xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision a8a28aff)
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/reboot.h>
48 #include <linux/io.h>
49 #include <linux/pm_runtime.h>
50 #include <linux/clocksource.h>
51 #include <linux/time.h>
52 #include <linux/completion.h>
53 
54 #ifdef CONFIG_X86
55 /* for snoop control */
56 #include <asm/pgtable.h>
57 #include <asm/cacheflush.h>
58 #endif
59 #include <sound/core.h>
60 #include <sound/initval.h>
61 #include <linux/vgaarb.h>
62 #include <linux/vga_switcheroo.h>
63 #include <linux/firmware.h>
64 #include "hda_codec.h"
65 #include "hda_i915.h"
66 #include "hda_controller.h"
67 #include "hda_priv.h"
68 
69 
70 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
71 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
72 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
73 static char *model[SNDRV_CARDS];
74 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
75 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
76 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
77 static int probe_only[SNDRV_CARDS];
78 static int jackpoll_ms[SNDRV_CARDS];
79 static bool single_cmd;
80 static int enable_msi = -1;
81 #ifdef CONFIG_SND_HDA_PATCH_LOADER
82 static char *patch[SNDRV_CARDS];
83 #endif
84 #ifdef CONFIG_SND_HDA_INPUT_BEEP
85 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
86 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
87 #endif
88 
89 module_param_array(index, int, NULL, 0444);
90 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
91 module_param_array(id, charp, NULL, 0444);
92 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
93 module_param_array(enable, bool, NULL, 0444);
94 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
95 module_param_array(model, charp, NULL, 0444);
96 MODULE_PARM_DESC(model, "Use the given board model.");
97 module_param_array(position_fix, int, NULL, 0444);
98 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
99 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
100 module_param_array(bdl_pos_adj, int, NULL, 0644);
101 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
102 module_param_array(probe_mask, int, NULL, 0444);
103 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
104 module_param_array(probe_only, int, NULL, 0444);
105 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
106 module_param_array(jackpoll_ms, int, NULL, 0444);
107 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
108 module_param(single_cmd, bool, 0444);
109 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
110 		 "(for debugging only).");
111 module_param(enable_msi, bint, 0444);
112 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
113 #ifdef CONFIG_SND_HDA_PATCH_LOADER
114 module_param_array(patch, charp, NULL, 0444);
115 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
116 #endif
117 #ifdef CONFIG_SND_HDA_INPUT_BEEP
118 module_param_array(beep_mode, bool, NULL, 0444);
119 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
120 			    "(0=off, 1=on) (default=1).");
121 #endif
122 
123 #ifdef CONFIG_PM
124 static int param_set_xint(const char *val, const struct kernel_param *kp);
125 static struct kernel_param_ops param_ops_xint = {
126 	.set = param_set_xint,
127 	.get = param_get_int,
128 };
129 #define param_check_xint param_check_int
130 
131 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
132 static int *power_save_addr = &power_save;
133 module_param(power_save, xint, 0644);
134 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
135 		 "(in second, 0 = disable).");
136 
137 /* reset the HD-audio controller in power save mode.
138  * this may give more power-saving, but will take longer time to
139  * wake up.
140  */
141 static bool power_save_controller = 1;
142 module_param(power_save_controller, bool, 0644);
143 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
144 #else
145 static int *power_save_addr;
146 #endif /* CONFIG_PM */
147 
148 static int align_buffer_size = -1;
149 module_param(align_buffer_size, bint, 0644);
150 MODULE_PARM_DESC(align_buffer_size,
151 		"Force buffer and period sizes to be multiple of 128 bytes.");
152 
153 #ifdef CONFIG_X86
154 static bool hda_snoop = true;
155 module_param_named(snoop, hda_snoop, bool, 0444);
156 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
157 #else
158 #define hda_snoop		true
159 #endif
160 
161 
162 MODULE_LICENSE("GPL");
163 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
164 			 "{Intel, ICH6M},"
165 			 "{Intel, ICH7},"
166 			 "{Intel, ESB2},"
167 			 "{Intel, ICH8},"
168 			 "{Intel, ICH9},"
169 			 "{Intel, ICH10},"
170 			 "{Intel, PCH},"
171 			 "{Intel, CPT},"
172 			 "{Intel, PPT},"
173 			 "{Intel, LPT},"
174 			 "{Intel, LPT_LP},"
175 			 "{Intel, WPT_LP},"
176 			 "{Intel, HPT},"
177 			 "{Intel, PBG},"
178 			 "{Intel, SCH},"
179 			 "{ATI, SB450},"
180 			 "{ATI, SB600},"
181 			 "{ATI, RS600},"
182 			 "{ATI, RS690},"
183 			 "{ATI, RS780},"
184 			 "{ATI, R600},"
185 			 "{ATI, RV630},"
186 			 "{ATI, RV610},"
187 			 "{ATI, RV670},"
188 			 "{ATI, RV635},"
189 			 "{ATI, RV620},"
190 			 "{ATI, RV770},"
191 			 "{VIA, VT8251},"
192 			 "{VIA, VT8237A},"
193 			 "{SiS, SIS966},"
194 			 "{ULI, M5461}}");
195 MODULE_DESCRIPTION("Intel HDA driver");
196 
197 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
198 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
199 #define SUPPORT_VGA_SWITCHEROO
200 #endif
201 #endif
202 
203 
204 /*
205  */
206 
207 /* driver types */
208 enum {
209 	AZX_DRIVER_ICH,
210 	AZX_DRIVER_PCH,
211 	AZX_DRIVER_SCH,
212 	AZX_DRIVER_HDMI,
213 	AZX_DRIVER_ATI,
214 	AZX_DRIVER_ATIHDMI,
215 	AZX_DRIVER_ATIHDMI_NS,
216 	AZX_DRIVER_VIA,
217 	AZX_DRIVER_SIS,
218 	AZX_DRIVER_ULI,
219 	AZX_DRIVER_NVIDIA,
220 	AZX_DRIVER_TERA,
221 	AZX_DRIVER_CTX,
222 	AZX_DRIVER_CTHDA,
223 	AZX_DRIVER_GENERIC,
224 	AZX_NUM_DRIVERS, /* keep this as last entry */
225 };
226 
227 /* quirks for Intel PCH */
228 #define AZX_DCAPS_INTEL_PCH_NOPM \
229 	(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_BUFSIZE | \
230 	 AZX_DCAPS_COUNT_LPIB_DELAY)
231 
232 #define AZX_DCAPS_INTEL_PCH \
233 	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
234 
235 #define AZX_DCAPS_INTEL_HASWELL \
236 	(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_ALIGN_BUFSIZE | \
237 	 AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME | \
238 	 AZX_DCAPS_I915_POWERWELL)
239 
240 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
241 #define AZX_DCAPS_INTEL_BROADWELL \
242 	(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_ALIGN_BUFSIZE | \
243 	 AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_PM_RUNTIME | \
244 	 AZX_DCAPS_I915_POWERWELL)
245 
246 /* quirks for ATI SB / AMD Hudson */
247 #define AZX_DCAPS_PRESET_ATI_SB \
248 	(AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
249 	 AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
250 
251 /* quirks for ATI/AMD HDMI */
252 #define AZX_DCAPS_PRESET_ATI_HDMI \
253 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB)
254 
255 /* quirks for Nvidia */
256 #define AZX_DCAPS_PRESET_NVIDIA \
257 	(AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI |\
258 	 AZX_DCAPS_ALIGN_BUFSIZE | AZX_DCAPS_NO_64BIT |\
259 	 AZX_DCAPS_CORBRP_SELF_CLEAR)
260 
261 #define AZX_DCAPS_PRESET_CTHDA \
262 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY)
263 
264 /*
265  * VGA-switcher support
266  */
267 #ifdef SUPPORT_VGA_SWITCHEROO
268 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
269 #else
270 #define use_vga_switcheroo(chip)	0
271 #endif
272 
273 static char *driver_short_names[] = {
274 	[AZX_DRIVER_ICH] = "HDA Intel",
275 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
276 	[AZX_DRIVER_SCH] = "HDA Intel MID",
277 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
278 	[AZX_DRIVER_ATI] = "HDA ATI SB",
279 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
280 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
281 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
282 	[AZX_DRIVER_SIS] = "HDA SIS966",
283 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
284 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
285 	[AZX_DRIVER_TERA] = "HDA Teradici",
286 	[AZX_DRIVER_CTX] = "HDA Creative",
287 	[AZX_DRIVER_CTHDA] = "HDA Creative",
288 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
289 };
290 
291 
292 /* Intel HSW/BDW display HDA controller Extended Mode registers.
