2400 };
2401 MODULE_DEVICE_TABLE(pci, azx_ids);
2402 
2403 /* pci_driver definition */
2404 static struct pci_driver azx_driver = {
2405         .name = KBUILD_MODNAME,
2406         .id_table = azx_ids,
2407         .probe = azx_probe,
2408         .remove = azx_remove,
2409         .shutdown = azx_shutdown,
2410         .driver = {
2411                 .pm = AZX_PM_OPS,
2412         },
2413 };
2414 
2415 module_pci_driver(azx_driver);
2416 

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