/*
- Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+ Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
<http://rt2x00.serialmonkey.com>
This program is free software; you can redistribute it and/or modify
#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(®, 0, sizeof(reg));
- if (mac)
- memcpy(®, mac, ETH_ALEN);
+ conf.type = type;
- rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, ®[0]);
-}
+ switch (type) {
+ case NL80211_IFTYPE_ADHOC:
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_MESH_POINT:
+ case NL80211_IFTYPE_WDS:
+ conf.sync = TSF_SYNC_BEACON;
+ 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 consideres itself associated.
+ */
+ memset(&conf.mac, 0, sizeof(conf.mac));
+ if (mac)
+ memcpy(&conf.mac, mac, ETH_ALEN);
- memset(®, 0, sizeof(reg));
+ memset(&conf.bssid, 0, sizeof(conf.bssid));
if (bssid)
- memcpy(®, bssid, ETH_ALEN);
+ memcpy(&conf.bssid, bssid, ETH_ALEN);
- rt2x00dev->ops->lib->config_bssid(rt2x00dev, ®[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)
{
- 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;
+
+ 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.ack_timeout = PLCP + erp.difs + GET_DURATION(ACK_SIZE, 10);
+ erp.ack_consume_time = SIFS + PLCP + GET_DURATION(ACK_SIZE, 10);
+
+ 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_type(rt2x00dev, type, tsf_sync);
+ erp.basic_rates = bss_conf->basic_rates;
+
+ rt2x00dev->ops->lib->config_erp(rt2x00dev, &erp);
+}
+
+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;
}
void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
- enum antenna rx, enum antenna tx)
+ struct antenna_setup *ant)
{
- struct rt2x00lib_conf libconf;
+ struct antenna_setup *def = &rt2x00dev->default_ant;
+ struct antenna_setup *active = &rt2x00dev->link.ant.active;
- libconf.ant.rx = rx;
- libconf.ant.tx = tx;
+ /*
+ * 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.
+ */
+ ant->rx = rt2x00lib_config_antenna_check(ant->rx, def->rx);
+ ant->tx = rt2x00lib_config_antenna_check(ant->tx, def->tx);
- if (rx == rt2x00dev->link.ant.active.rx &&
- tx == rt2x00dev->link.ant.active.tx)
+ if (ant->rx == active->rx && ant->tx == 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))
+ if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF_LINK);
/*
* 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, ant);
- rt2x00dev->link.ant.active.rx = libconf.ant.rx;
- rt2x00dev->link.ant.active.tx = libconf.ant.tx;
+ rt2x00link_reset_tuner(rt2x00dev, true);
- if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
+ memcpy(active, ant, sizeof(*ant));
+
+ if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON_LINK);
}
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
- struct ieee80211_conf *conf, const int force_config)
+ struct ieee80211_conf *conf,
+ unsigned int ieee80211_flags)
{
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;
-
- /*
- * 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.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;
-
- /*
- * 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) {
- 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;
- }
-
- mode = &rt2x00dev->hwmodes[libconf.phymode];
- rate = &mode->rates[mode->num_rates - 1];
-
- libconf.basic_rates =
- DEVICE_GET_RATE_FIELD(rate->val, RATEMASK) & DEV_BASIC_RATEMASK;
- }
+ libconf.conf = conf;
+
+ if (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL) {
+ if (conf_is_ht40(conf))
+ __set_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
+ else
+ __clear_bit(CONFIG_CHANNEL_HT40, &rt2x00dev->flags);
- if (flags & CONFIG_UPDATE_CHANNEL) {
memcpy(&libconf.rf,
- &rt2x00dev->spec.channels[conf->channel_val],
+ &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;
-
- 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;
+ memcpy(&libconf.channel,
+ &rt2x00dev->spec.channels_info[conf->channel->hw_value],
+ sizeof(libconf.channel));
}
- 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 = EIFS;
- }
-
- libconf.conf = conf;
-
/*
* 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 (ieee80211_flags & IEEE80211_CONF_CHANGE_CHANNEL)
+ rt2x00link_reset_tuner(rt2x00dev, false);
- if (flags & CONFIG_UPDATE_PHYMODE) {
- rt2x00dev->curr_hwmode = libconf.phymode;
- rt2x00dev->rx_status.phymode = conf->phymode;
- }
-
- rt2x00dev->rx_status.freq = conf->freq;
- rt2x00dev->rx_status.channel = conf->channel;
+ rt2x00dev->curr_band = conf->channel->band;
rt2x00dev->tx_power = conf->power_level;
+ rt2x00dev->short_retry = conf->short_frame_max_tx_count;
+ rt2x00dev->long_retry = conf->long_frame_max_tx_count;
- if (flags & CONFIG_UPDATE_ANTENNA) {
- rt2x00dev->link.ant.active.rx = libconf.ant.rx;
- rt2x00dev->link.ant.active.tx = libconf.ant.tx;
- }
+ rt2x00dev->rx_status.band = conf->channel->band;
+ rt2x00dev->rx_status.freq = conf->channel->center_freq;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff