2 * wm8993.c -- WM8993 ALSA SoC audio driver
4 * Copyright 2009, 2010 Wolfson Microelectronics plc
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
18 #include <linux/i2c.h>
19 #include <linux/regulator/consumer.h>
20 #include <linux/spi/spi.h>
21 #include <linux/slab.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/tlv.h>
26 #include <sound/soc.h>
27 #include <sound/soc-dapm.h>
28 #include <sound/initval.h>
29 #include <sound/wm8993.h>
34 #define WM8993_NUM_SUPPLIES 6
35 static const char *wm8993_supply_names[WM8993_NUM_SUPPLIES] = {
44 static u16 wm8993_reg_defaults[WM8993_REGISTER_COUNT] = {
45 0x8993, /* R0 - Software Reset */
46 0x0000, /* R1 - Power Management (1) */
47 0x6000, /* R2 - Power Management (2) */
48 0x0000, /* R3 - Power Management (3) */
49 0x4050, /* R4 - Audio Interface (1) */
50 0x4000, /* R5 - Audio Interface (2) */
51 0x01C8, /* R6 - Clocking 1 */
52 0x0000, /* R7 - Clocking 2 */
53 0x0000, /* R8 - Audio Interface (3) */
54 0x0040, /* R9 - Audio Interface (4) */
55 0x0004, /* R10 - DAC CTRL */
56 0x00C0, /* R11 - Left DAC Digital Volume */
57 0x00C0, /* R12 - Right DAC Digital Volume */
58 0x0000, /* R13 - Digital Side Tone */
59 0x0300, /* R14 - ADC CTRL */
60 0x00C0, /* R15 - Left ADC Digital Volume */
61 0x00C0, /* R16 - Right ADC Digital Volume */
63 0x0000, /* R18 - GPIO CTRL 1 */
64 0x0010, /* R19 - GPIO1 */
65 0x0000, /* R20 - IRQ_DEBOUNCE */
67 0x8000, /* R22 - GPIOCTRL 2 */
68 0x0800, /* R23 - GPIO_POL */
69 0x008B, /* R24 - Left Line Input 1&2 Volume */
70 0x008B, /* R25 - Left Line Input 3&4 Volume */
71 0x008B, /* R26 - Right Line Input 1&2 Volume */
72 0x008B, /* R27 - Right Line Input 3&4 Volume */
73 0x006D, /* R28 - Left Output Volume */
74 0x006D, /* R29 - Right Output Volume */
75 0x0066, /* R30 - Line Outputs Volume */
76 0x0020, /* R31 - HPOUT2 Volume */
77 0x0079, /* R32 - Left OPGA Volume */
78 0x0079, /* R33 - Right OPGA Volume */
79 0x0003, /* R34 - SPKMIXL Attenuation */
80 0x0003, /* R35 - SPKMIXR Attenuation */
81 0x0011, /* R36 - SPKOUT Mixers */
82 0x0100, /* R37 - SPKOUT Boost */
83 0x0079, /* R38 - Speaker Volume Left */
84 0x0079, /* R39 - Speaker Volume Right */
85 0x0000, /* R40 - Input Mixer2 */
86 0x0000, /* R41 - Input Mixer3 */
87 0x0000, /* R42 - Input Mixer4 */
88 0x0000, /* R43 - Input Mixer5 */
89 0x0000, /* R44 - Input Mixer6 */
90 0x0000, /* R45 - Output Mixer1 */
91 0x0000, /* R46 - Output Mixer2 */
92 0x0000, /* R47 - Output Mixer3 */
93 0x0000, /* R48 - Output Mixer4 */
94 0x0000, /* R49 - Output Mixer5 */
95 0x0000, /* R50 - Output Mixer6 */
96 0x0000, /* R51 - HPOUT2 Mixer */
97 0x0000, /* R52 - Line Mixer1 */
98 0x0000, /* R53 - Line Mixer2 */
99 0x0000, /* R54 - Speaker Mixer */
100 0x0000, /* R55 - Additional Control */
101 0x0000, /* R56 - AntiPOP1 */
102 0x0000, /* R57 - AntiPOP2 */
103 0x0000, /* R58 - MICBIAS */
105 0x0000, /* R60 - FLL Control 1 */
106 0x0000, /* R61 - FLL Control 2 */
107 0x0000, /* R62 - FLL Control 3 */
108 0x2EE0, /* R63 - FLL Control 4 */
109 0x0002, /* R64 - FLL Control 5 */
110 0x2287, /* R65 - Clocking 3 */
111 0x025F, /* R66 - Clocking 4 */
112 0x0000, /* R67 - MW Slave Control */
114 0x0002, /* R69 - Bus Control 1 */
115 0x0000, /* R70 - Write Sequencer 0 */
116 0x0000, /* R71 - Write Sequencer 1 */
117 0x0000, /* R72 - Write Sequencer 2 */
118 0x0000, /* R73 - Write Sequencer 3 */
119 0x0000, /* R74 - Write Sequencer 4 */
120 0x0000, /* R75 - Write Sequencer 5 */
121 0x1F25, /* R76 - Charge Pump 1 */
126 0x0000, /* R81 - Class W 0 */
129 0x0000, /* R84 - DC Servo 0 */
130 0x054A, /* R85 - DC Servo 1 */
132 0x0000, /* R87 - DC Servo 3 */
133 0x0000, /* R88 - DC Servo Readback 0 */
134 0x0000, /* R89 - DC Servo Readback 1 */
135 0x0000, /* R90 - DC Servo Readback 2 */
141 0x0100, /* R96 - Analogue HP 0 */
143 0x0000, /* R98 - EQ1 */
144 0x000C, /* R99 - EQ2 */
145 0x000C, /* R100 - EQ3 */
146 0x000C, /* R101 - EQ4 */
147 0x000C, /* R102 - EQ5 */
148 0x000C, /* R103 - EQ6 */
149 0x0FCA, /* R104 - EQ7 */
150 0x0400, /* R105 - EQ8 */
151 0x00D8, /* R106 - EQ9 */
152 0x1EB5, /* R107 - EQ10 */
153 0xF145, /* R108 - EQ11 */
154 0x0B75, /* R109 - EQ12 */
155 0x01C5, /* R110 - EQ13 */
156 0x1C58, /* R111 - EQ14 */
157 0xF373, /* R112 - EQ15 */
158 0x0A54, /* R113 - EQ16 */
159 0x0558, /* R114 - EQ17 */
160 0x168E, /* R115 - EQ18 */
161 0xF829, /* R116 - EQ19 */
162 0x07AD, /* R117 - EQ20 */
163 0x1103, /* R118 - EQ21 */
164 0x0564, /* R119 - EQ22 */
165 0x0559, /* R120 - EQ23 */
166 0x4000, /* R121 - EQ24 */
167 0x0000, /* R122 - Digital Pulls */
168 0x0F08, /* R123 - DRC Control 1 */
169 0x0000, /* R124 - DRC Control 2 */
170 0x0080, /* R125 - DRC Control 3 */
171 0x0000, /* R126 - DRC Control 4 */
177 } clk_sys_rates[] = {
206 int div; /* *10 due to .5s */
228 struct wm_hubs_data hubs_data;
229 u16 reg_cache[WM8993_REGISTER_COUNT];
230 struct regulator_bulk_data supplies[WM8993_NUM_SUPPLIES];
231 struct wm8993_platform_data pdata;
232 enum snd_soc_control_type control_type;
237 unsigned int mclk_rate;
238 unsigned int sysclk_rate;
242 unsigned int fll_fref;
243 unsigned int fll_fout;
247 static int wm8993_volatile(unsigned int reg)
