1 /* SPDX-License-Identifier: GPL-2.0
2  *
3  * linux/sound/soc-dai.h -- ALSA SoC Layer
4  *
5  * Copyright:	2005-2008 Wolfson Microelectronics. PLC.
6  *
7  * Digital Audio Interface (DAI) API.
8  */
9 
10 #ifndef __LINUX_SND_SOC_DAI_H
11 #define __LINUX_SND_SOC_DAI_H
12 
13 
14 #include <linux/list.h>
15 #include <sound/asoc.h>
16 
17 struct snd_pcm_substream;
18 struct snd_soc_dapm_widget;
19 struct snd_compr_stream;
20 
21 /*
22  * DAI hardware audio formats.
23  *
24  * Describes the physical PCM data formating and clocking. Add new formats
25  * to the end.
26  */
27 #define SND_SOC_DAIFMT_I2S		SND_SOC_DAI_FORMAT_I2S
28 #define SND_SOC_DAIFMT_RIGHT_J		SND_SOC_DAI_FORMAT_RIGHT_J
29 #define SND_SOC_DAIFMT_LEFT_J		SND_SOC_DAI_FORMAT_LEFT_J
30 #define SND_SOC_DAIFMT_DSP_A		SND_SOC_DAI_FORMAT_DSP_A
31 #define SND_SOC_DAIFMT_DSP_B		SND_SOC_DAI_FORMAT_DSP_B
32 #define SND_SOC_DAIFMT_AC97		SND_SOC_DAI_FORMAT_AC97
33 #define SND_SOC_DAIFMT_PDM		SND_SOC_DAI_FORMAT_PDM
34 
35 /* left and right justified also known as MSB and LSB respectively */
36 #define SND_SOC_DAIFMT_MSB		SND_SOC_DAIFMT_LEFT_J
37 #define SND_SOC_DAIFMT_LSB		SND_SOC_DAIFMT_RIGHT_J
38 
39 /* Describes the possible PCM format */
40 /*
41  * use SND_SOC_DAI_FORMAT_xx as eash shift.
42  * see
43  *	snd_soc_runtime_get_dai_fmt()
44  */
45 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT	0
46 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_MASK	(0xFFFF << SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT)
47 #define SND_SOC_POSSIBLE_DAIFMT_I2S		(1 << SND_SOC_DAI_FORMAT_I2S)
48 #define SND_SOC_POSSIBLE_DAIFMT_RIGHT_J		(1 << SND_SOC_DAI_FORMAT_RIGHT_J)
49 #define SND_SOC_POSSIBLE_DAIFMT_LEFT_J		(1 << SND_SOC_DAI_FORMAT_LEFT_J)
50 #define SND_SOC_POSSIBLE_DAIFMT_DSP_A		(1 << SND_SOC_DAI_FORMAT_DSP_A)
51 #define SND_SOC_POSSIBLE_DAIFMT_DSP_B		(1 << SND_SOC_DAI_FORMAT_DSP_B)
52 #define SND_SOC_POSSIBLE_DAIFMT_AC97		(1 << SND_SOC_DAI_FORMAT_AC97)
53 #define SND_SOC_POSSIBLE_DAIFMT_PDM		(1 << SND_SOC_DAI_FORMAT_PDM)
54 
55 /*
56  * DAI Clock gating.
57  *
58  * DAI bit clocks can be gated (disabled) when the DAI is not
59  * sending or receiving PCM data in a frame. This can be used to save power.
60  */
61 #define SND_SOC_DAIFMT_CONT		(1 << 4) /* continuous clock */
62 #define SND_SOC_DAIFMT_GATED		(0 << 4) /* clock is gated */
63 
64 /* Describes the possible PCM format */
65 /*
66  * define GATED -> CONT. GATED will be selected if both are selected.
67  * see
68  *	snd_soc_runtime_get_dai_fmt()
69  */
70 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT	16
71 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_MASK	(0xFFFF	<< SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
72 #define SND_SOC_POSSIBLE_DAIFMT_GATED		(0x1ULL	<< SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
73 #define SND_SOC_POSSIBLE_DAIFMT_CONT		(0x2ULL	<< SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
74 
75 /*
76  * DAI hardware signal polarity.
