sound/pci/hda/hda_codec.h

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   5  *
   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)
   9  *  any later version.
  10  *
  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
  14  *  more details.
  15  *
  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.
  19  */
  20
  21 #ifndef __SOUND_HDA_CODEC_H
  22 #define __SOUND_HDA_CODEC_H
  23
  24 #include <linux/kref.h>
  25 #include <sound/info.h>
  26 #include <sound/control.h>
  27 #include <sound/pcm.h>
  28 #include <sound/hwdep.h>
  29 #include <sound/hdaudio.h>
  30 #include <sound/hda_verbs.h>
  31
  32 /*
  33  * generic arrays
  34  */
  35 struct snd_array {
  36         unsigned int used;
  37         unsigned int alloced;
  38         unsigned int elem_size;
  39         unsigned int alloc_align;
  40         void *list;
  41 };
  42
  43 void *snd_array_new(struct snd_array *array);
  44 void snd_array_free(struct snd_array *array);
  45 static inline void snd_array_init(struct snd_array *array, unsigned int size,
  46                                   unsigned int align)
  47 {
  48         array->elem_size = size;
  49         array->alloc_align = align;
  50 }
  51
  52 static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
  53 {
  54         return array->list + idx * array->elem_size;
  55 }
  56
  57 static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
  58 {
  59         return (unsigned long)(ptr - array->list) / array->elem_size;
  60 }
  61
  62 /*
  63  * Structures
  64  */
  65
  66 struct hda_bus;
  67 struct hda_beep;
  68 struct hda_codec;
  69 struct hda_pcm;
  70 struct hda_pcm_stream;
  71
  72 /* NID type */
  73 typedef u16 hda_nid_t;
  74
  75 /* bus operators */
  76 struct hda_bus_ops {
  77         /* send a single command */
  78         int (*command)(struct hda_bus *bus, unsigned int cmd);
  79         /* get a response from the last command */
  80         unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
  81         /* free the private data */
  82         void (*private_free)(struct hda_bus *);
  83         /* attach a PCM stream */
  84         int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
  85                           struct hda_pcm *pcm);
  86         /* reset bus for retry verb */
  87         void (*bus_reset)(struct hda_bus *bus);
  88 #ifdef CONFIG_SND_HDA_DSP_LOADER
  89         /* prepare DSP transfer */
  90         int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
  91                                 unsigned int byte_size,
  92                                 struct snd_dma_buffer *bufp);
  93         /* start/stop DSP transfer */
  94         void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
  95         /* clean up DSP transfer */
  96         void (*load_dsp_cleanup)(struct hda_bus *bus,
  97                                  struct snd_dma_buffer *dmab);
  98 #endif
  99 };
 100
 101 /*
 102  * codec bus
 103  *
 104  * each controller needs to creata a hda_bus to assign the accessor.
 105  * A hda_bus contains several codecs in the list codec_list.
 106  */
 107 struct hda_bus {
 108         struct hdac_bus core;
 109
 110         struct snd_card *card;
 111
 112         void *private_data;
 113         struct pci_dev *pci;
 114         const char *modelname;
 115         struct hda_bus_ops ops;
 116
 117         struct mutex prepare_mutex;
 118
 119         /* assigned PCMs */
 120         DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
 121
 122         /* misc op flags */
 123         unsigned int needs_damn_long_delay :1;
 124         unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
 125         /* status for codec/controller */
 126         unsigned int shutdown :1;       /* being unloaded */
 127         unsigned int rirb_error:1;      /* error in codec communication */
 128         unsigned int response_reset:1;  /* controller was reset */
 129         unsigned int in_reset:1;        /* during reset operation */
 130         unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
 131
 132         int primary_dig_out_type;       /* primary digital out PCM type */
 133 };
 134
 135 /*
 136  * codec preset
 137  *
 138  * Known codecs have the patch to build and set up the controls/PCMs
 139  * better than the generic parser.
