Merge branch 'for-2.6.29' into for-2.6.30
[deliverable/linux.git] / include / sound / soc.h
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1/*
2 * linux/sound/soc.h -- ALSA SoC Layer
3 *
4 * Author: Liam Girdwood
5 * Created: Aug 11th 2005
6 * Copyright: Wolfson Microelectronics. PLC.
7 *
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.
11 */
12
13#ifndef __LINUX_SND_SOC_H
14#define __LINUX_SND_SOC_H
15
16#include <linux/platform_device.h>
17#include <linux/types.h>
4484bb2e 18#include <linux/workqueue.h>
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19#include <sound/core.h>
20#include <sound/pcm.h>
21#include <sound/control.h>
22#include <sound/ac97_codec.h>
23
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24/*
25 * Convenience kcontrol builders
26 */
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27#define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \
28 ((unsigned long)&(struct soc_mixer_control) \
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29 {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \
30 .invert = xinvert})
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31#define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
32 ((unsigned long)&(struct soc_mixer_control) \
33 {.reg = xreg, .max = xmax, .invert = xinvert})
a7a4ac86 34#define SOC_SINGLE(xname, reg, shift, max, invert) \
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35{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
36 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
37 .put = snd_soc_put_volsw, \
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38 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
39#define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
40{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
41 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
42 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
43 .tlv.p = (tlv_array), \
44 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
45 .put = snd_soc_put_volsw, \
46 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
4eaa9819 47#define SOC_DOUBLE(xname, xreg, shift_left, shift_right, xmax, xinvert) \
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48{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
49 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
50 .put = snd_soc_put_volsw, \
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51 .private_value = (unsigned long)&(struct soc_mixer_control) \
52 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
53 .max = xmax, .invert = xinvert} }
54#define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
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55{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
56 .info = snd_soc_info_volsw_2r, \
57 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
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58 .private_value = (unsigned long)&(struct soc_mixer_control) \
59 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
60 .max = xmax, .invert = xinvert} }
61#define SOC_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert, tlv_array) \
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62{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
63 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
64 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
65 .tlv.p = (tlv_array), \
66 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
67 .put = snd_soc_put_volsw, \
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68 .private_value = (unsigned long)&(struct soc_mixer_control) \
69 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
70 .max = xmax, .invert = xinvert} }
71#define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \
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72{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
73 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
74 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
75 .tlv.p = (tlv_array), \
76 .info = snd_soc_info_volsw_2r, \
77 .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \
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78 .private_value = (unsigned long)&(struct soc_mixer_control) \
79 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
80 .max = xmax, .invert = xinvert} }
81#define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
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82{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
83 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
84 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
85 .tlv.p = (tlv_array), \
86 .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \
87 .put = snd_soc_put_volsw_s8, \
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88 .private_value = (unsigned long)&(struct soc_mixer_control) \
89 {.reg = xreg, .min = xmin, .max = xmax} }
f8ba0b7b 90#define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
808db4a4 91{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
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92 .max = xmax, .texts = xtexts }
93#define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
94 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
95#define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
96{ .max = xmax, .texts = xtexts }
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97#define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
98{ .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
99 .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
100#define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
101 SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
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102#define SOC_ENUM(xname, xenum) \
103{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
104 .info = snd_soc_info_enum_double, \
105 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
106 .private_value = (unsigned long)&xenum }
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107#define SOC_VALUE_ENUM(xname, xenum) \
108{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
74155556 109 .info = snd_soc_info_enum_double, \
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110 .get = snd_soc_get_value_enum_double, \
111 .put = snd_soc_put_value_enum_double, \
112 .private_value = (unsigned long)&xenum }
f8ba0b7b 113#define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
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114 xhandler_get, xhandler_put) \
115{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
1c433fbd 116 .info = snd_soc_info_volsw, \
808db4a4 117 .get = xhandler_get, .put = xhandler_put, \
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118 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
119#define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
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120 xhandler_get, xhandler_put, tlv_array) \
121{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
122 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
123 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
124 .tlv.p = (tlv_array), \
125 .info = snd_soc_info_volsw, \
126 .get = xhandler_get, .put = xhandler_put, \
f8ba0b7b 127 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
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128#define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
129{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
130 .info = snd_soc_info_bool_ext, \
131 .get = xhandler_get, .put = xhandler_put, \
132 .private_value = xdata }
133#define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
134{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
135 .info = snd_soc_info_enum_ext, \
136 .get = xhandler_get, .put = xhandler_put, \
137 .private_value = (unsigned long)&xenum }
138
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139/*
140 * Bias levels
141 *
142 * @ON: Bias is fully on for audio playback and capture operations.
