include/sound/hda_codec.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Universal Interface for Intel High Definition Audio Codec
   4  *
   5  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   6  */
   7
   8 #ifndef __SOUND_HDA_CODEC_H
   9 #define __SOUND_HDA_CODEC_H
  10
  11 #include <linux/refcount.h>
  12 #include <linux/mod_devicetable.h>
  13 #include <sound/info.h>
  14 #include <sound/control.h>
  15 #include <sound/pcm.h>
  16 #include <sound/hwdep.h>
  17 #include <sound/hdaudio.h>
  18 #include <sound/hda_verbs.h>
  19 #include <sound/hda_regmap.h>
  20
  21 /*
  22  * Structures
  23  */
  24
  25 struct hda_bus;
  26 struct hda_beep;
  27 struct hda_codec;
  28 struct hda_pcm;
  29 struct hda_pcm_stream;
  30 struct hda_codec_ops;
  31
  32 /*
  33  * codec bus
  34  *
  35  * each controller needs to creata a hda_bus to assign the accessor.
  36  * A hda_bus contains several codecs in the list codec_list.
  37  */
  38 struct hda_bus {
  39         struct hdac_bus core;
  40
  41         struct snd_card *card;
  42
  43         struct pci_dev *pci;
  44         const char *modelname;
  45
  46         struct mutex prepare_mutex;
  47
  48         /* assigned PCMs */
  49         DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
  50
  51         /* misc op flags */
  52         unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
  53         /* status for codec/controller */
  54         unsigned int shutdown :1;       /* being unloaded */
  55         unsigned int response_reset:1;  /* controller was reset */
  56         unsigned int in_reset:1;        /* during reset operation */
  57         unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
  58         unsigned int bus_probing :1;    /* during probing process */
  59         unsigned int keep_power:1;      /* keep power up for notification */
  60         unsigned int jackpoll_in_suspend:1; /* keep jack polling during
  61                                              * runtime suspend
  62                                              */
  63
  64         int primary_dig_out_type;       /* primary digital out PCM type */
  65         unsigned int mixer_assigned;    /* codec addr for mixer name */
  66 };
  67
  68 /* from hdac_bus to hda_bus */
  69 #define to_hda_bus(bus)         container_of(bus, struct hda_bus, core)
  70
  71 /*
  72  * codec preset
  73  */
  74
  75 #define HDA_CODEC_ID_SKIP_PROBE         0x00000001
  76 #define HDA_CODEC_ID_GENERIC_HDMI       0x00000101
  77 #define HDA_CODEC_ID_GENERIC            0x00000201
  78
  79 #define HDA_CODEC_ID_REV_MODEL(_vid, _rev, _name, _model)         \
  80         { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \
  81           .api_version = HDA_DEV_LEGACY, .driver_data = (_model) }
  82 #define HDA_CODEC_ID_MODEL(_vid, _name, _model)   \
  83         HDA_CODEC_ID_REV_MODEL(_vid, 0, _name, _model)
  84 #define HDA_CODEC_ID_REV(_vid, _rev, _name) \
  85         HDA_CODEC_ID_REV_MODEL(_vid, _rev, _name, 0)
  86 #define HDA_CODEC_ID(_vid, _name) \
  87         HDA_CODEC_ID_REV(_vid, 0, _name)
  88
  89 struct hda_codec_driver {
  90         struct hdac_driver core;
  91         const struct hda_device_id *id;
  92         const struct hda_codec_ops *ops;
  93 };
  94
  95 #define hda_codec_to_driver(codec) \
  96         container_of((codec)->core.dev.driver, struct hda_codec_driver, core.driver)
  97
  98 int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
  99                                struct module *owner);
 100 #define hda_codec_driver_register(drv) \
 101         __hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
 102 void hda_codec_driver_unregister(struct hda_codec_driver *drv);
 103 #define module_hda_codec_driver(drv) \
 104         module_driver(drv, hda_codec_driver_register, \
 105                       hda_codec_driver_unregister)
 106
 107 /* ops for hda codec driver */
 108 struct hda_codec_ops {
 109         int (*probe)(struct hda_codec *codec, const struct hda_device_id *id);
 110         void (*remove)(struct hda_codec *codec);
 111         int (*build_controls)(struct hda_codec *codec);
 112         int (*build_pcms)(struct hda_codec *codec);
 113         int (*init)(struct hda_codec *codec);
 114         void (*unsol_event)(struct hda_codec *codec, unsigned int res);
 115         void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
 116                                 unsigned int power_state);
 117         int (*suspend)(struct hda_codec *codec);
 118         int (*resume)(struct hda_codec *codec);
