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619439998a
linux/sound/soc/codecs/wm8350.c
Mark Brown 619439998a ASoC: Automatically manage WM8350 sloping stopband filter 
For best performance the DAC sloping stopband filter should be enabled
below 24kHz and not enabled above that so remove the user visible
control for this and do it autonomously in the driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-06-13 20:06:25 +01:00

1699 lines
49 KiB
C
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/*
* wm8350.c -- WM8350 ALSA SoC audio driver
*
* Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
*
* Author: Liam Girdwood <lrg@slimlogic.co.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/mfd/wm8350/audio.h>
#include <linux/mfd/wm8350/core.h>
#include <linux/regulator/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include "wm8350.h"
#define WM8350_OUTn_0dB 0x39
#define WM8350_RAMP_NONE 0
#define WM8350_RAMP_UP 1
#define WM8350_RAMP_DOWN 2
/* We only include the analogue supplies here; the digital supplies
* need to be available well before this driver can be probed.
*/
static const char *supply_names[] = {
"AVDD",
"HPVDD",
};
struct wm8350_output {
u16 active;
u16 left_vol;
u16 right_vol;
u16 ramp;
u16 mute;
};
struct wm8350_jack_data {
struct snd_soc_jack *jack;
int report;
};
struct wm8350_data {
struct snd_soc_codec codec;
struct wm8350_output out1;
struct wm8350_output out2;
struct wm8350_jack_data hpl;
struct wm8350_jack_data hpr;
struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
};
static unsigned int wm8350_codec_cache_read(struct snd_soc_codec *codec,
unsigned int reg)
{
struct wm8350 *wm8350 = codec->control_data;
return wm8350->reg_cache[reg];
}
static unsigned int wm8350_codec_read(struct snd_soc_codec *codec,
unsigned int reg)
{
struct wm8350 *wm8350 = codec->control_data;
return wm8350_reg_read(wm8350, reg);
}
static int wm8350_codec_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
struct wm8350 *wm8350 = codec->control_data;
return wm8350_reg_write(wm8350, reg, value);
}
/*
* Ramp OUT1 PGA volume to minimise pops at stream startup and shutdown.
*/
static inline int wm8350_out1_ramp_step(struct snd_soc_codec *codec)
{
struct wm8350_data *wm8350_data = codec->private_data;
struct wm8350_output *out1 = &wm8350_data->out1;
struct wm8350 *wm8350 = codec->control_data;
int left_complete = 0, right_complete = 0;
u16 reg, val;
/* left channel */
reg = wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME);
val = (reg & WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
if (out1->ramp == WM8350_RAMP_UP) {
/* ramp step up */
if (val < out1->left_vol) {
val++;
reg &= ~WM8350_OUT1L_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME,
reg | (val << WM8350_OUT1L_VOL_SHIFT));
} else
left_complete = 1;
} else if (out1->ramp == WM8350_RAMP_DOWN) {
/* ramp step down */
if (val > 0) {
val--;
reg &= ~WM8350_OUT1L_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME,
reg | (val << WM8350_OUT1L_VOL_SHIFT));
} else
left_complete = 1;
} else
return 1;
/* right channel */
reg = wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME);
val = (reg & WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
if (out1->ramp == WM8350_RAMP_UP) {
/* ramp step up */
if (val < out1->right_vol) {
val++;
reg &= ~WM8350_OUT1R_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME,
reg | (val << WM8350_OUT1R_VOL_SHIFT));
} else
right_complete = 1;
} else if (out1->ramp == WM8350_RAMP_DOWN) {
/* ramp step down */
if (val > 0) {
val--;
reg &= ~WM8350_OUT1R_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME,
reg | (val << WM8350_OUT1R_VOL_SHIFT));
} else
right_complete = 1;
}
/* only hit the update bit if either volume has changed this step */
if (!left_complete || !right_complete)
wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME, WM8350_OUT1_VU);
return left_complete & right_complete;
}
/*
* Ramp OUT2 PGA volume to minimise pops at stream startup and shutdown.
*/
static inline int wm8350_out2_ramp_step(struct snd_soc_codec *codec)
{
struct wm8350_data *wm8350_data = codec->private_data;
struct wm8350_output *out2 = &wm8350_data->out2;
struct wm8350 *wm8350 = codec->control_data;
int left_complete = 0, right_complete = 0;
u16 reg, val;
/* left channel */
reg = wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME);
val = (reg & WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
if (out2->ramp == WM8350_RAMP_UP) {
/* ramp step up */
if (val < out2->left_vol) {
val++;
reg &= ~WM8350_OUT2L_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME,
reg | (val << WM8350_OUT1L_VOL_SHIFT));
} else
left_complete = 1;
} else if (out2->ramp == WM8350_RAMP_DOWN) {
/* ramp step down */
if (val > 0) {
val--;
reg &= ~WM8350_OUT2L_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME,
reg | (val << WM8350_OUT1L_VOL_SHIFT));
} else
left_complete = 1;
} else
return 1;
/* right channel */
reg = wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME);
val = (reg & WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
if (out2->ramp == WM8350_RAMP_UP) {
/* ramp step up */
if (val < out2->right_vol) {
val++;
reg &= ~WM8350_OUT2R_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME,
reg | (val << WM8350_OUT1R_VOL_SHIFT));
} else
right_complete = 1;
} else if (out2->ramp == WM8350_RAMP_DOWN) {
/* ramp step down */
if (val > 0) {
val--;
reg &= ~WM8350_OUT2R_VOL_MASK;
wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME,
reg | (val << WM8350_OUT1R_VOL_SHIFT));
} else
right_complete = 1;
}
/* only hit the update bit if either volume has changed this step */
if (!left_complete || !right_complete)
wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME, WM8350_OUT2_VU);
return left_complete & right_complete;
}
/*
* This work ramps both output PGAs at stream start/stop time to
* minimise pop associated with DAPM power switching.
* It's best to enable Zero Cross when ramping occurs to minimise any
* zipper noises.
