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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 TDM slot idle modes
57 *
58 * Describes a CODEC/CPU's behaviour when not actively receiving or
59 * transmitting on a given TDM slot. NONE is undefined behaviour.
60 * Add new modes to the end.
61 */
62#define SND_SOC_DAI_TDM_IDLE_NONE 0
63#define SND_SOC_DAI_TDM_IDLE_OFF 1
64#define SND_SOC_DAI_TDM_IDLE_ZERO 2
65#define SND_SOC_DAI_TDM_IDLE_PULLDOWN 3
66#define SND_SOC_DAI_TDM_IDLE_HIZ 4
67#define SND_SOC_DAI_TDM_IDLE_PULLUP 5
68#define SND_SOC_DAI_TDM_IDLE_DRIVE_HIGH 6
69
70/*
71 * DAI Clock gating.
72 *
73 * DAI bit clocks can be gated (disabled) when the DAI is not
74 * sending or receiving PCM data in a frame. This can be used to save power.
75 */
76#define SND_SOC_DAIFMT_CONT (1 << 4) /* continuous clock */
77#define SND_SOC_DAIFMT_GATED (0 << 4) /* clock is gated */
78
79/* Describes the possible PCM format */
80/*
81 * define GATED -> CONT. GATED will be selected if both are selected.
82 * see
83 * snd_soc_runtime_get_dai_fmt()
84 */
85#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT 16
86#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
87#define SND_SOC_POSSIBLE_DAIFMT_GATED (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
88#define SND_SOC_POSSIBLE_DAIFMT_CONT (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
89
90/*
91 * DAI hardware signal polarity.
92 *
93 * Specifies whether the DAI can also support inverted clocks for the specified
94 * format.
95 *
96 * BCLK:
97 * - "normal" polarity means signal is available at rising edge of BCLK
98 * - "inverted" polarity means signal is available at falling edge of BCLK
99 *
100 * FSYNC "normal" polarity depends on the frame format:
101 * - I2S: frame consists of left then right channel data. Left channel starts
102 * with falling FSYNC edge, right channel starts with rising FSYNC edge.
103 * - Left/Right Justified: frame consists of left then right channel data.
104 * Left channel starts with rising FSYNC edge, right channel starts with
105 * falling FSYNC edge.
106 * - DSP A/B: Frame starts with rising FSYNC edge.
107 * - AC97: Frame starts with rising FSYNC edge.
108 *
109 * "Negative" FSYNC polarity is the one opposite of "normal" polarity.
110 */
111#define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */
112#define SND_SOC_DAIFMT_NB_IF (2 << 8) /* normal BCLK + inv FRM */
113#define SND_SOC_DAIFMT_IB_NF (3 << 8) /* invert BCLK + nor FRM */
114#define SND_SOC_DAIFMT_IB_IF (4 << 8) /* invert BCLK + FRM */
115
116/* Describes the possible PCM format */
117#define SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT 32
118#define SND_SOC_POSSIBLE_DAIFMT_INV_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
119#define SND_SOC_POSSIBLE_DAIFMT_NB_NF (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
120#define SND_SOC_POSSIBLE_DAIFMT_NB_IF (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
121#define SND_SOC_POSSIBLE_DAIFMT_IB_NF (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
122#define SND_SOC_POSSIBLE_DAIFMT_IB_IF (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
123
124/*
125 * DAI hardware clock providers/consumers
126 *
127 * This is wrt the codec, the inverse is true for the interface
128 * i.e. if the codec is clk and FRM provider then the interface is
129 * clk and frame consumer.
