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  1/*
  2 * BIOS auto-parser helper functions for HD-audio
  3 *
  4 * Copyright (c) 2012 Takashi Iwai <tiwai@suse.de>
  5 *
  6 * This driver is free software; you can redistribute it and/or modify
  7 * it under the terms of the GNU General Public License as published by
  8 * the Free Software Foundation; either version 2 of the License, or
  9 * (at your option) any later version.
 10 */
 11
 12#include <linux/slab.h>
 13#include <linux/export.h>
 14#include <sound/core.h>
 15#include "hda_codec.h"
 16#include "hda_local.h"
 17#include "hda_auto_parser.h"
 18
 19#define SFX	"hda_codec: "
 20
 21/*
 22 * Helper for automatic pin configuration
 23 */
 24
 25static int is_in_nid_list(hda_nid_t nid, const hda_nid_t *list)
 26{
 27	for (; *list; list++)
 28		if (*list == nid)
 29			return 1;
 30	return 0;
 31}
 32
 33
 34/*
 35 * Sort an associated group of pins according to their sequence numbers.
 36 */
 37static void sort_pins_by_sequence(hda_nid_t *pins, short *sequences,
 38				  int num_pins)
 39{
 40	int i, j;
 41	short seq;
 42	hda_nid_t nid;
 43
 44	for (i = 0; i < num_pins; i++) {
 45		for (j = i + 1; j < num_pins; j++) {
 46			if (sequences[i] > sequences[j]) {
 47				seq = sequences[i];
 48				sequences[i] = sequences[j];
 49				sequences[j] = seq;
 50				nid = pins[i];
 51				pins[i] = pins[j];
 52				pins[j] = nid;
 53			}
 54		}
 55	}
 56}
 57
 58
 59/* add the found input-pin to the cfg->inputs[] table */
 60static void add_auto_cfg_input_pin(struct auto_pin_cfg *cfg, hda_nid_t nid,
 61				   int type)
 62{
 63	if (cfg->num_inputs < AUTO_CFG_MAX_INS) {
 64		cfg->inputs[cfg->num_inputs].pin = nid;
 65		cfg->inputs[cfg->num_inputs].type = type;
 66		cfg->num_inputs++;
 67	}
 68}
 69
 70/* sort inputs in the order of AUTO_PIN_* type */
 71static void sort_autocfg_input_pins(struct auto_pin_cfg *cfg)
 72{
 73	int i, j;
 74
 75	for (i = 0; i < cfg->num_inputs; i++) {
 76		for (j = i + 1; j < cfg->num_inputs; j++) {
 77			if (cfg->inputs[i].type > cfg->inputs[j].type) {
 78				struct auto_pin_cfg_item tmp;
 79				tmp = cfg->inputs[i];
 80				cfg->inputs[i] = cfg->inputs[j];
 81				cfg->inputs[j] = tmp;
 82			}
 83		}
 84	}
 85}
 86
 87/* Reorder the surround channels
 88 * ALSA sequence is front/surr/clfe/side
 89 * HDA sequence is:
 90 *    4-ch: front/surr  =>  OK as it is
 91 *    6-ch: front/clfe/surr
 92 *    8-ch: front/clfe/rear/side|fc
 93 */
 94static void reorder_outputs(unsigned int nums, hda_nid_t *pins)
 95{
 96	hda_nid_t nid;
 97
 98	switch (nums) {
 99	case 3:
100	case 4:
101		nid = pins[1];
102		pins[1] = pins[2];
103		pins[2] = nid;
104		break;
105	}
106}
107
108/*
109 * Parse all pin widgets and store the useful pin nids to cfg
110 *
111 * The number of line-outs or any primary output is stored in line_outs,
112 * and the corresponding output pins are assigned to line_out_pins[],
113 * in the order of front, rear, CLFE, side, ...
114 *
115 * If more extra outputs (speaker and headphone) are found, the pins are
116 * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
117 * is detected, one of speaker of HP pins is assigned as the primary
118 * output, i.e. to line_out_pins[0].  So, line_outs is always positive
119 * if any analog output exists.
120 *
121 * The analog input pins are assigned to inputs array.
