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 <sound/info.h>
  25 #include <sound/control.h>
  26 #include <sound/pcm.h>
  27 #include <sound/hwdep.h>
  28 #include <sound/hda_verbs.h>
  29
  30 /*
  31  * generic arrays
  32  */
  33 struct snd_array {
  34         unsigned int used;
  35         unsigned int alloced;
  36         unsigned int elem_size;
  37         unsigned int alloc_align;
  38         void *list;
  39 };
  40
  41 void *snd_array_new(struct snd_array *array);
  42 void snd_array_free(struct snd_array *array);
  43 static inline void snd_array_init(struct snd_array *array, unsigned int size,
  44                                   unsigned int align)
  45 {
  46         array->elem_size = size;
  47         array->alloc_align = align;
  48 }
  49
  50 static inline void *snd_array_elem(struct snd_array *array, unsigned int idx)
  51 {
  52         return array->list + idx * array->elem_size;
  53 }
  54
  55 static inline unsigned int snd_array_index(struct snd_array *array, void *ptr)
  56 {
  57         return (unsigned long)(ptr - array->list) / array->elem_size;
  58 }
  59
  60 /*
  61  * Structures
  62  */
  63
  64 struct hda_bus;
  65 struct hda_beep;
  66 struct hda_codec;
  67 struct hda_pcm;
  68 struct hda_pcm_stream;
  69 struct hda_bus_unsolicited;
  70
  71 /* NID type */
  72 typedef u16 hda_nid_t;
  73
  74 /* bus operators */
  75 struct hda_bus_ops {
  76         /* send a single command */
  77         int (*command)(struct hda_bus *bus, unsigned int cmd);
  78         /* get a response from the last command */
  79         unsigned int (*get_response)(struct hda_bus *bus, unsigned int addr);
  80         /* free the private data */
  81         void (*private_free)(struct hda_bus *);
  82         /* attach a PCM stream */
  83         int (*attach_pcm)(struct hda_bus *bus, struct hda_codec *codec,
  84                           struct hda_pcm *pcm);
  85         /* reset bus for retry verb */
  86         void (*bus_reset)(struct hda_bus *bus);
  87 #ifdef CONFIG_PM
  88         /* notify power-up/down from codec to controller */
  89         void (*pm_notify)(struct hda_bus *bus, bool power_up);
  90 #endif
  91 #ifdef CONFIG_SND_HDA_DSP_LOADER
  92         /* prepare DSP transfer */
  93         int (*load_dsp_prepare)(struct hda_bus *bus, unsigned int format,
  94                                 unsigned int byte_size,
  95                                 struct snd_dma_buffer *bufp);
  96         /* start/stop DSP transfer */
  97         void (*load_dsp_trigger)(struct hda_bus *bus, bool start);
  98         /* clean up DSP transfer */
  99         void (*load_dsp_cleanup)(struct hda_bus *bus,
 100                                  struct snd_dma_buffer *dmab);
 101 #endif
 102 };
 103
 104 /* template to pass to the bus constructor */
 105 struct hda_bus_template {
 106         void *private_data;
 107         struct pci_dev *pci;
 108         const char *modelname;
 109         int *power_save;
 110         struct hda_bus_ops ops;
 111 };
 112
 113 /*
 114  * codec bus
 115  *
 116  * each controller needs to creata a hda_bus to assign the accessor.
 117  * A hda_bus contains several codecs in the list codec_list.
 118  */
 119 struct hda_bus {
 120         struct snd_card *card;
 121
 122         /* copied from template */
 123         void *private_data;
 124         struct pci_dev *pci;
 125         const char *modelname;
 126         int *power_save;
 127         struct hda_bus_ops ops;
 128
 129         /* codec linked list */
 130         struct list_head codec_list;
 131         unsigned int num_codecs;
 132         /* link caddr -> codec */
 133         struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
 134
 135         struct mutex cmd_mutex;
 136         struct mutex prepare_mutex;
 137
 138         /* unsolicited event queue */
 139         struct hda_bus_unsolicited *unsol;
 140         char workq_name[16];
 141         struct workqueue_struct *workq; /* common workqueue for codecs */
 142
 143         /* assigned PCMs */
 144         DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
 145
 146         /* misc op flags */
 147         unsigned int needs_damn_long_delay :1;
 148         unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
 149         unsigned int sync_write:1;      /* sync after verb write */
 150         /* status for codec/controller */
 151         unsigned int shutdown :1;       /* being unloaded */
 152         unsigned int rirb_error:1;      /* error in codec communication */
 153         unsigned int response_reset:1;  /* controller was reset */
 154         unsigned int in_reset:1;        /* during reset operation */
 155         unsigned int power_keep_link_on:1; /* don't power off HDA link */
 156         unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
 157
 158         int primary_dig_out_type;       /* primary digital out PCM type */
 159 };
 160
 161 /*
 162  * codec preset
 163  *
 164  * Known codecs have the patch to build and set up the controls/PCMs
 165  * better than the generic parser.
 166  */
 167 struct hda_codec_preset {
 168         unsigned int id;
 169         unsigned int mask;
 170         unsigned int subs;
 171         unsigned int subs_mask;
 172         unsigned int rev;
 173         hda_nid_t afg, mfg;
 174         const char *name;
 175         int (*patch)(struct hda_codec *codec);
 176 };
 177
 178 struct hda_codec_preset_list {
 179         const struct hda_codec_preset *preset;
 180         struct module *owner;
 181         struct list_head list;
 182 };
 183
 184 /* initial hook */
 185 int snd_hda_add_codec_preset(struct hda_codec_preset_list *preset);
 186 int snd_hda_delete_codec_preset(struct hda_codec_preset_list *preset);
 187
 188 /* ops set by the preset patch */
 189 struct hda_codec_ops {
 190         int (*build_controls)(struct hda_codec *codec);
 191         int (*build_pcms)(struct hda_codec *codec);
 192         int (*init)(struct hda_codec *codec);
 193         void (*free)(struct hda_codec *codec);
 194         void (*unsol_event)(struct hda_codec *codec, unsigned int res);
 195         void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
 196                                 unsigned int power_state);
 197 #ifdef CONFIG_PM
 198         int (*suspend)(struct hda_codec *codec);
 199         int (*resume)(struct hda_codec *codec);
 200         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 201 #endif
 202         void (*reboot_notify)(struct hda_codec *codec);
 203 };
 204
 205 /* record for amp information cache */
 206 struct hda_cache_head {
 207         u32 key:31;             /* hash key */
 208         u32 dirty:1;
 209         u16 val;                /* assigned value */
 210         u16 next;
 211 };
 212
 213 struct hda_amp_info {
 214         struct hda_cache_head head;
 215         u32 amp_caps;           /* amp capabilities */
 216         u16 vol[2];             /* current volume & mute */
 217 };
 218
 219 struct hda_cache_rec {
 220         u16 hash[64];                   /* hash table for index */
 221         struct snd_array buf;           /* record entries */
 222 };
 223
 224 /* PCM callbacks */
 225 struct hda_pcm_ops {
 226         int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
 227                     struct snd_pcm_substream *substream);
 228         int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
 229                      struct snd_pcm_substream *substream);
 230         int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
 231                        unsigned int stream_tag, unsigned int format,
 232                        struct snd_pcm_substream *substream);
 233         int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
 234                        struct snd_pcm_substream *substream);
 235         unsigned int (*get_delay)(struct hda_pcm_stream *info,
 236                                   struct hda_codec *codec,
 237                                   struct snd_pcm_substream *substream);
 238 };
 239
 240 /* PCM information for each substream */
 241 struct hda_pcm_stream {
 242         unsigned int substreams;        /* number of substreams, 0 = not exist*/
 243         unsigned int channels_min;      /* min. number of channels */
 244         unsigned int channels_max;      /* max. number of channels */
 245         hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
 246         u32 rates;      /* supported rates */
 247         u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
 248         unsigned int maxbps;    /* supported max. bit per sample */
 249         const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
 250         struct hda_pcm_ops ops;
 251 };
 252
 253 /* PCM types */
 254 enum {
 255         HDA_PCM_TYPE_AUDIO,
 256         HDA_PCM_TYPE_SPDIF,
 257         HDA_PCM_TYPE_HDMI,
 258         HDA_PCM_TYPE_MODEM,
 259         HDA_PCM_NTYPES
 260 };
 261
 262 /* for PCM creation */
 263 struct hda_pcm {
 264         char *name;
 265         struct hda_pcm_stream stream[2];
 266         unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
 267         int device;             /* device number to assign */
 268         struct snd_pcm *pcm;    /* assigned PCM instance */
 269         bool own_chmap;         /* codec driver provides own channel maps */
 270 };
 271
 272 /* codec information */
 273 struct hda_codec {
 274         struct hda_bus *bus;
 275         unsigned int addr;      /* codec addr*/
 276         struct list_head list;  /* list point */
 277
 278         hda_nid_t afg;  /* AFG node id */
 279         hda_nid_t mfg;  /* MFG node id */
 280
 281         /* ids */
 282         u8 afg_function_id;
 283         u8 mfg_function_id;
 284         u8 afg_unsol;
 285         u8 mfg_unsol;
 286         u32 vendor_id;
 287         u32 subsystem_id;
 288         u32 revision_id;
 289
 290         /* detected preset */
 291         const struct hda_codec_preset *preset;
 292         struct module *owner;
 293         int (*parser)(struct hda_codec *codec);
 294         const char *vendor_name;        /* codec vendor name */
 295         const char *chip_name;          /* codec chip name */
 296         const char *modelname;  /* model name for preset */
 297
 298         /* set by patch */
 299         struct hda_codec_ops patch_ops;
 300
 301         /* PCM to create, set by patch_ops.build_pcms callback */
 302         unsigned int num_pcms;
 303         struct hda_pcm *pcm_info;
 304
 305         /* codec specific info */
 306         void *spec;
 307
 308         /* beep device */
 309         struct hda_beep *beep;
 310         unsigned int beep_mode;
 311
 312         /* widget capabilities cache */
 313         unsigned int num_nodes;
 314         hda_nid_t start_nid;
 315         u32 *wcaps;
 316
 317         struct snd_array mixers;        /* list of assigned mixer elements */
 318         struct snd_array nids;          /* list of mapped mixer elements */
 319
 320         struct hda_cache_rec amp_cache; /* cache for amp access */
 321         struct hda_cache_rec cmd_cache; /* cache for other commands */
 322
 323         struct list_head conn_list;     /* linked-list of connection-list */
 324
 325         struct mutex spdif_mutex;
 326         struct mutex control_mutex;
 327         struct mutex hash_mutex;
 328         struct snd_array spdif_out;
 329         unsigned int spdif_in_enable;   /* SPDIF input enable? */
 330         const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
 331         struct snd_array init_pins;     /* initial (BIOS) pin configurations */
 332         struct snd_array driver_pins;   /* pin configs set by codec parser */
 333         struct snd_array cvt_setups;    /* audio convert setups */
 334
 335 #ifdef CONFIG_SND_HDA_HWDEP
 336         struct mutex user_mutex;
 337         struct snd_hwdep *hwdep;        /* assigned hwdep device */
 338         struct snd_array init_verbs;    /* additional init verbs */
 339         struct snd_array hints;         /* additional hints */
 340         struct snd_array user_pins;     /* default pin configs to override */
 341 #endif
 342
 343         /* misc flags */
 344         unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
 345                                              * status change
 346                                              * (e.g. Realtek codecs)
 347                                              */
 348         unsigned int pin_amp_workaround:1; /* pin out-amp takes index
 349                                             * (e.g. Conexant codecs)
 350                                             */
 351         unsigned int single_adc_amp:1; /* adc in-amp takes no index
 352                                         * (e.g. CX20549 codec)
 353                                         */
 354         unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
 355         unsigned int pins_shutup:1;     /* pins are shut up */
 356         unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 357         unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
 358         unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
 359         unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
 360         unsigned int pcm_format_first:1; /* PCM format must be set first */
 361         unsigned int epss:1;            /* supporting EPSS? */
 362         unsigned int cached_write:1;    /* write only to caches */
 363         unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
 364         unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
 365 #ifdef CONFIG_PM
 366         unsigned int power_on :1;       /* current (global) power-state */
 367         unsigned int d3_stop_clk:1;     /* support D3 operation without BCLK */
 368         unsigned int pm_up_notified:1;  /* PM notified to controller */
 369         unsigned int in_pm:1;           /* suspend/resume being performed */
 370         int power_transition;   /* power-state in transition */
 371         int power_count;        /* current (global) power refcount */
 372         struct delayed_work power_work; /* delayed task for powerdown */
 373         unsigned long power_on_acct;
 374         unsigned long power_off_acct;
 375         unsigned long power_jiffies;
 376         spinlock_t power_lock;
 377 #endif
 378
 379         /* filter the requested power state per nid */
 380         unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
 381                                      unsigned int power_state);
 382
 383         /* codec-specific additional proc output */
 384         void (*proc_widget_hook)(struct snd_info_buffer *buffer,
 385                                  struct hda_codec *codec, hda_nid_t nid);
 386
 387         /* jack detection */
 388         struct snd_array jacktbl;
 389         unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
 390         struct delayed_work jackpoll_work;
 391
 392 #ifdef CONFIG_SND_HDA_INPUT_JACK
 393         /* jack detection */
 394         struct snd_array jacks;
 395 #endif
 396
 397         int depop_delay; /* depop delay in ms, -1 for default delay time */
 398
 399         /* fix-up list */
 400         int fixup_id;
 401         const struct hda_fixup *fixup_list;
 402         const char *fixup_name;
 403
 404         /* additional init verbs */
