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 31 /* 32 * Convenience kcontrol builders 33 */ 34 #define SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, xmax, xinvert, xautodisable) \ 35 ((unsigned long)&(struct soc_mixer_control) \ 36 {.reg = xreg, .rreg = xreg, .shift = shift_left, \ 37 .rshift = shift_right, .max = xmax, .platform_max = xmax, \ 38 .invert = xinvert, .autodisable = xautodisable}) 39 #define SOC_DOUBLE_S_VALUE(xreg, shift_left, shift_right, xmin, xmax, xsign_bit, xinvert, xautodisable) \ 40 ((unsigned long)&(struct soc_mixer_control) \ 41 {.reg = xreg, .rreg = xreg, .shift = shift_left, \ 42 .rshift = shift_right, .min = xmin, .max = xmax, .platform_max = xmax, \ 43 .sign_bit = xsign_bit, .invert = xinvert, .autodisable = xautodisable}) 44 #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, xautodisable) \ 45 SOC_DOUBLE_VALUE(xreg, xshift, xshift, xmax, xinvert, xautodisable) 46 #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \ 47 ((unsigned long)&(struct soc_mixer_control) \ 48 {.reg = xreg, .max = xmax, .platform_max = xmax, .invert = xinvert}) 49 #define SOC_DOUBLE_R_VALUE(xlreg, xrreg, xshift, xmax, xinvert) \ 50 ((unsigned long)&(struct soc_mixer_control) \ 51 {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \ 52 .max = xmax, .platform_max = xmax, .invert = xinvert}) 53 #define SOC_DOUBLE_R_S_VALUE(xlreg, xrreg, xshift, xmin, xmax, xsign_bit, xinvert) \ 54 ((unsigned long)&(struct soc_mixer_control) \ 55 {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \ 56 .max = xmax, .min = xmin, .platform_max = xmax, .sign_bit = xsign_bit, \ 57 .invert = xinvert}) 58 #define SOC_DOUBLE_R_RANGE_VALUE(xlreg, xrreg, xshift, xmin, xmax, xinvert) \ 59 ((unsigned long)&(struct soc_mixer_control) \ 60 {.reg = xlreg, .rreg = xrreg, .shift = xshift, .rshift = xshift, \ 61 .min = xmin, .max = xmax, .platform_max = xmax, .invert = xinvert}) 62 #define SOC_SINGLE(xname, reg, shift, max, invert) \ 63 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 64 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 65 .put = snd_soc_put_volsw, \ 66 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) } 67 #define SOC_SINGLE_RANGE(xname, xreg, xshift, xmin, xmax, xinvert) \ 68 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 69 .info = snd_soc_info_volsw_range, .get = snd_soc_get_volsw_range, \ 70 .put = snd_soc_put_volsw_range, \ 71 .private_value = (unsigned long)&(struct soc_mixer_control) \ 72 {.reg = xreg, .rreg = xreg, .shift = xshift, \ 73 .rshift = xshift, .min = xmin, .max = xmax, \ 74 .platform_max = xmax, .invert = xinvert} } 75 #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ 76 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 77 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 78 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 79 .tlv.p = (tlv_array), \ 80 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 81 .put = snd_soc_put_volsw, \ 82 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) } 83 #define SOC_SINGLE_SX_TLV(xname, xreg, xshift, xmin, xmax, tlv_array) \ 84 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 85 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 86 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 87 .tlv.p = (tlv_array),\ 88 .info = snd_soc_info_volsw_sx, \ 89 .get = snd_soc_get_volsw_sx,\ 90 .put = snd_soc_put_volsw_sx, \ 91 .private_value = (unsigned long)&(struct soc_mixer_control) \ 92 {.reg = xreg, .rreg = xreg, \ 93 .shift = xshift, .rshift = xshift, \ 94 .max = xmax, .min = xmin} } 95 #define SOC_SINGLE_RANGE_TLV(xname, xreg, xshift, xmin, xmax, xinvert, tlv_array) \ 96 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 97 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 98 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 99 .tlv.p = (tlv_array), \ 100 .info = snd_soc_info_volsw_range, \ 101 .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ 102 .private_value = (unsigned long)&(struct soc_mixer_control) \ 103 {.reg = xreg, .rreg = xreg, .shift = xshift, \ 104 .rshift = xshift, .min = xmin, .max = xmax, \ 105 .platform_max = xmax, .invert = xinvert} } 106 #define SOC_DOUBLE(xname, reg, shift_left, shift_right, max, invert) \ 107 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 108 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 109 .put = snd_soc_put_volsw, \ 110 .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \ 111 max, invert, 0) } 112 #define SOC_DOUBLE_STS(xname, reg, shift_left, shift_right, max, invert) \ 113 { \ 114 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 115 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 116 .access = SNDRV_CTL_ELEM_ACCESS_READ | \ 117 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \ 118 .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \ 119 max, invert, 0) } 120 #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \ 121 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 122 .info = snd_soc_info_volsw, \ 123 .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \ 124 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 125 xmax, xinvert) } 126 #define SOC_DOUBLE_R_RANGE(xname, reg_left, reg_right, xshift, xmin, \ 127 xmax, xinvert) \ 128 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 129 .info = snd_soc_info_volsw_range, \ 130 .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ 131 .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \ 132 xshift, xmin, xmax, xinvert) } 133 #define SOC_DOUBLE_TLV(xname, reg, shift_left, shift_right, max, invert, tlv_array) \ 134 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 135 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 136 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 137 .tlv.p = (tlv_array), \ 138 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ 139 .put = snd_soc_put_volsw, \ 140 .private_value = SOC_DOUBLE_VALUE(reg, shift_left, shift_right, \ 141 max, invert, 0) } 142 #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \ 143 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 144 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 145 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 146 .tlv.p = (tlv_array), \ 147 .info = snd_soc_info_volsw, \ 148 .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \ 149 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 150 xmax, xinvert) } 151 #define SOC_DOUBLE_R_RANGE_TLV(xname, reg_left, reg_right, xshift, xmin, \ 152 xmax, xinvert, tlv_array) \ 153 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 154 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 155 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 156 .tlv.p = (tlv_array), \ 157 .info = snd_soc_info_volsw_range, \ 158 .get = snd_soc_get_volsw_range, .put = snd_soc_put_volsw_range, \ 159 .private_value = SOC_DOUBLE_R_RANGE_VALUE(reg_left, reg_right, \ 160 xshift, xmin, xmax, xinvert) } 161 #define SOC_DOUBLE_R_SX_TLV(xname, xreg, xrreg, xshift, xmin, xmax, tlv_array) \ 162 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 163 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 164 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 165 .tlv.p = (tlv_array), \ 166 .info = snd_soc_info_volsw_sx, \ 167 .get = snd_soc_get_volsw_sx, \ 168 .put = snd_soc_put_volsw_sx, \ 169 .private_value = (unsigned long)&(struct soc_mixer_control) \ 170 {.reg = xreg, .rreg = xrreg, \ 171 .shift = xshift, .rshift = xshift, \ 172 .max = xmax, .min = xmin} } 173 #define SOC_DOUBLE_R_S_TLV(xname, reg_left, reg_right, xshift, xmin, xmax, xsign_bit, xinvert, tlv_array) \ 174 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 175 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 176 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 177 .tlv.p = (tlv_array), \ 178 .info = snd_soc_info_volsw, \ 179 .get = snd_soc_get_volsw, .put = snd_soc_put_volsw, \ 180 .private_value = SOC_DOUBLE_R_S_VALUE(reg_left, reg_right, xshift, \ 181 xmin, xmax, xsign_bit, xinvert) } 182 #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \ 183 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 184 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 185 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 186 .tlv.p = (tlv_array), \ 187 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ 188 .put = snd_soc_put_volsw, \ 189 .private_value = SOC_DOUBLE_S_VALUE(xreg, 0, 8, xmin, xmax, 7, 0, 0) } 190 #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xitems, xtexts) \ 191 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ 192 .items = xitems, .texts = xtexts, \ 193 .mask = xitems ? roundup_pow_of_two(xitems) - 1 : 0} 194 #define SOC_ENUM_SINGLE(xreg, xshift, xitems, xtexts) \ 195 SOC_ENUM_DOUBLE(xreg, xshift, xshift, xitems, xtexts) 196 #define SOC_ENUM_SINGLE_EXT(xitems, xtexts) \ 197 { .items = xitems, .texts = xtexts } 198 #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xitems, xtexts, xvalues) \ 199 { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ 200 .mask = xmask, .items = xitems, .texts = xtexts, .values = xvalues} 201 #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \ 202 SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xitems, xtexts, xvalues) 203 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, xshift, xmask, xitems, xtexts, xvalues) \ 204 { .reg = xreg, .shift_l = xshift, .shift_r = xshift, \ 205 .mask = xmask, .items = xitems, .texts = xtexts, \ 206 .values = xvalues, .autodisable = 1} 207 #define SOC_ENUM_SINGLE_VIRT(xitems, xtexts) \ 208 SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, xitems, xtexts) 209 #define SOC_ENUM(xname, xenum) \ 210 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ 211 .info = snd_soc_info_enum_double, \ 212 .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \ 213 .private_value = (unsigned long)&xenum } 214 #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\ 215 xhandler_get, xhandler_put) \ 216 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 217 .info = snd_soc_info_volsw, \ 218 .get = xhandler_get, .put = xhandler_put, \ 219 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) } 220 #define SOC_DOUBLE_EXT(xname, reg, shift_left, shift_right, max, invert,\ 221 xhandler_get, xhandler_put) \ 222 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 223 .info = snd_soc_info_volsw, \ 224 .get = xhandler_get, .put = xhandler_put, \ 225 .private_value = \ 226 SOC_DOUBLE_VALUE(reg, shift_left, shift_right, max, invert, 0) } 227 #define SOC_DOUBLE_R_EXT(xname, reg_left, reg_right, xshift, xmax, xinvert,\ 228 xhandler_get, xhandler_put) \ 229 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 230 .info = snd_soc_info_volsw, \ 231 .get = xhandler_get, .put = xhandler_put, \ 232 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 233 xmax, xinvert) } 234 #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\ 235 xhandler_get, xhandler_put, tlv_array) \ 236 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 237 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 238 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 239 .tlv.p = (tlv_array), \ 240 .info = snd_soc_info_volsw, \ 241 .get = xhandler_get, .put = xhandler_put, \ 242 .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert, 0) } 243 #define SOC_SINGLE_RANGE_EXT_TLV(xname, xreg, xshift, xmin, xmax, xinvert, \ 244 xhandler_get, xhandler_put, tlv_array) \ 245 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ 246 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ 247 SNDRV_CTL_ELEM_ACCESS_READWRITE,\ 248 .tlv.p = (tlv_array), \ 249 .info = snd_soc_info_volsw_range, \ 250 .get = xhandler_get, .put = xhandler_put, \ 251 .private_value = (unsigned long)&(struct soc_mixer_control) \ 252 {.reg = xreg, .rreg = xreg, .shift = xshift, \ 253 .rshift = xshift, .min = xmin, .max = xmax, \ 254 .platform_max = xmax, .invert = xinvert} } 255 #define SOC_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert,\ 256 xhandler_get, xhandler_put, tlv_array) \ 257 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 258 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 259 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 260 .tlv.p = (tlv_array), \ 261 .info = snd_soc_info_volsw, \ 262 .get = xhandler_get, .put = xhandler_put, \ 263 .private_value = SOC_DOUBLE_VALUE(xreg, shift_left, shift_right, \ 264 xmax, xinvert, 0) } 265 #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert,\ 266 xhandler_get, xhandler_put, tlv_array) \ 267 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 268 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ 269 SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 270 .tlv.p = (tlv_array), \ 271 .info = snd_soc_info_volsw, \ 272 .get = xhandler_get, .put = xhandler_put, \ 273 .private_value = SOC_DOUBLE_R_VALUE(reg_left, reg_right, xshift, \ 274 xmax, xinvert) } 275 #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \ 276 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 277 .info = snd_soc_info_bool_ext, \ 278 .get = xhandler_get, .put = xhandler_put, \ 279 .private_value = xdata } 280 #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ 281 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 282 .info = snd_soc_info_enum_double, \ 283 .get = xhandler_get, .put = xhandler_put, \ 284 .private_value = (unsigned long)&xenum } 285 #define SOC_VALUE_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ 286 SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) 287 288 #define SND_SOC_BYTES(xname, xbase, xregs) \ 289 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 290 .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \ 291 .put = snd_soc_bytes_put, .private_value = \ 292 ((unsigned long)&(struct soc_bytes) \ 293 {.base = xbase, .num_regs = xregs }) } 294 295 #define SND_SOC_BYTES_MASK(xname, xbase, xregs, xmask) \ 296 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 297 .info = snd_soc_bytes_info, .get = snd_soc_bytes_get, \ 298 .put = snd_soc_bytes_put, .private_value = \ 299 ((unsigned long)&(struct soc_bytes) \ 300 {.base = xbase, .num_regs = xregs, \ 301 .mask = xmask }) } 302 303 /* 304 * SND_SOC_BYTES_EXT is deprecated, please USE SND_SOC_BYTES_TLV instead 305 */ 306 #define SND_SOC_BYTES_EXT(xname, xcount, xhandler_get, xhandler_put) \ 307 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 308 .info = snd_soc_bytes_info_ext, \ 309 .get = xhandler_get, .put = xhandler_put, \ 310 .private_value = (unsigned long)&(struct soc_bytes_ext) \ 311 {.max = xcount} } 312 #define SND_SOC_BYTES_TLV(xname, xcount, xhandler_get, xhandler_put) \ 313 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 314 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE | \ 315 SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK, \ 316 .tlv.c = (snd_soc_bytes_tlv_callback), \ 317 .info = snd_soc_bytes_info_ext, \ 318 .private_value = (unsigned long)&(struct soc_bytes_ext) \ 319 {.max = xcount, .get = xhandler_get, .put = xhandler_put, } } 320 #define SOC_SINGLE_XR_SX(xname, xregbase, xregcount, xnbits, \ 321 xmin, xmax, xinvert) \ 322 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ 323 .info = snd_soc_info_xr_sx, .get = snd_soc_get_xr_sx, \ 324 .put = snd_soc_put_xr_sx, \ 325 .private_value = (unsigned long)&(struct soc_mreg_control) \ 326 {.regbase = xregbase, .regcount = xregcount, .nbits = xnbits, \ 327 .invert = xinvert, .min = xmin, .max = xmax} } 328 329 #define SOC_SINGLE_STROBE(xname, xreg, xshift, xinvert) \ 330 SOC_SINGLE_EXT(xname, xreg, xshift, 1, xinvert, \ 331 snd_soc_get_strobe, snd_soc_put_strobe) 332 333 /* 334 * Simplified