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, \
33 .platform_max = xmax, .invert = xinvert})
34 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
35 ((unsigned long)&(struct soc_mixer_control) \
36 {.reg = xreg, .max = xmax, .platform_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, .platform_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, .platform_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, .platform_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, .platform_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 .platform_max = xmax} }
94 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \
95 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
96 .max = xmax, .texts = xtexts }
97 #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \
98 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts)
99 #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \
100 { .max = xmax, .texts = xtexts }
101 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \
102 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
103 .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues}
104 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \
105 SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues)
106 #define SOC_ENUM(xname, xenum) \
107 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
108 .info = snd_soc_info_enum_double, \
109 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
110 .private_value = (unsigned long)&xenum }
111 #define SOC_VALUE_ENUM(xname, xenum) \
112 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
113 .info = snd_soc_info_enum_double, \
114 .get = snd_soc_get_value_enum_double, \
115 .put = snd_soc_put_value_enum_double, \
116 .private_value = (unsigned long)&xenum }
117 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
118 xhandler_get, xhandler_put) \
119 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
120 .info = snd_soc_info_volsw, \
121 .get = xhandler_get, .put = xhandler_put, \
122 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
123 #define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\
124 xhandler_get, xhandler_put) \
125 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
126 .info = snd_soc_info_volsw, \
127 .get = xhandler_get, .put = xhandler_put, \
128 .private_value = (unsigned long)&(struct soc_mixer_control) \
129 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
130 .max = xmax, .platform_max = xmax, .invert = xinvert} }
131 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
132 xhandler_get, xhandler_put, tlv_array) \
133 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
134 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
135 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
136 .tlv.p = (tlv_array), \
137 .info = snd_soc_info_volsw, \
138 .get = xhandler_get, .put = xhandler_put, \
139 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) }
140 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
141 xhandler_get, xhandler_put, tlv_array) \
142 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
143 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
144 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
145 .tlv.p = (tlv_array), \
146 .info = snd_soc_info_volsw, \
147 .get = xhandler_get, .put = xhandler_put, \
148 .private_value = (unsigned long)&(struct soc_mixer_control) \
149 {.reg = xreg, .shift = shift_left, .rshift = shift_right, \
150 .max = xmax, .platform_max = xmax, .invert = xinvert} }
151 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
152 xhandler_get, xhandler_put, tlv_array) \
153 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
154 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
155 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
156 .tlv.p = (tlv_array), \
157 .info = snd_soc_info_volsw_2r, \
158 .get = xhandler_get, .put = xhandler_put, \
159 .private_value = (unsigned long)&(struct soc_mixer_control) \
160 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
161 .max = xmax, .platform_max = xmax, .invert = xinvert} }
162 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
163 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
164 .info = snd_soc_info_bool_ext, \
165 .get = xhandler_get, .put = xhandler_put, \
166 .private_value = xdata }
167 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
168 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
169 .info = snd_soc_info_enum_ext, \
170 .get = xhandler_get, .put = xhandler_put, \
171 .private_value = (unsigned long)&xenum }
173 #define SOC_DOUBLE_R_SX_TLV(xname, xreg_left, xreg_right, xshift,\
174 xmin, xmax, tlv_array) \
175 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
176 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
177 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
178 .tlv.p = (tlv_array), \
179 .info = snd_soc_info_volsw_2r_sx, \
180 .get = snd_soc_get_volsw_2r_sx, \
181 .put = snd_soc_put_volsw_2r_sx, \
182 .private_value = (unsigned long)&(struct soc_mixer_control) \
184 .rreg = xreg_right, .shift = xshift, \
185 .min = xmin, .max = xmax} }
189 * Simplified versions of above macros, declaring a struct and calculating
190 * ARRAY_SIZE internally
192 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
193 struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
194 ARRAY_SIZE(xtexts), xtexts)
195 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
196 SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
197 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
198 struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
199 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
200 struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
201 ARRAY_SIZE(xtexts), xtexts, xvalues)
202 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
203 SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
208 * @ON: Bias is fully on for audio playback and capture operations.
