2 * wm8903.c -- WM8903 ALSA SoC Audio driver
4 * Copyright 2008 Wolfson Microelectronics
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 * - TDM mode configuration.
14 * - Digital microphone support.
17 #include <linux/module.h>
18 #include <linux/moduleparam.h>
19 #include <linux/init.h>
20 #include <linux/completion.h>
21 #include <linux/delay.h>
23 #include <linux/i2c.h>
24 #include <linux/platform_device.h>
25 #include <linux/slab.h>
26 #include <sound/core.h>
27 #include <sound/jack.h>
28 #include <sound/pcm.h>
29 #include <sound/pcm_params.h>
30 #include <sound/tlv.h>
31 #include <sound/soc.h>
32 #include <sound/soc-dapm.h>
33 #include <sound/initval.h>
34 #include <sound/wm8903.h>
38 /* Register defaults at reset */
39 static u16 wm8903_reg_defaults[] = {
40 0x8903, /* R0 - SW Reset and ID */
41 0x0000, /* R1 - Revision Number */
44 0x0018, /* R4 - Bias Control 0 */
45 0x0000, /* R5 - VMID Control 0 */
46 0x0000, /* R6 - Mic Bias Control 0 */
48 0x0001, /* R8 - Analogue DAC 0 */
50 0x0001, /* R10 - Analogue ADC 0 */
52 0x0000, /* R12 - Power Management 0 */
53 0x0000, /* R13 - Power Management 1 */
54 0x0000, /* R14 - Power Management 2 */
55 0x0000, /* R15 - Power Management 3 */
56 0x0000, /* R16 - Power Management 4 */
57 0x0000, /* R17 - Power Management 5 */
58 0x0000, /* R18 - Power Management 6 */
60 0x0400, /* R20 - Clock Rates 0 */
61 0x0D07, /* R21 - Clock Rates 1 */
62 0x0000, /* R22 - Clock Rates 2 */
64 0x0050, /* R24 - Audio Interface 0 */
65 0x0242, /* R25 - Audio Interface 1 */
66 0x0008, /* R26 - Audio Interface 2 */
67 0x0022, /* R27 - Audio Interface 3 */
70 0x00C0, /* R30 - DAC Digital Volume Left */
71 0x00C0, /* R31 - DAC Digital Volume Right */
72 0x0000, /* R32 - DAC Digital 0 */
73 0x0000, /* R33 - DAC Digital 1 */
76 0x00C0, /* R36 - ADC Digital Volume Left */
77 0x00C0, /* R37 - ADC Digital Volume Right */
78 0x0000, /* R38 - ADC Digital 0 */
79 0x0073, /* R39 - Digital Microphone 0 */
80 0x09BF, /* R40 - DRC 0 */
81 0x3241, /* R41 - DRC 1 */
82 0x0020, /* R42 - DRC 2 */
83 0x0000, /* R43 - DRC 3 */
84 0x0085, /* R44 - Analogue Left Input 0 */
85 0x0085, /* R45 - Analogue Right Input 0 */
86 0x0044, /* R46 - Analogue Left Input 1 */
87 0x0044, /* R47 - Analogue Right Input 1 */
90 0x0008, /* R50 - Analogue Left Mix 0 */
91 0x0004, /* R51 - Analogue Right Mix 0 */
92 0x0000, /* R52 - Analogue Spk Mix Left 0 */
93 0x0000, /* R53 - Analogue Spk Mix Left 1 */
94 0x0000, /* R54 - Analogue Spk Mix Right 0 */
95 0x0000, /* R55 - Analogue Spk Mix Right 1 */
97 0x002D, /* R57 - Analogue OUT1 Left */
98 0x002D, /* R58 - Analogue OUT1 Right */
99 0x0039, /* R59 - Analogue OUT2 Left */
100 0x0039, /* R60 - Analogue OUT2 Right */
102 0x0139, /* R62 - Analogue OUT3 Left */
103 0x0139, /* R63 - Analogue OUT3 Right */
105 0x0000, /* R65 - Analogue SPK Output Control 0 */
107 0x0010, /* R67 - DC Servo 0 */
109 0x00A4, /* R69 - DC Servo 2 */
130 0x0000, /* R90 - Analogue HP 0 */
134 0x0000, /* R94 - Analogue Lineout 0 */
138 0x0000, /* R98 - Charge Pump 0 */
144 0x0000, /* R104 - Class W 0 */
148 0x0000, /* R108 - Write Sequencer 0 */
149 0x0000, /* R109 - Write Sequencer 1 */
150 0x0000, /* R110 - Write Sequencer 2 */
151 0x0000, /* R111 - Write Sequencer 3 */
152 0x0000, /* R112 - Write Sequencer 4 */
154 0x0000, /* R114 - Control Interface */
156 0x00A8, /* R116 - GPIO Control 1 */
157 0x00A8, /* R117 - GPIO Control 2 */
158 0x00A8, /* R118 - GPIO Control 3 */
159 0x0220, /* R119 - GPIO Control 4 */
160 0x01A0, /* R120 - GPIO Control 5 */
161 0x0000, /* R121 - Interrupt Status 1 */
162 0xFFFF, /* R122 - Interrupt Status 1 Mask */
163 0x0000, /* R123 - Interrupt Polarity 1 */
166 0x0000, /* R126 - Interrupt Control */
169 0x0000, /* R129 - Control Interface Test 1 */
189 0x6810, /* R149 - Charge Pump Test 1 */
204 0x0028, /* R164 - Clock Rate Test 4 */
212 0x0000, /* R172 - Analogue Output Bias 0 */
217 u16 reg_cache[ARRAY_SIZE(wm8903_reg_defaults)];
220 struct i2c_client *control_data;
223 /* Reference counts */
228 struct completion wseq;
230 struct snd_soc_jack *mic_jack;
236 struct snd_pcm_substream *master_substream;
237 struct snd_pcm_substream *slave_substream;
240 static int wm8903_volatile_register(unsigned int reg)
243 case WM8903_SW_RESET_AND_ID:
244 case WM8903_REVISION_NUMBER:
245 case WM8903_INTERRUPT_STATUS_1:
246 case WM8903_WRITE_SEQUENCER_4:
254 static int wm8903_run_sequence(struct snd_soc_codec *codec, unsigned int start)
257 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
261 /* Enable the sequencer if it's not already on */
262 reg[0] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_0);
263 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0,
264 reg[0] | WM8903_WSEQ_ENA);
266 dev_dbg(codec->dev, "Starting sequence at %d\n", start);
268 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_3,
269 start | WM8903_WSEQ_START);
271 /* Wait for it to complete. If we have the interrupt wired up then
272 * that will break us out of the poll early.
