[PATCH 21/25] iwlwifi : Set monitor mode for 3945

Zhu Yi
2008-05-05T02:24:29Z

From: Abhijeet Kolekar <abhijeet.kolekar@intel.com>

The patch leverages mac80211 configure_filter to enable iwl3945
monitor mode.

Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
---
drivers/net/wireless/iwlwifi/iwl-3945.h | 1 +
drivers/net/wireless/iwlwifi/iwl3945-base.c | 36 ++++++++++++++++++++++++++-
2 files changed, 36 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index fb96c62..9fdc140 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -886,6 +886,7 @@ struct iwl3945_priv {
struct work_struct report_work;
struct work_struct request_scan;
struct work_struct beacon_update;
+ struct work_struct set_monitor;

struct tasklet_struct irq_tasklet;

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 7040cde..f021eba 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -6144,6 +6144,24 @@ static void iwl3945_bg_rf_kill(struct work_struct *work)
mutex_unlock(&priv->mutex);
}

+static void iwl3945_bg_set_monitor(struct work_struct *work)
+{
+ struct iwl3945_priv *priv = container_of(work,
+ struct iwl3945_priv, set_monitor);
+
+ IWL_DEBUG(IWL_DL_STATE, "setting monitor mode\n");
+
+ mutex_lock(&priv->mutex);
+
+ if (!iwl3945_is_ready(priv))
+ IWL_DEBUG(IWL_DL_STATE, "leave - not ready\n");
+ else
+ if (iwl3945_set_mode(priv, IEEE80211_IF_TYPE_MNTR) != 0)
+ IWL_ERROR("iwl3945_set_mode() failed\n");
+
+ mutex_unlock(&priv->mutex);
+}
+
#define IWL_SCAN_CHECK_WATCHDOG (7 * HZ)

static void iwl3945_bg_scan_check(struct work_struct *data)
@@ -6996,7 +7014,22 @@ static void iwl3945_configure_filter(struct ieee80211_hw *hw,
* XXX: dummy
* see also iwl3945_connection_init_rx_config
*/
- *total_flags = 0;
+ struct iwl3945_priv *priv = hw->priv;
+ int new_flags = 0;
+ if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
+ if (*total_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) {
+ IWL_DEBUG_MAC80211("Enter: type %d (0x%x, 0x%x)\n",
+ IEEE80211_IF_TYPE_MNTR,
+ changed_flags, *total_flags);
+ /* queue work 'cuz mac80211 is holding a lock which
+ * prevents us from issuing (synchronous) f/w cmds */
+ queue_work(priv->workqueue, &priv->set_monitor);
+ new_flags &= FIF_PROMISC_IN_BSS |
+ FIF_OTHER_BSS |
+ FIF_ALLMULTI;
+ }
+ }
+ *total_flags = new_flags;
}

static void iwl3945_mac_remove_interface(struct ieee80211_hw *hw,
@@ -7872,6 +7905,7 @@ static void iwl3945_setup_deferred_work(struct iwl3945_priv *priv)
INIT_WORK(&priv->abort_scan, iwl3945_bg_abort_scan);
INIT_WORK(&priv->rf_kill, iwl3945_bg_rf_kill);
INIT_WORK(&priv->beacon_update, iwl3945_bg_beacon_update);
+ INIT_WORK(&priv->set_monitor, iwl3945_bg_set_monitor);
INIT_DELAYED_WORK(&priv->post_associate, iwl3945_bg_post_associate);
INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
--
1.5.3.6