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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
17struct snd_pcm_substream;
18struct snd_soc_dapm_widget;
19struct 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
166struct snd_soc_dai_driver;
167struct snd_soc_dai;
168struct snd_ac97_bus_ops;
169
170/* Digital Audio Interface clocking API.*/
171int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
172 unsigned int freq, int dir);
173
174int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
175 int div_id, int div);
176
177int 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
180int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
181
182/* Digital Audio interface formatting */
183int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd);
184u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority);
185int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
186
187int 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
190int 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
194int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
195
196/* Digital Audio Interface mute */
197int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
198 int direction);
199
200
201int 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
205int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);
206
207int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
208 struct snd_pcm_substream *substream,
209 struct snd_pcm_hw_params *params);
210void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
211 struct snd_pcm_substream *substream,
212 int rollback);
213int snd_soc_dai_startup(struct snd_soc_dai *dai,
214 struct snd_pcm_substream *substream);
215void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
216 struct snd_pcm_substream *substream, int rollback);
217void snd_soc_dai_suspend(struct snd_soc_dai *dai);
218void snd_soc_dai_resume(struct snd_soc_dai *dai);
219int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
220 struct snd_soc_pcm_runtime *rtd, int num);
221bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream);
222void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link);
223void snd_soc_dai_action(struct snd_soc_dai *dai,
224 int stream, int action);
225static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
226 int stream)
227{
228 snd_soc_dai_action(dai, stream, 1);
229}
230static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
231 int stream)
232{
233 snd_soc_dai_action(dai, stream, -1);
234}
235int snd_soc_dai_active(struct snd_soc_dai *dai);
236
237int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
238int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
239int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
240int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
241int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
242 int rollback);
243int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
244 int cmd);
245void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
246 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
247
248int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
249 struct snd_compr_stream *cstream);
250void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
251 struct snd_compr_stream *cstream,
252 int rollback);
253int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
254 struct snd_compr_stream *cstream, int cmd);
255int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
256 struct snd_compr_stream *cstream,
257 struct snd_compr_params *params);
258int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
259 struct snd_compr_stream *cstream,
260 struct snd_codec *params);
261int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
262 struct snd_compr_stream *cstream,
263 size_t bytes);
264int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
265 struct snd_compr_stream *cstream,
266 struct snd_compr_tstamp *tstamp);
267int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
268 struct snd_compr_stream *cstream,
269 struct snd_compr_metadata *metadata);
270int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
271 struct snd_compr_stream *cstream,
272 struct snd_compr_metadata *metadata);
273
274const char *snd_soc_dai_name_get(struct snd_soc_dai *dai);
275
276struct snd_soc_dai_ops {
277 /* DAI driver callbacks */
278 int (*probe)(struct snd_soc_dai *dai);
279 int (*remove)(struct snd_soc_dai *dai);
280 /* compress dai */
281 int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
282 /* Optional Callback used at pcm creation*/
283 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
284 struct snd_soc_dai *dai);
285
286 /*
287 * DAI clocking configuration, all optional.
288 * Called by soc_card drivers, normally in their hw_params.
289 */
290 int (*set_sysclk)(struct snd_soc_dai *dai,
291 int clk_id, unsigned int freq, int dir);
292 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
293 unsigned int freq_in, unsigned int freq_out);
294 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
295 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
296
297 /*
298 * DAI format configuration
299 * Called by soc_card drivers, normally in their hw_params.
300 */
301 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
302 int (*xlate_tdm_slot_mask)(unsigned int slots,
303 unsigned int *tx_mask, unsigned int *rx_mask);
304 int (*set_tdm_slot)(struct snd_soc_dai *dai,
305 unsigned int tx_mask, unsigned int rx_mask,
306 int slots, int slot_width);
307 int (*set_channel_map)(struct snd_soc_dai *dai,
308 unsigned int tx_num, unsigned int *tx_slot,
309 unsigned int rx_num, unsigned int *rx_slot);
310 int (*get_channel_map)(struct snd_soc_dai *dai,
311 unsigned int *tx_num, unsigned int *tx_slot,
312 unsigned int *rx_num, unsigned int *rx_slot);
313 int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
314
315 int (*set_stream)(struct snd_soc_dai *dai,
316 void *stream, int direction);
317 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
318
319 /*
320 * DAI digital mute - optional.
