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Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
[linux/fpc-iii.git] / sound / soc / codecs / wm8903.c
blobbf08282d5ee56384023d7055ff3b355d817d8e05
1 /*
2 * wm8903.c -- WM8903 ALSA SoC Audio driver
3 *
4 * Copyright 2008 Wolfson Microelectronics
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * TODO:
13 * - TDM mode configuration.
14 * - Digital microphone support.
15 */
16
17 #include <linux/module.h>
18 #include <linux/moduleparam.h>
19 #include <linux/init.h>
20 #include <linux/completion.h>
21 #include <linux/delay.h>
22 #include <linux/pm.h>
23 #include <linux/i2c.h>
24 #include <linux/platform_device.h>
25 #include <linux/slab.h>
26 #include <sound/core.h>
27 #include <sound/jack.h>
28 #include <sound/pcm.h>
29 #include <sound/pcm_params.h>
30 #include <sound/tlv.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dapm.h>
33 #include <sound/initval.h>
34 #include <sound/wm8903.h>
35
36 #include "wm8903.h"
37
38 /* Register defaults at reset */
39 static u16 wm8903_reg_defaults[] = {
40 0x8903, /* R0 - SW Reset and ID */
41 0x0000, /* R1 - Revision Number */
42 0x0000, /* R2 */
43 0x0000, /* R3 */
44 0x0018, /* R4 - Bias Control 0 */
45 0x0000, /* R5 - VMID Control 0 */
46 0x0000, /* R6 - Mic Bias Control 0 */
47 0x0000, /* R7 */
48 0x0001, /* R8 - Analogue DAC 0 */
49 0x0000, /* R9 */
50 0x0001, /* R10 - Analogue ADC 0 */
51 0x0000, /* R11 */
52 0x0000, /* R12 - Power Management 0 */
53 0x0000, /* R13 - Power Management 1 */
54 0x0000, /* R14 - Power Management 2 */
55 0x0000, /* R15 - Power Management 3 */
56 0x0000, /* R16 - Power Management 4 */
57 0x0000, /* R17 - Power Management 5 */
58 0x0000, /* R18 - Power Management 6 */
59 0x0000, /* R19 */
60 0x0400, /* R20 - Clock Rates 0 */
61 0x0D07, /* R21 - Clock Rates 1 */
62 0x0000, /* R22 - Clock Rates 2 */
63 0x0000, /* R23 */
64 0x0050, /* R24 - Audio Interface 0 */
65 0x0242, /* R25 - Audio Interface 1 */
66 0x0008, /* R26 - Audio Interface 2 */
67 0x0022, /* R27 - Audio Interface 3 */
68 0x0000, /* R28 */
69 0x0000, /* R29 */
70 0x00C0, /* R30 - DAC Digital Volume Left */
71 0x00C0, /* R31 - DAC Digital Volume Right */
72 0x0000, /* R32 - DAC Digital 0 */
73 0x0000, /* R33 - DAC Digital 1 */
74 0x0000, /* R34 */
75 0x0000, /* R35 */
76 0x00C0, /* R36 - ADC Digital Volume Left */
77 0x00C0, /* R37 - ADC Digital Volume Right */
78 0x0000, /* R38 - ADC Digital 0 */
79 0x0073, /* R39 - Digital Microphone 0 */
80 0x09BF, /* R40 - DRC 0 */
81 0x3241, /* R41 - DRC 1 */
82 0x0020, /* R42 - DRC 2 */
83 0x0000, /* R43 - DRC 3 */
84 0x0085, /* R44 - Analogue Left Input 0 */
85 0x0085, /* R45 - Analogue Right Input 0 */
86 0x0044, /* R46 - Analogue Left Input 1 */
87 0x0044, /* R47 - Analogue Right Input 1 */
88 0x0000, /* R48 */
89 0x0000, /* R49 */
90 0x0008, /* R50 - Analogue Left Mix 0 */
91 0x0004, /* R51 - Analogue Right Mix 0 */
92 0x0000, /* R52 - Analogue Spk Mix Left 0 */
93 0x0000, /* R53 - Analogue Spk Mix Left 1 */
94 0x0000, /* R54 - Analogue Spk Mix Right 0 */
95 0x0000, /* R55 - Analogue Spk Mix Right 1 */
96 0x0000, /* R56 */
97 0x002D, /* R57 - Analogue OUT1 Left */
98 0x002D, /* R58 - Analogue OUT1 Right */
99 0x0039, /* R59 - Analogue OUT2 Left */
100 0x0039, /* R60 - Analogue OUT2 Right */
101 0x0100, /* R61 */
102 0x0139, /* R62 - Analogue OUT3 Left */
103 0x0139, /* R63 - Analogue OUT3 Right */
104 0x0000, /* R64 */
105 0x0000, /* R65 - Analogue SPK Output Control 0 */
106 0x0000, /* R66 */
107 0x0010, /* R67 - DC Servo 0 */
108 0x0100, /* R68 */
109 0x00A4, /* R69 - DC Servo 2 */
110 0x0807, /* R70 */
111 0x0000, /* R71 */
112 0x0000, /* R72 */
113 0x0000, /* R73 */
114 0x0000, /* R74 */
115 0x0000, /* R75 */
116 0x0000, /* R76 */
117 0x0000, /* R77 */
118 0x0000, /* R78 */
119 0x000E, /* R79 */
120 0x0000, /* R80 */
121 0x0000, /* R81 */
122 0x0000, /* R82 */
123 0x0000, /* R83 */
124 0x0000, /* R84 */
125 0x0000, /* R85 */
126 0x0000, /* R86 */
127 0x0006, /* R87 */
128 0x0000, /* R88 */
129 0x0000, /* R89 */
130 0x0000, /* R90 - Analogue HP 0 */
131 0x0060, /* R91 */
132 0x0000, /* R92 */
133 0x0000, /* R93 */
134 0x0000, /* R94 - Analogue Lineout 0 */
135 0x0060, /* R95 */
136 0x0000, /* R96 */
137 0x0000, /* R97 */
138 0x0000, /* R98 - Charge Pump 0 */
139 0x1F25, /* R99 */
140 0x2B19, /* R100 */
141 0x01C0, /* R101 */
142 0x01EF, /* R102 */
143 0x2B00, /* R103 */
144 0x0000, /* R104 - Class W 0 */
145 0x01C0, /* R105 */
146 0x1C10, /* R106 */
147 0x0000, /* R107 */
148 0x0000, /* R108 - Write Sequencer 0 */
149 0x0000, /* R109 - Write Sequencer 1 */
150 0x0000, /* R110 - Write Sequencer 2 */
151 0x0000, /* R111 - Write Sequencer 3 */
152 0x0000, /* R112 - Write Sequencer 4 */
153 0x0000, /* R113 */
154 0x0000, /* R114 - Control Interface */
155 0x0000, /* R115 */
156 0x00A8, /* R116 - GPIO Control 1 */
157 0x00A8, /* R117 - GPIO Control 2 */
158 0x00A8, /* R118 - GPIO Control 3 */
159 0x0220, /* R119 - GPIO Control 4 */
160 0x01A0, /* R120 - GPIO Control 5 */
161 0x0000, /* R121 - Interrupt Status 1 */
162 0xFFFF, /* R122 - Interrupt Status 1 Mask */
163 0x0000, /* R123 - Interrupt Polarity 1 */
164 0x0000, /* R124 */
165 0x0003, /* R125 */
166 0x0000, /* R126 - Interrupt Control */
167 0x0000, /* R127 */
168 0x0005, /* R128 */
169 0x0000, /* R129 - Control Interface Test 1 */
170 0x0000, /* R130 */
171 0x0000, /* R131 */
172 0x0000, /* R132 */
173 0x0000, /* R133 */
174 0x0000, /* R134 */
175 0x03FF, /* R135 */
176 0x0007, /* R136 */
177 0x0040, /* R137 */
178 0x0000, /* R138 */
179 0x0000, /* R139 */
180 0x0000, /* R140 */
181 0x0000, /* R141 */
182 0x0000, /* R142 */
183 0x0000, /* R143 */
184 0x0000, /* R144 */
185 0x0000, /* R145 */
186 0x0000, /* R146 */
187 0x0000, /* R147 */
188 0x4000, /* R148 */
189 0x6810, /* R149 - Charge Pump Test 1 */
190 0x0004, /* R150 */
191 0x0000, /* R151 */
192 0x0000, /* R152 */
193 0x0000, /* R153 */
194 0x0000, /* R154 */
