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android / kernel / omap / glass-omap-xrr02 / . / sound / soc / codecs / twl6040.c
blob: 1b6908c6ecc02b0204c427772ae021b32d0aae23 [file] [log] [blame]
/*
* 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/i2c.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/wakelock.h>
#include <linux/i2c/twl.h>
#include <linux/switch.h>
#include <linux/mfd/twl6040-codec.h>
#include <linux/regulator/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/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
#define TWL6040_EP_VOL_MASK 0x1E
#define TWL6040_EP_VOL_SHIFT 1
struct twl6040_output {
u16 active;
u16 left_vol;
u16 right_vol;
u16 left_step;
u16 right_step;
unsigned int step_delay;
u16 ramp;
u16 mute;
struct completion ramp_done;
};
struct twl6040_jack_data {
struct snd_soc_jack *jack;
int report;
struct switch_dev sdev;
};
/* codec private data */
struct twl6040_data {
struct wake_lock wake_lock;
int codec_powered;
int pll;
int power_mode_forced;
int headset_mode;
unsigned int clk_in;
unsigned int sysclk;
struct regulator *vddhf_reg;
u16 hs_left_step;
u16 hs_right_step;
u16 hf_left_step;
u16 hf_right_step;
u16 ep_step;
struct snd_pcm_hw_constraint_list *sysclk_constraints;
struct twl6040_jack_data hs_jack;
struct snd_soc_codec *codec;
struct workqueue_struct *workqueue;
struct delayed_work delayed_work;
struct mutex mutex;
int hfdrv;
struct twl6040_output headset;
struct twl6040_output earphone;
struct twl6040_output handsfree;
struct workqueue_struct *hf_workqueue;
struct workqueue_struct *hs_workqueue;
struct workqueue_struct *ep_workqueue;
struct delayed_work hs_delayed_work;
struct delayed_work hf_delayed_work;
struct delayed_work ep_delayed_work;
};
/*
* twl6040 register cache & default register settings
*/
static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
0x00, /* not used 0x00 */
0x4B, /* TWL6040_ASICID (ro) 0x01 */
0x00, /* TWL6040_ASICREV (ro) 0x02 */
0x00, /* TWL6040_INTID 0x03 */
0x00, /* TWL6040_INTMR 0x04 */
0x00, /* TWL6040_NCPCTRL 0x05 */
0x00, /* TWL6040_LDOCTL 0x06 */
0x60, /* TWL6040_HPPLLCTL 0x07 */
0x00, /* TWL6040_LPPLLCTL 0x08 */
0x4A, /* TWL6040_LPPLLDIV 0x09 */
0x00, /* TWL6040_AMICBCTL 0x0A */
0x00, /* TWL6040_DMICBCTL 0x0B */
0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
0x00, /* TWL6040_MICGAIN 0x0E */
0x1B, /* TWL6040_LINEGAIN 0x0F */
0x00, /* TWL6040_HSLCTL 0x10 */
0x00, /* TWL6040_HSRCTL 0x11 */
0xFF, /* TWL6040_HSGAIN 0x12 */
0x1E, /* TWL6040_EARCTL 0x13 */
0x00, /* TWL6040_HFLCTL 0x14 */
0x1D, /* TWL6040_HFLGAIN 0x15 */
0x00, /* TWL6040_HFRCTL 0x16 */
0x1D, /* TWL6040_HFRGAIN 0x17 */
0x00, /* TWL6040_VIBCTLL 0x18 */
0x00, /* TWL6040_VIBDATL 0x19 */
0x00, /* TWL6040_VIBCTLR 0x1A */
0x00, /* TWL6040_VIBDATR 0x1B */
0x00, /* TWL6040_HKCTL1 0x1C */
0x00, /* TWL6040_HKCTL2 0x1D */
0x00, /* TWL6040_GPOCTL 0x1E */
0x00, /* TWL6040_ALB 0x1F */
0x00, /* TWL6040_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, /* TWL6040_TRIM1 0x28 */
0x00, /* TWL6040_TRIM2 0x29 */
0x00, /* TWL6040_TRIM3 0x2A */
0x00, /* TWL6040_HSOTRIM 0x2B */
0x00, /* TWL6040_HFOTRIM 0x2C */
0x09, /* TWL6040_ACCCTL 0x2D */
0x00, /* TWL6040_STATUS (ro) 0x2E */
};
/* twl6040 vio/gnd registers: registers under vio/gnd supply can be accessed
* twl6040 vdd/vss registers: registers under vdd/vss supplies can only be
* accessed after the power-up sequence */
static const u8 twl6040_reg_supply[TWL6040_CACHEREGNUM] = {
TWL6040_NO_SUPPLY, /* not used */
TWL6040_VIO_SUPPLY, /* TWL6040_ASICID (ro) */
TWL6040_VIO_SUPPLY, /* TWL6040_ASICREV (ro) */
TWL6040_VIO_SUPPLY, /* TWL6040_INTID */
TWL6040_VIO_SUPPLY, /* TWL6040_INTMR */
TWL6040_VIO_SUPPLY, /* TWL6040_NCPCTRL */
TWL6040_VIO_SUPPLY, /* TWL6040_LDOCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_HPPLLCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_LPPLLCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_LPPLLDIV */
