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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> | |
7077148f MB |
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; | |
66 | int ret; | |
67 | ||
68 | ret = snd_soc_component_read(component, e->reg, ®_val); | |
69 | if (ret) | |
70 | return ret; | |
71 | val = (reg_val >> e->shift_l) & e->mask; | |
72 | item = snd_soc_enum_val_to_item(e, val); | |
73 | ucontrol->value.enumerated.item[0] = item; | |
74 | if (e->shift_l != e->shift_r) { | |
189f06c0 | 75 | val = (reg_val >> e->shift_r) & e->mask; |
7077148f MB |
76 | item = snd_soc_enum_val_to_item(e, val); |
77 | ucontrol->value.enumerated.item[1] = item; | |
78 | } | |
79 | ||
80 | return 0; | |
81 | } | |
82 | EXPORT_SYMBOL_GPL(snd_soc_get_enum_double); | |
83 | ||
84 | /** | |
85 | * snd_soc_put_enum_double - enumerated double mixer put callback | |
86 | * @kcontrol: mixer control | |
87 | * @ucontrol: control element information | |
88 | * | |
89 | * Callback to set the value of a double enumerated mixer. | |
90 | * | |
91 | * Returns 0 for success. | |
92 | */ | |
93 | int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, | |
94 | struct snd_ctl_elem_value *ucontrol) | |
95 | { | |
96 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
97 | struct soc_enum *e = (struct soc_enum *)kcontrol->private_value; | |
98 | unsigned int *item = ucontrol->value.enumerated.item; | |
99 | unsigned int val; | |
100 | unsigned int mask; | |
101 | ||
102 | if (item[0] >= e->items) | |
103 | return -EINVAL; | |
104 | val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l; | |
105 | mask = e->mask << e->shift_l; | |
106 | if (e->shift_l != e->shift_r) { | |
107 | if (item[1] >= e->items) | |
108 | return -EINVAL; | |
109 | val |= snd_soc_enum_item_to_val(e, item[1]) << e->shift_r; | |
110 | mask |= e->mask << e->shift_r; | |
111 | } | |
112 | ||
113 | return snd_soc_component_update_bits(component, e->reg, mask, val); | |
114 | } | |
115 | EXPORT_SYMBOL_GPL(snd_soc_put_enum_double); | |
116 | ||
117 | /** | |
8abab35f | 118 | * snd_soc_read_signed - Read a codec register and interpret as signed value |
7077148f MB |
119 | * @component: component |
120 | * @reg: Register to read | |
121 | * @mask: Mask to use after shifting the register value | |
122 | * @shift: Right shift of register value | |
123 | * @sign_bit: Bit that describes if a number is negative or not. | |
124 | * @signed_val: Pointer to where the read value should be stored | |
125 | * | |
126 | * This functions reads a codec register. The register value is shifted right | |
127 | * by 'shift' bits and masked with the given 'mask'. Afterwards it translates | |
128 | * the given registervalue into a signed integer if sign_bit is non-zero. | |
129 | * | |
130 | * Returns 0 on sucess, otherwise an error value | |
131 | */ | |
132 | static int snd_soc_read_signed(struct snd_soc_component *component, | |
133 | unsigned int reg, unsigned int mask, unsigned int shift, | |
134 | unsigned int sign_bit, int *signed_val) | |
135 | { | |
136 | int ret; | |
137 | unsigned int val; | |
138 | ||
139 | ret = snd_soc_component_read(component, reg, &val); | |
140 | if (ret < 0) | |
141 | return ret; | |
142 | ||
143 | val = (val >> shift) & mask; | |
144 | ||
145 | if (!sign_bit) { | |
146 | *signed_val = val; | |
147 | return 0; | |
148 | } | |
149 | ||
150 | /* non-negative number */ | |
151 | if (!(val & BIT(sign_bit))) { | |
152 | *signed_val = val; | |
153 | return 0; | |
154 | } | |
155 | ||
156 | ret = val; | |
157 | ||
158 | /* | |
159 | * The register most probably does not contain a full-sized int. | |
160 | * Instead we have an arbitrary number of bits in a signed | |
161 | * representation which has to be translated into a full-sized int. | |
162 | * This is done by filling up all bits above the sign-bit. | |
163 | */ | |
164 | ret |= ~((int)(BIT(sign_bit) - 1)); | |
165 | ||
166 | *signed_val = ret; | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
171 | /** | |
