Root/
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> |
18 | #include <linux/workqueue.h> |
19 | #include <linux/interrupt.h> |
20 | #include <linux/kernel.h> |
21 | #include <sound/core.h> |
22 | #include <sound/pcm.h> |
23 | #include <sound/control.h> |
24 | #include <sound/ac97_codec.h> |
25 | |
26 | /* |
27 | * Convenience kcontrol builders |
28 | */ |
29 | #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \ |
30 | ((unsigned long)&(struct soc_mixer_control) \ |
31 | {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \ |
32 | .invert = xinvert}) |
33 | #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \ |
34 | ((unsigned long)&(struct soc_mixer_control) \ |
35 | {.reg = xreg, .max = xmax, .invert = xinvert}) |
36 | #define SOC_SINGLE(xname, reg, shift, max, invert) \ |
37 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
38 | .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ |
39 | .put = snd_soc_put_volsw, \ |
40 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } |
41 | #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ |
42 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
43 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ |
44 | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ |
45 | .tlv.p = (tlv_array), \ |
46 | .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ |
47 | .put = snd_soc_put_volsw, \ |
48 | .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } |
49 | #define SOC_DOUBLE(xname, xreg, shift_left, shift_right, xmax, xinvert) \ |
50 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ |
51 | .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ |
52 | .put = snd_soc_put_volsw, \ |
53 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
54 | {.reg = xreg, .shift = shift_left, .rshift = shift_right, \ |
55 | .max = xmax, .invert = xinvert} } |
56 | #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \ |
57 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ |
58 | .info = snd_soc_info_volsw_2r, \ |
59 | .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \ |
60 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
61 | {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ |
62 | .max = xmax, .invert = xinvert} } |
63 | #define SOC_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert, tlv_array) \ |
64 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ |
65 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ |
66 | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ |
67 | .tlv.p = (tlv_array), \ |
68 | .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ |
69 | .put = snd_soc_put_volsw, \ |
70 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
71 | {.reg = xreg, .shift = shift_left, .rshift = shift_right,\ |
72 | .max = xmax, .invert = xinvert} } |
73 | #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \ |
74 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ |
75 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ |
76 | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ |
77 | .tlv.p = (tlv_array), \ |
78 | .info = snd_soc_info_volsw_2r, \ |
79 | .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \ |
80 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
81 | {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ |
82 | .max = xmax, .invert = xinvert} } |
83 | #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \ |
84 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ |
85 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ |
86 | SNDRV_CTL_ELEM_ACCESS_READWRITE, \ |
87 | .tlv.p = (tlv_array), \ |
88 | .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \ |
89 | .put = snd_soc_put_volsw_s8, \ |
90 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
91 | {.reg = xreg, .min = xmin, .max = xmax} } |
92 | #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \ |
93 | { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ |
94 | .max = xmax, .texts = xtexts } |
95 | #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \ |
96 | SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts) |
97 | #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \ |
98 | { .max = xmax, .texts = xtexts } |
99 | #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \ |
100 | { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ |
101 | .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues} |
102 | #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \ |
103 | SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues) |
104 | #define SOC_ENUM(xname, xenum) \ |
105 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ |
106 | .info = snd_soc_info_enum_double, \ |
