xref: /linux/sound/soc/sof/sof-audio.h (revision 15a55ec2f8b956d6aa0dd948c907e13db7978c6e)
1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
2 /*
3  * This file is provided under a dual BSD/GPLv2 license.  When using or
4  * redistributing this file, you may do so under either license.
5  *
6  * Copyright(c) 2019 Intel Corporation
7  *
8  * Author: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
9  */
10 
11 #ifndef __SOUND_SOC_SOF_AUDIO_H
12 #define __SOUND_SOC_SOF_AUDIO_H
13 
14 #include <linux/workqueue.h>
15 
16 #include <sound/soc.h>
17 #include <sound/control.h>
18 #include <sound/sof/stream.h> /* needs to be included before control.h */
19 #include <sound/sof/control.h>
20 #include <sound/sof/dai.h>
21 #include <sound/sof/topology.h>
22 #include "sof-priv.h"
23 
24 #define SOF_AUDIO_PCM_DRV_NAME	"sof-audio-component"
25 
26 /*
27  * The ipc4 firmware only supports up to 8 sink or source pins
28  * per widget, because only 3 bits are used for queue(pin) ID
29  * in ipc4 protocol.
30  */
31 #define SOF_WIDGET_MAX_NUM_PINS	8
32 
33 /* Widget pin type */
34 #define SOF_PIN_TYPE_INPUT	0
35 #define SOF_PIN_TYPE_OUTPUT	1
36 
37 /* max number of FE PCMs before BEs */
38 #define SOF_BE_PCM_BASE		16
39 
40 #define DMA_CHAN_INVALID	0xFFFFFFFF
41 
42 #define WIDGET_IS_DAI(id) ((id) == snd_soc_dapm_dai_in || (id) == snd_soc_dapm_dai_out)
43 #define WIDGET_IS_AIF(id) ((id) == snd_soc_dapm_aif_in || (id) == snd_soc_dapm_aif_out)
44 #define WIDGET_IS_AIF_OR_DAI(id) (WIDGET_IS_DAI(id) || WIDGET_IS_AIF(id))
45 #define WIDGET_IS_COPIER(id) (WIDGET_IS_AIF_OR_DAI(id) || (id) == snd_soc_dapm_buffer)
46 
47 #define SOF_DAI_PARAM_INTEL_SSP_MCLK		0
48 #define SOF_DAI_PARAM_INTEL_SSP_BCLK		1
49 #define SOF_DAI_PARAM_INTEL_SSP_TDM_SLOTS	2
50 
51 enum sof_widget_op {
52 	SOF_WIDGET_PREPARE,
53 	SOF_WIDGET_SETUP,
54 	SOF_WIDGET_FREE,
55 	SOF_WIDGET_UNPREPARE,
56 };
57 
58 /*
59  * Volume fractional word length define to 16 sets
60  * the volume linear gain value to use Qx.16 format
61  */
62 #define VOLUME_FWL	16
63 
64 #define SOF_TLV_ITEMS 3
65 
66 static inline u32 mixer_to_ipc(unsigned int value, u32 *volume_map, int size)
67 {
68 	if (value >= size)
69 		return volume_map[size - 1];
70 
71 	return volume_map[value];
72 }
73 
74 static inline u32 ipc_to_mixer(u32 value, u32 *volume_map, int size)
75 {
76 	int i;
77 
78 	for (i = 0; i < size; i++) {
79 		if (volume_map[i] >= value)
80 			return i;
81 	}
82 
83 	return i - 1;
84 }
85 
86 struct snd_sof_widget;
87 struct snd_sof_route;
88 struct snd_sof_control;
89 struct snd_sof_dai;
90 struct snd_sof_pcm;
91 
92 struct snd_sof_dai_config_data {
93 	int dai_index;
94 	int dai_data; /* contains DAI-specific information */
95 	int dai_node_id; /* contains DAI-specific information for Gateway configuration */
96 };
97 
98 /**
99  * struct sof_ipc_pcm_ops - IPC-specific PCM ops
100  * @hw_params: Function pointer for hw_params
101  * @hw_free: Function pointer for hw_free
102  * @trigger: Function pointer for trigger
103  * @dai_link_fixup: Function pointer for DAI link fixup
104  * @pcm_setup: Function pointer for IPC-specific PCM set up that can be used for allocating
105  *	       additional memory in the SOF PCM stream structure
106  * @pcm_free: Function pointer for PCM free that can be used for freeing any
107  *	       additional memory in the SOF PCM stream structure
108  * @pointer: Function pointer for pcm pointer
109  *	     Note: the @pointer callback may return -EOPNOTSUPP which should be
110  *		   handled in a same way as if the callback is not provided
111  * @delay: Function pointer for pcm delay reporting
112  * @reset_hw_params_during_stop: Flag indicating whether the hw_params should be reset during the
113  *				 STOP pcm trigger
114  * @ipc_first_on_start: Send IPC before invoking platform trigger during
115  *				START/PAUSE_RELEASE triggers
116  * @platform_stop_during_hw_free: Invoke the platform trigger during hw_free. This is needed for
117  *				  IPC4 where a pipeline is only paused during stop/pause/suspend
118  *				  triggers. The FW keeps the host DMA running in this case and
119  *				  therefore the host must do the same and should stop the DMA during
120  *				  hw_free.
121  * @d0i3_supported_in_s0ix: Allow DSP D0I3 during S0iX
122  */
123 struct sof_ipc_pcm_ops {
124 	int (*hw_params)(struct snd_soc_component *component, struct snd_pcm_substream *substream,
125 			 struct snd_pcm_hw_params *params,
126 			 struct snd_sof_platform_stream_params *platform_params);
127 	int (*hw_free)(struct snd_soc_component *component, struct snd_pcm_substream *substream);
128 	int (*trigger)(struct snd_soc_component *component,  struct snd_pcm_substream *substream,
129 		       int cmd);
130 	int (*dai_link_fixup)(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params);
131 	int (*pcm_setup)(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm);
132 	void (*pcm_free)(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm);
133 	int (*pointer)(struct snd_soc_component *component,
134 		       struct snd_pcm_substream *substream,
135 		       snd_pcm_uframes_t *pointer);
136 	snd_pcm_sframes_t (*delay)(struct snd_soc_component *component,
137 				   struct snd_pcm_substream *substream);
138 	bool reset_hw_params_during_stop;
139 	bool ipc_first_on_start;
140 	bool platform_stop_during_hw_free;
141 	bool d0i3_supported_in_s0ix;
142 };
143 
144 /**
145  * struct sof_ipc_tplg_control_ops - IPC-specific ops for topology kcontrol IO
146  */
147 struct sof_ipc_tplg_control_ops {
148 	bool (*volume_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
149 	int (*volume_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
150 	bool (*switch_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
151 	int (*switch_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
152 	bool (*enum_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
153 	int (*enum_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
154 	int (*bytes_put)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
155 	int (*bytes_get)(struct snd_sof_control *scontrol, struct snd_ctl_elem_value *ucontrol);
156 	int (*bytes_ext_get)(struct snd_sof_control *scontrol,
157 			     const unsigned int __user *binary_data, unsigned int size);
158 	int (*bytes_ext_volatile_get)(struct snd_sof_control *scontrol,
159 				      const unsigned int __user *binary_data, unsigned int size);
160 	int (*bytes_ext_put)(struct snd_sof_control *scontrol,
161 			     const unsigned int __user *binary_data, unsigned int size);
162 	/* update control data based on notification from the DSP */
163 	void (*update)(struct snd_sof_dev *sdev, void *ipc_control_message);
164 	/* Optional callback to setup kcontrols associated with an swidget */
165 	int (*widget_kcontrol_setup)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
166 	/* mandatory callback to set up volume table for volume kcontrols */
167 	int (*set_up_volume_table)(struct snd_sof_control *scontrol, int tlv[SOF_TLV_ITEMS],
168 				   int size);
169 };
170 
171 /**
172  * struct sof_ipc_tplg_widget_ops - IPC-specific ops for topology widgets
173  * @ipc_setup: Function pointer for setting up widget IPC params
174  * @ipc_free: Function pointer for freeing widget IPC params
175  * @token_list: List of token ID's that should be parsed for the widget
176  * @token_list_size: number of elements in token_list
177  * @bind_event: Function pointer for binding events to the widget
178  * @ipc_prepare: Optional op for preparing a widget for set up
179  * @ipc_unprepare: Optional op for unpreparing a widget
180  */
181 struct sof_ipc_tplg_widget_ops {
182 	int (*ipc_setup)(struct snd_sof_widget *swidget);
183 	void (*ipc_free)(struct snd_sof_widget *swidget);
184 	enum sof_tokens *token_list;
185 	int token_list_size;
186 	int (*bind_event)(struct snd_soc_component *scomp, struct snd_sof_widget *swidget,
