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(const struct snd_soc_pcm_runtime *rtd);
184 u64 snd_soc_dai_get_fmt(const 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, const unsigned int *tx_slot,
192 unsigned int rx_num, const unsigned int *rx_slot);
193
194 int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
195
196 int snd_soc_dai_prepare(struct snd_soc_dai *dai,
197 struct snd_pcm_substream *substream);
198
199 /* Digital Audio Interface mute */
200 int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
201 int direction);
202
203
204 int snd_soc_dai_get_channel_map(const struct snd_soc_dai *dai,
205 unsigned int *tx_num, unsigned int *tx_slot,
206 unsigned int *rx_num, unsigned int *rx_slot);
207
208 int snd_soc_dai_is_dummy(const struct snd_soc_dai *dai);
209
210 int snd_soc_dai_hw_params(struct snd_soc_dai *dai,
211 struct snd_pcm_substream *substream,
212 struct snd_pcm_hw_params *params);
213 void snd_soc_dai_hw_free(struct snd_soc_dai *dai,
214 struct snd_pcm_substream *substream,
215 int rollback);
216 int snd_soc_dai_startup(struct snd_soc_dai *dai,
217 struct snd_pcm_substream *substream);
218 void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
219 struct snd_pcm_substream *substream, int rollback);
220 void snd_soc_dai_suspend(struct snd_soc_dai *dai);
221 void snd_soc_dai_resume(struct snd_soc_dai *dai);
222 int snd_soc_dai_compress_new(struct snd_soc_dai *dai, struct snd_soc_pcm_runtime *rtd);
223 bool snd_soc_dai_stream_valid(const struct snd_soc_dai *dai, int stream);
224 void snd_soc_dai_action(struct snd_soc_dai *dai,
225 int stream, int action);
snd_soc_dai_activate(struct snd_soc_dai * dai,int stream)226 static inline void snd_soc_dai_activate(struct snd_soc_dai *dai,
227 int stream)
228 {
229 snd_soc_dai_action(dai, stream, 1);
230 }
snd_soc_dai_deactivate(struct snd_soc_dai * dai,int stream)231 static inline void snd_soc_dai_deactivate(struct snd_soc_dai *dai,
232 int stream)
233 {
234 snd_soc_dai_action(dai, stream, -1);
235 }
236 int snd_soc_dai_active(const struct snd_soc_dai *dai);
237
238 int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order);
239 int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order);
240 int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd);
241 int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream);
242 int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd,
243 int rollback);
244 void snd_soc_pcm_dai_delay(struct snd_pcm_substream *substream,
245 snd_pcm_sframes_t *cpu_delay, snd_pcm_sframes_t *codec_delay);
246
247 int snd_soc_dai_compr_startup(struct snd_soc_dai *dai,
248 struct snd_compr_stream *cstream);
249 void snd_soc_dai_compr_shutdown(struct snd_soc_dai *dai,
250 struct snd_compr_stream *cstream,
251 int rollback);
252 int snd_soc_dai_compr_trigger(struct snd_soc_dai *dai,
253 struct snd_compr_stream *cstream, int cmd);
254 int snd_soc_dai_compr_set_params(struct snd_soc_dai *dai,
255 struct snd_compr_stream *cstream,
256 struct snd_compr_params *params);
257 int snd_soc_dai_compr_get_params(struct snd_soc_dai *dai,
258 struct snd_compr_stream *cstream,
259 struct snd_codec *params);
260 int snd_soc_dai_compr_ack(struct snd_soc_dai *dai,
261 struct snd_compr_stream *cstream,
262 size_t bytes);
263 int snd_soc_dai_compr_pointer(struct snd_soc_dai *dai,
264 struct snd_compr_stream *cstream,
265 struct snd_compr_tstamp *tstamp);
266 int snd_soc_dai_compr_set_metadata(struct snd_soc_dai *dai,
267 struct snd_compr_stream *cstream,
268 struct snd_compr_metadata *metadata);
269 int snd_soc_dai_compr_get_metadata(struct snd_soc_dai *dai,
270 struct snd_compr_stream *cstream,
271 struct snd_compr_metadata *metadata);
272
273 const char *snd_soc_dai_name_get(const struct snd_soc_dai *dai);
274
275 struct snd_soc_dai_ops {
276 /* DAI driver callbacks */
277 int (*probe)(struct snd_soc_dai *dai);
278 int (*remove)(struct snd_soc_dai *dai);
279 /* compress dai */
280 int (*compress_new)(struct snd_soc_pcm_runtime *rtd);
281 /* Optional Callback used at pcm creation*/
282 int (*pcm_new)(struct snd_soc_pcm_runtime *rtd,
283 struct snd_soc_dai *dai);
284
285 /*
286 * DAI clocking configuration, all optional.
287 * Called by soc_card drivers, normally in their hw_params.
288 */
289 int (*set_sysclk)(struct snd_soc_dai *dai,
290 int clk_id, unsigned int freq, int dir);
291 int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
292 unsigned int freq_in, unsigned int freq_out);
293 int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
294 int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
295
296 /*
297 * DAI format configuration
298 * Called by soc_card drivers, normally in their hw_params.
299 */
300 int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt);
301 int (*xlate_tdm_slot_mask)(unsigned int slots,
302 unsigned int *tx_mask, unsigned int *rx_mask);
303 int (*set_tdm_slot)(struct snd_soc_dai *dai,
304 unsigned int tx_mask, unsigned int rx_mask,
305 int slots, int slot_width);
306 int (*set_channel_map)(struct snd_soc_dai *dai,
307 unsigned int tx_num, const unsigned int *tx_slot,
308 unsigned int rx_num, const unsigned int *rx_slot);
309 int (*get_channel_map)(const struct snd_soc_dai *dai,
310 unsigned int *tx_num, unsigned int *tx_slot,
311 unsigned int *rx_num, unsigned int *rx_slot);
312 int (*set_tristate)(struct snd_soc_dai *dai, int tristate);
313
314 int (*set_stream)(struct snd_soc_dai *dai,
315 void *stream, int direction);
316 void *(*get_stream)(struct snd_soc_dai *dai, int direction);
317
318 /*
319 * DAI digital mute - optional.
320 * Called by soc-core to minimise any pops.
321 */
322 int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream);
323
324 /*
325 * ALSA PCM audio operations - all optional.
326 * Called by soc-core during audio PCM operations.
327 */
328 int (*startup)(struct snd_pcm_substream *,
329 struct snd_soc_dai *);
330 void (*shutdown)(struct snd_pcm_substream *,
331 struct snd_soc_dai *);
332 int (*hw_params)(struct snd_pcm_substream *,
333 struct snd_pcm_hw_params *, struct snd_soc_dai *);
334 int (*hw_free)(struct snd_pcm_substream *,
335 struct snd_soc_dai *);
336 int (*prepare)(struct snd_pcm_substream *,
337 struct snd_soc_dai *);
338 /*
339 * NOTE: Commands passed to the trigger function are not necessarily
340 * compatible with the current state of the dai. For example this
341 * sequence of commands is possible: START STOP STOP.
342 * So do not unconditionally use refcounting functions in the trigger
343 * function, e.g. clk_enable/disable.
344 */
345 int (*trigger)(struct snd_pcm_substream *, int,
346 struct snd_soc_dai *);
347
348 /*
349 * For hardware based FIFO caused delay reporting.
350 * Optional.
351 */
352 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
353 struct snd_soc_dai *);
354
355 /*
356 * Format list for auto selection.
357 * Format will be increased if priority format was
358 * not selected.
359 * see
360 * snd_soc_dai_get_fmt()
361 */
362 const u64 *auto_selectable_formats;
363 int num_auto_selectable_formats;
364
365 /* probe ordering - for components with runtime dependencies */
366 int probe_order;
367 int remove_order;
368
369 /* bit field */
370 unsigned int no_capture_mute:1;
371 unsigned int mute_unmute_on_trigger:1;
372 };
373
374 struct snd_soc_cdai_ops {
375 /*
376 * for compress ops
377 */
378 int (*startup)(struct snd_compr_stream *,
379 struct snd_soc_dai *);
380 int (*shutdown)(struct snd_compr_stream *,
381 struct snd_soc_dai *);
382 int (*set_params)(struct snd_compr_stream *,
383 struct snd_compr_params *, struct snd_soc_dai *);
384 int (*get_params)(struct snd_compr_stream *,
385 struct snd_codec *, struct snd_soc_dai *);
386 int (*set_metadata)(struct snd_compr_stream *,
387 struct snd_compr_metadata *, struct snd_soc_dai *);
388 int (*get_metadata)(struct snd_compr_stream *,
389 struct snd_compr_metadata *, struct snd_soc_dai *);
390 int (*trigger)(struct snd_compr_stream *, int,
391 struct snd_soc_dai *);
392 int (*pointer)(struct snd_compr_stream *,
393 struct snd_compr_tstamp *, struct snd_soc_dai *);
394 int (*ack)(struct snd_compr_stream *, size_t,
395 struct snd_soc_dai *);
396 };
397
398 /*
399 * Digital Audio Interface Driver.