 140  */
 141 struct hda_codec_preset {
 142         unsigned int id;
 143         unsigned int mask;
 144         unsigned int subs;
 145         unsigned int subs_mask;
 146         unsigned int rev;
 147         hda_nid_t afg, mfg;
 148         const char *name;
 149         int (*patch)(struct hda_codec *codec);
 150 };
 151
 152 #define HDA_CODEC_ID_GENERIC_HDMI       0x00000101
 153 #define HDA_CODEC_ID_GENERIC            0x00000201
 154
 155 struct hda_codec_driver {
 156         struct hdac_driver core;
 157         const struct hda_codec_preset *preset;
 158 };
 159
 160 int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
 161                                struct module *owner);
 162 #define hda_codec_driver_register(drv) \
 163         __hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
 164 void hda_codec_driver_unregister(struct hda_codec_driver *drv);
 165 #define module_hda_codec_driver(drv) \
 166         module_driver(drv, hda_codec_driver_register, \
 167                       hda_codec_driver_unregister)
 168
 169 /* ops set by the preset patch */
 170 struct hda_codec_ops {
 171         int (*build_controls)(struct hda_codec *codec);
 172         int (*build_pcms)(struct hda_codec *codec);
 173         int (*init)(struct hda_codec *codec);
 174         void (*free)(struct hda_codec *codec);
 175         void (*unsol_event)(struct hda_codec *codec, unsigned int res);
 176         void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
 177                                 unsigned int power_state);
 178 #ifdef CONFIG_PM
 179         int (*suspend)(struct hda_codec *codec);
 180         int (*resume)(struct hda_codec *codec);
 181         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 182 #endif
 183         void (*reboot_notify)(struct hda_codec *codec);
 184         void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
 185 };
 186
 187 /* record for amp information cache */
 188 struct hda_cache_head {
 189         u32 key:31;             /* hash key */
 190         u32 dirty:1;
 191         u16 val;                /* assigned value */
 192         u16 next;
 193 };
 194
 195 struct hda_amp_info {
 196         struct hda_cache_head head;
 197         u32 amp_caps;           /* amp capabilities */
 198         u16 vol[2];             /* current volume & mute */
 199 };
 200
 201 struct hda_cache_rec {
 202         u16 hash[64];                   /* hash table for index */
 203         struct snd_array buf;           /* record entries */
 204 };
 205
 206 /* PCM callbacks */
 207 struct hda_pcm_ops {
 208         int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
 209                     struct snd_pcm_substream *substream);
 210         int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
 211                      struct snd_pcm_substream *substream);
 212         int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
 213                        unsigned int stream_tag, unsigned int format,
 214                        struct snd_pcm_substream *substream);
 215         int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
 216                        struct snd_pcm_substream *substream);
 217         unsigned int (*get_delay)(struct hda_pcm_stream *info,
 218                                   struct hda_codec *codec,
 219                                   struct snd_pcm_substream *substream);
 220 };
 221
 222 /* PCM information for each substream */
 223 struct hda_pcm_stream {
 224         unsigned int substreams;        /* number of substreams, 0 = not exist*/
 225         unsigned int channels_min;      /* min. number of channels */
 226         unsigned int channels_max;      /* max. number of channels */
 227         hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
 228         u32 rates;      /* supported rates */
 229         u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
 230         unsigned int maxbps;    /* supported max. bit per sample */
 231         const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
 232         struct hda_pcm_ops ops;
 233 };
 234
 235 /* PCM types */
 236 enum {
 237         HDA_PCM_TYPE_AUDIO,
 238         HDA_PCM_TYPE_SPDIF,
 239         HDA_PCM_TYPE_HDMI,
 240         HDA_PCM_TYPE_MODEM,
 241         HDA_PCM_NTYPES
 242 };
 243
 244 /* for PCM creation */
 245 struct hda_pcm {
 246         char *name;
 247         struct hda_pcm_stream stream[2];
 248         unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
 249         int device;             /* device number to assign */
 250         struct snd_pcm *pcm;    /* assigned PCM instance */
 251         bool own_chmap;         /* codec driver provides own channel maps */
 252         /* private: */
 253         struct hda_codec *codec;
 254         struct kref kref;
 255         struct list_head list;
 256 };
 257
 258 /* codec information */
 259 struct hda_codec {
 260         struct hdac_device core;
 261         struct hda_bus *bus;
 262         struct snd_card *card;
 263         unsigned int addr;      /* codec addr*/
 264
 265         hda_nid_t afg;  /* AFG node id */