107 | .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \ |
108 | .private_value = (unsigned long)&xenum } |
109 | #define SOC_VALUE_ENUM(xname, xenum) \ |
110 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ |
111 | .info = snd_soc_info_enum_double, \ |
112 | .get = snd_soc_get_value_enum_double, \ |
113 | .put = snd_soc_put_value_enum_double, \ |
114 | .private_value = (unsigned long)&xenum } |
115 | #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\ |
116 | xhandler_get, xhandler_put) \ |
117 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
118 | .info = snd_soc_info_volsw, \ |
119 | .get = xhandler_get, .put = xhandler_put, \ |
120 | .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) } |
121 | #define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\ |
122 | xhandler_get, xhandler_put) \ |
123 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ |
124 | .info = snd_soc_info_volsw, \ |
125 | .get = xhandler_get, .put = xhandler_put, \ |
126 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
127 | {.reg = xreg, .shift = shift_left, .rshift = shift_right, \ |
128 | .max = xmax, .invert = xinvert} } |
129 | #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\ |
130 | xhandler_get, xhandler_put, tlv_array) \ |
131 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
132 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ |
133 | SNDRV_CTL_ELEM_ACCESS_READWRITE,\ |
134 | .tlv.p = (tlv_array), \ |
135 | .info = snd_soc_info_volsw, \ |
136 | .get = xhandler_get, .put = xhandler_put, \ |
137 | .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) } |
138 | #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\ |
139 | xhandler_get, xhandler_put, tlv_array) \ |
140 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ |
141 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ |
142 | SNDRV_CTL_ELEM_ACCESS_READWRITE, \ |
143 | .tlv.p = (tlv_array), \ |
144 | .info = snd_soc_info_volsw, \ |
145 | .get = xhandler_get, .put = xhandler_put, \ |
146 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
147 | {.reg = xreg, .shift = shift_left, .rshift = shift_right, \ |
148 | .max = xmax, .invert = xinvert} } |
149 | #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\ |
150 | xhandler_get, xhandler_put, tlv_array) \ |
151 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ |
152 | .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ |
153 | SNDRV_CTL_ELEM_ACCESS_READWRITE, \ |
154 | .tlv.p = (tlv_array), \ |
155 | .info = snd_soc_info_volsw_2r, \ |
156 | .get = xhandler_get, .put = xhandler_put, \ |
157 | .private_value = (unsigned long)&(struct soc_mixer_control) \ |
158 | {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ |
159 | .max = xmax, .invert = xinvert} } |
160 | #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \ |
161 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
162 | .info = snd_soc_info_bool_ext, \ |
163 | .get = xhandler_get, .put = xhandler_put, \ |
164 | .private_value = xdata } |
165 | #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ |
166 | { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ |
167 | .info = snd_soc_info_enum_ext, \ |
168 | .get = xhandler_get, .put = xhandler_put, \ |
169 | .private_value = (unsigned long)&xenum } |
170 | |
171 | /* |
172 | * Simplified versions of above macros, declaring a struct and calculating |
173 | * ARRAY_SIZE internally |
174 | */ |
175 | #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \ |
176 | struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \ |
177 | ARRAY_SIZE(xtexts), xtexts) |
178 | #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \ |
179 | SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts) |
180 | #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \ |
181 | struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts) |
182 | #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \ |
183 | struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \ |
184 | ARRAY_SIZE(xtexts), xtexts, xvalues) |
185 | #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \ |
186 | SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues) |
187 | |
188 | /* |
189 | * Bias levels |
190 | * |
191 | * @ON: Bias is fully on for audio playback and capture operations. |
192 | * @PREPARE: Prepare for audio operations. Called before DAPM switching for |
193 | * stream start and stop operations. |
194 | * @STANDBY: Low power standby state when no playback/capture operations are |
195 | * in progress. NOTE: The transition time between STANDBY and ON |
196 | * should be as fast as possible and no longer than 10ms. |