77  *
78  * Specifies whether the DAI can also support inverted clocks for the specified
79  * format.
80  *
81  * BCLK:
82  * - "normal" polarity means signal is available at rising edge of BCLK
83  * - "inverted" polarity means signal is available at falling edge of BCLK
84  *
85  * FSYNC "normal" polarity depends on the frame format:
86  * - I2S: frame consists of left then right channel data. Left channel starts
87  *      with falling FSYNC edge, right channel starts with rising FSYNC edge.
88  * - Left/Right Justified: frame consists of left then right channel data.
89  *      Left channel starts with rising FSYNC edge, right channel starts with
90  *      falling FSYNC edge.
91  * - DSP A/B: Frame starts with rising FSYNC edge.
92  * - AC97: Frame starts with rising FSYNC edge.
93  *
94  * "Negative" FSYNC polarity is the one opposite of "normal" polarity.
95  */
96 #define SND_SOC_DAIFMT_NB_NF		(0 << 8) /* normal bit clock + frame */
97 #define SND_SOC_DAIFMT_NB_IF		(2 << 8) /* normal BCLK + inv FRM */
98 #define SND_SOC_DAIFMT_IB_NF		(3 << 8) /* invert BCLK + nor FRM */
99 #define SND_SOC_DAIFMT_IB_IF		(4 << 8) /* invert BCLK + FRM */
100 
101 /* Describes the possible PCM format */
102 #define SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT	32
103 #define SND_SOC_POSSIBLE_DAIFMT_INV_MASK	(0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
104 #define SND_SOC_POSSIBLE_DAIFMT_NB_NF		(0x1ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
105 #define SND_SOC_POSSIBLE_DAIFMT_NB_IF		(0x2ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
106 #define SND_SOC_POSSIBLE_DAIFMT_IB_NF		(0x4ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
107 #define SND_SOC_POSSIBLE_DAIFMT_IB_IF		(0x8ULL    << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
108 
109 /*
110  * DAI hardware clock providers/consumers
111  *
112  * This is wrt the codec, the inverse is true for the interface
113  * i.e. if the codec is clk and FRM provider then the interface is
114  * clk and frame consumer.
115  */
116 #define SND_SOC_DAIFMT_CBP_CFP		(1 << 12) /* codec clk provider & frame provider */
117 #define SND_SOC_DAIFMT_CBC_CFP		(2 << 12) /* codec clk consumer & frame provider */
118 #define SND_SOC_DAIFMT_CBP_CFC		(3 << 12) /* codec clk provider & frame consumer */
119 #define SND_SOC_DAIFMT_CBC_CFC		(4 << 12) /* codec clk consumer & frame consumer */
120 
121 /* previous definitions kept for backwards-compatibility, do not use in new contributions */
122 #define SND_SOC_DAIFMT_CBM_CFM		SND_SOC_DAIFMT_CBP_CFP
123 #define SND_SOC_DAIFMT_CBS_CFM		SND_SOC_DAIFMT_CBC_CFP
124 #define SND_SOC_DAIFMT_CBM_CFS		SND_SOC_DAIFMT_CBP_CFC
125 #define SND_SOC_DAIFMT_CBS_CFS		SND_SOC_DAIFMT_CBC_CFC
126 
127 /* when passed to set_fmt directly indicate if the device is provider or consumer */
128 #define SND_SOC_DAIFMT_BP_FP		SND_SOC_DAIFMT_CBP_CFP
129 #define SND_SOC_DAIFMT_BC_FP		SND_SOC_DAIFMT_CBC_CFP
130 #define SND_SOC_DAIFMT_BP_FC		SND_SOC_DAIFMT_CBP_CFC
131 #define SND_SOC_DAIFMT_BC_FC		SND_SOC_DAIFMT_CBC_CFC
132 
133 /* Describes the possible PCM format */
134 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT	48
135 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK	(0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
136 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP			(0x1ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
137 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP			(0x2ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
138 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC			(0x4ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
139 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC			(0x8ULL    << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
140 
141 #define SND_SOC_DAIFMT_FORMAT_MASK		0x000f
142 #define SND_SOC_DAIFMT_CLOCK_MASK		0x00f0
143 #define SND_SOC_DAIFMT_INV_MASK			0x0f00
144 #define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK	0xf000
145 
146 #define SND_SOC_DAIFMT_MASTER_MASK	SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK
147 
148 /*
149  * Master Clock Directions
150  */
151 #define SND_SOC_CLOCK_IN		0
152 #define SND_SOC_CLOCK_OUT		1
153 
154 #define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\
155 			       SNDRV_PCM_FMTBIT_S16_LE |\
156 			       SNDRV_PCM_FMTBIT_S16_BE |\
157 			       SNDRV_PCM_FMTBIT_S20_3LE |\
158 			       SNDRV_PCM_FMTBIT_S20_3BE |\
159 			       SNDRV_PCM_FMTBIT_S20_LE |\
160 			       SNDRV_PCM_FMTBIT_S20_BE |\
161 			       SNDRV_PCM_FMTBIT_S24_3LE |\
162 			       SNDRV_PCM_FMTBIT_S24_3BE |\
163                                SNDRV_PCM_FMTBIT_S32_LE |\
164                                SNDRV_PCM_FMTBIT_S32_BE)
