summaryrefslogtreecommitdiff
path: root/sound/pci/hda/hda_codec.h
blob: bbc5a1392c7522ce1cd961064d972a4e60c49561 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
/*
 * Universal Interface for Intel High Definition Audio Codec
 *
 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License as published by the Free
 *  Software Foundation; either version 2 of the License, or (at your option)
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 *  more details.
 *
 *  You should have received a copy of the GNU General Public License along with
 *  this program; if not, write to the Free Software Foundation, Inc., 59
 *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifndef __SOUND_HDA_CODEC_H
#define __SOUND_HDA_CODEC_H

#include <sound/info.h>
#include <sound/control.h>
#include <sound/pcm.h>
#include <sound/hwdep.h>
#include <sound/hda_verbs.h>

/*
 * generic arrays
 */
struct snd_array {
	unsigned int used;
	unsigned int alloced;
	unsigned int elem_size;
	unsigned int alloc_align;
	void *list;
};

void *snd_array_new(struct snd_array *array);
void snd_array_free(struct snd_array *array);
static inline void snd_array_init(struct snd_array *array, unsigned int size,
				  unsigned int align)
{
	array->elem_size = size;
	array->alloc_align = align;
}

static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
{
	return array->list + idx * array->elem_size;
}

static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
{
	return (unsigned long)(ptr - array->list) / array->elem_size;
}

/*
 * Structures
 */

struct hda_bus;
struct hda_beep;
struct hda_codec;
struct hda_pcm;
struct hda_pcm_stream;
struct hda_bus_unsolicited;

/* NID type */
typedef u16 hda_nid_t;

/* bus operators */
struct hda_bus_ops {
	/* send a single command */
	int (*command)(struct hda_bus *bus, unsigned int cmd);
	/* get a response from the last command */
	unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
	/* free the private data */
	void (*private_free)(struct hda_bus *);
	/* attach a PCM stream */
	int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
			  struct hda_pcm *pcm);
	/* reset bus for retry verb */
	void (*bus_reset)(struct hda_bus *bus);
#ifdef CONFIG_PM
	/* notify power-up/down from codec to controller */
	void (*pm_notify)(struct hda_bus *bus, bool power_up);
#endif
#ifdef CONFIG_SND_HDA_DSP_LOADER
	/* prepare DSP transfer */
	int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
				unsigned int byte_size,
				struct snd_dma_buffer *bufp);
	/* start/stop DSP transfer */
	void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
	/* clean up DSP transfer */
	void (*load_dsp_cleanup)(struct hda_bus *bus,
				 struct snd_dma_buffer *dmab);
#endif
};

/* template to pass to the bus constructor */
struct hda_bus_template {
	void *private_data;
	struct pci_dev *pci;
	const char *modelname;
	int *power_save;
	struct hda_bus_ops ops;
};

/*
 * codec bus
 *
 * each controller needs to creata a hda_bus to assign the accessor.
 * A hda_bus contains several codecs in the list codec_list.
 */
struct hda_bus {
	struct snd_card *card;

	/* copied from template */
	void *private_data;
	struct pci_dev *pci;
	const char *modelname;
	int *power_save;
	struct hda_bus_ops ops;

	/* codec linked list */
	struct list_head codec_list;
	unsigned int num_codecs;
	/* link caddr -> codec */
	struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];

	struct mutex cmd_mutex;
	struct mutex prepare_mutex;

	/* unsolicited event queue */
	struct hda_bus_unsolicited *unsol;
	char workq_name[16];
	struct workqueue_struct *workq;	/* common workqueue for codecs */

	/* assigned PCMs */
	DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);

	/* misc op flags */
	unsigned int needs_damn_long_delay :1;
	unsigned int allow_bus_reset:1;	/* allow bus reset at fatal error */
	unsigned int sync_write:1;	/* sync after verb write */
	/* status for codec/controller */
	unsigned int shutdown :1;	/* being unloaded */
	unsigned int rirb_error:1;	/* error in codec communication */
	unsigned int response_reset:1;	/* controller was reset */
	unsigned int in_reset:1;	/* during reset operation */
	unsigned int power_keep_link_on:1; /* don't power off HDA link */
	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */

	int primary_dig_out_type;	/* primary digital out PCM type */
};

/*
 * codec preset
 *
 * Known codecs have the patch to build and set up the controls/PCMs
 * better than the generic parser.
 */
struct hda_codec_preset {
	unsigned int id;
	unsigned int mask;
	unsigned int subs;
	unsigned int subs_mask;
	unsigned int rev;
	hda_nid_t afg, mfg;
	const char *name;
	int (*patch)(struct hda_codec *codec);
};
	
struct hda_codec_preset_list {
	const struct hda_codec_preset *preset;
	struct module *owner;
	struct list_head list;
};

/* initial hook */
int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);

/* ops set by the preset patch */
struct hda_codec_ops {
	int (*build_controls)(struct hda_codec *codec);
	int (*build_pcms)(struct hda_codec *codec);
	int (*init)(struct hda_codec *codec);
	void (*free)(struct hda_codec *codec);
	void (*unsol_event)(struct hda_codec *codec, unsigned int res);
	void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
				unsigned int power_state);
#ifdef CONFIG_PM
	int (*suspend)(struct hda_codec *codec);
	int (*resume)(struct hda_codec *codec);
	int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
#endif
	void (*reboot_notify)(struct hda_codec *codec);
};

/* record for amp information cache */
struct hda_cache_head {
	u32 key:31;		/* hash key */
	u32 dirty:1;
	u16 val;		/* assigned value */
	u16 next;
};

struct hda_amp_info {
	struct hda_cache_head head;
	u32 amp_caps;		/* amp capabilities */
	u16 vol[2];		/* current volume & mute */
};

struct hda_cache_rec {
	u16 hash[64];			/* hash table for index */
	struct snd_array buf;		/* record entries */
};

/* PCM callbacks */
struct hda_pcm_ops {
	int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
		    struct snd_pcm_substream *substream);
	int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
		     struct snd_pcm_substream *substream);
	int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
		       unsigned int stream_tag, unsigned int format,
		       struct snd_pcm_substream *substream);
	int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
		       struct snd_pcm_substream *substream);
	unsigned int (*get_delay)(struct hda_pcm_stream *info,
				  struct hda_codec *codec,
				  struct snd_pcm_substream *substream);
};

/* PCM information for each substream */
struct hda_pcm_stream {
	unsigned int substreams;	/* number of substreams, 0 = not exist*/
	unsigned int channels_min;	/* min. number of channels */
	unsigned int channels_max;	/* max. number of channels */
	hda_nid_t nid;	/* default NID to query rates/formats/bps, or set up */
	u32 rates;	/* supported rates */
	u64 formats;	/* supported formats (SNDRV_PCM_FMTBIT_) */
	unsigned int maxbps;	/* supported max. bit per sample */
	const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
	struct hda_pcm_ops ops;
};

/* PCM types */
enum {
	HDA_PCM_TYPE_AUDIO,
	HDA_PCM_TYPE_SPDIF,
	HDA_PCM_TYPE_HDMI,
	HDA_PCM_TYPE_MODEM,
	HDA_PCM_NTYPES
};

/* for PCM creation */
struct hda_pcm {
	char *name;
	struct hda_pcm_stream stream[2];
	unsigned int pcm_type;	/* HDA_PCM_TYPE_XXX */
	int device;		/* device number to assign */
	struct snd_pcm *pcm;	/* assigned PCM instance */
	bool own_chmap;		/* codec driver provides own channel maps */
};

/* codec information */
struct hda_codec {
	struct device dev;
	struct hda_bus *bus;
	unsigned int addr;	/* codec addr*/
	struct list_head list;	/* list point */

	hda_nid_t afg;	/* AFG node id */
	hda_nid_t mfg;	/* MFG node id */

	/* ids */
	u8 afg_function_id;
	u8 mfg_function_id;
	u8 afg_unsol;
	u8 mfg_unsol;
	u32 vendor_id;
	u32 subsystem_id;
	u32 revision_id;

	/* detected preset */
	const struct hda_codec_preset *preset;
	struct module *owner;
	int (*parser)(struct hda_codec *codec);
	const char *vendor_name;	/* codec vendor name */
	const char *chip_name;		/* codec chip name */
	const char *modelname;	/* model name for preset */

	/* set by patch */
	struct hda_codec_ops patch_ops;

	/* PCM to create, set by patch_ops.build_pcms callback */
	unsigned int num_pcms;
	struct hda_pcm *pcm_info;

	/* codec specific info */
	void *spec;

	/* beep device */
	struct hda_beep *beep;
	unsigned int beep_mode;

	/* widget capabilities cache */
	unsigned int num_nodes;
	hda_nid_t start_nid;
	u32 *wcaps;

	struct snd_array mixers;	/* list of assigned mixer elements */
	struct snd_array nids;		/* list of mapped mixer elements */

	struct hda_cache_rec amp_cache;	/* cache for amp access */
	struct hda_cache_rec cmd_cache;	/* cache for other commands */

	struct list_head conn_list;	/* linked-list of connection-list */

	struct mutex spdif_mutex;
	struct mutex control_mutex;
	struct mutex hash_mutex;
	struct snd_array spdif_out;
	unsigned int spdif_in_enable;	/* SPDIF input enable? */
	const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
	struct snd_array init_pins;	/* initial (BIOS) pin configurations */
	struct snd_array driver_pins;	/* pin configs set by codec parser */
	struct snd_array cvt_setups;	/* audio convert setups */

	struct mutex user_mutex;
#ifdef CONFIG_SND_HDA_RECONFIG
	struct snd_array init_verbs;	/* additional init verbs */
	struct snd_array hints;		/* additional hints */
	struct snd_array user_pins;	/* default pin configs to override */
#endif

#ifdef CONFIG_SND_HDA_HWDEP
	struct snd_hwdep *hwdep;	/* assigned hwdep device */
#endif

	/* misc flags */
	unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
					     * status change
					     * (e.g. Realtek codecs)
					     */
	unsigned int pin_amp_workaround:1; /* pin out-amp takes index
					    * (e.g. Conexant codecs)
					    */
	unsigned int single_adc_amp:1; /* adc in-amp takes no index
					* (e.g. CX20549 codec)
					*/
	unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
	unsigned int pins_shutup:1;	/* pins are shut up */
	unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
	unsigned int no_jack_detect:1;	/* Machine has no jack-detection */
	unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
	unsigned int inv_jack_detect:1;	/* broken h/w: inverted detection bit */
	unsigned int pcm_format_first:1; /* PCM format must be set first */
	unsigned int epss:1;		/* supporting EPSS? */
	unsigned int cached_write:1;	/* write only to caches */
	unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
	unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
#ifdef CONFIG_PM
	unsigned int power_on :1;	/* current (global) power-state */
	unsigned int d3_stop_clk:1;	/* support D3 operation without BCLK */
	unsigned int pm_up_notified:1;	/* PM notified to controller */
	unsigned int in_pm:1;		/* suspend/resume being performed */
	int power_transition;	/* power-state in transition */
	int power_count;	/* current (global) power refcount */
	struct delayed_work power_work; /* delayed task for powerdown */
	unsigned long power_on_acct;
	unsigned long power_off_acct;
	unsigned long power_jiffies;
	spinlock_t power_lock;
#endif

	/* filter the requested power state per nid */
	unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
				     unsigned int power_state);

	/* codec-specific additional proc output */
	void (*proc_widget_hook)(struct snd_info_buffer *buffer,
				 struct hda_codec *codec, hda_nid_t nid);

	/* jack detection */
	struct snd_array jacktbl;
	unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
	struct delayed_work jackpoll_work;

#ifdef CONFIG_SND_HDA_INPUT_JACK
	/* jack detection */
	struct snd_array jacks;
#endif

	int depop_delay; /* depop delay in ms, -1 for default delay time */

	/* fix-up list */
	int fixup_id;
	const struct hda_fixup *fixup_list;
	const char *fixup_name;

	/* additional init verbs */
	struct snd_array verbs;
};

/* direction */
enum {
	HDA_INPUT, HDA_OUTPUT
};

/* snd_hda_codec_read/write optional flags */
#define HDA_RW_NO_RESPONSE_FALLBACK	(1 << 0)

/*
 * constructors
 */
int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
		    struct hda_bus **busp);
int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
		      struct hda_codec **codecp);
int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);

/*
 * low level functions
 */
unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
				int flags,
				unsigned int verb, unsigned int parm);
int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
			unsigned int verb, unsigned int parm);
#define snd_hda_param_read(codec, nid, param) \
	snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
			  hda_nid_t *start_id);
int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
			    hda_nid_t *conn_list, int max_conns);
static inline int
snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
{
	return snd_hda_get_connections(codec, nid, NULL, 0);
}
int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
			    hda_nid_t *conn_list, int max_conns);
int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
			  const hda_nid_t **listp);
int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
			  const hda_nid_t *list);
int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
			   hda_nid_t nid, int recursive);
int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
			u8 *dev_list, int max_devices);
int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
				u32 *ratesp, u64 *formatsp, unsigned int *bpsp);

struct hda_verb {
	hda_nid_t nid;
	u32 verb;
	u32 param;
};

void snd_hda_sequence_write(struct hda_codec *codec,
			    const struct hda_verb *seq);

/* unsolicited event */
int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);

/* cached write */
int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
			      int flags, unsigned int verb, unsigned int parm);
void snd_hda_sequence_write_cache(struct hda_codec *codec,
				  const struct hda_verb *seq);
int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
			      int flags, unsigned int verb, unsigned int parm);
void snd_hda_codec_resume_cache(struct hda_codec *codec);
/* both for cmd & amp caches */
void snd_hda_codec_flush_cache(struct hda_codec *codec);

/* the struct for codec->pin_configs */
struct hda_pincfg {
	hda_nid_t nid;
	unsigned char ctrl;	/* original pin control value */
	unsigned char target;	/* target pin control value */
	unsigned int cfg;	/* default configuration */
};

unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
			     unsigned int cfg);
int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
		       hda_nid_t nid, unsigned int cfg); /* for hwdep */
void snd_hda_shutup_pins(struct hda_codec *codec);

/* SPDIF controls */
struct hda_spdif_out {
	hda_nid_t nid;		/* Converter nid values relate to */
	unsigned int status;	/* IEC958 status bits */
	unsigned short ctls;	/* SPDIF control bits */
};
struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
					       hda_nid_t nid);
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);

/*
 * Mixer
 */
int snd_hda_build_controls(struct hda_bus *bus);
int snd_hda_codec_build_controls(struct hda_codec *codec);

/*
 * PCM
 */
int snd_hda_build_pcms(struct hda_bus *bus);
int snd_hda_codec_build_pcms(struct hda_codec *codec);

int snd_hda_codec_prepare(struct hda_codec *codec,
			  struct hda_pcm_stream *hinfo,
			  unsigned int stream,
			  unsigned int format,
			  struct snd_pcm_substream *substream);
void snd_hda_codec_cleanup(struct hda_codec *codec,
			   struct hda_pcm_stream *hinfo,
			   struct snd_pcm_substream *substream);

void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
				u32 stream_tag,
				int channel_id, int format);
void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
				    int do_now);
#define snd_hda_codec_cleanup_stream(codec, nid) \
	__snd_hda_codec_cleanup_stream(codec, nid, 0)
unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
					unsigned int rate,
					unsigned int channels,
					unsigned int format,
					unsigned int maxbps,
					unsigned short spdif_ctls);
int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
				unsigned int format);

extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];

/*
 * Misc
 */
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
void snd_hda_bus_reboot_notify(struct hda_bus *bus);
void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
				    unsigned int power_state);

int snd_hda_lock_devices(struct hda_bus *bus);
void snd_hda_unlock_devices(struct hda_bus *bus);

/*
 * power management
 */
#ifdef CONFIG_PM
int snd_hda_suspend(struct hda_bus *bus);
int snd_hda_resume(struct hda_bus *bus);
#endif

static inline
int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
{
#ifdef CONFIG_PM
	if (codec->patch_ops.check_power_status)
		return codec->patch_ops.check_power_status(codec, nid);
#endif
	return 0;
}

/*
 * get widget information
 */
const char *snd_hda_get_jack_connectivity(u32 cfg);
const char *snd_hda_get_jack_type(u32 cfg);
const char *snd_hda_get_jack_location(u32 cfg);

/*
 * power saving
 */
#ifdef CONFIG_PM
void snd_hda_power_save(struct hda_codec *codec, int delta, bool d3wait);
void snd_hda_update_power_acct(struct hda_codec *codec);
#else
static inline void snd_hda_power_save(struct hda_codec *codec, int delta,
				      bool d3wait) {}
#endif

/**
 * snd_hda_power_up - Power-up the codec
 * @codec: HD-audio codec
 *
 * Increment the power-up counter and power up the hardware really when
 * not turned on yet.
 */
static inline void snd_hda_power_up(struct hda_codec *codec)
{
	snd_hda_power_save(codec, 1, false);
}

/**
 * snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending
 *   D3 transition to complete.  This differs from snd_hda_power_up() when
 *   power_transition == -1.  snd_hda_power_up sees this case as a nop,
 *   snd_hda_power_up_d3wait waits for the D3 transition to complete then powers
 *   back up.
 * @codec: HD-audio codec
 *
 * Cancel any power down operation hapenning on the work queue, then power up.
 */
static inline void snd_hda_power_up_d3wait(struct hda_codec *codec)
{
	snd_hda_power_save(codec, 1, true);
}

/**
 * snd_hda_power_down - Power-down the codec
 * @codec: HD-audio codec
 *
 * Decrement the power-up counter and schedules the power-off work if
 * the counter rearches to zero.
 */
static inline void snd_hda_power_down(struct hda_codec *codec)
{
	snd_hda_power_save(codec, -1, false);
}

/**
 * snd_hda_power_sync - Synchronize the power-save status
 * @codec: HD-audio codec
 *
 * Synchronize the actual power state with the power account;
 * called when power_save parameter is changed
 */
static inline void snd_hda_power_sync(struct hda_codec *codec)
{
	snd_hda_power_save(codec, 0, false);
}

#ifdef CONFIG_SND_HDA_PATCH_LOADER
/*
 * patch firmware
 */
int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
#endif

#ifdef CONFIG_SND_HDA_DSP_LOADER
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
				unsigned int size,
				struct snd_dma_buffer *bufp)
{
	return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
{
	return codec->bus->ops.load_dsp_trigger(codec->bus, start);
}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
				struct snd_dma_buffer *dmab)
{
	return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
}
#else
static inline int
snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
				unsigned int size,
				struct snd_dma_buffer *bufp)
{
	return -ENOSYS;
}
static inline void
snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
static inline void
snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
				struct snd_dma_buffer *dmab) {}
#endif

#define EXPORT_SYMBOL_HDA(sym) EXPORT_SYMBOL_GPL(sym)

#endif /* __SOUND_HDA_CODEC_H */