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linux/sound/soc/codecs/wm8350.c
Mark Brown f1e887de2d ASoC: Don't reconfigure WM8350 FLL if not needed 
If the requested FLL configuration is the one we're currently running
in it's at best pointless to reconfigure the FLL.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-08-26 15:27:57 +01:00

1725 lines
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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)];
int fll_freq_out;
int fll_freq_in;
};
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 wm8350_data *priv = codec->private_data;
struct _fll_div fll_div;
int ret = 0;
u16 fll_1, fll_4;
if (freq_in == priv->fll_freq_in && freq_out == priv->fll_freq_out)
return 0;
/* 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);
priv->fll_freq_out = freq_out;
priv->fll_freq_in = freq_in;
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;
}
#ifdef CONFIG_PM
static int wm8350_codec_suspend(struct platform_device *pdev, pm_message_t m)
{
return snd_soc_suspend_device(&pdev->dev);
}
static int wm8350_codec_resume(struct platform_device *pdev)
{
return snd_soc_resume_device(&pdev->dev);
}
#else
#define wm8350_codec_suspend NULL
#define wm8350_codec_resume NULL
#endif
static struct platform_driver wm8350_codec_driver = {
.driver = {
.name = "wm8350-codec",
.owner = THIS_MODULE,
},
.probe = wm8350_codec_probe,
.remove = __devexit_p(wm8350_codec_remove),
.suspend = wm8350_codec_suspend,
.resume = wm8350_codec_resume,
};
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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