2 * soc-ops.c -- Generic ASoC operations
4 * Copyright 2005 Wolfson Microelectronics PLC.
5 * Copyright 2005 Openedhand Ltd.
6 * Copyright (C) 2010 Slimlogic Ltd.
7 * Copyright (C) 2010 Texas Instruments Inc.
9 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
10 * with code, comments and ideas from :-
11 * Richard Purdie <richard@openedhand.com>
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
19 #include <linux/module.h>
20 #include <linux/moduleparam.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
24 #include <linux/bitops.h>
25 #include <linux/ctype.h>
26 #include <linux/slab.h>
27 #include <sound/core.h>
28 #include <sound/jack.h>
29 #include <sound/pcm.h>
30 #include <sound/pcm_params.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dpcm.h>
33 #include <sound/initval.h>
36 * snd_soc_info_enum_double - enumerated double mixer info callback
37 * @kcontrol: mixer control
38 * @uinfo: control element information
40 * Callback to provide information about a double enumerated
43 * Returns 0 for success.
45 int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
46 struct snd_ctl_elem_info *uinfo)
48 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
50 return snd_ctl_enum_info(uinfo, e->shift_l == e->shift_r ? 1 : 2,
53 EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
56 * snd_soc_get_enum_double - enumerated double mixer get callback
57 * @kcontrol: mixer control
58 * @ucontrol: control element information
60 * Callback to get the value of a double enumerated mixer.
62 * Returns 0 for success.
64 int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
65 struct snd_ctl_elem_value *ucontrol)
67 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
68 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
69 unsigned int val, item;
73 ret = snd_soc_component_read(component, e->reg, ®_val);
76 val = (reg_val >> e->shift_l) & e->mask;
77 item = snd_soc_enum_val_to_item(e, val);
78 ucontrol->value.enumerated.item[0] = item;
79 if (e->shift_l != e->shift_r) {
80 val = (reg_val >> e->shift_l) & e->mask;
81 item = snd_soc_enum_val_to_item(e, val);
82 ucontrol->value.enumerated.item[1] = item;
87 EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
90 * snd_soc_put_enum_double - enumerated double mixer put callback
91 * @kcontrol: mixer control
92 * @ucontrol: control element information
94 * Callback to set the value of a double enumerated mixer.
96 * Returns 0 for success.
98 int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
99 struct snd_ctl_elem_value *ucontrol)
101 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
102 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
103 unsigned int *item = ucontrol->value.enumerated.item;
107 if (item[0] >= e->items)
109 val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
110 mask = e->mask << e->shift_l;
111 if (e->shift_l != e->shift_r) {
112 if (item[1] >= e->items)
114 val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r;
115 mask |= e->mask << e->shift_r;
118 return snd_soc_component_update_bits(component, e->reg, mask, val);
120 EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
123 * snd_soc_read_signed - Read a codec register and interprete as signed value
124 * @component: component
125 * @reg: Register to read
126 * @mask: Mask to use after shifting the register value
127 * @shift: Right shift of register value
128 * @sign_bit: Bit that describes if a number is negative or not.
129 * @signed_val: Pointer to where the read value should be stored
131 * This functions reads a codec register. The register value is shifted right
132 * by 'shift' bits and masked with the given 'mask'. Afterwards it translates
133 * the given registervalue into a signed integer if sign_bit is non-zero.
135 * Returns 0 on sucess, otherwise an error value
137 static int snd_soc_read_signed(struct snd_soc_component *component,
138 unsigned int reg, unsigned int mask, unsigned int shift,
139 unsigned int sign_bit, int *signed_val)
144 ret = snd_soc_component_read(component, reg, &val);
148 val = (val >> shift) & mask;
155 /* non-negative number */
156 if (!(val & BIT(sign_bit))) {
164 * The register most probably does not contain a full-sized int.
165 * Instead we have an arbitrary number of bits in a signed
166 * representation which has to be translated into a full-sized int.
167 * This is done by filling up all bits above the sign-bit.
169 ret |= ~((int)(BIT(sign_bit) - 1));
177 * snd_soc_info_volsw - single mixer info callback
178 * @kcontrol: mixer control
179 * @uinfo: control element information
181 * Callback to provide information about a single mixer control, or a double
182 * mixer control that spans 2 registers.
184 * Returns 0 for success.
