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/of.h> 17 #include <linux/platform_device.h> 18 #include <linux/types.h> 19 #include <linux/notifier.h> 20 #include <linux/workqueue.h> 21 #include <linux/interrupt.h> 22 #include <linux/kernel.h> 23 #include <linux/regmap.h> 24 #include <linux/log2.h> 25 #include <sound/core.h> 26 #include <sound/pcm.h> 27 #include <sound/compress_driver.h> 28 #include <sound/control.h> 29 #include <sound/ac97_codec.h> 30 #include <sound/soc-topology.h> 31 32 /* 33 * Convenience kcontrol builders 34 */ 35 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \ 36 ((unsigned long)&(struct soc_mixer_control) \ 37 {.reg = xreg, .rreg = xreg, .shift = shift_left, \ 38 .rshift = shift_right, .max = xmax, .platform_max = xmax, \ 39 .invert = xinvert, .autodisable = xautodisable}) 40 #define SOC_DOUBLE_S_VALUE(xreg, shift_left, shift_right, xmin, xmax, xsign_bit, xinvert, xautodisable) \ 41 ((unsigned long)&(struct soc_mixer_control) \ 42 {.reg = xreg, .rreg = xreg, .shift = shift_left, \ 43 .rshift = shift_right, .min = xmin, .max = xmax, .platform_max = xmax, \ 44 .sign_bit = xsign_bit, .invert = xinvert, .autodisable = xautodisable}) 45 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \ 46 SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable) 47 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \ 48 ((unsigned long)&(struct soc_mixer_control) \ 49 {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert}) 50 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \ 51 ((unsigned long)&(struct soc_mixer_control) \ 52 {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \ 53 .max = xmax, .platform_max = xmax, .invert = xinvert}) 54 #define SOC_DOUBLE_R_S_VALUE(xlreg, xrreg, xshift, xmin, xmax, xsign_bit, xinvert) \ 55 ((unsigned long)&(struct soc_mixer_control) \ 56 {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \ 57 .max = xmax, .min = xmin, .platform_max = xmax, .sign_bit = xsign_bit, \ 58 .invert = xinvert}) 59 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \ 60 ((unsigned long)&(struct soc_mixer_control) \ 61 {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \ 62 .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert}) 63 #define SOC_SINGLE(xname, reg, shift, max, invert) \ 64 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 65 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 66 .put = snd_soc_put_volsw, \ 67 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) } 68 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \ 69 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 70 .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \ 71 .put = snd_soc_put_volsw_range, \ 72 .private_value = (unsigned long)&(struct soc_mixer_control) \ 73 {.reg = xreg, .rreg = xreg, .shift = xshift, \ 74 .rshift = xshift, .min = xmin, .max = xmax, \ 75 .platform_max = xmax, .invert = xinvert} } 76 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 77 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 78 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 79 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 80 .tlv.p = (tlv_array), \ 81 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 82 .put = snd_soc_put_volsw, \ 83 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) } 84 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \ 85 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 86 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 87 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 88 .tlv.p = (tlv_array),\ 89 .info = snd_soc_info_volsw, \ 90 .get = snd_soc_get_volsw_sx,\ 91 .put = snd_soc_put_volsw_sx, \ 92 .private_value = (unsigned long)&(struct soc_mixer_control) \ 93 {.reg = xreg, .rreg = xreg, \ 94 .shift = xshift, .rshift = xshift, \ 95 .max = xmax, .min = xmin} } 96 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \ 97 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 98 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 99 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 100 .tlv.p = (tlv_array), \ 101 .info = snd_soc_info_volsw_range, \ 102 .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ 103 .private_value = (unsigned long)&(struct soc_mixer_control) \ 104 {.reg = xreg, .rreg = xreg, .shift = xshift, \ 105 .rshift = xshift, .min = xmin, .max = xmax, \ 106 .platform_max = xmax, .invert = xinvert} } 107 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \ 108 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 109 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 110 .put = snd_soc_put_volsw, \ 111 .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \ 112 max, invert, 0) } 113 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \ 114 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 115 .info = snd_soc_info_volsw, \ 116 .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \ 117 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 118 xmax, xinvert) } 119 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \ 120 xmax, xinvert) \ 121 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 122 .info = snd_soc_info_volsw_range, \ 123 .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ 124 .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \ 125 xshift, xmin, xmax, xinvert) } 126 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \ 127 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 128 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 129 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 130 .tlv.p = (tlv_array), \ 131 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 132 .put = snd_soc_put_volsw, \ 133 .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \ 134 max, invert, 0) } 135 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \ 136 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 137 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 138 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 139 .tlv.p = (tlv_array), \ 140 .info = snd_soc_info_volsw, \ 141 .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \ 142 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 143 xmax, xinvert) } 144 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \ 145 xmax, xinvert, tlv_array) \ 146 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 147 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 148 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 149 .tlv.p = (tlv_array), \ 150 .info = snd_soc_info_volsw_range, \ 151 .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ 152 .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \ 153 xshift, xmin, xmax, xinvert) } 154 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \ 155 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 156 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 157 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 158 .tlv.p = (tlv_array), \ 159 .info = snd_soc_info_volsw, \ 160 .get = snd_soc_get_volsw_sx, \ 161 .put = snd_soc_put_volsw_sx, \ 162 .private_value = (unsigned long)&(struct soc_mixer_control) \ 163 {.reg = xreg, .rreg = xrreg, \ 164 .shift = xshift, .rshift = xshift, \ 165 .max = xmax, .min = xmin} } 166 #define SOC_DOUBLE_R_S_TLV(xname, reg_left, reg_right, xshift, xmin, xmax, xsign_bit, xinvert, tlv_array) \ 167 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 168 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 169 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 170 .tlv.p = (tlv_array), \ 171 .info = snd_soc_info_volsw, \ 172 .