From ed677858d4fe8d165952c1794898d6fc0b65ddfe Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 9 Jul 2025 18:04:04 +0200 Subject: 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 Link: https://patch.msgid.link/20250709160434.1859-2-tiwai@suse.de --- include/sound/hdaudio.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include') diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index 25668eee65cf..d38234f8fe44 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 -- cgit v1.2.3