[deliverable/linux.git] / drivers / net / wireless / rt2x00 / rt2x00config.c

/*
	Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
	<http://rt2x00.serialmonkey.com>

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to the
	Free Software Foundation, Inc.,
	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*
	Module: rt2x00lib
	Abstract: rt2x00 generic configuration routines.
 */

#include <linux/kernel.h>
#include <linux/module.h>

#include "rt2x00.h"
#include "rt2x00lib.h"

void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
			   struct rt2x00_intf *intf,
			   enum ieee80211_if_types type,
			   u8 *mac, u8 *bssid)
{
	struct rt2x00intf_conf conf;
	unsigned int flags = 0;

	conf.type = type;

	switch (type) {
	case IEEE80211_IF_TYPE_IBSS:
	case IEEE80211_IF_TYPE_AP:
		conf.sync = TSF_SYNC_BEACON;
		break;
	case IEEE80211_IF_TYPE_STA:
		conf.sync = TSF_SYNC_INFRA;
		break;
	default:
		conf.sync = TSF_SYNC_NONE;
		break;
	}

	/*
	 * Note that when NULL is passed as address we will send
	 * 00:00:00:00:00 to the device to clear the address.
	 * This will prevent the device being confused when it wants
	 * to ACK frames or consideres itself associated.
	 */
	memset(&conf.mac, 0, sizeof(conf.mac));
	if (mac)
		memcpy(&conf.mac, mac, ETH_ALEN);

	memset(&conf.bssid, 0, sizeof(conf.bssid));
	if (bssid)
		memcpy(&conf.bssid, bssid, ETH_ALEN);

	flags |= CONFIG_UPDATE_TYPE;
	if (mac || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count))
		flags |= CONFIG_UPDATE_MAC;
	if (bssid || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count))
		flags |= CONFIG_UPDATE_BSSID;

	rt2x00dev->ops->lib->config_intf(rt2x00dev, intf, &conf, flags);
}

void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
			  struct rt2x00_intf *intf,
			  struct ieee80211_bss_conf *bss_conf)
{
	struct rt2x00lib_erp erp;

	memset(&erp, 0, sizeof(erp));

	erp.short_preamble = bss_conf->use_short_preamble;
	erp.cts_protection = bss_conf->use_cts_prot;

	erp.ack_timeout = PLCP + get_duration(ACK_SIZE, 10);
	erp.ack_consume_time = SIFS + PLCP + get_duration(ACK_SIZE, 10);

	if (rt2x00dev->hw->conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME)
		erp.ack_timeout += SHORT_DIFS;
	else
		erp.ack_timeout += DIFS;

	if (bss_conf->use_short_preamble) {
		erp.ack_timeout += SHORT_PREAMBLE;
		erp.ack_consume_time += SHORT_PREAMBLE;
	} else {
		erp.ack_timeout += PREAMBLE;
		erp.ack_consume_time += PREAMBLE;
	}

	rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp);
}

void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
			      enum antenna rx, enum antenna tx)
{
	struct rt2x00lib_conf libconf;

	libconf.ant.rx = rx;
	libconf.ant.tx = tx;

	if (rx == rt2x00dev->link.ant.active.rx &&
	    tx == rt2x00dev->link.ant.active.tx)
		return;

	/*
	 * Antenna setup changes require the RX to be disabled,
	 * else the changes will be ignored by the device.
	 */
	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);

	/*
	 * Write new antenna setup to device and reset the link tuner.
	 * The latter is required since we need to recalibrate the
	 * noise-sensitivity ratio for the new setup.
	 */
	rt2x00dev->ops->lib->config(rt2x00dev, &libconf, CONFIG_UPDATE_ANTENNA);
	rt2x00lib_reset_link_tuner(rt2x00dev);
	rt2x00_reset_link_ant_rssi(&rt2x00dev->link);

	rt2x00dev->link.ant.active.rx = libconf.ant.rx;
	rt2x00dev->link.ant.active.tx = libconf.ant.tx;