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \ 173 .private_value = SOC_DOUBLE_R_S_VALUE(reg_left, reg_right, xshift, \ 174 xmin, xmax, xsign_bit, xinvert) } 175 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \ 176 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 177 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 178 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 179 .tlv.p = (tlv_array), \ 180 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 181 .put = snd_soc_put_volsw, \ 182 .private_value = SOC_DOUBLE_S_VALUE(xreg, 0, 8, xmin, xmax, 7, 0, 0) } 183 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xitems, xtexts) \ 184 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ 185 .items = xitems, .texts = xtexts, \ 186 .mask = xitems ? roundup_pow_of_two(xitems) - 1 : 0} 187 #define SOC_ENUM_SINGLE(xreg, xshift, xitems, xtexts) \ 188 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xitems, xtexts) 189 #define SOC_ENUM_SINGLE_EXT(xitems, xtexts) \ 190 { .items = xitems, .texts = xtexts } 191 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xitems, xtexts, xvalues) \ 192 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ 193 .mask = xmask, .items = xitems, .texts = xtexts, .values = xvalues} 194 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \ 195 SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xitems, xtexts, xvalues) 196 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \ 197 { .reg = xreg, .shift_l = xshift, .shift_r = xshift, \ 198 .mask = xmask, .items = xitems, .texts = xtexts, \ 199 .values = xvalues, .autodisable = 1} 200 #define SOC_ENUM_SINGLE_VIRT(xitems, xtexts) \ 201 SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, xitems, xtexts) 202 #define SOC_ENUM(xname, xenum) \ 203 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ 204 .info = snd_soc_info_enum_double, \ 205 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \ 206 .private_value = (unsigned long)&xenum } 207 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\ 208 xhandler_get, xhandler_put) \ 209 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 210 .info = snd_soc_info_volsw, \ 211 .get = xhandler_get, .put = xhandler_put, \ 212 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) } 213 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\ 214 xhandler_get, xhandler_put) \ 215 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 216 .info = snd_soc_info_volsw, \ 217 .get = xhandler_get, .put = xhandler_put, \ 218 .private_value = \ 219 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) } 220 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\ 221 xhandler_get, xhandler_put, tlv_array) \ 222 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 223 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 224 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 225 .tlv.p = (tlv_array), \ 226 .info = snd_soc_info_volsw, \ 227 .get = xhandler_get, .put = xhandler_put, \ 228 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) } 229 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\ 230 xhandler_get, xhandler_put, tlv_array) \ 231 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 232 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 233 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 234 .tlv.p = (tlv_array), \ 235 .info = snd_soc_info_volsw, \ 236 .get = xhandler_get, .put = xhandler_put, \ 237 .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \ 238 xmax, xinvert, 0) } 239 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\ 240 xhandler_get, xhandler_put, tlv_array) \ 241 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 242 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 243 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 244 .tlv.p = (tlv_array), \ 245 .info = snd_soc_info_volsw, \ 246 .get = xhandler_get, .put = xhandler_put, \ 247 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 248 xmax, xinvert) } 249 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \ 250 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 251 .info = snd_soc_info_bool_ext, \ 252 .get = xhandler_get, .put = xhandler_put, \ 253 .private_value = xdata } 254 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ 255 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 256 .info = snd_soc_info_enum_double, \ 257 .get = xhandler_get, .put = xhandler_put, \ 258 .private_value = (unsigned long)&xenum } 259 #define SOC_VALUE_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ 260 SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) 261 262 #define SND_SOC_BYTES(xname, xbase, xregs) \ 263 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 264 .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \ 265 .put = snd_soc_bytes_put, .private_value = \ 266 ((unsigned long)&(struct soc_bytes) \ 267 {.base = xbase, .num_regs = xregs }) } 268 269 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask) \ 270 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 271 .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \ 272 .put = snd_soc_bytes_put, .private_value = \ 273 ((unsigned long)&(struct soc_bytes) \ 274 {.base = xbase, .num_regs = xregs, \ 275 .mask = xmask }) } 276 277 #define SND_SOC_BYTES_EXT(xname, xcount, xhandler_get, xhandler_put) \ 278 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 279 .info = snd_soc_bytes_info_ext, \ 280 .get = xhandler_get, .put = xhandler_put, \ 281 .private_value = (unsigned long)&(struct soc_bytes_ext) \ 282 {.max = xcount} } 283 #define SND_SOC_BYTES_TLV(xname, xcount, xhandler_get, xhandler_put) \ 284 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 285 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE | \ 286 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \ 287 .tlv.c = (snd_soc_bytes_tlv_callback), \ 288 .info = snd_soc_bytes_info_ext, \ 289 .private_value = (unsigned long)&(struct soc_bytes_ext) \ 290 {.max = xcount, .get = xhandler_get, .put = xhandler_put, } } 291 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \ 292 xmin, xmax, xinvert) \ 293 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 294 .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \ 295 .put = snd_soc_put_xr_sx, \ 296 .private_value = (unsigned long)&(struct soc_mreg_control) \ 297 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \ 298 .invert = xinvert, .min = xmin, .max = xmax} } 299 300 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \ 301 SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \ 302 snd_soc_get_strobe, snd_soc_put_strobe) 303 304 /* 305 * Simplified versions of above macros, declaring a struct and calculating 306 * ARRAY_SIZE internally 307 */ 308 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \ 309 const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \ 310 ARRAY_SIZE(xtexts), xtexts) 311 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \ 312 SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts) 313 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \ 314 const struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts) 315 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \ 316 const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \ 317 ARRAY_SIZE(xtexts), xtexts, xvalues) 318 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \ 319 SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues) 320 321 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \ 322 const struct soc_enum name = SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, \ 323 xshift, xmask, ARRAY_SIZE(xtexts), xtexts, xvalues) 324 325 #define SOC_ENUM_SINGLE_VIRT_DECL(name, xtexts) \ 326 const struct soc_enum name = SOC_ENUM_SINGLE_VIRT(ARRAY_SIZE(xtexts), xtexts) 327 328 /* 329 * Component probe and remove ordering levels for components with runtime 330 * dependencies. 