Commit | Line | Data |
---|---|---|
4eef5a90 KM |
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; | |
7077148f | 66 | |
cf6e26c7 | 67 | reg_val = snd_soc_component_read(component, e->reg); |
7077148f MB |
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) { | |
189f06c0 | 72 | val = (reg_val >> e->shift_r) & e->mask; |
7077148f MB |
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 | /** | |
8abab35f | 115 | * snd_soc_read_signed - Read a codec register and interpret as signed value |
7077148f MB |
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 | ||
cf6e26c7 | 136 | val = snd_soc_component_read(component, reg); |
7077148f MB |
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 | ||
34198710 CK |
198 | /** |
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 | ||
7077148f MB |
226 | /** |
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; | |
311 | int err; | |
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 | ||
319 | val = ((ucontrol->value.integer.value[0] + min) & mask); | |
320 | if (invert) | |
321 | val = max - val; | |
322 | val_mask = mask << shift; | |
323 | val = val << shift; | |
324 | if (snd_soc_volsw_is_stereo(mc)) { | |
325 | val2 = ((ucontrol->value.integer.value[1] + min) & mask); | |
326 | if (invert) | |
327 | val2 = max - val2; | |
328 | if (reg == reg2) { | |
329 | val_mask |= mask << rshift; | |
330 | val |= val2 << rshift; | |
331 | } else { | |
332 | val2 = val2 << shift; | |
333 | type_2r = true; | |
334 | } | |
335 | } | |
336 | err = snd_soc_component_update_bits(component, reg, val_mask, val); | |
337 | if (err < 0) | |
338 | return err; | |
339 | ||
340 | if (type_2r) | |
341 | err = snd_soc_component_update_bits(component, reg2, val_mask, | |
342 | val2); | |
343 | ||
344 | return err; | |
345 | } | |
346 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw); | |
347 | ||
348 | /** | |
349 | * snd_soc_get_volsw_sx - single mixer get callback | |
350 | * @kcontrol: mixer control | |
351 | * @ucontrol: control element information | |
352 | * | |
353 | * Callback to get the value of a single mixer control, or a double mixer | |
354 | * control that spans 2 registers. | |
355 | * | |
356 | * Returns 0 for success. | |
357 | */ | |
358 | int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, | |
359 | struct snd_ctl_elem_value *ucontrol) | |
360 | { | |
361 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
362 | struct soc_mixer_control *mc = | |
363 | (struct soc_mixer_control *)kcontrol->private_value; | |
364 | unsigned int reg = mc->reg; | |
365 | unsigned int reg2 = mc->rreg; | |
366 | unsigned int shift = mc->shift; | |
367 | unsigned int rshift = mc->rshift; | |
368 | int max = mc->max; | |
369 | int min = mc->min; | |
ae7d1247 | 370 | unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
7077148f | 371 | unsigned int val; |
7077148f | 372 | |
cf6e26c7 | 373 | val = snd_soc_component_read(component, reg); |
7077148f MB |
374 | ucontrol->value.integer.value[0] = ((val >> shift) - min) & mask; |
375 | ||
376 | if (snd_soc_volsw_is_stereo(mc)) { | |
cf6e26c7 | 377 | val = snd_soc_component_read(component, reg2); |
7077148f MB |
378 | val = ((val >> rshift) - min) & mask; |
379 | ucontrol->value.integer.value[1] = val; | |
380 | } | |
381 | ||
382 | return 0; | |
383 | } | |
384 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx); | |
385 | ||
386 | /** | |
387 | * snd_soc_put_volsw_sx - double mixer set callback | |
388 | * @kcontrol: mixer control | |
9a11ef7f | 389 | * @ucontrol: control element information |
7077148f MB |
390 | * |
391 | * Callback to set the value of a double mixer control that spans 2 registers. | |
392 | * | |
393 | * Returns 0 for success. | |
394 | */ | |
395 | int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, | |
396 | struct snd_ctl_elem_value *ucontrol) | |
397 | { | |
