xref: /openbmc/linux/sound/pci/hda/hda_intel.c (revision 337cbeb2)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *
4  *  hda_intel.c - Implementation of primary alsa driver code base
5  *                for Intel HD Audio.
6  *
7  *  Copyright(c) 2004 Intel Corporation. All rights reserved.
8  *
9  *  Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
10  *                     PeiSen Hou <pshou@realtek.com.tw>
11  *
12  *  CONTACTS:
13  *
14  *  Matt Jared		matt.jared@intel.com
15  *  Andy Kopp		andy.kopp@intel.com
16  *  Dan Kogan		dan.d.kogan@intel.com
17  *
18  *  CHANGES:
19  *
20  *  2004.12.01	Major rewrite by tiwai, merged the work of pshou
21  */
22 
23 #include <linux/delay.h>
24 #include <linux/interrupt.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/dma-mapping.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/slab.h>
31 #include <linux/pci.h>
32 #include <linux/mutex.h>
33 #include <linux/io.h>
34 #include <linux/pm_runtime.h>
35 #include <linux/clocksource.h>
36 #include <linux/time.h>
37 #include <linux/completion.h>
38 #include <linux/acpi.h>
39 
40 #ifdef CONFIG_X86
41 /* for snoop control */
42 #include <asm/pgtable.h>
43 #include <asm/set_memory.h>
44 #include <asm/cpufeature.h>
45 #endif
46 #include <sound/core.h>
47 #include <sound/initval.h>
48 #include <sound/hdaudio.h>
49 #include <sound/hda_i915.h>
50 #include <sound/intel-dsp-config.h>
51 #include <linux/vgaarb.h>
52 #include <linux/vga_switcheroo.h>
53 #include <linux/firmware.h>
54 #include <sound/hda_codec.h>
55 #include "hda_controller.h"
56 #include "hda_intel.h"
57 
58 #define CREATE_TRACE_POINTS
59 #include "hda_intel_trace.h"
60 
61 /* position fix mode */
62 enum {
63 	POS_FIX_AUTO,
64 	POS_FIX_LPIB,
65 	POS_FIX_POSBUF,
66 	POS_FIX_VIACOMBO,
67 	POS_FIX_COMBO,
68 	POS_FIX_SKL,
69 	POS_FIX_FIFO,
70 };
71 
72 /* Defines for ATI HD Audio support in SB450 south bridge */
73 #define ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR   0x42
74 #define ATI_SB450_HDAUDIO_ENABLE_SNOOP      0x02
75 
76 /* Defines for Nvidia HDA support */
77 #define NVIDIA_HDA_TRANSREG_ADDR      0x4e
78 #define NVIDIA_HDA_ENABLE_COHBITS     0x0f
79 #define NVIDIA_HDA_ISTRM_COH          0x4d
80 #define NVIDIA_HDA_OSTRM_COH          0x4c
81 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
82 
83 /* Defines for Intel SCH HDA snoop control */
84 #define INTEL_HDA_CGCTL	 0x48
85 #define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
86 #define INTEL_SCH_HDA_DEVC      0x78
87 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
88 
89 /* Define VIA HD Audio Device ID*/
90 #define VIA_HDAC_DEVICE_ID		0x3288
91 
92 /* max number of SDs */
93 /* ICH, ATI and VIA have 4 playback and 4 capture */
94 #define ICH6_NUM_CAPTURE	4
95 #define ICH6_NUM_PLAYBACK	4
96 
97 /* ULI has 6 playback and 5 capture */
98 #define ULI_NUM_CAPTURE		5
99 #define ULI_NUM_PLAYBACK	6
100 
101 /* ATI HDMI may have up to 8 playbacks and 0 capture */
102 #define ATIHDMI_NUM_CAPTURE	0
103 #define ATIHDMI_NUM_PLAYBACK	8
104 
105 /* TERA has 4 playback and 3 capture */
106 #define TERA_NUM_CAPTURE	3
107 #define TERA_NUM_PLAYBACK	4
108 
109 
110 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
111 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
112 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
113 static char *model[SNDRV_CARDS];
114 static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
115 static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
116 static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
117 static int probe_only[SNDRV_CARDS];
118 static int jackpoll_ms[SNDRV_CARDS];
119 static int single_cmd = -1;
120 static int enable_msi = -1;
121 #ifdef CONFIG_SND_HDA_PATCH_LOADER
122 static char *patch[SNDRV_CARDS];
123 #endif
124 #ifdef CONFIG_SND_HDA_INPUT_BEEP
125 static bool beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
126 					CONFIG_SND_HDA_INPUT_BEEP_MODE};
127 #endif
128 static bool dmic_detect = 1;
129 
130 module_param_array(index, int, NULL, 0444);
131 MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
132 module_param_array(id, charp, NULL, 0444);
133 MODULE_PARM_DESC(id, "ID string for Intel HD audio interface.");
134 module_param_array(enable, bool, NULL, 0444);
135 MODULE_PARM_DESC(enable, "Enable Intel HD audio interface.");
136 module_param_array(model, charp, NULL, 0444);
137 MODULE_PARM_DESC(model, "Use the given board model.");
138 module_param_array(position_fix, int, NULL, 0444);
139 MODULE_PARM_DESC(position_fix, "DMA pointer read method."
140 		 "(-1 = system default, 0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO, 5 = SKL+, 6 = FIFO).");
141 module_param_array(bdl_pos_adj, int, NULL, 0644);
142 MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
143 module_param_array(probe_mask, int, NULL, 0444);
144 MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");
145 module_param_array(probe_only, int, NULL, 0444);
146 MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");
147 module_param_array(jackpoll_ms, int, NULL, 0444);
148 MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");
149 module_param(single_cmd, bint, 0444);
150 MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "
151 		 "(for debugging only).");
152 module_param(enable_msi, bint, 0444);
153 MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
154 #ifdef CONFIG_SND_HDA_PATCH_LOADER
155 module_param_array(patch, charp, NULL, 0444);
156 MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
157 #endif
158 #ifdef CONFIG_SND_HDA_INPUT_BEEP
159 module_param_array(beep_mode, bool, NULL, 0444);
160 MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
161 			    "(0=off, 1=on) (default=1).");
162 #endif
163 module_param(dmic_detect, bool, 0444);
164 MODULE_PARM_DESC(dmic_detect, "Allow DSP driver selection (bypass this driver) "
165 			     "(0=off, 1=on) (default=1); "
166 		 "deprecated, use snd-intel-dspcfg.dsp_driver option instead");
167 
168 #ifdef CONFIG_PM
169 static int param_set_xint(const char *val, const struct kernel_param *kp);
170 static const struct kernel_param_ops param_ops_xint = {
171 	.set = param_set_xint,
172 	.get = param_get_int,
173 };
174 #define param_check_xint param_check_int
175 
176 static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
177 module_param(power_save, xint, 0644);
178 MODULE_PARM_DESC(power_save, "Automatic power-saving timeout "
179 		 "(in second, 0 = disable).");
180 
181 static bool pm_blacklist = true;
182 module_param(pm_blacklist, bool, 0644);
183 MODULE_PARM_DESC(pm_blacklist, "Enable power-management blacklist");
184 
185 /* reset the HD-audio controller in power save mode.
186  * this may give more power-saving, but will take longer time to
187  * wake up.
188  */
189 static bool power_save_controller = 1;
190 module_param(power_save_controller, bool, 0644);
191 MODULE_PARM_DESC(power_save_controller, "Reset controller in power save mode.");
192 #else
193 #define power_save	0
194 #endif /* CONFIG_PM */
195 
196 static int align_buffer_size = -1;
197 module_param(align_buffer_size, bint, 0644);
198 MODULE_PARM_DESC(align_buffer_size,
199 		"Force buffer and period sizes to be multiple of 128 bytes.");
200 
201 #ifdef CONFIG_X86
202 static int hda_snoop = -1;
203 module_param_named(snoop, hda_snoop, bint, 0444);
204 MODULE_PARM_DESC(snoop, "Enable/disable snooping");
205 #else
206 #define hda_snoop		true
207 #endif
208 
209 
210 MODULE_LICENSE("GPL");
211 MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
212 			 "{Intel, ICH6M},"
213 			 "{Intel, ICH7},"
214 			 "{Intel, ESB2},"
215 			 "{Intel, ICH8},"
216 			 "{Intel, ICH9},"
217 			 "{Intel, ICH10},"
218 			 "{Intel, PCH},"
219 			 "{Intel, CPT},"
220 			 "{Intel, PPT},"
221 			 "{Intel, LPT},"
222 			 "{Intel, LPT_LP},"
223 			 "{Intel, WPT_LP},"
224 			 "{Intel, SPT},"
225 			 "{Intel, SPT_LP},"
226 			 "{Intel, HPT},"
227 			 "{Intel, PBG},"
228 			 "{Intel, SCH},"
229 			 "{ATI, SB450},"
230 			 "{ATI, SB600},"
231 			 "{ATI, RS600},"
232 			 "{ATI, RS690},"
233 			 "{ATI, RS780},"
234 			 "{ATI, R600},"
235 			 "{ATI, RV630},"
236 			 "{ATI, RV610},"
237 			 "{ATI, RV670},"
238 			 "{ATI, RV635},"
239 			 "{ATI, RV620},"
240 			 "{ATI, RV770},"
241 			 "{VIA, VT8251},"
242 			 "{VIA, VT8237A},"
243 			 "{SiS, SIS966},"
244 			 "{ULI, M5461}}");
245 MODULE_DESCRIPTION("Intel HDA driver");
246 
247 #if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO)
248 #if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
249 #define SUPPORT_VGA_SWITCHEROO
250 #endif
251 #endif
252 
253 
254 /*
255  */
256 
257 /* driver types */
258 enum {
259 	AZX_DRIVER_ICH,
260 	AZX_DRIVER_PCH,
261 	AZX_DRIVER_SCH,
262 	AZX_DRIVER_SKL,
263 	AZX_DRIVER_HDMI,
264 	AZX_DRIVER_ATI,
265 	AZX_DRIVER_ATIHDMI,
266 	AZX_DRIVER_ATIHDMI_NS,
267 	AZX_DRIVER_VIA,
268 	AZX_DRIVER_SIS,
269 	AZX_DRIVER_ULI,
270 	AZX_DRIVER_NVIDIA,
271 	AZX_DRIVER_TERA,
272 	AZX_DRIVER_CTX,
273 	AZX_DRIVER_CTHDA,
274 	AZX_DRIVER_CMEDIA,
275 	AZX_DRIVER_ZHAOXIN,
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 	 AZX_DCAPS_SYNC_WRITE)
288 
289 /* quirks for Intel PCH */
290 #define AZX_DCAPS_INTEL_PCH_BASE \
291 	(AZX_DCAPS_NO_ALIGN_BUFSIZE | AZX_DCAPS_COUNT_LPIB_DELAY |\
292 	 AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)
293 
294 /* PCH up to IVB; no runtime PM; bind with i915 gfx */
295 #define AZX_DCAPS_INTEL_PCH_NOPM \
296 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
297 
298 /* PCH for HSW/BDW; with runtime PM */
299 /* no i915 binding for this as HSW/BDW has another controller for HDMI */
300 #define AZX_DCAPS_INTEL_PCH \
301 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME)
302 
303 /* HSW HDMI */
304 #define AZX_DCAPS_INTEL_HASWELL \
305 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_COUNT_LPIB_DELAY |\
306 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
307 	 AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)
308 
309 /* Broadwell HDMI can't use position buffer reliably, force to use LPIB */
310 #define AZX_DCAPS_INTEL_BROADWELL \
311 	(/*AZX_DCAPS_ALIGN_BUFSIZE |*/ AZX_DCAPS_POSFIX_LPIB |\
312 	 AZX_DCAPS_PM_RUNTIME | AZX_DCAPS_I915_COMPONENT |\
313 	 AZX_DCAPS_SNOOP_TYPE(SCH) | AZX_DCAPS_SYNC_WRITE)
314 
315 #define AZX_DCAPS_INTEL_BAYTRAIL \
316 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_I915_COMPONENT)
317 
318 #define AZX_DCAPS_INTEL_BRASWELL \
319 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
320 	 AZX_DCAPS_I915_COMPONENT)
321 
322 #define AZX_DCAPS_INTEL_SKYLAKE \
323 	(AZX_DCAPS_INTEL_PCH_BASE | AZX_DCAPS_PM_RUNTIME |\
324 	 AZX_DCAPS_SYNC_WRITE |\
325 	 AZX_DCAPS_SEPARATE_STREAM_TAG | AZX_DCAPS_I915_COMPONENT)
326 
327 #define AZX_DCAPS_INTEL_BROXTON		AZX_DCAPS_INTEL_SKYLAKE
328 
329 /* quirks for ATI SB / AMD Hudson */
330 #define AZX_DCAPS_PRESET_ATI_SB \
331 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB |\
332 	 AZX_DCAPS_SNOOP_TYPE(ATI))
333 
334 /* quirks for ATI/AMD HDMI */
335 #define AZX_DCAPS_PRESET_ATI_HDMI \
336 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_POSFIX_LPIB|\
337 	 AZX_DCAPS_NO_MSI64)
338 
339 /* quirks for ATI HDMI with snoop off */
340 #define AZX_DCAPS_PRESET_ATI_HDMI_NS \
341 	(AZX_DCAPS_PRESET_ATI_HDMI | AZX_DCAPS_SNOOP_OFF)
342 
343 /* quirks for AMD SB */
344 #define AZX_DCAPS_PRESET_AMD_SB \
345 	(AZX_DCAPS_NO_TCSEL | AZX_DCAPS_SYNC_WRITE | AZX_DCAPS_AMD_WORKAROUND |\
346 	 AZX_DCAPS_SNOOP_TYPE(ATI) | AZX_DCAPS_PM_RUNTIME)
347 
348 /* quirks for Nvidia */
349 #define AZX_DCAPS_PRESET_NVIDIA \
350 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_CORBRP_SELF_CLEAR |\
351 	 AZX_DCAPS_SNOOP_TYPE(NVIDIA))
352 
353 #define AZX_DCAPS_PRESET_CTHDA \
354 	(AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB |\
355 	 AZX_DCAPS_NO_64BIT |\
356 	 AZX_DCAPS_4K_BDLE_BOUNDARY | AZX_DCAPS_SNOOP_OFF)
357 
358 /*
359  * vga_switcheroo support
360  */
361 #ifdef SUPPORT_VGA_SWITCHEROO
362 #define use_vga_switcheroo(chip)	((chip)->use_vga_switcheroo)
363 #define needs_eld_notify_link(chip)	((chip)->bus.keep_power)
364 #else
365 #define use_vga_switcheroo(chip)	0
366 #define needs_eld_notify_link(chip)	false
367 #endif
368 
369 #define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \
370 					((pci)->device == 0x0c0c) || \
371 					((pci)->device == 0x0d0c) || \
372 					((pci)->device == 0x160c))
373 
374 #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98)
375 
376 static const char * const driver_short_names[] = {
377 	[AZX_DRIVER_ICH] = "HDA Intel",
378 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
379 	[AZX_DRIVER_SCH] = "HDA Intel MID",
380 	[AZX_DRIVER_SKL] = "HDA Intel PCH", /* kept old name for compatibility */
381 	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
382 	[AZX_DRIVER_ATI] = "HDA ATI SB",
383 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
384 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
385 	[AZX_DRIVER_VIA] = "HDA VIA VT82xx",
386 	[AZX_DRIVER_SIS] = "HDA SIS966",
387 	[AZX_DRIVER_ULI] = "HDA ULI M5461",
388 	[AZX_DRIVER_NVIDIA] = "HDA NVidia",
389 	[AZX_DRIVER_TERA] = "HDA Teradici",
390 	[AZX_DRIVER_CTX] = "HDA Creative",
391 	[AZX_DRIVER_CTHDA] = "HDA Creative",
392 	[AZX_DRIVER_CMEDIA] = "HDA C-Media",
393 	[AZX_DRIVER_ZHAOXIN] = "HDA Zhaoxin",
394 	[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
395 };
396 
397 static int azx_acquire_irq(struct azx *chip, int do_disconnect);
398 static void set_default_power_save(struct azx *chip);
399 
400 /*
401  * initialize the PCI registers
402  */
403 /* update bits in a PCI register byte */
404 static void update_pci_byte(struct pci_dev *pci, unsigned int reg,
405 			    unsigned char mask, unsigned char val)
406 {
407 	unsigned char data;
408 
409 	pci_read_config_byte(pci, reg, &data);
410 	data &= ~mask;
411 	data |= (val & mask);
412 	pci_write_config_byte(pci, reg, data);
413 }
414 
415 static void azx_init_pci(struct azx *chip)
416 {
417 	int snoop_type = azx_get_snoop_type(chip);
418 
419 	/* Clear bits 0-2 of PCI register TCSEL (at offset 0x44)
420 	 * TCSEL == Traffic Class Select Register, which sets PCI express QOS
421 	 * Ensuring these bits are 0 clears playback static on some HD Audio
422 	 * codecs.
