This patch contains only code removal, no code has been modified.
Signed-off-by: Kalle Valo <kalle.valo@xxxxxx>
---
drivers/net/wireless/at76_usb.c | 3605 ---------------------------------------
drivers/net/wireless/at76_usb.h | 215 --
2 files changed, 14 insertions(+), 3806 deletions(-)
diff --git a/drivers/net/wireless/at76_usb.c b/drivers/net/wireless/at76_usb.c
index 4832198..8db15bd 100644
--- a/drivers/net/wireless/at76_usb.c
+++ b/drivers/net/wireless/at76_usb.c
@@ -272,16 +272,6 @@ static const long channel_frequency[] = {
static const char *const preambles[] = { "long", "short", "auto" };
-static const char *const mac_states[] = {
- [MAC_INIT] = "INIT",
- [MAC_SCANNING] = "SCANNING",
- [MAC_AUTH] = "AUTH",
- [MAC_ASSOC] = "ASSOC",
- [MAC_JOINING] = "JOINING",
- [MAC_CONNECTED] = "CONNECTED",
- [MAC_OWN_IBSS] = "OWN_IBSS"
-};
-
/* Firmware download */
/* DFU states */
#define STATE_IDLE 0x00
@@ -507,41 +497,6 @@ exit:
return ret;
}
-/* Report that the scan results are ready */
-static inline void at76_iwevent_scan_complete(struct net_device *netdev)
-{
- union iwreq_data wrqu;
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- wireless_send_event(netdev, SIOCGIWSCAN, &wrqu, NULL);
- at76_dbg(DBG_WE_EVENTS, "%s: SIOCGIWSCAN sent", netdev->name);
-}
-
-static inline void at76_iwevent_bss_connect(struct net_device *netdev,
- u8 *bssid)
-{
- union iwreq_data wrqu;
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN);
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL);
- at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name,
- __func__);
-}
-
-static inline void at76_iwevent_bss_disconnect(struct net_device *netdev)
-{
- union iwreq_data wrqu;
- wrqu.data.length = 0;
- wrqu.data.flags = 0;
- memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL);
- at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name,
- __func__);
-}
-
#define HEX2STR_BUFFERS 4
#define HEX2STR_MAX_LEN 64
#define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10)
@@ -613,37 +568,6 @@ static void at76_ledtrig_tx_activity(void)
mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
}
-/* Check if the given ssid is hidden */
-static inline int at76_is_hidden_ssid(u8 *ssid, int length)
-{
- static const u8 zeros[32];
-
- if (length == 0)
- return 1;
-
- if (length == 1 && ssid[0] == ' ')
- return 1;
-
- return (memcmp(ssid, zeros, length) == 0);
-}
-
-static inline void at76_free_bss_list(struct at76_priv *priv)
-{
- struct list_head *next, *ptr;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->bss_list_spinlock, flags);
-
- priv->curr_bss = NULL;
-
- list_for_each_safe(ptr, next, &priv->bss_list) {
- list_del(ptr);
- kfree(list_entry(ptr, struct bss_info, list));
- }
-
- spin_unlock_irqrestore(&priv->bss_list_spinlock, flags);
-}
-
static int at76_remap(struct usb_device *udev)
{
int ret;
@@ -1306,103 +1230,6 @@ exit:
kfree(m);
}
-static int at76_get_current_bssid(struct at76_priv *priv)
-{
- int ret = 0;
- struct mib_mac_mgmt *mac_mgmt =
- kmalloc(sizeof(struct mib_mac_mgmt), GFP_KERNEL);
-
- if (!mac_mgmt) {
- ret = -ENOMEM;
- goto exit;
- }
-
- ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, mac_mgmt,
- sizeof(struct mib_mac_mgmt));
- if (ret < 0) {
- printk(KERN_ERR "%s: at76_get_mib failed: %d\n",
- wiphy_name(priv->hw->wiphy), ret);
- goto error;
- }
- memcpy(priv->bssid, mac_mgmt->current_bssid, ETH_ALEN);
- printk(KERN_INFO "%s: using BSSID %s\n", wiphy_name(priv->hw->wiphy),
- mac2str(priv->bssid));
-error:
- kfree(mac_mgmt);
-exit:
- return ret;
-}
-
-static int at76_get_current_channel(struct at76_priv *priv)
-{
- int ret = 0;
- struct mib_phy *phy = kmalloc(sizeof(struct mib_phy), GFP_KERNEL);
-
- if (!phy) {
- ret = -ENOMEM;
- goto exit;
- }
- ret = at76_get_mib(priv->udev, MIB_PHY, phy, sizeof(struct mib_phy));
- if (ret < 0) {
- printk(KERN_ERR "%s: at76_get_mib(MIB_PHY) failed: %d\n",
- wiphy_name(priv->hw->wiphy), ret);
- goto error;
- }
- priv->channel = phy->channel_id;
-error:
- kfree(phy);
-exit:
- return ret;
-}
-
-/**
- * at76_start_scan - start a scan
- *
- * @use_essid - use the configured ESSID in non passive mode
- */
-static int at76_start_scan(struct at76_priv *priv, int use_essid)
-{
- struct at76_req_scan scan;
-
- memset(&scan, 0, sizeof(struct at76_req_scan));
- memset(scan.bssid, 0xff, ETH_ALEN);
-
- if (use_essid) {
- memcpy(scan.essid, priv->essid, IW_ESSID_MAX_SIZE);
- scan.essid_size = priv->essid_size;
- } else
- scan.essid_size = 0;
-
- /* jal: why should we start at a certain channel? we do scan the whole
- range allowed by reg domain. */
- scan.channel = priv->channel;
-
- /* atmelwlandriver differs between scan type 0 and 1 (active/passive)
- For ad-hoc mode, it uses type 0 only. */
- scan.scan_type = priv->scan_mode;
-
- /* INFO: For probe_delay, not multiplying by 1024 as this will be
- slightly less than min_channel_time
- (per spec: probe delay < min. channel time) */
- scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
- scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
- scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000);
- scan.international_scan = 0;
-
- /* other values are set to 0 for type 0 */
-
- at76_dbg(DBG_PROGRESS, "%s: start_scan (use_essid = %d, intl = %d, "
- "channel = %d, probe_delay = %d, scan_min_time = %d, "
- "scan_max_time = %d)",
- priv->netdev->name, use_essid,
- scan.international_scan, scan.channel,
- le16_to_cpu(scan.probe_delay),
- le16_to_cpu(scan.min_channel_time),
- le16_to_cpu(scan.max_channel_time));
-
- return at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
-}
-
/* Enable monitor mode */
static int at76_start_monitor(struct at76_priv *priv)
{
@@ -1423,86 +1250,6 @@ static int at76_start_monitor(struct at76_priv *priv)
return ret;
}
-static int at76_start_ibss(struct at76_priv *priv)
-{
- struct at76_req_ibss bss;
- int ret;
-
- WARN_ON(priv->mac_state != MAC_OWN_IBSS);
- if (priv->mac_state != MAC_OWN_IBSS)
- return -EBUSY;
-
- memset(&bss, 0, sizeof(struct at76_req_ibss));
- memset(bss.bssid, 0xff, ETH_ALEN);
- memcpy(bss.essid, priv->essid, IW_ESSID_MAX_SIZE);
- bss.essid_size = priv->essid_size;
- bss.bss_type = ADHOC_MODE;
- bss.channel = priv->channel;
-
- ret = at76_set_card_command(priv->udev, CMD_START_IBSS, &bss,
- sizeof(struct at76_req_ibss));
- if (ret < 0) {
- printk(KERN_ERR "%s: start_ibss failed: %d\n",
- priv->netdev->name, ret);
- return ret;
- }
-
- ret = at76_wait_completion(priv, CMD_START_IBSS);
- if (ret != CMD_STATUS_COMPLETE) {
- printk(KERN_ERR "%s: start_ibss failed to complete, %d\n",
- priv->netdev->name, ret);
- return ret;
- }
-
- ret = at76_get_current_bssid(priv);
- if (ret < 0)
- return ret;
-
- ret = at76_get_current_channel(priv);
- if (ret < 0)
- return ret;
-
- /* not sure what this is good for ??? */
- priv->mib_buf.type = MIB_MAC_MGMT;
- priv->mib_buf.size = 1;
- priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change);
- priv->mib_buf.data.byte = 0;
-
- ret = at76_set_mib(priv, &priv->mib_buf);
- if (ret < 0) {
- printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n",
- priv->netdev->name, ret);
- return ret;
- }
-
- netif_carrier_on(priv->netdev);
- netif_start_queue(priv->netdev);
- return 0;
-}
-
-/* Request card to join BSS in managed or ad-hoc mode */
-static int at76_join_bss(struct at76_priv *priv, struct bss_info *ptr)
-{
- struct at76_req_join join;
-
- BUG_ON(!ptr);
-
- memset(&join, 0, sizeof(struct at76_req_join));
- memcpy(join.bssid, ptr->bssid, ETH_ALEN);
- memcpy(join.essid, ptr->ssid, ptr->ssid_len);
- join.essid_size = ptr->ssid_len;
- join.bss_type = (priv->iw_mode == IW_MODE_ADHOC ? 1 : 2);
- join.channel = ptr->channel;
- join.timeout = cpu_to_le16(2000);
-
- at76_dbg(DBG_PROGRESS,
- "%s join addr %s ssid %s type %d ch %d timeout %d",
- priv->netdev->name, mac2str(join.bssid), join.essid,
- join.bss_type, join.channel, le16_to_cpu(join.timeout));
- return at76_set_card_command(priv->udev, CMD_JOIN, &join,
- sizeof(struct at76_req_join));
-}
-
/* Calculate padding from txbuf->wlength (which excludes the USB TX header),
likely to compensate a flaw in the AT76C503A USB part ... */
static inline int at76_calc_padding(int wlen)
@@ -1521,14 +1268,6 @@ static inline int at76_calc_padding(int wlen)
return 0;
}
-/* We are doing a lot of things here in an interrupt. Need
- a bh handler (Watching TV with a TV card is probably
- a good test: if you see flickers, we are doing too much.
- Currently I do see flickers... even with our tasklet :-( )
- Maybe because the bttv driver and usb-uhci use the same interrupt
-*/
-/* Or maybe because our BH handler is preempting bttv's BH handler.. BHs don't
- * solve everything.. (alex) */
static void at76_rx_callback(struct urb *urb)
{
struct at76_priv *priv = urb->context;
@@ -1538,1754 +1277,6 @@ static void at76_rx_callback(struct urb *urb)
return;
}
-static void at76_tx_callback(struct urb *urb)
-{
- struct at76_priv *priv = urb->context;
- struct net_device_stats *stats = &priv->stats;
- unsigned long flags;
- struct at76_tx_buffer *mgmt_buf;
- int ret;
-
- switch (urb->status) {
- case 0:
- stats->tx_packets++;
- break;
- case -ENOENT:
- case -ECONNRESET:
- /* urb has been unlinked */
- return;
- default:
- at76_dbg(DBG_URB, "%s - nonzero tx status received: %d",
- __func__, urb->status);
- stats->tx_errors++;
- break;
- }
-
- spin_lock_irqsave(&priv->mgmt_spinlock, flags);
- mgmt_buf = priv->next_mgmt_bulk;
- priv->next_mgmt_bulk = NULL;
- spin_unlock_irqrestore(&priv->mgmt_spinlock, flags);
-
- if (!mgmt_buf) {
- netif_wake_queue(priv->netdev);
- return;
- }
-
- /* we don't copy the padding bytes, but add them
- to the length */
- memcpy(priv->bulk_out_buffer, mgmt_buf,
- le16_to_cpu(mgmt_buf->wlength) + AT76_TX_HDRLEN);
- usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe,
- priv->bulk_out_buffer,
- le16_to_cpu(mgmt_buf->wlength) + mgmt_buf->padding +
- AT76_TX_HDRLEN, at76_tx_callback, priv);
- ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
- if (ret)
- printk(KERN_ERR "%s: error in tx submit urb: %d\n",
- priv->netdev->name, ret);
-
- kfree(mgmt_buf);
-}
-
-/* Send a management frame on bulk-out. txbuf->wlength must be set */
-static int at76_tx_mgmt(struct at76_priv *priv, struct at76_tx_buffer *txbuf)
-{
- unsigned long flags;
- int ret;
- int urb_status;
- void *oldbuf = NULL;
-
- netif_carrier_off(priv->netdev); /* stop netdev watchdog */
- netif_stop_queue(priv->netdev); /* stop tx data packets */
-
- spin_lock_irqsave(&priv->mgmt_spinlock, flags);
-
- urb_status = priv->tx_urb->status;
- if (urb_status == -EINPROGRESS) {
- /* cannot transmit now, put in the queue */
- oldbuf = priv->next_mgmt_bulk;
- priv->next_mgmt_bulk = txbuf;
- }
- spin_unlock_irqrestore(&priv->mgmt_spinlock, flags);
-
- if (oldbuf) {
- /* a data/mgmt tx is already pending in the URB -
- if this is no error in some situations we must
- implement a queue or silently modify the old msg */
- printk(KERN_ERR "%s: removed pending mgmt buffer %s\n",
- priv->netdev->name, hex2str(oldbuf, 64));
- kfree(oldbuf);
- return 0;
- }
-
- txbuf->tx_rate = TX_RATE_1MBIT;
- txbuf->padding = at76_calc_padding(le16_to_cpu(txbuf->wlength));
- memset(txbuf->reserved, 0, sizeof(txbuf->reserved));
-
- if (priv->next_mgmt_bulk)
- printk(KERN_ERR "%s: URB status %d, but mgmt is pending\n",
- priv->netdev->name, urb_status);
-
- at76_dbg_dump(DBG_TX_MGMT, txbuf->packet, le16_to_cpu(txbuf->wlength),
- "%s: tx mgmt: wlen %d tx_rate %d pad %d",
- priv->netdev->name, le16_to_cpu(txbuf->wlength),
- txbuf->tx_rate, txbuf->padding);
-
- /* txbuf was not consumed above -> send mgmt msg immediately */
- memcpy(priv->bulk_out_buffer, txbuf,
- le16_to_cpu(txbuf->wlength) + AT76_TX_HDRLEN);
- usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe,
- priv->bulk_out_buffer,
- le16_to_cpu(txbuf->wlength) + txbuf->padding +
- AT76_TX_HDRLEN, at76_tx_callback, priv);
- ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
- if (ret)
- printk(KERN_ERR "%s: error in tx submit urb: %d\n",
- priv->netdev->name, ret);
-
- kfree(txbuf);
-
- return ret;
-}
-
-/* Go to the next information element */
-static inline void next_ie(struct ieee80211_info_element **ie)
-{
- *ie = (struct ieee80211_info_element *)(&(*ie)->data[(*ie)->len]);
-}
-
-/* Challenge is the challenge string (in TLV format)
- we got with seq_nr 2 for shared secret authentication only and
- send in seq_nr 3 WEP encrypted to prove we have the correct WEP key;
- otherwise it is NULL */
-static int at76_auth_req(struct at76_priv *priv, struct bss_info *bss,
- int seq_nr, struct ieee80211_info_element *challenge)
-{
- struct at76_tx_buffer *tx_buffer;
- struct ieee80211_hdr_3addr *mgmt;
- struct ieee80211_auth *req;
- int buf_len = (seq_nr != 3 ? AUTH_FRAME_SIZE :
- AUTH_FRAME_SIZE + 1 + 1 + challenge->len);
-
- BUG_ON(!bss);
- BUG_ON(seq_nr == 3 && !challenge);
- tx_buffer = kmalloc(buf_len + MAX_PADDING_SIZE, GFP_ATOMIC);
- if (!tx_buffer)
- return -ENOMEM;
-
- req = (struct ieee80211_auth *)tx_buffer->packet;
- mgmt = &req->header;
-
- /* make wireless header */
- /* first auth msg is not encrypted, only the second (seq_nr == 3) */
- mgmt->frame_ctl =
- cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH |
- (seq_nr == 3 ? IEEE80211_FCTL_PROTECTED : 0));
-
- mgmt->duration_id = cpu_to_le16(0x8000);
- memcpy(mgmt->addr1, bss->bssid, ETH_ALEN);
- memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN);
- memcpy(mgmt->addr3, bss->bssid, ETH_ALEN);
- mgmt->seq_ctl = cpu_to_le16(0);
-
- req->algorithm = cpu_to_le16(priv->auth_mode);
- req->transaction = cpu_to_le16(seq_nr);
- req->status = cpu_to_le16(0);
-
- if (seq_nr == 3)
- memcpy(req->info_element, challenge, 1 + 1 + challenge->len);
-
- /* init. at76_priv tx header */
- tx_buffer->wlength = cpu_to_le16(buf_len - AT76_TX_HDRLEN);
- at76_dbg(DBG_TX_MGMT, "%s: AuthReq bssid %s alg %d seq_nr %d",
- priv->netdev->name, mac2str(mgmt->addr3),
- le16_to_cpu(req->algorithm), le16_to_cpu(req->transaction));
- if (seq_nr == 3)
- at76_dbg_dump(DBG_TX_MGMT, req->info_element, 18,
- "%s: AuthReq challenge:",
- priv->netdev->name);
-
- /* either send immediately (if no data tx is pending
- or put it in pending list */
- return at76_tx_mgmt(priv, tx_buffer);
-}
-
-static int at76_assoc_req(struct at76_priv *priv, struct bss_info *bss)
-{
- struct at76_tx_buffer *tx_buffer;
- struct ieee80211_hdr_3addr *mgmt;
- struct ieee80211_assoc_request *req;
- struct ieee80211_info_element *ie;
- char *essid;
- int essid_len;
- u16 capa;
-
- BUG_ON(!bss);
-
- tx_buffer = kmalloc(ASSOCREQ_MAX_SIZE + MAX_PADDING_SIZE, GFP_ATOMIC);
- if (!tx_buffer)
- return -ENOMEM;
-
- req = (struct ieee80211_assoc_request *)tx_buffer->packet;
- mgmt = &req->header;
- ie = req->info_element;
-
- /* make wireless header */
- mgmt->frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT |
- IEEE80211_STYPE_ASSOC_REQ);
-
- mgmt->duration_id = cpu_to_le16(0x8000);
- memcpy(mgmt->addr1, bss->bssid, ETH_ALEN);
- memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN);
- memcpy(mgmt->addr3, bss->bssid, ETH_ALEN);
- mgmt->seq_ctl = cpu_to_le16(0);
-
- /* we must set the Privacy bit in the capabilities to assure an
- Agere-based AP with optional WEP transmits encrypted frames
- to us. AP only set the Privacy bit in their capabilities
- if WEP is mandatory in the BSS! */
- capa = bss->capa;
- if (priv->wep_enabled)
- capa |= WLAN_CAPABILITY_PRIVACY;
- if (priv->preamble_type != PREAMBLE_TYPE_LONG)
- capa |= WLAN_CAPABILITY_SHORT_PREAMBLE;
- req->capability = cpu_to_le16(capa);
-
- req->listen_interval = cpu_to_le16(2 * bss->beacon_interval);
-
- /* write TLV data elements */
-
- ie->id = WLAN_EID_SSID;
- ie->len = bss->ssid_len;
- memcpy(ie->data, bss->ssid, bss->ssid_len);
- next_ie(&ie);
-
- ie->id = WLAN_EID_SUPP_RATES;
- ie->len = sizeof(hw_rates);
- memcpy(ie->data, hw_rates, sizeof(hw_rates));
- next_ie(&ie); /* ie points behind the supp_rates field */
-
- /* init. at76_priv tx header */
- tx_buffer->wlength = cpu_to_le16((u8 *)ie - (u8 *)mgmt);
-
- ie = req->info_element;
- essid = ie->data;
- essid_len = min_t(int, IW_ESSID_MAX_SIZE, ie->len);
-
- next_ie(&ie); /* points to IE of rates now */
- at76_dbg(DBG_TX_MGMT,
- "%s: AssocReq bssid %s capa 0x%04x ssid %.*s rates %s",
- priv->netdev->name, mac2str(mgmt->addr3),
- le16_to_cpu(req->capability), essid_len, essid,
- hex2str(ie->data, ie->len));
-
- /* either send immediately (if no data tx is pending
- or put it in pending list */
- return at76_tx_mgmt(priv, tx_buffer);
-}
-
-/* We got to check the bss_list for old entries */
-static void at76_bss_list_timeout(unsigned long par)
-{
- struct at76_priv *priv = (struct at76_priv *)par;
- unsigned long flags;
- struct list_head *lptr, *nptr;
- struct bss_info *ptr;
-
- spin_lock_irqsave(&priv->bss_list_spinlock, flags);
-
- list_for_each_safe(lptr, nptr, &priv->bss_list) {
-
- ptr = list_entry(lptr, struct bss_info, list);
-
- if (ptr != priv->curr_bss
- && time_after(jiffies, ptr->last_rx + BSS_LIST_TIMEOUT)) {
- at76_dbg(DBG_BSS_TABLE_RM,
- "%s: bss_list: removing old BSS %s ch %d",
- priv->netdev->name, mac2str(ptr->bssid),
- ptr->channel);
- list_del(&ptr->list);
- kfree(ptr);
- }
- }
- spin_unlock_irqrestore(&priv->bss_list_spinlock, flags);
- /* restart the timer */
- mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT);
-}
-
-static inline void at76_set_mac_state(struct at76_priv *priv,
- enum mac_state mac_state)
-{
- at76_dbg(DBG_MAC_STATE, "%s state: %s", priv->netdev->name,
- mac_states[mac_state]);
- priv->mac_state = mac_state;
-}
-
-static void at76_dump_bss_table(struct at76_priv *priv)
-{
- struct bss_info *ptr;
- unsigned long flags;
- struct list_head *lptr;
-
- spin_lock_irqsave(&priv->bss_list_spinlock, flags);
-
- at76_dbg(DBG_BSS_TABLE, "%s BSS table (curr=%p):", priv->netdev->name,
- priv->curr_bss);
-
- list_for_each(lptr, &priv->bss_list) {
- ptr = list_entry(lptr, struct bss_info, list);
- at76_dbg(DBG_BSS_TABLE, "0x%p: bssid %s channel %d ssid %.*s "
- "(%s) capa 0x%04x rates %s rssi %d link %d noise %d",
- ptr, mac2str(ptr->bssid), ptr->channel, ptr->ssid_len,
- ptr->ssid, hex2str(ptr->ssid, ptr->ssid_len),
- ptr->capa, hex2str(ptr->rates, ptr->rates_len),
- ptr->rssi, ptr->link_qual, ptr->noise_level);
- }
- spin_unlock_irqrestore(&priv->bss_list_spinlock, flags);
-}
-
-/* Called upon successful association to mark interface as connected */
-static void at76_work_assoc_done(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- work_assoc_done);
-
- mutex_lock(&priv->mtx);
-
- WARN_ON(priv->mac_state != MAC_ASSOC);
- WARN_ON(!priv->curr_bss);
- if (priv->mac_state != MAC_ASSOC || !priv->curr_bss)
- goto exit;
-
- if (priv->iw_mode == IW_MODE_INFRA) {
- if (priv->pm_mode != AT76_PM_OFF) {
- /* calculate the listen interval in units of
- beacon intervals of the curr_bss */
- u32 pm_period_beacon = (priv->pm_period >> 10) /
- priv->curr_bss->beacon_interval;
-
- pm_period_beacon = max(pm_period_beacon, 2u);
- pm_period_beacon = min(pm_period_beacon, 0xffffu);
-
- at76_dbg(DBG_PM,
- "%s: pm_mode %d assoc id 0x%x listen int %d",
- priv->netdev->name, priv->pm_mode,
- priv->assoc_id, pm_period_beacon);
-
- at76_set_associd(priv, priv->assoc_id);
- at76_set_listen_interval(priv, (u16)pm_period_beacon);
- }
- schedule_delayed_work(&priv->dwork_beacon, BEACON_TIMEOUT);
- }
- at76_set_pm_mode(priv);
-
- netif_carrier_on(priv->netdev);
- netif_wake_queue(priv->netdev);
- at76_set_mac_state(priv, MAC_CONNECTED);
- at76_iwevent_bss_connect(priv->netdev, priv->curr_bss->bssid);
- at76_dbg(DBG_PROGRESS, "%s: connected to BSSID %s",
- priv->netdev->name, mac2str(priv->curr_bss->bssid));
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
-/* We only store the new mac address in netdev struct,
- it gets set when the netdev is opened. */
-static int at76_set_mac_address(struct net_device *netdev, void *addr)
-{
- struct sockaddr *mac = addr;
- memcpy(netdev->dev_addr, mac->sa_data, ETH_ALEN);
- return 1;
-}
-
-static struct net_device_stats *at76_get_stats(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- return &priv->stats;
-}
-
-static struct iw_statistics *at76_get_wireless_stats(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL, "RETURN qual %d level %d noise %d updated %d",
- priv->wstats.qual.qual, priv->wstats.qual.level,
- priv->wstats.qual.noise, priv->wstats.qual.updated);
-
- return &priv->wstats;
-}
-
-static void at76_set_multicast(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int promisc;
-
- promisc = ((netdev->flags & IFF_PROMISC) != 0);
- if (promisc != priv->promisc) {
- /* This gets called in interrupt, must reschedule */
- priv->promisc = promisc;
- schedule_work(&priv->work_set_promisc);
- }
-}
-
-/* Stop all network activity, flush all pending tasks */
-static void at76_quiesce(struct at76_priv *priv)
-{
- unsigned long flags;
-
- netif_stop_queue(priv->netdev);
- netif_carrier_off(priv->netdev);
-
- at76_set_mac_state(priv, MAC_INIT);
-
- cancel_delayed_work(&priv->dwork_get_scan);
- cancel_delayed_work(&priv->dwork_beacon);
- cancel_delayed_work(&priv->dwork_auth);
- cancel_delayed_work(&priv->dwork_assoc);
- cancel_delayed_work(&priv->dwork_restart);
-
- spin_lock_irqsave(&priv->mgmt_spinlock, flags);
- kfree(priv->next_mgmt_bulk);
- priv->next_mgmt_bulk = NULL;
- spin_unlock_irqrestore(&priv->mgmt_spinlock, flags);
-}
-
-/*******************************************************************************
- * at76_priv implementations of iw_handler functions:
- */
-static int at76_iw_handler_commit(struct net_device *netdev,
- struct iw_request_info *info,
- void *null, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL, "%s %s: restarting the device", netdev->name,
- __func__);
-
- if (priv->mac_state != MAC_INIT)
- at76_quiesce(priv);
-
- /* Wait half second before the restart to process subsequent
- * requests from the same iwconfig in a single restart */
- schedule_delayed_work(&priv->dwork_restart, HZ / 2);
-
- return 0;
-}
-
-static int at76_iw_handler_get_name(struct net_device *netdev,
- struct iw_request_info *info,
- char *name, char *extra)
-{
- strcpy(name, "IEEE 802.11b");
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWNAME - name %s", netdev->name, name);
- return 0;
-}
-
-static int at76_iw_handler_set_freq(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int chan = -1;
- int ret = -EIWCOMMIT;
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - freq.m %d freq.e %d",
- netdev->name, freq->m, freq->e);
-
- if ((freq->e == 0) && (freq->m <= 1000))
- /* Setting by channel number */
- chan = freq->m;
- else {
- /* Setting by frequency - search the table */
- int mult = 1;
- int i;
-
- for (i = 0; i < (6 - freq->e); i++)
- mult *= 10;
-
- for (i = 0; i < NUM_CHANNELS; i++) {
- if (freq->m == (channel_frequency[i] * mult))
- chan = i + 1;
- }
- }
-
- if (chan < 1 || !priv->domain)
- /* non-positive channels are invalid
- * we need a domain info to set the channel
- * either that or an invalid frequency was
- * provided by the user */
- ret = -EINVAL;
- else if (!(priv->domain->channel_map & (1 << (chan - 1)))) {
- printk(KERN_INFO "%s: channel %d not allowed for domain %s\n",
- priv->netdev->name, chan, priv->domain->name);
- ret = -EINVAL;
- }
-
- if (ret == -EIWCOMMIT) {
- priv->channel = chan;
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - ch %d", netdev->name,
- chan);
- }
-
- return ret;
-}
-
-static int at76_iw_handler_get_freq(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- freq->m = priv->channel;
- freq->e = 0;
-
- if (priv->channel)
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - freq %ld x 10e%d",
- netdev->name, channel_frequency[priv->channel - 1], 6);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - ch %d", netdev->name,
- priv->channel);
-
- return 0;
-}
-
-static int at76_iw_handler_set_mode(struct net_device *netdev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWMODE - %d", netdev->name, *mode);
-
- if ((*mode != IW_MODE_ADHOC) && (*mode != IW_MODE_INFRA) &&
- (*mode != IW_MODE_MONITOR))
- return -EINVAL;
-
- priv->iw_mode = *mode;
- if (priv->iw_mode != IW_MODE_INFRA)
- priv->pm_mode = AT76_PM_OFF;
-
- return -EIWCOMMIT;
-}
-
-static int at76_iw_handler_get_mode(struct net_device *netdev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- *mode = priv->iw_mode;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWMODE - %d", netdev->name, *mode);
-
- return 0;
-}
-
-static int at76_iw_handler_get_range(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- /* inspired by atmel.c */
- struct at76_priv *priv = netdev_priv(netdev);
- struct iw_range *range = (struct iw_range *)extra;
- int i;
-
- data->length = sizeof(struct iw_range);
- memset(range, 0, sizeof(struct iw_range));
-
- /* TODO: range->throughput = xxxxxx; */
-
- range->min_nwid = 0x0000;
- range->max_nwid = 0x0000;
-
- /* this driver doesn't maintain sensitivity information */
- range->sensitivity = 0;
-
- range->max_qual.qual = 100;
- range->max_qual.level = 100;
- range->max_qual.noise = 0;
- range->max_qual.updated = IW_QUAL_NOISE_INVALID;
-
- range->avg_qual.qual = 50;
- range->avg_qual.level = 50;
- range->avg_qual.noise = 0;
- range->avg_qual.updated = IW_QUAL_NOISE_INVALID;
-
- range->bitrate[0] = 1000000;
- range->bitrate[1] = 2000000;
- range->bitrate[2] = 5500000;
- range->bitrate[3] = 11000000;
- range->num_bitrates = 4;
-
- range->min_rts = 0;
- range->max_rts = IEEE80211_MAX_RTS_THRESHOLD;
-
- range->min_frag = MIN_FRAG_THRESHOLD;
- range->max_frag = IEEE80211_MAX_FRAG_THRESHOLD;
-
- range->pmp_flags = IW_POWER_PERIOD;
- range->pmt_flags = IW_POWER_ON;
- range->pm_capa = IW_POWER_PERIOD | IW_POWER_ALL_R;
-
- range->encoding_size[0] = WEP_SMALL_KEY_LEN;
- range->encoding_size[1] = WEP_LARGE_KEY_LEN;
- range->num_encoding_sizes = 2;
- range->max_encoding_tokens = WEP_KEYS;
-
- /* both WL-240U and Linksys WUSB11 v2.6 specify 15 dBm as output power
- - take this for all (ignore antenna gains) */
- range->txpower[0] = 15;
- range->num_txpower = 1;
- range->txpower_capa = IW_TXPOW_DBM;
-
- range->we_version_source = WIRELESS_EXT;
- range->we_version_compiled = WIRELESS_EXT;
-
- /* same as the values used in atmel.c */
- range->retry_capa = IW_RETRY_LIMIT;
- range->retry_flags = IW_RETRY_LIMIT;
- range->r_time_flags = 0;
- range->min_retry = 1;
- range->max_retry = 255;
-
- range->num_channels = NUM_CHANNELS;
- range->num_frequency = 0;
-
- for (i = 0; i < NUM_CHANNELS; i++) {
- /* test if channel map bit is raised */
- if (priv->domain->channel_map & (0x1 << i)) {
- range->num_frequency += 1;
-
- range->freq[i].i = i + 1;
- range->freq[i].m = channel_frequency[i] * 100000;
- range->freq[i].e = 1; /* freq * 10^1 */
- }
- }
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWRANGE", netdev->name);
-
- return 0;
-}
-
-static int at76_iw_handler_set_spy(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = 0;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWSPY - number of addresses %d",
- netdev->name, data->length);
-
- spin_lock_bh(&priv->spy_spinlock);
- ret = iw_handler_set_spy(priv->netdev, info, (union iwreq_data *)data,
- extra);
- spin_unlock_bh(&priv->spy_spinlock);
-
- return ret;
-}
-
-static int at76_iw_handler_get_spy(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
-
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = 0;
-
- spin_lock_bh(&priv->spy_spinlock);
- ret = iw_handler_get_spy(priv->netdev, info,
- (union iwreq_data *)data, extra);
- spin_unlock_bh(&priv->spy_spinlock);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWSPY - number of addresses %d",
- netdev->name, data->length);
-
- return ret;
-}
-
-static int at76_iw_handler_set_thrspy(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWTHRSPY - number of addresses %d)",
- netdev->name, data->length);
-
- spin_lock_bh(&priv->spy_spinlock);
- ret = iw_handler_set_thrspy(netdev, info, (union iwreq_data *)data,
- extra);
- spin_unlock_bh(&priv->spy_spinlock);
-
- return ret;
-}
-
-static int at76_iw_handler_get_thrspy(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret;
-
- spin_lock_bh(&priv->spy_spinlock);
- ret = iw_handler_get_thrspy(netdev, info, (union iwreq_data *)data,
- extra);
- spin_unlock_bh(&priv->spy_spinlock);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWTHRSPY - number of addresses %d)",
- netdev->name, data->length);
-
- return ret;
-}
-
-static int at76_iw_handler_set_wap(struct net_device *netdev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWAP - wap/bssid %s", netdev->name,
- mac2str(ap_addr->sa_data));
-
- /* if the incoming address == ff:ff:ff:ff:ff:ff, the user has
- chosen any or auto AP preference */
- if (is_broadcast_ether_addr(ap_addr->sa_data)
- || is_zero_ether_addr(ap_addr->sa_data))
- priv->wanted_bssid_valid = 0;
- else {
- /* user wants to set a preferred AP address */
- priv->wanted_bssid_valid = 1;
- memcpy(priv->wanted_bssid, ap_addr->sa_data, ETH_ALEN);
- }
-
- return -EIWCOMMIT;
-}
-
-static int at76_iw_handler_get_wap(struct net_device *netdev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(ap_addr->sa_data, priv->bssid, ETH_ALEN);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWAP - wap/bssid %s", netdev->name,
- mac2str(ap_addr->sa_data));
-
- return 0;
-}
-
-static int at76_iw_handler_set_scan(struct net_device *netdev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = 0;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWSCAN", netdev->name);
-
- if (mutex_lock_interruptible(&priv->mtx))
- return -EINTR;
-
- if (!netif_running(netdev)) {
- ret = -ENETDOWN;
- goto exit;
- }
-
- /* jal: we don't allow "iwlist ethX scan" while we are
- in monitor mode */
- if (priv->iw_mode == IW_MODE_MONITOR) {
- ret = -EBUSY;
- goto exit;
- }
-
- /* Discard old scan results */
- if ((jiffies - priv->last_scan) > (20 * HZ))
- priv->scan_state = SCAN_IDLE;
- priv->last_scan = jiffies;
-
- /* Initiate a scan command */
- if (priv->scan_state == SCAN_IN_PROGRESS) {
- ret = -EBUSY;
- goto exit;
- }
-
- priv->scan_state = SCAN_IN_PROGRESS;
-
- at76_quiesce(priv);
-
- /* Try to do passive or active scan if WE asks as. */
- if (wrqu->data.length
- && wrqu->data.length == sizeof(struct iw_scan_req)) {
- struct iw_scan_req *req = (struct iw_scan_req *)extra;
-
- if (req->scan_type == IW_SCAN_TYPE_PASSIVE)
- priv->scan_mode = SCAN_TYPE_PASSIVE;
- else if (req->scan_type == IW_SCAN_TYPE_ACTIVE)
- priv->scan_mode = SCAN_TYPE_ACTIVE;
-
- /* Sanity check values? */
- if (req->min_channel_time > 0)
- priv->scan_min_time = req->min_channel_time;
-
- if (req->max_channel_time > 0)
- priv->scan_max_time = req->max_channel_time;
- }
-
- /* change to scanning state */
- at76_set_mac_state(priv, MAC_SCANNING);
- schedule_work(&priv->work_start_scan);
-
-exit:
- mutex_unlock(&priv->mtx);
- return ret;
-}
-
-static int at76_iw_handler_get_scan(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- unsigned long flags;
- struct list_head *lptr, *nptr;
- struct bss_info *curr_bss;
- struct iw_event *iwe = kmalloc(sizeof(struct iw_event), GFP_KERNEL);
- char *curr_val, *curr_pos = extra;
- int i;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWSCAN", netdev->name);
-
- if (!iwe)
- return -ENOMEM;
-
- if (priv->scan_state != SCAN_COMPLETED)
- /* scan not yet finished */
- return -EAGAIN;
-
- spin_lock_irqsave(&priv->bss_list_spinlock, flags);
-
- list_for_each_safe(lptr, nptr, &priv->bss_list) {
- curr_bss = list_entry(lptr, struct bss_info, list);
-
- iwe->cmd = SIOCGIWAP;
- iwe->u.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(iwe->u.ap_addr.sa_data, curr_bss->bssid, 6);
- curr_pos = iwe_stream_add_event(curr_pos,
- extra + IW_SCAN_MAX_DATA, iwe,
- IW_EV_ADDR_LEN);
-
- iwe->u.data.length = curr_bss->ssid_len;
- iwe->cmd = SIOCGIWESSID;
- iwe->u.data.flags = 1;
-
- curr_pos = iwe_stream_add_point(curr_pos,
- extra + IW_SCAN_MAX_DATA, iwe,
- curr_bss->ssid);
-
- iwe->cmd = SIOCGIWMODE;
- iwe->u.mode = (curr_bss->capa & WLAN_CAPABILITY_IBSS) ?
