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ASoC: rt5645: Add headset detect function

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Add headset detect function

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Oder Chiou 2014-09-19 19:15:45 +08:00 committed by Mark Brown
parent 7d1311b93e
commit f3fa1bbd83
3 changed files with 107 additions and 0 deletions
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3
include/sound/rt5645.h
View File

@ -20,6 +20,9 @@ struct rt5645_platform_data {
/* 0 = IN2N; 1 = GPIO5; 2 = GPIO11 */
unsigned int dmic2_data_pin;
/* 0 = IN2P; 1 = GPIO6; 2 = GPIO10; 3 = GPIO12 */
unsigned int hp_det_gpio;
bool gpio_hp_det_active_high;
};
#endif

99
sound/soc/codecs/rt5645.c
View File

@ -17,6 +17,7 @@
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@ -2103,6 +2104,77 @@ static int rt5645_set_bias_level(struct snd_soc_codec *codec,
return 0;
}
static int rt5645_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack)
{
struct rt5645_priv *rt5645 = snd_soc_codec_get_drvdata(codec);
int gpio_state, jack_type = 0;
unsigned int val;
gpio_state = gpio_get_value(rt5645->pdata.hp_det_gpio);
dev_dbg(codec->dev, "gpio = %d(%d)\n", rt5645->pdata.hp_det_gpio,
gpio_state);
if ((rt5645->pdata.gpio_hp_det_active_high && gpio_state) ||
(!rt5645->pdata.gpio_hp_det_active_high && !gpio_state)) {
snd_soc_dapm_force_enable_pin(&codec->dapm, "micbias1");
snd_soc_dapm_force_enable_pin(&codec->dapm, "micbias2");
snd_soc_dapm_force_enable_pin(&codec->dapm, "LDO2");
snd_soc_dapm_force_enable_pin(&codec->dapm, "Mic Det Power");
snd_soc_dapm_sync(&codec->dapm);
snd_soc_write(codec, RT5645_IN1_CTRL1, 0x0006);
snd_soc_write(codec, RT5645_JD_CTRL3, 0x00b0);
snd_soc_update_bits(codec, RT5645_IN1_CTRL2,
RT5645_CBJ_MN_JD, 0);
snd_soc_update_bits(codec, RT5645_IN1_CTRL2,
RT5645_CBJ_MN_JD, RT5645_CBJ_MN_JD);
msleep(400);
val = snd_soc_read(codec, RT5645_IN1_CTRL3) & 0x7;
dev_dbg(codec->dev, "val = %d\n", val);
if (val == 1 || val == 2)
jack_type = SND_JACK_HEADSET;
else
jack_type = SND_JACK_HEADPHONE;
snd_soc_dapm_disable_pin(&codec->dapm, "micbias1");
snd_soc_dapm_disable_pin(&codec->dapm, "micbias2");
snd_soc_dapm_disable_pin(&codec->dapm, "LDO2");
snd_soc_dapm_disable_pin(&codec->dapm, "Mic Det Power");
snd_soc_dapm_sync(&codec->dapm);
}
snd_soc_jack_report(rt5645->jack, jack_type, SND_JACK_HEADSET);
return 0;
}
int rt5645_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack)
{
struct rt5645_priv *rt5645 = snd_soc_codec_get_drvdata(codec);
rt5645->jack = jack;
rt5645_jack_detect(codec, rt5645->jack);
return 0;
}
EXPORT_SYMBOL_GPL(rt5645_set_jack_detect);
static irqreturn_t rt5645_irq(int irq, void *data)
{
struct rt5645_priv *rt5645 = data;
rt5645_jack_detect(rt5645->codec, rt5645->jack);
return IRQ_HANDLED;
}
static int rt5645_probe(struct snd_soc_codec *codec)
{
struct rt5645_priv *rt5645 = snd_soc_codec_get_drvdata(codec);
@ -2250,6 +2322,7 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
if (rt5645 == NULL)
return -ENOMEM;
rt5645->i2c = i2c;
i2c_set_clientdata(i2c, rt5645);
if (pdata)
@ -2345,12 +2418,38 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
}
if (rt5645->i2c->irq) {
ret = request_threaded_irq(rt5645->i2c->irq, NULL, rt5645_irq,
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
| IRQF_ONESHOT, "rt5645", rt5645);
if (ret)
dev_err(&i2c->dev, "Failed to reguest IRQ: %d\n", ret);
}
if (gpio_is_valid(rt5645->pdata.hp_det_gpio)) {
ret = gpio_request(rt5645->pdata.hp_det_gpio, "rt5645");
if (ret)
dev_err(&i2c->dev, "Fail gpio_request hp_det_gpio\n");
ret = gpio_direction_input(rt5645->pdata.hp_det_gpio);
if (ret)
dev_err(&i2c->dev, "Fail gpio_direction hp_det_gpio\n");
}
return snd_soc_register_codec(&i2c->dev, &soc_codec_dev_rt5645,
rt5645_dai, ARRAY_SIZE(rt5645_dai));
}
static int rt5645_i2c_remove(struct i2c_client *i2c)
{
struct rt5645_priv *rt5645 = i2c_get_clientdata(i2c);
if (i2c->irq)
free_irq(i2c->irq, rt5645);
if (gpio_is_valid(rt5645->pdata.hp_det_gpio))
gpio_free(rt5645->pdata.hp_det_gpio);
snd_soc_unregister_codec(&i2c->dev);
return 0;

5
sound/soc/codecs/rt5645.h
View File

@ -2166,6 +2166,8 @@ struct rt5645_priv {
struct snd_soc_codec *codec;
struct rt5645_platform_data pdata;
struct regmap *regmap;
struct i2c_client *i2c;
struct snd_soc_jack *jack;
int sysclk;
int sysclk_src;
@ -2178,4 +2180,7 @@ struct rt5645_priv {
int pll_out;
};
int rt5645_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack);
#endif /* __RT5645_H__ */