 266         hda_nid_t mfg;  /* MFG node id */
 267
 268         /* ids */
 269         u8 afg_function_id;
 270         u8 mfg_function_id;
 271         u8 afg_unsol;
 272         u8 mfg_unsol;
 273         u32 vendor_id;
 274         u32 subsystem_id;
 275         u32 revision_id;
 276         u32 probe_id; /* overridden id for probing */
 277
 278         /* detected preset */
 279         const struct hda_codec_preset *preset;
 280         const char *vendor_name;        /* codec vendor name */
 281         const char *chip_name;          /* codec chip name */
 282         const char *modelname;  /* model name for preset */
 283
 284         /* set by patch */
 285         struct hda_codec_ops patch_ops;
 286
 287         /* PCM to create, set by patch_ops.build_pcms callback */
 288         struct list_head pcm_list_head;
 289
 290         /* codec specific info */
 291         void *spec;
 292
 293         /* beep device */
 294         struct hda_beep *beep;
 295         unsigned int beep_mode;
 296
 297         /* widget capabilities cache */
 298         unsigned int num_nodes;
 299         hda_nid_t start_nid;
 300         u32 *wcaps;
 301
 302         struct snd_array mixers;        /* list of assigned mixer elements */
 303         struct snd_array nids;          /* list of mapped mixer elements */
 304
 305         struct hda_cache_rec amp_cache; /* cache for amp access */
 306         struct hda_cache_rec cmd_cache; /* cache for other commands */
 307
 308         struct list_head conn_list;     /* linked-list of connection-list */
 309
 310         struct mutex spdif_mutex;
 311         struct mutex control_mutex;
 312         struct mutex hash_mutex;
 313         struct snd_array spdif_out;
 314         unsigned int spdif_in_enable;   /* SPDIF input enable? */
 315         const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
 316         struct snd_array init_pins;     /* initial (BIOS) pin configurations */
 317         struct snd_array driver_pins;   /* pin configs set by codec parser */
 318         struct snd_array cvt_setups;    /* audio convert setups */
 319
 320         struct mutex user_mutex;
 321 #ifdef CONFIG_SND_HDA_RECONFIG
 322         struct snd_array init_verbs;    /* additional init verbs */
 323         struct snd_array hints;         /* additional hints */
 324         struct snd_array user_pins;     /* default pin configs to override */
 325 #endif
 326
 327 #ifdef CONFIG_SND_HDA_HWDEP
 328         struct snd_hwdep *hwdep;        /* assigned hwdep device */
 329 #endif
 330
 331         /* misc flags */
 332         unsigned int in_freeing:1; /* being released */
 333         unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
 334                                              * status change
 335                                              * (e.g. Realtek codecs)
 336                                              */
 337         unsigned int pin_amp_workaround:1; /* pin out-amp takes index
 338                                             * (e.g. Conexant codecs)
 339                                             */
 340         unsigned int single_adc_amp:1; /* adc in-amp takes no index
 341                                         * (e.g. CX20549 codec)
 342                                         */
 343         unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
 344         unsigned int pins_shutup:1;     /* pins are shut up */
 345         unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 346         unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
 347         unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
 348         unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
 349         unsigned int pcm_format_first:1; /* PCM format must be set first */
 350         unsigned int epss:1;            /* supporting EPSS? */
 351         unsigned int cached_write:1;    /* write only to caches */
 352         unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
 353         unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
 354         unsigned int power_save_node:1; /* advanced PM for each widget */
 355 #ifdef CONFIG_PM
 356         unsigned int d3_stop_clk:1;     /* support D3 operation without BCLK */
 357         atomic_t in_pm;         /* suspend/resume being performed */
 358         unsigned long power_on_acct;
 359         unsigned long power_off_acct;
 360         unsigned long power_jiffies;
 361 #endif
 362
 363         /* filter the requested power state per nid */
 364         unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
 365                                      unsigned int power_state);
 366
 367         /* codec-specific additional proc output */
 368         void (*proc_widget_hook)(struct snd_info_buffer *buffer,
 369                                  struct hda_codec *codec, hda_nid_t nid);
 370
 371         /* jack detection */
 372         struct snd_array jacktbl;
 373         unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
 374         struct delayed_work jackpoll_work;
 375
 376 #ifdef CONFIG_SND_HDA_INPUT_JACK
 377         /* jack detection */
 378         struct snd_array jacks;
 379 #endif
 380
 381         int depop_delay; /* depop delay in ms, -1 for default delay time */
 382
 383         /* fix-up list */
 384         int fixup_id;
 385         const struct hda_fixup *fixup_list;
 386         const char *fixup_name;
 387
 388         /* additional init verbs */
 389         struct snd_array verbs;
 390 };
 391
 392 #define dev_to_hda_codec(_dev)  container_of(_dev, struct hda_codec, core.dev)
 393 #define hda_codec_dev(_dev)     (&(_dev)->core.dev)
 394
 395 #define list_for_each_codec(c, bus) \
 396         list_for_each_entry(c, &(bus)->core.codec_list, core.list)
 397
 398 /* direction */
 399 enum {
 400         HDA_INPUT, HDA_OUTPUT
 401 };
 402
 403 /* snd_hda_codec_read/write optional flags */
 404 #define HDA_RW_NO_RESPONSE_FALLBACK     (1 << 0)
 405
 406 /*
 407  * constructors
 408  */
 409 int snd_hda_bus_new(struct snd_card *card, struct hda_bus **busp);
 410 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 411                       unsigned int codec_addr, struct hda_codec **codecp);
 412 int snd_hda_codec_configure(struct hda_codec *codec);
 413 int snd_hda_codec_update_widgets(struct hda_codec *codec);
 414
 415 /*
 416  * low level functions
 417  */
 418 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 419                                 int flags,
 420                                 unsigned int verb, unsigned int parm);
 421 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
 422                         unsigned int verb, unsigned int parm);
 423 #define snd_hda_param_read(codec, nid, param) \
 424         snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
 425 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 426                           hda_nid_t *start_id);
 427 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 428                             hda_nid_t *conn_list, int max_conns);
 429 static inline int
 430 snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
 431 {
 432         return snd_hda_get_connections(codec, nid, NULL, 0);
 433 }
 434 int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
 435 int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
 436                             hda_nid_t *conn_list, int max_conns);
 437 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
 438                           const hda_nid_t **listp);
 439 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
 440                           const hda_nid_t *list);
 441 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
 442                            hda_nid_t nid, int recursive);
 443 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
 444                         u8 *dev_list, int max_devices);
 445 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 446                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
 447
 448 struct hda_verb {
 449         hda_nid_t nid;
 450         u32 verb;
 451         u32 param;
 452 };
 453
 454 void snd_hda_sequence_write(struct hda_codec *codec,
 455                             const struct hda_verb *seq);
 456
 457 /* unsolicited event */
 458 static inline void
 459 snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 460 {
 461         snd_hdac_bus_queue_event(&bus->core, res, res_ex);
 462 }
 463
 464 /* cached write */
 465 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 466                               int flags, unsigned int verb, unsigned int parm);
 467 void snd_hda_sequence_write_cache(struct hda_codec *codec,
 468                                   const struct hda_verb *seq);
 469 int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
 470                               int flags, unsigned int verb, unsigned int parm);
 471 void snd_hda_codec_resume_cache(struct hda_codec *codec);
 472 /* both for cmd & amp caches */
 473 void snd_hda_codec_flush_cache(struct hda_codec *codec);
 474
 475 /* the struct for codec->pin_configs */
 476 struct hda_pincfg {
 477         hda_nid_t nid;
 478         unsigned char ctrl;     /* original pin control value */
 479         unsigned char target;   /* target pin control value */
 480         unsigned int cfg;       /* default configuration */
 481 };
 482
 483 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
 484 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
 485                              unsigned int cfg);
 486 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
 487                        hda_nid_t nid, unsigned int cfg); /* for hwdep */
 488 void snd_hda_shutup_pins(struct hda_codec *codec);
 489
 490 /* SPDIF controls */
 491 struct hda_spdif_out {
 492         hda_nid_t nid;          /* Converter nid values relate to */
 493         unsigned int status;    /* IEC958 status bits */
 494         unsigned short ctls;    /* SPDIF control bits */
 495 };
 496 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
 497                                                hda_nid_t nid);
 498 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
