80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/* sound/soc/samsung/vts/vts_proc.c
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*
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* ALSA SoC Audio Layer - Samsung Abox Proc FS driver
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*
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* Copyright (c) 2020 Samsung Electronics Co. Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/debugfs.h>
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#include <linux/proc_fs.h>
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#include <linux/device.h>
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#include <linux/slab.h>
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#include "vts.h"
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#include "vts_proc.h"
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#define ROOT_DIR_NAME "vts"
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static struct proc_dir_entry *root;
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/* for backward compatibility */
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static struct dentry *debugfs_link;
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void *vts_proc_data(const struct file *file)
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{
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return PDE_DATA(file_inode(file));
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}
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struct proc_dir_entry *vts_proc_mkdir(const char *name,
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struct proc_dir_entry *parent)
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{
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if (!parent)
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parent = root;
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return proc_mkdir(name, parent);
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}
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void vts_proc_remove_file(struct proc_dir_entry *pde)
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{
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proc_remove(pde);
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}
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struct proc_dir_entry *vts_proc_create_file(const char *name, umode_t mode,
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struct proc_dir_entry *parent,
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const struct proc_ops *fops, void *data, size_t size)
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{
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struct proc_dir_entry *pde;
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if (!parent)
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parent = root;
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pde = proc_create_data(name, mode, parent, fops, data);
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if (!IS_ERR(pde))
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proc_set_size(pde, size);
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return pde;
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}
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int vts_proc_probe(void)
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{
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root = proc_mkdir(ROOT_DIR_NAME, NULL);
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/* for backward compatibility */
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debugfs_link = debugfs_create_symlink(ROOT_DIR_NAME, NULL,
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"/proc/"ROOT_DIR_NAME);
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return PTR_ERR_OR_ZERO(root);
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}
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void vts_proc_remove(void)
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{
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/* for backward compatibility */
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debugfs_remove(debugfs_link);
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proc_remove(root);
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}
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