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e2cfd2c9 KM |
1 | /* SPDX-License-Identifier: GPL-2.0 |
2 | * | |
a47cbe72 MB |
3 | * linux/sound/soc-dai.h -- ALSA SoC Layer |
4 | * | |
5 | * Copyright: 2005-2008 Wolfson Microelectronics. PLC. | |
6 | * | |
a47cbe72 MB |
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> | |
d2e3cb85 | 15 | #include <sound/asoc.h> |
a47cbe72 MB |
16 | |
17 | struct snd_pcm_substream; | |
888df395 | 18 | struct snd_soc_dapm_widget; |
49681077 | 19 | struct snd_compr_stream; |
a47cbe72 MB |
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 | */ | |
d2e3cb85 ML |
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 | |
a47cbe72 MB |
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 | /* | |
40 | * DAI Clock gating. | |
41 | * | |
47db8e89 | 42 | * DAI bit clocks can be be gated (disabled) when the DAI is not |
a47cbe72 MB |
43 | * sending or receiving PCM data in a frame. This can be used to save power. |
44 | */ | |
75d9ac46 | 45 | #define SND_SOC_DAIFMT_CONT (1 << 4) /* continuous clock */ |
eef28e10 | 46 | #define SND_SOC_DAIFMT_GATED (0 << 4) /* clock is gated */ |
a47cbe72 | 47 | |
a47cbe72 | 48 | /* |
1d387a3f | 49 | * DAI hardware signal polarity. |
a47cbe72 MB |
50 | * |
51 | * Specifies whether the DAI can also support inverted clocks for the specified | |
52 | * format. | |
1d387a3f AP |
53 | * |
54 | * BCLK: | |
55 | * - "normal" polarity means signal is available at rising edge of BCLK | |
56 | * - "inverted" polarity means signal is available at falling edge of BCLK | |
57 | * | |
58 | * FSYNC "normal" polarity depends on the frame format: | |
59 | * - I2S: frame consists of left then right channel data. Left channel starts | |
60 | * with falling FSYNC edge, right channel starts with rising FSYNC edge. | |
61 | * - Left/Right Justified: frame consists of left then right channel data. | |
62 | * Left channel starts with rising FSYNC edge, right channel starts with | |
63 | * falling FSYNC edge. | |
64 | * - DSP A/B: Frame starts with rising FSYNC edge. | |
65 | * - AC97: Frame starts with rising FSYNC edge. | |
66 | * | |
67 | * "Negative" FSYNC polarity is the one opposite of "normal" polarity. | |
a47cbe72 | 68 | */ |
5d163336 | 69 | #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */ |
75d9ac46 MB |
70 | #define SND_SOC_DAIFMT_NB_IF (2 << 8) /* normal BCLK + inv FRM */ |
71 | #define SND_SOC_DAIFMT_IB_NF (3 << 8) /* invert BCLK + nor FRM */ | |
72 | #define SND_SOC_DAIFMT_IB_IF (4 << 8) /* invert BCLK + FRM */ | |
a47cbe72 MB |
73 | |
74 | /* | |
75 | * DAI hardware clock masters. | |
76 | * | |
77 | * This is wrt the codec, the inverse is true for the interface | |
47db8e89 | 78 | * i.e. if the codec is clk and FRM master then the interface is |
a47cbe72 MB |
79 | * clk and frame slave. |
80 | */ | |
75d9ac46 MB |
81 | #define SND_SOC_DAIFMT_CBM_CFM (1 << 12) /* codec clk & FRM master */ |
82 | #define SND_SOC_DAIFMT_CBS_CFM (2 << 12) /* codec clk slave & FRM master */ | |
83 | #define SND_SOC_DAIFMT_CBM_CFS (3 << 12) /* codec clk master & frame slave */ | |
84 | #define SND_SOC_DAIFMT_CBS_CFS (4 << 12) /* codec clk & FRM slave */ | |
a47cbe72 MB |
85 | |
86 | #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f | |
87 | #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0 | |
88 | #define SND_SOC_DAIFMT_INV_MASK 0x0f00 | |
89 | #define SND_SOC_DAIFMT_MASTER_MASK 0xf000 | |
90 | ||
91 | /* | |
92 | * Master Clock Directions | |
93 | */ | |
94 | #define SND_SOC_CLOCK_IN 0 | |
95 | #define SND_SOC_CLOCK_OUT 1 | |
96 | ||
8f738d58 MB |
97 | #define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\ |
98 | SNDRV_PCM_FMTBIT_S16_LE |\ | |
99 | SNDRV_PCM_FMTBIT_S16_BE |\ | |
100 | SNDRV_PCM_FMTBIT_S20_3LE |\ | |
