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 /* unsolicited event handler */
 102 #define HDA_UNSOL_QUEUE_SIZE    64
 103 struct hda_bus_unsolicited {
 104         /* ring buffer */
 105         u32 queue[HDA_UNSOL_QUEUE_SIZE * 2];
 106         unsigned int rp, wp;
 107         /* workqueue */
 108         struct work_struct work;
 109 };
 110
 111 /*
 112  * codec bus
 113  *
 114  * each controller needs to creata a hda_bus to assign the accessor.
 115  * A hda_bus contains several codecs in the list codec_list.
 116  */
 117 struct hda_bus {
 118         struct snd_card *card;
 119
 120         void *private_data;
 121         struct pci_dev *pci;
 122         const char *modelname;
 123         struct hda_bus_ops ops;
 124
 125         /* codec linked list */
 126         struct list_head codec_list;
 127         unsigned int num_codecs;
 128         /* link caddr -> codec */
 129         struct hda_codec *caddr_tbl[HDA_MAX_CODEC_ADDRESS + 1];
 130
 131         struct mutex cmd_mutex;
 132         struct mutex prepare_mutex;
 133
 134         /* unsolicited event queue */
 135         struct hda_bus_unsolicited unsol;
 136
 137         /* assigned PCMs */
 138         DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES);
 139
 140         /* misc op flags */
 141         unsigned int needs_damn_long_delay :1;
 142         unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */
 143         unsigned int sync_write:1;      /* sync after verb write */
 144         /* status for codec/controller */
 145         unsigned int shutdown :1;       /* being unloaded */
 146         unsigned int rirb_error:1;      /* error in codec communication */
 147         unsigned int response_reset:1;  /* controller was reset */
 148         unsigned int in_reset:1;        /* during reset operation */
 149         unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
 150
 151         int primary_dig_out_type;       /* primary digital out PCM type */
 152         unsigned long codec_powered;    /* bit flags of powered codecs */
 153 };
 154
 155 /*
 156  * codec preset
 157  *
 158  * Known codecs have the patch to build and set up the controls/PCMs
 159  * better than the generic parser.
 160  */
 161 struct hda_codec_preset {
 162         unsigned int id;
 163         unsigned int mask;
 164         unsigned int subs;
 165         unsigned int subs_mask;
 166         unsigned int rev;
 167         hda_nid_t afg, mfg;
 168         const char *name;
 169         int (*patch)(struct hda_codec *codec);
 170 };
 171
 172 #define HDA_CODEC_ID_GENERIC_HDMI       0x00000101
 173 #define HDA_CODEC_ID_GENERIC            0x00000201
 174
 175 struct hda_codec_driver {
 176         struct hdac_driver core;
 177         const struct hda_codec_preset *preset;
 178 };
 179
 180 int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name,
 181                                struct module *owner);
 182 #define hda_codec_driver_register(drv) \
 183         __hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE)
 184 void hda_codec_driver_unregister(struct hda_codec_driver *drv);
 185 #define module_hda_codec_driver(drv) \
 186         module_driver(drv, hda_codec_driver_register, \
 187                       hda_codec_driver_unregister)
 188
 189 /* ops set by the preset patch */
 190 struct hda_codec_ops {
 191         int (*build_controls)(struct hda_codec *codec);
 192         int (*build_pcms)(struct hda_codec *codec);
 193         int (*init)(struct hda_codec *codec);
 194         void (*free)(struct hda_codec *codec);
 195         void (*unsol_event)(struct hda_codec *codec, unsigned int res);
 196         void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg,
 197                                 unsigned int power_state);
 198 #ifdef CONFIG_PM
 199         int (*suspend)(struct hda_codec *codec);
 200         int (*resume)(struct hda_codec *codec);
 201         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
 202 #endif
 203         void (*reboot_notify)(struct hda_codec *codec);
 204         void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on);
 205 };
 206
 207 /* record for amp information cache */
 208 struct hda_cache_head {
 209         u32 key:31;             /* hash key */
 210         u32 dirty:1;
 211         u16 val;                /* assigned value */
 212         u16 next;
 213 };
 214
 215 struct hda_amp_info {
 216         struct hda_cache_head head;
 217         u32 amp_caps;           /* amp capabilities */
 218         u16 vol[2];             /* current volume & mute */
 219 };
 220
 221 struct hda_cache_rec {
 222         u16 hash[64];                   /* hash table for index */
 223         struct snd_array buf;           /* record entries */
 224 };
 225
 226 /* PCM callbacks */
 227 struct hda_pcm_ops {
 228         int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec,
 229                     struct snd_pcm_substream *substream);
 230         int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec,
 231                      struct snd_pcm_substream *substream);
 232         int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec,
 233                        unsigned int stream_tag, unsigned int format,
 234                        struct snd_pcm_substream *substream);
 235         int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec,
 236                        struct snd_pcm_substream *substream);
 237         unsigned int (*get_delay)(struct hda_pcm_stream *info,
 238                                   struct hda_codec *codec,
 239                                   struct snd_pcm_substream *substream);
 240 };
 241
 242 /* PCM information for each substream */
 243 struct hda_pcm_stream {
 244         unsigned int substreams;        /* number of substreams, 0 = not exist*/
 245         unsigned int channels_min;      /* min. number of channels */
 246         unsigned int channels_max;      /* max. number of channels */
 247         hda_nid_t nid;  /* default NID to query rates/formats/bps, or set up */
 248         u32 rates;      /* supported rates */
 249         u64 formats;    /* supported formats (SNDRV_PCM_FMTBIT_) */
 250         unsigned int maxbps;    /* supported max. bit per sample */
 251         const struct snd_pcm_chmap_elem *chmap; /* chmap to override */
 252         struct hda_pcm_ops ops;
 253 };
 254
 255 /* PCM types */
 256 enum {
 257         HDA_PCM_TYPE_AUDIO,
 258         HDA_PCM_TYPE_SPDIF,
 259         HDA_PCM_TYPE_HDMI,
 260         HDA_PCM_TYPE_MODEM,
 261         HDA_PCM_NTYPES
 262 };
 263
 264 /* for PCM creation */
 265 struct hda_pcm {
 266         char *name;
 267         struct hda_pcm_stream stream[2];
 268         unsigned int pcm_type;  /* HDA_PCM_TYPE_XXX */
 269         int device;             /* device number to assign */
 270         struct snd_pcm *pcm;    /* assigned PCM instance */
 271         bool own_chmap;         /* codec driver provides own channel maps */
 272         /* private: */
 273         struct hda_codec *codec;
 274         struct kref kref;
 275         struct list_head list;
 276 };
 277
 278 /* codec information */
 279 struct hda_codec {
 280         struct hdac_device core;
 281         struct hda_bus *bus;
 282         struct snd_card *card;
 283         unsigned int addr;      /* codec addr*/
 284         struct list_head list;  /* list point */
 285
 286         hda_nid_t afg;  /* AFG node id */
 287         hda_nid_t mfg;  /* MFG node id */
 288
 289         /* ids */
 290         u8 afg_function_id;
 291         u8 mfg_function_id;
 292         u8 afg_unsol;
 293         u8 mfg_unsol;
 294         u32 vendor_id;
 295         u32 subsystem_id;
 296         u32 revision_id;
 297         u32 probe_id; /* overridden id for probing */
 298
 299         /* detected preset */
 300         const struct hda_codec_preset *preset;
 301         const char *vendor_name;        /* codec vendor name */
 302         const char *chip_name;          /* codec chip name */
 303         const char *modelname;  /* model name for preset */
 304
 305         /* set by patch */
 306         struct hda_codec_ops patch_ops;
 307
 308         /* PCM to create, set by patch_ops.build_pcms callback */
 309         struct list_head pcm_list_head;
 310
 311         /* codec specific info */
 312         void *spec;
 313
 314         /* beep device */
 315         struct hda_beep *beep;
 316         unsigned int beep_mode;
 317
 318         /* widget capabilities cache */
 319         unsigned int num_nodes;
 320         hda_nid_t start_nid;
 321         u32 *wcaps;
 322
 323         struct snd_array mixers;        /* list of assigned mixer elements */
 324         struct snd_array nids;          /* list of mapped mixer elements */
 325
 326         struct hda_cache_rec amp_cache; /* cache for amp access */
 327         struct hda_cache_rec cmd_cache; /* cache for other commands */
 328
 329         struct list_head conn_list;     /* linked-list of connection-list */
 330
 331         struct mutex spdif_mutex;
 332         struct mutex control_mutex;