423 	 * The PCI register TCSEL is defined in the Intel manuals.
424 	 */
425 	if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
426 		dev_dbg(chip->card->dev, "Clearing TCSEL\n");
427 		update_pci_byte(chip->pci, AZX_PCIREG_TCSEL, 0x07, 0);
428 	}
429 
430 	/* For ATI SB450/600/700/800/900 and AMD Hudson azalia HD audio,
431 	 * we need to enable snoop.
432 	 */
433 	if (snoop_type == AZX_SNOOP_TYPE_ATI) {
434 		dev_dbg(chip->card->dev, "Setting ATI snoop: %d\n",
435 			azx_snoop(chip));
436 		update_pci_byte(chip->pci,
437 				ATI_SB450_HDAUDIO_MISC_CNTR2_ADDR, 0x07,
438 				azx_snoop(chip) ? ATI_SB450_HDAUDIO_ENABLE_SNOOP : 0);
439 	}
440 
441 	/* For NVIDIA HDA, enable snoop */
442 	if (snoop_type == AZX_SNOOP_TYPE_NVIDIA) {
443 		dev_dbg(chip->card->dev, "Setting Nvidia snoop: %d\n",
444 			azx_snoop(chip));
445 		update_pci_byte(chip->pci,
446 				NVIDIA_HDA_TRANSREG_ADDR,
447 				0x0f, NVIDIA_HDA_ENABLE_COHBITS);
448 		update_pci_byte(chip->pci,
449 				NVIDIA_HDA_ISTRM_COH,
450 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
451 		update_pci_byte(chip->pci,
452 				NVIDIA_HDA_OSTRM_COH,
453 				0x01, NVIDIA_HDA_ENABLE_COHBIT);
454 	}
455 
456 	/* Enable SCH/PCH snoop if needed */
457 	if (snoop_type == AZX_SNOOP_TYPE_SCH) {
458 		unsigned short snoop;
459 		pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
460 		if ((!azx_snoop(chip) && !(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP)) ||
461 		    (azx_snoop(chip) && (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP))) {
462 			snoop &= ~INTEL_SCH_HDA_DEVC_NOSNOOP;
463 			if (!azx_snoop(chip))
464 				snoop |= INTEL_SCH_HDA_DEVC_NOSNOOP;
465 			pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC, snoop);
466 			pci_read_config_word(chip->pci,
467 				INTEL_SCH_HDA_DEVC, &snoop);
468 		}
469 		dev_dbg(chip->card->dev, "SCH snoop: %s\n",
470 			(snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) ?
471 			"Disabled" : "Enabled");
472         }
473 }
474 
475 /*
476  * In BXT-P A0, HD-Audio DMA requests is later than expected,
477  * and makes an audio stream sensitive to system latencies when
478  * 24/32 bits are playing.
479  * Adjusting threshold of DMA fifo to force the DMA request
480  * sooner to improve latency tolerance at the expense of power.
481  */
482 static void bxt_reduce_dma_latency(struct azx *chip)
483 {
484 	u32 val;
485 
486 	val = azx_readl(chip, VS_EM4L);
487 	val &= (0x3 << 20);
488 	azx_writel(chip, VS_EM4L, val);
489 }
490 
491 /*
492  * ML_LCAP bits:
493  *  bit 0: 6 MHz Supported
494  *  bit 1: 12 MHz Supported
495  *  bit 2: 24 MHz Supported
496  *  bit 3: 48 MHz Supported
497  *  bit 4: 96 MHz Supported
498  *  bit 5: 192 MHz Supported
499  */
500 static int intel_get_lctl_scf(struct azx *chip)
501 {
502 	struct hdac_bus *bus = azx_bus(chip);
503 	static const int preferred_bits[] = { 2, 3, 1, 4, 5 };
504 	u32 val, t;
505 	int i;
506 
507 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCAP);
508 
509 	for (i = 0; i < ARRAY_SIZE(preferred_bits); i++) {
510 		t = preferred_bits[i];
511 		if (val & (1 << t))
512 			return t;
513 	}
514 
515 	dev_warn(chip->card->dev, "set audio clock frequency to 6MHz");
516 	return 0;
517 }
518 
519 static int intel_ml_lctl_set_power(struct azx *chip, int state)
520 {
521 	struct hdac_bus *bus = azx_bus(chip);
522 	u32 val;
523 	int timeout;
524 
525 	/*
526 	 * the codecs are sharing the first link setting by default
527 	 * If other links are enabled for stream, they need similar fix
528 	 */
529 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
530 	val &= ~AZX_MLCTL_SPA;
531 	val |= state << AZX_MLCTL_SPA_SHIFT;
532 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
533 	/* wait for CPA */
534 	timeout = 50;
535 	while (timeout) {
536 		if (((readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL)) &
537 		    AZX_MLCTL_CPA) == (state << AZX_MLCTL_CPA_SHIFT))
538 			return 0;
539 		timeout--;
540 		udelay(10);
541 	}
542 
543 	return -1;
544 }
545 
546 static void intel_init_lctl(struct azx *chip)
547 {
548 	struct hdac_bus *bus = azx_bus(chip);
549 	u32 val;
550 	int ret;
551 
552 	/* 0. check lctl register value is correct or not */
553 	val = readl(bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
554 	/* if SCF is already set, let's use it */
555 	if ((val & ML_LCTL_SCF_MASK) != 0)
556 		return;
557 
558 	/*
559 	 * Before operating on SPA, CPA must match SPA.
560 	 * Any deviation may result in undefined behavior.
561 	 */
562 	if (((val & AZX_MLCTL_SPA) >> AZX_MLCTL_SPA_SHIFT) !=
563 		((val & AZX_MLCTL_CPA) >> AZX_MLCTL_CPA_SHIFT))
564 		return;
565 
566 	/* 1. turn link down: set SPA to 0 and wait CPA to 0 */
567 	ret = intel_ml_lctl_set_power(chip, 0);
568 	udelay(100);
569 	if (ret)
570 		goto set_spa;
571 
572 	/* 2. update SCF to select a properly audio clock*/
573 	val &= ~ML_LCTL_SCF_MASK;
574 	val |= intel_get_lctl_scf(chip);
575 	writel(val, bus->mlcap + AZX_ML_BASE + AZX_REG_ML_LCTL);
576 
577 set_spa:
578 	/* 4. turn link up: set SPA to 1 and wait CPA to 1 */
579 	intel_ml_lctl_set_power(chip, 1);
580 	udelay(100);
581 }
582 
583 static void hda_intel_init_chip(struct azx *chip, bool full_reset)
584 {
585 	struct hdac_bus *bus = azx_bus(chip);
586 	struct pci_dev *pci = chip->pci;
587 	u32 val;
588 
589 	snd_hdac_set_codec_wakeup(bus, true);
590 	if (chip->driver_type == AZX_DRIVER_SKL) {
591 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
592 		val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
593 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
594 	}
595 	azx_init_chip(chip, full_reset);
596 	if (chip->driver_type == AZX_DRIVER_SKL) {
597 		pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
598 		val = val | INTEL_HDA_CGCTL_MISCBDCGE;
599 		pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
600 	}
601 
602 	snd_hdac_set_codec_wakeup(bus, false);
603 
604 	/* reduce dma latency to avoid noise */
605 	if (IS_BXT(pci))
606 		bxt_reduce_dma_latency(chip);
607 
608 	if (bus->mlcap != NULL)
609 		intel_init_lctl(chip);
610 }
611 
612 /* calculate runtime delay from LPIB */
613 static int azx_get_delay_from_lpib(struct azx *chip, struct azx_dev *azx_dev,
614 				   unsigned int pos)
615 {
616 	struct snd_pcm_substream *substream = azx_dev->core.substream;
617 	int stream = substream->stream;
618 	unsigned int lpib_pos = azx_get_pos_lpib(chip, azx_dev);
619 	int delay;
620 
621 	if (stream == SNDRV_PCM_STREAM_PLAYBACK)
622 		delay = pos - lpib_pos;
623 	else
624 		delay = lpib_pos - pos;
625 	if (delay < 0) {
626 		if (delay >= azx_dev->core.delay_negative_threshold)
627 			delay = 0;
628 		else
629 			delay += azx_dev->core.bufsize;
630 	}
631 
632 	if (delay >= azx_dev->core.period_bytes) {
633 		dev_info(chip->card->dev,
634 			 "Unstable LPIB (%d >= %d); disabling LPIB delay counting\n",
635 			 delay, azx_dev->core.period_bytes);
636 		delay = 0;
637 		chip->driver_caps &= ~AZX_DCAPS_COUNT_LPIB_DELAY;
638 		chip->get_delay[stream] = NULL;
639 	}
640 
641 	return bytes_to_frames(substream->runtime, delay);
642 }
643 
644 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev);
645 
646 /* called from IRQ */
647 static int azx_position_check(struct azx *chip, struct azx_dev *azx_dev)
648 {
649 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
650 	int ok;
651 
652 	ok = azx_position_ok(chip, azx_dev);
653 	if (ok == 1) {
654 		azx_dev->irq_pending = 0;
655 		return ok;
656 	} else if (ok == 0) {
657 		/* bogus IRQ, process it later */
658 		azx_dev->irq_pending = 1;
659 		schedule_work(&hda->irq_pending_work);
660 	}
661 	return 0;
662 }
663 
664 #define display_power(chip, enable) \
665 	snd_hdac_display_power(azx_bus(chip), HDA_CODEC_IDX_CONTROLLER, enable)
666 
667 /*
668  * Check whether the current DMA position is acceptable for updating
669  * periods.  Returns non-zero if it's OK.
670  *
671  * Many HD-audio controllers appear pretty inaccurate about
672  * the update-IRQ timing.  The IRQ is issued before actually the
673  * data is processed.  So, we need to process it afterwords in a
674  * workqueue.
