2 * linux/sound/soc.h -- ALSA SoC Layer
4 * Author: Liam Girdwood
5 * Created: Aug 11th 2005
6 * Copyright: Wolfson Microelectronics. PLC.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #ifndef __LINUX_SND_SOC_H
14 #define __LINUX_SND_SOC_H
16 #include <linux/platform_device.h>
17 #include <linux/types.h>
18 #include <linux/workqueue.h>
19 #include <linux/interrupt.h>
20 #include <linux/kernel.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/control.h>
24 #include <sound/ac97_codec.h>
27 * Convenience kcontrol builders
29 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
30 ((unsigned long)&(struct soc_mixer_control) \
31 {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \
33 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
34 ((unsigned long)&(struct soc_mixer_control) \
35 {.reg = xreg, .max = xmax, .invert = xinvert})
36 #define SOC_SINGLE(xname, reg, shift, max, invert) \
37 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
38 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
39 .put = snd_soc_put_volsw, \
40 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
41 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
42 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
43 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
44 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
45 .tlv.p = (tlv_array), \
46 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
47 .put = snd_soc_put_volsw, \
48 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
49 #define SOC_DOUBLE(xname, xreg, shift_left, shift_right, xmax, xinvert) \
50 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
51 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
52 .put = snd_soc_put_volsw, \
53 .private_value = (unsigned long)&(struct soc_mixer_control) \
54 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
55 .max = xmax, .invert = xinvert} }
56 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
57 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
58 .info = snd_soc_info_volsw_2r, \
59 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
60 .private_value = (unsigned long)&(struct soc_mixer_control) \
61 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
62 .max = xmax, .invert = xinvert} }
63 #define SOC_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert, tlv_array) \
64 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
65 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
66 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
67 .tlv.p = (tlv_array), \
68 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
69 .put = snd_soc_put_volsw, \
70 .private_value = (unsigned long)&(struct soc_mixer_control) \
71 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
72 .max = xmax, .invert = xinvert} }
73 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
74 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
75 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
76 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
77 .tlv.p = (tlv_array), \
78 .info = snd_soc_info_volsw_2r, \
79 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
80 .private_value = (unsigned long)&(struct soc_mixer_control) \
81 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
82 .max = xmax, .invert = xinvert} }
83 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
84 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
85 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
86 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
87 .tlv.p = (tlv_array), \
88 .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
89 .put = snd_soc_put_volsw_s8, \
90 .private_value = (unsigned long)&(struct soc_mixer_control) \
91 {.reg = xreg, .min = xmin, .max = xmax} }
92 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
93 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
94 .max = xmax, .texts = xtexts }
95 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
96 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
97 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
98 { .max = xmax, .texts = xtexts }
99 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
100 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
101 .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
102 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
103 SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
104 #define SOC_ENUM(xname, xenum) \
105 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
106 .info = snd_soc_info_enum_double, \
107 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
108 .private_value = (unsigned long)&xenum }
109 #define SOC_VALUE_ENUM(xname, xenum) \
110 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
111 .info = snd_soc_info_enum_double, \
