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.
15 * - Digital microphone support.
16 * - Interrupt support (mic detect and sequencer).
19 #include <linux/module.h>
20 #include <linux/moduleparam.h>
21 #include <linux/init.h>
22 #include <linux/delay.h>
24 #include <linux/i2c.h>
25 #include <linux/platform_device.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/tlv.h>
30 #include <sound/soc.h>
31 #include <sound/soc-dapm.h>
32 #include <sound/initval.h>
36 /* Register defaults at reset */
37 static u16 wm8903_reg_defaults
[] = {
38 0x8903, /* R0 - SW Reset and ID */
39 0x0000, /* R1 - Revision Number */
42 0x0018, /* R4 - Bias Control 0 */
43 0x0000, /* R5 - VMID Control 0 */
44 0x0000, /* R6 - Mic Bias Control 0 */
46 0x0001, /* R8 - Analogue DAC 0 */
48 0x0001, /* R10 - Analogue ADC 0 */
50 0x0000, /* R12 - Power Management 0 */
51 0x0000, /* R13 - Power Management 1 */
52 0x0000, /* R14 - Power Management 2 */
53 0x0000, /* R15 - Power Management 3 */
54 0x0000, /* R16 - Power Management 4 */
55 0x0000, /* R17 - Power Management 5 */
56 0x0000, /* R18 - Power Management 6 */
58 0x0400, /* R20 - Clock Rates 0 */
59 0x0D07, /* R21 - Clock Rates 1 */
60 0x0000, /* R22 - Clock Rates 2 */
62 0x0050, /* R24 - Audio Interface 0 */
63 0x0242, /* R25 - Audio Interface 1 */
64 0x0008, /* R26 - Audio Interface 2 */
65 0x0022, /* R27 - Audio Interface 3 */
68 0x00C0, /* R30 - DAC Digital Volume Left */
69 0x00C0, /* R31 - DAC Digital Volume Right */
70 0x0000, /* R32 - DAC Digital 0 */
71 0x0000, /* R33 - DAC Digital 1 */
74 0x00C0, /* R36 - ADC Digital Volume Left */
75 0x00C0, /* R37 - ADC Digital Volume Right */
76 0x0000, /* R38 - ADC Digital 0 */
77 0x0073, /* R39 - Digital Microphone 0 */
78 0x09BF, /* R40 - DRC 0 */
79 0x3241, /* R41 - DRC 1 */
80 0x0020, /* R42 - DRC 2 */
81 0x0000, /* R43 - DRC 3 */
82 0x0085, /* R44 - Analogue Left Input 0 */
83 0x0085, /* R45 - Analogue Right Input 0 */
84 0x0044, /* R46 - Analogue Left Input 1 */
85 0x0044, /* R47 - Analogue Right Input 1 */
88 0x0008, /* R50 - Analogue Left Mix 0 */
89 0x0004, /* R51 - Analogue Right Mix 0 */
90 0x0000, /* R52 - Analogue Spk Mix Left 0 */
91 0x0000, /* R53 - Analogue Spk Mix Left 1 */
92 0x0000, /* R54 - Analogue Spk Mix Right 0 */
93 0x0000, /* R55 - Analogue Spk Mix Right 1 */
95 0x002D, /* R57 - Analogue OUT1 Left */
96 0x002D, /* R58 - Analogue OUT1 Right */
97 0x0039, /* R59 - Analogue OUT2 Left */
98 0x0039, /* R60 - Analogue OUT2 Right */
100 0x0139, /* R62 - Analogue OUT3 Left */
101 0x0139, /* R63 - Analogue OUT3 Right */
103 0x0000, /* R65 - Analogue SPK Output Control 0 */
105 0x0010, /* R67 - DC Servo 0 */
107 0x00A4, /* R69 - DC Servo 2 */
128 0x0000, /* R90 - Analogue HP 0 */
132 0x0000, /* R94 - Analogue Lineout 0 */
136 0x0000, /* R98 - Charge Pump 0 */
142 0x0000, /* R104 - Class W 0 */
146 0x0000, /* R108 - Write Sequencer 0 */
147 0x0000, /* R109 - Write Sequencer 1 */
148 0x0000, /* R110 - Write Sequencer 2 */
149 0x0000, /* R111 - Write Sequencer 3 */
150 0x0000, /* R112 - Write Sequencer 4 */
152 0x0000, /* R114 - Control Interface */
154 0x00A8, /* R116 - GPIO Control 1 */
155 0x00A8, /* R117 - GPIO Control 2 */
156 0x00A8, /* R118 - GPIO Control 3 */
157 0x0220, /* R119 - GPIO Control 4 */
158 0x01A0, /* R120 - GPIO Control 5 */
159 0x0000, /* R121 - Interrupt Status 1 */
160 0xFFFF, /* R122 - Interrupt Status 1 Mask */
161 0x0000, /* R123 - Interrupt Polarity 1 */
164 0x0000, /* R126 - Interrupt Control */
167 0x0000, /* R129 - Control Interface Test 1 */
187 0x6810, /* R149 - Charge Pump Test 1 */
202 0x0028, /* R164 - Clock Rate Test 4 */
210 0x0000, /* R172 - Analogue Output Bias 0 */
214 struct snd_soc_codec codec
;
215 u16 reg_cache
[ARRAY_SIZE(wm8903_reg_defaults
)];
219 /* Reference counts */
220 int charge_pump_users
;
225 struct snd_pcm_substream
*master_substream
;
226 struct snd_pcm_substream
*slave_substream
;
230 static unsigned int wm8903_read_reg_cache(struct snd_soc_codec
*codec
,
233 u16
*cache
= codec
->reg_cache
;
235 BUG_ON(reg
>= ARRAY_SIZE(wm8903_reg_defaults
));
240 static unsigned int wm8903_hw_read(struct snd_soc_codec
*codec
, u8 reg
)
242 struct i2c_msg xfer
[2];
245 struct i2c_client
*client
= codec
->control_data
;
248 xfer
[0].addr
= client
->addr
;
254 xfer
[1].addr
= client
->addr
;
255 xfer
[1].flags
= I2C_M_RD
;
257 xfer
[1].buf
= (u8
*)&data
;
259 ret
= i2c_transfer(client
->adapter
, xfer
, 2);
261 pr_err("i2c_transfer returned %d\n", ret
);
265 return (data
>> 8) | ((data
& 0xff) << 8);
268 static unsigned int wm8903_read(struct snd_soc_codec
*codec
,
272 case WM8903_SW_RESET_AND_ID
:
273 case WM8903_REVISION_NUMBER
:
274 case WM8903_INTERRUPT_STATUS_1
:
275 case WM8903_WRITE_SEQUENCER_4
:
276 return wm8903_hw_read(codec
, reg
);
279 return wm8903_read_reg_cache(codec
, reg
);
283 static void wm8903_write_reg_cache(struct snd_soc_codec
*codec
,
284 u16 reg
, unsigned int value
)
286 u16
*cache
= codec
->reg_cache
;
288 BUG_ON(reg
>= ARRAY_SIZE(wm8903_reg_defaults
));
291 case WM8903_SW_RESET_AND_ID
:
292 case WM8903_REVISION_NUMBER
:
301 static int wm8903_write(struct snd_soc_codec
*codec
, unsigned int reg
,
306 wm8903_write_reg_cache(codec
, reg
, value
);
308 /* Data format is 1 byte of address followed by 2 bytes of data */
310 data
[1] = (value
>> 8) & 0xff;
311 data
[2] = value
& 0xff;
313 if (codec
->hw_write(codec
->control_data
, data
, 3) == 2)
319 static int wm8903_run_sequence(struct snd_soc_codec
*codec
, unsigned int start
)
322 struct i2c_client
*i2c
= codec
->control_data
;
326 /* Enable the sequencer */
327 reg
[0] = wm8903_read(codec
, WM8903_WRITE_SEQUENCER_0
);
328 reg
[0] |= WM8903_WSEQ_ENA
;
329 wm8903_write(codec
, WM8903_WRITE_SEQUENCER_0
, reg
[0]);
331 dev_dbg(&i2c
->dev
, "Starting sequence at %d\n", start
);
333 wm8903_write(codec
, WM8903_WRITE_SEQUENCER_3
,
334 start
| WM8903_WSEQ_START
);
336 /* Wait for it to complete. If we have the interrupt wired up then
337 * we could block waiting for an interrupt, though polling may still
338 * be desirable for diagnostic purposes.
343 reg
[4] = wm8903_read(codec
, WM8903_WRITE_SEQUENCER_4
);
344 } while (reg
[4] & WM8903_WSEQ_BUSY
);
346 dev_dbg(&i2c
->dev
, "Sequence complete\n");
348 /* Disable the sequencer again */
349 wm8903_write(codec
, WM8903_WRITE_SEQUENCER_0
,
350 reg
[0] & ~WM8903_WSEQ_ENA
);
355 static void wm8903_sync_reg_cache(struct snd_soc_codec
*codec
, u16
*cache
)
359 /* There really ought to be something better we can do here :/ */
360 for (i
= 0; i
< ARRAY_SIZE(wm8903_reg_defaults
); i
++)
361 cache
[i
] = wm8903_hw_read(codec
, i
);
364 static void wm8903_reset(struct snd_soc_codec
*codec
)
366 wm8903_write(codec
, WM8903_SW_RESET_AND_ID
, 0);
367 memcpy(codec
->reg_cache
, wm8903_reg_defaults
,
368 sizeof(wm8903_reg_defaults
));
371 #define WM8903_OUTPUT_SHORT 0x8
372 #define WM8903_OUTPUT_OUT 0x4
373 #define WM8903_OUTPUT_INT 0x2
374 #define WM8903_OUTPUT_IN 0x1
377 * Event for headphone and line out amplifier power changes. Special
378 * power up/down sequences are required in order to maximise pop/click
381 static int wm8903_output_event(struct snd_soc_dapm_widget
*w
,
382 struct snd_kcontrol
*kcontrol
, int event
)
384 struct snd_soc_codec
*codec
= w
->codec
;
385 struct wm8903_priv
*wm8903
= codec
->private_data
;
386 struct i2c_client
*i2c
= codec
->control_data
;
390 u16 cp_reg
= wm8903_read(codec
, WM8903_CHARGE_PUMP_0
);
393 case WM8903_POWER_MANAGEMENT_2
:
394 reg
= WM8903_ANALOGUE_HP_0
;
396 case WM8903_POWER_MANAGEMENT_3
:
397 reg
= WM8903_ANALOGUE_LINEOUT_0
;
401 return -EINVAL
; /* Spurious warning from some compilers */
413 return -EINVAL
; /* Spurious warning from some compilers */
416 if (event
& SND_SOC_DAPM_PRE_PMU
) {
417 val
= wm8903_read(codec
, reg
);
419 /* Short the output */
420 val
&= ~(WM8903_OUTPUT_SHORT
<< shift
);
421 wm8903_write(codec
, reg
, val
);
423 wm8903
->charge_pump_users
++;
425 dev_dbg(&i2c
->dev
, "Charge pump use count now %d\n",
426 wm8903
->charge_pump_users
);
428 if (wm8903
->charge_pump_users
== 1) {
429 dev_dbg(&i2c
->dev
, "Enabling charge pump\n");
430 wm8903_write(codec
, WM8903_CHARGE_PUMP_0
,
431 cp_reg
| WM8903_CP_ENA
);
436 if (event
& SND_SOC_DAPM_POST_PMU
) {
437 val
= wm8903_read(codec
, reg
);
439 val
|= (WM8903_OUTPUT_IN
<< shift
);
440 wm8903_write(codec
, reg
, val
);
442 val
|= (WM8903_OUTPUT_INT
<< shift
);
443 wm8903_write(codec
, reg
, val
);
445 /* Turn on the output ENA_OUTP */
446 val
|= (WM8903_OUTPUT_OUT
<< shift
);
447 wm8903_write(codec
, reg
, val
);
449 /* Remove the short */
450 val
|= (WM8903_OUTPUT_SHORT
<< shift
);
451 wm8903_write(codec
, reg
, val
);
454 if (event
& SND_SOC_DAPM_PRE_PMD
) {
455 val
= wm8903_read(codec
, reg
);
457 /* Short the output */
458 val
&= ~(WM8903_OUTPUT_SHORT
<< shift
);
459 wm8903_write(codec
, reg
, val
);
461 /* Then disable the intermediate and output stages */
462 val
&= ~((WM8903_OUTPUT_OUT
| WM8903_OUTPUT_INT
|
463 WM8903_OUTPUT_IN
) << shift
);
464 wm8903_write(codec
, reg
, val
);
467 if (event
& SND_SOC_DAPM_POST_PMD
) {
468 wm8903
->charge_pump_users
--;
470 dev_dbg(&i2c
->dev
, "Charge pump use count now %d\n",
471 wm8903
->charge_pump_users
);
473 if (wm8903
->charge_pump_users
== 0) {
474 dev_dbg(&i2c
->dev
, "Disabling charge pump\n");
475 wm8903_write(codec
, WM8903_CHARGE_PUMP_0
,
476 cp_reg
& ~WM8903_CP_ENA
);
484 * When used with DAC outputs only the WM8903 charge pump supports
485 * operation in class W mode, providing very low power consumption
486 * when used with digital sources. Enable and disable this mode
487 * automatically depending on the mixer configuration.
489 * All the relevant controls are simple switches.