101 | SNDRV_PCM_FMTBIT_S20_3BE |\ | |
823dbb6e MS |
102 | SNDRV_PCM_FMTBIT_S20_LE |\ |
103 | SNDRV_PCM_FMTBIT_S20_BE |\ | |
8f738d58 MB |
104 | SNDRV_PCM_FMTBIT_S24_3LE |\ |
105 | SNDRV_PCM_FMTBIT_S24_3BE |\ | |
d34c4307 JS |
106 | SNDRV_PCM_FMTBIT_S32_LE |\ |
107 | SNDRV_PCM_FMTBIT_S32_BE) | |
33f503c9 | 108 | |
f0fba2ad | 109 | struct snd_soc_dai_driver; |
a47cbe72 MB |
110 | struct snd_soc_dai; |
111 | struct snd_ac97_bus_ops; | |
112 | ||
113 | /* Digital Audio Interface clocking API.*/ | |
114 | int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, | |
115 | unsigned int freq, int dir); | |
116 | ||
117 | int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, | |
118 | int div_id, int div); | |
119 | ||
120 | int snd_soc_dai_set_pll(struct snd_soc_dai *dai, | |
85488037 | 121 | int pll_id, int source, unsigned int freq_in, unsigned int freq_out); |
a47cbe72 | 122 | |
e54cf76b LG |
123 | int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio); |
124 | ||
a47cbe72 MB |
125 | /* Digital Audio interface formatting */ |
126 | int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt); | |
127 | ||
128 | int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, | |
a5479e38 | 129 | unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width); |
a47cbe72 | 130 | |
472df3cb BS |
131 | int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, |
132 | unsigned int tx_num, unsigned int *tx_slot, | |
133 | unsigned int rx_num, unsigned int *rx_slot); | |
134 | ||
a47cbe72 MB |
135 | int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate); |
136 | ||
137 | /* Digital Audio Interface mute */ | |
da18396f MB |
138 | int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute, |
139 | int direction); | |
a47cbe72 | 140 | |
467b061f SK |
141 | |
142 | int snd_soc_dai_get_channel_map(struct snd_soc_dai *dai, | |
143 | unsigned int *tx_num, unsigned int *tx_slot, | |
144 | unsigned int *rx_num, unsigned int *rx_slot); | |
145 | ||
bece9e95 LG |
146 | int snd_soc_dai_is_dummy(struct snd_soc_dai *dai); |
147 | ||
aa6166c2 KM |
148 | int snd_soc_dai_hw_params(struct snd_soc_dai *dai, |
149 | struct snd_pcm_substream *substream, | |
150 | struct snd_pcm_hw_params *params); | |
846faaed KM |
151 | void snd_soc_dai_hw_free(struct snd_soc_dai *dai, |
152 | struct snd_pcm_substream *substream); | |
5a52a045 KM |
153 | int snd_soc_dai_startup(struct snd_soc_dai *dai, |
154 | struct snd_pcm_substream *substream); | |
330fcb51 KM |
155 | void snd_soc_dai_shutdown(struct snd_soc_dai *dai, |
156 | struct snd_pcm_substream *substream); | |
1dea80d4 KM |
157 | snd_pcm_sframes_t snd_soc_dai_delay(struct snd_soc_dai *dai, |
158 | struct snd_pcm_substream *substream); | |
e0f22622 | 159 | void snd_soc_dai_suspend(struct snd_soc_dai *dai); |
24b09d05 | 160 | void snd_soc_dai_resume(struct snd_soc_dai *dai); |
b423c420 KM |
161 | int snd_soc_dai_compress_new(struct snd_soc_dai *dai, |
162 | struct snd_soc_pcm_runtime *rtd, int num); | |
467fece8 | 163 | bool snd_soc_dai_stream_valid(struct snd_soc_dai *dai, int stream); |
aa6166c2 | 164 | |
51801aea | 165 | int snd_soc_pcm_dai_probe(struct snd_soc_pcm_runtime *rtd, int order); |
7eaa313b | 166 | int snd_soc_pcm_dai_remove(struct snd_soc_pcm_runtime *rtd, int order); |
0b73ba55 | 167 | int snd_soc_pcm_dai_new(struct snd_soc_pcm_runtime *rtd); |
d108c7fd | 168 | int snd_soc_pcm_dai_prepare(struct snd_pcm_substream *substream); |
42f2472d | 169 | int snd_soc_pcm_dai_trigger(struct snd_pcm_substream *substream, int cmd); |
30819358 KM |
170 | int snd_soc_pcm_dai_bespoke_trigger(struct snd_pcm_substream *substream, |
171 | int cmd); | |
0b73ba55 | 172 | |
a47cbe72 MB |
173 | struct snd_soc_dai_ops { |
174 | /* | |
175 | * DAI clocking configuration, all optional. | |