400 *
401 * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97
402 * operations and capabilities. Codec and platform drivers will register this
403 * structure for every DAI they have.
404 *
405 * This structure covers the clocking, formating and ALSA operations for each
406 * interface.
407 */
408 struct snd_soc_dai_driver {
409 /* DAI description */
410 const char *name;
411 unsigned int id;
412 unsigned int base;
413 struct snd_soc_dobj dobj;
414 const struct of_phandle_args *dai_args;
415
416 /* ops */
417 const struct snd_soc_dai_ops *ops;
418 const struct snd_soc_cdai_ops *cops;
419
420 /* DAI capabilities */
421 struct snd_soc_pcm_stream capture;
422 struct snd_soc_pcm_stream playback;
423 unsigned int symmetric_rate:1;
424 unsigned int symmetric_channels:1;
425 unsigned int symmetric_sample_bits:1;
426 };
427
428 /* for Playback/Capture */
429 struct snd_soc_dai_stream {
430 struct snd_soc_dapm_widget *widget;
431
432 unsigned int active; /* usage count */
433 unsigned int tdm_mask; /* CODEC TDM slot masks and params (for fixup) */
434
435 void *dma_data; /* DAI DMA data */
436 };
437
438 /*
439 * Digital Audio Interface runtime data.
440 *
441 * Holds runtime data for a DAI.
442 */
443 struct snd_soc_dai {
444 const char *name;
445 int id;
446 struct device *dev;
447
448 /* driver ops */
449 struct snd_soc_dai_driver *driver;
450
451 /* DAI runtime info */
452 struct snd_soc_dai_stream stream[SNDRV_PCM_STREAM_LAST + 1];
453
454 /* Symmetry data - only valid if symmetry is being enforced */
455 unsigned int symmetric_rate;
456 unsigned int symmetric_channels;
457 unsigned int symmetric_sample_bits;
458
459 /* parent platform/codec */
460 struct snd_soc_component *component;
461
462 struct list_head list;
463
464 /* function mark */
465 struct snd_pcm_substream *mark_startup;
466 struct snd_pcm_substream *mark_hw_params;
467 struct snd_pcm_substream *mark_trigger;
468 struct snd_compr_stream *mark_compr_startup;
469
470 /* bit field */
471 unsigned int probed:1;
472 };
473
474 static inline const struct snd_soc_pcm_stream *
snd_soc_dai_get_pcm_stream(const struct snd_soc_dai * dai,int stream)475 snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream)
476 {
477 return (stream == SNDRV_PCM_STREAM_PLAYBACK) ?