*/
static void wm8350_pga_work(struct work_struct *work)
{
struct snd_soc_codec *codec =
container_of(work, struct snd_soc_codec, delayed_work.work);
struct wm8350_data *wm8350_data = codec->private_data;
struct wm8350_output *out1 = &wm8350_data->out1,
*out2 = &wm8350_data->out2;
int i, out1_complete, out2_complete;
/* do we need to ramp at all ? */
if (out1->ramp == WM8350_RAMP_NONE && out2->ramp == WM8350_RAMP_NONE)
return;
/* PGA volumes have 6 bits of resolution to ramp */
for (i = 0; i <= 63; i++) {
out1_complete = 1, out2_complete = 1;
if (out1->ramp != WM8350_RAMP_NONE)
out1_complete = wm8350_out1_ramp_step(codec);
if (out2->ramp != WM8350_RAMP_NONE)
out2_complete = wm8350_out2_ramp_step(codec);
/* ramp finished ? */
if (out1_complete && out2_complete)
break;
/* we need to delay longer on the up ramp */
if (out1->ramp == WM8350_RAMP_UP ||
out2->ramp == WM8350_RAMP_UP) {
/* delay is longer over 0dB as increases are larger */
if (i >= WM8350_OUTn_0dB)
schedule_timeout_interruptible(msecs_to_jiffies
(2));
else
schedule_timeout_interruptible(msecs_to_jiffies
(1));
} else
udelay(50); /* doesn't matter if we delay longer */
}
out1->ramp = WM8350_RAMP_NONE;
out2->ramp = WM8350_RAMP_NONE;
}
/*
* WM8350 Controls
*/
static int pga_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
struct wm8350_data *wm8350_data = codec->private_data;
struct wm8350_output *out;
switch (w->shift) {
case 0:
case 1:
out = &wm8350_data->out1;
break;
case 2:
case 3:
out = &wm8350_data->out2;
break;
default:
BUG();
return -1;
}
switch (event) {
case SND_SOC_DAPM_POST_PMU:
out->ramp = WM8350_RAMP_UP;
out->active = 1;
if (!delayed_work_pending(&codec->delayed_work))
schedule_delayed_work(&codec->delayed_work,
msecs_to_jiffies(1));
break;
case SND_SOC_DAPM_PRE_PMD:
out->ramp = WM8350_RAMP_DOWN;
out->active = 0;
if (!delayed_work_pending(&codec->delayed_work))
schedule_delayed_work(&codec->delayed_work,
msecs_to_jiffies(1));
break;
}
return 0;
}
static int wm8350_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wm8350_data *wm8350_priv = codec->private_data;
struct wm8350_output *out = NULL;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int ret;
unsigned int reg = mc->reg;
u16 val;
/* For OUT1 and OUT2 we shadow the values and only actually write
* them out when active in order to ensure the amplifier comes on
* as quietly as possible. */
switch (reg) {
case WM8350_LOUT1_VOLUME:
out = &wm8350_priv->out1;
break;
case WM8350_LOUT2_VOLUME:
out = &wm8350_priv->out2;
break;
default:
break;
}
if (out) {
out->left_vol = ucontrol->value.integer.value[0];
out->right_vol = ucontrol->value.integer.value[1];
if (!out->active)
return 1;
}
ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
if (ret < 0)
return ret;
/* now hit the volume update bits (always bit 8) */
val = wm8350_codec_read(codec, reg);
wm8350_codec_write(codec, reg, val | WM8350_OUT1_VU);
return 1;
}
static int wm8350_get_volsw_2r(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wm8350_data *wm8350_priv = codec->private_data;
struct wm8350_output *out1 = &wm8350_priv->out1;
struct wm8350_output *out2 = &wm8350_priv->out2;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg = mc->reg;
/* If these are cached registers use the cache */
switch (reg) {
case WM8350_LOUT1_VOLUME:
ucontrol->value.integer.value[0] = out1->left_vol;
ucontrol->value.integer.value[1] = out1->right_vol;
return 0;
case WM8350_LOUT2_VOLUME:
ucontrol->value.integer.value[0] = out2->left_vol;
ucontrol->value.integer.value[1] = out2->right_vol;
return 0;
default:
break;
}
return snd_soc_get_volsw_2r(kcontrol, ucontrol);
}
/* double control with volume update */
#define SOC_WM8350_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, \
xinvert, tlv_array) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
SNDRV_CTL_ELEM_ACCESS_READWRITE | \
SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
.tlv.p = (tlv_array), \
.info = snd_soc_info_volsw_2r, \
.get = wm8350_get_volsw_2r, .put = wm8350_put_volsw_2r_vu, \
.private_value = (unsigned long)&(struct soc_mixer_control) \
{.reg = reg_left, .rreg = reg_right, .shift = xshift, \
.rshift = xshift, .max = xmax, .invert = xinvert}, }
static const char *wm8350_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
static const char *wm8350_pol[] = { "Normal", "Inv R", "Inv L", "Inv L & R" };
static const char *wm8350_dacmutem[] = { "Normal", "Soft" };
static const char *wm8350_dacmutes[] = { "Fast", "Slow" };
static const char *wm8350_adcfilter[] = { "None", "High Pass" };
static const char *wm8350_adchp[] = { "44.1kHz", "8kHz", "16kHz", "32kHz" };
static const char *wm8350_lr[] = { "Left", "Right" };
static const struct soc_enum wm8350_enum[] = {
SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 4, 4, wm8350_deemp),
SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 0, 4, wm8350_pol),
SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 14, 2, wm8350_dacmutem),
SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 13, 2, wm8350_dacmutes),
SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 15, 2, wm8350_adcfilter),
SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 8, 4, wm8350_adchp),
SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 0, 4, wm8350_pol),
