^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * cfg80211 debugfs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2009 Luis R. Rodriguez <lrodriguez@atheros.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "debugfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) static ssize_t name## _read(struct file *file, char __user *userbuf, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) size_t count, loff_t *ppos) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) struct wiphy *wiphy = file->private_data; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) char buf[buflen]; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int res; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) res = scnprintf(buf, buflen, fmt "\n", ##value); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static const struct file_operations name## _ops = { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) .read = name## _read, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) .open = simple_open, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) .llseek = generic_file_llseek, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) wiphy->rts_threshold);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) wiphy->frag_threshold);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) wiphy->retry_short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) wiphy->retry_long);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) static int ht_print_chan(struct ieee80211_channel *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) char *buf, int buf_size, int offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (WARN_ON(offset > buf_size))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) if (chan->flags & IEEE80211_CHAN_DISABLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return scnprintf(buf + offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) buf_size - offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) "%d Disabled\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) chan->center_freq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return scnprintf(buf + offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) buf_size - offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) "%d HT40 %c%c\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) chan->center_freq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) ' ' : '-',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) ' ' : '+');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static ssize_t ht40allow_map_read(struct file *file,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) char __user *user_buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) size_t count, loff_t *ppos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) struct wiphy *wiphy = file->private_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) char *buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) unsigned int offset = 0, buf_size = PAGE_SIZE, i, r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) enum nl80211_band band;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct ieee80211_supported_band *sband;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) buf = kzalloc(buf_size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) for (band = 0; band < NUM_NL80211_BANDS; band++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) sband = wiphy->bands[band];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) if (!sband)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) for (i = 0; i < sband->n_channels; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) offset += ht_print_chan(&sband->channels[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) buf, buf_size, offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) r = simple_read_from_buffer(user_buf, count, ppos, buf, offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) return r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) static const struct file_operations ht40allow_map_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .read = ht40allow_map_read,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .open = simple_open,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .llseek = default_llseek,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #define DEBUGFS_ADD(name) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) debugfs_create_file(#name, 0444, phyd, &rdev->wiphy, &name## _ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) void cfg80211_debugfs_rdev_add(struct cfg80211_registered_device *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct dentry *phyd = rdev->wiphy.debugfsdir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) DEBUGFS_ADD(rts_threshold);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) DEBUGFS_ADD(fragmentation_threshold);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) DEBUGFS_ADD(short_retry_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) DEBUGFS_ADD(long_retry_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) DEBUGFS_ADD(ht40allow_map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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