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author | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-28 09:44:56 -0700 |
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committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-28 09:44:56 -0700 |
commit | e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7 (patch) | |
tree | ea51b391f7d74ca695dcb9f5e46eb02688a92ed9 /drivers/staging/ath6kl/wlan/src/wlan_utils.c | |
parent | 81280572ca6f54009edfa4deee563e8678784218 (diff) | |
parent | a4ac0d847af9dd34d5953a5e264400326144b6b2 (diff) | |
download | kernel_samsung_smdk4412-e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7.zip kernel_samsung_smdk4412-e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7.tar.gz kernel_samsung_smdk4412-e4c5bf8e3dca827a1b3a6fac494eae8c74b7e1e7.tar.bz2 |
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.c | 61 |
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; +} |