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ASoC: rk3399_gru_sound: Map BTN_0 to KEY_PLAYPAUSE

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The Android 3.5mm Headset jack specification mentions that BTN_0 should
be mapped to KEY_MEDIA, but this is less logical than KEY_PLAYPAUSE,
which has much broader userspace support.

For example, the Chrome OS userspace now supports KEY_PLAYPAUSE to toggle
play/pause of videos and audio, but does not handle KEY_MEDIA.

Furthermore, Android itself now supports KEY_PLAYPAUSE equivalently, as the
new USB headset spec requires KEY_PLAYPAUSE for BTN_0.
https://source.android.com/devices/accessories/headset/usb-headset-spec

Signed-off-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Benson Leung 2017-11-22 12:56:42 -08:00 committed by Mark Brown
parent c20c6704bf
commit af1b1cefd7
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1 changed files with 2 additions and 1 deletions
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3
sound/soc/rockchip/rk3399_gru_sound.c
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@ -206,7 +206,8 @@ static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd)
return ret;
}
snd_jack_set_key(rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_MEDIA);
snd_jack_set_key(
rockchip_sound_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(
rockchip_sound_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
snd_jack_set_key(