TWL6040_VIO_SUPPLY, /* TWL6040_AMICBCTL */
TWL6040_VIO_SUPPLY, /* TWL6040_DMICBCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_MICLCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_MICRCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_MICGAIN */
TWL6040_VDD_SUPPLY, /* TWL6040_LINEGAIN */
TWL6040_VDD_SUPPLY, /* TWL6040_HSLCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_HSRCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_HSGAIN */
TWL6040_VDD_SUPPLY, /* TWL6040_EARCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_HFLCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_HFLGAIN */
TWL6040_VDD_SUPPLY, /* TWL6040_HFRCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_HFRGAIN */
TWL6040_VDD_SUPPLY, /* TWL6040_VIBCTLL */
TWL6040_VDD_SUPPLY, /* TWL6040_VIBDATL */
TWL6040_VDD_SUPPLY, /* TWL6040_VIBCTLR */
TWL6040_VDD_SUPPLY, /* TWL6040_VIBDATR */
TWL6040_VIO_SUPPLY, /* TWL6040_HKCTL1 */
TWL6040_VIO_SUPPLY, /* TWL6040_HKCTL2 */
TWL6040_VIO_SUPPLY, /* TWL6040_GPOCTL */
TWL6040_VDD_SUPPLY, /* TWL6040_ALB */
TWL6040_VDD_SUPPLY, /* TWL6040_DLB */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_NO_SUPPLY, /* not used */
TWL6040_VIO_SUPPLY, /* TWL6040_TRIM1 */
TWL6040_VIO_SUPPLY, /* TWL6040_TRIM2 */
TWL6040_VIO_SUPPLY, /* TWL6040_TRIM3 */
TWL6040_VIO_SUPPLY, /* TWL6040_HSOTRIM */
TWL6040_VIO_SUPPLY, /* TWL6040_HFOTRIM */
TWL6040_VIO_SUPPLY, /* TWL6040_ACCCTL */
TWL6040_VIO_SUPPLY, /* TWL6040_STATUS (ro) */
};
/*
* 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;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
u8 value = 0;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
/* read access not supported while in sleep state */
if ((twl6040_reg_supply[reg] == TWL6040_VDD_SUPPLY) &&
!priv->codec_powered)
return -EINVAL;
value = twl6040_reg_read(twl6040, reg);
twl6040_write_reg_cache(codec, reg, value);
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;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
int ret = 0;
if (reg >= TWL6040_CACHEREGNUM)
return -EIO;
twl6040_write_reg_cache(codec, reg, value);
if ((twl6040_reg_supply[reg] == TWL6040_VIO_SUPPLY) ||
priv->codec_powered)
ret = twl6040_reg_write(twl6040, reg, value);
else
dev_dbg(codec->dev, "deferring register 0x%02x write: %02x\n",
reg, value);
return ret;
}
static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
{
u8 *cache = codec->reg_cache;
int reg;
for (reg = 0; reg < TWL6040_CACHEREGNUM; reg++) {
if (twl6040_reg_supply[reg] != TWL6040_VIO_SUPPLY)
continue;
/*
* skip read-only registers (ASICID, ASICREV, STATUS)
* and registers shared among MFD children
*/
switch (reg) {
case TWL6040_REG_ASICID:
case TWL6040_REG_ASICREV:
case TWL6040_REG_INTID:
case TWL6040_REG_INTMR:
case TWL6040_REG_NCPCTL:
case TWL6040_REG_LDOCTL:
case TWL6040_REG_GPOCTL:
case TWL6040_REG_ACCCTL:
case TWL6040_REG_STATUS:
continue;
case TWL6040_REG_HSOTRIM:
case TWL6040_REG_HFOTRIM:
twl6040_read_reg_volatile(codec, reg);
continue;
default:
break;
}
twl6040_write(codec, reg, cache[reg]);
}
}
static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
{
u8 *cache = codec->reg_cache;
int reg;
for (reg = 0; reg < TWL6040_CACHEREGNUM; reg++) {
if (twl6040_reg_supply[reg] != TWL6040_VDD_SUPPLY)
continue;
/* skip vibra and pll registers */
switch (reg) {
case TWL6040_REG_VIBCTLL:
case TWL6040_REG_VIBDATL:
case TWL6040_REG_VIBCTLR:
case TWL6040_REG_VIBDATR:
case TWL6040_REG_HPPLLCTL:
case TWL6040_REG_LPPLLCTL:
case TWL6040_REG_LPPLLDIV:
continue;
default:
break;
}
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));
} else {
right_complete = 1;
}
}
return left_complete & right_complete;
}
/*
* Ramp Earpiece PGA volume to minimise pops at stream startup and shutdown.
