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9058cbe1ee
Currently the ALSA jack core registers only input devices for each jack registered. These jack input devices are not readable by userspace devices that run as non root. This patch series will implement kctls inside the core jack part, including kctls creating, status changing report, for both HD-Audio and ASoC jack. This allows non root userspace to read jack status and act on it. This patch adds a new API called snd_jack_add_new_kctl(), which will create a kcontrol, add it to the card, and also attach it to the jack kctl list. This patch also initialises the jack kctl list after jack is newed, and reports kctl status when jack insertion/removal events occur. snd_jack_new() is updated in the following patches to also support creating phantom jacks and jack kcontrols. We then remove these duplicated features from HDA jack and have jack kctls handled by core throughout HDA and ASoC. Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com> Modified-by: Jie Yang <yang.jie@intel.com> Signed-off-by: Jie Yang <yang.jie@intel.com> Reveiwed-by: Mark Brown <broonie@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
#ifndef __SOUND_JACK_H
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#define __SOUND_JACK_H
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/*
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* Jack abstraction layer
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*
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* Copyright 2008 Wolfson Microelectronics plc
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <sound/core.h>
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struct input_dev;
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/**
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* enum snd_jack_types - Jack types which can be reported
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* @SND_JACK_HEADPHONE: Headphone
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* @SND_JACK_MICROPHONE: Microphone
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* @SND_JACK_HEADSET: Headset
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* @SND_JACK_LINEOUT: Line out
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* @SND_JACK_MECHANICAL: Mechanical switch
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* @SND_JACK_VIDEOOUT: Video out
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* @SND_JACK_AVOUT: AV (Audio Video) out
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* @SND_JACK_LINEIN: Line in
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* @SND_JACK_BTN_0: Button 0
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* @SND_JACK_BTN_1: Button 1
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* @SND_JACK_BTN_2: Button 2
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* @SND_JACK_BTN_3: Button 3
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* @SND_JACK_BTN_4: Button 4
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* @SND_JACK_BTN_5: Button 5
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*
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* These values are used as a bitmask.
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*
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* Note that this must be kept in sync with the lookup table in
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* sound/core/jack.c.
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*/
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enum snd_jack_types {
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SND_JACK_HEADPHONE = 0x0001,
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SND_JACK_MICROPHONE = 0x0002,
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SND_JACK_HEADSET = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE,
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SND_JACK_LINEOUT = 0x0004,
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SND_JACK_MECHANICAL = 0x0008, /* If detected separately */
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SND_JACK_VIDEOOUT = 0x0010,
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SND_JACK_AVOUT = SND_JACK_LINEOUT | SND_JACK_VIDEOOUT,
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SND_JACK_LINEIN = 0x0020,
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/* Kept separate from switches to facilitate implementation */
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SND_JACK_BTN_0 = 0x4000,
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SND_JACK_BTN_1 = 0x2000,
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SND_JACK_BTN_2 = 0x1000,
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SND_JACK_BTN_3 = 0x0800,
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SND_JACK_BTN_4 = 0x0400,
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SND_JACK_BTN_5 = 0x0200,
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};
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/* Keep in sync with definitions above */
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#define SND_JACK_SWITCH_TYPES 6
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struct snd_jack {
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struct input_dev *input_dev;
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struct list_head kctl_list;
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struct snd_card *card;
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int registered;
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int type;
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const char *id;
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char name[100];
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unsigned int key[6]; /* Keep in sync with definitions above */
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void *private_data;
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void (*private_free)(struct snd_jack *);
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};
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#ifdef CONFIG_SND_JACK
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int snd_jack_new(struct snd_card *card, const char *id, int type,
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struct snd_jack **jack);
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int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
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void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
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int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
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int keytype);
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void snd_jack_report(struct snd_jack *jack, int status);
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#else
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static inline int snd_jack_new(struct snd_card *card, const char *id, int type,
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struct snd_jack **jack)
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{
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return 0;
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}
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static inline int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask)
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{
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return 0;
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}
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static inline void snd_jack_set_parent(struct snd_jack *jack,
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struct device *parent)
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{
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}
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static inline int snd_jack_set_key(struct snd_jack *jack,
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enum snd_jack_types type,
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int keytype)
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{
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return 0;
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}
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static inline void snd_jack_report(struct snd_jack *jack, int status)
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{
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}
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#endif
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#endif
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