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linux-stable/sound/soc/codecs/twl6040.c
Peter Ujfalusi 35dec69757 ASoC: twl6040: Request core to inline the DAPM sequence 
We need to have as less time between McPDM shutdown,
and power down of the DAC on the twl6040 codec as possible.
Request core to ignore the pmdown_time for the playback
stream.
Backround: with the McPDM protocol we are sendning not only
the pure audio stream, but OMAP McPDM also transmits
additional information (for example offset cancellation).
If McPDM is stopped prior to the DAC this information will
be not sent to the codec, which can result noise rendered
by the twl6040 codec.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-10-14 20:42:21 +01:00

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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/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_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);
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 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, pm_message_t state)
{
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),
};
static int __init twl6040_codec_init(void)
{
return platform_driver_register(&twl6040_codec_driver);
}
module_init(twl6040_codec_init);
static void __exit twl6040_codec_exit(void)
{
platform_driver_unregister(&twl6040_codec_driver);
}
module_exit(twl6040_codec_exit);
MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
MODULE_AUTHOR("Misael Lopez Cruz");
MODULE_LICENSE("GPL");
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