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30984dd15c4878dbbd41f4fe5e03a44b050a1fd7
[deliverable/linux.git] / sound / soc / codecs / wm8962.c
1 /*
2 * wm8962.c -- WM8962 ALSA SoC Audio driver
3 *
4 * Copyright 2010 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
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/gcd.h>
20 #include <linux/i2c.h>
21 #include <linux/input.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/slab.h>
25 #include <linux/workqueue.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/soc-dapm.h>
31 #include <sound/initval.h>
32 #include <sound/tlv.h>
33 #include <sound/wm8962.h>
34
35 #include "wm8962.h"
36
37 #define WM8962_NUM_SUPPLIES 8
38 static const char *wm8962_supply_names[WM8962_NUM_SUPPLIES] = {
39 "DCVDD",
40 "DBVDD",
41 "AVDD",
42 "CPVDD",
43 "MICVDD",
44 "PLLVDD",
45 "SPKVDD1",
46 "SPKVDD2",
47 };
48
49 /* codec private data */
50 struct wm8962_priv {
51 struct snd_soc_codec *codec;
52
53 u16 reg_cache[WM8962_MAX_REGISTER + 1];
54
55 int sysclk;
56 int sysclk_rate;
57
58 int bclk; /* Desired BCLK */
59 int lrclk;
60
61 int fll_src;
62 int fll_fref;
63 int fll_fout;
64
65 struct regulator_bulk_data supplies[WM8962_NUM_SUPPLIES];
66 struct notifier_block disable_nb[WM8962_NUM_SUPPLIES];
67
68 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
69 struct input_dev *beep;
70 struct work_struct beep_work;
71 int beep_rate;
72 #endif
73 };
74
75 /* We can't use the same notifier block for more than one supply and
76 * there's no way I can see to get from a callback to the caller
77 * except container_of().
78 */
79 #define WM8962_REGULATOR_EVENT(n) \
80 static int wm8962_regulator_event_##n(struct notifier_block *nb, \
81 unsigned long event, void *data) \
82 { \
83 struct wm8962_priv *wm8962 = container_of(nb, struct wm8962_priv, \
84 disable_nb[n]); \
85 if (event & REGULATOR_EVENT_DISABLE) { \
86 wm8962->codec->cache_sync = 1; \
87 } \
88 return 0; \
89 }
90
91 WM8962_REGULATOR_EVENT(0)
92 WM8962_REGULATOR_EVENT(1)
93 WM8962_REGULATOR_EVENT(2)
94 WM8962_REGULATOR_EVENT(3)
95 WM8962_REGULATOR_EVENT(4)
96 WM8962_REGULATOR_EVENT(5)
97 WM8962_REGULATOR_EVENT(6)
98 WM8962_REGULATOR_EVENT(7)
99
100 static int wm8962_volatile_register(unsigned int reg)
101 {
102 if (wm8962_reg_access[reg].vol)
103 return 1;
104 else
105 return 0;
106 }
107
108 static int wm8962_readable_register(unsigned int reg)
109 {
110 if (wm8962_reg_access[reg].read)
111 return 1;
112 else
113 return 0;
114 }
115
116 static int wm8962_reset(struct snd_soc_codec *codec)
117 {
118 return snd_soc_write(codec, WM8962_SOFTWARE_RESET, 0);
119 }
120
121 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -2325, 75, 0);
122 static const DECLARE_TLV_DB_SCALE(mixin_tlv, -1500, 300, 0);
123 static const unsigned int mixinpga_tlv[] = {
124 TLV_DB_RANGE_HEAD(7),
125 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
126 2, 2, TLV_DB_SCALE_ITEM(1300, 1300, 0),
127 3, 4, TLV_DB_SCALE_ITEM(1800, 200, 0),
128 5, 5, TLV_DB_SCALE_ITEM(2400, 0, 0),
129 6, 7, TLV_DB_SCALE_ITEM(2700, 300, 0),
130 };
131 static const DECLARE_TLV_DB_SCALE(beep_tlv, -9600, 600, 1);
132 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
133 static const DECLARE_TLV_DB_SCALE(st_tlv, -3600, 300, 0);
134 static const DECLARE_TLV_DB_SCALE(inmix_tlv, -600, 600, 0);
135 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
136 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
137 static const DECLARE_TLV_DB_SCALE(hp_tlv, -700, 100, 0);
138 static const unsigned int classd_tlv[] = {
139 TLV_DB_RANGE_HEAD(7),
140 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
141 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
142 };
143
144 /* The VU bits for the headphones are in a different register to the mute
145 * bits and only take effect on the PGA if it is actually powered.
146 */
147 static int wm8962_put_hp_sw(struct snd_kcontrol *kcontrol,
148 struct snd_ctl_elem_value *ucontrol)
149 {
150 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
151 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
152 u16 *reg_cache = wm8962->reg_cache;
153 int ret;
154
155 /* Apply the update (if any) */
156 ret = snd_soc_put_volsw(kcontrol, ucontrol);
157 if (ret == 0)
158 return 0;
159
160 /* If the left PGA is enabled hit that VU bit... */
161 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_HPOUTL_PGA_ENA)
162 return snd_soc_write(codec, WM8962_HPOUTL_VOLUME,
163 reg_cache[WM8962_HPOUTL_VOLUME]);
164
165 /* ...otherwise the right. The VU is stereo. */
166 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_HPOUTR_PGA_ENA)
167 return snd_soc_write(codec, WM8962_HPOUTR_VOLUME,
168 reg_cache[WM8962_HPOUTR_VOLUME]);
169
170 return 0;
171 }
172
173 /* The VU bits for the speakers are in a different register to the mute
174 * bits and only take effect on the PGA if it is actually powered.
175 */
176 static int wm8962_put_spk_sw(struct snd_kcontrol *kcontrol,
177 struct snd_ctl_elem_value *ucontrol)
178 {
179 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
180 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
181 u16 *reg_cache = wm8962->reg_cache;
182 int ret;
183
184 /* Apply the update (if any) */
185 ret = snd_soc_put_volsw(kcontrol, ucontrol);
186 if (ret == 0)
187 return 0;
188
189 /* If the left PGA is enabled hit that VU bit... */
190 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_SPKOUTL_PGA_ENA)
191 return snd_soc_write(codec, WM8962_SPKOUTL_VOLUME,
192 reg_cache[WM8962_SPKOUTL_VOLUME]);
193
194 /* ...otherwise the right. The VU is stereo. */
195 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_SPKOUTR_PGA_ENA)
196 return snd_soc_write(codec, WM8962_SPKOUTR_VOLUME,
197 reg_cache[WM8962_SPKOUTR_VOLUME]);
198
199 return 0;
200 }
201
202 static const struct snd_kcontrol_new wm8962_snd_controls[] = {
203 SOC_DOUBLE("Input Mixer Switch", WM8962_INPUT_MIXER_CONTROL_1, 3, 2, 1, 1),
204
205 SOC_SINGLE_TLV("MIXINL IN2L Volume", WM8962_LEFT_INPUT_MIXER_VOLUME, 6, 7, 0,
206 mixin_tlv),
207 SOC_SINGLE_TLV("MIXINL PGA Volume", WM8962_LEFT_INPUT_MIXER_VOLUME, 3, 7, 0,
208 mixinpga_tlv),
209 SOC_SINGLE_TLV("MIXINL IN3L Volume", WM8962_LEFT_INPUT_MIXER_VOLUME, 0, 7, 0,
210 mixin_tlv),
211
212 SOC_SINGLE_TLV("MIXINR IN2R Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME, 6, 7, 0,
213 mixin_tlv),
214 SOC_SINGLE_TLV("MIXINR PGA Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME, 3, 7, 0,
215 mixinpga_tlv),
216 SOC_SINGLE_TLV("MIXINR IN3R Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME, 0, 7, 0,
217 mixin_tlv),
218
219 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8962_LEFT_ADC_VOLUME,
220 WM8962_RIGHT_ADC_VOLUME, 1, 127, 0, digital_tlv),
221 SOC_DOUBLE_R_TLV("Capture Volume", WM8962_LEFT_INPUT_VOLUME,
222 WM8962_RIGHT_INPUT_VOLUME, 0, 63, 0, inpga_tlv),
223 SOC_DOUBLE_R("Capture Switch", WM8962_LEFT_INPUT_VOLUME,
224 WM8962_RIGHT_INPUT_VOLUME, 7, 1, 1),
225 SOC_DOUBLE_R("Capture ZC Switch", WM8962_LEFT_INPUT_VOLUME,
226 WM8962_RIGHT_INPUT_VOLUME, 6, 1, 1),
227
228 SOC_DOUBLE_R_TLV("Sidetone Volume", WM8962_DAC_DSP_MIXING_1,
229 WM8962_DAC_DSP_MIXING_2, 4, 12, 0, st_tlv),
230
231 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8962_LEFT_DAC_VOLUME,
232 WM8962_RIGHT_DAC_VOLUME, 1, 127, 0, digital_tlv),
233 SOC_SINGLE("DAC High Performance Switch", WM8962_ADC_DAC_CONTROL_2, 0, 1, 0),
234
235 SOC_SINGLE("ADC High Performance Switch", WM8962_ADDITIONAL_CONTROL_1,
236 5, 1, 0),
237
238 SOC_SINGLE_TLV("Beep Volume", WM8962_BEEP_GENERATOR_1, 4, 15, 0, beep_tlv),
239
240 SOC_DOUBLE_R_TLV("Headphone Volume", WM8962_HPOUTL_VOLUME,
241 WM8962_HPOUTR_VOLUME, 0, 127, 0, out_tlv),
242 SOC_DOUBLE_EXT("Headphone Switch", WM8962_PWR_MGMT_2, 1, 0, 1, 1,
243 snd_soc_get_volsw, wm8962_put_hp_sw),
244 SOC_DOUBLE_R("Headphone ZC Switch", WM8962_HPOUTL_VOLUME, WM8962_HPOUTR_VOLUME,
245 7, 1, 0),
246 SOC_DOUBLE_TLV("Headphone Aux Volume", WM8962_ANALOGUE_HP_2, 3, 6, 7, 0,
247 hp_tlv),
248
249 SOC_DOUBLE_R("Headphone Mixer Switch", WM8962_HEADPHONE_MIXER_3,
250 WM8962_HEADPHONE_MIXER_4, 8, 1, 1),
251
252 SOC_SINGLE_TLV("HPMIXL IN4L Volume", WM8962_HEADPHONE_MIXER_3,
253 3, 7, 0, bypass_tlv),
254 SOC_SINGLE_TLV("HPMIXL IN4R Volume", WM8962_HEADPHONE_MIXER_3,
255 0, 7, 0, bypass_tlv),
256 SOC_SINGLE_TLV("HPMIXL MIXINL Volume", WM8962_HEADPHONE_MIXER_3,
257 7, 1, 1, inmix_tlv),
258 SOC_SINGLE_TLV("HPMIXL MIXINR Volume", WM8962_HEADPHONE_MIXER_3,
259 6, 1, 1, inmix_tlv),
260
261 SOC_SINGLE_TLV("HPMIXR IN4L Volume", WM8962_HEADPHONE_MIXER_4,
262 3, 7, 0, bypass_tlv),
263 SOC_SINGLE_TLV("HPMIXR IN4R Volume", WM8962_HEADPHONE_MIXER_4,
264 0, 7, 0, bypass_tlv),
265 SOC_SINGLE_TLV("HPMIXR MIXINL Volume", WM8962_HEADPHONE_MIXER_4,
266 7, 1, 1, inmix_tlv),
267 SOC_SINGLE_TLV("HPMIXR MIXINR Volume", WM8962_HEADPHONE_MIXER_4,
268 6, 1, 1, inmix_tlv),
269
270 SOC_SINGLE_TLV("Speaker Boost Volume", WM8962_CLASS_D_CONTROL_2, 0, 7, 0,
271 classd_tlv),
272 };
273
274 static const struct snd_kcontrol_new wm8962_spk_mono_controls[] = {
275 SOC_SINGLE_TLV("Speaker Volume", WM8962_SPKOUTL_VOLUME, 0, 127, 0, out_tlv),
276 SOC_SINGLE_EXT("Speaker Switch", WM8962_CLASS_D_CONTROL_1, 1, 1, 1,
277 snd_soc_get_volsw, wm8962_put_spk_sw),
278 SOC_SINGLE("Speaker ZC Switch", WM8962_SPKOUTL_VOLUME, 7, 1, 0),
279
280 SOC_SINGLE("Speaker Mixer Switch", WM8962_SPEAKER_MIXER_3, 8, 1, 1),
281 SOC_SINGLE_TLV("Speaker Mixer IN4L Volume", WM8962_SPEAKER_MIXER_3,
282 3, 7, 0, bypass_tlv),
283 SOC_SINGLE_TLV("Speaker Mixer IN4R Volume", WM8962_SPEAKER_MIXER_3,
284 0, 7, 0, bypass_tlv),
285 SOC_SINGLE_TLV("Speaker Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_3,
286 7, 1, 1, inmix_tlv),
287 SOC_SINGLE_TLV("Speaker Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_3,
288 6, 1, 1, inmix_tlv),
289 SOC_SINGLE_TLV("Speaker Mixer DACL Volume", WM8962_SPEAKER_MIXER_5,
290 7, 1, 0, inmix_tlv),
291 SOC_SINGLE_TLV("Speaker Mixer DACR Volume", WM8962_SPEAKER_MIXER_5,
292 6, 1, 0, inmix_tlv),
293 };
294
295 static const struct snd_kcontrol_new wm8962_spk_stereo_controls[] = {
296 SOC_DOUBLE_R_TLV("Speaker Volume", WM8962_SPKOUTL_VOLUME,
297 WM8962_SPKOUTR_VOLUME, 0, 127, 0, out_tlv),
298 SOC_DOUBLE_EXT("Speaker Switch", WM8962_CLASS_D_CONTROL_1, 1, 0, 1, 1,
299 snd_soc_get_volsw, wm8962_put_spk_sw),
300 SOC_DOUBLE_R("Speaker ZC Switch", WM8962_SPKOUTL_VOLUME, WM8962_SPKOUTR_VOLUME,
301 7, 1, 0),
302
303 SOC_DOUBLE_R("Speaker Mixer Switch", WM8962_SPEAKER_MIXER_3,
304 WM8962_SPEAKER_MIXER_4, 8, 1, 1),
305
306 SOC_SINGLE_TLV("SPKOUTL Mixer IN4L Volume", WM8962_SPEAKER_MIXER_3,
307 3, 7, 0, bypass_tlv),
308 SOC_SINGLE_TLV("SPKOUTL Mixer IN4R Volume", WM8962_SPEAKER_MIXER_3,
309 0, 7, 0, bypass_tlv),
310 SOC_SINGLE_TLV("SPKOUTL Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_3,
311 7, 1, 1, inmix_tlv),
312 SOC_SINGLE_TLV("SPKOUTL Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_3,
313 6, 1, 1, inmix_tlv),
314 SOC_SINGLE_TLV("SPKOUTL Mixer DACL Volume", WM8962_SPEAKER_MIXER_5,
315 7, 1, 0, inmix_tlv),
316 SOC_SINGLE_TLV("SPKOUTL Mixer DACR Volume", WM8962_SPEAKER_MIXER_5,
317 6, 1, 0, inmix_tlv),
318
319 SOC_SINGLE_TLV("SPKOUTR Mixer IN4L Volume", WM8962_SPEAKER_MIXER_4,
320 3, 7, 0, bypass_tlv),
321 SOC_SINGLE_TLV("SPKOUTR Mixer IN4R Volume", WM8962_SPEAKER_MIXER_4,
322 0, 7, 0, bypass_tlv),
323 SOC_SINGLE_TLV("SPKOUTR Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_4,
324 7, 1, 1, inmix_tlv),
325 SOC_SINGLE_TLV("SPKOUTR Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_4,
326 6, 1, 1, inmix_tlv),
327 SOC_SINGLE_TLV("SPKOUTR Mixer DACL Volume", WM8962_SPEAKER_MIXER_5,
328 5, 1, 0, inmix_tlv),
329 SOC_SINGLE_TLV("SPKOUTR Mixer DACR Volume", WM8962_SPEAKER_MIXER_5,
330 4, 1, 0, inmix_tlv),
331 };
332
333 static int sysclk_event(struct snd_soc_dapm_widget *w,
334 struct snd_kcontrol *kcontrol, int event)
335 {
336 struct snd_soc_codec *codec = w->codec;
337 int src;
338 int fll;
339
340 src = snd_soc_read(codec, WM8962_CLOCKING2) & WM8962_SYSCLK_SRC_MASK;
341
342 switch (src) {
343 case 0: /* MCLK */
344 fll = 0;
345 break;
346 case 0x200: /* FLL */
347 fll = 1;
348 break;
349 default:
350 dev_err(codec->dev, "Unknown SYSCLK source %x\n", src);
351 return -EINVAL;
352 }
353
354 switch (event) {
355 case SND_SOC_DAPM_PRE_PMU:
356 if (fll)
357 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
358 WM8962_FLL_ENA, WM8962_FLL_ENA);
359 break;
360
361 case SND_SOC_DAPM_POST_PMD:
362 if (fll)
363 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
364 WM8962_FLL_ENA, 0);
365 break;
366
367 default:
368 BUG();
369 return -EINVAL;
370 }
371
372 return 0;
373 }
374
375 static int cp_event(struct snd_soc_dapm_widget *w,
376 struct snd_kcontrol *kcontrol, int event)
377 {
378 switch (event) {
379 case SND_SOC_DAPM_POST_PMU:
380 msleep(5);
381 break;
382
383 default:
384 BUG();
385 return -EINVAL;
386 }
387
388 return 0;
389 }
390
391 static int hp_event(struct snd_soc_dapm_widget *w,
392 struct snd_kcontrol *kcontrol, int event)
393 {
394 struct snd_soc_codec *codec = w->codec;
395 int timeout;
396 int reg;
397 int expected = (WM8962_DCS_STARTUP_DONE_HP1L |
398 WM8962_DCS_STARTUP_DONE_HP1R);
399
400 switch (event) {
401 case SND_SOC_DAPM_POST_PMU:
402 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
403 WM8962_HP1L_ENA | WM8962_HP1R_ENA,
404 WM8962_HP1L_ENA | WM8962_HP1R_ENA);
405 udelay(20);
406
407 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
408 WM8962_HP1L_ENA_DLY | WM8962_HP1R_ENA_DLY,
409 WM8962_HP1L_ENA_DLY | WM8962_HP1R_ENA_DLY);
410
411 /* Start the DC servo */
412 snd_soc_update_bits(codec, WM8962_DC_SERVO_1,
413 WM8962_HP1L_DCS_ENA | WM8962_HP1R_DCS_ENA |
