source: GPL/trunk/alsa-kernel/include/sound/soc-dai.h

Last change on this file was 777, checked in by David Azarewicz, 6 months ago

Merge from uniaud32-exp branch
File size: 21.2 KB
Line 
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,
220 struct snd_soc_pcm_runtime *rtd, int num);
221bool snd_soc_dai_stream_valid(const struct snd_soc_dai *dai, int stream);
222void snd_soc_dai_action(struct snd_soc_dai *dai,
223 int stream, int action);
224static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
225 int stream)
226{
227 snd_soc_dai_action(dai, stream, 1);
228}
229static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
230 int stream)
231{
232 snd_soc_dai_action(dai, stream, -1);
233}
234int snd_soc_dai_active(const struct snd_soc_dai *dai);
235
236int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
237int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
238int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
239int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
240int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
241 int rollback);
242void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
243 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
244
245int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
246 struct snd_compr_stream *cstream);
247void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
248 struct snd_compr_stream *cstream,
249 int rollback);
250int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
251 struct snd_compr_stream *cstream, int cmd);
252int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
253 struct snd_compr_stream *cstream,
254 struct snd_compr_params *params);
255int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
256 struct snd_compr_stream *cstream,
257 struct snd_codec *params);
258int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
259 struct snd_compr_stream *cstream,
260 size_t bytes);
261int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
262 struct snd_compr_stream *cstream,
263 struct snd_compr_tstamp *tstamp);
264int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
265 struct snd_compr_stream *cstream,
266 struct snd_compr_metadata *metadata);
267int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
268 struct snd_compr_stream *cstream,
269 struct snd_compr_metadata *metadata);
270
271const char *snd_soc_dai_name_get(const struct snd_soc_dai *dai);
272
273struct snd_soc_dai_ops {
274 /* DAI driver callbacks */
275 int (*probe)(struct snd_soc_dai *dai);
276 int (*remove)(struct snd_soc_dai *dai);
277 /* compress dai */
278 int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
279 /* Optional Callback used at pcm creation*/
280 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
281 struct snd_soc_dai *dai);
282
283 /*
284 * DAI clocking configuration, all optional.
285 * Called by soc_card drivers, normally in their hw_params.
286 */
287 int (*set_sysclk)(struct snd_soc_dai *dai,
288 int clk_id, unsigned int freq, int dir);
289 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
290 unsigned int freq_in, unsigned int freq_out);
291 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
292 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
293
294 /*
295 * DAI format configuration
296 * Called by soc_card drivers, normally in their hw_params.
297 */
298 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
299 int (*xlate_tdm_slot_mask)(unsigned int slots,
300 unsigned int *tx_mask, unsigned int *rx_mask);
301 int (*set_tdm_slot)(struct snd_soc_dai *dai,
302 unsigned int tx_mask, unsigned int rx_mask,
303 int slots, int slot_width);
304 int (*set_channel_map)(struct snd_soc_dai *dai,
305 unsigned int tx_num, const unsigned int *tx_slot,
306 unsigned int rx_num, const unsigned int *rx_slot);
307 int (*get_channel_map)(const 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 (*set_tristate)(struct snd_soc_dai *dai, int tristate);
311
312 int (*set_stream)(struct snd_soc_dai *dai,
313 void *stream, int direction);
314 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
315
316 /*
317 * DAI digital mute - optional.
318 * Called by soc-core to minimise any pops.
319 */
320 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
321
322 /*
323 * ALSA PCM audio operations - all optional.
324 * Called by soc-core during audio PCM operations.
325 */
326 int (*startup)(struct snd_pcm_substream *,
327 struct snd_soc_dai *);
328 void (*shutdown)(struct snd_pcm_substream *,
329 struct snd_soc_dai *);
330 int (*hw_params)(struct snd_pcm_substream *,
331 struct snd_pcm_hw_params *, struct snd_soc_dai *);
332 int (*hw_free)(struct snd_pcm_substream *,
333 struct snd_soc_dai *);
334 int (*prepare)(struct snd_pcm_substream *,
335 struct snd_soc_dai *);
336 /*
337 * NOTE: Commands passed to the trigger function are not necessarily
338 * compatible with the current state of the dai. For example this
339 * sequence of commands is possible: START STOP STOP.
340 * So do not unconditionally use refcounting functions in the trigger
341 * function, e.g. clk_enable/disable.
342 */
343 int (*trigger)(struct snd_pcm_substream *, int,
344 struct snd_soc_dai *);
345
346 /*
347 * For hardware based FIFO caused delay reporting.
348 * Optional.
349 */
350 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
351 struct snd_soc_dai *);
352
353 /*
354 * Format list for auto selection.
355 * Format will be increased if priority format was
356 * not selected.
357 * see
358 * snd_soc_dai_get_fmt()
359 */
360 const u64 *auto_selectable_formats;
361 int num_auto_selectable_formats;
362
363 /* probe ordering - for components with runtime dependencies */
364 int probe_order;
365 int remove_order;
366
367 /* bit field */
368 unsigned int no_capture_mute:1;
369 unsigned int mute_unmute_on_trigger:1;
370};
371
372struct snd_soc_cdai_ops {
373 /*
374 * for compress ops
375 */
376 int (*startup)(struct snd_compr_stream *,
377 struct snd_soc_dai *);
378 int (*shutdown)(struct snd_compr_stream *,
379 struct snd_soc_dai *);
380 int (*set_params)(struct snd_compr_stream *,
381 struct snd_compr_params *, struct snd_soc_dai *);
382 int (*get_params)(struct snd_compr_stream *,
383 struct snd_codec *, struct snd_soc_dai *);
384 int (*set_metadata)(struct snd_compr_stream *,
385 struct snd_compr_metadata *, struct snd_soc_dai *);
386 int (*get_metadata)(struct snd_compr_stream *,
387 struct snd_compr_metadata *, struct snd_soc_dai *);
388 int (*trigger)(struct snd_compr_stream *, int,
389 struct snd_soc_dai *);
390 int (*pointer)(struct snd_compr_stream *,
391 struct snd_compr_tstamp *, struct snd_soc_dai *);
392 int (*ack)(struct snd_compr_stream *, size_t,
393 struct snd_soc_dai *);
394};
395
396/*
397 * Digital Audio Interface Driver.