 119         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 120         void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
 121 };
 122
 123 /* PCM callbacks */
 124 struct hda_pcm_ops {
 125         int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
 126                     struct snd_pcm_substream *substream);
 127         int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
 128                      struct snd_pcm_substream *substream);
 129         int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
 130                        unsigned int stream_tag, unsigned int format,
 131                        struct snd_pcm_substream *substream);
 132         int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
 133                        struct snd_pcm_substream *substream);
 134         unsigned int (*get_delay)(struct hda_pcm_stream *info,
 135                                   struct hda_codec *codec,
 136                                   struct snd_pcm_substream *substream);
 137 };
 138
 139 /* PCM information for each substream */
 140 struct hda_pcm_stream {
 141         unsigned int substreams;        /* number of substreams, 0 = not exist*/
 142         unsigned int channels_min;      /* min. number of channels */
 143         unsigned int channels_max;      /* max. number of channels */
 144         hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
 145         u32 rates;      /* supported rates */
 146         u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
 147         u32 subformats; /* for S32_LE format, SNDRV_PCM_SUBFMTBIT_* */
 148         unsigned int maxbps;    /* supported max. bit per sample */
 149         const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
 150         struct hda_pcm_ops ops;
 151 };
 152
 153 /* PCM types */
 154 enum {
 155         HDA_PCM_TYPE_AUDIO,
 156         HDA_PCM_TYPE_SPDIF,
 157         HDA_PCM_TYPE_HDMI,
 158         HDA_PCM_TYPE_MODEM,
 159         HDA_PCM_NTYPES
 160 };
 161
 162 #define SNDRV_PCM_INVALID_DEVICE        (-1)
 163 /* for PCM creation */
 164 struct hda_pcm {
 165         char *name;
 166         struct hda_pcm_stream stream[2];
 167         unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
 168         int device;             /* device number to assign */
 169         struct snd_pcm *pcm;    /* assigned PCM instance */
 170         bool own_chmap;         /* codec driver provides own channel maps */
 171         /* private: */
 172         struct hda_codec *codec;
 173         struct list_head list;
 174         unsigned int disconnected:1;
 175 };
 176
 177 /* codec information */
 178 struct hda_codec {
 179         struct hdac_device core;
 180         struct hda_bus *bus;
 181         struct snd_card *card;
 182         unsigned int addr;      /* codec addr*/
 183         u32 probe_id; /* overridden id for probing */
 184
 185         /* detected preset */
 186         const struct hda_device_id *preset;
 187         const char *modelname;  /* model name for preset */
 188
 189         /* PCM to create, set by hda_codec_ops.build_pcms callback */
 190         struct list_head pcm_list_head;
 191         refcount_t pcm_ref;
 192         wait_queue_head_t remove_sleep;
 193
 194         /* codec specific info */
 195         void *spec;
 196
 197         /* beep device */
 198         struct hda_beep *beep;
 199         unsigned int beep_mode;
 200         bool beep_just_power_on;
 201
 202         /* widget capabilities cache */
 203         u32 *wcaps;
 204
 205         struct snd_array mixers;        /* list of assigned mixer elements */
 206         struct snd_array nids;          /* list of mapped mixer elements */
 207
 208         struct list_head conn_list;     /* linked-list of connection-list */
 209
 210         struct mutex spdif_mutex;
 211         struct mutex control_mutex;
 212         struct snd_array spdif_out;
 213         unsigned int spdif_in_enable;   /* SPDIF input enable? */
 214         const hda_nid_t *follower_dig_outs; /* optional digital out follower widgets */
 215         struct snd_array init_pins;     /* initial (BIOS) pin configurations */
 216         struct snd_array driver_pins;   /* pin configs set by codec parser */
 217         struct snd_array cvt_setups;    /* audio convert setups */
 218
 219         struct mutex user_mutex;
 220 #ifdef CONFIG_SND_HDA_RECONFIG
 221         struct snd_array init_verbs;    /* additional init verbs */
 222         struct snd_array hints;         /* additional hints */
 223         struct snd_array user_pins;     /* default pin configs to override */
 224 #endif
 225
 226 #ifdef CONFIG_SND_HDA_HWDEP
 227         struct snd_hwdep *hwdep;        /* assigned hwdep device */
 228 #endif
 229
 230         /* misc flags */
 231         unsigned int configured:1; /* codec was configured */
 232         unsigned int in_freeing:1; /* being released */
 233         unsigned int display_power_control:1; /* needs display power */
 234         unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
 235                                              * status change
 236                                              * (e.g. Realtek codecs)
 237                                              */
 238         unsigned int pin_amp_workaround:1; /* pin out-amp takes index
 239                                             * (e.g. Conexant codecs)
 240                                             */
 241         unsigned int single_adc_amp:1; /* adc in-amp takes no index
 242                                         * (e.g. CX20549 codec)
 243                                         */
 244         unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
 245         unsigned int pins_shutup:1;     /* pins are shut up */
 246         unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 247         unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
 248         unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
 249         unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
 250         unsigned int pcm_format_first:1; /* PCM format must be set first */
 251         unsigned int cached_write:1;    /* write only to caches */
 252         unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
 253         unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
 254         unsigned int power_save_node:1; /* advanced PM for each widget */
 255         unsigned int auto_runtime_pm:1; /* enable automatic codec runtime pm */
 256         unsigned int force_pin_prefix:1; /* Add location prefix */
 257         unsigned int link_down_at_suspend:1; /* link down at runtime suspend */
 258         unsigned int relaxed_resume:1;  /* don't resume forcibly for jack */
 259         unsigned int forced_resume:1; /* forced resume for jack */
 260         unsigned int no_stream_clean_at_suspend:1; /* do not clean streams at suspend */
 261         unsigned int ctl_dev_id:1; /* old control element id build behaviour */
 262
 263         unsigned long power_on_acct;
 264         unsigned long power_off_acct;
 265         unsigned long power_jiffies;
 266
 267         /* filter the requested power state per nid */
 268         unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
 269                                      unsigned int power_state);
 270
 271         /* codec-specific additional proc output */
 272         void (*proc_widget_hook)(struct snd_info_buffer *buffer,
 273                                  struct hda_codec *codec, hda_nid_t nid);
 274
 275         /* jack detection */
 276         struct snd_array jacktbl;
 277         unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
 278         struct delayed_work jackpoll_work;
 279
 280         int depop_delay; /* depop delay in ms, -1 for default delay time */
 281
 282         /* fix-up list */
 283         int fixup_id;
 284         const struct hda_fixup *fixup_list;
 285         const char *fixup_name;
 286
 287         /* additional init verbs */
 288         struct snd_array verbs;
 289 };
 290
 291 #define dev_to_hda_codec(_dev)  container_of(_dev, struct hda_codec, core.dev)
 292 #define hda_codec_dev(_dev)     (&(_dev)->core.dev)
 293
 294 #define hdac_to_hda_codec(_hdac) container_of(_hdac, struct hda_codec, core)
 295
 296 #define list_for_each_codec(c, bus) \
 297         list_for_each_entry(c, &(bus)->core.codec_list, core.list)
 298 #define list_for_each_codec_safe(c, n, bus)                             \
 299         list_for_each_entry_safe(c, n, &(bus)->core.codec_list, core.list)
 300
 301 /* snd_hda_codec_read/write optional flags */
 302 #define HDA_RW_NO_RESPONSE_FALLBACK     (1 << 0)
 303
 304 /*
 305  * constructors
 306  */
 307 __printf(3, 4) struct hda_codec *
 308 snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr,
 309                           const char *fmt, ...);
 310 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 311                       unsigned int codec_addr, struct hda_codec **codecp);
 312 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card,