130 */
131#define SND_SOC_DAIFMT_CBP_CFP (1 << 12) /* codec clk provider & frame provider */
132#define SND_SOC_DAIFMT_CBC_CFP (2 << 12) /* codec clk consumer & frame provider */
133#define SND_SOC_DAIFMT_CBP_CFC (3 << 12) /* codec clk provider & frame consumer */
134#define SND_SOC_DAIFMT_CBC_CFC (4 << 12) /* codec clk consumer & frame consumer */
135
136/* when passed to set_fmt directly indicate if the device is provider or consumer */
137#define SND_SOC_DAIFMT_BP_FP SND_SOC_DAIFMT_CBP_CFP
138#define SND_SOC_DAIFMT_BC_FP SND_SOC_DAIFMT_CBC_CFP
139#define SND_SOC_DAIFMT_BP_FC SND_SOC_DAIFMT_CBP_CFC
140#define SND_SOC_DAIFMT_BC_FC SND_SOC_DAIFMT_CBC_CFC
141
142/* Describes the possible PCM format */
143#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT 48
144#define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
145#define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
146#define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
147#define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
148#define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
149
150#define SND_SOC_DAIFMT_FORMAT_MASK 0x000f
151#define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0
152#define SND_SOC_DAIFMT_INV_MASK 0x0f00
153#define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 0xf000
154
155#define SND_SOC_DAIFMT_MASTER_MASK SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK
156
157/*
158 * Master Clock Directions
159 */
160#define SND_SOC_CLOCK_IN 0
161#define SND_SOC_CLOCK_OUT 1
162
163#define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\
164 SNDRV_PCM_FMTBIT_S16_LE |\
165 SNDRV_PCM_FMTBIT_S16_BE |\
166 SNDRV_PCM_FMTBIT_S20_3LE |\
167 SNDRV_PCM_FMTBIT_S20_3BE |\
168 SNDRV_PCM_FMTBIT_S20_LE |\
169 SNDRV_PCM_FMTBIT_S20_BE |\
170 SNDRV_PCM_FMTBIT_S24_3LE |\
171 SNDRV_PCM_FMTBIT_S24_3BE |\
172 SNDRV_PCM_FMTBIT_S32_LE |\
173 SNDRV_PCM_FMTBIT_S32_BE)
174
175struct snd_soc_dai_driver;
176struct snd_soc_dai;
177struct snd_ac97_bus_ops;
178
179/* Digital Audio Interface clocking API.*/
180int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
181 unsigned int freq, int dir);
182
183int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
184 int div_id, int div);
185
186int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
187 int pll_id, int source, unsigned int freq_in, unsigned int freq_out);
188
189int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
190
191/* Digital Audio interface formatting */
192int snd_soc_dai_get_fmt_max_priority(const struct snd_soc_pcm_runtime *rtd);
193u64 snd_soc_dai_get_fmt(const struct snd_soc_dai *dai, int priority);
194int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
195
196int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
197 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);
198
199int snd_soc_dai_set_tdm_idle(struct snd_soc_dai *dai,
200 unsigned int tx_mask, unsigned int rx_mask,
201 int tx_mode, int rx_mode);
202
203int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
204 unsigned int tx_num, const unsigned int *tx_slot,
205 unsigned int rx_num, const unsigned int *rx_slot);
206
207int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
208
209int snd_soc_dai_prepare(struct snd_soc_dai *dai,
210 struct snd_pcm_substream *substream);
211
212/* Digital Audio Interface mute */
213int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
214 int direction);
215int snd_soc_dai_mute_is_ctrled_at_trigger(struct snd_soc_dai *dai);
216
217int snd_soc_dai_get_channel_map(const struct snd_soc_dai *dai,
218 unsigned int *tx_num, unsigned int *tx_slot,
219 unsigned int *rx_num, unsigned int *rx_slot);
220
221int snd_soc_dai_is_dummy(const struct snd_soc_dai *dai);
222
223int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
224 struct snd_pcm_substream *substream,
225 struct snd_pcm_hw_params *params);
226void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
227 struct snd_pcm_substream *substream,
228 int rollback);
229int snd_soc_dai_startup(struct snd_soc_dai *dai,
230 struct snd_pcm_substream *substream);
231void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
232 struct snd_pcm_substream *substream, int rollback);
233void snd_soc_dai_suspend(struct snd_soc_dai *dai);
234void snd_soc_dai_resume(struct snd_soc_dai *dai);