209 * @PREPARE: Prepare for audio operations. Called before DAPM switching for
210 * stream start and stop operations.
211 * @STANDBY: Low power standby state when no playback/capture operations are
212 * in progress. NOTE: The transition time between STANDBY and ON
213 * should be as fast as possible and no longer than 10ms.
214 * @OFF: Power Off. No restrictions on transition times.
216 enum snd_soc_bias_level
{
218 SND_SOC_BIAS_PREPARE
,
219 SND_SOC_BIAS_STANDBY
,
225 struct snd_soc_device
;
226 struct snd_soc_pcm_stream
;
228 struct snd_soc_dai_mode
;
229 struct snd_soc_pcm_runtime
;
231 struct snd_soc_platform
;
232 struct snd_soc_dai_link
;
233 struct snd_soc_codec
;
235 struct snd_soc_ac97_ops
;
237 struct snd_soc_jack_pin
;
238 #ifdef CONFIG_GPIOLIB
239 struct snd_soc_jack_gpio
;
242 typedef int (*hw_write_t
)(void *,const char* ,int);
244 extern struct snd_ac97_bus_ops soc_ac97_ops
;
246 enum snd_soc_control_type
{
252 int snd_soc_register_platform(struct snd_soc_platform
*platform
);
253 void snd_soc_unregister_platform(struct snd_soc_platform
*platform
);
254 int snd_soc_register_codec(struct snd_soc_codec
*codec
);
255 void snd_soc_unregister_codec(struct snd_soc_codec
*codec
);
256 int snd_soc_codec_volatile_register(struct snd_soc_codec
*codec
, int reg
);
257 int snd_soc_codec_set_cache_io(struct snd_soc_codec
*codec
,
258 int addr_bits
, int data_bits
,
259 enum snd_soc_control_type control
);
261 /* pcm <-> DAI connect */
262 void snd_soc_free_pcms(struct snd_soc_device
*socdev
);
263 int snd_soc_new_pcms(struct snd_soc_device
*socdev
, int idx
, const char *xid
);
265 /* Utility functions to get clock rates from various things */
266 int snd_soc_calc_frame_size(int sample_size
, int channels
, int tdm_slots
);
267 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params
*params
);
268 int snd_soc_calc_bclk(int fs
, int sample_size
, int channels
, int tdm_slots
);
269 int snd_soc_params_to_bclk(struct snd_pcm_hw_params
*parms
);
271 /* set runtime hw params */
272 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream
*substream
,
273 const struct snd_pcm_hardware
*hw
);
276 int snd_soc_jack_new(struct snd_soc_card
*card
, const char *id
, int type
,
277 struct snd_soc_jack
*jack
);
278 void snd_soc_jack_report(struct snd_soc_jack
*jack
, int status
, int mask
);
279 int snd_soc_jack_add_pins(struct snd_soc_jack
*jack
, int count
,
280 struct snd_soc_jack_pin
*pins
);
281 void snd_soc_jack_notifier_register(struct snd_soc_jack
*jack
,
282 struct notifier_block
*nb
);
283 void snd_soc_jack_notifier_unregister(struct snd_soc_jack
*jack
,
284 struct notifier_block
*nb
);
285 #ifdef CONFIG_GPIOLIB
286 int snd_soc_jack_add_gpios(struct snd_soc_jack
*jack
, int count
,
287 struct snd_soc_jack_gpio
*gpios
);
288 void snd_soc_jack_free_gpios(struct snd_soc_jack
*jack
, int count
,
289 struct snd_soc_jack_gpio
*gpios
);
292 /* codec register bit access */
293 int snd_soc_update_bits(struct snd_soc_codec
*codec
, unsigned short reg
,
294 unsigned int mask
, unsigned int value
);
295 int snd_soc_update_bits_locked(struct snd_soc_codec
*codec
,
296 unsigned short reg
, unsigned int mask
,
298 int snd_soc_test_bits(struct snd_soc_codec
*codec