versions of above macros, declaring a struct and calculating 335 * ARRAY_SIZE internally 336 */ 337 #define SOC_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xtexts) \ 338 const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \ 339 ARRAY_SIZE(xtexts), xtexts) 340 #define SOC_ENUM_SINGLE_DECL(name, xreg, xshift, xtexts) \ 341 SOC_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xtexts) 342 #define SOC_ENUM_SINGLE_EXT_DECL(name, xtexts) \ 343 const struct soc_enum name = SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(xtexts), xtexts) 344 #define SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift_l, xshift_r, xmask, xtexts, xvalues) \ 345 const struct soc_enum name = SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, \ 346 ARRAY_SIZE(xtexts), xtexts, xvalues) 347 #define SOC_VALUE_ENUM_SINGLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \ 348 SOC_VALUE_ENUM_DOUBLE_DECL(name, xreg, xshift, xshift, xmask, xtexts, xvalues) 349 350 #define SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL(name, xreg, xshift, xmask, xtexts, xvalues) \ 351 const struct soc_enum name = SOC_VALUE_ENUM_SINGLE_AUTODISABLE(xreg, \ 352 xshift, xmask, ARRAY_SIZE(xtexts), xtexts, xvalues) 353 354 #define SOC_ENUM_SINGLE_VIRT_DECL(name, xtexts) \ 355 const struct soc_enum name = SOC_ENUM_SINGLE_VIRT(ARRAY_SIZE(xtexts), xtexts) 356 357 /* 358 * Component probe and remove ordering levels for components with runtime 359 * dependencies. 360 */ 361 #define SND_SOC_COMP_ORDER_FIRST -2 362 #define SND_SOC_COMP_ORDER_EARLY -1 363 #define SND_SOC_COMP_ORDER_NORMAL 0 364 #define SND_SOC_COMP_ORDER_LATE 1 365 #define SND_SOC_COMP_ORDER_LAST 2 366 367 /* 368 * Bias levels 369 * 370 * @ON: Bias is fully on for audio playback and capture operations. 371 * @PREPARE: Prepare for audio operations. Called before DAPM switching for 372 * stream start and stop operations. 373 * @STANDBY: Low power standby state when no playback/capture operations are 374 * in progress. NOTE: The transition time between STANDBY and ON 375 * should be as fast as possible and no longer than 10ms. 376 * @OFF: Power Off. No restrictions on transition times. 377 */ 378 enum snd_soc_bias_level { 379 SND_SOC_BIAS_OFF = 0, 380 SND_SOC_BIAS_STANDBY = 1, 381 SND_SOC_BIAS_PREPARE = 2, 382 SND_SOC_BIAS_ON = 3, 383 }; 384 385 struct device_node; 386 struct snd_jack; 387 struct snd_soc_card; 388 struct snd_soc_pcm_stream; 389 struct snd_soc_ops; 390 struct snd_soc_pcm_runtime; 391 struct snd_soc_dai; 392 struct snd_soc_dai_driver; 393 struct snd_soc_platform; 394 struct snd_soc_dai_link; 395 struct snd_soc_platform_driver; 396 struct snd_soc_codec; 397 struct snd_soc_codec_driver; 398 struct snd_soc_component; 399 struct snd_soc_component_driver; 400 struct soc_enum; 401 struct snd_soc_jack; 402 struct snd_soc_jack_zone; 403 struct snd_soc_jack_pin; 404 #include <sound/soc-dapm.h> 405 #include <sound/soc-dpcm.h> 406 #include <sound/soc-topology.h> 407 408 struct snd_soc_jack_gpio; 409 410 typedef int (*hw_write_t)(void *,const char* ,int); 411 412 enum snd_soc_pcm_subclass { 413 SND_SOC_PCM_CLASS_PCM = 0, 414 SND_SOC_PCM_CLASS_BE = 1, 415 }; 416 417 enum snd_soc_card_subclass { 418 SND_SOC_CARD_CLASS_INIT = 0, 419 SND_SOC_CARD_CLASS_RUNTIME = 1, 420 }; 421 422 int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, 423 int source, unsigned int freq, int dir); 424 int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, 425 unsigned int freq_in, unsigned int freq_out); 426 427 int snd_soc_register_card(struct snd_soc_card *card); 428 int snd_soc_unregister_card(struct snd_soc_card *card); 429 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card); 430 #ifdef CONFIG_PM_SLEEP 431 int snd_soc_suspend(struct device *dev); 432 int snd_soc_resume(struct device *dev); 433 #else 434 static inline int snd_soc_suspend(struct device *dev) 435 { 436 return 0; 437 } 438 439 static inline int snd_soc_resume(struct device *dev) 440 { 441 return 0; 442 } 443 #endif 444 int snd_soc_poweroff(struct device *dev); 445 int snd_soc_register_platform(struct device *dev, 446 const struct snd_soc_platform_driver *platform_drv); 447 int devm_snd_soc_register_platform(struct device *dev, 448 const struct snd_soc_platform_driver *platform_drv); 449 void snd_soc_unregister_platform(struct device *dev); 450 int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, 451 const struct snd_soc_platform_driver *platform_drv); 452 void snd_soc_remove_platform(struct snd_soc_platform *platform); 453 struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev); 454 int snd_soc_register_codec(struct device *dev, 455 const struct snd_soc_codec_driver *codec_drv, 456 struct snd_soc_dai_driver *dai_drv, int num_dai); 457 void snd_soc_unregister_codec(struct device *dev); 458 int snd_soc_register_component(struct device *dev, 459 const struct snd_soc_component_driver *cmpnt_drv, 460 struct snd_soc_dai_driver *dai_drv, int num_dai); 461 int devm_snd_soc_register_component(struct device *dev, 462 const struct snd_soc_component_driver *cmpnt_drv, 463 struct snd_soc_dai_driver *dai_drv, int num_dai); 464 void snd_soc_unregister_component(struct device *dev); 465 int snd_soc_cache_init(struct snd_soc_codec *codec); 466 int snd_soc_cache_exit(struct snd_soc_codec *codec); 467 468 int snd_soc_platform_read(struct snd_soc_platform *platform, 469 unsigned int reg); 470 int snd_soc_platform_write(struct snd_soc_platform *platform, 471 unsigned int reg, unsigned int val); 472 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); 473 #ifdef CONFIG_SND_SOC_COMPRESS 474 int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num); 475 #endif 476 477 struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, 478 const char *dai_link, int stream); 479 struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, 480 const char *dai_link); 481 482 bool snd_soc_runtime_ignore_pmdown_time(struct snd_soc_pcm_runtime *rtd); 483 void snd_soc_runtime_activate(struct snd_soc_pcm_runtime *rtd, int stream); 484 void snd_soc_runtime_deactivate(struct snd_soc_pcm_runtime *rtd, int stream); 485 486 int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, 487 unsigned int dai_fmt); 488 489 /* Utility functions to get clock rates from various things */ 490 int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); 491 int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); 492 int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots); 493 int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); 494 495 /* set runtime hw params */ 496 int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, 497 const struct snd_pcm_hardware *hw); 498 499 int snd_soc_platform_trigger(struct snd_pcm_substream *substream, 500 int cmd, struct snd_soc_platform *platform); 501 502 int soc_dai_hw_params(struct snd_pcm_substream *substream, 503 struct snd_pcm_hw_params *params, 504 struct snd_soc_dai *dai); 505 506 /* Jack reporting */ 507 int snd_soc_card_jack_new(struct snd_soc_card *card, const char *id, int type, 508 struct snd_soc_jack *jack, struct snd_soc_jack_pin *pins, 509 unsigned int num_pins); 510 511 void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); 512 int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, 513 struct snd_soc_jack_pin *pins); 514 void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, 515 struct notifier_block *nb); 516 void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, 517 struct notifier_block *nb); 518 int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count, 519 struct snd_soc_jack_zone *zones); 520 int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage); 521 #ifdef CONFIG_GPIOLIB 522 int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 523 struct snd_soc_jack_gpio *gpios); 524 int snd_soc_jack_add_gpiods(struct device *gpiod_dev, 525 struct snd_soc_jack *jack, 526 int count, struct snd_soc_jack_gpio *gpios); 527 void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, 528 struct snd_soc_jack_gpio *gpios); 529 #else 530 static inline int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, 531 struct snd_soc_jack_gpio *gpios) 532 { 533 return 0; 534 } 535 536 static inline int snd_soc_jack_add_gpiods(struct device *gpiod_dev, 537 struct snd_soc_jack *jack, 538 int count, 539 struct snd_soc_jack_gpio *gpios) 540 { 541 return 0; 542 } 543 544 static inline void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, 545 struct snd_soc_jack_gpio *gpios) 546 { 547 } 548 #endif 549 550 /* codec register bit access */ 551 int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned int reg, 552 unsigned int mask, unsigned int value); 553 int snd_soc_update_bits_locked(struct snd_soc_codec *codec, 554 unsigned int reg, unsigned int mask, 555 unsigned int value); 556 int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned int reg, 557 unsigned int mask, unsigned int value); 558 559 #ifdef CONFIG_SND_SOC_AC97_BUS 560 struct snd_ac97 *snd_soc_alloc_ac97_codec(struct snd_soc_codec *codec); 561 struct snd_ac97 *snd_soc_new_ac97_codec(struct snd_soc_codec *codec, 562 unsigned int id, unsigned int id_mask); 563 void snd_soc_free_ac97_codec(struct snd_ac97 *ac97); 564 565 int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops); 566 int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, 567 struct platform_device *pdev); 568 569 extern struct snd_ac97_bus_ops *soc_ac97_ops; 570 #else 571 static inline int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops, 572 struct platform_device *pdev) 573 { 574 return 0; 575 } 576 577 static inline int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops) 578 { 579 return 0; 580 } 581 #endif 582 583 /* 584 *Controls 585 */ 586 struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, 587 void *data, const char *long_name, 588 const char *prefix); 589 struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, 590 const char *name); 591 int snd_soc_add_component_controls(struct snd_soc_component *component, 592 const struct snd_kcontrol_new *controls, unsigned int num_controls); 593 int snd_soc_add_codec_controls(struct snd_soc_codec *codec, 594 const struct snd_kcontrol_new *controls, unsigned int num_controls); 595 int snd_soc_add_platform_controls(struct snd_soc_platform *platform, 596 const struct snd_kcontrol_new *controls, unsigned int num_controls); 597 int snd_soc_add_card_controls(struct snd_soc_card *soc_card, 598 const struct snd_kcontrol_new *controls, int num_controls); 599 int snd_soc_add_dai_controls(struct snd_soc_dai *dai, 600 const struct snd_kcontrol_new *controls, int num_controls); 601 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, 602 struct snd_ctl_elem_info *uinfo); 603 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, 604 struct snd_ctl_elem_value *ucontrol); 605 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, 606 struct snd_ctl_elem_value *ucontrol); 607 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, 608 struct snd_ctl_elem_info *uinfo); 609 int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol, 610 struct snd_ctl_elem_info *uinfo); 611 #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info 612 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, 613 struct snd_ctl_elem_value *ucontrol); 614 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, 615 struct snd_ctl_elem_value *ucontrol); 616 #define snd_soc_get_volsw_2r snd_soc_get_volsw 617 #define snd_soc_put_volsw_2r snd_soc_put_volsw 618 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, 619 struct snd_ctl_elem_value *ucontrol); 620 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, 621 struct snd_ctl_elem_value *ucontrol); 622 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, 623 struct snd_ctl_elem_info *uinfo); 624 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, 625 struct snd_ctl_elem_value *ucontrol); 626 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, 627 struct snd_ctl_elem_value *ucontrol); 628 int snd_soc_limit_volume(struct snd_soc_card *card, 629 const char *name, int max); 630 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, 631 struct snd_ctl_elem_info *uinfo); 632 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, 633 struct snd_ctl_elem_value *ucontrol); 634 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, 635 struct snd_ctl_elem_value *ucontrol); 636 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, 637 struct snd_ctl_elem_info *ucontrol); 638 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, 639 unsigned int size, unsigned int __user *tlv); 640 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, 641 struct snd_ctl_elem_info *uinfo); 642 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, 643 struct snd_ctl_elem_value *ucontrol); 644 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, 645 struct snd_ctl_elem_value *ucontrol); 646 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, 647 struct snd_ctl_elem_value *ucontrol); 648 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, 649 struct snd_ctl_elem_value *ucontrol); 650 651 /** 652 * struct snd_soc_jack_pin - Describes a pin to update based on jack detection 653 * 654 * @pin: name of the pin to update 655 * @mask: bits to check for in reported jack status 656 * @invert: if non-zero then pin is enabled when status is not reported 657 * @list: internal list entry 658 */ 659 struct snd_soc_jack_pin { 660 struct list_head list; 661 const char *pin; 662 int mask; 663 bool invert; 664 }; 665 666 /** 667 * struct snd_soc_jack_zone - Describes voltage zones of jack detection 668 * 669 * @min_mv: start voltage in mv 670 * @max_mv: end voltage in mv 671 * @jack_type: type of jack that is expected for this voltage 672 * @debounce_time: debounce_time for jack, codec driver should wait for this 673 * duration before reading the adc for voltages 674 * @list: internal list entry 675 */ 676 struct snd_soc_jack_zone { 677 unsigned int min_mv; 678 unsigned int max_mv; 679 unsigned int jack_type; 680 unsigned int debounce_time; 681 struct list_head list; 682 }; 683 684 /** 685 * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection 686 * 687 * @gpio: legacy gpio number 688 * @idx: gpio descriptor index within the function of the GPIO 689 * consumer device 690 * @gpiod_dev: GPIO consumer device 691 * @name: gpio name. Also as connection ID for the GPIO consumer 692 * device function name lookup 693 * @report: value to report when jack detected 694 * @invert: report presence in low state 695 * @debounce_time: debounce time in ms 696 * @wake: enable as wake source 697 * @jack_status_check: callback function which overrides the detection 698 * to provide more complex checks (eg, reading an 699 * ADC). 