172 | * snd_soc_info_volsw - single mixer info callback | |
173 | * @kcontrol: mixer control | |
174 | * @uinfo: control element information | |
175 | * | |
176 | * Callback to provide information about a single mixer control, or a double | |
177 | * mixer control that spans 2 registers. | |
178 | * | |
179 | * Returns 0 for success. | |
180 | */ | |
181 | int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, | |
182 | struct snd_ctl_elem_info *uinfo) | |
183 | { | |
184 | struct soc_mixer_control *mc = | |
185 | (struct soc_mixer_control *)kcontrol->private_value; | |
186 | int platform_max; | |
187 | ||
188 | if (!mc->platform_max) | |
189 | mc->platform_max = mc->max; | |
190 | platform_max = mc->platform_max; | |
191 | ||
192 | if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume")) | |
193 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; | |
194 | else | |
195 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
196 | ||
197 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; | |
198 | uinfo->value.integer.min = 0; | |
199 | uinfo->value.integer.max = platform_max - mc->min; | |
200 | return 0; | |
201 | } | |
202 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw); | |
203 | ||
34198710 CK |
204 | /** |
205 | * snd_soc_info_volsw_sx - Mixer info callback for SX TLV controls | |
206 | * @kcontrol: mixer control | |
207 | * @uinfo: control element information | |
208 | * | |
209 | * Callback to provide information about a single mixer control, or a double | |
210 | * mixer control that spans 2 registers of the SX TLV type. SX TLV controls | |
211 | * have a range that represents both positive and negative values either side | |
212 | * of zero but without a sign bit. | |
213 | * | |
214 | * Returns 0 for success. | |
215 | */ | |
216 | int snd_soc_info_volsw_sx(struct snd_kcontrol *kcontrol, | |
217 | struct snd_ctl_elem_info *uinfo) | |
218 | { | |
219 | struct soc_mixer_control *mc = | |
220 | (struct soc_mixer_control *)kcontrol->private_value; | |
221 | ||
222 | snd_soc_info_volsw(kcontrol, uinfo); | |
223 | /* Max represents the number of levels in an SX control not the | |
224 | * maximum value, so add the minimum value back on | |
225 | */ | |
226 | uinfo->value.integer.max += mc->min; | |
227 | ||
228 | return 0; | |
229 | } | |
230 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_sx); | |
231 | ||
7077148f MB |
232 | /** |
233 | * snd_soc_get_volsw - single mixer get callback | |
234 | * @kcontrol: mixer control | |
235 | * @ucontrol: control element information | |
236 | * | |
237 | * Callback to get the value of a single mixer control, or a double mixer | |
238 | * control that spans 2 registers. | |
239 | * | |
240 | * Returns 0 for success. | |
241 | */ | |
242 | int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, | |
243 | struct snd_ctl_elem_value *ucontrol) | |
244 | { | |
245 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
246 | struct soc_mixer_control *mc = | |
247 | (struct soc_mixer_control *)kcontrol->private_value; | |
248 | unsigned int reg = mc->reg; | |
249 | unsigned int reg2 = mc->rreg; | |
250 | unsigned int shift = mc->shift; | |
251 | unsigned int rshift = mc->rshift; | |
252 | int max = mc->max; | |
253 | int min = mc->min; | |
254 | int sign_bit = mc->sign_bit; | |
255 | unsigned int mask = (1 << fls(max)) - 1; | |
256 | unsigned int invert = mc->invert; | |
257 | int val; | |
258 | int ret; | |
259 | ||
260 | if (sign_bit) | |
261 | mask = BIT(sign_bit + 1) - 1; | |
262 | ||
263 | ret = snd_soc_read_signed(component, reg, mask, shift, sign_bit, &val); | |
264 | if (ret) | |
265 | return ret; | |
266 | ||
267 | ucontrol->value.integer.value[0] = val - min; | |
268 | if (invert) | |
269 | ucontrol->value.integer.value[0] = | |
270 | max - ucontrol->value.integer.value[0]; | |
271 | ||
272 | if (snd_soc_volsw_is_stereo(mc)) { | |
273 | if (reg == reg2) | |
274 | ret = snd_soc_read_signed(component, reg, mask, rshift, | |
275 | sign_bit, &val); | |
276 | else | |
277 | ret = snd_soc_read_signed(component, reg2, mask, shift, | |
