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 */
29 struct 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 
67 struct 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 	int (*get_jack_type)(struct snd_soc_component *component);
102 
103 	/* DT */
104 	int (*of_xlate_dai_name)(struct snd_soc_component *component,
105 				 const struct of_phandle_args *args,
106 				 const char **dai_name);
107 	int (*of_xlate_dai_id)(struct snd_soc_component *comment,
108 			       struct device_node *endpoint);
109 	void (*seq_notifier)(struct snd_soc_component *component,
110 			     enum snd_soc_dapm_type type, int subseq);
111 	int (*stream_event)(struct snd_soc_component *component, int event);
112 	int (*set_bias_level)(struct snd_soc_component *component,
113 			      enum snd_soc_bias_level level);
114 
115 	int (*open)(struct snd_soc_component *component,
116 		    struct snd_pcm_substream *substream);
117 	int (*close)(struct snd_soc_component *component,
118 		     struct snd_pcm_substream *substream);
119 	int (*ioctl)(struct snd_soc_component *component,
120 		     struct snd_pcm_substream *substream,
121 		     unsigned int cmd, void *arg);
122 	int (*hw_params)(struct snd_soc_component *component,
123 			 struct snd_pcm_substream *substream,
124 			 struct snd_pcm_hw_params *params);
125 	int (*hw_free)(struct snd_soc_component *component,
126 		       struct snd_pcm_substream *substream);
127 	int (*prepare)(struct snd_soc_component *component,
128 		       struct snd_pcm_substream *substream);
129 	int (*trigger)(struct snd_soc_component *component,
130 		       struct snd_pcm_substream *substream, int cmd);
131 	int (*sync_stop)(struct snd_soc_component *component,
132 			 struct snd_pcm_substream *substream);
133 	snd_pcm_uframes_t (*pointer)(struct snd_soc_component *component,
134 				     struct snd_pcm_substream *substream);
135 	int (*get_time_info)(struct snd_soc_component *component,
136 		struct snd_pcm_substream *substream, struct timespec64 *system_ts,
137 		struct timespec64 *audio_ts,
138 		struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
139 		struct snd_pcm_audio_tstamp_report *audio_tstamp_report);
140 	int (*copy)(struct snd_soc_component *component,
141 		    struct snd_pcm_substream *substream, int channel,
142 		    unsigned long pos, struct iov_iter *iter,
143 		    unsigned long bytes);
144 	struct page *(*page)(struct snd_soc_component *component,
145 			     struct snd_pcm_substream *substream,
146 			     unsigned long offset);
147 	int (*mmap)(struct snd_soc_component *component,
148 		    struct snd_pcm_substream *substream,
149 		    struct vm_area_struct *vma);
150 	int (*ack)(struct snd_soc_component *component,
151 		   struct snd_pcm_substream *substream);
152 	snd_pcm_sframes_t (*delay)(struct snd_soc_component *component,
153 				   struct snd_pcm_substream *substream);
154 
155 	const struct snd_compress_ops *compress_ops;
156 
157 	/* probe ordering - for components with runtime dependencies */
158 	int probe_order;
159 	int remove_order;
160 
161 	/*
162 	 * soc_pcm_trigger() start/stop sequence.
163 	 * see also
164 	 *	snd_soc_dai_link
165 	 *	soc_pcm_trigger()
166 	 */
167 	enum snd_soc_trigger_order trigger_start;
168 	enum snd_soc_trigger_order trigger_stop;
169 
170 	/*
171 	 * signal if the module handling the component should not be removed
172 	 * if a pcm is open. Setting this would prevent the module
173 	 * refcount being incremented in probe() but allow it be incremented
174 	 * when a pcm is opened and decremented when it is closed.