235int snd_soc_dai_compress_new(struct snd_soc_dai *dai, struct snd_soc_pcm_runtime *rtd);
236bool snd_soc_dai_stream_valid(const struct snd_soc_dai *dai, int stream);
237void snd_soc_dai_action(struct snd_soc_dai *dai,
238 int stream, int action);
239static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
240 int stream)
241{
242 snd_soc_dai_action(dai, stream, 1);
243}
244static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
245 int stream)
246{
247 snd_soc_dai_action(dai, stream, -1);
248}
249int snd_soc_dai_active(const struct snd_soc_dai *dai);
250
251int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
252int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
253int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
254int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
255int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
256 int rollback);
257void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
258 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
259
260int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
261 struct snd_compr_stream *cstream);
262void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
263 struct snd_compr_stream *cstream,
264 int rollback);
265int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
266 struct snd_compr_stream *cstream, int cmd);
267int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
268 struct snd_compr_stream *cstream,
269 struct snd_compr_params *params);
270int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
271 struct snd_compr_stream *cstream,
272 struct snd_codec *params);
273int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
274 struct snd_compr_stream *cstream,
275 size_t bytes);
276int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
277 struct snd_compr_stream *cstream,
278 struct snd_compr_tstamp64 *tstamp);
279int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
280 struct snd_compr_stream *cstream,
281 struct snd_compr_metadata *metadata);
282int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
283 struct snd_compr_stream *cstream,
284 struct snd_compr_metadata *metadata);
285
286const char *snd_soc_dai_name_get(const struct snd_soc_dai *dai);
287
288struct snd_soc_dai_ops {
289 /* DAI driver callbacks */
290 int (*probe)(struct snd_soc_dai *dai);
291 int (*remove)(struct snd_soc_dai *dai);
292 /* compress dai */
293 int (*compress_new)(struct snd_soc_pcm_runtime *rtd);
294 /* Optional Callback used at pcm creation*/
295 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
296 struct snd_soc_dai *dai);
297
298 /*
299 * DAI clocking configuration, all optional.
300 * Called by soc_card drivers, normally in their hw_params.
301 */
302 int (*set_sysclk)(struct snd_soc_dai *dai,
303 int clk_id, unsigned int freq, int dir);
304 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
305 unsigned int freq_in, unsigned int freq_out);
306 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
307 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
308
309 /*
310 * DAI format configuration
311 * Called by soc_card drivers, normally in their hw_params.
312 */
313 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
314 int (*xlate_tdm_slot_mask)(unsigned int slots,
315 unsigned int *tx_mask, unsigned int *rx_mask);
316 int (*set_tdm_slot)(struct snd_soc_dai *dai,
317 unsigned int tx_mask, unsigned int rx_mask,
318 int slots, int slot_width);
319 int (*set_tdm_idle)(struct snd_soc_dai *dai,
320 unsigned int tx_mask, unsigned int rx_mask,
321 int tx_mode, int rx_mode);
322 int (*set_channel_map)(struct snd_soc_dai *dai,
323 unsigned int tx_num, const unsigned int *tx_slot,
324 unsigned int rx_num, const unsigned int *rx_slot);
325 int (*get_channel_map)(const struct snd_soc_dai *dai,
326 unsigned int *tx_num, unsigned int *tx_slot,
327 unsigned int *rx_num, unsigned int *rx_slot);
328 int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
329
330 int (*set_stream)(struct snd_soc_dai *dai,
331 void *stream, int direction);
332 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
333
334 /*
335 * DAI digital mute - optional.
336 * Called by soc-core to minimise any pops.
337 */
338 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
339
340 /*
341 * ALSA PCM audio operations - all optional.
342 * Called by soc-core during audio PCM operations.