278 | sign_bit, &val); | |
279 | if (ret) | |
280 | return ret; | |
281 | ||
282 | ucontrol->value.integer.value[1] = val - min; | |
283 | if (invert) | |
284 | ucontrol->value.integer.value[1] = | |
285 | max - ucontrol->value.integer.value[1]; | |
286 | } | |
287 | ||
288 | return 0; | |
289 | } | |
290 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw); | |
291 | ||
292 | /** | |
293 | * snd_soc_put_volsw - single mixer put callback | |
294 | * @kcontrol: mixer control | |
295 | * @ucontrol: control element information | |
296 | * | |
297 | * Callback to set the value of a single mixer control, or a double mixer | |
298 | * control that spans 2 registers. | |
299 | * | |
300 | * Returns 0 for success. | |
301 | */ | |
302 | int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, | |
303 | struct snd_ctl_elem_value *ucontrol) | |
304 | { | |
305 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
306 | struct soc_mixer_control *mc = | |
307 | (struct soc_mixer_control *)kcontrol->private_value; | |
308 | unsigned int reg = mc->reg; | |
309 | unsigned int reg2 = mc->rreg; | |
310 | unsigned int shift = mc->shift; | |
311 | unsigned int rshift = mc->rshift; | |
312 | int max = mc->max; | |
313 | int min = mc->min; | |
314 | unsigned int sign_bit = mc->sign_bit; | |
315 | unsigned int mask = (1 << fls(max)) - 1; | |
316 | unsigned int invert = mc->invert; | |
317 | int err; | |
318 | bool type_2r = false; | |
319 | unsigned int val2 = 0; | |
320 | unsigned int val, val_mask; | |
321 | ||
322 | if (sign_bit) | |
323 | mask = BIT(sign_bit + 1) - 1; | |
324 | ||
325 | val = ((ucontrol->value.integer.value[0] + min) & mask); | |
326 | if (invert) | |
327 | val = max - val; | |
328 | val_mask = mask << shift; | |
329 | val = val << shift; | |
330 | if (snd_soc_volsw_is_stereo(mc)) { | |
331 | val2 = ((ucontrol->value.integer.value[1] + min) & mask); | |
332 | if (invert) | |
333 | val2 = max - val2; | |
334 | if (reg == reg2) { | |
335 | val_mask |= mask << rshift; | |
336 | val |= val2 << rshift; | |
337 | } else { | |
338 | val2 = val2 << shift; | |
339 | type_2r = true; | |
340 | } | |
341 | } | |
342 | err = snd_soc_component_update_bits(component, reg, val_mask, val); | |
343 | if (err < 0) | |
344 | return err; | |
345 | ||
346 | if (type_2r) | |
347 | err = snd_soc_component_update_bits(component, reg2, val_mask, | |
348 | val2); | |
349 | ||
350 | return err; | |
351 | } | |
352 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
353 | ||
354 | /** | |
355 | * snd_soc_get_volsw_sx - single mixer get callback | |
356 | * @kcontrol: mixer control | |
357 | * @ucontrol: control element information | |
358 | * | |
359 | * Callback to get the value of a single mixer control, or a double mixer | |
360 | * control that spans 2 registers. | |
361 | * | |
362 | * Returns 0 for success. | |
363 | */ | |
364 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, | |
365 | struct snd_ctl_elem_value *ucontrol) | |
366 | { | |
367 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
368 | struct soc_mixer_control *mc = | |
369 | (struct soc_mixer_control *)kcontrol->private_value; | |
370 | unsigned int reg = mc->reg; | |
371 | unsigned int reg2 = mc->rreg; | |
372 | unsigned int shift = mc->shift; | |
373 | unsigned int rshift = mc->rshift; | |
374 | int max = mc->max; | |
375 | int min = mc->min; | |
ae7d1247 | 376 | unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
7077148f MB |
377 | unsigned int val; |
378 | int ret; | |
379 | ||
380 | ret = snd_soc_component_read(component, reg, &val); | |
381 | if (ret < 0) | |
382 | return ret; | |
383 | ||
384 | ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask; | |
385 | ||
386 | if (snd_soc_volsw_is_stereo(mc)) { | |
387 | ret = snd_soc_component_read(component, reg2, &val); | |
388 | if (ret < 0) | |
389 | return ret; | |
390 | ||
391 | val = ((val >> rshift) - min) & mask; | |
392 | ucontrol->value.integer.value[1] = val; | |
393 | } | |
394 | ||
395 | return 0; | |
396 | } | |