	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
}

static u32 rt2x00lib_get_basic_rates(struct ieee80211_supported_band *band)
{
	const struct rt2x00_rate *rate;
	unsigned int i;
	u32 mask = 0;

	for (i = 0; i < band->n_bitrates; i++) {
		rate = rt2x00_get_rate(band->bitrates[i].hw_value);
		if (rate->flags & DEV_RATE_BASIC)
			mask |= rate->ratemask;
	}

	return mask;
}

void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
		      struct ieee80211_conf *conf, const int force_config)
{
	struct rt2x00lib_conf libconf;
	struct ieee80211_supported_band *band;
	struct antenna_setup *default_ant = &rt2x00dev->default_ant;
	struct antenna_setup *active_ant = &rt2x00dev->link.ant.active;
	int flags = 0;
	int short_slot_time;

	/*
	 * In some situations we want to force all configurations
	 * to be reloaded (When resuming for instance).
	 */
	if (force_config) {
		flags = CONFIG_UPDATE_ALL;
		goto config;
	}

	/*
	 * Check which configuration options have been
	 * updated and should be send to the device.
	 */
	if (rt2x00dev->rx_status.band != conf->channel->band)
		flags |= CONFIG_UPDATE_PHYMODE;
	if (rt2x00dev->rx_status.freq != conf->channel->center_freq)
		flags |= CONFIG_UPDATE_CHANNEL;
	if (rt2x00dev->tx_power != conf->power_level)
		flags |= CONFIG_UPDATE_TXPOWER;

	/*
	 * Determining changes in the antenna setups request several checks:
	 * antenna_sel_{r,t}x = 0
	 *    -> Does active_{r,t}x match default_{r,t}x
	 *    -> Is default_{r,t}x SW_DIVERSITY
	 * antenna_sel_{r,t}x = 1/2
	 *    -> Does active_{r,t}x match antenna_sel_{r,t}x
	 * The reason for not updating the antenna while SW diversity
	 * should be used is simple: Software diversity means that
	 * we should switch between the antenna's based on the
	 * quality. This means that the current antenna is good enough
	 * to work with untill the link tuner decides that an antenna
	 * switch should be performed.
	 */
	if (!conf->antenna_sel_rx &&
	    default_ant->rx != ANTENNA_SW_DIVERSITY &&
	    default_ant->rx != active_ant->rx)
		flags |= CONFIG_UPDATE_ANTENNA;
	else if (conf->antenna_sel_rx &&
		 conf->antenna_sel_rx != active_ant->rx)
		flags |= CONFIG_UPDATE_ANTENNA;
	else if (active_ant->rx == ANTENNA_SW_DIVERSITY)
		flags |= CONFIG_UPDATE_ANTENNA;

	if (!conf->antenna_sel_tx &&
	    default_ant->tx != ANTENNA_SW_DIVERSITY &&
	    default_ant->tx != active_ant->tx)
		flags |= CONFIG_UPDATE_ANTENNA;
	else if (conf->antenna_sel_tx &&
		 conf->antenna_sel_tx != active_ant->tx)
		flags |= CONFIG_UPDATE_ANTENNA;
	else if (active_ant->tx == ANTENNA_SW_DIVERSITY)
		flags |= CONFIG_UPDATE_ANTENNA;

	/*
	 * The following configuration options are never
	 * stored anywhere and will always be updated.
	 */
	flags |= CONFIG_UPDATE_SLOT_TIME;
	flags |= CONFIG_UPDATE_BEACON_INT;