 499 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
 500
 501 /*
 502  * Mixer
 503  */
 504 int snd_hda_codec_build_controls(struct hda_codec *codec);
 505
 506 /*
 507  * PCM
 508  */
 509 int snd_hda_codec_parse_pcms(struct hda_codec *codec);
 510 int snd_hda_codec_build_pcms(struct hda_codec *codec);
 511
 512 __printf(2, 3)
 513 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
 514                                       const char *fmt, ...);
 515
 516 static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm)
 517 {
 518         kref_get(&pcm->kref);
 519 }
 520 void snd_hda_codec_pcm_put(struct hda_pcm *pcm);
 521
 522 int snd_hda_codec_prepare(struct hda_codec *codec,
 523                           struct hda_pcm_stream *hinfo,
 524                           unsigned int stream,
 525                           unsigned int format,
 526                           struct snd_pcm_substream *substream);
 527 void snd_hda_codec_cleanup(struct hda_codec *codec,
 528                            struct hda_pcm_stream *hinfo,
 529                            struct snd_pcm_substream *substream);
 530
 531 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 532                                 u32 stream_tag,
 533                                 int channel_id, int format);
 534 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
 535                                     int do_now);
 536 #define snd_hda_codec_cleanup_stream(codec, nid) \
 537         __snd_hda_codec_cleanup_stream(codec, nid, 0)
 538 unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
 539                                         unsigned int rate,
 540                                         unsigned int channels,
 541                                         unsigned int format,
 542                                         unsigned int maxbps,
 543                                         unsigned short spdif_ctls);
 544 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
 545                                 unsigned int format);
 546
 547 extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
 548
 549 /*
 550  * Misc
 551  */
 552 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
 553 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 554                                     unsigned int power_state);
 555
 556 int snd_hda_lock_devices(struct hda_bus *bus);
 557 void snd_hda_unlock_devices(struct hda_bus *bus);
 558 void snd_hda_bus_reset(struct hda_bus *bus);
 559
 560 /*
 561  * power management
 562  */
 563 extern const struct dev_pm_ops hda_codec_driver_pm;
 564
 565 static inline
 566 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
 567 {
 568 #ifdef CONFIG_PM
 569         if (codec->patch_ops.check_power_status)
 570                 return codec->patch_ops.check_power_status(codec, nid);
 571 #endif
 572         return 0;
 573 }
 574
 575 /*
 576  * get widget information
 577  */
 578 const char *snd_hda_get_jack_connectivity(u32 cfg);
 579 const char *snd_hda_get_jack_type(u32 cfg);
 580 const char *snd_hda_get_jack_location(u32 cfg);
 581
 582 /*
 583  * power saving
 584  */
 585 #ifdef CONFIG_PM
 586 void snd_hda_power_up(struct hda_codec *codec);
 587 void snd_hda_power_down(struct hda_codec *codec);
 588 void snd_hda_set_power_save(struct hda_bus *bus, int delay);
 589 void snd_hda_update_power_acct(struct hda_codec *codec);
 590 #else
 591 static inline void snd_hda_power_up(struct hda_codec *codec) {}
 592 static inline void snd_hda_power_down(struct hda_codec *codec) {}
 593 static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
 594 #endif
 595
 596 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 597 /*
 598  * patch firmware
 599  */
 600 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
 601 #endif
 602
 603 #ifdef CONFIG_SND_HDA_DSP_LOADER
 604 static inline int
 605 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 606                                 unsigned int size,
 607                                 struct snd_dma_buffer *bufp)
 608 {
 609         return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
 610 }
 611 static inline void
 612 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
 613 {
 614         return codec->bus->ops.load_dsp_trigger(codec->bus, start);
 615 }
 616 static inline void
 617 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 618                                 struct snd_dma_buffer *dmab)
 619 {
 620         return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
 621 }
 622 #else
 623 static inline int
 624 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 625                                 unsigned int size,
 626                                 struct snd_dma_buffer *bufp)
 627 {
 628         return -ENOSYS;
 629 }
 630 static inline void
 631 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
 632 static inline void
 633 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 634                                 struct snd_dma_buffer *dmab) {}
 635 #endif
 636
 637 #endif /* __SOUND_HDA_CODEC_H */