2 * Universal Interface for Intel High Definition Audio Codec
4 * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
11 * This program is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 * You should have received a copy of the GNU General Public License along with
17 * this program; if not, write to the Free Software Foundation, Inc., 59
18 * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 #ifndef __SOUND_HDA_CODEC_H
22 #define __SOUND_HDA_CODEC_H
24 #include <sound/info.h>
25 #include <sound/control.h>
26 #include <sound/pcm.h>
27 #include <sound/hwdep.h>
29 #if defined(CONFIG_PM) || defined(CONFIG_SND_HDA_POWER_SAVE)
30 #define SND_HDA_NEEDS_RESUME /* resume control code is required */
36 #define AC_NODE_ROOT 0x00
39 * function group types
42 AC_GRP_AUDIO_FUNCTION = 0x01,
43 AC_GRP_MODEM_FUNCTION = 0x02,
50 AC_WID_AUD_OUT, /* Audio Out */
51 AC_WID_AUD_IN, /* Audio In */
52 AC_WID_AUD_MIX, /* Audio Mixer */
53 AC_WID_AUD_SEL, /* Audio Selector */
54 AC_WID_PIN, /* Pin Complex */
55 AC_WID_POWER, /* Power */
56 AC_WID_VOL_KNB, /* Volume Knob */
57 AC_WID_BEEP, /* Beep Generator */
58 AC_WID_VENDOR = 0x0f /* Vendor specific */
64 #define AC_VERB_GET_STREAM_FORMAT 0x0a00
65 #define AC_VERB_GET_AMP_GAIN_MUTE 0x0b00
66 #define AC_VERB_GET_PROC_COEF 0x0c00
67 #define AC_VERB_GET_COEF_INDEX 0x0d00
68 #define AC_VERB_PARAMETERS 0x0f00
69 #define AC_VERB_GET_CONNECT_SEL 0x0f01
70 #define AC_VERB_GET_CONNECT_LIST 0x0f02
71 #define AC_VERB_GET_PROC_STATE 0x0f03
72 #define AC_VERB_GET_SDI_SELECT 0x0f04
73 #define AC_VERB_GET_POWER_STATE 0x0f05
74 #define AC_VERB_GET_CONV 0x0f06
75 #define AC_VERB_GET_PIN_WIDGET_CONTROL 0x0f07
76 #define AC_VERB_GET_UNSOLICITED_RESPONSE 0x0f08
77 #define AC_VERB_GET_PIN_SENSE 0x0f09
78 #define AC_VERB_GET_BEEP_CONTROL 0x0f0a
79 #define AC_VERB_GET_EAPD_BTLENABLE 0x0f0c
80 #define AC_VERB_GET_DIGI_CONVERT_1 0x0f0d
81 #define AC_VERB_GET_DIGI_CONVERT_2 0x0f0e /* unused */
82 #define AC_VERB_GET_VOLUME_KNOB_CONTROL 0x0f0f
84 #define AC_VERB_GET_GPIO_DATA 0x0f15
85 #define AC_VERB_GET_GPIO_MASK 0x0f16
86 #define AC_VERB_GET_GPIO_DIRECTION 0x0f17
87 #define AC_VERB_GET_GPIO_WAKE_MASK 0x0f18
88 #define AC_VERB_GET_GPIO_UNSOLICITED_RSP_MASK 0x0f19
89 #define AC_VERB_GET_GPIO_STICKY_MASK 0x0f1a
90 #define AC_VERB_GET_CONFIG_DEFAULT 0x0f1c
92 #define AC_VERB_GET_SUBSYSTEM_ID 0x0f20
97 #define AC_VERB_SET_STREAM_FORMAT 0x200
98 #define AC_VERB_SET_AMP_GAIN_MUTE 0x300
99 #define AC_VERB_SET_PROC_COEF 0x400
100 #define AC_VERB_SET_COEF_INDEX 0x500
101 #define AC_VERB_SET_CONNECT_SEL 0x701
102 #define AC_VERB_SET_PROC_STATE 0x703
103 #define AC_VERB_SET_SDI_SELECT 0x704
104 #define AC_VERB_SET_POWER_STATE 0x705
105 #define AC_VERB_SET_CHANNEL_STREAMID 0x706
106 #define AC_VERB_SET_PIN_WIDGET_CONTROL 0x707
107 #define AC_VERB_SET_UNSOLICITED_ENABLE 0x708
108 #define AC_VERB_SET_PIN_SENSE 0x709
109 #define AC_VERB_SET_BEEP_CONTROL 0x70a
110 #define AC_VERB_SET_EAPD_BTLENABLE 0x70c
111 #define AC_VERB_SET_DIGI_CONVERT_1 0x70d
112 #define AC_VERB_SET_DIGI_CONVERT_2 0x70e
113 #define AC_VERB_SET_VOLUME_KNOB_CONTROL 0x70f
114 #define AC_VERB_SET_GPIO_DATA 0x715
115 #define AC_VERB_SET_GPIO_MASK 0x716
116 #define AC_VERB_SET_GPIO_DIRECTION 0x717
117 #define AC_VERB_SET_GPIO_WAKE_MASK 0x718