	/*
	 * We have determined what options should be updated,
	 * now precalculate device configuration values depending
	 * on what configuration options need to be updated.
	 */
config:
	memset(&libconf, 0, sizeof(libconf));

	if (flags & CONFIG_UPDATE_PHYMODE) {
		band = &rt2x00dev->bands[conf->channel->band];

		libconf.band = conf->channel->band;
		libconf.basic_rates = rt2x00lib_get_basic_rates(band);
	}

	if (flags & CONFIG_UPDATE_CHANNEL) {
		memcpy(&libconf.rf,
		       &rt2x00dev->spec.channels[conf->channel->hw_value],
		       sizeof(libconf.rf));
	}

	if (flags & CONFIG_UPDATE_ANTENNA) {
		if (conf->antenna_sel_rx)
			libconf.ant.rx = conf->antenna_sel_rx;
		else if (default_ant->rx != ANTENNA_SW_DIVERSITY)
			libconf.ant.rx = default_ant->rx;
		else if (active_ant->rx == ANTENNA_SW_DIVERSITY)
			libconf.ant.rx = ANTENNA_B;
		else
			libconf.ant.rx = active_ant->rx;

		if (conf->antenna_sel_tx)
			libconf.ant.tx = conf->antenna_sel_tx;
		else if (default_ant->tx != ANTENNA_SW_DIVERSITY)
			libconf.ant.tx = default_ant->tx;
		else if (active_ant->tx == ANTENNA_SW_DIVERSITY)
			libconf.ant.tx = ANTENNA_B;
		else
			libconf.ant.tx = active_ant->tx;
	}

	if (flags & CONFIG_UPDATE_SLOT_TIME) {
		short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME;

		libconf.slot_time =
		    short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
		libconf.sifs = SIFS;
		libconf.pifs = short_slot_time ? SHORT_PIFS : PIFS;
		libconf.difs = short_slot_time ? SHORT_DIFS : DIFS;
		libconf.eifs = short_slot_time ? SHORT_EIFS : EIFS;
	}

	libconf.conf = conf;

	/*
	 * Start configuration.
	 */
	rt2x00dev->ops->lib->config(rt2x00dev, &libconf, flags);

	/*
	 * Some configuration changes affect the link quality
	 * which means we need to reset the link tuner.
	 */
	if (flags & (CONFIG_UPDATE_CHANNEL | CONFIG_UPDATE_ANTENNA))
		rt2x00lib_reset_link_tuner(rt2x00dev);

	if (flags & CONFIG_UPDATE_PHYMODE) {
		rt2x00dev->curr_band = conf->channel->band;
		rt2x00dev->rx_status.band = conf->channel->band;
	}

	rt2x00dev->rx_status.freq = conf->channel->center_freq;
	rt2x00dev->tx_power = conf->power_level;

	if (flags & CONFIG_UPDATE_ANTENNA) {
		rt2x00dev->link.ant.active.rx = libconf.ant.rx;
		rt2x00dev->link.ant.active.tx = libconf.ant.tx;
	}
}
Commit	Line	Data
95ea3627	1	/*
811aa9ca	2	Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
95ea3627 ID	3	<http://rt2x00.serialmonkey.com>
	4
	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.
	9
	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.
	14
	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.
	19	*/
	20
	21	/*
	22	Module: rt2x00lib
	23	Abstract: rt2x00 generic configuration routines.
	24	*/
	25
95ea3627 ID	26	#include <linux/kernel.h>
	27	#include <linux/module.h>
	28
	29	#include "rt2x00.h"
	30	#include "rt2x00lib.h"
	31
6bb40dd1 ID	32	void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
	33	struct rt2x00_intf *intf,
	34	enum ieee80211_if_types type,
	35	u8 mac, u8 bssid)
95ea3627	36	{
6bb40dd1 ID	37	struct rt2x00intf_conf conf;
6bb40dd1 ID	38	unsigned int flags = 0;
95ea3627	39
6bb40dd1	40	conf.type = type;
feb24691 ID	41
	42	switch (type) {
	43	case IEEE80211_IF_TYPE_IBSS:
	44	case IEEE80211_IF_TYPE_AP:
6bb40dd1	45	conf.sync = TSF_SYNC_BEACON;
feb24691 ID	46	break;
feb24691 ID	47	case IEEE80211_IF_TYPE_STA:
6bb40dd1	48	conf.sync = TSF_SYNC_INFRA;
feb24691 ID	49	break;
feb24691 ID	50	default:
6bb40dd1	51	conf.sync = TSF_SYNC_NONE;
feb24691 ID	52	break;
	53	}
	54
6bb40dd1 ID	55	/*
	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.
	60	*/
	61	memset(&conf.mac, 0, sizeof(conf.mac));
	62	if (mac)
	63	memcpy(&conf.mac, mac, ETH_ALEN);
	64
	65	memset(&conf.bssid, 0, sizeof(conf.bssid));
	66	if (bssid)
	67	memcpy(&conf.bssid, bssid, ETH_ALEN);
	68
	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;
	74
	75	rt2x00dev->ops->lib->config_intf(rt2x00dev, intf, &conf, flags);
	76	}
	77
72810379 ID	78	void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
	79	struct rt2x00_intf *intf,
	80	struct ieee80211_bss_conf *bss_conf)
6bb40dd1	81	{
72810379	82	struct rt2x00lib_erp erp;
6bb40dd1	83
72810379 ID	84	memset(&erp, 0, sizeof(erp));
	85
	86	erp.short_preamble = bss_conf->use_short_preamble;
e360c4cb ID	87	erp.cts_protection = bss_conf->use_cts_prot;
e360c4cb ID	88
72810379 ID	89	erp.ack_timeout = PLCP + get_duration(ACK_SIZE, 10);
72810379 ID	90	erp.ack_consume_time = SIFS + PLCP + get_duration(ACK_SIZE, 10);
6bb40dd1 ID	91
6bb40dd1 ID	92	if (rt2x00dev->hw->conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME)
72810379	93	erp.ack_timeout += SHORT_DIFS;
6bb40dd1	94	else
72810379	95	erp.ack_timeout += DIFS;
6bb40dd1	96
72810379 ID	97	if (bss_conf->use_short_preamble) {
	98	erp.ack_timeout += SHORT_PREAMBLE;
	99	erp.ack_consume_time += SHORT_PREAMBLE;
6bb40dd1	100	} else {
72810379 ID	101	erp.ack_timeout += PREAMBLE;
72810379 ID	102	erp.ack_consume_time += PREAMBLE;
6bb40dd1 ID	103	}
6bb40dd1 ID	104
3a643d24	105	rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp);
95ea3627 ID	106	}
95ea3627 ID	107
69f81a2c ID	108	void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
	109	enum antenna rx, enum antenna tx)
	110	{
	111	struct rt2x00lib_conf libconf;
	112
	113	libconf.ant.rx = rx;
	114	libconf.ant.tx = tx;
	115
05253c93 ID	116	if (rx == rt2x00dev->link.ant.active.rx &&
	117	tx == rt2x00dev->link.ant.active.tx)
	118	return;
	119
e25c4bb9 ID	120	/*
	121	* Antenna setup changes require the RX to be disabled,
	122	* else the changes will be ignored by the device.
	123	*/
	124	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
61667d8d	125	rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
e25c4bb9	126
69f81a2c ID	127	/*
	128	* Write new antenna setup to device and reset the link tuner.
	129	* The latter is required since we need to recalibrate the
	130	* noise-sensitivity ratio for the new setup.
	131	*/
6bb40dd1	132	rt2x00dev->ops->lib->config(rt2x00dev, &libconf, CONFIG_UPDATE_ANTENNA);
69f81a2c	133	rt2x00lib_reset_link_tuner(rt2x00dev);
f06a0f48	134	rt2x00_reset_link_ant_rssi(&rt2x00dev->link);
69f81a2c ID	135
	136	rt2x00dev->link.ant.active.rx = libconf.ant.rx;
	137	rt2x00dev->link.ant.active.tx = libconf.ant.tx;
e25c4bb9 ID	138
e25c4bb9 ID	139	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
61667d8d	140	rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
69f81a2c ID	141	}
69f81a2c ID	142
aa776721 ID	143	static u32 rt2x00lib_get_basic_rates(struct ieee80211_supported_band *band)
	144	{
	145	const struct rt2x00_rate *rate;
	146	unsigned int i;
	147	u32 mask = 0;
	148
	149	for (i = 0; i < band->n_bitrates; i++) {
	150	rate = rt2x00_get_rate(band->bitrates[i].hw_value);
	151	if (rate->flags & DEV_RATE_BASIC)
	152	mask \|= rate->ratemask;
	153	}
	154
	155	return mask;
	156	}
	157
066cb637 ID	158	void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
066cb637 ID	159	struct ieee80211_conf *conf, const int force_config)
95ea3627	160	{
5c58ee51	161	struct rt2x00lib_conf libconf;
8318d78a	162	struct ieee80211_supported_band *band;
addc81bd	163	struct antenna_setup *default_ant = &rt2x00dev->default_ant;
69f81a2c	164	struct antenna_setup *active_ant = &rt2x00dev->link.ant.active;
95ea3627	165	int flags = 0;
5c58ee51	166	int short_slot_time;
95ea3627 ID	167
95ea3627 ID	168	/*
066cb637 ID	169	* In some situations we want to force all configurations
066cb637 ID	170	* to be reloaded (When resuming for instance).
95ea3627	171	*/
066cb637	172	if (force_config) {
95ea3627 ID	173	flags = CONFIG_UPDATE_ALL;
	174	goto config;
	175	}
	176
	177	/*
	178	* Check which configuration options have been
	179	* updated and should be send to the device.
	180	*/
8318d78a	181	if (rt2x00dev->rx_status.band != conf->channel->band)
95ea3627	182	flags \|= CONFIG_UPDATE_PHYMODE;
8318d78a	183	if (rt2x00dev->rx_status.freq != conf->channel->center_freq)
95ea3627 ID	184	flags \|= CONFIG_UPDATE_CHANNEL;
	185	if (rt2x00dev->tx_power != conf->power_level)
	186	flags \|= CONFIG_UPDATE_TXPOWER;
addc81bd ID	187
	188	/*
	189	* Determining changes in the antenna setups request several checks:
	190	* antenna_sel_{r,t}x = 0
	191	* -> Does active_{r,t}x match default_{r,t}x
	192	* -> Is default_{r,t}x SW_DIVERSITY
	193	* antenna_sel_{r,t}x = 1/2
	194	* -> Does active_{r,t}x match antenna_sel_{r,t}x
	195	* The reason for not updating the antenna while SW diversity
	196	* should be used is simple: Software diversity means that
	197	* we should switch between the antenna's based on the
	198	* quality. This means that the current antenna is good enough
	199	* to work with untill the link tuner decides that an antenna
	200	* switch should be performed.
	201	*/
	202	if (!conf->antenna_sel_rx &&
	203	default_ant->rx != ANTENNA_SW_DIVERSITY &&
	204	default_ant->rx != active_ant->rx)
	205	flags \|= CONFIG_UPDATE_ANTENNA;
	206	else if (conf->antenna_sel_rx &&
	207	conf->antenna_sel_rx != active_ant->rx)
	208	flags \|= CONFIG_UPDATE_ANTENNA;
16b1951f MN	209	else if (active_ant->rx == ANTENNA_SW_DIVERSITY)
16b1951f MN	210	flags \|= CONFIG_UPDATE_ANTENNA;
addc81bd ID	211
