/*
- 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
Abstract: rt2x00 generic mac80211 routines.
*/
-/*
- * Set enviroment defines for rt2x00.h
- */
-#define DRV_NAME "rt2x00lib"
-
#include <linux/kernel.h>
#include <linux/module.h>
#include "rt2x00lib.h"
static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
- struct data_ring *ring,
- struct sk_buff *frag_skb,
- struct ieee80211_tx_control *control)
+ struct data_queue *queue,
+ struct sk_buff *frag_skb)
{
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(frag_skb);
+ struct ieee80211_tx_info *rts_info;
struct sk_buff *skb;
- int size;
+ unsigned int data_length;
+ int retval = 0;
- if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
- size = sizeof(struct ieee80211_cts);
+ if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+ data_length = sizeof(struct ieee80211_cts);
else
- size = sizeof(struct ieee80211_rts);
+ data_length = sizeof(struct ieee80211_rts);
- skb = dev_alloc_skb(size + rt2x00dev->hw->extra_tx_headroom);
- if (!skb) {
+ skb = dev_alloc_skb(data_length + rt2x00dev->hw->extra_tx_headroom);
+ if (unlikely(!skb)) {
WARNING(rt2x00dev, "Failed to create RTS/CTS frame.\n");
- return NETDEV_TX_BUSY;
+ return -ENOMEM;
}
skb_reserve(skb, rt2x00dev->hw->extra_tx_headroom);
- skb_put(skb, size);
+ skb_put(skb, data_length);
+
+ /*
+ * Copy TX information over from original frame to
+ * RTS/CTS frame. Note that we set the no encryption flag
+ * since we don't want this frame to be encrypted.
+ * RTS frames should be acked, while CTS-to-self frames
+ * should not. The ready for TX flag is cleared to prevent
+ * it being automatically send when the descriptor is
+ * written to the hardware.
+ */
+ memcpy(skb->cb, frag_skb->cb, sizeof(skb->cb));
+ rts_info = IEEE80211_SKB_CB(skb);
+ rts_info->flags &= ~IEEE80211_TX_CTL_USE_RTS_CTS;
+ rts_info->flags &= ~IEEE80211_TX_CTL_USE_CTS_PROTECT;
+ rts_info->flags &= ~IEEE80211_TX_CTL_REQ_TX_STATUS;
+
+ if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+ rts_info->flags |= IEEE80211_TX_CTL_NO_ACK;
+ else
+ rts_info->flags &= ~IEEE80211_TX_CTL_NO_ACK;
+
+ skb->do_not_encrypt = 1;
- if (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
- ieee80211_ctstoself_get(rt2x00dev->hw, rt2x00dev->interface.id,
- frag_skb->data, frag_skb->len, control,
+ /*
+ * RTS/CTS frame should use the length of the frame plus any
+ * encryption overhead that will be added by the hardware.
+ */
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+ if (!frag_skb->do_not_encrypt)
+ data_length += rt2x00crypto_tx_overhead(tx_info);
+#endif /* CONFIG_RT2X00_LIB_CRYPTO */
+
+ if (tx_info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT)
+ ieee80211_ctstoself_get(rt2x00dev->hw, tx_info->control.vif,
+ frag_skb->data, data_length, tx_info,
(struct ieee80211_cts *)(skb->data));
else
- ieee80211_rts_get(rt2x00dev->hw, rt2x00dev->interface.id,
- frag_skb->data, frag_skb->len, control,
+ ieee80211_rts_get(rt2x00dev->hw, tx_info->control.vif,
+ frag_skb->data, data_length, tx_info,
(struct ieee80211_rts *)(skb->data));
- if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, ring, skb, control)) {
+ retval = rt2x00queue_write_tx_frame(queue, skb);
+ if (retval) {
+ dev_kfree_skb_any(skb);
WARNING(rt2x00dev, "Failed to send RTS/CTS frame.\n");
- return NETDEV_TX_BUSY;
}
- return NETDEV_TX_OK;
+ return retval;
}
-int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
+int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data;
- struct data_ring *ring;
+ enum data_queue_qid qid = skb_get_queue_mapping(skb);
+ struct data_queue *queue;
u16 frame_control;
/*
- * Determine which ring to put packet on.
+ * Mac80211 might be calling this function while we are trying
+ * to remove the device or perhaps suspending it.
