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1/* SPDX-License-Identifier: GPL-2.0
2 *
3 * soc-component.h
4 *
5 * Copyright (C) 2019 Renesas Electronics Corp.
6 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 */
8#ifndef __SOC_COMPONENT_H
9#define __SOC_COMPONENT_H
10
11#include <sound/soc.h>
12
13/*
14 * Component probe and remove ordering levels for components with runtime
15 * dependencies.
16 */
17#define SND_SOC_COMP_ORDER_FIRST -2
18#define SND_SOC_COMP_ORDER_EARLY -1
19#define SND_SOC_COMP_ORDER_NORMAL 0
20#define SND_SOC_COMP_ORDER_LATE 1
21#define SND_SOC_COMP_ORDER_LAST 2
22
23#define for_each_comp_order(order) \
24 for (order = SND_SOC_COMP_ORDER_FIRST; \
25 order <= SND_SOC_COMP_ORDER_LAST; \
26 order++)
27
28/* component interface */
29struct snd_compress_ops {
30 int (*open)(struct snd_soc_component *component,
31 struct snd_compr_stream *stream);
32 int (*free)(struct snd_soc_component *component,
33 struct snd_compr_stream *stream);
34 int (*set_params)(struct snd_soc_component *component,
35 struct snd_compr_stream *stream,
36 struct snd_compr_params *params);
37 int (*get_params)(struct snd_soc_component *component,
38 struct snd_compr_stream *stream,
39 struct snd_codec *params);
40 int (*set_metadata)(struct snd_soc_component *component,
41 struct snd_compr_stream *stream,
42 struct snd_compr_metadata *metadata);
43 int (*get_metadata)(struct snd_soc_component *component,
44 struct snd_compr_stream *stream,
45 struct snd_compr_metadata *metadata);
46 int (*trigger)(struct snd_soc_component *component,
47 struct snd_compr_stream *stream, int cmd);
48 int (*pointer)(struct snd_soc_component *component,
49 struct snd_compr_stream *stream,
50 struct snd_compr_tstamp *tstamp);
51 int (*copy)(struct snd_soc_component *component,
52 struct snd_compr_stream *stream, char __user *buf,
53 size_t count);
54 int (*mmap)(struct snd_soc_component *component,
55 struct snd_compr_stream *stream,
56 struct vm_area_struct *vma);
57 int (*ack)(struct snd_soc_component *component,
58 struct snd_compr_stream *stream, size_t bytes);
59 int (*get_caps)(struct snd_soc_component *component,
60 struct snd_compr_stream *stream,
61 struct snd_compr_caps *caps);
62 int (*get_codec_caps)(struct snd_soc_component *component,
63 struct snd_compr_stream *stream,
64 struct snd_compr_codec_caps *codec);
65};
66
67struct snd_soc_component_driver {
68 const char *name;
69
70 /* Default control and setup, added after probe() is run */
71 const struct snd_kcontrol_new *controls;
72 unsigned int num_controls;
73 const struct snd_soc_dapm_widget *dapm_widgets;
74 unsigned int num_dapm_widgets;
75 const struct snd_soc_dapm_route *dapm_routes;
76 unsigned int num_dapm_routes;
77
78 int (*probe)(struct snd_soc_component *component);
79 void (*remove)(struct snd_soc_component *component);
80 int (*suspend)(struct snd_soc_component *component);
81 int (*resume)(struct snd_soc_component *component);
82
83 unsigned int (*read)(struct snd_soc_component *component,
84 unsigned int reg);
85 int (*write)(struct snd_soc_component *component,
86 unsigned int reg, unsigned int val);
87
88 /* pcm creation and destruction */
89 int (*pcm_construct)(struct snd_soc_component *component,
90 struct snd_soc_pcm_runtime *rtd);
91 void (*pcm_destruct)(struct snd_soc_component *component,
92 struct snd_pcm *pcm);
93
94 /* component wide operations */
95 int (*set_sysclk)(struct snd_soc_component *component,
96 int clk_id, int source, unsigned int freq, int dir);
97 int (*set_pll)(struct snd_soc_component *component, int pll_id,
98 int source, unsigned int freq_in, unsigned int freq_out);
99 int (*set_jack)(struct snd_soc_component *component,
100 struct snd_soc_jack *jack, void *data);
101
102 /* DT */
103 int (*of_xlate_dai_name)(struct snd_soc_component *component,
104 const struct of_phandle_args *args,
105 const char **dai_name);
106 int (*of_xlate_dai_id)(struct snd_soc_component *comment,
107 struct device_node *endpoint);
108 void (*seq_notifier)(struct snd_soc_component *component,
109 enum snd_soc_dapm_type type, int subseq);
110 int (*stream_event)(struct snd_soc_component *component, int event);
111 int (*set_bias_level)(struct snd_soc_component *component,
112 enum snd_soc_bias_level level);
113
114 int (*open)(struct snd_soc_component *component,
115 struct snd_pcm_substream *substream);
116 int (*close)(struct snd_soc_component *component,
117 struct snd_pcm_substream *substream);
118 int (*ioctl)(struct snd_soc_component *component,
119 struct snd_pcm_substream *substream,
120 unsigned int cmd, void *arg);
121 int (*hw_params)(struct snd_soc_component *component,
122 struct snd_pcm_substream *substream,
123 struct snd_pcm_hw_params *params);
124 int (*hw_free)(struct snd_soc_component *component,
125 struct snd_pcm_substream *substream);
126 int (*prepare)(struct snd_soc_component *component,
127 struct snd_pcm_substream *substream);
128 int (*trigger)(struct snd_soc_component *component,
129 struct snd_pcm_substream *substream, int cmd);
130 int (*sync_stop)(struct snd_soc_component *component,
131 struct snd_pcm_substream *substream);
132 snd_pcm_uframes_t (*pointer)(struct snd_soc_component *component,
133 struct snd_pcm_substream *substream);
134 int (*get_time_info)(struct snd_soc_component *component,
135 struct snd_pcm_substream *substream, struct timespec64 *system_ts,
136 struct timespec64 *audio_ts,
137 struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
138 struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
139 int (*copy_user)(struct snd_soc_component *component,
140 struct snd_pcm_substream *substream, int channel,
141 unsigned long pos, void __user *buf,
142 unsigned long bytes);
143 struct page *(*page)(struct snd_soc_component *component,
144 struct snd_pcm_substream *substream,
145 unsigned long offset);
146 int (*mmap)(struct snd_soc_component *component,
147 struct snd_pcm_substream *substream,
148 struct vm_area_struct *vma);
149 int (*ack)(struct snd_soc_component *component,
150 struct snd_pcm_substream *substream);
151
152 const struct snd_compress_ops *compress_ops;
153
154 /* probe ordering - for components with runtime dependencies */
155 int probe_order;
156 int remove_order;
157
158 /*
159 * signal if the module handling the component should not be removed
160 * if a pcm is open. Setting this would prevent the module
161 * refcount being incremented in probe() but allow it be incremented
162 * when a pcm is opened and decremented when it is closed.
163 */
164 unsigned int module_get_upon_open:1;
165
166 /* bits */
167 unsigned int idle_bias_on:1;
168 unsigned int suspend_bias_off:1;
169 unsigned int use_pmdown_time:1; /* care pmdown_time at stop */
170 unsigned int endianness:1;
171 unsigned int non_legacy_dai_naming:1;
172
173 /* this component uses topology and ignore machine driver FEs */
174 const char *ignore_machine;
175 const char *topology_name_prefix;
176 int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
177 struct snd_pcm_hw_params *params);
178 bool use_dai_pcm_id; /* use DAI link PCM ID as PCM device number */
179 int be_pcm_base; /* base device ID for all BE PCMs */
180};
181
182struct snd_soc_component {
183 const char *name;
184 int id;
185 const char *name_prefix;
186 struct device *dev;
187 struct snd_soc_card *card;
188
189 unsigned int active;
190
191 unsigned int suspended:1; /* is in suspend PM state */
192
193 struct list_head list;
194 struct list_head card_aux_list; /* for auxiliary bound components */
195 struct list_head card_list;
196
197 const struct snd_soc_component_driver *driver;
198
199 struct list_head dai_list;
200 int num_dai;
201
202 struct regmap *regmap;
203 int val_bytes;
204
205 struct mutex io_mutex;
206
207 /* attached dynamic objects */
208 struct list_head dobj_list;
209
210 /*
211 * DO NOT use any of the fields below in drivers, they are temporary and
212 * are going to be removed again soon. If you use them in driver code
213 * the driver will be marked as BROKEN when these fields are removed.
214 */
215
216 /* Don't use these, use snd_soc_component_get_dapm() */
217 struct snd_soc_dapm_context dapm;
218
219 /* machine specific init */
220 int (*init)(struct snd_soc_component *component);
221
222 /* function mark */
223 struct snd_pcm_substream *mark_module;
224 struct snd_pcm_substream *mark_open;
225 struct snd_pcm_substream *mark_hw_params;
226 struct snd_pcm_substream *mark_trigger;
227 struct snd_compr_stream *mark_compr_open;
228 void *mark_pm;
229
230#ifdef CONFIG_DEBUG_FS
231 struct dentry *debugfs_root;
232 const char *debugfs_prefix;
233#endif
234};
235
236#define for_each_component_dais(component, dai)\
237 list_for_each_entry(dai, &(component)->dai_list, list)
238#define for_each_component_dais_safe(component, dai, _dai)\
239 list_for_each_entry_safe(dai, _dai, &(component)->dai_list, list)
240
241/**
242 * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
243 * embedded in
244 * @dapm: The DAPM context to cast to the component
245 *
246 * This function must only be used on DAPM contexts that are known to be part of
247 * a component (e.g. in a component driver). Otherwise the behavior is
248 * undefined.
