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linux-stable/sound/soc/codecs/twl6040.c
Tony Lindgren 8146acff3b
ASoC: Fix twl4030 and 6040 regression by adding back read and write 
Commit 3bb0f7c31b ("ASoC: don't use snd_soc_write/read on twl4030")
caused regressions for both twl4030 and twl6040 as it assumes the
ASoC driver is using regmap. As a side effect, this also causes a
considerable increase in idle power consumption omap3 boards using
twl4030 as the PMIC.

This is because the removal of read and write function pointers
causes some of the ASoC IO functions to not do anything. For example,
snd_soc_register_card() calls snd_soc_dapm_new_widgets() that calls
snd_soc_codec_drv_read() that now does nothing.

A long term solution suggested by Mark Brown <broonie@kernel.org>
is to make the twl drivers use regmap by adding a call to
snd_soc_codec_set_regmap(). This however needs more consideration
as currently the driver internal reads do caching and we would have
both regmap access and internal read/write access accessing the same
hardware registers.

So to fix the regression, let's just do a partial revert adding back
the read and write function pointers. Note that other non-regmap
ASoC drivers may need similar patches.

Fixes: 3bb0f7c31b ("ASoC: don't use snd_soc_write/read on twl4030")
Fixes: 93a00c467f ("ASoC: don't use snd_soc_write/read on twl6040")
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-25 18:20:26 +00:00

1201 lines
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/*
* ALSA SoC TWL6040 codec driver
*
* Author: Misael Lopez Cruz <x0052729@ti.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#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/slab.h>
#include <linux/mfd/twl6040.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 "twl6040.h"
enum twl6040_dai_id {
TWL6040_DAI_LEGACY = 0,
TWL6040_DAI_UL,
TWL6040_DAI_DL1,
TWL6040_DAI_DL2,
TWL6040_DAI_VIB,
};
#define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
#define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
#define TWL6040_OUTHS_0dB 0x00
#define TWL6040_OUTHS_M30dB 0x0F
#define TWL6040_OUTHF_0dB 0x03
#define TWL6040_OUTHF_M52dB 0x1D
#define TWL6040_CACHEREGNUM (TWL6040_REG_STATUS + 1)
struct twl6040_jack_data {
struct snd_soc_jack *jack;
struct delayed_work work;
int report;
};
/* codec private data */
struct twl6040_data {
int plug_irq;
int codec_powered;
int pll;
int pll_power_mode;
int hs_power_mode;
int hs_power_mode_locked;
bool dl1_unmuted;
bool dl2_unmuted;
u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1];
unsigned int clk_in;
unsigned int sysclk;
struct twl6040_jack_data hs_jack;
struct snd_soc_codec *codec;
struct mutex mutex;
};
/* set of rates for each pll: low-power and high-performance */
static const unsigned int lp_rates[] = {
8000,
11250,
16000,
22500,
32000,
44100,
48000,
88200,
96000,
};
static const unsigned int hp_rates[] = {
8000,
16000,
32000,
48000,
96000,
};
static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
{ .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
{ .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
};
#define to_twl6040(codec) dev_get_drvdata((codec)->dev->parent)
static unsigned int twl6040_read(struct snd_soc_codec *codec, unsigned int reg)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
struct twl6040 *twl6040 = to_twl6040(codec);
u8 value;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
switch (reg) {
case TWL6040_REG_HSLCTL:
case TWL6040_REG_HSRCTL:
case TWL6040_REG_EARCTL:
case TWL6040_REG_HFLCTL:
case TWL6040_REG_HFRCTL:
value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
break;
default:
value = twl6040_reg_read(twl6040, reg);
break;
}
return value;
}
static bool twl6040_can_write_to_chip(struct snd_soc_codec *codec,
unsigned int reg)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
switch (reg) {
case TWL6040_REG_HSLCTL:
case TWL6040_REG_HSRCTL:
case TWL6040_REG_EARCTL:
/* DL1 path */
return priv->dl1_unmuted;
case TWL6040_REG_HFLCTL:
case TWL6040_REG_HFRCTL:
return priv->dl2_unmuted;
default:
return 1;
}
}
static inline void twl6040_update_dl12_cache(struct snd_soc_codec *codec,
u8 reg, u8 value)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
switch (reg) {
case TWL6040_REG_HSLCTL:
case TWL6040_REG_HSRCTL:
case TWL6040_REG_EARCTL:
case TWL6040_REG_HFLCTL:
case TWL6040_REG_HFRCTL:
priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
break;
default:
break;
}
}
static int twl6040_write(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
struct twl6040 *twl6040 = to_twl6040(codec);
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
twl6040_update_dl12_cache(codec, reg, value);
if (twl6040_can_write_to_chip(codec, reg))
return twl6040_reg_write(twl6040, reg, value);
else
return 0;
}
static void twl6040_init_chip(struct snd_soc_codec *codec)
{
twl6040_read(codec, TWL6040_REG_TRIM1);
twl6040_read(codec, TWL6040_REG_TRIM2);
twl6040_read(codec, TWL6040_REG_TRIM3);
twl6040_read(codec, TWL6040_REG_HSOTRIM);
twl6040_read(codec, TWL6040_REG_HFOTRIM);
/* Change chip defaults */
/* No imput selected for microphone amplifiers */
twl6040_write(codec, TWL6040_REG_MICLCTL, 0x18);
twl6040_write(codec, TWL6040_REG_MICRCTL, 0x18);
/*
* We need to lower the default gain values, so the ramp code
* can work correctly for the first playback.
