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_sx, \ 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_sx, \ 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 unsigned int id, unsigned int id_mask); 531 void snd_soc_free_ac97_codec(struct snd_ac97 *ac97); 532 533 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); 534 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, 535 struct platform_device *pdev); 536 537 extern struct snd_ac97_bus_ops *soc_ac97_ops; 538 #else 539 static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, 540 struct platform_device *pdev) 541 { 542 return 0; 543 } 544 545 static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops) 546 { 547 return 0; 548 } 549 #endif 550 551 /* 552 *Controls 553 */ 554 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, 555 void *data, const char *long_name, 556 const char *prefix); 557 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, 558 const char *name); 559 int snd_soc_add_component_controls(struct snd_soc_component *component, 560 const struct snd_kcontrol_new *controls, unsigned int num_controls); 561 int snd_soc_add_codec_controls(struct snd_soc_codec *codec, 562 const struct snd_kcontrol_new *controls, unsigned int num_controls); 563 int snd_soc_add_platform_controls(struct snd_soc_platform *platform, 564 const struct snd_kcontrol_new *controls, unsigned int num_controls); 565 int snd_soc_add_card_controls(struct snd_soc_card *soc_card, 566 const struct snd_kcontrol_new *controls, int num_controls); 567 int snd_soc_add_dai_controls(struct snd_soc_dai *dai, 568 const struct snd_kcontrol_new *controls, int num_controls); 569 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, 570 struct snd_ctl_elem_info *uinfo); 571 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, 572 struct snd_ctl_elem_value *ucontrol); 573 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, 574 struct snd_ctl_elem_value *ucontrol); 575 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, 576 struct snd_ctl_elem_info *uinfo); 577 int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol, 578 struct snd_ctl_elem_info *uinfo); 579 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info 580 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, 581 struct snd_ctl_elem_value *ucontrol); 582 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, 583 struct snd_ctl_elem_value *ucontrol); 584 #define snd_soc_get_volsw_2r snd_soc_get_volsw 585 #define snd_soc_put_volsw_2r snd_soc_put_volsw 586 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, 587 struct snd_ctl_elem_value *ucontrol); 588 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, 589 struct snd_ctl_elem_value *ucontrol); 590 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, 591 struct snd_ctl_elem_info *uinfo); 592 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, 593 struct snd_ctl_elem_value *ucontrol); 594 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, 595 struct snd_ctl_elem_value *ucontrol); 596 int snd_soc_limit_volume(struct snd_soc_codec *codec, 597 const char *name, int max); 598 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, 599 struct snd_ctl_elem_info *uinfo); 600 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, 601 struct snd_ctl_elem_value *ucontrol); 602 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, 603 struct snd_ctl_elem_value *ucontrol); 604 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, 605 struct snd_ctl_elem_info *ucontrol); 606 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, 607 unsigned int size, unsigned int __user *tlv); 608 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, 609 struct snd_ctl_elem_info *uinfo); 610 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, 611 struct snd_ctl_elem_value *ucontrol); 612 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, 613 struct snd_ctl_elem_value *ucontrol); 614 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, 615 struct snd_ctl_elem_value *ucontrol); 616 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, 617 struct snd_ctl_elem_value *ucontrol); 618 619 /** 620 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection 621 * 622 * @pin: name of the pin to update 623 * @mask: bits to check for in reported jack status 624 * @invert: if non-zero then pin is enabled when status is not reported 625 * @list: internal list entry 626 */ 627 struct