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TOMOYO Linux Cross Reference
Linux/include/sound/soc.h

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  1 /* SPDX-License-Identifier: GPL-2.0
  2  *
  3  * linux/sound/soc.h -- ALSA SoC Layer
  4  *
  5  * Author:      Liam Girdwood
  6  * Created:     Aug 11th 2005
  7  * Copyright:   Wolfson Microelectronics. PLC.
  8  */
  9 
 10 #ifndef __LINUX_SND_SOC_H
 11 #define __LINUX_SND_SOC_H
 12 
 13 #include <linux/of.h>
 14 #include <linux/platform_device.h>
 15 #include <linux/types.h>
 16 #include <linux/notifier.h>
 17 #include <linux/workqueue.h>
 18 #include <linux/interrupt.h>
 19 #include <linux/kernel.h>
 20 #include <linux/regmap.h>
 21 #include <linux/log2.h>
 22 #include <sound/core.h>
 23 #include <sound/pcm.h>
 24 #include <sound/compress_driver.h>
 25 #include <sound/control.h>
 26 #include <sound/ac97_codec.h>
 27 
 28 /*
 29  * Convenience kcontrol builders
 30  */
 31 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \
 32         ((unsigned long)&(struct soc_mixer_control) \
 33         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
 34         .rshift = shift_right, .max = xmax, .platform_max = xmax, \
 35         .invert = xinvert, .autodisable = xautodisable})
 36 #define SOC_DOUBLE_S_VALUE(xreg, shift_left, shift_right, xmin, xmax, xsign_bit, xinvert, xautodisable) \
 37         ((unsigned long)&(struct soc_mixer_control) \
 38         {.reg = xreg, .rreg = xreg, .shift = shift_left, \
 39         .rshift = shift_right, .min = xmin, .max = xmax, .platform_max = xmax, \
 40         .sign_bit = xsign_bit, .invert = xinvert, .autodisable = xautodisable})
 41 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \
 42         SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable)
 43 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \
 44         ((unsigned long)&(struct soc_mixer_control) \
 45         {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert})
 46 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \
 47         ((unsigned long)&(struct soc_mixer_control) \
 48         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
 49         .max = xmax, .platform_max = xmax, .invert = xinvert})
 50 #define SOC_DOUBLE_R_S_VALUE(xlreg, xrreg, xshift, xmin, xmax, xsign_bit, xinvert) \
 51         ((unsigned long)&(struct soc_mixer_control) \
 52         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
 53         .max = xmax, .min = xmin, .platform_max = xmax, .sign_bit = xsign_bit, \
 54         .invert = xinvert})
 55 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \
 56         ((unsigned long)&(struct soc_mixer_control) \
 57         {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \
 58         .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert})
 59 #define SOC_SINGLE(xname, reg, shift, max, invert) \
 60 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 61         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
 62         .put = snd_soc_put_volsw, \
 63         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
 64 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \
 65 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 66         .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \
 67         .put = snd_soc_put_volsw_range, \
 68         .private_value = (unsigned long)&(struct soc_mixer_control) \
 69                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
 70                  .rshift = xshift,  .min = xmin, .max = xmax, \
 71                  .platform_max = xmax, .invert = xinvert} }
 72 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
 73 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 74         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 75                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 76         .tlv.p = (tlv_array), \
 77         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
 78         .put = snd_soc_put_volsw, \
 79         .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
 80 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \
 81 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 82         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
 83         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
 84         .tlv.p  = (tlv_array),\
 85         .info = snd_soc_info_volsw_sx, \
 86         .get = snd_soc_get_volsw_sx,\
 87         .put = snd_soc_put_volsw_sx, \
 88         .private_value = (unsigned long)&(struct soc_mixer_control) \
 89                 {.reg = xreg, .rreg = xreg, \
 90                 .shift = xshift, .rshift = xshift, \
 91                 .max = xmax, .min = xmin} }
 92 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \
 93 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
 94         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
 95                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
 96         .tlv.p = (tlv_array), \
 97         .info = snd_soc_info_volsw_range, \
 98         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
 99         .private_value = (unsigned long)&(struct soc_mixer_control) \
100                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
101                  .rshift = xshift, .min = xmin, .max = xmax, \
102                  .platform_max = xmax, .invert = xinvert} }
103 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \
104 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
105         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \
106         .put = snd_soc_put_volsw, \
107         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
108                                           max, invert, 0) }
109 #define SOC_DOUBLE_STS(xname, reg, shift_left, shift_right, max, invert) \
110 {                                                                       \
111         .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),           \
112         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,           \
113         .access = SNDRV_CTL_ELEM_ACCESS_READ |                          \
114                 SNDRV_CTL_ELEM_ACCESS_VOLATILE,                         \
115         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
116                                           max, invert, 0) }
117 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \
118 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
119         .info = snd_soc_info_volsw, \
120         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
121         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
122                                             xmax, xinvert) }
123 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \
124                            xmax, xinvert)               \
125 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
126         .info = snd_soc_info_volsw_range, \
127         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
128         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
129                                             xshift, xmin, xmax, xinvert) }
130 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, 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, .get = snd_soc_get_volsw, \
136         .put = snd_soc_put_volsw, \
137         .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \
138                                           max, invert, 0) }
139 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, 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 = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
146         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
147                                             xmax, xinvert) }
148 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \
149                                xmax, xinvert, tlv_array)                \
150 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
151         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
152                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
153         .tlv.p = (tlv_array), \
154         .info = snd_soc_info_volsw_range, \
155         .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \
156         .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \
157                                             xshift, xmin, xmax, xinvert) }
158 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \
159 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
160         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
161         SNDRV_CTL_ELEM_ACCESS_READWRITE, \
162         .tlv.p  = (tlv_array), \
163         .info = snd_soc_info_volsw_sx, \
164         .get = snd_soc_get_volsw_sx, \
165         .put = snd_soc_put_volsw_sx, \
166         .private_value = (unsigned long)&(struct soc_mixer_control) \
167                 {.reg = xreg, .rreg = xrreg, \
168                 .shift = xshift, .rshift = xshift, \
169                 .max = xmax, .min = xmin} }
170 #define SOC_DOUBLE_R_S_TLV(xname, reg_left, reg_right, xshift, xmin, xmax, xsign_bit, xinvert, tlv_array) \
171 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
172         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
173                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
174         .tlv.p = (tlv_array), \
175         .info = snd_soc_info_volsw, \
176         .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \
177         .private_value = SOC_DOUBLE_R_S_VALUE(reg_left, reg_right, xshift, \
178                                             xmin, xmax, xsign_bit, xinvert) }
179 #define SOC_SINGLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
180 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
181         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
182                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
183         .tlv.p  = (tlv_array), \
184         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
185         .put = snd_soc_put_volsw, \
186         .private_value = (unsigned long)&(struct soc_mixer_control) \
187         {.reg = xreg, .rreg = xreg,  \
188          .min = xmin, .max = xmax, .platform_max = xmax, \
189         .sign_bit = 7,} }
190 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \
191 {       .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
192         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
193                   SNDRV_CTL_ELEM_ACCESS_READWRITE, \
194         .tlv.p  = (tlv_array), \
195         .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\
196         .put = snd_soc_put_volsw, \
