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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * wm8510.c -- WM8510 ALSA Soc Audio driver
4 *
5 * Copyright 2006 Wolfson Microelectronics PLC.
6 *
7 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
8 */
9
10#include <linux/mod_devicetable.h>
11#include <linux/module.h>
12#include <linux/moduleparam.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/delay.h>
16#include <linux/pm.h>
17#include <linux/i2c.h>
18#include <linux/spi/spi.h>
19#include <linux/slab.h>
20#include <linux/regmap.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/soc.h>
25#include <sound/initval.h>
26
27#include "wm8510.h"
28
29/*
30 * wm8510 register cache
31 * We can't read the WM8510 register space when we are
32 * using 2 wire for device control, so we cache them instead.
33 */
34static const struct reg_default wm8510_reg_defaults[] = {
35 { 1, 0x0000 },
36 { 2, 0x0000 },
37 { 3, 0x0000 },
38 { 4, 0x0050 },
39 { 5, 0x0000 },
40 { 6, 0x0140 },
41 { 7, 0x0000 },
42 { 8, 0x0000 },
43 { 9, 0x0000 },
44 { 10, 0x0000 },
45 { 11, 0x00ff },
46 { 12, 0x0000 },
47 { 13, 0x0000 },
48 { 14, 0x0100 },
49 { 15, 0x00ff },
50 { 16, 0x0000 },
51 { 17, 0x0000 },
52 { 18, 0x012c },
53 { 19, 0x002c },
54 { 20, 0x002c },
55 { 21, 0x002c },
56 { 22, 0x002c },
57 { 23, 0x0000 },
58 { 24, 0x0032 },
59 { 25, 0x0000 },
60 { 26, 0x0000 },
61 { 27, 0x0000 },
62 { 28, 0x0000 },
63 { 29, 0x0000 },
64 { 30, 0x0000 },
65 { 31, 0x0000 },
66 { 32, 0x0038 },
67 { 33, 0x000b },
68 { 34, 0x0032 },
69 { 35, 0x0000 },
70 { 36, 0x0008 },
71 { 37, 0x000c },
72 { 38, 0x0093 },
73 { 39, 0x00e9 },
74 { 40, 0x0000 },
75 { 41, 0x0000 },
76 { 42, 0x0000 },
77 { 43, 0x0000 },
78 { 44, 0x0003 },
79 { 45, 0x0010 },
80 { 46, 0x0000 },
81 { 47, 0x0000 },
82 { 48, 0x0000 },
83 { 49, 0x0002 },
84 { 50, 0x0001 },
85 { 51, 0x0000 },
86 { 52, 0x0000 },
87 { 53, 0x0000 },
88 { 54, 0x0039 },
89 { 55, 0x0000 },
90 { 56, 0x0001 },
91};
92
93static bool wm8510_volatile(struct device *dev, unsigned int reg)
94{
95 switch (reg) {
96 case WM8510_RESET:
97 return true;
98 default:
99 return false;
100 }
101}
102
103#define WM8510_POWER1_BIASEN 0x08
104#define WM8510_POWER1_BUFIOEN 0x10
105
106#define wm8510_reset(c) snd_soc_component_write(c, WM8510_RESET, 0)
107
108/* codec private data */
109struct wm8510_priv {
110 struct regmap *regmap;
111};
112
113static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
114static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
115static const char *wm8510_alc[] = { "ALC", "Limiter" };
116
117static const struct soc_enum wm8510_enum[] = {
118 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
119 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
120 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
121 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
122};
123
124static const struct snd_kcontrol_new wm8510_snd_controls[] = {
125
126SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
127
128SOC_ENUM("DAC Companding", wm8510_enum[1]),
129SOC_ENUM("ADC Companding", wm8510_enum[0]),
130
131SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
132SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
133
134SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
135
136SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
137SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
138SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
139
140SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
141
142SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
143SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
144SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
145
146SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
147SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
148
149SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
150SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
151SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
152
153SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
154SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
155SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
156
157SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
158SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
159SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
160
161SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
162SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
163
164SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
165SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
166
167SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
168SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
169SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
170SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
171
172SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
173SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
174};
175
176/* Speaker Output Mixer */
177static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
178SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
179SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
180SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
181};
182
183/* Mono Output Mixer */
184static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
185SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
186SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
187SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
188};
189
190static const struct snd_kcontrol_new wm8510_boost_controls[] = {
191SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
192SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
193SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
194};
195
196static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
197SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
198SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
199SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
200};
201
202static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
203SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
204 &wm8510_speaker_mixer_controls[0],
205 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
206SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
207 &wm8510_mono_mixer_controls[0],
208 ARRAY_SIZE(wm8510_mono_mixer_controls)),
209SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
210SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
211SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
212SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
213SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
214SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
215
216SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
217 &wm8510_micpga_controls[0],
218 ARRAY_SIZE(wm8510_micpga_controls)),
219SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
220 &wm8510_boost_controls[0],
221 ARRAY_SIZE(wm8510_boost_controls)),
222
223SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
224
225SND_SOC_DAPM_INPUT("MICN"),
226SND_SOC_DAPM_INPUT("MICP"),
227SND_SOC_DAPM_INPUT("AUX"),
228SND_SOC_DAPM_OUTPUT("MONOOUT"),
229SND_SOC_DAPM_OUTPUT("SPKOUTP"),
230SND_SOC_DAPM_OUTPUT("SPKOUTN"),
231};
232
233static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
234 /* Mono output mixer */
235 {"Mono Mixer", "PCM Playback Switch", "DAC"},
236 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
237 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
238
239 /* Speaker output mixer */
240 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
241 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
242 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
243
244 /* Outputs */
245 {"Mono Out", NULL, "Mono Mixer"},
246 {"MONOOUT", NULL, "Mono Out"},
247 {"SpkN Out", NULL, "Speaker Mixer"},
248 {"SpkP Out", NULL, "Speaker Mixer"},
249 {"SPKOUTN", NULL, "SpkN Out"},
250 {"SPKOUTP", NULL, "SpkP Out"},
251
252 /* Microphone PGA */
253 {"Mic PGA", "MICN Switch", "MICN"},
254 {"Mic PGA", "MICP Switch", "MICP"},
255 { "Mic PGA", "AUX Switch", "Aux Input" },
256
257 /* Boost Mixer */
258 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
259 {"Boost Mixer", "Mic Volume", "MICP"},
260 {"Boost Mixer", "Aux Volume", "Aux Input"},
261
262 {"ADC", NULL, "Boost Mixer"},
263};
264
265struct pll_ {
266 unsigned int pre_div:4; /* prescale - 1 */
267 unsigned int n:4;
268 unsigned int k;
269};
270
271static struct pll_ pll_div;
272
273/* The size in bits of the pll divide multiplied by 10
274 * to allow rounding later */
275#define FIXED_PLL_SIZE ((1 << 24) * 10)
276
277static void pll_factors(unsigned int target, unsigned int source)
278{
279 unsigned long long Kpart;
280 unsigned int K, Ndiv, Nmod;
281
282 Ndiv = target / source;
283 if (Ndiv < 6) {
284 source >>= 1;
285 pll_div.pre_div = 1;
286 Ndiv = target / source;
287 } else
288 pll_div.pre_div = 0;
289
290 if ((Ndiv < 6) || (Ndiv > 12))
291 printk(KERN_WARNING
292 "WM8510 N value %u outwith recommended range!d\n",
293 Ndiv);
294
295 pll_div.n = Ndiv;
296 Nmod = target % source;
297 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
298
299 do_div(Kpart, source);
300
301 K = Kpart & 0xFFFFFFFF;
302
303 /* Check if we need to round */
304 if ((K % 10) >= 5)
305 K += 5;
306
307 /* Move down to proper range now rounding is done */
308 K /= 10;
309
310 pll_div.k = K;
311}
312
313static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
314 int source, unsigned int freq_in, unsigned int freq_out)
315{
316 struct snd_soc_component *component = codec_dai->component;
317 u16 reg;
318
319 if (freq_in == 0 || freq_out == 0) {
320 /* Clock CODEC directly from MCLK */
321 reg = snd_soc_component_read(component, WM8510_CLOCK);
322 snd_soc_component_write(component, WM8510_CLOCK, reg & 0x0ff);
323
324 /* Turn off PLL */
325 reg = snd_soc_component_read(component, WM8510_POWER1);
326 snd_soc_component_write(component, WM8510_POWER1, reg & 0x1df);
327 return 0;
328 }
329
330 pll_factors(freq_out*4, freq_in);
331
332 snd_soc_component_write(component, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
333 snd_soc_component_write(component, WM8510_PLLK1, pll_div.k >> 18);
334 snd_soc_component_write(component, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
335 snd_soc_component_write(component, WM8510_PLLK3, pll_div.k & 0x1ff);
336 reg = snd_soc_component_read(component, WM8510_POWER1);
337 snd_soc_component_write(component, WM8510_POWER1, reg | 0x020);
338
339 /* Run CODEC from PLL instead of MCLK */
340 reg = snd_soc_component_read(component, WM8510_CLOCK);
341 snd_soc_component_write(component, WM8510_CLOCK, reg | 0x100);
342
343 return 0;
344}
345
346/*
347 * Configure WM8510 clock dividers.