397 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); | |
398 | ||
399 | /** | |
400 | * snd_soc_put_volsw_sx - double mixer set callback | |
401 | * @kcontrol: mixer control | |
9a11ef7f | 402 | * @ucontrol: control element information |
7077148f MB |
403 | * |
404 | * Callback to set the value of a double mixer control that spans 2 registers. | |
405 | * | |
406 | * Returns 0 for success. | |
407 | */ | |
408 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, | |
409 | struct snd_ctl_elem_value *ucontrol) | |
410 | { | |
411 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
412 | struct soc_mixer_control *mc = | |
413 | (struct soc_mixer_control *)kcontrol->private_value; | |
414 | ||
415 | unsigned int reg = mc->reg; | |
416 | unsigned int reg2 = mc->rreg; | |
417 | unsigned int shift = mc->shift; | |
418 | unsigned int rshift = mc->rshift; | |
419 | int max = mc->max; | |
420 | int min = mc->min; | |
ae7d1247 | 421 | unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
7077148f MB |
422 | int err = 0; |
423 | unsigned int val, val_mask, val2 = 0; | |
424 | ||
425 | val_mask = mask << shift; | |
426 | val = (ucontrol->value.integer.value[0] + min) & mask; | |
427 | val = val << shift; | |
428 | ||
429 | err = snd_soc_component_update_bits(component, reg, val_mask, val); | |
430 | if (err < 0) | |
431 | return err; | |
432 | ||
433 | if (snd_soc_volsw_is_stereo(mc)) { | |
434 | val_mask = mask << rshift; | |
435 | val2 = (ucontrol->value.integer.value[1] + min) & mask; | |
436 | val2 = val2 << rshift; | |
437 | ||
438 | err = snd_soc_component_update_bits(component, reg2, val_mask, | |
439 | val2); | |
440 | } | |
441 | return err; | |
442 | } | |
443 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); | |
444 | ||
445 | /** | |
446 | * snd_soc_info_volsw_range - single mixer info callback with range. | |
447 | * @kcontrol: mixer control | |
448 | * @uinfo: control element information | |
449 | * | |
450 | * Callback to provide information, within a range, about a single | |
451 | * mixer control. | |
452 | * | |
453 | * returns 0 for success. | |
454 | */ | |
455 | int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, | |
456 | struct snd_ctl_elem_info *uinfo) | |
457 | { | |
458 | struct soc_mixer_control *mc = | |
459 | (struct soc_mixer_control *)kcontrol->private_value; | |
460 | int platform_max; | |
461 | int min = mc->min; | |
462 | ||
463 | if (!mc->platform_max) | |
464 | mc->platform_max = mc->max; | |
465 | platform_max = mc->platform_max; | |
466 | ||
467 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
468 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; | |
469 | uinfo->value.integer.min = 0; | |
470 | uinfo->value.integer.max = platform_max - min; | |
471 | ||
472 | return 0; | |
473 | } | |
474 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); | |
475 | ||
476 | /** | |
477 | * snd_soc_put_volsw_range - single mixer put value callback with range. | |
478 | * @kcontrol: mixer control | |
479 | * @ucontrol: control element information | |
480 | * | |
481 | * Callback to set the value, within a range, for a single mixer control. | |
482 | * | |
483 | * Returns 0 for success. | |
484 | */ | |
485 | int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, | |
486 | struct snd_ctl_elem_value *ucontrol) | |
487 | { | |
488 | struct soc_mixer_control *mc = | |
489 | (struct soc_mixer_control *)kcontrol->private_value; | |
490 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
491 | unsigned int reg = mc->reg; | |
492 | unsigned int rreg = mc->rreg; | |
493 | unsigned int shift = mc->shift; | |
494 | int min = mc->min; | |
495 | int max = mc->max; | |
496 | unsigned int mask = (1 << fls(max)) - 1; | |
497 | unsigned int invert = mc->invert; | |
498 | unsigned int val, val_mask; | |
499 | int ret; | |
500 | ||
501 | if (invert) | |
502 | val = (max - ucontrol->value.integer.value[0]) & mask; | |
503 | else | |
504 | val = ((ucontrol->value.integer.value[0] + min) & mask); | |
505 | val_mask = mask << shift; | |