snd_soc_jack_pin { 628 struct list_head list; 629 const char *pin; 630 int mask; 631 bool invert; 632 }; 633 634 /** 635 * struct snd_soc_jack_zone - Describes voltage zones of jack detection 636 * 637 * @min_mv: start voltage in mv 638 * @max_mv: end voltage in mv 639 * @jack_type: type of jack that is expected for this voltage 640 * @debounce_time: debounce_time for jack, codec driver should wait for this 641 * duration before reading the adc for voltages 642 * @list: internal list entry 643 */ 644 struct snd_soc_jack_zone { 645 unsigned int min_mv; 646 unsigned int max_mv; 647 unsigned int jack_type; 648 unsigned int debounce_time; 649 struct list_head list; 650 }; 651 652 /** 653 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection 654 * 655 * @gpio: legacy gpio number 656 * @idx: gpio descriptor index within the function of the GPIO 657 * consumer device 658 * @gpiod_dev: GPIO consumer device 659 * @name: gpio name. Also as connection ID for the GPIO consumer 660 * device function name lookup 661 * @report: value to report when jack detected 662 * @invert: report presence in low state 663 * @debounce_time: debounce time in ms 664 * @wake: enable as wake source 665 * @jack_status_check: callback function which overrides the detection 666 * to provide more complex checks (eg, reading an 667 * ADC). 668 */ 669 struct snd_soc_jack_gpio { 670 unsigned int gpio; 671 unsigned int idx; 672 struct device *gpiod_dev; 673 const char *name; 674 int report; 675 int invert; 676 int debounce_time; 677 bool wake; 678 679 /* private: */ 680 struct snd_soc_jack *jack; 681 struct delayed_work work; 682 struct gpio_desc *desc; 683 684 void *data; 685 /* public: */ 686 int (*jack_status_check)(void *data); 687 }; 688 689 struct snd_soc_jack { 690 struct mutex mutex; 691 struct snd_jack *jack; 692 struct snd_soc_card *card; 693 struct list_head pins; 694 int status; 695 struct blocking_notifier_head notifier; 696 struct list_head jack_zones; 697 }; 698 699 /* SoC PCM stream information */ 700 struct snd_soc_pcm_stream { 701 const char *stream_name; 702 u64 formats; /* SNDRV_PCM_FMTBIT_* */ 703 unsigned int rates; /* SNDRV_PCM_RATE_* */ 704 unsigned int rate_min; /* min rate */ 705 unsigned int rate_max; /* max rate */ 706 unsigned int channels_min; /* min channels */ 707 unsigned int channels_max; /* max channels */ 708 unsigned int sig_bits; /* number of bits of content */ 709 }; 710 711 /* SoC audio ops */ 712 struct snd_soc_ops { 713 int (*startup)(struct snd_pcm_substream *); 714 void (*shutdown)(struct snd_pcm_substream *); 715 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); 716 int (*hw_free)(struct snd_pcm_substream *); 717 int (*prepare)(struct snd_pcm_substream *); 718 int (*trigger)(struct snd_pcm_substream *, int); 719 }; 720 721 struct snd_soc_compr_ops { 722 int (*startup)(struct snd_compr_stream *); 723 void (*shutdown)(struct snd_compr_stream *); 724 int (*set_params)(struct snd_compr_stream *); 725 int (*trigger)(struct snd_compr_stream *); 726 }; 727 728 /* component interface */ 729 struct snd_soc_component_driver { 730 const char *name; 731 732 /* Default control and setup, added after probe() is run */ 733 const struct snd_kcontrol_new *controls; 734 unsigned int num_controls; 735 const struct snd_soc_dapm_widget *dapm_widgets; 736 unsigned int num_dapm_widgets; 737 const struct snd_soc_dapm_route *dapm_routes; 738 unsigned int num_dapm_routes; 739 740 int (*probe)(struct snd_soc_component *); 741 void (*remove)(struct snd_soc_component *); 742 743 /* DT */ 744 int (*of_xlate_dai_name)(struct snd_soc_component *component, 745 struct of_phandle_args *args, 746 const char **dai_name); 747 void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type, 748 int subseq); 749 int (*stream_event)(struct snd_soc_component *, int event); 750 751 /* probe ordering - for components with runtime dependencies */ 752 int probe_order; 753 int remove_order; 754 }; 755 756 struct snd_soc_component { 757 const char *name; 758 int id; 759 const char *name_prefix; 760 struct device *dev; 761 struct snd_soc_card *card; 762 763 unsigned int active; 764 765 unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */ 766 unsigned int registered_as_component:1; 767 768 struct list_head list; 769 770 struct snd_soc_dai_driver *dai_drv; 771 int num_dai; 772 773 const struct snd_soc_component_driver *driver; 774 775 struct list_head dai_list; 776 777 int (*read)(struct snd_soc_component *, unsigned int, unsigned int *); 778 int (*write)(struct snd_soc_component *, unsigned int, unsigned int); 779 780 struct regmap *regmap; 781 int val_bytes; 782 783 struct mutex io_mutex; 784 785 /* attached dynamic objects */ 786 struct list_head dobj_list; 787 788 #ifdef CONFIG_DEBUG_FS 789 struct dentry *debugfs_root; 790 #endif 791 792 /* 793 * DO NOT use any of the fields below in drivers, they are temporary and 794 * are going to be removed again soon. If you use them in driver code the 795 * driver will be marked as BROKEN when these fields are removed. 