, unsigned short reg
,
299 unsigned int mask
, unsigned int value
);
301 int snd_soc_new_ac97_codec(struct snd_soc_codec
*codec
,
302 struct snd_ac97_bus_ops
*ops
, int num
);
303 void snd_soc_free_ac97_codec(struct snd_soc_codec
*codec
);
308 struct snd_kcontrol
*snd_soc_cnew(const struct snd_kcontrol_new
*_template
,
309 void *data
, char *long_name
);
310 int snd_soc_add_controls(struct snd_soc_codec
*codec
,
311 const struct snd_kcontrol_new
*controls
, int num_controls
);
312 int snd_soc_info_enum_double(struct snd_kcontrol
*kcontrol
,
313 struct snd_ctl_elem_info
*uinfo
);
314 int snd_soc_info_enum_ext(struct snd_kcontrol
*kcontrol
,
315 struct snd_ctl_elem_info
*uinfo
);
316 int snd_soc_get_enum_double(struct snd_kcontrol
*kcontrol
,
317 struct snd_ctl_elem_value
*ucontrol
);
318 int snd_soc_put_enum_double(struct snd_kcontrol
*kcontrol
,
319 struct snd_ctl_elem_value
*ucontrol
);
320 int snd_soc_get_value_enum_double(struct snd_kcontrol
*kcontrol
,
321 struct snd_ctl_elem_value
*ucontrol
);
322 int snd_soc_put_value_enum_double(struct snd_kcontrol
*kcontrol
,
323 struct snd_ctl_elem_value
*ucontrol
);
324 int snd_soc_info_volsw(struct snd_kcontrol
*kcontrol
,
325 struct snd_ctl_elem_info
*uinfo
);
326 int snd_soc_info_volsw_ext(struct snd_kcontrol
*kcontrol
,
327 struct snd_ctl_elem_info
*uinfo
);
328 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info
329 int snd_soc_get_volsw(struct snd_kcontrol
*kcontrol
,
330 struct snd_ctl_elem_value
*ucontrol
);
331 int snd_soc_put_volsw(struct snd_kcontrol
*kcontrol
,
332 struct snd_ctl_elem_value
*ucontrol
);
333 int snd_soc_info_volsw_2r(struct snd_kcontrol
*kcontrol
,
334 struct snd_ctl_elem_info
*uinfo
);
335 int snd_soc_get_volsw_2r(struct snd_kcontrol
*kcontrol
,
336 struct snd_ctl_elem_value
*ucontrol
);
337 int snd_soc_put_volsw_2r(struct snd_kcontrol
*kcontrol
,
338 struct snd_ctl_elem_value
*ucontrol
);
339 int snd_soc_info_volsw_s8(struct snd_kcontrol
*kcontrol
,
340 struct snd_ctl_elem_info
*uinfo
);
341 int snd_soc_get_volsw_s8(struct snd_kcontrol
*kcontrol
,
342 struct snd_ctl_elem_value
*ucontrol
);
343 int snd_soc_put_volsw_s8(struct snd_kcontrol
*kcontrol
,
344 struct snd_ctl_elem_value
*ucontrol
);
345 int snd_soc_limit_volume(struct snd_soc_codec
*codec
,
346 const char *name
, int max
);
347 int snd_soc_info_volsw_2r_sx(struct snd_kcontrol
*kcontrol
,
348 struct snd_ctl_elem_info
*uinfo
);
349 int snd_soc_get_volsw_2r_sx(struct snd_kcontrol
*kcontrol
,
350 struct snd_ctl_elem_value
*ucontrol
);
351 int snd_soc_put_volsw_2r_sx(struct snd_kcontrol
*kcontrol
,
352 struct snd_ctl_elem_value
*ucontrol
);
355 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
357 * @pin: name of the pin to update
358 * @mask: bits to check for in reported jack status
359 * @invert: if non-zero then pin is enabled when status is not reported
361 struct snd_soc_jack_pin
{
362 struct list_head list
;
369 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
373 * @report: value to report when jack detected
374 * @invert: report presence in low state
375 * @debouce_time: debouce time in ms
377 #ifdef CONFIG_GPIOLIB
378 struct snd_soc_jack_gpio
{
384 struct snd_soc_jack
*jack
;
385 struct work_struct work