+ * Note that we can only stop the TX queues inside the TX path
+ * due to possible race conditions in mac80211.
+ */
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ goto exit_fail;
+
+ /*
+ * Determine which queue to put packet on.
*/
- ring = rt2x00lib_get_ring(rt2x00dev, control->queue);
- if (unlikely(!ring)) {
+ if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM &&
+ test_bit(DRIVER_REQUIRE_ATIM_QUEUE, &rt2x00dev->flags))
+ queue = rt2x00queue_get_queue(rt2x00dev, QID_ATIM);
+ else
+ queue = rt2x00queue_get_queue(rt2x00dev, qid);
+ if (unlikely(!queue)) {
ERROR(rt2x00dev,
"Attempt to send packet over invalid queue %d.\n"
- "Please file bug report to %s.\n",
- control->queue, DRV_PROJECT);
+ "Please file bug report to %s.\n", qid, DRV_PROJECT);
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
/*
- * If CTS/RTS is required. and this frame is not CTS or RTS,
- * create and queue that frame first. But make sure we have
- * at least enough entries available to send this CTS/RTS
- * frame as well as the data frame.
+ * If CTS/RTS is required. create and queue that frame first.
+ * Make sure we have at least enough entries available to send
+ * this CTS/RTS frame as well as the data frame.
+ * Note that when the driver has set the set_rts_threshold()
+ * callback function it doesn't need software generation of
+ * either RTS or CTS-to-self frame and handles everything
+ * inside the hardware.
*/
frame_control = le16_to_cpu(ieee80211hdr->frame_control);
- if (!is_rts_frame(frame_control) && !is_cts_frame(frame_control) &&
- (control->flags & (IEEE80211_TXCTL_USE_RTS_CTS |
- IEEE80211_TXCTL_USE_CTS_PROTECT))) {
- if (rt2x00_ring_free(ring) <= 1)
- return NETDEV_TX_BUSY;
-
- if (rt2x00mac_tx_rts_cts(rt2x00dev, ring, skb, control))
- return NETDEV_TX_BUSY;
+ if ((tx_info->flags & (IEEE80211_TX_CTL_USE_RTS_CTS |
+ IEEE80211_TX_CTL_USE_CTS_PROTECT)) &&
+ !rt2x00dev->ops->hw->set_rts_threshold) {
+ if (rt2x00queue_available(queue) <= 1)
+ goto exit_fail;
+
+ if (rt2x00mac_tx_rts_cts(rt2x00dev, queue, skb))
+ goto exit_fail;
}
- if (rt2x00dev->ops->lib->write_tx_data(rt2x00dev, ring, skb, control))
- return NETDEV_TX_BUSY;
+ if (rt2x00queue_write_tx_frame(queue, skb))
+ goto exit_fail;
+
+ if (rt2x00queue_threshold(queue))
+ ieee80211_stop_queue(rt2x00dev->hw, qid);
- if (rt2x00dev->ops->lib->kick_tx_queue)
- rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, control->queue);
+ return NETDEV_TX_OK;
+ exit_fail:
+ ieee80211_stop_queue(rt2x00dev->hw, qid);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
EXPORT_SYMBOL_GPL(rt2x00mac_tx);
int rt2x00mac_start(struct ieee80211_hw *hw)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- int status;
- if (test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
return 0;
- /*
- * If this is the first interface which is added,
- * we should load the firmware now.
- */
- if (test_bit(REQUIRE_FIRMWARE, &rt2x00dev->flags)) {
- status = rt2x00lib_load_firmware(rt2x00dev);
- if (status)
- return status;
- }
-
- /*
- * Initialize the device.
- */
- status = rt2x00lib_initialize(rt2x00dev);
- if (status)
- return status;
-
- /*
- * Enable radio.
- */
- status = rt2x00lib_enable_radio(rt2x00dev);
- if (status) {
- rt2x00lib_uninitialize(rt2x00dev);
- return status;
- }
-
- return 0;
+ return rt2x00lib_start(rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00mac_start);
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- /*
- * Perhaps we can add something smarter here,
- * but for now just disabling the radio should do.