700 */ 701 struct snd_soc_jack_gpio { 702 unsigned int gpio; 703 unsigned int idx; 704 struct device *gpiod_dev; 705 const char *name; 706 int report; 707 int invert; 708 int debounce_time; 709 bool wake; 710 711 /* private: */ 712 struct snd_soc_jack *jack; 713 struct delayed_work work; 714 struct gpio_desc *desc; 715 716 void *data; 717 /* public: */ 718 int (*jack_status_check)(void *data); 719 }; 720 721 struct snd_soc_jack { 722 struct mutex mutex; 723 struct snd_jack *jack; 724 struct snd_soc_card *card; 725 struct list_head pins; 726 int status; 727 struct blocking_notifier_head notifier; 728 struct list_head jack_zones; 729 }; 730 731 /* SoC PCM stream information */ 732 struct snd_soc_pcm_stream { 733 const char *stream_name; 734 u64 formats; /* SNDRV_PCM_FMTBIT_* */ 735 unsigned int rates; /* SNDRV_PCM_RATE_* */ 736 unsigned int rate_min; /* min rate */ 737 unsigned int rate_max; /* max rate */ 738 unsigned int channels_min; /* min channels */ 739 unsigned int channels_max; /* max channels */ 740 unsigned int sig_bits; /* number of bits of content */ 741 }; 742 743 /* SoC audio ops */ 744 struct snd_soc_ops { 745 int (*startup)(struct snd_pcm_substream *); 746 void (*shutdown)(struct snd_pcm_substream *); 747 int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); 748 int (*hw_free)(struct snd_pcm_substream *); 749 int (*prepare)(struct snd_pcm_substream *); 750 int (*trigger)(struct snd_pcm_substream *, int); 751 }; 752 753 struct snd_soc_compr_ops { 754 int (*startup)(struct snd_compr_stream *); 755 void (*shutdown)(struct snd_compr_stream *); 756 int (*set_params)(struct snd_compr_stream *); 757 int (*trigger)(struct snd_compr_stream *); 758 }; 759 760 /* component interface */ 761 struct snd_soc_component_driver { 762 const char *name; 763 764 /* Default control and setup, added after probe() is run */ 765 const struct snd_kcontrol_new *controls; 766 unsigned int num_controls; 767 const struct snd_soc_dapm_widget *dapm_widgets; 768 unsigned int num_dapm_widgets; 769 const struct snd_soc_dapm_route *dapm_routes; 770 unsigned int num_dapm_routes; 771 772 int (*probe)(struct snd_soc_component *); 773 void (*remove)(struct snd_soc_component *); 774 775 /* DT */ 776 int (*of_xlate_dai_name)(struct snd_soc_component *component, 777 struct of_phandle_args *args, 778 const char **dai_name); 779 void (*seq_notifier)(struct snd_soc_component *, enum snd_soc_dapm_type, 780 int subseq); 781 int (*stream_event)(struct snd_soc_component *, int event); 782 783 /* probe ordering - for components with runtime dependencies */ 784 int probe_order; 785 int remove_order; 786 }; 787 788 struct snd_soc_component { 789 const char *name; 790 int id; 791 const char *name_prefix; 792 struct device *dev; 793 struct snd_soc_card *card; 794 795 unsigned int active; 796 797 unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */ 798 unsigned int registered_as_component:1; 799 800 struct list_head list; 801 struct list_head list_aux; /* for auxiliary component of the card */ 802 803 struct snd_soc_dai_driver *dai_drv; 804 int num_dai; 805 806 const struct snd_soc_component_driver *driver; 807 808 struct list_head dai_list; 809 810 int (*read)(struct snd_soc_component *, unsigned int, unsigned int *); 811 int (*write)(struct snd_soc_component *, unsigned int, unsigned int); 812 813 struct regmap *regmap; 814 int val_bytes; 815 816 struct mutex io_mutex; 817 818 /* attached dynamic objects */ 819 struct list_head dobj_list; 820 821 #ifdef CONFIG_DEBUG_FS 822 struct dentry *debugfs_root; 823 #endif 824 825 /* 826 * DO NOT use any of the fields below in drivers, they are temporary and 827 * are going to be removed again soon. If you use them in driver code the 828 * driver will be marked as BROKEN when these fields are removed. 829 */ 830 831 /* Don't use these, use snd_soc_component_get_dapm() */ 832 struct snd_soc_dapm_context dapm; 833 834 const struct snd_kcontrol_new *controls; 835 unsigned int num_controls; 836 const struct snd_soc_dapm_widget *dapm_widgets; 837 unsigned int num_dapm_widgets; 838 const struct snd_soc_dapm_route *dapm_routes; 839 unsigned int num_dapm_routes; 840 struct snd_soc_codec *codec; 841 842 int (*probe)(struct snd_soc_component *); 843 void (*remove)(struct snd_soc_component *); 844 845 /* machine specific init */ 846 int (*init)(struct snd_soc_component *component); 847 848 #ifdef CONFIG_DEBUG_FS 849 void (*init_debugfs)(struct snd_soc_component *component); 850 const char *debugfs_prefix; 851 #endif 852 }; 853 854 /* SoC Audio Codec device */ 855 struct snd_soc_codec { 856 struct device *dev; 857 const struct snd_soc_codec_driver *driver; 858 859 struct list_head list; 860 struct list_head card_list; 861 862 /* runtime */ 863 unsigned int cache_bypass:1; /* Suppress access to the cache */ 864 unsigned int suspended:1; /* Codec is in suspend PM state */ 865 unsigned int cache_init:1; /* codec cache has been initialized */ 866 867 /* codec IO */ 868 void *control_data; /* codec control (i2c/3wire) data */ 869 hw_write_t hw_write; 870 void *reg_cache; 871 872 /* component */ 873 struct snd_soc_component component; 874 875 #ifdef CONFIG_DEBUG_FS 876 struct dentry *debugfs_reg; 877 #endif 878 }; 879 880 /* codec driver */ 881 struct snd_soc_codec_driver { 882 883 /* driver ops */ 884 int (*probe)(struct snd_soc_codec *); 885 int (*remove)(struct snd_soc_codec *); 886 int (*suspend)(struct snd_soc_codec *); 887 int (*resume)(struct snd_soc_codec *); 888 struct snd_soc_component_driver component_driver; 889 890 /* Default control and setup, added after probe() is run */ 891 const struct snd_kcontrol_new *controls; 892 int num_controls; 893 const struct snd_soc_dapm_widget *dapm_widgets; 894 int num_dapm_widgets; 895 const struct snd_soc_dapm_route *dapm_routes; 896 int num_dapm_routes; 897 898 /* codec wide operations */ 899 int (*set_sysclk)(struct snd_soc_codec *codec, 900 int clk_id, int source, unsigned int freq, int dir); 901 int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source, 902 unsigned int freq_in, unsigned int freq_out); 903 904 /* codec IO */ 905 struct regmap *(*get_regmap)(struct device *); 906 unsigned int (*read)(struct snd_soc_codec *, unsigned int); 907 int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); 908 unsigned int reg_cache_size; 909 short reg_cache_step; 910 short reg_word_size; 911 const void *reg_cache_default; 912 913 /* codec bias level */ 914 int (*set_bias_level)(struct snd_soc_codec *, 915 enum snd_soc_bias_level level); 916 bool idle_bias_off; 917 bool suspend_bias_off; 918 919 void (*seq_notifier)(struct snd_soc_dapm_context *, 920 enum snd_soc_dapm_type, int); 921 922 bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */ 923 }; 924 925 /* SoC platform interface */ 926 struct snd_soc_platform_driver { 927 928 int (*probe)(struct snd_soc_platform *); 929 int (*remove)(struct snd_soc_platform *); 930 struct snd_soc_component_driver component_driver; 931 932 /* pcm creation and destruction */ 933 int (*pcm_new)(struct snd_soc_pcm_runtime *); 934 void (*pcm_free)(struct snd_pcm *); 935 936 /* 937 * For platform caused delay reporting. 938 * Optional. 939 */ 940 snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, 941 struct snd_soc_dai *); 942 943 /* platform stream pcm ops */ 944 const struct snd_pcm_ops *ops; 945 946 /* platform stream compress ops */ 947 const struct snd_compr_ops *compr_ops; 948 949 int (*bespoke_trigger)(struct snd_pcm_substream *, int); 950 }; 951 952 struct snd_soc_dai_link_component { 953 const char *name; 954 struct device_node *of_node; 955 const char *dai_name; 956 }; 957 958 struct snd_soc_platform { 959 struct device *dev; 960 const struct snd_soc_platform_driver *driver; 961 962 struct list_head list; 963 964 struct snd_soc_component component; 965 }; 966 967 struct snd_soc_dai_link { 968 /* config - must be set by machine driver */ 969 const char *name; /* Codec name */ 970 const char *stream_name; /* Stream name */ 971 /* 972 * You MAY specify the link's CPU-side device, either by device name, 973 * or by DT/OF node, but not both. If this information is omitted, 974 * the CPU-side DAI is matched using .cpu_dai_name only, which hence 975 * must be globally unique. These fields are currently typically used 976 * only for codec to codec links, or systems using device tree. 977 */ 978 const char *cpu_name; 979 struct device_node *cpu_of_node; 980 /* 981 * You MAY specify the DAI name of the CPU DAI. If this information is 982 * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node 983 * only, which only works well when that device exposes a single DAI. 984 */ 985 const char *cpu_dai_name; 986 /* 987 * You MUST specify the link's codec, either by device name, or by 988 * DT/OF node, but not both. 989 */ 990 const char *codec_name; 991 struct device_node *codec_of_node; 992 /* You MUST specify the DAI name within the codec */ 993 const char *codec_dai_name; 994 995 struct snd_soc_dai_link_component *codecs; 996 unsigned int num_codecs; 997 998 /* 999 * You MAY specify the link's platform/PCM/DMA driver, either by 1000 * device name, or by DT/OF node, but not both. Some forms of link 1001 * do not need a platform. 1002 */ 1003 const char *platform_name; 1004 struct device_node *platform_of_node; 1005 int id; /* optional ID for machine driver link identification */ 1006 1007 const struct snd_soc_pcm_stream *params; 1008 unsigned int num_params; 1009 1010 unsigned int dai_fmt; /* format to set on init */ 1011 1012 enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */ 1013 1014 /* codec/machine specific init - e.g. add machine controls */ 1015 int (*init)(struct snd_soc_pcm_runtime *rtd); 1016 1017 /* optional hw_params re-writing for BE and FE sync */ 1018 int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd, 1019 struct snd_pcm_hw_params *params); 1020 1021 /* machine stream operations */ 1022 const struct snd_soc_ops *ops; 1023 const struct snd_soc_compr_ops *compr_ops; 1024 1025 /* For unidirectional dai links */ 1026 bool playback_only; 1027 bool capture_only; 1028 1029 /* Mark this pcm with non atomic ops */ 1030 bool nonatomic; 1031 1032 /* Keep DAI active over suspend */ 1033 unsigned int ignore_suspend:1; 1034 1035 /* Symmetry requirements */ 1036 unsigned int symmetric_rates:1; 1037 unsigned int symmetric_channels:1; 1038 unsigned int symmetric_samplebits:1; 1039 1040 /* Do not create a PCM for this DAI link (Backend link) */ 1041 unsigned int no_pcm:1; 1042 1043 /* This DAI link can route to other DAI links at runtime (Frontend)*/ 1044 unsigned int dynamic:1; 1045 1046 /* DPCM capture and Playback support */ 1047 unsigned int dpcm_capture:1; 1048 unsigned int dpcm_playback:1; 1049 1050 /* DPCM used FE & BE merged format */ 1051 unsigned int dpcm_merged_format:1; 1052 1053 /* pmdown_time is ignored at stop */ 1054 unsigned int ignore_pmdown_time:1; 1055 1056 struct list_head list; /* DAI link list of the soc card */ 1057 struct snd_soc_dobj dobj; /* For topology */ 1058 }; 1059 1060 struct snd_soc_codec_conf { 1061 /* 1062 * specify device either by device name, or by 1063 * DT/OF node, but not both. 1064 */ 1065 const char *dev_name; 1066 struct device_node *of_node; 1067 1068 /* 1069 * optional map of kcontrol, widget and path name prefixes that are 1070 * associated per device 1071 */ 1072 const char *name_prefix; 1073 }; 1074 1075 struct snd_soc_aux_dev { 1076 const char *name; /* Codec name */ 1077 1078 /* 1079 * specify multi-codec either by device name, or by 1080 * DT/OF node, but not both. 1081 */ 1082 const char *codec_name; 1083 struct device_node *codec_of_node; 1084 1085 /* codec/machine specific init - e.g. add machine controls */ 1086 int (*init)(struct snd_soc_component *component); 1087 }; 1088 1089 /* SoC card */ 1090 struct snd_soc_card { 1091 const char *name; 1092 const char *long_name; 1093 const char *driver_name; 1094 struct device *dev; 1095 struct snd_card *snd_card; 1096 struct module *owner; 1097 1098 struct mutex mutex; 1099 struct mutex dapm_mutex; 1100 1101 bool instantiated; 1102 1103 int (*probe)(struct snd_soc_card *card); 1104 int (*late_probe)(struct snd_soc_card *card); 1105 int (*remove)(struct snd_soc_card *card); 1106 1107 /* the pre and post PM functions are used to do any PM work before and 1108 * after the codec and DAI's do any PM work. */ 1109 int (*suspend_pre)(struct snd_soc_card *card); 1110 int (*suspend_post)(struct snd_soc_card *card); 1111 int (*resume_pre)(struct snd_soc_card *card); 1112 int (*resume_post)(struct snd_soc_card *card); 1113 1114 /* callbacks */ 1115 int (*set_bias_level)(struct snd_soc_card *, 1116 struct snd_soc_dapm_context *dapm, 1117 enum snd_soc_bias_level level); 1118 int (*set_bias_level_post)(struct snd_soc_card *, 1119 struct snd_soc_dapm_context *dapm, 1120 enum snd_soc_bias_level level); 1121 1122 int (*add_dai_link)(struct snd_soc_card *, 1123 struct snd_soc_dai_link *link); 1124 void (*remove_dai_link)(struct snd_soc_card *, 1125 struct snd_soc_dai_link *link); 1126 1127 long pmdown_time; 1128 1129 /* CPU <--> Codec DAI links */ 1130 struct snd_soc_dai_link *dai_link; /* predefined links only */ 1131 int num_links; /* predefined links only */ 1132 struct list_head dai_link_list; /* all links */ 1133 int num_dai_links; 1134 1135 struct list_head rtd_list; 1136 int num_rtd; 1137 1138 /* optional codec specific configuration */ 1139 struct snd_soc_codec_conf *codec_conf; 1140 int num_configs; 1141 1142 /* 1143 * optional auxiliary devices such as amplifiers or codecs with DAI 1144 * link unused 1145 */ 1146 struct snd_soc_aux_dev *aux_dev; 1147 int num_aux_devs; 1148 struct list_head aux_comp_list; 1149 1150 const struct snd_kcontrol_new *controls; 1151 int num_controls; 1152 1153 /* 1154 * Card-specific routes and widgets. 1155 * Note: of_dapm_xxx for Device Tree; Otherwise for driver build-in. 1156 */ 1157 const struct snd_soc_dapm_widget *dapm_widgets; 1158 int num_dapm_widgets; 1159 const struct snd_soc_dapm_route *dapm_routes; 1160 int num_dapm_routes; 1161 const struct snd_soc_dapm_widget *of_dapm_widgets; 1162 int num_of_dapm_widgets; 1163 const struct snd_soc_dapm_route *of_dapm_routes; 1164 int num_of_dapm_routes; 1165 bool fully_routed; 1166 1167 struct work_struct deferred_resume_work; 1168 1169 /* lists of probed devices belonging to this card */ 1170 struct list_head codec_dev_list; 1171 1172 struct list_head widgets; 1173 struct list_head paths; 1174 struct list_head dapm_list; 1175 struct list_head dapm_dirty; 1176 1177 /* attached dynamic objects */ 1178 struct list_head dobj_list; 1179 1180 /* Generic DAPM context for the card */ 1181 struct snd_soc_dapm_context dapm; 1182 struct snd_soc_dapm_stats dapm_stats; 1183 struct snd_soc_dapm_update *update; 1184 1185 #ifdef CONFIG_DEBUG_FS 1186 struct dentry *debugfs_card_root; 1187 struct dentry *debugfs_pop_time; 1188 #endif 1189 u32 pop_time; 1190 1191 void *drvdata; 1192 }; 1193 1194 /* SoC machine DAI configuration, glues a codec and cpu DAI together */ 1195 struct snd_soc_pcm_runtime { 1196 struct device *dev; 1197 struct snd_soc_card *card; 1198 struct snd_soc_dai_link *dai_link; 1199 struct mutex pcm_mutex; 1200 enum snd_soc_pcm_subclass pcm_subclass; 1201 struct snd_pcm_ops ops; 1202 1203 unsigned int dev_registered:1; 1204 1205 /* Dynamic PCM BE runtime data */ 1206 struct snd_soc_dpcm_runtime dpcm[2]; 1207 int fe_compr; 1208 1209 long pmdown_time; 1210 unsigned char pop_wait:1; 1211 1212 /* runtime devices */ 1213 struct snd_pcm *pcm; 1214 struct snd_compr *compr; 1215 struct snd_soc_codec *codec; 1216 struct snd_soc_platform *platform; 1217 struct snd_soc_dai *codec_dai; 1218 struct snd_soc_dai *cpu_dai; 1219 struct snd_soc_component *component; /* Only valid for AUX dev rtds */ 1220 1221 struct snd_soc_dai **codec_dais; 1222 unsigned int num_codecs; 1223 1224 struct delayed_work delayed_work; 1225 #ifdef CONFIG_DEBUG_FS 1226 struct dentry *debugfs_dpcm_root; 1227 struct dentry *debugfs_dpcm_state; 1228 #endif 1229 1230 unsigned int num; /* 0-based and monotonic increasing */ 1231 struct list_head list; /* rtd list of the soc card */ 1232 }; 1233 1234 /* mixer control */ 1235 struct soc_mixer_control { 1236 int min, max, platform_max; 1237 int reg, rreg; 1238 unsigned int shift, rshift; 1239 unsigned int sign_bit; 1240 unsigned int invert:1; 1241 unsigned int autodisable:1; 1242 struct snd_soc_dobj dobj; 1243 }; 1244 1245 struct soc_bytes { 1246 int base; 1247 int num_regs; 1248 u32 mask; 1249 }; 1250 1251 struct soc_bytes_ext { 1252 int max; 1253 struct snd_soc_dobj dobj; 1254 1255 /* used for TLV byte control */ 1256 int (*get)(struct snd_kcontrol *kcontrol, unsigned int __user *bytes, 1257 unsigned int size); 1258 int (*put)(struct snd_kcontrol *kcontrol, const unsigned int __user *bytes, 1259 unsigned int size); 1260 }; 1261 1262 /* multi register control */ 1263 struct soc_mreg_control { 1264 long min, max; 1265 unsigned int regbase, regcount, nbits, invert; 1266 }; 1267 1268 /* enumerated kcontrol */ 1269 struct soc_enum { 1270 int reg; 1271 unsigned char shift_l; 1272 unsigned char shift_r; 1273 unsigned int items; 1274 unsigned int mask; 1275 const char * const *texts; 1276 const unsigned int *values; 1277 unsigned int autodisable:1; 1278 struct snd_soc_dobj dobj; 1279 }; 1280 1281 /** 1282 * snd_soc_component_to_codec() - Casts a component to the CODEC it is embedded in 1283 * @component: The component to cast to a CODEC 1284 * 1285 * This function must only be used on components that are known to be CODECs. 