112 .get = snd_soc_get_value_enum_double, \
113 .put = snd_soc_put_value_enum_double, \
114 .private_value = (unsigned long)&xenum }
115 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
116 xhandler_get, xhandler_put) \
117 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
118 .info = snd_soc_info_volsw, \
119 .get = xhandler_get, .put = xhandler_put, \
120 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
121 #define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\
122 xhandler_get, xhandler_put) \
123 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
124 .info = snd_soc_info_volsw, \
125 .get = xhandler_get, .put = xhandler_put, \
126 .private_value = (unsigned long)&(struct soc_mixer_control) \
127 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
128 .max = xmax, .invert = xinvert} }
129 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
130 xhandler_get, xhandler_put, tlv_array) \
131 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
132 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
133 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
134 .tlv.p = (tlv_array), \
135 .info = snd_soc_info_volsw, \
136 .get = xhandler_get, .put = xhandler_put, \
137 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
138 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
139 xhandler_get, xhandler_put, tlv_array) \
140 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
141 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
142 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
143 .tlv.p = (tlv_array), \
144 .info = snd_soc_info_volsw, \
145 .get = xhandler_get, .put = xhandler_put, \
146 .private_value = (unsigned long)&(struct soc_mixer_control) \
147 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
148 .max = xmax, .invert = xinvert} }
149 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
150 xhandler_get, xhandler_put, tlv_array) \
151 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
152 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
153 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
154 .tlv.p = (tlv_array), \
155 .info = snd_soc_info_volsw_2r, \
156 .get = xhandler_get, .put = xhandler_put, \
157 .private_value = (unsigned long)&(struct soc_mixer_control) \
158 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
159 .max = xmax, .invert = xinvert} }
160 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
161 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
162 .info = snd_soc_info_bool_ext, \
163 .get = xhandler_get, .put = xhandler_put, \
164 .private_value = xdata }
165 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
166 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
167 .info = snd_soc_info_enum_ext, \
168 .get = xhandler_get, .put = xhandler_put, \
169 .private_value = (unsigned long)&xenum }
172 * Simplified versions of above macros, declaring a struct and calculating
173 * ARRAY_SIZE internally
175 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
176 struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
177 ARRAY_SIZE(xtexts), xtexts)
178 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
179 SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
180 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
181 struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
182 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
183 struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
184 ARRAY_SIZE(xtexts), xtexts, xvalues)
185 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
186 SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
191 * @ON: Bias is fully on for audio playback and capture operations.
192 * @PREPARE: Prepare for audio operations. Called before DAPM switching for
193 * stream start and stop operations.
194 * @STANDBY: Low power standby state when no playback/capture operations are
195 * in progress. NOTE: The transition time between STANDBY and ON
196 * should be as fast as possible and no longer than 10ms.
197 * @OFF: Power Off. No restrictions on transition times.
199 enum snd_soc_bias_level {
201 SND_SOC_BIAS_PREPARE,
202 SND_SOC_BIAS_STANDBY,
208 struct snd_soc_device;
209 struct snd_soc_pcm_stream;
211 struct snd_soc_dai_mode;
212 struct snd_soc_pcm_runtime;
214 struct snd_soc_platform;
215 struct snd_soc_dai_link;
216 struct snd_soc_codec;
218 struct snd_soc_ac97_ops;
220 struct snd_soc_jack_pin;
221 #ifdef CONFIG_GPIOLIB
222 struct snd_soc_jack_gpio;
225 typedef int (*hw_write_t)(void *,const char* ,int);
227 extern struct snd_ac97_bus_ops soc_ac97_ops;
229 enum snd_soc_control_type {
235 int snd_soc_register_platform(struct snd_soc_platform *platform);
236 void snd_soc_unregister_platform(struct snd_soc_platform *platform);
237 int snd_soc_register_codec(struct snd_soc_codec *codec);
