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 /* Describes the possible PCM format */
128 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT 48
129 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
130 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
131 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
132 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
133 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
134
135 #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f
136 #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0
137 #define SND_SOC_DAIFMT_INV_MASK 0x0f00
138 #define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 0xf000
139
140 #define SND_SOC_DAIFMT_MASTER_MASK SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK
141
142 /*
143 * Master Clock Directions
144 */
145 #define SND_SOC_CLOCK_IN 0
146 #define SND_SOC_CLOCK_OUT 1
147
148 #define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\
149 SNDRV_PCM_FMTBIT_S16_LE |\
150 SNDRV_PCM_FMTBIT_S16_BE |\
151 SNDRV_PCM_FMTBIT_S20_3LE |\
152 SNDRV_PCM_FMTBIT_S20_3BE |\
153 SNDRV_PCM_FMTBIT_S20_LE |\
154 SNDRV_PCM_FMTBIT_S20_BE |\
155 SNDRV_PCM_FMTBIT_S24_3LE |\
156 SNDRV_PCM_FMTBIT_S24_3BE |\
157 SNDRV_PCM_FMTBIT_S32_LE |\
158 SNDRV_PCM_FMTBIT_S32_BE)
159
160 struct snd_soc_dai_driver;
161 struct snd_soc_dai;
162 struct snd_ac97_bus_ops;
163
164 /* Digital Audio Interface clocking API.*/
165 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
166 unsigned int freq, int dir);
167
168 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
169 int div_id, int div);
170
171 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
172 int pll_id, int source, unsigned int freq_in, unsigned int freq_out);
173
174 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
175
176 /* Digital Audio interface formatting */
177 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd);
178 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority);
179 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
180
181 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
182 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);
183
184 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
185 unsigned int tx_num, unsigned int *tx_slot,
186 unsigned int rx_num, unsigned int *rx_slot);
187
188 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
189
190 /* Digital Audio Interface mute */
191 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
192 int direction);
193
194
195 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
196 unsigned int *tx_num, unsigned int *tx_slot,
197 unsigned int *rx_num, unsigned int *rx_slot);
198
199 int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);
200
201 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
202 struct snd_pcm_substream *substream,
203 struct snd_pcm_hw_params *params);
204 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
205 struct snd_pcm_substream *substream,
206 int rollback);
207 int snd_soc_dai_startup(struct snd_soc_dai *dai,
208 struct snd_pcm_substream *substream);
209 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
210 struct snd_pcm_substream *substream, int rollback);
211 void snd_soc_dai_suspend(struct snd_soc_dai *dai);
212 void snd_soc_dai_resume(struct snd_soc_dai *dai);
213 int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
214 struct snd_soc_pcm_runtime *rtd, int num);
215 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream);
216 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link);
217 void snd_soc_dai_action(struct snd_soc_dai *dai,
218 int stream, int action);
snd_soc_dai_activate(struct snd_soc_dai * dai,int stream)219 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
220 int stream)
221 {
222 snd_soc_dai_action(dai, stream, 1);
223 }
snd_soc_dai_deactivate(struct snd_soc_dai * dai,int stream)224 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
225 int stream)
226 {
227 snd_soc_dai_action(dai, stream, -1);
228 }
229 int snd_soc_dai_active(struct snd_soc_dai *dai);
230
231 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
232 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
233 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
234 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
235 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
236 int rollback);
237 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
238 int cmd);
239 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
240 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
241
242 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
243 struct snd_compr_stream *cstream);
244 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
245 struct snd_compr_stream *cstream,
246 int rollback);
247 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
248 struct snd_compr_stream *cstream, int cmd);
249 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
250 struct snd_compr_stream *cstream,
251 struct snd_compr_params *params);
252 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
253 struct snd_compr_stream *cstream,
254 struct snd_codec *params);
255 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
256 struct snd_compr_stream *cstream,
257 size_t bytes);
258 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
259 struct snd_compr_stream *cstream,
260 struct snd_compr_tstamp *tstamp);
261 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
262 struct snd_compr_stream *cstream,
263 struct snd_compr_metadata *metadata);
264 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
265 struct snd_compr_stream *cstream,
266 struct snd_compr_metadata *metadata);
267
268 struct snd_soc_dai_ops {
269 /*
270 * DAI clocking configuration, all optional.
271 * Called by soc_card drivers, normally in their hw_params.
272 */
273 int (*set_sysclk)(struct snd_soc_dai *dai,
274 int clk_id, unsigned int freq, int dir);
275 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
276 unsigned int freq_in, unsigned int freq_out);
277 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
278 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
279
280 /*
281 * DAI format configuration
282 * Called by soc_card drivers, normally in their hw_params.
