License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 15:07:57 +01:00
|
|
|
// SPDX-License-Identifier: GPL-2.0
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
/*
|
|
|
|
* sysfs support for HD-audio core device
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/sysfs.h>
|
|
|
|
#include <linux/device.h>
|
|
|
|
#include <sound/core.h>
|
|
|
|
#include <sound/hdaudio.h>
|
|
|
|
#include "local.h"
|
|
|
|
|
|
|
|
struct hdac_widget_tree {
|
|
|
|
struct kobject *root;
|
|
|
|
struct kobject *afg;
|
|
|
|
struct kobject **nodes;
|
|
|
|
};
|
|
|
|
|
|
|
|
#define CODEC_ATTR(type) \
|
|
|
|
static ssize_t type##_show(struct device *dev, \
|
|
|
|
struct device_attribute *attr, \
|
|
|
|
char *buf) \
|
|
|
|
{ \
|
|
|
|
struct hdac_device *codec = dev_to_hdac_dev(dev); \
|
|
|
|
return sprintf(buf, "0x%x\n", codec->type); \
|
|
|
|
} \
|
|
|
|
static DEVICE_ATTR_RO(type)
|
|
|
|
|
|
|
|
#define CODEC_ATTR_STR(type) \
|
|
|
|
static ssize_t type##_show(struct device *dev, \
|
|
|
|
struct device_attribute *attr, \
|
|
|
|
char *buf) \
|
|
|
|
{ \
|
|
|
|
struct hdac_device *codec = dev_to_hdac_dev(dev); \
|
|
|
|
return sprintf(buf, "%s\n", \
|
|
|
|
codec->type ? codec->type : ""); \
|
|
|
|
} \
|
|
|
|
static DEVICE_ATTR_RO(type)
|
|
|
|
|
2015-04-13 10:43:54 +02:00
|
|
|
CODEC_ATTR(type);
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
CODEC_ATTR(vendor_id);
|
|
|
|
CODEC_ATTR(subsystem_id);
|
|
|
|
CODEC_ATTR(revision_id);
|
|
|
|
CODEC_ATTR(afg);
|
|
|
|
CODEC_ATTR(mfg);
|
|
|
|
CODEC_ATTR_STR(vendor_name);
|
|
|
|
CODEC_ATTR_STR(chip_name);
|
|
|
|
|
2015-09-29 10:26:47 +02:00
|
|
|
static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
return snd_hdac_codec_modalias(dev_to_hdac_dev(dev), buf, 256);
|
|
|
|
}
|
|
|
|
static DEVICE_ATTR_RO(modalias);
|
|
|
|
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
static struct attribute *hdac_dev_attrs[] = {
|
2015-04-13 10:43:54 +02:00
|
|
|
&dev_attr_type.attr,
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
&dev_attr_vendor_id.attr,
|
|
|
|
&dev_attr_subsystem_id.attr,
|
|
|
|
&dev_attr_revision_id.attr,
|
|
|
|
&dev_attr_afg.attr,
|
|
|
|
&dev_attr_mfg.attr,
|
|
|
|
&dev_attr_vendor_name.attr,
|
|
|
|
&dev_attr_chip_name.attr,
|
2015-09-29 10:26:47 +02:00
|
|
|
&dev_attr_modalias.attr,
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct attribute_group hdac_dev_attr_group = {
|
|
|
|
.attrs = hdac_dev_attrs,
|
|
|
|
};
|
|
|
|
|
|
|
|
const struct attribute_group *hdac_dev_attr_groups[] = {
|
|
|
|
&hdac_dev_attr_group,
|
|
|
|
NULL
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Widget tree sysfs
|
|
|
|
*
|
|
|
|
* This is a tree showing the attributes of each widget. It appears like
|
|
|
|
* /sys/bus/hdaudioC0D0/widgets/04/caps
|
|
|
|
*/
|
|
|
|
|
|
|
|
struct widget_attribute;
|
|
|
|
|
|
|
|
struct widget_attribute {
|
|
|
|
struct attribute attr;
|
|
|
|
ssize_t (*show)(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf);
|
|
|
|
ssize_t (*store)(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr,
|
|
|
|
const char *buf, size_t count);
|
|
|
|
};
|
|
|
|
|
|
|
|
static int get_codec_nid(struct kobject *kobj, struct hdac_device **codecp)
|
|
|
|
{
|
|
|
|
struct device *dev = kobj_to_dev(kobj->parent->parent);
|
|
|
|
int nid;
|
|
|
|
ssize_t ret;
|
|
|
|
|
|
|
|
ret = kstrtoint(kobj->name, 16, &nid);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
*codecp = dev_to_hdac_dev(dev);
|
|
|
|
return nid;
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t widget_attr_show(struct kobject *kobj, struct attribute *attr,
|
|
|
|
char *buf)
|
|
|
|
{
|
|
|
|
struct widget_attribute *wid_attr =
|
|
|
|
container_of(attr, struct widget_attribute, attr);
|
|
|
|
struct hdac_device *codec;
|
|
|
|
int nid;
|
|
|
|
|
|
|
|
if (!wid_attr->show)
|
|
|
|
return -EIO;
|
|
|
|
nid = get_codec_nid(kobj, &codec);
|
|
|
|
if (nid < 0)
|
|
|
|
return nid;
|
|
|
|
return wid_attr->show(codec, nid, wid_attr, buf);
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t widget_attr_store(struct kobject *kobj, struct attribute *attr,
|
|
|
|
const char *buf, size_t count)
|
|
|
|
{
|
|
|
|