- */
- rt2x00lib_disable_radio(rt2x00dev);
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+ return;
+
+ rt2x00lib_stop(rt2x00dev);
}
EXPORT_SYMBOL_GPL(rt2x00mac_stop);
struct ieee80211_if_init_conf *conf)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- struct interface *intf = &rt2x00dev->interface;
- int retval;
+ struct rt2x00_intf *intf = vif_to_intf(conf->vif);
+ struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, QID_BEACON);
+ struct queue_entry *entry = NULL;
+ unsigned int i;
/*
- * We only support 1 non-monitor interface.
+ * Don't allow interfaces to be added
+ * the device has disappeared.
*/
- if (conf->type != IEEE80211_IF_TYPE_MNTR && is_interface_present(intf))
- return -ENOBUFS;
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
+ !test_bit(DEVICE_STATE_STARTED, &rt2x00dev->flags))
+ return -ENODEV;
+
+ switch (conf->type) {
+ case NL80211_IFTYPE_AP:
+ /*
+ * We don't support mixed combinations of
+ * sta and ap interfaces.
+ */
+ if (rt2x00dev->intf_sta_count)
+ return -ENOBUFS;
+
+ /*
+ * Check if we exceeded the maximum amount
+ * of supported interfaces.
+ */
+ if (rt2x00dev->intf_ap_count >= rt2x00dev->ops->max_ap_intf)
+ return -ENOBUFS;
+
+ break;
+ case NL80211_IFTYPE_STATION:
+ case NL80211_IFTYPE_ADHOC:
+ /*
+ * We don't support mixed combinations of
+ * sta and ap interfaces.
+ */
+ if (rt2x00dev->intf_ap_count)
+ return -ENOBUFS;
+
+ /*
+ * Check if we exceeded the maximum amount
+ * of supported interfaces.
+ */
+ if (rt2x00dev->intf_sta_count >= rt2x00dev->ops->max_sta_intf)
+ return -ENOBUFS;
+
+ break;
+ default:
+ return -EINVAL;
+ }
/*
- * HACK: Placeholder until start/stop handler has been
- * added to the mac80211 callback functions structure.
+ * Loop through all beacon queues to find a free
+ * entry. Since there are as much beacon entries
+ * as the maximum interfaces, this search shouldn't
+ * fail.
*/
- retval = rt2x00mac_start(hw);
- if (retval)
- return retval;
+ for (i = 0; i < queue->limit; i++) {
+ entry = &queue->entries[i];
+ if (!test_and_set_bit(ENTRY_BCN_ASSIGNED, &entry->flags))
+ break;
+ }
+
+ if (unlikely(i == queue->limit))
+ return -ENOBUFS;
/*
- * We support muliple monitor mode interfaces.
- * All we need to do is increase the monitor_count.
+ * We are now absolutely sure the interface can be created,
+ * increase interface count and start initialization.
*/
- if (conf->type == IEEE80211_IF_TYPE_MNTR) {
- intf->monitor_count++;
- } else {
- intf->id = conf->if_id;
- intf->type = conf->type;
- if (conf->type == IEEE80211_IF_TYPE_AP)
- memcpy(&intf->bssid, conf->mac_addr, ETH_ALEN);
- memcpy(&intf->mac, conf->mac_addr, ETH_ALEN);
- intf->filter = 0;
- }
+
+ if (conf->type == NL80211_IFTYPE_AP)
+ rt2x00dev->intf_ap_count++;
+ else
+ rt2x00dev->intf_sta_count++;
+
+ spin_lock_init(&intf->lock);
+ spin_lock_init(&intf->seqlock);
+ intf->beacon = entry;
+
+ if (conf->type == NL80211_IFTYPE_AP)
+ memcpy(&intf->bssid, conf->mac_addr, ETH_ALEN);
+ memcpy(&intf->mac, conf->mac_addr, ETH_ALEN);
/*
- * Configure interface.
* The MAC adddress must be configured after the device
- * has been initialized. Else the device can reset the
- * MAC registers.
+ * has been initialized. Otherwise the device can reset
+ * the MAC registers.
+ */
+ rt2x00lib_config_intf(rt2x00dev, intf, conf->type, intf->mac, NULL);
+
+ /*
+ * Some filters depend on the current working mode. We can force
+ * an update during the next configure_filter() run by mac80211 by
+ * resetting the current packet_filter state.