249 */
250static inline struct snd_soc_component *snd_soc_dapm_to_component(
251 struct snd_soc_dapm_context *dapm)
252{
253 return container_of(dapm, struct snd_soc_component, dapm);
254}
255
256/**
257 * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
258 * component
259 * @component: The component for which to get the DAPM context
260 */
261static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm(
262 struct snd_soc_component *component)
263{
264 return &component->dapm;
265}
266
267/**
268 * snd_soc_component_init_bias_level() - Initialize COMPONENT DAPM bias level
269 * @component: The COMPONENT for which to initialize the DAPM bias level
270 * @level: The DAPM level to initialize to
271 *
272 * Initializes the COMPONENT DAPM bias level. See snd_soc_dapm_init_bias_level()
273 */
274static inline void
275snd_soc_component_init_bias_level(struct snd_soc_component *component,
276 enum snd_soc_bias_level level)
277{
278 snd_soc_dapm_init_bias_level(
279 snd_soc_component_get_dapm(component), level);
280}
281
282/**
283 * snd_soc_component_get_bias_level() - Get current COMPONENT DAPM bias level
284 * @component: The COMPONENT for which to get the DAPM bias level
285 *
286 * Returns: The current DAPM bias level of the COMPONENT.
287 */
288static inline enum snd_soc_bias_level
289snd_soc_component_get_bias_level(struct snd_soc_component *component)
290{
291 return snd_soc_dapm_get_bias_level(
292 snd_soc_component_get_dapm(component));
293}
294
295/**
296 * snd_soc_component_force_bias_level() - Set the COMPONENT DAPM bias level
297 * @component: The COMPONENT for which to set the level
298 * @level: The level to set to
299 *
300 * Forces the COMPONENT bias level to a specific state. See
301 * snd_soc_dapm_force_bias_level().
302 */
303static inline int
304snd_soc_component_force_bias_level(struct snd_soc_component *component,
305 enum snd_soc_bias_level level)
306{
307 return snd_soc_dapm_force_bias_level(
308 snd_soc_component_get_dapm(component),
309 level);
310}
311
312/**
313 * snd_soc_dapm_kcontrol_component() - Returns the component associated to a
314 * kcontrol
315 * @kcontrol: The kcontrol
316 *
317 * This function must only be used on DAPM contexts that are known to be part of
318 * a COMPONENT (e.g. in a COMPONENT driver). Otherwise the behavior is undefined
319 */
320static inline struct snd_soc_component *snd_soc_dapm_kcontrol_component(
321 struct snd_kcontrol *kcontrol)
322{
323 return snd_soc_dapm_to_component(snd_soc_dapm_kcontrol_dapm(kcontrol));
324}
325
326/**
327 * snd_soc_component_cache_sync() - Sync the register cache with the hardware
328 * @component: COMPONENT to sync
329 *
330 * Note: This function will call regcache_sync()
331 */
332static inline int snd_soc_component_cache_sync(
333 struct snd_soc_component *component)
334{
335 return regcache_sync(component->regmap);
336}
337
338void snd_soc_component_set_aux(struct snd_soc_component *component,
339 struct snd_soc_aux_dev *aux);
340int snd_soc_component_init(struct snd_soc_component *component);
341int snd_soc_component_is_dummy(struct snd_soc_component *component);
342
343/* component IO */
344unsigned int snd_soc_component_read(struct snd_soc_component *component,
345 unsigned int reg);
346int snd_soc_component_write(struct snd_soc_component *component,
347 unsigned int reg, unsigned int val);
348int snd_soc_component_update_bits(struct snd_soc_component *component,
349 unsigned int reg, unsigned int mask,
350 unsigned int val);
351int snd_soc_component_update_bits_async(struct snd_soc_component *component,
352 unsigned int reg, unsigned int mask,
353 unsigned int val);
354void snd_soc_component_async_complete(struct snd_soc_component *component);
355int snd_soc_component_test_bits(struct snd_soc_component *component,
356 unsigned int reg, unsigned int mask,
357 unsigned int value);
358
359unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
360 unsigned int reg, unsigned int mask);
361int snd_soc_component_write_field(struct snd_soc_component *component,
362 unsigned int reg, unsigned int mask,
363 unsigned int val);
364
365/* component wide operations */
366int snd_soc_component_set_sysclk(struct snd_soc_component *component,
367 int clk_id, int source,
368 unsigned int freq, int dir);
369int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
370 int source, unsigned int freq_in,
371 unsigned int freq_out);
372int snd_soc_component_set_jack(struct snd_soc_component *component,
373 struct snd_soc_jack *jack, void *data);
374
375void snd_soc_component_seq_notifier(struct snd_soc_component *component,
376 enum snd_soc_dapm_type type, int subseq);
377int snd_soc_component_stream_event(struct snd_soc_component *component,
378 int event);
379int snd_soc_component_set_bias_level(struct snd_soc_component *component,
380 enum snd_soc_bias_level level);
381
382void snd_soc_component_setup_regmap(struct snd_soc_component *component);
383#ifdef CONFIG_REGMAP
384void snd_soc_component_init_regmap(struct snd_soc_component *component,
385 struct regmap *regmap);
386void snd_soc_component_exit_regmap(struct snd_soc_component *component);
387#endif
388
389#define snd_soc_component_module_get_when_probe(component)\