SOC_ENUM_SINGLE(WM8350_INPUT_MIXER_VOLUME, 15, 2, wm8350_lr),
};
static DECLARE_TLV_DB_LINEAR(pre_amp_tlv, -1200, 3525);
static DECLARE_TLV_DB_LINEAR(out_pga_tlv, -5700, 600);
static DECLARE_TLV_DB_SCALE(dac_pcm_tlv, -7163, 36, 1);
static DECLARE_TLV_DB_SCALE(adc_pcm_tlv, -12700, 50, 1);
static DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 1);
static const unsigned int capture_sd_tlv[] = {
TLV_DB_RANGE_HEAD(2),
0, 12, TLV_DB_SCALE_ITEM(-3600, 300, 1),
13, 15, TLV_DB_SCALE_ITEM(0, 0, 0),
};
static const struct snd_kcontrol_new wm8350_snd_controls[] = {
SOC_ENUM("Playback Deemphasis", wm8350_enum[0]),
SOC_ENUM("Playback DAC Inversion", wm8350_enum[1]),
SOC_WM8350_DOUBLE_R_TLV("Playback PCM Volume",
WM8350_DAC_DIGITAL_VOLUME_L,
WM8350_DAC_DIGITAL_VOLUME_R,
0, 255, 0, dac_pcm_tlv),
SOC_ENUM("Playback PCM Mute Function", wm8350_enum[2]),
SOC_ENUM("Playback PCM Mute Speed", wm8350_enum[3]),
SOC_ENUM("Capture PCM Filter", wm8350_enum[4]),
SOC_ENUM("Capture PCM HP Filter", wm8350_enum[5]),
SOC_ENUM("Capture ADC Inversion", wm8350_enum[6]),
SOC_WM8350_DOUBLE_R_TLV("Capture PCM Volume",
WM8350_ADC_DIGITAL_VOLUME_L,
WM8350_ADC_DIGITAL_VOLUME_R,
0, 255, 0, adc_pcm_tlv),
SOC_DOUBLE_TLV("Capture Sidetone Volume",
WM8350_ADC_DIVIDER,
8, 4, 15, 1, capture_sd_tlv),
SOC_WM8350_DOUBLE_R_TLV("Capture Volume",
WM8350_LEFT_INPUT_VOLUME,
WM8350_RIGHT_INPUT_VOLUME,
2, 63, 0, pre_amp_tlv),
SOC_DOUBLE_R("Capture ZC Switch",
WM8350_LEFT_INPUT_VOLUME,
WM8350_RIGHT_INPUT_VOLUME, 13, 1, 0),
SOC_SINGLE_TLV("Left Input Left Sidetone Volume",
WM8350_OUTPUT_LEFT_MIXER_VOLUME, 1, 7, 0, out_mix_tlv),
SOC_SINGLE_TLV("Left Input Right Sidetone Volume",
WM8350_OUTPUT_LEFT_MIXER_VOLUME,
5, 7, 0, out_mix_tlv),
SOC_SINGLE_TLV("Left Input Bypass Volume",
WM8350_OUTPUT_LEFT_MIXER_VOLUME,
9, 7, 0, out_mix_tlv),
SOC_SINGLE_TLV("Right Input Left Sidetone Volume",
WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
1, 7, 0, out_mix_tlv),
SOC_SINGLE_TLV("Right Input Right Sidetone Volume",
WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
5, 7, 0, out_mix_tlv),
SOC_SINGLE_TLV("Right Input Bypass Volume",
WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
13, 7, 0, out_mix_tlv),
SOC_SINGLE("Left Input Mixer +20dB Switch",
WM8350_INPUT_MIXER_VOLUME_L, 0, 1, 0),
SOC_SINGLE("Right Input Mixer +20dB Switch",
WM8350_INPUT_MIXER_VOLUME_R, 0, 1, 0),
SOC_SINGLE_TLV("Out4 Capture Volume",
WM8350_INPUT_MIXER_VOLUME,
1, 7, 0, out_mix_tlv),
SOC_WM8350_DOUBLE_R_TLV("Out1 Playback Volume",
WM8350_LOUT1_VOLUME,
WM8350_ROUT1_VOLUME,
2, 63, 0, out_pga_tlv),
SOC_DOUBLE_R("Out1 Playback ZC Switch",
WM8350_LOUT1_VOLUME,
WM8350_ROUT1_VOLUME, 13, 1, 0),
SOC_WM8350_DOUBLE_R_TLV("Out2 Playback Volume",
WM8350_LOUT2_VOLUME,
WM8350_ROUT2_VOLUME,
2, 63, 0, out_pga_tlv),
SOC_DOUBLE_R("Out2 Playback ZC Switch", WM8350_LOUT2_VOLUME,
WM8350_ROUT2_VOLUME, 13, 1, 0),
SOC_SINGLE("Out2 Right Invert Switch", WM8350_ROUT2_VOLUME, 10, 1, 0),
SOC_SINGLE_TLV("Out2 Beep Volume", WM8350_BEEP_VOLUME,
5, 7, 0, out_mix_tlv),
SOC_DOUBLE_R("Out1 Playback Switch",
WM8350_LOUT1_VOLUME,
WM8350_ROUT1_VOLUME,
14, 1, 1),
SOC_DOUBLE_R("Out2 Playback Switch",
WM8350_LOUT2_VOLUME,
WM8350_ROUT2_VOLUME,
14, 1, 1),
};
/*
* DAPM Controls
*/
/* Left Playback Mixer */
static const struct snd_kcontrol_new wm8350_left_play_mixer_controls[] = {
SOC_DAPM_SINGLE("Playback Switch",
WM8350_LEFT_MIXER_CONTROL, 11, 1, 0),
SOC_DAPM_SINGLE("Left Bypass Switch",
WM8350_LEFT_MIXER_CONTROL, 2, 1, 0),
SOC_DAPM_SINGLE("Right Playback Switch",
WM8350_LEFT_MIXER_CONTROL, 12, 1, 0),
SOC_DAPM_SINGLE("Left Sidetone Switch",
WM8350_LEFT_MIXER_CONTROL, 0, 1, 0),
SOC_DAPM_SINGLE("Right Sidetone Switch",
WM8350_LEFT_MIXER_CONTROL, 1, 1, 0),
};
/* Right Playback Mixer */
static const struct snd_kcontrol_new wm8350_right_play_mixer_controls[] = {
SOC_DAPM_SINGLE("Playback Switch",
WM8350_RIGHT_MIXER_CONTROL, 12, 1, 0),
SOC_DAPM_SINGLE("Right Bypass Switch",
WM8350_RIGHT_MIXER_CONTROL, 3, 1, 0),
SOC_DAPM_SINGLE("Left Playback Switch",
WM8350_RIGHT_MIXER_CONTROL, 11, 1, 0),
SOC_DAPM_SINGLE("Left Sidetone Switch",
WM8350_RIGHT_MIXER_CONTROL, 0, 1, 0),
SOC_DAPM_SINGLE("Right Sidetone Switch",
WM8350_RIGHT_MIXER_CONTROL, 1, 1, 0),
};
/* Out4 Mixer */
static const struct snd_kcontrol_new wm8350_out4_mixer_controls[] = {
SOC_DAPM_SINGLE("Right Playback Switch",
WM8350_OUT4_MIXER_CONTROL, 12, 1, 0),
SOC_DAPM_SINGLE("Left Playback Switch",
WM8350_OUT4_MIXER_CONTROL, 11, 1, 0),
SOC_DAPM_SINGLE("Right Capture Switch",
WM8350_OUT4_MIXER_CONTROL, 9, 1, 0),
SOC_DAPM_SINGLE("Out3 Playback Switch",
WM8350_OUT4_MIXER_CONTROL, 2, 1, 0),
SOC_DAPM_SINGLE("Right Mixer Switch",
WM8350_OUT4_MIXER_CONTROL, 1, 1, 0),
SOC_DAPM_SINGLE("Left Mixer Switch",
WM8350_OUT4_MIXER_CONTROL, 0, 1, 0),
};
/* Out3 Mixer */
static const struct snd_kcontrol_new wm8350_out3_mixer_controls[] = {
SOC_DAPM_SINGLE("Left Playback Switch",
WM8350_OUT3_MIXER_CONTROL, 11, 1, 0),
SOC_DAPM_SINGLE("Left Capture Switch",
WM8350_OUT3_MIXER_CONTROL, 8, 1, 0),
SOC_DAPM_SINGLE("Out4 Playback Switch",
WM8350_OUT3_MIXER_CONTROL, 3, 1, 0),
SOC_DAPM_SINGLE("Left Mixer Switch",
WM8350_OUT3_MIXER_CONTROL, 0, 1, 0),
};
/* Left Input Mixer */
static const struct snd_kcontrol_new wm8350_left_capt_mixer_controls[] = {
SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
WM8350_INPUT_MIXER_VOLUME_L, 1, 7, 0, out_mix_tlv),
SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
WM8350_INPUT_MIXER_VOLUME_L, 9, 7, 0, out_mix_tlv),
SOC_DAPM_SINGLE("PGA Capture Switch",
WM8350_LEFT_INPUT_VOLUME, 14, 1, 0),
};
/* Right Input Mixer */
static const struct snd_kcontrol_new wm8350_right_capt_mixer_controls[] = {
SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
WM8350_INPUT_MIXER_VOLUME_R, 5, 7, 0, out_mix_tlv),
SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
WM8350_INPUT_MIXER_VOLUME_R, 13, 7, 0, out_mix_tlv),
SOC_DAPM_SINGLE("PGA Capture Switch",
WM8350_RIGHT_INPUT_VOLUME, 14, 1, 0),
};
/* Left Mic Mixer */
static const struct snd_kcontrol_new wm8350_left_mic_mixer_controls[] = {
SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 1, 1, 0),
SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 0, 1, 0),
SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 2, 1, 0),
};
/* Right Mic Mixer */
static const struct snd_kcontrol_new wm8350_right_mic_mixer_controls[] = {
SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 9, 1, 0),
SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 8, 1, 0),
SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 10, 1, 0),
};
/* Beep Switch */
static const struct snd_kcontrol_new wm8350_beep_switch_controls =
SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME, 15, 1, 1);
/* Out4 Capture Mux */
static const struct snd_kcontrol_new wm8350_out4_capture_controls =
SOC_DAPM_ENUM("Route", wm8350_enum[8]);
static const struct snd_soc_dapm_widget wm8350_dapm_widgets[] = {
SND_SOC_DAPM_PGA("IN3R PGA", WM8350_POWER_MGMT_2, 11, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN3L PGA", WM8350_POWER_MGMT_2, 10, 0, NULL, 0),
SND_SOC_DAPM_PGA_E("Right Out2 PGA", WM8350_POWER_MGMT_3, 3, 0, NULL,
0, pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Left Out2 PGA", WM8350_POWER_MGMT_3, 2, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Right Out1 PGA", WM8350_POWER_MGMT_3, 1, 0, NULL,
0, pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_PGA_E("Left Out1 PGA", WM8350_POWER_MGMT_3, 0, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_MIXER("Right Capture Mixer", WM8350_POWER_MGMT_2,
7, 0, &wm8350_right_capt_mixer_controls[0],
ARRAY_SIZE(wm8350_right_capt_mixer_controls)),
SND_SOC_DAPM_MIXER("Left Capture Mixer", WM8350_POWER_MGMT_2,
6, 0, &wm8350_left_capt_mixer_controls[0],
ARRAY_SIZE(wm8350_left_capt_mixer_controls)),
SND_SOC_DAPM_MIXER("Out4 Mixer", WM8350_POWER_MGMT_2, 5, 0,
&wm8350_out4_mixer_controls[0],
ARRAY_SIZE(wm8350_out4_mixer_controls)),
SND_SOC_DAPM_MIXER("Out3 Mixer", WM8350_POWER_MGMT_2, 4, 0,
&wm8350_out3_mixer_controls[0],
ARRAY_SIZE(wm8350_out3_mixer_controls)),
SND_SOC_DAPM_MIXER("Right Playback Mixer", WM8350_POWER_MGMT_2, 1, 0,
&wm8350_right_play_mixer_controls[0],
ARRAY_SIZE(wm8350_right_play_mixer_controls)),
SND_SOC_DAPM_MIXER("Left Playback Mixer", WM8350_POWER_MGMT_2, 0, 0,
&wm8350_left_play_mixer_controls[0],
ARRAY_SIZE(wm8350_left_play_mixer_controls)),
SND_SOC_DAPM_MIXER("Left Mic Mixer", WM8350_POWER_MGMT_2, 8, 0,
&wm8350_left_mic_mixer_controls[0],
ARRAY_SIZE(wm8350_left_mic_mixer_controls)),
SND_SOC_DAPM_MIXER("Right Mic Mixer", WM8350_POWER_MGMT_2, 9, 0,
&wm8350_right_mic_mixer_controls[0],
ARRAY_SIZE(wm8350_right_mic_mixer_controls)),
/* virtual mixer for Beep and Out2R */
SND_SOC_DAPM_MIXER("Out2 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_SWITCH("Beep", WM8350_POWER_MGMT_3, 7, 0,
&wm8350_beep_switch_controls),
SND_SOC_DAPM_ADC("Right ADC", "Right Capture",
WM8350_POWER_MGMT_4, 3, 0),
SND_SOC_DAPM_ADC("Left ADC", "Left Capture",
WM8350_POWER_MGMT_4, 2, 0),
SND_SOC_DAPM_DAC("Right DAC", "Right Playback",
WM8350_POWER_MGMT_4, 5, 0),
SND_SOC_DAPM_DAC("Left DAC", "Left Playback",
WM8350_POWER_MGMT_4, 4, 0),
SND_SOC_DAPM_MICBIAS("Mic Bias", WM8350_POWER_MGMT_1, 4, 0),
SND_SOC_DAPM_MUX("Out4 Capture Channel", SND_SOC_NOPM, 0, 0,
&wm8350_out4_capture_controls),
SND_SOC_DAPM_OUTPUT("OUT1R"),
SND_SOC_DAPM_OUTPUT("OUT1L"),
SND_SOC_DAPM_OUTPUT("OUT2R"),
SND_SOC_DAPM_OUTPUT("OUT2L"),
SND_SOC_DAPM_OUTPUT("OUT3"),
SND_SOC_DAPM_OUTPUT("OUT4"),
SND_SOC_DAPM_INPUT("IN1RN"),
SND_SOC_DAPM_INPUT("IN1RP"),
SND_SOC_DAPM_INPUT("IN2R"),
SND_SOC_DAPM_INPUT("IN1LP"),
SND_SOC_DAPM_INPUT("IN1LN"),
SND_SOC_DAPM_INPUT("IN2L"),
SND_SOC_DAPM_INPUT("IN3R"),
SND_SOC_DAPM_INPUT("IN3L"),
};
static const struct snd_soc_dapm_route audio_map[] = {
/* left playback mixer */
{"Left Playback Mixer", "Playback Switch", "Left DAC"},
{"Left Playback Mixer", "Left Bypass Switch", "IN3L PGA"},
{"Left Playback Mixer", "Right Playback Switch", "Right DAC"},
{"Left Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
{"Left Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},
/* right playback mixer */
{"Right Playback Mixer", "Playback Switch", "Right DAC"},
{"Right Playback Mixer", "Right Bypass Switch", "IN3R PGA"},
{"Right Playback Mixer", "Left Playback Switch", "Left DAC"},
{"Right Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
{"Right Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},
/* out4 playback mixer */
{"Out4 Mixer", "Right Playback Switch", "Right DAC"},
