From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- sound/hda/local.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 sound/hda/local.h (limited to 'sound/hda/local.h') diff --git a/sound/hda/local.h b/sound/hda/local.h new file mode 100644 index 000000000..877631e39 --- /dev/null +++ b/sound/hda/local.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Local helper macros and functions for HD-audio core drivers + */ + +#ifndef __HDAC_LOCAL_H +#define __HDAC_LOCAL_H + +#define 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 get_wcaps_type(unsigned int wcaps) +{ + if (!wcaps) + return -1; /* invalid type */ + return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT; +} + +static inline unsigned int get_wcaps_channels(u32 wcaps) +{ + unsigned int chans; + + chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13; + chans = (chans + 1) * 2; + + return chans; +} + +extern const struct attribute_group *hdac_dev_attr_groups[]; +int hda_widget_sysfs_init(struct hdac_device *codec); +int hda_widget_sysfs_reinit(struct hdac_device *codec, hda_nid_t start_nid, + int num_nodes); +void hda_widget_sysfs_exit(struct hdac_device *codec); + +#endif /* __HDAC_LOCAL_H */ -- cgit v1.2.3