275 wait_for_completion_timeout(&wm8903->wseq,
276 msecs_to_jiffies(10));
278 reg[4] = snd_soc_read(codec, WM8903_WRITE_SEQUENCER_4);
279 } while (reg[4] & WM8903_WSEQ_BUSY);
281 dev_dbg(codec->dev, "Sequence complete\n");
283 /* Disable the sequencer again if we enabled it */
284 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, reg[0]);
289 static void wm8903_sync_reg_cache(struct snd_soc_codec *codec, u16 *cache)
293 /* There really ought to be something better we can do here :/ */
294 for (i = 0; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
295 cache[i] = codec->hw_read(codec, i);
298 static void wm8903_reset(struct snd_soc_codec *codec)
300 snd_soc_write(codec, WM8903_SW_RESET_AND_ID, 0);
301 memcpy(codec->reg_cache, wm8903_reg_defaults,
302 sizeof(wm8903_reg_defaults));
305 #define WM8903_OUTPUT_SHORT 0x8
306 #define WM8903_OUTPUT_OUT 0x4
307 #define WM8903_OUTPUT_INT 0x2
308 #define WM8903_OUTPUT_IN 0x1
310 static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
311 struct snd_kcontrol *kcontrol, int event)
313 WARN_ON(event != SND_SOC_DAPM_POST_PMU);
320 * Event for headphone and line out amplifier power changes. Special
321 * power up/down sequences are required in order to maximise pop/click
324 static int wm8903_output_event(struct snd_soc_dapm_widget *w,
325 struct snd_kcontrol *kcontrol, int event)
327 struct snd_soc_codec *codec = w->codec;
335 case WM8903_POWER_MANAGEMENT_2:
336 reg = WM8903_ANALOGUE_HP_0;
337 dcs_bit = 0 + w->shift;
339 case WM8903_POWER_MANAGEMENT_3:
340 reg = WM8903_ANALOGUE_LINEOUT_0;
341 dcs_bit = 2 + w->shift;
345 return -EINVAL; /* Spurious warning from some compilers */
357 return -EINVAL; /* Spurious warning from some compilers */
360 if (event & SND_SOC_DAPM_PRE_PMU) {
361 val = snd_soc_read(codec, reg);
363 /* Short the output */
364 val &= ~(WM8903_OUTPUT_SHORT << shift);
365 snd_soc_write(codec, reg, val);
368 if (event & SND_SOC_DAPM_POST_PMU) {
369 val = snd_soc_read(codec, reg);
371 val |= (WM8903_OUTPUT_IN << shift);
372 snd_soc_write(codec, reg, val);
374 val |= (WM8903_OUTPUT_INT << shift);
375 snd_soc_write(codec, reg, val);
377 /* Turn on the output ENA_OUTP */
378 val |= (WM8903_OUTPUT_OUT << shift);
379 snd_soc_write(codec, reg, val);
381 /* Enable the DC servo */
382 dcs_reg = snd_soc_read(codec, WM8903_DC_SERVO_0);
384 snd_soc_write(codec, WM8903_DC_SERVO_0, dcs_reg);
386 /* Remove the short */
387 val |= (WM8903_OUTPUT_SHORT << shift);
388 snd_soc_write(codec, reg, val);
391 if (event & SND_SOC_DAPM_PRE_PMD) {
392 val = snd_soc_read(codec, reg);
394 /* Short the output */
395 val &= ~(WM8903_OUTPUT_SHORT << shift);
396 snd_soc_write(codec, reg, val);
398 /* Disable the DC servo */
399 dcs_reg = snd_soc_read(codec, WM8903_DC_SERVO_0);
401 snd_soc_write(codec, WM8903_DC_SERVO_0, dcs_reg);
403 /* Then disable the intermediate and output stages */
404 val &= ~((WM8903_OUTPUT_OUT | WM8903_OUTPUT_INT |
405 WM8903_OUTPUT_IN) << shift);
406 snd_soc_write(codec, reg, val);
413 * When used with DAC outputs only the WM8903 charge pump supports
414 * operation in class W mode, providing very low power consumption
415 * when used with digital sources. Enable and disable this mode
416 * automatically depending on the mixer configuration.
418 * All the relevant controls are simple switches.