{"Out4 Mixer", "Left Playback Switch", "Left DAC"},
{"Out4 Mixer", "Right Capture Switch", "Right Capture Mixer"},
{"Out4 Mixer", "Out3 Playback Switch", "Out3 Mixer"},
{"Out4 Mixer", "Right Mixer Switch", "Right Playback Mixer"},
{"Out4 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
{"OUT4", NULL, "Out4 Mixer"},
/* out3 playback mixer */
{"Out3 Mixer", "Left Playback Switch", "Left DAC"},
{"Out3 Mixer", "Left Capture Switch", "Left Capture Mixer"},
{"Out3 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
{"Out3 Mixer", "Out4 Playback Switch", "Out4 Mixer"},
{"OUT3", NULL, "Out3 Mixer"},
/* out2 */
{"Right Out2 PGA", NULL, "Right Playback Mixer"},
{"Left Out2 PGA", NULL, "Left Playback Mixer"},
{"OUT2L", NULL, "Left Out2 PGA"},
{"OUT2R", NULL, "Right Out2 PGA"},
/* out1 */
{"Right Out1 PGA", NULL, "Right Playback Mixer"},
{"Left Out1 PGA", NULL, "Left Playback Mixer"},
{"OUT1L", NULL, "Left Out1 PGA"},
{"OUT1R", NULL, "Right Out1 PGA"},
/* ADCs */
{"Left ADC", NULL, "Left Capture Mixer"},
{"Right ADC", NULL, "Right Capture Mixer"},
/* Left capture mixer */
{"Left Capture Mixer", "L2 Capture Volume", "IN2L"},
{"Left Capture Mixer", "L3 Capture Volume", "IN3L PGA"},
{"Left Capture Mixer", "PGA Capture Switch", "Left Mic Mixer"},
{"Left Capture Mixer", NULL, "Out4 Capture Channel"},
/* Right capture mixer */
{"Right Capture Mixer", "L2 Capture Volume", "IN2R"},
{"Right Capture Mixer", "L3 Capture Volume", "IN3R PGA"},
{"Right Capture Mixer", "PGA Capture Switch", "Right Mic Mixer"},
{"Right Capture Mixer", NULL, "Out4 Capture Channel"},
/* L3 Inputs */
{"IN3L PGA", NULL, "IN3L"},
{"IN3R PGA", NULL, "IN3R"},
/* Left Mic mixer */
{"Left Mic Mixer", "INN Capture Switch", "IN1LN"},
{"Left Mic Mixer", "INP Capture Switch", "IN1LP"},
{"Left Mic Mixer", "IN2 Capture Switch", "IN2L"},
/* Right Mic mixer */
{"Right Mic Mixer", "INN Capture Switch", "IN1RN"},
{"Right Mic Mixer", "INP Capture Switch", "IN1RP"},
{"Right Mic Mixer", "IN2 Capture Switch", "IN2R"},
/* out 4 capture */
{"Out4 Capture Channel", NULL, "Out4 Mixer"},
/* Beep */
{"Beep", NULL, "IN3R PGA"},
};
static int wm8350_add_widgets(struct snd_soc_codec *codec)
{
int ret;
ret = snd_soc_dapm_new_controls(codec,
wm8350_dapm_widgets,
ARRAY_SIZE(wm8350_dapm_widgets));
if (ret != 0) {
dev_err(codec->dev, "dapm control register failed\n");
return ret;
}
/* set up audio paths */
ret = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
if (ret != 0) {
dev_err(codec->dev, "DAPM route register failed\n");
return ret;
}
return snd_soc_dapm_new_widgets(codec);
}
static int wm8350_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct wm8350 *wm8350 = codec->control_data;
u16 fll_4;
switch (clk_id) {
case WM8350_MCLK_SEL_MCLK:
wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_1,
WM8350_MCLK_SEL);
break;
case WM8350_MCLK_SEL_PLL_MCLK:
case WM8350_MCLK_SEL_PLL_DAC:
case WM8350_MCLK_SEL_PLL_ADC:
case WM8350_MCLK_SEL_PLL_32K:
wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_1,
WM8350_MCLK_SEL);
fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) &
~WM8350_FLL_CLK_SRC_MASK;
wm8350_codec_write(codec, WM8350_FLL_CONTROL_4, fll_4 | clk_id);
break;
}
/* MCLK direction */
if (dir == WM8350_MCLK_DIR_OUT)
wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_2,
WM8350_MCLK_DIR);
else
wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_2,
WM8350_MCLK_DIR);
return 0;
}
static int wm8350_set_clkdiv(struct snd_soc_dai *codec_dai, int div_id, int div)
{
struct snd_soc_codec *codec = codec_dai->codec;
u16 val;
switch (div_id) {
case WM8350_ADC_CLKDIV:
val = wm8350_codec_read(codec, WM8350_ADC_DIVIDER) &
~WM8350_ADC_CLKDIV_MASK;
wm8350_codec_write(codec, WM8350_ADC_DIVIDER, val | div);
break;
case WM8350_DAC_CLKDIV:
val = wm8350_codec_read(codec, WM8350_DAC_CLOCK_CONTROL) &
~WM8350_DAC_CLKDIV_MASK;
wm8350_codec_write(codec, WM8350_DAC_CLOCK_CONTROL, val | div);
break;
case WM8350_BCLK_CLKDIV:
val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
~WM8350_BCLK_DIV_MASK;
wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
break;
case WM8350_OPCLK_CLKDIV:
val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
~WM8350_OPCLK_DIV_MASK;
wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
break;
case WM8350_SYS_CLKDIV:
val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
~WM8350_MCLK_DIV_MASK;
wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
break;
case WM8350_DACLR_CLKDIV:
val = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) &
~WM8350_DACLRC_RATE_MASK;
wm8350_codec_write(codec, WM8350_DAC_LR_RATE, val | div);
break;
case WM8350_ADCLR_CLKDIV:
val = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) &
~WM8350_ADCLRC_RATE_MASK;
wm8350_codec_write(codec, WM8350_ADC_LR_RATE, val | div);
break;
default:
return -EINVAL;
}
return 0;
}
static int wm8350_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) &
~(WM8350_AIF_BCLK_INV | WM8350_AIF_LRCLK_INV | WM8350_AIF_FMT_MASK);
u16 master = wm8350_codec_read(codec, WM8350_AI_DAC_CONTROL) &
~WM8350_BCLK_MSTR;
u16 dac_lrc = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) &
~WM8350_DACLRC_ENA;
u16 adc_lrc = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) &
~WM8350_ADCLRC_ENA;
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
master |= WM8350_BCLK_MSTR;
dac_lrc |= WM8350_DACLRC_ENA;
adc_lrc |= WM8350_ADCLRC_ENA;
break;
case SND_SOC_DAIFMT_CBS_CFS:
break;
default:
return -EINVAL;
}
/* interface format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
iface |= 0x2 << 8;
break;
case SND_SOC_DAIFMT_RIGHT_J:
break;
case SND_SOC_DAIFMT_LEFT_J:
iface |= 0x1 << 8;
break;
case SND_SOC_DAIFMT_DSP_A:
iface |= 0x3 << 8;
break;
case SND_SOC_DAIFMT_DSP_B:
iface |= 0x3 << 8; /* lg not sure which mode */
break;
default:
return -EINVAL;
}
/* clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
iface |= WM8350_AIF_LRCLK_INV | WM8350_AIF_BCLK_INV;
break;
case SND_SOC_DAIFMT_IB_NF:
iface |= WM8350_AIF_BCLK_INV;
break;
case SND_SOC_DAIFMT_NB_IF:
iface |= WM8350_AIF_LRCLK_INV;
break;
default:
return -EINVAL;
}
wm8350_codec_write(codec, WM8350_AI_FORMATING, iface);
wm8350_codec_write(codec, WM8350_AI_DAC_CONTROL, master);
wm8350_codec_write(codec, WM8350_DAC_LR_RATE, dac_lrc);
wm8350_codec_write(codec, WM8350_ADC_LR_RATE, adc_lrc);
return 0;
}
static int wm8350_pcm_trigger(struct snd_pcm_substream *substream,
int cmd, struct snd_soc_dai *codec_dai)
{
struct snd_soc_codec *codec = codec_dai->codec;
int master = wm8350_codec_cache_read(codec, WM8350_AI_DAC_CONTROL) &
WM8350_BCLK_MSTR;
int enabled = 0;
/* Check that the DACs or ADCs are enabled since they are
* required for LRC in master mode. The DACs or ADCs need a
* valid audio path i.e. pin -> ADC or DAC -> pin before
* the LRC will be enabled in master mode. */
if (!master || cmd != SNDRV_PCM_TRIGGER_START)
return 0;
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) &
(WM8350_ADCR_ENA | WM8350_ADCL_ENA);
} else {
enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) &
(WM8350_DACR_ENA | WM8350_DACL_ENA);
}
if (!enabled) {
dev_err(codec->dev,
"%s: invalid audio path - no clocks available\n",
__func__);
return -EINVAL;
}
return 0;
}
static int wm8350_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *codec_dai)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct wm8350 *wm8350 = codec->control_data;
u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) &
~WM8350_AIF_WL_MASK;
/* bit size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
break;
case SNDRV_PCM_FORMAT_S20_3LE:
iface |= 0x1 << 10;
break;
case SNDRV_PCM_FORMAT_S24_LE:
iface |= 0x2 << 10;
break;
case SNDRV_PCM_FORMAT_S32_LE:
iface |= 0x3 << 10;
break;
}
wm8350_codec_write(codec, WM8350_AI_FORMATING, iface);
/* The sloping stopband filter is recommended for use with
* lower sample rates to improve performance.
*/
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (params_rate(params) < 24000)
wm8350_set_bits(wm8350, WM8350_DAC_MUTE_VOLUME,
WM8350_DAC_SB_FILT);
else
wm8350_clear_bits(wm8350, WM8350_DAC_MUTE_VOLUME,
WM8350_DAC_SB_FILT);
}
return 0;
}
static int wm8350_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
struct wm8350 *wm8350 = codec->control_data;
if (mute)
wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
else
wm8350_clear_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
return 0;
}
/* FLL divisors */
struct _fll_div {
int div; /* FLL_OUTDIV */
int n;
int k;
int ratio; /* FLL_FRATIO */
};
/* The size in bits of the fll divide multiplied by 10
* to allow rounding later */
#define FIXED_FLL_SIZE ((1 << 16) * 10)
static inline int fll_factors(struct _fll_div *fll_div, unsigned int input,
unsigned int output)
{
u64 Kpart;
unsigned int t1, t2, K, Nmod;
if (output >= 2815250 && output <= 3125000)
fll_div->div = 0x4;
else if (output >= 5625000 && output <= 6250000)
fll_div->div = 0x3;
else if (output >= 11250000 && output <= 12500000)
fll_div->div = 0x2;
else if (output >= 22500000 && output <= 25000000)
fll_div->div = 0x1;
else {
printk(KERN_ERR "wm8350: fll freq %d out of range\n", output);
return -EINVAL;
}
if (input > 48000)
fll_div->ratio = 1;
else
fll_div->ratio = 8;
t1 = output * (1 << (fll_div->div + 1));
t2 = input * fll_div->ratio;
fll_div->n = t1 / t2;
Nmod = t1 % t2;
if (Nmod) {
Kpart = FIXED_FLL_SIZE * (long long)Nmod;
do_div(Kpart, t2);
K = Kpart & 0xFFFFFFFF;
/* Check if we need to round */
if ((K % 10) >= 5)
K += 5;
/* Move down to proper range now rounding is done */
K /= 10;
fll_div->k = K;
} else
fll_div->k = 0;
return 0;
}
static int wm8350_set_fll(struct snd_soc_dai *codec_dai,
int pll_id, unsigned int freq_in,
unsigned int freq_out)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct wm8350 *wm8350 = codec->control_data;
struct _fll_div fll_div;
int ret = 0;
u16 fll_1, fll_4;
/* power down FLL - we need to do this for reconfiguration */
wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
WM8350_FLL_ENA | WM8350_FLL_OSC_ENA);
if (freq_out == 0 || freq_in == 0)
return ret;
ret = fll_factors(&fll_div, freq_in, freq_out);
if (ret < 0)
return ret;
dev_dbg(wm8350->dev,
"FLL in %u FLL out %u N 0x%x K 0x%x div %d ratio %d",
freq_in, freq_out, fll_div.n, fll_div.k, fll_div.div,
fll_div.ratio);
/* set up N.K & dividers */
fll_1 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_1) &
~(WM8350_FLL_OUTDIV_MASK | WM8350_FLL_RSP_RATE_MASK | 0xc000);
wm8350_codec_write(codec, WM8350_FLL_CONTROL_1,
fll_1 | (fll_div.div << 8) | 0x50);
wm8350_codec_write(codec, WM8350_FLL_CONTROL_2,
(fll_div.ratio << 11) | (fll_div.
n & WM8350_FLL_N_MASK));
wm8350_codec_write(codec, WM8350_FLL_CONTROL_3, fll_div.k);
fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) &
~(WM8350_FLL_FRAC | WM8350_FLL_SLOW_LOCK_REF);
wm8350_codec_write(codec, WM8350_FLL_CONTROL_4,
fll_4 | (fll_div.k ? WM8350_FLL_FRAC : 0) |
(fll_div.ratio == 8 ? WM8350_FLL_SLOW_LOCK_REF : 0));
/* power FLL on */
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_OSC_ENA);
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA);
return 0;
}
static int wm8350_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct wm8350 *wm8350 = codec->control_data;
struct wm8350_data *priv = codec->private_data;
struct wm8350_audio_platform_data *platform =
wm8350->codec.platform_data;
u16 pm1;
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
pm1 | WM8350_VMID_50K |
platform->codec_current_on << 14);
break;
case SND_SOC_BIAS_PREPARE:
pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1);
pm1 &= ~WM8350_VMID_MASK;
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
pm1 | WM8350_VMID_50K);
break;
case SND_SOC_BIAS_STANDBY:
if (codec->bias_level == SND_SOC_BIAS_OFF) {
ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),
priv->supplies);
if (ret != 0)
return ret;
/* Enable the system clock */
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4,
WM8350_SYSCLK_ENA);
/* mute DAC & outputs */
wm8350_set_bits(wm8350, WM8350_DAC_MUTE,
WM8350_DAC_MUTE_ENA);
/* discharge cap memory */
wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
platform->dis_out1 |
(platform->dis_out2 << 2) |
(platform->dis_out3 << 4) |
(platform->dis_out4 << 6));
/* wait for discharge */
schedule_timeout_interruptible(msecs_to_jiffies
(platform->
cap_discharge_msecs));
/* enable antipop */
wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
(platform->vmid_s_curve << 8));
/* ramp up vmid */
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
(platform->
codec_current_charge << 14) |
WM8350_VMID_5K | WM8350_VMIDEN |
WM8350_VBUFEN);
/* wait for vmid */
schedule_timeout_interruptible(msecs_to_jiffies
(platform->
vmid_charge_msecs));
/* turn on vmid 300k */
pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
pm1 |= WM8350_VMID_300K |
(platform->codec_current_standby << 14);
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
pm1);
/* enable analogue bias */
pm1 |= WM8350_BIASEN;
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);
/* disable antipop */
wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0);
} else {
/* turn on vmid 300k and reduce current */
pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
pm1 | WM8350_VMID_300K |
(platform->
codec_current_standby << 14));
}
break;
case SND_SOC_BIAS_OFF:
/* mute DAC & enable outputs */
wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_3,
WM8350_OUT1L_ENA | WM8350_OUT1R_ENA |
WM8350_OUT2L_ENA | WM8350_OUT2R_ENA);
/* enable anti pop S curve */
wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
(platform->vmid_s_curve << 8));
/* turn off vmid */
pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
~WM8350_VMIDEN;
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);
/* wait */
schedule_timeout_interruptible(msecs_to_jiffies
(platform->
vmid_discharge_msecs));
wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
(platform->vmid_s_curve << 8) |
platform->dis_out1 |
(platform->dis_out2 << 2) |
(platform->dis_out3 << 4) |
(platform->dis_out4 << 6));
/* turn off VBuf and drain */
pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
~(WM8350_VBUFEN | WM8350_VMID_MASK);
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
pm1 | WM8350_OUTPUT_DRAIN_EN);
/* wait */
schedule_timeout_interruptible(msecs_to_jiffies
(platform->drain_msecs));
pm1 &= ~WM8350_BIASEN;
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);
/* disable anti-pop */
wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0);
wm8350_clear_bits(wm8350, WM8350_LOUT1_VOLUME,
WM8350_OUT1L_ENA);
wm8350_clear_bits(wm8350, WM8350_ROUT1_VOLUME,
WM8350_OUT1R_ENA);
wm8350_clear_bits(wm8350, WM8350_LOUT2_VOLUME,
WM8350_OUT2L_ENA);
wm8350_clear_bits(wm8350, WM8350_ROUT2_VOLUME,
WM8350_OUT2R_ENA);
/* disable clock gen */
wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
WM8350_SYSCLK_ENA);
regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
priv->supplies);
break;
}
codec->bias_level = level;
return 0;
}
static int wm8350_suspend(struct platform_device *pdev, pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int wm8350_resume(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
wm8350_set_bias_level(codec, SND_SOC_BIAS_ON);
return 0;
}
static void wm8350_hp_jack_handler(struct wm8350 *wm8350, int irq, void *data)
{
struct wm8350_data *priv = data;
u16 reg;
int report;
int mask;
struct wm8350_jack_data *jack = NULL;
switch (irq) {
case WM8350_IRQ_CODEC_JCK_DET_L:
jack = &priv->hpl;
mask = WM8350_JACK_L_LVL;
break;
case WM8350_IRQ_CODEC_JCK_DET_R:
jack = &priv->hpr;
mask = WM8350_JACK_R_LVL;
break;
default:
BUG();
}
if (!jack->jack) {
dev_warn(wm8350->dev, "Jack interrupt called with no jack\n");
return;
}
/* Debounce */
msleep(200);
reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS);
if (reg & mask)
report = jack->report;
else
report = 0;
snd_soc_jack_report(jack->jack, report, jack->report);
}
/**
* wm8350_hp_jack_detect - Enable headphone jack detection.
*
* @codec: WM8350 codec
* @which: left or right jack detect signal
* @jack: jack to report detection events on
* @report: value to report
*
* Enables the headphone jack detection of the WM8350.
*/
int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which,
struct snd_soc_jack *jack, int report)
{
struct wm8350_data *priv = codec->private_data;
struct wm8350 *wm8350 = codec->control_data;
int irq;
int ena;
switch (which) {
case WM8350_JDL:
priv->hpl.jack = jack;
priv->hpl.report = report;
irq = WM8350_IRQ_CODEC_JCK_DET_L;
ena = WM8350_JDL_ENA;
break;
case WM8350_JDR:
priv->hpr.jack = jack;
priv->hpr.report = report;
irq = WM8350_IRQ_CODEC_JCK_DET_R;
ena = WM8350_JDR_ENA;
break;
default:
return -EINVAL;
}
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA);
wm8350_set_bits(wm8350, WM8350_JACK_DETECT, ena);
/* Sync status */
wm8350_hp_jack_handler(wm8350, irq, priv);
wm8350_unmask_irq(wm8350, irq);
return 0;
}
EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect);
static struct snd_soc_codec *wm8350_codec;
static int wm8350_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec;
struct wm8350 *wm8350;
struct wm8350_data *priv;
int ret;
struct wm8350_output *out1;
struct wm8350_output *out2;
BUG_ON(!wm8350_codec);
socdev->card->codec = wm8350_codec;
codec = socdev->card->codec;
wm8350 = codec->control_data;
priv = codec->private_data;
/* Enable the codec */
wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);
/* Enable robust clocking mode in ADC */
wm8350_codec_write(codec, WM8350_SECURITY, 0xa7);
wm8350_codec_write(codec, 0xde, 0x13);
wm8350_codec_write(codec, WM8350_SECURITY, 0);
/* read OUT1 & OUT2 volumes */
out1 = &priv->out1;
out2 = &priv->out2;
out1->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME) &
WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
out1->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME) &
WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
out2->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME) &
WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
out2->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME) &
WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME, 0);
wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME, 0);
wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME, 0);
wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME, 0);
/* Latch VU bits & mute */
wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME,
WM8350_OUT1_VU | WM8350_OUT1L_MUTE);
wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME,
WM8350_OUT2_VU | WM8350_OUT2L_MUTE);
wm8350_set_bits(wm8350, WM8350_ROUT1_VOLUME,
WM8350_OUT1_VU | WM8350_OUT1R_MUTE);
wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME,
WM8350_OUT2_VU | WM8350_OUT2R_MUTE);
wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L,
wm8350_hp_jack_handler, priv);
wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R,
wm8350_hp_jack_handler, priv);
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to create pcms\n");
return ret;
}
snd_soc_add_controls(codec, wm8350_snd_controls,
ARRAY_SIZE(wm8350_snd_controls));
wm8350_add_widgets(codec);
wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
ret = snd_soc_init_card(socdev);
if (ret < 0) {
dev_err(&pdev->dev, "failed to register card\n");
goto card_err;
}
return 0;
card_err:
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
return ret;
}
static int wm8350_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
struct wm8350 *wm8350 = codec->control_data;
struct wm8350_data *priv = codec->private_data;
int ret;
wm8350_clear_bits(wm8350, WM8350_JACK_DETECT,
WM8350_JDL_ENA | WM8350_JDR_ENA);
wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA);
wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
priv->hpl.jack = NULL;
priv->hpr.jack = NULL;
/* cancel any work waiting to be queued. */
ret = cancel_delayed_work(&codec->delayed_work);
/* if there was any work waiting then we run it now and
* wait for its completion */
if (ret) {
schedule_delayed_work(&codec->delayed_work, 0);
flush_scheduled_work();
}
wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);
wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);
return 0;
}
#define WM8350_RATES (SNDRV_PCM_RATE_8000_96000)
#define WM8350_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
static struct snd_soc_dai_ops wm8350_dai_ops = {
.hw_params = wm8350_pcm_hw_params,
.digital_mute = wm8350_mute,
.trigger = wm8350_pcm_trigger,
.set_fmt = wm8350_set_dai_fmt,
.set_sysclk = wm8350_set_dai_sysclk,
.set_pll = wm8350_set_fll,
.set_clkdiv = wm8350_set_clkdiv,
};
struct snd_soc_dai wm8350_dai = {
.name = "WM8350",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
.rates = WM8350_RATES,
.formats = WM8350_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = WM8350_RATES,
.formats = WM8350_FORMATS,
},
.ops = &wm8350_dai_ops,
};
EXPORT_SYMBOL_GPL(wm8350_dai);
struct snd_soc_codec_device soc_codec_dev_wm8350 = {
.probe = wm8350_probe,
.remove = wm8350_remove,
.suspend = wm8350_suspend,
.resume = wm8350_resume,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm8350);
static __devinit int wm8350_codec_probe(struct platform_device *pdev)
{
struct wm8350 *wm8350 = platform_get_drvdata(pdev);
struct wm8350_data *priv;
struct snd_soc_codec *codec;
int ret, i;
if (wm8350->codec.platform_data == NULL) {
dev_err(&pdev->dev, "No audio platform data supplied\n");
return -EINVAL;
}
priv = kzalloc(sizeof(struct wm8350_data), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(supply_names); i++)
priv->supplies[i].supply = supply_names[i];
ret = regulator_bulk_get(wm8350->dev, ARRAY_SIZE(priv->supplies),
priv->supplies);
if (ret != 0)
goto err_priv;
codec = &priv->codec;
wm8350->codec.codec = codec;
wm8350_dai.dev = &pdev->dev;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
codec->dev = &pdev->dev;
codec->name = "WM8350";
codec->owner = THIS_MODULE;
codec->read = wm8350_codec_read;
codec->write = wm8350_codec_write;
codec->bias_level = SND_SOC_BIAS_OFF;
codec->set_bias_level = wm8350_set_bias_level;
codec->dai = &wm8350_dai;
codec->num_dai = 1;
codec->reg_cache_size = WM8350_MAX_REGISTER;
codec->private_data = priv;
codec->control_data = wm8350;
/* Put the codec into reset if it wasn't already */
wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);
INIT_DELAYED_WORK(&codec->delayed_work, wm8350_pga_work);
ret = snd_soc_register_codec(codec);
if (ret != 0)
goto err_supply;
wm8350_codec = codec;
ret = snd_soc_register_dai(&wm8350_dai);
if (ret != 0)
goto err_codec;
return 0;
err_codec:
snd_soc_unregister_codec(codec);
err_supply:
regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies);
err_priv:
kfree(priv);
wm8350_codec = NULL;
return ret;
}
static int __devexit wm8350_codec_remove(struct platform_device *pdev)
{
struct wm8350 *wm8350 = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = wm8350->codec.codec;
struct wm8350_data *priv = codec->private_data;
snd_soc_unregister_dai(&wm8350_dai);
snd_soc_unregister_codec(codec);
regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies);
kfree(priv);
wm8350_codec = NULL;
return 0;
}
static struct platform_driver wm8350_codec_driver = {
.driver = {
.name = "wm8350-codec",
.owner = THIS_MODULE,
},
.probe = wm8350_codec_probe,
.remove = __devexit_p(wm8350_codec_remove),
};
static __init int wm8350_init(void)
{
return platform_driver_register(&wm8350_codec_driver);
}
module_init(wm8350_init);
static __exit void wm8350_exit(void)
{
platform_driver_unregister(&wm8350_codec_driver);
}
module_exit(wm8350_exit);
MODULE_DESCRIPTION("ASoC WM8350 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:wm8350-codec");
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