122 * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
123 * respectively.
124 */
125int snd_hda_parse_pin_defcfg(struct hda_codec *codec,
126			     struct auto_pin_cfg *cfg,
127			     const hda_nid_t *ignore_nids,
128			     unsigned int cond_flags)
129{
130	hda_nid_t nid, end_nid;
131	short seq, assoc_line_out;
132	short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
133	short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
134	short sequences_hp[ARRAY_SIZE(cfg->hp_pins)];
135	int i;
136
137	memset(cfg, 0, sizeof(*cfg));
138
139	memset(sequences_line_out, 0, sizeof(sequences_line_out));
140	memset(sequences_speaker, 0, sizeof(sequences_speaker));
141	memset(sequences_hp, 0, sizeof(sequences_hp));
142	assoc_line_out = 0;
143
144	codec->ignore_misc_bit = true;
145	end_nid = codec->start_nid + codec->num_nodes;
146	for (nid = codec->start_nid; nid < end_nid; nid++) {
147		unsigned int wid_caps = get_wcaps(codec, nid);
148		unsigned int wid_type = get_wcaps_type(wid_caps);
149		unsigned int def_conf;
150		short assoc, loc, conn, dev;
151
152		/* read all default configuration for pin complex */
153		if (wid_type != AC_WID_PIN)
154			continue;
155		/* ignore the given nids (e.g. pc-beep returns error) */
156		if (ignore_nids && is_in_nid_list(nid, ignore_nids))
157			continue;
158
159		def_conf = snd_hda_codec_get_pincfg(codec, nid);
160		if (!(get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
161		      AC_DEFCFG_MISC_NO_PRESENCE))
162			codec->ignore_misc_bit = false;
163		conn = get_defcfg_connect(def_conf);
164		if (conn == AC_JACK_PORT_NONE)
165			continue;
166		loc = get_defcfg_location(def_conf);
167		dev = get_defcfg_device(def_conf);
168
169		/* workaround for buggy BIOS setups */
170		if (dev == AC_JACK_LINE_OUT) {
171			if (conn == AC_JACK_PORT_FIXED)
172				dev = AC_JACK_SPEAKER;
173		}
174
175		switch (dev) {
176		case AC_JACK_LINE_OUT:
177			seq = get_defcfg_sequence(def_conf);
178			assoc = get_defcfg_association(def_conf);
179
180			if (!(wid_caps & AC_WCAP_STEREO))
181				if (!cfg->mono_out_pin)
182					cfg->mono_out_pin = nid;
183			if (!assoc)
184				continue;
185			if (!assoc_line_out)
186				assoc_line_out = assoc;
187			else if (assoc_line_out != assoc)
188				continue;
189			if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
190				continue;
191			cfg->line_out_pins[cfg->line_outs] = nid;
192			sequences_line_out[cfg->line_outs] = seq;
193			cfg->line_outs++;
194			break;
195		case AC_JACK_SPEAKER:
196			seq = get_defcfg_sequence(def_conf);
197			assoc = get_defcfg_association(def_conf);
198			if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
199				continue;
200			cfg->speaker_pins[cfg->speaker_outs] = nid;
201			sequences_speaker[cfg->speaker_outs] = (assoc << 4) | seq;
202			cfg->speaker_outs++;
203			break;
204		case AC_JACK_HP_OUT:
205			seq = get_defcfg_sequence(def_conf);
206			assoc = get_defcfg_association(def_conf);
207			if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
208				continue;
209			cfg->hp_pins[cfg->hp_outs] = nid;
210			sequences_hp[cfg->hp_outs] = (assoc << 4) | seq;
211			cfg->hp_outs++;
212			break;
213		case AC_JACK_MIC_IN:
214			add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_MIC);
215			break;
216		case AC_JACK_LINE_IN:
217			add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_LINE_IN);
218			break;
219		case AC_JACK_CD:
220			add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_CD);
221			break;
222		case AC_JACK_AUX:
223			add_auto_cfg_input_pin(cfg, nid, AUTO_PIN_AUX);
224			break;
225		case AC_JACK_SPDIF_OUT:
226		case AC_JACK_DIG_OTHER_OUT:
227			if (cfg->dig_outs >= ARRAY_SIZE(cfg->dig_out_pins))
228				continue;
229			cfg->dig_out_pins[cfg->dig_outs] = nid;
230			cfg->dig_out_type[cfg->dig_outs] =
231				(loc == AC_JACK_LOC_HDMI) ?
232				HDA_PCM_TYPE_HDMI : HDA_PCM_TYPE_SPDIF;
233			cfg->dig_outs++;
234			break;
235		case AC_JACK_SPDIF_IN:
236		case AC_JACK_DIG_OTHER_IN:
237			cfg->dig_in_pin = nid;
238			if (loc == AC_JACK_LOC_HDMI)
239				cfg->dig_in_type = HDA_PCM_TYPE_HDMI;
240			else
241				cfg->dig_in_type = HDA_PCM_TYPE_SPDIF;
242			break;
243		}
244	}
245
246	/* FIX-UP:
247	 * If no line-out is defined but multiple HPs are found,
248	 * some of them might be the real line-outs.
249	 */
250	if (!cfg->line_outs && cfg->hp_outs > 1 &&
251	    !(cond_flags & HDA_PINCFG_NO_HP_FIXUP)) {
252		int i = 0;
253		while (i < cfg->hp_outs) {
254			/* The real HPs should have the sequence 0x0f */
255			if ((sequences_hp[i] & 0x0f) == 0x0f) {
256				i++;
257				continue;
258			}
259			/* Move it to the line-out table */
260			cfg->line_out_pins[cfg->line_outs] = cfg->hp_pins[i];
261			sequences_line_out[cfg->line_outs] = sequences_hp[i];
262			cfg->line_outs++;
263			cfg->hp_outs--;
264			memmove(cfg->hp_pins + i, cfg->hp_pins + i + 1,
265				sizeof(cfg->hp_pins[0]) * (cfg->hp_outs - i));
266			memmove(sequences_hp + i, sequences_hp + i + 1,
267				sizeof(sequences_hp[0]) * (cfg->hp_outs - i));
268		}
269		memset(cfg->hp_pins + cfg->hp_outs, 0,
270		       sizeof(hda_nid_t) * (AUTO_CFG_MAX_OUTS - cfg->hp_outs));
271		if (!cfg->hp_outs)
272			cfg->line_out_type = AUTO_PIN_HP_OUT;
273
274	}
275
276	/* sort by sequence */
277	sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
278			      cfg->line_outs);
279	sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
280			      cfg->speaker_outs);
281	sort_pins_by_sequence(cfg->hp_pins, sequences_hp,
282			      cfg->hp_outs);
283
284	/*
285	 * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
286	 * as a primary output
287	 */
288	if (!cfg->line_outs &&
289	    !(cond_flags & HDA_PINCFG_NO_LO_FIXUP)) {
290		if (cfg->speaker_outs) {
291			cfg->line_outs = cfg->speaker_outs;
292			memcpy(cfg->line_out_pins, cfg->speaker_pins,
293			       sizeof(cfg->speaker_pins));
294			cfg->speaker_outs = 0;
295			memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
296			cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
297		} else if (cfg->hp_outs) {
298			cfg->line_outs = cfg->hp_outs;
299			memcpy(cfg->line_out_pins, cfg->hp_pins,
300			       sizeof(cfg->hp_pins));
301			cfg->hp_outs = 0;
302			memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
303			cfg->line_out_type = AUTO_PIN_HP_OUT;
304		}
305	}
306
307	reorder_outputs(cfg->line_outs, cfg->line_out_pins);
308	reorder_outputs(cfg->hp_outs, cfg->hp_pins);
309	reorder_outputs(cfg->speaker_outs, cfg->speaker_pins);
310
311	sort_autocfg_input_pins(cfg);
312
313	/*
314	 * debug prints of the parsed results
315	 */
316	snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x) type:%s\n",
317		   cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
318		   cfg->line_out_pins[2], cfg->line_out_pins[3],
319		   cfg->line_out_pins[4],
320		   cfg->line_out_type == AUTO_PIN_HP_OUT ? "hp" :
321		   (cfg->line_out_type == AUTO_PIN_SPEAKER_OUT ?