478 &dai->driver->playback : &dai->driver->capture;
479 }
480
481 #define snd_soc_dai_get_widget_playback(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_PLAYBACK)
482 #define snd_soc_dai_get_widget_capture(dai) snd_soc_dai_get_widget(dai, SNDRV_PCM_STREAM_CAPTURE)
483 static inline
snd_soc_dai_get_widget(struct snd_soc_dai * dai,int stream)484 struct snd_soc_dapm_widget *snd_soc_dai_get_widget(struct snd_soc_dai *dai, int stream)
485 {
486 return dai->stream[stream].widget;
487 }
488
489 #define snd_soc_dai_set_widget_playback(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_PLAYBACK, widget)
490 #define snd_soc_dai_set_widget_capture(dai, widget) snd_soc_dai_set_widget(dai, SNDRV_PCM_STREAM_CAPTURE, widget)
491 static inline
snd_soc_dai_set_widget(struct snd_soc_dai * dai,int stream,struct snd_soc_dapm_widget * widget)492 void snd_soc_dai_set_widget(struct snd_soc_dai *dai, int stream, struct snd_soc_dapm_widget *widget)
493 {
494 dai->stream[stream].widget = widget;
495 }
496
497 #define snd_soc_dai_dma_data_get_playback(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_PLAYBACK)
498 #define snd_soc_dai_dma_data_get_capture(dai) snd_soc_dai_dma_data_get(dai, SNDRV_PCM_STREAM_CAPTURE)
499 #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)500 static inline void *snd_soc_dai_dma_data_get(const struct snd_soc_dai *dai, int stream)
501 {
502 return dai->stream[stream].dma_data;
503 }
504
505 #define snd_soc_dai_dma_data_set_playback(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_PLAYBACK, data)
506 #define snd_soc_dai_dma_data_set_capture(dai, data) snd_soc_dai_dma_data_set(dai, SNDRV_PCM_STREAM_CAPTURE, data)
507 #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)508 static inline void snd_soc_dai_dma_data_set(struct snd_soc_dai *dai, int stream, void *data)
509 {
510 dai->stream[stream].dma_data = data;
511 }
512
snd_soc_dai_init_dma_data(struct snd_soc_dai * dai,void * playback,void * capture)513 static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture)
514 {
515 snd_soc_dai_dma_data_set_playback(dai, playback);
516 snd_soc_dai_dma_data_set_capture(dai, capture);
517 }
518
snd_soc_dai_tdm_mask_get(const struct snd_soc_dai * dai,int stream)519 static inline unsigned int snd_soc_dai_tdm_mask_get(const struct snd_soc_dai *dai,
520 int stream)
521 {
522 return dai->stream[stream].tdm_mask;
523 }
524
snd_soc_dai_tdm_mask_set(struct snd_soc_dai * dai,int stream,unsigned int tdm_mask)525 static inline void snd_soc_dai_tdm_mask_set(struct snd_soc_dai *dai, int stream,
526 unsigned int tdm_mask)
527 {
528 dai->stream[stream].tdm_mask = tdm_mask;
529 }
530
snd_soc_dai_stream_active(const struct snd_soc_dai * dai,int stream)531 static inline unsigned int snd_soc_dai_stream_active(const struct snd_soc_dai *dai,
532 int stream)
533 {
534 /* see snd_soc_dai_action() for setup */
535 return dai->stream[stream].active;
536 }
537
snd_soc_dai_set_drvdata(struct snd_soc_dai * dai,void * data)538 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
539 void *data)
540 {
541 dev_set_drvdata(dai->dev, data);
542 }
543
snd_soc_dai_get_drvdata(struct snd_soc_dai * dai)544 static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai)
545 {
546 return dev_get_drvdata(dai->dev);
547 }
548
549 /**
550 * snd_soc_dai_set_stream() - Configures a DAI for stream operation
551 * @dai: DAI
552 * @stream: STREAM (opaque structure depending on DAI type)
553 * @direction: Stream direction(Playback/Capture)
554 * Some subsystems, such as SoundWire, don't have a notion of direction and we reuse
555 * the ASoC stream direction to configure sink/source ports.
556 * Playback maps to source ports and Capture for sink ports.
557 *
558 * This should be invoked with NULL to clear the stream set previously.
559 * Returns 0 on success, a negative error code otherwise.
560 */
snd_soc_dai_set_stream(struct snd_soc_dai * dai,void * stream,int direction)561 static inline int snd_soc_dai_set_stream(struct snd_soc_dai *dai,
562 void *stream, int direction)
563 {
564 if (dai->driver->ops->set_stream)
565 return dai->driver->ops->set_stream(dai, stream, direction);
566 else
567 return -ENOTSUPP;
568 }
569
570 /**
571 * snd_soc_dai_get_stream() - Retrieves stream from DAI
572 * @dai: DAI
573 * @direction: Stream direction(Playback/Capture)
574 *
575 * This routine only retrieves that was previously configured
576 * with snd_soc_dai_get_stream()
577 *
578 * Returns pointer to stream or an ERR_PTR value, e.g.
579 * ERR_PTR(-ENOTSUPP) if callback is not supported;
580 */
snd_soc_dai_get_stream(struct snd_soc_dai * dai,int direction)581 static inline void *snd_soc_dai_get_stream(struct snd_soc_dai *dai,
582 int direction)
583 {
584 if (dai->driver->ops->get_stream)
585 return dai->driver->ops->get_stream(dai, direction);
586 else
587 return ERR_PTR(-ENOTSUPP);
588 }
589
590 #endif
591