197         .private_value = SOC_DOUBLE_S_VALUE(xreg, 0, 8, xmin, xmax, 7, 0, 0) }
198 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xitems, xtexts) \
199 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
200         .items = xitems, .texts = xtexts, \
201         .mask = xitems ? roundup_pow_of_two(xitems) - 1 : 0}
202 #define SOC_ENUM_SINGLE(xreg, xshift, xitems, xtexts) \
203         SOC_ENUM_DOUBLE(xreg, xshift, xshift, xitems, xtexts)
204 #define SOC_ENUM_SINGLE_EXT(xitems, xtexts) \
205 {       .items = xitems, .texts = xtexts }
206 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xitems, xtexts, xvalues) \
207 {       .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \
208         .mask = xmask, .items = xitems, .texts = xtexts, .values = xvalues}
209 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \
210         SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xitems, xtexts, xvalues)
211 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \
212 {       .reg = xreg, .shift_l = xshift, .shift_r = xshift, \
213         .mask = xmask, .items = xitems, .texts = xtexts, \
214         .values = xvalues, .autodisable = 1}
215 #define SOC_ENUM_SINGLE_VIRT(xitems, xtexts) \
216         SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, xitems, xtexts)
217 #define SOC_ENUM(xname, xenum) \
218 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
219         .info = snd_soc_info_enum_double, \
220         .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \
221         .private_value = (unsigned long)&xenum }
222 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\
223          xhandler_get, xhandler_put) \
224 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
225         .info = snd_soc_info_volsw, \
226         .get = xhandler_get, .put = xhandler_put, \
227         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
228 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\
229          xhandler_get, xhandler_put) \
230 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
231         .info = snd_soc_info_volsw, \
232         .get = xhandler_get, .put = xhandler_put, \
233         .private_value = \
234                 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) }
235 #define SOC_DOUBLE_R_EXT(xname, reg_left, reg_right, xshift, xmax, xinvert,\
236          xhandler_get, xhandler_put) \
237 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
238         .info = snd_soc_info_volsw, \
239         .get = xhandler_get, .put = xhandler_put, \
240         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
241                                             xmax, xinvert) }
242 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\
243          xhandler_get, xhandler_put, tlv_array) \
244 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
245         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
246                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
247         .tlv.p = (tlv_array), \
248         .info = snd_soc_info_volsw, \
249         .get = xhandler_get, .put = xhandler_put, \
250         .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) }
251 #define SOC_SINGLE_RANGE_EXT_TLV(xname, xreg, xshift, xmin, xmax, xinvert, \
252                                  xhandler_get, xhandler_put, tlv_array) \
253 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
254         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
255                  SNDRV_CTL_ELEM_ACCESS_READWRITE,\
256         .tlv.p = (tlv_array), \
257         .info = snd_soc_info_volsw_range, \
258         .get = xhandler_get, .put = xhandler_put, \
259         .private_value = (unsigned long)&(struct soc_mixer_control) \
260                 {.reg = xreg, .rreg = xreg, .shift = xshift, \
261                  .rshift = xshift, .min = xmin, .max = xmax, \
262                  .platform_max = xmax, .invert = xinvert} }
263 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\
264          xhandler_get, xhandler_put, tlv_array) \
265 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
266         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
267                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
268         .tlv.p = (tlv_array), \
269         .info = snd_soc_info_volsw, \
270         .get = xhandler_get, .put = xhandler_put, \
271         .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \
272                                           xmax, xinvert, 0) }
273 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\
274          xhandler_get, xhandler_put, tlv_array) \
275 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
276         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
277                  SNDRV_CTL_ELEM_ACCESS_READWRITE, \
278         .tlv.p = (tlv_array), \
279         .info = snd_soc_info_volsw, \
280         .get = xhandler_get, .put = xhandler_put, \
281         .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \
282                                             xmax, xinvert) }
283 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \
284 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
285         .info = snd_soc_info_bool_ext, \
286         .get = xhandler_get, .put = xhandler_put, \
287         .private_value = xdata }
288 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
289 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
290         .info = snd_soc_info_enum_double, \
291         .get = xhandler_get, .put = xhandler_put, \
292         .private_value = (unsigned long)&xenum }
293 #define SOC_VALUE_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \
294         SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put)
295 
296 #define SND_SOC_BYTES(xname, xbase, xregs)                    \
297 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
298         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
299         .put = snd_soc_bytes_put, .private_value =            \
300                 ((unsigned long)&(struct soc_bytes)           \
301                 {.base = xbase, .num_regs = xregs }) }
302 
303 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask)        \
304 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,   \
305         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \
306         .put = snd_soc_bytes_put, .private_value =            \
307                 ((unsigned long)&(struct soc_bytes)           \
308                 {.base = xbase, .num_regs = xregs,            \
309                  .mask = xmask }) }
310 
311 /*
312  * SND_SOC_BYTES_EXT is deprecated, please USE SND_SOC_BYTES_TLV instead
313  */
314 #define SND_SOC_BYTES_EXT(xname, xcount, xhandler_get, xhandler_put) \
315 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
316         .info = snd_soc_bytes_info_ext, \
317         .get = xhandler_get, .put = xhandler_put, \
318         .private_value = (unsigned long)&(struct soc_bytes_ext) \
319                 {.max = xcount} }
320 #define SND_SOC_BYTES_TLV(xname, xcount, xhandler_get, xhandler_put) \
321 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
322         .access = SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE | \
323                   SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \
324         .tlv.c = (snd_soc_bytes_tlv_callback), \
325         .info = snd_soc_bytes_info_ext, \
326         .private_value = (unsigned long)&(struct soc_bytes_ext) \
327                 {.max = xcount, .get = xhandler_get, .put = xhandler_put, } }
328 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \
329                 xmin, xmax, xinvert) \
330 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
331         .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \
332         .put = snd_soc_put_xr_sx, \
333         .private_value = (unsigned long)&(struct soc_mreg_control) \
334                 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \
335                 .invert = xinvert, .min = xmin, .max = xmax} }
336 
337 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \
338         SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \
339                 snd_soc_get_strobe, snd_soc_put_strobe)
340 
341 /*
342  * Simplified versions of above macros, declaring a struct and calculating
343  * ARRAY_SIZE internally
344  */
345 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \
346         const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
347                                                 ARRAY_SIZE(xtexts), xtexts)
348 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \
349         SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts)
350 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \
351         const struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts)
352 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \
353         const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \
354                                                         ARRAY_SIZE(xtexts), xtexts, xvalues)
355 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
356         SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues)
357 
358 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \
359         const struct soc_enum name = SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, \
360                 xshift, xmask, ARRAY_SIZE(xtexts), xtexts, xvalues)
361 
362 #define SOC_ENUM_SINGLE_VIRT_DECL(name, xtexts) \
363         const struct soc_enum name = SOC_ENUM_SINGLE_VIRT(ARRAY_SIZE(xtexts), xtexts)
364 
365 /*
366  * Component probe and remove ordering levels for components with runtime
367  * dependencies.
368  */
369 #define SND_SOC_COMP_ORDER_FIRST                -2
370 #define SND_SOC_COMP_ORDER_EARLY                -1
371 #define SND_SOC_COMP_ORDER_NORMAL               0
372 #define SND_SOC_COMP_ORDER_LATE         1
373 #define SND_SOC_COMP_ORDER_LAST         2
374 
375 #define for_each_comp_order(order)              \
376         for (order  = SND_SOC_COMP_ORDER_FIRST; \
377              order <= SND_SOC_COMP_ORDER_LAST;  \
378              order++)
379 
380 /*
381  * Bias levels
382  *
383  * @ON:      Bias is fully on for audio playback and capture operations.
384  * @PREPARE: Prepare for audio operations. Called before DAPM switching for
385  *           stream start and stop operations.
386  * @STANDBY: Low power standby state when no playback/capture operations are
387  *           in progress. NOTE: The transition time between STANDBY and ON
388  *           should be as fast as possible and no longer than 10ms.
389  * @OFF:     Power Off. No restrictions on transition times.