struct widget_attribute *wid_attr =
|
|
|
|
container_of(attr, struct widget_attribute, attr);
|
|
|
|
struct hdac_device *codec;
|
|
|
|
int nid;
|
|
|
|
|
|
|
|
if (!wid_attr->store)
|
|
|
|
return -EIO;
|
|
|
|
nid = get_codec_nid(kobj, &codec);
|
|
|
|
if (nid < 0)
|
|
|
|
return nid;
|
|
|
|
return wid_attr->store(codec, nid, wid_attr, buf, count);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const struct sysfs_ops widget_sysfs_ops = {
|
|
|
|
.show = widget_attr_show,
|
|
|
|
.store = widget_attr_store,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void widget_release(struct kobject *kobj)
|
|
|
|
{
|
|
|
|
kfree(kobj);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct kobj_type widget_ktype = {
|
|
|
|
.release = widget_release,
|
|
|
|
.sysfs_ops = &widget_sysfs_ops,
|
|
|
|
};
|
|
|
|
|
|
|
|
#define WIDGET_ATTR_RO(_name) \
|
|
|
|
struct widget_attribute wid_attr_##_name = __ATTR_RO(_name)
|
|
|
|
#define WIDGET_ATTR_RW(_name) \
|
|
|
|
struct widget_attribute wid_attr_##_name = __ATTR_RW(_name)
|
|
|
|
|
|
|
|
static ssize_t caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
return sprintf(buf, "0x%08x\n", get_wcaps(codec, nid));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t pin_caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_PIN_CAP));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t pin_cfg_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
unsigned int val;
|
|
|
|
|
|
|
|
if (get_wcaps_type(get_wcaps(codec, nid)) != AC_WID_PIN)
|
|
|
|
return 0;
|
|
|
|
if (snd_hdac_read(codec, nid, AC_VERB_GET_CONFIG_DEFAULT, 0, &val))
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n", val);
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool has_pcm_cap(struct hdac_device *codec, hda_nid_t nid)
|
|
|
|
{
|
|
|
|
if (nid == codec->afg || nid == codec->mfg)
|
|
|
|
return true;
|
|
|
|
switch (get_wcaps_type(get_wcaps(codec, nid))) {
|
|
|
|
case AC_WID_AUD_OUT:
|
|
|
|
case AC_WID_AUD_IN:
|
|
|
|
return true;
|
|
|
|
default:
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t pcm_caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
if (!has_pcm_cap(codec, nid))
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_PCM));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t pcm_formats_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
if (!has_pcm_cap(codec, nid))
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_STREAM));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t amp_in_caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_IN_AMP))
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_AMP_IN_CAP));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t amp_out_caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_OUT_AMP))
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_AMP_OUT_CAP));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t power_caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
if (nid != codec->afg && !(get_wcaps(codec, nid) & AC_WCAP_POWER))
|
|
|
|
return 0;
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_POWER_STATE));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t gpio_caps_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
return sprintf(buf, "0x%08x\n",
|
|
|
|
snd_hdac_read_parm(codec, nid, AC_PAR_GPIO_CAP));
|
|
|
|
}
|
|
|
|
|
|
|
|
static ssize_t connections_show(struct hdac_device *codec, hda_nid_t nid,
|
|
|
|
struct widget_attribute *attr, char *buf)
|
|
|
|
{
|
|
|
|
hda_nid_t list[32];
|
|
|
|
int i, nconns;
|
|
|
|
ssize_t ret = 0;
|
|
|
|
|
|
|
|
nconns = snd_hdac_get_connections(codec, nid, list, ARRAY_SIZE(list));
|
|
|
|
if (nconns <= 0)
|
|
|
|
return nconns;
|
|
|
|
for (i = 0; i < nconns; i++)
|
|
|
|
ret += sprintf(buf + ret, "%s0x%02x", i ? " " : "", list[i]);
|
|
|
|
ret += sprintf(buf + ret, "\n");
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static WIDGET_ATTR_RO(caps);
|
|
|
|
static WIDGET_ATTR_RO(pin_caps);
|
|
|
|
static WIDGET_ATTR_RO(pin_cfg);
|
|
|
|
static WIDGET_ATTR_RO(pcm_caps);
|
|
|
|
static WIDGET_ATTR_RO(pcm_formats);
|
|
|
|
static WIDGET_ATTR_RO(amp_in_caps);
|
|
|
|
static WIDGET_ATTR_RO(amp_out_caps);
|
|
|
|