796 */ 797 798 /* Don't use these, use snd_soc_component_get_dapm() */ 799 struct snd_soc_dapm_context dapm; 800 801 const struct snd_kcontrol_new *controls; 802 unsigned int num_controls; 803 const struct snd_soc_dapm_widget *dapm_widgets; 804 unsigned int num_dapm_widgets; 805 const struct snd_soc_dapm_route *dapm_routes; 806 unsigned int num_dapm_routes; 807 struct snd_soc_codec *codec; 808 809 int (*probe)(struct snd_soc_component *); 810 void (*remove)(struct snd_soc_component *); 811 812 #ifdef CONFIG_DEBUG_FS 813 void (*init_debugfs)(struct snd_soc_component *component); 814 const char *debugfs_prefix; 815 #endif 816 }; 817 818 /* SoC Audio Codec device */ 819 struct snd_soc_codec { 820 struct device *dev; 821 const struct snd_soc_codec_driver *driver; 822 823 struct list_head list; 824 struct list_head card_list; 825 826 /* runtime */ 827 unsigned int cache_bypass:1; /* Suppress access to the cache */ 828 unsigned int suspended:1; /* Codec is in suspend PM state */ 829 unsigned int cache_init:1; /* codec cache has been initialized */ 830 831 /* codec IO */ 832 void *control_data; /* codec control (i2c/3wire) data */ 833 hw_write_t hw_write; 834 void *reg_cache; 835 836 /* component */ 837 struct snd_soc_component component; 838 839 #ifdef CONFIG_DEBUG_FS 840 struct dentry *debugfs_reg; 841 #endif 842 }; 843 844 /* codec driver */ 845 struct snd_soc_codec_driver { 846 847 /* driver ops */ 848 int (*probe)(struct snd_soc_codec *); 849 int (*remove)(struct snd_soc_codec *); 850 int (*suspend)(struct snd_soc_codec *); 851 int (*resume)(struct snd_soc_codec *); 852 struct snd_soc_component_driver component_driver; 853 854 /* Default control and setup, added after probe() is run */ 855 const struct snd_kcontrol_new *controls; 856 int num_controls; 857 const struct snd_soc_dapm_widget *dapm_widgets; 858 int num_dapm_widgets; 859 const struct snd_soc_dapm_route *dapm_routes; 860 int num_dapm_routes; 861 862 /* codec wide operations */ 863 int (*set_sysclk)(struct snd_soc_codec *codec, 864 int clk_id, int source, unsigned int freq, int dir); 865 int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source, 866 unsigned int freq_in, unsigned int freq_out); 867 868 /* codec IO */ 869 struct regmap *(*get_regmap)(struct device *); 870 unsigned int (*read)(struct snd_soc_codec *, unsigned int); 871 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); 872 unsigned int reg_cache_size; 873 short reg_cache_step; 874 short reg_word_size; 875 const void *reg_cache_default; 876 877 /* codec bias level */ 878 int (*set_bias_level)(struct snd_soc_codec *, 879 enum snd_soc_bias_level level); 880 bool idle_bias_off; 881 bool suspend_bias_off; 882 883 void (*seq_notifier)(struct snd_soc_dapm_context *, 884 enum snd_soc_dapm_type, int); 885 886 bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */ 887 }; 888 889 /* SoC platform interface */ 890 struct snd_soc_platform_driver { 891 892 int (*probe)(struct snd_soc_platform *); 893 int (*remove)(struct snd_soc_platform *); 894 struct snd_soc_component_driver component_driver; 895 896 /* pcm creation and destruction */ 897 int (*pcm_new)(struct snd_soc_pcm_runtime *); 898 void (*pcm_free)(struct snd_pcm *); 899 900 /* 901 * For platform caused delay reporting. 902 * Optional. 903 */ 904 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, 905 struct snd_soc_dai *); 906 907 /* platform stream pcm ops */ 908 const struct snd_pcm_ops *ops; 909 910 /* platform stream compress ops */ 911 const struct snd_compr_ops *compr_ops; 912 913 int (*bespoke_trigger)(struct snd_pcm_substream *, int); 914 }; 915 916 struct snd_soc_dai_link_component { 917 const char *name; 918 struct device_node *of_node; 919 const char *dai_name; 920 }; 921 922 struct snd_soc_platform { 923 struct device *dev; 924 const struct snd_soc_platform_driver *driver; 925 926 struct list_head list; 927 928 struct snd_soc_component component; 929 }; 930 931 struct snd_soc_dai_link { 932 /* config - must be set by machine driver */ 933 const char *name; /* Codec name */ 934 const char *stream_name; /* Stream name */ 935 /* 936 * You MAY specify the link's CPU-side device, either by device name, 937 * or by DT/OF node, but not both. If this information is omitted, 938 * the CPU-side DAI is matched using .cpu_dai_name only, which hence 939 * must be globally unique. These fields are currently typically used 940 * only for codec to codec links, or systems using device tree. 941 */ 942 const char *cpu_name; 943 struct device_node *cpu_of_node; 944 /* 945 * You MAY specify the DAI name of the CPU DAI. If this information is 946 * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node 947 * only, which only works well when that device exposes a single DAI. 948 */ 949 const char *cpu_dai_name; 950 /* 951 * You MUST specify the link's codec, either by device name, or by 952 * DT/OF node, but not both. 953 */ 954 const char *codec_name; 955 struct device_node *codec_of_node; 956 /* You MUST specify the DAI name within the codec */ 957 const char *codec_dai_name; 958 959 struct snd_soc_dai_link_component *codecs; 960 unsigned int num_codecs; 961 962 /* 963 * You MAY specify the link's platform/PCM/DMA driver, either by 964 * device name, or by DT/OF node, but not both. Some forms of link 965 * do not need a platform. 966 */ 967 const char *platform_name; 968 struct device_node *platform_of_node; 969 int be_id; /* optional ID for machine driver BE identification */ 970 971 const struct snd_soc_pcm_stream *params; 972 unsigned int num_params; 973 974 unsigned int dai_fmt; /* format to set on init */ 975 976 enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */ 977 978 /* codec/machine specific init - e.g. add machine controls */ 979 int (*init)(struct snd_soc_pcm_runtime *rtd); 980 981 /* optional hw_params re-writing for BE and FE sync */ 982 int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd, 983 struct snd_pcm_hw_params *params); 984 985 /* machine stream operations */ 986 const struct snd_soc_ops *ops; 987 const struct snd_soc_compr_ops *compr_ops; 988 989 /* For unidirectional dai links */ 990 bool playback_only; 991 bool capture_only; 992 993 /* Mark this pcm with non atomic ops */ 994 bool nonatomic; 995 996 /* Keep DAI active over suspend */ 997 unsigned int ignore_suspend:1; 998 999 /* Symmetry requirements */ 1000 unsigned int symmetric_rates:1; 1001 unsigned int symmetric_channels:1; 1002 unsigned int symmetric_samplebits:1; 1003 1004 /* Do not create a PCM for this DAI link (Backend link) */ 1005 unsigned int no_pcm:1; 1006 1007 /* This DAI link can route to other DAI links at runtime (Frontend)*/ 1008 unsigned int dynamic:1; 1009 1010 /* DPCM capture and Playback support */ 1011 unsigned int dpcm_capture:1; 1012 unsigned int dpcm_playback:1; 1013 1014 /* DPCM used FE & BE merged format */ 1015 unsigned int dpcm_merged_format:1; 1016 1017 /* pmdown_time is ignored at stop */ 1018 unsigned int ignore_pmdown_time:1; 1019 }; 1020 1021 struct snd_soc_codec_conf { 1022 /* 1023 * specify device either by device name, or by 1024 * DT/OF node, but not both. 1025 */ 1026 const char *dev_name; 1027 struct device_node *of_node; 1028 1029 /* 1030 * optional map of kcontrol, widget and path name prefixes that are 1031 * associated per device 1032 */ 1033 const char *name_prefix; 1034 }; 1035 1036 struct snd_soc_aux_dev { 1037 const char *name; /* Codec name */ 1038 1039 /* 1040 * specify multi-codec either by device name, or by 1041 * DT/OF node, but not both. 1042 */ 1043 const char *codec_name; 1044 struct device_node *codec_of_node; 1045 1046 /* codec/machine specific init - e.g. add machine controls */ 1047 int (*init)(struct snd_soc_component *component); 1048 }; 1049 1050 /* SoC card */ 1051 struct snd_soc_card { 1052 const char *name; 1053 const char *long_name; 1054 const char *driver_name; 1055 struct device *dev; 1056 struct snd_card *snd_card; 1057 struct module *owner; 1058 1059 struct mutex mutex; 1060 struct mutex dapm_mutex; 1061 1062 bool instantiated; 1063 1064 int (*probe)(struct snd_soc_card *card); 1065 int (*late_probe)(struct snd_soc_card *card); 1066 int (*remove)(struct snd_soc_card *card); 1067 1068 /* the pre and post PM