293  * EM4 (M value) and EM5 (N Value) are used to convert CDClk (Core Display
294  * Clock) to 24MHz BCLK: BCLK = CDCLK * M / N
295  * The values will be lost when the display power well is disabled.
296  */
297 #define ICH6_REG_EM4			0x100c
298 #define ICH6_REG_EM5			0x1010
299 
300 struct hda_intel {
301 	struct azx chip;
302 
303 	/* HSW/BDW display HDA controller to restore BCLK from CDCLK */
304 	unsigned int bclk_m;
305 	unsigned int bclk_n;
306 };
307 
308 
309 #ifdef CONFIG_X86
310 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on)
311 {
312 	int pages;
313 
314 	if (azx_snoop(chip))
315 		return;
316 	if (!dmab || !dmab->area || !dmab->bytes)
317 		return;
318 
319 #ifdef CONFIG_SND_DMA_SGBUF
320 	if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_SG) {
321 		struct snd_sg_buf *sgbuf = dmab->private_data;
322 		if (on)
323 			set_pages_array_wc(sgbuf->page_table, sgbuf->pages);
324 		else
325 			set_pages_array_wb(sgbuf->page_table, sgbuf->pages);
326 		return;
327 	}
328 #endif
329 
330 	pages = (dmab->bytes + PAGE_SIZE - 1) >> PAGE_SHIFT;
331 	if (on)
332 		set_memory_wc((unsigned long)dmab->area, pages);
333 	else
334 		set_memory_wb((unsigned long)dmab->area, pages);
335 }
336 
337 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
338 				 bool on)
339 {
340 	__mark_pages_wc(chip, buf, on);
341 }
342 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
343 				   struct snd_pcm_substream *substream, bool on)
344 {
345 	if (azx_dev->wc_marked != on) {
346 		__mark_pages_wc(chip, snd_pcm_get_dma_buf(substream), on);
347 		azx_dev->wc_marked = on;
348 	}
349 }
350 #else
351 /* NOP for other archs */
352 static inline void mark_pages_wc(struct azx *chip, struct snd_dma_buffer *buf,
353 				 bool on)
354 {
355 }
356 static inline void mark_runtime_wc(struct azx *chip, struct azx_dev *azx_dev,
357 				   struct snd_pcm_substream *substream, bool on)
358 {
359 }
360 #endif
361 
362 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
363 
364 /*
365  * initialize the PCI registers
366  */
367 /* update bits in a PCI register byte */
368 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
369 			    unsigned char mask, unsigned char val)
370 {
371 	unsigned char data;
372 
373 	pci_read_config_byte(pci, reg, &data);
374 	data &= ~mask;
375 	data |= (val & mask);
376 	pci_write_config_byte(pci, reg, data);
377 }
378 
379 static void azx_init_pci(struct azx *chip)
380 {
381 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
382 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
383 	 * Ensuring these bits are 0 clears playback static on some HD Audio
384 	 * codecs.
385 	 * The PCI register TCSEL is defined in the Intel manuals.
386 	 */
387 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
388 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
389 		update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
390 	}
391 
392 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
393 	 * we need to enable snoop.
394 	 */
395 	if (chip->driver_caps & AZX_DCAPS_ATI_SNOOP) {
396 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
397 			azx_snoop(chip));
398 		update_pci_byte(chip->pci,
399 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
400 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
401 	}
402 
403 	/* For NVIDIA HDA, enable snoop */
404 	if (chip->driver_caps & AZX_DCAPS_NVIDIA_SNOOP) {
405 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
406 			azx_snoop(chip));
407 		update_pci_byte(chip->pci,
408 				NVIDIA_HDA_TRANSREG_ADDR,
409 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
410 		update_pci_byte(chip->pci,
411 				NVIDIA_HDA_ISTRM_COH,
412 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
413 		update_pci_byte(chip->pci,
414 				NVIDIA_HDA_OSTRM_COH,
415 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
416 	}
417 
418 	/* Enable SCH/PCH snoop if needed */
419 	if (chip->driver_caps & AZX_DCAPS_SCH_SNOOP) {
420 		unsigned short snoop;
421 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
422 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
423 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
424 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
425 			if (!azx_snoop(chip))
426 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
427 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
428 			pci_read_config_word(chip->pci,
429 				INTEL_SCH_HDA_DEVC, &snoop);
430 		}
431 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
432 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
433 			"Disabled" : "Enabled");
434         }
435 }
436 
437 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
438 
439 /* called from IRQ */
440 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
441 {
442 	int ok;
443 
444 	ok = azx_position_ok(chip, azx_dev);
445 	if (ok == 1) {
446 		azx_dev->irq_pending = 0;
447 		return ok;
448 	} else if (ok == 0 && chip->bus && chip->bus->workq) {
449 		/* bogus IRQ, process it later */
450 		azx_dev->irq_pending = 1;
451 		queue_work(chip->bus->workq, &chip->irq_pending_work);
452 	}
453 	return 0;
454 }
455 
456 /*
457  * Check whether the current DMA position is acceptable for updating
458  * periods.  Returns non-zero if it's OK.
459  *
460  * Many HD-audio controllers appear pretty inaccurate about
461  * the update-IRQ timing.  The IRQ is issued before actually the
462  * data is processed.  So, we need to process it afterwords in a
463  * workqueue.
464  */
465 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
466 {
467 	u32 wallclk;
468 	unsigned int pos;
469 
470 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->start_wallclk;
471 	if (wallclk < (azx_dev->period_wallclk * 2) / 3)
472 		return -1;	/* bogus (too early) interrupt */
473 
474 	pos = azx_get_position(chip, azx_dev, true);
475 
476 	if (WARN_ONCE(!azx_dev->period_bytes,
477 		      "hda-intel: zero azx_dev->period_bytes"))
478 		return -1; /* this shouldn't happen! */
479 	if (wallclk < (azx_dev->period_wallclk * 5) / 4 &&
480 	    pos % azx_dev->period_bytes > azx_dev->period_bytes / 2)
481 		/* NG - it's below the first next period boundary */
482 		return chip->bdl_pos_adj[chip->dev_index] ? 0 : -1;
483 	azx_dev->start_wallclk += wallclk;
484 	return 1; /* OK, it's fine */
485 }
486 
487 /*
488  * The work for pending PCM period updates.