321 * Called by soc-core to minimise any pops.
322 */
323 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
324
325 /*
326 * ALSA PCM audio operations - all optional.
327 * Called by soc-core during audio PCM operations.
328 */
329 int (*startup)(struct snd_pcm_substream *,
330 struct snd_soc_dai *);
331 void (*shutdown)(struct snd_pcm_substream *,
332 struct snd_soc_dai *);
333 int (*hw_params)(struct snd_pcm_substream *,
334 struct snd_pcm_hw_params *, struct snd_soc_dai *);
335 int (*hw_free)(struct snd_pcm_substream *,
336 struct snd_soc_dai *);
337 int (*prepare)(struct snd_pcm_substream *,
338 struct snd_soc_dai *);
339 /*
340 * NOTE: Commands passed to the trigger function are not necessarily
341 * compatible with the current state of the dai. For example this
342 * sequence of commands is possible: START STOP STOP.
343 * So do not unconditionally use refcounting functions in the trigger
344 * function, e.g. clk_enable/disable.
345 */
346 int (*trigger)(struct snd_pcm_substream *, int,
347 struct snd_soc_dai *);
348 int (*bespoke_trigger)(struct snd_pcm_substream *, int,
349 struct snd_soc_dai *);
350 /*
351 * For hardware based FIFO caused delay reporting.
352 * Optional.
353 */
354 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
355 struct snd_soc_dai *);
356
357 /*
358 * Format list for auto selection.
359 * Format will be increased if priority format was
360 * not selected.
361 * see
362 * snd_soc_dai_get_fmt()
363 */
364 u64 *auto_selectable_formats;
365 int num_auto_selectable_formats;
366
367 /* probe ordering - for components with runtime dependencies */
368 int probe_order;
369 int remove_order;
370
371 /* bit field */
372 unsigned int no_capture_mute:1;
373 unsigned int mute_unmute_on_trigger:1;
374};
375
376struct snd_soc_cdai_ops {
377 /*
378 * for compress ops
379 */
380 int (*startup)(struct snd_compr_stream *,
381 struct snd_soc_dai *);
382 int (*shutdown)(struct snd_compr_stream *,
383 struct snd_soc_dai *);
384 int (*set_params)(struct snd_compr_stream *,
385 struct snd_compr_params *, struct snd_soc_dai *);
386 int (*get_params)(struct snd_compr_stream *,
387 struct snd_codec *, struct snd_soc_dai *);
388 int (*set_metadata)(struct snd_compr_stream *,
389 struct snd_compr_metadata *, struct snd_soc_dai *);
390 int (*get_metadata)(struct snd_compr_stream *,
391 struct snd_compr_metadata *, struct snd_soc_dai *);
392 int (*trigger)(struct snd_compr_stream *, int,
393 struct snd_soc_dai *);
394 int (*pointer)(struct snd_compr_stream *,
395 struct snd_compr_tstamp *, struct snd_soc_dai *);
396 int (*ack)(struct snd_compr_stream *, size_t,
397 struct snd_soc_dai *);
398};
399
400/*
401 * Digital Audio Interface Driver.
402 *
403 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
404 * operations and capabilities. Codec and platform drivers will register this
405 * structure for every DAI they have.
406 *
407 * This structure covers the clocking, formating and ALSA operations for each
408 * interface.
409 */
410struct snd_soc_dai_driver {
411 /* DAI description */
412 const char *name;
413 unsigned int id;
414 unsigned int base;
415 struct snd_soc_dobj dobj;
416 struct of_phandle_args *dai_args;
417
418 /* ops */
419 const struct snd_soc_dai_ops *ops;
420 const struct snd_soc_cdai_ops *cops;
421
422 /* DAI capabilities */
423 struct snd_soc_pcm_stream capture;
424 struct snd_soc_pcm_stream playback;
425 unsigned int symmetric_rate:1;
426 unsigned int symmetric_channels:1;
427 unsigned int symmetric_sample_bits:1;
428};
429
430/* for Playback/Capture */
431struct snd_soc_dai_stream {
432 struct snd_soc_dapm_widget *widget;
433
434 unsigned int active; /* usage count */
435 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */
436
437 void *dma_data; /* DAI DMA data */
438};
439
440/*
441 * Digital Audio Interface runtime data.
442 *
443 * Holds runtime data for a DAI.