390  */
391 enum snd_soc_bias_level {
392         SND_SOC_BIAS_OFF = 0,
393         SND_SOC_BIAS_STANDBY = 1,
394         SND_SOC_BIAS_PREPARE = 2,
395         SND_SOC_BIAS_ON = 3,
396 };
397 
398 struct device_node;
399 struct snd_jack;
400 struct snd_soc_card;
401 struct snd_soc_pcm_stream;
402 struct snd_soc_ops;
403 struct snd_soc_pcm_runtime;
404 struct snd_soc_dai;
405 struct snd_soc_dai_driver;
406 struct snd_soc_dai_link;
407 struct snd_soc_component;
408 struct snd_soc_component_driver;
409 struct soc_enum;
410 struct snd_soc_jack;
411 struct snd_soc_jack_zone;
412 struct snd_soc_jack_pin;
413 #include <sound/soc-dapm.h>
414 #include <sound/soc-dpcm.h>
415 #include <sound/soc-topology.h>
416 
417 struct snd_soc_jack_gpio;
418 
419 typedef int (*hw_write_t)(void *,const char* ,int);
420 
421 enum snd_soc_pcm_subclass {
422         SND_SOC_PCM_CLASS_PCM   = 0,
423         SND_SOC_PCM_CLASS_BE    = 1,
424 };
425 
426 enum snd_soc_card_subclass {
427         SND_SOC_CARD_CLASS_INIT         = 0,
428         SND_SOC_CARD_CLASS_RUNTIME      = 1,
429 };
430 
431 int snd_soc_register_card(struct snd_soc_card *card);
432 int snd_soc_unregister_card(struct snd_soc_card *card);
433 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
434 #ifdef CONFIG_PM_SLEEP
435 int snd_soc_suspend(struct device *dev);
436 int snd_soc_resume(struct device *dev);
437 #else
438 static inline int snd_soc_suspend(struct device *dev)
439 {
440         return 0;
441 }
442 
443 static inline int snd_soc_resume(struct device *dev)
444 {
445         return 0;
446 }
447 #endif
448 int snd_soc_poweroff(struct device *dev);
449 int snd_soc_add_component(struct device *dev,
450                 struct snd_soc_component *component,
451                 const struct snd_soc_component_driver *component_driver,
452                 struct snd_soc_dai_driver *dai_drv,
453                 int num_dai);
454 int snd_soc_register_component(struct device *dev,
455                          const struct snd_soc_component_driver *component_driver,
456                          struct snd_soc_dai_driver *dai_drv, int num_dai);
457 int devm_snd_soc_register_component(struct device *dev,
458                          const struct snd_soc_component_driver *component_driver,
459                          struct snd_soc_dai_driver *dai_drv, int num_dai);
460 void snd_soc_unregister_component(struct device *dev);
461 struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
462                                                    const char *driver_name);
463 
464 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num);
465 #ifdef CONFIG_SND_SOC_COMPRESS
466 int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num);
467 #else
468 static inline int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
469 {
470         return 0;
471 }
472 #endif
473 
474 void snd_soc_disconnect_sync(struct device *dev);
475 
476 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
477                 const char *dai_link, int stream);
478 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
479                 const char *dai_link);
480 
481 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd);
482 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream);
483 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream);
484 
485 int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd,
486         unsigned int dai_fmt);
487 
488 #ifdef CONFIG_DMI
489 int snd_soc_set_dmi_name(struct snd_soc_card *card, const char *flavour);
490 #else
491 static inline int snd_soc_set_dmi_name(struct snd_soc_card *card,
492                                        const char *flavour)
493 {
494         return 0;
495 }
496 #endif
497 
498 /* Utility functions to get clock rates from various things */
499 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
500 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
501 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
502 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
503 
504 /* set runtime hw params */
505 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream,
506         const struct snd_pcm_hardware *hw);
507 
508 int soc_dai_hw_params(struct snd_pcm_substream *substream,
509                       struct snd_pcm_hw_params *params,
510                       struct snd_soc_dai *dai);
511 
512 /* Jack reporting */
513 int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type,
514         struct snd_soc_jack *jack, struct snd_soc_jack_pin *pins,
515         unsigned int num_pins);
516 
517 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask);
518 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count,
519                           struct snd_soc_jack_pin *pins);
520 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack,
521                                     struct notifier_block *nb);
522 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack,
523                                       struct notifier_block *nb);
524 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count,
525                           struct snd_soc_jack_zone *zones);
526 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage);
527 #ifdef CONFIG_GPIOLIB
528 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
529                         struct snd_soc_jack_gpio *gpios);
530 int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
531                             struct snd_soc_jack *jack,
532                             int count, struct snd_soc_jack_gpio *gpios);
533 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
534                         struct snd_soc_jack_gpio *gpios);
535 #else
536 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count,
537                                          struct snd_soc_jack_gpio *gpios)
538 {
539         return 0;
540 }
541 
542 static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev,
543                                           struct snd_soc_jack *jack,
544                                           int count,
545                                           struct snd_soc_jack_gpio *gpios)
546 {
547         return 0;
548 }
549 
550 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count,
551                                            struct snd_soc_jack_gpio *gpios)
552 {
553 }
554 #endif
555 
556 struct snd_ac97 *snd_soc_alloc_ac97_component(struct snd_soc_component *component);
557 struct snd_ac97 *snd_soc_new_ac97_component(struct snd_soc_component *component,
558         unsigned int id, unsigned int id_mask);
559 void snd_soc_free_ac97_component(struct snd_ac97 *ac97);
560 
561 #ifdef CONFIG_SND_SOC_AC97_BUS
562 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops);
563 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
564                 struct platform_device *pdev);
565 
566 extern struct snd_ac97_bus_ops *soc_ac97_ops;
567 #else
568 static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
569         struct platform_device *pdev)
570 {
571         return 0;
572 }
573 
574 static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
575 {
576         return 0;
577 }
578 #endif
579 
580 /*
581  *Controls
582  */
583 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
584                                   void *data, const char *long_name,
585                                   const char *prefix);
586 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
587                                                const char *name);
588 int snd_soc_add_component_controls(struct snd_soc_component *component,
589         const struct snd_kcontrol_new *controls, unsigned int num_controls);
590 int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
591         const struct snd_kcontrol_new *controls, int num_controls);
592 int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
593         const struct snd_kcontrol_new *controls, int num_controls);
594 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
595         struct snd_ctl_elem_info *uinfo);
596 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
597         struct snd_ctl_elem_value *ucontrol);
598 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
599         struct snd_ctl_elem_value *ucontrol);
600 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
601         struct snd_ctl_elem_info *uinfo);
602 int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
603                           struct snd_ctl_elem_info *uinfo);
604 #define snd_soc_info_bool_ext           snd_ctl_boolean_mono_info
605 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
606         struct snd_ctl_elem_value *ucontrol);
607 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
608         struct snd_ctl_elem_value *ucontrol);
609 #define snd_soc_get_volsw_2r snd_soc_get_volsw
610 #define snd_soc_put_volsw_2r snd_soc_put_volsw
611 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
612         struct snd_ctl_elem_value *ucontrol);
613 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
614         struct snd_ctl_elem_value *ucontrol);
615 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
616         struct snd_ctl_elem_info *uinfo);
617 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
618         struct snd_ctl_elem_value *ucontrol);
619 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
620         struct snd_ctl_elem_value *ucontrol);
621 int snd_soc_limit_volume(struct snd_soc_card *card,
622         const char *name, int max);
623 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
624                        struct snd_ctl_elem_info *uinfo);
625 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
626                       struct snd_ctl_elem_value *ucontrol);
627 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
628                       struct snd_ctl_elem_value *ucontrol);
629 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
630         struct snd_ctl_elem_info *ucontrol);
631 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
632         unsigned int size, unsigned int __user *tlv);
633 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
634         struct snd_ctl_elem_info *uinfo);
635 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
636         struct snd_ctl_elem_value *ucontrol);
637 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
638         struct snd_ctl_elem_value *ucontrol);
639 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
640         struct snd_ctl_elem_value *ucontrol);
641 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
642         struct snd_ctl_elem_value *ucontrol);
643 
644 /**
645  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
646  *
647  * @pin:    name of the pin to update
648  * @mask:   bits to check for in reported jack status
649  * @invert: if non-zero then pin is enabled when status is not reported
650  * @list:   internal list entry
651  */
652 struct snd_soc_jack_pin {
653         struct list_head list;
654         const char *pin;
655         int mask;
656         bool invert;
657 };
658 
659 /**
660  * struct snd_soc_jack_zone - Describes voltage zones of jack detection
661  *
662  * @min_mv: start voltage in mv
663  * @max_mv: end voltage in mv
664  * @jack_type: type of jack that is expected for this voltage
665  * @debounce_time: debounce_time for jack, codec driver should wait for this
666  *              duration before reading the adc for voltages
667  * @list:   internal list entry
668  */
669 struct snd_soc_jack_zone {
670         unsigned int min_mv;
671         unsigned int max_mv;
672         unsigned int jack_type;
673         unsigned int debounce_time;
674         struct list_head list;
675 };
676 
677 /**
678  * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection
679  *
680  * @gpio:         legacy gpio number
681  * @idx:          gpio descriptor index within the function of the GPIO
682  *                consumer device
683  * @gpiod_dev:    GPIO consumer device
684  * @name:         gpio name. Also as connection ID for the GPIO consumer
685  *                device function name lookup
686  * @report:       value to report when jack detected
687  * @invert:       report presence in low state
688  * @debounce_time: debounce time in ms
689  * @wake:         enable as wake source
690  * @jack_status_check: callback function which overrides the detection
691  *                     to provide more complex checks (eg, reading an
692  *                     ADC).