331 */ 332 #define SND_SOC_COMP_ORDER_FIRST -2 333 #define SND_SOC_COMP_ORDER_EARLY -1 334 #define SND_SOC_COMP_ORDER_NORMAL 0 335 #define SND_SOC_COMP_ORDER_LATE 1 336 #define SND_SOC_COMP_ORDER_LAST 2 337 338 /* 339 * Bias levels 340 * 341 * @ON: Bias is fully on for audio playback and capture operations. 342 * @PREPARE: Prepare for audio operations. Called before DAPM switching for 343 * stream start and stop operations. 344 * @STANDBY: Low power standby state when no playback/capture operations are 345 * in progress. NOTE: The transition time between STANDBY and ON 346 * should be as fast as possible and no longer than 10ms. 347 * @OFF: Power Off. No restrictions on transition times. 348 */ 349 enum snd_soc_bias_level { 350 SND_SOC_BIAS_OFF = 0, 351 SND_SOC_BIAS_STANDBY = 1, 352 SND_SOC_BIAS_PREPARE = 2, 353 SND_SOC_BIAS_ON = 3, 354 }; 355 356 struct device_node; 357 struct snd_jack; 358 struct snd_soc_card; 359 struct snd_soc_pcm_stream; 360 struct snd_soc_ops; 361 struct snd_soc_pcm_runtime; 362 struct snd_soc_dai; 363 struct snd_soc_dai_driver; 364 struct snd_soc_platform; 365 struct snd_soc_dai_link; 366 struct snd_soc_platform_driver; 367 struct snd_soc_codec; 368 struct snd_soc_codec_driver; 369 struct snd_soc_component; 370 struct snd_soc_component_driver; 371 struct soc_enum; 372 struct snd_soc_jack; 373 struct snd_soc_jack_zone; 374 struct snd_soc_jack_pin; 375 #include <sound/soc-dapm.h> 376 #include <sound/soc-dpcm.h> 377 378 struct snd_soc_jack_gpio; 379 380 typedef int (*hw_write_t)(void *,const char* ,int); 381 382 enum snd_soc_pcm_subclass { 383 SND_SOC_PCM_CLASS_PCM = 0, 384 SND_SOC_PCM_CLASS_BE = 1, 385 }; 386 387 enum snd_soc_card_subclass { 388 SND_SOC_CARD_CLASS_INIT = 0, 389 SND_SOC_CARD_CLASS_RUNTIME = 1, 390 }; 391 392 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, 393 int source, unsigned int freq, int dir); 394 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, 395 unsigned int freq_in, unsigned int freq_out); 396 397 int snd_soc_register_card(struct snd_soc_card *card); 398 int snd_soc_unregister_card(struct snd_soc_card *card); 399 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card); 400 #ifdef CONFIG_PM_SLEEP 401 int snd_soc_suspend(struct device *dev); 402 int snd_soc_resume(struct device *dev); 403 #else 404 static inline int snd_soc_suspend(struct device *dev) 405 { 406 return 0; 407 } 408 409 static inline int snd_soc_resume(struct device *dev) 410 { 411 return 0; 412 } 413 #endif 414 int snd_soc_poweroff(struct device *dev); 415 int snd_soc_register_platform(struct device *dev, 416 const struct snd_soc_platform_driver *platform_drv); 417 int devm_snd_soc_register_platform(struct device *dev, 418 const struct snd_soc_platform_driver *platform_drv); 419 void snd_soc_unregister_platform(struct device *dev); 420 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, 421 const struct snd_soc_platform_driver *platform_drv); 422 void snd_soc_remove_platform(struct snd_soc_platform *platform); 423 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev); 424 int snd_soc_register_codec(struct device *dev, 425 const struct snd_soc_codec_driver *codec_drv, 426 struct snd_soc_dai_driver *dai_drv, int num_dai); 427 void snd_soc_unregister_codec(struct device *dev); 428 int snd_soc_register_component(struct device *dev, 429 const struct snd_soc_component_driver *cmpnt_drv, 430 struct snd_soc_dai_driver *dai_drv, int num_dai); 431 int devm_snd_soc_register_component(struct device *dev, 432 const struct snd_soc_component_driver *cmpnt_drv, 433 struct snd_soc_dai_driver *dai_drv, int num_dai); 434 void snd_soc_unregister_component(struct device *dev); 435 int snd_soc_cache_init(struct snd_soc_codec *codec); 436 int snd_soc_cache_exit(struct snd_soc_codec *codec); 437 438 int snd_soc_platform_read(struct snd_soc_platform *platform, 439 unsigned int reg); 440 int snd_soc_platform_write(struct snd_soc_platform *platform, 441 unsigned int reg, unsigned int val); 442 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); 443 int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num); 444 445 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, 446 const char *dai_link, int stream); 447 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, 448 const char *dai_link); 449 450 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd); 451 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream); 452 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream); 453 454 int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, 455 unsigned int dai_fmt); 456 457 /* Utility functions to get clock rates from various things */ 458 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); 459 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); 460 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots); 461 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); 462 463 /* set runtime hw params */ 464 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, 465 const struct snd_pcm_hardware *hw); 466 467 int snd_soc_platform_trigger(struct snd_pcm_substream *substream, 468 int cmd, struct snd_soc_platform *platform); 469 470 int soc_dai_hw_params(struct snd_pcm_substream *substream, 471 struct snd_pcm_hw_params *params, 472 struct snd_soc_dai *dai); 473 474 /* Jack reporting */ 475 int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type, 476 struct snd_soc_jack *jack, struct snd_soc_jack_pin *pins, 477 unsigned int num_pins); 478 479 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); 480 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, 481 struct snd_soc_jack_pin *pins); 482 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, 483 struct notifier_block *nb); 484 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, 485 struct notifier_block *nb); 486 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count, 487 struct snd_soc_jack_zone *zones); 488 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage); 489 #ifdef CONFIG_GPIOLIB 490 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 491 struct snd_soc_jack_gpio *gpios); 492 int snd_soc_jack_add_gpiods(struct device *gpiod_dev, 493 struct snd_soc_jack *jack, 494 int count, struct snd_soc_jack_gpio *gpios); 495 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, 496 struct snd_soc_jack_gpio *gpios); 497 #else 498 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 499 struct snd_soc_jack_gpio *gpios) 500 { 501 return 0; 502 } 503 504 static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev, 505 