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ALSA: hdac: Copy codec helpers to core

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The current codec helpers are local to hda code and needs to be moved to
core so that other users can use it.
The helpers to read/write the codec and to check the
power state of widgets is copied

Signed-off-by: Subhransu S. Prusty <[email protected]>
Signed-off-by: Vinod Koul <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Subhransu S. Prusty 2015-10-08 09:48:05 +01:00 • committed by Takashi Iwai
commit 1b5e6167c2
2 changed files with 87 additions and 0 deletions
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6
include/sound/hdaudio.h
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@ -147,6 +147,12 @@ int snd_hdac_query_supported_pcm(struct hdac_device *codec, hda_nid_t nid,
bool snd_hdac_is_supported_format(struct hdac_device *codec, hda_nid_t nid,
unsigned int format);
int snd_hdac_codec_read(struct hdac_device *hdac, hda_nid_t nid,
int flags, unsigned int verb, unsigned int parm);
int snd_hdac_codec_write(struct hdac_device *hdac, hda_nid_t nid,
int flags, unsigned int verb, unsigned int parm);
bool snd_hdac_check_power_state(struct hdac_device *hdac,
hda_nid_t nid, unsigned int target_state);
/**
* snd_hdac_read_parm - read a codec parameter
* @codec: the codec object