functions are used to do any PM work before and 1069 * after the codec and DAI's do any PM work. */ 1070 int (*suspend_pre)(struct snd_soc_card *card); 1071 int (*suspend_post)(struct snd_soc_card *card); 1072 int (*resume_pre)(struct snd_soc_card *card); 1073 int (*resume_post)(struct snd_soc_card *card); 1074 1075 /* callbacks */ 1076 int (*set_bias_level)(struct snd_soc_card *, 1077 struct snd_soc_dapm_context *dapm, 1078 enum snd_soc_bias_level level); 1079 int (*set_bias_level_post)(struct snd_soc_card *, 1080 struct snd_soc_dapm_context *dapm, 1081 enum snd_soc_bias_level level); 1082 1083 long pmdown_time; 1084 1085 /* CPU <--> Codec DAI links */ 1086 struct snd_soc_dai_link *dai_link; 1087 int num_links; 1088 struct snd_soc_pcm_runtime *rtd; 1089 int num_rtd; 1090 1091 /* optional codec specific configuration */ 1092 struct snd_soc_codec_conf *codec_conf; 1093 int num_configs; 1094 1095 /* 1096 * optional auxiliary devices such as amplifiers or codecs with DAI 1097 * link unused 1098 */ 1099 struct snd_soc_aux_dev *aux_dev; 1100 int num_aux_devs; 1101 struct snd_soc_pcm_runtime *rtd_aux; 1102 int num_aux_rtd; 1103 1104 const struct snd_kcontrol_new *controls; 1105 int num_controls; 1106 1107 /* 1108 * Card-specific routes and widgets. 1109 * Note: of_dapm_xxx for Device Tree; Otherwise for driver build-in. 1110 */ 1111 const struct snd_soc_dapm_widget *dapm_widgets; 1112 int num_dapm_widgets; 1113 const struct snd_soc_dapm_route *dapm_routes; 1114 int num_dapm_routes; 1115 const struct snd_soc_dapm_widget *of_dapm_widgets; 1116 int num_of_dapm_widgets; 1117 const struct snd_soc_dapm_route *of_dapm_routes; 1118 int num_of_dapm_routes; 1119 bool fully_routed; 1120 1121 struct work_struct deferred_resume_work; 1122 1123 /* lists of probed devices belonging to this card */ 1124 struct list_head codec_dev_list; 1125 1126 struct list_head widgets; 1127 struct list_head paths; 1128 struct list_head dapm_list; 1129 struct list_head dapm_dirty; 1130 1131 /* attached dynamic objects */ 1132 struct list_head dobj_list; 1133 1134 /* Generic DAPM context for the card */ 1135 struct snd_soc_dapm_context dapm; 1136 struct snd_soc_dapm_stats dapm_stats; 1137 struct snd_soc_dapm_update *update; 1138 1139 #ifdef CONFIG_DEBUG_FS 1140 struct dentry *debugfs_card_root; 1141 struct dentry *debugfs_pop_time; 1142 #endif 1143 u32 pop_time; 1144 1145 void *drvdata; 1146 }; 1147 1148 /* SoC machine DAI configuration, glues a codec and cpu DAI together */ 1149 struct snd_soc_pcm_runtime { 1150 struct device *dev; 1151 struct snd_soc_card *card; 1152 struct snd_soc_dai_link *dai_link; 1153 struct mutex pcm_mutex; 1154 enum snd_soc_pcm_subclass pcm_subclass; 1155 struct snd_pcm_ops ops; 1156 1157 unsigned int dev_registered:1; 1158 1159 /* Dynamic PCM BE runtime data */ 1160 struct snd_soc_dpcm_runtime dpcm[2]; 1161 int fe_compr; 1162 1163 long pmdown_time; 1164 unsigned char pop_wait:1; 1165 1166 /* runtime devices */ 1167 struct snd_pcm *pcm; 1168 struct snd_compr *compr; 1169 struct snd_soc_codec *codec; 1170 struct snd_soc_platform *platform; 1171 struct snd_soc_dai *codec_dai; 1172 struct snd_soc_dai *cpu_dai; 1173 struct snd_soc_component *component; /* Only valid for AUX dev rtds */ 1174 1175 struct snd_soc_dai **codec_dais; 1176 unsigned int num_codecs; 1177 1178 struct delayed_work delayed_work; 1179 #ifdef CONFIG_DEBUG_FS 1180 struct dentry *debugfs_dpcm_root; 1181 struct dentry *debugfs_dpcm_state; 1182 #endif 1183 }; 1184 1185 /* mixer control */ 1186 struct soc_mixer_control { 1187 int min, max, platform_max; 1188 int reg, rreg; 1189 unsigned int shift, rshift; 1190 unsigned int sign_bit; 1191 unsigned int invert:1; 1192 unsigned int autodisable:1; 1193 struct snd_soc_dobj dobj; 1194 }; 1195 1196 struct soc_bytes { 1197 int base; 1198 int num_regs; 1199 u32 mask; 1200 }; 1201 1202 struct soc_bytes_ext { 1203 int max; 1204 struct snd_soc_dobj dobj; 1205 1206 /* used for TLV byte control */ 1207 int (*get)(unsigned int __user *bytes, unsigned int size); 1208 int (*put)(const unsigned int __user *bytes, unsigned int size); 1209 }; 1210 1211 /* multi register control */ 1212 struct soc_mreg_control { 1213 long min, max; 1214 unsigned int regbase, regcount, nbits, invert; 1215 }; 1216 1217 /* enumerated kcontrol */ 1218 struct soc_enum { 1219 int reg; 1220 unsigned char shift_l; 1221 unsigned char shift_r; 1222 unsigned int items; 1223 unsigned int mask; 1224 const char * const *texts; 1225 const unsigned int *values; 1226 unsigned int autodisable:1; 1227 struct snd_soc_dobj dobj; 1228 }; 1229 1230 /** 1231 * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in 1232 * @component: The component to cast to a CODEC 1233 * 1234 * This function must only be used on components that are known to be CODECs. 