ath5k: enable hardware LEDs

Cardbus and some PCI cards use hardware LEDs rather than software GPIOs.
Program them with the proper blink patterns when idle, scanning or
associated.  Fixes http://bugzilla.kernel.org/show_bug.cgi?id=13288.

Tested-by: Frans Pop <elendil@planet.nl>
Tested-by: Mark Hindley <mark@hindley.org.uk>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 23 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index c41ef58393e..9a84d9410b2 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -319,6 +319,9 @@ struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version)
 
         ath5k_hw_rfgain_opt_init(ah);
 
+        /* turn on HW LEDs */
+        ath5k_hw_set_ledstate(ah, AR5K_LED_INIT);
+
         return ah;
 err_free:
         kfree(ah);
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index ea045151f95..f26a6896062 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -248,6 +248,8 @@ static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
                 struct ieee80211_vif *vif,
                 struct ieee80211_bss_conf *bss_conf,
                 u32 changes);
+static void ath5k_sw_scan_start(struct ieee80211_hw *hw);
+static void ath5k_sw_scan_complete(struct ieee80211_hw *hw);
 
 static const struct ieee80211_ops ath5k_hw_ops = {
         .tx             = ath5k_tx,
@@ -265,6 +267,8 @@ static const struct ieee80211_ops ath5k_hw_ops = {
         .set_tsf        = ath5k_set_tsf,
         .reset_tsf      = ath5k_reset_tsf,
         .bss_info_changed = ath5k_bss_info_changed,
+        .sw_scan_start  = ath5k_sw_scan_start,
+        .sw_scan_complete = ath5k_sw_scan_complete,
 };
 
 /*
@@ -3167,6 +3171,8 @@ static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
                 sc->assoc = bss_conf->assoc;
                 if (sc->opmode == NL80211_IFTYPE_STATION)
                         set_beacon_filter(hw, sc->assoc);
+                ath5k_hw_set_ledstate(sc->ah, sc->assoc ?
+                        AR5K_LED_ASSOC : AR5K_LED_INIT);
         }
 
         if (changes & BSS_CHANGED_BEACON &&
@@ -3179,3 +3185,17 @@ static void ath5k_bss_info_changed(struct ieee80211_hw *hw,
  unlock:
         mutex_unlock(&sc->lock);
 }
+
+static void ath5k_sw_scan_start(struct ieee80211_hw *hw)
+{
+        struct ath5k_softc *sc = hw->priv;
+        if (!sc->assoc)
+                ath5k_hw_set_ledstate(sc->ah, AR5K_LED_SCAN);
+}
+
+static void ath5k_sw_scan_complete(struct ieee80211_hw *hw)
+{
+        struct ath5k_softc *sc = hw->priv;
+        ath5k_hw_set_ledstate(sc->ah, sc->assoc ?
+                AR5K_LED_ASSOC : AR5K_LED_INIT);
+}