322		    "speaker" : "line"));
323	snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
324		   cfg->speaker_outs, cfg->speaker_pins[0],
325		   cfg->speaker_pins[1], cfg->speaker_pins[2],
326		   cfg->speaker_pins[3], cfg->speaker_pins[4]);
327	snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
328		   cfg->hp_outs, cfg->hp_pins[0],
329		   cfg->hp_pins[1], cfg->hp_pins[2],
330		   cfg->hp_pins[3], cfg->hp_pins[4]);
331	snd_printd("   mono: mono_out=0x%x\n", cfg->mono_out_pin);
332	if (cfg->dig_outs)
333		snd_printd("   dig-out=0x%x/0x%x\n",
334			   cfg->dig_out_pins[0], cfg->dig_out_pins[1]);
335	snd_printd("   inputs:");
336	for (i = 0; i < cfg->num_inputs; i++) {
337		snd_printd(" %s=0x%x",
338			    hda_get_autocfg_input_label(codec, cfg, i),
339			    cfg->inputs[i].pin);
340	}
341	snd_printd("\n");
342	if (cfg->dig_in_pin)
343		snd_printd("   dig-in=0x%x\n", cfg->dig_in_pin);
344
345	return 0;
346}
347EXPORT_SYMBOL_HDA(snd_hda_parse_pin_defcfg);
348
349int snd_hda_get_input_pin_attr(unsigned int def_conf)
350{
351	unsigned int loc = get_defcfg_location(def_conf);
352	unsigned int conn = get_defcfg_connect(def_conf);
353	if (conn == AC_JACK_PORT_NONE)
354		return INPUT_PIN_ATTR_UNUSED;
355	/* Windows may claim the internal mic to be BOTH, too */
356	if (conn == AC_JACK_PORT_FIXED || conn == AC_JACK_PORT_BOTH)
357		return INPUT_PIN_ATTR_INT;
358	if ((loc & 0x30) == AC_JACK_LOC_INTERNAL)
359		return INPUT_PIN_ATTR_INT;
360	if ((loc & 0x30) == AC_JACK_LOC_SEPARATE)
361		return INPUT_PIN_ATTR_DOCK;
362	if (loc == AC_JACK_LOC_REAR)
363		return INPUT_PIN_ATTR_REAR;
364	if (loc == AC_JACK_LOC_FRONT)
365		return INPUT_PIN_ATTR_FRONT;
366	return INPUT_PIN_ATTR_NORMAL;
367}
368EXPORT_SYMBOL_HDA(snd_hda_get_input_pin_attr);
369
370/**
371 * hda_get_input_pin_label - Give a label for the given input pin
372 *
373 * When check_location is true, the function checks the pin location
374 * for mic and line-in pins, and set an appropriate prefix like "Front",
375 * "Rear", "Internal".
376 */
377
378static const char *hda_get_input_pin_label(struct hda_codec *codec,
379					   hda_nid_t pin, bool check_location)
380{
381	unsigned int def_conf;
382	static const char * const mic_names[] = {
383		"Internal Mic", "Dock Mic", "Mic", "Front Mic", "Rear Mic",
384	};
385	int attr;
386
387	def_conf = snd_hda_codec_get_pincfg(codec, pin);
388
389	switch (get_defcfg_device(def_conf)) {
390	case AC_JACK_MIC_IN:
391		if (!check_location)
392			return "Mic";
393		attr = snd_hda_get_input_pin_attr(def_conf);
394		if (!attr)
395			return "None";
396		return mic_names[attr - 1];
397	case AC_JACK_LINE_IN:
398		if (!check_location)
399			return "Line";
400		attr = snd_hda_get_input_pin_attr(def_conf);
401		if (!attr)
402			return "None";
403		if (attr == INPUT_PIN_ATTR_DOCK)
404			return "Dock Line";
405		return "Line";
406	case AC_JACK_AUX:
407		return "Aux";
408	case AC_JACK_CD:
409		return "CD";
410	case AC_JACK_SPDIF_IN:
411		return "SPDIF In";
412	case AC_JACK_DIG_OTHER_IN:
413		return "Digital In";
414	default:
415		return "Misc";
416	}
417}
418
419/* Check whether the location prefix needs to be added to the label.
420 * If all mic-jacks are in the same location (e.g. rear panel), we don't
421 * have to put "Front" prefix to each label.  In such a case, returns false.
422 */
423static int check_mic_location_need(struct hda_codec *codec,
424				   const struct auto_pin_cfg *cfg,
425				   int input)
426{
427	unsigned int defc;
428	int i, attr, attr2;
429
430	defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[input].pin);
431	attr = snd_hda_get_input_pin_attr(defc);
432	/* for internal or docking mics, we need locations */
433	if (attr <= INPUT_PIN_ATTR_NORMAL)
434		return 1;
435
436	attr = 0;
437	for (i = 0; i < cfg->num_inputs; i++) {
438		defc = snd_hda_codec_get_pincfg(codec, cfg->inputs[i].pin);
439		attr2 = snd_hda_get_input_pin_attr(defc);
440		if (attr2 >= INPUT_PIN_ATTR_NORMAL) {
441			if (attr && attr != attr2)
442				return 1; /* different locations found */
443			attr = attr2;
444		}
445	}
446	return 0;
447}
448
449/**
450 * hda_get_autocfg_input_label - Get a label for the given input
451 *
452 * Get a label for the given input pin defined by the autocfg item.
453 * Unlike hda_get_input_pin_label(), this function checks all inputs
454 * defined in autocfg and avoids the redundant mic/line prefix as much as
455 * possible.
456 */
457const char *hda_get_autocfg_input_label(struct hda_codec *codec,
458					const struct auto_pin_cfg *cfg,
459					int input)
460{
461	int type = cfg->inputs[input].type;
462	int has_multiple_pins = 0;
463
464	if ((input > 0 && cfg->inputs[input - 1].type == type) ||
465	    (input < cfg->num_inputs - 1 && cfg->inputs[input + 1].type == type))
466		has_multiple_pins = 1;
467	if (has_multiple_pins && type == AUTO_PIN_MIC)
468		has_multiple_pins &= check_mic_location_need(codec, cfg, input);
469	return hda_get_input_pin_label(codec, cfg->inputs[input].pin,
470				       has_multiple_pins);
471}
472EXPORT_SYMBOL_HDA(hda_get_autocfg_input_label);
473
474/* return the position of NID in the list, or -1 if not found */
475static int find_idx_in_nid_list(hda_nid_t nid, const hda_nid_t *list, int nums)
476{
477	int i;
478	for (i = 0; i < nums; i++)
479		if (list[i] == nid)
480			return i;
481	return -1;
482}
483
484/* get a unique suffix or an index number */
485static const char *check_output_sfx(hda_nid_t nid, const hda_nid_t *pins,
486				    int num_pins, int *indexp)
487{
488	static const char * const channel_sfx[] = {
489		" Front", " Surround", " CLFE", " Side"
490	};
491	int i;
492
493	i = find_idx_in_nid_list(nid, pins, num_pins);
494	if (i < 0)
495		return NULL;
496	if (num_pins == 1)
497		return "";
498	if (num_pins > ARRAY_SIZE(channel_sfx)) {
499		if (indexp)
500			*indexp = i;
501		return "";
502	}
503	return channel_sfx[i];
504}
505
506static int fill_audio_out_name(struct hda_codec *codec, hda_nid_t nid,
507			       const struct auto_pin_cfg *cfg,
508			       const char *name, char *label, int maxlen,
509			       int *indexp)
510{
511	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
512	int attr = snd_hda_get_input_pin_attr(def_conf);
513	const char *pfx = "", *sfx = "";
514
515	/* handle as a speaker if it's a fixed line-out */
516	if (!strcmp(name, "Line Out") && attr == INPUT_PIN_ATTR_INT)
517		name = "Speaker";
518	/* check the location */
519	switch (attr) {
520	case INPUT_PIN_ATTR_DOCK:
521		pfx = "Dock ";
522		break;
523	case INPUT_PIN_ATTR_FRONT:
524		pfx = "Front ";
525		break;
526	}
527	if (cfg) {
528		/* try to give a unique suffix if needed */
529		sfx = check_output_sfx(nid, cfg->line_out_pins, cfg->line_outs,
530				       indexp);
531		if (!sfx)
532			sfx = check_output_sfx(nid, cfg->speaker_pins, cfg->speaker_outs,
533					       indexp);
534		if (!sfx) {
535			/* don't add channel suffix for Headphone controls */
536			int idx = find_idx_in_nid_list(nid, cfg->hp_pins,
537						       cfg->hp_outs);
538			if (idx >= 0)
539				*indexp = idx;
540			sfx = "";
541		}
542	}
543	snprintf(label, maxlen, "%s%s%s", pfx, name, sfx);
544	return 1;
545}
546
547/**
548 * snd_hda_get_pin_label - Get a label for the given I/O pin
549 *
550 * Get a label for the given pin.  This function works for both input and
551 * output pins.  When @cfg is given as non-NULL, the function tries to get
552 * an optimized label using hda_get_autocfg_input_label().
