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linux/sound/soc/codecs/twl6040.c
Liam Girdwood 08656910bb ASoC: twl6040 - add method to query HS DC offset step size in mV 
Provide a method for mach drivers to query the HS DC offset step size in mV.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-01-20 13:58:26 +00:00

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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/i2c/twl.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"
#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_RAMP_NONE 0
#define TWL6040_RAMP_UP 1
#define TWL6040_RAMP_DOWN 2
#define TWL6040_HSL_VOL_MASK 0x0F
#define TWL6040_HSL_VOL_SHIFT 0
#define TWL6040_HSR_VOL_MASK 0xF0
#define TWL6040_HSR_VOL_SHIFT 4
#define TWL6040_HF_VOL_MASK 0x1F
#define TWL6040_HF_VOL_SHIFT 0
/* Shadow register used by the driver */
#define TWL6040_REG_SW_SHADOW 0x2F
#define TWL6040_CACHEREGNUM (TWL6040_REG_SW_SHADOW + 1)
/* TWL6040_REG_SW_SHADOW (0x2F) fields */
#define TWL6040_EAR_PATH_ENABLE 0x01
struct twl6040_output {
u16 active;
u16 left_vol;
u16 right_vol;
u16 left_step;
u16 right_step;
unsigned int step_delay;
u16 ramp;
struct delayed_work work;
struct completion ramp_done;
};
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;
unsigned int clk_in;
unsigned int sysclk;
u16 hs_left_step;
u16 hs_right_step;
u16 hf_left_step;
u16 hf_right_step;
struct twl6040_jack_data hs_jack;
struct snd_soc_codec *codec;
struct workqueue_struct *workqueue;
struct mutex mutex;
struct twl6040_output headset;
struct twl6040_output handsfree;
};
/*
* twl6040 register cache & default register settings
*/
static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
0x00, /* not used 0x00 */
0x4B, /* REG_ASICID 0x01 (ro) */
0x00, /* REG_ASICREV 0x02 (ro) */
0x00, /* REG_INTID 0x03 */
0x00, /* REG_INTMR 0x04 */
0x00, /* REG_NCPCTRL 0x05 */
0x00, /* REG_LDOCTL 0x06 */
0x60, /* REG_HPPLLCTL 0x07 */
0x00, /* REG_LPPLLCTL 0x08 */
0x4A, /* REG_LPPLLDIV 0x09 */
0x00, /* REG_AMICBCTL 0x0A */
0x00, /* REG_DMICBCTL 0x0B */
0x00, /* REG_MICLCTL 0x0C */
0x00, /* REG_MICRCTL 0x0D */
0x00, /* REG_MICGAIN 0x0E */
0x1B, /* REG_LINEGAIN 0x0F */
0x00, /* REG_HSLCTL 0x10 */
0x00, /* REG_HSRCTL 0x11 */
0x00, /* REG_HSGAIN 0x12 */
0x00, /* REG_EARCTL 0x13 */
0x00, /* REG_HFLCTL 0x14 */
0x00, /* REG_HFLGAIN 0x15 */
0x00, /* REG_HFRCTL 0x16 */
0x00, /* REG_HFRGAIN 0x17 */
0x00, /* REG_VIBCTLL 0x18 */
0x00, /* REG_VIBDATL 0x19 */
0x00, /* REG_VIBCTLR 0x1A */
0x00, /* REG_VIBDATR 0x1B */
0x00, /* REG_HKCTL1 0x1C */
0x00, /* REG_HKCTL2 0x1D */
0x00, /* REG_GPOCTL 0x1E */
0x00, /* REG_ALB 0x1F */
0x00, /* REG_DLB 0x20 */
0x00, /* not used 0x21 */
0x00, /* not used 0x22 */
0x00, /* not used 0x23 */
0x00, /* not used 0x24 */
0x00, /* not used 0x25 */
0x00, /* not used 0x26 */
0x00, /* not used 0x27 */
0x00, /* REG_TRIM1 0x28 */
0x00, /* REG_TRIM2 0x29 */
0x00, /* REG_TRIM3 0x2A */
0x00, /* REG_HSOTRIM 0x2B */
0x00, /* REG_HFOTRIM 0x2C */
0x09, /* REG_ACCCTL 0x2D */
0x00, /* REG_STATUS 0x2E (ro) */
0x00, /* REG_SW_SHADOW 0x2F - Shadow, non HW register */
};
/* List of registers to be restored after power up */
static const int twl6040_restore_list[] = {
TWL6040_REG_MICLCTL,
TWL6040_REG_MICRCTL,
TWL6040_REG_MICGAIN,
TWL6040_REG_LINEGAIN,
TWL6040_REG_HSLCTL,
TWL6040_REG_HSRCTL,
TWL6040_REG_HSGAIN,
TWL6040_REG_EARCTL,
TWL6040_REG_HFLCTL,
TWL6040_REG_HFLGAIN,
TWL6040_REG_HFRCTL,
TWL6040_REG_HFRGAIN,
};
/* set of rates for each pll: low-power and high-performance */
static unsigned int lp_rates[] = {
8000,
11250,
16000,
22500,
32000,
44100,
48000,
88200,
96000,
};
static unsigned int hp_rates[] = {
8000,
16000,
32000,
48000,
96000,
};
static struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
{ .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
{ .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
};
/*
* read twl6040 register cache
*/
static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
unsigned int reg)
{
u8 *cache = codec->reg_cache;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
return cache[reg];
}
/*
* write twl6040 register cache
*/
static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
u8 reg, u8 value)
{
u8 *cache = codec->reg_cache;