165 
166 struct snd_soc_dai_driver;
167 struct snd_soc_dai;
168 struct snd_ac97_bus_ops;
169 
170 /* Digital Audio Interface clocking API.*/
171 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
172 	unsigned int freq, int dir);
173 
174 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
175 	int div_id, int div);
176 
177 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
178 	int pll_id, int source, unsigned int freq_in, unsigned int freq_out);
179 
180 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
181 
182 /* Digital Audio interface formatting */
183 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd);
184 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority);
185 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
186 
187 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
188 	unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);
189 
190 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
191 	unsigned int tx_num, unsigned int *tx_slot,
192 	unsigned int rx_num, unsigned int *rx_slot);
193 
194 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
195 
196 /* Digital Audio Interface mute */
197 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
198 			     int direction);
199 
200 
201 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
202 		unsigned int *tx_num, unsigned int *tx_slot,
203 		unsigned int *rx_num, unsigned int *rx_slot);
204 
205 int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);
206 
207 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
208 			  struct snd_pcm_substream *substream,
209 			  struct snd_pcm_hw_params *params);
210 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
211 			 struct snd_pcm_substream *substream,
212 			 int rollback);
213 int snd_soc_dai_startup(struct snd_soc_dai *dai,
214 			struct snd_pcm_substream *substream);
215 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
216 			  struct snd_pcm_substream *substream, int rollback);
217 void snd_soc_dai_suspend(struct snd_soc_dai *dai);
218 void snd_soc_dai_resume(struct snd_soc_dai *dai);
219 int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
220 			     struct snd_soc_pcm_runtime *rtd, int num);
221 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream);
222 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link);
223 void snd_soc_dai_action(struct snd_soc_dai *dai,
224 			int stream, int action);
snd_soc_dai_activate(struct snd_soc_dai * dai,int stream)225 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
226 					int stream)
227 {
228 	snd_soc_dai_action(dai, stream,  1);
229 }
snd_soc_dai_deactivate(struct snd_soc_dai * dai,int stream)230 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
231 					  int stream)
232 {
233 	snd_soc_dai_action(dai, stream, -1);
234 }
235 int snd_soc_dai_active(struct snd_soc_dai *dai);
236 
237 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
238 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
239 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
240 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
241 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
242 			    int rollback);
243 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
244 				    int cmd);
245 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
246 			   snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
247 
248 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
249 			      struct snd_compr_stream *cstream);
250 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
251 				struct snd_compr_stream *cstream,
252 				int rollback);
253 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
254 			      struct snd_compr_stream *cstream, int cmd);
255 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
256 				 struct snd_compr_stream *cstream,
257 				 struct snd_compr_params *params);
258 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
259 				 struct snd_compr_stream *cstream,
260 				 struct snd_codec *params);
261 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
262 			  struct snd_compr_stream *cstream,
263 			  size_t bytes);
264 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
265 			      struct snd_compr_stream *cstream,
266 			      struct snd_compr_tstamp *tstamp);
267 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
268 				   struct snd_compr_stream *cstream,
269 				   struct snd_compr_metadata *metadata);
270 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
271 				   struct snd_compr_stream *cstream,
272 				   struct snd_compr_metadata *metadata);
273 
274 struct snd_soc_dai_ops {
275 	/*
276 	 * DAI clocking configuration, all optional.