489  */
490 static void azx_irq_pending_work(struct work_struct *work)
491 {
492 	struct azx *chip = container_of(work, struct azx, irq_pending_work);
493 	int i, pending, ok;
494 
495 	if (!chip->irq_pending_warned) {
496 		dev_info(chip->card->dev,
497 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
498 			 chip->card->number);
499 		chip->irq_pending_warned = 1;
500 	}
501 
502 	for (;;) {
503 		pending = 0;
504 		spin_lock_irq(&chip->reg_lock);
505 		for (i = 0; i < chip->num_streams; i++) {
506 			struct azx_dev *azx_dev = &chip->azx_dev[i];
507 			if (!azx_dev->irq_pending ||
508 			    !azx_dev->substream ||
509 			    !azx_dev->running)
510 				continue;
511 			ok = azx_position_ok(chip, azx_dev);
512 			if (ok > 0) {
513 				azx_dev->irq_pending = 0;
514 				spin_unlock(&chip->reg_lock);
515 				snd_pcm_period_elapsed(azx_dev->substream);
516 				spin_lock(&chip->reg_lock);
517 			} else if (ok < 0) {
518 				pending = 0;	/* too early */
519 			} else
520 				pending++;
521 		}
522 		spin_unlock_irq(&chip->reg_lock);
523 		if (!pending)
524 			return;
525 		msleep(1);
526 	}
527 }
528 
529 /* clear irq_pending flags and assure no on-going workq */
530 static void azx_clear_irq_pending(struct azx *chip)
531 {
532 	int i;
533 
534 	spin_lock_irq(&chip->reg_lock);
535 	for (i = 0; i < chip->num_streams; i++)
536 		chip->azx_dev[i].irq_pending = 0;
537 	spin_unlock_irq(&chip->reg_lock);
538 }
539 
540 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
541 {
542 	if (request_irq(chip->pci->irq, azx_interrupt,
543 			chip->msi ? 0 : IRQF_SHARED,
544 			KBUILD_MODNAME, chip)) {
545 		dev_err(chip->card->dev,
546 			"unable to grab IRQ %d, disabling device\n",
547 			chip->pci->irq);
548 		if (do_disconnect)
549 			snd_card_disconnect(chip->card);
550 		return -1;
551 	}
552 	chip->irq = chip->pci->irq;
553 	pci_intx(chip->pci, !chip->msi);
554 	return 0;
555 }
556 
557 #ifdef CONFIG_PM
558 static DEFINE_MUTEX(card_list_lock);
559 static LIST_HEAD(card_list);
560 
561 static void azx_add_card_list(struct azx *chip)
562 {
563 	mutex_lock(&card_list_lock);
564 	list_add(&chip->list, &card_list);
565 	mutex_unlock(&card_list_lock);
566 }
567 
568 static void azx_del_card_list(struct azx *chip)
569 {
570 	mutex_lock(&card_list_lock);
571 	list_del_init(&chip->list);
572 	mutex_unlock(&card_list_lock);
573 }
574 
575 /* trigger power-save check at writing parameter */
576 static int param_set_xint(const char *val, const struct kernel_param *kp)
577 {
578 	struct azx *chip;
579 	struct hda_codec *c;
580 	int prev = power_save;
581 	int ret = param_set_int(val, kp);
582 
583 	if (ret || prev == power_save)
584 		return ret;
585 
586 	mutex_lock(&card_list_lock);
587 	list_for_each_entry(chip, &card_list, list) {
588 		if (!chip->bus || chip->disabled)
589 			continue;
590 		list_for_each_entry(c, &chip->bus->codec_list, list)
591 			snd_hda_power_sync(c);
592 	}
593 	mutex_unlock(&card_list_lock);
594 	return 0;
595 }
596 #else
597 #define azx_add_card_list(chip) /* NOP */
598 #define azx_del_card_list(chip) /* NOP */
599 #endif /* CONFIG_PM */
600 
601 static void haswell_save_bclk(struct azx *chip)
602 {
603 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
604 
605 	hda->bclk_m = azx_readw(chip, EM4);
606 	hda->bclk_n = azx_readw(chip, EM5);
607 }
608 
609 static void haswell_restore_bclk(struct azx *chip)
610 {
611 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
612 
613 	azx_writew(chip, EM4, hda->bclk_m);
614 	azx_writew(chip, EM5, hda->bclk_n);
615 }
616 
617 #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
618 /*
619  * power management
620  */
621 static int azx_suspend(struct device *dev)
622 {
623 	struct pci_dev *pci = to_pci_dev(dev);
624 	struct snd_card *card = dev_get_drvdata(dev);
625 	struct azx *chip = card->private_data;
626 	struct azx_pcm *p;
627 
628 	if (chip->disabled)
629 		return 0;
630 
631 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
632 	azx_clear_irq_pending(chip);
633 	list_for_each_entry(p, &chip->pcm_list, list)
634 		snd_pcm_suspend_all(p->pcm);
635 	if (chip->initialized)
636 		snd_hda_suspend(chip->bus);
637 	azx_stop_chip(chip);
638 	azx_enter_link_reset(chip);
639 	if (chip->irq >= 0) {
640 		free_irq(chip->irq, chip);
641 		chip->irq = -1;
642 	}
643 
644 	/* Save BCLK M/N values before they become invalid in D3.
645 	 * Will test if display power well can be released now.
646 	 */
647 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
648 		haswell_save_bclk(chip);
649 
650 	if (chip->msi)
651 		pci_disable_msi(chip->pci);
652 	pci_disable_device(pci);
653 	pci_save_state(pci);
654 	pci_set_power_state(pci, PCI_D3hot);
655 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
656 		hda_display_power(false);
657 	return 0;
658 }
659 
660 static int azx_resume(struct device *dev)
661 {
662 	struct pci_dev *pci = to_pci_dev(dev);
663 	struct snd_card *card = dev_get_drvdata(dev);
664 	struct azx *chip = card->private_data;
665 
666 	if (chip->disabled)
667 		return 0;
668 
669 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
670 		hda_display_power(true);
671 		haswell_restore_bclk(chip);
672 	}
673 	pci_set_power_state(pci, PCI_D0);
674 	pci_restore_state(pci);
675 	if (pci_enable_device(pci) < 0) {
676 		dev_err(chip->card->dev,
677 			"pci_enable_device failed, disabling device\n");
678 		snd_card_disconnect(card);
679 		return -EIO;
680 	}
681 	pci_set_master(pci);
682 	if (chip->msi)
683 		if (pci_enable_msi(pci) < 0)
684 			chip->msi = 0;
685 	if (azx_acquire_irq(chip, 1) < 0)
686 		return -EIO;
687 	azx_init_pci(chip);
688 
689 	azx_init_chip(chip, true);
690 
691 	snd_hda_resume(chip->bus);
692 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
693 	return 0;
694 }
695 #endif /* CONFIG_PM_SLEEP || SUPPORT_VGA_SWITCHEROO */
696 
697 #ifdef CONFIG_PM_RUNTIME
698 static int azx_runtime_suspend(struct device *dev)
699 {
700 	struct snd_card *card = dev_get_drvdata(dev);
701 	struct azx *chip = card->private_data;
702 
703 	if (chip->disabled)
704 		return 0;
705 
706 	if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
707 		return 0;
708 
709 	/* enable controller wake up event */
710 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
711 		  STATESTS_INT_MASK);
712 
713 	azx_stop_chip(chip);
714 	azx_enter_link_reset(chip);
715 	azx_clear_irq_pending(chip);
716 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
717 		haswell_save_bclk(chip);
718 		hda_display_power(false);
719 	}
720 	return 0;
721 }
722 
723 static int azx_runtime_resume(struct device *dev)
724 {
725 	struct snd_card *card = dev_get_drvdata(dev);
726 	struct azx *chip = card->private_data;
727 	struct hda_bus *bus;
728 	struct hda_codec *codec;
729 	int status;
730 
731 	if (chip->disabled)
732 		return 0;
733 
734 	if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
735 		return 0;
736 
737 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
738 		hda_display_power(true);
739 		haswell_restore_bclk(chip);
740 	}
741 
742 	/* Read STATESTS before controller reset */
743 	status = azx_readw(chip, STATESTS);
744 
745 	azx_init_pci(chip);
746 	azx_init_chip(chip, true);
747 
748 	bus = chip->bus;
749 	if (status && bus) {
750 		list_for_each_entry(codec, &bus->codec_list, list)
751 			if (status & (1 << codec->addr))
752 				queue_delayed_work(codec->bus->workq,
753 						   &codec->jackpoll_work, codec->jackpoll_interval);
754 	}
755 
756 	/* disable controller Wake Up event*/
757 	azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
758 			~STATESTS_INT_MASK);
759 
760 	return 0;
761 }
762 
763 static int azx_runtime_idle(struct device *dev)
764 {
765 	struct snd_card *card = dev_get_drvdata(dev);
766 	struct azx *chip = card->private_data;
767 
768 	if (chip->disabled)
769 		return 0;
770 
771 	if (!power_save_controller ||
772 	    !(chip->driver_caps & AZX_DCAPS_PM_RUNTIME))
773 		return -EBUSY;
774 
775 	return 0;
776 }
777 
778 #endif /* CONFIG_PM_RUNTIME */
779 
780 #ifdef CONFIG_PM
781 static const struct dev_pm_ops azx_pm = {
782 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
783 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
784 };
785 
786 #define AZX_PM_OPS	&azx_pm
787 #else
788 #define AZX_PM_OPS	NULL
789 #endif /* CONFIG_PM */
790 
791 
792 /*
793  * reboot notifier for hang-up problem at power-down
794  */
795 static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
796 {
797 	struct azx *chip = container_of(nb, struct azx, reboot_notifier);
798 	snd_hda_bus_reboot_notify(chip->bus);
799 	azx_stop_chip(chip);
800 	return NOTIFY_OK;
801 }
