diff options
Diffstat (limited to 'sound/soc/codecs/cpcap.c')
| -rw-r--r-- | sound/soc/codecs/cpcap.c | 200 |
1 files changed, 199 insertions, 1 deletions
diff --git a/sound/soc/codecs/cpcap.c b/sound/soc/codecs/cpcap.c index 04304a7ad915..3eb862643b53 100644 --- a/sound/soc/codecs/cpcap.c +++ b/sound/soc/codecs/cpcap.c @@ -11,11 +11,21 @@ #include <linux/module.h> #include <linux/regmap.h> #include <linux/platform_device.h> +#include <linux/regulator/consumer.h> #include <linux/mfd/motorola-cpcap.h> #include <sound/core.h> +#include <linux/input.h> +#include <sound/jack.h> #include <sound/soc.h> #include <sound/tlv.h> +/* Register 8 - CPCAP_REG_INTS1 --- Interrupt Sense 1 */ +#define CPCAP_BIT_HS_S 9 /* Headset */ +#define CPCAP_BIT_MB2_S 10 /* Mic Bias2 */ + +/* Register 9 - CPCAP_REG_INTS2 --- Interrupt Sense 2 */ +#define CPCAP_BIT_PTT_S 11 /* Push To Talk */ + /* Register 512 CPCAP_REG_VAUDIOC --- Audio Regulator and Bias Voltage */ #define CPCAP_BIT_AUDIO_LOW_PWR 6 #define CPCAP_BIT_AUD_LOWPWR_SPEED 5 @@ -260,6 +270,10 @@ struct cpcap_audio { int codec_clk_id; int codec_freq; int codec_format; + struct regulator *vaudio; + int hsirq; + int mb2irq; + struct snd_soc_jack jack; }; static int cpcap_st_workaround(struct snd_soc_dapm_widget *w, @@ -1626,17 +1640,123 @@ static int cpcap_audio_reset(struct snd_soc_component *component, return 0; } +static irqreturn_t cpcap_hs_irq_thread(int irq, void *data) +{ + struct snd_soc_component *component = data; + struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cpcap->regmap; + int status = 0; + int mask = SND_JACK_HEADSET; + int val; + + if (!regmap_test_bits(regmap, CPCAP_REG_INTS1, BIT(CPCAP_BIT_HS_S))) { + val = BIT(CPCAP_BIT_MB_ON2) | BIT(CPCAP_BIT_PTT_CMP_EN); + regmap_update_bits(regmap, CPCAP_REG_TXI, val, val); + + val = BIT(CPCAP_BIT_ST_HS_CP_EN); + regmap_update_bits(regmap, CPCAP_REG_RXOA, val, val); + + regulator_set_mode(cpcap->vaudio, REGULATOR_MODE_NORMAL); + + /* Give PTTS time to settle */ + msleep(20); + + if (!regmap_test_bits(regmap, CPCAP_REG_INTS2, + BIT(CPCAP_BIT_PTT_S))) { + /* Headphones detected. (May also be a headset with the + * MFB pressed.) + */ + status = SND_JACK_HEADPHONE; + dev_info(component->dev, "HP plugged in\n"); + } else if (regmap_test_bits(regmap, CPCAP_REG_INTS1, + BIT(CPCAP_BIT_MB2_S)) == 1) { + status = SND_JACK_HEADSET; + dev_info(component->dev, "HS plugged in\n"); + } else + dev_info(component->dev, "Unsupported HS plugged in\n"); + } else { + bool mic = cpcap->jack.status & SND_JACK_MICROPHONE; + + dev_info(component->dev, "H%s disconnect\n", mic ? "S" : "P"); + val = BIT(CPCAP_BIT_MB_ON2) | BIT(CPCAP_BIT_PTT_CMP_EN); + regmap_update_bits(cpcap->regmap, CPCAP_REG_TXI, val, 0); + + val = BIT(CPCAP_BIT_ST_HS_CP_EN); + regmap_update_bits(cpcap->regmap, CPCAP_REG_RXOA, val, 0); + + regulator_set_mode(cpcap->vaudio, REGULATOR_MODE_STANDBY); + + mask |= SND_JACK_BTN_0; + } + + snd_soc_jack_report(&cpcap->jack, status, mask); + + return IRQ_HANDLED; +} + +static irqreturn_t cpcap_mb2_irq_thread(int irq, void *data) +{ + struct snd_soc_component *component = data; + struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component); + struct regmap *regmap = cpcap->regmap; + int status = 0; + int mb2; + int ptt; + + if (regmap_test_bits(regmap, CPCAP_REG_INTS1, BIT(CPCAP_BIT_HS_S)) == 1) + return IRQ_HANDLED; + + mb2 = regmap_test_bits(regmap, CPCAP_REG_INTS1, BIT(CPCAP_BIT_MB2_S)); + ptt = regmap_test_bits(regmap, CPCAP_REG_INTS2, BIT(CPCAP_BIT_PTT_S)); + + /* Initial detection might have been with MFB pressed */ + if (!(cpcap->jack.status & SND_JACK_MICROPHONE)) { + if (ptt == 1 && mb2 == 1) { + dev_info(component->dev, "MIC plugged in\n"); + snd_soc_jack_report(&cpcap->jack, SND_JACK_MICROPHONE, + SND_JACK_MICROPHONE); + } + + return IRQ_HANDLED; + } + + if (!mb2 || !ptt) + status = SND_JACK_BTN_0; + + snd_soc_jack_report(&cpcap->jack, status, SND_JACK_BTN_0); + + return IRQ_HANDLED; +} + static int cpcap_soc_probe(struct snd_soc_component *component) { + struct platform_device *pdev = to_platform_device(component->dev); + struct snd_soc_card *card = component->card; struct cpcap_audio *cpcap; int err; cpcap = devm_kzalloc(component->dev, sizeof(*cpcap), GFP_KERNEL); if (!cpcap) return -ENOMEM; + snd_soc_component_set_drvdata(component, cpcap); cpcap->component = component; + cpcap->vaudio = devm_regulator_get(component->dev, "VAUDIO"); + if (IS_ERR(cpcap->vaudio)) + return dev_err_probe(component->dev, PTR_ERR(cpcap->vaudio), + "Cannot get VAUDIO regulator\n"); + + err = snd_soc_card_jack_new(card, "Headphones", + SND_JACK_HEADSET | SND_JACK_BTN_0, + &cpcap->jack); + if (err < 0) { + dev_err(component->dev, "Cannot create HS jack: %i\n", err); + return err; + } + + snd_jack_set_key(cpcap->jack.jack, SND_JACK_BTN_0, KEY_MEDIA); + cpcap->regmap = dev_get_regmap(component->dev->parent, NULL); if (!cpcap->regmap) return -ENODEV; @@ -1646,17 +1766,95 @@ static int cpcap_soc_probe(struct snd_soc_component *component) if (err) return err; - return cpcap_audio_reset(component, false); + cpcap->hsirq = platform_get_irq_byname(pdev, "hs"); + if (cpcap->hsirq < 0) + return cpcap->hsirq; + + err = devm_request_threaded_irq(component->dev, cpcap->hsirq, NULL, + cpcap_hs_irq_thread, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + "cpcap-codec-hs", + component); + if (err) { + dev_warn(component->dev, "no HS irq%i: %i\n", + cpcap->hsirq, err); + return err; + } + + cpcap->mb2irq = platform_get_irq_byname(pdev, "mb2"); + if (cpcap->mb2irq < 0) + return cpcap->mb2irq; + + err = devm_request_threaded_irq(component->dev, cpcap->mb2irq, NULL, + cpcap_mb2_irq_thread, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, + "cpcap-codec-mb2", + component); + if (err) { + dev_warn(component->dev, "no MB2 irq%i: %i\n", + cpcap->mb2irq, err); + return err; + } + + err = cpcap_audio_reset(component, false); + if (err) + return err; + + cpcap_hs_irq_thread(cpcap->hsirq, component); + + enable_irq_wake(cpcap->hsirq); + enable_irq_wake(cpcap->mb2irq); + + return 0; +} + +static void cpcap_soc_remove(struct snd_soc_component *component) +{ + struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component); + + disable_irq_wake(cpcap->hsirq); + disable_irq_wake(cpcap->mb2irq); +} + +static int cpcap_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + struct cpcap_audio *cpcap = snd_soc_component_get_drvdata(component); + + /* VAIDIO should be kept in normal mode in order MIC/PTT to work */ + if (cpcap->jack.status & SND_JACK_MICROPHONE) + return 0; + + switch (level) { + case SND_SOC_BIAS_OFF: + break; + case SND_SOC_BIAS_PREPARE: + regulator_set_mode(cpcap->vaudio, REGULATOR_MODE_NORMAL); + break; + case SND_SOC_BIAS_STANDBY: + regulator_set_mode(cpcap->vaudio, REGULATOR_MODE_STANDBY); + break; + case SND_SOC_BIAS_ON: + break; + } + + return 0; } static const struct snd_soc_component_driver soc_codec_dev_cpcap = { .probe = cpcap_soc_probe, + .remove = cpcap_soc_remove, .controls = cpcap_snd_controls, .num_controls = ARRAY_SIZE(cpcap_snd_controls), .dapm_widgets = cpcap_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(cpcap_dapm_widgets), .dapm_routes = intercon, .num_dapm_routes = ARRAY_SIZE(intercon), + .set_bias_level = cpcap_set_bias_level, .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, |