277 	 * Called by soc_card drivers, normally in their hw_params.
278 	 */
279 	int (*set_sysclk)(struct snd_soc_dai *dai,
280 		int clk_id, unsigned int freq, int dir);
281 	int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
282 		unsigned int freq_in, unsigned int freq_out);
283 	int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
284 	int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
285 
286 	/*
287 	 * DAI format configuration
288 	 * Called by soc_card drivers, normally in their hw_params.
289 	 */
290 	int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
291 	int (*xlate_tdm_slot_mask)(unsigned int slots,
292 		unsigned int *tx_mask, unsigned int *rx_mask);
293 	int (*set_tdm_slot)(struct snd_soc_dai *dai,
294 		unsigned int tx_mask, unsigned int rx_mask,
295 		int slots, int slot_width);
296 	int (*set_channel_map)(struct snd_soc_dai *dai,
297 		unsigned int tx_num, unsigned int *tx_slot,
298 		unsigned int rx_num, unsigned int *rx_slot);
299 	int (*get_channel_map)(struct snd_soc_dai *dai,
300 			unsigned int *tx_num, unsigned int *tx_slot,
301 			unsigned int *rx_num, unsigned int *rx_slot);
302 	int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
303 
304 	int (*set_stream)(struct snd_soc_dai *dai,
305 			  void *stream, int direction);
306 	void *(*get_stream)(struct snd_soc_dai *dai, int direction);
307 
308 	/*
309 	 * DAI digital mute - optional.
310 	 * Called by soc-core to minimise any pops.
311 	 */
312 	int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
313 
314 	/*
315 	 * ALSA PCM audio operations - all optional.
316 	 * Called by soc-core during audio PCM operations.
317 	 */
318 	int (*startup)(struct snd_pcm_substream *,
319 		struct snd_soc_dai *);
320 	void (*shutdown)(struct snd_pcm_substream *,
321 		struct snd_soc_dai *);
322 	int (*hw_params)(struct snd_pcm_substream *,
323 		struct snd_pcm_hw_params *, struct snd_soc_dai *);
324 	int (*hw_free)(struct snd_pcm_substream *,
325 		struct snd_soc_dai *);
326 	int (*prepare)(struct snd_pcm_substream *,
327 		struct snd_soc_dai *);
328 	/*
329 	 * NOTE: Commands passed to the trigger function are not necessarily
330 	 * compatible with the current state of the dai. For example this
331 	 * sequence of commands is possible: START STOP STOP.
332 	 * So do not unconditionally use refcounting functions in the trigger
333 	 * function, e.g. clk_enable/disable.
334 	 */
335 	int (*trigger)(struct snd_pcm_substream *, int,
336 		struct snd_soc_dai *);
337 	int (*bespoke_trigger)(struct snd_pcm_substream *, int,
338 		struct snd_soc_dai *);
339 	/*
340 	 * For hardware based FIFO caused delay reporting.
341 	 * Optional.
342 	 */
343 	snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
344 		struct snd_soc_dai *);
345 
346 	/*
347 	 * Format list for auto selection.
348 	 * Format will be increased if priority format was
349 	 * not selected.