675  */
676 static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev)
677 {
678 	struct snd_pcm_substream *substream = azx_dev->core.substream;
679 	int stream = substream->stream;
680 	u32 wallclk;
681 	unsigned int pos;
682 
683 	wallclk = azx_readl(chip, WALLCLK) - azx_dev->core.start_wallclk;
684 	if (wallclk < (azx_dev->core.period_wallclk * 2) / 3)
685 		return -1;	/* bogus (too early) interrupt */
686 
687 	if (chip->get_position[stream])
688 		pos = chip->get_position[stream](chip, azx_dev);
689 	else { /* use the position buffer as default */
690 		pos = azx_get_pos_posbuf(chip, azx_dev);
691 		if (!pos || pos == (u32)-1) {
692 			dev_info(chip->card->dev,
693 				 "Invalid position buffer, using LPIB read method instead.\n");
694 			chip->get_position[stream] = azx_get_pos_lpib;
695 			if (chip->get_position[0] == azx_get_pos_lpib &&
696 			    chip->get_position[1] == azx_get_pos_lpib)
697 				azx_bus(chip)->use_posbuf = false;
698 			pos = azx_get_pos_lpib(chip, azx_dev);
699 			chip->get_delay[stream] = NULL;
700 		} else {
701 			chip->get_position[stream] = azx_get_pos_posbuf;
702 			if (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)
703 				chip->get_delay[stream] = azx_get_delay_from_lpib;
704 		}
705 	}
706 
707 	if (pos >= azx_dev->core.bufsize)
708 		pos = 0;
709 
710 	if (WARN_ONCE(!azx_dev->core.period_bytes,
711 		      "hda-intel: zero azx_dev->period_bytes"))
712 		return -1; /* this shouldn't happen! */
713 	if (wallclk < (azx_dev->core.period_wallclk * 5) / 4 &&
714 	    pos % azx_dev->core.period_bytes > azx_dev->core.period_bytes / 2)
715 		/* NG - it's below the first next period boundary */
716 		return chip->bdl_pos_adj ? 0 : -1;
717 	azx_dev->core.start_wallclk += wallclk;
718 	return 1; /* OK, it's fine */
719 }
720 
721 /*
722  * The work for pending PCM period updates.
723  */
724 static void azx_irq_pending_work(struct work_struct *work)
725 {
726 	struct hda_intel *hda = container_of(work, struct hda_intel, irq_pending_work);
727 	struct azx *chip = &hda->chip;
728 	struct hdac_bus *bus = azx_bus(chip);
729 	struct hdac_stream *s;
730 	int pending, ok;
731 
732 	if (!hda->irq_pending_warned) {
733 		dev_info(chip->card->dev,
734 			 "IRQ timing workaround is activated for card #%d. Suggest a bigger bdl_pos_adj.\n",
735 			 chip->card->number);
736 		hda->irq_pending_warned = 1;
737 	}
738 
739 	for (;;) {
740 		pending = 0;
741 		spin_lock_irq(&bus->reg_lock);
742 		list_for_each_entry(s, &bus->stream_list, list) {
743 			struct azx_dev *azx_dev = stream_to_azx_dev(s);
744 			if (!azx_dev->irq_pending ||
745 			    !s->substream ||
746 			    !s->running)
747 				continue;
748 			ok = azx_position_ok(chip, azx_dev);
749 			if (ok > 0) {
750 				azx_dev->irq_pending = 0;
751 				spin_unlock(&bus->reg_lock);
752 				snd_pcm_period_elapsed(s->substream);
753 				spin_lock(&bus->reg_lock);
754 			} else if (ok < 0) {
755 				pending = 0;	/* too early */
756 			} else
757 				pending++;
758 		}
759 		spin_unlock_irq(&bus->reg_lock);
760 		if (!pending)
761 			return;
762 		msleep(1);
763 	}
764 }
765 
766 /* clear irq_pending flags and assure no on-going workq */
767 static void azx_clear_irq_pending(struct azx *chip)
768 {
769 	struct hdac_bus *bus = azx_bus(chip);
770 	struct hdac_stream *s;
771 
772 	spin_lock_irq(&bus->reg_lock);
773 	list_for_each_entry(s, &bus->stream_list, list) {
774 		struct azx_dev *azx_dev = stream_to_azx_dev(s);
775 		azx_dev->irq_pending = 0;
776 	}
777 	spin_unlock_irq(&bus->reg_lock);
778 }
779 
780 static int azx_acquire_irq(struct azx *chip, int do_disconnect)
781 {
782 	struct hdac_bus *bus = azx_bus(chip);
783 
784 	if (request_irq(chip->pci->irq, azx_interrupt,
785 			chip->msi ? 0 : IRQF_SHARED,
786 			chip->card->irq_descr, chip)) {
787 		dev_err(chip->card->dev,
788 			"unable to grab IRQ %d, disabling device\n",
789 			chip->pci->irq);
790 		if (do_disconnect)
791 			snd_card_disconnect(chip->card);
792 		return -1;
793 	}
794 	bus->irq = chip->pci->irq;
795 	chip->card->sync_irq = bus->irq;
796 	pci_intx(chip->pci, !chip->msi);
797 	return 0;
798 }
799 
800 /* get the current DMA position with correction on VIA chips */
801 static unsigned int azx_via_get_position(struct azx *chip,
802 					 struct azx_dev *azx_dev)
803 {
804 	unsigned int link_pos, mini_pos, bound_pos;
805 	unsigned int mod_link_pos, mod_dma_pos, mod_mini_pos;
806 	unsigned int fifo_size;
807 
808 	link_pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
809 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
810 		/* Playback, no problem using link position */
811 		return link_pos;
812 	}
813 
814 	/* Capture */
815 	/* For new chipset,
816 	 * use mod to get the DMA position just like old chipset
817 	 */
818 	mod_dma_pos = le32_to_cpu(*azx_dev->core.posbuf);
819 	mod_dma_pos %= azx_dev->core.period_bytes;
820 
821 	fifo_size = azx_stream(azx_dev)->fifo_size - 1;
822 
823 	if (azx_dev->insufficient) {
824 		/* Link position never gather than FIFO size */
825 		if (link_pos <= fifo_size)
826 			return 0;
827 
828 		azx_dev->insufficient = 0;
829 	}
830 
831 	if (link_pos <= fifo_size)
832 		mini_pos = azx_dev->core.bufsize + link_pos - fifo_size;
833 	else
834 		mini_pos = link_pos - fifo_size;
835 
836 	/* Find nearest previous boudary */
837 	mod_mini_pos = mini_pos % azx_dev->core.period_bytes;
838 	mod_link_pos = link_pos % azx_dev->core.period_bytes;
839 	if (mod_link_pos >= fifo_size)
840 		bound_pos = link_pos - mod_link_pos;
841 	else if (mod_dma_pos >= mod_mini_pos)
842 		bound_pos = mini_pos - mod_mini_pos;
843 	else {
844 		bound_pos = mini_pos - mod_mini_pos + azx_dev->core.period_bytes;
845 		if (bound_pos >= azx_dev->core.bufsize)
846 			bound_pos = 0;
847 	}
848 
849 	/* Calculate real DMA position we want */
850 	return bound_pos + mod_dma_pos;
851 }
852 
853 #define AMD_FIFO_SIZE	32
854 
855 /* get the current DMA position with FIFO size correction */
856 static unsigned int azx_get_pos_fifo(struct azx *chip, struct azx_dev *azx_dev)
857 {
858 	struct snd_pcm_substream *substream = azx_dev->core.substream;
859 	struct snd_pcm_runtime *runtime = substream->runtime;
860 	unsigned int pos, delay;
861 
862 	pos = snd_hdac_stream_get_pos_lpib(azx_stream(azx_dev));
863 	if (!runtime)
864 		return pos;
865 
866 	runtime->delay = AMD_FIFO_SIZE;
867 	delay = frames_to_bytes(runtime, AMD_FIFO_SIZE);
868 	if (azx_dev->insufficient) {
869 		if (pos < delay) {
870 			delay = pos;
871 			runtime->delay = bytes_to_frames(runtime, pos);
872 		} else {
873 			azx_dev->insufficient = 0;
874 		}
875 	}
876 
877 	/* correct the DMA position for capture stream */
878 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
879 		if (pos < delay)
880 			pos += azx_dev->core.bufsize;
881 		pos -= delay;
882 	}
883 
884 	return pos;
885 }
886 
887 static int azx_get_delay_from_fifo(struct azx *chip, struct azx_dev *azx_dev,
888 				   unsigned int pos)
889 {
890 	struct snd_pcm_substream *substream = azx_dev->core.substream;
891 
892 	/* just read back the calculated value in the above */
893 	return substream->runtime->delay;
894 }
895 
896 static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
897 					 struct azx_dev *azx_dev)
898 {
899 	return _snd_hdac_chip_readl(azx_bus(chip),
900 				    AZX_REG_VS_SDXDPIB_XBASE +
901 				    (AZX_REG_VS_SDXDPIB_XINTERVAL *
902 				     azx_dev->core.index));
903 }
904 
905 /* get the current DMA position with correction on SKL+ chips */
906 static unsigned int azx_get_pos_skl(struct azx *chip, struct azx_dev *azx_dev)
907 {
908 	/* DPIB register gives a more accurate position for playback */
909 	if (azx_dev->core.substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
910 		return azx_skl_get_dpib_pos(chip, azx_dev);
911 
912 	/* For capture, we need to read posbuf, but it requires a delay
913 	 * for the possible boundary overlap; the read of DPIB fetches the
914 	 * actual posbuf
915 	 */
916 	udelay(20);
917 	azx_skl_get_dpib_pos(chip, azx_dev);
918 	return azx_get_pos_posbuf(chip, azx_dev);
919 }
920 
921 #ifdef CONFIG_PM
922 static DEFINE_MUTEX(card_list_lock);
923 static LIST_HEAD(card_list);
924 
925 static void azx_add_card_list(struct azx *chip)
926 {
927 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
928 	mutex_lock(&card_list_lock);
929 	list_add(&hda->list, &card_list);
930 	mutex_unlock(&card_list_lock);
931 }
932 
933 static void azx_del_card_list(struct azx *chip)
934 {
935 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
936 	mutex_lock(&card_list_lock);
937 	list_del_init(&hda->list);
938 	mutex_unlock(&card_list_lock);
939 }
940 
941 /* trigger power-save check at writing parameter */
942 static int param_set_xint(const char *val, const struct kernel_param *kp)
943 {
944 	struct hda_intel *hda;
945 	struct azx *chip;
946 	int prev = power_save;
947 	int ret = param_set_int(val, kp);
948 
949 	if (ret || prev == power_save)
950 		return ret;
951 
952 	mutex_lock(&card_list_lock);
953 	list_for_each_entry(hda, &card_list, list) {
954 		chip = &hda->chip;
955 		if (!hda->probe_continued || chip->disabled)
956 			continue;
957 		snd_hda_set_power_save(&chip->bus, power_save * 1000);
958 	}
959 	mutex_unlock(&card_list_lock);
960 	return 0;
961 }
962 
963 /*
964  * power management
965  */
966 static bool azx_is_pm_ready(struct snd_card *card)
967 {
968 	struct azx *chip;
969 	struct hda_intel *hda;
970 
971 	if (!card)
972 		return false;
973 	chip = card->private_data;
974 	hda = container_of(chip, struct hda_intel, chip);
975 	if (chip->disabled || hda->init_failed || !chip->running)
976 		return false;
977 	return true;
978 }
979 
980 static void __azx_runtime_suspend(struct azx *chip)
981 {
982 	azx_stop_chip(chip);
983 	azx_enter_link_reset(chip);
984 	azx_clear_irq_pending(chip);
985 	display_power(chip, false);
986 }
987 
988 static void __azx_runtime_resume(struct azx *chip, bool from_rt)
989 {
990 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
991 	struct hdac_bus *bus = azx_bus(chip);
992 	struct hda_codec *codec;
993 	int status;
994 
995 	display_power(chip, true);
996 	if (hda->need_i915_power)
997 		snd_hdac_i915_set_bclk(bus);
998 
999 	/* Read STATESTS before controller reset */
1000 	status = azx_readw(chip, STATESTS);
1001 
1002 	azx_init_pci(chip);
1003 	hda_intel_init_chip(chip, true);
1004 
1005 	if (status && from_rt) {
1006 		list_for_each_codec(codec, &chip->bus)
1007 			if (!codec->relaxed_resume &&
1008 			    (status & (1 << codec->addr)))
1009 				schedule_delayed_work(&codec->jackpoll_work,
1010 						      codec->jackpoll_interval);
1011 	}
1012 
1013 	/* power down again for link-controlled chips */
1014 	if (!hda->need_i915_power)
1015 		display_power(chip, false);
1016 }
1017 
1018 #ifdef CONFIG_PM_SLEEP
1019 static int azx_suspend(struct device *dev)
1020 {
1021 	struct snd_card *card = dev_get_drvdata(dev);
1022 	struct azx *chip;
1023 	struct hdac_bus *bus;
1024 
1025 	if (!azx_is_pm_ready(card))
1026 		return 0;
1027 
1028 	chip = card->private_data;
1029 	bus = azx_bus(chip);
1030 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1031 	pm_runtime_force_suspend(dev);
1032 	if (bus->irq >= 0) {
1033 		free_irq(bus->irq, chip);
1034 		bus->irq = -1;
1035 		chip->card->sync_irq = -1;
1036 	}
1037 
1038 	if (chip->msi)
1039 		pci_disable_msi(chip->pci);
1040 
1041 	trace_azx_suspend(chip);
1042 	return 0;
1043 }
1044 
1045 static int azx_resume(struct device *dev)
1046 {
1047 	struct snd_card *card = dev_get_drvdata(dev);
1048 	struct azx *chip;
1049 
1050 	if (!azx_is_pm_ready(card))
1051 		return 0;
1052 
1053 	chip = card->private_data;
1054 	if (chip->msi)
1055 		if (pci_enable_msi(chip->pci) < 0)
1056 			chip->msi = 0;
1057 	if (azx_acquire_irq(chip, 1) < 0)
1058 		return -EIO;
1059 
1060 	pm_runtime_force_resume(dev);
1061 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1062 
1063 	trace_azx_resume(chip);
1064 	return 0;
1065 }
1066 
1067 /* put codec down to D3 at hibernation for Intel SKL+;