1286 * Otherwise the behavior is undefined. 1287 */ 1288 static inline struct snd_soc_codec *snd_soc_component_to_codec( 1289 struct snd_soc_component *component) 1290 { 1291 return container_of(component, struct snd_soc_codec, component); 1292 } 1293 1294 /** 1295 * snd_soc_component_to_platform() - Casts a component to the platform it is embedded in 1296 * @component: The component to cast to a platform 1297 * 1298 * This function must only be used on components that are known to be platforms. 1299 * Otherwise the behavior is undefined. 1300 */ 1301 static inline struct snd_soc_platform *snd_soc_component_to_platform( 1302 struct snd_soc_component *component) 1303 { 1304 return container_of(component, struct snd_soc_platform, component); 1305 } 1306 1307 /** 1308 * snd_soc_dapm_to_component() - Casts a DAPM context to the component it is 1309 * embedded in 1310 * @dapm: The DAPM context to cast to the component 1311 * 1312 * This function must only be used on DAPM contexts that are known to be part of 1313 * a component (e.g. in a component driver). Otherwise the behavior is 1314 * undefined. 1315 */ 1316 static inline struct snd_soc_component *snd_soc_dapm_to_component( 1317 struct snd_soc_dapm_context *dapm) 1318 { 1319 return container_of(dapm, struct snd_soc_component, dapm); 1320 } 1321 1322 /** 1323 * snd_soc_dapm_to_codec() - Casts a DAPM context to the CODEC it is embedded in 1324 * @dapm: The DAPM context to cast to the CODEC 1325 * 1326 * This function must only be used on DAPM contexts that are known to be part of 1327 * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. 1328 */ 1329 static inline struct snd_soc_codec *snd_soc_dapm_to_codec( 1330 struct snd_soc_dapm_context *dapm) 1331 { 1332 return snd_soc_component_to_codec(snd_soc_dapm_to_component(dapm)); 1333 } 1334 1335 /** 1336 * snd_soc_dapm_to_platform() - Casts a DAPM context to the platform it is 1337 * embedded in 1338 * @dapm: The DAPM context to cast to the platform. 1339 * 1340 * This function must only be used on DAPM contexts that are known to be part of 1341 * a platform (e.g. in a platform driver). Otherwise the behavior is undefined. 1342 */ 1343 static inline struct snd_soc_platform *snd_soc_dapm_to_platform( 1344 struct snd_soc_dapm_context *dapm) 1345 { 1346 return snd_soc_component_to_platform(snd_soc_dapm_to_component(dapm)); 1347 } 1348 1349 /** 1350 * snd_soc_component_get_dapm() - Returns the DAPM context associated with a 1351 * component 1352 * @component: The component for which to get the DAPM context 1353 */ 1354 static inline struct snd_soc_dapm_context *snd_soc_component_get_dapm( 1355 struct snd_soc_component *component) 1356 { 1357 return &component->dapm; 1358 } 1359 1360 /** 1361 * snd_soc_codec_get_dapm() - Returns the DAPM context for the CODEC 1362 * @codec: The CODEC for which to get the DAPM context 1363 * 1364 * Note: Use this function instead of directly accessing the CODEC's dapm field 1365 */ 1366 static inline struct snd_soc_dapm_context *snd_soc_codec_get_dapm( 1367 struct snd_soc_codec *codec) 1368 { 1369 return snd_soc_component_get_dapm(&codec->component); 1370 } 1371 1372 /** 1373 * snd_soc_dapm_init_bias_level() - Initialize CODEC DAPM bias level 1374 * @codec: The CODEC for which to initialize the DAPM bias level 1375 * @level: The DAPM level to initialize to 1376 * 1377 * Initializes the CODEC DAPM bias level. See snd_soc_dapm_init_bias_level(). 1378 */ 1379 static inline void snd_soc_codec_init_bias_level(struct snd_soc_codec *codec, 1380 enum snd_soc_bias_level level) 1381 { 1382 snd_soc_dapm_init_bias_level(snd_soc_codec_get_dapm(codec), level); 1383 } 1384 1385 /** 1386 * snd_soc_dapm_get_bias_level() - Get current CODEC DAPM bias level 1387 * @codec: The CODEC for which to get the DAPM bias level 1388 * 1389 * Returns: The current DAPM bias level of the CODEC. 1390 */ 1391 static inline enum snd_soc_bias_level snd_soc_codec_get_bias_level( 1392 struct snd_soc_codec *codec) 1393 { 1394 return snd_soc_dapm_get_bias_level(snd_soc_codec_get_dapm(codec)); 1395 } 1396 1397 /** 1398 * snd_soc_codec_force_bias_level() - Set the CODEC DAPM bias level 1399 * @codec: The CODEC for which to set the level 1400 * @level: The level to set to 1401 * 1402 * Forces the CODEC bias level to a specific state. See 1403 * snd_soc_dapm_force_bias_level(). 1404 */ 1405 static inline int snd_soc_codec_force_bias_level(struct snd_soc_codec *codec, 1406 enum snd_soc_bias_level level) 1407 { 1408 return snd_soc_dapm_force_bias_level(snd_soc_codec_get_dapm(codec), 1409 level); 1410 } 1411 1412 /** 1413 * snd_soc_dapm_kcontrol_codec() - Returns the codec associated to a kcontrol 1414 * @kcontrol: The kcontrol 1415 * 1416 * This function must only be used on DAPM contexts that are known to be part of 1417 * a CODEC (e.g. in a CODEC driver). Otherwise the behavior is undefined. 1418 */ 1419 static inline struct snd_soc_codec *snd_soc_dapm_kcontrol_codec( 1420 struct snd_kcontrol *kcontrol) 1421 { 1422 return snd_soc_dapm_to_codec(snd_soc_dapm_kcontrol_dapm(kcontrol)); 1423 } 1424 1425 /* codec IO */ 1426 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); 1427 int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, 1428 unsigned int val); 1429 1430 /** 1431 * snd_soc_cache_sync() - Sync the register cache with the hardware 1432 * @codec: CODEC to sync 1433 * 1434 * Note: This function will call regcache_sync() 1435 */ 1436 static inline int snd_soc_cache_sync(struct snd_soc_codec *codec) 1437 { 1438 return regcache_sync(codec->component.regmap); 1439 } 1440 1441 /* component IO */ 1442 int snd_soc_component_read(struct snd_soc_component *component, 1443 unsigned int reg, unsigned int *val); 1444 int snd_soc_component_write(struct snd_soc_component *component, 1445 unsigned int reg, unsigned int val); 1446 int snd_soc_component_update_bits(struct snd_soc_component *component, 1447 unsigned int reg, unsigned int mask, unsigned int val); 1448 int snd_soc_component_update_bits_async(struct snd_soc_component *component, 1449 unsigned int reg, unsigned int mask, unsigned int val); 1450 void snd_soc_component_async_complete(struct snd_soc_component *component); 1451 int snd_soc_component_test_bits(struct snd_soc_component *component, 1452 unsigned int reg, unsigned int mask, unsigned int value); 1453 1454 #ifdef CONFIG_REGMAP 1455 1456 void snd_soc_component_init_regmap(struct snd_soc_component *component, 1457 struct regmap *regmap); 1458 void snd_soc_component_exit_regmap(struct snd_soc_component *component); 1459 1460 /** 1461 * snd_soc_codec_init_regmap() - Initialize regmap instance for the CODEC 1462 * @codec: The CODEC for which to initialize the regmap instance 1463 * @regmap: The regmap instance that should be used by the CODEC 1464 * 1465 * This function allows deferred assignment of the regmap instance that is 1466 * associated with the CODEC. Only use this if the regmap instance is not yet 1467 * ready when the CODEC is registered. The function must also be called before 1468 * the first IO attempt of the CODEC. 