diff options
Diffstat (limited to 'sound/hda/local.h')
| -rw-r--r-- | sound/hda/local.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sound/hda/local.h b/sound/hda/local.h new file mode 100644 index 000000000..d692f417d --- /dev/null +++ b/sound/hda/local.h @@ -0,0 +1,23 @@ +/* + * Local helper macros and functions for HD-audio core drivers + */ + +#ifndef __HDAC_LOCAL_H +#define __HDAC_LOCAL_H + +#define get_wcaps(codec, nid) \ + snd_hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP) + +/* get the widget type from widget capability bits */ +static inline int get_wcaps_type(unsigned int wcaps) +{ + if (!wcaps) + return -1; /* invalid type */ + return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT; +} + +extern const struct attribute_group *hdac_dev_attr_groups[]; +int hda_widget_sysfs_init(struct hdac_device *codec); +void hda_widget_sysfs_exit(struct hdac_device *codec); + +#endif /* __HDAC_LOCAL_H */ |