283 */
284 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
285 int (*xlate_tdm_slot_mask)(unsigned int slots,
286 unsigned int *tx_mask, unsigned int *rx_mask);
287 int (*set_tdm_slot)(struct snd_soc_dai *dai,
288 unsigned int tx_mask, unsigned int rx_mask,
289 int slots, int slot_width);
290 int (*set_channel_map)(struct snd_soc_dai *dai,
291 unsigned int tx_num, unsigned int *tx_slot,
292 unsigned int rx_num, unsigned int *rx_slot);
293 int (*get_channel_map)(struct snd_soc_dai *dai,
294 unsigned int *tx_num, unsigned int *tx_slot,
295 unsigned int *rx_num, unsigned int *rx_slot);
296 int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
297
298 int (*set_stream)(struct snd_soc_dai *dai,
299 void *stream, int direction);
300 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
301
302 /*
303 * DAI digital mute - optional.
304 * Called by soc-core to minimise any pops.
305 */
306 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
307
308 /*
309 * ALSA PCM audio operations - all optional.
310 * Called by soc-core during audio PCM operations.
311 */
312 int (*startup)(struct snd_pcm_substream *,
313 struct snd_soc_dai *);
314 void (*shutdown)(struct snd_pcm_substream *,
315 struct snd_soc_dai *);
316 int (*hw_params)(struct snd_pcm_substream *,
317 struct snd_pcm_hw_params *, struct snd_soc_dai *);
318 int (*hw_free)(struct snd_pcm_substream *,
319 struct snd_soc_dai *);
320 int (*prepare)(struct snd_pcm_substream *,
321 struct snd_soc_dai *);
322 /*
323 * NOTE: Commands passed to the trigger function are not necessarily
324 * compatible with the current state of the dai. For example this
325 * sequence of commands is possible: START STOP STOP.
326 * So do not unconditionally use refcounting functions in the trigger
327 * function, e.g. clk_enable/disable.
328 */
329 int (*trigger)(struct snd_pcm_substream *, int,
330 struct snd_soc_dai *);
331 int (*bespoke_trigger)(struct snd_pcm_substream *, int,
332 struct snd_soc_dai *);
333 /*
334 * For hardware based FIFO caused delay reporting.
335 * Optional.
336 */
337 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
338 struct snd_soc_dai *);
339
340 /*
341 * Format list for auto selection.
342 * Format will be increased if priority format was
343 * not selected.
344 * see
345 * snd_soc_dai_get_fmt()
346 */
347 u64 *auto_selectable_formats;
348 int num_auto_selectable_formats;
349
350 /* bit field */
351 unsigned int no_capture_mute:1;
352 };
353
354 struct snd_soc_cdai_ops {
355 /*
356 * for compress ops
357 */
358 int (*startup)(struct snd_compr_stream *,
359 struct snd_soc_dai *);
360 int (*shutdown)(struct snd_compr_stream *,
361 struct snd_soc_dai *);
362 int (*set_params)(struct snd_compr_stream *,
363 struct snd_compr_params *, struct snd_soc_dai *);
364 int (*get_params)(struct snd_compr_stream *,
365 struct snd_codec *, struct snd_soc_dai *);
366 int (*set_metadata)(struct snd_compr_stream *,
367 struct snd_compr_metadata *, struct snd_soc_dai *);
368 int (*get_metadata)(struct snd_compr_stream *,
369 struct snd_compr_metadata *, struct snd_soc_dai *);
370 int (*trigger)(struct snd_compr_stream *, int,
371 struct snd_soc_dai *);
372 int (*pointer)(struct snd_compr_stream *,
373 struct snd_compr_tstamp *, struct snd_soc_dai *);
374 int (*ack)(struct snd_compr_stream *, size_t,
375 struct snd_soc_dai *);
376 };
377
378 /*
379 * Digital Audio Interface Driver.
380 *
381 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
382 * operations and capabilities. Codec and platform drivers will register this
383 * structure for every DAI they have.
384 *
385 * This structure covers the clocking, formating and ALSA operations for each
386 * interface.
387 */
388 struct snd_soc_dai_driver {
389 /* DAI description */
390 const char *name;
391 unsigned int id;
392 unsigned int base;
393 struct snd_soc_dobj dobj;
394
395 /* DAI driver callbacks */
396 int (*probe)(struct snd_soc_dai *dai);
397 int (*remove)(struct snd_soc_dai *dai);
398 /* compress dai */
399 int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
400 /* Optional Callback used at pcm creation*/
401 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
402 struct snd_soc_dai *dai);
403
404 /* ops */
405 const struct snd_soc_dai_ops *ops;
406 const struct snd_soc_cdai_ops *cops;
407
408 /* DAI capabilities */
409 struct snd_soc_pcm_stream capture;
410 struct snd_soc_pcm_stream playback;
411 unsigned int symmetric_rate:1;
412 unsigned int symmetric_channels:1;
413 unsigned int symmetric_sample_bits:1;
414
415 /* probe ordering - for components with runtime dependencies */
416 int probe_order;
417 int remove_order;
418 };
419
420 /*
421 * Digital Audio Interface runtime data.