420 static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
421 struct snd_ctl_elem_value *ucontrol)
423 struct snd_soc_dapm_widget *widget = snd_kcontrol_chip(kcontrol);
424 struct snd_soc_codec *codec = widget->codec;
425 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
429 reg = snd_soc_read(codec, WM8903_CLASS_W_0);
431 /* Turn it off if we're about to enable bypass */
432 if (ucontrol->value.integer.value[0]) {
433 if (wm8903->class_w_users == 0) {
434 dev_dbg(codec->dev, "Disabling Class W\n");
435 snd_soc_write(codec, WM8903_CLASS_W_0, reg &
436 ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
438 wm8903->class_w_users++;
441 /* Implement the change */
442 ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
444 /* If we've just disabled the last bypass path turn Class W on */
445 if (!ucontrol->value.integer.value[0]) {
446 if (wm8903->class_w_users == 1) {
447 dev_dbg(codec->dev, "Enabling Class W\n");
448 snd_soc_write(codec, WM8903_CLASS_W_0, reg |
449 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
451 wm8903->class_w_users--;
454 dev_dbg(codec->dev, "Bypass use count now %d\n",
455 wm8903->class_w_users);
460 #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
461 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
462 .info = snd_soc_info_volsw, \
463 .get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \
464 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
467 /* ALSA can only do steps of .01dB */
468 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
470 static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
471 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
473 static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
474 static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
475 static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
476 static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
477 static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
479 static const char *drc_slope_text[] = {
480 "1", "1/2", "1/4", "1/8", "1/16", "0"
483 static const struct soc_enum drc_slope_r0 =
484 SOC_ENUM_SINGLE(WM8903_DRC_2, 3, 6, drc_slope_text);
486 static const struct soc_enum drc_slope_r1 =
487 SOC_ENUM_SINGLE(WM8903_DRC_2, 0, 6, drc_slope_text);
489 static const char *drc_attack_text[] = {
491 "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
492 "46.4ms", "92.8ms", "185.6ms"
495 static const struct soc_enum drc_attack =
496 SOC_ENUM_SINGLE(WM8903_DRC_1, 12, 11, drc_attack_text);
498 static const char *drc_decay_text[] = {
499 "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
503 static const struct soc_enum drc_decay =
504 SOC_ENUM_SINGLE(WM8903_DRC_1, 8, 9, drc_decay_text);
506 static const char *drc_ff_delay_text[] = {
507 "5 samples", "9 samples"
510 static const struct soc_enum drc_ff_delay =
511 SOC_ENUM_SINGLE(WM8903_DRC_0, 5, 2, drc_ff_delay_text);
513 static const char *drc_qr_decay_text[] = {
514 "0.725ms", "1.45ms", "5.8ms"
517 static const struct soc_enum drc_qr_decay =
518 SOC_ENUM_SINGLE(WM8903_DRC_1, 4, 3, drc_qr_decay_text);
520 static const char *drc_smoothing_text[] = {
521 "Low", "Medium", "High"
524 static const struct soc_enum drc_smoothing =
525 SOC_ENUM_SINGLE(WM8903_DRC_0, 11, 3, drc_smoothing_text);
527 static const char *soft_mute_text[] = {
528 "Fast (fs/2)", "Slow (fs/32)"
531 static const struct soc_enum soft_mute =
532 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 10, 2, soft_mute_text);
534 static const char *mute_mode_text[] = {
538 static const struct soc_enum mute_mode =
539 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 9, 2, mute_mode_text);
541 static const char *dac_deemphasis_text[] = {
542 "Disabled", "32kHz", "44.1kHz", "48kHz"
545 static const struct soc_enum dac_deemphasis =
546 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1, 1, 4, dac_deemphasis_text);
548 static const char *companding_text[] = {
552 static const struct soc_enum dac_companding =
553 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 0, 2, companding_text);
555 static const struct soc_enum adc_companding =
556 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0, 2, 2, companding_text);
558 static const char *input_mode_text[] = {
559 "Single-Ended", "Differential Line", "Differential Mic"
562 static const struct soc_enum linput_mode_enum =
563 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 0, 3, input_mode_text);
565 static const struct soc_enum rinput_mode_enum =
566 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 0, 3, input_mode_text);
568 static const char *linput_mux_text[] = {
569 "IN1L", "IN2L", "IN3L"
572 static const struct soc_enum linput_enum =
573 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 2, 3, linput_mux_text);
575 static const struct soc_enum linput_inv_enum =
576 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1, 4, 3, linput_mux_text);
578 static const char *rinput_mux_text[] = {
579 "IN1R", "IN2R", "IN3R"
582 static const struct soc_enum rinput_enum =
583 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 2, 3, rinput_mux_text);
585 static const struct soc_enum rinput_inv_enum =
586 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1, 4, 3, rinput_mux_text);
589 static const char *sidetone_text[] = {
590 "None", "Left", "Right"
593 static const struct soc_enum lsidetone_enum =
594 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 2, 3, sidetone_text);
596 static const struct soc_enum rsidetone_enum =
597 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_0, 0, 3, sidetone_text);
599 static const struct snd_kcontrol_new wm8903_snd_controls[] = {
601 /* Input PGAs - No TLV since the scale depends on PGA mode */
602 SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
604 SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
606 SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
609 SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
611 SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
613 SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
617 SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
618 SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
619 SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
620 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
622 SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
623 SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
624 SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
625 SOC_ENUM("DRC Attack Rate", drc_attack),
626 SOC_ENUM("DRC Decay Rate", drc_decay),
627 SOC_ENUM("DRC FF Delay", drc_ff_delay),
628 SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
629 SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
630 SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
631 SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
632 SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
633 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
634 SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
635 SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
637 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
638 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
639 SOC_ENUM("ADC Companding Mode", adc_companding),
640 SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
642 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
643 12, 0, digital_sidetone_tlv),
646 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
647 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
648 SOC_ENUM("DAC Soft Mute Rate", soft_mute),
649 SOC_ENUM("DAC Mute Mode", mute_mode),
650 SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
651 SOC_ENUM("DAC De-emphasis", dac_deemphasis),
652 SOC_ENUM("DAC Companding Mode", dac_companding),
653 SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
656 SOC_DOUBLE_R("Headphone Switch",
657 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
659 SOC_DOUBLE_R("Headphone ZC Switch",
660 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
662 SOC_DOUBLE_R_TLV("Headphone Volume",
663 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
667 SOC_DOUBLE_R("Line Out Switch",
668 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
670 SOC_DOUBLE_R("Line Out ZC Switch",
671 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
673 SOC_DOUBLE_R_TLV("Line Out Volume",
674 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
678 SOC_DOUBLE_R("Speaker Switch",
679 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
680 SOC_DOUBLE_R("Speaker ZC Switch",
681 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
682 SOC_DOUBLE_R_TLV("Speaker Volume",
683 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
687 static const struct snd_kcontrol_new linput_mode_mux =
688 SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
690 static const struct snd_kcontrol_new rinput_mode_mux =
691 SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
693 static const struct snd_kcontrol_new linput_mux =
694 SOC_DAPM_ENUM("Left Input Mux", linput_enum);
696 static const struct snd_kcontrol_new linput_inv_mux =
697 SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
699 static const struct snd_kcontrol_new rinput_mux =
700 SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
702 static const struct snd_kcontrol_new rinput_inv_mux =
703 SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
705 static const struct snd_kcontrol_new lsidetone_mux =
706 SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
708 static const struct snd_kcontrol_new rsidetone_mux =
