Kuninori Morimoto | 4eef5a9 | 2018-07-02 06:22:30 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | // |
| 3 | // soc-ops.c -- Generic ASoC operations |
| 4 | // |
| 5 | // Copyright 2005 Wolfson Microelectronics PLC. |
| 6 | // Copyright 2005 Openedhand Ltd. |
| 7 | // Copyright (C) 2010 Slimlogic Ltd. |
| 8 | // Copyright (C) 2010 Texas Instruments Inc. |
| 9 | // |
| 10 | // Author: Liam Girdwood <lrg@slimlogic.co.uk> |
| 11 | // with code, comments and ideas from :- |
| 12 | // Richard Purdie <richard@openedhand.com> |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/moduleparam.h> |
| 16 | #include <linux/init.h> |
| 17 | #include <linux/delay.h> |
| 18 | #include <linux/pm.h> |
| 19 | #include <linux/bitops.h> |
| 20 | #include <linux/ctype.h> |
| 21 | #include <linux/slab.h> |
| 22 | #include <sound/core.h> |
| 23 | #include <sound/jack.h> |
| 24 | #include <sound/pcm.h> |
| 25 | #include <sound/pcm_params.h> |
| 26 | #include <sound/soc.h> |
| 27 | #include <sound/soc-dpcm.h> |
| 28 | #include <sound/initval.h> |
| 29 | |
| 30 | /** |
| 31 | * snd_soc_info_enum_double - enumerated double mixer info callback |
| 32 | * @kcontrol: mixer control |
| 33 | * @uinfo: control element information |
| 34 | * |
| 35 | * Callback to provide information about a double enumerated |
| 36 | * mixer control. |
| 37 | * |
| 38 | * Returns 0 for success. |
| 39 | */ |
| 40 | int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, |
| 41 | struct snd_ctl_elem_info *uinfo) |
| 42 | { |
| 43 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 44 | |
| 45 | return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2, |
| 46 | e->items, e->texts); |
| 47 | } |
| 48 | EXPORT_SYMBOL_GPL(snd_soc_info_enum_double); |
| 49 | |
| 50 | /** |
| 51 | * snd_soc_get_enum_double - enumerated double mixer get callback |
| 52 | * @kcontrol: mixer control |
| 53 | * @ucontrol: control element information |
| 54 | * |
| 55 | * Callback to get the value of a double enumerated mixer. |
| 56 | * |
| 57 | * Returns 0 for success. |
| 58 | */ |
| 59 | int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, |
| 60 | struct snd_ctl_elem_value *ucontrol) |
| 61 | { |
| 62 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 63 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 64 | unsigned int val, item; |
| 65 | unsigned int reg_val; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 66 | |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 67 | reg_val = snd_soc_component_read(component, e->reg); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 68 | val = (reg_val >> e->shift_l) & e->mask; |
| 69 | item = snd_soc_enum_val_to_item(e, val); |
| 70 | ucontrol->value.enumerated.item[0] = item; |
| 71 | if (e->shift_l != e->shift_r) { |
Jaswinder Jassal | 189f06c | 2016-08-29 16:06:58 +0100 | [diff] [blame] | 72 | val = (reg_val >> e->shift_r) & e->mask; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 73 | item = snd_soc_enum_val_to_item(e, val); |
| 74 | ucontrol->value.enumerated.item[1] = item; |
| 75 | } |
| 76 | |
| 77 | return 0; |
| 78 | } |
| 79 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); |
| 80 | |
| 81 | /** |
| 82 | * snd_soc_put_enum_double - enumerated double mixer put callback |
| 83 | * @kcontrol: mixer control |
| 84 | * @ucontrol: control element information |
| 85 | * |
| 86 | * Callback to set the value of a double enumerated mixer. |
| 87 | * |
| 88 | * Returns 0 for success. |
| 89 | */ |
| 90 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, |
| 91 | struct snd_ctl_elem_value *ucontrol) |
| 92 | { |
| 93 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 94 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; |
| 95 | unsigned int *item = ucontrol->value.enumerated.item; |
| 96 | unsigned int val; |
| 97 | unsigned int mask; |
| 98 | |
| 99 | if (item[0] >= e->items) |
| 100 | return -EINVAL; |
| 101 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; |
| 102 | mask = e->mask << e->shift_l; |
| 103 | if (e->shift_l != e->shift_r) { |
| 104 | if (item[1] >= e->items) |
| 105 | return -EINVAL; |
| 106 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; |
| 107 | mask |= e->mask << e->shift_r; |
| 108 | } |
| 109 | |
| 110 | return snd_soc_component_update_bits(component, e->reg, mask, val); |
| 111 | } |
| 112 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); |
| 113 | |
| 114 | /** |
Charles Keepax | 8abab35 | 2017-01-12 11:38:15 +0000 | [diff] [blame] | 115 | * snd_soc_read_signed - Read a codec register and interpret as signed value |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 116 | * @component: component |
| 117 | * @reg: Register to read |
| 118 | * @mask: Mask to use after shifting the register value |
| 119 | * @shift: Right shift of register value |
| 120 | * @sign_bit: Bit that describes if a number is negative or not. |
| 121 | * @signed_val: Pointer to where the read value should be stored |
| 122 | * |
| 123 | * This functions reads a codec register. The register value is shifted right |
| 124 | * by 'shift' bits and masked with the given 'mask'. Afterwards it translates |
| 125 | * the given registervalue into a signed integer if sign_bit is non-zero. |
| 126 | * |
| 127 | * Returns 0 on sucess, otherwise an error value |
| 128 | */ |
| 129 | static int snd_soc_read_signed(struct snd_soc_component *component, |
| 130 | unsigned int reg, unsigned int mask, unsigned int shift, |
| 131 | unsigned int sign_bit, int *signed_val) |
| 132 | { |
| 133 | int ret; |
| 134 | unsigned int val; |
| 135 | |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 136 | val = snd_soc_component_read(component, reg); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 137 | val = (val >> shift) & mask; |
| 138 | |
| 139 | if (!sign_bit) { |
| 140 | *signed_val = val; |
| 141 | return 0; |
| 142 | } |
| 143 | |
| 144 | /* non-negative number */ |
| 145 | if (!(val & BIT(sign_bit))) { |
| 146 | *signed_val = val; |
| 147 | return 0; |
| 148 | } |
| 149 | |
| 150 | ret = val; |
| 151 | |
| 152 | /* |
| 153 | * The register most probably does not contain a full-sized int. |
| 154 | * Instead we have an arbitrary number of bits in a signed |
| 155 | * representation which has to be translated into a full-sized int. |
| 156 | * This is done by filling up all bits above the sign-bit. |
| 157 | */ |
| 158 | ret |= ~((int)(BIT(sign_bit) - 1)); |
| 159 | |
| 160 | *signed_val = ret; |
| 161 | |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * snd_soc_info_volsw - single mixer info callback |
| 167 | * @kcontrol: mixer control |
| 168 | * @uinfo: control element information |
| 169 | * |
| 170 | * Callback to provide information about a single mixer control, or a double |
| 171 | * mixer control that spans 2 registers. |
| 172 | * |
| 173 | * Returns 0 for success. |
| 174 | */ |
| 175 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, |
| 176 | struct snd_ctl_elem_info *uinfo) |
| 177 | { |
| 178 | struct soc_mixer_control *mc = |
| 179 | (struct soc_mixer_control *)kcontrol->private_value; |
| 180 | int platform_max; |
| 181 | |
| 182 | if (!mc->platform_max) |
| 183 | mc->platform_max = mc->max; |
| 184 | platform_max = mc->platform_max; |
| 185 | |
| 186 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) |
| 187 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 188 | else |
| 189 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 190 | |
| 191 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
| 192 | uinfo->value.integer.min = 0; |
| 193 | uinfo->value.integer.max = platform_max - mc->min; |
| 194 | return 0; |
| 195 | } |
| 196 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); |
| 197 | |
| 198 | /** |
Charles Keepax | 3419871 | 2015-10-14 13:31:24 +0100 | [diff] [blame] | 199 | * snd_soc_info_volsw_sx - Mixer info callback for SX TLV controls |
| 200 | * @kcontrol: mixer control |
| 201 | * @uinfo: control element information |
| 202 | * |
| 203 | * Callback to provide information about a single mixer control, or a double |
| 204 | * mixer control that spans 2 registers of the SX TLV type. SX TLV controls |
| 205 | * have a range that represents both positive and negative values either side |
| 206 | * of zero but without a sign bit. |
| 207 | * |
| 208 | * Returns 0 for success. |
| 209 | */ |
| 210 | int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol, |
| 211 | struct snd_ctl_elem_info *uinfo) |
| 212 | { |
| 213 | struct soc_mixer_control *mc = |
| 214 | (struct soc_mixer_control *)kcontrol->private_value; |
| 215 | |
| 216 | snd_soc_info_volsw(kcontrol, uinfo); |
| 217 | /* Max represents the number of levels in an SX control not the |
| 218 | * maximum value, so add the minimum value back on |
| 219 | */ |
| 220 | uinfo->value.integer.max += mc->min; |
| 221 | |
| 222 | return 0; |
| 223 | } |
| 224 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx); |
| 225 | |
| 226 | /** |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 227 | * snd_soc_get_volsw - single mixer get callback |
| 228 | * @kcontrol: mixer control |
| 229 | * @ucontrol: control element information |
| 230 | * |
| 231 | * Callback to get the value of a single mixer control, or a double mixer |
| 232 | * control that spans 2 registers. |
| 233 | * |
| 234 | * Returns 0 for success. |
| 235 | */ |
| 236 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, |
| 237 | struct snd_ctl_elem_value *ucontrol) |
| 238 | { |
| 239 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 240 | struct soc_mixer_control *mc = |
| 241 | (struct soc_mixer_control *)kcontrol->private_value; |
| 242 | unsigned int reg = mc->reg; |
| 243 | unsigned int reg2 = mc->rreg; |
| 244 | unsigned int shift = mc->shift; |
| 245 | unsigned int rshift = mc->rshift; |
| 246 | int max = mc->max; |
| 247 | int min = mc->min; |
| 248 | int sign_bit = mc->sign_bit; |
| 249 | unsigned int mask = (1 << fls(max)) - 1; |
| 250 | unsigned int invert = mc->invert; |
| 251 | int val; |
| 252 | int ret; |
| 253 | |
| 254 | if (sign_bit) |
| 255 | mask = BIT(sign_bit + 1) - 1; |
| 256 | |
| 257 | ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val); |
