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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> | |
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 | * Bias levels | |
173 | * | |
174 | * @ON: Bias is fully on for audio playback and capture operations. | |
175 | * @PREPARE: Prepare for audio operations. Called before DAPM switching for | |
176 | * stream start and stop operations. | |
177 | * @STANDBY: Low power standby state when no playback/capture operations are | |
178 | * in progress. NOTE: The transition time between STANDBY and ON | |
179 | * should be as fast as possible and no longer than 10ms. | |
180 | * @OFF: Power Off. No restrictions on transition times. | |
181 | */ | |
182 | enum snd_soc_bias_level { | |
183 | SND_SOC_BIAS_ON, | |
184 | SND_SOC_BIAS_PREPARE, | |
185 | SND_SOC_BIAS_STANDBY, | |
186 | SND_SOC_BIAS_OFF, | |
187 | }; | |
188 | ||
189 | struct snd_jack; | |
190 | struct snd_soc_card; | |
191 | struct snd_soc_device; | |
192 | struct snd_soc_pcm_stream; | |
193 | struct snd_soc_ops; | |
194 | struct snd_soc_dai_mode; | |
195 | struct snd_soc_pcm_runtime; | |
196 | struct snd_soc_dai; | |
197 | struct snd_soc_platform; | |
198 | struct snd_soc_codec; | |
199 | struct soc_enum; | |
200 | struct snd_soc_ac97_ops; | |
201 | struct snd_soc_jack; | |
202 | struct snd_soc_jack_pin; | |
203 | #ifdef CONFIG_GPIOLIB | |
204 | struct snd_soc_jack_gpio; | |
205 | #endif | |
206 | ||
207 | typedef int (*hw_write_t)(void *,const char* ,int); | |
208 | ||
209 | extern struct snd_ac97_bus_ops soc_ac97_ops; | |
210 | ||
211 | enum snd_soc_control_type { | |
212 | SND_SOC_CUSTOM, | |
213 | SND_SOC_I2C, | |
214 | SND_SOC_SPI, | |
215 | }; | |
216 | ||
217 | int snd_soc_register_platform(struct snd_soc_platform *platform); | |
218 | void snd_soc_unregister_platform(struct snd_soc_platform *platform); | |
219 | int snd_soc_register_codec(struct snd_soc_codec *codec); | |
220 | void snd_soc_unregister_codec(struct snd_soc_codec *codec); | |
221 | int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg); | |
222 | int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, | |
223 | int addr_bits, int data_bits, | |
224 | enum snd_soc_control_type control); | |
225 | ||
226 | /* pcm <-> DAI connect */ | |
227 | void snd_soc_free_pcms(struct snd_soc_device *socdev); | |
228 | int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid); | |
229 | ||
230 | /* Utility functions to get clock rates from various things */ | |
231 | int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); | |
232 | int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); | |
233 | int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots); | |
234 | int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); | |
235 | ||
236 | /* set runtime hw params */ | |
237 | int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, | |
238 | const struct snd_pcm_hardware *hw); | |
239 | ||
240 | /* Jack reporting */ | |
241 | int snd_soc_jack_new(struct snd_soc_card *card, const char *id, int type, | |
242 | struct snd_soc_jack *jack); | |
243 | void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); | |
244 | int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, | |
245 | struct snd_soc_jack_pin *pins); | |
246 | #ifdef CONFIG_GPIOLIB | |
247 | int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, | |
248 | struct snd_soc_jack_gpio *gpios); | |
249 | void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, | |
250 | struct snd_soc_jack_gpio *gpios); | |
251 | #endif | |
252 | ||
253 | /* codec register bit access */ | |
254 | int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, | |
255 | unsigned int mask, unsigned int value); | |
