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/device-id/hda.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 struct hda_jack_tbl; 32 33 /* 34 * codec bus 35 * 36 * each controller needs to creata a hda_bus to assign the accessor. 37 * A hda_bus contains several codecs in the list codec_list. 38 */ 39 struct hda_bus { 40 struct hdac_bus core; 41 42 struct snd_card *card; 43 44 struct pci_dev *pci; 45 const char *modelname; 46 47 struct mutex prepare_mutex; 48 49 /* assigned PCMs */ 50 DECLARE_BITMAP(pcm_dev_bits, SNDRV_PCM_DEVICES); 51 52 /* misc op flags */ 53 unsigned int allow_bus_reset:1; /* allow bus reset at fatal error */ 54 /* status for codec/controller */ 55 unsigned int shutdown :1; /* being unloaded */ 56 unsigned int response_reset:1; /* controller was reset */ 57 unsigned int in_reset:1; /* during reset operation */ 58 unsigned int no_response_fallback:1; /* don't fallback at RIRB error */ 59 unsigned int bus_probing :1; /* during probing process */ 60 unsigned int keep_power:1; /* keep power up for notification */ 61 unsigned int jackpoll_in_suspend:1; /* keep jack polling during 62 * runtime suspend 63 */ 64 65 int primary_dig_out_type; /* primary digital out PCM type */ 66 unsigned int mixer_assigned; /* codec addr for mixer name */ 67 }; 68 69 /* from hdac_bus to hda_bus */ 70 #define to_hda_bus(bus) container_of(bus, struct hda_bus, core) 71 72 /* 73 * codec preset 74 */ 75 76 #define HDA_CODEC_ID_SKIP_PROBE 0x00000001 77 #define HDA_CODEC_ID_GENERIC_HDMI 0x00000101 78 #define HDA_CODEC_ID_GENERIC 0x00000201 79 80 #define HDA_CODEC_ID_REV_MODEL(_vid, _rev, _name, _model) \ 81 { .vendor_id = (_vid), .rev_id = (_rev), .name = (_name), \ 82 .api_version = HDA_DEV_LEGACY, .driver_data = (_model) } 83 #define HDA_CODEC_ID_MODEL(_vid, _name, _model) \ 84 HDA_CODEC_ID_REV_MODEL(_vid, 0, _name, _model) 85 #define HDA_CODEC_ID_REV(_vid, _rev, _name) \ 86 HDA_CODEC_ID_REV_MODEL(_vid, _rev, _name, 0) 87 #define HDA_CODEC_ID(_vid, _name) \ 88 HDA_CODEC_ID_REV(_vid, 0, _name) 89 90 struct hda_codec_driver { 91 struct hdac_driver core; 92 const struct hda_device_id *id; 93 const struct hda_codec_ops *ops; 94 }; 95 96 #define hda_codec_to_driver(codec) \ 97 container_of((codec)->core.dev.driver, struct hda_codec_driver, core.driver) 98 99 int __hda_codec_driver_register(struct hda_codec_driver *drv, const char *name, 100 struct module *owner); 101 #define hda_codec_driver_register(drv) \ 102 __hda_codec_driver_register(drv, KBUILD_MODNAME, THIS_MODULE) 103 void hda_codec_driver_unregister(struct hda_codec_driver *drv); 104 #define module_hda_codec_driver(drv) \ 105 module_driver(drv, hda_codec_driver_register, \ 106 hda_codec_driver_unregister) 107 108 /* ops for hda codec driver */ 109 struct hda_codec_ops { 110 int (*probe)(struct hda_codec *codec, const struct hda_device_id *id); 111 void (*remove)(struct hda_codec *codec); 112 int (*build_controls)(struct hda_codec *codec); 113 int (*build_pcms)(struct hda_codec *codec); 114 int (*init)(struct hda_codec *codec); 115 void (*unsol_event)(struct hda_codec *codec, unsigned int res); 116 void (*set_power_state)(struct hda_codec *codec, hda_nid_t fg, 117 unsigned int power_state); 118 int (*suspend)(struct hda_codec *codec); 119 int (*resume)(struct hda_codec *codec); 120 int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid); 121 void (*stream_pm)(struct hda_codec *codec, hda_nid_t nid, bool on); 122 }; 123 124 /* PCM callbacks */ 125 struct hda_pcm_ops { 126 int (*open)(struct hda_pcm_stream *info, struct