143 * @PREPARE: Prepare for audio operations. Called before DAPM switching for
144 * stream start and stop operations.
145 * @STANDBY: Low power standby state when no playback/capture operations are
146 * in progress. NOTE: The transition time between STANDBY and ON
147 * should be as fast as possible and no longer than 10ms.
148 * @OFF: Power Off. No restrictions on transition times.
149 */
150enum snd_soc_bias_level {
151 SND_SOC_BIAS_ON,
152 SND_SOC_BIAS_PREPARE,
153 SND_SOC_BIAS_STANDBY,
154 SND_SOC_BIAS_OFF,
155};
156
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157struct snd_jack;
158struct snd_soc_card;
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159struct snd_soc_device;
160struct snd_soc_pcm_stream;
161struct snd_soc_ops;
162struct snd_soc_dai_mode;
163struct snd_soc_pcm_runtime;
3c4b266f 164struct snd_soc_dai;
12a48a8c 165struct snd_soc_platform;
808db4a4 166struct snd_soc_codec;
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167struct soc_enum;
168struct snd_soc_ac97_ops;
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169struct snd_soc_jack;
170struct snd_soc_jack_pin;
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171
172typedef int (*hw_write_t)(void *,const char* ,int);
173typedef int (*hw_read_t)(void *,char* ,int);
174
175extern struct snd_ac97_bus_ops soc_ac97_ops;
176
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177int snd_soc_register_platform(struct snd_soc_platform *platform);
178void snd_soc_unregister_platform(struct snd_soc_platform *platform);
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179int snd_soc_register_codec(struct snd_soc_codec *codec);
180void snd_soc_unregister_codec(struct snd_soc_codec *codec);
12a48a8c 181
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182/* pcm <-> DAI connect */
183void snd_soc_free_pcms(struct snd_soc_device *socdev);
184int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
968a6025 185int snd_soc_init_card(struct snd_soc_device *socdev);
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186
187/* set runtime hw params */
188int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
189 const struct snd_pcm_hardware *hw);
808db4a4 190
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191/* Jack reporting */
192int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type,
193 struct snd_soc_jack *jack);
194void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
195int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
196 struct snd_soc_jack_pin *pins);
197
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198/* codec IO */
199#define snd_soc_read(codec, reg) codec->read(codec, reg)
200#define snd_soc_write(codec, reg, value) codec->write(codec, reg, value)
201
202/* codec register bit access */
203int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
204 unsigned short mask, unsigned short value);
205int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
206 unsigned short mask, unsigned short value);
207
208int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
209 struct snd_ac97_bus_ops *ops, int num);
210void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
211
212/*
213 *Controls
214 */
215struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
216 void *data, char *long_name);
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217int snd_soc_add_controls(struct snd_soc_codec *codec,
218 const struct snd_kcontrol_new *controls, int num_controls);
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219int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
220 struct snd_ctl_elem_info *uinfo);
221int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
222 struct snd_ctl_elem_info *uinfo);
223int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
224 struct snd_ctl_elem_value *ucontrol);
225int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
226 struct snd_ctl_elem_value *ucontrol);
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227int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
228 struct snd_ctl_elem_value *ucontrol);
229int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
230 struct snd_ctl_elem_value *ucontrol);
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231int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
232 struct snd_ctl_elem_info *uinfo);
233int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
234 struct snd_ctl_elem_info *uinfo);
392abe9c 235#define snd_soc_info_bool_ext snd_ctl_boolean_mono_info
