mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
234e340582
Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op. This leads to a
proliferation of the default_open() implementation across the entire
tree.
Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().
This replacement was done with the following semantic patch:
<smpl>
@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
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-f->private_data = i->i_private;
)
-return 0;
-}
@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};
</smpl>
[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
446 lines
11 KiB
C
446 lines
11 KiB
C
/**
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* Marvell Bluetooth driver: debugfs related functions
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*
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* Copyright (C) 2009, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available by writing to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
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* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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**/
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#include <linux/debugfs.h>
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#include <linux/slab.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include "btmrvl_drv.h"
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struct btmrvl_debugfs_data {
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struct dentry *config_dir;
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struct dentry *status_dir;
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/* config */
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struct dentry *psmode;
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struct dentry *pscmd;
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struct dentry *hsmode;
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struct dentry *hscmd;
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struct dentry *gpiogap;
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struct dentry *hscfgcmd;
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/* status */
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struct dentry *curpsmode;
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struct dentry *hsstate;
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struct dentry *psstate;
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struct dentry *txdnldready;
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};
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static ssize_t btmrvl_hscfgcmd_write(struct file *file,
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const char __user *ubuf, size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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long result, ret;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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if (ret)
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return ret;
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priv->btmrvl_dev.hscfgcmd = result;
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if (priv->btmrvl_dev.hscfgcmd) {
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btmrvl_prepare_command(priv);
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wake_up_interruptible(&priv->main_thread.wait_q);
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}
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return count;
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}
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static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.hscfgcmd);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hscfgcmd_fops = {
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.read = btmrvl_hscfgcmd_read,
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.write = btmrvl_hscfgcmd_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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long result, ret;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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if (ret)
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return ret;
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priv->btmrvl_dev.psmode = result;
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return count;
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}
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static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.psmode);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_psmode_fops = {
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.read = btmrvl_psmode_read,
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.write = btmrvl_psmode_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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long result, ret;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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if (ret)
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return ret;
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priv->btmrvl_dev.pscmd = result;
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if (priv->btmrvl_dev.pscmd) {
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btmrvl_prepare_command(priv);
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wake_up_interruptible(&priv->main_thread.wait_q);
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}
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return count;
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}
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static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_pscmd_fops = {
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.read = btmrvl_pscmd_read,
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.write = btmrvl_pscmd_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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long result, ret;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 16, &result);
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if (ret)
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return ret;
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priv->btmrvl_dev.gpio_gap = result;
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return count;
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}
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static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n",
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priv->btmrvl_dev.gpio_gap);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_gpiogap_fops = {
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.read = btmrvl_gpiogap_read,
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.write = btmrvl_gpiogap_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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long result, ret;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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if (ret)
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return ret;
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priv->btmrvl_dev.hscmd = result;
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if (priv->btmrvl_dev.hscmd) {
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btmrvl_prepare_command(priv);
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wake_up_interruptible(&priv->main_thread.wait_q);
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}
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return count;
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}
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static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hscmd_fops = {
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.read = btmrvl_hscmd_read,
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.write = btmrvl_hscmd_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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long result, ret;
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memset(buf, 0, sizeof(buf));
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if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
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return -EFAULT;
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ret = strict_strtol(buf, 10, &result);
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if (ret)
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return ret;
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priv->btmrvl_dev.hsmode = result;
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return count;
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}
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static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hsmode);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hsmode_fops = {
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.read = btmrvl_hsmode_read,
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.write = btmrvl_hsmode_write,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_curpsmode_fops = {
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.read = btmrvl_curpsmode_read,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->ps_state);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_psstate_fops = {
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.read = btmrvl_psstate_read,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->hs_state);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_hsstate_fops = {
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.read = btmrvl_hsstate_read,
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.open = simple_open,
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.llseek = default_llseek,
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};
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static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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struct btmrvl_private *priv = file->private_data;
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char buf[16];
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int ret;
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ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
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priv->btmrvl_dev.tx_dnld_rdy);
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return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
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}
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static const struct file_operations btmrvl_txdnldready_fops = {
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.read = btmrvl_txdnldready_read,
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.open = simple_open,
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.llseek = default_llseek,
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};
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void btmrvl_debugfs_init(struct hci_dev *hdev)
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{
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struct btmrvl_private *priv = hci_get_drvdata(hdev);
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struct btmrvl_debugfs_data *dbg;
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if (!hdev->debugfs)
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return;
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dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
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priv->debugfs_data = dbg;
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if (!dbg) {
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BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
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return;
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}
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dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
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dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir,
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priv, &btmrvl_psmode_fops);
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dbg->pscmd = debugfs_create_file("pscmd", 0644, dbg->config_dir,
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priv, &btmrvl_pscmd_fops);
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dbg->gpiogap = debugfs_create_file("gpiogap", 0644, dbg->config_dir,
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priv, &btmrvl_gpiogap_fops);
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dbg->hsmode = debugfs_create_file("hsmode", 0644, dbg->config_dir,
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priv, &btmrvl_hsmode_fops);
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dbg->hscmd = debugfs_create_file("hscmd", 0644, dbg->config_dir,
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priv, &btmrvl_hscmd_fops);
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dbg->hscfgcmd = debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
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priv, &btmrvl_hscfgcmd_fops);
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dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
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dbg->curpsmode = debugfs_create_file("curpsmode", 0444,
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dbg->status_dir, priv,
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&btmrvl_curpsmode_fops);
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dbg->psstate = debugfs_create_file("psstate", 0444, dbg->status_dir,
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priv, &btmrvl_psstate_fops);
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dbg->hsstate = debugfs_create_file("hsstate", 0444, dbg->status_dir,
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priv, &btmrvl_hsstate_fops);
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dbg->txdnldready = debugfs_create_file("txdnldready", 0444,
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dbg->status_dir, priv,
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&btmrvl_txdnldready_fops);
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}
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void btmrvl_debugfs_remove(struct hci_dev *hdev)
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{
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struct btmrvl_private *priv = hci_get_drvdata(hdev);
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struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
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if (!dbg)
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return;
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debugfs_remove(dbg->psmode);
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debugfs_remove(dbg->pscmd);
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debugfs_remove(dbg->gpiogap);
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debugfs_remove(dbg->hsmode);
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debugfs_remove(dbg->hscmd);
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debugfs_remove(dbg->hscfgcmd);
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debugfs_remove(dbg->config_dir);
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debugfs_remove(dbg->curpsmode);
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debugfs_remove(dbg->psstate);
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debugfs_remove(dbg->hsstate);
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debugfs_remove(dbg->txdnldready);
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debugfs_remove(dbg->status_dir);
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kfree(dbg);
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}
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