398 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
399 | struct soc_mixer_control *mc = | |
400 | (struct soc_mixer_control *)kcontrol->private_value; | |
401 | ||
402 | unsigned int reg = mc->reg; | |
403 | unsigned int reg2 = mc->rreg; | |
404 | unsigned int shift = mc->shift; | |
405 | unsigned int rshift = mc->rshift; | |
406 | int max = mc->max; | |
407 | int min = mc->min; | |
ae7d1247 | 408 | unsigned int mask = (1U << (fls(min + max) - 1)) - 1; |
7077148f | 409 | int err = 0; |
7ca5f049 | 410 | unsigned int val, val_mask, val2; |
7077148f MB |
411 | |
412 | val_mask = mask << shift; | |
413 | val = (ucontrol->value.integer.value[0] + min) & mask; | |
414 | val = val << shift; | |
415 | ||
416 | err = snd_soc_component_update_bits(component, reg, val_mask, val); | |
417 | if (err < 0) | |
418 | return err; | |
419 | ||
420 | if (snd_soc_volsw_is_stereo(mc)) { | |
421 | val_mask = mask << rshift; | |
422 | val2 = (ucontrol->value.integer.value[1] + min) & mask; | |
423 | val2 = val2 << rshift; | |
424 | ||
425 | err = snd_soc_component_update_bits(component, reg2, val_mask, | |
426 | val2); | |
427 | } | |
428 | return err; | |
429 | } | |
430 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx); | |
431 | ||
432 | /** | |
433 | * snd_soc_info_volsw_range - single mixer info callback with range. | |
434 | * @kcontrol: mixer control | |
435 | * @uinfo: control element information | |
436 | * | |
437 | * Callback to provide information, within a range, about a single | |
438 | * mixer control. | |
439 | * | |
440 | * returns 0 for success. | |
441 | */ | |
442 | int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, | |
443 | struct snd_ctl_elem_info *uinfo) | |
444 | { | |
445 | struct soc_mixer_control *mc = | |
446 | (struct soc_mixer_control *)kcontrol->private_value; | |
447 | int platform_max; | |
448 | int min = mc->min; | |
449 | ||
450 | if (!mc->platform_max) | |
451 | mc->platform_max = mc->max; | |
452 | platform_max = mc->platform_max; | |
453 | ||
454 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
455 | uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1; | |
456 | uinfo->value.integer.min = 0; | |
457 | uinfo->value.integer.max = platform_max - min; | |
458 | ||
459 | return 0; | |
460 | } | |
461 | EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range); | |
462 | ||
463 | /** | |
464 | * snd_soc_put_volsw_range - single mixer put value callback with range. | |
465 | * @kcontrol: mixer control | |
466 | * @ucontrol: control element information | |
467 | * | |
468 | * Callback to set the value, within a range, for a single mixer control. | |
469 | * | |
470 | * Returns 0 for success. | |
471 | */ | |
472 | int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, | |
473 | struct snd_ctl_elem_value *ucontrol) | |
474 | { | |
475 | struct soc_mixer_control *mc = | |
476 | (struct soc_mixer_control *)kcontrol->private_value; | |
477 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
478 | unsigned int reg = mc->reg; | |
479 | unsigned int rreg = mc->rreg; | |
480 | unsigned int shift = mc->shift; | |
481 | int min = mc->min; | |
482 | int max = mc->max; | |
483 | unsigned int mask = (1 << fls(max)) - 1; | |
484 | unsigned int invert = mc->invert; | |
485 | unsigned int val, val_mask; | |
486 | int ret; | |
487 | ||
488 | if (invert) | |
489 | val = (max - ucontrol->value.integer.value[0]) & mask; | |
490 | else | |
491 | val = ((ucontrol->value.integer.value[0] + min) & mask); | |
492 | val_mask = mask << shift; | |
493 | val = val << shift; | |
494 | ||
495 | ret = snd_soc_component_update_bits(component, reg, val_mask, val); | |
496 | if (ret < 0) | |
497 | return ret; | |
498 | ||
499 | if (snd_soc_volsw_is_stereo(mc)) { | |
500 | if (invert) | |
501 | val = (max - ucontrol->value.integer.value[1]) & mask; | |
502 | else | |
503 | val = ((ucontrol->value.integer.value[1] + min) & mask); | |