186 int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
187 struct snd_ctl_elem_info *uinfo)
189 struct soc_mixer_control *mc =
190 (struct soc_mixer_control *)kcontrol->private_value;
193 if (!mc->platform_max)
194 mc->platform_max = mc->max;
195 platform_max = mc->platform_max;
197 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
198 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
200 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
202 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
203 uinfo->value.integer.min = 0;
204 if (uinfo->type == SNDRV_CTL_ELEM_TYPE_INTEGER)
205 uinfo->value.integer.max = platform_max - mc->min;
207 uinfo->value.integer.max = platform_max;
210 EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
213 * snd_soc_info_volsw_sx - Mixer info callback for SX TLV controls
214 * @kcontrol: mixer control
215 * @uinfo: control element information
217 * Callback to provide information about a single mixer control, or a double
218 * mixer control that spans 2 registers of the SX TLV type. SX TLV controls
219 * have a range that represents both positive and negative values either side
220 * of zero but without a sign bit.
222 * Returns 0 for success.
224 int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol,
225 struct snd_ctl_elem_info *uinfo)
227 snd_soc_info_volsw(kcontrol, uinfo);
228 /* Max represents the number of levels in an SX control not the
230 * uinfo->value.integer.max is set to number of levels
231 * in snd_soc_info_volsw_sx. No further adjustment is necessary.
236 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx);
239 * snd_soc_get_volsw - single mixer get callback
240 * @kcontrol: mixer control
241 * @ucontrol: control element information
243 * Callback to get the value of a single mixer control, or a double mixer
244 * control that spans 2 registers.
246 * Returns 0 for success.
248 int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
249 struct snd_ctl_elem_value *ucontrol)
251 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
252 struct soc_mixer_control *mc =
253 (struct soc_mixer_control *)kcontrol->private_value;
254 unsigned int reg = mc->reg;
255 unsigned int reg2 = mc->rreg;
256 unsigned int shift = mc->shift;
257 unsigned int rshift = mc->rshift;
260 int sign_bit = mc->sign_bit;
261 unsigned int mask = (1 << fls(max)) - 1;
262 unsigned int invert = mc->invert;
267 mask = BIT(sign_bit + 1) - 1;
269 ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val);
273 ucontrol->value.integer.value[0] = val - min;
275 ucontrol->value.integer.value[0] =
276 max - ucontrol->value.integer.value[0];
278 if (snd_soc_volsw_is_stereo(mc)) {
280 ret = snd_soc_read_signed(component, reg, mask, rshift,
283 ret = snd_soc_read_signed(component, reg2, mask, shift,
288 ucontrol->value.integer.value[1] = val - min;
290 ucontrol->value.integer.value[1] =
291 max - ucontrol->value.integer.value[1];
296 EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
299 * snd_soc_put_volsw - single mixer put callback
300 * @kcontrol: mixer control
301 * @ucontrol: control element information
303 * Callback to set the value of a single mixer control, or a double mixer
304 * control that spans 2 registers.
306 * Returns 0 for success.
308 int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
309 struct snd_ctl_elem_value *ucontrol)
311 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
312 struct soc_mixer_control *mc =
313 (struct soc_mixer_control *)kcontrol->private_value;
314 unsigned int reg = mc->reg;
315 unsigned int reg2 = mc->rreg;
316 unsigned int shift = mc->shift;
317 unsigned int rshift = mc->rshift;
320 unsigned int sign_bit = mc->sign_bit;
321 unsigned int mask = (1 << fls(max)) - 1;
322 unsigned int invert = mc->invert;
324 bool type_2r = false;
325 unsigned int val2 = 0;
326 unsigned int val, val_mask;
329 mask = BIT(sign_bit + 1) - 1;
331 val = ((ucontrol->value.integer.value[0] + min) & mask);
334 val_mask = mask << shift;
336 if (snd_soc_volsw_is_stereo(mc)) {
337 val2 = ((ucontrol->value.integer.value[1] + min) & mask);
341 val_mask |= mask << rshift;
342 val |= val2 << rshift;
344 val2 = val2 << shift;
348 err = snd_soc_component_update_bits(component, reg, val_mask, val);
353 err = snd_soc_component_update_bits(component, reg2, val_mask,
358 EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
361 * snd_soc_get_volsw_sx - single mixer get callback
362 * @kcontrol: mixer control
363 * @ucontrol: control element information
365 * Callback to get the value of a single mixer control, or a double mixer
366 * control that spans 2 registers.
368 * Returns 0 for success.
