include/sound/soc-component.h

   1 /* SPDX-License-Identifier: GPL-2.0
   2  *
   3  * soc-component.h
   4  *
   5  * Copyright (c) 2019 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   6  */
   7 #ifndef __SOC_COMPONENT_H
   8 #define __SOC_COMPONENT_H
   9
  10 #include <sound/soc.h>
  11
  12 /*
  13  * Component probe and remove ordering levels for components with runtime
  14  * dependencies.
  15  */
  16 #define SND_SOC_COMP_ORDER_FIRST        -2
  17 #define SND_SOC_COMP_ORDER_EARLY        -1
  18 #define SND_SOC_COMP_ORDER_NORMAL        0
  19 #define SND_SOC_COMP_ORDER_LATE          1
  20 #define SND_SOC_COMP_ORDER_LAST          2
  21
  22 #define for_each_comp_order(order)              \
  23         for (order  = SND_SOC_COMP_ORDER_FIRST; \
  24              order <= SND_SOC_COMP_ORDER_LAST;  \
  25              order++)
  26
  27 /* component interface */
  28 struct snd_compress_ops {
  29         int (*open)(struct snd_soc_component *component,
  30                     struct snd_compr_stream *stream);
  31         int (*free)(struct snd_soc_component *component,
  32                     struct snd_compr_stream *stream);
  33         int (*set_params)(struct snd_soc_component *component,
  34                           struct snd_compr_stream *stream,
  35                           struct snd_compr_params *params);
  36         int (*get_params)(struct snd_soc_component *component,
  37                           struct snd_compr_stream *stream,
  38                           struct snd_codec *params);
  39         int (*set_metadata)(struct snd_soc_component *component,
  40                             struct snd_compr_stream *stream,
  41                             struct snd_compr_metadata *metadata);
  42         int (*get_metadata)(struct snd_soc_component *component,
  43                             struct snd_compr_stream *stream,
  44                             struct snd_compr_metadata *metadata);
  45         int (*trigger)(struct snd_soc_component *component,
  46                        struct snd_compr_stream *stream, int cmd);
  47         int (*pointer)(struct snd_soc_component *component,
  48                        struct snd_compr_stream *stream,
  49                        struct snd_compr_tstamp *tstamp);
  50         int (*copy)(struct snd_soc_component *component,
  51                     struct snd_compr_stream *stream, char __user *buf,
  52                     size_t count);
  53         int (*mmap)(struct snd_soc_component *component,
  54                     struct snd_compr_stream *stream,
  55                     struct vm_area_struct *vma);
  56         int (*ack)(struct snd_soc_component *component,
  57                    struct snd_compr_stream *stream, size_t bytes);
  58         int (*get_caps)(struct snd_soc_component *component,
  59                         struct snd_compr_stream *stream,
  60                         struct snd_compr_caps *caps);
  61         int (*get_codec_caps)(struct snd_soc_component *component,
  62                               struct snd_compr_stream *stream,
  63                               struct snd_compr_codec_caps *codec);
  64 };
  65
  66 struct snd_soc_component_driver {
  67         const char *name;
  68
  69         /* Default control and setup, added after probe() is run */
  70         const struct snd_kcontrol_new *controls;
  71         unsigned int num_controls;
  72         const struct snd_soc_dapm_widget *dapm_widgets;
  73         unsigned int num_dapm_widgets;
  74         const struct snd_soc_dapm_route *dapm_routes;
  75         unsigned int num_dapm_routes;
  76
  77         int (*probe)(struct snd_soc_component *component);
  78         void (*remove)(struct snd_soc_component *component);
  79         int (*suspend)(struct snd_soc_component *component);
  80         int (*resume)(struct snd_soc_component *component);
  81
  82         unsigned int (*read)(struct snd_soc_component *component,
  83                              unsigned int reg);
  84         int (*write)(struct snd_soc_component *component,
  85                      unsigned int reg, unsigned int val);
  86
  87         /* pcm creation and destruction */
  88         int (*pcm_construct)(struct snd_soc_component *component,
  89                              struct snd_soc_pcm_runtime *rtd);
  90         void (*pcm_destruct)(struct snd_soc_component *component,
  91                              struct snd_pcm *pcm);
  92
  93         /* component wide operations */
  94         int (*set_sysclk)(struct snd_soc_component *component,
  95                           int clk_id, int source, unsigned int freq, int dir);
  96         int (*set_pll)(struct snd_soc_component *component, int pll_id,
  97                        int source, unsigned int freq_in, unsigned int freq_out);
  98         int (*set_jack)(struct snd_soc_component *component,
  99                         struct snd_soc_jack *jack,  void *data);
 100
 101         /* DT */
 102         int (*of_xlate_dai_name)(struct snd_soc_component *component,
 103                                  struct of_phandle_args *args,
 104                                  const char **dai_name);
 105         int (*of_xlate_dai_id)(struct snd_soc_component *comment,
 106                                struct device_node *endpoint);
 107         void (*seq_notifier)(struct snd_soc_component *component,
 108                              enum snd_soc_dapm_type type, int subseq);
 109         int (*stream_event)(struct snd_soc_component *component, int event);
 110         int (*set_bias_level)(struct snd_soc_component *component,
 111                               enum snd_soc_bias_level level);
 112
 113         int (*open)(struct snd_soc_component *component,
 114                     struct snd_pcm_substream *substream);
 115         int (*close)(struct snd_soc_component *component,
 116                      struct snd_pcm_substream *substream);
 117         int (*ioctl)(struct snd_soc_component *component,
 118                      struct snd_pcm_substream *substream,
 119                      unsigned int cmd, void *arg);
 120         int (*hw_params)(struct snd_soc_component *component,
 121                          struct snd_pcm_substream *substream,
 122                          struct snd_pcm_hw_params *params);
 123         int (*hw_free)(struct snd_soc_component *component,
 124                        struct snd_pcm_substream *substream);
 125         int (*prepare)(struct snd_soc_component *component,
 126                        struct snd_pcm_substream *substream);
 127         int (*trigger)(struct snd_soc_component *component,
 128                        struct snd_pcm_substream *substream, int cmd);
 129         int (*sync_stop)(struct snd_soc_component *component,
 130                          struct snd_pcm_substream *substream);
 131         snd_pcm_uframes_t (*pointer)(struct snd_soc_component *component,
 132                                      struct snd_pcm_substream *substream);
 133         int (*get_time_info)(struct snd_soc_component *component,
 134                 struct snd_pcm_substream *substream, struct timespec64 *system_ts,
 135                 struct timespec64 *audio_ts,
 136                 struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
 137                 struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
 138         int (*copy_user)(struct snd_soc_component *component,
 139                          struct snd_pcm_substream *substream, int channel,
 140                          unsigned long pos, void __user *buf,
 141                          unsigned long bytes);
 142         struct page *(*page)(struct snd_soc_component *component,
 143                              struct snd_pcm_substream *substream,
 144                              unsigned long offset);
 145         int (*mmap)(struct snd_soc_component *component,
 146                     struct snd_pcm_substream *substream,
 147                     struct vm_area_struct *vma);
 148
 149         const struct snd_compress_ops *compress_ops;
 150
 151         /* probe ordering - for components with runtime dependencies */
 152         int probe_order;
 153         int remove_order;
 154
 155         /*
 156          * signal if the module handling the component should not be removed
 157          * if a pcm is open. Setting this would prevent the module
 158          * refcount being incremented in probe() but allow it be incremented
 159          * when a pcm is opened and decremented when it is closed.
 160          */
 161         unsigned int module_get_upon_open:1;
 162
 163         /* bits */
 164         unsigned int idle_bias_on:1;
 165         unsigned int suspend_bias_off:1;
 166         unsigned int use_pmdown_time:1; /* care pmdown_time at stop */
 167         unsigned int endianness:1;
 168         unsigned int non_legacy_dai_naming:1;
 169
 170         /* this component uses topology and ignore machine driver FEs */
 171         const char *ignore_machine;
 172         const char *topology_name_prefix;
 173         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
 174                                   struct snd_pcm_hw_params *params);
 175         bool use_dai_pcm_id;    /* use DAI link PCM ID as PCM device number */
 176         int be_pcm_base;        /* base device ID for all BE PCMs */
 177 };
 178
 179 struct snd_soc_component {
 180         const char *name;
 181         int id;
 182         const char *name_prefix;
 183         struct device *dev;
 184         struct snd_soc_card *card;
 185
 186         unsigned int active;
 187
 188         unsigned int suspended:1; /* is in suspend PM state */
 189
 190         struct list_head list;
 191         struct list_head card_aux_list; /* for auxiliary bound components */
 192         struct list_head card_list;
 193
 194         const struct snd_soc_component_driver *driver;
 195
 196         struct list_head dai_list;
 197         int num_dai;
 198
 199         struct regmap *regmap;
 200         int val_bytes;
 201
 202         struct mutex io_mutex;
 203
 204         /* attached dynamic objects */
 205         struct list_head dobj_list;
 206
 207         /*
 208          * DO NOT use any of the fields below in drivers, they are temporary and
 209          * are going to be removed again soon. If you use them in driver code
 210          * the driver will be marked as BROKEN when these fields are removed.