 313                       unsigned int codec_addr, struct hda_codec *codec,
 314                       bool snddev_managed);
 315 int snd_hda_codec_configure(struct hda_codec *codec);
 316 int snd_hda_codec_update_widgets(struct hda_codec *codec);
 317 void snd_hda_codec_register(struct hda_codec *codec);
 318 void snd_hda_codec_unregister(struct hda_codec *codec);
 319 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
 320
 321 /*
 322  * low level functions
 323  */
 324 static inline unsigned int
 325 snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 326                                 int flags,
 327                                 unsigned int verb, unsigned int parm)
 328 {
 329         return snd_hdac_codec_read(&codec->core, nid, flags, verb, parm);
 330 }
 331
 332 static inline int
 333 snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
 334                         unsigned int verb, unsigned int parm)
 335 {
 336         return snd_hdac_codec_write(&codec->core, nid, flags, verb, parm);
 337 }
 338
 339 #define snd_hda_param_read(codec, nid, param) \
 340         snd_hdac_read_parm(&(codec)->core, nid, param)
 341 #define snd_hda_get_sub_nodes(codec, nid, start_nid) \
 342         snd_hdac_get_sub_nodes(&(codec)->core, nid, start_nid)
 343 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 344                             hda_nid_t *conn_list, int max_conns);
 345 static inline int
 346 snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
 347 {
 348         return snd_hda_get_connections(codec, nid, NULL, 0);
 349 }
 350
 351 #define snd_hda_get_raw_connections(codec, nid, list, max_conns) \
 352         snd_hdac_get_connections(&(codec)->core, nid, list, max_conns)
 353 #define snd_hda_get_num_raw_conns(codec, nid) \
 354         snd_hdac_get_connections(&(codec)->core, nid, NULL, 0)
 355
 356 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
 357                           const hda_nid_t **listp);
 358 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
 359                           const hda_nid_t *list);
 360 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
 361                            hda_nid_t nid, int recursive);
 362 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid);
 363 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
 364                         u8 *dev_list, int max_devices);
 365 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid);
 366 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id);
 367
 368 struct hda_verb {
 369         hda_nid_t nid;
 370         u32 verb;
 371         u32 param;
 372 };
 373
 374 void snd_hda_sequence_write(struct hda_codec *codec,
 375                             const struct hda_verb *seq);
 376
 377 /* cached write */
 378 static inline int
 379 snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 380                           int flags, unsigned int verb, unsigned int parm)
 381 {
 382         return snd_hdac_regmap_write(&codec->core, nid, verb, parm);
 383 }
 384
 385 /* the struct for codec->pin_configs */
 386 struct hda_pincfg {
 387         hda_nid_t nid;
 388         unsigned char ctrl;     /* original pin control value */
 389         unsigned char target;   /* target pin control value */
 390         unsigned int cfg;       /* default configuration */
 391 };
 392
 393 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
 394 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
 395                              unsigned int cfg);
 396 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
 397                        hda_nid_t nid, unsigned int cfg); /* for hwdep */
 398 void snd_hda_shutup_pins(struct hda_codec *codec);
 399
 400 /* SPDIF controls */
 401 struct hda_spdif_out {
 402         hda_nid_t nid;          /* Converter nid values relate to */
 403         unsigned int status;    /* IEC958 status bits */
 404         unsigned short ctls;    /* SPDIF control bits */
 405 };
 406 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
 407                                                hda_nid_t nid);
 408 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
 409 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
 410
 411 /*
 412  * Mixer
 413  */
 414 int snd_hda_codec_build_controls(struct hda_codec *codec);
 415
 416 /*
 417  * PCM
 418  */
 419 int snd_hda_codec_parse_pcms(struct hda_codec *codec);
 420 int snd_hda_codec_build_pcms(struct hda_codec *codec);
 421
 422 __printf(2, 3)
 423 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
