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/notifier.h>
19 #include <linux/workqueue.h>
20 #include <linux/interrupt.h>
21 #include <linux/kernel.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/control.h>
25 #include <sound/ac97_codec.h>
28 * Convenience kcontrol builders
30 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
31 ((unsigned long)&(struct soc_mixer_control) \
32 {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \
34 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
35 ((unsigned long)&(struct soc_mixer_control) \
36 {.reg = xreg, .max = xmax, .invert = xinvert})
37 #define SOC_SINGLE(xname, reg, shift, max, invert) \
38 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
39 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
40 .put = snd_soc_put_volsw, \
41 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
42 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
43 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
44 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
45 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
46 .tlv.p = (tlv_array), \
47 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
48 .put = snd_soc_put_volsw, \
49 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
50 #define SOC_DOUBLE(xname, xreg, shift_left, shift_right, xmax, xinvert) \
51 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
52 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
53 .put = snd_soc_put_volsw, \
54 .private_value = (unsigned long)&(struct soc_mixer_control) \
55 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
56 .max = xmax, .invert = xinvert} }
57 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
58 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
59 .info = snd_soc_info_volsw_2r, \
60 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
61 .private_value = (unsigned long)&(struct soc_mixer_control) \
62 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
63 .max = xmax, .invert = xinvert} }
64 #define SOC_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert, tlv_array) \
65 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
66 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
67 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
68 .tlv.p = (tlv_array), \
69 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
70 .put = snd_soc_put_volsw, \
71 .private_value = (unsigned long)&(struct soc_mixer_control) \
72 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
73 .max = xmax, .invert = xinvert} }
74 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
75 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
76 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
77 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
78 .tlv.p = (tlv_array), \
79 .info = snd_soc_info_volsw_2r, \
80 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
81 .private_value = (unsigned long)&(struct soc_mixer_control) \
82 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
83 .max = xmax, .invert = xinvert} }
84 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
85 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
86 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
87 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
88 .tlv.p = (tlv_array), \
89 .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
90 .put = snd_soc_put_volsw_s8, \
91 .private_value = (unsigned long)&(struct soc_mixer_control) \
92 {.reg = xreg, .min = xmin, .max = xmax} }
93 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
94 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
95 .max = xmax, .texts = xtexts }
96 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
97 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
98 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
99 { .max = xmax, .texts = xtexts }
100 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
101 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
102 .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
103 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
104 SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
105 #define SOC_ENUM(xname, xenum) \
106 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
107 .info = snd_soc_info_enum_double, \
108 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
109 .private_value = (unsigned long)&xenum }
110 #define SOC_VALUE_ENUM(xname, xenum) \
111 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
112 .info = snd_soc_info_enum_double, \
113 .get = snd_soc_get_value_enum_double, \
114 .put = snd_soc_put_value_enum_double, \
115 .private_value = (unsigned long)&xenum }
116 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
117 xhandler_get, xhandler_put) \
118 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
119 .info = snd_soc_info_volsw, \