370 int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
371 struct snd_ctl_elem_value *ucontrol)
373 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
374 struct soc_mixer_control *mc =
375 (struct soc_mixer_control *)kcontrol->private_value;
376 unsigned int reg = mc->reg;
377 unsigned int reg2 = mc->rreg;
378 unsigned int shift = mc->shift;
379 unsigned int rshift = mc->rshift;
382 unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
386 ret = snd_soc_component_read(component, reg, &val);
390 ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask;
392 if (snd_soc_volsw_is_stereo(mc)) {
393 ret = snd_soc_component_read(component, reg2, &val);
397 val = ((val >> rshift) - min) & mask;
398 ucontrol->value.integer.value[1] = val;
403 EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
406 * snd_soc_put_volsw_sx - double mixer set callback
407 * @kcontrol: mixer control
408 * @ucontrol: control element information
410 * Callback to set the value of a double mixer control that spans 2 registers.
412 * Returns 0 for success.
414 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
415 struct snd_ctl_elem_value *ucontrol)
417 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
418 struct soc_mixer_control *mc =
419 (struct soc_mixer_control *)kcontrol->private_value;
421 unsigned int reg = mc->reg;
422 unsigned int reg2 = mc->rreg;
423 unsigned int shift = mc->shift;
424 unsigned int rshift = mc->rshift;
427 unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
429 unsigned int val, val_mask, val2 = 0;
431 val_mask = mask << shift;
432 val = (ucontrol->value.integer.value[0] + min) & mask;
435 err = snd_soc_component_update_bits(component, reg, val_mask, val);
439 if (snd_soc_volsw_is_stereo(mc)) {
440 val_mask = mask << rshift;
441 val2 = (ucontrol->value.integer.value[1] + min) & mask;
442 val2 = val2 << rshift;
444 err = snd_soc_component_update_bits(component, reg2, val_mask,
449 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
452 * snd_soc_info_volsw_range - single mixer info callback with range.
453 * @kcontrol: mixer control
454 * @uinfo: control element information
456 * Callback to provide information, within a range, about a single
459 * returns 0 for success.
461 int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
462 struct snd_ctl_elem_info *uinfo)
464 struct soc_mixer_control *mc =
465 (struct soc_mixer_control *)kcontrol->private_value;
469 if (!mc->platform_max)
470 mc->platform_max = mc->max;
471 platform_max = mc->platform_max;
473 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
474 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
475 uinfo->value.integer.min = 0;
476 uinfo->value.integer.max = platform_max - min;
480 EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
483 * snd_soc_put_volsw_range - single mixer put value callback with range.
484 * @kcontrol: mixer control
485 * @ucontrol: control element information
487 * Callback to set the value, within a range, for a single mixer control.
489 * Returns 0 for success.
491 int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
492 struct snd_ctl_elem_value *ucontrol)
494 struct soc_mixer_control *mc =
495 (struct soc_mixer_control *)kcontrol->private_value;
496 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
497 unsigned int reg = mc->reg;
498 unsigned int rreg = mc->rreg;
499 unsigned int shift = mc->shift;
502 unsigned int mask = (1 << fls(max)) - 1;
503 unsigned int invert = mc->invert;
504 unsigned int val, val_mask;
508 val = (max - ucontrol->value.integer.value[0]) & mask;
510 val = ((ucontrol->value.integer.value[0] + min) & mask);
511 val_mask = mask << shift;
514 ret = snd_soc_component_update_bits(component, reg, val_mask, val);
518 if (snd_soc_volsw_is_stereo(mc)) {
520 val = (max - ucontrol->value.integer.value[1]) & mask;
522 val = ((ucontrol->value.integer.value[1] + min) & mask);
523 val_mask = mask << shift;
526 ret = snd_soc_component_update_bits(component, rreg, val_mask,
532 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
535 * snd_soc_get_volsw_range - single mixer get callback with range
536 * @kcontrol: mixer control
537 * @ucontrol: control element information
539 * Callback to get the value, within a range, of a single mixer control.
541 * Returns 0 for success.