504 | val_mask = mask << shift; | |
505 | val = val << shift; | |
506 | ||
507 | ret = snd_soc_component_update_bits(component, rreg, val_mask, | |
508 | val); | |
509 | } | |
510 | ||
511 | return ret; | |
512 | } | |
513 | EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range); | |
514 | ||
515 | /** | |
516 | * snd_soc_get_volsw_range - single mixer get callback with range | |
517 | * @kcontrol: mixer control | |
518 | * @ucontrol: control element information | |
519 | * | |
520 | * Callback to get the value, within a range, of a single mixer control. | |
521 | * | |
522 | * Returns 0 for success. | |
523 | */ | |
524 | int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, | |
525 | struct snd_ctl_elem_value *ucontrol) | |
526 | { | |
527 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
528 | struct soc_mixer_control *mc = | |
529 | (struct soc_mixer_control *)kcontrol->private_value; | |
530 | unsigned int reg = mc->reg; | |
531 | unsigned int rreg = mc->rreg; | |
532 | unsigned int shift = mc->shift; | |
533 | int min = mc->min; | |
534 | int max = mc->max; | |
535 | unsigned int mask = (1 << fls(max)) - 1; | |
536 | unsigned int invert = mc->invert; | |
537 | unsigned int val; | |
7077148f | 538 | |
cf6e26c7 | 539 | val = snd_soc_component_read(component, reg); |
7077148f MB |
540 | ucontrol->value.integer.value[0] = (val >> shift) & mask; |
541 | if (invert) | |
542 | ucontrol->value.integer.value[0] = | |
543 | max - ucontrol->value.integer.value[0]; | |
544 | else | |
545 | ucontrol->value.integer.value[0] = | |
546 | ucontrol->value.integer.value[0] - min; | |
547 | ||
548 | if (snd_soc_volsw_is_stereo(mc)) { | |
cf6e26c7 | 549 | val = snd_soc_component_read(component, rreg); |
7077148f MB |
550 | ucontrol->value.integer.value[1] = (val >> shift) & mask; |
551 | if (invert) | |
552 | ucontrol->value.integer.value[1] = | |
553 | max - ucontrol->value.integer.value[1]; | |
554 | else | |
555 | ucontrol->value.integer.value[1] = | |
556 | ucontrol->value.integer.value[1] - min; | |
557 | } | |
558 | ||
559 | return 0; | |
560 | } | |
561 | EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range); | |
562 | ||
563 | /** | |
564 | * snd_soc_limit_volume - Set new limit to an existing volume control. | |
565 | * | |
26d9ca34 | 566 | * @card: where to look for the control |
7077148f MB |
567 | * @name: Name of the control |
568 | * @max: new maximum limit | |
569 | * | |
570 | * Return 0 for success, else error. | |
571 | */ | |
26d9ca34 | 572 | int snd_soc_limit_volume(struct snd_soc_card *card, |
7077148f MB |
573 | const char *name, int max) |
574 | { | |
7077148f MB |
575 | struct snd_kcontrol *kctl; |
576 | struct soc_mixer_control *mc; | |
7077148f MB |
577 | int ret = -EINVAL; |
578 | ||
579 | /* Sanity check for name and max */ | |
580 | if (unlikely(!name || max <= 0)) | |
581 | return -EINVAL; | |
582 | ||
0881ab6e KM |
583 | kctl = snd_soc_card_get_kcontrol(card, name); |
584 | if (kctl) { | |
7077148f MB |
585 | mc = (struct soc_mixer_control *)kctl->private_value; |
586 | if (max <= mc->max) { | |
587 | mc->platform_max = max; | |
588 | ret = 0; | |
589 | } | |
590 | } | |
591 | return ret; | |
592 | } | |
593 | EXPORT_SYMBOL_GPL(snd_soc_limit_volume); | |
594 | ||
595 | int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, | |
596 | struct snd_ctl_elem_info *uinfo) | |
597 | { | |
598 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
599 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
600 | ||
601 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
602 | uinfo->count = params->num_regs * component->val_bytes; | |
603 | ||
604 | return 0; | |
605 | } | |
606 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info); | |
607 | ||
608 | int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, | |
609 | struct snd_ctl_elem_value *ucontrol) | |
610 | { | |
611 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
612 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
613 | int ret; | |
614 | ||
615 | if (component->regmap) | |
616 | ret = regmap_raw_read(component->regmap, params->base, | |
617 | ucontrol->value.bytes.data, | |
618 | params->num_regs * component->val_bytes); | |
619 | else | |
620 | ret = -EINVAL; | |
621 | ||
622 | /* Hide any masked bytes to ensure consistent data reporting */ | |
623 | if (ret == 0 && params->mask) { | |
624 | switch (component->val_bytes) { | |
625 | case 1: | |
626 | ucontrol->value.bytes.data[0] &= ~params->mask; | |
627 | break; | |
628 | case 2: | |
629 | ((u16 *)(&ucontrol->value.bytes.data))[0] | |
630 | &= cpu_to_be16(~params->mask); | |
631 | break; | |
632 | case 4: | |
633 | ((u32 *)(&ucontrol->value.bytes.data))[0] | |
634 | &= cpu_to_be32(~params->mask); | |
635 | break; | |
636 | default: | |
637 | return -EINVAL; | |
638 | } | |
639 | } | |
640 | ||
641 | return ret; | |
642 | } | |
643 | EXPORT_SYMBOL_GPL(snd_soc_bytes_get); | |
644 | ||
645 | int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, | |
646 | struct snd_ctl_elem_value *ucontrol) | |
647 | { | |
648 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
649 | struct soc_bytes *params = (void *)kcontrol->private_value; | |
650 | int ret, len; | |
651 | unsigned int val, mask; | |
652 | void *data; | |
653 | ||
654 | if (!component->regmap || !params->num_regs) | |
655 | return -EINVAL; | |
656 | ||
657 | len = params->num_regs * component->val_bytes; | |
658 | ||
659 | data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA); | |
660 | if (!data) | |
661 | return -ENOMEM; | |
662 | ||
663 | /* | |
664 | * If we've got a mask then we need to preserve the register | |
665 | * bits. We shouldn't modify the incoming data so take a | |
666 | * copy. | |
667 | */ | |
668 | if (params->mask) { | |
669 | ret = regmap_read(component->regmap, params->base, &val); | |
670 | if (ret != 0) | |
671 | goto out; | |
672 | ||
673 | val &= params->mask; | |
674 | ||
675 | switch (component->val_bytes) { | |
676 | case 1: | |
677 | ((u8 *)data)[0] &= ~params->mask; | |
678 | ((u8 *)data)[0] |= val; | |
679 | break; | |
680 | case 2: | |
681 | mask = ~params->mask; | |
682 | ret = regmap_parse_val(component->regmap, | |
683 | &mask, &mask); | |
684 | if (ret != 0) | |
685 | goto out; | |
686 | ||
687 | ((u16 *)data)[0] &= mask; | |
688 | ||
689 | ret = regmap_parse_val(component->regmap, | |
690 | &val, &val); | |
691 | if (ret != 0) | |
692 | goto out; | |
693 | ||
694 | ((u16 *)data)[0] |= val; | |
695 | break; | |
696 | case 4: | |
697 | mask = ~params->mask; | |
698 | ret = regmap_parse_val(component->regmap, | |
699 | &mask, &mask); | |
700 | if (ret != 0) | |
701 | goto out; | |
702 | ||
703 | ((u32 *)data)[0] &= mask; | |
704 | ||
705 | ret = regmap_parse_val(component->regmap, | |
706 | &val, &val); | |
707 | if (ret != 0) | |
708 | goto out; | |
709 | ||
710 | ((u32 *)data)[0] |= val; | |
711 | break; | |
712 | default: | |
713 | ret = -EINVAL; | |
714 | goto out; | |
715 | } | |
716 | } | |
717 | ||
718 | ret = regmap_raw_write(component->regmap, params->base, | |
719 | data, len); | |
720 | ||
721 | out: | |
722 | kfree(data); | |
723 | ||
724 | return ret; | |
725 | } | |
726 | EXPORT_SYMBOL_GPL(snd_soc_bytes_put); | |
727 | ||
728 | int snd_soc_bytes_info_ext(struct snd_kcontrol *kcontrol, | |
729 | struct snd_ctl_elem_info *ucontrol) | |
730 | { | |
731 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; | |
732 | ||
733 | ucontrol->type = SNDRV_CTL_ELEM_TYPE_BYTES; | |
734 | ucontrol->count = params->max; | |
735 | ||
736 | return 0; | |
737 | } | |
738 | EXPORT_SYMBOL_GPL(snd_soc_bytes_info_ext); | |
739 | ||
740 | int snd_soc_bytes_tlv_callback(struct snd_kcontrol *kcontrol, int op_flag, | |
741 | unsigned int size, unsigned int __user *tlv) | |