*/
static inline int twl6040_ep_ramp_step(struct snd_soc_codec *codec,
unsigned int step)
{
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
struct twl6040_output *earphone = &priv->earphone;
int complete = 0;
u8 reg, val;
step = (step > 0xF) ? 0xF : step;
reg = twl6040_read_reg_cache(codec, TWL6040_REG_EARCTL);
val = (~reg & TWL6040_EP_VOL_MASK) >> TWL6040_EP_VOL_SHIFT;
if (earphone->ramp == TWL6040_RAMP_UP) {
/* ramp step up */
if (val < earphone->left_vol) {
if (val + step > earphone->left_vol)
val = earphone->left_vol;
else
val += step;
reg &= ~TWL6040_EP_VOL_MASK;
val = ~val << TWL6040_EP_VOL_SHIFT;
twl6040_write(codec, TWL6040_REG_EARCTL,
reg | (val & TWL6040_EP_VOL_MASK));
} else {
complete = 1;
}
} else if (earphone->ramp == TWL6040_RAMP_DOWN) {
/* ramp step down */
if (val > 0x0) {
if ((int)val - (int)step < 0)
val = 0;
else
val -= step;
reg &= ~TWL6040_EP_VOL_MASK;
val = ~val << TWL6040_EP_VOL_SHIFT;
twl6040_write(codec, TWL6040_REG_EARCTL,
reg | (val & TWL6040_EP_VOL_MASK));
} else {
complete = 1;
}
}
return 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, hs_delayed_work.work);
struct snd_soc_codec *codec = priv->codec;
struct twl6040_output *headset = &priv->headset;
unsigned int delay = headset->step_delay;
int i, headset_complete;
/* do we need to ramp at all ? */
if (headset->ramp == TWL6040_RAMP_NONE)
return;
/* HS PGA volumes have 4 bits of resolution to ramp */
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;
/*
* TODO: tune: delay is longer over 0dB
* as increases are larger.
*/
if (i >= 8)
schedule_timeout_interruptible(msecs_to_jiffies(delay +
(delay >> 1)));
else
schedule_timeout_interruptible(msecs_to_jiffies(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, hf_delayed_work.work);
struct snd_soc_codec *codec = priv->codec;
struct twl6040_output *handsfree = &priv->handsfree;
unsigned int delay = handsfree->step_delay;
int i, handsfree_complete;
/* do we need to ramp at all ? */
if (handsfree->ramp == TWL6040_RAMP_NONE)
return;
/* HF PGA volumes have 5 bits of resolution to ramp */
for (i = 0; i <= 32; i++) {
handsfree_complete = twl6040_hf_ramp_step(codec,
handsfree->left_step,
handsfree->right_step);
/* ramp finished ? */
if (handsfree_complete)
break;
/*
* TODO: tune: delay is longer over 0dB
* as increases are larger.