444 */
445struct snd_soc_dai {
446 const char *name;
447 int id;
448 struct device *dev;
449
450 /* driver ops */
451 struct snd_soc_dai_driver *driver;
452
453 /* DAI runtime info */
454 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1];
455
456 /* Symmetry data - only valid if symmetry is being enforced */
457 unsigned int rate;
458 unsigned int channels;
459 unsigned int sample_bits;
460
461 /* parent platform/codec */
462 struct snd_soc_component *component;
463
464 struct list_head list;
465
466 /* function mark */
467 struct snd_pcm_substream *mark_startup;
468 struct snd_pcm_substream *mark_hw_params;
469 struct snd_pcm_substream *mark_trigger;
470 struct snd_compr_stream *mark_compr_startup;
471
472 /* bit field */
473 unsigned int probed:1;
474};
475
476static inline struct snd_soc_pcm_stream *
477snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
478{
479 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
480 &dai->driver->playback : &dai->driver->capture;
481}
482
483#define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK)
484#define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE)
485static inline
486struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream)
487{
488 return dai->stream[stream].widget;
489}
490
491#define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget)
492#define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget)
493static inline
494void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget)
495{
496 dai->stream[stream].widget = widget;
497}
498
499#define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK)
500#define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE)
501#define snd_soc_dai_get_dma_data(dai, ss) snd_soc_dai_dma_data_get(dai, ss->stream)
502static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream)
503{
504 return dai->stream[stream].dma_data;
505}
506
507#define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data)
508#define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data)
509#define snd_soc_dai_set_dma_data(dai, ss, data) snd_soc_dai_dma_data_set(dai, ss->stream, data)
510static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data)
511{
512 dai->stream[stream].dma_data = data;
513}
514
515static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture)
516{
517 snd_soc_dai_dma_data_set_playback(dai, playback);
518 snd_soc_dai_dma_data_set_capture(dai, capture);
519}
520
521static inline unsigned int snd_soc_dai_tdm_mask_get(struct snd_soc_dai *dai, int stream)
522{
523 return dai->stream[stream].tdm_mask;
524}
525
526static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream,
527 unsigned int tdm_mask)
528{
529 dai->stream[stream].tdm_mask = tdm_mask;
530}
531
532static inline unsigned int snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream)
533{
534 /* see snd_soc_dai_action() for setup */
535 return dai->stream[stream].active;
536}
537
538static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
539 void *data)
540{
541 dev_set_drvdata(dai->dev, data);
542}
543
544static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
545{
546 return dev_get_drvdata(dai->dev);
547}
548
549/**
550 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
551 * @dai: DAI
552 * @stream: STREAM (opaque structure depending on DAI type)
553 * @direction: Stream direction(Playback/Capture)
554 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
555 * the ASoC stream direction to configure sink/source ports.
556 * Playback maps to source ports and Capture for sink ports.
557 *
558 * This should be invoked with NULL to clear the stream set previously.
559 * Returns 0 on success, a negative error code otherwise.
560 */
561static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
562 void *stream, int direction)
563{
564 if (dai->driver->ops->set_stream)
565 return dai->driver->ops->set_stream(dai, stream, direction);
566 else
567 return -ENOTSUPP;
568}
569
570/**
571 * snd_soc_dai_get_stream() - Retrieves stream from DAI
572 * @dai: DAI
573 * @direction: Stream direction(Playback/Capture)
574 *
575 * This routine only retrieves that was previously configured
576 * with snd_soc_dai_get_stream()
577 *
578 * Returns pointer to stream or an ERR_PTR value, e.g.