175 	 */
176 	unsigned int module_get_upon_open:1;
177 
178 	/* bits */
179 	unsigned int idle_bias_on:1;
180 	unsigned int suspend_bias_off:1;
181 	unsigned int use_pmdown_time:1; /* care pmdown_time at stop */
182 	/*
183 	 * Indicates that the component does not care about the endianness of
184 	 * PCM audio data and the core will ensure that both LE and BE variants
185 	 * of each used format are present. Typically this is because the
186 	 * component sits behind a bus that abstracts away the endian of the
187 	 * original data, ie. one for which the transmission endian is defined
188 	 * (I2S/SLIMbus/SoundWire), or the concept of endian doesn't exist (PDM,
189 	 * analogue).
190 	 */
191 	unsigned int endianness:1;
192 	unsigned int legacy_dai_naming:1;
193 
194 	/* this component uses topology and ignore machine driver FEs */
195 	const char *ignore_machine;
196 	const char *topology_name_prefix;
197 	int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
198 				  struct snd_pcm_hw_params *params);
199 	bool use_dai_pcm_id;	/* use DAI link PCM ID as PCM device number */
200 	int be_pcm_base;	/* base device ID for all BE PCMs */
201 
202 #ifdef CONFIG_DEBUG_FS
203 	const char *debugfs_prefix;
204 #endif
205 };
206 
207 struct snd_soc_component {
208 	const char *name;
209 	int id;
210 	const char *name_prefix;
211 	struct device *dev;
212 	struct snd_soc_card *card;
213 
214 	unsigned int active;
215 
216 	unsigned int suspended:1; /* is in suspend PM state */
217 
218 	struct list_head list;
219 	struct list_head card_aux_list; /* for auxiliary bound components */
220 	struct list_head card_list;
221 
222 	const struct snd_soc_component_driver *driver;
223 
224 	struct list_head dai_list;
225 	int num_dai;
226 
227 	struct regmap *regmap;
228 	int val_bytes;
229 
230 	struct mutex io_mutex;
231 
232 	/* attached dynamic objects */
233 	struct list_head dobj_list;
234 
235 	/*
236 	 * DO NOT use any of the fields below in drivers, they are temporary and
237 	 * are going to be removed again soon. If you use them in driver code
238 	 * the driver will be marked as BROKEN when these fields are removed.
239 	 */
240 
241 	/* Don't use these, use snd_soc_component_get_dapm() */
242 	struct snd_soc_dapm_context dapm;
243 
244 	/* machine specific init */
245 	int (*init)(struct snd_soc_component *component);
246 
247 	/* function mark */
248 	void *mark_module;
249 	struct snd_pcm_substream *mark_open;
250 	struct snd_pcm_substream *mark_hw_params;
251 	struct snd_pcm_substream *mark_trigger;
252 	struct snd_compr_stream  *mark_compr_open;
253 	void *mark_pm;
254 
255 	struct dentry *debugfs_root;
256 	const char *debugfs_prefix;
257 };
258 
259 #define for_each_component_dais(component, dai)\
260 	list_for_each_entry(dai, &(component)->dai_list, list)
261 #define for_each_component_dais_safe(component, dai, _dai)\
262 	list_for_each_entry_safe(dai, _dai, &(component)->dai_list, list)
263 
264 /**
265  * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
266  *  embedded in
267  * @dapm: The DAPM context to cast to the component
268  *
269  * This function must only be used on DAPM contexts that are known to be part of
270  * a component (e.g. in a component driver). Otherwise the behavior is
271  * undefined.