802 
803 static void azx_notifier_register(struct azx *chip)
804 {
805 	chip->reboot_notifier.notifier_call = azx_halt;
806 	register_reboot_notifier(&chip->reboot_notifier);
807 }
808 
809 static void azx_notifier_unregister(struct azx *chip)
810 {
811 	if (chip->reboot_notifier.notifier_call)
812 		unregister_reboot_notifier(&chip->reboot_notifier);
813 }
814 
815 static int azx_probe_continue(struct azx *chip);
816 
817 #ifdef SUPPORT_VGA_SWITCHEROO
818 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
819 
820 static void azx_vs_set_state(struct pci_dev *pci,
821 			     enum vga_switcheroo_state state)
822 {
823 	struct snd_card *card = pci_get_drvdata(pci);
824 	struct azx *chip = card->private_data;
825 	bool disabled;
826 
827 	wait_for_completion(&chip->probe_wait);
828 	if (chip->init_failed)
829 		return;
830 
831 	disabled = (state == VGA_SWITCHEROO_OFF);
832 	if (chip->disabled == disabled)
833 		return;
834 
835 	if (!chip->bus) {
836 		chip->disabled = disabled;
837 		if (!disabled) {
838 			dev_info(chip->card->dev,
839 				 "Start delayed initialization\n");
840 			if (azx_probe_continue(chip) < 0) {
841 				dev_err(chip->card->dev, "initialization error\n");
842 				chip->init_failed = true;
843 			}
844 		}
845 	} else {
846 		dev_info(chip->card->dev, "%s via VGA-switcheroo\n",
847 			 disabled ? "Disabling" : "Enabling");
848 		if (disabled) {
849 			pm_runtime_put_sync_suspend(card->dev);
850 			azx_suspend(card->dev);
851 			/* when we get suspended by vga switcheroo we end up in D3cold,
852 			 * however we have no ACPI handle, so pci/acpi can't put us there,
853 			 * put ourselves there */
854 			pci->current_state = PCI_D3cold;
855 			chip->disabled = true;
856 			if (snd_hda_lock_devices(chip->bus))
857 				dev_warn(chip->card->dev,
858 					 "Cannot lock devices!\n");
859 		} else {
860 			snd_hda_unlock_devices(chip->bus);
861 			pm_runtime_get_noresume(card->dev);
862 			chip->disabled = false;
863 			azx_resume(card->dev);
864 		}
865 	}
866 }
867 
868 static bool azx_vs_can_switch(struct pci_dev *pci)
869 {
870 	struct snd_card *card = pci_get_drvdata(pci);
871 	struct azx *chip = card->private_data;
872 
873 	wait_for_completion(&chip->probe_wait);
874 	if (chip->init_failed)
875 		return false;
876 	if (chip->disabled || !chip->bus)
877 		return true;
878 	if (snd_hda_lock_devices(chip->bus))
879 		return false;
880 	snd_hda_unlock_devices(chip->bus);
881 	return true;
882 }
883 
884 static void init_vga_switcheroo(struct azx *chip)
885 {
886 	struct pci_dev *p = get_bound_vga(chip->pci);
887 	if (p) {
888 		dev_info(chip->card->dev,
889 			 "Handle VGA-switcheroo audio client\n");
890 		chip->use_vga_switcheroo = 1;
891 		pci_dev_put(p);
892 	}
893 }
894 
895 static const struct vga_switcheroo_client_ops azx_vs_ops = {
896 	.set_gpu_state = azx_vs_set_state,
897 	.can_switch = azx_vs_can_switch,
898 };
899 
900 static int register_vga_switcheroo(struct azx *chip)
901 {
902 	int err;
903 
904 	if (!chip->use_vga_switcheroo)
905 		return 0;
906 	/* FIXME: currently only handling DIS controller
907 	 * is there any machine with two switchable HDMI audio controllers?
908 	 */
909 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops,
910 						    VGA_SWITCHEROO_DIS,
911 						    chip->bus != NULL);
912 	if (err < 0)
913 		return err;
914 	chip->vga_switcheroo_registered = 1;
915 
916 	/* register as an optimus hdmi audio power domain */
917 	vga_switcheroo_init_domain_pm_optimus_hdmi_audio(chip->card->dev,
918 							 &chip->hdmi_pm_domain);
919 	return 0;
920 }
921 #else
922 #define init_vga_switcheroo(chip)		/* NOP */
923 #define register_vga_switcheroo(chip)		0
924 #define check_hdmi_disabled(pci)	false
925 #endif /* SUPPORT_VGA_SWITCHER */
926 
927 /*
928  * destructor
929  */
930 static int azx_free(struct azx *chip)
931 {
932 	struct pci_dev *pci = chip->pci;
933 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
934 
935 	int i;
936 
937 	if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME)
938 			&& chip->running)
939 		pm_runtime_get_noresume(&pci->dev);
940 
941 	azx_del_card_list(chip);
942 
943 	azx_notifier_unregister(chip);
944 
945 	chip->init_failed = 1; /* to be sure */
946 	complete_all(&chip->probe_wait);
947 
948 	if (use_vga_switcheroo(chip)) {
949 		if (chip->disabled && chip->bus)
950 			snd_hda_unlock_devices(chip->bus);
951 		if (chip->vga_switcheroo_registered)
952 			vga_switcheroo_unregister_client(chip->pci);
953 	}
954 
955 	if (chip->initialized) {
956 		azx_clear_irq_pending(chip);
957 		for (i = 0; i < chip->num_streams; i++)
958 			azx_stream_stop(chip, &chip->azx_dev[i]);
959 		azx_stop_chip(chip);
960 	}
961 
962 	if (chip->irq >= 0)
963 		free_irq(chip->irq, (void*)chip);
964 	if (chip->msi)
965 		pci_disable_msi(chip->pci);
966 	if (chip->remap_addr)
967 		iounmap(chip->remap_addr);
968 
969 	azx_free_stream_pages(chip);
970 	if (chip->region_requested)
971 		pci_release_regions(chip->pci);
972 	pci_disable_device(chip->pci);
973 	kfree(chip->azx_dev);
974 #ifdef CONFIG_SND_HDA_PATCH_LOADER
975 	if (chip->fw)
976 		release_firmware(chip->fw);
977 #endif
978 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
979 		hda_display_power(false);
980 		hda_i915_exit();
981 	}
982 	kfree(hda);
983 
984 	return 0;
985 }
986 
987 static int azx_dev_free(struct snd_device *device)
988 {
989 	return azx_free(device->device_data);
990 }
991 
992 #ifdef SUPPORT_VGA_SWITCHEROO
993 /*
994  * Check of disabled HDMI controller by vga-switcheroo
995  */
996 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
997 {
998 	struct pci_dev *p;
999 
1000 	/* check only discrete GPU */
1001 	switch (pci->vendor) {
1002 	case PCI_VENDOR_ID_ATI:
1003 	case PCI_VENDOR_ID_AMD:
1004 	case PCI_VENDOR_ID_NVIDIA:
1005 		if (pci->devfn == 1) {
1006 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1007 							pci->bus->number, 0);
1008 			if (p) {
1009 				if ((p->class >> 8) == PCI_CLASS_DISPLAY_VGA)
1010 					return p;
1011 				pci_dev_put(p);
1012 			}
1013 		}
1014 		break;
1015 	}
1016 	return NULL;
1017 }
1018 
1019 static bool check_hdmi_disabled(struct pci_dev *pci)
1020 {
1021 	bool vga_inactive = false;
1022 	struct pci_dev *p = get_bound_vga(pci);
1023 
1024 	if (p) {
1025 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1026 			vga_inactive = true;
1027 		pci_dev_put(p);
1028 	}
1029 	return vga_inactive;
1030 }
1031 #endif /* SUPPORT_VGA_SWITCHEROO */
1032 
1033 /*
1034  * white/black-listing for position_fix
1035  */
1036 static struct snd_pci_quirk position_fix_list[] = {
1037 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1038 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1039 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1040 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1041 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1042 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1043 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1044 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1045 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1046 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1047 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1048 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1049 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1050 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1051 	{}
1052 };
1053 
1054 static int check_position_fix(struct azx *chip, int fix)
1055 {
1056 	const struct snd_pci_quirk *q;
1057 
1058 	switch (fix) {
1059 	case POS_FIX_AUTO:
1060 	case POS_FIX_LPIB:
1061 	case POS_FIX_POSBUF:
1062 	case POS_FIX_VIACOMBO:
1063 	case POS_FIX_COMBO:
1064 		return fix;
1065 	}
1066 
1067 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1068 	if (q) {
1069 		dev_info(chip->card->dev,
1070 			 "position_fix set to %d for device %04x:%04x\n",
1071 			 q->value, q->subvendor, q->subdevice);
1072 		return q->value;
1073 	}
1074 
1075 	/* Check VIA/ATI HD Audio Controller exist */
1076 	if (chip->driver_caps & AZX_DCAPS_POSFIX_VIA) {
1077 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1078 		return POS_FIX_VIACOMBO;
1079 	}
1080 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1081 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1082 		return POS_FIX_LPIB;
1083 	}
1084 	return POS_FIX_AUTO;
1085 }
1086 
1087 /*
1088  * black-lists for probe_mask
1089  */
1090 static struct snd_pci_quirk probe_mask_list[] = {
1091 	/* Thinkpad often breaks the controller communication when accessing
1092 	 * to the non-working (or non-existing) modem codec slot.