120 .get = xhandler_get, .put = xhandler_put, \
121 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
122 #define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\
123 xhandler_get, xhandler_put) \
124 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
125 .info = snd_soc_info_volsw, \
126 .get = xhandler_get, .put = xhandler_put, \
127 .private_value = (unsigned long)&(struct soc_mixer_control) \
128 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
129 .max = xmax, .invert = xinvert} }
130 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
131 xhandler_get, xhandler_put, tlv_array) \
132 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
133 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
134 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
135 .tlv.p = (tlv_array), \
136 .info = snd_soc_info_volsw, \
137 .get = xhandler_get, .put = xhandler_put, \
138 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
139 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
140 xhandler_get, xhandler_put, tlv_array) \
141 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
142 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
143 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
144 .tlv.p = (tlv_array), \
145 .info = snd_soc_info_volsw, \
146 .get = xhandler_get, .put = xhandler_put, \
147 .private_value = (unsigned long)&(struct soc_mixer_control) \
148 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
149 .max = xmax, .invert = xinvert} }
150 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
151 xhandler_get, xhandler_put, tlv_array) \
152 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
153 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
154 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
155 .tlv.p = (tlv_array), \
156 .info = snd_soc_info_volsw_2r, \
157 .get = xhandler_get, .put = xhandler_put, \
158 .private_value = (unsigned long)&(struct soc_mixer_control) \
159 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
160 .max = xmax, .invert = xinvert} }
161 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
162 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
163 .info = snd_soc_info_bool_ext, \
164 .get = xhandler_get, .put = xhandler_put, \
165 .private_value = xdata }
166 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
167 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
168 .info = snd_soc_info_enum_ext, \
169 .get = xhandler_get, .put = xhandler_put, \
170 .private_value = (unsigned long)&xenum }
173 * Simplified versions of above macros, declaring a struct and calculating
174 * ARRAY_SIZE internally
176 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
177 struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
178 ARRAY_SIZE(xtexts), xtexts)
179 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
180 SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
181 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
182 struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
183 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
184 struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
185 ARRAY_SIZE(xtexts), xtexts, xvalues)
186 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
187 SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
192 * @ON: Bias is fully on for audio playback and capture operations.
193 * @PREPARE: Prepare for audio operations. Called before DAPM switching for
194 * stream start and stop operations.
195 * @STANDBY: Low power standby state when no playback/capture operations are
196 * in progress. NOTE: The transition time between STANDBY and ON
197 * should be as fast as possible and no longer than 10ms.
198 * @OFF: Power Off. No restrictions on transition times.
200 enum snd_soc_bias_level {
202 SND_SOC_BIAS_PREPARE,
203 SND_SOC_BIAS_STANDBY,
209 struct snd_soc_device;
210 struct snd_soc_pcm_stream;
212 struct snd_soc_dai_mode;
213 struct snd_soc_pcm_runtime;
215 struct snd_soc_platform;
216 struct snd_soc_dai_link;
217 struct snd_soc_codec;
219 struct snd_soc_ac97_ops;
221 struct snd_soc_jack_pin;
222 #ifdef CONFIG_GPIOLIB
223 struct snd_soc_jack_gpio;
226 typedef int (*hw_write_t)(void *,const char* ,int);
228 extern struct snd_ac97_bus_ops soc_ac97_ops;
230 enum snd_soc_control_type {
236 int snd_soc_register_platform(struct snd_soc_platform *platform);
237 void snd_soc_unregister_platform(struct snd_soc_platform *platform);
238 int snd_soc_register_codec(struct snd_soc_codec *codec);
239 void snd_soc_unregister_codec(struct snd_soc_codec *codec);
240 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg);
241 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
242 int addr_bits, int data_bits,
243 enum snd_soc_control_type control);
245 /* pcm <-> DAI connect */
246 void snd_soc_free_pcms(struct snd_soc_device *socdev);