553 *
554 * This function tries to give a unique label string for the pin as much as
555 * possible.  For example, when the multiple line-outs are present, it adds
556 * the channel suffix like "Front", "Surround", etc (only when @cfg is given).
557 * If no unique name with a suffix is available and @indexp is non-NULL, the
558 * index number is stored in the pointer.
559 */
560int snd_hda_get_pin_label(struct hda_codec *codec, hda_nid_t nid,
561			  const struct auto_pin_cfg *cfg,
562			  char *label, int maxlen, int *indexp)
563{
564	unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
565	const char *name = NULL;
566	int i;
567
568	if (indexp)
569		*indexp = 0;
570	if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
571		return 0;
572
573	switch (get_defcfg_device(def_conf)) {
574	case AC_JACK_LINE_OUT:
575		return fill_audio_out_name(codec, nid, cfg, "Line Out",
576					   label, maxlen, indexp);
577	case AC_JACK_SPEAKER:
578		return fill_audio_out_name(codec, nid, cfg, "Speaker",
579					   label, maxlen, indexp);
580	case AC_JACK_HP_OUT:
581		return fill_audio_out_name(codec, nid, cfg, "Headphone",
582					   label, maxlen, indexp);
583	case AC_JACK_SPDIF_OUT:
584	case AC_JACK_DIG_OTHER_OUT:
585		if (get_defcfg_location(def_conf) == AC_JACK_LOC_HDMI)
586			name = "HDMI";
587		else
588			name = "SPDIF";
589		if (cfg && indexp) {
590			i = find_idx_in_nid_list(nid, cfg->dig_out_pins,
591						 cfg->dig_outs);
592			if (i >= 0)
593				*indexp = i;
594		}
595		break;
596	default:
597		if (cfg) {
598			for (i = 0; i < cfg->num_inputs; i++) {
599				if (cfg->inputs[i].pin != nid)
600					continue;
601				name = hda_get_autocfg_input_label(codec, cfg, i);
602				if (name)
603					break;
604			}
605		}
606		if (!name)
607			name = hda_get_input_pin_label(codec, nid, true);
608		break;
609	}
610	if (!name)
611		return 0;
612	strlcpy(label, name, maxlen);
613	return 1;
614}
615EXPORT_SYMBOL_HDA(snd_hda_get_pin_label);
616
617int snd_hda_gen_add_verbs(struct hda_gen_spec *spec,
618			  const struct hda_verb *list)
619{
620	const struct hda_verb **v;
621	v = snd_array_new(&spec->verbs);
622	if (!v)
623		return -ENOMEM;
624	*v = list;
625	return 0;
626}
627EXPORT_SYMBOL_HDA(snd_hda_gen_add_verbs);
628
629void snd_hda_gen_apply_verbs(struct hda_codec *codec)
630{
631	struct hda_gen_spec *spec = codec->spec;
632	int i;
633	for (i = 0; i < spec->verbs.used; i++) {
634		struct hda_verb **v = snd_array_elem(&spec->verbs, i);
635		snd_hda_sequence_write(codec, *v);
636	}
637}
638EXPORT_SYMBOL_HDA(snd_hda_gen_apply_verbs);
639
640void snd_hda_apply_pincfgs(struct hda_codec *codec,
641			   const struct hda_pintbl *cfg)
642{
643	for (; cfg->nid; cfg++)
644		snd_hda_codec_set_pincfg(codec, cfg->nid, cfg->val);
645}
646EXPORT_SYMBOL_HDA(snd_hda_apply_pincfgs);
647
648void snd_hda_apply_fixup(struct hda_codec *codec, int action)