 333         struct mutex hash_mutex;
 334         struct snd_array spdif_out;
 335         unsigned int spdif_in_enable;   /* SPDIF input enable? */
 336         const hda_nid_t *slave_dig_outs; /* optional digital out slave widgets */
 337         struct snd_array init_pins;     /* initial (BIOS) pin configurations */
 338         struct snd_array driver_pins;   /* pin configs set by codec parser */
 339         struct snd_array cvt_setups;    /* audio convert setups */
 340
 341         struct mutex user_mutex;
 342 #ifdef CONFIG_SND_HDA_RECONFIG
 343         struct snd_array init_verbs;    /* additional init verbs */
 344         struct snd_array hints;         /* additional hints */
 345         struct snd_array user_pins;     /* default pin configs to override */
 346 #endif
 347
 348 #ifdef CONFIG_SND_HDA_HWDEP
 349         struct snd_hwdep *hwdep;        /* assigned hwdep device */
 350 #endif
 351
 352         /* misc flags */
 353         unsigned int in_freeing:1; /* being released */
 354         unsigned int spdif_status_reset :1; /* needs to toggle SPDIF for each
 355                                              * status change
 356                                              * (e.g. Realtek codecs)
 357                                              */
 358         unsigned int pin_amp_workaround:1; /* pin out-amp takes index
 359                                             * (e.g. Conexant codecs)
 360                                             */
 361         unsigned int single_adc_amp:1; /* adc in-amp takes no index
 362                                         * (e.g. CX20549 codec)
 363                                         */
 364         unsigned int no_sticky_stream:1; /* no sticky-PCM stream assignment */
 365         unsigned int pins_shutup:1;     /* pins are shut up */
 366         unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */
 367         unsigned int no_jack_detect:1;  /* Machine has no jack-detection */
 368         unsigned int inv_eapd:1; /* broken h/w: inverted EAPD control */
 369         unsigned int inv_jack_detect:1; /* broken h/w: inverted detection bit */
 370         unsigned int pcm_format_first:1; /* PCM format must be set first */
 371         unsigned int epss:1;            /* supporting EPSS? */
 372         unsigned int cached_write:1;    /* write only to caches */
 373         unsigned int dp_mst:1; /* support DP1.2 Multi-stream transport */
 374         unsigned int dump_coef:1; /* dump processing coefs in codec proc file */
 375         unsigned int power_save_node:1; /* advanced PM for each widget */
 376 #ifdef CONFIG_PM
 377         unsigned int d3_stop_clk:1;     /* support D3 operation without BCLK */
 378         atomic_t in_pm;         /* suspend/resume being performed */
 379         unsigned long power_on_acct;
 380         unsigned long power_off_acct;
 381         unsigned long power_jiffies;
 382 #endif
 383
 384         /* filter the requested power state per nid */
 385         unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid,
 386                                      unsigned int power_state);
 387
 388         /* codec-specific additional proc output */
 389         void (*proc_widget_hook)(struct snd_info_buffer *buffer,
 390                                  struct hda_codec *codec, hda_nid_t nid);
 391
 392         /* jack detection */
 393         struct snd_array jacktbl;
 394         unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */
 395         struct delayed_work jackpoll_work;
 396
 397 #ifdef CONFIG_SND_HDA_INPUT_JACK
 398         /* jack detection */
 399         struct snd_array jacks;
 400 #endif
 401
 402         int depop_delay; /* depop delay in ms, -1 for default delay time */
 403
 404         /* fix-up list */
 405         int fixup_id;
 406         const struct hda_fixup *fixup_list;
 407         const char *fixup_name;
 408
 409         /* additional init verbs */
 410         struct snd_array verbs;
 411 };
 412
 413 #define dev_to_hda_codec(_dev)  container_of(_dev, struct hda_codec, core.dev)
 414 #define hda_codec_dev(_dev)     (&(_dev)->core.dev)
 415
 416 /* direction */
 417 enum {
 418         HDA_INPUT, HDA_OUTPUT
 419 };
 420
 421 /* snd_hda_codec_read/write optional flags */
 422 #define HDA_RW_NO_RESPONSE_FALLBACK     (1 << 0)
 423
 424 /*
 425  * constructors
 426  */
 427 int snd_hda_bus_new(struct snd_card *card, struct hda_bus **busp);
 428 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card,
 429                       unsigned int codec_addr, struct hda_codec **codecp);