 424                                       const char *fmt, ...);
 425
 426 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
 427
 428 static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm)
 429 {
 430         refcount_inc(&pcm->codec->pcm_ref);
 431 }
 432 void snd_hda_codec_pcm_put(struct hda_pcm *pcm);
 433
 434 int snd_hda_codec_prepare(struct hda_codec *codec,
 435                           struct hda_pcm_stream *hinfo,
 436                           unsigned int stream,
 437                           unsigned int format,
 438                           struct snd_pcm_substream *substream);
 439 void snd_hda_codec_cleanup(struct hda_codec *codec,
 440                            struct hda_pcm_stream *hinfo,
 441                            struct snd_pcm_substream *substream);
 442
 443 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 444                                 u32 stream_tag,
 445                                 int channel_id, int format);
 446 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
 447                                     int do_now);
 448 #define snd_hda_codec_cleanup_stream(codec, nid) \
 449         __snd_hda_codec_cleanup_stream(codec, nid, 0)
 450
 451 #define snd_hda_query_supported_pcm(codec, nid, ratesp, fmtsp, subfmtp, bpsp) \
 452         snd_hdac_query_supported_pcm(&(codec)->core, nid, ratesp, fmtsp, subfmtp, bpsp)
 453 #define snd_hda_is_supported_format(codec, nid, fmt) \
 454         snd_hdac_is_supported_format(&(codec)->core, nid, fmt)
 455
 456 extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
 457
 458 int snd_hda_attach_pcm_stream(struct hda_bus *_bus, struct hda_codec *codec,
 459                               struct hda_pcm *cpcm);
 460
 461 /*
 462  * Misc
 463  */
 464 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
 465 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 466                                     unsigned int power_state);
 467
 468 int snd_hda_lock_devices(struct hda_bus *bus);
 469 void snd_hda_unlock_devices(struct hda_bus *bus);
 470 void snd_hda_bus_reset(struct hda_bus *bus);
 471 void snd_hda_bus_reset_codecs(struct hda_bus *bus);
 472
 473 int snd_hda_codec_set_name(struct hda_codec *codec, const char *name);
 474
 475 /*
 476  * power management
 477  */
 478 extern const struct dev_pm_ops hda_codec_driver_pm;
 479
 480 static inline
 481 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
 482 {
 483         struct hda_codec_driver *driver = hda_codec_to_driver(codec);
 484
 485         if (driver->ops && driver->ops->check_power_status)
 486                 return driver->ops->check_power_status(codec, nid);
 487         return 0;
 488 }
 489
 490 /*
 491  * power saving
 492  */
 493 #define snd_hda_power_up(codec)         snd_hdac_power_up(&(codec)->core)
 494 #define snd_hda_power_up_pm(codec)      snd_hdac_power_up_pm(&(codec)->core)
 495 #define snd_hda_power_down(codec)       snd_hdac_power_down(&(codec)->core)
 496 #define snd_hda_power_down_pm(codec)    snd_hdac_power_down_pm(&(codec)->core)
 497 void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay);
 498 void snd_hda_set_power_save(struct hda_bus *bus, int delay);
 499 void snd_hda_update_power_acct(struct hda_codec *codec);
 500
 501 static inline bool hda_codec_need_resume(struct hda_codec *codec)
 502 {
 503         return !codec->relaxed_resume && codec->jacktbl.used;
 504 }
 505
 506 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 507 /*
 508  * patch firmware
 509  */
 510 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
 511 #endif
 512
 513 #ifdef CONFIG_SND_HDA_DSP_LOADER
 514 int snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 515                                    unsigned int size,
 516                                    struct snd_dma_buffer *bufp);
 517 void snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start);
 518 void snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 519                                     struct snd_dma_buffer *dmab);
 520 #else
 521 static inline int
 522 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 523                                 unsigned int size,
 524                                 struct snd_dma_buffer *bufp)
 525 {
 526         return -ENOSYS;
 527 }
 528 static inline void
 529 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
 530 static inline void
 531 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 532                                 struct snd_dma_buffer *dmab) {}
 533 #endif
 534
 535 #endif /* __SOUND_HDA_CODEC_H */