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[mirror_ubuntu-bionic-kernel.git] / sound / soc / codecs / wm8903.c
1 /*
2 * wm8903.c -- WM8903 ALSA SoC Audio driver
3 *
4 * Copyright 2008-12 Wolfson Microelectronics
5 * Copyright 2011-2012 NVIDIA, Inc.
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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 * TODO:
14 * - TDM mode configuration.
15 * - Digital microphone support.
16 */
17
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/init.h>
21 #include <linux/completion.h>
22 #include <linux/delay.h>
23 #include <linux/gpio.h>
24 #include <linux/pm.h>
25 #include <linux/i2c.h>
26 #include <linux/regmap.h>
27 #include <linux/slab.h>
28 #include <linux/irq.h>
29 #include <sound/core.h>
30 #include <sound/jack.h>
31 #include <sound/pcm.h>
32 #include <sound/pcm_params.h>
33 #include <sound/tlv.h>
34 #include <sound/soc.h>
35 #include <sound/initval.h>
36 #include <sound/wm8903.h>
37 #include <trace/events/asoc.h>
38
39 #include "wm8903.h"
40
41 /* Register defaults at reset */
42 static const struct reg_default wm8903_reg_defaults[] = {
43 { 4, 0x0018 }, /* R4 - Bias Control 0 */
44 { 5, 0x0000 }, /* R5 - VMID Control 0 */
45 { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */
46 { 8, 0x0001 }, /* R8 - Analogue DAC 0 */
47 { 10, 0x0001 }, /* R10 - Analogue ADC 0 */
48 { 12, 0x0000 }, /* R12 - Power Management 0 */
49 { 13, 0x0000 }, /* R13 - Power Management 1 */
50 { 14, 0x0000 }, /* R14 - Power Management 2 */
51 { 15, 0x0000 }, /* R15 - Power Management 3 */
52 { 16, 0x0000 }, /* R16 - Power Management 4 */
53 { 17, 0x0000 }, /* R17 - Power Management 5 */
54 { 18, 0x0000 }, /* R18 - Power Management 6 */
55 { 20, 0x0400 }, /* R20 - Clock Rates 0 */
56 { 21, 0x0D07 }, /* R21 - Clock Rates 1 */
57 { 22, 0x0000 }, /* R22 - Clock Rates 2 */
58 { 24, 0x0050 }, /* R24 - Audio Interface 0 */
59 { 25, 0x0242 }, /* R25 - Audio Interface 1 */
60 { 26, 0x0008 }, /* R26 - Audio Interface 2 */
61 { 27, 0x0022 }, /* R27 - Audio Interface 3 */
62 { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */
63 { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */
64 { 32, 0x0000 }, /* R32 - DAC Digital 0 */
65 { 33, 0x0000 }, /* R33 - DAC Digital 1 */
66 { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */
67 { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */
68 { 38, 0x0000 }, /* R38 - ADC Digital 0 */
69 { 39, 0x0073 }, /* R39 - Digital Microphone 0 */
70 { 40, 0x09BF }, /* R40 - DRC 0 */
71 { 41, 0x3241 }, /* R41 - DRC 1 */
72 { 42, 0x0020 }, /* R42 - DRC 2 */
73 { 43, 0x0000 }, /* R43 - DRC 3 */
74 { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */
75 { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */
76 { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */
77 { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */
78 { 50, 0x0008 }, /* R50 - Analogue Left Mix 0 */
79 { 51, 0x0004 }, /* R51 - Analogue Right Mix 0 */
80 { 52, 0x0000 }, /* R52 - Analogue Spk Mix Left 0 */
81 { 53, 0x0000 }, /* R53 - Analogue Spk Mix Left 1 */
82 { 54, 0x0000 }, /* R54 - Analogue Spk Mix Right 0 */
83 { 55, 0x0000 }, /* R55 - Analogue Spk Mix Right 1 */
84 { 57, 0x002D }, /* R57 - Analogue OUT1 Left */
85 { 58, 0x002D }, /* R58 - Analogue OUT1 Right */
86 { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */
87 { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */
88 { 62, 0x0139 }, /* R62 - Analogue OUT3 Left */
89 { 63, 0x0139 }, /* R63 - Analogue OUT3 Right */
90 { 64, 0x0000 }, /* R65 - Analogue SPK Output Control 0 */
91 { 67, 0x0010 }, /* R67 - DC Servo 0 */
92 { 69, 0x00A4 }, /* R69 - DC Servo 2 */
93 { 90, 0x0000 }, /* R90 - Analogue HP 0 */
94 { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */
95 { 98, 0x0000 }, /* R98 - Charge Pump 0 */
96 { 104, 0x0000 }, /* R104 - Class W 0 */
97 { 108, 0x0000 }, /* R108 - Write Sequencer 0 */
98 { 109, 0x0000 }, /* R109 - Write Sequencer 1 */
99 { 110, 0x0000 }, /* R110 - Write Sequencer 2 */
100 { 111, 0x0000 }, /* R111 - Write Sequencer 3 */
101 { 112, 0x0000 }, /* R112 - Write Sequencer 4 */
102 { 114, 0x0000 }, /* R114 - Control Interface */
103 { 116, 0x00A8 }, /* R116 - GPIO Control 1 */
104 { 117, 0x00A8 }, /* R117 - GPIO Control 2 */
105 { 118, 0x00A8 }, /* R118 - GPIO Control 3 */
106 { 119, 0x0220 }, /* R119 - GPIO Control 4 */
107 { 120, 0x01A0 }, /* R120 - GPIO Control 5 */
108 { 122, 0xFFFF }, /* R122 - Interrupt Status 1 Mask */
109 { 123, 0x0000 }, /* R123 - Interrupt Polarity 1 */
110 { 126, 0x0000 }, /* R126 - Interrupt Control */
111 { 129, 0x0000 }, /* R129 - Control Interface Test 1 */
112 { 149, 0x6810 }, /* R149 - Charge Pump Test 1 */
113 { 164, 0x0028 }, /* R164 - Clock Rate Test 4 */
114 { 172, 0x0000 }, /* R172 - Analogue Output Bias 0 */
115 };
116
117 struct wm8903_priv {
118 struct wm8903_platform_data *pdata;
119 struct device *dev;
120 struct snd_soc_codec *codec;
121 struct regmap *regmap;
122
123 int sysclk;
124 int irq;
125
126 int fs;
127 int deemph;
128
129 int dcs_pending;
130 int dcs_cache[4];
131
132 /* Reference count */
133 int class_w_users;
134
135 struct snd_soc_jack *mic_jack;
136 int mic_det;
137 int mic_short;
138 int mic_last_report;
139 int mic_delay;
140
141 #ifdef CONFIG_GPIOLIB
142 struct gpio_chip gpio_chip;
143 #endif
144 };
145
146 static bool wm8903_readable_register(struct device *dev, unsigned int reg)
147 {
148 switch (reg) {
149 case WM8903_SW_RESET_AND_ID:
150 case WM8903_REVISION_NUMBER:
151 case WM8903_BIAS_CONTROL_0:
152 case WM8903_VMID_CONTROL_0:
153 case WM8903_MIC_BIAS_CONTROL_0:
154 case WM8903_ANALOGUE_DAC_0:
155 case WM8903_ANALOGUE_ADC_0:
156 case WM8903_POWER_MANAGEMENT_0:
157 case WM8903_POWER_MANAGEMENT_1:
158 case WM8903_POWER_MANAGEMENT_2:
159 case WM8903_POWER_MANAGEMENT_3:
160 case WM8903_POWER_MANAGEMENT_4:
161 case WM8903_POWER_MANAGEMENT_5:
162 case WM8903_POWER_MANAGEMENT_6:
163 case WM8903_CLOCK_RATES_0:
164 case WM8903_CLOCK_RATES_1:
165 case WM8903_CLOCK_RATES_2:
166 case WM8903_AUDIO_INTERFACE_0:
167 case WM8903_AUDIO_INTERFACE_1:
168 case WM8903_AUDIO_INTERFACE_2:
169 case WM8903_AUDIO_INTERFACE_3:
170 case WM8903_DAC_DIGITAL_VOLUME_LEFT:
171 case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
172 case WM8903_DAC_DIGITAL_0:
173 case WM8903_DAC_DIGITAL_1:
174 case WM8903_ADC_DIGITAL_VOLUME_LEFT:
175 case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
176 case WM8903_ADC_DIGITAL_0:
177 case WM8903_DIGITAL_MICROPHONE_0:
178 case WM8903_DRC_0:
179 case WM8903_DRC_1:
180 case WM8903_DRC_2:
181 case WM8903_DRC_3:
182 case WM8903_ANALOGUE_LEFT_INPUT_0:
183 case WM8903_ANALOGUE_RIGHT_INPUT_0:
184 case WM8903_ANALOGUE_LEFT_INPUT_1:
185 case WM8903_ANALOGUE_RIGHT_INPUT_1:
186 case WM8903_ANALOGUE_LEFT_MIX_0:
187 case WM8903_ANALOGUE_RIGHT_MIX_0:
188 case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
189 case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
190 case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
191 case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
192 case WM8903_ANALOGUE_OUT1_LEFT:
193 case WM8903_ANALOGUE_OUT1_RIGHT:
194 case WM8903_ANALOGUE_OUT2_LEFT:
195 case WM8903_ANALOGUE_OUT2_RIGHT:
196 case WM8903_ANALOGUE_OUT3_LEFT:
197 case WM8903_ANALOGUE_OUT3_RIGHT:
198 case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
199 case WM8903_DC_SERVO_0:
200 case WM8903_DC_SERVO_2:
201 case WM8903_DC_SERVO_READBACK_1:
202 case WM8903_DC_SERVO_READBACK_2:
203 case WM8903_DC_SERVO_READBACK_3:
204 case WM8903_DC_SERVO_READBACK_4:
205 case WM8903_ANALOGUE_HP_0:
206 case WM8903_ANALOGUE_LINEOUT_0:
207 case WM8903_CHARGE_PUMP_0:
208 case WM8903_CLASS_W_0:
209 case WM8903_WRITE_SEQUENCER_0:
210 case WM8903_WRITE_SEQUENCER_1:
211 case WM8903_WRITE_SEQUENCER_2:
212 case WM8903_WRITE_SEQUENCER_3:
213 case WM8903_WRITE_SEQUENCER_4:
214 case WM8903_CONTROL_INTERFACE:
215 case WM8903_GPIO_CONTROL_1:
216 case WM8903_GPIO_CONTROL_2:
217 case WM8903_GPIO_CONTROL_3:
218 case WM8903_GPIO_CONTROL_4:
219 case WM8903_GPIO_CONTROL_5:
220 case WM8903_INTERRUPT_STATUS_1:
221 case WM8903_INTERRUPT_STATUS_1_MASK:
222 case WM8903_INTERRUPT_POLARITY_1:
223 case WM8903_INTERRUPT_CONTROL:
224 case WM8903_CLOCK_RATE_TEST_4:
225 case WM8903_ANALOGUE_OUTPUT_BIAS_0:
226 return true;
227 default:
228 return false;
229 }
230 }
231
232 static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
233 {
234 switch (reg) {
235 case WM8903_SW_RESET_AND_ID:
236 case WM8903_REVISION_NUMBER:
237 case WM8903_INTERRUPT_STATUS_1:
238 case WM8903_WRITE_SEQUENCER_4:
239 case WM8903_DC_SERVO_READBACK_1:
240 case WM8903_DC_SERVO_READBACK_2:
241 case WM8903_DC_SERVO_READBACK_3:
242 case WM8903_DC_SERVO_READBACK_4:
243 return 1;
244
245 default:
246 return 0;
247 }
248 }
249
250 static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
251 struct snd_kcontrol *kcontrol, int event)
252 {
253 WARN_ON(event != SND_SOC_DAPM_POST_PMU);
254 mdelay(4);
255
256 return 0;
257 }
258
259 static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
260 struct snd_kcontrol *kcontrol, int event)
261 {
262 struct snd_soc_codec *codec = w->codec;
263 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
264
265 switch (event) {
266 case SND_SOC_DAPM_POST_PMU:
267 wm8903->dcs_pending |= 1 << w->shift;
268 break;
269 case SND_SOC_DAPM_PRE_PMD:
270 snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
271 1 << w->shift, 0);
272 break;
273 }
274
275 return 0;
276 }
277
278 #define WM8903_DCS_MODE_WRITE_STOP 0
279 #define WM8903_DCS_MODE_START_STOP 2
280
281 static void wm8903_seq_notifier(struct snd_soc_dapm_context *dapm,
282 enum snd_soc_dapm_type event, int subseq)
283 {
284 struct snd_soc_codec *codec = container_of(dapm,
285 struct snd_soc_codec, dapm);
286 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
287 int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
288 int i, val;
289
290 /* Complete any pending DC servo starts */
291 if (wm8903->dcs_pending) {
292 dev_dbg(codec->dev, "Starting DC servo for %x\n",
293 wm8903->dcs_pending);
294
295 /* If we've no cached values then we need to do startup */
296 for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
297 if (!(wm8903->dcs_pending & (1 << i)))
298 continue;
299
300 if (wm8903->dcs_cache[i]) {
301 dev_dbg(codec->dev,
302 "Restore DC servo %d value %x\n",
303 3 - i, wm8903->dcs_cache[i]);
304
305 snd_soc_write(codec, WM8903_DC_SERVO_4 + i,
306 wm8903->dcs_cache[i] & 0xff);
307 } else {
308 dev_dbg(codec->dev,
309 "Calibrate DC servo %d\n", 3 - i);
310 dcs_mode = WM8903_DCS_MODE_START_STOP;
311 }
312 }
313
314 /* Don't trust the cache for analogue */
315 if (wm8903->class_w_users)
316 dcs_mode = WM8903_DCS_MODE_START_STOP;
317
318 snd_soc_update_bits(codec, WM8903_DC_SERVO_2,
319 WM8903_DCS_MODE_MASK, dcs_mode);
320
321 snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
322 WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
323
324 switch (dcs_mode) {
325 case WM8903_DCS_MODE_WRITE_STOP:
326 break;
327
328 case WM8903_DCS_MODE_START_STOP:
329 msleep(270);
330
331 /* Cache the measured offsets for digital */
332 if (wm8903->class_w_users)
333 break;
334
335 for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
336 if (!(wm8903->dcs_pending & (1 << i)))
337 continue;
338
339 val = snd_soc_read(codec,
340 WM8903_DC_SERVO_READBACK_1 + i);
341 dev_dbg(codec->dev, "DC servo %d: %x\n",
342 3 - i, val);
343 wm8903->dcs_cache[i] = val;
344 }
345 break;
346
347 default:
348 pr_warn("DCS mode %d delay not set\n", dcs_mode);
349 break;
350 }
351
352 wm8903->dcs_pending = 0;
353 }
354 }
355
356 /*
357 * When used with DAC outputs only the WM8903 charge pump supports
358 * operation in class W mode, providing very low power consumption
359 * when used with digital sources. Enable and disable this mode
360 * automatically depending on the mixer configuration.
361 *
362 * All the relevant controls are simple switches.
363 */
364 static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
365 struct snd_ctl_elem_value *ucontrol)
366 {
367 struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
368 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
369 u16 reg;
370 int ret;
371
372 reg = snd_soc_read(codec, WM8903_CLASS_W_0);
373
374 /* Turn it off if we're about to enable bypass */
375 if (ucontrol->value.integer.value[0]) {
376 if (wm8903->class_w_users == 0) {
377 dev_dbg(codec->dev, "Disabling Class W\n");
378 snd_soc_write(codec, WM8903_CLASS_W_0, reg &
379 ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
380 }
381 wm8903->class_w_users++;
382 }
383
384 /* Implement the change */
385 ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
386
387 /* If we've just disabled the last bypass path turn Class W on */
388 if (!ucontrol->value.integer.value[0]) {
389 if (wm8903->class_w_users == 1) {
390 dev_dbg(codec->dev, "Enabling Class W\n");
391 snd_soc_write(codec, WM8903_CLASS_W_0, reg |
392 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
393 }
394 wm8903->class_w_users--;
395 }
396
397 dev_dbg(codec->dev, "Bypass use count now %d\n",
398 wm8903->class_w_users);
399
400 return ret;
401 }
402
403 #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
404 SOC_SINGLE_EXT(xname, reg, shift, max, invert, \
405 snd_soc_dapm_get_volsw, wm8903_class_w_put)
406
407
408 static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
409
410 static int wm8903_set_deemph(struct snd_soc_codec *codec)
411 {
412 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
413 int val, i, best;
414
415 /* If we're using deemphasis select the nearest available sample
416 * rate.
417 */
418 if (wm8903->deemph) {
419 best = 1;
420 for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
421 if (abs(wm8903_deemph[i] - wm8903->fs) <
422 abs(wm8903_deemph[best] - wm8903->fs))
423 best = i;
424 }
425
426 val = best << WM8903_DEEMPH_SHIFT;
427 } else {
428 best = 0;
429 val = 0;
430 }
431
432 dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
433 best, wm8903_deemph[best]);
434
435 return snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1,
436 WM8903_DEEMPH_MASK, val);
437 }
438
439 static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
440 struct snd_ctl_elem_value *ucontrol)
441 {
442 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
443 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
444
445 ucontrol->value.enumerated.item[0] = wm8903->deemph;
446
447 return 0;
448 }
449
450 static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
451 struct snd_ctl_elem_value *ucontrol)
452 {
453 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
454 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
455 int deemph = ucontrol->value.enumerated.item[0];
456 int ret = 0;
457
458 if (deemph > 1)
459 return -EINVAL;
460
461 mutex_lock(&codec->mutex);
462 if (wm8903->deemph != deemph) {
463 wm8903->deemph = deemph;
464
465 wm8903_set_deemph(codec);
466
467 ret = 1;
468 }
469 mutex_unlock(&codec->mutex);
470
471 return ret;
472 }
473
474 /* ALSA can only do steps of .01dB */
475 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
476
477 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
478
479 static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
480 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
481
482 static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
483 static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
484 static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
485 static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
486 static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
487
488 static const char *hpf_mode_text[] = {
489 "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
490 };
491
492 static SOC_ENUM_SINGLE_DECL(hpf_mode,
493 WM8903_ADC_DIGITAL_0, 5, hpf_mode_text);
494
495 static const char *osr_text[] = {
496 "Low power", "High performance"
497 };
498
499 static SOC_ENUM_SINGLE_DECL(adc_osr,
500 WM8903_ANALOGUE_ADC_0, 0, osr_text);
501
502 static SOC_ENUM_SINGLE_DECL(dac_osr,
503 WM8903_DAC_DIGITAL_1, 0, osr_text);
504
505 static const char *drc_slope_text[] = {
506 "1", "1/2", "1/4", "1/8", "1/16", "0"
507 };
508
509 static SOC_ENUM_SINGLE_DECL(drc_slope_r0,
510 WM8903_DRC_2, 3, drc_slope_text);
511
512 static SOC_ENUM_SINGLE_DECL(drc_slope_r1,
513 WM8903_DRC_2, 0, drc_slope_text);
514
515 static const char *drc_attack_text[] = {
516 "instantaneous",
517 "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
518 "46.4ms", "92.8ms", "185.6ms"
519 };
520
521 static SOC_ENUM_SINGLE_DECL(drc_attack,
522 WM8903_DRC_1, 12, drc_attack_text);
523
524 static const char *drc_decay_text[] = {
525 "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
526 "23.87s", "47.56s"
527 };
528
529 static SOC_ENUM_SINGLE_DECL(drc_decay,
530 WM8903_DRC_1, 8, drc_decay_text);
531
532 static const char *drc_ff_delay_text[] = {
533 "5 samples", "9 samples"
534 };
535
536 static SOC_ENUM_SINGLE_DECL(drc_ff_delay,
537 WM8903_DRC_0, 5, drc_ff_delay_text);
538
539 static const char *drc_qr_decay_text[] = {
540 "0.725ms", "1.45ms", "5.8ms"
541 };
542
543 static SOC_ENUM_SINGLE_DECL(drc_qr_decay,
544 WM8903_DRC_1, 4, drc_qr_decay_text);
545
546 static const char *drc_smoothing_text[] = {
547 "Low", "Medium", "High"
548 };
549
550 static SOC_ENUM_SINGLE_DECL(drc_smoothing,
551 WM8903_DRC_0, 11, drc_smoothing_text);
552
553 static const char *soft_mute_text[] = {
554 "Fast (fs/2)", "Slow (fs/32)"
555 };
556
557 static SOC_ENUM_SINGLE_DECL(soft_mute,
558 WM8903_DAC_DIGITAL_1, 10, soft_mute_text);
559
560 static const char *mute_mode_text[] = {
561 "Hard", "Soft"
562 };
563
564 static SOC_ENUM_SINGLE_DECL(mute_mode,
565 WM8903_DAC_DIGITAL_1, 9, mute_mode_text);
566
567 static const char *companding_text[] = {
568 "ulaw", "alaw"
569 };
570
571 static SOC_ENUM_SINGLE_DECL(dac_companding,
572 WM8903_AUDIO_INTERFACE_0, 0, companding_text);
573
574 static SOC_ENUM_SINGLE_DECL(adc_companding,
575 WM8903_AUDIO_INTERFACE_0, 2, companding_text);
576
577 static const char *input_mode_text[] = {
578 "Single-Ended", "Differential Line", "Differential Mic"
579 };
580
581 static SOC_ENUM_SINGLE_DECL(linput_mode_enum,
582 WM8903_ANALOGUE_LEFT_INPUT_1, 0, input_mode_text);
583
584 static SOC_ENUM_SINGLE_DECL(rinput_mode_enum,
585 WM8903_ANALOGUE_RIGHT_INPUT_1, 0, input_mode_text);
586
587 static const char *linput_mux_text[] = {
588 "IN1L", "IN2L", "IN3L"
589 };
590
591 static SOC_ENUM_SINGLE_DECL(linput_enum,
592 WM8903_ANALOGUE_LEFT_INPUT_1, 2, linput_mux_text);
593
594 static SOC_ENUM_SINGLE_DECL(linput_inv_enum,
595 WM8903_ANALOGUE_LEFT_INPUT_1, 4, linput_mux_text);
596
597 static const char *rinput_mux_text[] = {
598 "IN1R", "IN2R", "IN3R"
599 };
600
601 static SOC_ENUM_SINGLE_DECL(rinput_enum,
602 WM8903_ANALOGUE_RIGHT_INPUT_1, 2, rinput_mux_text);
603
604 static SOC_ENUM_SINGLE_DECL(rinput_inv_enum,
605 WM8903_ANALOGUE_RIGHT_INPUT_1, 4, rinput_mux_text);
606
607
608 static const char *sidetone_text[] = {
609 "None", "Left", "Right"
610 };
611
612 static SOC_ENUM_SINGLE_DECL(lsidetone_enum,
613 WM8903_DAC_DIGITAL_0, 2, sidetone_text);
614
615 static SOC_ENUM_SINGLE_DECL(rsidetone_enum,
616 WM8903_DAC_DIGITAL_0, 0, sidetone_text);
617
618 static const char *adcinput_text[] = {
619 "ADC", "DMIC"
620 };
621
622 static SOC_ENUM_SINGLE_DECL(adcinput_enum,
623 WM8903_CLOCK_RATE_TEST_4, 9, adcinput_text);
624
625 static const char *aif_text[] = {
626 "Left", "Right"
627 };
628
629 static SOC_ENUM_SINGLE_DECL(lcapture_enum,
630 WM8903_AUDIO_INTERFACE_0, 7, aif_text);
631
632 static SOC_ENUM_SINGLE_DECL(rcapture_enum,
633 WM8903_AUDIO_INTERFACE_0, 6, aif_text);
634
635 static SOC_ENUM_SINGLE_DECL(lplay_enum,
636 WM8903_AUDIO_INTERFACE_0, 5, aif_text);
637
638 static SOC_ENUM_SINGLE_DECL(rplay_enum,
639 WM8903_AUDIO_INTERFACE_0, 4, aif_text);
640
641 static const struct snd_kcontrol_new wm8903_snd_controls[] = {
642
643 /* Input PGAs - No TLV since the scale depends on PGA mode */
644 SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
645 7, 1, 1),
646 SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
647 0, 31, 0),
648 SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
649 6, 1, 0),
650
651 SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
652 7, 1, 1),
653 SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
654 0, 31, 0),
655 SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
656 6, 1, 0),
657
658 /* ADCs */
659 SOC_ENUM("ADC OSR", adc_osr),
660 SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
661 SOC_ENUM("HPF Mode", hpf_mode),
662 SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
663 SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
664 SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
665 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
666 drc_tlv_thresh),
667 SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
668 SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
669 SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
670 SOC_ENUM("DRC Attack Rate", drc_attack),
671 SOC_ENUM("DRC Decay Rate", drc_decay),
672 SOC_ENUM("DRC FF Delay", drc_ff_delay),
673 SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
674 SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
675 SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
676 SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
677 SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
678 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
679 SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
680 SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
681
682 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
683 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
684 SOC_ENUM("ADC Companding Mode", adc_companding),
685 SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
686
687 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
688 12, 0, digital_sidetone_tlv),
689
690 /* DAC */
691 SOC_ENUM("DAC OSR", dac_osr),
692 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
693 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
694 SOC_ENUM("DAC Soft Mute Rate", soft_mute),
695 SOC_ENUM("DAC Mute Mode", mute_mode),
696 SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
697 SOC_ENUM("DAC Companding Mode", dac_companding),
698 SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
699 SOC_SINGLE_TLV("DAC Boost Volume", WM8903_AUDIO_INTERFACE_0, 9, 3, 0,
700 dac_boost_tlv),
701 SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
702 wm8903_get_deemph, wm8903_put_deemph),
703
704 /* Headphones */
705 SOC_DOUBLE_R("Headphone Switch",
706 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
707 8, 1, 1),
708 SOC_DOUBLE_R("Headphone ZC Switch",
709 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
710 6, 1, 0),
711 SOC_DOUBLE_R_TLV("Headphone Volume",
712 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
713 0, 63, 0, out_tlv),
714
715 /* Line out */
716 SOC_DOUBLE_R("Line Out Switch",
717 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
718 8, 1, 1),
719 SOC_DOUBLE_R("Line Out ZC Switch",
720 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
721 6, 1, 0),
722 SOC_DOUBLE_R_TLV("Line Out Volume",
723 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
724 0, 63, 0, out_tlv),
725
726 /* Speaker */
727 SOC_DOUBLE_R("Speaker Switch",
728 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
729 SOC_DOUBLE_R("Speaker ZC Switch",
730 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
731 SOC_DOUBLE_R_TLV("Speaker Volume",
732 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
733 0, 63, 0, out_tlv),
734 };
735
736 static const struct snd_kcontrol_new linput_mode_mux =
737 SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
738
739 static const struct snd_kcontrol_new rinput_mode_mux =
740 SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
741
742 static const struct snd_kcontrol_new linput_mux =
743 SOC_DAPM_ENUM("Left Input Mux", linput_enum);
744
745 static const struct snd_kcontrol_new linput_inv_mux =
746 SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
747
748 static const struct snd_kcontrol_new rinput_mux =
749 SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
750
751 static const struct snd_kcontrol_new rinput_inv_mux =
752 SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
753
754 static const struct snd_kcontrol_new lsidetone_mux =
755 SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
756
757 static const struct snd_kcontrol_new rsidetone_mux =
758 SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
759
760 static const struct snd_kcontrol_new adcinput_mux =
761 SOC_DAPM_ENUM("ADC Input", adcinput_enum);
762
763 static const struct snd_kcontrol_new lcapture_mux =
764 SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
765
766 static const struct snd_kcontrol_new rcapture_mux =
767 SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
768
769 static const struct snd_kcontrol_new lplay_mux =
770 SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
771
772 static const struct snd_kcontrol_new rplay_mux =
773 SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
774
775 static const struct snd_kcontrol_new left_output_mixer[] = {
776 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
777 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
778 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
779 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
780 };
781
782 static const struct snd_kcontrol_new right_output_mixer[] = {
783 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
784 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
785 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
786 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
787 };
788
789 static const struct snd_kcontrol_new left_speaker_mixer[] = {
790 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
791 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
792 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
793 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
794 0, 1, 0),
795 };
796
797 static const struct snd_kcontrol_new right_speaker_mixer[] = {
798 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
799 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
800 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
801 1, 1, 0),
802 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
803 0, 1, 0),
804 };
805
806 static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
807 SND_SOC_DAPM_INPUT("IN1L"),
808 SND_SOC_DAPM_INPUT("IN1R"),
809 SND_SOC_DAPM_INPUT("IN2L"),
810 SND_SOC_DAPM_INPUT("IN2R"),
811 SND_SOC_DAPM_INPUT("IN3L"),
812 SND_SOC_DAPM_INPUT("IN3R"),
813 SND_SOC_DAPM_INPUT("DMICDAT"),
814
815 SND_SOC_DAPM_OUTPUT("HPOUTL"),
816 SND_SOC_DAPM_OUTPUT("HPOUTR"),
817 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
818 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
819 SND_SOC_DAPM_OUTPUT("LOP"),
820 SND_SOC_DAPM_OUTPUT("LON"),
821 SND_SOC_DAPM_OUTPUT("ROP"),
822 SND_SOC_DAPM_OUTPUT("RON"),
823
824 SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
825
826 SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
827 SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
828 &linput_inv_mux),
829 SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
830
831 SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
832 SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
833 &rinput_inv_mux),
834 SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
835
836 SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
837 SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
838
839 SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
840 SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
841
842 SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
843 SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
844
845 SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
846 SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
847
848 SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
849 SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
850
851 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
852 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
853
854 SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
855 SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
856
857 SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
858 SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
859
860 SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
861 SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
862
863 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
864 left_output_mixer, ARRAY_SIZE(left_output_mixer)),
865 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
866 right_output_mixer, ARRAY_SIZE(right_output_mixer)),
867
868 SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
869 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
870 SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
871 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
872
873 SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
874 1, 0, NULL, 0),
875 SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
876 0, 0, NULL, 0),
877
878 SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
879 NULL, 0),
880 SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
881 NULL, 0),
882
883 SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
884 SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
885 SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
886 SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
887 SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
888 SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
889 SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
890 SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
891
892 SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
893 NULL, 0),
894 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
895 NULL, 0),
896 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
897 NULL, 0),
898 SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
899 NULL, 0),
900 SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
901 NULL, 0),
902 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
903 NULL, 0),
904 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
905 NULL, 0),
906 SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
907 NULL, 0),
908
909 SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
910 SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
911 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
912 SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
913 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
914 SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
915 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
916 SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
917 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
918
919 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
920 NULL, 0),
921 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
922 NULL, 0),
923
924 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
925 wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
926 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
927 SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
928 };
929
930 static const struct snd_soc_dapm_route wm8903_intercon[] = {
931
932 { "CLK_DSP", NULL, "CLK_SYS" },
933 { "MICBIAS", NULL, "CLK_SYS" },
934 { "HPL_DCS", NULL, "CLK_SYS" },
935 { "HPR_DCS", NULL, "CLK_SYS" },
936 { "LINEOUTL_DCS", NULL, "CLK_SYS" },
937 { "LINEOUTR_DCS", NULL, "CLK_SYS" },
938
939 { "Left Input Mux", "IN1L", "IN1L" },
940 { "Left Input Mux", "IN2L", "IN2L" },
941 { "Left Input Mux", "IN3L", "IN3L" },
942
943 { "Left Input Inverting Mux", "IN1L", "IN1L" },
944 { "Left Input Inverting Mux", "IN2L", "IN2L" },
945 { "Left Input Inverting Mux", "IN3L", "IN3L" },
946
947 { "Right Input Mux", "IN1R", "IN1R" },
948 { "Right Input Mux", "IN2R", "IN2R" },
949 { "Right Input Mux", "IN3R", "IN3R" },
950
951 { "Right Input Inverting Mux", "IN1R", "IN1R" },
952 { "Right Input Inverting Mux", "IN2R", "IN2R" },
953 { "Right Input Inverting Mux", "IN3R", "IN3R" },
954
955 { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
956 { "Left Input Mode Mux", "Differential Line",
957 "Left Input Mux" },
958 { "Left Input Mode Mux", "Differential Line",
959 "Left Input Inverting Mux" },
960 { "Left Input Mode Mux", "Differential Mic",
961 "Left Input Mux" },
962 { "Left Input Mode Mux", "Differential Mic",
963 "Left Input Inverting Mux" },
964
965 { "Right Input Mode Mux", "Single-Ended",
966 "Right Input Inverting Mux" },
967 { "Right Input Mode Mux", "Differential Line",
968 "Right Input Mux" },
969 { "Right Input Mode Mux", "Differential Line",
970 "Right Input Inverting Mux" },
971 { "Right Input Mode Mux", "Differential Mic",
972 "Right Input Mux" },
973 { "Right Input Mode Mux", "Differential Mic",
974 "Right Input Inverting Mux" },
975
976 { "Left Input PGA", NULL, "Left Input Mode Mux" },
977 { "Right Input PGA", NULL, "Right Input Mode Mux" },
978
979 { "Left ADC Input", "ADC", "Left Input PGA" },
980 { "Left ADC Input", "DMIC", "DMICDAT" },
981 { "Right ADC Input", "ADC", "Right Input PGA" },
982 { "Right ADC Input", "DMIC", "DMICDAT" },
983
984 { "Left Capture Mux", "Left", "ADCL" },
985 { "Left Capture Mux", "Right", "ADCR" },
986
987 { "Right Capture Mux", "Left", "ADCL" },
988 { "Right Capture Mux", "Right", "ADCR" },
989
990 { "AIFTXL", NULL, "Left Capture Mux" },
991 { "AIFTXR", NULL, "Right Capture Mux" },
992
993 { "ADCL", NULL, "Left ADC Input" },
994 { "ADCL", NULL, "CLK_DSP" },
995 { "ADCR", NULL, "Right ADC Input" },
996 { "ADCR", NULL, "CLK_DSP" },
997
998 { "Left Playback Mux", "Left", "AIFRXL" },
999 { "Left Playback Mux", "Right", "AIFRXR" },
1000
1001 { "Right Playback Mux", "Left", "AIFRXL" },
1002 { "Right Playback Mux", "Right", "AIFRXR" },
1003
1004 { "DACL Sidetone", "Left", "ADCL" },
1005 { "DACL Sidetone", "Right", "ADCR" },
1006 { "DACR Sidetone", "Left", "ADCL" },
1007 { "DACR Sidetone", "Right", "ADCR" },
1008
1009 { "DACL", NULL, "Left Playback Mux" },
1010 { "DACL", NULL, "DACL Sidetone" },
1011 { "DACL", NULL, "CLK_DSP" },
1012
1013 { "DACR", NULL, "Right Playback Mux" },
1014 { "DACR", NULL, "DACR Sidetone" },
1015 { "DACR", NULL, "CLK_DSP" },
1016
1017 { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1018 { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1019 { "Left Output Mixer", "DACL Switch", "DACL" },
1020 { "Left Output Mixer", "DACR Switch", "DACR" },
1021
1022 { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1023 { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1024 { "Right Output Mixer", "DACL Switch", "DACL" },
1025 { "Right Output Mixer", "DACR Switch", "DACR" },
1026
1027 { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1028 { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1029 { "Left Speaker Mixer", "DACL Switch", "DACL" },
1030 { "Left Speaker Mixer", "DACR Switch", "DACR" },
1031
1032 { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1033 { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1034 { "Right Speaker Mixer", "DACL Switch", "DACL" },
1035 { "Right Speaker Mixer", "DACR Switch", "DACR" },
1036
1037 { "Left Line Output PGA", NULL, "Left Output Mixer" },
1038 { "Right Line Output PGA", NULL, "Right Output Mixer" },
1039
1040 { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
1041 { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
1042
1043 { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
1044 { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
1045
1046 { "HPL_ENA", NULL, "Left Headphone Output PGA" },
1047 { "HPR_ENA", NULL, "Right Headphone Output PGA" },
1048 { "HPL_ENA_DLY", NULL, "HPL_ENA" },
1049 { "HPR_ENA_DLY", NULL, "HPR_ENA" },
1050 { "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
1051 { "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
1052 { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
1053 { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
1054
1055 { "HPL_DCS", NULL, "DCS Master" },
1056 { "HPR_DCS", NULL, "DCS Master" },
1057 { "LINEOUTL_DCS", NULL, "DCS Master" },
1058 { "LINEOUTR_DCS", NULL, "DCS Master" },
1059
1060 { "HPL_DCS", NULL, "HPL_ENA_DLY" },
1061 { "HPR_DCS", NULL, "HPR_ENA_DLY" },
1062 { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
1063 { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
1064
1065 { "HPL_ENA_OUTP", NULL, "HPL_DCS" },
1066 { "HPR_ENA_OUTP", NULL, "HPR_DCS" },
1067 { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
1068 { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
1069
1070 { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
1071 { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
1072 { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
1073 { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
1074
1075 { "HPOUTL", NULL, "HPL_RMV_SHORT" },
1076 { "HPOUTR", NULL, "HPR_RMV_SHORT" },
1077 { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
1078 { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
1079
1080 { "LOP", NULL, "Left Speaker PGA" },
1081 { "LON", NULL, "Left Speaker PGA" },
1082
1083 { "ROP", NULL, "Right Speaker PGA" },
1084 { "RON", NULL, "Right Speaker PGA" },
1085
1086 { "Charge Pump", NULL, "CLK_DSP" },
1087
1088 { "Left Headphone Output PGA", NULL, "Charge Pump" },
1089 { "Right Headphone Output PGA", NULL, "Charge Pump" },
1090 { "Left Line Output PGA", NULL, "Charge Pump" },
1091 { "Right Line Output PGA", NULL, "Charge Pump" },
1092 };
1093
1094 static int wm8903_set_bias_level(struct snd_soc_codec *codec,
1095 enum snd_soc_bias_level level)
1096 {
1097 switch (level) {
1098 case SND_SOC_BIAS_ON:
1099 break;
1100
1101 case SND_SOC_BIAS_PREPARE:
1102 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1103 WM8903_VMID_RES_MASK,
1104 WM8903_VMID_RES_50K);
1105 break;
1106
1107 case SND_SOC_BIAS_STANDBY:
1108 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1109 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1110 WM8903_POBCTRL | WM8903_ISEL_MASK |
1111 WM8903_STARTUP_BIAS_ENA |
1112 WM8903_BIAS_ENA,
1113 WM8903_POBCTRL |
1114 (2 << WM8903_ISEL_SHIFT) |
1115 WM8903_STARTUP_BIAS_ENA);
1116
1117 snd_soc_update_bits(codec,
1118 WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1119 WM8903_SPK_DISCHARGE,
1120 WM8903_SPK_DISCHARGE);
1121
1122 msleep(33);
1123
1124 snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
1125 WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1126 WM8903_SPKL_ENA | WM8903_SPKR_ENA);
1127
1128 snd_soc_update_bits(codec,
1129 WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1130 WM8903_SPK_DISCHARGE, 0);
1131
1132 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1133 WM8903_VMID_TIE_ENA |
1134 WM8903_BUFIO_ENA |
1135 WM8903_VMID_IO_ENA |
1136 WM8903_VMID_SOFT_MASK |
1137 WM8903_VMID_RES_MASK |
1138 WM8903_VMID_BUF_ENA,
1139 WM8903_VMID_TIE_ENA |
1140 WM8903_BUFIO_ENA |
1141 WM8903_VMID_IO_ENA |
1142 (2 << WM8903_VMID_SOFT_SHIFT) |
1143 WM8903_VMID_RES_250K |
1144 WM8903_VMID_BUF_ENA);
1145
1146 msleep(129);
1147
1148 snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
1149 WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1150 0);
1151
1152 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1153 WM8903_VMID_SOFT_MASK, 0);
1154
1155 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1156 WM8903_VMID_RES_MASK,
1157 WM8903_VMID_RES_50K);
1158
1159 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1160 WM8903_BIAS_ENA | WM8903_POBCTRL,
1161 WM8903_BIAS_ENA);
1162
1163 /* By default no bypass paths are enabled so
1164 * enable Class W support.
1165 */
1166 dev_dbg(codec->dev, "Enabling Class W\n");
1167 snd_soc_update_bits(codec, WM8903_CLASS_W_0,
1168 WM8903_CP_DYN_FREQ |
1169 WM8903_CP_DYN_V,
1170 WM8903_CP_DYN_FREQ |
1171 WM8903_CP_DYN_V);
1172 }
1173
1174 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1175 WM8903_VMID_RES_MASK,
1176 WM8903_VMID_RES_250K);
1177 break;
1178
1179 case SND_SOC_BIAS_OFF:
1180 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1181 WM8903_BIAS_ENA, 0);
1182
1183 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1184 WM8903_VMID_SOFT_MASK,
1185 2 << WM8903_VMID_SOFT_SHIFT);
1186
1187 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1188 WM8903_VMID_BUF_ENA, 0);
1189
1190 msleep(290);
1191
1192 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1193 WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
1194 WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
1195 WM8903_VMID_SOFT_MASK |
1196 WM8903_VMID_BUF_ENA, 0);
1197
1198 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1199 WM8903_STARTUP_BIAS_ENA, 0);
1200 break;
1201 }
1202
1203 codec->dapm.bias_level = level;
1204
1205 return 0;
1206 }
1207
1208 static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1209 int clk_id, unsigned int freq, int dir)
1210 {
1211 struct snd_soc_codec *codec = codec_dai->codec;
1212 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1213
1214 wm8903->sysclk = freq;
1215
1216 return 0;
1217 }
1218
1219 static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
1220 unsigned int fmt)
1221 {
1222 struct snd_soc_codec *codec = codec_dai->codec;
1223 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1224
1225 aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
1226 WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
1227
1228 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1229 case SND_SOC_DAIFMT_CBS_CFS:
1230 break;
1231 case SND_SOC_DAIFMT_CBS_CFM:
1232 aif1 |= WM8903_LRCLK_DIR;
1233 break;
1234 case SND_SOC_DAIFMT_CBM_CFM:
1235 aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
1236 break;
1237 case SND_SOC_DAIFMT_CBM_CFS:
1238 aif1 |= WM8903_BCLK_DIR;
1239 break;
1240 default:
1241 return -EINVAL;
1242 }
1243
1244 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1245 case SND_SOC_DAIFMT_DSP_A:
1246 aif1 |= 0x3;
1247 break;
1248 case SND_SOC_DAIFMT_DSP_B:
1249 aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
1250 break;
1251 case SND_SOC_DAIFMT_I2S:
1252 aif1 |= 0x2;
1253 break;
1254 case SND_SOC_DAIFMT_RIGHT_J:
1255 aif1 |= 0x1;
1256 break;
1257 case SND_SOC_DAIFMT_LEFT_J:
1258 break;
1259 default:
1260 return -EINVAL;
1261 }
1262
1263 /* Clock inversion */
1264 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1265 case SND_SOC_DAIFMT_DSP_A:
1266 case SND_SOC_DAIFMT_DSP_B:
1267 /* frame inversion not valid for DSP modes */
1268 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1269 case SND_SOC_DAIFMT_NB_NF:
1270 break;
1271 case SND_SOC_DAIFMT_IB_NF:
1272 aif1 |= WM8903_AIF_BCLK_INV;
1273 break;
1274 default:
1275 return -EINVAL;
1276 }
1277 break;
1278 case SND_SOC_DAIFMT_I2S:
1279 case SND_SOC_DAIFMT_RIGHT_J:
1280 case SND_SOC_DAIFMT_LEFT_J:
1281 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1282 case SND_SOC_DAIFMT_NB_NF:
1283 break;
1284 case SND_SOC_DAIFMT_IB_IF:
1285 aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
1286 break;
1287 case SND_SOC_DAIFMT_IB_NF:
1288 aif1 |= WM8903_AIF_BCLK_INV;
1289 break;
1290 case SND_SOC_DAIFMT_NB_IF:
1291 aif1 |= WM8903_AIF_LRCLK_INV;
1292 break;
1293 default:
1294 return -EINVAL;
1295 }
1296 break;
1297 default:
1298 return -EINVAL;
1299 }
1300
1301 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1302
1303 return 0;
1304 }
1305
1306 static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1307 {
1308 struct snd_soc_codec *codec = codec_dai->codec;
1309 u16 reg;
1310
1311 reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1312
1313 if (mute)
1314 reg |= WM8903_DAC_MUTE;
1315 else
1316 reg &= ~WM8903_DAC_MUTE;
1317
1318 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
1319
1320 return 0;
1321 }
1322
1323 /* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
1324 * for optimal performance so we list the lower rates first and match
1325 * on the last match we find. */
1326 static struct {
1327 int div;
1328 int rate;
1329 int mode;
1330 int mclk_div;
1331 } clk_sys_ratios[] = {
1332 { 64, 0x0, 0x0, 1 },
1333 { 68, 0x0, 0x1, 1 },
1334 { 125, 0x0, 0x2, 1 },
1335 { 128, 0x1, 0x0, 1 },
1336 { 136, 0x1, 0x1, 1 },
1337 { 192, 0x2, 0x0, 1 },
1338 { 204, 0x2, 0x1, 1 },
1339
1340 { 64, 0x0, 0x0, 2 },
1341 { 68, 0x0, 0x1, 2 },
1342 { 125, 0x0, 0x2, 2 },
1343 { 128, 0x1, 0x0, 2 },
1344 { 136, 0x1, 0x1, 2 },
1345 { 192, 0x2, 0x0, 2 },
1346 { 204, 0x2, 0x1, 2 },
1347
1348 { 250, 0x2, 0x2, 1 },
1349 { 256, 0x3, 0x0, 1 },
1350 { 272, 0x3, 0x1, 1 },
1351 { 384, 0x4, 0x0, 1 },
1352 { 408, 0x4, 0x1, 1 },
1353 { 375, 0x4, 0x2, 1 },
1354 { 512, 0x5, 0x0, 1 },
1355 { 544, 0x5, 0x1, 1 },
1356 { 500, 0x5, 0x2, 1 },
1357 { 768, 0x6, 0x0, 1 },
1358 { 816, 0x6, 0x1, 1 },
1359 { 750, 0x6, 0x2, 1 },
1360 { 1024, 0x7, 0x0, 1 },
1361 { 1088, 0x7, 0x1, 1 },
1362 { 1000, 0x7, 0x2, 1 },
1363 { 1408, 0x8, 0x0, 1 },
1364 { 1496, 0x8, 0x1, 1 },
1365 { 1536, 0x9, 0x0, 1 },
1366 { 1632, 0x9, 0x1, 1 },
1367 { 1500, 0x9, 0x2, 1 },
1368
1369 { 250, 0x2, 0x2, 2 },
1370 { 256, 0x3, 0x0, 2 },
1371 { 272, 0x3, 0x1, 2 },
1372 { 384, 0x4, 0x0, 2 },
1373 { 408, 0x4, 0x1, 2 },
1374 { 375, 0x4, 0x2, 2 },
1375 { 512, 0x5, 0x0, 2 },
1376 { 544, 0x5, 0x1, 2 },
1377 { 500, 0x5, 0x2, 2 },
1378 { 768, 0x6, 0x0, 2 },
1379 { 816, 0x6, 0x1, 2 },
1380 { 750, 0x6, 0x2, 2 },
1381 { 1024, 0x7, 0x0, 2 },
1382 { 1088, 0x7, 0x1, 2 },
1383 { 1000, 0x7, 0x2, 2 },
1384 { 1408, 0x8, 0x0, 2 },
1385 { 1496, 0x8, 0x1, 2 },
1386 { 1536, 0x9, 0x0, 2 },
1387 { 1632, 0x9, 0x1, 2 },
1388 { 1500, 0x9, 0x2, 2 },
1389 };
1390
1391 /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
1392 static struct {
1393 int ratio;
1394 int div;
1395 } bclk_divs[] = {
1396 { 10, 0 },
1397 { 20, 2 },
1398 { 30, 3 },
1399 { 40, 4 },
1400 { 50, 5 },
1401 { 60, 7 },
1402 { 80, 8 },
1403 { 100, 9 },
1404 { 120, 11 },
1405 { 160, 12 },
1406 { 200, 13 },
1407 { 220, 14 },
1408 { 240, 15 },
1409 { 300, 17 },
1410 { 320, 18 },
1411 { 440, 19 },
1412 { 480, 20 },
1413 };
1414
1415 /* Sample rates for DSP */
1416 static struct {
1417 int rate;
1418 int value;
1419 } sample_rates[] = {
1420 { 8000, 0 },
1421 { 11025, 1 },
1422 { 12000, 2 },
1423 { 16000, 3 },
1424 { 22050, 4 },
1425 { 24000, 5 },
1426 { 32000, 6 },
1427 { 44100, 7 },
1428 { 48000, 8 },
1429 { 88200, 9 },
1430 { 96000, 10 },
1431 { 0, 0 },
1432 };
1433
1434 static int wm8903_hw_params(struct snd_pcm_substream *substream,
1435 struct snd_pcm_hw_params *params,
1436 struct snd_soc_dai *dai)
1437 {
1438 struct snd_soc_codec *codec = dai->codec;
1439 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1440 int fs = params_rate(params);
1441 int bclk;
1442 int bclk_div;
1443 int i;
1444 int dsp_config;
1445 int clk_config;
1446 int best_val;
1447 int cur_val;
1448 int clk_sys;
1449
1450 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1451 u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
1452 u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
1453 u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
1454 u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
1455 u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1456
1457 /* Enable sloping stopband filter for low sample rates */
1458 if (fs <= 24000)
1459 dac_digital1 |= WM8903_DAC_SB_FILT;
1460 else
1461 dac_digital1 &= ~WM8903_DAC_SB_FILT;
1462
1463 /* Configure sample rate logic for DSP - choose nearest rate */
1464 dsp_config = 0;
1465 best_val = abs(sample_rates[dsp_config].rate - fs);
1466 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1467 cur_val = abs(sample_rates[i].rate - fs);
1468 if (cur_val <= best_val) {
1469 dsp_config = i;
1470 best_val = cur_val;
1471 }
1472 }
1473
1474 dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
1475 clock1 &= ~WM8903_SAMPLE_RATE_MASK;
1476 clock1 |= sample_rates[dsp_config].value;
1477
1478 aif1 &= ~WM8903_AIF_WL_MASK;
1479 bclk = 2 * fs;
1480 switch (params_format(params)) {
1481 case SNDRV_PCM_FORMAT_S16_LE:
1482 bclk *= 16;
1483 break;
1484 case SNDRV_PCM_FORMAT_S20_3LE:
1485 bclk *= 20;
1486 aif1 |= 0x4;
1487 break;
1488 case SNDRV_PCM_FORMAT_S24_LE:
1489 bclk *= 24;
1490 aif1 |= 0x8;
1491 break;
1492 case SNDRV_PCM_FORMAT_S32_LE:
1493 bclk *= 32;
1494 aif1 |= 0xc;
1495 break;
1496 default:
1497 return -EINVAL;
1498 }
1499
1500 dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
1501 wm8903->sysclk, fs);
1502
1503 /* We may not have an MCLK which allows us to generate exactly
1504 * the clock we want, particularly with USB derived inputs, so
1505 * approximate.
1506 */
1507 clk_config = 0;
1508 best_val = abs((wm8903->sysclk /
1509 (clk_sys_ratios[0].mclk_div *
1510 clk_sys_ratios[0].div)) - fs);
1511 for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
1512 cur_val = abs((wm8903->sysclk /
1513 (clk_sys_ratios[i].mclk_div *
1514 clk_sys_ratios[i].div)) - fs);
1515
1516 if (cur_val <= best_val) {
1517 clk_config = i;
1518 best_val = cur_val;
1519 }
1520 }
1521
1522 if (clk_sys_ratios[clk_config].mclk_div == 2) {
1523 clock0 |= WM8903_MCLKDIV2;
1524 clk_sys = wm8903->sysclk / 2;
1525 } else {
1526 clock0 &= ~WM8903_MCLKDIV2;
1527 clk_sys = wm8903->sysclk;
1528 }
1529
1530 clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
1531 WM8903_CLK_SYS_MODE_MASK);
1532 clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
1533 clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
1534
1535 dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1536 clk_sys_ratios[clk_config].rate,
1537 clk_sys_ratios[clk_config].mode,
1538 clk_sys_ratios[clk_config].div);
1539
1540 dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
1541
1542 /* We may not get quite the right frequency if using
1543 * approximate clocks so look for the closest match that is
1544 * higher than the target (we need to ensure that there enough
1545 * BCLKs to clock out the samples).
1546 */
1547 bclk_div = 0;
1548 best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
1549 i = 1;
1550 while (i < ARRAY_SIZE(bclk_divs)) {
1551 cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
1552 if (cur_val < 0) /* BCLK table is sorted */
1553 break;
1554 bclk_div = i;
1555 best_val = cur_val;
1556 i++;
1557 }
1558
1559 aif2 &= ~WM8903_BCLK_DIV_MASK;
1560 aif3 &= ~WM8903_LRCLK_RATE_MASK;
1561
1562 dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1563 bclk_divs[bclk_div].ratio / 10, bclk,
1564 (clk_sys * 10) / bclk_divs[bclk_div].ratio);
1565
1566 aif2 |= bclk_divs[bclk_div].div;
1567 aif3 |= bclk / fs;
1568
1569 wm8903->fs = params_rate(params);
1570 wm8903_set_deemph(codec);
1571
1572 snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
1573 snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
1574 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1575 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
1576 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
1577 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
1578
1579 return 0;
1580 }
1581
1582 /**
1583 * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
1584 *
1585 * @codec: WM8903 codec
1586 * @jack: jack to report detection events on
1587 * @det: value to report for presence detection
1588 * @shrt: value to report for short detection
1589 *
1590 * Enable microphone detection via IRQ on the WM8903. If GPIOs are
1591 * being used to bring out signals to the processor then only platform
1592 * data configuration is needed for WM8903 and processor GPIOs should
1593 * be configured using snd_soc_jack_add_gpios() instead.
1594 *
1595 * The current threasholds for detection should be configured using
1596 * micdet_cfg in the platform data. Using this function will force on
1597 * the microphone bias for the device.
1598 */
1599 int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
1600 int det, int shrt)
1601 {
1602 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1603 int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
1604
1605 dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
1606 det, shrt);
1607
1608 /* Store the configuration */
1609 wm8903->mic_jack = jack;
1610 wm8903->mic_det = det;
1611 wm8903->mic_short = shrt;
1612
1613 /* Enable interrupts we've got a report configured for */
1614 if (det)
1615 irq_mask &= ~WM8903_MICDET_EINT;
1616 if (shrt)
1617 irq_mask &= ~WM8903_MICSHRT_EINT;
1618
1619 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1620 WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
1621 irq_mask);
1622
1623 if (det || shrt) {
1624 /* Enable mic detection, this may not have been set through
1625 * platform data (eg, if the defaults are OK). */
1626 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1627 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1628 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1629 WM8903_MICDET_ENA, WM8903_MICDET_ENA);
1630 } else {
1631 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1632 WM8903_MICDET_ENA, 0);
1633 }
1634
1635 return 0;
1636 }
1637 EXPORT_SYMBOL_GPL(wm8903_mic_detect);
1638
1639 static irqreturn_t wm8903_irq(int irq, void *data)
1640 {
1641 struct wm8903_priv *wm8903 = data;
1642 int mic_report, ret;
1643 unsigned int int_val, mask, int_pol;
1644
1645 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
1646 &mask);
1647 if (ret != 0) {
1648 dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
1649 return IRQ_NONE;
1650 }
1651
1652 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
1653 if (ret != 0) {
1654 dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
1655 return IRQ_NONE;
1656 }
1657
1658 int_val &= ~mask;
1659
1660 if (int_val & WM8903_WSEQ_BUSY_EINT) {
1661 dev_warn(wm8903->dev, "Write sequencer done\n");
1662 }
1663
1664 /*
1665 * The rest is microphone jack detection. We need to manually
1666 * invert the polarity of the interrupt after each event - to
1667 * simplify the code keep track of the last state we reported
1668 * and just invert the relevant bits in both the report and
1669 * the polarity register.
1670 */
1671 mic_report = wm8903->mic_last_report;
1672 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1673 &int_pol);
1674 if (ret != 0) {
1675 dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
1676 ret);
1677 return IRQ_HANDLED;
1678 }
1679
1680 #ifndef CONFIG_SND_SOC_WM8903_MODULE
1681 if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
1682 trace_snd_soc_jack_irq(dev_name(wm8903->dev));
1683 #endif
1684
1685 if (int_val & WM8903_MICSHRT_EINT) {
1686 dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
1687
1688 mic_report ^= wm8903->mic_short;
1689 int_pol ^= WM8903_MICSHRT_INV;
1690 }
1691
1692 if (int_val & WM8903_MICDET_EINT) {
1693 dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
1694
1695 mic_report ^= wm8903->mic_det;
1696 int_pol ^= WM8903_MICDET_INV;
1697
1698 msleep(wm8903->mic_delay);
1699 }
1700
1701 regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1702 WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
1703
1704 snd_soc_jack_report(wm8903->mic_jack, mic_report,
1705 wm8903->mic_short | wm8903->mic_det);
1706
1707 wm8903->mic_last_report = mic_report;
1708
1709 return IRQ_HANDLED;
1710 }
1711
1712 #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1713 SNDRV_PCM_RATE_11025 | \
1714 SNDRV_PCM_RATE_16000 | \
1715 SNDRV_PCM_RATE_22050 | \
1716 SNDRV_PCM_RATE_32000 | \
1717 SNDRV_PCM_RATE_44100 | \
1718 SNDRV_PCM_RATE_48000 | \
1719 SNDRV_PCM_RATE_88200 | \
1720 SNDRV_PCM_RATE_96000)
1721
1722 #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1723 SNDRV_PCM_RATE_11025 | \
1724 SNDRV_PCM_RATE_16000 | \
1725 SNDRV_PCM_RATE_22050 | \
1726 SNDRV_PCM_RATE_32000 | \
1727 SNDRV_PCM_RATE_44100 | \
1728 SNDRV_PCM_RATE_48000)
1729
1730 #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1731 SNDRV_PCM_FMTBIT_S20_3LE |\
1732 SNDRV_PCM_FMTBIT_S24_LE)
1733
1734 static const struct snd_soc_dai_ops wm8903_dai_ops = {
1735 .hw_params = wm8903_hw_params,
1736 .digital_mute = wm8903_digital_mute,
1737 .set_fmt = wm8903_set_dai_fmt,
1738 .set_sysclk = wm8903_set_dai_sysclk,
1739 };
1740
1741 static struct snd_soc_dai_driver wm8903_dai = {
1742 .name = "wm8903-hifi",
1743 .playback = {
1744 .stream_name = "Playback",
1745 .channels_min = 2,
1746 .channels_max = 2,
1747 .rates = WM8903_PLAYBACK_RATES,
1748 .formats = WM8903_FORMATS,
1749 },
1750 .capture = {
1751 .stream_name = "Capture",
1752 .channels_min = 2,
1753 .channels_max = 2,
1754 .rates = WM8903_CAPTURE_RATES,
1755 .formats = WM8903_FORMATS,
1756 },
1757 .ops = &wm8903_dai_ops,
1758 .symmetric_rates = 1,
1759 };
1760
1761 static int wm8903_suspend(struct snd_soc_codec *codec)
1762 {
1763 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1764
1765 return 0;
1766 }
1767
1768 static int wm8903_resume(struct snd_soc_codec *codec)
1769 {
1770 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1771
1772 regcache_sync(wm8903->regmap);
1773
1774 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1775
1776 return 0;
1777 }
1778
1779 #ifdef CONFIG_GPIOLIB
1780 static inline struct wm8903_priv *gpio_to_wm8903(struct gpio_chip *chip)
1781 {
1782 return container_of(chip, struct wm8903_priv, gpio_chip);
1783 }
1784
1785 static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
1786 {
1787 if (offset >= WM8903_NUM_GPIO)
1788 return -EINVAL;
1789
1790 return 0;
1791 }
1792
1793 static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
1794 {
1795 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1796 unsigned int mask, val;
1797 int ret;
1798
1799 mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
1800 val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
1801 WM8903_GP1_DIR;
1802
1803 ret = regmap_update_bits(wm8903->regmap,
1804 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1805 if (ret < 0)
1806 return ret;
1807
1808 return 0;
1809 }
1810
1811 static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
1812 {
1813 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1814 unsigned int reg;
1815
1816 regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, &reg);
1817
1818 return (reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT;
1819 }
1820
1821 static int wm8903_gpio_direction_out(struct gpio_chip *chip,
1822 unsigned offset, int value)
1823 {
1824 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1825 unsigned int mask, val;
1826 int ret;
1827
1828 mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
1829 val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
1830 (value << WM8903_GP2_LVL_SHIFT);
1831
1832 ret = regmap_update_bits(wm8903->regmap,
1833 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1834 if (ret < 0)
1835 return ret;
1836
1837 return 0;
1838 }
1839
1840 static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
1841 {
1842 struct wm8903_priv *wm8903 = gpio_to_wm8903(chip);
1843
1844 regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
1845 WM8903_GP1_LVL_MASK,
1846 !!value << WM8903_GP1_LVL_SHIFT);
1847 }
1848
1849 static struct gpio_chip wm8903_template_chip = {
1850 .label = "wm8903",
1851 .owner = THIS_MODULE,
1852 .request = wm8903_gpio_request,
1853 .direction_input = wm8903_gpio_direction_in,
1854 .get = wm8903_gpio_get,
1855 .direction_output = wm8903_gpio_direction_out,
1856 .set = wm8903_gpio_set,
1857 .can_sleep = 1,
1858 };
1859
1860 static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1861 {
1862 struct wm8903_platform_data *pdata = wm8903->pdata;
1863 int ret;
1864
1865 wm8903->gpio_chip = wm8903_template_chip;
1866 wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
1867 wm8903->gpio_chip.dev = wm8903->dev;
1868
1869 if (pdata->gpio_base)
1870 wm8903->gpio_chip.base = pdata->gpio_base;
1871 else
1872 wm8903->gpio_chip.base = -1;
1873
1874 ret = gpiochip_add(&wm8903->gpio_chip);
1875 if (ret != 0)
1876 dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
1877 }
1878
1879 static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1880 {
1881 int ret;
1882
1883 ret = gpiochip_remove(&wm8903->gpio_chip);
1884 if (ret != 0)
1885 dev_err(wm8903->dev, "Failed to remove GPIOs: %d\n", ret);
1886 }
1887 #else
1888 static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1889 {
1890 }
1891
1892 static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1893 {
1894 }
1895 #endif
1896
1897 static int wm8903_probe(struct snd_soc_codec *codec)
1898 {
1899 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1900
1901 wm8903->codec = codec;
1902
1903 /* power on device */
1904 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1905
1906 return 0;
1907 }
1908
1909 /* power down chip */
1910 static int wm8903_remove(struct snd_soc_codec *codec)
1911 {
1912 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1913
1914 return 0;
1915 }
1916
1917 static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
1918 .probe = wm8903_probe,
1919 .remove = wm8903_remove,
1920 .suspend = wm8903_suspend,
1921 .resume = wm8903_resume,
1922 .set_bias_level = wm8903_set_bias_level,
1923 .seq_notifier = wm8903_seq_notifier,
1924 .controls = wm8903_snd_controls,
1925 .num_controls = ARRAY_SIZE(wm8903_snd_controls),
1926 .dapm_widgets = wm8903_dapm_widgets,
1927 .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets),
1928 .dapm_routes = wm8903_intercon,
1929 .num_dapm_routes = ARRAY_SIZE(wm8903_intercon),
1930 };
1931
1932 static const struct regmap_config wm8903_regmap = {
1933 .reg_bits = 8,
1934 .val_bits = 16,
1935
1936 .max_register = WM8903_MAX_REGISTER,
1937 .volatile_reg = wm8903_volatile_register,
1938 .readable_reg = wm8903_readable_register,
1939
1940 .cache_type = REGCACHE_RBTREE,
1941 .reg_defaults = wm8903_reg_defaults,
1942 .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
1943 };
1944
1945 static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
1946 struct wm8903_platform_data *pdata)
1947 {
1948 struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
1949 if (!irq_data) {
1950 dev_err(&i2c->dev, "Invalid IRQ: %d\n",
1951 i2c->irq);
1952 return -EINVAL;
1953 }
1954
1955 switch (irqd_get_trigger_type(irq_data)) {
1956 case IRQ_TYPE_NONE:
1957 default:
1958 /*
1959 * We assume the controller imposes no restrictions,
1960 * so we are able to select active-high
1961 */
1962 /* Fall-through */
1963 case IRQ_TYPE_LEVEL_HIGH:
1964 pdata->irq_active_low = false;
1965 break;
1966 case IRQ_TYPE_LEVEL_LOW:
1967 pdata->irq_active_low = true;
1968 break;
1969 }
1970
1971 return 0;
1972 }
1973
1974 static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
1975 struct wm8903_platform_data *pdata)
1976 {
1977 const struct device_node *np = i2c->dev.of_node;
1978 u32 val32;
1979 int i;
1980
1981 if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
1982 pdata->micdet_cfg = val32;
1983
1984 if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
1985 pdata->micdet_delay = val32;
1986
1987 if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
1988 ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
1989 /*
1990 * In device tree: 0 means "write 0",
1991 * 0xffffffff means "don't touch".
1992 *
1993 * In platform data: 0 means "don't touch",
1994 * 0x8000 means "write 0".
1995 *
1996 * Note: WM8903_GPIO_CONFIG_ZERO == 0x8000.
1997 *
1998 * Convert from DT to pdata representation here,
1999 * so no other code needs to change.
2000 */
2001 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
2002 if (pdata->gpio_cfg[i] == 0) {
2003 pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
2004 } else if (pdata->gpio_cfg[i] == 0xffffffff) {
2005 pdata->gpio_cfg[i] = 0;
2006 } else if (pdata->gpio_cfg[i] > 0x7fff) {
2007 dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
2008 i, pdata->gpio_cfg[i]);
2009 return -EINVAL;
2010 }
2011 }
2012 }
2013
2014 return 0;
2015 }
2016
2017 static int wm8903_i2c_probe(struct i2c_client *i2c,
2018 const struct i2c_device_id *id)
2019 {
2020 struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
2021 struct wm8903_priv *wm8903;
2022 int trigger;
2023 bool mic_gpio = false;
2024 unsigned int val, irq_pol;
2025 int ret, i;
2026
2027 wm8903 = devm_kzalloc(&i2c->dev, sizeof(struct wm8903_priv),
2028 GFP_KERNEL);
2029 if (wm8903 == NULL)
2030 return -ENOMEM;
2031 wm8903->dev = &i2c->dev;
2032
2033 wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);
2034 if (IS_ERR(wm8903->regmap)) {
2035 ret = PTR_ERR(wm8903->regmap);
2036 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
2037 ret);
2038 return ret;
2039 }
2040
2041 i2c_set_clientdata(i2c, wm8903);
2042
2043 /* If no platform data was supplied, create storage for defaults */
2044 if (pdata) {
2045 wm8903->pdata = pdata;
2046 } else {
2047 wm8903->pdata = devm_kzalloc(&i2c->dev,
2048 sizeof(struct wm8903_platform_data),
2049 GFP_KERNEL);
2050 if (wm8903->pdata == NULL) {
2051 dev_err(&i2c->dev, "Failed to allocate pdata\n");
2052 return -ENOMEM;
2053 }
2054
2055 if (i2c->irq) {
2056 ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
2057 if (ret != 0)
2058 return ret;
2059 }
2060
2061 if (i2c->dev.of_node) {
2062 ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
2063 if (ret != 0)
2064 return ret;
2065 }
2066 }
2067
2068 pdata = wm8903->pdata;
2069
2070 ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
2071 if (ret != 0) {
2072 dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
2073 goto err;
2074 }
2075 if (val != 0x8903) {
2076 dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
2077 ret = -ENODEV;
2078 goto err;
2079 }
2080
2081 ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
2082 if (ret != 0) {
2083 dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
2084 goto err;
2085 }
2086 dev_info(&i2c->dev, "WM8903 revision %c\n",
2087 (val & WM8903_CHIP_REV_MASK) + 'A');
2088
2089 /* Reset the device */
2090 regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
2091
2092 wm8903_init_gpio(wm8903);
2093
2094 /* Set up GPIO pin state, detect if any are MIC detect outputs */
2095 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
2096 if ((!pdata->gpio_cfg[i]) ||
2097 (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
2098 continue;
2099
2100 regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i,
2101 pdata->gpio_cfg[i] & 0x7fff);
2102
2103 val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
2104 >> WM8903_GP1_FN_SHIFT;
2105
2106 switch (val) {
2107 case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
2108 case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
2109 mic_gpio = true;
2110 break;
2111 default:
2112 break;
2113 }
2114 }
2115
2116 /* Set up microphone detection */
2117 regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0,
2118 pdata->micdet_cfg);
2119
2120 /* Microphone detection needs the WSEQ clock */
2121 if (pdata->micdet_cfg)
2122 regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0,
2123 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
2124
2125 /* If microphone detection is enabled by pdata but
2126 * detected via IRQ then interrupts can be lost before
2127 * the machine driver has set up microphone detection
2128 * IRQs as the IRQs are clear on read. The detection
2129 * will be enabled when the machine driver configures.
2130 */
2131 WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
2132
2133 wm8903->mic_delay = pdata->micdet_delay;
2134
2135 if (i2c->irq) {
2136 if (pdata->irq_active_low) {
2137 trigger = IRQF_TRIGGER_LOW;
2138 irq_pol = WM8903_IRQ_POL;
2139 } else {
2140 trigger = IRQF_TRIGGER_HIGH;
2141 irq_pol = 0;
2142 }
2143
2144 regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL,
2145 WM8903_IRQ_POL, irq_pol);
2146
2147 ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
2148 trigger | IRQF_ONESHOT,
2149 "wm8903", wm8903);
2150 if (ret != 0) {
2151 dev_err(wm8903->dev, "Failed to request IRQ: %d\n",
2152 ret);
2153 return ret;
2154 }
2155
2156 /* Enable write sequencer interrupts */
2157 regmap_update_bits(wm8903->regmap,
2158 WM8903_INTERRUPT_STATUS_1_MASK,
2159 WM8903_IM_WSEQ_BUSY_EINT, 0);
2160 }
2161
2162 /* Latch volume update bits */
2163 regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT,
2164 WM8903_ADCVU, WM8903_ADCVU);
2165 regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT,
2166 WM8903_ADCVU, WM8903_ADCVU);
2167
2168 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT,
2169 WM8903_DACVU, WM8903_DACVU);
2170 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT,
2171 WM8903_DACVU, WM8903_DACVU);
2172
2173 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT,
2174 WM8903_HPOUTVU, WM8903_HPOUTVU);
2175 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT,
2176 WM8903_HPOUTVU, WM8903_HPOUTVU);
2177
2178 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT,
2179 WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2180 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT,
2181 WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2182
2183 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT,
2184 WM8903_SPKVU, WM8903_SPKVU);
2185 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT,
2186 WM8903_SPKVU, WM8903_SPKVU);
2187
2188 /* Enable DAC soft mute by default */
2189 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1,
2190 WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
2191 WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
2192
2193 ret = snd_soc_register_codec(&i2c->dev,
2194 &soc_codec_dev_wm8903, &wm8903_dai, 1);
2195 if (ret != 0)
2196 goto err;
2197
2198 return 0;
2199 err:
2200 return ret;
2201 }
2202
2203 static int wm8903_i2c_remove(struct i2c_client *client)
2204 {
2205 struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
2206
2207 if (client->irq)
2208 free_irq(client->irq, wm8903);
2209 wm8903_free_gpio(wm8903);
2210 snd_soc_unregister_codec(&client->dev);
2211
2212 return 0;
2213 }
2214
2215 static const struct of_device_id wm8903_of_match[] = {
2216 { .compatible = "wlf,wm8903", },
2217 {},
2218 };
2219 MODULE_DEVICE_TABLE(of, wm8903_of_match);
2220
2221 static const struct i2c_device_id wm8903_i2c_id[] = {
2222 { "wm8903", 0 },
2223 { }
2224 };
2225 MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
2226
2227 static struct i2c_driver wm8903_i2c_driver = {
2228 .driver = {
2229 .name = "wm8903",
2230 .owner = THIS_MODULE,
2231 .of_match_table = wm8903_of_match,
2232 },
2233 .probe = wm8903_i2c_probe,
2234 .remove = wm8903_i2c_remove,
2235 .id_table = wm8903_i2c_id,
2236 };
2237
2238 module_i2c_driver(wm8903_i2c_driver);
2239
2240 MODULE_DESCRIPTION("ASoC WM8903 driver");
2241 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
2242 MODULE_LICENSE("GPL");
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