176 | * Called by soc_card drivers, normally in their hw_params. | |
177 | */ | |
178 | int (*set_sysclk)(struct snd_soc_dai *dai, | |
179 | int clk_id, unsigned int freq, int dir); | |
85488037 MB |
180 | int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source, |
181 | unsigned int freq_in, unsigned int freq_out); | |
a47cbe72 | 182 | int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); |
e54cf76b | 183 | int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio); |
a47cbe72 MB |
184 | |
185 | /* | |
186 | * DAI format configuration | |
187 | * Called by soc_card drivers, normally in their hw_params. | |
188 | */ | |
189 | int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); | |
e5c21514 | 190 | int (*xlate_tdm_slot_mask)(unsigned int slots, |
89c67857 | 191 | unsigned int *tx_mask, unsigned int *rx_mask); |
a47cbe72 | 192 | int (*set_tdm_slot)(struct snd_soc_dai *dai, |
a5479e38 DR |
193 | unsigned int tx_mask, unsigned int rx_mask, |
194 | int slots, int slot_width); | |
472df3cb BS |
195 | int (*set_channel_map)(struct snd_soc_dai *dai, |
196 | unsigned int tx_num, unsigned int *tx_slot, | |
197 | unsigned int rx_num, unsigned int *rx_slot); | |
467b061f SK |
198 | int (*get_channel_map)(struct snd_soc_dai *dai, |
199 | unsigned int *tx_num, unsigned int *tx_slot, | |
200 | unsigned int *rx_num, unsigned int *rx_slot); | |
a47cbe72 MB |
201 | int (*set_tristate)(struct snd_soc_dai *dai, int tristate); |
202 | ||
97349b60 SN |
203 | int (*set_sdw_stream)(struct snd_soc_dai *dai, |
204 | void *stream, int direction); | |
36d73c4a PLB |
205 | void *(*get_sdw_stream)(struct snd_soc_dai *dai, int direction); |
206 | ||
a47cbe72 MB |
207 | /* |
208 | * DAI digital mute - optional. | |
209 | * Called by soc-core to minimise any pops. | |
210 | */ | |
211 | int (*digital_mute)(struct snd_soc_dai *dai, int mute); | |
da18396f | 212 | int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream); |
dee89c4d MB |
213 | |
214 | /* | |
215 | * ALSA PCM audio operations - all optional. | |
216 | * Called by soc-core during audio PCM operations. | |
217 | */ | |
218 | int (*startup)(struct snd_pcm_substream *, | |
219 | struct snd_soc_dai *); | |
220 | void (*shutdown)(struct snd_pcm_substream *, | |
221 | struct snd_soc_dai *); | |
222 | int (*hw_params)(struct snd_pcm_substream *, | |
223 | struct snd_pcm_hw_params *, struct snd_soc_dai *); | |
224 | int (*hw_free)(struct snd_pcm_substream *, | |
225 | struct snd_soc_dai *); | |
226 | int (*prepare)(struct snd_pcm_substream *, | |
227 | struct snd_soc_dai *); | |
9f1614aa MP |
228 | /* |
229 | * NOTE: Commands passed to the trigger function are not necessarily | |
230 | * compatible with the current state of the dai. For example this | |
231 | * sequence of commands is possible: START STOP STOP. | |
232 | * So do not unconditionally use refcounting functions in the trigger | |
233 | * function, e.g. clk_enable/disable. | |
234 | */ | |
dee89c4d MB |
235 | int (*trigger)(struct snd_pcm_substream *, int, |
236 | struct snd_soc_dai *); | |
07bf84aa LG |
237 | int (*bespoke_trigger)(struct snd_pcm_substream *, int, |
238 | struct snd_soc_dai *); | |
258020d0 PU |
239 | /* |
240 | * For hardware based FIFO caused delay reporting. | |
241 | * Optional. | |
242 | */ | |
243 | snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, | |
244 | struct snd_soc_dai *); | |
a47cbe72 MB |
245 | }; |
246 | ||
2e622ae4 VK |
247 | struct snd_soc_cdai_ops { |
248 | /* | |
249 | * for compress ops | |
250 | */ | |
251 | int (*startup)(struct snd_compr_stream *, | |
252 | struct snd_soc_dai *); | |
253 | int (*shutdown)(struct snd_compr_stream *, | |
254 | struct snd_soc_dai *); | |
255 | int (*set_params)(struct snd_compr_stream *, | |