1093 	 */
1094 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1095 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1096 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1097 	/* broken BIOS */
1098 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1099 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1100 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1101 	/* forced codec slots */
1102 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1103 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1104 	/* WinFast VP200 H (Teradici) user reported broken communication */
1105 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1106 	{}
1107 };
1108 
1109 #define AZX_FORCE_CODEC_MASK	0x100
1110 
1111 static void check_probe_mask(struct azx *chip, int dev)
1112 {
1113 	const struct snd_pci_quirk *q;
1114 
1115 	chip->codec_probe_mask = probe_mask[dev];
1116 	if (chip->codec_probe_mask == -1) {
1117 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1118 		if (q) {
1119 			dev_info(chip->card->dev,
1120 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1121 				 q->value, q->subvendor, q->subdevice);
1122 			chip->codec_probe_mask = q->value;
1123 		}
1124 	}
1125 
1126 	/* check forced option */
1127 	if (chip->codec_probe_mask != -1 &&
1128 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1129 		chip->codec_mask = chip->codec_probe_mask & 0xff;
1130 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1131 			 chip->codec_mask);
1132 	}
1133 }
1134 
1135 /*
1136  * white/black-list for enable_msi
1137  */
1138 static struct snd_pci_quirk msi_black_list[] = {
1139 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1140 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1141 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1142 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1143 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1144 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1145 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1146 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1147 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1148 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1149 	{}
1150 };
1151 
1152 static void check_msi(struct azx *chip)
1153 {
1154 	const struct snd_pci_quirk *q;
1155 
1156 	if (enable_msi >= 0) {
1157 		chip->msi = !!enable_msi;
1158 		return;
1159 	}
1160 	chip->msi = 1;	/* enable MSI as default */
1161 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1162 	if (q) {
1163 		dev_info(chip->card->dev,
1164 			 "msi for device %04x:%04x set to %d\n",
1165 			 q->subvendor, q->subdevice, q->value);
1166 		chip->msi = q->value;
1167 		return;
1168 	}
1169 
1170 	/* NVidia chipsets seem to cause troubles with MSI */
1171 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1172 		dev_info(chip->card->dev, "Disabling MSI\n");
1173 		chip->msi = 0;
1174 	}
1175 }
1176 
1177 /* check the snoop mode availability */
1178 static void azx_check_snoop_available(struct azx *chip)
1179 {
1180 	bool snoop = chip->snoop;
1181 
1182 	switch (chip->driver_type) {
1183 	case AZX_DRIVER_VIA:
1184 		/* force to non-snoop mode for a new VIA controller
1185 		 * when BIOS is set
1186 		 */
1187 		if (snoop) {
1188 			u8 val;
1189 			pci_read_config_byte(chip->pci, 0x42, &val);
1190 			if (!(val & 0x80) && chip->pci->revision == 0x30)
1191 				snoop = false;
1192 		}
1193 		break;
1194 	case AZX_DRIVER_ATIHDMI_NS:
1195 		/* new ATI HDMI requires non-snoop */
1196 		snoop = false;
1197 		break;
1198 	case AZX_DRIVER_CTHDA:
1199 		snoop = false;
1200 		break;
1201 	}
1202 
1203 	if (snoop != chip->snoop) {
1204 		dev_info(chip->card->dev, "Force to %s mode\n",
1205 			 snoop ? "snoop" : "non-snoop");
1206 		chip->snoop = snoop;
1207 	}
1208 }
1209 
1210 static void azx_probe_work(struct work_struct *work)
1211 {
1212 	azx_probe_continue(container_of(work, struct azx, probe_work));
1213 }
1214 
1215 /*
1216  * constructor
1217  */
1218 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1219 		      int dev, unsigned int driver_caps,
1220 		      const struct hda_controller_ops *hda_ops,
1221 		      struct azx **rchip)
1222 {
1223 	static struct snd_device_ops ops = {
1224 		.dev_free = azx_dev_free,
1225 	};
1226 	struct hda_intel *hda;
1227 	struct azx *chip;
1228 	int err;
1229 
1230 	*rchip = NULL;
1231 
1232 	err = pci_enable_device(pci);
1233 	if (err < 0)
1234 		return err;
1235 
1236 	hda = kzalloc(sizeof(*hda), GFP_KERNEL);
1237 	if (!hda) {
1238 		dev_err(card->dev, "Cannot allocate hda\n");
1239 		pci_disable_device(pci);
1240 		return -ENOMEM;
1241 	}
1242 
1243 	chip = &hda->chip;
1244 	spin_lock_init(&chip->reg_lock);
1245 	mutex_init(&chip->open_mutex);
1246 	chip->card = card;
1247 	chip->pci = pci;
1248 	chip->ops = hda_ops;
1249 	chip->irq = -1;
1250 	chip->driver_caps = driver_caps;
1251 	chip->driver_type = driver_caps & 0xff;
1252 	check_msi(chip);
1253 	chip->dev_index = dev;
1254 	chip->jackpoll_ms = jackpoll_ms;
1255 	INIT_WORK(&chip->irq_pending_work, azx_irq_pending_work);
1256 	INIT_LIST_HEAD(&chip->pcm_list);
1257 	INIT_LIST_HEAD(&chip->list);
1258 	init_vga_switcheroo(chip);
1259 	init_completion(&chip->probe_wait);
1260 
1261 	chip->position_fix[0] = chip->position_fix[1] =
1262 		check_position_fix(chip, position_fix[dev]);
1263 	/* combo mode uses LPIB for playback */
1264 	if (chip->position_fix[0] == POS_FIX_COMBO) {
1265 		chip->position_fix[0] = POS_FIX_LPIB;
1266 		chip->position_fix[1] = POS_FIX_AUTO;
1267 	}
1268 
1269 	check_probe_mask(chip, dev);
1270 
1271 	chip->single_cmd = single_cmd;
1272 	chip->snoop = hda_snoop;
1273 	azx_check_snoop_available(chip);
1274 
1275 	if (bdl_pos_adj[dev] < 0) {
1276 		switch (chip->driver_type) {
1277 		case AZX_DRIVER_ICH:
1278 		case AZX_DRIVER_PCH:
1279 			bdl_pos_adj[dev] = 1;
1280 			break;
1281 		default:
1282 			bdl_pos_adj[dev] = 32;
1283 			break;
1284 		}
1285 	}
1286 	chip->bdl_pos_adj = bdl_pos_adj;
1287 
1288 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1289 	if (err < 0) {