693  */
694 struct snd_soc_jack_gpio {
695         unsigned int gpio;
696         unsigned int idx;
697         struct device *gpiod_dev;
698         const char *name;
699         int report;
700         int invert;
701         int debounce_time;
702         bool wake;
703 
704         /* private: */
705         struct snd_soc_jack *jack;
706         struct delayed_work work;
707         struct notifier_block pm_notifier;
708         struct gpio_desc *desc;
709 
710         void *data;
711         /* public: */
712         int (*jack_status_check)(void *data);
713 };
714 
715 struct snd_soc_jack {
716         struct mutex mutex;
717         struct snd_jack *jack;
718         struct snd_soc_card *card;
719         struct list_head pins;
720         int status;
721         struct blocking_notifier_head notifier;
722         struct list_head jack_zones;
723 };
724 
725 /* SoC PCM stream information */
726 struct snd_soc_pcm_stream {
727         const char *stream_name;
728         u64 formats;                    /* SNDRV_PCM_FMTBIT_* */
729         unsigned int rates;             /* SNDRV_PCM_RATE_* */
730         unsigned int rate_min;          /* min rate */
731         unsigned int rate_max;          /* max rate */
732         unsigned int channels_min;      /* min channels */
733         unsigned int channels_max;      /* max channels */
734         unsigned int sig_bits;          /* number of bits of content */
735 };
736 
737 /* SoC audio ops */
738 struct snd_soc_ops {
739         int (*startup)(struct snd_pcm_substream *);
740         void (*shutdown)(struct snd_pcm_substream *);
741         int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *);
742         int (*hw_free)(struct snd_pcm_substream *);
743         int (*prepare)(struct snd_pcm_substream *);
744         int (*trigger)(struct snd_pcm_substream *, int);
745 };
746 
747 struct snd_soc_compr_ops {
748         int (*startup)(struct snd_compr_stream *);
749         void (*shutdown)(struct snd_compr_stream *);
750         int (*set_params)(struct snd_compr_stream *);
751         int (*trigger)(struct snd_compr_stream *);
752 };
753 
754 /* component interface */
755 struct snd_soc_component_driver {
756         const char *name;
757 
758         /* Default control and setup, added after probe() is run */
759         const struct snd_kcontrol_new *controls;
760         unsigned int num_controls;
761         const struct snd_soc_dapm_widget *dapm_widgets;
762         unsigned int num_dapm_widgets;
763         const struct snd_soc_dapm_route *dapm_routes;
764         unsigned int num_dapm_routes;
765 
766         int (*probe)(struct snd_soc_component *);
767         void (*remove)(struct snd_soc_component *);
768         int (*suspend)(struct snd_soc_component *);
769         int (*resume)(struct snd_soc_component *);
770 
771         unsigned int (*read)(struct snd_soc_component *, unsigned int);
772         int (*write)(struct snd_soc_component *, unsigned int, unsigned int);
773 
774         /* pcm creation and destruction */
775         int (*pcm_new)(struct snd_soc_pcm_runtime *);
776         void (*pcm_free)(struct snd_pcm *);
777 
778         /* component wide operations */
779         int (*set_sysclk)(struct snd_soc_component *component,
780                           int clk_id, int source, unsigned int freq, int dir);
781         int (*set_pll)(struct snd_soc_component *component, int pll_id,
782                        int source, unsigned int freq_in, unsigned int freq_out);
783         int (*set_jack)(struct snd_soc_component *component,
784                         struct snd_soc_jack *jack,  void *data);
785 
786         /* DT */
787         int (*of_xlate_dai_name)(struct snd_soc_component *component,
788                                  struct of_phandle_args *args,
789                                  const char **dai_name);
790         int (*of_xlate_dai_id)(struct snd_soc_component *comment,
791                                struct device_node *endpoint);
792         void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type,
793                 int subseq);
794         int (*stream_event)(struct snd_soc_component *, int event);
795         int (*set_bias_level)(struct snd_soc_component *component,
796                               enum snd_soc_bias_level level);
797 
798         const struct snd_pcm_ops *ops;
799         const struct snd_compr_ops *compr_ops;
800 
801         /* probe ordering - for components with runtime dependencies */
802         int probe_order;
803         int remove_order;
804 
805         /*
806          * signal if the module handling the component should not be removed
807          * if a pcm is open. Setting this would prevent the module
808          * refcount being incremented in probe() but allow it be incremented
809          * when a pcm is opened and decremented when it is closed.
810          */
811         unsigned int module_get_upon_open:1;
812 
813         /* bits */
814         unsigned int idle_bias_on:1;
815         unsigned int suspend_bias_off:1;
816         unsigned int use_pmdown_time:1; /* care pmdown_time at stop */
817         unsigned int endianness:1;
818         unsigned int non_legacy_dai_naming:1;
819 
820         /* this component uses topology and ignore machine driver FEs */
821         const char *ignore_machine;
822         const char *topology_name_prefix;
823         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
824                                   struct snd_pcm_hw_params *params);
825         bool use_dai_pcm_id;    /* use the DAI link PCM ID as PCM device number */
826         int be_pcm_base;        /* base device ID for all BE PCMs */
827 };
828 
829 struct snd_soc_component {
830         const char *name;
831         int id;
832         const char *name_prefix;
833         struct device *dev;
834         struct snd_soc_card *card;
835 
836         unsigned int active;
837 
838         unsigned int suspended:1; /* is in suspend PM state */
839 
840         struct list_head list;
841         struct list_head card_aux_list; /* for auxiliary bound components */
842         struct list_head card_list;
843 
844         const struct snd_soc_component_driver *driver;
845 
846         struct list_head dai_list;
847         int num_dai;
848 
849         struct regmap *regmap;
850         int val_bytes;
851 
852         struct mutex io_mutex;
853 
854         /* attached dynamic objects */
855         struct list_head dobj_list;
856 
857         /*
858         * DO NOT use any of the fields below in drivers, they are temporary and
859         * are going to be removed again soon. If you use them in driver code the
860         * driver will be marked as BROKEN when these fields are removed.