579 * ERR_PTR(-ENOTSUPP) if callback is not supported;
580 */
581static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
582 int direction)
583{
584 if (dai->driver->ops->get_stream)
585 return dai->driver->ops->get_stream(dai, direction);
586 else
587 return ERR_PTR(-ENOTSUPP);
588}
589
590#endif
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
17struct snd_pcm_substream;
18struct snd_soc_dapm_widget;
19struct 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
166struct snd_soc_dai_driver;
167struct snd_soc_dai;
168struct snd_ac97_bus_ops;
169
170/* Digital Audio Interface clocking API.*/
171int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
172 unsigned int freq, int dir);
173
174int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
175 int div_id, int div);
176
177int 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
180int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
181
182/* Digital Audio interface formatting */
183int snd_soc_dai_get_fmt_max_priority(const struct snd_soc_pcm_runtime *rtd);
184u64 snd_soc_dai_get_fmt(const struct snd_soc_dai *dai, int priority);
185int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
186
187int 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
190int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
191 unsigned int tx_num, const unsigned int *tx_slot,
192 unsigned int rx_num, const unsigned int *rx_slot);
193
194int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
195
196/* Digital Audio Interface mute */
197int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
198 int direction);
199
200
201int snd_soc_dai_get_channel_map(const struct snd_soc_dai *dai,
202 unsigned int *tx_num, unsigned int *tx_slot,
203 unsigned int *rx_num, unsigned int *rx_slot);
204
205int snd_soc_dai_is_dummy(const struct snd_soc_dai *dai);
206
207int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
208 struct snd_pcm_substream *substream,
209 struct snd_pcm_hw_params *params);
210void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
211 struct snd_pcm_substream *substream,
212 int rollback);
213int snd_soc_dai_startup(struct snd_soc_dai *dai,
214 struct snd_pcm_substream *substream);
215void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
216 struct snd_pcm_substream *substream, int rollback);
217void snd_soc_dai_suspend(struct snd_soc_dai *dai);
218void snd_soc_dai_resume(struct snd_soc_dai *dai);
219int snd_soc_dai_compress_new(struct snd_soc_dai *dai, struct snd_soc_pcm_runtime *rtd);
220bool snd_soc_dai_stream_valid(const struct snd_soc_dai *dai, int stream);
221void snd_soc_dai_action(struct snd_soc_dai *dai,
222 int stream, int action);
223static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
224 int stream)
225{
226 snd_soc_dai_action(dai, stream, 1);
227}
228static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
229 int stream)
230{
231 snd_soc_dai_action(dai, stream, -1);
232}
233int snd_soc_dai_active(const struct snd_soc_dai *dai);
234
235int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
236int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
237int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
238int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
239int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
240 int rollback);
241void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
242 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
243
244int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
245 struct snd_compr_stream *cstream);
246void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
247 struct snd_compr_stream *cstream,
248 int rollback);
249int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
250 struct snd_compr_stream *cstream, int cmd);
251int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
252 struct snd_compr_stream *cstream,
253 struct snd_compr_params *params);
254int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
255 struct snd_compr_stream *cstream,
256 struct snd_codec *params);
257int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
258 struct snd_compr_stream *cstream,
259 size_t bytes);
260int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
261 struct snd_compr_stream *cstream,
262 struct snd_compr_tstamp *tstamp);
263int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
264 struct snd_compr_stream *cstream,
265 struct snd_compr_metadata *metadata);
266int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
267 struct snd_compr_stream *cstream,
268 struct snd_compr_metadata *metadata);
269
270const char *snd_soc_dai_name_get(const struct snd_soc_dai *dai);
271
272struct snd_soc_dai_ops {
273 /* DAI driver callbacks */
274 int (*probe)(struct snd_soc_dai *dai);
275 int (*remove)(struct snd_soc_dai *dai);
276 /* compress dai */
277 int (*compress_new)(struct snd_soc_pcm_runtime *rtd);
278 /* Optional Callback used at pcm creation*/
279 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
280 struct snd_soc_dai *dai);
281
282 /*
283 * DAI clocking configuration, all optional.
284 * Called by soc_card drivers, normally in their hw_params.
285 */
286 int (*set_sysclk)(struct snd_soc_dai *dai,
287 int clk_id, unsigned int freq, int dir);
288 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
289 unsigned int freq_in, unsigned int freq_out);
290 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
291 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
292
293 /*
294 * DAI format configuration
295 * Called by soc_card drivers, normally in their hw_params.
296 */
297 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
298 int (*xlate_tdm_slot_mask)(unsigned int slots,
299 unsigned int *tx_mask, unsigned int *rx_mask);
300 int (*set_tdm_slot)(struct snd_soc_dai *dai,
301 unsigned int tx_mask, unsigned int rx_mask,
302 int slots, int slot_width);
303 int (*set_channel_map)(struct snd_soc_dai *dai,
304 unsigned int tx_num, const unsigned int *tx_slot,
305 unsigned int rx_num, const unsigned int *rx_slot);
306 int (*get_channel_map)(const struct snd_soc_dai *dai,
307 unsigned int *tx_num, unsigned int *tx_slot,
308 unsigned int *rx_num, unsigned int *rx_slot);
309 int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
310
311 int (*set_stream)(struct snd_soc_dai *dai,
312 void *stream, int direction);
313 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
314
315 /*
316 * DAI digital mute - optional.
317 * Called by soc-core to minimise any pops.
318 */
319 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
320
321 /*
322 * ALSA PCM audio operations - all optional.
323 * Called by soc-core during audio PCM operations.
324 */
325 int (*startup)(struct snd_pcm_substream *,
326 struct snd_soc_dai *);
327 void (*shutdown)(struct snd_pcm_substream *,
328 struct snd_soc_dai *);
329 int (*hw_params)(struct snd_pcm_substream *,
330 struct snd_pcm_hw_params *, struct snd_soc_dai *);
331 int (*hw_free)(struct snd_pcm_substream *,
332 struct snd_soc_dai *);
333 int (*prepare)(struct snd_pcm_substream *,
334 struct snd_soc_dai *);
335 /*
336 * NOTE: Commands passed to the trigger function are not necessarily
337 * compatible with the current state of the dai. For example this
338 * sequence of commands is possible: START STOP STOP.
339 * So do not unconditionally use refcounting functions in the trigger
340 * function, e.g. clk_enable/disable.
341 */
342 int (*trigger)(struct snd_pcm_substream *, int,
343 struct snd_soc_dai *);
344
345 /*
346 * For hardware based FIFO caused delay reporting.
347 * Optional.
348 */
349 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
350 struct snd_soc_dai *);
351
352 /*
353 * Format list for auto selection.
354 * Format will be increased if priority format was
355 * not selected.
356 * see
357 * snd_soc_dai_get_fmt()
358 */
359 const u64 *auto_selectable_formats;
360 int num_auto_selectable_formats;
361
362 /* probe ordering - for components with runtime dependencies */
363 int probe_order;
364 int remove_order;
365
366 /* bit field */
367 unsigned int no_capture_mute:1;
368 unsigned int mute_unmute_on_trigger:1;
369};
370
371struct snd_soc_cdai_ops {
372 /*
373 * for compress ops
374 */
375 int (*startup)(struct snd_compr_stream *,
376 struct snd_soc_dai *);
377 int (*shutdown)(struct snd_compr_stream *,
378 struct snd_soc_dai *);
379 int (*set_params)(struct snd_compr_stream *,
380 struct snd_compr_params *, struct snd_soc_dai *);
381 int (*get_params)(struct snd_compr_stream *,
382 struct snd_codec *, struct snd_soc_dai *);
383 int (*set_metadata)(struct snd_compr_stream *,
384 struct snd_compr_metadata *, struct snd_soc_dai *);
385 int (*get_metadata)(struct snd_compr_stream *,
386 struct snd_compr_metadata *, struct snd_soc_dai *);
387 int (*trigger)(struct snd_compr_stream *, int,
388 struct snd_soc_dai *);
389 int (*pointer)(struct snd_compr_stream *,
390 struct snd_compr_tstamp *, struct snd_soc_dai *);
391 int (*ack)(struct snd_compr_stream *, size_t,
392 struct snd_soc_dai *);
393};
394
395/*
396 * Digital Audio Interface Driver.
397 *
398 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
399 * operations and capabilities. Codec and platform drivers will register this
400 * structure for every DAI they have.
401 *
402 * This structure covers the clocking, formating and ALSA operations for each
403 * interface.
404 */
405struct snd_soc_dai_driver {
406 /* DAI description */
407 const char *name;
408 unsigned int id;
409 unsigned int base;
410 struct snd_soc_dobj dobj;
411 const struct of_phandle_args *dai_args;
412
413 /* ops */
414 const struct snd_soc_dai_ops *ops;
415 const struct snd_soc_cdai_ops *cops;
416
417 /* DAI capabilities */
418 struct snd_soc_pcm_stream capture;
419 struct snd_soc_pcm_stream playback;
420 unsigned int symmetric_rate:1;
421 unsigned int symmetric_channels:1;
422 unsigned int symmetric_sample_bits:1;
423};
424
425/* for Playback/Capture */
426struct snd_soc_dai_stream {
427 struct snd_soc_dapm_widget *widget;
428
429 unsigned int active; /* usage count */
430 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */
431
432 void *dma_data; /* DAI DMA data */
433};
434
435/*
436 * Digital Audio Interface runtime data.