543 int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
544 struct snd_ctl_elem_value *ucontrol)
546 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
547 struct soc_mixer_control *mc =
548 (struct soc_mixer_control *)kcontrol->private_value;
549 unsigned int reg = mc->reg;
550 unsigned int rreg = mc->rreg;
551 unsigned int shift = mc->shift;
554 unsigned int mask = (1 << fls(max)) - 1;
555 unsigned int invert = mc->invert;
559 ret = snd_soc_component_read(component, reg, &val);
563 ucontrol->value.integer.value[0] = (val >> shift) & mask;
565 ucontrol->value.integer.value[0] =
566 max - ucontrol->value.integer.value[0];
568 ucontrol->value.integer.value[0] =
569 ucontrol->value.integer.value[0] - min;
571 if (snd_soc_volsw_is_stereo(mc)) {
572 ret = snd_soc_component_read(component, rreg, &val);
576 ucontrol->value.integer.value[1] = (val >> shift) & mask;
578 ucontrol->value.integer.value[1] =
579 max - ucontrol->value.integer.value[1];
581 ucontrol->value.integer.value[1] =
582 ucontrol->value.integer.value[1] - min;
587 EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
590 * snd_soc_limit_volume - Set new limit to an existing volume control.
592 * @card: where to look for the control
593 * @name: Name of the control
594 * @max: new maximum limit
596 * Return 0 for success, else error.
598 int snd_soc_limit_volume(struct snd_soc_card *card,
599 const char *name, int max)
601 struct snd_card *snd_card = card->snd_card;
602 struct snd_kcontrol *kctl;
603 struct soc_mixer_control *mc;
607 /* Sanity check for name and max */
608 if (unlikely(!name || max <= 0))
611 list_for_each_entry(kctl, &snd_card->controls, list) {
612 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
618 mc = (struct soc_mixer_control *)kctl->private_value;
619 if (max <= mc->max) {
620 mc->platform_max = max;
626 EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
628 int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
629 struct snd_ctl_elem_info *uinfo)
631 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
632 struct soc_bytes *params = (void *)kcontrol->private_value;
634 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
635 uinfo->count = params->num_regs * component->val_bytes;
639 EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
641 int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
642 struct snd_ctl_elem_value *ucontrol)
644 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
645 struct soc_bytes *params = (void *)kcontrol->private_value;
648 if (component->regmap)
649 ret = regmap_raw_read(component->regmap, params->base,
650 ucontrol->value.bytes.data,
651 params->num_regs * component->val_bytes);
655 /* Hide any masked bytes to ensure consistent data reporting */
656 if (ret == 0 && params->mask) {
657 switch (component->val_bytes) {
659 ucontrol->value.bytes.data[0] &= ~params->mask;
662 ((u16 *)(&ucontrol->value.bytes.data))[0]
663 &= cpu_to_be16(~params->mask);
666 ((u32 *)(&ucontrol->value.bytes.data))[0]
667 &= cpu_to_be32(~params->mask);
676 EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
678 int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
679 struct snd_ctl_elem_value *ucontrol)
681 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
682 struct soc_bytes *params = (void *)kcontrol->private_value;
684 unsigned int val, mask;
687 if (!component->regmap || !params->num_regs)
690 len = params->num_regs * component->val_bytes;
692 data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
697 * If we've got a mask then we need to preserve the register
698 * bits. We shouldn't modify the incoming data so take a
702 ret = regmap_read(component->regmap, params->base, &val);
708 switch (component->val_bytes) {
710 ((u8 *)data)[0] &= ~params->mask;
711 ((u8 *)data)[0] |= val;
714 mask = ~params->mask;
715 ret = regmap_parse_val(component->regmap,
720 ((u16 *)data)[0] &= mask;
722 ret = regmap_parse_val(component->regmap,
727 ((u16 *)data)[0] |= val;
730 mask = ~params->mask;
731 ret = regmap_parse_val(component->regmap,
736 ((u32 *)data)[0] &= mask;
738 ret = regmap_parse_val(component->regmap,
743 ((u32 *)data)[0] |= val;
751 ret = regmap_raw_write(component->regmap, params->base,
759 EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
761 int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol,
762 struct snd_ctl_elem_info *ucontrol)
764 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
766 ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES;
767 ucontrol->count = params->max;
771 EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext);
773 int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag,
774 unsigned int size, unsigned int __user *tlv)
776 struct soc_bytes_ext *params = (void *)kcontrol->private_value;
777 unsigned int count = size < params->max ? size : params->max;
781 case SNDRV_CTL_TLV_OP_READ:
783 ret = params->get(tlv, count);
785 case SNDRV_CTL_TLV_OP_WRITE:
787 ret = params->put(tlv, count);
792 EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback);
795 * snd_soc_info_xr_sx - signed multi register info callback
796 * @kcontrol: mreg control
797 * @uinfo: control element information
799 * Callback to provide information of a control that can
800 * span multiple codec registers which together
801 * forms a single signed value in a MSB/LSB manner.