197 | * @OFF: Power Off. No restrictions on transition times. |
198 | */ |
199 | enum snd_soc_bias_level { |
200 | SND_SOC_BIAS_ON, |
201 | SND_SOC_BIAS_PREPARE, |
202 | SND_SOC_BIAS_STANDBY, |
203 | SND_SOC_BIAS_OFF, |
204 | }; |
205 | |
206 | struct snd_jack; |
207 | struct snd_soc_card; |
208 | struct snd_soc_device; |
209 | struct snd_soc_pcm_stream; |
210 | struct snd_soc_ops; |
211 | struct snd_soc_dai_mode; |
212 | struct snd_soc_pcm_runtime; |
213 | struct snd_soc_dai; |
214 | struct snd_soc_platform; |
215 | struct snd_soc_codec; |
216 | struct soc_enum; |
217 | struct snd_soc_ac97_ops; |
218 | struct snd_soc_jack; |
219 | struct snd_soc_jack_pin; |
220 | #ifdef CONFIG_GPIOLIB |
221 | struct snd_soc_jack_gpio; |
222 | #endif |
223 | |
224 | typedef int (*hw_write_t)(void *,const char* ,int); |
225 | |
226 | extern struct snd_ac97_bus_ops soc_ac97_ops; |
227 | |
228 | enum snd_soc_control_type { |
229 | SND_SOC_CUSTOM, |
230 | SND_SOC_I2C, |
231 | SND_SOC_SPI, |
232 | }; |
233 | |
234 | int snd_soc_register_platform(struct snd_soc_platform *platform); |
235 | void snd_soc_unregister_platform(struct snd_soc_platform *platform); |
236 | int snd_soc_register_codec(struct snd_soc_codec *codec); |
237 | void snd_soc_unregister_codec(struct snd_soc_codec *codec); |
238 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg); |
239 | int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, |
240 | int addr_bits, int data_bits, |
241 | enum snd_soc_control_type control); |
242 | |
243 | /* pcm <-> DAI connect */ |
244 | void snd_soc_free_pcms(struct snd_soc_device *socdev); |
245 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid); |
246 | |
247 | /* Utility functions to get clock rates from various things */ |
248 | int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); |
249 | int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); |
250 | int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots); |
251 | int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); |
252 | |
253 | /* set runtime hw params */ |
254 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, |
255 | const struct snd_pcm_hardware *hw); |
256 | |
257 | /* Jack reporting */ |
258 | int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type, |
259 | struct snd_soc_jack *jack); |
260 | void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); |
261 | int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, |
262 | struct snd_soc_jack_pin *pins); |
263 | #ifdef CONFIG_GPIOLIB |
264 | int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, |
265 | struct snd_soc_jack_gpio *gpios); |
266 | void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, |
267 | struct snd_soc_jack_gpio *gpios); |
268 | #endif |
269 | |
270 | /* codec register bit access */ |
271 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, |
272 | unsigned int mask, unsigned int value); |
273 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, |
274 | unsigned short reg, unsigned int mask, |
275 | unsigned int value); |
276 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, |
277 | unsigned int mask, unsigned int value); |
278 | |
279 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, |
280 | struct snd_ac97_bus_ops *ops, int num); |
281 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); |
282 | |
283 | /* |
284 | *Controls |
285 | */ |
286 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, |
287 | void *data, char *long_name); |
288 | int snd_soc_add_controls(struct snd_soc_codec *codec, |
289 | const struct snd_kcontrol_new *controls, int num_controls); |
290 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, |
291 | struct snd_ctl_elem_info *uinfo); |
292 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, |
293 | struct snd_ctl_elem_info *uinfo); |
294 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, |
295 | struct snd_ctl_elem_value *ucontrol); |
296 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, |
297 | struct snd_ctl_elem_value *ucontrol); |
298 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, |
299 | struct snd_ctl_elem_value *ucontrol); |
300 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, |
301 | struct snd_ctl_elem_value *ucontrol); |
302 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, |
303 | struct snd_ctl_elem_info *uinfo); |
304 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, |
305 | struct snd_ctl_elem_info *uinfo); |
306 | #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info |
307 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, |
308 | struct snd_ctl_elem_value *ucontrol); |