491 static int wm8903_class_w_put(struct snd_kcontrol
*kcontrol
,
492 struct snd_ctl_elem_value
*ucontrol
)
494 struct snd_soc_dapm_widget
*widget
= snd_kcontrol_chip(kcontrol
);
495 struct snd_soc_codec
*codec
= widget
->codec
;
496 struct wm8903_priv
*wm8903
= codec
->private_data
;
497 struct i2c_client
*i2c
= codec
->control_data
;
501 reg
= wm8903_read(codec
, WM8903_CLASS_W_0
);
503 /* Turn it off if we're about to enable bypass */
504 if (ucontrol
->value
.integer
.value
[0]) {
505 if (wm8903
->class_w_users
== 0) {
506 dev_dbg(&i2c
->dev
, "Disabling Class W\n");
507 wm8903_write(codec
, WM8903_CLASS_W_0
, reg
&
508 ~(WM8903_CP_DYN_FREQ
| WM8903_CP_DYN_V
));
510 wm8903
->class_w_users
++;
513 /* Implement the change */
514 ret
= snd_soc_dapm_put_volsw(kcontrol
, ucontrol
);
516 /* If we've just disabled the last bypass path turn Class W on */
517 if (!ucontrol
->value
.integer
.value
[0]) {
518 if (wm8903
->class_w_users
== 1) {
519 dev_dbg(&i2c
->dev
, "Enabling Class W\n");
520 wm8903_write(codec
, WM8903_CLASS_W_0
, reg
|
521 WM8903_CP_DYN_FREQ
| WM8903_CP_DYN_V
);
523 wm8903
->class_w_users
--;
526 dev_dbg(&i2c
->dev
, "Bypass use count now %d\n",
527 wm8903
->class_w_users
);
532 #define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
533 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
534 .info = snd_soc_info_volsw, \
535 .get = snd_soc_dapm_get_volsw, .put = wm8903_class_w_put, \
536 .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) }
539 /* ALSA can only do steps of .01dB */
540 static const DECLARE_TLV_DB_SCALE(digital_tlv
, -7200, 75, 1);
542 static const DECLARE_TLV_DB_SCALE(out_tlv
, -5700, 100, 0);
544 static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh
, 0, 75, 0);
545 static const DECLARE_TLV_DB_SCALE(drc_tlv_amp
, -2250, 75, 0);
546 static const DECLARE_TLV_DB_SCALE(drc_tlv_min
, 0, 600, 0);
547 static const DECLARE_TLV_DB_SCALE(drc_tlv_max
, 1200, 600, 0);
548 static const DECLARE_TLV_DB_SCALE(drc_tlv_startup
, -300, 50, 0);
550 static const char *drc_slope_text
[] = {
551 "1", "1/2", "1/4", "1/8", "1/16", "0"
554 static const struct soc_enum drc_slope_r0
=
555 SOC_ENUM_SINGLE(WM8903_DRC_2
, 3, 6, drc_slope_text
);
557 static const struct soc_enum drc_slope_r1
=
558 SOC_ENUM_SINGLE(WM8903_DRC_2
, 0, 6, drc_slope_text
);
560 static const char *drc_attack_text
[] = {
562 "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
563 "46.4ms", "92.8ms", "185.6ms"
566 static const struct soc_enum drc_attack
=
567 SOC_ENUM_SINGLE(WM8903_DRC_1
, 12, 11, drc_attack_text
);
569 static const char *drc_decay_text
[] = {
570 "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
574 static const struct soc_enum drc_decay
=
575 SOC_ENUM_SINGLE(WM8903_DRC_1
, 8, 9, drc_decay_text
);
577 static const char *drc_ff_delay_text
[] = {
578 "5 samples", "9 samples"
581 static const struct soc_enum drc_ff_delay
=
582 SOC_ENUM_SINGLE(WM8903_DRC_0
, 5, 2, drc_ff_delay_text
);
584 static const char *drc_qr_decay_text
[] = {
585 "0.725ms", "1.45ms", "5.8ms"
588 static const struct soc_enum drc_qr_decay
=
589 SOC_ENUM_SINGLE(WM8903_DRC_1
, 4, 3, drc_qr_decay_text
);
591 static const char *drc_smoothing_text
[] = {
592 "Low", "Medium", "High"
595 static const struct soc_enum drc_smoothing
=
596 SOC_ENUM_SINGLE(WM8903_DRC_0
, 11, 3, drc_smoothing_text
);
598 static const char *soft_mute_text
[] = {
599 "Fast (fs/2)", "Slow (fs/32)"
602 static const struct soc_enum soft_mute
=
603 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1
, 10, 2, soft_mute_text
);
605 static const char *mute_mode_text
[] = {
609 static const struct soc_enum mute_mode
=
610 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1
, 9, 2, mute_mode_text
);
612 static const char *dac_deemphasis_text
[] = {
613 "Disabled", "32kHz", "44.1kHz", "48kHz"
616 static const struct soc_enum dac_deemphasis
=
617 SOC_ENUM_SINGLE(WM8903_DAC_DIGITAL_1
, 1, 4, dac_deemphasis_text
);
619 static const char *companding_text
[] = {
623 static const struct soc_enum dac_companding
=
624 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0
, 0, 2, companding_text
);
626 static const struct soc_enum adc_companding
=
627 SOC_ENUM_SINGLE(WM8903_AUDIO_INTERFACE_0
, 2, 2, companding_text
);
629 static const char *input_mode_text
[] = {
630 "Single-Ended", "Differential Line", "Differential Mic"
633 static const struct soc_enum linput_mode_enum
=
634 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1
, 0, 3, input_mode_text
);
636 static const struct soc_enum rinput_mode_enum
=
637 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1
, 0, 3, input_mode_text
);
639 static const char *linput_mux_text
[] = {
640 "IN1L", "IN2L", "IN3L"
643 static const struct soc_enum linput_enum
=
644 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1
, 2, 3, linput_mux_text
);
646 static const struct soc_enum linput_inv_enum
=
647 SOC_ENUM_SINGLE(WM8903_ANALOGUE_LEFT_INPUT_1
, 4, 3, linput_mux_text
);
649 static const char *rinput_mux_text
[] = {
650 "IN1R", "IN2R", "IN3R"
653 static const struct soc_enum rinput_enum
=
654 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1
, 2, 3, rinput_mux_text
);
656 static const struct soc_enum rinput_inv_enum
=
657 SOC_ENUM_SINGLE(WM8903_ANALOGUE_RIGHT_INPUT_1
, 4, 3, rinput_mux_text
);
660 static const struct snd_kcontrol_new wm8903_snd_controls
[] = {
662 /* Input PGAs - No TLV since the scale depends on PGA mode */
663 SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0
,
665 SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0
,
667 SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1
,
670 SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0
,
672 SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0
,
674 SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1
,
678 SOC_SINGLE("DRC Switch", WM8903_DRC_0
, 15, 1, 0),
679 SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0
),
680 SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1
),
681 SOC_SINGLE_TLV("DRC Compressor Threashold Volume", WM8903_DRC_3
, 5, 124, 1,
683 SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3
, 0, 30, 1, drc_tlv_amp
),
684 SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1
, 2, 3, 1, drc_tlv_min
),
685 SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1
, 0, 3, 0, drc_tlv_max
),
686 SOC_ENUM("DRC Attack Rate", drc_attack
),
687 SOC_ENUM("DRC Decay Rate", drc_decay
),
688 SOC_ENUM("DRC FF Delay", drc_ff_delay
),
689 SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0
, 1, 1, 0),
690 SOC_SINGLE("DRC QR Switch", WM8903_DRC_0
, 2, 1, 0),
691 SOC_SINGLE_TLV("DRC QR Threashold Volume", WM8903_DRC_0
, 6, 3, 0, drc_tlv_max
),
692 SOC_ENUM("DRC QR Decay Rate", drc_qr_decay
),
693 SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0
, 3, 1, 0),
694 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0
, 0, 1, 0),
695 SOC_ENUM("DRC Smoothing Threashold", drc_smoothing
),
696 SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0
, 6, 18, 0, drc_tlv_startup
),
698 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT
,
699 WM8903_ADC_DIGITAL_VOLUME_RIGHT
, 1, 96, 0, digital_tlv
),
700 SOC_ENUM("ADC Companding Mode", adc_companding
),
701 SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0
, 3, 1, 0),
704 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT
,
705 WM8903_DAC_DIGITAL_VOLUME_RIGHT
, 1, 120, 0, digital_tlv
),
706 SOC_ENUM("DAC Soft Mute Rate", soft_mute
),
707 SOC_ENUM("DAC Mute Mode", mute_mode
),
708 SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1
, 12, 1, 0),
709 SOC_ENUM("DAC De-emphasis", dac_deemphasis
),
710 SOC_SINGLE("DAC Sloping Stopband Filter Switch",
711 WM8903_DAC_DIGITAL_1
, 11, 1, 0),
712 SOC_ENUM("DAC Companding Mode", dac_companding
),
713 SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0
, 1, 1, 0),
716 SOC_DOUBLE_R("Headphone Switch",
717 WM8903_ANALOGUE_OUT1_LEFT
, WM8903_ANALOGUE_OUT1_RIGHT
,
719 SOC_DOUBLE_R("Headphone ZC Switch",
720 WM8903_ANALOGUE_OUT1_LEFT
, WM8903_ANALOGUE_OUT1_RIGHT
,
722 SOC_DOUBLE_R_TLV("Headphone Volume",
723 WM8903_ANALOGUE_OUT1_LEFT
, WM8903_ANALOGUE_OUT1_RIGHT
,
727 SOC_DOUBLE_R("Line Out Switch",
728 WM8903_ANALOGUE_OUT2_LEFT
, WM8903_ANALOGUE_OUT2_RIGHT
,
730 SOC_DOUBLE_R("Line Out ZC Switch",
731 WM8903_ANALOGUE_OUT2_LEFT
, WM8903_ANALOGUE_OUT2_RIGHT
,
733 SOC_DOUBLE_R_TLV("Line Out Volume",
734 WM8903_ANALOGUE_OUT2_LEFT
, WM8903_ANALOGUE_OUT2_RIGHT
,
738 SOC_DOUBLE_R("Speaker Switch",
739 WM8903_ANALOGUE_OUT3_LEFT
, WM8903_ANALOGUE_OUT3_RIGHT
, 8, 1, 1),
740 SOC_DOUBLE_R("Speaker ZC Switch",
741 WM8903_ANALOGUE_OUT3_LEFT
, WM8903_ANALOGUE_OUT3_RIGHT
, 6, 1, 0),
742 SOC_DOUBLE_R_TLV("Speaker Volume",
743 WM8903_ANALOGUE_OUT3_LEFT
, WM8903_ANALOGUE_OUT3_RIGHT
,
747 static int wm8903_add_controls(struct snd_soc_codec
*codec
)
751 for (i
= 0; i
< ARRAY_SIZE(wm8903_snd_controls
); i
++) {
752 err
= snd_ctl_add(codec
->card
,
753 snd_soc_cnew(&wm8903_snd_controls
[i
],
762 static const struct snd_kcontrol_new linput_mode_mux
=
763 SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum
);
765 static const struct snd_kcontrol_new rinput_mode_mux
=
766 SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum
);
768 static const struct snd_kcontrol_new linput_mux
=
769 SOC_DAPM_ENUM("Left Input Mux", linput_enum
);
771 static const struct snd_kcontrol_new linput_inv_mux
=
772 SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum
);
774 static const struct snd_kcontrol_new rinput_mux
=
775 SOC_DAPM_ENUM("Right Input Mux", rinput_enum
);
777 static const struct snd_kcontrol_new rinput_inv_mux
=
778 SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum
);
780 static const struct snd_kcontrol_new left_output_mixer
[] = {
781 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0
, 3, 1, 0),
782 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0
, 2, 1, 0),
783 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0
, 1, 1, 0),
784 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0
, 0, 1, 0),
787 static const struct snd_kcontrol_new right_output_mixer
[] = {
788 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0
, 3, 1, 0),
789 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0
, 2, 1, 0),
790 SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0
, 1, 1, 0),
791 SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0
, 0, 1, 0),
794 static const struct snd_kcontrol_new left_speaker_mixer
[] = {
795 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0
, 3, 1, 0),
796 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0
, 2, 1, 0),
797 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0
, 1, 1, 0),
798 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0
,
802 static const struct snd_kcontrol_new right_speaker_mixer
[] = {
803 SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0
, 3, 1, 0),
804 SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0
, 2, 1, 0),
805 SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0
,
807 SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0
,
811 static const struct snd_soc_dapm_widget wm8903_dapm_widgets
[] = {
812 SND_SOC_DAPM_INPUT("IN1L"),
813 SND_SOC_DAPM_INPUT("IN1R"),
814 SND_SOC_DAPM_INPUT("IN2L"),
815 SND_SOC_DAPM_INPUT("IN2R"),
816 SND_SOC_DAPM_INPUT("IN3L"),
817 SND_SOC_DAPM_INPUT("IN3R"),
819 SND_SOC_DAPM_OUTPUT("HPOUTL"),
820 SND_SOC_DAPM_OUTPUT("HPOUTR"),
821 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
822 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
823 SND_SOC_DAPM_OUTPUT("LOP"),
824 SND_SOC_DAPM_OUTPUT("LON"),
825 SND_SOC_DAPM_OUTPUT("ROP"),
826 SND_SOC_DAPM_OUTPUT("RON"),
828 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8903_MIC_BIAS_CONTROL_0
, 0, 0),
830 SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM
, 0, 0, &linput_mux
),
831 SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM
, 0, 0,
833 SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM
, 0, 0, &linput_mode_mux
),
835 SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM
, 0, 0, &rinput_mux
),
836 SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM
, 0, 0,
838 SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM
, 0, 0, &rinput_mode_mux
),
840 SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0
, 1, 0, NULL
, 0),
841 SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0
, 0, 0, NULL
, 0),
843 SND_SOC_DAPM_ADC("ADCL", "Left HiFi Capture", WM8903_POWER_MANAGEMENT_6
, 1, 0),
844 SND_SOC_DAPM_ADC("ADCR", "Right HiFi Capture", WM8903_POWER_MANAGEMENT_6
, 0, 0),
846 SND_SOC_DAPM_DAC("DACL", "Left Playback", WM8903_POWER_MANAGEMENT_6
, 3, 0),
847 SND_SOC_DAPM_DAC("DACR", "Right Playback", WM8903_POWER_MANAGEMENT_6
, 2, 0),
849 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1
, 1, 0,
850 left_output_mixer
, ARRAY_SIZE(left_output_mixer
)),
851 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1
, 0, 0,
852 right_output_mixer
, ARRAY_SIZE(right_output_mixer
)),
854 SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4
, 1, 0,
855 left_speaker_mixer
, ARRAY_SIZE(left_speaker_mixer
)),
856 SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4
, 0, 0,
857 right_speaker_mixer
, ARRAY_SIZE(right_speaker_mixer
)),
859 SND_SOC_DAPM_PGA_E("Left Headphone Output PGA", WM8903_POWER_MANAGEMENT_2
,
860 1, 0, NULL
, 0, wm8903_output_event
,
861 SND_SOC_DAPM_PRE_PMU
| SND_SOC_DAPM_POST_PMU
|
862 SND_SOC_DAPM_PRE_PMD
| SND_SOC_DAPM_POST_PMD
),
863 SND_SOC_DAPM_PGA_E("Right Headphone Output PGA", WM8903_POWER_MANAGEMENT_2
,
864 0, 0, NULL
, 0, wm8903_output_event
,
865 SND_SOC_DAPM_PRE_PMU
| SND_SOC_DAPM_POST_PMU
|
866 SND_SOC_DAPM_PRE_PMD
| SND_SOC_DAPM_POST_PMD
),
868 SND_SOC_DAPM_PGA_E("Left Line Output PGA", WM8903_POWER_MANAGEMENT_3
, 1, 0,
869 NULL
, 0, wm8903_output_event
,
870 SND_SOC_DAPM_PRE_PMU
| SND_SOC_DAPM_POST_PMU
|
871 SND_SOC_DAPM_PRE_PMD
| SND_SOC_DAPM_POST_PMD
),
872 SND_SOC_DAPM_PGA_E("Right Line Output PGA", WM8903_POWER_MANAGEMENT_3
, 0, 0,
873 NULL
, 0, wm8903_output_event
,
874 SND_SOC_DAPM_PRE_PMU
| SND_SOC_DAPM_POST_PMU
|
875 SND_SOC_DAPM_PRE_PMD
| SND_SOC_DAPM_POST_PMD
),
877 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5
, 1, 0,
879 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5
, 0, 0,
884 static const struct snd_soc_dapm_route intercon
[] = {
886 { "Left Input Mux", "IN1L", "IN1L" },
887 { "Left Input Mux", "IN2L", "IN2L" },
888 { "Left Input Mux", "IN3L", "IN3L" },
890 { "Left Input Inverting Mux", "IN1L", "IN1L" },
891 { "Left Input Inverting Mux", "IN2L", "IN2L" },
892 { "Left Input Inverting Mux", "IN3L", "IN3L" },
894 { "Right Input Mux", "IN1R", "IN1R" },
895 { "Right Input Mux", "IN2R", "IN2R" },
896 { "Right Input Mux", "IN3R", "IN3R" },
898 { "Right Input Inverting Mux", "IN1R", "IN1R" },
899 { "Right Input Inverting Mux", "IN2R", "IN2R" },
900 { "Right Input Inverting Mux", "IN3R", "IN3R" },
902 { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
903 { "Left Input Mode Mux", "Differential Line",
905 { "Left Input Mode Mux", "Differential Line",
906 "Left Input Inverting Mux" },
907 { "Left Input Mode Mux", "Differential Mic",
909 { "Left Input Mode Mux", "Differential Mic",
910 "Left Input Inverting Mux" },
912 { "Right Input Mode Mux", "Single-Ended",
913 "Right Input Inverting Mux" },
914 { "Right Input Mode Mux", "Differential Line",
916 { "Right Input Mode Mux", "Differential Line",
917 "Right Input Inverting Mux" },
918 { "Right Input Mode Mux", "Differential Mic",
920 { "Right Input Mode Mux", "Differential Mic",
921 "Right Input Inverting Mux" },
923 { "Left Input PGA", NULL
, "Left Input Mode Mux" },
924 { "Right Input PGA", NULL
, "Right Input Mode Mux" },
926 { "ADCL", NULL
, "Left Input PGA" },
927 { "ADCR", NULL
, "Right Input PGA" },
929 { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
930 { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
931 { "Left Output Mixer", "DACL Switch", "DACL" },
932 { "Left Output Mixer", "DACR Switch", "DACR" },
934 { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
935 { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
936 { "Right Output Mixer", "DACL Switch", "DACL" },
937 { "Right Output Mixer", "DACR Switch", "DACR" },
939 { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
940 { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
941 { "Left Speaker Mixer", "DACL Switch", "DACL" },
942 { "Left Speaker Mixer", "DACR Switch", "DACR" },
944 { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
945 { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
946 { "Right Speaker Mixer", "DACL Switch", "DACL" },
947 { "Right Speaker Mixer", "DACR Switch", "DACR" },
949 { "Left Line Output PGA", NULL
, "Left Output Mixer" },
950 { "Right Line Output PGA", NULL
, "Right Output Mixer" },
952 { "Left Headphone Output PGA", NULL
, "Left Output Mixer" },
953 { "Right Headphone Output PGA", NULL
, "Right Output Mixer" },
955 { "Left Speaker PGA", NULL
, "Left Speaker Mixer" },
956 { "Right Speaker PGA", NULL
, "Right Speaker Mixer" },
958 { "HPOUTL", NULL
, "Left Headphone Output PGA" },
959 { "HPOUTR", NULL
, "Right Headphone Output PGA" },
961 { "LINEOUTL", NULL
, "Left Line Output PGA" },
962 { "LINEOUTR", NULL
, "Right Line Output PGA" },
964 { "LOP", NULL
, "Left Speaker PGA" },
965 { "LON", NULL
, "Left Speaker PGA" },
967 { "ROP", NULL
, "Right Speaker PGA" },
968 { "RON", NULL
, "Right Speaker PGA" },
971 static int wm8903_add_widgets(struct snd_soc_codec
*codec
)
973 snd_soc_dapm_new_controls(codec
, wm8903_dapm_widgets
,
974 ARRAY_SIZE(wm8903_dapm_widgets
));
976 snd_soc_dapm_add_routes(codec
, intercon
, ARRAY_SIZE(intercon
));
978 snd_soc_dapm_new_widgets(codec
);
983 static int wm8903_set_bias_level(struct snd_soc_codec
*codec
,
984 enum snd_soc_bias_level level
)
986 struct i2c_client
*i2c
= codec
->control_data
;
990 case SND_SOC_BIAS_ON
:
991 case SND_SOC_BIAS_PREPARE
:
992 reg
= wm8903_read(codec
, WM8903_VMID_CONTROL_0
);
993 reg
&= ~(WM8903_VMID_RES_MASK
);
994 reg
|= WM8903_VMID_RES_50K
;
995 wm8903_write(codec
, WM8903_VMID_CONTROL_0
, reg
);
998 case SND_SOC_BIAS_STANDBY
:
999 if (codec
->bias_level
== SND_SOC_BIAS_OFF
) {
1000 wm8903_write(codec
, WM8903_CLOCK_RATES_2
,
1001 WM8903_CLK_SYS_ENA
);
1003 wm8903_run_sequence(codec
, 0);
1004 wm8903_sync_reg_cache(codec
, codec
->reg_cache
);
1006 /* Enable low impedence charge pump output */
1007 reg
= wm8903_read(codec
,
1008 WM8903_CONTROL_INTERFACE_TEST_1
);
1009 wm8903_write(codec
, WM8903_CONTROL_INTERFACE_TEST_1
,
1010 reg
| WM8903_TEST_KEY
);
1011 reg2
= wm8903_read(codec
, WM8903_CHARGE_PUMP_TEST_1
);
1012 wm8903_write(codec
, WM8903_CHARGE_PUMP_TEST_1
,
1013 reg2
| WM8903_CP_SW_KELVIN_MODE_MASK
);
1014 wm8903_write(codec
, WM8903_CONTROL_INTERFACE_TEST_1
,
1017 /* By default no bypass paths are enabled so
1018 * enable Class W support.
1020 dev_dbg(&i2c
->dev
, "Enabling Class W\n");
1021 wm8903_write(codec
, WM8903_CLASS_W_0
, reg
|
1022 WM8903_CP_DYN_FREQ
| WM8903_CP_DYN_V
);
1025 reg
= wm8903_read(codec
, WM8903_VMID_CONTROL_0
);
1026 reg
&= ~(WM8903_VMID_RES_MASK
);
1027 reg
|= WM8903_VMID_RES_250K
;
1028 wm8903_write(codec
, WM8903_VMID_CONTROL_0
, reg
);
1031 case SND_SOC_BIAS_OFF
:
1032 wm8903_run_sequence(codec
, 32);
1033 reg
= wm8903_read(codec
, WM8903_CLOCK_RATES_2
);
1034 reg
&= ~WM8903_CLK_SYS_ENA
;
1035 wm8903_write(codec
, WM8903_CLOCK_RATES_2
, reg
);
1039 codec
->bias_level
= level
;
1044 static int wm8903_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
1045 int clk_id
, unsigned int freq
, int dir
)
1047 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1048 struct wm8903_priv
*wm8903
= codec
->private_data
;
1050 wm8903
->sysclk
= freq
;
1055 static int wm8903_set_dai_fmt(struct snd_soc_dai
*codec_dai
,
1058 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1059 u16 aif1
= wm8903_read(codec
, WM8903_AUDIO_INTERFACE_1
);
1061 aif1
&= ~(WM8903_LRCLK_DIR
| WM8903_BCLK_DIR
| WM8903_AIF_FMT_MASK
|
1062 WM8903_AIF_LRCLK_INV
| WM8903_AIF_BCLK_INV
);
1064 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
1065 case SND_SOC_DAIFMT_CBS_CFS
:
1067 case SND_SOC_DAIFMT_CBS_CFM
:
1068 aif1
|= WM8903_LRCLK_DIR
;
1070 case SND_SOC_DAIFMT_CBM_CFM
:
1071 aif1
|= WM8903_LRCLK_DIR
| WM8903_BCLK_DIR
;
1073 case SND_SOC_DAIFMT_CBM_CFS
:
1074 aif1
|= WM8903_BCLK_DIR
;
1080 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
1081 case SND_SOC_DAIFMT_DSP_A
:
1084 case SND_SOC_DAIFMT_DSP_B
:
1085 aif1
|= 0x3 | WM8903_AIF_LRCLK_INV
;
1087 case SND_SOC_DAIFMT_I2S
:
1090 case SND_SOC_DAIFMT_RIGHT_J
:
1093 case SND_SOC_DAIFMT_LEFT_J
:
1099 /* Clock inversion */
1100 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
1101 case SND_SOC_DAIFMT_DSP_A
:
1102 case SND_SOC_DAIFMT_DSP_B
:
1103 /* frame inversion not valid for DSP modes */
1104 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1105 case SND_SOC_DAIFMT_NB_NF
:
1107 case SND_SOC_DAIFMT_IB_NF
:
1108 aif1
|= WM8903_AIF_BCLK_INV
;
1114 case SND_SOC_DAIFMT_I2S
:
1115 case SND_SOC_DAIFMT_RIGHT_J
:
1116 case SND_SOC_DAIFMT_LEFT_J
:
1117 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
1118 case SND_SOC_DAIFMT_NB_NF
:
1120 case SND_SOC_DAIFMT_IB_IF
:
1121 aif1
|= WM8903_AIF_BCLK_INV
| WM8903_AIF_LRCLK_INV
;
1123 case SND_SOC_DAIFMT_IB_NF
:
1124 aif1
|= WM8903_AIF_BCLK_INV
;
1126 case SND_SOC_DAIFMT_NB_IF
:
1127 aif1
|= WM8903_AIF_LRCLK_INV
;
1137 wm8903_write(codec
, WM8903_AUDIO_INTERFACE_1
, aif1
);
1142 static int wm8903_digital_mute(struct snd_soc_dai
*codec_dai
, int mute
)
1144 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1147 reg
= wm8903_read(codec
, WM8903_DAC_DIGITAL_1
);
1150 reg
|= WM8903_DAC_MUTE
;
1152 reg
&= ~WM8903_DAC_MUTE
;
1154 wm8903_write(codec
, WM8903_DAC_DIGITAL_1
, reg
);
1159 /* Lookup table for CLK_SYS/fs ratio. 256fs or more is recommended
1160 * for optimal performance so we list the lower rates first and match
1161 * on the last match we find. */
1167 } clk_sys_ratios
[] = {
1168 { 64, 0x0, 0x0, 1 },
1169 { 68, 0x0, 0x1, 1 },
1170 { 125, 0x0, 0x2, 1 },
1171 { 128, 0x1, 0x0, 1 },
1172 { 136, 0x1, 0x1, 1 },
1173 { 192, 0x2, 0x0, 1 },
1174 { 204, 0x2, 0x1, 1 },
1176 { 64, 0x0, 0x0, 2 },
1177 { 68, 0x0, 0x1, 2 },
1178 { 125, 0x0, 0x2, 2 },
1179 { 128, 0x1, 0x0, 2 },
1180 { 136, 0x1, 0x1, 2 },
1181 { 192, 0x2, 0x0, 2 },
1182 { 204, 0x2, 0x1, 2 },
1184 { 250, 0x2, 0x2, 1 },
1185 { 256, 0x3, 0x0, 1 },
1186 { 272, 0x3, 0x1, 1 },
1187 { 384, 0x4, 0x0, 1 },
1188 { 408, 0x4, 0x1, 1 },
1189 { 375, 0x4, 0x2, 1 },
1190 { 512, 0x5, 0x0, 1 },
1191 { 544, 0x5, 0x1, 1 },
1192 { 500, 0x5, 0x2, 1 },
1193 { 768, 0x6, 0x0, 1 },
1194 { 816, 0x6, 0x1, 1 },
1195 { 750, 0x6, 0x2, 1 },
1196 { 1024, 0x7, 0x0, 1 },
1197 { 1088, 0x7, 0x1, 1 },
1198 { 1000, 0x7, 0x2, 1 },
1199 { 1408, 0x8, 0x0, 1 },
1200 { 1496, 0x8, 0x1, 1 },
1201 { 1536, 0x9, 0x0, 1 },
1202 { 1632, 0x9, 0x1, 1 },
1203 { 1500, 0x9, 0x2, 1 },
1205 { 250, 0x2, 0x2, 2 },
1206 { 256, 0x3, 0x0, 2 },
1207 { 272, 0x3, 0x1, 2 },
1208 { 384, 0x4, 0x0, 2 },
1209 { 408, 0x4, 0x1, 2 },
1210 { 375, 0x4, 0x2, 2 },
1211 { 512, 0x5, 0x0, 2 },
1212 { 544, 0x5, 0x1, 2 },
1213 { 500, 0x5, 0x2, 2 },
1214 { 768, 0x6, 0x0, 2 },
1215 { 816, 0x6, 0x1, 2 },
1216 { 750, 0x6, 0x2, 2 },
1217 { 1024, 0x7, 0x0, 2 },
1218 { 1088, 0x7, 0x1, 2 },
1219 { 1000, 0x7, 0x2, 2 },
1220 { 1408, 0x8, 0x0, 2 },
1221 { 1496, 0x8, 0x1, 2 },
1222 { 1536, 0x9, 0x0, 2 },
1223 { 1632, 0x9, 0x1, 2 },
1224 { 1500, 0x9, 0x2, 2 },
1227 /* CLK_SYS/BCLK ratios - multiplied by 10 due to .5s */
1255 /* Sample rates for DSP */
1259 } sample_rates
[] = {
1274 static int wm8903_startup(struct snd_pcm_substream
*substream
,
1275 struct snd_soc_dai
*dai
)
1277 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
1278 struct snd_soc_device
*socdev
= rtd
->socdev
;
1279 struct snd_soc_codec
*codec
= socdev
->codec
;
1280 struct wm8903_priv
*wm8903
= codec
->private_data
;
1281 struct i2c_client
*i2c
= codec
->control_data
;
1282 struct snd_pcm_runtime
*master_runtime
;
1284 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
1285 wm8903
->playback_active
++;
1287 wm8903
->capture_active
++;
1289 /* The DAI has shared clocks so if we already have a playback or
1290 * capture going then constrain this substream to match it.
1292 if (wm8903
->master_substream
) {
1293 master_runtime
= wm8903
->master_substream
->runtime
;
1295 dev_dbg(&i2c
->dev
, "Constraining to %d bits at %dHz\n",
1296 master_runtime
->sample_bits
,
1297 master_runtime
->rate
);
1299 snd_pcm_hw_constraint_minmax(substream
->runtime
,
1300 SNDRV_PCM_HW_PARAM_RATE
,
1301 master_runtime
->rate
,
1302 master_runtime
->rate
);
1304 snd_pcm_hw_constraint_minmax(substream
->runtime
,
1305 SNDRV_PCM_HW_PARAM_SAMPLE_BITS
,
1306 master_runtime
->sample_bits
,
1307 master_runtime
->sample_bits
);
1309 wm8903
->slave_substream
= substream
;
1311 wm8903
->master_substream
= substream
;
1316 static void wm8903_shutdown(struct snd_pcm_substream
*substream
,
1317 struct snd_soc_dai
*dai
)
1319 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
1320 struct snd_soc_device
*socdev
= rtd
->socdev
;
1321 struct snd_soc_codec
*codec
= socdev
->codec
;
1322 struct wm8903_priv
*wm8903
= codec
->private_data
;
1324 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
1325 wm8903
->playback_active
--;
1327 wm8903
->capture_active
--;
1329 if (wm8903
->master_substream
== substream
)
1330 wm8903
->master_substream
= wm8903
->slave_substream
;
1332 wm8903
->slave_substream
= NULL
;
1335 static int wm8903_hw_params(struct snd_pcm_substream
*substream
,
1336 struct snd_pcm_hw_params
*params
,
1337 struct snd_soc_dai
*dai
)
1339 struct snd_soc_pcm_runtime
*rtd
= substream
->private_data
;
1340 struct snd_soc_device
*socdev
= rtd
->socdev
;
1341 struct snd_soc_codec
*codec
= socdev
->codec
;
1342 struct wm8903_priv
*wm8903
= codec
->private_data
;
1343 struct i2c_client
*i2c
= codec
->control_data
;
1344 int fs
= params_rate(params
);
1354 u16 aif1
= wm8903_read(codec
, WM8903_AUDIO_INTERFACE_1
);
1355 u16 aif2
= wm8903_read(codec
, WM8903_AUDIO_INTERFACE_2
);
1356 u16 aif3
= wm8903_read(codec
, WM8903_AUDIO_INTERFACE_3
);
1357 u16 clock0
= wm8903_read(codec
, WM8903_CLOCK_RATES_0
);
1358 u16 clock1
= wm8903_read(codec
, WM8903_CLOCK_RATES_1
);
1360 if (substream
== wm8903
->slave_substream
) {
1361 dev_dbg(&i2c
->dev
, "Ignoring hw_params for slave substream\n");
1365 /* Configure sample rate logic for DSP - choose nearest rate */
1367 best_val
= abs(sample_rates
[dsp_config
].rate
- fs
);
1368 for (i
= 1; i
< ARRAY_SIZE(sample_rates
); i
++) {
1369 cur_val
= abs(sample_rates
[i
].rate
- fs
);
1370 if (cur_val
<= best_val
) {
1376 /* Constraints should stop us hitting this but let's make sure */
1377 if (wm8903
->capture_active
)
1378 switch (sample_rates
[dsp_config
].rate
) {
1381 dev_err(&i2c
->dev
, "%dHz unsupported by ADC\n",
1389 dev_dbg(&i2c
->dev
, "DSP fs = %dHz\n", sample_rates
[dsp_config
].rate
);
1390 clock1
&= ~WM8903_SAMPLE_RATE_MASK
;
1391 clock1
|= sample_rates
[dsp_config
].value
;
1393 aif1
&= ~WM8903_AIF_WL_MASK
;
1395 switch (params_format(params
)) {
1396 case SNDRV_PCM_FORMAT_S16_LE
:
1399 case SNDRV_PCM_FORMAT_S20_3LE
:
1403 case SNDRV_PCM_FORMAT_S24_LE
:
1407 case SNDRV_PCM_FORMAT_S32_LE
:
1415 dev_dbg(&i2c
->dev
, "MCLK = %dHz, target sample rate = %dHz\n",
1416 wm8903
->sysclk
, fs
);
1418 /* We may not have an MCLK which allows us to generate exactly
1419 * the clock we want, particularly with USB derived inputs, so
1423 best_val
= abs((wm8903
->sysclk
/
1424 (clk_sys_ratios
[0].mclk_div
*
1425 clk_sys_ratios
[0].div
)) - fs
);
1426 for (i
= 1; i
< ARRAY_SIZE(clk_sys_ratios
); i
++) {
1427 cur_val
= abs((wm8903
->sysclk
/
1428 (clk_sys_ratios
[i
].mclk_div
*
1429 clk_sys_ratios
[i
].div
)) - fs
);
1431 if (cur_val
<= best_val
) {
1437 if (clk_sys_ratios
[clk_config
].mclk_div
== 2) {
1438 clock0
|= WM8903_MCLKDIV2
;
1439 clk_sys
= wm8903
->sysclk
/ 2;
1441 clock0
&= ~WM8903_MCLKDIV2
;
1442 clk_sys
= wm8903
->sysclk
;
1445 clock1
&= ~(WM8903_CLK_SYS_RATE_MASK
|
1446 WM8903_CLK_SYS_MODE_MASK
);
1447 clock1
|= clk_sys_ratios
[clk_config
].rate
<< WM8903_CLK_SYS_RATE_SHIFT
;
1448 clock1
|= clk_sys_ratios
[clk_config
].mode
<< WM8903_CLK_SYS_MODE_SHIFT
;
1450 dev_dbg(&i2c
->dev
, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1451 clk_sys_ratios
[clk_config
].rate
,
1452 clk_sys_ratios
[clk_config
].mode
,
1453 clk_sys_ratios
[clk_config
].div
);
1455 dev_dbg(&i2c
->dev
, "Actual CLK_SYS = %dHz\n", clk_sys
);
1457 /* We may not get quite the right frequency if using
1458 * approximate clocks so look for the closest match that is
1459 * higher than the target (we need to ensure that there enough
1460 * BCLKs to clock out the samples).
1463 best_val
= ((clk_sys
* 10) / bclk_divs
[0].ratio
) - bclk
;
1465 while (i
< ARRAY_SIZE(bclk_divs
)) {
1466 cur_val
= ((clk_sys
* 10) / bclk_divs
[i
].ratio
) - bclk
;
1467 if (cur_val
< 0) /* BCLK table is sorted */
1474 aif2
&= ~WM8903_BCLK_DIV_MASK
;
1475 aif3
&= ~WM8903_LRCLK_RATE_MASK
;
1477 dev_dbg(&i2c
->dev
, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1478 bclk_divs
[bclk_div
].ratio
/ 10, bclk
,
1479 (clk_sys
* 10) / bclk_divs
[bclk_div
].ratio
);
1481 aif2
|= bclk_divs
[bclk_div
].div
;
1484 wm8903_write(codec
, WM8903_CLOCK_RATES_0
, clock0
);
1485 wm8903_write(codec
, WM8903_CLOCK_RATES_1
, clock1
);
1486 wm8903_write(codec
, WM8903_AUDIO_INTERFACE_1
, aif1
);
1487 wm8903_write(codec
, WM8903_AUDIO_INTERFACE_2
, aif2
);
1488 wm8903_write(codec
, WM8903_AUDIO_INTERFACE_3
, aif3
);
1493 #define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1494 SNDRV_PCM_RATE_11025 | \
1495 SNDRV_PCM_RATE_16000 | \
1496 SNDRV_PCM_RATE_22050 | \
1497 SNDRV_PCM_RATE_32000 | \
1498 SNDRV_PCM_RATE_44100 | \
1499 SNDRV_PCM_RATE_48000 | \
1500 SNDRV_PCM_RATE_88200 | \
1501 SNDRV_PCM_RATE_96000)
1503 #define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1504 SNDRV_PCM_RATE_11025 | \
1505 SNDRV_PCM_RATE_16000 | \
1506 SNDRV_PCM_RATE_22050 | \
1507 SNDRV_PCM_RATE_32000 | \
1508 SNDRV_PCM_RATE_44100 | \
1509 SNDRV_PCM_RATE_48000)
1511 #define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1512 SNDRV_PCM_FMTBIT_S20_3LE |\
1513 SNDRV_PCM_FMTBIT_S24_LE)
1515 struct snd_soc_dai wm8903_dai
= {
1518 .stream_name
= "Playback",
1521 .rates
= WM8903_PLAYBACK_RATES
,
1522 .formats
= WM8903_FORMATS
,
1525 .stream_name
= "Capture",
1528 .rates
= WM8903_CAPTURE_RATES
,
1529 .formats
= WM8903_FORMATS
,
1532 .startup
= wm8903_startup
,
1533 .shutdown
= wm8903_shutdown
,
1534 .hw_params
= wm8903_hw_params
,
1535 .digital_mute
= wm8903_digital_mute
,
1536 .set_fmt
= wm8903_set_dai_fmt
,
1537 .set_sysclk
= wm8903_set_dai_sysclk
1540 EXPORT_SYMBOL_GPL(wm8903_dai
);
1542 static int wm8903_suspend(struct platform_device
*pdev
, pm_message_t state
)
1544 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1545 struct snd_soc_codec
*codec
= socdev
->codec
;
1547 wm8903_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1552 static int wm8903_resume(struct platform_device
*pdev
)
1554 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1555 struct snd_soc_codec
*codec
= socdev
->codec
;
1556 struct i2c_client
*i2c
= codec
->control_data
;
1558 u16
*reg_cache
= codec
->reg_cache
;
1559 u16
*tmp_cache
= kmemdup(codec
->reg_cache
, sizeof(wm8903_reg_defaults
),
1562 /* Bring the codec back up to standby first to minimise pop/clicks */
1563 wm8903_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1564 wm8903_set_bias_level(codec
, codec
->suspend_bias_level
);
1566 /* Sync back everything else */
1568 for (i
= 2; i
< ARRAY_SIZE(wm8903_reg_defaults
); i
++)
1569 if (tmp_cache
[i
] != reg_cache
[i
])
1570 wm8903_write(codec
, i
, tmp_cache
[i
]);
1572 dev_err(&i2c
->dev
, "Failed to allocate temporary cache\n");
1578 static struct snd_soc_codec
*wm8903_codec
;
1580 static int wm8903_i2c_probe(struct i2c_client
*i2c
,
1581 const struct i2c_device_id
*id
)
1583 struct wm8903_priv
*wm8903
;
1584 struct snd_soc_codec
*codec
;
1588 wm8903
= kzalloc(sizeof(struct wm8903_priv
), GFP_KERNEL
);
1592 codec
= &wm8903
->codec
;
1594 mutex_init(&codec
->mutex
);
1595 INIT_LIST_HEAD(&codec
->dapm_widgets
);
1596 INIT_LIST_HEAD(&codec
->dapm_paths
);
1598 codec
->dev
= &i2c
->dev
;
1599 codec
->name
= "WM8903";
1600 codec
->owner
= THIS_MODULE
;
1601 codec
->read
= wm8903_read
;
1602 codec
->write
= wm8903_write
;
1603 codec
->hw_write
= (hw_write_t
)i2c_master_send
;
1604 codec
->bias_level
= SND_SOC_BIAS_OFF
;
1605 codec
->set_bias_level
= wm8903_set_bias_level
;
1606 codec
->dai
= &wm8903_dai
;
1608 codec
->reg_cache_size
= ARRAY_SIZE(wm8903
->reg_cache
);
1609 codec
->reg_cache
= &wm8903
->reg_cache
[0];
1610 codec
->private_data
= wm8903
;
1612 i2c_set_clientdata(i2c
, codec
);
1613 codec
->control_data
= i2c
;
1615 val
= wm8903_hw_read(codec
, WM8903_SW_RESET_AND_ID
);
1616 if (val
!= wm8903_reg_defaults
[WM8903_SW_RESET_AND_ID
]) {
1618 "Device with ID register %x is not a WM8903\n", val
);
1622 val
= wm8903_read(codec
, WM8903_REVISION_NUMBER
);
1623 dev_info(&i2c
->dev
, "WM8903 revision %d\n",
1624 val
& WM8903_CHIP_REV_MASK
);
1626 wm8903_reset(codec
);
1628 /* power on device */
1629 wm8903_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1631 /* Latch volume update bits */
1632 val
= wm8903_read(codec
, WM8903_ADC_DIGITAL_VOLUME_LEFT
);
1633 val
|= WM8903_ADCVU
;
1634 wm8903_write(codec
, WM8903_ADC_DIGITAL_VOLUME_LEFT
, val
);
1635 wm8903_write(codec
, WM8903_ADC_DIGITAL_VOLUME_RIGHT
, val
);
1637 val
= wm8903_read(codec
, WM8903_DAC_DIGITAL_VOLUME_LEFT
);
1638 val
|= WM8903_DACVU
;
1639 wm8903_write(codec
, WM8903_DAC_DIGITAL_VOLUME_LEFT
, val
);
1640 wm8903_write(codec
, WM8903_DAC_DIGITAL_VOLUME_RIGHT
, val
);
1642 val
= wm8903_read(codec
, WM8903_ANALOGUE_OUT1_LEFT
);
1643 val
|= WM8903_HPOUTVU
;
1644 wm8903_write(codec
, WM8903_ANALOGUE_OUT1_LEFT
, val
);
1645 wm8903_write(codec
, WM8903_ANALOGUE_OUT1_RIGHT
, val
);
1647 val
= wm8903_read(codec
, WM8903_ANALOGUE_OUT2_LEFT
);
1648 val
|= WM8903_LINEOUTVU
;
1649 wm8903_write(codec
, WM8903_ANALOGUE_OUT2_LEFT
, val
);
1650 wm8903_write(codec
, WM8903_ANALOGUE_OUT2_RIGHT
, val
);
1652 val
= wm8903_read(codec
, WM8903_ANALOGUE_OUT3_LEFT
);
1653 val
|= WM8903_SPKVU
;
1654 wm8903_write(codec
, WM8903_ANALOGUE_OUT3_LEFT
, val
);
1655 wm8903_write(codec
, WM8903_ANALOGUE_OUT3_RIGHT
, val
);
1657 /* Enable DAC soft mute by default */
1658 val
= wm8903_read(codec
, WM8903_DAC_DIGITAL_1
);
1659 val
|= WM8903_DAC_MUTEMODE
;
1660 wm8903_write(codec
, WM8903_DAC_DIGITAL_1
, val
);
1662 wm8903_dai
.dev
= &i2c
->dev
;
1663 wm8903_codec
= codec
;
1665 ret
= snd_soc_register_codec(codec
);
1667 dev_err(&i2c
->dev
, "Failed to register codec: %d\n", ret
);
1671 ret
= snd_soc_register_dai(&wm8903_dai
);
1673 dev_err(&i2c
->dev
, "Failed to register DAI: %d\n", ret
);
1680 snd_soc_unregister_codec(codec
);
1682 wm8903_codec
= NULL
;
1687 static int wm8903_i2c_remove(struct i2c_client
*client
)
1689 struct snd_soc_codec
*codec
= i2c_get_clientdata(client
);
1691 snd_soc_unregister_dai(&wm8903_dai
);
1692 snd_soc_unregister_codec(codec
);
1694 wm8903_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1696 kfree(codec
->private_data
);
1698 wm8903_codec
= NULL
;
1699 wm8903_dai
.dev
= NULL
;
1704 /* i2c codec control layer */
1705 static const struct i2c_device_id wm8903_i2c_id
[] = {
1709 MODULE_DEVICE_TABLE(i2c
, wm8903_i2c_id
);
1711 static struct i2c_driver wm8903_i2c_driver
= {
1714 .owner
= THIS_MODULE
,
1716 .probe
= wm8903_i2c_probe
,
1717 .remove
= wm8903_i2c_remove
,
1718 .id_table
= wm8903_i2c_id
,
1721 static int wm8903_probe(struct platform_device
*pdev
)
1723 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1726 if (!wm8903_codec
) {
1727 dev_err(&pdev
->dev
, "I2C device not yet probed\n");
1731 socdev
->codec
= wm8903_codec
;
1734 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
1736 dev_err(&pdev
->dev
, "failed to create pcms\n");
1740 wm8903_add_controls(socdev
->codec
);
1741 wm8903_add_widgets(socdev
->codec
);
1743 ret
= snd_soc_init_card(socdev
);
1745 dev_err(&pdev
->dev
, "wm8903: failed to register card\n");
1752 snd_soc_free_pcms(socdev
);
1753 snd_soc_dapm_free(socdev
);
1758 /* power down chip */
1759 static int wm8903_remove(struct platform_device
*pdev
)
1761 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1762 struct snd_soc_codec
*codec
= socdev
->codec
;
1764 if (codec
->control_data
)
1765 wm8903_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1767 snd_soc_free_pcms(socdev
);
1768 snd_soc_dapm_free(socdev
);
1773 struct snd_soc_codec_device soc_codec_dev_wm8903
= {
1774 .probe
= wm8903_probe
,
1775 .remove
= wm8903_remove
,
1776 .suspend
= wm8903_suspend
,
1777 .resume
= wm8903_resume
,
1779 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8903
);
1781 static int __init
wm8903_modinit(void)
1783 return i2c_add_driver(&wm8903_i2c_driver
);
1785 module_init(wm8903_modinit
);
1787 static void __exit
wm8903_exit(void)
1789 i2c_del_driver(&wm8903_i2c_driver
);
1791 module_exit(wm8903_exit
);
1793 MODULE_DESCRIPTION("ASoC WM8903 driver");
1794 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
1795 MODULE_LICENSE("GPL");