mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
80a3511d70
Here's a screenshot of what this looks like with ath9k: mcgrof@pogo /debug/ieee80211/phy0 $ cat ht40allow_map 2412 HT40 + 2417 HT40 + 2422 HT40 + 2427 HT40 + 2432 HT40 -+ 2437 HT40 -+ 2442 HT40 -+ 2447 HT40 - 2452 HT40 - 2457 HT40 - 2462 HT40 - 2467 Disabled 2472 Disabled 2484 Disabled 5180 HT40 + 5200 HT40 -+ 5220 HT40 -+ 5240 HT40 -+ 5260 HT40 -+ 5280 HT40 -+ 5300 HT40 -+ 5320 HT40 - 5500 HT40 + 5520 HT40 -+ 5540 HT40 -+ 5560 HT40 -+ 5580 HT40 -+ 5600 HT40 -+ 5620 HT40 -+ 5640 HT40 -+ 5660 HT40 -+ 5680 HT40 -+ 5700 HT40 - 5745 HT40 + 5765 HT40 -+ 5785 HT40 -+ 5805 HT40 -+ 5825 HT40 - Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
131 lines
3.5 KiB
C
131 lines
3.5 KiB
C
/*
|
|
* cfg80211 debugfs
|
|
*
|
|
* Copyright 2009 Luis R. Rodriguez <lrodriguez@atheros.com>
|
|
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include "core.h"
|
|
#include "debugfs.h"
|
|
|
|
static int cfg80211_open_file_generic(struct inode *inode, struct file *file)
|
|
{
|
|
file->private_data = inode->i_private;
|
|
return 0;
|
|
}
|
|
|
|
#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
|
|
static ssize_t name## _read(struct file *file, char __user *userbuf, \
|
|
size_t count, loff_t *ppos) \
|
|
{ \
|
|
struct wiphy *wiphy= file->private_data; \
|
|
char buf[buflen]; \
|
|
int res; \
|
|
\
|
|
res = scnprintf(buf, buflen, fmt "\n", ##value); \
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
|
|
} \
|
|
\
|
|
static const struct file_operations name## _ops = { \
|
|
.read = name## _read, \
|
|
.open = cfg80211_open_file_generic, \
|
|
};
|
|
|
|
DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
|
|
wiphy->rts_threshold)
|
|
DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
|
|
wiphy->frag_threshold);
|
|
DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
|
|
wiphy->retry_short)
|
|
DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
|
|
wiphy->retry_long);
|
|
|
|
static int ht_print_chan(struct ieee80211_channel *chan,
|
|
char *buf, int buf_size, int offset)
|
|
{
|
|
if (WARN_ON(offset > buf_size))
|
|
return 0;
|
|
|
|
if (chan->flags & IEEE80211_CHAN_DISABLED)
|
|
return snprintf(buf + offset,
|
|
buf_size - offset,
|
|
"%d Disabled\n",
|
|
chan->center_freq);
|
|
|
|
return snprintf(buf + offset,
|
|
buf_size - offset,
|
|
"%d HT40 %c%c\n",
|
|
chan->center_freq,
|
|
(chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ? ' ' : '-',
|
|
(chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ? ' ' : '+');
|
|
}
|
|
|
|
static ssize_t ht40allow_map_read(struct file *file,
|
|
char __user *user_buf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct wiphy *wiphy = file->private_data;
|
|
char *buf;
|
|
unsigned int offset = 0, buf_size = PAGE_SIZE, i, r;
|
|
enum ieee80211_band band;
|
|
struct ieee80211_supported_band *sband;
|
|
|
|
buf = kzalloc(buf_size, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
mutex_lock(&cfg80211_mutex);
|
|
|
|
for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
|
sband = wiphy->bands[band];
|
|
if (!sband)
|
|
continue;
|
|
for (i = 0; i < sband->n_channels; i++)
|
|
offset += ht_print_chan(&sband->channels[i],
|
|
buf, buf_size, offset);
|
|
}
|
|
|
|
mutex_unlock(&cfg80211_mutex);
|
|
|
|
r = simple_read_from_buffer(user_buf, count, ppos, buf, offset);
|
|
|
|
kfree(buf);
|
|
|
|
return r;
|
|
}
|
|
|
|
static const struct file_operations ht40allow_map_ops = {
|
|
.read = ht40allow_map_read,
|
|
.open = cfg80211_open_file_generic,
|
|
};
|
|
|
|
#define DEBUGFS_ADD(name) \
|
|
drv->debugfs.name = debugfs_create_file(#name, S_IRUGO, phyd, \
|
|
&drv->wiphy, &name## _ops);
|
|
#define DEBUGFS_DEL(name) \
|
|
debugfs_remove(drv->debugfs.name); \
|
|
drv->debugfs.name = NULL;
|
|
|
|
void cfg80211_debugfs_drv_add(struct cfg80211_registered_device *drv)
|
|
{
|
|
struct dentry *phyd = drv->wiphy.debugfsdir;
|
|
|
|
DEBUGFS_ADD(rts_threshold);
|
|
DEBUGFS_ADD(fragmentation_threshold);
|
|
DEBUGFS_ADD(short_retry_limit);
|
|
DEBUGFS_ADD(long_retry_limit);
|
|
DEBUGFS_ADD(ht40allow_map);
|
|
}
|
|
|
|
void cfg80211_debugfs_drv_del(struct cfg80211_registered_device *drv)
|
|
{
|
|
DEBUGFS_DEL(rts_threshold);
|
|
DEBUGFS_DEL(fragmentation_threshold);
|
|
DEBUGFS_DEL(short_retry_limit);
|
|
DEBUGFS_DEL(long_retry_limit);
|
|
DEBUGFS_DEL(ht40allow_map);
|
|
}
|