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;
|
-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>
447 lines
11 KiB
C
447 lines
11 KiB
C
/**
|
|
* Marvell Bluetooth driver: debugfs related functions
|
|
*
|
|
* Copyright (C) 2009, Marvell International Ltd.
|
|
*
|
|
* This software file (the "File") is distributed by Marvell International
|
|
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
|
|
* (the "License"). You may use, redistribute and/or modify this File in
|
|
* accordance with the terms and conditions of the License, a copy of which
|
|
* is available by writing to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
|
|
* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
|
|
*
|
|
*
|
|
* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
|
|
* this warranty disclaimer.
|
|
**/
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <net/bluetooth/bluetooth.h>
|
|
#include <net/bluetooth/hci_core.h>
|
|
|
|
#include "btmrvl_drv.h"
|
|
|
|
struct btmrvl_debugfs_data {
|
|
struct dentry *config_dir;
|
|
struct dentry *status_dir;
|
|
|
|
/* config */
|
|
struct dentry *psmode;
|
|
struct dentry *pscmd;
|
|
struct dentry *hsmode;
|
|
struct dentry *hscmd;
|
|
struct dentry *gpiogap;
|
|
struct dentry *hscfgcmd;
|
|
|
|
/* status */
|
|
struct dentry *curpsmode;
|
|
struct dentry *hsstate;
|
|
struct dentry *psstate;
|
|
struct dentry *txdnldready;
|
|
};
|
|
|
|
static ssize_t btmrvl_hscfgcmd_write(struct file *file,
|
|
const char __user *ubuf, size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
long result, ret;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
ret = strict_strtol(buf, 10, &result);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->btmrvl_dev.hscfgcmd = result;
|
|
|
|
if (priv->btmrvl_dev.hscfgcmd) {
|
|
btmrvl_prepare_command(priv);
|
|
wake_up_interruptible(&priv->main_thread.wait_q);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
|
|
priv->btmrvl_dev.hscfgcmd);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_hscfgcmd_fops = {
|
|
.read = btmrvl_hscfgcmd_read,
|
|
.write = btmrvl_hscfgcmd_write,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
long result, ret;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
ret = strict_strtol(buf, 10, &result);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->btmrvl_dev.psmode = result;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
|
|
priv->btmrvl_dev.psmode);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_psmode_fops = {
|
|
.read = btmrvl_psmode_read,
|
|
.write = btmrvl_psmode_write,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
long result, ret;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
ret = strict_strtol(buf, 10, &result);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->btmrvl_dev.pscmd = result;
|
|
|
|
if (priv->btmrvl_dev.pscmd) {
|
|
btmrvl_prepare_command(priv);
|
|
wake_up_interruptible(&priv->main_thread.wait_q);
|
|
}
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_pscmd_fops = {
|
|
.read = btmrvl_pscmd_read,
|
|
.write = btmrvl_pscmd_write,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
long result, ret;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
ret = strict_strtol(buf, 16, &result);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->btmrvl_dev.gpio_gap = result;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "0x%x\n",
|
|
priv->btmrvl_dev.gpio_gap);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_gpiogap_fops = {
|
|
.read = btmrvl_gpiogap_read,
|
|
.write = btmrvl_gpiogap_write,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
long result, ret;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
ret = strict_strtol(buf, 10, &result);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->btmrvl_dev.hscmd = result;
|
|
if (priv->btmrvl_dev.hscmd) {
|
|
btmrvl_prepare_command(priv);
|
|
wake_up_interruptible(&priv->main_thread.wait_q);
