blob: 03ea9591fb164e0979baae743b555ef0ec66208b [file] [log] [blame]
Kuninori Morimoto4eef5a92018-07-02 06:22:30 +00001// 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 Brown70771482014-10-28 22:15:31 +000013
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 */
40int 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}
48EXPORT_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 */
59int 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 Brown70771482014-10-28 22:15:31 +000066
Kuninori Morimotocf6e26c2020-06-16 14:19:41 +090067 reg_val = snd_soc_component_read(component, e->reg);
Mark Brown70771482014-10-28 22:15:31 +000068 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 Jassal189f06c2016-08-29 16:06:58 +010072 val = (reg_val >> e->shift_r) & e->mask;
Mark Brown70771482014-10-28 22:15:31 +000073 item = snd_soc_enum_val_to_item(e, val);
74 ucontrol->value.enumerated.item[1] = item;
75 }
76
77 return 0;
78}
79EXPORT_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 */
90int 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}
112EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
113
114/**
Charles Keepax8abab352017-01-12 11:38:15 +0000115 * snd_soc_read_signed - Read a codec register and interpret as signed value
Mark Brown70771482014-10-28 22:15:31 +0000116 * @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 */
129static 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 Morimotocf6e26c2020-06-16 14:19:41 +0900136 val = snd_soc_component_read(component, reg);
Mark Brown70771482014-10-28 22:15:31 +0000137 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 */
175int 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}
196EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
197
198/**
Charles Keepax34198712015-10-14 13:31:24 +0100199 * 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 */
210int 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}
224EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx);
225
226/**
Mark Brown70771482014-10-28 22:15:31 +0000227 * 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 */
236int 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}
284EXPORT_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 */
296int 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 Brown564778d2022-02-01 15:56:26 +0000311 int err, ret;
Mark Brown70771482014-10-28 22:15:31 +0000312 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 Brown16010332022-01-28 19:24:43 +0000319 if (ucontrol->value.integer.value[0] < 0)
320 return -EINVAL;
Mark Brown817f7c92022-01-24 15:32:51 +0000321 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 Brown817f7c92022-01-24 15:32:51 +0000326 val = (val + min) & mask;
Mark Brown70771482014-10-28 22:15:31 +0000327 if (invert)
328 val = max - val;
329 val_mask = mask << shift;
330 val = val << shift;
331 if (snd_soc_volsw_is_stereo(mc)) {
Mark Brown16010332022-01-28 19:24:43 +0000332 if (ucontrol->value.integer.value[1] < 0)
333 return -EINVAL;
Mark Brown817f7c92022-01-24 15:32:51 +0000334 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 Brown817f7c92022-01-24 15:32:51 +0000339 val2 = (val2 + min) & mask;
Mark Brown70771482014-10-28 22:15:31 +0000340 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 Brown564778d2022-02-01 15:56:26 +0000353 ret = err;
Mark Brown70771482014-10-28 22:15:31 +0000354
Mark Brown564778d2022-02-01 15:56:26 +0000355 if (type_2r) {
Mark Brown70771482014-10-28 22:15:31 +0000356 err = snd_soc_component_update_bits(component, reg2, val_mask,
Mark Brown564778d2022-02-01 15:56:26 +0000357 val2);
358 /* Don't discard any error code or drop change flag */
359 if (ret == 0 || err < 0) {
360 ret = err;
361 }
362 }
Mark Brown70771482014-10-28 22:15:31 +0000363
Mark Brown564778d2022-02-01 15:56:26 +0000364 return ret;
Mark Brown70771482014-10-28 22:15:31 +0000365}
366EXPORT_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 */
378int 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 kumarae7d1242018-09-11 14:59:21 +0530390 unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
Mark Brown70771482014-10-28 22:15:31 +0000391 unsigned int val;
Mark Brown70771482014-10-28 22:15:31 +0000392
Kuninori Morimotocf6e26c2020-06-16 14:19:41 +0900393 val = snd_soc_component_read(component, reg);
Mark Brown70771482014-10-28 22:15:31 +0000394 ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask;
395
396 if (snd_soc_volsw_is_stereo(mc)) {
Kuninori Morimotocf6e26c2020-06-16 14:19:41 +0900397 val = snd_soc_component_read(component, reg2);
Mark Brown70771482014-10-28 22:15:31 +0000398 val = ((val >> rshift) - min) & mask;
399 ucontrol->value.integer.value[1] = val;
400 }
401
402 return 0;
403}
404EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
405
406/**
407 * snd_soc_put_volsw_sx - double mixer set callback
408 * @kcontrol: mixer control
Randy Dunlap9a11ef7f2015-11-23 17:37:54 -0800409 * @ucontrol: control element information
Mark Brown70771482014-10-28 22:15:31 +0000410 *
411 * Callback to set the value of a double mixer control that spans 2 registers.
412 *
413 * Returns 0 for success.
414 */
415int 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 kumarae7d1242018-09-11 14:59:21 +0530428 unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
Mark Brown70771482014-10-28 22:15:31 +0000429 int err = 0;
Mark Brown7f3d90a2022-02-01 15:56:27 +0000430 int ret;
Kuninori Morimoto58f42df2021-08-03 14:00:37 +0900431 unsigned int val, val_mask;
Mark Brown70771482014-10-28 22:15:31 +0000432
Mark Brown16010332022-01-28 19:24:43 +0000433 if (ucontrol->value.integer.value[0] < 0)
434 return -EINVAL;
Mark Brown4f1e50d2022-01-24 15:32:52 +0000435 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 Brown70771482014-10-28 22:15:31 +0000440 val_mask = mask << shift;
Mark Brown4f1e50d2022-01-24 15:32:52 +0000441 val = (val + min) & mask;
Mark Brown70771482014-10-28 22:15:31 +0000442 val = val << shift;
443
444 err = snd_soc_component_update_bits(component, reg, val_mask, val);
445 if (err < 0)
446 return err;
Mark Brown7f3d90a2022-02-01 15:56:27 +0000447 ret = err;
Mark Brown70771482014-10-28 22:15:31 +0000448
449 if (snd_soc_volsw_is_stereo(mc)) {
Kuninori Morimoto58f42df2021-08-03 14:00:37 +0900450 unsigned int val2;
451
Mark Brown70771482014-10-28 22:15:31 +0000452 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 Brown7f3d90a2022-02-01 15:56:27 +0000458
459 /* Don't discard any error code or drop change flag */
460 if (ret == 0 || err < 0) {
461 ret = err;
462 }
Mark Brown70771482014-10-28 22:15:31 +0000463 }
464 return err;
465}
466EXPORT_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 */
478int 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}
497EXPORT_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 */
508int 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 Brown650204d2022-02-01 15:56:28 +0000522 int err, ret;
Mark Brown70771482014-10-28 22:15:31 +0000523
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 Brown650204d2022-02-01 15:56:28 +0000531 err = snd_soc_component_update_bits(component, reg, val_mask, val);
532 if (err < 0)
533 return err;
534 ret = err;
Mark Brown70771482014-10-28 22:15:31 +0000535
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 Brown650204d2022-02-01 15:56:28 +0000544 err = snd_soc_component_update_bits(component, rreg, val_mask,
Mark Brown70771482014-10-28 22:15:31 +0000545 val);
Mark Brown650204d2022-02-01 15:56:28 +0000546 /* Don't discard any error code or drop change flag */
547 if (ret == 0 || err < 0) {
548 ret = err;
549 }
Mark Brown70771482014-10-28 22:15:31 +0000550 }
551
552 return ret;
553}
554EXPORT_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 */
565int 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 Brown70771482014-10-28 22:15:31 +0000579
Kuninori Morimotocf6e26c2020-06-16 14:19:41 +0900580 val = snd_soc_component_read(component, reg);
Mark Brown70771482014-10-28 22:15:31 +0000581 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 Morimotocf6e26c2020-06-16 14:19:41 +0900590 val = snd_soc_component_read(component, rreg);
Mark Brown70771482014-10-28 22:15:31 +0000591 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}
602EXPORT_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 Clausen26d9ca32015-10-18 17:04:33 +0200607 * @card: where to look for the control
Mark Brown70771482014-10-28 22:15:31 +0000608 * @name: Name of the control
609 * @max: new maximum limit
610 *
611 * Return 0 for success, else error.