1290 		dev_err(card->dev, "Error creating device [card]!\n");
1291 		azx_free(chip);
1292 		return err;
1293 	}
1294 
1295 	/* continue probing in work context as may trigger request module */
1296 	INIT_WORK(&chip->probe_work, azx_probe_work);
1297 
1298 	*rchip = chip;
1299 
1300 	return 0;
1301 }
1302 
1303 static int azx_first_init(struct azx *chip)
1304 {
1305 	int dev = chip->dev_index;
1306 	struct pci_dev *pci = chip->pci;
1307 	struct snd_card *card = chip->card;
1308 	int err;
1309 	unsigned short gcap;
1310 
1311 #if BITS_PER_LONG != 64
1312 	/* Fix up base address on ULI M5461 */
1313 	if (chip->driver_type == AZX_DRIVER_ULI) {
1314 		u16 tmp3;
1315 		pci_read_config_word(pci, 0x40, &tmp3);
1316 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1317 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1318 	}
1319 #endif
1320 
1321 	err = pci_request_regions(pci, "ICH HD audio");
1322 	if (err < 0)
1323 		return err;
1324 	chip->region_requested = 1;
1325 
1326 	chip->addr = pci_resource_start(pci, 0);
1327 	chip->remap_addr = pci_ioremap_bar(pci, 0);
1328 	if (chip->remap_addr == NULL) {
1329 		dev_err(card->dev, "ioremap error\n");
1330 		return -ENXIO;
1331 	}
1332 
1333 	if (chip->msi)
1334 		if (pci_enable_msi(pci) < 0)
1335 			chip->msi = 0;
1336 
1337 	if (azx_acquire_irq(chip, 0) < 0)
1338 		return -EBUSY;
1339 
1340 	pci_set_master(pci);
1341 	synchronize_irq(chip->irq);
1342 
1343 	gcap = azx_readw(chip, GCAP);
1344 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1345 
1346 	/* disable SB600 64bit support for safety */
1347 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1348 		struct pci_dev *p_smbus;
1349 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1350 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1351 					 NULL);
1352 		if (p_smbus) {
1353 			if (p_smbus->revision < 0x30)
1354 				gcap &= ~ICH6_GCAP_64OK;
1355 			pci_dev_put(p_smbus);
1356 		}
1357 	}
1358 
1359 	/* disable 64bit DMA address on some devices */
1360 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1361 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1362 		gcap &= ~ICH6_GCAP_64OK;
1363 	}
1364 
1365 	/* disable buffer size rounding to 128-byte multiples if supported */
1366 	if (align_buffer_size >= 0)
1367 		chip->align_buffer_size = !!align_buffer_size;
1368 	else {
1369 		if (chip->driver_caps & AZX_DCAPS_BUFSIZE)
1370 			chip->align_buffer_size = 0;
1371 		else if (chip->driver_caps & AZX_DCAPS_ALIGN_BUFSIZE)
1372 			chip->align_buffer_size = 1;
1373 		else
1374 			chip->align_buffer_size = 1;
1375 	}
1376 
1377 	/* allow 64bit DMA address if supported by H/W */
1378 	if ((gcap & ICH6_GCAP_64OK) && !pci_set_dma_mask(pci, DMA_BIT_MASK(64)))
1379 		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(64));
1380 	else {
1381 		pci_set_dma_mask(pci, DMA_BIT_MASK(32));
1382 		pci_set_consistent_dma_mask(pci, DMA_BIT_MASK(32));
1383 	}
1384 
1385 	/* read number of streams from GCAP register instead of using
1386 	 * hardcoded value
1387 	 */
1388 	chip->capture_streams = (gcap >> 8) & 0x0f;
1389 	chip->playback_streams = (gcap >> 12) & 0x0f;
1390 	if (!chip->playback_streams && !chip->capture_streams) {
1391 		/* gcap didn't give any info, switching to old method */
1392 
1393 		switch (chip->driver_type) {
1394 		case AZX_DRIVER_ULI:
1395 			chip->playback_streams = ULI_NUM_PLAYBACK;
1396 			chip->capture_streams = ULI_NUM_CAPTURE;
1397 			break;
1398 		case AZX_DRIVER_ATIHDMI:
1399 		case AZX_DRIVER_ATIHDMI_NS:
1400 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1401 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1402 			break;
1403 		case AZX_DRIVER_GENERIC:
1404 		default:
1405 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1406 			chip->capture_streams = ICH6_NUM_CAPTURE;
1407 			break;
1408 		}
1409 	}
1410 	chip->capture_index_offset = 0;
1411 	chip->playback_index_offset = chip->capture_streams;
1412 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1413 	chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
1414 				GFP_KERNEL);
1415 	if (!chip->azx_dev) {
1416 		dev_err(card->dev, "cannot malloc azx_dev\n");
1417 		return -ENOMEM;
1418 	}
1419 
1420 	err = azx_alloc_stream_pages(chip);
1421 	if (err < 0)
1422 		return err;
1423 
1424 	/* initialize streams */
1425 	azx_init_stream(chip);
1426 
1427 	/* initialize chip */
1428 	azx_init_pci(chip);
1429 	azx_init_chip(chip, (probe_only[dev] & 2) == 0);
1430 
1431 	/* codec detection */
1432 	if (!chip->codec_mask) {
1433 		dev_err(card->dev, "no codecs found!\n");
1434 		return -ENODEV;
1435 	}
1436 
1437 	strcpy(card->driver, "HDA-Intel");
1438 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
1439 		sizeof(card->shortname));
1440 	snprintf(card->longname, sizeof(card->longname),
1441 		 "%s at 0x%lx irq %i",
1442 		 card->shortname, chip->addr, chip->irq);
1443 
1444 	return 0;
1445 }
1446 
1447 static void power_down_all_codecs(struct azx *chip)
1448 {
1449 #ifdef CONFIG_PM
1450 	/* The codecs were powered up in snd_hda_codec_new().
1451 	 * Now all initialization done, so turn them down if possible
1452 	 */
1453 	struct hda_codec *codec;
1454 	list_for_each_entry(codec, &chip->bus->codec_list, list) {
1455 		snd_hda_power_down(codec);
1456 	}
1457 #endif
1458 }
1459 
1460 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1461 /* callback from request_firmware_nowait() */
1462 static void azx_firmware_cb(const struct firmware *fw, void *context)
1463 {
1464 	struct snd_card *card = context;
1465 	struct azx *chip = card->private_data;
1466 	struct pci_dev *pci = chip->pci;
1467 
1468 	if (!fw) {
1469 		dev_err(card->dev, "Cannot load firmware, aborting\n");
1470 		goto error;
1471 	}
1472 
1473 	chip->fw = fw;
1474 	if (!chip->disabled) {
1475 		/* continue probing */
1476 		if (azx_probe_continue(chip))
1477 			goto error;
1478 	}
1479 	return; /* OK */
1480 
1481  error:
1482 	snd_card_free(card);
1483 	pci_set_drvdata(pci, NULL);
1484 }
1485 #endif
1486 
1487 /*
1488  * HDA controller ops.
