| 1 | /* SPDX-License-Identifier: GPL-2.0 */
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| 2 | /*
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| 3 | * Local helper macros and functions for HD-audio core drivers
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| 4 | */
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| 5 |
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| 6 | #ifndef __HDAC_LOCAL_H
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| 7 | #define __HDAC_LOCAL_H
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| 8 |
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| 9 | #define get_wcaps(codec, nid) \
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| 10 | snd_hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
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| 11 |
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| 12 | /* get the widget type from widget capability bits */
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| 13 | static inline int get_wcaps_type(unsigned int wcaps)
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| 14 | {
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| 15 | if (!wcaps)
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| 16 | return -1; /* invalid type */
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| 17 | return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
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| 18 | }
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| 19 |
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| 20 | static inline unsigned int get_wcaps_channels(u32 wcaps)
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| 21 | {
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| 22 | unsigned int chans;
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| 23 |
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| 24 | chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
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| 25 | chans = (chans + 1) * 2;
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| 26 |
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| 27 | return chans;
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| 28 | }
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| 29 |
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| 30 | extern const struct attribute_group *hdac_dev_attr_groups[];
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| 31 | int hda_widget_sysfs_init(struct hdac_device *codec);
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| 32 | int hda_widget_sysfs_reinit(struct hdac_device *codec, hda_nid_t start_nid,
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| 33 | int num_nodes);
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| 34 | void hda_widget_sysfs_exit(struct hdac_device *codec);
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| 35 |
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| 36 | int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec);
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| 37 | void snd_hdac_bus_remove_device(struct hdac_bus *bus,
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| 38 | struct hdac_device *codec);
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| 39 | void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex);
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| 40 | int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,
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| 41 | unsigned int cmd, unsigned int *res);
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| 42 |
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| 43 | int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,
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| 44 | unsigned int flags, unsigned int *res);
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| 45 |
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| 46 | #endif /* __HDAC_LOCAL_H */
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