612 */
Lars-Peter Clausen26d9ca32015-10-18 17:04:33 +0200613int snd_soc_limit_volume(struct snd_soc_card *card,
Mark Brown70771482014-10-28 22:15:31 +0000614 const char *name, int max)
615{
Mark Brown70771482014-10-28 22:15:31 +0000616 struct snd_kcontrol *kctl;
Mark Brown70771482014-10-28 22:15:31 +0000617 int ret = -EINVAL;
618
619 /* Sanity check for name and max */
620 if (unlikely(!name || max <= 0))
621 return -EINVAL;
622
Kuninori Morimoto0881ab62019-10-02 14:23:14 +0900623 kctl = snd_soc_card_get_kcontrol(card, name);
624 if (kctl) {
Kuninori Morimoto872040f2021-08-03 14:00:49 +0900625 struct soc_mixer_control *mc = (struct soc_mixer_control *)kctl->private_value;
Mark Brown70771482014-10-28 22:15:31 +0000626 if (max <= mc->max) {
627 mc->platform_max = max;
628 ret = 0;
629 }
630 }
631 return ret;
632}
633EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
634
635int 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}
646EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
647
648int 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}
683EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
684
685int 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
761out:
762 kfree(data);
763
764 return ret;
765}
766EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
767
768int 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}
778EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext);
779
780int 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 Ka1e5e7e92015-11-09 23:20:00 +0530790 ret = params->get(kcontrol, tlv, count);
Mark Brown70771482014-10-28 22:15:31 +0000791 break;
792 case SNDRV_CTL_TLV_OP_WRITE:
793 if (params->put)
Mythri P Ka1e5e7e92015-11-09 23:20:00 +0530794 ret = params->put(kcontrol, tlv, count);
Mark Brown70771482014-10-28 22:15:31 +0000795 break;
796 }
797 return ret;
798}
799EXPORT_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 */
812int 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}
824EXPORT_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 */
839int 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;
이경택0ab07092020-03-30 16:35:59 +0900848 unsigned int regwmask = (1UL<<regwshift)-1;
Mark Brown70771482014-10-28 22:15:31 +0000849 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 Brown70771482014-10-28 22:15:31 +0000854 unsigned int i;
Mark Brown70771482014-10-28 22:15:31 +0000855
856 for (i = 0; i < regcount; i++) {
Kuninori Morimotob1ebecb92021-08-03 14:00:55 +0900857 unsigned int regval = snd_soc_component_read(component, regbase+i);
Mark Brown70771482014-10-28 22:15:31 +0000858 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}
869EXPORT_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 */
884int 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;
이경택0ab07092020-03-30 16:35:59 +0900893 unsigned int regwmask = (1UL<<regwshift)-1;
Mark Brown70771482014-10-28 22:15:31 +0000894 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 Brown2b7c46362022-02-01 15:56:29 +0000898 int ret = 0;
Kuninori Morimotob285b512021-08-03 14:01:00 +0900899 unsigned int i;
Mark Brown70771482014-10-28 22:15:31 +0000900
Mark Brown4cf28e92022-01-24 15:32:53 +0000901 if (val < mc->min || val > mc->max)
902 return -EINVAL;
Mark Brown70771482014-10-28 22:15:31 +0000903 if (invert)
904 val = max - val;
905 val &= mask;
906 for (i = 0; i < regcount; i++) {
Kuninori Morimotob285b512021-08-03 14:01:00 +0900907 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 Brown70771482014-10-28 22:15:31 +0000911 if (err < 0)
912 return err;
Mark Brown2b7c46362022-02-01 15:56:29 +0000913 if (err > 0)
914 ret = err;
Mark Brown70771482014-10-28 22:15:31 +0000915 }
916
Mark Brown2b7c46362022-02-01 15:56:29 +0000917 return ret;
Mark Brown70771482014-10-28 22:15:31 +0000918}
919EXPORT_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 */
930int 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 Brown70771482014-10-28 22:15:31 +0000941
Kuninori Morimotocf6e26c2020-06-16 14:19:41 +0900942 val = snd_soc_component_read(component, reg);
Mark Brown70771482014-10-28 22:15:31 +0000943 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}
951EXPORT_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 */
963int 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}
984EXPORT_SYMBOL_GPL(snd_soc_put_strobe);