742 | { | |
743 | struct soc_bytes_ext *params = (void *)kcontrol->private_value; | |
744 | unsigned int count = size < params->max ? size : params->max; | |
745 | int ret = -ENXIO; | |
746 | ||
747 | switch (op_flag) { | |
748 | case SNDRV_CTL_TLV_OP_READ: | |
749 | if (params->get) | |
a1e5e7e9 | 750 | ret = params->get(kcontrol, tlv, count); |
7077148f MB |
751 | break; |
752 | case SNDRV_CTL_TLV_OP_WRITE: | |
753 | if (params->put) | |
a1e5e7e9 | 754 | ret = params->put(kcontrol, tlv, count); |
7077148f MB |
755 | break; |
756 | } | |
757 | return ret; | |
758 | } | |
759 | EXPORT_SYMBOL_GPL(snd_soc_bytes_tlv_callback); | |
760 | ||
761 | /** | |
762 | * snd_soc_info_xr_sx - signed multi register info callback | |
763 | * @kcontrol: mreg control | |
764 | * @uinfo: control element information | |
765 | * | |
766 | * Callback to provide information of a control that can | |
767 | * span multiple codec registers which together | |
768 | * forms a single signed value in a MSB/LSB manner. | |
769 | * | |
770 | * Returns 0 for success. | |
771 | */ | |
772 | int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, | |
773 | struct snd_ctl_elem_info *uinfo) | |
774 | { | |
775 | struct soc_mreg_control *mc = | |
776 | (struct soc_mreg_control *)kcontrol->private_value; | |
777 | uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; | |
778 | uinfo->count = 1; | |
779 | uinfo->value.integer.min = mc->min; | |
780 | uinfo->value.integer.max = mc->max; | |
781 | ||
782 | return 0; | |
783 | } | |
784 | EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx); | |
785 | ||
786 | /** | |
787 | * snd_soc_get_xr_sx - signed multi register get callback | |
788 | * @kcontrol: mreg control | |
789 | * @ucontrol: control element information | |
790 | * | |
791 | * Callback to get the value of a control that can span | |
792 | * multiple codec registers which together forms a single | |
793 | * signed value in a MSB/LSB manner. The control supports | |
794 | * specifying total no of bits used to allow for bitfields | |
795 | * across the multiple codec registers. | |
796 | * | |
797 | * Returns 0 for success. | |
798 | */ | |
799 | int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, | |
800 | struct snd_ctl_elem_value *ucontrol) | |
801 | { | |
802 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
803 | struct soc_mreg_control *mc = | |
804 | (struct soc_mreg_control *)kcontrol->private_value; | |
805 | unsigned int regbase = mc->regbase; | |
806 | unsigned int regcount = mc->regcount; | |
807 | unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; | |
0ab07091 | 808 | unsigned int regwmask = (1UL<<regwshift)-1; |
7077148f MB |
809 | unsigned int invert = mc->invert; |
810 | unsigned long mask = (1UL<<mc->nbits)-1; | |
811 | long min = mc->min; | |
812 | long max = mc->max; | |
813 | long val = 0; | |
814 | unsigned int regval; | |
815 | unsigned int i; | |
7077148f MB |
816 | |
817 | for (i = 0; i < regcount; i++) { | |
cf6e26c7 | 818 | regval = snd_soc_component_read(component, regbase+i); |
7077148f MB |
819 | val |= (regval & regwmask) << (regwshift*(regcount-i-1)); |
820 | } | |
821 | val &= mask; | |
822 | if (min < 0 && val > max) | |
823 | val |= ~mask; | |
824 | if (invert) | |
825 | val = max - val; | |
826 | ucontrol->value.integer.value[0] = val; | |
827 | ||
828 | return 0; | |
829 | } | |
830 | EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx); | |
831 | ||
832 | /** | |
833 | * snd_soc_put_xr_sx - signed multi register get callback | |
834 | * @kcontrol: mreg control | |
835 | * @ucontrol: control element information | |
836 | * | |
837 | * Callback to set the value of a control that can span | |
838 | * multiple codec registers which together forms a single | |
839 | * signed value in a MSB/LSB manner. The control supports | |
840 | * specifying total no of bits used to allow for bitfields | |
841 | * across the multiple codec registers. | |
842 | * | |
843 | * Returns 0 for success. | |
844 | */ | |
845 | int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, | |
846 | struct snd_ctl_elem_value *ucontrol) | |
847 | { | |
848 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
849 | struct soc_mreg_control *mc = | |
850 | (struct soc_mreg_control *)kcontrol->private_value; | |
851 | unsigned int regbase = mc->regbase; | |
852 | unsigned int regcount = mc->regcount; | |
853 | unsigned int regwshift = component->val_bytes * BITS_PER_BYTE; | |
0ab07091 | 854 | unsigned int regwmask = (1UL<<regwshift)-1; |
7077148f MB |
855 | unsigned int invert = mc->invert; |
856 | unsigned long mask = (1UL<<mc->nbits)-1; | |
857 | long max = mc->max; | |
858 | long val = ucontrol->value.integer.value[0]; | |
859 | unsigned int i, regval, regmask; | |
860 | int err; | |
861 | ||
862 | if (invert) | |
863 | val = max - val; | |
864 | val &= mask; | |
865 | for (i = 0; i < regcount; i++) { | |
866 | regval = (val >> (regwshift*(regcount-i-1))) & regwmask; | |
867 | regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask; | |
868 | err = snd_soc_component_update_bits(component, regbase+i, | |
869 | regmask, regval); | |
870 | if (err < 0) | |
871 | return err; | |
872 | } | |
873 | ||
874 | return 0; | |
875 | } | |
876 | EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx); | |
877 | ||
878 | /** | |
879 | * snd_soc_get_strobe - strobe get callback | |
880 | * @kcontrol: mixer control | |
881 | * @ucontrol: control element information | |
882 | * | |
883 | * Callback get the value of a strobe mixer control. | |
884 | * | |
885 | * Returns 0 for success. | |
886 | */ | |
887 | int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, | |
888 | struct snd_ctl_elem_value *ucontrol) | |
889 | { | |
890 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
891 | struct soc_mixer_control *mc = | |
892 | (struct soc_mixer_control *)kcontrol->private_value; | |
893 | unsigned int reg = mc->reg; | |
894 | unsigned int shift = mc->shift; | |
895 | unsigned int mask = 1 << shift; | |
896 | unsigned int invert = mc->invert != 0; | |
897 | unsigned int val; | |
7077148f | 898 | |
cf6e26c7 | 899 | val = snd_soc_component_read(component, reg); |
7077148f MB |
900 | val &= mask; |
901 | ||
902 | if (shift != 0 && val != 0) | |
903 | val = val >> shift; | |
904 | ucontrol->value.enumerated.item[0] = val ^ invert; | |
905 | ||
906 | return 0; | |
907 | } | |
908 | EXPORT_SYMBOL_GPL(snd_soc_get_strobe); | |
909 | ||
910 | /** | |
911 | * snd_soc_put_strobe - strobe put callback | |
912 | * @kcontrol: mixer control | |
913 | * @ucontrol: control element information | |
914 | * | |
915 | * Callback strobe a register bit to high then low (or the inverse) | |
916 | * in one pass of a single mixer enum control. | |
917 | * | |
918 | * Returns 1 for success. | |
919 | */ | |
920 | int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, | |
921 | struct snd_ctl_elem_value *ucontrol) | |
922 | { | |
923 | struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); | |
924 | struct soc_mixer_control *mc = | |
925 | (struct soc_mixer_control *)kcontrol->private_value; | |
926 | unsigned int reg = mc->reg; | |
927 | unsigned int shift = mc->shift; | |
928 | unsigned int mask = 1 << shift; | |
929 | unsigned int invert = mc->invert != 0; | |
930 | unsigned int strobe = ucontrol->value.enumerated.item[0] != 0; | |
931 | unsigned int val1 = (strobe ^ invert) ? mask : 0; | |
932 | unsigned int val2 = (strobe ^ invert) ? 0 : mask; | |
933 | int err; | |
934 | ||
935 | err = snd_soc_component_update_bits(component, reg, mask, val1); | |
936 | if (err < 0) | |
937 | return err; | |
938 | ||
939 | return snd_soc_component_update_bits(component, reg, mask, val2); | |
940 | } | |
941 | EXPORT_SYMBOL_GPL(snd_soc_put_strobe); |