1068  * otherwise BIOS may still access the codec and screw up the driver
1069  */
1070 static int azx_freeze_noirq(struct device *dev)
1071 {
1072 	struct snd_card *card = dev_get_drvdata(dev);
1073 	struct azx *chip = card->private_data;
1074 	struct pci_dev *pci = to_pci_dev(dev);
1075 
1076 	if (!azx_is_pm_ready(card))
1077 		return 0;
1078 	if (chip->driver_type == AZX_DRIVER_SKL)
1079 		pci_set_power_state(pci, PCI_D3hot);
1080 
1081 	return 0;
1082 }
1083 
1084 static int azx_thaw_noirq(struct device *dev)
1085 {
1086 	struct snd_card *card = dev_get_drvdata(dev);
1087 	struct azx *chip = card->private_data;
1088 	struct pci_dev *pci = to_pci_dev(dev);
1089 
1090 	if (!azx_is_pm_ready(card))
1091 		return 0;
1092 	if (chip->driver_type == AZX_DRIVER_SKL)
1093 		pci_set_power_state(pci, PCI_D0);
1094 
1095 	return 0;
1096 }
1097 #endif /* CONFIG_PM_SLEEP */
1098 
1099 static int azx_runtime_suspend(struct device *dev)
1100 {
1101 	struct snd_card *card = dev_get_drvdata(dev);
1102 	struct azx *chip;
1103 
1104 	if (!azx_is_pm_ready(card))
1105 		return 0;
1106 	chip = card->private_data;
1107 
1108 	/* enable controller wake up event */
1109 	if (snd_power_get_state(card) == SNDRV_CTL_POWER_D0) {
1110 		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
1111 			   STATESTS_INT_MASK);
1112 	}
1113 
1114 	__azx_runtime_suspend(chip);
1115 	trace_azx_runtime_suspend(chip);
1116 	return 0;
1117 }
1118 
1119 static int azx_runtime_resume(struct device *dev)
1120 {
1121 	struct snd_card *card = dev_get_drvdata(dev);
1122 	struct azx *chip;
1123 	bool from_rt = snd_power_get_state(card) == SNDRV_CTL_POWER_D0;
1124 
1125 	if (!azx_is_pm_ready(card))
1126 		return 0;
1127 	chip = card->private_data;
1128 	__azx_runtime_resume(chip, from_rt);
1129 
1130 	/* disable controller Wake Up event*/
1131 	if (from_rt) {
1132 		azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
1133 			   ~STATESTS_INT_MASK);
1134 	}
1135 
1136 	trace_azx_runtime_resume(chip);
1137 	return 0;
1138 }
1139 
1140 static int azx_runtime_idle(struct device *dev)
1141 {
1142 	struct snd_card *card = dev_get_drvdata(dev);
1143 	struct azx *chip;
1144 	struct hda_intel *hda;
1145 
1146 	if (!card)
1147 		return 0;
1148 
1149 	chip = card->private_data;
1150 	hda = container_of(chip, struct hda_intel, chip);
1151 	if (chip->disabled || hda->init_failed)
1152 		return 0;
1153 
1154 	if (!power_save_controller || !azx_has_pm_runtime(chip) ||
1155 	    azx_bus(chip)->codec_powered || !chip->running)
1156 		return -EBUSY;
1157 
1158 	/* ELD notification gets broken when HD-audio bus is off */
1159 	if (needs_eld_notify_link(chip))
1160 		return -EBUSY;
1161 
1162 	return 0;
1163 }
1164 
1165 static const struct dev_pm_ops azx_pm = {
1166 	SET_SYSTEM_SLEEP_PM_OPS(azx_suspend, azx_resume)
1167 #ifdef CONFIG_PM_SLEEP
1168 	.freeze_noirq = azx_freeze_noirq,
1169 	.thaw_noirq = azx_thaw_noirq,
1170 #endif
1171 	SET_RUNTIME_PM_OPS(azx_runtime_suspend, azx_runtime_resume, azx_runtime_idle)
1172 };
1173 
1174 #define AZX_PM_OPS	&azx_pm
1175 #else
1176 #define azx_add_card_list(chip) /* NOP */
1177 #define azx_del_card_list(chip) /* NOP */
1178 #define AZX_PM_OPS	NULL
1179 #endif /* CONFIG_PM */
1180 
1181 
1182 static int azx_probe_continue(struct azx *chip);
1183 
1184 #ifdef SUPPORT_VGA_SWITCHEROO
1185 static struct pci_dev *get_bound_vga(struct pci_dev *pci);
1186 
1187 static void azx_vs_set_state(struct pci_dev *pci,
1188 			     enum vga_switcheroo_state state)
1189 {
1190 	struct snd_card *card = pci_get_drvdata(pci);
1191 	struct azx *chip = card->private_data;
1192 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1193 	struct hda_codec *codec;
1194 	bool disabled;
1195 
1196 	wait_for_completion(&hda->probe_wait);
1197 	if (hda->init_failed)
1198 		return;
1199 
1200 	disabled = (state == VGA_SWITCHEROO_OFF);
1201 	if (chip->disabled == disabled)
1202 		return;
1203 
1204 	if (!hda->probe_continued) {
1205 		chip->disabled = disabled;
1206 		if (!disabled) {
1207 			dev_info(chip->card->dev,
1208 				 "Start delayed initialization\n");
1209 			if (azx_probe_continue(chip) < 0)
1210 				dev_err(chip->card->dev, "initialization error\n");
1211 		}
1212 	} else {
1213 		dev_info(chip->card->dev, "%s via vga_switcheroo\n",
1214 			 disabled ? "Disabling" : "Enabling");
1215 		if (disabled) {
1216 			list_for_each_codec(codec, &chip->bus) {
1217 				pm_runtime_suspend(hda_codec_dev(codec));
1218 				pm_runtime_disable(hda_codec_dev(codec));
1219 			}
1220 			pm_runtime_suspend(card->dev);
1221 			pm_runtime_disable(card->dev);
1222 			/* when we get suspended by vga_switcheroo we end up in D3cold,
1223 			 * however we have no ACPI handle, so pci/acpi can't put us there,
1224 			 * put ourselves there */
1225 			pci->current_state = PCI_D3cold;
1226 			chip->disabled = true;
1227 			if (snd_hda_lock_devices(&chip->bus))
1228 				dev_warn(chip->card->dev,
1229 					 "Cannot lock devices!\n");
1230 		} else {
1231 			snd_hda_unlock_devices(&chip->bus);
1232 			chip->disabled = false;
1233 			pm_runtime_enable(card->dev);
1234 			list_for_each_codec(codec, &chip->bus) {
1235 				pm_runtime_enable(hda_codec_dev(codec));
1236 				pm_runtime_resume(hda_codec_dev(codec));
1237 			}
1238 		}
1239 	}
1240 }
1241 
1242 static bool azx_vs_can_switch(struct pci_dev *pci)
1243 {
1244 	struct snd_card *card = pci_get_drvdata(pci);
1245 	struct azx *chip = card->private_data;
1246 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1247 
1248 	wait_for_completion(&hda->probe_wait);
1249 	if (hda->init_failed)
1250 		return false;
1251 	if (chip->disabled || !hda->probe_continued)
1252 		return true;
1253 	if (snd_hda_lock_devices(&chip->bus))
1254 		return false;
1255 	snd_hda_unlock_devices(&chip->bus);
1256 	return true;
1257 }
1258 
1259 /*
1260  * The discrete GPU cannot power down unless the HDA controller runtime
1261  * suspends, so activate runtime PM on codecs even if power_save == 0.
1262  */
1263 static void setup_vga_switcheroo_runtime_pm(struct azx *chip)
1264 {
1265 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1266 	struct hda_codec *codec;
1267 
1268 	if (hda->use_vga_switcheroo && !needs_eld_notify_link(chip)) {
1269 		list_for_each_codec(codec, &chip->bus)
1270 			codec->auto_runtime_pm = 1;
1271 		/* reset the power save setup */
1272 		if (chip->running)
1273 			set_default_power_save(chip);
1274 	}
1275 }
1276 
1277 static void azx_vs_gpu_bound(struct pci_dev *pci,
1278 			     enum vga_switcheroo_client_id client_id)
1279 {
1280 	struct snd_card *card = pci_get_drvdata(pci);
1281 	struct azx *chip = card->private_data;
1282 
1283 	if (client_id == VGA_SWITCHEROO_DIS)
1284 		chip->bus.keep_power = 0;
1285 	setup_vga_switcheroo_runtime_pm(chip);
1286 }
1287 
1288 static void init_vga_switcheroo(struct azx *chip)
1289 {
1290 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1291 	struct pci_dev *p = get_bound_vga(chip->pci);
1292 	struct pci_dev *parent;
1293 	if (p) {
1294 		dev_info(chip->card->dev,
1295 			 "Handle vga_switcheroo audio client\n");
1296 		hda->use_vga_switcheroo = 1;
1297 
1298 		/* cleared in either gpu_bound op or codec probe, or when its
1299 		 * upstream port has _PR3 (i.e. dGPU).
1300 		 */
1301 		parent = pci_upstream_bridge(p);
1302 		chip->bus.keep_power = parent ? !pci_pr3_present(parent) : 1;
1303 		chip->driver_caps |= AZX_DCAPS_PM_RUNTIME;
1304 		pci_dev_put(p);
1305 	}
1306 }
1307 
1308 static const struct vga_switcheroo_client_ops azx_vs_ops = {
1309 	.set_gpu_state = azx_vs_set_state,
1310 	.can_switch = azx_vs_can_switch,
1311 	.gpu_bound = azx_vs_gpu_bound,
1312 };
1313 
1314 static int register_vga_switcheroo(struct azx *chip)
1315 {
1316 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1317 	struct pci_dev *p;
1318 	int err;
1319 
1320 	if (!hda->use_vga_switcheroo)
1321 		return 0;
1322 
1323 	p = get_bound_vga(chip->pci);
1324 	err = vga_switcheroo_register_audio_client(chip->pci, &azx_vs_ops, p);
1325 	pci_dev_put(p);
1326 
1327 	if (err < 0)
1328 		return err;
1329 	hda->vga_switcheroo_registered = 1;
1330 
1331 	return 0;
1332 }
1333 #else
1334 #define init_vga_switcheroo(chip)		/* NOP */
1335 #define register_vga_switcheroo(chip)		0
1336 #define check_hdmi_disabled(pci)	false
1337 #define setup_vga_switcheroo_runtime_pm(chip)	/* NOP */
1338 #endif /* SUPPORT_VGA_SWITCHER */
1339 
1340 /*
1341  * destructor
1342  */
1343 static void azx_free(struct azx *chip)
1344 {
1345 	struct pci_dev *pci = chip->pci;
1346 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
1347 	struct hdac_bus *bus = azx_bus(chip);
1348 
1349 	if (hda->freed)
1350 		return;
1351 
1352 	if (azx_has_pm_runtime(chip) && chip->running)
1353 		pm_runtime_get_noresume(&pci->dev);
1354 	chip->running = 0;
1355 
1356 	azx_del_card_list(chip);
1357 
1358 	hda->init_failed = 1; /* to be sure */
1359 	complete_all(&hda->probe_wait);
1360 
1361 	if (use_vga_switcheroo(hda)) {
1362 		if (chip->disabled && hda->probe_continued)
1363 			snd_hda_unlock_devices(&chip->bus);
1364 		if (hda->vga_switcheroo_registered)
1365 			vga_switcheroo_unregister_client(chip->pci);
1366 	}
1367 
1368 	if (bus->chip_init) {
1369 		azx_clear_irq_pending(chip);
1370 		azx_stop_all_streams(chip);
1371 		azx_stop_chip(chip);
1372 	}
1373 
1374 	if (bus->irq >= 0)
1375 		free_irq(bus->irq, (void*)chip);
1376 	if (chip->msi)
1377 		pci_disable_msi(chip->pci);
1378 	iounmap(bus->remap_addr);
1379 
1380 	azx_free_stream_pages(chip);
1381 	azx_free_streams(chip);
1382 	snd_hdac_bus_exit(bus);
1383 
1384 	if (chip->region_requested)
1385 		pci_release_regions(chip->pci);
1386 
1387 	pci_disable_device(chip->pci);
1388 #ifdef CONFIG_SND_HDA_PATCH_LOADER
1389 	release_firmware(chip->fw);
1390 #endif
1391 	display_power(chip, false);
1392 
1393 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT)
1394 		snd_hdac_i915_exit(bus);
1395 
1396 	hda->freed = 1;
1397 }
1398 
1399 static int azx_dev_disconnect(struct snd_device *device)
1400 {
1401 	struct azx *chip = device->device_data;
1402 	struct hdac_bus *bus = azx_bus(chip);
1403 
1404 	chip->bus.shutdown = 1;
1405 	cancel_work_sync(&bus->unsol_work);
1406 
1407 	return 0;
1408 }
1409 
1410 static int azx_dev_free(struct snd_device *device)
1411 {
1412 	azx_free(device->device_data);
1413 	return 0;
1414 }
1415 
1416 #ifdef SUPPORT_VGA_SWITCHEROO
1417 #ifdef CONFIG_ACPI
1418 /* ATPX is in the integrated GPU's namespace */
1419 static bool atpx_present(void)
1420 {
1421 	struct pci_dev *pdev = NULL;
1422 	acpi_handle dhandle, atpx_handle;
1423 	acpi_status status;
1424 
1425 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
1426 		dhandle = ACPI_HANDLE(&pdev->dev);
1427 		if (dhandle) {
1428 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1429 			if (!ACPI_FAILURE(status)) {
1430 				pci_dev_put(pdev);
1431 				return true;
1432 			}
1433 		}
1434 	}
1435 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_OTHER << 8, pdev)) != NULL) {
1436 		dhandle = ACPI_HANDLE(&pdev->dev);
1437 		if (dhandle) {
1438 			status = acpi_get_handle(dhandle, "ATPX", &atpx_handle);
1439 			if (!ACPI_FAILURE(status)) {
1440 				pci_dev_put(pdev);
1441 				return true;
1442 			}
1443 		}
1444 	}
1445 	return false;
1446 }
1447 #else
1448 static bool atpx_present(void)
1449 {
1450 	return false;
1451 }
1452 #endif
1453 
1454 /*
1455  * Check of disabled HDMI controller by vga_switcheroo
1456  */
1457 static struct pci_dev *get_bound_vga(struct pci_dev *pci)
1458 {
1459 	struct pci_dev *p;
1460 
1461 	/* check only discrete GPU */
1462 	switch (pci->vendor) {
1463 	case PCI_VENDOR_ID_ATI:
1464 	case PCI_VENDOR_ID_AMD:
1465 		if (pci->devfn == 1) {
1466 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1467 							pci->bus->number, 0);
1468 			if (p) {
1469 				/* ATPX is in the integrated GPU's ACPI namespace
1470 				 * rather than the dGPU's namespace. However,
1471 				 * the dGPU is the one who is involved in
1472 				 * vgaswitcheroo.