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236int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
237 struct snd_ctl_elem_value *ucontrol);
238int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
239 struct snd_ctl_elem_value *ucontrol);
240int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
241 struct snd_ctl_elem_info *uinfo);
242int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
243 struct snd_ctl_elem_value *ucontrol);
244int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
245 struct snd_ctl_elem_value *ucontrol);
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246int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
247 struct snd_ctl_elem_info *uinfo);
248int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
249 struct snd_ctl_elem_value *ucontrol);
250int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
251 struct snd_ctl_elem_value *ucontrol);
808db4a4 252
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253/**
254 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
255 *
256 * @pin: name of the pin to update
257 * @mask: bits to check for in reported jack status
258 * @invert: if non-zero then pin is enabled when status is not reported
259 */
260struct snd_soc_jack_pin {
261 struct list_head list;
262 const char *pin;
263 int mask;
264 bool invert;
265};
266
267struct snd_soc_jack {
268 struct snd_jack *jack;
269 struct snd_soc_card *card;
270 struct list_head pins;
271 int status;
272};
273
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274/* SoC PCM stream information */
275struct snd_soc_pcm_stream {
276 char *stream_name;
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277 u64 formats; /* SNDRV_PCM_FMTBIT_* */
278 unsigned int rates; /* SNDRV_PCM_RATE_* */
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279 unsigned int rate_min; /* min rate */
280 unsigned int rate_max; /* max rate */
281 unsigned int channels_min; /* min channels */
282 unsigned int channels_max; /* max channels */
283 unsigned int active:1; /* stream is in use */
284};
285
286/* SoC audio ops */
287struct snd_soc_ops {
288 int (*startup)(struct snd_pcm_substream *);
289 void (*shutdown)(struct snd_pcm_substream *);
290 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
291 int (*hw_free)(struct snd_pcm_substream *);
292 int (*prepare)(struct snd_pcm_substream *);
293 int (*trigger)(struct snd_pcm_substream *, int);
294};
295
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296/* SoC Audio Codec */
297struct snd_soc_codec {
298 char *name;
299 struct module *owner;
300 struct mutex mutex;
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301 struct device *dev;
302
303 struct list_head list;
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304
305 /* callbacks */
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306 int (*set_bias_level)(struct snd_soc_codec *,
307 enum snd_soc_bias_level level);
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308
309 /* runtime */
310 struct snd_card *card;
311 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
312 unsigned int active;
313 unsigned int pcm_devs;
314 void *private_data;
315
316 /* codec IO */
317 void *control_data; /* codec control (i2c/3wire) data */
318 unsigned int (*read)(struct snd_soc_codec *, unsigned int);
319 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
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320 int (*display_register)(struct snd_soc_codec *, char *,
321 size_t, unsigned int);
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322 hw_write_t hw_write;
323 hw_read_t hw_read;
324 void *reg_cache;
325 short reg_cache_size;
326 short reg_cache_step;
327
328 /* dapm */
12ef193d 329 u32 pop_time;
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330 struct list_head dapm_widgets;
331 struct list_head dapm_paths;
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332 enum snd_soc_bias_level bias_level;
333 enum snd_soc_bias_level suspend_bias_level;
1321b160 334 struct delayed_work delayed_work;
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335
336 /* codec DAI's */
3c4b266f 337 struct snd_soc_dai *dai;
808db4a4 338 unsigned int num_dai;
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339
340#ifdef CONFIG_DEBUG_FS
341 struct dentry *debugfs_reg;
342 struct dentry *debugfs_pop_time;
343#endif
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344};
345
346/* codec device */
347struct snd_soc_codec_device {
348 int (*probe)(struct platform_device *pdev);