348 */
349static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
350 int div_id, int div)
351{
352 struct snd_soc_component *component = codec_dai->component;
353 u16 reg;
354
355 switch (div_id) {
356 case WM8510_OPCLKDIV:
357 reg = snd_soc_component_read(component, WM8510_GPIO) & 0x1cf;
358 snd_soc_component_write(component, WM8510_GPIO, reg | div);
359 break;
360 case WM8510_MCLKDIV:
361 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x11f;
362 snd_soc_component_write(component, WM8510_CLOCK, reg | div);
363 break;
364 case WM8510_ADCCLK:
365 reg = snd_soc_component_read(component, WM8510_ADC) & 0x1f7;
366 snd_soc_component_write(component, WM8510_ADC, reg | div);
367 break;
368 case WM8510_DACCLK:
369 reg = snd_soc_component_read(component, WM8510_DAC) & 0x1f7;
370 snd_soc_component_write(component, WM8510_DAC, reg | div);
371 break;
372 case WM8510_BCLKDIV:
373 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x1e3;
374 snd_soc_component_write(component, WM8510_CLOCK, reg | div);
375 break;
376 default:
377 return -EINVAL;
378 }
379
380 return 0;
381}
382
383static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
384 unsigned int fmt)
385{
386 struct snd_soc_component *component = codec_dai->component;
387 u16 iface = 0;
388 u16 clk = snd_soc_component_read(component, WM8510_CLOCK) & 0x1fe;
389
390 /* set master/slave audio interface */
391 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
392 case SND_SOC_DAIFMT_CBM_CFM:
393 clk |= 0x0001;
394 break;
395 case SND_SOC_DAIFMT_CBS_CFS:
396 break;
397 default:
398 return -EINVAL;
399 }
400
401 /* interface format */
402 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
403 case SND_SOC_DAIFMT_I2S:
404 iface |= 0x0010;
405 break;
406 case SND_SOC_DAIFMT_RIGHT_J:
407 break;
408 case SND_SOC_DAIFMT_LEFT_J:
409 iface |= 0x0008;
410 break;
411 case SND_SOC_DAIFMT_DSP_A:
412 iface |= 0x00018;
413 break;
414 default:
415 return -EINVAL;
416 }
417
418 /* clock inversion */
419 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
420 case SND_SOC_DAIFMT_NB_NF:
421 break;
422 case SND_SOC_DAIFMT_IB_IF:
423 iface |= 0x0180;
424 break;
425 case SND_SOC_DAIFMT_IB_NF:
426 iface |= 0x0100;
427 break;
428 case SND_SOC_DAIFMT_NB_IF:
429 iface |= 0x0080;
430 break;
431 default:
432 return -EINVAL;
433 }
434
435 snd_soc_component_write(component, WM8510_IFACE, iface);
436 snd_soc_component_write(component, WM8510_CLOCK, clk);
437 return 0;
438}
439
440static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
441 struct snd_pcm_hw_params *params,
442 struct snd_soc_dai *dai)
443{
444 struct snd_soc_component *component = dai->component;
445 u16 iface = snd_soc_component_read(component, WM8510_IFACE) & 0x19f;
446 u16 adn = snd_soc_component_read(component, WM8510_ADD) & 0x1f1;
447
448 /* bit size */
449 switch (params_width(params)) {
450 case 16:
451 break;
452 case 20:
453 iface |= 0x0020;
454 break;
455 case 24:
456 iface |= 0x0040;
457 break;
458 case 32:
459 iface |= 0x0060;
460 break;
461 }
462
463 /* filter coefficient */
464 switch (params_rate(params)) {
465 case 8000:
466 adn |= 0x5 << 1;
467 break;
468 case 11025:
469 adn |= 0x4 << 1;
470 break;
471 case 16000:
472 adn |= 0x3 << 1;
473 break;
474 case 22050:
475 adn |= 0x2 << 1;
476 break;
477 case 32000:
478 adn |= 0x1 << 1;
479 break;
480 case 44100:
481 case 48000:
482 break;
483 }
484
485 snd_soc_component_write(component, WM8510_IFACE, iface);
486 snd_soc_component_write(component, WM8510_ADD, adn);
487 return 0;
488}
489
490static int wm8510_mute(struct snd_soc_dai *dai, int mute, int direction)
491{
492 struct snd_soc_component *component = dai->component;
493 u16 mute_reg = snd_soc_component_read(component, WM8510_DAC) & 0xffbf;
494
495 if (mute)
496 snd_soc_component_write(component, WM8510_DAC, mute_reg | 0x40);
497 else
498 snd_soc_component_write(component, WM8510_DAC, mute_reg);
499 return 0;
500}
501
502/* liam need to make this lower power with dapm */
503static int wm8510_set_bias_level(struct snd_soc_component *component,
504 enum snd_soc_bias_level level)
505{
506 struct wm8510_priv *wm8510 = snd_soc_component_get_drvdata(component);
507 u16 power1 = snd_soc_component_read(component, WM8510_POWER1) & ~0x3;
508
509 switch (level) {
510 case SND_SOC_BIAS_ON:
511 case SND_SOC_BIAS_PREPARE:
512 power1 |= 0x1; /* VMID 50k */
513 snd_soc_component_write(component, WM8510_POWER1, power1);
514 break;
515
516 case SND_SOC_BIAS_STANDBY:
517 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
518
519 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
520 regcache_sync(wm8510->regmap);
521
522 /* Initial cap charge at VMID 5k */
523 snd_soc_component_write(component, WM8510_POWER1, power1 | 0x3);
524 mdelay(100);
525 }
526
527 power1 |= 0x2; /* VMID 500k */
528 snd_soc_component_write(component, WM8510_POWER1, power1);
529 break;
530
531 case SND_SOC_BIAS_OFF:
532 snd_soc_component_write(component, WM8510_POWER1, 0);