if (reg >= TWL6040_CACHEREGNUM)
return;
cache[reg] = value;
}
/*
* read from twl6040 hardware register
*/
static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
unsigned int reg)
{
struct twl6040 *twl6040 = codec->control_data;
u8 value;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
if (likely(reg < TWL6040_REG_SW_SHADOW)) {
value = twl6040_reg_read(twl6040, reg);
twl6040_write_reg_cache(codec, reg, value);
} else {
value = twl6040_read_reg_cache(codec, reg);
}
return value;
}
/*
* write to the twl6040 register space
*/
static int twl6040_write(struct snd_soc_codec *codec,
unsigned int reg, unsigned int value)
{
struct twl6040 *twl6040 = codec->control_data;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
twl6040_write_reg_cache(codec, reg, value);
if (likely(reg < TWL6040_REG_SW_SHADOW))
return twl6040_reg_write(twl6040, reg, value);
else
return 0;
}
static void twl6040_init_chip(struct snd_soc_codec *codec)
{
struct twl6040 *twl6040 = codec->control_data;
u8 val;
/* Update reg_cache: ASICREV, and TRIM values */
val = twl6040_get_revid(twl6040);
twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1);
twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2);
twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3);
twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM);
twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM);
/* Change chip defaults */
/* No imput selected for microphone amplifiers */
twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
twl6040_write_reg_cache(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_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff);
twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e);
twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d);
twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d);
twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0);
}
static void twl6040_restore_regs(struct snd_soc_codec *codec)
{
u8 *cache = codec->reg_cache;
int reg, i;
for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) {
reg = twl6040_restore_list[i];
twl6040_write(codec, reg, cache[reg]);
}
}
/*
* Ramp HS PGA volume to minimise pops at stream startup and shutdown.
*/
static inline int twl6040_hs_ramp_step(struct snd_soc_codec *codec,
unsigned int left_step, unsigned int right_step)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_output *headset = &priv->headset;
int left_complete = 0, right_complete = 0;
u8 reg, val;
/* left channel */
left_step = (left_step > 0xF) ? 0xF : left_step;
reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
val = (~reg & TWL6040_HSL_VOL_MASK);
if (headset->ramp == TWL6040_RAMP_UP) {
/* ramp step up */
if (val < headset->left_vol) {
if (val + left_step > headset->left_vol)
val = headset->left_vol;
else
val += left_step;
reg &= ~TWL6040_HSL_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HSGAIN,
(reg | (~val & TWL6040_HSL_VOL_MASK)));
} else {
left_complete = 1;
}
} else if (headset->ramp == TWL6040_RAMP_DOWN) {
/* ramp step down */
if (val > 0x0) {
if ((int)val - (int)left_step < 0)
val = 0;
else
val -= left_step;
reg &= ~TWL6040_HSL_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HSGAIN, reg |
(~val & TWL6040_HSL_VOL_MASK));
} else {
left_complete = 1;
}
}
/* right channel */
right_step = (right_step > 0xF) ? 0xF : right_step;
reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
val = (~reg & TWL6040_HSR_VOL_MASK) >> TWL6040_HSR_VOL_SHIFT;
if (headset->ramp == TWL6040_RAMP_UP) {
/* ramp step up */
if (val < headset->right_vol) {
if (val + right_step > headset->right_vol)
val = headset->right_vol;
else
val += right_step;
reg &= ~TWL6040_HSR_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HSGAIN,
(reg | (~val << TWL6040_HSR_VOL_SHIFT)));
} else {
right_complete = 1;
}
} else if (headset->ramp == TWL6040_RAMP_DOWN) {
/* ramp step down */
if (val > 0x0) {
if ((int)val - (int)right_step < 0)
val = 0;
else
val -= right_step;
reg &= ~TWL6040_HSR_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HSGAIN,
reg | (~val << TWL6040_HSR_VOL_SHIFT));
} else {
right_complete = 1;
}
}
return left_complete & right_complete;
}
/*
* Ramp HF PGA volume to minimise pops at stream startup and shutdown.
*/
static inline int twl6040_hf_ramp_step(struct snd_soc_codec *codec,
unsigned int left_step, unsigned int right_step)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_output *handsfree = &priv->handsfree;
int left_complete = 0, right_complete = 0;
u16 reg, val;
/* left channel */
left_step = (left_step > 0x1D) ? 0x1D : left_step;
reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFLGAIN);
reg = 0x1D - reg;
val = (reg & TWL6040_HF_VOL_MASK);
if (handsfree->ramp == TWL6040_RAMP_UP) {
/* ramp step up */
if (val < handsfree->left_vol) {
if (val + left_step > handsfree->left_vol)
val = handsfree->left_vol;
else
val += left_step;
reg &= ~TWL6040_HF_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HFLGAIN,
reg | (0x1D - val));
} else {
left_complete = 1;
}
} else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
/* ramp step down */
if (val > 0) {
if ((int)val - (int)left_step < 0)
val = 0;
else
val -= left_step;
reg &= ~TWL6040_HF_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HFLGAIN,
reg | (0x1D - val));
} else {
left_complete = 1;
}
}
/* right channel */
right_step = (right_step > 0x1D) ? 0x1D : right_step;
reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFRGAIN);
reg = 0x1D - reg;
val = (reg & TWL6040_HF_VOL_MASK);
if (handsfree->ramp == TWL6040_RAMP_UP) {
/* ramp step up */
if (val < handsfree->right_vol) {
if (val + right_step > handsfree->right_vol)
val = handsfree->right_vol;
else
val += right_step;
reg &= ~TWL6040_HF_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HFRGAIN,
reg | (0x1D - val));
} else {
right_complete = 1;
}
} else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
/* ramp step down */
if (val > 0) {
if ((int)val - (int)right_step < 0)
val = 0;
else
val -= right_step;
reg &= ~TWL6040_HF_VOL_MASK;
twl6040_write(codec, TWL6040_REG_HFRGAIN,
reg | (0x1D - val));
}
}
return left_complete & right_complete;
}
/*
* This work ramps both output PGAs at stream start/stop time to
* minimise pop associated with DAPM power switching.
*/
static void twl6040_pga_hs_work(struct work_struct *work)
{
struct twl6040_data *priv =
container_of(work, struct twl6040_data, headset.work.work);
struct snd_soc_codec *codec = priv->codec;
struct twl6040_output *headset = &priv->headset;
int i, headset_complete;
/* do we need to ramp at all ? */
if (headset->ramp == TWL6040_RAMP_NONE)
return;
/* HS PGA gain range: 0x0 - 0xf (0 - 15) */
for (i = 0; i < 16; i++) {
headset_complete = twl6040_hs_ramp_step(codec,
headset->left_step,
headset->right_step);
/* ramp finished ? */
if (headset_complete)
break;
schedule_timeout_interruptible(
msecs_to_jiffies(headset->step_delay));
}
if (headset->ramp == TWL6040_RAMP_DOWN) {
headset->active = 0;
complete(&headset->ramp_done);
} else {
headset->active = 1;
}
headset->ramp = TWL6040_RAMP_NONE;
}
static void twl6040_pga_hf_work(struct work_struct *work)
{
struct twl6040_data *priv =
container_of(work, struct twl6040_data, handsfree.work.work);
struct snd_soc_codec *codec = priv->codec;
struct twl6040_output *handsfree = &priv->handsfree;
int i, handsfree_complete;
/* do we need to ramp at all ? */
if (handsfree->ramp == TWL6040_RAMP_NONE)
return;
/*
* HF PGA gain range: 0x00 - 0x1d (0 - 29) */
for (i = 0; i < 30; i++) {
handsfree_complete = twl6040_hf_ramp_step(codec,
handsfree->left_step,
handsfree->right_step);
/* ramp finished ? */
if (handsfree_complete)
break;
schedule_timeout_interruptible(
msecs_to_jiffies(handsfree->step_delay));
}
if (handsfree->ramp == TWL6040_RAMP_DOWN) {
handsfree->active = 0;
complete(&handsfree->ramp_done);
} else
handsfree->active = 1;
handsfree->ramp = TWL6040_RAMP_NONE;
}
static int out_drv_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_output *out;
struct delayed_work *work;
switch (w->shift) {
case 2: /* Headset output driver */
out = &priv->headset;
work = &out->work;
/*
* Make sure, that we do not mess up variables for already
* executing work.
