forked from Minki/linux
040e539e8e
Use key management functions which have been moved to ath/key.c and remove ath9k copies of these functions and other now unused definitions. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
206 lines
4.8 KiB
C
206 lines
4.8 KiB
C
/*
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* Copyright (c) 2009 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* Module for common driver code between ath9k and ath9k_htc
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include "common.h"
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MODULE_AUTHOR("Atheros Communications");
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MODULE_DESCRIPTION("Shared library for Atheros wireless 802.11n LAN cards.");
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MODULE_LICENSE("Dual BSD/GPL");
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int ath9k_cmn_padpos(__le16 frame_control)
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{
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int padpos = 24;
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if (ieee80211_has_a4(frame_control)) {
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padpos += ETH_ALEN;
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}
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if (ieee80211_is_data_qos(frame_control)) {
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padpos += IEEE80211_QOS_CTL_LEN;
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}
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return padpos;
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}
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EXPORT_SYMBOL(ath9k_cmn_padpos);
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int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb)
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{
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struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
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if (tx_info->control.hw_key) {
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switch (tx_info->control.hw_key->cipher) {
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case WLAN_CIPHER_SUITE_WEP40:
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case WLAN_CIPHER_SUITE_WEP104:
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return ATH9K_KEY_TYPE_WEP;
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case WLAN_CIPHER_SUITE_TKIP:
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return ATH9K_KEY_TYPE_TKIP;
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case WLAN_CIPHER_SUITE_CCMP:
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return ATH9K_KEY_TYPE_AES;
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default:
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break;
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}
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}
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return ATH9K_KEY_TYPE_CLEAR;
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}
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EXPORT_SYMBOL(ath9k_cmn_get_hw_crypto_keytype);
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static u32 ath9k_get_extchanmode(struct ieee80211_channel *chan,
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enum nl80211_channel_type channel_type)
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{
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u32 chanmode = 0;
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switch (chan->band) {
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case IEEE80211_BAND_2GHZ:
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switch (channel_type) {
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case NL80211_CHAN_NO_HT:
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case NL80211_CHAN_HT20:
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chanmode = CHANNEL_G_HT20;
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break;
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case NL80211_CHAN_HT40PLUS:
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chanmode = CHANNEL_G_HT40PLUS;
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break;
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case NL80211_CHAN_HT40MINUS:
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chanmode = CHANNEL_G_HT40MINUS;
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break;
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}
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break;
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case IEEE80211_BAND_5GHZ:
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switch (channel_type) {
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case NL80211_CHAN_NO_HT:
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case NL80211_CHAN_HT20:
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chanmode = CHANNEL_A_HT20;
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break;
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case NL80211_CHAN_HT40PLUS:
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chanmode = CHANNEL_A_HT40PLUS;
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break;
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case NL80211_CHAN_HT40MINUS:
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chanmode = CHANNEL_A_HT40MINUS;
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break;
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}
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break;
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default:
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break;
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}
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return chanmode;
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}
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/*
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* Update internal channel flags.
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*/
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void ath9k_cmn_update_ichannel(struct ieee80211_hw *hw,
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struct ath9k_channel *ichan)
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{
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struct ieee80211_channel *chan = hw->conf.channel;
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struct ieee80211_conf *conf = &hw->conf;
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ichan->channel = chan->center_freq;
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ichan->chan = chan;
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if (chan->band == IEEE80211_BAND_2GHZ) {
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ichan->chanmode = CHANNEL_G;
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ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM | CHANNEL_G;
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} else {
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ichan->chanmode = CHANNEL_A;
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ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
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}
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if (conf_is_ht(conf))
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ichan->chanmode = ath9k_get_extchanmode(chan,
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conf->channel_type);
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}
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EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
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/*
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* Get the internal channel reference.
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*/
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struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
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struct ath_hw *ah)
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{
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struct ieee80211_channel *curchan = hw->conf.channel;
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struct ath9k_channel *channel;
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u8 chan_idx;
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chan_idx = curchan->hw_value;
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channel = &ah->channels[chan_idx];
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ath9k_cmn_update_ichannel(hw, channel);
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return channel;
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}
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EXPORT_SYMBOL(ath9k_cmn_get_curchannel);
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int ath9k_cmn_count_streams(unsigned int chainmask, int max)
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{
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int streams = 0;
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do {
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if (++streams == max)
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break;
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} while ((chainmask = chainmask & (chainmask - 1)));
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return streams;
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}
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EXPORT_SYMBOL(ath9k_cmn_count_streams);
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/*
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* Configures appropriate weight based on stomp type.
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*/
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void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
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enum ath_stomp_type stomp_type)
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{
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struct ath_hw *ah = common->ah;
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switch (stomp_type) {
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case ATH_BTCOEX_STOMP_ALL:
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ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
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AR_STOMP_ALL_WLAN_WGHT);
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break;
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case ATH_BTCOEX_STOMP_LOW:
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ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
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AR_STOMP_LOW_WLAN_WGHT);
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break;
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case ATH_BTCOEX_STOMP_NONE:
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ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
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AR_STOMP_NONE_WLAN_WGHT);
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break;
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default:
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ath_print(common, ATH_DBG_BTCOEX,
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"Invalid Stomptype\n");
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break;
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}
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ath9k_hw_btcoex_enable(ah);
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}
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EXPORT_SYMBOL(ath9k_cmn_btcoex_bt_stomp);
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static int __init ath9k_cmn_init(void)
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{
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return 0;
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}
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module_init(ath9k_cmn_init);
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static void __exit ath9k_cmn_exit(void)
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{
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return;
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}
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module_exit(ath9k_cmn_exit);
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