1 files changed, 192 insertions, 198 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 07adc576db4..1122dc44c9f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -1,5 +1,5 @@
 /*
-	Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+	Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
 	<http://rt2x00.serialmonkey.com>
 
 	This program is free software; you can redistribute it and/or modify
@@ -13,9 +13,7 @@
 	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.
+	along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
@@ -29,263 +27,259 @@
 #include "rt2x00.h"
 #include "rt2x00lib.h"
 
-
-/*
- * The MAC and BSSID addressess are simple array of bytes,
- * these arrays are little endian, so when sending the addressess
- * to the drivers, copy the it into a endian-signed variable.
- *
- * Note that all devices (except rt2500usb) have 32 bits
- * register word sizes. This means that whatever variable we
- * pass _must_ be a multiple of 32 bits. Otherwise the device
- * might not accept what we are sending to it.
- * This will also make it easier for the driver to write
- * the data to the device.
- *
- * Also note that when NULL is passed as address the
- * 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.
- */
-void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac)
+void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
+			   struct rt2x00_intf *intf,
+			   enum nl80211_iftype type,
+			   const u8 *mac, const u8 *bssid)
 {
-	__le32 reg[2];
+	struct rt2x00intf_conf conf;
+	unsigned int flags = 0;
 
-	memset(&reg, 0, sizeof(reg));
-	if (mac)
-		memcpy(&reg, mac, ETH_ALEN);
+	conf.type = type;
 
-	rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, &reg[0]);
-}
+	switch (type) {
+	case NL80211_IFTYPE_ADHOC:
+		conf.sync = TSF_SYNC_ADHOC;
+		break;
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_MESH_POINT:
+	case NL80211_IFTYPE_WDS:
+		conf.sync = TSF_SYNC_AP_NONE;
+		break;
+	case NL80211_IFTYPE_STATION:
+		conf.sync = TSF_SYNC_INFRA;
+		break;
+	default:
+		conf.sync = TSF_SYNC_NONE;
+		break;
+	}
 
-void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
-{
-	__le32 reg[2];
+	/*
+	 * 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 considers itself associated.
+	 */
+	memset(conf.mac, 0, sizeof(conf.mac));
+	if (mac)
+		memcpy(conf.mac, mac, ETH_ALEN);
 
-	memset(&reg, 0, sizeof(reg));
+	memset(conf.bssid, 0, sizeof(conf.bssid));
 	if (bssid)
-		memcpy(&reg, bssid, ETH_ALEN);
+		memcpy(conf.bssid, bssid, ETH_ALEN);
 
-	rt2x00dev->ops->lib->config_bssid(rt2x00dev, &reg[0]);
+	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_type(struct rt2x00_dev *rt2x00dev, const int type)
+void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
+			  struct rt2x00_intf *intf,
+			  struct ieee80211_bss_conf *bss_conf,
+			  u32 changed)
 {
-	int tsf_sync;
+	struct rt2x00lib_erp erp;
 
-	switch (type) {
-	case IEEE80211_IF_TYPE_IBSS:
-	case IEEE80211_IF_TYPE_AP:
-		tsf_sync = TSF_SYNC_BEACON;
-		break;
-	case IEEE80211_IF_TYPE_STA:
-		tsf_sync = TSF_SYNC_INFRA;
-		break;
-	default:
-		tsf_sync = TSF_SYNC_NONE;
-		break;
-	}
+	memset(&erp, 0, sizeof(erp));
+
+	erp.short_preamble = bss_conf->use_short_preamble;
+	erp.cts_protection = bss_conf->use_cts_prot;
 
-	rt2x00dev->ops->lib->config_type(rt2x00dev, type, tsf_sync);
+	erp.slot_time = bss_conf->use_short_slot ? SHORT_SLOT_TIME : SLOT_TIME;
+	erp.sifs = SIFS;
+	erp.pifs = bss_conf->use_short_slot ? SHORT_PIFS : PIFS;
+	erp.difs = bss_conf->use_short_slot ? SHORT_DIFS : DIFS;
+	erp.eifs = bss_conf->use_short_slot ? SHORT_EIFS : EIFS;
+
+	erp.basic_rates = bss_conf->basic_rates;
+	erp.beacon_int = bss_conf->beacon_int;
+
+	/* Update the AID, this is needed for dynamic PS support */
+	rt2x00dev->aid = bss_conf->assoc ? bss_conf->aid : 0;
+	rt2x00dev->last_beacon = bss_conf->sync_tsf;
+
+	/* Update global beacon interval time, this is needed for PS support */
+	rt2x00dev->beacon_int = bss_conf->beacon_int;
+
+	if (changed & BSS_CHANGED_HT)
+		erp.ht_opmode = bss_conf->ht_operation_mode;
+
+	rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp, changed);
 }
 
 void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
-			      enum antenna rx, enum antenna tx)
+			      struct antenna_setup config)
 {
-	struct rt2x00lib_conf libconf;
+	struct link_ant *ant = &rt2x00dev->link.ant;
+	struct antenna_setup *def = &rt2x00dev->default_ant;
+	struct antenna_setup *active = &rt2x00dev->link.ant.active;
 