414 WM8962_HP1L_DCS_STARTUP |
415 WM8962_HP1R_DCS_STARTUP,
416 WM8962_HP1L_DCS_ENA | WM8962_HP1R_DCS_ENA |
417 WM8962_HP1L_DCS_STARTUP |
418 WM8962_HP1R_DCS_STARTUP);
419
420 /* Wait for it to complete, should be well under 100ms */
421 timeout = 0;
422 do {
423 msleep(1);
424 reg = snd_soc_read(codec, WM8962_DC_SERVO_6);
425 if (reg < 0) {
426 dev_err(codec->dev,
427 "Failed to read DCS status: %d\n",
428 reg);
429 continue;
430 }
431 dev_dbg(codec->dev, "DCS status: %x\n", reg);
432 } while (++timeout < 200 && (reg & expected) != expected);
433
434 if ((reg & expected) != expected)
435 dev_err(codec->dev, "DC servo timed out\n");
436 else
437 dev_dbg(codec->dev, "DC servo complete after %dms\n",
438 timeout);
439
440 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
441 WM8962_HP1L_ENA_OUTP |
442 WM8962_HP1R_ENA_OUTP,
443 WM8962_HP1L_ENA_OUTP |
444 WM8962_HP1R_ENA_OUTP);
445 udelay(20);
446
447 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
448 WM8962_HP1L_RMV_SHORT |
449 WM8962_HP1R_RMV_SHORT,
450 WM8962_HP1L_RMV_SHORT |
451 WM8962_HP1R_RMV_SHORT);
452 break;
453
454 case SND_SOC_DAPM_PRE_PMD:
455 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
456 WM8962_HP1L_RMV_SHORT |
457 WM8962_HP1R_RMV_SHORT, 0);
458
459 udelay(20);
460
461 snd_soc_update_bits(codec, WM8962_DC_SERVO_1,
462 WM8962_HP1L_DCS_ENA | WM8962_HP1R_DCS_ENA |
463 WM8962_HP1L_DCS_STARTUP |
464 WM8962_HP1R_DCS_STARTUP,
465 0);
466
467 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
468 WM8962_HP1L_ENA | WM8962_HP1R_ENA |
469 WM8962_HP1L_ENA_DLY | WM8962_HP1R_ENA_DLY |
470 WM8962_HP1L_ENA_OUTP |
471 WM8962_HP1R_ENA_OUTP, 0);
472
473 break;
474
475 default:
476 BUG();
477 return -EINVAL;
478
479 }
480
481 return 0;
482 }
483
484 /* VU bits for the output PGAs only take effect while the PGA is powered */
485 static int out_pga_event(struct snd_soc_dapm_widget *w,
486 struct snd_kcontrol *kcontrol, int event)
487 {
488 struct snd_soc_codec *codec = w->codec;
489 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
490 u16 *reg_cache = wm8962->reg_cache;
491 int reg;
492
493 switch (w->shift) {
494 case WM8962_HPOUTR_PGA_ENA_SHIFT:
495 reg = WM8962_HPOUTR_VOLUME;
496 break;
497 case WM8962_HPOUTL_PGA_ENA_SHIFT:
498 reg = WM8962_HPOUTL_VOLUME;
499 break;
500 case WM8962_SPKOUTR_PGA_ENA_SHIFT:
501 reg = WM8962_SPKOUTR_VOLUME;
502 break;
503 case WM8962_SPKOUTL_PGA_ENA_SHIFT:
504 reg = WM8962_SPKOUTL_VOLUME;
505 break;
506 default:
507 BUG();
508 return -EINVAL;
509 }
510
511 switch (event) {
512 case SND_SOC_DAPM_POST_PMU:
513 return snd_soc_write(codec, reg, reg_cache[reg]);
514 default:
515 BUG();
516 return -EINVAL;
517 }
518 }
519
520 static const char *st_text[] = { "None", "Right", "Left" };
521
522 static const struct soc_enum str_enum =
523 SOC_ENUM_SINGLE(WM8962_DAC_DSP_MIXING_1, 2, 3, st_text);
524
525 static const struct snd_kcontrol_new str_mux =
526 SOC_DAPM_ENUM("Right Sidetone", str_enum);
527
528 static const struct soc_enum stl_enum =
529 SOC_ENUM_SINGLE(WM8962_DAC_DSP_MIXING_2, 2, 3, st_text);
530
531 static const struct snd_kcontrol_new stl_mux =
532 SOC_DAPM_ENUM("Left Sidetone", stl_enum);
533
534 static const char *outmux_text[] = { "DAC", "Mixer" };
535
536 static const struct soc_enum spkoutr_enum =
537 SOC_ENUM_SINGLE(WM8962_SPEAKER_MIXER_2, 7, 2, outmux_text);
538
539 static const struct snd_kcontrol_new spkoutr_mux =
540 SOC_DAPM_ENUM("SPKOUTR Mux", spkoutr_enum);
541
542 static const struct soc_enum spkoutl_enum =
543 SOC_ENUM_SINGLE(WM8962_SPEAKER_MIXER_1, 7, 2, outmux_text);
544
545 static const struct snd_kcontrol_new spkoutl_mux =
546 SOC_DAPM_ENUM("SPKOUTL Mux", spkoutl_enum);
547
548 static const struct soc_enum hpoutr_enum =
549 SOC_ENUM_SINGLE(WM8962_HEADPHONE_MIXER_2, 7, 2, outmux_text);
550
551 static const struct snd_kcontrol_new hpoutr_mux =
552 SOC_DAPM_ENUM("HPOUTR Mux", hpoutr_enum);
553
554 static const struct soc_enum hpoutl_enum =
555 SOC_ENUM_SINGLE(WM8962_HEADPHONE_MIXER_1, 7, 2, outmux_text);
556
557 static const struct snd_kcontrol_new hpoutl_mux =
558 SOC_DAPM_ENUM("HPOUTL Mux", hpoutl_enum);
559
560 static const struct snd_kcontrol_new inpgal[] = {
561 SOC_DAPM_SINGLE("IN1L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 3, 1, 0),
562 SOC_DAPM_SINGLE("IN2L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 2, 1, 0),
563 SOC_DAPM_SINGLE("IN3L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 1, 1, 0),
564 SOC_DAPM_SINGLE("IN4L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 0, 1, 0),
565 };
566
567 static const struct snd_kcontrol_new inpgar[] = {
568 SOC_DAPM_SINGLE("IN1R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 3, 1, 0),
569 SOC_DAPM_SINGLE("IN2R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 2, 1, 0),
570 SOC_DAPM_SINGLE("IN3R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 1, 1, 0),
571 SOC_DAPM_SINGLE("IN4R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 0, 1, 0),
572 };
573
574 static const struct snd_kcontrol_new mixinl[] = {
575 SOC_DAPM_SINGLE("IN2L Switch", WM8962_INPUT_MIXER_CONTROL_2, 5, 1, 0),
576 SOC_DAPM_SINGLE("IN3L Switch", WM8962_INPUT_MIXER_CONTROL_2, 4, 1, 0),
577 SOC_DAPM_SINGLE("PGA Switch", WM8962_INPUT_MIXER_CONTROL_2, 3, 1, 0),
578 };
579
580 static const struct snd_kcontrol_new mixinr[] = {
581 SOC_DAPM_SINGLE("IN2R Switch", WM8962_INPUT_MIXER_CONTROL_2, 2, 1, 0),
582 SOC_DAPM_SINGLE("IN3R Switch", WM8962_INPUT_MIXER_CONTROL_2, 1, 1, 0),
583 SOC_DAPM_SINGLE("PGA Switch", WM8962_INPUT_MIXER_CONTROL_2, 0, 1, 0),
584 };
585
586 static const struct snd_kcontrol_new hpmixl[] = {
587 SOC_DAPM_SINGLE("DACL Switch", WM8962_HEADPHONE_MIXER_1, 5, 1, 0),
588 SOC_DAPM_SINGLE("DACR Switch", WM8962_HEADPHONE_MIXER_1, 4, 1, 0),
589 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_HEADPHONE_MIXER_1, 3, 1, 0),
590 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_HEADPHONE_MIXER_1, 2, 1, 0),
591 SOC_DAPM_SINGLE("IN4L Switch", WM8962_HEADPHONE_MIXER_1, 1, 1, 0),
592 SOC_DAPM_SINGLE("IN4R Switch", WM8962_HEADPHONE_MIXER_1, 0, 1, 0),
593 };
594
595 static const struct snd_kcontrol_new hpmixr[] = {
596 SOC_DAPM_SINGLE("DACL Switch", WM8962_HEADPHONE_MIXER_2, 5, 1, 0),
597 SOC_DAPM_SINGLE("DACR Switch", WM8962_HEADPHONE_MIXER_2, 4, 1, 0),
598 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_HEADPHONE_MIXER_2, 3, 1, 0),
599 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_HEADPHONE_MIXER_2, 2, 1, 0),
600 SOC_DAPM_SINGLE("IN4L Switch", WM8962_HEADPHONE_MIXER_2, 1, 1, 0),
601 SOC_DAPM_SINGLE("IN4R Switch", WM8962_HEADPHONE_MIXER_2, 0, 1, 0),
602 };
603
604 static const struct snd_kcontrol_new spkmixl[] = {
605 SOC_DAPM_SINGLE("DACL Switch", WM8962_SPEAKER_MIXER_1, 5, 1, 0),
606 SOC_DAPM_SINGLE("DACR Switch", WM8962_SPEAKER_MIXER_1, 4, 1, 0),