803 * Returns 0 for success.
805 int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
806 struct snd_ctl_elem_info *uinfo)
808 struct soc_mreg_control *mc =
809 (struct soc_mreg_control *)kcontrol->private_value;
810 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
812 uinfo->value.integer.min = mc->min;
813 uinfo->value.integer.max = mc->max;
817 EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
820 * snd_soc_get_xr_sx - signed multi register get callback
821 * @kcontrol: mreg control
822 * @ucontrol: control element information
824 * Callback to get the value of a control that can span
825 * multiple codec registers which together forms a single
826 * signed value in a MSB/LSB manner. The control supports
827 * specifying total no of bits used to allow for bitfields
828 * across the multiple codec registers.
830 * Returns 0 for success.
832 int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
833 struct snd_ctl_elem_value *ucontrol)
835 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
836 struct soc_mreg_control *mc =
837 (struct soc_mreg_control *)kcontrol->private_value;
838 unsigned int regbase = mc->regbase;
839 unsigned int regcount = mc->regcount;
840 unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
841 unsigned int regwmask = (1<<regwshift)-1;
842 unsigned int invert = mc->invert;
843 unsigned long mask = (1UL<<mc->nbits)-1;
851 for (i = 0; i < regcount; i++) {
852 ret = snd_soc_component_read(component, regbase+i, ®val);
855 val |= (regval & regwmask) << (regwshift*(regcount-i-1));
858 if (min < 0 && val > max)
862 ucontrol->value.integer.value[0] = val;
866 EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
869 * snd_soc_put_xr_sx - signed multi register get callback
870 * @kcontrol: mreg control
871 * @ucontrol: control element information
873 * Callback to set the value of a control that can span
874 * multiple codec registers which together forms a single
875 * signed value in a MSB/LSB manner. The control supports
876 * specifying total no of bits used to allow for bitfields
877 * across the multiple codec registers.
879 * Returns 0 for success.
881 int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
882 struct snd_ctl_elem_value *ucontrol)
884 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
885 struct soc_mreg_control *mc =
886 (struct soc_mreg_control *)kcontrol->private_value;
887 unsigned int regbase = mc->regbase;
888 unsigned int regcount = mc->regcount;
889 unsigned int regwshift = component->val_bytes * BITS_PER_BYTE;
890 unsigned int regwmask = (1<<regwshift)-1;
891 unsigned int invert = mc->invert;
892 unsigned long mask = (1UL<<mc->nbits)-1;
894 long val = ucontrol->value.integer.value[0];
895 unsigned int i, regval, regmask;
901 for (i = 0; i < regcount; i++) {
902 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
903 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
904 err = snd_soc_component_update_bits(component, regbase+i,
912 EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
915 * snd_soc_get_strobe - strobe get callback
916 * @kcontrol: mixer control
917 * @ucontrol: control element information
919 * Callback get the value of a strobe mixer control.
921 * Returns 0 for success.
923 int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
924 struct snd_ctl_elem_value *ucontrol)
926 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
927 struct soc_mixer_control *mc =
928 (struct soc_mixer_control *)kcontrol->private_value;
929 unsigned int reg = mc->reg;
930 unsigned int shift = mc->shift;
931 unsigned int mask = 1 << shift;
932 unsigned int invert = mc->invert != 0;
936 ret = snd_soc_component_read(component, reg, &val);
942 if (shift != 0 && val != 0)
944 ucontrol->value.enumerated.item[0] = val ^ invert;
948 EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
951 * snd_soc_put_strobe - strobe put callback
952 * @kcontrol: mixer control
953 * @ucontrol: control element information
955 * Callback strobe a register bit to high then low (or the inverse)
956 * in one pass of a single mixer enum control.
958 * Returns 1 for success.
960 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
961 struct snd_ctl_elem_value *ucontrol)
963 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
964 struct soc_mixer_control *mc =
965 (struct soc_mixer_control *)kcontrol->private_value;
966 unsigned int reg = mc->reg;
967 unsigned int shift = mc->shift;
968 unsigned int mask = 1 << shift;
969 unsigned int invert = mc->invert != 0;
970 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
971 unsigned int val1 = (strobe ^ invert) ? mask : 0;
972 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
975 err = snd_soc_component_update_bits(component, reg, mask, val1);
979 return snd_soc_component_update_bits(component, reg, mask, val2);
981 EXPORT_SYMBOL_GPL(snd_soc_put_strobe);