diff options
Diffstat (limited to 'include/sound/control.h')
| -rw-r--r-- | include/sound/control.h | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/include/sound/control.h b/include/sound/control.h index 112374dc0c5..5358892b1b3 100644 --- a/include/sound/control.h +++ b/include/sound/control.h @@ -40,7 +40,7 @@ struct snd_kcontrol_new { snd_ctl_elem_iface_t iface; /* interface identifier */ unsigned int device; /* device/client number */ unsigned int subdevice; /* subdevice (substream) number */ - unsigned char *name; /* ASCII name of item */ + const unsigned char *name; /* ASCII name of item */ unsigned int index; /* index of item */ unsigned int access; /* access rights */ unsigned int count; /* count of same elements */ @@ -113,8 +113,11 @@ struct snd_kcontrol *snd_ctl_new1(const struct snd_kcontrol_new * kcontrolnew, v void snd_ctl_free_one(struct snd_kcontrol * kcontrol); int snd_ctl_add(struct snd_card * card, struct snd_kcontrol * kcontrol); int snd_ctl_remove(struct snd_card * card, struct snd_kcontrol * kcontrol); +int snd_ctl_replace(struct snd_card *card, struct snd_kcontrol *kcontrol, bool add_on_replace); int snd_ctl_remove_id(struct snd_card * card, struct snd_ctl_elem_id *id); int snd_ctl_rename_id(struct snd_card * card, struct snd_ctl_elem_id *src_id, struct snd_ctl_elem_id *dst_id); +int snd_ctl_activate_id(struct snd_card *card, struct snd_ctl_elem_id *id, + int active); struct snd_kcontrol *snd_ctl_find_numid(struct snd_card * card, unsigned int numid); struct snd_kcontrol *snd_ctl_find_id(struct snd_card * card, struct snd_ctl_elem_id *id); @@ -160,12 +163,14 @@ static inline struct snd_ctl_elem_id *snd_ctl_build_ioff(struct snd_ctl_elem_id } /* - * Frequently used control callbacks + * Frequently used control callbacks/helpers */ int snd_ctl_boolean_mono_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_ctl_boolean_stereo_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); +int snd_ctl_enum_info(struct snd_ctl_elem_info *info, unsigned int channels, + unsigned int items, const char *const names[]); /* * virtual master control @@ -184,16 +189,17 @@ int _snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave, * * Add a virtual slave control to the given master element created via * snd_ctl_create_virtual_master() beforehand. - * Returns zero if successful or a negative error code. * * All slaves must be the same type (returning the same information - * via info callback). The fucntion doesn't check it, so it's your + * via info callback). The function doesn't check it, so it's your * responsibility. * * Also, some additional limitations: * at most two channels, * logarithmic volume control (dB level) thus no linear volume, * master can only attenuate the volume without gain + * + * Return: Zero if successful or a negative error code. */ static inline int snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave) @@ -214,6 +220,8 @@ snd_ctl_add_slave(struct snd_kcontrol *master, struct snd_kcontrol *slave) * When the control peeks the hardware values directly and the value * can be changed by other means than the put callback of the element, * this function should be used to keep the value always up-to-date. + * + * Return: Zero if successful or a negative error code. */ static inline int snd_ctl_add_slave_uncached(struct snd_kcontrol *master, @@ -222,4 +230,18 @@ snd_ctl_add_slave_uncached(struct snd_kcontrol *master, return _snd_ctl_add_slave(master, slave, SND_CTL_SLAVE_NEED_UPDATE); } +int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl, + void (*hook)(void *private_data, int), + void *private_data); +void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only); +#define snd_ctl_sync_vmaster_hook(kctl) snd_ctl_sync_vmaster(kctl, true) + +/* + * Helper functions for jack-detection controls + */ +struct snd_kcontrol * +snd_kctl_jack_new(const char *name, int idx, void *private_data); +void snd_kctl_jack_report(struct snd_card *card, + struct snd_kcontrol *kctl, bool status); + #endif /* __SOUND_CONTROL_H */ |