250 case WM8993_SOFTWARE_RESET:
251 case WM8993_DC_SERVO_0:
252 case WM8993_DC_SERVO_READBACK_0:
253 case WM8993_DC_SERVO_READBACK_1:
254 case WM8993_DC_SERVO_READBACK_2:
269 /* The size in bits of the FLL divide multiplied by 10
270 * to allow rounding later */
271 #define FIXED_FLL_SIZE ((1 << 16) * 10)
280 { 64000, 128000, 3, 8 },
281 { 128000, 256000, 2, 4 },
282 { 256000, 1000000, 1, 2 },
283 { 1000000, 13500000, 0, 1 },
286 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
290 unsigned int K, Ndiv, Nmod, target;
294 /* Fref must be <=13.5MHz */
296 fll_div->fll_clk_ref_div = 0;
297 while ((Fref / div) > 13500000) {
299 fll_div->fll_clk_ref_div++;
302 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
308 pr_debug("Fref=%u Fout=%u\n", Fref, Fout);
310 /* Apply the division for our remaining calculations */
313 /* Fvco should be 90-100MHz; don't check the upper bound */
316 while (target < 90000000) {
320 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
325 fll_div->fll_outdiv = div;
327 pr_debug("Fvco=%dHz\n", target);
329 /* Find an appropraite FLL_FRATIO and factor it out of the target */
330 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
331 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
332 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
333 target /= fll_fratios[i].ratio;
337 if (i == ARRAY_SIZE(fll_fratios)) {
338 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
342 /* Now, calculate N.K */
343 Ndiv = target / Fref;
346 Nmod = target % Fref;
347 pr_debug("Nmod=%d\n", Nmod);
349 /* Calculate fractional part - scale up so we can round. */
350 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
354 K = Kpart & 0xFFFFFFFF;
359 /* Move down to proper range now rounding is done */
362 pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n",
363 fll_div->n, fll_div->k,
364 fll_div->fll_fratio, fll_div->fll_outdiv,
365 fll_div->fll_clk_ref_div);
370 static int _wm8993_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
371 unsigned int Fref, unsigned int Fout)
373 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
374 u16 reg1, reg4, reg5;
375 struct _fll_div fll_div;
379 if (Fref == wm8993->fll_fref && Fout == wm8993->fll_fout)
382 /* Disable the FLL */
384 dev_dbg(codec->dev, "FLL disabled\n");
385 wm8993->fll_fref = 0;
386 wm8993->fll_fout = 0;
388 reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
389 reg1 &= ~WM8993_FLL_ENA;
390 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
395 ret = fll_factors(&fll_div, Fref, Fout);
399 reg5 = snd_soc_read(codec, WM8993_FLL_CONTROL_5);
400 reg5 &= ~WM8993_FLL_CLK_SRC_MASK;
403 case WM8993_FLL_MCLK:
406 case WM8993_FLL_LRCLK:
410 case WM8993_FLL_BCLK:
415 dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
419 /* Any FLL configuration change requires that the FLL be
421 reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
422 reg1 &= ~WM8993_FLL_ENA;
423 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
425 /* Apply the configuration */
427 reg1 |= WM8993_FLL_FRAC_MASK;
429 reg1 &= ~WM8993_FLL_FRAC_MASK;
430 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
432 snd_soc_write(codec, WM8993_FLL_CONTROL_2,
433 (fll_div.fll_outdiv << WM8993_FLL_OUTDIV_SHIFT) |
434 (fll_div.fll_fratio << WM8993_FLL_FRATIO_SHIFT));
435 snd_soc_write(codec, WM8993_FLL_CONTROL_3, fll_div.k);
437 reg4 = snd_soc_read(codec, WM8993_FLL_CONTROL_4);
438 reg4 &= ~WM8993_FLL_N_MASK;
439 reg4 |= fll_div.n << WM8993_FLL_N_SHIFT;
440 snd_soc_write(codec, WM8993_FLL_CONTROL_4, reg4);
442 reg5 &= ~WM8993_FLL_CLK_REF_DIV_MASK;
443 reg5 |= fll_div.fll_clk_ref_div << WM8993_FLL_CLK_REF_DIV_SHIFT;
444 snd_soc_write(codec, WM8993_FLL_CONTROL_5, reg5);
447 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA);
449 dev_dbg(codec->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout);
451 wm8993->fll_fref = Fref;
452 wm8993->fll_fout = Fout;
453 wm8993->fll_src = source;
458 static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
459 unsigned int Fref, unsigned int Fout)
461 return _wm8993_set_fll(dai->codec, fll_id, source, Fref, Fout);
464 static int configure_clock(struct snd_soc_codec *codec)
466 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
469 /* This should be done on init() for bypass paths */
470 switch (wm8993->sysclk_source) {
471 case WM8993_SYSCLK_MCLK:
472 dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8993->mclk_rate);
474 reg = snd_soc_read(codec, WM8993_CLOCKING_2);
475 reg &= ~(WM8993_MCLK_DIV | WM8993_SYSCLK_SRC);
476 if (wm8993->mclk_rate > 13500000) {
477 reg |= WM8993_MCLK_DIV;
478 wm8993->sysclk_rate = wm8993->mclk_rate / 2;
480 reg &= ~WM8993_MCLK_DIV;
481 wm8993->sysclk_rate = wm8993->mclk_rate;
483 snd_soc_write(codec, WM8993_CLOCKING_2, reg);
486 case WM8993_SYSCLK_FLL:
487 dev_dbg(codec->dev, "Using %dHz FLL clock\n",
490 reg = snd_soc_read(codec, WM8993_CLOCKING_2);
491 reg |= WM8993_SYSCLK_SRC;
492 if (wm8993->fll_fout > 13500000) {
493 reg |= WM8993_MCLK_DIV;
494 wm8993->sysclk_rate = wm8993->fll_fout / 2;
496 reg &= ~WM8993_MCLK_DIV;
497 wm8993->sysclk_rate = wm8993->fll_fout;
499 snd_soc_write(codec, WM8993_CLOCKING_2, reg);
503 dev_err(codec->dev, "System clock not configured\n");
507 dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8993->sysclk_rate);
512 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
513 static const DECLARE_TLV_DB_SCALE(drc_comp_threash, -4500, 75, 0);
514 static const DECLARE_TLV_DB_SCALE(drc_comp_amp, -2250, 75, 0);
515 static const DECLARE_TLV_DB_SCALE(drc_min_tlv, -1800, 600, 0);
516 static const unsigned int drc_max_tlv[] = {
517 TLV_DB_RANGE_HEAD(4),
518 0, 2, TLV_DB_SCALE_ITEM(1200, 600, 0),
519 3, 3, TLV_DB_SCALE_ITEM(3600, 0, 0),
521 static const DECLARE_TLV_DB_SCALE(drc_qr_tlv, 1200, 600, 0);
522 static const DECLARE_TLV_DB_SCALE(drc_startup_tlv, -1800, 300, 0);
523 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
524 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
525 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
527 static const char *dac_deemph_text[] = {
534 static const struct soc_enum dac_deemph =
535 SOC_ENUM_SINGLE(WM8993_DAC_CTRL, 4, 4, dac_deemph_text);
537 static const char *adc_hpf_text[] = {
544 static const struct soc_enum adc_hpf =
545 SOC_ENUM_SINGLE(WM8993_ADC_CTRL, 5, 4, adc_hpf_text);
547 static const char *drc_path_text[] = {
552 static const struct soc_enum drc_path =
553 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_1, 14, 2, drc_path_text);
555 static const char *drc_r0_text[] = {
564 static const struct soc_enum drc_r0 =
565 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 8, 6, drc_r0_text);
567 static const char *drc_r1_text[] = {
575 static const struct soc_enum drc_r1 =
576 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_4, 13, 5, drc_r1_text);
578 static const char *drc_attack_text[] = {
593 static const struct soc_enum drc_attack =
594 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_2, 12, 12, drc_attack_text);
596 static const char *drc_decay_text[] = {
608 static const struct soc_enum drc_decay =
609 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_2, 8, 9, drc_decay_text);
611 static const char *drc_ff_text[] = {
616 static const struct soc_enum drc_ff =
617 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 7, 2, drc_ff_text);
619 static const char *drc_qr_rate_text[] = {
625 static const struct soc_enum drc_qr_rate =
626 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 0, 3, drc_qr_rate_text);
628 static const char *drc_smooth_text[] = {
634 static const struct soc_enum drc_smooth =
635 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_1, 4, 3, drc_smooth_text);
637 static const struct snd_kcontrol_new wm8993_snd_controls[] = {
638 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8993_DIGITAL_SIDE_TONE,
639 5, 9, 12, 0, sidetone_tlv),
641 SOC_SINGLE("DRC Switch", WM8993_DRC_CONTROL_1, 15, 1, 0),
642 SOC_ENUM("DRC Path", drc_path),
643 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8993_DRC_CONTROL_2,
644 2, 60, 1, drc_comp_threash),
645 SOC_SINGLE_TLV("DRC Compressor Amplitude Volume", WM8993_DRC_CONTROL_3,
646 11, 30, 1, drc_comp_amp),
647 SOC_ENUM("DRC R0", drc_r0),
648 SOC_ENUM("DRC R1", drc_r1),
649 SOC_SINGLE_TLV("DRC Minimum Volume", WM8993_DRC_CONTROL_1, 2, 3, 1,
651 SOC_SINGLE_TLV("DRC Maximum Volume", WM8993_DRC_CONTROL_1, 0, 3, 0,
653 SOC_ENUM("DRC Attack Rate", drc_attack),
654 SOC_ENUM("DRC Decay Rate", drc_decay),
655 SOC_ENUM("DRC FF Delay", drc_ff),
656 SOC_SINGLE("DRC Anti-clip Switch", WM8993_DRC_CONTROL_1, 9, 1, 0),
657 SOC_SINGLE("DRC Quick Release Switch", WM8993_DRC_CONTROL_1, 10, 1, 0),
658 SOC_SINGLE_TLV("DRC Quick Release Volume", WM8993_DRC_CONTROL_3, 2, 3, 0,
660 SOC_ENUM("DRC Quick Release Rate", drc_qr_rate),
661 SOC_SINGLE("DRC Smoothing Switch", WM8993_DRC_CONTROL_1, 11, 1, 0),
662 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8993_DRC_CONTROL_1, 8, 1, 0),
663 SOC_ENUM("DRC Smoothing Hysteresis Threshold", drc_smooth),
664 SOC_SINGLE_TLV("DRC Startup Volume", WM8993_DRC_CONTROL_4, 8, 18, 0,
667 SOC_SINGLE("EQ Switch", WM8993_EQ1, 0, 1, 0),
669 SOC_DOUBLE_R_TLV("Capture Volume", WM8993_LEFT_ADC_DIGITAL_VOLUME,
670 WM8993_RIGHT_ADC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
671 SOC_SINGLE("ADC High Pass Filter Switch", WM8993_ADC_CTRL, 8, 1, 0),
672 SOC_ENUM("ADC High Pass Filter Mode", adc_hpf),
674 SOC_DOUBLE_R_TLV("Playback Volume", WM8993_LEFT_DAC_DIGITAL_VOLUME,
675 WM8993_RIGHT_DAC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
676 SOC_SINGLE_TLV("Playback Boost Volume", WM8993_AUDIO_INTERFACE_2, 10, 3, 0,
678 SOC_ENUM("DAC Deemphasis", dac_deemph),
680 SOC_SINGLE_TLV("SPKL DAC Volume", WM8993_SPKMIXL_ATTENUATION,
681 2, 1, 1, wm_hubs_spkmix_tlv),
683 SOC_SINGLE_TLV("SPKR DAC Volume", WM8993_SPKMIXR_ATTENUATION,
684 2, 1, 1, wm_hubs_spkmix_tlv),
687 static const struct snd_kcontrol_new wm8993_eq_controls[] = {
688 SOC_SINGLE_TLV("EQ1 Volume", WM8993_EQ2, 0, 24, 0, eq_tlv),
689 SOC_SINGLE_TLV("EQ2 Volume", WM8993_EQ3, 0, 24, 0, eq_tlv),
690 SOC_SINGLE_TLV("EQ3 Volume", WM8993_EQ4, 0, 24, 0, eq_tlv),
691 SOC_SINGLE_TLV("EQ4 Volume", WM8993_EQ5, 0, 24, 0, eq_tlv),
692 SOC_SINGLE_TLV("EQ5 Volume", WM8993_EQ6, 0, 24, 0, eq_tlv),
695 static int clk_sys_event(struct snd_soc_dapm_widget *w,
696 struct snd_kcontrol *kcontrol, int event)
698 struct snd_soc_codec *codec = w->codec;
701 case SND_SOC_DAPM_PRE_PMU:
702 return configure_clock(codec);
704 case SND_SOC_DAPM_POST_PMD:
712 * When used with DAC outputs only the WM8993 charge pump supports
713 * operation in class W mode, providing very low power consumption
714 * when used with digital sources. Enable and disable this mode
715 * automatically depending on the mixer configuration.
717 * Currently the only supported paths are the direct DAC->headphone
718 * paths (which provide minimum power consumption anyway).
720 static int class_w_put(struct snd_kcontrol *kcontrol,
721 struct snd_ctl_elem_value *ucontrol)
723 struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
724 struct snd_soc_codec *codec = widget->codec;
725 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
728 /* Turn it off if we're using the main output mixer */
729 if (ucontrol->value.integer.value[0] == 0) {
730 if (wm8993->class_w_users == 0) {
731 dev_dbg(codec->dev, "Disabling Class W\n");
732 snd_soc_update_bits(codec, WM8993_CLASS_W_0,
737 wm8993->class_w_users++;
738 wm8993->hubs_data.class_w = true;
741 /* Implement the change */
742 ret = snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
744 /* Enable it if we're using the direct DAC path */
745 if (ucontrol->value.integer.value[0] == 1) {
746 if (wm8993->class_w_users == 1) {
747 dev_dbg(codec->dev, "Enabling Class W\n");
748 snd_soc_update_bits(codec, WM8993_CLASS_W_0,
754 wm8993->class_w_users--;
755 wm8993->hubs_data.class_w = false;
758 dev_dbg(codec->dev, "Indirect DAC use count now %d\n",
759 wm8993->class_w_users);
764 #define SOC_DAPM_ENUM_W(xname, xenum) \
765 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
766 .info = snd_soc_info_enum_double, \
767 .get = snd_soc_dapm_get_enum_double, \
768 .put = class_w_put, \
769 .private_value = (unsigned long)&xenum }
771 static const char *hp_mux_text[] = {
776 static const struct soc_enum hpl_enum =
777 SOC_ENUM_SINGLE(WM8993_OUTPUT_MIXER1, 8, 2, hp_mux_text);
779 static const struct snd_kcontrol_new hpl_mux =
780 SOC_DAPM_ENUM_W("Left Headphone Mux", hpl_enum);
782 static const struct soc_enum hpr_enum =
783 SOC_ENUM_SINGLE(WM8993_OUTPUT_MIXER2, 8, 2, hp_mux_text);
785 static const struct snd_kcontrol_new hpr_mux =
786 SOC_DAPM_ENUM_W("Right Headphone Mux", hpr_enum);
788 static const struct snd_kcontrol_new left_speaker_mixer[] = {
789 SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 7, 1, 0),
790 SOC_DAPM_SINGLE("IN1LP Switch", WM8993_SPEAKER_MIXER, 5, 1, 0),
791 SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 3, 1, 0),
792 SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
795 static const struct snd_kcontrol_new right_speaker_mixer[] = {
796 SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
797 SOC_DAPM_SINGLE("IN1RP Switch", WM8993_SPEAKER_MIXER, 4, 1, 0),
798 SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 2, 1, 0),
799 SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 0, 1, 0),
802 static const char *aif_text[] = {
806 static const struct soc_enum aifoutl_enum =
807 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_1, 15, 2, aif_text);
809 static const struct snd_kcontrol_new aifoutl_mux =
810 SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
812 static const struct soc_enum aifoutr_enum =
813 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_1, 14, 2, aif_text);
815 static const struct snd_kcontrol_new aifoutr_mux =
816 SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
818 static const struct soc_enum aifinl_enum =
819 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_2, 15, 2, aif_text);
821 static const struct snd_kcontrol_new aifinl_mux =
822 SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
824 static const struct soc_enum aifinr_enum =
825 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_2, 14, 2, aif_text);
827 static const struct snd_kcontrol_new aifinr_mux =
828 SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
830 static const char *sidetone_text[] = {
831 "None", "Left", "Right"
834 static const struct soc_enum sidetonel_enum =
835 SOC_ENUM_SINGLE(WM8993_DIGITAL_SIDE_TONE, 2, 3, sidetone_text);
837 static const struct snd_kcontrol_new sidetonel_mux =
838 SOC_DAPM_ENUM("Left Sidetone", sidetonel_enum);
840 static const struct soc_enum sidetoner_enum =
841 SOC_ENUM_SINGLE(WM8993_DIGITAL_SIDE_TONE, 0, 3, sidetone_text);
843 static const struct snd_kcontrol_new sidetoner_mux =
844 SOC_DAPM_ENUM("Right Sidetone", sidetoner_enum);
846 static const struct snd_soc_dapm_widget wm8993_dapm_widgets[] = {
847 SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8993_BUS_CONTROL_1, 1, 0, clk_sys_event,
848 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
849 SND_SOC_DAPM_SUPPLY("TOCLK", WM8993_CLOCKING_1, 14, 0, NULL, 0),
850 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8993_CLOCKING_3, 0, 0, NULL, 0),
852 SND_SOC_DAPM_ADC("ADCL", NULL, WM8993_POWER_MANAGEMENT_2, 1, 0),
853 SND_SOC_DAPM_ADC("ADCR", NULL, WM8993_POWER_MANAGEMENT_2, 0, 0),