hda_codec *codec, 127 struct snd_pcm_substream *substream); 128 int (*close)(struct hda_pcm_stream *info, struct hda_codec *codec, 129 struct snd_pcm_substream *substream); 130 int (*prepare)(struct hda_pcm_stream *info, struct hda_codec *codec, 131 unsigned int stream_tag, unsigned int format, 132 struct snd_pcm_substream *substream); 133 int (*cleanup)(struct hda_pcm_stream *info, struct hda_codec *codec, 134 struct snd_pcm_substream *substream); 135 unsigned int (*get_delay)(struct hda_pcm_stream *info, 136 struct hda_codec *codec, 137 struct snd_pcm_substream *substream); 138 }; 139 140 /* PCM information for each substream */ 141 struct hda_pcm_stream { 142 unsigned int substreams; /* number of substreams, 0 = not exist*/ 143 unsigned int channels_min; /* min. number of channels */ 144 unsigned int channels_max; /* max. number of channels */ 145 hda_nid_t nid; /* default NID to query rates/formats/bps, or set up */ 146 u32 rates; /* supported rates */ 147 u64 formats; /* supported formats (SNDRV_PCM_FMTBIT_) */ 148 u32 subformats; /* for S32_LE format, SNDRV_PCM_SUBFMTBIT_* */ 149 unsigned int maxbps; /* supported max. bit per sample */ 150 const struct snd_pcm_chmap_elem *chmap; /* chmap to override */ 151 struct hda_pcm_ops ops; 152 }; 153 154 /* PCM types */ 155 enum { 156 HDA_PCM_TYPE_AUDIO, 157 HDA_PCM_TYPE_SPDIF, 158 HDA_PCM_TYPE_HDMI, 159 HDA_PCM_TYPE_MODEM, 160 HDA_PCM_NTYPES 161 }; 162 163 #define SNDRV_PCM_INVALID_DEVICE (-1) 164 /* for PCM creation */ 165 struct hda_pcm { 166 char *name; 167 struct hda_pcm_stream stream[2]; 168 unsigned int pcm_type; /* HDA_PCM_TYPE_XXX */ 169 int device; /* device number to assign */ 170 struct snd_pcm *pcm; /* assigned PCM instance */ 171 bool own_chmap; /* codec driver provides own channel maps */ 172 /* private: */ 173 struct hda_codec *codec; 174 struct list_head list; 175 unsigned int disconnected:1; 176 }; 177 178 /* codec information */ 179 struct hda_codec { 180 struct hdac_device core; 181 struct hda_bus *bus; 182 struct snd_card *card; 183 unsigned int addr; /* codec addr*/ 184 u32 probe_id; /* overridden id for probing */ 185 186 /* detected preset */ 187 const struct hda_device_id *preset; 188 const char *modelname; /* model name for preset */ 189 190 /* PCM to create, set by hda_codec_ops.build_pcms callback */ 191 struct list_head pcm_list_head; 192 struct snd_refcount pcm_ref; 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 acomp_requested_resume:1; /* resume requested by acomp */ 261 unsigned int no_stream_clean_at_suspend:1; /* do not clean streams at suspend */ 262 unsigned int ctl_dev_id:1; /* old control element id build behaviour */ 263 unsigned int eld_jack_detect:1; /* Machine jack-detection by ELD */ 264 265 unsigned long power_on_acct; 266 unsigned long power_off_acct; 267 unsigned long power_jiffies; 268 269 /* filter the requested power state per nid */ 270 unsigned int (*power_filter)(struct hda_codec *codec, hda_nid_t nid, 271 unsigned int power_state); 272 273 /* codec-specific additional proc output */ 274 void (*proc_widget_hook)(struct snd_info_buffer *buffer, 275 struct hda_codec *codec, hda_nid_t nid); 276 277 /* jack detection */ 278 struct hda_jack_tbl *jacktbl, *jacktbl_last; /* linked list head/tail */ 279 int jacktbl_used; /* number of jacktbl elements */ 280 unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */ 281 struct delayed_work jackpoll_work; 282 283 int depop_delay; /* depop delay in ms, -1 for default delay time */ 284 285 /* fix-up list */ 286 int fixup_id; 287 const struct hda_fixup *fixup_list; 288 const char *fixup_name; 289 290 /* additional init verbs */ 291 struct snd_array verbs; 292 }; 293 294 #define dev_to_hda_codec(_dev) container_of(_dev, struct hda_codec, core.dev) 295 #define hda_codec_dev(_dev) (&(_dev)->core.dev) 296 297 #define hdac_to_hda_codec(_hdac) container_of(_hdac, struct hda_codec, core) 298 299 #define list_for_each_codec(c, bus) \ 300 list_for_each_entry(c, &(bus)->core.codec_list, core.list) 301 #define list_for_each_codec_safe(c, n, bus) \ 302 list_for_each_entry_safe(c, n, &(bus)->core.codec_list, core.list) 303 304 /* snd_hda_codec_read/write optional flags */ 305 #define HDA_RW_NO_RESPONSE_FALLBACK (1 << 0) 306 307 /* 308 * constructors 309 */ 310 __printf(3, 4) struct hda_codec * 311 snd_hda_codec_device_init(struct hda_bus *bus, unsigned int codec_addr, 312 const char *fmt, ...); 313 int snd_hda_codec_new(struct hda_bus *bus, struct snd_card *card, 314 unsigned int codec_addr, struct hda_codec **codecp); 315 int snd_hda_codec_device_new(struct hda_bus *bus, struct snd_card *card, 316 unsigned int codec_addr, struct hda_codec *codec, 317 bool snddev_managed); 318 int snd_hda_codec_configure(struct hda_codec *codec); 319 int snd_hda_codec_update_widgets(struct hda_codec *codec); 320 void snd_hda_codec_register(struct hda_codec *codec); 321 void snd_hda_codec_unregister(struct hda_codec *codec); 322 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec); 323 324 /* 325 * low level functions 326 */ 327 static inline unsigned int 328 snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid, 329 int flags, 330 unsigned int verb, unsigned int parm) 331 { 332 return snd_hdac_codec_read(&codec->core, nid, flags, verb, parm); 333 } 334 335 static inline int 336 snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags, 337 unsigned int verb, unsigned int parm) 338 { 339 return snd_hdac_codec_write(&codec->core, nid, flags, verb, parm); 340 } 341 342 /* sync after write */ 343 static inline int 344 snd_hda_codec_write_sync(struct hda_codec *codec, hda_nid_t nid, int flags, 345 unsigned int verb, unsigned int parm) 346 { 347 /* use snd_hda_codec_read() for writing; 348 * the returned value is usually discarded 349 */ 350 return snd_hdac_codec_read(&codec->core, nid, flags, verb, parm); 351 } 352 353 #define snd_hda_param_read(codec, nid, param) \ 354 snd_hdac_read_parm(&(codec)->core, nid, param) 355 #define snd_hda_get_sub_nodes(codec, nid, start_nid) \ 356 snd_hdac_get_sub_nodes(&(codec)->core, nid, start_nid) 357 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid, 358 hda_nid_t *conn_list, int max_conns); 359 static inline int 360 snd_hda_get_num_conns(struct hda_codec *codec, hda_nid_t nid) 361 { 362 return snd_hda_get_connections(codec, nid, NULL, 0); 363 } 364 365 #define snd_hda_get_raw_connections(codec, nid, list, max_conns) \ 366 snd_hdac_get_connections(&(codec)->core, nid, list, max_conns) 367 #define snd_hda_get_num_raw_conns(codec, nid) \ 368 snd_hdac_get_connections(&(codec)->core, nid, NULL, 0) 369 370 int snd_hda_get_conn_list(struct hda_codec *codec, hda_nid_t nid, 371 const hda_nid_t **listp); 372 int snd_hda_override_conn_list(struct hda_codec *codec, hda_nid_t nid, int nums, 373 const hda_nid_t *list); 374 int snd_hda_get_conn_index(struct hda_codec *codec, hda_nid_t mux, 375 hda_nid_t nid, int recursive); 376 unsigned int snd_hda_get_num_devices(struct hda_codec *codec, hda_nid_t nid); 377 unsigned int snd_hda_get_devices(struct hda_codec *codec, hda_nid_t nid, 378 u8 *dev_list, unsigned int max_devices); 379 int snd_hda_get_dev_select(struct hda_codec *codec, hda_nid_t nid); 380 int snd_hda_set_dev_select(struct hda_codec *codec, hda_nid_t nid, int dev_id); 381 382 struct hda_verb { 383 hda_nid_t nid; 384 u32 verb; 385 u32 param; 386 }; 387 388 void snd_hda_sequence_write(struct hda_codec *codec, 389 const struct hda_verb *seq); 390 391 /* cached write */ 392 static inline int 393 snd_hda_codec_write_cache(struct hda_codec *codec, hda_nid_t nid, 394 int flags, unsigned int verb, unsigned int parm) 395 { 396 return snd_hdac_regmap_write(&codec->core, nid, verb, parm); 397 } 398 399 /* the struct for codec->pin_configs */ 400 struct hda_pincfg { 401 hda_nid_t nid; 402 unsigned char ctrl; /* original pin control value */ 403 unsigned char target; /* target pin control value */ 404 unsigned int cfg; /* default configuration */ 405 }; 406 407 unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid); 408 int snd_hda_codec_set_pincfg(struct hda_codec *codec, hda_nid_t nid, 409 unsigned int cfg); 410 int snd_hda_add_pincfg(struct hda_codec *codec, struct snd_array *list, 411 hda_nid_t nid, unsigned int cfg); /* for hwdep */ 412 void snd_hda_shutup_pins(struct hda_codec *codec); 413 414 /* SPDIF controls */ 415 struct hda_spdif_out { 416 hda_nid_t nid; /* Converter nid values relate to */ 417 unsigned int status; /* IEC958 status bits */ 418 unsigned short ctls; /* SPDIF control bits */ 419 }; 420 struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec, 421 hda_nid_t nid); 422 void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx); 423 void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid); 424 425 /* 426 * Mixer 427 */ 428 int snd_hda_codec_build_controls(struct hda_codec *codec); 429 430 /* 431 * PCM 432 */ 433 int snd_hda_codec_parse_pcms(struct hda_codec *codec); 434 int snd_hda_codec_build_pcms(struct hda_codec *codec); 435 436 __printf(2, 3) 437 struct hda_pcm *snd_hda_codec_pcm_new(struct hda_codec *codec, 438 const char *fmt, ...); 439 440 void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec); 441 442 static inline void snd_hda_codec_pcm_get(struct hda_pcm *pcm) 443 { 444 snd_refcount_get(&pcm->codec->pcm_ref); 445 } 446 static inline void snd_hda_codec_pcm_put(struct hda_pcm *pcm) 447 { 448 snd_refcount_put(&pcm->codec->pcm_ref); 449 } 450 451 int snd_hda_codec_prepare(struct hda_codec *codec, 452 struct hda_pcm_stream *hinfo, 453 unsigned int stream, 454 unsigned int format, 455 struct snd_pcm_substream *substream); 456 void snd_hda_codec_cleanup(struct hda_codec *codec, 457 struct hda_pcm_stream *hinfo, 458 struct snd_pcm_substream *substream); 459 460 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid, 461 u32 stream_tag, 462 int channel_id, int format); 463 void __snd_hda_codec_cleanup_stream(struct hda_codec *codec, hda_nid_t nid, 464 int do_now); 465 #define snd_hda_codec_cleanup_stream(codec, nid) \ 466 __snd_hda_codec_cleanup_stream(codec, nid, 0) 467 468 #define snd_hda_query_supported_pcm(codec, nid, ratesp, fmtsp, subfmtp, bpsp) \ 469 snd_hdac_query_supported_pcm(&(codec)->core, nid, ratesp, fmtsp, subfmtp, bpsp) 470 #define snd_hda_is_supported_format(codec, nid, fmt) \ 471 snd_hdac_is_supported_format(&(codec)->core, nid, fmt) 472 473 extern const struct snd_pcm_chmap_elem snd_pcm_2_1_chmaps[]; 474 475 int snd_hda_attach_pcm_stream(struct hda_bus *_bus, struct hda_codec *codec, 476 struct hda_pcm *cpcm); 477 478 /* 479 * Misc 480 */ 481 void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen); 