256 | int snd_soc_update_bits_locked(struct snd_soc_codec *codec, | |
257 | unsigned short reg, unsigned int mask, | |
258 | unsigned int value); | |
259 | int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, | |
260 | unsigned int mask, unsigned int value); | |
261 | ||
262 | int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, | |
263 | struct snd_ac97_bus_ops *ops, int num); | |
264 | void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); | |
265 | ||
266 | /* | |
267 | *Controls | |
268 | */ | |
269 | struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, | |
270 | void *data, char *long_name); | |
271 | int snd_soc_add_controls(struct snd_soc_codec *codec, | |
272 | const struct snd_kcontrol_new *controls, int num_controls); | |
273 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, | |
274 | struct snd_ctl_elem_info *uinfo); | |
275 | int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, | |
276 | struct snd_ctl_elem_info *uinfo); | |
277 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, | |
278 | struct snd_ctl_elem_value *ucontrol); | |
279 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
280 | struct snd_ctl_elem_value *ucontrol); | |
281 | int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, | |
282 | struct snd_ctl_elem_value *ucontrol); | |
283 | int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, | |
284 | struct snd_ctl_elem_value *ucontrol); | |
285 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
286 | struct snd_ctl_elem_info *uinfo); | |
287 | int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, | |
288 | struct snd_ctl_elem_info *uinfo); | |
289 | #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info | |
290 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
291 | struct snd_ctl_elem_value *ucontrol); | |
292 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
293 | struct snd_ctl_elem_value *ucontrol); | |
294 | int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, | |
295 | struct snd_ctl_elem_info *uinfo); | |
296 | int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, | |
297 | struct snd_ctl_elem_value *ucontrol); | |
298 | int snd_soc_put_volsw_2r(struct snd_kcontrol *kcontrol, | |
299 | struct snd_ctl_elem_value *ucontrol); | |
300 | int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, | |
301 | struct snd_ctl_elem_info *uinfo); | |
302 | int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, | |
303 | struct snd_ctl_elem_value *ucontrol); | |
304 | int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, | |
305 | struct snd_ctl_elem_value *ucontrol); | |
306 | ||
307 | /** | |
308 | * struct snd_soc_jack_pin - Describes a pin to update based on jack detection | |
309 | * | |
310 | * @pin: name of the pin to update | |
311 | * @mask: bits to check for in reported jack status | |
312 | * @invert: if non-zero then pin is enabled when status is not reported | |
313 | */ | |
314 | struct snd_soc_jack_pin { | |
315 | struct list_head list; | |
316 | const char *pin; | |
317 | int mask; | |
318 | bool invert; | |
319 | }; | |
320 | ||
321 | /** | |
322 | * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection | |
323 | * | |
324 | * @gpio: gpio number | |
325 | * @name: gpio name | |
326 | * @report: value to report when jack detected | |
327 | * @invert: report presence in low state | |
328 | * @debouce_time: debouce time in ms | |
329 | */ | |
330 | #ifdef CONFIG_GPIOLIB | |
331 | struct snd_soc_jack_gpio { | |
332 | unsigned int gpio; | |
333 | const char *name; | |
334 | int report; | |
335 | int invert; | |
336 | int debounce_time; | |
337 | struct snd_soc_jack *jack; | |
338 | struct work_struct work; | |
339 | ||
340 | int (*jack_status_check)(void); | |
341 | }; | |
342 | #endif | |