861         */
862 
863         /* Don't use these, use snd_soc_component_get_dapm() */
864         struct snd_soc_dapm_context dapm;
865 
866         /* machine specific init */
867         int (*init)(struct snd_soc_component *component);
868 
869 #ifdef CONFIG_DEBUG_FS
870         struct dentry *debugfs_root;
871         const char *debugfs_prefix;
872 #endif
873 };
874 
875 #define for_each_component_dais(component, dai)\
876         list_for_each_entry(dai, &(component)->dai_list, list)
877 #define for_each_component_dais_safe(component, dai, _dai)\
878         list_for_each_entry_safe(dai, _dai, &(component)->dai_list, list)
879 
880 struct snd_soc_rtdcom_list {
881         struct snd_soc_component *component;
882         struct list_head list; /* rtd::component_list */
883 };
884 struct snd_soc_component*
885 snd_soc_rtdcom_lookup(struct snd_soc_pcm_runtime *rtd,
886                        const char *driver_name);
887 #define for_each_rtdcom(rtd, rtdcom) \
888         list_for_each_entry(rtdcom, &(rtd)->component_list, list)
889 #define for_each_rtdcom_safe(rtd, rtdcom1, rtdcom2) \
890         list_for_each_entry_safe(rtdcom1, rtdcom2, &(rtd)->component_list, list)
891 
892 struct snd_soc_dai_link_component {
893         const char *name;
894         struct device_node *of_node;
895         const char *dai_name;
896 };
897 
898 struct snd_soc_dai_link {
899         /* config - must be set by machine driver */
900         const char *name;                       /* Codec name */
901         const char *stream_name;                /* Stream name */
902 
903         /*
904          * You MAY specify the link's CPU-side device, either by device name,
905          * or by DT/OF node, but not both. If this information is omitted,
906          * the CPU-side DAI is matched using .cpu_dai_name only, which hence
907          * must be globally unique. These fields are currently typically used
908          * only for codec to codec links, or systems using device tree.
909          */
910         /*
911          * You MAY specify the DAI name of the CPU DAI. If this information is
912          * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node
913          * only, which only works well when that device exposes a single DAI.
914          */
915         struct snd_soc_dai_link_component *cpus;
916         unsigned int num_cpus;
917 
918         /*
919          * You MUST specify the link's codec, either by device name, or by
920          * DT/OF node, but not both.
921          */
922         /* You MUST specify the DAI name within the codec */
923         struct snd_soc_dai_link_component *codecs;
924         unsigned int num_codecs;
925 
926         /*
927          * You MAY specify the link's platform/PCM/DMA driver, either by
928          * device name, or by DT/OF node, but not both. Some forms of link
929          * do not need a platform. In such case, platforms are not mandatory.
930          */
931         struct snd_soc_dai_link_component *platforms;
932         unsigned int num_platforms;
933 
934         int id; /* optional ID for machine driver link identification */
935 
936         const struct snd_soc_pcm_stream *params;
937         unsigned int num_params;
938 
939         unsigned int dai_fmt;           /* format to set on init */
940 
941         enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */
942 
943         /* codec/machine specific init - e.g. add machine controls */
944         int (*init)(struct snd_soc_pcm_runtime *rtd);
945 
946         /* optional hw_params re-writing for BE and FE sync */
947         int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd,
948                         struct snd_pcm_hw_params *params);
949 
950         /* machine stream operations */
951         const struct snd_soc_ops *ops;
952         const struct snd_soc_compr_ops *compr_ops;
953 
954         /* Mark this pcm with non atomic ops */
955         bool nonatomic;
956 
957         /* For unidirectional dai links */
958         unsigned int playback_only:1;
959         unsigned int capture_only:1;
960 
961         /* Keep DAI active over suspend */
962         unsigned int ignore_suspend:1;
963 
964         /* Symmetry requirements */
965         unsigned int symmetric_rates:1;
966         unsigned int symmetric_channels:1;
967         unsigned int symmetric_samplebits:1;
968 
969         /* Do not create a PCM for this DAI link (Backend link) */
970         unsigned int no_pcm:1;
971 
972         /* This DAI link can route to other DAI links at runtime (Frontend)*/
973         unsigned int dynamic:1;
974 
975         /* DPCM capture and Playback support */
976         unsigned int dpcm_capture:1;
977         unsigned int dpcm_playback:1;
978 
979         /* DPCM used FE & BE merged format */
980         unsigned int dpcm_merged_format:1;
981         /* DPCM used FE & BE merged channel */
982         unsigned int dpcm_merged_chan:1;
983         /* DPCM used FE & BE merged rate */
984         unsigned int dpcm_merged_rate:1;
985 
986         /* pmdown_time is ignored at stop */
987         unsigned int ignore_pmdown_time:1;
988 
989         /* Do not create a PCM for this DAI link (Backend link) */
990         unsigned int ignore:1;
991 
992         struct list_head list; /* DAI link list of the soc card */
993         struct snd_soc_dobj dobj; /* For topology */
994 };
995 #define for_each_link_codecs(link, i, codec)                            \
996         for ((i) = 0;                                                   \
997              ((i) < link->num_codecs) && ((codec) = &link->codecs[i]);  \
998              (i)++)
999 
1000 #define for_each_link_platforms(link, i, platform)                      \
1001         for ((i) = 0;                                                   \
1002              ((i) < link->num_platforms) &&                             \
1003              ((platform) = &link->platforms[i]);                        \
1004              (i)++)
1005 
1006 /*
1007  * Sample 1 : Single CPU/Codec/Platform
1008  *
1009  * SND_SOC_DAILINK_DEFS(test,
1010  *      DAILINK_COMP_ARRAY(COMP_CPU("cpu_dai")),
1011  *      DAILINK_COMP_ARRAY(COMP_CODEC("codec", "codec_dai")),
1012  *      DAILINK_COMP_ARRAY(COMP_PLATFORM("platform")));
1013  *
1014  * struct snd_soc_dai_link link = {
1015  *      ...
1016  *      SND_SOC_DAILINK_REG(test),
1017  * };
1018  *
1019  * Sample 2 : Multi CPU/Codec, no Platform
1020  *
1021  * SND_SOC_DAILINK_DEFS(test,
1022  *      DAILINK_COMP_ARRAY(COMP_CPU("cpu_dai1"),
1023  *                         COMP_CPU("cpu_dai2")),
1024  *      DAILINK_COMP_ARRAY(COMP_CODEC("codec1", "codec_dai1"),
1025  *                         COMP_CODEC("codec2", "codec_dai2")));
1026  *
1027  * struct snd_soc_dai_link link = {
1028  *      ...
1029  *      SND_SOC_DAILINK_REG(test),
1030  * };
1031  *
1032  * Sample 3 : Define each CPU/Codec/Platform manually
1033  *
1034  * SND_SOC_DAILINK_DEF(test_cpu,
1035  *              DAILINK_COMP_ARRAY(COMP_CPU("cpu_dai1"),
1036  *                                 COMP_CPU("cpu_dai2")));
1037  * SND_SOC_DAILINK_DEF(test_codec,
1038  *              DAILINK_COMP_ARRAY(COMP_CODEC("codec1", "codec_dai1"),
1039  *                                 COMP_CODEC("codec2", "codec_dai2")));
1040  * SND_SOC_DAILINK_DEF(test_platform,
1041  *              DAILINK_COMP_ARRAY(COMP_PLATFORM("platform")));
1042  *
1043  * struct snd_soc_dai_link link = {
1044  *      ...
1045  *      SND_SOC_DAILINK_REG(test_cpu,
1046  *                          test_codec,
1047  *                          test_platform),
1048  * };
1049  *
1050  * Sample 4 : Sample3 without platform
1051  *
1052  * struct snd_soc_dai_link link = {
1053  *      ...
1054  *      SND_SOC_DAILINK_REG(test_cpu,
1055  *                          test_codec);
1056  * };
1057  */
1058 
1059 #define SND_SOC_DAILINK_REG1(name)       SND_SOC_DAILINK_REG3(name##_cpus, name##_codecs, name##_platforms)
1060 #define SND_SOC_DAILINK_REG2(cpu, codec) SND_SOC_DAILINK_REG3(cpu, codec, null_dailink_component)
1061 #define SND_SOC_DAILINK_REG3(cpu, codec, platform)      \
1062         .cpus           = cpu,                          \
1063         .num_cpus       = ARRAY_SIZE(cpu),              \
1064         .codecs         = codec,                        \
1065         .num_codecs     = ARRAY_SIZE(codec),            \
1066         .platforms      = platform,                     \
1067         .num_platforms  = ARRAY_SIZE(platform)
1068 
1069 #define SND_SOC_DAILINK_REGx(_1, _2, _3, func, ...) func
1070 #define SND_SOC_DAILINK_REG(...) \
1071         SND_SOC_DAILINK_REGx(__VA_ARGS__,               \
1072                         SND_SOC_DAILINK_REG3,   \
1073                         SND_SOC_DAILINK_REG2,   \
1074                         SND_SOC_DAILINK_REG1)(__VA_ARGS__)
1075 
1076 #define SND_SOC_DAILINK_DEF(name, def...)               \
1077         static struct snd_soc_dai_link_component name[] = { def }
1078 
1079 #define SND_SOC_DAILINK_DEFS(name, cpu, codec, platform...)     \
1080         SND_SOC_DAILINK_DEF(name##_cpus, cpu);                  \
1081         SND_SOC_DAILINK_DEF(name##_codecs, codec);              \
1082         SND_SOC_DAILINK_DEF(name##_platforms, platform)
1083 
1084 #define DAILINK_COMP_ARRAY(param...)    param
1085 #define COMP_EMPTY()                    { }
1086 #define COMP_CPU(_dai)                  { .dai_name = _dai, }
1087 #define COMP_CODEC(_name, _dai)         { .name = _name, .dai_name = _dai, }
1088 #define COMP_PLATFORM(_name)            { .name = _name }
1089 #define COMP_DUMMY()                    { .name = "snd-soc-dummy", .dai_name = "snd-soc-dummy-dai", }
1090 
1091 extern struct snd_soc_dai_link_component null_dailink_component[0];
1092 
1093 
1094 struct snd_soc_codec_conf {
1095         /*
1096          * specify device either by device name, or by
1097          * DT/OF node, but not both.
1098          */
1099         const char *dev_name;
1100         struct device_node *of_node;
1101 
1102         /*
1103          * optional map of kcontrol, widget and path name prefixes that are
1104          * associated per device
1105          */
1106         const char *name_prefix;
1107 };
1108 
1109 struct snd_soc_aux_dev {
1110         const char *name;               /* Codec name */
1111 
1112         /*
1113          * specify multi-codec either by device name, or by
1114          * DT/OF node, but not both.
1115          */
1116         const char *codec_name;
1117         struct device_node *codec_of_node;
1118 
1119         /* codec/machine specific init - e.g. add machine controls */
1120         int (*init)(struct snd_soc_component *component);
1121 };
1122 
1123 /* SoC card */
1124 struct snd_soc_card {
1125         const char *name;
1126         const char *long_name;
1127         const char *driver_name;
1128         char dmi_longname[80];
1129         char topology_shortname[32];
1130 
1131         struct device *dev;
1132         struct snd_card *snd_card;
1133         struct module *owner;
1134 
1135         struct mutex mutex;
1136         struct mutex dapm_mutex;
1137 
1138         spinlock_t dpcm_lock;
1139 
1140         bool instantiated;
1141         bool topology_shortname_created;
1142 
1143         int (*probe)(struct snd_soc_card *card);
1144         int (*late_probe)(struct snd_soc_card *card);
1145         int (*remove)(struct snd_soc_card *card);
1146 
1147         /* the pre and post PM functions are used to do any PM work before and
1148          * after the codec and DAI's do any PM work. */
1149         int (*suspend_pre)(struct snd_soc_card *card);
1150         int (*suspend_post)(struct snd_soc_card *card);
1151         int (*resume_pre)(struct snd_soc_card *card);
1152         int (*resume_post)(struct snd_soc_card *card);
1153 
1154         /* callbacks */
1155         int (*set_bias_level)(struct snd_soc_card *,
1156                               struct snd_soc_dapm_context *dapm,
1157                               enum snd_soc_bias_level level);
1158         int (*set_bias_level_post)(struct snd_soc_card *,
1159                                    struct snd_soc_dapm_context *dapm,
1160                                    enum snd_soc_bias_level level);
1161 
1162         int (*add_dai_link)(struct snd_soc_card *,
1163                             struct snd_soc_dai_link *link);
1164         void (*remove_dai_link)(struct snd_soc_card *,
1165                             struct snd_soc_dai_link *link);
1166 
1167         long pmdown_time;
1168 
1169         /* CPU <--> Codec DAI links  */
1170         struct snd_soc_dai_link *dai_link;  /* predefined links only */
1171         int num_links;  /* predefined links only */
1172         struct list_head dai_link_list; /* all links */
1173 
1174         struct list_head rtd_list;
1175         int num_rtd;
1176 
1177         /* optional codec specific configuration */
1178         struct snd_soc_codec_conf *codec_conf;
1179         int num_configs;
1180 
1181         /*
1182          * optional auxiliary devices such as amplifiers or codecs with DAI
1183          * link unused
1184          */
1185         struct snd_soc_aux_dev *aux_dev;
1186         int num_aux_devs;
1187         struct list_head aux_comp_list;
1188 
1189         const struct snd_kcontrol_new *controls;
1190         int num_controls;
1191 
1192         /*
1193          * Card-specific routes and widgets.
1194          * Note: of_dapm_xxx for Device Tree; Otherwise for driver build-in.
1195          */
1196         const struct snd_soc_dapm_widget *dapm_widgets;
1197         int num_dapm_widgets;
1198         const struct snd_soc_dapm_route *dapm_routes;
1199         int num_dapm_routes;
1200         const struct snd_soc_dapm_widget *of_dapm_widgets;
1201         int num_of_dapm_widgets;
1202         const struct snd_soc_dapm_route *of_dapm_routes;
1203         int num_of_dapm_routes;
1204         bool fully_routed;
1205 
1206         struct work_struct deferred_resume_work;
1207 
1208         /* lists of probed devices belonging to this card */
1209         struct list_head component_dev_list;
1210         struct list_head list;
1211 
1212         struct list_head widgets;
1213         struct list_head paths;
1214         struct list_head dapm_list;
1215         struct list_head dapm_dirty;
1216 
1217         /* attached dynamic objects */
1218         struct list_head dobj_list;
1219 
1220         /* Generic DAPM context for the card */
1221         struct snd_soc_dapm_context dapm;
1222         struct snd_soc_dapm_stats dapm_stats;
1223         struct snd_soc_dapm_update *update;
1224 
1225 #ifdef CONFIG_DEBUG_FS
1226         struct dentry *debugfs_card_root;
1227         struct dentry *debugfs_pop_time;
1228 #endif
1229         u32 pop_time;
1230 
1231         void *drvdata;
1232 };
1233 #define for_each_card_prelinks(card, i, link)                           \