398 *
399 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
400 * operations and capabilities. Codec and platform drivers will register this
401 * structure for every DAI they have.
402 *
403 * This structure covers the clocking, formating and ALSA operations for each
404 * interface.
405 */
406struct snd_soc_dai_driver {
407 /* DAI description */
408 const char *name;
409 unsigned int id;
410 unsigned int base;
411 struct snd_soc_dobj dobj;
412 const struct of_phandle_args *dai_args;
413
414 /* ops */
415 const struct snd_soc_dai_ops *ops;
416 const struct snd_soc_cdai_ops *cops;
417
418 /* DAI capabilities */
419 struct snd_soc_pcm_stream capture;
420 struct snd_soc_pcm_stream playback;
421 unsigned int symmetric_rate:1;
422 unsigned int symmetric_channels:1;
423 unsigned int symmetric_sample_bits:1;
424};
425
426/* for Playback/Capture */
427struct snd_soc_dai_stream {
428 struct snd_soc_dapm_widget *widget;
429
430 unsigned int active; /* usage count */
431 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */
432
433 void *dma_data; /* DAI DMA data */
434};
435
436/*
437 * Digital Audio Interface runtime data.
438 *
439 * Holds runtime data for a DAI.
440 */
441struct snd_soc_dai {
442 const char *name;
443 int id;
444 struct device *dev;
445
446 /* driver ops */
447 struct snd_soc_dai_driver *driver;
448
449 /* DAI runtime info */
450 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1];
451
452 /* Symmetry data - only valid if symmetry is being enforced */
453 unsigned int rate;
454 unsigned int channels;
455 unsigned int sample_bits;
456
457 /* parent platform/codec */
458 struct snd_soc_component *component;
459
460 struct list_head list;
461
462 /* function mark */
463 struct snd_pcm_substream *mark_startup;
464 struct snd_pcm_substream *mark_hw_params;
465 struct snd_pcm_substream *mark_trigger;
466 struct snd_compr_stream *mark_compr_startup;
467
468 /* bit field */
469 unsigned int probed:1;
470};
471
472static inline const struct snd_soc_pcm_stream *
473snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
474{
475 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
476 &dai->driver->playback : &dai->driver->capture;
477}
478
479#define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK)
480#define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE)
481static inline
482struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream)
483{
484 return dai->stream[stream].widget;
485}
486
487#define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget)
488#define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget)
489static inline
490void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget)
491{
492 dai->stream[stream].widget = widget;
493}
494
495#define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK)
496#define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE)
497#define snd_soc_dai_get_dma_data(dai, ss) snd_soc_dai_dma_data_get(dai, ss->stream)
498static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream)
499{
500 return dai->stream[stream].dma_data;
501}
502
503#define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data)
504#define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data)
505#define snd_soc_dai_set_dma_data(dai, ss, data) snd_soc_dai_dma_data_set(dai, ss->stream, data)
506static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data)
507{
508 dai->stream[stream].dma_data = data;
509}
510
511static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture)
512{
513 snd_soc_dai_dma_data_set_playback(dai, playback);
514 snd_soc_dai_dma_data_set_capture(dai, capture);
515}
516
517static inline unsigned int snd_soc_dai_tdm_mask_get(const struct snd_soc_dai *dai,
518 int stream)
519{
520 return dai->stream[stream].tdm_mask;
521}
522
523static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream,
524 unsigned int tdm_mask)
525{
526 dai->stream[stream].tdm_mask = tdm_mask;
527}
528
529static inline unsigned int snd_soc_dai_stream_active(const struct snd_soc_dai *dai,
530 int stream)
531{
532 /* see snd_soc_dai_action() for setup */
533 return dai->stream[stream].active;
534}
535
536static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
537 void *data)
538{
539 dev_set_drvdata(dai->dev, data);
540}
541
542static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
543{
544 return dev_get_drvdata(dai->dev);
545}
546
547/**
548 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
549 * @dai: DAI
550 * @stream: STREAM (opaque structure depending on DAI type)
551 * @direction: Stream direction(Playback/Capture)
552 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
553 * the ASoC stream direction to configure sink/source ports.
554 * Playback maps to source ports and Capture for sink ports.
555 *
556 * This should be invoked with NULL to clear the stream set previously.
557 * Returns 0 on success, a negative error code otherwise.
558 */
559static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
560 void *stream, int direction)
561{
562 if (dai->driver->ops->set_stream)
563 return dai->driver->ops->set_stream(dai, stream, direction);
564 else
565 return -ENOTSUPP;
566}
567
568/**
569 * snd_soc_dai_get_stream() - Retrieves stream from DAI
570 * @dai: DAI
571 * @direction: Stream direction(Playback/Capture)
572 *
573 * This routine only retrieves that was previously configured
574 * with snd_soc_dai_get_stream()
575 *
576 * Returns pointer to stream or an ERR_PTR value, e.g.
577 * ERR_PTR(-ENOTSUPP) if callback is not supported;
578 */
579static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
580 int direction)
581{
582 if (dai->driver->ops->get_stream)
583 return dai->driver->ops->get_stream(dai, direction);
584 else
585 return ERR_PTR(-ENOTSUPP);
586}
587
588#endif
Note: See TracBrowser for help on using the repository browser.