diff options
Diffstat (limited to 'sound/pci/hda/hda_jack.h')
-rw-r--r-- | sound/pci/hda/hda_jack.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h new file mode 100644 index 00000000000..f8f97c71c9c --- /dev/null +++ b/sound/pci/hda/hda_jack.h @@ -0,0 +1,86 @@ +/* + * Jack-detection handling for HD-audio + * + * Copyright (c) 2011 Takashi Iwai <tiwai@suse.de> + * + * This driver is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __SOUND_HDA_JACK_H +#define __SOUND_HDA_JACK_H + +struct hda_jack_tbl { + hda_nid_t nid; + unsigned char action; /* event action (0 = none) */ + unsigned char tag; /* unsol event tag */ + unsigned int private_data; /* arbitrary data */ + /* jack-detection stuff */ + unsigned int pin_sense; /* cached pin-sense value */ + unsigned int jack_detect:1; /* capable of jack-detection? */ + unsigned int jack_dirty:1; /* needs to update? */ + struct snd_kcontrol *kctl; /* assigned kctl for jack-detection */ +#ifdef CONFIG_SND_HDA_INPUT_JACK + int type; + struct snd_jack *jack; +#endif +}; + +struct hda_jack_tbl * +snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid); +struct hda_jack_tbl * +snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag); + +struct hda_jack_tbl * +snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid); +void snd_hda_jack_tbl_clear(struct hda_codec *codec); + +/** + * snd_hda_jack_get_action - get jack-tbl entry for the tag + * + * Call this from the unsol event handler to get the assigned action for the + * event. This will mark the dirty flag for the later reporting, too. + */ +static inline unsigned char +snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag) +{ + struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag); + if (jack) { + jack->jack_dirty = 1; + return jack->action; + } + return 0; +} + +void snd_hda_jack_set_dirty_all(struct hda_codec *codec); + +int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid, + unsigned char action); + +u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid); +int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid); + +static inline bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid) +{ + if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT)) + return false; + if (!codec->ignore_misc_bit && + (get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) & + AC_DEFCFG_MISC_NO_PRESENCE)) + return false; + if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP)) + return false; + return true; +} + +int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid, + const char *name, int idx); +int snd_hda_jack_add_kctls(struct hda_codec *codec, + const struct auto_pin_cfg *cfg); + +void snd_hda_jack_report_sync(struct hda_codec *codec); + + +#endif /* __SOUND_HDA_JACK_H */ |