292 lines
6.5 KiB
C
292 lines
6.5 KiB
C
/* cfg80211 support
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*
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* See copyright notice in main.c
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*/
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#include <linux/ieee80211.h>
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#include <net/cfg80211.h>
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#include "hw.h"
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#include "main.h"
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#include "orinoco.h"
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#include "cfg.h"
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/* Supported bitrates. Must agree with hw.c */
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static struct ieee80211_rate orinoco_rates[] = {
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{ .bitrate = 10 },
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{ .bitrate = 20 },
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{ .bitrate = 55 },
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{ .bitrate = 110 },
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};
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static const void * const orinoco_wiphy_privid = &orinoco_wiphy_privid;
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/* Called after orinoco_private is allocated. */
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void orinoco_wiphy_init(struct wiphy *wiphy)
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{
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struct orinoco_private *priv = wiphy_priv(wiphy);
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wiphy->privid = orinoco_wiphy_privid;
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set_wiphy_dev(wiphy, priv->dev);
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}
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/* Called after firmware is initialised */
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int orinoco_wiphy_register(struct wiphy *wiphy)
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{
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struct orinoco_private *priv = wiphy_priv(wiphy);
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int i, channels = 0;
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if (priv->firmware_type == FIRMWARE_TYPE_AGERE)
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wiphy->max_scan_ssids = 1;
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else
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wiphy->max_scan_ssids = 0;
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wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
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/* TODO: should we set if we only have demo ad-hoc?
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* (priv->has_port3)
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*/
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if (priv->has_ibss)
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wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
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if (!priv->broken_monitor || force_monitor)
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wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR);
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priv->band.bitrates = orinoco_rates;
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priv->band.n_bitrates = ARRAY_SIZE(orinoco_rates);
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/* Only support channels allowed by the card EEPROM */
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for (i = 0; i < NUM_CHANNELS; i++) {
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if (priv->channel_mask & (1 << i)) {
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priv->channels[i].center_freq =
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ieee80211_dsss_chan_to_freq(i + 1);
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channels++;
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}
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}
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priv->band.channels = priv->channels;
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priv->band.n_channels = channels;
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wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band;
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wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
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i = 0;
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if (priv->has_wep) {
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priv->cipher_suites[i] = WLAN_CIPHER_SUITE_WEP40;
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i++;
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if (priv->has_big_wep) {
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priv->cipher_suites[i] = WLAN_CIPHER_SUITE_WEP104;
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i++;
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}
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}
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if (priv->has_wpa) {
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priv->cipher_suites[i] = WLAN_CIPHER_SUITE_TKIP;
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i++;
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}
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wiphy->cipher_suites = priv->cipher_suites;
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wiphy->n_cipher_suites = i;
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wiphy->rts_threshold = priv->rts_thresh;
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if (!priv->has_mwo)
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wiphy->frag_threshold = priv->frag_thresh + 1;
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wiphy->retry_short = priv->short_retry_limit;
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wiphy->retry_long = priv->long_retry_limit;
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return wiphy_register(wiphy);
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}
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static int orinoco_change_vif(struct wiphy *wiphy, struct net_device *dev,
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enum nl80211_iftype type, u32 *flags,
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struct vif_params *params)
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{
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struct orinoco_private *priv = wiphy_priv(wiphy);
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int err = 0;
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unsigned long lock;
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if (orinoco_lock(priv, &lock) != 0)
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return -EBUSY;
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switch (type) {
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case NL80211_IFTYPE_ADHOC:
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if (!priv->has_ibss && !priv->has_port3)
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err = -EINVAL;
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break;
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case NL80211_IFTYPE_STATION:
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break;
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case NL80211_IFTYPE_MONITOR:
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if (priv->broken_monitor && !force_monitor) {
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wiphy_warn(wiphy,
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"Monitor mode support is buggy in this firmware, not enabling\n");
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err = -EINVAL;
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}
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break;
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default:
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err = -EINVAL;
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}
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if (!err) {
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priv->iw_mode = type;
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set_port_type(priv);
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err = orinoco_commit(priv);
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}
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orinoco_unlock(priv, &lock);
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return err;
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}
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static int orinoco_scan(struct wiphy *wiphy,
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struct cfg80211_scan_request *request)
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{
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struct orinoco_private *priv = wiphy_priv(wiphy);
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int err;
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if (!request)
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return -EINVAL;
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if (priv->scan_request && priv->scan_request != request)
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return -EBUSY;
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priv->scan_request = request;
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err = orinoco_hw_trigger_scan(priv, request->ssids);
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/* On error the we aren't processing the request */
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if (err)
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priv->scan_request = NULL;
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return err;
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}
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static int orinoco_set_monitor_channel(struct wiphy *wiphy,
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struct ieee80211_channel *chan,
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enum nl80211_channel_type channel_type)
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{
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struct orinoco_private *priv = wiphy_priv(wiphy);
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int err = 0;
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unsigned long flags;
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int channel;
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if (!chan)
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return -EINVAL;
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if (channel_type != NL80211_CHAN_NO_HT)
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return -EINVAL;
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if (chan->band != IEEE80211_BAND_2GHZ)
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return -EINVAL;
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channel = ieee80211_freq_to_dsss_chan(chan->center_freq);
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if ((channel < 1) || (channel > NUM_CHANNELS) ||
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!(priv->channel_mask & (1 << (channel - 1))))
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return -EINVAL;
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if (orinoco_lock(priv, &flags) != 0)
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return -EBUSY;
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priv->channel = channel;
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if (priv->iw_mode == NL80211_IFTYPE_MONITOR) {
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/* Fast channel change - no commit if successful */
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struct hermes *hw = &priv->hw;
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err = hw->ops->cmd_wait(hw, HERMES_CMD_TEST |
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HERMES_TEST_SET_CHANNEL,
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channel, NULL);
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}
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orinoco_unlock(priv, &flags);
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return err;
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}
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static int orinoco_set_wiphy_params(struct wiphy *wiphy, u32 changed)
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{
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struct orinoco_private *priv = wiphy_priv(wiphy);
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int frag_value = -1;
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int rts_value = -1;
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int err = 0;
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if (changed & WIPHY_PARAM_RETRY_SHORT) {
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/* Setting short retry not supported */
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err = -EINVAL;
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}
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if (changed & WIPHY_PARAM_RETRY_LONG) {
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/* Setting long retry not supported */
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err = -EINVAL;
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}
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if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
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/* Set fragmentation */
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if (priv->has_mwo) {
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if (wiphy->frag_threshold < 0)
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frag_value = 0;
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else {
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printk(KERN_WARNING "%s: Fixed fragmentation "
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"is not supported on this firmware. "
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"Using MWO robust instead.\n",
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priv->ndev->name);
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frag_value = 1;
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}
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} else {
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if (wiphy->frag_threshold < 0)
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frag_value = 2346;
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else if ((wiphy->frag_threshold < 257) ||
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(wiphy->frag_threshold > 2347))
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err = -EINVAL;
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else
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/* cfg80211 value is 257-2347 (odd only)
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* orinoco rid has range 256-2346 (even only) */
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frag_value = wiphy->frag_threshold & ~0x1;
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}
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}
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if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
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/* Set RTS.
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*
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* Prism documentation suggests default of 2432,
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* and a range of 0-3000.
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*
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* Current implementation uses 2347 as the default and
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* the upper limit.
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*/
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if (wiphy->rts_threshold < 0)
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rts_value = 2347;
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else if (wiphy->rts_threshold > 2347)
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err = -EINVAL;
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else
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rts_value = wiphy->rts_threshold;
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}
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if (!err) {
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unsigned long flags;
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if (orinoco_lock(priv, &flags) != 0)
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return -EBUSY;
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if (frag_value >= 0) {
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if (priv->has_mwo)
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priv->mwo_robust = frag_value;
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else
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priv->frag_thresh = frag_value;
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}
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if (rts_value >= 0)
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priv->rts_thresh = rts_value;
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err = orinoco_commit(priv);
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orinoco_unlock(priv, &flags);
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}
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return err;
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}
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const struct cfg80211_ops orinoco_cfg_ops = {
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.change_virtual_intf = orinoco_change_vif,
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.set_monitor_channel = orinoco_set_monitor_channel,
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.scan = orinoco_scan,
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.set_wiphy_params = orinoco_set_wiphy_params,
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};
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