	212	if (!conf->antenna_sel_tx &&
	213	default_ant->tx != ANTENNA_SW_DIVERSITY &&
	214	default_ant->tx != active_ant->tx)
	215	flags \|= CONFIG_UPDATE_ANTENNA;
	216	else if (conf->antenna_sel_tx &&
	217	conf->antenna_sel_tx != active_ant->tx)
95ea3627	218	flags \|= CONFIG_UPDATE_ANTENNA;
16b1951f MN	219	else if (active_ant->tx == ANTENNA_SW_DIVERSITY)
16b1951f MN	220	flags \|= CONFIG_UPDATE_ANTENNA;
95ea3627 ID	221
	222	/*
	223	* The following configuration options are never
	224	* stored anywhere and will always be updated.
	225	*/
	226	flags \|= CONFIG_UPDATE_SLOT_TIME;
	227	flags \|= CONFIG_UPDATE_BEACON_INT;
	228
5c58ee51 ID	229	/*
	230	* We have determined what options should be updated,
	231	* now precalculate device configuration values depending
	232	* on what configuration options need to be updated.
	233	*/
95ea3627	234	config:
5c58ee51 ID	235	memset(&libconf, 0, sizeof(libconf));
	236
	237	if (flags & CONFIG_UPDATE_PHYMODE) {
8318d78a	238	band = &rt2x00dev->bands[conf->channel->band];
f5507ce9 ID	239
f5507ce9 ID	240	libconf.band = conf->channel->band;
aa776721	241	libconf.basic_rates = rt2x00lib_get_basic_rates(band);
5c58ee51 ID	242	}
	243
	244	if (flags & CONFIG_UPDATE_CHANNEL) {
	245	memcpy(&libconf.rf,
8318d78a	246	&rt2x00dev->spec.channels[conf->channel->hw_value],
5c58ee51 ID	247	sizeof(libconf.rf));
	248	}
	249
addc81bd ID	250	if (flags & CONFIG_UPDATE_ANTENNA) {
	251	if (conf->antenna_sel_rx)
	252	libconf.ant.rx = conf->antenna_sel_rx;
	253	else if (default_ant->rx != ANTENNA_SW_DIVERSITY)
	254	libconf.ant.rx = default_ant->rx;
	255	else if (active_ant->rx == ANTENNA_SW_DIVERSITY)
	256	libconf.ant.rx = ANTENNA_B;
ada662f3 ID	257	else
ada662f3 ID	258	libconf.ant.rx = active_ant->rx;
addc81bd ID	259
	260	if (conf->antenna_sel_tx)
	261	libconf.ant.tx = conf->antenna_sel_tx;
	262	else if (default_ant->tx != ANTENNA_SW_DIVERSITY)
	263	libconf.ant.tx = default_ant->tx;
	264	else if (active_ant->tx == ANTENNA_SW_DIVERSITY)
	265	libconf.ant.tx = ANTENNA_B;
ada662f3 ID	266	else
ada662f3 ID	267	libconf.ant.tx = active_ant->tx;
addc81bd ID	268	}
addc81bd ID	269
5c58ee51 ID	270	if (flags & CONFIG_UPDATE_SLOT_TIME) {
	271	short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME;
	272
	273	libconf.slot_time =
	274	short_slot_time ? SHORT_SLOT_TIME : SLOT_TIME;
	275	libconf.sifs = SIFS;
	276	libconf.pifs = short_slot_time ? SHORT_PIFS : PIFS;
	277	libconf.difs = short_slot_time ? SHORT_DIFS : DIFS;
f2fdbc48	278	libconf.eifs = short_slot_time ? SHORT_EIFS : EIFS;
5c58ee51 ID	279	}
	280
	281	libconf.conf = conf;
	282
	283	/*
	284	* Start configuration.
	285	*/
6bb40dd1	286	rt2x00dev->ops->lib->config(rt2x00dev, &libconf, flags);
95ea3627 ID	287
	288	/*
	289	* Some configuration changes affect the link quality
	290	* which means we need to reset the link tuner.
	291	*/
	292	if (flags & (CONFIG_UPDATE_CHANNEL \| CONFIG_UPDATE_ANTENNA))
	293	rt2x00lib_reset_link_tuner(rt2x00dev);
	294
16b1951f	295	if (flags & CONFIG_UPDATE_PHYMODE) {
8318d78a JB	296	rt2x00dev->curr_band = conf->channel->band;
8318d78a JB	297	rt2x00dev->rx_status.band = conf->channel->band;
16b1951f MN	298	}
16b1951f MN	299
8318d78a	300	rt2x00dev->rx_status.freq = conf->channel->center_freq;
95ea3627	301	rt2x00dev->tx_power = conf->power_level;
16b1951f MN	302
	303	if (flags & CONFIG_UPDATE_ANTENNA) {
	304	rt2x00dev->link.ant.active.rx = libconf.ant.rx;
	305	rt2x00dev->link.ant.active.tx = libconf.ant.tx;
	306	}
95ea3627	307	}