 405         struct snd_array verbs;
 406 };
 407
 408 /* direction */
 409 enum {
 410         HDA_INPUT, HDA_OUTPUT
 411 };
 412
 413 /* snd_hda_codec_read/write optional flags */
 414 #define HDA_RW_NO_RESPONSE_FALLBACK     (1 << 0)
 415
 416 /*
 417  * constructors
 418  */
 419 int snd_hda_bus_new(struct snd_card *card, const struct hda_bus_template *temp,
 420                     struct hda_bus **busp);
 421 int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 422                       struct hda_codec **codecp);
 423 int snd_hda_codec_configure(struct hda_codec *codec);
 424 int snd_hda_codec_update_widgets(struct hda_codec *codec);
 425
 426 /*
 427  * low level functions
 428  */
 429 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 430                                 int flags,
 431                                 unsigned int verb, unsigned int parm);
 432 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
 433                         unsigned int verb, unsigned int parm);
 434 #define snd_hda_param_read(codec, nid, param) \
 435         snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
 436 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 437                           hda_nid_t *start_id);
 438 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 439                             hda_nid_t *conn_list, int max_conns);
 440 static inline int
 441 snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
 442 {
 443         return snd_hda_get_connections(codec, nid, NULL, 0);
 444 }
 445 int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
 446 int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
 447                             hda_nid_t *conn_list, int max_conns);
 448 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
 449                           const hda_nid_t **listp);
 450 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
 451                           const hda_nid_t *list);
 452 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
 453                            hda_nid_t nid, int recursive);
 454 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
 455                         u8 *dev_list, int max_devices);
 456 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 457                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
 458
 459 struct hda_verb {
 460         hda_nid_t nid;
 461         u32 verb;
 462         u32 param;
 463 };
 464
 465 void snd_hda_sequence_write(struct hda_codec *codec,
 466                             const struct hda_verb *seq);
 467
 468 /* unsolicited event */
 469 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
 470
 471 /* cached write */
 472 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 473                               int flags, unsigned int verb, unsigned int parm);
 474 void snd_hda_sequence_write_cache(struct hda_codec *codec,
 475                                   const struct hda_verb *seq);
 476 int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
 477                               int flags, unsigned int verb, unsigned int parm);
 478 void snd_hda_codec_resume_cache(struct hda_codec *codec);
 479 /* both for cmd & amp caches */
 480 void snd_hda_codec_flush_cache(struct hda_codec *codec);
 481
 482 /* the struct for codec->pin_configs */
 483 struct hda_pincfg {
 484         hda_nid_t nid;
 485         unsigned char ctrl;     /* original pin control value */
 486         unsigned char target;   /* target pin control value */
 487         unsigned int cfg;       /* default configuration */
 488 };
 489
 490 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
 491 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
 492                              unsigned int cfg);
 493 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
 494                        hda_nid_t nid, unsigned int cfg); /* for hwdep */
 495 void snd_hda_shutup_pins(struct hda_codec *codec);
 496
 497 /* SPDIF controls */
 498 struct hda_spdif_out {
 499         hda_nid_t nid;          /* Converter nid values relate to */
 500         unsigned int status;    /* IEC958 status bits */
 501         unsigned short ctls;    /* SPDIF control bits */
 502 };
 503 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
 504                                                hda_nid_t nid);
 505 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
 506 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
 507
 508 /*
 509  * Mixer
 510  */
 511 int snd_hda_build_controls(struct hda_bus *bus);
 512 int snd_hda_codec_build_controls(struct hda_codec *codec);
 513
 514 /*
 515  * PCM
 516  */
 517 int snd_hda_build_pcms(struct hda_bus *bus);
 518 int snd_hda_codec_build_pcms(struct hda_codec *codec);
 519
 520 int snd_hda_codec_prepare(struct hda_codec *codec,
 521                           struct hda_pcm_stream *hinfo,
 522                           unsigned int stream,
 523                           unsigned int format,
 524                           struct snd_pcm_substream *substream);
 525 void snd_hda_codec_cleanup(struct hda_codec *codec,
 526                            struct hda_pcm_stream *hinfo,
 527                            struct snd_pcm_substream *substream);
 528
 529 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 530                                 u32 stream_tag,
 531                                 int channel_id, int format);
 532 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
 533                                     int do_now);
 534 #define snd_hda_codec_cleanup_stream(codec, nid) \
 535         __snd_hda_codec_cleanup_stream(codec, nid, 0)
 536 unsigned int snd_hda_calc_stream_format(unsigned int rate,
 537                                         unsigned int channels,
 538                                         unsigned int format,
 539                                         unsigned int maxbps,
 540                                         unsigned short spdif_ctls);
 541 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
 542                                 unsigned int format);
 543
 544 extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
 545
 546 /*
 547  * Misc
 548  */
 549 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
 550 void snd_hda_bus_reboot_notify(struct hda_bus *bus);
 551 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 552                                     unsigned int power_state);
 553
 554 int snd_hda_lock_devices(struct hda_bus *bus);
 555 void snd_hda_unlock_devices(struct hda_bus *bus);
 556
 557 /*
 558  * power management
 559  */
 560 #ifdef CONFIG_PM
 561 int snd_hda_suspend(struct hda_bus *bus);
 562 int snd_hda_resume(struct hda_bus *bus);
 563 #endif
 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_save(struct hda_codec *codec, int delta, bool d3wait);
 587 void snd_hda_update_power_acct(struct hda_codec *codec);
 588 #else
 589 static inline void snd_hda_power_save(struct hda_codec *codec, int delta,
 590                                       bool d3wait) {}
 591 #endif
 592
 593 /**
 594  * snd_hda_power_up - Power-up the codec
 595  * @codec: HD-audio codec
 596  *
 597  * Increment the power-up counter and power up the hardware really when
 598  * not turned on yet.
 599  */
 600 static inline void snd_hda_power_up(struct hda_codec *codec)
 601 {
 602         snd_hda_power_save(codec, 1, false);
 603 }
 604
 605 /**
 606  * snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending
 607  *   D3 transition to complete.  This differs from snd_hda_power_up() when
 608  *   power_transition == -1.  snd_hda_power_up sees this case as a nop,
 609  *   snd_hda_power_up_d3wait waits for the D3 transition to complete then powers
 610  *   back up.
 611  * @codec: HD-audio codec
 612  *
 613  * Cancel any power down operation hapenning on the work queue, then power up.
 614  */
 615 static inline void snd_hda_power_up_d3wait(struct hda_codec *codec)
 616 {
 617         snd_hda_power_save(codec, 1, true);
 618 }
 619
 620 /**
 621  * snd_hda_power_down - Power-down the codec
 622  * @codec: HD-audio codec
 623  *
 624  * Decrement the power-up counter and schedules the power-off work if
 625  * the counter rearches to zero.
 626  */
 627 static inline void snd_hda_power_down(struct hda_codec *codec)
 628 {
 629         snd_hda_power_save(codec, -1, false);
 630 }
 631
 632 /**
 633  * snd_hda_power_sync - Synchronize the power-save status
 634  * @codec: HD-audio codec
 635  *
 636  * Synchronize the actual power state with the power account;
 637  * called when power_save parameter is changed
 638  */
 639 static inline void snd_hda_power_sync(struct hda_codec *codec)
 640 {
 641         snd_hda_power_save(codec, 0, false);
 642 }
 643
 644 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 645 /*
 646  * patch firmware
 647  */
 648 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
 649 #endif
 650
 651 #ifdef CONFIG_SND_HDA_DSP_LOADER
 652 static inline int
 653 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 654                                 unsigned int size,
 655                                 struct snd_dma_buffer *bufp)
 656 {
 657         return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
 658 }
 659 static inline void
 660 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
 661 {
 662         return codec->bus->ops.load_dsp_trigger(codec->bus, start);
 663 }
 664 static inline void
 665 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 666                                 struct snd_dma_buffer *dmab)
 667 {
 668         return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
 669 }
 670 #else
 671 static inline int
 672 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 673                                 unsigned int size,
 674                                 struct snd_dma_buffer *bufp)
 675 {
 676         return -ENOSYS;
 677 }
 678 static inline void
 679 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
 680 static inline void
 681 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 682                                 struct snd_dma_buffer *dmab) {}
 683 #endif
 684
 685 #define EXPORT_SYMBOL_HDA(sym) EXPORT_SYMBOL_GPL(sym)
 686
 687 #endif /* __SOUND_HDA_CODEC_H */