1473 				 */
1474 				if (((p->class >> 16) == PCI_BASE_CLASS_DISPLAY) &&
1475 				    atpx_present())
1476 					return p;
1477 				pci_dev_put(p);
1478 			}
1479 		}
1480 		break;
1481 	case PCI_VENDOR_ID_NVIDIA:
1482 		if (pci->devfn == 1) {
1483 			p = pci_get_domain_bus_and_slot(pci_domain_nr(pci->bus),
1484 							pci->bus->number, 0);
1485 			if (p) {
1486 				if ((p->class >> 16) == PCI_BASE_CLASS_DISPLAY)
1487 					return p;
1488 				pci_dev_put(p);
1489 			}
1490 		}
1491 		break;
1492 	}
1493 	return NULL;
1494 }
1495 
1496 static bool check_hdmi_disabled(struct pci_dev *pci)
1497 {
1498 	bool vga_inactive = false;
1499 	struct pci_dev *p = get_bound_vga(pci);
1500 
1501 	if (p) {
1502 		if (vga_switcheroo_get_client_state(p) == VGA_SWITCHEROO_OFF)
1503 			vga_inactive = true;
1504 		pci_dev_put(p);
1505 	}
1506 	return vga_inactive;
1507 }
1508 #endif /* SUPPORT_VGA_SWITCHEROO */
1509 
1510 /*
1511  * white/black-listing for position_fix
1512  */
1513 static const struct snd_pci_quirk position_fix_list[] = {
1514 	SND_PCI_QUIRK(0x1028, 0x01cc, "Dell D820", POS_FIX_LPIB),
1515 	SND_PCI_QUIRK(0x1028, 0x01de, "Dell Precision 390", POS_FIX_LPIB),
1516 	SND_PCI_QUIRK(0x103c, 0x306d, "HP dv3", POS_FIX_LPIB),
1517 	SND_PCI_QUIRK(0x1043, 0x813d, "ASUS P5AD2", POS_FIX_LPIB),
1518 	SND_PCI_QUIRK(0x1043, 0x81b3, "ASUS", POS_FIX_LPIB),
1519 	SND_PCI_QUIRK(0x1043, 0x81e7, "ASUS M2V", POS_FIX_LPIB),
1520 	SND_PCI_QUIRK(0x104d, 0x9069, "Sony VPCS11V9E", POS_FIX_LPIB),
1521 	SND_PCI_QUIRK(0x10de, 0xcb89, "Macbook Pro 7,1", POS_FIX_LPIB),
1522 	SND_PCI_QUIRK(0x1297, 0x3166, "Shuttle", POS_FIX_LPIB),
1523 	SND_PCI_QUIRK(0x1458, 0xa022, "ga-ma770-ud3", POS_FIX_LPIB),
1524 	SND_PCI_QUIRK(0x1462, 0x1002, "MSI Wind U115", POS_FIX_LPIB),
1525 	SND_PCI_QUIRK(0x1565, 0x8218, "Biostar Microtech", POS_FIX_LPIB),
1526 	SND_PCI_QUIRK(0x1849, 0x0888, "775Dual-VSTA", POS_FIX_LPIB),
1527 	SND_PCI_QUIRK(0x8086, 0x2503, "DG965OT AAD63733-203", POS_FIX_LPIB),
1528 	{}
1529 };
1530 
1531 static int check_position_fix(struct azx *chip, int fix)
1532 {
1533 	const struct snd_pci_quirk *q;
1534 
1535 	switch (fix) {
1536 	case POS_FIX_AUTO:
1537 	case POS_FIX_LPIB:
1538 	case POS_FIX_POSBUF:
1539 	case POS_FIX_VIACOMBO:
1540 	case POS_FIX_COMBO:
1541 	case POS_FIX_SKL:
1542 	case POS_FIX_FIFO:
1543 		return fix;
1544 	}
1545 
1546 	q = snd_pci_quirk_lookup(chip->pci, position_fix_list);
1547 	if (q) {
1548 		dev_info(chip->card->dev,
1549 			 "position_fix set to %d for device %04x:%04x\n",
1550 			 q->value, q->subvendor, q->subdevice);
1551 		return q->value;
1552 	}
1553 
1554 	/* Check VIA/ATI HD Audio Controller exist */
1555 	if (chip->driver_type == AZX_DRIVER_VIA) {
1556 		dev_dbg(chip->card->dev, "Using VIACOMBO position fix\n");
1557 		return POS_FIX_VIACOMBO;
1558 	}
1559 	if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) {
1560 		dev_dbg(chip->card->dev, "Using FIFO position fix\n");
1561 		return POS_FIX_FIFO;
1562 	}
1563 	if (chip->driver_caps & AZX_DCAPS_POSFIX_LPIB) {
1564 		dev_dbg(chip->card->dev, "Using LPIB position fix\n");
1565 		return POS_FIX_LPIB;
1566 	}
1567 	if (chip->driver_type == AZX_DRIVER_SKL) {
1568 		dev_dbg(chip->card->dev, "Using SKL position fix\n");
1569 		return POS_FIX_SKL;
1570 	}
1571 	return POS_FIX_AUTO;
1572 }
1573 
1574 static void assign_position_fix(struct azx *chip, int fix)
1575 {
1576 	static const azx_get_pos_callback_t callbacks[] = {
1577 		[POS_FIX_AUTO] = NULL,
1578 		[POS_FIX_LPIB] = azx_get_pos_lpib,
1579 		[POS_FIX_POSBUF] = azx_get_pos_posbuf,
1580 		[POS_FIX_VIACOMBO] = azx_via_get_position,
1581 		[POS_FIX_COMBO] = azx_get_pos_lpib,
1582 		[POS_FIX_SKL] = azx_get_pos_skl,
1583 		[POS_FIX_FIFO] = azx_get_pos_fifo,
1584 	};
1585 
1586 	chip->get_position[0] = chip->get_position[1] = callbacks[fix];
1587 
1588 	/* combo mode uses LPIB only for playback */
1589 	if (fix == POS_FIX_COMBO)
1590 		chip->get_position[1] = NULL;
1591 
1592 	if ((fix == POS_FIX_POSBUF || fix == POS_FIX_SKL) &&
1593 	    (chip->driver_caps & AZX_DCAPS_COUNT_LPIB_DELAY)) {
1594 		chip->get_delay[0] = chip->get_delay[1] =
1595 			azx_get_delay_from_lpib;
1596 	}
1597 
1598 	if (fix == POS_FIX_FIFO)
1599 		chip->get_delay[0] = chip->get_delay[1] =
1600 			azx_get_delay_from_fifo;
1601 }
1602 
1603 /*
1604  * black-lists for probe_mask
1605  */
1606 static const struct snd_pci_quirk probe_mask_list[] = {
1607 	/* Thinkpad often breaks the controller communication when accessing
1608 	 * to the non-working (or non-existing) modem codec slot.
1609 	 */
1610 	SND_PCI_QUIRK(0x1014, 0x05b7, "Thinkpad Z60", 0x01),
1611 	SND_PCI_QUIRK(0x17aa, 0x2010, "Thinkpad X/T/R60", 0x01),
1612 	SND_PCI_QUIRK(0x17aa, 0x20ac, "Thinkpad X/T/R61", 0x01),
1613 	/* broken BIOS */
1614 	SND_PCI_QUIRK(0x1028, 0x20ac, "Dell Studio Desktop", 0x01),
1615 	/* including bogus ALC268 in slot#2 that conflicts with ALC888 */
1616 	SND_PCI_QUIRK(0x17c0, 0x4085, "Medion MD96630", 0x01),
1617 	/* forced codec slots */
1618 	SND_PCI_QUIRK(0x1043, 0x1262, "ASUS W5Fm", 0x103),
1619 	SND_PCI_QUIRK(0x1046, 0x1262, "ASUS W5F", 0x103),
1620 	/* WinFast VP200 H (Teradici) user reported broken communication */
1621 	SND_PCI_QUIRK(0x3a21, 0x040d, "WinFast VP200 H", 0x101),
1622 	{}
1623 };
1624 
1625 #define AZX_FORCE_CODEC_MASK	0x100
1626 
1627 static void check_probe_mask(struct azx *chip, int dev)
1628 {
1629 	const struct snd_pci_quirk *q;
1630 
1631 	chip->codec_probe_mask = probe_mask[dev];
1632 	if (chip->codec_probe_mask == -1) {
1633 		q = snd_pci_quirk_lookup(chip->pci, probe_mask_list);
1634 		if (q) {
1635 			dev_info(chip->card->dev,
1636 				 "probe_mask set to 0x%x for device %04x:%04x\n",
1637 				 q->value, q->subvendor, q->subdevice);
1638 			chip->codec_probe_mask = q->value;
1639 		}
1640 	}
1641 
1642 	/* check forced option */
1643 	if (chip->codec_probe_mask != -1 &&
1644 	    (chip->codec_probe_mask & AZX_FORCE_CODEC_MASK)) {
1645 		azx_bus(chip)->codec_mask = chip->codec_probe_mask & 0xff;
1646 		dev_info(chip->card->dev, "codec_mask forced to 0x%x\n",
1647 			 (int)azx_bus(chip)->codec_mask);
1648 	}
1649 }
1650 
1651 /*
1652  * white/black-list for enable_msi
1653  */
1654 static const struct snd_pci_quirk msi_black_list[] = {
1655 	SND_PCI_QUIRK(0x103c, 0x2191, "HP", 0), /* AMD Hudson */
1656 	SND_PCI_QUIRK(0x103c, 0x2192, "HP", 0), /* AMD Hudson */
1657 	SND_PCI_QUIRK(0x103c, 0x21f7, "HP", 0), /* AMD Hudson */
1658 	SND_PCI_QUIRK(0x103c, 0x21fa, "HP", 0), /* AMD Hudson */
1659 	SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
1660 	SND_PCI_QUIRK(0x1043, 0x81f6, "ASUS", 0), /* nvidia */
1661 	SND_PCI_QUIRK(0x1043, 0x822d, "ASUS", 0), /* Athlon64 X2 + nvidia MCP55 */
1662 	SND_PCI_QUIRK(0x1179, 0xfb44, "Toshiba Satellite C870", 0), /* AMD Hudson */
1663 	SND_PCI_QUIRK(0x1849, 0x0888, "ASRock", 0), /* Athlon64 X2 + nvidia */
1664 	SND_PCI_QUIRK(0xa0a0, 0x0575, "Aopen MZ915-M", 0), /* ICH6 */
1665 	{}
1666 };
1667 
1668 static void check_msi(struct azx *chip)
1669 {
1670 	const struct snd_pci_quirk *q;
1671 
1672 	if (enable_msi >= 0) {
1673 		chip->msi = !!enable_msi;
1674 		return;
1675 	}
1676 	chip->msi = 1;	/* enable MSI as default */
1677 	q = snd_pci_quirk_lookup(chip->pci, msi_black_list);
1678 	if (q) {
1679 		dev_info(chip->card->dev,
1680 			 "msi for device %04x:%04x set to %d\n",
1681 			 q->subvendor, q->subdevice, q->value);
1682 		chip->msi = q->value;
1683 		return;
1684 	}
1685 
1686 	/* NVidia chipsets seem to cause troubles with MSI */
1687 	if (chip->driver_caps & AZX_DCAPS_NO_MSI) {
1688 		dev_info(chip->card->dev, "Disabling MSI\n");
1689 		chip->msi = 0;
1690 	}
1691 }
1692 
1693 /* check the snoop mode availability */
1694 static void azx_check_snoop_available(struct azx *chip)
1695 {
1696 	int snoop = hda_snoop;
1697 
1698 	if (snoop >= 0) {
1699 		dev_info(chip->card->dev, "Force to %s mode by module option\n",
1700 			 snoop ? "snoop" : "non-snoop");
1701 		chip->snoop = snoop;
1702 		chip->uc_buffer = !snoop;
1703 		return;
1704 	}
1705 
1706 	snoop = true;
1707 	if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE &&
1708 	    chip->driver_type == AZX_DRIVER_VIA) {
1709 		/* force to non-snoop mode for a new VIA controller
1710 		 * when BIOS is set
1711 		 */
1712 		u8 val;
1713 		pci_read_config_byte(chip->pci, 0x42, &val);
1714 		if (!(val & 0x80) && (chip->pci->revision == 0x30 ||
1715 				      chip->pci->revision == 0x20))
1716 			snoop = false;
1717 	}
1718 
1719 	if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)
1720 		snoop = false;
1721 
1722 	chip->snoop = snoop;
1723 	if (!snoop) {
1724 		dev_info(chip->card->dev, "Force to non-snoop mode\n");
1725 		/* C-Media requires non-cached pages only for CORB/RIRB */
1726 		if (chip->driver_type != AZX_DRIVER_CMEDIA)
1727 			chip->uc_buffer = true;
1728 	}
1729 }
1730 
1731 static void azx_probe_work(struct work_struct *work)
1732 {
1733 	struct hda_intel *hda = container_of(work, struct hda_intel, probe_work);
1734 	azx_probe_continue(&hda->chip);
1735 }
1736 
1737 static int default_bdl_pos_adj(struct azx *chip)
1738 {
1739 	/* some exceptions: Atoms seem problematic with value 1 */
1740 	if (chip->pci->vendor == PCI_VENDOR_ID_INTEL) {
1741 		switch (chip->pci->device) {
1742 		case 0x0f04: /* Baytrail */
1743 		case 0x2284: /* Braswell */
1744 			return 32;
1745 		}
1746 	}
1747 
1748 	switch (chip->driver_type) {
1749 	case AZX_DRIVER_ICH:
1750 	case AZX_DRIVER_PCH:
1751 		return 1;
1752 	default:
1753 		return 32;
1754 	}
1755 }
1756 
1757 /*
1758  * constructor
1759  */
1760 static const struct hda_controller_ops pci_hda_ops;
1761 
1762 static int azx_create(struct snd_card *card, struct pci_dev *pci,
1763 		      int dev, unsigned int driver_caps,
1764 		      struct azx **rchip)
1765 {
1766 	static const struct snd_device_ops ops = {