390 snd_soc_component_module_get(component, NULL, 0)
391#define snd_soc_component_module_get_when_open(component, substream) \
392 snd_soc_component_module_get(component, substream, 1)
393int snd_soc_component_module_get(struct snd_soc_component *component,
394 struct snd_pcm_substream *substream,
395 int upon_open);
396#define snd_soc_component_module_put_when_remove(component) \
397 snd_soc_component_module_put(component, NULL, 0, 0)
398#define snd_soc_component_module_put_when_close(component, substream, rollback) \
399 snd_soc_component_module_put(component, substream, 1, rollback)
400void snd_soc_component_module_put(struct snd_soc_component *component,
401 struct snd_pcm_substream *substream,
402 int upon_open, int rollback);
403
404static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
405 void *data)
406{
407 dev_set_drvdata(c->dev, data);
408}
409
410static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
411{
412 return dev_get_drvdata(c->dev);
413}
414
415static inline unsigned int
416snd_soc_component_active(struct snd_soc_component *component)
417{
418 return component->active;
419}
420
421/* component pin */
422int snd_soc_component_enable_pin(struct snd_soc_component *component,
423 const char *pin);
424int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
425 const char *pin);
426int snd_soc_component_disable_pin(struct snd_soc_component *component,
427 const char *pin);
428int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
429 const char *pin);
430int snd_soc_component_nc_pin(struct snd_soc_component *component,
431 const char *pin);
432int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
433 const char *pin);
434int snd_soc_component_get_pin_status(struct snd_soc_component *component,
435 const char *pin);
436int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
437 const char *pin);
438int snd_soc_component_force_enable_pin_unlocked(
439 struct snd_soc_component *component,
440 const char *pin);
441
442/* component driver ops */
443int snd_soc_component_open(struct snd_soc_component *component,
444 struct snd_pcm_substream *substream);
445int snd_soc_component_close(struct snd_soc_component *component,
446 struct snd_pcm_substream *substream,
447 int rollback);
448void snd_soc_component_suspend(struct snd_soc_component *component);
449void snd_soc_component_resume(struct snd_soc_component *component);
450int snd_soc_component_is_suspended(struct snd_soc_component *component);
451int snd_soc_component_probe(struct snd_soc_component *component);
452void snd_soc_component_remove(struct snd_soc_component *component);
453int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
454 struct device_node *ep);
455int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
456 const struct of_phandle_args *args,
457 const char **dai_name);
458int snd_soc_component_compr_open(struct snd_compr_stream *cstream);
459void snd_soc_component_compr_free(struct snd_compr_stream *cstream,
460 int rollback);
461int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd);
462int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
463 struct snd_compr_params *params);
464int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
465 struct snd_codec *params);
466int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
467 struct snd_compr_caps *caps);
468int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
469 struct snd_compr_codec_caps *codec);
470int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes);
471int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
472 struct snd_compr_tstamp *tstamp);
473int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
474 char __user *buf, size_t count);
475int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
476 struct snd_compr_metadata *metadata);
477int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
478 struct snd_compr_metadata *metadata);
479
480int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream);
481int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
482 unsigned int cmd, void *arg);
483int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream);
484int snd_soc_pcm_component_copy_user(struct snd_pcm_substream *substream,
485 int channel, unsigned long pos,
486 void __user *buf, unsigned long bytes);
487struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
488 unsigned long offset);
489int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
490 struct vm_area_struct *vma);
491int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd);
492void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd);
493int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream);
494int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
495 struct snd_pcm_hw_params *params);
496void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
497 int rollback);
498int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
499 int cmd, int rollback);
500int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
501 void *stream);
502void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
503 void *stream, int rollback);
504int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream);
505
506#endif /* __SOC_COMPONENT_H */