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path: root/drivers/net/wireless/rt2x00/rt2x00config.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00config.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00config.c187
1 files changed, 134 insertions, 53 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c
index 9c2f5517af2..1122dc44c9f 100644
--- a/drivers/net/wireless/rt2x00/rt2x00config.c
+++ b/drivers/net/wireless/rt2x00/rt2x00config.c
@@ -1,5 +1,5 @@
/*
- Copyright (C) 2004 - 2009 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/>.
*/
/*
@@ -41,10 +39,12 @@ void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
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_BEACON;
+ conf.sync = TSF_SYNC_AP_NONE;
break;
case NL80211_IFTYPE_STATION:
conf.sync = TSF_SYNC_INFRA;
@@ -58,15 +58,15 @@ void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
* 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.
+ * to ACK frames or considers itself associated.
*/
- memset(&conf.mac, 0, sizeof(conf.mac));
+ memset(conf.mac, 0, sizeof(conf.mac));
if (mac)
- memcpy(&conf.mac, mac, ETH_ALEN);
+ memcpy(conf.mac, mac, ETH_ALEN);
- memset(&conf.bssid, 0, sizeof(conf.bssid));
+ memset(conf.bssid, 0, sizeof(conf.bssid));
if (bssid)
- memcpy(&conf.bssid, bssid, ETH_ALEN);
+ memcpy(conf.bssid, bssid, ETH_ALEN);
flags |= CONFIG_UPDATE_TYPE;
if (mac || (!rt2x00dev->intf_ap_count && !rt2x00dev->intf_sta_count))
@@ -79,7 +79,8 @@ void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
- struct ieee80211_bss_conf *bss_conf)
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changed)
{
struct rt2x00lib_erp erp;
@@ -94,72 +95,109 @@ void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
erp.difs = bss_conf->use_short_slot ? SHORT_DIFS : DIFS;
erp.eifs = bss_conf->use_short_slot ? SHORT_EIFS : EIFS;
- erp.ack_timeout = PLCP + erp.difs + GET_DURATION(ACK_SIZE, 10);
- erp.ack_consume_time = SIFS + PLCP + GET_DURATION(ACK_SIZE, 10);
+ erp.basic_rates = bss_conf->basic_rates;
+ erp.beacon_int = bss_conf->beacon_int;
- 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;
- }
+ /* 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;
- erp.basic_rates = bss_conf->basic_rates;
+ /* Update global beacon interval time, this is needed for PS support */
+ rt2x00dev->beacon_int = bss_conf->beacon_int;
- rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp);
-}
+ if (changed & BSS_CHANGED_HT)
+ erp.ht_opmode = bss_conf->ht_operation_mode;
-static inline
-enum antenna rt2x00lib_config_antenna_check(enum antenna current_ant,
- enum antenna default_ant)
-{
- if (current_ant != ANTENNA_SW_DIVERSITY)
- return current_ant;
- return (default_ant != ANTENNA_SW_DIVERSITY) ? default_ant : ANTENNA_B;
+ rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp, changed);
}
void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
- struct antenna_setup *ant)
+ struct antenna_setup config)
{
+ struct link_ant *ant = &rt2x00dev->link.ant;
struct antenna_setup *def = &rt2x00dev->default_ant;
struct antenna_setup *active = &rt2x00dev->link.ant.active;
/*
- * Failsafe: Make sure we are not sending the
- * ANTENNA_SW_DIVERSITY state to the driver.
- * If that happes fallback to hardware default,
- * or our own default.
- * The calls to rt2x00lib_config_antenna_check()
- * might have caused that we restore back to the already
- * active setting. If that has happened we can quit.
+ * 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.
*/
- ant->rx = rt2x00lib_config_antenna_check(ant->rx, def->rx);
- ant->tx = rt2x00lib_config_antenna_check(ant->tx, def->tx);
-
- if (ant->rx == active->rx && ant->tx == active->tx)
- return;
+ 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 (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_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
+ 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_ant(rt2x00dev, ant);
+ rt2x00dev->ops->lib->config_ant(rt2x00dev, &config);
rt2x00link_reset_tuner(rt2x00dev, true);
- memcpy(active, ant, sizeof(*ant));
+ memcpy(active, &config, sizeof(config));
if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
+ rt2x00queue_start_queue(rt2x00dev->rx);
+}
+
+static u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
+ struct ieee80211_conf *conf)
+{
+ struct hw_mode_spec *spec = &rt2x00dev->spec;
+ int center_channel;
+ u16 i;
+
+ /*
+ * Initialize center channel to current channel.
+ */
+ center_channel = spec->channels[conf->chandef.chan->hw_value].channel;
+
+ /*
+ * Adjust center channel to HT40+ and HT40- operation.
+ */
+ if (conf_is_ht40_plus(conf))
+ center_channel += 2;
+ else if (conf_is_ht40_minus(conf))
+ center_channel -= (center_channel == 14) ? 1 : 2;
+
+ for (i = 0; i < spec->num_channels; i++)
+ if (spec->channels[i].channel == center_channel)
+ return i;
+
+ WARN_ON(1);
+ return conf->chandef.chan->hw_value;
}
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
@@ -167,21 +205,45 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
unsigned int ieee80211_flags)
{
struct rt2x00lib_conf libconf;
+ u16 hw_value;
+ u16 autowake_timeout;
+ u16 beacon_int;
+ u16 beacon_diff;
memset(&libconf, 0, sizeof(libconf));
libconf.conf = conf;
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;
+ }
+
memcpy(&libconf.rf,
- &rt2x00dev->spec.channels[conf->channel->hw_value],
+ &rt2x00dev->spec.channels[hw_value],
sizeof(libconf.rf));
memcpy(&libconf.channel,
- &rt2x00dev->spec.channels_info[conf->channel->hw_value],
+ &rt2x00dev->spec.channels_info[hw_value],
sizeof(libconf.channel));
+
+ /* Used for VCO periodic calibration */
+ rt2x00dev->rf_channel = libconf.rf.channel;
}
+ if (test_bit(REQUIRE_PS_AUTOWAKE, &rt2x00dev->cap_flags) &&
+ (ieee80211_flags & IEEE80211_CONF_CHANGE_PS))
+ cancel_delayed_work_sync(&rt2x00dev->autowakeup_work);
+
/*
* Start configuration.
*/
@@ -194,11 +256,30 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL)
rt2x00link_reset_tuner(rt2x00dev, false);
- rt2x00dev->curr_band = conf->channel->band;
+ 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);
+ }
+
+ if (conf->flags & IEEE80211_CONF_PS)
+ set_bit(CONFIG_POWERSAVING, &rt2x00dev->flags);
+ else
+ clear_bit(CONFIG_POWERSAVING, &rt2x00dev->flags);
+
+ 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;
-
- rt2x00dev->rx_status.band = conf->channel->band;
- rt2x00dev->rx_status.freq = conf->channel->center_freq;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 21:39:03 +0000