1767 		.dev_disconnect = azx_dev_disconnect,
1768 		.dev_free = azx_dev_free,
1769 	};
1770 	struct hda_intel *hda;
1771 	struct azx *chip;
1772 	int err;
1773 
1774 	*rchip = NULL;
1775 
1776 	err = pci_enable_device(pci);
1777 	if (err < 0)
1778 		return err;
1779 
1780 	hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL);
1781 	if (!hda) {
1782 		pci_disable_device(pci);
1783 		return -ENOMEM;
1784 	}
1785 
1786 	chip = &hda->chip;
1787 	mutex_init(&chip->open_mutex);
1788 	chip->card = card;
1789 	chip->pci = pci;
1790 	chip->ops = &pci_hda_ops;
1791 	chip->driver_caps = driver_caps;
1792 	chip->driver_type = driver_caps & 0xff;
1793 	check_msi(chip);
1794 	chip->dev_index = dev;
1795 	if (jackpoll_ms[dev] >= 50 && jackpoll_ms[dev] <= 60000)
1796 		chip->jackpoll_interval = msecs_to_jiffies(jackpoll_ms[dev]);
1797 	INIT_LIST_HEAD(&chip->pcm_list);
1798 	INIT_WORK(&hda->irq_pending_work, azx_irq_pending_work);
1799 	INIT_LIST_HEAD(&hda->list);
1800 	init_vga_switcheroo(chip);
1801 	init_completion(&hda->probe_wait);
1802 
1803 	assign_position_fix(chip, check_position_fix(chip, position_fix[dev]));
1804 
1805 	check_probe_mask(chip, dev);
1806 
1807 	if (single_cmd < 0) /* allow fallback to single_cmd at errors */
1808 		chip->fallback_to_single_cmd = 1;
1809 	else /* explicitly set to single_cmd or not */
1810 		chip->single_cmd = single_cmd;
1811 
1812 	azx_check_snoop_available(chip);
1813 
1814 	if (bdl_pos_adj[dev] < 0)
1815 		chip->bdl_pos_adj = default_bdl_pos_adj(chip);
1816 	else
1817 		chip->bdl_pos_adj = bdl_pos_adj[dev];
1818 
1819 	err = azx_bus_init(chip, model[dev]);
1820 	if (err < 0) {
1821 		pci_disable_device(pci);
1822 		return err;
1823 	}
1824 
1825 	/* use the non-cached pages in non-snoop mode */
1826 	if (!azx_snoop(chip))
1827 		azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
1828 
1829 	if (chip->driver_type == AZX_DRIVER_NVIDIA) {
1830 		dev_dbg(chip->card->dev, "Enable delay in RIRB handling\n");
1831 		chip->bus.core.needs_damn_long_delay = 1;
1832 	}
1833 
1834 	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
1835 	if (err < 0) {
1836 		dev_err(card->dev, "Error creating device [card]!\n");
1837 		azx_free(chip);
1838 		return err;
1839 	}
1840 
1841 	/* continue probing in work context as may trigger request module */
1842 	INIT_WORK(&hda->probe_work, azx_probe_work);
1843 
1844 	*rchip = chip;
1845 
1846 	return 0;
1847 }
1848 
1849 static int azx_first_init(struct azx *chip)
1850 {
1851 	int dev = chip->dev_index;
1852 	struct pci_dev *pci = chip->pci;
1853 	struct snd_card *card = chip->card;
1854 	struct hdac_bus *bus = azx_bus(chip);
1855 	int err;
1856 	unsigned short gcap;
1857 	unsigned int dma_bits = 64;
1858 
1859 #if BITS_PER_LONG != 64
1860 	/* Fix up base address on ULI M5461 */
1861 	if (chip->driver_type == AZX_DRIVER_ULI) {
1862 		u16 tmp3;
1863 		pci_read_config_word(pci, 0x40, &tmp3);
1864 		pci_write_config_word(pci, 0x40, tmp3 | 0x10);
1865 		pci_write_config_dword(pci, PCI_BASE_ADDRESS_1, 0);
1866 	}
1867 #endif
1868 
1869 	err = pci_request_regions(pci, "ICH HD audio");
1870 	if (err < 0)
1871 		return err;
1872 	chip->region_requested = 1;
1873 
1874 	bus->addr = pci_resource_start(pci, 0);
1875 	bus->remap_addr = pci_ioremap_bar(pci, 0);
1876 	if (bus->remap_addr == NULL) {
1877 		dev_err(card->dev, "ioremap error\n");
1878 		return -ENXIO;
1879 	}
1880 
1881 	if (chip->driver_type == AZX_DRIVER_SKL)
1882 		snd_hdac_bus_parse_capabilities(bus);
1883 
1884 	/*
1885 	 * Some Intel CPUs has always running timer (ART) feature and
1886 	 * controller may have Global time sync reporting capability, so
1887 	 * check both of these before declaring synchronized time reporting
1888 	 * capability SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME
1889 	 */
1890 	chip->gts_present = false;
1891 
1892 #ifdef CONFIG_X86
1893 	if (bus->ppcap && boot_cpu_has(X86_FEATURE_ART))
1894 		chip->gts_present = true;
1895 #endif
1896 
1897 	if (chip->msi) {
1898 		if (chip->driver_caps & AZX_DCAPS_NO_MSI64) {
1899 			dev_dbg(card->dev, "Disabling 64bit MSI\n");
1900 			pci->no_64bit_msi = true;
1901 		}
1902 		if (pci_enable_msi(pci) < 0)
1903 			chip->msi = 0;
1904 	}
1905 
1906 	pci_set_master(pci);
1907 
1908 	gcap = azx_readw(chip, GCAP);
1909 	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
1910 
1911 	/* AMD devices support 40 or 48bit DMA, take the safe one */
1912 	if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
1913 		dma_bits = 40;
1914 
1915 	/* disable SB600 64bit support for safety */
1916 	if (chip->pci->vendor == PCI_VENDOR_ID_ATI) {
1917 		struct pci_dev *p_smbus;
1918 		dma_bits = 40;
1919 		p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
1920 					 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
1921 					 NULL);
1922 		if (p_smbus) {
1923 			if (p_smbus->revision < 0x30)
1924 				gcap &= ~AZX_GCAP_64OK;
1925 			pci_dev_put(p_smbus);
1926 		}
1927 	}
1928 
1929 	/* NVidia hardware normally only supports up to 40 bits of DMA */
1930 	if (chip->pci->vendor == PCI_VENDOR_ID_NVIDIA)
1931 		dma_bits = 40;
1932 
1933 	/* disable 64bit DMA address on some devices */
1934 	if (chip->driver_caps & AZX_DCAPS_NO_64BIT) {
1935 		dev_dbg(card->dev, "Disabling 64bit DMA\n");
1936 		gcap &= ~AZX_GCAP_64OK;
1937 	}
1938 
1939 	/* disable buffer size rounding to 128-byte multiples if supported */
1940 	if (align_buffer_size >= 0)
1941 		chip->align_buffer_size = !!align_buffer_size;
1942 	else {
1943 		if (chip->driver_caps & AZX_DCAPS_NO_ALIGN_BUFSIZE)
1944 			chip->align_buffer_size = 0;
1945 		else
1946 			chip->align_buffer_size = 1;
1947 	}
1948 
1949 	/* allow 64bit DMA address if supported by H/W */
1950 	if (!(gcap & AZX_GCAP_64OK))
1951 		dma_bits = 32;
1952 	if (!dma_set_mask(&pci->dev, DMA_BIT_MASK(dma_bits))) {
1953 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(dma_bits));
1954 	} else {
1955 		dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
1956 		dma_set_coherent_mask(&pci->dev, DMA_BIT_MASK(32));
1957 	}
1958 
1959 	/* read number of streams from GCAP register instead of using
1960 	 * hardcoded value
1961 	 */
1962 	chip->capture_streams = (gcap >> 8) & 0x0f;
1963 	chip->playback_streams = (gcap >> 12) & 0x0f;
1964 	if (!chip->playback_streams && !chip->capture_streams) {
1965 		/* gcap didn't give any info, switching to old method */
1966 
1967 		switch (chip->driver_type) {
1968 		case AZX_DRIVER_ULI:
1969 			chip->playback_streams = ULI_NUM_PLAYBACK;
1970 			chip->capture_streams = ULI_NUM_CAPTURE;
1971 			break;
1972 		case AZX_DRIVER_ATIHDMI:
1973 		case AZX_DRIVER_ATIHDMI_NS:
1974 			chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
1975 			chip->capture_streams = ATIHDMI_NUM_CAPTURE;
1976 			break;
1977 		case AZX_DRIVER_GENERIC:
1978 		default:
1979 			chip->playback_streams = ICH6_NUM_PLAYBACK;
1980 			chip->capture_streams = ICH6_NUM_CAPTURE;
1981 			break;
1982 		}
1983 	}
1984 	chip->capture_index_offset = 0;
1985 	chip->playback_index_offset = chip->capture_streams;
1986 	chip->num_streams = chip->playback_streams + chip->capture_streams;
1987 
1988 	/* sanity check for the SDxCTL.STRM field overflow */
1989 	if (chip->num_streams > 15 &&
1990 	    (chip->driver_caps & AZX_DCAPS_SEPARATE_STREAM_TAG) == 0) {
1991 		dev_warn(chip->card->dev, "number of I/O streams is %d, "
1992 			 "forcing separate stream tags", chip->num_streams);
1993 		chip->driver_caps |= AZX_DCAPS_SEPARATE_STREAM_TAG;
1994 	}
1995 
1996 	/* initialize streams */
1997 	err = azx_init_streams(chip);
1998 	if (err < 0)
1999 		return err;
2000 
2001 	err = azx_alloc_stream_pages(chip);
2002 	if (err < 0)
2003 		return err;
2004 
2005 	/* initialize chip */
2006 	azx_init_pci(chip);
2007 
2008 	snd_hdac_i915_set_bclk(bus);
2009 
2010 	hda_intel_init_chip(chip, (probe_only[dev] & 2) == 0);
2011 
2012 	/* codec detection */
2013 	if (!azx_bus(chip)->codec_mask) {
2014 		dev_err(card->dev, "no codecs found!\n");
2015 		/* keep running the rest for the runtime PM */
2016 	}
2017 
2018 	if (azx_acquire_irq(chip, 0) < 0)
2019 		return -EBUSY;
2020 
2021 	strcpy(card->driver, "HDA-Intel");
2022 	strlcpy(card->shortname, driver_short_names[chip->driver_type],
2023 		sizeof(card->shortname));
2024 	snprintf(card->longname, sizeof(card->longname),
2025 		 "%s at 0x%lx irq %i",
2026 		 card->shortname, bus->addr, bus->irq);
2027 
2028 	return 0;
2029 }
2030 
2031 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2032 /* callback from request_firmware_nowait() */
2033 static void azx_firmware_cb(const struct firmware *fw, void *context)
2034 {
2035 	struct snd_card *card = context;
2036 	struct azx *chip = card->private_data;
2037 
2038 	if (fw)
2039 		chip->fw = fw;
2040 	else
2041 		dev_err(card->dev, "Cannot load firmware, continue without patching\n");
2042 	if (!chip->disabled) {
2043 		/* continue probing */
2044 		azx_probe_continue(chip);
2045 	}
2046 }
2047 #endif
2048 
2049 static int disable_msi_reset_irq(struct azx *chip)
2050 {
2051 	struct hdac_bus *bus = azx_bus(chip);
2052 	int err;
2053 
2054 	free_irq(bus->irq, chip);
2055 	bus->irq = -1;
2056 	chip->card->sync_irq = -1;
2057 	pci_disable_msi(chip->pci);
2058 	chip->msi = 0;
2059 	err = azx_acquire_irq(chip, 1);
2060 	if (err < 0)
2061 		return err;
2062 
2063 	return 0;
2064 }
2065 
2066 static void pcm_mmap_prepare(struct snd_pcm_substream *substream,
2067 			     struct vm_area_struct *area)
2068 {
2069 #ifdef CONFIG_X86
2070 	struct azx_pcm *apcm = snd_pcm_substream_chip(substream);
2071 	struct azx *chip = apcm->chip;
2072 	if (chip->uc_buffer)
2073 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
2074 #endif
2075 }
2076 
2077 /* Blacklist for skipping the whole probe:
2078  * some HD-audio PCI entries are exposed without any codecs, and such devices
2079  * should be ignored from the beginning.