*/
if (i >= 16)
schedule_timeout_interruptible(msecs_to_jiffies(delay +
(delay >> 1)));
else
schedule_timeout_interruptible(msecs_to_jiffies(delay));
}
if (handsfree->ramp == TWL6040_RAMP_DOWN) {
handsfree->active = 0;
complete(&handsfree->ramp_done);
} else
handsfree->active = 1;
handsfree->ramp = TWL6040_RAMP_NONE;
}
static void twl6040_pga_ep_work(struct work_struct *work)
{
struct twl6040_data *priv =
container_of(work, struct twl6040_data, ep_delayed_work.work);
struct snd_soc_codec *codec = priv->codec;
struct twl6040_output *earphone = &priv->earphone;
unsigned int delay = earphone->step_delay;
int i, earphone_complete;
/* do we need to ramp at all ? */
if (earphone->ramp == TWL6040_RAMP_NONE)
return;
/* Earpiece PGA volumes have 4 bits of resolution to ramp */
for (i = 0; i <= 16; i++) {
earphone_complete = twl6040_ep_ramp_step(codec,
earphone->left_step);
/* ramp finished ? */
if (earphone_complete)
break;
/*
* TODO: tune: delay is longer over 0dB
* as increases are larger.
*/
if (i >= 8)
schedule_timeout_interruptible(msecs_to_jiffies(delay +
(delay >> 1)));
else
schedule_timeout_interruptible(msecs_to_jiffies(delay));
}
if (earphone->ramp == TWL6040_RAMP_DOWN) {
earphone->active = 0;
complete(&earphone->ramp_done);
} else {
earphone->active = 1;
}
earphone->ramp = TWL6040_RAMP_NONE;
}
static int pga_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;
struct workqueue_struct *queue;
switch (w->shift) {
case 0:
out = &priv->earphone;
work = &priv->ep_delayed_work;
queue = priv->ep_workqueue;
out->left_step = priv->ep_step;
out->step_delay = 5; /* 5 ms between volume ramp steps */
break;
case 2:
case 3:
out = &priv->headset;
work = &priv->hs_delayed_work;
queue = priv->hs_workqueue;
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:
out = &priv->handsfree;
work = &priv->hf_delayed_work;
queue = priv->hf_workqueue;
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->left_step = out->left_vol;
out->right_step = out->right_vol;
if (!delayed_work_pending(work)) {
out->ramp = TWL6040_RAMP_UP;
queue_delayed_work(queue, work,
msecs_to_jiffies(1));
}
break;
case SND_SOC_DAPM_PRE_PMD:
if (!out->active)
break;
if (!delayed_work_pending(work)) {
/* use volume ramp for power-down */
out->ramp = TWL6040_RAMP_DOWN;
INIT_COMPLETION(out->ramp_done);
queue_delayed_work(queue, 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_HSDRVMODEL | TWL6040_HSDACMODEL;
int val;
hslctl = snd_soc_read(codec, TWL6040_REG_HSLCTL);
hsrctl = snd_soc_read(codec, TWL6040_REG_HSRCTL);
if ((hslctl & TWL6040_HSDACENAL) || (hsrctl & TWL6040_HSDACENAR)) {
dev_err(codec->dev,
"mode change not allowed when HSDACs are active\n");
return -EPERM;
}
if (high_perf)
val = 0;
else
val = mask;
snd_soc_update_bits(codec, TWL6040_REG_HSLCTL, mask, val);
snd_soc_update_bits(codec, TWL6040_REG_HSRCTL, mask, val);
return 0;
}
static int twl6040_hs_dac_left_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
struct twl6040 *twl6040 = codec->control_data;
int hsrctl;
/* SW Workaround for DC Offset On EAR Differential Output Errata */
if (twl6040_get_icrev(twl6040) <= TWL6041_REV_2_0) {
hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
/* HSDACL reset is done when HSDACR is enabled */
twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL,
hsrctl | TWL6040_HSDACENAR);
break;
case SND_SOC_DAPM_POST_PMU:
/* Sync HSDACR with reg cache */
twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
/* Fall through */
case SND_SOC_DAPM_POST_PMD:
/* HSDAC settling time */
usleep_range(80, 200);
break;
default:
break;
}
}
return 0;
}
static int twl6040_hs_dac_right_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
struct twl6040 *twl6040 = codec->control_data;
int hslctl;
/* SW Workaround for DC Offset On EAR Differential Output Errata */
if (twl6040_get_icrev(twl6040) < TWL6040_REV_1_3) {
hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
switch (event) {
case SND_SOC_DAPM_PRE_PMD:
/* HSDACR reset is done when HSDACL is enabled */
twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL,
hslctl | TWL6040_HSDACENAL);
break;
case SND_SOC_DAPM_POST_PMD:
/* Sync HSDACL with reg cache */
twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
/* Fall through */
case SND_SOC_DAPM_POST_PMU:
/* HSDAC settling time */
usleep_range(80, 200);
break;
default:
break;
}
}
return 0;
}
static int twl6040_hf_dac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
/* HFDAC settling time */
usleep_range(80, 200);
return 0;
}
static int twl6040_ep_mode_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->power_mode_forced = 1;
ret = headset_power_mode(codec, 1);
} else {
priv->power_mode_forced = 0;
ret = headset_power_mode(codec, priv->headset_mode);
}
return ret;
}
static int twl6040_hf_boost_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;
if (!priv->vddhf_reg)
return 0;
if (SND_SOC_DAPM_EVENT_ON(event)) {
ret = regulator_enable(priv->vddhf_reg);
if (ret) {
dev_err(codec->dev, "failed to enable "
"VDDHF regulator %d\n", ret);
return ret;
}
} else {
ret = regulator_disable(priv->vddhf_reg);
if (ret) {
dev_err(codec->dev, "failed to disable "
"VDDHF regulator %d\n", ret);
return ret;
}
}
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, state = 0;
mutex_lock(&priv->mutex);
/* Sync status */
status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
// if (status & TWL6040_PLUGCOMP)
// state = report;
// TODO(petermalkin): For now have the headset always on
// Whenever Russ gives me a signal from headset,
// place the real code here
state = report;
mutex_unlock(&priv->mutex);
snd_soc_jack_report(jack, state, report);
if (&priv->hs_jack.sdev)
switch_set_state(&priv->hs_jack.sdev, !!state);
}
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, delayed_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 *twl6040 = codec->control_data;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
u8 intid, val;
intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT)) {
wake_lock_timeout(&priv->wake_lock, 2 * HZ);
queue_delayed_work(priv->workqueue, &priv->delayed_work,
msecs_to_jiffies(200));
}
if (intid & TWL6040_HFINT) {
val = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
if (val & TWL6040_HFLOCDET)
dev_err(codec->dev, "Left Handsfree overcurrent\n");
if (val & TWL6040_HFROCDET)
dev_err(codec->dev, "Right Handsfree overcurrent\n");
val = twl6040_read_reg_cache(codec, TWL6040_REG_HFLCTL);
twl6040_write(codec, TWL6040_REG_HFLCTL,
val & ~TWL6040_HFDRVENAL);
val = twl6040_read_reg_cache(codec, TWL6040_REG_HFRCTL);
twl6040_write(codec, TWL6040_REG_HFRCTL,
val & ~TWL6040_HFDRVENAR);
twl6040_report_event(twl6040, TWL6040_HFOC_EVENT);
}
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;
unsigned int reg = mc->reg;
/* For HS and EP we shadow the values and only actually write
* them out when active in order to ensure the amplifier comes on
* as quietly as possible. */
switch (reg) {
case TWL6040_REG_HSGAIN:
out = &twl6040_priv->headset;
break;
case TWL6040_REG_EARCTL:
out = &twl6040_priv->earphone;
break;
default:
break;
}
if (out) {
out->left_vol = ucontrol->value.integer.value[0];
out->right_vol = ucontrol->value.integer.value[1];
if (!out->active)
return 1;
}
ret = snd_soc_put_volsw(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;
unsigned int reg = mc->reg;
switch (reg) {
case TWL6040_REG_HSGAIN:
out = &twl6040_priv->headset;
ucontrol->value.integer.value[0] = out->left_vol;
ucontrol->value.integer.value[1] = out->right_vol;
return 0;
case TWL6040_REG_EARCTL:
out = &twl6040_priv->earphone;
ucontrol->value.integer.value[0] = out->left_vol;
return 0;
default:
break;
}
return snd_soc_get_volsw(kcontrol, ucontrol);
}
static int twl6040_put_volsw_2r_vu(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;
unsigned int reg = mc->reg;
/* 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 (reg) {
case TWL6040_REG_HFLGAIN:
case TWL6040_REG_HFRGAIN:
out = &twl6040_priv->handsfree;
break;
default:
break;
}
if (out) {
out->left_vol = ucontrol->value.integer.value[0];
out->right_vol = ucontrol->value.integer.value[1];
if (!out->active)
return 1;
}
ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
if (ret < 0)
return ret;
return 1;
}
static int twl6040_get_volsw_2r(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->handsfree;
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
unsigned int reg = mc->reg;
/* If these are cached registers use the cache */
switch (reg) {
case TWL6040_REG_HFLGAIN:
case TWL6040_REG_HFRGAIN:
out = &twl6040_priv->handsfree;
ucontrol->value.integer.value[0] = out->left_vol;
ucontrol->value.integer.value[1] = out->right_vol;
return 0;
default:
break;
}
return snd_soc_get_volsw_2r(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 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_driver_switch_controls =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
static const struct snd_kcontrol_new auxl_switch_controls =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
static const struct snd_kcontrol_new auxr_switch_controls =
SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
/* Headset power mode */
static const char *twl6040_headset_power_texts[] = {
"Low-Power", "High-Performance",
};
static const struct soc_enum twl6040_headset_power_enum =
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_headset_power_texts),
twl6040_headset_power_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->headset_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;
if (priv->power_mode_forced)
return -EPERM;
ret = headset_power_mode(codec, high_perf);
if (!ret)
priv->headset_mode = high_perf;
return ret;
}
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_2r, twl6040_put_volsw_2r_vu, hf_tlv),
SOC_SINGLE_EXT_TLV("Earphone Playback Volume",
TWL6040_REG_EARCTL, 1, 0xF, 1,
twl6040_get_volsw, twl6040_put_volsw, ep_tlv),
SOC_ENUM_EXT("Headset Power Mode", twl6040_headset_power_enum,
twl6040_headset_power_get_enum,
twl6040_headset_power_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"),
/* 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_E("HSDAC Left", "Headset Playback",
TWL6040_REG_HSLCTL, 0, 0,
twl6040_hs_dac_left_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
TWL6040_REG_HSRCTL, 0, 0,
twl6040_hs_dac_right_event,
SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
TWL6040_REG_HFLCTL, 0, 0,
twl6040_hf_dac_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
TWL6040_REG_HFRCTL, 0, 0,
twl6040_hf_dac_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
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),
/* Analog playback drivers */
SND_SOC_DAPM_SWITCH("Aux Left Playback",
SND_SOC_NOPM, 0, 0, &auxl_switch_controls),
SND_SOC_DAPM_SWITCH("Aux Right Playback",
SND_SOC_NOPM, 0, 0, &auxr_switch_controls),
SND_SOC_DAPM_OUT_DRV_E("Handsfree Left Driver",
TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("Handsfree Right Driver",
TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("Headset Left Driver",
TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUT_DRV_E("Headset Right Driver",
TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SUPPLY("Handsfree Left Boost Supply", SND_SOC_NOPM, 0, 0,
twl6040_hf_boost_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SUPPLY("Handsfree Right Boost Supply", SND_SOC_NOPM, 0, 0,
twl6040_hf_boost_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_SWITCH("Earphone Playback",
SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls),
SND_SOC_DAPM_SUPPLY("Earphone Power Mode", SND_SOC_NOPM, 0, 0,
twl6040_ep_mode_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
SND_SOC_NOPM, 0, 0, NULL, 0,
pga_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
/* Analog playback PGAs */
SND_SOC_DAPM_PGA("HFDAC Left PGA",
TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA("HFDAC 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"},
{"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"},
{"Headset Left Driver", "NULL", "Headset Left Playback"},
{"Headset Right Driver", "NULL", "Headset Right Playback"},
{"HSOL", NULL, "Headset Left Driver"},
{"HSOR", NULL, "Headset Right Driver"},
/* Earphone playback path */
{"Earphone Playback", "Switch", "HSDAC Left"},
{"Earphone Playback", NULL, "Earphone Power Mode"},
{"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"},
{"HFDAC Left PGA", NULL, "Handsfree Left Playback"},
{"HFDAC Right PGA", NULL, "Handsfree Right Playback"},