- IW_MODE_ADHOC :
- (curr_bss->capa & WLAN_CAPABILITY_ESS) ?
- IW_MODE_MASTER : IW_MODE_AUTO;
- /* IW_MODE_AUTO = 0 which I thought is
- * the most logical value to return in this case */
- curr_pos = iwe_stream_add_event(curr_pos,
- extra + IW_SCAN_MAX_DATA, iwe,
- IW_EV_UINT_LEN);
-
- iwe->cmd = SIOCGIWFREQ;
- iwe->u.freq.m = curr_bss->channel;
- iwe->u.freq.e = 0;
- curr_pos = iwe_stream_add_event(curr_pos,
- extra + IW_SCAN_MAX_DATA, iwe,
- IW_EV_FREQ_LEN);
-
- iwe->cmd = SIOCGIWENCODE;
- if (curr_bss->capa & WLAN_CAPABILITY_PRIVACY)
- iwe->u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
- else
- iwe->u.data.flags = IW_ENCODE_DISABLED;
-
- iwe->u.data.length = 0;
- curr_pos = iwe_stream_add_point(curr_pos,
- extra + IW_SCAN_MAX_DATA, iwe,
- NULL);
-
- /* Add quality statistics */
- iwe->cmd = IWEVQUAL;
- iwe->u.qual.noise = 0;
- iwe->u.qual.updated =
- IW_QUAL_NOISE_INVALID | IW_QUAL_LEVEL_UPDATED;
- iwe->u.qual.level = (curr_bss->rssi * 100 / 42);
- if (iwe->u.qual.level > 100)
- iwe->u.qual.level = 100;
- if (at76_is_intersil(priv->board_type))
- iwe->u.qual.qual = curr_bss->link_qual;
- else {
- iwe->u.qual.qual = 0;
- iwe->u.qual.updated |= IW_QUAL_QUAL_INVALID;
- }
- /* Add new value to event */
- curr_pos = iwe_stream_add_event(curr_pos,
- extra + IW_SCAN_MAX_DATA, iwe,
- IW_EV_QUAL_LEN);
-
- /* Rate: stuffing multiple values in a single event requires
- * a bit more of magic - Jean II */
- curr_val = curr_pos + IW_EV_LCP_LEN;
-
- iwe->cmd = SIOCGIWRATE;
- /* Those two flags are ignored... */
- iwe->u.bitrate.fixed = 0;
- iwe->u.bitrate.disabled = 0;
- /* Max 8 values */
- for (i = 0; i < curr_bss->rates_len; i++) {
- /* Bit rate given in 500 kb/s units (+ 0x80) */
- iwe->u.bitrate.value =
- ((curr_bss->rates[i] & 0x7f) * 500000);
- /* Add new value to event */
- curr_val = iwe_stream_add_value(curr_pos, curr_val,
- extra +
- IW_SCAN_MAX_DATA, iwe,
- IW_EV_PARAM_LEN);
- }
-
- /* Check if we added any event */
- if ((curr_val - curr_pos) > IW_EV_LCP_LEN)
- curr_pos = curr_val;
-
- /* more information may be sent back using IWECUSTOM */
-
- }
-
- spin_unlock_irqrestore(&priv->bss_list_spinlock, flags);
-
- data->length = (curr_pos - extra);
- data->flags = 0;
-
- kfree(iwe);
- return 0;
-}
-
-static int at76_iw_handler_set_essid(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWESSID - %s", netdev->name, extra);
-
- if (data->flags) {
- memcpy(priv->essid, extra, data->length);
- priv->essid_size = data->length;
- } else
- priv->essid_size = 0; /* Use any SSID */
-
- return -EIWCOMMIT;
-}
-
-static int at76_iw_handler_get_essid(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- if (priv->essid_size) {
- /* not the ANY ssid in priv->essid */
- data->flags = 1;
- data->length = priv->essid_size;
- memcpy(extra, priv->essid, data->length);
- } else {
- /* the ANY ssid was specified */
- if (priv->mac_state == MAC_CONNECTED && priv->curr_bss) {
- /* report the SSID we have found */
- data->flags = 1;
- data->length = priv->curr_bss->ssid_len;
- memcpy(extra, priv->curr_bss->ssid, data->length);
- } else {
- /* report ANY back */
- data->flags = 0;
- data->length = 0;
- }
- }
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWESSID - %.*s", netdev->name,
- data->length, extra);
-
- return 0;
-}
-
-static int at76_iw_handler_set_rate(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *bitrate, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = -EIWCOMMIT;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWRATE - %d", netdev->name,
- bitrate->value);
-
- switch (bitrate->value) {
- case -1:
- priv->txrate = TX_RATE_AUTO;
- break; /* auto rate */
- case 1000000:
- priv->txrate = TX_RATE_1MBIT;
- break;
- case 2000000:
- priv->txrate = TX_RATE_2MBIT;
- break;
- case 5500000:
- priv->txrate = TX_RATE_5_5MBIT;
- break;
- case 11000000:
- priv->txrate = TX_RATE_11MBIT;
- break;
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-static int at76_iw_handler_get_rate(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *bitrate, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = 0;
-
- switch (priv->txrate) {
- /* return max rate if RATE_AUTO */
- case TX_RATE_AUTO:
- bitrate->value = 11000000;
- break;
- case TX_RATE_1MBIT:
- bitrate->value = 1000000;
- break;
- case TX_RATE_2MBIT:
- bitrate->value = 2000000;
- break;
- case TX_RATE_5_5MBIT:
- bitrate->value = 5500000;
- break;
- case TX_RATE_11MBIT:
- bitrate->value = 11000000;
- break;
- default:
- ret = -EINVAL;
- }
-
- bitrate->fixed = (priv->txrate != TX_RATE_AUTO);
- bitrate->disabled = 0;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWRATE - %d", netdev->name,
- bitrate->value);
-
- return ret;
-}
-
-static int at76_iw_handler_set_rts(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = -EIWCOMMIT;
- int rthr = rts->value;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWRTS - value %d disabled %s",
- netdev->name, rts->value, (rts->disabled) ? "true" : "false");
-
- if (rts->disabled)
- rthr = IEEE80211_MAX_RTS_THRESHOLD;
-
- if ((rthr < 0) || (rthr > IEEE80211_MAX_RTS_THRESHOLD))
- ret = -EINVAL;
- else
- priv->rts_threshold = rthr;
-
- return ret;
-}
-
-static int at76_iw_handler_get_rts(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- rts->value = priv->rts_threshold;
- rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
- rts->fixed = 1;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWRTS - value %d disabled %s",
- netdev->name, rts->value, (rts->disabled) ? "true" : "false");
-
- return 0;
-}
-
-static int at76_iw_handler_set_frag(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = -EIWCOMMIT;
- int fthr = frag->value;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWFRAG - value %d, disabled %s",
- netdev->name, frag->value,
- (frag->disabled) ? "true" : "false");
-
- if (frag->disabled)
- fthr = IEEE80211_MAX_FRAG_THRESHOLD;
-
- if ((fthr < MIN_FRAG_THRESHOLD)
- || (fthr > IEEE80211_MAX_FRAG_THRESHOLD))
- ret = -EINVAL;
- else
- priv->frag_threshold = fthr & ~0x1; /* get an even value */
-
- return ret;
-}
-
-static int at76_iw_handler_get_frag(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- frag->value = priv->frag_threshold;
- frag->disabled = (frag->value >= IEEE80211_MAX_FRAG_THRESHOLD);
- frag->fixed = 1;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWFRAG - value %d, disabled %s",
- netdev->name, frag->value,
- (frag->disabled) ? "true" : "false");
-
- return 0;
-}
-
-static int at76_iw_handler_get_txpow(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *power, char *extra)
-{
- power->value = 15;
- power->fixed = 1; /* No power control */
- power->disabled = 0;
- power->flags = IW_TXPOW_DBM;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWTXPOW - txpow %d dBm", netdev->name,
- power->value);
-
- return 0;
-}
-
-/* jal: short retry is handled by the firmware (at least 0.90.x),
- while long retry is not (?) */
-static int at76_iw_handler_set_retry(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = -EIWCOMMIT;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWRETRY disabled %d flags 0x%x val %d",
- netdev->name, retry->disabled, retry->flags, retry->value);
-
- if (!retry->disabled && (retry->flags & IW_RETRY_LIMIT)) {
- if ((retry->flags & IW_RETRY_MIN) ||
- !(retry->flags & IW_RETRY_MAX))
- priv->short_retry_limit = retry->value;
- else
- ret = -EINVAL;
- } else
- ret = -EINVAL;
-
- return ret;
-}
-
-/* Adapted (ripped) from atmel.c */
-static int at76_iw_handler_get_retry(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWRETRY", netdev->name);
-
- retry->disabled = 0; /* Can't be disabled */
- retry->flags = IW_RETRY_LIMIT;
- retry->value = priv->short_retry_limit;
-
- return 0;
-}
-
-static int at76_iw_handler_set_encode(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *encoding, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int index = (encoding->flags & IW_ENCODE_INDEX) - 1;
- int len = encoding->length;
-
- at76_dbg(DBG_IOCTL, "%s: SIOCSIWENCODE - enc.flags %08x "
- "pointer %p len %d", netdev->name, encoding->flags,
- encoding->pointer, encoding->length);
- at76_dbg(DBG_IOCTL,
- "%s: SIOCSIWENCODE - old wepstate: enabled %s key_id %d "
- "auth_mode %s", netdev->name,
- (priv->wep_enabled) ? "true" : "false", priv->wep_key_id,
- (priv->auth_mode ==
- WLAN_AUTH_SHARED_KEY) ? "restricted" : "open");
-
- /* take the old default key if index is invalid */
- if ((index < 0) || (index >= WEP_KEYS))
- index = priv->wep_key_id;
-
- if (len > 0) {
- if (len > WEP_LARGE_KEY_LEN)
- len = WEP_LARGE_KEY_LEN;
-
- memset(priv->wep_keys[index], 0, sizeof(priv->wep_keys[index]));
- memcpy(priv->wep_keys[index], extra, len);
- priv->wep_keys_len[index] = (len <= WEP_SMALL_KEY_LEN) ?
- WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;
- priv->wep_enabled = 1;
- }
-
- priv->wep_key_id = index;
- priv->wep_enabled = ((encoding->flags & IW_ENCODE_DISABLED) == 0);
-
- if (encoding->flags & IW_ENCODE_RESTRICTED)
- priv->auth_mode = WLAN_AUTH_SHARED_KEY;
- if (encoding->flags & IW_ENCODE_OPEN)
- priv->auth_mode = WLAN_AUTH_OPEN;
-
- at76_dbg(DBG_IOCTL,
- "%s: SIOCSIWENCODE - new wepstate: enabled %s key_id %d "
- "key_len %d auth_mode %s", netdev->name,
- (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1,
- priv->wep_keys_len[priv->wep_key_id],
- (priv->auth_mode ==
- WLAN_AUTH_SHARED_KEY) ? "restricted" : "open");
-
- return -EIWCOMMIT;
-}
-
-static int at76_iw_handler_get_encode(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *encoding, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int index = (encoding->flags & IW_ENCODE_INDEX) - 1;
-
- if ((index < 0) || (index >= WEP_KEYS))
- index = priv->wep_key_id;
-
- encoding->flags =
- (priv->auth_mode == WLAN_AUTH_SHARED_KEY) ?
- IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN;
-
- if (!priv->wep_enabled)
- encoding->flags |= IW_ENCODE_DISABLED;
-
- if (encoding->pointer) {
- encoding->length = priv->wep_keys_len[index];
-
- memcpy(extra, priv->wep_keys[index], priv->wep_keys_len[index]);
-
- encoding->flags |= (index + 1);
- }
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWENCODE - enc.flags %08x "
- "pointer %p len %d", netdev->name, encoding->flags,
- encoding->pointer, encoding->length);
- at76_dbg(DBG_IOCTL,
- "%s: SIOCGIWENCODE - wepstate: enabled %s key_id %d "
- "key_len %d auth_mode %s", netdev->name,
- (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1,
- priv->wep_keys_len[priv->wep_key_id],
- (priv->auth_mode ==
- WLAN_AUTH_SHARED_KEY) ? "restricted" : "open");
-
- return 0;
-}
-
-static int at76_iw_handler_set_power(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *prq, char *extra)
-{
- int err = -EIWCOMMIT;
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_IOCTL,
- "%s: SIOCSIWPOWER - disabled %s flags 0x%x value 0x%x",
- netdev->name, (prq->disabled) ? "true" : "false", prq->flags,
- prq->value);
-
- if (prq->disabled)
- priv->pm_mode = AT76_PM_OFF;
- else {
- switch (prq->flags & IW_POWER_MODE) {
- case IW_POWER_ALL_R:
- case IW_POWER_ON:
- break;
- default:
- err = -EINVAL;
- goto exit;
- }
- if (prq->flags & IW_POWER_PERIOD)
- priv->pm_period = prq->value;
-
- if (prq->flags & IW_POWER_TIMEOUT) {
- err = -EINVAL;
- goto exit;
- }
- priv->pm_mode = AT76_PM_ON;
- }
-exit:
- return err;
-}
-
-static int at76_iw_handler_get_power(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_param *power, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- power->disabled = (priv->pm_mode == AT76_PM_OFF);
- if (!power->disabled) {
- power->flags = IW_POWER_PERIOD | IW_POWER_ALL_R;
- power->value = priv->pm_period;
- }
-
- at76_dbg(DBG_IOCTL, "%s: SIOCGIWPOWER - %s flags 0x%x value 0x%x",
- netdev->name, power->disabled ? "disabled" : "enabled",
- power->flags, power->value);
-
- return 0;
-}
-
-/*******************************************************************************
- * Private IOCTLS
- */
-static int at76_iw_set_short_preamble(struct net_device *netdev,
- struct iw_request_info *info, char *name,
- char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int val = *((int *)name);
- int ret = -EIWCOMMIT;
-
- at76_dbg(DBG_IOCTL, "%s: AT76_SET_SHORT_PREAMBLE, %d",
- netdev->name, val);
-
- if (val < PREAMBLE_TYPE_LONG || val > PREAMBLE_TYPE_AUTO)
- ret = -EINVAL;
- else
- priv->preamble_type = val;
-
- return ret;
-}
-
-static int at76_iw_get_short_preamble(struct net_device *netdev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- snprintf(wrqu->name, sizeof(wrqu->name), "%s (%d)",
- preambles[priv->preamble_type], priv->preamble_type);
- return 0;
-}
-
-static int at76_iw_set_debug(struct net_device *netdev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- char *ptr;
- u32 val;
-
- if (data->length > 0) {
- val = simple_strtol(extra, &ptr, 0);
-
- if (ptr == extra)
- val = DBG_DEFAULTS;
-
- at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG input %d: %s -> 0x%x",
- netdev->name, data->length, extra, val);
- } else
- val = DBG_DEFAULTS;
-
- at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG, old 0x%x, new 0x%x",
- netdev->name, at76_debug, val);
-
- /* jal: some more output to pin down lockups */
- at76_dbg(DBG_IOCTL, "%s: netif running %d queue_stopped %d "
- "carrier_ok %d", netdev->name, netif_running(netdev),
- netif_queue_stopped(netdev), netif_carrier_ok(netdev));
-
- at76_debug = val;
-
- return 0;
-}
-
-static int at76_iw_get_debug(struct net_device *netdev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- snprintf(wrqu->name, sizeof(wrqu->name), "0x%08x", at76_debug);
- return 0;
-}
-
-static int at76_iw_set_powersave_mode(struct net_device *netdev,
- struct iw_request_info *info, char *name,
- char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int val = *((int *)name);
- int ret = -EIWCOMMIT;
-
- at76_dbg(DBG_IOCTL, "%s: AT76_SET_POWERSAVE_MODE, %d (%s)",
- netdev->name, val,
- val == AT76_PM_OFF ? "active" : val == AT76_PM_ON ? "save" :
- val == AT76_PM_SMART ? "smart save" : "<invalid>");
- if (val < AT76_PM_OFF || val > AT76_PM_SMART)
- ret = -EINVAL;
- else
- priv->pm_mode = val;
-
- return ret;
-}
-
-static int at76_iw_get_powersave_mode(struct net_device *netdev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int *param = (int *)extra;
-
- param[0] = priv->pm_mode;
- return 0;
-}
-
-static int at76_iw_set_scan_times(struct net_device *netdev,
- struct iw_request_info *info, char *name,
- char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int mint = *((int *)name);
- int maxt = *((int *)name + 1);
- int ret = -EIWCOMMIT;
-
- at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_TIMES - min %d max %d",
- netdev->name, mint, maxt);
- if (mint <= 0 || maxt <= 0 || mint > maxt)
- ret = -EINVAL;
- else {
- priv->scan_min_time = mint;
- priv->scan_max_time = maxt;
- }
-
- return ret;
-}
-
-static int at76_iw_get_scan_times(struct net_device *netdev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int *param = (int *)extra;
-
- param[0] = priv->scan_min_time;
- param[1] = priv->scan_max_time;
- return 0;
-}
-
-static int at76_iw_set_scan_mode(struct net_device *netdev,
- struct iw_request_info *info, char *name,
- char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int val = *((int *)name);
- int ret = -EIWCOMMIT;
-
- at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_MODE - mode %s",
- netdev->name, (val = SCAN_TYPE_ACTIVE) ? "active" :
- (val = SCAN_TYPE_PASSIVE) ? "passive" : "<invalid>");
-
- if (val != SCAN_TYPE_ACTIVE && val != SCAN_TYPE_PASSIVE)
- ret = -EINVAL;
- else
- priv->scan_mode = val;
-
- return ret;
-}
-
-static int at76_iw_get_scan_mode(struct net_device *netdev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int *param = (int *)extra;
-
- param[0] = priv->scan_mode;
- return 0;
-}
-
-#define AT76_SET_HANDLER(h, f) [h - SIOCIWFIRST] = (iw_handler) f
-
-/* Standard wireless handlers */
-static const iw_handler at76_handlers[] = {
- AT76_SET_HANDLER(SIOCSIWCOMMIT, at76_iw_handler_commit),
- AT76_SET_HANDLER(SIOCGIWNAME, at76_iw_handler_get_name),
- AT76_SET_HANDLER(SIOCSIWFREQ, at76_iw_handler_set_freq),
- AT76_SET_HANDLER(SIOCGIWFREQ, at76_iw_handler_get_freq),
- AT76_SET_HANDLER(SIOCSIWMODE, at76_iw_handler_set_mode),
- AT76_SET_HANDLER(SIOCGIWMODE, at76_iw_handler_get_mode),
- AT76_SET_HANDLER(SIOCGIWRANGE, at76_iw_handler_get_range),
- AT76_SET_HANDLER(SIOCSIWSPY, at76_iw_handler_set_spy),
- AT76_SET_HANDLER(SIOCGIWSPY, at76_iw_handler_get_spy),
- AT76_SET_HANDLER(SIOCSIWTHRSPY, at76_iw_handler_set_thrspy),
- AT76_SET_HANDLER(SIOCGIWTHRSPY, at76_iw_handler_get_thrspy),
- AT76_SET_HANDLER(SIOCSIWAP, at76_iw_handler_set_wap),
- AT76_SET_HANDLER(SIOCGIWAP, at76_iw_handler_get_wap),
- AT76_SET_HANDLER(SIOCSIWSCAN, at76_iw_handler_set_scan),
- AT76_SET_HANDLER(SIOCGIWSCAN, at76_iw_handler_get_scan),
- AT76_SET_HANDLER(SIOCSIWESSID, at76_iw_handler_set_essid),
- AT76_SET_HANDLER(SIOCGIWESSID, at76_iw_handler_get_essid),
- AT76_SET_HANDLER(SIOCSIWRATE, at76_iw_handler_set_rate),
- AT76_SET_HANDLER(SIOCGIWRATE, at76_iw_handler_get_rate),
- AT76_SET_HANDLER(SIOCSIWRTS, at76_iw_handler_set_rts),
- AT76_SET_HANDLER(SIOCGIWRTS, at76_iw_handler_get_rts),
- AT76_SET_HANDLER(SIOCSIWFRAG, at76_iw_handler_set_frag),
- AT76_SET_HANDLER(SIOCGIWFRAG, at76_iw_handler_get_frag),
- AT76_SET_HANDLER(SIOCGIWTXPOW, at76_iw_handler_get_txpow),
- AT76_SET_HANDLER(SIOCSIWRETRY, at76_iw_handler_set_retry),
- AT76_SET_HANDLER(SIOCGIWRETRY, at76_iw_handler_get_retry),
- AT76_SET_HANDLER(SIOCSIWENCODE, at76_iw_handler_set_encode),
- AT76_SET_HANDLER(SIOCGIWENCODE, at76_iw_handler_get_encode),
- AT76_SET_HANDLER(SIOCSIWPOWER, at76_iw_handler_set_power),
- AT76_SET_HANDLER(SIOCGIWPOWER, at76_iw_handler_get_power)
-};
-
-#define AT76_SET_PRIV(h, f) [h - SIOCIWFIRSTPRIV] = (iw_handler) f
-
-/* Private wireless handlers */
-static const iw_handler at76_priv_handlers[] = {
- AT76_SET_PRIV(AT76_SET_SHORT_PREAMBLE, at76_iw_set_short_preamble),
- AT76_SET_PRIV(AT76_GET_SHORT_PREAMBLE, at76_iw_get_short_preamble),
- AT76_SET_PRIV(AT76_SET_DEBUG, at76_iw_set_debug),
- AT76_SET_PRIV(AT76_GET_DEBUG, at76_iw_get_debug),
- AT76_SET_PRIV(AT76_SET_POWERSAVE_MODE, at76_iw_set_powersave_mode),
- AT76_SET_PRIV(AT76_GET_POWERSAVE_MODE, at76_iw_get_powersave_mode),
- AT76_SET_PRIV(AT76_SET_SCAN_TIMES, at76_iw_set_scan_times),
- AT76_SET_PRIV(AT76_GET_SCAN_TIMES, at76_iw_get_scan_times),
- AT76_SET_PRIV(AT76_SET_SCAN_MODE, at76_iw_set_scan_mode),
- AT76_SET_PRIV(AT76_GET_SCAN_MODE, at76_iw_get_scan_mode),
-};
-
-/* Names and arguments of private wireless handlers */
-static const struct iw_priv_args at76_priv_args[] = {
- /* 0 - long, 1 - short */
- {AT76_SET_SHORT_PREAMBLE,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"},
-
- {AT76_GET_SHORT_PREAMBLE,
- 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_preamble"},
-
- /* we must pass the new debug mask as a string, because iwpriv cannot
- * parse hex numbers starting with 0x :-( */
- {AT76_SET_DEBUG,
- IW_PRIV_TYPE_CHAR | 10, 0, "set_debug"},
-
- {AT76_GET_DEBUG,
- 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_debug"},
-
- /* 1 - active, 2 - power save, 3 - smart power save */
- {AT76_SET_POWERSAVE_MODE,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_powersave"},
-
- {AT76_GET_POWERSAVE_MODE,
- 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_powersave"},
-
- /* min_channel_time, max_channel_time */
- {AT76_SET_SCAN_TIMES,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_scan_times"},
-
- {AT76_GET_SCAN_TIMES,
- 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, "get_scan_times"},
-
- /* 0 - active, 1 - passive scan */
- {AT76_SET_SCAN_MODE,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_scan_mode"},
-
- {AT76_GET_SCAN_MODE,
- 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_scan_mode"},
-};
-
-static const struct iw_handler_def at76_handler_def = {
- .num_standard = ARRAY_SIZE(at76_handlers),
- .num_private = ARRAY_SIZE(at76_priv_handlers),
- .num_private_args = ARRAY_SIZE(at76_priv_args),
- .standard = at76_handlers,
- .private = at76_priv_handlers,
- .private_args = at76_priv_args,
- .get_wireless_stats = at76_get_wireless_stats,
-};
-
-static const u8 snapsig[] = { 0xaa, 0xaa, 0x03 };
-
-/* RFC 1042 encapsulates Ethernet frames in 802.2 SNAP (0xaa, 0xaa, 0x03) with
- * a SNAP OID of 0 (0x00, 0x00, 0x00) */
-static const u8 rfc1042sig[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-
-static int at76_tx(struct sk_buff *skb, struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- struct net_device_stats *stats = &priv->stats;
- int ret = 0;
- int wlen;
- int submit_len;
- struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer;
- struct ieee80211_hdr_3addr *i802_11_hdr =
- (struct ieee80211_hdr_3addr *)tx_buffer->packet;
- u8 *payload = i802_11_hdr->payload;
- struct ethhdr *eh = (struct ethhdr *)skb->data;
-
- if (netif_queue_stopped(netdev)) {
- printk(KERN_ERR "%s: %s called while netdev is stopped\n",
- netdev->name, __func__);
- /* skip this packet */
- dev_kfree_skb(skb);
- return 0;
- }
-
- if (priv->tx_urb->status == -EINPROGRESS) {
- printk(KERN_ERR "%s: %s called while tx urb is pending\n",
- netdev->name, __func__);
- /* skip this packet */
- dev_kfree_skb(skb);
- return 0;
- }
-
- if (skb->len < ETH_HLEN) {
- printk(KERN_ERR "%s: %s: skb too short (%d)\n",
- netdev->name, __func__, skb->len);
- dev_kfree_skb(skb);
- return 0;
- }
-
- at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */
-
- /* we can get rid of memcpy if we set netdev->hard_header_len to
- reserve enough space, but we would need to keep the skb around */
-
- if (ntohs(eh->h_proto) <= ETH_DATA_LEN) {
- /* this is a 802.3 packet */
- if (skb->len >= ETH_HLEN + sizeof(rfc1042sig)
- && skb->data[ETH_HLEN] == rfc1042sig[0]
- && skb->data[ETH_HLEN + 1] == rfc1042sig[1]) {
- /* higher layer delivered SNAP header - keep it */
- memcpy(payload, skb->data + ETH_HLEN,
- skb->len - ETH_HLEN);
- wlen = IEEE80211_3ADDR_LEN + skb->len - ETH_HLEN;
- } else {
- printk(KERN_ERR "%s: dropping non-SNAP 802.2 packet "
- "(DSAP 0x%02x SSAP 0x%02x cntrl 0x%02x)\n",
- priv->netdev->name, skb->data[ETH_HLEN],
- skb->data[ETH_HLEN + 1],
- skb->data[ETH_HLEN + 2]);
- dev_kfree_skb(skb);
- return 0;
- }
- } else {
- /* add RFC 1042 header in front */
- memcpy(payload, rfc1042sig, sizeof(rfc1042sig));
- memcpy(payload + sizeof(rfc1042sig), &eh->h_proto,
- skb->len - offsetof(struct ethhdr, h_proto));
- wlen = IEEE80211_3ADDR_LEN + sizeof(rfc1042sig) + skb->len -
- offsetof(struct ethhdr, h_proto);
- }
-
- /* make wireless header */
- i802_11_hdr->frame_ctl =
- cpu_to_le16(IEEE80211_FTYPE_DATA |
- (priv->wep_enabled ? IEEE80211_FCTL_PROTECTED : 0) |
- (priv->iw_mode ==
- IW_MODE_INFRA ? IEEE80211_FCTL_TODS : 0));
-
- if (priv->iw_mode == IW_MODE_ADHOC) {
- memcpy(i802_11_hdr->addr1, eh->h_dest, ETH_ALEN);
- memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN);
- memcpy(i802_11_hdr->addr3, priv->bssid, ETH_ALEN);
- } else if (priv->iw_mode == IW_MODE_INFRA) {
- memcpy(i802_11_hdr->addr1, priv->bssid, ETH_ALEN);
- memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN);
- memcpy(i802_11_hdr->addr3, eh->h_dest, ETH_ALEN);
- }
-
- i802_11_hdr->duration_id = cpu_to_le16(0);
- i802_11_hdr->seq_ctl = cpu_to_le16(0);
-
- /* setup 'Atmel' header */
- tx_buffer->wlength = cpu_to_le16(wlen);
- tx_buffer->tx_rate = priv->txrate;
- /* for broadcast destination addresses, the firmware 0.100.x
- seems to choose the highest rate set with CMD_STARTUP in
- basic_rate_set replacing this value */
-
- memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved));
-
- tx_buffer->padding = at76_calc_padding(wlen);
- submit_len = wlen + AT76_TX_HDRLEN + tx_buffer->padding;
-
- at76_dbg_dump(DBG_TX_DATA, i802_11_hdr, sizeof(*i802_11_hdr),
- "%s tx: wlen 0x%x pad 0x%x rate %d hdr",
- priv->netdev->name,
- le16_to_cpu(tx_buffer->wlength),
- tx_buffer->padding, tx_buffer->tx_rate);
- at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len,
- "%s tx: tx_buffer", priv->netdev->name);
-
- /* send stuff */
- netif_stop_queue(netdev);
- netdev->trans_start = jiffies;
-
- usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer,
- submit_len, at76_tx_callback, priv);
- ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
- if (ret) {
- stats->tx_errors++;
- printk(KERN_ERR "%s: error in tx submit urb: %d\n",
- netdev->name, ret);
- if (ret == -EINVAL)
- printk(KERN_ERR
- "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n",
- priv->netdev->name, priv->tx_urb,
- priv->tx_urb->hcpriv, priv->tx_urb->complete);
- } else {
- stats->tx_bytes += skb->len;
- dev_kfree_skb(skb);
- }
-
- return ret;
-}
-
-static void at76_tx_timeout(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- if (!priv)
- return;
- warn("%s: tx timeout.", netdev->name);
-
- usb_unlink_urb(priv->tx_urb);
- priv->stats.tx_errors++;
-}
-
static int at76_submit_rx_urb(struct at76_priv *priv)
{
int ret;
@@ -3334,98 +1325,6 @@ exit:
return ret;
}
-static int at76_open(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- int ret = 0;
-
- at76_dbg(DBG_PROC_ENTRY, "%s(): entry", __func__);
-
- if (mutex_lock_interruptible(&priv->mtx))
- return -EINTR;
-
- /* if netdev->dev_addr != priv->mac_addr we must
- set the mac address in the device ! */
- if (compare_ether_addr(netdev->dev_addr, priv->mac_addr)) {
- if (at76_add_mac_address(priv, netdev->dev_addr) >= 0)
- at76_dbg(DBG_PROGRESS, "%s: set new MAC addr %s",
- netdev->name, mac2str(netdev->dev_addr));
- }
-
- priv->scan_state = SCAN_IDLE;
- priv->last_scan = jiffies;
-
- ret = at76_submit_rx_urb(priv);
- if (ret < 0) {
- printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n",
- netdev->name, ret);
- goto error;
- }
-
- schedule_delayed_work(&priv->dwork_restart, 0);
-
- at76_dbg(DBG_PROC_ENTRY, "%s(): end", __func__);
-error:
- mutex_unlock(&priv->mtx);
- return ret < 0 ? ret : 0;
-}
-
-static int at76_stop(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- at76_dbg(DBG_DEVSTART, "%s: ENTER", __func__);
-
- if (mutex_lock_interruptible(&priv->mtx))
- return -EINTR;
-
- at76_quiesce(priv);
-
- if (!priv->device_unplugged) {
- /* We are called by "ifconfig ethX down", not because the
- * device is not available anymore. */
- at76_set_radio(priv, 0);
-
- /* We unlink rx_urb because at76_open() re-submits it.
- * If unplugged, at76_delete_device() takes care of it. */
- usb_kill_urb(priv->rx_urb);
- }
-
- /* free the bss_list */
- at76_free_bss_list(priv);
-
- mutex_unlock(&priv->mtx);
- at76_dbg(DBG_DEVSTART, "%s: EXIT", __func__);
-
- return 0;
-}
-
-static void at76_ethtool_get_drvinfo(struct net_device *netdev,
- struct ethtool_drvinfo *info)
-{
- struct at76_priv *priv = netdev_priv(netdev);
-
- strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
- strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
-
- usb_make_path(priv->udev, info->bus_info, sizeof(info->bus_info));
-
- snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d-%d",
- priv->fw_version.major, priv->fw_version.minor,
- priv->fw_version.patch, priv->fw_version.build);
-}
-
-static u32 at76_ethtool_get_link(struct net_device *netdev)
-{
- struct at76_priv *priv = netdev_priv(netdev);
- return priv->mac_state == MAC_CONNECTED;
-}
-
-static struct ethtool_ops at76_ethtool_ops = {
- .get_drvinfo = at76_ethtool_get_drvinfo,
- .get_link = at76_ethtool_get_link,
-};
-
/* Download external firmware */
static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe)
{
@@ -3522,406 +1421,6 @@ exit:
return ret;
}
-static int at76_match_essid(struct at76_priv *priv, struct bss_info *ptr)
-{
- /* common criteria for both modi */
-
- int ret = (priv->essid_size == 0 /* ANY ssid */ ||
- (priv->essid_size == ptr->ssid_len &&
- !memcmp(priv->essid, ptr->ssid, ptr->ssid_len)));
- if (!ret)
- at76_dbg(DBG_BSS_MATCH,
- "%s bss table entry %p: essid didn't match",
- priv->netdev->name, ptr);
- return ret;
-}
-
-static inline int at76_match_mode(struct at76_priv *priv, struct bss_info *ptr)
-{
- int ret;
-
- if (priv->iw_mode == IW_MODE_ADHOC)
- ret = ptr->capa & WLAN_CAPABILITY_IBSS;
- else
- ret = ptr->capa & WLAN_CAPABILITY_ESS;
- if (!ret)
- at76_dbg(DBG_BSS_MATCH,
- "%s bss table entry %p: mode didn't match",
- priv->netdev->name, ptr);
- return ret;
-}
-
-static int at76_match_rates(struct at76_priv *priv, struct bss_info *ptr)
-{
- int i;
-
- for (i = 0; i < ptr->rates_len; i++) {
- u8 rate = ptr->rates[i];
-
- if (!(rate & 0x80))
- continue;
-
- /* this is a basic rate we have to support
- (see IEEE802.11, ch. 7.3.2.2) */
- if (rate != (0x80 | hw_rates[0])
- && rate != (0x80 | hw_rates[1])
- && rate != (0x80 | hw_rates[2])
- && rate != (0x80 | hw_rates[3])) {
- at76_dbg(DBG_BSS_MATCH,
- "%s: bss table entry %p: basic rate %02x not "
- "supported", priv->netdev->name, ptr, rate);
- return 0;
- }
- }
-
- /* if we use short preamble, the bss must support it */
- if (priv->preamble_type == PREAMBLE_TYPE_SHORT &&
- !(ptr->capa & WLAN_CAPABILITY_SHORT_PREAMBLE)) {
- at76_dbg(DBG_BSS_MATCH,
- "%s: %p does not support short preamble",
- priv->netdev->name, ptr);
- return 0;
- } else
- return 1;
-}
-
-static inline int at76_match_wep(struct at76_priv *priv, struct bss_info *ptr)
-{
- if (!priv->wep_enabled && ptr->capa & WLAN_CAPABILITY_PRIVACY) {
- /* we have disabled WEP, but the BSS signals privacy */
- at76_dbg(DBG_BSS_MATCH,
- "%s: bss table entry %p: requires encryption",
- priv->netdev->name, ptr);
- return 0;
- }
- /* otherwise if the BSS does not signal privacy it may well
- accept encrypted packets from us ... */
- return 1;
-}
-
-static inline int at76_match_bssid(struct at76_priv *priv, struct bss_info *ptr)
-{
- if (!priv->wanted_bssid_valid ||
- !compare_ether_addr(ptr->bssid, priv->wanted_bssid))
- return 1;
-
- at76_dbg(DBG_BSS_MATCH,
- "%s: requested bssid - %s does not match",
- priv->netdev->name, mac2str(priv->wanted_bssid));
- at76_dbg(DBG_BSS_MATCH,
- " AP bssid - %s of bss table entry %p",
- mac2str(ptr->bssid), ptr);
- return 0;
-}
-
-/**
- * at76_match_bss - try to find a matching bss in priv->bss
- *
- * last - last bss tried
- *
- * last == NULL signals a new round starting with priv->bss_list.next
- * this function must be called inside an acquired priv->bss_list_spinlock
- * otherwise the timeout on bss may remove the newly chosen entry
- */
-static struct bss_info *at76_match_bss(struct at76_priv *priv,
- struct bss_info *last)
-{
- struct bss_info *ptr = NULL;
- struct list_head *curr;
-
- curr = last ? last->list.next : priv->bss_list.next;
- while (curr != &priv->bss_list) {
- ptr = list_entry(curr, struct bss_info, list);
- if (at76_match_essid(priv, ptr) && at76_match_mode(priv, ptr)
- && at76_match_wep(priv, ptr) && at76_match_rates(priv, ptr)
- && at76_match_bssid(priv, ptr))
- break;
- curr = curr->next;
- }
-
- if (curr == &priv->bss_list)
- ptr = NULL;
- /* otherwise ptr points to the struct bss_info we have chosen */
-
- at76_dbg(DBG_BSS_TABLE, "%s %s: returned %p", priv->netdev->name,
- __func__, ptr);
- return ptr;
-}
-
-/* Start joining a matching BSS, or create own IBSS */
-static void at76_work_join(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- work_join);
- int ret;
- unsigned long flags;
-
- mutex_lock(&priv->mtx);
-
- WARN_ON(priv->mac_state != MAC_JOINING);
- if (priv->mac_state != MAC_JOINING)
- goto exit;
-
- /* secure the access to priv->curr_bss ! */
- spin_lock_irqsave(&priv->bss_list_spinlock, flags);
- priv->curr_bss = at76_match_bss(priv, priv->curr_bss);
- spin_unlock_irqrestore(&priv->bss_list_spinlock, flags);
-
- if (!priv->curr_bss) {
- /* here we haven't found a matching (i)bss ... */
- if (priv->iw_mode == IW_MODE_ADHOC) {
- at76_set_mac_state(priv, MAC_OWN_IBSS);
- at76_start_ibss(priv);
- goto exit;
- }
- /* haven't found a matching BSS in infra mode - try again */
- at76_set_mac_state(priv, MAC_SCANNING);
- schedule_work(&priv->work_start_scan);
- goto exit;
- }
-
- ret = at76_join_bss(priv, priv->curr_bss);
- if (ret < 0) {
- printk(KERN_ERR "%s: join_bss failed with %d\n",
- priv->netdev->name, ret);
- goto exit;
- }
-
- ret = at76_wait_completion(priv, CMD_JOIN);
- if (ret != CMD_STATUS_COMPLETE) {
- if (ret != CMD_STATUS_TIME_OUT)
- printk(KERN_ERR "%s: join_bss completed with %d\n",
- priv->netdev->name, ret);
- else
- printk(KERN_INFO "%s: join_bss ssid %s timed out\n",
- priv->netdev->name,
- mac2str(priv->curr_bss->bssid));
-
- /* retry next BSS immediately */
- schedule_work(&priv->work_join);
- goto exit;
- }
-
- /* here we have joined the (I)BSS */
- if (priv->iw_mode == IW_MODE_ADHOC) {
- struct bss_info *bptr = priv->curr_bss;
- at76_set_mac_state(priv, MAC_CONNECTED);
- /* get ESSID, BSSID and channel for priv->curr_bss */
- priv->essid_size = bptr->ssid_len;
- memcpy(priv->essid, bptr->ssid, bptr->ssid_len);
- memcpy(priv->bssid, bptr->bssid, ETH_ALEN);
- priv->channel = bptr->channel;
- at76_iwevent_bss_connect(priv->netdev, bptr->bssid);
- netif_carrier_on(priv->netdev);
- netif_start_queue(priv->netdev);
- /* just to be sure */
- cancel_delayed_work(&priv->dwork_get_scan);
- cancel_delayed_work(&priv->dwork_auth);
- cancel_delayed_work(&priv->dwork_assoc);
- } else {
- /* send auth req */
- priv->retries = AUTH_RETRIES;
- at76_set_mac_state(priv, MAC_AUTH);
- at76_auth_req(priv, priv->curr_bss, 1, NULL);
- at76_dbg(DBG_MGMT_TIMER,
- "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__);
- schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT);
- }
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
-/* Reap scan results */
-static void at76_dwork_get_scan(struct work_struct *work)
-{
- int status;
- int ret;
- struct at76_priv *priv = container_of(work, struct at76_priv,
- dwork_get_scan.work);
-
- mutex_lock(&priv->mtx);
- WARN_ON(priv->mac_state != MAC_SCANNING);
- if (priv->mac_state != MAC_SCANNING)
- goto exit;
-
- status = at76_get_cmd_status(priv->udev, CMD_SCAN);
- if (status < 0) {
- printk(KERN_ERR "%s: %s: at76_get_cmd_status failed with %d\n",
- priv->netdev->name, __func__, status);
- status = CMD_STATUS_IN_PROGRESS;
- /* INFO: Hope it was a one off error - if not, scanning
- further down the line and stop this cycle */
- }
- at76_dbg(DBG_PROGRESS,
- "%s %s: got cmd_status %d (state %s, need_any %d)",
- priv->netdev->name, __func__, status,
- mac_states[priv->mac_state], priv->scan_need_any);
-
- if (status != CMD_STATUS_COMPLETE) {
- if ((status != CMD_STATUS_IN_PROGRESS) &&
- (status != CMD_STATUS_IDLE))
- printk(KERN_ERR "%s: %s: Bad scan status: %s\n",
- priv->netdev->name, __func__,
- at76_get_cmd_status_string(status));
-
- /* the first cmd status after scan start is always a IDLE ->
- start the timer to poll again until COMPLETED */
- at76_dbg(DBG_MGMT_TIMER,
- "%s:%d: starting mgmt_timer for %d ticks",
- __func__, __LINE__, SCAN_POLL_INTERVAL);
- schedule_delayed_work(&priv->dwork_get_scan,
- SCAN_POLL_INTERVAL);
- goto exit;
- }
-
- if (at76_debug & DBG_BSS_TABLE)
- at76_dump_bss_table(priv);
-
- if (priv->scan_need_any) {
- ret = at76_start_scan(priv, 0);
- if (ret < 0)
- printk(KERN_ERR
- "%s: %s: start_scan (ANY) failed with %d\n",
- priv->netdev->name, __func__, ret);
- at76_dbg(DBG_MGMT_TIMER,
- "%s:%d: starting mgmt_timer for %d ticks", __func__,
- __LINE__, SCAN_POLL_INTERVAL);
- schedule_delayed_work(&priv->dwork_get_scan,
- SCAN_POLL_INTERVAL);
- priv->scan_need_any = 0;
- } else {
- priv->scan_state = SCAN_COMPLETED;
- /* report the end of scan to user space */
- at76_iwevent_scan_complete(priv->netdev);
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
- }
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
-/* Handle loss of beacons from the AP */
-static void at76_dwork_beacon(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- dwork_beacon.work);
-
- mutex_lock(&priv->mtx);
- if (priv->mac_state != MAC_CONNECTED || priv->iw_mode != IW_MODE_INFRA)
- goto exit;
-
- /* We haven't received any beacons from out AP for BEACON_TIMEOUT */
- printk(KERN_INFO "%s: lost beacon bssid %s\n",
- priv->netdev->name, mac2str(priv->curr_bss->bssid));
-
- netif_carrier_off(priv->netdev);
- netif_stop_queue(priv->netdev);
- at76_iwevent_bss_disconnect(priv->netdev);
- at76_set_mac_state(priv, MAC_SCANNING);
- schedule_work(&priv->work_start_scan);
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
-/* Handle authentication response timeout */
-static void at76_dwork_auth(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- dwork_auth.work);
-
- mutex_lock(&priv->mtx);
- WARN_ON(priv->mac_state != MAC_AUTH);
- if (priv->mac_state != MAC_AUTH)
- goto exit;
-
- at76_dbg(DBG_PROGRESS, "%s: authentication response timeout",
- priv->netdev->name);
-
- if (priv->retries-- >= 0) {
- at76_auth_req(priv, priv->curr_bss, 1, NULL);
- at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ",
- __func__, __LINE__);
- schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT);
- } else {
- /* try to get next matching BSS */
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
- }
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
-/* Handle association response timeout */
-static void at76_dwork_assoc(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- dwork_assoc.work);
-
- mutex_lock(&priv->mtx);
- WARN_ON(priv->mac_state != MAC_ASSOC);
- if (priv->mac_state != MAC_ASSOC)
- goto exit;
-
- at76_dbg(DBG_PROGRESS, "%s: association response timeout",
- priv->netdev->name);
-
- if (priv->retries-- >= 0) {
- at76_assoc_req(priv, priv->curr_bss);
- at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ",
- __func__, __LINE__);
- schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT);
- } else {
- /* try to get next matching BSS */
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
- }
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
-/* Read new bssid in ad-hoc mode */
-static void at76_work_new_bss(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- work_new_bss);
- int ret;
- struct mib_mac_mgmt mac_mgmt;
-
- mutex_lock(&priv->mtx);
-
- ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, &mac_mgmt,
- sizeof(struct mib_mac_mgmt));
- if (ret < 0) {
- printk(KERN_ERR "%s: at76_get_mib failed: %d\n",
- priv->netdev->name, ret);
- goto exit;
- }
-
- at76_dbg(DBG_PROGRESS, "ibss_change = 0x%2x", mac_mgmt.ibss_change);
- memcpy(priv->bssid, mac_mgmt.current_bssid, ETH_ALEN);
- at76_dbg(DBG_PROGRESS, "using BSSID %s", mac2str(priv->bssid));
-
- at76_iwevent_bss_connect(priv->netdev, priv->bssid);
-
- priv->mib_buf.type = MIB_MAC_MGMT;
- priv->mib_buf.size = 1;
- priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change);
- priv->mib_buf.data.byte = 0;
-
- ret = at76_set_mib(priv, &priv->mib_buf);
- if (ret < 0)
- printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n",
- priv->netdev->name, ret);
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
static int at76_startup_device(struct at76_priv *priv)
{
struct at76_card_config *ccfg = &priv->card_config;
@@ -4037,69 +1536,6 @@ static int at76_startup_device(struct at76_priv *priv)
return 0;
}
-/* Restart the interface */
-static void at76_dwork_restart(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- dwork_restart.work);
-
- mutex_lock(&priv->mtx);
-
- netif_carrier_off(priv->netdev); /* stop netdev watchdog */
- netif_stop_queue(priv->netdev); /* stop tx data packets */
-
- at76_startup_device(priv);
-
- if (priv->iw_mode != IW_MODE_MONITOR) {
- priv->netdev->type = ARPHRD_ETHER;
- at76_set_mac_state(priv, MAC_SCANNING);
- schedule_work(&priv->work_start_scan);
- } else {
- priv->netdev->type = ARPHRD_IEEE80211_RADIOTAP;
- at76_start_monitor(priv);
- }
-
- mutex_unlock(&priv->mtx);
-}
-
-/* Initiate scanning */
-static void at76_work_start_scan(struct work_struct *work)
-{
- struct at76_priv *priv = container_of(work, struct at76_priv,
- work_start_scan);
- int ret;
-
- mutex_lock(&priv->mtx);
-
- WARN_ON(priv->mac_state != MAC_SCANNING);
- if (priv->mac_state != MAC_SCANNING)
- goto exit;
-
- /* only clear the bss list when a scan is actively initiated,
- * otherwise simply rely on at76_bss_list_timeout */
- if (priv->scan_state == SCAN_IN_PROGRESS) {
- at76_free_bss_list(priv);
- priv->scan_need_any = 1;
- } else
- priv->scan_need_any = 0;
-
- ret = at76_start_scan(priv, 1);
-
- if (ret < 0)
- printk(KERN_ERR "%s: %s: start_scan failed with %d\n",
- priv->netdev->name, __func__, ret);
- else {
- at76_dbg(DBG_MGMT_TIMER,
- "%s:%d: starting mgmt_timer for %d ticks",
- __func__, __LINE__, SCAN_POLL_INTERVAL);
- schedule_delayed_work(&priv->dwork_get_scan,
- SCAN_POLL_INTERVAL);
- }
-
-exit:
- mutex_unlock(&priv->mtx);
-}
-
/* Enable or disable promiscuous mode */
static void at76_work_set_promisc(struct work_struct *work)
{
@@ -4133,891 +1569,12 @@ static void at76_work_submit_rx(struct work_struct *work)
mutex_unlock(&priv->mtx);
}
-/* We got an association response */
-static void at76_rx_mgmt_assoc(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- struct ieee80211_assoc_response *resp =
- (struct ieee80211_assoc_response *)buf->packet;
- u16 assoc_id = le16_to_cpu(resp->aid);
- u16 status = le16_to_cpu(resp->status);
-
- at76_dbg(DBG_RX_MGMT, "%s: rx AssocResp bssid %s capa 0x%04x status "
- "0x%04x assoc_id 0x%04x rates %s", priv->netdev->name,
- mac2str(resp->header.addr3), le16_to_cpu(resp->capability),
- status, assoc_id, hex2str(resp->info_element->data,
- resp->info_element->len));
-
- if (priv->mac_state != MAC_ASSOC) {
- printk(KERN_INFO "%s: AssocResp in state %s ignored\n",
- priv->netdev->name, mac_states[priv->mac_state]);
- return;
- }
-
- BUG_ON(!priv->curr_bss);
-
- cancel_delayed_work(&priv->dwork_assoc);
- if (status == WLAN_STATUS_SUCCESS) {
- struct bss_info *ptr = priv->curr_bss;
- priv->assoc_id = assoc_id & 0x3fff;
- /* update iwconfig params */
- memcpy(priv->bssid, ptr->bssid, ETH_ALEN);
- memcpy(priv->essid, ptr->ssid, ptr->ssid_len);
- priv->essid_size = ptr->ssid_len;
- priv->channel = ptr->channel;
- schedule_work(&priv->work_assoc_done);
- } else {
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
- }
-}
-
-/* Process disassociation request from the AP */
-static void at76_rx_mgmt_disassoc(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- struct ieee80211_disassoc *resp =
- (struct ieee80211_disassoc *)buf->packet;
- struct ieee80211_hdr_3addr *mgmt = &resp->header;
-
- at76_dbg(DBG_RX_MGMT,
- "%s: rx DisAssoc bssid %s reason 0x%04x destination %s",
- priv->netdev->name, mac2str(mgmt->addr3),
- le16_to_cpu(resp->reason), mac2str(mgmt->addr1));
-
- /* We are not connected, ignore */
- if (priv->mac_state == MAC_SCANNING || priv->mac_state == MAC_INIT
- || !priv->curr_bss)
- return;
-
- /* Not our BSSID, ignore */
- if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid))
- return;
-
- /* Not for our STA and not broadcast, ignore */
- if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1)
- && !is_broadcast_ether_addr(mgmt->addr1))
- return;
-
- if (priv->mac_state != MAC_ASSOC && priv->mac_state != MAC_CONNECTED
- && priv->mac_state != MAC_JOINING) {
- printk(KERN_INFO "%s: DisAssoc in state %s ignored\n",
- priv->netdev->name, mac_states[priv->mac_state]);
- return;
- }
-
- if (priv->mac_state == MAC_CONNECTED) {
- netif_carrier_off(priv->netdev);
- netif_stop_queue(priv->netdev);
- at76_iwevent_bss_disconnect(priv->netdev);
- }
- cancel_delayed_work(&priv->dwork_get_scan);
- cancel_delayed_work(&priv->dwork_beacon);
- cancel_delayed_work(&priv->dwork_auth);
- cancel_delayed_work(&priv->dwork_assoc);
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
-}
-
-static void at76_rx_mgmt_auth(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- struct ieee80211_auth *resp = (struct ieee80211_auth *)buf->packet;
- struct ieee80211_hdr_3addr *mgmt = &resp->header;
- int seq_nr = le16_to_cpu(resp->transaction);
- int alg = le16_to_cpu(resp->algorithm);
- int status = le16_to_cpu(resp->status);
-
- at76_dbg(DBG_RX_MGMT,
- "%s: rx AuthFrame bssid %s alg %d seq_nr %d status %d "
- "destination %s", priv->netdev->name, mac2str(mgmt->addr3),
- alg, seq_nr, status, mac2str(mgmt->addr1));
-
- if (alg == WLAN_AUTH_SHARED_KEY && seq_nr == 2)
- at76_dbg(DBG_RX_MGMT, "%s: AuthFrame challenge %s ...",
- priv->netdev->name, hex2str(resp->info_element, 18));
-
- if (priv->mac_state != MAC_AUTH) {
- printk(KERN_INFO "%s: ignored AuthFrame in state %s\n",
- priv->netdev->name, mac_states[priv->mac_state]);
- return;
- }
- if (priv->auth_mode != alg) {
- printk(KERN_INFO "%s: ignored AuthFrame for alg %d\n",
- priv->netdev->name, alg);
- return;
- }
-
- BUG_ON(!priv->curr_bss);
-
- /* Not our BSSID or not for our STA, ignore */
- if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)
- || compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1))
- return;
-
- cancel_delayed_work(&priv->dwork_auth);
- if (status != WLAN_STATUS_SUCCESS) {
- /* try to join next bss */
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
- return;
- }
-
- if (priv->auth_mode == WLAN_AUTH_OPEN || seq_nr == 4) {
- priv->retries = ASSOC_RETRIES;
- at76_set_mac_state(priv, MAC_ASSOC);
- at76_assoc_req(priv, priv->curr_bss);
- at76_dbg(DBG_MGMT_TIMER,
- "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__);
- schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT);
- return;
- }
-
- WARN_ON(seq_nr != 2);
- at76_auth_req(priv, priv->curr_bss, seq_nr + 1, resp->info_element);
- at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", __func__,
- __LINE__);
- schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT);
-}
-
-static void at76_rx_mgmt_deauth(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- struct ieee80211_disassoc *resp =
- (struct ieee80211_disassoc *)buf->packet;
- struct ieee80211_hdr_3addr *mgmt = &resp->header;
-
- at76_dbg(DBG_RX_MGMT | DBG_PROGRESS,
- "%s: rx DeAuth bssid %s reason 0x%04x destination %s",
- priv->netdev->name, mac2str(mgmt->addr3),
- le16_to_cpu(resp->reason), mac2str(mgmt->addr1));
-
- if (priv->mac_state != MAC_AUTH && priv->mac_state != MAC_ASSOC
- && priv->mac_state != MAC_CONNECTED) {
- printk(KERN_INFO "%s: DeAuth in state %s ignored\n",
- priv->netdev->name, mac_states[priv->mac_state]);
- return;
- }
-
- BUG_ON(!priv->curr_bss);
-
- /* Not our BSSID, ignore */
- if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid))
- return;
-
- /* Not for our STA and not broadcast, ignore */
- if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1)
- && !is_broadcast_ether_addr(mgmt->addr1))
- return;
-
- if (priv->mac_state == MAC_CONNECTED)
- at76_iwevent_bss_disconnect(priv->netdev);
-
- at76_set_mac_state(priv, MAC_JOINING);
- schedule_work(&priv->work_join);
- cancel_delayed_work(&priv->dwork_get_scan);
- cancel_delayed_work(&priv->dwork_beacon);
- cancel_delayed_work(&priv->dwork_auth);
- cancel_delayed_work(&priv->dwork_assoc);
-}
-
-static void at76_rx_mgmt_beacon(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- int varpar_len;
- /* beacon content */
- struct ieee80211_beacon *bdata = (struct ieee80211_beacon *)buf->packet;
- struct ieee80211_hdr_3addr *mgmt = &bdata->header;
-
- struct list_head *lptr;
- struct bss_info *match; /* entry matching addr3 with its bssid */
- int new_entry = 0;
- int len;
- struct ieee80211_info_element *ie;
- int have_ssid = 0;
- int have_rates = 0;
- int have_channel = 0;
- int keep_going = 1;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->bss_list_spinlock, flags);
- if (priv->mac_state == MAC_CONNECTED) {
- /* in state MAC_CONNECTED we use the mgmt_timer to control
- the beacon of the BSS */
- BUG_ON(!priv->curr_bss);
-
- if (!compare_ether_addr(priv->curr_bss->bssid, mgmt->addr3)) {
- /* We got our AP's beacon, defer the timeout handler.
- Kill pending work first, as schedule_delayed_work()
- won't do it. */
- cancel_delayed_work(&priv->dwork_beacon);
- schedule_delayed_work(&priv->dwork_beacon,
- BEACON_TIMEOUT);
- priv->curr_bss->rssi = buf->rssi;
- priv->beacons_received++;
- goto exit;
- }
- }
-
- /* look if we have this BSS already in the list */
- match = NULL;
-
- if (!list_empty(&priv->bss_list)) {
- list_for_each(lptr, &priv->bss_list) {
- struct bss_info *bss_ptr =
- list_entry(lptr, struct bss_info, list);
- if (!compare_ether_addr(bss_ptr->bssid, mgmt->addr3)) {
- match = bss_ptr;
- break;
- }
- }
- }
-
- if (!match) {
- /* BSS not in the list - append it */
- match = kzalloc(sizeof(struct bss_info), GFP_ATOMIC);
- if (!match) {
- at76_dbg(DBG_BSS_TABLE,
- "%s: cannot kmalloc new bss info (%zd byte)",
- priv->netdev->name, sizeof(struct bss_info));
- goto exit;
- }
- new_entry = 1;
- list_add_tail(&match->list, &priv->bss_list);
- }
-
- match->capa = le16_to_cpu(bdata->capability);
- match->beacon_interval = le16_to_cpu(bdata->beacon_interval);
- match->rssi = buf->rssi;
- match->link_qual = buf->link_quality;
- match->noise_level = buf->noise_level;
- memcpy(match->bssid, mgmt->addr3, ETH_ALEN);
- at76_dbg(DBG_RX_BEACON, "%s: bssid %s", priv->netdev->name,
- mac2str(match->bssid));
-
- ie = bdata->info_element;
-
- /* length of var length beacon parameters */
- varpar_len = min_t(int, le16_to_cpu(buf->wlength) -
- sizeof(struct ieee80211_beacon),
- BEACON_MAX_DATA_LENGTH);
-
- /* This routine steps through the bdata->data array to get
- * some useful information about the access point.
- * Currently, this implementation supports receipt of: SSID,
- * supported transfer rates and channel, in any order, with some
- * tolerance for intermittent unknown codes (although this
- * functionality may not be necessary as the useful information will
- * usually arrive in consecutively, but there have been some
- * reports of some of the useful information fields arriving in a
- * different order).
- * It does not support any more IE types although WLAN_EID_TIM may
- * be supported (on my AP at least).
- * The bdata->data array is about 1500 bytes long but only ~36 of those
- * bytes are useful, hence the have_ssid etc optimizations. */
-
- while (keep_going &&
- ((&ie->data[ie->len] - (u8 *)bdata->info_element) <=
- varpar_len)) {
-
- switch (ie->id) {
-
- case WLAN_EID_SSID:
- if (have_ssid)
- break;
-
- len = min_t(int, IW_ESSID_MAX_SIZE, ie->len);
-
- /* we copy only if this is a new entry,
- or the incoming SSID is not a hidden SSID. This
- will protect us from overwriting a real SSID read
- in a ProbeResponse with a hidden one from a
- following beacon. */
- if (!new_entry && at76_is_hidden_ssid(ie->data, len)) {
- have_ssid = 1;
- break;
- }
-
- match->ssid_len = len;
- memcpy(match->ssid, ie->data, len);
- at76_dbg(DBG_RX_BEACON, "%s: SSID - %.*s",
- priv->netdev->name, len, match->ssid);
- have_ssid = 1;
- break;
-
- case WLAN_EID_SUPP_RATES:
- if (have_rates)
- break;
-
- match->rates_len =
- min_t(int, sizeof(match->rates), ie->len);
- memcpy(match->rates, ie->data, match->rates_len);
- have_rates = 1;
- at76_dbg(DBG_RX_BEACON, "%s: SUPPORTED RATES %s",
- priv->netdev->name,
- hex2str(ie->data, ie->len));
- break;
-
- case WLAN_EID_DS_PARAMS:
- if (have_channel)
- break;
-
- match->channel = ie->data[0];
- have_channel = 1;
- at76_dbg(DBG_RX_BEACON, "%s: CHANNEL - %d",
- priv->netdev->name, match->channel);
- break;
-
- default:
- at76_dbg(DBG_RX_BEACON, "%s: beacon IE id %d len %d %s",
- priv->netdev->name, ie->id, ie->len,
- hex2str(ie->data, ie->len));
- break;
- }
-
- /* advance to the next informational element */
- next_ie(&ie);
-
- /* Optimization: after all, the bdata->data array is
- * varpar_len bytes long, whereas we get all of the useful
- * information after only ~36 bytes, this saves us a lot of
- * time (and trouble as the remaining portion of the array
- * could be full of junk)
- * Comment this out if you want to see what other information
- * comes from the AP - although little of it may be useful */
- }
-
- at76_dbg(DBG_RX_BEACON, "%s: Finished processing beacon data",
- priv->netdev->name);
-
- match->last_rx = jiffies; /* record last rx of beacon */
-
-exit:
- spin_unlock_irqrestore(&priv->bss_list_spinlock, flags);
-}
-
-/* Calculate the link level from a given rx_buffer */
-static void at76_calc_level(struct at76_priv *priv, struct at76_rx_buffer *buf,
- struct iw_quality *qual)
-{
- /* just a guess for now, might be different for other chips */
- int max_rssi = 42;
-
- qual->level = (buf->rssi * 100 / max_rssi);
- if (qual->level > 100)
- qual->level = 100;
- qual->updated |= IW_QUAL_LEVEL_UPDATED;
-}
-
-/* Calculate the link quality from a given rx_buffer */
-static void at76_calc_qual(struct at76_priv *priv, struct at76_rx_buffer *buf,
- struct iw_quality *qual)
-{
- if (at76_is_intersil(priv->board_type))
- qual->qual = buf->link_quality;
- else {
- unsigned long elapsed;
-
- /* Update qual at most once a second */
- elapsed = jiffies - priv->beacons_last_qual;
- if (elapsed < 1 * HZ)
- return;
-
- qual->qual = qual->level * priv->beacons_received *
- msecs_to_jiffies(priv->beacon_period) / elapsed;
-
- priv->beacons_last_qual = jiffies;
- priv->beacons_received = 0;
- }
- qual->qual = (qual->qual > 100) ? 100 : qual->qual;
- qual->updated |= IW_QUAL_QUAL_UPDATED;
-}
-
-/* Calculate the noise quality from a given rx_buffer */
-static void at76_calc_noise(struct at76_priv *priv, struct at76_rx_buffer *buf,
- struct iw_quality *qual)
-{
- qual->noise = 0;
- qual->updated |= IW_QUAL_NOISE_INVALID;
-}
-
-static void at76_update_wstats(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- struct iw_quality *qual = &priv->wstats.qual;
-
- if (buf->rssi && priv->mac_state == MAC_CONNECTED) {
- qual->updated = 0;
- at76_calc_level(priv, buf, qual);
- at76_calc_qual(priv, buf, qual);
- at76_calc_noise(priv, buf, qual);
- } else {
- qual->qual = 0;
- qual->level = 0;
- qual->noise = 0;
- qual->updated = IW_QUAL_ALL_INVALID;
- }
-}
-
-static void at76_rx_mgmt(struct at76_priv *priv, struct at76_rx_buffer *buf)
-{
- struct ieee80211_hdr_3addr *mgmt =
- (struct ieee80211_hdr_3addr *)buf->packet;
- u16 framectl = le16_to_cpu(mgmt->frame_ctl);
-
- /* update wstats */
- if (priv->mac_state != MAC_INIT && priv->mac_state != MAC_SCANNING) {
- /* jal: this is a dirty hack needed by Tim in ad-hoc mode */
- /* Data packets always seem to have a 0 link level, so we
- only read link quality info from management packets.
- Atmel driver actually averages the present, and previous
- values, we just present the raw value at the moment - TJS */
- if (priv->iw_mode == IW_MODE_ADHOC
- || (priv->curr_bss
- && !compare_ether_addr(mgmt->addr3,
- priv->curr_bss->bssid)))
- at76_update_wstats(priv, buf);
- }
-
- at76_dbg(DBG_RX_MGMT_CONTENT, "%s rx mgmt framectl 0x%x %s",
- priv->netdev->name, framectl,
- hex2str(mgmt, le16_to_cpu(buf->wlength)));
-
- switch (framectl & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_BEACON:
- case IEEE80211_STYPE_PROBE_RESP:
- at76_rx_mgmt_beacon(priv, buf);
- break;
-
- case IEEE80211_STYPE_ASSOC_RESP:
- at76_rx_mgmt_assoc(priv, buf);
- break;
-
- case IEEE80211_STYPE_DISASSOC:
- at76_rx_mgmt_disassoc(priv, buf);
- break;
-
- case IEEE80211_STYPE_AUTH:
- at76_rx_mgmt_auth(priv, buf);
- break;
-
- case IEEE80211_STYPE_DEAUTH:
- at76_rx_mgmt_deauth(priv, buf);
- break;
-
- default:
- printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n",
- priv->netdev->name, framectl);
- }
-
- return;
-}
-
-/* Convert the 802.11 header into an ethernet-style header, make skb
- * ready for consumption by netif_rx() */
-static void at76_ieee80211_to_eth(struct sk_buff *skb, int iw_mode)
-{
- struct ieee80211_hdr_3addr *i802_11_hdr;
- struct ethhdr *eth_hdr_p;
- u8 *src_addr;
- u8 *dest_addr;
-
- i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data;
-
- /* That would be the ethernet header if the hardware converted
- * the frame for us. Make sure the source and the destination
- * match the 802.11 header. Which hardware does it? */
- eth_hdr_p = (struct ethhdr *)skb_pull(skb, IEEE80211_3ADDR_LEN);
-
- dest_addr = i802_11_hdr->addr1;
- if (iw_mode == IW_MODE_ADHOC)
- src_addr = i802_11_hdr->addr2;
- else
- src_addr = i802_11_hdr->addr3;
-
- if (!compare_ether_addr(eth_hdr_p->h_source, src_addr) &&
- !compare_ether_addr(eth_hdr_p->h_dest, dest_addr))
- /* Yes, we already have an ethernet header */
- skb_reset_mac_header(skb);
- else {
- u16 len;
-
- /* Need to build an ethernet header */
- if (!memcmp(skb->data, snapsig, sizeof(snapsig))) {
- /* SNAP frame - decapsulate, keep proto */
- skb_push(skb, offsetof(struct ethhdr, h_proto) -
- sizeof(rfc1042sig));
- len = 0;
- } else {
- /* 802.3 frame, proto is length */
- len = skb->len;
- skb_push(skb, ETH_HLEN);
- }
-
- skb_reset_mac_header(skb);
- eth_hdr_p = eth_hdr(skb);
- /* This needs to be done in this order (eth_hdr_p->h_dest may
- * overlap src_addr) */
- memcpy(eth_hdr_p->h_source, src_addr, ETH_ALEN);
- memcpy(eth_hdr_p->h_dest, dest_addr, ETH_ALEN);
- if (len)
- eth_hdr_p->h_proto = htons(len);
- }
-
- skb->protocol = eth_type_trans(skb, skb->dev);
-}
-
-/* Check for fragmented data in priv->rx_skb. If the packet was no fragment
- or it was the last of a fragment set a skb containing the whole packet
- is returned for further processing. Otherwise we get NULL and are
- done and the packet is either stored inside the fragment buffer
- or thrown away. Every returned skb starts with the ieee802_11 header
- and contains _no_ FCS at the end */
-static struct sk_buff *at76_check_for_rx_frags(struct at76_priv *priv)
-{
- struct sk_buff *skb = priv->rx_skb;
- struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data;
- struct ieee80211_hdr_3addr *i802_11_hdr =
- (struct ieee80211_hdr_3addr *)buf->packet;
- /* seq_ctrl, fragment_number, sequence number of new packet */
- u16 sctl = le16_to_cpu(i802_11_hdr->seq_ctl);
- u16 fragnr = sctl & 0xf;
- u16 seqnr = sctl >> 4;
- u16 frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl);
-
- /* Length including the IEEE802.11 header, but without the trailing
- * FCS and without the Atmel Rx header */
- int length = le16_to_cpu(buf->wlength) - FCS_LEN;
-
- /* where does the data payload start in skb->data ? */
- u8 *data = i802_11_hdr->payload;
-
- /* length of payload, excl. the trailing FCS */
- int data_len = length - IEEE80211_3ADDR_LEN;
-
- int i;
- struct rx_data_buf *bptr, *optr;
- unsigned long oldest = ~0UL;
-
- at76_dbg(DBG_RX_FRAGS,
- "%s: rx data frame_ctl %04x addr2 %s seq/frag %d/%d "
- "length %d data %d: %s ...", priv->netdev->name, frame_ctl,
- mac2str(i802_11_hdr->addr2), seqnr, fragnr, length, data_len,
- hex2str(data, 32));
-
- at76_dbg(DBG_RX_FRAGS_SKB, "%s: incoming skb: head %p data %p "
- "tail %p end %p len %d", priv->netdev->name, skb->head,
- skb->data, skb_tail_pointer(skb), skb_end_pointer(skb),
- skb->len);
-
- if (data_len < 0) {
- /* make sure data starts in the buffer */
- printk(KERN_INFO "%s: data frame too short\n",
- priv->netdev->name);
- return NULL;
- }
-
- WARN_ON(length <= AT76_RX_HDRLEN);
- if (length <= AT76_RX_HDRLEN)
- return NULL;
-
- /* remove the at76_rx_buffer header - we don't need it anymore */
- /* we need the IEEE802.11 header (for the addresses) if this packet
- is the first of a chain */
- skb_pull(skb, AT76_RX_HDRLEN);
-
- /* remove FCS at end */
- skb_trim(skb, length);
-
- at76_dbg(DBG_RX_FRAGS_SKB, "%s: trimmed skb: head %p data %p tail %p "
- "end %p len %d data %p data_len %d", priv->netdev->name,
- skb->head, skb->data, skb_tail_pointer(skb),
- skb_end_pointer(skb), skb->len, data, data_len);
-
- if (fragnr == 0 && !(frame_ctl & IEEE80211_FCTL_MOREFRAGS)) {
- /* unfragmented packet received */
- /* Use a new skb for the next receive */
- priv->rx_skb = NULL;
- at76_dbg(DBG_RX_FRAGS, "%s: unfragmented", priv->netdev->name);
- return skb;
- }
-
- /* look if we've got a chain for the sender address.
- afterwards optr points to first free or the oldest entry,
- or, if i < NR_RX_DATA_BUF, bptr points to the entry for the
- sender address */
- /* determining the oldest entry doesn't cope with jiffies wrapping
- but I don't care to delete a young entry at these rare moments ... */
-
- bptr = priv->rx_data;
- optr = NULL;
- for (i = 0; i < NR_RX_DATA_BUF; i++, bptr++) {
- if (!bptr->skb) {
- optr = bptr;
- oldest = 0UL;
- continue;
- }
-
- if (!compare_ether_addr(i802_11_hdr->addr2, bptr->sender))
- break;
-
- if (!optr) {
- optr = bptr;
- oldest = bptr->last_rx;
- } else if (bptr->last_rx < oldest)
- optr = bptr;
- }
-
- if (i < NR_RX_DATA_BUF) {
-
- at76_dbg(DBG_RX_FRAGS, "%s: %d. cacheentry (seq/frag = %d/%d) "
- "matched sender addr",
- priv->netdev->name, i, bptr->seqnr, bptr->fragnr);
-
- /* bptr points to an entry for the sender address */
- if (bptr->seqnr == seqnr) {
- int left;
- /* the fragment has the current sequence number */
- if (((bptr->fragnr + 1) & 0xf) != fragnr) {
- /* wrong fragment number -> ignore it */
- /* is & 0xf necessary above ??? */
- at76_dbg(DBG_RX_FRAGS,
- "%s: frag nr mismatch: %d + 1 != %d",
- priv->netdev->name, bptr->fragnr,
- fragnr);
- return NULL;
- }
- bptr->last_rx = jiffies;
- /* the next following fragment number ->
- add the data at the end */
-
- /* for test only ??? */
- left = skb_tailroom(bptr->skb);
- if (left < data_len)
- printk(KERN_INFO
- "%s: only %d byte free (need %d)\n",
- priv->netdev->name, left, data_len);
- else
- memcpy(skb_put(bptr->skb, data_len), data,
- data_len);
-
- bptr->fragnr = fragnr;
- if (frame_ctl & IEEE80211_FCTL_MOREFRAGS)
- return NULL;
-
- /* this was the last fragment - send it */
- skb = bptr->skb;
- bptr->skb = NULL; /* free the entry */
- at76_dbg(DBG_RX_FRAGS, "%s: last frag of seq %d",
- priv->netdev->name, seqnr);
- return skb;
- }
-
- /* got another sequence number */
- if (fragnr == 0) {
- /* it's the start of a new chain - replace the
- old one by this */
- /* bptr->sender has the correct value already */
- at76_dbg(DBG_RX_FRAGS,
- "%s: start of new seq %d, removing old seq %d",
- priv->netdev->name, seqnr, bptr->seqnr);
- bptr->seqnr = seqnr;
- bptr->fragnr = 0;
- bptr->last_rx = jiffies;
- /* swap bptr->skb and priv->rx_skb */
- skb = bptr->skb;
- bptr->skb = priv->rx_skb;
- priv->rx_skb = skb;
- } else {
- /* it from the middle of a new chain ->
- delete the old entry and skip the new one */
- at76_dbg(DBG_RX_FRAGS,
- "%s: middle of new seq %d (%d) "
- "removing old seq %d",
- priv->netdev->name, seqnr, fragnr,
- bptr->seqnr);
- dev_kfree_skb(bptr->skb);
- bptr->skb = NULL;
- }
- return NULL;
- }
-
- /* if we didn't find a chain for the sender address, optr
- points either to the first free or the oldest entry */
-
- if (fragnr != 0) {
- /* this is not the begin of a fragment chain ... */
- at76_dbg(DBG_RX_FRAGS,
- "%s: no chain for non-first fragment (%d)",
- priv->netdev->name, fragnr);
- return NULL;
- }
-
- BUG_ON(!optr);
- if (optr->skb) {
- /* swap the skb's */
- skb = optr->skb;
- optr->skb = priv->rx_skb;
- priv->rx_skb = skb;
-
- at76_dbg(DBG_RX_FRAGS,
- "%s: free old contents: sender %s seq/frag %d/%d",
- priv->netdev->name, mac2str(optr->sender),
- optr->seqnr, optr->fragnr);
-
- } else {
- /* take the skb from priv->rx_skb */
- optr->skb = priv->rx_skb;
- /* let at76_submit_rx_urb() allocate a new skb */
- priv->rx_skb = NULL;
-
- at76_dbg(DBG_RX_FRAGS, "%s: use a free entry",
- priv->netdev->name);
- }
- memcpy(optr->sender, i802_11_hdr->addr2, ETH_ALEN);
- optr->seqnr = seqnr;
- optr->fragnr = 0;
- optr->last_rx = jiffies;
-
- return NULL;
-}
-
-/* Rx interrupt: we expect the complete data buffer in priv->rx_skb */
-static void at76_rx_data(struct at76_priv *priv)
-{
- struct net_device *netdev = priv->netdev;
- struct net_device_stats *stats = &priv->stats;
- struct sk_buff *skb = priv->rx_skb;
- struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data;
- struct ieee80211_hdr_3addr *i802_11_hdr;
- int length = le16_to_cpu(buf->wlength);
-
- at76_dbg(DBG_RX_DATA, "%s received data packet: %s", netdev->name,
- hex2str(skb->data, AT76_RX_HDRLEN));
-
- at76_dbg(DBG_RX_DATA_CONTENT, "rx packet: %s",
- hex2str(skb->data + AT76_RX_HDRLEN, length));
-
- skb = at76_check_for_rx_frags(priv);
- if (!skb)
- return;
-
- /* Atmel header and the FCS are already removed */
- i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data;
-
- skb->dev = netdev;
- skb->ip_summed = CHECKSUM_NONE; /* TODO: should check CRC */
-
- if (is_broadcast_ether_addr(i802_11_hdr->addr1)) {
- if (!compare_ether_addr(i802_11_hdr->addr1, netdev->broadcast))
- skb->pkt_type = PACKET_BROADCAST;
- else
- skb->pkt_type = PACKET_MULTICAST;
- } else if (compare_ether_addr(i802_11_hdr->addr1, netdev->dev_addr))
- skb->pkt_type = PACKET_OTHERHOST;
-
- at76_ieee80211_to_eth(skb, priv->iw_mode);
-
- netdev->last_rx = jiffies;
- netif_rx(skb);
- stats->rx_packets++;
- stats->rx_bytes += length;
-
- return;
-}
-
-static void at76_rx_monitor_mode(struct at76_priv *priv)
-{
- struct at76_rx_radiotap *rt;
- u8 *payload;
- int skblen;
- struct net_device *netdev = priv->netdev;
- struct at76_rx_buffer *buf =
- (struct at76_rx_buffer *)priv->rx_skb->data;
- /* length including the IEEE802.11 header and the trailing FCS,
- but not at76_rx_buffer */
- int length = le16_to_cpu(buf->wlength);
- struct sk_buff *skb = priv->rx_skb;
- struct net_device_stats *stats = &priv->stats;
-
- if (length < FCS_LEN) {
- /* buffer contains no data */
- at76_dbg(DBG_MONITOR_MODE,
- "%s: MONITOR MODE: rx skb without data",
- priv->netdev->name);
- return;
- }
-
- skblen = sizeof(struct at76_rx_radiotap) + length;
-
- skb = dev_alloc_skb(skblen);
- if (!skb) {
- printk(KERN_ERR "%s: MONITOR MODE: dev_alloc_skb for radiotap "
- "header returned NULL\n", priv->netdev->name);
- return;
- }
-
- skb_put(skb, skblen);
-
- rt = (struct at76_rx_radiotap *)skb->data;
- payload = skb->data + sizeof(struct at76_rx_radiotap);
-
- rt->rt_hdr.it_version = 0;
- rt->rt_hdr.it_pad = 0;
- rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct at76_rx_radiotap));
- rt->rt_hdr.it_present = cpu_to_le32(AT76_RX_RADIOTAP_PRESENT);
-
- rt->rt_tsft = cpu_to_le64(le32_to_cpu(buf->rx_time));
- rt->rt_rate = hw_rates[buf->rx_rate] & (~0x80);
- rt->rt_signal = buf->rssi;
- rt->rt_noise = buf->noise_level;
- rt->rt_flags = IEEE80211_RADIOTAP_F_FCS;
- if (buf->fragmentation)
- rt->rt_flags |= IEEE80211_RADIOTAP_F_FRAG;
-
- memcpy(payload, buf->packet, length);
- skb->dev = netdev;
- skb->ip_summed = CHECKSUM_NONE;
- skb_reset_mac_header(skb);
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
-
- netdev->last_rx = jiffies;
- netif_rx(skb);
- stats->rx_packets++;
- stats->rx_bytes += length;
-}
-
-/* Check if we spy on the sender address in buf and update stats */
-static void at76_iwspy_update(struct at76_priv *priv,
- struct at76_rx_buffer *buf)
-{
- struct ieee80211_hdr_3addr *hdr =
- (struct ieee80211_hdr_3addr *)buf->packet;
- struct iw_quality qual;
-
- /* We can only set the level here */
- qual.updated = IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
- qual.level = 0;
- qual.noise = 0;
- at76_calc_level(priv, buf, &qual);
-
- spin_lock_bh(&priv->spy_spinlock);
-
- if (priv->spy_data.spy_number > 0)
- wireless_spy_update(priv->netdev, hdr->addr2, &qual);
-
- spin_unlock_bh(&priv->spy_spinlock);
-}
-
static void at76_rx_tasklet(unsigned long param)
{
struct urb *urb = (struct urb *)param;
struct at76_priv *priv = urb->context;
- struct net_device *netdev = priv->netdev;
struct at76_rx_buffer *buf;
- struct ieee80211_hdr_3addr *i802_11_hdr;
- u16 frame_ctl;
+ struct ieee80211_rx_status rx_status = {0};
if (priv->device_unplugged) {
at76_dbg(DBG_DEVSTART, "device unplugged");
@@ -5031,10 +1588,6 @@ static void at76_rx_tasklet(unsigned long param)
buf = (struct at76_rx_buffer *)priv->rx_skb->data;
- i802_11_hdr = (struct ieee80211_hdr_3addr *)buf->packet;
-
- frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl);
-
if (urb->status != 0) {
if (urb->status != -ENOENT && urb->status != -ECONNRESET)
at76_dbg(DBG_URB,
@@ -5049,64 +1602,23 @@ static void at76_rx_tasklet(unsigned long param)
wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi,
buf->noise_level, buf->link_quality);
- {
- struct ieee80211_rx_status rx_status = {0};
- skb_pull(priv->rx_skb, AT76_RX_HDRLEN);
- skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength));
- at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data,
- priv->rx_skb->len, "RX: len=%d",
- priv->rx_skb->len);
-
- rx_status.ssi = buf->rssi;
- rx_status.flag |= RX_FLAG_DECRYPTED;
- rx_status.flag |= RX_FLAG_IV_STRIPPED;
+ skb_pull(priv->rx_skb, AT76_RX_HDRLEN);
+ skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength));
+ at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data,
+ priv->rx_skb->len, "RX: len=%d",
+ priv->rx_skb->len);
- at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d",
- priv->rx_skb->len, priv->rx_skb->data_len);
- ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status);
+ rx_status.ssi = buf->rssi;
+ rx_status.flag |= RX_FLAG_DECRYPTED;
+ rx_status.flag |= RX_FLAG_IV_STRIPPED;
- /* Use a new skb for the next receive */
- priv->rx_skb = NULL;
+ at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d",
+ priv->rx_skb->len, priv->rx_skb->data_len);
+ ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status);
- goto exit;
- }
+ /* Use a new skb for the next receive */
+ priv->rx_skb = NULL;
- if (priv->iw_mode == IW_MODE_MONITOR) {
- at76_rx_monitor_mode(priv);
- goto exit;
- }
-
- /* there is a new bssid around, accept it: */
- if (buf->newbss && priv->iw_mode == IW_MODE_ADHOC) {
- at76_dbg(DBG_PROGRESS, "%s: rx newbss", netdev->name);
- schedule_work(&priv->work_new_bss);
- }
-
- switch (frame_ctl & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- at76_rx_data(priv);
- break;
-
- case IEEE80211_FTYPE_MGMT:
- /* jal: TODO: find out if we can update iwspy also on
- other frames than management (might depend on the
- radio chip / firmware version !) */
-
- at76_iwspy_update(priv, buf);
-
- at76_rx_mgmt(priv, buf);
- break;
-
- case IEEE80211_FTYPE_CTL:
- at76_dbg(DBG_RX_CTRL, "%s: ignored ctrl frame: %04x",
- priv->netdev->name, frame_ctl);
- break;
-
- default:
- printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n",
- priv->netdev->name, frame_ctl);
- }
-exit:
at76_submit_rx_urb(priv);
}
@@ -5612,11 +2124,8 @@ static const struct ieee80211_ops at76_ops = {
/* Allocate network device and initialize private data */
static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
{
- struct at76_netdev_priv *netdevice_priv;
- struct net_device *netdev;
struct ieee80211_hw *hw;
struct at76_priv *priv;
- int i;
hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops);
if (!hw) {
@@ -5628,52 +2137,13 @@ static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
priv = hw->priv;
priv->hw = hw;
- /* allocate memory for our device state and initialize it */
- netdev = alloc_etherdev(sizeof(struct at76_netdev_priv));
- if (!netdev) {
- dev_printk(KERN_ERR, &udev->dev, "out of memory\n");
- return NULL;
- }
-
- netdevice_priv = netdev_priv(netdev);
- netdevice_priv->at76_priv = NULL;
-
priv->udev = udev;
- priv->netdev = netdev;
mutex_init(&priv->mtx);
- INIT_WORK(&priv->work_assoc_done, at76_work_assoc_done);
- INIT_WORK(&priv->work_join, at76_work_join);
- INIT_WORK(&priv->work_new_bss, at76_work_new_bss);
- INIT_WORK(&priv->work_start_scan, at76_work_start_scan);
INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc);
INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx);
- INIT_DELAYED_WORK(&priv->dwork_restart, at76_dwork_restart);
- INIT_DELAYED_WORK(&priv->dwork_get_scan, at76_dwork_get_scan);
- INIT_DELAYED_WORK(&priv->dwork_beacon, at76_dwork_beacon);
- INIT_DELAYED_WORK(&priv->dwork_auth, at76_dwork_auth);
- INIT_DELAYED_WORK(&priv->dwork_assoc, at76_dwork_assoc);
INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan);
- spin_lock_init(&priv->mgmt_spinlock);
- priv->next_mgmt_bulk = NULL;
- priv->mac_state = MAC_INIT;
-
- /* initialize empty BSS list */
- priv->curr_bss = NULL;
- INIT_LIST_HEAD(&priv->bss_list);
- spin_lock_init(&priv->bss_list_spinlock);
-
- init_timer(&priv->bss_list_timer);
- priv->bss_list_timer.data = (unsigned long)priv;
- priv->bss_list_timer.function = at76_bss_list_timeout;
-
- spin_lock_init(&priv->spy_spinlock);
-
- /* mark all rx data entries as unused */
- for (i = 0; i < NR_RX_DATA_BUF; i++)
- priv->rx_data[i].skb = NULL;
-
priv->rx_tasklet.func = at76_rx_tasklet;
priv->rx_tasklet.data = 0;
@@ -5799,7 +2269,6 @@ static struct ieee80211_supported_band at76_supported_band = {
static int at76_init_new_device(struct at76_priv *priv,
struct usb_interface *interface)
{
- struct net_device *netdev = priv->netdev;
int ret;
/* set up the endpoint information */
@@ -5821,8 +2290,6 @@ static int at76_init_new_device(struct at76_priv *priv,
}
priv->domain = at76_get_reg_domain(priv->regulatory_domain);
- /* init. netdev->dev_addr */
- memcpy(netdev->dev_addr, priv->mac_addr, ETH_ALEN);
priv->channel = DEF_CHANNEL;
priv->iw_mode = IW_MODE_INFRA;
@@ -5832,33 +2299,11 @@ static int at76_init_new_device(struct at76_priv *priv,
priv->txrate = TX_RATE_AUTO;
priv->preamble_type = PREAMBLE_TYPE_LONG;
priv->beacon_period = 100;
- priv->beacons_last_qual = jiffies;
priv->auth_mode = WLAN_AUTH_OPEN;
priv->scan_min_time = DEF_SCAN_MIN_TIME;
priv->scan_max_time = DEF_SCAN_MAX_TIME;
priv->scan_mode = SCAN_TYPE_ACTIVE;
- netdev->flags &= ~IFF_MULTICAST; /* not yet or never */
- netdev->open = at76_open;
- netdev->stop = at76_stop;
- netdev->get_stats = at76_get_stats;
- netdev->ethtool_ops = &at76_ethtool_ops;
-
- /* Add pointers to enable iwspy support. */
- priv->wireless_data.spy_data = &priv->spy_data;
- netdev->wireless_data = &priv->wireless_data;
-
- netdev->hard_start_xmit = at76_tx;
- netdev->tx_timeout = at76_tx_timeout;
- netdev->watchdog_timeo = 2 * HZ;
- netdev->wireless_handlers = &at76_handler_def;
- netdev->set_multicast_list = at76_set_multicast;
- netdev->set_mac_address = at76_set_mac_address;
- dev_alloc_name(netdev, "wlan%d");
-
- /* we let this timer run the whole time this driver instance lives */
- mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT);
-
/* mac80211 initialisation */
priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band;
priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS;
@@ -5890,16 +2335,11 @@ exit:
static void at76_delete_device(struct at76_priv *priv)
{
- int i;
-
at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
/* The device is gone, don't bother turning it off */
priv->device_unplugged = 1;
- if (priv->netdev_registered)
- unregister_netdev(priv->netdev);
-
if (priv->mac80211_registered)
ieee80211_unregister_hw(priv->hw);
@@ -5922,26 +2362,10 @@ static void at76_delete_device(struct at76_priv *priv)
if (priv->rx_skb)
kfree_skb(priv->rx_skb);
- at76_free_bss_list(priv);
- del_timer_sync(&priv->bss_list_timer);
- cancel_delayed_work(&priv->dwork_get_scan);
- cancel_delayed_work(&priv->dwork_beacon);
- cancel_delayed_work(&priv->dwork_auth);
- cancel_delayed_work(&priv->dwork_assoc);
-
- if (priv->mac_state == MAC_CONNECTED)
- at76_iwevent_bss_disconnect(priv->netdev);
-
- for (i = 0; i < NR_RX_DATA_BUF; i++)
- if (priv->rx_data[i].skb) {
- dev_kfree_skb(priv->rx_data[i].skb);
- priv->rx_data[i].skb = NULL;
- }
usb_put_dev(priv->udev);
at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw",
__func__);
- free_netdev(priv->netdev);
ieee80211_free_hw(priv->hw);
at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
@@ -6038,7 +2462,6 @@ static int at76_probe(struct usb_interface *interface,
goto error;
}
- SET_NETDEV_DEV(priv->netdev, &interface->dev);
usb_set_intfdata(interface, priv);
memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version));
diff --git a/drivers/net/wireless/at76_usb.h b/drivers/net/wireless/at76_usb.h
index a79e33e..626becd 100644
--- a/drivers/net/wireless/at76_usb.h
+++ b/drivers/net/wireless/at76_usb.h
@@ -34,23 +34,6 @@ enum board_type {
BOARD_505AMX = 8
};
-/* our private ioctl's */
-/* preamble length (0 - long, 1 - short, 2 - auto) */
-#define AT76_SET_SHORT_PREAMBLE (SIOCIWFIRSTPRIV + 0)
-#define AT76_GET_SHORT_PREAMBLE (SIOCIWFIRSTPRIV + 1)
-/* which debug channels are enabled */
-#define AT76_SET_DEBUG (SIOCIWFIRSTPRIV + 2)
-#define AT76_GET_DEBUG (SIOCIWFIRSTPRIV + 3)
-/* power save mode (incl. the Atmel proprietary smart save mode) */
-#define AT76_SET_POWERSAVE_MODE (SIOCIWFIRSTPRIV + 4)
-#define AT76_GET_POWERSAVE_MODE (SIOCIWFIRSTPRIV + 5)
-/* min and max channel times for scan */
-#define AT76_SET_SCAN_TIMES (SIOCIWFIRSTPRIV + 6)
-#define AT76_GET_SCAN_TIMES (SIOCIWFIRSTPRIV + 7)
-/* scan mode (0 - active, 1 - passive) */
-#define AT76_SET_SCAN_MODE (SIOCIWFIRSTPRIV + 8)
-#define AT76_GET_SCAN_MODE (SIOCIWFIRSTPRIV + 9)
-
#define CMD_STATUS_IDLE 0x00
#define CMD_STATUS_COMPLETE 0x01
#define CMD_STATUS_UNKNOWN 0x02
@@ -365,16 +348,6 @@ struct at76_fw_header {
__le32 ext_fw_len; /* external firmware image length */
} __attribute__((packed));
-enum mac_state {
- MAC_INIT,
- MAC_SCANNING,
- MAC_AUTH,
- MAC_ASSOC,
- MAC_JOINING,
- MAC_CONNECTED,
- MAC_OWN_IBSS
-};
-
/* a description of a regulatory domain and the allowed channels */
struct reg_domain {
u16 code;
@@ -382,36 +355,6 @@ struct reg_domain {
u32 channel_map; /* if bit N is set, channel (N+1) is allowed */
};
-/* how long do we keep a (I)BSS in the bss_list in jiffies
- this should be long enough for the user to retrieve the table
- (by iwlist ?) after the device started, because all entries from
- other channels than the one the device locks on get removed, too */
-#define BSS_LIST_TIMEOUT (120 * HZ)
-/* struct to store BSS info found during scan */
-#define BSS_LIST_MAX_RATE_LEN 32 /* 32 rates should be enough ... */
-
-struct bss_info {
- struct list_head list;
-
- u8 bssid[ETH_ALEN]; /* bssid */
- u8 ssid[IW_ESSID_MAX_SIZE]; /* essid */
- u8 ssid_len; /* length of ssid above */
- u8 channel;
- u16 capa; /* BSS capabilities */
- u16 beacon_interval; /* beacon interval, Kus (1024 microseconds) */
- u8 rates[BSS_LIST_MAX_RATE_LEN]; /* supported rates in units of
- 500 kbps, ORed with 0x80 for
- basic rates */
- u8 rates_len;
-
- /* quality of received beacon */
- u8 rssi;
- u8 link_qual;
- u8 noise_level;
-
- unsigned long last_rx; /* time (jiffies) of last beacon received */
-};
-
/* a rx data buffer to collect rx fragments */
struct rx_data_buf {
u8 sender[ETH_ALEN]; /* sender address */
@@ -439,9 +382,6 @@ struct fwentry {
struct at76_priv {
struct usb_device *udev; /* USB device pointer */
- struct net_device *netdev; /* net device pointer */
- struct net_device_stats stats; /* net device stats */
- struct iw_statistics wstats; /* wireless stats */
struct sk_buff *rx_skb; /* skbuff for receiving data */
struct sk_buff *tx_skb; /* skbuff for transmitting data */
@@ -456,17 +396,8 @@ struct at76_priv {
struct mutex mtx; /* locks this structure */
/* work queues */
- struct work_struct work_assoc_done;
- struct work_struct work_join;
- struct work_struct work_new_bss;
- struct work_struct work_start_scan;
struct work_struct work_set_promisc;
struct work_struct work_submit_rx;
- struct delayed_work dwork_restart;
- struct delayed_work dwork_get_scan;
- struct delayed_work dwork_beacon;
- struct delayed_work dwork_auth;
- struct delayed_work dwork_assoc;
struct delayed_work dwork_hw_scan;
struct tasklet_struct rx_tasklet;
@@ -497,44 +428,13 @@ struct at76_priv {
int scan_mode; /* SCAN_TYPE_ACTIVE, SCAN_TYPE_PASSIVE */
int scan_need_any; /* if set, need to scan for any ESSID */
- /* the list we got from scanning */
- spinlock_t bss_list_spinlock; /* protects bss_list operations */
- struct list_head bss_list; /* list of BSS we got beacons from */
- struct timer_list bss_list_timer; /* timer to purge old entries
- from bss_list */
- struct bss_info *curr_bss; /* current BSS */
u16 assoc_id; /* current association ID, if associated */
- u8 wanted_bssid[ETH_ALEN];
- int wanted_bssid_valid; /* != 0 if wanted_bssid is to be used */
-
- /* some data for infrastructure mode only */
- spinlock_t mgmt_spinlock; /* this spinlock protects access to
- next_mgmt_bulk */
-
- struct at76_tx_buffer *next_mgmt_bulk; /* pending management msg to
- send via bulk out */
- enum mac_state mac_state;
- enum {
- SCAN_IDLE,
- SCAN_IN_PROGRESS,
- SCAN_COMPLETED
- } scan_state;
- time_t last_scan;
-
- int retries; /* remaining retries in case of timeout when
- * sending AuthReq or AssocReq */
u8 pm_mode; /* power management mode */
u32 pm_period; /* power management period in microseconds */
struct reg_domain const *domain; /* reg domain description */
- /* iwspy support */
- spinlock_t spy_spinlock;
- struct iw_spy_data spy_data;
-
- struct iw_public_data wireless_data;
-
/* These fields contain HW config provided by the device (not all of
* these fields are used by all board types) */
u8 mac_addr[ETH_ALEN];
@@ -542,9 +442,6 @@ struct at76_priv {
struct at76_card_config card_config;
- /* store rx fragments until complete */
- struct rx_data_buf rx_data[NR_RX_DATA_BUF];
-
enum board_type board_type;
struct mib_fw_version fw_version;
@@ -552,68 +449,17 @@ struct at76_priv {
unsigned int netdev_registered:1;
struct set_mib_buffer mib_buf; /* global buffer for set_mib calls */
- /* beacon counting */
int beacon_period; /* period of mgmt beacons, Kus */
- int beacons_received;
- unsigned long beacons_last_qual; /* time we restarted counting
- beacons */
struct ieee80211_hw *hw;
struct ieee80211_tx_status tx_status;
int mac80211_registered;
};
-struct at76_netdev_priv {
- struct at76_priv *at76_priv;
-};
-
-struct at76_rx_radiotap {
- struct ieee80211_radiotap_header rt_hdr;
- __le64 rt_tsft;
- u8 rt_flags;
- u8 rt_rate;
- s8 rt_signal;
- s8 rt_noise;
-};
-
#define AT76_SUPPORTED_FILTERS FIF_PROMISC_IN_BSS
-#define AT76_RX_RADIOTAP_PRESENT \
- ((1 << IEEE80211_RADIOTAP_TSFT) | \
- (1 << IEEE80211_RADIOTAP_FLAGS) | \
- (1 << IEEE80211_RADIOTAP_RATE) | \
- (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) | \
- (1 << IEEE80211_RADIOTAP_DB_ANTNOISE))
-
-#define BEACON_MAX_DATA_LENGTH 1500
-
-/* the maximum size of an AssocReq packet */
-#define ASSOCREQ_MAX_SIZE \
- (AT76_TX_HDRLEN + sizeof(struct ieee80211_assoc_request) + \
- 1 + 1 + IW_ESSID_MAX_SIZE + 1 + 1 + 4)
-
-/* for shared secret auth, add the challenge text size */
-#define AUTH_FRAME_SIZE (AT76_TX_HDRLEN + sizeof(struct ieee80211_auth))
-
-/* Maximal number of AuthReq retries */
-#define AUTH_RETRIES 3
-
-/* Maximal number of AssocReq retries */
-#define ASSOC_RETRIES 3
-
-/* Beacon timeout in managed mode when we are connected */
-#define BEACON_TIMEOUT (10 * HZ)
-
-/* Timeout for authentication response */
-#define AUTH_TIMEOUT (1 * HZ)
-
-/* Timeout for association response */
-#define ASSOC_TIMEOUT (1 * HZ)
-
-/* Polling interval when scan is running */
#define SCAN_POLL_INTERVAL (HZ / 4)
-/* Command completion timeout */
#define CMD_COMPLETION_TIMEOUT (5 * HZ)
#define DEF_RTS_THRESHOLD 1536
@@ -628,65 +474,4 @@ struct at76_rx_radiotap {
#define MIN_FRAG_THRESHOLD 256
-struct ieee80211_info_element {
- u8 id;
- u8 len;
- u8 data[0];
-} __attribute__((packed));
-
-struct ieee80211_hdr_3addr {
- __le16 frame_ctl;
- __le16 duration_id;
- u8 addr1[ETH_ALEN];
- u8 addr2[ETH_ALEN];
- u8 addr3[ETH_ALEN];
- __le16 seq_ctl;
- u8 payload[0];
-} __attribute__((packed));
-
-struct ieee80211_auth {
- struct ieee80211_hdr_3addr header;
- __le16 algorithm;
- __le16 transaction;
- __le16 status;
- /* challenge */
- struct ieee80211_info_element info_element[0];
-} __attribute__((packed));
-
-struct ieee80211_assoc_request {
- struct ieee80211_hdr_3addr header;
- __le16 capability;
- __le16 listen_interval;
- /* SSID, supported rates, RSN */
- struct ieee80211_info_element info_element[0];
-} __attribute__((packed));
-
-struct ieee80211_assoc_response {
- struct ieee80211_hdr_3addr header;
- __le16 capability;
- __le16 status;
- __le16 aid;
- /* supported rates */
- struct ieee80211_info_element info_element[0];
-} __attribute__((packed));
-
-struct ieee80211_disassoc {
- struct ieee80211_hdr_3addr header;
- __le16 reason;
-} __attribute__((packed));
-
-struct ieee80211_probe_response {
- struct ieee80211_hdr_3addr header;
- u32 time_stamp[2];
- __le16 beacon_interval;
- __le16 capability;
- /* SSID, supported rates, FH params, DS params,
- * CF params, IBSS params, TIM (if beacon), RSN */
- struct ieee80211_info_element info_element[0];
-} __attribute__((packed));
-
-#define ieee80211_beacon ieee80211_probe_response
-
-#define IEEE80211_3ADDR_LEN sizeof(struct ieee80211_hdr_3addr)
-
#endif /* _AT76_USB_H */
-
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