1489  */
1490 
1491 /* PCI register access. */
1492 static void pci_azx_writel(u32 value, u32 __iomem *addr)
1493 {
1494 	writel(value, addr);
1495 }
1496 
1497 static u32 pci_azx_readl(u32 __iomem *addr)
1498 {
1499 	return readl(addr);
1500 }
1501 
1502 static void pci_azx_writew(u16 value, u16 __iomem *addr)
1503 {
1504 	writew(value, addr);
1505 }
1506 
1507 static u16 pci_azx_readw(u16 __iomem *addr)
1508 {
1509 	return readw(addr);
1510 }
1511 
1512 static void pci_azx_writeb(u8 value, u8 __iomem *addr)
1513 {
1514 	writeb(value, addr);
1515 }
1516 
1517 static u8 pci_azx_readb(u8 __iomem *addr)
1518 {
1519 	return readb(addr);
1520 }
1521 
1522 static int disable_msi_reset_irq(struct azx *chip)
1523 {
1524 	int err;
1525 
1526 	free_irq(chip->irq, chip);
1527 	chip->irq = -1;
1528 	pci_disable_msi(chip->pci);
1529 	chip->msi = 0;
1530 	err = azx_acquire_irq(chip, 1);
1531 	if (err < 0)
1532 		return err;
1533 
1534 	return 0;
1535 }
1536 
1537 /* DMA page allocation helpers.  */
1538 static int dma_alloc_pages(struct azx *chip,
1539 			   int type,
1540 			   size_t size,
1541 			   struct snd_dma_buffer *buf)
1542 {
1543 	int err;
1544 
1545 	err = snd_dma_alloc_pages(type,
1546 				  chip->card->dev,
1547 				  size, buf);
1548 	if (err < 0)
1549 		return err;
1550 	mark_pages_wc(chip, buf, true);
1551 	return 0;
1552 }
1553 
1554 static void dma_free_pages(struct azx *chip, struct snd_dma_buffer *buf)
1555 {
1556 	mark_pages_wc(chip, buf, false);
1557 	snd_dma_free_pages(buf);
1558 }
1559 
1560 static int substream_alloc_pages(struct azx *chip,
1561 				 struct snd_pcm_substream *substream,
1562 				 size_t size)
1563 {
1564 	struct azx_dev *azx_dev = get_azx_dev(substream);
1565 	int ret;
1566 
1567 	mark_runtime_wc(chip, azx_dev, substream, false);
1568 	azx_dev->bufsize = 0;
1569 	azx_dev->period_bytes = 0;
1570 	azx_dev->format_val = 0;
1571 	ret = snd_pcm_lib_malloc_pages(substream, size);
1572 	if (ret < 0)
1573 		return ret;
1574 	mark_runtime_wc(chip, azx_dev, substream, true);
1575 	return 0;
1576 }
1577 
1578 static int substream_free_pages(struct azx *chip,
1579 				struct snd_pcm_substream *substream)
1580 {
1581 	struct azx_dev *azx_dev = get_azx_dev(substream);
1582 	mark_runtime_wc(chip, azx_dev, substream, false);
1583 	return snd_pcm_lib_free_pages(substream);
1584 }
1585 
1586 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
1587 			     struct vm_area_struct *area)
1588 {
1589 #ifdef CONFIG_X86
1590 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
1591 	struct azx *chip = apcm->chip;
1592 	if (!azx_snoop(chip))
1593 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
1594 #endif
1595 }
1596 
1597 static const struct hda_controller_ops pci_hda_ops = {
1598 	.reg_writel = pci_azx_writel,
1599 	.reg_readl = pci_azx_readl,
1600 	.reg_writew = pci_azx_writew,
1601 	.reg_readw = pci_azx_readw,
1602 	.reg_writeb = pci_azx_writeb,
1603 	.reg_readb = pci_azx_readb,
1604 	.disable_msi_reset_irq = disable_msi_reset_irq,
1605 	.dma_alloc_pages = dma_alloc_pages,
1606 	.dma_free_pages = dma_free_pages,
1607 	.substream_alloc_pages = substream_alloc_pages,
1608 	.substream_free_pages = substream_free_pages,
1609 	.pcm_mmap_prepare = pcm_mmap_prepare,
1610 	.position_check = azx_position_check,
1611 };
1612 
1613 static int azx_probe(struct pci_dev *pci,
1614 		     const struct pci_device_id *pci_id)
1615 {
1616 	static int dev;
1617 	struct snd_card *card;
1618 	struct azx *chip;
1619 	bool schedule_probe;
1620 	int err;
1621 
1622 	if (dev >= SNDRV_CARDS)
1623 		return -ENODEV;
1624 	if (!enable[dev]) {
1625 		dev++;
1626 		return -ENOENT;
1627 	}
1628 
1629 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
1630 			   0, &card);
1631 	if (err < 0) {
1632 		dev_err(&pci->dev, "Error creating card!\n");
1633 		return err;
1634 	}
1635 
1636 	err = azx_create(card, pci, dev, pci_id->driver_data,
1637 			 &pci_hda_ops, &chip);
1638 	if (err < 0)
1639 		goto out_free;
1640 	card->private_data = chip;
1641 
1642 	pci_set_drvdata(pci, card);
1643 
1644 	err = register_vga_switcheroo(chip);
1645 	if (err < 0) {
1646 		dev_err(card->dev, "Error registering VGA-switcheroo client\n");
1647 		goto out_free;
1648 	}
1649 
1650 	if (check_hdmi_disabled(pci)) {
1651 		dev_info(card->dev, "VGA controller is disabled\n");
1652 		dev_info(card->dev, "Delaying initialization\n");
1653 		chip->disabled = true;
1654 	}
1655 
1656 	schedule_probe = !chip->disabled;
1657 
1658 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1659 	if (patch[dev] && *patch[dev]) {
1660 		dev_info(card->dev, "Applying patch firmware '%s'\n",
1661 			 patch[dev]);
1662 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
1663 					      &pci->dev, GFP_KERNEL, card,
1664 					      azx_firmware_cb);
1665 		if (err < 0)
1666 			goto out_free;
1667 		schedule_probe = false; /* continued in azx_firmware_cb() */
1668 	}
1669 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
1670 
1671 #ifndef CONFIG_SND_HDA_I915
1672 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
1673 		dev_err(card->dev, "Haswell must build in CONFIG_SND_HDA_I915\n");
1674 #endif
1675 
1676 	if (schedule_probe)
1677 		schedule_work(&chip->probe_work);
1678 
1679 	dev++;
1680 	if (chip->disabled)
1681 		complete_all(&chip->probe_wait);
1682 	return 0;
1683 
1684 out_free:
1685 	snd_card_free(card);
1686 	return err;
1687 }
1688 
1689 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
1690 static unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
1691 	[AZX_DRIVER_NVIDIA] = 8,
1692 	[AZX_DRIVER_TERA] = 1,
1693 };
1694 
1695 static int azx_probe_continue(struct azx *chip)
1696 {
1697 	struct pci_dev *pci = chip->pci;
1698 	int dev = chip->dev_index;
1699 	int err;
1700 
1701 	/* Request power well for Haswell HDA controller and codec */
1702 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
1703 #ifdef CONFIG_SND_HDA_I915
1704 		err = hda_i915_init();
1705 		if (err < 0) {
1706 			dev_err(chip->card->dev,
1707 				"Error request power-well from i915\n");
1708 			goto out_free;
1709 		}
1710 		err = hda_display_power(true);
1711 		if (err < 0) {
1712 			dev_err(chip->card->dev,
1713 				"Cannot turn on display power on i915\n");
1714 			goto out_free;
1715 		}
1716 #endif
1717 	}
1718 
1719 	err = azx_first_init(chip);
1720 	if (err < 0)
1721 		goto out_free;
1722 
1723 #ifdef CONFIG_SND_HDA_INPUT_BEEP
1724 	chip->beep_mode = beep_mode[dev];
1725 #endif
1726 
1727 	/* create codec instances */
1728 	err = azx_codec_create(chip, model[dev],
1729 			       azx_max_codecs[chip->driver_type],
1730 			       power_save_addr);
1731 
1732 	if (err < 0)
1733 		goto out_free;
1734 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1735 	if (chip->fw) {
1736 		err = snd_hda_load_patch(chip->bus, chip->fw->size,
1737 					 chip->fw->data);
1738 		if (err < 0)
1739 			goto out_free;
1740 #ifndef CONFIG_PM
1741 		release_firmware(chip->fw); /* no longer needed */
1742 		chip->fw = NULL;
1743 #endif
1744 	}
1745 #endif
1746 	if ((probe_only[dev] & 1) == 0) {
1747 		err = azx_codec_configure(chip);
1748 		if (err < 0)
1749 			goto out_free;
1750 	}
1751 
1752 	/* create PCM streams */
1753 	err = snd_hda_build_pcms(chip->bus);
1754 	if (err < 0)
1755 		goto out_free;
1756 
1757 	/* create mixer controls */
1758 	err = azx_mixer_create(chip);
1759 	if (err < 0)
1760 		goto out_free;
1761 
1762 	err = snd_card_register(chip->card);
1763 	if (err < 0)
1764 		goto out_free;
1765 
1766 	chip->running = 1;
1767 	power_down_all_codecs(chip);
1768 	azx_notifier_register(chip);
1769 	azx_add_card_list(chip);
1770 	if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) || chip->use_vga_switcheroo)
1771 		pm_runtime_put_noidle(&pci->dev);
1772 
1773 out_free:
1774 	if (err < 0)
1775 		chip->init_failed = 1;
1776 	complete_all(&chip->probe_wait);
1777 	return err;
1778 }
1779 
1780 static void azx_remove(struct pci_dev *pci)
1781 {
1782 	struct snd_card *card = pci_get_drvdata(pci);
1783 
1784 	if (card)
1785 		snd_card_free(card);
1786 }
1787 
1788 /* PCI IDs */
1789 static const struct pci_device_id azx_ids[] = {
1790 	/* CPT */
1791 	{ PCI_DEVICE(0x8086, 0x1c20),
1792 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
1793 	/* PBG */
1794 	{ PCI_DEVICE(0x8086, 0x1d20),
1795 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
1796 	/* Panther Point */
1797 	{ PCI_DEVICE(0x8086, 0x1e20),
1798 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1799 	/* Lynx Point */
1800 	{ PCI_DEVICE(0x8086, 0x8c20),
1801 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1802 	/* 9 Series */
