/*
* REPLY_ADD_STA = 0x18 (response)
*/
-struct iwl4965_add_sta_resp {
+struct iwl_add_sta_resp {
u8 status; /* ADD_STA_* */
} __attribute__ ((packed));
+#define REM_STA_SUCCESS_MSK 0x1
+/*
+ * REPLY_REM_STA = 0x19 (response)
+ */
+struct iwl_rem_sta_resp {
+ u8 status;
+} __attribute__ ((packed));
+
+/*
+ * REPLY_REM_STA = 0x19 (command)
+ */
+struct iwl_rem_sta_cmd {
+ u8 num_sta; /* number of removed stations */
+ u8 reserved[3];
+ u8 addr[ETH_ALEN]; /* MAC addr of the first station */
+ u8 reserved2[2];
+} __attribute__ ((packed));
+
/*
* REPLY_WEP_KEY = 0x20
*/
struct iwl_error_resp err_resp;
struct iwl4965_card_state_notif card_state_notif;
struct iwl4965_beacon_notif beacon_status;
- struct iwl4965_add_sta_resp add_sta;
+ struct iwl_add_sta_resp add_sta;
+ struct iwl_rem_sta_resp rem_sta;
struct iwl4965_sleep_notification sleep_notif;
struct iwl4965_spectrum_resp spectrum;
struct iwl4965_notif_statistics stats;
#include "iwl-io.h"
#include "iwl-helpers.h"
+
+#define IWL_STA_DRIVER_ACTIVE 0x1 /* ucode entry is active */
+#define IWL_STA_UCODE_ACTIVE 0x2 /* ucode entry is active */
+
u8 iwl_find_station(struct iwl_priv *priv, const u8 *addr)
{
int i;
}
EXPORT_SYMBOL(iwl_add_station_flags);
+
+static int iwl_sta_ucode_deactivate(struct iwl_priv *priv, const char *addr)
+{
+ unsigned long flags;
+ u8 sta_id;
+ DECLARE_MAC_BUF(mac);
+
+ sta_id = iwl_find_station(priv, addr);
+ if (sta_id != IWL_INVALID_STATION) {
+ IWL_DEBUG_ASSOC("Removed STA from Ucode: %s\n",
+ print_mac(mac, addr));
+ spin_lock_irqsave(&priv->sta_lock, flags);
+ priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
+ memset(&priv->stations[sta_id], 0,
+ sizeof(struct iwl_station_entry));
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return 0;
+ }
+ return -EINVAL;
+}
+
+static int iwl_remove_sta_callback(struct iwl_priv *priv,
+ struct iwl_cmd *cmd, struct sk_buff *skb)
+{
+ struct iwl_rx_packet *res = NULL;
+ const char *addr = cmd->cmd.rm_sta.addr;
+
+ if (!skb) {
+ IWL_ERROR("Error: Response NULL in REPLY_REMOVE_STA.\n");
+ return 1;
+ }
+
+ res = (struct iwl_rx_packet *)skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_REMOVE_STA (0x%08X)\n",
+ res->hdr.flags);
+ return 1;
+ }
+
+ switch (res->u.rem_sta.status) {
+ case REM_STA_SUCCESS_MSK:
+ iwl_sta_ucode_deactivate(priv, addr);
+ break;
+ default:
+ break;
+ }
+
+ /* We didn't cache the SKB; let the caller free it */
+ return 1;
+}
+
+static int iwl_send_remove_station(struct iwl_priv *priv, const u8 *addr,
+ u8 flags)
+{
+ struct iwl_rx_packet *res = NULL;
+ int ret;
+
+ struct iwl_rem_sta_cmd rm_sta_cmd;
+
+ struct iwl_host_cmd cmd = {
+ .id = REPLY_REMOVE_STA,
+ .len = sizeof(struct iwl_rem_sta_cmd),
+ .meta.flags = flags,
+ .data = &rm_sta_cmd,
+ };
+
+ memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
+ rm_sta_cmd.num_sta = 1;
+ memcpy(&rm_sta_cmd.addr, addr , ETH_ALEN);
+
+ if (flags & CMD_ASYNC)
+ cmd.meta.u.callback = iwl_remove_sta_callback;
+ else
+ cmd.meta.flags |= CMD_WANT_SKB;
+ ret = iwl_send_cmd(priv, &cmd);
+
+ if (ret || (flags & CMD_ASYNC))
+ return ret;
+
+ res = (struct iwl_rx_packet *)cmd.meta.u.skb->data;
+ if (res->hdr.flags & IWL_CMD_FAILED_MSK) {
+ IWL_ERROR("Bad return from REPLY_REMOVE_STA (0x%08X)\n",
+ res->hdr.flags);
+ ret = -EIO;
+ }
+
+ if (!ret) {
+ switch (res->u.rem_sta.status) {
+ case REM_STA_SUCCESS_MSK:
+ iwl_sta_ucode_deactivate(priv, addr);
+ IWL_DEBUG_ASSOC("REPLY_REMOVE_STA PASSED\n");
+ break;
+ default:
+ ret = -EIO;
+ IWL_ERROR("REPLY_REMOVE_STA failed\n");
+ break;
+ }
+ }
+
+ priv->alloc_rxb_skb--;
+ dev_kfree_skb_any(cmd.meta.u.skb);
+
+ return ret;
+}
+/**
+ * iwl_remove_station - Remove driver's knowledge of station.
+ *
+ */
+u8 iwl_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
+{
+ int index = IWL_INVALID_STATION;
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&priv->sta_lock, flags);
+
+ if (is_ap)
+ index = IWL_AP_ID;
+ else if (is_broadcast_ether_addr(addr))
+ index = priv->hw_params.bcast_sta_id;
+ else
+ for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
+ if (priv->stations[i].used &&
+ !compare_ether_addr(priv->stations[i].sta.sta.addr,
+ addr)) {
+ index = i;
+ break;
+ }
+
+ if (unlikely(index == IWL_INVALID_STATION))
+ goto out;
+
+ if (priv->stations[index].used) {
+ priv->stations[index].used = 0;
+ priv->num_stations--;
+ }
+
+ BUG_ON(priv->num_stations < 0);
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ iwl_send_remove_station(priv, addr, CMD_ASYNC);
+ return index;
+out:
+ spin_unlock_irqrestore(&priv->sta_lock, flags);
+ return 0;
+}
+EXPORT_SYMBOL(iwl_remove_station);
int iwl_get_free_ucode_key_index(struct iwl_priv *priv)
{
int i;
/**************************************************************/
-#if 0 /* temporary disable till we add real remove station */
-/**
- * iwl4965_remove_station - Remove driver's knowledge of station.
- *
- * NOTE: This does not remove station from device's station table.
- */
-static u8 iwl4965_remove_station(struct iwl_priv *priv, const u8 *addr, int is_ap)
-{
- int index = IWL_INVALID_STATION;
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- if (is_ap)
- index = IWL_AP_ID;
- else if (is_broadcast_ether_addr(addr))
- index = priv->hw_params.bcast_sta_id;
- else
- for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++)
- if (priv->stations[i].used &&
- !compare_ether_addr(priv->stations[i].sta.sta.addr,
- addr)) {
- index = i;
- break;
- }
-
- if (unlikely(index == IWL_INVALID_STATION))
- goto out;
-
- if (priv->stations[index].used) {
- priv->stations[index].used = 0;
- priv->num_stations--;
- }
-
- BUG_ON(priv->num_stations < 0);
-
-out:
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
-}
-#endif
-
static void iwl4965_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt)
return rc;
}
+ iwl_remove_station(priv, iwl_bcast_addr, 0);
iwlcore_clear_stations_table(priv);
if (!priv->error_recovering)
projects / linux-2.6 / commitdiff