350 	 * see
351 	 *	snd_soc_dai_get_fmt()
352 	 */
353 	u64 *auto_selectable_formats;
354 	int num_auto_selectable_formats;
355 
356 	/* bit field */
357 	unsigned int no_capture_mute:1;
358 };
359 
360 struct snd_soc_cdai_ops {
361 	/*
362 	 * for compress ops
363 	 */
364 	int (*startup)(struct snd_compr_stream *,
365 			struct snd_soc_dai *);
366 	int (*shutdown)(struct snd_compr_stream *,
367 			struct snd_soc_dai *);
368 	int (*set_params)(struct snd_compr_stream *,
369 			struct snd_compr_params *, struct snd_soc_dai *);
370 	int (*get_params)(struct snd_compr_stream *,
371 			struct snd_codec *, struct snd_soc_dai *);
372 	int (*set_metadata)(struct snd_compr_stream *,
373 			struct snd_compr_metadata *, struct snd_soc_dai *);
374 	int (*get_metadata)(struct snd_compr_stream *,
375 			struct snd_compr_metadata *, struct snd_soc_dai *);
376 	int (*trigger)(struct snd_compr_stream *, int,
377 			struct snd_soc_dai *);
378 	int (*pointer)(struct snd_compr_stream *,
379 			struct snd_compr_tstamp *, struct snd_soc_dai *);
380 	int (*ack)(struct snd_compr_stream *, size_t,
381 			struct snd_soc_dai *);
382 };
383 
384 /*
385  * Digital Audio Interface Driver.
386  *
387  * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
388  * operations and capabilities. Codec and platform drivers will register this
389  * structure for every DAI they have.
390  *
391  * This structure covers the clocking, formating and ALSA operations for each
392  * interface.
393  */
394 struct snd_soc_dai_driver {
395 	/* DAI description */
396 	const char *name;
397 	unsigned int id;
398 	unsigned int base;
399 	struct snd_soc_dobj dobj;
400 
401 	/* DAI driver callbacks */
402 	int (*probe)(struct snd_soc_dai *dai);
403 	int (*remove)(struct snd_soc_dai *dai);
404 	/* compress dai */
405 	int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
406 	/* Optional Callback used at pcm creation*/
407 	int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
408 		       struct snd_soc_dai *dai);
409 
410 	/* ops */
411 	const struct snd_soc_dai_ops *ops;
412 	const struct snd_soc_cdai_ops *cops;
413 
414 	/* DAI capabilities */
415 	struct snd_soc_pcm_stream capture;
416 	struct snd_soc_pcm_stream playback;
417 	unsigned int symmetric_rate:1;
418 	unsigned int symmetric_channels:1;
419 	unsigned int symmetric_sample_bits:1;
420 
421 	/* probe ordering - for components with runtime dependencies */
422 	int probe_order;
423 	int remove_order;
424 };
425 
426 /*
427  * Digital Audio Interface runtime data.
428  *
429  * Holds runtime data for a DAI.