349 int (*remove)(struct platform_device *pdev);
350 int (*suspend)(struct platform_device *pdev, pm_message_t state);
351 int (*resume)(struct platform_device *pdev);
352};
353
354/* SoC platform interface */
355struct snd_soc_platform {
356 char *name;
12a48a8c 357 struct list_head list;
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358
359 int (*probe)(struct platform_device *pdev);
360 int (*remove)(struct platform_device *pdev);
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361 int (*suspend)(struct snd_soc_dai *dai);
362 int (*resume)(struct snd_soc_dai *dai);
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363
364 /* pcm creation and destruction */
3c4b266f 365 int (*pcm_new)(struct snd_card *, struct snd_soc_dai *,
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366 struct snd_pcm *);
367 void (*pcm_free)(struct snd_pcm *);
368
369 /* platform stream ops */
370 struct snd_pcm_ops *pcm_ops;
371};
372
373/* SoC machine DAI configuration, glues a codec and cpu DAI together */
374struct snd_soc_dai_link {
375 char *name; /* Codec name */
376 char *stream_name; /* Stream name */
377
378 /* DAI */
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379 struct snd_soc_dai *codec_dai;
380 struct snd_soc_dai *cpu_dai;
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381
382 /* machine stream operations */
383 struct snd_soc_ops *ops;
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384
385 /* codec/machine specific init - e.g. add machine controls */
386 int (*init)(struct snd_soc_codec *codec);
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387
388 /* DAI pcm */
389 struct snd_pcm *pcm;
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390};
391
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392/* SoC card */
393struct snd_soc_card {
808db4a4 394 char *name;
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395 struct device *dev;
396
397 struct list_head list;
398
399 int instantiated;
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400
401 int (*probe)(struct platform_device *pdev);
402 int (*remove)(struct platform_device *pdev);
403
404 /* the pre and post PM functions are used to do any PM work before and
405 * after the codec and DAI's do any PM work. */
406 int (*suspend_pre)(struct platform_device *pdev, pm_message_t state);
407 int (*suspend_post)(struct platform_device *pdev, pm_message_t state);
408 int (*resume_pre)(struct platform_device *pdev);
409 int (*resume_post)(struct platform_device *pdev);
410
0b4d221b 411 /* callbacks */
87506549 412 int (*set_bias_level)(struct snd_soc_card *,
0be9898a 413 enum snd_soc_bias_level level);
0b4d221b 414
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415 /* CPU <--> Codec DAI links */
416 struct snd_soc_dai_link *dai_link;
417 int num_links;
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418
419 struct snd_soc_device *socdev;
420
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421 struct snd_soc_codec *codec;
422
87689d56 423 struct snd_soc_platform *platform;
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424 struct delayed_work delayed_work;
425 struct work_struct deferred_resume_work;
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426};
427
428/* SoC Device - the audio subsystem */
429struct snd_soc_device {
430 struct device *dev;
87506549 431 struct snd_soc_card *card;
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432 struct snd_soc_codec_device *codec_dev;
433 void *codec_data;
434};
435
436/* runtime channel data */
437struct snd_soc_pcm_runtime {
1c433fbd 438 struct snd_soc_dai_link *dai;
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439 struct snd_soc_device *socdev;
440};
441
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442/* mixer control */
443struct soc_mixer_control {
444 int min, max;
815ecf8d 445 unsigned int reg, rreg, shift, rshift, invert;
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446};
447
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448/* enumerated kcontrol */
449struct soc_enum {
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450 unsigned short reg;
451 unsigned short reg2;
452 unsigned char shift_l;
453 unsigned char shift_r;
454 unsigned int max;
455 unsigned int mask;
456 const char **texts;
457 const unsigned int *values;
458 void *dapm;
459};
460
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461#include <sound/soc-dai.h>
462
808db4a4 463#endif
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