709 SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
711 static const struct snd_kcontrol_new left_output_mixer[] = {
712 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
713 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
714 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
715 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
718 static const struct snd_kcontrol_new right_output_mixer[] = {
719 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
720 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
721 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
722 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
725 static const struct snd_kcontrol_new left_speaker_mixer[] = {
726 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
727 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
728 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
729 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
733 static const struct snd_kcontrol_new right_speaker_mixer[] = {
734 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
735 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
736 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
738 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
742 static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
743 SND_SOC_DAPM_INPUT("IN1L"),
744 SND_SOC_DAPM_INPUT("IN1R"),
745 SND_SOC_DAPM_INPUT("IN2L"),
746 SND_SOC_DAPM_INPUT("IN2R"),
747 SND_SOC_DAPM_INPUT("IN3L"),
748 SND_SOC_DAPM_INPUT("IN3R"),
750 SND_SOC_DAPM_OUTPUT("HPOUTL"),
751 SND_SOC_DAPM_OUTPUT("HPOUTR"),
752 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
753 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
754 SND_SOC_DAPM_OUTPUT("LOP"),
755 SND_SOC_DAPM_OUTPUT("LON"),
756 SND_SOC_DAPM_OUTPUT("ROP"),
757 SND_SOC_DAPM_OUTPUT("RON"),
759 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8903_MIC_BIAS_CONTROL_0, 0, 0),
761 SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
762 SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
764 SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
766 SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
767 SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
769 SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
771 SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
772 SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
774 SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6, 1, 0),
775 SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6, 0, 0),
777 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
778 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
780 SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6, 3, 0),
781 SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6, 2, 0),
783 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
784 left_output_mixer, ARRAY_SIZE(left_output_mixer)),
785 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
786 right_output_mixer, ARRAY_SIZE(right_output_mixer)),
788 SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
789 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
790 SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
791 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
793 SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
794 1, 0, NULL, 0, wm8903_output_event,
795 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
796 SND_SOC_DAPM_PRE_PMD),
797 SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2,
798 0, 0, NULL, 0, wm8903_output_event,
799 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
800 SND_SOC_DAPM_PRE_PMD),
802 SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3, 1, 0,
803 NULL, 0, wm8903_output_event,
804 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
805 SND_SOC_DAPM_PRE_PMD),
806 SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3, 0, 0,
807 NULL, 0, wm8903_output_event,
808 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
809 SND_SOC_DAPM_PRE_PMD),
811 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
813 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
816 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
817 wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
818 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
821 static const struct snd_soc_dapm_route intercon[] = {
823 { "Left Input Mux", "IN1L", "IN1L" },
824 { "Left Input Mux", "IN2L", "IN2L" },
825 { "Left Input Mux", "IN3L", "IN3L" },
827 { "Left Input Inverting Mux", "IN1L", "IN1L" },
828 { "Left Input Inverting Mux", "IN2L", "IN2L" },
829 { "Left Input Inverting Mux", "IN3L", "IN3L" },
831 { "Right Input Mux", "IN1R", "IN1R" },
832 { "Right Input Mux", "IN2R", "IN2R" },
833 { "Right Input Mux", "IN3R", "IN3R" },
835 { "Right Input Inverting Mux", "IN1R", "IN1R" },
836 { "Right Input Inverting Mux", "IN2R", "IN2R" },
837 { "Right Input Inverting Mux", "IN3R", "IN3R" },
839 { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
840 { "Left Input Mode Mux", "Differential Line",
842 { "Left Input Mode Mux", "Differential Line",
843 "Left Input Inverting Mux" },
844 { "Left Input Mode Mux", "Differential Mic",
846 { "Left Input Mode Mux", "Differential Mic",
847 "Left Input Inverting Mux" },
849 { "Right Input Mode Mux", "Single-Ended",
850 "Right Input Inverting Mux" },
851 { "Right Input Mode Mux", "Differential Line",
853 { "Right Input Mode Mux", "Differential Line",
854 "Right Input Inverting Mux" },
855 { "Right Input Mode Mux", "Differential Mic",
857 { "Right Input Mode Mux", "Differential Mic",
858 "Right Input Inverting Mux" },
860 { "Left Input PGA", NULL, "Left Input Mode Mux" },
861 { "Right Input PGA", NULL, "Right Input Mode Mux" },
863 { "ADCL", NULL, "Left Input PGA" },
864 { "ADCL", NULL, "CLK_DSP" },
865 { "ADCR", NULL, "Right Input PGA" },
866 { "ADCR", NULL, "CLK_DSP" },
868 { "DACL Sidetone", "Left", "ADCL" },
869 { "DACL Sidetone", "Right", "ADCR" },
870 { "DACR Sidetone", "Left", "ADCL" },
871 { "DACR Sidetone", "Right", "ADCR" },
873 { "DACL", NULL, "DACL Sidetone" },
874 { "DACL", NULL, "CLK_DSP" },
875 { "DACR", NULL, "DACR Sidetone" },
876 { "DACR", NULL, "CLK_DSP" },
878 { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
879 { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
880 { "Left Output Mixer", "DACL Switch", "DACL" },
881 { "Left Output Mixer", "DACR Switch", "DACR" },
883 { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
884 { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
885 { "Right Output Mixer", "DACL Switch", "DACL" },
886 { "Right Output Mixer", "DACR Switch", "DACR" },
888 { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
889 { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
890 { "Left Speaker Mixer", "DACL Switch", "DACL" },
891 { "Left Speaker Mixer", "DACR Switch", "DACR" },
893 { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
894 { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
895 { "Right Speaker Mixer", "DACL Switch", "DACL" },
896 { "Right Speaker Mixer", "DACR Switch", "DACR" },
898 { "Left Line Output PGA", NULL, "Left Output Mixer" },
899 { "Right Line Output PGA", NULL, "Right Output Mixer" },
901 { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
902 { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
904 { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
905 { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
907 { "HPOUTL", NULL, "Left Headphone Output PGA" },
908 { "HPOUTR", NULL, "Right Headphone Output PGA" },
910 { "LINEOUTL", NULL, "Left Line Output PGA" },
911 { "LINEOUTR", NULL, "Right Line Output PGA" },
913 { "LOP", NULL, "Left Speaker PGA" },
914 { "LON", NULL, "Left Speaker PGA" },
916 { "ROP", NULL, "Right Speaker PGA" },
917 { "RON", NULL, "Right Speaker PGA" },
919 { "Left Headphone Output PGA", NULL, "Charge Pump" },
920 { "Right Headphone Output PGA", NULL, "Charge Pump" },
921 { "Left Line Output PGA", NULL, "Charge Pump" },
922 { "Right Line Output PGA", NULL, "Charge Pump" },
925 static int wm8903_add_widgets(struct snd_soc_codec *codec)
927 snd_soc_dapm_new_controls(codec, wm8903_dapm_widgets,
928 ARRAY_SIZE(wm8903_dapm_widgets));
930 snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
935 static int wm8903_set_bias_level(struct snd_soc_codec *codec,
936 enum snd_soc_bias_level level)
941 case SND_SOC_BIAS_ON:
942 case SND_SOC_BIAS_PREPARE:
943 reg = snd_soc_read(codec, WM8903_VMID_CONTROL_0);
944 reg &= ~(WM8903_VMID_RES_MASK);
945 reg |= WM8903_VMID_RES_50K;
946 snd_soc_write(codec, WM8903_VMID_CONTROL_0, reg);
949 case SND_SOC_BIAS_STANDBY:
950 if (codec->bias_level == SND_SOC_BIAS_OFF) {
951 snd_soc_write(codec, WM8903_CLOCK_RATES_2,
954 /* Change DC servo dither level in startup sequence */
955 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_0, 0x11);
956 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_1, 0x1257);
957 snd_soc_write(codec, WM8903_WRITE_SEQUENCER_2, 0x2);
959 wm8903_run_sequence(codec, 0);
960 wm8903_sync_reg_cache(codec, codec->reg_cache);
962 /* Enable low impedence charge pump output */
963 reg = snd_soc_read(codec,
964 WM8903_CONTROL_INTERFACE_TEST_1);
965 snd_soc_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
966 reg | WM8903_TEST_KEY);
967 reg2 = snd_soc_read(codec, WM8903_CHARGE_PUMP_TEST_1);
968 snd_soc_write(codec, WM8903_CHARGE_PUMP_TEST_1,
969 reg2 | WM8903_CP_SW_KELVIN_MODE_MASK);
970 snd_soc_write(codec, WM8903_CONTROL_INTERFACE_TEST_1,
973 /* By default no bypass paths are enabled so
974 * enable Class W support.
