diff options
Diffstat (limited to 'sound/soc/codecs/wm8350.c')
| -rw-r--r-- | sound/soc/codecs/wm8350.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c index df2c6d9617fb..ff6c10155ee6 100644 --- a/sound/soc/codecs/wm8350.c +++ b/sound/soc/codecs/wm8350.c @@ -54,6 +54,7 @@ struct wm8350_output { struct wm8350_jack_data { struct snd_soc_jack *jack; int report; + int short_report; }; struct wm8350_data { @@ -62,6 +63,7 @@ struct wm8350_data { struct wm8350_output out2; struct wm8350_jack_data hpl; struct wm8350_jack_data hpr; + struct wm8350_jack_data mic; struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)]; int fll_freq_out; int fll_freq_in; @@ -1430,6 +1432,55 @@ int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which, } EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect); +static irqreturn_t wm8350_mic_handler(int irq, void *data) +{ + struct wm8350_data *priv = data; + struct wm8350 *wm8350 = priv->codec.control_data; + u16 reg; + int report = 0; + + reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS); + if (reg & WM8350_JACK_MICSCD_LVL) + report |= priv->mic.short_report; + if (reg & WM8350_JACK_MICSD_LVL) + report |= priv->mic.report; + + snd_soc_jack_report(priv->mic.jack, report, + priv->mic.report | priv->mic.short_report); + + return IRQ_HANDLED; +} + +/** + * wm8350_mic_jack_detect - Enable microphone jack detection. + * + * @codec: WM8350 codec + * @jack: jack to report detection events on + * @detect_report: value to report when presence detected + * @short_report: value to report when microphone short detected + * + * Enables the microphone jack detection of the WM8350. + */ +int wm8350_mic_jack_detect(struct snd_soc_codec *codec, + struct snd_soc_jack *jack, + int detect_report, int short_report) +{ + struct wm8350_data *priv = codec->private_data; + struct wm8350 *wm8350 = codec->control_data; + + priv->mic.jack = jack; + priv->mic.report = detect_report; + priv->mic.short_report = short_report; + + wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); + wm8350_set_bits(wm8350, WM8350_POWER_MGMT_1, WM8350_MIC_DET_ENA); + + snd_soc_dapm_force_enable_pin(codec, "Mic Bias"); + + return 0; +} +EXPORT_SYMBOL_GPL(wm8350_mic_jack_detect); + static struct snd_soc_codec *wm8350_codec; static int wm8350_probe(struct platform_device *pdev) @@ -1493,6 +1544,10 @@ static int wm8350_probe(struct platform_device *pdev) wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R, wm8350_hp_jack_handler, 0, "Right jack detect", priv); + wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICSCD, + wm8350_mic_handler, 0, "Microphone short", priv); + wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_MICD, + wm8350_mic_handler, 0, "Microphone detect", priv); ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); if (ret < 0) { @@ -1521,11 +1576,14 @@ static int wm8350_remove(struct platform_device *pdev) WM8350_JDL_ENA | WM8350_JDR_ENA); wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA); + wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_MICD, priv); + wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_MICSCD, priv); wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L, priv); wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R, priv); priv->hpl.jack = NULL; priv->hpr.jack = NULL; + priv->mic.jack = NULL; /* cancel any work waiting to be queued. */ ret = cancel_delayed_work(&codec->delayed_work); |