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_STANDBY,
219 SND_SOC_BIAS_PREPARE,
225 struct snd_soc_pcm_stream;
227 struct snd_soc_pcm_runtime;
229 struct snd_soc_dai_driver;
230 struct snd_soc_platform;
231 struct snd_soc_dai_link;
232 struct snd_soc_platform_driver;
233 struct snd_soc_codec;
234 struct snd_soc_codec_driver;
237 struct snd_soc_jack_zone;
238 struct snd_soc_jack_pin;
239 struct snd_soc_cache_ops;
240 #include <sound/soc-dapm.h>
242 #ifdef CONFIG_GPIOLIB
243 struct snd_soc_jack_gpio;
246 typedef int (*hw_write_t)(void *,const char* ,int);
248 extern struct snd_ac97_bus_ops soc_ac97_ops;
250 enum snd_soc_control_type {
256 enum snd_soc_compress_type {
257 SND_SOC_FLAT_COMPRESSION = 1,
258 SND_SOC_LZO_COMPRESSION,
259 SND_SOC_RBTREE_COMPRESSION
262 int snd_soc_register_card(struct snd_soc_card *card);
263 int snd_soc_unregister_card(struct snd_soc_card *card);
264 int snd_soc_suspend(struct device *dev);
265 int snd_soc_resume(struct device *dev);
266 int snd_soc_poweroff(struct device *dev);
267 int snd_soc_register_platform(struct device *dev,
268 struct snd_soc_platform_driver *platform_drv);
269 void snd_soc_unregister_platform(struct device *dev);
270 int snd_soc_register_codec(struct device *dev,
271 const struct snd_soc_codec_driver *codec_drv,
272 struct snd_soc_dai_driver *dai_drv, int num_dai);
273 void snd_soc_unregister_codec(struct device *dev);
274 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
276 int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
277 int addr_bits, int data_bits,
278 enum snd_soc_control_type control);
279 int snd_soc_cache_sync(struct snd_soc_codec *codec);
280 int snd_soc_cache_init(struct snd_soc_codec *codec);
281 int snd_soc_cache_exit(struct snd_soc_codec *codec);
282 int snd_soc_cache_write(struct snd_soc_codec *codec,
283 unsigned int reg, unsigned int value);
284 int snd_soc_cache_read(struct snd_soc_codec *codec,
285 unsigned int reg, unsigned int *value);
286 int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
288 int snd_soc_default_readable_register(struct snd_soc_codec *codec,
291 /* Utility functions to get clock rates from various things */
292 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
293 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
294 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
295 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
297 /* set runtime hw params */
298 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
299 const struct snd_pcm_hardware *hw);
302 int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type,
303 struct snd_soc_jack *jack);
304 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
305 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
306 struct snd_soc_jack_pin *pins);
307 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
308 struct notifier_block *nb);
309 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
310 struct notifier_block *nb);
311 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
312 struct snd_soc_jack_zone *zones);
313 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
314 #ifdef CONFIG_GPIOLIB
315 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
316 struct snd_soc_jack_gpio *gpios);
317 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
318 struct snd_soc_jack_gpio *gpios);
321 /* codec register bit access */
322 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
323 unsigned int mask, unsigned int value);
324 int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
325 unsigned short reg, unsigned int mask,
327 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
328 unsigned int mask, unsigned int value);
330 int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
331 struct snd_ac97_bus_ops *ops, int num);
332 void snd_soc_free_ac97_codec(struct snd_soc_codec *codec);
337 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
338 void *data, char *long_name);
339 int snd_soc_add_controls(struct snd_soc_codec *codec,
340 const struct snd_kcontrol_new *controls, int num_controls);
341 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
342 struct snd_ctl_elem_info *uinfo);
343 int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol,
344 struct snd_ctl_elem_info *uinfo);
345 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
346 struct snd_ctl_elem_value *ucontrol);
347 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
348 struct snd_ctl_elem_value *ucontrol);
349 int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
350 struct snd_ctl_elem_value *ucontrol);
351 int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
352 struct snd_ctl_elem_value *ucontrol);
353 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
354 struct snd_ctl_elem_info *uinfo);
355 int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol,
356 struct snd_ctl_elem_info *uinfo);
357 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info
358 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
359 struct snd_ctl_elem_value *ucontrol);
360 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
361 struct snd_ctl_elem_value *ucontrol);
362 int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol,
363 struct snd_ctl_elem_info *uinfo);
364 int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol,
365 struct snd_ctl_elem_value *ucontrol);
366 int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol,
367 struct snd_ctl_elem_value *ucontrol);
368 int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
369 struct snd_ctl_elem_info *uinfo);
370 int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
371 struct snd_ctl_elem_value *ucontrol);
372 int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
373 struct snd_ctl_elem_value *ucontrol);
374 int snd_soc_limit_volume(struct snd_soc_codec *codec,
375 const char *name, int max);
376 int snd_soc_info_volsw_2r_sx(struct snd_kcontrol *kcontrol,
377 struct snd_ctl_elem_info *uinfo);
378 int snd_soc_get_volsw_2r_sx(struct snd_kcontrol *kcontrol,
379 struct snd_ctl_elem_value *ucontrol);
380 int snd_soc_put_volsw_2r_sx(struct snd_kcontrol *kcontrol,
381 struct snd_ctl_elem_value *ucontrol);
384 * struct snd_soc_reg_access - Describes whether a given register is
385 * readable, writable or volatile.
