1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Local helper macros and functions for HD-audio core drivers
9 #define get_wcaps(codec, nid) \
10 snd_hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
12 /* get the widget type from widget capability bits */
13 static inline int get_wcaps_type(unsigned int wcaps)
16 return -1; /* invalid type */
17 return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
20 static inline unsigned int get_wcaps_channels(u32 wcaps)
24 chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
25 chans = (chans + 1) * 2;
30 extern const struct attribute_group *hdac_dev_attr_groups[];
31 int hda_widget_sysfs_init(struct hdac_device *codec);
32 int hda_widget_sysfs_reinit(struct hdac_device *codec, hda_nid_t start_nid,
34 void hda_widget_sysfs_exit(struct hdac_device *codec);
36 int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec);
37 void snd_hdac_bus_remove_device(struct hdac_bus *bus,
38 struct hdac_device *codec);
39 void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex);
40 int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,
41 unsigned int cmd, unsigned int *res);
43 int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,
44 unsigned int flags, unsigned int *res);
46 #endif /* __HDAC_LOCAL_H */