2080  */
2081 static const struct pci_device_id driver_blacklist[] = {
2082 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1043, 0x874f) }, /* ASUS ROG Zenith II / Strix */
2083 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb59) }, /* MSI TRX40 Creator */
2084 	{ PCI_DEVICE_SUB(0x1022, 0x1487, 0x1462, 0xcb60) }, /* MSI TRX40 */
2085 	{}
2086 };
2087 
2088 static const struct hda_controller_ops pci_hda_ops = {
2089 	.disable_msi_reset_irq = disable_msi_reset_irq,
2090 	.pcm_mmap_prepare = pcm_mmap_prepare,
2091 	.position_check = azx_position_check,
2092 };
2093 
2094 static int azx_probe(struct pci_dev *pci,
2095 		     const struct pci_device_id *pci_id)
2096 {
2097 	static int dev;
2098 	struct snd_card *card;
2099 	struct hda_intel *hda;
2100 	struct azx *chip;
2101 	bool schedule_probe;
2102 	int err;
2103 
2104 	if (pci_match_id(driver_blacklist, pci)) {
2105 		dev_info(&pci->dev, "Skipping the blacklisted device\n");
2106 		return -ENODEV;
2107 	}
2108 
2109 	if (dev >= SNDRV_CARDS)
2110 		return -ENODEV;
2111 	if (!enable[dev]) {
2112 		dev++;
2113 		return -ENOENT;
2114 	}
2115 
2116 	/*
2117 	 * stop probe if another Intel's DSP driver should be activated
2118 	 */
2119 	if (dmic_detect) {
2120 		err = snd_intel_dsp_driver_probe(pci);
2121 		if (err != SND_INTEL_DSP_DRIVER_ANY &&
2122 		    err != SND_INTEL_DSP_DRIVER_LEGACY)
2123 			return -ENODEV;
2124 	} else {
2125 		dev_warn(&pci->dev, "dmic_detect option is deprecated, pass snd-intel-dspcfg.dsp_driver=1 option instead\n");
2126 	}
2127 
2128 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2129 			   0, &card);
2130 	if (err < 0) {
2131 		dev_err(&pci->dev, "Error creating card!\n");
2132 		return err;
2133 	}
2134 
2135 	err = azx_create(card, pci, dev, pci_id->driver_data, &chip);
2136 	if (err < 0)
2137 		goto out_free;
2138 	card->private_data = chip;
2139 	hda = container_of(chip, struct hda_intel, chip);
2140 
2141 	pci_set_drvdata(pci, card);
2142 
2143 	err = register_vga_switcheroo(chip);
2144 	if (err < 0) {
2145 		dev_err(card->dev, "Error registering vga_switcheroo client\n");
2146 		goto out_free;
2147 	}
2148 
2149 	if (check_hdmi_disabled(pci)) {
2150 		dev_info(card->dev, "VGA controller is disabled\n");
2151 		dev_info(card->dev, "Delaying initialization\n");
2152 		chip->disabled = true;
2153 	}
2154 
2155 	schedule_probe = !chip->disabled;
2156 
2157 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2158 	if (patch[dev] && *patch[dev]) {
2159 		dev_info(card->dev, "Applying patch firmware '%s'\n",
2160 			 patch[dev]);
2161 		err = request_firmware_nowait(THIS_MODULE, true, patch[dev],
2162 					      &pci->dev, GFP_KERNEL, card,
2163 					      azx_firmware_cb);
2164 		if (err < 0)
2165 			goto out_free;
2166 		schedule_probe = false; /* continued in azx_firmware_cb() */
2167 	}
2168 #endif /* CONFIG_SND_HDA_PATCH_LOADER */
2169 
2170 #ifndef CONFIG_SND_HDA_I915
2171 	if (CONTROLLER_IN_GPU(pci))
2172 		dev_err(card->dev, "Haswell/Broadwell HDMI/DP must build in CONFIG_SND_HDA_I915\n");
2173 #endif
2174 
2175 	if (schedule_probe)
2176 		schedule_work(&hda->probe_work);
2177 
2178 	dev++;
2179 	if (chip->disabled)
2180 		complete_all(&hda->probe_wait);
2181 	return 0;
2182 
2183 out_free:
2184 	snd_card_free(card);
2185 	return err;
2186 }
2187 
2188 #ifdef CONFIG_PM
2189 /* On some boards setting power_save to a non 0 value leads to clicking /
2190  * popping sounds when ever we enter/leave powersaving mode. Ideally we would
2191  * figure out how to avoid these sounds, but that is not always feasible.
2192  * So we keep a list of devices where we disable powersaving as its known
2193  * to causes problems on these devices.
2194  */
2195 static const struct snd_pci_quirk power_save_blacklist[] = {
2196 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2197 	SND_PCI_QUIRK(0x1849, 0xc892, "Asrock B85M-ITX", 0),
2198 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2199 	SND_PCI_QUIRK(0x1849, 0x0397, "Asrock N68C-S UCC", 0),
2200 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2201 	SND_PCI_QUIRK(0x1849, 0x7662, "Asrock H81M-HDS", 0),
2202 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2203 	SND_PCI_QUIRK(0x1043, 0x8733, "Asus Prime X370-Pro", 0),
2204 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1581607 */
2205 	SND_PCI_QUIRK(0x1558, 0x3501, "Clevo W35xSS_370SS", 0),
2206 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2207 	SND_PCI_QUIRK(0x1558, 0x6504, "Clevo W65_67SB", 0),
2208 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2209 	SND_PCI_QUIRK(0x1028, 0x0497, "Dell Precision T3600", 0),
2210 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2211 	/* Note the P55A-UD3 and Z87-D3HP share the subsys id for the HDA dev */
2212 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte P55A-UD3 / Z87-D3HP", 0),
2213 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1525104 */
2214 	SND_PCI_QUIRK(0x8086, 0x2040, "Intel DZ77BH-55K", 0),
2215 	/* https://bugzilla.kernel.org/show_bug.cgi?id=199607 */
2216 	SND_PCI_QUIRK(0x8086, 0x2057, "Intel NUC5i7RYB", 0),
2217 	/* https://bugs.launchpad.net/bugs/1821663 */
2218 	SND_PCI_QUIRK(0x8086, 0x2064, "Intel SDP 8086:2064", 0),
2219 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1520902 */
2220 	SND_PCI_QUIRK(0x8086, 0x2068, "Intel NUC7i3BNB", 0),
2221 	/* https://bugzilla.kernel.org/show_bug.cgi?id=198611 */
2222 	SND_PCI_QUIRK(0x17aa, 0x2227, "Lenovo X1 Carbon 3rd Gen", 0),
2223 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1689623 */
2224 	SND_PCI_QUIRK(0x17aa, 0x367b, "Lenovo IdeaCentre B550", 0),
2225 	/* https://bugzilla.redhat.com/show_bug.cgi?id=1572975 */
2226 	SND_PCI_QUIRK(0x17aa, 0x36a7, "Lenovo C50 All in one", 0),
2227 	/* https://bugs.launchpad.net/bugs/1821663 */
2228 	SND_PCI_QUIRK(0x1631, 0xe017, "Packard Bell NEC IMEDIA 5204", 0),
2229 	{}
2230 };
2231 #endif /* CONFIG_PM */
2232 
2233 static void set_default_power_save(struct azx *chip)
2234 {
2235 	int val = power_save;
2236 
2237 #ifdef CONFIG_PM
2238 	if (pm_blacklist) {
2239 		const struct snd_pci_quirk *q;
2240 
2241 		q = snd_pci_quirk_lookup(chip->pci, power_save_blacklist);
2242 		if (q && val) {
2243 			dev_info(chip->card->dev, "device %04x:%04x is on the power_save blacklist, forcing power_save to 0\n",
2244 				 q->subvendor, q->subdevice);
2245 			val = 0;
2246 		}
2247 	}
2248 #endif /* CONFIG_PM */
2249 	snd_hda_set_power_save(&chip->bus, val * 1000);
2250 }
2251 
2252 /* number of codec slots for each chipset: 0 = default slots (i.e. 4) */
2253 static const unsigned int azx_max_codecs[AZX_NUM_DRIVERS] = {
2254 	[AZX_DRIVER_NVIDIA] = 8,
2255 	[AZX_DRIVER_TERA] = 1,
2256 };
2257 
2258 static int azx_probe_continue(struct azx *chip)
2259 {
2260 	struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
2261 	struct hdac_bus *bus = azx_bus(chip);
2262 	struct pci_dev *pci = chip->pci;
2263 	int dev = chip->dev_index;
2264 	int err;
2265 
2266 	to_hda_bus(bus)->bus_probing = 1;
2267 	hda->probe_continued = 1;
2268 
2269 	/* bind with i915 if needed */
2270 	if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) {
2271 		err = snd_hdac_i915_init(bus);
2272 		if (err < 0) {
2273 			/* if the controller is bound only with HDMI/DP
2274 			 * (for HSW and BDW), we need to abort the probe;
2275 			 * for other chips, still continue probing as other
2276 			 * codecs can be on the same link.
2277 			 */
2278 			if (CONTROLLER_IN_GPU(pci)) {
2279 				dev_err(chip->card->dev,
2280 					"HSW/BDW HD-audio HDMI/DP requires binding with gfx driver\n");
2281 				goto out_free;
2282 			} else {
2283 				/* don't bother any longer */
2284 				chip->driver_caps &= ~AZX_DCAPS_I915_COMPONENT;
2285 			}
2286 		}
2287 
2288 		/* HSW/BDW controllers need this power */
2289 		if (CONTROLLER_IN_GPU(pci))
2290 			hda->need_i915_power = 1;
2291 	}
2292 
2293 	/* Request display power well for the HDA controller or codec. For
2294 	 * Haswell/Broadwell, both the display HDA controller and codec need
2295 	 * this power. For other platforms, like Baytrail/Braswell, only the
2296 	 * display codec needs the power and it can be released after probe.
2297 	 */
2298 	display_power(chip, true);
2299 
2300 	err = azx_first_init(chip);
2301 	if (err < 0)
2302 		goto out_free;
2303 
2304 #ifdef CONFIG_SND_HDA_INPUT_BEEP
2305 	chip->beep_mode = beep_mode[dev];
2306 #endif
2307 
2308 	/* create codec instances */
2309 	if (bus->codec_mask) {
2310 		err = azx_probe_codecs(chip, azx_max_codecs[chip->driver_type]);
2311 		if (err < 0)
2312 			goto out_free;
2313 	}
2314 
2315 #ifdef CONFIG_SND_HDA_PATCH_LOADER
2316 	if (chip->fw) {
2317 		err = snd_hda_load_patch(&chip->bus, chip->fw->size,
2318 					 chip->fw->data);
2319 		if (err < 0)
2320 			goto out_free;
2321 #ifndef CONFIG_PM
2322 		release_firmware(chip->fw); /* no longer needed */
2323 		chip->fw = NULL;
2324 #endif
2325 	}
2326 #endif
2327 	if (bus->codec_mask && !(probe_only[dev] & 1)) {
2328 		err = azx_codec_configure(chip);
2329 		if (err < 0)
2330 			goto out_free;
2331 	}
2332 
2333 	err = snd_card_register(chip->card);
2334 	if (err < 0)
2335 		goto out_free;
2336 
2337 	setup_vga_switcheroo_runtime_pm(chip);
2338 
2339 	chip->running = 1;
2340 	azx_add_card_list(chip);
2341 
2342 	set_default_power_save(chip);
2343 
2344 	if (azx_has_pm_runtime(chip)) {
2345 		pm_runtime_use_autosuspend(&pci->dev);
2346 		pm_runtime_allow(&pci->dev);
2347 		pm_runtime_put_autosuspend(&pci->dev);
2348 	}
2349 
2350 out_free:
2351 	if (err < 0) {
2352 		azx_free(chip);
2353 		return err;
2354 	}
2355 
2356 	if (!hda->need_i915_power)
2357 		display_power(chip, false);
2358 	complete_all(&hda->probe_wait);
2359 	to_hda_bus(bus)->bus_probing = 0;
2360 	return 0;
2361 }
2362 
2363 static void azx_remove(struct pci_dev *pci)
2364 {
2365 	struct snd_card *card = pci_get_drvdata(pci);
2366 	struct azx *chip;
2367 	struct hda_intel *hda;
2368 
2369 	if (card) {
2370 		/* cancel the pending probing work */
2371 		chip = card->private_data;
2372 		hda = container_of(chip, struct hda_intel, chip);
2373 		/* FIXME: below is an ugly workaround.
2374 		 * Both device_release_driver() and driver_probe_device()
2375 		 * take *both* the device's and its parent's lock before
2376 		 * calling the remove() and probe() callbacks.  The codec
2377 		 * probe takes the locks of both the codec itself and its
2378 		 * parent, i.e. the PCI controller dev.  Meanwhile, when
2379 		 * the PCI controller is unbound, it takes its lock, too
2380 		 * ==> ouch, a deadlock!
2381 		 * As a workaround, we unlock temporarily here the controller
2382 		 * device during cancel_work_sync() call.