343 | ||
344 | struct snd_soc_jack { | |
345 | struct snd_jack *jack; | |
346 | struct snd_soc_card *card; | |
347 | struct list_head pins; | |
348 | int status; | |
349 | }; | |
350 | ||
351 | /* SoC PCM stream information */ | |
352 | struct snd_soc_pcm_stream { | |
353 | char *stream_name; | |
354 | u64 formats; /* SNDRV_PCM_FMTBIT_* */ | |
355 | unsigned int rates; /* SNDRV_PCM_RATE_* */ | |
356 | unsigned int rate_min; /* min rate */ | |
357 | unsigned int rate_max; /* max rate */ | |
358 | unsigned int channels_min; /* min channels */ | |
359 | unsigned int channels_max; /* max channels */ | |
360 | unsigned int active:1; /* stream is in use */ | |
361 | }; | |
362 | ||
363 | /* SoC audio ops */ | |
364 | struct snd_soc_ops { | |
365 | int (*startup)(struct snd_pcm_substream *); | |
366 | void (*shutdown)(struct snd_pcm_substream *); | |
367 | int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); | |
368 | int (*hw_free)(struct snd_pcm_substream *); | |
369 | int (*prepare)(struct snd_pcm_substream *); | |
370 | int (*trigger)(struct snd_pcm_substream *, int); | |
371 | }; | |
372 | ||
373 | /* SoC Audio Codec */ | |
374 | struct snd_soc_codec { | |
375 | char *name; | |
376 | struct module *owner; | |
377 | struct mutex mutex; | |
378 | struct device *dev; | |
379 | struct snd_soc_device *socdev; | |
380 | ||
381 | struct list_head list; | |
382 | ||
383 | /* callbacks */ | |
384 | int (*set_bias_level)(struct snd_soc_codec *, | |
385 | enum snd_soc_bias_level level); | |
386 | ||
387 | /* runtime */ | |
388 | struct snd_card *card; | |
389 | struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ | |
390 | unsigned int active; | |
391 | unsigned int pcm_devs; | |
392 | void *private_data; | |
393 | ||
394 | /* codec IO */ | |
395 | void *control_data; /* codec control (i2c/3wire) data */ | |
396 | unsigned int (*read)(struct snd_soc_codec *, unsigned int); | |
397 | int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); | |
398 | int (*display_register)(struct snd_soc_codec *, char *, | |
399 | size_t, unsigned int); | |
400 | int (*volatile_register)(unsigned int); | |
401 | int (*readable_register)(unsigned int); | |
402 | hw_write_t hw_write; | |
403 | unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int); | |
404 | void *reg_cache; | |
405 | short reg_cache_size; | |
406 | short reg_cache_step; | |
407 | ||
408 | /* dapm */ | |
409 | u32 pop_time; | |
410 | struct list_head dapm_widgets; | |
411 | struct list_head dapm_paths; | |
412 | enum snd_soc_bias_level bias_level; | |
413 | enum snd_soc_bias_level suspend_bias_level; | |
414 | struct delayed_work delayed_work; | |
415 | ||
416 | /* codec DAI's */ | |
417 | struct snd_soc_dai *dai; | |
418 | unsigned int num_dai; | |
419 | ||
420 | #ifdef CONFIG_DEBUG_FS | |
421 | struct dentry *debugfs_codec_root; | |
422 | struct dentry *debugfs_reg; | |
423 | struct dentry *debugfs_pop_time; | |
424 | struct dentry *debugfs_dapm; | |
425 | #endif | |
426 | }; | |
427 | ||
428 | /* codec device */ | |
429 | struct snd_soc_codec_device { | |
430 | int (*probe)(struct platform_device *pdev); | |
431 | int (*remove)(struct platform_device *pdev); | |
432 | int (*suspend)(struct platform_device *pdev, pm_message_t state); | |
433 | int (*resume)(struct platform_device *pdev); | |
434 | }; | |
435 | ||
436 | /* SoC platform interface */ | |
437 | struct snd_soc_platform { | |
438 | char *name; | |
439 | struct list_head list; | |
440 | ||
441 | int (*probe)(struct platform_device *pdev); | |
442 | int (*remove)(struct platform_device *pdev); | |
443 | int (*suspend)(struct snd_soc_dai *dai); | |
444 | int (*resume)(struct snd_soc_dai *dai); | |
445 | ||
446 | /* pcm creation and destruction */ | |
447 | int (*pcm_new)(struct snd_card *, struct snd_soc_dai *, | |
448 | struct snd_pcm *); | |
449 | void (*pcm_free)(struct snd_pcm *); | |
450 | ||
451 | /* platform stream ops */ | |
452 | struct snd_pcm_ops *pcm_ops; | |
453 | }; | |
454 | ||
455 | /* SoC machine DAI configuration, glues a codec and cpu DAI together */ | |
456 | struct snd_soc_dai_link { | |
457 | char *name; /* Codec name */ | |
458 | char *stream_name; /* Stream name */ | |
459 | ||
460 | /* DAI */ | |
461 | struct snd_soc_dai *codec_dai; | |
462 | struct snd_soc_dai *cpu_dai; | |
463 | ||
464 | /* machine stream operations */ | |
465 | struct snd_soc_ops *ops; | |
466 | ||
467 | /* codec/machine specific init - e.g. add machine controls */ | |
468 | int (*init)(struct snd_soc_codec *codec); | |
469 | ||
470 | /* Symmetry requirements */ | |
471 | unsigned int symmetric_rates:1; | |
472 | ||
473 | /* Symmetry data - only valid if symmetry is being enforced */ | |
474 | unsigned int rate; | |
475 | ||
476 | /* DAI pcm */ | |
477 | struct snd_pcm *pcm; | |
478 | }; | |
479 | ||
480 | /* SoC card */ | |
481 | struct snd_soc_card { | |
482 | char *name; | |
483 | struct device *dev; | |
484 | ||
485 | struct list_head list; | |
486 | ||
487 | int instantiated; | |
488 | ||
489 | int (*probe)(struct platform_device *pdev); | |
490 | int (*remove)(struct platform_device *pdev); | |
491 | ||
492 | /* the pre and post PM functions are used to do any PM work before and | |
493 | * after the codec and DAI's do any PM work. */ | |
494 | int (*suspend_pre)(struct platform_device *pdev, pm_message_t state); | |
495 | int (*suspend_post)(struct platform_device *pdev, pm_message_t state); | |
496 | int (*resume_pre)(struct platform_device *pdev); | |
497 | int (*resume_post)(struct platform_device *pdev); | |
498 | ||
499 | /* callbacks */ | |
500 | int (*set_bias_level)(struct snd_soc_card *, | |
501 | enum snd_soc_bias_level level); | |
502 | ||
503 | /* CPU <--> Codec DAI links */ | |
504 | struct snd_soc_dai_link *dai_link; | |
505 | int num_links; | |
506 | ||
507 | struct snd_soc_device *socdev; | |
508 | ||
509 | struct snd_soc_codec *codec; | |
510 | ||
511 | struct snd_soc_platform *platform; | |
512 | struct delayed_work delayed_work; | |
513 | struct work_struct deferred_resume_work; | |
514 | }; | |
515 | ||
516 | /* SoC Device - the audio subsystem */ | |
517 | struct snd_soc_device { | |
518 | struct device *dev; | |
519 | struct snd_soc_card *card; | |
520 | struct snd_soc_codec_device *codec_dev; | |
521 | void *codec_data; | |
522 | }; | |
523 | ||
524 | /* runtime channel data */ | |
525 | struct snd_soc_pcm_runtime { | |
526 | struct snd_soc_dai_link *dai; | |
527 | struct snd_soc_device *socdev; | |
528 | }; | |
529 | ||
530 | /* mixer control */ | |
531 | struct soc_mixer_control { | |
532 | int min, max; | |
533 | unsigned int reg, rreg, shift, rshift, invert; | |
534 | }; | |
535 | ||
536 | /* enumerated kcontrol */ | |
537 | struct soc_enum { | |
538 | unsigned short reg; | |
539 | unsigned short reg2; | |
540 | unsigned char shift_l; | |
541 | unsigned char shift_r; | |
542 | unsigned int max; | |
543 | unsigned int mask; | |
544 | const char **texts; | |
545 | const unsigned int *values; | |
546 | void *dapm; | |
547 | }; | |
548 | ||
549 | /* codec IO */ | |
550 | static inline unsigned int snd_soc_read(struct snd_soc_codec *codec, | |
551 | unsigned int reg) | |
552 | { | |
553 | return codec->read(codec, reg); | |
554 | } | |
555 | ||
556 | static inline unsigned int snd_soc_write(struct snd_soc_codec *codec, | |
557 | unsigned int reg, unsigned int val) | |
558 | { | |
559 | return codec->write(codec, reg, val); | |
560 | } | |
561 | ||
562 | #include <sound/soc-dai.h> | |
563 | ||
564 | #endif |