238 void snd_soc_unregister_codec(struct snd_soc_codec *codec);
239 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg);
240 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
241 int addr_bits, int data_bits,
242 enum snd_soc_control_type control);
244 /* pcm <-> DAI connect */
245 void snd_soc_free_pcms(struct snd_soc_device *socdev);
246 int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
248 /* Utility functions to get clock rates from various things */
249 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
250 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
251 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
252 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
254 /* set runtime hw params */
255 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
256 const struct snd_pcm_hardware *hw);
259 int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
260 struct snd_soc_jack *jack);
261 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
262 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
263 struct snd_soc_jack_pin *pins);
264 #ifdef CONFIG_GPIOLIB
265 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
266 struct snd_soc_jack_gpio *gpios);
267 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
268 struct snd_soc_jack_gpio *gpios);
271 /* codec register bit access */
272 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
273 unsigned int mask, unsigned int value);
274 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
275 unsigned short reg, unsigned int mask,
277 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
278 unsigned int mask, unsigned int value);
280 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
281 struct snd_ac97_bus_ops *ops, int num);
282 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
287 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
288 void *data, char *long_name);
289 int snd_soc_add_controls(struct snd_soc_codec *codec,
290 const struct snd_kcontrol_new *controls, int num_controls);
291 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
292 struct snd_ctl_elem_info *uinfo);
293 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
294 struct snd_ctl_elem_info *uinfo);
295 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
296 struct snd_ctl_elem_value *ucontrol);
297 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
298 struct snd_ctl_elem_value *ucontrol);
299 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
300 struct snd_ctl_elem_value *ucontrol);
301 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
302 struct snd_ctl_elem_value *ucontrol);
303 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
304 struct snd_ctl_elem_info *uinfo);
305 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
306 struct snd_ctl_elem_info *uinfo);
307 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info
308 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
309 struct snd_ctl_elem_value *ucontrol);
310 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
311 struct snd_ctl_elem_value *ucontrol);
312 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
313 struct snd_ctl_elem_info *uinfo);
314 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
315 struct snd_ctl_elem_value *ucontrol);
316 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
317 struct snd_ctl_elem_value *ucontrol);
318 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
319 struct snd_ctl_elem_info *uinfo);
320 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
321 struct snd_ctl_elem_value *ucontrol);
322 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
323 struct snd_ctl_elem_value *ucontrol);
326 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
328 * @pin: name of the pin to update
329 * @mask: bits to check for in reported jack status
330 * @invert: if non-zero then pin is enabled when status is not reported
332 struct snd_soc_jack_pin {
333 struct list_head list;
340 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
344 * @report: value to report when jack detected
345 * @invert: report presence in low state
346 * @debouce_time: debouce time in ms
348 #ifdef CONFIG_GPIOLIB
349 struct snd_soc_jack_gpio {
355 struct snd_soc_jack *jack;
356 struct work_struct work;
358 int (*jack_status_check)(void);
362 struct snd_soc_jack {
363 struct snd_jack *jack;
364 struct snd_soc_card *card;
365 struct list_head pins;
369 /* SoC PCM stream information */
370 struct snd_soc_pcm_stream {
372 u64 formats; /* SNDRV_PCM_FMTBIT_* */
373 unsigned int rates; /* SNDRV_PCM_RATE_* */
374 unsigned int rate_min; /* min rate */
375 unsigned int rate_max; /* max rate */
376 unsigned int channels_min; /* min channels */
377 unsigned int channels_max; /* max channels */
378 unsigned int active; /* num of active users of the stream */
