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authorGreg Kroah-Hartman <gregkh@suse.de>2010-10-28 09:44:56 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-10-28 09:44:56 -0700
commite4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7 (patch)
treeea51b391f7d74ca695dcb9f5e46eb02688a92ed9 /drivers/staging/ath6kl/wlan/src/wlan_utils.c
parent81280572ca6f54009edfa4deee563e8678784218 (diff)
parenta4ac0d847af9dd34d5953a5e264400326144b6b2 (diff)
downloadop-kernel-dev-e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7.zip
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Merge 'staging-next' to Linus's tree
This merges the staging-next tree to Linus's tree and resolves some conflicts that were present due to changes in other trees that were affected by files here. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/ath6kl/wlan/src/wlan_utils.c')
-rw-r--r--drivers/staging/ath6kl/wlan/src/wlan_utils.c61
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 0000000..1eee7ba
--- /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;
+}
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