533 snd_soc_component_write(component, WM8510_POWER2, 0);
534 snd_soc_component_write(component, WM8510_POWER3, 0);
535 break;
536 }
537
538 return 0;
539}
540
541#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
542 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
543 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
544
545#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
546 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
547
548static const struct snd_soc_dai_ops wm8510_dai_ops = {
549 .hw_params = wm8510_pcm_hw_params,
550 .mute_stream = wm8510_mute,
551 .set_fmt = wm8510_set_dai_fmt,
552 .set_clkdiv = wm8510_set_dai_clkdiv,
553 .set_pll = wm8510_set_dai_pll,
554 .no_capture_mute = 1,
555};
556
557static struct snd_soc_dai_driver wm8510_dai = {
558 .name = "wm8510-hifi",
559 .playback = {
560 .stream_name = "Playback",
561 .channels_min = 2,
562 .channels_max = 2,
563 .rates = WM8510_RATES,
564 .formats = WM8510_FORMATS,},
565 .capture = {
566 .stream_name = "Capture",
567 .channels_min = 2,
568 .channels_max = 2,
569 .rates = WM8510_RATES,
570 .formats = WM8510_FORMATS,},
571 .ops = &wm8510_dai_ops,
572 .symmetric_rate = 1,
573};
574
575static int wm8510_probe(struct snd_soc_component *component)
576{
577 wm8510_reset(component);
578
579 return 0;
580}
581
582static const struct snd_soc_component_driver soc_component_dev_wm8510 = {
583 .probe = wm8510_probe,
584 .set_bias_level = wm8510_set_bias_level,
585 .controls = wm8510_snd_controls,
586 .num_controls = ARRAY_SIZE(wm8510_snd_controls),
587 .dapm_widgets = wm8510_dapm_widgets,
588 .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
589 .dapm_routes = wm8510_dapm_routes,
590 .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
591 .suspend_bias_off = 1,
592 .idle_bias_on = 1,
593 .use_pmdown_time = 1,
594 .endianness = 1,
595};
596
597static const struct of_device_id wm8510_of_match[] = {
598 { .compatible = "wlf,wm8510" },
599 { },
600};
601MODULE_DEVICE_TABLE(of, wm8510_of_match);
602
603static const struct regmap_config wm8510_regmap = {
604 .reg_bits = 7,
605 .val_bits = 9,
606 .max_register = WM8510_MONOMIX,
607
608 .reg_defaults = wm8510_reg_defaults,
609 .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
610 .cache_type = REGCACHE_MAPLE,
611
612 .volatile_reg = wm8510_volatile,
613};
614
615#if defined(CONFIG_SPI_MASTER)
616static int wm8510_spi_probe(struct spi_device *spi)
617{
618 struct wm8510_priv *wm8510;
619 int ret;
620
621 wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
622 GFP_KERNEL);
623 if (wm8510 == NULL)
624 return -ENOMEM;
625
626 wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
627 if (IS_ERR(wm8510->regmap))
628 return PTR_ERR(wm8510->regmap);
629
630 spi_set_drvdata(spi, wm8510);
631
632 ret = devm_snd_soc_register_component(&spi->dev,
633 &soc_component_dev_wm8510, &wm8510_dai, 1);
634
635 return ret;
636}
637
638static struct spi_driver wm8510_spi_driver = {
639 .driver = {
640 .name = "wm8510",
641 .of_match_table = wm8510_of_match,
642 },
643 .probe = wm8510_spi_probe,
644};
645#endif /* CONFIG_SPI_MASTER */
646
647#if IS_ENABLED(CONFIG_I2C)
648static int wm8510_i2c_probe(struct i2c_client *i2c)
649{
650 struct wm8510_priv *wm8510;
651 int ret;
652
653 wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
654 GFP_KERNEL);
655 if (wm8510 == NULL)
656 return -ENOMEM;
657
658 wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
659 if (IS_ERR(wm8510->regmap))
660 return PTR_ERR(wm8510->regmap);
661
662 i2c_set_clientdata(i2c, wm8510);
663
664 ret = devm_snd_soc_register_component(&i2c->dev,
665 &soc_component_dev_wm8510, &wm8510_dai, 1);
666
667 return ret;
668}
669
670static const struct i2c_device_id wm8510_i2c_id[] = {
671 { "wm8510" },
672 { }
673};
674MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
675
676static struct i2c_driver wm8510_i2c_driver = {
677 .driver = {
678 .name = "wm8510",
679 .of_match_table = wm8510_of_match,
680 },
681 .probe = wm8510_i2c_probe,
682 .id_table = wm8510_i2c_id,
683};
684#endif
685
686static int __init wm8510_modinit(void)
687{
688 int ret = 0;
689#if IS_ENABLED(CONFIG_I2C)
690 ret = i2c_add_driver(&wm8510_i2c_driver);
691 if (ret != 0) {
692 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
693 ret);
694 }
695#endif
696#if defined(CONFIG_SPI_MASTER)
697 ret = spi_register_driver(&wm8510_spi_driver);
698 if (ret != 0) {
699 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
700 ret);
701 }
702#endif
703 return ret;
704}
705module_init(wm8510_modinit);
706
707static void __exit wm8510_exit(void)
708{
709#if IS_ENABLED(CONFIG_I2C)
710 i2c_del_driver(&wm8510_i2c_driver);
711#endif
712#if defined(CONFIG_SPI_MASTER)
713 spi_unregister_driver(&wm8510_spi_driver);
714#endif
715}
716module_exit(wm8510_exit);
717
718MODULE_DESCRIPTION("ASoC WM8510 driver");
719MODULE_AUTHOR("Liam Girdwood");
720MODULE_LICENSE("GPL");
1/*
2 * wm8510.c -- WM8510 ALSA Soc Audio driver
3 *
4 * Copyright 2006 Wolfson Microelectronics PLC.