struct snd_soc_jack *jack, 506 int count, 507 struct snd_soc_jack_gpio *gpios) 508 { 509 return 0; 510 } 511 512 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, 513 struct snd_soc_jack_gpio *gpios) 514 { 515 } 516 #endif 517 518 /* codec register bit access */ 519 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned int reg, 520 unsigned int mask, unsigned int value); 521 int snd_soc_update_bits_locked(struct snd_soc_codec *codec, 522 unsigned int reg, unsigned int mask, 523 unsigned int value); 524 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg, 525 unsigned int mask, unsigned int value); 526 527 #ifdef CONFIG_SND_SOC_AC97_BUS 528 struct snd_ac97 *snd_soc_alloc_ac97_codec(struct snd_soc_codec *codec); 529 struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec); 530 void snd_soc_free_ac97_codec(struct snd_ac97 *ac97); 531 532 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); 533 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, 534 struct platform_device *pdev); 535 536 extern struct snd_ac97_bus_ops *soc_ac97_ops; 537 #else 538 static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, 539 struct platform_device *pdev) 540 { 541 return 0; 542 } 543 544 static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops) 545 { 546 return 0; 547 } 548 #endif 549 550 /* 551 *Controls 552 */ 553 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, 554 void *data, const char *long_name, 555 const char *prefix); 556 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, 557 const char *name); 558 int snd_soc_add_component_controls(struct snd_soc_component *component, 559 const struct snd_kcontrol_new *controls, unsigned int num_controls); 560 int snd_soc_add_codec_controls(struct snd_soc_codec *codec, 561 const struct snd_kcontrol_new *controls, unsigned int num_controls); 562 int snd_soc_add_platform_controls(struct snd_soc_platform *platform, 563 const struct snd_kcontrol_new *controls, unsigned int num_controls); 564 int snd_soc_add_card_controls(struct snd_soc_card *soc_card, 565 const struct snd_kcontrol_new *controls, int num_controls); 566 int snd_soc_add_dai_controls(struct snd_soc_dai *dai, 567 const struct snd_kcontrol_new *controls, int num_controls); 568 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, 569 struct snd_ctl_elem_info *uinfo); 570 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, 571 struct snd_ctl_elem_value *ucontrol); 572 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, 573 struct snd_ctl_elem_value *ucontrol); 574 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, 575 struct snd_ctl_elem_info *uinfo); 576 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info 577 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, 578 struct snd_ctl_elem_value *ucontrol); 579 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, 580 struct snd_ctl_elem_value *ucontrol); 581 #define snd_soc_get_volsw_2r snd_soc_get_volsw 582 #define snd_soc_put_volsw_2r snd_soc_put_volsw 583 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, 584 struct snd_ctl_elem_value *ucontrol); 585 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, 586 struct snd_ctl_elem_value *ucontrol); 587 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, 588 struct snd_ctl_elem_info *uinfo); 589 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, 590 struct snd_ctl_elem_value *ucontrol); 591 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, 592 struct snd_ctl_elem_value *ucontrol); 593 int snd_soc_limit_volume(struct snd_soc_codec *codec, 594 const char *name, int max); 595 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, 596 struct snd_ctl_elem_info *uinfo); 597 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, 598 struct snd_ctl_elem_value *ucontrol); 599 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, 600 struct snd_ctl_elem_value *ucontrol); 601 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, 602 struct snd_ctl_elem_info *ucontrol); 603 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, 604 unsigned int size, unsigned int __user *tlv); 605 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, 606 struct snd_ctl_elem_info *uinfo); 607 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, 608 struct snd_ctl_elem_value *ucontrol); 609 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, 610 struct snd_ctl_elem_value *ucontrol); 611 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, 612 struct snd_ctl_elem_value *ucontrol); 613 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, 614 struct snd_ctl_elem_value *ucontrol); 615 616 /** 617 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection 618 * 619 * @pin: name of the pin to update 620 * @mask: bits to check for in reported jack status 621 * @invert: if non-zero then pin is enabled when status is not reported 622 */ 623 struct snd_soc_jack_pin { 624 struct list_head list; 625 const char *pin; 626 int mask; 627 bool invert; 628 }; 629 630 /** 631 * struct snd_soc_jack_zone - Describes voltage zones of jack detection 632 * 633 * @min_mv: start voltage in mv 634 * @max_mv: end voltage in mv 635 * @jack_type: type of jack that is expected for this voltage 636 * @debounce_time: debounce_time for jack, codec driver should wait for this 637 * duration before reading the adc for voltages 638 * @:list: list container 639 */ 640 struct snd_soc_jack_zone { 641 unsigned int min_mv; 642 unsigned int max_mv; 643 unsigned int jack_type; 644 unsigned int debounce_time; 645 struct list_head list; 646 }; 647 648 /** 649 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection 650 * 651 * @gpio: legacy gpio number 652 * @idx: gpio descriptor index within the function of the GPIO 653 * consumer device 654 * @gpiod_dev GPIO consumer device 655 * @name: gpio name. Also as connection ID for the GPIO consumer 656 * device function name lookup 657 * @report: value to report when jack detected 658 * @invert: report presence in low state 659 * @debouce_time: debouce time in ms 660 * @wake: enable as wake source 661 * @jack_status_check: callback function which overrides the detection 662 * to provide more complex checks (eg, reading an 663 * ADC). 664 */ 665 struct snd_soc_jack_gpio { 666 unsigned int gpio; 667 unsigned int idx; 668 struct device *gpiod_dev; 669 const char *name; 670 int report; 671 int invert; 672 int debounce_time; 673 bool wake; 674 675 struct snd_soc_jack *jack; 676 struct delayed_work work; 677 struct gpio_desc *desc; 678 679 void *data; 680 int (*jack_status_check)(void *data); 681 }; 682 683 struct snd_soc_jack { 684 struct mutex mutex; 685 struct snd_jack *jack; 686 struct snd_soc_card *card; 687 struct list_head pins; 688 int status; 689 struct blocking_notifier_head notifier; 690 struct list_head jack_zones; 691 }; 692 693 /* SoC PCM stream information */ 694 struct snd_soc_pcm_stream { 695 const char *stream_name; 696 u64 formats; /* SNDRV_PCM_FMTBIT_* */ 697 unsigned int rates; /* SNDRV_PCM_RATE_* */ 698 unsigned int rate_min; /* min rate */ 699 unsigned int rate_max; /* max rate */ 700 unsigned int channels_min; /* min channels */ 701 unsigned int channels_max; /* max channels */ 702 unsigned int sig_bits; /* number of bits of content */ 703 }; 704 705 /* SoC audio ops */ 706 struct snd_soc_ops { 707 int (*startup)(struct snd_pcm_substream *); 708 void (*shutdown)(struct snd_pcm_substream *); 709 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); 710 int (*hw_free)(struct snd_pcm_substream *); 711 int (*prepare)(struct snd_pcm_substream *); 712 int (*trigger)(struct snd_pcm_substream *, int); 713 }; 714 715 struct snd_soc_compr_ops { 716 int (*startup)(struct snd_compr_stream *); 717 void (*shutdown)(struct snd_compr_stream *); 718 int (*set_params)(struct snd_compr_stream *); 719 int (*trigger)(struct snd_compr_stream *); 720 }; 721 722 /* component interface */ 723 struct snd_soc_component_driver { 724 const char *name; 725 726 /* Default control and setup, added after probe() is run */ 727 const struct snd_kcontrol_new *controls; 728 unsigned int num_controls; 729 const struct snd_soc_dapm_widget *dapm_widgets; 730 unsigned int num_dapm_widgets; 731 const struct snd_soc_dapm_route *dapm_routes; 732 unsigned int num_dapm_routes; 733 734 int (*probe)(struct snd_soc_component *); 735 void (*remove)(struct snd_soc_component *); 736 737 /* DT */ 738 int (*of_xlate_dai_name)(struct snd_soc_component *component, 739 struct of_phandle_args *args, 740 const char **dai_name); 741 void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type, 742 int subseq); 743 int (*stream_event)(struct snd_soc_component *, int event); 744 745 /* probe ordering - for components with runtime dependencies */ 746 int probe_order; 747 int remove_order; 748 }; 749 750 struct snd_soc_component { 751 const char *name; 752 int id; 753 const char *name_prefix; 754 struct device *dev; 755 struct snd_soc_card *card; 756 757 unsigned int active; 758 759 unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */ 760 unsigned int registered_as_component:1; 761 unsigned int probed:1; 762 763 struct list_head list; 764 765 struct snd_soc_dai_driver *dai_drv; 766 int num_dai; 767 768 const struct snd_soc_component_driver *driver; 769 770 struct list_head dai_list; 771 772 int (*read)(struct snd_soc_component *, unsigned int, unsigned int *); 773 int (*write)(struct snd_soc_component *, unsigned int, unsigned int); 774 775 struct regmap *regmap; 776 int val_bytes; 777 778 struct mutex io_mutex; 779 780 /* attached dynamic objects */ 781 struct list_head dobj_list; 782 783 #ifdef CONFIG_DEBUG_FS 784 struct dentry *debugfs_root; 785 #endif 786 787 /* 788 * DO NOT use any of the fields below in drivers, they are temporary and 789 * are going to be removed again soon. If you use them in driver code the 790 * driver will be marked as BROKEN when these fields are removed. 791 */ 792 793 /* Don't use these, use snd_soc_component_get_dapm() */ 794 struct snd_soc_dapm_context dapm; 795 struct snd_soc_dapm_context *dapm_ptr; 796 797 const struct snd_kcontrol_new *controls; 798 unsigned int num_controls; 799 const struct snd_soc_dapm_widget *dapm_widgets; 800 unsigned int num_dapm_widgets; 801 const struct snd_soc_dapm_route *dapm_routes; 802 unsigned int num_dapm_routes; 803 struct snd_soc_codec *codec; 804 805 int (*probe)(struct snd_soc_component *); 806 void (*remove)(struct snd_soc_component *); 807 808 #ifdef CONFIG_DEBUG_FS 809 void (*init_debugfs)(struct snd_soc_component *component); 810 const char *debugfs_prefix; 811 #endif 812 }; 813 814 /* SoC Audio Codec device */ 815 struct snd_soc_codec { 816 struct device *dev; 817 const struct snd_soc_codec_driver *driver; 818 819 struct list_head list; 820 struct list_head card_list; 821 822 /* runtime */ 823 unsigned int cache_bypass:1; /* Suppress access to the cache */ 824 unsigned int suspended:1; /* Codec is in suspend PM state */ 825 unsigned int cache_init:1; /* codec cache has been initialized */ 826 827 /* codec IO */ 828 void *control_data; /* codec control (i2c/3wire) data */ 829 hw_write_t hw_write; 830 void *reg_cache; 831 832 /* component */ 833 struct snd_soc_component component; 834 835 /* Don't access this directly, use snd_soc_codec_get_dapm() */ 836 struct snd_soc_dapm_context dapm; 837 838 #ifdef CONFIG_DEBUG_FS 839 struct dentry *debugfs_reg; 840 #endif 841 }; 842 843 /* codec driver */ 844 struct snd_soc_codec_driver { 845 846 /* driver ops */ 847 int (*probe)(struct snd_soc_codec *); 848 int (*remove)(struct snd_soc_codec *); 849 int (*suspend)(struct snd_soc_codec *); 850 int (*resume)(struct snd_soc_codec *); 851 struct snd_soc_component_driver component_driver; 852 853 /* Default control and setup, added after probe() is run */ 854 const struct snd_kcontrol_new *controls; 855 int num_controls; 856 const struct snd_soc_dapm_widget *dapm_widgets; 857 int num_dapm_widgets; 858 const struct snd_soc_dapm_route *dapm_routes; 859 int num_dapm_routes; 860 861 /* codec wide operations */ 862 int (*set_sysclk)(struct snd_soc_codec *codec, 863 int clk_id, int source, unsigned int freq, int dir); 864 int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source, 865 unsigned int freq_in, unsigned int freq_out); 866 867 /* codec IO */ 868 struct regmap *(*get_regmap)(struct device *); 869 unsigned int (*read)(struct snd_soc_codec *, unsigned int); 870 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); 871 unsigned int reg_cache_size; 872 short reg_cache_step; 873 short reg_word_size; 874 const void *reg_cache_default; 875 876 /* codec bias level */ 877 int (*set_bias_level)(struct snd_soc_codec *, 878 enum snd_soc_bias_level level); 879 bool idle_bias_off; 880 bool suspend_bias_off; 881 882 void (*seq_notifier)(struct snd_soc_dapm_context *, 883 enum snd_soc_dapm_type, int); 884 885 bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */ 886 }; 887 888 /* SoC platform interface */ 889 struct snd_soc_platform_driver { 890 891 int (*probe)(struct snd_soc_platform *); 892 int (*remove)(struct snd_soc_platform *); 893 struct snd_soc_component_driver component_driver; 894 895 /* pcm creation and destruction */ 896 int (*pcm_new)(struct snd_soc_pcm_runtime *); 897 void (*pcm_free)(struct snd_pcm *); 898 899 /* 900 * For platform caused delay reporting. 901 * Optional. 902 */ 903 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, 904 struct snd_soc_dai *); 905 906 /* platform stream pcm ops */ 907 const struct snd_pcm_ops *ops; 908 909 /* platform stream compress ops */ 910 const struct snd_compr_ops *compr_ops; 911 912 int (*bespoke_trigger)(struct snd_pcm_substream *, int); 913 }; 914 915 struct snd_soc_dai_link_component { 916 const char *name; 917 struct device_node *of_node; 918 const char *dai_name; 919 }; 920 921 struct snd_soc_platform { 922 struct device *dev; 923 const struct snd_soc_platform_driver *driver; 924 925 struct list_head list; 926 927 struct snd_soc_component component; 928 }; 929 930 struct snd_soc_dai_link { 931 /* config - must be set by machine driver */ 932 const char *name; /* Codec name */ 933 const char *stream_name; /* Stream name */ 934 /* 935 * You MAY specify the link's CPU-side device, either by device name, 936 * or by DT/OF node, but not both. If this information is omitted, 937 * the CPU-side DAI is matched using .cpu_dai_name only, which hence 938 * must be globally unique. These fields are currently typically used 939 * only for codec to codec links, or systems using device tree. 940 */ 941 const char *cpu_name; 942 struct device_node *cpu_of_node; 943 /* 944 * You MAY specify the DAI name of the CPU DAI. If this information is 945 * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node 946 * only, which only works well when that device exposes a single DAI. 947 */ 948 const char *cpu_dai_name; 949 /* 950 * You MUST specify the link's codec, either by device name, or by 951 * DT/OF node, but not both. 952 */ 953 const char *codec_name; 954 struct device_node *codec_of_node; 955 /* You MUST specify the DAI name within the codec */ 956 const char *codec_dai_name; 957 958 struct snd_soc_dai_link_component *codecs; 959 unsigned int num_codecs; 960 961 /* 962 * You MAY specify the link's platform/PCM/DMA driver, either by 963 * device name, or by DT/OF node, but not both. Some forms of link 964 * do not need a platform. 965 */ 966 const char *platform_name; 967 struct device_node *platform_of_node; 968 int be_id; /* optional ID for machine driver BE identification */ 969 970 const struct snd_soc_pcm_stream *params; 971 unsigned int num_params; 972 973 unsigned int dai_fmt; /* format to set on init */ 974 975 enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */ 976 977 /* codec/machine specific init - e.g. add machine controls */ 978 int (*init)(struct snd_soc_pcm_runtime *rtd); 979 980 /* optional hw_params re-writing for BE and FE sync */ 981 int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd, 982 struct snd_pcm_hw_params *params); 983 984 /* machine stream operations */ 985 const struct snd_soc_ops *ops; 986 const struct snd_soc_compr_ops *compr_ops; 987 988 /* For unidirectional dai links */ 989 bool playback_only; 990 bool capture_only; 991 992 /* Mark this pcm with non atomic ops */ 993 bool nonatomic; 994 995 /* Keep DAI active over suspend */ 996 unsigned int ignore_suspend:1; 997 998 /* Symmetry requirements */ 999 unsigned int symmetric_rates:1; 1000 unsigned int symmetric_channels:1; 1001 unsigned int symmetric_samplebits:1; 1002 1003 /* Do not create a PCM for this DAI link (Backend link) */ 1004 unsigned int no_pcm:1; 1005 1006 /* This DAI link can route to other DAI links at runtime (Frontend)*/ 1007 unsigned int dynamic:1; 1008 1009 /* DPCM capture and Playback support */ 1010 unsigned int dpcm_capture:1; 1011 unsigned int dpcm_playback:1; 1012 1013 /* DPCM used FE & BE merged format */ 1014 unsigned int dpcm_merged_format:1; 1015 1016 /* pmdown_time is ignored at stop */ 1017 unsigned int ignore_pmdown_time:1; 1018 }; 1019 1020 struct snd_soc_codec_conf { 1021 /* 1022 * specify device either by device name, or by 1023 * DT/OF node, but not both. 1024 */ 1025 const char *dev_name; 1026 struct device_node *of_node; 1027 1028 /* 1029 * optional map of kcontrol, widget and path name prefixes that are 1030 * associated per device 1031 */ 1032 const char *name_prefix; 1033 }; 1034 1035 struct snd_soc_aux_dev { 1036 const char *name; /* Codec name */ 1037 1038 /* 1039 * specify multi-codec either by device name, or by 1040 * DT/OF node, but not both. 1041 */ 1042 const char *codec_name; 1043 struct device_node *codec_of_node; 1044 1045 /* codec/machine specific init - e.g. add machine controls */ 1046 int (*init)(struct snd_soc_component *component); 1047 }; 1048 1049 /* SoC card */ 1050 struct snd_soc_card { 1051 const char *name; 1052 const char *long_name; 1053 const char *driver_name; 1054 struct device *dev; 1055 struct snd_card *snd_card; 1056 struct module *owner; 1057 1058 struct mutex mutex; 1059 struct mutex dapm_mutex; 1060 1061 bool instantiated; 1062 1063 int (*probe)(struct snd_soc_card *card); 1064 int (*late_probe)(struct snd_soc_card *card); 1065 int (*remove)(struct snd_soc_card *card); 1066 1067 /* the pre and post PM functions are used to do any PM work before and 1068 * after the codec and DAI's do any PM work. */ 1069 int (*suspend_pre)(struct snd_soc_card *card); 1070 int (*suspend_post)(struct snd_soc_card *card); 1071 int (*resume_pre)(struct snd_soc_card *card); 1072 int (*resume_post)(struct snd_soc_card *card); 1073 1074 /* callbacks */ 1075 int (*set_bias_level)(struct snd_soc_card *, 1076 struct snd_soc_dapm_context *dapm, 1077 enum snd_soc_bias_level level); 1078 int (*set_bias_level_post)(struct snd_soc_card *, 1079 struct snd_soc_dapm_context *dapm, 1080 enum snd_soc_bias_level level); 1081 1082 long pmdown_time; 1083 1084 /* CPU <--> Codec DAI links */ 1085 struct snd_soc_dai_link *dai_link; 1086 int num_links; 1087 struct snd_soc_pcm_runtime *rtd; 1088 int num_rtd; 1089 1090 /* optional codec specific configuration */ 1091 struct snd_soc_codec_conf *codec_conf; 1092 int num_configs; 1093 1094 /* 1095 * optional auxiliary devices such as amplifiers or codecs with DAI 1096 * link unused 1097 */ 1098 struct snd_soc_aux_dev *aux_dev; 1099 int num_aux_devs; 1100 struct snd_soc_pcm_runtime *rtd_aux; 1101 int num_aux_rtd; 1102 1103 const struct snd_kcontrol_new *controls; 1104 int num_controls; 1105 1106 /* 1107 * Card-specific routes and widgets. 1108 * Note: of_dapm_xxx for Device Tree; Otherwise for driver build-in. 1109 */ 1110 const struct snd_soc_dapm_widget *dapm_widgets; 1111 int num_dapm_widgets; 1112 const struct snd_soc_dapm_route *dapm_routes; 1113 int num_dapm_routes; 1114 const struct snd_soc_dapm_widget *of_dapm_widgets; 1115 int num_of_dapm_widgets; 1116 const struct snd_soc_dapm_route *of_dapm_routes; 1117 int num_of_dapm_routes; 1118 bool fully_routed; 1119 1120 struct work_struct deferred_resume_work; 1121 1122 /* lists of probed devices belonging to this card */ 1123 struct list_head codec_dev_list; 1124 1125 struct list_head widgets; 1126 struct list_head paths; 1127 struct list_head dapm_list; 1128 struct list_head dapm_dirty; 1129 1130 /* attached dynamic objects */ 1131 struct list_head dobj_list; 1132 1133 /* Generic DAPM context for the card */ 1134 struct snd_soc_dapm_context dapm; 1135 struct snd_soc_dapm_stats dapm_stats; 1136 struct snd_soc_dapm_update *update; 1137 1138 #ifdef CONFIG_DEBUG_FS 1139 struct dentry *debugfs_card_root; 1140 struct dentry *debugfs_pop_time; 1141 #endif 1142 u32 pop_time; 1143 1144 void *drvdata; 1145 }; 1146 1147 /* SoC machine DAI configuration, glues a codec and cpu DAI together */ 1148 struct snd_soc_pcm_runtime { 1149 struct device *dev; 1150 struct snd_soc_card *card; 1151 struct snd_soc_dai_link *dai_link; 1152 struct mutex pcm_mutex; 1153 enum snd_soc_pcm_subclass pcm_subclass; 1154 struct snd_pcm_ops ops; 1155 1156 unsigned int dev_registered:1; 1157 1158 /* Dynamic PCM BE runtime data */ 1159 struct snd_soc_dpcm_runtime dpcm[2]; 1160 int fe_compr; 1161 1162 long pmdown_time; 1163 unsigned char pop_wait:1; 1164 1165 /* runtime devices */ 1166 struct snd_pcm *pcm; 1167 struct snd_compr *compr; 1168 struct snd_soc_codec *codec; 1169 struct snd_soc_platform *platform; 1170 struct snd_soc_dai *codec_dai; 1171 struct snd_soc_dai *cpu_dai; 1172 struct snd_soc_component *component; /* Only valid for AUX dev rtds */ 1173 1174 struct snd_soc_dai **codec_dais; 1175 unsigned int num_codecs; 1176 1177 struct delayed_work delayed_work; 1178 #ifdef CONFIG_DEBUG_FS 1179 struct dentry *debugfs_dpcm_root; 1180 struct dentry *debugfs_dpcm_state; 1181 #endif 1182 }; 1183 1184 /* mixer control */ 1185 struct soc_mixer_control { 1186 int min, max, platform_max; 1187 int reg, rreg; 1188 unsigned int shift, rshift; 1189 unsigned int sign_bit; 1190 unsigned int invert:1; 1191 unsigned int autodisable:1; 1192 struct snd_soc_dobj dobj; 1193 }; 1194 1195 struct soc_bytes { 1196 int base; 1197 int num_regs; 1198 u32 mask; 1199 }; 1200 1201 struct soc_bytes_ext { 1202 int max; 1203 struct snd_soc_dobj dobj; 1204 1205 /* used for TLV byte control */ 1206 int (*get)(unsigned int __user *bytes, unsigned int size); 1207 int (*put)(const unsigned int __user *bytes, unsigned int size); 1208 }; 1209 1210 /* multi register control */ 1211 struct soc_mreg_control { 1212 long min, max; 1213 unsigned int regbase, regcount, nbits, invert; 1214 }; 1215 1216 /* enumerated kcontrol */ 1217 struct soc_enum { 1218 int reg; 1219 unsigned char shift_l; 1220 unsigned char shift_r; 1221 unsigned int items; 1222 unsigned int mask; 1223 const char * const *texts; 1224 const unsigned int *values; 1225 unsigned int autodisable:1; 1226 struct snd_soc_dobj dobj; 1227 }; 1228 1229 /** 1230 * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in 1231 * @component: The component to cast to a CODEC 1232 * 1233 * This function must only be used on components that are known to be CODECs. 