1234         for ((i) = 0;                                                   \
1235              ((i) < (card)->num_links) && ((link) = &(card)->dai_link[i]); \
1236              (i)++)
1237 
1238 #define for_each_card_links(card, link)                         \
1239         list_for_each_entry(link, &(card)->dai_link_list, list)
1240 #define for_each_card_links_safe(card, link, _link)                     \
1241         list_for_each_entry_safe(link, _link, &(card)->dai_link_list, list)
1242 
1243 #define for_each_card_rtds(card, rtd)                   \
1244         list_for_each_entry(rtd, &(card)->rtd_list, list)
1245 #define for_each_card_rtds_safe(card, rtd, _rtd)        \
1246         list_for_each_entry_safe(rtd, _rtd, &(card)->rtd_list, list)
1247 
1248 #define for_each_card_components(card, component)                       \
1249         list_for_each_entry(component, &(card)->component_dev_list, card_list)
1250 
1251 /* SoC machine DAI configuration, glues a codec and cpu DAI together */
1252 struct snd_soc_pcm_runtime {
1253         struct device *dev;
1254         struct snd_soc_card *card;
1255         struct snd_soc_dai_link *dai_link;
1256         struct mutex pcm_mutex;
1257         enum snd_soc_pcm_subclass pcm_subclass;
1258         struct snd_pcm_ops ops;
1259 
1260         unsigned int params_select; /* currently selected param for dai link */
1261 
1262         /* Dynamic PCM BE runtime data */
1263         struct snd_soc_dpcm_runtime dpcm[2];
1264 
1265         long pmdown_time;
1266 
1267         /* runtime devices */
1268         struct snd_pcm *pcm;
1269         struct snd_compr *compr;
1270         struct snd_soc_dai *codec_dai;
1271         struct snd_soc_dai *cpu_dai;
1272 
1273         struct snd_soc_dai **codec_dais;
1274         unsigned int num_codecs;
1275 
1276         struct delayed_work delayed_work;
1277 #ifdef CONFIG_DEBUG_FS
1278         struct dentry *debugfs_dpcm_root;
1279 #endif
1280 
1281         unsigned int num; /* 0-based and monotonic increasing */
1282         struct list_head list; /* rtd list of the soc card */
1283         struct list_head component_list; /* list of connected components */
1284 
1285         /* bit field */
1286         unsigned int dev_registered:1;
1287         unsigned int pop_wait:1;
1288         unsigned int fe_compr:1; /* for Dynamic PCM */
1289 };
1290 #define for_each_rtd_codec_dai(rtd, i, dai)\
1291         for ((i) = 0;                                                  \
1292              ((i) < rtd->num_codecs) && ((dai) = rtd->codec_dais[i]); \
1293              (i)++)
1294 #define for_each_rtd_codec_dai_rollback(rtd, i, dai)            \
1295         for (; ((--i) >= 0) && ((dai) = rtd->codec_dais[i]);)
1296 
1297 
1298 /* mixer control */
1299 struct soc_mixer_control {
1300         int min, max, platform_max;
1301         int reg, rreg;
1302         unsigned int shift, rshift;
1303         unsigned int sign_bit;
1304         unsigned int invert:1;
1305         unsigned int autodisable:1;
1306         struct snd_soc_dobj dobj;
1307 };
1308 
1309 struct soc_bytes {
1310         int base;
1311         int num_regs;
1312         u32 mask;
1313 };
1314 
1315 struct soc_bytes_ext {
1316         int max;
1317         struct snd_soc_dobj dobj;
1318 
1319         /* used for TLV byte control */
1320         int (*get)(struct snd_kcontrol *kcontrol, unsigned int __user *bytes,
1321                         unsigned int size);
1322         int (*put)(struct snd_kcontrol *kcontrol, const unsigned int __user *bytes,
1323                         unsigned int size);
1324 };
1325 
1326 /* multi register control */
1327 struct soc_mreg_control {
1328         long min, max;
1329         unsigned int regbase, regcount, nbits, invert;
1330 };
1331 
1332 /* enumerated kcontrol */
1333 struct soc_enum {
1334         int reg;
1335         unsigned char shift_l;
1336         unsigned char shift_r;
1337         unsigned int items;
1338         unsigned int mask;
1339         const char * const *texts;
1340         const unsigned int *values;
1341         unsigned int autodisable:1;
1342         struct snd_soc_dobj dobj;
1343 };
1344 
1345 /**
1346  * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is
1347  *  embedded in
1348  * @dapm: The DAPM context to cast to the component
1349  *
1350  * This function must only be used on DAPM contexts that are known to be part of
1351  * a component (e.g. in a component driver). Otherwise the behavior is
1352  * undefined.
1353  */
1354 static inline struct snd_soc_component *snd_soc_dapm_to_component(
1355         struct snd_soc_dapm_context *dapm)
1356 {
1357         return container_of(dapm, struct snd_soc_component, dapm);
1358 }
1359 
1360 /**
1361  * snd_soc_component_get_dapm() - Returns the DAPM context associated with a
1362  *  component
1363  * @component: The component for which to get the DAPM context
1364  */
1365 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm(
1366         struct snd_soc_component *component)
1367 {
1368         return &component->dapm;
1369 }
1370 
1371 /**
1372  * snd_soc_component_init_bias_level() - Initialize COMPONENT DAPM bias level
1373  * @component: The COMPONENT for which to initialize the DAPM bias level
1374  * @level: The DAPM level to initialize to
1375  *
1376  * Initializes the COMPONENT DAPM bias level. See snd_soc_dapm_init_bias_level().
1377  */
1378 static inline void
1379 snd_soc_component_init_bias_level(struct snd_soc_component *component,
1380                                   enum snd_soc_bias_level level)
1381 {
1382         snd_soc_dapm_init_bias_level(
1383                 snd_soc_component_get_dapm(component), level);
1384 }
1385 
1386 /**
1387  * snd_soc_component_get_bias_level() - Get current COMPONENT DAPM bias level
1388  * @component: The COMPONENT for which to get the DAPM bias level
1389  *
1390  * Returns: The current DAPM bias level of the COMPONENT.
1391  */
1392 static inline enum snd_soc_bias_level
1393 snd_soc_component_get_bias_level(struct snd_soc_component *component)
1394 {
1395         return snd_soc_dapm_get_bias_level(
1396                 snd_soc_component_get_dapm(component));
1397 }
1398 
1399 /**
1400  * snd_soc_component_force_bias_level() - Set the COMPONENT DAPM bias level
1401  * @component: The COMPONENT for which to set the level
1402  * @level: The level to set to
1403  *
1404  * Forces the COMPONENT bias level to a specific state. See
1405  * snd_soc_dapm_force_bias_level().
1406  */
1407 static inline int
1408 snd_soc_component_force_bias_level(struct snd_soc_component *component,
1409                                    enum snd_soc_bias_level level)
1410 {
1411         return snd_soc_dapm_force_bias_level(
1412                 snd_soc_component_get_dapm(component),
1413                 level);
1414 }
1415 
1416 /**
1417  * snd_soc_dapm_kcontrol_component() - Returns the component associated to a kcontrol
1418  * @kcontrol: The kcontrol
1419  *
1420  * This function must only be used on DAPM contexts that are known to be part of
1421  * a COMPONENT (e.g. in a COMPONENT driver). Otherwise the behavior is undefined.