* This reduces the pop noise heard at the first playback.
*/
twl6040_write(codec, TWL6040_REG_HSGAIN, 0xff);
twl6040_write(codec, TWL6040_REG_EARCTL, 0x1e);
twl6040_write(codec, TWL6040_REG_HFLGAIN, 0x1d);
twl6040_write(codec, TWL6040_REG_HFRGAIN, 0x1d);
twl6040_write(codec, TWL6040_REG_LINEGAIN, 0);
}
/* set headset dac and driver power mode */
static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
{
int hslctl, hsrctl;
int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
if (high_perf) {
hslctl &= ~mask;
hsrctl &= ~mask;
} else {
hslctl |= mask;
hsrctl |= mask;
}
twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
return 0;
}
static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
u8 hslctl, hsrctl;
/*
* Workaround for Headset DC offset caused pop noise:
* Both HS DAC need to be turned on (before the HS driver) and off at
* the same time.
*/
hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
if (SND_SOC_DAPM_EVENT_ON(event)) {
hslctl |= TWL6040_HSDACENA;
hsrctl |= TWL6040_HSDACENA;
} else {
hslctl &= ~TWL6040_HSDACENA;
hsrctl &= ~TWL6040_HSDACENA;
}
twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
msleep(1);
return 0;
}
static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int ret = 0;
if (SND_SOC_DAPM_EVENT_ON(event)) {
/* Earphone doesn't support low power mode */
priv->hs_power_mode_locked = 1;
ret = headset_power_mode(codec, 1);
} else {
priv->hs_power_mode_locked = 0;
ret = headset_power_mode(codec, priv->hs_power_mode);
}
msleep(1);
return ret;
}
static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
struct snd_soc_jack *jack, int report)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int status;
mutex_lock(&priv->mutex);
/* Sync status */
status = twl6040_read(codec, TWL6040_REG_STATUS);
if (status & TWL6040_PLUGCOMP)
snd_soc_jack_report(jack, report, report);
else
snd_soc_jack_report(jack, 0, report);
mutex_unlock(&priv->mutex);
}
void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack, int report)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_jack_data *hs_jack = &priv->hs_jack;
hs_jack->jack = jack;
hs_jack->report = report;
twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
}
EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
static void twl6040_accessory_work(struct work_struct *work)
{
struct twl6040_data *priv = container_of(work,
struct twl6040_data, hs_jack.work.work);
struct snd_soc_codec *codec = priv->codec;
struct twl6040_jack_data *hs_jack = &priv->hs_jack;
twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
}
/* audio interrupt handler */
static irqreturn_t twl6040_audio_handler(int irq, void *data)
{
struct snd_soc_codec *codec = data;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
queue_delayed_work(system_power_efficient_wq,
&priv->hs_jack.work, msecs_to_jiffies(200));
return IRQ_HANDLED;
}
static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int val;
/* Do not allow changes while Input/FF efect is running */
val = twl6040_read(codec, e->reg);
if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
return -EBUSY;
return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
}
/*
* MICATT volume control:
* from -6 to 0 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
/*
* MICGAIN volume control:
* from 6 to 30 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
/*
* AFMGAIN volume control:
* from -18 to 24 dB in 6 dB steps
*/
static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
/*
* HSGAIN volume control:
* from -30 to 0 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
/*
* HFGAIN volume control:
* from -52 to 6 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
/*
* EPGAIN volume control:
* from -24 to 6 dB in 2 dB steps
*/
static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
/* Left analog microphone selection */
static const char *twl6040_amicl_texts[] =
{"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
/* Right analog microphone selection */
static const char *twl6040_amicr_texts[] =
{"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
static const struct soc_enum twl6040_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3,
ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3,
ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
};
static const char *twl6040_hs_texts[] = {
"Off", "HS DAC", "Line-In amp"
};
static const struct soc_enum twl6040_hs_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