| 258 | if (ret) |
| 259 | return ret; |
| 260 | |
| 261 | ucontrol->value.integer.value[0] = val - min; |
| 262 | if (invert) |
| 263 | ucontrol->value.integer.value[0] = |
| 264 | max - ucontrol->value.integer.value[0]; |
| 265 | |
| 266 | if (snd_soc_volsw_is_stereo(mc)) { |
| 267 | if (reg == reg2) |
| 268 | ret = snd_soc_read_signed(component, reg, mask, rshift, |
| 269 | sign_bit, &val); |
| 270 | else |
| 271 | ret = snd_soc_read_signed(component, reg2, mask, shift, |
| 272 | sign_bit, &val); |
| 273 | if (ret) |
| 274 | return ret; |
| 275 | |
| 276 | ucontrol->value.integer.value[1] = val - min; |
| 277 | if (invert) |
| 278 | ucontrol->value.integer.value[1] = |
| 279 | max - ucontrol->value.integer.value[1]; |
| 280 | } |
| 281 | |
| 282 | return 0; |
| 283 | } |
| 284 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); |
| 285 | |
| 286 | /** |
| 287 | * snd_soc_put_volsw - single mixer put callback |
| 288 | * @kcontrol: mixer control |
| 289 | * @ucontrol: control element information |
| 290 | * |
| 291 | * Callback to set the value of a single mixer control, or a double mixer |
| 292 | * control that spans 2 registers. |
| 293 | * |
| 294 | * Returns 0 for success. |
| 295 | */ |
| 296 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, |
| 297 | struct snd_ctl_elem_value *ucontrol) |
| 298 | { |
| 299 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 300 | struct soc_mixer_control *mc = |
| 301 | (struct soc_mixer_control *)kcontrol->private_value; |
| 302 | unsigned int reg = mc->reg; |
| 303 | unsigned int reg2 = mc->rreg; |
| 304 | unsigned int shift = mc->shift; |
| 305 | unsigned int rshift = mc->rshift; |
| 306 | int max = mc->max; |
| 307 | int min = mc->min; |
| 308 | unsigned int sign_bit = mc->sign_bit; |
| 309 | unsigned int mask = (1 << fls(max)) - 1; |
| 310 | unsigned int invert = mc->invert; |
Mark Brown | 564778d | 2022-02-01 15:56:26 +0000 | [diff] [blame] | 311 | int err, ret; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 312 | bool type_2r = false; |
| 313 | unsigned int val2 = 0; |
| 314 | unsigned int val, val_mask; |
| 315 | |
| 316 | if (sign_bit) |
| 317 | mask = BIT(sign_bit + 1) - 1; |
| 318 | |
Mark Brown | 1601033 | 2022-01-28 19:24:43 +0000 | [diff] [blame] | 319 | if (ucontrol->value.integer.value[0] < 0) |
| 320 | return -EINVAL; |
Mark Brown | 817f7c9 | 2022-01-24 15:32:51 +0000 | [diff] [blame] | 321 | val = ucontrol->value.integer.value[0]; |
| 322 | if (mc->platform_max && val > mc->platform_max) |
| 323 | return -EINVAL; |
| 324 | if (val > max - min) |
| 325 | return -EINVAL; |
Mark Brown | 817f7c9 | 2022-01-24 15:32:51 +0000 | [diff] [blame] | 326 | val = (val + min) & mask; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 327 | if (invert) |
| 328 | val = max - val; |
| 329 | val_mask = mask << shift; |
| 330 | val = val << shift; |
| 331 | if (snd_soc_volsw_is_stereo(mc)) { |
Mark Brown | 1601033 | 2022-01-28 19:24:43 +0000 | [diff] [blame] | 332 | if (ucontrol->value.integer.value[1] < 0) |
| 333 | return -EINVAL; |
Mark Brown | 817f7c9 | 2022-01-24 15:32:51 +0000 | [diff] [blame] | 334 | val2 = ucontrol->value.integer.value[1]; |
| 335 | if (mc->platform_max && val2 > mc->platform_max) |
| 336 | return -EINVAL; |
| 337 | if (val2 > max - min) |
| 338 | return -EINVAL; |
Mark Brown | 817f7c9 | 2022-01-24 15:32:51 +0000 | [diff] [blame] | 339 | val2 = (val2 + min) & mask; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 340 | if (invert) |
| 341 | val2 = max - val2; |
| 342 | if (reg == reg2) { |
| 343 | val_mask |= mask << rshift; |
| 344 | val |= val2 << rshift; |
| 345 | } else { |
| 346 | val2 = val2 << shift; |
| 347 | type_2r = true; |
| 348 | } |
| 349 | } |
| 350 | err = snd_soc_component_update_bits(component, reg, val_mask, val); |
| 351 | if (err < 0) |
| 352 | return err; |
Mark Brown | 564778d | 2022-02-01 15:56:26 +0000 | [diff] [blame] | 353 | ret = err; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 354 | |
Mark Brown | 564778d | 2022-02-01 15:56:26 +0000 | [diff] [blame] | 355 | if (type_2r) { |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 356 | err = snd_soc_component_update_bits(component, reg2, val_mask, |
Mark Brown | 564778d | 2022-02-01 15:56:26 +0000 | [diff] [blame] | 357 | val2); |
| 358 | /* Don't discard any error code or drop change flag */ |
| 359 | if (ret == 0 || err < 0) { |
| 360 | ret = err; |
| 361 | } |
| 362 | } |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 363 | |
Mark Brown | 564778d | 2022-02-01 15:56:26 +0000 | [diff] [blame] | 364 | return ret; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 365 | } |
| 366 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); |
| 367 | |
| 368 | /** |
| 369 | * snd_soc_get_volsw_sx - single mixer get callback |
| 370 | * @kcontrol: mixer control |
| 371 | * @ucontrol: control element information |
| 372 | * |
| 373 | * Callback to get the value of a single mixer control, or a double mixer |
| 374 | * control that spans 2 registers. |
| 375 | * |
| 376 | * Returns 0 for success. |
| 377 | */ |
| 378 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, |
| 379 | struct snd_ctl_elem_value *ucontrol) |
| 380 | { |
| 381 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 382 | struct soc_mixer_control *mc = |
| 383 | (struct soc_mixer_control *)kcontrol->private_value; |
| 384 | unsigned int reg = mc->reg; |
| 385 | unsigned int reg2 = mc->rreg; |
| 386 | unsigned int shift = mc->shift; |
| 387 | unsigned int rshift = mc->rshift; |
| 388 | int max = mc->max; |
| 389 | int min = mc->min; |
Rohit kumar | ae7d124 | 2018-09-11 14:59:21 +0530 | [diff] [blame] | 390 | unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 391 | unsigned int val; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 392 | |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 393 | val = snd_soc_component_read(component, reg); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 394 | ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask; |
| 395 | |
| 396 | if (snd_soc_volsw_is_stereo(mc)) { |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 397 | val = snd_soc_component_read(component, reg2); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 398 | val = ((val >> rshift) - min) & mask; |
| 399 | ucontrol->value.integer.value[1] = val; |
| 400 | } |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); |
| 405 | |
| 406 | /** |
| 407 | * snd_soc_put_volsw_sx - double mixer set callback |
| 408 | * @kcontrol: mixer control |
Randy Dunlap | 9a11ef7f | 2015-11-23 17:37:54 -0800 | [diff] [blame] | 409 | * @ucontrol: control element information |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 410 | * |
| 411 | * Callback to set the value of a double mixer control that spans 2 registers. |
| 412 | * |
| 413 | * Returns 0 for success. |
| 414 | */ |
| 415 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, |
| 416 | struct snd_ctl_elem_value *ucontrol) |
| 417 | { |
| 418 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 419 | struct soc_mixer_control *mc = |
| 420 | (struct soc_mixer_control *)kcontrol->private_value; |
| 421 | |
| 422 | unsigned int reg = mc->reg; |
| 423 | unsigned int reg2 = mc->rreg; |
| 424 | unsigned int shift = mc->shift; |
| 425 | unsigned int rshift = mc->rshift; |
| 426 | int max = mc->max; |
| 427 | int min = mc->min; |
Rohit kumar | ae7d124 | 2018-09-11 14:59:21 +0530 | [diff] [blame] | 428 | unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 429 | int err = 0; |
Mark Brown | 7f3d90a | 2022-02-01 15:56:27 +0000 | [diff] [blame] | 430 | int ret; |
Kuninori Morimoto | 58f42df | 2021-08-03 14:00:37 +0900 | [diff] [blame] | 431 | unsigned int val, val_mask; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 432 | |
Mark Brown | 1601033 | 2022-01-28 19:24:43 +0000 | [diff] [blame] | 433 | if (ucontrol->value.integer.value[0] < 0) |
| 434 | return -EINVAL; |
Mark Brown | 4f1e50d | 2022-01-24 15:32:52 +0000 | [diff] [blame] | 435 | val = ucontrol->value.integer.value[0]; |
| 436 | if (mc->platform_max && val > mc->platform_max) |
| 437 | return -EINVAL; |
| 438 | if (val > max - min) |
| 439 | return -EINVAL; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 440 | val_mask = mask << shift; |
Mark Brown | 4f1e50d | 2022-01-24 15:32:52 +0000 | [diff] [blame] | 441 | val = (val + min) & mask; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 442 | val = val << shift; |
| 443 | |
| 444 | err = snd_soc_component_update_bits(component, reg, val_mask, val); |
| 445 | if (err < 0) |
| 446 | return err; |
Mark Brown | 7f3d90a | 2022-02-01 15:56:27 +0000 | [diff] [blame] | 447 | ret = err; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 448 | |
| 449 | if (snd_soc_volsw_is_stereo(mc)) { |
Kuninori Morimoto | 58f42df | 2021-08-03 14:00:37 +0900 | [diff] [blame] | 450 | unsigned int val2; |
| 451 | |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 452 | val_mask = mask << rshift; |
| 453 | val2 = (ucontrol->value.integer.value[1] + min) & mask; |
| 454 | val2 = val2 << rshift; |
| 455 | |
| 456 | err = snd_soc_component_update_bits(component, reg2, val_mask, |
| 457 | val2); |
Mark Brown | 7f3d90a | 2022-02-01 15:56:27 +0000 | [diff] [blame] | 458 | |
| 459 | /* Don't discard any error code or drop change flag */ |
| 460 | if (ret == 0 || err < 0) { |
| 461 | ret = err; |
| 462 | } |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 463 | } |
| 464 | return err; |
| 465 | } |
| 466 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); |
| 467 | |
| 468 | /** |
| 469 | * snd_soc_info_volsw_range - single mixer info callback with range. |
| 470 | * @kcontrol: mixer control |
| 471 | * @uinfo: control element information |
| 472 | * |
| 473 | * Callback to provide information, within a range, about a single |
| 474 | * mixer control. |
| 475 | * |
| 476 | * returns 0 for success. |
| 477 | */ |
| 478 | int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, |
| 479 | struct snd_ctl_elem_info *uinfo) |
| 480 | { |
| 481 | struct soc_mixer_control *mc = |
| 482 | (struct soc_mixer_control *)kcontrol->private_value; |
| 483 | int platform_max; |
| 484 | int min = mc->min; |
| 485 | |
| 486 | if (!mc->platform_max) |
| 487 | mc->platform_max = mc->max; |
| 488 | platform_max = mc->platform_max; |
| 489 | |
| 490 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 491 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; |
| 492 | uinfo->value.integer.min = 0; |
| 493 | uinfo->value.integer.max = platform_max - min; |
| 494 | |
| 495 | return 0; |
| 496 | } |
| 497 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); |
| 498 | |
| 499 | /** |
| 500 | * snd_soc_put_volsw_range - single mixer put value callback with range. |
| 501 | * @kcontrol: mixer control |
| 502 | * @ucontrol: control element information |
| 503 | * |
| 504 | * Callback to set the value, within a range, for a single mixer control. |
| 505 | * |
| 506 | * Returns 0 for success. |
| 507 | */ |
| 508 | int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, |
| 509 | struct snd_ctl_elem_value *ucontrol) |
| 510 | { |
| 511 | struct soc_mixer_control *mc = |
| 512 | (struct soc_mixer_control *)kcontrol->private_value; |
| 513 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 514 | unsigned int reg = mc->reg; |
| 515 | unsigned int rreg = mc->rreg; |
| 516 | unsigned int shift = mc->shift; |
| 517 | int min = mc->min; |
| 518 | int max = mc->max; |
| 519 | unsigned int mask = (1 << fls(max)) - 1; |
| 520 | unsigned int invert = mc->invert; |
| 521 | unsigned int val, val_mask; |
Mark Brown | 650204d | 2022-02-01 15:56:28 +0000 | [diff] [blame] | 522 | int err, ret; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 523 | |
| 524 | if (invert) |
| 525 | val = (max - ucontrol->value.integer.value[0]) & mask; |
| 526 | else |
| 527 | val = ((ucontrol->value.integer.value[0] + min) & mask); |
| 528 | val_mask = mask << shift; |
| 529 | val = val << shift; |
| 530 | |
Mark Brown | 650204d | 2022-02-01 15:56:28 +0000 | [diff] [blame] | 531 | err = snd_soc_component_update_bits(component, reg, val_mask, val); |
| 532 | if (err < 0) |
| 533 | return err; |
| 534 | ret = err; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 535 | |
| 536 | if (snd_soc_volsw_is_stereo(mc)) { |
| 537 | if (invert) |
| 538 | val = (max - ucontrol->value.integer.value[1]) & mask; |
| 539 | else |
| 540 | val = ((ucontrol->value.integer.value[1] + min) & mask); |
| 541 | val_mask = mask << shift; |
| 542 | val = val << shift; |
| 543 | |
Mark Brown | 650204d | 2022-02-01 15:56:28 +0000 | [diff] [blame] | 544 | err = snd_soc_component_update_bits(component, rreg, val_mask, |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 545 | val); |
Mark Brown | 650204d | 2022-02-01 15:56:28 +0000 | [diff] [blame] | 546 | /* Don't discard any error code or drop change flag */ |
| 547 | if (ret == 0 || err < 0) { |
| 548 | ret = err; |
| 549 | } |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | return ret; |
| 553 | } |
| 554 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); |
| 555 | |
| 556 | /** |
| 557 | * snd_soc_get_volsw_range - single mixer get callback with range |
| 558 | * @kcontrol: mixer control |
| 559 | * @ucontrol: control element information |
| 560 | * |
| 561 | * Callback to get the value, within a range, of a single mixer control. |
| 562 | * |
| 563 | * Returns 0 for success. |
| 564 | */ |
| 565 | int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, |
| 566 | struct snd_ctl_elem_value *ucontrol) |
| 567 | { |
| 568 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 569 | struct soc_mixer_control *mc = |
| 570 | (struct soc_mixer_control *)kcontrol->private_value; |
| 571 | unsigned int reg = mc->reg; |
| 572 | unsigned int rreg = mc->rreg; |
| 573 | unsigned int shift = mc->shift; |
| 574 | int min = mc->min; |
| 575 | int max = mc->max; |
| 576 | unsigned int mask = (1 << fls(max)) - 1; |
| 577 | unsigned int invert = mc->invert; |
| 578 | unsigned int val; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 579 | |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 580 | val = snd_soc_component_read(component, reg); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 581 | ucontrol->value.integer.value[0] = (val >> shift) & mask; |
| 582 | if (invert) |
| 583 | ucontrol->value.integer.value[0] = |
| 584 | max - ucontrol->value.integer.value[0]; |
| 585 | else |
| 586 | ucontrol->value.integer.value[0] = |
| 587 | ucontrol->value.integer.value[0] - min; |
| 588 | |
| 589 | if (snd_soc_volsw_is_stereo(mc)) { |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 590 | val = snd_soc_component_read(component, rreg); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 591 | ucontrol->value.integer.value[1] = (val >> shift) & mask; |
| 592 | if (invert) |
| 593 | ucontrol->value.integer.value[1] = |
| 594 | max - ucontrol->value.integer.value[1]; |
| 595 | else |
| 596 | ucontrol->value.integer.value[1] = |
| 597 | ucontrol->value.integer.value[1] - min; |
| 598 | } |
| 599 | |
| 600 | return 0; |
| 601 | } |
| 602 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); |
| 603 | |
| 604 | /** |