static WIDGET_ATTR_RO(power_caps);
|
|
|
|
static WIDGET_ATTR_RO(gpio_caps);
|
|
|
|
static WIDGET_ATTR_RO(connections);
|
|
|
|
|
|
|
|
static struct attribute *widget_node_attrs[] = {
|
|
|
|
&wid_attr_caps.attr,
|
|
|
|
&wid_attr_pin_caps.attr,
|
|
|
|
&wid_attr_pin_cfg.attr,
|
|
|
|
&wid_attr_pcm_caps.attr,
|
|
|
|
&wid_attr_pcm_formats.attr,
|
|
|
|
&wid_attr_amp_in_caps.attr,
|
|
|
|
&wid_attr_amp_out_caps.attr,
|
|
|
|
&wid_attr_power_caps.attr,
|
|
|
|
&wid_attr_connections.attr,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct attribute *widget_afg_attrs[] = {
|
|
|
|
&wid_attr_pcm_caps.attr,
|
|
|
|
&wid_attr_pcm_formats.attr,
|
|
|
|
&wid_attr_amp_in_caps.attr,
|
|
|
|
&wid_attr_amp_out_caps.attr,
|
|
|
|
&wid_attr_power_caps.attr,
|
|
|
|
&wid_attr_gpio_caps.attr,
|
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group widget_node_group = {
|
|
|
|
.attrs = widget_node_attrs,
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct attribute_group widget_afg_group = {
|
|
|
|
.attrs = widget_afg_attrs,
|
|
|
|
};
|
|
|
|
|
|
|
|
static void free_widget_node(struct kobject *kobj,
|
|
|
|
const struct attribute_group *group)
|
|
|
|
{
|
|
|
|
if (kobj) {
|
|
|
|
sysfs_remove_group(kobj, group);
|
|
|
|
kobject_put(kobj);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void widget_tree_free(struct hdac_device *codec)
|
|
|
|
{
|
|
|
|
struct hdac_widget_tree *tree = codec->widgets;
|
|
|
|
struct kobject **p;
|
|
|
|
|
|
|
|
if (!tree)
|
|
|
|
return;
|
2015-04-08 11:41:59 +02:00
|
|
|
free_widget_node(tree->afg, &widget_afg_group);
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
if (tree->nodes) {
|
|
|
|
for (p = tree->nodes; *p; p++)
|
|
|
|
free_widget_node(*p, &widget_node_group);
|
|
|
|
kfree(tree->nodes);
|
|
|
|
}
|
2015-07-08 21:26:02 +02:00
|
|
|
kobject_put(tree->root);
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
kfree(tree);
|
|
|
|
codec->widgets = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int add_widget_node(struct kobject *parent, hda_nid_t nid,
|
|
|
|
const struct attribute_group *group,
|
|
|
|
struct kobject **res)
|
|
|
|
{
|
|
|
|
struct kobject *kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
|
|
|
|
int err;
|
|
|
|
|
|
|
|
if (!kobj)
|
|
|
|
return -ENOMEM;
|
|
|
|
kobject_init(kobj, &widget_ktype);
|
|
|
|
err = kobject_add(kobj, parent, "%02x", nid);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
err = sysfs_create_group(kobj, group);
|
|
|
|
if (err < 0) {
|
|
|
|
kobject_put(kobj);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
*res = kobj;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int widget_tree_create(struct hdac_device *codec)
|
|
|
|
{
|
|
|
|
struct hdac_widget_tree *tree;
|
|
|
|
int i, err;
|
|
|
|
hda_nid_t nid;
|
|
|
|
|
|
|
|
tree = codec->widgets = kzalloc(sizeof(*tree), GFP_KERNEL);
|
|
|
|
if (!tree)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
tree->root = kobject_create_and_add("widgets", &codec->dev.kobj);
|
|
|
|
if (!tree->root)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
tree->nodes = kcalloc(codec->num_nodes + 1, sizeof(*tree->nodes),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!tree->nodes)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) {
|
|
|
|
err = add_widget_node(tree->root, nid, &widget_node_group,
|
|
|
|
&tree->nodes[i]);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2015-04-08 11:41:59 +02:00
|
|
|
if (codec->afg) {
|
|
|
|
err = add_widget_node(tree->root, codec->afg,
|
|
|
|
&widget_afg_group, &tree->afg);
|
|
|
|
if (err < 0)
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
kobject_uevent(tree->root, KOBJ_CHANGE);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
int hda_widget_sysfs_init(struct hdac_device *codec)
|
|
|
|
{
|
|
|
|
int err;
|
|
|
|
|
2015-08-26 07:22:49 +02:00
|
|
|
if (codec->widgets)
|
|
|
|
return 0; /* already created */
|
|
|
|
|
ALSA: hda - Add widget sysfs tree
This patch changes the sysfs files assigned to the codec device on the
bus which were formerly identical with hwdep sysfs files. Now it
shows only a few core parameter, vendor_id, subsystem_id, revision_id,
afg, mfg, vendor_name and chip_name.
In addition, now a widget tree is added to the bus device sysfs
directory for showing the widget topology and attributes. It's just a
flat tree consisting of subdirectories named as the widget NID
including various attributes like widget capability bits. The AFG
(usually NID 0x01) is always found there, and it contains always
amp_in_caps, amp_out_caps and power_caps files. Each of these
attributes show a single value. The rest are the widget nodes
belonging to that AFG. Note that the child node might not start from
0x02 but from another value like 0x0a.
Each child node may contain caps, pin_caps, amp_in_caps, amp_out_caps,
power_caps and connections files. The caps (representing the widget
capability bits) always contain a value. The rest may contain
value(s) if the attribute exists on the node. Only connections file
show multiple values while other attributes have zero or one single
value.
An example of ls -R output is like below:
% ls -R /sys/bus/hdaudio/devices/hdaudioC0D0/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/:
01/ 04/ 07/ 0a/ 0d/ 10/ 13/ 16/ 19/ 1c/ 1f/ 22/
02/ 05/ 08/ 0b/ 0e/ 11/ 14/ 17/ 1a/ 1d/ 20/ 23/
03/ 06/ 09/ 0c/ 0f/ 12/ 15/ 18/ 1b/ 1e/ 21/
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/01:
amp_in_caps amp_out_caps power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/02:
amp_in_caps amp_out_caps caps connections pin_caps pin_cfg
power_caps
/sys/bus/hdaudio/devices/hdaudioC0D0/widgets/03:
.....
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-02-24 14:59:42 +01:00
|
|
|
err = widget_tree_create(codec);
|
|
|
|
if (err < 0) {
|
|
|
|
widget_tree_free(codec);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void hda_widget_sysfs_exit(struct hdac_device *codec)
|
|
|
|
{
|
|
|
|
widget_tree_free(codec);
|
|
|
|
}
|
2017-10-18 15:51:59 +02:00
|
|
|
|
|
|
|
int hda_widget_sysfs_reinit(struct hdac_device *codec,
|
|
|
|
hda_nid_t start_nid, int num_nodes)
|
|
|
|
{
|
|
|
|
struct hdac_widget_tree *tree;
|
|
|
|
hda_nid_t end_nid = start_nid + num_nodes;
|
|
|
|
hda_nid_t nid;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (!codec->widgets)
|
|
|
|
return hda_widget_sysfs_init(codec);
|
|
|
|
|
|
|
|
tree = kmemdup(codec->widgets, sizeof(*tree), GFP_KERNEL);
|
|
|
|
if (!tree)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
tree->nodes = kcalloc(num_nodes + 1, sizeof(*tree->nodes), GFP_KERNEL);
|
|
|
|
if (!tree->nodes) {
|
|
|
|
kfree(tree);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* prune non-existing nodes */
|
|
|
|
for (i = 0, nid = codec->start_nid; i < codec->num_nodes; i++, nid++) {
|
|
|
|
if (nid < start_nid || nid >= end_nid)
|
|
|
|
free_widget_node(codec->widgets->nodes[i],
|
|
|
|
&widget_node_group);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add new nodes */
|
|
|
|
for (i = 0, nid = start_nid; i < num_nodes; i++, nid++) {
|
|
|
|
if (nid < codec->start_nid || nid >= codec->end_nid)
|
|
|
|
add_widget_node(tree->root, nid, &widget_node_group,
|
|
|
|
&tree->nodes[i]);
|
|
|
|
else
|
|
|
|
tree->nodes[i] =
|
|
|
|
codec->widgets->nodes[nid - codec->start_nid];
|
|
|
|
}
|
|
|
|
|
|
|
|
/* replace with the new tree */
|
|
|
|
kfree(codec->widgets->nodes);
|
|
|
|
kfree(codec->widgets);
|
|
|
|
codec->widgets = tree;
|
|
|
|
|
|
|
|
kobject_uevent(tree->root, KOBJ_CHANGE);
|
|
|
|
return 0;
|
|
|
|
}
|