1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/staging/ath6kl/wlan/src/wlan_utils.c b/drivers/staging/ath6kl/wlan/src/wlan_utils.c
new file mode 100644
index 000000000000..1eee7bab3e50
--- /dev/null
+++ b/drivers/staging/ath6kl/wlan/src/wlan_utils.c
@@ -0,0 +1,61 @@
+//------------------------------------------------------------------------------
+// <copyright file="wlan_utils.c" company="Atheros">
+//    Copyright (c) 2004-2010 Atheros Corporation.  All rights reserved.
+// 
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+//
+//
+//------------------------------------------------------------------------------
+//==============================================================================
+// This module implements frequently used wlan utilies
+//
+// Author(s): ="Atheros"
+//==============================================================================
+#include <a_config.h>
+#include <athdefs.h>
+#include <a_types.h>
+#include <a_osapi.h>
+
+/*
+ * converts ieee channel number to frequency
+ */
+A_UINT16
+wlan_ieee2freq(int chan)
+{
+    if (chan == 14) {
+        return 2484;
+    }
+    if (chan < 14) {    /* 0-13 */
+        return (2407 + (chan*5));
+    }
+    if (chan < 27) {    /* 15-26 */
+        return (2512 + ((chan-15)*20));
+    }
+    return (5000 + (chan*5));
+}
+
+/*
+ * Converts MHz frequency to IEEE channel number.
+ */
+A_UINT32
+wlan_freq2ieee(A_UINT16 freq)
+{
+    if (freq == 2484)
+        return 14;
+    if (freq < 2484)
+        return (freq - 2407) / 5;
+    if (freq < 5000)
+        return 15 + ((freq - 2512) / 20);
+    return (freq - 5000) / 5;
+}