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| author |   Hui Wang <hui.wang@canonical.com> | 2021-03-05 17:26:08 +0800 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2021-03-05 15:18:24 +0100 |
| commit | 04f7791b7a4ba6ff3f53b3f3978b353924d10e78 (patch) | |
| tree | 3a1b9a0ae159fcf26502fdc65c49461cc8666027 /sound/pci/hda/hda_jack.h | |
| parent | ALSA: pci: vx222: fix kernel-doc warning (diff) | |
| download | linux-dev-04f7791b7a4ba6ff3f53b3f3978b353924d10e78.tar.xz linux-dev-04f7791b7a4ba6ff3f53b3f3978b353924d10e78.zip | |
ALSA: hda - bind headset buttons to the headphone jack
With the HDA driver, if the headset buttons are supported, an audio
Jack will be created for them. This audio Jack is a bit confusing to
users since it can't report headphone/mic insertion events but it
claims to support these events.
And in addition, the driver already builds a headphone Jack and a mic
Jack, and most of those buttons are used for headphone playback, so
do some change to bind those buttons to the headphone Jack. After this
change, the key events are generated from NID 0x55, and are reported
to the input layer via headphone jack (NID 0x21).
If there is no headphone Jack, then build an audio jack to support
those buttons same as previously.
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20210305092608.109599-1-hui.wang@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_jack.h')
| -rw-r--r-- | sound/pci/hda/hda_jack.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h index 8ceaf0ef5df1..2abf7aac243a 100644 --- a/sound/pci/hda/hda_jack.h +++ b/sound/pci/hda/hda_jack.h @@ -40,6 +40,7 @@ struct hda_jack_tbl { unsigned int block_report:1; /* in a transitional state - do not report to userspace */ hda_nid_t gating_jack; /* valid when gating jack plugged */ hda_nid_t gated_jack; /* gated is dependent on this jack */ + hda_nid_t key_report_jack; /* key reports to this jack */ int type; int button_state; struct snd_jack *jack; @@ -99,6 +100,13 @@ snd_hda_jack_detect_enable_callback(struct hda_codec *codec, hda_nid_t nid, int snd_hda_jack_set_gating_jack(struct hda_codec *codec, hda_nid_t gated_nid, hda_nid_t gating_nid); +int snd_hda_jack_bind_keymap(struct hda_codec *codec, hda_nid_t key_nid, + const struct hda_jack_keymap *keymap, + hda_nid_t jack_nid); + +void snd_hda_jack_set_button_state(struct hda_codec *codec, hda_nid_t jack_nid, + int button_state); + u32 snd_hda_jack_pin_sense(struct hda_codec *codec, hda_nid_t nid, int dev_id); /* the jack state returned from snd_hda_jack_detect_state() */ |