506 | val = val << shift; | |
507 | ||
508 | ret = snd_soc_component_update_bits(component, reg, val_mask, val); | |
509 | if (ret < 0) | |
510 | return ret; | |
511 | ||
512 | if (snd_soc_volsw_is_stereo(mc)) { | |
513 | if (invert) | |
514 | val = (max - ucontrol->value.integer.value[1]) & mask; | |
515 | else | |
516 | val = ((ucontrol->value.integer.value[1] + min) & mask); | |
517 | val_mask = mask << shift; | |
518 | val = val << shift; | |
519 | ||
520 | ret = snd_soc_component_update_bits(component, rreg, val_mask, | |
521 | val); | |
522 | } | |
523 | ||
524 | return ret; | |
525 | } | |
526 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); | |
527 | ||
528 | /** | |
529 | * snd_soc_get_volsw_range - single mixer get callback with range | |
530 | * @kcontrol: mixer control | |
531 | * @ucontrol: control element information | |
532 | * | |
533 | * Callback to get the value, within a range, of a single mixer control. | |
534 | * | |
535 | * Returns 0 for success. | |
536 | */ | |
537 | int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, | |
538 | struct snd_ctl_elem_value *ucontrol) | |
539 | { | |
540 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
541 | struct soc_mixer_control *mc = | |
542 | (struct soc_mixer_control *)kcontrol->private_value; | |
543 | unsigned int reg = mc->reg; | |
544 | unsigned int rreg = mc->rreg; | |
545 | unsigned int shift = mc->shift; | |
546 | int min = mc->min; | |
547 | int max = mc->max; | |
548 | unsigned int mask = (1 << fls(max)) - 1; | |
549 | unsigned int invert = mc->invert; | |
550 | unsigned int val; | |
551 | int ret; | |
552 | ||
553 | ret = snd_soc_component_read(component, reg, &val); | |
554 | if (ret) | |
555 | return ret; | |
556 | ||
557 | ucontrol->value.integer.value[0] = (val >> shift) & mask; | |
558 | if (invert) | |
559 | ucontrol->value.integer.value[0] = | |
560 | max - ucontrol->value.integer.value[0]; | |
561 | else | |
562 | ucontrol->value.integer.value[0] = | |
563 | ucontrol->value.integer.value[0] - min; | |
564 | ||
565 | if (snd_soc_volsw_is_stereo(mc)) { | |
566 | ret = snd_soc_component_read(component, rreg, &val); | |
567 | if (ret) | |
568 | return ret; | |
569 | ||
570 | ucontrol->value.integer.value[1] = (val >> shift) & mask; | |
571 | if (invert) | |
572 | ucontrol->value.integer.value[1] = | |
573 | max - ucontrol->value.integer.value[1]; | |
574 | else | |
575 | ucontrol->value.integer.value[1] = | |
576 | ucontrol->value.integer.value[1] - min; | |
577 | } | |
578 | ||
579 | return 0; | |
580 | } | |
581 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); | |
582 | ||
583 | /** | |
584 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
585 | * | |
26d9ca34 | 586 | * @card: where to look for the control |
7077148f MB |
587 | * @name: Name of the control |
588 | * @max: new maximum limit | |
589 | * | |
590 | * Return 0 for success, else error. | |
591 | */ | |
26d9ca34 | 592 | int snd_soc_limit_volume(struct snd_soc_card *card, |
7077148f MB |
593 | const char *name, int max) |
594 | { | |
26d9ca34 | 595 | struct snd_card *snd_card = card->snd_card; |
7077148f MB |
596 | struct snd_kcontrol *kctl; |
597 | struct soc_mixer_control *mc; | |
598 | int found = 0; | |
599 | int ret = -EINVAL; | |
600 | ||
601 | /* Sanity check for name and max */ | |
602 | if (unlikely(!name || max <= 0)) | |
603 | return -EINVAL; | |
604 | ||
26d9ca34 | 605 | list_for_each_entry(kctl, &snd_card->controls, list) { |
7077148f MB |
606 | if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) { |
607 | found = 1; | |
608 | break; | |
609 | } | |
610 | } | |
611 | if (found) { | |
612 | mc = (struct soc_mixer_control *)kctl->private_value; | |
613 | if (max <= mc->max) { | |
614 | mc->platform_max = max; | |
615 | ret = 0; | |
616 | } | |
617 | } | |
618 | return ret; | |
619 | } | |
620 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
621 | ||
622 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, | |
623 | struct snd_ctl_elem_info *uinfo) | |
624 | { | |