| 605 | * snd_soc_limit_volume - Set new limit to an existing volume control. |
| 606 | * |
Lars-Peter Clausen | 26d9ca3 | 2015-10-18 17:04:33 +0200 | [diff] [blame] | 607 | * @card: where to look for the control |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 608 | * @name: Name of the control |
| 609 | * @max: new maximum limit |
| 610 | * |
| 611 | * Return 0 for success, else error. |
| 612 | */ |
Lars-Peter Clausen | 26d9ca3 | 2015-10-18 17:04:33 +0200 | [diff] [blame] | 613 | int snd_soc_limit_volume(struct snd_soc_card *card, |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 614 | const char *name, int max) |
| 615 | { |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 616 | struct snd_kcontrol *kctl; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 617 | int ret = -EINVAL; |
| 618 | |
| 619 | /* Sanity check for name and max */ |
| 620 | if (unlikely(!name || max <= 0)) |
| 621 | return -EINVAL; |
| 622 | |
Kuninori Morimoto | 0881ab6 | 2019-10-02 14:23:14 +0900 | [diff] [blame] | 623 | kctl = snd_soc_card_get_kcontrol(card, name); |
| 624 | if (kctl) { |
Kuninori Morimoto | 872040f | 2021-08-03 14:00:49 +0900 | [diff] [blame] | 625 | struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 626 | if (max <= mc->max) { |
| 627 | mc->platform_max = max; |
| 628 | ret = 0; |
| 629 | } |
| 630 | } |
| 631 | return ret; |
| 632 | } |
| 633 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); |
| 634 | |
| 635 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, |
| 636 | struct snd_ctl_elem_info *uinfo) |
| 637 | { |
| 638 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 639 | struct soc_bytes *params = (void *)kcontrol->private_value; |
| 640 | |
| 641 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
| 642 | uinfo->count = params->num_regs * component->val_bytes; |
| 643 | |
| 644 | return 0; |
| 645 | } |
| 646 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); |
| 647 | |
| 648 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, |
| 649 | struct snd_ctl_elem_value *ucontrol) |
| 650 | { |
| 651 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 652 | struct soc_bytes *params = (void *)kcontrol->private_value; |
| 653 | int ret; |
| 654 | |
| 655 | if (component->regmap) |
| 656 | ret = regmap_raw_read(component->regmap, params->base, |
| 657 | ucontrol->value.bytes.data, |
| 658 | params->num_regs * component->val_bytes); |
| 659 | else |
| 660 | ret = -EINVAL; |
| 661 | |
| 662 | /* Hide any masked bytes to ensure consistent data reporting */ |
| 663 | if (ret == 0 && params->mask) { |
| 664 | switch (component->val_bytes) { |
| 665 | case 1: |
| 666 | ucontrol->value.bytes.data[0] &= ~params->mask; |
| 667 | break; |
| 668 | case 2: |
| 669 | ((u16 *)(&ucontrol->value.bytes.data))[0] |
| 670 | &= cpu_to_be16(~params->mask); |
| 671 | break; |
| 672 | case 4: |
| 673 | ((u32 *)(&ucontrol->value.bytes.data))[0] |
| 674 | &= cpu_to_be32(~params->mask); |
| 675 | break; |
| 676 | default: |
| 677 | return -EINVAL; |
| 678 | } |
| 679 | } |
| 680 | |
| 681 | return ret; |
| 682 | } |
| 683 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); |
| 684 | |
| 685 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, |
| 686 | struct snd_ctl_elem_value *ucontrol) |
| 687 | { |
| 688 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 689 | struct soc_bytes *params = (void *)kcontrol->private_value; |
| 690 | int ret, len; |
| 691 | unsigned int val, mask; |
| 692 | void *data; |
| 693 | |
| 694 | if (!component->regmap || !params->num_regs) |
| 695 | return -EINVAL; |
| 696 | |
| 697 | len = params->num_regs * component->val_bytes; |
| 698 | |
| 699 | data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA); |
| 700 | if (!data) |
| 701 | return -ENOMEM; |
| 702 | |
| 703 | /* |
| 704 | * If we've got a mask then we need to preserve the register |
| 705 | * bits. We shouldn't modify the incoming data so take a |
| 706 | * copy. |
| 707 | */ |
| 708 | if (params->mask) { |
| 709 | ret = regmap_read(component->regmap, params->base, &val); |
| 710 | if (ret != 0) |
| 711 | goto out; |
| 712 | |
| 713 | val &= params->mask; |
| 714 | |
| 715 | switch (component->val_bytes) { |
| 716 | case 1: |
| 717 | ((u8 *)data)[0] &= ~params->mask; |
| 718 | ((u8 *)data)[0] |= val; |
| 719 | break; |
| 720 | case 2: |
| 721 | mask = ~params->mask; |
| 722 | ret = regmap_parse_val(component->regmap, |
| 723 | &mask, &mask); |
| 724 | if (ret != 0) |
| 725 | goto out; |
| 726 | |
| 727 | ((u16 *)data)[0] &= mask; |
| 728 | |
| 729 | ret = regmap_parse_val(component->regmap, |
| 730 | &val, &val); |
| 731 | if (ret != 0) |
| 732 | goto out; |
| 733 | |
| 734 | ((u16 *)data)[0] |= val; |
| 735 | break; |
| 736 | case 4: |
| 737 | mask = ~params->mask; |
| 738 | ret = regmap_parse_val(component->regmap, |
| 739 | &mask, &mask); |
| 740 | if (ret != 0) |
| 741 | goto out; |
| 742 | |
| 743 | ((u32 *)data)[0] &= mask; |
| 744 | |
| 745 | ret = regmap_parse_val(component->regmap, |
| 746 | &val, &val); |
| 747 | if (ret != 0) |
| 748 | goto out; |
| 749 | |
| 750 | ((u32 *)data)[0] |= val; |
| 751 | break; |
| 752 | default: |
| 753 | ret = -EINVAL; |
| 754 | goto out; |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | ret = regmap_raw_write(component->regmap, params->base, |
| 759 | data, len); |
| 760 | |
| 761 | out: |
| 762 | kfree(data); |
| 763 | |
| 764 | return ret; |
| 765 | } |
| 766 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); |
| 767 | |
| 768 | int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, |
| 769 | struct snd_ctl_elem_info *ucontrol) |
| 770 | { |
| 771 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; |
| 772 | |
| 773 | ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES; |
| 774 | ucontrol->count = params->max; |
| 775 | |
| 776 | return 0; |
| 777 | } |
| 778 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext); |
| 779 | |
| 780 | int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, |
| 781 | unsigned int size, unsigned int __user *tlv) |
| 782 | { |
| 783 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; |
| 784 | unsigned int count = size < params->max ? size : params->max; |
| 785 | int ret = -ENXIO; |
| 786 | |
| 787 | switch (op_flag) { |
| 788 | case SNDRV_CTL_TLV_OP_READ: |
| 789 | if (params->get) |
Mythri P K | a1e5e7e9 | 2015-11-09 23:20:00 +0530 | [diff] [blame] | 790 | ret = params->get(kcontrol, tlv, count); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 791 | break; |
| 792 | case SNDRV_CTL_TLV_OP_WRITE: |
| 793 | if (params->put) |
Mythri P K | a1e5e7e9 | 2015-11-09 23:20:00 +0530 | [diff] [blame] | 794 | ret = params->put(kcontrol, tlv, count); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 795 | break; |
| 796 | } |
| 797 | return ret; |
| 798 | } |
| 799 | EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback); |
| 800 | |
| 801 | /** |
| 802 | * snd_soc_info_xr_sx - signed multi register info callback |
| 803 | * @kcontrol: mreg control |
| 804 | * @uinfo: control element information |
| 805 | * |
| 806 | * Callback to provide information of a control that can |
| 807 | * span multiple codec registers which together |
| 808 | * forms a single signed value in a MSB/LSB manner. |
| 809 | * |
| 810 | * Returns 0 for success. |
| 811 | */ |
| 812 | int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, |
| 813 | struct snd_ctl_elem_info *uinfo) |
| 814 | { |
| 815 | struct soc_mreg_control *mc = |
| 816 | (struct soc_mreg_control *)kcontrol->private_value; |
| 817 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 818 | uinfo->count = 1; |
| 819 | uinfo->value.integer.min = mc->min; |
| 820 | uinfo->value.integer.max = mc->max; |
| 821 | |
| 822 | return 0; |
| 823 | } |
| 824 | EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); |
| 825 | |
| 826 | /** |
| 827 | * snd_soc_get_xr_sx - signed multi register get callback |
| 828 | * @kcontrol: mreg control |
| 829 | * @ucontrol: control element information |
| 830 | * |
| 831 | * Callback to get the value of a control that can span |
| 832 | * multiple codec registers which together forms a single |
| 833 | * signed value in a MSB/LSB manner. The control supports |
| 834 | * specifying total no of bits used to allow for bitfields |
| 835 | * across the multiple codec registers. |
| 836 | * |
| 837 | * Returns 0 for success. |
| 838 | */ |
| 839 | int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, |
| 840 | struct snd_ctl_elem_value *ucontrol) |
| 841 | { |
| 842 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 843 | struct soc_mreg_control *mc = |
| 844 | (struct soc_mreg_control *)kcontrol->private_value; |
| 845 | unsigned int regbase = mc->regbase; |
| 846 | unsigned int regcount = mc->regcount; |
| 847 | unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; |
이경택 | 0ab0709 | 2020-03-30 16:35:59 +0900 | [diff] [blame] | 848 | unsigned int regwmask = (1UL<<regwshift)-1; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 849 | unsigned int invert = mc->invert; |
| 850 | unsigned long mask = (1UL<<mc->nbits)-1; |
| 851 | long min = mc->min; |
| 852 | long max = mc->max; |
| 853 | long val = 0; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 854 | unsigned int i; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 855 | |
| 856 | for (i = 0; i < regcount; i++) { |
Kuninori Morimoto | b1ebecb9 | 2021-08-03 14:00:55 +0900 | [diff] [blame] | 857 | unsigned int regval = snd_soc_component_read(component, regbase+i); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 858 | val |= (regval & regwmask) << (regwshift*(regcount-i-1)); |
| 859 | } |
| 860 | val &= mask; |
| 861 | if (min < 0 && val > max) |
| 862 | val |= ~mask; |
| 863 | if (invert) |
| 864 | val = max - val; |
| 865 | ucontrol->value.integer.value[0] = val; |
| 866 | |
| 867 | return 0; |
| 868 | } |
| 869 | EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); |
| 870 | |
| 871 | /** |
| 872 | * snd_soc_put_xr_sx - signed multi register get callback |
| 873 | * @kcontrol: mreg control |
| 874 | * @ucontrol: control element information |
| 875 | * |
| 876 | * Callback to set the value of a control that can span |
| 877 | * multiple codec registers which together forms a single |
| 878 | * signed value in a MSB/LSB manner. The control supports |
| 879 | * specifying total no of bits used to allow for bitfields |
| 880 | * across the multiple codec registers. |
| 881 | * |
| 882 | * Returns 0 for success. |
| 883 | */ |
| 884 | int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, |
| 885 | struct snd_ctl_elem_value *ucontrol) |
| 886 | { |
| 887 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 888 | struct soc_mreg_control *mc = |
| 889 | (struct soc_mreg_control *)kcontrol->private_value; |
| 890 | unsigned int regbase = mc->regbase; |
| 891 | unsigned int regcount = mc->regcount; |
| 892 | unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; |
이경택 | 0ab0709 | 2020-03-30 16:35:59 +0900 | [diff] [blame] | 893 | unsigned int regwmask = (1UL<<regwshift)-1; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 894 | unsigned int invert = mc->invert; |
| 895 | unsigned long mask = (1UL<<mc->nbits)-1; |
| 896 | long max = mc->max; |
| 897 | long val = ucontrol->value.integer.value[0]; |
Mark Brown | 2b7c4636 | 2022-02-01 15:56:29 +0000 | [diff] [blame] | 898 | int ret = 0; |
Kuninori Morimoto | b285b51 | 2021-08-03 14:01:00 +0900 | [diff] [blame] | 899 | unsigned int i; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 900 | |
Mark Brown | 4cf28e9 | 2022-01-24 15:32:53 +0000 | [diff] [blame] | 901 | if (val < mc->min || val > mc->max) |
| 902 | return -EINVAL; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 903 | if (invert) |
| 904 | val = max - val; |
| 905 | val &= mask; |
| 906 | for (i = 0; i < regcount; i++) { |
Kuninori Morimoto | b285b51 | 2021-08-03 14:01:00 +0900 | [diff] [blame] | 907 | unsigned int regval = (val >> (regwshift*(regcount-i-1))) & regwmask; |
| 908 | unsigned int regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; |
| 909 | int err = snd_soc_component_update_bits(component, regbase+i, |
| 910 | regmask, regval); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 911 | if (err < 0) |
| 912 | return err; |
Mark Brown | 2b7c4636 | 2022-02-01 15:56:29 +0000 | [diff] [blame] | 913 | if (err > 0) |
| 914 | ret = err; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 915 | } |
| 916 | |
Mark Brown | 2b7c4636 | 2022-02-01 15:56:29 +0000 | [diff] [blame] | 917 | return ret; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 918 | } |
| 919 | EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); |
| 920 | |
| 921 | /** |
| 922 | * snd_soc_get_strobe - strobe get callback |
| 923 | * @kcontrol: mixer control |
| 924 | * @ucontrol: control element information |
| 925 | * |
| 926 | * Callback get the value of a strobe mixer control. |
| 927 | * |
| 928 | * Returns 0 for success. |
| 929 | */ |
| 930 | int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, |
| 931 | struct snd_ctl_elem_value *ucontrol) |
| 932 | { |
| 933 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 934 | struct soc_mixer_control *mc = |
| 935 | (struct soc_mixer_control *)kcontrol->private_value; |
| 936 | unsigned int reg = mc->reg; |
| 937 | unsigned int shift = mc->shift; |
| 938 | unsigned int mask = 1 << shift; |
| 939 | unsigned int invert = mc->invert != 0; |
| 940 | unsigned int val; |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 941 | |
Kuninori Morimoto | cf6e26c | 2020-06-16 14:19:41 +0900 | [diff] [blame] | 942 | val = snd_soc_component_read(component, reg); |
Mark Brown | 7077148 | 2014-10-28 22:15:31 +0000 | [diff] [blame] | 943 | val &= mask; |
| 944 | |
| 945 | if (shift != 0 && val != 0) |
| 946 | val = val >> shift; |
| 947 | ucontrol->value.enumerated.item[0] = val ^ invert; |
| 948 | |
| 949 | return 0; |
| 950 | } |
| 951 | EXPORT_SYMBOL_GPL(snd_soc_get_strobe); |
| 952 | |
| 953 | /** |
| 954 | * snd_soc_put_strobe - strobe put callback |
| 955 | * @kcontrol: mixer control |
| 956 | * @ucontrol: control element information |
| 957 | * |
| 958 | * Callback strobe a register bit to high then low (or the inverse) |
| 959 | * in one pass of a single mixer enum control. |
| 960 | * |
| 961 | * Returns 1 for success. |
| 962 | */ |
| 963 | int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, |
| 964 | struct snd_ctl_elem_value *ucontrol) |
| 965 | { |
| 966 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); |
| 967 | struct soc_mixer_control *mc = |
| 968 | (struct soc_mixer_control *)kcontrol->private_value; |
| 969 | unsigned int reg = mc->reg; |
| 970 | unsigned int shift = mc->shift; |
| 971 | unsigned int mask = 1 << shift; |
| 972 | unsigned int invert = mc->invert != 0; |
| 973 | unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; |
| 974 | unsigned int val1 = (strobe ^ invert) ? mask : 0; |
| 975 | unsigned int val2 = (strobe ^ invert) ? 0 : mask; |
| 976 | int err; |
| 977 | |
| 978 | err = snd_soc_component_update_bits(component, reg, mask, val1); |
| 979 | if (err < 0) |
| 980 | return err; |
| 981 | |
| 982 | return snd_soc_component_update_bits(component, reg, mask, val2); |
| 983 | } |
| 984 | EXPORT_SYMBOL_GPL(snd_soc_put_strobe); |