976 dev_dbg(codec->dev, "Enabling Class W\n");
977 snd_soc_write(codec, WM8903_CLASS_W_0, reg |
978 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
981 reg = snd_soc_read(codec, WM8903_VMID_CONTROL_0);
982 reg &= ~(WM8903_VMID_RES_MASK);
983 reg |= WM8903_VMID_RES_250K;
984 snd_soc_write(codec, WM8903_VMID_CONTROL_0, reg);
987 case SND_SOC_BIAS_OFF:
988 wm8903_run_sequence(codec, 32);
989 reg = snd_soc_read(codec, WM8903_CLOCK_RATES_2);
990 reg &= ~WM8903_CLK_SYS_ENA;
991 snd_soc_write(codec, WM8903_CLOCK_RATES_2, reg);
995 codec->bias_level = level;
1000 static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1001 int clk_id, unsigned int freq, int dir)
1003 struct snd_soc_codec *codec = codec_dai->codec;
1004 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1006 wm8903->sysclk = freq;
1011 static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
1014 struct snd_soc_codec *codec = codec_dai->codec;
1015 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1017 aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
1018 WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
1020 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1021 case SND_SOC_DAIFMT_CBS_CFS:
1023 case SND_SOC_DAIFMT_CBS_CFM:
1024 aif1 |= WM8903_LRCLK_DIR;
1026 case SND_SOC_DAIFMT_CBM_CFM:
1027 aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
1029 case SND_SOC_DAIFMT_CBM_CFS:
1030 aif1 |= WM8903_BCLK_DIR;
1036 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1037 case SND_SOC_DAIFMT_DSP_A:
1040 case SND_SOC_DAIFMT_DSP_B:
1041 aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
1043 case SND_SOC_DAIFMT_I2S:
1046 case SND_SOC_DAIFMT_RIGHT_J:
1049 case SND_SOC_DAIFMT_LEFT_J:
1055 /* Clock inversion */
1056 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1057 case SND_SOC_DAIFMT_DSP_A:
1058 case SND_SOC_DAIFMT_DSP_B:
1059 /* frame inversion not valid for DSP modes */
1060 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1061 case SND_SOC_DAIFMT_NB_NF:
1063 case SND_SOC_DAIFMT_IB_NF:
1064 aif1 |= WM8903_AIF_BCLK_INV;
1070 case SND_SOC_DAIFMT_I2S:
1071 case SND_SOC_DAIFMT_RIGHT_J:
1072 case SND_SOC_DAIFMT_LEFT_J:
1073 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1074 case SND_SOC_DAIFMT_NB_NF:
1076 case SND_SOC_DAIFMT_IB_IF:
1077 aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
1079 case SND_SOC_DAIFMT_IB_NF:
1080 aif1 |= WM8903_AIF_BCLK_INV;
1082 case SND_SOC_DAIFMT_NB_IF:
1083 aif1 |= WM8903_AIF_LRCLK_INV;
1093 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1098 static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1100 struct snd_soc_codec *codec = codec_dai->codec;
1103 reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1106 reg |= WM8903_DAC_MUTE;
1108 reg &= ~WM8903_DAC_MUTE;
1110 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
1115 /* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
1116 * for optimal performance so we list the lower rates first and match
1117 * on the last match we find. */
1123 } clk_sys_ratios[] = {
1124 { 64, 0x0, 0x0, 1 },
1125 { 68, 0x0, 0x1, 1 },
1126 { 125, 0x0, 0x2, 1 },
1127 { 128, 0x1, 0x0, 1 },
1128 { 136, 0x1, 0x1, 1 },
1129 { 192, 0x2, 0x0, 1 },
1130 { 204, 0x2, 0x1, 1 },
1132 { 64, 0x0, 0x0, 2 },
1133 { 68, 0x0, 0x1, 2 },
1134 { 125, 0x0, 0x2, 2 },
1135 { 128, 0x1, 0x0, 2 },
1136 { 136, 0x1, 0x1, 2 },
1137 { 192, 0x2, 0x0, 2 },
1138 { 204, 0x2, 0x1, 2 },
1140 { 250, 0x2, 0x2, 1 },
1141 { 256, 0x3, 0x0, 1 },
1142 { 272, 0x3, 0x1, 1 },
1143 { 384, 0x4, 0x0, 1 },
1144 { 408, 0x4, 0x1, 1 },
1145 { 375, 0x4, 0x2, 1 },
1146 { 512, 0x5, 0x0, 1 },
1147 { 544, 0x5, 0x1, 1 },
1148 { 500, 0x5, 0x2, 1 },
1149 { 768, 0x6, 0x0, 1 },
1150 { 816, 0x6, 0x1, 1 },
1151 { 750, 0x6, 0x2, 1 },
1152 { 1024, 0x7, 0x0, 1 },
1153 { 1088, 0x7, 0x1, 1 },
1154 { 1000, 0x7, 0x2, 1 },
1155 { 1408, 0x8, 0x0, 1 },
1156 { 1496, 0x8, 0x1, 1 },
1157 { 1536, 0x9, 0x0, 1 },
1158 { 1632, 0x9, 0x1, 1 },
1159 { 1500, 0x9, 0x2, 1 },
1161 { 250, 0x2, 0x2, 2 },
1162 { 256, 0x3, 0x0, 2 },
1163 { 272, 0x3, 0x1, 2 },
1164 { 384, 0x4, 0x0, 2 },
1165 { 408, 0x4, 0x1, 2 },
1166 { 375, 0x4, 0x2, 2 },
1167 { 512, 0x5, 0x0, 2 },
1168 { 544, 0x5, 0x1, 2 },
1169 { 500, 0x5, 0x2, 2 },
1170 { 768, 0x6, 0x0, 2 },
1171 { 816, 0x6, 0x1, 2 },
1172 { 750, 0x6, 0x2, 2 },
1173 { 1024, 0x7, 0x0, 2 },
1174 { 1088, 0x7, 0x1, 2 },
1175 { 1000, 0x7, 0x2, 2 },
1176 { 1408, 0x8, 0x0, 2 },
1177 { 1496, 0x8, 0x1, 2 },
1178 { 1536, 0x9, 0x0, 2 },
1179 { 1632, 0x9, 0x1, 2 },
1180 { 1500, 0x9, 0x2, 2 },
1183 /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
1207 /* Sample rates for DSP */
1211 } sample_rates[] = {
1226 static int wm8903_startup(struct snd_pcm_substream *substream,
