diff options
| -rw-r--r-- | include/sound/rt5645.h | 3 | ||||
| -rw-r--r-- | sound/soc/codecs/rt5645.c | 99 | ||||
| -rw-r--r-- | sound/soc/codecs/rt5645.h | 5 |
3 files changed, 107 insertions, 0 deletions
diff --git a/include/sound/rt5645.h b/include/sound/rt5645.h index 1de744c242f6..a5352712194b 100644 --- a/include/sound/rt5645.h +++ b/include/sound/rt5645.h @@ -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 diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index a7762d0a623e..3fb83bf09768 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -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; diff --git a/sound/soc/codecs/rt5645.h b/sound/soc/codecs/rt5645.h index 355b7e9eefab..50c62c5668ea 100644 --- a/sound/soc/codecs/rt5645.h +++ b/sound/soc/codecs/rt5645.h @@ -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__ */ |