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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
commitfcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch)
treea57612d1888735a2ec7972891b68c1ac5ec8faea /drivers/staging/ath6kl/wlan/src/wlan_utils.c
parent8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff)
Added missing tegra files.HEADmaster
Diffstat (limited to 'drivers/staging/ath6kl/wlan/src/wlan_utils.c')
-rw-r--r--drivers/staging/ath6kl/wlan/src/wlan_utils.c58
1 files changed, 58 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 00000000000..bc91599d9bf
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+++ b/drivers/staging/ath6kl/wlan/src/wlan_utils.c
@@ -0,0 +1,58 @@
1//------------------------------------------------------------------------------
2// <copyright file="wlan_utils.c" company="Atheros">
3// Copyright (c) 2004-2010 Atheros Corporation. All rights reserved.
4//
5//
6// Permission to use, copy, modify, and/or distribute this software for any
7// purpose with or without fee is hereby granted, provided that the above
8// copyright notice and this permission notice appear in all copies.
9//
10// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17//
18//
19//------------------------------------------------------------------------------
20//==============================================================================
21// This module implements frequently used wlan utilies
22//
23// Author(s): ="Atheros"
24//==============================================================================
25#include <a_config.h>
26#include <athdefs.h>
27#include <a_osapi.h>
28
29/*
30 * converts ieee channel number to frequency
31 */
32u16 wlan_ieee2freq(int chan)
33{
34 if (chan == 14) {
35 return 2484;
36 }
37 if (chan < 14) { /* 0-13 */
38 return (2407 + (chan*5));
39 }
40 if (chan < 27) { /* 15-26 */
41 return (2512 + ((chan-15)*20));
42 }
43 return (5000 + (chan*5));
44}
45
46/*
47 * Converts MHz frequency to IEEE channel number.
48 */
49u32 wlan_freq2ieee(u16 freq)
50{
51 if (freq == 2484)
52 return 14;
53 if (freq < 2484)
54 return (freq - 2407) / 5;
55 if (freq < 5000)
56 return 15 + ((freq - 2512) / 20);
57 return (freq - 5000) / 5;
58}