From: Bard Liao bardliao@realtek.com

This patch provide the jack function of rt5670. We use a irq pin to notice the jack event. rt5670_irq_detection will determine which status should be reported. We can get gpio information from gpio number or gpiod_dev. That's why we define both on platform data.

Signed-off-by: Bard Liao bardliao@realtek.com --- include/sound/rt5670.h | 2 + sound/soc/codecs/rt5670.c | 176 +++++++++++++++++++++++++++++++++++++++++++++- sound/soc/codecs/rt5670.h | 2 + 3 files changed, 178 insertions(+), 2 deletions(-)

diff --git a/include/sound/rt5670.h b/include/sound/rt5670.h index bd31119..bb5cf6d 100644 --- a/include/sound/rt5670.h +++ b/include/sound/rt5670.h @@ -14,6 +14,8 @@ struct rt5670_platform_data { int jd_mode; bool in2_diff; + int codec_gpio; + bool dev_gpio;

bool dmic_en; unsigned int dmic1_data_pin; diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 89fa507..cb5a91c 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -401,6 +401,144 @@ 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; +} + 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); @@ -2413,6 +2551,34 @@ static int rt5670_probe(struct snd_soc_codec *codec) return -ENODEV; } rt5670->codec = codec; + if ((rt5670->pdata.codec_gpio != -1) || (rt5670->pdata.dev_gpio)) { + if (rt5670->pdata.dev_gpio) + rt5670->hp_gpio.gpiod_dev = codec->dev; + else + rt5670->hp_gpio.gpio = rt5670->pdata.codec_gpio; + + 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_new(codec, rt5670->hp_gpio.name, + rt5670->hp_gpio.report, + &rt5670->jack); + if (ret) { + dev_err(codec->dev, "Jack creation failed\n"); + return ret; + } + + 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; } @@ -2422,6 +2588,7 @@ 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; }

@@ -2590,12 +2757,17 @@ 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.codec_gpio != -1) || (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) { diff --git a/sound/soc/codecs/rt5670.h b/sound/soc/codecs/rt5670.h index d11b9c2..54933f3 100644 --- a/sound/soc/codecs/rt5670.h +++ b/sound/soc/codecs/rt5670.h @@ -1987,6 +1987,8 @@ 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;