309 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, |
310 | struct snd_ctl_elem_value *ucontrol); |
311 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, |
312 | struct snd_ctl_elem_info *uinfo); |
313 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, |
314 | struct snd_ctl_elem_value *ucontrol); |
315 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, |
316 | struct snd_ctl_elem_value *ucontrol); |
317 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, |
318 | struct snd_ctl_elem_info *uinfo); |
319 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, |
320 | struct snd_ctl_elem_value *ucontrol); |
321 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, |
322 | struct snd_ctl_elem_value *ucontrol); |
323 | |
324 | /** |
325 | * struct snd_soc_jack_pin - Describes a pin to update based on jack detection |
326 | * |
327 | * @pin: name of the pin to update |
328 | * @mask: bits to check for in reported jack status |
329 | * @invert: if non-zero then pin is enabled when status is not reported |
330 | */ |
331 | struct snd_soc_jack_pin { |
332 | struct list_head list; |
333 | const char *pin; |
334 | int mask; |
335 | bool invert; |
336 | }; |
337 | |
338 | /** |
339 | * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection |
340 | * |
341 | * @gpio: gpio number |
342 | * @name: gpio name |
343 | * @report: value to report when jack detected |
344 | * @invert: report presence in low state |
345 | * @debouce_time: debouce time in ms |
346 | */ |
347 | #ifdef CONFIG_GPIOLIB |
348 | struct snd_soc_jack_gpio { |
349 | unsigned int gpio; |
350 | const char *name; |
351 | int report; |
352 | int invert; |
353 | int debounce_time; |
354 | struct snd_soc_jack *jack; |
355 | struct work_struct work; |
356 | |
357 | int (*jack_status_check)(void); |
358 | }; |
359 | #endif |
360 | |
361 | struct snd_soc_jack { |
362 | struct snd_jack *jack; |
363 | struct snd_soc_card *card; |
364 | struct list_head pins; |
365 | int status; |
366 | }; |
367 | |
368 | /* SoC PCM stream information */ |
369 | struct snd_soc_pcm_stream { |
370 | char *stream_name; |
371 | u64 formats; /* SNDRV_PCM_FMTBIT_* */ |
372 | unsigned int rates; /* SNDRV_PCM_RATE_* */ |
373 | unsigned int rate_min; /* min rate */ |
374 | unsigned int rate_max; /* max rate */ |
375 | unsigned int channels_min; /* min channels */ |
376 | unsigned int channels_max; /* max channels */ |
377 | unsigned int active:1; /* stream is in use */ |
378 | void *dma_data; /* used by platform code */ |
379 | }; |
380 | |
381 | /* SoC audio ops */ |
382 | struct snd_soc_ops { |
383 | int (*startup)(struct snd_pcm_substream *); |
384 | void (*shutdown)(struct snd_pcm_substream *); |
385 | int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); |
386 | int (*hw_free)(struct snd_pcm_substream *); |
387 | int (*prepare)(struct snd_pcm_substream *); |
388 | int (*trigger)(struct snd_pcm_substream *, int); |
389 | }; |
390 | |
391 | /* SoC Audio Codec */ |
392 | struct snd_soc_codec { |
393 | char *name; |
394 | struct module *owner; |
395 | struct mutex mutex; |
396 | struct device *dev; |
397 | struct snd_soc_device *socdev; |
398 | |
399 | struct list_head list; |
400 | |
401 | /* callbacks */ |
402 | int (*set_bias_level)(struct snd_soc_codec *, |
403 | enum snd_soc_bias_level level); |
404 | |
405 | /* runtime */ |
406 | struct snd_card *card; |
407 | struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ |
408 | unsigned int active; |
409 | unsigned int pcm_devs; |
410 | void *private_data; |
411 | |
412 | /* codec IO */ |
413 | void *control_data; /* codec control (i2c/3wire) data */ |
414 | unsigned int (*read)(struct snd_soc_codec *, unsigned int); |
415 | int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); |
416 | int (*display_register)(struct snd_soc_codec *, char *, |
417 | size_t, unsigned int); |
418 | int (*volatile_register)(unsigned int); |
419 | int (*readable_register)(unsigned int); |
420 | hw_write_t hw_write; |
421 | unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int); |
422 | void *reg_cache; |
423 | short reg_cache_size; |
424 | short reg_cache_step; |
425 | |
426 | unsigned int idle_bias_off:1; /* Use BIAS_OFF instead of STANDBY */ |
427 | unsigned int cache_only:1; /* Suppress writes to hardware */ |
428 | unsigned int cache_sync:1; /* Cache needs to be synced to hardware */ |
429 | |
430 | /* dapm */ |
431 | u32 pop_time; |
432 | struct list_head dapm_widgets; |
433 | struct list_head dapm_paths; |
434 | enum snd_soc_bias_level bias_level; |
435 | enum snd_soc_bias_level suspend_bias_level; |
436 | struct delayed_work delayed_work; |
437 | |
438 | /* codec DAI's */ |