607 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_SPEAKER_MIXER_1, 3, 1, 0),
608 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_SPEAKER_MIXER_1, 2, 1, 0),
609 SOC_DAPM_SINGLE("IN4L Switch", WM8962_SPEAKER_MIXER_1, 1, 1, 0),
610 SOC_DAPM_SINGLE("IN4R Switch", WM8962_SPEAKER_MIXER_1, 0, 1, 0),
611 };
612
613 static const struct snd_kcontrol_new spkmixr[] = {
614 SOC_DAPM_SINGLE("DACL Switch", WM8962_SPEAKER_MIXER_2, 5, 1, 0),
615 SOC_DAPM_SINGLE("DACR Switch", WM8962_SPEAKER_MIXER_2, 4, 1, 0),
616 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_SPEAKER_MIXER_2, 3, 1, 0),
617 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_SPEAKER_MIXER_2, 2, 1, 0),
618 SOC_DAPM_SINGLE("IN4L Switch", WM8962_SPEAKER_MIXER_2, 1, 1, 0),
619 SOC_DAPM_SINGLE("IN4R Switch", WM8962_SPEAKER_MIXER_2, 0, 1, 0),
620 };
621
622 static const struct snd_soc_dapm_widget wm8962_dapm_widgets[] = {
623 SND_SOC_DAPM_INPUT("IN1L"),
624 SND_SOC_DAPM_INPUT("IN1R"),
625 SND_SOC_DAPM_INPUT("IN2L"),
626 SND_SOC_DAPM_INPUT("IN2R"),
627 SND_SOC_DAPM_INPUT("IN3L"),
628 SND_SOC_DAPM_INPUT("IN3R"),
629 SND_SOC_DAPM_INPUT("IN4L"),
630 SND_SOC_DAPM_INPUT("IN4R"),
631 SND_SOC_DAPM_INPUT("Beep"),
632
633 SND_SOC_DAPM_SUPPLY("Class G", WM8962_CHARGE_PUMP_B, 0, 1, NULL, 0),
634 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, sysclk_event,
635 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
636 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8962_CHARGE_PUMP_1, 0, 0, cp_event,
637 SND_SOC_DAPM_POST_PMU),
638 SND_SOC_DAPM_SUPPLY("TOCLK", WM8962_ADDITIONAL_CONTROL_1, 0, 0, NULL, 0),
639
640 SND_SOC_DAPM_MIXER("INPGAL", WM8962_LEFT_INPUT_PGA_CONTROL, 4, 0,
641 inpgal, ARRAY_SIZE(inpgal)),
642 SND_SOC_DAPM_MIXER("INPGAR", WM8962_RIGHT_INPUT_PGA_CONTROL, 4, 0,
643 inpgar, ARRAY_SIZE(inpgar)),
644 SND_SOC_DAPM_MIXER("MIXINL", WM8962_PWR_MGMT_1, 5, 0,
645 mixinl, ARRAY_SIZE(mixinl)),
646 SND_SOC_DAPM_MIXER("MIXINR", WM8962_PWR_MGMT_1, 4, 0,
647 mixinr, ARRAY_SIZE(mixinr)),
648
649 SND_SOC_DAPM_ADC("ADCL", "Capture", WM8962_PWR_MGMT_1, 3, 0),
650 SND_SOC_DAPM_ADC("ADCR", "Capture", WM8962_PWR_MGMT_1, 2, 0),
651
652 SND_SOC_DAPM_MUX("STL", SND_SOC_NOPM, 0, 0, &stl_mux),
653 SND_SOC_DAPM_MUX("STR", SND_SOC_NOPM, 0, 0, &str_mux),
654
655 SND_SOC_DAPM_DAC("DACL", "Playback", WM8962_PWR_MGMT_2, 8, 0),
656 SND_SOC_DAPM_DAC("DACR", "Playback", WM8962_PWR_MGMT_2, 7, 0),
657
658 SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
659 SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
660
661 SND_SOC_DAPM_MIXER("HPMIXL", WM8962_MIXER_ENABLES, 3, 0,
662 hpmixl, ARRAY_SIZE(hpmixl)),
663 SND_SOC_DAPM_MIXER("HPMIXR", WM8962_MIXER_ENABLES, 2, 0,
664 hpmixr, ARRAY_SIZE(hpmixr)),
665
666 SND_SOC_DAPM_MUX_E("HPOUTL PGA", WM8962_PWR_MGMT_2, 6, 0, &hpoutl_mux,
667 out_pga_event, SND_SOC_DAPM_POST_PMU),
668 SND_SOC_DAPM_MUX_E("HPOUTR PGA", WM8962_PWR_MGMT_2, 5, 0, &hpoutr_mux,
669 out_pga_event, SND_SOC_DAPM_POST_PMU),
670
671 SND_SOC_DAPM_PGA_E("HPOUT", SND_SOC_NOPM, 0, 0, NULL, 0, hp_event,
672 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
673
674 SND_SOC_DAPM_OUTPUT("HPOUTL"),
675 SND_SOC_DAPM_OUTPUT("HPOUTR"),
676 };
677
678 static const struct snd_soc_dapm_widget wm8962_dapm_spk_mono_widgets[] = {
679 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8962_MIXER_ENABLES, 1, 0,
680 spkmixl, ARRAY_SIZE(spkmixl)),
681 SND_SOC_DAPM_MUX_E("Speaker PGA", WM8962_PWR_MGMT_2, 4, 0, &spkoutl_mux,
682 out_pga_event, SND_SOC_DAPM_POST_PMU),
683 SND_SOC_DAPM_PGA("Speaker Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0),
684 SND_SOC_DAPM_OUTPUT("SPKOUT"),
685 };
686
687 static const struct snd_soc_dapm_widget wm8962_dapm_spk_stereo_widgets[] = {
688 SND_SOC_DAPM_MIXER("SPKOUTL Mixer", WM8962_MIXER_ENABLES, 1, 0,
689 spkmixl, ARRAY_SIZE(spkmixl)),
690 SND_SOC_DAPM_MIXER("SPKOUTR Mixer", WM8962_MIXER_ENABLES, 0, 0,
691 spkmixr, ARRAY_SIZE(spkmixr)),
692
693 SND_SOC_DAPM_MUX_E("SPKOUTL PGA", WM8962_PWR_MGMT_2, 4, 0, &spkoutl_mux,
694 out_pga_event, SND_SOC_DAPM_POST_PMU),
695 SND_SOC_DAPM_MUX_E("SPKOUTR PGA", WM8962_PWR_MGMT_2, 3, 0, &spkoutr_mux,
696 out_pga_event, SND_SOC_DAPM_POST_PMU),
697
698 SND_SOC_DAPM_PGA("SPKOUTR Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0),
699 SND_SOC_DAPM_PGA("SPKOUTL Output", WM8962_CLASS_D_CONTROL_1, 6, 0, NULL, 0),
700
701 SND_SOC_DAPM_OUTPUT("SPKOUTL"),
702 SND_SOC_DAPM_OUTPUT("SPKOUTR"),
703 };
704
705 static const struct snd_soc_dapm_route wm8962_intercon[] = {
706 { "INPGAL", "IN1L Switch", "IN1L" },
707 { "INPGAL", "IN2L Switch", "IN2L" },
708 { "INPGAL", "IN3L Switch", "IN3L" },
709 { "INPGAL", "IN4L Switch", "IN4L" },
710
711 { "INPGAR", "IN1R Switch", "IN1R" },
712 { "INPGAR", "IN2R Switch", "IN2R" },
713 { "INPGAR", "IN3R Switch", "IN3R" },
714 { "INPGAR", "IN4R Switch", "IN4R" },
715
716 { "MIXINL", "IN2L Switch", "IN2L" },
717 { "MIXINL", "IN3L Switch", "IN3L" },
718 { "MIXINL", "PGA Switch", "INPGAL" },
719
720 { "MIXINR", "IN2R Switch", "IN2R" },
721 { "MIXINR", "IN3R Switch", "IN3R" },
722 { "MIXINR", "PGA Switch", "INPGAR" },
723
724 { "ADCL", NULL, "SYSCLK" },
725 { "ADCL", NULL, "TOCLK" },
726 { "ADCL", NULL, "MIXINL" },
727
728 { "ADCR", NULL, "SYSCLK" },
729 { "ADCR", NULL, "TOCLK" },
730 { "ADCR", NULL, "MIXINR" },
731
732 { "STL", "Left", "ADCL" },
733 { "STL", "Right", "ADCR" },
734
735 { "STR", "Left", "ADCL" },
736 { "STR", "Right", "ADCR" },
737
738 { "DACL", NULL, "SYSCLK" },
739 { "DACL", NULL, "TOCLK" },
740 { "DACL", NULL, "Beep" },
741 { "DACL", NULL, "STL" },
742
743 { "DACR", NULL, "SYSCLK" },
744 { "DACR", NULL, "TOCLK" },
745 { "DACR", NULL, "Beep" },
746 { "DACR", NULL, "STR" },
747
748 { "HPMIXL", "IN4L Switch", "IN4L" },
749 { "HPMIXL", "IN4R Switch", "IN4R" },
750 { "HPMIXL", "DACL Switch", "DACL" },
751 { "HPMIXL", "DACR Switch", "DACR" },
752 { "HPMIXL", "MIXINL Switch", "MIXINL" },
753 { "HPMIXL", "MIXINR Switch", "MIXINR" },
754
755 { "HPMIXR", "IN4L Switch", "IN4L" },
756 { "HPMIXR", "IN4R Switch", "IN4R" },
757 { "HPMIXR", "DACL Switch", "DACL" },
758 { "HPMIXR", "DACR Switch", "DACR" },
759 { "HPMIXR", "MIXINL Switch", "MIXINL" },
760 { "HPMIXR", "MIXINR Switch", "MIXINR" },
761
762 { "Left Bypass", NULL, "HPMIXL" },
763 { "Left Bypass", NULL, "Class G" },
764
765 { "Right Bypass", NULL, "HPMIXR" },
766 { "Right Bypass", NULL, "Class G" },
767
768 { "HPOUTL PGA", "Mixer", "Left Bypass" },
769 { "HPOUTL PGA", "DAC", "DACL" },
770
771 { "HPOUTR PGA", "Mixer", "Right Bypass" },
772 { "HPOUTR PGA", "DAC", "DACR" },
773
774 { "HPOUT", NULL, "HPOUTL PGA" },
775 { "HPOUT", NULL, "HPOUTR PGA" },
776 { "HPOUT", NULL, "Charge Pump" },
777 { "HPOUT", NULL, "SYSCLK" },
778 { "HPOUT", NULL, "TOCLK" },
779
780 { "HPOUTL", NULL, "HPOUT" },
781 { "HPOUTR", NULL, "HPOUT" },
782 };
783
784 static const struct snd_soc_dapm_route wm8962_spk_mono_intercon[] = {