422 *
423 * Holds runtime data for a DAI.
424 */
425 struct snd_soc_dai {
426 const char *name;
427 int id;
428 struct device *dev;
429
430 /* driver ops */
431 struct snd_soc_dai_driver *driver;
432
433 /* DAI runtime info */
434 unsigned int stream_active[SNDRV_PCM_STREAM_LAST + 1]; /* usage count */
435
436 struct snd_soc_dapm_widget *playback_widget;
437 struct snd_soc_dapm_widget *capture_widget;
438
439 /* DAI DMA data */
440 void *playback_dma_data;
441 void *capture_dma_data;
442
443 /* Symmetry data - only valid if symmetry is being enforced */
444 unsigned int rate;
445 unsigned int channels;
446 unsigned int sample_bits;
447
448 /* parent platform/codec */
449 struct snd_soc_component *component;
450
451 /* CODEC TDM slot masks and params (for fixup) */
452 unsigned int tx_mask;
453 unsigned int rx_mask;
454
455 struct list_head list;
456
457 /* function mark */
458 struct snd_pcm_substream *mark_startup;
459 struct snd_pcm_substream *mark_hw_params;
460 struct snd_pcm_substream *mark_trigger;
461 struct snd_compr_stream *mark_compr_startup;
462
463 /* bit field */
464 unsigned int probed:1;
465 };
466
467 static inline struct snd_soc_pcm_stream *
snd_soc_dai_get_pcm_stream(const struct snd_soc_dai * dai,int stream)468 snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
469 {
470 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
471 &dai->driver->playback : &dai->driver->capture;
472 }
473
474 static inline
snd_soc_dai_get_widget(struct snd_soc_dai * dai,int stream)475 struct snd_soc_dapm_widget *snd_soc_dai_get_widget(
476 struct snd_soc_dai *dai, int stream)
477 {
478 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
479 dai->playback_widget : dai->capture_widget;
480 }
481
snd_soc_dai_get_dma_data(const struct snd_soc_dai * dai,const struct snd_pcm_substream * ss)482 static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai,
483 const struct snd_pcm_substream *ss)
484 {
485 return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
486 dai->playback_dma_data : dai->capture_dma_data;
487 }
488
snd_soc_dai_set_dma_data(struct snd_soc_dai * dai,const struct snd_pcm_substream * ss,void * data)489 static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
490 const struct snd_pcm_substream *ss,
491 void *data)
492 {
493 if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)
494 dai->playback_dma_data = data;
495 else
496 dai->capture_dma_data = data;
497 }
498
snd_soc_dai_init_dma_data(struct snd_soc_dai * dai,void * playback,void * capture)499 static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai,
500 void *playback, void *capture)
501 {
502 dai->playback_dma_data = playback;
503 dai->capture_dma_data = capture;
504 }
505
snd_soc_dai_set_drvdata(struct snd_soc_dai * dai,void * data)506 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
507 void *data)
508 {
509 dev_set_drvdata(dai->dev, data);
510 }
511
snd_soc_dai_get_drvdata(struct snd_soc_dai * dai)512 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
513 {
514 return dev_get_drvdata(dai->dev);
515 }
516
517 /**
518 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
519 * @dai: DAI
520 * @stream: STREAM (opaque structure depending on DAI type)
521 * @direction: Stream direction(Playback/Capture)
522 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
523 * the ASoC stream direction to configure sink/source ports.
524 * Playback maps to source ports and Capture for sink ports.
525 *
526 * This should be invoked with NULL to clear the stream set previously.
527 * Returns 0 on success, a negative error code otherwise.
528 */
snd_soc_dai_set_stream(struct snd_soc_dai * dai,void * stream,int direction)529 static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
530 void *stream, int direction)
531 {
532 if (dai->driver->ops->set_stream)
533 return dai->driver->ops->set_stream(dai, stream, direction);
534 else
535 return -ENOTSUPP;
536 }
537
538 /**
539 * snd_soc_dai_get_stream() - Retrieves stream from DAI
540 * @dai: DAI
541 * @direction: Stream direction(Playback/Capture)
542 *
543 * This routine only retrieves that was previously configured
544 * with snd_soc_dai_get_stream()
545 *
546 * Returns pointer to stream or an ERR_PTR value, e.g.
547 * ERR_PTR(-ENOTSUPP) if callback is not supported;
548 */
snd_soc_dai_get_stream(struct snd_soc_dai * dai,int direction)549 static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
550 int direction)
551 {
552 if (dai->driver->ops->get_stream)
553 return dai->driver->ops->get_stream(dai, direction);
554 else
555 return ERR_PTR(-ENOTSUPP);
556 }
557
558 static inline unsigned int
snd_soc_dai_stream_active(struct snd_soc_dai * dai,int stream)559 snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream)
560 {
561 return dai->stream_active[stream];
562 }
563
564 #endif
565