1 /* SPDX-License-Identifier: GPL-2.0
2 *
3 * linux/sound/soc-dai.h -- ALSA SoC Layer
4 *
5 * Copyright: 2005-2008 Wolfson Microelectronics. PLC.
6 *
7 * Digital Audio Interface (DAI) API.
8 */
9
10 #ifndef __LINUX_SND_SOC_DAI_H
11 #define __LINUX_SND_SOC_DAI_H
12
13
14 #include <linux/list.h>
15 #include <sound/asoc.h>
16
17 struct snd_pcm_substream;
18 struct snd_soc_dapm_widget;
19 struct snd_compr_stream;
20
21 /*
22 * DAI hardware audio formats.
23 *
24 * Describes the physical PCM data formating and clocking. Add new formats
25 * to the end.
26 */
27 #define SND_SOC_DAIFMT_I2S SND_SOC_DAI_FORMAT_I2S
28 #define SND_SOC_DAIFMT_RIGHT_J SND_SOC_DAI_FORMAT_RIGHT_J
29 #define SND_SOC_DAIFMT_LEFT_J SND_SOC_DAI_FORMAT_LEFT_J
30 #define SND_SOC_DAIFMT_DSP_A SND_SOC_DAI_FORMAT_DSP_A
31 #define SND_SOC_DAIFMT_DSP_B SND_SOC_DAI_FORMAT_DSP_B
32 #define SND_SOC_DAIFMT_AC97 SND_SOC_DAI_FORMAT_AC97
33 #define SND_SOC_DAIFMT_PDM SND_SOC_DAI_FORMAT_PDM
34
35 /* left and right justified also known as MSB and LSB respectively */
36 #define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J
37 #define SND_SOC_DAIFMT_LSB SND_SOC_DAIFMT_RIGHT_J
38
39 /* Describes the possible PCM format */
40 /*
41 * use SND_SOC_DAI_FORMAT_xx as eash shift.
42 * see
43 * snd_soc_runtime_get_dai_fmt()
44 */
45 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT 0
46 #define SND_SOC_POSSIBLE_DAIFMT_FORMAT_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_FORMAT_SHIFT)
47 #define SND_SOC_POSSIBLE_DAIFMT_I2S (1 << SND_SOC_DAI_FORMAT_I2S)
48 #define SND_SOC_POSSIBLE_DAIFMT_RIGHT_J (1 << SND_SOC_DAI_FORMAT_RIGHT_J)
49 #define SND_SOC_POSSIBLE_DAIFMT_LEFT_J (1 << SND_SOC_DAI_FORMAT_LEFT_J)
50 #define SND_SOC_POSSIBLE_DAIFMT_DSP_A (1 << SND_SOC_DAI_FORMAT_DSP_A)
51 #define SND_SOC_POSSIBLE_DAIFMT_DSP_B (1 << SND_SOC_DAI_FORMAT_DSP_B)
52 #define SND_SOC_POSSIBLE_DAIFMT_AC97 (1 << SND_SOC_DAI_FORMAT_AC97)
53 #define SND_SOC_POSSIBLE_DAIFMT_PDM (1 << SND_SOC_DAI_FORMAT_PDM)
54
55 /*
56 * DAI Clock gating.
57 *
58 * DAI bit clocks can be gated (disabled) when the DAI is not
59 * sending or receiving PCM data in a frame. This can be used to save power.
60 */
61 #define SND_SOC_DAIFMT_CONT (1 << 4) /* continuous clock */
62 #define SND_SOC_DAIFMT_GATED (0 << 4) /* clock is gated */
63
64 /* Describes the possible PCM format */
65 /*
66 * define GATED -> CONT. GATED will be selected if both are selected.
67 * see
68 * snd_soc_runtime_get_dai_fmt()
69 */
70 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT 16
71 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_MASK (0xFFFF << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
72 #define SND_SOC_POSSIBLE_DAIFMT_GATED (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
73 #define SND_SOC_POSSIBLE_DAIFMT_CONT (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_SHIFT)
74
75 /*
76 * DAI hardware signal polarity.
77 *
78 * Specifies whether the DAI can also support inverted clocks for the specified
79 * format.