1469 */ 1470 static inline void snd_soc_codec_init_regmap(struct snd_soc_codec *codec, 1471 struct regmap *regmap) 1472 { 1473 snd_soc_component_init_regmap(&codec->component, regmap); 1474 } 1475 1476 /** 1477 * snd_soc_codec_exit_regmap() - De-initialize regmap instance for the CODEC 1478 * @codec: The CODEC for which to de-initialize the regmap instance 1479 * 1480 * Calls regmap_exit() on the regmap instance associated to the CODEC and 1481 * removes the regmap instance from the CODEC. 1482 * 1483 * This function should only be used if snd_soc_codec_init_regmap() was used to 1484 * initialize the regmap instance. 1485 */ 1486 static inline void snd_soc_codec_exit_regmap(struct snd_soc_codec *codec) 1487 { 1488 snd_soc_component_exit_regmap(&codec->component); 1489 } 1490 1491 #endif 1492 1493 /* device driver data */ 1494 1495 static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, 1496 void *data) 1497 { 1498 card->drvdata = data; 1499 } 1500 1501 static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card) 1502 { 1503 return card->drvdata; 1504 } 1505 1506 static inline void snd_soc_component_set_drvdata(struct snd_soc_component *c, 1507 void *data) 1508 { 1509 dev_set_drvdata(c->dev, data); 1510 } 1511 1512 static inline void *snd_soc_component_get_drvdata(struct snd_soc_component *c) 1513 { 1514 return dev_get_drvdata(c->dev); 1515 } 1516 1517 static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec, 1518 void *data) 1519 { 1520 snd_soc_component_set_drvdata(&codec->component, data); 1521 } 1522 1523 static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec) 1524 { 1525 return snd_soc_component_get_drvdata(&codec->component); 1526 } 1527 1528 static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform, 1529 void *data) 1530 { 1531 snd_soc_component_set_drvdata(&platform->component, data); 1532 } 1533 1534 static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform) 1535 { 1536 return snd_soc_component_get_drvdata(&platform->component); 1537 } 1538 1539 static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd, 1540 void *data) 1541 { 1542 dev_set_drvdata(rtd->dev, data); 1543 } 1544 1545 static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd) 1546 { 1547 return dev_get_drvdata(rtd->dev); 1548 } 1549 1550 static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card) 1551 { 1552 INIT_LIST_HEAD(&card->codec_dev_list); 1553 INIT_LIST_HEAD(&card->widgets); 1554 INIT_LIST_HEAD(&card->paths); 1555 INIT_LIST_HEAD(&card->dapm_list); 1556 INIT_LIST_HEAD(&card->aux_comp_list); 1557 } 1558 1559 static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc) 1560 { 1561 if (mc->reg == mc->rreg && mc->shift == mc->rshift) 1562 return 0; 1563 /* 1564 * mc->reg == mc->rreg && mc->shift != mc->rshift, or 1565 * mc->reg != mc->rreg means that the control is 1566 * stereo (bits in one register or in two registers) 1567 */ 1568 return 1; 1569 } 1570 1571 static inline unsigned int snd_soc_enum_val_to_item(struct soc_enum *e, 1572 unsigned int val) 1573 { 1574 unsigned int i; 1575 1576 if (!e->values) 1577 return val; 1578 1579 for (i = 0; i < e->items; i++) 1580 if (val == e->values[i]) 1581 return i; 1582 1583 return 0; 1584 } 1585 1586 static inline unsigned int snd_soc_enum_item_to_val(struct soc_enum *e, 1587 unsigned int item) 1588 { 1589 if (!e->values) 1590 return item; 1591 1592 return e->values[item]; 1593 } 1594 1595 static inline bool snd_soc_component_is_active( 1596 struct snd_soc_component *component) 1597 { 1598 return component->active != 0; 1599 } 1600 1601 static inline bool snd_soc_codec_is_active(struct snd_soc_codec *codec) 1602 { 1603 return snd_soc_component_is_active(&codec->component); 1604 } 1605 1606 /** 1607 * snd_soc_kcontrol_component() - Returns the component that registered the 1608 * control 1609 * @kcontrol: The control for which to get the component 1610 * 1611 * Note: This function will work correctly if the control has been registered 1612 * for a component. Either with snd_soc_add_codec_controls() or 1613 * snd_soc_add_platform_controls() or via table based setup for either a 1614 * CODEC, a platform or component driver. Otherwise the behavior is undefined. 1615 */ 1616 static inline struct snd_soc_component *snd_soc_kcontrol_component( 1617 struct snd_kcontrol *kcontrol) 1618 { 1619 return snd_kcontrol_chip(kcontrol); 1620 } 1621 1622 /** 1623 * snd_soc_kcontrol_codec() - Returns the CODEC that registered the control 1624 * @kcontrol: The control for which to get the CODEC 1625 * 1626 * Note: This function will only work correctly if the control has been 1627 * registered with snd_soc_add_codec_controls() or via table based setup of 1628 * snd_soc_codec_driver. Otherwise the behavior is undefined. 1629 */ 1630 static inline struct snd_soc_codec *snd_soc_kcontrol_codec( 1631 struct snd_kcontrol *kcontrol) 1632 { 1633 return snd_soc_component_to_codec(snd_soc_kcontrol_component(kcontrol)); 1634 } 1635 1636 /** 1637 * snd_soc_kcontrol_platform() - Returns the platform that registered the control 1638 * @kcontrol: The control for which to get the platform 1639 * 1640 * Note: This function will only work correctly if the control has been 1641 * registered with snd_soc_add_platform_controls() or via table based setup of 1642 * a snd_soc_platform_driver. Otherwise the behavior is undefined. 1643 */ 1644 static inline struct snd_soc_platform *snd_soc_kcontrol_platform( 1645 struct snd_kcontrol *kcontrol) 1646 { 1647 return snd_soc_component_to_platform(snd_soc_kcontrol_component(kcontrol)); 1648 } 1649 1650 int snd_soc_util_init(void); 1651 void snd_soc_util_exit(void); 1652 1653 int snd_soc_of_parse_card_name(struct snd_soc_card *card, 1654 const char *propname); 1655 int snd_soc_of_parse_audio_simple_widgets(struct snd_soc_card *card, 1656 const char *propname); 1657 int snd_soc_of_parse_tdm_slot(struct device_node *np, 1658 unsigned int *tx_mask, 1659 unsigned int *rx_mask, 1660 unsigned int *slots, 1661 unsigned int *slot_width); 1662 void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card, 1663 struct snd_soc_codec_conf *codec_conf, 1664 struct device_node *of_node, 1665 const char *propname); 1666 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, 1667 const char *propname); 1668 unsigned int snd_soc_of_parse_daifmt(struct device_node *np, 1669 const char *prefix, 1670 struct device_node **bitclkmaster, 1671 struct device_node **framemaster); 1672 int snd_soc_of_get_dai_name(struct device_node *of_node, 1673 const char **dai_name); 1674 int snd_soc_of_get_dai_link_codecs(struct device *dev, 1675 struct device_node *of_node, 1676 struct snd_soc_dai_link *dai_link); 1677 1678 int snd_soc_add_dai_link(struct snd_soc_card *card, 1679 struct snd_soc_dai_link *dai_link); 1680 void snd_soc_remove_dai_link(struct snd_soc_card *card, 1681 struct snd_soc_dai_link *dai_link); 1682 1683 int snd_soc_register_dai(struct snd_soc_component *component, 1684 struct snd_soc_dai_driver *dai_drv); 1685 1686 struct snd_soc_dai *snd_soc_find_dai( 1687 const struct snd_soc_dai_link_component *dlc); 1688 1689 #include <sound/soc-dai.h> 1690 1691 #ifdef CONFIG_DEBUG_FS 1692 extern struct dentry *snd_soc_debugfs_root; 1693 #endif 1694 1695 extern const struct dev_pm_ops snd_soc_pm_ops; 1696 1697 /* Helper functions */ 1698 static inline void snd_soc_dapm_mutex_lock(struct snd_soc_dapm_context *dapm) 1699 { 1700 mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME); 1701 } 1702 1703 static inline void snd_soc_dapm_mutex_unlock(struct snd_soc_dapm_context *dapm) 1704 { 1705 mutex_unlock(&dapm->card->dapm_mutex); 1706 } 1707 1708 #endif 1709