*/
cancel_delayed_work_sync(work);
out->left_step = priv->hs_left_step;
out->right_step = priv->hs_right_step;
out->step_delay = 5; /* 5 ms between volume ramp steps */
break;
case 4: /* Handsfree output driver */
out = &priv->handsfree;
work = &out->work;
/*
* Make sure, that we do not mess up variables for already
* executing work.
*/
cancel_delayed_work_sync(work);
out->left_step = priv->hf_left_step;
out->right_step = priv->hf_right_step;
out->step_delay = 5; /* 5 ms between volume ramp steps */
break;
default:
return -1;
}
switch (event) {
case SND_SOC_DAPM_POST_PMU:
if (out->active)
break;
/* don't use volume ramp for power-up */
out->ramp = TWL6040_RAMP_UP;
out->left_step = out->left_vol;
out->right_step = out->right_vol;
queue_delayed_work(priv->workqueue, work, msecs_to_jiffies(1));
break;
case SND_SOC_DAPM_PRE_PMD:
if (!out->active)
break;
/* use volume ramp for power-down */
out->ramp = TWL6040_RAMP_DOWN;
INIT_COMPLETION(out->ramp_done);
queue_delayed_work(priv->workqueue, work, msecs_to_jiffies(1));
wait_for_completion_timeout(&out->ramp_done,
msecs_to_jiffies(2000));
break;
}
return 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_reg_cache(codec, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read_reg_cache(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 = w->codec;
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_reg_cache(codec, TWL6040_REG_HSLCTL);
hsrctl = twl6040_read_reg_cache(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 = w->codec;
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_reg_volatile(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(priv->workqueue, &priv->hs_jack.work,
msecs_to_jiffies(200));
return IRQ_HANDLED;
}
static int twl6040_put_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_output *out = NULL;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
int ret;
/* For HS and HF 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 (mc->reg) {
case TWL6040_REG_HSGAIN:
out = &twl6040_priv->headset;
break;
case TWL6040_REG_HFLGAIN:
out = &twl6040_priv->handsfree;
break;
default:
dev_warn(codec->dev, "%s: Unexpected register: 0x%02x\n",
__func__, mc->reg);
return -EINVAL;
}
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(kcontrol, ucontrol);
if (ret < 0)
return ret;
return 1;
}
static int twl6040_get_volsw(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_output *out = &twl6040_priv->headset;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
switch (mc->reg) {
case TWL6040_REG_HSGAIN:
out = &twl6040_priv->headset;
break;
case TWL6040_REG_HFLGAIN:
out = &twl6040_priv->handsfree;
break;
default:
dev_warn(codec->dev, "%s: Unexpected register: 0x%02x\n",
__func__, mc->reg);
return -EINVAL;
}
ucontrol->value.integer.value[0] = out->left_vol;
ucontrol->value.integer.value[1] = out->right_vol;
return 0;
}
static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
struct snd_soc_dapm_widget *widget = wlist->widgets[0];
struct snd_soc_codec *codec = widget->codec;
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_reg_volatile(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, 4, twl6040_amicl_texts),
SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, 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("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
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-Perfomance",
};
static const struct soc_enum twl6040_power_mode_enum =
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
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_kcontrol_chip(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_kcontrol_chip(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_kcontrol_chip(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_kcontrol_chip(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 = &codec->dapm;
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 = snd_soc_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_reg_cache(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 = codec->control_data;
if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_2)
/* 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_EXT_TLV("Headset Playback Volume",
TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, twl6040_get_volsw,
twl6040_put_volsw, hs_tlv),
SOC_DOUBLE_R_EXT_TLV("Handsfree Playback Volume",
TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1,
twl6040_get_volsw, twl6040_put_volsw, 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),
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", "Left Front Capture",
TWL6040_REG_MICLCTL, 2, 0),
SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
TWL6040_REG_MICRCTL, 2, 0),
/* Microphone bias */
SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
TWL6040_REG_AMICBCTL, 0, 0),
SND_SOC_DAPM_MICBIAS("Main Mic Bias",
TWL6040_REG_AMICBCTL, 4, 0),
SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
TWL6040_REG_DMICBCTL, 0, 0),
SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
TWL6040_REG_DMICBCTL, 4, 0),
/* DACs */
SND_SOC_DAPM_DAC("HSDAC Left", "Headset Playback", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("HSDAC Right", "Headset Playback", SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("HFDAC Left", "Handsfree Playback",
TWL6040_REG_HFLCTL, 0, 0),
SND_SOC_DAPM_DAC("HFDAC Right", "Handsfree Playback",
TWL6040_REG_HFRCTL, 0, 0),
/* Virtual DAC for vibra path (DL4 channel) */
SND_SOC_DAPM_DAC("VIBRA DAC", "Vibra Playback",
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_E("HF Left Driver",
TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
out_drv_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("HF Right Driver",
TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
out_drv_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("HS Left Driver",
TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
out_drv_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("HS Right Driver",
TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
out_drv_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
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[] = {
/* 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 = codec->control_data;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered)
break;
ret = twl6040_power(twl6040, 1);
if (ret)
return ret;
priv->codec_powered = 1;
twl6040_restore_regs(codec);
/* 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;
}
codec->dapm.bias_level = level;
return 0;
}
static int twl6040_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->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_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->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_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
struct twl6040 *twl6040 = codec->control_data;
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 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,
};
static struct snd_soc_dai_driver twl6040_dai[] = {
{
.name = "twl6040-legacy",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 5,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-ul",
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-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",
.playback = {
.stream_name = "Handsfree Playback",
.channels_min = 1,
.channels_max = 2,
.rates = TWL6040_RATES,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
{
.name = "twl6040-vib",
.playback = {
.stream_name = "Vibra Playback",
.channels_min = 1,
.channels_max = 1,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = TWL6040_FORMATS,
},
.ops = &twl6040_dai_ops,
},
};
#ifdef CONFIG_PM
static int twl6040_suspend(struct snd_soc_codec *codec)
{
twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int twl6040_resume(struct snd_soc_codec *codec)
{
twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
return 0;
}
#else
#define twl6040_suspend NULL
#define twl6040_resume NULL
#endif
static int twl6040_probe(struct snd_soc_codec *codec)
{
struct twl6040_data *priv;
struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev);
struct platform_device *pdev = container_of(codec->dev,
struct platform_device, dev);
int ret = 0;
priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
snd_soc_codec_set_drvdata(codec, priv);
priv->codec = codec;
codec->control_data = dev_get_drvdata(codec->dev->parent);
codec->ignore_pmdown_time = 1;
if (pdata && pdata->hs_left_step && pdata->hs_right_step) {
priv->hs_left_step = pdata->hs_left_step;
priv->hs_right_step = pdata->hs_right_step;
} else {
priv->hs_left_step = 1;
priv->hs_right_step = 1;
}
if (pdata && pdata->hf_left_step && pdata->hf_right_step) {
priv->hf_left_step = pdata->hf_left_step;
priv->hf_right_step = pdata->hf_right_step;
} else {
priv->hf_left_step = 1;
priv->hf_right_step = 1;
}
priv->plug_irq = platform_get_irq(pdev, 0);
if (priv->plug_irq < 0) {
dev_err(codec->dev, "invalid irq\n");
ret = -EINVAL;
goto work_err;
}
priv->workqueue = alloc_workqueue("twl6040-codec", 0, 0);
if (!priv->workqueue) {
ret = -ENOMEM;
goto work_err;
}
INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
INIT_DELAYED_WORK(&priv->headset.work, twl6040_pga_hs_work);
INIT_DELAYED_WORK(&priv->handsfree.work, twl6040_pga_hf_work);
mutex_init(&priv->mutex);
init_completion(&priv->headset.ramp_done);
init_completion(&priv->handsfree.ramp_done);
ret = request_threaded_irq(priv->plug_irq, NULL, twl6040_audio_handler,
0, "twl6040_irq_plug", codec);
if (ret) {
dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
goto plugirq_err;
}
twl6040_init_chip(codec);
/* power on device */
ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
if (!ret)
return 0;
/* Error path */
free_irq(priv->plug_irq, codec);
plugirq_err:
destroy_workqueue(priv->workqueue);
work_err:
kfree(priv);
return ret;
}
static int twl6040_remove(struct snd_soc_codec *codec)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
free_irq(priv->plug_irq, codec);
destroy_workqueue(priv->workqueue);
kfree(priv);
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
.probe = twl6040_probe,
.remove = twl6040_remove,
.suspend = twl6040_suspend,
.resume = twl6040_resume,
.read = twl6040_read_reg_cache,
.write = twl6040_write,
.set_bias_level = twl6040_set_bias_level,
.reg_cache_size = ARRAY_SIZE(twl6040_reg),
.reg_word_size = sizeof(u8),
.reg_cache_default = twl6040_reg,
.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 __devinit 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 __devexit 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",
.owner = THIS_MODULE,
},
.probe = twl6040_codec_probe,
.remove = __devexit_p(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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