1235 * Otherwise the behavior is undefined. 1236 */ 1237 static inline struct snd_soc_codec *snd_soc_component_to_codec( 1238 struct snd_soc_component *component) 1239 { 1240 return container_of(component, struct snd_soc_codec, component); 1241 } 1242 1243 /** 1244 * snd_soc_component_to_platform() - Casts a component to the platform it is embedded in 1245 * @component: The component to cast to a platform 1246 * 1247 * This function must only be used on components that are known to be platforms. 1248 * Otherwise the behavior is undefined. 1249 */ 1250 static inline struct snd_soc_platform *snd_soc_component_to_platform( 1251 struct snd_soc_component *component) 1252 { 1253 return container_of(component, struct snd_soc_platform, component); 1254 } 1255 1256 /** 1257 * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is 1258 * embedded in 1259 * @dapm: The DAPM context to cast to the component 1260 * 1261 * This function must only be used on DAPM contexts that are known to be part of 1262 * a component (e.g. in a component driver). Otherwise the behavior is 1263 * undefined. 1264 */ 1265 static inline struct snd_soc_component *snd_soc_dapm_to_component( 1266 struct snd_soc_dapm_context *dapm) 1267 { 1268 return container_of(dapm, struct snd_soc_component, dapm); 1269 } 1270 1271 /** 1272 * snd_soc_dapm_to_codec() - Casts a DAPM context to the CODEC it is embedded in 1273 * @dapm: The DAPM context to cast to the CODEC 1274 * 1275 * This function must only be used on DAPM contexts that are known to be part of 1276 * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. 1277 */ 1278 static inline struct snd_soc_codec *snd_soc_dapm_to_codec( 1279 struct snd_soc_dapm_context *dapm) 1280 { 1281 return snd_soc_component_to_codec(snd_soc_dapm_to_component(dapm)); 1282 } 1283 1284 /** 1285 * snd_soc_dapm_to_platform() - Casts a DAPM context to the platform it is 1286 * embedded in 1287 * @dapm: The DAPM context to cast to the platform. 1288 * 1289 * This function must only be used on DAPM contexts that are known to be part of 1290 * a platform (e.g. in a platform driver). Otherwise the behavior is undefined. 1291 */ 1292 static inline struct snd_soc_platform *snd_soc_dapm_to_platform( 1293 struct snd_soc_dapm_context *dapm) 1294 { 1295 return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm)); 1296 } 1297 1298 /** 1299 * snd_soc_component_get_dapm() - Returns the DAPM context associated with a 1300 * component 1301 * @component: The component for which to get the DAPM context 1302 */ 1303 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm( 1304 struct snd_soc_component *component) 1305 { 1306 return &component->dapm; 1307 } 1308 1309 /** 1310 * snd_soc_codec_get_dapm() - Returns the DAPM context for the CODEC 1311 * @codec: The CODEC for which to get the DAPM context 1312 * 1313 * Note: Use this function instead of directly accessing the CODEC's dapm field 1314 */ 1315 static inline struct snd_soc_dapm_context *snd_soc_codec_get_dapm( 1316 struct snd_soc_codec *codec) 1317 { 1318 return snd_soc_component_get_dapm(&codec->component); 1319 } 1320 1321 /** 1322 * snd_soc_dapm_init_bias_level() - Initialize CODEC DAPM bias level 1323 * @codec: The CODEC for which to initialize the DAPM bias level 1324 * @level: The DAPM level to initialize to 1325 * 1326 * Initializes the CODEC DAPM bias level. See snd_soc_dapm_init_bias_level(). 1327 */ 1328 static inline void snd_soc_codec_init_bias_level(struct snd_soc_codec *codec, 1329 enum snd_soc_bias_level level) 1330 { 1331 snd_soc_dapm_init_bias_level(snd_soc_codec_get_dapm(codec), level); 1332 } 1333 1334 /** 1335 * snd_soc_dapm_get_bias_level() - Get current CODEC DAPM bias level 1336 * @codec: The CODEC for which to get the DAPM bias level 1337 * 1338 * Returns: The current DAPM bias level of the CODEC. 