118 #define AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK 0x719
119 #define AC_VERB_SET_GPIO_STICKY_MASK 0x71a
120 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_0 0x71c
121 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_1 0x71d
122 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_2 0x71e
123 #define AC_VERB_SET_CONFIG_DEFAULT_BYTES_3 0x71f
124 #define AC_VERB_SET_CODEC_RESET 0x7ff
129 #define AC_PAR_VENDOR_ID 0x00
130 #define AC_PAR_SUBSYSTEM_ID 0x01
131 #define AC_PAR_REV_ID 0x02
132 #define AC_PAR_NODE_COUNT 0x04
133 #define AC_PAR_FUNCTION_TYPE 0x05
134 #define AC_PAR_AUDIO_FG_CAP 0x08
135 #define AC_PAR_AUDIO_WIDGET_CAP 0x09
136 #define AC_PAR_PCM 0x0a
137 #define AC_PAR_STREAM 0x0b
138 #define AC_PAR_PIN_CAP 0x0c
139 #define AC_PAR_AMP_IN_CAP 0x0d
140 #define AC_PAR_CONNLIST_LEN 0x0e
141 #define AC_PAR_POWER_STATE 0x0f
142 #define AC_PAR_PROC_CAP 0x10
143 #define AC_PAR_GPIO_CAP 0x11
144 #define AC_PAR_AMP_OUT_CAP 0x12
145 #define AC_PAR_VOL_KNB_CAP 0x13
148 * AC_VERB_PARAMETERS results (32bit)
151 /* Function Group Type */
152 #define AC_FGT_TYPE (0xff<<0)
153 #define AC_FGT_TYPE_SHIFT 0
154 #define AC_FGT_UNSOL_CAP (1<<8)
156 /* Audio Function Group Capabilities */
157 #define AC_AFG_OUT_DELAY (0xf<<0)
158 #define AC_AFG_IN_DELAY (0xf<<8)
159 #define AC_AFG_BEEP_GEN (1<<16)
161 /* Audio Widget Capabilities */
162 #define AC_WCAP_STEREO (1<<0) /* stereo I/O */
163 #define AC_WCAP_IN_AMP (1<<1) /* AMP-in present */
164 #define AC_WCAP_OUT_AMP (1<<2) /* AMP-out present */
165 #define AC_WCAP_AMP_OVRD (1<<3) /* AMP-parameter override */
166 #define AC_WCAP_FORMAT_OVRD (1<<4) /* format override */
167 #define AC_WCAP_STRIPE (1<<5) /* stripe */
168 #define AC_WCAP_PROC_WID (1<<6) /* Proc Widget */
169 #define AC_WCAP_UNSOL_CAP (1<<7) /* Unsol capable */
170 #define AC_WCAP_CONN_LIST (1<<8) /* connection list */
171 #define AC_WCAP_DIGITAL (1<<9) /* digital I/O */
172 #define AC_WCAP_POWER (1<<10) /* power control */
173 #define AC_WCAP_LR_SWAP (1<<11) /* L/R swap */
174 #define AC_WCAP_DELAY (0xf<<16)
175 #define AC_WCAP_DELAY_SHIFT 16
176 #define AC_WCAP_TYPE (0xf<<20)
177 #define AC_WCAP_TYPE_SHIFT 20
179 /* supported PCM rates and bits */
180 #define AC_SUPPCM_RATES (0xfff << 0)
181 #define AC_SUPPCM_BITS_8 (1<<16)
182 #define AC_SUPPCM_BITS_16 (1<<17)
183 #define AC_SUPPCM_BITS_20 (1<<18)
184 #define AC_SUPPCM_BITS_24 (1<<19)
185 #define AC_SUPPCM_BITS_32 (1<<20)
187 /* supported PCM stream format */
188 #define AC_SUPFMT_PCM (1<<0)
189 #define AC_SUPFMT_FLOAT32 (1<<1)
190 #define AC_SUPFMT_AC3 (1<<2)
193 #define AC_GPIO_IO_COUNT (0xff<<0)
194 #define AC_GPIO_O_COUNT (0xff<<8)
195 #define AC_GPIO_O_COUNT_SHIFT 8
196 #define AC_GPIO_I_COUNT (0xff<<16)
197 #define AC_GPIO_I_COUNT_SHIFT 16
198 #define AC_GPIO_UNSOLICITED (1<<30)
199 #define AC_GPIO_WAKE (1<<31)
201 /* Converter stream, channel */
202 #define AC_CONV_CHANNEL (0xf<<0)
203 #define AC_CONV_STREAM (0xf<<4)
204 #define AC_CONV_STREAM_SHIFT 4
206 /* Input converter SDI select */
207 #define AC_SDI_SELECT (0xf<<0)
209 /* Unsolicited response */
210 #define AC_UNSOL_TAG (0x3f<<0)
211 #define AC_UNSOL_ENABLED (1<<7)
213 /* Pin widget capabilies */
214 #define AC_PINCAP_IMP_SENSE (1<<0) /* impedance sense capable */