1227 struct snd_soc_dai *dai)
1229 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1230 struct snd_soc_codec *codec = rtd->codec;
1231 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1232 struct snd_pcm_runtime *master_runtime;
1234 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1235 wm8903->playback_active++;
1237 wm8903->capture_active++;
1239 /* The DAI has shared clocks so if we already have a playback or
1240 * capture going then constrain this substream to match it.
1242 if (wm8903->master_substream) {
1243 master_runtime = wm8903->master_substream->runtime;
1245 dev_dbg(codec->dev, "Constraining to %d bits\n",
1246 master_runtime->sample_bits);
1248 snd_pcm_hw_constraint_minmax(substream->runtime,
1249 SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
1250 master_runtime->sample_bits,
1251 master_runtime->sample_bits);
1253 wm8903->slave_substream = substream;
1255 wm8903->master_substream = substream;
1260 static void wm8903_shutdown(struct snd_pcm_substream *substream,
1261 struct snd_soc_dai *dai)
1263 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1264 struct snd_soc_codec *codec = rtd->codec;
1265 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1267 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
1268 wm8903->playback_active--;
1270 wm8903->capture_active--;
1272 if (wm8903->master_substream == substream)
1273 wm8903->master_substream = wm8903->slave_substream;
1275 wm8903->slave_substream = NULL;
1278 static int wm8903_hw_params(struct snd_pcm_substream *substream,
1279 struct snd_pcm_hw_params *params,
1280 struct snd_soc_dai *dai)
1282 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1283 struct snd_soc_codec *codec =rtd->codec;
1284 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1285 int fs = params_rate(params);
1295 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1296 u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
1297 u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
1298 u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
1299 u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
1300 u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1302 if (substream == wm8903->slave_substream) {
1303 dev_dbg(codec->dev, "Ignoring hw_params for slave substream\n");
1307 /* Enable sloping stopband filter for low sample rates */
1309 dac_digital1 |= WM8903_DAC_SB_FILT;
1311 dac_digital1 &= ~WM8903_DAC_SB_FILT;
1313 /* Configure sample rate logic for DSP - choose nearest rate */
1315 best_val = abs(sample_rates[dsp_config].rate - fs);
1316 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1317 cur_val = abs(sample_rates[i].rate - fs);
1318 if (cur_val <= best_val) {
1324 /* Constraints should stop us hitting this but let's make sure */
1325 if (wm8903->capture_active)
1326 switch (sample_rates[dsp_config].rate) {
1329 dev_err(codec->dev, "%dHz unsupported by ADC\n",
1337 dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
1338 clock1 &= ~WM8903_SAMPLE_RATE_MASK;
1339 clock1 |= sample_rates[dsp_config].value;
1341 aif1 &= ~WM8903_AIF_WL_MASK;
1343 switch (params_format(params)) {
1344 case SNDRV_PCM_FORMAT_S16_LE:
1347 case SNDRV_PCM_FORMAT_S20_3LE:
1351 case SNDRV_PCM_FORMAT_S24_LE:
1355 case SNDRV_PCM_FORMAT_S32_LE:
1363 dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
1364 wm8903->sysclk, fs);
1366 /* We may not have an MCLK which allows us to generate exactly
1367 * the clock we want, particularly with USB derived inputs, so
1371 best_val = abs((wm8903->sysclk /
1372 (clk_sys_ratios[0].mclk_div *
1373 clk_sys_ratios[0].div)) - fs);
1374 for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
1375 cur_val = abs((wm8903->sysclk /
1376 (clk_sys_ratios[i].mclk_div *
1377 clk_sys_ratios[i].div)) - fs);
1379 if (cur_val <= best_val) {
1385 if (clk_sys_ratios[clk_config].mclk_div == 2) {
1386 clock0 |= WM8903_MCLKDIV2;
1387 clk_sys = wm8903->sysclk / 2;
1389 clock0 &= ~WM8903_MCLKDIV2;
1390 clk_sys = wm8903->sysclk;
1393 clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
1394 WM8903_CLK_SYS_MODE_MASK);
1395 clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
1396 clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
1398 dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1399 clk_sys_ratios[clk_config].rate,
1400 clk_sys_ratios[clk_config].mode,
1401 clk_sys_ratios[clk_config].div);
1403 dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
1405 /* We may not get quite the right frequency if using
1406 * approximate clocks so look for the closest match that is
1407 * higher than the target (we need to ensure that there enough
1408 * BCLKs to clock out the samples).
1411 best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
1413 while (i < ARRAY_SIZE(bclk_divs)) {
1414 cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
1415 if (cur_val < 0) /* BCLK table is sorted */
1422 aif2 &= ~WM8903_BCLK_DIV_MASK;
1423 aif3 &= ~WM8903_LRCLK_RATE_MASK;
1425 dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1426 bclk_divs[bclk_div].ratio / 10, bclk,
1427 (clk_sys * 10) / bclk_divs[bclk_div].ratio);
1429 aif2 |= bclk_divs[bclk_div].div;
1432 snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
1433 snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
1434 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1435 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
1436 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
1437 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
1443 * wm8903_mic_detect - Enable microphone detection via the WM8903 IRQ
1445 * @codec: WM8903 codec
1446 * @jack: jack to report detection events on
1447 * @det: value to report for presence detection
1448 * @shrt: value to report for short detection
1450 * Enable microphone detection via IRQ on the WM8903. If GPIOs are
1451 * being used to bring out signals to the processor then only platform
1452 * data configuration is needed for WM8903 and processor GPIOs should
1453 * be configured using snd_soc_jack_add_gpios() instead.
1455 * The current threasholds for detection should be configured using
1456 * micdet_cfg in the platform data. Using this function will force on
1457 * the microphone bias for the device.
1459 int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
1462 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1463 int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
1465 dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
1468 /* Store the configuration */
1469 wm8903->mic_jack = jack;
1470 wm8903->mic_det = det;
1471 wm8903->mic_short = shrt;
1473 /* Enable interrupts we've got a report configured for */
1475 irq_mask &= ~WM8903_MICDET_EINT;
1477 irq_mask &= ~WM8903_MICSHRT_EINT;
1479 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1480 WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
1484 /* Enable mic detection, this may not have been set through
1485 * platform data (eg, if the defaults are OK). */
1486 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1487 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1488 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1489 WM8903_MICDET_ENA, WM8903_MICDET_ENA);
1491 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1492 WM8903_MICDET_ENA, 0);
1497 EXPORT_SYMBOL_GPL(wm8903_mic_detect);
1499 static irqreturn_t wm8903_irq(int irq, void *data)
1501 struct snd_soc_codec *codec = data;
1502 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1506 int mask = ~snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1_MASK);
1508 int_val = snd_soc_read(codec, WM8903_INTERRUPT_STATUS_1) & mask;
1510 if (int_val & WM8903_WSEQ_BUSY_EINT) {
1511 dev_dbg(codec->dev, "Write sequencer done\n");
1512 complete(&wm8903->wseq);
1516 * The rest is microphone jack detection. We need to manually
1517 * invert the polarity of the interrupt after each event - to
1518 * simplify the code keep track of the last state we reported
1519 * and just invert the relevant bits in both the report and
1520 * the polarity register.
1522 mic_report = wm8903->mic_last_report;
1523 int_pol = snd_soc_read(codec, WM8903_INTERRUPT_POLARITY_1);
1525 if (int_val & WM8903_MICSHRT_EINT) {
1526 dev_dbg(codec->dev, "Microphone short (pol=%x)\n", int_pol);
1528 mic_report ^= wm8903->mic_short;
1529 int_pol ^= WM8903_MICSHRT_INV;
1532 if (int_val & WM8903_MICDET_EINT) {
1533 dev_dbg(codec->dev, "Microphone detect (pol=%x)\n", int_pol);
1535 mic_report ^= wm8903->mic_det;
1536 int_pol ^= WM8903_MICDET_INV;
1538 msleep(wm8903->mic_delay);
1541 snd_soc_update_bits(codec, WM8903_INTERRUPT_POLARITY_1,
1542 WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
1544 snd_soc_jack_report(wm8903->mic_jack, mic_report,
1545 wm8903->mic_short | wm8903->mic_det);
1547 wm8903->mic_last_report = mic_report;
1552 #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1553 SNDRV_PCM_RATE_11025 | \
1554 SNDRV_PCM_RATE_16000 | \
1555 SNDRV_PCM_RATE_22050 | \
1556 SNDRV_PCM_RATE_32000 | \
1557 SNDRV_PCM_RATE_44100 | \
1558 SNDRV_PCM_RATE_48000 | \
1559 SNDRV_PCM_RATE_88200 | \
1560 SNDRV_PCM_RATE_96000)
1562 #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1563 SNDRV_PCM_RATE_11025 | \
1564 SNDRV_PCM_RATE_16000 | \
1565 SNDRV_PCM_RATE_22050 | \
1566 SNDRV_PCM_RATE_32000 | \
1567 SNDRV_PCM_RATE_44100 | \
1568 SNDRV_PCM_RATE_48000)
1570 #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1571 SNDRV_PCM_FMTBIT_S20_3LE |\
1572 SNDRV_PCM_FMTBIT_S24_LE)
1574 static struct snd_soc_dai_ops wm8903_dai_ops = {
1575 .startup = wm8903_startup,
1576 .shutdown = wm8903_shutdown,
1577 .hw_params = wm8903_hw_params,
1578 .digital_mute = wm8903_digital_mute,
1579 .set_fmt = wm8903_set_dai_fmt,
1580 .set_sysclk = wm8903_set_dai_sysclk,
1583 static struct snd_soc_dai_driver wm8903_dai = {
1584 .name = "wm8903-hifi",
1586 .stream_name = "Playback",
1589 .rates = WM8903_PLAYBACK_RATES,
1590 .formats = WM8903_FORMATS,
1593 .stream_name = "Capture",
1596 .rates = WM8903_CAPTURE_RATES,
1597 .formats = WM8903_FORMATS,
1599 .ops = &wm8903_dai_ops,
1600 .symmetric_rates = 1,
1603 static int wm8903_suspend(struct snd_soc_codec *codec, pm_message_t state)
1605 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1610 static int wm8903_resume(struct snd_soc_codec *codec)
1613 u16 *reg_cache = codec->reg_cache;
1614 u16 *tmp_cache = kmemdup(reg_cache, sizeof(wm8903_reg_defaults),
1617 /* Bring the codec back up to standby first to minimise pop/clicks */
1618 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1620 /* Sync back everything else */
1622 for (i = 2; i < ARRAY_SIZE(wm8903_reg_defaults); i++)
1623 if (tmp_cache[i] != reg_cache[i])
1624 snd_soc_write(codec, i, tmp_cache[i]);
1627 dev_err(codec->dev, "Failed to allocate temporary cache\n");
1633 static int wm8903_probe(struct snd_soc_codec *codec)
1635 struct wm8903_platform_data *pdata = dev_get_platdata(codec->dev);
1636 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1638 int trigger, irq_pol;
1641 init_completion(&wm8903->wseq);
1642 codec->control_data = wm8903->control_data;
1644 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
1646 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1650 val = snd_soc_read(codec, WM8903_SW_RESET_AND_ID);
1651 if (val != wm8903_reg_defaults[WM8903_SW_RESET_AND_ID]) {
1653 "Device with ID register %x is not a WM8903\n", val);
1657 val = snd_soc_read(codec, WM8903_REVISION_NUMBER);
1658 dev_info(codec->dev, "WM8903 revision %d\n",
1659 val & WM8903_CHIP_REV_MASK);
1661 wm8903_reset(codec);
1663 /* Set up GPIOs and microphone detection */
1665 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
1666 if (!pdata->gpio_cfg[i])
1669 snd_soc_write(codec, WM8903_GPIO_CONTROL_1 + i,
1670 pdata->gpio_cfg[i] & 0xffff);
1673 snd_soc_write(codec, WM8903_MIC_BIAS_CONTROL_0,
1676 /* Microphone detection needs the WSEQ clock */
1677 if (pdata->micdet_cfg)
1678 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1679 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1681 wm8903->mic_delay = pdata->micdet_delay;
1685 if (pdata && pdata->irq_active_low) {
1686 trigger = IRQF_TRIGGER_LOW;
1687 irq_pol = WM8903_IRQ_POL;
1689 trigger = IRQF_TRIGGER_HIGH;
1693 snd_soc_update_bits(codec, WM8903_INTERRUPT_CONTROL,
1694 WM8903_IRQ_POL, irq_pol);
1696 ret = request_threaded_irq(wm8903->irq, NULL, wm8903_irq,
1697 trigger | IRQF_ONESHOT,
1700 dev_err(codec->dev, "Failed to request IRQ: %d\n",
1705 /* Enable write sequencer interrupts */
1706 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1707 WM8903_IM_WSEQ_BUSY_EINT, 0);
1710 /* power on device */
1711 wm8903_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1713 /* Latch volume update bits */
1714 val = snd_soc_read(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT);
1715 val |= WM8903_ADCVU;
1716 snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_LEFT, val);
1717 snd_soc_write(codec, WM8903_ADC_DIGITAL_VOLUME_RIGHT, val);
1719 val = snd_soc_read(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT);
1720 val |= WM8903_DACVU;
1721 snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_LEFT, val);
1722 snd_soc_write(codec, WM8903_DAC_DIGITAL_VOLUME_RIGHT, val);
1724 val = snd_soc_read(codec, WM8903_ANALOGUE_OUT1_LEFT);
1725 val |= WM8903_HPOUTVU;
1726 snd_soc_write(codec, WM8903_ANALOGUE_OUT1_LEFT, val);
1727 snd_soc_write(codec, WM8903_ANALOGUE_OUT1_RIGHT, val);
1729 val = snd_soc_read(codec, WM8903_ANALOGUE_OUT2_LEFT);
1730 val |= WM8903_LINEOUTVU;
1731 snd_soc_write(codec, WM8903_ANALOGUE_OUT2_LEFT, val);
1732 snd_soc_write(codec, WM8903_ANALOGUE_OUT2_RIGHT, val);
1734 val = snd_soc_read(codec, WM8903_ANALOGUE_OUT3_LEFT);
1735 val |= WM8903_SPKVU;
1736 snd_soc_write(codec, WM8903_ANALOGUE_OUT3_LEFT, val);
1737 snd_soc_write(codec, WM8903_ANALOGUE_OUT3_RIGHT, val);
1739 /* Enable DAC soft mute by default */
1740 val = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1741 val |= WM8903_DAC_MUTEMODE;
1742 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, val);
1744 snd_soc_add_controls(codec, wm8903_snd_controls,
1745 ARRAY_SIZE(wm8903_snd_controls));
1746 wm8903_add_widgets(codec);
1751 /* power down chip */
1752 static int wm8903_remove(struct snd_soc_codec *codec)
1754 wm8903_set_bias_level(codec, SND_SOC_BIAS_OFF);
1758 static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
1759 .probe = wm8903_probe,
1760 .remove = wm8903_remove,
1761 .suspend = wm8903_suspend,
1762 .resume = wm8903_resume,
1763 .set_bias_level = wm8903_set_bias_level,
1764 .reg_cache_size = ARRAY_SIZE(wm8903_reg_defaults),
1765 .reg_word_size = sizeof(u16),
1766 .reg_cache_default = wm8903_reg_defaults,
1767 .volatile_register = wm8903_volatile_register,
1770 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1771 static __devinit int wm8903_i2c_probe(struct i2c_client *i2c,
1772 const struct i2c_device_id *id)
1774 struct wm8903_priv *wm8903;
1777 wm8903 = kzalloc(sizeof(struct wm8903_priv), GFP_KERNEL);
1781 i2c_set_clientdata(i2c, wm8903);
1782 wm8903->control_data = i2c;
1783 wm8903->irq = i2c->irq;
1785 ret = snd_soc_register_codec(&i2c->dev,
1786 &soc_codec_dev_wm8903, &wm8903_dai, 1);
1792 static __devexit int wm8903_i2c_remove(struct i2c_client *client)
1794 snd_soc_unregister_codec(&client->dev);
1795 kfree(i2c_get_clientdata(client));
1799 static const struct i2c_device_id wm8903_i2c_id[] = {
1803 MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
1805 static struct i2c_driver wm8903_i2c_driver = {
1807 .name = "wm8903-codec",
1808 .owner = THIS_MODULE,
1810 .probe = wm8903_i2c_probe,
1811 .remove = __devexit_p(wm8903_i2c_remove),
1812 .id_table = wm8903_i2c_id,
1816 static int __init wm8903_modinit(void)
1819 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1820 ret = i2c_add_driver(&wm8903_i2c_driver);
1822 printk(KERN_ERR "Failed to register wm8903 I2C driver: %d\n",
1828 module_init(wm8903_modinit);
1830 static void __exit wm8903_exit(void)
1832 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1833 i2c_del_driver(&wm8903_i2c_driver);
1836 module_exit(wm8903_exit);
1838 MODULE_DESCRIPTION("ASoC WM8903 driver");
1839 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
1840 MODULE_LICENSE("GPL");