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00011 #include <linux/debugfs.h>
00012 #include <linux/rtnetlink.h>
00013 #include "ieee80211_i.h"
00014 #include "driver-ops.h"
00015 #include "rate.h"
00016 #include "debugfs.h"
00017
00018 int mac80211_open_file_generic(struct inode *inode, struct file *file)
00019 {
00020 file->private_data = inode->i_private;
00021 return 0;
00022 }
00023
00024 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
00025
00026 int mac80211_format_buffer(char __user *userbuf, size_t count,
00027 loff_t *ppos, char *fmt, ...)
00028 {
00029 va_list args;
00030 char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
00031 int res;
00032
00033 va_start(args, fmt);
00034 res = vscnprintf(buf, sizeof(buf), fmt, args);
00035 va_end(args);
00036
00037 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
00038 }
00039
00040 #define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
00041 static ssize_t name## _read(struct file *file, char __user *userbuf, \
00042 size_t count, loff_t *ppos) \
00043 { \
00044 struct ieee80211_local *local = file->private_data; \
00045 \
00046 return mac80211_format_buffer(userbuf, count, ppos, \
00047 fmt "\n", ##value); \
00048 }
00049
00050 #define DEBUGFS_READONLY_FILE_OPS(name) \
00051 static const struct file_operations name## _ops = { \
00052 .read = name## _read, \
00053 .open = mac80211_open_file_generic, \
00054 .llseek = generic_file_llseek, \
00055 };
00056
00057 #define DEBUGFS_READONLY_FILE(name, fmt, value...) \
00058 DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
00059 DEBUGFS_READONLY_FILE_OPS(name)
00060
00061 #define DEBUGFS_ADD(name) \
00062 debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
00063
00064 #define DEBUGFS_ADD_MODE(name, mode) \
00065 debugfs_create_file(#name, mode, phyd, local, &name## _ops);
00066
00067
00068 DEBUGFS_READONLY_FILE(user_power, "%d",
00069 local->user_power_level);
00070 DEBUGFS_READONLY_FILE(power, "%d",
00071 local->hw.conf.power_level);
00072 DEBUGFS_READONLY_FILE(frequency, "%d",
00073 local->hw.conf.channel->center_freq);
00074 DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
00075 local->total_ps_buffered);
00076 DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
00077 local->wep_iv & 0xffffff);
00078 DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
00079 local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
00080
00081 static ssize_t reset_write(struct file *file, const char __user *user_buf,
00082 size_t count, loff_t *ppos)
00083 {
00084 struct ieee80211_local *local = file->private_data;
00085
00086 rtnl_lock();
00087 __ieee80211_suspend(&local->hw, NULL);
00088 __ieee80211_resume(&local->hw);
00089 rtnl_unlock();
00090
00091 return count;
00092 }
00093
00094 static const struct file_operations reset_ops = {
00095 .write = reset_write,
00096 .open = mac80211_open_file_generic,
00097 .llseek = noop_llseek,
00098 };
00099
00100 static ssize_t noack_read(struct file *file, char __user *user_buf,
00101 size_t count, loff_t *ppos)
00102 {
00103 struct ieee80211_local *local = file->private_data;
00104
00105 return mac80211_format_buffer(user_buf, count, ppos, "%d\n",
00106 local->wifi_wme_noack_test);
00107 }
00108
00109 static ssize_t noack_write(struct file *file,
00110 const char __user *user_buf,
00111 size_t count, loff_t *ppos)
00112 {
00113 struct ieee80211_local *local = file->private_data;
00114 char buf[10];
00115 size_t len;
00116
00117 len = min(count, sizeof(buf) - 1);
00118 if (copy_from_user(buf, user_buf, len))
00119 return -EFAULT;
00120 buf[len] = '\0';
00121
00122 local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
00123
00124 return count;
00125 }
00126
00127 static const struct file_operations noack_ops = {
00128 .read = noack_read,
00129 .write = noack_write,
00130 .open = mac80211_open_file_generic,
00131 .llseek = default_llseek,
00132 };
00133
00134 static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
00135 size_t count, loff_t *ppos)
00136 {
00137 struct ieee80211_local *local = file->private_data;
00138 return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
00139 local->uapsd_queues);
00140 }
00141
00142 static ssize_t uapsd_queues_write(struct file *file,
00143 const char __user *user_buf,
00144 size_t count, loff_t *ppos)
00145 {
00146 struct ieee80211_local *local = file->private_data;
00147 u8 val;
00148 int ret;
00149
00150 ret = kstrtou8_from_user(user_buf, count, 0, &val);
00151 if (ret)
00152 return ret;
00153
00154 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
00155 return -ERANGE;
00156
00157 local->uapsd_queues = val;
00158
00159 return count;
00160 }
00161
00162 static const struct file_operations uapsd_queues_ops = {
00163 .read = uapsd_queues_read,
00164 .write = uapsd_queues_write,
00165 .open = mac80211_open_file_generic,
00166 .llseek = default_llseek,
00167 };
00168
00169 static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf,
00170 size_t count, loff_t *ppos)
00171 {
00172 struct ieee80211_local *local = file->private_data;
00173
00174 return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
00175 local->uapsd_max_sp_len);
00176 }
00177
00178 static ssize_t uapsd_max_sp_len_write(struct file *file,
00179 const char __user *user_buf,
00180 size_t count, loff_t *ppos)
00181 {
00182 struct ieee80211_local *local = file->private_data;
00183 unsigned long val;
00184 char buf[10];
00185 size_t len;
00186 int ret;
00187
00188 len = min(count, sizeof(buf) - 1);
00189 if (copy_from_user(buf, user_buf, len))
00190 return -EFAULT;
00191 buf[len] = '\0';
00192
00193 ret = strict_strtoul(buf, 0, &val);
00194
00195 if (ret)
00196 return -EINVAL;
00197
00198 if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
00199 return -ERANGE;
00200
00201 local->uapsd_max_sp_len = val;
00202
00203 return count;
00204 }
00205
00206 static const struct file_operations uapsd_max_sp_len_ops = {
00207 .read = uapsd_max_sp_len_read,
00208 .write = uapsd_max_sp_len_write,
00209 .open = mac80211_open_file_generic,
00210 .llseek = default_llseek,
00211 };
00212
00213 static ssize_t channel_type_read(struct file *file, char __user *user_buf,
00214 size_t count, loff_t *ppos)
00215 {
00216 struct ieee80211_local *local = file->private_data;
00217 const char *buf;
00218
00219 switch (local->hw.conf.channel_type) {
00220 case NL80211_CHAN_NO_HT:
00221 buf = "no ht\n";
00222 break;
00223 case NL80211_CHAN_HT20:
00224 buf = "ht20\n";
00225 break;
00226 case NL80211_CHAN_HT40MINUS:
00227 buf = "ht40-\n";
00228 break;
00229 case NL80211_CHAN_HT40PLUS:
00230 buf = "ht40+\n";
00231 break;
00232 default:
00233 buf = "???";
00234 break;
00235 }
00236
00237 return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
00238 }
00239
00240 static ssize_t hwflags_read(struct file *file, char __user *user_buf,
00241 size_t count, loff_t *ppos)
00242 {
00243 struct ieee80211_local *local = file->private_data;
00244 int mxln = 500;
00245 ssize_t rv;
00246 char *buf = kzalloc(mxln, GFP_KERNEL);
00247 int sf = 0;
00248
00249 if (!buf)
00250 return 0;
00251
00252 sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
00253 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
00254 sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
00255 if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
00256 sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
00257 if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
00258 sf += snprintf(buf + sf, mxln - sf,
00259 "HOST_BCAST_PS_BUFFERING\n");
00260 if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
00261 sf += snprintf(buf + sf, mxln - sf,
00262 "2GHZ_SHORT_SLOT_INCAPABLE\n");
00263 if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
00264 sf += snprintf(buf + sf, mxln - sf,
00265 "2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
00266 if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
00267 sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
00268 if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
00269 sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
00270 if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
00271 sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\n");
00272 if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
00273 sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
00274 if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
00275 sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
00276 if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
00277 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
00278 if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
00279 sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
00280 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
00281 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
00282 if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
00283 sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
00284 if (local->hw.flags & IEEE80211_HW_BEACON_FILTER)
00285 sf += snprintf(buf + sf, mxln - sf, "BEACON_FILTER\n");
00286 if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
00287 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
00288 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
00289 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
00290 if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
00291 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
00292 if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
00293 sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
00294 if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
00295 sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
00296 if (local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)
00297 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_CQM_RSSI\n");
00298 if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
00299 sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
00300 if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
00301 sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
00302 if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
00303 sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
00304
00305 rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
00306 kfree(buf);
00307 return rv;
00308 }
00309
00310 static ssize_t queues_read(struct file *file, char __user *user_buf,
00311 size_t count, loff_t *ppos)
00312 {
00313 struct ieee80211_local *local = file->private_data;
00314 unsigned long flags;
00315 char buf[IEEE80211_MAX_QUEUES * 20];
00316 int q, res = 0;
00317
00318 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
00319 for (q = 0; q < local->hw.queues; q++)
00320 res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
00321 local->queue_stop_reasons[q],
00322 skb_queue_len(&local->pending[q]));
00323 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
00324
00325 return simple_read_from_buffer(user_buf, count, ppos, buf, res);
00326 }
00327
00328 DEBUGFS_READONLY_FILE_OPS(hwflags);
00329 DEBUGFS_READONLY_FILE_OPS(channel_type);
00330 DEBUGFS_READONLY_FILE_OPS(queues);
00331
00332
00333
00334 static ssize_t format_devstat_counter(struct ieee80211_local *local,
00335 char __user *userbuf,
00336 size_t count, loff_t *ppos,
00337 int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
00338 int buflen))
00339 {
00340 struct ieee80211_low_level_stats stats;
00341 char buf[20];
00342 int res;
00343
00344 rtnl_lock();
00345 res = drv_get_stats(local, &stats);
00346 rtnl_unlock();
00347 if (res)
00348 return res;
00349 res = printvalue(&stats, buf, sizeof(buf));
00350 return simple_read_from_buffer(userbuf, count, ppos, buf, res);
00351 }
00352
00353 #define DEBUGFS_DEVSTATS_FILE(name) \
00354 static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
00355 char *buf, int buflen) \
00356 { \
00357 return scnprintf(buf, buflen, "%u\n", stats->name); \
00358 } \
00359 static ssize_t stats_ ##name## _read(struct file *file, \
00360 char __user *userbuf, \
00361 size_t count, loff_t *ppos) \
00362 { \
00363 return format_devstat_counter(file->private_data, \
00364 userbuf, \
00365 count, \
00366 ppos, \
00367 print_devstats_##name); \
00368 } \
00369 \
00370 static const struct file_operations stats_ ##name## _ops = { \
00371 .read = stats_ ##name## _read, \
00372 .open = mac80211_open_file_generic, \
00373 .llseek = generic_file_llseek, \
00374 };
00375
00376 #define DEBUGFS_STATS_ADD(name, field) \
00377 debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
00378 #define DEBUGFS_DEVSTATS_ADD(name) \
00379 debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
00380
00381 DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
00382 DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
00383 DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
00384 DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
00385
00386 void debugfs_hw_add(struct ieee80211_local *local)
00387 {
00388 struct dentry *phyd = local->hw.wiphy->debugfsdir;
00389 struct dentry *statsd;
00390
00391 if (!phyd)
00392 return;
00393
00394 local->debugfs.keys = debugfs_create_dir("keys", phyd);
00395
00396 DEBUGFS_ADD(frequency);
00397 DEBUGFS_ADD(total_ps_buffered);
00398 DEBUGFS_ADD(wep_iv);
00399 DEBUGFS_ADD(queues);
00400 DEBUGFS_ADD_MODE(reset, 0200);
00401 DEBUGFS_ADD(noack);
00402 DEBUGFS_ADD(uapsd_queues);
00403 DEBUGFS_ADD(uapsd_max_sp_len);
00404 DEBUGFS_ADD(channel_type);
00405 DEBUGFS_ADD(hwflags);
00406 DEBUGFS_ADD(user_power);
00407 DEBUGFS_ADD(power);
00408
00409 statsd = debugfs_create_dir("statistics", phyd);
00410
00411
00412 if (!statsd)
00413 return;
00414
00415 DEBUGFS_STATS_ADD(transmitted_fragment_count,
00416 local->dot11TransmittedFragmentCount);
00417 DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
00418 local->dot11MulticastTransmittedFrameCount);
00419 DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
00420 DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
00421 DEBUGFS_STATS_ADD(multiple_retry_count,
00422 local->dot11MultipleRetryCount);
00423 DEBUGFS_STATS_ADD(frame_duplicate_count,
00424 local->dot11FrameDuplicateCount);
00425 DEBUGFS_STATS_ADD(received_fragment_count,
00426 local->dot11ReceivedFragmentCount);
00427 DEBUGFS_STATS_ADD(multicast_received_frame_count,
00428 local->dot11MulticastReceivedFrameCount);
00429 DEBUGFS_STATS_ADD(transmitted_frame_count,
00430 local->dot11TransmittedFrameCount);
00431 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
00432 DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
00433 DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
00434 DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
00435 local->tx_handlers_drop_unencrypted);
00436 DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
00437 local->tx_handlers_drop_fragment);
00438 DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
00439 local->tx_handlers_drop_wep);
00440 DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
00441 local->tx_handlers_drop_not_assoc);
00442 DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
00443 local->tx_handlers_drop_unauth_port);
00444 DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
00445 DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
00446 DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
00447 local->rx_handlers_drop_nullfunc);
00448 DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
00449 local->rx_handlers_drop_defrag);
00450 DEBUGFS_STATS_ADD(rx_handlers_drop_short,
00451 local->rx_handlers_drop_short);
00452 DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan,
00453 local->rx_handlers_drop_passive_scan);
00454 DEBUGFS_STATS_ADD(tx_expand_skb_head,
00455 local->tx_expand_skb_head);
00456 DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
00457 local->tx_expand_skb_head_cloned);
00458 DEBUGFS_STATS_ADD(rx_expand_skb_head,
00459 local->rx_expand_skb_head);
00460 DEBUGFS_STATS_ADD(rx_expand_skb_head2,
00461 local->rx_expand_skb_head2);
00462 DEBUGFS_STATS_ADD(rx_handlers_fragments,
00463 local->rx_handlers_fragments);
00464 DEBUGFS_STATS_ADD(tx_status_drop,
00465 local->tx_status_drop);
00466 #endif
00467 DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
00468 DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
00469 DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
00470 DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
00471 }