{"Aux Left Playback", "Switch", "HFDAC Left PGA"},
{"Aux Right Playback", "Switch", "HFDAC Right PGA"},
{"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
{"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
{"Handsfree Left Driver", NULL, "Handsfree Left Boost Supply"},
{"Handsfree Right Driver", NULL, "Handsfree Right Boost Supply"},
{"HFL", NULL, "Handsfree Left Driver"},
{"HFR", NULL, "Handsfree Right Driver"},
{"AUXL", NULL, "Aux Left Playback"},
{"AUXR", NULL, "Aux Right Playback"},
};
static int twl6040_add_widgets(struct snd_soc_codec *codec)
{
struct snd_soc_dapm_context *dapm = &codec->dapm;
snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
ARRAY_SIZE(twl6040_dapm_widgets));
snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
snd_soc_dapm_new_widgets(dapm);
return 0;
}
/* 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 struct snd_pcm_hw_constraint_list lp_constraints = {
.count = ARRAY_SIZE(lp_rates),
.list = lp_rates,
};
static unsigned int hp_rates[] = {
8000,
16000,
32000,
44100,
48000,
96000,
};
static struct snd_pcm_hw_constraint_list hp_constraints = {
.count = ARRAY_SIZE(hp_rates),
.list = hp_rates,
};
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);
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
if (priv->codec_powered)
break;
twl6040_enable(twl6040);
priv->codec_powered = 1;
priv->sysclk_constraints = &lp_constraints;
/* initialize vdd/vss registers with reg_cache */
twl6040_init_vdd_regs(codec);
break;
case SND_SOC_BIAS_OFF:
if (!priv->codec_powered)
break;
twl6040_disable(twl6040);
priv->codec_powered = 0;
break;
}
codec->dapm.bias_level = level;
/* get pll and sysclk after power transition */
priv->pll = twl6040_get_pll(twl6040);
priv->sysclk = twl6040_get_sysclk(twl6040);
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,
priv->sysclk_constraints);
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 *twl6040 = codec->control_data;
struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
unsigned int sysclk;
int rate;
int ret;
rate = params_rate(params);
switch (rate) {
case 11250:
case 22500:
case 88200:
sysclk = 17640000;
break;
case 8000:
case 16000:
case 32000:
case 44100:
case 48000:
case 96000:
sysclk = 19200000;
break;
default:
dev_err(codec->dev, "unsupported rate %d\n", rate);
return -EINVAL;
}
ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, sysclk);
if (ret) {
dev_err(codec->dev, "failed to configure PLL %d", ret);
return ret;
}
priv->sysclk = sysclk;
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_data *priv = snd_soc_codec_get_drvdata(codec);
if (!priv->sysclk) {
dev_err(codec->dev,
"no mclk configured, call set_sysclk() on init\n");
return -EINVAL;
}
/*
* In the capture, the Analog path should be turn on and stabilized
* before McPDM prepare itself to avoid pop noises.
* So the codec startup event is sending through dapm in prepare itself
* to ensure that the codec analog path is up before McPDM Uplink FIFO
* is going to be activated.
*/
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
snd_soc_dapm_codec_stream_event(dai->codec,
dai->driver->capture.stream_name,
SND_SOC_DAPM_STREAM_START);
msleep(150);
}
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_LPPLL_ID:
priv->sysclk_constraints = &lp_constraints;
break;
case TWL6040_HPPLL_ID:
priv->sysclk_constraints = &hp_constraints;
break;
default:
dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
return -EINVAL;
}
priv->pll = clk_id;
priv->clk_in = freq;
return 0;
}
static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
{
/*
* pop-noise reduction sequence requires to shutdown
* analog side before CPU DAI
*/
if (mute)
snd_soc_dapm_codec_stream_event(dai->codec,
dai->driver->playback.stream_name,
SND_SOC_DAPM_STREAM_STOP);
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,
.digital_mute = twl6040_digital_mute,
};
static struct snd_soc_dai_driver twl6040_dai[] = {
{
.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 = 2,
.channels_max = 2,
.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)
{
if (codec->dapm.bias_level != codec->dapm.suspend_bias_level) {