187 			  u16 event_type);
188 	int (*ipc_prepare)(struct snd_sof_widget *swidget,
189 			   struct snd_pcm_hw_params *fe_params,
190 			   struct snd_sof_platform_stream_params *platform_params,
191 			   struct snd_pcm_hw_params *source_params, int dir);
192 	void (*ipc_unprepare)(struct snd_sof_widget *swidget);
193 };
194 
195 /**
196  * struct sof_ipc_tplg_ops - IPC-specific topology ops
197  * @widget: Array of pointers to IPC-specific ops for widgets. This should always be of size
198  *	    SND_SOF_DAPM_TYPE_COUNT i.e one per widget type. Unsupported widget types will be
199  *	    initialized to 0.
200  * @control: Pointer to the IPC-specific ops for topology kcontrol IO
201  * @route_setup: Function pointer for setting up pipeline connections
202  * @route_free: Function pointer for freeing pipeline connections.
203  * @token_list: List of all tokens supported by the IPC version. The size of the token_list
204  *		array should be SOF_TOKEN_COUNT. The unused elements in the array will be
205  *		initialized to 0.
206  * @control_setup: Function pointer for setting up kcontrol IPC-specific data
207  * @control_free: Function pointer for freeing kcontrol IPC-specific data
208  * @pipeline_complete: Function pointer for pipeline complete IPC
209  * @widget_setup: Function pointer for setting up setup in the DSP
210  * @widget_free: Function pointer for freeing widget in the DSP
211  * @dai_config: Function pointer for sending DAI config IPC to the DSP
212  * @host_config: Function pointer for setting the DMA ID for host widgets
213  * @dai_get_param: Function pointer for getting the DAI parameter
214  * @set_up_all_pipelines: Function pointer for setting up all topology pipelines
215  * @tear_down_all_pipelines: Function pointer for tearing down all topology pipelines
216  * @parse_manifest: Function pointer for ipc4 specific parsing of topology manifest
217  * @link_setup: Function pointer for IPC-specific DAI link set up
218  *
219  * Note: function pointers (ops) are optional
220  */
221 struct sof_ipc_tplg_ops {
222 	const struct sof_ipc_tplg_widget_ops *widget;
223 	const struct sof_ipc_tplg_control_ops *control;
224 	int (*route_setup)(struct snd_sof_dev *sdev, struct snd_sof_route *sroute);
225 	int (*route_free)(struct snd_sof_dev *sdev, struct snd_sof_route *sroute);
226 	const struct sof_token_info *token_list;
227 	int (*control_setup)(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol);
228 	int (*control_free)(struct snd_sof_dev *sdev, struct snd_sof_control *scontrol);
229 	int (*pipeline_complete)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
230 	int (*widget_setup)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
231 	int (*widget_free)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
232 	int (*dai_config)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
233 			  unsigned int flags, struct snd_sof_dai_config_data *data);
234 	void (*host_config)(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget,
235 			    struct snd_sof_platform_stream_params *platform_params);
236 	int (*dai_get_param)(struct snd_sof_dev *sdev, struct snd_sof_dai *dai, int param_type);
237 	int (*set_up_all_pipelines)(struct snd_sof_dev *sdev, bool verify);
238 	int (*tear_down_all_pipelines)(struct snd_sof_dev *sdev, bool verify);
239 	int (*parse_manifest)(struct snd_soc_component *scomp, int index,
240 			      struct snd_soc_tplg_manifest *man);
241 	int (*link_setup)(struct snd_sof_dev *sdev, struct snd_soc_dai_link *link);
242 };
243 
244 /** struct snd_sof_tuple - Tuple info
245  * @token:	Token ID
246  * @value:	union of a string or a u32 values
247  */
248 struct snd_sof_tuple {
249 	u32 token;
250 	union {
251 		u32 v;
252 		const char *s;
253 	} value;
254 };
255 
256 /*
257  * List of SOF token ID's. The order of ID's does not matter as token arrays are looked up based on
258  * the ID.
259  */
260 enum sof_tokens {
261 	SOF_PCM_TOKENS,
262 	SOF_PIPELINE_TOKENS,
263 	SOF_SCHED_TOKENS,
264 	SOF_ASRC_TOKENS,
265 	SOF_SRC_TOKENS,
266 	SOF_COMP_TOKENS,
267 	SOF_BUFFER_TOKENS,
268 	SOF_VOLUME_TOKENS,
269 	SOF_PROCESS_TOKENS,
270 	SOF_DAI_TOKENS,
271 	SOF_DAI_LINK_TOKENS,
272 	SOF_HDA_TOKENS,
273 	SOF_SSP_TOKENS,
274 	SOF_ALH_TOKENS,
275 	SOF_DMIC_TOKENS,
276 	SOF_DMIC_PDM_TOKENS,
277 	SOF_ESAI_TOKENS,
278 	SOF_SAI_TOKENS,
279 	SOF_AFE_TOKENS,
280 	SOF_CORE_TOKENS,
281 	SOF_COMP_EXT_TOKENS,
282 	SOF_IN_AUDIO_FORMAT_TOKENS,
283 	SOF_OUT_AUDIO_FORMAT_TOKENS,
284 	SOF_COPIER_DEEP_BUFFER_TOKENS,
285 	SOF_COPIER_TOKENS,
286 	SOF_AUDIO_FMT_NUM_TOKENS,
287 	SOF_COPIER_FORMAT_TOKENS,
288 	SOF_GAIN_TOKENS,
289 	SOF_ACPDMIC_TOKENS,
290 	SOF_ACPI2S_TOKENS,
291 	SOF_MICFIL_TOKENS,
292 	SOF_ACP_SDW_TOKENS,
293 
294 	/* this should be the last */
295 	SOF_TOKEN_COUNT,
296 };
297 
298 /**
299  * struct sof_topology_token - SOF topology token definition
300  * @token:		Token number
301  * @type:		Token type
302  * @get_token:		Function pointer to parse the token value and save it in a object
303  * @offset:		Offset within an object to save the token value into
304  */
305 struct sof_topology_token {
306 	u32 token;
307 	u32 type;
308 	int (*get_token)(void *elem, void *object, u32 offset);
309 	u32 offset;
310 };
311 
312 struct sof_token_info {
313 	const char *name;
314 	const struct sof_topology_token *tokens;
315 	int count;
316 };
317 
318 /**
319  * struct snd_sof_pcm_stream_pipeline_list - List of pipelines associated with a PCM stream
320  * @pipelines: array of pipelines
321  * @count: number of pipeline widgets in the @pipe_widgets array
322  */
323 struct snd_sof_pcm_stream_pipeline_list {
324 	struct snd_sof_pipeline **pipelines;
325 	u32 count;
326 };
327 
328 /* PCM stream, mapped to FW component  */
329 struct snd_sof_pcm_stream {
330 	u32 comp_id;
331 	struct snd_dma_buffer page_table;
332 	struct sof_ipc_stream_posn posn;
333 	struct snd_pcm_substream *substream;
334 	struct snd_compr_stream *cstream;
335 	struct work_struct period_elapsed_work;
336 	struct snd_soc_dapm_widget_list *list; /* list of connected DAPM widgets */
337 	bool d0i3_compatible; /* DSP can be in D0I3 when this pcm is opened */
338 	bool pause_supported; /* PCM device supports PAUSE operation */
339 	unsigned int dsp_max_burst_size_in_ms; /* The maximum size of the host DMA burst in ms */
340 	/*
341 	 * flag to indicate that the DSP pipelines should be kept
342 	 * active or not while suspending the stream
343 	 */
344 	bool suspend_ignored;
345 	struct snd_sof_pcm_stream_pipeline_list pipeline_list;
346 
347 	/* used by IPC implementation and core does not touch it */
348 	void *private;
349 };
350 
351 /* ALSA SOF PCM device */
352 struct snd_sof_pcm {
353 	struct snd_soc_component *scomp;
354 	struct snd_sof_pcm_stream stream[2];
355 	struct list_head list;	/* list in sdev pcm list */
356 	struct snd_pcm_hw_params params[2];
357 	struct snd_sof_platform_stream_params platform_params[2];
358 	bool prepared[2]; /* PCM_PARAMS set successfully */
359 	bool setup_done[2]; /* the setup of the SOF PCM device is done */
360 	bool pending_stop[2]; /* only used if (!pcm_ops->platform_stop_during_hw_free) */
361 
362 	/* Must be last - ends in a flex-array member. */
363 	struct snd_soc_tplg_pcm pcm;
364 };
365 
366 struct snd_sof_led_control {
367 	unsigned int use_led;
368 	unsigned int direction;
369 	int led_value;
370 };
371 
372 /* ALSA SOF Kcontrol device */
373 struct snd_sof_control {
374 	struct snd_soc_component *scomp;
375 	const char *name;
376 	int comp_id;
377 	int min_volume_step; /* min volume step for volume_table */
378 	int max_volume_step; /* max volume step for volume_table */
379 	int num_channels;
380 	unsigned int access;
381 	int info_type;
382 	int index; /* pipeline ID */
383 	void *priv; /* private data copied from topology */
384 	size_t priv_size; /* size of private data */
385 	size_t max_size;
386 	void *ipc_control_data;
387 	void *old_ipc_control_data;
388 	int max; /* applicable to volume controls */
389 	u32 size;	/* cdata size */
390 	u32 *volume_table; /* volume table computed from tlv data*/
391 
392 	struct list_head list;	/* list in sdev control list */
393 
394 	struct snd_sof_led_control led_ctl;
395 
396 	/* if true, the control's data needs to be updated from Firmware */
397 	bool comp_data_dirty;
398 };
399 
400 /** struct snd_sof_dai_link - DAI link info
401  * @tuples: array of parsed tuples
402  * @num_tuples: number of tuples in the tuples array
403  * @link: Pointer to snd_soc_dai_link
404  * @hw_configs: Pointer to hw configs in topology
405  * @num_hw_configs: Number of hw configs in topology
406  * @default_hw_cfg_id: Default hw config ID
407  * @type: DAI type
408  * @list: item in snd_sof_dev dai_link list
409  */
410 struct snd_sof_dai_link {
411 	struct snd_sof_tuple *tuples;
412 	int num_tuples;
413 	struct snd_soc_dai_link *link;
414 	struct snd_soc_tplg_hw_config *hw_configs;
415 	int num_hw_configs;
416 	int default_hw_cfg_id;
417 	int type;
418 	struct list_head list;
419 };
420 
421 /* ASoC SOF DAPM widget */
422 struct snd_sof_widget {
423 	struct snd_soc_component *scomp;
424 	int comp_id;
425 	int pipeline_id;
426 	/*
427 	 * the prepared flag is used to indicate that a widget has been prepared for getting set
428 	 * up in the DSP.
429 	 */
430 	bool prepared;
431 
432 	struct mutex setup_mutex; /* to protect the swidget setup and free operations */
433 
434 	/*
435 	 * use_count is protected by the PCM mutex held by the core and the
436 	 * setup_mutex against non stream domain races (kcontrol access for
437 	 * example)
438 	 */
439 	int use_count;
440 
441 	int core;
442 	int id; /* id is the DAPM widget type */
443 	/*
444 	 * Instance ID is set dynamically when the widget gets set up in the FW. It should be
445 	 * unique for each module type across all pipelines. This will not be used in SOF_IPC.
446 	 */
447 	int instance_id;
448 
449 	/*
450 	 * Flag indicating if the widget should be set up dynamically when a PCM is opened.
451 	 * This flag is only set for the scheduler type widget in topology. During topology
452 	 * loading, this flag is propagated to all the widgets belonging to the same pipeline.
453 	 * When this flag is not set, a widget is set up at the time of topology loading
454 	 * and retained until the DSP enters D3. It will need to be set up again when resuming
455 	 * from D3.
456 	 */
457 	bool dynamic_pipeline_widget;
458 
459 	/* Scheduling domain (enum sof_comp_domain), unset, Low Latency, or Data Processing */
460 	u32 comp_domain;
461 
462 	/* The values below are added to mod_init pay load if comp_domain indicates DP component */
463 	u32 dp_domain_id;	/* DP process userspace domain ID */
464 	u32 dp_stack_bytes;	/* DP process stack size requirement in bytes */
465 	u32 dp_heap_bytes;	/* DP process heap size requirement in bytes */
466 
467 	struct snd_soc_dapm_widget *widget;
468 	struct list_head list;	/* list in sdev widget list */
469 	struct snd_sof_pipeline *spipe;
470 	void *module_info;
471 
472 	const guid_t uuid;
473 
474 	int num_tuples;
475 	struct snd_sof_tuple *tuples;
476 
477 	/*
478 	 * The allowed range for num_input/output_pins is [0, SOF_WIDGET_MAX_NUM_PINS].
479 	 * Widgets may have zero input or output pins, for example the tone widget has
480 	 * zero input pins.
481 	 */
482 	u32 num_input_pins;
483 	u32 num_output_pins;
484 
485 	/*
486 	 * The input/output pin binding array, it takes the form of
487 	 * [widget_name_connected_to_pin0, widget_name_connected_to_pin1, ...],
488 	 * with the index as the queue ID.
489 	 *
490 	 * The array is used for special pin binding. Note that even if there
491 	 * is only one input/output pin requires special pin binding, pin binding
492 	 * should be defined for all input/output pins in topology, for pin(s) that
493 	 * are not used, give the value "NotConnected".
494 	 *
495 	 * If pin binding is not defined in topology, nothing to parse in the kernel,
496 	 * input_pin_binding and output_pin_binding shall be NULL.
497 	 */
498 	char **input_pin_binding;
499 	char **output_pin_binding;
500 
501 	struct ida output_queue_ida;
502 	struct ida input_queue_ida;
503 
504 	void *private;		/* core does not touch this */
505 };
506 
507 /** struct snd_sof_pipeline - ASoC SOF pipeline
508  * @pipe_widget: Pointer to the pipeline widget
509  * @started_count: Count of number of PCM's that have started this pipeline
510  * @paused_count: Count of number of PCM's that have started and have currently paused this
511 		  pipeline
512  * @complete: flag used to indicate that pipeline set up is complete.
513  * @core_mask: Mask containing target cores for all modules in the pipeline
514  * @list: List item in sdev pipeline_list
515  * @direction_valid: flag indicating if the direction is set in topology
516  * @direction: pipeline direction set in topology, valid is direction_valid is true
517  *
518  */
519 struct snd_sof_pipeline {
520 	struct snd_sof_widget *pipe_widget;
521 	int started_count;
522 	int paused_count;
523 	int complete;
524 	unsigned long core_mask;
525 	struct list_head list;
526 	bool direction_valid;
527 	u32 direction;
528 };
529 
530 /* ASoC SOF DAPM route */
531 struct snd_sof_route {
532 	struct snd_soc_component *scomp;
533 
534 	struct snd_soc_dapm_route *route;
535 	struct list_head list;	/* list in sdev route list */
536 	struct snd_sof_widget *src_widget;
537 	struct snd_sof_widget *sink_widget;
538 	bool setup;
539 
540 	int src_queue_id;
541 	int dst_queue_id;
542 
543 	void *private;
544 };
545 
546 /* ASoC DAI device */
547 struct snd_sof_dai {
548 	struct snd_soc_component *scomp;
549 	const char *name;
550 	u32 type;
551 
552 	int number_configs;
553 	int current_config;
554 	struct list_head list;	/* list in sdev dai list */
555 	/* core should not touch this */
556 	const void *platform_private;
557 	void *private;
558 };
559 
560 /*
561  * Kcontrols.
562  */
563 
564 int snd_sof_volume_get(struct snd_kcontrol *kcontrol,
565 		       struct snd_ctl_elem_value *ucontrol);
566 int snd_sof_volume_put(struct snd_kcontrol *kcontrol,
567 		       struct snd_ctl_elem_value *ucontrol);
568 int snd_sof_volume_info(struct snd_kcontrol *kcontrol,
569 			struct snd_ctl_elem_info *uinfo);
570 int snd_sof_switch_get(struct snd_kcontrol *kcontrol,
571 		       struct snd_ctl_elem_value *ucontrol);
572 int snd_sof_switch_put(struct snd_kcontrol *kcontrol,
573 		       struct snd_ctl_elem_value *ucontrol);
574 int snd_sof_enum_get(struct snd_kcontrol *kcontrol,
575 		     struct snd_ctl_elem_value *ucontrol);
576 int snd_sof_enum_put(struct snd_kcontrol *kcontrol,
577 		     struct snd_ctl_elem_value *ucontrol);
578 int snd_sof_bytes_get(struct snd_kcontrol *kcontrol,
579 		      struct snd_ctl_elem_value *ucontrol);
580 int snd_sof_bytes_put(struct snd_kcontrol *kcontrol,
581 		      struct snd_ctl_elem_value *ucontrol);
582 int snd_sof_bytes_ext_put(struct snd_kcontrol *kcontrol,
583 			  const unsigned int __user *binary_data,
584 			  unsigned int size);
585 int snd_sof_bytes_ext_get(struct snd_kcontrol *kcontrol,
586 			  unsigned int __user *binary_data,
587 			  unsigned int size);
588 int snd_sof_bytes_ext_volatile_get(struct snd_kcontrol *kcontrol, unsigned int __user *binary_data,
589 				   unsigned int size);
590 void snd_sof_control_notify(struct snd_sof_dev *sdev,
591 			    struct sof_ipc_ctrl_data *cdata);
592 
593 /*
594  * Topology.
595  * There is no snd_sof_free_topology since topology components will
596  * be freed by snd_soc_unregister_component,
597  */
598 int snd_sof_load_topology(struct snd_soc_component *scomp, const char *file);
599 
600 /*
601  * Stream IPC
602  */
603 int snd_sof_ipc_stream_posn(struct snd_soc_component *scomp,
604 			    struct snd_sof_pcm *spcm, int direction,
605 			    struct sof_ipc_stream_posn *posn);
606 
607 struct snd_sof_widget *snd_sof_find_swidget(struct snd_soc_component *scomp,
608 					    const char *name);
609 struct snd_sof_widget *
610 snd_sof_find_swidget_sname(struct snd_soc_component *scomp,
611 			   const char *pcm_name, int dir);
612 struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp,
613 				     const char *name);
614 
615 static inline
616 struct snd_sof_pcm *snd_sof_find_spcm_dai(struct snd_soc_component *scomp,
617 					  struct snd_soc_pcm_runtime *rtd)
618 {
619 	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
620 	struct snd_sof_pcm *spcm;
621 
622 	list_for_each_entry(spcm, &sdev->pcm_list, list) {
623 		if (le32_to_cpu(spcm->pcm.dai_id) == rtd->dai_link->id)
624 			return spcm;
625 	}
626 
627 	return NULL;
628 }
629 
630 struct snd_sof_pcm *snd_sof_find_spcm_name(struct snd_soc_component *scomp,
631 					   const char *name);
632 struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_soc_component *scomp,
633 					   unsigned int comp_id,
634 					   int *direction);
635 void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream);
636 void snd_sof_pcm_init_elapsed_work(struct work_struct *work);
637 
638 /*
639  * snd_sof_pcm specific wrappers for dev_dbg() and dev_err() to provide
640  * consistent and useful prints.
641  */
642 #define spcm_dbg(__spcm, __dir, __fmt, ...)					\
643 	dev_dbg((__spcm)->scomp->dev, "pcm%u (%s), dir %d: " __fmt,		\
644 		(__spcm)->pcm.pcm_id, (__spcm)->pcm.pcm_name, __dir,		\
645 		##__VA_ARGS__)
646 
647 #define spcm_dbg_ratelimited(__spcm, __dir, __fmt, ...)				\
648 	dev_dbg_ratelimited((__spcm)->scomp->dev, "pcm%u (%s), dir %d: " __fmt,	\
649 		(__spcm)->pcm.pcm_id, (__spcm)->pcm.pcm_name, __dir,		\
650 		##__VA_ARGS__)
651 
652 #define spcm_err(__spcm, __dir, __fmt, ...)					\
653 	dev_err((__spcm)->scomp->dev, "%s: pcm%u (%s), dir %d: " __fmt,		\
654 		__func__, (__spcm)->pcm.pcm_id, (__spcm)->pcm.pcm_name, __dir,	\
655 		##__VA_ARGS__)
656 
657 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMPRESS)
658 void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream);
659 void snd_sof_compr_init_elapsed_work(struct work_struct *work);
660 #else
661 static inline void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream) { }
662 static inline void snd_sof_compr_init_elapsed_work(struct work_struct *work) { }
663 #endif
664 
665 /* DAI link fixup */
666 int sof_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params);
667 
668 /* PM */
669 bool snd_sof_stream_suspend_ignored(struct snd_sof_dev *sdev);
670 bool snd_sof_dsp_only_d0i3_compatible_stream_active(struct snd_sof_dev *sdev);
671 
672 /* Machine driver enumeration */
673 int sof_machine_register(struct snd_sof_dev *sdev, void *pdata);
674 void sof_machine_unregister(struct snd_sof_dev *sdev, void *pdata);
675 
676 int sof_widget_setup(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
677 int sof_widget_free(struct snd_sof_dev *sdev, struct snd_sof_widget *swidget);
678 int sof_route_setup(struct snd_sof_dev *sdev, struct snd_soc_dapm_widget *wsource,
679 		    struct snd_soc_dapm_widget *wsink);
680 
681 /* PCM */
682 int sof_widget_list_setup(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm,
683 			  struct snd_pcm_hw_params *fe_params,
684 			  struct snd_sof_platform_stream_params *platform_params,
685 			  int dir);
686 int sof_widget_list_prepare(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm,
687 			    struct snd_pcm_hw_params *fe_params,
688 			    struct snd_sof_platform_stream_params *platform_params,
689 			    int dir);
690 void sof_widget_list_unprepare(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm, int dir);
691 int sof_widget_list_free(struct snd_sof_dev *sdev, struct snd_sof_pcm *spcm, int dir);
692 int sof_pcm_dsp_pcm_free(struct snd_pcm_substream *substream, struct snd_sof_dev *sdev,
693 			 struct snd_sof_pcm *spcm);
694 int sof_pcm_free_all_streams(struct snd_sof_dev *sdev);
695 int get_token_u32(void *elem, void *object, u32 offset);
696 int get_token_u16(void *elem, void *object, u32 offset);
697 int get_token_comp_format(void *elem, void *object, u32 offset);
698 int get_token_dai_type(void *elem, void *object, u32 offset);
699 int get_token_uuid(void *elem, void *object, u32 offset);
700 int get_token_string(void *elem, void *object, u32 offset);
701 int sof_update_ipc_object(struct snd_soc_component *scomp, void *object, enum sof_tokens token_id,
702 			  struct snd_sof_tuple *tuples, int num_tuples,
703 			  size_t object_size, int token_instance_num);
704 u32 vol_compute_gain(u32 value, int *tlv);
705 #endif
706