649{
650	struct hda_gen_spec *spec = codec->spec;
651	int id = spec->fixup_id;
652#ifdef CONFIG_SND_DEBUG_VERBOSE
653	const char *modelname = spec->fixup_name;
654#endif
655	int depth = 0;
656
657	if (!spec->fixup_list)
658		return;
659
660	while (id >= 0) {
661		const struct hda_fixup *fix = spec->fixup_list + id;
662
663		switch (fix->type) {
664		case HDA_FIXUP_PINS:
665			if (action != HDA_FIXUP_ACT_PRE_PROBE || !fix->v.pins)
666				break;
667			snd_printdd(KERN_INFO SFX
668				    "%s: Apply pincfg for %s\n",
669				    codec->chip_name, modelname);
670			snd_hda_apply_pincfgs(codec, fix->v.pins);
671			break;
672		case HDA_FIXUP_VERBS:
673			if (action != HDA_FIXUP_ACT_PROBE || !fix->v.verbs)
674				break;
675			snd_printdd(KERN_INFO SFX
676				    "%s: Apply fix-verbs for %s\n",
677				    codec->chip_name, modelname);
678			snd_hda_gen_add_verbs(codec->spec, fix->v.verbs);
679			break;
680		case HDA_FIXUP_FUNC:
681			if (!fix->v.func)
682				break;
683			snd_printdd(KERN_INFO SFX
684				    "%s: Apply fix-func for %s\n",
685				    codec->chip_name, modelname);
686			fix->v.func(codec, fix, action);
687			break;
688		default:
689			snd_printk(KERN_ERR SFX
690				   "%s: Invalid fixup type %d\n",
691				   codec->chip_name, fix->type);
692			break;
693		}
694		if (!fix->chained)
695			break;
696		if (++depth > 10)
697			break;
698		id = fix->chain_id;
699	}
700}
701EXPORT_SYMBOL_HDA(snd_hda_apply_fixup);
702
703void snd_hda_pick_fixup(struct hda_codec *codec,
704			const struct hda_model_fixup *models,
705			const struct snd_pci_quirk *quirk,
706			const struct hda_fixup *fixlist)
707{
708	struct hda_gen_spec *spec = codec->spec;
709	const struct snd_pci_quirk *q;
710	int id = -1;
711	const char *name = NULL;
712
713	/* when model=nofixup is given, don't pick up any fixups */
714	if (codec->modelname && !strcmp(codec->modelname, "nofixup")) {
715		spec->fixup_list = NULL;
716		spec->fixup_id = -1;
717		return;
718	}
719
720	if (codec->modelname && models) {
721		while (models->name) {
722			if (!strcmp(codec->modelname, models->name)) {
723				id = models->id;
724				name = models->name;
725				break;
726			}
727			models++;
728		}
729	}
730	if (id < 0) {
731		q = snd_pci_quirk_lookup(codec->bus->pci, quirk);
732		if (q) {
733			id = q->value;
734#ifdef CONFIG_SND_DEBUG_VERBOSE
735			name = q->name;
736#endif
737		}
738	}
739	if (id < 0) {
740		for (q = quirk; q->subvendor; q++) {
741			unsigned int vendorid =
742				q->subdevice | (q->subvendor << 16);
743			if (vendorid == codec->subsystem_id) {
744				id = q->value;
745#ifdef CONFIG_SND_DEBUG_VERBOSE
746				name = q->name;
747#endif
748				break;
749			}
750		}
751	}
752
753	spec->fixup_id = id;
754	if (id >= 0) {
755		spec->fixup_list = fixlist;
756		spec->fixup_name = name;
757	}
758}
759EXPORT_SYMBOL_HDA(snd_hda_pick_fixup);