[linux-2.6-block.git] / sound / pci / hda / hda_jack.h

/*
 * 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 */
Commit	Line	Data
1835a0f9 TI	1	/*
	2	* Jack-detection handling for HD-audio
	3	*
	4	* Copyright (c) 2011 Takashi Iwai <tiwai@suse.de>
	5	*
	6	* This driver is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*/
	11
	12	#ifndef __SOUND_HDA_JACK_H
	13	#define __SOUND_HDA_JACK_H
	14
	15	struct hda_jack_tbl {
	16	hda_nid_t nid;
3a93897e TI	17	unsigned char action; /* event action (0 = none) */
	18	unsigned char tag; /* unsol event tag */
	19	unsigned int private_data; /* arbitrary data */
	20	/* jack-detection stuff */
1835a0f9	21	unsigned int pin_sense; /* cached pin-sense value */
3a93897e	22	unsigned int jack_detect:1; /* capable of jack-detection? */
1835a0f9	23	unsigned int jack_dirty:1; /* needs to update? */
01a61e12	24	struct snd_kcontrol kctl; / assigned kctl for jack-detection */
1835a0f9 TI	25	};
	26
	27	struct hda_jack_tbl *
	28	snd_hda_jack_tbl_get(struct hda_codec *codec, hda_nid_t nid);
3a93897e TI	29	struct hda_jack_tbl *
3a93897e TI	30	snd_hda_jack_tbl_get_from_tag(struct hda_codec *codec, unsigned char tag);
1835a0f9 TI	31
	32	struct hda_jack_tbl *
	33	snd_hda_jack_tbl_new(struct hda_codec *codec, hda_nid_t nid);
	34	void snd_hda_jack_tbl_clear(struct hda_codec *codec);
	35
	36	/**
3a93897e	37	* snd_hda_jack_get_action - get jack-tbl entry for the tag
1835a0f9	38	*
3a93897e TI	39	* Call this from the unsol event handler to get the assigned action for the
3a93897e TI	40	* event. This will mark the dirty flag for the later reporting, too.
1835a0f9	41	*/
3a93897e TI	42	static inline unsigned char
3a93897e TI	43	snd_hda_jack_get_action(struct hda_codec *codec, unsigned int tag)
1835a0f9	44	{
3a93897e TI	45	struct hda_jack_tbl *jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
3a93897e TI	46	if (jack) {
1835a0f9	47	jack->jack_dirty = 1;
3a93897e TI	48	return jack->action;
	49	}
	50	return 0;
1835a0f9 TI	51	}
	52
	53	void snd_hda_jack_set_dirty_all(struct hda_codec *codec);
	54
	55	int snd_hda_jack_detect_enable(struct hda_codec *codec, hda_nid_t nid,
3a93897e	56	unsigned char action);
1835a0f9 TI	57
	58	u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid);
	59	int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid);
	60
	61	static inline bool is_jack_detectable(struct hda_codec *codec, hda_nid_t nid)
	62	{
	63	if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_PRES_DETECT))
	64	return false;
	65	if (!codec->ignore_misc_bit &&
	66	(get_defcfg_misc(snd_hda_codec_get_pincfg(codec, nid)) &
	67	AC_DEFCFG_MISC_NO_PRESENCE))
	68	return false;
	69	if (!(get_wcaps(codec, nid) & AC_WCAP_UNSOL_CAP))
	70	return false;
	71	return true;
	72	}
	73
01a61e12 TI	74	int snd_hda_jack_add_kctl(struct hda_codec *codec, hda_nid_t nid,
	75	const char *name, int idx);
	76	int snd_hda_jack_add_kctls(struct hda_codec *codec,
	77	const struct auto_pin_cfg *cfg);
	78
01a61e12 TI	79	void snd_hda_jack_report_sync(struct hda_codec *codec);
	80
	81
1835a0f9	82	#endif /* __SOUND_HDA_JACK_H */