256 | struct snd_compr_params *, struct snd_soc_dai *); | |
257 | int (*get_params)(struct snd_compr_stream *, | |
258 | struct snd_codec *, struct snd_soc_dai *); | |
259 | int (*set_metadata)(struct snd_compr_stream *, | |
260 | struct snd_compr_metadata *, struct snd_soc_dai *); | |
261 | int (*get_metadata)(struct snd_compr_stream *, | |
262 | struct snd_compr_metadata *, struct snd_soc_dai *); | |
263 | int (*trigger)(struct snd_compr_stream *, int, | |
264 | struct snd_soc_dai *); | |
265 | int (*pointer)(struct snd_compr_stream *, | |
266 | struct snd_compr_tstamp *, struct snd_soc_dai *); | |
267 | int (*ack)(struct snd_compr_stream *, size_t, | |
268 | struct snd_soc_dai *); | |
269 | }; | |
270 | ||
a47cbe72 | 271 | /* |
f0fba2ad | 272 | * Digital Audio Interface Driver. |
a47cbe72 | 273 | * |
f0fba2ad LG |
274 | * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97 |
275 | * operations and capabilities. Codec and platform drivers will register this | |
276 | * structure for every DAI they have. | |
277 | * | |
278 | * This structure covers the clocking, formating and ALSA operations for each | |
279 | * interface. | |
a47cbe72 | 280 | */ |
f0fba2ad | 281 | struct snd_soc_dai_driver { |
a47cbe72 | 282 | /* DAI description */ |
f0fba2ad | 283 | const char *name; |
a47cbe72 | 284 | unsigned int id; |
62368294 | 285 | unsigned int base; |
68003e6c | 286 | struct snd_soc_dobj dobj; |
a47cbe72 | 287 | |
f0fba2ad LG |
288 | /* DAI driver callbacks */ |
289 | int (*probe)(struct snd_soc_dai *dai); | |
290 | int (*remove)(struct snd_soc_dai *dai); | |
49681077 | 291 | /* compress dai */ |
6f0c4226 | 292 | int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num); |
25f7b701 AP |
293 | /* Optional Callback used at pcm creation*/ |
294 | int (*pcm_new)(struct snd_soc_pcm_runtime *rtd, | |
295 | struct snd_soc_dai *dai); | |
a47cbe72 MB |
296 | |
297 | /* ops */ | |
1ee46ebd | 298 | const struct snd_soc_dai_ops *ops; |
2e622ae4 | 299 | const struct snd_soc_cdai_ops *cops; |
a47cbe72 MB |
300 | |
301 | /* DAI capabilities */ | |
302 | struct snd_soc_pcm_stream capture; | |
303 | struct snd_soc_pcm_stream playback; | |
06f409d7 | 304 | unsigned int symmetric_rates:1; |
3635bf09 NC |
305 | unsigned int symmetric_channels:1; |
306 | unsigned int symmetric_samplebits:1; | |
0168bf0d LG |
307 | |
308 | /* probe ordering - for components with runtime dependencies */ | |
309 | int probe_order; | |
310 | int remove_order; | |
f0fba2ad LG |
311 | }; |
312 | ||
313 | /* | |
314 | * Digital Audio Interface runtime data. | |
315 | * | |
316 | * Holds runtime data for a DAI. | |
317 | */ | |
318 | struct snd_soc_dai { | |
319 | const char *name; | |
320 | int id; | |
321 | struct device *dev; | |
f0fba2ad LG |
322 | |
323 | /* driver ops */ | |
324 | struct snd_soc_dai_driver *driver; | |
a47cbe72 MB |
325 | |
326 | /* DAI runtime info */ | |
0f6011fd | 327 | unsigned int stream_active[SNDRV_PCM_STREAM_LAST + 1]; /* usage count */ |
39b2238e | 328 | |
a47cbe72 | 329 | unsigned int active; |
a47cbe72 | 330 | |
888df395 MB |
331 | struct snd_soc_dapm_widget *playback_widget; |
332 | struct snd_soc_dapm_widget *capture_widget; | |
333 | ||
f0fba2ad LG |
334 | /* DAI DMA data */ |
335 | void *playback_dma_data; | |
336 | void *capture_dma_data; | |
a47cbe72 | 337 | |
17841020 DA |
338 | /* Symmetry data - only valid if symmetry is being enforced */ |
339 | unsigned int rate; | |
3635bf09 NC |
340 | unsigned int channels; |
341 | unsigned int sample_bits; | |
17841020 | 342 | |
f0fba2ad | 343 | /* parent platform/codec */ |
6106d129 | 344 | struct snd_soc_component *component; |
2466ab97 | 345 | |
88bd870f BC |
346 | /* CODEC TDM slot masks and params (for fixup) */ |
347 | unsigned int tx_mask; | |
348 | unsigned int rx_mask; | |