439 | struct snd_soc_dai *dai; |
440 | unsigned int num_dai; |
441 | |
442 | #ifdef CONFIG_DEBUG_FS |
443 | struct dentry *debugfs_codec_root; |
444 | struct dentry *debugfs_reg; |
445 | struct dentry *debugfs_pop_time; |
446 | struct dentry *debugfs_dapm; |
447 | #endif |
448 | }; |
449 | |
450 | /* codec device */ |
451 | struct snd_soc_codec_device { |
452 | int (*probe)(struct platform_device *pdev); |
453 | int (*remove)(struct platform_device *pdev); |
454 | int (*suspend)(struct platform_device *pdev, pm_message_t state); |
455 | int (*resume)(struct platform_device *pdev); |
456 | }; |
457 | |
458 | /* SoC platform interface */ |
459 | struct snd_soc_platform { |
460 | char *name; |
461 | struct list_head list; |
462 | |
463 | int (*probe)(struct platform_device *pdev); |
464 | int (*remove)(struct platform_device *pdev); |
465 | int (*suspend)(struct snd_soc_dai *dai); |
466 | int (*resume)(struct snd_soc_dai *dai); |
467 | |
468 | /* pcm creation and destruction */ |
469 | int (*pcm_new)(struct snd_card *, struct snd_soc_dai *, |
470 | struct snd_pcm *); |
471 | void (*pcm_free)(struct snd_pcm *); |
472 | |
473 | /* platform stream ops */ |
474 | struct snd_pcm_ops *pcm_ops; |
475 | }; |
476 | |
477 | /* SoC machine DAI configuration, glues a codec and cpu DAI together */ |
478 | struct snd_soc_dai_link { |
479 | char *name; /* Codec name */ |
480 | char *stream_name; /* Stream name */ |
481 | |
482 | /* DAI */ |
483 | struct snd_soc_dai *codec_dai; |
484 | struct snd_soc_dai *cpu_dai; |
485 | |
486 | /* machine stream operations */ |
487 | struct snd_soc_ops *ops; |
488 | |
489 | /* codec/machine specific init - e.g. add machine controls */ |
490 | int (*init)(struct snd_soc_codec *codec); |
491 | |
492 | /* Symmetry requirements */ |
493 | unsigned int symmetric_rates:1; |
494 | |
495 | /* Symmetry data - only valid if symmetry is being enforced */ |
496 | unsigned int rate; |
497 | |
498 | /* DAI pcm */ |
499 | struct snd_pcm *pcm; |
500 | }; |
501 | |
502 | /* SoC card */ |
503 | struct snd_soc_card { |
504 | char *name; |
505 | struct device *dev; |
506 | |
507 | struct list_head list; |
508 | |
509 | int instantiated; |
510 | |
511 | int (*probe)(struct platform_device *pdev); |
512 | int (*remove)(struct platform_device *pdev); |
513 | |
514 | /* the pre and post PM functions are used to do any PM work before and |
515 | * after the codec and DAI's do any PM work. */ |
516 | int (*suspend_pre)(struct platform_device *pdev, pm_message_t state); |
517 | int (*suspend_post)(struct platform_device *pdev, pm_message_t state); |
518 | int (*resume_pre)(struct platform_device *pdev); |
519 | int (*resume_post)(struct platform_device *pdev); |
520 | |
521 | /* callbacks */ |
522 | int (*set_bias_level)(struct snd_soc_card *, |
523 | enum snd_soc_bias_level level); |
524 | |
525 | long pmdown_time; |
526 | |
527 | /* CPU <--> Codec DAI links */ |
528 | struct snd_soc_dai_link *dai_link; |
529 | int num_links; |
530 | |
531 | struct snd_soc_device *socdev; |
532 | |
533 | struct snd_soc_codec *codec; |
534 | |
535 | struct snd_soc_platform *platform; |
536 | struct delayed_work delayed_work; |
537 | struct work_struct deferred_resume_work; |
538 | }; |
539 | |
540 | /* SoC Device - the audio subsystem */ |
541 | struct snd_soc_device { |
542 | struct device *dev; |
543 | struct snd_soc_card *card; |
544 | struct snd_soc_codec_device *codec_dev; |
545 | void *codec_data; |
546 | }; |
547 | |
548 | /* runtime channel data */ |
549 | struct snd_soc_pcm_runtime { |
550 | struct snd_soc_dai_link *dai; |
551 | struct snd_soc_device *socdev; |
552 | }; |
553 | |
554 | /* mixer control */ |
555 | struct soc_mixer_control { |
556 | int min, max; |
557 | unsigned int reg, rreg, shift, rshift, invert; |
558 | }; |
559 | |
560 | /* enumerated kcontrol */ |
561 | struct soc_enum { |
562 | unsigned short reg; |
563 | unsigned short reg2; |
564 | unsigned char shift_l; |
565 | unsigned char shift_r; |
566 | unsigned int max; |
567 | unsigned int mask; |
568 | const char **texts; |
569 | const unsigned int *values; |
570 | void *dapm; |
571 | }; |
572 | |
573 | /* codec IO */ |
574 | static inline unsigned int snd_soc_read(struct snd_soc_codec *codec, |
575 | unsigned int reg) |
576 | { |
577 | return codec->read(codec, reg); |
578 | } |
579 | |
580 | static inline unsigned int snd_soc_write(struct snd_soc_codec *codec, |
581 | unsigned int reg, unsigned int val) |
582 | { |
583 | return codec->write(codec, reg, val); |
584 | } |
585 | |
586 | #include <sound/soc-dai.h> |
587 | |
588 | #endif |
589 |
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