5 *
6 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#include <linux/module.h>
14#include <linux/moduleparam.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/delay.h>
18#include <linux/pm.h>
19#include <linux/i2c.h>
20#include <linux/spi/spi.h>
21#include <linux/slab.h>
22#include <linux/of_device.h>
23#include <linux/regmap.h>
24#include <sound/core.h>
25#include <sound/pcm.h>
26#include <sound/pcm_params.h>
27#include <sound/soc.h>
28#include <sound/initval.h>
29
30#include "wm8510.h"
31
32/*
33 * wm8510 register cache
34 * We can't read the WM8510 register space when we are
35 * using 2 wire for device control, so we cache them instead.
36 */
37static const struct reg_default wm8510_reg_defaults[] = {
38 { 1, 0x0000 },
39 { 2, 0x0000 },
40 { 3, 0x0000 },
41 { 4, 0x0050 },
42 { 5, 0x0000 },
43 { 6, 0x0140 },
44 { 7, 0x0000 },
45 { 8, 0x0000 },
46 { 9, 0x0000 },
47 { 10, 0x0000 },
48 { 11, 0x00ff },
49 { 12, 0x0000 },
50 { 13, 0x0000 },
51 { 14, 0x0100 },
52 { 15, 0x00ff },
53 { 16, 0x0000 },
54 { 17, 0x0000 },
55 { 18, 0x012c },
56 { 19, 0x002c },
57 { 20, 0x002c },
58 { 21, 0x002c },
59 { 22, 0x002c },
60 { 23, 0x0000 },
61 { 24, 0x0032 },
62 { 25, 0x0000 },
63 { 26, 0x0000 },
64 { 27, 0x0000 },
65 { 28, 0x0000 },
66 { 29, 0x0000 },
67 { 30, 0x0000 },
68 { 31, 0x0000 },
69 { 32, 0x0038 },
70 { 33, 0x000b },
71 { 34, 0x0032 },
72 { 35, 0x0000 },
73 { 36, 0x0008 },
74 { 37, 0x000c },
75 { 38, 0x0093 },
76 { 39, 0x00e9 },
77 { 40, 0x0000 },
78 { 41, 0x0000 },
79 { 42, 0x0000 },
80 { 43, 0x0000 },
81 { 44, 0x0003 },
82 { 45, 0x0010 },
83 { 46, 0x0000 },
84 { 47, 0x0000 },
85 { 48, 0x0000 },
86 { 49, 0x0002 },
87 { 50, 0x0001 },
88 { 51, 0x0000 },
89 { 52, 0x0000 },
90 { 53, 0x0000 },
91 { 54, 0x0039 },
92 { 55, 0x0000 },
93 { 56, 0x0001 },
94};
95
96static bool wm8510_volatile(struct device *dev, unsigned int reg)
97{
98 switch (reg) {
99 case WM8510_RESET:
100 return true;
101 default:
102 return false;
103 }
104}
105
106#define WM8510_POWER1_BIASEN 0x08
107#define WM8510_POWER1_BUFIOEN 0x10
108
109#define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
110
111/* codec private data */
112struct wm8510_priv {
113 struct regmap *regmap;
114};
115
116static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
117static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
118static const char *wm8510_alc[] = { "ALC", "Limiter" };
119
120static const struct soc_enum wm8510_enum[] = {
121 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
122 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
123 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
124 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
125};
126
127static const struct snd_kcontrol_new wm8510_snd_controls[] = {
128
129SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
130
131SOC_ENUM("DAC Companding", wm8510_enum[1]),
132SOC_ENUM("ADC Companding", wm8510_enum[0]),
133
134SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
135SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
136
137SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
138
139SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
140SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
141SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
142
143SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
144
145SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
146SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
147SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
148
149SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
150SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
151
152SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
153SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
154SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
155
156SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
157SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
158SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
159
160SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
161SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
162SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
163
164SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
165SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
166
167SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
168SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
169
170SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
171SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
172SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
173SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
174
175SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
176SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
177};
178
179/* Speaker Output Mixer */
180static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
181SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
182SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
183SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
184};
185
186/* Mono Output Mixer */
187static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
188SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
189SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
190SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
191};
192
193static const struct snd_kcontrol_new wm8510_boost_controls[] = {
194SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
195SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
196SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
197};
198
199static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
200SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
201SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
202SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
203};
204
205static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
206SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
207 &wm8510_speaker_mixer_controls[0],
208 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
209SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
210 &wm8510_mono_mixer_controls[0],
211 ARRAY_SIZE(wm8510_mono_mixer_controls)),
212SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
213SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
214SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
215SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
216SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
217SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
218
219SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
220 &wm8510_micpga_controls[0],
221 ARRAY_SIZE(wm8510_micpga_controls)),
222SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
223 &wm8510_boost_controls[0],
224 ARRAY_SIZE(wm8510_boost_controls)),
225
226SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
227
228SND_SOC_DAPM_INPUT("MICN"),
229SND_SOC_DAPM_INPUT("MICP"),
230SND_SOC_DAPM_INPUT("AUX"),
231SND_SOC_DAPM_OUTPUT("MONOOUT"),
232SND_SOC_DAPM_OUTPUT("SPKOUTP"),
233SND_SOC_DAPM_OUTPUT("SPKOUTN"),
234};
235
236static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
237 /* Mono output mixer */
238 {"Mono Mixer", "PCM Playback Switch", "DAC"},
239 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
240 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
241
242 /* Speaker output mixer */
243 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
244 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
245 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
246
247 /* Outputs */
248 {"Mono Out", NULL, "Mono Mixer"},
249 {"MONOOUT", NULL, "Mono Out"},
250 {"SpkN Out", NULL, "Speaker Mixer"},
251 {"SpkP Out", NULL, "Speaker Mixer"},
252 {"SPKOUTN", NULL, "SpkN Out"},
253 {"SPKOUTP", NULL, "SpkP Out"},
254
255 /* Microphone PGA */
256 {"Mic PGA", "MICN Switch", "MICN"},
257 {"Mic PGA", "MICP Switch", "MICP"},
258 { "Mic PGA", "AUX Switch", "Aux Input" },
259
260 /* Boost Mixer */
261 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
262 {"Boost Mixer", "Mic Volume", "MICP"},
263 {"Boost Mixer", "Aux Volume", "Aux Input"},
264
265 {"ADC", NULL, "Boost Mixer"},
266};
267
268struct pll_ {
269 unsigned int pre_div:4; /* prescale - 1 */
270 unsigned int n:4;
271 unsigned int k;
272};
273
274static struct pll_ pll_div;
275
276/* The size in bits of the pll divide multiplied by 10
277 * to allow rounding later */
278#define FIXED_PLL_SIZE ((1 << 24) * 10)
279
280static void pll_factors(unsigned int target, unsigned int source)
281{
282 unsigned long long Kpart;
283 unsigned int K, Ndiv, Nmod;
284
285 Ndiv = target / source;
286 if (Ndiv < 6) {
287 source >>= 1;
288 pll_div.pre_div = 1;
289 Ndiv = target / source;
290 } else
291 pll_div.pre_div = 0;
292
293 if ((Ndiv < 6) || (Ndiv > 12))
294 printk(KERN_WARNING
295 "WM8510 N value %u outwith recommended range!d\n",
296 Ndiv);
297
298 pll_div.n = Ndiv;
299 Nmod = target % source;
300 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
301
302 do_div(Kpart, source);
303
304 K = Kpart & 0xFFFFFFFF;
305
306 /* Check if we need to round */
307 if ((K % 10) >= 5)
308 K += 5;
309
310 /* Move down to proper range now rounding is done */
311 K /= 10;
312
313 pll_div.k = K;
314}
315
316static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
317 int source, unsigned int freq_in, unsigned int freq_out)
318{
319 struct snd_soc_codec *codec = codec_dai->codec;
320 u16 reg;
321
322 if (freq_in == 0 || freq_out == 0) {
323 /* Clock CODEC directly from MCLK */
324 reg = snd_soc_read(codec, WM8510_CLOCK);
325 snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
326
327 /* Turn off PLL */
328 reg = snd_soc_read(codec, WM8510_POWER1);
329 snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
330 return 0;
331 }
332
333 pll_factors(freq_out*4, freq_in);
334
335 snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
336 snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
337 snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
338 snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
339 reg = snd_soc_read(codec, WM8510_POWER1);
340 snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
341
342 /* Run CODEC from PLL instead of MCLK */
343 reg = snd_soc_read(codec, WM8510_CLOCK);
344 snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
345
346 return 0;
347}
348
349/*
350 * Configure WM8510 clock dividers.