430  */
431 struct snd_soc_dai {
432 	const char *name;
433 	int id;
434 	struct device *dev;
435 
436 	/* driver ops */
437 	struct snd_soc_dai_driver *driver;
438 
439 	/* DAI runtime info */
440 	unsigned int stream_active[SNDRV_PCM_STREAM_LAST + 1]; /* usage count */
441 
442 	struct snd_soc_dapm_widget *playback_widget;
443 	struct snd_soc_dapm_widget *capture_widget;
444 
445 	/* DAI DMA data */
446 	void *playback_dma_data;
447 	void *capture_dma_data;
448 
449 	/* Symmetry data - only valid if symmetry is being enforced */
450 	unsigned int rate;
451 	unsigned int channels;
452 	unsigned int sample_bits;
453 
454 	/* parent platform/codec */
455 	struct snd_soc_component *component;
456 
457 	/* CODEC TDM slot masks and params (for fixup) */
458 	unsigned int tx_mask;
459 	unsigned int rx_mask;
460 
461 	struct list_head list;
462 
463 	/* function mark */
464 	struct snd_pcm_substream *mark_startup;
465 	struct snd_pcm_substream *mark_hw_params;
466 	struct snd_pcm_substream *mark_trigger;
467 	struct snd_compr_stream  *mark_compr_startup;
468 
469 	/* bit field */
470 	unsigned int probed:1;
471 };
472 
473 static inline struct snd_soc_pcm_stream *
snd_soc_dai_get_pcm_stream(const struct snd_soc_dai * dai,int stream)474 snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
475 {
476 	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
477 		&dai->driver->playback : &dai->driver->capture;
478 }
479 
480 static inline
snd_soc_dai_get_widget(struct snd_soc_dai * dai,int stream)481 struct snd_soc_dapm_widget *snd_soc_dai_get_widget(
482 	struct snd_soc_dai *dai, int stream)
483 {
484 	return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
485 		dai->playback_widget : dai->capture_widget;
486 }
487 
snd_soc_dai_get_dma_data(const struct snd_soc_dai * dai,const struct snd_pcm_substream * ss)488 static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai,
489 					     const struct snd_pcm_substream *ss)
490 {
491 	return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
492 		dai->playback_dma_data : dai->capture_dma_data;
493 }
494 
snd_soc_dai_set_dma_data(struct snd_soc_dai * dai,const struct snd_pcm_substream * ss,void * data)495 static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
496 					    const struct snd_pcm_substream *ss,
497 					    void *data)
498 {
499 	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)
500 		dai->playback_dma_data = data;
501 	else
502 		dai->capture_dma_data = data;
503 }
504 
snd_soc_dai_init_dma_data(struct snd_soc_dai * dai,void * playback,void * capture)505 static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai,
506 					     void *playback, void *capture)
507 {
508 	dai->playback_dma_data = playback;
509 	dai->capture_dma_data = capture;
510 }
511 
snd_soc_dai_set_drvdata(struct snd_soc_dai * dai,void * data)512 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
513 		void *data)
514 {
515 	dev_set_drvdata(dai->dev, data);
516 }
517 
snd_soc_dai_get_drvdata(struct snd_soc_dai * dai)518 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
519 {
520 	return dev_get_drvdata(dai->dev);
521 }
522 
523 /**
524  * snd_soc_dai_set_stream() - Configures a DAI for stream operation
525  * @dai: DAI
526  * @stream: STREAM (opaque structure depending on DAI type)
527  * @direction: Stream direction(Playback/Capture)
528  * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
529  * the ASoC stream direction to configure sink/source ports.
530  * Playback maps to source ports and Capture for sink ports.
531  *
532  * This should be invoked with NULL to clear the stream set previously.
533  * Returns 0 on success, a negative error code otherwise.
534  */
snd_soc_dai_set_stream(struct snd_soc_dai * dai,void * stream,int direction)535 static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
536 					 void *stream, int direction)
537 {
538 	if (dai->driver->ops->set_stream)
539 		return dai->driver->ops->set_stream(dai, stream, direction);
540 	else
541 		return -ENOTSUPP;
542 }
543 
544 /**
545  * snd_soc_dai_get_stream() - Retrieves stream from DAI
546  * @dai: DAI
547  * @direction: Stream direction(Playback/Capture)
548  *
549  * This routine only retrieves that was previously configured
550  * with snd_soc_dai_get_stream()
551  *
552  * Returns pointer to stream or an ERR_PTR value, e.g.
553  * ERR_PTR(-ENOTSUPP) if callback is not supported;
554  */
snd_soc_dai_get_stream(struct snd_soc_dai * dai,int direction)555 static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
556 					   int direction)
557 {
558 	if (dai->driver->ops->get_stream)
559 		return dai->driver->ops->get_stream(dai, direction);
560 	else
561 		return ERR_PTR(-ENOTSUPP);
562 }
563 
564 static inline unsigned int
snd_soc_dai_stream_active(struct snd_soc_dai * dai,int stream)565 snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream)
566 {
567 	return dai->stream_active[stream];
568 }
569 
570 #endif
571