785 { "Speaker Mixer", "IN4L Switch", "IN4L" },
786 { "Speaker Mixer", "IN4R Switch", "IN4R" },
787 { "Speaker Mixer", "DACL Switch", "DACL" },
788 { "Speaker Mixer", "DACR Switch", "DACR" },
789 { "Speaker Mixer", "MIXINL Switch", "MIXINL" },
790 { "Speaker Mixer", "MIXINR Switch", "MIXINR" },
791
792 { "Speaker PGA", "Mixer", "Speaker Mixer" },
793 { "Speaker PGA", "DAC", "DACL" },
794
795 { "Speaker Output", NULL, "Speaker PGA" },
796 { "Speaker Output", NULL, "SYSCLK" },
797 { "Speaker Output", NULL, "TOCLK" },
798
799 { "SPKOUT", NULL, "Speaker Output" },
800 };
801
802 static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon[] = {
803 { "SPKOUTL Mixer", "IN4L Switch", "IN4L" },
804 { "SPKOUTL Mixer", "IN4R Switch", "IN4R" },
805 { "SPKOUTL Mixer", "DACL Switch", "DACL" },
806 { "SPKOUTL Mixer", "DACR Switch", "DACR" },
807 { "SPKOUTL Mixer", "MIXINL Switch", "MIXINL" },
808 { "SPKOUTL Mixer", "MIXINR Switch", "MIXINR" },
809
810 { "SPKOUTR Mixer", "IN4L Switch", "IN4L" },
811 { "SPKOUTR Mixer", "IN4R Switch", "IN4R" },
812 { "SPKOUTR Mixer", "DACL Switch", "DACL" },
813 { "SPKOUTR Mixer", "DACR Switch", "DACR" },
814 { "SPKOUTR Mixer", "MIXINL Switch", "MIXINL" },
815 { "SPKOUTR Mixer", "MIXINR Switch", "MIXINR" },
816
817 { "SPKOUTL PGA", "Mixer", "SPKOUTL Mixer" },
818 { "SPKOUTL PGA", "DAC", "DACL" },
819
820 { "SPKOUTR PGA", "Mixer", "SPKOUTR Mixer" },
821 { "SPKOUTR PGA", "DAC", "DACR" },
822
823 { "SPKOUTL Output", NULL, "SPKOUTL PGA" },
824 { "SPKOUTL Output", NULL, "SYSCLK" },
825 { "SPKOUTL Output", NULL, "TOCLK" },
826
827 { "SPKOUTR Output", NULL, "SPKOUTR PGA" },
828 { "SPKOUTR Output", NULL, "SYSCLK" },
829 { "SPKOUTR Output", NULL, "TOCLK" },
830
831 { "SPKOUTL", NULL, "SPKOUTL Output" },
832 { "SPKOUTR", NULL, "SPKOUTR Output" },
833 };
834
835 static int wm8962_add_widgets(struct snd_soc_codec *codec)
836 {
837 struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
838
839 snd_soc_add_controls(codec, wm8962_snd_controls,
840 ARRAY_SIZE(wm8962_snd_controls));
841 if (pdata && pdata->spk_mono)
842 snd_soc_add_controls(codec, wm8962_spk_mono_controls,
843 ARRAY_SIZE(wm8962_spk_mono_controls));
844 else
845 snd_soc_add_controls(codec, wm8962_spk_stereo_controls,
846 ARRAY_SIZE(wm8962_spk_stereo_controls));
847
848
849 snd_soc_dapm_new_controls(codec, wm8962_dapm_widgets,
850 ARRAY_SIZE(wm8962_dapm_widgets));
851 if (pdata && pdata->spk_mono)
852 snd_soc_dapm_new_controls(codec, wm8962_dapm_spk_mono_widgets,
853 ARRAY_SIZE(wm8962_dapm_spk_mono_widgets));
854 else
855 snd_soc_dapm_new_controls(codec, wm8962_dapm_spk_stereo_widgets,
856 ARRAY_SIZE(wm8962_dapm_spk_stereo_widgets));
857
858 snd_soc_dapm_add_routes(codec, wm8962_intercon,
859 ARRAY_SIZE(wm8962_intercon));
860 if (pdata && pdata->spk_mono)
861 snd_soc_dapm_add_routes(codec, wm8962_spk_mono_intercon,
862 ARRAY_SIZE(wm8962_spk_mono_intercon));
863 else
864 snd_soc_dapm_add_routes(codec, wm8962_spk_stereo_intercon,
865 ARRAY_SIZE(wm8962_spk_stereo_intercon));
866
867
868 snd_soc_dapm_disable_pin(codec, "Beep");
869
870 return 0;
871 }
872
873 static void wm8962_sync_cache(struct snd_soc_codec *codec)
874 {
875 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
876 int i;
877
878 if (!codec->cache_sync)
879 return;
880
881 dev_dbg(codec->dev, "Syncing cache\n");
882
883 codec->cache_only = 0;
884
885 /* Sync back cached values if they're different from the
886 * hardware default.
887 */
888 for (i = 1; i < ARRAY_SIZE(wm8962->reg_cache); i++) {
889 if (i == WM8962_SOFTWARE_RESET)
890 continue;
891 if (wm8962->reg_cache[i] == wm8962_reg[i])
892 continue;
893
894 snd_soc_write(codec, i, wm8962->reg_cache[i]);
895 }
896
897 codec->cache_sync = 0;
898 }
899
900 /* -1 for reserved values */
901 static const int bclk_divs[] = {
902 1, -1, 2, 3, 4, -1, 6, 8, -1, 12, 16, 24, -1, 32, 32, 32
903 };
904
905 static void wm8962_configure_bclk(struct snd_soc_codec *codec)
906 {
907 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
908 int dspclk, i;
909 int clocking2 = 0;
910 int aif2 = 0;
911
912 /* If the CODEC is powered on we can configure BCLK */
913 if (codec->bias_level != SND_SOC_BIAS_OFF) {
914 dev_dbg(codec->dev, "Bias is off, can't configure BCLK\n");
915 return;
916 }
917
918 if (!wm8962->bclk) {
919 dev_dbg(codec->dev, "No BCLK rate configured\n");
920 return;
921 }
922
923 dspclk = snd_soc_read(codec, WM8962_CLOCKING1);
924 if (dspclk < 0) {
925 dev_err(codec->dev, "Failed to read DSPCLK: %d\n", dspclk);
926 return;
927 }
928
929 dspclk = (dspclk & WM8962_DSPCLK_DIV_MASK) >> WM8962_DSPCLK_DIV_SHIFT;
930 switch (dspclk) {
931 case 0:
932 dspclk = wm8962->sysclk_rate;
933 break;
934 case 1:
935 dspclk = wm8962->sysclk_rate / 2;
936 break;
937 case 2:
938 dspclk = wm8962->sysclk_rate / 4;
939 break;
940 default:
941 dev_warn(codec->dev, "Unknown DSPCLK divisor read back\n");
942 dspclk = wm8962->sysclk;
943 }
944
945 dev_dbg(codec->dev, "DSPCLK is %dHz, BCLK %d\n", dspclk, wm8962->bclk);
946
947 /* We're expecting an exact match */
948 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
949 if (bclk_divs[i] < 0)
950 continue;
951
952 if (dspclk / bclk_divs[i] == wm8962->bclk) {
953 dev_dbg(codec->dev, "Selected BCLK_DIV %d for %dHz\n",
954 bclk_divs[i], wm8962->bclk);
955 clocking2 |= i;
956 break;
957 }
958 }
959 if (i == ARRAY_SIZE(bclk_divs)) {
960 dev_err(codec->dev, "Unsupported BCLK ratio %d\n",
961 dspclk / wm8962->bclk);
962 return;
963 }
964
965 aif2 |= wm8962->bclk / wm8962->lrclk;
966 dev_dbg(codec->dev, "Selected LRCLK divisor %d for %dHz\n",
967 wm8962->bclk / wm8962->lrclk, wm8962->lrclk);
968
969 snd_soc_update_bits(codec, WM8962_CLOCKING2,
970 WM8962_BCLK_DIV_MASK, clocking2);
971 snd_soc_update_bits(codec, WM8962_AUDIO_INTERFACE_2,
972 WM8962_AIF_RATE_MASK, aif2);
973 }
974
975 static int wm8962_set_bias_level(struct snd_soc_codec *codec,
976 enum snd_soc_bias_level level)
977 {
978 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
979 int ret;
980
981 if (level == codec->bias_level)
982 return 0;
983
984 switch (level) {
985 case SND_SOC_BIAS_ON:
986 break;
987
988 case SND_SOC_BIAS_PREPARE:
989 /* VMID 2*50k */
990 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
991 WM8962_VMID_SEL_MASK, 0x80);
992 break;
993
994 case SND_SOC_BIAS_STANDBY:
995 if (codec->bias_level == SND_SOC_BIAS_OFF) {
996 ret = regulator_bulk_enable(ARRAY_SIZE(wm8962->supplies),
997 wm8962->supplies);
998 if (ret != 0) {
999 dev_err(codec->dev,
1000 "Failed to enable supplies: %d\n",
1001 ret);
1002 return ret;
1003 }
1004
1005 wm8962_sync_cache(codec);
1006
1007 snd_soc_update_bits(codec, WM8962_ANTI_POP,
1008 WM8962_STARTUP_BIAS_ENA |
1009 WM8962_VMID_BUF_ENA,
1010 WM8962_STARTUP_BIAS_ENA |
1011 WM8962_VMID_BUF_ENA);
1012
1013 /* Bias enable at 2*50k for ramp */
1014 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
1015 WM8962_VMID_SEL_MASK |
1016 WM8962_BIAS_ENA,
1017 WM8962_BIAS_ENA | 0x180);
1018
1019 msleep(5);
1020
1021 snd_soc_update_bits(codec, WM8962_CLOCKING2,
1022 WM8962_CLKREG_OVD,
1023 WM8962_CLKREG_OVD);
1024
1025 wm8962_configure_bclk(codec);
1026 }
1027
1028 /* VMID 2*250k */
1029 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
1030 WM8962_VMID_SEL_MASK, 0x100);
1031 break;
1032
1033 case SND_SOC_BIAS_OFF:
1034 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
1035 WM8962_VMID_SEL_MASK | WM8962_BIAS_ENA, 0);
1036
1037 snd_soc_update_bits(codec, WM8962_ANTI_POP,
1038 WM8962_STARTUP_BIAS_ENA |
1039 WM8962_VMID_BUF_ENA, 0);
1040
1041 regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies),
1042 wm8962->supplies);
1043 break;
1044 }
1045 codec->bias_level = level;
1046 return 0;
1047 }
1048
1049 static const struct {
1050 int rate;
1051 int reg;
1052 } sr_vals[] = {
1053 { 48000, 0 },
1054 { 44100, 0 },
1055 { 32000, 1 },
1056 { 22050, 2 },
1057 { 24000, 2 },
1058 { 16000, 3 },
1059 { 11025, 4 },
1060 { 12000, 4 },
1061 { 8000, 5 },
1062 { 88200, 6 },
1063 { 96000, 6 },
1064 };
1065
1066 static const int sysclk_rates[] = {
1067 64, 128, 192, 256, 384, 512, 768, 1024, 1408, 1536,
1068 };
1069
1070 static int wm8962_hw_params(struct snd_pcm_substream *substream,
1071 struct snd_pcm_hw_params *params,
1072 struct snd_soc_dai *dai)
1073 {
1074 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1075 struct snd_soc_codec *codec = rtd->codec;
1076 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1077 int rate = params_rate(params);
1078 int i;
1079 int aif0 = 0;
1080 int adctl3 = 0;
1081 int clocking4 = 0;
1082
1083 wm8962->bclk = snd_soc_params_to_bclk(params);
1084 wm8962->lrclk = params_rate(params);
1085
1086 for (i = 0; i < ARRAY_SIZE(sr_vals); i++) {
1087 if (sr_vals[i].rate == rate) {
1088 adctl3 |= sr_vals[i].reg;
1089 break;
1090 }
1091 }
1092 if (i == ARRAY_SIZE(sr_vals)) {
1093 dev_err(codec->dev, "Unsupported rate %dHz\n", rate);
1094 return -EINVAL;
1095 }
1096
1097 if (rate % 8000 == 0)
1098 adctl3 |= WM8962_SAMPLE_RATE_INT_MODE;
1099
1100 for (i = 0; i < ARRAY_SIZE(sysclk_rates); i++) {
1101 if (sysclk_rates[i] == wm8962->sysclk_rate / rate) {
1102 clocking4 |= i << WM8962_SYSCLK_RATE_SHIFT;
1103 break;
1104 }
1105 }
1106 if (i == ARRAY_SIZE(sysclk_rates)) {
1107 dev_err(codec->dev, "Unsupported sysclk ratio %d\n",
1108 wm8962->sysclk_rate / rate);
1109 return -EINVAL;
1110 }
1111
1112 switch (params_format(params)) {
1113 case SNDRV_PCM_FORMAT_S16_LE:
1114 break;
1115 case SNDRV_PCM_FORMAT_S20_3LE:
1116 aif0 |= 0x40;
1117 break;
1118 case SNDRV_PCM_FORMAT_S24_LE:
1119 aif0 |= 0x80;
1120 break;
1121 case SNDRV_PCM_FORMAT_S32_LE:
1122 aif0 |= 0xc0;
1123 break;
1124 default:
1125 return -EINVAL;
1126 }
1127
1128 snd_soc_update_bits(codec, WM8962_AUDIO_INTERFACE_0,
1129 WM8962_WL_MASK, aif0);
1130 snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_3,
1131 WM8962_SAMPLE_RATE_INT_MODE |
1132 WM8962_SAMPLE_RATE_MASK, adctl3);
1133 snd_soc_update_bits(codec, WM8962_CLOCKING_4,
1134 WM8962_SYSCLK_RATE_MASK, clocking4);
1135
1136 wm8962_configure_bclk(codec);
1137
1138 return 0;
1139 }
1140
1141 static int wm8962_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1142 unsigned int freq, int dir)
1143 {
1144 struct snd_soc_codec *codec = dai->codec;
1145 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1146 int src;
1147
1148 switch (clk_id) {
1149 case WM8962_SYSCLK_MCLK:
1150 wm8962->sysclk = WM8962_SYSCLK_MCLK;
1151 src = 0;
1152 break;
1153 case WM8962_SYSCLK_FLL:
1154 wm8962->sysclk = WM8962_SYSCLK_FLL;
1155 src = 1 << WM8962_SYSCLK_SRC_SHIFT;
1156 WARN_ON(freq != wm8962->fll_fout);
1157 break;
1158 default:
1159 return -EINVAL;
1160 }
1161
1162 snd_soc_update_bits(codec, WM8962_CLOCKING2, WM8962_SYSCLK_SRC_MASK,
1163 src);
1164
1165 wm8962->sysclk_rate = freq;
1166
1167 return 0;
1168 }
1169
1170 static int wm8962_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1171 {
1172 struct snd_soc_codec *codec = dai->codec;
1173 int aif0 = 0;
1174
1175 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1176 case SND_SOC_DAIFMT_DSP_A:
1177 aif0 |= WM8962_LRCLK_INV;
1178 case SND_SOC_DAIFMT_DSP_B:
1179 aif0 |= 3;
1180
1181 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1182 case SND_SOC_DAIFMT_NB_NF:
1183 case SND_SOC_DAIFMT_IB_NF:
1184 break;
1185 default:
1186 return -EINVAL;
1187 }
1188 break;
1189
1190 case SND_SOC_DAIFMT_RIGHT_J:
1191 break;
1192 case SND_SOC_DAIFMT_LEFT_J:
1193 aif0 |= 1;
1194 break;
1195 case SND_SOC_DAIFMT_I2S:
1196 aif0 |= 2;
1197 break;
1198 default:
1199 return -EINVAL;
1200 }
1201
1202 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1203 case SND_SOC_DAIFMT_NB_NF:
1204 break;
1205 case SND_SOC_DAIFMT_IB_NF:
1206 aif0 |= WM8962_BCLK_INV;
1207 break;
1208 case SND_SOC_DAIFMT_NB_IF:
1209 aif0 |= WM8962_LRCLK_INV;
1210 break;
1211 case SND_SOC_DAIFMT_IB_IF:
1212 aif0 |= WM8962_BCLK_INV | WM8962_LRCLK_INV;
1213 break;
1214 default:
1215 return -EINVAL;
1216 }
1217
1218 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1219 case SND_SOC_DAIFMT_CBM_CFM:
1220 aif0 |= WM8962_MSTR;
1221 break;
1222 case SND_SOC_DAIFMT_CBS_CFS:
1223 break;
1224 default:
1225 return -EINVAL;
1226 }
1227
1228 snd_soc_update_bits(codec, WM8962_AUDIO_INTERFACE_0,
1229 WM8962_FMT_MASK | WM8962_BCLK_INV | WM8962_MSTR |
1230 WM8962_LRCLK_INV, aif0);
1231
1232 return 0;
1233 }
1234
1235 struct _fll_div {
1236 u16 fll_fratio;
1237 u16 fll_outdiv;
1238 u16 fll_refclk_div;
1239 u16 n;
1240 u16 theta;
1241 u16 lambda;
1242 };
1243
1244 /* The size in bits of the FLL divide multiplied by 10
1245 * to allow rounding later */
1246 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1247
1248 static struct {
1249 unsigned int min;
1250 unsigned int max;
1251 u16 fll_fratio;
1252 int ratio;
1253 } fll_fratios[] = {
1254 { 0, 64000, 4, 16 },
1255 { 64000, 128000, 3, 8 },
1256 { 128000, 256000, 2, 4 },
1257 { 256000, 1000000, 1, 2 },
1258 { 1000000, 13500000, 0, 1 },
1259 };
1260
1261 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1262 unsigned int Fout)
1263 {
1264 unsigned int target;
1265 unsigned int div;
1266 unsigned int fratio, gcd_fll;
1267 int i;
1268
1269 /* Fref must be <=13.5MHz */
1270 div = 1;
1271 fll_div->fll_refclk_div = 0;
1272 while ((Fref / div) > 13500000) {
1273 div *= 2;
1274 fll_div->fll_refclk_div++;
1275
1276 if (div > 4) {
1277 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1278 Fref);
1279 return -EINVAL;
1280 }
1281 }
1282
1283 pr_debug("FLL Fref=%u Fout=%u\n", Fref, Fout);
1284
1285 /* Apply the division for our remaining calculations */
1286 Fref /= div;
1287
1288 /* Fvco should be 90-100MHz; don't check the upper bound */
1289 div = 2;
1290 while (Fout * div < 90000000) {
1291 div++;
1292 if (div > 64) {
1293 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1294 Fout);
1295 return -EINVAL;
1296 }
1297 }
1298 target = Fout * div;
1299 fll_div->fll_outdiv = div - 1;
1300
1301 pr_debug("FLL Fvco=%dHz\n", target);
1302
1303 /* Find an appropraite FLL_FRATIO and factor it out of the target */
1304 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1305 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1306 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1307 fratio = fll_fratios[i].ratio;
1308 break;
1309 }
1310 }
1311 if (i == ARRAY_SIZE(fll_fratios)) {
1312 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1313 return -EINVAL;
1314 }
1315
1316 fll_div->n = target / (fratio * Fref);
1317
1318 if (target % Fref == 0) {
1319 fll_div->theta = 0;
1320 fll_div->lambda = 0;
1321 } else {
1322 gcd_fll = gcd(target, fratio * Fref);
1323
1324 fll_div->theta = (target - (fll_div->n * fratio * Fref))
1325 / gcd_fll;
1326 fll_div->lambda = (fratio * Fref) / gcd_fll;
1327 }
1328
1329 pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n",
1330 fll_div->n, fll_div->theta, fll_div->lambda);
1331 pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n",
1332 fll_div->fll_fratio, fll_div->fll_outdiv,
1333 fll_div->fll_refclk_div);
1334
1335 return 0;
1336 }
1337
1338 static int wm8962_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
1339 unsigned int Fref, unsigned int Fout)
1340 {
1341 struct snd_soc_codec *codec = dai->codec;
1342 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1343 struct _fll_div fll_div;
1344 int ret;
1345 int fll1 = snd_soc_read(codec, WM8962_FLL_CONTROL_1);
1346
1347 /* Any change? */
1348 if (source == wm8962->fll_src && Fref == wm8962->fll_fref &&
1349 Fout == wm8962->fll_fout)
1350 return 0;
1351
1352 if (Fout == 0) {
1353 dev_dbg(codec->dev, "FLL disabled\n");
1354
1355 wm8962->fll_fref = 0;
1356 wm8962->fll_fout = 0;
1357
1358 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
1359 WM8962_FLL_ENA, 0);
1360
1361 return 0;
1362 }
1363
1364 ret = fll_factors(&fll_div, Fref, Fout);
1365 if (ret != 0)
1366 return ret;
1367
1368 switch (fll_id) {
1369 case WM8962_FLL_MCLK:
1370 case WM8962_FLL_BCLK:
1371 case WM8962_FLL_OSC:
1372 fll1 |= (fll_id - 1) << WM8962_FLL_REFCLK_SRC_SHIFT;
1373 break;
1374 case WM8962_FLL_INT:
1375 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
1376 WM8962_FLL_OSC_ENA, WM8962_FLL_OSC_ENA);
1377 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_5,
1378 WM8962_FLL_FRC_NCO, WM8962_FLL_FRC_NCO);
1379 break;
1380 default:
1381 dev_err(codec->dev, "Unknown FLL source %d\n", ret);
1382 return -EINVAL;
1383 }
1384
1385 if (fll_div.theta || fll_div.lambda)
1386 fll1 |= WM8962_FLL_FRAC;
1387
1388 /* Stop the FLL while we reconfigure */
1389 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1, WM8962_FLL_ENA, 0);
1390
1391 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_2,
1392 WM8962_FLL_OUTDIV_MASK |
1393 WM8962_FLL_REFCLK_DIV_MASK,
1394 (fll_div.fll_outdiv << WM8962_FLL_OUTDIV_SHIFT) |
1395 (fll_div.fll_refclk_div));
1396
1397 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_3,
1398 WM8962_FLL_FRATIO_MASK, fll_div.fll_fratio);
1399
1400 snd_soc_write(codec, WM8962_FLL_CONTROL_6, fll_div.theta);
1401 snd_soc_write(codec, WM8962_FLL_CONTROL_7, fll_div.lambda);
1402 snd_soc_write(codec, WM8962_FLL_CONTROL_8, fll_div.n);
1403
1404 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
1405 WM8962_FLL_FRAC | WM8962_FLL_REFCLK_SRC_MASK |
1406 WM8962_FLL_ENA, fll1);
1407
1408 dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
1409
1410 wm8962->fll_fref = Fref;
1411 wm8962->fll_fout = Fout;
1412 wm8962->fll_src = source;
1413
1414 return 0;
1415 }
1416
1417 static int wm8962_mute(struct snd_soc_dai *dai, int mute)
1418 {
1419 struct snd_soc_codec *codec = dai->codec;
1420 int val;
1421
1422 if (mute)
1423 val = WM8962_DAC_MUTE;
1424 else
1425 val = 0;
1426
1427 return snd_soc_update_bits(codec, WM8962_ADC_DAC_CONTROL_1,
1428 WM8962_DAC_MUTE, val);
1429 }
1430
1431 #define WM8962_RATES SNDRV_PCM_RATE_8000_96000
1432
1433 #define WM8962_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1434 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1435
1436 static struct snd_soc_dai_ops wm8962_dai_ops = {
1437 .hw_params = wm8962_hw_params,
1438 .set_sysclk = wm8962_set_dai_sysclk,
1439 .set_fmt = wm8962_set_dai_fmt,
1440 .set_pll = wm8962_set_fll,
1441 .digital_mute = wm8962_mute,
1442 };
1443
1444 static struct snd_soc_dai_driver wm8962_dai = {
1445 .name = "wm8962",
1446 .playback = {
1447 .stream_name = "Playback",
1448 .channels_min = 2,
1449 .channels_max = 2,
1450 .rates = WM8962_RATES,
1451 .formats = WM8962_FORMATS,
1452 },
1453 .capture = {
1454 .stream_name = "Capture",
1455 .channels_min = 2,
1456 .channels_max = 2,
1457 .rates = WM8962_RATES,
1458 .formats = WM8962_FORMATS,
1459 },
1460 .ops = &wm8962_dai_ops,
1461 .symmetric_rates = 1,
1462 };
1463
1464 #ifdef CONFIG_PM
1465 static int wm8962_resume(struct snd_soc_codec *codec)
1466 {
1467 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1468 u16 *reg_cache = codec->reg_cache;
1469 int i;
1470
1471 /* Restore the registers */
1472 for (i = 1; i < ARRAY_SIZE(wm8962->reg_cache); i++) {
1473 switch (i) {
1474 case WM8962_SOFTWARE_RESET:
1475 continue;
1476 default:
1477 break;
1478 }
1479
1480 if (reg_cache[i] != wm8962_reg[i])
1481 snd_soc_write(codec, i, reg_cache[i]);
1482 }
1483
1484 return 0;
1485 }
1486 #else
1487 #define wm8962_resume NULL
1488 #endif
1489
1490 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
1491 static int beep_rates[] = {
1492 500, 1000, 2000, 4000,
1493 };
1494
1495 static void wm8962_beep_work(struct work_struct *work)
1496 {
1497 struct wm8962_priv *wm8962 =
1498 container_of(work, struct wm8962_priv, beep_work);
1499 struct snd_soc_codec *codec = wm8962->codec;
1500 int i;
1501 int reg = 0;
1502 int best = 0;
1503
1504 if (wm8962->beep_rate) {
1505 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) {
1506 if (abs(wm8962->beep_rate - beep_rates[i]) <
1507 abs(wm8962->beep_rate - beep_rates[best]))
1508 best = i;
1509 }
1510
1511 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n",
1512 beep_rates[best], wm8962->beep_rate);
1513
1514 reg = WM8962_BEEP_ENA | (best << WM8962_BEEP_RATE_SHIFT);
1515
1516 snd_soc_dapm_enable_pin(codec, "Beep");
1517 } else {
1518 dev_dbg(codec->dev, "Disabling beep\n");
1519 snd_soc_dapm_disable_pin(codec, "Beep");
1520 }
1521
1522 snd_soc_update_bits(codec, WM8962_BEEP_GENERATOR_1,
1523 WM8962_BEEP_ENA | WM8962_BEEP_RATE_MASK, reg);
1524
1525 snd_soc_dapm_sync(codec);
1526 }
1527
1528 /* For usability define a way of injecting beep events for the device -
1529 * many systems will not have a keyboard.
1530 */
1531 static int wm8962_beep_event(struct input_dev *dev, unsigned int type,
1532 unsigned int code, int hz)
1533 {
1534 struct snd_soc_codec *codec = input_get_drvdata(dev);
1535 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1536
1537 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz);
1538
1539 switch (code) {
1540 case SND_BELL:
1541 if (hz)
1542 hz = 1000;
1543 case SND_TONE:
1544 break;
1545 default:
1546 return -1;
1547 }
1548
1549 /* Kick the beep from a workqueue */
1550 wm8962->beep_rate = hz;
1551 schedule_work(&wm8962->beep_work);
1552 return 0;
1553 }
1554
1555 static ssize_t wm8962_beep_set(struct device *dev,
1556 struct device_attribute *attr,
1557 const char *buf, size_t count)
1558 {
1559 struct wm8962_priv *wm8962 = dev_get_drvdata(dev);
1560 long int time;
1561
1562 strict_strtol(buf, 10, &time);
1563
1564 input_event(wm8962->beep, EV_SND, SND_TONE, time);
1565
1566 return count;
1567 }
1568
1569 static DEVICE_ATTR(beep, 0200, NULL, wm8962_beep_set);
1570
1571 static void wm8962_init_beep(struct snd_soc_codec *codec)
1572 {
1573 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1574 int ret;
1575
1576 wm8962->beep = input_allocate_device();
1577 if (!wm8962->beep) {
1578 dev_err(codec->dev, "Failed to allocate beep device\n");
1579 return;
1580 }
1581
1582 INIT_WORK(&wm8962->beep_work, wm8962_beep_work);
1583 wm8962->beep_rate = 0;
1584
1585 wm8962->beep->name = "WM8962 Beep Generator";
1586 wm8962->beep->phys = dev_name(codec->dev);
1587 wm8962->beep->id.bustype = BUS_I2C;
1588
1589 wm8962->beep->evbit[0] = BIT_MASK(EV_SND);
1590 wm8962->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
1591 wm8962->beep->event = wm8962_beep_event;
1592 wm8962->beep->dev.parent = codec->dev;
1593 input_set_drvdata(wm8962->beep, codec);
1594
1595 ret = input_register_device(wm8962->beep);
1596 if (ret != 0) {
1597 input_free_device(wm8962->beep);
1598 wm8962->beep = NULL;
1599 dev_err(codec->dev, "Failed to register beep device\n");
1600 }
1601
1602 ret = device_create_file(codec->dev, &dev_attr_beep);
1603 if (ret != 0) {
1604 dev_err(codec->dev, "Failed to create keyclick file: %d\n",
1605 ret);
1606 }
1607 }
1608
1609 static void wm8962_free_beep(struct snd_soc_codec *codec)
1610 {
1611 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1612
1613 device_remove_file(codec->dev, &dev_attr_beep);
1614 input_unregister_device(wm8962->beep);
1615 cancel_work_sync(&wm8962->beep_work);
1616 wm8962->beep = NULL;
1617
1618 snd_soc_update_bits(codec, WM8962_BEEP_GENERATOR_1, WM8962_BEEP_ENA,0);
1619 }
1620 #else
1621 static void wm8962_init_beep(struct snd_soc_codec *codec)
1622 {
1623 }
1624
1625 static void wm8962_free_beep(struct snd_soc_codec *codec)
1626 {
1627 }
1628 #endif
1629
1630 static int wm8962_probe(struct snd_soc_codec *codec)
1631 {
1632 int ret;
1633 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1634 struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
1635 int i;
1636
1637 wm8962->codec = codec;
1638
1639 codec->cache_sync = 1;
1640 codec->idle_bias_off = 1;
1641
1642 ret = snd_soc_codec_set_cache_io(codec, 16, 16, SND_SOC_I2C);
1643 if (ret != 0) {
1644 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1645 goto err;
1646 }
1647
1648 for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++)
1649 wm8962->supplies[i].supply = wm8962_supply_names[i];
1650
1651 ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8962->supplies),
1652 wm8962->supplies);
1653 if (ret != 0) {
1654 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
1655 goto err;
1656 }
1657
1658 wm8962->disable_nb[0].notifier_call = wm8962_regulator_event_0;
1659 wm8962->disable_nb[1].notifier_call = wm8962_regulator_event_1;
1660 wm8962->disable_nb[2].notifier_call = wm8962_regulator_event_2;
1661 wm8962->disable_nb[3].notifier_call = wm8962_regulator_event_3;
1662 wm8962->disable_nb[4].notifier_call = wm8962_regulator_event_4;
1663 wm8962->disable_nb[5].notifier_call = wm8962_regulator_event_5;
1664 wm8962->disable_nb[6].notifier_call = wm8962_regulator_event_6;
1665 wm8962->disable_nb[7].notifier_call = wm8962_regulator_event_7;
1666
1667 /* This should really be moved into the regulator core */
1668 for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++) {
1669 ret = regulator_register_notifier(wm8962->supplies[i].consumer,
1670 &wm8962->disable_nb[i]);
1671 if (ret != 0) {
1672 dev_err(codec->dev,
1673 "Failed to register regulator notifier: %d\n",
1674 ret);
1675 }
1676 }
1677
1678 ret = regulator_bulk_enable(ARRAY_SIZE(wm8962->supplies),
1679 wm8962->supplies);
1680 if (ret != 0) {
1681 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
1682 goto err_get;
1683 }
1684
1685 ret = snd_soc_read(codec, WM8962_SOFTWARE_RESET);
1686 if (ret < 0) {
1687 dev_err(codec->dev, "Failed to read ID register\n");
1688 goto err_enable;
1689 }
1690 if (ret != wm8962_reg[WM8962_SOFTWARE_RESET]) {
1691 dev_err(codec->dev, "Device is not a WM8962, ID %x != %x\n",
1692 ret, wm8962_reg[WM8962_SOFTWARE_RESET]);
1693 ret = -EINVAL;
1694 goto err_enable;
1695 }
1696
1697 ret = snd_soc_read(codec, WM8962_RIGHT_INPUT_VOLUME);
1698 if (ret < 0) {
1699 dev_err(codec->dev, "Failed to read device revision: %d\n",
1700 ret);
1701 goto err_enable;
1702 }
1703
1704 dev_info(codec->dev, "customer id %x revision %c\n",
1705 (ret & WM8962_CUST_ID_MASK) >> WM8962_CUST_ID_SHIFT,
1706 ((ret & WM8962_CHIP_REV_MASK) >> WM8962_CHIP_REV_SHIFT)
1707 + 'A');
1708
1709 ret = wm8962_reset(codec);
1710 if (ret < 0) {
1711 dev_err(codec->dev, "Failed to issue reset\n");
1712 goto err_enable;
1713 }
1714
1715 /* SYSCLK defaults to on; make sure it is off so we can safely
1716 * write to registers if the device is declocked.
1717 */
1718 snd_soc_update_bits(codec, WM8962_CLOCKING2, WM8962_SYSCLK_ENA, 0);
1719
1720 regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1721
1722 if (pdata) {
1723 /* Apply static configuration for GPIOs */
1724 for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
1725 if (pdata->gpio_init[i])
1726 snd_soc_write(codec, 0x200 + i,
1727 pdata->gpio_init[i] & 0xffff);
1728
1729 /* Put the speakers into mono mode? */
1730 if (pdata->spk_mono)
1731 wm8962->reg_cache[WM8962_CLASS_D_CONTROL_2]
1732 |= WM8962_SPK_MONO;
1733 }
1734
1735 /* Latch volume update bits */
1736 wm8962->reg_cache[WM8962_LEFT_INPUT_VOLUME] |= WM8962_IN_VU;
1737 wm8962->reg_cache[WM8962_RIGHT_INPUT_VOLUME] |= WM8962_IN_VU;
1738 wm8962->reg_cache[WM8962_LEFT_ADC_VOLUME] |= WM8962_ADC_VU;
1739 wm8962->reg_cache[WM8962_RIGHT_ADC_VOLUME] |= WM8962_ADC_VU;
1740 wm8962->reg_cache[WM8962_LEFT_DAC_VOLUME] |= WM8962_DAC_VU;
1741 wm8962->reg_cache[WM8962_RIGHT_DAC_VOLUME] |= WM8962_DAC_VU;
1742 wm8962->reg_cache[WM8962_SPKOUTL_VOLUME] |= WM8962_SPKOUT_VU;
1743 wm8962->reg_cache[WM8962_SPKOUTR_VOLUME] |= WM8962_SPKOUT_VU;
1744 wm8962->reg_cache[WM8962_HPOUTL_VOLUME] |= WM8962_HPOUT_VU;
1745 wm8962->reg_cache[WM8962_HPOUTR_VOLUME] |= WM8962_HPOUT_VU;
1746
1747 snd_soc_add_controls(codec, wm8962_snd_controls,
1748 ARRAY_SIZE(wm8962_snd_controls));
1749 wm8962_add_widgets(codec);
1750
1751 wm8962_init_beep(codec);
1752
1753 return 0;
1754
1755 err_enable:
1756 regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1757 err_get:
1758 regulator_bulk_free(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1759 err:
1760 kfree(wm8962);
1761 return ret;
1762 }
1763
1764 static int wm8962_remove(struct snd_soc_codec *codec)
1765 {
1766 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1767 int i;
1768
1769 wm8962_free_beep(codec);
1770 for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++)
1771 regulator_unregister_notifier(wm8962->supplies[i].consumer,
1772 &wm8962->disable_nb[i]);
1773 regulator_bulk_free(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1774
1775 return 0;
1776 }
1777
1778 static struct snd_soc_codec_driver soc_codec_dev_wm8962 = {
1779 .probe = wm8962_probe,
1780 .remove = wm8962_remove,
1781 .resume = wm8962_resume,
1782 .set_bias_level = wm8962_set_bias_level,
1783 .reg_cache_size = WM8962_MAX_REGISTER + 1,
1784 .reg_word_size = sizeof(u16),
1785 .reg_cache_default = wm8962_reg,
1786 .volatile_register = wm8962_volatile_register,
1787 .readable_register = wm8962_readable_register,
1788 };
1789
1790 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1791 static __devinit int wm8962_i2c_probe(struct i2c_client *i2c,
1792 const struct i2c_device_id *id)
1793 {
1794 struct wm8962_priv *wm8962;
1795 int ret;
1796
1797 wm8962 = kzalloc(sizeof(struct wm8962_priv), GFP_KERNEL);
1798 if (wm8962 == NULL)
1799 return -ENOMEM;
1800
1801 i2c_set_clientdata(i2c, wm8962);
1802
1803 ret = snd_soc_register_codec(&i2c->dev,
1804 &soc_codec_dev_wm8962, &wm8962_dai, 1);
1805 if (ret < 0)
1806 kfree(wm8962);
1807
1808 return ret;
1809 }
1810
1811 static __devexit int wm8962_i2c_remove(struct i2c_client *client)
1812 {
1813 snd_soc_unregister_codec(&client->dev);
1814 kfree(i2c_get_clientdata(client));
1815 return 0;
1816 }
1817
1818 static const struct i2c_device_id wm8962_i2c_id[] = {
1819 { "wm8962", 0 },
1820 { }
1821 };
1822 MODULE_DEVICE_TABLE(i2c, wm8962_i2c_id);
1823
1824 static struct i2c_driver wm8962_i2c_driver = {
1825 .driver = {
1826 .name = "WM8962",
1827 .owner = THIS_MODULE,
1828 },
1829 .probe = wm8962_i2c_probe,
1830 .remove = __devexit_p(wm8962_i2c_remove),
1831 .id_table = wm8962_i2c_id,
1832 };
1833 #endif
1834
1835 static int __init wm8962_modinit(void)
1836 {
1837 int ret;
1838 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1839 ret = i2c_add_driver(&wm8962_i2c_driver);
1840 if (ret != 0) {
1841 printk(KERN_ERR "Failed to register WM8962 I2C driver: %d\n",
1842 ret);
1843 }
1844 #endif
1845 return 0;
1846 }
1847 module_init(wm8962_modinit);
1848
1849 static void __exit wm8962_exit(void)
1850 {
1851 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1852 i2c_del_driver(&wm8962_i2c_driver);
1853 #endif
1854 }
1855 module_exit(wm8962_exit);
1856
1857 MODULE_DESCRIPTION("ASoC WM8962 driver");
1858 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
1859 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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