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