?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Revert "microblaze_mmu_v2: Update signal returning address"
[linux/fpc-iii.git] / sound / soc / codecs / wm8904.c
blobdc4262eea4b711990c71e602fe1a0fba7928250b
1 /*
2 * wm8904.c -- WM8904 ALSA SoC Audio driver
3 *
4 * Copyright 2009-12 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
18 #include <linux/pm.h>
19 #include <linux/i2c.h>
20 #include <linux/regmap.h>
21 #include <linux/regulator/consumer.h>
22 #include <linux/slab.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/soc.h>
27 #include <sound/initval.h>
28 #include <sound/tlv.h>
29 #include <sound/wm8904.h>
30
31 #include "wm8904.h"
32
33 enum wm8904_type {
34 WM8904,
35 WM8912,
36 };
37
38 #define WM8904_NUM_DCS_CHANNELS 4
39
40 #define WM8904_NUM_SUPPLIES 5
41 static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = {
42 "DCVDD",
43 "DBVDD",
44 "AVDD",
45 "CPVDD",
46 "MICVDD",
47 };
48
49 /* codec private data */
50 struct wm8904_priv {
51 struct regmap *regmap;
52
53 enum wm8904_type devtype;
54
55 struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];
56
57 struct wm8904_pdata *pdata;
58
59 int deemph;
60
61 /* Platform provided DRC configuration */
62 const char **drc_texts;
63 int drc_cfg;
64 struct soc_enum drc_enum;
65
66 /* Platform provided ReTune mobile configuration */
67 int num_retune_mobile_texts;
68 const char **retune_mobile_texts;
69 int retune_mobile_cfg;
70 struct soc_enum retune_mobile_enum;
71
72 /* FLL setup */
73 int fll_src;
74 int fll_fref;
75 int fll_fout;
76
77 /* Clocking configuration */
78 unsigned int mclk_rate;
79 int sysclk_src;
80 unsigned int sysclk_rate;
81
82 int tdm_width;
83 int tdm_slots;
84 int bclk;
85 int fs;
86
87 /* DC servo configuration - cached offset values */
88 int dcs_state[WM8904_NUM_DCS_CHANNELS];
89 };
90
91 static const struct reg_default wm8904_reg_defaults[] = {
92 { 4, 0x0018 }, /* R4 - Bias Control 0 */
93 { 5, 0x0000 }, /* R5 - VMID Control 0 */
94 { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */
95 { 7, 0x0000 }, /* R7 - Mic Bias Control 1 */
96 { 8, 0x0001 }, /* R8 - Analogue DAC 0 */
97 { 9, 0x9696 }, /* R9 - mic Filter Control */
98 { 10, 0x0001 }, /* R10 - Analogue ADC 0 */
99 { 12, 0x0000 }, /* R12 - Power Management 0 */
100 { 14, 0x0000 }, /* R14 - Power Management 2 */
101 { 15, 0x0000 }, /* R15 - Power Management 3 */
102 { 18, 0x0000 }, /* R18 - Power Management 6 */
103 { 20, 0x945E }, /* R20 - Clock Rates 0 */
104 { 21, 0x0C05 }, /* R21 - Clock Rates 1 */
105 { 22, 0x0006 }, /* R22 - Clock Rates 2 */
106 { 24, 0x0050 }, /* R24 - Audio Interface 0 */
107 { 25, 0x000A }, /* R25 - Audio Interface 1 */
108 { 26, 0x00E4 }, /* R26 - Audio Interface 2 */
109 { 27, 0x0040 }, /* R27 - Audio Interface 3 */
110 { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */
111 { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */
112 { 32, 0x0000 }, /* R32 - DAC Digital 0 */
113 { 33, 0x0008 }, /* R33 - DAC Digital 1 */
114 { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */
115 { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */
116 { 38, 0x0010 }, /* R38 - ADC Digital 0 */
117 { 39, 0x0000 }, /* R39 - Digital Microphone 0 */
118 { 40, 0x01AF }, /* R40 - DRC 0 */
119 { 41, 0x3248 }, /* R41 - DRC 1 */
120 { 42, 0x0000 }, /* R42 - DRC 2 */
121 { 43, 0x0000 }, /* R43 - DRC 3 */
122 { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */
123 { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */
124 { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */
125 { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */
126 { 57, 0x002D }, /* R57 - Analogue OUT1 Left */
127 { 58, 0x002D }, /* R58 - Analogue OUT1 Right */
128 { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */
129 { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */
130 { 61, 0x0000 }, /* R61 - Analogue OUT12 ZC */
131 { 67, 0x0000 }, /* R67 - DC Servo 0 */
132 { 69, 0xAAAA }, /* R69 - DC Servo 2 */
133 { 71, 0xAAAA }, /* R71 - DC Servo 4 */
134 { 72, 0xAAAA }, /* R72 - DC Servo 5 */
135 { 90, 0x0000 }, /* R90 - Analogue HP 0 */
136 { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */
137 { 98, 0x0000 }, /* R98 - Charge Pump 0 */
138 { 104, 0x0004 }, /* R104 - Class W 0 */
139 { 108, 0x0000 }, /* R108 - Write Sequencer 0 */
140 { 109, 0x0000 }, /* R109 - Write Sequencer 1 */
141 { 110, 0x0000 }, /* R110 - Write Sequencer 2 */
142 { 111, 0x0000 }, /* R111 - Write Sequencer 3 */
143 { 112, 0x0000 }, /* R112 - Write Sequencer 4 */
144 { 116, 0x0000 }, /* R116 - FLL Control 1 */
145 { 117, 0x0007 }, /* R117 - FLL Control 2 */
146 { 118, 0x0000 }, /* R118 - FLL Control 3 */
147 { 119, 0x2EE0 }, /* R119 - FLL Control 4 */
148 { 120, 0x0004 }, /* R120 - FLL Control 5 */
149 { 121, 0x0014 }, /* R121 - GPIO Control 1 */
150 { 122, 0x0010 }, /* R122 - GPIO Control 2 */
151 { 123, 0x0010 }, /* R123 - GPIO Control 3 */
152 { 124, 0x0000 }, /* R124 - GPIO Control 4 */
153 { 126, 0x0000 }, /* R126 - Digital Pulls */
154 { 128, 0xFFFF }, /* R128 - Interrupt Status Mask */
155 { 129, 0x0000 }, /* R129 - Interrupt Polarity */
156 { 130, 0x0000 }, /* R130 - Interrupt Debounce */
157 { 134, 0x0000 }, /* R134 - EQ1 */
158 { 135, 0x000C }, /* R135 - EQ2 */
159 { 136, 0x000C }, /* R136 - EQ3 */
160 { 137, 0x000C }, /* R137 - EQ4 */
161 { 138, 0x000C }, /* R138 - EQ5 */
162 { 139, 0x000C }, /* R139 - EQ6 */
163 { 140, 0x0FCA }, /* R140 - EQ7 */
164 { 141, 0x0400 }, /* R141 - EQ8 */
165 { 142, 0x00D8 }, /* R142 - EQ9 */
166 { 143, 0x1EB5 }, /* R143 - EQ10 */
167 { 144, 0xF145 }, /* R144 - EQ11 */
168 { 145, 0x0B75 }, /* R145 - EQ12 */
169 { 146, 0x01C5 }, /* R146 - EQ13 */
170 { 147, 0x1C58 }, /* R147 - EQ14 */
171 { 148, 0xF373 }, /* R148 - EQ15 */
172 { 149, 0x0A54 }, /* R149 - EQ16 */
173 { 150, 0x0558 }, /* R150 - EQ17 */
174 { 151, 0x168E }, /* R151 - EQ18 */
175 { 152, 0xF829 }, /* R152 - EQ19 */
176 { 153, 0x07AD }, /* R153 - EQ20 */
177 { 154, 0x1103 }, /* R154 - EQ21 */
178 { 155, 0x0564 }, /* R155 - EQ22 */
179 { 156, 0x0559 }, /* R156 - EQ23 */
180 { 157, 0x4000 }, /* R157 - EQ24 */
181 { 161, 0x0000 }, /* R161 - Control Interface Test 1 */
182 { 204, 0x0000 }, /* R204 - Analogue Output Bias 0 */
183 { 247, 0x0000 }, /* R247 - FLL NCO Test 0 */
184 { 248, 0x0019 }, /* R248 - FLL NCO Test 1 */
185 };
186
187 static bool wm8904_volatile_register(struct device *dev, unsigned int reg)
188 {
189 switch (reg) {
190 case WM8904_SW_RESET_AND_ID:
191 case WM8904_REVISION:
192 case WM8904_DC_SERVO_1:
193 case WM8904_DC_SERVO_6:
194 case WM8904_DC_SERVO_7:
195 case WM8904_DC_SERVO_8:
196 case WM8904_DC_SERVO_9:
197 case WM8904_DC_SERVO_READBACK_0:
198 case WM8904_INTERRUPT_STATUS:
199 return true;
200 default:
201 return false;
202 }
203 }
204
205 static bool wm8904_readable_register(struct device *dev, unsigned int reg)
206 {
207 switch (reg) {
208 case WM8904_SW_RESET_AND_ID:
209 case WM8904_REVISION:
210 case WM8904_BIAS_CONTROL_0:
211 case WM8904_VMID_CONTROL_0:
212 case WM8904_MIC_BIAS_CONTROL_0:
213 case WM8904_MIC_BIAS_CONTROL_1:
214 case WM8904_ANALOGUE_DAC_0:
215 case WM8904_MIC_FILTER_CONTROL:
216 case WM8904_ANALOGUE_ADC_0:
217 case WM8904_POWER_MANAGEMENT_0:
218 case WM8904_POWER_MANAGEMENT_2:
219 case WM8904_POWER_MANAGEMENT_3:
220 case WM8904_POWER_MANAGEMENT_6:
221 case WM8904_CLOCK_RATES_0:
222 case WM8904_CLOCK_RATES_1:
223 case WM8904_CLOCK_RATES_2:
224 case WM8904_AUDIO_INTERFACE_0:
225 case WM8904_AUDIO_INTERFACE_1:
226 case WM8904_AUDIO_INTERFACE_2:
227 case WM8904_AUDIO_INTERFACE_3:
228 case WM8904_DAC_DIGITAL_VOLUME_LEFT:
229 case WM8904_DAC_DIGITAL_VOLUME_RIGHT:
230 case WM8904_DAC_DIGITAL_0:
231 case WM8904_DAC_DIGITAL_1:
232 case WM8904_ADC_DIGITAL_VOLUME_LEFT:
233 case WM8904_ADC_DIGITAL_VOLUME_RIGHT:
234 case WM8904_ADC_DIGITAL_0:
235 case WM8904_DIGITAL_MICROPHONE_0:
236 case WM8904_DRC_0:
237 case WM8904_DRC_1:
238 case WM8904_DRC_2:
239 case WM8904_DRC_3:
240 case WM8904_ANALOGUE_LEFT_INPUT_0:
241 case WM8904_ANALOGUE_RIGHT_INPUT_0:
242 case WM8904_ANALOGUE_LEFT_INPUT_1:
243 case WM8904_ANALOGUE_RIGHT_INPUT_1:
244 case WM8904_ANALOGUE_OUT1_LEFT:
245 case WM8904_ANALOGUE_OUT1_RIGHT:
246 case WM8904_ANALOGUE_OUT2_LEFT:
247 case WM8904_ANALOGUE_OUT2_RIGHT:
248 case WM8904_ANALOGUE_OUT12_ZC:
249 case WM8904_DC_SERVO_0:
250 case WM8904_DC_SERVO_1:
251 case WM8904_DC_SERVO_2:
252 case WM8904_DC_SERVO_4:
253 case WM8904_DC_SERVO_5:
254 case WM8904_DC_SERVO_6:
255 case WM8904_DC_SERVO_7:
256 case WM8904_DC_SERVO_8:
257 case WM8904_DC_SERVO_9:
258 case WM8904_DC_SERVO_READBACK_0:
259 case WM8904_ANALOGUE_HP_0:
260 case WM8904_ANALOGUE_LINEOUT_0:
261 case WM8904_CHARGE_PUMP_0:
262 case WM8904_CLASS_W_0:
263 case WM8904_WRITE_SEQUENCER_0:
264 case WM8904_WRITE_SEQUENCER_1:
265 case WM8904_WRITE_SEQUENCER_2:
266 case WM8904_WRITE_SEQUENCER_3:
267 case WM8904_WRITE_SEQUENCER_4:
268 case WM8904_FLL_CONTROL_1:
269 case WM8904_FLL_CONTROL_2:
270 case WM8904_FLL_CONTROL_3:
271 case WM8904_FLL_CONTROL_4:
272 case WM8904_FLL_CONTROL_5:
273 case WM8904_GPIO_CONTROL_1:
274 case WM8904_GPIO_CONTROL_2:
275 case WM8904_GPIO_CONTROL_3:
276 case WM8904_GPIO_CONTROL_4:
277 case WM8904_DIGITAL_PULLS:
278 case WM8904_INTERRUPT_STATUS:
279 case WM8904_INTERRUPT_STATUS_MASK:
280 case WM8904_INTERRUPT_POLARITY:
281 case WM8904_INTERRUPT_DEBOUNCE:
282 case WM8904_EQ1:
283 case WM8904_EQ2:
284 case WM8904_EQ3:
285 case WM8904_EQ4:
286 case WM8904_EQ5:
287 case WM8904_EQ6:
288 case WM8904_EQ7:
289 case WM8904_EQ8:
290 case WM8904_EQ9:
291 case WM8904_EQ10:
292 case WM8904_EQ11:
293 case WM8904_EQ12:
294 case WM8904_EQ13:
295 case WM8904_EQ14:
296 case WM8904_EQ15:
297 case WM8904_EQ16:
298 case WM8904_EQ17:
299 case WM8904_EQ18:
300 case WM8904_EQ19:
301 case WM8904_EQ20:
302 case WM8904_EQ21:
303 case WM8904_EQ22:
304 case WM8904_EQ23:
305 case WM8904_EQ24:
306 case WM8904_CONTROL_INTERFACE_TEST_1:
307 case WM8904_ADC_TEST_0:
308 case WM8904_ANALOGUE_OUTPUT_BIAS_0:
309 case WM8904_FLL_NCO_TEST_0:
310 case WM8904_FLL_NCO_TEST_1:
311 return true;
312 default:
313 return true;
314 }
315 }
316
317 static int wm8904_configure_clocking(struct snd_soc_codec *codec)
318 {
319 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
320 unsigned int clock0, clock2, rate;
321
322 /* Gate the clock while we're updating to avoid misclocking */
323 clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2);
324 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
325 WM8904_SYSCLK_SRC, 0);
326
327 /* This should be done on init() for bypass paths */
328 switch (wm8904->sysclk_src) {
329 case WM8904_CLK_MCLK:
330 dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8904->mclk_rate);
331
332 clock2 &= ~WM8904_SYSCLK_SRC;
333 rate = wm8904->mclk_rate;
334
335 /* Ensure the FLL is stopped */
336 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
337 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
338 break;
339
340 case WM8904_CLK_FLL:
341 dev_dbg(codec->dev, "Using %dHz FLL clock\n",
342 wm8904->fll_fout);
343
344 clock2 |= WM8904_SYSCLK_SRC;
345 rate = wm8904->fll_fout;
346 break;
347
348 default:
349 dev_err(codec->dev, "System clock not configured\n");
350 return -EINVAL;
351 }
352
353 /* SYSCLK shouldn't be over 13.5MHz */
354 if (rate > 13500000) {
355 clock0 = WM8904_MCLK_DIV;
356 wm8904->sysclk_rate = rate / 2;
357 } else {
358 clock0 = 0;
359 wm8904->sysclk_rate = rate;
360 }
361
362 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, WM8904_MCLK_DIV,
363 clock0);
364
365 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
366 WM8904_CLK_SYS_ENA | WM8904_SYSCLK_SRC, clock2);
367
368 dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8904->sysclk_rate);
369
370 return 0;
371 }
372
373 static void wm8904_set_drc(struct snd_soc_codec *codec)
374 {
375 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
376 struct wm8904_pdata *pdata = wm8904->pdata;
377 int save, i;
378
379 /* Save any enables; the configuration should clear them. */
380 save = snd_soc_read(codec, WM8904_DRC_0);
381
382 for (i = 0; i < WM8904_DRC_REGS; i++)
383 snd_soc_update_bits(codec, WM8904_DRC_0 + i, 0xffff,
384 pdata->drc_cfgs[wm8904->drc_cfg].regs[i]);
385
386 /* Reenable the DRC */
387 snd_soc_update_bits(codec, WM8904_DRC_0,
388 WM8904_DRC_ENA | WM8904_DRC_DAC_PATH, save);
389 }
390
391 static int wm8904_put_drc_enum(struct snd_kcontrol *kcontrol,
392 struct snd_ctl_elem_value *ucontrol)
393 {
394 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
395 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
396 struct wm8904_pdata *pdata = wm8904->pdata;
397 int value = ucontrol->value.integer.value[0];
398
399 if (value >= pdata->num_drc_cfgs)
400 return -EINVAL;
401
402 wm8904->drc_cfg = value;
403
404 wm8904_set_drc(codec);
405
406 return 0;
407 }
408
409 static int wm8904_get_drc_enum(struct snd_kcontrol *kcontrol,
410 struct snd_ctl_elem_value *ucontrol)
411 {
412 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
413 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
414
415 ucontrol->value.enumerated.item[0] = wm8904->drc_cfg;
416
417 return 0;
418 }
419
420 static void wm8904_set_retune_mobile(struct snd_soc_codec *codec)
421 {
422 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
423 struct wm8904_pdata *pdata = wm8904->pdata;
424 int best, best_val, save, i, cfg;
425
426 if (!pdata || !wm8904->num_retune_mobile_texts)
427 return;
428
429 /* Find the version of the currently selected configuration
430 * with the nearest sample rate. */
431 cfg = wm8904->retune_mobile_cfg;
432 best = 0;
433 best_val = INT_MAX;
434 for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
435 if (strcmp(pdata->retune_mobile_cfgs[i].name,
436 wm8904->retune_mobile_texts[cfg]) == 0 &&
437 abs(pdata->retune_mobile_cfgs[i].rate
438 - wm8904->fs) < best_val) {
439 best = i;
440 best_val = abs(pdata->retune_mobile_cfgs[i].rate
441 - wm8904->fs);
442 }
443 }
444
445 dev_dbg(codec->dev, "ReTune Mobile %s/%dHz for %dHz sample rate\n",
446 pdata->retune_mobile_cfgs[best].name,
447 pdata->retune_mobile_cfgs[best].rate,
448 wm8904->fs);
449
450 /* The EQ will be disabled while reconfiguring it, remember the
451 * current configuration.
452 */
453 save = snd_soc_read(codec, WM8904_EQ1);
454
455 for (i = 0; i < WM8904_EQ_REGS; i++)
456 snd_soc_update_bits(codec, WM8904_EQ1 + i, 0xffff,
457 pdata->retune_mobile_cfgs[best].regs[i]);
458
459 snd_soc_update_bits(codec, WM8904_EQ1, WM8904_EQ_ENA, save);
460 }
461
462 static int wm8904_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
463 struct snd_ctl_elem_value *ucontrol)
464 {
465 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
466 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
467 struct wm8904_pdata *pdata = wm8904->pdata;
468 int value = ucontrol->value.integer.value[0];
469
470 if (value >= pdata->num_retune_mobile_cfgs)
471 return -EINVAL;
472
473 wm8904->retune_mobile_cfg = value;
474
475 wm8904_set_retune_mobile(codec);
476
477 return 0;
478 }
479
480 static int wm8904_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
481 struct snd_ctl_elem_value *ucontrol)
482 {
483 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
484 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
485
486 ucontrol->value.enumerated.item[0] = wm8904->retune_mobile_cfg;
487
488 return 0;
489 }
490
491 static int deemph_settings[] = { 0, 32000, 44100, 48000 };
492
493 static int wm8904_set_deemph(struct snd_soc_codec *codec)
494 {
495 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
496 int val, i, best;
497
498 /* If we're using deemphasis select the nearest available sample
499 * rate.
500 */
501 if (wm8904->deemph) {
502 best = 1;
503 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
504 if (abs(deemph_settings[i] - wm8904->fs) <
505 abs(deemph_settings[best] - wm8904->fs))
506 best = i;
507 }
508
509 val = best << WM8904_DEEMPH_SHIFT;
510 } else {
511 val = 0;
512 }
513
514 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
515
516 return snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1,
517 WM8904_DEEMPH_MASK, val);
518 }
519
520 static int wm8904_get_deemph(struct snd_kcontrol *kcontrol,
521 struct snd_ctl_elem_value *ucontrol)
522 {
523 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
524 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
525
526 ucontrol->value.enumerated.item[0] = wm8904->deemph;
527 return 0;
528 }
529
530 static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
531 struct snd_ctl_elem_value *ucontrol)
532 {
533 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
534 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
535 int deemph = ucontrol->value.enumerated.item[0];
536
537 if (deemph > 1)
538 return -EINVAL;
539
540 wm8904->deemph = deemph;
541
542 return wm8904_set_deemph(codec);
543 }
544
545 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
546 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
547 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
548 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
549 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
550
551 static const char *input_mode_text[] = {
552 "Single-Ended", "Differential Line", "Differential Mic"
553 };
554
555 static const struct soc_enum lin_mode =
556 SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
557
558 static const struct soc_enum rin_mode =
559 SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
560
561 static const char *hpf_mode_text[] = {
562 "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
563 };
564
565 static const struct soc_enum hpf_mode =
566 SOC_ENUM_SINGLE(WM8904_ADC_DIGITAL_0, 5, 4, hpf_mode_text);
567
568 static int wm8904_adc_osr_put(struct snd_kcontrol *kcontrol,
569 struct snd_ctl_elem_value *ucontrol)
570 {
571 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
572 unsigned int val;
573 int ret;
574
575 ret = snd_soc_put_volsw(kcontrol, ucontrol);
576 if (ret < 0)
577 return ret;
578
579 if (ucontrol->value.integer.value[0])
580 val = 0;
581 else
582 val = WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5;
583
584 snd_soc_update_bits(codec, WM8904_ADC_TEST_0,
585 WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5,
586 val);
587
588 return ret;
589 }
590
591 static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = {
592 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8904_ADC_DIGITAL_VOLUME_LEFT,
593 WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1, 119, 0, digital_tlv),
594
595 SOC_ENUM("Left Caputure Mode", lin_mode),
596 SOC_ENUM("Right Capture Mode", rin_mode),
597
598 /* No TLV since it depends on mode */
599 SOC_DOUBLE_R("Capture Volume", WM8904_ANALOGUE_LEFT_INPUT_0,
600 WM8904_ANALOGUE_RIGHT_INPUT_0, 0, 31, 0),
601 SOC_DOUBLE_R("Capture Switch", WM8904_ANALOGUE_LEFT_INPUT_0,
602 WM8904_ANALOGUE_RIGHT_INPUT_0, 7, 1, 1),
603
604 SOC_SINGLE("High Pass Filter Switch", WM8904_ADC_DIGITAL_0, 4, 1, 0),
605 SOC_ENUM("High Pass Filter Mode", hpf_mode),
606
607 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
608 .name = "ADC 128x OSR Switch",
609 .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,
610 .put = wm8904_adc_osr_put,
611 .private_value = SOC_SINGLE_VALUE(WM8904_ANALOGUE_ADC_0, 0, 1, 0),
612 },
613 };
614
615 static const char *drc_path_text[] = {
616 "ADC", "DAC"
617 };
618
619 static const struct soc_enum drc_path =
620 SOC_ENUM_SINGLE(WM8904_DRC_0, 14, 2, drc_path_text);
621
622 static const struct snd_kcontrol_new wm8904_dac_snd_controls[] = {
623 SOC_SINGLE_TLV("Digital Playback Boost Volume",
624 WM8904_AUDIO_INTERFACE_0, 9, 3, 0, dac_boost_tlv),
625 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8904_DAC_DIGITAL_VOLUME_LEFT,
626 WM8904_DAC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
627
628 SOC_DOUBLE_R_TLV("Headphone Volume", WM8904_ANALOGUE_OUT1_LEFT,
629 WM8904_ANALOGUE_OUT1_RIGHT, 0, 63, 0, out_tlv),
630 SOC_DOUBLE_R("Headphone Switch", WM8904_ANALOGUE_OUT1_LEFT,
631 WM8904_ANALOGUE_OUT1_RIGHT, 8, 1, 1),
632 SOC_DOUBLE_R("Headphone ZC Switch", WM8904_ANALOGUE_OUT1_LEFT,
633 WM8904_ANALOGUE_OUT1_RIGHT, 6, 1, 0),
634
635 SOC_DOUBLE_R_TLV("Line Output Volume", WM8904_ANALOGUE_OUT2_LEFT,
636 WM8904_ANALOGUE_OUT2_RIGHT, 0, 63, 0, out_tlv),
637 SOC_DOUBLE_R("Line Output Switch", WM8904_ANALOGUE_OUT2_LEFT,
638 WM8904_ANALOGUE_OUT2_RIGHT, 8, 1, 1),
639 SOC_DOUBLE_R("Line Output ZC Switch", WM8904_ANALOGUE_OUT2_LEFT,
640 WM8904_ANALOGUE_OUT2_RIGHT, 6, 1, 0),
641
642 SOC_SINGLE("EQ Switch", WM8904_EQ1, 0, 1, 0),
643 SOC_SINGLE("DRC Switch", WM8904_DRC_0, 15, 1, 0),
644 SOC_ENUM("DRC Path", drc_path),
645 SOC_SINGLE("DAC OSRx2 Switch", WM8904_DAC_DIGITAL_1, 6, 1, 0),
646 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
647 wm8904_get_deemph, wm8904_put_deemph),
648 };
649
650 static const struct snd_kcontrol_new wm8904_snd_controls[] = {
651 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8904_DAC_DIGITAL_0, 4, 8, 15, 0,
652 sidetone_tlv),
653 };
654
655 static const struct snd_kcontrol_new wm8904_eq_controls[] = {
656 SOC_SINGLE_TLV("EQ1 Volume", WM8904_EQ2, 0, 24, 0, eq_tlv),
657 SOC_SINGLE_TLV("EQ2 Volume", WM8904_EQ3, 0, 24, 0, eq_tlv),
658 SOC_SINGLE_TLV("EQ3 Volume", WM8904_EQ4, 0, 24, 0, eq_tlv),
659 SOC_SINGLE_TLV("EQ4 Volume", WM8904_EQ5, 0, 24, 0, eq_tlv),
660 SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv),
661 };
662
663 static int cp_event(struct snd_soc_dapm_widget *w,
664 struct snd_kcontrol *kcontrol, int event)
665 {
666 BUG_ON(event != SND_SOC_DAPM_POST_PMU);
667
668 /* Maximum startup time */
669 udelay(500);
670
671 return 0;
672 }
673
674 static int sysclk_event(struct snd_soc_dapm_widget *w,
675 struct snd_kcontrol *kcontrol, int event)
676 {
677 struct snd_soc_codec *codec = w->codec;
678 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
679
680 switch (event) {
681 case SND_SOC_DAPM_PRE_PMU:
682 /* If we're using the FLL then we only start it when
683 * required; we assume that the configuration has been
684 * done previously and all we need to do is kick it
685 * off.
686 */
687 switch (wm8904->sysclk_src) {
688 case WM8904_CLK_FLL:
689 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
690 WM8904_FLL_OSC_ENA,
691 WM8904_FLL_OSC_ENA);
692
693 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
694 WM8904_FLL_ENA,
695 WM8904_FLL_ENA);
696 break;
697
698 default:
699 break;
700 }
701 break;
702
703 case SND_SOC_DAPM_POST_PMD:
704 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
705 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
706 break;
707 }
708
709 return 0;
710 }
711
712 static int out_pga_event(struct snd_soc_dapm_widget *w,
713 struct snd_kcontrol *kcontrol, int event)
714 {
715 struct snd_soc_codec *codec = w->codec;
716 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
717 int reg, val;
718 int dcs_mask;
719 int dcs_l, dcs_r;
720 int dcs_l_reg, dcs_r_reg;
721 int timeout;
722 int pwr_reg;
723
724 /* This code is shared between HP and LINEOUT; we do all our
725 * power management in stereo pairs to avoid latency issues so
726 * we reuse shift to identify which rather than strcmp() the
727 * name. */
728 reg = w->shift;
729
730 switch (reg) {
731 case WM8904_ANALOGUE_HP_0:
732 pwr_reg = WM8904_POWER_MANAGEMENT_2;
733 dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1;
734 dcs_r_reg = WM8904_DC_SERVO_8;
735 dcs_l_reg = WM8904_DC_SERVO_9;
736 dcs_l = 0;
737 dcs_r = 1;
738 break;
739 case WM8904_ANALOGUE_LINEOUT_0:
740 pwr_reg = WM8904_POWER_MANAGEMENT_3;
741 dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3;
742 dcs_r_reg = WM8904_DC_SERVO_6;
743 dcs_l_reg = WM8904_DC_SERVO_7;
744 dcs_l = 2;
745 dcs_r = 3;
746 break;
747 default:
748 BUG();
749 return -EINVAL;
750 }
751
752 switch (event) {
753 case SND_SOC_DAPM_PRE_PMU:
754 /* Power on the PGAs */
755 snd_soc_update_bits(codec, pwr_reg,
756 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
757 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA);
758
759 /* Power on the amplifier */
760 snd_soc_update_bits(codec, reg,
761 WM8904_HPL_ENA | WM8904_HPR_ENA,
762 WM8904_HPL_ENA | WM8904_HPR_ENA);
763
764
765 /* Enable the first stage */
766 snd_soc_update_bits(codec, reg,
767 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY,
768 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY);
769
770 /* Power up the DC servo */
771 snd_soc_update_bits(codec, WM8904_DC_SERVO_0,
772 dcs_mask, dcs_mask);
773
774 /* Either calibrate the DC servo or restore cached state
775 * if we have that.