625 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
626 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
627 | ||
628 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
629 | uinfo->count = params->num_regs * component->val_bytes; | |
630 | ||
631 | return 0; | |
632 | } | |
633 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
634 | ||
635 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
636 | struct snd_ctl_elem_value *ucontrol) | |
637 | { | |
638 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
639 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
640 | int ret; | |
641 | ||
642 | if (component->regmap) | |
643 | ret = regmap_raw_read(component->regmap, params->base, | |
644 | ucontrol->value.bytes.data, | |
645 | params->num_regs * component->val_bytes); | |
646 | else | |
647 | ret = -EINVAL; | |
648 | ||
649 | /* Hide any masked bytes to ensure consistent data reporting */ | |
650 | if (ret == 0 && params->mask) { | |
651 | switch (component->val_bytes) { | |
652 | case 1: | |
653 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
654 | break; | |
655 | case 2: | |
656 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
657 | &= cpu_to_be16(~params->mask); | |
658 | break; | |
659 | case 4: | |
660 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
661 | &= cpu_to_be32(~params->mask); | |
662 | break; | |
663 | default: | |
664 | return -EINVAL; | |
665 | } | |
666 | } | |
667 | ||
668 | return ret; | |
669 | } | |
670 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
671 | ||
672 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
673 | struct snd_ctl_elem_value *ucontrol) | |
674 | { | |
675 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
676 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
677 | int ret, len; | |
678 | unsigned int val, mask; | |
679 | void *data; | |
680 | ||
681 | if (!component->regmap || !params->num_regs) | |
682 | return -EINVAL; | |
683 | ||
684 | len = params->num_regs * component->val_bytes; | |
685 | ||
686 | data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA); | |
687 | if (!data) | |
688 | return -ENOMEM; | |
689 | ||
690 | /* | |
691 | * If we've got a mask then we need to preserve the register | |
692 | * bits. We shouldn't modify the incoming data so take a | |
693 | * copy. | |
694 | */ | |
695 | if (params->mask) { | |
696 | ret = regmap_read(component->regmap, params->base, &val); | |
697 | if (ret != 0) | |
698 | goto out; | |
699 | ||
700 | val &= params->mask; | |
701 | ||
702 | switch (component->val_bytes) { | |
703 | case 1: | |
704 | ((u8 *)data)[0] &= ~params->mask; | |
705 | ((u8 *)data)[0] |= val; | |
706 | break; | |
707 | case 2: | |
708 | mask = ~params->mask; | |
709 | ret = regmap_parse_val(component->regmap, | |
710 | &mask, &mask); | |
711 | if (ret != 0) | |
712 | goto out; | |
713 | ||
714 | ((u16 *)data)[0] &= mask; | |
715 | ||
716 | ret = regmap_parse_val(component->regmap, | |
717 | &val, &val); | |
718 | if (ret != 0) | |
719 | goto out; | |
720 | ||
721 | ((u16 *)data)[0] |= val; | |
722 | break; | |
723 | case 4: | |
724 | mask = ~params->mask; | |
725 | ret = regmap_parse_val(component->regmap, | |
726 | &mask, &mask); | |
727 | if (ret != 0) | |
728 | goto out; | |
729 | ||
730 | ((u32 *)data)[0] &= mask; | |
731 | ||
732 | ret = regmap_parse_val(component->regmap, | |
733 | &val, &val); | |
734 | if (ret != 0) | |
735 | goto out; | |
736 | ||
737 | ((u32 *)data)[0] |= val; | |
738 | break; | |
739 | default: | |
740 | ret = -EINVAL; | |
741 | goto out; | |
742 | } | |
743 | } | |
744 | ||
745 | ret = regmap_raw_write(component->regmap, params->base, | |
746 | data, len); | |
747 | ||
748 | out: | |
749 | kfree(data); | |
750 | ||
751 | return ret; | |
752 | } | |
753 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
754 | ||
755 | int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, | |
756 | struct snd_ctl_elem_info *ucontrol) | |
757 | { | |
758 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; | |
759 | ||
760 | ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
761 | ucontrol->count = params->max; | |
762 | ||
763 | return 0; | |
764 | } | |
765 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext); | |
766 | ||
767 | int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, | |
768 | unsigned int size, unsigned int __user *tlv) | |
769 | { | |
770 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; | |
771 | unsigned int count = size < params->max ? size : params->max; | |
772 | int ret = -ENXIO; | |
773 | ||
774 | switch (op_flag) { | |
775 | case SNDRV_CTL_TLV_OP_READ: | |
776 | if (params->get) | |
a1e5e7e9 | 777 | ret = params->get(kcontrol, tlv, count); |
7077148f MB |
778 | break; |
779 | case SNDRV_CTL_TLV_OP_WRITE: | |
780 | if (params->put) | |
a1e5e7e9 | 781 | ret = params->put(kcontrol, tlv, count); |
7077148f MB |
782 | break; |
783 | } | |
784 | return ret; | |
785 | } | |
786 | EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback); | |
787 | ||
788 | /** | |
789 | * snd_soc_info_xr_sx - signed multi register info callback | |
790 | * @kcontrol: mreg control | |
791 | * @uinfo: control element information | |
792 | * | |
793 | * Callback to provide information of a control that can | |
794 | * span multiple codec registers which together | |
795 | * forms a single signed value in a MSB/LSB manner. | |
796 | * | |
797 | * Returns 0 for success. | |
798 | */ | |
799 | int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, | |
800 | struct snd_ctl_elem_info *uinfo) | |
801 | { | |
802 | struct soc_mreg_control *mc = | |
803 | (struct soc_mreg_control *)kcontrol->private_value; | |
804 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
805 | uinfo->count = 1; | |
806 | uinfo->value.integer.min = mc->min; | |
807 | uinfo->value.integer.max = mc->max; | |
808 | ||
809 | return 0; | |
810 | } | |
811 | EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); | |
812 | ||
813 | /** | |
814 | * snd_soc_get_xr_sx - signed multi register get callback | |
815 | * @kcontrol: mreg control | |
816 | * @ucontrol: control element information | |
817 | * | |
818 | * Callback to get the value of a control that can span | |
819 | * multiple codec registers which together forms a single | |
820 | * signed value in a MSB/LSB manner. The control supports | |
821 | * specifying total no of bits used to allow for bitfields | |
822 | * across the multiple codec registers. | |
823 | * | |
824 | * Returns 0 for success. | |
825 | */ | |
826 | int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, | |
827 | struct snd_ctl_elem_value *ucontrol) | |
828 | { | |
829 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
830 | struct soc_mreg_control *mc = | |
831 | (struct soc_mreg_control *)kcontrol->private_value; | |
832 | unsigned int regbase = mc->regbase; | |
833 | unsigned int regcount = mc->regcount; | |
834 | unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; | |
835 | unsigned int regwmask = (1<<regwshift)-1; | |
836 | unsigned int invert = mc->invert; | |
837 | unsigned long mask = (1UL<<mc->nbits)-1; | |
838 | long min = mc->min; | |
839 | long max = mc->max; | |
840 | long val = 0; | |
841 | unsigned int regval; | |
842 | unsigned int i; | |
843 | int ret; | |
844 | ||
845 | for (i = 0; i < regcount; i++) { | |
846 | ret = snd_soc_component_read(component, regbase+i, ®val); | |
847 | if (ret) | |
848 | return ret; | |
849 | val |= (regval & regwmask) << (regwshift*(regcount-i-1)); | |
850 | } | |
851 | val &= mask; | |
852 | if (min < 0 && val > max) | |
853 | val |= ~mask; | |
854 | if (invert) | |
855 | val = max - val; | |
856 | ucontrol->value.integer.value[0] = val; | |
857 | ||
858 | return 0; | |
859 | } | |
860 | EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); | |
861 | ||
862 | /** | |
863 | * snd_soc_put_xr_sx - signed multi register get callback | |
864 | * @kcontrol: mreg control | |
865 | * @ucontrol: control element information | |
866 | * | |
867 | * Callback to set the value of a control that can span | |