twl6040_hs_texts),
SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
twl6040_hs_texts),
};
static const char *twl6040_hf_texts[] = {
"Off", "HF DAC", "Line-In amp"
};
static const struct soc_enum twl6040_hf_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
twl6040_hf_texts),
SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
twl6040_hf_texts),
};
static const char *twl6040_vibrapath_texts[] = {
"Input FF", "Audio PDM"
};
static const struct soc_enum twl6040_vibra_enum[] = {
SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
ARRAY_SIZE(twl6040_vibrapath_texts),
twl6040_vibrapath_texts),
SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
ARRAY_SIZE(twl6040_vibrapath_texts),
twl6040_vibrapath_texts),
};
static const struct snd_kcontrol_new amicl_control =
SOC_DAPM_ENUM("Route", twl6040_enum[0]);
static const struct snd_kcontrol_new amicr_control =
SOC_DAPM_ENUM("Route", twl6040_enum[1]);
/* Headset DAC playback switches */
static const struct snd_kcontrol_new hsl_mux_controls =
SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
static const struct snd_kcontrol_new hsr_mux_controls =
SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
/* Handsfree DAC playback switches */
static const struct snd_kcontrol_new hfl_mux_controls =
SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
static const struct snd_kcontrol_new hfr_mux_controls =
SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
static const struct snd_kcontrol_new ep_path_enable_control =
SOC_DAPM_SINGLE_VIRT("Switch", 1);
static const struct snd_kcontrol_new auxl_switch_control =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
static const struct snd_kcontrol_new auxr_switch_control =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
/* Vibra playback switches */
static const struct snd_kcontrol_new vibral_mux_controls =
SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
snd_soc_dapm_get_enum_double,
twl6040_soc_dapm_put_vibra_enum);
static const struct snd_kcontrol_new vibrar_mux_controls =
SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
snd_soc_dapm_get_enum_double,
twl6040_soc_dapm_put_vibra_enum);
/* Headset power mode */
static const char *twl6040_power_mode_texts[] = {
"Low-Power", "High-Performance",
};
static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
twl6040_power_mode_texts);
static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
return 0;
}
static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int high_perf = ucontrol->value.enumerated.item[0];
int ret = 0;
if (!priv->hs_power_mode_locked)
ret = headset_power_mode(codec, high_perf);
if (!ret)
priv->hs_power_mode = high_perf;
return ret;
}
static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
return 0;
}
static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
priv->pll_power_mode = ucontrol->value.enumerated.item[0];
return 0;
}
int twl6040_get_dl1_gain(struct snd_soc_codec *codec)
{
struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
if (snd_soc_dapm_get_pin_status(dapm, "EP"))
return -1; /* -1dB */
if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
u8 val = twl6040_read(codec, TWL6040_REG_HSLCTL);
if (val & TWL6040_HSDACMODE)
/* HSDACL in LP mode */
return -8; /* -8dB */
else
/* HSDACL in HP mode */
return -1; /* -1dB */
}
return 0; /* 0dB */
}
EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
int twl6040_get_clk_id(struct snd_soc_codec *codec)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
return priv->pll_power_mode;
}
EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
{
if (unlikely(trim >= TWL6040_TRIM_INVAL))
return -EINVAL;
return twl6040_read(codec, TWL6040_REG_TRIM1 + trim);
}
EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
{
struct twl6040 *twl6040 = to_twl6040(codec);
if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
/* For ES under ES_1.3 HS step is 2 mV */
return 2;
else
/* For ES_1.3 HS step is 1 mV */
return 1;
}
EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
static const struct snd_kcontrol_new twl6040_snd_controls[] = {
/* Capture gains */
SOC_DOUBLE_TLV("Capture Preamplifier Volume",
TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
SOC_DOUBLE_TLV("Capture Volume",
TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
/* AFM gains */
SOC_DOUBLE_TLV("Aux FM Volume",
TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
/* Playback gains */
SOC_DOUBLE_TLV("Headset Playback Volume",
TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
SOC_SINGLE_TLV("Earphone Playback Volume",
TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
twl6040_headset_power_get_enum,
twl6040_headset_power_put_enum),
/* Left HS PDM data routed to Right HSDAC */
SOC_SINGLE("Headset Mono to Stereo Playback Switch",
TWL6040_REG_HSRCTL, 7, 1, 0),
/* Left HF PDM data routed to Right HFDAC */
SOC_SINGLE("Handsfree Mono to Stereo Playback Switch",
TWL6040_REG_HFRCTL, 5, 1, 0),
SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
twl6040_pll_get_enum, twl6040_pll_put_enum),
};
static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
/* Inputs */
SND_SOC_DAPM_INPUT("MAINMIC"),
SND_SOC_DAPM_INPUT("HSMIC"),
SND_SOC_DAPM_INPUT("SUBMIC"),
SND_SOC_DAPM_INPUT("AFML"),
SND_SOC_DAPM_INPUT("AFMR"),
/* Outputs */
SND_SOC_DAPM_OUTPUT("HSOL"),
SND_SOC_DAPM_OUTPUT("HSOR"),
SND_SOC_DAPM_OUTPUT("HFL"),
SND_SOC_DAPM_OUTPUT("HFR"),
SND_SOC_DAPM_OUTPUT("EP"),
SND_SOC_DAPM_OUTPUT("AUXL"),
SND_SOC_DAPM_OUTPUT("AUXR"),
SND_SOC_DAPM_OUTPUT("VIBRAL"),
SND_SOC_DAPM_OUTPUT("VIBRAR"),
/* Analog input muxes for the capture amplifiers */
SND_SOC_DAPM_MUX("Analog Left Capture Route",
SND_SOC_NOPM, 0, 0, &amicl_control),
SND_SOC_DAPM_MUX("Analog Right Capture Route",
SND_SOC_NOPM, 0, 0, &amicr_control),
/* Analog capture PGAs */
SND_SOC_DAPM_PGA("MicAmpL",
TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("MicAmpR",
TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
/* Auxiliary FM PGAs */
SND_SOC_DAPM_PGA("AFMAmpL",
TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("AFMAmpR",
TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
/* ADCs */
SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
/* Microphone bias */
SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("Main Mic Bias",
TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
/* DACs */
SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
/* Virtual DAC for vibra path (DL4 channel) */
SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_MUX("Handsfree Left Playback",
SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
SND_SOC_DAPM_MUX("Handsfree Right Playback",
SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
/* Analog playback Muxes */
SND_SOC_DAPM_MUX("Headset Left Playback",
SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
SND_SOC_DAPM_MUX("Headset Right Playback",
SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
&vibral_mux_controls),
SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
&vibrar_mux_controls),
SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
&ep_path_enable_control),
SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
&auxl_switch_control),
SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
&auxr_switch_control),
/* Analog playback drivers */
SND_SOC_DAPM_OUT_DRV("HF Left Driver",
TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
SND_SOC_DAPM_OUT_DRV("HF Right Driver",
TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
SND_SOC_DAPM_OUT_DRV("HS Left Driver",
TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
SND_SOC_DAPM_OUT_DRV("HS Right Driver",
TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
TWL6040_REG_EARCTL, 0, 0, NULL, 0,
twl6040_ep_drv_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
NULL, 0),
SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
twl6040_hs_dac_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
/* Analog playback PGAs */
SND_SOC_DAPM_PGA("HF Left PGA",
TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("HF Right PGA",
TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
};
static const struct snd_soc_dapm_route intercon[] = {
/* Stream -> DAC mapping */
{"HSDAC Left", NULL, "Legacy Playback"},
{"HSDAC Left", NULL, "Headset Playback"},
{"HSDAC Right", NULL, "Legacy Playback"},
{"HSDAC Right", NULL, "Headset Playback"},
{"HFDAC Left", NULL, "Legacy Playback"},
{"HFDAC Left", NULL, "Handsfree Playback"},
{"HFDAC Right", NULL, "Legacy Playback"},
{"HFDAC Right", NULL, "Handsfree Playback"},
{"VIBRA DAC", NULL, "Legacy Playback"},
{"VIBRA DAC", NULL, "Vibra Playback"},
/* ADC -> Stream mapping */
{"Legacy Capture" , NULL, "ADC Left"},
{"Capture", NULL, "ADC Left"},
{"Legacy Capture", NULL, "ADC Right"},
{"Capture" , NULL, "ADC Right"},
/* Capture path */
{"Analog Left Capture Route", "Headset Mic", "HSMIC"},
{"Analog Left Capture Route", "Main Mic", "MAINMIC"},
{"Analog Left Capture Route", "Aux/FM Left", "AFML"},
{"Analog Right Capture Route", "Headset Mic", "HSMIC"},
{"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
{"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
{"MicAmpL", NULL, "Analog Left Capture Route"},
{"MicAmpR", NULL, "Analog Right Capture Route"},
{"ADC Left", NULL, "MicAmpL"},
{"ADC Right", NULL, "MicAmpR"},
/* AFM path */
{"AFMAmpL", NULL, "AFML"},
{"AFMAmpR", NULL, "AFMR"},
{"HSDAC Left", NULL, "HSDAC Power"},
{"HSDAC Right", NULL, "HSDAC Power"},
{"Headset Left Playback", "HS DAC", "HSDAC Left"},
{"Headset Left Playback", "Line-In amp", "AFMAmpL"},
{"Headset Right Playback", "HS DAC", "HSDAC Right"},
{"Headset Right Playback", "Line-In amp", "AFMAmpR"},
{"HS Left Driver", NULL, "Headset Left Playback"},
{"HS Right Driver", NULL, "Headset Right Playback"},
{"HSOL", NULL, "HS Left Driver"},
{"HSOR", NULL, "HS Right Driver"},
/* Earphone playback path */
{"Earphone Playback", "Switch", "HSDAC Left"},
{"Earphone Driver", NULL, "Earphone Playback"},
{"EP", NULL, "Earphone Driver"},
{"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
{"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
{"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
{"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
{"HF Left PGA", NULL, "Handsfree Left Playback"},
{"HF Right PGA", NULL, "Handsfree Right Playback"},
{"HF Left Driver", NULL, "HF Left PGA"},
{"HF Right Driver", NULL, "HF Right PGA"},
{"HFL", NULL, "HF Left Driver"},
{"HFR", NULL, "HF Right Driver"},
{"AUXL Playback", "Switch", "HF Left PGA"},
{"AUXR Playback", "Switch", "HF Right PGA"},
{"AUXL", NULL, "AUXL Playback"},
{"AUXR", NULL, "AUXR Playback"},
/* Vibrator paths */
{"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
{"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
{"Vibra Left Driver", NULL, "Vibra Left Playback"},
{"Vibra Right Driver", NULL, "Vibra Right Playback"},
{"Vibra Left Driver", NULL, "Vibra Left Control"},
{"Vibra Right Driver", NULL, "Vibra Right Control"},
{"VIBRAL", NULL, "Vibra Left Driver"},
{"VIBRAR", NULL, "Vibra Right Driver"},
};
static int twl6040_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct twl6040 *twl6040 = to_twl6040(codec);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int ret = 0;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered) {
/* Select low power PLL in standby */
ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
32768, 19200000);
break;
}
ret = twl6040_power(twl6040, 1);
if (ret)
break;
priv->codec_powered = 1;
/* Set external boost GPO */
twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
break;
case SND_SOC_BIAS_OFF:
if (!priv->codec_powered)
break;
twl6040_power(twl6040, 0);
priv->codec_powered = 0;
break;
}
return ret;
}
static int twl6040_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&sysclk_constraints[priv->pll_power_mode]);
return 0;
}
static int twl6040_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int rate;
rate = params_rate(params);
switch (rate) {
case 11250:
case 22500:
case 44100:
case 88200:
/* These rates are not supported when HPPLL is in use */
if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
dev_err(codec->dev, "HPPLL does not support rate %d\n",
rate);
return -EINVAL;
}
priv->sysclk = 17640000;
break;
case 8000:
case 16000:
case 32000:
case 48000:
case 96000:
priv->sysclk = 19200000;
break;
default:
dev_err(codec->dev, "unsupported rate %d\n", rate);
return -EINVAL;
}
return 0;
}
static int twl6040_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct twl6040 *twl6040 = to_twl6040(codec);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int ret;
if (!priv->sysclk) {
dev_err(codec->dev,
"no mclk configured, call set_sysclk() on init\n");
return -EINVAL;
}
ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
if (ret) {
dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
return -EPERM;
}
return 0;
}
static int twl6040_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 twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
switch (clk_id) {
case TWL6040_SYSCLK_SEL_LPPLL:
case TWL6040_SYSCLK_SEL_HPPLL:
priv->pll = clk_id;
priv->clk_in = freq;
break;
default:
dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
return -EINVAL;
}
return 0;
}
static void twl6040_mute_path(struct snd_soc_codec *codec, enum twl6040_dai_id id,
int mute)
{
struct twl6040 *twl6040 = to_twl6040(codec);
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int hslctl, hsrctl, earctl;
int hflctl, hfrctl;
switch (id) {
case TWL6040_DAI_DL1:
hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
earctl = twl6040_read(codec, TWL6040_REG_EARCTL);
if (mute) {
/* Power down drivers and DACs */
earctl &= ~0x01;
hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
}
twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
priv->dl1_unmuted = !mute;
break;
case TWL6040_DAI_DL2:
hflctl = twl6040_read(codec, TWL6040_REG_HFLCTL);
hfrctl = twl6040_read(codec, TWL6040_REG_HFRCTL);
if (mute) {
/* Power down drivers and DACs */
hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
TWL6040_HFDRVENA | TWL6040_HFSWENA);
hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
TWL6040_HFDRVENA | TWL6040_HFSWENA);
}
twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
priv->dl2_unmuted = !mute;
break;
default:
break;
}
}
static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
{
switch (dai->id) {
case TWL6040_DAI_LEGACY:
twl6040_mute_path(dai->codec, TWL6040_DAI_DL1, mute);
twl6040_mute_path(dai->codec, TWL6040_DAI_DL2, mute);
break;
case TWL6040_DAI_DL1:
case TWL6040_DAI_DL2:
twl6040_mute_path(dai->codec, dai->id, mute);
break;
default:
break;
}
return 0;
}
static const struct snd_soc_dai_ops twl6040_dai_ops = {
.startup = twl6040_startup,
.hw_params = twl6040_hw_params,
.prepare = twl6040_prepare,
.set_sysclk = twl6040_set_dai_sysclk,
.digital_mute = twl6040_digital_mute,
};
static struct snd_soc_dai_driver twl6040_dai[] = {
{
.name = "twl6040-legacy",
.id = TWL6040_DAI_LEGACY,
.playback = {
.stream_name = "Legacy Playback",
.channels_min = 1,
.channels_max = 5,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.capture = {
.stream_name = "Legacy Capture",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-ul",
.id = TWL6040_DAI_UL,
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-dl1",
.id = TWL6040_DAI_DL1,
.playback = {
.stream_name = "Headset Playback",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-dl2",
.id = TWL6040_DAI_DL2,
.playback = {
.stream_name = "Handsfree Playback",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-vib",
.id = TWL6040_DAI_VIB,
.playback = {
.stream_name = "Vibra Playback",
.channels_min = 1,
.channels_max = 1,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
};
static int twl6040_probe(struct snd_soc_codec *codec)
{
struct twl6040_data *priv;
struct platform_device *pdev = to_platform_device(codec->dev);
int ret = 0;
priv = devm_kzalloc(codec->dev, sizeof(*priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
snd_soc_codec_set_drvdata(codec, priv);
priv->codec = codec;
priv->plug_irq = platform_get_irq(pdev, 0);
if (priv->plug_irq < 0) {
dev_err(codec->dev, "invalid irq: %d\n", priv->plug_irq);
return priv->plug_irq;
}
INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
mutex_init(&priv->mutex);
ret = request_threaded_irq(priv->plug_irq, NULL,
twl6040_audio_handler,
IRQF_NO_SUSPEND | IRQF_ONESHOT,
"twl6040_irq_plug", codec);
if (ret) {
dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
return ret;
}
snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
twl6040_init_chip(codec);
return 0;
}
static int twl6040_remove(struct snd_soc_codec *codec)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
free_irq(priv->plug_irq, codec);
return 0;
}
static const struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
.probe = twl6040_probe,
.remove = twl6040_remove,
.read = twl6040_read,
.write = twl6040_write,
.set_bias_level = twl6040_set_bias_level,
.suspend_bias_off = true,
.ignore_pmdown_time = true,
.component_driver = {
.controls = twl6040_snd_controls,
.num_controls = ARRAY_SIZE(twl6040_snd_controls),
.dapm_widgets = twl6040_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
.dapm_routes = intercon,
.num_dapm_routes = ARRAY_SIZE(intercon),
},
};
static int twl6040_codec_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
twl6040_dai, ARRAY_SIZE(twl6040_dai));
}
static int twl6040_codec_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver twl6040_codec_driver = {
.driver = {
.name = "twl6040-codec",
},
.probe = twl6040_codec_probe,
.remove = twl6040_codec_remove,
};
module_platform_driver(twl6040_codec_driver);
MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
MODULE_AUTHOR("Misael Lopez Cruz");
MODULE_LICENSE("GPL");
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