rt2x00: Disable link tuning in rt2500usb

[safe/jmp/linux-2.6] / drivers / net / wireless / rt2x00 / rt2500usb.c

diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index c6f6eb6..cd5af65 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -633,6 +633,16 @@ static void rt2500usb_reset_tuner(struct rt2x00_dev *rt2x00dev)
        rt2x00dev->link.vgc_level = value;
 }
 
+/*
+ * NOTE: This function is directly ported from legacy driver, but
+ * despite it being declared it was never called. Although link tuning
+ * sounds like a good idea, and usually works well for the other drivers,
+ * it does _not_ work with rt2500usb. Enabling this function will result
+ * in TX capabilities only until association kicks in. Immediately
+ * after the successful association all TX frames will be kept in the
+ * hardware queue and never transmitted.
+ */
+#if 0
 static void rt2500usb_link_tuner(struct rt2x00_dev *rt2x00dev)
 {
        int rssi = rt2x00_get_link_rssi(&rt2x00dev->link);
@@ -752,6 +762,9 @@ dynamic_cca_tune:
                rt2x00dev->link.vgc_level = r17;
        }
 }
+#else
+#define rt2500usb_link_tuner   NULL
+#endif
 
 /*
  * Initialization functions.
@@ -1737,6 +1750,7 @@ static int rt2500usb_probe_hw(struct rt2x00_dev *rt2x00dev)
        __set_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags);
        __set_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags);
        __set_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags);
+       __set_bit(CONFIG_DISABLE_LINK_TUNING, &rt2x00dev->flags);
 
        /*
         * Set the rssi offset.