343 */
344 int (*startup)(struct snd_pcm_substream *,
345 struct snd_soc_dai *);
346 void (*shutdown)(struct snd_pcm_substream *,
347 struct snd_soc_dai *);
348 int (*hw_params)(struct snd_pcm_substream *,
349 struct snd_pcm_hw_params *, struct snd_soc_dai *);
350 int (*hw_free)(struct snd_pcm_substream *,
351 struct snd_soc_dai *);
352 int (*prepare)(struct snd_pcm_substream *,
353 struct snd_soc_dai *);
354 /*
355 * NOTE: Commands passed to the trigger function are not necessarily
356 * compatible with the current state of the dai. For example this
357 * sequence of commands is possible: START STOP STOP.
358 * So do not unconditionally use refcounting functions in the trigger
359 * function, e.g. clk_enable/disable.
360 */
361 int (*trigger)(struct snd_pcm_substream *, int,
362 struct snd_soc_dai *);
363
364 /*
365 * For hardware based FIFO caused delay reporting.
366 * Optional.
367 */
368 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
369 struct snd_soc_dai *);
370
371 /*
372 * Format list for auto selection.
373 * Format will be increased if priority format was
374 * not selected.
375 * see
376 * snd_soc_dai_get_fmt()
377 */
378 const u64 *auto_selectable_formats;
379 int num_auto_selectable_formats;
380
381 /* probe ordering - for components with runtime dependencies */
382 int probe_order;
383 int remove_order;
384
385 /* bit field */
386 unsigned int no_capture_mute:1;
387 unsigned int mute_unmute_on_trigger:1;
388};
389
390struct snd_soc_cdai_ops {
391 /*
392 * for compress ops
393 */
394 int (*startup)(struct snd_compr_stream *,
395 struct snd_soc_dai *);
396 int (*shutdown)(struct snd_compr_stream *,
397 struct snd_soc_dai *);
398 int (*set_params)(struct snd_compr_stream *,
399 struct snd_compr_params *, struct snd_soc_dai *);
400 int (*get_params)(struct snd_compr_stream *,
401 struct snd_codec *, struct snd_soc_dai *);
402 int (*set_metadata)(struct snd_compr_stream *,
403 struct snd_compr_metadata *, struct snd_soc_dai *);
404 int (*get_metadata)(struct snd_compr_stream *,
405 struct snd_compr_metadata *, struct snd_soc_dai *);
406 int (*trigger)(struct snd_compr_stream *, int,
407 struct snd_soc_dai *);
408 int (*pointer)(struct snd_compr_stream *stream,
409 struct snd_compr_tstamp64 *tstamp,
410 struct snd_soc_dai *dai);
411 int (*ack)(struct snd_compr_stream *, size_t,
412 struct snd_soc_dai *);
413};
414
415/*
416 * Digital Audio Interface Driver.
417 *
418 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
419 * operations and capabilities. Codec and platform drivers will register this
420 * structure for every DAI they have.
421 *
422 * This structure covers the clocking, formating and ALSA operations for each
423 * interface.
424 */
425struct snd_soc_dai_driver {
426 /* DAI description */
427 const char *name;
428 unsigned int id;
429 unsigned int base;
430 struct snd_soc_dobj dobj;
431 const struct of_phandle_args *dai_args;
432
433 /* ops */
434 const struct snd_soc_dai_ops *ops;
435 const struct snd_soc_cdai_ops *cops;
436
437 /* DAI capabilities */
438 struct snd_soc_pcm_stream capture;
439 struct snd_soc_pcm_stream playback;
440 unsigned int symmetric_rate:1;
441 unsigned int symmetric_channels:1;
442 unsigned int symmetric_sample_bits:1;
443};
444
445/* for Playback/Capture */
446struct snd_soc_dai_stream {
447 struct snd_soc_dapm_widget *widget;
448
449 unsigned int active; /* usage count */
450 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */
451
452 void *dma_data; /* DAI DMA data */
453};
454
455/*
456 * Digital Audio Interface runtime data.
457 *
458 * Holds runtime data for a DAI.
