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Commit d3ef7054 authored by Bard Liao's avatar Bard Liao Committed by Mark Brown
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ASoC: rt5670: Add IRQ function 

This patch adds the IRQ function support of rt5670. We use a flag
named dev_gpio in platform data to inform codec driver if the IRQ
function is used or not. Also, we export rt5670_set_jack_detect
for machine driver to pass the jack point.
Signed-off-by: default avatarBard Liao <bardliao@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent eb5bc2a2
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Showing with 179 additions and 2 deletions
include/sound/rt5670.h
View file @ d3ef7054
......@@ -14,6 +14,7 @@
struct rt5670_platform_data {
int jd_mode;
bool in2_diff;
bool dev_gpio;
bool dmic_en;
unsigned int dmic1_data_pin;
......
sound/soc/codecs/rt5670.c
View file @ d3ef7054
......@@ -403,6 +403,171 @@ static bool rt5670_readable_register(struct device *dev, unsigned int reg)
}
}
/**
* rt5670_headset_detect - Detect headset.
* @codec: SoC audio codec device.
* @jack_insert: Jack insert or not.
*
* Detect whether is headset or not when jack inserted.
*
* Returns detect status.
*/
static int rt5670_headset_detect(struct snd_soc_codec *codec, int jack_insert)
{
int val;
struct rt5670_priv *rt5670 = snd_soc_codec_get_drvdata(codec);
if (jack_insert) {
snd_soc_dapm_force_enable_pin(&codec->dapm,
"Mic Det Power");
snd_soc_dapm_sync(&codec->dapm);
snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x4, 0x0);
snd_soc_update_bits(codec, RT5670_CJ_CTRL2,
RT5670_CBJ_DET_MODE | RT5670_CBJ_MN_JD,
RT5670_CBJ_MN_JD);
snd_soc_write(codec, RT5670_GPIO_CTRL2, 0x0004);
snd_soc_update_bits(codec, RT5670_GPIO_CTRL1,
RT5670_GP1_PIN_MASK, RT5670_GP1_PIN_IRQ);
snd_soc_update_bits(codec, RT5670_CJ_CTRL1,
RT5670_CBJ_BST1_EN, RT5670_CBJ_BST1_EN);
snd_soc_write(codec, RT5670_JD_CTRL3, 0x00f0);
snd_soc_update_bits(codec, RT5670_CJ_CTRL2,
RT5670_CBJ_MN_JD, RT5670_CBJ_MN_JD);
snd_soc_update_bits(codec, RT5670_CJ_CTRL2,
RT5670_CBJ_MN_JD, 0);
msleep(300);
val = snd_soc_read(codec, RT5670_CJ_CTRL3) & 0x7;
if (val == 0x1 || val == 0x2) {
rt5670->jack_type = SND_JACK_HEADSET;
/* for push button */
snd_soc_update_bits(codec, RT5670_INT_IRQ_ST, 0x8, 0x8);
snd_soc_update_bits(codec, RT5670_IL_CMD, 0x40, 0x40);
snd_soc_read(codec, RT5670_IL_CMD);
} else {
snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x4, 0x4);
rt5670->jack_type = SND_JACK_HEADPHONE;
snd_soc_dapm_disable_pin(&codec->dapm, "Mic Det Power");
snd_soc_dapm_sync(&codec->dapm);
}
} else {
snd_soc_update_bits(codec, RT5670_INT_IRQ_ST, 0x8, 0x0);
snd_soc_update_bits(codec, RT5670_GEN_CTRL3, 0x4, 0x4);
rt5670->jack_type = 0;
snd_soc_dapm_disable_pin(&codec->dapm, "Mic Det Power");
snd_soc_dapm_sync(&codec->dapm);
}
return rt5670->jack_type;
}
static int rt5670_button_detect(struct snd_soc_codec *codec)
{
int btn_type, val;
val = snd_soc_read(codec, RT5670_IL_CMD);
btn_type = val & 0xff80;
snd_soc_write(codec, RT5670_IL_CMD, val);
if (btn_type != 0) {
msleep(20);
val = snd_soc_read(codec, RT5670_IL_CMD);
snd_soc_write(codec, RT5670_IL_CMD, val);
}
return btn_type;
}
static int rt5670_irq_detection(void *data)
{
struct rt5670_priv *rt5670 = (struct rt5670_priv *)data;
struct snd_soc_jack_gpio *gpio = &rt5670->hp_gpio;
struct snd_soc_jack *jack = rt5670->jack;
int val, btn_type, report = jack->status;
if (rt5670->pdata.jd_mode == 1) /* 2 port */
val = snd_soc_read(rt5670->codec, RT5670_A_JD_CTRL1) & 0x0070;
else
val = snd_soc_read(rt5670->codec, RT5670_A_JD_CTRL1) & 0x0020;
switch (val) {
/* jack in */
case 0x30: /* 2 port */
case 0x0: /* 1 port or 2 port */
if (rt5670->jack_type == 0) {
report = rt5670_headset_detect(rt5670->codec, 1);
/* for push button and jack out */
gpio->debounce_time = 25;
break;
}
btn_type = 0;
if (snd_soc_read(rt5670->codec, RT5670_INT_IRQ_ST) & 0x4) {
/* button pressed */
report = SND_JACK_HEADSET;
btn_type = rt5670_button_detect(rt5670->codec);
switch (btn_type) {
case 0x2000: /* up */
report |= SND_JACK_BTN_1;
break;
case 0x0400: /* center */
report |= SND_JACK_BTN_0;
break;
case 0x0080: /* down */
report |= SND_JACK_BTN_2;
break;
default:
dev_err(rt5670->codec->dev,
"Unexpected button code 0x%04x\n",
btn_type);
break;
}
}
if (btn_type == 0)/* button release */
report = rt5670->jack_type;
break;
/* jack out */
case 0x70: /* 2 port */
case 0x10: /* 2 port */
case 0x20: /* 1 port */
report = 0;
snd_soc_update_bits(rt5670->codec, RT5670_INT_IRQ_ST, 0x1, 0x0);
rt5670_headset_detect(rt5670->codec, 0);
gpio->debounce_time = 150; /* for jack in */
break;
default:
break;
}
return report;
}
int rt5670_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack)
{
struct rt5670_priv *rt5670 = snd_soc_codec_get_drvdata(codec);
int ret;
rt5670->jack = jack;
rt5670->hp_gpio.gpiod_dev = codec->dev;
rt5670->hp_gpio.name = "headphone detect";
rt5670->hp_gpio.report = SND_JACK_HEADSET |
SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2;
rt5670->hp_gpio.debounce_time = 150;
rt5670->hp_gpio.wake = true;
rt5670->hp_gpio.data = (struct rt5670_priv *)rt5670;
rt5670->hp_gpio.jack_status_check = rt5670_irq_detection;
ret = snd_soc_jack_add_gpios(rt5670->jack, 1,
&rt5670->hp_gpio);
if (ret) {
dev_err(codec->dev, "Adding jack GPIO failed\n");
return ret;
}
return 0;
}
EXPORT_SYMBOL_GPL(rt5670_set_jack_detect);
static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -4650, 150, 0);
static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -65625, 375, 0);
static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -3450, 150, 0);
......@@ -2506,6 +2671,7 @@ static int rt5670_remove(struct snd_soc_codec *codec)
struct rt5670_priv *rt5670 = snd_soc_codec_get_drvdata(codec);
regmap_write(rt5670->regmap, RT5670_RESET, 0);
snd_soc_jack_free_gpios(rt5670->jack, 1, &rt5670->hp_gpio);
return 0;
}
......@@ -2665,6 +2831,7 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
if (dmi_check_system(dmi_platform_intel_braswell)) {
rt5670->pdata.dmic_en = true;
rt5670->pdata.dmic1_data_pin = RT5670_DMIC_DATA_IN2P;
rt5670->pdata.dev_gpio = true;
rt5670->pdata.jd_mode = 1;
}
......@@ -2706,12 +2873,17 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
regmap_update_bits(rt5670->regmap, RT5670_IN2,
RT5670_IN_DF2, RT5670_IN_DF2);
if (i2c->irq) {
if (rt5670->pdata.dev_gpio) {
/* for push button */
regmap_write(rt5670->regmap, RT5670_IL_CMD, 0x0000);
regmap_write(rt5670->regmap, RT5670_IL_CMD2, 0x0010);
regmap_write(rt5670->regmap, RT5670_IL_CMD3, 0x0014);
/* for irq */
regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL1,
RT5670_GP1_PIN_MASK, RT5670_GP1_PIN_IRQ);
regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2,
RT5670_GP1_PF_MASK, RT5670_GP1_PF_OUT);
regmap_update_bits(rt5670->regmap, RT5670_DIG_MISC, 0x8, 0x8);
}
if (rt5670->pdata.jd_mode) {
......
sound/soc/codecs/rt5670.h
View file @ d3ef7054
......@@ -1988,6 +1988,8 @@ struct rt5670_priv {
struct snd_soc_codec *codec;
struct rt5670_platform_data pdata;
struct regmap *regmap;
struct snd_soc_jack *jack;
struct snd_soc_jack_gpio hp_gpio;
int sysclk;
int sysclk_src;
......@@ -2004,4 +2006,6 @@ struct rt5670_priv {
int jack_type;
};
int rt5670_set_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack);
#endif /* __RT5670_H__ */
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