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_audio_data *pdata = dev_get_platdata(codec->dev);
struct twl6040_jack_data *jack;
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->dapm.idle_bias_off = 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;
}
if (pdata && pdata->ep_step)
priv->ep_step = pdata->ep_step;
else
priv->ep_step = 1;
/* default is low-power mode */
priv->headset_mode = 1;
priv->sysclk_constraints = &lp_constraints;
priv->workqueue = create_singlethread_workqueue("twl6040-codec");
if (!priv->workqueue) {
ret = -ENOMEM;
goto work_err;
}
INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
mutex_init(&priv->mutex);
priv->vddhf_reg = regulator_get(codec->dev, "vddhf");
if (IS_ERR(priv->vddhf_reg)) {
ret = PTR_ERR(priv->vddhf_reg);
dev_warn(codec->dev, "couldn't get VDDHF regulator %d\n",
ret);
priv->vddhf_reg = NULL;
}
if (priv->vddhf_reg) {
ret = regulator_set_voltage(priv->vddhf_reg,
pdata->vddhf_uV, pdata->vddhf_uV);
if (ret) {
dev_warn(codec->dev, "failed to set VDDHF voltage %d\n",
ret);
goto reg_err;
}
}
init_completion(&priv->headset.ramp_done);
init_completion(&priv->handsfree.ramp_done);
init_completion(&priv->earphone.ramp_done);
priv->hf_workqueue = create_singlethread_workqueue("twl6040-hf");
if (priv->hf_workqueue == NULL) {
ret = -ENOMEM;
goto hfwork_err;
}
priv->hs_workqueue = create_singlethread_workqueue("twl6040-hs");
if (priv->hs_workqueue == NULL) {
ret = -ENOMEM;
goto hswork_err;
}
priv->ep_workqueue = create_singlethread_workqueue("twl6040-ep");
if (priv->ep_workqueue == NULL) {
ret = -ENOMEM;
goto epwork_err;
}
INIT_DELAYED_WORK(&priv->hs_delayed_work, twl6040_pga_hs_work);
INIT_DELAYED_WORK(&priv->hf_delayed_work, twl6040_pga_hf_work);
INIT_DELAYED_WORK(&priv->ep_delayed_work, twl6040_pga_ep_work);
/* use switch-class based headset reporting if platform requires it */
jack = &priv->hs_jack;
jack->sdev.name = "h2w";
ret = switch_dev_register(&jack->sdev);
if (ret) {
dev_err(codec->dev, "error registering switch device %d\n", ret);
goto reg_err;
}
wake_lock_init(&priv->wake_lock, WAKE_LOCK_SUSPEND, "twl6040");
ret = twl6040_request_irq(codec->control_data, TWL6040_IRQ_PLUG,
twl6040_audio_handler, IRQF_NO_SUSPEND,
"twl6040_irq_plug", codec);
if (ret) {
dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
goto irq_err;
}
ret = twl6040_request_irq(codec->control_data, TWL6040_IRQ_HF,
twl6040_audio_handler, 0,
"twl6040_irq_hf", codec);
if (ret) {
dev_err(codec->dev, "HF IRQ request failed: %d\n", ret);
goto hfirq_err;
}
/* init vio registers */
twl6040_init_vio_regs(codec);
/* power on device */
ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
if (ret)
goto bias_err;
snd_soc_add_controls(codec, twl6040_snd_controls,
ARRAY_SIZE(twl6040_snd_controls));
twl6040_add_widgets(codec);
return 0;
bias_err:
twl6040_free_irq(codec->control_data, TWL6040_IRQ_HF, codec);
hfirq_err:
twl6040_free_irq(codec->control_data, TWL6040_IRQ_PLUG, codec);
irq_err:
wake_lock_destroy(&priv->wake_lock);
switch_dev_unregister(&jack->sdev);
destroy_workqueue(priv->ep_workqueue);
epwork_err:
reg_err:
if (priv->vddhf_reg)
regulator_put(priv->vddhf_reg);
destroy_workqueue(priv->hs_workqueue);
hswork_err:
destroy_workqueue(priv->hf_workqueue);
hfwork_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);
struct twl6040_jack_data *jack = &priv->hs_jack;
twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
twl6040_free_irq(codec->control_data, TWL6040_IRQ_PLUG, codec);
twl6040_free_irq(codec->control_data, TWL6040_IRQ_HF, codec);
if (priv->vddhf_reg)
regulator_put(priv->vddhf_reg);
wake_lock_destroy(&priv->wake_lock);
switch_dev_unregister(&jack->sdev);
destroy_workqueue(priv->workqueue);
destroy_workqueue(priv->hf_workqueue);
destroy_workqueue(priv->hs_workqueue);
destroy_workqueue(priv->ep_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,
};
static int __devinit twl6040_codec_probe(struct platform_device *pdev)
{
struct twl4030_codec_audio_data *pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "platform_data is missing\n");
return -EINVAL;
}
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");