776 */
777 if (wm8904->dcs_state[dcs_l] || wm8904->dcs_state[dcs_r]) {
778 dev_dbg(codec->dev, "Restoring DC servo state\n");
779
780 snd_soc_write(codec, dcs_l_reg,
781 wm8904->dcs_state[dcs_l]);
782 snd_soc_write(codec, dcs_r_reg,
783 wm8904->dcs_state[dcs_r]);
784
785 snd_soc_write(codec, WM8904_DC_SERVO_1, dcs_mask);
786
787 timeout = 20;
788 } else {
789 dev_dbg(codec->dev, "Calibrating DC servo\n");
790
791 snd_soc_write(codec, WM8904_DC_SERVO_1,
792 dcs_mask << WM8904_DCS_TRIG_STARTUP_0_SHIFT);
793
794 timeout = 500;
795 }
796
797 /* Wait for DC servo to complete */
798 dcs_mask <<= WM8904_DCS_CAL_COMPLETE_SHIFT;
799 do {
800 val = snd_soc_read(codec, WM8904_DC_SERVO_READBACK_0);
801 if ((val & dcs_mask) == dcs_mask)
802 break;
803
804 msleep(1);
805 } while (--timeout);
806
807 if ((val & dcs_mask) != dcs_mask)
808 dev_warn(codec->dev, "DC servo timed out\n");
809 else
810 dev_dbg(codec->dev, "DC servo ready\n");
811
812 /* Enable the output stage */
813 snd_soc_update_bits(codec, reg,
814 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
815 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP);
816 break;
817
818 case SND_SOC_DAPM_POST_PMU:
819 /* Unshort the output itself */
820 snd_soc_update_bits(codec, reg,
821 WM8904_HPL_RMV_SHORT |
822 WM8904_HPR_RMV_SHORT,
823 WM8904_HPL_RMV_SHORT |
824 WM8904_HPR_RMV_SHORT);
825
826 break;
827
828 case SND_SOC_DAPM_PRE_PMD:
829 /* Short the output */
830 snd_soc_update_bits(codec, reg,
831 WM8904_HPL_RMV_SHORT |
832 WM8904_HPR_RMV_SHORT, 0);
833 break;
834
835 case SND_SOC_DAPM_POST_PMD:
836 /* Cache the DC servo configuration; this will be
837 * invalidated if we change the configuration. */
838 wm8904->dcs_state[dcs_l] = snd_soc_read(codec, dcs_l_reg);
839 wm8904->dcs_state[dcs_r] = snd_soc_read(codec, dcs_r_reg);
840
841 snd_soc_update_bits(codec, WM8904_DC_SERVO_0,
842 dcs_mask, 0);
843
844 /* Disable the amplifier input and output stages */
845 snd_soc_update_bits(codec, reg,
846 WM8904_HPL_ENA | WM8904_HPR_ENA |
847 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY |
848 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
849 0);
850
851 /* PGAs too */
852 snd_soc_update_bits(codec, pwr_reg,
853 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
854 0);
855 break;
856 }
857
858 return 0;
859 }
860
861 static const char *lin_text[] = {
862 "IN1L", "IN2L", "IN3L"
863 };
864
865 static const struct soc_enum lin_enum =
866 SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 2, 3, lin_text);
867
868 static const struct snd_kcontrol_new lin_mux =
869 SOC_DAPM_ENUM("Left Capture Mux", lin_enum);
870
871 static const struct soc_enum lin_inv_enum =
872 SOC_ENUM_SINGLE(WM8904_ANALOGUE_LEFT_INPUT_1, 4, 3, lin_text);
873
874 static const struct snd_kcontrol_new lin_inv_mux =
875 SOC_DAPM_ENUM("Left Capture Inveting Mux", lin_inv_enum);
876
877 static const char *rin_text[] = {
878 "IN1R", "IN2R", "IN3R"
879 };
880
881 static const struct soc_enum rin_enum =
882 SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 2, 3, rin_text);
883
884 static const struct snd_kcontrol_new rin_mux =
885 SOC_DAPM_ENUM("Right Capture Mux", rin_enum);
886
887 static const struct soc_enum rin_inv_enum =
888 SOC_ENUM_SINGLE(WM8904_ANALOGUE_RIGHT_INPUT_1, 4, 3, rin_text);
889
890 static const struct snd_kcontrol_new rin_inv_mux =
891 SOC_DAPM_ENUM("Right Capture Inveting Mux", rin_inv_enum);
892
893 static const char *aif_text[] = {
894 "Left", "Right"
895 };
896
897 static const struct soc_enum aifoutl_enum =
898 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 7, 2, aif_text);
899
900 static const struct snd_kcontrol_new aifoutl_mux =
901 SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
902
903 static const struct soc_enum aifoutr_enum =
904 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 6, 2, aif_text);
905
906 static const struct snd_kcontrol_new aifoutr_mux =
907 SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
908
909 static const struct soc_enum aifinl_enum =
910 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 5, 2, aif_text);
911
912 static const struct snd_kcontrol_new aifinl_mux =
913 SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
914
915 static const struct soc_enum aifinr_enum =
916 SOC_ENUM_SINGLE(WM8904_AUDIO_INTERFACE_0, 4, 2, aif_text);
917
918 static const struct snd_kcontrol_new aifinr_mux =
919 SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
920
921 static const struct snd_soc_dapm_widget wm8904_core_dapm_widgets[] = {
922 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8904_CLOCK_RATES_2, 2, 0, sysclk_event,
923 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
924 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8904_CLOCK_RATES_2, 1, 0, NULL, 0),
925 SND_SOC_DAPM_SUPPLY("TOCLK", WM8904_CLOCK_RATES_2, 0, 0, NULL, 0),
926 };
927
928 static const struct snd_soc_dapm_widget wm8904_adc_dapm_widgets[] = {
929 SND_SOC_DAPM_INPUT("IN1L"),
930 SND_SOC_DAPM_INPUT("IN1R"),
931 SND_SOC_DAPM_INPUT("IN2L"),
932 SND_SOC_DAPM_INPUT("IN2R"),
933 SND_SOC_DAPM_INPUT("IN3L"),
934 SND_SOC_DAPM_INPUT("IN3R"),
935
936 SND_SOC_DAPM_SUPPLY("MICBIAS", WM8904_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
937
938 SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lin_mux),
939 SND_SOC_DAPM_MUX("Left Capture Inverting Mux", SND_SOC_NOPM, 0, 0,
940 &lin_inv_mux),
941 SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rin_mux),
942 SND_SOC_DAPM_MUX("Right Capture Inverting Mux", SND_SOC_NOPM, 0, 0,
943 &rin_inv_mux),
944
945 SND_SOC_DAPM_PGA("Left Capture PGA", WM8904_POWER_MANAGEMENT_0, 1, 0,
946 NULL, 0),
947 SND_SOC_DAPM_PGA("Right Capture PGA", WM8904_POWER_MANAGEMENT_0, 0, 0,
948 NULL, 0),
949
950 SND_SOC_DAPM_ADC("ADCL", NULL, WM8904_POWER_MANAGEMENT_6, 1, 0),
951 SND_SOC_DAPM_ADC("ADCR", NULL, WM8904_POWER_MANAGEMENT_6, 0, 0),
952
953 SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux),
954 SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux),
955
956 SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
957 SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
958 };
959
960 static const struct snd_soc_dapm_widget wm8904_dac_dapm_widgets[] = {
961 SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
962 SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
963
964 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux),
965 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux),
966
967 SND_SOC_DAPM_DAC("DACL", NULL, WM8904_POWER_MANAGEMENT_6, 3, 0),
968 SND_SOC_DAPM_DAC("DACR", NULL, WM8904_POWER_MANAGEMENT_6, 2, 0),
969
970 SND_SOC_DAPM_SUPPLY("Charge pump", WM8904_CHARGE_PUMP_0, 0, 0, cp_event,
971 SND_SOC_DAPM_POST_PMU),
972
973 SND_SOC_DAPM_PGA("HPL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
974 SND_SOC_DAPM_PGA("HPR PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
975
976 SND_SOC_DAPM_PGA("LINEL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
977 SND_SOC_DAPM_PGA("LINER PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
978
979 SND_SOC_DAPM_PGA_E("Headphone Output", SND_SOC_NOPM, WM8904_ANALOGUE_HP_0,
980 0, NULL, 0, out_pga_event,
981 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
982 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
983 SND_SOC_DAPM_PGA_E("Line Output", SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0,
984 0, NULL, 0, out_pga_event,
985 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
986 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
987
988 SND_SOC_DAPM_OUTPUT("HPOUTL"),
989 SND_SOC_DAPM_OUTPUT("HPOUTR"),
990 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
991 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
992 };
993
994 static const char *out_mux_text[] = {
995 "DAC", "Bypass"
996 };
997
998 static const struct soc_enum hpl_enum =
999 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 3, 2, out_mux_text);
1000
1001 static const struct snd_kcontrol_new hpl_mux =
1002 SOC_DAPM_ENUM("HPL Mux", hpl_enum);
1003
1004 static const struct soc_enum hpr_enum =
1005 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 2, 2, out_mux_text);
1006
1007 static const struct snd_kcontrol_new hpr_mux =
1008 SOC_DAPM_ENUM("HPR Mux", hpr_enum);
1009
1010 static const struct soc_enum linel_enum =
1011 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 1, 2, out_mux_text);
1012
1013 static const struct snd_kcontrol_new linel_mux =
1014 SOC_DAPM_ENUM("LINEL Mux", linel_enum);
1015
1016 static const struct soc_enum liner_enum =
1017 SOC_ENUM_SINGLE(WM8904_ANALOGUE_OUT12_ZC, 0, 2, out_mux_text);
1018
1019 static const struct snd_kcontrol_new liner_mux =
1020 SOC_DAPM_ENUM("LINEL Mux", liner_enum);
1021
1022 static const char *sidetone_text[] = {
1023 "None", "Left", "Right"
1024 };
1025
1026 static const struct soc_enum dacl_sidetone_enum =
1027 SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 2, 3, sidetone_text);
1028
1029 static const struct snd_kcontrol_new dacl_sidetone_mux =
1030 SOC_DAPM_ENUM("Left Sidetone Mux", dacl_sidetone_enum);
1031
1032 static const struct soc_enum dacr_sidetone_enum =
1033 SOC_ENUM_SINGLE(WM8904_DAC_DIGITAL_0, 0, 3, sidetone_text);
1034
1035 static const struct snd_kcontrol_new dacr_sidetone_mux =
1036 SOC_DAPM_ENUM("Right Sidetone Mux", dacr_sidetone_enum);
1037
1038 static const struct snd_soc_dapm_widget wm8904_dapm_widgets[] = {
1039 SND_SOC_DAPM_SUPPLY("Class G", WM8904_CLASS_W_0, 0, 1, NULL, 0),
1040 SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
1041 SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
1042
1043 SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &dacl_sidetone_mux),
1044 SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &dacr_sidetone_mux),
1045
1046 SND_SOC_DAPM_MUX("HPL Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
1047 SND_SOC_DAPM_MUX("HPR Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
1048 SND_SOC_DAPM_MUX("LINEL Mux", SND_SOC_NOPM, 0, 0, &linel_mux),
1049 SND_SOC_DAPM_MUX("LINER Mux", SND_SOC_NOPM, 0, 0, &liner_mux),
1050 };
1051
1052 static const struct snd_soc_dapm_route core_intercon[] = {
1053 { "CLK_DSP", NULL, "SYSCLK" },
1054 { "TOCLK", NULL, "SYSCLK" },
1055 };
1056
1057 static const struct snd_soc_dapm_route adc_intercon[] = {
1058 { "Left Capture Mux", "IN1L", "IN1L" },
1059 { "Left Capture Mux", "IN2L", "IN2L" },
1060 { "Left Capture Mux", "IN3L", "IN3L" },
1061
1062 { "Left Capture Inverting Mux", "IN1L", "IN1L" },
1063 { "Left Capture Inverting Mux", "IN2L", "IN2L" },
1064 { "Left Capture Inverting Mux", "IN3L", "IN3L" },
1065
1066 { "Right Capture Mux", "IN1R", "IN1R" },
1067 { "Right Capture Mux", "IN2R", "IN2R" },
1068 { "Right Capture Mux", "IN3R", "IN3R" },
1069
1070 { "Right Capture Inverting Mux", "IN1R", "IN1R" },
1071 { "Right Capture Inverting Mux", "IN2R", "IN2R" },
1072 { "Right Capture Inverting Mux", "IN3R", "IN3R" },
1073
1074 { "Left Capture PGA", NULL, "Left Capture Mux" },
1075 { "Left Capture PGA", NULL, "Left Capture Inverting Mux" },
1076
1077 { "Right Capture PGA", NULL, "Right Capture Mux" },
1078 { "Right Capture PGA", NULL, "Right Capture Inverting Mux" },
1079
1080 { "AIFOUTL", "Left", "ADCL" },
1081 { "AIFOUTL", "Right", "ADCR" },
1082 { "AIFOUTR", "Left", "ADCL" },
1083 { "AIFOUTR", "Right", "ADCR" },
1084
1085 { "ADCL", NULL, "CLK_DSP" },
1086 { "ADCL", NULL, "Left Capture PGA" },
1087
1088 { "ADCR", NULL, "CLK_DSP" },
1089 { "ADCR", NULL, "Right Capture PGA" },
1090 };
1091
1092 static const struct snd_soc_dapm_route dac_intercon[] = {
1093 { "DACL", "Right", "AIFINR" },
1094 { "DACL", "Left", "AIFINL" },
1095 { "DACL", NULL, "CLK_DSP" },
1096
1097 { "DACR", "Right", "AIFINR" },
1098 { "DACR", "Left", "AIFINL" },
1099 { "DACR", NULL, "CLK_DSP" },
1100
1101 { "Charge pump", NULL, "SYSCLK" },
1102
1103 { "Headphone Output", NULL, "HPL PGA" },
1104 { "Headphone Output", NULL, "HPR PGA" },
1105 { "Headphone Output", NULL, "Charge pump" },
1106 { "Headphone Output", NULL, "TOCLK" },
1107
1108 { "Line Output", NULL, "LINEL PGA" },
1109 { "Line Output", NULL, "LINER PGA" },
1110 { "Line Output", NULL, "Charge pump" },
1111 { "Line Output", NULL, "TOCLK" },
1112
1113 { "HPOUTL", NULL, "Headphone Output" },
1114 { "HPOUTR", NULL, "Headphone Output" },
1115
1116 { "LINEOUTL", NULL, "Line Output" },
1117 { "LINEOUTR", NULL, "Line Output" },
1118 };
1119
1120 static const struct snd_soc_dapm_route wm8904_intercon[] = {
1121 { "Left Sidetone", "Left", "ADCL" },
1122 { "Left Sidetone", "Right", "ADCR" },
1123 { "DACL", NULL, "Left Sidetone" },
1124
1125 { "Right Sidetone", "Left", "ADCL" },
1126 { "Right Sidetone", "Right", "ADCR" },
1127 { "DACR", NULL, "Right Sidetone" },
1128
1129 { "Left Bypass", NULL, "Class G" },
1130 { "Left Bypass", NULL, "Left Capture PGA" },
1131
1132 { "Right Bypass", NULL, "Class G" },
1133 { "Right Bypass", NULL, "Right Capture PGA" },
1134
1135 { "HPL Mux", "DAC", "DACL" },
1136 { "HPL Mux", "Bypass", "Left Bypass" },
1137
1138 { "HPR Mux", "DAC", "DACR" },
1139 { "HPR Mux", "Bypass", "Right Bypass" },
1140
1141 { "LINEL Mux", "DAC", "DACL" },
1142 { "LINEL Mux", "Bypass", "Left Bypass" },
1143
1144 { "LINER Mux", "DAC", "DACR" },
1145 { "LINER Mux", "Bypass", "Right Bypass" },
1146
1147 { "HPL PGA", NULL, "HPL Mux" },
1148 { "HPR PGA", NULL, "HPR Mux" },
1149
1150 { "LINEL PGA", NULL, "LINEL Mux" },
1151 { "LINER PGA", NULL, "LINER Mux" },
1152 };
1153
1154 static const struct snd_soc_dapm_route wm8912_intercon[] = {
1155 { "HPL PGA", NULL, "DACL" },
1156 { "HPR PGA", NULL, "DACR" },
1157
1158 { "LINEL PGA", NULL, "DACL" },
1159 { "LINER PGA", NULL, "DACR" },
1160 };
1161
1162 static int wm8904_add_widgets(struct snd_soc_codec *codec)
1163 {
1164 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1165 struct snd_soc_dapm_context *dapm = &codec->dapm;
1166
1167 snd_soc_dapm_new_controls(dapm, wm8904_core_dapm_widgets,
1168 ARRAY_SIZE(wm8904_core_dapm_widgets));
1169 snd_soc_dapm_add_routes(dapm, core_intercon,
1170 ARRAY_SIZE(core_intercon));
1171
1172 switch (wm8904->devtype) {
1173 case WM8904:
1174 snd_soc_add_codec_controls(codec, wm8904_adc_snd_controls,
1175 ARRAY_SIZE(wm8904_adc_snd_controls));
1176 snd_soc_add_codec_controls(codec, wm8904_dac_snd_controls,
1177 ARRAY_SIZE(wm8904_dac_snd_controls));
1178 snd_soc_add_codec_controls(codec, wm8904_snd_controls,
1179 ARRAY_SIZE(wm8904_snd_controls));
1180
1181 snd_soc_dapm_new_controls(dapm, wm8904_adc_dapm_widgets,
1182 ARRAY_SIZE(wm8904_adc_dapm_widgets));
1183 snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
1184 ARRAY_SIZE(wm8904_dac_dapm_widgets));
1185 snd_soc_dapm_new_controls(dapm, wm8904_dapm_widgets,
1186 ARRAY_SIZE(wm8904_dapm_widgets));
1187
1188 snd_soc_dapm_add_routes(dapm, core_intercon,
1189 ARRAY_SIZE(core_intercon));
1190 snd_soc_dapm_add_routes(dapm, adc_intercon,
1191 ARRAY_SIZE(adc_intercon));
1192 snd_soc_dapm_add_routes(dapm, dac_intercon,
1193 ARRAY_SIZE(dac_intercon));
1194 snd_soc_dapm_add_routes(dapm, wm8904_intercon,
1195 ARRAY_SIZE(wm8904_intercon));
1196 break;
1197
1198 case WM8912:
1199 snd_soc_add_codec_controls(codec, wm8904_dac_snd_controls,
1200 ARRAY_SIZE(wm8904_dac_snd_controls));
1201
1202 snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
1203 ARRAY_SIZE(wm8904_dac_dapm_widgets));
1204
1205 snd_soc_dapm_add_routes(dapm, dac_intercon,
1206 ARRAY_SIZE(dac_intercon));
1207 snd_soc_dapm_add_routes(dapm, wm8912_intercon,
1208 ARRAY_SIZE(wm8912_intercon));
1209 break;
1210 }
1211
1212 snd_soc_dapm_new_widgets(dapm);
1213 return 0;
1214 }
1215
1216 static struct {
1217 int ratio;
1218 unsigned int clk_sys_rate;
1219 } clk_sys_rates[] = {
1220 { 64, 0 },
1221 { 128, 1 },
1222 { 192, 2 },
1223 { 256, 3 },
1224 { 384, 4 },
1225 { 512, 5 },
1226 { 786, 6 },
1227 { 1024, 7 },
1228 { 1408, 8 },
1229 { 1536, 9 },
1230 };
1231
1232 static struct {
1233 int rate;
1234 int sample_rate;
1235 } sample_rates[] = {
1236 { 8000, 0 },
1237 { 11025, 1 },
1238 { 12000, 1 },
1239 { 16000, 2 },
1240 { 22050, 3 },
1241 { 24000, 3 },
1242 { 32000, 4 },
1243 { 44100, 5 },
1244 { 48000, 5 },
1245 };
1246
1247 static struct {
1248 int div; /* *10 due to .5s */
1249 int bclk_div;
1250 } bclk_divs[] = {
1251 { 10, 0 },
1252 { 15, 1 },
1253 { 20, 2 },
1254 { 30, 3 },
1255 { 40, 4 },
1256 { 50, 5 },
1257 { 55, 6 },
1258 { 60, 7 },
1259 { 80, 8 },
1260 { 100, 9 },
1261 { 110, 10 },
1262 { 120, 11 },
1263 { 160, 12 },
1264 { 200, 13 },
1265 { 220, 14 },
1266 { 240, 16 },
1267 { 200, 17 },
1268 { 320, 18 },
1269 { 440, 19 },
1270 { 480, 20 },
1271 };
1272
1273
1274 static int wm8904_hw_params(struct snd_pcm_substream *substream,
1275 struct snd_pcm_hw_params *params,
1276 struct snd_soc_dai *dai)
1277 {
1278 struct snd_soc_codec *codec = dai->codec;
1279 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1280 int ret, i, best, best_val, cur_val;
1281 unsigned int aif1 = 0;
1282 unsigned int aif2 = 0;
1283 unsigned int aif3 = 0;
1284 unsigned int clock1 = 0;
1285 unsigned int dac_digital1 = 0;
1286
1287 /* What BCLK do we need? */
1288 wm8904->fs = params_rate(params);
1289 if (wm8904->tdm_slots) {
1290 dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
1291 wm8904->tdm_slots, wm8904->tdm_width);
1292 wm8904->bclk = snd_soc_calc_bclk(wm8904->fs,
1293 wm8904->tdm_width, 2,
1294 wm8904->tdm_slots);
1295 } else {
1296 wm8904->bclk = snd_soc_params_to_bclk(params);
1297 }
1298
1299 switch (params_format(params)) {
1300 case SNDRV_PCM_FORMAT_S16_LE:
1301 break;
1302 case SNDRV_PCM_FORMAT_S20_3LE:
1303 aif1 |= 0x40;
1304 break;
1305 case SNDRV_PCM_FORMAT_S24_LE:
1306 aif1 |= 0x80;
1307 break;
1308 case SNDRV_PCM_FORMAT_S32_LE:
1309 aif1 |= 0xc0;
1310 break;
1311 default:
1312 return -EINVAL;
1313 }
1314
1315
1316 dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8904->bclk);
1317
1318 ret = wm8904_configure_clocking(codec);
1319 if (ret != 0)
1320 return ret;
1321
1322 /* Select nearest CLK_SYS_RATE */
1323 best = 0;
1324 best_val = abs((wm8904->sysclk_rate / clk_sys_rates[0].ratio)
1325 - wm8904->fs);
1326 for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
1327 cur_val = abs((wm8904->sysclk_rate /
1328 clk_sys_rates[i].ratio) - wm8904->fs);
1329 if (cur_val < best_val) {
1330 best = i;
1331 best_val = cur_val;
1332 }
1333 }
1334 dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
1335 clk_sys_rates[best].ratio);
1336 clock1 |= (clk_sys_rates[best].clk_sys_rate
1337 << WM8904_CLK_SYS_RATE_SHIFT);
1338
1339 /* SAMPLE_RATE */
1340 best = 0;
1341 best_val = abs(wm8904->fs - sample_rates[0].rate);
1342 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1343 /* Closest match */
1344 cur_val = abs(wm8904->fs - sample_rates[i].rate);
1345 if (cur_val < best_val) {
1346 best = i;
1347 best_val = cur_val;
1348 }
1349 }
1350 dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
1351 sample_rates[best].rate);
1352 clock1 |= (sample_rates[best].sample_rate
1353 << WM8904_SAMPLE_RATE_SHIFT);
1354
1355 /* Enable sloping stopband filter for low sample rates */
1356 if (wm8904->fs <= 24000)
1357 dac_digital1 |= WM8904_DAC_SB_FILT;
1358
1359 /* BCLK_DIV */
1360 best = 0;
1361 best_val = INT_MAX;
1362 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1363 cur_val = ((wm8904->sysclk_rate * 10) / bclk_divs[i].div)
1364 - wm8904->bclk;
1365 if (cur_val < 0) /* Table is sorted */
1366 break;
1367 if (cur_val < best_val) {
1368 best = i;
1369 best_val = cur_val;
1370 }
1371 }
1372 wm8904->bclk = (wm8904->sysclk_rate * 10) / bclk_divs[best].div;
1373 dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
1374 bclk_divs[best].div, wm8904->bclk);
1375 aif2 |= bclk_divs[best].bclk_div;
1376
1377 /* LRCLK is a simple fraction of BCLK */
1378 dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8904->bclk / wm8904->fs);
1379 aif3 |= wm8904->bclk / wm8904->fs;
1380
1381 /* Apply the settings */
1382 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1,
1383 WM8904_DAC_SB_FILT, dac_digital1);
1384 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1385 WM8904_AIF_WL_MASK, aif1);
1386 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_2,
1387 WM8904_BCLK_DIV_MASK, aif2);
1388 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3,
1389 WM8904_LRCLK_RATE_MASK, aif3);
1390 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_1,
1391 WM8904_SAMPLE_RATE_MASK |
1392 WM8904_CLK_SYS_RATE_MASK, clock1);
1393
1394 /* Update filters for the new settings */
1395 wm8904_set_retune_mobile(codec);
1396 wm8904_set_deemph(codec);
1397
1398 return 0;
1399 }
1400
1401
1402 static int wm8904_set_sysclk(struct snd_soc_dai *dai, int clk_id,
1403 unsigned int freq, int dir)
1404 {
1405 struct snd_soc_codec *codec = dai->codec;
1406 struct wm8904_priv *priv = snd_soc_codec_get_drvdata(codec);
1407
1408 switch (clk_id) {
1409 case WM8904_CLK_MCLK:
1410 priv->sysclk_src = clk_id;
1411 priv->mclk_rate = freq;
1412 break;
1413
1414 case WM8904_CLK_FLL:
1415 priv->sysclk_src = clk_id;
1416 break;
1417
1418 default:
1419 return -EINVAL;
1420 }
1421
1422 dev_dbg(dai->dev, "Clock source is %d at %uHz\n", clk_id, freq);
1423
1424 wm8904_configure_clocking(codec);
1425
1426 return 0;
1427 }
1428
1429 static int wm8904_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1430 {
1431 struct snd_soc_codec *codec = dai->codec;
1432 unsigned int aif1 = 0;
1433 unsigned int aif3 = 0;
1434
1435 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1436 case SND_SOC_DAIFMT_CBS_CFS:
1437 break;
1438 case SND_SOC_DAIFMT_CBS_CFM:
1439 aif3 |= WM8904_LRCLK_DIR;
1440 break;
1441 case SND_SOC_DAIFMT_CBM_CFS:
1442 aif1 |= WM8904_BCLK_DIR;
1443 break;
1444 case SND_SOC_DAIFMT_CBM_CFM:
1445 aif1 |= WM8904_BCLK_DIR;
1446 aif3 |= WM8904_LRCLK_DIR;
1447 break;
1448 default:
1449 return -EINVAL;
1450 }
1451
1452 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1453 case SND_SOC_DAIFMT_DSP_B:
1454 aif1 |= WM8904_AIF_LRCLK_INV;
1455 case SND_SOC_DAIFMT_DSP_A:
1456 aif1 |= 0x3;
1457 break;
1458 case SND_SOC_DAIFMT_I2S:
1459 aif1 |= 0x2;
1460 break;
1461 case SND_SOC_DAIFMT_RIGHT_J:
1462 break;
1463 case SND_SOC_DAIFMT_LEFT_J:
1464 aif1 |= 0x1;
1465 break;
1466 default:
1467 return -EINVAL;
1468 }
1469
1470 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1471 case SND_SOC_DAIFMT_DSP_A:
1472 case SND_SOC_DAIFMT_DSP_B:
1473 /* frame inversion not valid for DSP modes */
1474 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1475 case SND_SOC_DAIFMT_NB_NF:
1476 break;
1477 case SND_SOC_DAIFMT_IB_NF:
1478 aif1 |= WM8904_AIF_BCLK_INV;
1479 break;
1480 default:
1481 return -EINVAL;
1482 }
1483 break;
1484
1485 case SND_SOC_DAIFMT_I2S:
1486 case SND_SOC_DAIFMT_RIGHT_J:
1487 case SND_SOC_DAIFMT_LEFT_J:
1488 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1489 case SND_SOC_DAIFMT_NB_NF:
1490 break;
1491 case SND_SOC_DAIFMT_IB_IF:
1492 aif1 |= WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV;
1493 break;
1494 case SND_SOC_DAIFMT_IB_NF:
1495 aif1 |= WM8904_AIF_BCLK_INV;
1496 break;
1497 case SND_SOC_DAIFMT_NB_IF:
1498 aif1 |= WM8904_AIF_LRCLK_INV;
1499 break;
1500 default:
1501 return -EINVAL;
1502 }
1503 break;
1504 default:
1505 return -EINVAL;
1506 }
1507
1508 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1509 WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV |
1510 WM8904_AIF_FMT_MASK | WM8904_BCLK_DIR, aif1);
1511 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3,
1512 WM8904_LRCLK_DIR, aif3);
1513
1514 return 0;
1515 }
1516
1517
1518 static int wm8904_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
1519 unsigned int rx_mask, int slots, int slot_width)
1520 {
1521 struct snd_soc_codec *codec = dai->codec;
1522 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1523 int aif1 = 0;
1524
1525 /* Don't need to validate anything if we're turning off TDM */
1526 if (slots == 0)
1527 goto out;
1528
1529 /* Note that we allow configurations we can't handle ourselves -
1530 * for example, we can generate clocks for slots 2 and up even if
1531 * we can't use those slots ourselves.
1532 */
1533 aif1 |= WM8904_AIFADC_TDM | WM8904_AIFDAC_TDM;
1534
1535 switch (rx_mask) {
1536 case 3:
1537 break;
1538 case 0xc:
1539 aif1 |= WM8904_AIFADC_TDM_CHAN;
1540 break;
1541 default:
1542 return -EINVAL;
1543 }
1544
1545
1546 switch (tx_mask) {
1547 case 3:
1548 break;
1549 case 0xc:
1550 aif1 |= WM8904_AIFDAC_TDM_CHAN;
1551 break;
1552 default:
1553 return -EINVAL;
1554 }
1555
1556 out:
1557 wm8904->tdm_width = slot_width;
1558 wm8904->tdm_slots = slots / 2;
1559
1560 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1561 WM8904_AIFADC_TDM | WM8904_AIFADC_TDM_CHAN |
1562 WM8904_AIFDAC_TDM | WM8904_AIFDAC_TDM_CHAN, aif1);
1563
1564 return 0;
1565 }
1566
1567 struct _fll_div {
1568 u16 fll_fratio;
1569 u16 fll_outdiv;
1570 u16 fll_clk_ref_div;
1571 u16 n;
1572 u16 k;
1573 };
1574
1575 /* The size in bits of the FLL divide multiplied by 10
1576 * to allow rounding later */
1577 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1578
1579 static struct {
1580 unsigned int min;
1581 unsigned int max;
1582 u16 fll_fratio;
1583 int ratio;
1584 } fll_fratios[] = {
1585 { 0, 64000, 4, 16 },
1586 { 64000, 128000, 3, 8 },
1587 { 128000, 256000, 2, 4 },
1588 { 256000, 1000000, 1, 2 },
1589 { 1000000, 13500000, 0, 1 },
1590 };
1591
1592 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1593 unsigned int Fout)
1594 {
1595 u64 Kpart;
1596 unsigned int K, Ndiv, Nmod, target;
1597 unsigned int div;
1598 int i;
1599
1600 /* Fref must be <=13.5MHz */
1601 div = 1;
1602 fll_div->fll_clk_ref_div = 0;
1603 while ((Fref / div) > 13500000) {
1604 div *= 2;
1605 fll_div->fll_clk_ref_div++;
1606
1607 if (div > 8) {
1608 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1609 Fref);
1610 return -EINVAL;
1611 }
1612 }
1613
1614 pr_debug("Fref=%u Fout=%u\n", Fref, Fout);
1615
1616 /* Apply the division for our remaining calculations */
1617 Fref /= div;
1618
1619 /* Fvco should be 90-100MHz; don't check the upper bound */
1620 div = 4;
1621 while (Fout * div < 90000000) {
1622 div++;
1623 if (div > 64) {
1624 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1625 Fout);
1626 return -EINVAL;
1627 }
1628 }
1629 target = Fout * div;
1630 fll_div->fll_outdiv = div - 1;
1631
1632 pr_debug("Fvco=%dHz\n", target);
1633
1634 /* Find an appropriate FLL_FRATIO and factor it out of the target */
1635 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1636 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1637 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1638 target /= fll_fratios[i].ratio;
1639 break;
1640 }
1641 }
1642 if (i == ARRAY_SIZE(fll_fratios)) {
1643 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1644 return -EINVAL;
1645 }
1646
1647 /* Now, calculate N.K */
1648 Ndiv = target / Fref;
1649
1650 fll_div->n = Ndiv;
1651 Nmod = target % Fref;
1652 pr_debug("Nmod=%d\n", Nmod);
1653
1654 /* Calculate fractional part - scale up so we can round. */
1655 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1656
1657 do_div(Kpart, Fref);
1658
1659 K = Kpart & 0xFFFFFFFF;
1660
1661 if ((K % 10) >= 5)
1662 K += 5;
1663
1664 /* Move down to proper range now rounding is done */
1665 fll_div->k = K / 10;
1666
1667 pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n",
1668 fll_div->n, fll_div->k,
1669 fll_div->fll_fratio, fll_div->fll_outdiv,
1670 fll_div->fll_clk_ref_div);
1671
1672 return 0;
1673 }
1674
1675 static int wm8904_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
1676 unsigned int Fref, unsigned int Fout)
1677 {
1678 struct snd_soc_codec *codec = dai->codec;
1679 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1680 struct _fll_div fll_div;
1681 int ret, val;
1682 int clock2, fll1;
1683
1684 /* Any change? */
1685 if (source == wm8904->fll_src && Fref == wm8904->fll_fref &&
1686 Fout == wm8904->fll_fout)
1687 return 0;
1688
1689 clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2);
1690
1691 if (Fout == 0) {
1692 dev_dbg(codec->dev, "FLL disabled\n");
1693
1694 wm8904->fll_fref = 0;
1695 wm8904->fll_fout = 0;
1696
1697 /* Gate SYSCLK to avoid glitches */
1698 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1699 WM8904_CLK_SYS_ENA, 0);
1700
1701 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1702 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
1703
1704 goto out;
1705 }
1706
1707 /* Validate the FLL ID */
1708 switch (source) {
1709 case WM8904_FLL_MCLK:
1710 case WM8904_FLL_LRCLK:
1711 case WM8904_FLL_BCLK:
1712 ret = fll_factors(&fll_div, Fref, Fout);
1713 if (ret != 0)
1714 return ret;
1715 break;
1716
1717 case WM8904_FLL_FREE_RUNNING:
1718 dev_dbg(codec->dev, "Using free running FLL\n");
1719 /* Force 12MHz and output/4 for now */
1720 Fout = 12000000;
1721 Fref = 12000000;
1722
1723 memset(&fll_div, 0, sizeof(fll_div));
1724 fll_div.fll_outdiv = 3;
1725 break;
1726
1727 default:
1728 dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
1729 return -EINVAL;
1730 }
1731
1732 /* Save current state then disable the FLL and SYSCLK to avoid
1733 * misclocking */
1734 fll1 = snd_soc_read(codec, WM8904_FLL_CONTROL_1);
1735 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1736 WM8904_CLK_SYS_ENA, 0);
1737 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1738 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
1739
1740 /* Unlock forced oscilator control to switch it on/off */
1741 snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1,
1742 WM8904_USER_KEY, WM8904_USER_KEY);
1743
1744 if (fll_id == WM8904_FLL_FREE_RUNNING) {
1745 val = WM8904_FLL_FRC_NCO;
1746 } else {
1747 val = 0;
1748 }
1749
1750 snd_soc_update_bits(codec, WM8904_FLL_NCO_TEST_1, WM8904_FLL_FRC_NCO,
1751 val);
1752 snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1,
1753 WM8904_USER_KEY, 0);
1754
1755 switch (fll_id) {
1756 case WM8904_FLL_MCLK:
1757 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1758 WM8904_FLL_CLK_REF_SRC_MASK, 0);
1759 break;
1760
1761 case WM8904_FLL_LRCLK:
1762 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1763 WM8904_FLL_CLK_REF_SRC_MASK, 1);
1764 break;
1765
1766 case WM8904_FLL_BCLK:
1767 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1768 WM8904_FLL_CLK_REF_SRC_MASK, 2);
1769 break;
1770 }
1771
1772 if (fll_div.k)
1773 val = WM8904_FLL_FRACN_ENA;
1774 else
1775 val = 0;
1776 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1777 WM8904_FLL_FRACN_ENA, val);
1778
1779 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_2,
1780 WM8904_FLL_OUTDIV_MASK | WM8904_FLL_FRATIO_MASK,
1781 (fll_div.fll_outdiv << WM8904_FLL_OUTDIV_SHIFT) |
1782 (fll_div.fll_fratio << WM8904_FLL_FRATIO_SHIFT));
1783
1784 snd_soc_write(codec, WM8904_FLL_CONTROL_3, fll_div.k);
1785
1786 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_4, WM8904_FLL_N_MASK,
1787 fll_div.n << WM8904_FLL_N_SHIFT);
1788
1789 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1790 WM8904_FLL_CLK_REF_DIV_MASK,
1791 fll_div.fll_clk_ref_div
1792 << WM8904_FLL_CLK_REF_DIV_SHIFT);
1793
1794 dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
1795
1796 wm8904->fll_fref = Fref;
1797 wm8904->fll_fout = Fout;
1798 wm8904->fll_src = source;
1799
1800 /* Enable the FLL if it was previously active */
1801 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1802 WM8904_FLL_OSC_ENA, fll1);
1803 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1804 WM8904_FLL_ENA, fll1);
1805
1806 out:
1807 /* Reenable SYSCLK if it was previously active */
1808 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1809 WM8904_CLK_SYS_ENA, clock2);
1810
1811 return 0;
1812 }
1813
1814 static int wm8904_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1815 {
1816 struct snd_soc_codec *codec = codec_dai->codec;
1817 int val;
1818
1819 if (mute)
1820 val = WM8904_DAC_MUTE;
1821 else
1822 val = 0;
1823
1824 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DAC_MUTE, val);
1825
1826 return 0;
1827 }
1828
1829 static int wm8904_set_bias_level(struct snd_soc_codec *codec,
1830 enum snd_soc_bias_level level)
1831 {
1832 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1833 int ret;
1834
1835 switch (level) {
1836 case SND_SOC_BIAS_ON:
1837 break;
1838
1839 case SND_SOC_BIAS_PREPARE:
1840 /* VMID resistance 2*50k */
1841 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1842 WM8904_VMID_RES_MASK,
1843 0x1 << WM8904_VMID_RES_SHIFT);
1844
1845 /* Normal bias current */
1846 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1847 WM8904_ISEL_MASK, 2 << WM8904_ISEL_SHIFT);
1848 break;
1849
1850 case SND_SOC_BIAS_STANDBY:
1851 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1852 ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
1853 wm8904->supplies);
1854 if (ret != 0) {
1855 dev_err(codec->dev,
1856 "Failed to enable supplies: %d\n",
1857 ret);
1858 return ret;
1859 }
1860
1861 regcache_cache_only(wm8904->regmap, false);
1862 regcache_sync(wm8904->regmap);
1863
1864 /* Enable bias */
1865 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1866 WM8904_BIAS_ENA, WM8904_BIAS_ENA);
1867
1868 /* Enable VMID, VMID buffering, 2*5k resistance */
1869 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1870 WM8904_VMID_ENA |
1871 WM8904_VMID_RES_MASK,
1872 WM8904_VMID_ENA |
1873 0x3 << WM8904_VMID_RES_SHIFT);
1874
1875 /* Let VMID ramp */
1876 msleep(1);
1877 }
1878
1879 /* Maintain VMID with 2*250k */
1880 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1881 WM8904_VMID_RES_MASK,
1882 0x2 << WM8904_VMID_RES_SHIFT);
1883
1884 /* Bias current *0.5 */
1885 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1886 WM8904_ISEL_MASK, 0);
1887 break;
1888
1889 case SND_SOC_BIAS_OFF:
1890 /* Turn off VMID */
1891 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1892 WM8904_VMID_RES_MASK | WM8904_VMID_ENA, 0);
1893
1894 /* Stop bias generation */
1895 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1896 WM8904_BIAS_ENA, 0);
1897
1898 regcache_cache_only(wm8904->regmap, true);
1899 regcache_mark_dirty(wm8904->regmap);
1900
1901 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
1902 wm8904->supplies);
1903 break;
1904 }
1905 codec->dapm.bias_level = level;
1906 return 0;
1907 }
1908
1909 #define WM8904_RATES SNDRV_PCM_RATE_8000_96000
1910
1911 #define WM8904_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1912 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1913
1914 static const struct snd_soc_dai_ops wm8904_dai_ops = {
1915 .set_sysclk = wm8904_set_sysclk,
1916 .set_fmt = wm8904_set_fmt,
1917 .set_tdm_slot = wm8904_set_tdm_slot,
1918 .set_pll = wm8904_set_fll,
1919 .hw_params = wm8904_hw_params,
1920 .digital_mute = wm8904_digital_mute,
1921 };
1922
1923 static struct snd_soc_dai_driver wm8904_dai = {
1924 .name = "wm8904-hifi",
1925 .playback = {
1926 .stream_name = "Playback",
1927 .channels_min = 2,
1928 .channels_max = 2,
1929 .rates = WM8904_RATES,
1930 .formats = WM8904_FORMATS,
1931 },
1932 .capture = {
1933 .stream_name = "Capture",
1934 .channels_min = 2,
1935 .channels_max = 2,
1936 .rates = WM8904_RATES,
1937 .formats = WM8904_FORMATS,
1938 },
1939 .ops = &wm8904_dai_ops,
1940 .symmetric_rates = 1,
1941 };
1942
1943 static void wm8904_handle_retune_mobile_pdata(struct snd_soc_codec *codec)
1944 {
1945 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1946 struct wm8904_pdata *pdata = wm8904->pdata;
1947 struct snd_kcontrol_new control =
1948 SOC_ENUM_EXT("EQ Mode",
1949 wm8904->retune_mobile_enum,
1950 wm8904_get_retune_mobile_enum,
1951 wm8904_put_retune_mobile_enum);
1952 int ret, i, j;
1953 const char **t;
1954
1955 /* We need an array of texts for the enum API but the number
1956 * of texts is likely to be less than the number of
1957 * configurations due to the sample rate dependency of the
1958 * configurations. */
1959 wm8904->num_retune_mobile_texts = 0;
1960 wm8904->retune_mobile_texts = NULL;
1961 for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
1962 for (j = 0; j < wm8904->num_retune_mobile_texts; j++) {
1963 if (strcmp(pdata->retune_mobile_cfgs[i].name,
1964 wm8904->retune_mobile_texts[j]) == 0)
1965 break;
1966 }
1967
1968 if (j != wm8904->num_retune_mobile_texts)
1969 continue;
1970
1971 /* Expand the array... */
1972 t = krealloc(wm8904->retune_mobile_texts,
1973 sizeof(char *) *
1974 (wm8904->num_retune_mobile_texts + 1),
1975 GFP_KERNEL);
1976 if (t == NULL)
1977 continue;
1978
1979 /* ...store the new entry... */
1980 t[wm8904->num_retune_mobile_texts] =
1981 pdata->retune_mobile_cfgs[i].name;
1982
1983 /* ...and remember the new version. */
1984 wm8904->num_retune_mobile_texts++;
1985 wm8904->retune_mobile_texts = t;
1986 }
1987
1988 dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n",
1989 wm8904->num_retune_mobile_texts);
1990
1991 wm8904->retune_mobile_enum.max = wm8904->num_retune_mobile_texts;
1992 wm8904->retune_mobile_enum.texts = wm8904->retune_mobile_texts;
1993
1994 ret = snd_soc_add_codec_controls(codec, &control, 1);
1995 if (ret != 0)
1996 dev_err(codec->dev,
1997 "Failed to add ReTune Mobile control: %d\n", ret);
1998 }
1999
2000 static void wm8904_handle_pdata(struct snd_soc_codec *codec)
2001 {
2002 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2003 struct wm8904_pdata *pdata = wm8904->pdata;
2004 int ret, i;
2005
2006 if (!pdata) {
2007 snd_soc_add_codec_controls(codec, wm8904_eq_controls,
2008 ARRAY_SIZE(wm8904_eq_controls));
2009 return;
2010 }
2011
2012 dev_dbg(codec->dev, "%d DRC configurations\n", pdata->num_drc_cfgs);
2013
2014 if (pdata->num_drc_cfgs) {
2015 struct snd_kcontrol_new control =
2016 SOC_ENUM_EXT("DRC Mode", wm8904->drc_enum,
2017 wm8904_get_drc_enum, wm8904_put_drc_enum);
2018
2019 /* We need an array of texts for the enum API */
2020 wm8904->drc_texts = kmalloc(sizeof(char *)
2021 * pdata->num_drc_cfgs, GFP_KERNEL);
2022 if (!wm8904->drc_texts) {
2023 dev_err(codec->dev,
2024 "Failed to allocate %d DRC config texts\n",
2025 pdata->num_drc_cfgs);
2026 return;
2027 }
2028
2029 for (i = 0; i < pdata->num_drc_cfgs; i++)
2030 wm8904->drc_texts[i] = pdata->drc_cfgs[i].name;
2031
2032 wm8904->drc_enum.max = pdata->num_drc_cfgs;
2033 wm8904->drc_enum.texts = wm8904->drc_texts;
2034
2035 ret = snd_soc_add_codec_controls(codec, &control, 1);
2036 if (ret != 0)
2037 dev_err(codec->dev,
2038 "Failed to add DRC mode control: %d\n", ret);
2039
2040 wm8904_set_drc(codec);
2041 }
2042
2043 dev_dbg(codec->dev, "%d ReTune Mobile configurations\n",
2044 pdata->num_retune_mobile_cfgs);
2045
2046 if (pdata->num_retune_mobile_cfgs)
2047 wm8904_handle_retune_mobile_pdata(codec);
2048 else
2049 snd_soc_add_codec_controls(codec, wm8904_eq_controls,
2050 ARRAY_SIZE(wm8904_eq_controls));
2051 }
2052
2053
2054 static int wm8904_probe(struct snd_soc_codec *codec)
2055 {
2056 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2057 int ret;
2058
2059 codec->control_data = wm8904->regmap;
2060
2061 switch (wm8904->devtype) {
2062 case WM8904:
2063 break;
2064 case WM8912:
2065 memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture));
2066 break;
2067 default:
2068 dev_err(codec->dev, "Unknown device type %d\n",
2069 wm8904->devtype);
2070 return -EINVAL;
2071 }
2072
2073 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
2074 if (ret != 0) {
2075 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
2076 return ret;
2077 }
2078
2079 wm8904_handle_pdata(codec);
2080
2081 wm8904_add_widgets(codec);
2082
2083 return 0;
2084 }
2085
2086 static int wm8904_remove(struct snd_soc_codec *codec)
2087 {
2088 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2089
2090 kfree(wm8904->retune_mobile_texts);
2091 kfree(wm8904->drc_texts);
2092
2093 return 0;
2094 }
2095
2096 static struct snd_soc_codec_driver soc_codec_dev_wm8904 = {
2097 .probe = wm8904_probe,
2098 .remove = wm8904_remove,
2099 .set_bias_level = wm8904_set_bias_level,
2100 .idle_bias_off = true,
2101 };
2102
2103 static const struct regmap_config wm8904_regmap = {
2104 .reg_bits = 8,
2105 .val_bits = 16,
2106
2107 .max_register = WM8904_MAX_REGISTER,
2108 .volatile_reg = wm8904_volatile_register,
2109 .readable_reg = wm8904_readable_register,
2110
2111 .cache_type = REGCACHE_RBTREE,
2112 .reg_defaults = wm8904_reg_defaults,
2113 .num_reg_defaults = ARRAY_SIZE(wm8904_reg_defaults),
2114 };
2115
2116 static __devinit int wm8904_i2c_probe(struct i2c_client *i2c,
2117 const struct i2c_device_id *id)
2118 {
2119 struct wm8904_priv *wm8904;
2120 unsigned int val;
2121 int ret, i;
2122
2123 wm8904 = devm_kzalloc(&i2c->dev, sizeof(struct wm8904_priv),
2124 GFP_KERNEL);
2125 if (wm8904 == NULL)
2126 return -ENOMEM;
2127
2128 wm8904->regmap = devm_regmap_init_i2c(i2c, &wm8904_regmap);
2129 if (IS_ERR(wm8904->regmap)) {
2130 ret = PTR_ERR(wm8904->regmap);
2131 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
2132 ret);
2133 return ret;
2134 }
2135
2136 wm8904->devtype = id->driver_data;
2137 i2c_set_clientdata(i2c, wm8904);
2138 wm8904->pdata = i2c->dev.platform_data;
2139
2140 for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++)
2141 wm8904->supplies[i].supply = wm8904_supply_names[i];
2142
2143 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8904->supplies),
2144 wm8904->supplies);
2145 if (ret != 0) {
2146 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
2147 return ret;
2148 }
2149
2150 ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
2151 wm8904->supplies);
2152 if (ret != 0) {
2153 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
2154 return ret;
2155 }
2156
2157 ret = regmap_read(wm8904->regmap, WM8904_SW_RESET_AND_ID, &val);
2158 if (ret < 0) {
2159 dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret);
2160 goto err_enable;
2161 }
2162 if (val != 0x8904) {
2163 dev_err(&i2c->dev, "Device is not a WM8904, ID is %x\n", val);
2164 ret = -EINVAL;
2165 goto err_enable;
2166 }
2167
2168 ret = regmap_read(wm8904->regmap, WM8904_REVISION, &val);
2169 if (ret < 0) {
2170 dev_err(&i2c->dev, "Failed to read device revision: %d\n",
2171 ret);
2172 goto err_enable;
2173 }
2174 dev_info(&i2c->dev, "revision %c\n", val + 'A');
2175
2176 ret = regmap_write(wm8904->regmap, WM8904_SW_RESET_AND_ID, 0);
2177 if (ret < 0) {
2178 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
2179 goto err_enable;
2180 }
2181
2182 /* Change some default settings - latch VU and enable ZC */
2183 regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_LEFT,
2184 WM8904_ADC_VU, WM8904_ADC_VU);
2185 regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_RIGHT,
2186 WM8904_ADC_VU, WM8904_ADC_VU);
2187 regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_LEFT,
2188 WM8904_DAC_VU, WM8904_DAC_VU);
2189 regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_RIGHT,
2190 WM8904_DAC_VU, WM8904_DAC_VU);
2191 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_LEFT,
2192 WM8904_HPOUT_VU | WM8904_HPOUTLZC,
2193 WM8904_HPOUT_VU | WM8904_HPOUTLZC);
2194 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_RIGHT,
2195 WM8904_HPOUT_VU | WM8904_HPOUTRZC,
2196 WM8904_HPOUT_VU | WM8904_HPOUTRZC);
2197 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_LEFT,
2198 WM8904_LINEOUT_VU | WM8904_LINEOUTLZC,
2199 WM8904_LINEOUT_VU | WM8904_LINEOUTLZC);
2200 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_RIGHT,
2201 WM8904_LINEOUT_VU | WM8904_LINEOUTRZC,
2202 WM8904_LINEOUT_VU | WM8904_LINEOUTRZC);
2203 regmap_update_bits(wm8904->regmap, WM8904_CLOCK_RATES_0,
2204 WM8904_SR_MODE, 0);
2205
2206 /* Apply configuration from the platform data. */
2207 if (wm8904->pdata) {
2208 for (i = 0; i < WM8904_GPIO_REGS; i++) {
2209 if (!wm8904->pdata->gpio_cfg[i])
2210 continue;
2211
2212 regmap_update_bits(wm8904->regmap,
2213 WM8904_GPIO_CONTROL_1 + i,
2214 0xffff,
2215 wm8904->pdata->gpio_cfg[i]);
2216 }
2217
2218 /* Zero is the default value for these anyway */
2219 for (i = 0; i < WM8904_MIC_REGS; i++)
2220 regmap_update_bits(wm8904->regmap,
2221 WM8904_MIC_BIAS_CONTROL_0 + i,
2222 0xffff,
2223 wm8904->pdata->mic_cfg[i]);
2224 }
2225
2226 /* Set Class W by default - this will be managed by the Class
2227 * G widget at runtime where bypass paths are available.
2228 */
2229 regmap_update_bits(wm8904->regmap, WM8904_CLASS_W_0,
2230 WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR);
2231
2232 /* Use normal bias source */
2233 regmap_update_bits(wm8904->regmap, WM8904_BIAS_CONTROL_0,
2234 WM8904_POBCTRL, 0);
2235
2236 /* Can leave the device powered off until we need it */
2237 regcache_cache_only(wm8904->regmap, true);
2238 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2239
2240 ret = snd_soc_register_codec(&i2c->dev,
2241 &soc_codec_dev_wm8904, &wm8904_dai, 1);
2242 if (ret != 0)
2243 return ret;
2244
2245 return 0;
2246
2247 err_enable:
2248 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2249 return ret;
2250 }
2251
2252 static __devexit int wm8904_i2c_remove(struct i2c_client *client)
2253 {
2254 snd_soc_unregister_codec(&client->dev);
2255 return 0;
2256 }
2257
2258 static const struct i2c_device_id wm8904_i2c_id[] = {
2259 { "wm8904", WM8904 },
2260 { "wm8912", WM8912 },
2261 { "wm8918", WM8904 }, /* Actually a subset, updates to follow */
2262 { }
2263 };
2264 MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);
2265
2266 static struct i2c_driver wm8904_i2c_driver = {
2267 .driver = {
2268 .name = "wm8904",
2269 .owner = THIS_MODULE,
2270 },
2271 .probe = wm8904_i2c_probe,
2272 .remove = __devexit_p(wm8904_i2c_remove),
2273 .id_table = wm8904_i2c_id,
2274 };
2275
2276 module_i2c_driver(wm8904_i2c_driver);
2277
2278 MODULE_DESCRIPTION("ASoC WM8904 driver");
2279 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
2280 MODULE_LICENSE("GPL");
Linux with added FPC-III support