From: Srinivas Kandagatla srinivas.kandagatla@linaro.org
This patch adds support to Headset JACK, also provides board specific vref ranges for mbhc buttons to be detected.
This headset supports both 3 pole and 4 pole headset type and 5 buttons.
Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/apq8016_sbc.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)
diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c index f07aa1e..e6e632a 100644 --- a/sound/soc/qcom/apq8016_sbc.c +++ b/sound/soc/qcom/apq8016_sbc.c @@ -21,12 +21,16 @@ #include <linux/platform_device.h> #include <sound/pcm.h> #include <sound/pcm_params.h> +#include <sound/jack.h> #include <sound/soc.h> +#include <uapi/linux/input-event-codes.h> #include <dt-bindings/sound/apq8016-lpass.h>
struct apq8016_sbc_data { void __iomem *mic_iomux; void __iomem *spkr_iomux; + struct snd_soc_jack jack; + bool jack_setup; struct snd_soc_dai_link dai_link[]; /* dynamically allocated */ };
@@ -70,6 +74,31 @@ static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
}
+ if (!pdata->jack_setup) { + struct snd_jack *jack; + + rval = snd_soc_card_jack_new(card, "Headset Jack", + SND_JACK_HEADSET | + SND_JACK_HEADPHONE | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3 | + SND_JACK_BTN_4, + &pdata->jack, NULL, 0); + + if (rval < 0) { + dev_err(card->dev, "Unable to add Headphone Jack\n"); + return rval; + } + + jack = pdata->jack.jack; + + snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_MEDIA); + snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); + snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); + snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); + pdata->jack_setup = true; + } + for (i = 0 ; i < dai_link->num_codecs; i++) { struct snd_soc_dai *dai = rtd->codec_dais[i];
@@ -81,6 +110,11 @@ static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd) dev_warn(card->dev, "Failed to set mclk: %d\n", rval); return rval; } + rval = snd_soc_codec_set_jack(codec, &pdata->jack, NULL); + if (rval != 0 && rval != -ENOTSUPP) { + dev_warn(card->dev, "Failed to set jack: %d\n", rval); + return rval; + } }
return 0;