2383 		 */
2384 		device_unlock(&pci->dev);
2385 		cancel_work_sync(&hda->probe_work);
2386 		device_lock(&pci->dev);
2387 
2388 		snd_card_free(card);
2389 	}
2390 }
2391 
2392 static void azx_shutdown(struct pci_dev *pci)
2393 {
2394 	struct snd_card *card = pci_get_drvdata(pci);
2395 	struct azx *chip;
2396 
2397 	if (!card)
2398 		return;
2399 	chip = card->private_data;
2400 	if (chip && chip->running)
2401 		azx_stop_chip(chip);
2402 }
2403 
2404 /* PCI IDs */
2405 static const struct pci_device_id azx_ids[] = {
2406 	/* CPT */
2407 	{ PCI_DEVICE(0x8086, 0x1c20),
2408 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2409 	/* PBG */
2410 	{ PCI_DEVICE(0x8086, 0x1d20),
2411 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2412 	/* Panther Point */
2413 	{ PCI_DEVICE(0x8086, 0x1e20),
2414 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH_NOPM },
2415 	/* Lynx Point */
2416 	{ PCI_DEVICE(0x8086, 0x8c20),
2417 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2418 	/* 9 Series */
2419 	{ PCI_DEVICE(0x8086, 0x8ca0),
2420 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2421 	/* Wellsburg */
2422 	{ PCI_DEVICE(0x8086, 0x8d20),
2423 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2424 	{ PCI_DEVICE(0x8086, 0x8d21),
2425 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2426 	/* Lewisburg */
2427 	{ PCI_DEVICE(0x8086, 0xa1f0),
2428 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2429 	{ PCI_DEVICE(0x8086, 0xa270),
2430 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_SKYLAKE },
2431 	/* Lynx Point-LP */
2432 	{ PCI_DEVICE(0x8086, 0x9c20),
2433 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2434 	/* Lynx Point-LP */
2435 	{ PCI_DEVICE(0x8086, 0x9c21),
2436 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2437 	/* Wildcat Point-LP */
2438 	{ PCI_DEVICE(0x8086, 0x9ca0),
2439 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
2440 	/* Sunrise Point */
2441 	{ PCI_DEVICE(0x8086, 0xa170),
2442 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2443 	/* Sunrise Point-LP */
2444 	{ PCI_DEVICE(0x8086, 0x9d70),
2445 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2446 	/* Kabylake */
2447 	{ PCI_DEVICE(0x8086, 0xa171),
2448 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2449 	/* Kabylake-LP */
2450 	{ PCI_DEVICE(0x8086, 0x9d71),
2451 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2452 	/* Kabylake-H */
2453 	{ PCI_DEVICE(0x8086, 0xa2f0),
2454 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE },
2455 	/* Coffelake */
2456 	{ PCI_DEVICE(0x8086, 0xa348),
2457 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2458 	/* Cannonlake */
2459 	{ PCI_DEVICE(0x8086, 0x9dc8),
2460 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2461 	/* CometLake-LP */
2462 	{ PCI_DEVICE(0x8086, 0x02C8),
2463 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2464 	/* CometLake-H */
2465 	{ PCI_DEVICE(0x8086, 0x06C8),
2466 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2467 	/* CometLake-S */
2468 	{ PCI_DEVICE(0x8086, 0xa3f0),
2469 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2470 	/* Icelake */
2471 	{ PCI_DEVICE(0x8086, 0x34c8),
2472 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2473 	/* Jasperlake */
2474 	{ PCI_DEVICE(0x8086, 0x38c8),
2475 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2476 	{ PCI_DEVICE(0x8086, 0x4dc8),
2477 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2478 	/* Tigerlake */
2479 	{ PCI_DEVICE(0x8086, 0xa0c8),
2480 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2481 	/* Elkhart Lake */
2482 	{ PCI_DEVICE(0x8086, 0x4b55),
2483 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
2484 	/* Broxton-P(Apollolake) */
2485 	{ PCI_DEVICE(0x8086, 0x5a98),
2486 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2487 	/* Broxton-T */
2488 	{ PCI_DEVICE(0x8086, 0x1a98),
2489 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2490 	/* Gemini-Lake */
2491 	{ PCI_DEVICE(0x8086, 0x3198),
2492 	  .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_BROXTON },
2493 	/* Haswell */
2494 	{ PCI_DEVICE(0x8086, 0x0a0c),
2495 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2496 	{ PCI_DEVICE(0x8086, 0x0c0c),
2497 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2498 	{ PCI_DEVICE(0x8086, 0x0d0c),
2499 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
2500 	/* Broadwell */
2501 	{ PCI_DEVICE(0x8086, 0x160c),
2502 	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_BROADWELL },
2503 	/* 5 Series/3400 */
2504 	{ PCI_DEVICE(0x8086, 0x3b56),
2505 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
2506 	/* Poulsbo */
2507 	{ PCI_DEVICE(0x8086, 0x811b),
2508 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2509 	/* Oaktrail */
2510 	{ PCI_DEVICE(0x8086, 0x080a),
2511 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
2512 	/* BayTrail */
2513 	{ PCI_DEVICE(0x8086, 0x0f04),
2514 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BAYTRAIL },
2515 	/* Braswell */
2516 	{ PCI_DEVICE(0x8086, 0x2284),
2517 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_BRASWELL },
2518 	/* ICH6 */
2519 	{ PCI_DEVICE(0x8086, 0x2668),
2520 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2521 	/* ICH7 */
2522 	{ PCI_DEVICE(0x8086, 0x27d8),
2523 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2524 	/* ESB2 */
2525 	{ PCI_DEVICE(0x8086, 0x269a),
2526 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2527 	/* ICH8 */
2528 	{ PCI_DEVICE(0x8086, 0x284b),
2529 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2530 	/* ICH9 */
2531 	{ PCI_DEVICE(0x8086, 0x293e),
2532 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2533 	/* ICH9 */
2534 	{ PCI_DEVICE(0x8086, 0x293f),
2535 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2536 	/* ICH10 */
2537 	{ PCI_DEVICE(0x8086, 0x3a3e),
2538 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2539 	/* ICH10 */
2540 	{ PCI_DEVICE(0x8086, 0x3a6e),
2541 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_INTEL_ICH },
2542 	/* Generic Intel */
2543 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_ANY_ID),
2544 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2545 	  .class_mask = 0xffffff,
2546 	  .driver_data = AZX_DRIVER_ICH | AZX_DCAPS_NO_ALIGN_BUFSIZE },
2547 	/* ATI SB 450/600/700/800/900 */
2548 	{ PCI_DEVICE(0x1002, 0x437b),
2549 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2550 	{ PCI_DEVICE(0x1002, 0x4383),
2551 	  .driver_data = AZX_DRIVER_ATI | AZX_DCAPS_PRESET_ATI_SB },
2552 	/* AMD Hudson */
2553 	{ PCI_DEVICE(0x1022, 0x780d),
2554 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB },
2555 	/* AMD, X370 & co */
2556 	{ PCI_DEVICE(0x1022, 0x1457),
2557 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2558 	/* AMD, X570 & co */
2559 	{ PCI_DEVICE(0x1022, 0x1487),
2560 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2561 	/* AMD Stoney */
2562 	{ PCI_DEVICE(0x1022, 0x157a),
2563 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_SB |
2564 			 AZX_DCAPS_PM_RUNTIME },
2565 	/* AMD Raven */
2566 	{ PCI_DEVICE(0x1022, 0x15e3),
2567 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_AMD_SB },
2568 	/* ATI HDMI */
2569 	{ PCI_DEVICE(0x1002, 0x0002),
2570 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2571 	{ PCI_DEVICE(0x1002, 0x1308),
2572 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2573 	{ PCI_DEVICE(0x1002, 0x157a),
2574 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2575 	{ PCI_DEVICE(0x1002, 0x15b3),
2576 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2577 	{ PCI_DEVICE(0x1002, 0x793b),
2578 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2579 	{ PCI_DEVICE(0x1002, 0x7919),
2580 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2581 	{ PCI_DEVICE(0x1002, 0x960f),
2582 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2583 	{ PCI_DEVICE(0x1002, 0x970f),
2584 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2585 	{ PCI_DEVICE(0x1002, 0x9840),
2586 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2587 	{ PCI_DEVICE(0x1002, 0xaa00),
2588 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2589 	{ PCI_DEVICE(0x1002, 0xaa08),
2590 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2591 	{ PCI_DEVICE(0x1002, 0xaa10),
2592 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2593 	{ PCI_DEVICE(0x1002, 0xaa18),
2594 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2595 	{ PCI_DEVICE(0x1002, 0xaa20),
2596 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2597 	{ PCI_DEVICE(0x1002, 0xaa28),
2598 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2599 	{ PCI_DEVICE(0x1002, 0xaa30),
2600 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2601 	{ PCI_DEVICE(0x1002, 0xaa38),
2602 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2603 	{ PCI_DEVICE(0x1002, 0xaa40),
2604 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2605 	{ PCI_DEVICE(0x1002, 0xaa48),
2606 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2607 	{ PCI_DEVICE(0x1002, 0xaa50),
2608 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2609 	{ PCI_DEVICE(0x1002, 0xaa58),
2610 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2611 	{ PCI_DEVICE(0x1002, 0xaa60),
2612 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2613 	{ PCI_DEVICE(0x1002, 0xaa68),
2614 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2615 	{ PCI_DEVICE(0x1002, 0xaa80),
2616 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2617 	{ PCI_DEVICE(0x1002, 0xaa88),
2618 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2619 	{ PCI_DEVICE(0x1002, 0xaa90),
2620 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2621 	{ PCI_DEVICE(0x1002, 0xaa98),
2622 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
2623 	{ PCI_DEVICE(0x1002, 0x9902),
2624 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2625 	{ PCI_DEVICE(0x1002, 0xaaa0),
2626 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2627 	{ PCI_DEVICE(0x1002, 0xaaa8),
2628 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2629 	{ PCI_DEVICE(0x1002, 0xaab0),
2630 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2631 	{ PCI_DEVICE(0x1002, 0xaac0),
2632 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2633 	{ PCI_DEVICE(0x1002, 0xaac8),
2634 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS },
2635 	{ PCI_DEVICE(0x1002, 0xaad8),
2636 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2637 	  AZX_DCAPS_PM_RUNTIME },
2638 	{ PCI_DEVICE(0x1002, 0xaae0),
2639 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2640 	  AZX_DCAPS_PM_RUNTIME },
2641 	{ PCI_DEVICE(0x1002, 0xaae8),
2642 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2643 	  AZX_DCAPS_PM_RUNTIME },
2644 	{ PCI_DEVICE(0x1002, 0xaaf0),
2645 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2646 	  AZX_DCAPS_PM_RUNTIME },
2647 	{ PCI_DEVICE(0x1002, 0xaaf8),
2648 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2649 	  AZX_DCAPS_PM_RUNTIME },
2650 	{ PCI_DEVICE(0x1002, 0xab00),
2651 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2652 	  AZX_DCAPS_PM_RUNTIME },
2653 	{ PCI_DEVICE(0x1002, 0xab08),
2654 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2655 	  AZX_DCAPS_PM_RUNTIME },
2656 	{ PCI_DEVICE(0x1002, 0xab10),
2657 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2658 	  AZX_DCAPS_PM_RUNTIME },
2659 	{ PCI_DEVICE(0x1002, 0xab18),
2660 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2661 	  AZX_DCAPS_PM_RUNTIME },
2662 	{ PCI_DEVICE(0x1002, 0xab20),
2663 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2664 	  AZX_DCAPS_PM_RUNTIME },
2665 	{ PCI_DEVICE(0x1002, 0xab38),
2666 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI_NS |
2667 	  AZX_DCAPS_PM_RUNTIME },
2668 	/* VIA VT8251/VT8237A */
2669 	{ PCI_DEVICE(0x1106, 0x3288), .driver_data = AZX_DRIVER_VIA },
2670 	/* VIA GFX VT7122/VX900 */
2671 	{ PCI_DEVICE(0x1106, 0x9170), .driver_data = AZX_DRIVER_GENERIC },
2672 	/* VIA GFX VT6122/VX11 */
2673 	{ PCI_DEVICE(0x1106, 0x9140), .driver_data = AZX_DRIVER_GENERIC },
2674 	/* SIS966 */
2675 	{ PCI_DEVICE(0x1039, 0x7502), .driver_data = AZX_DRIVER_SIS },
2676 	/* ULI M5461 */
2677 	{ PCI_DEVICE(0x10b9, 0x5461), .driver_data = AZX_DRIVER_ULI },
2678 	/* NVIDIA MCP */
2679 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
2680 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2681 	  .class_mask = 0xffffff,
2682 	  .driver_data = AZX_DRIVER_NVIDIA | AZX_DCAPS_PRESET_NVIDIA },
2683 	/* Teradici */
2684 	{ PCI_DEVICE(0x6549, 0x1200),
2685 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2686 	{ PCI_DEVICE(0x6549, 0x2200),
2687 	  .driver_data = AZX_DRIVER_TERA | AZX_DCAPS_NO_64BIT },
2688 	/* Creative X-Fi (CA0110-IBG) */
2689 	/* CTHDA chips */
2690 	{ PCI_DEVICE(0x1102, 0x0010),
2691 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2692 	{ PCI_DEVICE(0x1102, 0x0012),
2693 	  .driver_data = AZX_DRIVER_CTHDA | AZX_DCAPS_PRESET_CTHDA },
2694 #if !IS_ENABLED(CONFIG_SND_CTXFI)
2695 	/* the following entry conflicts with snd-ctxfi driver,
2696 	 * as ctxfi driver mutates from HD-audio to native mode with
2697 	 * a special command sequence.
2698 	 */
2699 	{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
2700 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2701 	  .class_mask = 0xffffff,
2702 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2703 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2704 #else
2705 	/* this entry seems still valid -- i.e. without emu20kx chip */
2706 	{ PCI_DEVICE(0x1102, 0x0009),
2707 	  .driver_data = AZX_DRIVER_CTX | AZX_DCAPS_CTX_WORKAROUND |
2708 	  AZX_DCAPS_NO_64BIT | AZX_DCAPS_POSFIX_LPIB },
2709 #endif
2710 	/* CM8888 */
2711 	{ PCI_DEVICE(0x13f6, 0x5011),
2712 	  .driver_data = AZX_DRIVER_CMEDIA |
2713 	  AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_SNOOP_OFF },
2714 	/* Vortex86MX */
2715 	{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },
2716 	/* VMware HDAudio */
2717 	{ PCI_DEVICE(0x15ad, 0x1977), .driver_data = AZX_DRIVER_GENERIC },
2718 	/* AMD/ATI Generic, PCI class code and Vendor ID for HD Audio */
2719 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
2720 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2721 	  .class_mask = 0xffffff,
2722 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2723 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_ANY_ID),
2724 	  .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
2725 	  .class_mask = 0xffffff,
2726 	  .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI },
2727 	/* Zhaoxin */
2728 	{ PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN },
2729 	{ 0, }
2730 };
2731 MODULE_DEVICE_TABLE(pci, azx_ids);
2732 
2733 /* pci_driver definition */
2734 static struct pci_driver azx_driver = {
2735 	.name = KBUILD_MODNAME,
2736 	.id_table = azx_ids,
2737 	.probe = azx_probe,
2738 	.remove = azx_remove,
2739 	.shutdown = azx_shutdown,
2740 	.driver = {
2741 		.pm = AZX_PM_OPS,
2742 	},
2743 };
2744 
2745 module_pci_driver(azx_driver);
2746