272  */
snd_soc_dapm_to_component(struct snd_soc_dapm_context * dapm)273 static inline struct snd_soc_component *snd_soc_dapm_to_component(
274 	struct snd_soc_dapm_context *dapm)
275 {
276 	return container_of(dapm, struct snd_soc_component, dapm);
277 }
278 
279 /**
280  * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
281  *  component
282  * @component: The component for which to get the DAPM context
283  */
snd_soc_component_get_dapm(struct snd_soc_component * component)284 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm(
285 	struct snd_soc_component *component)
286 {
287 	return &component->dapm;
288 }
289 
290 /**
291  * snd_soc_component_init_bias_level() - Initialize COMPONENT DAPM bias level
292  * @component: The COMPONENT for which to initialize the DAPM bias level
293  * @level: The DAPM level to initialize to
294  *
295  * Initializes the COMPONENT DAPM bias level. See snd_soc_dapm_init_bias_level()
296  */
297 static inline void
snd_soc_component_init_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)298 snd_soc_component_init_bias_level(struct snd_soc_component *component,
299 				  enum snd_soc_bias_level level)
300 {
301 	snd_soc_dapm_init_bias_level(
302 		snd_soc_component_get_dapm(component), level);
303 }
304 
305 /**
306  * snd_soc_component_get_bias_level() - Get current COMPONENT DAPM bias level
307  * @component: The COMPONENT for which to get the DAPM bias level
308  *
309  * Returns: The current DAPM bias level of the COMPONENT.
310  */
311 static inline enum snd_soc_bias_level
snd_soc_component_get_bias_level(struct snd_soc_component * component)312 snd_soc_component_get_bias_level(struct snd_soc_component *component)
313 {
314 	return snd_soc_dapm_get_bias_level(
315 		snd_soc_component_get_dapm(component));
316 }
317 
318 /**
319  * snd_soc_component_force_bias_level() - Set the COMPONENT DAPM bias level
320  * @component: The COMPONENT for which to set the level
321  * @level: The level to set to
322  *
323  * Forces the COMPONENT bias level to a specific state. See
324  * snd_soc_dapm_force_bias_level().
325  */
326 static inline int
snd_soc_component_force_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)327 snd_soc_component_force_bias_level(struct snd_soc_component *component,
328 				   enum snd_soc_bias_level level)
329 {
330 	return snd_soc_dapm_force_bias_level(
331 		snd_soc_component_get_dapm(component),
332 		level);
333 }
334 
335 /**
336  * snd_soc_dapm_kcontrol_component() - Returns the component associated to a
337  * kcontrol
338  * @kcontrol: The kcontrol
339  *
340  * This function must only be used on DAPM contexts that are known to be part of
341  * a COMPONENT (e.g. in a COMPONENT driver). Otherwise the behavior is undefined
342  */
snd_soc_dapm_kcontrol_component(struct snd_kcontrol * kcontrol)343 static inline struct snd_soc_component *snd_soc_dapm_kcontrol_component(
344 	struct snd_kcontrol *kcontrol)
345 {
346 	return snd_soc_dapm_to_component(snd_soc_dapm_kcontrol_dapm(kcontrol));
347 }
348 
349 /**
350  * snd_soc_component_cache_sync() - Sync the register cache with the hardware
351  * @component: COMPONENT to sync
352  *
353  * Note: This function will call regcache_sync()
354  */
snd_soc_component_cache_sync(struct snd_soc_component * component)355 static inline int snd_soc_component_cache_sync(
356 	struct snd_soc_component *component)
357 {
358 	return regcache_sync(component->regmap);
359 }
360 
361 void snd_soc_component_set_aux(struct snd_soc_component *component,
362 			       struct snd_soc_aux_dev *aux);
363 int snd_soc_component_init(struct snd_soc_component *component);
364 int snd_soc_component_is_dummy(struct snd_soc_component *component);
365 
366 /* component IO */
367 unsigned int snd_soc_component_read(struct snd_soc_component *component,
368 				      unsigned int reg);
369 int snd_soc_component_write(struct snd_soc_component *component,
370 			    unsigned int reg, unsigned int val);
371 int snd_soc_component_update_bits(struct snd_soc_component *component,
372 				  unsigned int reg, unsigned int mask,
373 				  unsigned int val);