-	libconf.ant.rx = rx;
-	libconf.ant.tx = tx;
+	/*
+	 * When the caller tries to send the SW diversity,
+	 * we must update the ANTENNA_RX_DIVERSITY flag to
+	 * enable the antenna diversity in the link tuner.
+	 *
+	 * Secondly, we must guarentee we never send the
+	 * software antenna diversity command to the driver.
+	 */
+	if (!(ant->flags & ANTENNA_RX_DIVERSITY)) {
+		if (config.rx == ANTENNA_SW_DIVERSITY) {
+			ant->flags |= ANTENNA_RX_DIVERSITY;
+
+			if (def->rx == ANTENNA_SW_DIVERSITY)
+				config.rx = ANTENNA_B;
+			else
+				config.rx = def->rx;
+		}
+	} else if (config.rx == ANTENNA_SW_DIVERSITY)
+		config.rx = active->rx;
+
+	if (!(ant->flags & ANTENNA_TX_DIVERSITY)) {
+		if (config.tx == ANTENNA_SW_DIVERSITY) {
+			ant->flags |= ANTENNA_TX_DIVERSITY;
 
-	if (rx == rt2x00dev->link.ant.active.rx &&
-	    tx == rt2x00dev->link.ant.active.tx)
-		return;
+			if (def->tx == ANTENNA_SW_DIVERSITY)
+				config.tx = ANTENNA_B;
+			else
+				config.tx = def->tx;
+		}
+	} else if (config.tx == ANTENNA_SW_DIVERSITY)
+		config.tx = active->tx;
 
 	/*
 	 * 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);
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2x00queue_stop_queue(rt2x00dev->rx);
 
 	/*
 	 * 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, CONFIG_UPDATE_ANTENNA, &libconf);
-	rt2x00lib_reset_link_tuner(rt2x00dev);
+	rt2x00dev->ops->lib->config_ant(rt2x00dev, &config);
+
+	rt2x00link_reset_tuner(rt2x00dev, true);
 
-	rt2x00dev->link.ant.active.rx = libconf.ant.rx;
-	rt2x00dev->link.ant.active.tx = libconf.ant.tx;
+	memcpy(active, &config, sizeof(config));
 
-	if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2x00queue_start_queue(rt2x00dev->rx);
 }
 
-void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
-		      struct ieee80211_conf *conf, const int force_config)
+static u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
+				   struct ieee80211_conf *conf)
 {
-	struct rt2x00lib_conf libconf;
-	struct ieee80211_hw_mode *mode;
-	struct ieee80211_rate *rate;
-	struct antenna_setup *default_ant = &rt2x00dev->default_ant;
-	struct antenna_setup *active_ant = &rt2x00dev->link.ant.active;
-	int flags = 0;
-	int short_slot_time;
+	struct hw_mode_spec *spec = &rt2x00dev->spec;
+	int center_channel;
+	u16 i;
 
 	/*
-	 * In some situations we want to force all configurations
-	 * to be reloaded (When resuming for instance).
+	 * Initialize center channel to current channel.
 	 */
-	if (force_config) {
-		flags = CONFIG_UPDATE_ALL;
-		goto config;
-	}
+	center_channel = spec->channels[conf->chandef.chan->hw_value].channel;
 
 	/*
-	 * Check which configuration options have been
-	 * updated and should be send to the device.
+	 * Adjust center channel to HT40+ and HT40- operation.
 	 */
-	if (rt2x00dev->rx_status.phymode != conf->phymode)
-		flags |= CONFIG_UPDATE_PHYMODE;
-	if (rt2x00dev->rx_status.channel != conf->channel)
-		flags |= CONFIG_UPDATE_CHANNEL;
-	if (rt2x00dev->tx_power != conf->power_level)
-		flags |= CONFIG_UPDATE_TXPOWER;
+	if (conf_is_ht40_plus(conf))
+		center_channel += 2;
+	else if (conf_is_ht40_minus(conf))
+		center_channel -= (center_channel == 14) ? 1 : 2;
 
-	/*
-	 * 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;
+	for (i = 0; i < spec->num_channels; i++)
+		if (spec->channels[i].channel == center_channel)
+			return i;
 
-	/*
-	 * The following configuration options are never
-	 * stored anywhere and will always be updated.
-	 */
-	flags |= CONFIG_UPDATE_SLOT_TIME;
-	flags |= CONFIG_UPDATE_BEACON_INT;
+	WARN_ON(1);
+	return conf->chandef.chan->hw_value;
+}
 
-	/*
-	 * 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));
+void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
+		      struct ieee80211_conf *conf,
+		      unsigned int ieee80211_flags)
+{
+	struct rt2x00lib_conf libconf;
+	u16 hw_value;
+	u16 autowake_timeout;
+	u16 beacon_int;
+	u16 beacon_diff;
 
-	if (flags & CONFIG_UPDATE_PHYMODE) {
-		switch (conf->phymode) {
-		case MODE_IEEE80211A:
-			libconf.phymode = HWMODE_A;
-			break;
-		case MODE_IEEE80211B:
-			libconf.phymode = HWMODE_B;
-			break;
-		case MODE_IEEE80211G:
-			libconf.phymode = HWMODE_G;
-			break;
-		default:
-			ERROR(rt2x00dev,
-			      "Attempt to configure unsupported mode (%d)"
-			      "Defaulting to 802.11b", conf->phymode);
-			libconf.phymode = HWMODE_B;
-		}
+	memset(&libconf, 0, sizeof(libconf));
 
-		mode = &rt2x00dev->hwmodes[libconf.phymode];
-		rate = &mode->rates[mode->num_rates - 1];
+	libconf.conf = conf;
 
-		libconf.basic_rates =
-		    DEVICE_GET_RATE_FIELD(rate->val, RATEMASK) & DEV_BASIC_RATEMASK;
-	}
+	if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) {
+		if (!conf_is_ht(conf))
+			set_bit(CONFIG_HT_DISABLED, &rt2x00dev->flags);
+		else
+			clear_bit(CONFIG_HT_DISABLED, &rt2x00dev->flags);
+
+		if (conf_is_ht40(conf)) {
+			set_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
+			hw_value = rt2x00ht_center_channel(rt2x00dev, conf);
+		} else {
+			clear_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
+			hw_value = conf->chandef.chan->hw_value;
+		}
 
-	if (flags & CONFIG_UPDATE_CHANNEL) {
 		memcpy(&libconf.rf,
-		       &rt2x00dev->spec.channels[conf->channel_val],
+		       &rt2x00dev->spec.channels[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;
-
-		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;
-	}
-
-	if (flags & CONFIG_UPDATE_SLOT_TIME) {
-		short_slot_time = conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME;
+		memcpy(&libconf.channel,
+		       &rt2x00dev->spec.channels_info[hw_value],
+		       sizeof(libconf.channel));
 
-		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 = EIFS;
+		/* Used for VCO periodic calibration */
+		rt2x00dev->rf_channel = libconf.rf.channel;
 	}
 
-	libconf.conf = conf;
+	if (test_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags) &&
+	    (ieee80211_flags & IEEE80211_CONF_CHANGE_PS))
+		cancel_delayed_work_sync(&rt2x00dev->autowakeup_work);
 
 	/*
 	 * Start configuration.
 	 */
-	rt2x00dev->ops->lib->config(rt2x00dev, flags, &libconf);
+	rt2x00dev->ops->lib->config(rt2x00dev, &libconf, ieee80211_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_hwmode = libconf.phymode;
-		rt2x00dev->rx_status.phymode = conf->phymode;
+	if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL)
+		rt2x00link_reset_tuner(rt2x00dev, false);
+
+	if (test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) &&
+	    test_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags) &&
+	    (ieee80211_flags & IEEE80211_CONF_CHANGE_PS) &&
+	    (conf->flags & IEEE80211_CONF_PS)) {
+		beacon_diff = (long)jiffies - (long)rt2x00dev->last_beacon;
+		beacon_int = msecs_to_jiffies(rt2x00dev->beacon_int);
+
+		if (beacon_diff > beacon_int)
+			beacon_diff = 0;
+
+		autowake_timeout = (conf->max_sleep_period * beacon_int) - beacon_diff;
+		queue_delayed_work(rt2x00dev->workqueue,
+				   &rt2x00dev->autowakeup_work,
+				   autowake_timeout - 15);
 	}
 
-	rt2x00dev->rx_status.freq = conf->freq;
-	rt2x00dev->rx_status.channel = conf->channel;
-	rt2x00dev->tx_power = conf->power_level;
+	if (conf->flags & IEEE80211_CONF_PS)
+		set_bit(CONFIG_POWERSAVING, &rt2x00dev->flags);
+	else
+		clear_bit(CONFIG_POWERSAVING, &rt2x00dev->flags);
 
-	if (flags & CONFIG_UPDATE_ANTENNA) {
-		rt2x00dev->link.ant.active.rx = libconf.ant.rx;
-		rt2x00dev->link.ant.active.tx = libconf.ant.tx;
-	}
+	rt2x00dev->curr_band = conf->chandef.chan->band;
+	rt2x00dev->curr_freq = conf->chandef.chan->center_freq;
+	rt2x00dev->tx_power = conf->power_level;
+	rt2x00dev->short_retry = conf->short_frame_max_tx_count;
+	rt2x00dev->long_retry = conf->long_frame_max_tx_count;
 }