247 int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
249 /* Utility functions to get clock rates from various things */
250 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
251 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
252 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
253 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
255 /* set runtime hw params */
256 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
257 const struct snd_pcm_hardware *hw);
260 int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
261 struct snd_soc_jack *jack);
262 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
263 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
264 struct snd_soc_jack_pin *pins);
265 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
266 struct notifier_block *nb);
267 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
268 struct notifier_block *nb);
269 #ifdef CONFIG_GPIOLIB
270 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
271 struct snd_soc_jack_gpio *gpios);
272 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
273 struct snd_soc_jack_gpio *gpios);
276 /* codec register bit access */
277 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
278 unsigned int mask, unsigned int value);
279 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
280 unsigned short reg, unsigned int mask,
282 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
283 unsigned int mask, unsigned int value);
285 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
286 struct snd_ac97_bus_ops *ops, int num);
287 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
292 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
293 void *data, char *long_name);
294 int snd_soc_add_controls(struct snd_soc_codec *codec,
295 const struct snd_kcontrol_new *controls, int num_controls);
296 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
297 struct snd_ctl_elem_info *uinfo);
298 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
299 struct snd_ctl_elem_info *uinfo);
300 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
301 struct snd_ctl_elem_value *ucontrol);
302 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
303 struct snd_ctl_elem_value *ucontrol);
304 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
305 struct snd_ctl_elem_value *ucontrol);
306 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
307 struct snd_ctl_elem_value *ucontrol);
308 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
309 struct snd_ctl_elem_info *uinfo);
310 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
311 struct snd_ctl_elem_info *uinfo);
312 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info
313 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
314 struct snd_ctl_elem_value *ucontrol);
315 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
316 struct snd_ctl_elem_value *ucontrol);
317 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
318 struct snd_ctl_elem_info *uinfo);
319 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
320 struct snd_ctl_elem_value *ucontrol);
321 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
322 struct snd_ctl_elem_value *ucontrol);
323 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
324 struct snd_ctl_elem_info *uinfo);
325 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
326 struct snd_ctl_elem_value *ucontrol);
327 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
328 struct snd_ctl_elem_value *ucontrol);
329 int snd_soc_limit_volume(struct snd_soc_codec *codec,
330 const char *name, int max);
333 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
335 * @pin: name of the pin to update
336 * @mask: bits to check for in reported jack status
337 * @invert: if non-zero then pin is enabled when status is not reported
339 struct snd_soc_jack_pin {
340 struct list_head list;
347 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
351 * @report: value to report when jack detected
352 * @invert: report presence in low state
353 * @debouce_time: debouce time in ms
355 #ifdef CONFIG_GPIOLIB
356 struct snd_soc_jack_gpio {
362 struct snd_soc_jack *jack;
363 struct work_struct work;
365 int (*jack_status_check)(void);
369 struct snd_soc_jack {
370 struct snd_jack *jack;
371 struct snd_soc_card *card;
372 struct list_head pins;
374 struct blocking_notifier_head notifier;
377 /* SoC PCM stream information */
378 struct snd_soc_pcm_stream {
380 u64 formats; /* SNDRV_PCM_FMTBIT_* */
381 unsigned int rates; /* SNDRV_PCM_RATE_* */
382 unsigned int rate_min; /* min rate */
383 unsigned int rate_max; /* max rate */
384 unsigned int channels_min; /* min channels */
385 unsigned int channels_max; /* max channels */
386 unsigned int active; /* stream is in use */
387 void *dma_data; /* used by platform code */
392 int (*startup)(struct snd_pcm_substream *);
393 void (*shutdown)(struct snd_pcm_substream *);
394 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
395 int (*hw_free)(struct snd_pcm_substream *);
396 int (*prepare)(struct snd_pcm_substream *);
397 int (*trigger)(struct snd_pcm_substream *, int);
400 /* SoC Audio Codec */
401 struct snd_soc_codec {
403 struct module *owner;
406 struct snd_soc_device *socdev;
408 struct list_head list;
411 int (*set_bias_level)(struct snd_soc_codec *,
412 enum snd_soc_bias_level level);
415 struct snd_card *card;
416 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
418 unsigned int pcm_devs;
422 void *control_data; /* codec control (i2c/3wire) data */
423 unsigned int (*read)(struct snd_soc_codec *, unsigned int);
424 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
425 int (*display_register)(struct snd_soc_codec *, char *,
426 size_t, unsigned int);
427 int (*volatile_register)(unsigned int);
428 int (*readable_register)(unsigned int);
430 unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
432 short reg_cache_size;
433 short reg_cache_step;
435 unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */
436 unsigned int cache_only:1; /* Suppress writes to hardware */
437 unsigned int cache_sync:1; /* Cache needs to be synced to hardware */
441 struct list_head dapm_widgets;
442 struct list_head dapm_paths;
443 enum snd_soc_bias_level bias_level;
444 enum snd_soc_bias_level suspend_bias_level;
445 struct delayed_work delayed_work;
448 struct snd_soc_dai *dai;
449 unsigned int num_dai;
451 #ifdef CONFIG_DEBUG_FS
452 struct dentry *debugfs_codec_root;
453 struct dentry *debugfs_reg;
454 struct dentry *debugfs_pop_time;
455 struct dentry *debugfs_dapm;
460 struct snd_soc_codec_device {
461 int (*probe)(struct platform_device *pdev);
462 int (*remove)(struct platform_device *pdev);
463 int (*suspend)(struct platform_device *pdev, pm_message_t state);
464 int (*resume)(struct platform_device *pdev);
467 /* SoC platform interface */
468 struct snd_soc_platform {
470 struct list_head list;
472 int (*probe)(struct platform_device *pdev);
473 int (*remove)(struct platform_device *pdev);
474 int (*suspend)(struct snd_soc_dai_link *dai_link);
475 int (*resume)(struct snd_soc_dai_link *dai_link);
477 /* pcm creation and destruction */
478 int (*pcm_new)(struct snd_card *, struct snd_soc_dai *,
480 void (*pcm_free)(struct snd_pcm *);
483 * For platform caused delay reporting.
486 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
487 struct snd_soc_dai *);
489 /* platform stream ops */
490 struct snd_pcm_ops *pcm_ops;
493 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
494 struct snd_soc_dai_link {
495 char *name; /* Codec name */
496 char *stream_name; /* Stream name */
499 struct snd_soc_dai *codec_dai;
500 struct snd_soc_dai *cpu_dai;
502 /* machine stream operations */
503 struct snd_soc_ops *ops;
505 /* codec/machine specific init - e.g. add machine controls */
506 int (*init)(struct snd_soc_codec *codec);
508 /* Symmetry requirements */
509 unsigned int symmetric_rates:1;
511 /* Symmetry data - only valid if symmetry is being enforced */
519 struct snd_soc_card {
523 struct list_head list;
527 int (*probe)(struct platform_device *pdev);
528 int (*remove)(struct platform_device *pdev);
530 /* the pre and post PM functions are used to do any PM work before and
531 * after the codec and DAI's do any PM work. */
532 int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
533 int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
534 int (*resume_pre)(struct platform_device *pdev);
535 int (*resume_post)(struct platform_device *pdev);
538 int (*set_bias_level)(struct snd_soc_card *,
539 enum snd_soc_bias_level level);
543 /* CPU <--> Codec DAI links */
544 struct snd_soc_dai_link *dai_link;
547 struct snd_soc_device *socdev;
549 struct snd_soc_codec *codec;
551 struct snd_soc_platform *platform;
552 struct delayed_work delayed_work;
553 struct work_struct deferred_resume_work;
556 /* SoC Device - the audio subsystem */
557 struct snd_soc_device {
559 struct snd_soc_card *card;
560 struct snd_soc_codec_device *codec_dev;
564 /* runtime channel data */
565 struct snd_soc_pcm_runtime {
566 struct snd_soc_dai_link *dai;
567 struct snd_soc_device *socdev;
571 struct soc_mixer_control {
573 unsigned int reg, rreg, shift, rshift, invert;
576 /* enumerated kcontrol */
580 unsigned char shift_l;
581 unsigned char shift_r;
585 const unsigned int *values;
590 static inline unsigned int snd_soc_read(struct snd_soc_codec *codec,
593 return codec->read(codec, reg);
596 static inline unsigned int snd_soc_write(struct snd_soc_codec *codec,
597 unsigned int reg, unsigned int val)
599 return codec->write(codec, reg, val);
602 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
605 codec->drvdata = data;
608 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
610 return codec->drvdata;
613 #include <sound/soc-dai.h>