387 * @reg: the register number
388 * @read: whether this register is readable
389 * @write: whether this register is writable
390 * @vol: whether this register is volatile
392 struct snd_soc_reg_access {
400 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
402 * @pin: name of the pin to update
403 * @mask: bits to check for in reported jack status
404 * @invert: if non-zero then pin is enabled when status is not reported
406 struct snd_soc_jack_pin {
407 struct list_head list;
414 * struct snd_soc_jack_zone - Describes voltage zones of jack detection
416 * @min_mv: start voltage in mv
417 * @max_mv: end voltage in mv
418 * @jack_type: type of jack that is expected for this voltage
419 * @debounce_time: debounce_time for jack, codec driver should wait for this
420 * duration before reading the adc for voltages
421 * @:list: list container
423 struct snd_soc_jack_zone {
426 unsigned int jack_type;
427 unsigned int debounce_time;
428 struct list_head list;
432 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
436 * @report: value to report when jack detected
437 * @invert: report presence in low state
438 * @debouce_time: debouce time in ms
439 * @wake: enable as wake source
441 #ifdef CONFIG_GPIOLIB
442 struct snd_soc_jack_gpio {
450 struct snd_soc_jack *jack;
451 struct delayed_work work;
453 int (*jack_status_check)(void);
457 struct snd_soc_jack {
458 struct snd_jack *jack;
459 struct snd_soc_codec *codec;
460 struct list_head pins;
462 struct blocking_notifier_head notifier;
463 struct list_head jack_zones;
466 /* SoC PCM stream information */
467 struct snd_soc_pcm_stream {
468 const char *stream_name;
469 u64 formats; /* SNDRV_PCM_FMTBIT_* */
470 unsigned int rates; /* SNDRV_PCM_RATE_* */
471 unsigned int rate_min; /* min rate */
472 unsigned int rate_max; /* max rate */
473 unsigned int channels_min; /* min channels */
474 unsigned int channels_max; /* max channels */
479 int (*startup)(struct snd_pcm_substream *);
480 void (*shutdown)(struct snd_pcm_substream *);
481 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
482 int (*hw_free)(struct snd_pcm_substream *);
483 int (*prepare)(struct snd_pcm_substream *);
484 int (*trigger)(struct snd_pcm_substream *, int);
488 struct snd_soc_cache_ops {
490 enum snd_soc_compress_type id;
491 int (*init)(struct snd_soc_codec *codec);
492 int (*exit)(struct snd_soc_codec *codec);
493 int (*read)(struct snd_soc_codec *codec, unsigned int reg,
494 unsigned int *value);
495 int (*write)(struct snd_soc_codec *codec, unsigned int reg,
497 int (*sync)(struct snd_soc_codec *codec);
500 /* SoC Audio Codec device */
501 struct snd_soc_codec {
503 const char *name_prefix;
506 const struct snd_soc_codec_driver *driver;
509 struct snd_soc_card *card;
510 struct list_head list;
511 struct list_head card_list;
