Index: chromeos/drivers/ath6kl/wlan/src/wlan_utils.c |
diff --git a/chromeos/drivers/ath6kl/wlan/src/wlan_utils.c b/chromeos/drivers/ath6kl/wlan/src/wlan_utils.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..0d1c24ec1ca6ca5b314345f33b438116bcaa9be6 |
--- /dev/null |
+++ b/chromeos/drivers/ath6kl/wlan/src/wlan_utils.c |
@@ -0,0 +1,57 @@ |
+//------------------------------------------------------------------------------ |
+// <copyright file="wlan_utils.c" company="Atheros"> |
+// Copyright (c) 2004-2008 Atheros Corporation. All rights reserved. |
+// |
+// This program is free software; you can redistribute it and/or modify |
+// it under the terms of the GNU General Public License version 2 as |
+// published by the Free Software Foundation; |
+// |
+// Software distributed under the License is distributed on an "AS |
+// IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
+// implied. See the License for the specific language governing |
+// rights and limitations under the License. |
+// |
+// |
+//------------------------------------------------------------------------------ |
+//============================================================================== |
+// 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; |
+} |