 211          */
 212
 213         /* Don't use these, use snd_soc_component_get_dapm() */
 214         struct snd_soc_dapm_context dapm;
 215
 216         /* machine specific init */
 217         int (*init)(struct snd_soc_component *component);
 218
 219 #ifdef CONFIG_DEBUG_FS
 220         struct dentry *debugfs_root;
 221         const char *debugfs_prefix;
 222 #endif
 223 };
 224
 225 #define for_each_component_dais(component, dai)\
 226         list_for_each_entry(dai, &(component)->dai_list, list)
 227 #define for_each_component_dais_safe(component, dai, _dai)\
 228         list_for_each_entry_safe(dai, _dai, &(component)->dai_list, list)
 229
 230 /**
 231  * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
 232  *  embedded in
 233  * @dapm: The DAPM context to cast to the component
 234  *
 235  * This function must only be used on DAPM contexts that are known to be part of
 236  * a component (e.g. in a component driver). Otherwise the behavior is
 237  * undefined.
 238  */
 239 static inline struct snd_soc_component *snd_soc_dapm_to_component(
 240         struct snd_soc_dapm_context *dapm)
 241 {
 242         return container_of(dapm, struct snd_soc_component, dapm);
 243 }
 244
 245 /**
 246  * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
 247  *  component
 248  * @component: The component for which to get the DAPM context
 249  */
 250 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm(
 251         struct snd_soc_component *component)
 252 {
 253         return &component->dapm;
 254 }
 255
 256 /**
 257  * snd_soc_component_init_bias_level() - Initialize COMPONENT DAPM bias level
 258  * @component: The COMPONENT for which to initialize the DAPM bias level
 259  * @level: The DAPM level to initialize to
 260  *
 261  * Initializes the COMPONENT DAPM bias level. See snd_soc_dapm_init_bias_level()
 262  */
 263 static inline void
 264 snd_soc_component_init_bias_level(struct snd_soc_component *component,
 265                                   enum snd_soc_bias_level level)
 266 {
 267         snd_soc_dapm_init_bias_level(
 268                 snd_soc_component_get_dapm(component), level);
 269 }
 270
 271 /**
 272  * snd_soc_component_get_bias_level() - Get current COMPONENT DAPM bias level
 273  * @component: The COMPONENT for which to get the DAPM bias level
 274  *
 275  * Returns: The current DAPM bias level of the COMPONENT.
 276  */
 277 static inline enum snd_soc_bias_level
 278 snd_soc_component_get_bias_level(struct snd_soc_component *component)
 279 {
 280         return snd_soc_dapm_get_bias_level(
 281                 snd_soc_component_get_dapm(component));
 282 }
 283
 284 /**
 285  * snd_soc_component_force_bias_level() - Set the COMPONENT DAPM bias level
 286  * @component: The COMPONENT for which to set the level
 287  * @level: The level to set to
 288  *
 289  * Forces the COMPONENT bias level to a specific state. See
 290  * snd_soc_dapm_force_bias_level().
 291  */
 292 static inline int
 293 snd_soc_component_force_bias_level(struct snd_soc_component *component,
 294                                    enum snd_soc_bias_level level)
 295 {
 296         return snd_soc_dapm_force_bias_level(
 297                 snd_soc_component_get_dapm(component),
 298                 level);
 299 }
 300
 301 /**
 302  * snd_soc_dapm_kcontrol_component() - Returns the component associated to a
 303  * kcontrol
 304  * @kcontrol: The kcontrol
 305  *
 306  * This function must only be used on DAPM contexts that are known to be part of
 307  * a COMPONENT (e.g. in a COMPONENT driver). Otherwise the behavior is undefined
 308  */
 309 static inline struct snd_soc_component *snd_soc_dapm_kcontrol_component(
 310         struct snd_kcontrol *kcontrol)
 311 {
 312         return snd_soc_dapm_to_component(snd_soc_dapm_kcontrol_dapm(kcontrol));
 313 }
 314
 315 /**
 316  * snd_soc_component_cache_sync() - Sync the register cache with the hardware
 317  * @component: COMPONENT to sync
 318  *
 319  * Note: This function will call regcache_sync()
 320  */
 321 static inline int snd_soc_component_cache_sync(
 322         struct snd_soc_component *component)
 323 {
 324         return regcache_sync(component->regmap);
 325 }
 326
 327 /* component IO */
 328 int snd_soc_component_read(struct snd_soc_component *component,
 329                            unsigned int reg, unsigned int *val);
 330 unsigned int snd_soc_component_read32(struct snd_soc_component *component,
 331                                       unsigned int reg);
 332 int snd_soc_component_write(struct snd_soc_component *component,
 333                             unsigned int reg, unsigned int val);
 334 int snd_soc_component_update_bits(struct snd_soc_component *component,
 335                                   unsigned int reg, unsigned int mask,
 336                                   unsigned int val);
 337 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
 338                                         unsigned int reg, unsigned int mask,
 339                                         unsigned int val);
 340 void snd_soc_component_async_complete(struct snd_soc_component *component);
 341 int snd_soc_component_test_bits(struct snd_soc_component *component,
 342                                 unsigned int reg, unsigned int mask,
 343                                 unsigned int value);
 344
 345 /* component wide operations */
 346 int snd_soc_component_set_sysclk(struct snd_soc_component *component,
 347                                  int clk_id, int source,
 348                                  unsigned int freq, int dir);
 349 int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
 350                               int source, unsigned int freq_in,
 351                               unsigned int freq_out);
 352 int snd_soc_component_set_jack(struct snd_soc_component *component,
 353                                struct snd_soc_jack *jack, void *data);
 354
 355 void snd_soc_component_seq_notifier(struct snd_soc_component *component,
 356                                     enum snd_soc_dapm_type type, int subseq);
 357 int snd_soc_component_stream_event(struct snd_soc_component *component,
 358                                    int event);
 359 int snd_soc_component_set_bias_level(struct snd_soc_component *component,
 360                                      enum snd_soc_bias_level level);
 361
 362 #ifdef CONFIG_REGMAP
 363 void snd_soc_component_init_regmap(struct snd_soc_component *component,
 364                                    struct regmap *regmap);
 365 void snd_soc_component_exit_regmap(struct snd_soc_component *component);
 366 #endif
 367
 368 #define snd_soc_component_module_get_when_probe(component)\
 369         snd_soc_component_module_get(component, 0)
 370 #define snd_soc_component_module_get_when_open(component)       \
 371         snd_soc_component_module_get(component, 1)
 372 int snd_soc_component_module_get(struct snd_soc_component *component,
 373                                  int upon_open);
 374 #define snd_soc_component_module_put_when_remove(component)     \
 375         snd_soc_component_module_put(component, 0)
 376 #define snd_soc_component_module_put_when_close(component)      \
 377         snd_soc_component_module_put(component, 1)
 378 void snd_soc_component_module_put(struct snd_soc_component *component,
 379                                   int upon_open);
 380
 381 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
 382                                                  void *data)
 383 {
 384         dev_set_drvdata(c->dev, data);
 385 }
 386
 387 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
 388 {
 389         return dev_get_drvdata(c->dev);
 390 }
 391
 392 static inline unsigned int
 393 snd_soc_component_active(struct snd_soc_component *component)
 394 {
 395         return component->active;
 396 }
 397
 398 /* component pin */
 399 int snd_soc_component_enable_pin(struct snd_soc_component *component,
 400                                  const char *pin);
 401 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
 402                                           const char *pin);
 403 int snd_soc_component_disable_pin(struct snd_soc_component *component,
 404                                   const char *pin);
 405 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
 406                                            const char *pin);
 407 int snd_soc_component_nc_pin(struct snd_soc_component *component,
 408                              const char *pin);
 409 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
 410                                       const char *pin);
 411 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
 412                                      const char *pin);
 413 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
 414                                        const char *pin);
 415 int snd_soc_component_force_enable_pin_unlocked(
 416         struct snd_soc_component *component,
 417         const char *pin);
 418
 419 /* component driver ops */
 420 int snd_soc_component_open(struct snd_soc_component *component,
 421                            struct snd_pcm_substream *substream);
 422 int snd_soc_component_close(struct snd_soc_component *component,
 423                             struct snd_pcm_substream *substream);
 424 int snd_soc_component_prepare(struct snd_soc_component *component,
 425                               struct snd_pcm_substream *substream);
 426 int snd_soc_component_hw_params(struct snd_soc_component *component,
 427                                 struct snd_pcm_substream *substream,
 428                                 struct snd_pcm_hw_params *params);
 429 int snd_soc_component_hw_free(struct snd_soc_component *component,
 430                               struct snd_pcm_substream *substream);
 431 int snd_soc_component_trigger(struct snd_soc_component *component,
 432                               struct snd_pcm_substream *substream,
 433                               int cmd);
 434 void snd_soc_component_suspend(struct snd_soc_component *component);
 435 void snd_soc_component_resume(struct snd_soc_component *component);
 436 int snd_soc_component_is_suspended(struct snd_soc_component *component);
 437 int snd_soc_component_probe(struct snd_soc_component *component);
 438 void snd_soc_component_remove(struct snd_soc_component *component);
 439 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
 440                                       struct device_node *ep);
 441 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
 442                                         struct of_phandle_args *args,
 443                                         const char **dai_name);
 444
 445 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream);
 446 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
 447                                 unsigned int cmd, void *arg);
 448 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream);
 449 int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
 450                                     int channel, unsigned long pos,
 451                                     void __user *buf, unsigned long bytes);
 452 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
 453                                         unsigned long offset);
 454 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
 455                                struct vm_area_struct *vma);
 456 int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd);
 457 void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd);
 458
 459 #endif /* __SOC_COMPONENT_H */