1234 * Otherwise the behavior is undefined. 1235 */ 1236 static inline struct snd_soc_codec *snd_soc_component_to_codec( 1237 struct snd_soc_component *component) 1238 { 1239 return container_of(component, struct snd_soc_codec, component); 1240 } 1241 1242 /** 1243 * snd_soc_component_to_platform() - Casts a component to the platform it is embedded in 1244 * @component: The component to cast to a platform 1245 * 1246 * This function must only be used on components that are known to be platforms. 1247 * Otherwise the behavior is undefined. 1248 */ 1249 static inline struct snd_soc_platform *snd_soc_component_to_platform( 1250 struct snd_soc_component *component) 1251 { 1252 return container_of(component, struct snd_soc_platform, component); 1253 } 1254 1255 /** 1256 * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is 1257 * embedded in 1258 * @dapm: The DAPM context to cast to the component 1259 * 1260 * This function must only be used on DAPM contexts that are known to be part of 1261 * a component (e.g. in a component driver). Otherwise the behavior is 1262 * undefined. 1263 */ 1264 static inline struct snd_soc_component *snd_soc_dapm_to_component( 1265 struct snd_soc_dapm_context *dapm) 1266 { 1267 return container_of(dapm, struct snd_soc_component, dapm); 1268 } 1269 1270 /** 1271 * snd_soc_dapm_to_codec() - Casts a DAPM context to the CODEC it is embedded in 1272 * @dapm: The DAPM context to cast to the CODEC 1273 * 1274 * This function must only be used on DAPM contexts that are known to be part of 1275 * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. 1276 */ 1277 static inline struct snd_soc_codec *snd_soc_dapm_to_codec( 1278 struct snd_soc_dapm_context *dapm) 1279 { 1280 return container_of(dapm, struct snd_soc_codec, dapm); 1281 } 1282 1283 /** 1284 * snd_soc_dapm_to_platform() - Casts a DAPM context to the platform it is 1285 * embedded in 1286 * @dapm: The DAPM context to cast to the platform. 1287 * 1288 * This function must only be used on DAPM contexts that are known to be part of 1289 * a platform (e.g. in a platform driver). Otherwise the behavior is undefined. 1290 */ 1291 static inline struct snd_soc_platform *snd_soc_dapm_to_platform( 1292 struct snd_soc_dapm_context *dapm) 1293 { 1294 return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm)); 1295 } 1296 1297 /** 1298 * snd_soc_component_get_dapm() - Returns the DAPM context associated with a 1299 * component 1300 * @component: The component for which to get the DAPM context 1301 */ 1302 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm( 1303 struct snd_soc_component *component) 1304 { 1305 return component->dapm_ptr; 1306 } 1307 1308 /** 1309 * snd_soc_codec_get_dapm() - Returns the DAPM context for the CODEC 1310 * @codec: The CODEC for which to get the DAPM context 1311 * 1312 * Note: Use this function instead of directly accessing the CODEC's dapm field 1313 */ 1314 static inline struct snd_soc_dapm_context *snd_soc_codec_get_dapm( 1315 struct snd_soc_codec *codec) 1316 { 1317 return &codec->dapm; 1318 } 1319 1320 /** 1321 * snd_soc_dapm_init_bias_level() - Initialize CODEC DAPM bias level 1322 * @dapm: The CODEC for which to initialize the DAPM bias level 1323 * @level: The DAPM level to initialize to 1324 * 1325 * Initializes the CODEC DAPM bias level. See snd_soc_dapm_init_bias_level(). 1326 */ 1327 static inline void snd_soc_codec_init_bias_level(struct snd_soc_codec *codec, 1328 enum snd_soc_bias_level level) 1329 { 1330 snd_soc_dapm_init_bias_level(snd_soc_codec_get_dapm(codec), level); 1331 } 1332 1333 /** 1334 * snd_soc_dapm_get_bias_level() - Get current CODEC DAPM bias level 1335 * @codec: The CODEC for which to get the DAPM bias level 1336 * 1337 * Returns: The current DAPM bias level of the CODEC. 1338 */ 1339 static inline enum snd_soc_bias_level snd_soc_codec_get_bias_level( 1340 struct snd_soc_codec *codec) 1341 { 1342 return snd_soc_dapm_get_bias_level(snd_soc_codec_get_dapm(codec)); 1343 } 1344 1345 /** 1346 * snd_soc_codec_force_bias_level() - Set the CODEC DAPM bias level 1347 * @codec: The CODEC for which to set the level 1348 * @level: The level to set to 1349 * 1350 * Forces the CODEC bias level to a specific state. See 1351 * snd_soc_dapm_force_bias_level(). 1352 */ 1353 static inline int snd_soc_codec_force_bias_level(struct snd_soc_codec *codec, 1354 enum snd_soc_bias_level level) 1355 { 1356 return snd_soc_dapm_force_bias_level(snd_soc_codec_get_dapm(codec), 1357 level); 1358 } 1359 1360 /** 1361 * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol 1362 * @kcontrol: The kcontrol 1363 * 1364 * This function must only be used on DAPM contexts that are known to be part of 1365 * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. 1366 */ 1367 static inline struct snd_soc_codec *snd_soc_dapm_kcontrol_codec( 1368 struct snd_kcontrol *kcontrol) 1369 { 1370 return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); 1371 } 1372 1373 /* codec IO */ 1374 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); 1375 int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, 1376 unsigned int val); 1377 1378 /** 1379 * snd_soc_cache_sync() - Sync the register cache with the hardware 1380 * @codec: CODEC to sync 1381 * 1382 * Note: This function will call regcache_sync() 1383 */ 1384 static inline int snd_soc_cache_sync(struct snd_soc_codec *codec) 1385 { 1386 return regcache_sync(codec->component.regmap); 1387 } 1388 1389 /* component IO */ 1390 int snd_soc_component_read(struct snd_soc_component *component, 1391 unsigned int reg, unsigned int *val); 1392 int snd_soc_component_write(struct snd_soc_component *component, 1393 unsigned int reg, unsigned int val); 1394 int snd_soc_component_update_bits(struct snd_soc_component *component, 1395 unsigned int reg, unsigned int mask, unsigned int val); 1396 int snd_soc_component_update_bits_async(struct snd_soc_component *component, 1397 unsigned int reg, unsigned int mask, unsigned int val); 1398 void snd_soc_component_async_complete(struct snd_soc_component *component); 1399 int snd_soc_component_test_bits(struct snd_soc_component *component, 1400 unsigned int reg, unsigned int mask, unsigned int value); 1401 1402 #ifdef CONFIG_REGMAP 1403 1404 void snd_soc_component_init_regmap(struct snd_soc_component *component, 1405 struct regmap *regmap); 1406 void snd_soc_component_exit_regmap(struct snd_soc_component *component); 1407 1408 /** 1409 * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC 1410 * @codec: The CODEC for which to initialize the regmap instance 1411 * @regmap: The regmap instance that should be used by the CODEC 1412 * 1413 * This function allows deferred assignment of the regmap instance that is 1414 * associated with the CODEC. Only use this if the regmap instance is not yet 1415 * ready when the CODEC is registered. The function must also be called before 1416 * the first IO attempt of the CODEC. 1417 */ 1418 static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec, 1419 struct regmap *regmap) 1420 { 1421 snd_soc_component_init_regmap(&codec->component, regmap); 1422 } 1423 1424 /** 1425 * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC 1426 * @codec: The CODEC for which to de-initialize the regmap instance 1427 * 1428 * Calls regmap_exit() on the regmap instance associated to the CODEC and 1429 * removes the regmap instance from the CODEC. 1430 * 1431 * This function should only be used if snd_soc_codec_init_regmap() was used to 1432 * initialize the regmap instance. 1433 */ 1434 static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec) 1435 { 1436 snd_soc_component_exit_regmap(&codec->component); 1437 } 1438 1439 #endif 1440 1441 /* device driver data */ 1442 1443 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, 1444 void *data) 1445 { 1446 card->drvdata = data; 1447 } 1448 1449 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card) 1450 { 1451 return card->drvdata; 1452 } 1453 1454 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c, 1455 void *data) 1456 { 1457 dev_set_drvdata(c->dev, data); 1458 } 1459 1460 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c) 1461 { 1462 return dev_get_drvdata(c->dev); 1463 } 1464 1465 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec, 1466 void *data) 1467 { 1468 snd_soc_component_set_drvdata(&codec->component, data); 1469 } 1470 1471 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec) 1472 { 1473 return snd_soc_component_get_drvdata(&codec->component); 1474 } 1475 1476 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform, 1477 void *data) 1478 { 1479 snd_soc_component_set_drvdata(&platform->component, data); 1480 } 1481 1482 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform) 1483 { 1484 return snd_soc_component_get_drvdata(&platform->component); 1485 } 1486 1487 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd, 1488 void *data) 1489 { 1490 dev_set_drvdata(rtd->dev, data); 1491 } 1492 1493 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd) 1494 { 1495 return dev_get_drvdata(rtd->dev); 1496 } 1497 1498 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card) 1499 { 1500 INIT_LIST_HEAD(&card->codec_dev_list); 1501 INIT_LIST_HEAD(&card->widgets); 1502 INIT_LIST_HEAD(&card->paths); 1503 INIT_LIST_HEAD(&card->dapm_list); 1504 } 1505 1506 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc) 1507 { 1508 if (mc->reg == mc->rreg && mc->shift == mc->rshift) 1509 return 0; 1510 /* 1511 * mc->reg == mc->rreg && mc->shift != mc->rshift, or 1512 * mc->reg != mc->rreg means that the control is 1513 * stereo (bits in one register or in two registers) 1514 */ 1515 return 1; 1516 } 1517 1518 static inline unsigned int snd_soc_enum_val_to_item(struct soc_enum *e, 1519 unsigned int val) 1520 { 1521 unsigned int i; 1522 1523 if (!e->values) 1524 return val; 1525 1526 for (i = 0; i < e->items; i++) 1527 if (val == e->values[i]) 1528 return i; 1529 1530 return 0; 1531 } 1532 1533 static inline unsigned int snd_soc_enum_item_to_val(struct soc_enum *e, 1534 unsigned int item) 1535 { 1536 if (!e->values) 1537 return item; 1538 1539 return e->values[item]; 1540 } 1541 1542 static inline bool snd_soc_component_is_active( 1543 struct snd_soc_component *component) 1544 { 1545 return component->active != 0; 1546 } 1547 1548 static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec) 1549 { 1550 return snd_soc_component_is_active(&codec->component); 1551 } 1552 1553 /** 1554 * snd_soc_kcontrol_component() - Returns the component that registered the 1555 * control 1556 * @kcontrol: The control for which to get the component 1557 * 1558 * Note: This function will work correctly if the control has been registered 1559 * for a component. Either with snd_soc_add_codec_controls() or 1560 * snd_soc_add_platform_controls() or via table based setup for either a 1561 * CODEC, a platform or component driver. Otherwise the behavior is undefined. 1562 */ 1563 static inline struct snd_soc_component *snd_soc_kcontrol_component( 1564 struct snd_kcontrol *kcontrol) 1565 { 1566 return snd_kcontrol_chip(kcontrol); 1567 } 1568 1569 /** 1570 * snd_soc_kcontrol_codec() - Returns the CODEC that registered the control 1571 * @kcontrol: The control for which to get the CODEC 1572 * 1573 * Note: This function will only work correctly if the control has been 1574 * registered with snd_soc_add_codec_controls() or via table based setup of 1575 * snd_soc_codec_driver. Otherwise the behavior is undefined. 1576 */ 1577 static inline struct snd_soc_codec *snd_soc_kcontrol_codec( 1578 struct snd_kcontrol *kcontrol) 1579 { 1580 return snd_soc_component_to_codec(snd_soc_kcontrol_component(kcontrol)); 1581 } 1582 1583 /** 1584 * snd_soc_kcontrol_platform() - Returns the platform that registered the control 1585 * @kcontrol: The control for which to get the platform 1586 * 1587 * Note: This function will only work correctly if the control has been 1588 * registered with snd_soc_add_platform_controls() or via table based setup of 1589 * a snd_soc_platform_driver. Otherwise the behavior is undefined. 1590 */ 1591 static inline struct snd_soc_platform *snd_soc_kcontrol_platform( 1592 struct snd_kcontrol *kcontrol) 1593 { 1594 return snd_soc_component_to_platform(snd_soc_kcontrol_component(kcontrol)); 1595 } 1596 1597 int snd_soc_util_init(void); 1598 void snd_soc_util_exit(void); 1599 1600 int snd_soc_of_parse_card_name(struct snd_soc_card *card, 1601 const char *propname); 1602 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, 1603 const char *propname); 1604 int snd_soc_of_parse_tdm_slot(struct device_node *np, 1605 unsigned int *slots, 1606 unsigned int *slot_width); 1607 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, 1608 const char *propname); 1609 unsigned int snd_soc_of_parse_daifmt(struct device_node *np, 1610 const char *prefix, 1611 struct device_node **bitclkmaster, 1612 struct device_node **framemaster); 1613 int snd_soc_of_get_dai_name(struct device_node *of_node, 1614 const char **dai_name); 1615 int snd_soc_of_get_dai_link_codecs(struct device *dev, 1616 struct device_node *of_node, 1617 struct snd_soc_dai_link *dai_link); 1618 1619 #include <sound/soc-dai.h> 1620 1621 #ifdef CONFIG_DEBUG_FS 1622 extern struct dentry *snd_soc_debugfs_root; 1623 #endif 1624 1625 extern const struct dev_pm_ops snd_soc_pm_ops; 1626 1627 /* Helper functions */ 1628 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm) 1629 { 1630 mutex_lock(&dapm->card->dapm_mutex); 1631 } 1632 1633 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm) 1634 { 1635 mutex_unlock(&dapm->card->dapm_mutex); 1636 } 1637 1638 #endif 1639