855 SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux),
856 SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux),
858 SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
859 SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
861 SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
862 SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
864 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux),
865 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux),
867 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &sidetonel_mux),
868 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &sidetoner_mux),
870 SND_SOC_DAPM_DAC("DACL", NULL, WM8993_POWER_MANAGEMENT_3, 1, 0),
871 SND_SOC_DAPM_DAC("DACR", NULL, WM8993_POWER_MANAGEMENT_3, 0, 0),
873 SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
874 SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
876 SND_SOC_DAPM_MIXER("SPKL", WM8993_POWER_MANAGEMENT_3, 8, 0,
877 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
878 SND_SOC_DAPM_MIXER("SPKR", WM8993_POWER_MANAGEMENT_3, 9, 0,
879 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
883 static const struct snd_soc_dapm_route routes[] = {
884 { "ADCL", NULL, "CLK_SYS" },
885 { "ADCL", NULL, "CLK_DSP" },
886 { "ADCR", NULL, "CLK_SYS" },
887 { "ADCR", NULL, "CLK_DSP" },
889 { "AIFOUTL Mux", "Left", "ADCL" },
890 { "AIFOUTL Mux", "Right", "ADCR" },
891 { "AIFOUTR Mux", "Left", "ADCL" },
892 { "AIFOUTR Mux", "Right", "ADCR" },
894 { "AIFOUTL", NULL, "AIFOUTL Mux" },
895 { "AIFOUTR", NULL, "AIFOUTR Mux" },
897 { "DACL Mux", "Left", "AIFINL" },
898 { "DACL Mux", "Right", "AIFINR" },
899 { "DACR Mux", "Left", "AIFINL" },
900 { "DACR Mux", "Right", "AIFINR" },
902 { "DACL Sidetone", "Left", "ADCL" },
903 { "DACL Sidetone", "Right", "ADCR" },
904 { "DACR Sidetone", "Left", "ADCL" },
905 { "DACR Sidetone", "Right", "ADCR" },
907 { "DACL", NULL, "CLK_SYS" },
908 { "DACL", NULL, "CLK_DSP" },
909 { "DACL", NULL, "DACL Mux" },
910 { "DACL", NULL, "DACL Sidetone" },
911 { "DACR", NULL, "CLK_SYS" },
912 { "DACR", NULL, "CLK_DSP" },
913 { "DACR", NULL, "DACR Mux" },
914 { "DACR", NULL, "DACR Sidetone" },
916 { "Left Output Mixer", "DAC Switch", "DACL" },
918 { "Right Output Mixer", "DAC Switch", "DACR" },
920 { "Left Output PGA", NULL, "CLK_SYS" },
922 { "Right Output PGA", NULL, "CLK_SYS" },
924 { "SPKL", "DAC Switch", "DACL" },
925 { "SPKL", NULL, "CLK_SYS" },
927 { "SPKR", "DAC Switch", "DACR" },
928 { "SPKR", NULL, "CLK_SYS" },
930 { "Left Headphone Mux", "DAC", "DACL" },
931 { "Right Headphone Mux", "DAC", "DACR" },
934 static void wm8993_cache_restore(struct snd_soc_codec *codec)
936 u16 *cache = codec->reg_cache;
939 if (!codec->cache_sync)
942 /* Reenable hardware writes */
943 codec->cache_only = 0;
945 /* Restore the register settings */
946 for (i = 1; i < WM8993_MAX_REGISTER; i++) {
947 if (cache[i] == wm8993_reg_defaults[i])
949 snd_soc_write(codec, i, cache[i]);
952 /* We're in sync again */
953 codec->cache_sync = 0;
956 static int wm8993_set_bias_level(struct snd_soc_codec *codec,
957 enum snd_soc_bias_level level)
959 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
963 case SND_SOC_BIAS_ON:
964 case SND_SOC_BIAS_PREPARE:
966 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
967 WM8993_VMID_SEL_MASK, 0x2);
968 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
969 WM8993_TSHUT_ENA, WM8993_TSHUT_ENA);
972 case SND_SOC_BIAS_STANDBY:
973 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
974 ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
979 wm8993_cache_restore(codec);
981 /* Tune DC servo configuration */
982 snd_soc_write(codec, 0x44, 3);
983 snd_soc_write(codec, 0x56, 3);
984 snd_soc_write(codec, 0x44, 0);
986 /* Bring up VMID with fast soft start */
987 snd_soc_update_bits(codec, WM8993_ANTIPOP2,
988 WM8993_STARTUP_BIAS_ENA |
989 WM8993_VMID_BUF_ENA |
990 WM8993_VMID_RAMP_MASK |
992 WM8993_STARTUP_BIAS_ENA |
993 WM8993_VMID_BUF_ENA |
994 WM8993_VMID_RAMP_MASK |
997 /* If either line output is single ended we
998 * need the VMID buffer */
999 if (!wm8993->pdata.lineout1_diff ||
1000 !wm8993->pdata.lineout2_diff)
1001 snd_soc_update_bits(codec, WM8993_ANTIPOP1,
1002 WM8993_LINEOUT_VMID_BUF_ENA,
1003 WM8993_LINEOUT_VMID_BUF_ENA);
1006 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
1007 WM8993_VMID_SEL_MASK |
1009 WM8993_BIAS_ENA | 0x2);
1012 /* Switch to normal bias */
1013 snd_soc_update_bits(codec, WM8993_ANTIPOP2,
1015 WM8993_STARTUP_BIAS_ENA, 0);
1019 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
1020 WM8993_VMID_SEL_MASK, 0x4);
1022 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
1023 WM8993_TSHUT_ENA, 0);
1026 case SND_SOC_BIAS_OFF:
1027 snd_soc_update_bits(codec, WM8993_ANTIPOP1,
1028 WM8993_LINEOUT_VMID_BUF_ENA, 0);
1030 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
1031 WM8993_VMID_SEL_MASK | WM8993_BIAS_ENA,
1034 #ifdef CONFIG_REGULATOR
1035 /* Post 2.6.34 we will be able to get a callback when
1036 * the regulators are disabled which we can use but
1037 * for now just assume that the power will be cut if
1038 * the regulator API is in use.
1040 codec->cache_sync = 1;
1043 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies),
1048 codec->dapm.bias_level = level;
1053 static int wm8993_set_sysclk(struct snd_soc_dai *codec_dai,
1054 int clk_id, unsigned int freq, int dir)
1056 struct snd_soc_codec *codec = codec_dai->codec;
1057 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1060 case WM8993_SYSCLK_MCLK:
1061 wm8993->mclk_rate = freq;
1062 case WM8993_SYSCLK_FLL:
1063 wm8993->sysclk_source = clk_id;
1073 static int wm8993_set_dai_fmt(struct snd_soc_dai *dai,
1076 struct snd_soc_codec *codec = dai->codec;
1077 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1078 unsigned int aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
1079 unsigned int aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
1081 aif1 &= ~(WM8993_BCLK_DIR | WM8993_AIF_BCLK_INV |
1082 WM8993_AIF_LRCLK_INV | WM8993_AIF_FMT_MASK);
1083 aif4 &= ~WM8993_LRCLK_DIR;
1085 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1086 case SND_SOC_DAIFMT_CBS_CFS:
1089 case SND_SOC_DAIFMT_CBS_CFM:
1090 aif4 |= WM8993_LRCLK_DIR;
1093 case SND_SOC_DAIFMT_CBM_CFS:
1094 aif1 |= WM8993_BCLK_DIR;
1097 case SND_SOC_DAIFMT_CBM_CFM:
1098 aif1 |= WM8993_BCLK_DIR;
1099 aif4 |= WM8993_LRCLK_DIR;
1106 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1107 case SND_SOC_DAIFMT_DSP_B:
1108 aif1 |= WM8993_AIF_LRCLK_INV;
1109 case SND_SOC_DAIFMT_DSP_A:
1112 case SND_SOC_DAIFMT_I2S:
1115 case SND_SOC_DAIFMT_RIGHT_J:
1117 case SND_SOC_DAIFMT_LEFT_J:
1124 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1125 case SND_SOC_DAIFMT_DSP_A:
1126 case SND_SOC_DAIFMT_DSP_B:
1127 /* frame inversion not valid for DSP modes */
1128 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1129 case SND_SOC_DAIFMT_NB_NF:
1131 case SND_SOC_DAIFMT_IB_NF:
1132 aif1 |= WM8993_AIF_BCLK_INV;
1139 case SND_SOC_DAIFMT_I2S:
1140 case SND_SOC_DAIFMT_RIGHT_J:
1141 case SND_SOC_DAIFMT_LEFT_J:
1142 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1143 case SND_SOC_DAIFMT_NB_NF:
1145 case SND_SOC_DAIFMT_IB_IF:
1146 aif1 |= WM8993_AIF_BCLK_INV | WM8993_AIF_LRCLK_INV;
1148 case SND_SOC_DAIFMT_IB_NF:
1149 aif1 |= WM8993_AIF_BCLK_INV;
1151 case SND_SOC_DAIFMT_NB_IF:
1152 aif1 |= WM8993_AIF_LRCLK_INV;
1162 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
1163 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
1168 static int wm8993_hw_params(struct snd_pcm_substream *substream,
1169 struct snd_pcm_hw_params *params,
1170 struct snd_soc_dai *dai)
1172 struct snd_soc_codec *codec = dai->codec;
1173 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1174 int ret, i, best, best_val, cur_val;
1175 unsigned int clocking1, clocking3, aif1, aif4;
1177 clocking1 = snd_soc_read(codec, WM8993_CLOCKING_1);
1178 clocking1 &= ~WM8993_BCLK_DIV_MASK;
1180 clocking3 = snd_soc_read(codec, WM8993_CLOCKING_3);
1181 clocking3 &= ~(WM8993_CLK_SYS_RATE_MASK | WM8993_SAMPLE_RATE_MASK);
1183 aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
1184 aif1 &= ~WM8993_AIF_WL_MASK;
1186 aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
1187 aif4 &= ~WM8993_LRCLK_RATE_MASK;
1189 /* What BCLK do we need? */
1190 wm8993->fs = params_rate(params);
1191 wm8993->bclk = 2 * wm8993->fs;
1192 if (wm8993->tdm_slots) {
1193 dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
1194 wm8993->tdm_slots, wm8993->tdm_width);
1195 wm8993->bclk *= wm8993->tdm_width * wm8993->tdm_slots;
1197 switch (params_format(params)) {
1198 case SNDRV_PCM_FORMAT_S16_LE:
1201 case SNDRV_PCM_FORMAT_S20_3LE:
1205 case SNDRV_PCM_FORMAT_S24_LE:
1209 case SNDRV_PCM_FORMAT_S32_LE:
1218 dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8993->bclk);
1220 ret = configure_clock(codec);
1224 /* Select nearest CLK_SYS_RATE */
1226 best_val = abs((wm8993->sysclk_rate / clk_sys_rates[0].ratio)
1228 for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
1229 cur_val = abs((wm8993->sysclk_rate /
1230 clk_sys_rates[i].ratio) - wm8993->fs);
1231 if (cur_val < best_val) {
1236 dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
1237 clk_sys_rates[best].ratio);
1238 clocking3 |= (clk_sys_rates[best].clk_sys_rate
1239 << WM8993_CLK_SYS_RATE_SHIFT);
1243 best_val = abs(wm8993->fs - sample_rates[0].rate);
1244 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1246 cur_val = abs(wm8993->fs - sample_rates[i].rate);
1247 if (cur_val < best_val) {
1252 dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
1253 sample_rates[best].rate);
1254 clocking3 |= (sample_rates[best].sample_rate
1255 << WM8993_SAMPLE_RATE_SHIFT);
1260 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1261 cur_val = ((wm8993->sysclk_rate * 10) / bclk_divs[i].div)
1263 if (cur_val < 0) /* Table is sorted */