1803 	{ PCI_DEVICE(0x8086, 0x8ca0),
1804 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1805 	/* Wellsburg */
1806 	{ PCI_DEVICE(0x8086, 0x8d20),
1807 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1808 	{ PCI_DEVICE(0x8086, 0x8d21),
1809 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1810 	/* Lynx Point-LP */
1811 	{ PCI_DEVICE(0x8086, 0x9c20),
1812 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1813 	/* Lynx Point-LP */
1814 	{ PCI_DEVICE(0x8086, 0x9c21),
1815 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1816 	/* Wildcat Point-LP */
1817 	{ PCI_DEVICE(0x8086, 0x9ca0),
1818 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
1819 	/* Haswell */
1820 	{ PCI_DEVICE(0x8086, 0x0a0c),
1821 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
1822 	{ PCI_DEVICE(0x8086, 0x0c0c),
1823 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
1824 	{ PCI_DEVICE(0x8086, 0x0d0c),
1825 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
1826 	/* Broadwell */
1827 	{ PCI_DEVICE(0x8086, 0x160c),
1828 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
1829 	/* 5 Series/3400 */
1830 	{ PCI_DEVICE(0x8086, 0x3b56),
1831 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
1832 	/* Poulsbo */
1833 	{ PCI_DEVICE(0x8086, 0x811b),
1834 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
1835 	/* Oaktrail */
1836 	{ PCI_DEVICE(0x8086, 0x080a),
1837 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
1838 	/* BayTrail */
1839 	{ PCI_DEVICE(0x8086, 0x0f04),
1840 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
1841 	/* ICH */
1842 	{ PCI_DEVICE(0x8086, 0x2668),
1843 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1844 	  AZX_DCAPS_BUFSIZE },  /* ICH6 */
1845 	{ PCI_DEVICE(0x8086, 0x27d8),
1846 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1847 	  AZX_DCAPS_BUFSIZE },  /* ICH7 */
1848 	{ PCI_DEVICE(0x8086, 0x269a),
1849 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1850 	  AZX_DCAPS_BUFSIZE },  /* ESB2 */
1851 	{ PCI_DEVICE(0x8086, 0x284b),
1852 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1853 	  AZX_DCAPS_BUFSIZE },  /* ICH8 */
1854 	{ PCI_DEVICE(0x8086, 0x293e),
1855 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1856 	  AZX_DCAPS_BUFSIZE },  /* ICH9 */
1857 	{ PCI_DEVICE(0x8086, 0x293f),
1858 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1859 	  AZX_DCAPS_BUFSIZE },  /* ICH9 */
1860 	{ PCI_DEVICE(0x8086, 0x3a3e),
1861 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1862 	  AZX_DCAPS_BUFSIZE },  /* ICH10 */
1863 	{ PCI_DEVICE(0x8086, 0x3a6e),
1864 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_OLD_SSYNC |
1865 	  AZX_DCAPS_BUFSIZE },  /* ICH10 */
1866 	/* Generic Intel */
1867 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
1868 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
1869 	  .class_mask = 0xffffff,
1870 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_BUFSIZE },
1871 	/* ATI SB 450/600/700/800/900 */
1872 	{ PCI_DEVICE(0x1002, 0x437b),
1873 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
1874 	{ PCI_DEVICE(0x1002, 0x4383),
1875 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
1876 	/* AMD Hudson */
1877 	{ PCI_DEVICE(0x1022, 0x780d),
1878 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
1879 	/* ATI HDMI */
1880 	{ PCI_DEVICE(0x1002, 0x793b),
1881 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1882 	{ PCI_DEVICE(0x1002, 0x7919),
1883 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1884 	{ PCI_DEVICE(0x1002, 0x960f),
1885 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1886 	{ PCI_DEVICE(0x1002, 0x970f),
1887 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1888 	{ PCI_DEVICE(0x1002, 0xaa00),
1889 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1890 	{ PCI_DEVICE(0x1002, 0xaa08),
1891 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1892 	{ PCI_DEVICE(0x1002, 0xaa10),
1893 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1894 	{ PCI_DEVICE(0x1002, 0xaa18),
1895 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1896 	{ PCI_DEVICE(0x1002, 0xaa20),
1897 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1898 	{ PCI_DEVICE(0x1002, 0xaa28),
1899 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1900 	{ PCI_DEVICE(0x1002, 0xaa30),
1901 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1902 	{ PCI_DEVICE(0x1002, 0xaa38),
1903 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1904 	{ PCI_DEVICE(0x1002, 0xaa40),
1905 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1906 	{ PCI_DEVICE(0x1002, 0xaa48),
1907 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1908 	{ PCI_DEVICE(0x1002, 0xaa50),
1909 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1910 	{ PCI_DEVICE(0x1002, 0xaa58),
1911 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1912 	{ PCI_DEVICE(0x1002, 0xaa60),
1913 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1914 	{ PCI_DEVICE(0x1002, 0xaa68),
1915 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1916 	{ PCI_DEVICE(0x1002, 0xaa80),
1917 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1918 	{ PCI_DEVICE(0x1002, 0xaa88),
1919 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1920 	{ PCI_DEVICE(0x1002, 0xaa90),
1921 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1922 	{ PCI_DEVICE(0x1002, 0xaa98),
1923 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
1924 	{ PCI_DEVICE(0x1002, 0x9902),
1925 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
1926 	{ PCI_DEVICE(0x1002, 0xaaa0),
1927 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
1928 	{ PCI_DEVICE(0x1002, 0xaaa8),
1929 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
1930 	{ PCI_DEVICE(0x1002, 0xaab0),
1931 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
1932 	/* VIA VT8251/VT8237A */
1933 	{ PCI_DEVICE(0x1106, 0x3288),
1934 	  .driver_data = AZX_DRIVER_VIA | AZX_DCAPS_POSFIX_VIA },
1935 	/* VIA GFX VT7122/VX900 */
1936 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
1937 	/* VIA GFX VT6122/VX11 */
1938 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
1939 	/* SIS966 */
1940 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
1941 	/* ULI M5461 */
1942 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
1943 	/* NVIDIA MCP */
1944 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1945 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
1946 	  .class_mask = 0xffffff,
1947 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
1948 	/* Teradici */
1949 	{ PCI_DEVICE(0x6549, 0x1200),
1950 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
1951 	{ PCI_DEVICE(0x6549, 0x2200),
1952 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
1953 	/* Creative X-Fi (CA0110-IBG) */
1954 	/* CTHDA chips */
1955 	{ PCI_DEVICE(0x1102, 0x0010),
1956 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
1957 	{ PCI_DEVICE(0x1102, 0x0012),
1958 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
1959 #if !IS_ENABLED(CONFIG_SND_CTXFI)
1960 	/* the following entry conflicts with snd-ctxfi driver,
1961 	 * as ctxfi driver mutates from HD-audio to native mode with
1962 	 * a special command sequence.
1963 	 */
1964 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
1965 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
1966 	  .class_mask = 0xffffff,
1967 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
1968 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
1969 #else
1970 	/* this entry seems still valid -- i.e. without emu20kx chip */
1971 	{ PCI_DEVICE(0x1102, 0x0009),
1972 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
1973 	  AZX_DCAPS_RIRB_PRE_DELAY | AZX_DCAPS_POSFIX_LPIB },
1974 #endif
1975 	/* Vortex86MX */
1976 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
1977 	/* VMware HDAudio */
1978 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
1979 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
1980 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
1981 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
1982 	  .class_mask = 0xffffff,
1983 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
1984 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
1985 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
1986 	  .class_mask = 0xffffff,
1987 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
1988 	{ 0, }
1989 };
1990 MODULE_DEVICE_TABLE(pci, azx_ids);
1991 
1992 /* pci_driver definition */
1993 static struct pci_driver azx_driver = {
1994 	.name = KBUILD_MODNAME,
1995 	.id_table = azx_ids,
1996 	.probe = azx_probe,
1997 	.remove = azx_remove,
1998 	.driver = {
1999 		.pm = AZX_PM_OPS,
2000 	},
2001 };
2002 
2003 module_pci_driver(azx_driver);
2004