1422  */
1423 static inline struct snd_soc_component *snd_soc_dapm_kcontrol_component(
1424         struct snd_kcontrol *kcontrol)
1425 {
1426         return snd_soc_dapm_to_component(snd_soc_dapm_kcontrol_dapm(kcontrol));
1427 }
1428 
1429 /**
1430  * snd_soc_component_cache_sync() - Sync the register cache with the hardware
1431  * @component: COMPONENT to sync
1432  *
1433  * Note: This function will call regcache_sync()
1434  */
1435 static inline int snd_soc_component_cache_sync(
1436         struct snd_soc_component *component)
1437 {
1438         return regcache_sync(component->regmap);
1439 }
1440 
1441 /* component IO */
1442 int snd_soc_component_read(struct snd_soc_component *component,
1443         unsigned int reg, unsigned int *val);
1444 unsigned int snd_soc_component_read32(struct snd_soc_component *component,
1445                                       unsigned int reg);
1446 int snd_soc_component_write(struct snd_soc_component *component,
1447         unsigned int reg, unsigned int val);
1448 int snd_soc_component_update_bits(struct snd_soc_component *component,
1449         unsigned int reg, unsigned int mask, unsigned int val);
1450 int snd_soc_component_update_bits_async(struct snd_soc_component *component,
1451         unsigned int reg, unsigned int mask, unsigned int val);
1452 void snd_soc_component_async_complete(struct snd_soc_component *component);
1453 int snd_soc_component_test_bits(struct snd_soc_component *component,
1454         unsigned int reg, unsigned int mask, unsigned int value);
1455 
1456 /* component wide operations */
1457 int snd_soc_component_set_sysclk(struct snd_soc_component *component,
1458                         int clk_id, int source, unsigned int freq, int dir);
1459 int snd_soc_component_set_pll(struct snd_soc_component *component, int pll_id,
1460                               int source, unsigned int freq_in,
1461                               unsigned int freq_out);
1462 int snd_soc_component_set_jack(struct snd_soc_component *component,
1463                                struct snd_soc_jack *jack, void *data);
1464 
1465 #ifdef CONFIG_REGMAP
1466 
1467 void snd_soc_component_init_regmap(struct snd_soc_component *component,
1468         struct regmap *regmap);
1469 void snd_soc_component_exit_regmap(struct snd_soc_component *component);
1470 
1471 #endif
1472 
1473 /* device driver data */
1474 
1475 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card,
1476                 void *data)
1477 {
1478         card->drvdata = data;
1479 }
1480 
1481 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card)
1482 {
1483         return card->drvdata;
1484 }
1485 
1486 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c,
1487                 void *data)
1488 {
1489         dev_set_drvdata(c->dev, data);
1490 }
1491 
1492 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c)
1493 {
1494         return dev_get_drvdata(c->dev);
1495 }
1496 
1497 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card)
1498 {
1499         INIT_LIST_HEAD(&card->widgets);
1500         INIT_LIST_HEAD(&card->paths);
1501         INIT_LIST_HEAD(&card->dapm_list);
1502         INIT_LIST_HEAD(&card->aux_comp_list);
1503         INIT_LIST_HEAD(&card->component_dev_list);
1504         INIT_LIST_HEAD(&card->list);
1505 }
1506 
1507 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc)
1508 {
1509         if (mc->reg == mc->rreg && mc->shift == mc->rshift)
1510                 return 0;
1511         /*
1512          * mc->reg == mc->rreg && mc->shift != mc->rshift, or
1513          * mc->reg != mc->rreg means that the control is
1514          * stereo (bits in one register or in two registers)
1515          */
1516         return 1;
1517 }
1518 
1519 static inline unsigned int snd_soc_enum_val_to_item(struct soc_enum *e,
1520         unsigned int val)
1521 {
1522         unsigned int i;
1523 
1524         if (!e->values)
1525                 return val;
1526 
1527         for (i = 0; i < e->items; i++)
1528                 if (val == e->values[i])
1529                         return i;
1530 
1531         return 0;
1532 }
1533 
1534 static inline unsigned int snd_soc_enum_item_to_val(struct soc_enum *e,
1535         unsigned int item)
1536 {
1537         if (!e->values)
1538                 return item;
1539 
1540         return e->values[item];
1541 }
1542 
1543 static inline bool snd_soc_component_is_active(
1544         struct snd_soc_component *component)
1545 {
1546         return component->active != 0;
1547 }
1548 
1549 /**
1550  * snd_soc_kcontrol_component() - Returns the component that registered the
1551  *  control
1552  * @kcontrol: The control for which to get the component
1553  *
1554  * Note: This function will work correctly if the control has been registered
1555  * for a component. With snd_soc_add_codec_controls() or via table based
1556  * setup for either a CODEC or component driver. Otherwise the behavior is
1557  * undefined.
1558  */
1559 static inline struct snd_soc_component *snd_soc_kcontrol_component(
1560         struct snd_kcontrol *kcontrol)
1561 {
1562         return snd_kcontrol_chip(kcontrol);
1563 }
1564 
1565 int snd_soc_util_init(void);
1566 void snd_soc_util_exit(void);
1567 
1568 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
1569                                const char *propname);
1570 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card,
1571                                           const char *propname);
1572 int snd_soc_of_get_slot_mask(struct device_node *np,
1573                              const char *prop_name,
1574                              unsigned int *mask);
1575 int snd_soc_of_parse_tdm_slot(struct device_node *np,
1576                               unsigned int *tx_mask,
1577                               unsigned int *rx_mask,
1578                               unsigned int *slots,
1579                               unsigned int *slot_width);
1580 void snd_soc_of_parse_node_prefix(struct device_node *np,
1581                                    struct snd_soc_codec_conf *codec_conf,
1582                                    struct device_node *of_node,
1583                                    const char *propname);
1584 static inline
1585 void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
1586                                    struct snd_soc_codec_conf *codec_conf,
1587                                    struct device_node *of_node,
1588                                    const char *propname)
1589 {
1590         snd_soc_of_parse_node_prefix(card->dev->of_node,
1591                                      codec_conf, of_node, propname);
1592 }
1593 
1594 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
1595                                    const char *propname);
1596 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
1597                                      const char *prefix,
1598                                      struct device_node **bitclkmaster,
1599                                      struct device_node **framemaster);
1600 int snd_soc_get_dai_id(struct device_node *ep);
1601 int snd_soc_get_dai_name(struct of_phandle_args *args,
1602                          const char **dai_name);
1603 int snd_soc_of_get_dai_name(struct device_node *of_node,
1604                             const char **dai_name);
1605 int snd_soc_of_get_dai_link_codecs(struct device *dev,
1606                                    struct device_node *of_node,
1607                                    struct snd_soc_dai_link *dai_link);
1608 void snd_soc_of_put_dai_link_codecs(struct snd_soc_dai_link *dai_link);
1609 
1610 int snd_soc_add_dai_link(struct snd_soc_card *card,
1611                                 struct snd_soc_dai_link *dai_link);
1612 void snd_soc_remove_dai_link(struct snd_soc_card *card,
1613                              struct snd_soc_dai_link *dai_link);
1614 struct snd_soc_dai_link *snd_soc_find_dai_link(struct snd_soc_card *card,
1615                                                int id, const char *name,
1616                                                const char *stream_name);
1617 
1618 int snd_soc_register_dai(struct snd_soc_component *component,
1619         struct snd_soc_dai_driver *dai_drv);
1620 
1621 struct snd_soc_dai *snd_soc_find_dai(
1622         const struct snd_soc_dai_link_component *dlc);
1623 
1624 #include <sound/soc-dai.h>
1625 
1626 static inline
1627 struct snd_soc_dai *snd_soc_card_get_codec_dai(struct snd_soc_card *card,
1628                                                const char *dai_name)
1629 {
1630         struct snd_soc_pcm_runtime *rtd;
1631 
1632         list_for_each_entry(rtd, &card->rtd_list, list) {
1633                 if (!strcmp(rtd->codec_dai->name, dai_name))
1634                         return rtd->codec_dai;
1635         }
1636 
1637         return NULL;
1638 }
1639 
1640 static inline
1641 int snd_soc_fixup_dai_links_platform_name(struct snd_soc_card *card,
1642                                           const char *platform_name)
1643 {
1644         struct snd_soc_dai_link *dai_link;
1645         const char *name;
1646         int i;
1647 
1648         if (!platform_name) /* nothing to do */
1649                 return 0;
1650 
1651         /* set platform name for each dailink */
1652         for_each_card_prelinks(card, i, dai_link) {
1653                 name = devm_kstrdup(card->dev, platform_name, GFP_KERNEL);
1654                 if (!name)
1655                         return -ENOMEM;
1656 
1657                 if (!dai_link->platforms)
1658                         return -EINVAL;
1659 
1660                 /* only single platform is supported for now */
1661                 dai_link->platforms->name = name;
1662         }
1663 
1664         return 0;
1665 }
1666 
1667 #ifdef CONFIG_DEBUG_FS
1668 extern struct dentry *snd_soc_debugfs_root;
1669 #endif
1670 
1671 extern const struct dev_pm_ops snd_soc_pm_ops;
1672 
1673 /* Helper functions */
1674 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm)
1675 {
1676         mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
1677 }
1678 
1679 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm)
1680 {
1681         mutex_unlock(&dapm->card->dapm_mutex);
1682 }
1683 
1684 int snd_soc_component_enable_pin(struct snd_soc_component *component,
1685                                  const char *pin);
1686 int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
1687                                           const char *pin);
1688 int snd_soc_component_disable_pin(struct snd_soc_component *component,
1689                                   const char *pin);
1690 int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
1691                                            const char *pin);
1692 int snd_soc_component_nc_pin(struct snd_soc_component *component,
1693                              const char *pin);
1694 int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
1695                                       const char *pin);
1696 int snd_soc_component_get_pin_status(struct snd_soc_component *component,
1697                                      const char *pin);
1698 int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
1699                                        const char *pin);
1700 int snd_soc_component_force_enable_pin_unlocked(
1701                                         struct snd_soc_component *component,
1702                                         const char *pin);
1703 
1704 #endif
1705 

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