*/
- rt2x00lib_config_mac_addr(rt2x00dev, intf->mac);
- rt2x00lib_config_type(rt2x00dev, conf->type);
- rt2x00lib_config_packet_filter(rt2x00dev, intf->filter);
+ rt2x00dev->packet_filter = 0;
return 0;
}
struct ieee80211_if_init_conf *conf)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- struct interface *intf = &rt2x00dev->interface;
+ struct rt2x00_intf *intf = vif_to_intf(conf->vif);
/*
- * We only support 1 non-monitor interface.
+ * Don't allow interfaces to be remove while
+ * either the device has disappeared or when
+ * no interface is present.
*/
- if (conf->type != IEEE80211_IF_TYPE_MNTR && !is_interface_present(intf))
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags) ||
+ (conf->type == NL80211_IFTYPE_AP && !rt2x00dev->intf_ap_count) ||
+ (conf->type != NL80211_IFTYPE_AP && !rt2x00dev->intf_sta_count))
return;
+ if (conf->type == NL80211_IFTYPE_AP)
+ rt2x00dev->intf_ap_count--;
+ else
+ rt2x00dev->intf_sta_count--;
+
/*
- * When removing an monitor interface, decrease monitor_count.
- * For non-monitor interfaces, all interface data needs to be reset.
+ * Release beacon entry so it is available for
+ * new interfaces again.
*/
- if (conf->type == IEEE80211_IF_TYPE_MNTR) {
- intf->monitor_count--;
- } else if (intf->type == conf->type) {
- intf->id = 0;
- intf->type = INVALID_INTERFACE;
- memset(&intf->bssid, 0x00, ETH_ALEN);
- memset(&intf->mac, 0x00, ETH_ALEN);
- intf->filter = 0;
- }
+ clear_bit(ENTRY_BCN_ASSIGNED, &intf->beacon->flags);
/*
* Make sure the bssid and mac address registers
* are cleared to prevent false ACKing of frames.
*/
- rt2x00lib_config_mac_addr(rt2x00dev, intf->mac);
- rt2x00lib_config_bssid(rt2x00dev, intf->bssid);
- rt2x00lib_config_type(rt2x00dev, intf->type);
-
- /*
- * HACK: Placeholder untill start/stop handler has been
- * added to the mac80211 callback functions structure.
- */
- rt2x00mac_stop(hw);
+ rt2x00lib_config_intf(rt2x00dev, intf,
+ NL80211_IFTYPE_UNSPECIFIED, NULL, NULL);
}
EXPORT_SYMBOL_GPL(rt2x00mac_remove_interface);
-int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf)
+int rt2x00mac_config(struct ieee80211_hw *hw, u32 changed)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
+ struct ieee80211_conf *conf = &hw->conf;
+ int radio_on;
+ int status;
/*
- * If the device is not initialized we shouldn't accept
- * any configuration changes. Mac80211 might be calling
- * this function while we are trying to remove the device
- * or perhaps suspending it.
+ * Mac80211 might be calling this function while we are trying
+ * to remove the device or perhaps suspending it.
*/
- if (!test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
return 0;
/*
- * Check if we need to disable the radio,
- * if this is not the case, at least the RX must be disabled.
+ * Only change device state when the radio is enabled. It does not
+ * matter what parameters we have configured when the radio is disabled
+ * because we won't be able to send or receive anyway. Also note that
+ * some configuration parameters (e.g. channel and antenna values) can
+ * only be set when the radio is enabled.
*/
- if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags)) {
- if (!conf->radio_enabled)
- rt2x00lib_disable_radio(rt2x00dev);
- else
- rt2x00lib_toggle_rx(rt2x00dev, 0);
- }
-
- rt2x00lib_config(rt2x00dev, conf);
+ radio_on = test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags);
+ if (conf->radio_enabled) {
+ /* For programming the values, we have to turn RX off */
+ rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_OFF);
+
+ /* Enable the radio */
+ status = rt2x00lib_enable_radio(rt2x00dev);
+ if (unlikely(status))
+ return status;
- /*
- * If promisc mode cannot be configured in irq context,
- * then it is now the time to configure it.
- */
- if (test_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags))
- rt2x00lib_config_packet_filter(rt2x00dev,
- rt2x00dev->interface.filter);
+ /*
+ * When we've just turned on the radio, we want to reprogram
+ * everything to ensure a consistent state
+ */
+ rt2x00lib_config(rt2x00dev, conf, !radio_on);
- /*
- * Reenable RX only if the radio should be on.