80 *
81 * BCLK:
82 * - "normal" polarity means signal is available at rising edge of BCLK
83 * - "inverted" polarity means signal is available at falling edge of BCLK
84 *
85 * FSYNC "normal" polarity depends on the frame format:
86 * - I2S: frame consists of left then right channel data. Left channel starts
87 * with falling FSYNC edge, right channel starts with rising FSYNC edge.
88 * - Left/Right Justified: frame consists of left then right channel data.
89 * Left channel starts with rising FSYNC edge, right channel starts with
90 * falling FSYNC edge.
91 * - DSP A/B: Frame starts with rising FSYNC edge.
92 * - AC97: Frame starts with rising FSYNC edge.
93 *
94 * "Negative" FSYNC polarity is the one opposite of "normal" polarity.
95 */
96 #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */
97 #define SND_SOC_DAIFMT_NB_IF (2 << 8) /* normal BCLK + inv FRM */
98 #define SND_SOC_DAIFMT_IB_NF (3 << 8) /* invert BCLK + nor FRM */
99 #define SND_SOC_DAIFMT_IB_IF (4 << 8) /* invert BCLK + FRM */
100
101 /* Describes the possible PCM format */
102 #define SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT 32
103 #define SND_SOC_POSSIBLE_DAIFMT_INV_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
104 #define SND_SOC_POSSIBLE_DAIFMT_NB_NF (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
105 #define SND_SOC_POSSIBLE_DAIFMT_NB_IF (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
106 #define SND_SOC_POSSIBLE_DAIFMT_IB_NF (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
107 #define SND_SOC_POSSIBLE_DAIFMT_IB_IF (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_INV_SHIFT)
108
109 /*
110 * DAI hardware clock providers/consumers
111 *
112 * This is wrt the codec, the inverse is true for the interface
113 * i.e. if the codec is clk and FRM provider then the interface is
114 * clk and frame consumer.
115 */
116 #define SND_SOC_DAIFMT_CBP_CFP (1 << 12) /* codec clk provider & frame provider */
117 #define SND_SOC_DAIFMT_CBC_CFP (2 << 12) /* codec clk consumer & frame provider */
118 #define SND_SOC_DAIFMT_CBP_CFC (3 << 12) /* codec clk provider & frame consumer */
119 #define SND_SOC_DAIFMT_CBC_CFC (4 << 12) /* codec clk consumer & frame consumer */
120
121 /* previous definitions kept for backwards-compatibility, do not use in new contributions */
122 #define SND_SOC_DAIFMT_CBM_CFM SND_SOC_DAIFMT_CBP_CFP
123 #define SND_SOC_DAIFMT_CBS_CFM SND_SOC_DAIFMT_CBC_CFP
124 #define SND_SOC_DAIFMT_CBM_CFS SND_SOC_DAIFMT_CBP_CFC
125 #define SND_SOC_DAIFMT_CBS_CFS SND_SOC_DAIFMT_CBC_CFC
126
127 /* when passed to set_fmt directly indicate if the device is provider or consumer */
128 #define SND_SOC_DAIFMT_BP_FP SND_SOC_DAIFMT_CBP_CFP
129 #define SND_SOC_DAIFMT_BC_FP SND_SOC_DAIFMT_CBC_CFP
130 #define SND_SOC_DAIFMT_BP_FC SND_SOC_DAIFMT_CBP_CFC
131 #define SND_SOC_DAIFMT_BC_FC SND_SOC_DAIFMT_CBC_CFC
132
133 /* Describes the possible PCM format */
134 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT 48
135 #define SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_MASK (0xFFFFULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
136 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFP (0x1ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
137 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFP (0x2ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
138 #define SND_SOC_POSSIBLE_DAIFMT_CBP_CFC (0x4ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
139 #define SND_SOC_POSSIBLE_DAIFMT_CBC_CFC (0x8ULL << SND_SOC_POSSIBLE_DAIFMT_CLOCK_PROVIDER_SHIFT)
140
141 #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f
142 #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0
143 #define SND_SOC_DAIFMT_INV_MASK 0x0f00
144 #define SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK 0xf000
145
146 #define SND_SOC_DAIFMT_MASTER_MASK SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK
147
148 /*
149 * Master Clock Directions
150 */
151 #define SND_SOC_CLOCK_IN 0
152 #define SND_SOC_CLOCK_OUT 1
153
154 #define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\
155 SNDRV_PCM_FMTBIT_S16_LE |\
156 SNDRV_PCM_FMTBIT_S16_BE |\
157 SNDRV_PCM_FMTBIT_S20_3LE |\
158 SNDRV_PCM_FMTBIT_S20_3BE |\
159 SNDRV_PCM_FMTBIT_S20_LE |\
160 SNDRV_PCM_FMTBIT_S20_BE |\
161 SNDRV_PCM_FMTBIT_S24_3LE |\
162 SNDRV_PCM_FMTBIT_S24_3BE |\
163 SNDRV_PCM_FMTBIT_S32_LE |\
164 SNDRV_PCM_FMTBIT_S32_BE)
165
166 struct snd_soc_dai_driver;
167 struct snd_soc_dai;
168 struct snd_ac97_bus_ops;
169
170 /* Digital Audio Interface clocking API.*/
171 int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
172 unsigned int freq, int dir);
173
174 int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
175 int div_id, int div);
176
177 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
178 int pll_id, int source, unsigned int freq_in, unsigned int freq_out);
179
180 int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
181
182 /* Digital Audio interface formatting */
183 int snd_soc_dai_get_fmt_max_priority(struct snd_soc_pcm_runtime *rtd);
184 u64 snd_soc_dai_get_fmt(struct snd_soc_dai *dai, int priority);
185 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
186
187 int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
188 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width);
189
190 int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
191 unsigned int tx_num, unsigned int *tx_slot,
192 unsigned int rx_num, unsigned int *rx_slot);
193
194 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
195
196 /* Digital Audio Interface mute */
197 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
198 int direction);
199
200
201 int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai,
202 unsigned int *tx_num, unsigned int *tx_slot,
203 unsigned int *rx_num, unsigned int *rx_slot);
204
205 int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);
206
207 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
208 struct snd_pcm_substream *substream,
209 struct snd_pcm_hw_params *params);
210 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
211 struct snd_pcm_substream *substream,
212 int rollback);
213 int snd_soc_dai_startup(struct snd_soc_dai *dai,
214 struct snd_pcm_substream *substream);
215 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
216 struct snd_pcm_substream *substream, int rollback);
217 void snd_soc_dai_suspend(struct snd_soc_dai *dai);
218 void snd_soc_dai_resume(struct snd_soc_dai *dai);
219 int snd_soc_dai_compress_new(struct snd_soc_dai *dai,
220 struct snd_soc_pcm_runtime *rtd, int num);
221 bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream);
222 void snd_soc_dai_link_set_capabilities(struct snd_soc_dai_link *dai_link);
223 void snd_soc_dai_action(struct snd_soc_dai *dai,
224 int stream, int action);
snd_soc_dai_activate(struct snd_soc_dai * dai,int stream)225 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
226 int stream)
227 {
228 snd_soc_dai_action(dai, stream, 1);
229 }
snd_soc_dai_deactivate(struct snd_soc_dai * dai,int stream)230 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
231 int stream)
232 {
233 snd_soc_dai_action(dai, stream, -1);
234 }
235 int snd_soc_dai_active(struct snd_soc_dai *dai);
236
237 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
238 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
239 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
240 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
241 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
242 int rollback);
243 int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream,
244 int cmd);
245 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
246 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
247
248 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
249 struct snd_compr_stream *cstream);
250 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
251 struct snd_compr_stream *cstream,
252 int rollback);
253 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
254 struct snd_compr_stream *cstream, int cmd);
255 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
256 struct snd_compr_stream *cstream,
257 struct snd_compr_params *params);
258 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
259 struct snd_compr_stream *cstream,
260 struct snd_codec *params);
261 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
262 struct snd_compr_stream *cstream,
263 size_t bytes);
264 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
265 struct snd_compr_stream *cstream,
266 struct snd_compr_tstamp *tstamp);
267 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
268 struct snd_compr_stream *cstream,
269 struct snd_compr_metadata *metadata);
270 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
271 struct snd_compr_stream *cstream,
272 struct snd_compr_metadata *metadata);
273
274 struct snd_soc_dai_ops {
275 /*
276 * DAI clocking configuration, all optional.
277 * Called by soc_card drivers, normally in their hw_params.
278 */
279 int (*set_sysclk)(struct snd_soc_dai *dai,
280 int clk_id, unsigned int freq, int dir);
281 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
282 unsigned int freq_in, unsigned int freq_out);
283 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
284 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
285
286 /*
287 * DAI format configuration
288 * Called by soc_card drivers, normally in their hw_params.
