return 0;
}
- /*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-
- #ifdef CONFIG_IWLWIFI_DEBUG
-
- /*
- * The following adds a new attribute to the sysfs representation
- * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
- * used for controlling the debug level.
- *
- * See the level definitions in iwl for details.
- *
- * The debug_level being managed using sysfs below is a per device debug
- * level that is used instead of the global debug level if it (the per
- * device debug level) is set.
- */
- static ssize_t show_debug_level(struct device *d,
- struct device_attribute *attr, char *buf)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv));
- }
- static ssize_t store_debug_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long val;
- int ret;
-
- ret = strict_strtoul(buf, 0, &val);
- if (ret)
- IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
- else {
- priv->debug_level = val;
- if (iwl_alloc_traffic_mem(priv))
- IWL_ERR(priv,
- "Not enough memory to generate traffic log\n");
- }
- return strnlen(buf, count);
- }
-
- static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
- show_debug_level, store_debug_level);
-
-
- #endif /* CONFIG_IWLWIFI_DEBUG */
-
-
- static ssize_t show_temperature(struct device *d,
- struct device_attribute *attr, char *buf)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", priv->temperature);
- }
-
- static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
-
- static ssize_t show_tx_power(struct device *d,
- struct device_attribute *attr, char *buf)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_is_ready_rf(priv))
- return sprintf(buf, "off\n");
- else
- return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
- }
-
- static ssize_t store_tx_power(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long val;
- int ret;
-
- ret = strict_strtoul(buf, 10, &val);
- if (ret)
- IWL_INFO(priv, "%s is not in decimal form.\n", buf);
- else {
- ret = iwl_set_tx_power(priv, val, false);
- if (ret)
- IWL_ERR(priv, "failed setting tx power (0x%d).\n",
- ret);
- else
- ret = count;
- }
- return ret;
- }
-
- static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
-
- static ssize_t show_rts_ht_protection(struct device *d,
- struct device_attribute *attr, char *buf)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- return sprintf(buf, "%s\n",
- priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self");
- }
-
- static ssize_t store_rts_ht_protection(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
- {
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long val;
- int ret;
-
- ret = strict_strtoul(buf, 10, &val);
- if (ret)
- IWL_INFO(priv, "Input is not in decimal form.\n");
- else {
- if (!iwl_is_associated(priv))
- priv->cfg->use_rts_for_ht = val ? true : false;
- else
- IWL_ERR(priv, "Sta associated with AP - "
- "Change protection mechanism is not allowed\n");
- ret = count;
- }
- return ret;
- }
-
- static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO,
- show_rts_ht_protection, store_rts_ht_protection);
-
-
+static void iwl_mac_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_channel_switch *ch_switch)
+{
+ struct iwl_priv *priv = hw->priv;
+ const struct iwl_channel_info *ch_info;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct iwl_ht_config *ht_conf = &priv->current_ht_config;
+ u16 ch;
+ unsigned long flags = 0;
+
+ IWL_DEBUG_MAC80211(priv, "enter\n");
+
+ if (iwl_is_rfkill(priv))
+ goto out_exit;
+
+ if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
+ test_bit(STATUS_SCANNING, &priv->status))
+ goto out_exit;
+
+ if (!iwl_is_associated(priv))
+ goto out_exit;
+
+ /* channel switch in progress */
+ if (priv->switch_rxon.switch_in_progress == true)
+ goto out_exit;
+
+ mutex_lock(&priv->mutex);
+ if (priv->cfg->ops->lib->set_channel_switch) {
+
+ ch = ieee80211_frequency_to_channel(
+ ch_switch->channel->center_freq);
+ if (le16_to_cpu(priv->active_rxon.channel) != ch) {
+ ch_info = iwl_get_channel_info(priv,
+ conf->channel->band,
+ ch);
+ if (!is_channel_valid(ch_info)) {
+ IWL_DEBUG_MAC80211(priv, "invalid channel\n");
+ goto out;
+ }
+ spin_lock_irqsave(&priv->lock, flags);
+
+ priv->current_ht_config.smps = conf->smps_mode;
+
+ /* Configure HT40 channels */
+ ht_conf->is_ht = conf_is_ht(conf);
+ if (ht_conf->is_ht) {
+ if (conf_is_ht40_minus(conf)) {
+ ht_conf->extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+ ht_conf->is_40mhz = true;
+ } else if (conf_is_ht40_plus(conf)) {
+ ht_conf->extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+ ht_conf->is_40mhz = true;
+ } else {
+ ht_conf->extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ ht_conf->is_40mhz = false;
+ }
+ } else
+ ht_conf->is_40mhz = false;
+
+ /* if we are switching from ht to 2.4 clear flags
+ * from any ht related info since 2.4 does not
+ * support ht */
+ if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
+ priv->staging_rxon.flags = 0;
+
+ iwl_set_rxon_channel(priv, conf->channel);
+ iwl_set_rxon_ht(priv, ht_conf);
+ iwl_set_flags_for_band(priv, conf->channel->band,
+ priv->vif);
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ iwl_set_rate(priv);
+ /*
+ * at this point, staging_rxon has the
+ * configuration for channel switch
+ */
+ if (priv->cfg->ops->lib->set_channel_switch(priv,
+ ch_switch))
+ priv->switch_rxon.switch_in_progress = false;
+ }
+ }
+out:
+ mutex_unlock(&priv->mutex);
+out_exit:
+ if (!priv->switch_rxon.switch_in_progress)
+ ieee80211_chswitch_done(priv->vif, false);
+ IWL_DEBUG_MAC80211(priv, "leave\n");
+}
+
/*****************************************************************************
*
* driver setup and teardown
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff