1 files changed, 0 insertions, 469 deletions

diff --git a/sound/hda/hdac_sysfs.c b/sound/hda/hdac_sysfs.c
deleted file mode 100644
index 62a9615dcf52..000000000000
--- a/sound/hda/hdac_sysfs.c
+++ /dev/null
@@ -1,469 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * 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 sysfs_emit(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 sysfs_emit(buf, "%s\n",				\
-			  codec->type ? codec->type : "");	\
-} \
-static DEVICE_ATTR_RO(type)
-
-CODEC_ATTR(type);
-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);
-
-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);
-
-static struct attribute *hdac_dev_attrs[] = {
-	&dev_attr_type.attr,
-	&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,
-	&dev_attr_modalias.attr,
-	NULL
-};
-
-static const 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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 sysfs_emit(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 += sysfs_emit_at(buf,  ret, "%s0x%02x", i ? " " : "", list[i]);
-	ret += sysfs_emit_at(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;
-	free_widget_node(tree->afg, &widget_afg_group);
-	if (tree->nodes) {
-		for (p = tree->nodes; *p; p++)
-			free_widget_node(*p, &widget_node_group);
-		kfree(tree->nodes);
-	}
-	kobject_put(tree->root);
-	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) {
-		kobject_put(kobj);
-		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;
-	}
-
-	if (codec->afg) {
-		err = add_widget_node(tree->root, codec->afg,
-				      &widget_afg_group, &tree->afg);
-		if (err < 0)
-			return err;
-	}
-
-	kobject_uevent(tree->root, KOBJ_CHANGE);
-	return 0;
-}
-
-/* call with codec->widget_lock held */
-int hda_widget_sysfs_init(struct hdac_device *codec)
-{
-	int err;
-
-	if (codec->widgets)
-		return 0; /* already created */
-
-	err = widget_tree_create(codec);
-	if (err < 0) {
-		widget_tree_free(codec);
-		return err;
-	}
-
-	return 0;
-}
-
-/* call with codec->widget_lock held */
-void hda_widget_sysfs_exit(struct hdac_device *codec)
-{
-	widget_tree_free(codec);
-}
-
-/* call with codec->widget_lock held */
-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 0;
-
-	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;
-}