diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /drivers/staging/ath6kl/wlan/src/wlan_utils.c | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'drivers/staging/ath6kl/wlan/src/wlan_utils.c')
-rw-r--r-- | drivers/staging/ath6kl/wlan/src/wlan_utils.c | 58 |
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 --- /dev/null +++ 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 | */ | ||
32 | u16 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 | */ | ||
49 | u32 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 | } | ||