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_hscmd_fops = {
|
|
.read = btmrvl_hscmd_read,
|
|
.write = btmrvl_hscmd_write,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
long result, ret;
|
|
|
|
memset(buf, 0, sizeof(buf));
|
|
|
|
if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
|
|
return -EFAULT;
|
|
|
|
ret = strict_strtol(buf, 10, &result);
|
|
if (ret)
|
|
return ret;
|
|
|
|
priv->btmrvl_dev.hsmode = result;
|
|
|
|
return count;
|
|
}
|
|
|
|
static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hsmode);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_hsmode_fops = {
|
|
.read = btmrvl_hsmode_read,
|
|
.write = btmrvl_hsmode_write,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->psmode);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_curpsmode_fops = {
|
|
.read = btmrvl_curpsmode_read,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->ps_state);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_psstate_fops = {
|
|
.read = btmrvl_psstate_read,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->adapter->hs_state);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_hsstate_fops = {
|
|
.read = btmrvl_hsstate_read,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct btmrvl_private *priv = file->private_data;
|
|
char buf[16];
|
|
int ret;
|
|
|
|
ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
|
|
priv->btmrvl_dev.tx_dnld_rdy);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
|
|
static const struct file_operations btmrvl_txdnldready_fops = {
|
|
.read = btmrvl_txdnldready_read,
|
|
.open = simple_open,
|
|
.llseek = default_llseek,
|
|
};
|
|
|
|
void btmrvl_debugfs_init(struct hci_dev *hdev)
|
|
{
|
|
struct btmrvl_private *priv = hci_get_drvdata(hdev);
|
|
struct btmrvl_debugfs_data *dbg;
|
|
|
|
if (!hdev->debugfs)
|
|
return;
|
|
|
|
dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
|
|
priv->debugfs_data = dbg;
|
|
|
|
if (!dbg) {
|
|
BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
|
|
return;
|
|
}
|
|
|
|
dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
|
|
|
|
dbg->psmode = debugfs_create_file("psmode", 0644, dbg->config_dir,
|
|
priv, &btmrvl_psmode_fops);
|
|
dbg->pscmd = debugfs_create_file("pscmd", 0644, dbg->config_dir,
|
|
priv, &btmrvl_pscmd_fops);
|
|
dbg->gpiogap = debugfs_create_file("gpiogap", 0644, dbg->config_dir,
|
|
priv, &btmrvl_gpiogap_fops);
|
|
dbg->hsmode = debugfs_create_file("hsmode", 0644, dbg->config_dir,
|
|
priv, &btmrvl_hsmode_fops);
|
|
dbg->hscmd = debugfs_create_file("hscmd", 0644, dbg->config_dir,
|
|
priv, &btmrvl_hscmd_fops);
|
|
dbg->hscfgcmd = debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
|
|
priv, &btmrvl_hscfgcmd_fops);
|
|
|
|
dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
|
|
dbg->curpsmode = debugfs_create_file("curpsmode", 0444,
|
|
dbg->status_dir, priv,
|
|
&btmrvl_curpsmode_fops);
|
|
dbg->psstate = debugfs_create_file("psstate", 0444, dbg->status_dir,
|
|
priv, &btmrvl_psstate_fops);
|
|
dbg->hsstate = debugfs_create_file("hsstate", 0444, dbg->status_dir,
|
|
priv, &btmrvl_hsstate_fops);
|
|
dbg->txdnldready = debugfs_create_file("txdnldready", 0444,
|
|
dbg->status_dir, priv,
|
|
&btmrvl_txdnldready_fops);
|
|
}
|
|
|
|
void btmrvl_debugfs_remove(struct hci_dev *hdev)
|
|
{
|
|
struct btmrvl_private *priv = hci_get_drvdata(hdev);
|
|
struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
|
|
|
|
if (!dbg)
|
|
return;
|
|
|
|
debugfs_remove(dbg->psmode);
|
|
debugfs_remove(dbg->pscmd);
|
|
debugfs_remove(dbg->gpiogap);
|
|
debugfs_remove(dbg->hsmode);
|
|
debugfs_remove(dbg->hscmd);
|
|
debugfs_remove(dbg->hscfgcmd);
|
|
debugfs_remove(dbg->config_dir);
|
|
|
|
debugfs_remove(dbg->curpsmode);
|
|
debugfs_remove(dbg->psstate);
|
|
debugfs_remove(dbg->hsstate);
|
|
debugfs_remove(dbg->txdnldready);
|
|
debugfs_remove(dbg->status_dir);
|
|
|
|
kfree(dbg);
|
|
}
|