383 int (*startup)(struct snd_pcm_substream *);
384 void (*shutdown)(struct snd_pcm_substream *);
385 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
386 int (*hw_free)(struct snd_pcm_substream *);
387 int (*prepare)(struct snd_pcm_substream *);
388 int (*trigger)(struct snd_pcm_substream *, int);
391 /* SoC Audio Codec */
392 struct snd_soc_codec {
394 struct module *owner;
397 struct snd_soc_device *socdev;
399 struct list_head list;
402 int (*set_bias_level)(struct snd_soc_codec *,
403 enum snd_soc_bias_level level);
406 struct snd_card *card;
407 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
409 unsigned int pcm_devs;
413 void *control_data; /* codec control (i2c/3wire) data */
414 unsigned int (*read)(struct snd_soc_codec *, unsigned int);
415 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
416 int (*display_register)(struct snd_soc_codec *, char *,
417 size_t, unsigned int);
418 int (*volatile_register)(unsigned int);
419 int (*readable_register)(unsigned int);
421 unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
423 short reg_cache_size;
424 short reg_cache_step;
426 unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
427 unsigned int cache_only:1; /* Suppress writes to hardware */
428 unsigned int cache_sync:1; /* Cache needs to be synced to hardware */
432 struct list_head dapm_widgets;
433 struct list_head dapm_paths;
434 enum snd_soc_bias_level bias_level;
435 enum snd_soc_bias_level suspend_bias_level;
436 struct delayed_work delayed_work;
439 struct snd_soc_dai *dai;
440 unsigned int num_dai;
442 #ifdef CONFIG_DEBUG_FS
443 struct dentry *debugfs_codec_root;
444 struct dentry *debugfs_reg;
445 struct dentry *debugfs_pop_time;
446 struct dentry *debugfs_dapm;
451 struct snd_soc_codec_device {
452 int (*probe)(struct platform_device *pdev);
453 int (*remove)(struct platform_device *pdev);
454 int (*suspend)(struct platform_device *pdev, pm_message_t state);
455 int (*resume)(struct platform_device *pdev);
458 /* SoC platform interface */
459 struct snd_soc_platform {
461 struct list_head list;
463 int (*probe)(struct platform_device *pdev);
464 int (*remove)(struct platform_device *pdev);
465 int (*suspend)(struct snd_soc_dai_link *dai_link);
466 int (*resume)(struct snd_soc_dai_link *dai_link);
468 /* pcm creation and destruction */
469 int (*pcm_new)(struct snd_card *, struct snd_soc_dai *,
471 void (*pcm_free)(struct snd_pcm *);
474 * For platform caused delay reporting.
477 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
478 struct snd_soc_dai *);
480 /* platform stream ops */
481 struct snd_pcm_ops *pcm_ops;
484 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
485 struct snd_soc_dai_link {
486 char *name; /* Codec name */
487 char *stream_name; /* Stream name */
490 struct snd_soc_dai *codec_dai;
491 struct snd_soc_dai *cpu_dai;
493 /* machine stream operations */
494 struct snd_soc_ops *ops;
496 /* codec/machine specific init - e.g. add machine controls */
497 int (*init)(struct snd_soc_codec *codec);
499 /* Symmetry requirements */
500 unsigned int symmetric_rates:1;
502 /* Symmetry data - only valid if symmetry is being enforced */
510 struct snd_soc_card {
514 struct list_head list;
518 int (*probe)(struct platform_device *pdev);
519 int (*remove)(struct platform_device *pdev);
521 /* the pre and post PM functions are used to do any PM work before and
522 * after the codec and DAI's do any PM work. */
523 int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
524 int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
525 int (*resume_pre)(struct platform_device *pdev);
526 int (*resume_post)(struct platform_device *pdev);
529 int (*set_bias_level)(struct snd_soc_card *,
530 enum snd_soc_bias_level level);
534 /* CPU <--> Codec DAI links */
535 struct snd_soc_dai_link *dai_link;
538 struct snd_soc_device *socdev;
540 struct snd_soc_codec *codec;
542 struct snd_soc_platform *platform;
543 struct delayed_work delayed_work;
544 struct work_struct deferred_resume_work;
547 /* SoC Device - the audio subsystem */
548 struct snd_soc_device {
550 struct snd_soc_card *card;
551 struct snd_soc_codec_device *codec_dev;
555 /* runtime channel data */
556 struct snd_soc_pcm_runtime {
557 struct snd_soc_dai_link *dai;
558 struct snd_soc_device *socdev;
562 struct soc_mixer_control {
564 unsigned int reg, rreg, shift, rshift, invert;
567 /* enumerated kcontrol */
571 unsigned char shift_l;
572 unsigned char shift_r;
576 const unsigned int *values;
581 static inline unsigned int snd_soc_read(struct snd_soc_codec *codec,
584 return codec->read(codec, reg);
587 static inline unsigned int snd_soc_write(struct snd_soc_codec *codec,
588 unsigned int reg, unsigned int val)
590 return codec->write(codec, reg, val);
593 #include <sound/soc-dai.h>