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path: root/drivers/net/wireless/iwlwifi/iwl-debugfs.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-debugfs.c')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-debugfs.c83
1 files changed, 79 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index 20db0eb636a8..d5253a179dec 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -22,7 +22,7 @@
* in the file called LICENSE.GPL.
*
* Contact Information:
- * Tomas Winkler <tomas.winkler@intel.com>
+ * Intel Linux Wireless <ilw@linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
*****************************************************************************/
@@ -58,7 +58,8 @@
#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
dbgfs->dbgfs_##parent##_files.file_##name = \
debugfs_create_bool(#name, 0644, dbgfs->dir_##parent, ptr); \
- if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name)) \
+ if (IS_ERR(dbgfs->dbgfs_##parent##_files.file_##name) \
+ || !dbgfs->dbgfs_##parent##_files.file_##name) \
goto err; \
} while (0)
@@ -228,7 +229,6 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
ssize_t ret;
/* Add 30 for initial string */
const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
- DECLARE_MAC_BUF(mac);
buf = kmalloc(bufsz, GFP_KERNEL);
if (!buf)
@@ -242,7 +242,6 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
if (station->used) {
pos += scnprintf(buf + pos, bufsz - pos,
"station %d:\ngeneral data:\n", i+1);
- print_mac(mac, station->sta.sta.addr);
pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
station->sta.sta.sta_id);
pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
@@ -349,12 +348,86 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file,
return count;
}
+
+
+static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
+ struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_supported_band *supp_band = NULL;
+ int pos = 0, i, bufsz = PAGE_SIZE;
+ char *buf;
+ ssize_t ret;
+
+ if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IWL_ERROR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
+ channels = supp_band->channels;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Displaying %d channels in 2.4GHz band 802.11bg):\n",
+ supp_band->n_channels);
+
+ for (i = 0; i < supp_band->n_channels; i++)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "%d: %ddBm: BSS%s%s, %s.\n",
+ ieee80211_frequency_to_channel(
+ channels[i].center_freq),
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ (!(channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+
+ supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
+ channels = supp_band->channels;
+
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "Displaying %d channels in 5.2GHz band (802.11a)\n",
+ supp_band->n_channels);
+
+ for (i = 0; i < supp_band->n_channels; i++)
+ pos += scnprintf(buf + pos, bufsz - pos,
+ "%d: %ddBm: BSS%s%s, %s.\n",
+ ieee80211_frequency_to_channel(
+ channels[i].center_freq),
+ channels[i].max_power,
+ channels[i].flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
+ || (channels[i].flags &
+ IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].flags &
+ IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+
DEBUGFS_READ_WRITE_FILE_OPS(sram);
DEBUGFS_WRITE_FILE_OPS(log_event);
DEBUGFS_READ_FILE_OPS(eeprom);
DEBUGFS_READ_FILE_OPS(stations);
DEBUGFS_READ_FILE_OPS(rx_statistics);
DEBUGFS_READ_FILE_OPS(tx_statistics);
+DEBUGFS_READ_FILE_OPS(channels);
/*
* Create the debugfs files and directories
@@ -388,6 +461,7 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
DEBUGFS_ADD_FILE(stations, data);
DEBUGFS_ADD_FILE(rx_statistics, data);
DEBUGFS_ADD_FILE(tx_statistics, data);
+ DEBUGFS_ADD_FILE(channels, data);
DEBUGFS_ADD_BOOL(disable_sensitivity, rf, &priv->disable_sens_cal);
DEBUGFS_ADD_BOOL(disable_chain_noise, rf,
&priv->disable_chain_noise_cal);
@@ -416,6 +490,7 @@ void iwl_dbgfs_unregister(struct iwl_priv *priv)
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_sram);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_log_event);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_stations);
+ DEBUGFS_REMOVE(priv->dbgfs->dbgfs_data_files.file_channels);
DEBUGFS_REMOVE(priv->dbgfs->dir_data);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_sensitivity);
DEBUGFS_REMOVE(priv->dbgfs->dbgfs_rf_files.file_disable_chain_noise);