;
387 int (*jack_status_check
)(void);
391 struct snd_soc_jack
{
392 struct snd_jack
*jack
;
393 struct snd_soc_card
*card
;
394 struct list_head pins
;
396 struct blocking_notifier_head notifier
;
399 /* SoC PCM stream information */
400 struct snd_soc_pcm_stream
{
402 u64 formats
; /* SNDRV_PCM_FMTBIT_* */
403 unsigned int rates
; /* SNDRV_PCM_RATE_* */
404 unsigned int rate_min
; /* min rate */
405 unsigned int rate_max
; /* max rate */
406 unsigned int channels_min
; /* min channels */
407 unsigned int channels_max
; /* max channels */
408 unsigned int active
; /* stream is in use */
409 void *dma_data
; /* used by platform code */
414 int (*startup
)(struct snd_pcm_substream
*);
415 void (*shutdown
)(struct snd_pcm_substream
*);
416 int (*hw_params
)(struct snd_pcm_substream
*, struct snd_pcm_hw_params
*);
417 int (*hw_free
)(struct snd_pcm_substream
*);
418 int (*prepare
)(struct snd_pcm_substream
*);
419 int (*trigger
)(struct snd_pcm_substream
*, int);
422 /* SoC Audio Codec */
423 struct snd_soc_codec
{
425 struct module
*owner
;
428 struct snd_soc_device
*socdev
;
430 struct list_head list
;
433 int (*set_bias_level
)(struct snd_soc_codec
*,
434 enum snd_soc_bias_level level
);
437 struct snd_card
*card
;
438 struct snd_ac97
*ac97
; /* for ad-hoc ac97 devices */
440 unsigned int pcm_devs
;
444 void *control_data
; /* codec control (i2c/3wire) data */
445 unsigned int (*read
)(struct snd_soc_codec
*, unsigned int);
446 int (*write
)(struct snd_soc_codec
*, unsigned int, unsigned int);
447 int (*display_register
)(struct snd_soc_codec
*, char *,
448 size_t, unsigned int);
449 int (*volatile_register
)(unsigned int);
450 int (*readable_register
)(unsigned int);
452 unsigned int (*hw_read
)(struct snd_soc_codec
*, unsigned int);
454 short reg_cache_size
;
455 short reg_cache_step
;
457 unsigned int idle_bias_off
:1; /* Use BIAS_OFF instead of STANDBY */
458 unsigned int cache_only
:1; /* Suppress writes to hardware */
459 unsigned int cache_sync
:1; /* Cache needs to be synced to hardware */
463 struct list_head dapm_widgets
;
464 struct list_head dapm_paths
;
465 enum snd_soc_bias_level bias_level
;
466 enum snd_soc_bias_level suspend_bias_level
;
467 struct delayed_work delayed_work
;
470 struct snd_soc_dai
*dai
;
471 unsigned int num_dai
;
473 #ifdef CONFIG_DEBUG_FS
474 struct dentry
*debugfs_codec_root
;
475 struct dentry
*debugfs_reg
;
476 struct dentry
*debugfs_pop_time
;
477 struct dentry
*debugfs_dapm
;
482 struct snd_soc_codec_device
{
483 int (*probe
)(struct platform_device
*pdev
);
484 int (*remove
)(struct platform_device
*pdev
);
485 int (*suspend
)(struct platform_device
*pdev
, pm_message_t state
);
486 int (*resume
)(struct platform_device
*pdev
);
489 /* SoC platform interface */
490 struct snd_soc_platform
{
492 struct list_head list
;
494 int (*probe
)(struct platform_device
*pdev
);
495 int (*remove
)(struct platform_device
*pdev
);
496 int (*suspend
)(struct snd_soc_dai_link
*dai_link
);
497 int (*resume
)(struct snd_soc_dai_link
*dai_link
);
499 /* pcm creation and destruction */
500 int (*pcm_new
)(struct snd_card
*, struct snd_soc_dai
*,
502 void (*pcm_free
)(struct snd_pcm
*);
505 * For platform caused delay reporting.
508 snd_pcm_sframes_t (*delay
)(struct snd_pcm_substream
*,
509 struct snd_soc_dai
*);
511 /* platform stream ops */
512 struct snd_pcm_ops
*pcm_ops
;
515 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
516 struct snd_soc_dai_link
{
517 char *name
; /* Codec name */
518 char *stream_name
; /* Stream name */
521 struct snd_soc_dai
*codec_dai
;
522 struct snd_soc_dai
*cpu_dai
;
524 /* machine stream operations */
525 struct snd_soc_ops
*ops
;
527 /* codec/machine specific init - e.g. add machine controls */
528 int (*init
)(struct snd_soc_codec
*codec
);
530 /* Keep DAI active over suspend */
531 unsigned int ignore_suspend
:1;
533 /* Symmetry requirements */
534 unsigned int symmetric_rates
:1;
536 /* Symmetry data - only valid if symmetry is being enforced */
544 struct snd_soc_card
{
548 struct list_head list
;
552 int (*probe
)(struct platform_device
*pdev
);
553 int (*remove
)(struct platform_device
*pdev
);
555 /* the pre and post PM functions are used to do any PM work before and
556 * after the codec and DAI's do any PM work. */
557 int (*suspend_pre
)(struct platform_device
*pdev
, pm_message_t state
);
558 int (*suspend_post
)(struct platform_device
*pdev
, pm_message_t state
);
559 int (*resume_pre
)(struct platform_device
*pdev
);
560 int (*resume_post
)(struct platform_device
*pdev
);
563 int (*set_bias_level
)(struct snd_soc_card
*,
564 enum snd_soc_bias_level level
);
568 /* CPU <--> Codec DAI links */
569 struct snd_soc_dai_link
*dai_link
;
572 struct snd_soc_device
*socdev
;
574 struct snd_soc_codec
*codec
;
576 struct snd_soc_platform
*platform
;
577 struct delayed_work delayed_work
;
578 struct work_struct deferred_resume_work
;
581 /* SoC Device - the audio subsystem */
582 struct snd_soc_device
{
584 struct snd_soc_card
*card
;
585 struct snd_soc_codec_device
*codec_dev
;
589 /* runtime channel data */
590 struct snd_soc_pcm_runtime
{
591 struct snd_soc_dai_link
*dai
;
592 struct snd_soc_device
*socdev
;
596 struct soc_mixer_control
{
597 int min
, max
, platform_max
;
598 unsigned int reg
, rreg
, shift
, rshift
, invert
;
601 /* enumerated kcontrol */
605 unsigned char shift_l
;
606 unsigned char shift_r
;
610 const unsigned int *values
;
615 static inline unsigned int snd_soc_read(struct snd_soc_codec
*codec
,
618 return codec
->read(codec
, reg
);
621 static inline unsigned int snd_soc_write(struct snd_soc_codec
*codec
,
622 unsigned int reg
, unsigned int val
)
624 return codec
->write(codec
, reg
, val
);
627 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec
*codec
,
630 codec
->drvdata
= data
;
633 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec
*codec
)
635 return codec
->drvdata
;
638 #include <sound/soc-dai.h>