From 5c105d9f3fd086aff195d3849dcf847d6b0bd927 Mon Sep 17 00:00:00 2001 From: blogic Date: Fri, 5 Oct 2012 10:12:53 +0000 Subject: branch Attitude Adjustment git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../files-2.6.30/drivers/ar6000/wlan/wlan_utils.c | 59 ++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 target/linux/s3c24xx/files-2.6.30/drivers/ar6000/wlan/wlan_utils.c (limited to 'target/linux/s3c24xx/files-2.6.30/drivers/ar6000/wlan/wlan_utils.c') diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/wlan/wlan_utils.c b/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/wlan/wlan_utils.c new file mode 100644 index 000000000..fd5aac90e --- /dev/null +++ b/target/linux/s3c24xx/files-2.6.30/drivers/ar6000/wlan/wlan_utils.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2004-2005 Atheros Communications Inc. + * All rights reserved. + * + * This module implements frequently used wlan utilies + * + * $Id: //depot/sw/releases/olca2.0-GPL/host/wlan/src/wlan_utils.c#1 $ + * + * + * 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. + * + * + * + */ + +#include +#include +#include +#include + +/* + * 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; +} -- cgit v1.2.3