349 | ||
a47cbe72 | 350 | struct list_head list; |
b56be800 KM |
351 | |
352 | /* bit field */ | |
353 | unsigned int probed:1; | |
a47cbe72 MB |
354 | }; |
355 | ||
acf253c1 KM |
356 | static inline struct snd_soc_pcm_stream * |
357 | snd_soc_dai_get_pcm_stream(const struct snd_soc_dai *dai, int stream) | |
358 | { | |
359 | return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
360 | &dai->driver->playback : &dai->driver->capture; | |
361 | } | |
362 | ||
0c01f6ca KM |
363 | static inline |
364 | struct snd_soc_dapm_widget *snd_soc_dai_get_widget( | |
365 | struct snd_soc_dai *dai, int stream) | |
366 | { | |
367 | return (stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
368 | dai->playback_widget : dai->capture_widget; | |
369 | } | |
370 | ||
fd23b7de DM |
371 | static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai, |
372 | const struct snd_pcm_substream *ss) | |
373 | { | |
374 | return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ? | |
f0fba2ad | 375 | dai->playback_dma_data : dai->capture_dma_data; |
fd23b7de DM |
376 | } |
377 | ||
378 | static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai, | |
379 | const struct snd_pcm_substream *ss, | |
380 | void *data) | |
381 | { | |
382 | if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
f0fba2ad | 383 | dai->playback_dma_data = data; |
fd23b7de | 384 | else |
f0fba2ad LG |
385 | dai->capture_dma_data = data; |
386 | } | |
387 | ||
ecfc0c04 MB |
388 | static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai, |
389 | void *playback, void *capture) | |
390 | { | |
391 | dai->playback_dma_data = playback; | |
392 | dai->capture_dma_data = capture; | |
393 | } | |
394 | ||
f0fba2ad LG |
395 | static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai, |
396 | void *data) | |
397 | { | |
398 | dev_set_drvdata(dai->dev, data); | |
399 | } | |
400 | ||
401 | static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai) | |
402 | { | |
403 | return dev_get_drvdata(dai->dev); | |
fd23b7de DM |
404 | } |
405 | ||
97349b60 SN |
406 | /** |
407 | * snd_soc_dai_set_sdw_stream() - Configures a DAI for SDW stream operation | |
408 | * @dai: DAI | |
409 | * @stream: STREAM | |
410 | * @direction: Stream direction(Playback/Capture) | |
411 | * SoundWire subsystem doesn't have a notion of direction and we reuse | |
412 | * the ASoC stream direction to configure sink/source ports. | |
413 | * Playback maps to source ports and Capture for sink ports. | |
414 | * | |
415 | * This should be invoked with NULL to clear the stream set previously. | |
416 | * Returns 0 on success, a negative error code otherwise. | |
417 | */ | |
418 | static inline int snd_soc_dai_set_sdw_stream(struct snd_soc_dai *dai, | |
419 | void *stream, int direction) | |
420 | { | |
421 | if (dai->driver->ops->set_sdw_stream) | |
422 | return dai->driver->ops->set_sdw_stream(dai, stream, direction); | |
423 | else | |
424 | return -ENOTSUPP; | |
425 | } | |
426 | ||
36d73c4a PLB |
427 | /** |
428 | * snd_soc_dai_get_sdw_stream() - Retrieves SDW stream from DAI | |
429 | * @dai: DAI | |
430 | * @direction: Stream direction(Playback/Capture) | |
431 | * | |
432 | * This routine only retrieves that was previously configured | |
433 | * with snd_soc_dai_get_sdw_stream() | |
434 | * | |
308811a3 | 435 | * Returns pointer to stream or -ENOTSUPP if callback is not supported; |
36d73c4a PLB |
436 | */ |
437 | static inline void *snd_soc_dai_get_sdw_stream(struct snd_soc_dai *dai, | |
438 | int direction) | |
439 | { | |
440 | if (dai->driver->ops->get_sdw_stream) | |
441 | return dai->driver->ops->get_sdw_stream(dai, direction); | |
442 | else | |
308811a3 | 443 | return ERR_PTR(-ENOTSUPP); |
36d73c4a PLB |
444 | } |
445 | ||
a47cbe72 | 446 | #endif |