- */
- if (test_bit(DEVICE_ENABLED_RADIO, &rt2x00dev->flags))
- rt2x00lib_toggle_rx(rt2x00dev, 1);
- else if (conf->radio_enabled)
- return rt2x00lib_enable_radio(rt2x00dev);
+ /* Turn RX back on */
+ rt2x00lib_toggle_rx(rt2x00dev, STATE_RADIO_RX_ON);
+ } else {
+ /* Disable the radio */
+ rt2x00lib_disable_radio(rt2x00dev);
+ }
return 0;
}
EXPORT_SYMBOL_GPL(rt2x00mac_config);
-int rt2x00mac_config_interface(struct ieee80211_hw *hw, int if_id,
+int rt2x00mac_config_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_if_conf *conf)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- struct interface *intf = &rt2x00dev->interface;
- int status;
+ struct rt2x00_intf *intf = vif_to_intf(vif);
+ int update_bssid = 0;
+ int status = 0;
/*
- * If the device is not initialized we shouldn't accept
- * any configuration changes. Mac80211 might be calling
- * this function while we are trying to remove the device
- * or perhaps suspending it.
+ * Mac80211 might be calling this function while we are trying
+ * to remove the device or perhaps suspending it.
*/
- if (!test_bit(DEVICE_INITIALIZED, &rt2x00dev->flags))
+ if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
return 0;
- /*
- * Monitor mode does not need configuring.
- * If the given type does not match the configured type,
- * there has been a problem.
- */
- if (conf->type == IEEE80211_IF_TYPE_MNTR)
- return 0;
- else if (conf->type != intf->type)
- return -EINVAL;
+ spin_lock(&intf->lock);
/*
- * If the interface does not work in master mode,
- * then the bssid value in the interface structure
- * should now be set.
+ * conf->bssid can be NULL if coming from the internal
+ * beacon update routine.
*/
- if (conf->type != IEEE80211_IF_TYPE_AP)
+ if (conf->changed & IEEE80211_IFCC_BSSID && conf->bssid) {
+ update_bssid = 1;
memcpy(&intf->bssid, conf->bssid, ETH_ALEN);
- rt2x00lib_config_bssid(rt2x00dev, intf->bssid);
+ }
+
+ spin_unlock(&intf->lock);
/*
- * We only need to initialize the beacon when master mode is enabled.
+ * Call rt2x00_config_intf() outside of the spinlock context since
+ * the call will sleep for USB drivers. By using the ieee80211_if_conf
+ * values as arguments we make keep access to rt2x00_intf thread safe
+ * even without the lock.
*/
- if (conf->type != IEEE80211_IF_TYPE_AP || !conf->beacon)
- return 0;
+ rt2x00lib_config_intf(rt2x00dev, intf, vif->type, NULL,
+ update_bssid ? conf->bssid : NULL);
- status = rt2x00dev->ops->hw->beacon_update(rt2x00dev->hw,
- conf->beacon,
- conf->beacon_control);
- if (status)
- dev_kfree_skb(conf->beacon);
+ /*
+ * Update the beacon.
+ */
+ if (conf->changed & IEEE80211_IFCC_BEACON)
+ status = rt2x00queue_update_beacon(rt2x00dev, vif);
return status;
}
EXPORT_SYMBOL_GPL(rt2x00mac_config_interface);
-void rt2x00mac_set_multicast_list(struct ieee80211_hw *hw,
- unsigned short flags, int mc_count)
+void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags,
+ int mc_count, struct dev_addr_list *mc_list)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
/*
- * Check if the new state is different then the old state.
+ * Mask off any flags we are going to ignore
+ * from the total_flags field.
+ */
+ *total_flags &=
+ FIF_ALLMULTI |
+ FIF_FCSFAIL |
+ FIF_PLCPFAIL |
+ FIF_CONTROL |
+ FIF_OTHER_BSS |
+ FIF_PROMISC_IN_BSS;
+
+ /*
+ * Apply some rules to the filters:
+ * - Some filters imply different filters to be set.
+ * - Some things we can't filter out at all.
+ * - Multicast filter seems to kill broadcast traffic so never use it.
*/
- if (rt2x00dev->interface.filter == flags)
+ *total_flags |= FIF_ALLMULTI;
+ if (*total_flags & FIF_OTHER_BSS ||
+ *total_flags & FIF_PROMISC_IN_BSS)
+ *total_flags |= FIF_PROMISC_IN_BSS | FIF_OTHER_BSS;
+
+ /*
+ * Check if there is any work left for us.
+ */
+ if (rt2x00dev->packet_filter == *total_flags)
return;
+ rt2x00dev->packet_filter = *total_flags;
- rt2x00dev->interface.filter = flags;
+ if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags))
+ rt2x00dev->ops->lib->config_filter(rt2x00dev, *total_flags);
+ else
+ queue_work(rt2x00dev->hw->workqueue, &rt2x00dev->filter_work);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_configure_filter);
+
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ const u8 *local_address, const u8 *address,
+ struct ieee80211_key_conf *key)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ int (*set_key) (struct rt2x00_dev *rt2x00dev,
+ struct rt2x00lib_crypto *crypto,
+ struct ieee80211_key_conf *key);
+ struct rt2x00lib_crypto crypto;
+
+ if (!test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags))
+ return -EOPNOTSUPP;
+ else if (key->keylen > 32)
+ return -ENOSPC;
+
+ memset(&crypto, 0, sizeof(crypto));
/*
- * Raise the pending bit to indicate the
- * packet filter should be updated.
+ * When in STA mode, bssidx is always 0 otherwise local_address[5]
+ * contains the bss number, see BSS_ID_MASK comments for details.
*/
- __set_bit(PACKET_FILTER_PENDING, &rt2x00dev->flags);
+ if (rt2x00dev->intf_sta_count)
+ crypto.bssidx = 0;
+ else
+ crypto.bssidx =
+ local_address[5] & (rt2x00dev->ops->max_ap_intf - 1);
+
+ crypto.cipher = rt2x00crypto_key_to_cipher(key);
+ if (crypto.cipher == CIPHER_NONE)
+ return -EOPNOTSUPP;
+
+ crypto.cmd = cmd;
+ crypto.address = address;
+
+ if (crypto.cipher == CIPHER_TKIP) {
+ if (key->keylen > NL80211_TKIP_DATA_OFFSET_ENCR_KEY)
+ memcpy(&crypto.key,
+ &key->key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY],
+ sizeof(crypto.key));
+
+ if (key->keylen > NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
+ memcpy(&crypto.tx_mic,
+ &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
+ sizeof(crypto.tx_mic));
+
+ if (key->keylen > NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY)
+ memcpy(&crypto.rx_mic,
+ &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
+ sizeof(crypto.rx_mic));
+ } else
+ memcpy(&crypto.key, &key->key[0], key->keylen);
/*
- * Check if Packet filter actions are allowed in
- * atomic context. If not, raise the pending flag and
- * let it be.
+ * Each BSS has a maximum of 4 shared keys.
+ * Shared key index values:
+ * 0) BSS0 key0
+ * 1) BSS0 key1
+ * ...
+ * 4) BSS1 key0
+ * ...
+ * 8) BSS2 key0
+ * ...
+ * Both pairwise as shared key indeces are determined by
+ * driver. This is required because the hardware requires
+ * keys to be assigned in correct order (When key 1 is
+ * provided but key 0 is not, then the key is not found
+ * by the hardware during RX).
*/
- if (!test_bit(PACKET_FILTER_SCHEDULED, &rt2x00dev->flags) ||
- !in_atomic())
- rt2x00lib_config_packet_filter(rt2x00dev, flags);
+ if (cmd == SET_KEY)
+ key->hw_key_idx = 0;
+
+ if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+ set_key = rt2x00dev->ops->lib->config_pairwise_key;
+ else
+ set_key = rt2x00dev->ops->lib->config_shared_key;
+
+ if (!set_key)
+ return -EOPNOTSUPP;
+
+ return set_key(rt2x00dev, &crypto, key);
}
-EXPORT_SYMBOL_GPL(rt2x00mac_set_multicast_list);
+EXPORT_SYMBOL_GPL(rt2x00mac_set_key);
+#endif /* CONFIG_RT2X00_LIB_CRYPTO */
int rt2x00mac_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
struct rt2x00_dev *rt2x00dev = hw->priv;
unsigned int i;
- for (i = 0; i < hw->queues; i++)
- memcpy(&stats->data[i], &rt2x00dev->tx[i].stats,
- sizeof(rt2x00dev->tx[i].stats));
+ for (i = 0; i < rt2x00dev->ops->tx_queues; i++) {
+ stats[i].len = rt2x00dev->tx[i].length;
+ stats[i].limit = rt2x00dev->tx[i].limit;
+ stats[i].count = rt2x00dev->tx[i].count;
+ }
return 0;
}
EXPORT_SYMBOL_GPL(rt2x00mac_get_tx_stats);
-int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue,
+void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf,
+ u32 changes)
+{
+ struct rt2x00_dev *rt2x00dev = hw->priv;
+ struct rt2x00_intf *intf = vif_to_intf(vif);
+ unsigned int delayed = 0;
+
+ /*
+ * When the association status has changed we must reset the link
+ * tuner counter. This is because some drivers determine if they
+ * should perform link tuning based on the number of seconds
+ * while associated or not associated.
+ */
+ if (changes & BSS_CHANGED_ASSOC) {
+ rt2x00dev->link.count = 0;
+
+ if (bss_conf->assoc)
+ rt2x00dev->intf_associated++;
+ else
+ rt2x00dev->intf_associated--;
+
+ if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags))
+ rt2x00leds_led_assoc(rt2x00dev,
+ !!rt2x00dev->intf_associated);
+ else
+ delayed |= DELAYED_LED_ASSOC;
+ }
+
+ /*
+ * When the erp information has changed, we should perform
+ * additional configuration steps. For all other changes we are done.
+ */
+ if (changes & (BSS_CHANGED_ERP_PREAMBLE | BSS_CHANGED_ERP_CTS_PROT)) {
+ if (!test_bit(DRIVER_REQUIRE_SCHEDULED, &rt2x00dev->flags))
+ rt2x00lib_config_erp(rt2x00dev, intf, bss_conf);
+ else
+ delayed |= DELAYED_CONFIG_ERP;
+ }
+
+ spin_lock(&intf->lock);
+ memcpy(&intf->conf, bss_conf, sizeof(*bss_conf));
+ if (delayed) {
+ intf->delayed_flags |= delayed;
+ schedule_work(&rt2x00dev->intf_work);
+ }
+ spin_unlock(&intf->lock);
+}
+EXPORT_SYMBOL_GPL(rt2x00mac_bss_info_changed);
+
+int rt2x00mac_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
const struct ieee80211_tx_queue_params *params)
{
struct rt2x00_dev *rt2x00dev = hw->priv;
- struct data_ring *ring;
+ struct data_queue *queue;
- ring = rt2x00lib_get_ring(rt2x00dev, queue);
- if (unlikely(!ring))
+ queue = rt2x00queue_get_queue(rt2x00dev, queue_idx);
+ if (unlikely(!queue))
return -EINVAL;
/*
* The passed variables are stored as real value ((2^n)-1).
* Ralink registers require to know the bit number 'n'.
*/
- if (params->cw_min)
- ring->tx_params.cw_min = fls(params->cw_min);
+ if (params->cw_min > 0)
+ queue->cw_min = fls(params->cw_min);
else
- ring->tx_params.cw_min = 5; /* cw_min: 2^5 = 32. */
+ queue->cw_min = 5; /* cw_min: 2^5 = 32. */
- if (params->cw_max)
- ring->tx_params.cw_max = fls(params->cw_max);
+ if (params->cw_max > 0)
+ queue->cw_max = fls(params->cw_max);
else
- ring->tx_params.cw_max = 10; /* cw_min: 2^10 = 1024. */
+ queue->cw_max = 10; /* cw_min: 2^10 = 1024. */
- if (params->aifs)
- ring->tx_params.aifs = params->aifs;
- else
- ring->tx_params.aifs = 2;
+ queue->aifs = params->aifs;
+ queue->txop = params->txop;
INFO(rt2x00dev,
- "Configured TX ring %d - CWmin: %d, CWmax: %d, Aifs: %d.\n",
- queue, ring->tx_params.cw_min, ring->tx_params.cw_max,
- ring->tx_params.aifs);
+ "Configured TX queue %d - CWmin: %d, CWmax: %d, Aifs: %d, TXop: %d.\n",
+ queue_idx, queue->cw_min, queue->cw_max, queue->aifs, queue->txop);
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff