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| author | Takashi Iwai <tiwai@suse.de> | 2025-07-09 18:04:04 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-07-11 09:55:36 +0200 |
| commit | ed677858d4fe8d165952c1794898d6fc0b65ddfe (patch) | |
| tree | 7680479a57b09af5fd8b7812f91f3669a8679e7b /include/sound | |
| parent | bee60f019606827363d7e355b2e859e29e928c3a (diff) | |
| download | linux-ed677858d4fe8d165952c1794898d6fc0b65ddfe.tar.gz | |
ALSA: hda: Move widget capability macros into hdaudio.h
The get_wcaps() and co are used not only by HD-audio core but also
other driver code, hence it'd be better to put into the common header
instead of local.h.
OTOH, there are macros of the same name like get_wcaps() that are
still used in sound/pci/hda/* locally, and those conflict with each
other. So we need to rename get_wcaps() (to be moved from hda-core)
with the proper snd_hdac prefix for avoiding name conflicts, and
define in the common hdaudio.h.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20250709160434.1859-2-tiwai@suse.de
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/hdaudio.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index 25668eee65cf3e..d38234f8fe4469 100644 --- a/include/sound/hdaudio.h +++ b/include/sound/hdaudio.h @@ -680,6 +680,30 @@ static inline void snd_hdac_dsp_cleanup(struct hdac_stream *azx_dev, } #endif /* CONFIG_SND_HDA_DSP_LOADER */ +/* + * Easy macros for widget capabilities + */ +#define snd_hdac_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 snd_hdac_get_wcaps_type(unsigned int wcaps) +{ + if (!wcaps) + return -1; /* invalid type */ + return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT; +} + +/* get the number of supported channels */ +static inline unsigned int snd_hdac_get_wcaps_channels(u32 wcaps) +{ + unsigned int chans; + + chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13; + chans = (chans + 1) * 2; + + return chans; +} /* * generic array helpers |