/* SPDX-License-Identifier: GPL-2.0 */ /* * 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; } static inline unsigned int get_wcaps_channels(u32 wcaps) { unsigned int chans; chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13; chans = (chans + 1) * 2; return chans; } extern const struct attribute_group *hdac_dev_attr_groups[]; int hda_widget_sysfs_init(struct hdac_device *codec); int hda_widget_sysfs_reinit(struct hdac_device *codec, hda_nid_t start_nid, int num_nodes); void hda_widget_sysfs_exit(struct hdac_device *codec); int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec); void snd_hdac_bus_remove_device(struct hdac_bus *bus, struct hdac_device *codec); int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd, unsigned int flags, unsigned int *res); #endif /* __HDAC_LOCAL_H */