459 */
460struct snd_soc_dai {
461 const char *name;
462 int id;
463 struct device *dev;
464
465 /* driver ops */
466 struct snd_soc_dai_driver *driver;
467
468 /* DAI runtime info */
469 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1];
470
471 /* Symmetry data - only valid if symmetry is being enforced */
472 unsigned int symmetric_rate;
473 unsigned int symmetric_channels;
474 unsigned int symmetric_sample_bits;
475
476 /* parent platform/codec */
477 struct snd_soc_component *component;
478
479 struct list_head list;
480
481 /* function mark */
482 struct snd_pcm_substream *mark_startup;
483 struct snd_pcm_substream *mark_hw_params;
484 struct snd_pcm_substream *mark_trigger;
485 struct snd_compr_stream *mark_compr_startup;
486
487 /* bit field */
488 unsigned int probed:1;
489
490 /* DAI private data */
491 void *priv;
492};
493
494static inline const struct snd_soc_pcm_stream *
495snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
496{
497 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
498 &dai->driver->playback : &dai->driver->capture;
499}
500
501#define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK)
502#define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE)
503static inline
504struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream)
505{
506 return dai->stream[stream].widget;
507}
508
509#define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget)
510#define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget)
511static inline
512void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget)
513{
514 dai->stream[stream].widget = widget;
515}
516
517#define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK)
518#define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE)
519#define snd_soc_dai_get_dma_data(dai, ss) snd_soc_dai_dma_data_get(dai, ss->stream)
520static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream)
521{
522 return dai->stream[stream].dma_data;
523}
524
525#define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data)
526#define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data)
527#define snd_soc_dai_set_dma_data(dai, ss, data) snd_soc_dai_dma_data_set(dai, ss->stream, data)
528static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data)
529{
530 dai->stream[stream].dma_data = data;
531}
532
533static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture)
534{
535 snd_soc_dai_dma_data_set_playback(dai, playback);
536 snd_soc_dai_dma_data_set_capture(dai, capture);
537}
538
539static inline unsigned int snd_soc_dai_tdm_mask_get(const struct snd_soc_dai *dai,
540 int stream)
541{
542 return dai->stream[stream].tdm_mask;
543}
544
545static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream,
546 unsigned int tdm_mask)
547{
548 dai->stream[stream].tdm_mask = tdm_mask;
549}
550
551static inline unsigned int snd_soc_dai_stream_active(const struct snd_soc_dai *dai,
552 int stream)
553{
554 /* see snd_soc_dai_action() for setup */
555 return dai->stream[stream].active;
556}
557
558static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
559 void *data)
560{
561 dev_set_drvdata(dai->dev, data);
562}
563
564static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
565{
566 return dev_get_drvdata(dai->dev);
567}
568
569/**
570 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
571 * @dai: DAI
572 * @stream: STREAM (opaque structure depending on DAI type)
573 * @direction: Stream direction(Playback/Capture)
574 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
575 * the ASoC stream direction to configure sink/source ports.
576 * Playback maps to source ports and Capture for sink ports.
577 *
578 * This should be invoked with NULL to clear the stream set previously.
579 * Returns 0 on success, a negative error code otherwise.
580 */
581static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
582 void *stream, int direction)
583{
584 if (dai->driver->ops->set_stream)
585 return dai->driver->ops->set_stream(dai, stream, direction);
586 else
587 return -ENOTSUPP;
588}
589
590/**
591 * snd_soc_dai_get_stream() - Retrieves stream from DAI
592 * @dai: DAI
593 * @direction: Stream direction(Playback/Capture)
594 *
595 * This routine only retrieves that was previously configured
596 * with snd_soc_dai_get_stream()
597 *
598 * Returns pointer to stream or an ERR_PTR value, e.g.
599 * ERR_PTR(-ENOTSUPP) if callback is not supported;
600 */
601static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
602 int direction)
603{
604 if (dai->driver->ops->get_stream)
605 return dai->driver->ops->get_stream(dai, direction);
606 else
607 return ERR_PTR(-ENOTSUPP);
608}
609
610#endif