 430 int snd_hda_codec_configure(struct hda_codec *codec);
 431 int snd_hda_codec_update_widgets(struct hda_codec *codec);
 432
 433 /*
 434  * low level functions
 435  */
 436 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
 437                                 int flags,
 438                                 unsigned int verb, unsigned int parm);
 439 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags,
 440                         unsigned int verb, unsigned int parm);
 441 #define snd_hda_param_read(codec, nid, param) \
 442         snd_hda_codec_read(codec, nid, 0, AC_VERB_PARAMETERS, param)
 443 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 444                           hda_nid_t *start_id);
 445 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 446                             hda_nid_t *conn_list, int max_conns);
 447 static inline int
 448 snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid)
 449 {
 450         return snd_hda_get_connections(codec, nid, NULL, 0);
 451 }
 452 int snd_hda_get_num_raw_conns(struct hda_codec *codec, hda_nid_t nid);
 453 int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
 454                             hda_nid_t *conn_list, int max_conns);
 455 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid,
 456                           const hda_nid_t **listp);
 457 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums,
 458                           const hda_nid_t *list);
 459 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux,
 460                            hda_nid_t nid, int recursive);
 461 int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid,
 462                         u8 *dev_list, int max_devices);
 463 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
 464                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp);
 465
 466 struct hda_verb {
 467         hda_nid_t nid;
 468         u32 verb;
 469         u32 param;
 470 };
 471
 472 void snd_hda_sequence_write(struct hda_codec *codec,
 473                             const struct hda_verb *seq);
 474
 475 /* unsolicited event */
 476 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex);
 477
 478 /* cached write */
 479 int snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid,
 480                               int flags, unsigned int verb, unsigned int parm);
 481 void snd_hda_sequence_write_cache(struct hda_codec *codec,
 482                                   const struct hda_verb *seq);
 483 int snd_hda_codec_update_cache(struct hda_codec *codec, hda_nid_t nid,
 484                               int flags, unsigned int verb, unsigned int parm);
 485 void snd_hda_codec_resume_cache(struct hda_codec *codec);
 486 /* both for cmd & amp caches */
 487 void snd_hda_codec_flush_cache(struct hda_codec *codec);
 488
 489 /* the struct for codec->pin_configs */
 490 struct hda_pincfg {
 491         hda_nid_t nid;
 492         unsigned char ctrl;     /* original pin control value */
 493         unsigned char target;   /* target pin control value */
 494         unsigned int cfg;       /* default configuration */
 495 };
 496
 497 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid);
 498 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid,
 499                              unsigned int cfg);
 500 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list,
 501                        hda_nid_t nid, unsigned int cfg); /* for hwdep */
 502 void snd_hda_shutup_pins(struct hda_codec *codec);
 503
 504 /* SPDIF controls */
 505 struct hda_spdif_out {
 506         hda_nid_t nid;          /* Converter nid values relate to */
 507         unsigned int status;    /* IEC958 status bits */
 508         unsigned short ctls;    /* SPDIF control bits */
 509 };
 510 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
 511                                                hda_nid_t nid);
 512 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
 513 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
 514
 515 /*
 516  * Mixer
 517  */
 518 int snd_hda_codec_build_controls(struct hda_codec *codec);
 519
 520 /*
 521  * PCM
 522  */
 523 int snd_hda_codec_parse_pcms(struct hda_codec *codec);
 524 int snd_hda_codec_build_pcms(struct hda_codec *codec);
 525
 526 __printf(2, 3)
 527 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec,
 528                                       const char *fmt, ...);
 529
 530 static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm)
 531 {