513 enum snd_soc_compress_type compress_type;
514 size_t reg_size; /* reg_cache_size * reg_word_size */
515 int (*volatile_register)(struct snd_soc_codec *, unsigned int);
516 int (*readable_register)(struct snd_soc_codec *, unsigned int);
519 struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */
521 unsigned int cache_bypass:1; /* Suppress access to the cache */
522 unsigned int suspended:1; /* Codec is in suspend PM state */
523 unsigned int probed:1; /* Codec has been probed */
524 unsigned int ac97_registered:1; /* Codec has been AC97 registered */
525 unsigned int ac97_created:1; /* Codec has been created by SoC */
526 unsigned int sysfs_registered:1; /* codec has been sysfs registered */
527 unsigned int cache_init:1; /* codec cache has been initialized */
528 u32 cache_only; /* Suppress writes to hardware */
529 u32 cache_sync; /* Cache needs to be synced to hardware */
532 void *control_data; /* codec control (i2c/3wire) data */
534 unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
535 unsigned int (*read)(struct snd_soc_codec *, unsigned int);
536 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
538 const void *reg_def_copy;
539 const struct snd_soc_cache_ops *cache_ops;
540 struct mutex cache_rw_mutex;
543 struct snd_soc_dapm_context dapm;
545 #ifdef CONFIG_DEBUG_FS
546 struct dentry *debugfs_codec_root;
547 struct dentry *debugfs_reg;
548 struct dentry *debugfs_dapm;
553 struct snd_soc_codec_driver {
556 int (*probe)(struct snd_soc_codec *);
557 int (*remove)(struct snd_soc_codec *);
558 int (*suspend)(struct snd_soc_codec *,
560 int (*resume)(struct snd_soc_codec *);
563 unsigned int (*read)(struct snd_soc_codec *, unsigned int);
564 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
565 int (*display_register)(struct snd_soc_codec *, char *,
566 size_t, unsigned int);
567 int (*volatile_register)(struct snd_soc_codec *, unsigned int);
568 int (*readable_register)(struct snd_soc_codec *, unsigned int);
569 short reg_cache_size;
570 short reg_cache_step;
572 const void *reg_cache_default;
573 short reg_access_size;
574 const struct snd_soc_reg_access *reg_access_default;
575 enum snd_soc_compress_type compress_type;
577 /* codec bias level */
578 int (*set_bias_level)(struct snd_soc_codec *,
579 enum snd_soc_bias_level level);
581 void (*seq_notifier)(struct snd_soc_dapm_context *,
582 enum snd_soc_dapm_type, int);
585 /* SoC platform interface */
586 struct snd_soc_platform_driver {
588 int (*probe)(struct snd_soc_platform *);
589 int (*remove)(struct snd_soc_platform *);
590 int (*suspend)(struct snd_soc_dai *dai);
591 int (*resume)(struct snd_soc_dai *dai);
593 /* pcm creation and destruction */
594 int (*pcm_new)(struct snd_card *, struct snd_soc_dai *,
596 void (*pcm_free)(struct snd_pcm *);
599 * For platform caused delay reporting.
602 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *,
603 struct snd_soc_dai *);
605 /* platform stream ops */
606 struct snd_pcm_ops *ops;
609 struct snd_soc_platform {
613 struct snd_soc_platform_driver *driver;
615 unsigned int suspended:1; /* platform is suspended */
616 unsigned int probed:1;
618 struct snd_soc_card *card;
619 struct list_head list;
620 struct list_head card_list;
623 struct snd_soc_dai_link {
624 /* config - must be set by machine driver */
625 const char *name; /* Codec name */
626 const char *stream_name; /* Stream name */
627 const char *codec_name; /* for multi-codec */
628 const char *platform_name; /* for multi-platform */
629 const char *cpu_dai_name;
630 const char *codec_dai_name;
632 /* Keep DAI active over suspend */
633 unsigned int ignore_suspend:1;
635 /* Symmetry requirements */
636 unsigned int symmetric_rates:1;
638 /* codec/machine specific init - e.g. add machine controls */
639 int (*init)(struct snd_soc_pcm_runtime *rtd);
641 /* machine stream operations */
642 struct snd_soc_ops *ops;
645 struct snd_soc_codec_conf {
646 const char *dev_name;
649 * optional map of kcontrol, widget and path name prefixes that are
650 * associated per device
652 const char *name_prefix;
655 * set this to the desired compression type if you want to
656 * override the one supplied in codec->driver->compress_type
658 enum snd_soc_compress_type compress_type;
661 struct snd_soc_aux_dev {
662 const char *name; /* Codec name */
663 const char *codec_name; /* for multi-codec */
665 /* codec/machine specific init - e.g. add machine controls */
666 int (*init)(struct snd_soc_dapm_context *dapm);
670 struct snd_soc_card {
673 struct snd_card *snd_card;
674 struct module *owner;
676 struct list_head list;
681 int (*probe)(struct snd_soc_card *card);
682 int (*remove)(struct snd_soc_card *card);
684 /* the pre and post PM functions are used to do any PM work before and
685 * after the codec and DAI's do any PM work. */
686 int (*suspend_pre)(struct snd_soc_card *card);
687 int (*suspend_post)(struct snd_soc_card *card);
688 int (*resume_pre)(struct snd_soc_card *card);
689 int (*resume_post)(struct snd_soc_card *card);
692 int (*set_bias_level)(struct snd_soc_card *,
693 enum snd_soc_bias_level level);
694 int (*set_bias_level_post)(struct snd_soc_card *,
695 enum snd_soc_bias_level level);
699 /* CPU <--> Codec DAI links */
700 struct snd_soc_dai_link *dai_link;
702 struct snd_soc_pcm_runtime *rtd;
705 /* optional codec specific configuration */
706 struct snd_soc_codec_conf *codec_conf;
710 * optional auxiliary devices such as amplifiers or codecs with DAI
713 struct snd_soc_aux_dev *aux_dev;
715 struct snd_soc_pcm_runtime *rtd_aux;
718 struct work_struct deferred_resume_work;
720 /* lists of probed devices belonging to this card */
721 struct list_head codec_dev_list;
722 struct list_head platform_dev_list;
723 struct list_head dai_dev_list;
725 struct list_head widgets;
726 struct list_head paths;
727 struct list_head dapm_list;
729 #ifdef CONFIG_DEBUG_FS
730 struct dentry *debugfs_card_root;
731 struct dentry *debugfs_pop_time;
738 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
739 struct snd_soc_pcm_runtime {
741 struct snd_soc_card *card;
742 struct snd_soc_dai_link *dai_link;
744 unsigned int complete:1;
745 unsigned int dev_registered:1;
747 /* Symmetry data - only valid if symmetry is being enforced */
751 /* runtime devices */
753 struct snd_soc_codec *codec;
754 struct snd_soc_platform *platform;
755 struct snd_soc_dai *codec_dai;
756 struct snd_soc_dai *cpu_dai;
758 struct delayed_work delayed_work;
762 struct soc_mixer_control {
763 int min, max, platform_max;
764 unsigned int reg, rreg, shift, rshift, invert;
767 /* enumerated kcontrol */
771 unsigned char shift_l;
772 unsigned char shift_r;
776 const unsigned int *values;
781 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
782 unsigned int snd_soc_write(struct snd_soc_codec *codec,
783 unsigned int reg, unsigned int val);
785 /* device driver data */
787 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
790 card->drvdata = data;
793 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
795 return card->drvdata;
798 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec,
801 dev_set_drvdata(codec->dev, data);
804 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec)
806 return dev_get_drvdata(codec->dev);
809 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform,
812 dev_set_drvdata(platform->dev, data);
815 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform)
817 return dev_get_drvdata(platform->dev);
820 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd,
823 dev_set_drvdata(&rtd->dev, data);
826 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd)
828 return dev_get_drvdata(&rtd->dev);
831 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
833 INIT_LIST_HEAD(&card->dai_dev_list);
834 INIT_LIST_HEAD(&card->codec_dev_list);
835 INIT_LIST_HEAD(&card->platform_dev_list);
836 INIT_LIST_HEAD(&card->widgets);
837 INIT_LIST_HEAD(&card->paths);
838 INIT_LIST_HEAD(&card->dapm_list);
841 #include <sound/soc-dai.h>
843 #ifdef CONFIG_DEBUG_FS
844 extern struct dentry *snd_soc_debugfs_root;
847 extern const struct dev_pm_ops snd_soc_pm_ops;