| /* |
| * 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 */ |
| }; |
| |
| 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 */ |