868 | * multiple codec registers which together forms a single | |
869 | * signed value in a MSB/LSB manner. The control supports | |
870 | * specifying total no of bits used to allow for bitfields | |
871 | * across the multiple codec registers. | |
872 | * | |
873 | * Returns 0 for success. | |
874 | */ | |
875 | int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, | |
876 | struct snd_ctl_elem_value *ucontrol) | |
877 | { | |
878 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
879 | struct soc_mreg_control *mc = | |
880 | (struct soc_mreg_control *)kcontrol->private_value; | |
881 | unsigned int regbase = mc->regbase; | |
882 | unsigned int regcount = mc->regcount; | |
883 | unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; | |
884 | unsigned int regwmask = (1<<regwshift)-1; | |
885 | unsigned int invert = mc->invert; | |
886 | unsigned long mask = (1UL<<mc->nbits)-1; | |
887 | long max = mc->max; | |
888 | long val = ucontrol->value.integer.value[0]; | |
889 | unsigned int i, regval, regmask; | |
890 | int err; | |
891 | ||
892 | if (invert) | |
893 | val = max - val; | |
894 | val &= mask; | |
895 | for (i = 0; i < regcount; i++) { | |
896 | regval = (val >> (regwshift*(regcount-i-1))) & regwmask; | |
897 | regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; | |
898 | err = snd_soc_component_update_bits(component, regbase+i, | |
899 | regmask, regval); | |
900 | if (err < 0) | |
901 | return err; | |
902 | } | |
903 | ||
904 | return 0; | |
905 | } | |
906 | EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); | |
907 | ||
908 | /** | |
909 | * snd_soc_get_strobe - strobe get callback | |
910 | * @kcontrol: mixer control | |
911 | * @ucontrol: control element information | |
912 | * | |
913 | * Callback get the value of a strobe mixer control. | |
914 | * | |
915 | * Returns 0 for success. | |
916 | */ | |
917 | int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, | |
918 | struct snd_ctl_elem_value *ucontrol) | |
919 | { | |
920 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
921 | struct soc_mixer_control *mc = | |
922 | (struct soc_mixer_control *)kcontrol->private_value; | |
923 | unsigned int reg = mc->reg; | |
924 | unsigned int shift = mc->shift; | |
925 | unsigned int mask = 1 << shift; | |
926 | unsigned int invert = mc->invert != 0; | |
927 | unsigned int val; | |
928 | int ret; | |
929 | ||
930 | ret = snd_soc_component_read(component, reg, &val); | |
931 | if (ret) | |
932 | return ret; | |
933 | ||
934 | val &= mask; | |
935 | ||
936 | if (shift != 0 && val != 0) | |
937 | val = val >> shift; | |
938 | ucontrol->value.enumerated.item[0] = val ^ invert; | |
939 | ||
940 | return 0; | |
941 | } | |
942 | EXPORT_SYMBOL_GPL(snd_soc_get_strobe); | |
943 | ||
944 | /** | |
945 | * snd_soc_put_strobe - strobe put callback | |
946 | * @kcontrol: mixer control | |
947 | * @ucontrol: control element information | |
948 | * | |
949 | * Callback strobe a register bit to high then low (or the inverse) | |
950 | * in one pass of a single mixer enum control. | |
951 | * | |
952 | * Returns 1 for success. | |
953 | */ | |
954 | int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, | |
955 | struct snd_ctl_elem_value *ucontrol) | |
956 | { | |
957 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
958 | struct soc_mixer_control *mc = | |
959 | (struct soc_mixer_control *)kcontrol->private_value; | |
960 | unsigned int reg = mc->reg; | |
961 | unsigned int shift = mc->shift; | |
962 | unsigned int mask = 1 << shift; | |
963 | unsigned int invert = mc->invert != 0; | |
964 | unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; | |
965 | unsigned int val1 = (strobe ^ invert) ? mask : 0; | |
966 | unsigned int val2 = (strobe ^ invert) ? 0 : mask; | |
967 | int err; | |
968 | ||
969 | err = snd_soc_component_update_bits(component, reg, mask, val1); | |
970 | if (err < 0) | |
971 | return err; | |
972 | ||
973 | return snd_soc_component_update_bits(component, reg, mask, val2); | |
974 | } | |
975 | EXPORT_SYMBOL_GPL(snd_soc_put_strobe); |