iwlwifi: Add led support

This patch add LEDS support to 3965 and 4965 drivers. It is based on
led trigger and class. For our drivers we needed to avoid two things.
1- We receive led trigger on/off on each Rx\Tx frame. In our driver
    we can not call led command like that. In this driver once driver
    receive a start of traffic it call the led command to start blinking
    then we count all bytes of Tx and Rx frame, after two second we count the
    blink rate of last two second then id blink rate changed we call the led
     commands
2- Since we can call led command very often, we make sure we call the
    led command after we receive the statistics notification so
    we don't need to wake up the ucode id it is in sleep state.
    This patch was tested with 4965 and 3945.

Signed-off-by: Mohamed Abbas <mabbas@linux.intel.com>
Signed-off-by: Ian Schram<ischram@telenet.be>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 4ba959153cb1..470a9abf12c3 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -2481,8 +2481,12 @@ static void iwl3945_build_tx_cmd_basic(struct iwl3945_priv *priv,
                         cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(3);
                 else
                         cmd->cmd.tx.timeout.pm_frame_timeout = cpu_to_le16(2);
-        } else
+        } else {
                 cmd->cmd.tx.timeout.pm_frame_timeout = 0;
+#ifdef CONFIG_IWL3945_LEDS
+                priv->rxtxpackets += le16_to_cpu(cmd->cmd.tx.len);
+#endif
+        }
 
         cmd->cmd.tx.driver_txop = 0;
         cmd->cmd.tx.tx_flags = tx_flags;
@@ -5855,6 +5859,8 @@ static void iwl3945_alive_start(struct iwl3945_priv *priv)
         IWL_DEBUG_INFO("ALIVE processing complete.\n");
         wake_up_interruptible(&priv->wait_command_queue);
 
+        iwl3945_led_register(priv);
+
         if (priv->error_recovering)
                 iwl3945_error_recovery(priv);
 
@@ -5879,6 +5885,7 @@ static void __iwl3945_down(struct iwl3945_priv *priv)
         if (!exit_pending)
                 set_bit(STATUS_EXIT_PENDING, &priv->status);
 
+        iwl3945_led_unregister(priv);
         iwl3945_clear_stations_table(priv);
 
         /* Unblock any waiting calls */