 532         kref_get(&pcm->kref);
 533 }
 534 void snd_hda_codec_pcm_put(struct hda_pcm *pcm);
 535
 536 int snd_hda_codec_prepare(struct hda_codec *codec,
 537                           struct hda_pcm_stream *hinfo,
 538                           unsigned int stream,
 539                           unsigned int format,
 540                           struct snd_pcm_substream *substream);
 541 void snd_hda_codec_cleanup(struct hda_codec *codec,
 542                            struct hda_pcm_stream *hinfo,
 543                            struct snd_pcm_substream *substream);
 544
 545 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 546                                 u32 stream_tag,
 547                                 int channel_id, int format);
 548 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid,
 549                                     int do_now);
 550 #define snd_hda_codec_cleanup_stream(codec, nid) \
 551         __snd_hda_codec_cleanup_stream(codec, nid, 0)
 552 unsigned int snd_hda_calc_stream_format(struct hda_codec *codec,
 553                                         unsigned int rate,
 554                                         unsigned int channels,
 555                                         unsigned int format,
 556                                         unsigned int maxbps,
 557                                         unsigned short spdif_ctls);
 558 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
 559                                 unsigned int format);
 560
 561 extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[];
 562
 563 /*
 564  * Misc
 565  */
 566 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
 567 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg,
 568                                     unsigned int power_state);
 569
 570 int snd_hda_lock_devices(struct hda_bus *bus);
 571 void snd_hda_unlock_devices(struct hda_bus *bus);
 572 void snd_hda_bus_reset(struct hda_bus *bus);
 573
 574 /*
 575  * power management
 576  */
 577 extern const struct dev_pm_ops hda_codec_driver_pm;
 578
 579 static inline
 580 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
 581 {
 582 #ifdef CONFIG_PM
 583         if (codec->patch_ops.check_power_status)
 584                 return codec->patch_ops.check_power_status(codec, nid);
 585 #endif
 586         return 0;
 587 }
 588
 589 /*
 590  * get widget information
 591  */
 592 const char *snd_hda_get_jack_connectivity(u32 cfg);
 593 const char *snd_hda_get_jack_type(u32 cfg);
 594 const char *snd_hda_get_jack_location(u32 cfg);
 595
 596 /*
 597  * power saving
 598  */
 599 #ifdef CONFIG_PM
 600 void snd_hda_power_up(struct hda_codec *codec);
 601 void snd_hda_power_down(struct hda_codec *codec);
 602 void snd_hda_set_power_save(struct hda_bus *bus, int delay);
 603 void snd_hda_update_power_acct(struct hda_codec *codec);
 604 #else
 605 static inline void snd_hda_power_up(struct hda_codec *codec) {}
 606 static inline void snd_hda_power_down(struct hda_codec *codec) {}
 607 static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
 608 #endif
 609
 610 #ifdef CONFIG_SND_HDA_PATCH_LOADER
 611 /*
 612  * patch firmware
 613  */
 614 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf);
 615 #endif
 616
 617 #ifdef CONFIG_SND_HDA_DSP_LOADER
 618 static inline int
 619 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 620                                 unsigned int size,
 621                                 struct snd_dma_buffer *bufp)
 622 {
 623         return codec->bus->ops.load_dsp_prepare(codec->bus, format, size, bufp);
 624 }
 625 static inline void
 626 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start)
 627 {
 628         return codec->bus->ops.load_dsp_trigger(codec->bus, start);
 629 }
 630 static inline void
 631 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 632                                 struct snd_dma_buffer *dmab)
 633 {
 634         return codec->bus->ops.load_dsp_cleanup(codec->bus, dmab);
 635 }
 636 #else
 637 static inline int
 638 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format,
 639                                 unsigned int size,
 640                                 struct snd_dma_buffer *bufp)
 641 {
 642         return -ENOSYS;
 643 }
 644 static inline void
 645 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {}
 646 static inline void
 647 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec,
 648                                 struct snd_dma_buffer *dmab) {}
 649 #endif
 650
 651 #endif /* __SOUND_HDA_CODEC_H */