482 void snd_hda_codec_set_power_to_all(struct hda_codec *codec, hda_nid_t fg, 483 unsigned int power_state); 484 485 int snd_hda_lock_devices(struct hda_bus *bus); 486 void snd_hda_unlock_devices(struct hda_bus *bus); 487 void snd_hda_bus_reset(struct hda_bus *bus); 488 void snd_hda_bus_reset_codecs(struct hda_bus *bus); 489 490 void snd_hda_codec_set_gpio(struct hda_codec *codec, unsigned int mask, 491 unsigned int dir, unsigned int data, 492 unsigned int delay); 493 494 int snd_hda_codec_set_name(struct hda_codec *codec, const char *name); 495 496 /* 497 * power management 498 */ 499 extern const struct dev_pm_ops hda_codec_driver_pm; 500 501 static inline 502 int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid) 503 { 504 struct hda_codec_driver *driver = hda_codec_to_driver(codec); 505 506 if (driver->ops && driver->ops->check_power_status) 507 return driver->ops->check_power_status(codec, nid); 508 return 0; 509 } 510 511 /* 512 * power saving 513 */ 514 #define snd_hda_power_up(codec) snd_hdac_power_up(&(codec)->core) 515 #define snd_hda_power_up_pm(codec) snd_hdac_power_up_pm(&(codec)->core) 516 #define snd_hda_power_down(codec) snd_hdac_power_down(&(codec)->core) 517 #define snd_hda_power_down_pm(codec) snd_hdac_power_down_pm(&(codec)->core) 518 void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay); 519 void snd_hda_set_power_save(struct hda_bus *bus, int delay); 520 void snd_hda_update_power_acct(struct hda_codec *codec); 521 522 static inline bool hda_codec_need_resume(struct hda_codec *codec) 523 { 524 return !codec->relaxed_resume && codec->jacktbl_used; 525 } 526 527 /* 528 * PM with auto-cleanup: call like CLASS(snd_hda_power, pm)(codec) 529 * If the error handling is needed, refer pm.err. 530 */ 531 struct __hda_power_obj { 532 struct hda_codec *codec; 533 int err; 534 }; 535 536 static inline struct __hda_power_obj __snd_hda_power_up(struct hda_codec *codec) 537 { 538 struct __hda_power_obj T = { .codec = codec }; 539 T.err = snd_hda_power_up(codec); 540 return T; 541 } 542 543 static inline struct __hda_power_obj __snd_hda_power_up_pm(struct hda_codec *codec) 544 { 545 struct __hda_power_obj T = { .codec = codec }; 546 T.err = snd_hda_power_up_pm(codec); 547 return T; 548 } 549 550 DEFINE_CLASS(snd_hda_power, struct __hda_power_obj, 551 snd_hda_power_down((_T).codec), __snd_hda_power_up(codec), 552 struct hda_codec *codec) 553 DEFINE_CLASS(snd_hda_power_pm, struct __hda_power_obj, 554 snd_hda_power_down_pm((_T).codec), __snd_hda_power_up_pm(codec), 555 struct hda_codec *codec) 556 557 #ifdef CONFIG_SND_HDA_PATCH_LOADER 558 /* 559 * patch firmware 560 */ 561 int snd_hda_load_patch(struct hda_bus *bus, size_t size, const void *buf); 562 #endif 563 564 #ifdef CONFIG_SND_HDA_DSP_LOADER 565 int snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format, 566 unsigned int size, 567 struct snd_dma_buffer *bufp); 568 void snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start); 569 void snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec, 570 struct snd_dma_buffer *dmab); 571 #else 572 static inline int 573 snd_hda_codec_load_dsp_prepare(struct hda_codec *codec, unsigned int format, 574 unsigned int size, 575 struct snd_dma_buffer *bufp) 576 { 577 return -ENOSYS; 578 } 579 static inline void 580 snd_hda_codec_load_dsp_trigger(struct hda_codec *codec, bool start) {} 581 static inline void 582 snd_hda_codec_load_dsp_cleanup(struct hda_codec *codec, 583 struct snd_dma_buffer *dmab) {} 584 #endif 585 586 #endif /* __SOUND_HDA_CODEC_H */ 587