289 */
290 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
291 int (*xlate_tdm_slot_mask)(unsigned int slots,
292 unsigned int *tx_mask, unsigned int *rx_mask);
293 int (*set_tdm_slot)(struct snd_soc_dai *dai,
294 unsigned int tx_mask, unsigned int rx_mask,
295 int slots, int slot_width);
296 int (*set_channel_map)(struct snd_soc_dai *dai,
297 unsigned int tx_num, unsigned int *tx_slot,
298 unsigned int rx_num, unsigned int *rx_slot);
299 int (*get_channel_map)(struct snd_soc_dai *dai,
300 unsigned int *tx_num, unsigned int *tx_slot,
301 unsigned int *rx_num, unsigned int *rx_slot);
302 int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
303
304 int (*set_stream)(struct snd_soc_dai *dai,
305 void *stream, int direction);
306 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
307
308 /*
309 * DAI digital mute - optional.
310 * Called by soc-core to minimise any pops.
311 */
312 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
313
314 /*
315 * ALSA PCM audio operations - all optional.
316 * Called by soc-core during audio PCM operations.
317 */
318 int (*startup)(struct snd_pcm_substream *,
319 struct snd_soc_dai *);
320 void (*shutdown)(struct snd_pcm_substream *,
321 struct snd_soc_dai *);
322 int (*hw_params)(struct snd_pcm_substream *,
323 struct snd_pcm_hw_params *, struct snd_soc_dai *);
324 int (*hw_free)(struct snd_pcm_substream *,
325 struct snd_soc_dai *);
326 int (*prepare)(struct snd_pcm_substream *,
327 struct snd_soc_dai *);
328 /*
329 * NOTE: Commands passed to the trigger function are not necessarily
330 * compatible with the current state of the dai. For example this
331 * sequence of commands is possible: START STOP STOP.
332 * So do not unconditionally use refcounting functions in the trigger
333 * function, e.g. clk_enable/disable.
334 */
335 int (*trigger)(struct snd_pcm_substream *, int,
336 struct snd_soc_dai *);
337 int (*bespoke_trigger)(struct snd_pcm_substream *, int,
338 struct snd_soc_dai *);
339 /*
340 * For hardware based FIFO caused delay reporting.
341 * Optional.
342 */
343 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
344 struct snd_soc_dai *);
345
346 /*
347 * Format list for auto selection.
348 * Format will be increased if priority format was
349 * not selected.
350 * see
351 * snd_soc_dai_get_fmt()
352 */
353 u64 *auto_selectable_formats;
354 int num_auto_selectable_formats;
355
356 /* bit field */
357 unsigned int no_capture_mute:1;
358 };
359
360 struct snd_soc_cdai_ops {
361 /*
362 * for compress ops
363 */
364 int (*startup)(struct snd_compr_stream *,
365 struct snd_soc_dai *);
366 int (*shutdown)(struct snd_compr_stream *,
367 struct snd_soc_dai *);
368 int (*set_params)(struct snd_compr_stream *,
369 struct snd_compr_params *, struct snd_soc_dai *);
370 int (*get_params)(struct snd_compr_stream *,
371 struct snd_codec *, struct snd_soc_dai *);
372 int (*set_metadata)(struct snd_compr_stream *,
373 struct snd_compr_metadata *, struct snd_soc_dai *);
374 int (*get_metadata)(struct snd_compr_stream *,
375 struct snd_compr_metadata *, struct snd_soc_dai *);
376 int (*trigger)(struct snd_compr_stream *, int,
377 struct snd_soc_dai *);
378 int (*pointer)(struct snd_compr_stream *,
379 struct snd_compr_tstamp *, struct snd_soc_dai *);
380 int (*ack)(struct snd_compr_stream *, size_t,
381 struct snd_soc_dai *);
382 };
383
384 /*
385 * Digital Audio Interface Driver.
386 *
387 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
388 * operations and capabilities. Codec and platform drivers will register this
389 * structure for every DAI they have.
390 *
391 * This structure covers the clocking, formating and ALSA operations for each
392 * interface.
393 */
394 struct snd_soc_dai_driver {
395 /* DAI description */
396 const char *name;
397 unsigned int id;
398 unsigned int base;
399 struct snd_soc_dobj dobj;
400
401 /* DAI driver callbacks */
402 int (*probe)(struct snd_soc_dai *dai);
403 int (*remove)(struct snd_soc_dai *dai);
404 /* compress dai */
405 int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num);
406 /* Optional Callback used at pcm creation*/
407 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
408 struct snd_soc_dai *dai);
409
410 /* ops */
411 const struct snd_soc_dai_ops *ops;
412 const struct snd_soc_cdai_ops *cops;
413
414 /* DAI capabilities */
415 struct snd_soc_pcm_stream capture;
416 struct snd_soc_pcm_stream playback;
417 unsigned int symmetric_rate:1;
418 unsigned int symmetric_channels:1;
419 unsigned int symmetric_sample_bits:1;
420
421 /* probe ordering - for components with runtime dependencies */
422 int probe_order;
423 int remove_order;
424 };
425
426 /* for Playback/Capture */
427 struct 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 */
441 struct 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
472 static inline struct snd_soc_pcm_stream *
snd_soc_dai_get_pcm_stream(const struct snd_soc_dai * dai,int stream)473 snd_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)
481 static inline
snd_soc_dai_get_widget(struct snd_soc_dai * dai,int stream)482 struct 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)
489 static inline
snd_soc_dai_set_widget(struct snd_soc_dai * dai,int stream,struct snd_soc_dapm_widget * widget)490 void 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)
snd_soc_dai_dma_data_get(const struct snd_soc_dai * dai,int stream)498 static 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)
snd_soc_dai_dma_data_set(struct snd_soc_dai * dai,int stream,void * data)506 static 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
snd_soc_dai_init_dma_data(struct snd_soc_dai * dai,void * playback,void * capture)511 static 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
snd_soc_dai_tdm_mask_get(struct snd_soc_dai * dai,int stream)517 static inline unsigned int snd_soc_dai_tdm_mask_get(struct snd_soc_dai *dai, int stream)
518 {
519 return dai->stream[stream].tdm_mask;
520 }
521
snd_soc_dai_tdm_mask_set(struct snd_soc_dai * dai,int stream,unsigned int tdm_mask)522 static 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
snd_soc_dai_stream_active(struct snd_soc_dai * dai,int stream)528 static inline unsigned int snd_soc_dai_stream_active(struct snd_soc_dai *dai, int stream)
529 {
530 /* see snd_soc_dai_action() for setup */
531 return dai->stream[stream].active;
532 }
533
snd_soc_dai_set_drvdata(struct snd_soc_dai * dai,void * data)534 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
535 void *data)
536 {
537 dev_set_drvdata(dai->dev, data);
538 }
539
snd_soc_dai_get_drvdata(struct snd_soc_dai * dai)540 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
541 {
542 return dev_get_drvdata(dai->dev);
543 }
544
545 /**
546 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
547 * @dai: DAI
548 * @stream: STREAM (opaque structure depending on DAI type)
549 * @direction: Stream direction(Playback/Capture)
550 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
551 * the ASoC stream direction to configure sink/source ports.
552 * Playback maps to source ports and Capture for sink ports.
553 *
554 * This should be invoked with NULL to clear the stream set previously.
555 * Returns 0 on success, a negative error code otherwise.
556 */
snd_soc_dai_set_stream(struct snd_soc_dai * dai,void * stream,int direction)557 static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
558 void *stream, int direction)
559 {
560 if (dai->driver->ops->set_stream)
561 return dai->driver->ops->set_stream(dai, stream, direction);
562 else
563 return -ENOTSUPP;
564 }
565
566 /**
567 * snd_soc_dai_get_stream() - Retrieves stream from DAI
568 * @dai: DAI
569 * @direction: Stream direction(Playback/Capture)
570 *
571 * This routine only retrieves that was previously configured
572 * with snd_soc_dai_get_stream()
573 *
574 * Returns pointer to stream or an ERR_PTR value, e.g.
575 * ERR_PTR(-ENOTSUPP) if callback is not supported;
576 */
snd_soc_dai_get_stream(struct snd_soc_dai * dai,int direction)577 static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
578 int direction)
579 {
580 if (dai->driver->ops->get_stream)
581 return dai->driver->ops->get_stream(dai, direction);
582 else
583 return ERR_PTR(-ENOTSUPP);
584 }
585
586 #endif
587