]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - drivers/net/wireless/rt2x00/rt2x00config.c
rt2x00: Add support for CTS protection in rt2x00lib
[linux-2.6-omap-h63xx.git] / drivers / net / wireless / rt2x00 / rt2x00config.c
index 07adc576db49dc28f92819c6ec46f04e926b4b48..f20ca712504f734a39e8d5ee5a2264ad955365f7 100644 (file)
@@ -1,5 +1,5 @@
 /*
-       Copyright (C) 2004 - 2007 rt2x00 SourceForge Project
+       Copyright (C) 2004 - 2008 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)
-{
-       __le32 reg[2];
-
-       memset(&reg, 0, sizeof(reg));
-       if (mac)
-               memcpy(&reg, mac, ETH_ALEN);
-
-       rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, &reg[0]);
-}
-
-void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid)
+void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
+                          struct rt2x00_intf *intf,
+                          enum ieee80211_if_types type,
+                          u8 *mac, u8 *bssid)
 {
-       __le32 reg[2];
+       struct rt2x00intf_conf conf;
+       unsigned int flags = 0;
 
-       memset(&reg, 0, sizeof(reg));
-       if (bssid)
-               memcpy(&reg, bssid, ETH_ALEN);
-
-       rt2x00dev->ops->lib->config_bssid(rt2x00dev, &reg[0]);
-}
-
-void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, const int type)
-{
-       int tsf_sync;
+       conf.type = type;
 
        switch (type) {
        case IEEE80211_IF_TYPE_IBSS:
        case IEEE80211_IF_TYPE_AP:
-               tsf_sync = TSF_SYNC_BEACON;
+               conf.sync = TSF_SYNC_BEACON;
                break;
        case IEEE80211_IF_TYPE_STA:
-               tsf_sync = TSF_SYNC_INFRA;
+               conf.sync = TSF_SYNC_INFRA;
                break;
        default:
-               tsf_sync = TSF_SYNC_NONE;
+               conf.sync = TSF_SYNC_NONE;
                break;
        }
 
-       rt2x00dev->ops->lib->config_type(rt2x00dev, type, tsf_sync);
+       /*
+        * 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,
@@ -113,8 +129,9 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
         * 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);
+       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;
@@ -123,12 +140,26 @@ void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
                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_hw_mode *mode;
-       struct ieee80211_rate *rate;
+       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;
@@ -147,9 +178,9 @@ void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
         * Check which configuration options have been
         * updated and should be send to the device.
         */
-       if (rt2x00dev->rx_status.phymode != conf->phymode)
+       if (rt2x00dev->rx_status.band != conf->channel->band)
                flags |= CONFIG_UPDATE_PHYMODE;
-       if (rt2x00dev->rx_status.channel != conf->channel)
+       if (rt2x00dev->rx_status.freq != conf->channel->center_freq)
                flags |= CONFIG_UPDATE_CHANNEL;
        if (rt2x00dev->tx_power != conf->power_level)
                flags |= CONFIG_UPDATE_TXPOWER;
@@ -204,33 +235,15 @@ 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;
+               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_val],
+                      &rt2x00dev->spec.channels[conf->channel->hw_value],
                       sizeof(libconf.rf));
        }
 
@@ -266,7 +279,7 @@ config:
        /*
         * Start configuration.
         */
-       rt2x00dev->ops->lib->config(rt2x00dev, flags, &libconf);
+       rt2x00dev->ops->lib->config(rt2x00dev, &libconf, flags);
 
        /*
         * Some configuration changes affect the link quality
@@ -276,12 +289,11 @@ config:
                rt2x00lib_reset_link_tuner(rt2x00dev);
 
        if (flags & CONFIG_UPDATE_PHYMODE) {
-               rt2x00dev->curr_hwmode = libconf.phymode;
-               rt2x00dev->rx_status.phymode = conf->phymode;
+               rt2x00dev->curr_band = conf->channel->band;
+               rt2x00dev->rx_status.band = conf->channel->band;
        }
 
-       rt2x00dev->rx_status.freq = conf->freq;
-       rt2x00dev->rx_status.channel = conf->channel;
+       rt2x00dev->rx_status.freq = conf->channel->center_freq;
        rt2x00dev->tx_power = conf->power_level;
 
        if (flags & CONFIG_UPDATE_ANTENNA) {