1339 */ 1340 static inline enum snd_soc_bias_level snd_soc_codec_get_bias_level( 1341 struct snd_soc_codec *codec) 1342 { 1343 return snd_soc_dapm_get_bias_level(snd_soc_codec_get_dapm(codec)); 1344 } 1345 1346 /** 1347 * snd_soc_codec_force_bias_level() - Set the CODEC DAPM bias level 1348 * @codec: The CODEC for which to set the level 1349 * @level: The level to set to 1350 * 1351 * Forces the CODEC bias level to a specific state. See 1352 * snd_soc_dapm_force_bias_level(). 1353 */ 1354 static inline int snd_soc_codec_force_bias_level(struct snd_soc_codec *codec, 1355 enum snd_soc_bias_level level) 1356 { 1357 return snd_soc_dapm_force_bias_level(snd_soc_codec_get_dapm(codec), 1358 level); 1359 } 1360 1361 /** 1362 * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol 1363 * @kcontrol: The kcontrol 1364 * 1365 * This function must only be used on DAPM contexts that are known to be part of 1366 * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. 1367 */ 1368 static inline struct snd_soc_codec *snd_soc_dapm_kcontrol_codec( 1369 struct snd_kcontrol *kcontrol) 1370 { 1371 return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); 1372 } 1373 1374 /* codec IO */ 1375 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); 1376 int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, 1377 unsigned int val); 1378 1379 /** 1380 * snd_soc_cache_sync() - Sync the register cache with the hardware 1381 * @codec: CODEC to sync 1382 * 1383 * Note: This function will call regcache_sync() 1384 */ 1385 static inline int snd_soc_cache_sync(struct snd_soc_codec *codec) 1386 { 1387 return regcache_sync(codec->component.regmap); 1388 } 1389 1390 /* component IO */ 1391 int snd_soc_component_read(struct snd_soc_component *component, 1392 unsigned int reg, unsigned int *val); 1393 int snd_soc_component_write(struct snd_soc_component *component, 1394 unsigned int reg, unsigned int val); 1395 int snd_soc_component_update_bits(struct snd_soc_component *component, 1396 unsigned int reg, unsigned int mask, unsigned int val); 1397 int snd_soc_component_update_bits_async(struct snd_soc_component *component, 1398 unsigned int reg, unsigned int mask, unsigned int val); 1399 void snd_soc_component_async_complete(struct snd_soc_component *component); 1400 int snd_soc_component_test_bits(struct snd_soc_component *component, 1401 unsigned int reg, unsigned int mask, unsigned int value); 1402 1403 #ifdef CONFIG_REGMAP 1404 1405 void snd_soc_component_init_regmap(struct snd_soc_component *component, 1406 struct regmap *regmap); 1407 void snd_soc_component_exit_regmap(struct snd_soc_component *component); 1408 1409 /** 1410 * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC 1411 * @codec: The CODEC for which to initialize the regmap instance 1412 * @regmap: The regmap instance that should be used by the CODEC 1413 * 1414 * This function allows deferred assignment of the regmap instance that is 1415 * associated with the CODEC. Only use this if the regmap instance is not yet 1416 * ready when the CODEC is registered. The function must also be called before 1417 * the first IO attempt of the CODEC. 1418 */ 1419 static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec, 1420 struct regmap *regmap) 1421 { 1422 snd_soc_component_init_regmap(&codec->component, regmap); 1423 } 1424 1425 /** 1426 * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC 1427 * @codec: The CODEC for which to de-initialize the regmap instance 1428 * 1429 * Calls regmap_exit() on the regmap instance associated to the CODEC and 1430 * removes the regmap instance from the CODEC. 1431 * 1432 * This function should only be used if snd_soc_codec_init_regmap() was used to 1433 * initialize the regmap instance. 1434 */ 1435 static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec) 1436 { 1437 snd_soc_component_exit_regmap(&codec->component); 1438 } 1439 1440 #endif 1441 1442 /* device driver data */ 1443 1444 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, 1445 void *data) 1446 { 1447 card->drvdata = data; 1448 } 1449 1450 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card) 1451 { 1452 return card->drvdata; 1453 } 1454 1455 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c, 1456 void *data) 1457 { 1458 dev_set_drvdata(c->dev, data); 1459 } 1460 1461 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c) 1462 { 1463 return dev_get_drvdata(c->dev); 1464 } 1465 1466 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec, 1467 void *data) 1468 { 1469 snd_soc_component_set_drvdata(&codec->component, data); 1470 } 1471 1472 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec) 1473 { 1474 return snd_soc_component_get_drvdata(&codec->component); 1475 } 1476 1477 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform, 1478 void *data) 1479 { 1480 snd_soc_component_set_drvdata(&platform->component, data); 1481 } 1482 1483 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform) 1484 { 1485 return snd_soc_component_get_drvdata(&platform->component); 1486 } 1487 1488 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd, 1489 void *data) 1490 { 1491 dev_set_drvdata(rtd->dev, data); 1492 } 1493 1494 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd) 1495 { 1496 return dev_get_drvdata(rtd->dev); 1497 } 1498 1499 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card) 1500 { 1501 INIT_LIST_HEAD(&card->codec_dev_list); 1502 INIT_LIST_HEAD(&card->widgets); 1503 INIT_LIST_HEAD(&card->paths); 1504 INIT_LIST_HEAD(&card->dapm_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 static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec) 1550 { 1551 return snd_soc_component_is_active(&codec->component); 1552 } 1553 1554 /** 1555 * snd_soc_kcontrol_component() - Returns the component that registered the 1556 * control 1557 * @kcontrol: The control for which to get the component 1558 * 1559 * Note: This function will work correctly if the control has been registered 1560 * for a component. Either with snd_soc_add_codec_controls() or 1561 * snd_soc_add_platform_controls() or via table based setup for either a 1562 * CODEC, a platform or component driver. Otherwise the behavior is undefined. 1563 */ 1564 static inline struct snd_soc_component *snd_soc_kcontrol_component( 1565 struct snd_kcontrol *kcontrol) 1566 { 1567 return snd_kcontrol_chip(kcontrol); 1568 } 1569 1570 /** 1571 * snd_soc_kcontrol_codec() - Returns the CODEC that registered the control 1572 * @kcontrol: The control for which to get the CODEC 1573 * 1574 * Note: This function will only work correctly if the control has been 1575 * registered with snd_soc_add_codec_controls() or via table based setup of 1576 * snd_soc_codec_driver. Otherwise the behavior is undefined. 1577 */ 1578 static inline struct snd_soc_codec *snd_soc_kcontrol_codec( 1579 struct snd_kcontrol *kcontrol) 1580 { 1581 return snd_soc_component_to_codec(snd_soc_kcontrol_component(kcontrol)); 1582 } 1583 1584 /** 1585 * snd_soc_kcontrol_platform() - Returns the platform that registered the control 1586 * @kcontrol: The control for which to get the platform 1587 * 1588 * Note: This function will only work correctly if the control has been 1589 * registered with snd_soc_add_platform_controls() or via table based setup of 1590 * a snd_soc_platform_driver. Otherwise the behavior is undefined. 1591 */ 1592 static inline struct snd_soc_platform *snd_soc_kcontrol_platform( 1593 struct snd_kcontrol *kcontrol) 1594 { 1595 return snd_soc_component_to_platform(snd_soc_kcontrol_component(kcontrol)); 1596 } 1597 1598 int snd_soc_util_init(void); 1599 void snd_soc_util_exit(void); 1600 1601 int snd_soc_of_parse_card_name(struct snd_soc_card *card, 1602 const char *propname); 1603 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, 1604 const char *propname); 1605 int snd_soc_of_parse_tdm_slot(struct device_node *np, 1606 unsigned int *slots, 1607 unsigned int *slot_width); 1608 void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, 1609 struct snd_soc_codec_conf *codec_conf, 1610 struct device_node *of_node, 1611 const char *propname); 1612 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, 1613 const char *propname); 1614 unsigned int snd_soc_of_parse_daifmt(struct device_node *np, 1615 const char *prefix, 1616 struct device_node **bitclkmaster, 1617 struct device_node **framemaster); 1618 int snd_soc_of_get_dai_name(struct device_node *of_node, 1619 const char **dai_name); 1620 int snd_soc_of_get_dai_link_codecs(struct device *dev, 1621 struct device_node *of_node, 1622 struct snd_soc_dai_link *dai_link); 1623 1624 #include <sound/soc-dai.h> 1625 1626 #ifdef CONFIG_DEBUG_FS 1627 extern struct dentry *snd_soc_debugfs_root; 1628 #endif 1629 1630 extern const struct dev_pm_ops snd_soc_pm_ops; 1631 1632 /* Helper functions */ 1633 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm) 1634 { 1635 mutex_lock(&dapm->card->dapm_mutex); 1636 } 1637 1638 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm) 1639 { 1640 mutex_unlock(&dapm->card->dapm_mutex); 1641 } 1642 1643 #endif 1644