351 */
352static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
353 int div_id, int div)
354{
355 struct snd_soc_codec *codec = codec_dai->codec;
356 u16 reg;
357
358 switch (div_id) {
359 case WM8510_OPCLKDIV:
360 reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
361 snd_soc_write(codec, WM8510_GPIO, reg | div);
362 break;
363 case WM8510_MCLKDIV:
364 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
365 snd_soc_write(codec, WM8510_CLOCK, reg | div);
366 break;
367 case WM8510_ADCCLK:
368 reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
369 snd_soc_write(codec, WM8510_ADC, reg | div);
370 break;
371 case WM8510_DACCLK:
372 reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
373 snd_soc_write(codec, WM8510_DAC, reg | div);
374 break;
375 case WM8510_BCLKDIV:
376 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
377 snd_soc_write(codec, WM8510_CLOCK, reg | div);
378 break;
379 default:
380 return -EINVAL;
381 }
382
383 return 0;
384}
385
386static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
387 unsigned int fmt)
388{
389 struct snd_soc_codec *codec = codec_dai->codec;
390 u16 iface = 0;
391 u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
392
393 /* set master/slave audio interface */
394 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
395 case SND_SOC_DAIFMT_CBM_CFM:
396 clk |= 0x0001;
397 break;
398 case SND_SOC_DAIFMT_CBS_CFS:
399 break;
400 default:
401 return -EINVAL;
402 }
403
404 /* interface format */
405 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
406 case SND_SOC_DAIFMT_I2S:
407 iface |= 0x0010;
408 break;
409 case SND_SOC_DAIFMT_RIGHT_J:
410 break;
411 case SND_SOC_DAIFMT_LEFT_J:
412 iface |= 0x0008;
413 break;
414 case SND_SOC_DAIFMT_DSP_A:
415 iface |= 0x00018;
416 break;
417 default:
418 return -EINVAL;
419 }
420
421 /* clock inversion */
422 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
423 case SND_SOC_DAIFMT_NB_NF:
424 break;
425 case SND_SOC_DAIFMT_IB_IF:
426 iface |= 0x0180;
427 break;
428 case SND_SOC_DAIFMT_IB_NF:
429 iface |= 0x0100;
430 break;
431 case SND_SOC_DAIFMT_NB_IF:
432 iface |= 0x0080;
433 break;
434 default:
435 return -EINVAL;
436 }
437
438 snd_soc_write(codec, WM8510_IFACE, iface);
439 snd_soc_write(codec, WM8510_CLOCK, clk);
440 return 0;
441}
442
443static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
444 struct snd_pcm_hw_params *params,
445 struct snd_soc_dai *dai)
446{
447 struct snd_soc_codec *codec = dai->codec;
448 u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
449 u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
450
451 /* bit size */
452 switch (params_width(params)) {
453 case 16:
454 break;
455 case 20:
456 iface |= 0x0020;
457 break;
458 case 24:
459 iface |= 0x0040;
460 break;
461 case 32:
462 iface |= 0x0060;
463 break;
464 }
465
466 /* filter coefficient */
467 switch (params_rate(params)) {
468 case 8000:
469 adn |= 0x5 << 1;
470 break;
471 case 11025:
472 adn |= 0x4 << 1;
473 break;
474 case 16000:
475 adn |= 0x3 << 1;
476 break;
477 case 22050:
478 adn |= 0x2 << 1;
479 break;
480 case 32000:
481 adn |= 0x1 << 1;
482 break;
483 case 44100:
484 case 48000:
485 break;
486 }
487
488 snd_soc_write(codec, WM8510_IFACE, iface);
489 snd_soc_write(codec, WM8510_ADD, adn);
490 return 0;
491}
492
493static int wm8510_mute(struct snd_soc_dai *dai, int mute)
494{
495 struct snd_soc_codec *codec = dai->codec;
496 u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
497
498 if (mute)
499 snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
500 else
501 snd_soc_write(codec, WM8510_DAC, mute_reg);
502 return 0;
503}
504
505/* liam need to make this lower power with dapm */
506static int wm8510_set_bias_level(struct snd_soc_codec *codec,
507 enum snd_soc_bias_level level)
508{
509 struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
510 u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
511
512 switch (level) {
513 case SND_SOC_BIAS_ON:
514 case SND_SOC_BIAS_PREPARE:
515 power1 |= 0x1; /* VMID 50k */
516 snd_soc_write(codec, WM8510_POWER1, power1);
517 break;
518
519 case SND_SOC_BIAS_STANDBY:
520 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
521
522 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
523 regcache_sync(wm8510->regmap);
524
525 /* Initial cap charge at VMID 5k */
526 snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
527 mdelay(100);
528 }
529
530 power1 |= 0x2; /* VMID 500k */
531 snd_soc_write(codec, WM8510_POWER1, power1);
532 break;
533
534 case SND_SOC_BIAS_OFF:
535 snd_soc_write(codec, WM8510_POWER1, 0);
536 snd_soc_write(codec, WM8510_POWER2, 0);
537 snd_soc_write(codec, WM8510_POWER3, 0);
538 break;
539 }
540
541 return 0;
542}
543
544#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
545 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
546 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
547
548#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
549 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
550
551static const struct snd_soc_dai_ops wm8510_dai_ops = {
552 .hw_params = wm8510_pcm_hw_params,
553 .digital_mute = wm8510_mute,
554 .set_fmt = wm8510_set_dai_fmt,
555 .set_clkdiv = wm8510_set_dai_clkdiv,
556 .set_pll = wm8510_set_dai_pll,
557};
558
559static struct snd_soc_dai_driver wm8510_dai = {
560 .name = "wm8510-hifi",
561 .playback = {
562 .stream_name = "Playback",
563 .channels_min = 2,
564 .channels_max = 2,
565 .rates = WM8510_RATES,
566 .formats = WM8510_FORMATS,},
567 .capture = {
568 .stream_name = "Capture",
569 .channels_min = 2,
570 .channels_max = 2,
571 .rates = WM8510_RATES,
572 .formats = WM8510_FORMATS,},
573 .ops = &wm8510_dai_ops,
574 .symmetric_rates = 1,
575};
576
577static int wm8510_probe(struct snd_soc_codec *codec)
578{
579 wm8510_reset(codec);
580
581 return 0;
582}
583
584static const struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
585 .probe = wm8510_probe,
586 .set_bias_level = wm8510_set_bias_level,
587 .suspend_bias_off = true,
588
589 .component_driver = {
590 .controls = wm8510_snd_controls,
591 .num_controls = ARRAY_SIZE(wm8510_snd_controls),
592 .dapm_widgets = wm8510_dapm_widgets,
593 .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
594 .dapm_routes = wm8510_dapm_routes,
595 .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
596 },
597};
598
599static const struct of_device_id wm8510_of_match[] = {
600 { .compatible = "wlf,wm8510" },
601 { },
602};
603MODULE_DEVICE_TABLE(of, wm8510_of_match);
604
605static const struct regmap_config wm8510_regmap = {
606 .reg_bits = 7,
607 .val_bits = 9,
608 .max_register = WM8510_MONOMIX,
609
610 .reg_defaults = wm8510_reg_defaults,
611 .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
612 .cache_type = REGCACHE_RBTREE,
613
614 .volatile_reg = wm8510_volatile,
615};
616
617#if defined(CONFIG_SPI_MASTER)
618static int wm8510_spi_probe(struct spi_device *spi)
619{
620 struct wm8510_priv *wm8510;
621 int ret;
622
623 wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
624 GFP_KERNEL);
625 if (wm8510 == NULL)
626 return -ENOMEM;
627
628 wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
629 if (IS_ERR(wm8510->regmap))
630 return PTR_ERR(wm8510->regmap);
631
632 spi_set_drvdata(spi, wm8510);
633
634 ret = snd_soc_register_codec(&spi->dev,
635 &soc_codec_dev_wm8510, &wm8510_dai, 1);
636
637 return ret;
638}
639
640static int wm8510_spi_remove(struct spi_device *spi)
641{
642 snd_soc_unregister_codec(&spi->dev);
643 return 0;
644}
645
646static struct spi_driver wm8510_spi_driver = {
647 .driver = {
648 .name = "wm8510",
649 .of_match_table = wm8510_of_match,
650 },
651 .probe = wm8510_spi_probe,
652 .remove = wm8510_spi_remove,
653};
654#endif /* CONFIG_SPI_MASTER */
655
656#if IS_ENABLED(CONFIG_I2C)
657static int wm8510_i2c_probe(struct i2c_client *i2c,
658 const struct i2c_device_id *id)
659{
660 struct wm8510_priv *wm8510;
661 int ret;
662
663 wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
664 GFP_KERNEL);
665 if (wm8510 == NULL)
666 return -ENOMEM;
667
668 wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
669 if (IS_ERR(wm8510->regmap))
670 return PTR_ERR(wm8510->regmap);
671
672 i2c_set_clientdata(i2c, wm8510);
673
674 ret = snd_soc_register_codec(&i2c->dev,
675 &soc_codec_dev_wm8510, &wm8510_dai, 1);
676
677 return ret;
678}
679
680static int wm8510_i2c_remove(struct i2c_client *client)
681{
682 snd_soc_unregister_codec(&client->dev);
683 return 0;
684}
685
686static const struct i2c_device_id wm8510_i2c_id[] = {
687 { "wm8510", 0 },
688 { }
689};
690MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
691
692static struct i2c_driver wm8510_i2c_driver = {
693 .driver = {
694 .name = "wm8510",
695 .of_match_table = wm8510_of_match,
696 },
697 .probe = wm8510_i2c_probe,
698 .remove = wm8510_i2c_remove,
699 .id_table = wm8510_i2c_id,
700};
701#endif
702
703static int __init wm8510_modinit(void)
704{
705 int ret = 0;
706#if IS_ENABLED(CONFIG_I2C)
707 ret = i2c_add_driver(&wm8510_i2c_driver);
708 if (ret != 0) {
709 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
710 ret);
711 }
712#endif
713#if defined(CONFIG_SPI_MASTER)
714 ret = spi_register_driver(&wm8510_spi_driver);
715 if (ret != 0) {
716 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
717 ret);
718 }
719#endif
720 return ret;
721}
722module_init(wm8510_modinit);
723
724static void __exit wm8510_exit(void)
725{
726#if IS_ENABLED(CONFIG_I2C)
727 i2c_del_driver(&wm8510_i2c_driver);
728#endif
729#if defined(CONFIG_SPI_MASTER)
730 spi_unregister_driver(&wm8510_spi_driver);
731#endif
732}
733module_exit(wm8510_exit);
734
735MODULE_DESCRIPTION("ASoC WM8510 driver");
736MODULE_AUTHOR("Liam Girdwood");
737MODULE_LICENSE("GPL");