437 *
438 * Holds runtime data for a DAI.
439 */
440struct snd_soc_dai {
441 const char *name;
442 int id;
443 struct device *dev;
444
445 /* driver ops */
446 struct snd_soc_dai_driver *driver;
447
448 /* DAI runtime info */
449 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1];
450
451 /* Symmetry data - only valid if symmetry is being enforced */
452 unsigned int symmetric_rate;
453 unsigned int symmetric_channels;
454 unsigned int symmetric_sample_bits;
455
456 /* parent platform/codec */
457 struct snd_soc_component *component;
458
459 struct list_head list;
460
461 /* function mark */
462 struct snd_pcm_substream *mark_startup;
463 struct snd_pcm_substream *mark_hw_params;
464 struct snd_pcm_substream *mark_trigger;
465 struct snd_compr_stream *mark_compr_startup;
466
467 /* bit field */
468 unsigned int probed:1;
469};
470
471static inline const struct snd_soc_pcm_stream *
472snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
473{
474 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
475 &dai->driver->playback : &dai->driver->capture;
476}
477
478#define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK)
479#define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE)
480static inline
481struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream)
482{
483 return dai->stream[stream].widget;
484}
485
486#define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget)
487#define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget)
488static inline
489void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget)
490{
491 dai->stream[stream].widget = widget;
492}
493
494#define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK)
495#define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE)
496#define snd_soc_dai_get_dma_data(dai, ss) snd_soc_dai_dma_data_get(dai, ss->stream)
497static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream)
498{
499 return dai->stream[stream].dma_data;
500}
501
502#define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data)
503#define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data)
504#define snd_soc_dai_set_dma_data(dai, ss, data) snd_soc_dai_dma_data_set(dai, ss->stream, data)
505static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data)
506{
507 dai->stream[stream].dma_data = data;
508}
509
510static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture)
511{
512 snd_soc_dai_dma_data_set_playback(dai, playback);
513 snd_soc_dai_dma_data_set_capture(dai, capture);
514}
515
516static inline unsigned int snd_soc_dai_tdm_mask_get(const struct snd_soc_dai *dai,
517 int stream)
518{
519 return dai->stream[stream].tdm_mask;
520}
521
522static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream,
523 unsigned int tdm_mask)
524{
525 dai->stream[stream].tdm_mask = tdm_mask;
526}
527
528static inline unsigned int snd_soc_dai_stream_active(const struct snd_soc_dai *dai,
529 int stream)
530{
531 /* see snd_soc_dai_action() for setup */
532 return dai->stream[stream].active;
533}
534
535static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
536 void *data)
537{
538 dev_set_drvdata(dai->dev, data);
539}
540
541static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
542{
543 return dev_get_drvdata(dai->dev);
544}
545
546/**
547 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
548 * @dai: DAI
549 * @stream: STREAM (opaque structure depending on DAI type)
550 * @direction: Stream direction(Playback/Capture)
551 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
552 * the ASoC stream direction to configure sink/source ports.
553 * Playback maps to source ports and Capture for sink ports.
554 *
555 * This should be invoked with NULL to clear the stream set previously.
556 * Returns 0 on success, a negative error code otherwise.
557 */
558static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
559 void *stream, int direction)
560{
561 if (dai->driver->ops->set_stream)
562 return dai->driver->ops->set_stream(dai, stream, direction);
563 else
564 return -ENOTSUPP;
565}
566
567/**
568 * snd_soc_dai_get_stream() - Retrieves stream from DAI
569 * @dai: DAI
570 * @direction: Stream direction(Playback/Capture)
571 *
572 * This routine only retrieves that was previously configured
573 * with snd_soc_dai_get_stream()
574 *
575 * Returns pointer to stream or an ERR_PTR value, e.g.
576 * ERR_PTR(-ENOTSUPP) if callback is not supported;
577 */
578static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
579 int direction)
580{
581 if (dai->driver->ops->get_stream)
582 return dai->driver->ops->get_stream(dai, direction);
583 else
584 return ERR_PTR(-ENOTSUPP);
585}
586
587#endif