/* SPDX-License-Identifier: GPL-2.0 */ /* * HD - audio regmap helpers #ifndef __SOUND_HDA_REGMAP_H#define __SOUND_HDA_REGMAP_H#include <linux/regmap.h>#include <sound/core.h>#include <sound/hdaudio.h>#define AC_AMP_FAKE_MUTE 0 x10 /* fake mute bit set to amp verbs */ int snd_hdac_regmap_init(struct hdac_device *codec);void snd_hdac_regmap_exit(struct hdac_device *codec);int snd_hdac_regmap_add_vendor_verb(struct hdac_device *codec,unsigned int verb);int snd_hdac_regmap_read_raw(struct hdac_device *codec, unsigned int reg,unsigned int *val);int snd_hdac_regmap_read_raw_uncached(struct hdac_device *codec,unsigned int reg, unsigned int *val);int snd_hdac_regmap_write_raw(struct hdac_device *codec, unsigned int reg,unsigned int val);int snd_hdac_regmap_update_raw(struct hdac_device *codec, unsigned int reg,unsigned int mask, unsigned int val);int snd_hdac_regmap_update_raw_once(struct hdac_device *codec, unsigned int reg,unsigned int mask, unsigned int val);void snd_hdac_regmap_sync(struct hdac_device *codec);/** * snd_hdac_regmap_encode_verb - encode the verb to a pseudo register * @ nid : widget NID * @ verb : codec verb * * Returns an encoded pseudo register . #define snd_hdac_regmap_encode_verb(nid, verb) \8 ) | 0 x80000 | ((unsigned int )(nid) << 20 ))/** * snd_hdac_regmap_encode_amp - encode the AMP verb to a pseudo register * @ nid : widget NID * @ ch : channel ( left = 0 , right = 1 ) * @ dir : direction ( # HDA_INPUT , # HDA_OUTPUT ) * @ idx : input index value * * Returns an encoded pseudo register . #define snd_hdac_regmap_encode_amp(nid, ch, dir, idx) \/** * snd_hdac_regmap_encode_amp_stereo - encode a pseudo register for stereo AMPs * @ nid : widget NID * @ dir : direction ( # HDA_INPUT , # HDA_OUTPUT ) * @ idx : input index value * * Returns an encoded pseudo register . #define snd_hdac_regmap_encode_amp_stereo(nid, dir, idx) \/* both bits set! */ \ /** * snd_hdac_regmap_write - Write a verb with caching * @ nid : codec NID * @ reg : verb to write * @ val : value to write * * For writing an amp value , use snd_hdac_regmap_update_amp ( ) . static inline int struct hdac_device *codec, hda_nid_t nid,unsigned int verb, unsigned int val)unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);return snd_hdac_regmap_write_raw(codec, cmd, val);/** * snd_hda_regmap_update - Update a verb value with caching * @ nid : codec NID * @ verb : verb to update * @ mask : bit mask to update * @ val : value to update * * For updating an amp value , use snd_hdac_regmap_update_amp ( ) . static inline int struct hdac_device *codec, hda_nid_t nid,unsigned int verb, unsigned int mask,unsigned int val)unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);return snd_hdac_regmap_update_raw(codec, cmd, mask, val);/** * snd_hda_regmap_read - Read a verb with caching * @ nid : codec NID * @ verb : verb to read * @ val : pointer to store the value * * For reading an amp value , use snd_hda_regmap_get_amp ( ) . static inline int struct hdac_device *codec, hda_nid_t nid,unsigned int verb, unsigned int *val)unsigned int cmd = snd_hdac_regmap_encode_verb(nid, verb);return snd_hdac_regmap_read_raw(codec, cmd, val);/** * snd_hdac_regmap_get_amp - Read AMP value * @ codec : HD - audio codec * @ nid : NID to read the AMP value * @ ch : channel ( left = 0 or right = 1 ) * @ direction : # HDA_INPUT or # HDA_OUTPUT * @ index : the index value ( only for input direction ) * @ val : the pointer to store the value * * Read AMP value . The volume is between 0 to 0 x7f , 0 x80 = mute bit . * Returns the value or a negative error . static inline int struct hdac_device *codec, hda_nid_t nid,int ch, int dir, int idx)unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);int err, val;return err < 0 ? err : val;/** * snd_hdac_regmap_update_amp - update the AMP value * @ codec : HD - audio codec * @ nid : NID to read the AMP value * @ ch : channel ( left = 0 or right = 1 ) * @ direction : # HDA_INPUT or # HDA_OUTPUT * @ idx : the index value ( only for input direction ) * @ mask : bit mask to set * @ val : the bits value to set * * Update the AMP value with a bit mask . * Returns 0 if the value is unchanged , 1 if changed , or a negative error . static inline int struct hdac_device *codec, hda_nid_t nid,int ch, int dir, int idx, int mask, int val)unsigned int cmd = snd_hdac_regmap_encode_amp(nid, ch, dir, idx);return snd_hdac_regmap_update_raw(codec, cmd, mask, val);/** * snd_hdac_regmap_get_amp_stereo - Read stereo AMP values * @ codec : HD - audio codec * @ nid : NID to read the AMP value * @ ch : channel ( left = 0 or right = 1 ) * @ direction : # HDA_INPUT or # HDA_OUTPUT * @ index : the index value ( only for input direction ) * @ val : the pointer to store the value * * Read stereo AMP values . The lower byte is left , the upper byte is right . * Returns the value or a negative error . static inline int struct hdac_device *codec, hda_nid_t nid,int dir, int idx)unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);int err, val;return err < 0 ? err : val;/** * snd_hdac_regmap_update_amp_stereo - update the stereo AMP value * @ codec : HD - audio codec * @ nid : NID to read the AMP value * @ direction : # HDA_INPUT or # HDA_OUTPUT * @ idx : the index value ( only for input direction ) * @ mask : bit mask to set * @ val : the bits value to set * * Update the stereo AMP value with a bit mask . * The lower byte is left , the upper byte is right . * Returns 0 if the value is unchanged , 1 if changed , or a negative error . static inline int struct hdac_device *codec, hda_nid_t nid,int dir, int idx, int mask, int val)unsigned int cmd = snd_hdac_regmap_encode_amp_stereo(nid, dir, idx);return snd_hdac_regmap_update_raw(codec, cmd, mask, val);/** * snd_hdac_regmap_sync_node - sync the widget node attributes * @ codec : HD - audio codec * @ nid : NID to sync static inline void struct hdac_device *codec, hda_nid_t nid)20 , ((nid + 1 ) << 20 ) - 1 );#endif /* __SOUND_HDA_REGMAP_H */
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¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-09-28)
¤ *© Formatika GbR, Deutschland