195 0x0000, /* R155 */
196 0x0000, /* R156 */
197 0x0000, /* R157 */
198 0x0000, /* R158 */
199 0x0000, /* R159 */
200 0x0000, /* R160 */
201 0x0000, /* R161 */
202 0x0000, /* R162 */
203 0x0000, /* R163 */
204 0x0028, /* R164 - Clock Rate Test 4 */
205 0x0004, /* R165 */
206 0x0000, /* R166 */
207 0x0060, /* R167 */
208 0x0000, /* R168 */
209 0x0000, /* R169 */
210 0x0000, /* R170 */
211 0x0000, /* R171 */
212 0x0000, /* R172 - Analogue Output Bias 0 */
213 };
214
215 struct wm8903_priv {
216 struct snd_soc_codec codec;
217 u16 reg_cache[ARRAY_SIZE(wm8903_reg_defaults)];
218
219 int sysclk;
220
221 /* Reference counts */
222 int class_w_users;
223 int playback_active;
224 int capture_active;
225
226 struct completion wseq;
227
228 struct snd_soc_jack *mic_jack;
229 int mic_det;
230 int mic_short;
231 int mic_last_report;
232 int mic_delay;
233
234 struct snd_pcm_substream *master_substream;
235 struct snd_pcm_substream *slave_substream;
236 };
237
238 static int wm8903_volatile_register(unsigned int reg)
239 {
240 switch (reg) {
241 case WM8903_SW_RESET_AND_ID:
242 case WM8903_REVISION_NUMBER:
243 case WM8903_INTERRUPT_STATUS_1:
244 case WM8903_WRITE_SEQUENCER_4:
245 return 1;
246
247 default:
248 return 0;
249 }
250 }
251
252 static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start)
253 {
254 u16 reg[5];
255 struct i2c_client *i2c = codec->control_data;
256 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
257
258 BUG_ON(start > 48);
259
260 /* Enable the sequencer if it's not already on */
261 reg[0] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_0);
262 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0,
263 reg[0] | WM8903_WSEQ_ENA);
264
265 dev_dbg(&i2c->dev, "Starting sequence at %d\n", start);
266
267 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_3,
268 start | WM8903_WSEQ_START);
269
270 /* Wait for it to complete. If we have the interrupt wired up then
271 * that will break us out of the poll early.
272 */
273 do {
274 wait_for_completion_timeout(&wm8903->wseq,
275 msecs_to_jiffies(10));
276
277 reg[4] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_4);
278 } while (reg[4] & WM8903_WSEQ_BUSY);
279
280 dev_dbg(&i2c->dev, "Sequence complete\n");
281
282 /* Disable the sequencer again if we enabled it */
283 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
284
285 return 0;
286 }
287
288 static void wm8903_sync_reg_cache(struct snd_soc_codec *codec, u16 *cache)
289 {
290 int i;
291
292 /* There really ought to be something better we can do here :/ */
293 for (i = 0; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
294 cache[i] = codec->hw_read(codec, i);
295 }
296
297 static void wm8903_reset(struct snd_soc_codec *codec)
298 {
299 snd_soc_write(codec, WM8903_SW_RESET_AND_ID, 0);
300 memcpy(codec->reg_cache, wm8903_reg_defaults,
301 sizeof(wm8903_reg_defaults));
302 }
303
304 #define WM8903_OUTPUT_SHORT 0x8
305 #define WM8903_OUTPUT_OUT 0x4
306 #define WM8903_OUTPUT_INT 0x2
307 #define WM8903_OUTPUT_IN 0x1
308
309 static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
310 struct snd_kcontrol *kcontrol, int event)
311 {
312 WARN_ON(event != SND_SOC_DAPM_POST_PMU);
313 mdelay(4);
314
315 return 0;
316 }
317
318 /*
319 * Event for headphone and line out amplifier power changes. Special
320 * power up/down sequences are required in order to maximise pop/click
321 * performance.
322 */
323 static int wm8903_output_event(struct snd_soc_dapm_widget *w,
324 struct snd_kcontrol *kcontrol, int event)
325 {
326 struct snd_soc_codec *codec = w->codec;
327 u16 val;
328 u16 reg;
329 u16 dcs_reg;
330 u16 dcs_bit;
331 int shift;
332
333 switch (w->reg) {
334 case WM8903_POWER_MANAGEMENT_2:
335 reg = WM8903_ANALOGUE_HP_0;
336 dcs_bit = 0 + w->shift;
337 break;
338 case WM8903_POWER_MANAGEMENT_3:
339 reg = WM8903_ANALOGUE_LINEOUT_0;
340 dcs_bit = 2 + w->shift;
341 break;
342 default:
343 BUG();
344 return -EINVAL; /* Spurious warning from some compilers */
345 }
346
347 switch (w->shift) {
348 case 0:
349 shift = 0;
350 break;
351 case 1:
352 shift = 4;
353 break;
354 default:
355 BUG();
356 return -EINVAL; /* Spurious warning from some compilers */
357 }
358
359 if (event & SND_SOC_DAPM_PRE_PMU) {
360 val = snd_soc_read(codec, reg);
361
362 /* Short the output */
363 val &= ~(WM8903_OUTPUT_SHORT << shift);
364 snd_soc_write(codec, reg, val);
365 }
366
367 if (event & SND_SOC_DAPM_POST_PMU) {
368 val = snd_soc_read(codec, reg);
369
370 val |= (WM8903_OUTPUT_IN << shift);
371 snd_soc_write(codec, reg, val);
372
373 val |= (WM8903_OUTPUT_INT << shift);
374 snd_soc_write(codec, reg, val);
375
376 /* Turn on the output ENA_OUTP */
377 val |= (WM8903_OUTPUT_OUT << shift);
378 snd_soc_write(codec, reg, val);
379
380 /* Enable the DC servo */
381 dcs_reg = snd_soc_read(codec, WM8903_DC_SERVO_0);
382 dcs_reg |= dcs_bit;
383 snd_soc_write(codec, WM8903_DC_SERVO_0, dcs_reg);
384
385 /* Remove the short */
386 val |= (WM8903_OUTPUT_SHORT << shift);
387 snd_soc_write(codec, reg, val);
388 }
389
390 if (event & SND_SOC_DAPM_PRE_PMD) {
391 val = snd_soc_read(codec, reg);
392
393 /* Short the output */
394 val &= ~(WM8903_OUTPUT_SHORT << shift);
395 snd_soc_write(codec, reg, val);
396
397 /* Disable the DC servo */
398 dcs_reg = snd_soc_read(codec, WM8903_DC_SERVO_0);
399 dcs_reg &= ~dcs_bit;
400 snd_soc_write(codec, WM8903_DC_SERVO_0, dcs_reg);
401
402 /* Then disable the intermediate and output stages */
403 val &= ~((WM8903_OUTPUT_OUT | WM8903_OUTPUT_INT |
404 WM8903_OUTPUT_IN) << shift);
405 snd_soc_write(codec, reg, val);
406 }
407
408 return 0;
409 }
410
411 /*
412 * When used with DAC outputs only the WM8903 charge pump supports
413 * operation in class W mode, providing very low power consumption
414 * when used with digital sources. Enable and disable this mode
415 * automatically depending on the mixer configuration.
416 *
417 * All the relevant controls are simple switches.
418 */
419 static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
420 struct snd_ctl_elem_value *ucontrol)
421 {
422 struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
423 struct snd_soc_codec *codec = widget->codec;
424 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
425 struct i2c_client *i2c = codec->control_data;
426 u16 reg;
427 int ret;
428
429 reg = snd_soc_read(codec, WM8903_CLASS_W_0);
430
431 /* Turn it off if we're about to enable bypass */
432 if (ucontrol->value.integer.value[0]) {
433 if (wm8903->class_w_users == 0) {
434 dev_dbg(&i2c->dev, "Disabling Class W\n");
435 snd_soc_write(codec, WM8903_CLASS_W_0, reg &
436 ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
437 }
438 wm8903->class_w_users++;
439 }
440
441 /* Implement the change */
442 ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
443
444 /* If we've just disabled the last bypass path turn Class W on */
445 if (!ucontrol->value.integer.value[0]) {
446 if (wm8903->class_w_users == 1) {
447 dev_dbg(&i2c->dev, "Enabling Class W\n");
448 snd_soc_write(codec, WM8903_CLASS_W_0, reg |
449 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
450 }
451 wm8903->class_w_users--;
452 }
453
454 dev_dbg(&i2c->dev, "Bypass use count now %d\n",
455 wm8903->class_w_users);
456
457 return ret;
458 }
459
460 #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
461 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
462 .info = snd_soc_info_volsw, \
463 .get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \
464 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
465
466
467 /* ALSA can only do steps of .01dB */
468 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
469
470 static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
471 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
472
473 static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
474 static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
475 static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
476 static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
477 static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
478
479 static const char *drc_slope_text[] = {
480 "1", "1/2", "1/4", "1/8", "1/16", "0"
481 };
482
483 static const struct soc_enum drc_slope_r0 =
484 SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text);
485
486 static const struct soc_enum drc_slope_r1 =
487 SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text);
488
489 static const char *drc_attack_text[] = {
490 "instantaneous",
491 "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
492 "46.4ms", "92.8ms", "185.6ms"
493 };
494
495 static const struct soc_enum drc_attack =
496 SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text);
497
498 static const char *drc_decay_text[] = {
499 "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
500 "23.87s", "47.56s"
501 };
502
503 static const struct soc_enum drc_decay =
504 SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text);
505
506 static const char *drc_ff_delay_text[] = {
507 "5 samples", "9 samples"
508 };
509
510 static const struct soc_enum drc_ff_delay =
511 SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text);
512
513 static const char *drc_qr_decay_text[] = {
514 "0.725ms", "1.45ms", "5.8ms"
515 };
516
517 static const struct soc_enum drc_qr_decay =
518 SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text);
519
520 static const char *drc_smoothing_text[] = {
521 "Low", "Medium", "High"
522 };
523
524 static const struct soc_enum drc_smoothing =
525 SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text);
526
527 static const char *soft_mute_text[] = {
528 "Fast (fs/2)", "Slow (fs/32)"
529 };
530
531 static const struct soc_enum soft_mute =
532 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text);
533
534 static const char *mute_mode_text[] = {
535 "Hard", "Soft"
536 };
537
538 static const struct soc_enum mute_mode =
539 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text);
540
541 static const char *dac_deemphasis_text[] = {
542 "Disabled", "32kHz", "44.1kHz", "48kHz"
543 };
544
545 static const struct soc_enum dac_deemphasis =
546 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 1, 4, dac_deemphasis_text);
547
548 static const char *companding_text[] = {
549 "ulaw", "alaw"
550 };
551
552 static const struct soc_enum dac_companding =
553 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text);
554
555 static const struct soc_enum adc_companding =
556 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text);
557
558 static const char *input_mode_text[] = {
559 "Single-Ended", "Differential Line", "Differential Mic"
560 };
561
562 static const struct soc_enum linput_mode_enum =
563 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
564
565 static const struct soc_enum rinput_mode_enum =
566 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
567
568 static const char *linput_mux_text[] = {
569 "IN1L", "IN2L", "IN3L"
570 };
571
572 static const struct soc_enum linput_enum =
573 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text);
574
575 static const struct soc_enum linput_inv_enum =
576 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text);
577
578 static const char *rinput_mux_text[] = {
579 "IN1R", "IN2R", "IN3R"
580 };
581
582 static const struct soc_enum rinput_enum =
583 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text);
584
585 static const struct soc_enum rinput_inv_enum =
586 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
587
588
589 static const char *sidetone_text[] = {
590 "None", "Left", "Right"
591 };
592
593 static const struct soc_enum lsidetone_enum =
594 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text);
595
596 static const struct soc_enum rsidetone_enum =
597 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text);
598
599 static const struct snd_kcontrol_new wm8903_snd_controls[] = {
600
601 /* Input PGAs - No TLV since the scale depends on PGA mode */
602 SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
603 7, 1, 1),
604 SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
605 0, 31, 0),
606 SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
607 6, 1, 0),
608
609 SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
610 7, 1, 1),
611 SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
612 0, 31, 0),
613 SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
614 6, 1, 0),
615
616 /* ADCs */
617 SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
618 SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
619 SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
620 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
621 drc_tlv_thresh),
622 SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
623 SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
624 SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
625 SOC_ENUM("DRC Attack Rate", drc_attack),
626 SOC_ENUM("DRC Decay Rate", drc_decay),
627 SOC_ENUM("DRC FF Delay", drc_ff_delay),
628 SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
629 SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
630 SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
631 SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
632 SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
633 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
634 SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
635 SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
636
637 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
638 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
639 SOC_ENUM("ADC Companding Mode", adc_companding),
640 SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
641
642 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
643 12, 0, digital_sidetone_tlv),
644
645 /* DAC */
646 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
647 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
648 SOC_ENUM("DAC Soft Mute Rate", soft_mute),
649 SOC_ENUM("DAC Mute Mode", mute_mode),
650 SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
651 SOC_ENUM("DAC De-emphasis", dac_deemphasis),
652 SOC_ENUM("DAC Companding Mode", dac_companding),
653 SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
654
655 /* Headphones */
656 SOC_DOUBLE_R("Headphone Switch",
657 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
658 8, 1, 1),
659 SOC_DOUBLE_R("Headphone ZC Switch",
660 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
661 6, 1, 0),
662 SOC_DOUBLE_R_TLV("Headphone Volume",
663 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
664 0, 63, 0, out_tlv),
665
666 /* Line out */
667 SOC_DOUBLE_R("Line Out Switch",
668 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
669 8, 1, 1),
670 SOC_DOUBLE_R("Line Out ZC Switch",
671 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
672 6, 1, 0),
673 SOC_DOUBLE_R_TLV("Line Out Volume",
674 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
675 0, 63, 0, out_tlv),
676
677 /* Speaker */
678 SOC_DOUBLE_R("Speaker Switch",
679 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
680 SOC_DOUBLE_R("Speaker ZC Switch",
681 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
682 SOC_DOUBLE_R_TLV("Speaker Volume",
683 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
684 0, 63, 0, out_tlv),
685 };
686
687 static const struct snd_kcontrol_new linput_mode_mux =
688 SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
689
690 static const struct snd_kcontrol_new rinput_mode_mux =
691 SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
692
693 static const struct snd_kcontrol_new linput_mux =
694 SOC_DAPM_ENUM("Left Input Mux", linput_enum);
695
696 static const struct snd_kcontrol_new linput_inv_mux =
697 SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
698
699 static const struct snd_kcontrol_new rinput_mux =
700 SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
701
702 static const struct snd_kcontrol_new rinput_inv_mux =
703 SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
704
705 static const struct snd_kcontrol_new lsidetone_mux =
706 SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
707
708 static const struct snd_kcontrol_new rsidetone_mux =
709 SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
710
711 static const struct snd_kcontrol_new left_output_mixer[] = {
712 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
713 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
714 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
715 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
716 };
717
718 static const struct snd_kcontrol_new right_output_mixer[] = {
719 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
720 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
721 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
722 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
723 };
724
725 static const struct snd_kcontrol_new left_speaker_mixer[] = {
726 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
727 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
728 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
729 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
730 0, 1, 0),
731 };
732
733 static const struct snd_kcontrol_new right_speaker_mixer[] = {
734 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
735 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
736 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
737 1, 1, 0),
738 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
739 0, 1, 0),
740 };
741
742 static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
743 SND_SOC_DAPM_INPUT("IN1L"),
744 SND_SOC_DAPM_INPUT("IN1R"),
745 SND_SOC_DAPM_INPUT("IN2L"),
746 SND_SOC_DAPM_INPUT("IN2R"),
747 SND_SOC_DAPM_INPUT("IN3L"),
748 SND_SOC_DAPM_INPUT("IN3R"),
749
750 SND_SOC_DAPM_OUTPUT("HPOUTL"),
751 SND_SOC_DAPM_OUTPUT("HPOUTR"),
752 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
753 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
754 SND_SOC_DAPM_OUTPUT("LOP"),
755 SND_SOC_DAPM_OUTPUT("LON"),
756 SND_SOC_DAPM_OUTPUT("ROP"),
757 SND_SOC_DAPM_OUTPUT("RON"),
758
759 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8903_MIC_BIAS_CONTROL_0, 0, 0),
760
761 SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
762 SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
763 &linput_inv_mux),
764 SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
765
766 SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
767 SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
768 &rinput_inv_mux),
769 SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
770
771 SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
772 SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
773
774 SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6, 1, 0),
775 SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6, 0, 0),
776
777 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
778 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
779
780 SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6, 3, 0),
781 SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6, 2, 0),
782
783 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
784 left_output_mixer, ARRAY_SIZE(left_output_mixer)),
785 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
786 right_output_mixer, ARRAY_SIZE(right_output_mixer)),
787
788 SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
789 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
790 SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
791 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
792
793 SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
794 1, 0, NULL, 0, wm8903_output_event,
795 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
796 SND_SOC_DAPM_PRE_PMD),
797 SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
798 0, 0, NULL, 0, wm8903_output_event,
799 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
800 SND_SOC_DAPM_PRE_PMD),
801
802 SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3, 1, 0,
803 NULL, 0, wm8903_output_event,
804 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
805 SND_SOC_DAPM_PRE_PMD),
806 SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3, 0, 0,
807 NULL, 0, wm8903_output_event,
808 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
809 SND_SOC_DAPM_PRE_PMD),
810
811 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
812 NULL, 0),
813 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
814 NULL, 0),
815
816 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
817 wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
818 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
819 };
820
821 static const struct snd_soc_dapm_route intercon[] = {
822
823 { "Left Input Mux", "IN1L", "IN1L" },
824 { "Left Input Mux", "IN2L", "IN2L" },
825 { "Left Input Mux", "IN3L", "IN3L" },
826
827 { "Left Input Inverting Mux", "IN1L", "IN1L" },
828 { "Left Input Inverting Mux", "IN2L", "IN2L" },
829 { "Left Input Inverting Mux", "IN3L", "IN3L" },
830
831 { "Right Input Mux", "IN1R", "IN1R" },
832 { "Right Input Mux", "IN2R", "IN2R" },
833 { "Right Input Mux", "IN3R", "IN3R" },
834
835 { "Right Input Inverting Mux", "IN1R", "IN1R" },
836 { "Right Input Inverting Mux", "IN2R", "IN2R" },
837 { "Right Input Inverting Mux", "IN3R", "IN3R" },
838
839 { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
840 { "Left Input Mode Mux", "Differential Line",
841 "Left Input Mux" },
842 { "Left Input Mode Mux", "Differential Line",
843 "Left Input Inverting Mux" },
844 { "Left Input Mode Mux", "Differential Mic",
845 "Left Input Mux" },
846 { "Left Input Mode Mux", "Differential Mic",
847 "Left Input Inverting Mux" },
848
849 { "Right Input Mode Mux", "Single-Ended",
850 "Right Input Inverting Mux" },
851 { "Right Input Mode Mux", "Differential Line",
852 "Right Input Mux" },
853 { "Right Input Mode Mux", "Differential Line",
854 "Right Input Inverting Mux" },
855 { "Right Input Mode Mux", "Differential Mic",
856 "Right Input Mux" },
857 { "Right Input Mode Mux", "Differential Mic",
858 "Right Input Inverting Mux" },
859
860 { "Left Input PGA", NULL, "Left Input Mode Mux" },
861 { "Right Input PGA", NULL, "Right Input Mode Mux" },
862
863 { "ADCL", NULL, "Left Input PGA" },
864 { "ADCL", NULL, "CLK_DSP" },
865 { "ADCR", NULL, "Right Input PGA" },
866 { "ADCR", NULL, "CLK_DSP" },
867
868 { "DACL Sidetone", "Left", "ADCL" },
869 { "DACL Sidetone", "Right", "ADCR" },
870 { "DACR Sidetone", "Left", "ADCL" },
871 { "DACR Sidetone", "Right", "ADCR" },
872
873 { "DACL", NULL, "DACL Sidetone" },
874 { "DACL", NULL, "CLK_DSP" },
875 { "DACR", NULL, "DACR Sidetone" },
876 { "DACR", NULL, "CLK_DSP" },
877
878 { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
879 { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
880 { "Left Output Mixer", "DACL Switch", "DACL" },
881 { "Left Output Mixer", "DACR Switch", "DACR" },
882
883 { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
884 { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
885 { "Right Output Mixer", "DACL Switch", "DACL" },
886 { "Right Output Mixer", "DACR Switch", "DACR" },
887
888 { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
889 { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
890 { "Left Speaker Mixer", "DACL Switch", "DACL" },
891 { "Left Speaker Mixer", "DACR Switch", "DACR" },
892
893 { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
894 { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
895 { "Right Speaker Mixer", "DACL Switch", "DACL" },
896 { "Right Speaker Mixer", "DACR Switch", "DACR" },
897
898 { "Left Line Output PGA", NULL, "Left Output Mixer" },
899 { "Right Line Output PGA", NULL, "Right Output Mixer" },
900
901 { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
902 { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
903
904 { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
905 { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
906
907 { "HPOUTL", NULL, "Left Headphone Output PGA" },
908 { "HPOUTR", NULL, "Right Headphone Output PGA" },
909
910 { "LINEOUTL", NULL, "Left Line Output PGA" },
911 { "LINEOUTR", NULL, "Right Line Output PGA" },
912
913 { "LOP", NULL, "Left Speaker PGA" },
914 { "LON", NULL, "Left Speaker PGA" },
915
916 { "ROP", NULL, "Right Speaker PGA" },
917 { "RON", NULL, "Right Speaker PGA" },
918
919 { "Left Headphone Output PGA", NULL, "Charge Pump" },
920 { "Right Headphone Output PGA", NULL, "Charge Pump" },
921 { "Left Line Output PGA", NULL, "Charge Pump" },
922 { "Right Line Output PGA", NULL, "Charge Pump" },
923 };
924
925 static int wm8903_add_widgets(struct snd_soc_codec *codec)
926 {
927 snd_soc_dapm_new_controls(codec, wm8903_dapm_widgets,
928 ARRAY_SIZE(wm8903_dapm_widgets));
929
930 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
931
932 return 0;
933 }
934
935 static int wm8903_set_bias_level(struct snd_soc_codec *codec,
936 enum snd_soc_bias_level level)
937 {
938 struct i2c_client *i2c = codec->control_data;
939 u16 reg, reg2;
940
941 switch (level) {
942 case SND_SOC_BIAS_ON:
943 case SND_SOC_BIAS_PREPARE:
944 reg = snd_soc_read(codec, WM8903_VMID_CONTROL_0);
945 reg &= ~(WM8903_VMID_RES_MASK);
946 reg |= WM8903_VMID_RES_50K;
947 snd_soc_write(codec, WM8903_VMID_CONTROL_0, reg);
948 break;
949
950 case SND_SOC_BIAS_STANDBY:
951 if (codec->bias_level == SND_SOC_BIAS_OFF) {
952 snd_soc_write(codec, WM8903_CLOCK_RATES_2,
953 WM8903_CLK_SYS_ENA);
954
955 /* Change DC servo dither level in startup sequence */
956 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, 0x11);
957 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_1, 0x1257);
958 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_2, 0x2);
959
960 wm8903_run_sequence(codec, 0);
961 wm8903_sync_reg_cache(codec, codec->reg_cache);
962
963 /* Enable low impedence charge pump output */
964 reg = snd_soc_read(codec,
965 WM8903_CONTROL_INTERFACE_TEST_1);
966 snd_soc_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
967 reg | WM8903_TEST_KEY);
968 reg2 = snd_soc_read(codec, WM8903_CHARGE_PUMP_TEST_1);
969 snd_soc_write(codec, WM8903_CHARGE_PUMP_TEST_1,
970 reg2 | WM8903_CP_SW_KELVIN_MODE_MASK);
971 snd_soc_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
972 reg);
973
974 /* By default no bypass paths are enabled so
975 * enable Class W support.
976 */
977 dev_dbg(&i2c->dev, "Enabling Class W\n");
978 snd_soc_write(codec, WM8903_CLASS_W_0, reg |
979 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
980 }
981
982 reg = snd_soc_read(codec, WM8903_VMID_CONTROL_0);
983 reg &= ~(WM8903_VMID_RES_MASK);
984 reg |= WM8903_VMID_RES_250K;
985 snd_soc_write(codec, WM8903_VMID_CONTROL_0, reg);
986 break;
987
988 case SND_SOC_BIAS_OFF:
989 wm8903_run_sequence(codec, 32);
990 reg = snd_soc_read(codec, WM8903_CLOCK_RATES_2);
991 reg &= ~WM8903_CLK_SYS_ENA;
992 snd_soc_write(codec, WM8903_CLOCK_RATES_2, reg);
993 break;
994 }
995
996 codec->bias_level = level;
997
998 return 0;
999 }
1000
1001 static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1002 int clk_id, unsigned int freq, int dir)
1003 {
1004 struct snd_soc_codec *codec = codec_dai->codec;
1005 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1006
1007 wm8903->sysclk = freq;
1008
1009 return 0;
1010 }
1011
1012 static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
1013 unsigned int fmt)
1014 {
1015 struct snd_soc_codec *codec = codec_dai->codec;
1016 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1017
1018 aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
1019 WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
1020
1021 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1022 case SND_SOC_DAIFMT_CBS_CFS:
1023 break;
1024 case SND_SOC_DAIFMT_CBS_CFM:
1025 aif1 |= WM8903_LRCLK_DIR;
1026 break;
1027 case SND_SOC_DAIFMT_CBM_CFM:
1028 aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
1029 break;
1030 case SND_SOC_DAIFMT_CBM_CFS:
1031 aif1 |= WM8903_BCLK_DIR;
1032 break;
1033 default:
1034 return -EINVAL;
1035 }
1036
1037 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1038 case SND_SOC_DAIFMT_DSP_A:
1039 aif1 |= 0x3;
1040 break;
1041 case SND_SOC_DAIFMT_DSP_B:
1042 aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
1043 break;
1044 case SND_SOC_DAIFMT_I2S:
1045 aif1 |= 0x2;
1046 break;
1047 case SND_SOC_DAIFMT_RIGHT_J:
1048 aif1 |= 0x1;
1049 break;
1050 case SND_SOC_DAIFMT_LEFT_J:
1051 break;
1052 default:
1053 return -EINVAL;
1054 }
1055
1056 /* Clock inversion */
1057 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1058 case SND_SOC_DAIFMT_DSP_A:
1059 case SND_SOC_DAIFMT_DSP_B:
1060 /* frame inversion not valid for DSP modes */
1061 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1062 case SND_SOC_DAIFMT_NB_NF:
1063 break;
1064 case SND_SOC_DAIFMT_IB_NF:
1065 aif1 |= WM8903_AIF_BCLK_INV;
1066 break;
1067 default:
1068 return -EINVAL;
1069 }
1070 break;
1071 case SND_SOC_DAIFMT_I2S:
1072 case SND_SOC_DAIFMT_RIGHT_J:
1073 case SND_SOC_DAIFMT_LEFT_J:
1074 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1075 case SND_SOC_DAIFMT_NB_NF:
1076 break;
1077 case SND_SOC_DAIFMT_IB_IF:
1078 aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
1079 break;
1080 case SND_SOC_DAIFMT_IB_NF:
1081 aif1 |= WM8903_AIF_BCLK_INV;
1082 break;
1083 case SND_SOC_DAIFMT_NB_IF:
1084 aif1 |= WM8903_AIF_LRCLK_INV;
1085 break;
1086 default:
1087 return -EINVAL;
1088 }
1089 break;
1090 default:
1091 return -EINVAL;
1092 }
1093
1094 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1095
1096 return 0;
1097 }
1098
1099 static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1100 {
1101 struct snd_soc_codec *codec = codec_dai->codec;
1102 u16 reg;
1103
1104 reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1105
1106 if (mute)
1107 reg |= WM8903_DAC_MUTE;
1108 else
1109 reg &= ~WM8903_DAC_MUTE;
1110
1111 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
1112
1113 return 0;
1114 }
1115
1116 /* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
1117 * for optimal performance so we list the lower rates first and match
1118 * on the last match we find. */
1119 static struct {
1120 int div;
1121 int rate;
1122 int mode;
1123 int mclk_div;
1124 } clk_sys_ratios[] = {
1125 { 64, 0x0, 0x0, 1 },
1126 { 68, 0x0, 0x1, 1 },
1127 { 125, 0x0, 0x2, 1 },
1128 { 128, 0x1, 0x0, 1 },
1129 { 136, 0x1, 0x1, 1 },
1130 { 192, 0x2, 0x0, 1 },
1131 { 204, 0x2, 0x1, 1 },
1132
1133 { 64, 0x0, 0x0, 2 },
1134 { 68, 0x0, 0x1, 2 },
1135 { 125, 0x0, 0x2, 2 },
1136 { 128, 0x1, 0x0, 2 },
1137 { 136, 0x1, 0x1, 2 },
1138 { 192, 0x2, 0x0, 2 },
1139 { 204, 0x2, 0x1, 2 },
1140
1141 { 250, 0x2, 0x2, 1 },
1142 { 256, 0x3, 0x0, 1 },
1143 { 272, 0x3, 0x1, 1 },
1144 { 384, 0x4, 0x0, 1 },
1145 { 408, 0x4, 0x1, 1 },
1146 { 375, 0x4, 0x2, 1 },
1147 { 512, 0x5, 0x0, 1 },
1148 { 544, 0x5, 0x1, 1 },
1149 { 500, 0x5, 0x2, 1 },
1150 { 768, 0x6, 0x0, 1 },
1151 { 816, 0x6, 0x1, 1 },
1152 { 750, 0x6, 0x2, 1 },
1153 { 1024, 0x7, 0x0, 1 },
1154 { 1088, 0x7, 0x1, 1 },
1155 { 1000, 0x7, 0x2, 1 },
1156 { 1408, 0x8, 0x0, 1 },
1157 { 1496, 0x8, 0x1, 1 },
1158 { 1536, 0x9, 0x0, 1 },
1159 { 1632, 0x9, 0x1, 1 },
1160 { 1500, 0x9, 0x2, 1 },
1161
1162 { 250, 0x2, 0x2, 2 },
1163 { 256, 0x3, 0x0, 2 },
1164 { 272, 0x3, 0x1, 2 },
1165 { 384, 0x4, 0x0, 2 },
1166 { 408, 0x4, 0x1, 2 },
1167 { 375, 0x4, 0x2, 2 },
1168 { 512, 0x5, 0x0, 2 },
1169 { 544, 0x5, 0x1, 2 },
1170 { 500, 0x5, 0x2, 2 },
1171 { 768, 0x6, 0x0, 2 },
1172 { 816, 0x6, 0x1, 2 },
1173 { 750, 0x6, 0x2, 2 },
1174 { 1024, 0x7, 0x0, 2 },
1175 { 1088, 0x7, 0x1, 2 },
1176 { 1000, 0x7, 0x2, 2 },
1177 { 1408, 0x8, 0x0, 2 },
1178 { 1496, 0x8, 0x1, 2 },
1179 { 1536, 0x9, 0x0, 2 },
1180 { 1632, 0x9, 0x1, 2 },
1181 { 1500, 0x9, 0x2, 2 },
1182 };
1183
1184 /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
1185 static struct {
1186 int ratio;
1187 int div;
1188 } bclk_divs[] = {
1189 { 10, 0 },
1190 { 20, 2 },
1191 { 30, 3 },
1192 { 40, 4 },
1193 { 50, 5 },
1194 { 60, 7 },
1195 { 80, 8 },
1196 { 100, 9 },
1197 { 120, 11 },
1198 { 160, 12 },
1199 { 200, 13 },
1200 { 220, 14 },
1201 { 240, 15 },
1202 { 300, 17 },
1203 { 320, 18 },
1204 { 440, 19 },
1205 { 480, 20 },
1206 };
1207
1208 /* Sample rates for DSP */
1209 static struct {
1210 int rate;
1211 int value;
1212 } sample_rates[] = {
1213 { 8000, 0 },
1214 { 11025, 1 },
1215 { 12000, 2 },
1216 { 16000, 3 },
1217 { 22050, 4 },
1218 { 24000, 5 },
1219 { 32000, 6 },
1220 { 44100, 7 },
1221 { 48000, 8 },
1222 { 88200, 9 },
1223 { 96000, 10 },
1224 { 0, 0 },
1225 };
1226
1227 static int wm8903_startup(struct snd_pcm_substream *substream,
1228 struct snd_soc_dai *dai)
1229 {
1230 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1231 struct snd_soc_device *socdev = rtd->socdev;
1232 struct snd_soc_codec *codec = socdev->card->codec;
1233 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1234 struct i2c_client *i2c = codec->control_data;
1235 struct snd_pcm_runtime *master_runtime;
1236
1237 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1238 wm8903->playback_active++;
1239 else
1240 wm8903->capture_active++;
1241
1242 /* The DAI has shared clocks so if we already have a playback or
1243 * capture going then constrain this substream to match it.
1244 */
1245 if (wm8903->master_substream) {
1246 master_runtime = wm8903->master_substream->runtime;
1247
1248 dev_dbg(&i2c->dev, "Constraining to %d bits\n",
1249 master_runtime->sample_bits);
1250
1251 snd_pcm_hw_constraint_minmax(substream->runtime,
1252 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1253 master_runtime->sample_bits,
1254 master_runtime->sample_bits);
1255
1256 wm8903->slave_substream = substream;
1257 } else
1258 wm8903->master_substream = substream;
1259
1260 return 0;
1261 }
1262
1263 static void wm8903_shutdown(struct snd_pcm_substream *substream,
1264 struct snd_soc_dai *dai)
1265 {
1266 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1267 struct snd_soc_device *socdev = rtd->socdev;
1268 struct snd_soc_codec *codec = socdev->card->codec;
1269 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1270
1271 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1272 wm8903->playback_active--;
1273 else
1274 wm8903->capture_active--;
1275
1276 if (wm8903->master_substream == substream)
1277 wm8903->master_substream = wm8903->slave_substream;
1278
1279 wm8903->slave_substream = NULL;
1280 }
1281
1282 static int wm8903_hw_params(struct snd_pcm_substream *substream,
1283 struct snd_pcm_hw_params *params,
1284 struct snd_soc_dai *dai)
1285 {
1286 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1287 struct snd_soc_device *socdev = rtd->socdev;
1288 struct snd_soc_codec *codec = socdev->card->codec;
1289 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1290 struct i2c_client *i2c = codec->control_data;
1291 int fs = params_rate(params);
1292 int bclk;
1293 int bclk_div;
1294 int i;
1295 int dsp_config;
1296 int clk_config;
1297 int best_val;
1298 int cur_val;
1299 int clk_sys;
1300
1301 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1302 u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
1303 u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
1304 u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
1305 u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
1306 u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1307
1308 if (substream == wm8903->slave_substream) {
1309 dev_dbg(&i2c->dev, "Ignoring hw_params for slave substream\n");
1310 return 0;
1311 }
1312
1313 /* Enable sloping stopband filter for low sample rates */
1314 if (fs <= 24000)
1315 dac_digital1 |= WM8903_DAC_SB_FILT;
1316 else
1317 dac_digital1 &= ~WM8903_DAC_SB_FILT;
1318
1319 /* Configure sample rate logic for DSP - choose nearest rate */
1320 dsp_config = 0;
1321 best_val = abs(sample_rates[dsp_config].rate - fs);
1322 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1323 cur_val = abs(sample_rates[i].rate - fs);
1324 if (cur_val <= best_val) {
1325 dsp_config = i;
1326 best_val = cur_val;
1327 }
1328 }
1329
1330 /* Constraints should stop us hitting this but let's make sure */
1331 if (wm8903->capture_active)
1332 switch (sample_rates[dsp_config].rate) {
1333 case 88200:
1334 case 96000:
1335 dev_err(&i2c->dev, "%dHz unsupported by ADC\n",
1336 fs);
1337 return -EINVAL;
1338
1339 default:
1340 break;
1341 }
1342
1343 dev_dbg(&i2c->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
1344 clock1 &= ~WM8903_SAMPLE_RATE_MASK;
1345 clock1 |= sample_rates[dsp_config].value;
1346
1347 aif1 &= ~WM8903_AIF_WL_MASK;
1348 bclk = 2 * fs;
1349 switch (params_format(params)) {
1350 case SNDRV_PCM_FORMAT_S16_LE:
1351 bclk *= 16;
1352 break;
1353 case SNDRV_PCM_FORMAT_S20_3LE:
1354 bclk *= 20;
1355 aif1 |= 0x4;
1356 break;
1357 case SNDRV_PCM_FORMAT_S24_LE:
1358 bclk *= 24;
1359 aif1 |= 0x8;
1360 break;
1361 case SNDRV_PCM_FORMAT_S32_LE:
1362 bclk *= 32;
1363 aif1 |= 0xc;
1364 break;
1365 default:
1366 return -EINVAL;
1367 }
1368
1369 dev_dbg(&i2c->dev, "MCLK = %dHz, target sample rate = %dHz\n",
1370 wm8903->sysclk, fs);
1371
1372 /* We may not have an MCLK which allows us to generate exactly
1373 * the clock we want, particularly with USB derived inputs, so
1374 * approximate.
1375 */
1376 clk_config = 0;
1377 best_val = abs((wm8903->sysclk /
1378 (clk_sys_ratios[0].mclk_div *
1379 clk_sys_ratios[0].div)) - fs);
1380 for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
1381 cur_val = abs((wm8903->sysclk /
1382 (clk_sys_ratios[i].mclk_div *
1383 clk_sys_ratios[i].div)) - fs);
1384
1385 if (cur_val <= best_val) {
1386 clk_config = i;
1387 best_val = cur_val;
1388 }
1389 }
1390
1391 if (clk_sys_ratios[clk_config].mclk_div == 2) {
1392 clock0 |= WM8903_MCLKDIV2;
1393 clk_sys = wm8903->sysclk / 2;
1394 } else {
1395 clock0 &= ~WM8903_MCLKDIV2;
1396 clk_sys = wm8903->sysclk;
1397 }
1398
1399 clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
1400 WM8903_CLK_SYS_MODE_MASK);
1401 clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
1402 clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
1403
1404 dev_dbg(&i2c->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1405 clk_sys_ratios[clk_config].rate,
1406 clk_sys_ratios[clk_config].mode,
1407 clk_sys_ratios[clk_config].div);
1408
1409 dev_dbg(&i2c->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
1410
1411 /* We may not get quite the right frequency if using
1412 * approximate clocks so look for the closest match that is
1413 * higher than the target (we need to ensure that there enough
1414 * BCLKs to clock out the samples).
1415 */
1416 bclk_div = 0;
1417 best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
1418 i = 1;
1419 while (i < ARRAY_SIZE(bclk_divs)) {
1420 cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
1421 if (cur_val < 0) /* BCLK table is sorted */
1422 break;
1423 bclk_div = i;
1424 best_val = cur_val;
1425 i++;
1426 }
1427
1428 aif2 &= ~WM8903_BCLK_DIV_MASK;
1429 aif3 &= ~WM8903_LRCLK_RATE_MASK;
1430
1431 dev_dbg(&i2c->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1432 bclk_divs[bclk_div].ratio / 10, bclk,
1433 (clk_sys * 10) / bclk_divs[bclk_div].ratio);
1434
1435 aif2 |= bclk_divs[bclk_div].div;
1436 aif3 |= bclk / fs;
1437
1438 snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
1439 snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
1440 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1441 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
1442 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
1443 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
1444
1445 return 0;
1446 }
1447
1448 /**
1449 * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
1450 *
1451 * @codec: WM8903 codec
1452 * @jack: jack to report detection events on
1453 * @det: value to report for presence detection
1454 * @shrt: value to report for short detection
1455 *
1456 * Enable microphone detection via IRQ on the WM8903. If GPIOs are
1457 * being used to bring out signals to the processor then only platform
1458 * data configuration is needed for WM8903 and processor GPIOs should
1459 * be configured using snd_soc_jack_add_gpios() instead.
1460 *
1461 * The current threasholds for detection should be configured using
1462 * micdet_cfg in the platform data. Using this function will force on
1463 * the microphone bias for the device.
1464 */
1465 int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
1466 int det, int shrt)
1467 {
1468 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1469 int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
1470
1471 dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
1472 det, shrt);
1473
1474 /* Store the configuration */
1475 wm8903->mic_jack = jack;
1476 wm8903->mic_det = det;
1477 wm8903->mic_short = shrt;
1478
1479 /* Enable interrupts we've got a report configured for */
1480 if (det)
1481 irq_mask &= ~WM8903_MICDET_EINT;
1482 if (shrt)
1483 irq_mask &= ~WM8903_MICSHRT_EINT;
1484
1485 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1486 WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
1487 irq_mask);
1488
1489 if (det && shrt) {
1490 /* Enable mic detection, this may not have been set through
1491 * platform data (eg, if the defaults are OK). */
1492 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1493 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1494 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1495 WM8903_MICDET_ENA, WM8903_MICDET_ENA);
1496 } else {
1497 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1498 WM8903_MICDET_ENA, 0);
1499 }
1500
1501 return 0;
1502 }
1503 EXPORT_SYMBOL_GPL(wm8903_mic_detect);
1504
1505 static irqreturn_t wm8903_irq(int irq, void *data)
1506 {
1507 struct wm8903_priv *wm8903 = data;
1508 struct snd_soc_codec *codec = &wm8903->codec;
1509 int mic_report;
1510 int int_pol;
1511 int int_val = 0;
1512 int mask = ~snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1_MASK);
1513
1514 int_val = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
1515
1516 if (int_val & WM8903_WSEQ_BUSY_EINT) {
1517 dev_dbg(codec->dev, "Write sequencer done\n");
1518 complete(&wm8903->wseq);
1519 }
1520
1521 /*
1522 * The rest is microphone jack detection. We need to manually
1523 * invert the polarity of the interrupt after each event - to
1524 * simplify the code keep track of the last state we reported
1525 * and just invert the relevant bits in both the report and
1526 * the polarity register.
1527 */
1528 mic_report = wm8903->mic_last_report;
1529 int_pol = snd_soc_read(codec, WM8903_INTERRUPT_POLARITY_1);
1530
1531 if (int_val & WM8903_MICSHRT_EINT) {
1532 dev_dbg(codec->dev, "Microphone short (pol=%x)\n", int_pol);
1533
1534 mic_report ^= wm8903->mic_short;
1535 int_pol ^= WM8903_MICSHRT_INV;
1536 }
1537
1538 if (int_val & WM8903_MICDET_EINT) {
1539 dev_dbg(codec->dev, "Microphone detect (pol=%x)\n", int_pol);
1540
1541 mic_report ^= wm8903->mic_det;
1542 int_pol ^= WM8903_MICDET_INV;
1543
1544 msleep(wm8903->mic_delay);
1545 }
1546
1547 snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
1548 WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
1549
1550 snd_soc_jack_report(wm8903->mic_jack, mic_report,
1551 wm8903->mic_short | wm8903->mic_det);
1552
1553 wm8903->mic_last_report = mic_report;
1554
1555 return IRQ_HANDLED;
1556 }
1557
1558 #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1559 SNDRV_PCM_RATE_11025 | \
1560 SNDRV_PCM_RATE_16000 | \
1561 SNDRV_PCM_RATE_22050 | \
1562 SNDRV_PCM_RATE_32000 | \
1563 SNDRV_PCM_RATE_44100 | \
1564 SNDRV_PCM_RATE_48000 | \
1565 SNDRV_PCM_RATE_88200 | \
1566 SNDRV_PCM_RATE_96000)
1567
1568 #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1569 SNDRV_PCM_RATE_11025 | \
1570 SNDRV_PCM_RATE_16000 | \
1571 SNDRV_PCM_RATE_22050 | \
1572 SNDRV_PCM_RATE_32000 | \
1573 SNDRV_PCM_RATE_44100 | \
1574 SNDRV_PCM_RATE_48000)
1575
1576 #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1577 SNDRV_PCM_FMTBIT_S20_3LE |\
1578 SNDRV_PCM_FMTBIT_S24_LE)
1579
1580 static struct snd_soc_dai_ops wm8903_dai_ops = {
1581 .startup = wm8903_startup,
1582 .shutdown = wm8903_shutdown,
1583 .hw_params = wm8903_hw_params,
1584 .digital_mute = wm8903_digital_mute,
1585 .set_fmt = wm8903_set_dai_fmt,
1586 .set_sysclk = wm8903_set_dai_sysclk,
1587 };
1588
1589 struct snd_soc_dai wm8903_dai = {
1590 .name = "WM8903",
1591 .playback = {
1592 .stream_name = "Playback",
1593 .channels_min = 2,
1594 .channels_max = 2,
1595 .rates = WM8903_PLAYBACK_RATES,
1596 .formats = WM8903_FORMATS,
1597 },
1598 .capture = {
1599 .stream_name = "Capture",
1600 .channels_min = 2,
1601 .channels_max = 2,
1602 .rates = WM8903_CAPTURE_RATES,
1603 .formats = WM8903_FORMATS,
1604 },
1605 .ops = &wm8903_dai_ops,
1606 .symmetric_rates = 1,
1607 };
1608 EXPORT_SYMBOL_GPL(wm8903_dai);
1609
1610 static int wm8903_suspend(struct platform_device *pdev, pm_message_t state)
1611 {
1612 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1613 struct snd_soc_codec *codec = socdev->card->codec;
1614
1615 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1616
1617 return 0;
1618 }
1619
1620 static int wm8903_resume(struct platform_device *pdev)
1621 {
1622 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1623 struct snd_soc_codec *codec = socdev->card->codec;
1624 struct i2c_client *i2c = codec->control_data;
1625 int i;
1626 u16 *reg_cache = codec->reg_cache;
1627 u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults),
1628 GFP_KERNEL);
1629
1630 /* Bring the codec back up to standby first to minimise pop/clicks */
1631 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1632
1633 /* Sync back everything else */
1634 if (tmp_cache) {
1635 for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
1636 if (tmp_cache[i] != reg_cache[i])
1637 snd_soc_write(codec, i, tmp_cache[i]);
1638 kfree(tmp_cache);
1639 } else {
1640 dev_err(&i2c->dev, "Failed to allocate temporary cache\n");
1641 }
1642
1643 return 0;
1644 }
1645
1646 static struct snd_soc_codec *wm8903_codec;
1647
1648 static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
1649 const struct i2c_device_id *id)
1650 {
1651 struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
1652 struct wm8903_priv *wm8903;
1653 struct snd_soc_codec *codec;
1654 int ret, i;
1655 int trigger, irq_pol;
1656 u16 val;
1657
1658 wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
1659 if (wm8903 == NULL)
1660 return -ENOMEM;
1661
1662 codec = &wm8903->codec;
1663
1664 mutex_init(&codec->mutex);
1665 INIT_LIST_HEAD(&codec->dapm_widgets);
1666 INIT_LIST_HEAD(&codec->dapm_paths);
1667
1668 codec->dev = &i2c->dev;
1669 codec->name = "WM8903";
1670 codec->owner = THIS_MODULE;
1671 codec->bias_level = SND_SOC_BIAS_OFF;
1672 codec->set_bias_level = wm8903_set_bias_level;
1673 codec->dai = &wm8903_dai;
1674 codec->num_dai = 1;
1675 codec->reg_cache_size = ARRAY_SIZE(wm8903->reg_cache);
1676 codec->reg_cache = &wm8903->reg_cache[0];
1677 snd_soc_codec_set_drvdata(codec, wm8903);
1678 codec->volatile_register = wm8903_volatile_register;
1679 init_completion(&wm8903->wseq);
1680
1681 i2c_set_clientdata(i2c, codec);
1682 codec->control_data = i2c;
1683
1684 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
1685 if (ret != 0) {
1686 dev_err(&i2c->dev, "Failed to set cache I/O: %d\n", ret);
1687 goto err;
1688 }
1689
1690 val = snd_soc_read(codec, WM8903_SW_RESET_AND_ID);
1691 if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) {
1692 dev_err(&i2c->dev,
1693 "Device with ID register %x is not a WM8903\n", val);
1694 return -ENODEV;
1695 }
1696
1697 val = snd_soc_read(codec, WM8903_REVISION_NUMBER);
1698 dev_info(&i2c->dev, "WM8903 revision %d\n",
1699 val & WM8903_CHIP_REV_MASK);
1700
1701 wm8903_reset(codec);
1702
1703 /* Set up GPIOs and microphone detection */
1704 if (pdata) {
1705 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
1706 if (!pdata->gpio_cfg[i])
1707 continue;
1708
1709 snd_soc_write(codec, WM8903_GPIO_CONTROL_1 + i,
1710 pdata->gpio_cfg[i] & 0xffff);
1711 }
1712
1713 snd_soc_write(codec, WM8903_MIC_BIAS_CONTROL_0,
1714 pdata->micdet_cfg);
1715
1716 /* Microphone detection needs the WSEQ clock */
1717 if (pdata->micdet_cfg)
1718 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1719 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1720
1721 wm8903->mic_delay = pdata->micdet_delay;
1722 }
1723
1724 if (i2c->irq) {
1725 if (pdata && pdata->irq_active_low) {
1726 trigger = IRQF_TRIGGER_LOW;
1727 irq_pol = WM8903_IRQ_POL;
1728 } else {
1729 trigger = IRQF_TRIGGER_HIGH;
1730 irq_pol = 0;
1731 }
1732
1733 snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL,
1734 WM8903_IRQ_POL, irq_pol);
1735
1736 ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
1737 trigger | IRQF_ONESHOT,
1738 "wm8903", wm8903);
1739 if (ret != 0) {
1740 dev_err(&i2c->dev, "Failed to request IRQ: %d\n",
1741 ret);
1742 goto err;
1743 }
1744
1745 /* Enable write sequencer interrupts */
1746 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1747 WM8903_IM_WSEQ_BUSY_EINT, 0);
1748 }
1749
1750 /* power on device */
1751 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1752
1753 /* Latch volume update bits */
1754 val = snd_soc_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
1755 val |= WM8903_ADCVU;
1756 snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
1757 snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
1758
1759 val = snd_soc_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
1760 val |= WM8903_DACVU;
1761 snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
1762 snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
1763
1764 val = snd_soc_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
1765 val |= WM8903_HPOUTVU;
1766 snd_soc_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
1767 snd_soc_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
1768
1769 val = snd_soc_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
1770 val |= WM8903_LINEOUTVU;
1771 snd_soc_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
1772 snd_soc_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
1773
1774 val = snd_soc_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
1775 val |= WM8903_SPKVU;
1776 snd_soc_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
1777 snd_soc_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
1778
1779 /* Enable DAC soft mute by default */
1780 val = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1781 val |= WM8903_DAC_MUTEMODE;
1782 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, val);
1783
1784 wm8903_dai.dev = &i2c->dev;
1785 wm8903_codec = codec;
1786
1787 ret = snd_soc_register_codec(codec);
1788 if (ret != 0) {
1789 dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
1790 goto err_irq;
1791 }
1792
1793 ret = snd_soc_register_dai(&wm8903_dai);
1794 if (ret != 0) {
1795 dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret);
1796 goto err_codec;
1797 }
1798
1799 return ret;
1800
1801 err_codec:
1802 snd_soc_unregister_codec(codec);
1803 err_irq:
1804 if (i2c->irq)
1805 free_irq(i2c->irq, wm8903);
1806 err:
1807 wm8903_codec = NULL;
1808 kfree(wm8903);
1809 return ret;
1810 }
1811
1812 static __devexit int wm8903_i2c_remove(struct i2c_client *client)
1813 {
1814 struct snd_soc_codec *codec = i2c_get_clientdata(client);
1815 struct wm8903_priv *priv = snd_soc_codec_get_drvdata(codec);
1816
1817 snd_soc_unregister_dai(&wm8903_dai);
1818 snd_soc_unregister_codec(codec);
1819
1820 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1821
1822 if (client->irq)
1823 free_irq(client->irq, priv);
1824
1825 kfree(priv);
1826
1827 wm8903_codec = NULL;
1828 wm8903_dai.dev = NULL;
1829
1830 return 0;
1831 }
1832
1833 /* i2c codec control layer */
1834 static const struct i2c_device_id wm8903_i2c_id[] = {
1835 { "wm8903", 0 },
1836 { }
1837 };
1838 MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
1839
1840 static struct i2c_driver wm8903_i2c_driver = {
1841 .driver = {
1842 .name = "WM8903",
1843 .owner = THIS_MODULE,
1844 },
1845 .probe = wm8903_i2c_probe,
1846 .remove = __devexit_p(wm8903_i2c_remove),
1847 .id_table = wm8903_i2c_id,
1848 };
1849
1850 static int wm8903_probe(struct platform_device *pdev)
1851 {
1852 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1853 int ret = 0;
1854
1855 if (!wm8903_codec) {
1856 dev_err(&pdev->dev, "I2C device not yet probed\n");
1857 goto err;
1858 }
1859
1860 socdev->card->codec = wm8903_codec;
1861
1862 /* register pcms */
1863 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1864 if (ret < 0) {
1865 dev_err(&pdev->dev, "failed to create pcms\n");
1866 goto err;
1867 }
1868
1869 snd_soc_add_controls(socdev->card->codec, wm8903_snd_controls,
1870 ARRAY_SIZE(wm8903_snd_controls));
1871 wm8903_add_widgets(socdev->card->codec);
1872
1873 return ret;
1874
1875 err:
1876 return ret;
1877 }
1878
1879 /* power down chip */
1880 static int wm8903_remove(struct platform_device *pdev)
1881 {
1882 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1883 struct snd_soc_codec *codec = socdev->card->codec;
1884
1885 if (codec->control_data)
1886 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1887
1888 snd_soc_free_pcms(socdev);
1889 snd_soc_dapm_free(socdev);
1890
1891 return 0;
1892 }
1893
1894 struct snd_soc_codec_device soc_codec_dev_wm8903 = {
1895 .probe = wm8903_probe,
1896 .remove = wm8903_remove,
1897 .suspend = wm8903_suspend,
1898 .resume = wm8903_resume,
1899 };
1900 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8903);
1901
1902 static int __init wm8903_modinit(void)
1903 {
1904 return i2c_add_driver(&wm8903_i2c_driver);
1905 }
1906 module_init(wm8903_modinit);
1907
1908 static void __exit wm8903_exit(void)
1909 {
1910 i2c_del_driver(&wm8903_i2c_driver);
1911 }
1912 module_exit(wm8903_exit);
1913
1914 MODULE_DESCRIPTION("ASoC WM8903 driver");
1915 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
1916 MODULE_LICENSE("GPL");
Linux with added FPC-III support