374 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
375 					unsigned int reg, unsigned int mask,
376 					unsigned int val);
377 void snd_soc_component_async_complete(struct snd_soc_component *component);
378 int snd_soc_component_test_bits(struct snd_soc_component *component,
379 				unsigned int reg, unsigned int mask,
380 				unsigned int value);
381 
382 unsigned int snd_soc_component_read_field(struct snd_soc_component *component,
383 					  unsigned int reg, unsigned int mask);
384 int snd_soc_component_write_field(struct snd_soc_component *component,
385 				  unsigned int reg, unsigned int mask,
386 				  unsigned int val);
387 
388 /* component wide operations */
389 int snd_soc_component_set_sysclk(struct snd_soc_component *component,
390 				 int clk_id, int source,
391 				 unsigned int freq, int dir);
392 int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
393 			      int source, unsigned int freq_in,
394 			      unsigned int freq_out);
395 int snd_soc_component_set_jack(struct snd_soc_component *component,
396 			       struct snd_soc_jack *jack, void *data);
397 int snd_soc_component_get_jack_type(struct snd_soc_component *component);
398 
399 void snd_soc_component_seq_notifier(struct snd_soc_component *component,
400 				    enum snd_soc_dapm_type type, int subseq);
401 int snd_soc_component_stream_event(struct snd_soc_component *component,
402 				   int event);
403 int snd_soc_component_set_bias_level(struct snd_soc_component *component,
404 				     enum snd_soc_bias_level level);
405 
406 void snd_soc_component_setup_regmap(struct snd_soc_component *component);
407 #ifdef CONFIG_REGMAP
408 void snd_soc_component_init_regmap(struct snd_soc_component *component,
409 				   struct regmap *regmap);
410 void snd_soc_component_exit_regmap(struct snd_soc_component *component);
411 #endif
412 
413 #define snd_soc_component_module_get_when_probe(component)\
414 	snd_soc_component_module_get(component, NULL, 0)
415 #define snd_soc_component_module_get_when_open(component, substream)	\
416 	snd_soc_component_module_get(component, substream, 1)
417 int snd_soc_component_module_get(struct snd_soc_component *component,
418 				 void *mark, int upon_open);
419 #define snd_soc_component_module_put_when_remove(component)	\
420 	snd_soc_component_module_put(component, NULL, 0, 0)
421 #define snd_soc_component_module_put_when_close(component, substream, rollback) \
422 	snd_soc_component_module_put(component, substream, 1, rollback)
423 void snd_soc_component_module_put(struct snd_soc_component *component,
424 				  void *mark, int upon_open, int rollback);
425 
snd_soc_component_set_drvdata(struct snd_soc_component * c,void * data)426 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
427 						 void *data)
428 {
429 	dev_set_drvdata(c->dev, data);
430 }
431 
snd_soc_component_get_drvdata(struct snd_soc_component * c)432 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
433 {
434 	return dev_get_drvdata(c->dev);
435 }
436 
437 static inline unsigned int
snd_soc_component_active(struct snd_soc_component * component)438 snd_soc_component_active(struct snd_soc_component *component)
439 {
440 	return component->active;
441 }
442 
443 /* component pin */
444 int snd_soc_component_enable_pin(struct snd_soc_component *component,
445 				 const char *pin);
446 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
447 					  const char *pin);
448 int snd_soc_component_disable_pin(struct snd_soc_component *component,
449 				  const char *pin);
450 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
451 					   const char *pin);
452 int snd_soc_component_nc_pin(struct snd_soc_component *component,
453 			     const char *pin);
454 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
455 				      const char *pin);
456 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
457 				     const char *pin);
458 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
459 				       const char *pin);
460 int snd_soc_component_force_enable_pin_unlocked(
461 	struct snd_soc_component *component,
462 	const char *pin);
463 
464 /* component controls */
465 int snd_soc_component_notify_control(struct snd_soc_component *component,
466 				     const char * const ctl);
467 
468 /* component driver ops */
469 int snd_soc_component_open(struct snd_soc_component *component,
470 			   struct snd_pcm_substream *substream);
471 int snd_soc_component_close(struct snd_soc_component *component,
472 			    struct snd_pcm_substream *substream,
473 			    int rollback);
474 void snd_soc_component_suspend(struct snd_soc_component *component);
475 void snd_soc_component_resume(struct snd_soc_component *component);
476 int snd_soc_component_is_suspended(struct snd_soc_component *component);
477 int snd_soc_component_probe(struct snd_soc_component *component);
478 void snd_soc_component_remove(struct snd_soc_component *component);
479 int snd_soc_component_of_xlate_dai_id(struct snd_soc_component *component,
480 				      struct device_node *ep);
481 int snd_soc_component_of_xlate_dai_name(struct snd_soc_component *component,
482 					const struct of_phandle_args *args,
483 					const char **dai_name);
484 int snd_soc_component_compr_open(struct snd_soc_component *component,
485 				 struct snd_compr_stream *cstream);
486 void snd_soc_component_compr_free(struct snd_soc_component *component,
487 				  struct snd_compr_stream *cstream,
488 				  int rollback);
489 int snd_soc_component_compr_trigger(struct snd_compr_stream *cstream, int cmd);
490 int snd_soc_component_compr_set_params(struct snd_compr_stream *cstream,
491 				       struct snd_compr_params *params);
492 int snd_soc_component_compr_get_params(struct snd_compr_stream *cstream,
493 				       struct snd_codec *params);
494 int snd_soc_component_compr_get_caps(struct snd_compr_stream *cstream,
495 				     struct snd_compr_caps *caps);
496 int snd_soc_component_compr_get_codec_caps(struct snd_compr_stream *cstream,
497 					   struct snd_compr_codec_caps *codec);
498 int snd_soc_component_compr_ack(struct snd_compr_stream *cstream, size_t bytes);
499 int snd_soc_component_compr_pointer(struct snd_compr_stream *cstream,
500 				    struct snd_compr_tstamp *tstamp);
501 int snd_soc_component_compr_copy(struct snd_compr_stream *cstream,
502 				 char __user *buf, size_t count);
503 int snd_soc_component_compr_set_metadata(struct snd_compr_stream *cstream,
504 					 struct snd_compr_metadata *metadata);
505 int snd_soc_component_compr_get_metadata(struct snd_compr_stream *cstream,
506 					 struct snd_compr_metadata *metadata);
507 
508 int snd_soc_pcm_component_pointer(struct snd_pcm_substream *substream);
509 int snd_soc_pcm_component_ioctl(struct snd_pcm_substream *substream,
510 				unsigned int cmd, void *arg);
511 int snd_soc_pcm_component_sync_stop(struct snd_pcm_substream *substream);
512 int snd_soc_pcm_component_copy(struct snd_pcm_substream *substream,
513 			       int channel, unsigned long pos,
514 			       struct iov_iter *iter, unsigned long bytes);
515 struct page *snd_soc_pcm_component_page(struct snd_pcm_substream *substream,
516 					unsigned long offset);
517 int snd_soc_pcm_component_mmap(struct snd_pcm_substream *substream,
518 			       struct vm_area_struct *vma);
519 int snd_soc_pcm_component_new(struct snd_soc_pcm_runtime *rtd);
520 void snd_soc_pcm_component_free(struct snd_soc_pcm_runtime *rtd);
521 int snd_soc_pcm_component_prepare(struct snd_pcm_substream *substream);
522 int snd_soc_pcm_component_hw_params(struct snd_pcm_substream *substream,
523 				    struct snd_pcm_hw_params *params);
524 void snd_soc_pcm_component_hw_free(struct snd_pcm_substream *substream,
525 				   int rollback);
526 int snd_soc_pcm_component_trigger(struct snd_pcm_substream *substream,
527 				  int cmd, int rollback);
528 int snd_soc_pcm_component_pm_runtime_get(struct snd_soc_pcm_runtime *rtd,
529 					 void *stream);
530 void snd_soc_pcm_component_pm_runtime_put(struct snd_soc_pcm_runtime *rtd,
531 					  void *stream, int rollback);
532 int snd_soc_pcm_component_ack(struct snd_pcm_substream *substream);
533 void snd_soc_pcm_component_delay(struct snd_pcm_substream *substream,
534 				 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
535 
536 #endif /* __SOC_COMPONENT_H */
537