1265 if (cur_val < best_val) {
1270 wm8993->bclk = (wm8993->sysclk_rate * 10) / bclk_divs[best].div;
1271 dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
1272 bclk_divs[best].div, wm8993->bclk);
1273 clocking1 |= bclk_divs[best].bclk_div << WM8993_BCLK_DIV_SHIFT;
1275 /* LRCLK is a simple fraction of BCLK */
1276 dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8993->bclk / wm8993->fs);
1277 aif4 |= wm8993->bclk / wm8993->fs;
1279 snd_soc_write(codec, WM8993_CLOCKING_1, clocking1);
1280 snd_soc_write(codec, WM8993_CLOCKING_3, clocking3);
1281 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
1282 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
1284 /* ReTune Mobile? */
1285 if (wm8993->pdata.num_retune_configs) {
1286 u16 eq1 = snd_soc_read(codec, WM8993_EQ1);
1287 struct wm8993_retune_mobile_setting *s;
1290 best_val = abs(wm8993->pdata.retune_configs[0].rate
1292 for (i = 0; i < wm8993->pdata.num_retune_configs; i++) {
1293 cur_val = abs(wm8993->pdata.retune_configs[i].rate
1295 if (cur_val < best_val) {
1300 s = &wm8993->pdata.retune_configs[best];
1302 dev_dbg(codec->dev, "ReTune Mobile %s tuned for %dHz\n",
1305 /* Disable EQ while we reconfigure */
1306 snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, 0);
1308 for (i = 1; i < ARRAY_SIZE(s->config); i++)
1309 snd_soc_write(codec, WM8993_EQ1 + i, s->config[i]);
1311 snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, eq1);
1317 static int wm8993_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1319 struct snd_soc_codec *codec = codec_dai->codec;
1322 reg = snd_soc_read(codec, WM8993_DAC_CTRL);
1325 reg |= WM8993_DAC_MUTE;
1327 reg &= ~WM8993_DAC_MUTE;
1329 snd_soc_write(codec, WM8993_DAC_CTRL, reg);
1334 static int wm8993_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
1335 unsigned int rx_mask, int slots, int slot_width)
1337 struct snd_soc_codec *codec = dai->codec;
1338 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1342 /* Don't need to validate anything if we're turning off TDM */
1344 wm8993->tdm_slots = 0;
1348 /* Note that we allow configurations we can't handle ourselves -
1349 * for example, we can generate clocks for slots 2 and up even if
1350 * we can't use those slots ourselves.
1352 aif1 |= WM8993_AIFADC_TDM;
1353 aif2 |= WM8993_AIFDAC_TDM;
1359 aif1 |= WM8993_AIFADC_TDM_CHAN;
1370 aif2 |= WM8993_AIFDAC_TDM_CHAN;
1377 wm8993->tdm_width = slot_width;
1378 wm8993->tdm_slots = slots / 2;
1380 snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_1,
1381 WM8993_AIFADC_TDM | WM8993_AIFADC_TDM_CHAN, aif1);
1382 snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_2,
1383 WM8993_AIFDAC_TDM | WM8993_AIFDAC_TDM_CHAN, aif2);
1388 static struct snd_soc_dai_ops wm8993_ops = {
1389 .set_sysclk = wm8993_set_sysclk,
1390 .set_fmt = wm8993_set_dai_fmt,
1391 .hw_params = wm8993_hw_params,
1392 .digital_mute = wm8993_digital_mute,
1393 .set_pll = wm8993_set_fll,
1394 .set_tdm_slot = wm8993_set_tdm_slot,
1397 #define WM8993_RATES SNDRV_PCM_RATE_8000_48000
1399 #define WM8993_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1400 SNDRV_PCM_FMTBIT_S20_3LE |\
1401 SNDRV_PCM_FMTBIT_S24_LE |\
1402 SNDRV_PCM_FMTBIT_S32_LE)
1404 static struct snd_soc_dai_driver wm8993_dai = {
1405 .name = "wm8993-hifi",
1407 .stream_name = "Playback",
1410 .rates = WM8993_RATES,
1411 .formats = WM8993_FORMATS,
1414 .stream_name = "Capture",
1417 .rates = WM8993_RATES,
1418 .formats = WM8993_FORMATS,
1421 .symmetric_rates = 1,
1424 static int wm8993_probe(struct snd_soc_codec *codec)
1426 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1427 struct snd_soc_dapm_context *dapm = &codec->dapm;
1430 wm8993->hubs_data.hp_startup_mode = 1;
1431 wm8993->hubs_data.dcs_codes = -2;
1433 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
1435 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1439 for (i = 0; i < ARRAY_SIZE(wm8993->supplies); i++)
1440 wm8993->supplies[i].supply = wm8993_supply_names[i];
1442 ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8993->supplies),
1445 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
1449 ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
1452 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
1456 val = snd_soc_read(codec, WM8993_SOFTWARE_RESET);
1457 if (val != wm8993_reg_defaults[WM8993_SOFTWARE_RESET]) {
1458 dev_err(codec->dev, "Invalid ID register value %x\n", val);
1463 ret = snd_soc_write(codec, WM8993_SOFTWARE_RESET, 0xffff);
1467 codec->cache_only = 1;
1469 /* By default we're using the output mixers */
1470 wm8993->class_w_users = 2;
1472 /* Latch volume update bits and default ZC on */
1473 snd_soc_update_bits(codec, WM8993_RIGHT_DAC_DIGITAL_VOLUME,
1474 WM8993_DAC_VU, WM8993_DAC_VU);
1475 snd_soc_update_bits(codec, WM8993_RIGHT_ADC_DIGITAL_VOLUME,
1476 WM8993_ADC_VU, WM8993_ADC_VU);
1478 /* Manualy manage the HPOUT sequencing for independent stereo
1480 snd_soc_update_bits(codec, WM8993_ANALOGUE_HP_0,
1481 WM8993_HPOUT1_AUTO_PU, 0);
1483 /* Use automatic clock configuration */
1484 snd_soc_update_bits(codec, WM8993_CLOCKING_4, WM8993_SR_MODE, 0);
1486 wm_hubs_handle_analogue_pdata(codec, wm8993->pdata.lineout1_diff,
1487 wm8993->pdata.lineout2_diff,
1488 wm8993->pdata.lineout1fb,
1489 wm8993->pdata.lineout2fb,
1490 wm8993->pdata.jd_scthr,
1491 wm8993->pdata.jd_thr,
1492 wm8993->pdata.micbias1_lvl,
1493 wm8993->pdata.micbias2_lvl);
1495 ret = wm8993_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1499 snd_soc_add_controls(codec, wm8993_snd_controls,
1500 ARRAY_SIZE(wm8993_snd_controls));
1501 if (wm8993->pdata.num_retune_configs != 0) {
1502 dev_dbg(codec->dev, "Using ReTune Mobile\n");
1504 dev_dbg(codec->dev, "No ReTune Mobile, using normal EQ\n");
1505 snd_soc_add_controls(codec, wm8993_eq_controls,
1506 ARRAY_SIZE(wm8993_eq_controls));
1509 snd_soc_dapm_new_controls(dapm, wm8993_dapm_widgets,
1510 ARRAY_SIZE(wm8993_dapm_widgets));
1511 wm_hubs_add_analogue_controls(codec);
1513 snd_soc_dapm_add_routes(dapm, routes, ARRAY_SIZE(routes));
1514 wm_hubs_add_analogue_routes(codec, wm8993->pdata.lineout1_diff,
1515 wm8993->pdata.lineout2_diff);
1520 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1522 regulator_bulk_free(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1526 static int wm8993_remove(struct snd_soc_codec *codec)
1528 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1530 wm8993_set_bias_level(codec, SND_SOC_BIAS_OFF);
1531 regulator_bulk_free(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1536 static int wm8993_suspend(struct snd_soc_codec *codec, pm_message_t state)
1538 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1539 int fll_fout = wm8993->fll_fout;
1540 int fll_fref = wm8993->fll_fref;
1543 /* Stop the FLL in an orderly fashion */
1544 ret = _wm8993_set_fll(codec, 0, 0, 0, 0);
1546 dev_err(codec->dev, "Failed to stop FLL\n");
1550 wm8993->fll_fout = fll_fout;
1551 wm8993->fll_fref = fll_fref;
1553 wm8993_set_bias_level(codec, SND_SOC_BIAS_OFF);
1558 static int wm8993_resume(struct snd_soc_codec *codec)
1560 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1563 wm8993_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1565 /* Restart the FLL? */
1566 if (wm8993->fll_fout) {
1567 int fll_fout = wm8993->fll_fout;
1568 int fll_fref = wm8993->fll_fref;
1570 wm8993->fll_fref = 0;
1571 wm8993->fll_fout = 0;
1573 ret = _wm8993_set_fll(codec, 0, wm8993->fll_src,
1574 fll_fref, fll_fout);
1576 dev_err(codec->dev, "Failed to restart FLL\n");
1582 #define wm8993_suspend NULL
1583 #define wm8993_resume NULL
1586 static struct snd_soc_codec_driver soc_codec_dev_wm8993 = {
1587 .probe = wm8993_probe,
1588 .remove = wm8993_remove,
1589 .suspend = wm8993_suspend,
1590 .resume = wm8993_resume,
1591 .set_bias_level = wm8993_set_bias_level,
1592 .reg_cache_size = ARRAY_SIZE(wm8993_reg_defaults),
1593 .reg_word_size = sizeof(u16),
1594 .reg_cache_default = wm8993_reg_defaults,
1595 .volatile_register = wm8993_volatile,
1598 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1599 static __devinit int wm8993_i2c_probe(struct i2c_client *i2c,
1600 const struct i2c_device_id *id)
1602 struct wm8993_priv *wm8993;
1605 wm8993 = kzalloc(sizeof(struct wm8993_priv), GFP_KERNEL);
1609 i2c_set_clientdata(i2c, wm8993);
1611 ret = snd_soc_register_codec(&i2c->dev,
1612 &soc_codec_dev_wm8993, &wm8993_dai, 1);
1618 static __devexit int wm8993_i2c_remove(struct i2c_client *client)
1620 snd_soc_unregister_codec(&client->dev);
1621 kfree(i2c_get_clientdata(client));
1625 static const struct i2c_device_id wm8993_i2c_id[] = {
1629 MODULE_DEVICE_TABLE(i2c, wm8993_i2c_id);
1631 static struct i2c_driver wm8993_i2c_driver = {
1633 .name = "wm8993-codec",
1634 .owner = THIS_MODULE,
1636 .probe = wm8993_i2c_probe,
1637 .remove = __devexit_p(wm8993_i2c_remove),
1638 .id_table = wm8993_i2c_id,
1642 static int __init wm8993_modinit(void)
1645 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1646 ret = i2c_add_driver(&wm8993_i2c_driver);
1648 pr_err("WM8993: Unable to register I2C driver: %d\n",
1654 module_init(wm8993_modinit);
1656 static void __exit wm8993_exit(void)
1658 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1659 i2c_del_driver(&wm8993_i2c_driver);
1662 module_exit(wm8993_exit);
1665 MODULE_DESCRIPTION("ASoC WM8993 driver");
1666 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
1667 MODULE_LICENSE("GPL");