2 Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 Abstract: rt2x00 generic configuration routines.
26 #include <linux/kernel.h>
27 #include <linux/module.h>
30 #include "rt2x00lib.h"
32 void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
33 struct rt2x00_intf *intf,
34 enum nl80211_iftype type,
37 struct rt2x00intf_conf conf;
38 unsigned int flags = 0;
43 case NL80211_IFTYPE_ADHOC:
44 case NL80211_IFTYPE_AP:
45 conf.sync = TSF_SYNC_BEACON;
47 case NL80211_IFTYPE_STATION:
48 conf.sync = TSF_SYNC_INFRA;
51 conf.sync = TSF_SYNC_NONE;
56 * Note that when NULL is passed as address we will send
57 * 00:00:00:00:00 to the device to clear the address.
58 * This will prevent the device being confused when it wants
59 * to ACK frames or consideres itself associated.
61 memset(&conf.mac, 0, sizeof(conf.mac));
63 memcpy(&conf.mac, mac, ETH_ALEN);
65 memset(&conf.bssid, 0, sizeof(conf.bssid));
67 memcpy(&conf.bssid, bssid, ETH_ALEN);
69 flags |= CONFIG_UPDATE_TYPE;
70 if (mac || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count))
71 flags |= CONFIG_UPDATE_MAC;
72 if (bssid || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count))
73 flags |= CONFIG_UPDATE_BSSID;
75 rt2x00dev->ops->lib->config_intf(rt2x00dev, intf, &conf, flags);
78 void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
79 struct rt2x00_intf *intf,
80 struct ieee80211_bss_conf *bss_conf)
82 struct rt2x00lib_erp erp;
84 memset(&erp, 0, sizeof(erp));
86 erp.short_preamble = bss_conf->use_short_preamble;
87 erp.cts_protection = bss_conf->use_cts_prot;
89 erp.slot_time = bss_conf->use_short_slot ? SHORT_SLOT_TIME : SLOT_TIME;
91 erp.pifs = bss_conf->use_short_slot ? SHORT_PIFS : PIFS;
92 erp.difs = bss_conf->use_short_slot ? SHORT_DIFS : DIFS;
93 erp.eifs = bss_conf->use_short_slot ? SHORT_EIFS : EIFS;
95 erp.ack_timeout = PLCP + erp.difs + get_duration(ACK_SIZE, 10);
96 erp.ack_consume_time = SIFS + PLCP + get_duration(ACK_SIZE, 10);
98 if (bss_conf->use_short_preamble) {
99 erp.ack_timeout += SHORT_PREAMBLE;
100 erp.ack_consume_time += SHORT_PREAMBLE;
102 erp.ack_timeout += PREAMBLE;
103 erp.ack_consume_time += PREAMBLE;
106 erp.basic_rates = bss_conf->basic_rates;
108 rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp);
111 void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
112 enum antenna rx, enum antenna tx)
114 struct antenna_setup ant;
119 if (rx == rt2x00dev->link.ant.active.rx &&
120 tx == rt2x00dev->link.ant.active.tx)
124 * Antenna setup changes require the RX to be disabled,
125 * else the changes will be ignored by the device.
127 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
128 rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
131 * Write new antenna setup to device and reset the link tuner.
132 * The latter is required since we need to recalibrate the
133 * noise-sensitivity ratio for the new setup.
135 rt2x00dev->ops->lib->config_ant(rt2x00dev, &ant);
137 rt2x00lib_reset_link_tuner(rt2x00dev);
138 rt2x00_reset_link_ant_rssi(&rt2x00dev->link);
140 memcpy(&rt2x00dev->link.ant.active, &ant, sizeof(ant));
142 if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
143 rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
146 void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
147 struct ieee80211_conf *conf,
148 unsigned int ieee80211_flags)
150 struct rt2x00lib_conf libconf;
152 memset(&libconf, 0, sizeof(libconf));
156 if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) {
158 &rt2x00dev->spec.channels[conf->channel->hw_value],
161 memcpy(&libconf.channel,
162 &rt2x00dev->spec.channels_info[conf->channel->hw_value],
163 sizeof(libconf.channel));
167 * Start configuration.
169 rt2x00dev->ops->lib->config(rt2x00dev, &libconf, ieee80211_flags);
172 * Some configuration changes affect the link quality
173 * which means we need to reset the link tuner.
175 if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL)
176 rt2x00lib_reset_link_tuner(rt2x00dev);
178 rt2x00dev->curr_band = conf->channel->band;
179 rt2x00dev->tx_power = conf->power_level;
181 rt2x00dev->rx_status.band = conf->channel->band;
182 rt2x00dev->rx_status.freq = conf->channel->center_freq;