215 #define AC_PINCAP_TRIG_REQ (1<<1) /* trigger required */
216 #define AC_PINCAP_PRES_DETECT (1<<2) /* presence detect capable */
217 #define AC_PINCAP_HP_DRV (1<<3) /* headphone drive capable */
218 #define AC_PINCAP_OUT (1<<4) /* output capable */
219 #define AC_PINCAP_IN (1<<5) /* input capable */
220 #define AC_PINCAP_BALANCE (1<<6) /* balanced I/O capable */
221 /* Note: This LR_SWAP pincap is defined in the Realtek ALC883 specification,
222 * but is marked reserved in the Intel HDA specification.
224 #define AC_PINCAP_LR_SWAP (1<<7) /* L/R swap */
225 #define AC_PINCAP_VREF (0x37<<8)
226 #define AC_PINCAP_VREF_SHIFT 8
227 #define AC_PINCAP_EAPD (1<<16) /* EAPD capable */
228 /* Vref status (used in pin cap) */
229 #define AC_PINCAP_VREF_HIZ (1<<0) /* Hi-Z */
230 #define AC_PINCAP_VREF_50 (1<<1) /* 50% */
231 #define AC_PINCAP_VREF_GRD (1<<2) /* ground */
232 #define AC_PINCAP_VREF_80 (1<<4) /* 80% */
233 #define AC_PINCAP_VREF_100 (1<<5) /* 100% */
235 /* Amplifier capabilities */
236 #define AC_AMPCAP_OFFSET (0x7f<<0) /* 0dB offset */
237 #define AC_AMPCAP_OFFSET_SHIFT 0
238 #define AC_AMPCAP_NUM_STEPS (0x7f<<8) /* number of steps */
239 #define AC_AMPCAP_NUM_STEPS_SHIFT 8
240 #define AC_AMPCAP_STEP_SIZE (0x7f<<16) /* step size 0-32dB
243 #define AC_AMPCAP_STEP_SIZE_SHIFT 16
244 #define AC_AMPCAP_MUTE (1<<31) /* mute capable */
245 #define AC_AMPCAP_MUTE_SHIFT 31
247 /* Connection list */
248 #define AC_CLIST_LENGTH (0x7f<<0)
249 #define AC_CLIST_LONG (1<<7)
251 /* Supported power status */
252 #define AC_PWRST_D0SUP (1<<0)
253 #define AC_PWRST_D1SUP (1<<1)
254 #define AC_PWRST_D2SUP (1<<2)
255 #define AC_PWRST_D3SUP (1<<3)
257 /* Power state values */
258 #define AC_PWRST_SETTING (0xf<<0)
259 #define AC_PWRST_ACTUAL (0xf<<4)
260 #define AC_PWRST_ACTUAL_SHIFT 4
261 #define AC_PWRST_D0 0x00
262 #define AC_PWRST_D1 0x01
263 #define AC_PWRST_D2 0x02
264 #define AC_PWRST_D3 0x03
266 /* Processing capabilies */
267 #define AC_PCAP_BENIGN (1<<0)
268 #define AC_PCAP_NUM_COEF (0xff<<8)
269 #define AC_PCAP_NUM_COEF_SHIFT 8
271 /* Volume knobs capabilities */
272 #define AC_KNBCAP_NUM_STEPS (0x7f<<0)
273 #define AC_KNBCAP_DELTA (1<<7)
280 #define AC_AMP_MUTE (1<<7)
281 #define AC_AMP_GAIN (0x7f)
282 #define AC_AMP_GET_INDEX (0xf<<0)
284 #define AC_AMP_GET_LEFT (1<<13)
285 #define AC_AMP_GET_RIGHT (0<<13)
286 #define AC_AMP_GET_OUTPUT (1<<15)
287 #define AC_AMP_GET_INPUT (0<<15)
289 #define AC_AMP_SET_INDEX (0xf<<8)
290 #define AC_AMP_SET_INDEX_SHIFT 8
291 #define AC_AMP_SET_RIGHT (1<<12)
292 #define AC_AMP_SET_LEFT (1<<13)
293 #define AC_AMP_SET_INPUT (1<<14)
294 #define AC_AMP_SET_OUTPUT (1<<15)
297 #define AC_DIG1_ENABLE (1<<0)
298 #define AC_DIG1_V (1<<1)
299 #define AC_DIG1_VCFG (1<<2)
300 #define AC_DIG1_EMPHASIS (1<<3)
301 #define AC_DIG1_COPYRIGHT (1<<4)
302 #define AC_DIG1_NONAUDIO (1<<5)
303 #define AC_DIG1_PROFESSIONAL (1<<6)
304 #define AC_DIG1_LEVEL (1<<7)
307 #define AC_DIG2_CC (0x7f<<0)
309 /* Pin widget control - 8bit */
310 #define AC_PINCTL_VREFEN (0x7<<0)
311 #define AC_PINCTL_VREF_HIZ 0 /* Hi-Z */
312 #define AC_PINCTL_VREF_50 1 /* 50% */
313 #define AC_PINCTL_VREF_GRD 2 /* ground */
314 #define AC_PINCTL_VREF_80 4 /* 80% */
315 #define AC_PINCTL_VREF_100 5 /* 100% */
316 #define AC_PINCTL_IN_EN (1<<5)
317 #define AC_PINCTL_OUT_EN (1<<6)
318 #define AC_PINCTL_HP_EN (1<<7)
320 /* Unsolicited response - 8bit */
321 #define AC_USRSP_EN (1<<7)
323 /* Pin sense - 32bit */
324 #define AC_PINSENSE_IMPEDANCE_MASK (0x7fffffff)
325 #define AC_PINSENSE_PRESENCE (1<<31)
327 /* EAPD/BTL enable - 32bit */
328 #define AC_EAPDBTL_BALANCED (1<<0)
329 #define AC_EAPDBTL_EAPD (1<<1)
330 #define AC_EAPDBTL_LR_SWAP (1<<2)
332 /* configuration default - 32bit */
333 #define AC_DEFCFG_SEQUENCE (0xf<<0)
334 #define AC_DEFCFG_DEF_ASSOC (0xf<<4)
335 #define AC_DEFCFG_ASSOC_SHIFT 4
336 #define AC_DEFCFG_MISC (0xf<<8)
337 #define AC_DEFCFG_MISC_SHIFT 8
338 #define AC_DEFCFG_MISC_NO_PRESENCE (1<<0)
339 #define AC_DEFCFG_COLOR (0xf<<12)
340 #define AC_DEFCFG_COLOR_SHIFT 12
341 #define AC_DEFCFG_CONN_TYPE (0xf<<16)
342 #define AC_DEFCFG_CONN_TYPE_SHIFT 16
343 #define AC_DEFCFG_DEVICE (0xf<<20)
344 #define AC_DEFCFG_DEVICE_SHIFT 20
345 #define AC_DEFCFG_LOCATION (0x3f<<24)
346 #define AC_DEFCFG_LOCATION_SHIFT 24
347 #define AC_DEFCFG_PORT_CONN (0x3<<30)
348 #define AC_DEFCFG_PORT_CONN_SHIFT 30
350 /* device device types (0x0-0xf) */
357 AC_JACK_DIG_OTHER_OUT,
358 AC_JACK_MODEM_LINE_SIDE,
359 AC_JACK_MODEM_HAND_SIDE,
365 AC_JACK_DIG_OTHER_IN,
369 /* jack connection types (0x0-0xf) */
371 AC_JACK_CONN_UNKNOWN,
376 AC_JACK_CONN_OPTICAL,
377 AC_JACK_CONN_OTHER_DIGITAL,
378 AC_JACK_CONN_OTHER_ANALOG,
383 AC_JACK_CONN_OTHER = 0xf,
386 /* jack colors (0x0-0xf) */
388 AC_JACK_COLOR_UNKNOWN,
394 AC_JACK_COLOR_ORANGE,
395 AC_JACK_COLOR_YELLOW,
396 AC_JACK_COLOR_PURPLE,
398 AC_JACK_COLOR_WHITE = 0xe,
402 /* Jack location (0x0-0x3f) */
415 AC_JACK_LOC_EXTERNAL = 0x00,
416 AC_JACK_LOC_INTERNAL = 0x10,
417 AC_JACK_LOC_SEPARATE = 0x20,
418 AC_JACK_LOC_OTHER = 0x30,
421 /* external on primary chasis */
422 AC_JACK_LOC_REAR_PANEL = 0x07,
423 AC_JACK_LOC_DRIVE_BAY,
425 AC_JACK_LOC_RISER = 0x17,
429 AC_JACK_LOC_MOBILE_IN = 0x37,
430 AC_JACK_LOC_MOBILE_OUT,
433 /* Port connectivity (0-3) */
435 AC_JACK_PORT_COMPLEX,
441 /* max. connections to a widget */
442 #define HDA_MAX_CONNECTIONS 32
444 /* max. codec address */
445 #define HDA_MAX_CODEC_ADDRESS 0x0f
454 struct hda_pcm_stream;
455 struct hda_bus_unsolicited;
458 typedef u16 hda_nid_t;
462 /* send a single command */
463 int (*command)(struct hda_codec *codec, hda_nid_t nid, int direct,
464 unsigned int verb, unsigned int parm);
465 /* get a response from the last command */
466 unsigned int (*get_response)(struct hda_codec *codec);
467 /* free the private data */
468 void (*private_free)(struct hda_bus *);
469 #ifdef CONFIG_SND_HDA_POWER_SAVE
470 /* notify power-up/down from codec to controller */
471 void (*pm_notify)(struct hda_codec *codec);
475 /* template to pass to the bus constructor */
476 struct hda_bus_template {
479 const char *modelname;
480 struct hda_bus_ops ops;
486 * each controller needs to creata a hda_bus to assign the accessor.
487 * A hda_bus contains several codecs in the list codec_list.
490 struct snd_card *card;
492 /* copied from template */
495 const char *modelname;
496 struct hda_bus_ops ops;
498 /* codec linked list */
499 struct list_head codec_list;
500 /* link caddr -> codec */
501 struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
503 struct mutex cmd_mutex;
505 /* unsolicited event queue */
506 struct hda_bus_unsolicited *unsol;
508 struct snd_info_entry *proc;
511 unsigned int needs_damn_long_delay :1;
517 * Known codecs have the patch to build and set up the controls/PCMs
518 * better than the generic parser.
520 struct hda_codec_preset {
524 unsigned int subs_mask;
528 int (*patch)(struct hda_codec *codec);
531 /* ops set by the preset patch */
532 struct hda_codec_ops {
533 int (*build_controls)(struct hda_codec *codec);
534 int (*build_pcms)(struct hda_codec *codec);
535 int (*init)(struct hda_codec *codec);
536 void (*free)(struct hda_codec *codec);
537 void (*unsol_event)(struct hda_codec *codec, unsigned int res);
538 #ifdef SND_HDA_NEEDS_RESUME
539 int (*suspend)(struct hda_codec *codec, pm_message_t state);
540 int (*resume)(struct hda_codec *codec);
542 #ifdef CONFIG_SND_HDA_POWER_SAVE
543 int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
547 /* record for amp information cache */
548 struct hda_cache_head {
549 u32 key; /* hash key */
550 u16 val; /* assigned value */
551 u16 next; /* next link; -1 = terminal */
554 struct hda_amp_info {
555 struct hda_cache_head head;
556 u32 amp_caps; /* amp capabilities */
557 u16 vol[2]; /* current volume & mute */
560 struct hda_cache_rec {
561 u16 hash[64]; /* hash table for index */
562 unsigned int num_entries; /* number of assigned entries */
563 unsigned int size; /* allocated size */
564 unsigned int record_size; /* record size (including header) */
565 void *buffer; /* hash table entries */
570 int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
571 struct snd_pcm_substream *substream);
572 int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
573 struct snd_pcm_substream *substream);
574 int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
575 unsigned int stream_tag, unsigned int format,
576 struct snd_pcm_substream *substream);
577 int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
578 struct snd_pcm_substream *substream);
581 /* PCM information for each substream */
582 struct hda_pcm_stream {
583 unsigned int substreams; /* number of substreams, 0 = not exist*/
584 unsigned int channels_min; /* min. number of channels */
585 unsigned int channels_max; /* max. number of channels */
586 hda_nid_t nid; /* default NID to query rates/formats/bps, or set up */
587 u32 rates; /* supported rates */
588 u64 formats; /* supported formats (SNDRV_PCM_FMTBIT_) */
589 unsigned int maxbps; /* supported max. bit per sample */
590 struct hda_pcm_ops ops;
602 /* for PCM creation */
605 struct hda_pcm_stream stream[2];
606 unsigned int pcm_type; /* HDA_PCM_TYPE_XXX */
607 int device; /* assigned device number */
610 /* codec information */
613 unsigned int addr; /* codec addr*/
614 struct list_head list; /* list point */
616 hda_nid_t afg; /* AFG node id */
617 hda_nid_t mfg; /* MFG node id */
624 /* detected preset */
625 const struct hda_codec_preset *preset;
628 struct hda_codec_ops patch_ops;
630 /* PCM to create, set by patch_ops.build_pcms callback */
631 unsigned int num_pcms;
632 struct hda_pcm *pcm_info;
634 /* codec specific info */
637 /* widget capabilities cache */
638 unsigned int num_nodes;
642 struct hda_cache_rec amp_cache; /* cache for amp access */
643 struct hda_cache_rec cmd_cache; /* cache for other commands */
645 struct mutex spdif_mutex;
646 unsigned int spdif_status; /* IEC958 status bits */
647 unsigned short spdif_ctls; /* SPDIF control bits */
648 unsigned int spdif_in_enable; /* SPDIF input enable? */
650 struct snd_hwdep *hwdep; /* assigned hwdep device */
652 #ifdef CONFIG_SND_HDA_POWER_SAVE
653 unsigned int power_on :1; /* current (global) power-state */
654 unsigned int power_transition :1; /* power-state in transition */
655 int power_count; /* current (global) power refcount */
656 struct delayed_work power_work; /* delayed task for powerdown */
662 HDA_INPUT, HDA_OUTPUT
669 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
670 struct hda_bus **busp);
671 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
672 struct hda_codec **codecp);
675 * low level functions
677 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
679 unsigned int verb, unsigned int parm);
680 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
681 unsigned int verb, unsigned int parm);
682 #define snd_hda_param_read(codec, nid, param) \
683 snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
684 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
685 hda_nid_t *start_id);
686 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
687 hda_nid_t *conn_list, int max_conns);
695 void snd_hda_sequence_write(struct hda_codec *codec,
696 const struct hda_verb *seq);
698 /* unsolicited event */
699 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
702 #ifdef SND_HDA_NEEDS_RESUME
703 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
704 int direct, unsigned int verb, unsigned int parm);
705 void snd_hda_sequence_write_cache(struct hda_codec *codec,
706 const struct hda_verb *seq);
707 void snd_hda_codec_resume_cache(struct hda_codec *codec);
709 #define snd_hda_codec_write_cache snd_hda_codec_write
710 #define snd_hda_sequence_write_cache snd_hda_sequence_write
716 int snd_hda_build_controls(struct hda_bus *bus);
721 int snd_hda_build_pcms(struct hda_bus *bus);
722 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
724 int channel_id, int format);
725 void snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid);
726 unsigned int snd_hda_calc_stream_format(unsigned int rate,
727 unsigned int channels,
729 unsigned int maxbps);
730 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
731 u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
732 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
733 unsigned int format);
738 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
744 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state);
745 int snd_hda_resume(struct hda_bus *bus);
751 #ifdef CONFIG_SND_HDA_POWER_SAVE
752 void snd_hda_power_up(struct hda_codec *codec);
753 void snd_hda_power_down(struct hda_codec *codec);
754 #define snd_hda_codec_needs_resume(codec) codec->power_count
755 int snd_hda_codecs_inuse(struct hda_bus *bus);
757 static inline void snd_hda_power_up(struct hda_codec *codec) {}
758 static inline void snd_hda_power_down(struct hda_codec *codec) {}
759 #define snd_hda_codec_needs_resume(codec) 1
760 #define snd_hda_codecs_inuse(bus) 1
763 #endif /* __SOUND_HDA_CODEC_H */